1 /* PowerPC64-specific support for 64-bit ELF.
2 Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref
100 #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
101 #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
102 #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
103 #define elf_backend_hide_symbol ppc64_elf_hide_symbol
104 #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
105 #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
106 #define elf_backend_init_index_section _bfd_elf_init_2_index_sections
107 #define elf_backend_action_discarded ppc64_elf_action_discarded
108 #define elf_backend_relocate_section ppc64_elf_relocate_section
109 #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
110 #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
111 #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
112 #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
113 #define elf_backend_special_sections ppc64_elf_special_sections
115 /* The name of the dynamic interpreter. This is put in the .interp
117 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
119 /* The size in bytes of an entry in the procedure linkage table. */
120 #define PLT_ENTRY_SIZE 24
122 /* The initial size of the plt reserved for the dynamic linker. */
123 #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
125 /* TOC base pointers offset from start of TOC. */
126 #define TOC_BASE_OFF 0x8000
128 /* Offset of tp and dtp pointers from start of TLS block. */
129 #define TP_OFFSET 0x7000
130 #define DTP_OFFSET 0x8000
132 /* .plt call stub instructions. The normal stub is like this, but
133 sometimes the .plt entry crosses a 64k boundary and we need to
134 insert an addi to adjust r12. */
135 #define PLT_CALL_STUB_SIZE (7*4)
136 #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
137 #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
138 #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
139 #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
140 #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
141 /* ld %r11,xxx+16@l(%r12) */
142 #define BCTR 0x4e800420 /* bctr */
145 #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,off@ha */
146 #define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,off@l */
147 #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
148 #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
150 #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */
151 #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */
153 #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
155 /* glink call stub instructions. We enter with the index in R0. */
156 #define GLINK_CALL_STUB_SIZE (16*4)
160 #define MFLR_R12 0x7d8802a6 /* mflr %12 */
161 #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */
163 #define MFLR_R11 0x7d6802a6 /* mflr %11 */
164 #define LD_R2_M16R11 0xe84bfff0 /* ld %2,(0b-1b)(%11) */
165 #define MTLR_R12 0x7d8803a6 /* mtlr %12 */
166 #define ADD_R12_R2_R11 0x7d825a14 /* add %12,%2,%11 */
174 #define NOP 0x60000000
176 /* Some other nops. */
177 #define CROR_151515 0x4def7b82
178 #define CROR_313131 0x4ffffb82
180 /* .glink entries for the first 32k functions are two instructions. */
181 #define LI_R0_0 0x38000000 /* li %r0,0 */
182 #define B_DOT 0x48000000 /* b . */
184 /* After that, we need two instructions to load the index, followed by
186 #define LIS_R0_0 0x3c000000 /* lis %r0,0 */
187 #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
189 /* Instructions used by the save and restore reg functions. */
190 #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */
191 #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */
192 #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */
193 #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */
194 #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
195 #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
196 #define LI_R12_0 0x39800000 /* li %r12,0 */
197 #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */
198 #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */
199 #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
200 #define BLR 0x4e800020 /* blr */
202 /* Since .opd is an array of descriptors and each entry will end up
203 with identical R_PPC64_RELATIVE relocs, there is really no need to
204 propagate .opd relocs; The dynamic linker should be taught to
205 relocate .opd without reloc entries. */
206 #ifndef NO_OPD_RELOCS
207 #define NO_OPD_RELOCS 0
210 #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
212 /* Relocation HOWTO's. */
213 static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
215 static reloc_howto_type ppc64_elf_howto_raw[] = {
216 /* This reloc does nothing. */
217 HOWTO (R_PPC64_NONE, /* type */
219 2, /* size (0 = byte, 1 = short, 2 = long) */
221 FALSE, /* pc_relative */
223 complain_overflow_dont, /* complain_on_overflow */
224 bfd_elf_generic_reloc, /* special_function */
225 "R_PPC64_NONE", /* name */
226 FALSE, /* partial_inplace */
229 FALSE), /* pcrel_offset */
231 /* A standard 32 bit relocation. */
232 HOWTO (R_PPC64_ADDR32, /* type */
234 2, /* size (0 = byte, 1 = short, 2 = long) */
236 FALSE, /* pc_relative */
238 complain_overflow_bitfield, /* complain_on_overflow */
239 bfd_elf_generic_reloc, /* special_function */
240 "R_PPC64_ADDR32", /* name */
241 FALSE, /* partial_inplace */
243 0xffffffff, /* dst_mask */
244 FALSE), /* pcrel_offset */
246 /* An absolute 26 bit branch; the lower two bits must be zero.
247 FIXME: we don't check that, we just clear them. */
248 HOWTO (R_PPC64_ADDR24, /* type */
250 2, /* size (0 = byte, 1 = short, 2 = long) */
252 FALSE, /* pc_relative */
254 complain_overflow_bitfield, /* complain_on_overflow */
255 bfd_elf_generic_reloc, /* special_function */
256 "R_PPC64_ADDR24", /* name */
257 FALSE, /* partial_inplace */
259 0x03fffffc, /* dst_mask */
260 FALSE), /* pcrel_offset */
262 /* A standard 16 bit relocation. */
263 HOWTO (R_PPC64_ADDR16, /* type */
265 1, /* size (0 = byte, 1 = short, 2 = long) */
267 FALSE, /* pc_relative */
269 complain_overflow_bitfield, /* complain_on_overflow */
270 bfd_elf_generic_reloc, /* special_function */
271 "R_PPC64_ADDR16", /* name */
272 FALSE, /* partial_inplace */
274 0xffff, /* dst_mask */
275 FALSE), /* pcrel_offset */
277 /* A 16 bit relocation without overflow. */
278 HOWTO (R_PPC64_ADDR16_LO, /* type */
280 1, /* size (0 = byte, 1 = short, 2 = long) */
282 FALSE, /* pc_relative */
284 complain_overflow_dont,/* complain_on_overflow */
285 bfd_elf_generic_reloc, /* special_function */
286 "R_PPC64_ADDR16_LO", /* name */
287 FALSE, /* partial_inplace */
289 0xffff, /* dst_mask */
290 FALSE), /* pcrel_offset */
292 /* Bits 16-31 of an address. */
293 HOWTO (R_PPC64_ADDR16_HI, /* type */
295 1, /* size (0 = byte, 1 = short, 2 = long) */
297 FALSE, /* pc_relative */
299 complain_overflow_dont, /* complain_on_overflow */
300 bfd_elf_generic_reloc, /* special_function */
301 "R_PPC64_ADDR16_HI", /* name */
302 FALSE, /* partial_inplace */
304 0xffff, /* dst_mask */
305 FALSE), /* pcrel_offset */
307 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
308 bits, treated as a signed number, is negative. */
309 HOWTO (R_PPC64_ADDR16_HA, /* type */
311 1, /* size (0 = byte, 1 = short, 2 = long) */
313 FALSE, /* pc_relative */
315 complain_overflow_dont, /* complain_on_overflow */
316 ppc64_elf_ha_reloc, /* special_function */
317 "R_PPC64_ADDR16_HA", /* name */
318 FALSE, /* partial_inplace */
320 0xffff, /* dst_mask */
321 FALSE), /* pcrel_offset */
323 /* An absolute 16 bit branch; the lower two bits must be zero.
324 FIXME: we don't check that, we just clear them. */
325 HOWTO (R_PPC64_ADDR14, /* type */
327 2, /* size (0 = byte, 1 = short, 2 = long) */
329 FALSE, /* pc_relative */
331 complain_overflow_bitfield, /* complain_on_overflow */
332 ppc64_elf_branch_reloc, /* special_function */
333 "R_PPC64_ADDR14", /* name */
334 FALSE, /* partial_inplace */
336 0x0000fffc, /* dst_mask */
337 FALSE), /* pcrel_offset */
339 /* An absolute 16 bit branch, for which bit 10 should be set to
340 indicate that the branch is expected to be taken. The lower two
341 bits must be zero. */
342 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
344 2, /* size (0 = byte, 1 = short, 2 = long) */
346 FALSE, /* pc_relative */
348 complain_overflow_bitfield, /* complain_on_overflow */
349 ppc64_elf_brtaken_reloc, /* special_function */
350 "R_PPC64_ADDR14_BRTAKEN",/* name */
351 FALSE, /* partial_inplace */
353 0x0000fffc, /* dst_mask */
354 FALSE), /* pcrel_offset */
356 /* An absolute 16 bit branch, for which bit 10 should be set to
357 indicate that the branch is not expected to be taken. The lower
358 two bits must be zero. */
359 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
361 2, /* size (0 = byte, 1 = short, 2 = long) */
363 FALSE, /* pc_relative */
365 complain_overflow_bitfield, /* complain_on_overflow */
366 ppc64_elf_brtaken_reloc, /* special_function */
367 "R_PPC64_ADDR14_BRNTAKEN",/* name */
368 FALSE, /* partial_inplace */
370 0x0000fffc, /* dst_mask */
371 FALSE), /* pcrel_offset */
373 /* A relative 26 bit branch; the lower two bits must be zero. */
374 HOWTO (R_PPC64_REL24, /* type */
376 2, /* size (0 = byte, 1 = short, 2 = long) */
378 TRUE, /* pc_relative */
380 complain_overflow_signed, /* complain_on_overflow */
381 ppc64_elf_branch_reloc, /* special_function */
382 "R_PPC64_REL24", /* name */
383 FALSE, /* partial_inplace */
385 0x03fffffc, /* dst_mask */
386 TRUE), /* pcrel_offset */
388 /* A relative 16 bit branch; the lower two bits must be zero. */
389 HOWTO (R_PPC64_REL14, /* type */
391 2, /* size (0 = byte, 1 = short, 2 = long) */
393 TRUE, /* pc_relative */
395 complain_overflow_signed, /* complain_on_overflow */
396 ppc64_elf_branch_reloc, /* special_function */
397 "R_PPC64_REL14", /* name */
398 FALSE, /* partial_inplace */
400 0x0000fffc, /* dst_mask */
401 TRUE), /* pcrel_offset */
403 /* A relative 16 bit branch. Bit 10 should be set to indicate that
404 the branch is expected to be taken. The lower two bits must be
406 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
408 2, /* size (0 = byte, 1 = short, 2 = long) */
410 TRUE, /* pc_relative */
412 complain_overflow_signed, /* complain_on_overflow */
413 ppc64_elf_brtaken_reloc, /* special_function */
414 "R_PPC64_REL14_BRTAKEN", /* name */
415 FALSE, /* partial_inplace */
417 0x0000fffc, /* dst_mask */
418 TRUE), /* pcrel_offset */
420 /* A relative 16 bit branch. Bit 10 should be set to indicate that
421 the branch is not expected to be taken. The lower two bits must
423 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
425 2, /* size (0 = byte, 1 = short, 2 = long) */
427 TRUE, /* pc_relative */
429 complain_overflow_signed, /* complain_on_overflow */
430 ppc64_elf_brtaken_reloc, /* special_function */
431 "R_PPC64_REL14_BRNTAKEN",/* name */
432 FALSE, /* partial_inplace */
434 0x0000fffc, /* dst_mask */
435 TRUE), /* pcrel_offset */
437 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
439 HOWTO (R_PPC64_GOT16, /* type */
441 1, /* size (0 = byte, 1 = short, 2 = long) */
443 FALSE, /* pc_relative */
445 complain_overflow_signed, /* complain_on_overflow */
446 ppc64_elf_unhandled_reloc, /* special_function */
447 "R_PPC64_GOT16", /* name */
448 FALSE, /* partial_inplace */
450 0xffff, /* dst_mask */
451 FALSE), /* pcrel_offset */
453 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
455 HOWTO (R_PPC64_GOT16_LO, /* type */
457 1, /* size (0 = byte, 1 = short, 2 = long) */
459 FALSE, /* pc_relative */
461 complain_overflow_dont, /* complain_on_overflow */
462 ppc64_elf_unhandled_reloc, /* special_function */
463 "R_PPC64_GOT16_LO", /* name */
464 FALSE, /* partial_inplace */
466 0xffff, /* dst_mask */
467 FALSE), /* pcrel_offset */
469 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
471 HOWTO (R_PPC64_GOT16_HI, /* type */
473 1, /* size (0 = byte, 1 = short, 2 = long) */
475 FALSE, /* pc_relative */
477 complain_overflow_dont,/* complain_on_overflow */
478 ppc64_elf_unhandled_reloc, /* special_function */
479 "R_PPC64_GOT16_HI", /* name */
480 FALSE, /* partial_inplace */
482 0xffff, /* dst_mask */
483 FALSE), /* pcrel_offset */
485 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
487 HOWTO (R_PPC64_GOT16_HA, /* type */
489 1, /* size (0 = byte, 1 = short, 2 = long) */
491 FALSE, /* pc_relative */
493 complain_overflow_dont,/* complain_on_overflow */
494 ppc64_elf_unhandled_reloc, /* special_function */
495 "R_PPC64_GOT16_HA", /* name */
496 FALSE, /* partial_inplace */
498 0xffff, /* dst_mask */
499 FALSE), /* pcrel_offset */
501 /* This is used only by the dynamic linker. The symbol should exist
502 both in the object being run and in some shared library. The
503 dynamic linker copies the data addressed by the symbol from the
504 shared library into the object, because the object being
505 run has to have the data at some particular address. */
506 HOWTO (R_PPC64_COPY, /* type */
508 0, /* this one is variable size */
510 FALSE, /* pc_relative */
512 complain_overflow_dont, /* complain_on_overflow */
513 ppc64_elf_unhandled_reloc, /* special_function */
514 "R_PPC64_COPY", /* name */
515 FALSE, /* partial_inplace */
518 FALSE), /* pcrel_offset */
520 /* Like R_PPC64_ADDR64, but used when setting global offset table
522 HOWTO (R_PPC64_GLOB_DAT, /* type */
524 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
526 FALSE, /* pc_relative */
528 complain_overflow_dont, /* complain_on_overflow */
529 ppc64_elf_unhandled_reloc, /* special_function */
530 "R_PPC64_GLOB_DAT", /* name */
531 FALSE, /* partial_inplace */
533 ONES (64), /* dst_mask */
534 FALSE), /* pcrel_offset */
536 /* Created by the link editor. Marks a procedure linkage table
537 entry for a symbol. */
538 HOWTO (R_PPC64_JMP_SLOT, /* type */
540 0, /* size (0 = byte, 1 = short, 2 = long) */
542 FALSE, /* pc_relative */
544 complain_overflow_dont, /* complain_on_overflow */
545 ppc64_elf_unhandled_reloc, /* special_function */
546 "R_PPC64_JMP_SLOT", /* name */
547 FALSE, /* partial_inplace */
550 FALSE), /* pcrel_offset */
552 /* Used only by the dynamic linker. When the object is run, this
553 doubleword64 is set to the load address of the object, plus the
555 HOWTO (R_PPC64_RELATIVE, /* type */
557 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
559 FALSE, /* pc_relative */
561 complain_overflow_dont, /* complain_on_overflow */
562 bfd_elf_generic_reloc, /* special_function */
563 "R_PPC64_RELATIVE", /* name */
564 FALSE, /* partial_inplace */
566 ONES (64), /* dst_mask */
567 FALSE), /* pcrel_offset */
569 /* Like R_PPC64_ADDR32, but may be unaligned. */
570 HOWTO (R_PPC64_UADDR32, /* type */
572 2, /* size (0 = byte, 1 = short, 2 = long) */
574 FALSE, /* pc_relative */
576 complain_overflow_bitfield, /* complain_on_overflow */
577 bfd_elf_generic_reloc, /* special_function */
578 "R_PPC64_UADDR32", /* name */
579 FALSE, /* partial_inplace */
581 0xffffffff, /* dst_mask */
582 FALSE), /* pcrel_offset */
584 /* Like R_PPC64_ADDR16, but may be unaligned. */
585 HOWTO (R_PPC64_UADDR16, /* type */
587 1, /* size (0 = byte, 1 = short, 2 = long) */
589 FALSE, /* pc_relative */
591 complain_overflow_bitfield, /* complain_on_overflow */
592 bfd_elf_generic_reloc, /* special_function */
593 "R_PPC64_UADDR16", /* name */
594 FALSE, /* partial_inplace */
596 0xffff, /* dst_mask */
597 FALSE), /* pcrel_offset */
599 /* 32-bit PC relative. */
600 HOWTO (R_PPC64_REL32, /* type */
602 2, /* size (0 = byte, 1 = short, 2 = long) */
604 TRUE, /* pc_relative */
606 /* FIXME: Verify. Was complain_overflow_bitfield. */
607 complain_overflow_signed, /* complain_on_overflow */
608 bfd_elf_generic_reloc, /* special_function */
609 "R_PPC64_REL32", /* name */
610 FALSE, /* partial_inplace */
612 0xffffffff, /* dst_mask */
613 TRUE), /* pcrel_offset */
615 /* 32-bit relocation to the symbol's procedure linkage table. */
616 HOWTO (R_PPC64_PLT32, /* type */
618 2, /* size (0 = byte, 1 = short, 2 = long) */
620 FALSE, /* pc_relative */
622 complain_overflow_bitfield, /* complain_on_overflow */
623 ppc64_elf_unhandled_reloc, /* special_function */
624 "R_PPC64_PLT32", /* name */
625 FALSE, /* partial_inplace */
627 0xffffffff, /* dst_mask */
628 FALSE), /* pcrel_offset */
630 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
631 FIXME: R_PPC64_PLTREL32 not supported. */
632 HOWTO (R_PPC64_PLTREL32, /* type */
634 2, /* size (0 = byte, 1 = short, 2 = long) */
636 TRUE, /* pc_relative */
638 complain_overflow_signed, /* complain_on_overflow */
639 bfd_elf_generic_reloc, /* special_function */
640 "R_PPC64_PLTREL32", /* name */
641 FALSE, /* partial_inplace */
643 0xffffffff, /* dst_mask */
644 TRUE), /* pcrel_offset */
646 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
648 HOWTO (R_PPC64_PLT16_LO, /* type */
650 1, /* size (0 = byte, 1 = short, 2 = long) */
652 FALSE, /* pc_relative */
654 complain_overflow_dont, /* complain_on_overflow */
655 ppc64_elf_unhandled_reloc, /* special_function */
656 "R_PPC64_PLT16_LO", /* name */
657 FALSE, /* partial_inplace */
659 0xffff, /* dst_mask */
660 FALSE), /* pcrel_offset */
662 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
664 HOWTO (R_PPC64_PLT16_HI, /* type */
666 1, /* size (0 = byte, 1 = short, 2 = long) */
668 FALSE, /* pc_relative */
670 complain_overflow_dont, /* complain_on_overflow */
671 ppc64_elf_unhandled_reloc, /* special_function */
672 "R_PPC64_PLT16_HI", /* name */
673 FALSE, /* partial_inplace */
675 0xffff, /* dst_mask */
676 FALSE), /* pcrel_offset */
678 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
680 HOWTO (R_PPC64_PLT16_HA, /* type */
682 1, /* size (0 = byte, 1 = short, 2 = long) */
684 FALSE, /* pc_relative */
686 complain_overflow_dont, /* complain_on_overflow */
687 ppc64_elf_unhandled_reloc, /* special_function */
688 "R_PPC64_PLT16_HA", /* name */
689 FALSE, /* partial_inplace */
691 0xffff, /* dst_mask */
692 FALSE), /* pcrel_offset */
694 /* 16-bit section relative relocation. */
695 HOWTO (R_PPC64_SECTOFF, /* type */
697 1, /* size (0 = byte, 1 = short, 2 = long) */
699 FALSE, /* pc_relative */
701 complain_overflow_bitfield, /* complain_on_overflow */
702 ppc64_elf_sectoff_reloc, /* special_function */
703 "R_PPC64_SECTOFF", /* name */
704 FALSE, /* partial_inplace */
706 0xffff, /* dst_mask */
707 FALSE), /* pcrel_offset */
709 /* Like R_PPC64_SECTOFF, but no overflow warning. */
710 HOWTO (R_PPC64_SECTOFF_LO, /* type */
712 1, /* size (0 = byte, 1 = short, 2 = long) */
714 FALSE, /* pc_relative */
716 complain_overflow_dont, /* complain_on_overflow */
717 ppc64_elf_sectoff_reloc, /* special_function */
718 "R_PPC64_SECTOFF_LO", /* name */
719 FALSE, /* partial_inplace */
721 0xffff, /* dst_mask */
722 FALSE), /* pcrel_offset */
724 /* 16-bit upper half section relative relocation. */
725 HOWTO (R_PPC64_SECTOFF_HI, /* type */
727 1, /* size (0 = byte, 1 = short, 2 = long) */
729 FALSE, /* pc_relative */
731 complain_overflow_dont, /* complain_on_overflow */
732 ppc64_elf_sectoff_reloc, /* special_function */
733 "R_PPC64_SECTOFF_HI", /* name */
734 FALSE, /* partial_inplace */
736 0xffff, /* dst_mask */
737 FALSE), /* pcrel_offset */
739 /* 16-bit upper half adjusted section relative relocation. */
740 HOWTO (R_PPC64_SECTOFF_HA, /* type */
742 1, /* size (0 = byte, 1 = short, 2 = long) */
744 FALSE, /* pc_relative */
746 complain_overflow_dont, /* complain_on_overflow */
747 ppc64_elf_sectoff_ha_reloc, /* special_function */
748 "R_PPC64_SECTOFF_HA", /* name */
749 FALSE, /* partial_inplace */
751 0xffff, /* dst_mask */
752 FALSE), /* pcrel_offset */
754 /* Like R_PPC64_REL24 without touching the two least significant bits. */
755 HOWTO (R_PPC64_REL30, /* type */
757 2, /* size (0 = byte, 1 = short, 2 = long) */
759 TRUE, /* pc_relative */
761 complain_overflow_dont, /* complain_on_overflow */
762 bfd_elf_generic_reloc, /* special_function */
763 "R_PPC64_REL30", /* name */
764 FALSE, /* partial_inplace */
766 0xfffffffc, /* dst_mask */
767 TRUE), /* pcrel_offset */
769 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
771 /* A standard 64-bit relocation. */
772 HOWTO (R_PPC64_ADDR64, /* type */
774 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
776 FALSE, /* pc_relative */
778 complain_overflow_dont, /* complain_on_overflow */
779 bfd_elf_generic_reloc, /* special_function */
780 "R_PPC64_ADDR64", /* name */
781 FALSE, /* partial_inplace */
783 ONES (64), /* dst_mask */
784 FALSE), /* pcrel_offset */
786 /* The bits 32-47 of an address. */
787 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
789 1, /* size (0 = byte, 1 = short, 2 = long) */
791 FALSE, /* pc_relative */
793 complain_overflow_dont, /* complain_on_overflow */
794 bfd_elf_generic_reloc, /* special_function */
795 "R_PPC64_ADDR16_HIGHER", /* name */
796 FALSE, /* partial_inplace */
798 0xffff, /* dst_mask */
799 FALSE), /* pcrel_offset */
801 /* The bits 32-47 of an address, plus 1 if the contents of the low
802 16 bits, treated as a signed number, is negative. */
803 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
805 1, /* size (0 = byte, 1 = short, 2 = long) */
807 FALSE, /* pc_relative */
809 complain_overflow_dont, /* complain_on_overflow */
810 ppc64_elf_ha_reloc, /* special_function */
811 "R_PPC64_ADDR16_HIGHERA", /* name */
812 FALSE, /* partial_inplace */
814 0xffff, /* dst_mask */
815 FALSE), /* pcrel_offset */
817 /* The bits 48-63 of an address. */
818 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
820 1, /* size (0 = byte, 1 = short, 2 = long) */
822 FALSE, /* pc_relative */
824 complain_overflow_dont, /* complain_on_overflow */
825 bfd_elf_generic_reloc, /* special_function */
826 "R_PPC64_ADDR16_HIGHEST", /* name */
827 FALSE, /* partial_inplace */
829 0xffff, /* dst_mask */
830 FALSE), /* pcrel_offset */
832 /* The bits 48-63 of an address, plus 1 if the contents of the low
833 16 bits, treated as a signed number, is negative. */
834 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
836 1, /* size (0 = byte, 1 = short, 2 = long) */
838 FALSE, /* pc_relative */
840 complain_overflow_dont, /* complain_on_overflow */
841 ppc64_elf_ha_reloc, /* special_function */
842 "R_PPC64_ADDR16_HIGHESTA", /* name */
843 FALSE, /* partial_inplace */
845 0xffff, /* dst_mask */
846 FALSE), /* pcrel_offset */
848 /* Like ADDR64, but may be unaligned. */
849 HOWTO (R_PPC64_UADDR64, /* type */
851 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
853 FALSE, /* pc_relative */
855 complain_overflow_dont, /* complain_on_overflow */
856 bfd_elf_generic_reloc, /* special_function */
857 "R_PPC64_UADDR64", /* name */
858 FALSE, /* partial_inplace */
860 ONES (64), /* dst_mask */
861 FALSE), /* pcrel_offset */
863 /* 64-bit relative relocation. */
864 HOWTO (R_PPC64_REL64, /* type */
866 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
868 TRUE, /* pc_relative */
870 complain_overflow_dont, /* complain_on_overflow */
871 bfd_elf_generic_reloc, /* special_function */
872 "R_PPC64_REL64", /* name */
873 FALSE, /* partial_inplace */
875 ONES (64), /* dst_mask */
876 TRUE), /* pcrel_offset */
878 /* 64-bit relocation to the symbol's procedure linkage table. */
879 HOWTO (R_PPC64_PLT64, /* type */
881 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
883 FALSE, /* pc_relative */
885 complain_overflow_dont, /* complain_on_overflow */
886 ppc64_elf_unhandled_reloc, /* special_function */
887 "R_PPC64_PLT64", /* name */
888 FALSE, /* partial_inplace */
890 ONES (64), /* dst_mask */
891 FALSE), /* pcrel_offset */
893 /* 64-bit PC relative relocation to the symbol's procedure linkage
895 /* FIXME: R_PPC64_PLTREL64 not supported. */
896 HOWTO (R_PPC64_PLTREL64, /* type */
898 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
900 TRUE, /* pc_relative */
902 complain_overflow_dont, /* complain_on_overflow */
903 ppc64_elf_unhandled_reloc, /* special_function */
904 "R_PPC64_PLTREL64", /* name */
905 FALSE, /* partial_inplace */
907 ONES (64), /* dst_mask */
908 TRUE), /* pcrel_offset */
910 /* 16 bit TOC-relative relocation. */
912 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
913 HOWTO (R_PPC64_TOC16, /* type */
915 1, /* size (0 = byte, 1 = short, 2 = long) */
917 FALSE, /* pc_relative */
919 complain_overflow_signed, /* complain_on_overflow */
920 ppc64_elf_toc_reloc, /* special_function */
921 "R_PPC64_TOC16", /* name */
922 FALSE, /* partial_inplace */
924 0xffff, /* dst_mask */
925 FALSE), /* pcrel_offset */
927 /* 16 bit TOC-relative relocation without overflow. */
929 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
930 HOWTO (R_PPC64_TOC16_LO, /* type */
932 1, /* size (0 = byte, 1 = short, 2 = long) */
934 FALSE, /* pc_relative */
936 complain_overflow_dont, /* complain_on_overflow */
937 ppc64_elf_toc_reloc, /* special_function */
938 "R_PPC64_TOC16_LO", /* name */
939 FALSE, /* partial_inplace */
941 0xffff, /* dst_mask */
942 FALSE), /* pcrel_offset */
944 /* 16 bit TOC-relative relocation, high 16 bits. */
946 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
947 HOWTO (R_PPC64_TOC16_HI, /* type */
949 1, /* size (0 = byte, 1 = short, 2 = long) */
951 FALSE, /* pc_relative */
953 complain_overflow_dont, /* complain_on_overflow */
954 ppc64_elf_toc_reloc, /* special_function */
955 "R_PPC64_TOC16_HI", /* name */
956 FALSE, /* partial_inplace */
958 0xffff, /* dst_mask */
959 FALSE), /* pcrel_offset */
961 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
962 contents of the low 16 bits, treated as a signed number, is
965 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
966 HOWTO (R_PPC64_TOC16_HA, /* type */
968 1, /* size (0 = byte, 1 = short, 2 = long) */
970 FALSE, /* pc_relative */
972 complain_overflow_dont, /* complain_on_overflow */
973 ppc64_elf_toc_ha_reloc, /* special_function */
974 "R_PPC64_TOC16_HA", /* name */
975 FALSE, /* partial_inplace */
977 0xffff, /* dst_mask */
978 FALSE), /* pcrel_offset */
980 /* 64-bit relocation; insert value of TOC base (.TOC.). */
982 /* R_PPC64_TOC 51 doubleword64 .TOC. */
983 HOWTO (R_PPC64_TOC, /* type */
985 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
987 FALSE, /* pc_relative */
989 complain_overflow_bitfield, /* complain_on_overflow */
990 ppc64_elf_toc64_reloc, /* special_function */
991 "R_PPC64_TOC", /* name */
992 FALSE, /* partial_inplace */
994 ONES (64), /* dst_mask */
995 FALSE), /* pcrel_offset */
997 /* Like R_PPC64_GOT16, but also informs the link editor that the
998 value to relocate may (!) refer to a PLT entry which the link
999 editor (a) may replace with the symbol value. If the link editor
1000 is unable to fully resolve the symbol, it may (b) create a PLT
1001 entry and store the address to the new PLT entry in the GOT.
1002 This permits lazy resolution of function symbols at run time.
1003 The link editor may also skip all of this and just (c) emit a
1004 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
1005 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
1006 HOWTO (R_PPC64_PLTGOT16, /* type */
1008 1, /* size (0 = byte, 1 = short, 2 = long) */
1010 FALSE, /* pc_relative */
1012 complain_overflow_signed, /* complain_on_overflow */
1013 ppc64_elf_unhandled_reloc, /* special_function */
1014 "R_PPC64_PLTGOT16", /* name */
1015 FALSE, /* partial_inplace */
1017 0xffff, /* dst_mask */
1018 FALSE), /* pcrel_offset */
1020 /* Like R_PPC64_PLTGOT16, but without overflow. */
1021 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1022 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
1024 1, /* size (0 = byte, 1 = short, 2 = long) */
1026 FALSE, /* pc_relative */
1028 complain_overflow_dont, /* complain_on_overflow */
1029 ppc64_elf_unhandled_reloc, /* special_function */
1030 "R_PPC64_PLTGOT16_LO", /* name */
1031 FALSE, /* partial_inplace */
1033 0xffff, /* dst_mask */
1034 FALSE), /* pcrel_offset */
1036 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1037 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1038 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1039 16, /* rightshift */
1040 1, /* size (0 = byte, 1 = short, 2 = long) */
1042 FALSE, /* pc_relative */
1044 complain_overflow_dont, /* complain_on_overflow */
1045 ppc64_elf_unhandled_reloc, /* special_function */
1046 "R_PPC64_PLTGOT16_HI", /* name */
1047 FALSE, /* partial_inplace */
1049 0xffff, /* dst_mask */
1050 FALSE), /* pcrel_offset */
1052 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1053 1 if the contents of the low 16 bits, treated as a signed number,
1055 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1056 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1057 16, /* rightshift */
1058 1, /* size (0 = byte, 1 = short, 2 = long) */
1060 FALSE, /* pc_relative */
1062 complain_overflow_dont,/* complain_on_overflow */
1063 ppc64_elf_unhandled_reloc, /* special_function */
1064 "R_PPC64_PLTGOT16_HA", /* name */
1065 FALSE, /* partial_inplace */
1067 0xffff, /* dst_mask */
1068 FALSE), /* pcrel_offset */
1070 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1071 HOWTO (R_PPC64_ADDR16_DS, /* type */
1073 1, /* size (0 = byte, 1 = short, 2 = long) */
1075 FALSE, /* pc_relative */
1077 complain_overflow_bitfield, /* complain_on_overflow */
1078 bfd_elf_generic_reloc, /* special_function */
1079 "R_PPC64_ADDR16_DS", /* name */
1080 FALSE, /* partial_inplace */
1082 0xfffc, /* dst_mask */
1083 FALSE), /* pcrel_offset */
1085 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1086 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1088 1, /* size (0 = byte, 1 = short, 2 = long) */
1090 FALSE, /* pc_relative */
1092 complain_overflow_dont,/* complain_on_overflow */
1093 bfd_elf_generic_reloc, /* special_function */
1094 "R_PPC64_ADDR16_LO_DS",/* name */
1095 FALSE, /* partial_inplace */
1097 0xfffc, /* dst_mask */
1098 FALSE), /* pcrel_offset */
1100 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1101 HOWTO (R_PPC64_GOT16_DS, /* type */
1103 1, /* size (0 = byte, 1 = short, 2 = long) */
1105 FALSE, /* pc_relative */
1107 complain_overflow_signed, /* complain_on_overflow */
1108 ppc64_elf_unhandled_reloc, /* special_function */
1109 "R_PPC64_GOT16_DS", /* name */
1110 FALSE, /* partial_inplace */
1112 0xfffc, /* dst_mask */
1113 FALSE), /* pcrel_offset */
1115 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1116 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1118 1, /* size (0 = byte, 1 = short, 2 = long) */
1120 FALSE, /* pc_relative */
1122 complain_overflow_dont, /* complain_on_overflow */
1123 ppc64_elf_unhandled_reloc, /* special_function */
1124 "R_PPC64_GOT16_LO_DS", /* name */
1125 FALSE, /* partial_inplace */
1127 0xfffc, /* dst_mask */
1128 FALSE), /* pcrel_offset */
1130 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1131 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1133 1, /* size (0 = byte, 1 = short, 2 = long) */
1135 FALSE, /* pc_relative */
1137 complain_overflow_dont, /* complain_on_overflow */
1138 ppc64_elf_unhandled_reloc, /* special_function */
1139 "R_PPC64_PLT16_LO_DS", /* name */
1140 FALSE, /* partial_inplace */
1142 0xfffc, /* dst_mask */
1143 FALSE), /* pcrel_offset */
1145 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1146 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1148 1, /* size (0 = byte, 1 = short, 2 = long) */
1150 FALSE, /* pc_relative */
1152 complain_overflow_bitfield, /* complain_on_overflow */
1153 ppc64_elf_sectoff_reloc, /* special_function */
1154 "R_PPC64_SECTOFF_DS", /* name */
1155 FALSE, /* partial_inplace */
1157 0xfffc, /* dst_mask */
1158 FALSE), /* pcrel_offset */
1160 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1161 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1163 1, /* size (0 = byte, 1 = short, 2 = long) */
1165 FALSE, /* pc_relative */
1167 complain_overflow_dont, /* complain_on_overflow */
1168 ppc64_elf_sectoff_reloc, /* special_function */
1169 "R_PPC64_SECTOFF_LO_DS",/* name */
1170 FALSE, /* partial_inplace */
1172 0xfffc, /* dst_mask */
1173 FALSE), /* pcrel_offset */
1175 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1176 HOWTO (R_PPC64_TOC16_DS, /* type */
1178 1, /* size (0 = byte, 1 = short, 2 = long) */
1180 FALSE, /* pc_relative */
1182 complain_overflow_signed, /* complain_on_overflow */
1183 ppc64_elf_toc_reloc, /* special_function */
1184 "R_PPC64_TOC16_DS", /* name */
1185 FALSE, /* partial_inplace */
1187 0xfffc, /* dst_mask */
1188 FALSE), /* pcrel_offset */
1190 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1191 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1193 1, /* size (0 = byte, 1 = short, 2 = long) */
1195 FALSE, /* pc_relative */
1197 complain_overflow_dont, /* complain_on_overflow */
1198 ppc64_elf_toc_reloc, /* special_function */
1199 "R_PPC64_TOC16_LO_DS", /* name */
1200 FALSE, /* partial_inplace */
1202 0xfffc, /* dst_mask */
1203 FALSE), /* pcrel_offset */
1205 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1206 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1207 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1209 1, /* size (0 = byte, 1 = short, 2 = long) */
1211 FALSE, /* pc_relative */
1213 complain_overflow_signed, /* complain_on_overflow */
1214 ppc64_elf_unhandled_reloc, /* special_function */
1215 "R_PPC64_PLTGOT16_DS", /* name */
1216 FALSE, /* partial_inplace */
1218 0xfffc, /* dst_mask */
1219 FALSE), /* pcrel_offset */
1221 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1222 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1223 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1225 1, /* size (0 = byte, 1 = short, 2 = long) */
1227 FALSE, /* pc_relative */
1229 complain_overflow_dont, /* complain_on_overflow */
1230 ppc64_elf_unhandled_reloc, /* special_function */
1231 "R_PPC64_PLTGOT16_LO_DS",/* name */
1232 FALSE, /* partial_inplace */
1234 0xfffc, /* dst_mask */
1235 FALSE), /* pcrel_offset */
1237 /* Marker reloc for TLS. */
1240 2, /* size (0 = byte, 1 = short, 2 = long) */
1242 FALSE, /* pc_relative */
1244 complain_overflow_dont, /* complain_on_overflow */
1245 bfd_elf_generic_reloc, /* special_function */
1246 "R_PPC64_TLS", /* name */
1247 FALSE, /* partial_inplace */
1250 FALSE), /* pcrel_offset */
1252 /* Computes the load module index of the load module that contains the
1253 definition of its TLS sym. */
1254 HOWTO (R_PPC64_DTPMOD64,
1256 4, /* size (0 = byte, 1 = short, 2 = long) */
1258 FALSE, /* pc_relative */
1260 complain_overflow_dont, /* complain_on_overflow */
1261 ppc64_elf_unhandled_reloc, /* special_function */
1262 "R_PPC64_DTPMOD64", /* name */
1263 FALSE, /* partial_inplace */
1265 ONES (64), /* dst_mask */
1266 FALSE), /* pcrel_offset */
1268 /* Computes a dtv-relative displacement, the difference between the value
1269 of sym+add and the base address of the thread-local storage block that
1270 contains the definition of sym, minus 0x8000. */
1271 HOWTO (R_PPC64_DTPREL64,
1273 4, /* size (0 = byte, 1 = short, 2 = long) */
1275 FALSE, /* pc_relative */
1277 complain_overflow_dont, /* complain_on_overflow */
1278 ppc64_elf_unhandled_reloc, /* special_function */
1279 "R_PPC64_DTPREL64", /* name */
1280 FALSE, /* partial_inplace */
1282 ONES (64), /* dst_mask */
1283 FALSE), /* pcrel_offset */
1285 /* A 16 bit dtprel reloc. */
1286 HOWTO (R_PPC64_DTPREL16,
1288 1, /* size (0 = byte, 1 = short, 2 = long) */
1290 FALSE, /* pc_relative */
1292 complain_overflow_signed, /* complain_on_overflow */
1293 ppc64_elf_unhandled_reloc, /* special_function */
1294 "R_PPC64_DTPREL16", /* name */
1295 FALSE, /* partial_inplace */
1297 0xffff, /* dst_mask */
1298 FALSE), /* pcrel_offset */
1300 /* Like DTPREL16, but no overflow. */
1301 HOWTO (R_PPC64_DTPREL16_LO,
1303 1, /* size (0 = byte, 1 = short, 2 = long) */
1305 FALSE, /* pc_relative */
1307 complain_overflow_dont, /* complain_on_overflow */
1308 ppc64_elf_unhandled_reloc, /* special_function */
1309 "R_PPC64_DTPREL16_LO", /* name */
1310 FALSE, /* partial_inplace */
1312 0xffff, /* dst_mask */
1313 FALSE), /* pcrel_offset */
1315 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1316 HOWTO (R_PPC64_DTPREL16_HI,
1317 16, /* rightshift */
1318 1, /* size (0 = byte, 1 = short, 2 = long) */
1320 FALSE, /* pc_relative */
1322 complain_overflow_dont, /* complain_on_overflow */
1323 ppc64_elf_unhandled_reloc, /* special_function */
1324 "R_PPC64_DTPREL16_HI", /* name */
1325 FALSE, /* partial_inplace */
1327 0xffff, /* dst_mask */
1328 FALSE), /* pcrel_offset */
1330 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1331 HOWTO (R_PPC64_DTPREL16_HA,
1332 16, /* rightshift */
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1335 FALSE, /* pc_relative */
1337 complain_overflow_dont, /* complain_on_overflow */
1338 ppc64_elf_unhandled_reloc, /* special_function */
1339 "R_PPC64_DTPREL16_HA", /* name */
1340 FALSE, /* partial_inplace */
1342 0xffff, /* dst_mask */
1343 FALSE), /* pcrel_offset */
1345 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1346 HOWTO (R_PPC64_DTPREL16_HIGHER,
1347 32, /* rightshift */
1348 1, /* size (0 = byte, 1 = short, 2 = long) */
1350 FALSE, /* pc_relative */
1352 complain_overflow_dont, /* complain_on_overflow */
1353 ppc64_elf_unhandled_reloc, /* special_function */
1354 "R_PPC64_DTPREL16_HIGHER", /* name */
1355 FALSE, /* partial_inplace */
1357 0xffff, /* dst_mask */
1358 FALSE), /* pcrel_offset */
1360 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1361 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1362 32, /* rightshift */
1363 1, /* size (0 = byte, 1 = short, 2 = long) */
1365 FALSE, /* pc_relative */
1367 complain_overflow_dont, /* complain_on_overflow */
1368 ppc64_elf_unhandled_reloc, /* special_function */
1369 "R_PPC64_DTPREL16_HIGHERA", /* name */
1370 FALSE, /* partial_inplace */
1372 0xffff, /* dst_mask */
1373 FALSE), /* pcrel_offset */
1375 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1376 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1377 48, /* rightshift */
1378 1, /* size (0 = byte, 1 = short, 2 = long) */
1380 FALSE, /* pc_relative */
1382 complain_overflow_dont, /* complain_on_overflow */
1383 ppc64_elf_unhandled_reloc, /* special_function */
1384 "R_PPC64_DTPREL16_HIGHEST", /* name */
1385 FALSE, /* partial_inplace */
1387 0xffff, /* dst_mask */
1388 FALSE), /* pcrel_offset */
1390 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1391 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1392 48, /* rightshift */
1393 1, /* size (0 = byte, 1 = short, 2 = long) */
1395 FALSE, /* pc_relative */
1397 complain_overflow_dont, /* complain_on_overflow */
1398 ppc64_elf_unhandled_reloc, /* special_function */
1399 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1400 FALSE, /* partial_inplace */
1402 0xffff, /* dst_mask */
1403 FALSE), /* pcrel_offset */
1405 /* Like DTPREL16, but for insns with a DS field. */
1406 HOWTO (R_PPC64_DTPREL16_DS,
1408 1, /* size (0 = byte, 1 = short, 2 = long) */
1410 FALSE, /* pc_relative */
1412 complain_overflow_signed, /* complain_on_overflow */
1413 ppc64_elf_unhandled_reloc, /* special_function */
1414 "R_PPC64_DTPREL16_DS", /* name */
1415 FALSE, /* partial_inplace */
1417 0xfffc, /* dst_mask */
1418 FALSE), /* pcrel_offset */
1420 /* Like DTPREL16_DS, but no overflow. */
1421 HOWTO (R_PPC64_DTPREL16_LO_DS,
1423 1, /* size (0 = byte, 1 = short, 2 = long) */
1425 FALSE, /* pc_relative */
1427 complain_overflow_dont, /* complain_on_overflow */
1428 ppc64_elf_unhandled_reloc, /* special_function */
1429 "R_PPC64_DTPREL16_LO_DS", /* name */
1430 FALSE, /* partial_inplace */
1432 0xfffc, /* dst_mask */
1433 FALSE), /* pcrel_offset */
1435 /* Computes a tp-relative displacement, the difference between the value of
1436 sym+add and the value of the thread pointer (r13). */
1437 HOWTO (R_PPC64_TPREL64,
1439 4, /* size (0 = byte, 1 = short, 2 = long) */
1441 FALSE, /* pc_relative */
1443 complain_overflow_dont, /* complain_on_overflow */
1444 ppc64_elf_unhandled_reloc, /* special_function */
1445 "R_PPC64_TPREL64", /* name */
1446 FALSE, /* partial_inplace */
1448 ONES (64), /* dst_mask */
1449 FALSE), /* pcrel_offset */
1451 /* A 16 bit tprel reloc. */
1452 HOWTO (R_PPC64_TPREL16,
1454 1, /* size (0 = byte, 1 = short, 2 = long) */
1456 FALSE, /* pc_relative */
1458 complain_overflow_signed, /* complain_on_overflow */
1459 ppc64_elf_unhandled_reloc, /* special_function */
1460 "R_PPC64_TPREL16", /* name */
1461 FALSE, /* partial_inplace */
1463 0xffff, /* dst_mask */
1464 FALSE), /* pcrel_offset */
1466 /* Like TPREL16, but no overflow. */
1467 HOWTO (R_PPC64_TPREL16_LO,
1469 1, /* size (0 = byte, 1 = short, 2 = long) */
1471 FALSE, /* pc_relative */
1473 complain_overflow_dont, /* complain_on_overflow */
1474 ppc64_elf_unhandled_reloc, /* special_function */
1475 "R_PPC64_TPREL16_LO", /* name */
1476 FALSE, /* partial_inplace */
1478 0xffff, /* dst_mask */
1479 FALSE), /* pcrel_offset */
1481 /* Like TPREL16_LO, but next higher group of 16 bits. */
1482 HOWTO (R_PPC64_TPREL16_HI,
1483 16, /* rightshift */
1484 1, /* size (0 = byte, 1 = short, 2 = long) */
1486 FALSE, /* pc_relative */
1488 complain_overflow_dont, /* complain_on_overflow */
1489 ppc64_elf_unhandled_reloc, /* special_function */
1490 "R_PPC64_TPREL16_HI", /* name */
1491 FALSE, /* partial_inplace */
1493 0xffff, /* dst_mask */
1494 FALSE), /* pcrel_offset */
1496 /* Like TPREL16_HI, but adjust for low 16 bits. */
1497 HOWTO (R_PPC64_TPREL16_HA,
1498 16, /* rightshift */
1499 1, /* size (0 = byte, 1 = short, 2 = long) */
1501 FALSE, /* pc_relative */
1503 complain_overflow_dont, /* complain_on_overflow */
1504 ppc64_elf_unhandled_reloc, /* special_function */
1505 "R_PPC64_TPREL16_HA", /* name */
1506 FALSE, /* partial_inplace */
1508 0xffff, /* dst_mask */
1509 FALSE), /* pcrel_offset */
1511 /* Like TPREL16_HI, but next higher group of 16 bits. */
1512 HOWTO (R_PPC64_TPREL16_HIGHER,
1513 32, /* rightshift */
1514 1, /* size (0 = byte, 1 = short, 2 = long) */
1516 FALSE, /* pc_relative */
1518 complain_overflow_dont, /* complain_on_overflow */
1519 ppc64_elf_unhandled_reloc, /* special_function */
1520 "R_PPC64_TPREL16_HIGHER", /* name */
1521 FALSE, /* partial_inplace */
1523 0xffff, /* dst_mask */
1524 FALSE), /* pcrel_offset */
1526 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1527 HOWTO (R_PPC64_TPREL16_HIGHERA,
1528 32, /* rightshift */
1529 1, /* size (0 = byte, 1 = short, 2 = long) */
1531 FALSE, /* pc_relative */
1533 complain_overflow_dont, /* complain_on_overflow */
1534 ppc64_elf_unhandled_reloc, /* special_function */
1535 "R_PPC64_TPREL16_HIGHERA", /* name */
1536 FALSE, /* partial_inplace */
1538 0xffff, /* dst_mask */
1539 FALSE), /* pcrel_offset */
1541 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1542 HOWTO (R_PPC64_TPREL16_HIGHEST,
1543 48, /* rightshift */
1544 1, /* size (0 = byte, 1 = short, 2 = long) */
1546 FALSE, /* pc_relative */
1548 complain_overflow_dont, /* complain_on_overflow */
1549 ppc64_elf_unhandled_reloc, /* special_function */
1550 "R_PPC64_TPREL16_HIGHEST", /* name */
1551 FALSE, /* partial_inplace */
1553 0xffff, /* dst_mask */
1554 FALSE), /* pcrel_offset */
1556 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1557 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1558 48, /* rightshift */
1559 1, /* size (0 = byte, 1 = short, 2 = long) */
1561 FALSE, /* pc_relative */
1563 complain_overflow_dont, /* complain_on_overflow */
1564 ppc64_elf_unhandled_reloc, /* special_function */
1565 "R_PPC64_TPREL16_HIGHESTA", /* name */
1566 FALSE, /* partial_inplace */
1568 0xffff, /* dst_mask */
1569 FALSE), /* pcrel_offset */
1571 /* Like TPREL16, but for insns with a DS field. */
1572 HOWTO (R_PPC64_TPREL16_DS,
1574 1, /* size (0 = byte, 1 = short, 2 = long) */
1576 FALSE, /* pc_relative */
1578 complain_overflow_signed, /* complain_on_overflow */
1579 ppc64_elf_unhandled_reloc, /* special_function */
1580 "R_PPC64_TPREL16_DS", /* name */
1581 FALSE, /* partial_inplace */
1583 0xfffc, /* dst_mask */
1584 FALSE), /* pcrel_offset */
1586 /* Like TPREL16_DS, but no overflow. */
1587 HOWTO (R_PPC64_TPREL16_LO_DS,
1589 1, /* size (0 = byte, 1 = short, 2 = long) */
1591 FALSE, /* pc_relative */
1593 complain_overflow_dont, /* complain_on_overflow */
1594 ppc64_elf_unhandled_reloc, /* special_function */
1595 "R_PPC64_TPREL16_LO_DS", /* name */
1596 FALSE, /* partial_inplace */
1598 0xfffc, /* dst_mask */
1599 FALSE), /* pcrel_offset */
1601 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1602 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1603 to the first entry relative to the TOC base (r2). */
1604 HOWTO (R_PPC64_GOT_TLSGD16,
1606 1, /* size (0 = byte, 1 = short, 2 = long) */
1608 FALSE, /* pc_relative */
1610 complain_overflow_signed, /* complain_on_overflow */
1611 ppc64_elf_unhandled_reloc, /* special_function */
1612 "R_PPC64_GOT_TLSGD16", /* name */
1613 FALSE, /* partial_inplace */
1615 0xffff, /* dst_mask */
1616 FALSE), /* pcrel_offset */
1618 /* Like GOT_TLSGD16, but no overflow. */
1619 HOWTO (R_PPC64_GOT_TLSGD16_LO,
1621 1, /* size (0 = byte, 1 = short, 2 = long) */
1623 FALSE, /* pc_relative */
1625 complain_overflow_dont, /* complain_on_overflow */
1626 ppc64_elf_unhandled_reloc, /* special_function */
1627 "R_PPC64_GOT_TLSGD16_LO", /* name */
1628 FALSE, /* partial_inplace */
1630 0xffff, /* dst_mask */
1631 FALSE), /* pcrel_offset */
1633 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1634 HOWTO (R_PPC64_GOT_TLSGD16_HI,
1635 16, /* rightshift */
1636 1, /* size (0 = byte, 1 = short, 2 = long) */
1638 FALSE, /* pc_relative */
1640 complain_overflow_dont, /* complain_on_overflow */
1641 ppc64_elf_unhandled_reloc, /* special_function */
1642 "R_PPC64_GOT_TLSGD16_HI", /* name */
1643 FALSE, /* partial_inplace */
1645 0xffff, /* dst_mask */
1646 FALSE), /* pcrel_offset */
1648 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1649 HOWTO (R_PPC64_GOT_TLSGD16_HA,
1650 16, /* rightshift */
1651 1, /* size (0 = byte, 1 = short, 2 = long) */
1653 FALSE, /* pc_relative */
1655 complain_overflow_dont, /* complain_on_overflow */
1656 ppc64_elf_unhandled_reloc, /* special_function */
1657 "R_PPC64_GOT_TLSGD16_HA", /* name */
1658 FALSE, /* partial_inplace */
1660 0xffff, /* dst_mask */
1661 FALSE), /* pcrel_offset */
1663 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1664 with values (sym+add)@dtpmod and zero, and computes the offset to the
1665 first entry relative to the TOC base (r2). */
1666 HOWTO (R_PPC64_GOT_TLSLD16,
1668 1, /* size (0 = byte, 1 = short, 2 = long) */
1670 FALSE, /* pc_relative */
1672 complain_overflow_signed, /* complain_on_overflow */
1673 ppc64_elf_unhandled_reloc, /* special_function */
1674 "R_PPC64_GOT_TLSLD16", /* name */
1675 FALSE, /* partial_inplace */
1677 0xffff, /* dst_mask */
1678 FALSE), /* pcrel_offset */
1680 /* Like GOT_TLSLD16, but no overflow. */
1681 HOWTO (R_PPC64_GOT_TLSLD16_LO,
1683 1, /* size (0 = byte, 1 = short, 2 = long) */
1685 FALSE, /* pc_relative */
1687 complain_overflow_dont, /* complain_on_overflow */
1688 ppc64_elf_unhandled_reloc, /* special_function */
1689 "R_PPC64_GOT_TLSLD16_LO", /* name */
1690 FALSE, /* partial_inplace */
1692 0xffff, /* dst_mask */
1693 FALSE), /* pcrel_offset */
1695 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1696 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1697 16, /* rightshift */
1698 1, /* size (0 = byte, 1 = short, 2 = long) */
1700 FALSE, /* pc_relative */
1702 complain_overflow_dont, /* complain_on_overflow */
1703 ppc64_elf_unhandled_reloc, /* special_function */
1704 "R_PPC64_GOT_TLSLD16_HI", /* name */
1705 FALSE, /* partial_inplace */
1707 0xffff, /* dst_mask */
1708 FALSE), /* pcrel_offset */
1710 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1711 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1712 16, /* rightshift */
1713 1, /* size (0 = byte, 1 = short, 2 = long) */
1715 FALSE, /* pc_relative */
1717 complain_overflow_dont, /* complain_on_overflow */
1718 ppc64_elf_unhandled_reloc, /* special_function */
1719 "R_PPC64_GOT_TLSLD16_HA", /* name */
1720 FALSE, /* partial_inplace */
1722 0xffff, /* dst_mask */
1723 FALSE), /* pcrel_offset */
1725 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1726 the offset to the entry relative to the TOC base (r2). */
1727 HOWTO (R_PPC64_GOT_DTPREL16_DS,
1729 1, /* size (0 = byte, 1 = short, 2 = long) */
1731 FALSE, /* pc_relative */
1733 complain_overflow_signed, /* complain_on_overflow */
1734 ppc64_elf_unhandled_reloc, /* special_function */
1735 "R_PPC64_GOT_DTPREL16_DS", /* name */
1736 FALSE, /* partial_inplace */
1738 0xfffc, /* dst_mask */
1739 FALSE), /* pcrel_offset */
1741 /* Like GOT_DTPREL16_DS, but no overflow. */
1742 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
1744 1, /* size (0 = byte, 1 = short, 2 = long) */
1746 FALSE, /* pc_relative */
1748 complain_overflow_dont, /* complain_on_overflow */
1749 ppc64_elf_unhandled_reloc, /* special_function */
1750 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
1751 FALSE, /* partial_inplace */
1753 0xfffc, /* dst_mask */
1754 FALSE), /* pcrel_offset */
1756 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1757 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1758 16, /* rightshift */
1759 1, /* size (0 = byte, 1 = short, 2 = long) */
1761 FALSE, /* pc_relative */
1763 complain_overflow_dont, /* complain_on_overflow */
1764 ppc64_elf_unhandled_reloc, /* special_function */
1765 "R_PPC64_GOT_DTPREL16_HI", /* name */
1766 FALSE, /* partial_inplace */
1768 0xffff, /* dst_mask */
1769 FALSE), /* pcrel_offset */
1771 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1772 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1773 16, /* rightshift */
1774 1, /* size (0 = byte, 1 = short, 2 = long) */
1776 FALSE, /* pc_relative */
1778 complain_overflow_dont, /* complain_on_overflow */
1779 ppc64_elf_unhandled_reloc, /* special_function */
1780 "R_PPC64_GOT_DTPREL16_HA", /* name */
1781 FALSE, /* partial_inplace */
1783 0xffff, /* dst_mask */
1784 FALSE), /* pcrel_offset */
1786 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1787 offset to the entry relative to the TOC base (r2). */
1788 HOWTO (R_PPC64_GOT_TPREL16_DS,
1790 1, /* size (0 = byte, 1 = short, 2 = long) */
1792 FALSE, /* pc_relative */
1794 complain_overflow_signed, /* complain_on_overflow */
1795 ppc64_elf_unhandled_reloc, /* special_function */
1796 "R_PPC64_GOT_TPREL16_DS", /* name */
1797 FALSE, /* partial_inplace */
1799 0xfffc, /* dst_mask */
1800 FALSE), /* pcrel_offset */
1802 /* Like GOT_TPREL16_DS, but no overflow. */
1803 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
1805 1, /* size (0 = byte, 1 = short, 2 = long) */
1807 FALSE, /* pc_relative */
1809 complain_overflow_dont, /* complain_on_overflow */
1810 ppc64_elf_unhandled_reloc, /* special_function */
1811 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
1812 FALSE, /* partial_inplace */
1814 0xfffc, /* dst_mask */
1815 FALSE), /* pcrel_offset */
1817 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1818 HOWTO (R_PPC64_GOT_TPREL16_HI,
1819 16, /* rightshift */
1820 1, /* size (0 = byte, 1 = short, 2 = long) */
1822 FALSE, /* pc_relative */
1824 complain_overflow_dont, /* complain_on_overflow */
1825 ppc64_elf_unhandled_reloc, /* special_function */
1826 "R_PPC64_GOT_TPREL16_HI", /* name */
1827 FALSE, /* partial_inplace */
1829 0xffff, /* dst_mask */
1830 FALSE), /* pcrel_offset */
1832 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1833 HOWTO (R_PPC64_GOT_TPREL16_HA,
1834 16, /* rightshift */
1835 1, /* size (0 = byte, 1 = short, 2 = long) */
1837 FALSE, /* pc_relative */
1839 complain_overflow_dont, /* complain_on_overflow */
1840 ppc64_elf_unhandled_reloc, /* special_function */
1841 "R_PPC64_GOT_TPREL16_HA", /* name */
1842 FALSE, /* partial_inplace */
1844 0xffff, /* dst_mask */
1845 FALSE), /* pcrel_offset */
1847 /* GNU extension to record C++ vtable hierarchy. */
1848 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1850 0, /* size (0 = byte, 1 = short, 2 = long) */
1852 FALSE, /* pc_relative */
1854 complain_overflow_dont, /* complain_on_overflow */
1855 NULL, /* special_function */
1856 "R_PPC64_GNU_VTINHERIT", /* name */
1857 FALSE, /* partial_inplace */
1860 FALSE), /* pcrel_offset */
1862 /* GNU extension to record C++ vtable member usage. */
1863 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1865 0, /* size (0 = byte, 1 = short, 2 = long) */
1867 FALSE, /* pc_relative */
1869 complain_overflow_dont, /* complain_on_overflow */
1870 NULL, /* special_function */
1871 "R_PPC64_GNU_VTENTRY", /* name */
1872 FALSE, /* partial_inplace */
1875 FALSE), /* pcrel_offset */
1879 /* Initialize the ppc64_elf_howto_table, so that linear accesses can
1883 ppc_howto_init (void)
1885 unsigned int i, type;
1888 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1891 type = ppc64_elf_howto_raw[i].type;
1892 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1893 / sizeof (ppc64_elf_howto_table[0])));
1894 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1898 static reloc_howto_type *
1899 ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1900 bfd_reloc_code_real_type code)
1902 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
1904 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1905 /* Initialize howto table if needed. */
1913 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1915 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1917 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1919 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1921 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1923 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1925 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
1927 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
1929 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
1931 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
1933 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
1935 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
1937 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
1939 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
1941 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
1943 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
1945 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
1947 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
1949 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
1951 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
1953 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
1955 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
1957 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
1959 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
1961 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
1963 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
1965 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
1967 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
1969 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
1971 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
1973 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
1975 case BFD_RELOC_64: r = R_PPC64_ADDR64;
1977 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
1979 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
1981 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
1983 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
1985 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
1987 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
1989 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
1991 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
1993 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
1995 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
1997 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
1999 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
2001 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
2003 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
2005 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
2007 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
2009 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
2011 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
2013 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
2015 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
2017 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
2019 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
2021 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
2023 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
2025 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
2027 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
2029 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
2031 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
2033 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
2035 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
2037 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
2039 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
2041 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
2043 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
2045 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2047 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2049 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2051 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2053 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2055 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2057 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2059 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2061 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2063 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2065 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2067 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2069 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2071 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2073 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2075 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2077 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2079 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2081 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2083 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2085 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2087 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2089 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2091 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2093 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2095 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2097 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2099 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2101 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2103 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2105 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2107 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2109 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2111 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2113 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
2117 return ppc64_elf_howto_table[r];
2120 static reloc_howto_type *
2121 ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2127 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
2129 if (ppc64_elf_howto_raw[i].name != NULL
2130 && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0)
2131 return &ppc64_elf_howto_raw[i];
2136 /* Set the howto pointer for a PowerPC ELF reloc. */
2139 ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2140 Elf_Internal_Rela *dst)
2144 /* Initialize howto table if needed. */
2145 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
2148 type = ELF64_R_TYPE (dst->r_info);
2149 if (type >= (sizeof (ppc64_elf_howto_table)
2150 / sizeof (ppc64_elf_howto_table[0])))
2152 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2154 type = R_PPC64_NONE;
2156 cache_ptr->howto = ppc64_elf_howto_table[type];
2159 /* Handle the R_PPC64_ADDR16_HA and similar relocs. */
2161 static bfd_reloc_status_type
2162 ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2163 void *data, asection *input_section,
2164 bfd *output_bfd, char **error_message)
2166 /* If this is a relocatable link (output_bfd test tells us), just
2167 call the generic function. Any adjustment will be done at final
2169 if (output_bfd != NULL)
2170 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2171 input_section, output_bfd, error_message);
2173 /* Adjust the addend for sign extension of the low 16 bits.
2174 We won't actually be using the low 16 bits, so trashing them
2176 reloc_entry->addend += 0x8000;
2177 return bfd_reloc_continue;
2180 static bfd_reloc_status_type
2181 ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2182 void *data, asection *input_section,
2183 bfd *output_bfd, char **error_message)
2185 if (output_bfd != NULL)
2186 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2187 input_section, output_bfd, error_message);
2189 if (strcmp (symbol->section->name, ".opd") == 0
2190 && (symbol->section->owner->flags & DYNAMIC) == 0)
2192 bfd_vma dest = opd_entry_value (symbol->section,
2193 symbol->value + reloc_entry->addend,
2195 if (dest != (bfd_vma) -1)
2196 reloc_entry->addend = dest - (symbol->value
2197 + symbol->section->output_section->vma
2198 + symbol->section->output_offset);
2200 return bfd_reloc_continue;
2203 static bfd_reloc_status_type
2204 ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2205 void *data, asection *input_section,
2206 bfd *output_bfd, char **error_message)
2209 enum elf_ppc64_reloc_type r_type;
2210 bfd_size_type octets;
2211 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
2212 bfd_boolean is_power4 = FALSE;
2214 /* If this is a relocatable link (output_bfd test tells us), just
2215 call the generic function. Any adjustment will be done at final
2217 if (output_bfd != NULL)
2218 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2219 input_section, output_bfd, error_message);
2221 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2222 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2223 insn &= ~(0x01 << 21);
2224 r_type = reloc_entry->howto->type;
2225 if (r_type == R_PPC64_ADDR14_BRTAKEN
2226 || r_type == R_PPC64_REL14_BRTAKEN)
2227 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
2231 /* Set 'a' bit. This is 0b00010 in BO field for branch
2232 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2233 for branch on CTR insns (BO == 1a00t or 1a01t). */
2234 if ((insn & (0x14 << 21)) == (0x04 << 21))
2236 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2246 if (!bfd_is_com_section (symbol->section))
2247 target = symbol->value;
2248 target += symbol->section->output_section->vma;
2249 target += symbol->section->output_offset;
2250 target += reloc_entry->addend;
2252 from = (reloc_entry->address
2253 + input_section->output_offset
2254 + input_section->output_section->vma);
2256 /* Invert 'y' bit if not the default. */
2257 if ((bfd_signed_vma) (target - from) < 0)
2260 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2262 return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data,
2263 input_section, output_bfd, error_message);
2266 static bfd_reloc_status_type
2267 ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2268 void *data, asection *input_section,
2269 bfd *output_bfd, char **error_message)
2271 /* If this is a relocatable link (output_bfd test tells us), just
2272 call the generic function. Any adjustment will be done at final
2274 if (output_bfd != NULL)
2275 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2276 input_section, output_bfd, error_message);
2278 /* Subtract the symbol section base address. */
2279 reloc_entry->addend -= symbol->section->output_section->vma;
2280 return bfd_reloc_continue;
2283 static bfd_reloc_status_type
2284 ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2285 void *data, asection *input_section,
2286 bfd *output_bfd, char **error_message)
2288 /* If this is a relocatable link (output_bfd test tells us), just
2289 call the generic function. Any adjustment will be done at final
2291 if (output_bfd != NULL)
2292 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2293 input_section, output_bfd, error_message);
2295 /* Subtract the symbol section base address. */
2296 reloc_entry->addend -= symbol->section->output_section->vma;
2298 /* Adjust the addend for sign extension of the low 16 bits. */
2299 reloc_entry->addend += 0x8000;
2300 return bfd_reloc_continue;
2303 static bfd_reloc_status_type
2304 ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2305 void *data, asection *input_section,
2306 bfd *output_bfd, char **error_message)
2310 /* If this is a relocatable link (output_bfd test tells us), just
2311 call the generic function. Any adjustment will be done at final
2313 if (output_bfd != NULL)
2314 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2315 input_section, output_bfd, error_message);
2317 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2319 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2321 /* Subtract the TOC base address. */
2322 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2323 return bfd_reloc_continue;
2326 static bfd_reloc_status_type
2327 ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2328 void *data, asection *input_section,
2329 bfd *output_bfd, char **error_message)
2333 /* If this is a relocatable link (output_bfd test tells us), just
2334 call the generic function. Any adjustment will be done at final
2336 if (output_bfd != NULL)
2337 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2338 input_section, output_bfd, error_message);
2340 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2342 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2344 /* Subtract the TOC base address. */
2345 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2347 /* Adjust the addend for sign extension of the low 16 bits. */
2348 reloc_entry->addend += 0x8000;
2349 return bfd_reloc_continue;
2352 static bfd_reloc_status_type
2353 ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2354 void *data, asection *input_section,
2355 bfd *output_bfd, char **error_message)
2358 bfd_size_type octets;
2360 /* If this is a relocatable link (output_bfd test tells us), just
2361 call the generic function. Any adjustment will be done at final
2363 if (output_bfd != NULL)
2364 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2365 input_section, output_bfd, error_message);
2367 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2369 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2371 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2372 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2373 return bfd_reloc_ok;
2376 static bfd_reloc_status_type
2377 ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2378 void *data, asection *input_section,
2379 bfd *output_bfd, char **error_message)
2381 /* If this is a relocatable link (output_bfd test tells us), just
2382 call the generic function. Any adjustment will be done at final
2384 if (output_bfd != NULL)
2385 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2386 input_section, output_bfd, error_message);
2388 if (error_message != NULL)
2390 static char buf[60];
2391 sprintf (buf, "generic linker can't handle %s",
2392 reloc_entry->howto->name);
2393 *error_message = buf;
2395 return bfd_reloc_dangerous;
2398 struct ppc64_elf_obj_tdata
2400 struct elf_obj_tdata elf;
2402 /* Shortcuts to dynamic linker sections. */
2406 /* Used during garbage collection. We attach global symbols defined
2407 on removed .opd entries to this section so that the sym is removed. */
2408 asection *deleted_section;
2410 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2411 sections means we potentially need one of these for each input bfd. */
2413 bfd_signed_vma refcount;
2417 /* A copy of relocs before they are modified for --emit-relocs. */
2418 Elf_Internal_Rela *opd_relocs;
2421 #define ppc64_elf_tdata(bfd) \
2422 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2424 #define ppc64_tlsld_got(bfd) \
2425 (&ppc64_elf_tdata (bfd)->tlsld_got)
2427 /* Override the generic function because we store some extras. */
2430 ppc64_elf_mkobject (bfd *abfd)
2432 if (abfd->tdata.any == NULL)
2434 bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata);
2435 abfd->tdata.any = bfd_zalloc (abfd, amt);
2436 if (abfd->tdata.any == NULL)
2439 return bfd_elf_mkobject (abfd);
2442 /* Return 1 if target is one of ours. */
2445 is_ppc64_elf_target (const struct bfd_target *targ)
2447 extern const bfd_target bfd_elf64_powerpc_vec;
2448 extern const bfd_target bfd_elf64_powerpcle_vec;
2450 return targ == &bfd_elf64_powerpc_vec || targ == &bfd_elf64_powerpcle_vec;
2453 /* Fix bad default arch selected for a 64 bit input bfd when the
2454 default is 32 bit. */
2457 ppc64_elf_object_p (bfd *abfd)
2459 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2461 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2463 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2465 /* Relies on arch after 32 bit default being 64 bit default. */
2466 abfd->arch_info = abfd->arch_info->next;
2467 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2473 /* Support for core dump NOTE sections. */
2476 ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2478 size_t offset, size;
2480 if (note->descsz != 504)
2484 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2487 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2493 /* Make a ".reg/999" section. */
2494 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2495 size, note->descpos + offset);
2499 ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2501 if (note->descsz != 136)
2504 elf_tdata (abfd)->core_program
2505 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2506 elf_tdata (abfd)->core_command
2507 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2513 ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type,
2526 va_start (ap, note_type);
2527 memset (data, 0, 40);
2528 strncpy (data + 40, va_arg (ap, const char *), 16);
2529 strncpy (data + 56, va_arg (ap, const char *), 80);
2531 return elfcore_write_note (abfd, buf, bufsiz,
2532 "CORE", note_type, data, sizeof (data));
2543 va_start (ap, note_type);
2544 memset (data, 0, 112);
2545 pid = va_arg (ap, long);
2546 bfd_put_32 (abfd, pid, data + 32);
2547 cursig = va_arg (ap, int);
2548 bfd_put_16 (abfd, cursig, data + 12);
2549 greg = va_arg (ap, const void *);
2550 memcpy (data + 112, greg, 384);
2551 memset (data + 496, 0, 8);
2553 return elfcore_write_note (abfd, buf, bufsiz,
2554 "CORE", note_type, data, sizeof (data));
2559 /* Merge backend specific data from an object file to the output
2560 object file when linking. */
2563 ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
2565 /* Check if we have the same endianess. */
2566 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
2567 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
2568 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2572 if (bfd_big_endian (ibfd))
2573 msg = _("%B: compiled for a big endian system "
2574 "and target is little endian");
2576 msg = _("%B: compiled for a little endian system "
2577 "and target is big endian");
2579 (*_bfd_error_handler) (msg, ibfd);
2581 bfd_set_error (bfd_error_wrong_format);
2588 /* Add extra PPC sections. */
2590 static const struct bfd_elf_special_section ppc64_elf_special_sections[]=
2592 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 },
2593 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2594 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2595 { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2596 { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2597 { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2598 { NULL, 0, 0, 0, 0 }
2601 enum _ppc64_sec_type {
2607 struct _ppc64_elf_section_data
2609 struct bfd_elf_section_data elf;
2611 /* An array with one entry for each opd function descriptor. */
2614 /* Points to the function code section for local opd entries. */
2615 asection **opd_func_sec;
2616 /* After editing .opd, adjust references to opd local syms. */
2619 /* An array for toc sections, indexed by offset/8.
2620 Specifies the relocation symbol index used at a given toc offset. */
2624 enum _ppc64_sec_type sec_type:2;
2626 /* Flag set when small branches are detected. Used to
2627 select suitable defaults for the stub group size. */
2628 unsigned int has_14bit_branch:1;
2631 #define ppc64_elf_section_data(sec) \
2632 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
2635 ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
2637 if (!sec->used_by_bfd)
2639 struct _ppc64_elf_section_data *sdata;
2640 bfd_size_type amt = sizeof (*sdata);
2642 sdata = bfd_zalloc (abfd, amt);
2645 sec->used_by_bfd = sdata;
2648 return _bfd_elf_new_section_hook (abfd, sec);
2652 get_opd_info (asection * sec)
2655 && ppc64_elf_section_data (sec) != NULL
2656 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
2657 return ppc64_elf_section_data (sec)->u.opd_adjust;
2661 /* Parameters for the qsort hook. */
2662 static asection *synthetic_opd;
2663 static bfd_boolean synthetic_relocatable;
2665 /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */
2668 compare_symbols (const void *ap, const void *bp)
2670 const asymbol *a = * (const asymbol **) ap;
2671 const asymbol *b = * (const asymbol **) bp;
2673 /* Section symbols first. */
2674 if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM))
2676 if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM))
2679 /* then .opd symbols. */
2680 if (a->section == synthetic_opd && b->section != synthetic_opd)
2682 if (a->section != synthetic_opd && b->section == synthetic_opd)
2685 /* then other code symbols. */
2686 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2687 == (SEC_CODE | SEC_ALLOC)
2688 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2689 != (SEC_CODE | SEC_ALLOC))
2692 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2693 != (SEC_CODE | SEC_ALLOC)
2694 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2695 == (SEC_CODE | SEC_ALLOC))
2698 if (synthetic_relocatable)
2700 if (a->section->id < b->section->id)
2703 if (a->section->id > b->section->id)
2707 if (a->value + a->section->vma < b->value + b->section->vma)
2710 if (a->value + a->section->vma > b->value + b->section->vma)
2713 /* For syms with the same value, prefer strong dynamic global function
2714 syms over other syms. */
2715 if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0)
2718 if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0)
2721 if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0)
2724 if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0)
2727 if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0)
2730 if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0)
2733 if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0)
2736 if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0)
2742 /* Search SYMS for a symbol of the given VALUE. */
2745 sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value)
2753 mid = (lo + hi) >> 1;
2754 if (syms[mid]->value + syms[mid]->section->vma < value)
2756 else if (syms[mid]->value + syms[mid]->section->vma > value)
2766 mid = (lo + hi) >> 1;
2767 if (syms[mid]->section->id < id)
2769 else if (syms[mid]->section->id > id)
2771 else if (syms[mid]->value < value)
2773 else if (syms[mid]->value > value)
2782 /* Create synthetic symbols, effectively restoring "dot-symbol" function
2786 ppc64_elf_get_synthetic_symtab (bfd *abfd,
2787 long static_count, asymbol **static_syms,
2788 long dyn_count, asymbol **dyn_syms,
2795 long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
2797 bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
2802 opd = bfd_get_section_by_name (abfd, ".opd");
2806 symcount = static_count;
2808 symcount += dyn_count;
2812 syms = bfd_malloc ((symcount + 1) * sizeof (*syms));
2816 if (!relocatable && static_count != 0 && dyn_count != 0)
2818 /* Use both symbol tables. */
2819 memcpy (syms, static_syms, static_count * sizeof (*syms));
2820 memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms));
2822 else if (!relocatable && static_count == 0)
2823 memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms));
2825 memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms));
2827 synthetic_opd = opd;
2828 synthetic_relocatable = relocatable;
2829 qsort (syms, symcount, sizeof (*syms), compare_symbols);
2831 if (!relocatable && symcount > 1)
2834 /* Trim duplicate syms, since we may have merged the normal and
2835 dynamic symbols. Actually, we only care about syms that have
2836 different values, so trim any with the same value. */
2837 for (i = 1, j = 1; i < symcount; ++i)
2838 if (syms[i - 1]->value + syms[i - 1]->section->vma
2839 != syms[i]->value + syms[i]->section->vma)
2840 syms[j++] = syms[i];
2845 if (syms[i]->section == opd)
2849 for (; i < symcount; ++i)
2850 if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2851 != (SEC_CODE | SEC_ALLOC))
2852 || (syms[i]->flags & BSF_SECTION_SYM) == 0)
2856 for (; i < symcount; ++i)
2857 if ((syms[i]->flags & BSF_SECTION_SYM) == 0)
2861 for (; i < symcount; ++i)
2862 if (syms[i]->section != opd)
2866 for (; i < symcount; ++i)
2867 if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2868 != (SEC_CODE | SEC_ALLOC))
2873 if (opdsymend == secsymend)
2878 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2883 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2884 relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0;
2888 if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE))
2895 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
2899 while (r < opd->relocation + relcount
2900 && r->address < syms[i]->value + opd->vma)
2903 if (r == opd->relocation + relcount)
2906 if (r->address != syms[i]->value + opd->vma)
2909 if (r->howto->type != R_PPC64_ADDR64)
2912 sym = *r->sym_ptr_ptr;
2913 if (!sym_exists_at (syms, opdsymend, symcount,
2914 sym->section->id, sym->value + r->addend))
2917 size += sizeof (asymbol);
2918 size += strlen (syms[i]->name) + 2;
2922 s = *ret = bfd_malloc (size);
2929 names = (char *) (s + count);
2931 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
2935 while (r < opd->relocation + relcount
2936 && r->address < syms[i]->value + opd->vma)
2939 if (r == opd->relocation + relcount)
2942 if (r->address != syms[i]->value + opd->vma)
2945 if (r->howto->type != R_PPC64_ADDR64)
2948 sym = *r->sym_ptr_ptr;
2949 if (!sym_exists_at (syms, opdsymend, symcount,
2950 sym->section->id, sym->value + r->addend))
2955 s->section = sym->section;
2956 s->value = sym->value + r->addend;
2959 len = strlen (syms[i]->name);
2960 memcpy (names, syms[i]->name, len + 1);
2971 if (!bfd_malloc_and_get_section (abfd, opd, &contents))
2975 free_contents_and_exit:
2983 for (i = secsymend; i < opdsymend; ++i)
2987 ent = bfd_get_64 (abfd, contents + syms[i]->value);
2988 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
2991 size += sizeof (asymbol);
2992 size += strlen (syms[i]->name) + 2;
2996 s = *ret = bfd_malloc (size);
2998 goto free_contents_and_exit;
3000 names = (char *) (s + count);
3002 for (i = secsymend; i < opdsymend; ++i)
3006 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3007 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
3011 asection *sec = abfd->sections;
3018 long mid = (lo + hi) >> 1;
3019 if (syms[mid]->section->vma < ent)
3021 else if (syms[mid]->section->vma > ent)
3025 sec = syms[mid]->section;
3030 if (lo >= hi && lo > codesecsym)
3031 sec = syms[lo - 1]->section;
3033 for (; sec != NULL; sec = sec->next)
3037 if ((sec->flags & SEC_ALLOC) == 0
3038 || (sec->flags & SEC_LOAD) == 0)
3040 if ((sec->flags & SEC_CODE) != 0)
3043 s->value = ent - s->section->vma;
3046 len = strlen (syms[i]->name);
3047 memcpy (names, syms[i]->name, len + 1);
3060 /* The following functions are specific to the ELF linker, while
3061 functions above are used generally. Those named ppc64_elf_* are
3062 called by the main ELF linker code. They appear in this file more
3063 or less in the order in which they are called. eg.
3064 ppc64_elf_check_relocs is called early in the link process,
3065 ppc64_elf_finish_dynamic_sections is one of the last functions
3068 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
3069 functions have both a function code symbol and a function descriptor
3070 symbol. A call to foo in a relocatable object file looks like:
3077 The function definition in another object file might be:
3081 . .quad .TOC.@tocbase
3087 When the linker resolves the call during a static link, the branch
3088 unsurprisingly just goes to .foo and the .opd information is unused.
3089 If the function definition is in a shared library, things are a little
3090 different: The call goes via a plt call stub, the opd information gets
3091 copied to the plt, and the linker patches the nop.
3099 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
3100 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
3101 . std 2,40(1) # this is the general idea
3109 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
3111 The "reloc ()" notation is supposed to indicate that the linker emits
3112 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
3115 What are the difficulties here? Well, firstly, the relocations
3116 examined by the linker in check_relocs are against the function code
3117 sym .foo, while the dynamic relocation in the plt is emitted against
3118 the function descriptor symbol, foo. Somewhere along the line, we need
3119 to carefully copy dynamic link information from one symbol to the other.
3120 Secondly, the generic part of the elf linker will make .foo a dynamic
3121 symbol as is normal for most other backends. We need foo dynamic
3122 instead, at least for an application final link. However, when
3123 creating a shared library containing foo, we need to have both symbols
3124 dynamic so that references to .foo are satisfied during the early
3125 stages of linking. Otherwise the linker might decide to pull in a
3126 definition from some other object, eg. a static library.
3128 Update: As of August 2004, we support a new convention. Function
3129 calls may use the function descriptor symbol, ie. "bl foo". This
3130 behaves exactly as "bl .foo". */
3132 /* The linker needs to keep track of the number of relocs that it
3133 decides to copy as dynamic relocs in check_relocs for each symbol.
3134 This is so that it can later discard them if they are found to be
3135 unnecessary. We store the information in a field extending the
3136 regular ELF linker hash table. */
3138 struct ppc_dyn_relocs
3140 struct ppc_dyn_relocs *next;
3142 /* The input section of the reloc. */
3145 /* Total number of relocs copied for the input section. */
3146 bfd_size_type count;
3148 /* Number of pc-relative relocs copied for the input section. */
3149 bfd_size_type pc_count;
3152 /* Track GOT entries needed for a given symbol. We might need more
3153 than one got entry per symbol. */
3156 struct got_entry *next;
3158 /* The symbol addend that we'll be placing in the GOT. */
3161 /* Unlike other ELF targets, we use separate GOT entries for the same
3162 symbol referenced from different input files. This is to support
3163 automatic multiple TOC/GOT sections, where the TOC base can vary
3164 from one input file to another. FIXME: After group_sections we
3165 ought to merge entries within the group.
3167 Point to the BFD owning this GOT entry. */
3170 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
3171 TLS_TPREL or TLS_DTPREL for tls entries. */
3174 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
3177 bfd_signed_vma refcount;
3182 /* The same for PLT. */
3185 struct plt_entry *next;
3191 bfd_signed_vma refcount;
3196 /* Of those relocs that might be copied as dynamic relocs, this macro
3197 selects those that must be copied when linking a shared library,
3198 even when the symbol is local. */
3200 #define MUST_BE_DYN_RELOC(RTYPE) \
3201 ((RTYPE) != R_PPC64_REL32 \
3202 && (RTYPE) != R_PPC64_REL64 \
3203 && (RTYPE) != R_PPC64_REL30)
3205 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3206 copying dynamic variables from a shared lib into an app's dynbss
3207 section, and instead use a dynamic relocation to point into the
3208 shared lib. With code that gcc generates, it's vital that this be
3209 enabled; In the PowerPC64 ABI, the address of a function is actually
3210 the address of a function descriptor, which resides in the .opd
3211 section. gcc uses the descriptor directly rather than going via the
3212 GOT as some other ABI's do, which means that initialized function
3213 pointers must reference the descriptor. Thus, a function pointer
3214 initialized to the address of a function in a shared library will
3215 either require a copy reloc, or a dynamic reloc. Using a copy reloc
3216 redefines the function descriptor symbol to point to the copy. This
3217 presents a problem as a plt entry for that function is also
3218 initialized from the function descriptor symbol and the copy reloc
3219 may not be initialized first. */
3220 #define ELIMINATE_COPY_RELOCS 1
3222 /* Section name for stubs is the associated section name plus this
3224 #define STUB_SUFFIX ".stub"
3227 ppc_stub_long_branch:
3228 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3229 destination, but a 24 bit branch in a stub section will reach.
3232 ppc_stub_plt_branch:
3233 Similar to the above, but a 24 bit branch in the stub section won't
3234 reach its destination.
3235 . addis %r12,%r2,xxx@toc@ha
3236 . ld %r11,xxx@toc@l(%r12)
3241 Used to call a function in a shared library. If it so happens that
3242 the plt entry referenced crosses a 64k boundary, then an extra
3243 "addi %r12,%r12,xxx@toc@l" will be inserted before the "mtctr".
3244 . addis %r12,%r2,xxx@toc@ha
3246 . ld %r11,xxx+0@toc@l(%r12)
3248 . ld %r2,xxx+8@toc@l(%r12)
3249 . ld %r11,xxx+16@toc@l(%r12)
3252 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3253 code to adjust the value and save r2 to support multiple toc sections.
3254 A ppc_stub_long_branch with an r2 offset looks like:
3256 . addis %r2,%r2,off@ha
3257 . addi %r2,%r2,off@l
3260 A ppc_stub_plt_branch with an r2 offset looks like:
3262 . addis %r12,%r2,xxx@toc@ha
3263 . ld %r11,xxx@toc@l(%r12)
3264 . addis %r2,%r2,off@ha
3265 . addi %r2,%r2,off@l
3269 In cases where the "addis" instruction would add zero, the "addis" is
3270 omitted and following instructions modified slightly in some cases.
3273 enum ppc_stub_type {
3275 ppc_stub_long_branch,
3276 ppc_stub_long_branch_r2off,
3277 ppc_stub_plt_branch,
3278 ppc_stub_plt_branch_r2off,
3282 struct ppc_stub_hash_entry {
3284 /* Base hash table entry structure. */
3285 struct bfd_hash_entry root;
3287 enum ppc_stub_type stub_type;
3289 /* The stub section. */
3292 /* Offset within stub_sec of the beginning of this stub. */
3293 bfd_vma stub_offset;
3295 /* Given the symbol's value and its section we can determine its final
3296 value when building the stubs (so the stub knows where to jump. */
3297 bfd_vma target_value;
3298 asection *target_section;
3300 /* The symbol table entry, if any, that this was derived from. */
3301 struct ppc_link_hash_entry *h;
3303 /* And the reloc addend that this was derived from. */
3306 /* Where this stub is being called from, or, in the case of combined
3307 stub sections, the first input section in the group. */
3311 struct ppc_branch_hash_entry {
3313 /* Base hash table entry structure. */
3314 struct bfd_hash_entry root;
3316 /* Offset within branch lookup table. */
3317 unsigned int offset;
3319 /* Generation marker. */
3323 struct ppc_link_hash_entry
3325 struct elf_link_hash_entry elf;
3328 /* A pointer to the most recently used stub hash entry against this
3330 struct ppc_stub_hash_entry *stub_cache;
3332 /* A pointer to the next symbol starting with a '.' */
3333 struct ppc_link_hash_entry *next_dot_sym;
3336 /* Track dynamic relocs copied for this symbol. */
3337 struct ppc_dyn_relocs *dyn_relocs;
3339 /* Link between function code and descriptor symbols. */
3340 struct ppc_link_hash_entry *oh;
3342 /* Flag function code and descriptor symbols. */
3343 unsigned int is_func:1;
3344 unsigned int is_func_descriptor:1;
3345 unsigned int fake:1;
3347 /* Whether global opd/toc sym has been adjusted or not.
3348 After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag
3349 should be set for all globals defined in any opd/toc section. */
3350 unsigned int adjust_done:1;
3352 /* Set if we twiddled this symbol to weak at some stage. */
3353 unsigned int was_undefined:1;
3355 /* Contexts in which symbol is used in the GOT (or TOC).
3356 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
3357 corresponding relocs are encountered during check_relocs.
3358 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3359 indicate the corresponding GOT entry type is not needed.
3360 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
3361 a TPREL one. We use a separate flag rather than setting TPREL
3362 just for convenience in distinguishing the two cases. */
3363 #define TLS_GD 1 /* GD reloc. */
3364 #define TLS_LD 2 /* LD reloc. */
3365 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
3366 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3367 #define TLS_TLS 16 /* Any TLS reloc. */
3368 #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
3369 #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
3373 /* ppc64 ELF linker hash table. */
3375 struct ppc_link_hash_table
3377 struct elf_link_hash_table elf;
3379 /* The stub hash table. */
3380 struct bfd_hash_table stub_hash_table;
3382 /* Another hash table for plt_branch stubs. */
3383 struct bfd_hash_table branch_hash_table;
3385 /* Linker stub bfd. */
3388 /* Linker call-backs. */
3389 asection * (*add_stub_section) (const char *, asection *);
3390 void (*layout_sections_again) (void);
3392 /* Array to keep track of which stub sections have been created, and
3393 information on stub grouping. */
3395 /* This is the section to which stubs in the group will be attached. */
3397 /* The stub section. */
3399 /* Along with elf_gp, specifies the TOC pointer used in this group. */
3403 /* Temp used when calculating TOC pointers. */
3406 /* Highest input section id. */
3409 /* Highest output section index. */
3412 /* Used when adding symbols. */
3413 struct ppc_link_hash_entry *dot_syms;
3415 /* List of input sections for each output section. */
3416 asection **input_list;
3418 /* Short-cuts to get to dynamic linker sections. */
3429 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
3430 struct ppc_link_hash_entry *tls_get_addr;
3431 struct ppc_link_hash_entry *tls_get_addr_fd;
3434 unsigned long stub_count[ppc_stub_plt_call];
3436 /* Number of stubs against global syms. */
3437 unsigned long stub_globals;
3439 /* Set if we should emit symbols for stubs. */
3440 unsigned int emit_stub_syms:1;
3442 /* Support for multiple toc sections. */
3443 unsigned int no_multi_toc:1;
3444 unsigned int multi_toc_needed:1;
3447 unsigned int stub_error:1;
3449 /* Temp used by ppc64_elf_check_directives. */
3450 unsigned int twiddled_syms:1;
3452 /* Incremented every time we size stubs. */
3453 unsigned int stub_iteration;
3455 /* Small local sym to section mapping cache. */
3456 struct sym_sec_cache sym_sec;
3459 /* Rename some of the generic section flags to better document how they
3461 #define has_toc_reloc has_gp_reloc
3462 #define makes_toc_func_call need_finalize_relax
3463 #define call_check_in_progress reloc_done
3465 /* Get the ppc64 ELF linker hash table from a link_info structure. */
3467 #define ppc_hash_table(p) \
3468 ((struct ppc_link_hash_table *) ((p)->hash))
3470 #define ppc_stub_hash_lookup(table, string, create, copy) \
3471 ((struct ppc_stub_hash_entry *) \
3472 bfd_hash_lookup ((table), (string), (create), (copy)))
3474 #define ppc_branch_hash_lookup(table, string, create, copy) \
3475 ((struct ppc_branch_hash_entry *) \
3476 bfd_hash_lookup ((table), (string), (create), (copy)))
3478 /* Create an entry in the stub hash table. */
3480 static struct bfd_hash_entry *
3481 stub_hash_newfunc (struct bfd_hash_entry *entry,
3482 struct bfd_hash_table *table,
3485 /* Allocate the structure if it has not already been allocated by a
3489 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
3494 /* Call the allocation method of the superclass. */
3495 entry = bfd_hash_newfunc (entry, table, string);
3498 struct ppc_stub_hash_entry *eh;
3500 /* Initialize the local fields. */
3501 eh = (struct ppc_stub_hash_entry *) entry;
3502 eh->stub_type = ppc_stub_none;
3503 eh->stub_sec = NULL;
3504 eh->stub_offset = 0;
3505 eh->target_value = 0;
3506 eh->target_section = NULL;
3514 /* Create an entry in the branch hash table. */
3516 static struct bfd_hash_entry *
3517 branch_hash_newfunc (struct bfd_hash_entry *entry,
3518 struct bfd_hash_table *table,
3521 /* Allocate the structure if it has not already been allocated by a
3525 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
3530 /* Call the allocation method of the superclass. */
3531 entry = bfd_hash_newfunc (entry, table, string);
3534 struct ppc_branch_hash_entry *eh;
3536 /* Initialize the local fields. */
3537 eh = (struct ppc_branch_hash_entry *) entry;
3545 /* Create an entry in a ppc64 ELF linker hash table. */
3547 static struct bfd_hash_entry *
3548 link_hash_newfunc (struct bfd_hash_entry *entry,
3549 struct bfd_hash_table *table,
3552 /* Allocate the structure if it has not already been allocated by a
3556 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
3561 /* Call the allocation method of the superclass. */
3562 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3565 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
3567 memset (&eh->u.stub_cache, 0,
3568 (sizeof (struct ppc_link_hash_entry)
3569 - offsetof (struct ppc_link_hash_entry, u.stub_cache)));
3571 /* When making function calls, old ABI code references function entry
3572 points (dot symbols), while new ABI code references the function
3573 descriptor symbol. We need to make any combination of reference and
3574 definition work together, without breaking archive linking.
3576 For a defined function "foo" and an undefined call to "bar":
3577 An old object defines "foo" and ".foo", references ".bar" (possibly
3579 A new object defines "foo" and references "bar".
3581 A new object thus has no problem with its undefined symbols being
3582 satisfied by definitions in an old object. On the other hand, the
3583 old object won't have ".bar" satisfied by a new object.
3585 Keep a list of newly added dot-symbols. */
3587 if (string[0] == '.')
3589 struct ppc_link_hash_table *htab;
3591 htab = (struct ppc_link_hash_table *) table;
3592 eh->u.next_dot_sym = htab->dot_syms;
3593 htab->dot_syms = eh;
3600 /* Create a ppc64 ELF linker hash table. */
3602 static struct bfd_link_hash_table *
3603 ppc64_elf_link_hash_table_create (bfd *abfd)
3605 struct ppc_link_hash_table *htab;
3606 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
3608 htab = bfd_zmalloc (amt);
3612 if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc,
3613 sizeof (struct ppc_link_hash_entry)))
3619 /* Init the stub hash table too. */
3620 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc,
3621 sizeof (struct ppc_stub_hash_entry)))
3624 /* And the branch hash table. */
3625 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc,
3626 sizeof (struct ppc_branch_hash_entry)))
3629 /* Initializing two fields of the union is just cosmetic. We really
3630 only care about glist, but when compiled on a 32-bit host the
3631 bfd_vma fields are larger. Setting the bfd_vma to zero makes
3632 debugger inspection of these fields look nicer. */
3633 htab->elf.init_got_refcount.refcount = 0;
3634 htab->elf.init_got_refcount.glist = NULL;
3635 htab->elf.init_plt_refcount.refcount = 0;
3636 htab->elf.init_plt_refcount.glist = NULL;
3637 htab->elf.init_got_offset.offset = 0;
3638 htab->elf.init_got_offset.glist = NULL;
3639 htab->elf.init_plt_offset.offset = 0;
3640 htab->elf.init_plt_offset.glist = NULL;
3642 return &htab->elf.root;
3645 /* Free the derived linker hash table. */
3648 ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
3650 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
3652 bfd_hash_table_free (&ret->stub_hash_table);
3653 bfd_hash_table_free (&ret->branch_hash_table);
3654 _bfd_generic_link_hash_table_free (hash);
3657 /* Satisfy the ELF linker by filling in some fields in our fake bfd. */
3660 ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
3662 struct ppc_link_hash_table *htab;
3664 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
3666 /* Always hook our dynamic sections into the first bfd, which is the
3667 linker created stub bfd. This ensures that the GOT header is at
3668 the start of the output TOC section. */
3669 htab = ppc_hash_table (info);
3670 htab->stub_bfd = abfd;
3671 htab->elf.dynobj = abfd;
3674 /* Build a name for an entry in the stub hash table. */
3677 ppc_stub_name (const asection *input_section,
3678 const asection *sym_sec,
3679 const struct ppc_link_hash_entry *h,
3680 const Elf_Internal_Rela *rel)
3685 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3686 offsets from a sym as a branch target? In fact, we could
3687 probably assume the addend is always zero. */
3688 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3692 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3693 stub_name = bfd_malloc (len);
3694 if (stub_name == NULL)
3697 sprintf (stub_name, "%08x.%s+%x",
3698 input_section->id & 0xffffffff,
3699 h->elf.root.root.string,
3700 (int) rel->r_addend & 0xffffffff);
3704 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
3705 stub_name = bfd_malloc (len);
3706 if (stub_name == NULL)
3709 sprintf (stub_name, "%08x.%x:%x+%x",
3710 input_section->id & 0xffffffff,
3711 sym_sec->id & 0xffffffff,
3712 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3713 (int) rel->r_addend & 0xffffffff);
3715 if (stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
3716 stub_name[len - 2] = 0;
3720 /* Look up an entry in the stub hash. Stub entries are cached because
3721 creating the stub name takes a bit of time. */
3723 static struct ppc_stub_hash_entry *
3724 ppc_get_stub_entry (const asection *input_section,
3725 const asection *sym_sec,
3726 struct ppc_link_hash_entry *h,
3727 const Elf_Internal_Rela *rel,
3728 struct ppc_link_hash_table *htab)
3730 struct ppc_stub_hash_entry *stub_entry;
3731 const asection *id_sec;
3733 /* If this input section is part of a group of sections sharing one
3734 stub section, then use the id of the first section in the group.
3735 Stub names need to include a section id, as there may well be
3736 more than one stub used to reach say, printf, and we need to
3737 distinguish between them. */
3738 id_sec = htab->stub_group[input_section->id].link_sec;
3740 if (h != NULL && h->u.stub_cache != NULL
3741 && h->u.stub_cache->h == h
3742 && h->u.stub_cache->id_sec == id_sec)
3744 stub_entry = h->u.stub_cache;
3750 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3751 if (stub_name == NULL)
3754 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
3755 stub_name, FALSE, FALSE);
3757 h->u.stub_cache = stub_entry;
3765 /* Add a new stub entry to the stub hash. Not all fields of the new
3766 stub entry are initialised. */
3768 static struct ppc_stub_hash_entry *
3769 ppc_add_stub (const char *stub_name,
3771 struct ppc_link_hash_table *htab)
3775 struct ppc_stub_hash_entry *stub_entry;
3777 link_sec = htab->stub_group[section->id].link_sec;
3778 stub_sec = htab->stub_group[section->id].stub_sec;
3779 if (stub_sec == NULL)
3781 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3782 if (stub_sec == NULL)
3788 namelen = strlen (link_sec->name);
3789 len = namelen + sizeof (STUB_SUFFIX);
3790 s_name = bfd_alloc (htab->stub_bfd, len);
3794 memcpy (s_name, link_sec->name, namelen);
3795 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
3796 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3797 if (stub_sec == NULL)
3799 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3801 htab->stub_group[section->id].stub_sec = stub_sec;
3804 /* Enter this entry into the linker stub hash table. */
3805 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
3807 if (stub_entry == NULL)
3809 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
3810 section->owner, stub_name);
3814 stub_entry->stub_sec = stub_sec;
3815 stub_entry->stub_offset = 0;
3816 stub_entry->id_sec = link_sec;
3820 /* Create sections for linker generated code. */
3823 create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
3825 struct ppc_link_hash_table *htab;
3828 htab = ppc_hash_table (info);
3830 /* Create .sfpr for code to save and restore fp regs. */
3831 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3832 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3833 htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
3835 if (htab->sfpr == NULL
3836 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
3839 /* Create .glink for lazy dynamic linking support. */
3840 htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
3842 if (htab->glink == NULL
3843 || ! bfd_set_section_alignment (dynobj, htab->glink, 3))
3846 /* Create branch lookup table for plt_branch stubs. */
3847 flags = (SEC_ALLOC | SEC_LOAD
3848 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3849 htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt",
3851 if (htab->brlt == NULL
3852 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
3858 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3859 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3860 htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj,
3864 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
3870 /* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3871 not already done. */
3874 create_got_section (bfd *abfd, struct bfd_link_info *info)
3876 asection *got, *relgot;
3878 struct ppc_link_hash_table *htab = ppc_hash_table (info);
3882 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
3885 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
3890 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3891 | SEC_LINKER_CREATED);
3893 got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
3895 || !bfd_set_section_alignment (abfd, got, 3))
3898 relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got",
3899 flags | SEC_READONLY);
3901 || ! bfd_set_section_alignment (abfd, relgot, 3))
3904 ppc64_elf_tdata (abfd)->got = got;
3905 ppc64_elf_tdata (abfd)->relgot = relgot;
3909 /* Create the dynamic sections, and set up shortcuts. */
3912 ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
3914 struct ppc_link_hash_table *htab;
3916 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
3919 htab = ppc_hash_table (info);
3921 htab->got = bfd_get_section_by_name (dynobj, ".got");
3922 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
3923 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3924 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
3926 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
3928 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
3929 || (!info->shared && !htab->relbss))
3935 /* Merge PLT info on FROM with that on TO. */
3938 move_plt_plist (struct ppc_link_hash_entry *from,
3939 struct ppc_link_hash_entry *to)
3941 if (from->elf.plt.plist != NULL)
3943 if (to->elf.plt.plist != NULL)
3945 struct plt_entry **entp;
3946 struct plt_entry *ent;
3948 for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; )
3950 struct plt_entry *dent;
3952 for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next)
3953 if (dent->addend == ent->addend)
3955 dent->plt.refcount += ent->plt.refcount;
3962 *entp = to->elf.plt.plist;
3965 to->elf.plt.plist = from->elf.plt.plist;
3966 from->elf.plt.plist = NULL;
3970 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3973 ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info,
3974 struct elf_link_hash_entry *dir,
3975 struct elf_link_hash_entry *ind)
3977 struct ppc_link_hash_entry *edir, *eind;
3979 edir = (struct ppc_link_hash_entry *) dir;
3980 eind = (struct ppc_link_hash_entry *) ind;
3982 /* Copy over any dynamic relocs we may have on the indirect sym. */
3983 if (eind->dyn_relocs != NULL)
3985 if (edir->dyn_relocs != NULL)
3987 struct ppc_dyn_relocs **pp;
3988 struct ppc_dyn_relocs *p;
3990 /* Add reloc counts against the indirect sym to the direct sym
3991 list. Merge any entries against the same section. */
3992 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3994 struct ppc_dyn_relocs *q;
3996 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3997 if (q->sec == p->sec)
3999 q->pc_count += p->pc_count;
4000 q->count += p->count;
4007 *pp = edir->dyn_relocs;
4010 edir->dyn_relocs = eind->dyn_relocs;
4011 eind->dyn_relocs = NULL;
4014 edir->is_func |= eind->is_func;
4015 edir->is_func_descriptor |= eind->is_func_descriptor;
4016 edir->tls_mask |= eind->tls_mask;
4018 /* If called to transfer flags for a weakdef during processing
4019 of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
4020 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
4021 if (!(ELIMINATE_COPY_RELOCS
4022 && eind->elf.root.type != bfd_link_hash_indirect
4023 && edir->elf.dynamic_adjusted))
4024 edir->elf.non_got_ref |= eind->elf.non_got_ref;
4026 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
4027 edir->elf.ref_regular |= eind->elf.ref_regular;
4028 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
4029 edir->elf.needs_plt |= eind->elf.needs_plt;
4031 /* If we were called to copy over info for a weak sym, that's all. */
4032 if (eind->elf.root.type != bfd_link_hash_indirect)
4035 /* Copy over got entries that we may have already seen to the
4036 symbol which just became indirect. */
4037 if (eind->elf.got.glist != NULL)
4039 if (edir->elf.got.glist != NULL)
4041 struct got_entry **entp;
4042 struct got_entry *ent;
4044 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
4046 struct got_entry *dent;
4048 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
4049 if (dent->addend == ent->addend
4050 && dent->owner == ent->owner
4051 && dent->tls_type == ent->tls_type)
4053 dent->got.refcount += ent->got.refcount;
4060 *entp = edir->elf.got.glist;
4063 edir->elf.got.glist = eind->elf.got.glist;
4064 eind->elf.got.glist = NULL;
4067 /* And plt entries. */
4068 move_plt_plist (eind, edir);
4070 if (eind->elf.dynindx != -1)
4072 if (edir->elf.dynindx != -1)
4073 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
4074 edir->elf.dynstr_index);
4075 edir->elf.dynindx = eind->elf.dynindx;
4076 edir->elf.dynstr_index = eind->elf.dynstr_index;
4077 eind->elf.dynindx = -1;
4078 eind->elf.dynstr_index = 0;
4082 /* Find the function descriptor hash entry from the given function code
4083 hash entry FH. Link the entries via their OH fields. */
4085 static struct ppc_link_hash_entry *
4086 get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
4088 struct ppc_link_hash_entry *fdh = fh->oh;
4092 const char *fd_name = fh->elf.root.root.string + 1;
4094 fdh = (struct ppc_link_hash_entry *)
4095 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
4098 fdh->is_func_descriptor = 1;
4108 /* Make a fake function descriptor sym for the code sym FH. */
4110 static struct ppc_link_hash_entry *
4111 make_fdh (struct bfd_link_info *info,
4112 struct ppc_link_hash_entry *fh)
4116 struct bfd_link_hash_entry *bh;
4117 struct ppc_link_hash_entry *fdh;
4119 abfd = fh->elf.root.u.undef.abfd;
4120 newsym = bfd_make_empty_symbol (abfd);
4121 newsym->name = fh->elf.root.root.string + 1;
4122 newsym->section = bfd_und_section_ptr;
4124 newsym->flags = BSF_WEAK;
4127 if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name,
4128 newsym->flags, newsym->section,
4129 newsym->value, NULL, FALSE, FALSE,
4133 fdh = (struct ppc_link_hash_entry *) bh;
4134 fdh->elf.non_elf = 0;
4136 fdh->is_func_descriptor = 1;
4143 /* Fix function descriptor symbols defined in .opd sections to be
4147 ppc64_elf_add_symbol_hook (bfd *ibfd ATTRIBUTE_UNUSED,
4148 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4149 Elf_Internal_Sym *isym,
4150 const char **name ATTRIBUTE_UNUSED,
4151 flagword *flags ATTRIBUTE_UNUSED,
4153 bfd_vma *value ATTRIBUTE_UNUSED)
4156 && strcmp (bfd_get_section_name (ibfd, *sec), ".opd") == 0)
4157 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
4162 /* This function makes an old ABI object reference to ".bar" cause the
4163 inclusion of a new ABI object archive that defines "bar".
4164 NAME is a symbol defined in an archive. Return a symbol in the hash
4165 table that might be satisfied by the archive symbols. */
4167 static struct elf_link_hash_entry *
4168 ppc64_elf_archive_symbol_lookup (bfd *abfd,
4169 struct bfd_link_info *info,
4172 struct elf_link_hash_entry *h;
4176 h = _bfd_elf_archive_symbol_lookup (abfd, info, name);
4178 /* Don't return this sym if it is a fake function descriptor
4179 created by add_symbol_adjust. */
4180 && !(h->root.type == bfd_link_hash_undefweak
4181 && ((struct ppc_link_hash_entry *) h)->fake))
4187 len = strlen (name);
4188 dot_name = bfd_alloc (abfd, len + 2);
4189 if (dot_name == NULL)
4190 return (struct elf_link_hash_entry *) 0 - 1;
4192 memcpy (dot_name + 1, name, len + 1);
4193 h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);
4194 bfd_release (abfd, dot_name);
4198 /* This function satisfies all old ABI object references to ".bar" if a
4199 new ABI object defines "bar". Well, at least, undefined dot symbols
4200 are made weak. This stops later archive searches from including an
4201 object if we already have a function descriptor definition. It also
4202 prevents the linker complaining about undefined symbols.
4203 We also check and correct mismatched symbol visibility here. The
4204 most restrictive visibility of the function descriptor and the
4205 function entry symbol is used. */
4208 add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info)
4210 struct ppc_link_hash_table *htab;
4211 struct ppc_link_hash_entry *fdh;
4213 if (eh->elf.root.type == bfd_link_hash_indirect)
4216 if (eh->elf.root.type == bfd_link_hash_warning)
4217 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
4219 if (eh->elf.root.root.string[0] != '.')
4222 htab = ppc_hash_table (info);
4223 fdh = get_fdh (eh, htab);
4225 && !info->relocatable
4226 && (eh->elf.root.type == bfd_link_hash_undefined
4227 || eh->elf.root.type == bfd_link_hash_undefweak)
4228 && eh->elf.ref_regular)
4230 /* Make an undefweak function descriptor sym, which is enough to
4231 pull in an --as-needed shared lib, but won't cause link
4232 errors. Archives are handled elsewhere. */
4233 fdh = make_fdh (info, eh);
4237 fdh->elf.ref_regular = 1;
4239 else if (fdh != NULL)
4241 unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1;
4242 unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1;
4243 if (entry_vis < descr_vis)
4244 fdh->elf.other += entry_vis - descr_vis;
4245 else if (entry_vis > descr_vis)
4246 eh->elf.other += descr_vis - entry_vis;
4248 if ((fdh->elf.root.type == bfd_link_hash_defined
4249 || fdh->elf.root.type == bfd_link_hash_defweak)
4250 && eh->elf.root.type == bfd_link_hash_undefined)
4252 eh->elf.root.type = bfd_link_hash_undefweak;
4253 eh->was_undefined = 1;
4254 htab->twiddled_syms = 1;
4261 /* Process list of dot-symbols we made in link_hash_newfunc. */
4264 ppc64_elf_check_directives (bfd *ibfd, struct bfd_link_info *info)
4266 struct ppc_link_hash_table *htab;
4267 struct ppc_link_hash_entry **p, *eh;
4269 htab = ppc_hash_table (info);
4270 if (!is_ppc64_elf_target (htab->elf.root.creator))
4273 if (is_ppc64_elf_target (ibfd->xvec))
4275 p = &htab->dot_syms;
4276 while ((eh = *p) != NULL)
4279 if (!add_symbol_adjust (eh, info))
4281 p = &eh->u.next_dot_sym;
4285 /* Clear the list for non-ppc64 input files. */
4286 p = &htab->dot_syms;
4287 while ((eh = *p) != NULL)
4290 p = &eh->u.next_dot_sym;
4293 /* We need to fix the undefs list for any syms we have twiddled to
4295 if (htab->twiddled_syms)
4297 bfd_link_repair_undef_list (&htab->elf.root);
4298 htab->twiddled_syms = 0;
4303 /* Undo hash table changes when an --as-needed input file is determined
4304 not to be needed. */
4307 ppc64_elf_as_needed_cleanup (bfd *ibfd ATTRIBUTE_UNUSED,
4308 struct bfd_link_info *info)
4310 ppc_hash_table (info)->dot_syms = NULL;
4315 update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
4316 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
4318 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
4319 char *local_got_tls_masks;
4321 if (local_got_ents == NULL)
4323 bfd_size_type size = symtab_hdr->sh_info;
4325 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
4326 local_got_ents = bfd_zalloc (abfd, size);
4327 if (local_got_ents == NULL)
4329 elf_local_got_ents (abfd) = local_got_ents;
4332 if ((tls_type & TLS_EXPLICIT) == 0)
4334 struct got_entry *ent;
4336 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
4337 if (ent->addend == r_addend
4338 && ent->owner == abfd
4339 && ent->tls_type == tls_type)
4343 bfd_size_type amt = sizeof (*ent);
4344 ent = bfd_alloc (abfd, amt);
4347 ent->next = local_got_ents[r_symndx];
4348 ent->addend = r_addend;
4350 ent->tls_type = tls_type;
4351 ent->got.refcount = 0;
4352 local_got_ents[r_symndx] = ent;
4354 ent->got.refcount += 1;
4357 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
4358 local_got_tls_masks[r_symndx] |= tls_type;
4363 update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
4365 struct plt_entry *ent;
4367 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
4368 if (ent->addend == addend)
4372 bfd_size_type amt = sizeof (*ent);
4373 ent = bfd_alloc (abfd, amt);
4376 ent->next = eh->elf.plt.plist;
4377 ent->addend = addend;
4378 ent->plt.refcount = 0;
4379 eh->elf.plt.plist = ent;
4381 ent->plt.refcount += 1;
4382 eh->elf.needs_plt = 1;
4383 if (eh->elf.root.root.string[0] == '.'
4384 && eh->elf.root.root.string[1] != '\0')
4389 /* Look through the relocs for a section during the first phase, and
4390 calculate needed space in the global offset table, procedure
4391 linkage table, and dynamic reloc sections. */
4394 ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
4395 asection *sec, const Elf_Internal_Rela *relocs)
4397 struct ppc_link_hash_table *htab;
4398 Elf_Internal_Shdr *symtab_hdr;
4399 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4400 const Elf_Internal_Rela *rel;
4401 const Elf_Internal_Rela *rel_end;
4403 asection **opd_sym_map;
4405 if (info->relocatable)
4408 /* Don't do anything special with non-loaded, non-alloced sections.
4409 In particular, any relocs in such sections should not affect GOT
4410 and PLT reference counting (ie. we don't allow them to create GOT
4411 or PLT entries), there's no possibility or desire to optimize TLS
4412 relocs, and there's not much point in propagating relocs to shared
4413 libs that the dynamic linker won't relocate. */
4414 if ((sec->flags & SEC_ALLOC) == 0)
4417 htab = ppc_hash_table (info);
4418 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4420 sym_hashes = elf_sym_hashes (abfd);
4421 sym_hashes_end = (sym_hashes
4422 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
4423 - symtab_hdr->sh_info);
4427 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
4429 /* Garbage collection needs some extra help with .opd sections.
4430 We don't want to necessarily keep everything referenced by
4431 relocs in .opd, as that would keep all functions. Instead,
4432 if we reference an .opd symbol (a function descriptor), we
4433 want to keep the function code symbol's section. This is
4434 easy for global symbols, but for local syms we need to keep
4435 information about the associated function section. Later, if
4436 edit_opd deletes entries, we'll use this array to adjust
4437 local syms in .opd. */
4439 asection *func_section;
4444 amt = sec->size * sizeof (union opd_info) / 8;
4445 opd_sym_map = bfd_zalloc (abfd, amt);
4446 if (opd_sym_map == NULL)
4448 ppc64_elf_section_data (sec)->u.opd_func_sec = opd_sym_map;
4449 BFD_ASSERT (ppc64_elf_section_data (sec)->sec_type == sec_normal);
4450 ppc64_elf_section_data (sec)->sec_type = sec_opd;
4453 if (htab->sfpr == NULL
4454 && !create_linkage_sections (htab->elf.dynobj, info))
4457 rel_end = relocs + sec->reloc_count;
4458 for (rel = relocs; rel < rel_end; rel++)
4460 unsigned long r_symndx;
4461 struct elf_link_hash_entry *h;
4462 enum elf_ppc64_reloc_type r_type;
4464 struct _ppc64_elf_section_data *ppc64_sec;
4466 r_symndx = ELF64_R_SYM (rel->r_info);
4467 if (r_symndx < symtab_hdr->sh_info)
4471 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4472 while (h->root.type == bfd_link_hash_indirect
4473 || h->root.type == bfd_link_hash_warning)
4474 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4477 r_type = ELF64_R_TYPE (rel->r_info);
4480 case R_PPC64_GOT_TLSLD16:
4481 case R_PPC64_GOT_TLSLD16_LO:
4482 case R_PPC64_GOT_TLSLD16_HI:
4483 case R_PPC64_GOT_TLSLD16_HA:
4484 tls_type = TLS_TLS | TLS_LD;
4487 case R_PPC64_GOT_TLSGD16:
4488 case R_PPC64_GOT_TLSGD16_LO:
4489 case R_PPC64_GOT_TLSGD16_HI:
4490 case R_PPC64_GOT_TLSGD16_HA:
4491 tls_type = TLS_TLS | TLS_GD;
4494 case R_PPC64_GOT_TPREL16_DS:
4495 case R_PPC64_GOT_TPREL16_LO_DS:
4496 case R_PPC64_GOT_TPREL16_HI:
4497 case R_PPC64_GOT_TPREL16_HA:
4499 info->flags |= DF_STATIC_TLS;
4500 tls_type = TLS_TLS | TLS_TPREL;
4503 case R_PPC64_GOT_DTPREL16_DS:
4504 case R_PPC64_GOT_DTPREL16_LO_DS:
4505 case R_PPC64_GOT_DTPREL16_HI:
4506 case R_PPC64_GOT_DTPREL16_HA:
4507 tls_type = TLS_TLS | TLS_DTPREL;
4509 sec->has_tls_reloc = 1;
4513 case R_PPC64_GOT16_DS:
4514 case R_PPC64_GOT16_HA:
4515 case R_PPC64_GOT16_HI:
4516 case R_PPC64_GOT16_LO:
4517 case R_PPC64_GOT16_LO_DS:
4518 /* This symbol requires a global offset table entry. */
4519 sec->has_toc_reloc = 1;
4520 if (ppc64_elf_tdata (abfd)->got == NULL
4521 && !create_got_section (abfd, info))
4526 struct ppc_link_hash_entry *eh;
4527 struct got_entry *ent;
4529 eh = (struct ppc_link_hash_entry *) h;
4530 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
4531 if (ent->addend == rel->r_addend
4532 && ent->owner == abfd
4533 && ent->tls_type == tls_type)
4537 bfd_size_type amt = sizeof (*ent);
4538 ent = bfd_alloc (abfd, amt);
4541 ent->next = eh->elf.got.glist;
4542 ent->addend = rel->r_addend;
4544 ent->tls_type = tls_type;
4545 ent->got.refcount = 0;
4546 eh->elf.got.glist = ent;
4548 ent->got.refcount += 1;
4549 eh->tls_mask |= tls_type;
4552 /* This is a global offset table entry for a local symbol. */
4553 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4554 rel->r_addend, tls_type))
4558 case R_PPC64_PLT16_HA:
4559 case R_PPC64_PLT16_HI:
4560 case R_PPC64_PLT16_LO:
4563 /* This symbol requires a procedure linkage table entry. We
4564 actually build the entry in adjust_dynamic_symbol,
4565 because this might be a case of linking PIC code without
4566 linking in any dynamic objects, in which case we don't
4567 need to generate a procedure linkage table after all. */
4570 /* It does not make sense to have a procedure linkage
4571 table entry for a local symbol. */
4572 bfd_set_error (bfd_error_bad_value);
4576 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
4581 /* The following relocations don't need to propagate the
4582 relocation if linking a shared object since they are
4583 section relative. */
4584 case R_PPC64_SECTOFF:
4585 case R_PPC64_SECTOFF_LO:
4586 case R_PPC64_SECTOFF_HI:
4587 case R_PPC64_SECTOFF_HA:
4588 case R_PPC64_SECTOFF_DS:
4589 case R_PPC64_SECTOFF_LO_DS:
4590 case R_PPC64_DTPREL16:
4591 case R_PPC64_DTPREL16_LO:
4592 case R_PPC64_DTPREL16_HI:
4593 case R_PPC64_DTPREL16_HA:
4594 case R_PPC64_DTPREL16_DS:
4595 case R_PPC64_DTPREL16_LO_DS:
4596 case R_PPC64_DTPREL16_HIGHER:
4597 case R_PPC64_DTPREL16_HIGHERA:
4598 case R_PPC64_DTPREL16_HIGHEST:
4599 case R_PPC64_DTPREL16_HIGHESTA:
4604 case R_PPC64_TOC16_LO:
4605 case R_PPC64_TOC16_HI:
4606 case R_PPC64_TOC16_HA:
4607 case R_PPC64_TOC16_DS:
4608 case R_PPC64_TOC16_LO_DS:
4609 sec->has_toc_reloc = 1;
4612 /* This relocation describes the C++ object vtable hierarchy.
4613 Reconstruct it for later use during GC. */
4614 case R_PPC64_GNU_VTINHERIT:
4615 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4619 /* This relocation describes which C++ vtable entries are actually
4620 used. Record for later use during GC. */
4621 case R_PPC64_GNU_VTENTRY:
4622 BFD_ASSERT (h != NULL);
4624 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4629 case R_PPC64_REL14_BRTAKEN:
4630 case R_PPC64_REL14_BRNTAKEN:
4632 asection *dest = NULL;
4634 /* Heuristic: If jumping outside our section, chances are
4635 we are going to need a stub. */
4638 /* If the sym is weak it may be overridden later, so
4639 don't assume we know where a weak sym lives. */
4640 if (h->root.type == bfd_link_hash_defined)
4641 dest = h->root.u.def.section;
4644 dest = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4647 ppc64_elf_section_data (sec)->has_14bit_branch = 1;
4654 /* We may need a .plt entry if the function this reloc
4655 refers to is in a shared lib. */
4656 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
4659 if (h == &htab->tls_get_addr->elf
4660 || h == &htab->tls_get_addr_fd->elf)
4661 sec->has_tls_reloc = 1;
4662 else if (htab->tls_get_addr == NULL
4663 && CONST_STRNEQ (h->root.root.string, ".__tls_get_addr")
4664 && (h->root.root.string[15] == 0
4665 || h->root.root.string[15] == '@'))
4667 htab->tls_get_addr = (struct ppc_link_hash_entry *) h;
4668 sec->has_tls_reloc = 1;
4670 else if (htab->tls_get_addr_fd == NULL
4671 && CONST_STRNEQ (h->root.root.string, "__tls_get_addr")
4672 && (h->root.root.string[14] == 0
4673 || h->root.root.string[14] == '@'))
4675 htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) h;
4676 sec->has_tls_reloc = 1;
4681 case R_PPC64_TPREL64:
4682 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
4684 info->flags |= DF_STATIC_TLS;
4687 case R_PPC64_DTPMOD64:
4688 if (rel + 1 < rel_end
4689 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
4690 && rel[1].r_offset == rel->r_offset + 8)
4691 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
4693 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
4696 case R_PPC64_DTPREL64:
4697 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
4699 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
4700 && rel[-1].r_offset == rel->r_offset - 8)
4701 /* This is the second reloc of a dtpmod, dtprel pair.
4702 Don't mark with TLS_DTPREL. */
4706 sec->has_tls_reloc = 1;
4709 struct ppc_link_hash_entry *eh;
4710 eh = (struct ppc_link_hash_entry *) h;
4711 eh->tls_mask |= tls_type;
4714 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4715 rel->r_addend, tls_type))
4718 ppc64_sec = ppc64_elf_section_data (sec);
4719 if (ppc64_sec->sec_type != sec_toc)
4721 /* One extra to simplify get_tls_mask. */
4722 bfd_size_type amt = sec->size * sizeof (unsigned) / 8 + 1;
4723 ppc64_sec->u.t_symndx = bfd_zalloc (abfd, amt);
4724 if (ppc64_sec->u.t_symndx == NULL)
4726 BFD_ASSERT (ppc64_sec->sec_type == sec_normal);
4727 ppc64_sec->sec_type = sec_toc;
4729 BFD_ASSERT (rel->r_offset % 8 == 0);
4730 ppc64_sec->u.t_symndx[rel->r_offset / 8] = r_symndx;
4732 /* Mark the second slot of a GD or LD entry.
4733 -1 to indicate GD and -2 to indicate LD. */
4734 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
4735 ppc64_sec->u.t_symndx[rel->r_offset / 8 + 1] = -1;
4736 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
4737 ppc64_sec->u.t_symndx[rel->r_offset / 8 + 1] = -2;
4740 case R_PPC64_TPREL16:
4741 case R_PPC64_TPREL16_LO:
4742 case R_PPC64_TPREL16_HI:
4743 case R_PPC64_TPREL16_HA:
4744 case R_PPC64_TPREL16_DS:
4745 case R_PPC64_TPREL16_LO_DS:
4746 case R_PPC64_TPREL16_HIGHER:
4747 case R_PPC64_TPREL16_HIGHERA:
4748 case R_PPC64_TPREL16_HIGHEST:
4749 case R_PPC64_TPREL16_HIGHESTA:
4752 info->flags |= DF_STATIC_TLS;
4757 case R_PPC64_ADDR64:
4758 if (opd_sym_map != NULL
4759 && rel + 1 < rel_end
4760 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
4764 if (h->root.root.string[0] == '.'
4765 && h->root.root.string[1] != 0
4766 && get_fdh ((struct ppc_link_hash_entry *) h, htab))
4769 ((struct ppc_link_hash_entry *) h)->is_func = 1;
4775 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
4780 opd_sym_map[rel->r_offset / 8] = s;
4788 case R_PPC64_ADDR14:
4789 case R_PPC64_ADDR14_BRNTAKEN:
4790 case R_PPC64_ADDR14_BRTAKEN:
4791 case R_PPC64_ADDR16:
4792 case R_PPC64_ADDR16_DS:
4793 case R_PPC64_ADDR16_HA:
4794 case R_PPC64_ADDR16_HI:
4795 case R_PPC64_ADDR16_HIGHER:
4796 case R_PPC64_ADDR16_HIGHERA:
4797 case R_PPC64_ADDR16_HIGHEST:
4798 case R_PPC64_ADDR16_HIGHESTA:
4799 case R_PPC64_ADDR16_LO:
4800 case R_PPC64_ADDR16_LO_DS:
4801 case R_PPC64_ADDR24:
4802 case R_PPC64_ADDR32:
4803 case R_PPC64_UADDR16:
4804 case R_PPC64_UADDR32:
4805 case R_PPC64_UADDR64:
4807 if (h != NULL && !info->shared)
4808 /* We may need a copy reloc. */
4811 /* Don't propagate .opd relocs. */
4812 if (NO_OPD_RELOCS && opd_sym_map != NULL)
4815 /* If we are creating a shared library, and this is a reloc
4816 against a global symbol, or a non PC relative reloc
4817 against a local symbol, then we need to copy the reloc
4818 into the shared library. However, if we are linking with
4819 -Bsymbolic, we do not need to copy a reloc against a
4820 global symbol which is defined in an object we are
4821 including in the link (i.e., DEF_REGULAR is set). At
4822 this point we have not seen all the input files, so it is
4823 possible that DEF_REGULAR is not set now but will be set
4824 later (it is never cleared). In case of a weak definition,
4825 DEF_REGULAR may be cleared later by a strong definition in
4826 a shared library. We account for that possibility below by
4827 storing information in the dyn_relocs field of the hash
4828 table entry. A similar situation occurs when creating
4829 shared libraries and symbol visibility changes render the
4832 If on the other hand, we are creating an executable, we
4833 may need to keep relocations for symbols satisfied by a
4834 dynamic library if we manage to avoid copy relocs for the
4838 && (MUST_BE_DYN_RELOC (r_type)
4840 && (! info->symbolic
4841 || h->root.type == bfd_link_hash_defweak
4842 || !h->def_regular))))
4843 || (ELIMINATE_COPY_RELOCS
4846 && (h->root.type == bfd_link_hash_defweak
4847 || !h->def_regular)))
4849 struct ppc_dyn_relocs *p;
4850 struct ppc_dyn_relocs **head;
4852 /* We must copy these reloc types into the output file.
4853 Create a reloc section in dynobj and make room for
4860 name = (bfd_elf_string_from_elf_section
4862 elf_elfheader (abfd)->e_shstrndx,
4863 elf_section_data (sec)->rel_hdr.sh_name));
4867 if (! CONST_STRNEQ (name, ".rela")
4868 || strcmp (bfd_get_section_name (abfd, sec),
4871 (*_bfd_error_handler)
4872 (_("%B: bad relocation section name `%s\'"),
4874 bfd_set_error (bfd_error_bad_value);
4877 dynobj = htab->elf.dynobj;
4878 sreloc = bfd_get_section_by_name (dynobj, name);
4883 flags = (SEC_HAS_CONTENTS | SEC_READONLY
4884 | SEC_IN_MEMORY | SEC_LINKER_CREATED
4885 | SEC_ALLOC | SEC_LOAD);
4886 sreloc = bfd_make_section_with_flags (dynobj,
4890 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
4893 elf_section_data (sec)->sreloc = sreloc;
4896 /* If this is a global symbol, we count the number of
4897 relocations we need for this symbol. */
4900 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
4904 /* Track dynamic relocs needed for local syms too.
4905 We really need local syms available to do this
4911 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4916 vpp = &elf_section_data (s)->local_dynrel;
4917 head = (struct ppc_dyn_relocs **) vpp;
4921 if (p == NULL || p->sec != sec)
4923 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4934 if (!MUST_BE_DYN_RELOC (r_type))
4947 /* OFFSET in OPD_SEC specifies a function descriptor. Return the address
4948 of the code entry point, and its section. */
4951 opd_entry_value (asection *opd_sec,
4953 asection **code_sec,
4956 bfd *opd_bfd = opd_sec->owner;
4957 Elf_Internal_Rela *relocs;
4958 Elf_Internal_Rela *lo, *hi, *look;
4961 /* No relocs implies we are linking a --just-symbols object. */
4962 if (opd_sec->reloc_count == 0)
4966 if (!bfd_get_section_contents (opd_bfd, opd_sec, &val, offset, 8))
4967 return (bfd_vma) -1;
4969 if (code_sec != NULL)
4971 asection *sec, *likely = NULL;
4972 for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
4974 && (sec->flags & SEC_LOAD) != 0
4975 && (sec->flags & SEC_ALLOC) != 0)
4980 if (code_off != NULL)
4981 *code_off = val - likely->vma;
4987 relocs = ppc64_elf_tdata (opd_bfd)->opd_relocs;
4989 relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
4991 /* Go find the opd reloc at the sym address. */
4993 BFD_ASSERT (lo != NULL);
4994 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
4998 look = lo + (hi - lo) / 2;
4999 if (look->r_offset < offset)
5001 else if (look->r_offset > offset)
5005 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (opd_bfd)->symtab_hdr;
5006 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
5007 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
5009 unsigned long symndx = ELF64_R_SYM (look->r_info);
5012 if (symndx < symtab_hdr->sh_info)
5014 Elf_Internal_Sym *sym;
5016 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
5019 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
5020 symtab_hdr->sh_info,
5021 0, NULL, NULL, NULL);
5024 symtab_hdr->contents = (bfd_byte *) sym;
5028 val = sym->st_value;
5030 if ((sym->st_shndx != SHN_UNDEF
5031 && sym->st_shndx < SHN_LORESERVE)
5032 || sym->st_shndx > SHN_HIRESERVE)
5033 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
5034 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
5038 struct elf_link_hash_entry **sym_hashes;
5039 struct elf_link_hash_entry *rh;
5041 sym_hashes = elf_sym_hashes (opd_bfd);
5042 rh = sym_hashes[symndx - symtab_hdr->sh_info];
5043 while (rh->root.type == bfd_link_hash_indirect
5044 || rh->root.type == bfd_link_hash_warning)
5045 rh = ((struct elf_link_hash_entry *) rh->root.u.i.link);
5046 BFD_ASSERT (rh->root.type == bfd_link_hash_defined
5047 || rh->root.type == bfd_link_hash_defweak);
5048 val = rh->root.u.def.value;
5049 sec = rh->root.u.def.section;
5051 val += look->r_addend;
5052 if (code_off != NULL)
5054 if (code_sec != NULL)
5056 if (sec != NULL && sec->output_section != NULL)
5057 val += sec->output_section->vma + sec->output_offset;
5066 /* Mark sections containing dynamically referenced symbols. When
5067 building shared libraries, we must assume that any visible symbol is
5071 ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf)
5073 struct bfd_link_info *info = (struct bfd_link_info *) inf;
5074 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
5076 if (eh->elf.root.type == bfd_link_hash_warning)
5077 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
5079 /* Dynamic linking info is on the func descriptor sym. */
5081 && eh->oh->is_func_descriptor
5082 && (eh->oh->elf.root.type == bfd_link_hash_defined
5083 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5086 if ((eh->elf.root.type == bfd_link_hash_defined
5087 || eh->elf.root.type == bfd_link_hash_defweak)
5088 && (eh->elf.ref_dynamic
5089 || (!info->executable
5090 && eh->elf.def_regular
5091 && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL
5092 && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN)))
5096 eh->elf.root.u.def.section->flags |= SEC_KEEP;
5098 /* Function descriptor syms cause the associated
5099 function code sym section to be marked. */
5100 if (eh->is_func_descriptor
5101 && (eh->oh->elf.root.type == bfd_link_hash_defined
5102 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5103 eh->oh->elf.root.u.def.section->flags |= SEC_KEEP;
5104 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5105 && opd_entry_value (eh->elf.root.u.def.section,
5106 eh->elf.root.u.def.value,
5107 &code_sec, NULL) != (bfd_vma) -1)
5108 code_sec->flags |= SEC_KEEP;
5114 /* Return the section that should be marked against GC for a given
5118 ppc64_elf_gc_mark_hook (asection *sec,
5119 struct bfd_link_info *info,
5120 Elf_Internal_Rela *rel,
5121 struct elf_link_hash_entry *h,
5122 Elf_Internal_Sym *sym)
5126 /* First mark all our entry sym sections. */
5127 if (info->gc_sym_list != NULL)
5129 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5130 struct bfd_sym_chain *sym = info->gc_sym_list;
5132 info->gc_sym_list = NULL;
5133 for (; sym != NULL; sym = sym->next)
5135 struct ppc_link_hash_entry *eh;
5137 eh = (struct ppc_link_hash_entry *)
5138 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
5141 if (eh->elf.root.type != bfd_link_hash_defined
5142 && eh->elf.root.type != bfd_link_hash_defweak)
5145 if (eh->is_func_descriptor
5146 && (eh->oh->elf.root.type == bfd_link_hash_defined
5147 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5148 rsec = eh->oh->elf.root.u.def.section;
5149 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5150 && opd_entry_value (eh->elf.root.u.def.section,
5151 eh->elf.root.u.def.value,
5152 &rsec, NULL) != (bfd_vma) -1)
5158 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
5160 rsec = eh->elf.root.u.def.section;
5162 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
5166 /* Syms return NULL if we're marking .opd, so we avoid marking all
5167 function sections, as all functions are referenced in .opd. */
5169 if (get_opd_info (sec) != NULL)
5174 enum elf_ppc64_reloc_type r_type;
5175 struct ppc_link_hash_entry *eh;
5177 r_type = ELF64_R_TYPE (rel->r_info);
5180 case R_PPC64_GNU_VTINHERIT:
5181 case R_PPC64_GNU_VTENTRY:
5185 switch (h->root.type)
5187 case bfd_link_hash_defined:
5188 case bfd_link_hash_defweak:
5189 eh = (struct ppc_link_hash_entry *) h;
5191 && eh->oh->is_func_descriptor
5192 && (eh->oh->elf.root.type == bfd_link_hash_defined
5193 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5196 /* Function descriptor syms cause the associated
5197 function code sym section to be marked. */
5198 if (eh->is_func_descriptor
5199 && (eh->oh->elf.root.type == bfd_link_hash_defined
5200 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5202 /* They also mark their opd section. */
5203 if (!eh->elf.root.u.def.section->gc_mark)
5204 _bfd_elf_gc_mark (info, eh->elf.root.u.def.section,
5205 ppc64_elf_gc_mark_hook);
5207 rsec = eh->oh->elf.root.u.def.section;
5209 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5210 && opd_entry_value (eh->elf.root.u.def.section,
5211 eh->elf.root.u.def.value,
5212 &rsec, NULL) != (bfd_vma) -1)
5214 if (!eh->elf.root.u.def.section->gc_mark)
5215 _bfd_elf_gc_mark (info, eh->elf.root.u.def.section,
5216 ppc64_elf_gc_mark_hook);
5219 rsec = h->root.u.def.section;
5222 case bfd_link_hash_common:
5223 rsec = h->root.u.c.p->section;
5233 asection **opd_sym_section;
5235 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
5236 opd_sym_section = get_opd_info (rsec);
5237 if (opd_sym_section != NULL)
5240 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
5242 rsec = opd_sym_section[(sym->st_value + rel->r_addend) / 8];
5249 /* Update the .got, .plt. and dynamic reloc reference counts for the
5250 section being removed. */
5253 ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
5254 asection *sec, const Elf_Internal_Rela *relocs)
5256 struct ppc_link_hash_table *htab;
5257 Elf_Internal_Shdr *symtab_hdr;
5258 struct elf_link_hash_entry **sym_hashes;
5259 struct got_entry **local_got_ents;
5260 const Elf_Internal_Rela *rel, *relend;
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;
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_adjust = get_opd_info (sym_sec);
6171 if (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 no_opd_opt,
6340 bfd_boolean non_overlapping)
6343 bfd_boolean some_edited = FALSE;
6344 asection *need_pad = NULL;
6346 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6349 Elf_Internal_Rela *relstart, *rel, *relend;
6350 Elf_Internal_Shdr *symtab_hdr;
6351 Elf_Internal_Sym *local_syms;
6352 struct elf_link_hash_entry **sym_hashes;
6356 bfd_boolean need_edit, add_aux_fields;
6357 bfd_size_type cnt_16b = 0;
6359 sec = bfd_get_section_by_name (ibfd, ".opd");
6360 if (sec == NULL || sec->size == 0)
6363 amt = sec->size * sizeof (long) / 8;
6364 opd_adjust = get_opd_info (sec);
6365 if (opd_adjust == NULL)
6367 /* check_relocs hasn't been called. Must be a ld -r link
6368 or --just-symbols object. */
6369 opd_adjust = bfd_alloc (obfd, amt);
6370 if (opd_adjust == NULL)
6372 ppc64_elf_section_data (sec)->u.opd_adjust = opd_adjust;
6373 BFD_ASSERT (ppc64_elf_section_data (sec)->sec_type == sec_normal);
6374 ppc64_elf_section_data (sec)->sec_type = sec_opd;
6376 memset (opd_adjust, 0, amt);
6381 if (sec->sec_info_type == ELF_INFO_TYPE_JUST_SYMS)
6384 if (sec->output_section == bfd_abs_section_ptr)
6387 /* Look through the section relocs. */
6388 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
6392 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
6393 sym_hashes = elf_sym_hashes (ibfd);
6395 /* Read the relocations. */
6396 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
6398 if (relstart == NULL)
6401 /* First run through the relocs to check they are sane, and to
6402 determine whether we need to edit this opd section. */
6406 relend = relstart + sec->reloc_count;
6407 for (rel = relstart; rel < relend; )
6409 enum elf_ppc64_reloc_type r_type;
6410 unsigned long r_symndx;
6412 struct elf_link_hash_entry *h;
6413 Elf_Internal_Sym *sym;
6415 /* .opd contains a regular array of 16 or 24 byte entries. We're
6416 only interested in the reloc pointing to a function entry
6418 if (rel->r_offset != offset
6419 || rel + 1 >= relend
6420 || (rel + 1)->r_offset != offset + 8)
6422 /* If someone messes with .opd alignment then after a
6423 "ld -r" we might have padding in the middle of .opd.
6424 Also, there's nothing to prevent someone putting
6425 something silly in .opd with the assembler. No .opd
6426 optimization for them! */
6428 (*_bfd_error_handler)
6429 (_("%B: .opd is not a regular array of opd entries"), ibfd);
6434 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
6435 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
6437 (*_bfd_error_handler)
6438 (_("%B: unexpected reloc type %u in .opd section"),
6444 r_symndx = ELF64_R_SYM (rel->r_info);
6445 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6449 if (sym_sec == NULL || sym_sec->owner == NULL)
6451 const char *sym_name;
6453 sym_name = h->root.root.string;
6455 sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym,
6458 (*_bfd_error_handler)
6459 (_("%B: undefined sym `%s' in .opd section"),
6465 /* opd entries are always for functions defined in the
6466 current input bfd. If the symbol isn't defined in the
6467 input bfd, then we won't be using the function in this
6468 bfd; It must be defined in a linkonce section in another
6469 bfd, or is weak. It's also possible that we are
6470 discarding the function due to a linker script /DISCARD/,
6471 which we test for via the output_section. */
6472 if (sym_sec->owner != ibfd
6473 || sym_sec->output_section == bfd_abs_section_ptr)
6478 || (rel + 1 == relend && rel->r_offset == offset + 16))
6480 if (sec->size == offset + 24)
6485 if (rel == relend && sec->size == offset + 16)
6493 if (rel->r_offset == offset + 24)
6495 else if (rel->r_offset != offset + 16)
6497 else if (rel + 1 < relend
6498 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
6499 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
6504 else if (rel + 2 < relend
6505 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64
6506 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)
6515 add_aux_fields = non_overlapping && cnt_16b > 0;
6517 if (need_edit || add_aux_fields)
6519 Elf_Internal_Rela *write_rel;
6520 bfd_byte *rptr, *wptr;
6521 bfd_byte *new_contents = NULL;
6525 /* This seems a waste of time as input .opd sections are all
6526 zeros as generated by gcc, but I suppose there's no reason
6527 this will always be so. We might start putting something in
6528 the third word of .opd entries. */
6529 if ((sec->flags & SEC_IN_MEMORY) == 0)
6532 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
6537 if (local_syms != NULL
6538 && symtab_hdr->contents != (unsigned char *) local_syms)
6540 if (elf_section_data (sec)->relocs != relstart)
6544 sec->contents = loc;
6545 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6548 elf_section_data (sec)->relocs = relstart;
6550 new_contents = sec->contents;
6553 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
6554 if (new_contents == NULL)
6558 wptr = new_contents;
6559 rptr = sec->contents;
6561 write_rel = relstart;
6565 for (rel = relstart; rel < relend; rel++)
6567 unsigned long r_symndx;
6569 struct elf_link_hash_entry *h;
6570 Elf_Internal_Sym *sym;
6572 r_symndx = ELF64_R_SYM (rel->r_info);
6573 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6577 if (rel->r_offset == offset)
6579 struct ppc_link_hash_entry *fdh = NULL;
6581 /* See if the .opd entry is full 24 byte or
6582 16 byte (with fd_aux entry overlapped with next
6585 if ((rel + 2 == relend && sec->size == offset + 16)
6586 || (rel + 3 < relend
6587 && rel[2].r_offset == offset + 16
6588 && rel[3].r_offset == offset + 24
6589 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64
6590 && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC))
6594 && h->root.root.string[0] == '.')
6596 fdh = get_fdh ((struct ppc_link_hash_entry *) h,
6597 ppc_hash_table (info));
6599 && fdh->elf.root.type != bfd_link_hash_defined
6600 && fdh->elf.root.type != bfd_link_hash_defweak)
6604 skip = (sym_sec->owner != ibfd
6605 || sym_sec->output_section == bfd_abs_section_ptr);
6608 if (fdh != NULL && sym_sec->owner == ibfd)
6610 /* Arrange for the function descriptor sym
6612 fdh->elf.root.u.def.value = 0;
6613 fdh->elf.root.u.def.section = sym_sec;
6615 opd_adjust[rel->r_offset / 8] = -1;
6619 /* We'll be keeping this opd entry. */
6623 /* Redefine the function descriptor symbol to
6624 this location in the opd section. It is
6625 necessary to update the value here rather
6626 than using an array of adjustments as we do
6627 for local symbols, because various places
6628 in the generic ELF code use the value
6629 stored in u.def.value. */
6630 fdh->elf.root.u.def.value = wptr - new_contents;
6631 fdh->adjust_done = 1;
6634 /* Local syms are a bit tricky. We could
6635 tweak them as they can be cached, but
6636 we'd need to look through the local syms
6637 for the function descriptor sym which we
6638 don't have at the moment. So keep an
6639 array of adjustments. */
6640 opd_adjust[rel->r_offset / 8]
6641 = (wptr - new_contents) - (rptr - sec->contents);
6644 memcpy (wptr, rptr, opd_ent_size);
6645 wptr += opd_ent_size;
6646 if (add_aux_fields && opd_ent_size == 16)
6648 memset (wptr, '\0', 8);
6652 rptr += opd_ent_size;
6653 offset += opd_ent_size;
6659 && !info->relocatable
6660 && !dec_dynrel_count (rel->r_info, sec, info,
6666 /* We need to adjust any reloc offsets to point to the
6667 new opd entries. While we're at it, we may as well
6668 remove redundant relocs. */
6669 rel->r_offset += opd_adjust[(offset - opd_ent_size) / 8];
6670 if (write_rel != rel)
6671 memcpy (write_rel, rel, sizeof (*rel));
6676 sec->size = wptr - new_contents;
6677 sec->reloc_count = write_rel - relstart;
6680 free (sec->contents);
6681 sec->contents = new_contents;
6684 /* Fudge the header size too, as this is used later in
6685 elf_bfd_final_link if we are emitting relocs. */
6686 elf_section_data (sec)->rel_hdr.sh_size
6687 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
6688 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
6691 else if (elf_section_data (sec)->relocs != relstart)
6694 if (local_syms != NULL
6695 && symtab_hdr->contents != (unsigned char *) local_syms)
6697 if (!info->keep_memory)
6700 symtab_hdr->contents = (unsigned char *) local_syms;
6705 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
6707 /* If we are doing a final link and the last .opd entry is just 16 byte
6708 long, add a 8 byte padding after it. */
6709 if (need_pad != NULL && !info->relocatable)
6713 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
6715 BFD_ASSERT (need_pad->size > 0);
6717 p = bfd_malloc (need_pad->size + 8);
6721 if (! bfd_get_section_contents (need_pad->owner, need_pad,
6722 p, 0, need_pad->size))
6725 need_pad->contents = p;
6726 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6730 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
6734 need_pad->contents = p;
6737 memset (need_pad->contents + need_pad->size, 0, 8);
6738 need_pad->size += 8;
6744 /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
6747 ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
6749 struct ppc_link_hash_table *htab;
6751 htab = ppc_hash_table (info);
6752 if (htab->tls_get_addr != NULL)
6754 struct ppc_link_hash_entry *h = htab->tls_get_addr;
6756 while (h->elf.root.type == bfd_link_hash_indirect
6757 || h->elf.root.type == bfd_link_hash_warning)
6758 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
6760 htab->tls_get_addr = h;
6762 if (htab->tls_get_addr_fd == NULL
6764 && h->oh->is_func_descriptor
6765 && (h->oh->elf.root.type == bfd_link_hash_defined
6766 || h->oh->elf.root.type == bfd_link_hash_defweak))
6767 htab->tls_get_addr_fd = h->oh;
6770 if (htab->tls_get_addr_fd != NULL)
6772 struct ppc_link_hash_entry *h = htab->tls_get_addr_fd;
6774 while (h->elf.root.type == bfd_link_hash_indirect
6775 || h->elf.root.type == bfd_link_hash_warning)
6776 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
6778 htab->tls_get_addr_fd = h;
6781 return _bfd_elf_tls_setup (obfd, info);
6784 /* Run through all the TLS relocs looking for optimization
6785 opportunities. The linker has been hacked (see ppc64elf.em) to do
6786 a preliminary section layout so that we know the TLS segment
6787 offsets. We can't optimize earlier because some optimizations need
6788 to know the tp offset, and we need to optimize before allocating
6789 dynamic relocations. */
6792 ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
6796 struct ppc_link_hash_table *htab;
6799 if (info->relocatable || info->shared)
6802 htab = ppc_hash_table (info);
6803 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6805 Elf_Internal_Sym *locsyms = NULL;
6806 asection *toc = bfd_get_section_by_name (ibfd, ".toc");
6807 unsigned char *toc_ref = NULL;
6809 /* Look at all the sections for this file. Make two passes over
6810 the relocs. On the first pass, mark toc entries involved
6811 with tls relocs, and check that tls relocs involved in
6812 setting up a tls_get_addr call are indeed followed by such a
6813 call. If they are not, exclude them from the optimizations
6814 done on the second pass. */
6815 for (pass = 0; pass < 2; ++pass)
6816 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
6817 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
6819 Elf_Internal_Rela *relstart, *rel, *relend;
6821 /* Read the relocations. */
6822 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
6824 if (relstart == NULL)
6827 relend = relstart + sec->reloc_count;
6828 for (rel = relstart; rel < relend; rel++)
6830 enum elf_ppc64_reloc_type r_type;
6831 unsigned long r_symndx;
6832 struct elf_link_hash_entry *h;
6833 Elf_Internal_Sym *sym;
6836 char tls_set, tls_clear, tls_type = 0;
6838 bfd_boolean ok_tprel, is_local;
6839 long toc_ref_index = 0;
6840 int expecting_tls_get_addr = 0;
6842 r_symndx = ELF64_R_SYM (rel->r_info);
6843 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
6847 if (elf_section_data (sec)->relocs != relstart)
6849 if (toc_ref != NULL)
6852 && (elf_tdata (ibfd)->symtab_hdr.contents
6853 != (unsigned char *) locsyms))
6860 if (h->root.type != bfd_link_hash_defined
6861 && h->root.type != bfd_link_hash_defweak)
6863 value = h->root.u.def.value;
6866 /* Symbols referenced by TLS relocs must be of type
6867 STT_TLS. So no need for .opd local sym adjust. */
6868 value = sym->st_value;
6876 value += sym_sec->output_offset;
6877 value += sym_sec->output_section->vma;
6878 value -= htab->elf.tls_sec->vma;
6879 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
6880 < (bfd_vma) 1 << 32);
6883 r_type = ELF64_R_TYPE (rel->r_info);
6886 case R_PPC64_GOT_TLSLD16:
6887 case R_PPC64_GOT_TLSLD16_LO:
6888 expecting_tls_get_addr = 1;
6891 case R_PPC64_GOT_TLSLD16_HI:
6892 case R_PPC64_GOT_TLSLD16_HA:
6893 /* These relocs should never be against a symbol
6894 defined in a shared lib. Leave them alone if
6895 that turns out to be the case. */
6902 tls_type = TLS_TLS | TLS_LD;
6905 case R_PPC64_GOT_TLSGD16:
6906 case R_PPC64_GOT_TLSGD16_LO:
6907 expecting_tls_get_addr = 1;
6910 case R_PPC64_GOT_TLSGD16_HI:
6911 case R_PPC64_GOT_TLSGD16_HA:
6917 tls_set = TLS_TLS | TLS_TPRELGD;
6919 tls_type = TLS_TLS | TLS_GD;
6922 case R_PPC64_GOT_TPREL16_DS:
6923 case R_PPC64_GOT_TPREL16_LO_DS:
6924 case R_PPC64_GOT_TPREL16_HI:
6925 case R_PPC64_GOT_TPREL16_HA:
6930 tls_clear = TLS_TPREL;
6931 tls_type = TLS_TLS | TLS_TPREL;
6937 case R_PPC64_TOC16_LO:
6939 if (sym_sec == NULL || sym_sec != toc)
6942 /* Mark this toc entry as referenced by a TLS
6943 code sequence. We can do that now in the
6944 case of R_PPC64_TLS, and after checking for
6945 tls_get_addr for the TOC16 relocs. */
6946 if (toc_ref == NULL)
6948 toc_ref = bfd_zmalloc (toc->size / 8);
6949 if (toc_ref == NULL)
6953 value = h->root.u.def.value;
6955 value = sym->st_value;
6956 value += rel->r_addend;
6957 BFD_ASSERT (value < toc->size && value % 8 == 0);
6958 toc_ref_index = value / 8;
6959 if (r_type == R_PPC64_TLS)
6961 toc_ref[toc_ref_index] = 1;
6965 if (pass != 0 && toc_ref[toc_ref_index] == 0)
6970 expecting_tls_get_addr = 2;
6973 case R_PPC64_TPREL64:
6977 || !toc_ref[rel->r_offset / 8])
6982 tls_set = TLS_EXPLICIT;
6983 tls_clear = TLS_TPREL;
6988 case R_PPC64_DTPMOD64:
6992 || !toc_ref[rel->r_offset / 8])
6994 if (rel + 1 < relend
6996 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
6997 && rel[1].r_offset == rel->r_offset + 8)
7001 tls_set = TLS_EXPLICIT | TLS_GD;
7004 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
7013 tls_set = TLS_EXPLICIT;
7024 if (!expecting_tls_get_addr)
7027 if (rel + 1 < relend)
7029 Elf_Internal_Shdr *symtab_hdr;
7030 enum elf_ppc64_reloc_type r_type2;
7031 unsigned long r_symndx2;
7032 struct elf_link_hash_entry *h2;
7034 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
7036 /* The next instruction should be a call to
7037 __tls_get_addr. Peek at the reloc to be sure. */
7038 r_type2 = ELF64_R_TYPE (rel[1].r_info);
7039 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
7040 if (r_symndx2 >= symtab_hdr->sh_info
7041 && (r_type2 == R_PPC64_REL14
7042 || r_type2 == R_PPC64_REL14_BRTAKEN
7043 || r_type2 == R_PPC64_REL14_BRNTAKEN
7044 || r_type2 == R_PPC64_REL24))
7046 struct elf_link_hash_entry **sym_hashes;
7048 sym_hashes = elf_sym_hashes (ibfd);
7050 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
7051 while (h2->root.type == bfd_link_hash_indirect
7052 || h2->root.type == bfd_link_hash_warning)
7053 h2 = ((struct elf_link_hash_entry *)
7056 && (h2 == &htab->tls_get_addr->elf
7057 || h2 == &htab->tls_get_addr_fd->elf))
7059 if (expecting_tls_get_addr == 2)
7061 /* Check for toc tls entries. */
7065 retval = get_tls_mask (&toc_tls, NULL,
7070 if (retval > 1 && toc_tls != NULL)
7071 toc_ref[toc_ref_index] = 1;
7078 if (expecting_tls_get_addr != 1)
7081 /* Uh oh, we didn't find the expected call. We
7082 could just mark this symbol to exclude it
7083 from tls optimization but it's safer to skip
7084 the entire section. */
7085 sec->has_tls_reloc = 0;
7089 if (expecting_tls_get_addr)
7091 struct plt_entry *ent;
7092 for (ent = htab->tls_get_addr->elf.plt.plist;
7095 if (ent->addend == 0)
7097 if (ent->plt.refcount > 0)
7099 ent->plt.refcount -= 1;
7100 expecting_tls_get_addr = 0;
7106 if (expecting_tls_get_addr)
7108 struct plt_entry *ent;
7109 for (ent = htab->tls_get_addr_fd->elf.plt.plist;
7112 if (ent->addend == 0)
7114 if (ent->plt.refcount > 0)
7115 ent->plt.refcount -= 1;
7123 if ((tls_set & TLS_EXPLICIT) == 0)
7125 struct got_entry *ent;
7127 /* Adjust got entry for this reloc. */
7131 ent = elf_local_got_ents (ibfd)[r_symndx];
7133 for (; ent != NULL; ent = ent->next)
7134 if (ent->addend == rel->r_addend
7135 && ent->owner == ibfd
7136 && ent->tls_type == tls_type)
7143 /* We managed to get rid of a got entry. */
7144 if (ent->got.refcount > 0)
7145 ent->got.refcount -= 1;
7150 /* If we got rid of a DTPMOD/DTPREL reloc pair then
7151 we'll lose one or two dyn relocs. */
7152 if (!dec_dynrel_count (rel->r_info, sec, info,
7156 if (tls_set == (TLS_EXPLICIT | TLS_GD))
7158 if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
7164 *tls_mask |= tls_set;
7165 *tls_mask &= ~tls_clear;
7168 if (elf_section_data (sec)->relocs != relstart)
7172 if (toc_ref != NULL)
7176 && (elf_tdata (ibfd)->symtab_hdr.contents
7177 != (unsigned char *) locsyms))
7179 if (!info->keep_memory)
7182 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
7188 /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
7189 the values of any global symbols in a toc section that has been
7190 edited. Globals in toc sections should be a rarity, so this function
7191 sets a flag if any are found in toc sections other than the one just
7192 edited, so that futher hash table traversals can be avoided. */
7194 struct adjust_toc_info
7197 unsigned long *skip;
7198 bfd_boolean global_toc_syms;
7202 adjust_toc_syms (struct elf_link_hash_entry *h, void *inf)
7204 struct ppc_link_hash_entry *eh;
7205 struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf;
7207 if (h->root.type == bfd_link_hash_indirect)
7210 if (h->root.type == bfd_link_hash_warning)
7211 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7213 if (h->root.type != bfd_link_hash_defined
7214 && h->root.type != bfd_link_hash_defweak)
7217 eh = (struct ppc_link_hash_entry *) h;
7218 if (eh->adjust_done)
7221 if (eh->elf.root.u.def.section == toc_inf->toc)
7223 unsigned long skip = toc_inf->skip[eh->elf.root.u.def.value >> 3];
7224 if (skip != (unsigned long) -1)
7225 eh->elf.root.u.def.value -= skip;
7228 (*_bfd_error_handler)
7229 (_("%s defined in removed toc entry"), eh->elf.root.root.string);
7230 eh->elf.root.u.def.section = &bfd_abs_section;
7231 eh->elf.root.u.def.value = 0;
7233 eh->adjust_done = 1;
7235 else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0)
7236 toc_inf->global_toc_syms = TRUE;
7241 /* Examine all relocs referencing .toc sections in order to remove
7242 unused .toc entries. */
7245 ppc64_elf_edit_toc (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
7248 struct adjust_toc_info toc_inf;
7250 toc_inf.global_toc_syms = TRUE;
7251 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7253 asection *toc, *sec;
7254 Elf_Internal_Shdr *symtab_hdr;
7255 Elf_Internal_Sym *local_syms;
7256 struct elf_link_hash_entry **sym_hashes;
7257 Elf_Internal_Rela *relstart, *rel;
7258 unsigned long *skip, *drop;
7259 unsigned char *used;
7260 unsigned char *keep, last, some_unused;
7262 toc = bfd_get_section_by_name (ibfd, ".toc");
7265 || toc->sec_info_type == ELF_INFO_TYPE_JUST_SYMS
7266 || elf_discarded_section (toc))
7270 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
7271 sym_hashes = elf_sym_hashes (ibfd);
7273 /* Look at sections dropped from the final link. */
7276 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7278 if (sec->reloc_count == 0
7279 || !elf_discarded_section (sec)
7280 || get_opd_info (sec)
7281 || (sec->flags & SEC_ALLOC) == 0
7282 || (sec->flags & SEC_DEBUGGING) != 0)
7285 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE);
7286 if (relstart == NULL)
7289 /* Run through the relocs to see which toc entries might be
7291 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7293 enum elf_ppc64_reloc_type r_type;
7294 unsigned long r_symndx;
7296 struct elf_link_hash_entry *h;
7297 Elf_Internal_Sym *sym;
7300 r_type = ELF64_R_TYPE (rel->r_info);
7307 case R_PPC64_TOC16_LO:
7308 case R_PPC64_TOC16_HI:
7309 case R_PPC64_TOC16_HA:
7310 case R_PPC64_TOC16_DS:
7311 case R_PPC64_TOC16_LO_DS:
7315 r_symndx = ELF64_R_SYM (rel->r_info);
7316 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7324 val = h->root.u.def.value;
7326 val = sym->st_value;
7327 val += rel->r_addend;
7329 if (val >= toc->size)
7332 /* Anything in the toc ought to be aligned to 8 bytes.
7333 If not, don't mark as unused. */
7339 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 7) / 8);
7347 if (elf_section_data (sec)->relocs != relstart)
7354 used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8);
7358 if (local_syms != NULL
7359 && symtab_hdr->contents != (unsigned char *) local_syms)
7363 && elf_section_data (sec)->relocs != relstart)
7370 /* Now check all kept sections that might reference the toc.
7371 Check the toc itself last. */
7372 for (sec = (ibfd->sections == toc && toc->next ? toc->next
7375 sec = (sec == toc ? NULL
7376 : sec->next == NULL ? toc
7377 : sec->next == toc && toc->next ? toc->next
7382 if (sec->reloc_count == 0
7383 || elf_discarded_section (sec)
7384 || get_opd_info (sec)
7385 || (sec->flags & SEC_ALLOC) == 0
7386 || (sec->flags & SEC_DEBUGGING) != 0)
7389 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, TRUE);
7390 if (relstart == NULL)
7393 /* Mark toc entries referenced as used. */
7396 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7398 enum elf_ppc64_reloc_type r_type;
7399 unsigned long r_symndx;
7401 struct elf_link_hash_entry *h;
7402 Elf_Internal_Sym *sym;
7405 r_type = ELF64_R_TYPE (rel->r_info);
7409 case R_PPC64_TOC16_LO:
7410 case R_PPC64_TOC16_HI:
7411 case R_PPC64_TOC16_HA:
7412 case R_PPC64_TOC16_DS:
7413 case R_PPC64_TOC16_LO_DS:
7414 /* In case we're taking addresses of toc entries. */
7415 case R_PPC64_ADDR64:
7422 r_symndx = ELF64_R_SYM (rel->r_info);
7423 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7434 val = h->root.u.def.value;
7436 val = sym->st_value;
7437 val += rel->r_addend;
7439 if (val >= toc->size)
7442 /* For the toc section, we only mark as used if
7443 this entry itself isn't unused. */
7446 && (used[rel->r_offset >> 3]
7447 || !skip[rel->r_offset >> 3]))
7448 /* Do all the relocs again, to catch reference
7457 /* Merge the used and skip arrays. Assume that TOC
7458 doublewords not appearing as either used or unused belong
7459 to to an entry more than one doubleword in size. */
7460 for (drop = skip, keep = used, last = 0, some_unused = 0;
7461 drop < skip + (toc->size + 7) / 8;
7482 bfd_byte *contents, *src;
7485 /* Shuffle the toc contents, and at the same time convert the
7486 skip array from booleans into offsets. */
7487 if (!bfd_malloc_and_get_section (ibfd, toc, &contents))
7490 elf_section_data (toc)->this_hdr.contents = contents;
7492 for (src = contents, off = 0, drop = skip;
7493 src < contents + toc->size;
7498 *drop = (unsigned long) -1;
7504 memcpy (src - off, src, 8);
7507 toc->rawsize = toc->size;
7508 toc->size = src - contents - off;
7510 if (toc->reloc_count != 0)
7512 Elf_Internal_Rela *wrel;
7515 /* Read toc relocs. */
7516 relstart = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
7518 if (relstart == NULL)
7521 /* Remove unused toc relocs, and adjust those we keep. */
7523 for (rel = relstart; rel < relstart + toc->reloc_count; ++rel)
7524 if (skip[rel->r_offset >> 3] != (unsigned long) -1)
7526 wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3];
7527 wrel->r_info = rel->r_info;
7528 wrel->r_addend = rel->r_addend;
7531 else if (!dec_dynrel_count (rel->r_info, toc, info,
7532 &local_syms, NULL, NULL))
7535 toc->reloc_count = wrel - relstart;
7536 sz = elf_section_data (toc)->rel_hdr.sh_entsize;
7537 elf_section_data (toc)->rel_hdr.sh_size = toc->reloc_count * sz;
7538 BFD_ASSERT (elf_section_data (toc)->rel_hdr2 == NULL);
7541 /* Adjust addends for relocs against the toc section sym. */
7542 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7544 if (sec->reloc_count == 0
7545 || elf_discarded_section (sec))
7548 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
7550 if (relstart == NULL)
7553 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7555 enum elf_ppc64_reloc_type r_type;
7556 unsigned long r_symndx;
7558 struct elf_link_hash_entry *h;
7559 Elf_Internal_Sym *sym;
7561 r_type = ELF64_R_TYPE (rel->r_info);
7568 case R_PPC64_TOC16_LO:
7569 case R_PPC64_TOC16_HI:
7570 case R_PPC64_TOC16_HA:
7571 case R_PPC64_TOC16_DS:
7572 case R_PPC64_TOC16_LO_DS:
7573 case R_PPC64_ADDR64:
7577 r_symndx = ELF64_R_SYM (rel->r_info);
7578 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7582 if (sym_sec != toc || h != NULL || sym->st_value != 0)
7585 rel->r_addend -= skip[rel->r_addend >> 3];
7589 /* We shouldn't have local or global symbols defined in the TOC,
7590 but handle them anyway. */
7591 if (local_syms != NULL)
7593 Elf_Internal_Sym *sym;
7595 for (sym = local_syms;
7596 sym < local_syms + symtab_hdr->sh_info;
7598 if (sym->st_shndx != SHN_UNDEF
7599 && (sym->st_shndx < SHN_LORESERVE
7600 || sym->st_shndx > SHN_HIRESERVE)
7601 && sym->st_value != 0
7602 && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc)
7604 if (skip[sym->st_value >> 3] != (unsigned long) -1)
7605 sym->st_value -= skip[sym->st_value >> 3];
7608 (*_bfd_error_handler)
7609 (_("%s defined in removed toc entry"),
7610 bfd_elf_sym_name (ibfd, symtab_hdr, sym,
7613 sym->st_shndx = SHN_ABS;
7615 symtab_hdr->contents = (unsigned char *) local_syms;
7619 /* Finally, adjust any global syms defined in the toc. */
7620 if (toc_inf.global_toc_syms)
7623 toc_inf.skip = skip;
7624 toc_inf.global_toc_syms = FALSE;
7625 elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms,
7630 if (local_syms != NULL
7631 && symtab_hdr->contents != (unsigned char *) local_syms)
7633 if (!info->keep_memory)
7636 symtab_hdr->contents = (unsigned char *) local_syms;
7644 /* Allocate space in .plt, .got and associated reloc sections for
7648 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
7650 struct bfd_link_info *info;
7651 struct ppc_link_hash_table *htab;
7653 struct ppc_link_hash_entry *eh;
7654 struct ppc_dyn_relocs *p;
7655 struct got_entry *gent;
7657 if (h->root.type == bfd_link_hash_indirect)
7660 if (h->root.type == bfd_link_hash_warning)
7661 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7663 info = (struct bfd_link_info *) inf;
7664 htab = ppc_hash_table (info);
7666 if (htab->elf.dynamic_sections_created
7668 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
7670 struct plt_entry *pent;
7671 bfd_boolean doneone = FALSE;
7672 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
7673 if (pent->plt.refcount > 0)
7675 /* If this is the first .plt entry, make room for the special
7679 s->size += PLT_INITIAL_ENTRY_SIZE;
7681 pent->plt.offset = s->size;
7683 /* Make room for this entry. */
7684 s->size += PLT_ENTRY_SIZE;
7686 /* Make room for the .glink code. */
7689 s->size += GLINK_CALL_STUB_SIZE;
7690 /* We need bigger stubs past index 32767. */
7691 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
7695 /* We also need to make an entry in the .rela.plt section. */
7697 s->size += sizeof (Elf64_External_Rela);
7701 pent->plt.offset = (bfd_vma) -1;
7704 h->plt.plist = NULL;
7710 h->plt.plist = NULL;
7714 eh = (struct ppc_link_hash_entry *) h;
7715 /* Run through the TLS GD got entries first if we're changing them
7717 if ((eh->tls_mask & TLS_TPRELGD) != 0)
7718 for (gent = h->got.glist; gent != NULL; gent = gent->next)
7719 if (gent->got.refcount > 0
7720 && (gent->tls_type & TLS_GD) != 0)
7722 /* This was a GD entry that has been converted to TPREL. If
7723 there happens to be a TPREL entry we can use that one. */
7724 struct got_entry *ent;
7725 for (ent = h->got.glist; ent != NULL; ent = ent->next)
7726 if (ent->got.refcount > 0
7727 && (ent->tls_type & TLS_TPREL) != 0
7728 && ent->addend == gent->addend
7729 && ent->owner == gent->owner)
7731 gent->got.refcount = 0;
7735 /* If not, then we'll be using our own TPREL entry. */
7736 if (gent->got.refcount != 0)
7737 gent->tls_type = TLS_TLS | TLS_TPREL;
7740 for (gent = h->got.glist; gent != NULL; gent = gent->next)
7741 if (gent->got.refcount > 0)
7745 /* Make sure this symbol is output as a dynamic symbol.
7746 Undefined weak syms won't yet be marked as dynamic,
7747 nor will all TLS symbols. */
7748 if (h->dynindx == -1
7749 && !h->forced_local)
7751 if (! bfd_elf_link_record_dynamic_symbol (info, h))
7755 if ((gent->tls_type & TLS_LD) != 0
7758 ppc64_tlsld_got (gent->owner)->refcount += 1;
7759 gent->got.offset = (bfd_vma) -1;
7763 s = ppc64_elf_tdata (gent->owner)->got;
7764 gent->got.offset = s->size;
7766 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
7767 dyn = htab->elf.dynamic_sections_created;
7769 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
7770 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7771 || h->root.type != bfd_link_hash_undefweak))
7772 ppc64_elf_tdata (gent->owner)->relgot->size
7773 += (gent->tls_type & eh->tls_mask & TLS_GD
7774 ? 2 * sizeof (Elf64_External_Rela)
7775 : sizeof (Elf64_External_Rela));
7778 gent->got.offset = (bfd_vma) -1;
7780 if (eh->dyn_relocs == NULL)
7783 /* In the shared -Bsymbolic case, discard space allocated for
7784 dynamic pc-relative relocs against symbols which turn out to be
7785 defined in regular objects. For the normal shared case, discard
7786 space for relocs that have become local due to symbol visibility
7791 /* Relocs that use pc_count are those that appear on a call insn,
7792 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
7793 generated via assembly. We want calls to protected symbols to
7794 resolve directly to the function rather than going via the plt.
7795 If people want function pointer comparisons to work as expected
7796 then they should avoid writing weird assembly. */
7797 if (SYMBOL_CALLS_LOCAL (info, h))
7799 struct ppc_dyn_relocs **pp;
7801 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
7803 p->count -= p->pc_count;
7812 /* Also discard relocs on undefined weak syms with non-default
7814 if (eh->dyn_relocs != NULL
7815 && h->root.type == bfd_link_hash_undefweak)
7817 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
7818 eh->dyn_relocs = NULL;
7820 /* Make sure this symbol is output as a dynamic symbol.
7821 Undefined weak syms won't yet be marked as dynamic. */
7822 else if (h->dynindx == -1
7823 && !h->forced_local)
7825 if (! bfd_elf_link_record_dynamic_symbol (info, h))
7830 else if (ELIMINATE_COPY_RELOCS)
7832 /* For the non-shared case, discard space for relocs against
7833 symbols which turn out to need copy relocs or are not
7840 /* Make sure this symbol is output as a dynamic symbol.
7841 Undefined weak syms won't yet be marked as dynamic. */
7842 if (h->dynindx == -1
7843 && !h->forced_local)
7845 if (! bfd_elf_link_record_dynamic_symbol (info, h))
7849 /* If that succeeded, we know we'll be keeping all the
7851 if (h->dynindx != -1)
7855 eh->dyn_relocs = NULL;
7860 /* Finally, allocate space. */
7861 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7863 asection *sreloc = elf_section_data (p->sec)->sreloc;
7864 sreloc->size += p->count * sizeof (Elf64_External_Rela);
7870 /* Find any dynamic relocs that apply to read-only sections. */
7873 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
7875 struct ppc_link_hash_entry *eh;
7876 struct ppc_dyn_relocs *p;
7878 if (h->root.type == bfd_link_hash_warning)
7879 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7881 eh = (struct ppc_link_hash_entry *) h;
7882 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7884 asection *s = p->sec->output_section;
7886 if (s != NULL && (s->flags & SEC_READONLY) != 0)
7888 struct bfd_link_info *info = inf;
7890 info->flags |= DF_TEXTREL;
7892 /* Not an error, just cut short the traversal. */
7899 /* Set the sizes of the dynamic sections. */
7902 ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
7903 struct bfd_link_info *info)
7905 struct ppc_link_hash_table *htab;
7911 htab = ppc_hash_table (info);
7912 dynobj = htab->elf.dynobj;
7916 if (htab->elf.dynamic_sections_created)
7918 /* Set the contents of the .interp section to the interpreter. */
7919 if (info->executable)
7921 s = bfd_get_section_by_name (dynobj, ".interp");
7924 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
7925 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
7929 /* Set up .got offsets for local syms, and space for local dynamic
7931 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7933 struct got_entry **lgot_ents;
7934 struct got_entry **end_lgot_ents;
7936 bfd_size_type locsymcount;
7937 Elf_Internal_Shdr *symtab_hdr;
7940 if (!is_ppc64_elf_target (ibfd->xvec))
7943 for (s = ibfd->sections; s != NULL; s = s->next)
7945 struct ppc_dyn_relocs *p;
7947 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
7949 if (!bfd_is_abs_section (p->sec)
7950 && bfd_is_abs_section (p->sec->output_section))
7952 /* Input section has been discarded, either because
7953 it is a copy of a linkonce section or due to
7954 linker script /DISCARD/, so we'll be discarding
7957 else if (p->count != 0)
7959 srel = elf_section_data (p->sec)->sreloc;
7960 srel->size += p->count * sizeof (Elf64_External_Rela);
7961 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
7962 info->flags |= DF_TEXTREL;
7967 lgot_ents = elf_local_got_ents (ibfd);
7971 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
7972 locsymcount = symtab_hdr->sh_info;
7973 end_lgot_ents = lgot_ents + locsymcount;
7974 lgot_masks = (char *) end_lgot_ents;
7975 s = ppc64_elf_tdata (ibfd)->got;
7976 srel = ppc64_elf_tdata (ibfd)->relgot;
7977 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
7979 struct got_entry *ent;
7981 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
7982 if (ent->got.refcount > 0)
7984 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
7986 ppc64_tlsld_got (ibfd)->refcount += 1;
7987 ent->got.offset = (bfd_vma) -1;
7991 ent->got.offset = s->size;
7992 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
7996 srel->size += 2 * sizeof (Elf64_External_Rela);
8002 srel->size += sizeof (Elf64_External_Rela);
8007 ent->got.offset = (bfd_vma) -1;
8011 /* Allocate global sym .plt and .got entries, and space for global
8012 sym dynamic relocs. */
8013 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
8015 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
8017 if (!is_ppc64_elf_target (ibfd->xvec))
8020 if (ppc64_tlsld_got (ibfd)->refcount > 0)
8022 s = ppc64_elf_tdata (ibfd)->got;
8023 ppc64_tlsld_got (ibfd)->offset = s->size;
8027 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
8028 srel->size += sizeof (Elf64_External_Rela);
8032 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
8035 /* We now have determined the sizes of the various dynamic sections.
8036 Allocate memory for them. */
8038 for (s = dynobj->sections; s != NULL; s = s->next)
8040 if ((s->flags & SEC_LINKER_CREATED) == 0)
8043 if (s == htab->brlt || s == htab->relbrlt)
8044 /* These haven't been allocated yet; don't strip. */
8046 else if (s == htab->got
8049 || s == htab->dynbss)
8051 /* Strip this section if we don't need it; see the
8054 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
8058 if (s != htab->relplt)
8061 /* We use the reloc_count field as a counter if we need
8062 to copy relocs into the output file. */
8068 /* It's not one of our sections, so don't allocate space. */
8074 /* If we don't need this section, strip it from the
8075 output file. This is mostly to handle .rela.bss and
8076 .rela.plt. We must create both sections in
8077 create_dynamic_sections, because they must be created
8078 before the linker maps input sections to output
8079 sections. The linker does that before
8080 adjust_dynamic_symbol is called, and it is that
8081 function which decides whether anything needs to go
8082 into these sections. */
8083 s->flags |= SEC_EXCLUDE;
8087 if ((s->flags & SEC_HAS_CONTENTS) == 0)
8090 /* Allocate memory for the section contents. We use bfd_zalloc
8091 here in case unused entries are not reclaimed before the
8092 section's contents are written out. This should not happen,
8093 but this way if it does we get a R_PPC64_NONE reloc in .rela
8094 sections instead of garbage.
8095 We also rely on the section contents being zero when writing
8097 s->contents = bfd_zalloc (dynobj, s->size);
8098 if (s->contents == NULL)
8102 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
8104 if (!is_ppc64_elf_target (ibfd->xvec))
8107 s = ppc64_elf_tdata (ibfd)->got;
8108 if (s != NULL && s != htab->got)
8111 s->flags |= SEC_EXCLUDE;
8114 s->contents = bfd_zalloc (ibfd, s->size);
8115 if (s->contents == NULL)
8119 s = ppc64_elf_tdata (ibfd)->relgot;
8123 s->flags |= SEC_EXCLUDE;
8126 s->contents = bfd_zalloc (ibfd, s->size);
8127 if (s->contents == NULL)
8135 if (htab->elf.dynamic_sections_created)
8137 /* Add some entries to the .dynamic section. We fill in the
8138 values later, in ppc64_elf_finish_dynamic_sections, but we
8139 must add the entries now so that we get the correct size for
8140 the .dynamic section. The DT_DEBUG entry is filled in by the
8141 dynamic linker and used by the debugger. */
8142 #define add_dynamic_entry(TAG, VAL) \
8143 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
8145 if (info->executable)
8147 if (!add_dynamic_entry (DT_DEBUG, 0))
8151 if (htab->plt != NULL && htab->plt->size != 0)
8153 if (!add_dynamic_entry (DT_PLTGOT, 0)
8154 || !add_dynamic_entry (DT_PLTRELSZ, 0)
8155 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
8156 || !add_dynamic_entry (DT_JMPREL, 0)
8157 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
8163 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
8164 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
8170 if (!add_dynamic_entry (DT_RELA, 0)
8171 || !add_dynamic_entry (DT_RELASZ, 0)
8172 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
8175 /* If any dynamic relocs apply to a read-only section,
8176 then we need a DT_TEXTREL entry. */
8177 if ((info->flags & DF_TEXTREL) == 0)
8178 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
8180 if ((info->flags & DF_TEXTREL) != 0)
8182 if (!add_dynamic_entry (DT_TEXTREL, 0))
8187 #undef add_dynamic_entry
8192 /* Determine the type of stub needed, if any, for a call. */
8194 static inline enum ppc_stub_type
8195 ppc_type_of_stub (asection *input_sec,
8196 const Elf_Internal_Rela *rel,
8197 struct ppc_link_hash_entry **hash,
8198 bfd_vma destination)
8200 struct ppc_link_hash_entry *h = *hash;
8202 bfd_vma branch_offset;
8203 bfd_vma max_branch_offset;
8204 enum elf_ppc64_reloc_type r_type;
8208 struct ppc_link_hash_entry *fdh = h;
8210 && fdh->oh->is_func_descriptor)
8213 if (fdh->elf.dynindx != -1)
8215 struct plt_entry *ent;
8217 for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
8218 if (ent->addend == rel->r_addend
8219 && ent->plt.offset != (bfd_vma) -1)
8222 return ppc_stub_plt_call;
8226 /* Here, we know we don't have a plt entry. If we don't have a
8227 either a defined function descriptor or a defined entry symbol
8228 in a regular object file, then it is pointless trying to make
8229 any other type of stub. */
8230 if (!((fdh->elf.root.type == bfd_link_hash_defined
8231 || fdh->elf.root.type == bfd_link_hash_defweak)
8232 && fdh->elf.root.u.def.section->output_section != NULL)
8233 && !((h->elf.root.type == bfd_link_hash_defined
8234 || h->elf.root.type == bfd_link_hash_defweak)
8235 && h->elf.root.u.def.section->output_section != NULL))
8236 return ppc_stub_none;
8239 /* Determine where the call point is. */
8240 location = (input_sec->output_offset
8241 + input_sec->output_section->vma
8244 branch_offset = destination - location;
8245 r_type = ELF64_R_TYPE (rel->r_info);
8247 /* Determine if a long branch stub is needed. */
8248 max_branch_offset = 1 << 25;
8249 if (r_type != R_PPC64_REL24)
8250 max_branch_offset = 1 << 15;
8252 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
8253 /* We need a stub. Figure out whether a long_branch or plt_branch
8255 return ppc_stub_long_branch;
8257 return ppc_stub_none;
8260 /* Build a .plt call stub. */
8262 static inline bfd_byte *
8263 build_plt_stub (bfd *obfd, bfd_byte *p, int offset)
8265 #define PPC_LO(v) ((v) & 0xffff)
8266 #define PPC_HI(v) (((v) >> 16) & 0xffff)
8267 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
8269 if (PPC_HA (offset) != 0)
8271 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
8272 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
8273 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
8274 if (PPC_HA (offset + 16) != PPC_HA (offset))
8276 bfd_put_32 (obfd, ADDI_R12_R12 | PPC_LO (offset), p), p += 4;
8279 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
8280 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset + 8), p), p += 4;
8281 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset + 16), p), p += 4;
8282 bfd_put_32 (obfd, BCTR, p), p += 4;
8286 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
8287 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset), p), p += 4;
8288 if (PPC_HA (offset + 16) != PPC_HA (offset))
8290 bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4;
8293 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
8294 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
8295 bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4;
8296 bfd_put_32 (obfd, BCTR, p), p += 4;
8302 ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
8304 struct ppc_stub_hash_entry *stub_entry;
8305 struct ppc_branch_hash_entry *br_entry;
8306 struct bfd_link_info *info;
8307 struct ppc_link_hash_table *htab;
8311 struct plt_entry *ent;
8315 /* Massage our args to the form they really have. */
8316 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
8319 htab = ppc_hash_table (info);
8321 /* Make a note of the offset within the stubs for this entry. */
8322 stub_entry->stub_offset = stub_entry->stub_sec->size;
8323 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
8325 htab->stub_count[stub_entry->stub_type - 1] += 1;
8326 switch (stub_entry->stub_type)
8328 case ppc_stub_long_branch:
8329 case ppc_stub_long_branch_r2off:
8330 /* Branches are relative. This is where we are going to. */
8331 off = dest = (stub_entry->target_value
8332 + stub_entry->target_section->output_offset
8333 + stub_entry->target_section->output_section->vma);
8335 /* And this is where we are coming from. */
8336 off -= (stub_entry->stub_offset
8337 + stub_entry->stub_sec->output_offset
8338 + stub_entry->stub_sec->output_section->vma);
8341 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
8345 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8346 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8347 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
8350 if (PPC_HA (r2off) != 0)
8353 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
8356 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
8360 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
8362 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
8364 (*_bfd_error_handler) (_("long branch stub `%s' offset overflow"),
8365 stub_entry->root.string);
8366 htab->stub_error = TRUE;
8370 if (info->emitrelocations)
8372 Elf_Internal_Rela *relocs, *r;
8373 struct bfd_elf_section_data *elfsec_data;
8375 elfsec_data = elf_section_data (stub_entry->stub_sec);
8376 relocs = elfsec_data->relocs;
8379 bfd_size_type relsize;
8380 relsize = stub_entry->stub_sec->reloc_count * sizeof (*relocs);
8381 relocs = bfd_alloc (htab->stub_bfd, relsize);
8384 elfsec_data->relocs = relocs;
8385 elfsec_data->rel_hdr.sh_size = (stub_entry->stub_sec->reloc_count
8386 * sizeof (Elf64_External_Rela));
8387 elfsec_data->rel_hdr.sh_entsize = sizeof (Elf64_External_Rela);
8388 stub_entry->stub_sec->reloc_count = 0;
8390 r = relocs + stub_entry->stub_sec->reloc_count;
8391 stub_entry->stub_sec->reloc_count += 1;
8392 r->r_offset = loc - stub_entry->stub_sec->contents;
8393 r->r_info = ELF64_R_INFO (0, R_PPC64_REL24);
8395 if (stub_entry->h != NULL)
8397 struct elf_link_hash_entry **hashes;
8398 unsigned long symndx;
8399 struct ppc_link_hash_entry *h;
8401 hashes = elf_sym_hashes (htab->stub_bfd);
8404 bfd_size_type hsize;
8406 hsize = (htab->stub_globals + 1) * sizeof (*hashes);
8407 hashes = bfd_zalloc (htab->stub_bfd, hsize);
8410 elf_sym_hashes (htab->stub_bfd) = hashes;
8411 htab->stub_globals = 1;
8413 symndx = htab->stub_globals++;
8415 hashes[symndx] = &h->elf;
8416 r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24);
8417 if (h->oh != NULL && h->oh->is_func)
8419 if (h->elf.root.u.def.section != stub_entry->target_section)
8420 /* H is an opd symbol. The addend must be zero. */
8424 off = (h->elf.root.u.def.value
8425 + h->elf.root.u.def.section->output_offset
8426 + h->elf.root.u.def.section->output_section->vma);
8433 case ppc_stub_plt_branch:
8434 case ppc_stub_plt_branch_r2off:
8435 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
8436 stub_entry->root.string + 9,
8438 if (br_entry == NULL)
8440 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
8441 stub_entry->root.string);
8442 htab->stub_error = TRUE;
8446 off = (stub_entry->target_value
8447 + stub_entry->target_section->output_offset
8448 + stub_entry->target_section->output_section->vma);
8450 bfd_put_64 (htab->brlt->owner, off,
8451 htab->brlt->contents + br_entry->offset);
8453 if (br_entry->iter == htab->stub_iteration)
8457 if (htab->relbrlt != NULL)
8459 /* Create a reloc for the branch lookup table entry. */
8460 Elf_Internal_Rela rela;
8463 rela.r_offset = (br_entry->offset
8464 + htab->brlt->output_offset
8465 + htab->brlt->output_section->vma);
8466 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
8467 rela.r_addend = off;
8469 rl = htab->relbrlt->contents;
8470 rl += (htab->relbrlt->reloc_count++
8471 * sizeof (Elf64_External_Rela));
8472 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
8474 else if (info->emitrelocations)
8476 Elf_Internal_Rela *relocs, *r;
8477 struct bfd_elf_section_data *elfsec_data;
8479 elfsec_data = elf_section_data (htab->brlt);
8480 relocs = elfsec_data->relocs;
8483 bfd_size_type relsize;
8484 relsize = htab->brlt->reloc_count * sizeof (*relocs);
8485 relocs = bfd_alloc (htab->brlt->owner, relsize);
8488 elfsec_data->relocs = relocs;
8489 elfsec_data->rel_hdr.sh_size
8490 = (stub_entry->stub_sec->reloc_count
8491 * sizeof (Elf64_External_Rela));
8492 elfsec_data->rel_hdr.sh_entsize
8493 = sizeof (Elf64_External_Rela);
8494 htab->brlt->reloc_count = 0;
8496 r = relocs + htab->brlt->reloc_count;
8497 htab->brlt->reloc_count += 1;
8498 r->r_offset = (br_entry->offset
8499 + htab->brlt->output_offset
8500 + htab->brlt->output_section->vma);
8501 r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
8506 off = (br_entry->offset
8507 + htab->brlt->output_offset
8508 + htab->brlt->output_section->vma
8509 - elf_gp (htab->brlt->output_section->owner)
8510 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8512 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
8514 (*_bfd_error_handler)
8515 (_("linkage table error against `%s'"),
8516 stub_entry->root.string);
8517 bfd_set_error (bfd_error_bad_value);
8518 htab->stub_error = TRUE;
8523 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
8525 if (PPC_HA (indx) != 0)
8528 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
8530 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
8535 bfd_put_32 (htab->stub_bfd, LD_R11_0R2 | PPC_LO (indx), loc);
8542 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8543 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8544 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
8547 if (PPC_HA (indx) != 0)
8550 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
8552 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
8557 bfd_put_32 (htab->stub_bfd, LD_R11_0R2 | PPC_LO (indx), loc);
8561 if (PPC_HA (r2off) != 0)
8564 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
8567 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
8570 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
8572 bfd_put_32 (htab->stub_bfd, BCTR, loc);
8575 case ppc_stub_plt_call:
8576 /* Do the best we can for shared libraries built without
8577 exporting ".foo" for each "foo". This can happen when symbol
8578 versioning scripts strip all bar a subset of symbols. */
8579 if (stub_entry->h->oh != NULL
8580 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defined
8581 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defweak)
8583 /* Point the symbol at the stub. There may be multiple stubs,
8584 we don't really care; The main thing is to make this sym
8585 defined somewhere. Maybe defining the symbol in the stub
8586 section is a silly idea. If we didn't do this, htab->top_id
8588 stub_entry->h->oh->elf.root.type = bfd_link_hash_defined;
8589 stub_entry->h->oh->elf.root.u.def.section = stub_entry->stub_sec;
8590 stub_entry->h->oh->elf.root.u.def.value = stub_entry->stub_offset;
8593 /* Now build the stub. */
8595 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
8596 if (ent->addend == stub_entry->addend)
8598 off = ent->plt.offset;
8601 if (off >= (bfd_vma) -2)
8604 off &= ~ (bfd_vma) 1;
8605 off += (htab->plt->output_offset
8606 + htab->plt->output_section->vma
8607 - elf_gp (htab->plt->output_section->owner)
8608 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8610 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
8612 (*_bfd_error_handler)
8613 (_("linkage table error against `%s'"),
8614 stub_entry->h->elf.root.root.string);
8615 bfd_set_error (bfd_error_bad_value);
8616 htab->stub_error = TRUE;
8620 p = build_plt_stub (htab->stub_bfd, loc, off);
8629 stub_entry->stub_sec->size += size;
8631 if (htab->emit_stub_syms)
8633 struct elf_link_hash_entry *h;
8636 const char *const stub_str[] = { "long_branch",
8637 "long_branch_r2off",
8642 len1 = strlen (stub_str[stub_entry->stub_type - 1]);
8643 len2 = strlen (stub_entry->root.string);
8644 name = bfd_malloc (len1 + len2 + 2);
8647 memcpy (name, stub_entry->root.string, 9);
8648 memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1);
8649 memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1);
8650 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
8653 if (h->root.type == bfd_link_hash_new)
8655 h->root.type = bfd_link_hash_defined;
8656 h->root.u.def.section = stub_entry->stub_sec;
8657 h->root.u.def.value = stub_entry->stub_offset;
8660 h->ref_regular_nonweak = 1;
8661 h->forced_local = 1;
8669 /* As above, but don't actually build the stub. Just bump offset so
8670 we know stub section sizes, and select plt_branch stubs where
8671 long_branch stubs won't do. */
8674 ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
8676 struct ppc_stub_hash_entry *stub_entry;
8677 struct bfd_link_info *info;
8678 struct ppc_link_hash_table *htab;
8682 /* Massage our args to the form they really have. */
8683 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
8686 htab = ppc_hash_table (info);
8688 if (stub_entry->stub_type == ppc_stub_plt_call)
8690 struct plt_entry *ent;
8692 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
8693 if (ent->addend == stub_entry->addend)
8695 off = ent->plt.offset & ~(bfd_vma) 1;
8698 if (off >= (bfd_vma) -2)
8700 off += (htab->plt->output_offset
8701 + htab->plt->output_section->vma
8702 - elf_gp (htab->plt->output_section->owner)
8703 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8705 size = PLT_CALL_STUB_SIZE;
8706 if (PPC_HA (off) == 0)
8708 if (PPC_HA (off + 16) != PPC_HA (off))
8713 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
8717 off = (stub_entry->target_value
8718 + stub_entry->target_section->output_offset
8719 + stub_entry->target_section->output_section->vma);
8720 off -= (stub_entry->stub_sec->size
8721 + stub_entry->stub_sec->output_offset
8722 + stub_entry->stub_sec->output_section->vma);
8724 /* Reset the stub type from the plt variant in case we now
8725 can reach with a shorter stub. */
8726 if (stub_entry->stub_type >= ppc_stub_plt_branch)
8727 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
8730 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
8732 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8733 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8735 if (PPC_HA (r2off) != 0)
8740 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
8741 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
8743 struct ppc_branch_hash_entry *br_entry;
8746 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
8747 stub_entry->root.string + 9,
8749 if (br_entry == NULL)
8751 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
8752 stub_entry->root.string);
8753 htab->stub_error = TRUE;
8757 if (br_entry->iter != htab->stub_iteration)
8759 br_entry->iter = htab->stub_iteration;
8760 br_entry->offset = htab->brlt->size;
8761 htab->brlt->size += 8;
8763 if (htab->relbrlt != NULL)
8764 htab->relbrlt->size += sizeof (Elf64_External_Rela);
8765 else if (info->emitrelocations)
8767 htab->brlt->reloc_count += 1;
8768 htab->brlt->flags |= SEC_RELOC;
8772 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
8773 off = (br_entry->offset
8774 + htab->brlt->output_offset
8775 + htab->brlt->output_section->vma
8776 - elf_gp (htab->brlt->output_section->owner)
8777 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8780 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
8783 if (PPC_HA (indx) != 0)
8789 if (PPC_HA (indx) != 0)
8792 if (PPC_HA (r2off) != 0)
8796 else if (info->emitrelocations)
8798 stub_entry->stub_sec->reloc_count += 1;
8799 stub_entry->stub_sec->flags |= SEC_RELOC;
8803 stub_entry->stub_sec->size += size;
8807 /* Set up various things so that we can make a list of input sections
8808 for each output section included in the link. Returns -1 on error,
8809 0 when no stubs will be needed, and 1 on success. */
8812 ppc64_elf_setup_section_lists (bfd *output_bfd,
8813 struct bfd_link_info *info,
8817 int top_id, top_index, id;
8819 asection **input_list;
8821 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8823 htab->no_multi_toc = no_multi_toc;
8825 if (htab->brlt == NULL)
8828 /* Find the top input section id. */
8829 for (input_bfd = info->input_bfds, top_id = 3;
8831 input_bfd = input_bfd->link_next)
8833 for (section = input_bfd->sections;
8835 section = section->next)
8837 if (top_id < section->id)
8838 top_id = section->id;
8842 htab->top_id = top_id;
8843 amt = sizeof (struct map_stub) * (top_id + 1);
8844 htab->stub_group = bfd_zmalloc (amt);
8845 if (htab->stub_group == NULL)
8848 /* Set toc_off for com, und, abs and ind sections. */
8849 for (id = 0; id < 3; id++)
8850 htab->stub_group[id].toc_off = TOC_BASE_OFF;
8852 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
8854 /* We can't use output_bfd->section_count here to find the top output
8855 section index as some sections may have been removed, and
8856 strip_excluded_output_sections doesn't renumber the indices. */
8857 for (section = output_bfd->sections, top_index = 0;
8859 section = section->next)
8861 if (top_index < section->index)
8862 top_index = section->index;
8865 htab->top_index = top_index;
8866 amt = sizeof (asection *) * (top_index + 1);
8867 input_list = bfd_zmalloc (amt);
8868 htab->input_list = input_list;
8869 if (input_list == NULL)
8875 /* The linker repeatedly calls this function for each TOC input section
8876 and linker generated GOT section. Group input bfds such that the toc
8877 within a group is less than 64k in size. Will break with cute linker
8878 scripts that play games with dot in the output toc section. */
8881 ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
8883 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8885 if (!htab->no_multi_toc)
8887 bfd_vma addr = isec->output_offset + isec->output_section->vma;
8888 bfd_vma off = addr - htab->toc_curr;
8890 if (off + isec->size > 0x10000)
8891 htab->toc_curr = addr;
8893 elf_gp (isec->owner) = (htab->toc_curr
8894 - elf_gp (isec->output_section->owner)
8899 /* Called after the last call to the above function. */
8902 ppc64_elf_reinit_toc (bfd *output_bfd, struct bfd_link_info *info)
8904 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8906 htab->multi_toc_needed = htab->toc_curr != elf_gp (output_bfd);
8908 /* toc_curr tracks the TOC offset used for code sections below in
8909 ppc64_elf_next_input_section. Start off at 0x8000. */
8910 htab->toc_curr = TOC_BASE_OFF;
8913 /* No toc references were found in ISEC. If the code in ISEC makes no
8914 calls, then there's no need to use toc adjusting stubs when branching
8915 into ISEC. Actually, indirect calls from ISEC are OK as they will
8916 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
8917 needed, and 2 if a cyclical call-graph was found but no other reason
8918 for a stub was detected. If called from the top level, a return of
8919 2 means the same as a return of 0. */
8922 toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
8924 Elf_Internal_Rela *relstart, *rel;
8925 Elf_Internal_Sym *local_syms;
8927 struct ppc_link_hash_table *htab;
8929 /* We know none of our code bearing sections will need toc stubs. */
8930 if ((isec->flags & SEC_LINKER_CREATED) != 0)
8933 if (isec->size == 0)
8936 if (isec->output_section == NULL)
8939 if (isec->reloc_count == 0)
8942 relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL,
8944 if (relstart == NULL)
8947 /* Look for branches to outside of this section. */
8950 htab = ppc_hash_table (info);
8951 for (rel = relstart; rel < relstart + isec->reloc_count; ++rel)
8953 enum elf_ppc64_reloc_type r_type;
8954 unsigned long r_symndx;
8955 struct elf_link_hash_entry *h;
8956 Elf_Internal_Sym *sym;
8962 r_type = ELF64_R_TYPE (rel->r_info);
8963 if (r_type != R_PPC64_REL24
8964 && r_type != R_PPC64_REL14
8965 && r_type != R_PPC64_REL14_BRTAKEN
8966 && r_type != R_PPC64_REL14_BRNTAKEN)
8969 r_symndx = ELF64_R_SYM (rel->r_info);
8970 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx,
8977 /* Calls to dynamic lib functions go through a plt call stub
8978 that uses r2. Branches to undefined symbols might be a call
8979 using old-style dot symbols that can be satisfied by a plt
8980 call into a new-style dynamic library. */
8981 if (sym_sec == NULL)
8983 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
8986 && eh->oh->elf.plt.plist != NULL)
8992 /* Ignore other undefined symbols. */
8996 /* Assume branches to other sections not included in the link need
8997 stubs too, to cover -R and absolute syms. */
8998 if (sym_sec->output_section == NULL)
9005 sym_value = sym->st_value;
9008 if (h->root.type != bfd_link_hash_defined
9009 && h->root.type != bfd_link_hash_defweak)
9011 sym_value = h->root.u.def.value;
9013 sym_value += rel->r_addend;
9015 /* If this branch reloc uses an opd sym, find the code section. */
9016 opd_adjust = get_opd_info (sym_sec);
9017 if (opd_adjust != NULL)
9023 adjust = opd_adjust[sym->st_value / 8];
9025 /* Assume deleted functions won't ever be called. */
9027 sym_value += adjust;
9030 dest = opd_entry_value (sym_sec, sym_value, &sym_sec, NULL);
9031 if (dest == (bfd_vma) -1)
9036 + sym_sec->output_offset
9037 + sym_sec->output_section->vma);
9039 /* Ignore branch to self. */
9040 if (sym_sec == isec)
9043 /* If the called function uses the toc, we need a stub. */
9044 if (sym_sec->has_toc_reloc
9045 || sym_sec->makes_toc_func_call)
9051 /* Assume any branch that needs a long branch stub might in fact
9052 need a plt_branch stub. A plt_branch stub uses r2. */
9053 else if (dest - (isec->output_offset
9054 + isec->output_section->vma
9055 + rel->r_offset) + (1 << 25) >= (2 << 25))
9061 /* If calling back to a section in the process of being tested, we
9062 can't say for sure that no toc adjusting stubs are needed, so
9063 don't return zero. */
9064 else if (sym_sec->call_check_in_progress)
9067 /* Branches to another section that itself doesn't have any TOC
9068 references are OK. Recursively call ourselves to check. */
9069 else if (sym_sec->id <= htab->top_id
9070 && htab->stub_group[sym_sec->id].toc_off == 0)
9074 /* Mark current section as indeterminate, so that other
9075 sections that call back to current won't be marked as
9077 isec->call_check_in_progress = 1;
9078 recur = toc_adjusting_stub_needed (info, sym_sec);
9079 isec->call_check_in_progress = 0;
9083 /* An error. Exit. */
9087 else if (recur <= 1)
9089 /* Known result. Mark as checked and set section flag. */
9090 htab->stub_group[sym_sec->id].toc_off = 1;
9093 sym_sec->makes_toc_func_call = 1;
9100 /* Unknown result. Continue checking. */
9106 if (local_syms != NULL
9107 && (elf_tdata (isec->owner)->symtab_hdr.contents
9108 != (unsigned char *) local_syms))
9110 if (elf_section_data (isec)->relocs != relstart)
9116 /* The linker repeatedly calls this function for each input section,
9117 in the order that input sections are linked into output sections.
9118 Build lists of input sections to determine groupings between which
9119 we may insert linker stubs. */
9122 ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
9124 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9126 if ((isec->output_section->flags & SEC_CODE) != 0
9127 && isec->output_section->index <= htab->top_index)
9129 asection **list = htab->input_list + isec->output_section->index;
9130 /* Steal the link_sec pointer for our list. */
9131 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
9132 /* This happens to make the list in reverse order,
9133 which is what we want. */
9134 PREV_SEC (isec) = *list;
9138 if (htab->multi_toc_needed)
9140 /* If a code section has a function that uses the TOC then we need
9141 to use the right TOC (obviously). Also, make sure that .opd gets
9142 the correct TOC value for R_PPC64_TOC relocs that don't have or
9143 can't find their function symbol (shouldn't ever happen now).
9144 Also specially treat .fixup for the linux kernel. .fixup
9145 contains branches, but only back to the function that hit an
9147 if (isec->has_toc_reloc
9148 || (isec->flags & SEC_CODE) == 0
9149 || strcmp (isec->name, ".fixup") == 0)
9151 if (elf_gp (isec->owner) != 0)
9152 htab->toc_curr = elf_gp (isec->owner);
9154 else if (htab->stub_group[isec->id].toc_off == 0)
9156 int ret = toc_adjusting_stub_needed (info, isec);
9160 isec->makes_toc_func_call = ret & 1;
9164 /* Functions that don't use the TOC can belong in any TOC group.
9165 Use the last TOC base. This happens to make _init and _fini
9167 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9171 /* See whether we can group stub sections together. Grouping stub
9172 sections may result in fewer stubs. More importantly, we need to
9173 put all .init* and .fini* stubs at the beginning of the .init or
9174 .fini output sections respectively, because glibc splits the
9175 _init and _fini functions into multiple parts. Putting a stub in
9176 the middle of a function is not a good idea. */
9179 group_sections (struct ppc_link_hash_table *htab,
9180 bfd_size_type stub_group_size,
9181 bfd_boolean stubs_always_before_branch)
9184 bfd_size_type stub14_group_size;
9185 bfd_boolean suppress_size_errors;
9187 suppress_size_errors = FALSE;
9188 stub14_group_size = stub_group_size;
9189 if (stub_group_size == 1)
9191 /* Default values. */
9192 if (stubs_always_before_branch)
9194 stub_group_size = 0x1e00000;
9195 stub14_group_size = 0x7800;
9199 stub_group_size = 0x1c00000;
9200 stub14_group_size = 0x7000;
9202 suppress_size_errors = TRUE;
9205 list = htab->input_list + htab->top_index;
9208 asection *tail = *list;
9209 while (tail != NULL)
9213 bfd_size_type total;
9214 bfd_boolean big_sec;
9219 big_sec = total > (ppc64_elf_section_data (tail)->has_14bit_branch
9220 ? stub14_group_size : stub_group_size);
9221 if (big_sec && !suppress_size_errors)
9222 (*_bfd_error_handler) (_("%B section %A exceeds stub group size"),
9224 curr_toc = htab->stub_group[tail->id].toc_off;
9226 while ((prev = PREV_SEC (curr)) != NULL
9227 && ((total += curr->output_offset - prev->output_offset)
9228 < (ppc64_elf_section_data (prev)->has_14bit_branch
9229 ? stub14_group_size : stub_group_size))
9230 && htab->stub_group[prev->id].toc_off == curr_toc)
9233 /* OK, the size from the start of CURR to the end is less
9234 than stub_group_size and thus can be handled by one stub
9235 section. (or the tail section is itself larger than
9236 stub_group_size, in which case we may be toast.) We
9237 should really be keeping track of the total size of stubs
9238 added here, as stubs contribute to the final output
9239 section size. That's a little tricky, and this way will
9240 only break if stubs added make the total size more than
9241 2^25, ie. for the default stub_group_size, if stubs total
9242 more than 2097152 bytes, or nearly 75000 plt call stubs. */
9245 prev = PREV_SEC (tail);
9246 /* Set up this stub group. */
9247 htab->stub_group[tail->id].link_sec = curr;
9249 while (tail != curr && (tail = prev) != NULL);
9251 /* But wait, there's more! Input sections up to stub_group_size
9252 bytes before the stub section can be handled by it too.
9253 Don't do this if we have a really large section after the
9254 stubs, as adding more stubs increases the chance that
9255 branches may not reach into the stub section. */
9256 if (!stubs_always_before_branch && !big_sec)
9260 && ((total += tail->output_offset - prev->output_offset)
9261 < (ppc64_elf_section_data (prev)->has_14bit_branch
9262 ? stub14_group_size : stub_group_size))
9263 && htab->stub_group[prev->id].toc_off == curr_toc)
9266 prev = PREV_SEC (tail);
9267 htab->stub_group[tail->id].link_sec = curr;
9273 while (list-- != htab->input_list);
9274 free (htab->input_list);
9278 /* Determine and set the size of the stub section for a final link.
9280 The basic idea here is to examine all the relocations looking for
9281 PC-relative calls to a target that is unreachable with a "bl"
9285 ppc64_elf_size_stubs (bfd *output_bfd,
9286 struct bfd_link_info *info,
9287 bfd_signed_vma group_size,
9288 asection *(*add_stub_section) (const char *, asection *),
9289 void (*layout_sections_again) (void))
9291 bfd_size_type stub_group_size;
9292 bfd_boolean stubs_always_before_branch;
9293 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9295 /* Stash our params away. */
9296 htab->add_stub_section = add_stub_section;
9297 htab->layout_sections_again = layout_sections_again;
9298 stubs_always_before_branch = group_size < 0;
9300 stub_group_size = -group_size;
9302 stub_group_size = group_size;
9304 group_sections (htab, stub_group_size, stubs_always_before_branch);
9309 unsigned int bfd_indx;
9312 htab->stub_iteration += 1;
9314 for (input_bfd = info->input_bfds, bfd_indx = 0;
9316 input_bfd = input_bfd->link_next, bfd_indx++)
9318 Elf_Internal_Shdr *symtab_hdr;
9320 Elf_Internal_Sym *local_syms = NULL;
9322 if (!is_ppc64_elf_target (input_bfd->xvec))
9325 /* We'll need the symbol table in a second. */
9326 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
9327 if (symtab_hdr->sh_info == 0)
9330 /* Walk over each section attached to the input bfd. */
9331 for (section = input_bfd->sections;
9333 section = section->next)
9335 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
9337 /* If there aren't any relocs, then there's nothing more
9339 if ((section->flags & SEC_RELOC) == 0
9340 || (section->flags & SEC_ALLOC) == 0
9341 || (section->flags & SEC_LOAD) == 0
9342 || (section->flags & SEC_CODE) == 0
9343 || section->reloc_count == 0)
9346 /* If this section is a link-once section that will be
9347 discarded, then don't create any stubs. */
9348 if (section->output_section == NULL
9349 || section->output_section->owner != output_bfd)
9352 /* Get the relocs. */
9354 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
9356 if (internal_relocs == NULL)
9357 goto error_ret_free_local;
9359 /* Now examine each relocation. */
9360 irela = internal_relocs;
9361 irelaend = irela + section->reloc_count;
9362 for (; irela < irelaend; irela++)
9364 enum elf_ppc64_reloc_type r_type;
9365 unsigned int r_indx;
9366 enum ppc_stub_type stub_type;
9367 struct ppc_stub_hash_entry *stub_entry;
9368 asection *sym_sec, *code_sec;
9370 bfd_vma destination;
9371 bfd_boolean ok_dest;
9372 struct ppc_link_hash_entry *hash;
9373 struct ppc_link_hash_entry *fdh;
9374 struct elf_link_hash_entry *h;
9375 Elf_Internal_Sym *sym;
9377 const asection *id_sec;
9380 r_type = ELF64_R_TYPE (irela->r_info);
9381 r_indx = ELF64_R_SYM (irela->r_info);
9383 if (r_type >= R_PPC64_max)
9385 bfd_set_error (bfd_error_bad_value);
9386 goto error_ret_free_internal;
9389 /* Only look for stubs on branch instructions. */
9390 if (r_type != R_PPC64_REL24
9391 && r_type != R_PPC64_REL14
9392 && r_type != R_PPC64_REL14_BRTAKEN
9393 && r_type != R_PPC64_REL14_BRNTAKEN)
9396 /* Now determine the call target, its name, value,
9398 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9400 goto error_ret_free_internal;
9401 hash = (struct ppc_link_hash_entry *) h;
9408 sym_value = sym->st_value;
9411 else if (hash->elf.root.type == bfd_link_hash_defined
9412 || hash->elf.root.type == bfd_link_hash_defweak)
9414 sym_value = hash->elf.root.u.def.value;
9415 if (sym_sec->output_section != NULL)
9418 else if (hash->elf.root.type == bfd_link_hash_undefweak
9419 || hash->elf.root.type == bfd_link_hash_undefined)
9421 /* Recognise an old ABI func code entry sym, and
9422 use the func descriptor sym instead if it is
9424 if (hash->elf.root.root.string[0] == '.'
9425 && (fdh = get_fdh (hash, htab)) != NULL)
9427 if (fdh->elf.root.type == bfd_link_hash_defined
9428 || fdh->elf.root.type == bfd_link_hash_defweak)
9430 sym_sec = fdh->elf.root.u.def.section;
9431 sym_value = fdh->elf.root.u.def.value;
9432 if (sym_sec->output_section != NULL)
9441 bfd_set_error (bfd_error_bad_value);
9442 goto error_ret_free_internal;
9448 sym_value += irela->r_addend;
9449 destination = (sym_value
9450 + sym_sec->output_offset
9451 + sym_sec->output_section->vma);
9455 opd_adjust = get_opd_info (sym_sec);
9456 if (opd_adjust != NULL)
9462 long adjust = opd_adjust[sym_value / 8];
9465 sym_value += adjust;
9467 dest = opd_entry_value (sym_sec, sym_value,
9468 &code_sec, &sym_value);
9469 if (dest != (bfd_vma) -1)
9474 /* Fixup old ABI sym to point at code
9476 hash->elf.root.type = bfd_link_hash_defweak;
9477 hash->elf.root.u.def.section = code_sec;
9478 hash->elf.root.u.def.value = sym_value;
9483 /* Determine what (if any) linker stub is needed. */
9484 stub_type = ppc_type_of_stub (section, irela, &hash,
9487 if (stub_type != ppc_stub_plt_call)
9489 /* Check whether we need a TOC adjusting stub.
9490 Since the linker pastes together pieces from
9491 different object files when creating the
9492 _init and _fini functions, it may be that a
9493 call to what looks like a local sym is in
9494 fact a call needing a TOC adjustment. */
9495 if (code_sec != NULL
9496 && code_sec->output_section != NULL
9497 && (htab->stub_group[code_sec->id].toc_off
9498 != htab->stub_group[section->id].toc_off)
9499 && (code_sec->has_toc_reloc
9500 || code_sec->makes_toc_func_call))
9501 stub_type = ppc_stub_long_branch_r2off;
9504 if (stub_type == ppc_stub_none)
9507 /* __tls_get_addr calls might be eliminated. */
9508 if (stub_type != ppc_stub_plt_call
9510 && (hash == htab->tls_get_addr
9511 || hash == htab->tls_get_addr_fd)
9512 && section->has_tls_reloc
9513 && irela != internal_relocs)
9518 if (!get_tls_mask (&tls_mask, NULL, &local_syms,
9519 irela - 1, input_bfd))
9520 goto error_ret_free_internal;
9525 /* Support for grouping stub sections. */
9526 id_sec = htab->stub_group[section->id].link_sec;
9528 /* Get the name of this stub. */
9529 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
9531 goto error_ret_free_internal;
9533 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
9534 stub_name, FALSE, FALSE);
9535 if (stub_entry != NULL)
9537 /* The proper stub has already been created. */
9542 stub_entry = ppc_add_stub (stub_name, section, htab);
9543 if (stub_entry == NULL)
9546 error_ret_free_internal:
9547 if (elf_section_data (section)->relocs == NULL)
9548 free (internal_relocs);
9549 error_ret_free_local:
9550 if (local_syms != NULL
9551 && (symtab_hdr->contents
9552 != (unsigned char *) local_syms))
9557 stub_entry->stub_type = stub_type;
9558 stub_entry->target_value = sym_value;
9559 stub_entry->target_section = code_sec;
9560 stub_entry->h = hash;
9561 stub_entry->addend = irela->r_addend;
9563 if (stub_entry->h != NULL)
9564 htab->stub_globals += 1;
9567 /* We're done with the internal relocs, free them. */
9568 if (elf_section_data (section)->relocs != internal_relocs)
9569 free (internal_relocs);
9572 if (local_syms != NULL
9573 && symtab_hdr->contents != (unsigned char *) local_syms)
9575 if (!info->keep_memory)
9578 symtab_hdr->contents = (unsigned char *) local_syms;
9582 /* We may have added some stubs. Find out the new size of the
9584 for (stub_sec = htab->stub_bfd->sections;
9586 stub_sec = stub_sec->next)
9587 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
9589 stub_sec->rawsize = stub_sec->size;
9591 stub_sec->reloc_count = 0;
9592 stub_sec->flags &= ~SEC_RELOC;
9595 htab->brlt->size = 0;
9596 htab->brlt->reloc_count = 0;
9597 htab->brlt->flags &= ~SEC_RELOC;
9598 if (htab->relbrlt != NULL)
9599 htab->relbrlt->size = 0;
9601 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
9603 for (stub_sec = htab->stub_bfd->sections;
9605 stub_sec = stub_sec->next)
9606 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
9607 && stub_sec->rawsize != stub_sec->size)
9610 /* Exit from this loop when no stubs have been added, and no stubs
9611 have changed size. */
9612 if (stub_sec == NULL)
9615 /* Ask the linker to do its stuff. */
9616 (*htab->layout_sections_again) ();
9619 /* It would be nice to strip htab->brlt from the output if the
9620 section is empty, but it's too late. If we strip sections here,
9621 the dynamic symbol table is corrupted since the section symbol
9622 for the stripped section isn't written. */
9627 /* Called after we have determined section placement. If sections
9628 move, we'll be called again. Provide a value for TOCstart. */
9631 ppc64_elf_toc (bfd *obfd)
9636 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
9637 order. The TOC starts where the first of these sections starts. */
9638 s = bfd_get_section_by_name (obfd, ".got");
9640 s = bfd_get_section_by_name (obfd, ".toc");
9642 s = bfd_get_section_by_name (obfd, ".tocbss");
9644 s = bfd_get_section_by_name (obfd, ".plt");
9647 /* This may happen for
9648 o references to TOC base (SYM@toc / TOC[tc0]) without a
9651 o --gc-sections and empty TOC sections
9653 FIXME: Warn user? */
9655 /* Look for a likely section. We probably won't even be
9657 for (s = obfd->sections; s != NULL; s = s->next)
9658 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
9659 == (SEC_ALLOC | SEC_SMALL_DATA))
9662 for (s = obfd->sections; s != NULL; s = s->next)
9663 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
9664 == (SEC_ALLOC | SEC_SMALL_DATA))
9667 for (s = obfd->sections; s != NULL; s = s->next)
9668 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
9671 for (s = obfd->sections; s != NULL; s = s->next)
9672 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
9678 TOCstart = s->output_section->vma + s->output_offset;
9683 /* Build all the stubs associated with the current output file.
9684 The stubs are kept in a hash table attached to the main linker
9685 hash table. This function is called via gldelf64ppc_finish. */
9688 ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
9689 struct bfd_link_info *info,
9692 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9695 int stub_sec_count = 0;
9697 htab->emit_stub_syms = emit_stub_syms;
9699 /* Allocate memory to hold the linker stubs. */
9700 for (stub_sec = htab->stub_bfd->sections;
9702 stub_sec = stub_sec->next)
9703 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
9704 && stub_sec->size != 0)
9706 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
9707 if (stub_sec->contents == NULL)
9709 /* We want to check that built size is the same as calculated
9710 size. rawsize is a convenient location to use. */
9711 stub_sec->rawsize = stub_sec->size;
9715 if (htab->glink != NULL && htab->glink->size != 0)
9720 /* Build the .glink plt call stub. */
9721 if (htab->emit_stub_syms)
9723 struct elf_link_hash_entry *h;
9724 h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE);
9727 if (h->root.type == bfd_link_hash_new)
9729 h->root.type = bfd_link_hash_defined;
9730 h->root.u.def.section = htab->glink;
9731 h->root.u.def.value = 8;
9734 h->ref_regular_nonweak = 1;
9735 h->forced_local = 1;
9739 p = htab->glink->contents;
9740 plt0 = (htab->plt->output_section->vma
9741 + htab->plt->output_offset
9742 - (htab->glink->output_section->vma
9743 + htab->glink->output_offset
9745 bfd_put_64 (htab->glink->owner, plt0, p);
9747 bfd_put_32 (htab->glink->owner, MFLR_R12, p);
9749 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
9751 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
9753 bfd_put_32 (htab->glink->owner, LD_R2_M16R11, p);
9755 bfd_put_32 (htab->glink->owner, MTLR_R12, p);
9757 bfd_put_32 (htab->glink->owner, ADD_R12_R2_R11, p);
9759 bfd_put_32 (htab->glink->owner, LD_R11_0R12, p);
9761 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
9763 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
9765 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
9767 bfd_put_32 (htab->glink->owner, BCTR, p);
9769 while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE)
9771 bfd_put_32 (htab->glink->owner, NOP, p);
9775 /* Build the .glink lazy link call stubs. */
9777 while (p < htab->glink->contents + htab->glink->size)
9781 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9786 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9788 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9791 bfd_put_32 (htab->glink->owner,
9792 B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p);
9796 htab->glink->rawsize = p - htab->glink->contents;
9799 if (htab->brlt->size != 0)
9801 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
9803 if (htab->brlt->contents == NULL)
9806 if (htab->relbrlt != NULL && htab->relbrlt->size != 0)
9808 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
9809 htab->relbrlt->size);
9810 if (htab->relbrlt->contents == NULL)
9814 /* Build the stubs as directed by the stub hash table. */
9815 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
9817 if (htab->relbrlt != NULL)
9818 htab->relbrlt->reloc_count = 0;
9820 for (stub_sec = htab->stub_bfd->sections;
9822 stub_sec = stub_sec->next)
9823 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
9825 stub_sec_count += 1;
9826 if (stub_sec->rawsize != stub_sec->size)
9830 if (stub_sec != NULL
9831 || htab->glink->rawsize != htab->glink->size)
9833 htab->stub_error = TRUE;
9834 (*_bfd_error_handler) (_("stubs don't match calculated size"));
9837 if (htab->stub_error)
9842 *stats = bfd_malloc (500);
9846 sprintf (*stats, _("linker stubs in %u group%s\n"
9849 " long branch %lu\n"
9850 " long toc adj %lu\n"
9853 stub_sec_count == 1 ? "" : "s",
9854 htab->stub_count[ppc_stub_long_branch - 1],
9855 htab->stub_count[ppc_stub_long_branch_r2off - 1],
9856 htab->stub_count[ppc_stub_plt_branch - 1],
9857 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
9858 htab->stub_count[ppc_stub_plt_call - 1]);
9863 /* This function undoes the changes made by add_symbol_adjust. */
9866 undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
9868 struct ppc_link_hash_entry *eh;
9870 if (h->root.type == bfd_link_hash_indirect)
9873 if (h->root.type == bfd_link_hash_warning)
9874 h = (struct elf_link_hash_entry *) h->root.u.i.link;
9876 eh = (struct ppc_link_hash_entry *) h;
9877 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
9880 eh->elf.root.type = bfd_link_hash_undefined;
9885 ppc64_elf_restore_symbols (struct bfd_link_info *info)
9887 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9888 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
9891 /* What to do when ld finds relocations against symbols defined in
9892 discarded sections. */
9895 ppc64_elf_action_discarded (asection *sec)
9897 if (strcmp (".opd", sec->name) == 0)
9900 if (strcmp (".toc", sec->name) == 0)
9903 if (strcmp (".toc1", sec->name) == 0)
9906 return _bfd_elf_default_action_discarded (sec);
9909 /* The RELOCATE_SECTION function is called by the ELF backend linker
9910 to handle the relocations for a section.
9912 The relocs are always passed as Rela structures; if the section
9913 actually uses Rel structures, the r_addend field will always be
9916 This function is responsible for adjust the section contents as
9917 necessary, and (if using Rela relocs and generating a
9918 relocatable output file) adjusting the reloc addend as
9921 This function does not have to worry about setting the reloc
9922 address or the reloc symbol index.
9924 LOCAL_SYMS is a pointer to the swapped in local symbols.
9926 LOCAL_SECTIONS is an array giving the section in the input file
9927 corresponding to the st_shndx field of each local symbol.
9929 The global hash table entry for the global symbols can be found
9930 via elf_sym_hashes (input_bfd).
9932 When generating relocatable output, this function must handle
9933 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
9934 going to be the section symbol corresponding to the output
9935 section, which means that the addend must be adjusted
9939 ppc64_elf_relocate_section (bfd *output_bfd,
9940 struct bfd_link_info *info,
9942 asection *input_section,
9944 Elf_Internal_Rela *relocs,
9945 Elf_Internal_Sym *local_syms,
9946 asection **local_sections)
9948 struct ppc_link_hash_table *htab;
9949 Elf_Internal_Shdr *symtab_hdr;
9950 struct elf_link_hash_entry **sym_hashes;
9951 Elf_Internal_Rela *rel;
9952 Elf_Internal_Rela *relend;
9953 Elf_Internal_Rela outrel;
9955 struct got_entry **local_got_ents;
9957 bfd_boolean ret = TRUE;
9959 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
9960 bfd_boolean is_power4 = FALSE;
9961 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
9963 /* Initialize howto table if needed. */
9964 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
9967 htab = ppc_hash_table (info);
9969 /* Don't relocate stub sections. */
9970 if (input_section->owner == htab->stub_bfd)
9973 local_got_ents = elf_local_got_ents (input_bfd);
9974 TOCstart = elf_gp (output_bfd);
9975 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
9976 sym_hashes = elf_sym_hashes (input_bfd);
9977 is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd;
9980 relend = relocs + input_section->reloc_count;
9981 for (; rel < relend; rel++)
9983 enum elf_ppc64_reloc_type r_type;
9984 bfd_vma addend, orig_addend;
9985 bfd_reloc_status_type r;
9986 Elf_Internal_Sym *sym;
9988 struct elf_link_hash_entry *h_elf;
9989 struct ppc_link_hash_entry *h;
9990 struct ppc_link_hash_entry *fdh;
9991 const char *sym_name;
9992 unsigned long r_symndx, toc_symndx;
9993 char tls_mask, tls_gd, tls_type;
9996 bfd_boolean unresolved_reloc;
9998 unsigned long insn, mask;
9999 struct ppc_stub_hash_entry *stub_entry;
10000 bfd_vma max_br_offset;
10003 r_type = ELF64_R_TYPE (rel->r_info);
10004 r_symndx = ELF64_R_SYM (rel->r_info);
10006 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
10007 symbol of the previous ADDR64 reloc. The symbol gives us the
10008 proper TOC base to use. */
10009 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
10011 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
10013 r_symndx = ELF64_R_SYM (rel[-1].r_info);
10019 unresolved_reloc = FALSE;
10021 orig_addend = rel->r_addend;
10023 if (r_symndx < symtab_hdr->sh_info)
10025 /* It's a local symbol. */
10028 sym = local_syms + r_symndx;
10029 sec = local_sections[r_symndx];
10030 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
10031 sym_type = ELF64_ST_TYPE (sym->st_info);
10032 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
10033 opd_adjust = get_opd_info (sec);
10034 if (opd_adjust != NULL)
10036 long adjust = opd_adjust[(sym->st_value + rel->r_addend) / 8];
10041 /* If this is a relocation against the opd section sym
10042 and we have edited .opd, adjust the reloc addend so
10043 that ld -r and ld --emit-relocs output is correct.
10044 If it is a reloc against some other .opd symbol,
10045 then the symbol value will be adjusted later. */
10046 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
10047 rel->r_addend += adjust;
10049 relocation += adjust;
10055 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
10056 r_symndx, symtab_hdr, sym_hashes,
10057 h_elf, sec, relocation,
10058 unresolved_reloc, warned);
10059 sym_name = h_elf->root.root.string;
10060 sym_type = h_elf->type;
10062 h = (struct ppc_link_hash_entry *) h_elf;
10064 if (sec != NULL && elf_discarded_section (sec))
10066 /* For relocs against symbols from removed linkonce sections,
10067 or sections discarded by a linker script, we just want the
10068 section contents zeroed. Avoid any special processing. */
10069 _bfd_clear_contents (ppc64_elf_howto_table[r_type], input_bfd,
10070 contents + rel->r_offset);
10076 if (info->relocatable)
10079 /* TLS optimizations. Replace instruction sequences and relocs
10080 based on information we collected in tls_optimize. We edit
10081 RELOCS so that --emit-relocs will output something sensible
10082 for the final instruction stream. */
10086 if (IS_PPC64_TLS_RELOC (r_type))
10089 tls_mask = h->tls_mask;
10090 else if (local_got_ents != NULL)
10093 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
10094 tls_mask = lgot_masks[r_symndx];
10096 if (tls_mask == 0 && r_type == R_PPC64_TLS)
10098 /* Check for toc tls entries. */
10101 if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
10106 tls_mask = *toc_tls;
10110 /* Check that tls relocs are used with tls syms, and non-tls
10111 relocs are used with non-tls syms. */
10113 && r_type != R_PPC64_NONE
10115 || h->elf.root.type == bfd_link_hash_defined
10116 || h->elf.root.type == bfd_link_hash_defweak)
10117 && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS))
10119 if (r_type == R_PPC64_TLS && tls_mask != 0)
10120 /* R_PPC64_TLS is OK against a symbol in the TOC. */
10123 (*_bfd_error_handler)
10124 (sym_type == STT_TLS
10125 ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
10126 : _("%B(%A+0x%lx): %s used with non-TLS symbol %s"),
10129 (long) rel->r_offset,
10130 ppc64_elf_howto_table[r_type]->name,
10134 /* Ensure reloc mapping code below stays sane. */
10135 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
10136 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
10137 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
10138 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
10139 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
10140 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
10141 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
10142 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
10143 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
10144 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
10152 case R_PPC64_TOC16:
10153 case R_PPC64_TOC16_LO:
10154 case R_PPC64_TOC16_DS:
10155 case R_PPC64_TOC16_LO_DS:
10157 /* Check for toc tls entries. */
10161 retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
10168 tls_mask = *toc_tls;
10169 if (r_type == R_PPC64_TOC16_DS
10170 || r_type == R_PPC64_TOC16_LO_DS)
10173 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
10178 /* If we found a GD reloc pair, then we might be
10179 doing a GD->IE transition. */
10182 tls_gd = TLS_TPRELGD;
10183 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
10186 else if (retval == 3)
10188 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
10196 case R_PPC64_GOT_TPREL16_DS:
10197 case R_PPC64_GOT_TPREL16_LO_DS:
10199 && (tls_mask & TLS_TPREL) == 0)
10202 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
10204 insn |= 0x3c0d0000; /* addis 0,13,0 */
10205 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
10206 r_type = R_PPC64_TPREL16_HA;
10207 if (toc_symndx != 0)
10209 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
10210 /* We changed the symbol. Start over in order to
10211 get h, sym, sec etc. right. */
10216 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10222 && (tls_mask & TLS_TPREL) == 0)
10225 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
10226 if ((insn & ((0x3f << 26) | (31 << 11)))
10227 == ((31 << 26) | (13 << 11)))
10228 rtra = insn & ((1 << 26) - (1 << 16));
10229 else if ((insn & ((0x3f << 26) | (31 << 16)))
10230 == ((31 << 26) | (13 << 16)))
10231 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
10234 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
10237 else if ((insn & (31 << 1)) == 23 << 1
10238 && ((insn & (31 << 6)) < 14 << 6
10239 || ((insn & (31 << 6)) >= 16 << 6
10240 && (insn & (31 << 6)) < 24 << 6)))
10241 /* load and store indexed -> dform. */
10242 insn = (32 | ((insn >> 6) & 31)) << 26;
10243 else if ((insn & (31 << 1)) == 21 << 1
10244 && (insn & (0x1a << 6)) == 0)
10245 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
10246 insn = (((58 | ((insn >> 6) & 4)) << 26)
10247 | ((insn >> 6) & 1));
10248 else if ((insn & (31 << 1)) == 21 << 1
10249 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
10251 insn = (58 << 26) | 2;
10255 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
10256 /* Was PPC64_TLS which sits on insn boundary, now
10257 PPC64_TPREL16_LO which is at low-order half-word. */
10258 rel->r_offset += d_offset;
10259 r_type = R_PPC64_TPREL16_LO;
10260 if (toc_symndx != 0)
10262 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
10263 /* We changed the symbol. Start over in order to
10264 get h, sym, sec etc. right. */
10269 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10273 case R_PPC64_GOT_TLSGD16_HI:
10274 case R_PPC64_GOT_TLSGD16_HA:
10275 tls_gd = TLS_TPRELGD;
10276 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
10280 case R_PPC64_GOT_TLSLD16_HI:
10281 case R_PPC64_GOT_TLSLD16_HA:
10282 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
10285 if ((tls_mask & tls_gd) != 0)
10286 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
10287 + R_PPC64_GOT_TPREL16_DS);
10290 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
10291 rel->r_offset -= d_offset;
10292 r_type = R_PPC64_NONE;
10294 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10298 case R_PPC64_GOT_TLSGD16:
10299 case R_PPC64_GOT_TLSGD16_LO:
10300 tls_gd = TLS_TPRELGD;
10301 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
10305 case R_PPC64_GOT_TLSLD16:
10306 case R_PPC64_GOT_TLSLD16_LO:
10307 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
10309 bfd_vma insn1, insn2, insn3;
10313 /* We know that the next reloc is on a tls_get_addr
10314 call, since ppc64_elf_tls_optimize checks this. */
10315 offset = rel[1].r_offset;
10316 insn1 = bfd_get_32 (output_bfd,
10317 contents + rel->r_offset - d_offset);
10318 insn3 = bfd_get_32 (output_bfd,
10319 contents + offset + 4);
10320 if ((tls_mask & tls_gd) != 0)
10323 insn1 &= (1 << 26) - (1 << 2);
10324 insn1 |= 58 << 26; /* ld */
10325 insn2 = 0x7c636a14; /* add 3,3,13 */
10326 rel[1].r_info = ELF64_R_INFO (ELF64_R_SYM (rel[1].r_info),
10328 if ((tls_mask & TLS_EXPLICIT) == 0)
10329 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
10330 + R_PPC64_GOT_TPREL16_DS);
10332 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
10333 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10338 insn1 = 0x3c6d0000; /* addis 3,13,0 */
10339 insn2 = 0x38630000; /* addi 3,3,0 */
10342 /* Was an LD reloc. */
10344 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
10345 rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
10347 else if (toc_symndx != 0)
10348 r_symndx = toc_symndx;
10349 r_type = R_PPC64_TPREL16_HA;
10350 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10351 rel[1].r_info = ELF64_R_INFO (r_symndx,
10352 R_PPC64_TPREL16_LO);
10353 rel[1].r_offset += d_offset;
10356 || insn3 == CROR_151515 || insn3 == CROR_313131)
10360 rel[1].r_offset += 4;
10362 bfd_put_32 (output_bfd, insn1,
10363 contents + rel->r_offset - d_offset);
10364 bfd_put_32 (output_bfd, insn2, contents + offset);
10365 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
10366 if (tls_gd == 0 || toc_symndx != 0)
10368 /* We changed the symbol. Start over in order
10369 to get h, sym, sec etc. right. */
10376 case R_PPC64_DTPMOD64:
10377 if (rel + 1 < relend
10378 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
10379 && rel[1].r_offset == rel->r_offset + 8)
10381 if ((tls_mask & TLS_GD) == 0)
10383 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
10384 if ((tls_mask & TLS_TPRELGD) != 0)
10385 r_type = R_PPC64_TPREL64;
10388 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
10389 r_type = R_PPC64_NONE;
10391 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10396 if ((tls_mask & TLS_LD) == 0)
10398 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
10399 r_type = R_PPC64_NONE;
10400 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10405 case R_PPC64_TPREL64:
10406 if ((tls_mask & TLS_TPREL) == 0)
10408 r_type = R_PPC64_NONE;
10409 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10414 /* Handle other relocations that tweak non-addend part of insn. */
10416 max_br_offset = 1 << 25;
10417 addend = rel->r_addend;
10423 /* Branch taken prediction relocations. */
10424 case R_PPC64_ADDR14_BRTAKEN:
10425 case R_PPC64_REL14_BRTAKEN:
10426 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
10429 /* Branch not taken prediction relocations. */
10430 case R_PPC64_ADDR14_BRNTAKEN:
10431 case R_PPC64_REL14_BRNTAKEN:
10432 insn |= bfd_get_32 (output_bfd,
10433 contents + rel->r_offset) & ~(0x01 << 21);
10436 case R_PPC64_REL14:
10437 max_br_offset = 1 << 15;
10440 case R_PPC64_REL24:
10441 /* Calls to functions with a different TOC, such as calls to
10442 shared objects, need to alter the TOC pointer. This is
10443 done using a linkage stub. A REL24 branching to these
10444 linkage stubs needs to be followed by a nop, as the nop
10445 will be replaced with an instruction to restore the TOC
10450 && (((fdh = h->oh) != NULL
10451 && fdh->elf.plt.plist != NULL)
10452 || (fdh = h)->elf.plt.plist != NULL))
10454 && sec->output_section != NULL
10455 && sec->id <= htab->top_id
10456 && (htab->stub_group[sec->id].toc_off
10457 != htab->stub_group[input_section->id].toc_off)))
10458 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
10459 rel, htab)) != NULL
10460 && (stub_entry->stub_type == ppc_stub_plt_call
10461 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
10462 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
10464 bfd_boolean can_plt_call = FALSE;
10466 if (rel->r_offset + 8 <= input_section->size)
10469 nop = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
10471 || nop == CROR_151515 || nop == CROR_313131)
10473 bfd_put_32 (input_bfd, LD_R2_40R1,
10474 contents + rel->r_offset + 4);
10475 can_plt_call = TRUE;
10481 if (stub_entry->stub_type == ppc_stub_plt_call)
10483 /* If this is a plain branch rather than a branch
10484 and link, don't require a nop. However, don't
10485 allow tail calls in a shared library as they
10486 will result in r2 being corrupted. */
10488 br = bfd_get_32 (input_bfd, contents + rel->r_offset);
10489 if (info->executable && (br & 1) == 0)
10490 can_plt_call = TRUE;
10495 && strcmp (h->elf.root.root.string,
10496 ".__libc_start_main") == 0)
10498 /* Allow crt1 branch to go via a toc adjusting stub. */
10499 can_plt_call = TRUE;
10503 if (strcmp (input_section->output_section->name,
10505 || strcmp (input_section->output_section->name,
10507 (*_bfd_error_handler)
10508 (_("%B(%A+0x%lx): automatic multiple TOCs "
10509 "not supported using your crt files; "
10510 "recompile with -mminimal-toc or upgrade gcc"),
10513 (long) rel->r_offset);
10515 (*_bfd_error_handler)
10516 (_("%B(%A+0x%lx): sibling call optimization to `%s' "
10517 "does not allow automatic multiple TOCs; "
10518 "recompile with -mminimal-toc or "
10519 "-fno-optimize-sibling-calls, "
10520 "or make `%s' extern"),
10523 (long) rel->r_offset,
10526 bfd_set_error (bfd_error_bad_value);
10532 && stub_entry->stub_type == ppc_stub_plt_call)
10533 unresolved_reloc = FALSE;
10536 if (stub_entry == NULL
10537 && get_opd_info (sec) != NULL)
10539 /* The branch destination is the value of the opd entry. */
10540 bfd_vma off = (relocation + addend
10541 - sec->output_section->vma
10542 - sec->output_offset);
10543 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL);
10544 if (dest != (bfd_vma) -1)
10551 /* If the branch is out of reach we ought to have a long
10553 from = (rel->r_offset
10554 + input_section->output_offset
10555 + input_section->output_section->vma);
10557 if (stub_entry == NULL
10558 && (relocation + addend - from + max_br_offset
10559 >= 2 * max_br_offset)
10560 && r_type != R_PPC64_ADDR14_BRTAKEN
10561 && r_type != R_PPC64_ADDR14_BRNTAKEN)
10562 stub_entry = ppc_get_stub_entry (input_section, sec, h, rel,
10565 if (stub_entry != NULL)
10567 /* Munge up the value and addend so that we call the stub
10568 rather than the procedure directly. */
10569 relocation = (stub_entry->stub_offset
10570 + stub_entry->stub_sec->output_offset
10571 + stub_entry->stub_sec->output_section->vma);
10579 /* Set 'a' bit. This is 0b00010 in BO field for branch
10580 on CR(BI) insns (BO == 001at or 011at), and 0b01000
10581 for branch on CTR insns (BO == 1a00t or 1a01t). */
10582 if ((insn & (0x14 << 21)) == (0x04 << 21))
10583 insn |= 0x02 << 21;
10584 else if ((insn & (0x14 << 21)) == (0x10 << 21))
10585 insn |= 0x08 << 21;
10591 /* Invert 'y' bit if not the default. */
10592 if ((bfd_signed_vma) (relocation + addend - from) < 0)
10593 insn ^= 0x01 << 21;
10596 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
10599 /* NOP out calls to undefined weak functions.
10600 We can thus call a weak function without first
10601 checking whether the function is defined. */
10603 && h->elf.root.type == bfd_link_hash_undefweak
10604 && r_type == R_PPC64_REL24
10608 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
10614 /* Set `addend'. */
10619 (*_bfd_error_handler)
10620 (_("%B: unknown relocation type %d for symbol %s"),
10621 input_bfd, (int) r_type, sym_name);
10623 bfd_set_error (bfd_error_bad_value);
10629 case R_PPC64_GNU_VTINHERIT:
10630 case R_PPC64_GNU_VTENTRY:
10633 /* GOT16 relocations. Like an ADDR16 using the symbol's
10634 address in the GOT as relocation value instead of the
10635 symbol's value itself. Also, create a GOT entry for the
10636 symbol and put the symbol value there. */
10637 case R_PPC64_GOT_TLSGD16:
10638 case R_PPC64_GOT_TLSGD16_LO:
10639 case R_PPC64_GOT_TLSGD16_HI:
10640 case R_PPC64_GOT_TLSGD16_HA:
10641 tls_type = TLS_TLS | TLS_GD;
10644 case R_PPC64_GOT_TLSLD16:
10645 case R_PPC64_GOT_TLSLD16_LO:
10646 case R_PPC64_GOT_TLSLD16_HI:
10647 case R_PPC64_GOT_TLSLD16_HA:
10648 tls_type = TLS_TLS | TLS_LD;
10651 case R_PPC64_GOT_TPREL16_DS:
10652 case R_PPC64_GOT_TPREL16_LO_DS:
10653 case R_PPC64_GOT_TPREL16_HI:
10654 case R_PPC64_GOT_TPREL16_HA:
10655 tls_type = TLS_TLS | TLS_TPREL;
10658 case R_PPC64_GOT_DTPREL16_DS:
10659 case R_PPC64_GOT_DTPREL16_LO_DS:
10660 case R_PPC64_GOT_DTPREL16_HI:
10661 case R_PPC64_GOT_DTPREL16_HA:
10662 tls_type = TLS_TLS | TLS_DTPREL;
10665 case R_PPC64_GOT16:
10666 case R_PPC64_GOT16_LO:
10667 case R_PPC64_GOT16_HI:
10668 case R_PPC64_GOT16_HA:
10669 case R_PPC64_GOT16_DS:
10670 case R_PPC64_GOT16_LO_DS:
10673 /* Relocation is to the entry for this symbol in the global
10678 unsigned long indx = 0;
10680 if (tls_type == (TLS_TLS | TLS_LD)
10682 || !h->elf.def_dynamic))
10683 offp = &ppc64_tlsld_got (input_bfd)->offset;
10686 struct got_entry *ent;
10690 bfd_boolean dyn = htab->elf.dynamic_sections_created;
10691 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
10694 && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))
10695 /* This is actually a static link, or it is a
10696 -Bsymbolic link and the symbol is defined
10697 locally, or the symbol was forced to be local
10698 because of a version file. */
10702 indx = h->elf.dynindx;
10703 unresolved_reloc = FALSE;
10705 ent = h->elf.got.glist;
10709 if (local_got_ents == NULL)
10711 ent = local_got_ents[r_symndx];
10714 for (; ent != NULL; ent = ent->next)
10715 if (ent->addend == orig_addend
10716 && ent->owner == input_bfd
10717 && ent->tls_type == tls_type)
10721 offp = &ent->got.offset;
10724 got = ppc64_elf_tdata (input_bfd)->got;
10728 /* The offset must always be a multiple of 8. We use the
10729 least significant bit to record whether we have already
10730 processed this entry. */
10732 if ((off & 1) != 0)
10736 /* Generate relocs for the dynamic linker, except in
10737 the case of TLSLD where we'll use one entry per
10739 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
10742 if ((info->shared || indx != 0)
10744 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
10745 || h->elf.root.type != bfd_link_hash_undefweak))
10747 outrel.r_offset = (got->output_section->vma
10748 + got->output_offset
10750 outrel.r_addend = addend;
10751 if (tls_type & (TLS_LD | TLS_GD))
10753 outrel.r_addend = 0;
10754 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
10755 if (tls_type == (TLS_TLS | TLS_GD))
10757 loc = relgot->contents;
10758 loc += (relgot->reloc_count++
10759 * sizeof (Elf64_External_Rela));
10760 bfd_elf64_swap_reloca_out (output_bfd,
10762 outrel.r_offset += 8;
10763 outrel.r_addend = addend;
10765 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
10768 else if (tls_type == (TLS_TLS | TLS_DTPREL))
10769 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
10770 else if (tls_type == (TLS_TLS | TLS_TPREL))
10771 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
10772 else if (indx == 0)
10774 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
10776 /* Write the .got section contents for the sake
10778 loc = got->contents + off;
10779 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
10783 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
10785 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
10787 outrel.r_addend += relocation;
10788 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
10789 outrel.r_addend -= htab->elf.tls_sec->vma;
10791 loc = relgot->contents;
10792 loc += (relgot->reloc_count++
10793 * sizeof (Elf64_External_Rela));
10794 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
10797 /* Init the .got section contents here if we're not
10798 emitting a reloc. */
10801 relocation += addend;
10802 if (tls_type == (TLS_TLS | TLS_LD))
10804 else if (tls_type != 0)
10806 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
10807 if (tls_type == (TLS_TLS | TLS_TPREL))
10808 relocation += DTP_OFFSET - TP_OFFSET;
10810 if (tls_type == (TLS_TLS | TLS_GD))
10812 bfd_put_64 (output_bfd, relocation,
10813 got->contents + off + 8);
10818 bfd_put_64 (output_bfd, relocation,
10819 got->contents + off);
10823 if (off >= (bfd_vma) -2)
10826 relocation = got->output_offset + off;
10828 /* TOC base (r2) is TOC start plus 0x8000. */
10829 addend = -TOC_BASE_OFF;
10833 case R_PPC64_PLT16_HA:
10834 case R_PPC64_PLT16_HI:
10835 case R_PPC64_PLT16_LO:
10836 case R_PPC64_PLT32:
10837 case R_PPC64_PLT64:
10838 /* Relocation is to the entry for this symbol in the
10839 procedure linkage table. */
10841 /* Resolve a PLT reloc against a local symbol directly,
10842 without using the procedure linkage table. */
10846 /* It's possible that we didn't make a PLT entry for this
10847 symbol. This happens when statically linking PIC code,
10848 or when using -Bsymbolic. Go find a match if there is a
10850 if (htab->plt != NULL)
10852 struct plt_entry *ent;
10853 for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next)
10854 if (ent->addend == orig_addend
10855 && ent->plt.offset != (bfd_vma) -1)
10857 relocation = (htab->plt->output_section->vma
10858 + htab->plt->output_offset
10859 + ent->plt.offset);
10860 unresolved_reloc = FALSE;
10866 /* Relocation value is TOC base. */
10867 relocation = TOCstart;
10869 relocation += htab->stub_group[input_section->id].toc_off;
10870 else if (unresolved_reloc)
10872 else if (sec != NULL && sec->id <= htab->top_id)
10873 relocation += htab->stub_group[sec->id].toc_off;
10875 unresolved_reloc = TRUE;
10878 /* TOC16 relocs. We want the offset relative to the TOC base,
10879 which is the address of the start of the TOC plus 0x8000.
10880 The TOC consists of sections .got, .toc, .tocbss, and .plt,
10882 case R_PPC64_TOC16:
10883 case R_PPC64_TOC16_LO:
10884 case R_PPC64_TOC16_HI:
10885 case R_PPC64_TOC16_DS:
10886 case R_PPC64_TOC16_LO_DS:
10887 case R_PPC64_TOC16_HA:
10888 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
10891 /* Relocate against the beginning of the section. */
10892 case R_PPC64_SECTOFF:
10893 case R_PPC64_SECTOFF_LO:
10894 case R_PPC64_SECTOFF_HI:
10895 case R_PPC64_SECTOFF_DS:
10896 case R_PPC64_SECTOFF_LO_DS:
10897 case R_PPC64_SECTOFF_HA:
10899 addend -= sec->output_section->vma;
10902 case R_PPC64_REL14:
10903 case R_PPC64_REL14_BRNTAKEN:
10904 case R_PPC64_REL14_BRTAKEN:
10905 case R_PPC64_REL24:
10908 case R_PPC64_TPREL16:
10909 case R_PPC64_TPREL16_LO:
10910 case R_PPC64_TPREL16_HI:
10911 case R_PPC64_TPREL16_HA:
10912 case R_PPC64_TPREL16_DS:
10913 case R_PPC64_TPREL16_LO_DS:
10914 case R_PPC64_TPREL16_HIGHER:
10915 case R_PPC64_TPREL16_HIGHERA:
10916 case R_PPC64_TPREL16_HIGHEST:
10917 case R_PPC64_TPREL16_HIGHESTA:
10918 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
10920 /* The TPREL16 relocs shouldn't really be used in shared
10921 libs as they will result in DT_TEXTREL being set, but
10922 support them anyway. */
10926 case R_PPC64_DTPREL16:
10927 case R_PPC64_DTPREL16_LO:
10928 case R_PPC64_DTPREL16_HI:
10929 case R_PPC64_DTPREL16_HA:
10930 case R_PPC64_DTPREL16_DS:
10931 case R_PPC64_DTPREL16_LO_DS:
10932 case R_PPC64_DTPREL16_HIGHER:
10933 case R_PPC64_DTPREL16_HIGHERA:
10934 case R_PPC64_DTPREL16_HIGHEST:
10935 case R_PPC64_DTPREL16_HIGHESTA:
10936 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
10939 case R_PPC64_DTPMOD64:
10944 case R_PPC64_TPREL64:
10945 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
10948 case R_PPC64_DTPREL64:
10949 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
10952 /* Relocations that may need to be propagated if this is a
10954 case R_PPC64_REL30:
10955 case R_PPC64_REL32:
10956 case R_PPC64_REL64:
10957 case R_PPC64_ADDR14:
10958 case R_PPC64_ADDR14_BRNTAKEN:
10959 case R_PPC64_ADDR14_BRTAKEN:
10960 case R_PPC64_ADDR16:
10961 case R_PPC64_ADDR16_DS:
10962 case R_PPC64_ADDR16_HA:
10963 case R_PPC64_ADDR16_HI:
10964 case R_PPC64_ADDR16_HIGHER:
10965 case R_PPC64_ADDR16_HIGHERA:
10966 case R_PPC64_ADDR16_HIGHEST:
10967 case R_PPC64_ADDR16_HIGHESTA:
10968 case R_PPC64_ADDR16_LO:
10969 case R_PPC64_ADDR16_LO_DS:
10970 case R_PPC64_ADDR24:
10971 case R_PPC64_ADDR32:
10972 case R_PPC64_ADDR64:
10973 case R_PPC64_UADDR16:
10974 case R_PPC64_UADDR32:
10975 case R_PPC64_UADDR64:
10977 if ((input_section->flags & SEC_ALLOC) == 0)
10980 if (NO_OPD_RELOCS && is_opd)
10985 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
10986 || h->elf.root.type != bfd_link_hash_undefweak)
10987 && (MUST_BE_DYN_RELOC (r_type)
10988 || !SYMBOL_CALLS_LOCAL (info, &h->elf)))
10989 || (ELIMINATE_COPY_RELOCS
10992 && h->elf.dynindx != -1
10993 && !h->elf.non_got_ref
10994 && h->elf.def_dynamic
10995 && !h->elf.def_regular))
10997 Elf_Internal_Rela outrel;
10998 bfd_boolean skip, relocate;
11003 /* When generating a dynamic object, these relocations
11004 are copied into the output file to be resolved at run
11010 out_off = _bfd_elf_section_offset (output_bfd, info,
11011 input_section, rel->r_offset);
11012 if (out_off == (bfd_vma) -1)
11014 else if (out_off == (bfd_vma) -2)
11015 skip = TRUE, relocate = TRUE;
11016 out_off += (input_section->output_section->vma
11017 + input_section->output_offset);
11018 outrel.r_offset = out_off;
11019 outrel.r_addend = rel->r_addend;
11021 /* Optimize unaligned reloc use. */
11022 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
11023 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
11024 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
11025 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
11026 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
11027 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
11028 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
11029 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
11030 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
11033 memset (&outrel, 0, sizeof outrel);
11034 else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
11036 && r_type != R_PPC64_TOC)
11037 outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
11040 /* This symbol is local, or marked to become local,
11041 or this is an opd section reloc which must point
11042 at a local function. */
11043 outrel.r_addend += relocation;
11044 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
11046 if (is_opd && h != NULL)
11048 /* Lie about opd entries. This case occurs
11049 when building shared libraries and we
11050 reference a function in another shared
11051 lib. The same thing happens for a weak
11052 definition in an application that's
11053 overridden by a strong definition in a
11054 shared lib. (I believe this is a generic
11055 bug in binutils handling of weak syms.)
11056 In these cases we won't use the opd
11057 entry in this lib. */
11058 unresolved_reloc = FALSE;
11060 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
11062 /* We need to relocate .opd contents for ld.so.
11063 Prelink also wants simple and consistent rules
11064 for relocs. This make all RELATIVE relocs have
11065 *r_offset equal to r_addend. */
11072 if (bfd_is_abs_section (sec))
11074 else if (sec == NULL || sec->owner == NULL)
11076 bfd_set_error (bfd_error_bad_value);
11083 osec = sec->output_section;
11084 indx = elf_section_data (osec)->dynindx;
11088 if ((osec->flags & SEC_READONLY) == 0
11089 && htab->elf.data_index_section != NULL)
11090 osec = htab->elf.data_index_section;
11092 osec = htab->elf.text_index_section;
11093 indx = elf_section_data (osec)->dynindx;
11095 BFD_ASSERT (indx != 0);
11097 /* We are turning this relocation into one
11098 against a section symbol, so subtract out
11099 the output section's address but not the
11100 offset of the input section in the output
11102 outrel.r_addend -= osec->vma;
11105 outrel.r_info = ELF64_R_INFO (indx, r_type);
11109 sreloc = elf_section_data (input_section)->sreloc;
11110 if (sreloc == NULL)
11113 if (sreloc->reloc_count * sizeof (Elf64_External_Rela)
11116 loc = sreloc->contents;
11117 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
11118 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
11120 /* If this reloc is against an external symbol, it will
11121 be computed at runtime, so there's no need to do
11122 anything now. However, for the sake of prelink ensure
11123 that the section contents are a known value. */
11126 unresolved_reloc = FALSE;
11127 /* The value chosen here is quite arbitrary as ld.so
11128 ignores section contents except for the special
11129 case of .opd where the contents might be accessed
11130 before relocation. Choose zero, as that won't
11131 cause reloc overflow. */
11134 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
11135 to improve backward compatibility with older
11137 if (r_type == R_PPC64_ADDR64)
11138 addend = outrel.r_addend;
11139 /* Adjust pc_relative relocs to have zero in *r_offset. */
11140 else if (ppc64_elf_howto_table[r_type]->pc_relative)
11141 addend = (input_section->output_section->vma
11142 + input_section->output_offset
11149 case R_PPC64_GLOB_DAT:
11150 case R_PPC64_JMP_SLOT:
11151 case R_PPC64_RELATIVE:
11152 /* We shouldn't ever see these dynamic relocs in relocatable
11154 /* Fall through. */
11156 case R_PPC64_PLTGOT16:
11157 case R_PPC64_PLTGOT16_DS:
11158 case R_PPC64_PLTGOT16_HA:
11159 case R_PPC64_PLTGOT16_HI:
11160 case R_PPC64_PLTGOT16_LO:
11161 case R_PPC64_PLTGOT16_LO_DS:
11162 case R_PPC64_PLTREL32:
11163 case R_PPC64_PLTREL64:
11164 /* These ones haven't been implemented yet. */
11166 (*_bfd_error_handler)
11167 (_("%B: relocation %s is not supported for symbol %s."),
11169 ppc64_elf_howto_table[r_type]->name, sym_name);
11171 bfd_set_error (bfd_error_invalid_operation);
11176 /* Do any further special processing. */
11182 case R_PPC64_ADDR16_HA:
11183 case R_PPC64_ADDR16_HIGHERA:
11184 case R_PPC64_ADDR16_HIGHESTA:
11185 case R_PPC64_TOC16_HA:
11186 case R_PPC64_SECTOFF_HA:
11187 case R_PPC64_TPREL16_HA:
11188 case R_PPC64_DTPREL16_HA:
11189 case R_PPC64_TPREL16_HIGHER:
11190 case R_PPC64_TPREL16_HIGHERA:
11191 case R_PPC64_TPREL16_HIGHEST:
11192 case R_PPC64_TPREL16_HIGHESTA:
11193 case R_PPC64_DTPREL16_HIGHER:
11194 case R_PPC64_DTPREL16_HIGHERA:
11195 case R_PPC64_DTPREL16_HIGHEST:
11196 case R_PPC64_DTPREL16_HIGHESTA:
11197 /* It's just possible that this symbol is a weak symbol
11198 that's not actually defined anywhere. In that case,
11199 'sec' would be NULL, and we should leave the symbol
11200 alone (it will be set to zero elsewhere in the link). */
11205 case R_PPC64_GOT16_HA:
11206 case R_PPC64_PLTGOT16_HA:
11207 case R_PPC64_PLT16_HA:
11208 case R_PPC64_GOT_TLSGD16_HA:
11209 case R_PPC64_GOT_TLSLD16_HA:
11210 case R_PPC64_GOT_TPREL16_HA:
11211 case R_PPC64_GOT_DTPREL16_HA:
11212 /* Add 0x10000 if sign bit in 0:15 is set.
11213 Bits 0:15 are not used. */
11217 case R_PPC64_ADDR16_DS:
11218 case R_PPC64_ADDR16_LO_DS:
11219 case R_PPC64_GOT16_DS:
11220 case R_PPC64_GOT16_LO_DS:
11221 case R_PPC64_PLT16_LO_DS:
11222 case R_PPC64_SECTOFF_DS:
11223 case R_PPC64_SECTOFF_LO_DS:
11224 case R_PPC64_TOC16_DS:
11225 case R_PPC64_TOC16_LO_DS:
11226 case R_PPC64_PLTGOT16_DS:
11227 case R_PPC64_PLTGOT16_LO_DS:
11228 case R_PPC64_GOT_TPREL16_DS:
11229 case R_PPC64_GOT_TPREL16_LO_DS:
11230 case R_PPC64_GOT_DTPREL16_DS:
11231 case R_PPC64_GOT_DTPREL16_LO_DS:
11232 case R_PPC64_TPREL16_DS:
11233 case R_PPC64_TPREL16_LO_DS:
11234 case R_PPC64_DTPREL16_DS:
11235 case R_PPC64_DTPREL16_LO_DS:
11236 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
11238 /* If this reloc is against an lq insn, then the value must be
11239 a multiple of 16. This is somewhat of a hack, but the
11240 "correct" way to do this by defining _DQ forms of all the
11241 _DS relocs bloats all reloc switches in this file. It
11242 doesn't seem to make much sense to use any of these relocs
11243 in data, so testing the insn should be safe. */
11244 if ((insn & (0x3f << 26)) == (56u << 26))
11246 if (((relocation + addend) & mask) != 0)
11248 (*_bfd_error_handler)
11249 (_("%B: error: relocation %s not a multiple of %d"),
11251 ppc64_elf_howto_table[r_type]->name,
11253 bfd_set_error (bfd_error_bad_value);
11260 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
11261 because such sections are not SEC_ALLOC and thus ld.so will
11262 not process them. */
11263 if (unresolved_reloc
11264 && !((input_section->flags & SEC_DEBUGGING) != 0
11265 && h->elf.def_dynamic))
11267 (*_bfd_error_handler)
11268 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
11271 (long) rel->r_offset,
11272 ppc64_elf_howto_table[(int) r_type]->name,
11273 h->elf.root.root.string);
11277 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
11285 if (r != bfd_reloc_ok)
11287 if (sym_name == NULL)
11288 sym_name = "(null)";
11289 if (r == bfd_reloc_overflow)
11294 && h->elf.root.type == bfd_link_hash_undefweak
11295 && ppc64_elf_howto_table[r_type]->pc_relative)
11297 /* Assume this is a call protected by other code that
11298 detects the symbol is undefined. If this is the case,
11299 we can safely ignore the overflow. If not, the
11300 program is hosed anyway, and a little warning isn't
11306 if (!((*info->callbacks->reloc_overflow)
11307 (info, (h ? &h->elf.root : NULL), sym_name,
11308 ppc64_elf_howto_table[r_type]->name,
11309 orig_addend, input_bfd, input_section, rel->r_offset)))
11314 (*_bfd_error_handler)
11315 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
11318 (long) rel->r_offset,
11319 ppc64_elf_howto_table[r_type]->name,
11327 /* If we're emitting relocations, then shortly after this function
11328 returns, reloc offsets and addends for this section will be
11329 adjusted. Worse, reloc symbol indices will be for the output
11330 file rather than the input. Save a copy of the relocs for
11331 opd_entry_value. */
11332 if (is_opd && (info->emitrelocations || info->relocatable))
11335 amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
11336 rel = bfd_alloc (input_bfd, amt);
11337 BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd_relocs == NULL);
11338 ppc64_elf_tdata (input_bfd)->opd_relocs = rel;
11341 memcpy (rel, relocs, amt);
11346 /* Adjust the value of any local symbols in opd sections. */
11349 ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
11350 const char *name ATTRIBUTE_UNUSED,
11351 Elf_Internal_Sym *elfsym,
11352 asection *input_sec,
11353 struct elf_link_hash_entry *h)
11355 long *opd_adjust, adjust;
11361 opd_adjust = get_opd_info (input_sec);
11362 if (opd_adjust == NULL)
11365 value = elfsym->st_value - input_sec->output_offset;
11366 if (!info->relocatable)
11367 value -= input_sec->output_section->vma;
11369 adjust = opd_adjust[value / 8];
11371 elfsym->st_value = 0;
11373 elfsym->st_value += adjust;
11377 /* Finish up dynamic symbol handling. We set the contents of various
11378 dynamic sections here. */
11381 ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
11382 struct bfd_link_info *info,
11383 struct elf_link_hash_entry *h,
11384 Elf_Internal_Sym *sym)
11386 struct ppc_link_hash_table *htab;
11387 struct plt_entry *ent;
11388 Elf_Internal_Rela rela;
11391 htab = ppc_hash_table (info);
11393 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
11394 if (ent->plt.offset != (bfd_vma) -1)
11396 /* This symbol has an entry in the procedure linkage
11397 table. Set it up. */
11399 if (htab->plt == NULL
11400 || htab->relplt == NULL
11401 || htab->glink == NULL)
11404 /* Create a JMP_SLOT reloc to inform the dynamic linker to
11405 fill in the PLT entry. */
11406 rela.r_offset = (htab->plt->output_section->vma
11407 + htab->plt->output_offset
11408 + ent->plt.offset);
11409 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
11410 rela.r_addend = ent->addend;
11412 loc = htab->relplt->contents;
11413 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
11414 * sizeof (Elf64_External_Rela));
11415 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
11420 Elf_Internal_Rela rela;
11423 /* This symbol needs a copy reloc. Set it up. */
11425 if (h->dynindx == -1
11426 || (h->root.type != bfd_link_hash_defined
11427 && h->root.type != bfd_link_hash_defweak)
11428 || htab->relbss == NULL)
11431 rela.r_offset = (h->root.u.def.value
11432 + h->root.u.def.section->output_section->vma
11433 + h->root.u.def.section->output_offset);
11434 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
11436 loc = htab->relbss->contents;
11437 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
11438 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
11441 /* Mark some specially defined symbols as absolute. */
11442 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
11443 sym->st_shndx = SHN_ABS;
11448 /* Used to decide how to sort relocs in an optimal manner for the
11449 dynamic linker, before writing them out. */
11451 static enum elf_reloc_type_class
11452 ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
11454 enum elf_ppc64_reloc_type r_type;
11456 r_type = ELF64_R_TYPE (rela->r_info);
11459 case R_PPC64_RELATIVE:
11460 return reloc_class_relative;
11461 case R_PPC64_JMP_SLOT:
11462 return reloc_class_plt;
11464 return reloc_class_copy;
11466 return reloc_class_normal;
11470 /* Finish up the dynamic sections. */
11473 ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
11474 struct bfd_link_info *info)
11476 struct ppc_link_hash_table *htab;
11480 htab = ppc_hash_table (info);
11481 dynobj = htab->elf.dynobj;
11482 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
11484 if (htab->elf.dynamic_sections_created)
11486 Elf64_External_Dyn *dyncon, *dynconend;
11488 if (sdyn == NULL || htab->got == NULL)
11491 dyncon = (Elf64_External_Dyn *) sdyn->contents;
11492 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
11493 for (; dyncon < dynconend; dyncon++)
11495 Elf_Internal_Dyn dyn;
11498 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
11505 case DT_PPC64_GLINK:
11507 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
11508 /* We stupidly defined DT_PPC64_GLINK to be the start
11509 of glink rather than the first entry point, which is
11510 what ld.so needs, and now have a bigger stub to
11511 support automatic multiple TOCs. */
11512 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
11516 s = bfd_get_section_by_name (output_bfd, ".opd");
11519 dyn.d_un.d_ptr = s->vma;
11522 case DT_PPC64_OPDSZ:
11523 s = bfd_get_section_by_name (output_bfd, ".opd");
11526 dyn.d_un.d_val = s->size;
11531 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
11536 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
11540 dyn.d_un.d_val = htab->relplt->size;
11544 /* Don't count procedure linkage table relocs in the
11545 overall reloc count. */
11549 dyn.d_un.d_val -= s->size;
11553 /* We may not be using the standard ELF linker script.
11554 If .rela.plt is the first .rela section, we adjust
11555 DT_RELA to not include it. */
11559 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
11561 dyn.d_un.d_ptr += s->size;
11565 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
11569 if (htab->got != NULL && htab->got->size != 0)
11571 /* Fill in the first entry in the global offset table.
11572 We use it to hold the link-time TOCbase. */
11573 bfd_put_64 (output_bfd,
11574 elf_gp (output_bfd) + TOC_BASE_OFF,
11575 htab->got->contents);
11577 /* Set .got entry size. */
11578 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
11581 if (htab->plt != NULL && htab->plt->size != 0)
11583 /* Set .plt entry size. */
11584 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
11588 /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for
11589 brlt ourselves if emitrelocations. */
11590 if (htab->brlt != NULL
11591 && htab->brlt->reloc_count != 0
11592 && !_bfd_elf_link_output_relocs (output_bfd,
11594 &elf_section_data (htab->brlt)->rel_hdr,
11595 elf_section_data (htab->brlt)->relocs,
11599 /* We need to handle writing out multiple GOT sections ourselves,
11600 since we didn't add them to DYNOBJ. We know dynobj is the first
11602 while ((dynobj = dynobj->link_next) != NULL)
11606 if (!is_ppc64_elf_target (dynobj->xvec))
11609 s = ppc64_elf_tdata (dynobj)->got;
11612 && s->output_section != bfd_abs_section_ptr
11613 && !bfd_set_section_contents (output_bfd, s->output_section,
11614 s->contents, s->output_offset,
11617 s = ppc64_elf_tdata (dynobj)->relgot;
11620 && s->output_section != bfd_abs_section_ptr
11621 && !bfd_set_section_contents (output_bfd, s->output_section,
11622 s->contents, s->output_offset,
11630 #include "elf64-target.h"