1 /* NDS32-specific support for 32-bit ELF.
2 Copyright (C) 2012-2016 Free Software Foundation, Inc.
3 Contributed by Andes Technology Corporation.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
25 #include "bfd_stdint.h"
29 #include "libiberty.h"
30 #include "bfd_stdint.h"
31 #include "elf/nds32.h"
32 #include "opcode/nds32.h"
33 #include "elf32-nds32.h"
34 #include "opcode/cgen.h"
35 #include "../opcodes/nds32-opc.h"
37 /* Relocation HOWTO functions. */
38 static bfd_reloc_status_type nds32_elf_ignore_reloc
39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
40 static bfd_reloc_status_type nds32_elf_9_pcrel_reloc
41 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
42 static bfd_reloc_status_type nds32_elf_hi20_reloc
43 (bfd *, arelent *, asymbol *, void *,
44 asection *, bfd *, char **);
45 static bfd_reloc_status_type nds32_elf_lo12_reloc
46 (bfd *, arelent *, asymbol *, void *,
47 asection *, bfd *, char **);
48 static bfd_reloc_status_type nds32_elf_generic_reloc
49 (bfd *, arelent *, asymbol *, void *,
50 asection *, bfd *, char **);
51 static bfd_reloc_status_type nds32_elf_sda15_reloc
52 (bfd *, arelent *, asymbol *, void *,
53 asection *, bfd *, char **);
55 /* Helper functions for HOWTO. */
56 static bfd_reloc_status_type nds32_elf_do_9_pcrel_reloc
57 (bfd *, reloc_howto_type *, asection *, bfd_byte *, bfd_vma,
58 asection *, bfd_vma, bfd_vma);
59 static void nds32_elf_relocate_hi20
60 (bfd *, int, Elf_Internal_Rela *, Elf_Internal_Rela *, bfd_byte *, bfd_vma);
61 static reloc_howto_type *bfd_elf32_bfd_reloc_type_table_lookup
62 (enum elf_nds32_reloc_type);
63 static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
64 (bfd *, bfd_reloc_code_real_type);
67 static void nds32_info_to_howto_rel
68 (bfd *, arelent *, Elf_Internal_Rela *dst);
69 static void nds32_info_to_howto
70 (bfd *, arelent *, Elf_Internal_Rela *dst);
71 static bfd_boolean nds32_elf_add_symbol_hook
72 (bfd *, struct bfd_link_info *, Elf_Internal_Sym *, const char **,
73 flagword *, asection **, bfd_vma *);
74 static bfd_boolean nds32_elf_relocate_section
75 (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
76 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
77 static bfd_boolean nds32_elf_object_p (bfd *);
78 static void nds32_elf_final_write_processing (bfd *, bfd_boolean);
79 static bfd_boolean nds32_elf_set_private_flags (bfd *, flagword);
80 static bfd_boolean nds32_elf_merge_private_bfd_data (bfd *, bfd *);
81 static bfd_boolean nds32_elf_print_private_bfd_data (bfd *, void *);
82 static bfd_boolean nds32_elf_gc_sweep_hook
83 (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
84 static bfd_boolean nds32_elf_check_relocs
85 (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
86 static asection *nds32_elf_gc_mark_hook
87 (asection *, struct bfd_link_info *, Elf_Internal_Rela *,
88 struct elf_link_hash_entry *, Elf_Internal_Sym *);
89 static bfd_boolean nds32_elf_adjust_dynamic_symbol
90 (struct bfd_link_info *, struct elf_link_hash_entry *);
91 static bfd_boolean nds32_elf_size_dynamic_sections
92 (bfd *, struct bfd_link_info *);
93 static bfd_boolean nds32_elf_create_dynamic_sections
94 (bfd *, struct bfd_link_info *);
95 static bfd_boolean nds32_elf_finish_dynamic_sections
96 (bfd *, struct bfd_link_info *info);
97 static bfd_boolean nds32_elf_finish_dynamic_symbol
98 (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
100 static bfd_boolean nds32_elf_mkobject (bfd *);
102 /* Nds32 helper functions. */
103 static bfd_reloc_status_type nds32_elf_final_sda_base
104 (bfd *, struct bfd_link_info *, bfd_vma *, bfd_boolean);
105 static bfd_boolean allocate_dynrelocs (struct elf_link_hash_entry *, void *);
106 static bfd_boolean readonly_dynrelocs (struct elf_link_hash_entry *, void *);
107 static Elf_Internal_Rela *find_relocs_at_address
108 (Elf_Internal_Rela *, Elf_Internal_Rela *,
109 Elf_Internal_Rela *, enum elf_nds32_reloc_type);
110 static bfd_vma calculate_memory_address
111 (bfd *, Elf_Internal_Rela *, Elf_Internal_Sym *, Elf_Internal_Shdr *);
112 static int nds32_get_section_contents (bfd *, asection *,
113 bfd_byte **, bfd_boolean);
114 static bfd_boolean nds32_elf_ex9_build_hash_table
115 (bfd *, asection *, struct bfd_link_info *);
116 static bfd_boolean nds32_elf_ex9_itb_base (struct bfd_link_info *);
117 static void nds32_elf_ex9_import_table (struct bfd_link_info *);
118 static void nds32_elf_ex9_finish (struct bfd_link_info *);
119 static void nds32_elf_ex9_reloc_jmp (struct bfd_link_info *);
120 static void nds32_elf_get_insn_with_reg
121 (Elf_Internal_Rela *, uint32_t, uint32_t *);
122 static int nds32_get_local_syms (bfd *, asection *ATTRIBUTE_UNUSED,
123 Elf_Internal_Sym **);
124 static bfd_boolean nds32_elf_ex9_replace_instruction
125 (struct bfd_link_info *, bfd *, asection *);
126 static bfd_boolean nds32_elf_ifc_calc (struct bfd_link_info *, bfd *,
128 static bfd_boolean nds32_elf_ifc_finish (struct bfd_link_info *);
129 static bfd_boolean nds32_elf_ifc_replace (struct bfd_link_info *);
130 static bfd_boolean nds32_elf_ifc_reloc (void);
131 static bfd_boolean nds32_relax_fp_as_gp
132 (struct bfd_link_info *link_info, bfd *abfd, asection *sec,
133 Elf_Internal_Rela *internal_relocs, Elf_Internal_Rela *irelend,
134 Elf_Internal_Sym *isymbuf);
135 static bfd_boolean nds32_fag_remove_unused_fpbase
136 (bfd *abfd, asection *sec, Elf_Internal_Rela *internal_relocs,
137 Elf_Internal_Rela *irelend);
139 nds32_elf_get_relocated_section_contents (bfd *abfd,
140 struct bfd_link_info *link_info,
141 struct bfd_link_order *link_order,
143 bfd_boolean relocatable,
148 MACH_V1 = bfd_mach_n1h,
149 MACH_V2 = bfd_mach_n1h_v2,
150 MACH_V3 = bfd_mach_n1h_v3,
151 MACH_V3M = bfd_mach_n1h_v3m
154 #define MIN(a, b) ((a) > (b) ? (b) : (a))
155 #define MAX(a, b) ((a) > (b) ? (a) : (b))
157 /* The name of the dynamic interpreter. This is put in the .interp
159 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
161 /* The nop opcode we use. */
162 #define NDS32_NOP32 0x40000009
163 #define NDS32_NOP16 0x9200
165 /* The size in bytes of an entry in the procedure linkage table. */
166 #define PLT_ENTRY_SIZE 24
167 #define PLT_HEADER_SIZE 24
169 /* The first entry in a procedure linkage table are reserved,
170 and the initial contents are unimportant (we zero them out).
171 Subsequent entries look like this. */
172 #define PLT0_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(.got+4) */
173 #define PLT0_ENTRY_WORD1 0x58f78000 /* ori r15, r25, LO12(.got+4) */
174 #define PLT0_ENTRY_WORD2 0x05178000 /* lwi r17, [r15+0] */
175 #define PLT0_ENTRY_WORD3 0x04f78001 /* lwi r15, [r15+4] */
176 #define PLT0_ENTRY_WORD4 0x4a003c00 /* jr r15 */
178 /* $ta is change to $r15 (from $r25). */
179 #define PLT0_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[1]@GOT) */
180 #define PLT0_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[1]@GOT) */
181 #define PLT0_PIC_ENTRY_WORD2 0x40f7f400 /* add r15, gp, r15 */
182 #define PLT0_PIC_ENTRY_WORD3 0x05178000 /* lwi r17, [r15+0] */
183 #define PLT0_PIC_ENTRY_WORD4 0x04f78001 /* lwi r15, [r15+4] */
184 #define PLT0_PIC_ENTRY_WORD5 0x4a003c00 /* jr r15 */
186 #define PLT_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(&got[n+3]) */
187 #define PLT_ENTRY_WORD1 0x04f78000 /* lwi r15, r15, LO12(&got[n+3]) */
188 #define PLT_ENTRY_WORD2 0x4a003c00 /* jr r15 */
189 #define PLT_ENTRY_WORD3 0x45000000 /* movi r16, sizeof(RELA) * n */
190 #define PLT_ENTRY_WORD4 0x48000000 /* j .plt0. */
192 #define PLT_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[n+3]@GOT) */
193 #define PLT_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[n+3]@GOT) */
194 #define PLT_PIC_ENTRY_WORD2 0x38febc02 /* lw r15, [gp+r15] */
195 #define PLT_PIC_ENTRY_WORD3 0x4a003c00 /* jr r15 */
196 #define PLT_PIC_ENTRY_WORD4 0x45000000 /* movi r16, sizeof(RELA) * n */
197 #define PLT_PIC_ENTRY_WORD5 0x48000000 /* j .plt0 */
199 /* These are macros used to get the relocation accurate value. */
200 #define ACCURATE_8BIT_S1 (0x100)
201 #define ACCURATE_U9BIT_S1 (0x400)
202 #define ACCURATE_12BIT_S1 (0x2000)
203 #define ACCURATE_14BIT_S1 (0x4000)
204 #define ACCURATE_19BIT (0x40000)
206 /* These are macros used to get the relocation conservative value. */
207 #define CONSERVATIVE_8BIT_S1 (0x100 - 4)
208 #define CONSERVATIVE_14BIT_S1 (0x4000 - 4)
209 #define CONSERVATIVE_16BIT_S1 (0x10000 - 4)
210 #define CONSERVATIVE_24BIT_S1 (0x1000000 - 4)
211 /* These must be more conservative because the address may be in
212 different segment. */
213 #define CONSERVATIVE_15BIT (0x4000 - 0x1000)
214 #define CONSERVATIVE_15BIT_S1 (0x8000 - 0x1000)
215 #define CONSERVATIVE_15BIT_S2 (0x10000 - 0x1000)
216 #define CONSERVATIVE_19BIT (0x40000 - 0x1000)
217 #define CONSERVATIVE_20BIT (0x80000 - 0x1000)
219 /* Size of small data/bss sections, used to calculate SDA_BASE. */
220 static long got_size = 0;
221 static int is_SDA_BASE_set = 0;
222 static int is_ITB_BASE_set = 0;
224 /* Convert ELF-VER in eflags to string for debugging purpose. */
225 static const char *const nds32_elfver_strtab[] =
232 /* The nds32 linker needs to keep track of the number of relocs that it
233 decides to copy in check_relocs for each symbol. This is so that
234 it can discard PC relative relocs if it doesn't need them when
235 linking with -Bsymbolic. We store the information in a field
236 extending the regular ELF linker hash table. */
238 /* This structure keeps track of the number of PC relative relocs we
239 have copied for a given symbol. */
241 struct elf_nds32_pcrel_relocs_copied
244 struct elf_nds32_pcrel_relocs_copied *next;
245 /* A section in dynobj. */
247 /* Number of relocs copied in this section. */
251 /* The sh linker needs to keep track of the number of relocs that it
252 decides to copy as dynamic relocs in check_relocs for each symbol.
253 This is so that it can later discard them if they are found to be
254 unnecessary. We store the information in a field extending the
255 regular ELF linker hash table. */
257 struct elf_nds32_dyn_relocs
259 struct elf_nds32_dyn_relocs *next;
261 /* The input section of the reloc. */
264 /* Total number of relocs copied for the input section. */
267 /* Number of pc-relative relocs copied for the input section. */
268 bfd_size_type pc_count;
271 /* Nds32 ELF linker hash entry. */
273 struct elf_nds32_link_hash_entry
275 struct elf_link_hash_entry root;
277 /* Track dynamic relocs copied for this symbol. */
278 struct elf_nds32_dyn_relocs *dyn_relocs;
280 /* For checking relocation type. */
281 #define GOT_UNKNOWN 0
284 unsigned int tls_type;
287 /* Get the nds32 ELF linker hash table from a link_info structure. */
289 #define FP_BASE_NAME "_FP_BASE_"
290 static int check_start_export_sym = 0;
291 static size_t ex9_relax_size = 0; /* Save ex9 predicted reducing size. */
293 /* The offset for executable tls relaxation. */
294 #define TP_OFFSET 0x0
296 struct elf_nds32_obj_tdata
298 struct elf_obj_tdata root;
300 /* tls_type for each local got entry. */
301 char *local_got_tls_type;
304 #define elf_nds32_tdata(bfd) \
305 ((struct elf_nds32_obj_tdata *) (bfd)->tdata.any)
307 #define elf32_nds32_local_got_tls_type(bfd) \
308 (elf_nds32_tdata (bfd)->local_got_tls_type)
310 #define elf32_nds32_hash_entry(ent) ((struct elf_nds32_link_hash_entry *)(ent))
313 nds32_elf_mkobject (bfd *abfd)
315 return bfd_elf_allocate_object (abfd, sizeof (struct elf_nds32_obj_tdata),
319 /* Relocations used for relocation. */
320 static reloc_howto_type nds32_elf_howto_table[] =
322 /* This reloc does nothing. */
323 HOWTO (R_NDS32_NONE, /* type */
325 3, /* size (0 = byte, 1 = short, 2 = long) */
327 FALSE, /* pc_relative */
329 complain_overflow_dont, /* complain_on_overflow */
330 bfd_elf_generic_reloc, /* special_function */
331 "R_NDS32_NONE", /* name */
332 FALSE, /* partial_inplace */
335 FALSE), /* pcrel_offset */
337 /* A 16 bit absolute relocation. */
338 HOWTO (R_NDS32_16, /* type */
340 1, /* size (0 = byte, 1 = short, 2 = long) */
342 FALSE, /* pc_relative */
344 complain_overflow_bitfield, /* complain_on_overflow */
345 nds32_elf_generic_reloc, /* special_function */
346 "R_NDS32_16", /* name */
347 FALSE, /* partial_inplace */
348 0xffff, /* src_mask */
349 0xffff, /* dst_mask */
350 FALSE), /* pcrel_offset */
352 /* A 32 bit absolute relocation. */
353 HOWTO (R_NDS32_32, /* type */
355 2, /* size (0 = byte, 1 = short, 2 = long) */
357 FALSE, /* pc_relative */
359 complain_overflow_bitfield, /* complain_on_overflow */
360 nds32_elf_generic_reloc, /* special_function */
361 "R_NDS32_32", /* name */
362 FALSE, /* partial_inplace */
363 0xffffffff, /* src_mask */
364 0xffffffff, /* dst_mask */
365 FALSE), /* pcrel_offset */
367 /* A 20 bit address. */
368 HOWTO (R_NDS32_20, /* type */
370 2, /* size (0 = byte, 1 = short, 2 = long) */
372 FALSE, /* pc_relative */
374 complain_overflow_unsigned, /* complain_on_overflow */
375 nds32_elf_generic_reloc, /* special_function */
376 "R_NDS32_20", /* name */
377 FALSE, /* partial_inplace */
378 0xfffff, /* src_mask */
379 0xfffff, /* dst_mask */
380 FALSE), /* pcrel_offset */
382 /* An PC Relative 9-bit relocation, shifted by 2.
383 This reloc is complicated because relocations are relative to pc & -4.
384 i.e. branches in the right insn slot use the address of the left insn
386 /* ??? It's not clear whether this should have partial_inplace set or not.
387 Branch relaxing in the assembler can store the addend in the insn,
388 and if bfd_install_relocation gets called the addend may get added
390 HOWTO (R_NDS32_9_PCREL, /* type */
392 1, /* size (0 = byte, 1 = short, 2 = long) */
394 TRUE, /* pc_relative */
396 complain_overflow_signed, /* complain_on_overflow */
397 nds32_elf_9_pcrel_reloc, /* special_function */
398 "R_NDS32_9_PCREL", /* name */
399 FALSE, /* partial_inplace */
402 TRUE), /* pcrel_offset */
404 /* A relative 15 bit relocation, right shifted by 1. */
405 HOWTO (R_NDS32_15_PCREL, /* type */
407 2, /* size (0 = byte, 1 = short, 2 = long) */
409 TRUE, /* pc_relative */
411 complain_overflow_signed, /* complain_on_overflow */
412 bfd_elf_generic_reloc, /* special_function */
413 "R_NDS32_15_PCREL", /* name */
414 FALSE, /* partial_inplace */
415 0x3fff, /* src_mask */
416 0x3fff, /* dst_mask */
417 TRUE), /* pcrel_offset */
419 /* A relative 17 bit relocation, right shifted by 1. */
420 HOWTO (R_NDS32_17_PCREL, /* type */
422 2, /* size (0 = byte, 1 = short, 2 = long) */
424 TRUE, /* pc_relative */
426 complain_overflow_signed, /* complain_on_overflow */
427 bfd_elf_generic_reloc, /* special_function */
428 "R_NDS32_17_PCREL", /* name */
429 FALSE, /* partial_inplace */
430 0xffff, /* src_mask */
431 0xffff, /* dst_mask */
432 TRUE), /* pcrel_offset */
434 /* A relative 25 bit relocation, right shifted by 1. */
435 /* ??? It's not clear whether this should have partial_inplace set or not.
436 Branch relaxing in the assembler can store the addend in the insn,
437 and if bfd_install_relocation gets called the addend may get added
439 HOWTO (R_NDS32_25_PCREL, /* type */
441 2, /* size (0 = byte, 1 = short, 2 = long) */
443 TRUE, /* pc_relative */
445 complain_overflow_signed, /* complain_on_overflow */
446 bfd_elf_generic_reloc, /* special_function */
447 "R_NDS32_25_PCREL", /* name */
448 FALSE, /* partial_inplace */
449 0xffffff, /* src_mask */
450 0xffffff, /* dst_mask */
451 TRUE), /* pcrel_offset */
453 /* High 20 bits of address when lower 12 is or'd in. */
454 HOWTO (R_NDS32_HI20, /* type */
456 2, /* size (0 = byte, 1 = short, 2 = long) */
458 FALSE, /* pc_relative */
460 complain_overflow_dont,/* complain_on_overflow */
461 nds32_elf_hi20_reloc, /* special_function */
462 "R_NDS32_HI20", /* name */
463 FALSE, /* partial_inplace */
464 0x000fffff, /* src_mask */
465 0x000fffff, /* dst_mask */
466 FALSE), /* pcrel_offset */
468 /* Lower 12 bits of address. */
469 HOWTO (R_NDS32_LO12S3, /* type */
471 2, /* size (0 = byte, 1 = short, 2 = long) */
473 FALSE, /* pc_relative */
475 complain_overflow_dont,/* complain_on_overflow */
476 nds32_elf_lo12_reloc, /* special_function */
477 "R_NDS32_LO12S3", /* name */
478 FALSE, /* partial_inplace */
479 0x000001ff, /* src_mask */
480 0x000001ff, /* dst_mask */
481 FALSE), /* pcrel_offset */
483 /* Lower 12 bits of address. */
484 HOWTO (R_NDS32_LO12S2, /* type */
486 2, /* size (0 = byte, 1 = short, 2 = long) */
488 FALSE, /* pc_relative */
490 complain_overflow_dont,/* complain_on_overflow */
491 nds32_elf_lo12_reloc, /* special_function */
492 "R_NDS32_LO12S2", /* name */
493 FALSE, /* partial_inplace */
494 0x000003ff, /* src_mask */
495 0x000003ff, /* dst_mask */
496 FALSE), /* pcrel_offset */
498 /* Lower 12 bits of address. */
499 HOWTO (R_NDS32_LO12S1, /* type */
501 2, /* size (0 = byte, 1 = short, 2 = long) */
503 FALSE, /* pc_relative */
505 complain_overflow_dont,/* complain_on_overflow */
506 nds32_elf_lo12_reloc, /* special_function */
507 "R_NDS32_LO12S1", /* name */
508 FALSE, /* partial_inplace */
509 0x000007ff, /* src_mask */
510 0x000007ff, /* dst_mask */
511 FALSE), /* pcrel_offset */
513 /* Lower 12 bits of address. */
514 HOWTO (R_NDS32_LO12S0, /* type */
516 2, /* size (0 = byte, 1 = short, 2 = long) */
518 FALSE, /* pc_relative */
520 complain_overflow_dont,/* complain_on_overflow */
521 nds32_elf_lo12_reloc, /* special_function */
522 "R_NDS32_LO12S0", /* name */
523 FALSE, /* partial_inplace */
524 0x00000fff, /* src_mask */
525 0x00000fff, /* dst_mask */
526 FALSE), /* pcrel_offset */
528 /* Small data area 15 bits offset. */
529 HOWTO (R_NDS32_SDA15S3, /* type */
531 2, /* size (0 = byte, 1 = short, 2 = long) */
533 FALSE, /* pc_relative */
535 complain_overflow_signed, /* complain_on_overflow */
536 nds32_elf_sda15_reloc, /* special_function */
537 "R_NDS32_SDA15S3", /* name */
538 FALSE, /* partial_inplace */
539 0x00007fff, /* src_mask */
540 0x00007fff, /* dst_mask */
541 FALSE), /* pcrel_offset */
543 /* Small data area 15 bits offset. */
544 HOWTO (R_NDS32_SDA15S2, /* type */
546 2, /* size (0 = byte, 1 = short, 2 = long) */
548 FALSE, /* pc_relative */
550 complain_overflow_signed, /* complain_on_overflow */
551 nds32_elf_sda15_reloc, /* special_function */
552 "R_NDS32_SDA15S2", /* name */
553 FALSE, /* partial_inplace */
554 0x00007fff, /* src_mask */
555 0x00007fff, /* dst_mask */
556 FALSE), /* pcrel_offset */
558 /* Small data area 15 bits offset. */
559 HOWTO (R_NDS32_SDA15S1, /* type */
561 2, /* size (0 = byte, 1 = short, 2 = long) */
563 FALSE, /* pc_relative */
565 complain_overflow_signed, /* complain_on_overflow */
566 nds32_elf_sda15_reloc, /* special_function */
567 "R_NDS32_SDA15S1", /* name */
568 FALSE, /* partial_inplace */
569 0x00007fff, /* src_mask */
570 0x00007fff, /* dst_mask */
571 FALSE), /* pcrel_offset */
573 /* Small data area 15 bits offset. */
574 HOWTO (R_NDS32_SDA15S0, /* type */
576 2, /* size (0 = byte, 1 = short, 2 = long) */
578 FALSE, /* pc_relative */
580 complain_overflow_signed, /* complain_on_overflow */
581 nds32_elf_sda15_reloc, /* special_function */
582 "R_NDS32_SDA15S0", /* name */
583 FALSE, /* partial_inplace */
584 0x00007fff, /* src_mask */
585 0x00007fff, /* dst_mask */
586 FALSE), /* pcrel_offset */
588 /* GNU extension to record C++ vtable hierarchy */
589 HOWTO (R_NDS32_GNU_VTINHERIT, /* type */
591 2, /* size (0 = byte, 1 = short, 2 = long) */
593 FALSE, /* pc_relative */
595 complain_overflow_dont,/* complain_on_overflow */
596 NULL, /* special_function */
597 "R_NDS32_GNU_VTINHERIT", /* name */
598 FALSE, /* partial_inplace */
601 FALSE), /* pcrel_offset */
603 /* GNU extension to record C++ vtable member usage */
604 HOWTO (R_NDS32_GNU_VTENTRY, /* type */
606 2, /* size (0 = byte, 1 = short, 2 = long) */
608 FALSE, /* pc_relative */
610 complain_overflow_dont,/* complain_on_overflow */
611 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
612 "R_NDS32_GNU_VTENTRY", /* name */
613 FALSE, /* partial_inplace */
616 FALSE), /* pcrel_offset */
618 /* A 16 bit absolute relocation. */
619 HOWTO (R_NDS32_16_RELA, /* type */
621 1, /* size (0 = byte, 1 = short, 2 = long) */
623 FALSE, /* pc_relative */
625 complain_overflow_bitfield, /* complain_on_overflow */
626 bfd_elf_generic_reloc, /* special_function */
627 "R_NDS32_16_RELA", /* name */
628 FALSE, /* partial_inplace */
629 0xffff, /* src_mask */
630 0xffff, /* dst_mask */
631 FALSE), /* pcrel_offset */
633 /* A 32 bit absolute relocation. */
634 HOWTO (R_NDS32_32_RELA, /* type */
636 2, /* size (0 = byte, 1 = short, 2 = long) */
638 FALSE, /* pc_relative */
640 complain_overflow_bitfield, /* complain_on_overflow */
641 bfd_elf_generic_reloc, /* special_function */
642 "R_NDS32_32_RELA", /* name */
643 FALSE, /* partial_inplace */
644 0xffffffff, /* src_mask */
645 0xffffffff, /* dst_mask */
646 FALSE), /* pcrel_offset */
648 /* A 20 bit address. */
649 HOWTO (R_NDS32_20_RELA, /* type */
651 2, /* size (0 = byte, 1 = short, 2 = long) */
653 FALSE, /* pc_relative */
655 complain_overflow_signed, /* complain_on_overflow */
656 bfd_elf_generic_reloc, /* special_function */
657 "R_NDS32_20_RELA", /* name */
658 FALSE, /* partial_inplace */
659 0xfffff, /* src_mask */
660 0xfffff, /* dst_mask */
661 FALSE), /* pcrel_offset */
663 HOWTO (R_NDS32_9_PCREL_RELA, /* type */
665 1, /* size (0 = byte, 1 = short, 2 = long) */
667 TRUE, /* pc_relative */
669 complain_overflow_signed, /* complain_on_overflow */
670 bfd_elf_generic_reloc, /* special_function */
671 "R_NDS32_9_PCREL_RELA",/* name */
672 FALSE, /* partial_inplace */
675 TRUE), /* pcrel_offset */
677 /* A relative 15 bit relocation, right shifted by 1. */
678 HOWTO (R_NDS32_15_PCREL_RELA, /* type */
680 2, /* size (0 = byte, 1 = short, 2 = long) */
682 TRUE, /* pc_relative */
684 complain_overflow_signed, /* complain_on_overflow */
685 bfd_elf_generic_reloc, /* special_function */
686 "R_NDS32_15_PCREL_RELA", /* name */
687 FALSE, /* partial_inplace */
688 0x3fff, /* src_mask */
689 0x3fff, /* dst_mask */
690 TRUE), /* pcrel_offset */
692 /* A relative 17 bit relocation, right shifted by 1. */
693 HOWTO (R_NDS32_17_PCREL_RELA, /* type */
695 2, /* size (0 = byte, 1 = short, 2 = long) */
697 TRUE, /* pc_relative */
699 complain_overflow_signed, /* complain_on_overflow */
700 bfd_elf_generic_reloc, /* special_function */
701 "R_NDS32_17_PCREL_RELA", /* name */
702 FALSE, /* partial_inplace */
703 0xffff, /* src_mask */
704 0xffff, /* dst_mask */
705 TRUE), /* pcrel_offset */
707 /* A relative 25 bit relocation, right shifted by 2. */
708 HOWTO (R_NDS32_25_PCREL_RELA, /* type */
710 2, /* size (0 = byte, 1 = short, 2 = long) */
712 TRUE, /* pc_relative */
714 complain_overflow_signed, /* complain_on_overflow */
715 bfd_elf_generic_reloc, /* special_function */
716 "R_NDS32_25_PCREL_RELA", /* name */
717 FALSE, /* partial_inplace */
718 0xffffff, /* src_mask */
719 0xffffff, /* dst_mask */
720 TRUE), /* pcrel_offset */
722 /* High 20 bits of address when lower 16 is or'd in. */
723 HOWTO (R_NDS32_HI20_RELA, /* type */
725 2, /* size (0 = byte, 1 = short, 2 = long) */
727 FALSE, /* pc_relative */
729 complain_overflow_dont,/* complain_on_overflow */
730 bfd_elf_generic_reloc, /* special_function */
731 "R_NDS32_HI20_RELA", /* name */
732 FALSE, /* partial_inplace */
733 0x000fffff, /* src_mask */
734 0x000fffff, /* dst_mask */
735 FALSE), /* pcrel_offset */
737 /* Lower 12 bits of address. */
738 HOWTO (R_NDS32_LO12S3_RELA, /* type */
740 2, /* size (0 = byte, 1 = short, 2 = long) */
742 FALSE, /* pc_relative */
744 complain_overflow_dont,/* complain_on_overflow */
745 bfd_elf_generic_reloc, /* special_function */
746 "R_NDS32_LO12S3_RELA", /* name */
747 FALSE, /* partial_inplace */
748 0x000001ff, /* src_mask */
749 0x000001ff, /* dst_mask */
750 FALSE), /* pcrel_offset */
752 /* Lower 12 bits of address. */
753 HOWTO (R_NDS32_LO12S2_RELA, /* type */
755 2, /* size (0 = byte, 1 = short, 2 = long) */
757 FALSE, /* pc_relative */
759 complain_overflow_dont,/* complain_on_overflow */
760 bfd_elf_generic_reloc, /* special_function */
761 "R_NDS32_LO12S2_RELA", /* name */
762 FALSE, /* partial_inplace */
763 0x000003ff, /* src_mask */
764 0x000003ff, /* dst_mask */
765 FALSE), /* pcrel_offset */
767 /* Lower 12 bits of address. */
768 HOWTO (R_NDS32_LO12S1_RELA, /* type */
770 2, /* size (0 = byte, 1 = short, 2 = long) */
772 FALSE, /* pc_relative */
774 complain_overflow_dont,/* complain_on_overflow */
775 bfd_elf_generic_reloc, /* special_function */
776 "R_NDS32_LO12S1_RELA", /* name */
777 FALSE, /* partial_inplace */
778 0x000007ff, /* src_mask */
779 0x000007ff, /* dst_mask */
780 FALSE), /* pcrel_offset */
782 /* Lower 12 bits of address. */
783 HOWTO (R_NDS32_LO12S0_RELA, /* type */
785 2, /* size (0 = byte, 1 = short, 2 = long) */
787 FALSE, /* pc_relative */
789 complain_overflow_dont,/* complain_on_overflow */
790 bfd_elf_generic_reloc, /* special_function */
791 "R_NDS32_LO12S0_RELA", /* name */
792 FALSE, /* partial_inplace */
793 0x00000fff, /* src_mask */
794 0x00000fff, /* dst_mask */
795 FALSE), /* pcrel_offset */
797 /* Small data area 15 bits offset. */
798 HOWTO (R_NDS32_SDA15S3_RELA, /* type */
800 2, /* size (0 = byte, 1 = short, 2 = long) */
802 FALSE, /* pc_relative */
804 complain_overflow_signed, /* complain_on_overflow */
805 bfd_elf_generic_reloc, /* special_function */
806 "R_NDS32_SDA15S3_RELA",/* name */
807 FALSE, /* partial_inplace */
808 0x00007fff, /* src_mask */
809 0x00007fff, /* dst_mask */
810 FALSE), /* pcrel_offset */
812 /* Small data area 15 bits offset. */
813 HOWTO (R_NDS32_SDA15S2_RELA, /* type */
815 2, /* size (0 = byte, 1 = short, 2 = long) */
817 FALSE, /* pc_relative */
819 complain_overflow_signed, /* complain_on_overflow */
820 bfd_elf_generic_reloc, /* special_function */
821 "R_NDS32_SDA15S2_RELA",/* name */
822 FALSE, /* partial_inplace */
823 0x00007fff, /* src_mask */
824 0x00007fff, /* dst_mask */
825 FALSE), /* pcrel_offset */
827 HOWTO (R_NDS32_SDA15S1_RELA, /* type */
829 2, /* size (0 = byte, 1 = short, 2 = long) */
831 FALSE, /* pc_relative */
833 complain_overflow_signed, /* complain_on_overflow */
834 bfd_elf_generic_reloc, /* special_function */
835 "R_NDS32_SDA15S1_RELA",/* name */
836 FALSE, /* partial_inplace */
837 0x00007fff, /* src_mask */
838 0x00007fff, /* dst_mask */
839 FALSE), /* pcrel_offset */
841 HOWTO (R_NDS32_SDA15S0_RELA, /* type */
843 2, /* size (0 = byte, 1 = short, 2 = long) */
845 FALSE, /* pc_relative */
847 complain_overflow_signed, /* complain_on_overflow */
848 bfd_elf_generic_reloc, /* special_function */
849 "R_NDS32_SDA15S0_RELA",/* name */
850 FALSE, /* partial_inplace */
851 0x00007fff, /* src_mask */
852 0x00007fff, /* dst_mask */
853 FALSE), /* pcrel_offset */
855 /* GNU extension to record C++ vtable hierarchy */
856 HOWTO (R_NDS32_RELA_GNU_VTINHERIT, /* type */
858 2, /* size (0 = byte, 1 = short, 2 = long) */
860 FALSE, /* pc_relative */
862 complain_overflow_dont,/* complain_on_overflow */
863 NULL, /* special_function */
864 "R_NDS32_RELA_GNU_VTINHERIT", /* name */
865 FALSE, /* partial_inplace */
868 FALSE), /* pcrel_offset */
870 /* GNU extension to record C++ vtable member usage */
871 HOWTO (R_NDS32_RELA_GNU_VTENTRY, /* type */
873 2, /* size (0 = byte, 1 = short, 2 = long) */
875 FALSE, /* pc_relative */
877 complain_overflow_dont,/* complain_on_overflow */
878 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
879 "R_NDS32_RELA_GNU_VTENTRY", /* name */
880 FALSE, /* partial_inplace */
883 FALSE), /* pcrel_offset */
885 /* Like R_NDS32_20, but referring to the GOT table entry for
887 HOWTO (R_NDS32_GOT20, /* type */
889 2, /* size (0 = byte, 1 = short, 2 = long) */
891 FALSE, /* pc_relative */
893 complain_overflow_signed, /* complain_on_overflow */
894 bfd_elf_generic_reloc, /* special_function */
895 "R_NDS32_GOT20", /* name */
896 FALSE, /* partial_inplace */
897 0xfffff, /* src_mask */
898 0xfffff, /* dst_mask */
899 FALSE), /* pcrel_offset */
901 /* Like R_NDS32_PCREL, but referring to the procedure linkage table
902 entry for the symbol. */
903 HOWTO (R_NDS32_25_PLTREL, /* type */
905 2, /* size (0 = byte, 1 = short, 2 = long) */
907 TRUE, /* pc_relative */
909 complain_overflow_signed, /* complain_on_overflow */
910 bfd_elf_generic_reloc, /* special_function */
911 "R_NDS32_25_PLTREL", /* name */
912 FALSE, /* partial_inplace */
913 0xffffff, /* src_mask */
914 0xffffff, /* dst_mask */
915 TRUE), /* pcrel_offset */
917 /* This is used only by the dynamic linker. The symbol should exist
918 both in the object being run and in some shared library. The
919 dynamic linker copies the data addressed by the symbol from the
920 shared library into the object, because the object being
921 run has to have the data at some particular address. */
922 HOWTO (R_NDS32_COPY, /* type */
924 2, /* size (0 = byte, 1 = short, 2 = long) */
926 FALSE, /* pc_relative */
928 complain_overflow_bitfield, /* complain_on_overflow */
929 bfd_elf_generic_reloc, /* special_function */
930 "R_NDS32_COPY", /* name */
931 FALSE, /* partial_inplace */
932 0xffffffff, /* src_mask */
933 0xffffffff, /* dst_mask */
934 FALSE), /* pcrel_offset */
936 /* Like R_NDS32_20, but used when setting global offset table
938 HOWTO (R_NDS32_GLOB_DAT, /* type */
940 2, /* size (0 = byte, 1 = short, 2 = long) */
942 FALSE, /* pc_relative */
944 complain_overflow_bitfield, /* complain_on_overflow */
945 bfd_elf_generic_reloc, /* special_function */
946 "R_NDS32_GLOB_DAT", /* name */
947 FALSE, /* partial_inplace */
948 0xffffffff, /* src_mask */
949 0xffffffff, /* dst_mask */
950 FALSE), /* pcrel_offset */
952 /* Marks a procedure linkage table entry for a symbol. */
953 HOWTO (R_NDS32_JMP_SLOT, /* type */
955 2, /* size (0 = byte, 1 = short, 2 = long) */
957 FALSE, /* pc_relative */
959 complain_overflow_bitfield, /* complain_on_overflow */
960 bfd_elf_generic_reloc, /* special_function */
961 "R_NDS32_JMP_SLOT", /* name */
962 FALSE, /* partial_inplace */
963 0xffffffff, /* src_mask */
964 0xffffffff, /* dst_mask */
965 FALSE), /* pcrel_offset */
967 /* Used only by the dynamic linker. When the object is run, this
968 longword is set to the load address of the object, plus the
970 HOWTO (R_NDS32_RELATIVE, /* type */
972 2, /* size (0 = byte, 1 = short, 2 = long) */
974 FALSE, /* pc_relative */
976 complain_overflow_bitfield, /* complain_on_overflow */
977 bfd_elf_generic_reloc, /* special_function */
978 "R_NDS32_RELATIVE", /* name */
979 FALSE, /* partial_inplace */
980 0xffffffff, /* src_mask */
981 0xffffffff, /* dst_mask */
982 FALSE), /* pcrel_offset */
984 HOWTO (R_NDS32_GOTOFF, /* type */
986 2, /* size (0 = byte, 1 = short, 2 = long) */
988 FALSE, /* pc_relative */
990 complain_overflow_signed, /* complain_on_overflow */
991 bfd_elf_generic_reloc, /* special_function */
992 "R_NDS32_GOTOFF", /* name */
993 FALSE, /* partial_inplace */
994 0xfffff, /* src_mask */
995 0xfffff, /* dst_mask */
996 FALSE), /* pcrel_offset */
998 /* An PC Relative 20-bit relocation used when setting PIC offset
1000 HOWTO (R_NDS32_GOTPC20, /* type */
1002 2, /* size (0 = byte, 1 = short, 2 = long) */
1004 TRUE, /* pc_relative */
1006 complain_overflow_signed, /* complain_on_overflow */
1007 bfd_elf_generic_reloc, /* special_function */
1008 "R_NDS32_GOTPC20", /* name */
1009 FALSE, /* partial_inplace */
1010 0xfffff, /* src_mask */
1011 0xfffff, /* dst_mask */
1012 TRUE), /* pcrel_offset */
1014 /* Like R_NDS32_HI20, but referring to the GOT table entry for
1016 HOWTO (R_NDS32_GOT_HI20, /* type */
1017 12, /* rightshift */
1018 2, /* size (0 = byte, 1 = short, 2 = long) */
1020 FALSE, /* pc_relative */
1022 complain_overflow_dont,/* complain_on_overflow */
1023 bfd_elf_generic_reloc, /* special_function */
1024 "R_NDS32_GOT_HI20", /* name */
1025 FALSE, /* partial_inplace */
1026 0x000fffff, /* src_mask */
1027 0x000fffff, /* dst_mask */
1028 FALSE), /* pcrel_offset */
1029 HOWTO (R_NDS32_GOT_LO12, /* type */
1031 2, /* size (0 = byte, 1 = short, 2 = long) */
1033 FALSE, /* pc_relative */
1035 complain_overflow_dont,/* complain_on_overflow */
1036 bfd_elf_generic_reloc, /* special_function */
1037 "R_NDS32_GOT_LO12", /* name */
1038 FALSE, /* partial_inplace */
1039 0x00000fff, /* src_mask */
1040 0x00000fff, /* dst_mask */
1041 FALSE), /* pcrel_offset */
1043 /* An PC Relative relocation used when setting PIC offset table register.
1044 Like R_NDS32_HI20, but referring to the GOT table entry for
1046 HOWTO (R_NDS32_GOTPC_HI20, /* type */
1047 12, /* rightshift */
1048 2, /* size (0 = byte, 1 = short, 2 = long) */
1050 FALSE, /* pc_relative */
1052 complain_overflow_dont,/* complain_on_overflow */
1053 bfd_elf_generic_reloc, /* special_function */
1054 "R_NDS32_GOTPC_HI20", /* name */
1055 FALSE, /* partial_inplace */
1056 0x000fffff, /* src_mask */
1057 0x000fffff, /* dst_mask */
1058 TRUE), /* pcrel_offset */
1059 HOWTO (R_NDS32_GOTPC_LO12, /* type */
1061 2, /* size (0 = byte, 1 = short, 2 = long) */
1063 FALSE, /* pc_relative */
1065 complain_overflow_dont, /* complain_on_overflow */
1066 bfd_elf_generic_reloc, /* special_function */
1067 "R_NDS32_GOTPC_LO12", /* name */
1068 FALSE, /* partial_inplace */
1069 0x00000fff, /* src_mask */
1070 0x00000fff, /* dst_mask */
1071 TRUE), /* pcrel_offset */
1073 HOWTO (R_NDS32_GOTOFF_HI20, /* type */
1074 12, /* rightshift */
1075 2, /* size (0 = byte, 1 = short, 2 = long) */
1077 FALSE, /* pc_relative */
1079 complain_overflow_dont,/* complain_on_overflow */
1080 bfd_elf_generic_reloc, /* special_function */
1081 "R_NDS32_GOTOFF_HI20", /* name */
1082 FALSE, /* partial_inplace */
1083 0x000fffff, /* src_mask */
1084 0x000fffff, /* dst_mask */
1085 FALSE), /* pcrel_offset */
1086 HOWTO (R_NDS32_GOTOFF_LO12, /* type */
1088 2, /* size (0 = byte, 1 = short, 2 = long) */
1090 FALSE, /* pc_relative */
1092 complain_overflow_dont,/* complain_on_overflow */
1093 bfd_elf_generic_reloc, /* special_function */
1094 "R_NDS32_GOTOFF_LO12", /* name */
1095 FALSE, /* partial_inplace */
1096 0x00000fff, /* src_mask */
1097 0x00000fff, /* dst_mask */
1098 FALSE), /* pcrel_offset */
1100 /* Alignment hint for relaxable instruction. This is used with
1101 R_NDS32_LABEL as a pair. Relax this instruction from 4 bytes to 2
1102 in order to make next label aligned on word boundary. */
1103 HOWTO (R_NDS32_INSN16, /* type */
1105 2, /* size (0 = byte, 1 = short, 2 = long) */
1107 FALSE, /* pc_relative */
1109 complain_overflow_dont,/* complain_on_overflow */
1110 nds32_elf_ignore_reloc,/* special_function */
1111 "R_NDS32_INSN16", /* name */
1112 FALSE, /* partial_inplace */
1113 0x00000fff, /* src_mask */
1114 0x00000fff, /* dst_mask */
1115 FALSE), /* pcrel_offset */
1117 /* Alignment hint for label. */
1118 HOWTO (R_NDS32_LABEL, /* type */
1120 2, /* size (0 = byte, 1 = short, 2 = long) */
1122 FALSE, /* pc_relative */
1124 complain_overflow_dont,/* complain_on_overflow */
1125 nds32_elf_ignore_reloc,/* special_function */
1126 "R_NDS32_LABEL", /* name */
1127 FALSE, /* partial_inplace */
1128 0xffffffff, /* src_mask */
1129 0xffffffff, /* dst_mask */
1130 FALSE), /* pcrel_offset */
1132 /* Relax hint for unconditional call sequence */
1133 HOWTO (R_NDS32_LONGCALL1, /* type */
1135 2, /* size (0 = byte, 1 = short, 2 = long) */
1137 FALSE, /* pc_relative */
1139 complain_overflow_dont,/* complain_on_overflow */
1140 nds32_elf_ignore_reloc,/* special_function */
1141 "R_NDS32_LONGCALL1", /* name */
1142 FALSE, /* partial_inplace */
1143 0xffffffff, /* src_mask */
1144 0xffffffff, /* dst_mask */
1145 FALSE), /* pcrel_offset */
1147 /* Relax hint for conditional call sequence. */
1148 HOWTO (R_NDS32_LONGCALL2, /* type */
1150 2, /* size (0 = byte, 1 = short, 2 = long) */
1152 FALSE, /* pc_relative */
1154 complain_overflow_dont,/* complain_on_overflow */
1155 nds32_elf_ignore_reloc,/* special_function */
1156 "R_NDS32_LONGCALL2", /* name */
1157 FALSE, /* partial_inplace */
1158 0xffffffff, /* src_mask */
1159 0xffffffff, /* dst_mask */
1160 FALSE), /* pcrel_offset */
1162 /* Relax hint for conditional call sequence. */
1163 HOWTO (R_NDS32_LONGCALL3, /* type */
1165 2, /* size (0 = byte, 1 = short, 2 = long) */
1167 FALSE, /* pc_relative */
1169 complain_overflow_dont,/* complain_on_overflow */
1170 nds32_elf_ignore_reloc,/* special_function */
1171 "R_NDS32_LONGCALL3", /* name */
1172 FALSE, /* partial_inplace */
1173 0xffffffff, /* src_mask */
1174 0xffffffff, /* dst_mask */
1175 FALSE), /* pcrel_offset */
1177 /* Relax hint for unconditional branch sequence. */
1178 HOWTO (R_NDS32_LONGJUMP1, /* type */
1180 2, /* size (0 = byte, 1 = short, 2 = long) */
1182 FALSE, /* pc_relative */
1184 complain_overflow_dont,/* complain_on_overflow */
1185 nds32_elf_ignore_reloc,/* special_function */
1186 "R_NDS32_LONGJUMP1", /* name */
1187 FALSE, /* partial_inplace */
1188 0xffffffff, /* src_mask */
1189 0xffffffff, /* dst_mask */
1190 FALSE), /* pcrel_offset */
1192 /* Relax hint for conditional branch sequence. */
1193 HOWTO (R_NDS32_LONGJUMP2, /* type */
1195 2, /* size (0 = byte, 1 = short, 2 = long) */
1197 FALSE, /* pc_relative */
1199 complain_overflow_dont,/* complain_on_overflow */
1200 nds32_elf_ignore_reloc,/* special_function */
1201 "R_NDS32_LONGJUMP2", /* name */
1202 FALSE, /* partial_inplace */
1203 0xffffffff, /* src_mask */
1204 0xffffffff, /* dst_mask */
1205 FALSE), /* pcrel_offset */
1207 /* Relax hint for conditional branch sequence. */
1208 HOWTO (R_NDS32_LONGJUMP3, /* type */
1210 2, /* size (0 = byte, 1 = short, 2 = long) */
1212 FALSE, /* pc_relative */
1214 complain_overflow_dont,/* complain_on_overflow */
1215 nds32_elf_ignore_reloc,/* special_function */
1216 "R_NDS32_LONGJUMP3", /* name */
1217 FALSE, /* partial_inplace */
1218 0xffffffff, /* src_mask */
1219 0xffffffff, /* dst_mask */
1220 FALSE), /* pcrel_offset */
1222 /* Relax hint for load/store sequence. */
1223 HOWTO (R_NDS32_LOADSTORE, /* type */
1225 2, /* size (0 = byte, 1 = short, 2 = long) */
1227 FALSE, /* pc_relative */
1229 complain_overflow_dont,/* complain_on_overflow */
1230 nds32_elf_ignore_reloc,/* special_function */
1231 "R_NDS32_LOADSTORE", /* name */
1232 FALSE, /* partial_inplace */
1233 0xffffffff, /* src_mask */
1234 0xffffffff, /* dst_mask */
1235 FALSE), /* pcrel_offset */
1237 /* Relax hint for load/store sequence. */
1238 HOWTO (R_NDS32_9_FIXED_RELA, /* type */
1240 1, /* size (0 = byte, 1 = short, 2 = long) */
1242 FALSE, /* pc_relative */
1244 complain_overflow_dont,/* complain_on_overflow */
1245 nds32_elf_ignore_reloc,/* special_function */
1246 "R_NDS32_9_FIXED_RELA",/* name */
1247 FALSE, /* partial_inplace */
1248 0x000000ff, /* src_mask */
1249 0x000000ff, /* dst_mask */
1250 FALSE), /* pcrel_offset */
1252 /* Relax hint for load/store sequence. */
1253 HOWTO (R_NDS32_15_FIXED_RELA, /* type */
1255 2, /* size (0 = byte, 1 = short, 2 = long) */
1257 FALSE, /* pc_relative */
1259 complain_overflow_dont,/* complain_on_overflow */
1260 nds32_elf_ignore_reloc,/* special_function */
1261 "R_NDS32_15_FIXED_RELA", /* name */
1262 FALSE, /* partial_inplace */
1263 0x00003fff, /* src_mask */
1264 0x00003fff, /* dst_mask */
1265 FALSE), /* pcrel_offset */
1267 /* Relax hint for load/store sequence. */
1268 HOWTO (R_NDS32_17_FIXED_RELA, /* type */
1270 2, /* size (0 = byte, 1 = short, 2 = long) */
1272 FALSE, /* pc_relative */
1274 complain_overflow_dont,/* complain_on_overflow */
1275 nds32_elf_ignore_reloc,/* special_function */
1276 "R_NDS32_17_FIXED_RELA", /* name */
1277 FALSE, /* partial_inplace */
1278 0x0000ffff, /* src_mask */
1279 0x0000ffff, /* dst_mask */
1280 FALSE), /* pcrel_offset */
1282 /* Relax hint for load/store sequence. */
1283 HOWTO (R_NDS32_25_FIXED_RELA, /* type */
1285 2, /* size (0 = byte, 1 = short, 2 = long) */
1287 FALSE, /* pc_relative */
1289 complain_overflow_dont,/* complain_on_overflow */
1290 nds32_elf_ignore_reloc,/* special_function */
1291 "R_NDS32_25_FIXED_RELA", /* name */
1292 FALSE, /* partial_inplace */
1293 0x00ffffff, /* src_mask */
1294 0x00ffffff, /* dst_mask */
1295 FALSE), /* pcrel_offset */
1297 /* High 20 bits of PLT symbol offset relative to PC. */
1298 HOWTO (R_NDS32_PLTREL_HI20, /* type */
1299 12, /* rightshift */
1300 2, /* size (0 = byte, 1 = short, 2 = long) */
1302 FALSE, /* pc_relative */
1304 complain_overflow_dont,/* complain_on_overflow */
1305 bfd_elf_generic_reloc, /* special_function */
1306 "R_NDS32_PLTREL_HI20", /* name */
1307 FALSE, /* partial_inplace */
1308 0x000fffff, /* src_mask */
1309 0x000fffff, /* dst_mask */
1310 FALSE), /* pcrel_offset */
1312 /* Low 12 bits of PLT symbol offset relative to PC. */
1313 HOWTO (R_NDS32_PLTREL_LO12, /* type */
1315 2, /* size (0 = byte, 1 = short, 2 = long) */
1317 FALSE, /* pc_relative */
1319 complain_overflow_dont,/* complain_on_overflow */
1320 bfd_elf_generic_reloc, /* special_function */
1321 "R_NDS32_PLTREL_LO12", /* name */
1322 FALSE, /* partial_inplace */
1323 0x00000fff, /* src_mask */
1324 0x00000fff, /* dst_mask */
1325 FALSE), /* pcrel_offset */
1327 /* High 20 bits of PLT symbol offset relative to GOT (GP). */
1328 HOWTO (R_NDS32_PLT_GOTREL_HI20, /* type */
1329 12, /* rightshift */
1330 2, /* size (0 = byte, 1 = short, 2 = long) */
1332 FALSE, /* pc_relative */
1334 complain_overflow_dont,/* complain_on_overflow */
1335 bfd_elf_generic_reloc, /* special_function */
1336 "R_NDS32_PLT_GOTREL_HI20", /* name */
1337 FALSE, /* partial_inplace */
1338 0x000fffff, /* src_mask */
1339 0x000fffff, /* dst_mask */
1340 FALSE), /* pcrel_offset */
1342 /* Low 12 bits of PLT symbol offset relative to GOT (GP). */
1343 HOWTO (R_NDS32_PLT_GOTREL_LO12, /* type */
1345 2, /* size (0 = byte, 1 = short, 2 = long) */
1347 FALSE, /* pc_relative */
1349 complain_overflow_dont,/* complain_on_overflow */
1350 bfd_elf_generic_reloc, /* special_function */
1351 "R_NDS32_PLT_GOTREL_LO12", /* name */
1352 FALSE, /* partial_inplace */
1353 0x00000fff, /* src_mask */
1354 0x00000fff, /* dst_mask */
1355 FALSE), /* pcrel_offset */
1357 /* Small data area 12 bits offset. */
1358 HOWTO (R_NDS32_SDA12S2_DP_RELA, /* type */
1360 2, /* size (0 = byte, 1 = short, 2 = long) */
1362 FALSE, /* pc_relative */
1364 complain_overflow_signed, /* complain_on_overflow */
1365 bfd_elf_generic_reloc, /* special_function */
1366 "R_NDS32_SDA12S2_DP_RELA", /* name */
1367 FALSE, /* partial_inplace */
1368 0x00000fff, /* src_mask */
1369 0x00000fff, /* dst_mask */
1370 FALSE), /* pcrel_offset */
1372 /* Small data area 12 bits offset. */
1373 HOWTO (R_NDS32_SDA12S2_SP_RELA, /* type */
1375 2, /* size (0 = byte, 1 = short, 2 = long) */
1377 FALSE, /* pc_relative */
1379 complain_overflow_signed, /* complain_on_overflow */
1380 bfd_elf_generic_reloc, /* special_function */
1381 "R_NDS32_SDA12S2_SP_RELA", /* name */
1382 FALSE, /* partial_inplace */
1383 0x00000fff, /* src_mask */
1384 0x00000fff, /* dst_mask */
1385 FALSE), /* pcrel_offset */
1386 /* Lower 12 bits of address. */
1388 HOWTO (R_NDS32_LO12S2_DP_RELA, /* type */
1390 2, /* size (0 = byte, 1 = short, 2 = long) */
1392 FALSE, /* pc_relative */
1394 complain_overflow_dont,/* complain_on_overflow */
1395 bfd_elf_generic_reloc, /* special_function */
1396 "R_NDS32_LO12S2_DP_RELA", /* name */
1397 FALSE, /* partial_inplace */
1398 0x000003ff, /* src_mask */
1399 0x000003ff, /* dst_mask */
1400 FALSE), /* pcrel_offset */
1402 /* Lower 12 bits of address. */
1403 HOWTO (R_NDS32_LO12S2_SP_RELA,/* type */
1405 2, /* size (0 = byte, 1 = short, 2 = long) */
1407 FALSE, /* pc_relative */
1409 complain_overflow_dont,/* complain_on_overflow */
1410 bfd_elf_generic_reloc, /* special_function */
1411 "R_NDS32_LO12S2_SP_RELA", /* name */
1412 FALSE, /* partial_inplace */
1413 0x000003ff, /* src_mask */
1414 0x000003ff, /* dst_mask */
1415 FALSE), /* pcrel_offset */
1416 /* Lower 12 bits of address. Special identity for or case. */
1417 HOWTO (R_NDS32_LO12S0_ORI_RELA, /* type */
1419 2, /* size (0 = byte, 1 = short, 2 = long) */
1421 FALSE, /* pc_relative */
1423 complain_overflow_dont,/* complain_on_overflow */
1424 bfd_elf_generic_reloc, /* special_function */
1425 "R_NDS32_LO12S0_ORI_RELA", /* name */
1426 FALSE, /* partial_inplace */
1427 0x00000fff, /* src_mask */
1428 0x00000fff, /* dst_mask */
1429 FALSE), /* pcrel_offset */
1430 /* Small data area 19 bits offset. */
1431 HOWTO (R_NDS32_SDA16S3_RELA, /* type */
1433 2, /* size (0 = byte, 1 = short, 2 = long) */
1435 FALSE, /* pc_relative */
1437 complain_overflow_signed, /* complain_on_overflow */
1438 bfd_elf_generic_reloc, /* special_function */
1439 "R_NDS32_SDA16S3_RELA",/* name */
1440 FALSE, /* partial_inplace */
1441 0x0000ffff, /* src_mask */
1442 0x0000ffff, /* dst_mask */
1443 FALSE), /* pcrel_offset */
1445 /* Small data area 15 bits offset. */
1446 HOWTO (R_NDS32_SDA17S2_RELA, /* type */
1448 2, /* size (0 = byte, 1 = short, 2 = long) */
1450 FALSE, /* pc_relative */
1452 complain_overflow_signed, /* complain_on_overflow */
1453 bfd_elf_generic_reloc, /* special_function */
1454 "R_NDS32_SDA17S2_RELA",/* name */
1455 FALSE, /* partial_inplace */
1456 0x0001ffff, /* src_mask */
1457 0x0001ffff, /* dst_mask */
1458 FALSE), /* pcrel_offset */
1460 HOWTO (R_NDS32_SDA18S1_RELA, /* type */
1462 2, /* size (0 = byte, 1 = short, 2 = long) */
1464 FALSE, /* pc_relative */
1466 complain_overflow_signed, /* complain_on_overflow */
1467 bfd_elf_generic_reloc, /* special_function */
1468 "R_NDS32_SDA18S1_RELA",/* name */
1469 FALSE, /* partial_inplace */
1470 0x0003ffff, /* src_mask */
1471 0x0003ffff, /* dst_mask */
1472 FALSE), /* pcrel_offset */
1474 HOWTO (R_NDS32_SDA19S0_RELA, /* type */
1476 2, /* size (0 = byte, 1 = short, 2 = long) */
1478 FALSE, /* pc_relative */
1480 complain_overflow_signed, /* complain_on_overflow */
1481 bfd_elf_generic_reloc, /* special_function */
1482 "R_NDS32_SDA19S0_RELA",/* name */
1483 FALSE, /* partial_inplace */
1484 0x0007ffff, /* src_mask */
1485 0x0007ffff, /* dst_mask */
1486 FALSE), /* pcrel_offset */
1487 HOWTO (R_NDS32_DWARF2_OP1_RELA, /* type */
1489 0, /* size (0 = byte, 1 = short, 2 = long) */
1491 FALSE, /* pc_relative */
1493 complain_overflow_dont,/* complain_on_overflow */
1494 nds32_elf_ignore_reloc,/* special_function */
1495 "R_NDS32_DWARF2_OP1_RELA", /* name */
1496 FALSE, /* partial_inplace */
1497 0xff, /* src_mask */
1498 0xff, /* dst_mask */
1499 FALSE), /* pcrel_offset */
1500 HOWTO (R_NDS32_DWARF2_OP2_RELA, /* type */
1502 1, /* size (0 = byte, 1 = short, 2 = long) */
1504 FALSE, /* pc_relative */
1506 complain_overflow_dont,/* complain_on_overflow */
1507 nds32_elf_ignore_reloc,/* special_function */
1508 "R_NDS32_DWARF2_OP2_RELA", /* name */
1509 FALSE, /* partial_inplace */
1510 0xffff, /* src_mask */
1511 0xffff, /* dst_mask */
1512 FALSE), /* pcrel_offset */
1513 HOWTO (R_NDS32_DWARF2_LEB_RELA, /* type */
1515 2, /* size (0 = byte, 1 = short, 2 = long) */
1517 FALSE, /* pc_relative */
1519 complain_overflow_dont,/* complain_on_overflow */
1520 nds32_elf_ignore_reloc,/* special_function */
1521 "R_NDS32_DWARF2_LEB_RELA", /* name */
1522 FALSE, /* partial_inplace */
1523 0xffffffff, /* src_mask */
1524 0xffffffff, /* dst_mask */
1525 FALSE), /* pcrel_offset */
1526 HOWTO (R_NDS32_UPDATE_TA_RELA,/* type */
1528 1, /* size (0 = byte, 1 = short, 2 = long) */
1530 FALSE, /* pc_relative */
1532 complain_overflow_dont,/* complain_on_overflow */
1533 nds32_elf_ignore_reloc,/* special_function */
1534 "R_NDS32_UPDATE_TA_RELA", /* name */
1535 FALSE, /* partial_inplace */
1536 0xffff, /* src_mask */
1537 0xffff, /* dst_mask */
1538 FALSE), /* pcrel_offset */
1539 /* Like R_NDS32_PCREL, but referring to the procedure linkage table
1540 entry for the symbol. */
1541 HOWTO (R_NDS32_9_PLTREL, /* type */
1543 1, /* size (0 = byte, 1 = short, 2 = long) */
1545 TRUE, /* pc_relative */
1547 complain_overflow_signed, /* complain_on_overflow */
1548 bfd_elf_generic_reloc, /* special_function */
1549 "R_NDS32_9_PLTREL", /* name */
1550 FALSE, /* partial_inplace */
1551 0xff, /* src_mask */
1552 0xff, /* dst_mask */
1553 TRUE), /* pcrel_offset */
1554 /* Low 20 bits of PLT symbol offset relative to GOT (GP). */
1555 HOWTO (R_NDS32_PLT_GOTREL_LO20, /* type */
1557 2, /* size (0 = byte, 1 = short, 2 = long) */
1559 FALSE, /* pc_relative */
1561 complain_overflow_dont,/* complain_on_overflow */
1562 bfd_elf_generic_reloc, /* special_function */
1563 "R_NDS32_PLT_GOTREL_LO20", /* name */
1564 FALSE, /* partial_inplace */
1565 0x000fffff, /* src_mask */
1566 0x000fffff, /* dst_mask */
1567 FALSE), /* pcrel_offset */
1568 /* low 15 bits of PLT symbol offset relative to GOT (GP) */
1569 HOWTO (R_NDS32_PLT_GOTREL_LO15, /* type */
1571 2, /* size (0 = byte, 1 = short, 2 = long) */
1573 FALSE, /* pc_relative */
1575 complain_overflow_dont,/* complain_on_overflow */
1576 bfd_elf_generic_reloc, /* special_function */
1577 "R_NDS32_PLT_GOTREL_LO15", /* name */
1578 FALSE, /* partial_inplace */
1579 0x00007fff, /* src_mask */
1580 0x00007fff, /* dst_mask */
1581 FALSE), /* pcrel_offset */
1582 /* Low 19 bits of PLT symbol offset relative to GOT (GP). */
1583 HOWTO (R_NDS32_PLT_GOTREL_LO19, /* type */
1585 2, /* size (0 = byte, 1 = short, 2 = long) */
1587 FALSE, /* pc_relative */
1589 complain_overflow_dont,/* complain_on_overflow */
1590 bfd_elf_generic_reloc, /* special_function */
1591 "R_NDS32_PLT_GOTREL_LO19", /* name */
1592 FALSE, /* partial_inplace */
1593 0x0007ffff, /* src_mask */
1594 0x0007ffff, /* dst_mask */
1595 FALSE), /* pcrel_offset */
1596 HOWTO (R_NDS32_GOT_LO15, /* type */
1598 2, /* size (0 = byte, 1 = short, 2 = long) */
1600 FALSE, /* pc_relative */
1602 complain_overflow_dont,/* complain_on_overflow */
1603 bfd_elf_generic_reloc, /* special_function */
1604 "R_NDS32_GOT_LO15", /* name */
1605 FALSE, /* partial_inplace */
1606 0x00007fff, /* src_mask */
1607 0x00007fff, /* dst_mask */
1608 FALSE), /* pcrel_offset */
1609 HOWTO (R_NDS32_GOT_LO19, /* type */
1611 2, /* size (0 = byte, 1 = short, 2 = long) */
1613 FALSE, /* pc_relative */
1615 complain_overflow_dont,/* complain_on_overflow */
1616 bfd_elf_generic_reloc, /* special_function */
1617 "R_NDS32_GOT_LO19", /* name */
1618 FALSE, /* partial_inplace */
1619 0x0007ffff, /* src_mask */
1620 0x0007ffff, /* dst_mask */
1621 FALSE), /* pcrel_offset */
1622 HOWTO (R_NDS32_GOTOFF_LO15, /* type */
1624 2, /* size (0 = byte, 1 = short, 2 = long) */
1626 FALSE, /* pc_relative */
1628 complain_overflow_dont,/* complain_on_overflow */
1629 bfd_elf_generic_reloc, /* special_function */
1630 "R_NDS32_GOTOFF_LO15", /* name */
1631 FALSE, /* partial_inplace */
1632 0x00007fff, /* src_mask */
1633 0x00007fff, /* dst_mask */
1634 FALSE), /* pcrel_offset */
1635 HOWTO (R_NDS32_GOTOFF_LO19, /* type */
1637 2, /* size (0 = byte, 1 = short, 2 = long) */
1639 FALSE, /* pc_relative */
1641 complain_overflow_dont,/* complain_on_overflow */
1642 bfd_elf_generic_reloc, /* special_function */
1643 "R_NDS32_GOTOFF_LO19", /* name */
1644 FALSE, /* partial_inplace */
1645 0x0007ffff, /* src_mask */
1646 0x0007ffff, /* dst_mask */
1647 FALSE), /* pcrel_offset */
1648 /* GOT 15 bits offset. */
1649 HOWTO (R_NDS32_GOT15S2_RELA, /* type */
1651 2, /* size (0 = byte, 1 = short, 2 = long) */
1653 FALSE, /* pc_relative */
1655 complain_overflow_signed, /* complain_on_overflow */
1656 bfd_elf_generic_reloc, /* special_function */
1657 "R_NDS32_GOT15S2_RELA",/* name */
1658 FALSE, /* partial_inplace */
1659 0x00007fff, /* src_mask */
1660 0x00007fff, /* dst_mask */
1661 FALSE), /* pcrel_offset */
1662 /* GOT 17 bits offset. */
1663 HOWTO (R_NDS32_GOT17S2_RELA, /* type */
1665 2, /* size (0 = byte, 1 = short, 2 = long) */
1667 FALSE, /* pc_relative */
1669 complain_overflow_signed, /* complain_on_overflow */
1670 bfd_elf_generic_reloc, /* special_function */
1671 "R_NDS32_GOT17S2_RELA",/* name */
1672 FALSE, /* partial_inplace */
1673 0x0001ffff, /* src_mask */
1674 0x0001ffff, /* dst_mask */
1675 FALSE), /* pcrel_offset */
1676 /* A 5 bit address. */
1677 HOWTO (R_NDS32_5_RELA, /* type */
1679 1, /* size (0 = byte, 1 = short, 2 = long) */
1681 FALSE, /* pc_relative */
1683 complain_overflow_signed, /* complain_on_overflow */
1684 bfd_elf_generic_reloc, /* special_function */
1685 "R_NDS32_5_RELA", /* name */
1686 FALSE, /* partial_inplace */
1687 0x1f, /* src_mask */
1688 0x1f, /* dst_mask */
1689 FALSE), /* pcrel_offset */
1690 HOWTO (R_NDS32_10_UPCREL_RELA,/* type */
1692 1, /* size (0 = byte, 1 = short, 2 = long) */
1694 TRUE, /* pc_relative */
1696 complain_overflow_unsigned, /* complain_on_overflow */
1697 bfd_elf_generic_reloc, /* special_function */
1698 "R_NDS32_10_UPCREL_RELA", /* name */
1699 FALSE, /* partial_inplace */
1700 0x1ff, /* src_mask */
1701 0x1ff, /* dst_mask */
1702 TRUE), /* pcrel_offset */
1703 HOWTO (R_NDS32_SDA_FP7U2_RELA,/* type */
1705 1, /* size (0 = byte, 1 = short, 2 = long) */
1707 FALSE, /* pc_relative */
1709 complain_overflow_unsigned, /* complain_on_overflow */
1710 bfd_elf_generic_reloc, /* special_function */
1711 "R_NDS32_SDA_FP7U2_RELA", /* name */
1712 FALSE, /* partial_inplace */
1713 0x0000007f, /* src_mask */
1714 0x0000007f, /* dst_mask */
1715 FALSE), /* pcrel_offset */
1716 HOWTO (R_NDS32_WORD_9_PCREL_RELA, /* type */
1718 2, /* size (0 = byte, 1 = short, 2 = long) */
1720 TRUE, /* pc_relative */
1722 complain_overflow_signed, /* complain_on_overflow */
1723 bfd_elf_generic_reloc, /* special_function */
1724 "R_NDS32_WORD_9_PCREL_RELA", /* name */
1725 FALSE, /* partial_inplace */
1726 0xff, /* src_mask */
1727 0xff, /* dst_mask */
1728 TRUE), /* pcrel_offset */
1729 HOWTO (R_NDS32_25_ABS_RELA, /* type */
1731 2, /* size (0 = byte, 1 = short, 2 = long) */
1733 FALSE, /* pc_relative */
1735 complain_overflow_dont,/* complain_on_overflow */
1736 bfd_elf_generic_reloc, /* special_function */
1737 "R_NDS32_25_ABS_RELA", /* name */
1738 FALSE, /* partial_inplace */
1739 0xffffff, /* src_mask */
1740 0xffffff, /* dst_mask */
1741 FALSE), /* pcrel_offset */
1743 /* A relative 17 bit relocation for ifc, right shifted by 1. */
1744 HOWTO (R_NDS32_17IFC_PCREL_RELA, /* type */
1746 2, /* size (0 = byte, 1 = short, 2 = long) */
1748 TRUE, /* pc_relative */
1750 complain_overflow_signed, /* complain_on_overflow */
1751 bfd_elf_generic_reloc, /* special_function */
1752 "R_NDS32_17IFC_PCREL_RELA", /* name */
1753 FALSE, /* partial_inplace */
1754 0xffff, /* src_mask */
1755 0xffff, /* dst_mask */
1756 TRUE), /* pcrel_offset */
1758 /* A relative unsigned 10 bit relocation for ifc, right shifted by 1. */
1759 HOWTO (R_NDS32_10IFCU_PCREL_RELA, /* type */
1761 1, /* size (0 = byte, 1 = short, 2 = long) */
1763 TRUE, /* pc_relative */
1765 complain_overflow_unsigned, /* complain_on_overflow */
1766 bfd_elf_generic_reloc, /* special_function */
1767 "R_NDS32_10IFCU_PCREL_RELA", /* name */
1768 FALSE, /* partial_inplace */
1769 0x1ff, /* src_mask */
1770 0x1ff, /* dst_mask */
1771 TRUE), /* pcrel_offset */
1773 /* Like R_NDS32_HI20, but referring to the TLS entry for the symbol. */
1774 HOWTO (R_NDS32_TLS_LE_HI20, /* type */
1775 12, /* rightshift */
1776 2, /* size (0 = byte, 1 = short, 2 = long) */
1778 FALSE, /* pc_relative */
1780 complain_overflow_dont, /* complain_on_overflow */
1781 bfd_elf_generic_reloc, /* special_function */
1782 "R_NDS32_TLS_LE_HI20", /* name */
1783 FALSE, /* partial_inplace */
1784 0x000fffff, /* src_mask */
1785 0x000fffff, /* dst_mask */
1786 FALSE), /* pcrel_offset */
1787 HOWTO (R_NDS32_TLS_LE_LO12, /* type */
1789 2, /* size (0 = byte, 1 = short, 2 = long) */
1791 FALSE, /* pc_relative */
1793 complain_overflow_dont, /* complain_on_overflow */
1794 bfd_elf_generic_reloc, /* special_function */
1795 "R_NDS32_TLS_LE_LO12", /* name */
1796 FALSE, /* partial_inplace */
1797 0x00000fff, /* src_mask */
1798 0x00000fff, /* dst_mask */
1799 FALSE), /* pcrel_offset */
1801 /* Like R_NDS32_HI20, but referring to the TLS entry for the symbol. */
1802 HOWTO (R_NDS32_TLS_IE_HI20, /* type */
1803 12, /* rightshift */
1804 2, /* size (0 = byte, 1 = short, 2 = long) */
1806 FALSE, /* pc_relative */
1808 complain_overflow_dont, /* complain_on_overflow */
1809 bfd_elf_generic_reloc, /* special_function */
1810 "R_NDS32_TLS_IE_HI20", /* name */
1811 FALSE, /* partial_inplace */
1812 0x000fffff, /* src_mask */
1813 0x000fffff, /* dst_mask */
1814 FALSE), /* pcrel_offset */
1815 HOWTO (R_NDS32_TLS_IE_LO12S2, /* type */
1817 2, /* size (0 = byte, 1 = short, 2 = long) */
1819 FALSE, /* pc_relative */
1821 complain_overflow_dont, /* complain_on_overflow */
1822 bfd_elf_generic_reloc, /* special_function */
1823 "R_NDS32_TLS_IE_LO12S2", /* name */
1824 FALSE, /* partial_inplace */
1825 0x000003ff, /* src_mask */
1826 0x000003ff, /* dst_mask */
1827 FALSE), /* pcrel_offset */
1828 /* Mark a TLS IE entry in GOT. */
1829 HOWTO (R_NDS32_TLS_TPOFF, /* type */
1831 2, /* size (0 = byte, 1 = short, 2 = long) */
1833 FALSE, /* pc_relative */
1835 complain_overflow_bitfield, /* complain_on_overflow */
1836 bfd_elf_generic_reloc, /* special_function */
1837 "R_NDS32_TLS_TPOFF", /* name */
1838 FALSE, /* partial_inplace */
1839 0xffffffff, /* src_mask */
1840 0xffffffff, /* dst_mask */
1841 FALSE), /* pcrel_offset */
1842 /* A 20 bit address. */
1843 HOWTO (R_NDS32_TLS_LE_20, /* type */
1845 2, /* size (0 = byte, 1 = short, 2 = long) */
1847 FALSE, /* pc_relative */
1849 complain_overflow_signed, /* complain_on_overflow */
1850 bfd_elf_generic_reloc, /* special_function */
1851 "R_NDS32_TLS_LE_20", /* name */
1852 FALSE, /* partial_inplace */
1853 0xfffff, /* src_mask */
1854 0xfffff, /* dst_mask */
1855 FALSE), /* pcrel_offset */
1856 HOWTO (R_NDS32_TLS_LE_15S0, /* type */
1858 2, /* size (0 = byte, 1 = short, 2 = long) */
1860 FALSE, /* pc_relative */
1862 complain_overflow_signed, /* complain_on_overflow */
1863 bfd_elf_generic_reloc, /* special_function */
1864 "R_NDS32_TLS_LE_15S0", /* name */
1865 FALSE, /* partial_inplace */
1866 0x7fff, /* src_mask */
1867 0x7fff, /* dst_mask */
1868 FALSE), /* pcrel_offset */
1869 HOWTO (R_NDS32_TLS_LE_15S1, /* type */
1871 2, /* size (0 = byte, 1 = short, 2 = long) */
1873 FALSE, /* pc_relative */
1875 complain_overflow_signed, /* complain_on_overflow */
1876 bfd_elf_generic_reloc, /* special_function */
1877 "R_NDS32_TLS_LE_15S1", /* name */
1878 FALSE, /* partial_inplace */
1879 0x7fff, /* src_mask */
1880 0x7fff, /* dst_mask */
1881 FALSE), /* pcrel_offset */
1882 HOWTO (R_NDS32_TLS_LE_15S2, /* type */
1884 2, /* size (0 = byte, 1 = short, 2 = long) */
1886 FALSE, /* pc_relative */
1888 complain_overflow_signed, /* complain_on_overflow */
1889 bfd_elf_generic_reloc, /* special_function */
1890 "R_NDS32_TLS_LE_15S2", /* name */
1891 FALSE, /* partial_inplace */
1892 0x7fff, /* src_mask */
1893 0x7fff, /* dst_mask */
1894 FALSE), /* pcrel_offset */
1896 /* Relax hint for unconditional call sequence */
1897 HOWTO (R_NDS32_LONGCALL4, /* type */
1899 2, /* size (0 = byte, 1 = short, 2 = long) */
1901 FALSE, /* pc_relative */
1903 complain_overflow_dont, /* complain_on_overflow */
1904 nds32_elf_ignore_reloc, /* special_function */
1905 "R_NDS32_LONGCALL4", /* name */
1906 FALSE, /* partial_inplace */
1907 0xffffffff, /* src_mask */
1908 0xffffffff, /* dst_mask */
1909 FALSE), /* pcrel_offset */
1911 /* Relax hint for conditional call sequence. */
1912 HOWTO (R_NDS32_LONGCALL5, /* type */
1914 2, /* size (0 = byte, 1 = short, 2 = long) */
1916 FALSE, /* pc_relative */
1918 complain_overflow_dont, /* complain_on_overflow */
1919 nds32_elf_ignore_reloc, /* special_function */
1920 "R_NDS32_LONGCALL5", /* name */
1921 FALSE, /* partial_inplace */
1922 0xffffffff, /* src_mask */
1923 0xffffffff, /* dst_mask */
1924 FALSE), /* pcrel_offset */
1926 /* Relax hint for conditional call sequence. */
1927 HOWTO (R_NDS32_LONGCALL6, /* type */
1929 2, /* size (0 = byte, 1 = short, 2 = long) */
1931 FALSE, /* pc_relative */
1933 complain_overflow_dont, /* complain_on_overflow */
1934 nds32_elf_ignore_reloc, /* special_function */
1935 "R_NDS32_LONGCALL6", /* name */
1936 FALSE, /* partial_inplace */
1937 0xffffffff, /* src_mask */
1938 0xffffffff, /* dst_mask */
1939 FALSE), /* pcrel_offset */
1941 /* Relax hint for unconditional branch sequence. */
1942 HOWTO (R_NDS32_LONGJUMP4, /* type */
1944 2, /* size (0 = byte, 1 = short, 2 = long) */
1946 FALSE, /* pc_relative */
1948 complain_overflow_dont, /* complain_on_overflow */
1949 nds32_elf_ignore_reloc, /* special_function */
1950 "R_NDS32_LONGJUMP4", /* name */
1951 FALSE, /* partial_inplace */
1952 0xffffffff, /* src_mask */
1953 0xffffffff, /* dst_mask */
1954 FALSE), /* pcrel_offset */
1956 /* Relax hint for conditional branch sequence. */
1957 HOWTO (R_NDS32_LONGJUMP5, /* type */
1959 2, /* size (0 = byte, 1 = short, 2 = long) */
1961 FALSE, /* pc_relative */
1963 complain_overflow_dont, /* complain_on_overflow */
1964 nds32_elf_ignore_reloc, /* special_function */
1965 "R_NDS32_LONGJUMP5", /* name */
1966 FALSE, /* partial_inplace */
1967 0xffffffff, /* src_mask */
1968 0xffffffff, /* dst_mask */
1969 FALSE), /* pcrel_offset */
1971 /* Relax hint for conditional branch sequence. */
1972 HOWTO (R_NDS32_LONGJUMP6, /* type */
1974 2, /* size (0 = byte, 1 = short, 2 = long) */
1976 FALSE, /* pc_relative */
1978 complain_overflow_dont, /* complain_on_overflow */
1979 nds32_elf_ignore_reloc, /* special_function */
1980 "R_NDS32_LONGJUMP6", /* name */
1981 FALSE, /* partial_inplace */
1982 0xffffffff, /* src_mask */
1983 0xffffffff, /* dst_mask */
1984 FALSE), /* pcrel_offset */
1986 /* Relax hint for conditional branch sequence. */
1987 HOWTO (R_NDS32_LONGJUMP7, /* type */
1989 2, /* size (0 = byte, 1 = short, 2 = long) */
1991 FALSE, /* pc_relative */
1993 complain_overflow_dont, /* complain_on_overflow */
1994 nds32_elf_ignore_reloc, /* special_function */
1995 "R_NDS32_LONGJUMP7", /* name */
1996 FALSE, /* partial_inplace */
1997 0xffffffff, /* src_mask */
1998 0xffffffff, /* dst_mask */
1999 FALSE), /* pcrel_offset */
2002 /* Relocations used for relaxation. */
2003 static reloc_howto_type nds32_elf_relax_howto_table[] =
2005 HOWTO (R_NDS32_RELAX_ENTRY, /* type */
2007 2, /* size (0 = byte, 1 = short, 2 = long) */
2009 FALSE, /* pc_relative */
2011 complain_overflow_dont,/* complain_on_overflow */
2012 nds32_elf_ignore_reloc,/* special_function */
2013 "R_NDS32_RELAX_ENTRY", /* name */
2014 FALSE, /* partial_inplace */
2015 0xffffffff, /* src_mask */
2016 0xffffffff, /* dst_mask */
2017 FALSE), /* pcrel_offset */
2018 HOWTO (R_NDS32_GOT_SUFF, /* type */
2020 2, /* size (0 = byte, 1 = short, 2 = long) */
2022 FALSE, /* pc_relative */
2024 complain_overflow_dont,/* complain_on_overflow */
2025 nds32_elf_ignore_reloc,/* special_function */
2026 "R_NDS32_GOT_SUFF", /* name */
2027 FALSE, /* partial_inplace */
2028 0xffffffff, /* src_mask */
2029 0xffffffff, /* dst_mask */
2030 FALSE), /* pcrel_offset */
2031 HOWTO (R_NDS32_GOTOFF_SUFF, /* type */
2033 2, /* size (0 = byte, 1 = short, 2 = long) */
2035 FALSE, /* pc_relative */
2037 complain_overflow_bitfield, /* complain_on_overflow */
2038 nds32_elf_ignore_reloc,/* special_function */
2039 "R_NDS32_GOTOFF_SUFF", /* name */
2040 FALSE, /* partial_inplace */
2041 0xffffffff, /* src_mask */
2042 0xffffffff, /* dst_mask */
2043 FALSE), /* pcrel_offset */
2044 HOWTO (R_NDS32_PLT_GOT_SUFF, /* type */
2046 2, /* size (0 = byte, 1 = short, 2 = long) */
2048 FALSE, /* pc_relative */
2050 complain_overflow_dont,/* complain_on_overflow */
2051 nds32_elf_ignore_reloc,/* special_function */
2052 "R_NDS32_PLT_GOT_SUFF",/* name */
2053 FALSE, /* partial_inplace */
2054 0xffffffff, /* src_mask */
2055 0xffffffff, /* dst_mask */
2056 FALSE), /* pcrel_offset */
2057 HOWTO (R_NDS32_MULCALL_SUFF, /* type */
2059 2, /* size (0 = byte, 1 = short, 2 = long) */
2061 FALSE, /* pc_relative */
2063 complain_overflow_dont,/* complain_on_overflow */
2064 nds32_elf_ignore_reloc,/* special_function */
2065 "R_NDS32_MULCALL_SUFF",/* name */
2066 FALSE, /* partial_inplace */
2067 0xffffffff, /* src_mask */
2068 0xffffffff, /* dst_mask */
2069 FALSE), /* pcrel_offset */
2070 HOWTO (R_NDS32_PTR, /* type */
2072 2, /* size (0 = byte, 1 = short, 2 = long) */
2074 FALSE, /* pc_relative */
2076 complain_overflow_dont,/* complain_on_overflow */
2077 nds32_elf_ignore_reloc,/* special_function */
2078 "R_NDS32_PTR", /* name */
2079 FALSE, /* partial_inplace */
2080 0xffffffff, /* src_mask */
2081 0xffffffff, /* dst_mask */
2082 FALSE), /* pcrel_offset */
2083 HOWTO (R_NDS32_PTR_COUNT, /* type */
2085 2, /* size (0 = byte, 1 = short, 2 = long) */
2087 FALSE, /* pc_relative */
2089 complain_overflow_dont,/* complain_on_overflow */
2090 nds32_elf_ignore_reloc,/* special_function */
2091 "R_NDS32_PTR_COUNT", /* name */
2092 FALSE, /* partial_inplace */
2093 0xffffffff, /* src_mask */
2094 0xffffffff, /* dst_mask */
2095 FALSE), /* pcrel_offset */
2096 HOWTO (R_NDS32_PTR_RESOLVED, /* type */
2098 2, /* size (0 = byte, 1 = short, 2 = long) */
2100 FALSE, /* pc_relative */
2102 complain_overflow_dont,/* complain_on_overflow */
2103 nds32_elf_ignore_reloc,/* special_function */
2104 "R_NDS32_PTR_RESOLVED",/* name */
2105 FALSE, /* partial_inplace */
2106 0xffffffff, /* src_mask */
2107 0xffffffff, /* dst_mask */
2108 FALSE), /* pcrel_offset */
2109 HOWTO (R_NDS32_PLTBLOCK, /* type */
2111 2, /* size (0 = byte, 1 = short, 2 = long) */
2113 FALSE, /* pc_relative */
2115 complain_overflow_dont,/* complain_on_overflow */
2116 nds32_elf_ignore_reloc,/* special_function */
2117 "R_NDS32_PLTBLOCK", /* name */
2118 FALSE, /* partial_inplace */
2119 0xffffffff, /* src_mask */
2120 0xffffffff, /* dst_mask */
2121 FALSE), /* pcrel_offset */
2122 HOWTO (R_NDS32_RELAX_REGION_BEGIN, /* type */
2124 2, /* size (0 = byte, 1 = short, 2 = long) */
2126 FALSE, /* pc_relative */
2128 complain_overflow_dont,/* complain_on_overflow */
2129 nds32_elf_ignore_reloc,/* special_function */
2130 "R_NDS32_RELAX_REGION_BEGIN", /* name */
2131 FALSE, /* partial_inplace */
2132 0xffffffff, /* src_mask */
2133 0xffffffff, /* dst_mask */
2134 FALSE), /* pcrel_offset */
2135 HOWTO (R_NDS32_RELAX_REGION_END, /* type */
2137 2, /* size (0 = byte, 1 = short, 2 = long) */
2139 FALSE, /* pc_relative */
2141 complain_overflow_dont,/* complain_on_overflow */
2142 nds32_elf_ignore_reloc,/* special_function */
2143 "R_NDS32_RELAX_REGION_END", /* name */
2144 FALSE, /* partial_inplace */
2145 0xffffffff, /* src_mask */
2146 0xffffffff, /* dst_mask */
2147 FALSE), /* pcrel_offset */
2148 HOWTO (R_NDS32_MINUEND, /* type */
2150 2, /* size (0 = byte, 1 = short, 2 = long) */
2152 FALSE, /* pc_relative */
2154 complain_overflow_dont,/* complain_on_overflow */
2155 nds32_elf_ignore_reloc,/* special_function */
2156 "R_NDS32_MINUEND", /* name */
2157 FALSE, /* partial_inplace */
2158 0xffffffff, /* src_mask */
2159 0xffffffff, /* dst_mask */
2160 FALSE), /* pcrel_offset */
2161 HOWTO (R_NDS32_SUBTRAHEND, /* type */
2163 2, /* size (0 = byte, 1 = short, 2 = long) */
2165 FALSE, /* pc_relative */
2167 complain_overflow_dont,/* complain_on_overflow */
2168 nds32_elf_ignore_reloc,/* special_function */
2169 "R_NDS32_SUBTRAHEND", /* name */
2170 FALSE, /* partial_inplace */
2171 0xffffffff, /* src_mask */
2172 0xffffffff, /* dst_mask */
2173 FALSE), /* pcrel_offset */
2174 HOWTO (R_NDS32_DIFF8, /* type */
2176 0, /* size (0 = byte, 1 = short, 2 = long) */
2178 FALSE, /* pc_relative */
2180 complain_overflow_dont,/* complain_on_overflow */
2181 nds32_elf_ignore_reloc,/* special_function */
2182 "R_NDS32_DIFF8", /* name */
2183 FALSE, /* partial_inplace */
2184 0x000000ff, /* src_mask */
2185 0x000000ff, /* dst_mask */
2186 FALSE), /* pcrel_offset */
2187 HOWTO (R_NDS32_DIFF16, /* type */
2189 1, /* size (0 = byte, 1 = short, 2 = long) */
2191 FALSE, /* pc_relative */
2193 complain_overflow_dont,/* complain_on_overflow */
2194 nds32_elf_ignore_reloc,/* special_function */
2195 "R_NDS32_DIFF16", /* name */
2196 FALSE, /* partial_inplace */
2197 0x0000ffff, /* src_mask */
2198 0x0000ffff, /* dst_mask */
2199 FALSE), /* pcrel_offset */
2200 HOWTO (R_NDS32_DIFF32, /* type */
2202 2, /* size (0 = byte, 1 = short, 2 = long) */
2204 FALSE, /* pc_relative */
2206 complain_overflow_dont,/* complain_on_overflow */
2207 nds32_elf_ignore_reloc,/* special_function */
2208 "R_NDS32_DIFF32", /* name */
2209 FALSE, /* partial_inplace */
2210 0xffffffff, /* src_mask */
2211 0xffffffff, /* dst_mask */
2212 FALSE), /* pcrel_offset */
2213 HOWTO (R_NDS32_DIFF_ULEB128, /* type */
2215 0, /* size (0 = byte, 1 = short, 2 = long) */
2217 FALSE, /* pc_relative */
2219 complain_overflow_dont,/* complain_on_overflow */
2220 nds32_elf_ignore_reloc,/* special_function */
2221 "R_NDS32_DIFF_ULEB128",/* name */
2222 FALSE, /* partial_inplace */
2223 0xffffffff, /* src_mask */
2224 0xffffffff, /* dst_mask */
2225 FALSE), /* pcrel_offset */
2226 HOWTO (R_NDS32_DATA, /* type */
2228 2, /* size (0 = byte, 1 = short, 2 = long) */
2230 FALSE, /* pc_relative */
2232 complain_overflow_dont,/* complain_on_overflow */
2233 nds32_elf_ignore_reloc,/* special_function */
2234 "R_NDS32_DATA", /* name */
2235 FALSE, /* partial_inplace */
2236 0xffffffff, /* src_mask */
2237 0xffffffff, /* dst_mask */
2238 FALSE), /* pcrel_offset */
2239 HOWTO (R_NDS32_TRAN, /* type */
2241 2, /* size (0 = byte, 1 = short, 2 = long) */
2243 FALSE, /* pc_relative */
2245 complain_overflow_dont,/* complain_on_overflow */
2246 nds32_elf_ignore_reloc,/* special_function */
2247 "R_NDS32_TRAN", /* name */
2248 FALSE, /* partial_inplace */
2249 0xffffffff, /* src_mask */
2250 0xffffffff, /* dst_mask */
2251 FALSE), /* pcrel_offset */
2252 HOWTO (R_NDS32_TLS_LE_ADD, /* type */
2254 2, /* size (0 = byte, 1 = short, 2 = long) */
2256 FALSE, /* pc_relative */
2258 complain_overflow_dont, /* complain_on_overflow */
2259 nds32_elf_ignore_reloc, /* special_function */
2260 "R_NDS32_TLS_LE_ADD", /* name */
2261 FALSE, /* partial_inplace */
2262 0xffffffff, /* src_mask */
2263 0xffffffff, /* dst_mask */
2264 FALSE), /* pcrel_offset */
2265 HOWTO (R_NDS32_TLS_LE_LS, /* type */
2267 2, /* size (0 = byte, 1 = short, 2 = long) */
2269 FALSE, /* pc_relative */
2271 complain_overflow_dont, /* complain_on_overflow */
2272 nds32_elf_ignore_reloc, /* special_function */
2273 "R_NDS32_TLS_LE_LS", /* name */
2274 FALSE, /* partial_inplace */
2275 0xffffffff, /* src_mask */
2276 0xffffffff, /* dst_mask */
2277 FALSE), /* pcrel_offset */
2278 HOWTO (R_NDS32_EMPTY, /* type */
2280 2, /* size (0 = byte, 1 = short, 2 = long) */
2282 FALSE, /* pc_relative */
2284 complain_overflow_dont, /* complain_on_overflow */
2285 nds32_elf_ignore_reloc, /* special_function */
2286 "R_NDS32_EMPTY", /* name */
2287 FALSE, /* partial_inplace */
2288 0xffffffff, /* src_mask */
2289 0xffffffff, /* dst_mask */
2290 FALSE), /* pcrel_offset */
2294 /* nds32_insertion_sort sorts an array with nmemb elements of size size.
2295 This prototype is the same as qsort (). */
2298 nds32_insertion_sort (void *base, size_t nmemb, size_t size,
2299 int (*compar) (const void *lhs, const void *rhs))
2301 char *ptr = (char *) base;
2303 char *tmp = xmalloc (size);
2305 /* If i is less than j, i is inserted before j.
2307 |---- j ----- i --------------|
2312 for (i = 1; i < (int) nmemb; i++)
2314 for (j = (i - 1); j >= 0; j--)
2315 if (compar (ptr + i * size, ptr + j * size) >= 0)
2321 continue; /* i is in order. */
2323 memcpy (tmp, ptr + i * size, size);
2324 memmove (ptr + (j + 1) * size, ptr + j * size, (i - j) * size);
2325 memcpy (ptr + j * size, tmp, size);
2330 /* Sort relocation by r_offset.
2332 We didn't use qsort () in stdlib, because quick-sort is not a stable sorting
2333 algorithm. Relocations at the same r_offset must keep their order.
2334 For example, RELAX_ENTRY must be the very first relocation entry.
2336 Currently, this function implements insertion-sort.
2338 FIXME: If we already sort them in assembler, why bother sort them
2342 compar_reloc (const void *lhs, const void *rhs)
2344 const Elf_Internal_Rela *l = (const Elf_Internal_Rela *) lhs;
2345 const Elf_Internal_Rela *r = (const Elf_Internal_Rela *) rhs;
2347 if (l->r_offset > r->r_offset)
2349 else if (l->r_offset == r->r_offset)
2355 /* Functions listed below are only used for old relocs.
2356 * nds32_elf_9_pcrel_reloc
2357 * nds32_elf_do_9_pcrel_reloc
2358 * nds32_elf_hi20_reloc
2359 * nds32_elf_relocate_hi20
2360 * nds32_elf_lo12_reloc
2361 * nds32_elf_sda15_reloc
2362 * nds32_elf_generic_reloc
2365 /* Handle the R_NDS32_9_PCREL & R_NDS32_9_PCREL_RELA reloc. */
2367 static bfd_reloc_status_type
2368 nds32_elf_9_pcrel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2369 void *data, asection *input_section, bfd *output_bfd,
2370 char **error_message ATTRIBUTE_UNUSED)
2372 /* This part is from bfd_elf_generic_reloc. */
2373 if (output_bfd != (bfd *) NULL
2374 && (symbol->flags & BSF_SECTION_SYM) == 0
2375 && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0))
2377 reloc_entry->address += input_section->output_offset;
2378 return bfd_reloc_ok;
2381 if (output_bfd != NULL)
2383 /* FIXME: See bfd_perform_relocation. Is this right? */
2384 return bfd_reloc_continue;
2387 return nds32_elf_do_9_pcrel_reloc (abfd, reloc_entry->howto,
2389 data, reloc_entry->address,
2392 + symbol->section->output_section->vma
2393 + symbol->section->output_offset),
2394 reloc_entry->addend);
2397 /* Utility to actually perform an R_NDS32_9_PCREL reloc. */
2398 #define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1)
2400 static bfd_reloc_status_type
2401 nds32_elf_do_9_pcrel_reloc (bfd *abfd, reloc_howto_type *howto,
2402 asection *input_section, bfd_byte *data,
2404 asection *symbol_section ATTRIBUTE_UNUSED,
2405 bfd_vma symbol_value, bfd_vma addend)
2407 bfd_signed_vma relocation;
2409 bfd_reloc_status_type status;
2411 /* Sanity check the address (offset in section). */
2412 if (offset > bfd_get_section_limit (abfd, input_section))
2413 return bfd_reloc_outofrange;
2415 relocation = symbol_value + addend;
2416 /* Make it pc relative. */
2417 relocation -= (input_section->output_section->vma
2418 + input_section->output_offset);
2419 /* These jumps mask off the lower two bits of the current address
2420 before doing pcrel calculations. */
2421 relocation -= (offset & -(bfd_vma) 2);
2423 if (relocation < -ACCURATE_8BIT_S1 || relocation >= ACCURATE_8BIT_S1)
2424 status = bfd_reloc_overflow;
2426 status = bfd_reloc_ok;
2428 x = bfd_getb16 (data + offset);
2430 relocation >>= howto->rightshift;
2431 relocation <<= howto->bitpos;
2432 x = (x & ~howto->dst_mask)
2433 | (((x & howto->src_mask) + relocation) & howto->dst_mask);
2435 bfd_putb16 ((bfd_vma) x, data + offset);
2440 /* Handle the R_NDS32_HI20_[SU]LO relocs.
2441 HI20_SLO is for the add3 and load/store with displacement instructions.
2442 HI20 is for the or3 instruction.
2443 For R_NDS32_HI20_SLO, the lower 16 bits are sign extended when added to
2444 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
2445 we must add one to the high 16 bytes (which will get subtracted off when
2446 the low 16 bits are added).
2447 These relocs have to be done in combination with an R_NDS32_LO12 reloc
2448 because there is a carry from the LO12 to the HI20. Here we just save
2449 the information we need; we do the actual relocation when we see the LO12.
2450 This code is copied from the elf32-mips.c. We also support an arbitrary
2451 number of HI20 relocs to be associated with a single LO12 reloc. The
2452 assembler sorts the relocs to ensure each HI20 immediately precedes its
2453 LO12. However if there are multiple copies, the assembler may not find
2454 the real LO12 so it picks the first one it finds. */
2458 struct nds32_hi20 *next;
2463 static struct nds32_hi20 *nds32_hi20_list;
2465 static bfd_reloc_status_type
2466 nds32_elf_hi20_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
2467 asymbol *symbol, void *data, asection *input_section,
2468 bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED)
2470 bfd_reloc_status_type ret;
2472 struct nds32_hi20 *n;
2474 /* This part is from bfd_elf_generic_reloc.
2475 If we're relocating, and this an external symbol, we don't want
2476 to change anything. */
2477 if (output_bfd != (bfd *) NULL
2478 && (symbol->flags & BSF_SECTION_SYM) == 0 && reloc_entry->addend == 0)
2480 reloc_entry->address += input_section->output_offset;
2481 return bfd_reloc_ok;
2484 /* Sanity check the address (offset in section). */
2485 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
2486 return bfd_reloc_outofrange;
2489 if (bfd_is_und_section (symbol->section) && output_bfd == (bfd *) NULL)
2490 ret = bfd_reloc_undefined;
2492 if (bfd_is_com_section (symbol->section))
2495 relocation = symbol->value;
2497 relocation += symbol->section->output_section->vma;
2498 relocation += symbol->section->output_offset;
2499 relocation += reloc_entry->addend;
2501 /* Save the information, and let LO12 do the actual relocation. */
2502 n = (struct nds32_hi20 *) bfd_malloc ((bfd_size_type) sizeof *n);
2504 return bfd_reloc_outofrange;
2506 n->addr = (bfd_byte *) data + reloc_entry->address;
2507 n->addend = relocation;
2508 n->next = nds32_hi20_list;
2509 nds32_hi20_list = n;
2511 if (output_bfd != (bfd *) NULL)
2512 reloc_entry->address += input_section->output_offset;
2517 /* Handle an NDS32 ELF HI20 reloc. */
2520 nds32_elf_relocate_hi20 (bfd *input_bfd ATTRIBUTE_UNUSED,
2521 int type ATTRIBUTE_UNUSED, Elf_Internal_Rela *relhi,
2522 Elf_Internal_Rela *rello, bfd_byte *contents,
2528 insn = bfd_getb32 (contents + relhi->r_offset);
2530 addlo = bfd_getb32 (contents + rello->r_offset);
2533 addend += ((insn & 0xfffff) << 20) + addlo;
2535 insn = (insn & 0xfff00000) | ((addend >> 12) & 0xfffff);
2536 bfd_putb32 (insn, contents + relhi->r_offset);
2539 /* Do an R_NDS32_LO12 relocation. This is a straightforward 12 bit
2540 inplace relocation; this function exists in order to do the
2541 R_NDS32_HI20_[SU]LO relocation described above. */
2543 static bfd_reloc_status_type
2544 nds32_elf_lo12_reloc (bfd *input_bfd, arelent *reloc_entry, asymbol *symbol,
2545 void *data, asection *input_section, bfd *output_bfd,
2546 char **error_message)
2548 /* This part is from bfd_elf_generic_reloc.
2549 If we're relocating, and this an external symbol, we don't want
2550 to change anything. */
2551 if (output_bfd != NULL && (symbol->flags & BSF_SECTION_SYM) == 0
2552 && reloc_entry->addend == 0)
2554 reloc_entry->address += input_section->output_offset;
2555 return bfd_reloc_ok;
2558 if (nds32_hi20_list != NULL)
2560 struct nds32_hi20 *l;
2562 l = nds32_hi20_list;
2567 unsigned long vallo;
2568 struct nds32_hi20 *next;
2570 /* Do the HI20 relocation. Note that we actually don't need
2571 to know anything about the LO12 itself, except where to
2572 find the low 12 bits of the addend needed by the LO12. */
2573 insn = bfd_getb32 (l->addr);
2574 vallo = bfd_getb32 ((bfd_byte *) data + reloc_entry->address);
2576 switch (reloc_entry->howto->type)
2578 case R_NDS32_LO12S3:
2582 case R_NDS32_LO12S2:
2586 case R_NDS32_LO12S1:
2590 case R_NDS32_LO12S0:
2595 val = ((insn & 0xfffff) << 12) + vallo;
2598 insn = (insn & ~(bfd_vma) 0xfffff) | ((val >> 12) & 0xfffff);
2599 bfd_putb32 ((bfd_vma) insn, l->addr);
2606 nds32_hi20_list = NULL;
2609 /* Now do the LO12 reloc in the usual way.
2610 ??? It would be nice to call bfd_elf_generic_reloc here,
2611 but we have partial_inplace set. bfd_elf_generic_reloc will
2612 pass the handling back to bfd_install_relocation which will install
2613 a section relative addend which is wrong. */
2614 return nds32_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
2615 input_section, output_bfd, error_message);
2618 /* Do generic partial_inplace relocation.
2619 This is a local replacement for bfd_elf_generic_reloc. */
2621 static bfd_reloc_status_type
2622 nds32_elf_generic_reloc (bfd *input_bfd, arelent *reloc_entry,
2623 asymbol *symbol, void *data, asection *input_section,
2624 bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED)
2626 bfd_reloc_status_type ret;
2628 bfd_byte *inplace_address;
2630 /* This part is from bfd_elf_generic_reloc.
2631 If we're relocating, and this an external symbol, we don't want
2632 to change anything. */
2633 if (output_bfd != NULL && (symbol->flags & BSF_SECTION_SYM) == 0
2634 && reloc_entry->addend == 0)
2636 reloc_entry->address += input_section->output_offset;
2637 return bfd_reloc_ok;
2640 /* Now do the reloc in the usual way.
2641 ??? It would be nice to call bfd_elf_generic_reloc here,
2642 but we have partial_inplace set. bfd_elf_generic_reloc will
2643 pass the handling back to bfd_install_relocation which will install
2644 a section relative addend which is wrong. */
2646 /* Sanity check the address (offset in section). */
2647 if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
2648 return bfd_reloc_outofrange;
2651 if (bfd_is_und_section (symbol->section) && output_bfd == (bfd *) NULL)
2652 ret = bfd_reloc_undefined;
2654 if (bfd_is_com_section (symbol->section) || output_bfd != (bfd *) NULL)
2657 relocation = symbol->value;
2659 /* Only do this for a final link. */
2660 if (output_bfd == (bfd *) NULL)
2662 relocation += symbol->section->output_section->vma;
2663 relocation += symbol->section->output_offset;
2666 relocation += reloc_entry->addend;
2667 switch (reloc_entry->howto->type)
2669 case R_NDS32_LO12S3:
2673 case R_NDS32_LO12S2:
2677 case R_NDS32_LO12S1:
2681 case R_NDS32_LO12S0:
2687 inplace_address = (bfd_byte *) data + reloc_entry->address;
2690 x = ((x & ~reloc_entry->howto->dst_mask) | \
2691 (((x & reloc_entry->howto->src_mask) + relocation) & \
2692 reloc_entry->howto->dst_mask))
2694 switch (reloc_entry->howto->size)
2698 short x = bfd_getb16 (inplace_address);
2701 bfd_putb16 ((bfd_vma) x, inplace_address);
2706 unsigned long x = bfd_getb32 (inplace_address);
2709 bfd_putb32 ((bfd_vma) x, inplace_address);
2716 if (output_bfd != (bfd *) NULL)
2717 reloc_entry->address += input_section->output_offset;
2722 /* Handle the R_NDS32_SDA15 reloc.
2723 This reloc is used to compute the address of objects in the small data area
2724 and to perform loads and stores from that area.
2725 The lower 15 bits are sign extended and added to the register specified
2726 in the instruction, which is assumed to point to _SDA_BASE_.
2728 Since the lower 15 bits offset is left-shifted 0, 1 or 2 bits depending on
2729 the access size, this must be taken care of. */
2731 static bfd_reloc_status_type
2732 nds32_elf_sda15_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
2733 asymbol *symbol, void *data ATTRIBUTE_UNUSED,
2734 asection *input_section, bfd *output_bfd,
2735 char **error_message ATTRIBUTE_UNUSED)
2737 /* This part is from bfd_elf_generic_reloc. */
2738 if (output_bfd != (bfd *) NULL
2739 && (symbol->flags & BSF_SECTION_SYM) == 0
2740 && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0))
2742 reloc_entry->address += input_section->output_offset;
2743 return bfd_reloc_ok;
2746 if (output_bfd != NULL)
2748 /* FIXME: See bfd_perform_relocation. Is this right? */
2749 return bfd_reloc_continue;
2752 /* FIXME: not sure what to do here yet. But then again, the linker
2753 may never call us. */
2757 /* nds32_elf_ignore_reloc is the special function for
2758 relocation types which don't need to be relocated
2759 like relaxation relocation types.
2760 This function simply return bfd_reloc_ok when it is
2763 static bfd_reloc_status_type
2764 nds32_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
2765 asymbol *symbol ATTRIBUTE_UNUSED,
2766 void *data ATTRIBUTE_UNUSED, asection *input_section,
2767 bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED)
2769 if (output_bfd != NULL)
2770 reloc_entry->address += input_section->output_offset;
2772 return bfd_reloc_ok;
2776 /* Map BFD reloc types to NDS32 ELF reloc types. */
2778 struct nds32_reloc_map_entry
2780 bfd_reloc_code_real_type bfd_reloc_val;
2781 unsigned char elf_reloc_val;
2784 static const struct nds32_reloc_map_entry nds32_reloc_map[] =
2786 {BFD_RELOC_NONE, R_NDS32_NONE},
2787 {BFD_RELOC_16, R_NDS32_16_RELA},
2788 {BFD_RELOC_32, R_NDS32_32_RELA},
2789 {BFD_RELOC_NDS32_20, R_NDS32_20_RELA},
2790 {BFD_RELOC_NDS32_5, R_NDS32_5_RELA},
2791 {BFD_RELOC_NDS32_9_PCREL, R_NDS32_9_PCREL_RELA},
2792 {BFD_RELOC_NDS32_WORD_9_PCREL, R_NDS32_WORD_9_PCREL_RELA},
2793 {BFD_RELOC_NDS32_15_PCREL, R_NDS32_15_PCREL_RELA},
2794 {BFD_RELOC_NDS32_17_PCREL, R_NDS32_17_PCREL_RELA},
2795 {BFD_RELOC_NDS32_25_PCREL, R_NDS32_25_PCREL_RELA},
2796 {BFD_RELOC_NDS32_10_UPCREL, R_NDS32_10_UPCREL_RELA},
2797 {BFD_RELOC_NDS32_HI20, R_NDS32_HI20_RELA},
2798 {BFD_RELOC_NDS32_LO12S3, R_NDS32_LO12S3_RELA},
2799 {BFD_RELOC_NDS32_LO12S2, R_NDS32_LO12S2_RELA},
2800 {BFD_RELOC_NDS32_LO12S1, R_NDS32_LO12S1_RELA},
2801 {BFD_RELOC_NDS32_LO12S0, R_NDS32_LO12S0_RELA},
2802 {BFD_RELOC_NDS32_LO12S0_ORI, R_NDS32_LO12S0_ORI_RELA},
2803 {BFD_RELOC_NDS32_SDA15S3, R_NDS32_SDA15S3_RELA},
2804 {BFD_RELOC_NDS32_SDA15S2, R_NDS32_SDA15S2_RELA},
2805 {BFD_RELOC_NDS32_SDA15S1, R_NDS32_SDA15S1_RELA},
2806 {BFD_RELOC_NDS32_SDA15S0, R_NDS32_SDA15S0_RELA},
2807 {BFD_RELOC_VTABLE_INHERIT, R_NDS32_RELA_GNU_VTINHERIT},
2808 {BFD_RELOC_VTABLE_ENTRY, R_NDS32_RELA_GNU_VTENTRY},
2810 {BFD_RELOC_NDS32_GOT20, R_NDS32_GOT20},
2811 {BFD_RELOC_NDS32_9_PLTREL, R_NDS32_9_PLTREL},
2812 {BFD_RELOC_NDS32_25_PLTREL, R_NDS32_25_PLTREL},
2813 {BFD_RELOC_NDS32_COPY, R_NDS32_COPY},
2814 {BFD_RELOC_NDS32_GLOB_DAT, R_NDS32_GLOB_DAT},
2815 {BFD_RELOC_NDS32_JMP_SLOT, R_NDS32_JMP_SLOT},
2816 {BFD_RELOC_NDS32_RELATIVE, R_NDS32_RELATIVE},
2817 {BFD_RELOC_NDS32_GOTOFF, R_NDS32_GOTOFF},
2818 {BFD_RELOC_NDS32_GOTPC20, R_NDS32_GOTPC20},
2819 {BFD_RELOC_NDS32_GOT_HI20, R_NDS32_GOT_HI20},
2820 {BFD_RELOC_NDS32_GOT_LO12, R_NDS32_GOT_LO12},
2821 {BFD_RELOC_NDS32_GOT_LO15, R_NDS32_GOT_LO15},
2822 {BFD_RELOC_NDS32_GOT_LO19, R_NDS32_GOT_LO19},
2823 {BFD_RELOC_NDS32_GOTPC_HI20, R_NDS32_GOTPC_HI20},
2824 {BFD_RELOC_NDS32_GOTPC_LO12, R_NDS32_GOTPC_LO12},
2825 {BFD_RELOC_NDS32_GOTOFF_HI20, R_NDS32_GOTOFF_HI20},
2826 {BFD_RELOC_NDS32_GOTOFF_LO12, R_NDS32_GOTOFF_LO12},
2827 {BFD_RELOC_NDS32_GOTOFF_LO15, R_NDS32_GOTOFF_LO15},
2828 {BFD_RELOC_NDS32_GOTOFF_LO19, R_NDS32_GOTOFF_LO19},
2829 {BFD_RELOC_NDS32_INSN16, R_NDS32_INSN16},
2830 {BFD_RELOC_NDS32_LABEL, R_NDS32_LABEL},
2831 {BFD_RELOC_NDS32_LONGCALL1, R_NDS32_LONGCALL1},
2832 {BFD_RELOC_NDS32_LONGCALL2, R_NDS32_LONGCALL2},
2833 {BFD_RELOC_NDS32_LONGCALL3, R_NDS32_LONGCALL3},
2834 {BFD_RELOC_NDS32_LONGCALL4, R_NDS32_LONGCALL4},
2835 {BFD_RELOC_NDS32_LONGCALL5, R_NDS32_LONGCALL5},
2836 {BFD_RELOC_NDS32_LONGCALL6, R_NDS32_LONGCALL6},
2837 {BFD_RELOC_NDS32_LONGJUMP1, R_NDS32_LONGJUMP1},
2838 {BFD_RELOC_NDS32_LONGJUMP2, R_NDS32_LONGJUMP2},
2839 {BFD_RELOC_NDS32_LONGJUMP3, R_NDS32_LONGJUMP3},
2840 {BFD_RELOC_NDS32_LONGJUMP4, R_NDS32_LONGJUMP4},
2841 {BFD_RELOC_NDS32_LONGJUMP5, R_NDS32_LONGJUMP5},
2842 {BFD_RELOC_NDS32_LONGJUMP6, R_NDS32_LONGJUMP6},
2843 {BFD_RELOC_NDS32_LONGJUMP7, R_NDS32_LONGJUMP7},
2844 {BFD_RELOC_NDS32_LOADSTORE, R_NDS32_LOADSTORE},
2845 {BFD_RELOC_NDS32_9_FIXED, R_NDS32_9_FIXED_RELA},
2846 {BFD_RELOC_NDS32_15_FIXED, R_NDS32_15_FIXED_RELA},
2847 {BFD_RELOC_NDS32_17_FIXED, R_NDS32_17_FIXED_RELA},
2848 {BFD_RELOC_NDS32_25_FIXED, R_NDS32_25_FIXED_RELA},
2849 {BFD_RELOC_NDS32_PLTREL_HI20, R_NDS32_PLTREL_HI20},
2850 {BFD_RELOC_NDS32_PLTREL_LO12, R_NDS32_PLTREL_LO12},
2851 {BFD_RELOC_NDS32_PLT_GOTREL_HI20, R_NDS32_PLT_GOTREL_HI20},
2852 {BFD_RELOC_NDS32_PLT_GOTREL_LO12, R_NDS32_PLT_GOTREL_LO12},
2853 {BFD_RELOC_NDS32_PLT_GOTREL_LO15, R_NDS32_PLT_GOTREL_LO15},
2854 {BFD_RELOC_NDS32_PLT_GOTREL_LO19, R_NDS32_PLT_GOTREL_LO19},
2855 {BFD_RELOC_NDS32_PLT_GOTREL_LO20, R_NDS32_PLT_GOTREL_LO20},
2856 {BFD_RELOC_NDS32_SDA12S2_DP, R_NDS32_SDA12S2_DP_RELA},
2857 {BFD_RELOC_NDS32_SDA12S2_SP, R_NDS32_SDA12S2_SP_RELA},
2858 {BFD_RELOC_NDS32_LO12S2_DP, R_NDS32_LO12S2_DP_RELA},
2859 {BFD_RELOC_NDS32_LO12S2_SP, R_NDS32_LO12S2_SP_RELA},
2860 {BFD_RELOC_NDS32_SDA16S3, R_NDS32_SDA16S3_RELA},
2861 {BFD_RELOC_NDS32_SDA17S2, R_NDS32_SDA17S2_RELA},
2862 {BFD_RELOC_NDS32_SDA18S1, R_NDS32_SDA18S1_RELA},
2863 {BFD_RELOC_NDS32_SDA19S0, R_NDS32_SDA19S0_RELA},
2864 {BFD_RELOC_NDS32_SDA_FP7U2_RELA, R_NDS32_SDA_FP7U2_RELA},
2865 {BFD_RELOC_NDS32_DWARF2_OP1, R_NDS32_DWARF2_OP1_RELA},
2866 {BFD_RELOC_NDS32_DWARF2_OP2, R_NDS32_DWARF2_OP2_RELA},
2867 {BFD_RELOC_NDS32_DWARF2_LEB, R_NDS32_DWARF2_LEB_RELA},
2868 {BFD_RELOC_NDS32_UPDATE_TA, R_NDS32_UPDATE_TA_RELA},
2869 {BFD_RELOC_NDS32_GOT_SUFF, R_NDS32_GOT_SUFF},
2870 {BFD_RELOC_NDS32_GOTOFF_SUFF, R_NDS32_GOTOFF_SUFF},
2871 {BFD_RELOC_NDS32_GOT15S2, R_NDS32_GOT15S2_RELA},
2872 {BFD_RELOC_NDS32_GOT17S2, R_NDS32_GOT17S2_RELA},
2873 {BFD_RELOC_NDS32_PTR, R_NDS32_PTR},
2874 {BFD_RELOC_NDS32_PTR_COUNT, R_NDS32_PTR_COUNT},
2875 {BFD_RELOC_NDS32_PLT_GOT_SUFF, R_NDS32_PLT_GOT_SUFF},
2876 {BFD_RELOC_NDS32_PTR_RESOLVED, R_NDS32_PTR_RESOLVED},
2877 {BFD_RELOC_NDS32_RELAX_ENTRY, R_NDS32_RELAX_ENTRY},
2878 {BFD_RELOC_NDS32_MULCALL_SUFF, R_NDS32_MULCALL_SUFF},
2879 {BFD_RELOC_NDS32_PLTBLOCK, R_NDS32_PLTBLOCK},
2880 {BFD_RELOC_NDS32_RELAX_REGION_BEGIN, R_NDS32_RELAX_REGION_BEGIN},
2881 {BFD_RELOC_NDS32_RELAX_REGION_END, R_NDS32_RELAX_REGION_END},
2882 {BFD_RELOC_NDS32_MINUEND, R_NDS32_MINUEND},
2883 {BFD_RELOC_NDS32_SUBTRAHEND, R_NDS32_SUBTRAHEND},
2884 {BFD_RELOC_NDS32_EMPTY, R_NDS32_EMPTY},
2886 {BFD_RELOC_NDS32_DIFF8, R_NDS32_DIFF8},
2887 {BFD_RELOC_NDS32_DIFF16, R_NDS32_DIFF16},
2888 {BFD_RELOC_NDS32_DIFF32, R_NDS32_DIFF32},
2889 {BFD_RELOC_NDS32_DIFF_ULEB128, R_NDS32_DIFF_ULEB128},
2890 {BFD_RELOC_NDS32_25_ABS, R_NDS32_25_ABS_RELA},
2891 {BFD_RELOC_NDS32_DATA, R_NDS32_DATA},
2892 {BFD_RELOC_NDS32_TRAN, R_NDS32_TRAN},
2893 {BFD_RELOC_NDS32_17IFC_PCREL, R_NDS32_17IFC_PCREL_RELA},
2894 {BFD_RELOC_NDS32_10IFCU_PCREL, R_NDS32_10IFCU_PCREL_RELA},
2895 {BFD_RELOC_NDS32_TLS_LE_HI20, R_NDS32_TLS_LE_HI20},
2896 {BFD_RELOC_NDS32_TLS_LE_LO12, R_NDS32_TLS_LE_LO12},
2897 {BFD_RELOC_NDS32_TLS_LE_ADD, R_NDS32_TLS_LE_ADD},
2898 {BFD_RELOC_NDS32_TLS_LE_LS, R_NDS32_TLS_LE_LS},
2899 {BFD_RELOC_NDS32_TLS_IE_HI20, R_NDS32_TLS_IE_HI20},
2900 {BFD_RELOC_NDS32_TLS_IE_LO12S2, R_NDS32_TLS_IE_LO12S2},
2901 {BFD_RELOC_NDS32_TLS_TPOFF, R_NDS32_TLS_TPOFF},
2902 {BFD_RELOC_NDS32_TLS_LE_20, R_NDS32_TLS_LE_20},
2903 {BFD_RELOC_NDS32_TLS_LE_15S0, R_NDS32_TLS_LE_15S0},
2904 {BFD_RELOC_NDS32_TLS_LE_15S1, R_NDS32_TLS_LE_15S1},
2905 {BFD_RELOC_NDS32_TLS_LE_15S2, R_NDS32_TLS_LE_15S2},
2910 static reloc_howto_type *
2911 bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2916 for (i = 0; i < ARRAY_SIZE (nds32_elf_howto_table); i++)
2917 if (nds32_elf_howto_table[i].name != NULL
2918 && strcasecmp (nds32_elf_howto_table[i].name, r_name) == 0)
2919 return &nds32_elf_howto_table[i];
2921 for (i = 0; i < ARRAY_SIZE (nds32_elf_relax_howto_table); i++)
2922 if (nds32_elf_relax_howto_table[i].name != NULL
2923 && strcasecmp (nds32_elf_relax_howto_table[i].name, r_name) == 0)
2924 return &nds32_elf_relax_howto_table[i];
2929 static reloc_howto_type *
2930 bfd_elf32_bfd_reloc_type_table_lookup (enum elf_nds32_reloc_type code)
2932 if (code < R_NDS32_RELAX_ENTRY)
2934 BFD_ASSERT (code < ARRAY_SIZE (nds32_elf_howto_table));
2935 return &nds32_elf_howto_table[code];
2939 BFD_ASSERT ((size_t) (code - R_NDS32_RELAX_ENTRY)
2940 < ARRAY_SIZE (nds32_elf_relax_howto_table));
2941 return &nds32_elf_relax_howto_table[code - R_NDS32_RELAX_ENTRY];
2945 static reloc_howto_type *
2946 bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2947 bfd_reloc_code_real_type code)
2951 for (i = 0; i < ARRAY_SIZE (nds32_reloc_map); i++)
2953 if (nds32_reloc_map[i].bfd_reloc_val == code)
2954 return bfd_elf32_bfd_reloc_type_table_lookup
2955 (nds32_reloc_map[i].elf_reloc_val);
2961 /* Set the howto pointer for an NDS32 ELF reloc. */
2964 nds32_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2965 Elf_Internal_Rela *dst)
2967 enum elf_nds32_reloc_type r_type;
2969 r_type = ELF32_R_TYPE (dst->r_info);
2970 if (r_type > R_NDS32_GNU_VTENTRY)
2972 _bfd_error_handler (_("%B: invalid NDS32 reloc number: %d"), abfd, r_type);
2975 cache_ptr->howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type);
2979 nds32_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2980 Elf_Internal_Rela *dst)
2982 BFD_ASSERT ((ELF32_R_TYPE (dst->r_info) == R_NDS32_NONE)
2983 || ((ELF32_R_TYPE (dst->r_info) > R_NDS32_GNU_VTENTRY)
2984 && (ELF32_R_TYPE (dst->r_info) < R_NDS32_max)));
2985 cache_ptr->howto = bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (dst->r_info));
2988 /* Support for core dump NOTE sections.
2989 Reference to include/linux/elfcore.h in Linux. */
2992 nds32_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2997 switch (note->descsz)
3000 /* Linux/NDS32 32-bit, ABI1 */
3003 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
3006 elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24);
3014 /* Linux/NDS32 32-bit */
3017 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
3020 elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24);
3031 /* Make a ".reg" section. */
3032 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
3033 size, note->descpos + offset);
3037 nds32_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
3039 switch (note->descsz)
3044 /* __kernel_uid_t, __kernel_gid_t are short on NDS32 platform. */
3045 elf_tdata (abfd)->core->program =
3046 _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
3047 elf_tdata (abfd)->core->command =
3048 _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
3054 /* Note that for some reason, a spurious space is tacked
3055 onto the end of the args in some (at least one anyway)
3056 implementations, so strip it off if it exists. */
3058 char *command = elf_tdata (abfd)->core->command;
3059 int n = strlen (command);
3061 if (0 < n && command[n - 1] == ' ')
3062 command[n - 1] = '\0';
3068 /* Hook called by the linker routine which adds symbols from an object
3069 file. We must handle the special NDS32 section numbers here.
3070 We also keep watching for whether we need to create the sdata special
3074 nds32_elf_add_symbol_hook (bfd *abfd,
3075 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3076 Elf_Internal_Sym *sym,
3077 const char **namep ATTRIBUTE_UNUSED,
3078 flagword *flagsp ATTRIBUTE_UNUSED,
3079 asection **secp, bfd_vma *valp)
3081 switch (sym->st_shndx)
3084 /* Common symbols less than the GP size are automatically
3085 treated as SHN_MIPS_SCOMMON symbols. */
3086 if (sym->st_size > elf_gp_size (abfd)
3087 || ELF_ST_TYPE (sym->st_info) == STT_TLS)
3090 /* st_value is the alignemnt constraint.
3091 That might be its actual size if it is an array or structure. */
3092 switch (sym->st_value)
3095 *secp = bfd_make_section_old_way (abfd, ".scommon_b");
3098 *secp = bfd_make_section_old_way (abfd, ".scommon_h");
3101 *secp = bfd_make_section_old_way (abfd, ".scommon_w");
3104 *secp = bfd_make_section_old_way (abfd, ".scommon_d");
3110 (*secp)->flags |= SEC_IS_COMMON;
3111 *valp = sym->st_size;
3119 /* This function can figure out the best location for a base register to access
3120 data relative to this base register
3122 sda_d0: size of first DOUBLE WORD data section
3123 sda_w0: size of first WORD data section
3124 sda_h0: size of first HALF WORD data section
3125 sda_b : size of BYTE data section
3126 sda_hi: size of second HALF WORD data section
3127 sda_w1: size of second WORD data section
3128 sda_d1: size of second DOUBLE WORD data section
3130 offset (always positive) from the beginning of sda_d0 if OK
3131 a negative error value if fail
3133 these 7 sections have to be located back to back if exist
3134 a pass in 0 value for non-existing section */
3136 /* Due to the interpretation of simm15 field of load/store depending on
3137 data accessing size, the organization of base register relative data shall
3138 like the following figure
3139 -------------------------------------------
3140 | DOUBLE WORD sized data (range +/- 128K)
3141 -------------------------------------------
3142 | WORD sized data (range +/- 64K)
3143 -------------------------------------------
3144 | HALF WORD sized data (range +/- 32K)
3145 -------------------------------------------
3146 | BYTE sized data (range +/- 16K)
3147 -------------------------------------------
3148 | HALF WORD sized data (range +/- 32K)
3149 -------------------------------------------
3150 | WORD sized data (range +/- 64K)
3151 -------------------------------------------
3152 | DOUBLE WORD sized data (range +/- 128K)
3153 -------------------------------------------
3154 Its base register shall be set to access these data freely. */
3156 /* We have to figure out the SDA_BASE value, so that we can adjust the
3157 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
3158 BFD. If we can't find it, we're stuck. We cache it in the ELF
3159 target data. We don't need to adjust the symbol value for an
3160 external symbol if we are producing relocatable output. */
3162 static asection *sda_rela_sec = NULL;
3164 #define SDA_SECTION_NUM 10
3166 static bfd_reloc_status_type
3167 nds32_elf_final_sda_base (bfd *output_bfd, struct bfd_link_info *info,
3168 bfd_vma *psb, bfd_boolean add_symbol)
3171 struct elf_nds32_link_hash_table *table;
3172 struct bfd_link_hash_entry *h, *h2;
3173 long unsigned int total = 0;
3175 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
3176 if (!h || (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak))
3178 asection *first = NULL, *final = NULL, *temp;
3180 /* The first section must be 4-byte aligned to promise _SDA_BASE_ being
3181 4 byte-aligned. Therefore, it has to set the first section ".data"
3183 static const char sec_name[SDA_SECTION_NUM][10] =
3185 ".data", ".got", ".sdata_d", ".sdata_w", ".sdata_h", ".sdata_b",
3186 ".sbss_b", ".sbss_h", ".sbss_w", ".sbss_d"
3190 if (output_bfd->sections == NULL)
3192 *psb = elf_gp (output_bfd);
3193 return bfd_reloc_ok;
3196 /* Get the first and final section. */
3197 while (i < sizeof (sec_name) / sizeof (sec_name [0]))
3199 temp = bfd_get_section_by_name (output_bfd, sec_name[i]);
3200 if (temp && !first && (temp->size != 0 || temp->rawsize != 0))
3202 if (temp && (temp->size != 0 || temp->rawsize != 0))
3205 /* Summarize the sections in order to check if joining .bss. */
3206 if (temp && temp->size != 0)
3207 total += temp->size;
3208 else if (temp && temp->rawsize != 0)
3209 total += temp->rawsize;
3214 /* Check .bss size. */
3215 temp = bfd_get_section_by_name (output_bfd, ".bss");
3218 if (temp->size != 0)
3219 total += temp->size;
3220 else if (temp->rawsize != 0)
3221 total += temp->rawsize;
3223 if (total < 0x80000)
3225 if (!first && (temp->size != 0 || temp->rawsize != 0))
3227 if ((temp->size != 0 || temp->rawsize != 0))
3234 /* The middle of data region. */
3235 sda_base = final->vma / 2 + final->rawsize / 2 + first->vma / 2;
3237 /* Find the section sda_base located. */
3239 while (i < sizeof (sec_name) / sizeof (sec_name [0]))
3241 final = bfd_get_section_by_name (output_bfd, sec_name[i]);
3242 if (final && (final->size != 0 || final->rawsize != 0)
3243 && sda_base >= final->vma)
3254 /* There is not any data section in output bfd, and set _SDA_BASE_ in
3255 first output section. */
3256 first = output_bfd->sections;
3257 while (first && first->size == 0 && first->rawsize == 0)
3258 first = first->next;
3261 *psb = elf_gp (output_bfd);
3262 return bfd_reloc_ok;
3264 sda_base = first->vma + first->rawsize;
3267 sda_base -= first->vma;
3268 sda_base = sda_base & (~7);
3270 if (!_bfd_generic_link_add_one_symbol
3271 (info, output_bfd, "_SDA_BASE_", BSF_GLOBAL | BSF_WEAK, first,
3272 (bfd_vma) sda_base, (const char *) NULL, FALSE,
3273 get_elf_backend_data (output_bfd)->collect, &h))
3276 sda_rela_sec = first;
3278 table = nds32_elf_hash_table (info);
3279 relax_fp_as_gp = table->relax_fp_as_gp;
3282 h2 = bfd_link_hash_lookup (info->hash, FP_BASE_NAME,
3283 FALSE, FALSE, FALSE);
3284 /* Define a weak FP_BASE_NAME here to prevent the undefined symbol.
3285 And set FP equal to SDA_BASE to do relaxation for
3286 la $fp, _FP_BASE_. */
3287 if (!_bfd_generic_link_add_one_symbol
3288 (info, output_bfd, FP_BASE_NAME, BSF_GLOBAL | BSF_WEAK,
3289 first, (bfd_vma) sda_base, (const char *) NULL,
3290 FALSE, get_elf_backend_data (output_bfd)->collect, &h2))
3295 if (add_symbol == TRUE)
3300 elf_gp (output_bfd) = (h->u.def.value
3301 + h->u.def.section->output_section->vma
3302 + h->u.def.section->output_offset);
3306 (*_bfd_error_handler) (_("error: Can't find symbol: _SDA_BASE_."));
3307 return bfd_reloc_dangerous;
3311 *psb = h->u.def.value + h->u.def.section->output_section->vma
3312 + h->u.def.section->output_offset;
3313 return bfd_reloc_ok;
3317 /* Return size of a PLT entry. */
3318 #define elf_nds32_sizeof_plt(info) PLT_ENTRY_SIZE
3321 /* Create an entry in an nds32 ELF linker hash table. */
3323 static struct bfd_hash_entry *
3324 nds32_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3325 struct bfd_hash_table *table,
3328 struct elf_nds32_link_hash_entry *ret;
3330 ret = (struct elf_nds32_link_hash_entry *) entry;
3332 /* Allocate the structure if it has not already been allocated by a
3335 ret = (struct elf_nds32_link_hash_entry *)
3336 bfd_hash_allocate (table, sizeof (struct elf_nds32_link_hash_entry));
3339 return (struct bfd_hash_entry *) ret;
3341 /* Call the allocation method of the superclass. */
3342 ret = (struct elf_nds32_link_hash_entry *)
3343 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string);
3347 struct elf_nds32_link_hash_entry *eh;
3349 eh = (struct elf_nds32_link_hash_entry *) ret;
3350 eh->dyn_relocs = NULL;
3351 eh->tls_type = GOT_UNKNOWN;
3354 return (struct bfd_hash_entry *) ret;
3357 /* Create an nds32 ELF linker hash table. */
3359 static struct bfd_link_hash_table *
3360 nds32_elf_link_hash_table_create (bfd *abfd)
3362 struct elf_nds32_link_hash_table *ret;
3364 bfd_size_type amt = sizeof (struct elf_nds32_link_hash_table);
3366 ret = (struct elf_nds32_link_hash_table *) bfd_zmalloc (amt);
3371 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
3372 nds32_elf_link_hash_newfunc,
3373 sizeof (struct elf_nds32_link_hash_entry),
3381 ret->sgotplt = NULL;
3382 ret->srelgot = NULL;
3384 ret->srelplt = NULL;
3385 ret->sdynbss = NULL;
3386 ret->srelbss = NULL;
3387 ret->sym_ld_script = NULL;
3388 ret->ex9_export_file = NULL;
3389 ret->ex9_import_file = NULL;
3391 return &ret->root.root;
3394 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
3395 shortcuts to them in our hash table. */
3398 create_got_section (bfd *dynobj, struct bfd_link_info *info)
3400 struct elf_nds32_link_hash_table *htab;
3402 if (!_bfd_elf_create_got_section (dynobj, info))
3405 htab = nds32_elf_hash_table (info);
3406 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
3407 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
3408 if (!htab->sgot || !htab->sgotplt)
3411 /* _bfd_elf_create_got_section will create it for us. */
3412 htab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
3413 if (htab->srelgot == NULL
3414 || !bfd_set_section_flags (dynobj, htab->srelgot,
3415 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
3416 | SEC_IN_MEMORY | SEC_LINKER_CREATED
3418 || !bfd_set_section_alignment (dynobj, htab->srelgot, 2))
3424 /* Create dynamic sections when linking against a dynamic object. */
3427 nds32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3429 struct elf_nds32_link_hash_table *htab;
3430 flagword flags, pltflags;
3431 register asection *s;
3432 const struct elf_backend_data *bed;
3433 int ptralign = 2; /* 32-bit */
3435 bed = get_elf_backend_data (abfd);
3437 htab = nds32_elf_hash_table (info);
3439 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3440 .rel[a].bss sections. */
3442 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3443 | SEC_LINKER_CREATED);
3446 pltflags |= SEC_CODE;
3447 if (bed->plt_not_loaded)
3448 pltflags &= ~(SEC_LOAD | SEC_HAS_CONTENTS);
3449 if (bed->plt_readonly)
3450 pltflags |= SEC_READONLY;
3452 s = bfd_make_section (abfd, ".plt");
3455 || !bfd_set_section_flags (abfd, s, pltflags)
3456 || !bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3459 if (bed->want_plt_sym)
3461 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3463 struct bfd_link_hash_entry *bh = NULL;
3464 struct elf_link_hash_entry *h;
3466 if (!(_bfd_generic_link_add_one_symbol
3467 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3468 (bfd_vma) 0, (const char *) NULL, FALSE,
3469 get_elf_backend_data (abfd)->collect, &bh)))
3472 h = (struct elf_link_hash_entry *) bh;
3474 h->type = STT_OBJECT;
3476 if (bfd_link_pic (info) && !bfd_elf_link_record_dynamic_symbol (info, h))
3480 s = bfd_make_section (abfd,
3481 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt");
3484 || !bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3485 || !bfd_set_section_alignment (abfd, s, ptralign))
3488 if (htab->sgot == NULL && !create_got_section (abfd, info))
3492 const char *secname;
3497 for (sec = abfd->sections; sec; sec = sec->next)
3499 secflags = bfd_get_section_flags (abfd, sec);
3500 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
3501 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
3503 secname = bfd_get_section_name (abfd, sec);
3504 relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6);
3505 strcpy (relname, ".rela");
3506 strcat (relname, secname);
3507 if (bfd_get_section_by_name (abfd, secname))
3509 s = bfd_make_section (abfd, relname);
3511 || !bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3512 || !bfd_set_section_alignment (abfd, s, ptralign))
3517 if (bed->want_dynbss)
3519 /* The .dynbss section is a place to put symbols which are defined
3520 by dynamic objects, are referenced by regular objects, and are
3521 not functions. We must allocate space for them in the process
3522 image and use a R_*_COPY reloc to tell the dynamic linker to
3523 initialize them at run time. The linker script puts the .dynbss
3524 section into the .bss section of the final image. */
3525 s = bfd_make_section (abfd, ".dynbss");
3528 || !bfd_set_section_flags (abfd, s, SEC_ALLOC | SEC_LINKER_CREATED))
3530 /* The .rel[a].bss section holds copy relocs. This section is not
3531 normally needed. We need to create it here, though, so that the
3532 linker will map it to an output section. We can't just create it
3533 only if we need it, because we will not know whether we need it
3534 until we have seen all the input files, and the first time the
3535 main linker code calls BFD after examining all the input files
3536 (size_dynamic_sections) the input sections have already been
3537 mapped to the output sections. If the section turns out not to
3538 be needed, we can discard it later. We will never need this
3539 section when generating a shared object, since they do not use
3541 if (!bfd_link_pic (info))
3543 s = bfd_make_section (abfd, (bed->default_use_rela_p
3544 ? ".rela.bss" : ".rel.bss"));
3547 || !bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3548 || !bfd_set_section_alignment (abfd, s, ptralign))
3556 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3558 nds32_elf_copy_indirect_symbol (struct bfd_link_info *info,
3559 struct elf_link_hash_entry *dir,
3560 struct elf_link_hash_entry *ind)
3562 struct elf_nds32_link_hash_entry *edir, *eind;
3564 edir = (struct elf_nds32_link_hash_entry *) dir;
3565 eind = (struct elf_nds32_link_hash_entry *) ind;
3567 if (eind->dyn_relocs != NULL)
3569 if (edir->dyn_relocs != NULL)
3571 struct elf_nds32_dyn_relocs **pp;
3572 struct elf_nds32_dyn_relocs *p;
3574 if (ind->root.type == bfd_link_hash_indirect)
3577 /* Add reloc counts against the weak sym to the strong sym
3578 list. Merge any entries against the same section. */
3579 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
3581 struct elf_nds32_dyn_relocs *q;
3583 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3584 if (q->sec == p->sec)
3586 q->pc_count += p->pc_count;
3587 q->count += p->count;
3594 *pp = edir->dyn_relocs;
3597 edir->dyn_relocs = eind->dyn_relocs;
3598 eind->dyn_relocs = NULL;
3601 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
3605 /* Adjust a symbol defined by a dynamic object and referenced by a
3606 regular object. The current definition is in some section of the
3607 dynamic object, but we're not including those sections. We have to
3608 change the definition to something the rest of the link can
3612 nds32_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
3613 struct elf_link_hash_entry *h)
3615 struct elf_nds32_link_hash_table *htab;
3616 struct elf_nds32_link_hash_entry *eh;
3617 struct elf_nds32_dyn_relocs *p;
3620 unsigned int power_of_two;
3622 dynobj = elf_hash_table (info)->dynobj;
3624 /* Make sure we know what is going on here. */
3625 BFD_ASSERT (dynobj != NULL
3627 || h->u.weakdef != NULL
3628 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
3631 /* If this is a function, put it in the procedure linkage table. We
3632 will fill in the contents of the procedure linkage table later,
3633 when we know the address of the .got section. */
3634 if (h->type == STT_FUNC || h->needs_plt)
3636 if (!bfd_link_pic (info)
3639 && h->root.type != bfd_link_hash_undefweak
3640 && h->root.type != bfd_link_hash_undefined)
3642 /* This case can occur if we saw a PLT reloc in an input
3643 file, but the symbol was never referred to by a dynamic
3644 object. In such a case, we don't actually need to build
3645 a procedure linkage table, and we can just do a PCREL
3647 h->plt.offset = (bfd_vma) - 1;
3654 h->plt.offset = (bfd_vma) - 1;
3656 /* If this is a weak symbol, and there is a real definition, the
3657 processor independent code will have arranged for us to see the
3658 real definition first, and we can just use the same value. */
3659 if (h->u.weakdef != NULL)
3661 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3662 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3663 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3664 h->root.u.def.value = h->u.weakdef->root.u.def.value;
3668 /* This is a reference to a symbol defined by a dynamic object which
3669 is not a function. */
3671 /* If we are creating a shared library, we must presume that the
3672 only references to the symbol are via the global offset table.
3673 For such cases we need not do anything here; the relocations will
3674 be handled correctly by relocate_section. */
3675 if (bfd_link_pic (info))
3678 /* If there are no references to this symbol that do not use the
3679 GOT, we don't need to generate a copy reloc. */
3680 if (!h->non_got_ref)
3683 /* If -z nocopyreloc was given, we won't generate them either. */
3684 if (info->nocopyreloc)
3690 eh = (struct elf_nds32_link_hash_entry *) h;
3691 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3693 s = p->sec->output_section;
3694 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
3698 /* If we didn't find any dynamic relocs in sections which needs the
3699 copy reloc, then we'll be keeping the dynamic relocs and avoiding
3707 /* We must allocate the symbol in our .dynbss section, which will
3708 become part of the .bss section of the executable. There will be
3709 an entry for this symbol in the .dynsym section. The dynamic
3710 object will contain position independent code, so all references
3711 from the dynamic object to this symbol will go through the global
3712 offset table. The dynamic linker will use the .dynsym entry to
3713 determine the address it must put in the global offset table, so
3714 both the dynamic object and the regular object will refer to the
3715 same memory location for the variable. */
3717 htab = nds32_elf_hash_table (info);
3719 BFD_ASSERT (s != NULL);
3721 /* We must generate a R_NDS32_COPY reloc to tell the dynamic linker
3722 to copy the initial value out of the dynamic object and into the
3723 runtime process image. We need to remember the offset into the
3724 .rela.bss section we are going to use. */
3725 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
3729 srel = htab->srelbss;
3730 BFD_ASSERT (srel != NULL);
3731 srel->size += sizeof (Elf32_External_Rela);
3735 /* We need to figure out the alignment required for this symbol. I
3736 have no idea how ELF linkers handle this. */
3737 power_of_two = bfd_log2 (h->size);
3738 if (power_of_two > 3)
3741 /* Apply the required alignment. */
3742 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
3743 if (power_of_two > bfd_get_section_alignment (dynobj, s))
3745 if (!bfd_set_section_alignment (dynobj, s, power_of_two))
3749 /* Define the symbol as being at this point in the section. */
3750 h->root.u.def.section = s;
3751 h->root.u.def.value = s->size;
3753 /* Increment the section size to make room for the symbol. */
3759 /* Allocate space in .plt, .got and associated reloc sections for
3763 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3765 struct bfd_link_info *info;
3766 struct elf_nds32_link_hash_table *htab;
3767 struct elf_nds32_link_hash_entry *eh;
3768 struct elf_nds32_dyn_relocs *p;
3770 if (h->root.type == bfd_link_hash_indirect)
3773 if (h->root.type == bfd_link_hash_warning)
3774 /* When warning symbols are created, they **replace** the "real"
3775 entry in the hash table, thus we never get to see the real
3776 symbol in a hash traversal. So look at it now. */
3777 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3779 info = (struct bfd_link_info *) inf;
3780 htab = nds32_elf_hash_table (info);
3782 eh = (struct elf_nds32_link_hash_entry *) h;
3784 if (htab->root.dynamic_sections_created && h->plt.refcount > 0)
3786 /* Make sure this symbol is output as a dynamic symbol.
3787 Undefined weak syms won't yet be marked as dynamic. */
3788 if (h->dynindx == -1 && !h->forced_local)
3790 if (!bfd_elf_link_record_dynamic_symbol (info, h))
3794 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
3796 asection *s = htab->splt;
3798 /* If this is the first .plt entry, make room for the special
3801 s->size += PLT_ENTRY_SIZE;
3803 h->plt.offset = s->size;
3805 /* If this symbol is not defined in a regular file, and we are
3806 not generating a shared library, then set the symbol to this
3807 location in the .plt. This is required to make function
3808 pointers compare as equal between the normal executable and
3809 the shared library. */
3810 if (!bfd_link_pic (info) && !h->def_regular)
3812 h->root.u.def.section = s;
3813 h->root.u.def.value = h->plt.offset;
3816 /* Make room for this entry. */
3817 s->size += PLT_ENTRY_SIZE;
3819 /* We also need to make an entry in the .got.plt section, which
3820 will be placed in the .got section by the linker script. */
3821 htab->sgotplt->size += 4;
3823 /* We also need to make an entry in the .rel.plt section. */
3824 htab->srelplt->size += sizeof (Elf32_External_Rela);
3828 h->plt.offset = (bfd_vma) - 1;
3834 h->plt.offset = (bfd_vma) - 1;
3838 if (h->got.refcount > 0)
3842 int tls_type = elf32_nds32_hash_entry (h)->tls_type;
3844 /* Make sure this symbol is output as a dynamic symbol.
3845 Undefined weak syms won't yet be marked as dynamic. */
3846 if (h->dynindx == -1 && !h->forced_local)
3848 if (!bfd_elf_link_record_dynamic_symbol (info, h))
3853 h->got.offset = s->size;
3855 if (tls_type == GOT_UNKNOWN)
3857 else if (tls_type == GOT_NORMAL
3858 || tls_type == GOT_TLS_IE)
3859 /* Need a GOT slot. */
3862 dyn = htab->root.dynamic_sections_created;
3863 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
3864 htab->srelgot->size += sizeof (Elf32_External_Rela);
3867 h->got.offset = (bfd_vma) - 1;
3869 if (eh->dyn_relocs == NULL)
3872 /* In the shared -Bsymbolic case, discard space allocated for
3873 dynamic pc-relative relocs against symbols which turn out to be
3874 defined in regular objects. For the normal shared case, discard
3875 space for pc-relative relocs that have become local due to symbol
3876 visibility changes. */
3878 if (bfd_link_pic (info))
3880 if (h->def_regular && (h->forced_local || info->symbolic))
3882 struct elf_nds32_dyn_relocs **pp;
3884 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
3886 p->count -= p->pc_count;
3897 /* For the non-shared case, discard space for relocs against
3898 symbols which turn out to need copy relocs or are not dynamic. */
3903 || (htab->root.dynamic_sections_created
3904 && (h->root.type == bfd_link_hash_undefweak
3905 || h->root.type == bfd_link_hash_undefined))))
3907 /* Make sure this symbol is output as a dynamic symbol.
3908 Undefined weak syms won't yet be marked as dynamic. */
3909 if (h->dynindx == -1 && !h->forced_local)
3911 if (!bfd_elf_link_record_dynamic_symbol (info, h))
3915 /* If that succeeded, we know we'll be keeping all the
3917 if (h->dynindx != -1)
3921 eh->dyn_relocs = NULL;
3926 /* Finally, allocate space. */
3927 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3929 asection *sreloc = elf_section_data (p->sec)->sreloc;
3930 sreloc->size += p->count * sizeof (Elf32_External_Rela);
3936 /* Find any dynamic relocs that apply to read-only sections. */
3939 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3941 struct elf_nds32_link_hash_entry *eh;
3942 struct elf_nds32_dyn_relocs *p;
3944 if (h->root.type == bfd_link_hash_warning)
3945 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3947 eh = (struct elf_nds32_link_hash_entry *) h;
3948 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3950 asection *s = p->sec->output_section;
3952 if (s != NULL && (s->flags & SEC_READONLY) != 0)
3954 struct bfd_link_info *info = (struct bfd_link_info *) inf;
3956 info->flags |= DF_TEXTREL;
3958 /* Not an error, just cut short the traversal. */
3965 /* Set the sizes of the dynamic sections. */
3968 nds32_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3969 struct bfd_link_info *info)
3971 struct elf_nds32_link_hash_table *htab;
3977 htab = nds32_elf_hash_table (info);
3978 dynobj = htab->root.dynobj;
3979 BFD_ASSERT (dynobj != NULL);
3981 if (htab->root.dynamic_sections_created)
3983 /* Set the contents of the .interp section to the interpreter. */
3984 if (!bfd_link_pic (info) && !info->nointerp)
3986 s = bfd_get_section_by_name (dynobj, ".interp");
3987 BFD_ASSERT (s != NULL);
3988 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3989 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3993 /* Set up .got offsets for local syms, and space for local dynamic
3995 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
3997 bfd_signed_vma *local_got;
3998 bfd_signed_vma *end_local_got;
3999 bfd_size_type locsymcount;
4000 Elf_Internal_Shdr *symtab_hdr;
4003 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
4006 for (s = ibfd->sections; s != NULL; s = s->next)
4008 struct elf_nds32_dyn_relocs *p;
4010 for (p = ((struct elf_nds32_dyn_relocs *)
4011 elf_section_data (s)->local_dynrel);
4012 p != NULL; p = p->next)
4014 if (!bfd_is_abs_section (p->sec)
4015 && bfd_is_abs_section (p->sec->output_section))
4017 /* Input section has been discarded, either because
4018 it is a copy of a linkonce section or due to
4019 linker script /DISCARD/, so we'll be discarding
4022 else if (p->count != 0)
4024 srel = elf_section_data (p->sec)->sreloc;
4025 srel->size += p->count * sizeof (Elf32_External_Rela);
4026 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
4027 info->flags |= DF_TEXTREL;
4032 local_got = elf_local_got_refcounts (ibfd);
4036 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4037 locsymcount = symtab_hdr->sh_info;
4038 end_local_got = local_got + locsymcount;
4040 srel = htab->srelgot;
4041 for (; local_got < end_local_got; ++local_got)
4045 *local_got = s->size;
4047 if (bfd_link_pic (info))
4048 srel->size += sizeof (Elf32_External_Rela);
4051 *local_got = (bfd_vma) - 1;
4055 /* Allocate global sym .plt and .got entries, and space for global
4056 sym dynamic relocs. */
4057 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, (void *) info);
4059 /* We now have determined the sizes of the various dynamic sections.
4060 Allocate memory for them. */
4062 for (s = dynobj->sections; s != NULL; s = s->next)
4064 if ((s->flags & SEC_LINKER_CREATED) == 0)
4067 if (s == htab->splt)
4069 /* Strip this section if we don't need it; see the
4072 else if (s == htab->sgot)
4074 got_size += s->size;
4076 else if (s == htab->sgotplt)
4078 got_size += s->size;
4080 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
4082 if (s->size != 0 && s != htab->srelplt)
4085 /* We use the reloc_count field as a counter if we need
4086 to copy relocs into the output file. */
4091 /* It's not one of our sections, so don't allocate space. */
4097 /* If we don't need this section, strip it from the
4098 output file. This is mostly to handle .rela.bss and
4099 .rela.plt. We must create both sections in
4100 create_dynamic_sections, because they must be created
4101 before the linker maps input sections to output
4102 sections. The linker does that before
4103 adjust_dynamic_symbol is called, and it is that
4104 function which decides whether anything needs to go
4105 into these sections. */
4106 s->flags |= SEC_EXCLUDE;
4110 /* Allocate memory for the section contents. We use bfd_zalloc
4111 here in case unused entries are not reclaimed before the
4112 section's contents are written out. This should not happen,
4113 but this way if it does, we get a R_NDS32_NONE reloc instead
4115 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
4116 if (s->contents == NULL)
4121 if (htab->root.dynamic_sections_created)
4123 /* Add some entries to the .dynamic section. We fill in the
4124 values later, in nds32_elf_finish_dynamic_sections, but we
4125 must add the entries now so that we get the correct size for
4126 the .dynamic section. The DT_DEBUG entry is filled in by the
4127 dynamic linker and used by the debugger. */
4128 #define add_dynamic_entry(TAG, VAL) \
4129 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
4131 if (!bfd_link_pic (info))
4133 if (!add_dynamic_entry (DT_DEBUG, 0))
4137 if (htab->splt->size != 0)
4139 if (!add_dynamic_entry (DT_PLTGOT, 0)
4140 || !add_dynamic_entry (DT_PLTRELSZ, 0)
4141 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
4142 || !add_dynamic_entry (DT_JMPREL, 0))
4148 if (!add_dynamic_entry (DT_RELA, 0)
4149 || !add_dynamic_entry (DT_RELASZ, 0)
4150 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
4153 /* If any dynamic relocs apply to a read-only section,
4154 then we need a DT_TEXTREL entry. */
4155 if ((info->flags & DF_TEXTREL) == 0)
4156 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
4159 if ((info->flags & DF_TEXTREL) != 0)
4161 if (!add_dynamic_entry (DT_TEXTREL, 0))
4166 #undef add_dynamic_entry
4171 static bfd_reloc_status_type
4172 nds32_relocate_contents (reloc_howto_type *howto, bfd *input_bfd,
4173 bfd_vma relocation, bfd_byte *location)
4177 bfd_reloc_status_type flag;
4178 unsigned int rightshift = howto->rightshift;
4179 unsigned int bitpos = howto->bitpos;
4181 /* If the size is negative, negate RELOCATION. This isn't very
4183 if (howto->size < 0)
4184 relocation = -relocation;
4186 /* Get the value we are going to relocate. */
4187 size = bfd_get_reloc_size (howto);
4194 return bfd_reloc_ok;
4196 x = bfd_getb16 (location);
4199 x = bfd_getb32 (location);
4203 /* Check for overflow. FIXME: We may drop bits during the addition
4204 which we don't check for. We must either check at every single
4205 operation, which would be tedious, or we must do the computations
4206 in a type larger than bfd_vma, which would be inefficient. */
4207 flag = bfd_reloc_ok;
4208 if (howto->complain_on_overflow != complain_overflow_dont)
4210 bfd_vma addrmask, fieldmask, signmask, ss;
4213 /* Get the values to be added together. For signed and unsigned
4214 relocations, we assume that all values should be truncated to
4215 the size of an address. For bitfields, all the bits matter.
4216 See also bfd_check_overflow. */
4217 fieldmask = N_ONES (howto->bitsize);
4218 signmask = ~fieldmask;
4219 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
4220 a = (relocation & addrmask) >> rightshift;
4221 b = (x & howto->src_mask & addrmask) >> bitpos;
4223 switch (howto->complain_on_overflow)
4225 case complain_overflow_signed:
4226 /* If any sign bits are set, all sign bits must be set.
4227 That is, A must be a valid negative address after
4229 signmask = ~(fieldmask >> 1);
4232 case complain_overflow_bitfield:
4233 /* Much like the signed check, but for a field one bit
4234 wider. We allow a bitfield to represent numbers in the
4235 range -2**n to 2**n-1, where n is the number of bits in the
4236 field. Note that when bfd_vma is 32 bits, a 32-bit reloc
4237 can't overflow, which is exactly what we want. */
4239 if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
4240 flag = bfd_reloc_overflow;
4242 /* We only need this next bit of code if the sign bit of B
4243 is below the sign bit of A. This would only happen if
4244 SRC_MASK had fewer bits than BITSIZE. Note that if
4245 SRC_MASK has more bits than BITSIZE, we can get into
4246 trouble; we would need to verify that B is in range, as
4247 we do for A above. */
4248 ss = ((~howto->src_mask) >> 1) & howto->src_mask;
4251 /* Set all the bits above the sign bit. */
4254 /* Now we can do the addition. */
4257 /* See if the result has the correct sign. Bits above the
4258 sign bit are junk now; ignore them. If the sum is
4259 positive, make sure we did not have all negative inputs;
4260 if the sum is negative, make sure we did not have all
4261 positive inputs. The test below looks only at the sign
4262 bits, and it really just
4263 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
4265 We mask with addrmask here to explicitly allow an address
4266 wrap-around. The Linux kernel relies on it, and it is
4267 the only way to write assembler code which can run when
4268 loaded at a location 0x80000000 away from the location at
4269 which it is linked. */
4270 if (((~(a ^ b)) & (a ^ sum)) & signmask & addrmask)
4271 flag = bfd_reloc_overflow;
4275 case complain_overflow_unsigned:
4276 /* Checking for an unsigned overflow is relatively easy:
4277 trim the addresses and add, and trim the result as well.
4278 Overflow is normally indicated when the result does not
4279 fit in the field. However, we also need to consider the
4280 case when, e.g., fieldmask is 0x7fffffff or smaller, an
4281 input is 0x80000000, and bfd_vma is only 32 bits; then we
4282 will get sum == 0, but there is an overflow, since the
4283 inputs did not fit in the field. Instead of doing a
4284 separate test, we can check for this by or-ing in the
4285 operands when testing for the sum overflowing its final
4287 sum = (a + b) & addrmask;
4288 if ((a | b | sum) & signmask)
4289 flag = bfd_reloc_overflow;
4297 /* Put RELOCATION in the right bits. */
4298 relocation >>= (bfd_vma) rightshift;
4299 relocation <<= (bfd_vma) bitpos;
4301 /* Add RELOCATION to the right bits of X. */
4303 Because the relaxation may generate duplicate relocation at one address,
4304 an addition to immediate in the instruction may cause the relocation added
4306 This bug should be fixed in assembler, but a check is also needed here. */
4307 if (howto->partial_inplace)
4308 x = ((x & ~howto->dst_mask)
4309 | (((x & howto->src_mask) + relocation) & howto->dst_mask));
4311 x = ((x & ~howto->dst_mask) | ((relocation) & howto->dst_mask));
4314 /* Put the relocated value back in the object file. */
4324 bfd_putb16 (x, location);
4327 bfd_putb32 (x, location);
4334 static bfd_reloc_status_type
4335 nds32_elf_final_link_relocate (reloc_howto_type *howto, bfd *input_bfd,
4336 asection *input_section, bfd_byte *contents,
4337 bfd_vma address, bfd_vma value, bfd_vma addend)
4341 /* Sanity check the address. */
4342 if (address > bfd_get_section_limit (input_bfd, input_section))
4343 return bfd_reloc_outofrange;
4345 /* This function assumes that we are dealing with a basic relocation
4346 against a symbol. We want to compute the value of the symbol to
4347 relocate to. This is just VALUE, the value of the symbol, plus
4348 ADDEND, any addend associated with the reloc. */
4349 relocation = value + addend;
4351 /* If the relocation is PC relative, we want to set RELOCATION to
4352 the distance between the symbol (currently in RELOCATION) and the
4353 location we are relocating. Some targets (e.g., i386-aout)
4354 arrange for the contents of the section to be the negative of the
4355 offset of the location within the section; for such targets
4356 pcrel_offset is FALSE. Other targets (e.g., m88kbcs or ELF)
4357 simply leave the contents of the section as zero; for such
4358 targets pcrel_offset is TRUE. If pcrel_offset is FALSE we do not
4359 need to subtract out the offset of the location within the
4360 section (which is just ADDRESS). */
4361 if (howto->pc_relative)
4363 relocation -= (input_section->output_section->vma
4364 + input_section->output_offset);
4365 if (howto->pcrel_offset)
4366 relocation -= address;
4369 return nds32_relocate_contents (howto, input_bfd, relocation,
4370 contents + address);
4374 nds32_elf_output_symbol_hook (struct bfd_link_info *info,
4376 Elf_Internal_Sym *elfsym ATTRIBUTE_UNUSED,
4377 asection *input_sec,
4378 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
4381 FILE *sym_ld_script = NULL;
4382 struct elf_nds32_link_hash_table *table;
4384 table = nds32_elf_hash_table (info);
4385 sym_ld_script = table->sym_ld_script;
4389 if (!h || !name || *name == '\0')
4392 if (input_sec->flags & SEC_EXCLUDE)
4395 if (!check_start_export_sym)
4397 fprintf (sym_ld_script, "SECTIONS\n{\n");
4398 check_start_export_sym = 1;
4401 if (h->root.type == bfd_link_hash_defined
4402 || h->root.type == bfd_link_hash_defweak)
4404 if (!h->root.u.def.section->output_section)
4407 if (bfd_is_const_section (input_sec))
4408 source = input_sec->name;
4410 source = input_sec->owner->filename;
4412 fprintf (sym_ld_script, "\t%s = 0x%08lx;\t /* %s */\n",
4413 h->root.root.string,
4414 (long) (h->root.u.def.value
4415 + h->root.u.def.section->output_section->vma
4416 + h->root.u.def.section->output_offset), source);
4422 /* Relocate an NDS32/D ELF section.
4423 There is some attempt to make this function usable for many architectures,
4424 both for RELA and REL type relocs, if only to serve as a learning tool.
4426 The RELOCATE_SECTION function is called by the new ELF backend linker
4427 to handle the relocations for a section.
4429 The relocs are always passed as Rela structures; if the section
4430 actually uses Rel structures, the r_addend field will always be
4433 This function is responsible for adjust the section contents as
4434 necessary, and (if using Rela relocs and generating a
4435 relocatable output file) adjusting the reloc addend as
4438 This function does not have to worry about setting the reloc
4439 address or the reloc symbol index.
4441 LOCAL_SYMS is a pointer to the swapped in local symbols.
4443 LOCAL_SECTIONS is an array giving the section in the input file
4444 corresponding to the st_shndx field of each local symbol.
4446 The global hash table entry for the global symbols can be found
4447 via elf_sym_hashes (input_bfd).
4449 When generating relocatable output, this function must handle
4450 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
4451 going to be the section symbol corresponding to the output
4452 section, which means that the addend must be adjusted
4456 dtpoff_base (struct bfd_link_info *info)
4458 /* If tls_sec is NULL, we should have signalled an error already. */
4459 if (elf_hash_table (info)->tls_sec == NULL)
4461 return elf_hash_table (info)->tls_sec->vma;
4465 nds32_elf_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED,
4466 struct bfd_link_info * info,
4468 asection * input_section,
4469 bfd_byte * contents,
4470 Elf_Internal_Rela * relocs,
4471 Elf_Internal_Sym * local_syms,
4472 asection ** local_sections)
4474 Elf_Internal_Shdr *symtab_hdr;
4475 struct elf_link_hash_entry **sym_hashes;
4476 Elf_Internal_Rela *rel, *relend;
4477 bfd_boolean ret = TRUE; /* Assume success. */
4479 bfd_reloc_status_type r;
4480 const char *errmsg = NULL;
4482 struct elf_nds32_link_hash_table *htab;
4484 bfd_vma *local_got_offsets;
4485 asection *sgot, *splt, *sreloc;
4486 bfd_vma high_address;
4487 struct elf_nds32_link_hash_table *table;
4488 int eliminate_gc_relocs;
4489 bfd_vma fpbase_addr;
4491 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
4492 sym_hashes = elf_sym_hashes (input_bfd);
4493 htab = nds32_elf_hash_table (info);
4494 high_address = bfd_get_section_limit (input_bfd, input_section);
4496 dynobj = htab->root.dynobj;
4497 local_got_offsets = elf_local_got_offsets (input_bfd);
4504 relend = relocs + input_section->reloc_count;
4506 table = nds32_elf_hash_table (info);
4507 eliminate_gc_relocs = table->eliminate_gc_relocs;
4508 /* By this time, we can adjust the value of _SDA_BASE_. */
4509 if ((!bfd_link_relocatable (info)))
4511 is_SDA_BASE_set = 1;
4512 r = nds32_elf_final_sda_base (output_bfd, info, &gp, TRUE);
4513 if (r != bfd_reloc_ok)
4517 if (is_ITB_BASE_set == 0)
4519 /* Set the _ITB_BASE_. */
4520 if (!nds32_elf_ex9_itb_base (info))
4522 (*_bfd_error_handler) (_("%B: error: Cannot set _ITB_BASE_"),
4524 bfd_set_error (bfd_error_bad_value);
4528 if (table->target_optimize & NDS32_RELAX_JUMP_IFC_ON)
4529 if (!nds32_elf_ifc_reloc ())
4530 (*_bfd_error_handler) (_("error: IFC relocation error."));
4532 /* Relocation for .ex9.itable. */
4533 if (table->target_optimize & NDS32_RELAX_EX9_ON
4534 || (table->ex9_import_file && table->update_ex9_table))
4535 nds32_elf_ex9_reloc_jmp (info);
4537 /* Use gp as fp to prevent truncated fit. Because in relaxation time
4538 the fp value is set as gp, and it has be reverted for instruction
4540 fpbase_addr = elf_gp (output_bfd);
4542 for (rel = relocs; rel < relend; rel++)
4544 enum elf_nds32_reloc_type r_type;
4545 reloc_howto_type *howto = NULL;
4546 unsigned long r_symndx;
4547 struct elf_link_hash_entry *h = NULL;
4548 Elf_Internal_Sym *sym = NULL;
4552 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
4553 ensure it's zero (we use REL relocs, not RELA). Therefore this
4554 should be assigning zero to `addend', but for clarity we use
4557 bfd_vma addend = rel->r_addend;
4558 bfd_vma offset = rel->r_offset;
4560 r_type = ELF32_R_TYPE (rel->r_info);
4561 if (r_type >= R_NDS32_max)
4563 (*_bfd_error_handler) (_("%B: error: unknown relocation type %d."),
4565 bfd_set_error (bfd_error_bad_value);
4570 if (r_type == R_NDS32_GNU_VTENTRY
4571 || r_type == R_NDS32_GNU_VTINHERIT
4572 || r_type == R_NDS32_NONE
4573 || r_type == R_NDS32_RELA_GNU_VTENTRY
4574 || r_type == R_NDS32_RELA_GNU_VTINHERIT
4575 || (r_type >= R_NDS32_INSN16 && r_type <= R_NDS32_25_FIXED_RELA)
4576 || r_type == R_NDS32_DATA
4577 || r_type == R_NDS32_TRAN
4578 || (r_type >= R_NDS32_LONGCALL4 && r_type <= R_NDS32_LONGJUMP7))
4581 /* If we enter the fp-as-gp region. Resolve the address
4583 if (ELF32_R_TYPE (rel->r_info) == R_NDS32_RELAX_REGION_BEGIN
4584 && (rel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG))
4588 /* Distance to relocation of best fp-base is encoded in R_SYM. */
4589 dist = rel->r_addend >> 16;
4590 fpbase_addr = calculate_memory_address (input_bfd, rel + dist,
4591 local_syms, symtab_hdr);
4593 else if (ELF32_R_TYPE (rel->r_info) == R_NDS32_RELAX_REGION_END
4594 && (rel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG))
4596 fpbase_addr = elf_gp (output_bfd);
4599 if (((r_type >= R_NDS32_DWARF2_OP1_RELA
4600 && r_type <= R_NDS32_DWARF2_LEB_RELA)
4601 || r_type >= R_NDS32_RELAX_ENTRY) && !bfd_link_relocatable (info))
4604 howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type);
4605 r_symndx = ELF32_R_SYM (rel->r_info);
4607 /* This is a final link. */
4612 if (r_symndx < symtab_hdr->sh_info)
4615 sym = local_syms + r_symndx;
4616 sec = local_sections[r_symndx];
4618 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
4619 addend = rel->r_addend;
4623 /* External symbol. */
4624 bfd_boolean warned, ignored, unresolved_reloc;
4625 int symndx = r_symndx - symtab_hdr->sh_info;
4627 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
4628 r_symndx, symtab_hdr, sym_hashes, h, sec,
4629 relocation, unresolved_reloc, warned,
4632 /* la $fp, _FP_BASE_ is per-function (region).
4633 Handle it specially. */
4634 switch ((int) r_type)
4636 case R_NDS32_SDA19S0_RELA:
4637 case R_NDS32_SDA15S0_RELA:
4638 case R_NDS32_20_RELA:
4639 if (strcmp (elf_sym_hashes (input_bfd)[symndx]->root.root.string,
4642 relocation = fpbase_addr;
4649 if (bfd_link_relocatable (info))
4651 /* This is a relocatable link. We don't have to change
4652 anything, unless the reloc is against a section symbol,
4653 in which case we have to adjust according to where the
4654 section symbol winds up in the output section. */
4655 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
4656 rel->r_addend += sec->output_offset + sym->st_value;
4661 /* Sanity check the address. */
4662 if (offset > high_address)
4664 r = bfd_reloc_outofrange;
4668 if ((r_type >= R_NDS32_DWARF2_OP1_RELA
4669 && r_type <= R_NDS32_DWARF2_LEB_RELA)
4670 || r_type >= R_NDS32_RELAX_ENTRY)
4673 switch ((int) r_type)
4675 case R_NDS32_GOTOFF:
4676 /* Relocation is relative to the start of the global offset
4677 table (for ld24 rx, #uimm24), e.g. access at label+addend
4679 ld24 rx. #label@GOTOFF + addend
4681 case R_NDS32_GOTOFF_HI20:
4682 case R_NDS32_GOTOFF_LO12:
4683 case R_NDS32_GOTOFF_LO15:
4684 case R_NDS32_GOTOFF_LO19:
4685 BFD_ASSERT (sgot != NULL);
4687 relocation -= elf_gp (output_bfd);
4690 case R_NDS32_9_PLTREL:
4691 case R_NDS32_25_PLTREL:
4692 /* Relocation is to the entry for this symbol in the
4693 procedure linkage table. */
4695 /* The native assembler will generate a 25_PLTREL reloc
4696 for a local symbol if you assemble a call from one
4697 section to another when using -K pic. */
4701 if (h->forced_local)
4704 /* We didn't make a PLT entry for this symbol. This
4705 happens when statically linking PIC code, or when
4706 using -Bsymbolic. */
4707 if (h->plt.offset == (bfd_vma) - 1)
4710 relocation = (splt->output_section->vma
4711 + splt->output_offset + h->plt.offset);
4714 case R_NDS32_PLT_GOTREL_HI20:
4715 case R_NDS32_PLT_GOTREL_LO12:
4716 case R_NDS32_PLT_GOTREL_LO15:
4717 case R_NDS32_PLT_GOTREL_LO19:
4718 case R_NDS32_PLT_GOTREL_LO20:
4719 if (h == NULL || h->forced_local || h->plt.offset == (bfd_vma) - 1)
4721 /* We didn't make a PLT entry for this symbol. This
4722 happens when statically linking PIC code, or when
4723 using -Bsymbolic. */
4724 relocation -= elf_gp (output_bfd);
4728 relocation = (splt->output_section->vma
4729 + splt->output_offset + h->plt.offset);
4731 relocation -= elf_gp (output_bfd);
4734 case R_NDS32_PLTREL_HI20:
4735 case R_NDS32_PLTREL_LO12:
4737 /* Relocation is to the entry for this symbol in the
4738 procedure linkage table. */
4740 /* The native assembler will generate a 25_PLTREL reloc
4741 for a local symbol if you assemble a call from one
4742 section to another when using -K pic. */
4746 if (h->forced_local)
4749 if (h->plt.offset == (bfd_vma) - 1)
4750 /* We didn't make a PLT entry for this symbol. This
4751 happens when statically linking PIC code, or when
4752 using -Bsymbolic. */
4758 relocation = (splt->output_section->vma
4759 + splt->output_offset
4760 + h->plt.offset + 4)
4761 - (input_section->output_section->vma
4762 + input_section->output_offset
4767 case R_NDS32_GOTPC20:
4768 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
4769 ld24 rx,#_GLOBAL_OFFSET_TABLE_ */
4770 relocation = elf_gp (output_bfd);
4773 case R_NDS32_GOTPC_HI20:
4774 case R_NDS32_GOTPC_LO12:
4776 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
4778 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
4779 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
4782 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
4783 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
4785 relocation = elf_gp (output_bfd);
4786 relocation -= (input_section->output_section->vma
4787 + input_section->output_offset + rel->r_offset);
4793 case R_NDS32_GOT_HI20:
4794 case R_NDS32_GOT_LO12:
4795 case R_NDS32_GOT_LO15:
4796 case R_NDS32_GOT_LO19:
4797 /* Relocation is to the entry for this symbol in the global
4799 BFD_ASSERT (sgot != NULL);
4806 off = h->got.offset;
4807 BFD_ASSERT (off != (bfd_vma) - 1);
4808 dyn = htab->root.dynamic_sections_created;
4809 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4810 bfd_link_pic (info),
4812 || (bfd_link_pic (info)
4815 || h->forced_local) && h->def_regular))
4817 /* This is actually a static link, or it is a
4818 -Bsymbolic link and the symbol is defined
4819 locally, or the symbol was forced to be local
4820 because of a version file. We must initialize
4821 this entry in the global offset table. Since the
4822 offset must always be a multiple of 4, we use the
4823 least significant bit to record whether we have
4824 initialized it already.
4826 When doing a dynamic link, we create a .rela.got
4827 relocation entry to initialize the value. This
4828 is done in the finish_dynamic_symbol routine. */
4833 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
4837 relocation = sgot->output_section->vma + sgot->output_offset + off
4838 - elf_gp (output_bfd);
4845 BFD_ASSERT (local_got_offsets != NULL
4846 && local_got_offsets[r_symndx] != (bfd_vma) - 1);
4848 off = local_got_offsets[r_symndx];
4850 /* The offset must always be a multiple of 4. We use
4851 the least significant bit to record whether we have
4852 already processed this entry. */
4857 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
4859 if (bfd_link_pic (info))
4862 Elf_Internal_Rela outrel;
4864 /* We need to generate a R_NDS32_RELATIVE reloc
4865 for the dynamic linker. */
4866 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
4867 BFD_ASSERT (srelgot != NULL);
4869 outrel.r_offset = (elf_gp (output_bfd)
4870 + sgot->output_offset + off);
4871 outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE);
4872 outrel.r_addend = relocation;
4873 loc = srelgot->contents;
4875 srelgot->reloc_count * sizeof (Elf32_External_Rela);
4876 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4877 ++srelgot->reloc_count;
4879 local_got_offsets[r_symndx] |= 1;
4881 relocation = sgot->output_section->vma + sgot->output_offset + off
4882 - elf_gp (output_bfd);
4887 case R_NDS32_16_RELA:
4888 case R_NDS32_20_RELA:
4889 case R_NDS32_5_RELA:
4890 case R_NDS32_32_RELA:
4891 case R_NDS32_9_PCREL_RELA:
4892 case R_NDS32_WORD_9_PCREL_RELA:
4893 case R_NDS32_10_UPCREL_RELA:
4894 case R_NDS32_15_PCREL_RELA:
4895 case R_NDS32_17_PCREL_RELA:
4896 case R_NDS32_25_PCREL_RELA:
4897 case R_NDS32_HI20_RELA:
4898 case R_NDS32_LO12S3_RELA:
4899 case R_NDS32_LO12S2_RELA:
4900 case R_NDS32_LO12S2_DP_RELA:
4901 case R_NDS32_LO12S2_SP_RELA:
4902 case R_NDS32_LO12S1_RELA:
4903 case R_NDS32_LO12S0_RELA:
4904 case R_NDS32_LO12S0_ORI_RELA:
4905 if (bfd_link_pic (info) && r_symndx != 0
4906 && (input_section->flags & SEC_ALLOC) != 0
4907 && (eliminate_gc_relocs == 0
4908 || (sec && (sec->flags & SEC_EXCLUDE) == 0))
4909 && ((r_type != R_NDS32_9_PCREL_RELA
4910 && r_type != R_NDS32_WORD_9_PCREL_RELA
4911 && r_type != R_NDS32_10_UPCREL_RELA
4912 && r_type != R_NDS32_15_PCREL_RELA
4913 && r_type != R_NDS32_17_PCREL_RELA
4914 && r_type != R_NDS32_25_PCREL_RELA
4915 && !(r_type == R_NDS32_32_RELA
4916 && strcmp (input_section->name, ".eh_frame") == 0))
4917 || (h != NULL && h->dynindx != -1
4918 && (!info->symbolic || !h->def_regular))))
4920 Elf_Internal_Rela outrel;
4921 bfd_boolean skip, relocate;
4924 /* When generating a shared object, these relocations
4925 are copied into the output file to be resolved at run
4932 name = bfd_elf_string_from_elf_section
4933 (input_bfd, elf_elfheader (input_bfd)->e_shstrndx,
4934 elf_section_data (input_section)->rela.hdr->sh_name);
4938 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
4939 && strcmp (bfd_get_section_name (input_bfd,
4943 sreloc = bfd_get_section_by_name (dynobj, name);
4944 BFD_ASSERT (sreloc != NULL);
4950 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
4954 if (outrel.r_offset == (bfd_vma) - 1)
4956 else if (outrel.r_offset == (bfd_vma) - 2)
4957 skip = TRUE, relocate = TRUE;
4958 outrel.r_offset += (input_section->output_section->vma
4959 + input_section->output_offset);
4962 memset (&outrel, 0, sizeof outrel);
4963 else if (r_type == R_NDS32_17_PCREL_RELA
4964 || r_type == R_NDS32_15_PCREL_RELA
4965 || r_type == R_NDS32_25_PCREL_RELA)
4967 BFD_ASSERT (h != NULL && h->dynindx != -1);
4968 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
4969 outrel.r_addend = rel->r_addend;
4973 /* h->dynindx may be -1 if this symbol was marked to
4976 || ((info->symbolic || h->dynindx == -1)
4980 outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE);
4981 outrel.r_addend = relocation + rel->r_addend;
4985 BFD_ASSERT (h->dynindx != -1);
4986 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
4987 outrel.r_addend = rel->r_addend;
4991 loc = sreloc->contents;
4992 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
4993 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4994 ++sreloc->reloc_count;
4996 /* If this reloc is against an external symbol, we do
4997 not want to fiddle with the addend. Otherwise, we
4998 need to include the symbol value so that it becomes
4999 an addend for the dynamic reloc. */
5005 case R_NDS32_25_ABS_RELA:
5006 if (bfd_link_pic (info))
5008 (*_bfd_error_handler)
5009 (_("%s: warning: cannot deal R_NDS32_25_ABS_RELA in shared "
5010 "mode."), bfd_get_filename (input_bfd));
5015 case R_NDS32_9_PCREL:
5016 r = nds32_elf_do_9_pcrel_reloc (input_bfd, howto, input_section,
5018 sec, relocation, addend);
5023 Elf_Internal_Rela *lorel;
5025 /* We allow an arbitrary number of HI20 relocs before the
5026 LO12 reloc. This permits gcc to emit the HI and LO relocs
5028 for (lorel = rel + 1;
5030 && ELF32_R_TYPE (lorel->r_info) == R_NDS32_HI20); lorel++)
5033 && (ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S3
5034 || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S2
5035 || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S1
5036 || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S0))
5038 nds32_elf_relocate_hi20 (input_bfd, r_type, rel, lorel,
5039 contents, relocation + addend);
5043 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
5044 contents, offset, relocation,
5050 case R_NDS32_GOT17S2_RELA:
5051 case R_NDS32_GOT15S2_RELA:
5055 BFD_ASSERT (sgot != NULL);
5061 off = h->got.offset;
5062 BFD_ASSERT (off != (bfd_vma) - 1);
5064 dyn = htab->root.dynamic_sections_created;
5065 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL
5066 (dyn, bfd_link_pic (info), h)
5067 || (bfd_link_pic (info)
5073 /* This is actually a static link, or it is a
5074 -Bsymbolic link and the symbol is defined
5075 locally, or the symbol was forced to be local
5076 because of a version file. We must initialize
5077 this entry in the global offset table. Since the
5078 offset must always be a multiple of 4, we use the
5079 least significant bit to record whether we have
5080 initialized it already.
5082 When doing a dynamic link, we create a .rela.got
5083 relocation entry to initialize the value. This
5084 is done in the finish_dynamic_symbol routine. */
5089 bfd_put_32 (output_bfd, relocation,
5090 sgot->contents + off);
5099 BFD_ASSERT (local_got_offsets != NULL
5100 && local_got_offsets[r_symndx] != (bfd_vma) - 1);
5102 off = local_got_offsets[r_symndx];
5104 /* The offset must always be a multiple of 4. We use
5105 the least significant bit to record whether we have
5106 already processed this entry. */
5111 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
5113 if (bfd_link_pic (info))
5116 Elf_Internal_Rela outrel;
5118 /* We need to generate a R_NDS32_RELATIVE reloc
5119 for the dynamic linker. */
5120 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
5121 BFD_ASSERT (srelgot != NULL);
5123 outrel.r_offset = (elf_gp (output_bfd)
5124 + sgot->output_offset + off);
5125 outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE);
5126 outrel.r_addend = relocation;
5127 loc = srelgot->contents;
5129 srelgot->reloc_count * sizeof (Elf32_External_Rela);
5130 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5131 ++srelgot->reloc_count;
5133 local_got_offsets[r_symndx] |= 1;
5136 relocation = sgot->output_section->vma + sgot->output_offset + off
5137 - elf_gp (output_bfd);
5139 if (relocation & align)
5141 /* Incorrect alignment. */
5142 (*_bfd_error_handler)
5143 (_("%B: warning: unaligned access to GOT entry."), input_bfd);
5145 r = bfd_reloc_dangerous;
5150 case R_NDS32_SDA16S3_RELA:
5151 case R_NDS32_SDA15S3_RELA:
5152 case R_NDS32_SDA15S3:
5156 case R_NDS32_SDA17S2_RELA:
5157 case R_NDS32_SDA15S2_RELA:
5158 case R_NDS32_SDA12S2_SP_RELA:
5159 case R_NDS32_SDA12S2_DP_RELA:
5160 case R_NDS32_SDA15S2:
5161 case R_NDS32_SDA_FP7U2_RELA:
5165 case R_NDS32_SDA18S1_RELA:
5166 case R_NDS32_SDA15S1_RELA:
5167 case R_NDS32_SDA15S1:
5171 case R_NDS32_SDA19S0_RELA:
5172 case R_NDS32_SDA15S0_RELA:
5173 case R_NDS32_SDA15S0:
5177 BFD_ASSERT (sec != NULL);
5179 /* If the symbol is in the abs section, the out_bfd will be null.
5180 This happens when the relocation has a symbol@GOTOFF. */
5181 r = nds32_elf_final_sda_base (output_bfd, info, &gp, FALSE);
5182 if (r != bfd_reloc_ok)
5184 (*_bfd_error_handler)
5185 (_("%B: warning: relocate SDA_BASE failed."), input_bfd);
5190 /* At this point `relocation' contains the object's
5192 if (r_type == R_NDS32_SDA_FP7U2_RELA)
5194 relocation -= fpbase_addr;
5198 /* Now it contains the offset from _SDA_BASE_. */
5200 /* Make sure alignment is correct. */
5202 if (relocation & align)
5204 /* Incorrect alignment. */
5205 (*_bfd_error_handler)
5206 (_("%B(%A): warning: unaligned small data access of type %d."),
5207 input_bfd, input_section, r_type);
5214 case R_NDS32_17IFC_PCREL_RELA:
5215 case R_NDS32_10IFCU_PCREL_RELA:
5219 case R_NDS32_TLS_LE_HI20:
5220 case R_NDS32_TLS_LE_LO12:
5221 case R_NDS32_TLS_LE_20:
5222 case R_NDS32_TLS_LE_15S0:
5223 case R_NDS32_TLS_LE_15S1:
5224 case R_NDS32_TLS_LE_15S2:
5225 if (elf_hash_table (info)->tls_sec != NULL)
5226 relocation -= (elf_hash_table (info)->tls_sec->vma + TP_OFFSET);
5228 case R_NDS32_TLS_IE_HI20:
5229 case R_NDS32_TLS_IE_LO12S2:
5231 /* Relocation is to the entry for this symbol in the global
5233 unsigned int tls_type;
5235 Elf_Internal_Rela outrel;
5240 BFD_ASSERT (sgot != NULL);
5245 off = h->got.offset;
5246 BFD_ASSERT (off != (bfd_vma) - 1);
5247 dyn = htab->root.dynamic_sections_created;
5248 tls_type = ((struct elf_nds32_link_hash_entry *) h)->tls_type;
5249 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
5250 && (!bfd_link_pic (info)
5251 || !SYMBOL_REFERENCES_LOCAL (info, h)))
5256 /* Never happen currently. */
5257 BFD_ASSERT (local_got_offsets != NULL
5258 && local_got_offsets[r_symndx] != (bfd_vma) - 1);
5260 off = local_got_offsets[r_symndx];
5262 tls_type = elf32_nds32_local_got_tls_type (input_bfd)[r_symndx];
5264 relocation = sgot->output_section->vma + sgot->output_offset + off;
5266 if (r_type == R_NDS32_TLS_IE_LO12S2)
5269 /* The offset must always be a multiple of 4. We use
5270 the least significant bit to record whether we have
5271 already processed this entry. */
5276 bfd_boolean need_relocs = FALSE;
5277 srelgot = htab->srelgot;
5278 if ((bfd_link_pic (info) || indx != 0)
5280 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
5281 || h->root.type != bfd_link_hash_undefweak))
5284 BFD_ASSERT (srelgot != NULL);
5286 if (tls_type & GOT_TLS_IE)
5290 if (h->dynindx == 0)
5291 outrel.r_addend = relocation - dtpoff_base (info);
5293 outrel.r_addend = 0;
5294 outrel.r_offset = (sgot->output_section->vma
5295 + sgot->output_offset
5298 ELF32_R_INFO (h->dynindx, R_NDS32_TLS_TPOFF);
5300 loc = srelgot->contents;
5302 srelgot->reloc_count * sizeof (Elf32_External_Rela);
5303 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5304 ++srelgot->reloc_count;
5307 bfd_put_32 (output_bfd, h->root.u.def.value - TP_OFFSET,
5308 sgot->contents + off);
5314 /* DON'T fall through. */
5317 /* OLD_NDS32_RELOC. */
5319 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
5320 contents, offset, relocation, addend);
5324 switch ((int) r_type)
5326 case R_NDS32_20_RELA:
5327 case R_NDS32_5_RELA:
5328 case R_NDS32_9_PCREL_RELA:
5329 case R_NDS32_WORD_9_PCREL_RELA:
5330 case R_NDS32_10_UPCREL_RELA:
5331 case R_NDS32_15_PCREL_RELA:
5332 case R_NDS32_17_PCREL_RELA:
5333 case R_NDS32_25_PCREL_RELA:
5334 case R_NDS32_25_ABS_RELA:
5335 case R_NDS32_HI20_RELA:
5336 case R_NDS32_LO12S3_RELA:
5337 case R_NDS32_LO12S2_RELA:
5338 case R_NDS32_LO12S2_DP_RELA:
5339 case R_NDS32_LO12S2_SP_RELA:
5340 case R_NDS32_LO12S1_RELA:
5341 case R_NDS32_LO12S0_RELA:
5342 case R_NDS32_LO12S0_ORI_RELA:
5343 case R_NDS32_SDA16S3_RELA:
5344 case R_NDS32_SDA17S2_RELA:
5345 case R_NDS32_SDA18S1_RELA:
5346 case R_NDS32_SDA19S0_RELA:
5347 case R_NDS32_SDA15S3_RELA:
5348 case R_NDS32_SDA15S2_RELA:
5349 case R_NDS32_SDA12S2_DP_RELA:
5350 case R_NDS32_SDA12S2_SP_RELA:
5351 case R_NDS32_SDA15S1_RELA:
5352 case R_NDS32_SDA15S0_RELA:
5353 case R_NDS32_SDA_FP7U2_RELA:
5354 case R_NDS32_9_PLTREL:
5355 case R_NDS32_25_PLTREL:
5357 case R_NDS32_GOT_HI20:
5358 case R_NDS32_GOT_LO12:
5359 case R_NDS32_GOT_LO15:
5360 case R_NDS32_GOT_LO19:
5361 case R_NDS32_GOT15S2_RELA:
5362 case R_NDS32_GOT17S2_RELA:
5363 case R_NDS32_GOTPC20:
5364 case R_NDS32_GOTPC_HI20:
5365 case R_NDS32_GOTPC_LO12:
5366 case R_NDS32_GOTOFF:
5367 case R_NDS32_GOTOFF_HI20:
5368 case R_NDS32_GOTOFF_LO12:
5369 case R_NDS32_GOTOFF_LO15:
5370 case R_NDS32_GOTOFF_LO19:
5371 case R_NDS32_PLTREL_HI20:
5372 case R_NDS32_PLTREL_LO12:
5373 case R_NDS32_PLT_GOTREL_HI20:
5374 case R_NDS32_PLT_GOTREL_LO12:
5375 case R_NDS32_PLT_GOTREL_LO15:
5376 case R_NDS32_PLT_GOTREL_LO19:
5377 case R_NDS32_PLT_GOTREL_LO20:
5378 case R_NDS32_17IFC_PCREL_RELA:
5379 case R_NDS32_10IFCU_PCREL_RELA:
5380 case R_NDS32_TLS_LE_HI20:
5381 case R_NDS32_TLS_LE_LO12:
5382 case R_NDS32_TLS_IE_HI20:
5383 case R_NDS32_TLS_IE_LO12S2:
5384 case R_NDS32_TLS_LE_20:
5385 case R_NDS32_TLS_LE_15S0:
5386 case R_NDS32_TLS_LE_15S1:
5387 case R_NDS32_TLS_LE_15S2:
5388 /* Instruction related relocs must handle endian properly. */
5389 /* NOTE: PIC IS NOT HANDLE YET; DO IT LATER. */
5390 r = nds32_elf_final_link_relocate (howto, input_bfd,
5391 input_section, contents,
5392 rel->r_offset, relocation,
5397 /* All other relocs can use default handler. */
5398 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
5399 contents, rel->r_offset,
5400 relocation, rel->r_addend);
5406 if (r != bfd_reloc_ok)
5408 /* FIXME: This should be generic enough to go in a utility. */
5412 name = h->root.root.string;
5415 name = bfd_elf_string_from_elf_section
5416 (input_bfd, symtab_hdr->sh_link, sym->st_name);
5417 if (name == NULL || *name == '\0')
5418 name = bfd_section_name (input_bfd, sec);
5426 case bfd_reloc_overflow:
5427 (*info->callbacks->reloc_overflow)
5428 (info, (h ? &h->root : NULL), name, howto->name,
5429 (bfd_vma) 0, input_bfd, input_section, offset);
5432 case bfd_reloc_undefined:
5433 (*info->callbacks->undefined_symbol)
5434 (info, name, input_bfd, input_section, offset, TRUE);
5437 case bfd_reloc_outofrange:
5438 errmsg = _("internal error: out of range error");
5441 case bfd_reloc_notsupported:
5442 errmsg = _("internal error: unsupported relocation error");
5445 case bfd_reloc_dangerous:
5446 errmsg = _("internal error: dangerous error");
5450 errmsg = _("internal error: unknown error");
5454 (*info->callbacks->warning) (info, errmsg, name, input_bfd,
5455 input_section, offset);
5464 /* Finish up dynamic symbol handling. We set the contents of various
5465 dynamic sections here. */
5468 nds32_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info,
5469 struct elf_link_hash_entry *h, Elf_Internal_Sym *sym)
5471 struct elf_nds32_link_hash_table *htab;
5474 htab = nds32_elf_hash_table (info);
5476 if (h->plt.offset != (bfd_vma) - 1)
5484 bfd_vma local_plt_offset;
5485 Elf_Internal_Rela rela;
5487 /* This symbol has an entry in the procedure linkage table. Set
5490 BFD_ASSERT (h->dynindx != -1);
5493 sgot = htab->sgotplt;
5494 srela = htab->srelplt;
5495 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
5497 /* Get the index in the procedure linkage table which
5498 corresponds to this symbol. This is the index of this symbol
5499 in all the symbols for which we are making plt entries. The
5500 first entry in the procedure linkage table is reserved. */
5501 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
5503 /* Get the offset into the .got table of the entry that
5504 corresponds to this function. Each .got entry is 4 bytes.
5505 The first three are reserved. */
5506 got_offset = (plt_index + 3) * 4;
5508 /* Fill in the entry in the procedure linkage table. */
5509 if (!bfd_link_pic (info))
5513 insn = PLT_ENTRY_WORD0 + (((sgot->output_section->vma
5514 + sgot->output_offset + got_offset) >> 12)
5516 bfd_putb32 (insn, splt->contents + h->plt.offset);
5518 insn = PLT_ENTRY_WORD1 + (((sgot->output_section->vma
5519 + sgot->output_offset + got_offset) & 0x0fff)
5521 bfd_putb32 (insn, splt->contents + h->plt.offset + 4);
5523 insn = PLT_ENTRY_WORD2;
5524 bfd_putb32 (insn, splt->contents + h->plt.offset + 8);
5526 insn = PLT_ENTRY_WORD3 + (plt_index & 0x7ffff);
5527 bfd_putb32 (insn, splt->contents + h->plt.offset + 12);
5529 insn = PLT_ENTRY_WORD4
5530 + (((unsigned int) ((-(h->plt.offset + 16)) >> 1)) & 0xffffff);
5531 bfd_putb32 (insn, splt->contents + h->plt.offset + 16);
5532 local_plt_offset = 12;
5536 /* sda_base must be set at this time. */
5540 /* FIXME, sda_base is 65536, it will damage opcode. */
5541 /* insn = PLT_PIC_ENTRY_WORD0 + (((got_offset - sda_base) >> 2) & 0x7fff); */
5542 offset = sgot->output_section->vma + sgot->output_offset + got_offset
5543 - elf_gp (output_bfd);
5544 insn = PLT_PIC_ENTRY_WORD0 + ((offset >> 12) & 0xfffff);
5545 bfd_putb32 (insn, splt->contents + h->plt.offset);
5547 insn = PLT_PIC_ENTRY_WORD1 + (offset & 0xfff);
5548 bfd_putb32 (insn, splt->contents + h->plt.offset + 4);
5550 insn = PLT_PIC_ENTRY_WORD2;
5551 bfd_putb32 (insn, splt->contents + h->plt.offset + 8);
5553 insn = PLT_PIC_ENTRY_WORD3;
5554 bfd_putb32 (insn, splt->contents + h->plt.offset + 12);
5556 insn = PLT_PIC_ENTRY_WORD4 + (plt_index & 0x7fffff);
5557 bfd_putb32 (insn, splt->contents + h->plt.offset + 16);
5559 insn = PLT_PIC_ENTRY_WORD5
5560 + (((unsigned int) ((-(h->plt.offset + 20)) >> 1)) & 0xffffff);
5561 bfd_putb32 (insn, splt->contents + h->plt.offset + 20);
5563 local_plt_offset = 16;
5566 /* Fill in the entry in the global offset table,
5567 so it will fall through to the next instruction for the first time. */
5568 bfd_put_32 (output_bfd,
5569 (splt->output_section->vma + splt->output_offset
5570 + h->plt.offset + local_plt_offset),
5571 sgot->contents + got_offset);
5573 /* Fill in the entry in the .rela.plt section. */
5574 rela.r_offset = (sgot->output_section->vma
5575 + sgot->output_offset + got_offset);
5576 rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_JMP_SLOT);
5578 loc = srela->contents;
5579 loc += plt_index * sizeof (Elf32_External_Rela);
5580 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
5582 if (!h->def_regular)
5584 /* Mark the symbol as undefined, rather than as defined in
5585 the .plt section. Leave the value alone. */
5586 sym->st_shndx = SHN_UNDEF;
5587 if (!h->ref_regular_nonweak)
5592 if (h->got.offset != (bfd_vma) - 1)
5596 Elf_Internal_Rela rela;
5598 /* This symbol has an entry in the global offset table.
5602 srela = htab->srelgot;
5603 BFD_ASSERT (sgot != NULL && srela != NULL);
5605 rela.r_offset = (sgot->output_section->vma
5606 + sgot->output_offset + (h->got.offset & ~1));
5608 /* If this is a -Bsymbolic link, and the symbol is defined
5609 locally, we just want to emit a RELATIVE reloc. Likewise if
5610 the symbol was forced to be local because of a version file.
5611 The entry in the global offset table will already have been
5612 initialized in the relocate_section function. */
5613 if (bfd_link_pic (info)
5615 || h->dynindx == -1 || h->forced_local) && h->def_regular)
5617 rela.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE);
5618 rela.r_addend = (h->root.u.def.value
5619 + h->root.u.def.section->output_section->vma
5620 + h->root.u.def.section->output_offset);
5624 BFD_ASSERT ((h->got.offset & 1) == 0);
5625 bfd_put_32 (output_bfd, (bfd_vma) 0,
5626 sgot->contents + h->got.offset);
5627 rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_GLOB_DAT);
5631 loc = srela->contents;
5632 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
5633 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
5634 ++srela->reloc_count;
5640 Elf_Internal_Rela rela;
5642 /* This symbols needs a copy reloc. Set it up. */
5644 BFD_ASSERT (h->dynindx != -1
5645 && (h->root.type == bfd_link_hash_defined
5646 || h->root.type == bfd_link_hash_defweak));
5648 s = bfd_get_section_by_name (h->root.u.def.section->owner, ".rela.bss");
5649 BFD_ASSERT (s != NULL);
5651 rela.r_offset = (h->root.u.def.value
5652 + h->root.u.def.section->output_section->vma
5653 + h->root.u.def.section->output_offset);
5654 rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_COPY);
5657 loc += s->reloc_count * sizeof (Elf32_External_Rela);
5658 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
5662 /* Mark some specially defined symbols as absolute. */
5663 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
5664 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
5665 sym->st_shndx = SHN_ABS;
5671 /* Finish up the dynamic sections. */
5674 nds32_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
5676 struct elf_nds32_link_hash_table *htab;
5681 htab = nds32_elf_hash_table (info);
5682 dynobj = htab->root.dynobj;
5684 sgot = htab->sgotplt;
5685 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
5687 if (htab->root.dynamic_sections_created)
5690 Elf32_External_Dyn *dyncon, *dynconend;
5692 BFD_ASSERT (sgot != NULL && sdyn != NULL);
5694 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5695 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5697 for (; dyncon < dynconend; dyncon++)
5699 Elf_Internal_Dyn dyn;
5702 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5715 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
5716 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5721 dyn.d_un.d_val = s->size;
5722 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5726 /* My reading of the SVR4 ABI indicates that the
5727 procedure linkage table relocs (DT_JMPREL) should be
5728 included in the overall relocs (DT_RELA). This is
5729 what Solaris does. However, UnixWare can not handle
5730 that case. Therefore, we override the DT_RELASZ entry
5731 here to make it not include the JMPREL relocs. Since
5732 the linker script arranges for .rela.plt to follow all
5733 other relocation sections, we don't have to worry
5734 about changing the DT_RELA entry. */
5735 if (htab->srelplt != NULL)
5738 dyn.d_un.d_val -= s->size;
5740 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5745 /* Fill in the first entry in the procedure linkage table. */
5747 if (splt && splt->size > 0)
5749 if (bfd_link_pic (info))
5754 /* FIXME, sda_base is 65536, it will damage opcode. */
5755 /* insn = PLT_PIC_ENTRY_WORD0 + (((got_offset - sda_base) >> 2) & 0x7fff); */
5756 offset = sgot->output_section->vma + sgot->output_offset + 4
5757 - elf_gp (output_bfd);
5758 insn = PLT0_PIC_ENTRY_WORD0 | ((offset >> 12) & 0xfffff);
5759 bfd_putb32 (insn, splt->contents);
5761 /* insn = PLT0_PIC_ENTRY_WORD0 | (((8 - sda_base) >> 2) & 0x7fff) ; */
5762 /* here has a typo? */
5763 insn = PLT0_PIC_ENTRY_WORD1 | (offset & 0xfff);
5764 bfd_putb32 (insn, splt->contents + 4);
5766 insn = PLT0_PIC_ENTRY_WORD2;
5767 bfd_putb32 (insn, splt->contents + 8);
5769 insn = PLT0_PIC_ENTRY_WORD3;
5770 bfd_putb32 (insn, splt->contents + 12);
5772 insn = PLT0_PIC_ENTRY_WORD4;
5773 bfd_putb32 (insn, splt->contents + 16);
5775 insn = PLT0_PIC_ENTRY_WORD5;
5776 bfd_putb32 (insn, splt->contents + 20);
5783 /* addr = .got + 4 */
5784 addr = sgot->output_section->vma + sgot->output_offset + 4;
5785 insn = PLT0_ENTRY_WORD0 | ((addr >> 12) & 0xfffff);
5786 bfd_putb32 (insn, splt->contents);
5788 insn = PLT0_ENTRY_WORD1 | (addr & 0x0fff);
5789 bfd_putb32 (insn, splt->contents + 4);
5791 insn = PLT0_ENTRY_WORD2;
5792 bfd_putb32 (insn, splt->contents + 8);
5794 insn = PLT0_ENTRY_WORD3;
5795 bfd_putb32 (insn, splt->contents + 12);
5797 insn = PLT0_ENTRY_WORD4;
5798 bfd_putb32 (insn, splt->contents + 16);
5801 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
5806 /* Fill in the first three entries in the global offset table. */
5807 if (sgot && sgot->size > 0)
5810 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
5812 bfd_put_32 (output_bfd,
5813 sdyn->output_section->vma + sdyn->output_offset,
5815 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
5816 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
5818 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
5825 /* Set the right machine number. */
5828 nds32_elf_object_p (bfd *abfd)
5830 static unsigned int cur_arch = 0;
5832 if (E_N1_ARCH != (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH))
5834 /* E_N1_ARCH is a wild card, so it is set only when no others exist. */
5835 cur_arch = (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH);
5842 bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1);
5845 bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h);
5847 case E_NDS_ARCH_STAR_V2_0:
5848 bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v2);
5850 case E_NDS_ARCH_STAR_V3_0:
5851 bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v3);
5853 case E_NDS_ARCH_STAR_V3_M:
5854 bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v3m);
5861 /* Store the machine number in the flags field. */
5864 nds32_elf_final_write_processing (bfd *abfd,
5865 bfd_boolean linker ATTRIBUTE_UNUSED)
5868 static unsigned int cur_mach = 0;
5870 if (bfd_mach_n1 != bfd_get_mach (abfd))
5872 cur_mach = bfd_get_mach (abfd);
5878 /* Only happen when object is empty, since the case is abandon. */
5880 val |= E_NDS_ABI_AABI;
5881 val |= E_NDS32_ELF_VER_1_4;
5886 case bfd_mach_n1h_v2:
5887 val = E_NDS_ARCH_STAR_V2_0;
5889 case bfd_mach_n1h_v3:
5890 val = E_NDS_ARCH_STAR_V3_0;
5892 case bfd_mach_n1h_v3m:
5893 val = E_NDS_ARCH_STAR_V3_M;
5900 elf_elfheader (abfd)->e_flags &= ~EF_NDS_ARCH;
5901 elf_elfheader (abfd)->e_flags |= val;
5904 /* Function to keep NDS32 specific file flags. */
5907 nds32_elf_set_private_flags (bfd *abfd, flagword flags)
5909 BFD_ASSERT (!elf_flags_init (abfd)
5910 || elf_elfheader (abfd)->e_flags == flags);
5912 elf_elfheader (abfd)->e_flags = flags;
5913 elf_flags_init (abfd) = TRUE;
5918 convert_e_flags (unsigned int e_flags, unsigned int arch)
5920 if ((e_flags & EF_NDS_ARCH) == E_NDS_ARCH_STAR_V0_9)
5922 /* From 0.9 to 1.0. */
5923 e_flags = (e_flags & (~EF_NDS_ARCH)) | E_NDS_ARCH_STAR_V1_0;
5925 /* Invert E_NDS32_HAS_NO_MAC_INST. */
5926 e_flags ^= E_NDS32_HAS_NO_MAC_INST;
5927 if (arch == E_NDS_ARCH_STAR_V1_0)
5934 /* From 1.0 to 2.0. */
5935 e_flags = (e_flags & (~EF_NDS_ARCH)) | E_NDS_ARCH_STAR_V2_0;
5937 /* Clear E_NDS32_HAS_MFUSR_PC_INST. */
5938 e_flags &= ~E_NDS32_HAS_MFUSR_PC_INST;
5940 /* Invert E_NDS32_HAS_NO_MAC_INST. */
5941 e_flags ^= E_NDS32_HAS_NO_MAC_INST;
5946 nds32_check_vec_size (bfd *ibfd)
5948 static unsigned int nds32_vec_size = 0;
5950 asection *sec_t = NULL;
5951 bfd_byte *contents = NULL;
5953 sec_t = bfd_get_section_by_name (ibfd, ".nds32_e_flags");
5955 if (sec_t && sec_t->size >= 4)
5957 /* Get vec_size in file. */
5958 unsigned int flag_t;
5960 nds32_get_section_contents (ibfd, sec_t, &contents, TRUE);
5961 flag_t = bfd_get_32 (ibfd, contents);
5963 /* The value could only be 4 or 16. */
5965 if (!nds32_vec_size)
5966 /* Set if not set yet. */
5967 nds32_vec_size = (flag_t & 0x3);
5968 else if (nds32_vec_size != (flag_t & 0x3))
5970 (*_bfd_error_handler) (_("%B: ISR vector size mismatch"
5971 " with previous modules, previous %u-byte, current %u-byte"),
5973 nds32_vec_size == 1 ? 4 : nds32_vec_size == 2 ? 16 : 0xffffffff,
5974 (flag_t & 0x3) == 1 ? 4 : (flag_t & 0x3) == 2 ? 16 : 0xffffffff);
5978 /* Only keep the first vec_size section. */
5979 sec_t->flags |= SEC_EXCLUDE;
5985 /* Merge backend specific data from an object file to the output
5986 object file when linking. */
5989 nds32_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5993 flagword out_16regs;
5995 flagword out_no_mac;
5997 flagword out_version;
5998 flagword in_version;
5999 flagword out_fpu_config;
6000 flagword in_fpu_config;
6002 /* TODO: Revise to use object-attributes instead. */
6003 if (!nds32_check_vec_size (ibfd))
6006 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6007 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6010 if (bfd_little_endian (ibfd) != bfd_little_endian (obfd))
6012 (*_bfd_error_handler)
6013 (_("%B: warning: Endian mismatch with previous modules."), ibfd);
6015 bfd_set_error (bfd_error_bad_value);
6019 in_version = elf_elfheader (ibfd)->e_flags & EF_NDS32_ELF_VERSION;
6020 if (in_version == E_NDS32_ELF_VER_1_2)
6022 (*_bfd_error_handler)
6023 (_("%B: warning: Older version of object file encountered, "
6024 "Please recompile with current tool chain."), ibfd);
6027 /* We may need to merge V1 and V2 arch object files to V2. */
6028 if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH)
6029 != (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH))
6031 /* Need to convert version. */
6032 if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH)
6033 == E_NDS_ARCH_STAR_RESERVED)
6035 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
6037 else if ((elf_elfheader (obfd)->e_flags & EF_NDS_ARCH) == E_NDS_ARCH_STAR_V0_9
6038 || (elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH)
6039 > (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH))
6041 elf_elfheader (obfd)->e_flags =
6042 convert_e_flags (elf_elfheader (obfd)->e_flags,
6043 (elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH));
6047 elf_elfheader (ibfd)->e_flags =
6048 convert_e_flags (elf_elfheader (ibfd)->e_flags,
6049 (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH));
6053 /* Extract some flags. */
6054 in_flags = elf_elfheader (ibfd)->e_flags
6055 & (~(E_NDS32_HAS_REDUCED_REGS | EF_NDS32_ELF_VERSION
6056 | E_NDS32_HAS_NO_MAC_INST | E_NDS32_FPU_REG_CONF));
6058 /* The following flags need special treatment. */
6059 in_16regs = elf_elfheader (ibfd)->e_flags & E_NDS32_HAS_REDUCED_REGS;
6060 in_no_mac = elf_elfheader (ibfd)->e_flags & E_NDS32_HAS_NO_MAC_INST;
6061 in_fpu_config = elf_elfheader (ibfd)->e_flags & E_NDS32_FPU_REG_CONF;
6063 /* Extract some flags. */
6064 out_flags = elf_elfheader (obfd)->e_flags
6065 & (~(E_NDS32_HAS_REDUCED_REGS | EF_NDS32_ELF_VERSION
6066 | E_NDS32_HAS_NO_MAC_INST | E_NDS32_FPU_REG_CONF));
6068 /* The following flags need special treatment. */
6069 out_16regs = elf_elfheader (obfd)->e_flags & E_NDS32_HAS_REDUCED_REGS;
6070 out_no_mac = elf_elfheader (obfd)->e_flags & E_NDS32_HAS_NO_MAC_INST;
6071 out_fpu_config = elf_elfheader (obfd)->e_flags & E_NDS32_FPU_REG_CONF;
6072 out_version = elf_elfheader (obfd)->e_flags & EF_NDS32_ELF_VERSION;
6073 if (!elf_flags_init (obfd))
6075 /* If the input is the default architecture then do not
6076 bother setting the flags for the output architecture,
6077 instead allow future merges to do this. If no future
6078 merges ever set these flags then they will retain their
6079 unitialised values, which surprise surprise, correspond
6080 to the default values. */
6081 if (bfd_get_arch_info (ibfd)->the_default)
6084 elf_flags_init (obfd) = TRUE;
6085 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
6087 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
6088 && bfd_get_arch_info (obfd)->the_default)
6090 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
6091 bfd_get_mach (ibfd));
6097 /* Check flag compatibility. */
6098 if ((in_flags & EF_NDS_ABI) != (out_flags & EF_NDS_ABI))
6100 (*_bfd_error_handler)
6101 (_("%B: error: ABI mismatch with previous modules."), ibfd);
6103 bfd_set_error (bfd_error_bad_value);
6107 if ((in_flags & EF_NDS_ARCH) != (out_flags & EF_NDS_ARCH))
6109 if (((in_flags & EF_NDS_ARCH) != E_N1_ARCH))
6111 (*_bfd_error_handler)
6112 (_("%B: error: Instruction set mismatch with previous modules."), ibfd);
6114 bfd_set_error (bfd_error_bad_value);
6119 /* When linking with V1.2 and V1.3 objects together the output is V1.2.
6120 and perf ext1 and DIV are mergerd to perf ext1. */
6121 if (in_version == E_NDS32_ELF_VER_1_2 || out_version == E_NDS32_ELF_VER_1_2)
6123 elf_elfheader (obfd)->e_flags =
6124 (in_flags & (~(E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST)))
6125 | (out_flags & (~(E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST)))
6126 | (((in_flags & (E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST)))
6127 ? E_NDS32_HAS_EXT_INST : 0)
6128 | (((out_flags & (E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST)))
6129 ? E_NDS32_HAS_EXT_INST : 0)
6130 | (in_16regs & out_16regs) | (in_no_mac & out_no_mac)
6131 | ((in_version > out_version) ? out_version : in_version);
6135 if (in_version != out_version)
6136 (*_bfd_error_handler) (_("%B: warning: Incompatible elf-versions %s and %s."),
6137 ibfd, nds32_elfver_strtab[out_version],
6138 nds32_elfver_strtab[in_version]);
6140 elf_elfheader (obfd)->e_flags = in_flags | out_flags
6141 | (in_16regs & out_16regs) | (in_no_mac & out_no_mac)
6142 | (in_fpu_config > out_fpu_config ? in_fpu_config : out_fpu_config)
6143 | (in_version > out_version ? out_version : in_version);
6149 /* Display the flags field. */
6152 nds32_elf_print_private_bfd_data (bfd *abfd, void *ptr)
6154 FILE *file = (FILE *) ptr;
6156 BFD_ASSERT (abfd != NULL && ptr != NULL);
6158 _bfd_elf_print_private_bfd_data (abfd, ptr);
6160 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
6162 switch (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH)
6166 fprintf (file, _(": n1 instructions"));
6169 fprintf (file, _(": n1h instructions"));
6179 nds32_elf_action_discarded (asection *sec)
6183 (".gcc_except_table", sec->name, sizeof (".gcc_except_table") - 1) == 0)
6186 return _bfd_elf_default_action_discarded (sec);
6190 nds32_elf_gc_mark_hook (asection *sec, struct bfd_link_info *info,
6191 Elf_Internal_Rela *rel, struct elf_link_hash_entry *h,
6192 Elf_Internal_Sym *sym)
6195 switch (ELF32_R_TYPE (rel->r_info))
6197 case R_NDS32_GNU_VTINHERIT:
6198 case R_NDS32_GNU_VTENTRY:
6199 case R_NDS32_RELA_GNU_VTINHERIT:
6200 case R_NDS32_RELA_GNU_VTENTRY:
6204 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
6208 nds32_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, asection *sec,
6209 const Elf_Internal_Rela *relocs)
6211 /* Update the got entry reference counts for the section being removed. */
6212 Elf_Internal_Shdr *symtab_hdr;
6213 struct elf_link_hash_entry **sym_hashes;
6214 bfd_signed_vma *local_got_refcounts;
6215 const Elf_Internal_Rela *rel, *relend;
6217 elf_section_data (sec)->local_dynrel = NULL;
6219 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6220 sym_hashes = elf_sym_hashes (abfd);
6221 local_got_refcounts = elf_local_got_refcounts (abfd);
6223 relend = relocs + sec->reloc_count;
6224 for (rel = relocs; rel < relend; rel++)
6226 unsigned long r_symndx;
6227 struct elf_link_hash_entry *h = NULL;
6229 r_symndx = ELF32_R_SYM (rel->r_info);
6230 if (r_symndx >= symtab_hdr->sh_info)
6232 /* External symbol. */
6233 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6234 while (h->root.type == bfd_link_hash_indirect
6235 || h->root.type == bfd_link_hash_warning)
6236 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6239 switch (ELF32_R_TYPE (rel->r_info))
6241 case R_NDS32_GOT_HI20:
6242 case R_NDS32_GOT_LO12:
6243 case R_NDS32_GOT_LO15:
6244 case R_NDS32_GOT_LO19:
6245 case R_NDS32_GOT17S2_RELA:
6246 case R_NDS32_GOT15S2_RELA:
6247 case R_NDS32_GOTOFF:
6248 case R_NDS32_GOTOFF_HI20:
6249 case R_NDS32_GOTOFF_LO12:
6250 case R_NDS32_GOTOFF_LO15:
6251 case R_NDS32_GOTOFF_LO19:
6253 case R_NDS32_GOTPC_HI20:
6254 case R_NDS32_GOTPC_LO12:
6255 case R_NDS32_GOTPC20:
6258 if (h->got.refcount > 0)
6263 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
6264 local_got_refcounts[r_symndx]--;
6268 case R_NDS32_16_RELA:
6269 case R_NDS32_20_RELA:
6270 case R_NDS32_5_RELA:
6271 case R_NDS32_32_RELA:
6272 case R_NDS32_HI20_RELA:
6273 case R_NDS32_LO12S3_RELA:
6274 case R_NDS32_LO12S2_RELA:
6275 case R_NDS32_LO12S2_DP_RELA:
6276 case R_NDS32_LO12S2_SP_RELA:
6277 case R_NDS32_LO12S1_RELA:
6278 case R_NDS32_LO12S0_RELA:
6279 case R_NDS32_LO12S0_ORI_RELA:
6280 case R_NDS32_SDA16S3_RELA:
6281 case R_NDS32_SDA17S2_RELA:
6282 case R_NDS32_SDA18S1_RELA:
6283 case R_NDS32_SDA19S0_RELA:
6284 case R_NDS32_SDA15S3_RELA:
6285 case R_NDS32_SDA15S2_RELA:
6286 case R_NDS32_SDA12S2_DP_RELA:
6287 case R_NDS32_SDA12S2_SP_RELA:
6288 case R_NDS32_SDA15S1_RELA:
6289 case R_NDS32_SDA15S0_RELA:
6290 case R_NDS32_SDA_FP7U2_RELA:
6291 case R_NDS32_15_PCREL_RELA:
6292 case R_NDS32_17_PCREL_RELA:
6293 case R_NDS32_25_PCREL_RELA:
6296 struct elf_nds32_link_hash_entry *eh;
6297 struct elf_nds32_dyn_relocs **pp;
6298 struct elf_nds32_dyn_relocs *p;
6300 if (!bfd_link_pic (info) && h->plt.refcount > 0)
6301 h->plt.refcount -= 1;
6303 eh = (struct elf_nds32_link_hash_entry *) h;
6305 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
6308 if (ELF32_R_TYPE (rel->r_info) == R_NDS32_15_PCREL_RELA
6309 || ELF32_R_TYPE (rel->r_info) == R_NDS32_17_PCREL_RELA
6310 || ELF32_R_TYPE (rel->r_info) == R_NDS32_25_PCREL_RELA)
6320 case R_NDS32_9_PLTREL:
6321 case R_NDS32_25_PLTREL:
6324 if (h->plt.refcount > 0)
6337 /* Look through the relocs for a section during the first phase.
6338 Since we don't do .gots or .plts, we just need to consider the
6339 virtual table relocs for gc. */
6342 nds32_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
6343 asection *sec, const Elf_Internal_Rela *relocs)
6345 Elf_Internal_Shdr *symtab_hdr;
6346 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
6347 const Elf_Internal_Rela *rel;
6348 const Elf_Internal_Rela *rel_end;
6349 struct elf_nds32_link_hash_table *htab;
6351 asection *sreloc = NULL;
6353 if (bfd_link_relocatable (info))
6356 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6357 sym_hashes = elf_sym_hashes (abfd);
6359 sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
6360 if (!elf_bad_symtab (abfd))
6361 sym_hashes_end -= symtab_hdr->sh_info;
6363 htab = nds32_elf_hash_table (info);
6364 dynobj = htab->root.dynobj;
6366 rel_end = relocs + sec->reloc_count;
6367 for (rel = relocs; rel < rel_end; rel++)
6369 enum elf_nds32_reloc_type r_type;
6370 struct elf_link_hash_entry *h;
6371 unsigned long r_symndx;
6372 int tls_type, old_tls_type;
6374 r_symndx = ELF32_R_SYM (rel->r_info);
6375 r_type = ELF32_R_TYPE (rel->r_info);
6376 if (r_symndx < symtab_hdr->sh_info)
6380 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6381 while (h->root.type == bfd_link_hash_indirect
6382 || h->root.type == bfd_link_hash_warning)
6383 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6386 /* Some relocs require a global offset table. We create
6387 got section here, since these relocation need got section
6388 and it is not created yet. */
6389 if (htab->sgot == NULL)
6393 case R_NDS32_GOT_HI20:
6394 case R_NDS32_GOT_LO12:
6395 case R_NDS32_GOT_LO15:
6396 case R_NDS32_GOT_LO19:
6397 case R_NDS32_GOT17S2_RELA:
6398 case R_NDS32_GOT15S2_RELA:
6399 case R_NDS32_GOTOFF:
6400 case R_NDS32_GOTOFF_HI20:
6401 case R_NDS32_GOTOFF_LO12:
6402 case R_NDS32_GOTOFF_LO15:
6403 case R_NDS32_GOTOFF_LO19:
6404 case R_NDS32_GOTPC20:
6405 case R_NDS32_GOTPC_HI20:
6406 case R_NDS32_GOTPC_LO12:
6408 case R_NDS32_TLS_IE_HI20:
6409 case R_NDS32_TLS_IE_LO12S2:
6411 htab->root.dynobj = dynobj = abfd;
6412 if (!create_got_section (dynobj, info))
6421 switch ((int) r_type)
6423 case R_NDS32_GOT_HI20:
6424 case R_NDS32_GOT_LO12:
6425 case R_NDS32_GOT_LO15:
6426 case R_NDS32_GOT_LO19:
6428 case R_NDS32_TLS_IE_HI20:
6429 case R_NDS32_TLS_IE_LO12S2:
6432 case R_NDS32_TLS_IE_HI20:
6433 case R_NDS32_TLS_IE_LO12S2:
6434 tls_type = GOT_TLS_IE;
6437 tls_type = GOT_NORMAL;
6442 old_tls_type = elf32_nds32_hash_entry (h)->tls_type;
6443 h->got.refcount += 1;
6447 bfd_signed_vma *local_got_refcounts;
6449 /* This is a global offset table entry for a local
6451 local_got_refcounts = elf_local_got_refcounts (abfd);
6452 if (local_got_refcounts == NULL)
6456 size = symtab_hdr->sh_info;
6457 size *= sizeof (bfd_signed_vma);
6458 local_got_refcounts = (bfd_signed_vma *) bfd_zalloc (abfd, size);
6459 if (local_got_refcounts == NULL)
6461 elf_local_got_refcounts (abfd) = local_got_refcounts;
6463 local_got_refcounts[r_symndx] += 1;
6464 old_tls_type = elf32_nds32_local_got_tls_type (abfd)[r_symndx];
6467 /* We will already have issued an error message if there
6468 is a TLS/non-TLS mismatch, based on the symbol
6469 type. So just combine any TLS types needed. */
6470 if (old_tls_type != GOT_UNKNOWN && old_tls_type != GOT_NORMAL
6471 && tls_type != GOT_NORMAL)
6472 tls_type |= old_tls_type;
6474 if (old_tls_type != tls_type)
6477 elf32_nds32_hash_entry (h)->tls_type = tls_type;
6479 elf32_nds32_local_got_tls_type (abfd)[r_symndx] = tls_type;
6482 case R_NDS32_9_PLTREL:
6483 case R_NDS32_25_PLTREL:
6484 case R_NDS32_PLTREL_HI20:
6485 case R_NDS32_PLTREL_LO12:
6486 case R_NDS32_PLT_GOTREL_HI20:
6487 case R_NDS32_PLT_GOTREL_LO12:
6488 case R_NDS32_PLT_GOTREL_LO15:
6489 case R_NDS32_PLT_GOTREL_LO19:
6490 case R_NDS32_PLT_GOTREL_LO20:
6492 /* This symbol requires a procedure linkage table entry. We
6493 actually build the entry in adjust_dynamic_symbol,
6494 because this might be a case of linking PIC code without
6495 linking in any dynamic objects, in which case we don't
6496 need to generate a procedure linkage table after all. */
6498 /* If this is a local symbol, we resolve it directly without
6499 creating a procedure linkage table entry. */
6503 if (h->forced_local)
6506 elf32_nds32_hash_entry (h)->tls_type = GOT_NORMAL;
6508 h->plt.refcount += 1;
6511 case R_NDS32_16_RELA:
6512 case R_NDS32_20_RELA:
6513 case R_NDS32_5_RELA:
6514 case R_NDS32_32_RELA:
6515 case R_NDS32_HI20_RELA:
6516 case R_NDS32_LO12S3_RELA:
6517 case R_NDS32_LO12S2_RELA:
6518 case R_NDS32_LO12S2_DP_RELA:
6519 case R_NDS32_LO12S2_SP_RELA:
6520 case R_NDS32_LO12S1_RELA:
6521 case R_NDS32_LO12S0_RELA:
6522 case R_NDS32_LO12S0_ORI_RELA:
6523 case R_NDS32_SDA16S3_RELA:
6524 case R_NDS32_SDA17S2_RELA:
6525 case R_NDS32_SDA18S1_RELA:
6526 case R_NDS32_SDA19S0_RELA:
6527 case R_NDS32_SDA15S3_RELA:
6528 case R_NDS32_SDA15S2_RELA:
6529 case R_NDS32_SDA12S2_DP_RELA:
6530 case R_NDS32_SDA12S2_SP_RELA:
6531 case R_NDS32_SDA15S1_RELA:
6532 case R_NDS32_SDA15S0_RELA:
6533 case R_NDS32_SDA_FP7U2_RELA:
6534 case R_NDS32_15_PCREL_RELA:
6535 case R_NDS32_17_PCREL_RELA:
6536 case R_NDS32_25_PCREL_RELA:
6538 if (h != NULL && !bfd_link_pic (info))
6541 h->plt.refcount += 1;
6544 /* If we are creating a shared library, and this is a reloc against
6545 a global symbol, or a non PC relative reloc against a local
6546 symbol, then we need to copy the reloc into the shared library.
6547 However, if we are linking with -Bsymbolic, we do not need to
6548 copy a reloc against a global symbol which is defined in an
6549 object we are including in the link (i.e., DEF_REGULAR is set).
6550 At this point we have not seen all the input files, so it is
6551 possible that DEF_REGULAR is not set now but will be set later
6552 (it is never cleared). We account for that possibility below by
6553 storing information in the dyn_relocs field of the hash table
6554 entry. A similar situation occurs when creating shared libraries
6555 and symbol visibility changes render the symbol local.
6557 If on the other hand, we are creating an executable, we may need
6558 to keep relocations for symbols satisfied by a dynamic library
6559 if we manage to avoid copy relocs for the symbol. */
6560 if ((bfd_link_pic (info)
6561 && (sec->flags & SEC_ALLOC) != 0
6562 && ((r_type != R_NDS32_25_PCREL_RELA
6563 && r_type != R_NDS32_15_PCREL_RELA
6564 && r_type != R_NDS32_17_PCREL_RELA
6565 && !(r_type == R_NDS32_32_RELA
6566 && strcmp (sec->name, ".eh_frame") == 0))
6569 || h->root.type == bfd_link_hash_defweak
6570 || !h->def_regular))))
6571 || (!bfd_link_pic (info)
6572 && (sec->flags & SEC_ALLOC) != 0
6574 && (h->root.type == bfd_link_hash_defweak
6575 || !h->def_regular)))
6577 struct elf_nds32_dyn_relocs *p;
6578 struct elf_nds32_dyn_relocs **head;
6581 htab->root.dynobj = dynobj = abfd;
6583 /* When creating a shared object, we must copy these
6584 relocs into the output file. We create a reloc
6585 section in dynobj and make room for the reloc. */
6590 name = bfd_elf_string_from_elf_section
6591 (abfd, elf_elfheader (abfd)->e_shstrndx,
6592 elf_section_data (sec)->rela.hdr->sh_name);
6596 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
6597 && strcmp (bfd_get_section_name (abfd, sec),
6600 sreloc = bfd_get_section_by_name (dynobj, name);
6605 sreloc = bfd_make_section (dynobj, name);
6606 flags = (SEC_HAS_CONTENTS | SEC_READONLY
6607 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
6608 if ((sec->flags & SEC_ALLOC) != 0)
6609 flags |= SEC_ALLOC | SEC_LOAD;
6611 || !bfd_set_section_flags (dynobj, sreloc, flags)
6612 || !bfd_set_section_alignment (dynobj, sreloc, 2))
6615 elf_section_type (sreloc) = SHT_RELA;
6617 elf_section_data (sec)->sreloc = sreloc;
6620 /* If this is a global symbol, we count the number of
6621 relocations we need for this symbol. */
6623 head = &((struct elf_nds32_link_hash_entry *) h)->dyn_relocs;
6628 Elf_Internal_Sym *isym;
6629 isym = bfd_sym_from_r_symndx (&htab->sym_cache, abfd, r_symndx);
6633 /* Track dynamic relocs needed for local syms too. */
6634 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
6638 head = ((struct elf_nds32_dyn_relocs **)
6639 &elf_section_data (s)->local_dynrel);
6643 if (p == NULL || p->sec != sec)
6645 bfd_size_type amt = sizeof (*p);
6646 p = (struct elf_nds32_dyn_relocs *) bfd_alloc (dynobj, amt);
6657 if (ELF32_R_TYPE (rel->r_info) == R_NDS32_25_PCREL_RELA
6658 || ELF32_R_TYPE (rel->r_info) == R_NDS32_15_PCREL_RELA
6659 || ELF32_R_TYPE (rel->r_info) == R_NDS32_17_PCREL_RELA)
6664 /* This relocation describes the C++ object vtable hierarchy.
6665 Reconstruct it for later use during GC. */
6666 case R_NDS32_RELA_GNU_VTINHERIT:
6667 case R_NDS32_GNU_VTINHERIT:
6668 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6672 /* This relocation describes which C++ vtable entries are actually
6673 used. Record for later use during GC. */
6674 case R_NDS32_GNU_VTENTRY:
6675 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
6678 case R_NDS32_RELA_GNU_VTENTRY:
6679 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6688 /* Write VAL in uleb128 format to P, returning a pointer to the
6690 This code is copied from elf-attr.c. */
6693 write_uleb128 (bfd_byte *p, unsigned int val)
6708 static bfd_signed_vma
6709 calculate_offset (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
6710 Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr,
6711 int *pic_ext_target)
6713 bfd_signed_vma foff;
6714 bfd_vma symval, addend;
6717 /* Get the value of the symbol referred to by the reloc. */
6718 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
6720 Elf_Internal_Sym *isym;
6722 /* A local symbol. */
6723 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6725 if (isym->st_shndx == SHN_UNDEF)
6726 sym_sec = bfd_und_section_ptr;
6727 else if (isym->st_shndx == SHN_ABS)
6728 sym_sec = bfd_abs_section_ptr;
6729 else if (isym->st_shndx == SHN_COMMON)
6730 sym_sec = bfd_com_section_ptr;
6732 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
6733 symval = isym->st_value + sym_sec->output_section->vma
6734 + sym_sec->output_offset;
6739 struct elf_link_hash_entry *h;
6742 /* An external symbol. */
6743 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6744 h = elf_sym_hashes (abfd)[indx];
6745 BFD_ASSERT (h != NULL);
6747 if (h->root.type != bfd_link_hash_defined
6748 && h->root.type != bfd_link_hash_defweak)
6749 /* This appears to be a reference to an undefined
6750 symbol. Just ignore it--it will be caught by the
6751 regular reloc processing. */
6753 owner = h->root.u.def.section->owner;
6754 if (owner && (elf_elfheader (owner)->e_flags & E_NDS32_HAS_PIC))
6755 *pic_ext_target = 1;
6757 if (h->root.u.def.section->flags & SEC_MERGE)
6759 sym_sec = h->root.u.def.section;
6760 symval = _bfd_merged_section_offset (abfd, &sym_sec,
6761 elf_section_data (sym_sec)->sec_info,
6762 h->root.u.def.value);
6763 symval = symval + sym_sec->output_section->vma
6764 + sym_sec->output_offset;
6767 symval = (h->root.u.def.value
6768 + h->root.u.def.section->output_section->vma
6769 + h->root.u.def.section->output_offset);
6772 addend = irel->r_addend;
6774 foff = (symval + addend
6775 - (irel->r_offset + sec->output_section->vma + sec->output_offset));
6780 calculate_plt_memory_address (bfd *abfd, struct bfd_link_info *link_info,
6781 Elf_Internal_Sym *isymbuf,
6782 Elf_Internal_Rela *irel,
6783 Elf_Internal_Shdr *symtab_hdr)
6787 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
6789 Elf_Internal_Sym *isym;
6791 /* A local symbol. */
6792 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6794 if (isym->st_shndx == SHN_UNDEF)
6795 sym_sec = bfd_und_section_ptr;
6796 else if (isym->st_shndx == SHN_ABS)
6797 sym_sec = bfd_abs_section_ptr;
6798 else if (isym->st_shndx == SHN_COMMON)
6799 sym_sec = bfd_com_section_ptr;
6801 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
6802 symval = isym->st_value + sym_sec->output_section->vma
6803 + sym_sec->output_offset;
6808 struct elf_link_hash_entry *h;
6809 struct elf_nds32_link_hash_table *htab;
6812 /* An external symbol. */
6813 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6814 h = elf_sym_hashes (abfd)[indx];
6815 BFD_ASSERT (h != NULL);
6816 htab = nds32_elf_hash_table (link_info);
6819 while (h->root.type == bfd_link_hash_indirect
6820 || h->root.type == bfd_link_hash_warning)
6821 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6823 if (h->plt.offset == (bfd_vma) - 1)
6825 if (h->root.type != bfd_link_hash_defined
6826 && h->root.type != bfd_link_hash_defweak)
6827 /* This appears to be a reference to an undefined
6828 * symbol. Just ignore it--it will be caught by the
6829 * regular reloc processing. */
6831 symval = (h->root.u.def.value
6832 + h->root.u.def.section->output_section->vma
6833 + h->root.u.def.section->output_offset);
6836 symval = splt->output_section->vma + h->plt.offset;
6842 static bfd_signed_vma
6843 calculate_plt_offset (bfd *abfd, asection *sec, struct bfd_link_info *link_info,
6844 Elf_Internal_Sym *isymbuf, Elf_Internal_Rela *irel,
6845 Elf_Internal_Shdr *symtab_hdr)
6848 if ((foff = calculate_plt_memory_address (abfd, link_info, isymbuf, irel,
6852 return foff - (irel->r_offset
6853 + sec->output_section->vma + sec->output_offset);
6856 /* Convert a 32-bit instruction to 16-bit one.
6857 INSN is the input 32-bit instruction, INSN16 is the output 16-bit
6858 instruction. If INSN_TYPE is not NULL, it the CGEN instruction
6859 type of INSN16. Return 1 if successful. */
6862 nds32_convert_32_to_16_alu1 (bfd *abfd, uint32_t insn, uint16_t *pinsn16,
6865 uint16_t insn16 = 0;
6867 unsigned long mach = bfd_get_mach (abfd);
6869 if (N32_SH5 (insn) != 0)
6872 switch (N32_SUB5 (insn))
6874 case N32_ALU1_ADD_SLLI:
6875 case N32_ALU1_ADD_SRLI:
6876 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IS_RB3 (insn))
6878 insn16 = N16_TYPE333 (ADD333, N32_RT5 (insn), N32_RA5 (insn),
6880 insn_type = NDS32_INSN_ADD333;
6882 else if (N32_IS_RT4 (insn))
6884 if (N32_RT5 (insn) == N32_RA5 (insn))
6885 insn16 = N16_TYPE45 (ADD45, N32_RT54 (insn), N32_RB5 (insn));
6886 else if (N32_RT5 (insn) == N32_RB5 (insn))
6887 insn16 = N16_TYPE45 (ADD45, N32_RT54 (insn), N32_RA5 (insn));
6888 insn_type = NDS32_INSN_ADD45;
6892 case N32_ALU1_SUB_SLLI:
6893 case N32_ALU1_SUB_SRLI:
6894 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IS_RB3 (insn))
6896 insn16 = N16_TYPE333 (SUB333, N32_RT5 (insn), N32_RA5 (insn),
6898 insn_type = NDS32_INSN_SUB333;
6900 else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn))
6902 insn16 = N16_TYPE45 (SUB45, N32_RT54 (insn), N32_RB5 (insn));
6903 insn_type = NDS32_INSN_SUB45;
6907 case N32_ALU1_AND_SLLI:
6908 case N32_ALU1_AND_SRLI:
6909 /* and $rt, $rt, $rb -> and33 for v3, v3m. */
6910 if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn)
6911 && N32_IS_RB3 (insn))
6913 if (N32_RT5 (insn) == N32_RA5 (insn))
6914 insn16 = N16_MISC33 (AND33, N32_RT5 (insn), N32_RB5 (insn));
6915 else if (N32_RT5 (insn) == N32_RB5 (insn))
6916 insn16 = N16_MISC33 (AND33, N32_RT5 (insn), N32_RA5 (insn));
6918 insn_type = NDS32_INSN_AND33;
6922 case N32_ALU1_XOR_SLLI:
6923 case N32_ALU1_XOR_SRLI:
6924 /* xor $rt, $rt, $rb -> xor33 for v3, v3m. */
6925 if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn)
6926 && N32_IS_RB3 (insn))
6928 if (N32_RT5 (insn) == N32_RA5 (insn))
6929 insn16 = N16_MISC33 (XOR33, N32_RT5 (insn), N32_RB5 (insn));
6930 else if (N32_RT5 (insn) == N32_RB5 (insn))
6931 insn16 = N16_MISC33 (XOR33, N32_RT5 (insn), N32_RA5 (insn));
6933 insn_type = NDS32_INSN_XOR33;
6937 case N32_ALU1_OR_SLLI:
6938 case N32_ALU1_OR_SRLI:
6939 /* or $rt, $rt, $rb -> or33 for v3, v3m. */
6940 if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn)
6941 && N32_IS_RB3 (insn))
6943 if (N32_RT5 (insn) == N32_RA5 (insn))
6944 insn16 = N16_MISC33 (OR33, N32_RT5 (insn), N32_RB5 (insn));
6945 else if (N32_RT5 (insn) == N32_RB5 (insn))
6946 insn16 = N16_MISC33 (OR33, N32_RT5 (insn), N32_RA5 (insn));
6948 insn_type = NDS32_INSN_OR33;
6952 /* nor $rt, $ra, $ra -> not33 for v3, v3m. */
6953 if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RB3 (insn)
6954 && N32_RA5 (insn) == N32_RB5 (insn))
6956 insn16 = N16_MISC33 (NOT33, N32_RT5 (insn), N32_RA5 (insn));
6957 insn_type = NDS32_INSN_NOT33;
6961 if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn))
6963 insn16 = N16_TYPE45 (SRAI45, N32_RT54 (insn), N32_UB5 (insn));
6964 insn_type = NDS32_INSN_SRAI45;
6969 if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn))
6971 insn16 = N16_TYPE45 (SRLI45, N32_RT54 (insn), N32_UB5 (insn));
6972 insn_type = NDS32_INSN_SRLI45;
6977 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_UB5 (insn) < 8)
6979 insn16 = N16_TYPE333 (SLLI333, N32_RT5 (insn), N32_RA5 (insn),
6981 insn_type = NDS32_INSN_SLLI333;
6986 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn))
6988 insn16 = N16_BFMI333 (ZEH33, N32_RT5 (insn), N32_RA5 (insn));
6989 insn_type = NDS32_INSN_ZEH33;
6994 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn))
6996 insn16 = N16_BFMI333 (SEB33, N32_RT5 (insn), N32_RA5 (insn));
6997 insn_type = NDS32_INSN_SEB33;
7002 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn))
7004 insn16 = N16_BFMI333 (SEH33, N32_RT5 (insn), N32_RA5 (insn));
7005 insn_type = NDS32_INSN_SEH33;
7010 if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn))
7013 insn16 = N16_TYPE45 (SLT45, N32_RA54 (insn), N32_RB5 (insn));
7014 insn_type = NDS32_INSN_SLT45;
7019 if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn))
7022 insn16 = N16_TYPE45 (SLTS45, N32_RA54 (insn), N32_RB5 (insn));
7023 insn_type = NDS32_INSN_SLTS45;
7028 if ((insn16 & 0x8000) == 0)
7034 *pinsn_type = insn_type;
7039 nds32_convert_32_to_16_alu2 (bfd *abfd, uint32_t insn, uint16_t *pinsn16,
7042 uint16_t insn16 = 0;
7044 unsigned long mach = bfd_get_mach (abfd);
7046 /* TODO: bset, bclr, btgl, btst. */
7047 if (__GF (insn, 6, 4) != 0)
7050 switch (N32_IMMU (insn, 6))
7053 if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn)
7054 && N32_IS_RB3 (insn))
7056 if (N32_RT5 (insn) == N32_RA5 (insn))
7057 insn16 = N16_MISC33 (MUL33, N32_RT5 (insn), N32_RB5 (insn));
7058 else if (N32_RT5 (insn) == N32_RB5 (insn))
7059 insn16 = N16_MISC33 (MUL33, N32_RT5 (insn), N32_RA5 (insn));
7061 insn_type = NDS32_INSN_MUL33;
7065 if ((insn16 & 0x8000) == 0)
7071 *pinsn_type = insn_type;
7076 nds32_convert_32_to_16 (bfd *abfd, uint32_t insn, uint16_t *pinsn16,
7080 uint16_t insn16 = 0;
7082 unsigned long mach = bfd_get_mach (abfd);
7084 /* Decode 32-bit instruction. */
7085 if (insn & 0x80000000)
7087 /* Not 32-bit insn. */
7091 op6 = N32_OP6 (insn);
7093 /* Convert it to 16-bit instruction. */
7097 if (IS_WITHIN_S (N32_IMM20S (insn), 5))
7099 insn16 = N16_TYPE55 (MOVI55, N32_RT5 (insn), N32_IMM20S (insn));
7100 insn_type = NDS32_INSN_MOVI55;
7102 else if (mach >= MACH_V3 && N32_IMM20S (insn) >= 16
7103 && N32_IMM20S (insn) < 48 && N32_IS_RT4 (insn))
7105 insn16 = N16_TYPE45 (MOVPI45, N32_RT54 (insn),
7106 N32_IMM20S (insn) - 16);
7107 insn_type = NDS32_INSN_MOVPI45;
7112 if (N32_IMM15S (insn) == 0)
7114 /* Do not convert `addi $sp, $sp, 0' to `mov55 $sp, $sp',
7115 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7117 || N32_RT5 (insn) != REG_SP || N32_RA5 (insn) != REG_SP)
7119 insn16 = N16_TYPE55 (MOV55, N32_RT5 (insn), N32_RA5 (insn));
7120 insn_type = NDS32_INSN_MOV55;
7123 else if (N32_IMM15S (insn) > 0)
7125 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IMM15S (insn) < 8)
7127 insn16 = N16_TYPE333 (ADDI333, N32_RT5 (insn), N32_RA5 (insn),
7129 insn_type = NDS32_INSN_ADDI333;
7131 else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)
7132 && N32_IMM15S (insn) < 32)
7134 insn16 = N16_TYPE45 (ADDI45, N32_RT54 (insn), N32_IMM15S (insn));
7135 insn_type = NDS32_INSN_ADDI45;
7137 else if (mach >= MACH_V2 && N32_RT5 (insn) == REG_SP
7138 && N32_RT5 (insn) == N32_RA5 (insn)
7139 && N32_IMM15S (insn) < 512)
7141 insn16 = N16_TYPE10 (ADDI10S, N32_IMM15S (insn));
7142 insn_type = NDS32_INSN_ADDI10_SP;
7144 else if (mach >= MACH_V3 && N32_IS_RT3 (insn)
7145 && N32_RA5 (insn) == REG_SP && N32_IMM15S (insn) < 256
7146 && (N32_IMM15S (insn) % 4 == 0))
7148 insn16 = N16_TYPE36 (ADDRI36_SP, N32_RT5 (insn),
7149 N32_IMM15S (insn) >> 2);
7150 insn_type = NDS32_INSN_ADDRI36_SP;
7156 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IMM15S (insn) > -8)
7158 insn16 = N16_TYPE333 (SUBI333, N32_RT5 (insn), N32_RA5 (insn),
7159 0 - N32_IMM15S (insn));
7160 insn_type = NDS32_INSN_SUBI333;
7162 else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)
7163 && N32_IMM15S (insn) > -32)
7165 insn16 = N16_TYPE45 (SUBI45, N32_RT54 (insn),
7166 0 - N32_IMM15S (insn));
7167 insn_type = NDS32_INSN_SUBI45;
7169 else if (mach >= MACH_V2 && N32_RT5 (insn) == REG_SP
7170 && N32_RT5 (insn) == N32_RA5 (insn)
7171 && N32_IMM15S (insn) >= -512)
7173 insn16 = N16_TYPE10 (ADDI10S, N32_IMM15S (insn));
7174 insn_type = NDS32_INSN_ADDI10_SP;
7180 if (N32_IMM15S (insn) == 0)
7182 /* Do not convert `ori $sp, $sp, 0' to `mov55 $sp, $sp',
7183 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7185 || N32_RT5 (insn) != REG_SP || N32_RA5 (insn) != REG_SP)
7187 insn16 = N16_TYPE55 (MOV55, N32_RT5 (insn), N32_RA5 (insn));
7188 insn_type = NDS32_INSN_MOV55;
7194 if (mach >= MACH_V3 && N32_IS_RT3 (insn)
7195 && N32_IS_RA3 (insn) && N32_IMM15S (insn) == 0)
7197 insn16 = N16_MISC33 (NEG33, N32_RT5 (insn), N32_RA5 (insn));
7198 insn_type = NDS32_INSN_NEG33;
7203 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn))
7205 if (N32_IMM15U (insn) == 1)
7207 insn16 = N16_BFMI333 (XLSB33, N32_RT5 (insn), N32_RA5 (insn));
7208 insn_type = NDS32_INSN_XLSB33;
7210 else if (N32_IMM15U (insn) == 0x7ff)
7212 insn16 = N16_BFMI333 (X11B33, N32_RT5 (insn), N32_RA5 (insn));
7213 insn_type = NDS32_INSN_X11B33;
7215 else if (N32_IMM15U (insn) == 0xff)
7217 insn16 = N16_BFMI333 (ZEB33, N32_RT5 (insn), N32_RA5 (insn));
7218 insn_type = NDS32_INSN_ZEB33;
7220 else if (mach >= MACH_V3 && N32_RT5 (insn) == N32_RA5 (insn)
7221 && N32_IMM15U (insn) < 256)
7223 int imm15u = N32_IMM15U (insn);
7225 if (__builtin_popcount (imm15u) == 1)
7228 int imm3u = __builtin_ctz (imm15u);
7230 insn16 = N16_BFMI333 (BMSKI33, N32_RT5 (insn), imm3u);
7231 insn_type = NDS32_INSN_BMSKI33;
7233 else if (imm15u != 0 && __builtin_popcount (imm15u + 1) == 1)
7236 int imm3u = __builtin_ctz (imm15u + 1) - 1;
7238 insn16 = N16_BFMI333 (FEXTI33, N32_RT5 (insn), imm3u);
7239 insn_type = NDS32_INSN_FEXTI33;
7246 if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn)
7247 && IS_WITHIN_U (N32_IMM15S (insn), 5))
7249 insn16 = N16_TYPE45 (SLTI45, N32_RA54 (insn), N32_IMM15S (insn));
7250 insn_type = NDS32_INSN_SLTI45;
7255 if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn)
7256 && IS_WITHIN_U (N32_IMM15S (insn), 5))
7258 insn16 = N16_TYPE45 (SLTSI45, N32_RA54 (insn), N32_IMM15S (insn));
7259 insn_type = NDS32_INSN_SLTSI45;
7264 if (N32_IS_RT4 (insn) && N32_IMM15S (insn) == 0)
7266 insn16 = N16_TYPE45 (LWI450, N32_RT54 (insn), N32_RA5 (insn));
7267 insn_type = NDS32_INSN_LWI450;
7269 else if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)
7270 && IS_WITHIN_U (N32_IMM15S (insn), 3))
7272 insn16 = N16_TYPE333 (LWI333, N32_RT5 (insn), N32_RA5 (insn),
7274 insn_type = NDS32_INSN_LWI333;
7276 else if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_FP
7277 && IS_WITHIN_U (N32_IMM15S (insn), 7))
7279 insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM15S (insn));
7280 insn_type = NDS32_INSN_LWI37;
7282 else if (mach >= MACH_V2 && N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_SP
7283 && IS_WITHIN_U (N32_IMM15S (insn), 7))
7285 insn16 = N16_TYPE37 (XWI37SP, N32_RT5 (insn), 0, N32_IMM15S (insn));
7286 insn_type = NDS32_INSN_LWI37_SP;
7288 else if (mach >= MACH_V2 && N32_IS_RT4 (insn) && N32_RA5 (insn) == REG_R8
7289 && -32 <= N32_IMM15S (insn) && N32_IMM15S (insn) < 0)
7291 insn16 = N16_TYPE45 (LWI45_FE, N32_RT54 (insn),
7292 N32_IMM15S (insn) + 32);
7293 insn_type = NDS32_INSN_LWI45_FE;
7298 if (N32_IS_RT4 (insn) && N32_IMM15S (insn) == 0)
7300 insn16 = N16_TYPE45 (SWI450, N32_RT54 (insn), N32_RA5 (insn));
7301 insn_type = NDS32_INSN_SWI450;
7303 else if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)
7304 && IS_WITHIN_U (N32_IMM15S (insn), 3))
7306 insn16 = N16_TYPE333 (SWI333, N32_RT5 (insn), N32_RA5 (insn),
7308 insn_type = NDS32_INSN_SWI333;
7310 else if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_FP
7311 && IS_WITHIN_U (N32_IMM15S (insn), 7))
7313 insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM15S (insn));
7314 insn_type = NDS32_INSN_SWI37;
7316 else if (mach >= MACH_V2 && N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_SP
7317 && IS_WITHIN_U (N32_IMM15S (insn), 7))
7319 insn16 = N16_TYPE37 (XWI37SP, N32_RT5 (insn), 1, N32_IMM15S (insn));
7320 insn_type = NDS32_INSN_SWI37_SP;
7324 case N32_OP6_LWI_BI:
7325 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)
7326 && IS_WITHIN_U (N32_IMM15S (insn), 3))
7328 insn16 = N16_TYPE333 (LWI333_BI, N32_RT5 (insn), N32_RA5 (insn),
7330 insn_type = NDS32_INSN_LWI333_BI;
7334 case N32_OP6_SWI_BI:
7335 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)
7336 && IS_WITHIN_U (N32_IMM15S (insn), 3))
7338 insn16 = N16_TYPE333 (SWI333_BI, N32_RT5 (insn), N32_RA5 (insn),
7340 insn_type = NDS32_INSN_SWI333_BI;
7345 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)
7346 && IS_WITHIN_U (N32_IMM15S (insn), 3))
7348 insn16 = N16_TYPE333 (LHI333, N32_RT5 (insn), N32_RA5 (insn),
7350 insn_type = NDS32_INSN_LHI333;
7355 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)
7356 && IS_WITHIN_U (N32_IMM15S (insn), 3))
7358 insn16 = N16_TYPE333 (SHI333, N32_RT5 (insn), N32_RA5 (insn),
7360 insn_type = NDS32_INSN_SHI333;
7365 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)
7366 && IS_WITHIN_U (N32_IMM15S (insn), 3))
7368 insn16 = N16_TYPE333 (LBI333, N32_RT5 (insn), N32_RA5 (insn),
7370 insn_type = NDS32_INSN_LBI333;
7375 if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)
7376 && IS_WITHIN_U (N32_IMM15S (insn), 3))
7378 insn16 = N16_TYPE333 (SBI333, N32_RT5 (insn), N32_RA5 (insn),
7380 insn_type = NDS32_INSN_SBI333;
7385 return nds32_convert_32_to_16_alu1 (abfd, insn, pinsn16, pinsn_type);
7388 return nds32_convert_32_to_16_alu2 (abfd, insn, pinsn16, pinsn_type);
7391 if (!IS_WITHIN_S (N32_IMM14S (insn), 8))
7394 if ((insn & __BIT (14)) == 0)
7397 if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5
7398 && N32_RT5 (insn) != REG_R5)
7399 insn16 = N16_TYPE38 (BEQS38, N32_RT5 (insn), N32_IMM14S (insn));
7400 else if (N32_IS_RA3 (insn) && N32_RT5 (insn) == REG_R5
7401 && N32_RA5 (insn) != REG_R5)
7402 insn16 = N16_TYPE38 (BEQS38, N32_RA5 (insn), N32_IMM14S (insn));
7403 insn_type = NDS32_INSN_BEQS38;
7409 if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5
7410 && N32_RT5 (insn) != REG_R5)
7411 insn16 = N16_TYPE38 (BNES38, N32_RT5 (insn), N32_IMM14S (insn));
7412 else if (N32_IS_RA3 (insn) && N32_RT5 (insn) == REG_R5
7413 && N32_RA5 (insn) != REG_R5)
7414 insn16 = N16_TYPE38 (BNES38, N32_RA5 (insn), N32_IMM14S (insn));
7415 insn_type = NDS32_INSN_BNES38;
7421 switch (N32_BR2_SUB (insn))
7424 if (N32_IS_RT3 (insn) && IS_WITHIN_S (N32_IMM16S (insn), 8))
7426 insn16 = N16_TYPE38 (BEQZ38, N32_RT5 (insn), N32_IMM16S (insn));
7427 insn_type = NDS32_INSN_BEQZ38;
7429 else if (N32_RT5 (insn) == REG_R15
7430 && IS_WITHIN_S (N32_IMM16S (insn), 8))
7432 insn16 = N16_TYPE8 (BEQZS8, N32_IMM16S (insn));
7433 insn_type = NDS32_INSN_BEQZS8;
7438 if (N32_IS_RT3 (insn) && IS_WITHIN_S (N32_IMM16S (insn), 8))
7440 insn16 = N16_TYPE38 (BNEZ38, N32_RT5 (insn), N32_IMM16S (insn));
7441 insn_type = NDS32_INSN_BNEZ38;
7443 else if (N32_RT5 (insn) == REG_R15
7444 && IS_WITHIN_S (N32_IMM16S (insn), 8))
7446 insn16 = N16_TYPE8 (BNEZS8, N32_IMM16S (insn));
7447 insn_type = NDS32_INSN_BNEZS8;
7451 case N32_BR2_IFCALL:
7452 if (IS_WITHIN_U (N32_IMM16S (insn), 9))
7454 insn16 = N16_TYPE9 (IFCALL9, N32_IMM16S (insn));
7455 insn_type = NDS32_INSN_IFCALL9;
7462 if ((insn & __BIT (24)) == 0)
7465 if (IS_WITHIN_S (N32_IMM24S (insn), 8))
7467 insn16 = N16_TYPE8 (J8, N32_IMM24S (insn));
7468 insn_type = NDS32_INSN_J8;
7474 if (__GF (insn, 8, 2) != 0)
7477 switch (N32_IMMU (insn, 5))
7480 if (N32_JREG_HINT (insn) == 0)
7483 insn16 = N16_TYPE5 (JR5, N32_RB5 (insn));
7484 insn_type = NDS32_INSN_JR5;
7486 else if (N32_JREG_HINT (insn) == 1)
7489 insn16 = N16_TYPE5 (RET5, N32_RB5 (insn));
7490 insn_type = NDS32_INSN_RET5;
7492 else if (N32_JREG_HINT (insn) == 3)
7494 /* ifret = mov55 $sp, $sp */
7495 insn16 = N16_TYPE55 (MOV55, REG_SP, REG_SP);
7496 insn_type = NDS32_INSN_IFRET;
7501 /* It's convertible when return rt5 is $lp and address
7502 translation is kept. */
7503 if (N32_RT5 (insn) == REG_LP && N32_JREG_HINT (insn) == 0)
7505 insn16 = N16_TYPE5 (JRAL5, N32_RB5 (insn));
7506 insn_type = NDS32_INSN_JRAL5;
7513 if (N32_SUB5 (insn) == N32_MISC_BREAK && N32_SWID (insn) < 32)
7515 /* For v3, swid above 31 are used for ex9.it. */
7516 insn16 = N16_TYPE5 (BREAK16, N32_SWID (insn));
7517 insn_type = NDS32_INSN_BREAK16;
7522 /* This instruction has no 16-bit variant. */
7527 /* Bit-15 of insn16 should be set for a valid instruction. */
7528 if ((insn16 & 0x8000) == 0)
7534 *pinsn_type = insn_type;
7539 special_convert_32_to_16 (unsigned long insn, uint16_t *pinsn16,
7540 Elf_Internal_Rela *reloc)
7542 uint16_t insn16 = 0;
7544 if ((reloc->r_addend & R_NDS32_INSN16_FP7U2_FLAG) == 0
7545 || (ELF32_R_TYPE (reloc->r_info) != R_NDS32_INSN16))
7548 if (!N32_IS_RT3 (insn))
7551 switch (N32_OP6 (insn))
7554 if (N32_RA5 (insn) == REG_GP && IS_WITHIN_U (N32_IMM15S (insn), 7))
7555 insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM15S (insn));
7558 if (N32_RA5 (insn) == REG_GP && IS_WITHIN_U (N32_IMM15S (insn), 7))
7559 insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM15S (insn));
7562 if (!IS_WITHIN_U (N32_IMM17S (insn), 7))
7565 if (__GF (insn, 17, 3) == 6)
7566 insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM17S (insn));
7567 else if (__GF (insn, 17, 3) == 7)
7568 insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM17S (insn));
7572 if ((insn16 & 0x8000) == 0)
7579 /* Convert a 16-bit instruction to 32-bit one.
7580 INSN16 it the input and PINSN it the point to output.
7581 Return non-zero on successful. Otherwise 0 is returned. */
7584 nds32_convert_16_to_32 (bfd *abfd, uint16_t insn16, uint32_t *pinsn)
7586 uint32_t insn = 0xffffffff;
7587 unsigned long mach = bfd_get_mach (abfd);
7589 /* NOTE: push25, pop25 and movd44 do not have 32-bit variants. */
7591 switch (__GF (insn16, 9, 6))
7593 case 0x4: /* add45 */
7594 insn = N32_ALU1 (ADD, N16_RT4 (insn16), N16_RT4 (insn16),
7597 case 0x5: /* sub45 */
7598 insn = N32_ALU1 (SUB, N16_RT4 (insn16), N16_RT4 (insn16),
7601 case 0x6: /* addi45 */
7602 insn = N32_TYPE2 (ADDI, N16_RT4 (insn16), N16_RT4 (insn16),
7603 N16_IMM5U (insn16));
7605 case 0x7: /* subi45 */
7606 insn = N32_TYPE2 (ADDI, N16_RT4 (insn16), N16_RT4 (insn16),
7607 -N16_IMM5U (insn16));
7609 case 0x8: /* srai45 */
7610 insn = N32_ALU1 (SRAI, N16_RT4 (insn16), N16_RT4 (insn16),
7611 N16_IMM5U (insn16));
7613 case 0x9: /* srli45 */
7614 insn = N32_ALU1 (SRLI, N16_RT4 (insn16), N16_RT4 (insn16),
7615 N16_IMM5U (insn16));
7617 case 0xa: /* slli333 */
7618 insn = N32_ALU1 (SLLI, N16_RT3 (insn16), N16_RA3 (insn16),
7619 N16_IMM3U (insn16));
7621 case 0xc: /* add333 */
7622 insn = N32_ALU1 (ADD, N16_RT3 (insn16), N16_RA3 (insn16),
7625 case 0xd: /* sub333 */
7626 insn = N32_ALU1 (SUB, N16_RT3 (insn16), N16_RA3 (insn16),
7629 case 0xe: /* addi333 */
7630 insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), N16_RA3 (insn16),
7631 N16_IMM3U (insn16));
7633 case 0xf: /* subi333 */
7634 insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), N16_RA3 (insn16),
7635 -N16_IMM3U (insn16));
7637 case 0x10: /* lwi333 */
7638 insn = N32_TYPE2 (LWI, N16_RT3 (insn16), N16_RA3 (insn16),
7639 N16_IMM3U (insn16));
7641 case 0x12: /* lhi333 */
7642 insn = N32_TYPE2 (LHI, N16_RT3 (insn16), N16_RA3 (insn16),
7643 N16_IMM3U (insn16));
7645 case 0x13: /* lbi333 */
7646 insn = N32_TYPE2 (LBI, N16_RT3 (insn16), N16_RA3 (insn16),
7647 N16_IMM3U (insn16));
7649 case 0x11: /* lwi333.bi */
7650 insn = N32_TYPE2 (LWI_BI, N16_RT3 (insn16), N16_RA3 (insn16),
7651 N16_IMM3U (insn16));
7653 case 0x14: /* swi333 */
7654 insn = N32_TYPE2 (SWI, N16_RT3 (insn16), N16_RA3 (insn16),
7655 N16_IMM3U (insn16));
7657 case 0x16: /* shi333 */
7658 insn = N32_TYPE2 (SHI, N16_RT3 (insn16), N16_RA3 (insn16),
7659 N16_IMM3U (insn16));
7661 case 0x17: /* sbi333 */
7662 insn = N32_TYPE2 (SBI, N16_RT3 (insn16), N16_RA3 (insn16),
7663 N16_IMM3U (insn16));
7665 case 0x15: /* swi333.bi */
7666 insn = N32_TYPE2 (SWI_BI, N16_RT3 (insn16), N16_RA3 (insn16),
7667 N16_IMM3U (insn16));
7669 case 0x18: /* addri36.sp */
7670 insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), REG_SP,
7671 N16_IMM6U (insn16) << 2);
7673 case 0x19: /* lwi45.fe */
7674 insn = N32_TYPE2 (LWI, N16_RT4 (insn16), REG_R8,
7675 (N16_IMM5U (insn16) - 32));
7677 case 0x1a: /* lwi450 */
7678 insn = N32_TYPE2 (LWI, N16_RT4 (insn16), N16_RA5 (insn16), 0);
7680 case 0x1b: /* swi450 */
7681 insn = N32_TYPE2 (SWI, N16_RT4 (insn16), N16_RA5 (insn16), 0);
7684 /* These are r15 implied instructions. */
7685 case 0x30: /* slts45 */
7686 insn = N32_ALU1 (SLTS, REG_TA, N16_RT4 (insn16), N16_RA5 (insn16));
7688 case 0x31: /* slt45 */
7689 insn = N32_ALU1 (SLT, REG_TA, N16_RT4 (insn16), N16_RA5 (insn16));
7691 case 0x32: /* sltsi45 */
7692 insn = N32_TYPE2 (SLTSI, REG_TA, N16_RT4 (insn16), N16_IMM5U (insn16));
7694 case 0x33: /* slti45 */
7695 insn = N32_TYPE2 (SLTI, REG_TA, N16_RT4 (insn16), N16_IMM5U (insn16));
7697 case 0x34: /* beqzs8, bnezs8 */
7698 if (insn16 & __BIT (8))
7699 insn = N32_BR2 (BNEZ, REG_TA, N16_IMM8S (insn16));
7701 insn = N32_BR2 (BEQZ, REG_TA, N16_IMM8S (insn16));
7704 case 0x35: /* break16, ex9.it */
7705 /* Only consider range of v3 break16. */
7706 insn = N32_TYPE0 (MISC, (N16_IMM5U (insn16) << 5) | N32_MISC_BREAK);
7709 case 0x3c: /* ifcall9 */
7710 insn = N32_BR2 (IFCALL, 0, N16_IMM9U (insn16));
7712 case 0x3d: /* movpi45 */
7713 insn = N32_TYPE1 (MOVI, N16_RT4 (insn16), N16_IMM5U (insn16) + 16);
7716 case 0x3f: /* MISC33 */
7717 switch (insn16 & 0x7)
7720 insn = N32_TYPE2 (SUBRI, N16_RT3 (insn16), N16_RA3 (insn16), 0);
7723 insn = N32_ALU1 (NOR, N16_RT3 (insn16), N16_RA3 (insn16),
7727 insn = N32_ALU2 (MUL, N16_RT3 (insn16), N16_RT3 (insn16),
7731 insn = N32_ALU1 (XOR, N16_RT3 (insn16), N16_RT3 (insn16),
7735 insn = N32_ALU1 (AND, N16_RT3 (insn16), N16_RT3 (insn16),
7739 insn = N32_ALU1 (OR, N16_RT3 (insn16), N16_RT3 (insn16),
7746 switch (insn16 & 0x7)
7749 insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 0xff);
7752 insn = N32_ALU1 (ZEH, N16_RT3 (insn16), N16_RA3 (insn16), 0);
7755 insn = N32_ALU1 (SEB, N16_RT3 (insn16), N16_RA3 (insn16), 0);
7758 insn = N32_ALU1 (SEH, N16_RT3 (insn16), N16_RA3 (insn16), 0);
7760 case 4: /* xlsb33 */
7761 insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 1);
7763 case 5: /* x11b33 */
7764 insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 0x7ff);
7766 case 6: /* bmski33 */
7767 insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RT3 (insn16),
7768 1 << __GF (insn16, 3, 3));
7770 case 7: /* fexti33 */
7771 insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RT3 (insn16),
7772 (1 << (__GF (insn16, 3, 3) + 1)) - 1);
7778 switch (__GF (insn16, 10, 5))
7780 case 0x0: /* mov55 or ifret16 */
7781 if (mach >= MACH_V3 && N16_RT5 (insn16) == REG_SP
7782 && N16_RT5 (insn16) == N16_RA5 (insn16))
7783 insn = N32_JREG (JR, 0, 0, 0, 3);
7785 insn = N32_TYPE2 (ADDI, N16_RT5 (insn16), N16_RA5 (insn16), 0);
7787 case 0x1: /* movi55 */
7788 insn = N32_TYPE1 (MOVI, N16_RT5 (insn16), N16_IMM5S (insn16));
7790 case 0x1b: /* addi10s (V2) */
7791 insn = N32_TYPE2 (ADDI, REG_SP, REG_SP, N16_IMM10S (insn16));
7795 switch (__GF (insn16, 11, 4))
7797 case 0x7: /* lwi37.fp/swi37.fp */
7798 if (insn16 & __BIT (7)) /* swi37.fp */
7799 insn = N32_TYPE2 (SWI, N16_RT38 (insn16), REG_FP, N16_IMM7U (insn16));
7801 insn = N32_TYPE2 (LWI, N16_RT38 (insn16), REG_FP, N16_IMM7U (insn16));
7803 case 0x8: /* beqz38 */
7804 insn = N32_BR2 (BEQZ, N16_RT38 (insn16), N16_IMM8S (insn16));
7806 case 0x9: /* bnez38 */
7807 insn = N32_BR2 (BNEZ, N16_RT38 (insn16), N16_IMM8S (insn16));
7809 case 0xa: /* beqs38/j8, implied r5 */
7810 if (N16_RT38 (insn16) == 5)
7811 insn = N32_JI (J, N16_IMM8S (insn16));
7813 insn = N32_BR1 (BEQ, N16_RT38 (insn16), REG_R5, N16_IMM8S (insn16));
7815 case 0xb: /* bnes38 and others */
7816 if (N16_RT38 (insn16) == 5)
7818 switch (__GF (insn16, 5, 3))
7821 insn = N32_JREG (JR, 0, N16_RA5 (insn16), 0, 0);
7824 insn = N32_JREG (JR, 0, N16_RA5 (insn16), 0, 1);
7827 insn = N32_JREG (JRAL, REG_LP, N16_RA5 (insn16), 0, 0);
7829 case 2: /* ex9.it imm5 */
7830 /* ex9.it had no 32-bit variantl. */
7832 case 5: /* add5.pc */
7833 /* add5.pc had no 32-bit variantl. */
7838 insn = N32_BR1 (BNE, N16_RT38 (insn16), REG_R5, N16_IMM8S (insn16));
7840 case 0xe: /* lwi37/swi37 */
7841 if (insn16 & (1 << 7)) /* swi37.sp */
7842 insn = N32_TYPE2 (SWI, N16_RT38 (insn16), REG_SP, N16_IMM7U (insn16));
7844 insn = N32_TYPE2 (LWI, N16_RT38 (insn16), REG_SP, N16_IMM7U (insn16));
7849 if (insn & 0x80000000)
7858 is_sda_access_insn (unsigned long insn)
7860 switch (N32_OP6 (insn))
7881 static unsigned long
7882 turn_insn_to_sda_access (uint32_t insn, bfd_signed_vma type, uint32_t *pinsn)
7888 case R_NDS32_GOT_LO12:
7889 case R_NDS32_GOTOFF_LO12:
7890 case R_NDS32_PLTREL_LO12:
7891 case R_NDS32_PLT_GOTREL_LO12:
7892 case R_NDS32_LO12S0_RELA:
7893 switch (N32_OP6 (insn))
7897 oinsn = N32_TYPE1 (LBGP, N32_RT5 (insn), 0);
7901 oinsn = N32_TYPE1 (LBGP, N32_RT5 (insn), __BIT (19));
7905 oinsn = N32_TYPE1 (SBGP, N32_RT5 (insn), 0);
7909 oinsn = N32_TYPE1 (SBGP, N32_RT5 (insn), __BIT (19));
7914 case R_NDS32_LO12S1_RELA:
7915 switch (N32_OP6 (insn))
7919 oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), 0);
7923 oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), __BIT (18));
7927 oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), __BIT (19));
7932 case R_NDS32_LO12S2_RELA:
7933 switch (N32_OP6 (insn))
7937 oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (6, 17, 3));
7941 oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (7, 17, 3));
7946 case R_NDS32_LO12S2_DP_RELA:
7947 case R_NDS32_LO12S2_SP_RELA:
7948 oinsn = (insn & 0x7ff07000) | (REG_GP << 15);
7958 /* Linker hasn't found the correct merge section for non-section symbol
7959 in relax time, this work is left to the function elf_link_input_bfd().
7960 So for non-section symbol, _bfd_merged_section_offset is also needed
7961 to find the correct symbol address. */
7964 nds32_elf_rela_local_sym (bfd *abfd, Elf_Internal_Sym *sym,
7965 asection **psec, Elf_Internal_Rela *rel)
7967 asection *sec = *psec;
7970 relocation = (sec->output_section->vma
7971 + sec->output_offset + sym->st_value);
7972 if ((sec->flags & SEC_MERGE) && sec->sec_info_type == SEC_INFO_TYPE_MERGE)
7974 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
7976 _bfd_merged_section_offset (abfd, psec,
7977 elf_section_data (sec)->sec_info,
7978 sym->st_value + rel->r_addend);
7981 _bfd_merged_section_offset (abfd, psec,
7982 elf_section_data (sec)->sec_info,
7983 sym->st_value) + rel->r_addend;
7987 /* If we have changed the section, and our original section is
7988 marked with SEC_EXCLUDE, it means that the original
7989 SEC_MERGE section has been completely subsumed in some
7990 other SEC_MERGE section. In this case, we need to leave
7991 some info around for --emit-relocs. */
7992 if ((sec->flags & SEC_EXCLUDE) != 0)
7993 sec->kept_section = *psec;
7996 rel->r_addend -= relocation;
7997 rel->r_addend += sec->output_section->vma + sec->output_offset;
8003 calculate_memory_address (bfd *abfd, Elf_Internal_Rela *irel,
8004 Elf_Internal_Sym *isymbuf,
8005 Elf_Internal_Shdr *symtab_hdr)
8007 bfd_signed_vma foff;
8008 bfd_vma symval, addend;
8009 Elf_Internal_Rela irel_fn;
8010 Elf_Internal_Sym *isym;
8013 /* Get the value of the symbol referred to by the reloc. */
8014 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
8016 /* A local symbol. */
8017 isym = isymbuf + ELF32_R_SYM (irel->r_info);
8019 if (isym->st_shndx == SHN_UNDEF)
8020 sym_sec = bfd_und_section_ptr;
8021 else if (isym->st_shndx == SHN_ABS)
8022 sym_sec = bfd_abs_section_ptr;
8023 else if (isym->st_shndx == SHN_COMMON)
8024 sym_sec = bfd_com_section_ptr;
8026 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
8027 memcpy (&irel_fn, irel, sizeof (Elf_Internal_Rela));
8028 symval = nds32_elf_rela_local_sym (abfd, isym, &sym_sec, &irel_fn);
8029 addend = irel_fn.r_addend;
8034 struct elf_link_hash_entry *h;
8036 /* An external symbol. */
8037 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
8038 h = elf_sym_hashes (abfd)[indx];
8039 BFD_ASSERT (h != NULL);
8041 while (h->root.type == bfd_link_hash_indirect
8042 || h->root.type == bfd_link_hash_warning)
8043 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8045 if (h->root.type != bfd_link_hash_defined
8046 && h->root.type != bfd_link_hash_defweak)
8047 /* This appears to be a reference to an undefined
8048 symbol. Just ignore it--it will be caught by the
8049 regular reloc processing. */
8052 if (h->root.u.def.section->flags & SEC_MERGE)
8054 sym_sec = h->root.u.def.section;
8055 symval = _bfd_merged_section_offset (abfd, &sym_sec, elf_section_data
8056 (sym_sec)->sec_info, h->root.u.def.value);
8057 symval = symval + sym_sec->output_section->vma
8058 + sym_sec->output_offset;
8061 symval = (h->root.u.def.value
8062 + h->root.u.def.section->output_section->vma
8063 + h->root.u.def.section->output_offset);
8064 addend = irel->r_addend;
8067 foff = symval + addend;
8073 calculate_got_memory_address (bfd *abfd, struct bfd_link_info *link_info,
8074 Elf_Internal_Rela *irel,
8075 Elf_Internal_Shdr *symtab_hdr)
8078 bfd_vma *local_got_offsets;
8079 /* Get the value of the symbol referred to by the reloc. */
8080 struct elf_link_hash_entry *h;
8081 struct elf_nds32_link_hash_table *htab = nds32_elf_hash_table (link_info);
8083 /* An external symbol. */
8084 symndx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
8085 h = elf_sym_hashes (abfd)[symndx];
8086 while (h->root.type == bfd_link_hash_indirect
8087 || h->root.type == bfd_link_hash_warning)
8088 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8092 BFD_ASSERT (h != NULL);
8093 return htab->sgot->output_section->vma + htab->sgot->output_offset
8098 local_got_offsets = elf_local_got_offsets (abfd);
8099 BFD_ASSERT (local_got_offsets != NULL);
8100 return htab->sgot->output_section->vma + htab->sgot->output_offset
8101 + local_got_offsets[ELF32_R_SYM (irel->r_info)];
8104 /* The _GLOBAL_OFFSET_TABLE_ may be undefweak(or should be?). */
8105 /* The check of h->root.type is passed. */
8109 is_16bit_NOP (bfd *abfd ATTRIBUTE_UNUSED,
8110 asection *sec, Elf_Internal_Rela *rel)
8113 unsigned short insn16;
8115 if (!(rel->r_addend & R_NDS32_INSN16_CONVERT_FLAG))
8117 contents = elf_section_data (sec)->this_hdr.contents;
8118 insn16 = bfd_getb16 (contents + rel->r_offset);
8119 if (insn16 == NDS32_NOP16)
8124 /* It checks whether the instruction could be converted to
8125 16-bit form and returns the converted one.
8127 `internal_relocs' is supposed to be sorted. */
8130 is_convert_32_to_16 (bfd *abfd, asection *sec,
8131 Elf_Internal_Rela *reloc,
8132 Elf_Internal_Rela *internal_relocs,
8133 Elf_Internal_Rela *irelend,
8136 #define NORMAL_32_TO_16 (1 << 0)
8137 #define SPECIAL_32_TO_16 (1 << 1)
8138 bfd_byte *contents = NULL;
8142 Elf_Internal_Rela *pc_rel;
8143 int pic_ext_target = 0;
8144 Elf_Internal_Shdr *symtab_hdr;
8145 Elf_Internal_Sym *isymbuf = NULL;
8149 if (reloc->r_offset + 4 > sec->size)
8152 offset = reloc->r_offset;
8154 if (!nds32_get_section_contents (abfd, sec, &contents, TRUE))
8156 insn = bfd_getb32 (contents + offset);
8158 if (nds32_convert_32_to_16 (abfd, insn, insn16, NULL))
8159 convert_type = NORMAL_32_TO_16;
8160 else if (special_convert_32_to_16 (insn, insn16, reloc))
8161 convert_type = SPECIAL_32_TO_16;
8165 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
8166 if (!nds32_get_local_syms (abfd, sec, &isymbuf))
8169 /* Find the first relocation of the same relocation-type,
8170 so we iteratie them forward. */
8172 while ((pc_rel - 1) >= internal_relocs && pc_rel[-1].r_offset == offset)
8175 for (; pc_rel < irelend && pc_rel->r_offset == offset; pc_rel++)
8177 if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_15_PCREL_RELA
8178 || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17_PCREL_RELA
8179 || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PCREL_RELA
8180 || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PLTREL)
8182 off = calculate_offset (abfd, sec, pc_rel, isymbuf, symtab_hdr,
8184 if (off >= ACCURATE_8BIT_S1 || off < -ACCURATE_8BIT_S1
8189 else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_20_RELA)
8191 /* movi => movi55 */
8192 mem_addr = calculate_memory_address (abfd, pc_rel, isymbuf,
8194 /* mem_addr is unsigned, but the value should
8195 be between [-16, 15]. */
8196 if ((mem_addr + 0x10) >> 5)
8200 else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_TLS_LE_20)
8201 || (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_TLS_LE_LO12))
8203 /* It never happen movi to movi55 for R_NDS32_TLS_LE_20,
8204 because it can be relaxed to addi for TLS_LE_ADD. */
8207 else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA15S2_RELA
8208 || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA17S2_RELA)
8209 && (reloc->r_addend & R_NDS32_INSN16_FP7U2_FLAG)
8210 && convert_type == SPECIAL_32_TO_16)
8213 We've selected a best fp-base for this access, so we can
8214 always resolve it anyway. Do nothing. */
8217 else if ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_NONE
8218 && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_RELA_GNU_VTINHERIT))
8219 || ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_RELA_GNU_VTENTRY)
8220 && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_INSN16))
8221 || ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_LOADSTORE)
8222 && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_DWARF2_OP1_RELA)))
8224 /* Prevent unresolved addi instruction translate
8225 to addi45 or addi333. */
8228 else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17IFC_PCREL_RELA))
8230 off = calculate_offset (abfd, sec, pc_rel, isymbuf, symtab_hdr,
8232 if (off >= ACCURATE_U9BIT_S1 || off <= 0)
8242 nds32_elf_write_16 (bfd *abfd ATTRIBUTE_UNUSED, bfd_byte *contents,
8243 Elf_Internal_Rela *reloc,
8244 Elf_Internal_Rela *internal_relocs,
8245 Elf_Internal_Rela *irelend,
8246 unsigned short insn16)
8248 Elf_Internal_Rela *pc_rel;
8251 offset = reloc->r_offset;
8252 bfd_putb16 (insn16, contents + offset);
8253 /* Find the first relocation of the same relocation-type,
8254 so we iteratie them forward. */
8256 while ((pc_rel - 1) > internal_relocs && pc_rel[-1].r_offset == offset)
8259 for (; pc_rel < irelend && pc_rel->r_offset == offset; pc_rel++)
8261 if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_15_PCREL_RELA
8262 || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17_PCREL_RELA
8263 || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PCREL_RELA)
8266 ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_9_PCREL_RELA);
8268 else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PLTREL)
8270 ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_9_PLTREL);
8271 else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_20_RELA)
8273 ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_5_RELA);
8274 else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA15S2_RELA
8275 || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA17S2_RELA)
8277 ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_SDA_FP7U2_RELA);
8278 else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17IFC_PCREL_RELA))
8280 ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_10IFCU_PCREL_RELA);
8284 /* Find a relocation of type specified by `reloc_type'
8285 of the same r_offset with reloc.
8286 If not found, return irelend.
8288 Assuming relocations are sorted by r_offset,
8289 we find the relocation from `reloc' backward untill relocs,
8290 or find it from `reloc' forward untill irelend. */
8292 static Elf_Internal_Rela *
8293 find_relocs_at_address (Elf_Internal_Rela *reloc,
8294 Elf_Internal_Rela *relocs,
8295 Elf_Internal_Rela *irelend,
8296 enum elf_nds32_reloc_type reloc_type)
8298 Elf_Internal_Rela *rel_t;
8300 /* Find backward. */
8302 rel_t >= relocs && rel_t->r_offset == reloc->r_offset;
8304 if (ELF32_R_TYPE (rel_t->r_info) == reloc_type)
8307 /* We didn't find it backward. Try find it forward. */
8309 rel_t < irelend && rel_t->r_offset == reloc->r_offset;
8311 if (ELF32_R_TYPE (rel_t->r_info) == reloc_type)
8317 /* Find a relocation of specified type and offset.
8318 `reloc' is just a refence point to find a relocation at specified offset.
8319 If not found, return irelend.
8321 Assuming relocations are sorted by r_offset,
8322 we find the relocation from `reloc' backward untill relocs,
8323 or find it from `reloc' forward untill irelend. */
8325 static Elf_Internal_Rela *
8326 find_relocs_at_address_addr (Elf_Internal_Rela *reloc,
8327 Elf_Internal_Rela *relocs,
8328 Elf_Internal_Rela *irelend,
8329 enum elf_nds32_reloc_type reloc_type,
8332 Elf_Internal_Rela *rel_t = NULL;
8334 /* First, we try to find a relocation of offset `offset_p',
8335 and then we use find_relocs_at_address to find specific type. */
8337 if (reloc->r_offset > offset_p)
8339 /* Find backward. */
8341 rel_t >= relocs && rel_t->r_offset > offset_p; rel_t--)
8344 else if (reloc->r_offset < offset_p)
8348 rel_t < irelend && rel_t->r_offset < offset_p; rel_t++)
8355 if (rel_t < relocs || rel_t == irelend || rel_t->r_offset != offset_p)
8358 return find_relocs_at_address (rel_t, relocs, irelend, reloc_type);
8362 nds32_elf_check_dup_relocs (Elf_Internal_Rela *reloc,
8363 Elf_Internal_Rela *internal_relocs,
8364 Elf_Internal_Rela *irelend,
8365 unsigned char reloc_type)
8367 Elf_Internal_Rela *rel_t;
8370 rel_t >= internal_relocs && rel_t->r_offset == reloc->r_offset;
8372 if (ELF32_R_TYPE (rel_t->r_info) == reloc_type)
8374 if (ELF32_R_SYM (rel_t->r_info) == ELF32_R_SYM (reloc->r_info)
8375 && rel_t->r_addend == reloc->r_addend)
8380 for (rel_t = reloc; rel_t < irelend && rel_t->r_offset == reloc->r_offset;
8382 if (ELF32_R_TYPE (rel_t->r_info) == reloc_type)
8384 if (ELF32_R_SYM (rel_t->r_info) == ELF32_R_SYM (reloc->r_info)
8385 && rel_t->r_addend == reloc->r_addend)
8393 typedef struct nds32_elf_blank nds32_elf_blank_t;
8394 struct nds32_elf_blank
8396 /* Where the blank begins. */
8398 /* The size of the blank. */
8400 /* The accumulative size before this blank. */
8402 nds32_elf_blank_t *next;
8403 nds32_elf_blank_t *prev;
8406 static nds32_elf_blank_t *blank_free_list = NULL;
8408 static nds32_elf_blank_t *
8409 create_nds32_elf_blank (bfd_vma offset_p, bfd_vma size_p)
8411 nds32_elf_blank_t *blank_t;
8413 if (blank_free_list)
8415 blank_t = blank_free_list;
8416 blank_free_list = blank_free_list->next;
8419 blank_t = bfd_malloc (sizeof (nds32_elf_blank_t));
8421 if (blank_t == NULL)
8424 blank_t->offset = offset_p;
8425 blank_t->size = size_p;
8426 blank_t->total_size = 0;
8427 blank_t->next = NULL;
8428 blank_t->prev = NULL;
8434 remove_nds32_elf_blank (nds32_elf_blank_t *blank_p)
8436 if (blank_free_list)
8438 blank_free_list->prev = blank_p;
8439 blank_p->next = blank_free_list;
8442 blank_p->next = NULL;
8444 blank_p->prev = NULL;
8445 blank_free_list = blank_p;
8449 clean_nds32_elf_blank (void)
8451 nds32_elf_blank_t *blank_t;
8453 while (blank_free_list)
8455 blank_t = blank_free_list;
8456 blank_free_list = blank_free_list->next;
8461 static nds32_elf_blank_t *
8462 search_nds32_elf_blank (nds32_elf_blank_t *blank_p, bfd_vma addr)
8464 nds32_elf_blank_t *blank_t;
8470 while (blank_t && addr < blank_t->offset)
8471 blank_t = blank_t->prev;
8472 while (blank_t && blank_t->next && addr >= blank_t->next->offset)
8473 blank_t = blank_t->next;
8479 get_nds32_elf_blank_total (nds32_elf_blank_t **blank_p, bfd_vma addr,
8482 nds32_elf_blank_t *blank_t;
8484 blank_t = search_nds32_elf_blank (*blank_p, addr);
8491 if (addr < blank_t->offset + blank_t->size)
8492 return blank_t->total_size + (addr - blank_t->offset);
8494 return blank_t->total_size + blank_t->size;
8498 insert_nds32_elf_blank (nds32_elf_blank_t **blank_p, bfd_vma addr, bfd_vma len)
8500 nds32_elf_blank_t *blank_t, *blank_t2;
8504 *blank_p = create_nds32_elf_blank (addr, len);
8505 return *blank_p ? TRUE : FALSE;
8508 blank_t = search_nds32_elf_blank (*blank_p, addr);
8510 if (blank_t == NULL)
8512 blank_t = create_nds32_elf_blank (addr, len);
8515 while ((*blank_p)->prev != NULL)
8516 *blank_p = (*blank_p)->prev;
8517 blank_t->next = *blank_p;
8518 (*blank_p)->prev = blank_t;
8519 (*blank_p) = blank_t;
8523 if (addr < blank_t->offset + blank_t->size)
8525 if (addr > blank_t->offset + blank_t->size)
8526 blank_t->size = addr - blank_t->offset;
8530 blank_t2 = create_nds32_elf_blank (addr, len);
8535 blank_t->next->prev = blank_t2;
8536 blank_t2->next = blank_t->next;
8538 blank_t2->prev = blank_t;
8539 blank_t->next = blank_t2;
8540 *blank_p = blank_t2;
8547 insert_nds32_elf_blank_recalc_total (nds32_elf_blank_t **blank_p, bfd_vma addr,
8550 nds32_elf_blank_t *blank_t;
8552 if (!insert_nds32_elf_blank (blank_p, addr, len))
8559 blank_t->total_size = 0;
8560 blank_t = blank_t->next;
8565 blank_t->total_size = blank_t->prev->total_size + blank_t->prev->size;
8566 blank_t = blank_t->next;
8573 calc_nds32_blank_total (nds32_elf_blank_t *blank_p)
8575 nds32_elf_blank_t *blank_t;
8576 bfd_vma total_size = 0;
8582 while (blank_t->prev)
8583 blank_t = blank_t->prev;
8586 blank_t->total_size = total_size;
8587 total_size += blank_t->size;
8588 blank_t = blank_t->next;
8593 nds32_elf_relax_delete_blanks (bfd *abfd, asection *sec,
8594 nds32_elf_blank_t *blank_p)
8596 Elf_Internal_Shdr *symtab_hdr; /* Symbol table header of this bfd. */
8597 Elf_Internal_Sym *isym = NULL; /* Symbol table of this bfd. */
8598 Elf_Internal_Sym *isymend; /* Symbol entry iterator. */
8599 unsigned int sec_shndx; /* The section the be relaxed. */
8600 bfd_byte *contents; /* Contents data of iterating section. */
8601 Elf_Internal_Rela *internal_relocs;
8602 Elf_Internal_Rela *irel;
8603 Elf_Internal_Rela *irelend;
8604 struct elf_link_hash_entry **sym_hashes;
8605 struct elf_link_hash_entry **end_hashes;
8606 unsigned int symcount;
8608 nds32_elf_blank_t *blank_t;
8609 nds32_elf_blank_t *blank_t2;
8610 nds32_elf_blank_t *blank_head;
8612 blank_head = blank_t = blank_p;
8613 while (blank_head->prev != NULL)
8614 blank_head = blank_head->prev;
8615 while (blank_t->next != NULL)
8616 blank_t = blank_t->next;
8618 if (blank_t->offset + blank_t->size <= sec->size)
8620 blank_t->next = create_nds32_elf_blank (sec->size + 4, 0);
8621 blank_t->next->prev = blank_t;
8623 if (blank_head->offset > 0)
8625 blank_head->prev = create_nds32_elf_blank (0, 0);
8626 blank_head->prev->next = blank_head;
8627 blank_head = blank_head->prev;
8630 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
8632 /* The deletion must stop at the next ALIGN reloc for an alignment
8633 power larger than the number of bytes we are deleting. */
8635 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
8636 if (!nds32_get_local_syms (abfd, sec, &isym))
8641 isym = bfd_elf_get_elf_syms (abfd, symtab_hdr,
8642 symtab_hdr->sh_info, 0, NULL, NULL, NULL);
8643 symtab_hdr->contents = (bfd_byte *) isym;
8646 if (isym == NULL || symtab_hdr->sh_info == 0)
8649 blank_t = blank_head;
8650 calc_nds32_blank_total (blank_head);
8652 for (sect = abfd->sections; sect != NULL; sect = sect->next)
8654 /* Adjust all the relocs. */
8656 /* Relocations MUST be kept in memory, because relaxation adjust them. */
8657 internal_relocs = _bfd_elf_link_read_relocs (abfd, sect, NULL, NULL,
8658 TRUE /* keep_memory */);
8659 irelend = internal_relocs + sect->reloc_count;
8661 blank_t = blank_head;
8662 blank_t2 = blank_head;
8664 if (!(sect->flags & SEC_RELOC))
8667 nds32_get_section_contents (abfd, sect, &contents, TRUE);
8669 for (irel = internal_relocs; irel < irelend; irel++)
8673 if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_DIFF8
8674 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_DIFF32
8675 && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx)
8677 unsigned long val = 0;
8679 long before, between;
8682 switch (ELF32_R_TYPE (irel->r_info))
8685 offset = bfd_get_8 (abfd, contents + irel->r_offset);
8687 case R_NDS32_DIFF16:
8688 offset = bfd_get_16 (abfd, contents + irel->r_offset);
8690 case R_NDS32_DIFF32:
8691 val = bfd_get_32 (abfd, contents + irel->r_offset);
8692 /* Get the signed bit and mask for the high part. The
8693 gcc will alarm when right shift 32-bit since the
8694 type size of long may be 32-bit. */
8695 mask = 0 - (val >> 31);
8697 offset = (val | (mask - 0xffffffff));
8706 0 |encoded in location|
8707 |------------|-------------------|---------
8709 -- before ---| *****************
8710 --------------------- between ---|
8712 We only care how much data are relax between DIFF,
8715 before = get_nds32_elf_blank_total (&blank_t, irel->r_addend, 0);
8716 between = get_nds32_elf_blank_total (&blank_t,
8717 irel->r_addend + offset, 0);
8718 if (between == before)
8719 goto done_adjust_diff;
8721 switch (ELF32_R_TYPE (irel->r_info))
8724 bfd_put_8 (abfd, offset - (between - before),
8725 contents + irel->r_offset);
8727 case R_NDS32_DIFF16:
8728 bfd_put_16 (abfd, offset - (between - before),
8729 contents + irel->r_offset);
8731 case R_NDS32_DIFF32:
8732 bfd_put_32 (abfd, offset - (between - before),
8733 contents + irel->r_offset);
8737 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_DIFF_ULEB128
8738 && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx)
8741 unsigned int len = 0;
8742 unsigned long before, between;
8745 val = read_unsigned_leb128 (abfd, contents + irel->r_offset,
8748 before = get_nds32_elf_blank_total (&blank_t, irel->r_addend, 0);
8749 between = get_nds32_elf_blank_total (&blank_t,
8750 irel->r_addend + val, 0);
8751 if (between == before)
8752 goto done_adjust_diff;
8754 p = contents + irel->r_offset;
8756 memset (p, 0x80, len);
8758 p = write_uleb128 (p, val - (between - before)) - 1;
8766 raddr = irel->r_offset;
8767 irel->r_offset -= get_nds32_elf_blank_total (&blank_t2,
8770 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE)
8772 if (blank_t2 && blank_t2->next
8773 && (blank_t2->offset > raddr
8774 || blank_t2->next->offset <= raddr))
8775 (*_bfd_error_handler)
8776 (_("%B: %s\n"), abfd,
8777 "Error: search_nds32_elf_blank reports wrong node");
8779 /* Mark reloc in deleted portion as NONE.
8780 For some relocs like R_NDS32_LABEL that doesn't modify the
8781 content in the section. R_NDS32_LABEL doesn't belong to the
8782 instruction in the section, so we should preserve it. */
8783 if (raddr >= blank_t2->offset
8784 && raddr < blank_t2->offset + blank_t2->size
8785 && ELF32_R_TYPE (irel->r_info) != R_NDS32_LABEL
8786 && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_REGION_BEGIN
8787 && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_REGION_END
8788 && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_ENTRY
8789 && ELF32_R_TYPE (irel->r_info) != R_NDS32_SUBTRAHEND
8790 && ELF32_R_TYPE (irel->r_info) != R_NDS32_MINUEND)
8792 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
8798 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE
8799 || ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL
8800 || ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY)
8803 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info
8804 && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx
8805 && ELF_ST_TYPE (isym[ELF32_R_SYM (irel->r_info)].st_info) == STT_SECTION)
8807 if (irel->r_addend <= sec->size)
8809 get_nds32_elf_blank_total (&blank_t, irel->r_addend, 1);
8814 /* Adjust the local symbols defined in this section. */
8815 blank_t = blank_head;
8816 for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
8818 if (isym->st_shndx == sec_shndx)
8820 if (isym->st_value <= sec->size)
8823 bfd_vma orig_addr = isym->st_value;
8825 ahead = get_nds32_elf_blank_total (&blank_t, isym->st_value, 1);
8826 isym->st_value -= ahead;
8828 /* Adjust function size. */
8829 if (ELF32_ST_TYPE (isym->st_info) == STT_FUNC
8830 && isym->st_size > 0)
8832 get_nds32_elf_blank_total
8833 (&blank_t, orig_addr + isym->st_size, 0) - ahead;
8838 /* Now adjust the global symbols defined in this section. */
8839 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
8840 - symtab_hdr->sh_info);
8841 sym_hashes = elf_sym_hashes (abfd);
8842 end_hashes = sym_hashes + symcount;
8843 blank_t = blank_head;
8844 for (; sym_hashes < end_hashes; sym_hashes++)
8846 struct elf_link_hash_entry *sym_hash = *sym_hashes;
8848 if ((sym_hash->root.type == bfd_link_hash_defined
8849 || sym_hash->root.type == bfd_link_hash_defweak)
8850 && sym_hash->root.u.def.section == sec)
8852 if (sym_hash->root.u.def.value <= sec->size)
8855 bfd_vma orig_addr = sym_hash->root.u.def.value;
8857 ahead = get_nds32_elf_blank_total (&blank_t, sym_hash->root.u.def.value, 1);
8858 sym_hash->root.u.def.value -= ahead;
8860 /* Adjust function size. */
8861 if (sym_hash->type == STT_FUNC)
8863 get_nds32_elf_blank_total
8864 (&blank_t, orig_addr + sym_hash->size, 0) - ahead;
8870 contents = elf_section_data (sec)->this_hdr.contents;
8871 blank_t = blank_head;
8872 while (blank_t->next)
8874 /* Actually delete the bytes. */
8876 /* If current blank is the last blank overlap with current section,
8877 go to finish process. */
8878 if (sec->size <= (blank_t->next->offset))
8881 memmove (contents + blank_t->offset - blank_t->total_size,
8882 contents + blank_t->offset + blank_t->size,
8883 blank_t->next->offset - (blank_t->offset + blank_t->size));
8885 blank_t = blank_t->next;
8888 if (sec->size > (blank_t->offset + blank_t->size))
8890 /* There are remaining code between blank and section boundary.
8891 Move the remaining code to appropriate location. */
8892 memmove (contents + blank_t->offset - blank_t->total_size,
8893 contents + blank_t->offset + blank_t->size,
8894 sec->size - (blank_t->offset + blank_t->size));
8895 sec->size -= blank_t->total_size + blank_t->size;
8898 /* This blank is not entirely included in the section,
8899 reduce the section size by only part of the blank size. */
8900 sec->size -= blank_t->total_size + (sec->size - blank_t->offset);
8904 blank_t = blank_head;
8905 blank_head = blank_head->next;
8906 remove_nds32_elf_blank (blank_t);
8912 /* Get the contents of a section. */
8915 nds32_get_section_contents (bfd *abfd, asection *sec,
8916 bfd_byte **contents_p, bfd_boolean cache)
8918 /* Get the section contents. */
8919 if (elf_section_data (sec)->this_hdr.contents != NULL)
8920 *contents_p = elf_section_data (sec)->this_hdr.contents;
8923 if (!bfd_malloc_and_get_section (abfd, sec, contents_p))
8926 elf_section_data (sec)->this_hdr.contents = *contents_p;
8932 /* Get the contents of the internal symbol of abfd. */
8935 nds32_get_local_syms (bfd *abfd, asection *sec ATTRIBUTE_UNUSED,
8936 Elf_Internal_Sym **isymbuf_p)
8938 Elf_Internal_Shdr *symtab_hdr;
8939 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
8941 /* Read this BFD's local symbols if we haven't done so already. */
8942 if (*isymbuf_p == NULL && symtab_hdr->sh_info != 0)
8944 *isymbuf_p = (Elf_Internal_Sym *) symtab_hdr->contents;
8945 if (*isymbuf_p == NULL)
8947 *isymbuf_p = bfd_elf_get_elf_syms (abfd, symtab_hdr,
8948 symtab_hdr->sh_info, 0,
8950 if (*isymbuf_p == NULL)
8954 symtab_hdr->contents = (bfd_byte *) (*isymbuf_p);
8959 /* Range of small data. */
8960 static bfd_vma sdata_range[2][2];
8961 static bfd_vma const sdata_init_range[2] =
8962 { ACCURATE_12BIT_S1, ACCURATE_19BIT };
8965 nds32_elf_insn_size (bfd *abfd ATTRIBUTE_UNUSED,
8966 bfd_byte *contents, bfd_vma addr)
8968 unsigned long insn = bfd_getb32 (contents + addr);
8970 if (insn & 0x80000000)
8976 /* Set the gp relax range. We have to measure the safe range
8977 to do gp relaxation. */
8980 relax_range_measurement (bfd *abfd)
8982 asection *sec_f, *sec_b;
8983 /* For upper bound. */
8984 bfd_vma maxpgsz = get_elf_backend_data (abfd)->maxpagesize;
8986 static int decide_relax_range = 0;
8988 int range_number = sizeof (sdata_init_range) / sizeof (sdata_init_range[0]);
8990 if (decide_relax_range)
8992 decide_relax_range = 1;
8994 if (sda_rela_sec == NULL)
8996 /* Since there is no data sections, we assume the range is page size. */
8997 for (i = 0; i < range_number; i++)
8999 sdata_range[i][0] = sdata_init_range[i] - 0x1000;
9000 sdata_range[i][1] = sdata_init_range[i] - 0x1000;
9005 /* Get the biggest alignment power after the gp located section. */
9006 sec_f = sda_rela_sec->output_section;
9007 sec_b = sec_f->next;
9009 while (sec_b != NULL)
9011 if ((unsigned)(1 << sec_b->alignment_power) > align)
9012 align = (1 << sec_b->alignment_power);
9013 sec_b = sec_b->next;
9016 /* I guess we can not determine the section before
9017 gp located section, so we assume the align is max page size. */
9018 for (i = 0; i < range_number; i++)
9020 sdata_range[i][1] = sdata_init_range[i] - align;
9021 BFD_ASSERT (sdata_range[i][1] <= sdata_init_range[i]);
9022 sdata_range[i][0] = sdata_init_range[i] - maxpgsz;
9023 BFD_ASSERT (sdata_range[i][0] <= sdata_init_range[i]);
9027 /* These are macros used to check flags encoded in r_addend.
9028 They are only used by nds32_elf_relax_section (). */
9029 #define GET_SEQ_LEN(addend) ((addend) & 0x000000ff)
9030 #define IS_1ST_CONVERT(addend) ((addend) & 0x80000000)
9031 #define IS_OPTIMIZE(addend) ((addend) & 0x40000000)
9032 #define IS_16BIT_ON(addend) ((addend) & 0x20000000)
9034 /* Relax LONGCALL1 relocation for nds32_elf_relax_section. */
9037 nds32_elf_relax_longcall1 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
9038 Elf_Internal_Rela *internal_relocs, int *insn_len,
9039 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
9040 Elf_Internal_Shdr *symtab_hdr)
9042 /* There are 3 variations for LONGCALL1
9043 case 4-4-2; 16-bit on, optimize off or optimize for space
9044 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9045 ori ta, ta, lo12(symbol) ; LO12S0
9048 case 4-4-4; 16-bit off, optimize don't care
9049 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9050 ori ta, ta, lo12(symbol) ; LO12S0
9053 case 4-4-4; 16-bit on, optimize for speed
9054 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9055 ori ta, ta, lo12(symbol) ; LO12S0
9057 Check code for -mlong-calls output. */
9059 /* Get the reloc for the address from which the register is
9060 being loaded. This reloc will tell us which function is
9061 actually being called. */
9064 int seq_len; /* Original length of instruction sequence. */
9066 Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *irelend;
9067 int pic_ext_target = 0;
9068 bfd_signed_vma foff;
9071 irelend = internal_relocs + sec->reloc_count;
9072 seq_len = GET_SEQ_LEN (irel->r_addend);
9073 laddr = irel->r_offset;
9074 *insn_len = seq_len;
9076 hi_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend,
9077 R_NDS32_HI20_RELA, laddr);
9078 lo_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend,
9079 R_NDS32_LO12S0_ORI_RELA,
9082 if (hi_irelfn == irelend || lo_irelfn == irelend)
9084 (*_bfd_error_handler)
9085 ("%B: warning: R_NDS32_LONGCALL1 points to unrecognized"
9086 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
9090 /* Get the value of the symbol referred to by the reloc. */
9091 foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr,
9094 /* This condition only happened when symbol is undefined. */
9095 if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_24BIT_S1
9096 || foff >= CONSERVATIVE_24BIT_S1)
9099 /* Relax to: jal symbol; 25_PCREL */
9100 /* For simplicity of coding, we are going to modify the section
9101 contents, the section relocs, and the BFD symbol table. We
9102 must tell the rest of the code not to free up this
9103 information. It would be possible to instead create a table
9104 of changes which have to be made, as is done in coff-mips.c;
9105 that would be more work, but would require less memory when
9106 the linker is run. */
9108 /* Replace the long call with a jal. */
9109 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info),
9110 R_NDS32_25_PCREL_RELA);
9111 irel->r_addend = hi_irelfn->r_addend;
9113 /* We don't resolve this here but resolve it in relocate_section. */
9115 bfd_putb32 (insn, contents + irel->r_offset);
9118 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE);
9120 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE);
9125 insn16 = NDS32_NOP16;
9126 bfd_putb16 (insn16, contents + irel->r_offset + *insn_len);
9128 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_INSN16);
9129 lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG;
9135 #define CONVERT_CONDITION_CALL(insn) (((insn) & 0xffff0000) ^ 0x90000)
9136 /* Relax LONGCALL2 relocation for nds32_elf_relax_section. */
9139 nds32_elf_relax_longcall2 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
9140 Elf_Internal_Rela *internal_relocs, int *insn_len,
9141 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
9142 Elf_Internal_Shdr *symtab_hdr)
9144 /* bltz rt, .L1 ; LONGCALL2
9145 jal symbol ; 25_PCREL
9148 /* Get the reloc for the address from which the register is
9149 being loaded. This reloc will tell us which function is
9150 actually being called. */
9154 Elf_Internal_Rela *i1_irelfn, *cond_irelfn, *irelend;
9155 int pic_ext_target = 0;
9156 bfd_signed_vma foff;
9158 irelend = internal_relocs + sec->reloc_count;
9159 laddr = irel->r_offset;
9161 find_relocs_at_address_addr (irel, internal_relocs, irelend,
9162 R_NDS32_25_PCREL_RELA, laddr + 4);
9164 if (i1_irelfn == irelend)
9166 (*_bfd_error_handler)
9167 ("%B: warning: R_NDS32_LONGCALL2 points to unrecognized"
9168 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
9172 insn = bfd_getb32 (contents + laddr);
9174 /* Get the value of the symbol referred to by the reloc. */
9175 foff = calculate_offset (abfd, sec, i1_irelfn, isymbuf, symtab_hdr,
9178 if (foff == 0 || foff < -CONSERVATIVE_16BIT_S1
9179 || foff >= CONSERVATIVE_16BIT_S1)
9182 /* Relax to bgezal rt, label ; 17_PCREL
9183 or bltzal rt, label ; 17_PCREL */
9185 /* Convert to complimentary conditional call. */
9186 insn = CONVERT_CONDITION_CALL (insn);
9188 /* For simplicity of coding, we are going to modify the section
9189 contents, the section relocs, and the BFD symbol table. We
9190 must tell the rest of the code not to free up this
9191 information. It would be possible to instead create a table
9192 of changes which have to be made, as is done in coff-mips.c;
9193 that would be more work, but would require less memory when
9194 the linker is run. */
9196 /* Clean unnessary relocations. */
9198 ELF32_R_INFO (ELF32_R_SYM (i1_irelfn->r_info), R_NDS32_NONE);
9200 find_relocs_at_address_addr (irel, internal_relocs, irelend,
9201 R_NDS32_17_PCREL_RELA, laddr);
9202 if (cond_irelfn != irelend)
9203 cond_irelfn->r_info =
9204 ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), R_NDS32_NONE);
9206 /* Replace the long call with a bgezal. */
9207 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (i1_irelfn->r_info),
9208 R_NDS32_17_PCREL_RELA);
9209 irel->r_addend = i1_irelfn->r_addend;
9211 bfd_putb32 (insn, contents + irel->r_offset);
9217 /* Relax LONGCALL3 relocation for nds32_elf_relax_section. */
9220 nds32_elf_relax_longcall3 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
9221 Elf_Internal_Rela *internal_relocs, int *insn_len,
9222 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
9223 Elf_Internal_Shdr *symtab_hdr)
9225 /* There are 3 variations for LONGCALL3
9226 case 4-4-4-2; 16-bit on, optimize off or optimize for space
9227 bltz rt, $1 ; LONGCALL3
9228 sethi ta, hi20(symbol) ; HI20
9229 ori ta, ta, lo12(symbol) ; LO12S0
9233 case 4-4-4-4; 16-bit off, optimize don't care
9234 bltz rt, $1 ; LONGCALL3
9235 sethi ta, hi20(symbol) ; HI20
9236 ori ta, ta, lo12(symbol) ; LO12S0
9240 case 4-4-4-4; 16-bit on, optimize for speed
9241 bltz rt, $1 ; LONGCALL3
9242 sethi ta, hi20(symbol) ; HI20
9243 ori ta, ta, lo12(symbol) ; LO12S0
9247 /* Get the reloc for the address from which the register is
9248 being loaded. This reloc will tell us which function is
9249 actually being called. */
9252 int seq_len; /* Original length of instruction sequence. */
9254 Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *cond_irelfn, *irelend;
9255 int pic_ext_target = 0;
9256 bfd_signed_vma foff;
9259 irelend = internal_relocs + sec->reloc_count;
9260 seq_len = GET_SEQ_LEN (irel->r_addend);
9261 laddr = irel->r_offset;
9262 *insn_len = seq_len;
9265 find_relocs_at_address_addr (irel, internal_relocs, irelend,
9266 R_NDS32_HI20_RELA, laddr + 4);
9268 find_relocs_at_address_addr (irel, internal_relocs, irelend,
9269 R_NDS32_LO12S0_ORI_RELA, laddr + 8);
9271 if (hi_irelfn == irelend || lo_irelfn == irelend)
9273 (*_bfd_error_handler)
9274 ("%B: warning: R_NDS32_LONGCALL3 points to unrecognized"
9275 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
9279 /* Get the value of the symbol referred to by the reloc. */
9280 foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr,
9283 if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_24BIT_S1
9284 || foff >= CONSERVATIVE_24BIT_S1)
9287 insn = bfd_getb32 (contents + laddr);
9288 if (foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1)
9290 /* Relax to bgezal rt, label ; 17_PCREL
9291 or bltzal rt, label ; 17_PCREL */
9293 /* Convert to complimentary conditional call. */
9294 insn = CONVERT_CONDITION_CALL (insn);
9295 bfd_putb32 (insn, contents + irel->r_offset);
9299 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE);
9301 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE);
9303 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE);
9306 find_relocs_at_address_addr (irel, internal_relocs, irelend,
9307 R_NDS32_17_PCREL_RELA, laddr);
9308 if (cond_irelfn != irelend)
9310 cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info),
9311 R_NDS32_17_PCREL_RELA);
9312 cond_irelfn->r_addend = hi_irelfn->r_addend;
9317 insn16 = NDS32_NOP16;
9318 bfd_putb16 (insn16, contents + irel->r_offset + *insn_len);
9319 hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info),
9321 hi_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG;
9325 else if (foff >= -CONSERVATIVE_24BIT_S1 && foff < CONSERVATIVE_24BIT_S1)
9327 /* Relax to the following instruction sequence
9328 bltz rt, $1 ; LONGCALL2
9329 jal symbol ; 25_PCREL
9333 bfd_putb32 (insn, contents + hi_irelfn->r_offset);
9335 hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info),
9336 R_NDS32_25_PCREL_RELA);
9338 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_LONGCALL2);
9341 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE);
9345 insn16 = NDS32_NOP16;
9346 bfd_putb16 (insn16, contents + irel->r_offset + *insn_len);
9348 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_INSN16);
9349 lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG;
9356 /* Relax LONGJUMP1 relocation for nds32_elf_relax_section. */
9359 nds32_elf_relax_longjump1 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
9360 Elf_Internal_Rela *internal_relocs, int *insn_len,
9361 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
9362 Elf_Internal_Shdr *symtab_hdr)
9364 /* There are 3 variations for LONGJUMP1
9365 case 4-4-2; 16-bit bit on, optimize off or optimize for space
9366 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9367 ori ta, ta, lo12(symbol) ; LO12S0
9370 case 4-4-4; 16-bit off, optimize don't care
9371 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9372 ori ta, ta, lo12(symbol) ; LO12S0
9375 case 4-4-4; 16-bit on, optimize for speed
9376 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9377 ori ta, ta, lo12(symbol) ; LO12S0
9380 /* Get the reloc for the address from which the register is
9381 being loaded. This reloc will tell us which function is
9382 actually being called. */
9385 int seq_len; /* Original length of instruction sequence. */
9386 int insn16_on; /* 16-bit on/off. */
9388 Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *irelend;
9389 int pic_ext_target = 0;
9390 bfd_signed_vma foff;
9392 unsigned long reloc;
9394 irelend = internal_relocs + sec->reloc_count;
9395 seq_len = GET_SEQ_LEN (irel->r_addend);
9396 laddr = irel->r_offset;
9397 *insn_len = seq_len;
9398 insn16_on = IS_16BIT_ON (irel->r_addend);
9401 find_relocs_at_address_addr (irel, internal_relocs, irelend,
9402 R_NDS32_HI20_RELA, laddr);
9404 find_relocs_at_address_addr (irel, internal_relocs, irelend,
9405 R_NDS32_LO12S0_ORI_RELA, laddr + 4);
9406 if (hi_irelfn == irelend || lo_irelfn == irelend)
9408 (*_bfd_error_handler)
9409 ("%B: warning: R_NDS32_LONGJUMP1 points to unrecognized"
9410 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
9414 /* Get the value of the symbol referred to by the reloc. */
9415 foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr,
9418 if (pic_ext_target || foff == 0 || foff >= CONSERVATIVE_24BIT_S1
9419 || foff < -CONSERVATIVE_24BIT_S1)
9422 if (insn16_on && foff >= -ACCURATE_8BIT_S1
9423 && foff < ACCURATE_8BIT_S1 && (seq_len & 0x2))
9426 /* 16-bit on, but not optimized for speed. */
9427 reloc = R_NDS32_9_PCREL_RELA;
9429 bfd_putb16 (insn16, contents + irel->r_offset);
9432 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
9437 reloc = R_NDS32_25_PCREL_RELA;
9439 bfd_putb32 (insn, contents + irel->r_offset);
9442 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_INSN16);
9447 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), reloc);
9449 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE);
9451 if ((seq_len & 0x2) && ((*insn_len & 2) == 0))
9453 insn16 = NDS32_NOP16;
9454 bfd_putb16 (insn16, contents + irel->r_offset + *insn_len);
9456 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info),
9458 lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG;
9464 /* Revert condition branch. This function does not check if the input
9465 instruction is condition branch or not. */
9468 nds32_elf_convert_branch (uint16_t insn16, uint32_t insn,
9469 uint16_t *re_insn16, uint32_t *re_insn)
9471 uint32_t comp_insn = 0;
9472 uint16_t comp_insn16 = 0;
9476 if (N32_OP6 (insn) == N32_OP6_BR1)
9479 comp_insn = (insn ^ 0x4000) & 0xffffc000;
9480 if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5)
9482 /* Insn can be contracted to 16-bit implied r5. */
9484 (comp_insn & 0x4000) ? INSN_BNES38 : INSN_BEQS38;
9485 comp_insn16 |= (N32_RT5 (insn) & 0x7) << 8;
9488 else if (N32_OP6 (insn) == N32_OP6_BR3)
9490 /* bnec $ta, imm11, label. */
9491 comp_insn = (insn ^ 0x80000) & 0xffffff00;
9495 comp_insn = (insn ^ 0x10000) & 0xffffc000;
9496 if (N32_BR2_SUB (insn) == N32_BR2_BEQZ
9497 || N32_BR2_SUB (insn) == N32_BR2_BNEZ)
9499 if (N32_IS_RT3 (insn))
9501 /* Insn can be contracted to 16-bit. */
9503 (comp_insn & 0x10000) ? INSN_BNEZ38 : INSN_BEQZ38;
9504 comp_insn16 |= (N32_RT5 (insn) & 0x7) << 8;
9506 else if (N32_RT5 (insn) == REG_R15)
9508 /* Insn can be contracted to 16-bit. */
9510 (comp_insn & 0x10000) ? INSN_BNES38 : INSN_BEQS38;
9517 switch ((insn16 & 0xf000) >> 12)
9520 /* beqz38 or bnez38 */
9521 comp_insn16 = (insn16 ^ 0x0800) & 0xff00;
9522 comp_insn = (comp_insn16 & 0x0800) ? INSN_BNEZ : INSN_BEQZ;
9523 comp_insn |= ((comp_insn16 & 0x0700) >> 8) << 20;
9527 /* beqs38 or bnes38 */
9528 comp_insn16 = (insn16 ^ 0x0800) & 0xff00;
9529 comp_insn = (comp_insn16 & 0x0800) ? INSN_BNE : INSN_BEQ;
9530 comp_insn |= (((comp_insn16 & 0x0700) >> 8) << 20)
9535 /* beqzS8 or bnezS8 */
9536 comp_insn16 = (insn16 ^ 0x0100) & 0xff00;
9537 comp_insn = (comp_insn16 & 0x0100) ? INSN_BNEZ : INSN_BEQZ;
9538 comp_insn |= REG_R15 << 20;
9545 if (comp_insn && re_insn)
9546 *re_insn = comp_insn;
9547 if (comp_insn16 && re_insn16)
9548 *re_insn16 = comp_insn16;
9551 /* Relax LONGJUMP2 relocation for nds32_elf_relax_section. */
9554 nds32_elf_relax_longjump2 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
9555 Elf_Internal_Rela *internal_relocs, int *insn_len,
9556 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
9557 Elf_Internal_Shdr *symtab_hdr)
9559 /* There are 3 variations for LONGJUMP2
9560 case 2-4; 1st insn convertible, 16-bit on,
9561 optimize off or optimize for space
9562 bnes38 rt, ra, $1 ; LONGJUMP2
9566 case 4-4; 1st insn not convertible
9567 bne rt, ra, $1 ; LONGJUMP2
9571 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
9572 bne rt, ra, $1 ; LONGJUMP2
9576 /* Get the reloc for the address from which the register is
9577 being loaded. This reloc will tell us which function is
9578 actually being called. */
9581 int seq_len; /* Original length of instruction sequence. */
9582 Elf_Internal_Rela *i2_irelfn, *cond_irelfn, *irelend;
9583 int pic_ext_target = 0, first_size;
9585 bfd_signed_vma foff;
9586 uint32_t insn, re_insn = 0;
9587 uint16_t insn16, re_insn16 = 0;
9588 unsigned long reloc, cond_reloc;
9590 enum elf_nds32_reloc_type checked_types[] =
9591 { R_NDS32_15_PCREL_RELA, R_NDS32_9_PCREL_RELA };
9593 irelend = internal_relocs + sec->reloc_count;
9594 seq_len = GET_SEQ_LEN (irel->r_addend);
9595 laddr = irel->r_offset;
9596 *insn_len = seq_len;
9597 first_size = (seq_len == 6) ? 2 : 4;
9600 find_relocs_at_address_addr (irel, internal_relocs,
9601 irelend, R_NDS32_25_PCREL_RELA,
9602 laddr + first_size);
9604 for (i = 0; i < sizeof (checked_types) / sizeof(checked_types[0]); i++)
9607 find_relocs_at_address_addr (irel, internal_relocs, irelend,
9608 checked_types[i], laddr);
9609 if (cond_irelfn != irelend)
9613 if (i2_irelfn == irelend || cond_irelfn == irelend)
9615 (*_bfd_error_handler)
9616 ("%B: warning: R_NDS32_LONGJUMP2 points to unrecognized"
9617 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
9621 /* Get the value of the symbol referred to by the reloc. */
9623 calculate_offset (abfd, sec, i2_irelfn, isymbuf, symtab_hdr,
9625 if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_16BIT_S1
9626 || foff >= CONSERVATIVE_16BIT_S1)
9629 /* Get the all corresponding instructions. */
9630 if (first_size == 4)
9632 insn = bfd_getb32 (contents + laddr);
9633 nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn);
9637 insn16 = bfd_getb16 (contents + laddr);
9638 nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn);
9641 if (re_insn16 && foff >= -(ACCURATE_8BIT_S1 - first_size)
9642 && foff < ACCURATE_8BIT_S1 - first_size)
9644 if (first_size == 4)
9646 /* Don't convert it to 16-bit now, keep this as relaxable for
9647 ``label reloc; INSN16''. */
9649 /* Save comp_insn32 to buffer. */
9650 bfd_putb32 (re_insn, contents + irel->r_offset);
9652 reloc = (N32_OP6 (re_insn) == N32_OP6_BR1) ?
9653 R_NDS32_15_PCREL_RELA : R_NDS32_17_PCREL_RELA;
9654 cond_reloc = R_NDS32_INSN16;
9658 bfd_putb16 (re_insn16, contents + irel->r_offset);
9660 reloc = R_NDS32_9_PCREL_RELA;
9661 cond_reloc = R_NDS32_NONE;
9664 else if (N32_OP6 (re_insn) == N32_OP6_BR1
9665 && (foff >= -(ACCURATE_14BIT_S1 - first_size)
9666 && foff < ACCURATE_14BIT_S1 - first_size))
9668 /* beqs label ; 15_PCREL */
9669 bfd_putb32 (re_insn, contents + irel->r_offset);
9671 reloc = R_NDS32_15_PCREL_RELA;
9672 cond_reloc = R_NDS32_NONE;
9674 else if (N32_OP6 (re_insn) == N32_OP6_BR2
9675 && foff >= -CONSERVATIVE_16BIT_S1
9676 && foff < CONSERVATIVE_16BIT_S1)
9678 /* beqz label ; 17_PCREL */
9679 bfd_putb32 (re_insn, contents + irel->r_offset);
9681 reloc = R_NDS32_17_PCREL_RELA;
9682 cond_reloc = R_NDS32_NONE;
9687 /* Set all relocations. */
9688 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), reloc);
9689 irel->r_addend = i2_irelfn->r_addend;
9691 cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info),
9693 cond_irelfn->r_addend = 0;
9695 if ((seq_len ^ *insn_len ) & 0x2)
9697 insn16 = NDS32_NOP16;
9698 bfd_putb16 (insn16, contents + irel->r_offset + 4);
9699 i2_irelfn->r_offset = 4;
9700 i2_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info),
9702 i2_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG;
9706 i2_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info),
9711 /* Relax LONGJUMP3 relocation for nds32_elf_relax_section. */
9714 nds32_elf_relax_longjump3 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
9715 Elf_Internal_Rela *internal_relocs, int *insn_len,
9716 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
9717 Elf_Internal_Shdr *symtab_hdr)
9719 /* There are 5 variations for LONGJUMP3
9720 case 1: 2-4-4-2; 1st insn convertible, 16-bit on,
9721 optimize off or optimize for space
9722 bnes38 rt, ra, $1 ; LONGJUMP3
9723 sethi ta, hi20(symbol) ; HI20
9724 ori ta, ta, lo12(symbol) ; LO12S0
9728 case 2: 2-4-4-2; 1st insn convertible, 16-bit on, optimize for speed
9729 bnes38 rt, ra, $1 ; LONGJUMP3
9730 sethi ta, hi20(symbol) ; HI20
9731 ori ta, ta, lo12(symbol) ; LO12S0
9735 case 3: 4-4-4-2; 1st insn not convertible, 16-bit on,
9736 optimize off or optimize for space
9737 bne rt, ra, $1 ; LONGJUMP3
9738 sethi ta, hi20(symbol) ; HI20
9739 ori ta, ta, lo12(symbol) ; LO12S0
9743 case 4: 4-4-4-4; 1st insn don't care, 16-bit off, optimize don't care
9744 16-bit off if no INSN16
9745 bne rt, ra, $1 ; LONGJUMP3
9746 sethi ta, hi20(symbol) ; HI20
9747 ori ta, ta, lo12(symbol) ; LO12S0
9751 case 5: 4-4-4-4; 1st insn not convertible, 16-bit on, optimize for speed
9752 16-bit off if no INSN16
9753 bne rt, ra, $1 ; LONGJUMP3
9754 sethi ta, hi20(symbol) ; HI20
9755 ori ta, ta, lo12(symbol) ; LO12S0
9759 /* Get the reloc for the address from which the register is
9760 being loaded. This reloc will tell us which function is
9761 actually being called. */
9762 enum elf_nds32_reloc_type checked_types[] =
9763 { R_NDS32_15_PCREL_RELA, R_NDS32_9_PCREL_RELA };
9765 int reloc_off = 0, cond_removed = 0, convertible;
9767 int seq_len; /* Original length of instruction sequence. */
9768 Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *cond_irelfn, *irelend;
9769 int pic_ext_target = 0, first_size;
9771 bfd_signed_vma foff;
9772 uint32_t insn, re_insn = 0;
9773 uint16_t insn16, re_insn16 = 0;
9774 unsigned long reloc, cond_reloc;
9776 irelend = internal_relocs + sec->reloc_count;
9777 seq_len = GET_SEQ_LEN (irel->r_addend);
9778 laddr = irel->r_offset;
9779 *insn_len = seq_len;
9781 convertible = IS_1ST_CONVERT (irel->r_addend);
9788 /* Get all needed relocations. */
9790 find_relocs_at_address_addr (irel, internal_relocs, irelend,
9791 R_NDS32_HI20_RELA, laddr + first_size);
9793 find_relocs_at_address_addr (irel, internal_relocs, irelend,
9794 R_NDS32_LO12S0_ORI_RELA,
9795 laddr + first_size + 4);
9797 for (i = 0; i < sizeof (checked_types) / sizeof (checked_types[0]); i++)
9800 find_relocs_at_address_addr (irel, internal_relocs, irelend,
9801 checked_types[i], laddr);
9802 if (cond_irelfn != irelend)
9806 if (hi_irelfn == irelend || lo_irelfn == irelend || cond_irelfn == irelend)
9808 (*_bfd_error_handler)
9809 ("%B: warning: R_NDS32_LONGJUMP3 points to unrecognized"
9810 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
9814 /* Get the value of the symbol referred to by the reloc. */
9815 foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr,
9818 if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_24BIT_S1
9819 || foff >= CONSERVATIVE_24BIT_S1)
9822 /* Get the all corresponding instructions. */
9823 if (first_size == 4)
9825 insn = bfd_getb32 (contents + laddr);
9826 nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn);
9830 insn16 = bfd_getb16 (contents + laddr);
9831 nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn);
9834 /* For simplicity of coding, we are going to modify the section
9835 contents, the section relocs, and the BFD symbol table. We
9836 must tell the rest of the code not to free up this
9837 information. It would be possible to instead create a table
9838 of changes which have to be made, as is done in coff-mips.c;
9839 that would be more work, but would require less memory when
9840 the linker is run. */
9842 if (re_insn16 && foff >= -ACCURATE_8BIT_S1 - first_size
9843 && foff < ACCURATE_8BIT_S1 - first_size)
9845 if (!(seq_len & 0x2))
9847 /* Don't convert it to 16-bit now, keep this as relaxable
9848 for ``label reloc; INSN1a''6. */
9849 /* Save comp_insn32 to buffer. */
9850 bfd_putb32 (re_insn, contents + irel->r_offset);
9852 reloc = (N32_OP6 (re_insn) == N32_OP6_BR1) ?
9853 R_NDS32_15_PCREL_RELA : R_NDS32_17_PCREL_RELA;
9854 cond_reloc = R_NDS32_INSN16;
9858 /* Not optimize for speed; convert sequence to 16-bit. */
9859 /* Save comp_insn16 to buffer. */
9860 bfd_putb16 (re_insn16, contents + irel->r_offset);
9862 reloc = R_NDS32_9_PCREL_RELA;
9863 cond_reloc = R_NDS32_NONE;
9867 else if (N32_OP6 (re_insn) == N32_OP6_BR1
9868 && (foff >= -(ACCURATE_14BIT_S1 - first_size)
9869 && foff < ACCURATE_14BIT_S1 - first_size))
9871 /* beqs label ; 15_PCREL */
9872 bfd_putb32 (re_insn, contents + irel->r_offset);
9874 reloc = R_NDS32_15_PCREL_RELA;
9875 cond_reloc = R_NDS32_NONE;
9878 else if (N32_OP6 (re_insn) == N32_OP6_BR2
9879 && foff >= -CONSERVATIVE_16BIT_S1
9880 && foff < CONSERVATIVE_16BIT_S1)
9882 /* beqz label ; 17_PCREL */
9883 bfd_putb32 (re_insn, contents + irel->r_offset);
9885 reloc = R_NDS32_17_PCREL_RELA;
9886 cond_reloc = R_NDS32_NONE;
9889 else if (foff >= -CONSERVATIVE_24BIT_S1 - reloc_off
9890 && foff < CONSERVATIVE_24BIT_S1 - reloc_off)
9892 /* Relax to one of the following 3 variations
9894 case 2-4; 1st insn convertible, 16-bit on, optimize off or optimize
9896 bnes38 rt, $1 ; LONGJUMP2
9900 case 4-4; 1st insn not convertible, others don't care
9901 bne rt, ra, $1 ; LONGJUMP2
9905 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
9906 bne rt, ra, $1 ; LONGJUMP2
9910 /* Offset for first instruction. */
9912 /* Use j label as second instruction. */
9913 *insn_len = 4 + first_size;
9915 bfd_putb32 (insn, contents + hi_irelfn->r_offset);
9916 reloc = R_NDS32_LONGJUMP2;
9917 cond_reloc = R_NDS32_25_PLTREL;
9922 if (cond_removed == 1)
9924 /* Set all relocations. */
9925 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), reloc);
9926 irel->r_addend = hi_irelfn->r_addend;
9928 cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info),
9930 cond_irelfn->r_addend = 0;
9931 hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info),
9936 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc);
9937 irel->r_addend = irel->r_addend;
9938 hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info),
9942 if ((seq_len ^ *insn_len ) & 0x2)
9944 insn16 = NDS32_NOP16;
9945 bfd_putb16 (insn16, contents + irel->r_offset + *insn_len);
9946 lo_irelfn->r_offset = *insn_len;
9947 lo_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info),
9949 lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG;
9953 lo_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info),
9958 /* Relax LONGCALL4 relocation for nds32_elf_relax_section. */
9961 nds32_elf_relax_longcall4 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
9962 Elf_Internal_Rela *internal_relocs, int *insn_len,
9963 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
9964 Elf_Internal_Shdr *symtab_hdr)
9966 /* The pattern for LONGCALL4. Support for function cse.
9967 sethi ta, hi20(symbol) ; LONGCALL4/HI20
9968 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
9969 jral ta ; PTR_RES/EMPTY/INSN16 */
9973 Elf_Internal_Rela *hi_irel, *ptr_irel, *insn_irel, *em_irel, *call_irel;
9974 Elf_Internal_Rela *irelend;
9975 int pic_ext_target = 0;
9976 bfd_signed_vma foff;
9978 irelend = internal_relocs + sec->reloc_count;
9979 laddr = irel->r_offset;
9981 /* Get the reloc for the address from which the register is
9982 being loaded. This reloc will tell us which function is
9983 actually being called. */
9984 hi_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
9985 R_NDS32_HI20_RELA, laddr);
9987 if (hi_irel == irelend)
9989 (*_bfd_error_handler)
9990 ("%B: warning: R_NDS32_LONGCALL4 points to unrecognized"
9991 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
9995 /* Get the value of the symbol referred to by the reloc. */
9996 foff = calculate_offset (abfd, sec, hi_irel, isymbuf, symtab_hdr,
9999 /* This condition only happened when symbol is undefined. */
10000 if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_24BIT_S1
10001 || foff >= CONSERVATIVE_24BIT_S1)
10004 /* Relax to: jal symbol; 25_PCREL */
10005 /* For simplicity of coding, we are going to modify the section
10006 contents, the section relocs, and the BFD symbol table. We
10007 must tell the rest of the code not to free up this
10008 information. It would be possible to instead create a table
10009 of changes which have to be made, as is done in coff-mips.c;
10010 that would be more work, but would require less memory when
10011 the linker is run. */
10013 ptr_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10014 R_NDS32_PTR_RESOLVED, irel->r_addend);
10015 em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10016 R_NDS32_EMPTY, irel->r_addend);
10018 if (ptr_irel == irelend || em_irel == irelend)
10020 (*_bfd_error_handler)
10021 ("%B: warning: R_NDS32_LONGCALL4 points to unrecognized"
10022 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
10025 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10026 insn = bfd_getb32 (contents + irel->r_addend);
10027 if (insn & 0x80000000)
10030 /* Replace the long call with a jal. */
10031 em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info),
10032 R_NDS32_25_PCREL_RELA);
10033 ptr_irel->r_addend = 1;
10035 /* We don't resolve this here but resolve it in relocate_section. */
10037 bfd_putb32 (insn, contents + em_irel->r_offset);
10040 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
10042 /* If there is function cse, HI20 can not remove now. */
10043 call_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10044 R_NDS32_LONGCALL4, laddr);
10045 if (call_irel == irelend)
10049 ELF32_R_INFO (ELF32_R_SYM (hi_irel->r_info), R_NDS32_NONE);
10052 insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10053 R_NDS32_INSN16, irel->r_addend);
10054 if (insn_irel != irelend)
10055 insn_irel->r_info =
10056 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
10061 /* Relax LONGCALL5 relocation for nds32_elf_relax_section. */
10064 nds32_elf_relax_longcall5 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
10065 Elf_Internal_Rela *internal_relocs, int *insn_len,
10066 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
10067 Elf_Internal_Shdr *symtab_hdr)
10069 /* The pattern for LONGCALL5.
10070 bltz rt, .L1 ; LONGCALL5/17_PCREL
10071 jal symbol ; 25_PCREL
10076 Elf_Internal_Rela *cond_irel, *irelend;
10077 int pic_ext_target = 0;
10078 bfd_signed_vma foff;
10080 irelend = internal_relocs + sec->reloc_count;
10081 laddr = irel->r_offset;
10082 insn = bfd_getb32 (contents + laddr);
10084 /* Get the reloc for the address from which the register is
10085 being loaded. This reloc will tell us which function is
10086 actually being called. */
10088 find_relocs_at_address_addr (irel, internal_relocs, irelend,
10089 R_NDS32_25_PCREL_RELA, irel->r_addend);
10090 if (cond_irel == irelend)
10092 (*_bfd_error_handler)
10093 ("%B: warning: R_NDS32_LONGCALL5 points to unrecognized"
10094 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
10098 /* Get the value of the symbol referred to by the reloc. */
10099 foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr,
10102 if (foff == 0 || foff < -CONSERVATIVE_16BIT_S1
10103 || foff >= CONSERVATIVE_16BIT_S1)
10106 /* Relax to bgezal rt, label ; 17_PCREL
10107 or bltzal rt, label ; 17_PCREL */
10109 /* Convert to complimentary conditional call. */
10110 insn = CONVERT_CONDITION_CALL (insn);
10112 /* For simplicity of coding, we are going to modify the section
10113 contents, the section relocs, and the BFD symbol table. We
10114 must tell the rest of the code not to free up this
10115 information. It would be possible to instead create a table
10116 of changes which have to be made, as is done in coff-mips.c;
10117 that would be more work, but would require less memory when
10118 the linker is run. */
10120 /* Modify relocation and contents. */
10121 cond_irel->r_info =
10122 ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_17_PCREL_RELA);
10124 /* Replace the long call with a bgezal. */
10125 bfd_putb32 (insn, contents + cond_irel->r_offset);
10128 /* Clean unnessary relocations. */
10129 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
10131 cond_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10132 R_NDS32_17_PCREL_RELA, laddr);
10133 cond_irel->r_info =
10134 ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE);
10139 /* Relax LONGCALL6 relocation for nds32_elf_relax_section. */
10142 nds32_elf_relax_longcall6 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
10143 Elf_Internal_Rela *internal_relocs, int *insn_len,
10144 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
10145 Elf_Internal_Shdr *symtab_hdr)
10147 /* The pattern for LONGCALL6.
10148 bltz rt, .L1 ; LONGCALL6/17_PCREL
10149 sethi ta, hi20(symbol) ; HI20/PTR
10150 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10151 jral ta ; PTR_RES/EMPTY/INSN16
10156 Elf_Internal_Rela *em_irel, *cond_irel, *irelend;
10157 int pic_ext_target = 0;
10158 bfd_signed_vma foff;
10160 irelend = internal_relocs + sec->reloc_count;
10161 laddr = irel->r_offset;
10163 /* Get the reloc for the address from which the register is
10164 being loaded. This reloc will tell us which function is
10165 actually being called. */
10166 em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10167 R_NDS32_EMPTY, irel->r_addend);
10169 if (em_irel == irelend)
10171 (*_bfd_error_handler)
10172 ("%B: warning: R_NDS32_LONGCALL6 points to unrecognized"
10173 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
10177 /* Get the value of the symbol referred to by the reloc. */
10178 foff = calculate_offset (abfd, sec, em_irel, isymbuf, symtab_hdr,
10181 if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_24BIT_S1
10182 || foff >= CONSERVATIVE_24BIT_S1)
10185 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10186 insn = bfd_getb32 (contents + irel->r_addend);
10187 if (insn & 0x80000000)
10190 insn = bfd_getb32 (contents + laddr);
10191 if (foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1)
10193 /* Relax to bgezal rt, label ; 17_PCREL
10194 or bltzal rt, label ; 17_PCREL */
10196 /* Convert to complimentary conditional call. */
10198 insn = CONVERT_CONDITION_CALL (insn);
10199 bfd_putb32 (insn, contents + em_irel->r_offset);
10202 ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), R_NDS32_17_PCREL_RELA);
10204 /* Set resolved relocation. */
10206 find_relocs_at_address_addr (irel, internal_relocs, irelend,
10207 R_NDS32_PTR_RESOLVED, irel->r_addend);
10208 if (cond_irel == irelend)
10210 (*_bfd_error_handler)
10211 ("%B: warning: R_NDS32_LONGCALL6 points to unrecognized"
10212 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
10215 cond_irel->r_addend = 1;
10217 /* Clear relocations. */
10220 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
10223 find_relocs_at_address_addr (irel, internal_relocs, irelend,
10224 R_NDS32_17_PCREL_RELA, laddr);
10225 if (cond_irel != irelend)
10226 cond_irel->r_info =
10227 ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE);
10230 find_relocs_at_address_addr (irel, internal_relocs, irelend,
10231 R_NDS32_INSN16, irel->r_addend);
10232 if (cond_irel != irelend)
10233 cond_irel->r_info =
10234 ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE);
10237 else if (foff >= -CONSERVATIVE_24BIT_S1 && foff < CONSERVATIVE_24BIT_S1)
10239 /* Relax to the following instruction sequence
10240 bltz rt, .L1 ; LONGCALL2/17_PCREL
10241 jal symbol ; 25_PCREL/PTR_RES
10244 /* Convert instruction. */
10246 bfd_putb32 (insn, contents + em_irel->r_offset);
10248 /* Convert relocations. */
10249 em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info),
10250 R_NDS32_25_PCREL_RELA);
10252 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_LONGCALL5);
10254 /* Set resolved relocation. */
10256 find_relocs_at_address_addr (irel, internal_relocs, irelend,
10257 R_NDS32_PTR_RESOLVED, irel->r_addend);
10258 if (cond_irel == irelend)
10260 (*_bfd_error_handler)
10261 ("%B: warning: R_NDS32_LONGCALL6 points to unrecognized"
10262 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
10265 cond_irel->r_addend = 1;
10268 find_relocs_at_address_addr (irel, internal_relocs, irelend,
10269 R_NDS32_INSN16, irel->r_addend);
10270 if (cond_irel != irelend)
10271 cond_irel->r_info =
10272 ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE);
10277 /* Relax LONGJUMP4 relocation for nds32_elf_relax_section. */
10280 nds32_elf_relax_longjump4 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
10281 Elf_Internal_Rela *internal_relocs, int *insn_len,
10282 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
10283 Elf_Internal_Shdr *symtab_hdr)
10285 /* The pattern for LONGJUMP4.
10286 sethi ta, hi20(symbol) ; LONGJUMP4/HI20
10287 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10288 jr ta ; PTR_RES/INSN16/EMPTY */
10291 int seq_len; /* Original length of instruction sequence. */
10293 Elf_Internal_Rela *hi_irel, *ptr_irel, *em_irel, *call_irel, *irelend;
10294 int pic_ext_target = 0;
10295 bfd_signed_vma foff;
10297 irelend = internal_relocs + sec->reloc_count;
10298 seq_len = GET_SEQ_LEN (irel->r_addend);
10299 laddr = irel->r_offset;
10300 *insn_len = seq_len;
10302 /* Get the reloc for the address from which the register is
10303 being loaded. This reloc will tell us which function is
10304 actually being called. */
10306 hi_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10307 R_NDS32_HI20_RELA, laddr);
10309 if (hi_irel == irelend)
10311 (*_bfd_error_handler)
10312 ("%B: warning: R_NDS32_LONGJUMP4 points to unrecognized"
10313 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
10317 /* Get the value of the symbol referred to by the reloc. */
10318 foff = calculate_offset (abfd, sec, hi_irel, isymbuf, symtab_hdr,
10321 if (pic_ext_target || foff == 0 || foff >= CONSERVATIVE_24BIT_S1
10322 || foff < -CONSERVATIVE_24BIT_S1)
10325 /* Convert it to "j label", it may be converted to j8 in the final
10326 pass of relaxation. Therefore, we do not consider this currently. */
10327 ptr_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10328 R_NDS32_PTR_RESOLVED, irel->r_addend);
10329 em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10330 R_NDS32_EMPTY, irel->r_addend);
10332 if (ptr_irel == irelend || em_irel == irelend)
10334 (*_bfd_error_handler)
10335 ("%B: warning: R_NDS32_LONGJUMP4 points to unrecognized"
10336 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
10341 ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), R_NDS32_25_PCREL_RELA);
10342 ptr_irel->r_addend = 1;
10344 /* Write instruction. */
10346 bfd_putb32 (insn, contents + em_irel->r_offset);
10348 /* Clear relocations. */
10349 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
10351 /* If there is function cse, HI20 can not remove now. */
10352 call_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10353 R_NDS32_LONGJUMP4, laddr);
10354 if (call_irel == irelend)
10358 ELF32_R_INFO (ELF32_R_SYM (hi_irel->r_info), R_NDS32_NONE);
10364 /* Relax LONGJUMP5 relocation for nds32_elf_relax_section. */
10367 nds32_elf_relax_longjump5 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
10368 Elf_Internal_Rela *internal_relocs, int *insn_len,
10369 int *seq_len, bfd_byte *contents,
10370 Elf_Internal_Sym *isymbuf,
10371 Elf_Internal_Shdr *symtab_hdr)
10373 /* There are 2 variations for LONGJUMP5
10374 case 2-4; 1st insn convertible, 16-bit on.
10375 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
10376 j label ; 25_PCREL/INSN16
10379 case 4-4; 1st insn not convertible
10380 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
10381 j label ; 25_PCREL/INSN16
10385 Elf_Internal_Rela *cond_irel, *irelend;
10386 int pic_ext_target = 0;
10388 bfd_signed_vma foff;
10389 uint32_t insn, re_insn = 0;
10390 uint16_t insn16, re_insn16 = 0;
10391 unsigned long reloc;
10393 enum elf_nds32_reloc_type checked_types[] =
10394 { R_NDS32_17_PCREL_RELA, R_NDS32_15_PCREL_RELA,
10395 R_NDS32_9_PCREL_RELA, R_NDS32_INSN16 };
10397 irelend = internal_relocs + sec->reloc_count;
10398 laddr = irel->r_offset;
10400 /* Get the reloc for the address from which the register is
10401 being loaded. This reloc will tell us which function is
10402 actually being called. */
10405 find_relocs_at_address_addr (irel, internal_relocs, irelend,
10406 R_NDS32_25_PCREL_RELA, irel->r_addend);
10407 if (cond_irel == irelend)
10409 (*_bfd_error_handler)
10410 ("%B: warning: R_NDS32_LONGJUMP5 points to unrecognized"
10411 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
10415 /* Get the value of the symbol referred to by the reloc. */
10416 foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr,
10419 if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_16BIT_S1
10420 || foff >= CONSERVATIVE_16BIT_S1)
10423 /* Get the all corresponding instructions. */
10424 insn = bfd_getb32 (contents + laddr);
10425 /* Check instruction size. */
10426 if (insn & 0x80000000)
10429 insn16 = insn >> 16;
10430 nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn);
10433 nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn);
10435 if (N32_OP6 (re_insn) == N32_OP6_BR1
10436 && (foff >= -CONSERVATIVE_14BIT_S1 && foff < CONSERVATIVE_14BIT_S1))
10438 /* beqs label ; 15_PCREL. */
10439 bfd_putb32 (re_insn, contents + cond_irel->r_offset);
10440 reloc = R_NDS32_15_PCREL_RELA;
10442 else if (N32_OP6 (re_insn) == N32_OP6_BR2
10443 && foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1)
10445 /* beqz label ; 17_PCREL. */
10446 bfd_putb32 (re_insn, contents + cond_irel->r_offset);
10447 reloc = R_NDS32_17_PCREL_RELA;
10449 else if ( N32_OP6 (re_insn) == N32_OP6_BR3
10450 && foff >= -CONSERVATIVE_8BIT_S1 && foff < CONSERVATIVE_8BIT_S1)
10452 /* beqc label ; 9_PCREL. */
10453 bfd_putb32 (re_insn, contents + cond_irel->r_offset);
10454 reloc = R_NDS32_WORD_9_PCREL_RELA;
10459 /* Set all relocations. */
10460 cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), reloc);
10462 /* Clean relocations. */
10463 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
10464 for (i = 0; i < sizeof (checked_types) / sizeof (checked_types[0]); i++)
10466 cond_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10467 checked_types[i], laddr);
10468 if (cond_irel != irelend)
10471 && (ELF32_R_TYPE (cond_irel->r_info) == R_NDS32_INSN16))
10473 /* If the branch instruction is 2 byte, it cannot remove
10474 directly. Only convert it to nop16 and remove it after
10475 checking alignment issue. */
10476 insn16 = NDS32_NOP16;
10477 bfd_putb16 (insn16, contents + laddr);
10478 cond_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG;
10481 cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info),
10490 /* Relax LONGJUMP6 relocation for nds32_elf_relax_section. */
10493 nds32_elf_relax_longjump6 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
10494 Elf_Internal_Rela *internal_relocs, int *insn_len,
10495 int *seq_len, bfd_byte *contents,
10496 Elf_Internal_Sym *isymbuf,
10497 Elf_Internal_Shdr *symtab_hdr)
10499 /* There are 5 variations for LONGJUMP6
10500 case : 2-4-4-4; 1st insn convertible, 16-bit on.
10501 bnes38 rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
10502 sethi ta, hi20(symbol) ; HI20/PTR
10503 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10504 jr ta ; PTR_RES/INSN16/EMPTY
10507 case : 4-4-4-4; 1st insn not convertible, 16-bit on.
10508 bne rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
10509 sethi ta, hi20(symbol) ; HI20/PTR
10510 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10511 jr ta ; PTR_RES/INSN16/EMPTY
10514 enum elf_nds32_reloc_type checked_types[] =
10515 { R_NDS32_17_PCREL_RELA, R_NDS32_15_PCREL_RELA,
10516 R_NDS32_9_PCREL_RELA, R_NDS32_INSN16 };
10518 int reloc_off = 0, cond_removed = 0;
10520 Elf_Internal_Rela *cond_irel, *em_irel, *irelend, *insn_irel;
10521 int pic_ext_target = 0;
10523 bfd_signed_vma foff;
10524 uint32_t insn, re_insn = 0;
10525 uint16_t insn16, re_insn16 = 0;
10526 unsigned long reloc;
10528 irelend = internal_relocs + sec->reloc_count;
10529 laddr = irel->r_offset;
10531 /* Get the reloc for the address from which the register is
10532 being loaded. This reloc will tell us which function is
10533 actually being called. */
10534 em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10535 R_NDS32_EMPTY, irel->r_addend);
10537 if (em_irel == irelend)
10539 (*_bfd_error_handler)
10540 ("%B: warning: R_NDS32_LONGJUMP6 points to unrecognized"
10541 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
10545 /* Get the value of the symbol referred to by the reloc. */
10546 foff = calculate_offset (abfd, sec, em_irel, isymbuf, symtab_hdr,
10549 if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_24BIT_S1
10550 || foff >= CONSERVATIVE_24BIT_S1)
10553 insn = bfd_getb32 (contents + laddr);
10554 /* Check instruction size. */
10555 if (insn & 0x80000000)
10558 insn16 = insn >> 16;
10559 nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn);
10562 nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn);
10564 /* For simplicity of coding, we are going to modify the section
10565 contents, the section relocs, and the BFD symbol table. We
10566 must tell the rest of the code not to free up this
10567 information. It would be possible to instead create a table
10568 of changes which have to be made, as is done in coff-mips.c;
10569 that would be more work, but would require less memory when
10570 the linker is run. */
10572 if (N32_OP6 (re_insn) == N32_OP6_BR1
10573 && (foff >= -CONSERVATIVE_14BIT_S1 && foff < CONSERVATIVE_14BIT_S1))
10575 /* beqs label ; 15_PCREL */
10576 bfd_putb32 (re_insn, contents + em_irel->r_offset);
10577 reloc = R_NDS32_15_PCREL_RELA;
10580 else if (N32_OP6 (re_insn) == N32_OP6_BR2
10581 && foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1)
10583 /* beqz label ; 17_PCREL */
10584 bfd_putb32 (re_insn, contents + em_irel->r_offset);
10585 reloc = R_NDS32_17_PCREL_RELA;
10588 else if (foff >= -CONSERVATIVE_24BIT_S1 - reloc_off
10589 && foff < CONSERVATIVE_24BIT_S1 - reloc_off)
10591 /* Relax to one of the following 2 variations
10593 case 2-4; 1st insn convertible, 16-bit on.
10594 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
10595 j label ; 25_PCREL/INSN16
10598 case 4-4; 1st insn not convertible
10599 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
10600 j label ; 25_PCREL/INSN16
10603 /* Use j label as second instruction. */
10605 reloc = R_NDS32_25_PCREL_RELA;
10606 bfd_putb32 (insn, contents + em_irel->r_offset);
10611 /* Set all relocations. */
10612 em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), reloc);
10615 find_relocs_at_address_addr (irel, internal_relocs, irelend,
10616 R_NDS32_PTR_RESOLVED, em_irel->r_offset);
10617 cond_irel->r_addend = 1;
10619 /* Use INSN16 of first branch instruction to distinguish if keeping
10620 INSN16 of final instruction or not. */
10621 insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10622 R_NDS32_INSN16, irel->r_offset);
10623 if (insn_irel == irelend)
10625 /* Clean the final INSN16. */
10627 find_relocs_at_address_addr (irel, internal_relocs, irelend,
10628 R_NDS32_INSN16, em_irel->r_offset);
10629 insn_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info),
10633 if (cond_removed == 1)
10637 /* Clear relocations. */
10638 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
10640 for (i = 0; i < sizeof (checked_types) / sizeof (checked_types[0]); i++)
10643 find_relocs_at_address_addr (irel, internal_relocs, irelend,
10644 checked_types[i], laddr);
10645 if (cond_irel != irelend)
10648 && (ELF32_R_TYPE (cond_irel->r_info) == R_NDS32_INSN16))
10650 /* If the branch instruction is 2 byte, it cannot remove
10651 directly. Only convert it to nop16 and remove it after
10652 checking alignment issue. */
10653 insn16 = NDS32_NOP16;
10654 bfd_putb16 (insn16, contents + laddr);
10655 cond_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG;
10658 cond_irel->r_info =
10659 ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE);
10665 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
10666 R_NDS32_LONGJUMP5);
10672 /* Relax LONGJUMP7 relocation for nds32_elf_relax_section. */
10675 nds32_elf_relax_longjump7 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
10676 Elf_Internal_Rela *internal_relocs, int *insn_len,
10677 int *seq_len, bfd_byte *contents,
10678 Elf_Internal_Sym *isymbuf,
10679 Elf_Internal_Shdr *symtab_hdr)
10681 /* There are 2 variations for LONGJUMP5
10682 case 2-4; 1st insn convertible, 16-bit on.
10683 movi55 ta, imm11 ; LONGJUMP7/INSN16
10684 beq rt, ta, label ; 15_PCREL
10686 case 4-4; 1st insn not convertible
10687 movi55 ta, imm11 ; LONGJUMP7/INSN16
10688 beq rt, ta, label ; 15_PCREL */
10691 Elf_Internal_Rela *cond_irel, *irelend, *insn_irel;
10692 int pic_ext_target = 0;
10693 bfd_signed_vma foff;
10694 uint32_t insn, re_insn = 0;
10698 irelend = internal_relocs + sec->reloc_count;
10699 laddr = irel->r_offset;
10701 /* Get the reloc for the address from which the register is
10702 being loaded. This reloc will tell us which function is
10703 actually being called. */
10706 find_relocs_at_address_addr (irel, internal_relocs, irelend,
10707 R_NDS32_15_PCREL_RELA, irel->r_addend);
10708 if (cond_irel == irelend)
10710 (*_bfd_error_handler)
10711 ("%B: warning: R_NDS32_LONGJUMP7 points to unrecognized"
10712 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
10716 /* Get the value of the symbol referred to by the reloc. */
10717 foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr,
10720 if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_8BIT_S1
10721 || foff >= CONSERVATIVE_8BIT_S1)
10724 /* Get the first instruction for its size. */
10725 insn = bfd_getb32 (contents + laddr);
10726 if (insn & 0x80000000)
10729 /* Get the immediate from movi55. */
10730 imm11 = N16_IMM5S (insn >> 16);
10734 /* Get the immediate from movi. */
10735 imm11 = N32_IMM20S (insn);
10738 /* Get the branch instruction. */
10739 insn = bfd_getb32 (contents + irel->r_addend);
10740 /* Convert instruction to BR3. */
10741 if ((insn >> 14) & 0x1)
10742 re_insn = N32_BR3 (BNEC, N32_RT5 (insn), imm11, 0);
10744 re_insn = N32_BR3 (BEQC, N32_RT5 (insn), imm11, 0);
10746 bfd_putb32 (re_insn, contents + cond_irel->r_offset);
10748 /* Set all relocations. */
10749 cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info),
10750 R_NDS32_WORD_9_PCREL_RELA);
10752 /* Clean relocations. */
10753 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
10754 insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10755 R_NDS32_INSN16, irel->r_offset);
10756 if (insn_irel != irelend)
10760 /* If the first insntruction is 16bit, convert it to nop16. */
10761 insn16 = NDS32_NOP16;
10762 bfd_putb16 (insn16, contents + laddr);
10763 insn_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG;
10766 cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info),
10774 #define GET_LOADSTORE_RANGE(addend) (((addend) >> 8) & 0x3f)
10776 /* Relax LOADSTORE relocation for nds32_elf_relax_section. */
10779 nds32_elf_relax_loadstore (struct bfd_link_info *link_info, bfd *abfd,
10780 asection *sec, Elf_Internal_Rela *irel,
10781 Elf_Internal_Rela *internal_relocs, int *insn_len,
10782 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
10783 Elf_Internal_Shdr *symtab_hdr, int load_store_relax)
10785 int eliminate_sethi = 0, range_type;
10787 bfd_vma local_sda, laddr;
10788 int seq_len; /* Original length of instruction sequence. */
10790 Elf_Internal_Rela *hi_irelfn = NULL, *irelend;
10791 bfd_vma access_addr = 0;
10792 bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */
10793 enum elf_nds32_reloc_type checked_types[] =
10794 { R_NDS32_HI20_RELA, R_NDS32_GOT_HI20,
10795 R_NDS32_GOTPC_HI20, R_NDS32_GOTOFF_HI20,
10796 R_NDS32_PLTREL_HI20, R_NDS32_PLT_GOTREL_HI20,
10797 R_NDS32_TLS_LE_HI20
10800 irelend = internal_relocs + sec->reloc_count;
10801 seq_len = GET_SEQ_LEN (irel->r_addend);
10802 laddr = irel->r_offset;
10803 *insn_len = seq_len;
10805 /* Get the high part relocation. */
10806 for (i = 0; i < ARRAY_SIZE (checked_types); i++)
10808 hi_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend,
10809 checked_types[i], laddr);
10810 if (hi_irelfn != irelend)
10814 if (hi_irelfn == irelend)
10816 (*_bfd_error_handler)
10817 ("%B: warning: R_NDS32_LOADSTORE points to unrecognized"
10818 "reloc at 0x%lx.", abfd, (long) irel->r_offset);
10822 range_type = GET_LOADSTORE_RANGE (irel->r_addend);
10823 nds32_elf_final_sda_base (sec->output_section->owner,
10824 link_info, &local_sda, FALSE);
10826 switch (ELF32_R_TYPE (hi_irelfn->r_info))
10828 case R_NDS32_HI20_RELA:
10829 insn = bfd_getb32 (contents + laddr);
10831 calculate_memory_address (abfd, hi_irelfn, isymbuf, symtab_hdr);
10833 if (range_type == NDS32_LOADSTORE_IMM)
10835 struct elf_link_hash_entry *h = NULL;
10838 if (ELF32_R_SYM (hi_irelfn->r_info) >= symtab_hdr->sh_info)
10840 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info;
10841 h = elf_sym_hashes (abfd)[indx];
10844 if ((access_addr < CONSERVATIVE_20BIT)
10845 && (!h || (h && strcmp (h->root.root.string, FP_BASE_NAME) != 0)))
10847 eliminate_sethi = 1;
10851 /* This is avoid to relax symbol address which is fixed
10852 relocations. Ex: _stack. */
10853 if (h && bfd_is_abs_section (h->root.u.def.section))
10857 if (!load_store_relax)
10860 /* Case for set gp register. */
10861 if (N32_RT5 (insn) == REG_GP)
10864 if (range_type == NDS32_LOADSTORE_FLOAT_S
10865 || range_type == NDS32_LOADSTORE_FLOAT_S)
10867 range_l = sdata_range[0][0];
10868 range_h = sdata_range[0][1];
10872 range_l = sdata_range[1][0];
10873 range_h = sdata_range[1][1];
10877 case R_NDS32_GOT_HI20:
10879 calculate_got_memory_address (abfd, link_info, hi_irelfn, symtab_hdr);
10881 /* If this symbol is not in .got, the return value will be -1.
10882 Since the gp value is set to SDA_BASE but not GLOBAL_OFFSET_TABLE,
10883 a negative offset is allowed. */
10884 if ((bfd_signed_vma) (access_addr - local_sda) < CONSERVATIVE_20BIT
10885 && (bfd_signed_vma) (access_addr - local_sda) >= -CONSERVATIVE_20BIT)
10886 eliminate_sethi = 1;
10889 case R_NDS32_PLT_GOTREL_HI20:
10890 access_addr = calculate_plt_memory_address (abfd, link_info, isymbuf,
10891 hi_irelfn, symtab_hdr);
10893 if ((bfd_signed_vma) (access_addr - local_sda) < CONSERVATIVE_20BIT
10894 && (bfd_signed_vma) (access_addr - local_sda) >= -CONSERVATIVE_20BIT)
10895 eliminate_sethi = 1;
10898 case R_NDS32_GOTOFF_HI20:
10900 calculate_memory_address (abfd, hi_irelfn, isymbuf, symtab_hdr);
10902 if ((bfd_signed_vma) (access_addr - local_sda) < CONSERVATIVE_20BIT
10903 && (bfd_signed_vma) (access_addr - local_sda) >= -CONSERVATIVE_20BIT)
10904 eliminate_sethi = 1;
10907 case R_NDS32_GOTPC_HI20:
10908 /* The access_addr must consider r_addend of hi_irel. */
10909 access_addr = sec->output_section->vma + sec->output_offset
10910 + irel->r_offset + hi_irelfn->r_addend;
10912 if ((bfd_signed_vma) (local_sda - access_addr) < CONSERVATIVE_20BIT
10913 && (bfd_signed_vma) (local_sda - access_addr) >= -CONSERVATIVE_20BIT)
10914 eliminate_sethi = 1;
10917 case R_NDS32_TLS_LE_HI20:
10919 calculate_memory_address (abfd, hi_irelfn, isymbuf, symtab_hdr);
10920 BFD_ASSERT (elf_hash_table (link_info)->tls_sec != NULL);
10921 access_addr -= (elf_hash_table (link_info)->tls_sec->vma + TP_OFFSET);
10922 if ((range_type == NDS32_LOADSTORE_IMM)
10923 && (bfd_signed_vma) (access_addr) < CONSERVATIVE_20BIT
10924 && (bfd_signed_vma) (access_addr) >= -CONSERVATIVE_20BIT)
10925 eliminate_sethi = 1;
10932 /* Delete sethi instruction. */
10933 if (eliminate_sethi == 1
10934 || (local_sda <= access_addr && (access_addr - local_sda) < range_h)
10935 || (local_sda > access_addr && (local_sda - access_addr) <= range_l))
10937 hi_irelfn->r_info =
10938 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE);
10940 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
10946 /* Relax LO12 relocation for nds32_elf_relax_section. */
10949 nds32_elf_relax_lo12 (struct bfd_link_info *link_info, bfd *abfd,
10950 asection *sec, Elf_Internal_Rela *irel,
10951 Elf_Internal_Rela *internal_relocs, bfd_byte *contents,
10952 Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr)
10955 bfd_vma local_sda, laddr;
10956 unsigned long reloc;
10957 bfd_vma access_addr;
10958 bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */
10959 Elf_Internal_Rela *irelfn = NULL, *irelend;
10960 struct elf_link_hash_entry *h = NULL;
10963 /* For SDA base relative relaxation. */
10964 nds32_elf_final_sda_base (sec->output_section->owner, link_info,
10965 &local_sda, FALSE);
10967 irelend = internal_relocs + sec->reloc_count;
10968 laddr = irel->r_offset;
10969 insn = bfd_getb32 (contents + laddr);
10971 if (!is_sda_access_insn (insn) && N32_OP6 (insn) != N32_OP6_ORI)
10974 access_addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr);
10976 if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info)
10978 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
10979 h = elf_sym_hashes (abfd)[indx];
10982 if (N32_OP6 (insn) == N32_OP6_ORI && access_addr < CONSERVATIVE_20BIT
10983 && (!h || (h && strcmp (h->root.root.string, FP_BASE_NAME) != 0)))
10985 reloc = R_NDS32_20_RELA;
10986 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc);
10987 insn = N32_TYPE1 (MOVI, N32_RT5 (insn), 0);
10988 bfd_putb32 (insn, contents + laddr);
10990 /* This is avoid to relax symbol address which is fixed
10991 relocations. Ex: _stack. */
10992 else if (N32_OP6 (insn) == N32_OP6_ORI
10993 && h && bfd_is_abs_section (h->root.u.def.section))
10997 range_l = sdata_range[1][0];
10998 range_h = sdata_range[1][1];
10999 switch (ELF32_R_TYPE (irel->r_info))
11001 case R_NDS32_LO12S0_RELA:
11002 reloc = R_NDS32_SDA19S0_RELA;
11004 case R_NDS32_LO12S1_RELA:
11005 reloc = R_NDS32_SDA18S1_RELA;
11007 case R_NDS32_LO12S2_RELA:
11008 reloc = R_NDS32_SDA17S2_RELA;
11010 case R_NDS32_LO12S2_DP_RELA:
11011 range_l = sdata_range[0][0];
11012 range_h = sdata_range[0][1];
11013 reloc = R_NDS32_SDA12S2_DP_RELA;
11015 case R_NDS32_LO12S2_SP_RELA:
11016 range_l = sdata_range[0][0];
11017 range_h = sdata_range[0][1];
11018 reloc = R_NDS32_SDA12S2_SP_RELA;
11024 /* There are range_h and range_l because linker has to promise
11025 all sections move cross one page together. */
11026 if ((local_sda <= access_addr && (access_addr - local_sda) < range_h)
11027 || (local_sda > access_addr && (local_sda - access_addr) <= range_l))
11029 if (N32_OP6 (insn) == N32_OP6_ORI && N32_RT5 (insn) == REG_GP)
11031 /* Maybe we should add R_NDS32_INSN16 reloc type here
11032 or manually do some optimization. sethi can't be
11033 eliminated when updating $gp so the relative ori
11034 needs to be preserved. */
11037 if (!turn_insn_to_sda_access (insn, ELF32_R_TYPE (irel->r_info),
11040 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc);
11041 bfd_putb32 (insn, contents + laddr);
11043 irelfn = find_relocs_at_address (irel, internal_relocs, irelend,
11045 /* SDA17 must keep INSN16 for converting fp_as_gp. */
11046 if (irelfn != irelend && reloc != R_NDS32_SDA17S2_RELA)
11048 ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_NDS32_NONE);
11055 /* Relax low part of PIC instruction pattern. */
11058 nds32_elf_relax_piclo12 (struct bfd_link_info *link_info, bfd *abfd,
11059 asection *sec, Elf_Internal_Rela *irel,
11060 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
11061 Elf_Internal_Shdr *symtab_hdr)
11064 bfd_vma local_sda, laddr;
11065 bfd_signed_vma foff;
11066 unsigned long reloc;
11068 nds32_elf_final_sda_base (sec->output_section->owner, link_info,
11069 &local_sda, FALSE);
11070 laddr = irel->r_offset;
11071 insn = bfd_getb32 (contents + laddr);
11073 if (N32_OP6 (insn) != N32_OP6_ORI)
11076 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_GOT_LO12)
11078 foff = calculate_got_memory_address (abfd, link_info, irel,
11079 symtab_hdr) - local_sda;
11080 reloc = R_NDS32_GOT20;
11082 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_PLT_GOTREL_LO12)
11084 foff = calculate_plt_memory_address (abfd, link_info, isymbuf, irel,
11085 symtab_hdr) - local_sda;
11086 reloc = R_NDS32_PLT_GOTREL_LO20;
11088 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTOFF_LO12)
11090 foff = calculate_memory_address (abfd, irel, isymbuf,
11091 symtab_hdr) - local_sda;
11092 reloc = R_NDS32_GOTOFF;
11094 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTPC_LO12)
11096 foff = local_sda - sec->output_section->vma + sec->output_offset
11097 + irel->r_offset + irel->r_addend;
11098 reloc = R_NDS32_GOTPC20;
11103 if ((foff < CONSERVATIVE_20BIT) && (foff >= -CONSERVATIVE_20BIT))
11105 /* Turn into MOVI. */
11106 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc);
11107 insn = N32_TYPE1 (MOVI, N32_RT5 (insn), 0);
11108 bfd_putb32 (insn, contents + laddr);
11112 /* Relax low part of LE TLS instruction pattern. */
11115 nds32_elf_relax_letlslo12 (struct bfd_link_info *link_info, bfd *abfd,
11116 Elf_Internal_Rela *irel,
11117 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
11118 Elf_Internal_Shdr *symtab_hdr)
11122 bfd_signed_vma foff;
11123 unsigned long reloc;
11125 laddr = irel->r_offset;
11126 foff = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr);
11127 BFD_ASSERT (elf_hash_table (link_info)->tls_sec != NULL);
11128 foff -= (elf_hash_table (link_info)->tls_sec->vma + TP_OFFSET);
11129 insn = bfd_getb32 (contents + laddr);
11131 if ( (bfd_signed_vma) (foff) < CONSERVATIVE_20BIT
11132 && (bfd_signed_vma) (foff) >= -CONSERVATIVE_20BIT)
11134 /* Pattern sethi-ori transform to movi. */
11135 reloc = R_NDS32_TLS_LE_20;
11136 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc);
11137 insn = N32_TYPE1 (MOVI, N32_RT5 (insn), 0);
11138 bfd_putb32 (insn, contents + laddr);
11142 /* Relax LE TLS calculate address instruction pattern. */
11145 nds32_elf_relax_letlsadd (struct bfd_link_info *link_info, bfd *abfd,
11146 asection *sec, Elf_Internal_Rela *irel,
11147 Elf_Internal_Rela *internal_relocs,
11148 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
11149 Elf_Internal_Shdr *symtab_hdr, bfd_boolean *again)
11151 /* Local TLS non-pic
11152 sethi ta, hi20(symbol@tpoff) ; TLS_LE_HI20
11153 ori ta, ta, lo12(symbol@tpoff) ; TLS_LE_LO12
11154 add ra, ta, tp ; TLS_LE_ADD */
11158 bfd_signed_vma foff;
11159 Elf_Internal_Rela *i1_irelfn, *irelend;
11161 irelend = internal_relocs + sec->reloc_count;
11162 laddr = irel->r_offset;
11163 insn = bfd_getb32 (contents + laddr);
11164 i1_irelfn = find_relocs_at_address (irel, internal_relocs, irelend,
11165 R_NDS32_PTR_RESOLVED);
11166 foff = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr);
11167 BFD_ASSERT (elf_hash_table (link_info)->tls_sec != NULL);
11168 foff -= (elf_hash_table (link_info)->tls_sec->vma + TP_OFFSET);
11170 /* The range is +/-16k. */
11171 if ((bfd_signed_vma) (foff) < CONSERVATIVE_15BIT
11172 && (bfd_signed_vma) (foff) >= -CONSERVATIVE_15BIT)
11174 /* Transform add to addi. */
11175 insn = N32_TYPE2 (ADDI, N32_RT5 (insn), N32_RB5 (insn), 0);
11177 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_TLS_LE_15S0);
11179 bfd_putb32 (insn, contents + laddr);
11180 if (i1_irelfn != irelend)
11182 i1_irelfn->r_addend |= 1;
11188 /* Relax LE TLS load store instruction pattern. */
11191 nds32_elf_relax_letlsls (struct bfd_link_info *link_info, bfd *abfd,
11192 asection *sec, Elf_Internal_Rela *irel,
11193 Elf_Internal_Rela *internal_relocs,
11194 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
11195 Elf_Internal_Shdr *symtab_hdr, bfd_boolean *again)
11200 bfd_signed_vma foff;
11201 Elf_Internal_Rela *i1_irelfn, *irelend;
11204 irelend = internal_relocs + sec->reloc_count;
11205 laddr = irel->r_offset;
11206 insn = bfd_getb32 (contents + laddr);
11207 i1_irelfn = find_relocs_at_address (irel, internal_relocs, irelend,
11208 R_NDS32_PTR_RESOLVED);
11209 foff = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr);
11210 BFD_ASSERT (elf_hash_table (link_info)->tls_sec != NULL);
11211 foff -= (elf_hash_table (link_info)->tls_sec->vma + TP_OFFSET);
11213 switch ((N32_OP6 (insn) << 8) | (insn & 0xff))
11215 case (N32_OP6_MEM << 8) | N32_MEM_LB:
11216 case (N32_OP6_MEM << 8) | N32_MEM_SB:
11217 case (N32_OP6_MEM << 8) | N32_MEM_LBS:
11218 /* The range is +/-16k. */
11219 if ((bfd_signed_vma) (foff) < CONSERVATIVE_15BIT
11220 && (bfd_signed_vma) (foff) >= -CONSERVATIVE_15BIT)
11223 ((insn & 0xff) << 25) | (insn & 0x1f00000) | ((insn & 0x7c00) << 5);
11225 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_TLS_LE_15S0);
11229 case (N32_OP6_MEM << 8) | N32_MEM_LH:
11230 case (N32_OP6_MEM << 8) | N32_MEM_SH:
11231 case (N32_OP6_MEM << 8) | N32_MEM_LHS:
11232 /* The range is +/-32k. */
11233 if ((bfd_signed_vma) (foff) < CONSERVATIVE_15BIT_S1
11234 && (bfd_signed_vma) (foff) >= -CONSERVATIVE_15BIT_S1)
11237 ((insn & 0xff) << 25) | (insn & 0x1f00000) | ((insn & 0x7c00) << 5);
11239 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_TLS_LE_15S1);
11243 case (N32_OP6_MEM << 8) | N32_MEM_LW:
11244 case (N32_OP6_MEM << 8) | N32_MEM_SW:
11245 /* The range is +/-64k. */
11246 if ((bfd_signed_vma) (foff) < CONSERVATIVE_15BIT_S2
11247 && (bfd_signed_vma) (foff) >= -CONSERVATIVE_15BIT_S2)
11250 ((insn & 0xff) << 25) | (insn & 0x1f00000) | ((insn & 0x7c00) << 5);
11252 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_TLS_LE_15S2);
11262 bfd_putb32 (insn, contents + laddr);
11263 if (i1_irelfn != irelend)
11265 i1_irelfn->r_addend |= 1;
11271 /* Relax PTR relocation for nds32_elf_relax_section. */
11274 nds32_elf_relax_ptr (bfd *abfd, asection *sec, Elf_Internal_Rela *irel,
11275 Elf_Internal_Rela *internal_relocs, int *insn_len,
11276 int *seq_len, bfd_byte *contents)
11278 Elf_Internal_Rela *ptr_irel, *irelend, *count_irel, *re_irel;
11280 irelend = internal_relocs + sec->reloc_count;
11283 find_relocs_at_address_addr (irel, internal_relocs, irelend,
11284 R_NDS32_PTR_RESOLVED, irel->r_addend);
11286 if (re_irel == irelend)
11288 (*_bfd_error_handler)
11289 ("%B: warning: R_NDS32_PTR points to unrecognized reloc at 0x%lx.",
11290 abfd, (long) irel->r_offset);
11294 if (re_irel->r_addend != 1)
11297 /* Pointed target is relaxed and no longer needs this void *,
11298 change the type to NONE. */
11299 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
11301 /* Find PTR_COUNT to decide remove it or not. If PTR_COUNT does
11302 not exist, it means only count 1 and remove it directly. */
11303 /* TODO: I hope we can obsolate R_NDS32_COUNT in the future. */
11304 count_irel = find_relocs_at_address (irel, internal_relocs, irelend,
11305 R_NDS32_PTR_COUNT);
11306 ptr_irel = find_relocs_at_address (irel, internal_relocs, irelend,
11308 if (count_irel != irelend)
11310 if (--count_irel->r_addend > 0)
11314 if (ptr_irel != irelend)
11317 /* If the PTR_COUNT is already 0, remove current instruction. */
11318 *seq_len = nds32_elf_insn_size (abfd, contents, irel->r_offset);
11323 /* Relax PLT_GOT_SUFF relocation for nds32_elf_relax_section. */
11326 nds32_elf_relax_pltgot_suff (struct bfd_link_info *link_info, bfd *abfd,
11327 asection *sec, Elf_Internal_Rela *irel,
11328 Elf_Internal_Rela *internal_relocs,
11329 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
11330 Elf_Internal_Shdr *symtab_hdr, bfd_boolean *again)
11333 bfd_signed_vma foff;
11334 Elf_Internal_Rela *i1_irelfn, *irelend;
11335 bfd_vma local_sda, laddr;
11337 irelend = internal_relocs + sec->reloc_count;
11338 laddr = irel->r_offset;
11339 insn = bfd_getb32 (contents + laddr);
11341 /* FIXME: It's a little trouble to turn JRAL5 to JAL since
11342 we need additional space. It might be help if we could
11343 borrow some space from instructions to be eliminated
11344 such as sethi, ori, add. */
11345 if (insn & 0x80000000)
11348 if (nds32_elf_check_dup_relocs
11349 (irel, internal_relocs, irelend, R_NDS32_PLT_GOT_SUFF))
11353 find_relocs_at_address (irel, internal_relocs, irelend,
11354 R_NDS32_PTR_RESOLVED);
11357 The boundary should be reduced since the .plt section hasn't
11358 been created and the address of specific entry is still unknown
11359 Maybe the range between the function call and the begin of the
11360 .text section can be used to decide if the .plt is in the range
11361 of function call. */
11363 if (N32_OP6 (insn) == N32_OP6_ALU1
11364 && N32_SUB5 (insn) == N32_ALU1_ADD)
11366 /* Get the value of the symbol referred to by the reloc. */
11367 nds32_elf_final_sda_base (sec->output_section->owner, link_info,
11368 &local_sda, FALSE);
11369 foff = (bfd_signed_vma) (calculate_plt_memory_address
11370 (abfd, link_info, isymbuf, irel,
11371 symtab_hdr) - local_sda);
11372 /* This condition only happened when symbol is undefined. */
11376 if (foff < -CONSERVATIVE_19BIT || foff >= CONSERVATIVE_19BIT)
11378 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
11379 R_NDS32_PLT_GOTREL_LO19);
11381 insn = N32_TYPE1 (SBGP, N32_RT5 (insn), __BIT (19));
11383 else if (N32_OP6 (insn) == N32_OP6_JREG
11384 && N32_SUB5 (insn) == N32_JREG_JRAL)
11386 /* Get the value of the symbol referred to by the reloc. */
11388 calculate_plt_offset (abfd, sec, link_info, isymbuf, irel, symtab_hdr);
11389 /* This condition only happened when symbol is undefined. */
11392 if (foff < -CONSERVATIVE_24BIT_S1 || foff >= CONSERVATIVE_24BIT_S1)
11394 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_25_PLTREL);
11400 bfd_putb32 (insn, contents + laddr);
11401 if (i1_irelfn != irelend)
11403 i1_irelfn->r_addend |= 1;
11408 /* Relax GOT_SUFF relocation for nds32_elf_relax_section. */
11411 nds32_elf_relax_got_suff (struct bfd_link_info *link_info, bfd *abfd,
11412 asection *sec, Elf_Internal_Rela *irel,
11413 Elf_Internal_Rela *internal_relocs,
11414 bfd_byte *contents, Elf_Internal_Shdr *symtab_hdr,
11415 bfd_boolean *again)
11418 bfd_signed_vma foff;
11419 Elf_Internal_Rela *i1_irelfn, *irelend;
11420 bfd_vma local_sda, laddr;
11422 irelend = internal_relocs + sec->reloc_count;
11423 laddr = irel->r_offset;
11424 insn = bfd_getb32 (contents + laddr);
11425 if (insn & 0x80000000)
11428 if (nds32_elf_check_dup_relocs
11429 (irel, internal_relocs, irelend, R_NDS32_GOT_SUFF))
11432 i1_irelfn = find_relocs_at_address (irel, internal_relocs, irelend,
11433 R_NDS32_PTR_RESOLVED);
11435 nds32_elf_final_sda_base (sec->output_section->owner, link_info,
11436 &local_sda, FALSE);
11437 foff = calculate_got_memory_address (abfd, link_info, irel,
11438 symtab_hdr) - local_sda;
11440 if (foff < CONSERVATIVE_19BIT && foff >= -CONSERVATIVE_19BIT)
11442 /* Turn LW to LWI.GP. Change relocation type to R_NDS32_GOT_REL. */
11443 insn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (6, 17, 3));
11445 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_GOT17S2_RELA);
11446 bfd_putb32 (insn, contents + laddr);
11447 if (i1_irelfn != irelend)
11449 i1_irelfn->r_addend |= 1;
11455 /* Relax PLT_GOT_SUFF relocation for nds32_elf_relax_section. */
11458 nds32_elf_relax_gotoff_suff (struct bfd_link_info *link_info, bfd *abfd,
11459 asection *sec, Elf_Internal_Rela *irel,
11460 Elf_Internal_Rela *internal_relocs,
11461 bfd_byte *contents, Elf_Internal_Sym *isymbuf,
11462 Elf_Internal_Shdr *symtab_hdr, bfd_boolean *again)
11464 int opc_insn_gotoff;
11466 bfd_signed_vma foff;
11467 Elf_Internal_Rela *i1_irelfn, *i2_irelfn, *irelend;
11468 bfd_vma local_sda, laddr;
11470 irelend = internal_relocs + sec->reloc_count;
11471 laddr = irel->r_offset;
11472 insn = bfd_getb32 (contents + laddr);
11474 if (insn & 0x80000000)
11477 if (nds32_elf_check_dup_relocs
11478 (irel, internal_relocs, irelend, R_NDS32_GOTOFF_SUFF))
11481 i1_irelfn = find_relocs_at_address (irel, internal_relocs, irelend,
11482 R_NDS32_PTR_RESOLVED);
11483 nds32_elf_final_sda_base (sec->output_section->owner, link_info,
11484 &local_sda, FALSE);
11485 foff = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr);
11486 foff = foff - local_sda;
11488 if (foff >= CONSERVATIVE_19BIT || foff < -CONSERVATIVE_19BIT)
11491 /* Concatenate opcode and sub-opcode for switch case.
11492 It may be MEM or ALU1. */
11493 opc_insn_gotoff = (N32_OP6 (insn) << 8) | (insn & 0xff);
11494 switch (opc_insn_gotoff)
11496 case (N32_OP6_MEM << 8) | N32_MEM_LW:
11497 /* 4-byte aligned. */
11498 insn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (6, 17, 3));
11500 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA17S2_RELA);
11502 case (N32_OP6_MEM << 8) | N32_MEM_SW:
11503 insn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (7, 17, 3));
11505 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA17S2_RELA);
11507 case (N32_OP6_MEM << 8) | N32_MEM_LH:
11508 /* 2-byte aligned. */
11509 insn = N32_TYPE1 (HWGP, N32_RT5 (insn), 0);
11511 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA18S1_RELA);
11513 case (N32_OP6_MEM << 8) | N32_MEM_LHS:
11514 insn = N32_TYPE1 (HWGP, N32_RT5 (insn), __BIT (18));
11516 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA18S1_RELA);
11518 case (N32_OP6_MEM << 8) | N32_MEM_SH:
11519 insn = N32_TYPE1 (HWGP, N32_RT5 (insn), __BIT (19));
11521 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA18S1_RELA);
11523 case (N32_OP6_MEM << 8) | N32_MEM_LB:
11524 /* 1-byte aligned. */
11525 insn = N32_TYPE1 (LBGP, N32_RT5 (insn), 0);
11527 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA19S0_RELA);
11529 case (N32_OP6_MEM << 8) | N32_MEM_LBS:
11530 insn = N32_TYPE1 (LBGP, N32_RT5 (insn), __BIT (19));
11532 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA19S0_RELA);
11534 case (N32_OP6_MEM << 8) | N32_MEM_SB:
11535 insn = N32_TYPE1 (SBGP, N32_RT5 (insn), 0);
11537 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA19S0_RELA);
11539 case (N32_OP6_ALU1 << 8) | N32_ALU1_ADD:
11540 insn = N32_TYPE1 (SBGP, N32_RT5 (insn), __BIT (19));
11542 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA19S0_RELA);
11548 bfd_putb32 (insn, contents + laddr);
11549 if (i1_irelfn != irelend)
11551 i1_irelfn->r_addend |= 1;
11554 if ((i2_irelfn = find_relocs_at_address (irel, internal_relocs, irelend,
11555 R_NDS32_INSN16)) != irelend)
11556 i2_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
11561 nds32_relax_adjust_label (bfd *abfd, asection *sec,
11562 Elf_Internal_Rela *internal_relocs,
11563 bfd_byte *contents,
11564 nds32_elf_blank_t **relax_blank_list,
11565 int optimize, int opt_size)
11567 /* This code block is used to adjust 4-byte alignment by relax a pair
11568 of instruction a time.
11570 It recognizes three types of relocations.
11571 1. R_NDS32_LABEL - a aligment.
11572 2. R_NDS32_INSN16 - relax a 32-bit instruction to 16-bit.
11573 3. is_16bit_NOP () - remove a 16-bit instruction. */
11575 /* TODO: It seems currently implementation only support 4-byte aligment.
11576 We should handle any-aligment. */
11578 Elf_Internal_Rela *insn_rel = NULL, *label_rel = NULL, *irel;
11579 Elf_Internal_Rela *tmp_rel, *tmp2_rel = NULL;
11580 Elf_Internal_Rela rel_temp;
11581 Elf_Internal_Rela *irelend;
11585 /* Checking for branch relaxation relies on the relocations to
11586 be sorted on 'r_offset'. This is not guaranteed so we must sort. */
11587 nds32_insertion_sort (internal_relocs, sec->reloc_count,
11588 sizeof (Elf_Internal_Rela), compar_reloc);
11590 irelend = internal_relocs + sec->reloc_count;
11592 /* Force R_NDS32_LABEL before R_NDS32_INSN16. */
11593 /* FIXME: Can we generate the right order in assembler?
11594 So we don't have to swapping them here. */
11596 for (label_rel = internal_relocs, insn_rel = internal_relocs;
11597 label_rel < irelend; label_rel++)
11599 if (ELF32_R_TYPE (label_rel->r_info) != R_NDS32_LABEL)
11602 /* Find the first reloc has the same offset with label_rel. */
11603 while (insn_rel < irelend && insn_rel->r_offset < label_rel->r_offset)
11606 for (;insn_rel < irelend && insn_rel->r_offset == label_rel->r_offset;
11608 /* Check if there were R_NDS32_INSN16 and R_NDS32_LABEL at the same
11610 if (ELF32_R_TYPE (insn_rel->r_info) == R_NDS32_INSN16)
11613 if (insn_rel < irelend && insn_rel->r_offset == label_rel->r_offset
11614 && insn_rel < label_rel)
11616 /* Swap the two reloc if the R_NDS32_INSN16 is
11617 before R_NDS32_LABEL. */
11618 memcpy (&rel_temp, insn_rel, sizeof (Elf_Internal_Rela));
11619 memcpy (insn_rel, label_rel, sizeof (Elf_Internal_Rela));
11620 memcpy (label_rel, &rel_temp, sizeof (Elf_Internal_Rela));
11626 /* If there were a sequence of R_NDS32_LABEL end up with .align 2
11627 or higher, remove other R_NDS32_LABEL with lower alignment.
11628 If an R_NDS32_INSN16 in between R_NDS32_LABELs must be converted,
11629 then the R_NDS32_LABEL sequence is broke. */
11630 for (tmp_rel = internal_relocs; tmp_rel < irelend; tmp_rel++)
11632 if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_LABEL)
11634 if (label_rel == NULL)
11636 if (tmp_rel->r_addend < 2)
11637 label_rel = tmp_rel;
11640 else if (tmp_rel->r_addend > 1)
11642 /* Remove all LABEL relocation from label_rel to tmp_rel
11643 including relocations with same offset as tmp_rel. */
11644 for (tmp2_rel = label_rel; tmp2_rel < tmp_rel
11645 || tmp2_rel->r_offset == tmp_rel->r_offset; tmp2_rel++)
11647 if (ELF32_R_TYPE (tmp2_rel->r_info) == R_NDS32_LABEL
11648 && tmp2_rel->r_addend < 2)
11650 ELF32_R_INFO (ELF32_R_SYM (tmp2_rel->r_info),
11656 else if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_INSN16 && label_rel)
11658 /* A new INSN16 which can be converted, so clear label_rel. */
11659 if (is_convert_32_to_16 (abfd, sec, tmp_rel, internal_relocs,
11661 || is_16bit_NOP (abfd, sec, tmp_rel))
11668 /* Optimized for speed and nothing has not been relaxed.
11669 It's time to align labels.
11670 We may convert a 16-bit instruction right before a label to
11671 32-bit, in order to align the label if necessary
11672 all reloc entries has been sorted by r_offset. */
11673 for (irel = internal_relocs; irel < irelend; irel++)
11675 if (ELF32_R_TYPE (irel->r_info) != R_NDS32_INSN16
11676 && ELF32_R_TYPE (irel->r_info) != R_NDS32_LABEL)
11679 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_INSN16)
11681 /* A new INSN16 found, resize the old one. */
11682 if (is_convert_32_to_16
11683 (abfd, sec, irel, internal_relocs, irelend, &insn16)
11684 || is_16bit_NOP (abfd, sec, irel))
11688 /* Previous INSN16 reloc exists, reduce its
11690 if (is_convert_32_to_16 (abfd, sec, insn_rel, internal_relocs,
11693 nds32_elf_write_16 (abfd, contents, insn_rel,
11694 internal_relocs, irelend, insn16);
11696 if (!insert_nds32_elf_blank_recalc_total
11697 (relax_blank_list, insn_rel->r_offset + 2, 2))
11700 else if (is_16bit_NOP (abfd, sec, insn_rel))
11702 if (!insert_nds32_elf_blank_recalc_total
11703 (relax_blank_list, insn_rel->r_offset, 2))
11707 ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), R_NDS32_NONE);
11709 /* Save the new one for later use. */
11713 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
11716 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL)
11718 /* Search for label. */
11719 int force_relax = 0;
11721 /* Label on 16-bit instruction or optimization
11722 needless, just reset this reloc. */
11723 insn16 = bfd_getb16 (contents + irel->r_offset);
11724 if ((irel->r_addend & 0x1f) < 2 && (!optimize || (insn16 & 0x8000)))
11727 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE);
11732 irel->r_offset - get_nds32_elf_blank_total (relax_blank_list,
11733 irel->r_offset, 1);
11737 /* Check if there is case which can not be aligned. */
11738 if (irel->r_addend == 2 && address & 0x2)
11743 /* Try to align this label. */
11745 if ((irel->r_addend & 0x1f) < 2)
11747 /* Check if there is a INSN16 at the same address.
11748 Label_rel always seats before insn_rel after
11751 /* Search for INSN16 at LABEL location. If INSN16 is at
11752 same location and this LABEL alignment is lower than 2,
11753 the INSN16 can be converted to 2-byte. */
11754 for (tmp_rel = irel;
11755 tmp_rel < irelend && tmp_rel->r_offset == irel->r_offset;
11758 if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_INSN16
11759 && (is_convert_32_to_16
11760 (abfd, sec, tmp_rel, internal_relocs,
11762 || is_16bit_NOP (abfd, sec, tmp_rel)))
11770 if (force_relax || irel->r_addend == 1 || address & 0x2)
11772 /* Label not aligned. */
11773 /* Previous reloc exists, reduce its size to 16-bit. */
11774 if (is_convert_32_to_16 (abfd, sec, insn_rel,
11775 internal_relocs, irelend, &insn16))
11777 nds32_elf_write_16 (abfd, contents, insn_rel,
11778 internal_relocs, irelend, insn16);
11780 if (!insert_nds32_elf_blank_recalc_total
11781 (relax_blank_list, insn_rel->r_offset + 2, 2))
11784 else if (is_16bit_NOP (abfd, sec, insn_rel))
11786 if (!insert_nds32_elf_blank_recalc_total
11787 (relax_blank_list, insn_rel->r_offset, 2))
11792 /* INSN16 reloc is used. */
11798 sec->size - get_nds32_elf_blank_total (relax_blank_list, sec->size, 0);
11799 if (insn_rel && (address & 0x2 || opt_size))
11801 if (is_convert_32_to_16 (abfd, sec, insn_rel, internal_relocs,
11804 nds32_elf_write_16 (abfd, contents, insn_rel, internal_relocs,
11806 if (!insert_nds32_elf_blank_recalc_total
11807 (relax_blank_list, insn_rel->r_offset + 2, 2))
11809 insn_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info),
11812 else if (is_16bit_NOP (abfd, sec, insn_rel))
11814 if (!insert_nds32_elf_blank_recalc_total
11815 (relax_blank_list, insn_rel->r_offset, 2))
11817 insn_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info),
11825 /* Pick relaxation round. */
11828 nds32_elf_pick_relax (bfd_boolean init, asection *sec, bfd_boolean *again,
11829 struct elf_nds32_link_hash_table *table,
11830 struct bfd_link_info *link_info)
11832 static asection *final_sec, *first_sec = NULL;
11833 static bfd_boolean normal_again = FALSE;
11834 static bfd_boolean set = FALSE;
11835 static bfd_boolean first = TRUE;
11836 int round_table[] = {
11837 NDS32_RELAX_NORMAL_ROUND,
11838 NDS32_RELAX_JUMP_IFC_ROUND,
11839 NDS32_RELAX_EX9_BUILD_ROUND,
11840 NDS32_RELAX_EX9_REPLACE_ROUND,
11842 static int pass = 0;
11843 static int relax_round;
11845 /* The new round. */
11846 if (init && first_sec == sec)
11849 normal_again = FALSE;
11854 /* Run an empty run to get the final section. */
11855 relax_round = NDS32_RELAX_EMPTY_ROUND;
11857 /* It has to enter relax again because we can
11858 not make sure what the final turn is. */
11867 /* Not reenter yet. */
11869 return relax_round;
11872 relax_round = round_table[pass];
11874 if (!init && relax_round == NDS32_RELAX_NORMAL_ROUND && *again)
11875 normal_again = TRUE;
11877 if (!init && final_sec == sec)
11879 switch (relax_round)
11881 case NDS32_RELAX_NORMAL_ROUND:
11884 /* Normal relaxation done. */
11885 if (table->target_optimize & NDS32_RELAX_JUMP_IFC_ON)
11890 else if (table->target_optimize & NDS32_RELAX_EX9_ON)
11892 pass += 2; /* NDS32_RELAX_EX9_BUILD_ROUND */
11895 else if (table->ex9_import_file)
11897 /* Import ex9 table. */
11898 if (table->update_ex9_table)
11899 pass += 2; /* NDS32_RELAX_EX9_BUILD_ROUND */
11901 pass += 3; /* NDS32_RELAX_EX9_REPLACE_ROUND */
11902 nds32_elf_ex9_import_table (link_info);
11907 case NDS32_RELAX_JUMP_IFC_ROUND:
11908 if (!nds32_elf_ifc_finish (link_info))
11909 (*_bfd_error_handler) (_("error: Jump IFC Fail."));
11910 if (table->target_optimize & NDS32_RELAX_EX9_ON)
11916 case NDS32_RELAX_EX9_BUILD_ROUND:
11917 nds32_elf_ex9_finish (link_info);
11921 case NDS32_RELAX_EX9_REPLACE_ROUND:
11922 if (table->target_optimize & NDS32_RELAX_JUMP_IFC_ON)
11924 /* Do jump IFC optimization again. */
11925 if (!nds32_elf_ifc_finish (link_info))
11926 (*_bfd_error_handler) (_("error: Jump IFC Fail."));
11934 return relax_round;
11938 nds32_elf_relax_section (bfd *abfd, asection *sec,
11939 struct bfd_link_info *link_info, bfd_boolean *again)
11941 nds32_elf_blank_t *relax_blank_list = NULL;
11942 Elf_Internal_Shdr *symtab_hdr;
11943 Elf_Internal_Rela *internal_relocs;
11944 Elf_Internal_Rela *irel;
11945 Elf_Internal_Rela *irelend;
11946 Elf_Internal_Sym *isymbuf = NULL;
11947 bfd_byte *contents = NULL;
11948 bfd_boolean result = TRUE;
11954 /* Target dependnet option. */
11955 struct elf_nds32_link_hash_table *table;
11956 int load_store_relax;
11959 relax_blank_list = NULL;
11963 /* Nothing to do for
11964 * relocatable link or
11965 * non-relocatable section or
11966 * non-code section or
11968 * no reloc entry. */
11969 if (bfd_link_relocatable (link_info)
11970 || (sec->flags & SEC_RELOC) == 0
11971 || (sec->flags & SEC_EXCLUDE) == 1
11972 || (sec->flags & SEC_CODE) == 0
11976 /* 09.12.11 Workaround. */
11977 /* We have to adjust align for R_NDS32_LABEL if needed.
11978 The adjust approach only can fix 2-byte align once. */
11979 if (sec->alignment_power > 2)
11982 /* The optimization type to do. */
11984 table = nds32_elf_hash_table (link_info);
11985 relax_round = nds32_elf_pick_relax (TRUE, sec, again, table, link_info);
11986 switch (relax_round)
11988 case NDS32_RELAX_JUMP_IFC_ROUND:
11989 /* Here is the entrance of ifc jump relaxation. */
11990 if (!nds32_elf_ifc_calc (link_info, abfd, sec))
11992 nds32_elf_pick_relax (FALSE, sec, again, table, link_info);
11995 case NDS32_RELAX_EX9_BUILD_ROUND:
11996 /* Here is the entrance of ex9 relaxation. There are two pass of
11997 ex9 relaxation. The one is to traverse all instructions and build
11998 the hash table. The other one is to compare instructions and replace
12000 if (!nds32_elf_ex9_build_hash_table (abfd, sec, link_info))
12002 nds32_elf_pick_relax (FALSE, sec, again, table, link_info);
12005 case NDS32_RELAX_EX9_REPLACE_ROUND:
12006 if (!nds32_elf_ex9_replace_instruction (link_info, abfd, sec))
12010 case NDS32_RELAX_EMPTY_ROUND:
12011 nds32_elf_pick_relax (FALSE, sec, again, table, link_info);
12014 case NDS32_RELAX_NORMAL_ROUND:
12016 if (sec->reloc_count == 0)
12021 /* The begining of general relaxation. */
12023 if (is_SDA_BASE_set == 0)
12026 is_SDA_BASE_set = 1;
12027 nds32_elf_final_sda_base (sec->output_section->owner, link_info,
12029 relax_range_measurement (abfd);
12032 if (is_ITB_BASE_set == 0)
12034 /* Set the _ITB_BASE_. */
12035 if (!nds32_elf_ex9_itb_base (link_info))
12037 (*_bfd_error_handler) (_("%B: error: Cannot set _ITB_BASE_"), abfd);
12038 bfd_set_error (bfd_error_bad_value);
12042 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
12043 /* Relocations MUST be kept in memory, because relaxation adjust them. */
12044 internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL,
12045 TRUE /* keep_memory */);
12046 if (internal_relocs == NULL)
12049 irelend = internal_relocs + sec->reloc_count;
12050 irel = find_relocs_at_address (internal_relocs, internal_relocs,
12051 irelend, R_NDS32_RELAX_ENTRY);
12053 if (irel == irelend)
12056 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY)
12058 if (irel->r_addend & R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG)
12060 nds32_elf_pick_relax (FALSE, sec, again, table, link_info);
12064 if (irel->r_addend & R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG)
12067 if (irel->r_addend & R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG)
12071 load_store_relax = table->load_store_relax;
12073 /* Get symbol table and section content. */
12074 if (!nds32_get_section_contents (abfd, sec, &contents, TRUE)
12075 || !nds32_get_local_syms (abfd, sec, &isymbuf))
12078 /* Do relax loop only when finalize is not done.
12079 Take care of relaxable relocs except INSN16. */
12080 for (irel = internal_relocs; irel < irelend; irel++)
12082 int seq_len; /* Original length of instruction sequence. */
12083 int insn_len = 0; /* Final length of instruction sequence. */
12084 bfd_boolean removed;
12087 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL
12088 && (irel->r_addend & 0x1f) >= 2)
12091 /* Relocation Types
12092 R_NDS32_LONGCALL1 53
12093 R_NDS32_LONGCALL2 54
12094 R_NDS32_LONGCALL3 55
12095 R_NDS32_LONGJUMP1 56
12096 R_NDS32_LONGJUMP2 57
12097 R_NDS32_LONGJUMP3 58
12098 R_NDS32_LOADSTORE 59 */
12099 if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_LONGCALL1
12100 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_LOADSTORE)
12101 seq_len = GET_SEQ_LEN (irel->r_addend);
12103 /* Relocation Types
12104 R_NDS32_LONGCALL4 107
12105 R_NDS32_LONGCALL5 108
12106 R_NDS32_LONGCALL6 109
12107 R_NDS32_LONGJUMP4 110
12108 R_NDS32_LONGJUMP5 111
12109 R_NDS32_LONGJUMP6 112
12110 R_NDS32_LONGJUMP7 113 */
12111 else if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_LONGCALL4
12112 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_LONGJUMP7)
12115 /* Relocation Types
12116 R_NDS32_LO12S0_RELA 30
12117 R_NDS32_LO12S1_RELA 29
12118 R_NDS32_LO12S2_RELA 28
12119 R_NDS32_LO12S2_SP_RELA 71
12120 R_NDS32_LO12S2_DP_RELA 70
12121 R_NDS32_GOT_LO12 46
12122 R_NDS32_GOTOFF_LO12 50
12123 R_NDS32_PLTREL_LO12 65
12124 R_NDS32_PLT_GOTREL_LO12 67
12125 R_NDS32_17IFC_PCREL_RELA 96
12126 R_NDS32_GOT_SUFF 193
12127 R_NDS32_GOTOFF_SUFF 194
12128 R_NDS32_PLT_GOT_SUFF 195
12129 R_NDS32_MULCALL_SUFF 196
12131 else if ((ELF32_R_TYPE (irel->r_info) <= R_NDS32_LO12S0_RELA
12132 && ELF32_R_TYPE (irel->r_info) >= R_NDS32_LO12S2_RELA)
12133 || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_SP_RELA
12134 || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_DP_RELA
12135 || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOT_LO12
12136 || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTOFF_LO12
12137 || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTPC_LO12
12138 || ELF32_R_TYPE (irel->r_info) == R_NDS32_PLTREL_LO12
12139 || ELF32_R_TYPE (irel->r_info) == R_NDS32_PLT_GOTREL_LO12
12140 || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_GOT_SUFF
12141 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_PTR)
12142 || ELF32_R_TYPE (irel->r_info) == R_NDS32_17IFC_PCREL_RELA
12143 || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_LO12
12144 || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_ADD
12145 || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_LS)
12150 insn_len = seq_len;
12153 switch (ELF32_R_TYPE (irel->r_info))
12155 case R_NDS32_LONGCALL1:
12156 removed = nds32_elf_relax_longcall1 (abfd, sec, irel, internal_relocs,
12157 &insn_len, contents, isymbuf,
12160 case R_NDS32_LONGCALL2:
12161 removed = nds32_elf_relax_longcall2 (abfd, sec, irel, internal_relocs,
12162 &insn_len, contents, isymbuf,
12165 case R_NDS32_LONGCALL3:
12166 removed = nds32_elf_relax_longcall3 (abfd, sec, irel, internal_relocs,
12167 &insn_len, contents, isymbuf,
12170 case R_NDS32_LONGJUMP1:
12171 removed = nds32_elf_relax_longjump1 (abfd, sec, irel, internal_relocs,
12172 &insn_len, contents, isymbuf,
12175 case R_NDS32_LONGJUMP2:
12176 removed = nds32_elf_relax_longjump2 (abfd, sec, irel, internal_relocs,
12177 &insn_len, contents, isymbuf,
12180 case R_NDS32_LONGJUMP3:
12181 removed = nds32_elf_relax_longjump3 (abfd, sec, irel, internal_relocs,
12182 &insn_len, contents, isymbuf,
12185 case R_NDS32_LONGCALL4:
12186 removed = nds32_elf_relax_longcall4 (abfd, sec, irel, internal_relocs,
12187 &insn_len, contents, isymbuf,
12190 case R_NDS32_LONGCALL5:
12191 removed = nds32_elf_relax_longcall5 (abfd, sec, irel, internal_relocs,
12192 &insn_len, contents, isymbuf,
12195 case R_NDS32_LONGCALL6:
12196 removed = nds32_elf_relax_longcall6 (abfd, sec, irel, internal_relocs,
12197 &insn_len, contents, isymbuf,
12200 case R_NDS32_LONGJUMP4:
12201 removed = nds32_elf_relax_longjump4 (abfd, sec, irel, internal_relocs,
12202 &insn_len, contents, isymbuf,
12205 case R_NDS32_LONGJUMP5:
12206 removed = nds32_elf_relax_longjump5 (abfd, sec, irel, internal_relocs,
12207 &insn_len, &seq_len, contents,
12208 isymbuf, symtab_hdr);
12210 case R_NDS32_LONGJUMP6:
12211 removed = nds32_elf_relax_longjump6 (abfd, sec, irel, internal_relocs,
12212 &insn_len, &seq_len, contents,
12213 isymbuf, symtab_hdr);
12215 case R_NDS32_LONGJUMP7:
12216 removed = nds32_elf_relax_longjump7 (abfd, sec, irel, internal_relocs,
12217 &insn_len, &seq_len, contents,
12218 isymbuf, symtab_hdr);
12220 case R_NDS32_LOADSTORE:
12221 removed = nds32_elf_relax_loadstore (link_info, abfd, sec, irel,
12222 internal_relocs, &insn_len,
12223 contents, isymbuf, symtab_hdr,
12226 case R_NDS32_LO12S0_RELA:
12227 case R_NDS32_LO12S1_RELA:
12228 case R_NDS32_LO12S2_DP_RELA:
12229 case R_NDS32_LO12S2_SP_RELA:
12230 case R_NDS32_LO12S2_RELA:
12231 /* Relax for low part. */
12232 nds32_elf_relax_lo12 (link_info, abfd, sec, irel, internal_relocs,
12233 contents, isymbuf, symtab_hdr);
12235 /* It is impossible to delete blank, so just continue. */
12237 case R_NDS32_GOT_LO12:
12238 case R_NDS32_GOTOFF_LO12:
12239 case R_NDS32_PLTREL_LO12:
12240 case R_NDS32_PLT_GOTREL_LO12:
12241 case R_NDS32_GOTPC_LO12:
12242 /* Relax for PIC gp-relative low part. */
12243 nds32_elf_relax_piclo12 (link_info, abfd, sec, irel, contents,
12244 isymbuf, symtab_hdr);
12246 /* It is impossible to delete blank, so just continue. */
12248 case R_NDS32_TLS_LE_LO12:
12249 /* Relax for LE TLS low part. */
12250 nds32_elf_relax_letlslo12 (link_info, abfd, irel, contents,
12251 isymbuf, symtab_hdr);
12253 /* It is impossible to delete blank, so just continue. */
12255 case R_NDS32_TLS_LE_ADD:
12256 nds32_elf_relax_letlsadd (link_info, abfd, sec, irel, internal_relocs,
12257 contents, isymbuf, symtab_hdr, again);
12258 /* It is impossible to delete blank, so just continue. */
12260 case R_NDS32_TLS_LE_LS:
12261 nds32_elf_relax_letlsls (link_info, abfd, sec, irel, internal_relocs,
12262 contents, isymbuf, symtab_hdr, again);
12265 removed = nds32_elf_relax_ptr (abfd, sec, irel, internal_relocs,
12266 &insn_len, &seq_len, contents);
12268 case R_NDS32_PLT_GOT_SUFF:
12269 nds32_elf_relax_pltgot_suff (link_info, abfd, sec, irel,
12270 internal_relocs, contents,
12271 isymbuf, symtab_hdr, again);
12272 /* It is impossible to delete blank, so just continue. */
12274 case R_NDS32_GOT_SUFF:
12275 nds32_elf_relax_got_suff (link_info, abfd, sec, irel,
12276 internal_relocs, contents,
12277 symtab_hdr, again);
12278 /* It is impossible to delete blank, so just continue. */
12280 case R_NDS32_GOTOFF_SUFF:
12281 nds32_elf_relax_gotoff_suff (link_info, abfd, sec, irel,
12282 internal_relocs, contents,
12283 isymbuf, symtab_hdr, again);
12284 /* It is impossible to delete blank, so just continue. */
12290 if (removed && seq_len - insn_len > 0)
12292 if (!insert_nds32_elf_blank
12293 (&relax_blank_list, irel->r_offset + insn_len,
12294 seq_len - insn_len))
12300 calc_nds32_blank_total (relax_blank_list);
12302 if (table->relax_fp_as_gp)
12304 if (!nds32_relax_fp_as_gp (link_info, abfd, sec, internal_relocs,
12308 if (*again == FALSE)
12310 if (!nds32_fag_remove_unused_fpbase (abfd, sec, internal_relocs,
12316 nds32_elf_pick_relax (FALSE, sec, again, table, link_info);
12318 if (*again == FALSE)
12320 if (!nds32_relax_adjust_label (abfd, sec, internal_relocs, contents,
12321 &relax_blank_list, optimize, opt_size))
12325 /* It doesn't matter optimize_for_space_no_align anymore.
12326 If object file is assembled with flag '-Os',
12327 the we don't adjust jump-destination on 4-byte boundary. */
12329 if (relax_blank_list)
12331 nds32_elf_relax_delete_blanks (abfd, sec, relax_blank_list);
12332 relax_blank_list = NULL;
12335 if (*again == FALSE)
12337 /* Closing the section, so we don't relax it anymore. */
12338 bfd_vma sec_size_align;
12339 Elf_Internal_Rela *tmp_rel;
12341 /* Pad to alignment boundary. Only handle current section alignment. */
12342 sec_size_align = (sec->size + (~((-1U) << sec->alignment_power)))
12343 & ((-1U) << sec->alignment_power);
12344 if ((sec_size_align - sec->size) & 0x2)
12346 insn16 = NDS32_NOP16;
12347 bfd_putb16 (insn16, contents + sec->size);
12351 while (sec_size_align != sec->size)
12353 insn = NDS32_NOP32;
12354 bfd_putb32 (insn, contents + sec->size);
12358 tmp_rel = find_relocs_at_address (internal_relocs, internal_relocs,
12359 irelend, R_NDS32_RELAX_ENTRY);
12360 if (tmp_rel != irelend)
12361 tmp_rel->r_addend |= R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG;
12363 clean_nds32_elf_blank ();
12367 if (internal_relocs != NULL
12368 && elf_section_data (sec)->relocs != internal_relocs)
12369 free (internal_relocs);
12371 if (contents != NULL
12372 && elf_section_data (sec)->this_hdr.contents != contents)
12375 if (isymbuf != NULL && symtab_hdr->contents != (bfd_byte *) isymbuf)
12385 static struct bfd_elf_special_section const nds32_elf_special_sections[] =
12387 {".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE},
12388 {".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE},
12393 nds32_elf_output_arch_syms (bfd *output_bfd ATTRIBUTE_UNUSED,
12394 struct bfd_link_info *info,
12395 void *finfo ATTRIBUTE_UNUSED,
12396 bfd_boolean (*func) (void *, const char *,
12397 Elf_Internal_Sym *,
12399 struct elf_link_hash_entry *)
12402 FILE *sym_ld_script = NULL;
12403 struct elf_nds32_link_hash_table *table;
12405 table = nds32_elf_hash_table (info);
12406 sym_ld_script = table->sym_ld_script;
12408 if (check_start_export_sym)
12409 fprintf (sym_ld_script, "}\n");
12414 static enum elf_reloc_type_class
12415 nds32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
12416 const asection *rel_sec ATTRIBUTE_UNUSED,
12417 const Elf_Internal_Rela *rela)
12419 switch ((int) ELF32_R_TYPE (rela->r_info))
12421 case R_NDS32_RELATIVE:
12422 return reloc_class_relative;
12423 case R_NDS32_JMP_SLOT:
12424 return reloc_class_plt;
12426 return reloc_class_copy;
12428 return reloc_class_normal;
12432 /* Put target dependent option into info hash table. */
12434 bfd_elf32_nds32_set_target_option (struct bfd_link_info *link_info,
12435 int relax_fp_as_gp,
12436 int eliminate_gc_relocs,
12437 FILE * sym_ld_script, int load_store_relax,
12438 int target_optimize, int relax_status,
12439 int relax_round, FILE * ex9_export_file,
12440 FILE * ex9_import_file,
12441 int update_ex9_table, int ex9_limit,
12442 bfd_boolean ex9_loop_aware,
12443 bfd_boolean ifc_loop_aware)
12445 struct elf_nds32_link_hash_table *table;
12447 table = nds32_elf_hash_table (link_info);
12451 table->relax_fp_as_gp = relax_fp_as_gp;
12452 table->eliminate_gc_relocs = eliminate_gc_relocs;
12453 table->sym_ld_script = sym_ld_script;
12454 table ->load_store_relax = load_store_relax;
12455 table->target_optimize = target_optimize;
12456 table->relax_status = relax_status;
12457 table->relax_round = relax_round;
12458 table->ex9_export_file = ex9_export_file;
12459 table->ex9_import_file = ex9_import_file;
12460 table->update_ex9_table = update_ex9_table;
12461 table->ex9_limit = ex9_limit;
12462 table->ex9_loop_aware = ex9_loop_aware;
12463 table->ifc_loop_aware = ifc_loop_aware;
12466 /* These functions and data-structures are used for fp-as-gp
12469 #define FAG_THRESHOLD 3 /* At least 3 gp-access. */
12470 /* lwi37.fp covers 508 bytes, but there may be 32-byte padding between
12471 the read-only section and read-write section. */
12472 #define FAG_WINDOW (508 - 32)
12474 /* An nds32_fag represent a gp-relative access.
12475 We find best fp-base by using a sliding window
12476 to find a base address which can cover most gp-access. */
12479 struct nds32_fag *next; /* NULL-teminated linked list. */
12480 bfd_vma addr; /* The address of this fag. */
12481 Elf_Internal_Rela **relas; /* The relocations associated with this fag.
12482 It is used for applying FP7U2_FLAG. */
12483 int count; /* How many times this address is referred.
12484 There should be exactly `count' relocations
12486 int relas_capcity; /* The buffer size of relas.
12487 We use an array instead of linked-list,
12488 and realloc is used to adjust buffer size. */
12492 nds32_fag_init (struct nds32_fag *head)
12494 memset (head, 0, sizeof (struct nds32_fag));
12498 nds32_fag_verify (struct nds32_fag *head)
12500 struct nds32_fag *iter;
12501 struct nds32_fag *prev;
12507 if (prev && prev->addr >= iter->addr)
12508 puts ("Bug in fp-as-gp insertion.");
12514 /* Insert a fag in ascending order.
12515 If a fag of the same address already exists,
12516 they are chained by relas array. */
12519 nds32_fag_insert (struct nds32_fag *head, bfd_vma addr,
12520 Elf_Internal_Rela * rel)
12522 struct nds32_fag *iter;
12523 struct nds32_fag *new_fag;
12524 const int INIT_RELAS_CAP = 4;
12527 iter->next && iter->next->addr <= addr;
12529 /* Find somewhere to insert. */ ;
12531 /* `iter' will be equal to `head' if the list is empty. */
12532 if (iter != head && iter->addr == addr)
12534 /* The address exists in the list.
12535 Insert `rel' into relocation list, relas. */
12537 /* Check whether relas is big enough. */
12538 if (iter->count >= iter->relas_capcity)
12540 iter->relas_capcity *= 2;
12541 iter->relas = bfd_realloc
12542 (iter->relas, iter->relas_capcity * sizeof (void *));
12544 iter->relas[iter->count++] = rel;
12548 /* This is a new address. Create a fag node for it. */
12549 new_fag = bfd_malloc (sizeof (struct nds32_fag));
12550 memset (new_fag, 0, sizeof (*new_fag));
12551 new_fag->addr = addr;
12552 new_fag->count = 1;
12553 new_fag->next = iter->next;
12554 new_fag->relas_capcity = INIT_RELAS_CAP;
12555 new_fag->relas = (Elf_Internal_Rela **)
12556 bfd_malloc (new_fag->relas_capcity * sizeof (void *));
12557 new_fag->relas[0] = rel;
12558 iter->next = new_fag;
12560 nds32_fag_verify (head);
12564 nds32_fag_free_list (struct nds32_fag *head)
12566 struct nds32_fag *iter;
12571 struct nds32_fag *tmp = iter;
12579 /* Find the best fp-base address.
12580 The relocation associated with that address is returned,
12581 so we can track the symbol instead of a fixed address.
12583 When relaxation, the address of an datum may change,
12584 because a text section is shrinked, so the data section
12585 moves forward. If the aligments of text and data section
12586 are different, their distance may change too.
12587 Therefore, tracking a fixed address is not appriate. */
12590 nds32_fag_find_base (struct nds32_fag *head, struct nds32_fag **bestpp)
12592 struct nds32_fag *base; /* First fag in the window. */
12593 struct nds32_fag *last; /* First fag outside the window. */
12594 int accu = 0; /* Usage accumulation. */
12595 struct nds32_fag *best; /* Best fag. */
12596 int baccu = 0; /* Best accumulation. */
12598 /* Use first fag for initial, and find the last fag in the window.
12600 In each iteration, we could simply subtract previous fag
12601 and accumulate following fags which are inside the window,
12602 untill we each the end. */
12604 if (head->next == NULL)
12610 /* Initialize base. */
12614 last && last->addr < base->addr + FAG_WINDOW;
12616 accu += last->count;
12620 /* Record the best base in each iteration. */
12623 accu -= base->count;
12625 /* Account fags in window. */
12626 for (/* Nothing. */;
12627 last && last->addr < base->addr + FAG_WINDOW;
12629 accu += last->count;
12631 /* A better fp-base? */
12644 /* Apply R_NDS32_INSN16_FP7U2_FLAG on gp-relative accesses,
12645 so we can convert it fo fp-relative access later.
12646 `best_fag' is the best fp-base. Only those inside the window
12647 of best_fag is applied the flag. */
12650 nds32_fag_mark_relax (struct bfd_link_info *link_info,
12651 bfd *abfd, struct nds32_fag *best_fag,
12652 Elf_Internal_Rela *internal_relocs,
12653 Elf_Internal_Rela *irelend)
12655 struct nds32_fag *ifag;
12656 bfd_vma best_fpbase, gp;
12659 output_bfd = abfd->sections->output_section->owner;
12660 nds32_elf_final_sda_base (output_bfd, link_info, &gp, FALSE);
12661 best_fpbase = best_fag->addr;
12663 if (best_fpbase > gp + sdata_range[1][1]
12664 || best_fpbase < gp - sdata_range[1][0])
12667 /* Mark these inside the window R_NDS32_INSN16_FP7U2_FLAG flag,
12668 so we know they can be converted to lwi37.fp. */
12669 for (ifag = best_fag;
12670 ifag && ifag->addr < best_fpbase + FAG_WINDOW; ifag = ifag->next)
12674 for (i = 0; i < ifag->count; i++)
12676 Elf_Internal_Rela *insn16_rel;
12677 Elf_Internal_Rela *fag_rel;
12679 fag_rel = ifag->relas[i];
12681 /* Only if this is within the WINDOWS, FP7U2_FLAG
12684 insn16_rel = find_relocs_at_address
12685 (fag_rel, internal_relocs, irelend, R_NDS32_INSN16);
12687 if (insn16_rel != irelend)
12688 insn16_rel->r_addend = R_NDS32_INSN16_FP7U2_FLAG;
12694 /* Reset INSN16 to clean fp as gp. */
12697 nds32_fag_unmark_relax (struct nds32_fag *fag,
12698 Elf_Internal_Rela *internal_relocs,
12699 Elf_Internal_Rela *irelend)
12701 struct nds32_fag *ifag;
12703 Elf_Internal_Rela *insn16_rel;
12704 Elf_Internal_Rela *fag_rel;
12706 for (ifag = fag; ifag; ifag = ifag->next)
12708 for (i = 0; i < ifag->count; i++)
12710 fag_rel = ifag->relas[i];
12712 /* Restore the INSN16 relocation. */
12713 insn16_rel = find_relocs_at_address
12714 (fag_rel, internal_relocs, irelend, R_NDS32_INSN16);
12716 if (insn16_rel != irelend)
12717 insn16_rel->r_addend &= ~R_NDS32_INSN16_FP7U2_FLAG;
12722 /* This is the main function of fp-as-gp optimization.
12723 It should be called by relax_section. */
12726 nds32_relax_fp_as_gp (struct bfd_link_info *link_info,
12727 bfd *abfd, asection *sec,
12728 Elf_Internal_Rela *internal_relocs,
12729 Elf_Internal_Rela *irelend,
12730 Elf_Internal_Sym *isymbuf)
12732 Elf_Internal_Rela *begin_rel = NULL;
12733 Elf_Internal_Rela *irel;
12734 struct nds32_fag fag_head;
12735 Elf_Internal_Shdr *symtab_hdr;
12736 bfd_byte *contents;
12737 bfd_boolean ifc_inside = FALSE;
12739 /* FIXME: Can we bfd_elf_link_read_relocs for the relocs? */
12741 /* Per-function fp-base selection.
12742 1. Create a list for all the gp-relative access.
12743 2. Base on those gp-relative address,
12744 find a fp-base which can cover most access.
12745 3. Use the fp-base for fp-as-gp relaxation.
12747 NOTE: If fp-as-gp is not worth to do, (e.g., less than 3 times),
12749 1. delete the `la $fp, _FP_BASE_' instruction and
12750 2. not convert lwi.gp to lwi37.fp.
12752 To delete the _FP_BASE_ instruction, we simply apply
12753 R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG flag in the r_addend to disable it.
12755 To suppress the conversion, we simply NOT to apply
12756 R_NDS32_INSN16_FP7U2_FLAG flag. */
12758 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
12760 if (!nds32_get_section_contents (abfd, sec, &contents, TRUE)
12761 || !nds32_get_local_syms (abfd, sec, &isymbuf))
12764 /* Check whether it is worth for fp-as-gp optimization,
12765 i.e., at least 3 gp-load.
12767 Set R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG if we should NOT
12768 apply this optimization. */
12770 for (irel = internal_relocs; irel < irelend; irel++)
12772 /* We recognize R_NDS32_RELAX_REGION_BEGIN/_END for the region.
12773 One we enter the begin of the region, we track all the LW/ST
12774 instructions, so when we leave the region, we try to find
12775 the best fp-base address for those LW/ST instructions. */
12777 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN
12778 && (irel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG))
12780 /* Begin of the region. */
12782 (*_bfd_error_handler) (_("%B: Nested OMIT_FP in %A."), abfd, sec);
12785 nds32_fag_init (&fag_head);
12786 ifc_inside = FALSE;
12788 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END
12789 && (irel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG))
12792 struct nds32_fag *best_fag, *tmp_fag;
12795 /* End of the region.
12796 Check whether it is worth to do fp-as-gp. */
12798 if (begin_rel == NULL)
12800 (*_bfd_error_handler) (_("%B: Unmatched OMIT_FP in %A."), abfd, sec);
12804 accu = nds32_fag_find_base (&fag_head, &best_fag);
12806 /* Clean FP7U2_FLAG because they may set ever. */
12807 tmp_fag = fag_head.next;
12808 nds32_fag_unmark_relax (tmp_fag, internal_relocs, irelend);
12810 /* Check if it is worth, and FP_BASE is near enough to SDA_BASE. */
12811 if (accu < FAG_THRESHOLD
12812 || !nds32_fag_mark_relax (link_info, abfd, best_fag,
12813 internal_relocs, irelend))
12815 /* Not worth to do fp-as-gp. */
12816 begin_rel->r_addend |= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG;
12817 begin_rel->r_addend &= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG;
12818 irel->r_addend |= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG;
12819 irel->r_addend &= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG;
12820 nds32_fag_free_list (&fag_head);
12825 /* R_SYM of R_NDS32_RELAX_REGION_BEGIN is not used by assembler,
12826 so we use it to record the distance to the reloction of best
12828 dist = best_fag->relas[0] - begin_rel;
12829 BFD_ASSERT (dist > 0 && dist < 0xffffff);
12830 /* Use high 16 bits of addend to record the _FP_BASE_ matched
12831 relocation. And get the base value when relocating. */
12832 begin_rel->r_addend &= (0x1 << 16) - 1;
12833 begin_rel->r_addend |= dist << 16;
12835 nds32_fag_free_list (&fag_head);
12839 if (begin_rel == NULL || ifc_inside)
12840 /* Skip if we are not in the region of fp-as-gp. */
12843 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA15S2_RELA
12844 || ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA17S2_RELA)
12849 /* A gp-relative access is found. Insert it to the fag-list. */
12851 /* Rt is necessary an RT3, so it can be converted to lwi37.fp. */
12852 insn = bfd_getb32 (contents + irel->r_offset);
12853 if (!N32_IS_RT3 (insn))
12856 addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr);
12857 nds32_fag_insert (&fag_head, addr, irel);
12859 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA_FP7U2_RELA)
12863 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_17IFC_PCREL_RELA
12864 || ELF32_R_TYPE (irel->r_info) == R_NDS32_10IFCU_PCREL_RELA)
12866 /* Suppress fp as gp when encounter ifc. */
12874 /* Remove unused `la $fp, _FD_BASE_' instruction. */
12877 nds32_fag_remove_unused_fpbase (bfd *abfd, asection *sec,
12878 Elf_Internal_Rela *internal_relocs,
12879 Elf_Internal_Rela *irelend)
12881 Elf_Internal_Rela *irel;
12882 Elf_Internal_Shdr *symtab_hdr;
12883 bfd_byte *contents = NULL;
12884 nds32_elf_blank_t *relax_blank_list = NULL;
12885 bfd_boolean result = TRUE;
12886 bfd_boolean unused_region = FALSE;
12889 NOTE: Disable fp-as-gp if we encounter ifcall relocations.
12890 * R_NDS32_17IFC_PCREL_RELA
12891 * R_NDS32_10IFCU_PCREL_RELA
12896 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
12897 nds32_get_section_contents (abfd, sec, &contents, TRUE);
12899 for (irel = internal_relocs; irel < irelend; irel++)
12901 /* To remove unused fp-base, we simply find the REGION_NOT_OMIT_FP
12902 we marked to in previous pass.
12903 DO NOT scan relocations again, since we've alreadly decided it
12904 and set the flag. */
12905 const char *syname;
12909 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN
12910 && (irel->r_addend & R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG))
12911 unused_region = TRUE;
12912 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END
12913 && (irel->r_addend & R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG))
12914 unused_region = FALSE;
12916 /* We're not in the region. */
12917 if (!unused_region)
12920 /* _FP_BASE_ must be a GLOBAL symbol. */
12921 syndx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
12922 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
12925 /* The symbol name must be _FP_BASE_. */
12926 syname = elf_sym_hashes (abfd)[syndx]->root.root.string;
12927 if (strcmp (syname, FP_BASE_NAME) != 0)
12930 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA19S0_RELA)
12932 /* addi.gp $fp, -256 */
12933 insn = bfd_getb32 (contents + irel->r_offset);
12934 if (insn != INSN_ADDIGP_TO_FP)
12937 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA15S0_RELA)
12939 /* addi $fp, $gp, -256 */
12940 insn = bfd_getb32 (contents + irel->r_offset);
12941 if (insn != INSN_ADDI_GP_TO_FP)
12944 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_20_RELA)
12946 /* movi $fp, FP_BASE */
12947 insn = bfd_getb32 (contents + irel->r_offset);
12948 if (insn != INSN_MOVI_TO_FP)
12954 /* We got here because a FP_BASE instruction is found. */
12955 if (!insert_nds32_elf_blank_recalc_total
12956 (&relax_blank_list, irel->r_offset, 4))
12961 if (relax_blank_list)
12963 nds32_elf_relax_delete_blanks (abfd, sec, relax_blank_list);
12964 relax_blank_list = NULL;
12973 /* This is a version of bfd_generic_get_relocated_section_contents.
12974 We need this variety because relaxation will modify the dwarf
12975 infomation. When there is undefined symbol reference error mesage,
12976 linker need to dump line number where the symbol be used. However
12977 the address is be relaxed, it can not get the original dwarf contents.
12978 The variety only modify function call for reading in the section. */
12981 nds32_elf_get_relocated_section_contents (bfd *abfd,
12982 struct bfd_link_info *link_info,
12983 struct bfd_link_order *link_order,
12985 bfd_boolean relocatable,
12988 bfd *input_bfd = link_order->u.indirect.section->owner;
12989 asection *input_section = link_order->u.indirect.section;
12991 arelent **reloc_vector;
12994 reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
12995 if (reloc_size < 0)
12998 /* Read in the section. */
12999 if (!nds32_get_section_contents (input_bfd, input_section, &data, FALSE))
13002 if (reloc_size == 0)
13005 reloc_vector = (arelent **) bfd_malloc (reloc_size);
13006 if (reloc_vector == NULL)
13009 reloc_count = bfd_canonicalize_reloc (input_bfd, input_section,
13010 reloc_vector, symbols);
13011 if (reloc_count < 0)
13014 if (reloc_count > 0)
13017 for (parent = reloc_vector; *parent != NULL; parent++)
13019 char *error_message = NULL;
13021 bfd_reloc_status_type r;
13023 symbol = *(*parent)->sym_ptr_ptr;
13024 if (symbol->section && discarded_section (symbol->section))
13027 static reloc_howto_type none_howto
13028 = HOWTO (0, 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL,
13029 "unused", FALSE, 0, 0, FALSE);
13031 p = data + (*parent)->address * bfd_octets_per_byte (input_bfd);
13032 _bfd_clear_contents ((*parent)->howto, input_bfd, input_section,
13034 (*parent)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
13035 (*parent)->addend = 0;
13036 (*parent)->howto = &none_howto;
13040 r = bfd_perform_relocation (input_bfd, *parent, data,
13042 relocatable ? abfd : NULL,
13047 asection *os = input_section->output_section;
13049 /* A partial link, so keep the relocs. */
13050 os->orelocation[os->reloc_count] = *parent;
13054 if (r != bfd_reloc_ok)
13058 case bfd_reloc_undefined:
13059 (*link_info->callbacks->undefined_symbol)
13060 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
13061 input_bfd, input_section, (*parent)->address, TRUE);
13063 case bfd_reloc_dangerous:
13064 BFD_ASSERT (error_message != NULL);
13065 (*link_info->callbacks->reloc_dangerous)
13066 (link_info, error_message,
13067 input_bfd, input_section, (*parent)->address);
13069 case bfd_reloc_overflow:
13070 (*link_info->callbacks->reloc_overflow)
13072 bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
13073 (*parent)->howto->name, (*parent)->addend,
13074 input_bfd, input_section, (*parent)->address);
13076 case bfd_reloc_outofrange:
13078 This error can result when processing some partially
13079 complete binaries. Do not abort, but issue an error
13080 message instead. */
13081 link_info->callbacks->einfo
13082 (_("%X%P: %B(%A): relocation \"%R\" goes out of range\n"),
13083 abfd, input_section, * parent);
13094 free (reloc_vector);
13098 free (reloc_vector);
13102 /* Link-time IFC relaxation.
13103 In this optimization, we chains jump instructions
13104 of the same destination with ifcall. */
13107 /* List to save jal and j relocation. */
13108 struct elf_nds32_ifc_symbol_entry
13111 struct elf_link_hash_entry *h;
13112 struct elf_nds32_ifc_irel_list *irel_head;
13113 unsigned long insn;
13115 int enable; /* Apply ifc. */
13116 int ex9_enable; /* Apply ifc after ex9. */
13117 struct elf_nds32_ifc_symbol_entry *next;
13120 struct elf_nds32_ifc_irel_list
13122 Elf_Internal_Rela *irel;
13125 /* If this is set, then it is the last instruction for
13126 ifc-chain, so it must be keep for the actual branching. */
13128 struct elf_nds32_ifc_irel_list *next;
13131 static struct elf_nds32_ifc_symbol_entry *ifc_symbol_head = NULL;
13133 /* Insert symbol of jal and j for ifc. */
13136 nds32_elf_ifc_insert_symbol (asection *sec,
13137 struct elf_link_hash_entry *h,
13138 Elf_Internal_Rela *irel,
13139 unsigned long insn)
13141 struct elf_nds32_ifc_symbol_entry *ptr = ifc_symbol_head;
13143 /* Check there is target of existing entry the same as the new one. */
13144 while (ptr != NULL)
13146 if (((h == NULL && ptr->sec == sec
13147 && ELF32_R_SYM (ptr->irel_head->irel->r_info) == ELF32_R_SYM (irel->r_info)
13148 && ptr->irel_head->irel->r_addend == irel->r_addend)
13151 && ptr->insn == insn)
13153 /* The same target exist, so insert into list. */
13154 struct elf_nds32_ifc_irel_list *irel_list = ptr->irel_head;
13156 while (irel_list->next != NULL)
13157 irel_list = irel_list->next;
13158 irel_list->next = bfd_malloc (sizeof (struct elf_nds32_ifc_irel_list));
13159 irel_list = irel_list->next;
13160 irel_list->irel = irel;
13161 irel_list->keep = 1;
13164 irel_list->sec = NULL;
13166 irel_list->sec = sec;
13167 irel_list->next = NULL;
13170 if (ptr->next == NULL)
13175 /* There is no same target entry, so build a new one. */
13176 if (ifc_symbol_head == NULL)
13178 ifc_symbol_head = bfd_malloc (sizeof (struct elf_nds32_ifc_symbol_entry));
13179 ptr = ifc_symbol_head;
13183 ptr->next = bfd_malloc (sizeof (struct elf_nds32_ifc_symbol_entry));
13188 ptr->irel_head = bfd_malloc (sizeof (struct elf_nds32_ifc_irel_list));
13189 ptr->irel_head->irel = irel;
13191 ptr->irel_head->keep = 1;
13195 /* Local symbols. */
13197 ptr->irel_head->sec = NULL;
13201 /* Global symbol. */
13203 ptr->irel_head->sec = sec;
13206 ptr->irel_head->next = NULL;
13209 ptr->ex9_enable = 0;
13213 /* Gather all jal and j instructions. */
13216 nds32_elf_ifc_calc (struct bfd_link_info *info,
13217 bfd *abfd, asection *sec)
13219 Elf_Internal_Rela *internal_relocs;
13220 Elf_Internal_Rela *irelend;
13221 Elf_Internal_Rela *irel;
13222 Elf_Internal_Shdr *symtab_hdr;
13223 bfd_byte *contents = NULL;
13224 uint32_t insn, insn_with_reg;
13225 unsigned long r_symndx;
13226 struct elf_link_hash_entry *h;
13227 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (abfd);
13228 struct elf_nds32_link_hash_table *table;
13229 bfd_boolean ifc_loop_aware;
13231 internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL,
13232 TRUE /* keep_memory */);
13233 irelend = internal_relocs + sec->reloc_count;
13234 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
13236 /* Check if the object enable ifc. */
13237 irel = find_relocs_at_address (internal_relocs, internal_relocs, irelend,
13238 R_NDS32_RELAX_ENTRY);
13242 || ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_ENTRY
13243 || (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY
13244 && !(irel->r_addend & R_NDS32_RELAX_ENTRY_IFC_FLAG)))
13247 if (!nds32_get_section_contents (abfd, sec, &contents, TRUE))
13250 table = nds32_elf_hash_table (info);
13251 ifc_loop_aware = table->ifc_loop_aware;
13252 while (irel != NULL && irel < irelend)
13254 /* Traverse all relocation and gather all of them to build the list. */
13256 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN)
13258 if (ifc_loop_aware == 1
13259 && (irel->r_addend & R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG) != 0)
13261 /* Check the region if loop or not. If it is true and
13262 ifc-loop-aware is true, ignore the region till region end. */
13263 while (irel != NULL
13265 && (ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_REGION_END
13266 || (irel->r_addend & R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG) != 0))
13271 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_25_PCREL_RELA)
13273 insn = bfd_getb32 (contents + irel->r_offset);
13274 nds32_elf_get_insn_with_reg (irel, insn, &insn_with_reg);
13275 r_symndx = ELF32_R_SYM (irel->r_info);
13276 if (r_symndx < symtab_hdr->sh_info)
13278 /* Local symbol. */
13279 nds32_elf_ifc_insert_symbol (sec, NULL, irel, insn_with_reg);
13283 /* External symbol. */
13284 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
13285 nds32_elf_ifc_insert_symbol (sec, h, irel, insn_with_reg);
13293 /* Determine whether j and jal should be substituted. */
13296 nds32_elf_ifc_filter (struct bfd_link_info *info)
13298 struct elf_nds32_ifc_symbol_entry *ptr = ifc_symbol_head;
13299 struct elf_nds32_ifc_irel_list *irel_ptr = NULL;
13300 struct elf_nds32_ifc_irel_list *irel_keeper = NULL;
13301 struct elf_nds32_link_hash_table *table;
13302 int target_optimize;
13305 table = nds32_elf_hash_table (info);
13306 target_optimize = table->target_optimize;
13309 irel_ptr = ptr->irel_head;
13310 if (ptr->h == NULL)
13312 /* Local symbol. */
13313 irel_keeper = irel_ptr;
13314 while (irel_ptr && irel_ptr->next)
13316 /* Check there is jump target can be used. */
13317 if ((irel_ptr->next->irel->r_offset
13318 - irel_keeper->irel->r_offset) > 1022)
13319 irel_keeper = irel_ptr->next;
13323 irel_ptr->keep = 0;
13325 irel_ptr = irel_ptr->next;
13330 /* Global symbol. */
13331 /* We have to get the absolute address and decide
13332 whether to keep it or not. */
13335 address = (irel_ptr->irel->r_offset
13336 + irel_ptr->sec->output_section->vma
13337 + irel_ptr->sec->output_offset);
13338 irel_ptr->addr = address;
13339 irel_ptr = irel_ptr->next;
13342 irel_ptr = ptr->irel_head;
13345 /* Sort by address. */
13346 struct elf_nds32_ifc_irel_list *irel_dest = irel_ptr;
13347 struct elf_nds32_ifc_irel_list *irel_temp = irel_ptr;
13348 struct elf_nds32_ifc_irel_list *irel_ptr_prev = NULL;
13349 struct elf_nds32_ifc_irel_list *irel_dest_prev = NULL;
13351 /* Get the smallest one. */
13352 while (irel_temp->next)
13354 if (irel_temp->next->addr < irel_dest->addr)
13356 irel_dest_prev = irel_temp;
13357 irel_dest = irel_temp->next;
13359 irel_temp = irel_temp->next;
13362 if (irel_dest != irel_ptr)
13365 irel_ptr_prev->next = irel_dest;
13366 if (irel_dest_prev)
13367 irel_dest_prev->next = irel_ptr;
13368 irel_temp = irel_ptr->next;
13369 irel_ptr->next = irel_dest->next;
13370 irel_dest->next = irel_temp;
13372 irel_ptr_prev = irel_ptr;
13373 irel_ptr = irel_ptr->next;
13376 irel_ptr = ptr->irel_head;
13377 irel_keeper = irel_ptr;
13378 while (irel_ptr && irel_ptr->next)
13380 if ((irel_ptr->next->addr - irel_keeper->addr) > 1022)
13381 irel_keeper = irel_ptr->next;
13385 irel_ptr->keep = 0;
13387 irel_ptr = irel_ptr->next;
13391 /* Ex9 enable. Reserve it for ex9. */
13392 if ((target_optimize & NDS32_RELAX_EX9_ON)
13393 && ptr->irel_head != irel_keeper)
13399 /* Determine whether j and jal should be substituted after ex9 done. */
13402 nds32_elf_ifc_filter_after_ex9 (void)
13404 struct elf_nds32_ifc_symbol_entry *ptr = ifc_symbol_head;
13405 struct elf_nds32_ifc_irel_list *irel_ptr = NULL;
13409 if (ptr->enable == 0)
13411 /* Check whether ifc is applied or not. */
13412 irel_ptr = ptr->irel_head;
13413 ptr->ex9_enable = 1;
13416 if (ELF32_R_TYPE (irel_ptr->irel->r_info) == R_NDS32_TRAN)
13419 ptr->ex9_enable = 0;
13422 irel_ptr = irel_ptr->next;
13429 /* Wrapper to do ifc relaxation. */
13432 nds32_elf_ifc_finish (struct bfd_link_info *info)
13435 struct elf_nds32_link_hash_table *table;
13437 table = nds32_elf_hash_table (info);
13438 relax_status = table->relax_status;
13440 if (!(relax_status & NDS32_RELAX_JUMP_IFC_DONE))
13441 nds32_elf_ifc_filter (info);
13443 nds32_elf_ifc_filter_after_ex9 ();
13445 if (!nds32_elf_ifc_replace (info))
13449 table->relax_status |= NDS32_RELAX_JUMP_IFC_DONE;
13453 /* Traverse the result of ifc filter and replace it with ifcall9. */
13456 nds32_elf_ifc_replace (struct bfd_link_info *info)
13458 struct elf_nds32_ifc_symbol_entry *ptr = ifc_symbol_head;
13459 struct elf_nds32_ifc_irel_list *irel_ptr = NULL;
13460 nds32_elf_blank_t *relax_blank_list = NULL;
13461 bfd_byte *contents = NULL;
13462 Elf_Internal_Rela *internal_relocs;
13463 Elf_Internal_Rela *irel;
13464 Elf_Internal_Rela *irelend;
13465 unsigned short insn16 = INSN_IFCALL9;
13466 struct elf_nds32_link_hash_table *table;
13469 table = nds32_elf_hash_table (info);
13470 relax_status = table->relax_status;
13474 /* Traverse the ifc gather list, and replace the
13475 filter entries by ifcall9. */
13476 if ((!(relax_status & NDS32_RELAX_JUMP_IFC_DONE) && ptr->enable == 1)
13477 || ((relax_status & NDS32_RELAX_JUMP_IFC_DONE)
13478 && ptr->ex9_enable == 1))
13480 irel_ptr = ptr->irel_head;
13481 if (ptr->h == NULL)
13483 /* Local symbol. */
13484 internal_relocs = _bfd_elf_link_read_relocs
13485 (ptr->sec->owner, ptr->sec, NULL, NULL, TRUE /* keep_memory */);
13486 irelend = internal_relocs + ptr->sec->reloc_count;
13488 if (!nds32_get_section_contents (ptr->sec->owner, ptr->sec,
13494 if (irel_ptr->keep == 0 && irel_ptr->next)
13496 /* The one can be replaced. We have to check whether
13497 there is any alignment point in the region. */
13498 irel = irel_ptr->irel;
13499 while (((irel_ptr->next->keep == 0
13500 && irel < irel_ptr->next->irel)
13501 || (irel_ptr->next->keep == 1 && irel < irelend))
13502 && !(ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL
13503 && (irel->r_addend & 0x1f) == 2))
13505 if (irel >= irelend
13506 || !(ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL
13507 && (irel->r_addend & 0x1f) == 2
13508 && ((irel->r_offset - get_nds32_elf_blank_total
13509 (&relax_blank_list, irel->r_offset, 1))
13512 /* Replace by ifcall9. */
13513 bfd_putb16 (insn16, contents + irel_ptr->irel->r_offset);
13514 if (!insert_nds32_elf_blank_recalc_total
13515 (&relax_blank_list, irel_ptr->irel->r_offset + 2, 2))
13517 irel_ptr->irel->r_info =
13518 ELF32_R_INFO (ELF32_R_SYM (irel_ptr->irel->r_info),
13519 R_NDS32_10IFCU_PCREL_RELA);
13522 irel_ptr = irel_ptr->next;
13525 /* Delete the redundant code. */
13526 if (relax_blank_list)
13528 nds32_elf_relax_delete_blanks (ptr->sec->owner, ptr->sec,
13530 relax_blank_list = NULL;
13535 /* Global symbol. */
13538 if (irel_ptr->keep == 0 && irel_ptr->next)
13540 /* The one can be replaced, and we have to check
13541 whether there is any alignment point in the region. */
13542 internal_relocs = _bfd_elf_link_read_relocs
13543 (irel_ptr->sec->owner, irel_ptr->sec, NULL, NULL,
13544 TRUE /* keep_memory */);
13545 irelend = internal_relocs + irel_ptr->sec->reloc_count;
13546 if (!nds32_get_section_contents (irel_ptr->sec->owner,
13547 irel_ptr->sec, &contents,
13551 irel = irel_ptr->irel;
13552 while (((irel_ptr->sec == irel_ptr->next->sec
13553 && irel_ptr->next->keep == 0
13554 && irel < irel_ptr->next->irel)
13555 || ((irel_ptr->sec != irel_ptr->next->sec
13556 || irel_ptr->next->keep == 1)
13557 && irel < irelend))
13558 && !(ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL
13559 && (irel->r_addend & 0x1f) == 2))
13561 if (irel >= irelend
13562 || !(ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL
13563 && (irel->r_addend & 0x1f) == 2
13564 && ((irel->r_offset
13565 - get_nds32_elf_blank_total (&relax_blank_list,
13566 irel->r_offset, 1)) & 0x02) == 0))
13568 /* Replace by ifcall9. */
13569 bfd_putb16 (insn16, contents + irel_ptr->irel->r_offset);
13570 if (!insert_nds32_elf_blank_recalc_total
13571 (&relax_blank_list, irel_ptr->irel->r_offset + 2, 2))
13574 /* Delete the redundant code, and clear the relocation. */
13575 nds32_elf_relax_delete_blanks (irel_ptr->sec->owner,
13578 irel_ptr->irel->r_info =
13579 ELF32_R_INFO (ELF32_R_SYM (irel_ptr->irel->r_info),
13580 R_NDS32_10IFCU_PCREL_RELA);
13581 relax_blank_list = NULL;
13585 irel_ptr = irel_ptr->next;
13595 /* Relocate ifcall. */
13598 nds32_elf_ifc_reloc (void)
13600 struct elf_nds32_ifc_symbol_entry *ptr = ifc_symbol_head;
13601 struct elf_nds32_ifc_irel_list *irel_ptr = NULL;
13602 struct elf_nds32_ifc_irel_list *irel_keeper = NULL;
13603 bfd_vma relocation, address;
13604 unsigned short insn16;
13605 bfd_byte *contents = NULL;
13606 static bfd_boolean done = FALSE;
13615 /* Check the entry is enable ifcall. */
13616 if (ptr->enable == 1 || ptr->ex9_enable == 1)
13618 /* Get the reserve jump. */
13619 irel_ptr = ptr->irel_head;
13622 if (irel_ptr->keep == 1)
13624 irel_keeper = irel_ptr;
13627 irel_ptr = irel_ptr->next;
13630 irel_ptr = ptr->irel_head;
13631 if (ptr->h == NULL)
13633 /* Local symbol. */
13634 if (!nds32_get_section_contents (ptr->sec->owner, ptr->sec,
13640 if (irel_ptr->keep == 0
13641 && ELF32_R_TYPE (irel_ptr->irel->r_info) == R_NDS32_10IFCU_PCREL_RELA)
13643 relocation = irel_keeper->irel->r_offset;
13644 relocation = relocation - irel_ptr->irel->r_offset;
13645 while (irel_keeper && relocation > 1022)
13647 irel_keeper = irel_keeper->next;
13648 if (irel_keeper && irel_keeper->keep == 1)
13650 relocation = irel_keeper->irel->r_offset;
13651 relocation = relocation - irel_ptr->irel->r_offset;
13654 if (relocation > 1022)
13656 /* Double check. */
13657 irel_keeper = ptr->irel_head;
13658 while (irel_keeper)
13660 if (irel_keeper->keep == 1)
13662 relocation = irel_keeper->irel->r_offset;
13663 relocation = relocation - irel_ptr->irel->r_offset;
13665 if (relocation <= 1022)
13667 irel_keeper = irel_keeper->next;
13672 irel_ptr->irel->r_info =
13673 ELF32_R_INFO (ELF32_R_SYM (irel_ptr->irel->r_info),
13675 insn16 = INSN_IFCALL9 | (relocation >> 1);
13676 bfd_putb16 (insn16, contents + irel_ptr->irel->r_offset);
13678 irel_ptr = irel_ptr->next;
13683 /* Global symbol. */
13686 if (irel_ptr->keep == 0
13687 && ELF32_R_TYPE (irel_ptr->irel->r_info) == R_NDS32_10IFCU_PCREL_RELA)
13689 /* Get the distance between ifcall and jump. */
13690 relocation = (irel_keeper->irel->r_offset
13691 + irel_keeper->sec->output_section->vma
13692 + irel_keeper->sec->output_offset);
13693 address = (irel_ptr->irel->r_offset
13694 + irel_ptr->sec->output_section->vma
13695 + irel_ptr->sec->output_offset);
13696 relocation = relocation - address;
13698 /* The distance is over ragne, find callee again. */
13699 while (irel_keeper && relocation > 1022)
13701 irel_keeper = irel_keeper->next;
13702 if (irel_keeper && irel_keeper->keep ==1)
13704 relocation = (irel_keeper->irel->r_offset
13705 + irel_keeper->sec->output_section->vma
13706 + irel_keeper->sec->output_offset);
13707 relocation = relocation - address;
13711 if (relocation > 1022)
13713 /* Double check. */
13714 irel_keeper = ptr->irel_head;
13715 while (irel_keeper)
13717 if (irel_keeper->keep == 1)
13720 relocation = (irel_keeper->irel->r_offset
13721 + irel_keeper->sec->output_section->vma
13722 + irel_keeper->sec->output_offset);
13723 relocation = relocation - address;
13725 if (relocation <= 1022)
13727 irel_keeper = irel_keeper->next;
13732 if (!nds32_get_section_contents
13733 (irel_ptr->sec->owner, irel_ptr->sec, &contents, TRUE))
13735 insn16 = INSN_IFCALL9 | (relocation >> 1);
13736 bfd_putb16 (insn16, contents + irel_ptr->irel->r_offset);
13737 irel_ptr->irel->r_info =
13738 ELF32_R_INFO (ELF32_R_SYM (irel_ptr->irel->r_info),
13741 irel_ptr =irel_ptr->next;
13751 /* End of IFC relaxation. */
13753 /* EX9 Instruction Table Relaxation. */
13755 /* Global hash list. */
13756 struct elf_link_hash_entry_list
13758 struct elf_link_hash_entry *h;
13759 struct elf_link_hash_entry_list *next;
13762 /* Save different destination but same insn. */
13763 struct elf_link_hash_entry_mul_list
13765 /* Global symbol times. */
13767 /* Save relocation for each global symbol but useful?? */
13768 Elf_Internal_Rela *irel;
13769 /* For sethi, two sethi may have the same high-part but different low-parts. */
13770 Elf_Internal_Rela rel_backup;
13771 struct elf_link_hash_entry_list *h_list;
13772 struct elf_link_hash_entry_mul_list *next;
13775 /* Instruction hash table. */
13776 struct elf_nds32_code_hash_entry
13778 struct bfd_hash_entry root;
13780 /* For insn that can use relocation or constant ex: sethi. */
13783 struct elf_link_hash_entry_mul_list *m_list;
13784 /* Using r_addend. */
13785 Elf_Internal_Rela *irel;
13786 /* Using r_info. */
13787 Elf_Internal_Rela rel_backup;
13790 /* Instruction count list. */
13791 struct elf_nds32_insn_times_entry
13793 const char *string;
13797 struct elf_link_hash_entry_mul_list *m_list;
13798 Elf_Internal_Rela *irel;
13799 Elf_Internal_Rela rel_backup;
13800 struct elf_nds32_insn_times_entry *next;
13803 /* J and JAL symbol list. */
13804 struct elf_nds32_symbol_entry
13807 unsigned long insn;
13808 struct elf_nds32_symbol_entry *next;
13811 /* Relocation list. */
13812 struct elf_nds32_irel_entry
13814 Elf_Internal_Rela *irel;
13815 struct elf_nds32_irel_entry *next;
13818 /* ex9.it insn need to be fixed. */
13819 struct elf_nds32_ex9_refix
13821 Elf_Internal_Rela *irel;
13823 struct elf_link_hash_entry *h;
13825 struct elf_nds32_ex9_refix *next;
13828 static struct bfd_hash_table ex9_code_table;
13829 static struct elf_nds32_insn_times_entry *ex9_insn_head = NULL;
13830 static struct elf_nds32_ex9_refix *ex9_refix_head = NULL;
13832 /* EX9 hash function. */
13834 static struct bfd_hash_entry *
13835 nds32_elf_code_hash_newfunc (struct bfd_hash_entry *entry,
13836 struct bfd_hash_table *table,
13837 const char *string)
13839 struct elf_nds32_code_hash_entry *ret;
13841 /* Allocate the structure if it has not already been allocated by a
13845 entry = (struct bfd_hash_entry *)
13846 bfd_hash_allocate (table, sizeof (*ret));
13851 /* Call the allocation method of the superclass. */
13852 entry = bfd_hash_newfunc (entry, table, string);
13856 ret = (struct elf_nds32_code_hash_entry*) entry;
13858 ret->const_insn = 0;
13859 ret->m_list = NULL;
13865 /* Insert ex9 entry
13866 this insert must be stable sorted by times. */
13869 nds32_elf_ex9_insert_entry (struct elf_nds32_insn_times_entry *ptr)
13871 struct elf_nds32_insn_times_entry *temp;
13872 struct elf_nds32_insn_times_entry *temp2;
13874 if (ex9_insn_head == NULL)
13876 ex9_insn_head = ptr;
13881 temp = ex9_insn_head;
13882 temp2 = ex9_insn_head;
13883 while (temp->next &&
13884 (temp->next->times >= ptr->times
13885 || temp->times == -1))
13887 if (temp->times == -1)
13891 if (ptr->times > temp->times && temp->times != -1)
13894 if (temp2->times == -1)
13897 ex9_insn_head = ptr;
13899 else if (temp->next == NULL)
13906 ptr->next = temp->next;
13912 /* Examine each insn times in hash table.
13913 Handle multi-link hash entry.
13915 TODO: This function doesn't assign so much info since it is fake. */
13918 nds32_elf_examine_insn_times (struct elf_nds32_code_hash_entry *h)
13920 struct elf_nds32_insn_times_entry *ptr;
13923 if (h->m_list == NULL)
13925 /* Local symbol insn or insn without relocation. */
13929 ptr = (struct elf_nds32_insn_times_entry *)
13930 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry));
13931 ptr->times = h->times;
13932 ptr->string = h->root.string;
13933 ptr->m_list = NULL;
13935 ptr->irel = h->irel;
13936 ptr->rel_backup = h->rel_backup;
13937 nds32_elf_ex9_insert_entry (ptr);
13941 /* Global symbol insn. */
13942 /* Only sethi insn has multiple m_list. */
13943 struct elf_link_hash_entry_mul_list *m_list = h->m_list;
13948 times += m_list->times;
13949 m_list = m_list->next;
13953 m_list = h->m_list;
13954 ptr = (struct elf_nds32_insn_times_entry *)
13955 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry));
13956 ptr->times = times; /* Use the total times. */
13957 ptr->string = h->root.string;
13958 ptr->m_list = m_list;
13960 ptr->irel = m_list->irel;
13961 ptr->rel_backup = m_list->rel_backup;
13962 nds32_elf_ex9_insert_entry (ptr);
13964 if (h->const_insn == 1)
13966 /* sethi with constant value. */
13970 ptr = (struct elf_nds32_insn_times_entry *)
13971 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry));
13972 ptr->times = h->times;
13973 ptr->string = h->root.string;
13974 ptr->m_list = NULL;
13977 ptr->rel_backup = h->rel_backup;
13978 nds32_elf_ex9_insert_entry (ptr);
13984 /* Count each insn times in hash table.
13985 Handle multi-link hash entry. */
13988 nds32_elf_count_insn_times (struct elf_nds32_code_hash_entry *h)
13990 int reservation, times;
13991 unsigned long relocation, min_relocation;
13992 struct elf_nds32_insn_times_entry *ptr;
13994 if (h->m_list == NULL)
13996 /* Local symbol insn or insn without relocation. */
13999 ptr = (struct elf_nds32_insn_times_entry *)
14000 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry));
14001 ptr->times = h->times;
14002 ptr->string = h->root.string;
14003 ptr->m_list = NULL;
14005 ptr->irel = h->irel;
14006 ptr->rel_backup = h->rel_backup;
14007 nds32_elf_ex9_insert_entry (ptr);
14011 /* Global symbol insn. */
14012 /* Only sethi insn has multiple m_list. */
14013 struct elf_link_hash_entry_mul_list *m_list = h->m_list;
14015 if (ELF32_R_TYPE (m_list->rel_backup.r_info) == R_NDS32_HI20_RELA
14016 && m_list->next != NULL)
14018 /* Sethi insn has different symbol or addend but has same hi20. */
14022 min_relocation = 0xffffffff;
14025 /* Get the minimum sethi address
14026 and calculate how many entry the sethi-list have to use. */
14027 if ((m_list->h_list->h->root.type == bfd_link_hash_defined
14028 || m_list->h_list->h->root.type == bfd_link_hash_defweak)
14029 && (m_list->h_list->h->root.u.def.section != NULL
14030 && m_list->h_list->h->root.u.def.section->output_section != NULL))
14032 relocation = (m_list->h_list->h->root.u.def.value +
14033 m_list->h_list->h->root.u.def.section->output_section->vma +
14034 m_list->h_list->h->root.u.def.section->output_offset);
14035 relocation += m_list->irel->r_addend;
14039 if (relocation < min_relocation)
14040 min_relocation = relocation;
14041 times += m_list->times;
14042 m_list = m_list->next;
14044 if (min_relocation < ex9_relax_size)
14045 reservation = (min_relocation >> 12) + 1;
14047 reservation = (min_relocation >> 12)
14048 - ((min_relocation - ex9_relax_size) >> 12) + 1;
14049 if (reservation < (times / 3))
14051 /* Efficient enough to use ex9. */
14054 for (i = reservation ; i > 0; i--)
14056 /* Allocate number of reservation ex9 entry. */
14057 ptr = (struct elf_nds32_insn_times_entry *)
14058 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry));
14059 ptr->times = h->m_list->times / reservation;
14060 ptr->string = h->root.string;
14061 ptr->m_list = h->m_list;
14063 ptr->irel = h->m_list->irel;
14064 ptr->rel_backup = h->m_list->rel_backup;
14065 nds32_elf_ex9_insert_entry (ptr);
14071 /* Normal global symbol that means no different address symbol
14072 using same ex9 entry. */
14073 if (m_list->times >= 3)
14075 ptr = (struct elf_nds32_insn_times_entry *)
14076 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry));
14077 ptr->times = m_list->times;
14078 ptr->string = h->root.string;
14079 ptr->m_list = h->m_list;
14081 ptr->irel = h->m_list->irel;
14082 ptr->rel_backup = h->m_list->rel_backup;
14083 nds32_elf_ex9_insert_entry (ptr);
14087 if (h->const_insn == 1)
14089 /* sethi with constant value. */
14093 ptr = (struct elf_nds32_insn_times_entry *)
14094 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry));
14095 ptr->times = h->times;
14096 ptr->string = h->root.string;
14097 ptr->m_list = NULL;
14100 ptr->rel_backup = h->rel_backup;
14101 nds32_elf_ex9_insert_entry (ptr);
14108 /* Hash table traverse function. */
14111 nds32_elf_code_hash_traverse (int (*func) (struct elf_nds32_code_hash_entry*))
14115 ex9_code_table.frozen = 1;
14116 for (i = 0; i < ex9_code_table.size; i++)
14118 struct bfd_hash_entry *p;
14120 for (p = ex9_code_table.table[i]; p != NULL; p = p->next)
14121 if (!func ((struct elf_nds32_code_hash_entry *) p))
14125 ex9_code_table.frozen = 0;
14129 /* Give order number to insn list. */
14132 nds32_elf_order_insn_times (struct bfd_link_info *info)
14134 struct elf_nds32_insn_times_entry *ex9_insn;
14135 struct elf_nds32_insn_times_entry *temp = NULL;
14136 struct elf_nds32_link_hash_table *table;
14140 if (ex9_insn_head == NULL)
14143 /* The max number of entries is 512. */
14144 ex9_insn = ex9_insn_head;
14145 table = nds32_elf_hash_table (info);
14146 ex9_limit = table->ex9_limit;
14148 ex9_insn = ex9_insn_head;
14150 while (ex9_insn != NULL && number < ex9_limit)
14152 ex9_insn->order = number;
14155 ex9_insn = ex9_insn->next;
14158 if (ex9_insn && temp)
14161 while (ex9_insn != NULL)
14163 /* Free useless entry. */
14165 ex9_insn = ex9_insn->next;
14170 /* Build .ex9.itable section. */
14173 nds32_elf_ex9_build_itable (struct bfd_link_info *link_info)
14175 asection *table_sec;
14176 struct elf_nds32_insn_times_entry *ptr;
14179 bfd_byte *contents = NULL;
14181 for (it_abfd = link_info->input_bfds; it_abfd != NULL;
14182 it_abfd = it_abfd->link.next)
14184 /* Find the section .ex9.itable, and put all entries into it. */
14185 table_sec = bfd_get_section_by_name (it_abfd, ".ex9.itable");
14186 if (table_sec != NULL)
14188 if (!nds32_get_section_contents (it_abfd, table_sec, &contents, TRUE))
14191 for (ptr = ex9_insn_head; ptr !=NULL ; ptr = ptr->next)
14194 table_sec->size = number * 4;
14199 elf_elfheader (link_info->output_bfd)->e_flags |= E_NDS32_HAS_EX9_INST;
14201 for (ptr = ex9_insn_head; ptr !=NULL ; ptr = ptr->next)
14205 val = strtol (ptr->string, NULL, 16);
14206 bfd_putb32 ((bfd_vma) val, (char *) contents + (number * 4));
14214 /* Get insn with regs according to relocation type. */
14217 nds32_elf_get_insn_with_reg (Elf_Internal_Rela *irel,
14218 uint32_t insn, uint32_t *insn_with_reg)
14220 reloc_howto_type *howto = NULL;
14223 || (ELF32_R_TYPE (irel->r_info) >= (int) ARRAY_SIZE (nds32_elf_howto_table)
14224 && (ELF32_R_TYPE (irel->r_info) - R_NDS32_RELAX_ENTRY)
14225 >= (int) ARRAY_SIZE (nds32_elf_relax_howto_table)))
14227 *insn_with_reg = insn;
14231 howto = bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel->r_info));
14232 *insn_with_reg = insn & (0xffffffff ^ howto->dst_mask);
14235 /* Mask number of address bits according to relocation. */
14237 static unsigned long
14238 nds32_elf_irel_mask (Elf_Internal_Rela *irel)
14240 reloc_howto_type *howto = NULL;
14243 || (ELF32_R_TYPE (irel->r_info) >= (int) ARRAY_SIZE (nds32_elf_howto_table)
14244 && (ELF32_R_TYPE (irel->r_info) - R_NDS32_RELAX_ENTRY)
14245 >= (int) ARRAY_SIZE (nds32_elf_relax_howto_table)))
14248 howto = bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel->r_info));
14249 return howto->dst_mask;
14253 nds32_elf_insert_irel_entry (struct elf_nds32_irel_entry **irel_list,
14254 struct elf_nds32_irel_entry *irel_ptr)
14256 if (*irel_list == NULL)
14258 *irel_list = irel_ptr;
14259 irel_ptr->next = NULL;
14263 irel_ptr->next = *irel_list;
14264 *irel_list = irel_ptr;
14269 nds32_elf_ex9_insert_fix (asection * sec, Elf_Internal_Rela * irel,
14270 struct elf_link_hash_entry *h, int order)
14272 struct elf_nds32_ex9_refix *ptr;
14274 ptr = bfd_malloc (sizeof (struct elf_nds32_ex9_refix));
14278 ptr->order = order;
14281 if (ex9_refix_head == NULL)
14282 ex9_refix_head = ptr;
14285 struct elf_nds32_ex9_refix *temp = ex9_refix_head;
14287 while (temp->next != NULL)
14296 CLEAN_PRE = 1 << 1,
14300 /* Check relocation type if supporting for ex9. */
14303 nds32_elf_ex9_relocation_check (struct bfd_link_info *info,
14304 Elf_Internal_Rela **irel,
14305 Elf_Internal_Rela *irelend,
14306 nds32_elf_blank_t *relax_blank_list,
14307 asection *sec,bfd_vma *off,
14308 bfd_byte *contents)
14310 /* Suppress ex9 if `.no_relax ex9' or inner loop. */
14311 bfd_boolean nested_ex9, nested_loop;
14312 bfd_boolean ex9_loop_aware;
14313 /* We use the highest 1 byte of result to record
14314 how many bytes location counter has to move. */
14316 Elf_Internal_Rela *irel_save = NULL;
14317 struct elf_nds32_link_hash_table *table;
14319 table = nds32_elf_hash_table (info);
14320 ex9_loop_aware = table->ex9_loop_aware;
14322 while ((*irel) != NULL && (*irel) < irelend && *off == (*irel)->r_offset)
14324 switch (ELF32_R_TYPE ((*irel)->r_info))
14326 case R_NDS32_RELAX_REGION_BEGIN:
14327 /* Ignore code block. */
14328 nested_ex9 = FALSE;
14329 nested_loop = FALSE;
14330 if (((*irel)->r_addend & R_NDS32_RELAX_REGION_NO_EX9_FLAG)
14332 && ((*irel)->r_addend & R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG)))
14334 /* Check the region if loop or not. If it is true and
14335 ex9-loop-aware is true, ignore the region till region end. */
14336 /* To save the status for in .no_relax ex9 region and
14337 loop region to conform the block can do ex9 relaxation. */
14338 nested_ex9 = ((*irel)->r_addend & R_NDS32_RELAX_REGION_NO_EX9_FLAG);
14339 nested_loop = (ex9_loop_aware
14340 && ((*irel)->r_addend & R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG));
14341 while ((*irel) && (*irel) < irelend && (nested_ex9 || nested_loop))
14344 if (ELF32_R_TYPE ((*irel)->r_info) == R_NDS32_RELAX_REGION_BEGIN)
14346 /* There may be nested region. */
14347 if (((*irel)->r_addend & R_NDS32_RELAX_REGION_NO_EX9_FLAG) != 0)
14349 else if (ex9_loop_aware
14350 && ((*irel)->r_addend & R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG))
14351 nested_loop = TRUE;
14353 else if (ELF32_R_TYPE ((*irel)->r_info) == R_NDS32_RELAX_REGION_END)
14355 /* The end of region. */
14356 if (((*irel)->r_addend & R_NDS32_RELAX_REGION_NO_EX9_FLAG) != 0)
14357 nested_ex9 = FALSE;
14358 else if (ex9_loop_aware
14359 && ((*irel)->r_addend & R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG))
14360 nested_loop = FALSE;
14362 else if (ELF32_R_TYPE ((*irel)->r_info) == R_NDS32_LABEL
14363 && ((*irel)->r_addend & 0x1f) == 2)
14365 /* Alignment exist in the region. */
14366 result |= CLEAN_PRE;
14367 if (((*irel)->r_offset -
14368 get_nds32_elf_blank_total (&relax_blank_list,
14369 (*irel)->r_offset, 0)) & 0x02)
14370 result |= PUSH_PRE;
14373 if ((*irel) >= irelend)
14376 *off = (*irel)->r_offset;
14378 /* The final instruction in the region, regard this one as data to ignore it. */
14379 result |= DATA_EXIST;
14384 case R_NDS32_LABEL:
14385 if (((*irel)->r_addend & 0x1f) == 2)
14387 /* Check this point is align and decide to do ex9 or not. */
14388 result |= CLEAN_PRE;
14389 if (((*irel)->r_offset -
14390 get_nds32_elf_blank_total (&relax_blank_list,
14391 (*irel)->r_offset, 0)) & 0x02)
14392 result |= PUSH_PRE;
14395 case R_NDS32_32_RELA:
14397 result |= (4 << 24);
14398 result |= DATA_EXIST;
14400 case R_NDS32_16_RELA:
14402 result |= (2 << 24);
14403 result |= DATA_EXIST;
14407 /* The least code alignment is 2. If the data is only one byte,
14408 we have to shift one more byte. */
14409 if ((*irel)->r_addend == 1)
14410 result |= ((*irel)->r_addend << 25) ;
14412 result |= ((*irel)->r_addend << 24) ;
14414 result |= DATA_EXIST;
14417 case R_NDS32_25_PCREL_RELA:
14418 case R_NDS32_SDA16S3_RELA:
14419 case R_NDS32_SDA15S3_RELA:
14420 case R_NDS32_SDA15S3:
14421 case R_NDS32_SDA17S2_RELA:
14422 case R_NDS32_SDA15S2_RELA:
14423 case R_NDS32_SDA12S2_SP_RELA:
14424 case R_NDS32_SDA12S2_DP_RELA:
14425 case R_NDS32_SDA15S2:
14426 case R_NDS32_SDA18S1_RELA:
14427 case R_NDS32_SDA15S1_RELA:
14428 case R_NDS32_SDA15S1:
14429 case R_NDS32_SDA19S0_RELA:
14430 case R_NDS32_SDA15S0_RELA:
14431 case R_NDS32_SDA15S0:
14432 case R_NDS32_HI20_RELA:
14433 case R_NDS32_LO12S0_ORI_RELA:
14434 case R_NDS32_LO12S0_RELA:
14435 case R_NDS32_LO12S1_RELA:
14436 case R_NDS32_LO12S2_RELA:
14437 /* These relocation is supported ex9 relaxation currently. */
14438 /* We have to save the relocation for using later, since we have
14439 to check there is any alignment in the same address. */
14443 /* Not support relocations. */
14444 if (ELF32_R_TYPE ((*irel)->r_info) < ARRAY_SIZE (nds32_elf_howto_table)
14445 && ELF32_R_TYPE ((*irel)->r_info) != R_NDS32_NONE
14446 && ELF32_R_TYPE ((*irel)->r_info) != R_NDS32_INSN16)
14448 /* Note: To optimize aggressively, it maybe can ignore R_NDS32_INSN16 here.
14449 But we have to consider if there is any side-effect. */
14450 if (!(result & DATA_EXIST))
14452 /* We have to confirm there is no data relocation in the
14453 same address. In general case, this won't happen. */
14454 /* We have to do ex9 conservative, for those relocation not
14455 considerd we ignore instruction. */
14456 result |= DATA_EXIST;
14457 if (*(contents + *off) & 0x80)
14458 result |= (2 << 24);
14460 result |= (4 << 24);
14465 if ((*irel) < irelend
14466 && ((*irel) + 1) < irelend
14467 && (*irel)->r_offset == ((*irel) + 1)->r_offset)
14468 /* There are relocations pointing to the same address, we have to
14469 check all of them. */
14481 /* Replace with ex9 instruction. */
14484 nds32_elf_ex9_push_insn (uint16_t insn16, bfd_byte *contents, bfd_vma pre_off,
14485 nds32_elf_blank_t **relax_blank_list,
14486 struct elf_nds32_irel_entry *pre_irel_ptr,
14487 struct elf_nds32_irel_entry **irel_list)
14491 /* Implement the ex9 relaxation. */
14492 bfd_putb16 (insn16, contents + pre_off);
14493 if (!insert_nds32_elf_blank_recalc_total (relax_blank_list,
14496 if (pre_irel_ptr != NULL)
14497 nds32_elf_insert_irel_entry (irel_list, pre_irel_ptr);
14502 /* Replace input file instruction which is in ex9 itable. */
14505 nds32_elf_ex9_replace_instruction (struct bfd_link_info *info, bfd *abfd, asection *sec)
14507 struct elf_nds32_insn_times_entry *ex9_insn = ex9_insn_head;
14508 bfd_byte *contents = NULL;
14510 uint16_t insn16, insn_ex9;
14511 /* `pre_*' are used to track previous instruction that can use ex9.it. */
14512 bfd_vma pre_off = -1;
14513 uint16_t pre_insn16 = 0;
14514 struct elf_nds32_irel_entry *pre_irel_ptr = NULL;
14515 Elf_Internal_Rela *internal_relocs;
14516 Elf_Internal_Rela *irel;
14517 Elf_Internal_Rela *irelend;
14518 Elf_Internal_Shdr *symtab_hdr;
14519 Elf_Internal_Sym *isym = NULL;
14520 nds32_elf_blank_t *relax_blank_list = NULL;
14522 uint32_t insn_with_reg = 0;
14524 uint32_t it_insn_with_reg;
14525 unsigned long r_symndx;
14527 struct elf_nds32_irel_entry *irel_list = NULL;
14528 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (abfd);
14529 int data_flag, do_replace, save_irel;
14530 struct elf_link_hash_entry_list *h_list;
14533 /* Load section instructions, relocations, and symbol table. */
14534 if (!nds32_get_section_contents (abfd, sec, &contents, TRUE)
14535 || !nds32_get_local_syms (abfd, sec, &isym))
14538 _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, TRUE /* keep_memory */);
14539 irelend = internal_relocs + sec->reloc_count;
14540 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
14544 /* Check if the object enable ex9. */
14545 irel = find_relocs_at_address (internal_relocs, internal_relocs,
14546 irelend, R_NDS32_RELAX_ENTRY);
14548 /* Check this section trigger ex9 relaxation. */
14551 || ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_ENTRY
14552 || (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY
14553 && !(irel->r_addend & R_NDS32_RELAX_ENTRY_EX9_FLAG)))
14556 irel = internal_relocs;
14558 /* Check alignment and fetch proper relocation. */
14559 while (off < sec->size)
14561 struct elf_link_hash_entry *h = NULL;
14562 struct elf_nds32_irel_entry *irel_ptr = NULL;
14564 /* Syn the instruction and the relocation. */
14565 while (irel != NULL && irel < irelend && irel->r_offset < off)
14568 data_flag = nds32_elf_ex9_relocation_check (info, &irel, irelend,
14569 relax_blank_list, sec,
14571 if (data_flag & PUSH_PRE)
14572 if (!nds32_elf_ex9_push_insn (pre_insn16, contents, pre_off,
14573 &relax_blank_list, pre_irel_ptr,
14577 if (data_flag & CLEAN_PRE)
14581 pre_irel_ptr = NULL;
14583 if (data_flag & DATA_EXIST)
14585 /* We save the move offset in the highest byte. */
14586 off += (data_flag >> 24);
14590 if (*(contents + off) & 0x80)
14592 /* 2-byte instruction. */
14597 /* Load the instruction and its opcode with register for comparing. */
14598 ex9_insn = ex9_insn_head;
14599 insn = bfd_getb32 (contents + off);
14603 it_insn = strtol (ex9_insn->string, NULL, 16);
14604 it_insn_with_reg = 0;
14608 if (irel != NULL && irel < irelend && irel->r_offset == off)
14610 /* Insn with relocation. */
14611 nds32_elf_get_insn_with_reg (irel, insn, &insn_with_reg);
14613 if (ex9_insn->irel != NULL)
14614 nds32_elf_get_insn_with_reg (ex9_insn->irel, it_insn,
14615 &it_insn_with_reg);
14617 if (ex9_insn->irel != NULL
14618 && (ELF32_R_TYPE (irel->r_info) ==
14619 ELF32_R_TYPE (ex9_insn->irel->r_info))
14620 && (insn_with_reg == it_insn_with_reg))
14622 /* Insn relocation and format is the same as table entry. */
14624 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_25_PCREL_RELA
14625 || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S0_ORI_RELA
14626 || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S0_RELA
14627 || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S1_RELA
14628 || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_RELA
14629 || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA15S3
14630 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA15S0)
14631 || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA15S3_RELA
14632 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA15S0_RELA)
14633 || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA12S2_DP_RELA
14634 && ELF32_R_TYPE (irel->r_info) <=
14635 R_NDS32_SDA12S2_SP_RELA)
14636 || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA16S3_RELA
14637 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA19S0_RELA))
14639 r_symndx = ELF32_R_SYM (irel->r_info);
14640 if (r_symndx < symtab_hdr->sh_info)
14642 /* Local symbol. */
14643 int shndx = isym[r_symndx].st_shndx;
14645 isec = elf_elfsections (abfd)[shndx]->bfd_section;
14646 if (ex9_insn->sec == isec
14647 && ex9_insn->irel->r_addend == irel->r_addend
14648 && ex9_insn->irel->r_info == irel->r_info)
14656 /* External symbol. */
14657 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
14658 if (ex9_insn->m_list)
14660 h_list = ex9_insn->m_list->h_list;
14664 && (ex9_insn->m_list->irel->r_addend ==
14671 h_list = h_list->next;
14676 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_HI20_RELA)
14678 r_symndx = ELF32_R_SYM (irel->r_info);
14679 if (r_symndx < symtab_hdr->sh_info)
14681 /* Local symbols. Compare its base symbol and offset. */
14682 int shndx = isym[r_symndx].st_shndx;
14684 isec = elf_elfsections (abfd)[shndx]->bfd_section;
14685 if (ex9_insn->sec == isec
14686 && ex9_insn->irel->r_addend == irel->r_addend
14687 && ex9_insn->irel->r_info == irel->r_info)
14695 /* External symbol. */
14696 struct elf_link_hash_entry_mul_list *m_list;
14698 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
14699 m_list = ex9_insn->m_list;
14703 h_list = m_list->h_list;
14708 && (m_list->irel->r_addend
14709 == irel->r_addend))
14714 && ex9_insn->m_list
14715 && ex9_insn->m_list == ex9_insn->next->m_list)
14717 /* sethi multiple entry must be fixed */
14718 nds32_elf_ex9_insert_fix (sec, irel,
14719 h, ex9_insn->order);
14723 h_list = h_list->next;
14725 m_list = m_list->next;
14731 /* Import table: Check the symbol hash table and the
14732 jump target. Only R_NDS32_25_PCREL_RELA now. */
14733 else if (ex9_insn->times == -1
14734 && ELF32_R_TYPE (irel->r_info) == R_NDS32_25_PCREL_RELA)
14736 nds32_elf_get_insn_with_reg (irel, it_insn, &it_insn_with_reg);
14737 if (insn_with_reg == it_insn_with_reg)
14740 bfd_vma relocation;
14742 r_symndx = ELF32_R_SYM (irel->r_info);
14743 if (r_symndx >= symtab_hdr->sh_info)
14745 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
14746 if ((h->root.type == bfd_link_hash_defined
14747 || h->root.type == bfd_link_hash_defweak)
14748 && h->root.u.def.section != NULL
14749 && h->root.u.def.section->output_section != NULL
14750 && h->root.u.def.section->gc_mark == 1
14751 && bfd_is_abs_section (h->root.u.def.section)
14752 && h->root.u.def.value > sec->size)
14754 relocation = h->root.u.def.value +
14755 h->root.u.def.section->output_section->vma +
14756 h->root.u.def.section->output_offset;
14757 relocation += irel->r_addend;
14758 insn = insn_with_reg
14759 | ((relocation >> 1) & 0xffffff);
14760 snprintf (code, sizeof (code), "%08x", insn);
14761 if (strcmp (code, ex9_insn->string) == 0)
14770 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN
14771 || ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END
14772 || ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE)
14774 /* These relocations do not have to relocate contens, so it can
14775 be regard as instruction without relocation. */
14776 if (insn == it_insn && ex9_insn->irel == NULL)
14782 /* Instruction without relocation, we only
14783 have to compare their byte code. */
14784 if (insn == it_insn && ex9_insn->irel == NULL)
14788 /* Insntruction match so replacing the code here. */
14789 if (do_replace == 1)
14791 /* There are two formats of ex9 instruction. */
14792 if (ex9_insn->order < 32)
14793 insn_ex9 = INSN_EX9_IT_2;
14795 insn_ex9 = INSN_EX9_IT_1;
14796 insn16 = insn_ex9 | ex9_insn->order;
14798 /* Insert ex9 instruction. */
14799 nds32_elf_ex9_push_insn (pre_insn16, contents, pre_off,
14800 &relax_blank_list, pre_irel_ptr,
14803 pre_insn16 = insn16;
14807 /* For instuction with relocation do relax. */
14808 irel_ptr = (struct elf_nds32_irel_entry *)
14809 bfd_malloc (sizeof (struct elf_nds32_irel_entry));
14810 irel_ptr->irel = irel;
14811 irel_ptr->next = NULL;
14812 pre_irel_ptr = irel_ptr;
14815 pre_irel_ptr = NULL;
14818 ex9_insn = ex9_insn->next;
14823 /* Insert ex9 instruction. */
14824 nds32_elf_ex9_push_insn (pre_insn16, contents, pre_off,
14825 &relax_blank_list, pre_irel_ptr,
14828 /* Delete the redundant code. */
14829 if (relax_blank_list)
14831 nds32_elf_relax_delete_blanks (abfd, sec, relax_blank_list);
14832 relax_blank_list = NULL;
14835 /* Clear the relocation that is replaced by ex9. */
14838 struct elf_nds32_irel_entry *irel_ptr;
14840 irel_ptr = irel_list;
14841 irel_list = irel_ptr->next;
14842 irel_ptr->irel->r_info =
14843 ELF32_R_INFO (ELF32_R_SYM (irel_ptr->irel->r_info), R_NDS32_TRAN);
14849 /* Initialize ex9 hash table. */
14852 nds32_elf_ex9_init (void)
14854 if (!bfd_hash_table_init_n (&ex9_code_table, nds32_elf_code_hash_newfunc,
14855 sizeof (struct elf_nds32_code_hash_entry),
14858 (*_bfd_error_handler) (_("Linker: cannot init ex9 hash table error \n"));
14864 /* Predict how many bytes will be relaxed with ex9 and ifc. */
14867 nds32_elf_ex9_total_relax (struct bfd_link_info *info)
14869 struct elf_nds32_insn_times_entry *ex9_insn;
14870 struct elf_nds32_insn_times_entry *temp;
14871 int target_optimize;
14872 struct elf_nds32_link_hash_table *table;
14874 if (ex9_insn_head == NULL)
14877 table = nds32_elf_hash_table (info);
14878 target_optimize = table->target_optimize;
14879 ex9_insn = ex9_insn_head;
14882 ex9_relax_size = ex9_insn->times * 2 + ex9_relax_size;
14884 ex9_insn = ex9_insn->next;
14887 ex9_insn_head = NULL;
14889 if ((target_optimize & NDS32_RELAX_JUMP_IFC_ON))
14891 /* Examine ifc reduce size. */
14892 struct elf_nds32_ifc_symbol_entry *ifc_ent = ifc_symbol_head;
14893 struct elf_nds32_ifc_irel_list *irel_ptr = NULL;
14898 if (ifc_ent->enable == 0)
14901 irel_ptr = ifc_ent->irel_head;
14905 irel_ptr = irel_ptr->next;
14909 ifc_ent = ifc_ent->next;
14911 ex9_relax_size += size;
14915 /* Finish ex9 table. */
14918 nds32_elf_ex9_finish (struct bfd_link_info *link_info)
14920 nds32_elf_code_hash_traverse (nds32_elf_examine_insn_times);
14921 nds32_elf_order_insn_times (link_info);
14922 nds32_elf_ex9_total_relax (link_info);
14923 /* Traverse the hash table and count its times. */
14924 nds32_elf_code_hash_traverse (nds32_elf_count_insn_times);
14925 nds32_elf_order_insn_times (link_info);
14926 nds32_elf_ex9_build_itable (link_info);
14929 /* Relocate the entries in ex9 table. */
14932 nds32_elf_ex9_reloc_insn (struct elf_nds32_insn_times_entry *ptr,
14933 struct bfd_link_info *link_info)
14935 Elf_Internal_Sym *isym = NULL;
14936 bfd_vma relocation = -1;
14937 struct elf_link_hash_entry *h;
14939 if (ptr->m_list != NULL)
14941 /* Global symbol. */
14942 h = ptr->m_list->h_list->h;
14943 if ((h->root.type == bfd_link_hash_defined
14944 || h->root.type == bfd_link_hash_defweak)
14945 && h->root.u.def.section != NULL
14946 && h->root.u.def.section->output_section != NULL)
14949 relocation = h->root.u.def.value +
14950 h->root.u.def.section->output_section->vma +
14951 h->root.u.def.section->output_offset;
14952 relocation += ptr->m_list->irel->r_addend;
14957 else if (ptr->sec !=NULL)
14959 /* Local symbol. */
14960 Elf_Internal_Sym sym;
14961 asection *sec = NULL;
14963 asection *isec_ptr = &isec;
14964 Elf_Internal_Rela irel_backup = *(ptr->irel);
14965 asection *sec_backup = ptr->sec;
14966 bfd *abfd = ptr->sec->owner;
14968 if (!nds32_get_local_syms (abfd, sec, &isym))
14970 isym = isym + ELF32_R_SYM (ptr->irel->r_info);
14972 sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
14977 /* The purpose is same as elf_link_input_bfd. */
14978 if (isec_ptr != NULL
14979 && isec_ptr->sec_info_type == SEC_INFO_TYPE_MERGE
14980 && ELF_ST_TYPE (isym->st_info) != STT_SECTION)
14983 _bfd_merged_section_offset (ptr->sec->output_section->owner, &isec_ptr,
14984 elf_section_data (isec_ptr)->sec_info,
14987 relocation = _bfd_elf_rela_local_sym (link_info->output_bfd, &sym,
14988 &ptr->sec, ptr->irel);
14989 if (ptr->irel != NULL)
14990 relocation += ptr->irel->r_addend;
14992 /* Restore origin value since there may be some insntructions that
14993 could not be replaced with ex9.it. */
14994 *(ptr->irel) = irel_backup;
14995 ptr->sec = sec_backup;
15001 /* Import ex9 table and build list. */
15004 nds32_elf_ex9_import_table (struct bfd_link_info *info)
15007 bfd_byte *contents;
15008 unsigned long insn;
15009 FILE *ex9_import_file;
15010 int update_ex9_table;
15011 struct elf_nds32_link_hash_table *table;
15013 table = nds32_elf_hash_table (info);
15014 ex9_import_file = table->ex9_import_file;
15015 rewind (table->ex9_import_file);
15017 contents = bfd_malloc (sizeof (bfd_byte) * 4);
15019 /* Read instructions from the input file and build the list. */
15020 while (!feof (ex9_import_file))
15023 struct elf_nds32_insn_times_entry *ptr;
15026 nread = fread (contents, sizeof (bfd_byte) * 4, 1, ex9_import_file);
15027 /* Ignore the final byte 0x0a. */
15030 insn = bfd_getb32 (contents);
15031 code = bfd_malloc (sizeof (char) * 9);
15032 snprintf (code, 9, "%08lx", insn);
15033 ptr = bfd_malloc (sizeof (struct elf_nds32_insn_times_entry));
15034 ptr->string = code;
15038 ptr->m_list = NULL;
15039 ptr->rel_backup.r_offset = 0;
15040 ptr->rel_backup.r_info = 0;
15041 ptr->rel_backup.r_addend = 0;
15044 nds32_elf_ex9_insert_entry (ptr);
15048 update_ex9_table = table->update_ex9_table;
15049 if (update_ex9_table == 1)
15051 /* It has to consider of sethi need to use multiple page
15052 but it not be done yet. */
15053 nds32_elf_code_hash_traverse (nds32_elf_examine_insn_times);
15054 nds32_elf_order_insn_times (info);
15058 /* Export ex9 table. */
15061 nds32_elf_ex9_export (struct bfd_link_info *info,
15062 bfd_byte *contents, int size)
15064 FILE *ex9_export_file;
15065 struct elf_nds32_link_hash_table *table;
15067 table = nds32_elf_hash_table (info);
15068 ex9_export_file = table->ex9_export_file;
15069 fwrite (contents, sizeof (bfd_byte), size, ex9_export_file);
15070 fclose (ex9_export_file);
15073 /* Adjust relocations of J and JAL in ex9.itable.
15074 Export ex9 table. */
15077 nds32_elf_ex9_reloc_jmp (struct bfd_link_info *link_info)
15079 asection *table_sec = NULL;
15080 struct elf_nds32_insn_times_entry *ex9_insn = ex9_insn_head;
15081 struct elf_nds32_insn_times_entry *temp_ptr, *temp_ptr2;
15083 uint32_t insn, insn_with_reg, source_insn;
15084 bfd_byte *contents = NULL, *source_contents = NULL;
15087 int shift, update_ex9_table, offset = 0;
15088 reloc_howto_type *howto = NULL;
15089 Elf_Internal_Rela rel_backup;
15090 unsigned short insn_ex9;
15091 struct elf_nds32_link_hash_table *table;
15092 FILE *ex9_export_file;
15093 static bfd_boolean done = FALSE;
15100 table = nds32_elf_hash_table (link_info);
15102 table->relax_status |= NDS32_RELAX_EX9_DONE;
15105 update_ex9_table = table->update_ex9_table;
15106 /* Generated ex9.itable exactly. */
15107 if (update_ex9_table == 0)
15109 for (it_abfd = link_info->input_bfds; it_abfd != NULL;
15110 it_abfd = it_abfd->link.next)
15112 table_sec = bfd_get_section_by_name (it_abfd, ".ex9.itable");
15113 if (table_sec != NULL)
15117 if (table_sec != NULL)
15121 output_bfd = table_sec->output_section->owner;
15122 nds32_elf_final_sda_base (output_bfd, link_info, &gp, FALSE);
15123 if (table_sec->size == 0)
15126 if (!nds32_get_section_contents (it_abfd, table_sec, &contents, TRUE))
15135 output_bfd = link_info->input_bfds->sections->output_section->owner;
15136 nds32_elf_final_sda_base (output_bfd, link_info, &gp, FALSE);
15137 contents = bfd_malloc (sizeof (bfd_byte) * 2048);
15140 /* Relocate instruction. */
15143 bfd_vma relocation, min_relocation = 0xffffffff;
15145 insn = strtol (ex9_insn->string, NULL, 16);
15147 if (ex9_insn->m_list != NULL || ex9_insn->sec != NULL)
15149 if (ex9_insn->m_list)
15150 rel_backup = ex9_insn->m_list->rel_backup;
15152 rel_backup = ex9_insn->rel_backup;
15154 nds32_elf_get_insn_with_reg (&rel_backup, insn, &insn_with_reg);
15156 bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE
15157 (rel_backup.r_info));
15158 shift = howto->rightshift;
15159 if (ELF32_R_TYPE (rel_backup.r_info) == R_NDS32_25_PCREL_RELA
15160 || ELF32_R_TYPE (rel_backup.r_info) == R_NDS32_LO12S0_ORI_RELA
15161 || ELF32_R_TYPE (rel_backup.r_info) == R_NDS32_LO12S0_RELA
15162 || ELF32_R_TYPE (rel_backup.r_info) == R_NDS32_LO12S1_RELA
15163 || ELF32_R_TYPE (rel_backup.r_info) == R_NDS32_LO12S2_RELA)
15165 relocation = nds32_elf_ex9_reloc_insn (ex9_insn, link_info);
15167 insn_with_reg | ((relocation >> shift) &
15168 nds32_elf_irel_mask (&rel_backup));
15169 bfd_putb32 (insn, contents + (ex9_insn->order) * 4);
15171 else if ((ELF32_R_TYPE (rel_backup.r_info) >= R_NDS32_SDA15S3
15172 && ELF32_R_TYPE (rel_backup.r_info) <= R_NDS32_SDA15S0)
15173 || (ELF32_R_TYPE (rel_backup.r_info) >= R_NDS32_SDA15S3_RELA
15174 && ELF32_R_TYPE (rel_backup.r_info) <= R_NDS32_SDA15S0_RELA)
15175 || (ELF32_R_TYPE (rel_backup.r_info) >= R_NDS32_SDA12S2_DP_RELA
15176 && ELF32_R_TYPE (rel_backup.r_info) <= R_NDS32_SDA12S2_SP_RELA)
15177 || (ELF32_R_TYPE (rel_backup.r_info) >= R_NDS32_SDA16S3_RELA
15178 && ELF32_R_TYPE (rel_backup.r_info) <= R_NDS32_SDA19S0_RELA))
15180 relocation = nds32_elf_ex9_reloc_insn (ex9_insn, link_info);
15182 insn_with_reg | (((relocation - gp) >> shift) &
15183 nds32_elf_irel_mask (&rel_backup));
15184 bfd_putb32 (insn, contents + (ex9_insn->order) * 4);
15186 else if (ELF32_R_TYPE (rel_backup.r_info) == R_NDS32_HI20_RELA)
15188 /* Sethi may be multiple entry for one insn. */
15189 if (ex9_insn->next && ex9_insn->m_list
15190 && ex9_insn->m_list == ex9_insn->next->m_list)
15192 struct elf_link_hash_entry_mul_list *m_list;
15193 struct elf_nds32_ex9_refix *fix_ptr;
15194 struct elf_link_hash_entry *h;
15196 temp_ptr = ex9_insn;
15197 temp_ptr2 = ex9_insn;
15198 m_list = ex9_insn->m_list;
15201 h = m_list->h_list->h;
15202 relocation = h->root.u.def.value +
15203 h->root.u.def.section->output_section->vma +
15204 h->root.u.def.section->output_offset;
15205 relocation += m_list->irel->r_addend;
15207 if (relocation < min_relocation)
15208 min_relocation = relocation;
15209 m_list = m_list->next;
15211 relocation = min_relocation;
15213 /* Put insntruction into ex9 table. */
15214 insn = insn_with_reg
15215 | ((relocation >> shift) & nds32_elf_irel_mask (&rel_backup));
15216 bfd_putb32 (insn, contents + (ex9_insn->order) * 4);
15217 relocation = relocation + 0x1000; /* hi20 */
15219 while (ex9_insn->next && ex9_insn->m_list
15220 && ex9_insn->m_list == ex9_insn->next->m_list)
15222 /* Multiple sethi. */
15223 ex9_insn = ex9_insn->next;
15226 insn_with_reg | ((relocation >> shift) &
15227 nds32_elf_irel_mask (&rel_backup));
15228 bfd_putb32 (insn, contents + (ex9_insn->order) * 4);
15229 relocation = relocation + 0x1000; /* hi20 */
15232 fix_ptr = ex9_refix_head;
15235 /* Fix ex9 insn. */
15236 /* temp_ptr2 points to the head of multiple sethi. */
15237 temp_ptr = temp_ptr2;
15238 while (fix_ptr->order != temp_ptr->order && fix_ptr->next)
15240 fix_ptr = fix_ptr->next;
15242 if (fix_ptr->order != temp_ptr->order)
15245 /* Set source insn. */
15247 fix_ptr->h->root.u.def.value +
15248 fix_ptr->h->root.u.def.section->output_section->vma +
15249 fix_ptr->h->root.u.def.section->output_offset;
15250 relocation += fix_ptr->irel->r_addend;
15251 /* sethi imm is imm20s. */
15252 source_insn = insn_with_reg | ((relocation >> shift) & 0xfffff);
15256 /* Match entry and source code. */
15257 insn = bfd_getb32 (contents + (temp_ptr->order) * 4 + offset);
15258 if (insn == source_insn)
15260 /* Fix the ex9 insn. */
15261 if (temp_ptr->order != fix_ptr->order)
15263 if (!nds32_get_section_contents
15264 (fix_ptr->sec->owner, fix_ptr->sec,
15265 &source_contents, TRUE))
15266 (*_bfd_error_handler)
15267 (_("Linker: error cannot fixed ex9 relocation \n"));
15268 if (temp_ptr->order < 32)
15269 insn_ex9 = INSN_EX9_IT_2;
15271 insn_ex9 = INSN_EX9_IT_1;
15272 insn_ex9 = insn_ex9 | temp_ptr->order;
15273 bfd_putb16 (insn_ex9, source_contents + fix_ptr->irel->r_offset);
15279 if (!temp_ptr->next || temp_ptr->m_list != temp_ptr->next->m_list)
15280 (*_bfd_error_handler)
15281 (_("Linker: error cannot fixed ex9 relocation \n"));
15283 temp_ptr = temp_ptr->next;
15286 fix_ptr = fix_ptr->next;
15291 relocation = nds32_elf_ex9_reloc_insn (ex9_insn, link_info);
15292 insn = insn_with_reg
15293 | ((relocation >> shift) & nds32_elf_irel_mask (&rel_backup));
15294 bfd_putb32 (insn, contents + (ex9_insn->order) * 4);
15300 /* Insn without relocation does not have to be fixed
15301 if need to update export table. */
15302 if (update_ex9_table == 1)
15303 bfd_putb32 (insn, contents + (ex9_insn->order) * 4);
15305 ex9_insn = ex9_insn->next;
15309 ex9_export_file = table->ex9_export_file;
15310 if (ex9_export_file != NULL)
15311 nds32_elf_ex9_export (link_info, contents, table_sec->size);
15312 else if (update_ex9_table == 1)
15314 table->ex9_export_file = table->ex9_import_file;
15315 rewind (table->ex9_export_file);
15316 nds32_elf_ex9_export (link_info, contents, size);
15320 /* Generate ex9 hash table. */
15323 nds32_elf_ex9_build_hash_table (bfd *abfd, asection *sec,
15324 struct bfd_link_info *link_info)
15326 Elf_Internal_Rela *internal_relocs;
15327 Elf_Internal_Rela *irelend;
15328 Elf_Internal_Rela *irel;
15329 Elf_Internal_Rela *jrel;
15330 Elf_Internal_Rela rel_backup;
15331 Elf_Internal_Shdr *symtab_hdr;
15332 Elf_Internal_Sym *isym = NULL;
15334 struct elf_link_hash_entry **sym_hashes;
15335 bfd_byte *contents = NULL;
15337 unsigned long r_symndx;
15338 uint32_t insn, insn_with_reg;
15339 struct elf_link_hash_entry *h;
15340 int data_flag, shift, align;
15341 bfd_vma relocation;
15342 /* Suppress ex9 if `.no_relax ex9' or inner loop. */
15343 reloc_howto_type *howto = NULL;
15345 sym_hashes = elf_sym_hashes (abfd);
15346 /* Load section instructions, relocations, and symbol table. */
15347 if (!nds32_get_section_contents (abfd, sec, &contents, TRUE))
15350 internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL,
15351 TRUE /* keep_memory */);
15352 irelend = internal_relocs + sec->reloc_count;
15353 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
15354 if (!nds32_get_local_syms (abfd, sec, &isym))
15357 /* Check the object if enable ex9. */
15358 irel = find_relocs_at_address (internal_relocs, internal_relocs, irelend,
15359 R_NDS32_RELAX_ENTRY);
15361 /* Check this section trigger ex9 relaxation. */
15364 || ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_ENTRY
15365 || (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY
15366 && !(irel->r_addend & R_NDS32_RELAX_ENTRY_EX9_FLAG)))
15369 irel = internal_relocs;
15371 /* Push each insn into hash table. */
15372 while (off < sec->size)
15375 struct elf_nds32_code_hash_entry *entry;
15377 while (irel != NULL && irel < irelend && irel->r_offset < off)
15380 data_flag = nds32_elf_ex9_relocation_check (link_info, &irel, irelend,
15381 NULL, sec, &off, contents);
15382 if (data_flag & DATA_EXIST)
15384 /* We save the move offset in the highest byte. */
15385 off += (data_flag >> 24);
15389 if (*(contents + off) & 0x80)
15398 rel_backup.r_info = 0;
15399 rel_backup.r_offset = 0;
15400 rel_backup.r_addend = 0;
15401 /* Load the instruction and its opcode with register for comparing. */
15402 insn = bfd_getb32 (contents + off);
15404 if (irel != NULL && irel < irelend && irel->r_offset == off)
15406 nds32_elf_get_insn_with_reg (irel, insn, &insn_with_reg);
15407 howto = bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel->r_info));
15408 shift = howto->rightshift;
15409 align = (1 << shift) - 1;
15410 if (ELF32_R_TYPE (irel->r_info) == R_NDS32_25_PCREL_RELA
15411 || ELF32_R_TYPE (irel->r_info) == R_NDS32_HI20_RELA
15412 || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S0_ORI_RELA
15413 || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S0_RELA
15414 || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S1_RELA
15415 || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_RELA
15416 ||(ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA15S3
15417 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA15S0)
15418 || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA15S3_RELA
15419 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA15S0_RELA)
15420 || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA12S2_DP_RELA
15421 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA12S2_SP_RELA)
15422 || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA16S3_RELA
15423 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA19S0_RELA))
15425 r_symndx = ELF32_R_SYM (irel->r_info);
15427 rel_backup = *irel;
15428 if (r_symndx < symtab_hdr->sh_info)
15430 /* Local symbol. */
15431 int shndx = isym[r_symndx].st_shndx;
15433 bfd_vma st_value = (isym + r_symndx)->st_value;
15434 isec = elf_elfsections (abfd)[shndx]->bfd_section;
15435 relocation = (isec->output_section->vma + isec->output_offset
15436 + st_value + irel->r_addend);
15440 /* External symbol. */
15441 bfd_boolean warned ATTRIBUTE_UNUSED;
15442 bfd_boolean ignored ATTRIBUTE_UNUSED;
15443 bfd_boolean unresolved_reloc ATTRIBUTE_UNUSED;
15446 /* Maybe there is a better way to get h and relocation */
15447 RELOC_FOR_GLOBAL_SYMBOL (link_info, abfd, sec, irel,
15448 r_symndx, symtab_hdr, sym_hashes,
15449 h, sym_sec, relocation,
15450 unresolved_reloc, warned, ignored);
15451 relocation += irel->r_addend;
15452 if ((h->root.type != bfd_link_hash_defined
15453 && h->root.type != bfd_link_hash_defweak)
15454 || strcmp (h->root.root.string, "_FP_BASE_") == 0)
15461 /* Check for gp relative instruction alignment. */
15462 if ((ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA15S3
15463 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA15S0)
15464 || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA15S3_RELA
15465 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA15S0_RELA)
15466 || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA12S2_DP_RELA
15467 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA12S2_SP_RELA)
15468 || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA16S3_RELA
15469 && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA19S0_RELA))
15472 bfd *output_bfd = sec->output_section->owner;
15473 bfd_reloc_status_type r;
15475 /* If the symbol is in the abs section, the out_bfd will be null.
15476 This happens when the relocation has a symbol@GOTOFF. */
15477 r = nds32_elf_final_sda_base (output_bfd, link_info, &gp, FALSE);
15478 if (r != bfd_reloc_ok)
15486 /* Make sure alignment is correct. */
15487 if (relocation & align)
15489 /* Incorrect alignment. */
15490 (*_bfd_error_handler)
15491 (_("%s: warning: unaligned small data access. "
15492 "For entry: {%d, %d, %d}, addr = 0x%x, align = 0x%x."),
15493 bfd_get_filename (abfd), irel->r_offset,
15494 irel->r_info, irel->r_addend, relocation, align);
15500 insn = insn_with_reg
15501 | ((relocation >> shift) & nds32_elf_irel_mask (irel));
15503 else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN
15504 || ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END
15505 || ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE)
15507 /* These relocations do not have to relocate contens, so it can
15508 be regard as instruction without relocation. */
15517 snprintf (code, sizeof (code), "%08x", insn);
15519 entry = (struct elf_nds32_code_hash_entry*)
15520 bfd_hash_lookup (&ex9_code_table, code, TRUE, TRUE);
15523 (*_bfd_error_handler)
15524 (_("%P%F: failed creating ex9.it %s hash table: %E\n"), code);
15529 if (h->root.type == bfd_link_hash_undefined)
15531 /* Global symbol. */
15532 /* In order to do sethi with different symbol but same value. */
15533 if (entry->m_list == NULL)
15535 struct elf_link_hash_entry_mul_list *m_list_new;
15536 struct elf_link_hash_entry_list *h_list_new;
15538 m_list_new = (struct elf_link_hash_entry_mul_list *)
15539 bfd_malloc (sizeof (struct elf_link_hash_entry_mul_list));
15540 h_list_new = (struct elf_link_hash_entry_list *)
15541 bfd_malloc (sizeof (struct elf_link_hash_entry_list));
15542 entry->m_list = m_list_new;
15543 m_list_new->h_list = h_list_new;
15544 m_list_new->rel_backup = rel_backup;
15545 m_list_new->times = 1;
15546 m_list_new->irel = jrel;
15547 m_list_new->next = NULL;
15549 h_list_new->next = NULL;
15553 struct elf_link_hash_entry_mul_list *m_list = entry->m_list;
15554 struct elf_link_hash_entry_list *h_list;
15558 /* Build the different symbols that point to the same address. */
15559 h_list = m_list->h_list;
15560 if (h_list->h->root.u.def.value == h->root.u.def.value
15561 && h_list->h->root.u.def.section->output_section->vma
15562 == h->root.u.def.section->output_section->vma
15563 && h_list->h->root.u.def.section->output_offset
15564 == h->root.u.def.section->output_offset
15565 && m_list->rel_backup.r_addend == rel_backup.r_addend)
15568 m_list->irel = jrel;
15569 while (h_list->h != h && h_list->next)
15570 h_list = h_list->next;
15571 if (h_list->h != h)
15573 struct elf_link_hash_entry_list *h_list_new;
15575 h_list_new = (struct elf_link_hash_entry_list *)
15576 bfd_malloc (sizeof (struct elf_link_hash_entry_list));
15577 h_list->next = h_list_new;
15579 h_list_new->next = NULL;
15583 /* The sethi case may have different address but the
15584 hi20 is the same. */
15585 else if (ELF32_R_TYPE (jrel->r_info) == R_NDS32_HI20_RELA
15586 && m_list->next == NULL)
15588 struct elf_link_hash_entry_mul_list *m_list_new;
15589 struct elf_link_hash_entry_list *h_list_new;
15591 m_list_new = (struct elf_link_hash_entry_mul_list *)
15592 bfd_malloc (sizeof (struct elf_link_hash_entry_mul_list));
15593 h_list_new = (struct elf_link_hash_entry_list *)
15594 bfd_malloc (sizeof (struct elf_link_hash_entry_list));
15595 m_list->next = m_list_new;
15596 m_list_new->h_list = h_list_new;
15597 m_list_new->rel_backup = rel_backup;
15598 m_list_new->times = 1;
15599 m_list_new->irel = jrel;
15600 m_list_new->next = NULL;
15602 h_list_new->next = NULL;
15605 m_list = m_list->next;
15616 /* Local symbol and insn without relocation*/
15618 entry->rel_backup = rel_backup;
15621 /* Use in sethi insn with constant and global symbol in same format. */
15623 entry->const_insn = 1;
15625 entry->irel = jrel;
15633 /* Set the _ITB_BASE, and point it to ex9 table. */
15636 nds32_elf_ex9_itb_base (struct bfd_link_info *link_info)
15640 bfd *output_bfd = NULL;
15641 struct bfd_link_hash_entry *bh = NULL;
15643 if (is_ITB_BASE_set == 1)
15646 is_ITB_BASE_set = 1;
15648 bh = bfd_link_hash_lookup (link_info->hash, "_ITB_BASE_", FALSE, FALSE, TRUE);
15650 if (bh && (bh->type == bfd_link_hash_defined
15651 || bh->type == bfd_link_hash_defweak))
15654 for (abfd = link_info->input_bfds; abfd != NULL;
15655 abfd = abfd->link.next)
15657 sec = bfd_get_section_by_name (abfd, ".ex9.itable");
15660 output_bfd = sec->output_section->owner;
15664 if (output_bfd == NULL)
15666 output_bfd = link_info->output_bfd;
15667 if (output_bfd->sections == NULL)
15670 sec = bfd_abs_section_ptr;
15672 bh = bfd_link_hash_lookup (link_info->hash, "_ITB_BASE_",
15673 FALSE, FALSE, TRUE);
15674 return (_bfd_generic_link_add_one_symbol
15675 (link_info, output_bfd, "_ITB_BASE_",
15676 BSF_GLOBAL | BSF_WEAK, sec, 0,
15677 (const char *) NULL, FALSE, get_elf_backend_data
15678 (output_bfd)->collect, &bh));
15682 #define ELF_ARCH bfd_arch_nds32
15683 #define ELF_MACHINE_CODE EM_NDS32
15684 #define ELF_MAXPAGESIZE 0x1000
15685 #define ELF_TARGET_ID NDS32_ELF_DATA
15687 #define TARGET_BIG_SYM nds32_elf32_be_vec
15688 #define TARGET_BIG_NAME "elf32-nds32be"
15689 #define TARGET_LITTLE_SYM nds32_elf32_le_vec
15690 #define TARGET_LITTLE_NAME "elf32-nds32le"
15692 #define elf_info_to_howto nds32_info_to_howto
15693 #define elf_info_to_howto_rel nds32_info_to_howto_rel
15695 #define bfd_elf32_bfd_link_hash_table_create nds32_elf_link_hash_table_create
15696 #define bfd_elf32_bfd_merge_private_bfd_data nds32_elf_merge_private_bfd_data
15697 #define bfd_elf32_bfd_print_private_bfd_data nds32_elf_print_private_bfd_data
15698 #define bfd_elf32_bfd_relax_section nds32_elf_relax_section
15699 #define bfd_elf32_bfd_set_private_flags nds32_elf_set_private_flags
15701 #define bfd_elf32_mkobject nds32_elf_mkobject
15702 #define elf_backend_action_discarded nds32_elf_action_discarded
15703 #define elf_backend_add_symbol_hook nds32_elf_add_symbol_hook
15704 #define elf_backend_check_relocs nds32_elf_check_relocs
15705 #define elf_backend_adjust_dynamic_symbol nds32_elf_adjust_dynamic_symbol
15706 #define elf_backend_create_dynamic_sections nds32_elf_create_dynamic_sections
15707 #define elf_backend_finish_dynamic_sections nds32_elf_finish_dynamic_sections
15708 #define elf_backend_finish_dynamic_symbol nds32_elf_finish_dynamic_symbol
15709 #define elf_backend_size_dynamic_sections nds32_elf_size_dynamic_sections
15710 #define elf_backend_relocate_section nds32_elf_relocate_section
15711 #define elf_backend_gc_mark_hook nds32_elf_gc_mark_hook
15712 #define elf_backend_gc_sweep_hook nds32_elf_gc_sweep_hook
15713 #define elf_backend_grok_prstatus nds32_elf_grok_prstatus
15714 #define elf_backend_grok_psinfo nds32_elf_grok_psinfo
15715 #define elf_backend_reloc_type_class nds32_elf_reloc_type_class
15716 #define elf_backend_copy_indirect_symbol nds32_elf_copy_indirect_symbol
15717 #define elf_backend_link_output_symbol_hook nds32_elf_output_symbol_hook
15718 #define elf_backend_output_arch_syms nds32_elf_output_arch_syms
15719 #define elf_backend_object_p nds32_elf_object_p
15720 #define elf_backend_final_write_processing nds32_elf_final_write_processing
15721 #define elf_backend_special_sections nds32_elf_special_sections
15722 #define bfd_elf32_bfd_get_relocated_section_contents \
15723 nds32_elf_get_relocated_section_contents
15725 #define elf_backend_can_gc_sections 1
15726 #define elf_backend_can_refcount 1
15727 #define elf_backend_want_got_plt 1
15728 #define elf_backend_plt_readonly 1
15729 #define elf_backend_want_plt_sym 0
15730 #define elf_backend_got_header_size 12
15731 #define elf_backend_may_use_rel_p 1
15732 #define elf_backend_default_use_rela_p 1
15733 #define elf_backend_may_use_rela_p 1
15735 #include "elf32-target.h"
15737 #undef ELF_MAXPAGESIZE
15738 #define ELF_MAXPAGESIZE 0x2000
15740 #undef TARGET_BIG_SYM
15741 #define TARGET_BIG_SYM nds32_elf32_linux_be_vec
15742 #undef TARGET_BIG_NAME
15743 #define TARGET_BIG_NAME "elf32-nds32be-linux"
15744 #undef TARGET_LITTLE_SYM
15745 #define TARGET_LITTLE_SYM nds32_elf32_linux_le_vec
15746 #undef TARGET_LITTLE_NAME
15747 #define TARGET_LITTLE_NAME "elf32-nds32le-linux"
15749 #define elf32_bed elf32_nds32_lin_bed
15751 #include "elf32-target.h"