1 /* PowerPC64-specific support for 64-bit ELF.
2 Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
3 Free Software Foundation, Inc.
4 Written by Linus Nordberg, Swox AB <info@swox.com>,
5 based on elf32-ppc.c by Ian Lance Taylor.
6 Largely rewritten by Alan Modra <amodra@bigpond.net.au>
8 This file is part of BFD, the Binary File Descriptor library.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License along
21 with this program; if not, write to the Free Software Foundation, Inc.,
22 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
25 /* The 64-bit PowerPC ELF ABI may be found at
26 http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and
27 http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */
35 #include "elf/ppc64.h"
36 #include "elf64-ppc.h"
38 static bfd_reloc_status_type ppc64_elf_ha_reloc
39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
40 static bfd_reloc_status_type ppc64_elf_branch_reloc
41 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
42 static bfd_reloc_status_type ppc64_elf_brtaken_reloc
43 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
44 static bfd_reloc_status_type ppc64_elf_sectoff_reloc
45 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
46 static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
47 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
48 static bfd_reloc_status_type ppc64_elf_toc_reloc
49 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
50 static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
51 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
52 static bfd_reloc_status_type ppc64_elf_toc64_reloc
53 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
54 static bfd_reloc_status_type ppc64_elf_unhandled_reloc
55 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
56 static bfd_vma opd_entry_value
57 (asection *, bfd_vma, asection **, bfd_vma *);
59 #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
60 #define TARGET_LITTLE_NAME "elf64-powerpcle"
61 #define TARGET_BIG_SYM bfd_elf64_powerpc_vec
62 #define TARGET_BIG_NAME "elf64-powerpc"
63 #define ELF_ARCH bfd_arch_powerpc
64 #define ELF_MACHINE_CODE EM_PPC64
65 #define ELF_MAXPAGESIZE 0x10000
66 #define ELF_COMMONPAGESIZE 0x1000
67 #define elf_info_to_howto ppc64_elf_info_to_howto
69 #define elf_backend_want_got_sym 0
70 #define elf_backend_want_plt_sym 0
71 #define elf_backend_plt_alignment 3
72 #define elf_backend_plt_not_loaded 1
73 #define elf_backend_got_header_size 8
74 #define elf_backend_can_gc_sections 1
75 #define elf_backend_can_refcount 1
76 #define elf_backend_rela_normal 1
77 #define elf_backend_default_execstack 0
79 #define bfd_elf64_mkobject ppc64_elf_mkobject
80 #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
81 #define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup
82 #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
83 #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
84 #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
85 #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
86 #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab
88 #define elf_backend_object_p ppc64_elf_object_p
89 #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
90 #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
91 #define elf_backend_write_core_note ppc64_elf_write_core_note
92 #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
93 #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
94 #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
95 #define elf_backend_check_directives ppc64_elf_check_directives
96 #define elf_backend_as_needed_cleanup ppc64_elf_as_needed_cleanup
97 #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
98 #define elf_backend_check_relocs ppc64_elf_check_relocs
99 #define elf_backend_gc_keep ppc64_elf_gc_keep
100 #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref
101 #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
102 #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
103 #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
104 #define elf_backend_hide_symbol ppc64_elf_hide_symbol
105 #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
106 #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
107 #define elf_backend_init_index_section _bfd_elf_init_2_index_sections
108 #define elf_backend_action_discarded ppc64_elf_action_discarded
109 #define elf_backend_relocate_section ppc64_elf_relocate_section
110 #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
111 #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
112 #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
113 #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
114 #define elf_backend_special_sections ppc64_elf_special_sections
116 /* The name of the dynamic interpreter. This is put in the .interp
118 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
120 /* The size in bytes of an entry in the procedure linkage table. */
121 #define PLT_ENTRY_SIZE 24
123 /* The initial size of the plt reserved for the dynamic linker. */
124 #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
126 /* TOC base pointers offset from start of TOC. */
127 #define TOC_BASE_OFF 0x8000
129 /* Offset of tp and dtp pointers from start of TLS block. */
130 #define TP_OFFSET 0x7000
131 #define DTP_OFFSET 0x8000
133 /* .plt call stub instructions. The normal stub is like this, but
134 sometimes the .plt entry crosses a 64k boundary and we need to
135 insert an addi to adjust r12. */
136 #define PLT_CALL_STUB_SIZE (7*4)
137 #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
138 #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
139 #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
140 #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
141 #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
142 /* ld %r11,xxx+16@l(%r12) */
143 #define BCTR 0x4e800420 /* bctr */
146 #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,off@ha */
147 #define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,off@l */
148 #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
149 #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
151 #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */
152 #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */
154 #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
156 /* glink call stub instructions. We enter with the index in R0. */
157 #define GLINK_CALL_STUB_SIZE (16*4)
161 #define MFLR_R12 0x7d8802a6 /* mflr %12 */
162 #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */
164 #define MFLR_R11 0x7d6802a6 /* mflr %11 */
165 #define LD_R2_M16R11 0xe84bfff0 /* ld %2,(0b-1b)(%11) */
166 #define MTLR_R12 0x7d8803a6 /* mtlr %12 */
167 #define ADD_R12_R2_R11 0x7d825a14 /* add %12,%2,%11 */
175 #define NOP 0x60000000
177 /* Some other nops. */
178 #define CROR_151515 0x4def7b82
179 #define CROR_313131 0x4ffffb82
181 /* .glink entries for the first 32k functions are two instructions. */
182 #define LI_R0_0 0x38000000 /* li %r0,0 */
183 #define B_DOT 0x48000000 /* b . */
185 /* After that, we need two instructions to load the index, followed by
187 #define LIS_R0_0 0x3c000000 /* lis %r0,0 */
188 #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
190 /* Instructions used by the save and restore reg functions. */
191 #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */
192 #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */
193 #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */
194 #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */
195 #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
196 #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
197 #define LI_R12_0 0x39800000 /* li %r12,0 */
198 #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */
199 #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */
200 #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
201 #define BLR 0x4e800020 /* blr */
203 /* Since .opd is an array of descriptors and each entry will end up
204 with identical R_PPC64_RELATIVE relocs, there is really no need to
205 propagate .opd relocs; The dynamic linker should be taught to
206 relocate .opd without reloc entries. */
207 #ifndef NO_OPD_RELOCS
208 #define NO_OPD_RELOCS 0
211 #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
213 /* Relocation HOWTO's. */
214 static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
216 static reloc_howto_type ppc64_elf_howto_raw[] = {
217 /* This reloc does nothing. */
218 HOWTO (R_PPC64_NONE, /* type */
220 2, /* size (0 = byte, 1 = short, 2 = long) */
222 FALSE, /* pc_relative */
224 complain_overflow_dont, /* complain_on_overflow */
225 bfd_elf_generic_reloc, /* special_function */
226 "R_PPC64_NONE", /* name */
227 FALSE, /* partial_inplace */
230 FALSE), /* pcrel_offset */
232 /* A standard 32 bit relocation. */
233 HOWTO (R_PPC64_ADDR32, /* type */
235 2, /* size (0 = byte, 1 = short, 2 = long) */
237 FALSE, /* pc_relative */
239 complain_overflow_bitfield, /* complain_on_overflow */
240 bfd_elf_generic_reloc, /* special_function */
241 "R_PPC64_ADDR32", /* name */
242 FALSE, /* partial_inplace */
244 0xffffffff, /* dst_mask */
245 FALSE), /* pcrel_offset */
247 /* An absolute 26 bit branch; the lower two bits must be zero.
248 FIXME: we don't check that, we just clear them. */
249 HOWTO (R_PPC64_ADDR24, /* type */
251 2, /* size (0 = byte, 1 = short, 2 = long) */
253 FALSE, /* pc_relative */
255 complain_overflow_bitfield, /* complain_on_overflow */
256 bfd_elf_generic_reloc, /* special_function */
257 "R_PPC64_ADDR24", /* name */
258 FALSE, /* partial_inplace */
260 0x03fffffc, /* dst_mask */
261 FALSE), /* pcrel_offset */
263 /* A standard 16 bit relocation. */
264 HOWTO (R_PPC64_ADDR16, /* type */
266 1, /* size (0 = byte, 1 = short, 2 = long) */
268 FALSE, /* pc_relative */
270 complain_overflow_bitfield, /* complain_on_overflow */
271 bfd_elf_generic_reloc, /* special_function */
272 "R_PPC64_ADDR16", /* name */
273 FALSE, /* partial_inplace */
275 0xffff, /* dst_mask */
276 FALSE), /* pcrel_offset */
278 /* A 16 bit relocation without overflow. */
279 HOWTO (R_PPC64_ADDR16_LO, /* type */
281 1, /* size (0 = byte, 1 = short, 2 = long) */
283 FALSE, /* pc_relative */
285 complain_overflow_dont,/* complain_on_overflow */
286 bfd_elf_generic_reloc, /* special_function */
287 "R_PPC64_ADDR16_LO", /* name */
288 FALSE, /* partial_inplace */
290 0xffff, /* dst_mask */
291 FALSE), /* pcrel_offset */
293 /* Bits 16-31 of an address. */
294 HOWTO (R_PPC64_ADDR16_HI, /* type */
296 1, /* size (0 = byte, 1 = short, 2 = long) */
298 FALSE, /* pc_relative */
300 complain_overflow_dont, /* complain_on_overflow */
301 bfd_elf_generic_reloc, /* special_function */
302 "R_PPC64_ADDR16_HI", /* name */
303 FALSE, /* partial_inplace */
305 0xffff, /* dst_mask */
306 FALSE), /* pcrel_offset */
308 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
309 bits, treated as a signed number, is negative. */
310 HOWTO (R_PPC64_ADDR16_HA, /* type */
312 1, /* size (0 = byte, 1 = short, 2 = long) */
314 FALSE, /* pc_relative */
316 complain_overflow_dont, /* complain_on_overflow */
317 ppc64_elf_ha_reloc, /* special_function */
318 "R_PPC64_ADDR16_HA", /* name */
319 FALSE, /* partial_inplace */
321 0xffff, /* dst_mask */
322 FALSE), /* pcrel_offset */
324 /* An absolute 16 bit branch; the lower two bits must be zero.
325 FIXME: we don't check that, we just clear them. */
326 HOWTO (R_PPC64_ADDR14, /* type */
328 2, /* size (0 = byte, 1 = short, 2 = long) */
330 FALSE, /* pc_relative */
332 complain_overflow_bitfield, /* complain_on_overflow */
333 ppc64_elf_branch_reloc, /* special_function */
334 "R_PPC64_ADDR14", /* name */
335 FALSE, /* partial_inplace */
337 0x0000fffc, /* dst_mask */
338 FALSE), /* pcrel_offset */
340 /* An absolute 16 bit branch, for which bit 10 should be set to
341 indicate that the branch is expected to be taken. The lower two
342 bits must be zero. */
343 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
345 2, /* size (0 = byte, 1 = short, 2 = long) */
347 FALSE, /* pc_relative */
349 complain_overflow_bitfield, /* complain_on_overflow */
350 ppc64_elf_brtaken_reloc, /* special_function */
351 "R_PPC64_ADDR14_BRTAKEN",/* name */
352 FALSE, /* partial_inplace */
354 0x0000fffc, /* dst_mask */
355 FALSE), /* pcrel_offset */
357 /* An absolute 16 bit branch, for which bit 10 should be set to
358 indicate that the branch is not expected to be taken. The lower
359 two bits must be zero. */
360 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
362 2, /* size (0 = byte, 1 = short, 2 = long) */
364 FALSE, /* pc_relative */
366 complain_overflow_bitfield, /* complain_on_overflow */
367 ppc64_elf_brtaken_reloc, /* special_function */
368 "R_PPC64_ADDR14_BRNTAKEN",/* name */
369 FALSE, /* partial_inplace */
371 0x0000fffc, /* dst_mask */
372 FALSE), /* pcrel_offset */
374 /* A relative 26 bit branch; the lower two bits must be zero. */
375 HOWTO (R_PPC64_REL24, /* type */
377 2, /* size (0 = byte, 1 = short, 2 = long) */
379 TRUE, /* pc_relative */
381 complain_overflow_signed, /* complain_on_overflow */
382 ppc64_elf_branch_reloc, /* special_function */
383 "R_PPC64_REL24", /* name */
384 FALSE, /* partial_inplace */
386 0x03fffffc, /* dst_mask */
387 TRUE), /* pcrel_offset */
389 /* A relative 16 bit branch; the lower two bits must be zero. */
390 HOWTO (R_PPC64_REL14, /* type */
392 2, /* size (0 = byte, 1 = short, 2 = long) */
394 TRUE, /* pc_relative */
396 complain_overflow_signed, /* complain_on_overflow */
397 ppc64_elf_branch_reloc, /* special_function */
398 "R_PPC64_REL14", /* name */
399 FALSE, /* partial_inplace */
401 0x0000fffc, /* dst_mask */
402 TRUE), /* pcrel_offset */
404 /* A relative 16 bit branch. Bit 10 should be set to indicate that
405 the branch is expected to be taken. The lower two bits must be
407 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
409 2, /* size (0 = byte, 1 = short, 2 = long) */
411 TRUE, /* pc_relative */
413 complain_overflow_signed, /* complain_on_overflow */
414 ppc64_elf_brtaken_reloc, /* special_function */
415 "R_PPC64_REL14_BRTAKEN", /* name */
416 FALSE, /* partial_inplace */
418 0x0000fffc, /* dst_mask */
419 TRUE), /* pcrel_offset */
421 /* A relative 16 bit branch. Bit 10 should be set to indicate that
422 the branch is not expected to be taken. The lower two bits must
424 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
426 2, /* size (0 = byte, 1 = short, 2 = long) */
428 TRUE, /* pc_relative */
430 complain_overflow_signed, /* complain_on_overflow */
431 ppc64_elf_brtaken_reloc, /* special_function */
432 "R_PPC64_REL14_BRNTAKEN",/* name */
433 FALSE, /* partial_inplace */
435 0x0000fffc, /* dst_mask */
436 TRUE), /* pcrel_offset */
438 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
440 HOWTO (R_PPC64_GOT16, /* type */
442 1, /* size (0 = byte, 1 = short, 2 = long) */
444 FALSE, /* pc_relative */
446 complain_overflow_signed, /* complain_on_overflow */
447 ppc64_elf_unhandled_reloc, /* special_function */
448 "R_PPC64_GOT16", /* name */
449 FALSE, /* partial_inplace */
451 0xffff, /* dst_mask */
452 FALSE), /* pcrel_offset */
454 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
456 HOWTO (R_PPC64_GOT16_LO, /* type */
458 1, /* size (0 = byte, 1 = short, 2 = long) */
460 FALSE, /* pc_relative */
462 complain_overflow_dont, /* complain_on_overflow */
463 ppc64_elf_unhandled_reloc, /* special_function */
464 "R_PPC64_GOT16_LO", /* name */
465 FALSE, /* partial_inplace */
467 0xffff, /* dst_mask */
468 FALSE), /* pcrel_offset */
470 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
472 HOWTO (R_PPC64_GOT16_HI, /* type */
474 1, /* size (0 = byte, 1 = short, 2 = long) */
476 FALSE, /* pc_relative */
478 complain_overflow_dont,/* complain_on_overflow */
479 ppc64_elf_unhandled_reloc, /* special_function */
480 "R_PPC64_GOT16_HI", /* name */
481 FALSE, /* partial_inplace */
483 0xffff, /* dst_mask */
484 FALSE), /* pcrel_offset */
486 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
488 HOWTO (R_PPC64_GOT16_HA, /* type */
490 1, /* size (0 = byte, 1 = short, 2 = long) */
492 FALSE, /* pc_relative */
494 complain_overflow_dont,/* complain_on_overflow */
495 ppc64_elf_unhandled_reloc, /* special_function */
496 "R_PPC64_GOT16_HA", /* name */
497 FALSE, /* partial_inplace */
499 0xffff, /* dst_mask */
500 FALSE), /* pcrel_offset */
502 /* This is used only by the dynamic linker. The symbol should exist
503 both in the object being run and in some shared library. The
504 dynamic linker copies the data addressed by the symbol from the
505 shared library into the object, because the object being
506 run has to have the data at some particular address. */
507 HOWTO (R_PPC64_COPY, /* type */
509 0, /* this one is variable size */
511 FALSE, /* pc_relative */
513 complain_overflow_dont, /* complain_on_overflow */
514 ppc64_elf_unhandled_reloc, /* special_function */
515 "R_PPC64_COPY", /* name */
516 FALSE, /* partial_inplace */
519 FALSE), /* pcrel_offset */
521 /* Like R_PPC64_ADDR64, but used when setting global offset table
523 HOWTO (R_PPC64_GLOB_DAT, /* type */
525 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
527 FALSE, /* pc_relative */
529 complain_overflow_dont, /* complain_on_overflow */
530 ppc64_elf_unhandled_reloc, /* special_function */
531 "R_PPC64_GLOB_DAT", /* name */
532 FALSE, /* partial_inplace */
534 ONES (64), /* dst_mask */
535 FALSE), /* pcrel_offset */
537 /* Created by the link editor. Marks a procedure linkage table
538 entry for a symbol. */
539 HOWTO (R_PPC64_JMP_SLOT, /* type */
541 0, /* size (0 = byte, 1 = short, 2 = long) */
543 FALSE, /* pc_relative */
545 complain_overflow_dont, /* complain_on_overflow */
546 ppc64_elf_unhandled_reloc, /* special_function */
547 "R_PPC64_JMP_SLOT", /* name */
548 FALSE, /* partial_inplace */
551 FALSE), /* pcrel_offset */
553 /* Used only by the dynamic linker. When the object is run, this
554 doubleword64 is set to the load address of the object, plus the
556 HOWTO (R_PPC64_RELATIVE, /* type */
558 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
560 FALSE, /* pc_relative */
562 complain_overflow_dont, /* complain_on_overflow */
563 bfd_elf_generic_reloc, /* special_function */
564 "R_PPC64_RELATIVE", /* name */
565 FALSE, /* partial_inplace */
567 ONES (64), /* dst_mask */
568 FALSE), /* pcrel_offset */
570 /* Like R_PPC64_ADDR32, but may be unaligned. */
571 HOWTO (R_PPC64_UADDR32, /* type */
573 2, /* size (0 = byte, 1 = short, 2 = long) */
575 FALSE, /* pc_relative */
577 complain_overflow_bitfield, /* complain_on_overflow */
578 bfd_elf_generic_reloc, /* special_function */
579 "R_PPC64_UADDR32", /* name */
580 FALSE, /* partial_inplace */
582 0xffffffff, /* dst_mask */
583 FALSE), /* pcrel_offset */
585 /* Like R_PPC64_ADDR16, but may be unaligned. */
586 HOWTO (R_PPC64_UADDR16, /* type */
588 1, /* size (0 = byte, 1 = short, 2 = long) */
590 FALSE, /* pc_relative */
592 complain_overflow_bitfield, /* complain_on_overflow */
593 bfd_elf_generic_reloc, /* special_function */
594 "R_PPC64_UADDR16", /* name */
595 FALSE, /* partial_inplace */
597 0xffff, /* dst_mask */
598 FALSE), /* pcrel_offset */
600 /* 32-bit PC relative. */
601 HOWTO (R_PPC64_REL32, /* type */
603 2, /* size (0 = byte, 1 = short, 2 = long) */
605 TRUE, /* pc_relative */
607 /* FIXME: Verify. Was complain_overflow_bitfield. */
608 complain_overflow_signed, /* complain_on_overflow */
609 bfd_elf_generic_reloc, /* special_function */
610 "R_PPC64_REL32", /* name */
611 FALSE, /* partial_inplace */
613 0xffffffff, /* dst_mask */
614 TRUE), /* pcrel_offset */
616 /* 32-bit relocation to the symbol's procedure linkage table. */
617 HOWTO (R_PPC64_PLT32, /* type */
619 2, /* size (0 = byte, 1 = short, 2 = long) */
621 FALSE, /* pc_relative */
623 complain_overflow_bitfield, /* complain_on_overflow */
624 ppc64_elf_unhandled_reloc, /* special_function */
625 "R_PPC64_PLT32", /* name */
626 FALSE, /* partial_inplace */
628 0xffffffff, /* dst_mask */
629 FALSE), /* pcrel_offset */
631 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
632 FIXME: R_PPC64_PLTREL32 not supported. */
633 HOWTO (R_PPC64_PLTREL32, /* type */
635 2, /* size (0 = byte, 1 = short, 2 = long) */
637 TRUE, /* pc_relative */
639 complain_overflow_signed, /* complain_on_overflow */
640 bfd_elf_generic_reloc, /* special_function */
641 "R_PPC64_PLTREL32", /* name */
642 FALSE, /* partial_inplace */
644 0xffffffff, /* dst_mask */
645 TRUE), /* pcrel_offset */
647 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
649 HOWTO (R_PPC64_PLT16_LO, /* type */
651 1, /* size (0 = byte, 1 = short, 2 = long) */
653 FALSE, /* pc_relative */
655 complain_overflow_dont, /* complain_on_overflow */
656 ppc64_elf_unhandled_reloc, /* special_function */
657 "R_PPC64_PLT16_LO", /* name */
658 FALSE, /* partial_inplace */
660 0xffff, /* dst_mask */
661 FALSE), /* pcrel_offset */
663 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
665 HOWTO (R_PPC64_PLT16_HI, /* type */
667 1, /* size (0 = byte, 1 = short, 2 = long) */
669 FALSE, /* pc_relative */
671 complain_overflow_dont, /* complain_on_overflow */
672 ppc64_elf_unhandled_reloc, /* special_function */
673 "R_PPC64_PLT16_HI", /* name */
674 FALSE, /* partial_inplace */
676 0xffff, /* dst_mask */
677 FALSE), /* pcrel_offset */
679 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
681 HOWTO (R_PPC64_PLT16_HA, /* type */
683 1, /* size (0 = byte, 1 = short, 2 = long) */
685 FALSE, /* pc_relative */
687 complain_overflow_dont, /* complain_on_overflow */
688 ppc64_elf_unhandled_reloc, /* special_function */
689 "R_PPC64_PLT16_HA", /* name */
690 FALSE, /* partial_inplace */
692 0xffff, /* dst_mask */
693 FALSE), /* pcrel_offset */
695 /* 16-bit section relative relocation. */
696 HOWTO (R_PPC64_SECTOFF, /* type */
698 1, /* size (0 = byte, 1 = short, 2 = long) */
700 FALSE, /* pc_relative */
702 complain_overflow_bitfield, /* complain_on_overflow */
703 ppc64_elf_sectoff_reloc, /* special_function */
704 "R_PPC64_SECTOFF", /* name */
705 FALSE, /* partial_inplace */
707 0xffff, /* dst_mask */
708 FALSE), /* pcrel_offset */
710 /* Like R_PPC64_SECTOFF, but no overflow warning. */
711 HOWTO (R_PPC64_SECTOFF_LO, /* type */
713 1, /* size (0 = byte, 1 = short, 2 = long) */
715 FALSE, /* pc_relative */
717 complain_overflow_dont, /* complain_on_overflow */
718 ppc64_elf_sectoff_reloc, /* special_function */
719 "R_PPC64_SECTOFF_LO", /* name */
720 FALSE, /* partial_inplace */
722 0xffff, /* dst_mask */
723 FALSE), /* pcrel_offset */
725 /* 16-bit upper half section relative relocation. */
726 HOWTO (R_PPC64_SECTOFF_HI, /* type */
728 1, /* size (0 = byte, 1 = short, 2 = long) */
730 FALSE, /* pc_relative */
732 complain_overflow_dont, /* complain_on_overflow */
733 ppc64_elf_sectoff_reloc, /* special_function */
734 "R_PPC64_SECTOFF_HI", /* name */
735 FALSE, /* partial_inplace */
737 0xffff, /* dst_mask */
738 FALSE), /* pcrel_offset */
740 /* 16-bit upper half adjusted section relative relocation. */
741 HOWTO (R_PPC64_SECTOFF_HA, /* type */
743 1, /* size (0 = byte, 1 = short, 2 = long) */
745 FALSE, /* pc_relative */
747 complain_overflow_dont, /* complain_on_overflow */
748 ppc64_elf_sectoff_ha_reloc, /* special_function */
749 "R_PPC64_SECTOFF_HA", /* name */
750 FALSE, /* partial_inplace */
752 0xffff, /* dst_mask */
753 FALSE), /* pcrel_offset */
755 /* Like R_PPC64_REL24 without touching the two least significant bits. */
756 HOWTO (R_PPC64_REL30, /* type */
758 2, /* size (0 = byte, 1 = short, 2 = long) */
760 TRUE, /* pc_relative */
762 complain_overflow_dont, /* complain_on_overflow */
763 bfd_elf_generic_reloc, /* special_function */
764 "R_PPC64_REL30", /* name */
765 FALSE, /* partial_inplace */
767 0xfffffffc, /* dst_mask */
768 TRUE), /* pcrel_offset */
770 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
772 /* A standard 64-bit relocation. */
773 HOWTO (R_PPC64_ADDR64, /* type */
775 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
777 FALSE, /* pc_relative */
779 complain_overflow_dont, /* complain_on_overflow */
780 bfd_elf_generic_reloc, /* special_function */
781 "R_PPC64_ADDR64", /* name */
782 FALSE, /* partial_inplace */
784 ONES (64), /* dst_mask */
785 FALSE), /* pcrel_offset */
787 /* The bits 32-47 of an address. */
788 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
790 1, /* size (0 = byte, 1 = short, 2 = long) */
792 FALSE, /* pc_relative */
794 complain_overflow_dont, /* complain_on_overflow */
795 bfd_elf_generic_reloc, /* special_function */
796 "R_PPC64_ADDR16_HIGHER", /* name */
797 FALSE, /* partial_inplace */
799 0xffff, /* dst_mask */
800 FALSE), /* pcrel_offset */
802 /* The bits 32-47 of an address, plus 1 if the contents of the low
803 16 bits, treated as a signed number, is negative. */
804 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
806 1, /* size (0 = byte, 1 = short, 2 = long) */
808 FALSE, /* pc_relative */
810 complain_overflow_dont, /* complain_on_overflow */
811 ppc64_elf_ha_reloc, /* special_function */
812 "R_PPC64_ADDR16_HIGHERA", /* name */
813 FALSE, /* partial_inplace */
815 0xffff, /* dst_mask */
816 FALSE), /* pcrel_offset */
818 /* The bits 48-63 of an address. */
819 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
821 1, /* size (0 = byte, 1 = short, 2 = long) */
823 FALSE, /* pc_relative */
825 complain_overflow_dont, /* complain_on_overflow */
826 bfd_elf_generic_reloc, /* special_function */
827 "R_PPC64_ADDR16_HIGHEST", /* name */
828 FALSE, /* partial_inplace */
830 0xffff, /* dst_mask */
831 FALSE), /* pcrel_offset */
833 /* The bits 48-63 of an address, plus 1 if the contents of the low
834 16 bits, treated as a signed number, is negative. */
835 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
837 1, /* size (0 = byte, 1 = short, 2 = long) */
839 FALSE, /* pc_relative */
841 complain_overflow_dont, /* complain_on_overflow */
842 ppc64_elf_ha_reloc, /* special_function */
843 "R_PPC64_ADDR16_HIGHESTA", /* name */
844 FALSE, /* partial_inplace */
846 0xffff, /* dst_mask */
847 FALSE), /* pcrel_offset */
849 /* Like ADDR64, but may be unaligned. */
850 HOWTO (R_PPC64_UADDR64, /* type */
852 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
854 FALSE, /* pc_relative */
856 complain_overflow_dont, /* complain_on_overflow */
857 bfd_elf_generic_reloc, /* special_function */
858 "R_PPC64_UADDR64", /* name */
859 FALSE, /* partial_inplace */
861 ONES (64), /* dst_mask */
862 FALSE), /* pcrel_offset */
864 /* 64-bit relative relocation. */
865 HOWTO (R_PPC64_REL64, /* type */
867 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
869 TRUE, /* pc_relative */
871 complain_overflow_dont, /* complain_on_overflow */
872 bfd_elf_generic_reloc, /* special_function */
873 "R_PPC64_REL64", /* name */
874 FALSE, /* partial_inplace */
876 ONES (64), /* dst_mask */
877 TRUE), /* pcrel_offset */
879 /* 64-bit relocation to the symbol's procedure linkage table. */
880 HOWTO (R_PPC64_PLT64, /* type */
882 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
884 FALSE, /* pc_relative */
886 complain_overflow_dont, /* complain_on_overflow */
887 ppc64_elf_unhandled_reloc, /* special_function */
888 "R_PPC64_PLT64", /* name */
889 FALSE, /* partial_inplace */
891 ONES (64), /* dst_mask */
892 FALSE), /* pcrel_offset */
894 /* 64-bit PC relative relocation to the symbol's procedure linkage
896 /* FIXME: R_PPC64_PLTREL64 not supported. */
897 HOWTO (R_PPC64_PLTREL64, /* type */
899 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
901 TRUE, /* pc_relative */
903 complain_overflow_dont, /* complain_on_overflow */
904 ppc64_elf_unhandled_reloc, /* special_function */
905 "R_PPC64_PLTREL64", /* name */
906 FALSE, /* partial_inplace */
908 ONES (64), /* dst_mask */
909 TRUE), /* pcrel_offset */
911 /* 16 bit TOC-relative relocation. */
913 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
914 HOWTO (R_PPC64_TOC16, /* type */
916 1, /* size (0 = byte, 1 = short, 2 = long) */
918 FALSE, /* pc_relative */
920 complain_overflow_signed, /* complain_on_overflow */
921 ppc64_elf_toc_reloc, /* special_function */
922 "R_PPC64_TOC16", /* name */
923 FALSE, /* partial_inplace */
925 0xffff, /* dst_mask */
926 FALSE), /* pcrel_offset */
928 /* 16 bit TOC-relative relocation without overflow. */
930 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
931 HOWTO (R_PPC64_TOC16_LO, /* type */
933 1, /* size (0 = byte, 1 = short, 2 = long) */
935 FALSE, /* pc_relative */
937 complain_overflow_dont, /* complain_on_overflow */
938 ppc64_elf_toc_reloc, /* special_function */
939 "R_PPC64_TOC16_LO", /* name */
940 FALSE, /* partial_inplace */
942 0xffff, /* dst_mask */
943 FALSE), /* pcrel_offset */
945 /* 16 bit TOC-relative relocation, high 16 bits. */
947 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
948 HOWTO (R_PPC64_TOC16_HI, /* type */
950 1, /* size (0 = byte, 1 = short, 2 = long) */
952 FALSE, /* pc_relative */
954 complain_overflow_dont, /* complain_on_overflow */
955 ppc64_elf_toc_reloc, /* special_function */
956 "R_PPC64_TOC16_HI", /* name */
957 FALSE, /* partial_inplace */
959 0xffff, /* dst_mask */
960 FALSE), /* pcrel_offset */
962 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
963 contents of the low 16 bits, treated as a signed number, is
966 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
967 HOWTO (R_PPC64_TOC16_HA, /* type */
969 1, /* size (0 = byte, 1 = short, 2 = long) */
971 FALSE, /* pc_relative */
973 complain_overflow_dont, /* complain_on_overflow */
974 ppc64_elf_toc_ha_reloc, /* special_function */
975 "R_PPC64_TOC16_HA", /* name */
976 FALSE, /* partial_inplace */
978 0xffff, /* dst_mask */
979 FALSE), /* pcrel_offset */
981 /* 64-bit relocation; insert value of TOC base (.TOC.). */
983 /* R_PPC64_TOC 51 doubleword64 .TOC. */
984 HOWTO (R_PPC64_TOC, /* type */
986 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
988 FALSE, /* pc_relative */
990 complain_overflow_bitfield, /* complain_on_overflow */
991 ppc64_elf_toc64_reloc, /* special_function */
992 "R_PPC64_TOC", /* name */
993 FALSE, /* partial_inplace */
995 ONES (64), /* dst_mask */
996 FALSE), /* pcrel_offset */
998 /* Like R_PPC64_GOT16, but also informs the link editor that the
999 value to relocate may (!) refer to a PLT entry which the link
1000 editor (a) may replace with the symbol value. If the link editor
1001 is unable to fully resolve the symbol, it may (b) create a PLT
1002 entry and store the address to the new PLT entry in the GOT.
1003 This permits lazy resolution of function symbols at run time.
1004 The link editor may also skip all of this and just (c) emit a
1005 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
1006 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
1007 HOWTO (R_PPC64_PLTGOT16, /* type */
1009 1, /* size (0 = byte, 1 = short, 2 = long) */
1011 FALSE, /* pc_relative */
1013 complain_overflow_signed, /* complain_on_overflow */
1014 ppc64_elf_unhandled_reloc, /* special_function */
1015 "R_PPC64_PLTGOT16", /* name */
1016 FALSE, /* partial_inplace */
1018 0xffff, /* dst_mask */
1019 FALSE), /* pcrel_offset */
1021 /* Like R_PPC64_PLTGOT16, but without overflow. */
1022 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1023 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
1025 1, /* size (0 = byte, 1 = short, 2 = long) */
1027 FALSE, /* pc_relative */
1029 complain_overflow_dont, /* complain_on_overflow */
1030 ppc64_elf_unhandled_reloc, /* special_function */
1031 "R_PPC64_PLTGOT16_LO", /* name */
1032 FALSE, /* partial_inplace */
1034 0xffff, /* dst_mask */
1035 FALSE), /* pcrel_offset */
1037 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1038 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1039 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1040 16, /* rightshift */
1041 1, /* size (0 = byte, 1 = short, 2 = long) */
1043 FALSE, /* pc_relative */
1045 complain_overflow_dont, /* complain_on_overflow */
1046 ppc64_elf_unhandled_reloc, /* special_function */
1047 "R_PPC64_PLTGOT16_HI", /* name */
1048 FALSE, /* partial_inplace */
1050 0xffff, /* dst_mask */
1051 FALSE), /* pcrel_offset */
1053 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1054 1 if the contents of the low 16 bits, treated as a signed number,
1056 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1057 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1058 16, /* rightshift */
1059 1, /* size (0 = byte, 1 = short, 2 = long) */
1061 FALSE, /* pc_relative */
1063 complain_overflow_dont,/* complain_on_overflow */
1064 ppc64_elf_unhandled_reloc, /* special_function */
1065 "R_PPC64_PLTGOT16_HA", /* name */
1066 FALSE, /* partial_inplace */
1068 0xffff, /* dst_mask */
1069 FALSE), /* pcrel_offset */
1071 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1072 HOWTO (R_PPC64_ADDR16_DS, /* type */
1074 1, /* size (0 = byte, 1 = short, 2 = long) */
1076 FALSE, /* pc_relative */
1078 complain_overflow_bitfield, /* complain_on_overflow */
1079 bfd_elf_generic_reloc, /* special_function */
1080 "R_PPC64_ADDR16_DS", /* name */
1081 FALSE, /* partial_inplace */
1083 0xfffc, /* dst_mask */
1084 FALSE), /* pcrel_offset */
1086 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1087 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1089 1, /* size (0 = byte, 1 = short, 2 = long) */
1091 FALSE, /* pc_relative */
1093 complain_overflow_dont,/* complain_on_overflow */
1094 bfd_elf_generic_reloc, /* special_function */
1095 "R_PPC64_ADDR16_LO_DS",/* name */
1096 FALSE, /* partial_inplace */
1098 0xfffc, /* dst_mask */
1099 FALSE), /* pcrel_offset */
1101 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1102 HOWTO (R_PPC64_GOT16_DS, /* type */
1104 1, /* size (0 = byte, 1 = short, 2 = long) */
1106 FALSE, /* pc_relative */
1108 complain_overflow_signed, /* complain_on_overflow */
1109 ppc64_elf_unhandled_reloc, /* special_function */
1110 "R_PPC64_GOT16_DS", /* name */
1111 FALSE, /* partial_inplace */
1113 0xfffc, /* dst_mask */
1114 FALSE), /* pcrel_offset */
1116 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1117 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1119 1, /* size (0 = byte, 1 = short, 2 = long) */
1121 FALSE, /* pc_relative */
1123 complain_overflow_dont, /* complain_on_overflow */
1124 ppc64_elf_unhandled_reloc, /* special_function */
1125 "R_PPC64_GOT16_LO_DS", /* name */
1126 FALSE, /* partial_inplace */
1128 0xfffc, /* dst_mask */
1129 FALSE), /* pcrel_offset */
1131 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1132 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1134 1, /* size (0 = byte, 1 = short, 2 = long) */
1136 FALSE, /* pc_relative */
1138 complain_overflow_dont, /* complain_on_overflow */
1139 ppc64_elf_unhandled_reloc, /* special_function */
1140 "R_PPC64_PLT16_LO_DS", /* name */
1141 FALSE, /* partial_inplace */
1143 0xfffc, /* dst_mask */
1144 FALSE), /* pcrel_offset */
1146 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1147 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1149 1, /* size (0 = byte, 1 = short, 2 = long) */
1151 FALSE, /* pc_relative */
1153 complain_overflow_bitfield, /* complain_on_overflow */
1154 ppc64_elf_sectoff_reloc, /* special_function */
1155 "R_PPC64_SECTOFF_DS", /* name */
1156 FALSE, /* partial_inplace */
1158 0xfffc, /* dst_mask */
1159 FALSE), /* pcrel_offset */
1161 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1162 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1164 1, /* size (0 = byte, 1 = short, 2 = long) */
1166 FALSE, /* pc_relative */
1168 complain_overflow_dont, /* complain_on_overflow */
1169 ppc64_elf_sectoff_reloc, /* special_function */
1170 "R_PPC64_SECTOFF_LO_DS",/* name */
1171 FALSE, /* partial_inplace */
1173 0xfffc, /* dst_mask */
1174 FALSE), /* pcrel_offset */
1176 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1177 HOWTO (R_PPC64_TOC16_DS, /* type */
1179 1, /* size (0 = byte, 1 = short, 2 = long) */
1181 FALSE, /* pc_relative */
1183 complain_overflow_signed, /* complain_on_overflow */
1184 ppc64_elf_toc_reloc, /* special_function */
1185 "R_PPC64_TOC16_DS", /* name */
1186 FALSE, /* partial_inplace */
1188 0xfffc, /* dst_mask */
1189 FALSE), /* pcrel_offset */
1191 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1192 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1194 1, /* size (0 = byte, 1 = short, 2 = long) */
1196 FALSE, /* pc_relative */
1198 complain_overflow_dont, /* complain_on_overflow */
1199 ppc64_elf_toc_reloc, /* special_function */
1200 "R_PPC64_TOC16_LO_DS", /* name */
1201 FALSE, /* partial_inplace */
1203 0xfffc, /* dst_mask */
1204 FALSE), /* pcrel_offset */
1206 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1207 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1208 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1210 1, /* size (0 = byte, 1 = short, 2 = long) */
1212 FALSE, /* pc_relative */
1214 complain_overflow_signed, /* complain_on_overflow */
1215 ppc64_elf_unhandled_reloc, /* special_function */
1216 "R_PPC64_PLTGOT16_DS", /* name */
1217 FALSE, /* partial_inplace */
1219 0xfffc, /* dst_mask */
1220 FALSE), /* pcrel_offset */
1222 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1223 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1224 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1226 1, /* size (0 = byte, 1 = short, 2 = long) */
1228 FALSE, /* pc_relative */
1230 complain_overflow_dont, /* complain_on_overflow */
1231 ppc64_elf_unhandled_reloc, /* special_function */
1232 "R_PPC64_PLTGOT16_LO_DS",/* name */
1233 FALSE, /* partial_inplace */
1235 0xfffc, /* dst_mask */
1236 FALSE), /* pcrel_offset */
1238 /* Marker reloc for TLS. */
1241 2, /* size (0 = byte, 1 = short, 2 = long) */
1243 FALSE, /* pc_relative */
1245 complain_overflow_dont, /* complain_on_overflow */
1246 bfd_elf_generic_reloc, /* special_function */
1247 "R_PPC64_TLS", /* name */
1248 FALSE, /* partial_inplace */
1251 FALSE), /* pcrel_offset */
1253 /* Computes the load module index of the load module that contains the
1254 definition of its TLS sym. */
1255 HOWTO (R_PPC64_DTPMOD64,
1257 4, /* size (0 = byte, 1 = short, 2 = long) */
1259 FALSE, /* pc_relative */
1261 complain_overflow_dont, /* complain_on_overflow */
1262 ppc64_elf_unhandled_reloc, /* special_function */
1263 "R_PPC64_DTPMOD64", /* name */
1264 FALSE, /* partial_inplace */
1266 ONES (64), /* dst_mask */
1267 FALSE), /* pcrel_offset */
1269 /* Computes a dtv-relative displacement, the difference between the value
1270 of sym+add and the base address of the thread-local storage block that
1271 contains the definition of sym, minus 0x8000. */
1272 HOWTO (R_PPC64_DTPREL64,
1274 4, /* size (0 = byte, 1 = short, 2 = long) */
1276 FALSE, /* pc_relative */
1278 complain_overflow_dont, /* complain_on_overflow */
1279 ppc64_elf_unhandled_reloc, /* special_function */
1280 "R_PPC64_DTPREL64", /* name */
1281 FALSE, /* partial_inplace */
1283 ONES (64), /* dst_mask */
1284 FALSE), /* pcrel_offset */
1286 /* A 16 bit dtprel reloc. */
1287 HOWTO (R_PPC64_DTPREL16,
1289 1, /* size (0 = byte, 1 = short, 2 = long) */
1291 FALSE, /* pc_relative */
1293 complain_overflow_signed, /* complain_on_overflow */
1294 ppc64_elf_unhandled_reloc, /* special_function */
1295 "R_PPC64_DTPREL16", /* name */
1296 FALSE, /* partial_inplace */
1298 0xffff, /* dst_mask */
1299 FALSE), /* pcrel_offset */
1301 /* Like DTPREL16, but no overflow. */
1302 HOWTO (R_PPC64_DTPREL16_LO,
1304 1, /* size (0 = byte, 1 = short, 2 = long) */
1306 FALSE, /* pc_relative */
1308 complain_overflow_dont, /* complain_on_overflow */
1309 ppc64_elf_unhandled_reloc, /* special_function */
1310 "R_PPC64_DTPREL16_LO", /* name */
1311 FALSE, /* partial_inplace */
1313 0xffff, /* dst_mask */
1314 FALSE), /* pcrel_offset */
1316 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1317 HOWTO (R_PPC64_DTPREL16_HI,
1318 16, /* rightshift */
1319 1, /* size (0 = byte, 1 = short, 2 = long) */
1321 FALSE, /* pc_relative */
1323 complain_overflow_dont, /* complain_on_overflow */
1324 ppc64_elf_unhandled_reloc, /* special_function */
1325 "R_PPC64_DTPREL16_HI", /* name */
1326 FALSE, /* partial_inplace */
1328 0xffff, /* dst_mask */
1329 FALSE), /* pcrel_offset */
1331 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1332 HOWTO (R_PPC64_DTPREL16_HA,
1333 16, /* rightshift */
1334 1, /* size (0 = byte, 1 = short, 2 = long) */
1336 FALSE, /* pc_relative */
1338 complain_overflow_dont, /* complain_on_overflow */
1339 ppc64_elf_unhandled_reloc, /* special_function */
1340 "R_PPC64_DTPREL16_HA", /* name */
1341 FALSE, /* partial_inplace */
1343 0xffff, /* dst_mask */
1344 FALSE), /* pcrel_offset */
1346 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1347 HOWTO (R_PPC64_DTPREL16_HIGHER,
1348 32, /* rightshift */
1349 1, /* size (0 = byte, 1 = short, 2 = long) */
1351 FALSE, /* pc_relative */
1353 complain_overflow_dont, /* complain_on_overflow */
1354 ppc64_elf_unhandled_reloc, /* special_function */
1355 "R_PPC64_DTPREL16_HIGHER", /* name */
1356 FALSE, /* partial_inplace */
1358 0xffff, /* dst_mask */
1359 FALSE), /* pcrel_offset */
1361 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1362 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1363 32, /* rightshift */
1364 1, /* size (0 = byte, 1 = short, 2 = long) */
1366 FALSE, /* pc_relative */
1368 complain_overflow_dont, /* complain_on_overflow */
1369 ppc64_elf_unhandled_reloc, /* special_function */
1370 "R_PPC64_DTPREL16_HIGHERA", /* name */
1371 FALSE, /* partial_inplace */
1373 0xffff, /* dst_mask */
1374 FALSE), /* pcrel_offset */
1376 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1377 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1378 48, /* rightshift */
1379 1, /* size (0 = byte, 1 = short, 2 = long) */
1381 FALSE, /* pc_relative */
1383 complain_overflow_dont, /* complain_on_overflow */
1384 ppc64_elf_unhandled_reloc, /* special_function */
1385 "R_PPC64_DTPREL16_HIGHEST", /* name */
1386 FALSE, /* partial_inplace */
1388 0xffff, /* dst_mask */
1389 FALSE), /* pcrel_offset */
1391 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1392 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1393 48, /* rightshift */
1394 1, /* size (0 = byte, 1 = short, 2 = long) */
1396 FALSE, /* pc_relative */
1398 complain_overflow_dont, /* complain_on_overflow */
1399 ppc64_elf_unhandled_reloc, /* special_function */
1400 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1401 FALSE, /* partial_inplace */
1403 0xffff, /* dst_mask */
1404 FALSE), /* pcrel_offset */
1406 /* Like DTPREL16, but for insns with a DS field. */
1407 HOWTO (R_PPC64_DTPREL16_DS,
1409 1, /* size (0 = byte, 1 = short, 2 = long) */
1411 FALSE, /* pc_relative */
1413 complain_overflow_signed, /* complain_on_overflow */
1414 ppc64_elf_unhandled_reloc, /* special_function */
1415 "R_PPC64_DTPREL16_DS", /* name */
1416 FALSE, /* partial_inplace */
1418 0xfffc, /* dst_mask */
1419 FALSE), /* pcrel_offset */
1421 /* Like DTPREL16_DS, but no overflow. */
1422 HOWTO (R_PPC64_DTPREL16_LO_DS,
1424 1, /* size (0 = byte, 1 = short, 2 = long) */
1426 FALSE, /* pc_relative */
1428 complain_overflow_dont, /* complain_on_overflow */
1429 ppc64_elf_unhandled_reloc, /* special_function */
1430 "R_PPC64_DTPREL16_LO_DS", /* name */
1431 FALSE, /* partial_inplace */
1433 0xfffc, /* dst_mask */
1434 FALSE), /* pcrel_offset */
1436 /* Computes a tp-relative displacement, the difference between the value of
1437 sym+add and the value of the thread pointer (r13). */
1438 HOWTO (R_PPC64_TPREL64,
1440 4, /* size (0 = byte, 1 = short, 2 = long) */
1442 FALSE, /* pc_relative */
1444 complain_overflow_dont, /* complain_on_overflow */
1445 ppc64_elf_unhandled_reloc, /* special_function */
1446 "R_PPC64_TPREL64", /* name */
1447 FALSE, /* partial_inplace */
1449 ONES (64), /* dst_mask */
1450 FALSE), /* pcrel_offset */
1452 /* A 16 bit tprel reloc. */
1453 HOWTO (R_PPC64_TPREL16,
1455 1, /* size (0 = byte, 1 = short, 2 = long) */
1457 FALSE, /* pc_relative */
1459 complain_overflow_signed, /* complain_on_overflow */
1460 ppc64_elf_unhandled_reloc, /* special_function */
1461 "R_PPC64_TPREL16", /* name */
1462 FALSE, /* partial_inplace */
1464 0xffff, /* dst_mask */
1465 FALSE), /* pcrel_offset */
1467 /* Like TPREL16, but no overflow. */
1468 HOWTO (R_PPC64_TPREL16_LO,
1470 1, /* size (0 = byte, 1 = short, 2 = long) */
1472 FALSE, /* pc_relative */
1474 complain_overflow_dont, /* complain_on_overflow */
1475 ppc64_elf_unhandled_reloc, /* special_function */
1476 "R_PPC64_TPREL16_LO", /* name */
1477 FALSE, /* partial_inplace */
1479 0xffff, /* dst_mask */
1480 FALSE), /* pcrel_offset */
1482 /* Like TPREL16_LO, but next higher group of 16 bits. */
1483 HOWTO (R_PPC64_TPREL16_HI,
1484 16, /* rightshift */
1485 1, /* size (0 = byte, 1 = short, 2 = long) */
1487 FALSE, /* pc_relative */
1489 complain_overflow_dont, /* complain_on_overflow */
1490 ppc64_elf_unhandled_reloc, /* special_function */
1491 "R_PPC64_TPREL16_HI", /* name */
1492 FALSE, /* partial_inplace */
1494 0xffff, /* dst_mask */
1495 FALSE), /* pcrel_offset */
1497 /* Like TPREL16_HI, but adjust for low 16 bits. */
1498 HOWTO (R_PPC64_TPREL16_HA,
1499 16, /* rightshift */
1500 1, /* size (0 = byte, 1 = short, 2 = long) */
1502 FALSE, /* pc_relative */
1504 complain_overflow_dont, /* complain_on_overflow */
1505 ppc64_elf_unhandled_reloc, /* special_function */
1506 "R_PPC64_TPREL16_HA", /* name */
1507 FALSE, /* partial_inplace */
1509 0xffff, /* dst_mask */
1510 FALSE), /* pcrel_offset */
1512 /* Like TPREL16_HI, but next higher group of 16 bits. */
1513 HOWTO (R_PPC64_TPREL16_HIGHER,
1514 32, /* rightshift */
1515 1, /* size (0 = byte, 1 = short, 2 = long) */
1517 FALSE, /* pc_relative */
1519 complain_overflow_dont, /* complain_on_overflow */
1520 ppc64_elf_unhandled_reloc, /* special_function */
1521 "R_PPC64_TPREL16_HIGHER", /* name */
1522 FALSE, /* partial_inplace */
1524 0xffff, /* dst_mask */
1525 FALSE), /* pcrel_offset */
1527 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1528 HOWTO (R_PPC64_TPREL16_HIGHERA,
1529 32, /* rightshift */
1530 1, /* size (0 = byte, 1 = short, 2 = long) */
1532 FALSE, /* pc_relative */
1534 complain_overflow_dont, /* complain_on_overflow */
1535 ppc64_elf_unhandled_reloc, /* special_function */
1536 "R_PPC64_TPREL16_HIGHERA", /* name */
1537 FALSE, /* partial_inplace */
1539 0xffff, /* dst_mask */
1540 FALSE), /* pcrel_offset */
1542 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1543 HOWTO (R_PPC64_TPREL16_HIGHEST,
1544 48, /* rightshift */
1545 1, /* size (0 = byte, 1 = short, 2 = long) */
1547 FALSE, /* pc_relative */
1549 complain_overflow_dont, /* complain_on_overflow */
1550 ppc64_elf_unhandled_reloc, /* special_function */
1551 "R_PPC64_TPREL16_HIGHEST", /* name */
1552 FALSE, /* partial_inplace */
1554 0xffff, /* dst_mask */
1555 FALSE), /* pcrel_offset */
1557 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1558 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1559 48, /* rightshift */
1560 1, /* size (0 = byte, 1 = short, 2 = long) */
1562 FALSE, /* pc_relative */
1564 complain_overflow_dont, /* complain_on_overflow */
1565 ppc64_elf_unhandled_reloc, /* special_function */
1566 "R_PPC64_TPREL16_HIGHESTA", /* name */
1567 FALSE, /* partial_inplace */
1569 0xffff, /* dst_mask */
1570 FALSE), /* pcrel_offset */
1572 /* Like TPREL16, but for insns with a DS field. */
1573 HOWTO (R_PPC64_TPREL16_DS,
1575 1, /* size (0 = byte, 1 = short, 2 = long) */
1577 FALSE, /* pc_relative */
1579 complain_overflow_signed, /* complain_on_overflow */
1580 ppc64_elf_unhandled_reloc, /* special_function */
1581 "R_PPC64_TPREL16_DS", /* name */
1582 FALSE, /* partial_inplace */
1584 0xfffc, /* dst_mask */
1585 FALSE), /* pcrel_offset */
1587 /* Like TPREL16_DS, but no overflow. */
1588 HOWTO (R_PPC64_TPREL16_LO_DS,
1590 1, /* size (0 = byte, 1 = short, 2 = long) */
1592 FALSE, /* pc_relative */
1594 complain_overflow_dont, /* complain_on_overflow */
1595 ppc64_elf_unhandled_reloc, /* special_function */
1596 "R_PPC64_TPREL16_LO_DS", /* name */
1597 FALSE, /* partial_inplace */
1599 0xfffc, /* dst_mask */
1600 FALSE), /* pcrel_offset */
1602 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1603 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1604 to the first entry relative to the TOC base (r2). */
1605 HOWTO (R_PPC64_GOT_TLSGD16,
1607 1, /* size (0 = byte, 1 = short, 2 = long) */
1609 FALSE, /* pc_relative */
1611 complain_overflow_signed, /* complain_on_overflow */
1612 ppc64_elf_unhandled_reloc, /* special_function */
1613 "R_PPC64_GOT_TLSGD16", /* name */
1614 FALSE, /* partial_inplace */
1616 0xffff, /* dst_mask */
1617 FALSE), /* pcrel_offset */
1619 /* Like GOT_TLSGD16, but no overflow. */
1620 HOWTO (R_PPC64_GOT_TLSGD16_LO,
1622 1, /* size (0 = byte, 1 = short, 2 = long) */
1624 FALSE, /* pc_relative */
1626 complain_overflow_dont, /* complain_on_overflow */
1627 ppc64_elf_unhandled_reloc, /* special_function */
1628 "R_PPC64_GOT_TLSGD16_LO", /* name */
1629 FALSE, /* partial_inplace */
1631 0xffff, /* dst_mask */
1632 FALSE), /* pcrel_offset */
1634 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1635 HOWTO (R_PPC64_GOT_TLSGD16_HI,
1636 16, /* rightshift */
1637 1, /* size (0 = byte, 1 = short, 2 = long) */
1639 FALSE, /* pc_relative */
1641 complain_overflow_dont, /* complain_on_overflow */
1642 ppc64_elf_unhandled_reloc, /* special_function */
1643 "R_PPC64_GOT_TLSGD16_HI", /* name */
1644 FALSE, /* partial_inplace */
1646 0xffff, /* dst_mask */
1647 FALSE), /* pcrel_offset */
1649 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1650 HOWTO (R_PPC64_GOT_TLSGD16_HA,
1651 16, /* rightshift */
1652 1, /* size (0 = byte, 1 = short, 2 = long) */
1654 FALSE, /* pc_relative */
1656 complain_overflow_dont, /* complain_on_overflow */
1657 ppc64_elf_unhandled_reloc, /* special_function */
1658 "R_PPC64_GOT_TLSGD16_HA", /* name */
1659 FALSE, /* partial_inplace */
1661 0xffff, /* dst_mask */
1662 FALSE), /* pcrel_offset */
1664 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1665 with values (sym+add)@dtpmod and zero, and computes the offset to the
1666 first entry relative to the TOC base (r2). */
1667 HOWTO (R_PPC64_GOT_TLSLD16,
1669 1, /* size (0 = byte, 1 = short, 2 = long) */
1671 FALSE, /* pc_relative */
1673 complain_overflow_signed, /* complain_on_overflow */
1674 ppc64_elf_unhandled_reloc, /* special_function */
1675 "R_PPC64_GOT_TLSLD16", /* name */
1676 FALSE, /* partial_inplace */
1678 0xffff, /* dst_mask */
1679 FALSE), /* pcrel_offset */
1681 /* Like GOT_TLSLD16, but no overflow. */
1682 HOWTO (R_PPC64_GOT_TLSLD16_LO,
1684 1, /* size (0 = byte, 1 = short, 2 = long) */
1686 FALSE, /* pc_relative */
1688 complain_overflow_dont, /* complain_on_overflow */
1689 ppc64_elf_unhandled_reloc, /* special_function */
1690 "R_PPC64_GOT_TLSLD16_LO", /* name */
1691 FALSE, /* partial_inplace */
1693 0xffff, /* dst_mask */
1694 FALSE), /* pcrel_offset */
1696 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1697 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1698 16, /* rightshift */
1699 1, /* size (0 = byte, 1 = short, 2 = long) */
1701 FALSE, /* pc_relative */
1703 complain_overflow_dont, /* complain_on_overflow */
1704 ppc64_elf_unhandled_reloc, /* special_function */
1705 "R_PPC64_GOT_TLSLD16_HI", /* name */
1706 FALSE, /* partial_inplace */
1708 0xffff, /* dst_mask */
1709 FALSE), /* pcrel_offset */
1711 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1712 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1713 16, /* rightshift */
1714 1, /* size (0 = byte, 1 = short, 2 = long) */
1716 FALSE, /* pc_relative */
1718 complain_overflow_dont, /* complain_on_overflow */
1719 ppc64_elf_unhandled_reloc, /* special_function */
1720 "R_PPC64_GOT_TLSLD16_HA", /* name */
1721 FALSE, /* partial_inplace */
1723 0xffff, /* dst_mask */
1724 FALSE), /* pcrel_offset */
1726 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1727 the offset to the entry relative to the TOC base (r2). */
1728 HOWTO (R_PPC64_GOT_DTPREL16_DS,
1730 1, /* size (0 = byte, 1 = short, 2 = long) */
1732 FALSE, /* pc_relative */
1734 complain_overflow_signed, /* complain_on_overflow */
1735 ppc64_elf_unhandled_reloc, /* special_function */
1736 "R_PPC64_GOT_DTPREL16_DS", /* name */
1737 FALSE, /* partial_inplace */
1739 0xfffc, /* dst_mask */
1740 FALSE), /* pcrel_offset */
1742 /* Like GOT_DTPREL16_DS, but no overflow. */
1743 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
1745 1, /* size (0 = byte, 1 = short, 2 = long) */
1747 FALSE, /* pc_relative */
1749 complain_overflow_dont, /* complain_on_overflow */
1750 ppc64_elf_unhandled_reloc, /* special_function */
1751 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
1752 FALSE, /* partial_inplace */
1754 0xfffc, /* dst_mask */
1755 FALSE), /* pcrel_offset */
1757 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1758 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1759 16, /* rightshift */
1760 1, /* size (0 = byte, 1 = short, 2 = long) */
1762 FALSE, /* pc_relative */
1764 complain_overflow_dont, /* complain_on_overflow */
1765 ppc64_elf_unhandled_reloc, /* special_function */
1766 "R_PPC64_GOT_DTPREL16_HI", /* name */
1767 FALSE, /* partial_inplace */
1769 0xffff, /* dst_mask */
1770 FALSE), /* pcrel_offset */
1772 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1773 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1774 16, /* rightshift */
1775 1, /* size (0 = byte, 1 = short, 2 = long) */
1777 FALSE, /* pc_relative */
1779 complain_overflow_dont, /* complain_on_overflow */
1780 ppc64_elf_unhandled_reloc, /* special_function */
1781 "R_PPC64_GOT_DTPREL16_HA", /* name */
1782 FALSE, /* partial_inplace */
1784 0xffff, /* dst_mask */
1785 FALSE), /* pcrel_offset */
1787 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1788 offset to the entry relative to the TOC base (r2). */
1789 HOWTO (R_PPC64_GOT_TPREL16_DS,
1791 1, /* size (0 = byte, 1 = short, 2 = long) */
1793 FALSE, /* pc_relative */
1795 complain_overflow_signed, /* complain_on_overflow */
1796 ppc64_elf_unhandled_reloc, /* special_function */
1797 "R_PPC64_GOT_TPREL16_DS", /* name */
1798 FALSE, /* partial_inplace */
1800 0xfffc, /* dst_mask */
1801 FALSE), /* pcrel_offset */
1803 /* Like GOT_TPREL16_DS, but no overflow. */
1804 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
1806 1, /* size (0 = byte, 1 = short, 2 = long) */
1808 FALSE, /* pc_relative */
1810 complain_overflow_dont, /* complain_on_overflow */
1811 ppc64_elf_unhandled_reloc, /* special_function */
1812 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
1813 FALSE, /* partial_inplace */
1815 0xfffc, /* dst_mask */
1816 FALSE), /* pcrel_offset */
1818 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1819 HOWTO (R_PPC64_GOT_TPREL16_HI,
1820 16, /* rightshift */
1821 1, /* size (0 = byte, 1 = short, 2 = long) */
1823 FALSE, /* pc_relative */
1825 complain_overflow_dont, /* complain_on_overflow */
1826 ppc64_elf_unhandled_reloc, /* special_function */
1827 "R_PPC64_GOT_TPREL16_HI", /* name */
1828 FALSE, /* partial_inplace */
1830 0xffff, /* dst_mask */
1831 FALSE), /* pcrel_offset */
1833 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1834 HOWTO (R_PPC64_GOT_TPREL16_HA,
1835 16, /* rightshift */
1836 1, /* size (0 = byte, 1 = short, 2 = long) */
1838 FALSE, /* pc_relative */
1840 complain_overflow_dont, /* complain_on_overflow */
1841 ppc64_elf_unhandled_reloc, /* special_function */
1842 "R_PPC64_GOT_TPREL16_HA", /* name */
1843 FALSE, /* partial_inplace */
1845 0xffff, /* dst_mask */
1846 FALSE), /* pcrel_offset */
1848 /* GNU extension to record C++ vtable hierarchy. */
1849 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1851 0, /* size (0 = byte, 1 = short, 2 = long) */
1853 FALSE, /* pc_relative */
1855 complain_overflow_dont, /* complain_on_overflow */
1856 NULL, /* special_function */
1857 "R_PPC64_GNU_VTINHERIT", /* name */
1858 FALSE, /* partial_inplace */
1861 FALSE), /* pcrel_offset */
1863 /* GNU extension to record C++ vtable member usage. */
1864 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1866 0, /* size (0 = byte, 1 = short, 2 = long) */
1868 FALSE, /* pc_relative */
1870 complain_overflow_dont, /* complain_on_overflow */
1871 NULL, /* special_function */
1872 "R_PPC64_GNU_VTENTRY", /* name */
1873 FALSE, /* partial_inplace */
1876 FALSE), /* pcrel_offset */
1880 /* Initialize the ppc64_elf_howto_table, so that linear accesses can
1884 ppc_howto_init (void)
1886 unsigned int i, type;
1889 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1892 type = ppc64_elf_howto_raw[i].type;
1893 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1894 / sizeof (ppc64_elf_howto_table[0])));
1895 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1899 static reloc_howto_type *
1900 ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1901 bfd_reloc_code_real_type code)
1903 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
1905 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1906 /* Initialize howto table if needed. */
1914 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1916 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1918 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1920 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1922 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1924 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1926 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
1928 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
1930 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
1932 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
1934 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
1936 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
1938 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
1940 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
1942 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
1944 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
1946 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
1948 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
1950 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
1952 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
1954 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
1956 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
1958 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
1960 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
1962 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
1964 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
1966 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
1968 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
1970 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
1972 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
1974 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
1976 case BFD_RELOC_64: r = R_PPC64_ADDR64;
1978 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
1980 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
1982 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
1984 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
1986 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
1988 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
1990 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
1992 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
1994 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
1996 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
1998 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
2000 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
2002 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
2004 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
2006 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
2008 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
2010 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
2012 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
2014 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
2016 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
2018 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
2020 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
2022 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
2024 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
2026 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
2028 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
2030 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
2032 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
2034 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
2036 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
2038 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
2040 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
2042 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
2044 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
2046 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2048 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2050 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2052 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2054 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2056 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2058 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2060 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2062 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2064 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2066 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2068 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2070 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2072 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2074 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2076 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2078 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2080 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2082 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2084 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2086 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2088 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2090 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2092 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2094 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2096 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2098 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2100 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2102 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2104 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2106 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2108 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2110 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2112 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2114 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
2118 return ppc64_elf_howto_table[r];
2121 static reloc_howto_type *
2122 ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2128 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
2130 if (ppc64_elf_howto_raw[i].name != NULL
2131 && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0)
2132 return &ppc64_elf_howto_raw[i];
2137 /* Set the howto pointer for a PowerPC ELF reloc. */
2140 ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2141 Elf_Internal_Rela *dst)
2145 /* Initialize howto table if needed. */
2146 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
2149 type = ELF64_R_TYPE (dst->r_info);
2150 if (type >= (sizeof (ppc64_elf_howto_table)
2151 / sizeof (ppc64_elf_howto_table[0])))
2153 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2155 type = R_PPC64_NONE;
2157 cache_ptr->howto = ppc64_elf_howto_table[type];
2160 /* Handle the R_PPC64_ADDR16_HA and similar relocs. */
2162 static bfd_reloc_status_type
2163 ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2164 void *data, asection *input_section,
2165 bfd *output_bfd, char **error_message)
2167 /* If this is a relocatable link (output_bfd test tells us), just
2168 call the generic function. Any adjustment will be done at final
2170 if (output_bfd != NULL)
2171 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2172 input_section, output_bfd, error_message);
2174 /* Adjust the addend for sign extension of the low 16 bits.
2175 We won't actually be using the low 16 bits, so trashing them
2177 reloc_entry->addend += 0x8000;
2178 return bfd_reloc_continue;
2181 static bfd_reloc_status_type
2182 ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2183 void *data, asection *input_section,
2184 bfd *output_bfd, char **error_message)
2186 if (output_bfd != NULL)
2187 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2188 input_section, output_bfd, error_message);
2190 if (strcmp (symbol->section->name, ".opd") == 0
2191 && (symbol->section->owner->flags & DYNAMIC) == 0)
2193 bfd_vma dest = opd_entry_value (symbol->section,
2194 symbol->value + reloc_entry->addend,
2196 if (dest != (bfd_vma) -1)
2197 reloc_entry->addend = dest - (symbol->value
2198 + symbol->section->output_section->vma
2199 + symbol->section->output_offset);
2201 return bfd_reloc_continue;
2204 static bfd_reloc_status_type
2205 ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2206 void *data, asection *input_section,
2207 bfd *output_bfd, char **error_message)
2210 enum elf_ppc64_reloc_type r_type;
2211 bfd_size_type octets;
2212 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
2213 bfd_boolean is_power4 = FALSE;
2215 /* If this is a relocatable link (output_bfd test tells us), just
2216 call the generic function. Any adjustment will be done at final
2218 if (output_bfd != NULL)
2219 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2220 input_section, output_bfd, error_message);
2222 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2223 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2224 insn &= ~(0x01 << 21);
2225 r_type = reloc_entry->howto->type;
2226 if (r_type == R_PPC64_ADDR14_BRTAKEN
2227 || r_type == R_PPC64_REL14_BRTAKEN)
2228 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
2232 /* Set 'a' bit. This is 0b00010 in BO field for branch
2233 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2234 for branch on CTR insns (BO == 1a00t or 1a01t). */
2235 if ((insn & (0x14 << 21)) == (0x04 << 21))
2237 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2247 if (!bfd_is_com_section (symbol->section))
2248 target = symbol->value;
2249 target += symbol->section->output_section->vma;
2250 target += symbol->section->output_offset;
2251 target += reloc_entry->addend;
2253 from = (reloc_entry->address
2254 + input_section->output_offset
2255 + input_section->output_section->vma);
2257 /* Invert 'y' bit if not the default. */
2258 if ((bfd_signed_vma) (target - from) < 0)
2261 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2263 return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data,
2264 input_section, output_bfd, error_message);
2267 static bfd_reloc_status_type
2268 ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2269 void *data, asection *input_section,
2270 bfd *output_bfd, char **error_message)
2272 /* If this is a relocatable link (output_bfd test tells us), just
2273 call the generic function. Any adjustment will be done at final
2275 if (output_bfd != NULL)
2276 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2277 input_section, output_bfd, error_message);
2279 /* Subtract the symbol section base address. */
2280 reloc_entry->addend -= symbol->section->output_section->vma;
2281 return bfd_reloc_continue;
2284 static bfd_reloc_status_type
2285 ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2286 void *data, asection *input_section,
2287 bfd *output_bfd, char **error_message)
2289 /* If this is a relocatable link (output_bfd test tells us), just
2290 call the generic function. Any adjustment will be done at final
2292 if (output_bfd != NULL)
2293 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2294 input_section, output_bfd, error_message);
2296 /* Subtract the symbol section base address. */
2297 reloc_entry->addend -= symbol->section->output_section->vma;
2299 /* Adjust the addend for sign extension of the low 16 bits. */
2300 reloc_entry->addend += 0x8000;
2301 return bfd_reloc_continue;
2304 static bfd_reloc_status_type
2305 ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2306 void *data, asection *input_section,
2307 bfd *output_bfd, char **error_message)
2311 /* If this is a relocatable link (output_bfd test tells us), just
2312 call the generic function. Any adjustment will be done at final
2314 if (output_bfd != NULL)
2315 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2316 input_section, output_bfd, error_message);
2318 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2320 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2322 /* Subtract the TOC base address. */
2323 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2324 return bfd_reloc_continue;
2327 static bfd_reloc_status_type
2328 ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2329 void *data, asection *input_section,
2330 bfd *output_bfd, char **error_message)
2334 /* If this is a relocatable link (output_bfd test tells us), just
2335 call the generic function. Any adjustment will be done at final
2337 if (output_bfd != NULL)
2338 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2339 input_section, output_bfd, error_message);
2341 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2343 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2345 /* Subtract the TOC base address. */
2346 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2348 /* Adjust the addend for sign extension of the low 16 bits. */
2349 reloc_entry->addend += 0x8000;
2350 return bfd_reloc_continue;
2353 static bfd_reloc_status_type
2354 ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2355 void *data, asection *input_section,
2356 bfd *output_bfd, char **error_message)
2359 bfd_size_type octets;
2361 /* If this is a relocatable link (output_bfd test tells us), just
2362 call the generic function. Any adjustment will be done at final
2364 if (output_bfd != NULL)
2365 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2366 input_section, output_bfd, error_message);
2368 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2370 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2372 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2373 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2374 return bfd_reloc_ok;
2377 static bfd_reloc_status_type
2378 ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2379 void *data, asection *input_section,
2380 bfd *output_bfd, char **error_message)
2382 /* If this is a relocatable link (output_bfd test tells us), just
2383 call the generic function. Any adjustment will be done at final
2385 if (output_bfd != NULL)
2386 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2387 input_section, output_bfd, error_message);
2389 if (error_message != NULL)
2391 static char buf[60];
2392 sprintf (buf, "generic linker can't handle %s",
2393 reloc_entry->howto->name);
2394 *error_message = buf;
2396 return bfd_reloc_dangerous;
2399 struct ppc64_elf_obj_tdata
2401 struct elf_obj_tdata elf;
2403 /* Shortcuts to dynamic linker sections. */
2407 /* Used during garbage collection. We attach global symbols defined
2408 on removed .opd entries to this section so that the sym is removed. */
2409 asection *deleted_section;
2411 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2412 sections means we potentially need one of these for each input bfd. */
2414 bfd_signed_vma refcount;
2418 /* A copy of relocs before they are modified for --emit-relocs. */
2419 Elf_Internal_Rela *opd_relocs;
2422 #define ppc64_elf_tdata(bfd) \
2423 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2425 #define ppc64_tlsld_got(bfd) \
2426 (&ppc64_elf_tdata (bfd)->tlsld_got)
2428 /* Override the generic function because we store some extras. */
2431 ppc64_elf_mkobject (bfd *abfd)
2433 if (abfd->tdata.any == NULL)
2435 bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata);
2436 abfd->tdata.any = bfd_zalloc (abfd, amt);
2437 if (abfd->tdata.any == NULL)
2440 return bfd_elf_mkobject (abfd);
2443 /* Return 1 if target is one of ours. */
2446 is_ppc64_elf_target (const struct bfd_target *targ)
2448 extern const bfd_target bfd_elf64_powerpc_vec;
2449 extern const bfd_target bfd_elf64_powerpcle_vec;
2451 return targ == &bfd_elf64_powerpc_vec || targ == &bfd_elf64_powerpcle_vec;
2454 /* Fix bad default arch selected for a 64 bit input bfd when the
2455 default is 32 bit. */
2458 ppc64_elf_object_p (bfd *abfd)
2460 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2462 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2464 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2466 /* Relies on arch after 32 bit default being 64 bit default. */
2467 abfd->arch_info = abfd->arch_info->next;
2468 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2474 /* Support for core dump NOTE sections. */
2477 ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2479 size_t offset, size;
2481 if (note->descsz != 504)
2485 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2488 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2494 /* Make a ".reg/999" section. */
2495 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2496 size, note->descpos + offset);
2500 ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2502 if (note->descsz != 136)
2505 elf_tdata (abfd)->core_program
2506 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2507 elf_tdata (abfd)->core_command
2508 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2514 ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type,
2527 va_start (ap, note_type);
2528 memset (data, 0, 40);
2529 strncpy (data + 40, va_arg (ap, const char *), 16);
2530 strncpy (data + 56, va_arg (ap, const char *), 80);
2532 return elfcore_write_note (abfd, buf, bufsiz,
2533 "CORE", note_type, data, sizeof (data));
2544 va_start (ap, note_type);
2545 memset (data, 0, 112);
2546 pid = va_arg (ap, long);
2547 bfd_put_32 (abfd, pid, data + 32);
2548 cursig = va_arg (ap, int);
2549 bfd_put_16 (abfd, cursig, data + 12);
2550 greg = va_arg (ap, const void *);
2551 memcpy (data + 112, greg, 384);
2552 memset (data + 496, 0, 8);
2554 return elfcore_write_note (abfd, buf, bufsiz,
2555 "CORE", note_type, data, sizeof (data));
2560 /* Merge backend specific data from an object file to the output
2561 object file when linking. */
2564 ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
2566 /* Check if we have the same endianess. */
2567 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
2568 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
2569 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2573 if (bfd_big_endian (ibfd))
2574 msg = _("%B: compiled for a big endian system "
2575 "and target is little endian");
2577 msg = _("%B: compiled for a little endian system "
2578 "and target is big endian");
2580 (*_bfd_error_handler) (msg, ibfd);
2582 bfd_set_error (bfd_error_wrong_format);
2589 /* Add extra PPC sections. */
2591 static const struct bfd_elf_special_section ppc64_elf_special_sections[]=
2593 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 },
2594 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2595 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2596 { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2597 { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2598 { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2599 { NULL, 0, 0, 0, 0 }
2602 enum _ppc64_sec_type {
2608 struct _ppc64_elf_section_data
2610 struct bfd_elf_section_data elf;
2614 /* An array with one entry for each opd function descriptor. */
2615 struct _opd_sec_data
2617 /* Points to the function code section for local opd entries. */
2618 asection **func_sec;
2620 /* After editing .opd, adjust references to opd local syms. */
2624 /* An array for toc sections, indexed by offset/8.
2625 Specifies the relocation symbol index used at a given toc offset. */
2629 enum _ppc64_sec_type sec_type:2;
2631 /* Flag set when small branches are detected. Used to
2632 select suitable defaults for the stub group size. */
2633 unsigned int has_14bit_branch:1;
2636 #define ppc64_elf_section_data(sec) \
2637 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
2640 ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
2642 if (!sec->used_by_bfd)
2644 struct _ppc64_elf_section_data *sdata;
2645 bfd_size_type amt = sizeof (*sdata);
2647 sdata = bfd_zalloc (abfd, amt);
2650 sec->used_by_bfd = sdata;
2653 return _bfd_elf_new_section_hook (abfd, sec);
2656 static struct _opd_sec_data *
2657 get_opd_info (asection * sec)
2660 && ppc64_elf_section_data (sec) != NULL
2661 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
2662 return &ppc64_elf_section_data (sec)->u.opd;
2666 /* Parameters for the qsort hook. */
2667 static asection *synthetic_opd;
2668 static bfd_boolean synthetic_relocatable;
2670 /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */
2673 compare_symbols (const void *ap, const void *bp)
2675 const asymbol *a = * (const asymbol **) ap;
2676 const asymbol *b = * (const asymbol **) bp;
2678 /* Section symbols first. */
2679 if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM))
2681 if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM))
2684 /* then .opd symbols. */
2685 if (a->section == synthetic_opd && b->section != synthetic_opd)
2687 if (a->section != synthetic_opd && b->section == synthetic_opd)
2690 /* then other code symbols. */
2691 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2692 == (SEC_CODE | SEC_ALLOC)
2693 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2694 != (SEC_CODE | SEC_ALLOC))
2697 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2698 != (SEC_CODE | SEC_ALLOC)
2699 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2700 == (SEC_CODE | SEC_ALLOC))
2703 if (synthetic_relocatable)
2705 if (a->section->id < b->section->id)
2708 if (a->section->id > b->section->id)
2712 if (a->value + a->section->vma < b->value + b->section->vma)
2715 if (a->value + a->section->vma > b->value + b->section->vma)
2718 /* For syms with the same value, prefer strong dynamic global function
2719 syms over other syms. */
2720 if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0)
2723 if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0)
2726 if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0)
2729 if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0)
2732 if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0)
2735 if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0)
2738 if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0)
2741 if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0)
2747 /* Search SYMS for a symbol of the given VALUE. */
2750 sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value)
2758 mid = (lo + hi) >> 1;
2759 if (syms[mid]->value + syms[mid]->section->vma < value)
2761 else if (syms[mid]->value + syms[mid]->section->vma > value)
2771 mid = (lo + hi) >> 1;
2772 if (syms[mid]->section->id < id)
2774 else if (syms[mid]->section->id > id)
2776 else if (syms[mid]->value < value)
2778 else if (syms[mid]->value > value)
2787 /* Create synthetic symbols, effectively restoring "dot-symbol" function
2791 ppc64_elf_get_synthetic_symtab (bfd *abfd,
2792 long static_count, asymbol **static_syms,
2793 long dyn_count, asymbol **dyn_syms,
2800 long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
2802 bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
2807 opd = bfd_get_section_by_name (abfd, ".opd");
2811 symcount = static_count;
2813 symcount += dyn_count;
2817 syms = bfd_malloc ((symcount + 1) * sizeof (*syms));
2821 if (!relocatable && static_count != 0 && dyn_count != 0)
2823 /* Use both symbol tables. */
2824 memcpy (syms, static_syms, static_count * sizeof (*syms));
2825 memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms));
2827 else if (!relocatable && static_count == 0)
2828 memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms));
2830 memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms));
2832 synthetic_opd = opd;
2833 synthetic_relocatable = relocatable;
2834 qsort (syms, symcount, sizeof (*syms), compare_symbols);
2836 if (!relocatable && symcount > 1)
2839 /* Trim duplicate syms, since we may have merged the normal and
2840 dynamic symbols. Actually, we only care about syms that have
2841 different values, so trim any with the same value. */
2842 for (i = 1, j = 1; i < symcount; ++i)
2843 if (syms[i - 1]->value + syms[i - 1]->section->vma
2844 != syms[i]->value + syms[i]->section->vma)
2845 syms[j++] = syms[i];
2850 if (syms[i]->section == opd)
2854 for (; i < symcount; ++i)
2855 if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2856 != (SEC_CODE | SEC_ALLOC))
2857 || (syms[i]->flags & BSF_SECTION_SYM) == 0)
2861 for (; i < symcount; ++i)
2862 if ((syms[i]->flags & BSF_SECTION_SYM) == 0)
2866 for (; i < symcount; ++i)
2867 if (syms[i]->section != opd)
2871 for (; i < symcount; ++i)
2872 if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2873 != (SEC_CODE | SEC_ALLOC))
2878 if (opdsymend == secsymend)
2883 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2888 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2889 relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0;
2893 if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE))
2900 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
2904 while (r < opd->relocation + relcount
2905 && r->address < syms[i]->value + opd->vma)
2908 if (r == opd->relocation + relcount)
2911 if (r->address != syms[i]->value + opd->vma)
2914 if (r->howto->type != R_PPC64_ADDR64)
2917 sym = *r->sym_ptr_ptr;
2918 if (!sym_exists_at (syms, opdsymend, symcount,
2919 sym->section->id, sym->value + r->addend))
2922 size += sizeof (asymbol);
2923 size += strlen (syms[i]->name) + 2;
2927 s = *ret = bfd_malloc (size);
2934 names = (char *) (s + count);
2936 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
2940 while (r < opd->relocation + relcount
2941 && r->address < syms[i]->value + opd->vma)
2944 if (r == opd->relocation + relcount)
2947 if (r->address != syms[i]->value + opd->vma)
2950 if (r->howto->type != R_PPC64_ADDR64)
2953 sym = *r->sym_ptr_ptr;
2954 if (!sym_exists_at (syms, opdsymend, symcount,
2955 sym->section->id, sym->value + r->addend))
2960 s->section = sym->section;
2961 s->value = sym->value + r->addend;
2964 len = strlen (syms[i]->name);
2965 memcpy (names, syms[i]->name, len + 1);
2967 /* Have udata.p point back to the original symbol this
2968 synthetic symbol was derived from. */
2969 s->udata.p = syms[i];
2979 if (!bfd_malloc_and_get_section (abfd, opd, &contents))
2983 free_contents_and_exit:
2991 for (i = secsymend; i < opdsymend; ++i)
2995 ent = bfd_get_64 (abfd, contents + syms[i]->value);
2996 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
2999 size += sizeof (asymbol);
3000 size += strlen (syms[i]->name) + 2;
3004 s = *ret = bfd_malloc (size);
3006 goto free_contents_and_exit;
3008 names = (char *) (s + count);
3010 for (i = secsymend; i < opdsymend; ++i)
3014 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3015 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
3019 asection *sec = abfd->sections;
3026 long mid = (lo + hi) >> 1;
3027 if (syms[mid]->section->vma < ent)
3029 else if (syms[mid]->section->vma > ent)
3033 sec = syms[mid]->section;
3038 if (lo >= hi && lo > codesecsym)
3039 sec = syms[lo - 1]->section;
3041 for (; sec != NULL; sec = sec->next)
3045 if ((sec->flags & SEC_ALLOC) == 0
3046 || (sec->flags & SEC_LOAD) == 0)
3048 if ((sec->flags & SEC_CODE) != 0)
3051 s->value = ent - s->section->vma;
3054 len = strlen (syms[i]->name);
3055 memcpy (names, syms[i]->name, len + 1);
3057 /* Have udata.p point back to the original symbol this
3058 synthetic symbol was derived from. */
3059 s->udata.p = syms[i];
3071 /* The following functions are specific to the ELF linker, while
3072 functions above are used generally. Those named ppc64_elf_* are
3073 called by the main ELF linker code. They appear in this file more
3074 or less in the order in which they are called. eg.
3075 ppc64_elf_check_relocs is called early in the link process,
3076 ppc64_elf_finish_dynamic_sections is one of the last functions
3079 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
3080 functions have both a function code symbol and a function descriptor
3081 symbol. A call to foo in a relocatable object file looks like:
3088 The function definition in another object file might be:
3092 . .quad .TOC.@tocbase
3098 When the linker resolves the call during a static link, the branch
3099 unsurprisingly just goes to .foo and the .opd information is unused.
3100 If the function definition is in a shared library, things are a little
3101 different: The call goes via a plt call stub, the opd information gets
3102 copied to the plt, and the linker patches the nop.
3110 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
3111 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
3112 . std 2,40(1) # this is the general idea
3120 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
3122 The "reloc ()" notation is supposed to indicate that the linker emits
3123 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
3126 What are the difficulties here? Well, firstly, the relocations
3127 examined by the linker in check_relocs are against the function code
3128 sym .foo, while the dynamic relocation in the plt is emitted against
3129 the function descriptor symbol, foo. Somewhere along the line, we need
3130 to carefully copy dynamic link information from one symbol to the other.
3131 Secondly, the generic part of the elf linker will make .foo a dynamic
3132 symbol as is normal for most other backends. We need foo dynamic
3133 instead, at least for an application final link. However, when
3134 creating a shared library containing foo, we need to have both symbols
3135 dynamic so that references to .foo are satisfied during the early
3136 stages of linking. Otherwise the linker might decide to pull in a
3137 definition from some other object, eg. a static library.
3139 Update: As of August 2004, we support a new convention. Function
3140 calls may use the function descriptor symbol, ie. "bl foo". This
3141 behaves exactly as "bl .foo". */
3143 /* The linker needs to keep track of the number of relocs that it
3144 decides to copy as dynamic relocs in check_relocs for each symbol.
3145 This is so that it can later discard them if they are found to be
3146 unnecessary. We store the information in a field extending the
3147 regular ELF linker hash table. */
3149 struct ppc_dyn_relocs
3151 struct ppc_dyn_relocs *next;
3153 /* The input section of the reloc. */
3156 /* Total number of relocs copied for the input section. */
3157 bfd_size_type count;
3159 /* Number of pc-relative relocs copied for the input section. */
3160 bfd_size_type pc_count;
3163 /* Track GOT entries needed for a given symbol. We might need more
3164 than one got entry per symbol. */
3167 struct got_entry *next;
3169 /* The symbol addend that we'll be placing in the GOT. */
3172 /* Unlike other ELF targets, we use separate GOT entries for the same
3173 symbol referenced from different input files. This is to support
3174 automatic multiple TOC/GOT sections, where the TOC base can vary
3175 from one input file to another. FIXME: After group_sections we
3176 ought to merge entries within the group.
3178 Point to the BFD owning this GOT entry. */
3181 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
3182 TLS_TPREL or TLS_DTPREL for tls entries. */
3185 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
3188 bfd_signed_vma refcount;
3193 /* The same for PLT. */
3196 struct plt_entry *next;
3202 bfd_signed_vma refcount;
3207 /* Of those relocs that might be copied as dynamic relocs, this macro
3208 selects those that must be copied when linking a shared library,
3209 even when the symbol is local. */
3211 #define MUST_BE_DYN_RELOC(RTYPE) \
3212 ((RTYPE) != R_PPC64_REL32 \
3213 && (RTYPE) != R_PPC64_REL64 \
3214 && (RTYPE) != R_PPC64_REL30)
3216 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3217 copying dynamic variables from a shared lib into an app's dynbss
3218 section, and instead use a dynamic relocation to point into the
3219 shared lib. With code that gcc generates, it's vital that this be
3220 enabled; In the PowerPC64 ABI, the address of a function is actually
3221 the address of a function descriptor, which resides in the .opd
3222 section. gcc uses the descriptor directly rather than going via the
3223 GOT as some other ABI's do, which means that initialized function
3224 pointers must reference the descriptor. Thus, a function pointer
3225 initialized to the address of a function in a shared library will
3226 either require a copy reloc, or a dynamic reloc. Using a copy reloc
3227 redefines the function descriptor symbol to point to the copy. This
3228 presents a problem as a plt entry for that function is also
3229 initialized from the function descriptor symbol and the copy reloc
3230 may not be initialized first. */
3231 #define ELIMINATE_COPY_RELOCS 1
3233 /* Section name for stubs is the associated section name plus this
3235 #define STUB_SUFFIX ".stub"
3238 ppc_stub_long_branch:
3239 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3240 destination, but a 24 bit branch in a stub section will reach.
3243 ppc_stub_plt_branch:
3244 Similar to the above, but a 24 bit branch in the stub section won't
3245 reach its destination.
3246 . addis %r12,%r2,xxx@toc@ha
3247 . ld %r11,xxx@toc@l(%r12)
3252 Used to call a function in a shared library. If it so happens that
3253 the plt entry referenced crosses a 64k boundary, then an extra
3254 "addi %r12,%r12,xxx@toc@l" will be inserted before the "mtctr".
3255 . addis %r12,%r2,xxx@toc@ha
3257 . ld %r11,xxx+0@toc@l(%r12)
3259 . ld %r2,xxx+8@toc@l(%r12)
3260 . ld %r11,xxx+16@toc@l(%r12)
3263 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3264 code to adjust the value and save r2 to support multiple toc sections.
3265 A ppc_stub_long_branch with an r2 offset looks like:
3267 . addis %r2,%r2,off@ha
3268 . addi %r2,%r2,off@l
3271 A ppc_stub_plt_branch with an r2 offset looks like:
3273 . addis %r12,%r2,xxx@toc@ha
3274 . ld %r11,xxx@toc@l(%r12)
3275 . addis %r2,%r2,off@ha
3276 . addi %r2,%r2,off@l
3280 In cases where the "addis" instruction would add zero, the "addis" is
3281 omitted and following instructions modified slightly in some cases.
3284 enum ppc_stub_type {
3286 ppc_stub_long_branch,
3287 ppc_stub_long_branch_r2off,
3288 ppc_stub_plt_branch,
3289 ppc_stub_plt_branch_r2off,
3293 struct ppc_stub_hash_entry {
3295 /* Base hash table entry structure. */
3296 struct bfd_hash_entry root;
3298 enum ppc_stub_type stub_type;
3300 /* The stub section. */
3303 /* Offset within stub_sec of the beginning of this stub. */
3304 bfd_vma stub_offset;
3306 /* Given the symbol's value and its section we can determine its final
3307 value when building the stubs (so the stub knows where to jump. */
3308 bfd_vma target_value;
3309 asection *target_section;
3311 /* The symbol table entry, if any, that this was derived from. */
3312 struct ppc_link_hash_entry *h;
3314 /* And the reloc addend that this was derived from. */
3317 /* Where this stub is being called from, or, in the case of combined
3318 stub sections, the first input section in the group. */
3322 struct ppc_branch_hash_entry {
3324 /* Base hash table entry structure. */
3325 struct bfd_hash_entry root;
3327 /* Offset within branch lookup table. */
3328 unsigned int offset;
3330 /* Generation marker. */
3334 struct ppc_link_hash_entry
3336 struct elf_link_hash_entry elf;
3339 /* A pointer to the most recently used stub hash entry against this
3341 struct ppc_stub_hash_entry *stub_cache;
3343 /* A pointer to the next symbol starting with a '.' */
3344 struct ppc_link_hash_entry *next_dot_sym;
3347 /* Track dynamic relocs copied for this symbol. */
3348 struct ppc_dyn_relocs *dyn_relocs;
3350 /* Link between function code and descriptor symbols. */
3351 struct ppc_link_hash_entry *oh;
3353 /* Flag function code and descriptor symbols. */
3354 unsigned int is_func:1;
3355 unsigned int is_func_descriptor:1;
3356 unsigned int fake:1;
3358 /* Whether global opd/toc sym has been adjusted or not.
3359 After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag
3360 should be set for all globals defined in any opd/toc section. */
3361 unsigned int adjust_done:1;
3363 /* Set if we twiddled this symbol to weak at some stage. */
3364 unsigned int was_undefined:1;
3366 /* Contexts in which symbol is used in the GOT (or TOC).
3367 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
3368 corresponding relocs are encountered during check_relocs.
3369 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3370 indicate the corresponding GOT entry type is not needed.
3371 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
3372 a TPREL one. We use a separate flag rather than setting TPREL
3373 just for convenience in distinguishing the two cases. */
3374 #define TLS_GD 1 /* GD reloc. */
3375 #define TLS_LD 2 /* LD reloc. */
3376 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
3377 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3378 #define TLS_TLS 16 /* Any TLS reloc. */
3379 #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
3380 #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
3384 /* ppc64 ELF linker hash table. */
3386 struct ppc_link_hash_table
3388 struct elf_link_hash_table elf;
3390 /* The stub hash table. */
3391 struct bfd_hash_table stub_hash_table;
3393 /* Another hash table for plt_branch stubs. */
3394 struct bfd_hash_table branch_hash_table;
3396 /* Linker stub bfd. */
3399 /* Linker call-backs. */
3400 asection * (*add_stub_section) (const char *, asection *);
3401 void (*layout_sections_again) (void);
3403 /* Array to keep track of which stub sections have been created, and
3404 information on stub grouping. */
3406 /* This is the section to which stubs in the group will be attached. */
3408 /* The stub section. */
3410 /* Along with elf_gp, specifies the TOC pointer used in this group. */
3414 /* Temp used when calculating TOC pointers. */
3417 /* Highest input section id. */
3420 /* Highest output section index. */
3423 /* Used when adding symbols. */
3424 struct ppc_link_hash_entry *dot_syms;
3426 /* List of input sections for each output section. */
3427 asection **input_list;
3429 /* Short-cuts to get to dynamic linker sections. */
3440 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
3441 struct ppc_link_hash_entry *tls_get_addr;
3442 struct ppc_link_hash_entry *tls_get_addr_fd;
3445 unsigned long stub_count[ppc_stub_plt_call];
3447 /* Number of stubs against global syms. */
3448 unsigned long stub_globals;
3450 /* Set if we should emit symbols for stubs. */
3451 unsigned int emit_stub_syms:1;
3453 /* Support for multiple toc sections. */
3454 unsigned int no_multi_toc:1;
3455 unsigned int multi_toc_needed:1;
3458 unsigned int stub_error:1;
3460 /* Temp used by ppc64_elf_check_directives. */
3461 unsigned int twiddled_syms:1;
3463 /* Incremented every time we size stubs. */
3464 unsigned int stub_iteration;
3466 /* Small local sym to section mapping cache. */
3467 struct sym_sec_cache sym_sec;
3470 /* Rename some of the generic section flags to better document how they
3472 #define has_toc_reloc has_gp_reloc
3473 #define makes_toc_func_call need_finalize_relax
3474 #define call_check_in_progress reloc_done
3476 /* Get the ppc64 ELF linker hash table from a link_info structure. */
3478 #define ppc_hash_table(p) \
3479 ((struct ppc_link_hash_table *) ((p)->hash))
3481 #define ppc_stub_hash_lookup(table, string, create, copy) \
3482 ((struct ppc_stub_hash_entry *) \
3483 bfd_hash_lookup ((table), (string), (create), (copy)))
3485 #define ppc_branch_hash_lookup(table, string, create, copy) \
3486 ((struct ppc_branch_hash_entry *) \
3487 bfd_hash_lookup ((table), (string), (create), (copy)))
3489 /* Create an entry in the stub hash table. */
3491 static struct bfd_hash_entry *
3492 stub_hash_newfunc (struct bfd_hash_entry *entry,
3493 struct bfd_hash_table *table,
3496 /* Allocate the structure if it has not already been allocated by a
3500 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
3505 /* Call the allocation method of the superclass. */
3506 entry = bfd_hash_newfunc (entry, table, string);
3509 struct ppc_stub_hash_entry *eh;
3511 /* Initialize the local fields. */
3512 eh = (struct ppc_stub_hash_entry *) entry;
3513 eh->stub_type = ppc_stub_none;
3514 eh->stub_sec = NULL;
3515 eh->stub_offset = 0;
3516 eh->target_value = 0;
3517 eh->target_section = NULL;
3525 /* Create an entry in the branch hash table. */
3527 static struct bfd_hash_entry *
3528 branch_hash_newfunc (struct bfd_hash_entry *entry,
3529 struct bfd_hash_table *table,
3532 /* Allocate the structure if it has not already been allocated by a
3536 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
3541 /* Call the allocation method of the superclass. */
3542 entry = bfd_hash_newfunc (entry, table, string);
3545 struct ppc_branch_hash_entry *eh;
3547 /* Initialize the local fields. */
3548 eh = (struct ppc_branch_hash_entry *) entry;
3556 /* Create an entry in a ppc64 ELF linker hash table. */
3558 static struct bfd_hash_entry *
3559 link_hash_newfunc (struct bfd_hash_entry *entry,
3560 struct bfd_hash_table *table,
3563 /* Allocate the structure if it has not already been allocated by a
3567 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
3572 /* Call the allocation method of the superclass. */
3573 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3576 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
3578 memset (&eh->u.stub_cache, 0,
3579 (sizeof (struct ppc_link_hash_entry)
3580 - offsetof (struct ppc_link_hash_entry, u.stub_cache)));
3582 /* When making function calls, old ABI code references function entry
3583 points (dot symbols), while new ABI code references the function
3584 descriptor symbol. We need to make any combination of reference and
3585 definition work together, without breaking archive linking.
3587 For a defined function "foo" and an undefined call to "bar":
3588 An old object defines "foo" and ".foo", references ".bar" (possibly
3590 A new object defines "foo" and references "bar".
3592 A new object thus has no problem with its undefined symbols being
3593 satisfied by definitions in an old object. On the other hand, the
3594 old object won't have ".bar" satisfied by a new object.
3596 Keep a list of newly added dot-symbols. */
3598 if (string[0] == '.')
3600 struct ppc_link_hash_table *htab;
3602 htab = (struct ppc_link_hash_table *) table;
3603 eh->u.next_dot_sym = htab->dot_syms;
3604 htab->dot_syms = eh;
3611 /* Create a ppc64 ELF linker hash table. */
3613 static struct bfd_link_hash_table *
3614 ppc64_elf_link_hash_table_create (bfd *abfd)
3616 struct ppc_link_hash_table *htab;
3617 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
3619 htab = bfd_zmalloc (amt);
3623 if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc,
3624 sizeof (struct ppc_link_hash_entry)))
3630 /* Init the stub hash table too. */
3631 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc,
3632 sizeof (struct ppc_stub_hash_entry)))
3635 /* And the branch hash table. */
3636 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc,
3637 sizeof (struct ppc_branch_hash_entry)))
3640 /* Initializing two fields of the union is just cosmetic. We really
3641 only care about glist, but when compiled on a 32-bit host the
3642 bfd_vma fields are larger. Setting the bfd_vma to zero makes
3643 debugger inspection of these fields look nicer. */
3644 htab->elf.init_got_refcount.refcount = 0;
3645 htab->elf.init_got_refcount.glist = NULL;
3646 htab->elf.init_plt_refcount.refcount = 0;
3647 htab->elf.init_plt_refcount.glist = NULL;
3648 htab->elf.init_got_offset.offset = 0;
3649 htab->elf.init_got_offset.glist = NULL;
3650 htab->elf.init_plt_offset.offset = 0;
3651 htab->elf.init_plt_offset.glist = NULL;
3653 return &htab->elf.root;
3656 /* Free the derived linker hash table. */
3659 ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
3661 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
3663 bfd_hash_table_free (&ret->stub_hash_table);
3664 bfd_hash_table_free (&ret->branch_hash_table);
3665 _bfd_generic_link_hash_table_free (hash);
3668 /* Satisfy the ELF linker by filling in some fields in our fake bfd. */
3671 ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
3673 struct ppc_link_hash_table *htab;
3675 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
3677 /* Always hook our dynamic sections into the first bfd, which is the
3678 linker created stub bfd. This ensures that the GOT header is at
3679 the start of the output TOC section. */
3680 htab = ppc_hash_table (info);
3681 htab->stub_bfd = abfd;
3682 htab->elf.dynobj = abfd;
3685 /* Build a name for an entry in the stub hash table. */
3688 ppc_stub_name (const asection *input_section,
3689 const asection *sym_sec,
3690 const struct ppc_link_hash_entry *h,
3691 const Elf_Internal_Rela *rel)
3696 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3697 offsets from a sym as a branch target? In fact, we could
3698 probably assume the addend is always zero. */
3699 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3703 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3704 stub_name = bfd_malloc (len);
3705 if (stub_name == NULL)
3708 sprintf (stub_name, "%08x.%s+%x",
3709 input_section->id & 0xffffffff,
3710 h->elf.root.root.string,
3711 (int) rel->r_addend & 0xffffffff);
3715 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
3716 stub_name = bfd_malloc (len);
3717 if (stub_name == NULL)
3720 sprintf (stub_name, "%08x.%x:%x+%x",
3721 input_section->id & 0xffffffff,
3722 sym_sec->id & 0xffffffff,
3723 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3724 (int) rel->r_addend & 0xffffffff);
3726 if (stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
3727 stub_name[len - 2] = 0;
3731 /* Look up an entry in the stub hash. Stub entries are cached because
3732 creating the stub name takes a bit of time. */
3734 static struct ppc_stub_hash_entry *
3735 ppc_get_stub_entry (const asection *input_section,
3736 const asection *sym_sec,
3737 struct ppc_link_hash_entry *h,
3738 const Elf_Internal_Rela *rel,
3739 struct ppc_link_hash_table *htab)
3741 struct ppc_stub_hash_entry *stub_entry;
3742 const asection *id_sec;
3744 /* If this input section is part of a group of sections sharing one
3745 stub section, then use the id of the first section in the group.
3746 Stub names need to include a section id, as there may well be
3747 more than one stub used to reach say, printf, and we need to
3748 distinguish between them. */
3749 id_sec = htab->stub_group[input_section->id].link_sec;
3751 if (h != NULL && h->u.stub_cache != NULL
3752 && h->u.stub_cache->h == h
3753 && h->u.stub_cache->id_sec == id_sec)
3755 stub_entry = h->u.stub_cache;
3761 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3762 if (stub_name == NULL)
3765 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
3766 stub_name, FALSE, FALSE);
3768 h->u.stub_cache = stub_entry;
3776 /* Add a new stub entry to the stub hash. Not all fields of the new
3777 stub entry are initialised. */
3779 static struct ppc_stub_hash_entry *
3780 ppc_add_stub (const char *stub_name,
3782 struct ppc_link_hash_table *htab)
3786 struct ppc_stub_hash_entry *stub_entry;
3788 link_sec = htab->stub_group[section->id].link_sec;
3789 stub_sec = htab->stub_group[section->id].stub_sec;
3790 if (stub_sec == NULL)
3792 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3793 if (stub_sec == NULL)
3799 namelen = strlen (link_sec->name);
3800 len = namelen + sizeof (STUB_SUFFIX);
3801 s_name = bfd_alloc (htab->stub_bfd, len);
3805 memcpy (s_name, link_sec->name, namelen);
3806 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
3807 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3808 if (stub_sec == NULL)
3810 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3812 htab->stub_group[section->id].stub_sec = stub_sec;
3815 /* Enter this entry into the linker stub hash table. */
3816 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
3818 if (stub_entry == NULL)
3820 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
3821 section->owner, stub_name);
3825 stub_entry->stub_sec = stub_sec;
3826 stub_entry->stub_offset = 0;
3827 stub_entry->id_sec = link_sec;
3831 /* Create sections for linker generated code. */
3834 create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
3836 struct ppc_link_hash_table *htab;
3839 htab = ppc_hash_table (info);
3841 /* Create .sfpr for code to save and restore fp regs. */
3842 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3843 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3844 htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
3846 if (htab->sfpr == NULL
3847 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
3850 /* Create .glink for lazy dynamic linking support. */
3851 htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
3853 if (htab->glink == NULL
3854 || ! bfd_set_section_alignment (dynobj, htab->glink, 3))
3857 /* Create branch lookup table for plt_branch stubs. */
3858 flags = (SEC_ALLOC | SEC_LOAD
3859 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3860 htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt",
3862 if (htab->brlt == NULL
3863 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
3869 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3870 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3871 htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj,
3875 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
3881 /* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3882 not already done. */
3885 create_got_section (bfd *abfd, struct bfd_link_info *info)
3887 asection *got, *relgot;
3889 struct ppc_link_hash_table *htab = ppc_hash_table (info);
3893 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
3896 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
3901 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3902 | SEC_LINKER_CREATED);
3904 got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
3906 || !bfd_set_section_alignment (abfd, got, 3))
3909 relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got",
3910 flags | SEC_READONLY);
3912 || ! bfd_set_section_alignment (abfd, relgot, 3))
3915 ppc64_elf_tdata (abfd)->got = got;
3916 ppc64_elf_tdata (abfd)->relgot = relgot;
3920 /* Create the dynamic sections, and set up shortcuts. */
3923 ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
3925 struct ppc_link_hash_table *htab;
3927 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
3930 htab = ppc_hash_table (info);
3932 htab->got = bfd_get_section_by_name (dynobj, ".got");
3933 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
3934 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3935 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
3937 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
3939 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
3940 || (!info->shared && !htab->relbss))
3946 /* Merge PLT info on FROM with that on TO. */
3949 move_plt_plist (struct ppc_link_hash_entry *from,
3950 struct ppc_link_hash_entry *to)
3952 if (from->elf.plt.plist != NULL)
3954 if (to->elf.plt.plist != NULL)
3956 struct plt_entry **entp;
3957 struct plt_entry *ent;
3959 for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; )
3961 struct plt_entry *dent;
3963 for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next)
3964 if (dent->addend == ent->addend)
3966 dent->plt.refcount += ent->plt.refcount;
3973 *entp = to->elf.plt.plist;
3976 to->elf.plt.plist = from->elf.plt.plist;
3977 from->elf.plt.plist = NULL;
3981 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3984 ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info,
3985 struct elf_link_hash_entry *dir,
3986 struct elf_link_hash_entry *ind)
3988 struct ppc_link_hash_entry *edir, *eind;
3990 edir = (struct ppc_link_hash_entry *) dir;
3991 eind = (struct ppc_link_hash_entry *) ind;
3993 /* Copy over any dynamic relocs we may have on the indirect sym. */
3994 if (eind->dyn_relocs != NULL)
3996 if (edir->dyn_relocs != NULL)
3998 struct ppc_dyn_relocs **pp;
3999 struct ppc_dyn_relocs *p;
4001 /* Add reloc counts against the indirect sym to the direct sym
4002 list. Merge any entries against the same section. */
4003 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
4005 struct ppc_dyn_relocs *q;
4007 for (q = edir->dyn_relocs; q != NULL; q = q->next)
4008 if (q->sec == p->sec)
4010 q->pc_count += p->pc_count;
4011 q->count += p->count;
4018 *pp = edir->dyn_relocs;
4021 edir->dyn_relocs = eind->dyn_relocs;
4022 eind->dyn_relocs = NULL;
4025 edir->is_func |= eind->is_func;
4026 edir->is_func_descriptor |= eind->is_func_descriptor;
4027 edir->tls_mask |= eind->tls_mask;
4029 /* If called to transfer flags for a weakdef during processing
4030 of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
4031 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
4032 if (!(ELIMINATE_COPY_RELOCS
4033 && eind->elf.root.type != bfd_link_hash_indirect
4034 && edir->elf.dynamic_adjusted))
4035 edir->elf.non_got_ref |= eind->elf.non_got_ref;
4037 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
4038 edir->elf.ref_regular |= eind->elf.ref_regular;
4039 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
4040 edir->elf.needs_plt |= eind->elf.needs_plt;
4042 /* If we were called to copy over info for a weak sym, that's all. */
4043 if (eind->elf.root.type != bfd_link_hash_indirect)
4046 /* Copy over got entries that we may have already seen to the
4047 symbol which just became indirect. */
4048 if (eind->elf.got.glist != NULL)
4050 if (edir->elf.got.glist != NULL)
4052 struct got_entry **entp;
4053 struct got_entry *ent;
4055 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
4057 struct got_entry *dent;
4059 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
4060 if (dent->addend == ent->addend
4061 && dent->owner == ent->owner
4062 && dent->tls_type == ent->tls_type)
4064 dent->got.refcount += ent->got.refcount;
4071 *entp = edir->elf.got.glist;
4074 edir->elf.got.glist = eind->elf.got.glist;
4075 eind->elf.got.glist = NULL;
4078 /* And plt entries. */
4079 move_plt_plist (eind, edir);
4081 if (eind->elf.dynindx != -1)
4083 if (edir->elf.dynindx != -1)
4084 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
4085 edir->elf.dynstr_index);
4086 edir->elf.dynindx = eind->elf.dynindx;
4087 edir->elf.dynstr_index = eind->elf.dynstr_index;
4088 eind->elf.dynindx = -1;
4089 eind->elf.dynstr_index = 0;
4093 /* Find the function descriptor hash entry from the given function code
4094 hash entry FH. Link the entries via their OH fields. */
4096 static struct ppc_link_hash_entry *
4097 get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
4099 struct ppc_link_hash_entry *fdh = fh->oh;
4103 const char *fd_name = fh->elf.root.root.string + 1;
4105 fdh = (struct ppc_link_hash_entry *)
4106 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
4109 fdh->is_func_descriptor = 1;
4119 /* Make a fake function descriptor sym for the code sym FH. */
4121 static struct ppc_link_hash_entry *
4122 make_fdh (struct bfd_link_info *info,
4123 struct ppc_link_hash_entry *fh)
4127 struct bfd_link_hash_entry *bh;
4128 struct ppc_link_hash_entry *fdh;
4130 abfd = fh->elf.root.u.undef.abfd;
4131 newsym = bfd_make_empty_symbol (abfd);
4132 newsym->name = fh->elf.root.root.string + 1;
4133 newsym->section = bfd_und_section_ptr;
4135 newsym->flags = BSF_WEAK;
4138 if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name,
4139 newsym->flags, newsym->section,
4140 newsym->value, NULL, FALSE, FALSE,
4144 fdh = (struct ppc_link_hash_entry *) bh;
4145 fdh->elf.non_elf = 0;
4147 fdh->is_func_descriptor = 1;
4154 /* Fix function descriptor symbols defined in .opd sections to be
4158 ppc64_elf_add_symbol_hook (bfd *ibfd ATTRIBUTE_UNUSED,
4159 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4160 Elf_Internal_Sym *isym,
4161 const char **name ATTRIBUTE_UNUSED,
4162 flagword *flags ATTRIBUTE_UNUSED,
4164 bfd_vma *value ATTRIBUTE_UNUSED)
4167 && strcmp (bfd_get_section_name (ibfd, *sec), ".opd") == 0)
4168 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
4173 /* This function makes an old ABI object reference to ".bar" cause the
4174 inclusion of a new ABI object archive that defines "bar".
4175 NAME is a symbol defined in an archive. Return a symbol in the hash
4176 table that might be satisfied by the archive symbols. */
4178 static struct elf_link_hash_entry *
4179 ppc64_elf_archive_symbol_lookup (bfd *abfd,
4180 struct bfd_link_info *info,
4183 struct elf_link_hash_entry *h;
4187 h = _bfd_elf_archive_symbol_lookup (abfd, info, name);
4189 /* Don't return this sym if it is a fake function descriptor
4190 created by add_symbol_adjust. */
4191 && !(h->root.type == bfd_link_hash_undefweak
4192 && ((struct ppc_link_hash_entry *) h)->fake))
4198 len = strlen (name);
4199 dot_name = bfd_alloc (abfd, len + 2);
4200 if (dot_name == NULL)
4201 return (struct elf_link_hash_entry *) 0 - 1;
4203 memcpy (dot_name + 1, name, len + 1);
4204 h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);
4205 bfd_release (abfd, dot_name);
4209 /* This function satisfies all old ABI object references to ".bar" if a
4210 new ABI object defines "bar". Well, at least, undefined dot symbols
4211 are made weak. This stops later archive searches from including an
4212 object if we already have a function descriptor definition. It also
4213 prevents the linker complaining about undefined symbols.
4214 We also check and correct mismatched symbol visibility here. The
4215 most restrictive visibility of the function descriptor and the
4216 function entry symbol is used. */
4219 add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info)
4221 struct ppc_link_hash_table *htab;
4222 struct ppc_link_hash_entry *fdh;
4224 if (eh->elf.root.type == bfd_link_hash_indirect)
4227 if (eh->elf.root.type == bfd_link_hash_warning)
4228 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
4230 if (eh->elf.root.root.string[0] != '.')
4233 htab = ppc_hash_table (info);
4234 fdh = get_fdh (eh, htab);
4236 && !info->relocatable
4237 && (eh->elf.root.type == bfd_link_hash_undefined
4238 || eh->elf.root.type == bfd_link_hash_undefweak)
4239 && eh->elf.ref_regular)
4241 /* Make an undefweak function descriptor sym, which is enough to
4242 pull in an --as-needed shared lib, but won't cause link
4243 errors. Archives are handled elsewhere. */
4244 fdh = make_fdh (info, eh);
4248 fdh->elf.ref_regular = 1;
4250 else if (fdh != NULL)
4252 unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1;
4253 unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1;
4254 if (entry_vis < descr_vis)
4255 fdh->elf.other += entry_vis - descr_vis;
4256 else if (entry_vis > descr_vis)
4257 eh->elf.other += descr_vis - entry_vis;
4259 if ((fdh->elf.root.type == bfd_link_hash_defined
4260 || fdh->elf.root.type == bfd_link_hash_defweak)
4261 && eh->elf.root.type == bfd_link_hash_undefined)
4263 eh->elf.root.type = bfd_link_hash_undefweak;
4264 eh->was_undefined = 1;
4265 htab->twiddled_syms = 1;
4272 /* Process list of dot-symbols we made in link_hash_newfunc. */
4275 ppc64_elf_check_directives (bfd *ibfd, struct bfd_link_info *info)
4277 struct ppc_link_hash_table *htab;
4278 struct ppc_link_hash_entry **p, *eh;
4280 htab = ppc_hash_table (info);
4281 if (!is_ppc64_elf_target (htab->elf.root.creator))
4284 if (is_ppc64_elf_target (ibfd->xvec))
4286 p = &htab->dot_syms;
4287 while ((eh = *p) != NULL)
4290 if (!add_symbol_adjust (eh, info))
4292 p = &eh->u.next_dot_sym;
4296 /* Clear the list for non-ppc64 input files. */
4297 p = &htab->dot_syms;
4298 while ((eh = *p) != NULL)
4301 p = &eh->u.next_dot_sym;
4304 /* We need to fix the undefs list for any syms we have twiddled to
4306 if (htab->twiddled_syms)
4308 bfd_link_repair_undef_list (&htab->elf.root);
4309 htab->twiddled_syms = 0;
4314 /* Undo hash table changes when an --as-needed input file is determined
4315 not to be needed. */
4318 ppc64_elf_as_needed_cleanup (bfd *ibfd ATTRIBUTE_UNUSED,
4319 struct bfd_link_info *info)
4321 ppc_hash_table (info)->dot_syms = NULL;
4326 update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
4327 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
4329 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
4330 char *local_got_tls_masks;
4332 if (local_got_ents == NULL)
4334 bfd_size_type size = symtab_hdr->sh_info;
4336 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
4337 local_got_ents = bfd_zalloc (abfd, size);
4338 if (local_got_ents == NULL)
4340 elf_local_got_ents (abfd) = local_got_ents;
4343 if ((tls_type & TLS_EXPLICIT) == 0)
4345 struct got_entry *ent;
4347 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
4348 if (ent->addend == r_addend
4349 && ent->owner == abfd
4350 && ent->tls_type == tls_type)
4354 bfd_size_type amt = sizeof (*ent);
4355 ent = bfd_alloc (abfd, amt);
4358 ent->next = local_got_ents[r_symndx];
4359 ent->addend = r_addend;
4361 ent->tls_type = tls_type;
4362 ent->got.refcount = 0;
4363 local_got_ents[r_symndx] = ent;
4365 ent->got.refcount += 1;
4368 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
4369 local_got_tls_masks[r_symndx] |= tls_type;
4374 update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
4376 struct plt_entry *ent;
4378 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
4379 if (ent->addend == addend)
4383 bfd_size_type amt = sizeof (*ent);
4384 ent = bfd_alloc (abfd, amt);
4387 ent->next = eh->elf.plt.plist;
4388 ent->addend = addend;
4389 ent->plt.refcount = 0;
4390 eh->elf.plt.plist = ent;
4392 ent->plt.refcount += 1;
4393 eh->elf.needs_plt = 1;
4394 if (eh->elf.root.root.string[0] == '.'
4395 && eh->elf.root.root.string[1] != '\0')
4400 /* Look through the relocs for a section during the first phase, and
4401 calculate needed space in the global offset table, procedure
4402 linkage table, and dynamic reloc sections. */
4405 ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
4406 asection *sec, const Elf_Internal_Rela *relocs)
4408 struct ppc_link_hash_table *htab;
4409 Elf_Internal_Shdr *symtab_hdr;
4410 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4411 const Elf_Internal_Rela *rel;
4412 const Elf_Internal_Rela *rel_end;
4414 asection **opd_sym_map;
4416 if (info->relocatable)
4419 /* Don't do anything special with non-loaded, non-alloced sections.
4420 In particular, any relocs in such sections should not affect GOT
4421 and PLT reference counting (ie. we don't allow them to create GOT
4422 or PLT entries), there's no possibility or desire to optimize TLS
4423 relocs, and there's not much point in propagating relocs to shared
4424 libs that the dynamic linker won't relocate. */
4425 if ((sec->flags & SEC_ALLOC) == 0)
4428 htab = ppc_hash_table (info);
4429 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4431 sym_hashes = elf_sym_hashes (abfd);
4432 sym_hashes_end = (sym_hashes
4433 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
4434 - symtab_hdr->sh_info);
4438 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
4440 /* Garbage collection needs some extra help with .opd sections.
4441 We don't want to necessarily keep everything referenced by
4442 relocs in .opd, as that would keep all functions. Instead,
4443 if we reference an .opd symbol (a function descriptor), we
4444 want to keep the function code symbol's section. This is
4445 easy for global symbols, but for local syms we need to keep
4446 information about the associated function section. */
4449 amt = sec->size * sizeof (*opd_sym_map) / 8;
4450 opd_sym_map = bfd_zalloc (abfd, amt);
4451 if (opd_sym_map == NULL)
4453 ppc64_elf_section_data (sec)->u.opd.func_sec = opd_sym_map;
4454 BFD_ASSERT (ppc64_elf_section_data (sec)->sec_type == sec_normal);
4455 ppc64_elf_section_data (sec)->sec_type = sec_opd;
4458 if (htab->sfpr == NULL
4459 && !create_linkage_sections (htab->elf.dynobj, info))
4462 rel_end = relocs + sec->reloc_count;
4463 for (rel = relocs; rel < rel_end; rel++)
4465 unsigned long r_symndx;
4466 struct elf_link_hash_entry *h;
4467 enum elf_ppc64_reloc_type r_type;
4469 struct _ppc64_elf_section_data *ppc64_sec;
4471 r_symndx = ELF64_R_SYM (rel->r_info);
4472 if (r_symndx < symtab_hdr->sh_info)
4476 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4477 while (h->root.type == bfd_link_hash_indirect
4478 || h->root.type == bfd_link_hash_warning)
4479 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4482 r_type = ELF64_R_TYPE (rel->r_info);
4485 case R_PPC64_GOT_TLSLD16:
4486 case R_PPC64_GOT_TLSLD16_LO:
4487 case R_PPC64_GOT_TLSLD16_HI:
4488 case R_PPC64_GOT_TLSLD16_HA:
4489 tls_type = TLS_TLS | TLS_LD;
4492 case R_PPC64_GOT_TLSGD16:
4493 case R_PPC64_GOT_TLSGD16_LO:
4494 case R_PPC64_GOT_TLSGD16_HI:
4495 case R_PPC64_GOT_TLSGD16_HA:
4496 tls_type = TLS_TLS | TLS_GD;
4499 case R_PPC64_GOT_TPREL16_DS:
4500 case R_PPC64_GOT_TPREL16_LO_DS:
4501 case R_PPC64_GOT_TPREL16_HI:
4502 case R_PPC64_GOT_TPREL16_HA:
4504 info->flags |= DF_STATIC_TLS;
4505 tls_type = TLS_TLS | TLS_TPREL;
4508 case R_PPC64_GOT_DTPREL16_DS:
4509 case R_PPC64_GOT_DTPREL16_LO_DS:
4510 case R_PPC64_GOT_DTPREL16_HI:
4511 case R_PPC64_GOT_DTPREL16_HA:
4512 tls_type = TLS_TLS | TLS_DTPREL;
4514 sec->has_tls_reloc = 1;
4518 case R_PPC64_GOT16_DS:
4519 case R_PPC64_GOT16_HA:
4520 case R_PPC64_GOT16_HI:
4521 case R_PPC64_GOT16_LO:
4522 case R_PPC64_GOT16_LO_DS:
4523 /* This symbol requires a global offset table entry. */
4524 sec->has_toc_reloc = 1;
4525 if (ppc64_elf_tdata (abfd)->got == NULL
4526 && !create_got_section (abfd, info))
4531 struct ppc_link_hash_entry *eh;
4532 struct got_entry *ent;
4534 eh = (struct ppc_link_hash_entry *) h;
4535 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
4536 if (ent->addend == rel->r_addend
4537 && ent->owner == abfd
4538 && ent->tls_type == tls_type)
4542 bfd_size_type amt = sizeof (*ent);
4543 ent = bfd_alloc (abfd, amt);
4546 ent->next = eh->elf.got.glist;
4547 ent->addend = rel->r_addend;
4549 ent->tls_type = tls_type;
4550 ent->got.refcount = 0;
4551 eh->elf.got.glist = ent;
4553 ent->got.refcount += 1;
4554 eh->tls_mask |= tls_type;
4557 /* This is a global offset table entry for a local symbol. */
4558 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4559 rel->r_addend, tls_type))
4563 case R_PPC64_PLT16_HA:
4564 case R_PPC64_PLT16_HI:
4565 case R_PPC64_PLT16_LO:
4568 /* This symbol requires a procedure linkage table entry. We
4569 actually build the entry in adjust_dynamic_symbol,
4570 because this might be a case of linking PIC code without
4571 linking in any dynamic objects, in which case we don't
4572 need to generate a procedure linkage table after all. */
4575 /* It does not make sense to have a procedure linkage
4576 table entry for a local symbol. */
4577 bfd_set_error (bfd_error_bad_value);
4581 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
4586 /* The following relocations don't need to propagate the
4587 relocation if linking a shared object since they are
4588 section relative. */
4589 case R_PPC64_SECTOFF:
4590 case R_PPC64_SECTOFF_LO:
4591 case R_PPC64_SECTOFF_HI:
4592 case R_PPC64_SECTOFF_HA:
4593 case R_PPC64_SECTOFF_DS:
4594 case R_PPC64_SECTOFF_LO_DS:
4595 case R_PPC64_DTPREL16:
4596 case R_PPC64_DTPREL16_LO:
4597 case R_PPC64_DTPREL16_HI:
4598 case R_PPC64_DTPREL16_HA:
4599 case R_PPC64_DTPREL16_DS:
4600 case R_PPC64_DTPREL16_LO_DS:
4601 case R_PPC64_DTPREL16_HIGHER:
4602 case R_PPC64_DTPREL16_HIGHERA:
4603 case R_PPC64_DTPREL16_HIGHEST:
4604 case R_PPC64_DTPREL16_HIGHESTA:
4609 case R_PPC64_TOC16_LO:
4610 case R_PPC64_TOC16_HI:
4611 case R_PPC64_TOC16_HA:
4612 case R_PPC64_TOC16_DS:
4613 case R_PPC64_TOC16_LO_DS:
4614 sec->has_toc_reloc = 1;
4617 /* This relocation describes the C++ object vtable hierarchy.
4618 Reconstruct it for later use during GC. */
4619 case R_PPC64_GNU_VTINHERIT:
4620 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4624 /* This relocation describes which C++ vtable entries are actually
4625 used. Record for later use during GC. */
4626 case R_PPC64_GNU_VTENTRY:
4627 BFD_ASSERT (h != NULL);
4629 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4634 case R_PPC64_REL14_BRTAKEN:
4635 case R_PPC64_REL14_BRNTAKEN:
4637 asection *dest = NULL;
4639 /* Heuristic: If jumping outside our section, chances are
4640 we are going to need a stub. */
4643 /* If the sym is weak it may be overridden later, so
4644 don't assume we know where a weak sym lives. */
4645 if (h->root.type == bfd_link_hash_defined)
4646 dest = h->root.u.def.section;
4649 dest = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4652 ppc64_elf_section_data (sec)->has_14bit_branch = 1;
4659 /* We may need a .plt entry if the function this reloc
4660 refers to is in a shared lib. */
4661 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
4664 if (h == &htab->tls_get_addr->elf
4665 || h == &htab->tls_get_addr_fd->elf)
4666 sec->has_tls_reloc = 1;
4667 else if (htab->tls_get_addr == NULL
4668 && CONST_STRNEQ (h->root.root.string, ".__tls_get_addr")
4669 && (h->root.root.string[15] == 0
4670 || h->root.root.string[15] == '@'))
4672 htab->tls_get_addr = (struct ppc_link_hash_entry *) h;
4673 sec->has_tls_reloc = 1;
4675 else if (htab->tls_get_addr_fd == NULL
4676 && CONST_STRNEQ (h->root.root.string, "__tls_get_addr")
4677 && (h->root.root.string[14] == 0
4678 || h->root.root.string[14] == '@'))
4680 htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) h;
4681 sec->has_tls_reloc = 1;
4686 case R_PPC64_TPREL64:
4687 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
4689 info->flags |= DF_STATIC_TLS;
4692 case R_PPC64_DTPMOD64:
4693 if (rel + 1 < rel_end
4694 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
4695 && rel[1].r_offset == rel->r_offset + 8)
4696 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
4698 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
4701 case R_PPC64_DTPREL64:
4702 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
4704 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
4705 && rel[-1].r_offset == rel->r_offset - 8)
4706 /* This is the second reloc of a dtpmod, dtprel pair.
4707 Don't mark with TLS_DTPREL. */
4711 sec->has_tls_reloc = 1;
4714 struct ppc_link_hash_entry *eh;
4715 eh = (struct ppc_link_hash_entry *) h;
4716 eh->tls_mask |= tls_type;
4719 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4720 rel->r_addend, tls_type))
4723 ppc64_sec = ppc64_elf_section_data (sec);
4724 if (ppc64_sec->sec_type != sec_toc)
4726 /* One extra to simplify get_tls_mask. */
4727 bfd_size_type amt = sec->size * sizeof (unsigned) / 8 + 1;
4728 ppc64_sec->u.t_symndx = bfd_zalloc (abfd, amt);
4729 if (ppc64_sec->u.t_symndx == NULL)
4731 BFD_ASSERT (ppc64_sec->sec_type == sec_normal);
4732 ppc64_sec->sec_type = sec_toc;
4734 BFD_ASSERT (rel->r_offset % 8 == 0);
4735 ppc64_sec->u.t_symndx[rel->r_offset / 8] = r_symndx;
4737 /* Mark the second slot of a GD or LD entry.
4738 -1 to indicate GD and -2 to indicate LD. */
4739 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
4740 ppc64_sec->u.t_symndx[rel->r_offset / 8 + 1] = -1;
4741 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
4742 ppc64_sec->u.t_symndx[rel->r_offset / 8 + 1] = -2;
4745 case R_PPC64_TPREL16:
4746 case R_PPC64_TPREL16_LO:
4747 case R_PPC64_TPREL16_HI:
4748 case R_PPC64_TPREL16_HA:
4749 case R_PPC64_TPREL16_DS:
4750 case R_PPC64_TPREL16_LO_DS:
4751 case R_PPC64_TPREL16_HIGHER:
4752 case R_PPC64_TPREL16_HIGHERA:
4753 case R_PPC64_TPREL16_HIGHEST:
4754 case R_PPC64_TPREL16_HIGHESTA:
4757 info->flags |= DF_STATIC_TLS;
4762 case R_PPC64_ADDR64:
4763 if (opd_sym_map != NULL
4764 && rel + 1 < rel_end
4765 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
4769 if (h->root.root.string[0] == '.'
4770 && h->root.root.string[1] != 0
4771 && get_fdh ((struct ppc_link_hash_entry *) h, htab))
4774 ((struct ppc_link_hash_entry *) h)->is_func = 1;
4780 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
4785 opd_sym_map[rel->r_offset / 8] = s;
4793 case R_PPC64_ADDR14:
4794 case R_PPC64_ADDR14_BRNTAKEN:
4795 case R_PPC64_ADDR14_BRTAKEN:
4796 case R_PPC64_ADDR16:
4797 case R_PPC64_ADDR16_DS:
4798 case R_PPC64_ADDR16_HA:
4799 case R_PPC64_ADDR16_HI:
4800 case R_PPC64_ADDR16_HIGHER:
4801 case R_PPC64_ADDR16_HIGHERA:
4802 case R_PPC64_ADDR16_HIGHEST:
4803 case R_PPC64_ADDR16_HIGHESTA:
4804 case R_PPC64_ADDR16_LO:
4805 case R_PPC64_ADDR16_LO_DS:
4806 case R_PPC64_ADDR24:
4807 case R_PPC64_ADDR32:
4808 case R_PPC64_UADDR16:
4809 case R_PPC64_UADDR32:
4810 case R_PPC64_UADDR64:
4812 if (h != NULL && !info->shared)
4813 /* We may need a copy reloc. */
4816 /* Don't propagate .opd relocs. */
4817 if (NO_OPD_RELOCS && opd_sym_map != NULL)
4820 /* If we are creating a shared library, and this is a reloc
4821 against a global symbol, or a non PC relative reloc
4822 against a local symbol, then we need to copy the reloc
4823 into the shared library. However, if we are linking with
4824 -Bsymbolic, we do not need to copy a reloc against a
4825 global symbol which is defined in an object we are
4826 including in the link (i.e., DEF_REGULAR is set). At
4827 this point we have not seen all the input files, so it is
4828 possible that DEF_REGULAR is not set now but will be set
4829 later (it is never cleared). In case of a weak definition,
4830 DEF_REGULAR may be cleared later by a strong definition in
4831 a shared library. We account for that possibility below by
4832 storing information in the dyn_relocs field of the hash
4833 table entry. A similar situation occurs when creating
4834 shared libraries and symbol visibility changes render the
4837 If on the other hand, we are creating an executable, we
4838 may need to keep relocations for symbols satisfied by a
4839 dynamic library if we manage to avoid copy relocs for the
4843 && (MUST_BE_DYN_RELOC (r_type)
4845 && (! info->symbolic
4846 || h->root.type == bfd_link_hash_defweak
4847 || !h->def_regular))))
4848 || (ELIMINATE_COPY_RELOCS
4851 && (h->root.type == bfd_link_hash_defweak
4852 || !h->def_regular)))
4854 struct ppc_dyn_relocs *p;
4855 struct ppc_dyn_relocs **head;
4857 /* We must copy these reloc types into the output file.
4858 Create a reloc section in dynobj and make room for
4865 name = (bfd_elf_string_from_elf_section
4867 elf_elfheader (abfd)->e_shstrndx,
4868 elf_section_data (sec)->rel_hdr.sh_name));
4872 if (! CONST_STRNEQ (name, ".rela")
4873 || strcmp (bfd_get_section_name (abfd, sec),
4876 (*_bfd_error_handler)
4877 (_("%B: bad relocation section name `%s\'"),
4879 bfd_set_error (bfd_error_bad_value);
4882 dynobj = htab->elf.dynobj;
4883 sreloc = bfd_get_section_by_name (dynobj, name);
4888 flags = (SEC_HAS_CONTENTS | SEC_READONLY
4889 | SEC_IN_MEMORY | SEC_LINKER_CREATED
4890 | SEC_ALLOC | SEC_LOAD);
4891 sreloc = bfd_make_section_with_flags (dynobj,
4895 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
4898 elf_section_data (sec)->sreloc = sreloc;
4901 /* If this is a global symbol, we count the number of
4902 relocations we need for this symbol. */
4905 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
4909 /* Track dynamic relocs needed for local syms too.
4910 We really need local syms available to do this
4916 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4921 vpp = &elf_section_data (s)->local_dynrel;
4922 head = (struct ppc_dyn_relocs **) vpp;
4926 if (p == NULL || p->sec != sec)
4928 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4939 if (!MUST_BE_DYN_RELOC (r_type))
4952 /* OFFSET in OPD_SEC specifies a function descriptor. Return the address
4953 of the code entry point, and its section. */
4956 opd_entry_value (asection *opd_sec,
4958 asection **code_sec,
4961 bfd *opd_bfd = opd_sec->owner;
4962 Elf_Internal_Rela *relocs;
4963 Elf_Internal_Rela *lo, *hi, *look;
4966 /* No relocs implies we are linking a --just-symbols object. */
4967 if (opd_sec->reloc_count == 0)
4971 if (!bfd_get_section_contents (opd_bfd, opd_sec, &val, offset, 8))
4972 return (bfd_vma) -1;
4974 if (code_sec != NULL)
4976 asection *sec, *likely = NULL;
4977 for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
4979 && (sec->flags & SEC_LOAD) != 0
4980 && (sec->flags & SEC_ALLOC) != 0)
4985 if (code_off != NULL)
4986 *code_off = val - likely->vma;
4992 relocs = ppc64_elf_tdata (opd_bfd)->opd_relocs;
4994 relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
4996 /* Go find the opd reloc at the sym address. */
4998 BFD_ASSERT (lo != NULL);
4999 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
5003 look = lo + (hi - lo) / 2;
5004 if (look->r_offset < offset)
5006 else if (look->r_offset > offset)
5010 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (opd_bfd)->symtab_hdr;
5011 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
5012 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
5014 unsigned long symndx = ELF64_R_SYM (look->r_info);
5017 if (symndx < symtab_hdr->sh_info)
5019 Elf_Internal_Sym *sym;
5021 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
5024 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
5025 symtab_hdr->sh_info,
5026 0, NULL, NULL, NULL);
5029 symtab_hdr->contents = (bfd_byte *) sym;
5033 val = sym->st_value;
5035 if ((sym->st_shndx != SHN_UNDEF
5036 && sym->st_shndx < SHN_LORESERVE)
5037 || sym->st_shndx > SHN_HIRESERVE)
5038 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
5039 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
5043 struct elf_link_hash_entry **sym_hashes;
5044 struct elf_link_hash_entry *rh;
5046 sym_hashes = elf_sym_hashes (opd_bfd);
5047 rh = sym_hashes[symndx - symtab_hdr->sh_info];
5048 while (rh->root.type == bfd_link_hash_indirect
5049 || rh->root.type == bfd_link_hash_warning)
5050 rh = ((struct elf_link_hash_entry *) rh->root.u.i.link);
5051 BFD_ASSERT (rh->root.type == bfd_link_hash_defined
5052 || rh->root.type == bfd_link_hash_defweak);
5053 val = rh->root.u.def.value;
5054 sec = rh->root.u.def.section;
5056 val += look->r_addend;
5057 if (code_off != NULL)
5059 if (code_sec != NULL)
5061 if (sec != NULL && sec->output_section != NULL)
5062 val += sec->output_section->vma + sec->output_offset;
5071 /* Mark all our entry sym sections, both opd and code section. */
5074 ppc64_elf_gc_keep (struct bfd_link_info *info)
5076 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5077 struct bfd_sym_chain *sym;
5079 for (sym = info->gc_sym_list; sym != NULL; sym = sym->next)
5081 struct ppc_link_hash_entry *eh;
5084 eh = (struct ppc_link_hash_entry *)
5085 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
5088 if (eh->elf.root.type != bfd_link_hash_defined
5089 && eh->elf.root.type != bfd_link_hash_defweak)
5092 if (eh->is_func_descriptor
5093 && (eh->oh->elf.root.type == bfd_link_hash_defined
5094 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5096 sec = eh->oh->elf.root.u.def.section;
5097 sec->flags |= SEC_KEEP;
5099 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5100 && opd_entry_value (eh->elf.root.u.def.section,
5101 eh->elf.root.u.def.value,
5102 &sec, NULL) != (bfd_vma) -1)
5103 sec->flags |= SEC_KEEP;
5105 sec = eh->elf.root.u.def.section;
5106 sec->flags |= SEC_KEEP;
5110 /* Mark sections containing dynamically referenced symbols. When
5111 building shared libraries, we must assume that any visible symbol is
5115 ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf)
5117 struct bfd_link_info *info = (struct bfd_link_info *) inf;
5118 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
5120 if (eh->elf.root.type == bfd_link_hash_warning)
5121 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
5123 /* Dynamic linking info is on the func descriptor sym. */
5125 && eh->oh->is_func_descriptor
5126 && (eh->oh->elf.root.type == bfd_link_hash_defined
5127 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5130 if ((eh->elf.root.type == bfd_link_hash_defined
5131 || eh->elf.root.type == bfd_link_hash_defweak)
5132 && (eh->elf.ref_dynamic
5133 || (!info->executable
5134 && eh->elf.def_regular
5135 && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL
5136 && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN)))
5140 eh->elf.root.u.def.section->flags |= SEC_KEEP;
5142 /* Function descriptor syms cause the associated
5143 function code sym section to be marked. */
5144 if (eh->is_func_descriptor
5145 && (eh->oh->elf.root.type == bfd_link_hash_defined
5146 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5147 eh->oh->elf.root.u.def.section->flags |= SEC_KEEP;
5148 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5149 && opd_entry_value (eh->elf.root.u.def.section,
5150 eh->elf.root.u.def.value,
5151 &code_sec, NULL) != (bfd_vma) -1)
5152 code_sec->flags |= SEC_KEEP;
5158 /* Return the section that should be marked against GC for a given
5162 ppc64_elf_gc_mark_hook (asection *sec,
5163 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5164 Elf_Internal_Rela *rel,
5165 struct elf_link_hash_entry *h,
5166 Elf_Internal_Sym *sym)
5170 /* Syms return NULL if we're marking .opd, so we avoid marking all
5171 function sections, as all functions are referenced in .opd. */
5173 if (get_opd_info (sec) != NULL)
5178 enum elf_ppc64_reloc_type r_type;
5179 struct ppc_link_hash_entry *eh;
5181 r_type = ELF64_R_TYPE (rel->r_info);
5184 case R_PPC64_GNU_VTINHERIT:
5185 case R_PPC64_GNU_VTENTRY:
5189 switch (h->root.type)
5191 case bfd_link_hash_defined:
5192 case bfd_link_hash_defweak:
5193 eh = (struct ppc_link_hash_entry *) h;
5195 && eh->oh->is_func_descriptor
5196 && (eh->oh->elf.root.type == bfd_link_hash_defined
5197 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5200 /* Function descriptor syms cause the associated
5201 function code sym section to be marked. */
5202 if (eh->is_func_descriptor
5203 && (eh->oh->elf.root.type == bfd_link_hash_defined
5204 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5206 /* They also mark their opd section. */
5207 eh->elf.root.u.def.section->gc_mark = 1;
5209 rsec = eh->oh->elf.root.u.def.section;
5211 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5212 && opd_entry_value (eh->elf.root.u.def.section,
5213 eh->elf.root.u.def.value,
5214 &rsec, NULL) != (bfd_vma) -1)
5215 eh->elf.root.u.def.section->gc_mark = 1;
5217 rsec = h->root.u.def.section;
5220 case bfd_link_hash_common:
5221 rsec = h->root.u.c.p->section;
5231 struct _opd_sec_data *opd;
5233 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
5234 opd = get_opd_info (rsec);
5235 if (opd != NULL && opd->func_sec != NULL)
5239 rsec = opd->func_sec[(sym->st_value + rel->r_addend) / 8];
5246 /* Update the .got, .plt. and dynamic reloc reference counts for the
5247 section being removed. */
5250 ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
5251 asection *sec, const Elf_Internal_Rela *relocs)
5253 struct ppc_link_hash_table *htab;
5254 Elf_Internal_Shdr *symtab_hdr;
5255 struct elf_link_hash_entry **sym_hashes;
5256 struct got_entry **local_got_ents;
5257 const Elf_Internal_Rela *rel, *relend;
5259 if (info->relocatable)
5262 if ((sec->flags & SEC_ALLOC) == 0)
5265 elf_section_data (sec)->local_dynrel = NULL;
5267 htab = ppc_hash_table (info);
5268 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5269 sym_hashes = elf_sym_hashes (abfd);
5270 local_got_ents = elf_local_got_ents (abfd);
5272 relend = relocs + sec->reloc_count;
5273 for (rel = relocs; rel < relend; rel++)
5275 unsigned long r_symndx;
5276 enum elf_ppc64_reloc_type r_type;
5277 struct elf_link_hash_entry *h = NULL;
5280 r_symndx = ELF64_R_SYM (rel->r_info);
5281 r_type = ELF64_R_TYPE (rel->r_info);
5282 if (r_symndx >= symtab_hdr->sh_info)
5284 struct ppc_link_hash_entry *eh;
5285 struct ppc_dyn_relocs **pp;
5286 struct ppc_dyn_relocs *p;
5288 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5289 while (h->root.type == bfd_link_hash_indirect
5290 || h->root.type == bfd_link_hash_warning)
5291 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5292 eh = (struct ppc_link_hash_entry *) h;
5294 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5297 /* Everything must go for SEC. */
5305 case R_PPC64_GOT_TLSLD16:
5306 case R_PPC64_GOT_TLSLD16_LO:
5307 case R_PPC64_GOT_TLSLD16_HI:
5308 case R_PPC64_GOT_TLSLD16_HA:
5309 tls_type = TLS_TLS | TLS_LD;
5312 case R_PPC64_GOT_TLSGD16:
5313 case R_PPC64_GOT_TLSGD16_LO:
5314 case R_PPC64_GOT_TLSGD16_HI:
5315 case R_PPC64_GOT_TLSGD16_HA:
5316 tls_type = TLS_TLS | TLS_GD;
5319 case R_PPC64_GOT_TPREL16_DS:
5320 case R_PPC64_GOT_TPREL16_LO_DS:
5321 case R_PPC64_GOT_TPREL16_HI:
5322 case R_PPC64_GOT_TPREL16_HA:
5323 tls_type = TLS_TLS | TLS_TPREL;
5326 case R_PPC64_GOT_DTPREL16_DS:
5327 case R_PPC64_GOT_DTPREL16_LO_DS:
5328 case R_PPC64_GOT_DTPREL16_HI:
5329 case R_PPC64_GOT_DTPREL16_HA:
5330 tls_type = TLS_TLS | TLS_DTPREL;
5334 case R_PPC64_GOT16_DS:
5335 case R_PPC64_GOT16_HA:
5336 case R_PPC64_GOT16_HI:
5337 case R_PPC64_GOT16_LO:
5338 case R_PPC64_GOT16_LO_DS:
5341 struct got_entry *ent;
5346 ent = local_got_ents[r_symndx];
5348 for (; ent != NULL; ent = ent->next)
5349 if (ent->addend == rel->r_addend
5350 && ent->owner == abfd
5351 && ent->tls_type == tls_type)
5355 if (ent->got.refcount > 0)
5356 ent->got.refcount -= 1;
5360 case R_PPC64_PLT16_HA:
5361 case R_PPC64_PLT16_HI:
5362 case R_PPC64_PLT16_LO:
5366 case R_PPC64_REL14_BRNTAKEN:
5367 case R_PPC64_REL14_BRTAKEN:
5371 struct plt_entry *ent;
5373 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5374 if (ent->addend == rel->r_addend)
5378 if (ent->plt.refcount > 0)
5379 ent->plt.refcount -= 1;
5390 /* The maximum size of .sfpr. */
5391 #define SFPR_MAX (218*4)
5393 struct sfpr_def_parms
5395 const char name[12];
5396 unsigned char lo, hi;
5397 bfd_byte * (*write_ent) (bfd *, bfd_byte *, int);
5398 bfd_byte * (*write_tail) (bfd *, bfd_byte *, int);
5401 /* Auto-generate _save*, _rest* functions in .sfpr. */
5404 sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm)
5406 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5408 size_t len = strlen (parm->name);
5409 bfd_boolean writing = FALSE;
5412 memcpy (sym, parm->name, len);
5415 for (i = parm->lo; i <= parm->hi; i++)
5417 struct elf_link_hash_entry *h;
5419 sym[len + 0] = i / 10 + '0';
5420 sym[len + 1] = i % 10 + '0';
5421 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
5425 h->root.type = bfd_link_hash_defined;
5426 h->root.u.def.section = htab->sfpr;
5427 h->root.u.def.value = htab->sfpr->size;
5430 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
5432 if (htab->sfpr->contents == NULL)
5434 htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX);
5435 if (htab->sfpr->contents == NULL)
5441 bfd_byte *p = htab->sfpr->contents + htab->sfpr->size;
5443 p = (*parm->write_ent) (htab->elf.dynobj, p, i);
5445 p = (*parm->write_tail) (htab->elf.dynobj, p, i);
5446 htab->sfpr->size = p - htab->sfpr->contents;
5454 savegpr0 (bfd *abfd, bfd_byte *p, int r)
5456 bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5461 savegpr0_tail (bfd *abfd, bfd_byte *p, int r)
5463 p = savegpr0 (abfd, p, r);
5464 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
5466 bfd_put_32 (abfd, BLR, p);
5471 restgpr0 (bfd *abfd, bfd_byte *p, int r)
5473 bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5478 restgpr0_tail (bfd *abfd, bfd_byte *p, int r)
5480 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
5482 p = restgpr0 (abfd, p, r);
5483 bfd_put_32 (abfd, MTLR_R0, p);
5487 p = restgpr0 (abfd, p, 30);
5488 p = restgpr0 (abfd, p, 31);
5490 bfd_put_32 (abfd, BLR, p);
5495 savegpr1 (bfd *abfd, bfd_byte *p, int r)
5497 bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5502 savegpr1_tail (bfd *abfd, bfd_byte *p, int r)
5504 p = savegpr1 (abfd, p, r);
5505 bfd_put_32 (abfd, BLR, p);
5510 restgpr1 (bfd *abfd, bfd_byte *p, int r)
5512 bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5517 restgpr1_tail (bfd *abfd, bfd_byte *p, int r)
5519 p = restgpr1 (abfd, p, r);
5520 bfd_put_32 (abfd, BLR, p);
5525 savefpr (bfd *abfd, bfd_byte *p, int r)
5527 bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5532 savefpr0_tail (bfd *abfd, bfd_byte *p, int r)
5534 p = savefpr (abfd, p, r);
5535 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
5537 bfd_put_32 (abfd, BLR, p);
5542 restfpr (bfd *abfd, bfd_byte *p, int r)
5544 bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5549 restfpr0_tail (bfd *abfd, bfd_byte *p, int r)
5551 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
5553 p = restfpr (abfd, p, r);
5554 bfd_put_32 (abfd, MTLR_R0, p);
5558 p = restfpr (abfd, p, 30);
5559 p = restfpr (abfd, p, 31);
5561 bfd_put_32 (abfd, BLR, p);
5566 savefpr1_tail (bfd *abfd, bfd_byte *p, int r)
5568 p = savefpr (abfd, p, r);
5569 bfd_put_32 (abfd, BLR, p);
5574 restfpr1_tail (bfd *abfd, bfd_byte *p, int r)
5576 p = restfpr (abfd, p, r);
5577 bfd_put_32 (abfd, BLR, p);
5582 savevr (bfd *abfd, bfd_byte *p, int r)
5584 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
5586 bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p);
5591 savevr_tail (bfd *abfd, bfd_byte *p, int r)
5593 p = savevr (abfd, p, r);
5594 bfd_put_32 (abfd, BLR, p);
5599 restvr (bfd *abfd, bfd_byte *p, int r)
5601 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
5603 bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p);
5608 restvr_tail (bfd *abfd, bfd_byte *p, int r)
5610 p = restvr (abfd, p, r);
5611 bfd_put_32 (abfd, BLR, p);
5615 /* Called via elf_link_hash_traverse to transfer dynamic linking
5616 information on function code symbol entries to their corresponding
5617 function descriptor symbol entries. */
5620 func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5622 struct bfd_link_info *info;
5623 struct ppc_link_hash_table *htab;
5624 struct plt_entry *ent;
5625 struct ppc_link_hash_entry *fh;
5626 struct ppc_link_hash_entry *fdh;
5627 bfd_boolean force_local;
5629 fh = (struct ppc_link_hash_entry *) h;
5630 if (fh->elf.root.type == bfd_link_hash_indirect)
5633 if (fh->elf.root.type == bfd_link_hash_warning)
5634 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
5637 htab = ppc_hash_table (info);
5639 /* Resolve undefined references to dot-symbols as the value
5640 in the function descriptor, if we have one in a regular object.
5641 This is to satisfy cases like ".quad .foo". Calls to functions
5642 in dynamic objects are handled elsewhere. */
5643 if (fh->elf.root.type == bfd_link_hash_undefweak
5644 && fh->was_undefined
5645 && (fh->oh->elf.root.type == bfd_link_hash_defined
5646 || fh->oh->elf.root.type == bfd_link_hash_defweak)
5647 && get_opd_info (fh->oh->elf.root.u.def.section) != NULL
5648 && opd_entry_value (fh->oh->elf.root.u.def.section,
5649 fh->oh->elf.root.u.def.value,
5650 &fh->elf.root.u.def.section,
5651 &fh->elf.root.u.def.value) != (bfd_vma) -1)
5653 fh->elf.root.type = fh->oh->elf.root.type;
5654 fh->elf.forced_local = 1;
5655 fh->elf.def_regular = fh->oh->elf.def_regular;
5656 fh->elf.def_dynamic = fh->oh->elf.def_dynamic;
5659 /* If this is a function code symbol, transfer dynamic linking
5660 information to the function descriptor symbol. */
5664 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
5665 if (ent->plt.refcount > 0)
5668 || fh->elf.root.root.string[0] != '.'
5669 || fh->elf.root.root.string[1] == '\0')
5672 /* Find the corresponding function descriptor symbol. Create it
5673 as undefined if necessary. */
5675 fdh = get_fdh (fh, htab);
5677 while (fdh->elf.root.type == bfd_link_hash_indirect
5678 || fdh->elf.root.type == bfd_link_hash_warning)
5679 fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link;
5683 && (fh->elf.root.type == bfd_link_hash_undefined
5684 || fh->elf.root.type == bfd_link_hash_undefweak))
5686 fdh = make_fdh (info, fh);
5691 /* Fake function descriptors are made undefweak. If the function
5692 code symbol is strong undefined, make the fake sym the same.
5693 If the function code symbol is defined, then force the fake
5694 descriptor local; We can't support overriding of symbols in a
5695 shared library on a fake descriptor. */
5699 && fdh->elf.root.type == bfd_link_hash_undefweak)
5701 if (fh->elf.root.type == bfd_link_hash_undefined)
5703 fdh->elf.root.type = bfd_link_hash_undefined;
5704 bfd_link_add_undef (&htab->elf.root, &fdh->elf.root);
5706 else if (fh->elf.root.type == bfd_link_hash_defined
5707 || fh->elf.root.type == bfd_link_hash_defweak)
5709 _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE);
5714 && !fdh->elf.forced_local
5716 || fdh->elf.def_dynamic
5717 || fdh->elf.ref_dynamic
5718 || (fdh->elf.root.type == bfd_link_hash_undefweak
5719 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
5721 if (fdh->elf.dynindx == -1)
5722 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
5724 fdh->elf.ref_regular |= fh->elf.ref_regular;
5725 fdh->elf.ref_dynamic |= fh->elf.ref_dynamic;
5726 fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak;
5727 fdh->elf.non_got_ref |= fh->elf.non_got_ref;
5728 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
5730 move_plt_plist (fh, fdh);
5731 fdh->elf.needs_plt = 1;
5733 fdh->is_func_descriptor = 1;
5738 /* Now that the info is on the function descriptor, clear the
5739 function code sym info. Any function code syms for which we
5740 don't have a definition in a regular file, we force local.
5741 This prevents a shared library from exporting syms that have
5742 been imported from another library. Function code syms that
5743 are really in the library we must leave global to prevent the
5744 linker dragging in a definition from a static library. */
5745 force_local = (!fh->elf.def_regular
5747 || !fdh->elf.def_regular
5748 || fdh->elf.forced_local);
5749 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
5754 /* Called near the start of bfd_elf_size_dynamic_sections. We use
5755 this hook to a) provide some gcc support functions, and b) transfer
5756 dynamic linking information gathered so far on function code symbol
5757 entries, to their corresponding function descriptor symbol entries. */
5760 ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
5761 struct bfd_link_info *info)
5763 struct ppc_link_hash_table *htab;
5765 const struct sfpr_def_parms funcs[] =
5767 { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail },
5768 { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail },
5769 { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail },
5770 { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail },
5771 { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail },
5772 { "_savefpr_", 14, 31, savefpr, savefpr0_tail },
5773 { "_restfpr_", 14, 29, restfpr, restfpr0_tail },
5774 { "_restfpr_", 30, 31, restfpr, restfpr0_tail },
5775 { "._savef", 14, 31, savefpr, savefpr1_tail },
5776 { "._restf", 14, 31, restfpr, restfpr1_tail },
5777 { "_savevr_", 20, 31, savevr, savevr_tail },
5778 { "_restvr_", 20, 31, restvr, restvr_tail }
5781 htab = ppc_hash_table (info);
5782 if (htab->sfpr == NULL)
5783 /* We don't have any relocs. */
5786 /* Provide any missing _save* and _rest* functions. */
5787 htab->sfpr->size = 0;
5788 for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++)
5789 if (!sfpr_define (info, &funcs[i]))
5792 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
5794 if (htab->sfpr->size == 0)
5795 htab->sfpr->flags |= SEC_EXCLUDE;
5800 /* Adjust a symbol defined by a dynamic object and referenced by a
5801 regular object. The current definition is in some section of the
5802 dynamic object, but we're not including those sections. We have to
5803 change the definition to something the rest of the link can
5807 ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5808 struct elf_link_hash_entry *h)
5810 struct ppc_link_hash_table *htab;
5813 htab = ppc_hash_table (info);
5815 /* Deal with function syms. */
5816 if (h->type == STT_FUNC
5819 /* Clear procedure linkage table information for any symbol that
5820 won't need a .plt entry. */
5821 struct plt_entry *ent;
5822 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5823 if (ent->plt.refcount > 0)
5826 || SYMBOL_CALLS_LOCAL (info, h)
5827 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5828 && h->root.type == bfd_link_hash_undefweak))
5830 h->plt.plist = NULL;
5835 h->plt.plist = NULL;
5837 /* If this is a weak symbol, and there is a real definition, the
5838 processor independent code will have arranged for us to see the
5839 real definition first, and we can just use the same value. */
5840 if (h->u.weakdef != NULL)
5842 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5843 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5844 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5845 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5846 if (ELIMINATE_COPY_RELOCS)
5847 h->non_got_ref = h->u.weakdef->non_got_ref;
5851 /* If we are creating a shared library, we must presume that the
5852 only references to the symbol are via the global offset table.
5853 For such cases we need not do anything here; the relocations will
5854 be handled correctly by relocate_section. */
5858 /* If there are no references to this symbol that do not use the
5859 GOT, we don't need to generate a copy reloc. */
5860 if (!h->non_got_ref)
5863 /* Don't generate a copy reloc for symbols defined in the executable. */
5864 if (!h->def_dynamic || !h->ref_regular || h->def_regular)
5867 if (ELIMINATE_COPY_RELOCS)
5869 struct ppc_link_hash_entry * eh;
5870 struct ppc_dyn_relocs *p;
5872 eh = (struct ppc_link_hash_entry *) h;
5873 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5875 s = p->sec->output_section;
5876 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5880 /* If we didn't find any dynamic relocs in read-only sections, then
5881 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
5889 if (h->plt.plist != NULL)
5891 /* We should never get here, but unfortunately there are versions
5892 of gcc out there that improperly (for this ABI) put initialized
5893 function pointers, vtable refs and suchlike in read-only
5894 sections. Allow them to proceed, but warn that this might
5895 break at runtime. */
5896 (*_bfd_error_handler)
5897 (_("copy reloc against `%s' requires lazy plt linking; "
5898 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
5899 h->root.root.string);
5902 /* This is a reference to a symbol defined by a dynamic object which
5903 is not a function. */
5907 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
5908 h->root.root.string);
5912 /* We must allocate the symbol in our .dynbss section, which will
5913 become part of the .bss section of the executable. There will be
5914 an entry for this symbol in the .dynsym section. The dynamic
5915 object will contain position independent code, so all references
5916 from the dynamic object to this symbol will go through the global
5917 offset table. The dynamic linker will use the .dynsym entry to
5918 determine the address it must put in the global offset table, so
5919 both the dynamic object and the regular object will refer to the
5920 same memory location for the variable. */
5922 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
5923 to copy the initial value out of the dynamic object and into the
5924 runtime process image. We need to remember the offset into the
5925 .rela.bss section we are going to use. */
5926 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5928 htab->relbss->size += sizeof (Elf64_External_Rela);
5934 return _bfd_elf_adjust_dynamic_copy (h, s);
5937 /* If given a function descriptor symbol, hide both the function code
5938 sym and the descriptor. */
5940 ppc64_elf_hide_symbol (struct bfd_link_info *info,
5941 struct elf_link_hash_entry *h,
5942 bfd_boolean force_local)
5944 struct ppc_link_hash_entry *eh;
5945 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
5947 eh = (struct ppc_link_hash_entry *) h;
5948 if (eh->is_func_descriptor)
5950 struct ppc_link_hash_entry *fh = eh->oh;
5955 struct ppc_link_hash_table *htab;
5958 /* We aren't supposed to use alloca in BFD because on
5959 systems which do not have alloca the version in libiberty
5960 calls xmalloc, which might cause the program to crash
5961 when it runs out of memory. This function doesn't have a
5962 return status, so there's no way to gracefully return an
5963 error. So cheat. We know that string[-1] can be safely
5964 accessed; It's either a string in an ELF string table,
5965 or allocated in an objalloc structure. */
5967 p = eh->elf.root.root.string - 1;
5970 htab = ppc_hash_table (info);
5971 fh = (struct ppc_link_hash_entry *)
5972 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
5975 /* Unfortunately, if it so happens that the string we were
5976 looking for was allocated immediately before this string,
5977 then we overwrote the string terminator. That's the only
5978 reason the lookup should fail. */
5981 q = eh->elf.root.root.string + strlen (eh->elf.root.root.string);
5982 while (q >= eh->elf.root.root.string && *q == *p)
5984 if (q < eh->elf.root.root.string && *p == '.')
5985 fh = (struct ppc_link_hash_entry *)
5986 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
5995 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
6000 get_sym_h (struct elf_link_hash_entry **hp,
6001 Elf_Internal_Sym **symp,
6004 Elf_Internal_Sym **locsymsp,
6005 unsigned long r_symndx,
6008 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
6010 if (r_symndx >= symtab_hdr->sh_info)
6012 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
6013 struct elf_link_hash_entry *h;
6015 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6016 while (h->root.type == bfd_link_hash_indirect
6017 || h->root.type == bfd_link_hash_warning)
6018 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6026 if (symsecp != NULL)
6028 asection *symsec = NULL;
6029 if (h->root.type == bfd_link_hash_defined
6030 || h->root.type == bfd_link_hash_defweak)
6031 symsec = h->root.u.def.section;
6035 if (tls_maskp != NULL)
6037 struct ppc_link_hash_entry *eh;
6039 eh = (struct ppc_link_hash_entry *) h;
6040 *tls_maskp = &eh->tls_mask;
6045 Elf_Internal_Sym *sym;
6046 Elf_Internal_Sym *locsyms = *locsymsp;
6048 if (locsyms == NULL)
6050 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
6051 if (locsyms == NULL)
6052 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
6053 symtab_hdr->sh_info,
6054 0, NULL, NULL, NULL);
6055 if (locsyms == NULL)
6057 *locsymsp = locsyms;
6059 sym = locsyms + r_symndx;
6067 if (symsecp != NULL)
6069 asection *symsec = NULL;
6070 if ((sym->st_shndx != SHN_UNDEF
6071 && sym->st_shndx < SHN_LORESERVE)
6072 || sym->st_shndx > SHN_HIRESERVE)
6073 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
6077 if (tls_maskp != NULL)
6079 struct got_entry **lgot_ents;
6083 lgot_ents = elf_local_got_ents (ibfd);
6084 if (lgot_ents != NULL)
6086 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
6087 tls_mask = &lgot_masks[r_symndx];
6089 *tls_maskp = tls_mask;
6095 /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
6096 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
6097 type suitable for optimization, and 1 otherwise. */
6100 get_tls_mask (char **tls_maskp, unsigned long *toc_symndx,
6101 Elf_Internal_Sym **locsymsp,
6102 const Elf_Internal_Rela *rel, bfd *ibfd)
6104 unsigned long r_symndx;
6106 struct elf_link_hash_entry *h;
6107 Elf_Internal_Sym *sym;
6111 r_symndx = ELF64_R_SYM (rel->r_info);
6112 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
6115 if ((*tls_maskp != NULL && **tls_maskp != 0)
6117 || ppc64_elf_section_data (sec)->sec_type != sec_toc)
6120 /* Look inside a TOC section too. */
6123 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
6124 off = h->root.u.def.value;
6127 off = sym->st_value;
6128 off += rel->r_addend;
6129 BFD_ASSERT (off % 8 == 0);
6130 r_symndx = ppc64_elf_section_data (sec)->u.t_symndx[off / 8];
6131 next_r = ppc64_elf_section_data (sec)->u.t_symndx[off / 8 + 1];
6132 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
6134 if (toc_symndx != NULL)
6135 *toc_symndx = r_symndx;
6137 || ((h->root.type == bfd_link_hash_defined
6138 || h->root.type == bfd_link_hash_defweak)
6139 && !h->def_dynamic))
6140 && (next_r == -1 || next_r == -2))
6145 /* Adjust all global syms defined in opd sections. In gcc generated
6146 code for the old ABI, these will already have been done. */
6149 adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
6151 struct ppc_link_hash_entry *eh;
6153 struct _opd_sec_data *opd;
6155 if (h->root.type == bfd_link_hash_indirect)
6158 if (h->root.type == bfd_link_hash_warning)
6159 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6161 if (h->root.type != bfd_link_hash_defined
6162 && h->root.type != bfd_link_hash_defweak)
6165 eh = (struct ppc_link_hash_entry *) h;
6166 if (eh->adjust_done)
6169 sym_sec = eh->elf.root.u.def.section;
6170 opd = get_opd_info (sym_sec);
6171 if (opd != NULL && opd->adjust != NULL)
6173 long adjust = opd->adjust[eh->elf.root.u.def.value / 8];
6176 /* This entry has been deleted. */
6177 asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section;
6180 for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next)
6181 if (elf_discarded_section (dsec))
6183 ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec;
6187 eh->elf.root.u.def.value = 0;
6188 eh->elf.root.u.def.section = dsec;
6191 eh->elf.root.u.def.value += adjust;
6192 eh->adjust_done = 1;
6197 /* Handles decrementing dynamic reloc counts for the reloc specified by
6198 R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM_SEC
6199 have already been determined. */
6202 dec_dynrel_count (bfd_vma r_info,
6204 struct bfd_link_info *info,
6205 Elf_Internal_Sym **local_syms,
6206 struct elf_link_hash_entry *h,
6209 enum elf_ppc64_reloc_type r_type;
6210 struct ppc_dyn_relocs *p;
6211 struct ppc_dyn_relocs **pp;
6213 /* Can this reloc be dynamic? This switch, and later tests here
6214 should be kept in sync with the code in check_relocs. */
6215 r_type = ELF64_R_TYPE (r_info);
6221 case R_PPC64_TPREL16:
6222 case R_PPC64_TPREL16_LO:
6223 case R_PPC64_TPREL16_HI:
6224 case R_PPC64_TPREL16_HA:
6225 case R_PPC64_TPREL16_DS:
6226 case R_PPC64_TPREL16_LO_DS:
6227 case R_PPC64_TPREL16_HIGHER:
6228 case R_PPC64_TPREL16_HIGHERA:
6229 case R_PPC64_TPREL16_HIGHEST:
6230 case R_PPC64_TPREL16_HIGHESTA:
6234 case R_PPC64_TPREL64:
6235 case R_PPC64_DTPMOD64:
6236 case R_PPC64_DTPREL64:
6237 case R_PPC64_ADDR64:
6241 case R_PPC64_ADDR14:
6242 case R_PPC64_ADDR14_BRNTAKEN:
6243 case R_PPC64_ADDR14_BRTAKEN:
6244 case R_PPC64_ADDR16:
6245 case R_PPC64_ADDR16_DS:
6246 case R_PPC64_ADDR16_HA:
6247 case R_PPC64_ADDR16_HI:
6248 case R_PPC64_ADDR16_HIGHER:
6249 case R_PPC64_ADDR16_HIGHERA:
6250 case R_PPC64_ADDR16_HIGHEST:
6251 case R_PPC64_ADDR16_HIGHESTA:
6252 case R_PPC64_ADDR16_LO:
6253 case R_PPC64_ADDR16_LO_DS:
6254 case R_PPC64_ADDR24:
6255 case R_PPC64_ADDR32:
6256 case R_PPC64_UADDR16:
6257 case R_PPC64_UADDR32:
6258 case R_PPC64_UADDR64:
6263 if (local_syms != NULL)
6265 unsigned long r_symndx;
6266 Elf_Internal_Sym *sym;
6267 bfd *ibfd = sec->owner;
6269 r_symndx = ELF64_R_SYM (r_info);
6270 if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd))
6275 && (MUST_BE_DYN_RELOC (r_type)
6278 || h->root.type == bfd_link_hash_defweak
6279 || !h->def_regular))))
6280 || (ELIMINATE_COPY_RELOCS
6283 && (h->root.type == bfd_link_hash_defweak
6284 || !h->def_regular)))
6290 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
6293 if (sym_sec != NULL)
6295 void *vpp = &elf_section_data (sym_sec)->local_dynrel;
6296 pp = (struct ppc_dyn_relocs **) vpp;
6300 void *vpp = &elf_section_data (sec)->local_dynrel;
6301 pp = (struct ppc_dyn_relocs **) vpp;
6304 /* elf_gc_sweep may have already removed all dyn relocs associated
6305 with local syms for a given section. Don't report a dynreloc
6311 while ((p = *pp) != NULL)
6315 if (!MUST_BE_DYN_RELOC (r_type))
6325 (*_bfd_error_handler) (_("dynreloc miscount for %B, section %A"),
6327 bfd_set_error (bfd_error_bad_value);
6331 /* Remove unused Official Procedure Descriptor entries. Currently we
6332 only remove those associated with functions in discarded link-once
6333 sections, or weakly defined functions that have been overridden. It
6334 would be possible to remove many more entries for statically linked
6338 ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info,
6339 bfd_boolean non_overlapping)
6342 bfd_boolean some_edited = FALSE;
6343 asection *need_pad = NULL;
6345 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6348 Elf_Internal_Rela *relstart, *rel, *relend;
6349 Elf_Internal_Shdr *symtab_hdr;
6350 Elf_Internal_Sym *local_syms;
6351 struct elf_link_hash_entry **sym_hashes;
6353 struct _opd_sec_data *opd;
6354 bfd_boolean need_edit, add_aux_fields;
6355 bfd_size_type cnt_16b = 0;
6357 sec = bfd_get_section_by_name (ibfd, ".opd");
6358 if (sec == NULL || sec->size == 0)
6361 if (sec->sec_info_type == ELF_INFO_TYPE_JUST_SYMS)
6364 if (sec->output_section == bfd_abs_section_ptr)
6367 /* Look through the section relocs. */
6368 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
6372 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
6373 sym_hashes = elf_sym_hashes (ibfd);
6375 /* Read the relocations. */
6376 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
6378 if (relstart == NULL)
6381 /* First run through the relocs to check they are sane, and to
6382 determine whether we need to edit this opd section. */
6386 relend = relstart + sec->reloc_count;
6387 for (rel = relstart; rel < relend; )
6389 enum elf_ppc64_reloc_type r_type;
6390 unsigned long r_symndx;
6392 struct elf_link_hash_entry *h;
6393 Elf_Internal_Sym *sym;
6395 /* .opd contains a regular array of 16 or 24 byte entries. We're
6396 only interested in the reloc pointing to a function entry
6398 if (rel->r_offset != offset
6399 || rel + 1 >= relend
6400 || (rel + 1)->r_offset != offset + 8)
6402 /* If someone messes with .opd alignment then after a
6403 "ld -r" we might have padding in the middle of .opd.
6404 Also, there's nothing to prevent someone putting
6405 something silly in .opd with the assembler. No .opd
6406 optimization for them! */
6408 (*_bfd_error_handler)
6409 (_("%B: .opd is not a regular array of opd entries"), ibfd);
6414 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
6415 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
6417 (*_bfd_error_handler)
6418 (_("%B: unexpected reloc type %u in .opd section"),
6424 r_symndx = ELF64_R_SYM (rel->r_info);
6425 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6429 if (sym_sec == NULL || sym_sec->owner == NULL)
6431 const char *sym_name;
6433 sym_name = h->root.root.string;
6435 sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym,
6438 (*_bfd_error_handler)
6439 (_("%B: undefined sym `%s' in .opd section"),
6445 /* opd entries are always for functions defined in the
6446 current input bfd. If the symbol isn't defined in the
6447 input bfd, then we won't be using the function in this
6448 bfd; It must be defined in a linkonce section in another
6449 bfd, or is weak. It's also possible that we are
6450 discarding the function due to a linker script /DISCARD/,
6451 which we test for via the output_section. */
6452 if (sym_sec->owner != ibfd
6453 || sym_sec->output_section == bfd_abs_section_ptr)
6458 || (rel + 1 == relend && rel->r_offset == offset + 16))
6460 if (sec->size == offset + 24)
6465 if (rel == relend && sec->size == offset + 16)
6473 if (rel->r_offset == offset + 24)
6475 else if (rel->r_offset != offset + 16)
6477 else if (rel + 1 < relend
6478 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
6479 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
6484 else if (rel + 2 < relend
6485 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64
6486 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)
6495 add_aux_fields = non_overlapping && cnt_16b > 0;
6497 if (need_edit || add_aux_fields)
6499 Elf_Internal_Rela *write_rel;
6500 bfd_byte *rptr, *wptr;
6501 bfd_byte *new_contents = NULL;
6506 amt = sec->size * sizeof (long) / 8;
6507 opd = &ppc64_elf_section_data (sec)->u.opd;
6508 opd->adjust = bfd_zalloc (obfd, amt);
6509 if (opd->adjust == NULL)
6511 ppc64_elf_section_data (sec)->sec_type = sec_opd;
6513 /* This seems a waste of time as input .opd sections are all
6514 zeros as generated by gcc, but I suppose there's no reason
6515 this will always be so. We might start putting something in
6516 the third word of .opd entries. */
6517 if ((sec->flags & SEC_IN_MEMORY) == 0)
6520 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
6525 if (local_syms != NULL
6526 && symtab_hdr->contents != (unsigned char *) local_syms)
6528 if (elf_section_data (sec)->relocs != relstart)
6532 sec->contents = loc;
6533 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6536 elf_section_data (sec)->relocs = relstart;
6538 new_contents = sec->contents;
6541 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
6542 if (new_contents == NULL)
6546 wptr = new_contents;
6547 rptr = sec->contents;
6549 write_rel = relstart;
6553 for (rel = relstart; rel < relend; rel++)
6555 unsigned long r_symndx;
6557 struct elf_link_hash_entry *h;
6558 Elf_Internal_Sym *sym;
6560 r_symndx = ELF64_R_SYM (rel->r_info);
6561 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6565 if (rel->r_offset == offset)
6567 struct ppc_link_hash_entry *fdh = NULL;
6569 /* See if the .opd entry is full 24 byte or
6570 16 byte (with fd_aux entry overlapped with next
6573 if ((rel + 2 == relend && sec->size == offset + 16)
6574 || (rel + 3 < relend
6575 && rel[2].r_offset == offset + 16
6576 && rel[3].r_offset == offset + 24
6577 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64
6578 && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC))
6582 && h->root.root.string[0] == '.')
6584 fdh = get_fdh ((struct ppc_link_hash_entry *) h,
6585 ppc_hash_table (info));
6587 && fdh->elf.root.type != bfd_link_hash_defined
6588 && fdh->elf.root.type != bfd_link_hash_defweak)
6592 skip = (sym_sec->owner != ibfd
6593 || sym_sec->output_section == bfd_abs_section_ptr);
6596 if (fdh != NULL && sym_sec->owner == ibfd)
6598 /* Arrange for the function descriptor sym
6600 fdh->elf.root.u.def.value = 0;
6601 fdh->elf.root.u.def.section = sym_sec;
6603 opd->adjust[rel->r_offset / 8] = -1;
6607 /* We'll be keeping this opd entry. */
6611 /* Redefine the function descriptor symbol to
6612 this location in the opd section. It is
6613 necessary to update the value here rather
6614 than using an array of adjustments as we do
6615 for local symbols, because various places
6616 in the generic ELF code use the value
6617 stored in u.def.value. */
6618 fdh->elf.root.u.def.value = wptr - new_contents;
6619 fdh->adjust_done = 1;
6622 /* Local syms are a bit tricky. We could
6623 tweak them as they can be cached, but
6624 we'd need to look through the local syms
6625 for the function descriptor sym which we
6626 don't have at the moment. So keep an
6627 array of adjustments. */
6628 opd->adjust[rel->r_offset / 8]
6629 = (wptr - new_contents) - (rptr - sec->contents);
6632 memcpy (wptr, rptr, opd_ent_size);
6633 wptr += opd_ent_size;
6634 if (add_aux_fields && opd_ent_size == 16)
6636 memset (wptr, '\0', 8);
6640 rptr += opd_ent_size;
6641 offset += opd_ent_size;
6647 && !info->relocatable
6648 && !dec_dynrel_count (rel->r_info, sec, info,
6654 /* We need to adjust any reloc offsets to point to the
6655 new opd entries. While we're at it, we may as well
6656 remove redundant relocs. */
6657 rel->r_offset += opd->adjust[(offset - opd_ent_size) / 8];
6658 if (write_rel != rel)
6659 memcpy (write_rel, rel, sizeof (*rel));
6664 sec->size = wptr - new_contents;
6665 sec->reloc_count = write_rel - relstart;
6668 free (sec->contents);
6669 sec->contents = new_contents;
6672 /* Fudge the header size too, as this is used later in
6673 elf_bfd_final_link if we are emitting relocs. */
6674 elf_section_data (sec)->rel_hdr.sh_size
6675 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
6676 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
6679 else if (elf_section_data (sec)->relocs != relstart)
6682 if (local_syms != NULL
6683 && symtab_hdr->contents != (unsigned char *) local_syms)
6685 if (!info->keep_memory)
6688 symtab_hdr->contents = (unsigned char *) local_syms;
6693 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
6695 /* If we are doing a final link and the last .opd entry is just 16 byte
6696 long, add a 8 byte padding after it. */
6697 if (need_pad != NULL && !info->relocatable)
6701 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
6703 BFD_ASSERT (need_pad->size > 0);
6705 p = bfd_malloc (need_pad->size + 8);
6709 if (! bfd_get_section_contents (need_pad->owner, need_pad,
6710 p, 0, need_pad->size))
6713 need_pad->contents = p;
6714 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6718 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
6722 need_pad->contents = p;
6725 memset (need_pad->contents + need_pad->size, 0, 8);
6726 need_pad->size += 8;
6732 /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
6735 ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
6737 struct ppc_link_hash_table *htab;
6739 htab = ppc_hash_table (info);
6740 if (htab->tls_get_addr != NULL)
6742 struct ppc_link_hash_entry *h = htab->tls_get_addr;
6744 while (h->elf.root.type == bfd_link_hash_indirect
6745 || h->elf.root.type == bfd_link_hash_warning)
6746 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
6748 htab->tls_get_addr = h;
6750 if (htab->tls_get_addr_fd == NULL
6752 && h->oh->is_func_descriptor
6753 && (h->oh->elf.root.type == bfd_link_hash_defined
6754 || h->oh->elf.root.type == bfd_link_hash_defweak))
6755 htab->tls_get_addr_fd = h->oh;
6758 if (htab->tls_get_addr_fd != NULL)
6760 struct ppc_link_hash_entry *h = htab->tls_get_addr_fd;
6762 while (h->elf.root.type == bfd_link_hash_indirect
6763 || h->elf.root.type == bfd_link_hash_warning)
6764 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
6766 htab->tls_get_addr_fd = h;
6769 return _bfd_elf_tls_setup (obfd, info);
6772 /* Run through all the TLS relocs looking for optimization
6773 opportunities. The linker has been hacked (see ppc64elf.em) to do
6774 a preliminary section layout so that we know the TLS segment
6775 offsets. We can't optimize earlier because some optimizations need
6776 to know the tp offset, and we need to optimize before allocating
6777 dynamic relocations. */
6780 ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
6784 struct ppc_link_hash_table *htab;
6787 if (info->relocatable || info->shared)
6790 htab = ppc_hash_table (info);
6791 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6793 Elf_Internal_Sym *locsyms = NULL;
6794 asection *toc = bfd_get_section_by_name (ibfd, ".toc");
6795 unsigned char *toc_ref = NULL;
6797 /* Look at all the sections for this file. Make two passes over
6798 the relocs. On the first pass, mark toc entries involved
6799 with tls relocs, and check that tls relocs involved in
6800 setting up a tls_get_addr call are indeed followed by such a
6801 call. If they are not, exclude them from the optimizations
6802 done on the second pass. */
6803 for (pass = 0; pass < 2; ++pass)
6804 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
6805 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
6807 Elf_Internal_Rela *relstart, *rel, *relend;
6809 /* Read the relocations. */
6810 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
6812 if (relstart == NULL)
6815 relend = relstart + sec->reloc_count;
6816 for (rel = relstart; rel < relend; rel++)
6818 enum elf_ppc64_reloc_type r_type;
6819 unsigned long r_symndx;
6820 struct elf_link_hash_entry *h;
6821 Elf_Internal_Sym *sym;
6824 char tls_set, tls_clear, tls_type = 0;
6826 bfd_boolean ok_tprel, is_local;
6827 long toc_ref_index = 0;
6828 int expecting_tls_get_addr = 0;
6830 r_symndx = ELF64_R_SYM (rel->r_info);
6831 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
6835 if (elf_section_data (sec)->relocs != relstart)
6837 if (toc_ref != NULL)
6840 && (elf_tdata (ibfd)->symtab_hdr.contents
6841 != (unsigned char *) locsyms))
6848 if (h->root.type != bfd_link_hash_defined
6849 && h->root.type != bfd_link_hash_defweak)
6851 value = h->root.u.def.value;
6854 /* Symbols referenced by TLS relocs must be of type
6855 STT_TLS. So no need for .opd local sym adjust. */
6856 value = sym->st_value;
6864 value += sym_sec->output_offset;
6865 value += sym_sec->output_section->vma;
6866 value -= htab->elf.tls_sec->vma;
6867 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
6868 < (bfd_vma) 1 << 32);
6871 r_type = ELF64_R_TYPE (rel->r_info);
6874 case R_PPC64_GOT_TLSLD16:
6875 case R_PPC64_GOT_TLSLD16_LO:
6876 expecting_tls_get_addr = 1;
6879 case R_PPC64_GOT_TLSLD16_HI:
6880 case R_PPC64_GOT_TLSLD16_HA:
6881 /* These relocs should never be against a symbol
6882 defined in a shared lib. Leave them alone if
6883 that turns out to be the case. */
6890 tls_type = TLS_TLS | TLS_LD;
6893 case R_PPC64_GOT_TLSGD16:
6894 case R_PPC64_GOT_TLSGD16_LO:
6895 expecting_tls_get_addr = 1;
6898 case R_PPC64_GOT_TLSGD16_HI:
6899 case R_PPC64_GOT_TLSGD16_HA:
6905 tls_set = TLS_TLS | TLS_TPRELGD;
6907 tls_type = TLS_TLS | TLS_GD;
6910 case R_PPC64_GOT_TPREL16_DS:
6911 case R_PPC64_GOT_TPREL16_LO_DS:
6912 case R_PPC64_GOT_TPREL16_HI:
6913 case R_PPC64_GOT_TPREL16_HA:
6918 tls_clear = TLS_TPREL;
6919 tls_type = TLS_TLS | TLS_TPREL;
6925 case R_PPC64_TOC16_LO:
6927 if (sym_sec == NULL || sym_sec != toc)
6930 /* Mark this toc entry as referenced by a TLS
6931 code sequence. We can do that now in the
6932 case of R_PPC64_TLS, and after checking for
6933 tls_get_addr for the TOC16 relocs. */
6934 if (toc_ref == NULL)
6936 toc_ref = bfd_zmalloc (toc->size / 8);
6937 if (toc_ref == NULL)
6941 value = h->root.u.def.value;
6943 value = sym->st_value;
6944 value += rel->r_addend;
6945 BFD_ASSERT (value < toc->size && value % 8 == 0);
6946 toc_ref_index = value / 8;
6947 if (r_type == R_PPC64_TLS)
6949 toc_ref[toc_ref_index] = 1;
6953 if (pass != 0 && toc_ref[toc_ref_index] == 0)
6958 expecting_tls_get_addr = 2;
6961 case R_PPC64_TPREL64:
6965 || !toc_ref[rel->r_offset / 8])
6970 tls_set = TLS_EXPLICIT;
6971 tls_clear = TLS_TPREL;
6976 case R_PPC64_DTPMOD64:
6980 || !toc_ref[rel->r_offset / 8])
6982 if (rel + 1 < relend
6984 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
6985 && rel[1].r_offset == rel->r_offset + 8)
6989 tls_set = TLS_EXPLICIT | TLS_GD;
6992 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
7001 tls_set = TLS_EXPLICIT;
7012 if (!expecting_tls_get_addr)
7015 if (rel + 1 < relend)
7017 Elf_Internal_Shdr *symtab_hdr;
7018 enum elf_ppc64_reloc_type r_type2;
7019 unsigned long r_symndx2;
7020 struct elf_link_hash_entry *h2;
7022 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
7024 /* The next instruction should be a call to
7025 __tls_get_addr. Peek at the reloc to be sure. */
7026 r_type2 = ELF64_R_TYPE (rel[1].r_info);
7027 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
7028 if (r_symndx2 >= symtab_hdr->sh_info
7029 && (r_type2 == R_PPC64_REL14
7030 || r_type2 == R_PPC64_REL14_BRTAKEN
7031 || r_type2 == R_PPC64_REL14_BRNTAKEN
7032 || r_type2 == R_PPC64_REL24))
7034 struct elf_link_hash_entry **sym_hashes;
7036 sym_hashes = elf_sym_hashes (ibfd);
7038 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
7039 while (h2->root.type == bfd_link_hash_indirect
7040 || h2->root.type == bfd_link_hash_warning)
7041 h2 = ((struct elf_link_hash_entry *)
7044 && (h2 == &htab->tls_get_addr->elf
7045 || h2 == &htab->tls_get_addr_fd->elf))
7047 if (expecting_tls_get_addr == 2)
7049 /* Check for toc tls entries. */
7053 retval = get_tls_mask (&toc_tls, NULL,
7058 if (retval > 1 && toc_tls != NULL)
7059 toc_ref[toc_ref_index] = 1;
7066 if (expecting_tls_get_addr != 1)
7069 /* Uh oh, we didn't find the expected call. We
7070 could just mark this symbol to exclude it
7071 from tls optimization but it's safer to skip
7072 the entire section. */
7073 sec->has_tls_reloc = 0;
7077 if (expecting_tls_get_addr && htab->tls_get_addr != NULL)
7079 struct plt_entry *ent;
7080 for (ent = htab->tls_get_addr->elf.plt.plist;
7083 if (ent->addend == 0)
7085 if (ent->plt.refcount > 0)
7087 ent->plt.refcount -= 1;
7088 expecting_tls_get_addr = 0;
7094 if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL)
7096 struct plt_entry *ent;
7097 for (ent = htab->tls_get_addr_fd->elf.plt.plist;
7100 if (ent->addend == 0)
7102 if (ent->plt.refcount > 0)
7103 ent->plt.refcount -= 1;
7111 if ((tls_set & TLS_EXPLICIT) == 0)
7113 struct got_entry *ent;
7115 /* Adjust got entry for this reloc. */
7119 ent = elf_local_got_ents (ibfd)[r_symndx];
7121 for (; ent != NULL; ent = ent->next)
7122 if (ent->addend == rel->r_addend
7123 && ent->owner == ibfd
7124 && ent->tls_type == tls_type)
7131 /* We managed to get rid of a got entry. */
7132 if (ent->got.refcount > 0)
7133 ent->got.refcount -= 1;
7138 /* If we got rid of a DTPMOD/DTPREL reloc pair then
7139 we'll lose one or two dyn relocs. */
7140 if (!dec_dynrel_count (rel->r_info, sec, info,
7144 if (tls_set == (TLS_EXPLICIT | TLS_GD))
7146 if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
7152 *tls_mask |= tls_set;
7153 *tls_mask &= ~tls_clear;
7156 if (elf_section_data (sec)->relocs != relstart)
7160 if (toc_ref != NULL)
7164 && (elf_tdata (ibfd)->symtab_hdr.contents
7165 != (unsigned char *) locsyms))
7167 if (!info->keep_memory)
7170 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
7176 /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
7177 the values of any global symbols in a toc section that has been
7178 edited. Globals in toc sections should be a rarity, so this function
7179 sets a flag if any are found in toc sections other than the one just
7180 edited, so that futher hash table traversals can be avoided. */
7182 struct adjust_toc_info
7185 unsigned long *skip;
7186 bfd_boolean global_toc_syms;
7190 adjust_toc_syms (struct elf_link_hash_entry *h, void *inf)
7192 struct ppc_link_hash_entry *eh;
7193 struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf;
7195 if (h->root.type == bfd_link_hash_indirect)
7198 if (h->root.type == bfd_link_hash_warning)
7199 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7201 if (h->root.type != bfd_link_hash_defined
7202 && h->root.type != bfd_link_hash_defweak)
7205 eh = (struct ppc_link_hash_entry *) h;
7206 if (eh->adjust_done)
7209 if (eh->elf.root.u.def.section == toc_inf->toc)
7211 unsigned long skip = toc_inf->skip[eh->elf.root.u.def.value >> 3];
7212 if (skip != (unsigned long) -1)
7213 eh->elf.root.u.def.value -= skip;
7216 (*_bfd_error_handler)
7217 (_("%s defined in removed toc entry"), eh->elf.root.root.string);
7218 eh->elf.root.u.def.section = &bfd_abs_section;
7219 eh->elf.root.u.def.value = 0;
7221 eh->adjust_done = 1;
7223 else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0)
7224 toc_inf->global_toc_syms = TRUE;
7229 /* Examine all relocs referencing .toc sections in order to remove
7230 unused .toc entries. */
7233 ppc64_elf_edit_toc (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
7236 struct adjust_toc_info toc_inf;
7238 toc_inf.global_toc_syms = TRUE;
7239 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7241 asection *toc, *sec;
7242 Elf_Internal_Shdr *symtab_hdr;
7243 Elf_Internal_Sym *local_syms;
7244 struct elf_link_hash_entry **sym_hashes;
7245 Elf_Internal_Rela *relstart, *rel;
7246 unsigned long *skip, *drop;
7247 unsigned char *used;
7248 unsigned char *keep, last, some_unused;
7250 toc = bfd_get_section_by_name (ibfd, ".toc");
7253 || toc->sec_info_type == ELF_INFO_TYPE_JUST_SYMS
7254 || elf_discarded_section (toc))
7258 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
7259 sym_hashes = elf_sym_hashes (ibfd);
7261 /* Look at sections dropped from the final link. */
7264 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7266 if (sec->reloc_count == 0
7267 || !elf_discarded_section (sec)
7268 || get_opd_info (sec)
7269 || (sec->flags & SEC_ALLOC) == 0
7270 || (sec->flags & SEC_DEBUGGING) != 0)
7273 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE);
7274 if (relstart == NULL)
7277 /* Run through the relocs to see which toc entries might be
7279 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7281 enum elf_ppc64_reloc_type r_type;
7282 unsigned long r_symndx;
7284 struct elf_link_hash_entry *h;
7285 Elf_Internal_Sym *sym;
7288 r_type = ELF64_R_TYPE (rel->r_info);
7295 case R_PPC64_TOC16_LO:
7296 case R_PPC64_TOC16_HI:
7297 case R_PPC64_TOC16_HA:
7298 case R_PPC64_TOC16_DS:
7299 case R_PPC64_TOC16_LO_DS:
7303 r_symndx = ELF64_R_SYM (rel->r_info);
7304 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7312 val = h->root.u.def.value;
7314 val = sym->st_value;
7315 val += rel->r_addend;
7317 if (val >= toc->size)
7320 /* Anything in the toc ought to be aligned to 8 bytes.
7321 If not, don't mark as unused. */
7327 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 7) / 8);
7335 if (elf_section_data (sec)->relocs != relstart)
7342 used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8);
7346 if (local_syms != NULL
7347 && symtab_hdr->contents != (unsigned char *) local_syms)
7351 && elf_section_data (sec)->relocs != relstart)
7358 /* Now check all kept sections that might reference the toc.
7359 Check the toc itself last. */
7360 for (sec = (ibfd->sections == toc && toc->next ? toc->next
7363 sec = (sec == toc ? NULL
7364 : sec->next == NULL ? toc
7365 : sec->next == toc && toc->next ? toc->next
7370 if (sec->reloc_count == 0
7371 || elf_discarded_section (sec)
7372 || get_opd_info (sec)
7373 || (sec->flags & SEC_ALLOC) == 0
7374 || (sec->flags & SEC_DEBUGGING) != 0)
7377 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, TRUE);
7378 if (relstart == NULL)
7381 /* Mark toc entries referenced as used. */
7384 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7386 enum elf_ppc64_reloc_type r_type;
7387 unsigned long r_symndx;
7389 struct elf_link_hash_entry *h;
7390 Elf_Internal_Sym *sym;
7393 r_type = ELF64_R_TYPE (rel->r_info);
7397 case R_PPC64_TOC16_LO:
7398 case R_PPC64_TOC16_HI:
7399 case R_PPC64_TOC16_HA:
7400 case R_PPC64_TOC16_DS:
7401 case R_PPC64_TOC16_LO_DS:
7402 /* In case we're taking addresses of toc entries. */
7403 case R_PPC64_ADDR64:
7410 r_symndx = ELF64_R_SYM (rel->r_info);
7411 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7422 val = h->root.u.def.value;
7424 val = sym->st_value;
7425 val += rel->r_addend;
7427 if (val >= toc->size)
7430 /* For the toc section, we only mark as used if
7431 this entry itself isn't unused. */
7434 && (used[rel->r_offset >> 3]
7435 || !skip[rel->r_offset >> 3]))
7436 /* Do all the relocs again, to catch reference
7445 /* Merge the used and skip arrays. Assume that TOC
7446 doublewords not appearing as either used or unused belong
7447 to to an entry more than one doubleword in size. */
7448 for (drop = skip, keep = used, last = 0, some_unused = 0;
7449 drop < skip + (toc->size + 7) / 8;
7470 bfd_byte *contents, *src;
7473 /* Shuffle the toc contents, and at the same time convert the
7474 skip array from booleans into offsets. */
7475 if (!bfd_malloc_and_get_section (ibfd, toc, &contents))
7478 elf_section_data (toc)->this_hdr.contents = contents;
7480 for (src = contents, off = 0, drop = skip;
7481 src < contents + toc->size;
7486 *drop = (unsigned long) -1;
7492 memcpy (src - off, src, 8);
7495 toc->rawsize = toc->size;
7496 toc->size = src - contents - off;
7498 if (toc->reloc_count != 0)
7500 Elf_Internal_Rela *wrel;
7503 /* Read toc relocs. */
7504 relstart = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
7506 if (relstart == NULL)
7509 /* Remove unused toc relocs, and adjust those we keep. */
7511 for (rel = relstart; rel < relstart + toc->reloc_count; ++rel)
7512 if (skip[rel->r_offset >> 3] != (unsigned long) -1)
7514 wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3];
7515 wrel->r_info = rel->r_info;
7516 wrel->r_addend = rel->r_addend;
7519 else if (!dec_dynrel_count (rel->r_info, toc, info,
7520 &local_syms, NULL, NULL))
7523 toc->reloc_count = wrel - relstart;
7524 sz = elf_section_data (toc)->rel_hdr.sh_entsize;
7525 elf_section_data (toc)->rel_hdr.sh_size = toc->reloc_count * sz;
7526 BFD_ASSERT (elf_section_data (toc)->rel_hdr2 == NULL);
7529 /* Adjust addends for relocs against the toc section sym. */
7530 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7532 if (sec->reloc_count == 0
7533 || elf_discarded_section (sec))
7536 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
7538 if (relstart == NULL)
7541 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7543 enum elf_ppc64_reloc_type r_type;
7544 unsigned long r_symndx;
7546 struct elf_link_hash_entry *h;
7547 Elf_Internal_Sym *sym;
7549 r_type = ELF64_R_TYPE (rel->r_info);
7556 case R_PPC64_TOC16_LO:
7557 case R_PPC64_TOC16_HI:
7558 case R_PPC64_TOC16_HA:
7559 case R_PPC64_TOC16_DS:
7560 case R_PPC64_TOC16_LO_DS:
7561 case R_PPC64_ADDR64:
7565 r_symndx = ELF64_R_SYM (rel->r_info);
7566 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7570 if (sym_sec != toc || h != NULL || sym->st_value != 0)
7573 rel->r_addend -= skip[rel->r_addend >> 3];
7577 /* We shouldn't have local or global symbols defined in the TOC,
7578 but handle them anyway. */
7579 if (local_syms != NULL)
7581 Elf_Internal_Sym *sym;
7583 for (sym = local_syms;
7584 sym < local_syms + symtab_hdr->sh_info;
7586 if (sym->st_shndx != SHN_UNDEF
7587 && (sym->st_shndx < SHN_LORESERVE
7588 || sym->st_shndx > SHN_HIRESERVE)
7589 && sym->st_value != 0
7590 && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc)
7592 if (skip[sym->st_value >> 3] != (unsigned long) -1)
7593 sym->st_value -= skip[sym->st_value >> 3];
7596 (*_bfd_error_handler)
7597 (_("%s defined in removed toc entry"),
7598 bfd_elf_sym_name (ibfd, symtab_hdr, sym,
7601 sym->st_shndx = SHN_ABS;
7603 symtab_hdr->contents = (unsigned char *) local_syms;
7607 /* Finally, adjust any global syms defined in the toc. */
7608 if (toc_inf.global_toc_syms)
7611 toc_inf.skip = skip;
7612 toc_inf.global_toc_syms = FALSE;
7613 elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms,
7618 if (local_syms != NULL
7619 && symtab_hdr->contents != (unsigned char *) local_syms)
7621 if (!info->keep_memory)
7624 symtab_hdr->contents = (unsigned char *) local_syms;
7632 /* Allocate space in .plt, .got and associated reloc sections for
7636 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
7638 struct bfd_link_info *info;
7639 struct ppc_link_hash_table *htab;
7641 struct ppc_link_hash_entry *eh;
7642 struct ppc_dyn_relocs *p;
7643 struct got_entry *gent;
7645 if (h->root.type == bfd_link_hash_indirect)
7648 if (h->root.type == bfd_link_hash_warning)
7649 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7651 info = (struct bfd_link_info *) inf;
7652 htab = ppc_hash_table (info);
7654 if (htab->elf.dynamic_sections_created
7656 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
7658 struct plt_entry *pent;
7659 bfd_boolean doneone = FALSE;
7660 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
7661 if (pent->plt.refcount > 0)
7663 /* If this is the first .plt entry, make room for the special
7667 s->size += PLT_INITIAL_ENTRY_SIZE;
7669 pent->plt.offset = s->size;
7671 /* Make room for this entry. */
7672 s->size += PLT_ENTRY_SIZE;
7674 /* Make room for the .glink code. */
7677 s->size += GLINK_CALL_STUB_SIZE;
7678 /* We need bigger stubs past index 32767. */
7679 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
7683 /* We also need to make an entry in the .rela.plt section. */
7685 s->size += sizeof (Elf64_External_Rela);
7689 pent->plt.offset = (bfd_vma) -1;
7692 h->plt.plist = NULL;
7698 h->plt.plist = NULL;
7702 eh = (struct ppc_link_hash_entry *) h;
7703 /* Run through the TLS GD got entries first if we're changing them
7705 if ((eh->tls_mask & TLS_TPRELGD) != 0)
7706 for (gent = h->got.glist; gent != NULL; gent = gent->next)
7707 if (gent->got.refcount > 0
7708 && (gent->tls_type & TLS_GD) != 0)
7710 /* This was a GD entry that has been converted to TPREL. If
7711 there happens to be a TPREL entry we can use that one. */
7712 struct got_entry *ent;
7713 for (ent = h->got.glist; ent != NULL; ent = ent->next)
7714 if (ent->got.refcount > 0
7715 && (ent->tls_type & TLS_TPREL) != 0
7716 && ent->addend == gent->addend
7717 && ent->owner == gent->owner)
7719 gent->got.refcount = 0;
7723 /* If not, then we'll be using our own TPREL entry. */
7724 if (gent->got.refcount != 0)
7725 gent->tls_type = TLS_TLS | TLS_TPREL;
7728 for (gent = h->got.glist; gent != NULL; gent = gent->next)
7729 if (gent->got.refcount > 0)
7733 /* Make sure this symbol is output as a dynamic symbol.
7734 Undefined weak syms won't yet be marked as dynamic,
7735 nor will all TLS symbols. */
7736 if (h->dynindx == -1
7737 && !h->forced_local)
7739 if (! bfd_elf_link_record_dynamic_symbol (info, h))
7743 if ((gent->tls_type & TLS_LD) != 0
7746 ppc64_tlsld_got (gent->owner)->refcount += 1;
7747 gent->got.offset = (bfd_vma) -1;
7751 s = ppc64_elf_tdata (gent->owner)->got;
7752 gent->got.offset = s->size;
7754 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
7755 dyn = htab->elf.dynamic_sections_created;
7757 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
7758 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7759 || h->root.type != bfd_link_hash_undefweak))
7760 ppc64_elf_tdata (gent->owner)->relgot->size
7761 += (gent->tls_type & eh->tls_mask & TLS_GD
7762 ? 2 * sizeof (Elf64_External_Rela)
7763 : sizeof (Elf64_External_Rela));
7766 gent->got.offset = (bfd_vma) -1;
7768 if (eh->dyn_relocs == NULL)
7771 /* In the shared -Bsymbolic case, discard space allocated for
7772 dynamic pc-relative relocs against symbols which turn out to be
7773 defined in regular objects. For the normal shared case, discard
7774 space for relocs that have become local due to symbol visibility
7779 /* Relocs that use pc_count are those that appear on a call insn,
7780 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
7781 generated via assembly. We want calls to protected symbols to
7782 resolve directly to the function rather than going via the plt.
7783 If people want function pointer comparisons to work as expected
7784 then they should avoid writing weird assembly. */
7785 if (SYMBOL_CALLS_LOCAL (info, h))
7787 struct ppc_dyn_relocs **pp;
7789 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
7791 p->count -= p->pc_count;
7800 /* Also discard relocs on undefined weak syms with non-default
7802 if (eh->dyn_relocs != NULL
7803 && h->root.type == bfd_link_hash_undefweak)
7805 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
7806 eh->dyn_relocs = NULL;
7808 /* Make sure this symbol is output as a dynamic symbol.
7809 Undefined weak syms won't yet be marked as dynamic. */
7810 else if (h->dynindx == -1
7811 && !h->forced_local)
7813 if (! bfd_elf_link_record_dynamic_symbol (info, h))
7818 else if (ELIMINATE_COPY_RELOCS)
7820 /* For the non-shared case, discard space for relocs against
7821 symbols which turn out to need copy relocs or are not
7828 /* Make sure this symbol is output as a dynamic symbol.
7829 Undefined weak syms won't yet be marked as dynamic. */
7830 if (h->dynindx == -1
7831 && !h->forced_local)
7833 if (! bfd_elf_link_record_dynamic_symbol (info, h))
7837 /* If that succeeded, we know we'll be keeping all the
7839 if (h->dynindx != -1)
7843 eh->dyn_relocs = NULL;
7848 /* Finally, allocate space. */
7849 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7851 asection *sreloc = elf_section_data (p->sec)->sreloc;
7852 sreloc->size += p->count * sizeof (Elf64_External_Rela);
7858 /* Find any dynamic relocs that apply to read-only sections. */
7861 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
7863 struct ppc_link_hash_entry *eh;
7864 struct ppc_dyn_relocs *p;
7866 if (h->root.type == bfd_link_hash_warning)
7867 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7869 eh = (struct ppc_link_hash_entry *) h;
7870 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7872 asection *s = p->sec->output_section;
7874 if (s != NULL && (s->flags & SEC_READONLY) != 0)
7876 struct bfd_link_info *info = inf;
7878 info->flags |= DF_TEXTREL;
7880 /* Not an error, just cut short the traversal. */
7887 /* Set the sizes of the dynamic sections. */
7890 ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
7891 struct bfd_link_info *info)
7893 struct ppc_link_hash_table *htab;
7899 htab = ppc_hash_table (info);
7900 dynobj = htab->elf.dynobj;
7904 if (htab->elf.dynamic_sections_created)
7906 /* Set the contents of the .interp section to the interpreter. */
7907 if (info->executable)
7909 s = bfd_get_section_by_name (dynobj, ".interp");
7912 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
7913 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
7917 /* Set up .got offsets for local syms, and space for local dynamic
7919 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7921 struct got_entry **lgot_ents;
7922 struct got_entry **end_lgot_ents;
7924 bfd_size_type locsymcount;
7925 Elf_Internal_Shdr *symtab_hdr;
7928 if (!is_ppc64_elf_target (ibfd->xvec))
7931 for (s = ibfd->sections; s != NULL; s = s->next)
7933 struct ppc_dyn_relocs *p;
7935 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
7937 if (!bfd_is_abs_section (p->sec)
7938 && bfd_is_abs_section (p->sec->output_section))
7940 /* Input section has been discarded, either because
7941 it is a copy of a linkonce section or due to
7942 linker script /DISCARD/, so we'll be discarding
7945 else if (p->count != 0)
7947 srel = elf_section_data (p->sec)->sreloc;
7948 srel->size += p->count * sizeof (Elf64_External_Rela);
7949 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
7950 info->flags |= DF_TEXTREL;
7955 lgot_ents = elf_local_got_ents (ibfd);
7959 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
7960 locsymcount = symtab_hdr->sh_info;
7961 end_lgot_ents = lgot_ents + locsymcount;
7962 lgot_masks = (char *) end_lgot_ents;
7963 s = ppc64_elf_tdata (ibfd)->got;
7964 srel = ppc64_elf_tdata (ibfd)->relgot;
7965 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
7967 struct got_entry *ent;
7969 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
7970 if (ent->got.refcount > 0)
7972 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
7974 ppc64_tlsld_got (ibfd)->refcount += 1;
7975 ent->got.offset = (bfd_vma) -1;
7979 ent->got.offset = s->size;
7980 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
7984 srel->size += 2 * sizeof (Elf64_External_Rela);
7990 srel->size += sizeof (Elf64_External_Rela);
7995 ent->got.offset = (bfd_vma) -1;
7999 /* Allocate global sym .plt and .got entries, and space for global
8000 sym dynamic relocs. */
8001 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
8003 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
8005 if (!is_ppc64_elf_target (ibfd->xvec))
8008 if (ppc64_tlsld_got (ibfd)->refcount > 0)
8010 s = ppc64_elf_tdata (ibfd)->got;
8011 ppc64_tlsld_got (ibfd)->offset = s->size;
8015 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
8016 srel->size += sizeof (Elf64_External_Rela);
8020 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
8023 /* We now have determined the sizes of the various dynamic sections.
8024 Allocate memory for them. */
8026 for (s = dynobj->sections; s != NULL; s = s->next)
8028 if ((s->flags & SEC_LINKER_CREATED) == 0)
8031 if (s == htab->brlt || s == htab->relbrlt)
8032 /* These haven't been allocated yet; don't strip. */
8034 else if (s == htab->got
8037 || s == htab->dynbss)
8039 /* Strip this section if we don't need it; see the
8042 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
8046 if (s != htab->relplt)
8049 /* We use the reloc_count field as a counter if we need
8050 to copy relocs into the output file. */
8056 /* It's not one of our sections, so don't allocate space. */
8062 /* If we don't need this section, strip it from the
8063 output file. This is mostly to handle .rela.bss and
8064 .rela.plt. We must create both sections in
8065 create_dynamic_sections, because they must be created
8066 before the linker maps input sections to output
8067 sections. The linker does that before
8068 adjust_dynamic_symbol is called, and it is that
8069 function which decides whether anything needs to go
8070 into these sections. */
8071 s->flags |= SEC_EXCLUDE;
8075 if ((s->flags & SEC_HAS_CONTENTS) == 0)
8078 /* Allocate memory for the section contents. We use bfd_zalloc
8079 here in case unused entries are not reclaimed before the
8080 section's contents are written out. This should not happen,
8081 but this way if it does we get a R_PPC64_NONE reloc in .rela
8082 sections instead of garbage.
8083 We also rely on the section contents being zero when writing
8085 s->contents = bfd_zalloc (dynobj, s->size);
8086 if (s->contents == NULL)
8090 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
8092 if (!is_ppc64_elf_target (ibfd->xvec))
8095 s = ppc64_elf_tdata (ibfd)->got;
8096 if (s != NULL && s != htab->got)
8099 s->flags |= SEC_EXCLUDE;
8102 s->contents = bfd_zalloc (ibfd, s->size);
8103 if (s->contents == NULL)
8107 s = ppc64_elf_tdata (ibfd)->relgot;
8111 s->flags |= SEC_EXCLUDE;
8114 s->contents = bfd_zalloc (ibfd, s->size);
8115 if (s->contents == NULL)
8123 if (htab->elf.dynamic_sections_created)
8125 /* Add some entries to the .dynamic section. We fill in the
8126 values later, in ppc64_elf_finish_dynamic_sections, but we
8127 must add the entries now so that we get the correct size for
8128 the .dynamic section. The DT_DEBUG entry is filled in by the
8129 dynamic linker and used by the debugger. */
8130 #define add_dynamic_entry(TAG, VAL) \
8131 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
8133 if (info->executable)
8135 if (!add_dynamic_entry (DT_DEBUG, 0))
8139 if (htab->plt != NULL && htab->plt->size != 0)
8141 if (!add_dynamic_entry (DT_PLTGOT, 0)
8142 || !add_dynamic_entry (DT_PLTRELSZ, 0)
8143 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
8144 || !add_dynamic_entry (DT_JMPREL, 0)
8145 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
8151 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
8152 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
8158 if (!add_dynamic_entry (DT_RELA, 0)
8159 || !add_dynamic_entry (DT_RELASZ, 0)
8160 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
8163 /* If any dynamic relocs apply to a read-only section,
8164 then we need a DT_TEXTREL entry. */
8165 if ((info->flags & DF_TEXTREL) == 0)
8166 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
8168 if ((info->flags & DF_TEXTREL) != 0)
8170 if (!add_dynamic_entry (DT_TEXTREL, 0))
8175 #undef add_dynamic_entry
8180 /* Determine the type of stub needed, if any, for a call. */
8182 static inline enum ppc_stub_type
8183 ppc_type_of_stub (asection *input_sec,
8184 const Elf_Internal_Rela *rel,
8185 struct ppc_link_hash_entry **hash,
8186 bfd_vma destination)
8188 struct ppc_link_hash_entry *h = *hash;
8190 bfd_vma branch_offset;
8191 bfd_vma max_branch_offset;
8192 enum elf_ppc64_reloc_type r_type;
8196 struct ppc_link_hash_entry *fdh = h;
8198 && fdh->oh->is_func_descriptor)
8201 if (fdh->elf.dynindx != -1)
8203 struct plt_entry *ent;
8205 for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
8206 if (ent->addend == rel->r_addend
8207 && ent->plt.offset != (bfd_vma) -1)
8210 return ppc_stub_plt_call;
8214 /* Here, we know we don't have a plt entry. If we don't have a
8215 either a defined function descriptor or a defined entry symbol
8216 in a regular object file, then it is pointless trying to make
8217 any other type of stub. */
8218 if (!((fdh->elf.root.type == bfd_link_hash_defined
8219 || fdh->elf.root.type == bfd_link_hash_defweak)
8220 && fdh->elf.root.u.def.section->output_section != NULL)
8221 && !((h->elf.root.type == bfd_link_hash_defined
8222 || h->elf.root.type == bfd_link_hash_defweak)
8223 && h->elf.root.u.def.section->output_section != NULL))
8224 return ppc_stub_none;
8227 /* Determine where the call point is. */
8228 location = (input_sec->output_offset
8229 + input_sec->output_section->vma
8232 branch_offset = destination - location;
8233 r_type = ELF64_R_TYPE (rel->r_info);
8235 /* Determine if a long branch stub is needed. */
8236 max_branch_offset = 1 << 25;
8237 if (r_type != R_PPC64_REL24)
8238 max_branch_offset = 1 << 15;
8240 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
8241 /* We need a stub. Figure out whether a long_branch or plt_branch
8243 return ppc_stub_long_branch;
8245 return ppc_stub_none;
8248 /* Build a .plt call stub. */
8250 static inline bfd_byte *
8251 build_plt_stub (bfd *obfd, bfd_byte *p, int offset)
8253 #define PPC_LO(v) ((v) & 0xffff)
8254 #define PPC_HI(v) (((v) >> 16) & 0xffff)
8255 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
8257 if (PPC_HA (offset) != 0)
8259 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
8260 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
8261 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
8262 if (PPC_HA (offset + 16) != PPC_HA (offset))
8264 bfd_put_32 (obfd, ADDI_R12_R12 | PPC_LO (offset), p), p += 4;
8267 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
8268 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset + 8), p), p += 4;
8269 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset + 16), p), p += 4;
8270 bfd_put_32 (obfd, BCTR, p), p += 4;
8274 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
8275 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset), p), p += 4;
8276 if (PPC_HA (offset + 16) != PPC_HA (offset))
8278 bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4;
8281 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
8282 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
8283 bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4;
8284 bfd_put_32 (obfd, BCTR, p), p += 4;
8290 ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
8292 struct ppc_stub_hash_entry *stub_entry;
8293 struct ppc_branch_hash_entry *br_entry;
8294 struct bfd_link_info *info;
8295 struct ppc_link_hash_table *htab;
8299 struct plt_entry *ent;
8303 /* Massage our args to the form they really have. */
8304 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
8307 htab = ppc_hash_table (info);
8309 /* Make a note of the offset within the stubs for this entry. */
8310 stub_entry->stub_offset = stub_entry->stub_sec->size;
8311 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
8313 htab->stub_count[stub_entry->stub_type - 1] += 1;
8314 switch (stub_entry->stub_type)
8316 case ppc_stub_long_branch:
8317 case ppc_stub_long_branch_r2off:
8318 /* Branches are relative. This is where we are going to. */
8319 off = dest = (stub_entry->target_value
8320 + stub_entry->target_section->output_offset
8321 + stub_entry->target_section->output_section->vma);
8323 /* And this is where we are coming from. */
8324 off -= (stub_entry->stub_offset
8325 + stub_entry->stub_sec->output_offset
8326 + stub_entry->stub_sec->output_section->vma);
8329 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
8333 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8334 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8335 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
8338 if (PPC_HA (r2off) != 0)
8341 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
8344 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
8348 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
8350 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
8352 (*_bfd_error_handler) (_("long branch stub `%s' offset overflow"),
8353 stub_entry->root.string);
8354 htab->stub_error = TRUE;
8358 if (info->emitrelocations)
8360 Elf_Internal_Rela *relocs, *r;
8361 struct bfd_elf_section_data *elfsec_data;
8363 elfsec_data = elf_section_data (stub_entry->stub_sec);
8364 relocs = elfsec_data->relocs;
8367 bfd_size_type relsize;
8368 relsize = stub_entry->stub_sec->reloc_count * sizeof (*relocs);
8369 relocs = bfd_alloc (htab->stub_bfd, relsize);
8372 elfsec_data->relocs = relocs;
8373 elfsec_data->rel_hdr.sh_size = (stub_entry->stub_sec->reloc_count
8374 * sizeof (Elf64_External_Rela));
8375 elfsec_data->rel_hdr.sh_entsize = sizeof (Elf64_External_Rela);
8376 stub_entry->stub_sec->reloc_count = 0;
8378 r = relocs + stub_entry->stub_sec->reloc_count;
8379 stub_entry->stub_sec->reloc_count += 1;
8380 r->r_offset = loc - stub_entry->stub_sec->contents;
8381 r->r_info = ELF64_R_INFO (0, R_PPC64_REL24);
8383 if (stub_entry->h != NULL)
8385 struct elf_link_hash_entry **hashes;
8386 unsigned long symndx;
8387 struct ppc_link_hash_entry *h;
8389 hashes = elf_sym_hashes (htab->stub_bfd);
8392 bfd_size_type hsize;
8394 hsize = (htab->stub_globals + 1) * sizeof (*hashes);
8395 hashes = bfd_zalloc (htab->stub_bfd, hsize);
8398 elf_sym_hashes (htab->stub_bfd) = hashes;
8399 htab->stub_globals = 1;
8401 symndx = htab->stub_globals++;
8403 hashes[symndx] = &h->elf;
8404 r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24);
8405 if (h->oh != NULL && h->oh->is_func)
8407 if (h->elf.root.u.def.section != stub_entry->target_section)
8408 /* H is an opd symbol. The addend must be zero. */
8412 off = (h->elf.root.u.def.value
8413 + h->elf.root.u.def.section->output_offset
8414 + h->elf.root.u.def.section->output_section->vma);
8421 case ppc_stub_plt_branch:
8422 case ppc_stub_plt_branch_r2off:
8423 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
8424 stub_entry->root.string + 9,
8426 if (br_entry == NULL)
8428 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
8429 stub_entry->root.string);
8430 htab->stub_error = TRUE;
8434 off = (stub_entry->target_value
8435 + stub_entry->target_section->output_offset
8436 + stub_entry->target_section->output_section->vma);
8438 bfd_put_64 (htab->brlt->owner, off,
8439 htab->brlt->contents + br_entry->offset);
8441 if (br_entry->iter == htab->stub_iteration)
8445 if (htab->relbrlt != NULL)
8447 /* Create a reloc for the branch lookup table entry. */
8448 Elf_Internal_Rela rela;
8451 rela.r_offset = (br_entry->offset
8452 + htab->brlt->output_offset
8453 + htab->brlt->output_section->vma);
8454 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
8455 rela.r_addend = off;
8457 rl = htab->relbrlt->contents;
8458 rl += (htab->relbrlt->reloc_count++
8459 * sizeof (Elf64_External_Rela));
8460 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
8462 else if (info->emitrelocations)
8464 Elf_Internal_Rela *relocs, *r;
8465 struct bfd_elf_section_data *elfsec_data;
8467 elfsec_data = elf_section_data (htab->brlt);
8468 relocs = elfsec_data->relocs;
8471 bfd_size_type relsize;
8472 relsize = htab->brlt->reloc_count * sizeof (*relocs);
8473 relocs = bfd_alloc (htab->brlt->owner, relsize);
8476 elfsec_data->relocs = relocs;
8477 elfsec_data->rel_hdr.sh_size
8478 = (stub_entry->stub_sec->reloc_count
8479 * sizeof (Elf64_External_Rela));
8480 elfsec_data->rel_hdr.sh_entsize
8481 = sizeof (Elf64_External_Rela);
8482 htab->brlt->reloc_count = 0;
8484 r = relocs + htab->brlt->reloc_count;
8485 htab->brlt->reloc_count += 1;
8486 r->r_offset = (br_entry->offset
8487 + htab->brlt->output_offset
8488 + htab->brlt->output_section->vma);
8489 r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
8494 off = (br_entry->offset
8495 + htab->brlt->output_offset
8496 + htab->brlt->output_section->vma
8497 - elf_gp (htab->brlt->output_section->owner)
8498 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8500 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
8502 (*_bfd_error_handler)
8503 (_("linkage table error against `%s'"),
8504 stub_entry->root.string);
8505 bfd_set_error (bfd_error_bad_value);
8506 htab->stub_error = TRUE;
8511 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
8513 if (PPC_HA (indx) != 0)
8516 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
8518 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
8523 bfd_put_32 (htab->stub_bfd, LD_R11_0R2 | PPC_LO (indx), loc);
8530 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8531 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8532 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
8535 if (PPC_HA (indx) != 0)
8538 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
8540 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
8545 bfd_put_32 (htab->stub_bfd, LD_R11_0R2 | PPC_LO (indx), loc);
8549 if (PPC_HA (r2off) != 0)
8552 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
8555 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
8558 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
8560 bfd_put_32 (htab->stub_bfd, BCTR, loc);
8563 case ppc_stub_plt_call:
8564 /* Do the best we can for shared libraries built without
8565 exporting ".foo" for each "foo". This can happen when symbol
8566 versioning scripts strip all bar a subset of symbols. */
8567 if (stub_entry->h->oh != NULL
8568 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defined
8569 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defweak)
8571 /* Point the symbol at the stub. There may be multiple stubs,
8572 we don't really care; The main thing is to make this sym
8573 defined somewhere. Maybe defining the symbol in the stub
8574 section is a silly idea. If we didn't do this, htab->top_id
8576 stub_entry->h->oh->elf.root.type = bfd_link_hash_defined;
8577 stub_entry->h->oh->elf.root.u.def.section = stub_entry->stub_sec;
8578 stub_entry->h->oh->elf.root.u.def.value = stub_entry->stub_offset;
8581 /* Now build the stub. */
8583 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
8584 if (ent->addend == stub_entry->addend)
8586 off = ent->plt.offset;
8589 if (off >= (bfd_vma) -2)
8592 off &= ~ (bfd_vma) 1;
8593 off += (htab->plt->output_offset
8594 + htab->plt->output_section->vma
8595 - elf_gp (htab->plt->output_section->owner)
8596 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8598 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
8600 (*_bfd_error_handler)
8601 (_("linkage table error against `%s'"),
8602 stub_entry->h->elf.root.root.string);
8603 bfd_set_error (bfd_error_bad_value);
8604 htab->stub_error = TRUE;
8608 p = build_plt_stub (htab->stub_bfd, loc, off);
8617 stub_entry->stub_sec->size += size;
8619 if (htab->emit_stub_syms)
8621 struct elf_link_hash_entry *h;
8624 const char *const stub_str[] = { "long_branch",
8625 "long_branch_r2off",
8630 len1 = strlen (stub_str[stub_entry->stub_type - 1]);
8631 len2 = strlen (stub_entry->root.string);
8632 name = bfd_malloc (len1 + len2 + 2);
8635 memcpy (name, stub_entry->root.string, 9);
8636 memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1);
8637 memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1);
8638 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
8641 if (h->root.type == bfd_link_hash_new)
8643 h->root.type = bfd_link_hash_defined;
8644 h->root.u.def.section = stub_entry->stub_sec;
8645 h->root.u.def.value = stub_entry->stub_offset;
8648 h->ref_regular_nonweak = 1;
8649 h->forced_local = 1;
8657 /* As above, but don't actually build the stub. Just bump offset so
8658 we know stub section sizes, and select plt_branch stubs where
8659 long_branch stubs won't do. */
8662 ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
8664 struct ppc_stub_hash_entry *stub_entry;
8665 struct bfd_link_info *info;
8666 struct ppc_link_hash_table *htab;
8670 /* Massage our args to the form they really have. */
8671 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
8674 htab = ppc_hash_table (info);
8676 if (stub_entry->stub_type == ppc_stub_plt_call)
8678 struct plt_entry *ent;
8680 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
8681 if (ent->addend == stub_entry->addend)
8683 off = ent->plt.offset & ~(bfd_vma) 1;
8686 if (off >= (bfd_vma) -2)
8688 off += (htab->plt->output_offset
8689 + htab->plt->output_section->vma
8690 - elf_gp (htab->plt->output_section->owner)
8691 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8693 size = PLT_CALL_STUB_SIZE;
8694 if (PPC_HA (off) == 0)
8696 if (PPC_HA (off + 16) != PPC_HA (off))
8701 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
8705 off = (stub_entry->target_value
8706 + stub_entry->target_section->output_offset
8707 + stub_entry->target_section->output_section->vma);
8708 off -= (stub_entry->stub_sec->size
8709 + stub_entry->stub_sec->output_offset
8710 + stub_entry->stub_sec->output_section->vma);
8712 /* Reset the stub type from the plt variant in case we now
8713 can reach with a shorter stub. */
8714 if (stub_entry->stub_type >= ppc_stub_plt_branch)
8715 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
8718 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
8720 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8721 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8723 if (PPC_HA (r2off) != 0)
8728 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
8729 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
8731 struct ppc_branch_hash_entry *br_entry;
8734 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
8735 stub_entry->root.string + 9,
8737 if (br_entry == NULL)
8739 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
8740 stub_entry->root.string);
8741 htab->stub_error = TRUE;
8745 if (br_entry->iter != htab->stub_iteration)
8747 br_entry->iter = htab->stub_iteration;
8748 br_entry->offset = htab->brlt->size;
8749 htab->brlt->size += 8;
8751 if (htab->relbrlt != NULL)
8752 htab->relbrlt->size += sizeof (Elf64_External_Rela);
8753 else if (info->emitrelocations)
8755 htab->brlt->reloc_count += 1;
8756 htab->brlt->flags |= SEC_RELOC;
8760 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
8761 off = (br_entry->offset
8762 + htab->brlt->output_offset
8763 + htab->brlt->output_section->vma
8764 - elf_gp (htab->brlt->output_section->owner)
8765 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8768 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
8771 if (PPC_HA (indx) != 0)
8777 if (PPC_HA (indx) != 0)
8780 if (PPC_HA (r2off) != 0)
8784 else if (info->emitrelocations)
8786 stub_entry->stub_sec->reloc_count += 1;
8787 stub_entry->stub_sec->flags |= SEC_RELOC;
8791 stub_entry->stub_sec->size += size;
8795 /* Set up various things so that we can make a list of input sections
8796 for each output section included in the link. Returns -1 on error,
8797 0 when no stubs will be needed, and 1 on success. */
8800 ppc64_elf_setup_section_lists (bfd *output_bfd,
8801 struct bfd_link_info *info,
8805 int top_id, top_index, id;
8807 asection **input_list;
8809 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8811 htab->no_multi_toc = no_multi_toc;
8813 if (htab->brlt == NULL)
8816 /* Find the top input section id. */
8817 for (input_bfd = info->input_bfds, top_id = 3;
8819 input_bfd = input_bfd->link_next)
8821 for (section = input_bfd->sections;
8823 section = section->next)
8825 if (top_id < section->id)
8826 top_id = section->id;
8830 htab->top_id = top_id;
8831 amt = sizeof (struct map_stub) * (top_id + 1);
8832 htab->stub_group = bfd_zmalloc (amt);
8833 if (htab->stub_group == NULL)
8836 /* Set toc_off for com, und, abs and ind sections. */
8837 for (id = 0; id < 3; id++)
8838 htab->stub_group[id].toc_off = TOC_BASE_OFF;
8840 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
8842 /* We can't use output_bfd->section_count here to find the top output
8843 section index as some sections may have been removed, and
8844 strip_excluded_output_sections doesn't renumber the indices. */
8845 for (section = output_bfd->sections, top_index = 0;
8847 section = section->next)
8849 if (top_index < section->index)
8850 top_index = section->index;
8853 htab->top_index = top_index;
8854 amt = sizeof (asection *) * (top_index + 1);
8855 input_list = bfd_zmalloc (amt);
8856 htab->input_list = input_list;
8857 if (input_list == NULL)
8863 /* The linker repeatedly calls this function for each TOC input section
8864 and linker generated GOT section. Group input bfds such that the toc
8865 within a group is less than 64k in size. Will break with cute linker
8866 scripts that play games with dot in the output toc section. */
8869 ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
8871 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8873 if (!htab->no_multi_toc)
8875 bfd_vma addr = isec->output_offset + isec->output_section->vma;
8876 bfd_vma off = addr - htab->toc_curr;
8878 if (off + isec->size > 0x10000)
8879 htab->toc_curr = addr;
8881 elf_gp (isec->owner) = (htab->toc_curr
8882 - elf_gp (isec->output_section->owner)
8887 /* Called after the last call to the above function. */
8890 ppc64_elf_reinit_toc (bfd *output_bfd, struct bfd_link_info *info)
8892 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8894 htab->multi_toc_needed = htab->toc_curr != elf_gp (output_bfd);
8896 /* toc_curr tracks the TOC offset used for code sections below in
8897 ppc64_elf_next_input_section. Start off at 0x8000. */
8898 htab->toc_curr = TOC_BASE_OFF;
8901 /* No toc references were found in ISEC. If the code in ISEC makes no
8902 calls, then there's no need to use toc adjusting stubs when branching
8903 into ISEC. Actually, indirect calls from ISEC are OK as they will
8904 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
8905 needed, and 2 if a cyclical call-graph was found but no other reason
8906 for a stub was detected. If called from the top level, a return of
8907 2 means the same as a return of 0. */
8910 toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
8912 Elf_Internal_Rela *relstart, *rel;
8913 Elf_Internal_Sym *local_syms;
8915 struct ppc_link_hash_table *htab;
8917 /* We know none of our code bearing sections will need toc stubs. */
8918 if ((isec->flags & SEC_LINKER_CREATED) != 0)
8921 if (isec->size == 0)
8924 if (isec->output_section == NULL)
8927 if (isec->reloc_count == 0)
8930 relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL,
8932 if (relstart == NULL)
8935 /* Look for branches to outside of this section. */
8938 htab = ppc_hash_table (info);
8939 for (rel = relstart; rel < relstart + isec->reloc_count; ++rel)
8941 enum elf_ppc64_reloc_type r_type;
8942 unsigned long r_symndx;
8943 struct elf_link_hash_entry *h;
8944 Elf_Internal_Sym *sym;
8946 struct _opd_sec_data *opd;
8950 r_type = ELF64_R_TYPE (rel->r_info);
8951 if (r_type != R_PPC64_REL24
8952 && r_type != R_PPC64_REL14
8953 && r_type != R_PPC64_REL14_BRTAKEN
8954 && r_type != R_PPC64_REL14_BRNTAKEN)
8957 r_symndx = ELF64_R_SYM (rel->r_info);
8958 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx,
8965 /* Calls to dynamic lib functions go through a plt call stub
8966 that uses r2. Branches to undefined symbols might be a call
8967 using old-style dot symbols that can be satisfied by a plt
8968 call into a new-style dynamic library. */
8969 if (sym_sec == NULL)
8971 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
8974 && eh->oh->elf.plt.plist != NULL)
8980 /* Ignore other undefined symbols. */
8984 /* Assume branches to other sections not included in the link need
8985 stubs too, to cover -R and absolute syms. */
8986 if (sym_sec->output_section == NULL)
8993 sym_value = sym->st_value;
8996 if (h->root.type != bfd_link_hash_defined
8997 && h->root.type != bfd_link_hash_defweak)
8999 sym_value = h->root.u.def.value;
9001 sym_value += rel->r_addend;
9003 /* If this branch reloc uses an opd sym, find the code section. */
9004 opd = get_opd_info (sym_sec);
9007 if (h == NULL && opd->adjust != NULL)
9011 adjust = opd->adjust[sym->st_value / 8];
9013 /* Assume deleted functions won't ever be called. */
9015 sym_value += adjust;
9018 dest = opd_entry_value (sym_sec, sym_value, &sym_sec, NULL);
9019 if (dest == (bfd_vma) -1)
9024 + sym_sec->output_offset
9025 + sym_sec->output_section->vma);
9027 /* Ignore branch to self. */
9028 if (sym_sec == isec)
9031 /* If the called function uses the toc, we need a stub. */
9032 if (sym_sec->has_toc_reloc
9033 || sym_sec->makes_toc_func_call)
9039 /* Assume any branch that needs a long branch stub might in fact
9040 need a plt_branch stub. A plt_branch stub uses r2. */
9041 else if (dest - (isec->output_offset
9042 + isec->output_section->vma
9043 + rel->r_offset) + (1 << 25) >= (2 << 25))
9049 /* If calling back to a section in the process of being tested, we
9050 can't say for sure that no toc adjusting stubs are needed, so
9051 don't return zero. */
9052 else if (sym_sec->call_check_in_progress)
9055 /* Branches to another section that itself doesn't have any TOC
9056 references are OK. Recursively call ourselves to check. */
9057 else if (sym_sec->id <= htab->top_id
9058 && htab->stub_group[sym_sec->id].toc_off == 0)
9062 /* Mark current section as indeterminate, so that other
9063 sections that call back to current won't be marked as
9065 isec->call_check_in_progress = 1;
9066 recur = toc_adjusting_stub_needed (info, sym_sec);
9067 isec->call_check_in_progress = 0;
9071 /* An error. Exit. */
9075 else if (recur <= 1)
9077 /* Known result. Mark as checked and set section flag. */
9078 htab->stub_group[sym_sec->id].toc_off = 1;
9081 sym_sec->makes_toc_func_call = 1;
9088 /* Unknown result. Continue checking. */
9094 if (local_syms != NULL
9095 && (elf_tdata (isec->owner)->symtab_hdr.contents
9096 != (unsigned char *) local_syms))
9098 if (elf_section_data (isec)->relocs != relstart)
9104 /* The linker repeatedly calls this function for each input section,
9105 in the order that input sections are linked into output sections.
9106 Build lists of input sections to determine groupings between which
9107 we may insert linker stubs. */
9110 ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
9112 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9114 if ((isec->output_section->flags & SEC_CODE) != 0
9115 && isec->output_section->index <= htab->top_index)
9117 asection **list = htab->input_list + isec->output_section->index;
9118 /* Steal the link_sec pointer for our list. */
9119 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
9120 /* This happens to make the list in reverse order,
9121 which is what we want. */
9122 PREV_SEC (isec) = *list;
9126 if (htab->multi_toc_needed)
9128 /* If a code section has a function that uses the TOC then we need
9129 to use the right TOC (obviously). Also, make sure that .opd gets
9130 the correct TOC value for R_PPC64_TOC relocs that don't have or
9131 can't find their function symbol (shouldn't ever happen now).
9132 Also specially treat .fixup for the linux kernel. .fixup
9133 contains branches, but only back to the function that hit an
9135 if (isec->has_toc_reloc
9136 || (isec->flags & SEC_CODE) == 0
9137 || strcmp (isec->name, ".fixup") == 0)
9139 if (elf_gp (isec->owner) != 0)
9140 htab->toc_curr = elf_gp (isec->owner);
9142 else if (htab->stub_group[isec->id].toc_off == 0)
9144 int ret = toc_adjusting_stub_needed (info, isec);
9148 isec->makes_toc_func_call = ret & 1;
9152 /* Functions that don't use the TOC can belong in any TOC group.
9153 Use the last TOC base. This happens to make _init and _fini
9155 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9159 /* See whether we can group stub sections together. Grouping stub
9160 sections may result in fewer stubs. More importantly, we need to
9161 put all .init* and .fini* stubs at the beginning of the .init or
9162 .fini output sections respectively, because glibc splits the
9163 _init and _fini functions into multiple parts. Putting a stub in
9164 the middle of a function is not a good idea. */
9167 group_sections (struct ppc_link_hash_table *htab,
9168 bfd_size_type stub_group_size,
9169 bfd_boolean stubs_always_before_branch)
9172 bfd_size_type stub14_group_size;
9173 bfd_boolean suppress_size_errors;
9175 suppress_size_errors = FALSE;
9176 stub14_group_size = stub_group_size;
9177 if (stub_group_size == 1)
9179 /* Default values. */
9180 if (stubs_always_before_branch)
9182 stub_group_size = 0x1e00000;
9183 stub14_group_size = 0x7800;
9187 stub_group_size = 0x1c00000;
9188 stub14_group_size = 0x7000;
9190 suppress_size_errors = TRUE;
9193 list = htab->input_list + htab->top_index;
9196 asection *tail = *list;
9197 while (tail != NULL)
9201 bfd_size_type total;
9202 bfd_boolean big_sec;
9207 big_sec = total > (ppc64_elf_section_data (tail)->has_14bit_branch
9208 ? stub14_group_size : stub_group_size);
9209 if (big_sec && !suppress_size_errors)
9210 (*_bfd_error_handler) (_("%B section %A exceeds stub group size"),
9212 curr_toc = htab->stub_group[tail->id].toc_off;
9214 while ((prev = PREV_SEC (curr)) != NULL
9215 && ((total += curr->output_offset - prev->output_offset)
9216 < (ppc64_elf_section_data (prev)->has_14bit_branch
9217 ? stub14_group_size : stub_group_size))
9218 && htab->stub_group[prev->id].toc_off == curr_toc)
9221 /* OK, the size from the start of CURR to the end is less
9222 than stub_group_size and thus can be handled by one stub
9223 section. (or the tail section is itself larger than
9224 stub_group_size, in which case we may be toast.) We
9225 should really be keeping track of the total size of stubs
9226 added here, as stubs contribute to the final output
9227 section size. That's a little tricky, and this way will
9228 only break if stubs added make the total size more than
9229 2^25, ie. for the default stub_group_size, if stubs total
9230 more than 2097152 bytes, or nearly 75000 plt call stubs. */
9233 prev = PREV_SEC (tail);
9234 /* Set up this stub group. */
9235 htab->stub_group[tail->id].link_sec = curr;
9237 while (tail != curr && (tail = prev) != NULL);
9239 /* But wait, there's more! Input sections up to stub_group_size
9240 bytes before the stub section can be handled by it too.
9241 Don't do this if we have a really large section after the
9242 stubs, as adding more stubs increases the chance that
9243 branches may not reach into the stub section. */
9244 if (!stubs_always_before_branch && !big_sec)
9248 && ((total += tail->output_offset - prev->output_offset)
9249 < (ppc64_elf_section_data (prev)->has_14bit_branch
9250 ? stub14_group_size : stub_group_size))
9251 && htab->stub_group[prev->id].toc_off == curr_toc)
9254 prev = PREV_SEC (tail);
9255 htab->stub_group[tail->id].link_sec = curr;
9261 while (list-- != htab->input_list);
9262 free (htab->input_list);
9266 /* Determine and set the size of the stub section for a final link.
9268 The basic idea here is to examine all the relocations looking for
9269 PC-relative calls to a target that is unreachable with a "bl"
9273 ppc64_elf_size_stubs (bfd *output_bfd,
9274 struct bfd_link_info *info,
9275 bfd_signed_vma group_size,
9276 asection *(*add_stub_section) (const char *, asection *),
9277 void (*layout_sections_again) (void))
9279 bfd_size_type stub_group_size;
9280 bfd_boolean stubs_always_before_branch;
9281 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9283 /* Stash our params away. */
9284 htab->add_stub_section = add_stub_section;
9285 htab->layout_sections_again = layout_sections_again;
9286 stubs_always_before_branch = group_size < 0;
9288 stub_group_size = -group_size;
9290 stub_group_size = group_size;
9292 group_sections (htab, stub_group_size, stubs_always_before_branch);
9297 unsigned int bfd_indx;
9300 htab->stub_iteration += 1;
9302 for (input_bfd = info->input_bfds, bfd_indx = 0;
9304 input_bfd = input_bfd->link_next, bfd_indx++)
9306 Elf_Internal_Shdr *symtab_hdr;
9308 Elf_Internal_Sym *local_syms = NULL;
9310 if (!is_ppc64_elf_target (input_bfd->xvec))
9313 /* We'll need the symbol table in a second. */
9314 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
9315 if (symtab_hdr->sh_info == 0)
9318 /* Walk over each section attached to the input bfd. */
9319 for (section = input_bfd->sections;
9321 section = section->next)
9323 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
9325 /* If there aren't any relocs, then there's nothing more
9327 if ((section->flags & SEC_RELOC) == 0
9328 || (section->flags & SEC_ALLOC) == 0
9329 || (section->flags & SEC_LOAD) == 0
9330 || (section->flags & SEC_CODE) == 0
9331 || section->reloc_count == 0)
9334 /* If this section is a link-once section that will be
9335 discarded, then don't create any stubs. */
9336 if (section->output_section == NULL
9337 || section->output_section->owner != output_bfd)
9340 /* Get the relocs. */
9342 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
9344 if (internal_relocs == NULL)
9345 goto error_ret_free_local;
9347 /* Now examine each relocation. */
9348 irela = internal_relocs;
9349 irelaend = irela + section->reloc_count;
9350 for (; irela < irelaend; irela++)
9352 enum elf_ppc64_reloc_type r_type;
9353 unsigned int r_indx;
9354 enum ppc_stub_type stub_type;
9355 struct ppc_stub_hash_entry *stub_entry;
9356 asection *sym_sec, *code_sec;
9358 bfd_vma destination;
9359 bfd_boolean ok_dest;
9360 struct ppc_link_hash_entry *hash;
9361 struct ppc_link_hash_entry *fdh;
9362 struct elf_link_hash_entry *h;
9363 Elf_Internal_Sym *sym;
9365 const asection *id_sec;
9366 struct _opd_sec_data *opd;
9368 r_type = ELF64_R_TYPE (irela->r_info);
9369 r_indx = ELF64_R_SYM (irela->r_info);
9371 if (r_type >= R_PPC64_max)
9373 bfd_set_error (bfd_error_bad_value);
9374 goto error_ret_free_internal;
9377 /* Only look for stubs on branch instructions. */
9378 if (r_type != R_PPC64_REL24
9379 && r_type != R_PPC64_REL14
9380 && r_type != R_PPC64_REL14_BRTAKEN
9381 && r_type != R_PPC64_REL14_BRNTAKEN)
9384 /* Now determine the call target, its name, value,
9386 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9388 goto error_ret_free_internal;
9389 hash = (struct ppc_link_hash_entry *) h;
9396 sym_value = sym->st_value;
9399 else if (hash->elf.root.type == bfd_link_hash_defined
9400 || hash->elf.root.type == bfd_link_hash_defweak)
9402 sym_value = hash->elf.root.u.def.value;
9403 if (sym_sec->output_section != NULL)
9406 else if (hash->elf.root.type == bfd_link_hash_undefweak
9407 || hash->elf.root.type == bfd_link_hash_undefined)
9409 /* Recognise an old ABI func code entry sym, and
9410 use the func descriptor sym instead if it is
9412 if (hash->elf.root.root.string[0] == '.'
9413 && (fdh = get_fdh (hash, htab)) != NULL)
9415 if (fdh->elf.root.type == bfd_link_hash_defined
9416 || fdh->elf.root.type == bfd_link_hash_defweak)
9418 sym_sec = fdh->elf.root.u.def.section;
9419 sym_value = fdh->elf.root.u.def.value;
9420 if (sym_sec->output_section != NULL)
9429 bfd_set_error (bfd_error_bad_value);
9430 goto error_ret_free_internal;
9436 sym_value += irela->r_addend;
9437 destination = (sym_value
9438 + sym_sec->output_offset
9439 + sym_sec->output_section->vma);
9443 opd = get_opd_info (sym_sec);
9448 if (hash == NULL && opd->adjust != NULL)
9450 long adjust = opd->adjust[sym_value / 8];
9453 sym_value += adjust;
9455 dest = opd_entry_value (sym_sec, sym_value,
9456 &code_sec, &sym_value);
9457 if (dest != (bfd_vma) -1)
9462 /* Fixup old ABI sym to point at code
9464 hash->elf.root.type = bfd_link_hash_defweak;
9465 hash->elf.root.u.def.section = code_sec;
9466 hash->elf.root.u.def.value = sym_value;
9471 /* Determine what (if any) linker stub is needed. */
9472 stub_type = ppc_type_of_stub (section, irela, &hash,
9475 if (stub_type != ppc_stub_plt_call)
9477 /* Check whether we need a TOC adjusting stub.
9478 Since the linker pastes together pieces from
9479 different object files when creating the
9480 _init and _fini functions, it may be that a
9481 call to what looks like a local sym is in
9482 fact a call needing a TOC adjustment. */
9483 if (code_sec != NULL
9484 && code_sec->output_section != NULL
9485 && (htab->stub_group[code_sec->id].toc_off
9486 != htab->stub_group[section->id].toc_off)
9487 && (code_sec->has_toc_reloc
9488 || code_sec->makes_toc_func_call))
9489 stub_type = ppc_stub_long_branch_r2off;
9492 if (stub_type == ppc_stub_none)
9495 /* __tls_get_addr calls might be eliminated. */
9496 if (stub_type != ppc_stub_plt_call
9498 && (hash == htab->tls_get_addr
9499 || hash == htab->tls_get_addr_fd)
9500 && section->has_tls_reloc
9501 && irela != internal_relocs)
9506 if (!get_tls_mask (&tls_mask, NULL, &local_syms,
9507 irela - 1, input_bfd))
9508 goto error_ret_free_internal;
9513 /* Support for grouping stub sections. */
9514 id_sec = htab->stub_group[section->id].link_sec;
9516 /* Get the name of this stub. */
9517 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
9519 goto error_ret_free_internal;
9521 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
9522 stub_name, FALSE, FALSE);
9523 if (stub_entry != NULL)
9525 /* The proper stub has already been created. */
9530 stub_entry = ppc_add_stub (stub_name, section, htab);
9531 if (stub_entry == NULL)
9534 error_ret_free_internal:
9535 if (elf_section_data (section)->relocs == NULL)
9536 free (internal_relocs);
9537 error_ret_free_local:
9538 if (local_syms != NULL
9539 && (symtab_hdr->contents
9540 != (unsigned char *) local_syms))
9545 stub_entry->stub_type = stub_type;
9546 stub_entry->target_value = sym_value;
9547 stub_entry->target_section = code_sec;
9548 stub_entry->h = hash;
9549 stub_entry->addend = irela->r_addend;
9551 if (stub_entry->h != NULL)
9552 htab->stub_globals += 1;
9555 /* We're done with the internal relocs, free them. */
9556 if (elf_section_data (section)->relocs != internal_relocs)
9557 free (internal_relocs);
9560 if (local_syms != NULL
9561 && symtab_hdr->contents != (unsigned char *) local_syms)
9563 if (!info->keep_memory)
9566 symtab_hdr->contents = (unsigned char *) local_syms;
9570 /* We may have added some stubs. Find out the new size of the
9572 for (stub_sec = htab->stub_bfd->sections;
9574 stub_sec = stub_sec->next)
9575 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
9577 stub_sec->rawsize = stub_sec->size;
9579 stub_sec->reloc_count = 0;
9580 stub_sec->flags &= ~SEC_RELOC;
9583 htab->brlt->size = 0;
9584 htab->brlt->reloc_count = 0;
9585 htab->brlt->flags &= ~SEC_RELOC;
9586 if (htab->relbrlt != NULL)
9587 htab->relbrlt->size = 0;
9589 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
9591 for (stub_sec = htab->stub_bfd->sections;
9593 stub_sec = stub_sec->next)
9594 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
9595 && stub_sec->rawsize != stub_sec->size)
9598 /* Exit from this loop when no stubs have been added, and no stubs
9599 have changed size. */
9600 if (stub_sec == NULL)
9603 /* Ask the linker to do its stuff. */
9604 (*htab->layout_sections_again) ();
9607 /* It would be nice to strip htab->brlt from the output if the
9608 section is empty, but it's too late. If we strip sections here,
9609 the dynamic symbol table is corrupted since the section symbol
9610 for the stripped section isn't written. */
9615 /* Called after we have determined section placement. If sections
9616 move, we'll be called again. Provide a value for TOCstart. */
9619 ppc64_elf_toc (bfd *obfd)
9624 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
9625 order. The TOC starts where the first of these sections starts. */
9626 s = bfd_get_section_by_name (obfd, ".got");
9628 s = bfd_get_section_by_name (obfd, ".toc");
9630 s = bfd_get_section_by_name (obfd, ".tocbss");
9632 s = bfd_get_section_by_name (obfd, ".plt");
9635 /* This may happen for
9636 o references to TOC base (SYM@toc / TOC[tc0]) without a
9639 o --gc-sections and empty TOC sections
9641 FIXME: Warn user? */
9643 /* Look for a likely section. We probably won't even be
9645 for (s = obfd->sections; s != NULL; s = s->next)
9646 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
9647 == (SEC_ALLOC | SEC_SMALL_DATA))
9650 for (s = obfd->sections; s != NULL; s = s->next)
9651 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
9652 == (SEC_ALLOC | SEC_SMALL_DATA))
9655 for (s = obfd->sections; s != NULL; s = s->next)
9656 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
9659 for (s = obfd->sections; s != NULL; s = s->next)
9660 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
9666 TOCstart = s->output_section->vma + s->output_offset;
9671 /* Build all the stubs associated with the current output file.
9672 The stubs are kept in a hash table attached to the main linker
9673 hash table. This function is called via gldelf64ppc_finish. */
9676 ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
9677 struct bfd_link_info *info,
9680 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9683 int stub_sec_count = 0;
9685 htab->emit_stub_syms = emit_stub_syms;
9687 /* Allocate memory to hold the linker stubs. */
9688 for (stub_sec = htab->stub_bfd->sections;
9690 stub_sec = stub_sec->next)
9691 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
9692 && stub_sec->size != 0)
9694 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
9695 if (stub_sec->contents == NULL)
9697 /* We want to check that built size is the same as calculated
9698 size. rawsize is a convenient location to use. */
9699 stub_sec->rawsize = stub_sec->size;
9703 if (htab->glink != NULL && htab->glink->size != 0)
9708 /* Build the .glink plt call stub. */
9709 if (htab->emit_stub_syms)
9711 struct elf_link_hash_entry *h;
9712 h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE);
9715 if (h->root.type == bfd_link_hash_new)
9717 h->root.type = bfd_link_hash_defined;
9718 h->root.u.def.section = htab->glink;
9719 h->root.u.def.value = 8;
9722 h->ref_regular_nonweak = 1;
9723 h->forced_local = 1;
9727 p = htab->glink->contents;
9728 plt0 = (htab->plt->output_section->vma
9729 + htab->plt->output_offset
9730 - (htab->glink->output_section->vma
9731 + htab->glink->output_offset
9733 bfd_put_64 (htab->glink->owner, plt0, p);
9735 bfd_put_32 (htab->glink->owner, MFLR_R12, p);
9737 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
9739 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
9741 bfd_put_32 (htab->glink->owner, LD_R2_M16R11, p);
9743 bfd_put_32 (htab->glink->owner, MTLR_R12, p);
9745 bfd_put_32 (htab->glink->owner, ADD_R12_R2_R11, p);
9747 bfd_put_32 (htab->glink->owner, LD_R11_0R12, p);
9749 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
9751 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
9753 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
9755 bfd_put_32 (htab->glink->owner, BCTR, p);
9757 while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE)
9759 bfd_put_32 (htab->glink->owner, NOP, p);
9763 /* Build the .glink lazy link call stubs. */
9765 while (p < htab->glink->contents + htab->glink->size)
9769 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9774 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9776 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9779 bfd_put_32 (htab->glink->owner,
9780 B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p);
9784 htab->glink->rawsize = p - htab->glink->contents;
9787 if (htab->brlt->size != 0)
9789 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
9791 if (htab->brlt->contents == NULL)
9794 if (htab->relbrlt != NULL && htab->relbrlt->size != 0)
9796 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
9797 htab->relbrlt->size);
9798 if (htab->relbrlt->contents == NULL)
9802 /* Build the stubs as directed by the stub hash table. */
9803 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
9805 if (htab->relbrlt != NULL)
9806 htab->relbrlt->reloc_count = 0;
9808 for (stub_sec = htab->stub_bfd->sections;
9810 stub_sec = stub_sec->next)
9811 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
9813 stub_sec_count += 1;
9814 if (stub_sec->rawsize != stub_sec->size)
9818 if (stub_sec != NULL
9819 || htab->glink->rawsize != htab->glink->size)
9821 htab->stub_error = TRUE;
9822 (*_bfd_error_handler) (_("stubs don't match calculated size"));
9825 if (htab->stub_error)
9830 *stats = bfd_malloc (500);
9834 sprintf (*stats, _("linker stubs in %u group%s\n"
9837 " long branch %lu\n"
9838 " long toc adj %lu\n"
9841 stub_sec_count == 1 ? "" : "s",
9842 htab->stub_count[ppc_stub_long_branch - 1],
9843 htab->stub_count[ppc_stub_long_branch_r2off - 1],
9844 htab->stub_count[ppc_stub_plt_branch - 1],
9845 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
9846 htab->stub_count[ppc_stub_plt_call - 1]);
9851 /* This function undoes the changes made by add_symbol_adjust. */
9854 undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
9856 struct ppc_link_hash_entry *eh;
9858 if (h->root.type == bfd_link_hash_indirect)
9861 if (h->root.type == bfd_link_hash_warning)
9862 h = (struct elf_link_hash_entry *) h->root.u.i.link;
9864 eh = (struct ppc_link_hash_entry *) h;
9865 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
9868 eh->elf.root.type = bfd_link_hash_undefined;
9873 ppc64_elf_restore_symbols (struct bfd_link_info *info)
9875 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9876 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
9879 /* What to do when ld finds relocations against symbols defined in
9880 discarded sections. */
9883 ppc64_elf_action_discarded (asection *sec)
9885 if (strcmp (".opd", sec->name) == 0)
9888 if (strcmp (".toc", sec->name) == 0)
9891 if (strcmp (".toc1", sec->name) == 0)
9894 return _bfd_elf_default_action_discarded (sec);
9897 /* The RELOCATE_SECTION function is called by the ELF backend linker
9898 to handle the relocations for a section.
9900 The relocs are always passed as Rela structures; if the section
9901 actually uses Rel structures, the r_addend field will always be
9904 This function is responsible for adjust the section contents as
9905 necessary, and (if using Rela relocs and generating a
9906 relocatable output file) adjusting the reloc addend as
9909 This function does not have to worry about setting the reloc
9910 address or the reloc symbol index.
9912 LOCAL_SYMS is a pointer to the swapped in local symbols.
9914 LOCAL_SECTIONS is an array giving the section in the input file
9915 corresponding to the st_shndx field of each local symbol.
9917 The global hash table entry for the global symbols can be found
9918 via elf_sym_hashes (input_bfd).
9920 When generating relocatable output, this function must handle
9921 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
9922 going to be the section symbol corresponding to the output
9923 section, which means that the addend must be adjusted
9927 ppc64_elf_relocate_section (bfd *output_bfd,
9928 struct bfd_link_info *info,
9930 asection *input_section,
9932 Elf_Internal_Rela *relocs,
9933 Elf_Internal_Sym *local_syms,
9934 asection **local_sections)
9936 struct ppc_link_hash_table *htab;
9937 Elf_Internal_Shdr *symtab_hdr;
9938 struct elf_link_hash_entry **sym_hashes;
9939 Elf_Internal_Rela *rel;
9940 Elf_Internal_Rela *relend;
9941 Elf_Internal_Rela outrel;
9943 struct got_entry **local_got_ents;
9945 bfd_boolean ret = TRUE;
9947 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
9948 bfd_boolean is_power4 = FALSE;
9949 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
9951 /* Initialize howto table if needed. */
9952 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
9955 htab = ppc_hash_table (info);
9957 /* Don't relocate stub sections. */
9958 if (input_section->owner == htab->stub_bfd)
9961 local_got_ents = elf_local_got_ents (input_bfd);
9962 TOCstart = elf_gp (output_bfd);
9963 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
9964 sym_hashes = elf_sym_hashes (input_bfd);
9965 is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd;
9968 relend = relocs + input_section->reloc_count;
9969 for (; rel < relend; rel++)
9971 enum elf_ppc64_reloc_type r_type;
9972 bfd_vma addend, orig_addend;
9973 bfd_reloc_status_type r;
9974 Elf_Internal_Sym *sym;
9976 struct elf_link_hash_entry *h_elf;
9977 struct ppc_link_hash_entry *h;
9978 struct ppc_link_hash_entry *fdh;
9979 const char *sym_name;
9980 unsigned long r_symndx, toc_symndx;
9981 char tls_mask, tls_gd, tls_type;
9984 bfd_boolean unresolved_reloc;
9986 unsigned long insn, mask;
9987 struct ppc_stub_hash_entry *stub_entry;
9988 bfd_vma max_br_offset;
9991 r_type = ELF64_R_TYPE (rel->r_info);
9992 r_symndx = ELF64_R_SYM (rel->r_info);
9994 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
9995 symbol of the previous ADDR64 reloc. The symbol gives us the
9996 proper TOC base to use. */
9997 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
9999 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
10001 r_symndx = ELF64_R_SYM (rel[-1].r_info);
10007 unresolved_reloc = FALSE;
10009 orig_addend = rel->r_addend;
10011 if (r_symndx < symtab_hdr->sh_info)
10013 /* It's a local symbol. */
10014 struct _opd_sec_data *opd;
10016 sym = local_syms + r_symndx;
10017 sec = local_sections[r_symndx];
10018 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
10019 sym_type = ELF64_ST_TYPE (sym->st_info);
10020 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
10021 opd = get_opd_info (sec);
10022 if (opd != NULL && opd->adjust != NULL)
10024 long adjust = opd->adjust[(sym->st_value + rel->r_addend) / 8];
10029 /* If this is a relocation against the opd section sym
10030 and we have edited .opd, adjust the reloc addend so
10031 that ld -r and ld --emit-relocs output is correct.
10032 If it is a reloc against some other .opd symbol,
10033 then the symbol value will be adjusted later. */
10034 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
10035 rel->r_addend += adjust;
10037 relocation += adjust;
10043 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
10044 r_symndx, symtab_hdr, sym_hashes,
10045 h_elf, sec, relocation,
10046 unresolved_reloc, warned);
10047 sym_name = h_elf->root.root.string;
10048 sym_type = h_elf->type;
10050 h = (struct ppc_link_hash_entry *) h_elf;
10052 if (sec != NULL && elf_discarded_section (sec))
10054 /* For relocs against symbols from removed linkonce sections,
10055 or sections discarded by a linker script, we just want the
10056 section contents zeroed. Avoid any special processing. */
10057 _bfd_clear_contents (ppc64_elf_howto_table[r_type], input_bfd,
10058 contents + rel->r_offset);
10064 if (info->relocatable)
10067 /* TLS optimizations. Replace instruction sequences and relocs
10068 based on information we collected in tls_optimize. We edit
10069 RELOCS so that --emit-relocs will output something sensible
10070 for the final instruction stream. */
10074 if (IS_PPC64_TLS_RELOC (r_type))
10077 tls_mask = h->tls_mask;
10078 else if (local_got_ents != NULL)
10081 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
10082 tls_mask = lgot_masks[r_symndx];
10084 if (tls_mask == 0 && r_type == R_PPC64_TLS)
10086 /* Check for toc tls entries. */
10089 if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
10094 tls_mask = *toc_tls;
10098 /* Check that tls relocs are used with tls syms, and non-tls
10099 relocs are used with non-tls syms. */
10101 && r_type != R_PPC64_NONE
10103 || h->elf.root.type == bfd_link_hash_defined
10104 || h->elf.root.type == bfd_link_hash_defweak)
10105 && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS))
10107 if (r_type == R_PPC64_TLS && tls_mask != 0)
10108 /* R_PPC64_TLS is OK against a symbol in the TOC. */
10111 (*_bfd_error_handler)
10112 (sym_type == STT_TLS
10113 ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
10114 : _("%B(%A+0x%lx): %s used with non-TLS symbol %s"),
10117 (long) rel->r_offset,
10118 ppc64_elf_howto_table[r_type]->name,
10122 /* Ensure reloc mapping code below stays sane. */
10123 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
10124 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
10125 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
10126 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
10127 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
10128 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
10129 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
10130 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
10131 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
10132 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
10140 case R_PPC64_TOC16:
10141 case R_PPC64_TOC16_LO:
10142 case R_PPC64_TOC16_DS:
10143 case R_PPC64_TOC16_LO_DS:
10145 /* Check for toc tls entries. */
10149 retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
10156 tls_mask = *toc_tls;
10157 if (r_type == R_PPC64_TOC16_DS
10158 || r_type == R_PPC64_TOC16_LO_DS)
10161 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
10166 /* If we found a GD reloc pair, then we might be
10167 doing a GD->IE transition. */
10170 tls_gd = TLS_TPRELGD;
10171 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
10174 else if (retval == 3)
10176 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
10184 case R_PPC64_GOT_TPREL16_DS:
10185 case R_PPC64_GOT_TPREL16_LO_DS:
10187 && (tls_mask & TLS_TPREL) == 0)
10190 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
10192 insn |= 0x3c0d0000; /* addis 0,13,0 */
10193 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
10194 r_type = R_PPC64_TPREL16_HA;
10195 if (toc_symndx != 0)
10197 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
10198 /* We changed the symbol. Start over in order to
10199 get h, sym, sec etc. right. */
10204 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10210 && (tls_mask & TLS_TPREL) == 0)
10213 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
10214 if ((insn & ((0x3f << 26) | (31 << 11)))
10215 == ((31 << 26) | (13 << 11)))
10216 rtra = insn & ((1 << 26) - (1 << 16));
10217 else if ((insn & ((0x3f << 26) | (31 << 16)))
10218 == ((31 << 26) | (13 << 16)))
10219 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
10222 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
10225 else if ((insn & (31 << 1)) == 23 << 1
10226 && ((insn & (31 << 6)) < 14 << 6
10227 || ((insn & (31 << 6)) >= 16 << 6
10228 && (insn & (31 << 6)) < 24 << 6)))
10229 /* load and store indexed -> dform. */
10230 insn = (32 | ((insn >> 6) & 31)) << 26;
10231 else if ((insn & (31 << 1)) == 21 << 1
10232 && (insn & (0x1a << 6)) == 0)
10233 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
10234 insn = (((58 | ((insn >> 6) & 4)) << 26)
10235 | ((insn >> 6) & 1));
10236 else if ((insn & (31 << 1)) == 21 << 1
10237 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
10239 insn = (58 << 26) | 2;
10243 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
10244 /* Was PPC64_TLS which sits on insn boundary, now
10245 PPC64_TPREL16_LO which is at low-order half-word. */
10246 rel->r_offset += d_offset;
10247 r_type = R_PPC64_TPREL16_LO;
10248 if (toc_symndx != 0)
10250 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
10251 /* We changed the symbol. Start over in order to
10252 get h, sym, sec etc. right. */
10257 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10261 case R_PPC64_GOT_TLSGD16_HI:
10262 case R_PPC64_GOT_TLSGD16_HA:
10263 tls_gd = TLS_TPRELGD;
10264 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
10268 case R_PPC64_GOT_TLSLD16_HI:
10269 case R_PPC64_GOT_TLSLD16_HA:
10270 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
10273 if ((tls_mask & tls_gd) != 0)
10274 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
10275 + R_PPC64_GOT_TPREL16_DS);
10278 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
10279 rel->r_offset -= d_offset;
10280 r_type = R_PPC64_NONE;
10282 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10286 case R_PPC64_GOT_TLSGD16:
10287 case R_PPC64_GOT_TLSGD16_LO:
10288 tls_gd = TLS_TPRELGD;
10289 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
10293 case R_PPC64_GOT_TLSLD16:
10294 case R_PPC64_GOT_TLSLD16_LO:
10295 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
10297 bfd_vma insn1, insn2, insn3;
10301 /* We know that the next reloc is on a tls_get_addr
10302 call, since ppc64_elf_tls_optimize checks this. */
10303 offset = rel[1].r_offset;
10304 insn1 = bfd_get_32 (output_bfd,
10305 contents + rel->r_offset - d_offset);
10306 insn3 = bfd_get_32 (output_bfd,
10307 contents + offset + 4);
10308 if ((tls_mask & tls_gd) != 0)
10311 insn1 &= (1 << 26) - (1 << 2);
10312 insn1 |= 58 << 26; /* ld */
10313 insn2 = 0x7c636a14; /* add 3,3,13 */
10314 rel[1].r_info = ELF64_R_INFO (ELF64_R_SYM (rel[1].r_info),
10316 if ((tls_mask & TLS_EXPLICIT) == 0)
10317 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
10318 + R_PPC64_GOT_TPREL16_DS);
10320 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
10321 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10326 insn1 = 0x3c6d0000; /* addis 3,13,0 */
10327 insn2 = 0x38630000; /* addi 3,3,0 */
10330 /* Was an LD reloc. */
10332 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
10333 rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
10335 else if (toc_symndx != 0)
10336 r_symndx = toc_symndx;
10337 r_type = R_PPC64_TPREL16_HA;
10338 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10339 rel[1].r_info = ELF64_R_INFO (r_symndx,
10340 R_PPC64_TPREL16_LO);
10341 rel[1].r_offset += d_offset;
10344 || insn3 == CROR_151515 || insn3 == CROR_313131)
10348 rel[1].r_offset += 4;
10350 bfd_put_32 (output_bfd, insn1,
10351 contents + rel->r_offset - d_offset);
10352 bfd_put_32 (output_bfd, insn2, contents + offset);
10353 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
10354 if (tls_gd == 0 || toc_symndx != 0)
10356 /* We changed the symbol. Start over in order
10357 to get h, sym, sec etc. right. */
10364 case R_PPC64_DTPMOD64:
10365 if (rel + 1 < relend
10366 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
10367 && rel[1].r_offset == rel->r_offset + 8)
10369 if ((tls_mask & TLS_GD) == 0)
10371 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
10372 if ((tls_mask & TLS_TPRELGD) != 0)
10373 r_type = R_PPC64_TPREL64;
10376 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
10377 r_type = R_PPC64_NONE;
10379 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10384 if ((tls_mask & TLS_LD) == 0)
10386 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
10387 r_type = R_PPC64_NONE;
10388 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10393 case R_PPC64_TPREL64:
10394 if ((tls_mask & TLS_TPREL) == 0)
10396 r_type = R_PPC64_NONE;
10397 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10402 /* Handle other relocations that tweak non-addend part of insn. */
10404 max_br_offset = 1 << 25;
10405 addend = rel->r_addend;
10411 /* Branch taken prediction relocations. */
10412 case R_PPC64_ADDR14_BRTAKEN:
10413 case R_PPC64_REL14_BRTAKEN:
10414 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
10417 /* Branch not taken prediction relocations. */
10418 case R_PPC64_ADDR14_BRNTAKEN:
10419 case R_PPC64_REL14_BRNTAKEN:
10420 insn |= bfd_get_32 (output_bfd,
10421 contents + rel->r_offset) & ~(0x01 << 21);
10424 case R_PPC64_REL14:
10425 max_br_offset = 1 << 15;
10428 case R_PPC64_REL24:
10429 /* Calls to functions with a different TOC, such as calls to
10430 shared objects, need to alter the TOC pointer. This is
10431 done using a linkage stub. A REL24 branching to these
10432 linkage stubs needs to be followed by a nop, as the nop
10433 will be replaced with an instruction to restore the TOC
10438 && (((fdh = h->oh) != NULL
10439 && fdh->elf.plt.plist != NULL)
10440 || (fdh = h)->elf.plt.plist != NULL))
10442 && sec->output_section != NULL
10443 && sec->id <= htab->top_id
10444 && (htab->stub_group[sec->id].toc_off
10445 != htab->stub_group[input_section->id].toc_off)))
10446 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
10447 rel, htab)) != NULL
10448 && (stub_entry->stub_type == ppc_stub_plt_call
10449 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
10450 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
10452 bfd_boolean can_plt_call = FALSE;
10454 if (rel->r_offset + 8 <= input_section->size)
10457 nop = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
10459 || nop == CROR_151515 || nop == CROR_313131)
10461 bfd_put_32 (input_bfd, LD_R2_40R1,
10462 contents + rel->r_offset + 4);
10463 can_plt_call = TRUE;
10469 if (stub_entry->stub_type == ppc_stub_plt_call)
10471 /* If this is a plain branch rather than a branch
10472 and link, don't require a nop. However, don't
10473 allow tail calls in a shared library as they
10474 will result in r2 being corrupted. */
10476 br = bfd_get_32 (input_bfd, contents + rel->r_offset);
10477 if (info->executable && (br & 1) == 0)
10478 can_plt_call = TRUE;
10483 && strcmp (h->elf.root.root.string,
10484 ".__libc_start_main") == 0)
10486 /* Allow crt1 branch to go via a toc adjusting stub. */
10487 can_plt_call = TRUE;
10491 if (strcmp (input_section->output_section->name,
10493 || strcmp (input_section->output_section->name,
10495 (*_bfd_error_handler)
10496 (_("%B(%A+0x%lx): automatic multiple TOCs "
10497 "not supported using your crt files; "
10498 "recompile with -mminimal-toc or upgrade gcc"),
10501 (long) rel->r_offset);
10503 (*_bfd_error_handler)
10504 (_("%B(%A+0x%lx): sibling call optimization to `%s' "
10505 "does not allow automatic multiple TOCs; "
10506 "recompile with -mminimal-toc or "
10507 "-fno-optimize-sibling-calls, "
10508 "or make `%s' extern"),
10511 (long) rel->r_offset,
10514 bfd_set_error (bfd_error_bad_value);
10520 && stub_entry->stub_type == ppc_stub_plt_call)
10521 unresolved_reloc = FALSE;
10524 if (stub_entry == NULL
10525 && get_opd_info (sec) != NULL)
10527 /* The branch destination is the value of the opd entry. */
10528 bfd_vma off = (relocation + addend
10529 - sec->output_section->vma
10530 - sec->output_offset);
10531 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL);
10532 if (dest != (bfd_vma) -1)
10539 /* If the branch is out of reach we ought to have a long
10541 from = (rel->r_offset
10542 + input_section->output_offset
10543 + input_section->output_section->vma);
10545 if (stub_entry == NULL
10546 && (relocation + addend - from + max_br_offset
10547 >= 2 * max_br_offset)
10548 && r_type != R_PPC64_ADDR14_BRTAKEN
10549 && r_type != R_PPC64_ADDR14_BRNTAKEN)
10550 stub_entry = ppc_get_stub_entry (input_section, sec, h, rel,
10553 if (stub_entry != NULL)
10555 /* Munge up the value and addend so that we call the stub
10556 rather than the procedure directly. */
10557 relocation = (stub_entry->stub_offset
10558 + stub_entry->stub_sec->output_offset
10559 + stub_entry->stub_sec->output_section->vma);
10567 /* Set 'a' bit. This is 0b00010 in BO field for branch
10568 on CR(BI) insns (BO == 001at or 011at), and 0b01000
10569 for branch on CTR insns (BO == 1a00t or 1a01t). */
10570 if ((insn & (0x14 << 21)) == (0x04 << 21))
10571 insn |= 0x02 << 21;
10572 else if ((insn & (0x14 << 21)) == (0x10 << 21))
10573 insn |= 0x08 << 21;
10579 /* Invert 'y' bit if not the default. */
10580 if ((bfd_signed_vma) (relocation + addend - from) < 0)
10581 insn ^= 0x01 << 21;
10584 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
10587 /* NOP out calls to undefined weak functions.
10588 We can thus call a weak function without first
10589 checking whether the function is defined. */
10591 && h->elf.root.type == bfd_link_hash_undefweak
10592 && r_type == R_PPC64_REL24
10596 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
10602 /* Set `addend'. */
10607 (*_bfd_error_handler)
10608 (_("%B: unknown relocation type %d for symbol %s"),
10609 input_bfd, (int) r_type, sym_name);
10611 bfd_set_error (bfd_error_bad_value);
10617 case R_PPC64_GNU_VTINHERIT:
10618 case R_PPC64_GNU_VTENTRY:
10621 /* GOT16 relocations. Like an ADDR16 using the symbol's
10622 address in the GOT as relocation value instead of the
10623 symbol's value itself. Also, create a GOT entry for the
10624 symbol and put the symbol value there. */
10625 case R_PPC64_GOT_TLSGD16:
10626 case R_PPC64_GOT_TLSGD16_LO:
10627 case R_PPC64_GOT_TLSGD16_HI:
10628 case R_PPC64_GOT_TLSGD16_HA:
10629 tls_type = TLS_TLS | TLS_GD;
10632 case R_PPC64_GOT_TLSLD16:
10633 case R_PPC64_GOT_TLSLD16_LO:
10634 case R_PPC64_GOT_TLSLD16_HI:
10635 case R_PPC64_GOT_TLSLD16_HA:
10636 tls_type = TLS_TLS | TLS_LD;
10639 case R_PPC64_GOT_TPREL16_DS:
10640 case R_PPC64_GOT_TPREL16_LO_DS:
10641 case R_PPC64_GOT_TPREL16_HI:
10642 case R_PPC64_GOT_TPREL16_HA:
10643 tls_type = TLS_TLS | TLS_TPREL;
10646 case R_PPC64_GOT_DTPREL16_DS:
10647 case R_PPC64_GOT_DTPREL16_LO_DS:
10648 case R_PPC64_GOT_DTPREL16_HI:
10649 case R_PPC64_GOT_DTPREL16_HA:
10650 tls_type = TLS_TLS | TLS_DTPREL;
10653 case R_PPC64_GOT16:
10654 case R_PPC64_GOT16_LO:
10655 case R_PPC64_GOT16_HI:
10656 case R_PPC64_GOT16_HA:
10657 case R_PPC64_GOT16_DS:
10658 case R_PPC64_GOT16_LO_DS:
10661 /* Relocation is to the entry for this symbol in the global
10666 unsigned long indx = 0;
10668 if (tls_type == (TLS_TLS | TLS_LD)
10670 || !h->elf.def_dynamic))
10671 offp = &ppc64_tlsld_got (input_bfd)->offset;
10674 struct got_entry *ent;
10678 bfd_boolean dyn = htab->elf.dynamic_sections_created;
10679 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
10682 && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))
10683 /* This is actually a static link, or it is a
10684 -Bsymbolic link and the symbol is defined
10685 locally, or the symbol was forced to be local
10686 because of a version file. */
10690 indx = h->elf.dynindx;
10691 unresolved_reloc = FALSE;
10693 ent = h->elf.got.glist;
10697 if (local_got_ents == NULL)
10699 ent = local_got_ents[r_symndx];
10702 for (; ent != NULL; ent = ent->next)
10703 if (ent->addend == orig_addend
10704 && ent->owner == input_bfd
10705 && ent->tls_type == tls_type)
10709 offp = &ent->got.offset;
10712 got = ppc64_elf_tdata (input_bfd)->got;
10716 /* The offset must always be a multiple of 8. We use the
10717 least significant bit to record whether we have already
10718 processed this entry. */
10720 if ((off & 1) != 0)
10724 /* Generate relocs for the dynamic linker, except in
10725 the case of TLSLD where we'll use one entry per
10727 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
10730 if ((info->shared || indx != 0)
10732 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
10733 || h->elf.root.type != bfd_link_hash_undefweak))
10735 outrel.r_offset = (got->output_section->vma
10736 + got->output_offset
10738 outrel.r_addend = addend;
10739 if (tls_type & (TLS_LD | TLS_GD))
10741 outrel.r_addend = 0;
10742 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
10743 if (tls_type == (TLS_TLS | TLS_GD))
10745 loc = relgot->contents;
10746 loc += (relgot->reloc_count++
10747 * sizeof (Elf64_External_Rela));
10748 bfd_elf64_swap_reloca_out (output_bfd,
10750 outrel.r_offset += 8;
10751 outrel.r_addend = addend;
10753 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
10756 else if (tls_type == (TLS_TLS | TLS_DTPREL))
10757 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
10758 else if (tls_type == (TLS_TLS | TLS_TPREL))
10759 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
10760 else if (indx == 0)
10762 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
10764 /* Write the .got section contents for the sake
10766 loc = got->contents + off;
10767 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
10771 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
10773 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
10775 outrel.r_addend += relocation;
10776 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
10777 outrel.r_addend -= htab->elf.tls_sec->vma;
10779 loc = relgot->contents;
10780 loc += (relgot->reloc_count++
10781 * sizeof (Elf64_External_Rela));
10782 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
10785 /* Init the .got section contents here if we're not
10786 emitting a reloc. */
10789 relocation += addend;
10790 if (tls_type == (TLS_TLS | TLS_LD))
10792 else if (tls_type != 0)
10794 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
10795 if (tls_type == (TLS_TLS | TLS_TPREL))
10796 relocation += DTP_OFFSET - TP_OFFSET;
10798 if (tls_type == (TLS_TLS | TLS_GD))
10800 bfd_put_64 (output_bfd, relocation,
10801 got->contents + off + 8);
10806 bfd_put_64 (output_bfd, relocation,
10807 got->contents + off);
10811 if (off >= (bfd_vma) -2)
10814 relocation = got->output_offset + off;
10816 /* TOC base (r2) is TOC start plus 0x8000. */
10817 addend = -TOC_BASE_OFF;
10821 case R_PPC64_PLT16_HA:
10822 case R_PPC64_PLT16_HI:
10823 case R_PPC64_PLT16_LO:
10824 case R_PPC64_PLT32:
10825 case R_PPC64_PLT64:
10826 /* Relocation is to the entry for this symbol in the
10827 procedure linkage table. */
10829 /* Resolve a PLT reloc against a local symbol directly,
10830 without using the procedure linkage table. */
10834 /* It's possible that we didn't make a PLT entry for this
10835 symbol. This happens when statically linking PIC code,
10836 or when using -Bsymbolic. Go find a match if there is a
10838 if (htab->plt != NULL)
10840 struct plt_entry *ent;
10841 for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next)
10842 if (ent->addend == orig_addend
10843 && ent->plt.offset != (bfd_vma) -1)
10845 relocation = (htab->plt->output_section->vma
10846 + htab->plt->output_offset
10847 + ent->plt.offset);
10848 unresolved_reloc = FALSE;
10854 /* Relocation value is TOC base. */
10855 relocation = TOCstart;
10857 relocation += htab->stub_group[input_section->id].toc_off;
10858 else if (unresolved_reloc)
10860 else if (sec != NULL && sec->id <= htab->top_id)
10861 relocation += htab->stub_group[sec->id].toc_off;
10863 unresolved_reloc = TRUE;
10866 /* TOC16 relocs. We want the offset relative to the TOC base,
10867 which is the address of the start of the TOC plus 0x8000.
10868 The TOC consists of sections .got, .toc, .tocbss, and .plt,
10870 case R_PPC64_TOC16:
10871 case R_PPC64_TOC16_LO:
10872 case R_PPC64_TOC16_HI:
10873 case R_PPC64_TOC16_DS:
10874 case R_PPC64_TOC16_LO_DS:
10875 case R_PPC64_TOC16_HA:
10876 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
10879 /* Relocate against the beginning of the section. */
10880 case R_PPC64_SECTOFF:
10881 case R_PPC64_SECTOFF_LO:
10882 case R_PPC64_SECTOFF_HI:
10883 case R_PPC64_SECTOFF_DS:
10884 case R_PPC64_SECTOFF_LO_DS:
10885 case R_PPC64_SECTOFF_HA:
10887 addend -= sec->output_section->vma;
10890 case R_PPC64_REL14:
10891 case R_PPC64_REL14_BRNTAKEN:
10892 case R_PPC64_REL14_BRTAKEN:
10893 case R_PPC64_REL24:
10896 case R_PPC64_TPREL16:
10897 case R_PPC64_TPREL16_LO:
10898 case R_PPC64_TPREL16_HI:
10899 case R_PPC64_TPREL16_HA:
10900 case R_PPC64_TPREL16_DS:
10901 case R_PPC64_TPREL16_LO_DS:
10902 case R_PPC64_TPREL16_HIGHER:
10903 case R_PPC64_TPREL16_HIGHERA:
10904 case R_PPC64_TPREL16_HIGHEST:
10905 case R_PPC64_TPREL16_HIGHESTA:
10906 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
10908 /* The TPREL16 relocs shouldn't really be used in shared
10909 libs as they will result in DT_TEXTREL being set, but
10910 support them anyway. */
10914 case R_PPC64_DTPREL16:
10915 case R_PPC64_DTPREL16_LO:
10916 case R_PPC64_DTPREL16_HI:
10917 case R_PPC64_DTPREL16_HA:
10918 case R_PPC64_DTPREL16_DS:
10919 case R_PPC64_DTPREL16_LO_DS:
10920 case R_PPC64_DTPREL16_HIGHER:
10921 case R_PPC64_DTPREL16_HIGHERA:
10922 case R_PPC64_DTPREL16_HIGHEST:
10923 case R_PPC64_DTPREL16_HIGHESTA:
10924 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
10927 case R_PPC64_DTPMOD64:
10932 case R_PPC64_TPREL64:
10933 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
10936 case R_PPC64_DTPREL64:
10937 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
10940 /* Relocations that may need to be propagated if this is a
10942 case R_PPC64_REL30:
10943 case R_PPC64_REL32:
10944 case R_PPC64_REL64:
10945 case R_PPC64_ADDR14:
10946 case R_PPC64_ADDR14_BRNTAKEN:
10947 case R_PPC64_ADDR14_BRTAKEN:
10948 case R_PPC64_ADDR16:
10949 case R_PPC64_ADDR16_DS:
10950 case R_PPC64_ADDR16_HA:
10951 case R_PPC64_ADDR16_HI:
10952 case R_PPC64_ADDR16_HIGHER:
10953 case R_PPC64_ADDR16_HIGHERA:
10954 case R_PPC64_ADDR16_HIGHEST:
10955 case R_PPC64_ADDR16_HIGHESTA:
10956 case R_PPC64_ADDR16_LO:
10957 case R_PPC64_ADDR16_LO_DS:
10958 case R_PPC64_ADDR24:
10959 case R_PPC64_ADDR32:
10960 case R_PPC64_ADDR64:
10961 case R_PPC64_UADDR16:
10962 case R_PPC64_UADDR32:
10963 case R_PPC64_UADDR64:
10965 if ((input_section->flags & SEC_ALLOC) == 0)
10968 if (NO_OPD_RELOCS && is_opd)
10973 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
10974 || h->elf.root.type != bfd_link_hash_undefweak)
10975 && (MUST_BE_DYN_RELOC (r_type)
10976 || !SYMBOL_CALLS_LOCAL (info, &h->elf)))
10977 || (ELIMINATE_COPY_RELOCS
10980 && h->elf.dynindx != -1
10981 && !h->elf.non_got_ref
10982 && h->elf.def_dynamic
10983 && !h->elf.def_regular))
10985 Elf_Internal_Rela outrel;
10986 bfd_boolean skip, relocate;
10991 /* When generating a dynamic object, these relocations
10992 are copied into the output file to be resolved at run
10998 out_off = _bfd_elf_section_offset (output_bfd, info,
10999 input_section, rel->r_offset);
11000 if (out_off == (bfd_vma) -1)
11002 else if (out_off == (bfd_vma) -2)
11003 skip = TRUE, relocate = TRUE;
11004 out_off += (input_section->output_section->vma
11005 + input_section->output_offset);
11006 outrel.r_offset = out_off;
11007 outrel.r_addend = rel->r_addend;
11009 /* Optimize unaligned reloc use. */
11010 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
11011 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
11012 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
11013 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
11014 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
11015 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
11016 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
11017 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
11018 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
11021 memset (&outrel, 0, sizeof outrel);
11022 else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
11024 && r_type != R_PPC64_TOC)
11025 outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
11028 /* This symbol is local, or marked to become local,
11029 or this is an opd section reloc which must point
11030 at a local function. */
11031 outrel.r_addend += relocation;
11032 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
11034 if (is_opd && h != NULL)
11036 /* Lie about opd entries. This case occurs
11037 when building shared libraries and we
11038 reference a function in another shared
11039 lib. The same thing happens for a weak
11040 definition in an application that's
11041 overridden by a strong definition in a
11042 shared lib. (I believe this is a generic
11043 bug in binutils handling of weak syms.)
11044 In these cases we won't use the opd
11045 entry in this lib. */
11046 unresolved_reloc = FALSE;
11048 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
11050 /* We need to relocate .opd contents for ld.so.
11051 Prelink also wants simple and consistent rules
11052 for relocs. This make all RELATIVE relocs have
11053 *r_offset equal to r_addend. */
11060 if (bfd_is_abs_section (sec))
11062 else if (sec == NULL || sec->owner == NULL)
11064 bfd_set_error (bfd_error_bad_value);
11071 osec = sec->output_section;
11072 indx = elf_section_data (osec)->dynindx;
11076 if ((osec->flags & SEC_READONLY) == 0
11077 && htab->elf.data_index_section != NULL)
11078 osec = htab->elf.data_index_section;
11080 osec = htab->elf.text_index_section;
11081 indx = elf_section_data (osec)->dynindx;
11083 BFD_ASSERT (indx != 0);
11085 /* We are turning this relocation into one
11086 against a section symbol, so subtract out
11087 the output section's address but not the
11088 offset of the input section in the output
11090 outrel.r_addend -= osec->vma;
11093 outrel.r_info = ELF64_R_INFO (indx, r_type);
11097 sreloc = elf_section_data (input_section)->sreloc;
11098 if (sreloc == NULL)
11101 if (sreloc->reloc_count * sizeof (Elf64_External_Rela)
11104 loc = sreloc->contents;
11105 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
11106 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
11108 /* If this reloc is against an external symbol, it will
11109 be computed at runtime, so there's no need to do
11110 anything now. However, for the sake of prelink ensure
11111 that the section contents are a known value. */
11114 unresolved_reloc = FALSE;
11115 /* The value chosen here is quite arbitrary as ld.so
11116 ignores section contents except for the special
11117 case of .opd where the contents might be accessed
11118 before relocation. Choose zero, as that won't
11119 cause reloc overflow. */
11122 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
11123 to improve backward compatibility with older
11125 if (r_type == R_PPC64_ADDR64)
11126 addend = outrel.r_addend;
11127 /* Adjust pc_relative relocs to have zero in *r_offset. */
11128 else if (ppc64_elf_howto_table[r_type]->pc_relative)
11129 addend = (input_section->output_section->vma
11130 + input_section->output_offset
11137 case R_PPC64_GLOB_DAT:
11138 case R_PPC64_JMP_SLOT:
11139 case R_PPC64_RELATIVE:
11140 /* We shouldn't ever see these dynamic relocs in relocatable
11142 /* Fall through. */
11144 case R_PPC64_PLTGOT16:
11145 case R_PPC64_PLTGOT16_DS:
11146 case R_PPC64_PLTGOT16_HA:
11147 case R_PPC64_PLTGOT16_HI:
11148 case R_PPC64_PLTGOT16_LO:
11149 case R_PPC64_PLTGOT16_LO_DS:
11150 case R_PPC64_PLTREL32:
11151 case R_PPC64_PLTREL64:
11152 /* These ones haven't been implemented yet. */
11154 (*_bfd_error_handler)
11155 (_("%B: relocation %s is not supported for symbol %s."),
11157 ppc64_elf_howto_table[r_type]->name, sym_name);
11159 bfd_set_error (bfd_error_invalid_operation);
11164 /* Do any further special processing. */
11170 case R_PPC64_ADDR16_HA:
11171 case R_PPC64_ADDR16_HIGHERA:
11172 case R_PPC64_ADDR16_HIGHESTA:
11173 case R_PPC64_TOC16_HA:
11174 case R_PPC64_SECTOFF_HA:
11175 case R_PPC64_TPREL16_HA:
11176 case R_PPC64_DTPREL16_HA:
11177 case R_PPC64_TPREL16_HIGHER:
11178 case R_PPC64_TPREL16_HIGHERA:
11179 case R_PPC64_TPREL16_HIGHEST:
11180 case R_PPC64_TPREL16_HIGHESTA:
11181 case R_PPC64_DTPREL16_HIGHER:
11182 case R_PPC64_DTPREL16_HIGHERA:
11183 case R_PPC64_DTPREL16_HIGHEST:
11184 case R_PPC64_DTPREL16_HIGHESTA:
11185 /* It's just possible that this symbol is a weak symbol
11186 that's not actually defined anywhere. In that case,
11187 'sec' would be NULL, and we should leave the symbol
11188 alone (it will be set to zero elsewhere in the link). */
11193 case R_PPC64_GOT16_HA:
11194 case R_PPC64_PLTGOT16_HA:
11195 case R_PPC64_PLT16_HA:
11196 case R_PPC64_GOT_TLSGD16_HA:
11197 case R_PPC64_GOT_TLSLD16_HA:
11198 case R_PPC64_GOT_TPREL16_HA:
11199 case R_PPC64_GOT_DTPREL16_HA:
11200 /* Add 0x10000 if sign bit in 0:15 is set.
11201 Bits 0:15 are not used. */
11205 case R_PPC64_ADDR16_DS:
11206 case R_PPC64_ADDR16_LO_DS:
11207 case R_PPC64_GOT16_DS:
11208 case R_PPC64_GOT16_LO_DS:
11209 case R_PPC64_PLT16_LO_DS:
11210 case R_PPC64_SECTOFF_DS:
11211 case R_PPC64_SECTOFF_LO_DS:
11212 case R_PPC64_TOC16_DS:
11213 case R_PPC64_TOC16_LO_DS:
11214 case R_PPC64_PLTGOT16_DS:
11215 case R_PPC64_PLTGOT16_LO_DS:
11216 case R_PPC64_GOT_TPREL16_DS:
11217 case R_PPC64_GOT_TPREL16_LO_DS:
11218 case R_PPC64_GOT_DTPREL16_DS:
11219 case R_PPC64_GOT_DTPREL16_LO_DS:
11220 case R_PPC64_TPREL16_DS:
11221 case R_PPC64_TPREL16_LO_DS:
11222 case R_PPC64_DTPREL16_DS:
11223 case R_PPC64_DTPREL16_LO_DS:
11224 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
11226 /* If this reloc is against an lq insn, then the value must be
11227 a multiple of 16. This is somewhat of a hack, but the
11228 "correct" way to do this by defining _DQ forms of all the
11229 _DS relocs bloats all reloc switches in this file. It
11230 doesn't seem to make much sense to use any of these relocs
11231 in data, so testing the insn should be safe. */
11232 if ((insn & (0x3f << 26)) == (56u << 26))
11234 if (((relocation + addend) & mask) != 0)
11236 (*_bfd_error_handler)
11237 (_("%B: error: relocation %s not a multiple of %d"),
11239 ppc64_elf_howto_table[r_type]->name,
11241 bfd_set_error (bfd_error_bad_value);
11248 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
11249 because such sections are not SEC_ALLOC and thus ld.so will
11250 not process them. */
11251 if (unresolved_reloc
11252 && !((input_section->flags & SEC_DEBUGGING) != 0
11253 && h->elf.def_dynamic))
11255 (*_bfd_error_handler)
11256 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
11259 (long) rel->r_offset,
11260 ppc64_elf_howto_table[(int) r_type]->name,
11261 h->elf.root.root.string);
11265 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
11273 if (r != bfd_reloc_ok)
11275 if (sym_name == NULL)
11276 sym_name = "(null)";
11277 if (r == bfd_reloc_overflow)
11282 && h->elf.root.type == bfd_link_hash_undefweak
11283 && ppc64_elf_howto_table[r_type]->pc_relative)
11285 /* Assume this is a call protected by other code that
11286 detects the symbol is undefined. If this is the case,
11287 we can safely ignore the overflow. If not, the
11288 program is hosed anyway, and a little warning isn't
11294 if (!((*info->callbacks->reloc_overflow)
11295 (info, (h ? &h->elf.root : NULL), sym_name,
11296 ppc64_elf_howto_table[r_type]->name,
11297 orig_addend, input_bfd, input_section, rel->r_offset)))
11302 (*_bfd_error_handler)
11303 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
11306 (long) rel->r_offset,
11307 ppc64_elf_howto_table[r_type]->name,
11315 /* If we're emitting relocations, then shortly after this function
11316 returns, reloc offsets and addends for this section will be
11317 adjusted. Worse, reloc symbol indices will be for the output
11318 file rather than the input. Save a copy of the relocs for
11319 opd_entry_value. */
11320 if (is_opd && (info->emitrelocations || info->relocatable))
11323 amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
11324 rel = bfd_alloc (input_bfd, amt);
11325 BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd_relocs == NULL);
11326 ppc64_elf_tdata (input_bfd)->opd_relocs = rel;
11329 memcpy (rel, relocs, amt);
11334 /* Adjust the value of any local symbols in opd sections. */
11337 ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
11338 const char *name ATTRIBUTE_UNUSED,
11339 Elf_Internal_Sym *elfsym,
11340 asection *input_sec,
11341 struct elf_link_hash_entry *h)
11343 struct _opd_sec_data *opd;
11350 opd = get_opd_info (input_sec);
11351 if (opd == NULL || opd->adjust == NULL)
11354 value = elfsym->st_value - input_sec->output_offset;
11355 if (!info->relocatable)
11356 value -= input_sec->output_section->vma;
11358 adjust = opd->adjust[value / 8];
11360 elfsym->st_value = 0;
11362 elfsym->st_value += adjust;
11366 /* Finish up dynamic symbol handling. We set the contents of various
11367 dynamic sections here. */
11370 ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
11371 struct bfd_link_info *info,
11372 struct elf_link_hash_entry *h,
11373 Elf_Internal_Sym *sym)
11375 struct ppc_link_hash_table *htab;
11376 struct plt_entry *ent;
11377 Elf_Internal_Rela rela;
11380 htab = ppc_hash_table (info);
11382 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
11383 if (ent->plt.offset != (bfd_vma) -1)
11385 /* This symbol has an entry in the procedure linkage
11386 table. Set it up. */
11388 if (htab->plt == NULL
11389 || htab->relplt == NULL
11390 || htab->glink == NULL)
11393 /* Create a JMP_SLOT reloc to inform the dynamic linker to
11394 fill in the PLT entry. */
11395 rela.r_offset = (htab->plt->output_section->vma
11396 + htab->plt->output_offset
11397 + ent->plt.offset);
11398 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
11399 rela.r_addend = ent->addend;
11401 loc = htab->relplt->contents;
11402 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
11403 * sizeof (Elf64_External_Rela));
11404 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
11409 Elf_Internal_Rela rela;
11412 /* This symbol needs a copy reloc. Set it up. */
11414 if (h->dynindx == -1
11415 || (h->root.type != bfd_link_hash_defined
11416 && h->root.type != bfd_link_hash_defweak)
11417 || htab->relbss == NULL)
11420 rela.r_offset = (h->root.u.def.value
11421 + h->root.u.def.section->output_section->vma
11422 + h->root.u.def.section->output_offset);
11423 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
11425 loc = htab->relbss->contents;
11426 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
11427 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
11430 /* Mark some specially defined symbols as absolute. */
11431 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
11432 sym->st_shndx = SHN_ABS;
11437 /* Used to decide how to sort relocs in an optimal manner for the
11438 dynamic linker, before writing them out. */
11440 static enum elf_reloc_type_class
11441 ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
11443 enum elf_ppc64_reloc_type r_type;
11445 r_type = ELF64_R_TYPE (rela->r_info);
11448 case R_PPC64_RELATIVE:
11449 return reloc_class_relative;
11450 case R_PPC64_JMP_SLOT:
11451 return reloc_class_plt;
11453 return reloc_class_copy;
11455 return reloc_class_normal;
11459 /* Finish up the dynamic sections. */
11462 ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
11463 struct bfd_link_info *info)
11465 struct ppc_link_hash_table *htab;
11469 htab = ppc_hash_table (info);
11470 dynobj = htab->elf.dynobj;
11471 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
11473 if (htab->elf.dynamic_sections_created)
11475 Elf64_External_Dyn *dyncon, *dynconend;
11477 if (sdyn == NULL || htab->got == NULL)
11480 dyncon = (Elf64_External_Dyn *) sdyn->contents;
11481 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
11482 for (; dyncon < dynconend; dyncon++)
11484 Elf_Internal_Dyn dyn;
11487 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
11494 case DT_PPC64_GLINK:
11496 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
11497 /* We stupidly defined DT_PPC64_GLINK to be the start
11498 of glink rather than the first entry point, which is
11499 what ld.so needs, and now have a bigger stub to
11500 support automatic multiple TOCs. */
11501 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
11505 s = bfd_get_section_by_name (output_bfd, ".opd");
11508 dyn.d_un.d_ptr = s->vma;
11511 case DT_PPC64_OPDSZ:
11512 s = bfd_get_section_by_name (output_bfd, ".opd");
11515 dyn.d_un.d_val = s->size;
11520 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
11525 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
11529 dyn.d_un.d_val = htab->relplt->size;
11533 /* Don't count procedure linkage table relocs in the
11534 overall reloc count. */
11538 dyn.d_un.d_val -= s->size;
11542 /* We may not be using the standard ELF linker script.
11543 If .rela.plt is the first .rela section, we adjust
11544 DT_RELA to not include it. */
11548 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
11550 dyn.d_un.d_ptr += s->size;
11554 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
11558 if (htab->got != NULL && htab->got->size != 0)
11560 /* Fill in the first entry in the global offset table.
11561 We use it to hold the link-time TOCbase. */
11562 bfd_put_64 (output_bfd,
11563 elf_gp (output_bfd) + TOC_BASE_OFF,
11564 htab->got->contents);
11566 /* Set .got entry size. */
11567 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
11570 if (htab->plt != NULL && htab->plt->size != 0)
11572 /* Set .plt entry size. */
11573 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
11577 /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for
11578 brlt ourselves if emitrelocations. */
11579 if (htab->brlt != NULL
11580 && htab->brlt->reloc_count != 0
11581 && !_bfd_elf_link_output_relocs (output_bfd,
11583 &elf_section_data (htab->brlt)->rel_hdr,
11584 elf_section_data (htab->brlt)->relocs,
11588 /* We need to handle writing out multiple GOT sections ourselves,
11589 since we didn't add them to DYNOBJ. We know dynobj is the first
11591 while ((dynobj = dynobj->link_next) != NULL)
11595 if (!is_ppc64_elf_target (dynobj->xvec))
11598 s = ppc64_elf_tdata (dynobj)->got;
11601 && s->output_section != bfd_abs_section_ptr
11602 && !bfd_set_section_contents (output_bfd, s->output_section,
11603 s->contents, s->output_offset,
11606 s = ppc64_elf_tdata (dynobj)->relgot;
11609 && s->output_section != bfd_abs_section_ptr
11610 && !bfd_set_section_contents (output_bfd, s->output_section,
11611 s->contents, s->output_offset,
11619 #include "elf64-target.h"