1 /* PowerPC64-specific support for 64-bit ELF.
2 Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
4 based on elf32-ppc.c by Ian Lance Taylor.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22 /* The 64-bit PowerPC ELF ABI may be found at
23 http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and
24 http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */
31 #include "elf/ppc64.h"
32 #include "elf64-ppc.h"
34 static bfd_reloc_status_type ppc64_elf_ha_reloc
35 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
36 static bfd_reloc_status_type ppc64_elf_brtaken_reloc
37 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
38 static bfd_reloc_status_type ppc64_elf_sectoff_reloc
39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
40 static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
41 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
42 static bfd_reloc_status_type ppc64_elf_toc_reloc
43 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
44 static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
45 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
46 static bfd_reloc_status_type ppc64_elf_toc64_reloc
47 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
48 static bfd_reloc_status_type ppc64_elf_unhandled_reloc
49 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
52 #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
53 #define TARGET_LITTLE_NAME "elf64-powerpcle"
54 #define TARGET_BIG_SYM bfd_elf64_powerpc_vec
55 #define TARGET_BIG_NAME "elf64-powerpc"
56 #define ELF_ARCH bfd_arch_powerpc
57 #define ELF_MACHINE_CODE EM_PPC64
58 #define ELF_MAXPAGESIZE 0x10000
59 #define elf_info_to_howto ppc64_elf_info_to_howto
61 #define elf_backend_want_got_sym 0
62 #define elf_backend_want_plt_sym 0
63 #define elf_backend_plt_alignment 3
64 #define elf_backend_plt_not_loaded 1
65 #define elf_backend_got_symbol_offset 0
66 #define elf_backend_got_header_size 8
67 #define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE
68 #define elf_backend_can_gc_sections 1
69 #define elf_backend_can_refcount 1
70 #define elf_backend_rela_normal 1
72 #define bfd_elf64_mkobject ppc64_elf_mkobject
73 #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
74 #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
75 #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
76 #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
77 #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
79 #define elf_backend_object_p ppc64_elf_object_p
80 #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
81 #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
82 #define elf_backend_check_relocs ppc64_elf_check_relocs
83 #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
84 #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
85 #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
86 #define elf_backend_hide_symbol ppc64_elf_hide_symbol
87 #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
88 #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
89 #define elf_backend_relocate_section ppc64_elf_relocate_section
90 #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
91 #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
92 #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
93 #define elf_backend_special_sections ppc64_elf_special_sections
95 /* The name of the dynamic interpreter. This is put in the .interp
97 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
99 /* The size in bytes of an entry in the procedure linkage table. */
100 #define PLT_ENTRY_SIZE 24
102 /* The initial size of the plt reserved for the dynamic linker. */
103 #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
105 /* TOC base pointers offset from start of TOC. */
106 #define TOC_BASE_OFF 0x8000
108 /* Offset of tp and dtp pointers from start of TLS block. */
109 #define TP_OFFSET 0x7000
110 #define DTP_OFFSET 0x8000
112 /* .plt call stub instructions. The normal stub is like this, but
113 sometimes the .plt entry crosses a 64k boundary and we need to
114 insert an addis to adjust r12. */
115 #define PLT_CALL_STUB_SIZE (7*4)
116 #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
117 #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
118 #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
119 #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
120 #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
121 /* ld %r11,xxx+16@l(%r12) */
122 #define BCTR 0x4e800420 /* bctr */
125 #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
126 #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
128 #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
130 /* glink call stub instructions. We enter with the index in R0, and the
131 address of glink entry in CTR. From that, we can calculate PLT0. */
132 #define GLINK_CALL_STUB_SIZE (16*4)
133 #define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */
134 #define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */
135 #define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */
136 #define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */
137 #define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */
138 #define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */
139 #define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */
140 /* sub %r12,%r12,%r11 */
141 #define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */
142 #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
143 /* ld %r11,xxx@l(%r12) */
144 #define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */
147 /* ld %r11,16(%r12) */
151 #define NOP 0x60000000
153 /* Some other nops. */
154 #define CROR_151515 0x4def7b82
155 #define CROR_313131 0x4ffffb82
157 /* .glink entries for the first 32k functions are two instructions. */
158 #define LI_R0_0 0x38000000 /* li %r0,0 */
159 #define B_DOT 0x48000000 /* b . */
161 /* After that, we need two instructions to load the index, followed by
163 #define LIS_R0_0 0x3c000000 /* lis %r0,0 */
164 #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
166 /* Instructions to save and restore floating point regs. */
167 #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
168 #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
169 #define BLR 0x4e800020 /* blr */
171 /* Since .opd is an array of descriptors and each entry will end up
172 with identical R_PPC64_RELATIVE relocs, there is really no need to
173 propagate .opd relocs; The dynamic linker should be taught to
174 relocate .opd without reloc entries. */
175 #ifndef NO_OPD_RELOCS
176 #define NO_OPD_RELOCS 0
179 #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
181 /* Relocation HOWTO's. */
182 static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
184 static reloc_howto_type ppc64_elf_howto_raw[] = {
185 /* This reloc does nothing. */
186 HOWTO (R_PPC64_NONE, /* type */
188 2, /* size (0 = byte, 1 = short, 2 = long) */
190 FALSE, /* pc_relative */
192 complain_overflow_dont, /* complain_on_overflow */
193 bfd_elf_generic_reloc, /* special_function */
194 "R_PPC64_NONE", /* name */
195 FALSE, /* partial_inplace */
198 FALSE), /* pcrel_offset */
200 /* A standard 32 bit relocation. */
201 HOWTO (R_PPC64_ADDR32, /* type */
203 2, /* size (0 = byte, 1 = short, 2 = long) */
205 FALSE, /* pc_relative */
207 complain_overflow_bitfield, /* complain_on_overflow */
208 bfd_elf_generic_reloc, /* special_function */
209 "R_PPC64_ADDR32", /* name */
210 FALSE, /* partial_inplace */
212 0xffffffff, /* dst_mask */
213 FALSE), /* pcrel_offset */
215 /* An absolute 26 bit branch; the lower two bits must be zero.
216 FIXME: we don't check that, we just clear them. */
217 HOWTO (R_PPC64_ADDR24, /* type */
219 2, /* size (0 = byte, 1 = short, 2 = long) */
221 FALSE, /* pc_relative */
223 complain_overflow_bitfield, /* complain_on_overflow */
224 bfd_elf_generic_reloc, /* special_function */
225 "R_PPC64_ADDR24", /* name */
226 FALSE, /* partial_inplace */
228 0x03fffffc, /* dst_mask */
229 FALSE), /* pcrel_offset */
231 /* A standard 16 bit relocation. */
232 HOWTO (R_PPC64_ADDR16, /* type */
234 1, /* 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_ADDR16", /* name */
241 FALSE, /* partial_inplace */
243 0xffff, /* dst_mask */
244 FALSE), /* pcrel_offset */
246 /* A 16 bit relocation without overflow. */
247 HOWTO (R_PPC64_ADDR16_LO, /* type */
249 1, /* size (0 = byte, 1 = short, 2 = long) */
251 FALSE, /* pc_relative */
253 complain_overflow_dont,/* complain_on_overflow */
254 bfd_elf_generic_reloc, /* special_function */
255 "R_PPC64_ADDR16_LO", /* name */
256 FALSE, /* partial_inplace */
258 0xffff, /* dst_mask */
259 FALSE), /* pcrel_offset */
261 /* Bits 16-31 of an address. */
262 HOWTO (R_PPC64_ADDR16_HI, /* type */
264 1, /* size (0 = byte, 1 = short, 2 = long) */
266 FALSE, /* pc_relative */
268 complain_overflow_dont, /* complain_on_overflow */
269 bfd_elf_generic_reloc, /* special_function */
270 "R_PPC64_ADDR16_HI", /* name */
271 FALSE, /* partial_inplace */
273 0xffff, /* dst_mask */
274 FALSE), /* pcrel_offset */
276 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
277 bits, treated as a signed number, is negative. */
278 HOWTO (R_PPC64_ADDR16_HA, /* type */
280 1, /* size (0 = byte, 1 = short, 2 = long) */
282 FALSE, /* pc_relative */
284 complain_overflow_dont, /* complain_on_overflow */
285 ppc64_elf_ha_reloc, /* special_function */
286 "R_PPC64_ADDR16_HA", /* name */
287 FALSE, /* partial_inplace */
289 0xffff, /* dst_mask */
290 FALSE), /* pcrel_offset */
292 /* An absolute 16 bit branch; the lower two bits must be zero.
293 FIXME: we don't check that, we just clear them. */
294 HOWTO (R_PPC64_ADDR14, /* type */
296 2, /* size (0 = byte, 1 = short, 2 = long) */
298 FALSE, /* pc_relative */
300 complain_overflow_bitfield, /* complain_on_overflow */
301 bfd_elf_generic_reloc, /* special_function */
302 "R_PPC64_ADDR14", /* name */
303 FALSE, /* partial_inplace */
305 0x0000fffc, /* dst_mask */
306 FALSE), /* pcrel_offset */
308 /* An absolute 16 bit branch, for which bit 10 should be set to
309 indicate that the branch is expected to be taken. The lower two
310 bits must be zero. */
311 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
313 2, /* size (0 = byte, 1 = short, 2 = long) */
315 FALSE, /* pc_relative */
317 complain_overflow_bitfield, /* complain_on_overflow */
318 ppc64_elf_brtaken_reloc, /* special_function */
319 "R_PPC64_ADDR14_BRTAKEN",/* name */
320 FALSE, /* partial_inplace */
322 0x0000fffc, /* dst_mask */
323 FALSE), /* pcrel_offset */
325 /* An absolute 16 bit branch, for which bit 10 should be set to
326 indicate that the branch is not expected to be taken. The lower
327 two bits must be zero. */
328 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
330 2, /* size (0 = byte, 1 = short, 2 = long) */
332 FALSE, /* pc_relative */
334 complain_overflow_bitfield, /* complain_on_overflow */
335 ppc64_elf_brtaken_reloc, /* special_function */
336 "R_PPC64_ADDR14_BRNTAKEN",/* name */
337 FALSE, /* partial_inplace */
339 0x0000fffc, /* dst_mask */
340 FALSE), /* pcrel_offset */
342 /* A relative 26 bit branch; the lower two bits must be zero. */
343 HOWTO (R_PPC64_REL24, /* type */
345 2, /* size (0 = byte, 1 = short, 2 = long) */
347 TRUE, /* pc_relative */
349 complain_overflow_signed, /* complain_on_overflow */
350 bfd_elf_generic_reloc, /* special_function */
351 "R_PPC64_REL24", /* name */
352 FALSE, /* partial_inplace */
354 0x03fffffc, /* dst_mask */
355 TRUE), /* pcrel_offset */
357 /* A relative 16 bit branch; the lower two bits must be zero. */
358 HOWTO (R_PPC64_REL14, /* type */
360 2, /* size (0 = byte, 1 = short, 2 = long) */
362 TRUE, /* pc_relative */
364 complain_overflow_signed, /* complain_on_overflow */
365 bfd_elf_generic_reloc, /* special_function */
366 "R_PPC64_REL14", /* name */
367 FALSE, /* partial_inplace */
369 0x0000fffc, /* dst_mask */
370 TRUE), /* pcrel_offset */
372 /* A relative 16 bit branch. Bit 10 should be set to indicate that
373 the branch is expected to be taken. The lower two bits must be
375 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
377 2, /* size (0 = byte, 1 = short, 2 = long) */
379 TRUE, /* pc_relative */
381 complain_overflow_signed, /* complain_on_overflow */
382 ppc64_elf_brtaken_reloc, /* special_function */
383 "R_PPC64_REL14_BRTAKEN", /* name */
384 FALSE, /* partial_inplace */
386 0x0000fffc, /* dst_mask */
387 TRUE), /* pcrel_offset */
389 /* A relative 16 bit branch. Bit 10 should be set to indicate that
390 the branch is not expected to be taken. The lower two bits must
392 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
394 2, /* size (0 = byte, 1 = short, 2 = long) */
396 TRUE, /* pc_relative */
398 complain_overflow_signed, /* complain_on_overflow */
399 ppc64_elf_brtaken_reloc, /* special_function */
400 "R_PPC64_REL14_BRNTAKEN",/* name */
401 FALSE, /* partial_inplace */
403 0x0000fffc, /* dst_mask */
404 TRUE), /* pcrel_offset */
406 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
408 HOWTO (R_PPC64_GOT16, /* type */
410 1, /* size (0 = byte, 1 = short, 2 = long) */
412 FALSE, /* pc_relative */
414 complain_overflow_signed, /* complain_on_overflow */
415 ppc64_elf_unhandled_reloc, /* special_function */
416 "R_PPC64_GOT16", /* name */
417 FALSE, /* partial_inplace */
419 0xffff, /* dst_mask */
420 FALSE), /* pcrel_offset */
422 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
424 HOWTO (R_PPC64_GOT16_LO, /* type */
426 1, /* size (0 = byte, 1 = short, 2 = long) */
428 FALSE, /* pc_relative */
430 complain_overflow_dont, /* complain_on_overflow */
431 ppc64_elf_unhandled_reloc, /* special_function */
432 "R_PPC64_GOT16_LO", /* name */
433 FALSE, /* partial_inplace */
435 0xffff, /* dst_mask */
436 FALSE), /* pcrel_offset */
438 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
440 HOWTO (R_PPC64_GOT16_HI, /* type */
442 1, /* size (0 = byte, 1 = short, 2 = long) */
444 FALSE, /* pc_relative */
446 complain_overflow_dont,/* complain_on_overflow */
447 ppc64_elf_unhandled_reloc, /* special_function */
448 "R_PPC64_GOT16_HI", /* name */
449 FALSE, /* partial_inplace */
451 0xffff, /* dst_mask */
452 FALSE), /* pcrel_offset */
454 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
456 HOWTO (R_PPC64_GOT16_HA, /* type */
458 1, /* size (0 = byte, 1 = short, 2 = long) */
460 FALSE, /* pc_relative */
462 complain_overflow_dont,/* complain_on_overflow */
463 ppc64_elf_unhandled_reloc, /* special_function */
464 "R_PPC64_GOT16_HA", /* name */
465 FALSE, /* partial_inplace */
467 0xffff, /* dst_mask */
468 FALSE), /* pcrel_offset */
470 /* This is used only by the dynamic linker. The symbol should exist
471 both in the object being run and in some shared library. The
472 dynamic linker copies the data addressed by the symbol from the
473 shared library into the object, because the object being
474 run has to have the data at some particular address. */
475 HOWTO (R_PPC64_COPY, /* type */
477 0, /* this one is variable size */
479 FALSE, /* pc_relative */
481 complain_overflow_dont, /* complain_on_overflow */
482 ppc64_elf_unhandled_reloc, /* special_function */
483 "R_PPC64_COPY", /* name */
484 FALSE, /* partial_inplace */
487 FALSE), /* pcrel_offset */
489 /* Like R_PPC64_ADDR64, but used when setting global offset table
491 HOWTO (R_PPC64_GLOB_DAT, /* type */
493 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
495 FALSE, /* pc_relative */
497 complain_overflow_dont, /* complain_on_overflow */
498 ppc64_elf_unhandled_reloc, /* special_function */
499 "R_PPC64_GLOB_DAT", /* name */
500 FALSE, /* partial_inplace */
502 ONES (64), /* dst_mask */
503 FALSE), /* pcrel_offset */
505 /* Created by the link editor. Marks a procedure linkage table
506 entry for a symbol. */
507 HOWTO (R_PPC64_JMP_SLOT, /* type */
509 0, /* size (0 = byte, 1 = short, 2 = long) */
511 FALSE, /* pc_relative */
513 complain_overflow_dont, /* complain_on_overflow */
514 ppc64_elf_unhandled_reloc, /* special_function */
515 "R_PPC64_JMP_SLOT", /* name */
516 FALSE, /* partial_inplace */
519 FALSE), /* pcrel_offset */
521 /* Used only by the dynamic linker. When the object is run, this
522 doubleword64 is set to the load address of the object, plus the
524 HOWTO (R_PPC64_RELATIVE, /* type */
526 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
528 FALSE, /* pc_relative */
530 complain_overflow_dont, /* complain_on_overflow */
531 bfd_elf_generic_reloc, /* special_function */
532 "R_PPC64_RELATIVE", /* name */
533 FALSE, /* partial_inplace */
535 ONES (64), /* dst_mask */
536 FALSE), /* pcrel_offset */
538 /* Like R_PPC64_ADDR32, but may be unaligned. */
539 HOWTO (R_PPC64_UADDR32, /* type */
541 2, /* size (0 = byte, 1 = short, 2 = long) */
543 FALSE, /* pc_relative */
545 complain_overflow_bitfield, /* complain_on_overflow */
546 bfd_elf_generic_reloc, /* special_function */
547 "R_PPC64_UADDR32", /* name */
548 FALSE, /* partial_inplace */
550 0xffffffff, /* dst_mask */
551 FALSE), /* pcrel_offset */
553 /* Like R_PPC64_ADDR16, but may be unaligned. */
554 HOWTO (R_PPC64_UADDR16, /* type */
556 1, /* size (0 = byte, 1 = short, 2 = long) */
558 FALSE, /* pc_relative */
560 complain_overflow_bitfield, /* complain_on_overflow */
561 bfd_elf_generic_reloc, /* special_function */
562 "R_PPC64_UADDR16", /* name */
563 FALSE, /* partial_inplace */
565 0xffff, /* dst_mask */
566 FALSE), /* pcrel_offset */
568 /* 32-bit PC relative. */
569 HOWTO (R_PPC64_REL32, /* type */
571 2, /* size (0 = byte, 1 = short, 2 = long) */
573 TRUE, /* pc_relative */
575 /* FIXME: Verify. Was complain_overflow_bitfield. */
576 complain_overflow_signed, /* complain_on_overflow */
577 bfd_elf_generic_reloc, /* special_function */
578 "R_PPC64_REL32", /* name */
579 FALSE, /* partial_inplace */
581 0xffffffff, /* dst_mask */
582 TRUE), /* pcrel_offset */
584 /* 32-bit relocation to the symbol's procedure linkage table. */
585 HOWTO (R_PPC64_PLT32, /* type */
587 2, /* size (0 = byte, 1 = short, 2 = long) */
589 FALSE, /* pc_relative */
591 complain_overflow_bitfield, /* complain_on_overflow */
592 ppc64_elf_unhandled_reloc, /* special_function */
593 "R_PPC64_PLT32", /* name */
594 FALSE, /* partial_inplace */
596 0xffffffff, /* dst_mask */
597 FALSE), /* pcrel_offset */
599 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
600 FIXME: R_PPC64_PLTREL32 not supported. */
601 HOWTO (R_PPC64_PLTREL32, /* type */
603 2, /* size (0 = byte, 1 = short, 2 = long) */
605 TRUE, /* pc_relative */
607 complain_overflow_signed, /* complain_on_overflow */
608 bfd_elf_generic_reloc, /* special_function */
609 "R_PPC64_PLTREL32", /* name */
610 FALSE, /* partial_inplace */
612 0xffffffff, /* dst_mask */
613 TRUE), /* pcrel_offset */
615 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
617 HOWTO (R_PPC64_PLT16_LO, /* type */
619 1, /* size (0 = byte, 1 = short, 2 = long) */
621 FALSE, /* pc_relative */
623 complain_overflow_dont, /* complain_on_overflow */
624 ppc64_elf_unhandled_reloc, /* special_function */
625 "R_PPC64_PLT16_LO", /* name */
626 FALSE, /* partial_inplace */
628 0xffff, /* dst_mask */
629 FALSE), /* pcrel_offset */
631 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
633 HOWTO (R_PPC64_PLT16_HI, /* type */
635 1, /* size (0 = byte, 1 = short, 2 = long) */
637 FALSE, /* pc_relative */
639 complain_overflow_dont, /* complain_on_overflow */
640 ppc64_elf_unhandled_reloc, /* special_function */
641 "R_PPC64_PLT16_HI", /* name */
642 FALSE, /* partial_inplace */
644 0xffff, /* dst_mask */
645 FALSE), /* pcrel_offset */
647 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
649 HOWTO (R_PPC64_PLT16_HA, /* type */
651 1, /* size (0 = byte, 1 = short, 2 = long) */
653 FALSE, /* pc_relative */
655 complain_overflow_dont, /* complain_on_overflow */
656 ppc64_elf_unhandled_reloc, /* special_function */
657 "R_PPC64_PLT16_HA", /* name */
658 FALSE, /* partial_inplace */
660 0xffff, /* dst_mask */
661 FALSE), /* pcrel_offset */
663 /* 16-bit section relative relocation. */
664 HOWTO (R_PPC64_SECTOFF, /* type */
666 1, /* size (0 = byte, 1 = short, 2 = long) */
668 FALSE, /* pc_relative */
670 complain_overflow_bitfield, /* complain_on_overflow */
671 ppc64_elf_sectoff_reloc, /* special_function */
672 "R_PPC64_SECTOFF", /* name */
673 FALSE, /* partial_inplace */
675 0xffff, /* dst_mask */
676 FALSE), /* pcrel_offset */
678 /* Like R_PPC64_SECTOFF, but no overflow warning. */
679 HOWTO (R_PPC64_SECTOFF_LO, /* type */
681 1, /* size (0 = byte, 1 = short, 2 = long) */
683 FALSE, /* pc_relative */
685 complain_overflow_dont, /* complain_on_overflow */
686 ppc64_elf_sectoff_reloc, /* special_function */
687 "R_PPC64_SECTOFF_LO", /* name */
688 FALSE, /* partial_inplace */
690 0xffff, /* dst_mask */
691 FALSE), /* pcrel_offset */
693 /* 16-bit upper half section relative relocation. */
694 HOWTO (R_PPC64_SECTOFF_HI, /* type */
696 1, /* size (0 = byte, 1 = short, 2 = long) */
698 FALSE, /* pc_relative */
700 complain_overflow_dont, /* complain_on_overflow */
701 ppc64_elf_sectoff_reloc, /* special_function */
702 "R_PPC64_SECTOFF_HI", /* name */
703 FALSE, /* partial_inplace */
705 0xffff, /* dst_mask */
706 FALSE), /* pcrel_offset */
708 /* 16-bit upper half adjusted section relative relocation. */
709 HOWTO (R_PPC64_SECTOFF_HA, /* type */
711 1, /* size (0 = byte, 1 = short, 2 = long) */
713 FALSE, /* pc_relative */
715 complain_overflow_dont, /* complain_on_overflow */
716 ppc64_elf_sectoff_ha_reloc, /* special_function */
717 "R_PPC64_SECTOFF_HA", /* name */
718 FALSE, /* partial_inplace */
720 0xffff, /* dst_mask */
721 FALSE), /* pcrel_offset */
723 /* Like R_PPC64_REL24 without touching the two least significant bits. */
724 HOWTO (R_PPC64_REL30, /* type */
726 2, /* size (0 = byte, 1 = short, 2 = long) */
728 TRUE, /* pc_relative */
730 complain_overflow_dont, /* complain_on_overflow */
731 bfd_elf_generic_reloc, /* special_function */
732 "R_PPC64_REL30", /* name */
733 FALSE, /* partial_inplace */
735 0xfffffffc, /* dst_mask */
736 TRUE), /* pcrel_offset */
738 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
740 /* A standard 64-bit relocation. */
741 HOWTO (R_PPC64_ADDR64, /* type */
743 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
745 FALSE, /* pc_relative */
747 complain_overflow_dont, /* complain_on_overflow */
748 bfd_elf_generic_reloc, /* special_function */
749 "R_PPC64_ADDR64", /* name */
750 FALSE, /* partial_inplace */
752 ONES (64), /* dst_mask */
753 FALSE), /* pcrel_offset */
755 /* The bits 32-47 of an address. */
756 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
758 1, /* size (0 = byte, 1 = short, 2 = long) */
760 FALSE, /* pc_relative */
762 complain_overflow_dont, /* complain_on_overflow */
763 bfd_elf_generic_reloc, /* special_function */
764 "R_PPC64_ADDR16_HIGHER", /* name */
765 FALSE, /* partial_inplace */
767 0xffff, /* dst_mask */
768 FALSE), /* pcrel_offset */
770 /* The bits 32-47 of an address, plus 1 if the contents of the low
771 16 bits, treated as a signed number, is negative. */
772 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
774 1, /* size (0 = byte, 1 = short, 2 = long) */
776 FALSE, /* pc_relative */
778 complain_overflow_dont, /* complain_on_overflow */
779 ppc64_elf_ha_reloc, /* special_function */
780 "R_PPC64_ADDR16_HIGHERA", /* name */
781 FALSE, /* partial_inplace */
783 0xffff, /* dst_mask */
784 FALSE), /* pcrel_offset */
786 /* The bits 48-63 of an address. */
787 HOWTO (R_PPC64_ADDR16_HIGHEST,/* 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_HIGHEST", /* name */
796 FALSE, /* partial_inplace */
798 0xffff, /* dst_mask */
799 FALSE), /* pcrel_offset */
801 /* The bits 48-63 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_HIGHESTA,/* 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_HIGHESTA", /* name */
812 FALSE, /* partial_inplace */
814 0xffff, /* dst_mask */
815 FALSE), /* pcrel_offset */
817 /* Like ADDR64, but may be unaligned. */
818 HOWTO (R_PPC64_UADDR64, /* type */
820 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
822 FALSE, /* pc_relative */
824 complain_overflow_dont, /* complain_on_overflow */
825 bfd_elf_generic_reloc, /* special_function */
826 "R_PPC64_UADDR64", /* name */
827 FALSE, /* partial_inplace */
829 ONES (64), /* dst_mask */
830 FALSE), /* pcrel_offset */
832 /* 64-bit relative relocation. */
833 HOWTO (R_PPC64_REL64, /* type */
835 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
837 TRUE, /* pc_relative */
839 complain_overflow_dont, /* complain_on_overflow */
840 bfd_elf_generic_reloc, /* special_function */
841 "R_PPC64_REL64", /* name */
842 FALSE, /* partial_inplace */
844 ONES (64), /* dst_mask */
845 TRUE), /* pcrel_offset */
847 /* 64-bit relocation to the symbol's procedure linkage table. */
848 HOWTO (R_PPC64_PLT64, /* type */
850 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
852 FALSE, /* pc_relative */
854 complain_overflow_dont, /* complain_on_overflow */
855 ppc64_elf_unhandled_reloc, /* special_function */
856 "R_PPC64_PLT64", /* name */
857 FALSE, /* partial_inplace */
859 ONES (64), /* dst_mask */
860 FALSE), /* pcrel_offset */
862 /* 64-bit PC relative relocation to the symbol's procedure linkage
864 /* FIXME: R_PPC64_PLTREL64 not supported. */
865 HOWTO (R_PPC64_PLTREL64, /* type */
867 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
869 TRUE, /* pc_relative */
871 complain_overflow_dont, /* complain_on_overflow */
872 ppc64_elf_unhandled_reloc, /* special_function */
873 "R_PPC64_PLTREL64", /* name */
874 FALSE, /* partial_inplace */
876 ONES (64), /* dst_mask */
877 TRUE), /* pcrel_offset */
879 /* 16 bit TOC-relative relocation. */
881 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
882 HOWTO (R_PPC64_TOC16, /* type */
884 1, /* size (0 = byte, 1 = short, 2 = long) */
886 FALSE, /* pc_relative */
888 complain_overflow_signed, /* complain_on_overflow */
889 ppc64_elf_toc_reloc, /* special_function */
890 "R_PPC64_TOC16", /* name */
891 FALSE, /* partial_inplace */
893 0xffff, /* dst_mask */
894 FALSE), /* pcrel_offset */
896 /* 16 bit TOC-relative relocation without overflow. */
898 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
899 HOWTO (R_PPC64_TOC16_LO, /* type */
901 1, /* size (0 = byte, 1 = short, 2 = long) */
903 FALSE, /* pc_relative */
905 complain_overflow_dont, /* complain_on_overflow */
906 ppc64_elf_toc_reloc, /* special_function */
907 "R_PPC64_TOC16_LO", /* name */
908 FALSE, /* partial_inplace */
910 0xffff, /* dst_mask */
911 FALSE), /* pcrel_offset */
913 /* 16 bit TOC-relative relocation, high 16 bits. */
915 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
916 HOWTO (R_PPC64_TOC16_HI, /* type */
918 1, /* size (0 = byte, 1 = short, 2 = long) */
920 FALSE, /* pc_relative */
922 complain_overflow_dont, /* complain_on_overflow */
923 ppc64_elf_toc_reloc, /* special_function */
924 "R_PPC64_TOC16_HI", /* name */
925 FALSE, /* partial_inplace */
927 0xffff, /* dst_mask */
928 FALSE), /* pcrel_offset */
930 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
931 contents of the low 16 bits, treated as a signed number, is
934 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
935 HOWTO (R_PPC64_TOC16_HA, /* type */
937 1, /* size (0 = byte, 1 = short, 2 = long) */
939 FALSE, /* pc_relative */
941 complain_overflow_dont, /* complain_on_overflow */
942 ppc64_elf_toc_ha_reloc, /* special_function */
943 "R_PPC64_TOC16_HA", /* name */
944 FALSE, /* partial_inplace */
946 0xffff, /* dst_mask */
947 FALSE), /* pcrel_offset */
949 /* 64-bit relocation; insert value of TOC base (.TOC.). */
951 /* R_PPC64_TOC 51 doubleword64 .TOC. */
952 HOWTO (R_PPC64_TOC, /* type */
954 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
956 FALSE, /* pc_relative */
958 complain_overflow_bitfield, /* complain_on_overflow */
959 ppc64_elf_toc64_reloc, /* special_function */
960 "R_PPC64_TOC", /* name */
961 FALSE, /* partial_inplace */
963 ONES (64), /* dst_mask */
964 FALSE), /* pcrel_offset */
966 /* Like R_PPC64_GOT16, but also informs the link editor that the
967 value to relocate may (!) refer to a PLT entry which the link
968 editor (a) may replace with the symbol value. If the link editor
969 is unable to fully resolve the symbol, it may (b) create a PLT
970 entry and store the address to the new PLT entry in the GOT.
971 This permits lazy resolution of function symbols at run time.
972 The link editor may also skip all of this and just (c) emit a
973 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
974 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
975 HOWTO (R_PPC64_PLTGOT16, /* type */
977 1, /* size (0 = byte, 1 = short, 2 = long) */
979 FALSE, /* pc_relative */
981 complain_overflow_signed, /* complain_on_overflow */
982 ppc64_elf_unhandled_reloc, /* special_function */
983 "R_PPC64_PLTGOT16", /* name */
984 FALSE, /* partial_inplace */
986 0xffff, /* dst_mask */
987 FALSE), /* pcrel_offset */
989 /* Like R_PPC64_PLTGOT16, but without overflow. */
990 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
991 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
993 1, /* size (0 = byte, 1 = short, 2 = long) */
995 FALSE, /* pc_relative */
997 complain_overflow_dont, /* complain_on_overflow */
998 ppc64_elf_unhandled_reloc, /* special_function */
999 "R_PPC64_PLTGOT16_LO", /* name */
1000 FALSE, /* partial_inplace */
1002 0xffff, /* dst_mask */
1003 FALSE), /* pcrel_offset */
1005 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1006 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1007 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1008 16, /* rightshift */
1009 1, /* size (0 = byte, 1 = short, 2 = long) */
1011 FALSE, /* pc_relative */
1013 complain_overflow_dont, /* complain_on_overflow */
1014 ppc64_elf_unhandled_reloc, /* special_function */
1015 "R_PPC64_PLTGOT16_HI", /* name */
1016 FALSE, /* partial_inplace */
1018 0xffff, /* dst_mask */
1019 FALSE), /* pcrel_offset */
1021 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1022 1 if the contents of the low 16 bits, treated as a signed number,
1024 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1025 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1026 16, /* rightshift */
1027 1, /* size (0 = byte, 1 = short, 2 = long) */
1029 FALSE, /* pc_relative */
1031 complain_overflow_dont,/* complain_on_overflow */
1032 ppc64_elf_unhandled_reloc, /* special_function */
1033 "R_PPC64_PLTGOT16_HA", /* name */
1034 FALSE, /* partial_inplace */
1036 0xffff, /* dst_mask */
1037 FALSE), /* pcrel_offset */
1039 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1040 HOWTO (R_PPC64_ADDR16_DS, /* type */
1042 1, /* size (0 = byte, 1 = short, 2 = long) */
1044 FALSE, /* pc_relative */
1046 complain_overflow_bitfield, /* complain_on_overflow */
1047 bfd_elf_generic_reloc, /* special_function */
1048 "R_PPC64_ADDR16_DS", /* name */
1049 FALSE, /* partial_inplace */
1051 0xfffc, /* dst_mask */
1052 FALSE), /* pcrel_offset */
1054 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1055 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1057 1, /* size (0 = byte, 1 = short, 2 = long) */
1059 FALSE, /* pc_relative */
1061 complain_overflow_dont,/* complain_on_overflow */
1062 bfd_elf_generic_reloc, /* special_function */
1063 "R_PPC64_ADDR16_LO_DS",/* name */
1064 FALSE, /* partial_inplace */
1066 0xfffc, /* dst_mask */
1067 FALSE), /* pcrel_offset */
1069 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1070 HOWTO (R_PPC64_GOT16_DS, /* type */
1072 1, /* size (0 = byte, 1 = short, 2 = long) */
1074 FALSE, /* pc_relative */
1076 complain_overflow_signed, /* complain_on_overflow */
1077 ppc64_elf_unhandled_reloc, /* special_function */
1078 "R_PPC64_GOT16_DS", /* name */
1079 FALSE, /* partial_inplace */
1081 0xfffc, /* dst_mask */
1082 FALSE), /* pcrel_offset */
1084 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1085 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1087 1, /* size (0 = byte, 1 = short, 2 = long) */
1089 FALSE, /* pc_relative */
1091 complain_overflow_dont, /* complain_on_overflow */
1092 ppc64_elf_unhandled_reloc, /* special_function */
1093 "R_PPC64_GOT16_LO_DS", /* name */
1094 FALSE, /* partial_inplace */
1096 0xfffc, /* dst_mask */
1097 FALSE), /* pcrel_offset */
1099 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1100 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1102 1, /* size (0 = byte, 1 = short, 2 = long) */
1104 FALSE, /* pc_relative */
1106 complain_overflow_dont, /* complain_on_overflow */
1107 ppc64_elf_unhandled_reloc, /* special_function */
1108 "R_PPC64_PLT16_LO_DS", /* name */
1109 FALSE, /* partial_inplace */
1111 0xfffc, /* dst_mask */
1112 FALSE), /* pcrel_offset */
1114 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1115 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1117 1, /* size (0 = byte, 1 = short, 2 = long) */
1119 FALSE, /* pc_relative */
1121 complain_overflow_bitfield, /* complain_on_overflow */
1122 ppc64_elf_sectoff_reloc, /* special_function */
1123 "R_PPC64_SECTOFF_DS", /* name */
1124 FALSE, /* partial_inplace */
1126 0xfffc, /* dst_mask */
1127 FALSE), /* pcrel_offset */
1129 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1130 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1132 1, /* size (0 = byte, 1 = short, 2 = long) */
1134 FALSE, /* pc_relative */
1136 complain_overflow_dont, /* complain_on_overflow */
1137 ppc64_elf_sectoff_reloc, /* special_function */
1138 "R_PPC64_SECTOFF_LO_DS",/* name */
1139 FALSE, /* partial_inplace */
1141 0xfffc, /* dst_mask */
1142 FALSE), /* pcrel_offset */
1144 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1145 HOWTO (R_PPC64_TOC16_DS, /* type */
1147 1, /* size (0 = byte, 1 = short, 2 = long) */
1149 FALSE, /* pc_relative */
1151 complain_overflow_signed, /* complain_on_overflow */
1152 ppc64_elf_toc_reloc, /* special_function */
1153 "R_PPC64_TOC16_DS", /* name */
1154 FALSE, /* partial_inplace */
1156 0xfffc, /* dst_mask */
1157 FALSE), /* pcrel_offset */
1159 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1160 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1162 1, /* size (0 = byte, 1 = short, 2 = long) */
1164 FALSE, /* pc_relative */
1166 complain_overflow_dont, /* complain_on_overflow */
1167 ppc64_elf_toc_reloc, /* special_function */
1168 "R_PPC64_TOC16_LO_DS", /* name */
1169 FALSE, /* partial_inplace */
1171 0xfffc, /* dst_mask */
1172 FALSE), /* pcrel_offset */
1174 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1175 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1176 HOWTO (R_PPC64_PLTGOT16_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_unhandled_reloc, /* special_function */
1184 "R_PPC64_PLTGOT16_DS", /* name */
1185 FALSE, /* partial_inplace */
1187 0xfffc, /* dst_mask */
1188 FALSE), /* pcrel_offset */
1190 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1191 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1192 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1194 1, /* size (0 = byte, 1 = short, 2 = long) */
1196 FALSE, /* pc_relative */
1198 complain_overflow_dont, /* complain_on_overflow */
1199 ppc64_elf_unhandled_reloc, /* special_function */
1200 "R_PPC64_PLTGOT16_LO_DS",/* name */
1201 FALSE, /* partial_inplace */
1203 0xfffc, /* dst_mask */
1204 FALSE), /* pcrel_offset */
1206 /* Marker reloc for TLS. */
1209 2, /* size (0 = byte, 1 = short, 2 = long) */
1211 FALSE, /* pc_relative */
1213 complain_overflow_dont, /* complain_on_overflow */
1214 bfd_elf_generic_reloc, /* special_function */
1215 "R_PPC64_TLS", /* name */
1216 FALSE, /* partial_inplace */
1219 FALSE), /* pcrel_offset */
1221 /* Computes the load module index of the load module that contains the
1222 definition of its TLS sym. */
1223 HOWTO (R_PPC64_DTPMOD64,
1225 4, /* 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_DTPMOD64", /* name */
1232 FALSE, /* partial_inplace */
1234 ONES (64), /* dst_mask */
1235 FALSE), /* pcrel_offset */
1237 /* Computes a dtv-relative displacement, the difference between the value
1238 of sym+add and the base address of the thread-local storage block that
1239 contains the definition of sym, minus 0x8000. */
1240 HOWTO (R_PPC64_DTPREL64,
1242 4, /* size (0 = byte, 1 = short, 2 = long) */
1244 FALSE, /* pc_relative */
1246 complain_overflow_dont, /* complain_on_overflow */
1247 ppc64_elf_unhandled_reloc, /* special_function */
1248 "R_PPC64_DTPREL64", /* name */
1249 FALSE, /* partial_inplace */
1251 ONES (64), /* dst_mask */
1252 FALSE), /* pcrel_offset */
1254 /* A 16 bit dtprel reloc. */
1255 HOWTO (R_PPC64_DTPREL16,
1257 1, /* size (0 = byte, 1 = short, 2 = long) */
1259 FALSE, /* pc_relative */
1261 complain_overflow_signed, /* complain_on_overflow */
1262 ppc64_elf_unhandled_reloc, /* special_function */
1263 "R_PPC64_DTPREL16", /* name */
1264 FALSE, /* partial_inplace */
1266 0xffff, /* dst_mask */
1267 FALSE), /* pcrel_offset */
1269 /* Like DTPREL16, but no overflow. */
1270 HOWTO (R_PPC64_DTPREL16_LO,
1272 1, /* size (0 = byte, 1 = short, 2 = long) */
1274 FALSE, /* pc_relative */
1276 complain_overflow_dont, /* complain_on_overflow */
1277 ppc64_elf_unhandled_reloc, /* special_function */
1278 "R_PPC64_DTPREL16_LO", /* name */
1279 FALSE, /* partial_inplace */
1281 0xffff, /* dst_mask */
1282 FALSE), /* pcrel_offset */
1284 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1285 HOWTO (R_PPC64_DTPREL16_HI,
1286 16, /* rightshift */
1287 1, /* size (0 = byte, 1 = short, 2 = long) */
1289 FALSE, /* pc_relative */
1291 complain_overflow_dont, /* complain_on_overflow */
1292 ppc64_elf_unhandled_reloc, /* special_function */
1293 "R_PPC64_DTPREL16_HI", /* name */
1294 FALSE, /* partial_inplace */
1296 0xffff, /* dst_mask */
1297 FALSE), /* pcrel_offset */
1299 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1300 HOWTO (R_PPC64_DTPREL16_HA,
1301 16, /* rightshift */
1302 1, /* size (0 = byte, 1 = short, 2 = long) */
1304 FALSE, /* pc_relative */
1306 complain_overflow_dont, /* complain_on_overflow */
1307 ppc64_elf_unhandled_reloc, /* special_function */
1308 "R_PPC64_DTPREL16_HA", /* name */
1309 FALSE, /* partial_inplace */
1311 0xffff, /* dst_mask */
1312 FALSE), /* pcrel_offset */
1314 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1315 HOWTO (R_PPC64_DTPREL16_HIGHER,
1316 32, /* rightshift */
1317 1, /* size (0 = byte, 1 = short, 2 = long) */
1319 FALSE, /* pc_relative */
1321 complain_overflow_dont, /* complain_on_overflow */
1322 ppc64_elf_unhandled_reloc, /* special_function */
1323 "R_PPC64_DTPREL16_HIGHER", /* name */
1324 FALSE, /* partial_inplace */
1326 0xffff, /* dst_mask */
1327 FALSE), /* pcrel_offset */
1329 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1330 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1331 32, /* rightshift */
1332 1, /* size (0 = byte, 1 = short, 2 = long) */
1334 FALSE, /* pc_relative */
1336 complain_overflow_dont, /* complain_on_overflow */
1337 ppc64_elf_unhandled_reloc, /* special_function */
1338 "R_PPC64_DTPREL16_HIGHERA", /* name */
1339 FALSE, /* partial_inplace */
1341 0xffff, /* dst_mask */
1342 FALSE), /* pcrel_offset */
1344 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1345 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1346 48, /* rightshift */
1347 1, /* size (0 = byte, 1 = short, 2 = long) */
1349 FALSE, /* pc_relative */
1351 complain_overflow_dont, /* complain_on_overflow */
1352 ppc64_elf_unhandled_reloc, /* special_function */
1353 "R_PPC64_DTPREL16_HIGHEST", /* name */
1354 FALSE, /* partial_inplace */
1356 0xffff, /* dst_mask */
1357 FALSE), /* pcrel_offset */
1359 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1360 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1361 48, /* rightshift */
1362 1, /* size (0 = byte, 1 = short, 2 = long) */
1364 FALSE, /* pc_relative */
1366 complain_overflow_dont, /* complain_on_overflow */
1367 ppc64_elf_unhandled_reloc, /* special_function */
1368 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1369 FALSE, /* partial_inplace */
1371 0xffff, /* dst_mask */
1372 FALSE), /* pcrel_offset */
1374 /* Like DTPREL16, but for insns with a DS field. */
1375 HOWTO (R_PPC64_DTPREL16_DS,
1377 1, /* size (0 = byte, 1 = short, 2 = long) */
1379 FALSE, /* pc_relative */
1381 complain_overflow_signed, /* complain_on_overflow */
1382 ppc64_elf_unhandled_reloc, /* special_function */
1383 "R_PPC64_DTPREL16_DS", /* name */
1384 FALSE, /* partial_inplace */
1386 0xfffc, /* dst_mask */
1387 FALSE), /* pcrel_offset */
1389 /* Like DTPREL16_DS, but no overflow. */
1390 HOWTO (R_PPC64_DTPREL16_LO_DS,
1392 1, /* size (0 = byte, 1 = short, 2 = long) */
1394 FALSE, /* pc_relative */
1396 complain_overflow_dont, /* complain_on_overflow */
1397 ppc64_elf_unhandled_reloc, /* special_function */
1398 "R_PPC64_DTPREL16_LO_DS", /* name */
1399 FALSE, /* partial_inplace */
1401 0xfffc, /* dst_mask */
1402 FALSE), /* pcrel_offset */
1404 /* Computes a tp-relative displacement, the difference between the value of
1405 sym+add and the value of the thread pointer (r13). */
1406 HOWTO (R_PPC64_TPREL64,
1408 4, /* size (0 = byte, 1 = short, 2 = long) */
1410 FALSE, /* pc_relative */
1412 complain_overflow_dont, /* complain_on_overflow */
1413 ppc64_elf_unhandled_reloc, /* special_function */
1414 "R_PPC64_TPREL64", /* name */
1415 FALSE, /* partial_inplace */
1417 ONES (64), /* dst_mask */
1418 FALSE), /* pcrel_offset */
1420 /* A 16 bit tprel reloc. */
1421 HOWTO (R_PPC64_TPREL16,
1423 1, /* size (0 = byte, 1 = short, 2 = long) */
1425 FALSE, /* pc_relative */
1427 complain_overflow_signed, /* complain_on_overflow */
1428 ppc64_elf_unhandled_reloc, /* special_function */
1429 "R_PPC64_TPREL16", /* name */
1430 FALSE, /* partial_inplace */
1432 0xffff, /* dst_mask */
1433 FALSE), /* pcrel_offset */
1435 /* Like TPREL16, but no overflow. */
1436 HOWTO (R_PPC64_TPREL16_LO,
1438 1, /* size (0 = byte, 1 = short, 2 = long) */
1440 FALSE, /* pc_relative */
1442 complain_overflow_dont, /* complain_on_overflow */
1443 ppc64_elf_unhandled_reloc, /* special_function */
1444 "R_PPC64_TPREL16_LO", /* name */
1445 FALSE, /* partial_inplace */
1447 0xffff, /* dst_mask */
1448 FALSE), /* pcrel_offset */
1450 /* Like TPREL16_LO, but next higher group of 16 bits. */
1451 HOWTO (R_PPC64_TPREL16_HI,
1452 16, /* rightshift */
1453 1, /* size (0 = byte, 1 = short, 2 = long) */
1455 FALSE, /* pc_relative */
1457 complain_overflow_dont, /* complain_on_overflow */
1458 ppc64_elf_unhandled_reloc, /* special_function */
1459 "R_PPC64_TPREL16_HI", /* name */
1460 FALSE, /* partial_inplace */
1462 0xffff, /* dst_mask */
1463 FALSE), /* pcrel_offset */
1465 /* Like TPREL16_HI, but adjust for low 16 bits. */
1466 HOWTO (R_PPC64_TPREL16_HA,
1467 16, /* rightshift */
1468 1, /* size (0 = byte, 1 = short, 2 = long) */
1470 FALSE, /* pc_relative */
1472 complain_overflow_dont, /* complain_on_overflow */
1473 ppc64_elf_unhandled_reloc, /* special_function */
1474 "R_PPC64_TPREL16_HA", /* name */
1475 FALSE, /* partial_inplace */
1477 0xffff, /* dst_mask */
1478 FALSE), /* pcrel_offset */
1480 /* Like TPREL16_HI, but next higher group of 16 bits. */
1481 HOWTO (R_PPC64_TPREL16_HIGHER,
1482 32, /* rightshift */
1483 1, /* size (0 = byte, 1 = short, 2 = long) */
1485 FALSE, /* pc_relative */
1487 complain_overflow_dont, /* complain_on_overflow */
1488 ppc64_elf_unhandled_reloc, /* special_function */
1489 "R_PPC64_TPREL16_HIGHER", /* name */
1490 FALSE, /* partial_inplace */
1492 0xffff, /* dst_mask */
1493 FALSE), /* pcrel_offset */
1495 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1496 HOWTO (R_PPC64_TPREL16_HIGHERA,
1497 32, /* rightshift */
1498 1, /* size (0 = byte, 1 = short, 2 = long) */
1500 FALSE, /* pc_relative */
1502 complain_overflow_dont, /* complain_on_overflow */
1503 ppc64_elf_unhandled_reloc, /* special_function */
1504 "R_PPC64_TPREL16_HIGHERA", /* name */
1505 FALSE, /* partial_inplace */
1507 0xffff, /* dst_mask */
1508 FALSE), /* pcrel_offset */
1510 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1511 HOWTO (R_PPC64_TPREL16_HIGHEST,
1512 48, /* rightshift */
1513 1, /* size (0 = byte, 1 = short, 2 = long) */
1515 FALSE, /* pc_relative */
1517 complain_overflow_dont, /* complain_on_overflow */
1518 ppc64_elf_unhandled_reloc, /* special_function */
1519 "R_PPC64_TPREL16_HIGHEST", /* name */
1520 FALSE, /* partial_inplace */
1522 0xffff, /* dst_mask */
1523 FALSE), /* pcrel_offset */
1525 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1526 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1527 48, /* rightshift */
1528 1, /* size (0 = byte, 1 = short, 2 = long) */
1530 FALSE, /* pc_relative */
1532 complain_overflow_dont, /* complain_on_overflow */
1533 ppc64_elf_unhandled_reloc, /* special_function */
1534 "R_PPC64_TPREL16_HIGHESTA", /* name */
1535 FALSE, /* partial_inplace */
1537 0xffff, /* dst_mask */
1538 FALSE), /* pcrel_offset */
1540 /* Like TPREL16, but for insns with a DS field. */
1541 HOWTO (R_PPC64_TPREL16_DS,
1543 1, /* size (0 = byte, 1 = short, 2 = long) */
1545 FALSE, /* pc_relative */
1547 complain_overflow_signed, /* complain_on_overflow */
1548 ppc64_elf_unhandled_reloc, /* special_function */
1549 "R_PPC64_TPREL16_DS", /* name */
1550 FALSE, /* partial_inplace */
1552 0xfffc, /* dst_mask */
1553 FALSE), /* pcrel_offset */
1555 /* Like TPREL16_DS, but no overflow. */
1556 HOWTO (R_PPC64_TPREL16_LO_DS,
1558 1, /* size (0 = byte, 1 = short, 2 = long) */
1560 FALSE, /* pc_relative */
1562 complain_overflow_dont, /* complain_on_overflow */
1563 ppc64_elf_unhandled_reloc, /* special_function */
1564 "R_PPC64_TPREL16_LO_DS", /* name */
1565 FALSE, /* partial_inplace */
1567 0xfffc, /* dst_mask */
1568 FALSE), /* pcrel_offset */
1570 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1571 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1572 to the first entry relative to the TOC base (r2). */
1573 HOWTO (R_PPC64_GOT_TLSGD16,
1575 1, /* size (0 = byte, 1 = short, 2 = long) */
1577 FALSE, /* pc_relative */
1579 complain_overflow_signed, /* complain_on_overflow */
1580 ppc64_elf_unhandled_reloc, /* special_function */
1581 "R_PPC64_GOT_TLSGD16", /* name */
1582 FALSE, /* partial_inplace */
1584 0xffff, /* dst_mask */
1585 FALSE), /* pcrel_offset */
1587 /* Like GOT_TLSGD16, but no overflow. */
1588 HOWTO (R_PPC64_GOT_TLSGD16_LO,
1590 1, /* size (0 = byte, 1 = short, 2 = long) */
1592 FALSE, /* pc_relative */
1594 complain_overflow_dont, /* complain_on_overflow */
1595 ppc64_elf_unhandled_reloc, /* special_function */
1596 "R_PPC64_GOT_TLSGD16_LO", /* name */
1597 FALSE, /* partial_inplace */
1599 0xffff, /* dst_mask */
1600 FALSE), /* pcrel_offset */
1602 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1603 HOWTO (R_PPC64_GOT_TLSGD16_HI,
1604 16, /* rightshift */
1605 1, /* size (0 = byte, 1 = short, 2 = long) */
1607 FALSE, /* pc_relative */
1609 complain_overflow_dont, /* complain_on_overflow */
1610 ppc64_elf_unhandled_reloc, /* special_function */
1611 "R_PPC64_GOT_TLSGD16_HI", /* name */
1612 FALSE, /* partial_inplace */
1614 0xffff, /* dst_mask */
1615 FALSE), /* pcrel_offset */
1617 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1618 HOWTO (R_PPC64_GOT_TLSGD16_HA,
1619 16, /* rightshift */
1620 1, /* size (0 = byte, 1 = short, 2 = long) */
1622 FALSE, /* pc_relative */
1624 complain_overflow_dont, /* complain_on_overflow */
1625 ppc64_elf_unhandled_reloc, /* special_function */
1626 "R_PPC64_GOT_TLSGD16_HA", /* name */
1627 FALSE, /* partial_inplace */
1629 0xffff, /* dst_mask */
1630 FALSE), /* pcrel_offset */
1632 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1633 with values (sym+add)@dtpmod and zero, and computes the offset to the
1634 first entry relative to the TOC base (r2). */
1635 HOWTO (R_PPC64_GOT_TLSLD16,
1637 1, /* size (0 = byte, 1 = short, 2 = long) */
1639 FALSE, /* pc_relative */
1641 complain_overflow_signed, /* complain_on_overflow */
1642 ppc64_elf_unhandled_reloc, /* special_function */
1643 "R_PPC64_GOT_TLSLD16", /* name */
1644 FALSE, /* partial_inplace */
1646 0xffff, /* dst_mask */
1647 FALSE), /* pcrel_offset */
1649 /* Like GOT_TLSLD16, but no overflow. */
1650 HOWTO (R_PPC64_GOT_TLSLD16_LO,
1652 1, /* size (0 = byte, 1 = short, 2 = long) */
1654 FALSE, /* pc_relative */
1656 complain_overflow_dont, /* complain_on_overflow */
1657 ppc64_elf_unhandled_reloc, /* special_function */
1658 "R_PPC64_GOT_TLSLD16_LO", /* name */
1659 FALSE, /* partial_inplace */
1661 0xffff, /* dst_mask */
1662 FALSE), /* pcrel_offset */
1664 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1665 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1666 16, /* rightshift */
1667 1, /* size (0 = byte, 1 = short, 2 = long) */
1669 FALSE, /* pc_relative */
1671 complain_overflow_dont, /* complain_on_overflow */
1672 ppc64_elf_unhandled_reloc, /* special_function */
1673 "R_PPC64_GOT_TLSLD16_HI", /* name */
1674 FALSE, /* partial_inplace */
1676 0xffff, /* dst_mask */
1677 FALSE), /* pcrel_offset */
1679 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1680 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1681 16, /* rightshift */
1682 1, /* size (0 = byte, 1 = short, 2 = long) */
1684 FALSE, /* pc_relative */
1686 complain_overflow_dont, /* complain_on_overflow */
1687 ppc64_elf_unhandled_reloc, /* special_function */
1688 "R_PPC64_GOT_TLSLD16_HA", /* name */
1689 FALSE, /* partial_inplace */
1691 0xffff, /* dst_mask */
1692 FALSE), /* pcrel_offset */
1694 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1695 the offset to the entry relative to the TOC base (r2). */
1696 HOWTO (R_PPC64_GOT_DTPREL16_DS,
1698 1, /* size (0 = byte, 1 = short, 2 = long) */
1700 FALSE, /* pc_relative */
1702 complain_overflow_signed, /* complain_on_overflow */
1703 ppc64_elf_unhandled_reloc, /* special_function */
1704 "R_PPC64_GOT_DTPREL16_DS", /* name */
1705 FALSE, /* partial_inplace */
1707 0xfffc, /* dst_mask */
1708 FALSE), /* pcrel_offset */
1710 /* Like GOT_DTPREL16_DS, but no overflow. */
1711 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
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_DTPREL16_LO_DS", /* name */
1720 FALSE, /* partial_inplace */
1722 0xfffc, /* dst_mask */
1723 FALSE), /* pcrel_offset */
1725 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1726 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1727 16, /* rightshift */
1728 1, /* size (0 = byte, 1 = short, 2 = long) */
1730 FALSE, /* pc_relative */
1732 complain_overflow_dont, /* complain_on_overflow */
1733 ppc64_elf_unhandled_reloc, /* special_function */
1734 "R_PPC64_GOT_DTPREL16_HI", /* name */
1735 FALSE, /* partial_inplace */
1737 0xffff, /* dst_mask */
1738 FALSE), /* pcrel_offset */
1740 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1741 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1742 16, /* rightshift */
1743 1, /* size (0 = byte, 1 = short, 2 = long) */
1745 FALSE, /* pc_relative */
1747 complain_overflow_dont, /* complain_on_overflow */
1748 ppc64_elf_unhandled_reloc, /* special_function */
1749 "R_PPC64_GOT_DTPREL16_HA", /* name */
1750 FALSE, /* partial_inplace */
1752 0xffff, /* dst_mask */
1753 FALSE), /* pcrel_offset */
1755 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1756 offset to the entry relative to the TOC base (r2). */
1757 HOWTO (R_PPC64_GOT_TPREL16_DS,
1759 1, /* size (0 = byte, 1 = short, 2 = long) */
1761 FALSE, /* pc_relative */
1763 complain_overflow_signed, /* complain_on_overflow */
1764 ppc64_elf_unhandled_reloc, /* special_function */
1765 "R_PPC64_GOT_TPREL16_DS", /* name */
1766 FALSE, /* partial_inplace */
1768 0xfffc, /* dst_mask */
1769 FALSE), /* pcrel_offset */
1771 /* Like GOT_TPREL16_DS, but no overflow. */
1772 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
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_TPREL16_LO_DS", /* name */
1781 FALSE, /* partial_inplace */
1783 0xfffc, /* dst_mask */
1784 FALSE), /* pcrel_offset */
1786 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1787 HOWTO (R_PPC64_GOT_TPREL16_HI,
1788 16, /* rightshift */
1789 1, /* size (0 = byte, 1 = short, 2 = long) */
1791 FALSE, /* pc_relative */
1793 complain_overflow_dont, /* complain_on_overflow */
1794 ppc64_elf_unhandled_reloc, /* special_function */
1795 "R_PPC64_GOT_TPREL16_HI", /* name */
1796 FALSE, /* partial_inplace */
1798 0xffff, /* dst_mask */
1799 FALSE), /* pcrel_offset */
1801 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1802 HOWTO (R_PPC64_GOT_TPREL16_HA,
1803 16, /* rightshift */
1804 1, /* size (0 = byte, 1 = short, 2 = long) */
1806 FALSE, /* pc_relative */
1808 complain_overflow_dont, /* complain_on_overflow */
1809 ppc64_elf_unhandled_reloc, /* special_function */
1810 "R_PPC64_GOT_TPREL16_HA", /* name */
1811 FALSE, /* partial_inplace */
1813 0xffff, /* dst_mask */
1814 FALSE), /* pcrel_offset */
1816 /* GNU extension to record C++ vtable hierarchy. */
1817 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1819 0, /* size (0 = byte, 1 = short, 2 = long) */
1821 FALSE, /* pc_relative */
1823 complain_overflow_dont, /* complain_on_overflow */
1824 NULL, /* special_function */
1825 "R_PPC64_GNU_VTINHERIT", /* name */
1826 FALSE, /* partial_inplace */
1829 FALSE), /* pcrel_offset */
1831 /* GNU extension to record C++ vtable member usage. */
1832 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1834 0, /* size (0 = byte, 1 = short, 2 = long) */
1836 FALSE, /* pc_relative */
1838 complain_overflow_dont, /* complain_on_overflow */
1839 NULL, /* special_function */
1840 "R_PPC64_GNU_VTENTRY", /* name */
1841 FALSE, /* partial_inplace */
1844 FALSE), /* pcrel_offset */
1848 /* Initialize the ppc64_elf_howto_table, so that linear accesses can
1852 ppc_howto_init (void)
1854 unsigned int i, type;
1857 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1860 type = ppc64_elf_howto_raw[i].type;
1861 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1862 / sizeof (ppc64_elf_howto_table[0])));
1863 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1867 static reloc_howto_type *
1868 ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1869 bfd_reloc_code_real_type code)
1871 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
1873 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1874 /* Initialize howto table if needed. */
1882 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1884 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1886 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1888 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1890 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1892 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1894 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
1896 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
1898 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
1900 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
1902 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
1904 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
1906 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
1908 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
1910 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
1912 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
1914 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
1916 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
1918 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
1920 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
1922 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
1924 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
1926 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
1928 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
1930 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
1932 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
1934 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
1936 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
1938 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
1940 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
1942 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
1944 case BFD_RELOC_64: r = R_PPC64_ADDR64;
1946 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
1948 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
1950 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
1952 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
1954 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
1956 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
1958 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
1960 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
1962 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
1964 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
1966 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
1968 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
1970 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
1972 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
1974 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
1976 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
1978 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
1980 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
1982 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
1984 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
1986 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
1988 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
1990 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
1992 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
1994 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
1996 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
1998 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
2000 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
2002 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
2004 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
2006 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
2008 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
2010 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
2012 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
2014 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2016 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2018 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2020 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2022 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2024 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2026 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2028 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2030 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2032 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2034 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2036 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2038 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2040 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2042 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2044 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2046 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2048 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2050 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2052 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2054 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2056 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2058 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2060 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2062 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2064 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2066 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2068 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2070 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2072 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2074 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2076 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2078 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2080 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2082 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
2086 return ppc64_elf_howto_table[r];
2089 /* Set the howto pointer for a PowerPC ELF reloc. */
2092 ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2093 Elf_Internal_Rela *dst)
2097 /* Initialize howto table if needed. */
2098 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
2101 type = ELF64_R_TYPE (dst->r_info);
2102 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
2103 / sizeof (ppc64_elf_howto_table[0])));
2104 cache_ptr->howto = ppc64_elf_howto_table[type];
2107 /* Handle the R_PPC64_ADDR16_HA and similar relocs. */
2109 static bfd_reloc_status_type
2110 ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2111 void *data, asection *input_section,
2112 bfd *output_bfd, char **error_message)
2114 /* If this is a relocatable link (output_bfd test tells us), just
2115 call the generic function. Any adjustment will be done at final
2117 if (output_bfd != NULL)
2118 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2119 input_section, output_bfd, error_message);
2121 /* Adjust the addend for sign extension of the low 16 bits.
2122 We won't actually be using the low 16 bits, so trashing them
2124 reloc_entry->addend += 0x8000;
2125 return bfd_reloc_continue;
2128 static bfd_reloc_status_type
2129 ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2130 void *data, asection *input_section,
2131 bfd *output_bfd, char **error_message)
2134 enum elf_ppc64_reloc_type r_type;
2135 bfd_size_type octets;
2136 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
2137 bfd_boolean is_power4 = FALSE;
2139 /* If this is a relocatable link (output_bfd test tells us), just
2140 call the generic function. Any adjustment will be done at final
2142 if (output_bfd != NULL)
2143 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2144 input_section, output_bfd, error_message);
2146 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2147 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2148 insn &= ~(0x01 << 21);
2149 r_type = reloc_entry->howto->type;
2150 if (r_type == R_PPC64_ADDR14_BRTAKEN
2151 || r_type == R_PPC64_REL14_BRTAKEN)
2152 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
2156 /* Set 'a' bit. This is 0b00010 in BO field for branch
2157 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2158 for branch on CTR insns (BO == 1a00t or 1a01t). */
2159 if ((insn & (0x14 << 21)) == (0x04 << 21))
2161 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2164 return bfd_reloc_continue;
2171 if (!bfd_is_com_section (symbol->section))
2172 target = symbol->value;
2173 target += symbol->section->output_section->vma;
2174 target += symbol->section->output_offset;
2175 target += reloc_entry->addend;
2177 from = (reloc_entry->address
2178 + input_section->output_offset
2179 + input_section->output_section->vma);
2181 /* Invert 'y' bit if not the default. */
2182 if ((bfd_signed_vma) (target - from) < 0)
2185 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2186 return bfd_reloc_continue;
2189 static bfd_reloc_status_type
2190 ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2191 void *data, asection *input_section,
2192 bfd *output_bfd, char **error_message)
2194 /* If this is a relocatable link (output_bfd test tells us), just
2195 call the generic function. Any adjustment will be done at final
2197 if (output_bfd != NULL)
2198 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2199 input_section, output_bfd, error_message);
2201 /* Subtract the symbol section base address. */
2202 reloc_entry->addend -= symbol->section->output_section->vma;
2203 return bfd_reloc_continue;
2206 static bfd_reloc_status_type
2207 ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2208 void *data, asection *input_section,
2209 bfd *output_bfd, char **error_message)
2211 /* If this is a relocatable link (output_bfd test tells us), just
2212 call the generic function. Any adjustment will be done at final
2214 if (output_bfd != NULL)
2215 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2216 input_section, output_bfd, error_message);
2218 /* Subtract the symbol section base address. */
2219 reloc_entry->addend -= symbol->section->output_section->vma;
2221 /* Adjust the addend for sign extension of the low 16 bits. */
2222 reloc_entry->addend += 0x8000;
2223 return bfd_reloc_continue;
2226 static bfd_reloc_status_type
2227 ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2228 void *data, asection *input_section,
2229 bfd *output_bfd, char **error_message)
2233 /* If this is a relocatable link (output_bfd test tells us), just
2234 call the generic function. Any adjustment will be done at final
2236 if (output_bfd != NULL)
2237 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2238 input_section, output_bfd, error_message);
2240 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2242 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2244 /* Subtract the TOC base address. */
2245 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2246 return bfd_reloc_continue;
2249 static bfd_reloc_status_type
2250 ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2251 void *data, asection *input_section,
2252 bfd *output_bfd, char **error_message)
2256 /* If this is a relocatable link (output_bfd test tells us), just
2257 call the generic function. Any adjustment will be done at final
2259 if (output_bfd != NULL)
2260 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2261 input_section, output_bfd, error_message);
2263 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2265 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2267 /* Subtract the TOC base address. */
2268 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2270 /* Adjust the addend for sign extension of the low 16 bits. */
2271 reloc_entry->addend += 0x8000;
2272 return bfd_reloc_continue;
2275 static bfd_reloc_status_type
2276 ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2277 void *data, asection *input_section,
2278 bfd *output_bfd, char **error_message)
2281 bfd_size_type octets;
2283 /* If this is a relocatable link (output_bfd test tells us), just
2284 call the generic function. Any adjustment will be done at final
2286 if (output_bfd != NULL)
2287 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2288 input_section, output_bfd, error_message);
2290 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2292 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2294 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2295 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2296 return bfd_reloc_ok;
2299 static bfd_reloc_status_type
2300 ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2301 void *data, asection *input_section,
2302 bfd *output_bfd, char **error_message)
2304 /* If this is a relocatable link (output_bfd test tells us), just
2305 call the generic function. Any adjustment will be done at final
2307 if (output_bfd != NULL)
2308 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2309 input_section, output_bfd, error_message);
2311 if (error_message != NULL)
2313 static char buf[60];
2314 sprintf (buf, "generic linker can't handle %s",
2315 reloc_entry->howto->name);
2316 *error_message = buf;
2318 return bfd_reloc_dangerous;
2321 struct ppc64_elf_obj_tdata
2323 struct elf_obj_tdata elf;
2325 /* Shortcuts to dynamic linker sections. */
2329 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2330 sections means we potentially need one of these for each input bfd. */
2332 bfd_signed_vma refcount;
2337 #define ppc64_elf_tdata(bfd) \
2338 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2340 #define ppc64_tlsld_got(bfd) \
2341 (&ppc64_elf_tdata (bfd)->tlsld_got)
2343 /* Override the generic function because we store some extras. */
2346 ppc64_elf_mkobject (bfd *abfd)
2348 bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata);
2349 abfd->tdata.any = bfd_zalloc (abfd, amt);
2350 if (abfd->tdata.any == NULL)
2355 /* Fix bad default arch selected for a 64 bit input bfd when the
2356 default is 32 bit. */
2359 ppc64_elf_object_p (bfd *abfd)
2361 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2363 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2365 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2367 /* Relies on arch after 32 bit default being 64 bit default. */
2368 abfd->arch_info = abfd->arch_info->next;
2369 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2375 /* Merge backend specific data from an object file to the output
2376 object file when linking. */
2379 ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
2381 /* Check if we have the same endianess. */
2382 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
2383 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
2384 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2388 if (bfd_big_endian (ibfd))
2389 msg = _("%s: compiled for a big endian system "
2390 "and target is little endian");
2392 msg = _("%s: compiled for a little endian system "
2393 "and target is big endian");
2395 (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd));
2397 bfd_set_error (bfd_error_wrong_format);
2404 /* Add extra PPC sections. */
2406 static struct bfd_elf_special_section const ppc64_elf_special_sections[]=
2408 { ".sdata", 0, NULL, 0,
2409 SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2410 { ".sbss", 0, NULL, 0,
2411 SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2412 { ".plt", 0, NULL, 0,
2414 { ".toc", 0, NULL, 0,
2415 SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2416 { ".toc1", 0, NULL, 0,
2417 SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2418 { ".tocbss", 0, NULL, 0,
2419 SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2424 struct _ppc64_elf_section_data
2426 struct bfd_elf_section_data elf;
2428 /* An array with one entry for each opd function descriptor. */
2431 /* Points to the function code section for local opd entries. */
2432 asection **func_sec;
2433 /* After editing .opd, adjust references to opd local syms. */
2437 /* An array for toc sections, indexed by offset/8.
2438 Specifies the relocation symbol index used at a given toc offset. */
2442 #define ppc64_elf_section_data(sec) \
2443 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
2446 ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
2448 struct _ppc64_elf_section_data *sdata;
2449 bfd_size_type amt = sizeof (*sdata);
2451 sdata = bfd_zalloc (abfd, amt);
2454 sec->used_by_bfd = sdata;
2456 return _bfd_elf_new_section_hook (abfd, sec);
2459 /* The following functions are specific to the ELF linker, while
2460 functions above are used generally. Those named ppc64_elf_* are
2461 called by the main ELF linker code. They appear in this file more
2462 or less in the order in which they are called. eg.
2463 ppc64_elf_check_relocs is called early in the link process,
2464 ppc64_elf_finish_dynamic_sections is one of the last functions
2467 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
2468 functions have both a function code symbol and a function descriptor
2469 symbol. A call to foo in a relocatable object file looks like:
2476 The function definition in another object file might be:
2480 . .quad .TOC.@tocbase
2486 When the linker resolves the call during a static link, the branch
2487 unsurprisingly just goes to .foo and the .opd information is unused.
2488 If the function definition is in a shared library, things are a little
2489 different: The call goes via a plt call stub, the opd information gets
2490 copied to the plt, and the linker patches the nop.
2498 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
2499 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
2500 . std 2,40(1) # this is the general idea
2508 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
2510 The "reloc ()" notation is supposed to indicate that the linker emits
2511 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
2514 What are the difficulties here? Well, firstly, the relocations
2515 examined by the linker in check_relocs are against the function code
2516 sym .foo, while the dynamic relocation in the plt is emitted against
2517 the function descriptor symbol, foo. Somewhere along the line, we need
2518 to carefully copy dynamic link information from one symbol to the other.
2519 Secondly, the generic part of the elf linker will make .foo a dynamic
2520 symbol as is normal for most other backends. We need foo dynamic
2521 instead, at least for an application final link. However, when
2522 creating a shared library containing foo, we need to have both symbols
2523 dynamic so that references to .foo are satisfied during the early
2524 stages of linking. Otherwise the linker might decide to pull in a
2525 definition from some other object, eg. a static library. */
2527 /* The linker needs to keep track of the number of relocs that it
2528 decides to copy as dynamic relocs in check_relocs for each symbol.
2529 This is so that it can later discard them if they are found to be
2530 unnecessary. We store the information in a field extending the
2531 regular ELF linker hash table. */
2533 struct ppc_dyn_relocs
2535 struct ppc_dyn_relocs *next;
2537 /* The input section of the reloc. */
2540 /* Total number of relocs copied for the input section. */
2541 bfd_size_type count;
2543 /* Number of pc-relative relocs copied for the input section. */
2544 bfd_size_type pc_count;
2547 /* Track GOT entries needed for a given symbol. We might need more
2548 than one got entry per symbol. */
2551 struct got_entry *next;
2553 /* The symbol addend that we'll be placing in the GOT. */
2556 /* Unlike other ELF targets, we use separate GOT entries for the same
2557 symbol referenced from different input files. This is to support
2558 automatic multiple TOC/GOT sections, where the TOC base can vary
2559 from one input file to another.
2561 Point to the BFD owning this GOT entry. */
2564 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2565 TLS_TPREL or TLS_DTPREL for tls entries. */
2568 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
2571 bfd_signed_vma refcount;
2576 /* The same for PLT. */
2579 struct plt_entry *next;
2585 bfd_signed_vma refcount;
2590 /* Of those relocs that might be copied as dynamic relocs, this macro
2591 selects those that must be copied when linking a shared library,
2592 even when the symbol is local. */
2594 #define MUST_BE_DYN_RELOC(RTYPE) \
2595 ((RTYPE) != R_PPC64_REL32 \
2596 && (RTYPE) != R_PPC64_REL64 \
2597 && (RTYPE) != R_PPC64_REL30)
2599 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2600 copying dynamic variables from a shared lib into an app's dynbss
2601 section, and instead use a dynamic relocation to point into the
2602 shared lib. With code that gcc generates, it's vital that this be
2603 enabled; In the PowerPC64 ABI, the address of a function is actually
2604 the address of a function descriptor, which resides in the .opd
2605 section. gcc uses the descriptor directly rather than going via the
2606 GOT as some other ABI's do, which means that initialized function
2607 pointers must reference the descriptor. Thus, a function pointer
2608 initialized to the address of a function in a shared library will
2609 either require a copy reloc, or a dynamic reloc. Using a copy reloc
2610 redefines the function desctriptor symbol to point to the copy. This
2611 presents a problem as a plt entry for that function is also
2612 initialized from the function descriptor symbol and the copy reloc
2613 may not be initialized first. */
2614 #define ELIMINATE_COPY_RELOCS 1
2616 /* Section name for stubs is the associated section name plus this
2618 #define STUB_SUFFIX ".stub"
2621 ppc_stub_long_branch:
2622 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
2623 destination, but a 24 bit branch in a stub section will reach.
2626 ppc_stub_plt_branch:
2627 Similar to the above, but a 24 bit branch in the stub section won't
2628 reach its destination.
2629 . addis %r12,%r2,xxx@toc@ha
2630 . ld %r11,xxx@toc@l(%r12)
2635 Used to call a function in a shared library.
2636 . addis %r12,%r2,xxx@toc@ha
2638 . ld %r11,xxx+0@toc@l(%r12)
2639 . ld %r2,xxx+8@toc@l(%r12)
2641 . ld %r11,xxx+16@toc@l(%r12)
2644 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
2645 code to adjust the value and save r2 to support multiple toc sections.
2646 A ppc_stub_long_branch with an r2 offset looks like:
2648 . addis %r2,%r2,off@ha
2649 . addi %r2,%r2,off@l
2652 A ppc_stub_plt_branch with an r2 offset looks like:
2654 . addis %r12,%r2,xxx@toc@ha
2655 . ld %r11,xxx@toc@l(%r12)
2656 . addis %r2,%r2,off@ha
2657 . addi %r2,%r2,off@l
2662 enum ppc_stub_type {
2664 ppc_stub_long_branch,
2665 ppc_stub_long_branch_r2off,
2666 ppc_stub_plt_branch,
2667 ppc_stub_plt_branch_r2off,
2671 struct ppc_stub_hash_entry {
2673 /* Base hash table entry structure. */
2674 struct bfd_hash_entry root;
2676 enum ppc_stub_type stub_type;
2678 /* The stub section. */
2681 /* Offset within stub_sec of the beginning of this stub. */
2682 bfd_vma stub_offset;
2684 /* Given the symbol's value and its section we can determine its final
2685 value when building the stubs (so the stub knows where to jump. */
2686 bfd_vma target_value;
2687 asection *target_section;
2689 /* The symbol table entry, if any, that this was derived from. */
2690 struct ppc_link_hash_entry *h;
2692 /* And the reloc addend that this was derived from. */
2695 /* Where this stub is being called from, or, in the case of combined
2696 stub sections, the first input section in the group. */
2700 struct ppc_branch_hash_entry {
2702 /* Base hash table entry structure. */
2703 struct bfd_hash_entry root;
2705 /* Offset within .branch_lt. */
2706 unsigned int offset;
2708 /* Generation marker. */
2712 struct ppc_link_hash_entry
2714 struct elf_link_hash_entry elf;
2716 /* A pointer to the most recently used stub hash entry against this
2718 struct ppc_stub_hash_entry *stub_cache;
2720 /* Track dynamic relocs copied for this symbol. */
2721 struct ppc_dyn_relocs *dyn_relocs;
2723 /* Link between function code and descriptor symbols. */
2724 struct elf_link_hash_entry *oh;
2726 /* Flag function code and descriptor symbols. */
2727 unsigned int is_func:1;
2728 unsigned int is_func_descriptor:1;
2729 unsigned int is_entry:1;
2731 /* Contexts in which symbol is used in the GOT (or TOC).
2732 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
2733 corresponding relocs are encountered during check_relocs.
2734 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2735 indicate the corresponding GOT entry type is not needed.
2736 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
2737 a TPREL one. We use a separate flag rather than setting TPREL
2738 just for convenience in distinguishing the two cases. */
2739 #define TLS_GD 1 /* GD reloc. */
2740 #define TLS_LD 2 /* LD reloc. */
2741 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
2742 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2743 #define TLS_TLS 16 /* Any TLS reloc. */
2744 #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
2745 #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
2749 /* ppc64 ELF linker hash table. */
2751 struct ppc_link_hash_table
2753 struct elf_link_hash_table elf;
2755 /* The stub hash table. */
2756 struct bfd_hash_table stub_hash_table;
2758 /* Another hash table for plt_branch stubs. */
2759 struct bfd_hash_table branch_hash_table;
2761 /* Linker stub bfd. */
2764 /* Linker call-backs. */
2765 asection * (*add_stub_section) (const char *, asection *);
2766 void (*layout_sections_again) (void);
2768 /* Array to keep track of which stub sections have been created, and
2769 information on stub grouping. */
2771 /* This is the section to which stubs in the group will be attached. */
2773 /* The stub section. */
2775 /* Along with elf_gp, specifies the TOC pointer used in this group. */
2779 /* Support for multiple toc sections. */
2780 unsigned int no_multi_toc;
2781 unsigned int multi_toc_needed;
2783 /* Temp used when calculating TOC pointers. */
2786 /* Highest input section id. */
2789 /* Highest output section index. */
2792 /* List of input sections for each output section. */
2793 asection **input_list;
2795 /* Short-cuts to get to dynamic linker sections. */
2806 /* Short-cut to first output tls section. */
2809 /* Shortcut to .__tls_get_addr. */
2810 struct elf_link_hash_entry *tls_get_addr;
2813 unsigned long stub_count[ppc_stub_plt_call];
2815 /* Set if we should emit symbols for stubs. */
2816 unsigned int emit_stub_syms;
2819 unsigned int stub_error;
2821 /* Flag set when small branches are detected. Used to
2822 select suitable defaults for the stub group size. */
2823 unsigned int has_14bit_branch;
2825 /* Set if we detect a reference undefined weak symbol. */
2826 unsigned int have_undefweak;
2828 /* Incremented every time we size stubs. */
2829 unsigned int stub_iteration;
2831 /* Small local sym to section mapping cache. */
2832 struct sym_sec_cache sym_sec;
2835 /* Get the ppc64 ELF linker hash table from a link_info structure. */
2837 #define ppc_hash_table(p) \
2838 ((struct ppc_link_hash_table *) ((p)->hash))
2840 #define ppc_stub_hash_lookup(table, string, create, copy) \
2841 ((struct ppc_stub_hash_entry *) \
2842 bfd_hash_lookup ((table), (string), (create), (copy)))
2844 #define ppc_branch_hash_lookup(table, string, create, copy) \
2845 ((struct ppc_branch_hash_entry *) \
2846 bfd_hash_lookup ((table), (string), (create), (copy)))
2848 /* Create an entry in the stub hash table. */
2850 static struct bfd_hash_entry *
2851 stub_hash_newfunc (struct bfd_hash_entry *entry,
2852 struct bfd_hash_table *table,
2855 /* Allocate the structure if it has not already been allocated by a
2859 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
2864 /* Call the allocation method of the superclass. */
2865 entry = bfd_hash_newfunc (entry, table, string);
2868 struct ppc_stub_hash_entry *eh;
2870 /* Initialize the local fields. */
2871 eh = (struct ppc_stub_hash_entry *) entry;
2872 eh->stub_type = ppc_stub_none;
2873 eh->stub_sec = NULL;
2874 eh->stub_offset = 0;
2875 eh->target_value = 0;
2876 eh->target_section = NULL;
2884 /* Create an entry in the branch hash table. */
2886 static struct bfd_hash_entry *
2887 branch_hash_newfunc (struct bfd_hash_entry *entry,
2888 struct bfd_hash_table *table,
2891 /* Allocate the structure if it has not already been allocated by a
2895 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
2900 /* Call the allocation method of the superclass. */
2901 entry = bfd_hash_newfunc (entry, table, string);
2904 struct ppc_branch_hash_entry *eh;
2906 /* Initialize the local fields. */
2907 eh = (struct ppc_branch_hash_entry *) entry;
2915 /* Create an entry in a ppc64 ELF linker hash table. */
2917 static struct bfd_hash_entry *
2918 link_hash_newfunc (struct bfd_hash_entry *entry,
2919 struct bfd_hash_table *table,
2922 /* Allocate the structure if it has not already been allocated by a
2926 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
2931 /* Call the allocation method of the superclass. */
2932 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2935 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
2937 eh->stub_cache = NULL;
2938 eh->dyn_relocs = NULL;
2941 eh->is_func_descriptor = 0;
2949 /* Create a ppc64 ELF linker hash table. */
2951 static struct bfd_link_hash_table *
2952 ppc64_elf_link_hash_table_create (bfd *abfd)
2954 struct ppc_link_hash_table *htab;
2955 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
2957 htab = bfd_zmalloc (amt);
2961 if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc))
2967 /* Init the stub hash table too. */
2968 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc))
2971 /* And the branch hash table. */
2972 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc))
2975 /* Initializing two fields of the union is just cosmetic. We really
2976 only care about glist, but when compiled on a 32-bit host the
2977 bfd_vma fields are larger. Setting the bfd_vma to zero makes
2978 debugger inspection of these fields look nicer. */
2979 htab->elf.init_refcount.refcount = 0;
2980 htab->elf.init_refcount.glist = NULL;
2981 htab->elf.init_offset.offset = 0;
2982 htab->elf.init_offset.glist = NULL;
2984 return &htab->elf.root;
2987 /* Free the derived linker hash table. */
2990 ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
2992 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
2994 bfd_hash_table_free (&ret->stub_hash_table);
2995 bfd_hash_table_free (&ret->branch_hash_table);
2996 _bfd_generic_link_hash_table_free (hash);
2999 /* Satisfy the ELF linker by filling in some fields in our fake bfd. */
3002 ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
3004 struct ppc_link_hash_table *htab;
3006 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
3008 /* Always hook our dynamic sections into the first bfd, which is the
3009 linker created stub bfd. This ensures that the GOT header is at
3010 the start of the output TOC section. */
3011 htab = ppc_hash_table (info);
3012 htab->stub_bfd = abfd;
3013 htab->elf.dynobj = abfd;
3016 /* Build a name for an entry in the stub hash table. */
3019 ppc_stub_name (const asection *input_section,
3020 const asection *sym_sec,
3021 const struct ppc_link_hash_entry *h,
3022 const Elf_Internal_Rela *rel)
3027 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3028 offsets from a sym as a branch target? In fact, we could
3029 probably assume the addend is always zero. */
3030 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3034 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3035 stub_name = bfd_malloc (len);
3036 if (stub_name != NULL)
3038 sprintf (stub_name, "%08x.%s+%x",
3039 input_section->id & 0xffffffff,
3040 h->elf.root.root.string,
3041 (int) rel->r_addend & 0xffffffff);
3046 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
3047 stub_name = bfd_malloc (len);
3048 if (stub_name != NULL)
3050 sprintf (stub_name, "%08x.%x:%x+%x",
3051 input_section->id & 0xffffffff,
3052 sym_sec->id & 0xffffffff,
3053 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3054 (int) rel->r_addend & 0xffffffff);
3060 /* Look up an entry in the stub hash. Stub entries are cached because
3061 creating the stub name takes a bit of time. */
3063 static struct ppc_stub_hash_entry *
3064 ppc_get_stub_entry (const asection *input_section,
3065 const asection *sym_sec,
3066 struct elf_link_hash_entry *hash,
3067 const Elf_Internal_Rela *rel,
3068 struct ppc_link_hash_table *htab)
3070 struct ppc_stub_hash_entry *stub_entry;
3071 struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash;
3072 const asection *id_sec;
3074 /* If this input section is part of a group of sections sharing one
3075 stub section, then use the id of the first section in the group.
3076 Stub names need to include a section id, as there may well be
3077 more than one stub used to reach say, printf, and we need to
3078 distinguish between them. */
3079 id_sec = htab->stub_group[input_section->id].link_sec;
3081 if (h != NULL && h->stub_cache != NULL
3082 && h->stub_cache->h == h
3083 && h->stub_cache->id_sec == id_sec)
3085 stub_entry = h->stub_cache;
3091 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3092 if (stub_name == NULL)
3095 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
3096 stub_name, FALSE, FALSE);
3098 h->stub_cache = stub_entry;
3106 /* Add a new stub entry to the stub hash. Not all fields of the new
3107 stub entry are initialised. */
3109 static struct ppc_stub_hash_entry *
3110 ppc_add_stub (const char *stub_name,
3112 struct ppc_link_hash_table *htab)
3116 struct ppc_stub_hash_entry *stub_entry;
3118 link_sec = htab->stub_group[section->id].link_sec;
3119 stub_sec = htab->stub_group[section->id].stub_sec;
3120 if (stub_sec == NULL)
3122 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3123 if (stub_sec == NULL)
3129 namelen = strlen (link_sec->name);
3130 len = namelen + sizeof (STUB_SUFFIX);
3131 s_name = bfd_alloc (htab->stub_bfd, len);
3135 memcpy (s_name, link_sec->name, namelen);
3136 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
3137 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3138 if (stub_sec == NULL)
3140 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3142 htab->stub_group[section->id].stub_sec = stub_sec;
3145 /* Enter this entry into the linker stub hash table. */
3146 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
3148 if (stub_entry == NULL)
3150 (*_bfd_error_handler) (_("%s: cannot create stub entry %s"),
3151 bfd_archive_filename (section->owner),
3156 stub_entry->stub_sec = stub_sec;
3157 stub_entry->stub_offset = 0;
3158 stub_entry->id_sec = link_sec;
3162 /* Create sections for linker generated code. */
3165 create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
3167 struct ppc_link_hash_table *htab;
3170 htab = ppc_hash_table (info);
3172 /* Create .sfpr for code to save and restore fp regs. */
3173 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3174 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3175 htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr");
3176 if (htab->sfpr == NULL
3177 || ! bfd_set_section_flags (dynobj, htab->sfpr, flags)
3178 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
3181 /* Create .glink for lazy dynamic linking support. */
3182 htab->glink = bfd_make_section_anyway (dynobj, ".glink");
3183 if (htab->glink == NULL
3184 || ! bfd_set_section_flags (dynobj, htab->glink, flags)
3185 || ! bfd_set_section_alignment (dynobj, htab->glink, 2))
3188 /* Create .branch_lt for plt_branch stubs. */
3189 flags = (SEC_ALLOC | SEC_LOAD
3190 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3191 htab->brlt = bfd_make_section_anyway (dynobj, ".branch_lt");
3192 if (htab->brlt == NULL
3193 || ! bfd_set_section_flags (dynobj, htab->brlt, flags)
3194 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
3199 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3200 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3201 htab->relbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt");
3203 || ! bfd_set_section_flags (dynobj, htab->relbrlt, flags)
3204 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
3210 /* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3211 not already done. */
3214 create_got_section (bfd *abfd, struct bfd_link_info *info)
3216 asection *got, *relgot;
3218 struct ppc_link_hash_table *htab = ppc_hash_table (info);
3222 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
3225 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
3230 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3231 | SEC_LINKER_CREATED);
3233 got = bfd_make_section (abfd, ".got");
3235 || !bfd_set_section_flags (abfd, got, flags)
3236 || !bfd_set_section_alignment (abfd, got, 3))
3239 relgot = bfd_make_section (abfd, ".rela.got");
3241 || ! bfd_set_section_flags (abfd, relgot, flags | SEC_READONLY)
3242 || ! bfd_set_section_alignment (abfd, relgot, 3))
3245 ppc64_elf_tdata (abfd)->got = got;
3246 ppc64_elf_tdata (abfd)->relgot = relgot;
3250 /* Create the dynamic sections, and set up shortcuts. */
3253 ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
3255 struct ppc_link_hash_table *htab;
3257 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
3260 htab = ppc_hash_table (info);
3262 htab->got = bfd_get_section_by_name (dynobj, ".got");
3263 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
3264 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3265 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
3267 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
3269 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
3270 || (!info->shared && !htab->relbss))
3276 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3279 ppc64_elf_copy_indirect_symbol
3280 (const struct elf_backend_data *bed ATTRIBUTE_UNUSED,
3281 struct elf_link_hash_entry *dir,
3282 struct elf_link_hash_entry *ind)
3284 struct ppc_link_hash_entry *edir, *eind;
3287 edir = (struct ppc_link_hash_entry *) dir;
3288 eind = (struct ppc_link_hash_entry *) ind;
3290 /* Copy over any dynamic relocs we may have on the indirect sym. */
3291 if (eind->dyn_relocs != NULL)
3293 if (edir->dyn_relocs != NULL)
3295 struct ppc_dyn_relocs **pp;
3296 struct ppc_dyn_relocs *p;
3298 if (eind->elf.root.type == bfd_link_hash_indirect)
3301 /* Add reloc counts against the weak sym to the strong sym
3302 list. Merge any entries against the same section. */
3303 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3305 struct ppc_dyn_relocs *q;
3307 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3308 if (q->sec == p->sec)
3310 q->pc_count += p->pc_count;
3311 q->count += p->count;
3318 *pp = edir->dyn_relocs;
3321 edir->dyn_relocs = eind->dyn_relocs;
3322 eind->dyn_relocs = NULL;
3325 edir->is_func |= eind->is_func;
3326 edir->is_func_descriptor |= eind->is_func_descriptor;
3327 edir->is_entry |= eind->is_entry;
3328 edir->tls_mask |= eind->tls_mask;
3330 mask = (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR
3331 | ELF_LINK_HASH_REF_REGULAR_NONWEAK | ELF_LINK_NON_GOT_REF);
3332 /* If called to transfer flags for a weakdef during processing
3333 of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
3334 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3335 if (ELIMINATE_COPY_RELOCS
3336 && eind->elf.root.type != bfd_link_hash_indirect
3337 && (edir->elf.elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
3338 mask &= ~ELF_LINK_NON_GOT_REF;
3340 edir->elf.elf_link_hash_flags |= eind->elf.elf_link_hash_flags & mask;
3342 /* If we were called to copy over info for a weak sym, that's all. */
3343 if (eind->elf.root.type != bfd_link_hash_indirect)
3346 /* Copy over got entries that we may have already seen to the
3347 symbol which just became indirect. */
3348 if (eind->elf.got.glist != NULL)
3350 if (edir->elf.got.glist != NULL)
3352 struct got_entry **entp;
3353 struct got_entry *ent;
3355 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
3357 struct got_entry *dent;
3359 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
3360 if (dent->addend == ent->addend
3361 && dent->owner == ent->owner
3362 && dent->tls_type == ent->tls_type)
3364 dent->got.refcount += ent->got.refcount;
3371 *entp = edir->elf.got.glist;
3374 edir->elf.got.glist = eind->elf.got.glist;
3375 eind->elf.got.glist = NULL;
3378 /* And plt entries. */
3379 if (eind->elf.plt.plist != NULL)
3381 if (edir->elf.plt.plist != NULL)
3383 struct plt_entry **entp;
3384 struct plt_entry *ent;
3386 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3388 struct plt_entry *dent;
3390 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3391 if (dent->addend == ent->addend)
3393 dent->plt.refcount += ent->plt.refcount;
3400 *entp = edir->elf.plt.plist;
3403 edir->elf.plt.plist = eind->elf.plt.plist;
3404 eind->elf.plt.plist = NULL;
3407 if (edir->elf.dynindx == -1)
3409 edir->elf.dynindx = eind->elf.dynindx;
3410 edir->elf.dynstr_index = eind->elf.dynstr_index;
3411 eind->elf.dynindx = -1;
3412 eind->elf.dynstr_index = 0;
3415 BFD_ASSERT (eind->elf.dynindx == -1);
3418 /* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and
3419 symbols undefined on the command-line. */
3422 ppc64_elf_mark_entry_syms (struct bfd_link_info *info)
3424 struct ppc_link_hash_table *htab;
3425 struct bfd_sym_chain *sym;
3427 htab = ppc_hash_table (info);
3428 for (sym = info->gc_sym_list; sym; sym = sym->next)
3430 struct elf_link_hash_entry *h;
3432 h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
3434 ((struct ppc_link_hash_entry *) h)->is_entry = 1;
3440 update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
3441 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
3443 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
3444 char *local_got_tls_masks;
3446 if (local_got_ents == NULL)
3448 bfd_size_type size = symtab_hdr->sh_info;
3450 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
3451 local_got_ents = bfd_zalloc (abfd, size);
3452 if (local_got_ents == NULL)
3454 elf_local_got_ents (abfd) = local_got_ents;
3457 if ((tls_type & TLS_EXPLICIT) == 0)
3459 struct got_entry *ent;
3461 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
3462 if (ent->addend == r_addend
3463 && ent->owner == abfd
3464 && ent->tls_type == tls_type)
3468 bfd_size_type amt = sizeof (*ent);
3469 ent = bfd_alloc (abfd, amt);
3472 ent->next = local_got_ents[r_symndx];
3473 ent->addend = r_addend;
3475 ent->tls_type = tls_type;
3476 ent->got.refcount = 0;
3477 local_got_ents[r_symndx] = ent;
3479 ent->got.refcount += 1;
3482 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
3483 local_got_tls_masks[r_symndx] |= tls_type;
3488 update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
3490 struct plt_entry *ent;
3492 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
3493 if (ent->addend == addend)
3497 bfd_size_type amt = sizeof (*ent);
3498 ent = bfd_alloc (abfd, amt);
3501 ent->next = eh->elf.plt.plist;
3502 ent->addend = addend;
3503 ent->plt.refcount = 0;
3504 eh->elf.plt.plist = ent;
3506 ent->plt.refcount += 1;
3507 eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
3512 /* Find the function descriptor hash entry from the given function code
3513 hash entry FH. Link the entries via their OH fields. */
3514 static struct ppc_link_hash_entry *
3515 get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
3517 struct ppc_link_hash_entry *fdh = (struct ppc_link_hash_entry *) fh->oh;
3521 const char *fd_name = fh->elf.root.root.string + 1;
3523 fdh = (struct ppc_link_hash_entry *)
3524 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
3527 fdh->is_func_descriptor = 1;
3537 /* Look through the relocs for a section during the first phase, and
3538 calculate needed space in the global offset table, procedure
3539 linkage table, and dynamic reloc sections. */
3542 ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
3543 asection *sec, const Elf_Internal_Rela *relocs)
3545 struct ppc_link_hash_table *htab;
3546 Elf_Internal_Shdr *symtab_hdr;
3547 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3548 const Elf_Internal_Rela *rel;
3549 const Elf_Internal_Rela *rel_end;
3551 asection **opd_sym_map;
3553 if (info->relocatable)
3556 htab = ppc_hash_table (info);
3557 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3559 sym_hashes = elf_sym_hashes (abfd);
3560 sym_hashes_end = (sym_hashes
3561 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
3562 - symtab_hdr->sh_info);
3566 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
3568 /* Garbage collection needs some extra help with .opd sections.
3569 We don't want to necessarily keep everything referenced by
3570 relocs in .opd, as that would keep all functions. Instead,
3571 if we reference an .opd symbol (a function descriptor), we
3572 want to keep the function code symbol's section. This is
3573 easy for global symbols, but for local syms we need to keep
3574 information about the associated function section. Later, if
3575 edit_opd deletes entries, we'll use this array to adjust
3576 local syms in .opd. */
3578 asection *func_section;
3583 amt = sec->_raw_size * sizeof (union opd_info) / 24;
3584 opd_sym_map = bfd_zalloc (abfd, amt);
3585 if (opd_sym_map == NULL)
3587 ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map;
3590 if (htab->sfpr == NULL
3591 && !create_linkage_sections (htab->elf.dynobj, info))
3594 rel_end = relocs + sec->reloc_count;
3595 for (rel = relocs; rel < rel_end; rel++)
3597 unsigned long r_symndx;
3598 struct elf_link_hash_entry *h;
3599 enum elf_ppc64_reloc_type r_type;
3602 r_symndx = ELF64_R_SYM (rel->r_info);
3603 if (r_symndx < symtab_hdr->sh_info)
3606 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3608 r_type = ELF64_R_TYPE (rel->r_info);
3611 case R_PPC64_GOT_TLSLD16:
3612 case R_PPC64_GOT_TLSLD16_LO:
3613 case R_PPC64_GOT_TLSLD16_HI:
3614 case R_PPC64_GOT_TLSLD16_HA:
3615 ppc64_tlsld_got (abfd)->refcount += 1;
3616 tls_type = TLS_TLS | TLS_LD;
3619 case R_PPC64_GOT_TLSGD16:
3620 case R_PPC64_GOT_TLSGD16_LO:
3621 case R_PPC64_GOT_TLSGD16_HI:
3622 case R_PPC64_GOT_TLSGD16_HA:
3623 tls_type = TLS_TLS | TLS_GD;
3626 case R_PPC64_GOT_TPREL16_DS:
3627 case R_PPC64_GOT_TPREL16_LO_DS:
3628 case R_PPC64_GOT_TPREL16_HI:
3629 case R_PPC64_GOT_TPREL16_HA:
3631 info->flags |= DF_STATIC_TLS;
3632 tls_type = TLS_TLS | TLS_TPREL;
3635 case R_PPC64_GOT_DTPREL16_DS:
3636 case R_PPC64_GOT_DTPREL16_LO_DS:
3637 case R_PPC64_GOT_DTPREL16_HI:
3638 case R_PPC64_GOT_DTPREL16_HA:
3639 tls_type = TLS_TLS | TLS_DTPREL;
3641 sec->has_tls_reloc = 1;
3645 case R_PPC64_GOT16_DS:
3646 case R_PPC64_GOT16_HA:
3647 case R_PPC64_GOT16_HI:
3648 case R_PPC64_GOT16_LO:
3649 case R_PPC64_GOT16_LO_DS:
3650 /* This symbol requires a global offset table entry. */
3651 sec->has_gp_reloc = 1;
3652 if (ppc64_elf_tdata (abfd)->got == NULL
3653 && !create_got_section (abfd, info))
3658 struct ppc_link_hash_entry *eh;
3659 struct got_entry *ent;
3661 eh = (struct ppc_link_hash_entry *) h;
3662 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
3663 if (ent->addend == rel->r_addend
3664 && ent->owner == abfd
3665 && ent->tls_type == tls_type)
3669 bfd_size_type amt = sizeof (*ent);
3670 ent = bfd_alloc (abfd, amt);
3673 ent->next = eh->elf.got.glist;
3674 ent->addend = rel->r_addend;
3676 ent->tls_type = tls_type;
3677 ent->got.refcount = 0;
3678 eh->elf.got.glist = ent;
3680 ent->got.refcount += 1;
3681 eh->tls_mask |= tls_type;
3684 /* This is a global offset table entry for a local symbol. */
3685 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3686 rel->r_addend, tls_type))
3690 case R_PPC64_PLT16_HA:
3691 case R_PPC64_PLT16_HI:
3692 case R_PPC64_PLT16_LO:
3695 /* This symbol requires a procedure linkage table entry. We
3696 actually build the entry in adjust_dynamic_symbol,
3697 because this might be a case of linking PIC code without
3698 linking in any dynamic objects, in which case we don't
3699 need to generate a procedure linkage table after all. */
3702 /* It does not make sense to have a procedure linkage
3703 table entry for a local symbol. */
3704 bfd_set_error (bfd_error_bad_value);
3708 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3713 /* The following relocations don't need to propagate the
3714 relocation if linking a shared object since they are
3715 section relative. */
3716 case R_PPC64_SECTOFF:
3717 case R_PPC64_SECTOFF_LO:
3718 case R_PPC64_SECTOFF_HI:
3719 case R_PPC64_SECTOFF_HA:
3720 case R_PPC64_SECTOFF_DS:
3721 case R_PPC64_SECTOFF_LO_DS:
3722 case R_PPC64_DTPREL16:
3723 case R_PPC64_DTPREL16_LO:
3724 case R_PPC64_DTPREL16_HI:
3725 case R_PPC64_DTPREL16_HA:
3726 case R_PPC64_DTPREL16_DS:
3727 case R_PPC64_DTPREL16_LO_DS:
3728 case R_PPC64_DTPREL16_HIGHER:
3729 case R_PPC64_DTPREL16_HIGHERA:
3730 case R_PPC64_DTPREL16_HIGHEST:
3731 case R_PPC64_DTPREL16_HIGHESTA:
3736 case R_PPC64_TOC16_LO:
3737 case R_PPC64_TOC16_HI:
3738 case R_PPC64_TOC16_HA:
3739 case R_PPC64_TOC16_DS:
3740 case R_PPC64_TOC16_LO_DS:
3741 sec->has_gp_reloc = 1;
3744 /* This relocation describes the C++ object vtable hierarchy.
3745 Reconstruct it for later use during GC. */
3746 case R_PPC64_GNU_VTINHERIT:
3747 if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3751 /* This relocation describes which C++ vtable entries are actually
3752 used. Record for later use during GC. */
3753 case R_PPC64_GNU_VTENTRY:
3754 if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3759 case R_PPC64_REL14_BRTAKEN:
3760 case R_PPC64_REL14_BRNTAKEN:
3761 htab->has_14bit_branch = 1;
3766 && h->root.root.string[0] == '.'
3767 && h->root.root.string[1] != 0)
3769 /* We may need a .plt entry if the function this reloc
3770 refers to is in a shared lib. */
3771 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3774 if (h == htab->tls_get_addr)
3775 sec->has_tls_reloc = 1;
3776 else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15)
3778 && (h->root.root.string[15] == 0
3779 || h->root.root.string[15] == '@'))
3781 htab->tls_get_addr = h;
3782 sec->has_tls_reloc = 1;
3787 case R_PPC64_TPREL64:
3788 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
3790 info->flags |= DF_STATIC_TLS;
3793 case R_PPC64_DTPMOD64:
3794 if (rel + 1 < rel_end
3795 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
3796 && rel[1].r_offset == rel->r_offset + 8)
3797 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
3799 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
3802 case R_PPC64_DTPREL64:
3803 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
3805 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
3806 && rel[-1].r_offset == rel->r_offset - 8)
3807 /* This is the second reloc of a dtpmod, dtprel pair.
3808 Don't mark with TLS_DTPREL. */
3812 sec->has_tls_reloc = 1;
3815 struct ppc_link_hash_entry *eh;
3816 eh = (struct ppc_link_hash_entry *) h;
3817 eh->tls_mask |= tls_type;
3820 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3821 rel->r_addend, tls_type))
3824 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3826 /* One extra to simplify get_tls_mask. */
3827 bfd_size_type amt = sec->_raw_size * sizeof (unsigned) / 8 + 1;
3828 ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt);
3829 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3832 BFD_ASSERT (rel->r_offset % 8 == 0);
3833 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx;
3835 /* Mark the second slot of a GD or LD entry.
3836 -1 to indicate GD and -2 to indicate LD. */
3837 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
3838 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1;
3839 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
3840 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2;
3843 case R_PPC64_TPREL16:
3844 case R_PPC64_TPREL16_LO:
3845 case R_PPC64_TPREL16_HI:
3846 case R_PPC64_TPREL16_HA:
3847 case R_PPC64_TPREL16_DS:
3848 case R_PPC64_TPREL16_LO_DS:
3849 case R_PPC64_TPREL16_HIGHER:
3850 case R_PPC64_TPREL16_HIGHERA:
3851 case R_PPC64_TPREL16_HIGHEST:
3852 case R_PPC64_TPREL16_HIGHESTA:
3855 info->flags |= DF_STATIC_TLS;
3860 case R_PPC64_ADDR64:
3861 if (opd_sym_map != NULL
3863 && h->root.root.string[0] == '.'
3864 && h->root.root.string[1] != 0)
3865 get_fdh ((struct ppc_link_hash_entry *) h, htab);
3867 if (opd_sym_map != NULL
3869 && rel + 1 < rel_end
3870 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
3874 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3879 opd_sym_map[rel->r_offset / 24] = s;
3886 case R_PPC64_ADDR14:
3887 case R_PPC64_ADDR14_BRNTAKEN:
3888 case R_PPC64_ADDR14_BRTAKEN:
3889 case R_PPC64_ADDR16:
3890 case R_PPC64_ADDR16_DS:
3891 case R_PPC64_ADDR16_HA:
3892 case R_PPC64_ADDR16_HI:
3893 case R_PPC64_ADDR16_HIGHER:
3894 case R_PPC64_ADDR16_HIGHERA:
3895 case R_PPC64_ADDR16_HIGHEST:
3896 case R_PPC64_ADDR16_HIGHESTA:
3897 case R_PPC64_ADDR16_LO:
3898 case R_PPC64_ADDR16_LO_DS:
3899 case R_PPC64_ADDR24:
3900 case R_PPC64_ADDR32:
3901 case R_PPC64_UADDR16:
3902 case R_PPC64_UADDR32:
3903 case R_PPC64_UADDR64:
3905 if (h != NULL && !info->shared)
3906 /* We may need a copy reloc. */
3907 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
3909 /* Don't propagate .opd relocs. */
3910 if (NO_OPD_RELOCS && opd_sym_map != NULL)
3913 /* Don't propagate relocs that the dynamic linker won't relocate. */
3914 if ((sec->flags & SEC_ALLOC) == 0)
3917 /* If we are creating a shared library, and this is a reloc
3918 against a global symbol, or a non PC relative reloc
3919 against a local symbol, then we need to copy the reloc
3920 into the shared library. However, if we are linking with
3921 -Bsymbolic, we do not need to copy a reloc against a
3922 global symbol which is defined in an object we are
3923 including in the link (i.e., DEF_REGULAR is set). At
3924 this point we have not seen all the input files, so it is
3925 possible that DEF_REGULAR is not set now but will be set
3926 later (it is never cleared). In case of a weak definition,
3927 DEF_REGULAR may be cleared later by a strong definition in
3928 a shared library. We account for that possibility below by
3929 storing information in the dyn_relocs field of the hash
3930 table entry. A similar situation occurs when creating
3931 shared libraries and symbol visibility changes render the
3934 If on the other hand, we are creating an executable, we
3935 may need to keep relocations for symbols satisfied by a
3936 dynamic library if we manage to avoid copy relocs for the
3940 && (MUST_BE_DYN_RELOC (r_type)
3942 && (! info->symbolic
3943 || h->root.type == bfd_link_hash_defweak
3944 || (h->elf_link_hash_flags
3945 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
3946 || (ELIMINATE_COPY_RELOCS
3949 && (h->root.type == bfd_link_hash_defweak
3950 || (h->elf_link_hash_flags
3951 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
3953 struct ppc_dyn_relocs *p;
3954 struct ppc_dyn_relocs **head;
3956 /* We must copy these reloc types into the output file.
3957 Create a reloc section in dynobj and make room for
3964 name = (bfd_elf_string_from_elf_section
3966 elf_elfheader (abfd)->e_shstrndx,
3967 elf_section_data (sec)->rel_hdr.sh_name));
3971 if (strncmp (name, ".rela", 5) != 0
3972 || strcmp (bfd_get_section_name (abfd, sec),
3975 (*_bfd_error_handler)
3976 (_("%s: bad relocation section name `%s\'"),
3977 bfd_archive_filename (abfd), name);
3978 bfd_set_error (bfd_error_bad_value);
3981 dynobj = htab->elf.dynobj;
3982 sreloc = bfd_get_section_by_name (dynobj, name);
3987 sreloc = bfd_make_section (dynobj, name);
3988 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3989 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3990 if ((sec->flags & SEC_ALLOC) != 0)
3991 flags |= SEC_ALLOC | SEC_LOAD;
3993 || ! bfd_set_section_flags (dynobj, sreloc, flags)
3994 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
3997 elf_section_data (sec)->sreloc = sreloc;
4000 /* If this is a global symbol, we count the number of
4001 relocations we need for this symbol. */
4004 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
4008 /* Track dynamic relocs needed for local syms too.
4009 We really need local syms available to do this
4013 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4018 head = ((struct ppc_dyn_relocs **)
4019 &elf_section_data (s)->local_dynrel);
4023 if (p == NULL || p->sec != sec)
4025 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4036 if (!MUST_BE_DYN_RELOC (r_type))
4049 /* Return the section that should be marked against GC for a given
4053 ppc64_elf_gc_mark_hook (asection *sec,
4054 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4055 Elf_Internal_Rela *rel,
4056 struct elf_link_hash_entry *h,
4057 Elf_Internal_Sym *sym)
4059 asection *rsec = NULL;
4063 enum elf_ppc64_reloc_type r_type;
4064 struct ppc_link_hash_entry *fdh;
4066 r_type = ELF64_R_TYPE (rel->r_info);
4069 case R_PPC64_GNU_VTINHERIT:
4070 case R_PPC64_GNU_VTENTRY:
4074 switch (h->root.type)
4076 case bfd_link_hash_defined:
4077 case bfd_link_hash_defweak:
4078 fdh = (struct ppc_link_hash_entry *) h;
4080 /* Function descriptor syms cause the associated
4081 function code sym section to be marked. */
4082 if (fdh->is_func_descriptor)
4083 rsec = fdh->oh->root.u.def.section;
4085 /* Function entry syms return NULL if they are in .opd
4086 and are not ._start (or others undefined on the ld
4087 command line). Thus we avoid marking all function
4088 sections, as all functions are referenced in .opd. */
4089 else if ((fdh->oh != NULL
4090 && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry)
4091 || ppc64_elf_section_data (sec)->opd.func_sec == NULL)
4092 rsec = h->root.u.def.section;
4095 case bfd_link_hash_common:
4096 rsec = h->root.u.c.p->section;
4106 asection **opd_sym_section;
4108 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
4109 opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec;
4110 if (opd_sym_section != NULL)
4111 rsec = opd_sym_section[sym->st_value / 24];
4112 else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL)
4119 /* Update the .got, .plt. and dynamic reloc reference counts for the
4120 section being removed. */
4123 ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
4124 asection *sec, const Elf_Internal_Rela *relocs)
4126 struct ppc_link_hash_table *htab;
4127 Elf_Internal_Shdr *symtab_hdr;
4128 struct elf_link_hash_entry **sym_hashes;
4129 struct got_entry **local_got_ents;
4130 const Elf_Internal_Rela *rel, *relend;
4132 elf_section_data (sec)->local_dynrel = NULL;
4134 htab = ppc_hash_table (info);
4135 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4136 sym_hashes = elf_sym_hashes (abfd);
4137 local_got_ents = elf_local_got_ents (abfd);
4139 relend = relocs + sec->reloc_count;
4140 for (rel = relocs; rel < relend; rel++)
4142 unsigned long r_symndx;
4143 enum elf_ppc64_reloc_type r_type;
4144 struct elf_link_hash_entry *h = NULL;
4147 r_symndx = ELF64_R_SYM (rel->r_info);
4148 r_type = ELF64_R_TYPE (rel->r_info);
4149 if (r_symndx >= symtab_hdr->sh_info)
4151 struct ppc_link_hash_entry *eh;
4152 struct ppc_dyn_relocs **pp;
4153 struct ppc_dyn_relocs *p;
4155 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4156 eh = (struct ppc_link_hash_entry *) h;
4158 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4161 /* Everything must go for SEC. */
4169 case R_PPC64_GOT_TLSLD16:
4170 case R_PPC64_GOT_TLSLD16_LO:
4171 case R_PPC64_GOT_TLSLD16_HI:
4172 case R_PPC64_GOT_TLSLD16_HA:
4173 ppc64_tlsld_got (abfd)->refcount -= 1;
4174 tls_type = TLS_TLS | TLS_LD;
4177 case R_PPC64_GOT_TLSGD16:
4178 case R_PPC64_GOT_TLSGD16_LO:
4179 case R_PPC64_GOT_TLSGD16_HI:
4180 case R_PPC64_GOT_TLSGD16_HA:
4181 tls_type = TLS_TLS | TLS_GD;
4184 case R_PPC64_GOT_TPREL16_DS:
4185 case R_PPC64_GOT_TPREL16_LO_DS:
4186 case R_PPC64_GOT_TPREL16_HI:
4187 case R_PPC64_GOT_TPREL16_HA:
4188 tls_type = TLS_TLS | TLS_TPREL;
4191 case R_PPC64_GOT_DTPREL16_DS:
4192 case R_PPC64_GOT_DTPREL16_LO_DS:
4193 case R_PPC64_GOT_DTPREL16_HI:
4194 case R_PPC64_GOT_DTPREL16_HA:
4195 tls_type = TLS_TLS | TLS_DTPREL;
4199 case R_PPC64_GOT16_DS:
4200 case R_PPC64_GOT16_HA:
4201 case R_PPC64_GOT16_HI:
4202 case R_PPC64_GOT16_LO:
4203 case R_PPC64_GOT16_LO_DS:
4206 struct got_entry *ent;
4211 ent = local_got_ents[r_symndx];
4213 for (; ent != NULL; ent = ent->next)
4214 if (ent->addend == rel->r_addend
4215 && ent->owner == abfd
4216 && ent->tls_type == tls_type)
4220 if (ent->got.refcount > 0)
4221 ent->got.refcount -= 1;
4225 case R_PPC64_PLT16_HA:
4226 case R_PPC64_PLT16_HI:
4227 case R_PPC64_PLT16_LO:
4231 case R_PPC64_REL14_BRNTAKEN:
4232 case R_PPC64_REL14_BRTAKEN:
4236 struct plt_entry *ent;
4238 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4239 if (ent->addend == rel->r_addend)
4243 if (ent->plt.refcount > 0)
4244 ent->plt.refcount -= 1;
4255 /* Called via elf_link_hash_traverse to transfer dynamic linking
4256 information on function code symbol entries to their corresponding
4257 function descriptor symbol entries. */
4259 func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
4261 struct bfd_link_info *info;
4262 struct ppc_link_hash_table *htab;
4263 struct plt_entry *ent;
4264 struct ppc_link_hash_entry *fh;
4265 struct ppc_link_hash_entry *fdh;
4266 bfd_boolean force_local;
4268 fh = (struct ppc_link_hash_entry *) h;
4269 if (fh->elf.root.type == bfd_link_hash_indirect)
4272 if (fh->elf.root.type == bfd_link_hash_warning)
4273 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
4276 htab = ppc_hash_table (info);
4278 /* If this is a function code symbol, transfer dynamic linking
4279 information to the function descriptor symbol. */
4283 if (fh->elf.root.type == bfd_link_hash_undefweak
4284 && (fh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR))
4285 htab->have_undefweak = TRUE;
4287 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
4288 if (ent->plt.refcount > 0)
4291 || fh->elf.root.root.string[0] != '.'
4292 || fh->elf.root.root.string[1] == '\0')
4295 /* Find the corresponding function descriptor symbol. Create it
4296 as undefined if necessary. */
4298 fdh = get_fdh (fh, htab);
4300 while (fdh->elf.root.type == bfd_link_hash_indirect
4301 || fdh->elf.root.type == bfd_link_hash_warning)
4302 fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link;
4306 && (fh->elf.root.type == bfd_link_hash_undefined
4307 || fh->elf.root.type == bfd_link_hash_undefweak))
4311 struct bfd_link_hash_entry *bh;
4313 abfd = fh->elf.root.u.undef.abfd;
4314 newsym = bfd_make_empty_symbol (abfd);
4315 newsym->name = fh->elf.root.root.string + 1;
4316 newsym->section = bfd_und_section_ptr;
4318 newsym->flags = BSF_OBJECT;
4319 if (fh->elf.root.type == bfd_link_hash_undefweak)
4320 newsym->flags |= BSF_WEAK;
4322 bh = &fdh->elf.root;
4323 if ( !(_bfd_generic_link_add_one_symbol
4324 (info, abfd, newsym->name, newsym->flags,
4325 newsym->section, newsym->value, NULL, FALSE, FALSE, &bh)))
4329 fdh = (struct ppc_link_hash_entry *) bh;
4330 fdh->elf.elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
4332 fdh->elf.type = STT_OBJECT;
4336 && (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
4338 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
4339 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0
4340 || (fdh->elf.root.type == bfd_link_hash_undefweak
4341 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
4343 if (fdh->elf.dynindx == -1)
4344 if (! bfd_elf64_link_record_dynamic_symbol (info, &fdh->elf))
4346 fdh->elf.elf_link_hash_flags
4347 |= (fh->elf.elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR
4348 | ELF_LINK_HASH_REF_DYNAMIC
4349 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4350 | ELF_LINK_NON_GOT_REF));
4351 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
4353 fdh->elf.plt.plist = fh->elf.plt.plist;
4354 fdh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
4356 fdh->is_func_descriptor = 1;
4361 /* Now that the info is on the function descriptor, clear the
4362 function code sym info. Any function code syms for which we
4363 don't have a definition in a regular file, we force local.
4364 This prevents a shared library from exporting syms that have
4365 been imported from another library. Function code syms that
4366 are really in the library we must leave global to prevent the
4367 linker dragging in a definition from a static library. */
4370 && ((fh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4372 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4373 || (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0));
4374 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
4379 #define MIN_SAVE_FPR 14
4380 #define MAX_SAVE_FPR 31
4382 /* Called near the start of bfd_elf_size_dynamic_sections. We use
4383 this hook to a) provide some gcc support functions, and b) transfer
4384 dynamic linking information gathered so far on function code symbol
4385 entries, to their corresponding function descriptor symbol entries. */
4387 ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
4388 struct bfd_link_info *info)
4390 struct ppc_link_hash_table *htab;
4391 unsigned int lowest_savef = MAX_SAVE_FPR + 2;
4392 unsigned int lowest_restf = MAX_SAVE_FPR + 2;
4394 struct elf_link_hash_entry *h;
4398 htab = ppc_hash_table (info);
4400 if (htab->sfpr == NULL)
4401 /* We don't have any relocs. */
4404 /* First provide any missing ._savef* and ._restf* functions. */
4405 memcpy (sym, "._savef14", 10);
4406 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4408 sym[7] = i / 10 + '0';
4409 sym[8] = i % 10 + '0';
4410 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
4412 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
4414 if (lowest_savef > i)
4416 h->root.type = bfd_link_hash_defined;
4417 h->root.u.def.section = htab->sfpr;
4418 h->root.u.def.value = (i - lowest_savef) * 4;
4420 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
4421 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
4425 memcpy (sym, "._restf14", 10);
4426 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4428 sym[7] = i / 10 + '0';
4429 sym[8] = i % 10 + '0';
4430 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
4432 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
4434 if (lowest_restf > i)
4436 h->root.type = bfd_link_hash_defined;
4437 h->root.u.def.section = htab->sfpr;
4438 h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4439 + (i - lowest_restf) * 4);
4441 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
4442 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
4446 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
4448 htab->sfpr->_raw_size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4449 + (MAX_SAVE_FPR + 2 - lowest_restf) * 4);
4451 if (htab->sfpr->_raw_size == 0)
4453 if (!htab->have_undefweak)
4455 _bfd_strip_section_from_output (info, htab->sfpr);
4459 htab->sfpr->_raw_size = 4;
4462 p = bfd_alloc (htab->elf.dynobj, htab->sfpr->_raw_size);
4465 htab->sfpr->contents = p;
4467 for (i = lowest_savef; i <= MAX_SAVE_FPR; i++)
4469 unsigned int fpr = i << 21;
4470 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4471 bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p);
4474 if (lowest_savef <= MAX_SAVE_FPR)
4476 bfd_put_32 (htab->elf.dynobj, BLR, p);
4480 for (i = lowest_restf; i <= MAX_SAVE_FPR; i++)
4482 unsigned int fpr = i << 21;
4483 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4484 bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p);
4487 if (lowest_restf <= MAX_SAVE_FPR
4488 || htab->sfpr->_raw_size == 4)
4490 bfd_put_32 (htab->elf.dynobj, BLR, p);
4496 /* Adjust a symbol defined by a dynamic object and referenced by a
4497 regular object. The current definition is in some section of the
4498 dynamic object, but we're not including those sections. We have to
4499 change the definition to something the rest of the link can
4503 ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4504 struct elf_link_hash_entry *h)
4506 struct ppc_link_hash_table *htab;
4508 unsigned int power_of_two;
4510 htab = ppc_hash_table (info);
4512 /* Deal with function syms. */
4513 if (h->type == STT_FUNC
4514 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
4516 /* Clear procedure linkage table information for any symbol that
4517 won't need a .plt entry. */
4518 struct plt_entry *ent;
4519 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4520 if (ent->plt.refcount > 0)
4522 if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor
4524 || SYMBOL_CALLS_LOCAL (info, h)
4525 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4526 && h->root.type == bfd_link_hash_undefweak))
4528 h->plt.plist = NULL;
4529 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
4533 h->plt.plist = NULL;
4535 /* If this is a weak symbol, and there is a real definition, the
4536 processor independent code will have arranged for us to see the
4537 real definition first, and we can just use the same value. */
4538 if (h->weakdef != NULL)
4540 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
4541 || h->weakdef->root.type == bfd_link_hash_defweak);
4542 h->root.u.def.section = h->weakdef->root.u.def.section;
4543 h->root.u.def.value = h->weakdef->root.u.def.value;
4544 if (ELIMINATE_COPY_RELOCS)
4545 h->elf_link_hash_flags
4546 = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
4547 | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
4551 /* If we are creating a shared library, we must presume that the
4552 only references to the symbol are via the global offset table.
4553 For such cases we need not do anything here; the relocations will
4554 be handled correctly by relocate_section. */
4558 /* If there are no references to this symbol that do not use the
4559 GOT, we don't need to generate a copy reloc. */
4560 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
4563 if (ELIMINATE_COPY_RELOCS)
4565 struct ppc_link_hash_entry * eh;
4566 struct ppc_dyn_relocs *p;
4568 eh = (struct ppc_link_hash_entry *) h;
4569 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4571 s = p->sec->output_section;
4572 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4576 /* If we didn't find any dynamic relocs in read-only sections, then
4577 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4580 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
4585 if (h->plt.plist != NULL)
4587 /* We should never get here, but unfortunately there are versions
4588 of gcc out there that improperly (for this ABI) put initialized
4589 function pointers, vtable refs and suchlike in read-only
4590 sections. Allow them to proceed, but warn that this might
4591 break at runtime. */
4592 (*_bfd_error_handler)
4593 (_("copy reloc against `%s' requires lazy plt linking; "
4594 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
4595 h->root.root.string);
4598 /* This is a reference to a symbol defined by a dynamic object which
4599 is not a function. */
4601 /* We must allocate the symbol in our .dynbss section, which will
4602 become part of the .bss section of the executable. There will be
4603 an entry for this symbol in the .dynsym section. The dynamic
4604 object will contain position independent code, so all references
4605 from the dynamic object to this symbol will go through the global
4606 offset table. The dynamic linker will use the .dynsym entry to
4607 determine the address it must put in the global offset table, so
4608 both the dynamic object and the regular object will refer to the
4609 same memory location for the variable. */
4611 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4612 to copy the initial value out of the dynamic object and into the
4613 runtime process image. We need to remember the offset into the
4614 .rela.bss section we are going to use. */
4615 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4617 htab->relbss->_raw_size += sizeof (Elf64_External_Rela);
4618 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
4621 /* We need to figure out the alignment required for this symbol. I
4622 have no idea how ELF linkers handle this. */
4623 power_of_two = bfd_log2 (h->size);
4624 if (power_of_two > 4)
4627 /* Apply the required alignment. */
4629 s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two));
4630 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
4632 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
4636 /* Define the symbol as being at this point in the section. */
4637 h->root.u.def.section = s;
4638 h->root.u.def.value = s->_raw_size;
4640 /* Increment the section size to make room for the symbol. */
4641 s->_raw_size += h->size;
4646 /* If given a function descriptor symbol, hide both the function code
4647 sym and the descriptor. */
4649 ppc64_elf_hide_symbol (struct bfd_link_info *info,
4650 struct elf_link_hash_entry *h,
4651 bfd_boolean force_local)
4653 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
4655 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
4657 struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh;
4662 struct ppc_link_hash_table *htab;
4665 /* We aren't supposed to use alloca in BFD because on
4666 systems which do not have alloca the version in libiberty
4667 calls xmalloc, which might cause the program to crash
4668 when it runs out of memory. This function doesn't have a
4669 return status, so there's no way to gracefully return an
4670 error. So cheat. We know that string[-1] can be safely
4671 dereferenced; It's either a string in an ELF string
4672 table, or allocated in an objalloc structure. */
4674 p = h->root.root.string - 1;
4677 htab = ppc_hash_table (info);
4678 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
4681 /* Unfortunately, if it so happens that the string we were
4682 looking for was allocated immediately before this string,
4683 then we overwrote the string terminator. That's the only
4684 reason the lookup should fail. */
4687 q = h->root.root.string + strlen (h->root.root.string);
4688 while (q >= h->root.root.string && *q == *p)
4690 if (q < h->root.root.string && *p == '.')
4691 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
4695 ((struct ppc_link_hash_entry *) h)->oh = fh;
4696 ((struct ppc_link_hash_entry *) fh)->oh = h;
4700 _bfd_elf_link_hash_hide_symbol (info, fh, force_local);
4705 get_sym_h (struct elf_link_hash_entry **hp, Elf_Internal_Sym **symp,
4706 asection **symsecp, char **tls_maskp, Elf_Internal_Sym **locsymsp,
4707 unsigned long r_symndx, bfd *ibfd)
4709 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4711 if (r_symndx >= symtab_hdr->sh_info)
4713 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
4714 struct elf_link_hash_entry *h;
4716 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4717 while (h->root.type == bfd_link_hash_indirect
4718 || h->root.type == bfd_link_hash_warning)
4719 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4727 if (symsecp != NULL)
4729 asection *symsec = NULL;
4730 if (h->root.type == bfd_link_hash_defined
4731 || h->root.type == bfd_link_hash_defweak)
4732 symsec = h->root.u.def.section;
4736 if (tls_maskp != NULL)
4738 struct ppc_link_hash_entry *eh;
4740 eh = (struct ppc_link_hash_entry *) h;
4741 *tls_maskp = &eh->tls_mask;
4746 Elf_Internal_Sym *sym;
4747 Elf_Internal_Sym *locsyms = *locsymsp;
4749 if (locsyms == NULL)
4751 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4752 if (locsyms == NULL)
4753 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4754 symtab_hdr->sh_info,
4755 0, NULL, NULL, NULL);
4756 if (locsyms == NULL)
4758 *locsymsp = locsyms;
4760 sym = locsyms + r_symndx;
4768 if (symsecp != NULL)
4770 asection *symsec = NULL;
4771 if ((sym->st_shndx != SHN_UNDEF
4772 && sym->st_shndx < SHN_LORESERVE)
4773 || sym->st_shndx > SHN_HIRESERVE)
4774 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
4778 if (tls_maskp != NULL)
4780 struct got_entry **lgot_ents;
4784 lgot_ents = elf_local_got_ents (ibfd);
4785 if (lgot_ents != NULL)
4787 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
4788 tls_mask = &lgot_masks[r_symndx];
4790 *tls_maskp = tls_mask;
4796 /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
4797 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
4798 type suitable for optimization, and 1 otherwise. */
4801 get_tls_mask (char **tls_maskp, Elf_Internal_Sym **locsymsp,
4802 const Elf_Internal_Rela *rel, bfd *ibfd)
4804 unsigned long r_symndx;
4805 unsigned int next_r;
4806 struct elf_link_hash_entry *h;
4807 Elf_Internal_Sym *sym;
4811 r_symndx = ELF64_R_SYM (rel->r_info);
4812 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
4815 if ((*tls_maskp != NULL && **tls_maskp != 0)
4817 || ppc64_elf_section_data (sec)->t_symndx == NULL)
4820 /* Look inside a TOC section too. */
4823 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
4824 off = h->root.u.def.value;
4827 off = sym->st_value;
4828 off += rel->r_addend;
4829 BFD_ASSERT (off % 8 == 0);
4830 r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8];
4831 next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1];
4832 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
4835 || h->root.type == bfd_link_hash_defined
4836 || h->root.type == bfd_link_hash_defweak)
4838 if (next_r == (unsigned) -1)
4840 if (next_r == (unsigned) -2
4842 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
4849 ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info)
4853 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4856 Elf_Internal_Rela *relstart, *rel, *relend;
4857 Elf_Internal_Shdr *symtab_hdr;
4858 Elf_Internal_Sym *local_syms;
4859 struct elf_link_hash_entry **sym_hashes;
4863 bfd_boolean need_edit;
4865 sec = bfd_get_section_by_name (ibfd, ".opd");
4869 amt = sec->_raw_size * sizeof (long) / 24;
4870 adjust = ppc64_elf_section_data (sec)->opd.adjust;
4873 /* Must be a ld -r link. ie. check_relocs hasn't been
4875 adjust = bfd_zalloc (obfd, amt);
4876 ppc64_elf_section_data (sec)->opd.adjust = adjust;
4878 memset (adjust, 0, amt);
4880 if (sec->output_section == bfd_abs_section_ptr)
4883 /* Look through the section relocs. */
4884 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
4888 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4889 sym_hashes = elf_sym_hashes (ibfd);
4891 /* Read the relocations. */
4892 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
4894 if (relstart == NULL)
4897 /* First run through the relocs to check they are sane, and to
4898 determine whether we need to edit this opd section. */
4901 relend = relstart + sec->reloc_count;
4902 for (rel = relstart; rel < relend; )
4904 enum elf_ppc64_reloc_type r_type;
4905 unsigned long r_symndx;
4907 struct elf_link_hash_entry *h;
4908 Elf_Internal_Sym *sym;
4910 /* .opd contains a regular array of 24 byte entries. We're
4911 only interested in the reloc pointing to a function entry
4913 if (rel->r_offset != offset
4914 || rel + 1 >= relend
4915 || (rel + 1)->r_offset != offset + 8)
4917 /* If someone messes with .opd alignment then after a
4918 "ld -r" we might have padding in the middle of .opd.
4919 Also, there's nothing to prevent someone putting
4920 something silly in .opd with the assembler. No .opd
4921 optimization for them! */
4922 (*_bfd_error_handler)
4923 (_("%s: .opd is not a regular array of opd entries"),
4924 bfd_archive_filename (ibfd));
4929 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
4930 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
4932 (*_bfd_error_handler)
4933 (_("%s: unexpected reloc type %u in .opd section"),
4934 bfd_archive_filename (ibfd), r_type);
4939 r_symndx = ELF64_R_SYM (rel->r_info);
4940 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
4944 if (sym_sec == NULL || sym_sec->owner == NULL)
4946 const char *sym_name;
4948 sym_name = h->root.root.string;
4950 sym_name = bfd_elf_local_sym_name (ibfd, sym);
4952 (*_bfd_error_handler)
4953 (_("%s: undefined sym `%s' in .opd section"),
4954 bfd_archive_filename (ibfd),
4960 /* opd entries are always for functions defined in the
4961 current input bfd. If the symbol isn't defined in the
4962 input bfd, then we won't be using the function in this
4963 bfd; It must be defined in a linkonce section in another
4964 bfd, or is weak. It's also possible that we are
4965 discarding the function due to a linker script /DISCARD/,
4966 which we test for via the output_section. */
4967 if (sym_sec->owner != ibfd
4968 || sym_sec->output_section == bfd_abs_section_ptr)
4973 /* Allow for the possibility of a reloc on the third word. */
4975 && rel->r_offset == offset - 8)
4981 Elf_Internal_Rela *write_rel;
4982 bfd_byte *rptr, *wptr;
4985 /* This seems a waste of time as input .opd sections are all
4986 zeros as generated by gcc, but I suppose there's no reason
4987 this will always be so. We might start putting something in
4988 the third word of .opd entries. */
4989 if ((sec->flags & SEC_IN_MEMORY) == 0)
4991 bfd_byte *loc = bfd_alloc (ibfd, sec->_raw_size);
4993 || !bfd_get_section_contents (ibfd, sec, loc, 0,
4997 if (local_syms != NULL
4998 && symtab_hdr->contents != (unsigned char *) local_syms)
5000 if (elf_section_data (sec)->relocs != relstart)
5004 sec->contents = loc;
5005 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
5008 elf_section_data (sec)->relocs = relstart;
5010 wptr = sec->contents;
5011 rptr = sec->contents;
5012 write_rel = relstart;
5015 for (rel = relstart; rel < relend; rel++)
5017 unsigned long r_symndx;
5019 struct elf_link_hash_entry *h;
5020 Elf_Internal_Sym *sym;
5022 r_symndx = ELF64_R_SYM (rel->r_info);
5023 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
5027 if (rel->r_offset == offset)
5029 struct ppc_link_hash_entry *fdh = NULL;
5031 fdh = get_fdh ((struct ppc_link_hash_entry *) h,
5032 ppc_hash_table (info));
5034 skip = (sym_sec->owner != ibfd
5035 || sym_sec->output_section == bfd_abs_section_ptr);
5038 if (h != NULL && sym_sec->owner == ibfd)
5040 /* Arrange for the function descriptor sym
5042 fdh->elf.root.u.def.value = 0;
5043 fdh->elf.root.u.def.section = sym_sec;
5048 /* We'll be keeping this opd entry. */
5052 /* Redefine the function descriptor symbol
5053 to this location in the opd section.
5054 We've checked above that opd relocs are
5056 fdh->elf.root.u.def.value = wptr - sec->contents;
5060 /* Local syms are a bit tricky. We could
5061 tweak them as they can be cached, but
5062 we'd need to look through the local syms
5063 for the function descriptor sym which we
5064 don't have at the moment. So keep an
5065 array of adjustments. */
5066 adjust[rel->r_offset / 24] = wptr - rptr;
5070 memcpy (wptr, rptr, 24);
5079 BFD_ASSERT (MUST_BE_DYN_RELOC (ELF64_R_TYPE (rel->r_info)));
5082 /* We won't be needing dynamic relocs here. */
5083 struct ppc_dyn_relocs **pp;
5084 struct ppc_dyn_relocs *p;
5087 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
5088 else if (sym_sec != NULL)
5089 pp = ((struct ppc_dyn_relocs **)
5090 &elf_section_data (sym_sec)->local_dynrel);
5092 pp = ((struct ppc_dyn_relocs **)
5093 &elf_section_data (sec)->local_dynrel);
5094 while ((p = *pp) != NULL)
5109 /* We need to adjust any reloc offsets to point to the
5110 new opd entries. While we're at it, we may as well
5111 remove redundant relocs. */
5112 rel->r_offset += wptr - rptr;
5113 if (write_rel != rel)
5114 memcpy (write_rel, rel, sizeof (*rel));
5119 sec->_cooked_size = wptr - sec->contents;
5120 sec->reloc_count = write_rel - relstart;
5121 /* Fudge the size too, as this is used later in
5122 elf_bfd_final_link if we are emitting relocs. */
5123 elf_section_data (sec)->rel_hdr.sh_size
5124 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
5125 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
5127 else if (elf_section_data (sec)->relocs != relstart)
5130 if (local_syms != NULL
5131 && symtab_hdr->contents != (unsigned char *) local_syms)
5133 if (!info->keep_memory)
5136 symtab_hdr->contents = (unsigned char *) local_syms;
5143 /* Set htab->tls_sec. */
5146 ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
5149 struct ppc_link_hash_table *htab;
5151 for (tls = obfd->sections; tls != NULL; tls = tls->next)
5152 if ((tls->flags & (SEC_THREAD_LOCAL | SEC_LOAD))
5153 == (SEC_THREAD_LOCAL | SEC_LOAD))
5156 htab = ppc_hash_table (info);
5157 htab->tls_sec = tls;
5159 if (htab->tls_get_addr != NULL)
5161 struct elf_link_hash_entry *h = htab->tls_get_addr;
5163 while (h->root.type == bfd_link_hash_indirect
5164 || h->root.type == bfd_link_hash_warning)
5165 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5167 htab->tls_get_addr = h;
5173 /* Run through all the TLS relocs looking for optimization
5174 opportunities. The linker has been hacked (see ppc64elf.em) to do
5175 a preliminary section layout so that we know the TLS segment
5176 offsets. We can't optimize earlier because some optimizations need
5177 to know the tp offset, and we need to optimize before allocating
5178 dynamic relocations. */
5181 ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
5185 struct ppc_link_hash_table *htab;
5187 if (info->relocatable || info->shared)
5190 htab = ppc_hash_table (info);
5191 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5193 Elf_Internal_Sym *locsyms = NULL;
5195 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5196 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5198 Elf_Internal_Rela *relstart, *rel, *relend;
5199 int expecting_tls_get_addr;
5201 /* Read the relocations. */
5202 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5204 if (relstart == NULL)
5207 expecting_tls_get_addr = 0;
5208 relend = relstart + sec->reloc_count;
5209 for (rel = relstart; rel < relend; rel++)
5211 enum elf_ppc64_reloc_type r_type;
5212 unsigned long r_symndx;
5213 struct elf_link_hash_entry *h;
5214 Elf_Internal_Sym *sym;
5217 char tls_set, tls_clear, tls_type = 0;
5219 bfd_boolean ok_tprel, is_local;
5221 r_symndx = ELF64_R_SYM (rel->r_info);
5222 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
5226 if (elf_section_data (sec)->relocs != relstart)
5229 && (elf_tdata (ibfd)->symtab_hdr.contents
5230 != (unsigned char *) locsyms))
5237 if (h->root.type != bfd_link_hash_defined
5238 && h->root.type != bfd_link_hash_defweak)
5240 value = h->root.u.def.value;
5243 value = sym->st_value;
5248 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
5251 value += sym_sec->output_offset;
5252 value += sym_sec->output_section->vma;
5253 value -= htab->tls_sec->vma;
5254 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
5255 < (bfd_vma) 1 << 32);
5258 r_type = ELF64_R_TYPE (rel->r_info);
5261 case R_PPC64_GOT_TLSLD16:
5262 case R_PPC64_GOT_TLSLD16_LO:
5263 case R_PPC64_GOT_TLSLD16_HI:
5264 case R_PPC64_GOT_TLSLD16_HA:
5265 /* These relocs should never be against a symbol
5266 defined in a shared lib. Leave them alone if
5267 that turns out to be the case. */
5268 ppc64_tlsld_got (ibfd)->refcount -= 1;
5275 tls_type = TLS_TLS | TLS_LD;
5276 expecting_tls_get_addr = 1;
5279 case R_PPC64_GOT_TLSGD16:
5280 case R_PPC64_GOT_TLSGD16_LO:
5281 case R_PPC64_GOT_TLSGD16_HI:
5282 case R_PPC64_GOT_TLSGD16_HA:
5288 tls_set = TLS_TLS | TLS_TPRELGD;
5290 tls_type = TLS_TLS | TLS_GD;
5291 expecting_tls_get_addr = 1;
5294 case R_PPC64_GOT_TPREL16_DS:
5295 case R_PPC64_GOT_TPREL16_LO_DS:
5296 case R_PPC64_GOT_TPREL16_HI:
5297 case R_PPC64_GOT_TPREL16_HA:
5298 expecting_tls_get_addr = 0;
5303 tls_clear = TLS_TPREL;
5304 tls_type = TLS_TLS | TLS_TPREL;
5311 case R_PPC64_REL14_BRTAKEN:
5312 case R_PPC64_REL14_BRNTAKEN:
5315 && h == htab->tls_get_addr)
5317 if (!expecting_tls_get_addr
5319 && ((ELF64_R_TYPE (rel[-1].r_info)
5321 || (ELF64_R_TYPE (rel[-1].r_info)
5322 == R_PPC64_TOC16_LO)))
5324 /* Check for toc tls entries. */
5328 retval = get_tls_mask (&toc_tls, &locsyms,
5332 if (toc_tls != NULL)
5333 expecting_tls_get_addr = retval > 1;
5336 if (expecting_tls_get_addr)
5338 struct plt_entry *ent;
5339 for (ent = h->plt.plist; ent; ent = ent->next)
5340 if (ent->addend == 0)
5342 if (ent->plt.refcount > 0)
5343 ent->plt.refcount -= 1;
5348 expecting_tls_get_addr = 0;
5351 case R_PPC64_TPREL64:
5352 expecting_tls_get_addr = 0;
5356 tls_set = TLS_EXPLICIT;
5357 tls_clear = TLS_TPREL;
5363 case R_PPC64_DTPMOD64:
5364 expecting_tls_get_addr = 0;
5365 if (rel + 1 < relend
5367 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
5368 && rel[1].r_offset == rel->r_offset + 8)
5372 tls_set = TLS_EXPLICIT | TLS_GD;
5375 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
5384 tls_set = TLS_EXPLICIT;
5390 expecting_tls_get_addr = 0;
5394 if ((tls_set & TLS_EXPLICIT) == 0)
5396 struct got_entry *ent;
5398 /* Adjust got entry for this reloc. */
5402 ent = elf_local_got_ents (ibfd)[r_symndx];
5404 for (; ent != NULL; ent = ent->next)
5405 if (ent->addend == rel->r_addend
5406 && ent->owner == ibfd
5407 && ent->tls_type == tls_type)
5414 /* We managed to get rid of a got entry. */
5415 if (ent->got.refcount > 0)
5416 ent->got.refcount -= 1;
5421 struct ppc_link_hash_entry * eh;
5422 struct ppc_dyn_relocs **pp;
5423 struct ppc_dyn_relocs *p;
5425 /* Adjust dynamic relocs. */
5426 eh = (struct ppc_link_hash_entry *) h;
5427 for (pp = &eh->dyn_relocs;
5432 /* If we got rid of a DTPMOD/DTPREL reloc
5433 pair then we'll lose one or two dyn
5435 if (tls_set == (TLS_EXPLICIT | TLS_GD))
5444 *tls_mask |= tls_set;
5445 *tls_mask &= ~tls_clear;
5448 if (elf_section_data (sec)->relocs != relstart)
5453 && (elf_tdata (ibfd)->symtab_hdr.contents
5454 != (unsigned char *) locsyms))
5456 if (!info->keep_memory)
5459 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
5465 /* This is the condition under which ppc64_elf_finish_dynamic_symbol
5466 will be called from elflink.h. If elflink.h doesn't call our
5467 finish_dynamic_symbol routine, we'll need to do something about
5468 initializing any .plt and .got entries in ppc64_elf_relocate_section. */
5469 #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
5472 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
5473 && ((H)->dynindx != -1 \
5474 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
5476 /* Allocate space in .plt, .got and associated reloc sections for
5480 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5482 struct bfd_link_info *info;
5483 struct ppc_link_hash_table *htab;
5485 struct ppc_link_hash_entry *eh;
5486 struct ppc_dyn_relocs *p;
5487 struct got_entry *gent;
5489 if (h->root.type == bfd_link_hash_indirect)
5492 if (h->root.type == bfd_link_hash_warning)
5493 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5495 info = (struct bfd_link_info *) inf;
5496 htab = ppc_hash_table (info);
5498 if (htab->elf.dynamic_sections_created
5500 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
5502 struct plt_entry *pent;
5503 bfd_boolean doneone = FALSE;
5504 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
5505 if (pent->plt.refcount > 0)
5507 BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor);
5509 /* If this is the first .plt entry, make room for the special
5512 if (s->_raw_size == 0)
5513 s->_raw_size += PLT_INITIAL_ENTRY_SIZE;
5515 pent->plt.offset = s->_raw_size;
5517 /* Make room for this entry. */
5518 s->_raw_size += PLT_ENTRY_SIZE;
5520 /* Make room for the .glink code. */
5522 if (s->_raw_size == 0)
5523 s->_raw_size += GLINK_CALL_STUB_SIZE;
5524 /* We need bigger stubs past index 32767. */
5525 if (s->_raw_size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
5527 s->_raw_size += 2*4;
5529 /* We also need to make an entry in the .rela.plt section. */
5531 s->_raw_size += sizeof (Elf64_External_Rela);
5535 pent->plt.offset = (bfd_vma) -1;
5538 h->plt.plist = NULL;
5539 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5544 h->plt.plist = NULL;
5545 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5548 eh = (struct ppc_link_hash_entry *) h;
5549 /* Run through the TLS GD got entries first if we're changing them
5551 if ((eh->tls_mask & TLS_TPRELGD) != 0)
5552 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5553 if (gent->got.refcount > 0
5554 && (gent->tls_type & TLS_GD) != 0)
5556 /* This was a GD entry that has been converted to TPREL. If
5557 there happens to be a TPREL entry we can use that one. */
5558 struct got_entry *ent;
5559 for (ent = h->got.glist; ent != NULL; ent = ent->next)
5560 if (ent->got.refcount > 0
5561 && (ent->tls_type & TLS_TPREL) != 0
5562 && ent->addend == gent->addend
5563 && ent->owner == gent->owner)
5565 gent->got.refcount = 0;
5569 /* If not, then we'll be using our own TPREL entry. */
5570 if (gent->got.refcount != 0)
5571 gent->tls_type = TLS_TLS | TLS_TPREL;
5574 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5575 if (gent->got.refcount > 0)
5579 /* Make sure this symbol is output as a dynamic symbol.
5580 Undefined weak syms won't yet be marked as dynamic,
5581 nor will all TLS symbols. */
5582 if (h->dynindx == -1
5583 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5585 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
5589 if ((gent->tls_type & TLS_LD) != 0
5590 && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
5592 gent->got.offset = ppc64_tlsld_got (gent->owner)->offset;
5596 s = ppc64_elf_tdata (gent->owner)->got;
5597 gent->got.offset = s->_raw_size;
5599 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
5600 dyn = htab->elf.dynamic_sections_created;
5602 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5603 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
5604 || h->root.type != bfd_link_hash_undefweak))
5605 ppc64_elf_tdata (gent->owner)->relgot->_raw_size
5606 += (gent->tls_type & eh->tls_mask & TLS_GD
5607 ? 2 * sizeof (Elf64_External_Rela)
5608 : sizeof (Elf64_External_Rela));
5611 gent->got.offset = (bfd_vma) -1;
5613 if (eh->dyn_relocs == NULL)
5616 /* In the shared -Bsymbolic case, discard space allocated for
5617 dynamic pc-relative relocs against symbols which turn out to be
5618 defined in regular objects. For the normal shared case, discard
5619 space for relocs that have become local due to symbol visibility
5624 /* Relocs that use pc_count are those that appear on a call insn,
5625 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
5626 generated via assembly. We want calls to protected symbols to
5627 resolve directly to the function rather than going via the plt.
5628 If people want function pointer comparisons to work as expected
5629 then they should avoid writing weird assembly. */
5630 if (SYMBOL_CALLS_LOCAL (info, h))
5632 struct ppc_dyn_relocs **pp;
5634 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5636 p->count -= p->pc_count;
5645 /* Also discard relocs on undefined weak syms with non-default
5647 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5648 && h->root.type == bfd_link_hash_undefweak)
5649 eh->dyn_relocs = NULL;
5651 else if (ELIMINATE_COPY_RELOCS)
5653 /* For the non-shared case, discard space for relocs against
5654 symbols which turn out to need copy relocs or are not
5657 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
5658 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
5659 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
5661 /* Make sure this symbol is output as a dynamic symbol.
5662 Undefined weak syms won't yet be marked as dynamic. */
5663 if (h->dynindx == -1
5664 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5666 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
5670 /* If that succeeded, we know we'll be keeping all the
5672 if (h->dynindx != -1)
5676 eh->dyn_relocs = NULL;
5681 /* Finally, allocate space. */
5682 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5684 asection *sreloc = elf_section_data (p->sec)->sreloc;
5685 sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela);
5691 /* Find any dynamic relocs that apply to read-only sections. */
5694 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5696 struct ppc_link_hash_entry *eh;
5697 struct ppc_dyn_relocs *p;
5699 if (h->root.type == bfd_link_hash_warning)
5700 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5702 eh = (struct ppc_link_hash_entry *) h;
5703 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5705 asection *s = p->sec->output_section;
5707 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5709 struct bfd_link_info *info = inf;
5711 info->flags |= DF_TEXTREL;
5713 /* Not an error, just cut short the traversal. */
5720 /* Set the sizes of the dynamic sections. */
5723 ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5724 struct bfd_link_info *info)
5726 struct ppc_link_hash_table *htab;
5732 htab = ppc_hash_table (info);
5733 dynobj = htab->elf.dynobj;
5737 if (htab->elf.dynamic_sections_created)
5739 /* Set the contents of the .interp section to the interpreter. */
5740 if (info->executable)
5742 s = bfd_get_section_by_name (dynobj, ".interp");
5745 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
5746 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5750 /* Set up .got offsets for local syms, and space for local dynamic
5752 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5754 struct got_entry **lgot_ents;
5755 struct got_entry **end_lgot_ents;
5757 bfd_size_type locsymcount;
5758 Elf_Internal_Shdr *symtab_hdr;
5761 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
5764 if (ppc64_tlsld_got (ibfd)->refcount > 0)
5766 s = ppc64_elf_tdata (ibfd)->got;
5767 ppc64_tlsld_got (ibfd)->offset = s->_raw_size;
5771 srel = ppc64_elf_tdata (ibfd)->relgot;
5772 srel->_raw_size += sizeof (Elf64_External_Rela);
5776 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
5778 for (s = ibfd->sections; s != NULL; s = s->next)
5780 struct ppc_dyn_relocs *p;
5782 for (p = *((struct ppc_dyn_relocs **)
5783 &elf_section_data (s)->local_dynrel);
5787 if (!bfd_is_abs_section (p->sec)
5788 && bfd_is_abs_section (p->sec->output_section))
5790 /* Input section has been discarded, either because
5791 it is a copy of a linkonce section or due to
5792 linker script /DISCARD/, so we'll be discarding
5795 else if (p->count != 0)
5797 srel = elf_section_data (p->sec)->sreloc;
5798 srel->_raw_size += p->count * sizeof (Elf64_External_Rela);
5799 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
5800 info->flags |= DF_TEXTREL;
5805 lgot_ents = elf_local_got_ents (ibfd);
5809 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5810 locsymcount = symtab_hdr->sh_info;
5811 end_lgot_ents = lgot_ents + locsymcount;
5812 lgot_masks = (char *) end_lgot_ents;
5813 s = ppc64_elf_tdata (ibfd)->got;
5814 srel = ppc64_elf_tdata (ibfd)->relgot;
5815 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
5817 struct got_entry *ent;
5819 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
5820 if (ent->got.refcount > 0)
5822 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
5824 if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1)
5826 ppc64_tlsld_got (ibfd)->offset = s->_raw_size;
5829 srel->_raw_size += sizeof (Elf64_External_Rela);
5831 ent->got.offset = ppc64_tlsld_got (ibfd)->offset;
5835 ent->got.offset = s->_raw_size;
5836 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
5840 srel->_raw_size += 2 * sizeof (Elf64_External_Rela);
5846 srel->_raw_size += sizeof (Elf64_External_Rela);
5851 ent->got.offset = (bfd_vma) -1;
5855 /* Allocate global sym .plt and .got entries, and space for global
5856 sym dynamic relocs. */
5857 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
5859 /* We now have determined the sizes of the various dynamic sections.
5860 Allocate memory for them. */
5862 for (s = dynobj->sections; s != NULL; s = s->next)
5864 if ((s->flags & SEC_LINKER_CREATED) == 0)
5867 /* Reset _cooked_size since prelim layout will set it wrongly,
5868 and a non-zero _cooked_size sticks. */
5869 s->_cooked_size = 0;
5871 if (s == htab->brlt || s == htab->relbrlt)
5872 /* These haven't been allocated yet; don't strip. */
5874 else if (s == htab->got
5876 || s == htab->glink)
5878 /* Strip this section if we don't need it; see the
5881 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
5883 if (s->_raw_size == 0)
5885 /* If we don't need this section, strip it from the
5886 output file. This is mostly to handle .rela.bss and
5887 .rela.plt. We must create both sections in
5888 create_dynamic_sections, because they must be created
5889 before the linker maps input sections to output
5890 sections. The linker does that before
5891 adjust_dynamic_symbol is called, and it is that
5892 function which decides whether anything needs to go
5893 into these sections. */
5897 if (s != htab->relplt)
5900 /* We use the reloc_count field as a counter if we need
5901 to copy relocs into the output file. */
5907 /* It's not one of our sections, so don't allocate space. */
5911 if (s->_raw_size == 0)
5913 _bfd_strip_section_from_output (info, s);
5917 /* .plt is in the bss section. We don't initialise it. */
5918 if ((s->flags & SEC_LOAD) == 0)
5921 /* Allocate memory for the section contents. We use bfd_zalloc
5922 here in case unused entries are not reclaimed before the
5923 section's contents are written out. This should not happen,
5924 but this way if it does we get a R_PPC64_NONE reloc in .rela
5925 sections instead of garbage.
5926 We also rely on the section contents being zero when writing
5928 s->contents = bfd_zalloc (dynobj, s->_raw_size);
5929 if (s->contents == NULL)
5933 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5935 s = ppc64_elf_tdata (ibfd)->got;
5936 if (s != NULL && s != htab->got)
5938 s->_cooked_size = 0;
5939 if (s->_raw_size == 0)
5940 _bfd_strip_section_from_output (info, s);
5943 s->contents = bfd_zalloc (ibfd, s->_raw_size);
5944 if (s->contents == NULL)
5948 s = ppc64_elf_tdata (ibfd)->relgot;
5951 s->_cooked_size = 0;
5952 if (s->_raw_size == 0)
5953 _bfd_strip_section_from_output (info, s);
5956 s->contents = bfd_zalloc (ibfd, s->_raw_size);
5957 if (s->contents == NULL)
5965 if (htab->elf.dynamic_sections_created)
5967 /* Add some entries to the .dynamic section. We fill in the
5968 values later, in ppc64_elf_finish_dynamic_sections, but we
5969 must add the entries now so that we get the correct size for
5970 the .dynamic section. The DT_DEBUG entry is filled in by the
5971 dynamic linker and used by the debugger. */
5972 #define add_dynamic_entry(TAG, VAL) \
5973 bfd_elf64_add_dynamic_entry (info, (TAG), (VAL))
5975 if (info->executable)
5977 if (!add_dynamic_entry (DT_DEBUG, 0))
5981 if (htab->plt != NULL && htab->plt->_raw_size != 0)
5983 if (!add_dynamic_entry (DT_PLTGOT, 0)
5984 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5985 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5986 || !add_dynamic_entry (DT_JMPREL, 0)
5987 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
5993 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
5994 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
6000 if (!add_dynamic_entry (DT_RELA, 0)
6001 || !add_dynamic_entry (DT_RELASZ, 0)
6002 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
6005 /* If any dynamic relocs apply to a read-only section,
6006 then we need a DT_TEXTREL entry. */
6007 if ((info->flags & DF_TEXTREL) == 0)
6008 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
6010 if ((info->flags & DF_TEXTREL) != 0)
6012 if (!add_dynamic_entry (DT_TEXTREL, 0))
6017 #undef add_dynamic_entry
6022 /* Determine the type of stub needed, if any, for a call. */
6024 static inline enum ppc_stub_type
6025 ppc_type_of_stub (asection *input_sec,
6026 const Elf_Internal_Rela *rel,
6027 struct ppc_link_hash_entry **hash,
6028 bfd_vma destination)
6030 struct ppc_link_hash_entry *h = *hash;
6032 bfd_vma branch_offset;
6033 bfd_vma max_branch_offset;
6034 enum elf_ppc64_reloc_type r_type;
6039 && h->oh->dynindx != -1)
6041 struct plt_entry *ent;
6042 for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next)
6043 if (ent->addend == rel->r_addend
6044 && ent->plt.offset != (bfd_vma) -1)
6046 *hash = (struct ppc_link_hash_entry *) h->oh;
6047 return ppc_stub_plt_call;
6051 if (h->elf.root.type != bfd_link_hash_defined
6052 && h->elf.root.type != bfd_link_hash_defweak)
6053 return ppc_stub_none;
6056 /* Determine where the call point is. */
6057 location = (input_sec->output_offset
6058 + input_sec->output_section->vma
6061 branch_offset = destination - location;
6062 r_type = ELF64_R_TYPE (rel->r_info);
6064 /* Determine if a long branch stub is needed. */
6065 max_branch_offset = 1 << 25;
6066 if (r_type != R_PPC64_REL24)
6067 max_branch_offset = 1 << 15;
6069 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
6070 /* We need a stub. Figure out whether a long_branch or plt_branch
6072 return ppc_stub_long_branch;
6074 return ppc_stub_none;
6077 /* Build a .plt call stub. */
6079 static inline bfd_byte *
6080 build_plt_stub (bfd *obfd, bfd_byte *p, int offset)
6082 #define PPC_LO(v) ((v) & 0xffff)
6083 #define PPC_HI(v) (((v) >> 16) & 0xffff)
6084 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
6086 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
6087 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
6088 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6089 if (PPC_HA (offset + 8) != PPC_HA (offset))
6090 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
6092 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4;
6093 if (PPC_HA (offset + 8) != PPC_HA (offset))
6094 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
6096 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
6097 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6098 bfd_put_32 (obfd, BCTR, p), p += 4;
6103 ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
6105 struct ppc_stub_hash_entry *stub_entry;
6106 struct ppc_branch_hash_entry *br_entry;
6107 struct bfd_link_info *info;
6108 struct ppc_link_hash_table *htab;
6112 struct plt_entry *ent;
6116 /* Massage our args to the form they really have. */
6117 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
6120 htab = ppc_hash_table (info);
6122 /* Make a note of the offset within the stubs for this entry. */
6123 stub_entry->stub_offset = stub_entry->stub_sec->_cooked_size;
6124 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
6126 htab->stub_count[stub_entry->stub_type - 1] += 1;
6127 switch (stub_entry->stub_type)
6129 case ppc_stub_long_branch:
6130 case ppc_stub_long_branch_r2off:
6131 /* Branches are relative. This is where we are going to. */
6132 off = (stub_entry->target_value
6133 + stub_entry->target_section->output_offset
6134 + stub_entry->target_section->output_section->vma);
6136 /* And this is where we are coming from. */
6137 off -= (stub_entry->stub_offset
6138 + stub_entry->stub_sec->output_offset
6139 + stub_entry->stub_sec->output_section->vma);
6141 if (stub_entry->stub_type != ppc_stub_long_branch_r2off)
6147 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
6148 - htab->stub_group[stub_entry->id_sec->id].toc_off);
6149 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
6151 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
6153 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
6158 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
6160 BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26));
6163 case ppc_stub_plt_branch:
6164 case ppc_stub_plt_branch_r2off:
6165 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6166 stub_entry->root.string + 9,
6168 if (br_entry == NULL)
6170 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
6171 stub_entry->root.string + 9);
6172 htab->stub_error = TRUE;
6176 off = (stub_entry->target_value
6177 + stub_entry->target_section->output_offset
6178 + stub_entry->target_section->output_section->vma);
6180 bfd_put_64 (htab->brlt->owner, off,
6181 htab->brlt->contents + br_entry->offset);
6185 /* Create a reloc for the branch lookup table entry. */
6186 Elf_Internal_Rela rela;
6189 rela.r_offset = (br_entry->offset
6190 + htab->brlt->output_offset
6191 + htab->brlt->output_section->vma);
6192 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
6193 rela.r_addend = off;
6195 rl = htab->relbrlt->contents;
6196 rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela);
6197 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
6200 off = (br_entry->offset
6201 + htab->brlt->output_offset
6202 + htab->brlt->output_section->vma
6203 - elf_gp (htab->brlt->output_section->owner)
6204 - htab->stub_group[stub_entry->id_sec->id].toc_off);
6206 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
6208 (*_bfd_error_handler)
6209 (_("linkage table error against `%s'"),
6210 stub_entry->root.string);
6211 bfd_set_error (bfd_error_bad_value);
6212 htab->stub_error = TRUE;
6217 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
6219 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
6221 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
6228 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
6229 - htab->stub_group[stub_entry->id_sec->id].toc_off);
6230 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
6232 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
6234 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
6236 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
6238 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
6242 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
6244 bfd_put_32 (htab->stub_bfd, BCTR, loc);
6247 case ppc_stub_plt_call:
6248 /* Do the best we can for shared libraries built without
6249 exporting ".foo" for each "foo". This can happen when symbol
6250 versioning scripts strip all bar a subset of symbols. */
6251 if (stub_entry->h->oh->root.type != bfd_link_hash_defined
6252 && stub_entry->h->oh->root.type != bfd_link_hash_defweak)
6254 /* Point the symbol at the stub. There may be multiple stubs,
6255 we don't really care; The main thing is to make this sym
6256 defined somewhere. Maybe defining the symbol in the stub
6257 section is a silly idea. If we didn't do this, htab->top_id
6259 stub_entry->h->oh->root.type = bfd_link_hash_defined;
6260 stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec;
6261 stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset;
6264 /* Now build the stub. */
6266 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6267 if (ent->addend == stub_entry->addend)
6269 off = ent->plt.offset;
6272 if (off >= (bfd_vma) -2)
6275 off &= ~ (bfd_vma) 1;
6276 off += (htab->plt->output_offset
6277 + htab->plt->output_section->vma
6278 - elf_gp (htab->plt->output_section->owner)
6279 - htab->stub_group[stub_entry->id_sec->id].toc_off);
6281 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
6283 (*_bfd_error_handler)
6284 (_("linkage table error against `%s'"),
6285 stub_entry->h->elf.root.root.string);
6286 bfd_set_error (bfd_error_bad_value);
6287 htab->stub_error = TRUE;
6291 p = build_plt_stub (htab->stub_bfd, loc, off);
6300 stub_entry->stub_sec->_cooked_size += size;
6302 if (htab->emit_stub_syms
6303 && !(stub_entry->stub_type == ppc_stub_plt_call
6304 && stub_entry->h->oh->root.type == bfd_link_hash_defined
6305 && stub_entry->h->oh->root.u.def.section == stub_entry->stub_sec
6306 && stub_entry->h->oh->root.u.def.value == stub_entry->stub_offset))
6308 struct elf_link_hash_entry *h;
6309 h = elf_link_hash_lookup (&htab->elf, stub_entry->root.string,
6310 TRUE, FALSE, FALSE);
6313 if (h->root.type == bfd_link_hash_new)
6315 h->root.type = bfd_link_hash_defined;
6316 h->root.u.def.section = stub_entry->stub_sec;
6317 h->root.u.def.value = stub_entry->stub_offset;
6318 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
6319 | ELF_LINK_HASH_DEF_REGULAR
6320 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
6321 | ELF_LINK_FORCED_LOCAL);
6328 /* As above, but don't actually build the stub. Just bump offset so
6329 we know stub section sizes, and select plt_branch stubs where
6330 long_branch stubs won't do. */
6333 ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
6335 struct ppc_stub_hash_entry *stub_entry;
6336 struct ppc_link_hash_table *htab;
6340 /* Massage our args to the form they really have. */
6341 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
6344 if (stub_entry->stub_type == ppc_stub_plt_call)
6346 struct plt_entry *ent;
6348 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6349 if (ent->addend == stub_entry->addend)
6351 off = ent->plt.offset & ~(bfd_vma) 1;
6354 if (off >= (bfd_vma) -2)
6356 off += (htab->plt->output_offset
6357 + htab->plt->output_section->vma
6358 - elf_gp (htab->plt->output_section->owner)
6359 - htab->stub_group[stub_entry->id_sec->id].toc_off);
6361 size = PLT_CALL_STUB_SIZE;
6362 if (PPC_HA (off + 16) != PPC_HA (off))
6367 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
6369 off = (stub_entry->target_value
6370 + stub_entry->target_section->output_offset
6371 + stub_entry->target_section->output_section->vma);
6372 off -= (stub_entry->stub_sec->_raw_size
6373 + stub_entry->stub_sec->output_offset
6374 + stub_entry->stub_sec->output_section->vma);
6376 /* Reset the stub type from the plt variant in case we now
6377 can reach with a shorter stub. */
6378 if (stub_entry->stub_type >= ppc_stub_plt_branch)
6379 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
6382 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
6388 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
6389 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
6391 struct ppc_branch_hash_entry *br_entry;
6393 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6394 stub_entry->root.string + 9,
6396 if (br_entry == NULL)
6398 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
6399 stub_entry->root.string + 9);
6400 htab->stub_error = TRUE;
6404 if (br_entry->iter != htab->stub_iteration)
6406 br_entry->iter = htab->stub_iteration;
6407 br_entry->offset = htab->brlt->_raw_size;
6408 htab->brlt->_raw_size += 8;
6411 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
6413 if (stub_entry->stub_type != ppc_stub_plt_branch)
6418 stub_entry->stub_sec->_raw_size += size;
6422 /* Set up various things so that we can make a list of input sections
6423 for each output section included in the link. Returns -1 on error,
6424 0 when no stubs will be needed, and 1 on success. */
6427 ppc64_elf_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
6430 int top_id, top_index, id;
6432 asection **input_list;
6434 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6436 if (htab->brlt == NULL)
6439 /* Find the top input section id. */
6440 for (input_bfd = info->input_bfds, top_id = 3;
6442 input_bfd = input_bfd->link_next)
6444 for (section = input_bfd->sections;
6446 section = section->next)
6448 if (top_id < section->id)
6449 top_id = section->id;
6453 htab->top_id = top_id;
6454 amt = sizeof (struct map_stub) * (top_id + 1);
6455 htab->stub_group = bfd_zmalloc (amt);
6456 if (htab->stub_group == NULL)
6459 /* Set toc_off for com, und, abs and ind sections. */
6460 for (id = 0; id < 3; id++)
6461 htab->stub_group[id].toc_off = TOC_BASE_OFF;
6463 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
6465 /* We can't use output_bfd->section_count here to find the top output
6466 section index as some sections may have been removed, and
6467 _bfd_strip_section_from_output doesn't renumber the indices. */
6468 for (section = output_bfd->sections, top_index = 0;
6470 section = section->next)
6472 if (top_index < section->index)
6473 top_index = section->index;
6476 htab->top_index = top_index;
6477 amt = sizeof (asection *) * (top_index + 1);
6478 input_list = bfd_zmalloc (amt);
6479 htab->input_list = input_list;
6480 if (input_list == NULL)
6486 /* The linker repeatedly calls this function for each TOC input section
6487 and linker generated GOT section. Group input bfds such that the toc
6488 within a group is less than 64k in size. Will break with cute linker
6489 scripts that play games with dot in the output toc section. */
6492 ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
6494 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6496 if (!htab->no_multi_toc)
6498 bfd_vma addr = isec->output_offset + isec->output_section->vma;
6499 bfd_vma off = addr - htab->toc_curr;
6500 if (off + isec->_raw_size > 0x10000)
6502 htab->toc_curr = addr;
6503 htab->multi_toc_needed = 1;
6505 elf_gp (isec->owner) = (htab->toc_curr
6506 - elf_gp (isec->output_section->owner)
6511 /* Called after the last call to the above function. */
6514 ppc64_elf_reinit_toc (bfd *output_bfd ATTRIBUTE_UNUSED,
6515 struct bfd_link_info *info)
6517 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6519 /* toc_curr tracks the TOC offset used for code sections below in
6520 ppc64_elf_next_input_section. Start off at 0x8000. */
6521 htab->toc_curr = TOC_BASE_OFF;
6524 /* No toc references were found in ISEC. If the code in ISEC makes no
6525 calls, then there's no need to use toc adjusting stubs when branching
6526 into ISEC. Actually, indirect calls from ISEC are OK as they will
6530 toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
6537 /* We know none of our code bearing sections will need toc stubs. */
6538 if ((isec->flags & SEC_LINKER_CREATED) != 0)
6541 /* Hack for linux kernel. .fixup contains branches, but only back to
6542 the function that hit an exception. */
6543 branch_ok = strcmp (isec->name, ".fixup") == 0;
6545 contents = elf_section_data (isec)->this_hdr.contents;
6546 if (contents == NULL)
6548 contents = bfd_malloc (isec->_raw_size);
6549 if (contents == NULL)
6551 if (! bfd_get_section_contents (isec->owner, isec, contents,
6552 0, isec->_raw_size))
6557 if (info->keep_memory)
6558 elf_section_data (isec)->this_hdr.contents = contents;
6561 /* Code scan, because we don't necessarily have relocs on calls to
6562 static functions. */
6564 for (i = 0; i < isec->_raw_size; i += 4)
6566 unsigned long insn = bfd_get_32 (isec->owner, contents + i);
6567 /* Is this a branch? */
6568 if ((insn & (0x3f << 26)) == (18 << 26)
6569 /* If branch and link, it's a function call. */
6571 /* Sibling calls use a plain branch. I don't know a way
6572 of deciding whether a branch is really a sibling call. */
6580 if (elf_section_data (isec)->this_hdr.contents != contents)
6585 /* The linker repeatedly calls this function for each input section,
6586 in the order that input sections are linked into output sections.
6587 Build lists of input sections to determine groupings between which
6588 we may insert linker stubs. */
6591 ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
6593 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6596 if ((isec->output_section->flags & SEC_CODE) != 0
6597 && isec->output_section->index <= htab->top_index)
6599 asection **list = htab->input_list + isec->output_section->index;
6600 /* Steal the link_sec pointer for our list. */
6601 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
6602 /* This happens to make the list in reverse order,
6603 which is what we want. */
6604 PREV_SEC (isec) = *list;
6608 /* If a code section has a function that uses the TOC then we need
6609 to use the right TOC (obviously). Also, make sure that .opd gets
6610 the correct TOC value for R_PPC64_TOC relocs that don't have or
6611 can't find their function symbol (shouldn't ever happen now). */
6612 if (isec->has_gp_reloc || (isec->flags & SEC_CODE) == 0)
6614 if (elf_gp (isec->owner) != 0)
6615 htab->toc_curr = elf_gp (isec->owner);
6617 else if ((ret = toc_adjusting_stub_needed (info, isec)) < 0)
6620 isec->has_gp_reloc = ret;
6622 /* Functions that don't use the TOC can belong in any TOC group.
6623 Use the last TOC base. This happens to make _init and _fini
6625 htab->stub_group[isec->id].toc_off = htab->toc_curr;
6629 /* See whether we can group stub sections together. Grouping stub
6630 sections may result in fewer stubs. More importantly, we need to
6631 put all .init* and .fini* stubs at the beginning of the .init or
6632 .fini output sections respectively, because glibc splits the
6633 _init and _fini functions into multiple parts. Putting a stub in
6634 the middle of a function is not a good idea. */
6637 group_sections (struct ppc_link_hash_table *htab,
6638 bfd_size_type stub_group_size,
6639 bfd_boolean stubs_always_before_branch)
6641 asection **list = htab->input_list + htab->top_index;
6644 asection *tail = *list;
6645 while (tail != NULL)
6649 bfd_size_type total;
6650 bfd_boolean big_sec;
6654 if (tail->_cooked_size)
6655 total = tail->_cooked_size;
6657 total = tail->_raw_size;
6658 big_sec = total >= stub_group_size;
6659 curr_toc = htab->stub_group[tail->id].toc_off;
6661 while ((prev = PREV_SEC (curr)) != NULL
6662 && ((total += curr->output_offset - prev->output_offset)
6664 && htab->stub_group[prev->id].toc_off == curr_toc)
6667 /* OK, the size from the start of CURR to the end is less
6668 than stub_group_size and thus can be handled by one stub
6669 section. (or the tail section is itself larger than
6670 stub_group_size, in which case we may be toast.) We
6671 should really be keeping track of the total size of stubs
6672 added here, as stubs contribute to the final output
6673 section size. That's a little tricky, and this way will
6674 only break if stubs added make the total size more than
6675 2^25, ie. for the default stub_group_size, if stubs total
6676 more than 2097152 bytes, or nearly 75000 plt call stubs. */
6679 prev = PREV_SEC (tail);
6680 /* Set up this stub group. */
6681 htab->stub_group[tail->id].link_sec = curr;
6683 while (tail != curr && (tail = prev) != NULL);
6685 /* But wait, there's more! Input sections up to stub_group_size
6686 bytes before the stub section can be handled by it too.
6687 Don't do this if we have a really large section after the
6688 stubs, as adding more stubs increases the chance that
6689 branches may not reach into the stub section. */
6690 if (!stubs_always_before_branch && !big_sec)
6694 && ((total += tail->output_offset - prev->output_offset)
6696 && htab->stub_group[prev->id].toc_off == curr_toc)
6699 prev = PREV_SEC (tail);
6700 htab->stub_group[tail->id].link_sec = curr;
6706 while (list-- != htab->input_list);
6707 free (htab->input_list);
6711 /* Determine and set the size of the stub section for a final link.
6713 The basic idea here is to examine all the relocations looking for
6714 PC-relative calls to a target that is unreachable with a "bl"
6718 ppc64_elf_size_stubs (bfd *output_bfd,
6719 struct bfd_link_info *info,
6720 bfd_signed_vma group_size,
6721 asection *(*add_stub_section) (const char *, asection *),
6722 void (*layout_sections_again) (void))
6724 bfd_size_type stub_group_size;
6725 bfd_boolean stubs_always_before_branch;
6726 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6728 /* Stash our params away. */
6729 htab->add_stub_section = add_stub_section;
6730 htab->layout_sections_again = layout_sections_again;
6731 stubs_always_before_branch = group_size < 0;
6733 stub_group_size = -group_size;
6735 stub_group_size = group_size;
6736 if (stub_group_size == 1)
6738 /* Default values. */
6739 if (stubs_always_before_branch)
6741 stub_group_size = 0x1e00000;
6742 if (htab->has_14bit_branch)
6743 stub_group_size = 0x7800;
6747 stub_group_size = 0x1c00000;
6748 if (htab->has_14bit_branch)
6749 stub_group_size = 0x7000;
6753 group_sections (htab, stub_group_size, stubs_always_before_branch);
6758 unsigned int bfd_indx;
6760 bfd_boolean stub_changed;
6762 htab->stub_iteration += 1;
6763 stub_changed = FALSE;
6765 for (input_bfd = info->input_bfds, bfd_indx = 0;
6767 input_bfd = input_bfd->link_next, bfd_indx++)
6769 Elf_Internal_Shdr *symtab_hdr;
6771 Elf_Internal_Sym *local_syms = NULL;
6773 /* We'll need the symbol table in a second. */
6774 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6775 if (symtab_hdr->sh_info == 0)
6778 /* Walk over each section attached to the input bfd. */
6779 for (section = input_bfd->sections;
6781 section = section->next)
6783 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
6785 /* If there aren't any relocs, then there's nothing more
6787 if ((section->flags & SEC_RELOC) == 0
6788 || section->reloc_count == 0)
6791 /* If this section is a link-once section that will be
6792 discarded, then don't create any stubs. */
6793 if (section->output_section == NULL
6794 || section->output_section->owner != output_bfd)
6797 /* Get the relocs. */
6799 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
6801 if (internal_relocs == NULL)
6802 goto error_ret_free_local;
6804 /* Now examine each relocation. */
6805 irela = internal_relocs;
6806 irelaend = irela + section->reloc_count;
6807 for (; irela < irelaend; irela++)
6809 enum elf_ppc64_reloc_type r_type;
6810 unsigned int r_indx;
6811 enum ppc_stub_type stub_type;
6812 struct ppc_stub_hash_entry *stub_entry;
6815 bfd_vma destination;
6816 struct ppc_link_hash_entry *hash;
6817 struct elf_link_hash_entry *h;
6818 Elf_Internal_Sym *sym;
6820 const asection *id_sec;
6822 r_type = ELF64_R_TYPE (irela->r_info);
6823 r_indx = ELF64_R_SYM (irela->r_info);
6825 if (r_type >= R_PPC64_max)
6827 bfd_set_error (bfd_error_bad_value);
6828 goto error_ret_free_internal;
6831 /* Only look for stubs on branch instructions. */
6832 if (r_type != R_PPC64_REL24
6833 && r_type != R_PPC64_REL14
6834 && r_type != R_PPC64_REL14_BRTAKEN
6835 && r_type != R_PPC64_REL14_BRNTAKEN)
6838 /* Now determine the call target, its name, value,
6841 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6843 goto error_ret_free_internal;
6844 hash = (struct ppc_link_hash_entry *) h;
6848 /* It's a local symbol. */
6849 sym_value = sym->st_value;
6850 destination = (sym_value + irela->r_addend
6851 + sym_sec->output_offset
6852 + sym_sec->output_section->vma);
6856 /* It's an external symbol. */
6858 if (hash->elf.root.type == bfd_link_hash_defined
6859 || hash->elf.root.type == bfd_link_hash_defweak)
6861 sym_value = hash->elf.root.u.def.value;
6862 if (sym_sec->output_section != NULL)
6863 destination = (sym_value + irela->r_addend
6864 + sym_sec->output_offset
6865 + sym_sec->output_section->vma);
6867 else if (hash->elf.root.type == bfd_link_hash_undefweak)
6869 else if (hash->elf.root.type == bfd_link_hash_undefined)
6873 bfd_set_error (bfd_error_bad_value);
6874 goto error_ret_free_internal;
6878 /* Determine what (if any) linker stub is needed. */
6879 stub_type = ppc_type_of_stub (section, irela, &hash,
6882 if (stub_type != ppc_stub_plt_call)
6884 /* Check whether we need a TOC adjusting stub.
6885 Since the linker pastes together pieces from
6886 different object files when creating the
6887 _init and _fini functions, it may be that a
6888 call to what looks like a local sym is in
6889 fact a call needing a TOC adjustment. */
6891 && sym_sec->output_section != NULL
6892 && (htab->stub_group[sym_sec->id].toc_off
6893 != htab->stub_group[section->id].toc_off)
6894 && sym_sec->has_gp_reloc
6895 && section->has_gp_reloc)
6896 stub_type = ppc_stub_long_branch_r2off;
6899 if (stub_type == ppc_stub_none)
6902 /* __tls_get_addr calls might be eliminated. */
6903 if (stub_type != ppc_stub_plt_call
6905 && &hash->elf == htab->tls_get_addr
6906 && section->has_tls_reloc
6907 && irela != internal_relocs)
6912 if (!get_tls_mask (&tls_mask, &local_syms,
6913 irela - 1, input_bfd))
6914 goto error_ret_free_internal;
6919 /* Support for grouping stub sections. */
6920 id_sec = htab->stub_group[section->id].link_sec;
6922 /* Get the name of this stub. */
6923 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
6925 goto error_ret_free_internal;
6927 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
6928 stub_name, FALSE, FALSE);
6929 if (stub_entry != NULL)
6931 /* The proper stub has already been created. */
6936 stub_entry = ppc_add_stub (stub_name, section, htab);
6937 if (stub_entry == NULL)
6940 error_ret_free_internal:
6941 if (elf_section_data (section)->relocs == NULL)
6942 free (internal_relocs);
6943 error_ret_free_local:
6944 if (local_syms != NULL
6945 && (symtab_hdr->contents
6946 != (unsigned char *) local_syms))
6951 stub_entry->stub_type = stub_type;
6952 stub_entry->target_value = sym_value;
6953 stub_entry->target_section = sym_sec;
6954 stub_entry->h = hash;
6955 stub_entry->addend = irela->r_addend;
6956 stub_changed = TRUE;
6959 /* We're done with the internal relocs, free them. */
6960 if (elf_section_data (section)->relocs != internal_relocs)
6961 free (internal_relocs);
6964 if (local_syms != NULL
6965 && symtab_hdr->contents != (unsigned char *) local_syms)
6967 if (!info->keep_memory)
6970 symtab_hdr->contents = (unsigned char *) local_syms;
6977 /* OK, we've added some stubs. Find out the new size of the
6979 for (stub_sec = htab->stub_bfd->sections;
6981 stub_sec = stub_sec->next)
6982 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
6984 stub_sec->_raw_size = 0;
6985 stub_sec->_cooked_size = 0;
6987 htab->brlt->_raw_size = 0;
6988 htab->brlt->_cooked_size = 0;
6990 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, htab);
6992 /* Ask the linker to do its stuff. */
6993 (*htab->layout_sections_again) ();
6996 /* It would be nice to strip .branch_lt from the output if the
6997 section is empty, but it's too late. If we strip sections here,
6998 the dynamic symbol table is corrupted since the section symbol
6999 for the stripped section isn't written. */
7004 /* Called after we have determined section placement. If sections
7005 move, we'll be called again. Provide a value for TOCstart. */
7008 ppc64_elf_toc (bfd *obfd)
7013 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
7014 order. The TOC starts where the first of these sections starts. */
7015 s = bfd_get_section_by_name (obfd, ".got");
7017 s = bfd_get_section_by_name (obfd, ".toc");
7019 s = bfd_get_section_by_name (obfd, ".tocbss");
7021 s = bfd_get_section_by_name (obfd, ".plt");
7024 /* This may happen for
7025 o references to TOC base (SYM@toc / TOC[tc0]) without a
7028 o --gc-sections and empty TOC sections
7030 FIXME: Warn user? */
7032 /* Look for a likely section. We probably won't even be
7034 for (s = obfd->sections; s != NULL; s = s->next)
7035 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
7036 == (SEC_ALLOC | SEC_SMALL_DATA))
7039 for (s = obfd->sections; s != NULL; s = s->next)
7040 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
7041 == (SEC_ALLOC | SEC_SMALL_DATA))
7044 for (s = obfd->sections; s != NULL; s = s->next)
7045 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
7048 for (s = obfd->sections; s != NULL; s = s->next)
7049 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
7055 TOCstart = s->output_section->vma + s->output_offset;
7060 /* Build all the stubs associated with the current output file.
7061 The stubs are kept in a hash table attached to the main linker
7062 hash table. This function is called via gldelf64ppc_finish. */
7065 ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
7066 struct bfd_link_info *info,
7069 struct ppc_link_hash_table *htab = ppc_hash_table (info);
7072 int stub_sec_count = 0;
7074 htab->emit_stub_syms = emit_stub_syms;
7075 for (stub_sec = htab->stub_bfd->sections;
7077 stub_sec = stub_sec->next)
7078 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
7082 /* Allocate memory to hold the linker stubs. */
7083 size = stub_sec->_raw_size;
7086 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
7087 if (stub_sec->contents == NULL)
7090 stub_sec->_cooked_size = 0;
7093 if (htab->plt != NULL)
7098 /* Build the .glink plt call stub. */
7099 plt0 = (htab->plt->output_section->vma
7100 + htab->plt->output_offset
7101 - (htab->glink->output_section->vma
7102 + htab->glink->output_offset
7103 + GLINK_CALL_STUB_SIZE));
7104 if (plt0 + 0x80008000 > 0xffffffff)
7106 (*_bfd_error_handler) (_(".glink and .plt too far apart"));
7107 bfd_set_error (bfd_error_bad_value);
7111 if (htab->emit_stub_syms)
7113 struct elf_link_hash_entry *h;
7114 h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE);
7117 if (h->root.type == bfd_link_hash_new)
7119 h->root.type = bfd_link_hash_defined;
7120 h->root.u.def.section = htab->glink;
7121 h->root.u.def.value = 0;
7122 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
7123 | ELF_LINK_HASH_DEF_REGULAR
7124 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
7125 | ELF_LINK_FORCED_LOCAL);
7128 p = htab->glink->contents;
7129 bfd_put_32 (htab->glink->owner, MFCTR_R12, p);
7131 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p);
7133 bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p);
7135 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
7137 bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p);
7139 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p);
7141 bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p);
7143 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
7145 bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p);
7147 bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p);
7149 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p);
7151 bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p);
7153 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
7155 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
7157 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
7159 bfd_put_32 (htab->glink->owner, BCTR, p);
7162 /* Build the .glink lazy link call stubs. */
7164 while (p < htab->glink->contents + htab->glink->_raw_size)
7168 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
7173 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
7175 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
7178 bfd_put_32 (htab->glink->owner,
7179 B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p);
7183 htab->glink->_cooked_size = p - htab->glink->contents;
7186 if (htab->brlt->_raw_size != 0)
7188 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
7189 htab->brlt->_raw_size);
7190 if (htab->brlt->contents == NULL)
7194 /* Build the stubs as directed by the stub hash table. */
7195 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
7197 for (stub_sec = htab->stub_bfd->sections;
7199 stub_sec = stub_sec->next)
7200 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
7202 stub_sec_count += 1;
7203 if (stub_sec->_raw_size != stub_sec->_cooked_size)
7207 if (stub_sec != NULL
7208 || htab->glink->_raw_size != htab->glink->_cooked_size)
7210 htab->stub_error = TRUE;
7211 (*_bfd_error_handler) (_("stubs don't match calculated size"));
7214 if (htab->stub_error)
7219 *stats = bfd_malloc (500);
7223 sprintf (*stats, _("linker stubs in %u groups\n"
7226 " long branch %lu\n"
7227 " long toc adj %lu\n"
7230 htab->stub_count[ppc_stub_long_branch - 1],
7231 htab->stub_count[ppc_stub_long_branch_r2off - 1],
7232 htab->stub_count[ppc_stub_plt_branch - 1],
7233 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
7234 htab->stub_count[ppc_stub_plt_call - 1]);
7239 /* The RELOCATE_SECTION function is called by the ELF backend linker
7240 to handle the relocations for a section.
7242 The relocs are always passed as Rela structures; if the section
7243 actually uses Rel structures, the r_addend field will always be
7246 This function is responsible for adjust the section contents as
7247 necessary, and (if using Rela relocs and generating a
7248 relocatable output file) adjusting the reloc addend as
7251 This function does not have to worry about setting the reloc
7252 address or the reloc symbol index.
7254 LOCAL_SYMS is a pointer to the swapped in local symbols.
7256 LOCAL_SECTIONS is an array giving the section in the input file
7257 corresponding to the st_shndx field of each local symbol.
7259 The global hash table entry for the global symbols can be found
7260 via elf_sym_hashes (input_bfd).
7262 When generating relocatable output, this function must handle
7263 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7264 going to be the section symbol corresponding to the output
7265 section, which means that the addend must be adjusted
7269 ppc64_elf_relocate_section (bfd *output_bfd,
7270 struct bfd_link_info *info,
7272 asection *input_section,
7274 Elf_Internal_Rela *relocs,
7275 Elf_Internal_Sym *local_syms,
7276 asection **local_sections)
7278 struct ppc_link_hash_table *htab;
7279 Elf_Internal_Shdr *symtab_hdr;
7280 struct elf_link_hash_entry **sym_hashes;
7281 Elf_Internal_Rela *rel;
7282 Elf_Internal_Rela *relend;
7283 Elf_Internal_Rela outrel;
7285 struct got_entry **local_got_ents;
7287 bfd_boolean ret = TRUE;
7289 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
7290 bfd_boolean is_power4 = FALSE;
7292 if (info->relocatable)
7295 /* Initialize howto table if needed. */
7296 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
7299 htab = ppc_hash_table (info);
7300 local_got_ents = elf_local_got_ents (input_bfd);
7301 TOCstart = elf_gp (output_bfd);
7302 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
7303 sym_hashes = elf_sym_hashes (input_bfd);
7304 is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL;
7307 relend = relocs + input_section->reloc_count;
7308 for (; rel < relend; rel++)
7310 enum elf_ppc64_reloc_type r_type;
7312 bfd_reloc_status_type r;
7313 Elf_Internal_Sym *sym;
7315 struct elf_link_hash_entry *h;
7316 struct elf_link_hash_entry *fdh;
7317 const char *sym_name;
7318 unsigned long r_symndx;
7319 char tls_mask, tls_gd, tls_type;
7321 bfd_boolean unresolved_reloc;
7323 unsigned long insn, mask;
7324 struct ppc_stub_hash_entry *stub_entry;
7325 bfd_vma max_br_offset;
7328 r_type = ELF64_R_TYPE (rel->r_info);
7329 r_symndx = ELF64_R_SYM (rel->r_info);
7331 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
7332 symbol of the previous ADDR64 reloc. The symbol gives us the
7333 proper TOC base to use. */
7334 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
7336 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
7338 r_symndx = ELF64_R_SYM (rel[-1].r_info);
7344 unresolved_reloc = FALSE;
7347 if (r_symndx < symtab_hdr->sh_info)
7349 /* It's a local symbol. */
7350 sym = local_syms + r_symndx;
7351 sec = local_sections[r_symndx];
7352 sym_name = bfd_elf_local_sym_name (input_bfd, sym);
7353 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
7354 if (elf_section_data (sec) != NULL)
7356 long *opd_sym_adjust;
7358 opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust;
7359 if (opd_sym_adjust != NULL && sym->st_value % 24 == 0)
7360 relocation += opd_sym_adjust[sym->st_value / 24];
7365 /* It's a global symbol. */
7366 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
7367 while (h->root.type == bfd_link_hash_indirect
7368 || h->root.type == bfd_link_hash_warning)
7369 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7370 sym_name = h->root.root.string;
7372 if (h->root.type == bfd_link_hash_defined
7373 || h->root.type == bfd_link_hash_defweak)
7375 sec = h->root.u.def.section;
7376 if (sec->output_section == NULL)
7377 /* Set a flag that will be cleared later if we find a
7378 relocation value for this symbol. output_section
7379 is typically NULL for symbols satisfied by a shared
7381 unresolved_reloc = TRUE;
7383 relocation = (h->root.u.def.value
7384 + sec->output_section->vma
7385 + sec->output_offset);
7387 else if (h->root.type == bfd_link_hash_undefweak)
7389 else if (!info->executable
7390 && !info->no_undefined
7391 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
7395 if (! ((*info->callbacks->undefined_symbol)
7396 (info, h->root.root.string, input_bfd, input_section,
7397 rel->r_offset, (info->executable
7398 || info->no_undefined
7399 || ELF_ST_VISIBILITY (h->other)))))
7405 /* TLS optimizations. Replace instruction sequences and relocs
7406 based on information we collected in tls_optimize. We edit
7407 RELOCS so that --emit-relocs will output something sensible
7408 for the final instruction stream. */
7411 if (IS_PPC64_TLS_RELOC (r_type))
7414 tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask;
7415 else if (local_got_ents != NULL)
7418 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
7419 tls_mask = lgot_masks[r_symndx];
7423 /* Ensure reloc mapping code below stays sane. */
7424 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
7425 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
7426 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
7427 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
7428 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
7429 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
7430 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
7431 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
7432 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
7433 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
7441 case R_PPC64_TOC16_LO:
7442 case R_PPC64_TOC16_DS:
7443 case R_PPC64_TOC16_LO_DS:
7445 /* Check for toc tls entries. */
7449 retval = get_tls_mask (&toc_tls, &local_syms, rel, input_bfd);
7455 tls_mask = *toc_tls;
7456 if (r_type == R_PPC64_TOC16_DS
7457 || r_type == R_PPC64_TOC16_LO_DS)
7460 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
7465 /* If we found a GD reloc pair, then we might be
7466 doing a GD->IE transition. */
7469 tls_gd = TLS_TPRELGD;
7470 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7471 goto tls_get_addr_check;
7473 else if (retval == 3)
7475 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7476 goto tls_get_addr_check;
7483 case R_PPC64_GOT_TPREL16_DS:
7484 case R_PPC64_GOT_TPREL16_LO_DS:
7486 && (tls_mask & TLS_TPREL) == 0)
7489 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
7491 insn |= 0x3c0d0000; /* addis 0,13,0 */
7492 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
7493 r_type = R_PPC64_TPREL16_HA;
7494 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7501 /* Check for toc tls entries. */
7504 if (!get_tls_mask (&toc_tls, &local_syms, rel, input_bfd))
7508 tls_mask = *toc_tls;
7511 && (tls_mask & TLS_TPREL) == 0)
7514 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7515 if ((insn & ((0x3f << 26) | (31 << 11)))
7516 == ((31 << 26) | (13 << 11)))
7517 rtra = insn & ((1 << 26) - (1 << 16));
7518 else if ((insn & ((0x3f << 26) | (31 << 16)))
7519 == ((31 << 26) | (13 << 16)))
7520 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
7523 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
7526 else if ((insn & (31 << 1)) == 23 << 1
7527 && ((insn & (31 << 6)) < 14 << 6
7528 || ((insn & (31 << 6)) >= 16 << 6
7529 && (insn & (31 << 6)) < 24 << 6)))
7530 /* load and store indexed -> dform. */
7531 insn = (32 | ((insn >> 6) & 31)) << 26;
7532 else if ((insn & (31 << 1)) == 21 << 1
7533 && (insn & (0x1a << 6)) == 0)
7534 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7535 insn = (((58 | ((insn >> 6) & 4)) << 26)
7536 | ((insn >> 6) & 1));
7537 else if ((insn & (31 << 1)) == 21 << 1
7538 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
7540 insn = (58 << 26) | 2;
7544 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7545 r_type = R_PPC64_TPREL16_LO;
7546 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7547 /* Was PPC64_TLS which sits on insn boundary, now
7548 PPC64_TPREL16_LO which is at insn+2. */
7553 case R_PPC64_GOT_TLSGD16_HI:
7554 case R_PPC64_GOT_TLSGD16_HA:
7555 tls_gd = TLS_TPRELGD;
7556 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7560 case R_PPC64_GOT_TLSLD16_HI:
7561 case R_PPC64_GOT_TLSLD16_HA:
7562 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7565 if ((tls_mask & tls_gd) != 0)
7566 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7567 + R_PPC64_GOT_TPREL16_DS);
7570 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7572 r_type = R_PPC64_NONE;
7574 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7578 case R_PPC64_GOT_TLSGD16:
7579 case R_PPC64_GOT_TLSGD16_LO:
7580 tls_gd = TLS_TPRELGD;
7581 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7582 goto tls_get_addr_check;
7585 case R_PPC64_GOT_TLSLD16:
7586 case R_PPC64_GOT_TLSLD16_LO:
7587 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7590 if (rel + 1 < relend)
7592 enum elf_ppc64_reloc_type r_type2;
7593 unsigned long r_symndx2;
7594 struct elf_link_hash_entry *h2;
7595 bfd_vma insn1, insn2, insn3;
7598 /* The next instruction should be a call to
7599 __tls_get_addr. Peek at the reloc to be sure. */
7600 r_type2 = ELF64_R_TYPE (rel[1].r_info);
7601 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
7602 if (r_symndx2 < symtab_hdr->sh_info
7603 || (r_type2 != R_PPC64_REL14
7604 && r_type2 != R_PPC64_REL14_BRTAKEN
7605 && r_type2 != R_PPC64_REL14_BRNTAKEN
7606 && r_type2 != R_PPC64_REL24))
7609 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
7610 while (h2->root.type == bfd_link_hash_indirect
7611 || h2->root.type == bfd_link_hash_warning)
7612 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
7613 if (h2 == NULL || h2 != htab->tls_get_addr)
7616 /* OK, it checks out. Replace the call. */
7617 offset = rel[1].r_offset;
7618 insn1 = bfd_get_32 (output_bfd,
7619 contents + rel->r_offset - 2);
7620 insn3 = bfd_get_32 (output_bfd,
7621 contents + offset + 4);
7622 if ((tls_mask & tls_gd) != 0)
7625 insn1 &= (1 << 26) - (1 << 2);
7626 insn1 |= 58 << 26; /* ld */
7627 insn2 = 0x7c636a14; /* add 3,3,13 */
7628 rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE);
7629 if ((tls_mask & TLS_EXPLICIT) == 0)
7630 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7631 + R_PPC64_GOT_TPREL16_DS);
7633 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
7634 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7639 insn1 = 0x3c6d0000; /* addis 3,13,0 */
7640 insn2 = 0x38630000; /* addi 3,3,0 */
7643 /* Was an LD reloc. */
7645 rel->r_addend = htab->tls_sec->vma + DTP_OFFSET;
7646 rel[1].r_addend = htab->tls_sec->vma + DTP_OFFSET;
7648 r_type = R_PPC64_TPREL16_HA;
7649 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7650 rel[1].r_info = ELF64_R_INFO (r_symndx,
7651 R_PPC64_TPREL16_LO);
7652 rel[1].r_offset += 2;
7655 || insn3 == CROR_151515 || insn3 == CROR_313131)
7659 rel[1].r_offset += 4;
7661 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
7662 bfd_put_32 (output_bfd, insn2, contents + offset);
7663 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
7666 /* We changed the symbol on an LD reloc. Start over
7667 in order to get h, sym, sec etc. right. */
7675 case R_PPC64_DTPMOD64:
7676 if (rel + 1 < relend
7677 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
7678 && rel[1].r_offset == rel->r_offset + 8)
7680 if ((tls_mask & TLS_GD) == 0)
7682 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
7683 if ((tls_mask & TLS_TPRELGD) != 0)
7684 r_type = R_PPC64_TPREL64;
7687 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
7688 r_type = R_PPC64_NONE;
7690 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7695 if ((tls_mask & TLS_LD) == 0)
7697 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
7698 r_type = R_PPC64_NONE;
7699 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7704 case R_PPC64_TPREL64:
7705 if ((tls_mask & TLS_TPREL) == 0)
7707 r_type = R_PPC64_NONE;
7708 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7713 /* Handle other relocations that tweak non-addend part of insn. */
7720 /* Branch taken prediction relocations. */
7721 case R_PPC64_ADDR14_BRTAKEN:
7722 case R_PPC64_REL14_BRTAKEN:
7723 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7726 /* Branch not taken prediction relocations. */
7727 case R_PPC64_ADDR14_BRNTAKEN:
7728 case R_PPC64_REL14_BRNTAKEN:
7729 insn |= bfd_get_32 (output_bfd,
7730 contents + rel->r_offset) & ~(0x01 << 21);
7733 /* Set 'a' bit. This is 0b00010 in BO field for branch
7734 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7735 for branch on CTR insns (BO == 1a00t or 1a01t). */
7736 if ((insn & (0x14 << 21)) == (0x04 << 21))
7738 else if ((insn & (0x14 << 21)) == (0x10 << 21))
7745 from = (rel->r_offset
7746 + input_section->output_offset
7747 + input_section->output_section->vma);
7749 /* Invert 'y' bit if not the default. */
7750 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
7754 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7758 /* Calls to functions with a different TOC, such as calls to
7759 shared objects, need to alter the TOC pointer. This is
7760 done using a linkage stub. A REL24 branching to these
7761 linkage stubs needs to be followed by a nop, as the nop
7762 will be replaced with an instruction to restore the TOC
7765 && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL
7766 && fdh->plt.plist != NULL)
7767 || ((fdh = h, sec) != NULL
7768 && sec->output_section != NULL
7769 && (htab->stub_group[sec->id].toc_off
7770 != htab->stub_group[input_section->id].toc_off)))
7771 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
7773 && (stub_entry->stub_type == ppc_stub_plt_call
7774 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
7775 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
7777 bfd_boolean can_plt_call = 0;
7779 if (rel->r_offset + 8 <= input_section->_cooked_size)
7781 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
7783 || insn == CROR_151515 || insn == CROR_313131)
7785 bfd_put_32 (input_bfd, LD_R2_40R1,
7786 contents + rel->r_offset + 4);
7793 if (stub_entry->stub_type == ppc_stub_plt_call)
7795 /* If this is a plain branch rather than a branch
7796 and link, don't require a nop. */
7797 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
7798 if ((insn & 1) == 0)
7802 && strcmp (h->root.root.string,
7803 ".__libc_start_main") == 0)
7805 /* Allow crt1 branch to go via a toc adjusting stub. */
7810 if (strcmp (input_section->output_section->name,
7812 || strcmp (input_section->output_section->name,
7814 (*_bfd_error_handler)
7815 (_("%s(%s+0x%lx): automatic multiple TOCs "
7816 "not supported using your crt files; "
7817 "recompile with -mminimal-toc or upgrade gcc"),
7818 bfd_archive_filename (input_bfd),
7819 input_section->name,
7820 (long) rel->r_offset);
7822 (*_bfd_error_handler)
7823 (_("%s(%s+0x%lx): sibling call optimization to `%s' "
7824 "does not allow automatic multiple TOCs; "
7825 "recompile with -mminimal-toc or "
7826 "-fno-optimize-sibling-calls, "
7827 "or make `%s' extern"),
7828 bfd_archive_filename (input_bfd),
7829 input_section->name,
7830 (long) rel->r_offset,
7833 bfd_set_error (bfd_error_bad_value);
7840 relocation = (stub_entry->stub_offset
7841 + stub_entry->stub_sec->output_offset
7842 + stub_entry->stub_sec->output_section->vma);
7843 if (stub_entry->stub_type == ppc_stub_plt_call)
7844 unresolved_reloc = FALSE;
7849 && h->root.type == bfd_link_hash_undefweak
7851 && rel->r_addend == 0)
7853 /* Tweak calls to undefined weak functions to point at a
7854 blr. We can thus call a weak function without first
7855 checking whether the function is defined. We have a
7856 blr at the end of .sfpr. */
7857 BFD_ASSERT (htab->sfpr->_raw_size != 0);
7858 relocation = (htab->sfpr->_raw_size - 4
7859 + htab->sfpr->output_offset
7860 + htab->sfpr->output_section->vma);
7861 from = (rel->r_offset
7862 + input_section->output_offset
7863 + input_section->output_section->vma);
7865 /* But let's not be silly about it. If the blr isn't in
7866 reach, just go to the next instruction. */
7867 if (relocation - from + (1 << 25) >= (1 << 26)
7868 || htab->sfpr->_raw_size == 0)
7869 relocation = from + 4;
7876 addend = rel->r_addend;
7880 (*_bfd_error_handler)
7881 (_("%s: unknown relocation type %d for symbol %s"),
7882 bfd_archive_filename (input_bfd), (int) r_type, sym_name);
7884 bfd_set_error (bfd_error_bad_value);
7890 case R_PPC64_GNU_VTINHERIT:
7891 case R_PPC64_GNU_VTENTRY:
7894 /* GOT16 relocations. Like an ADDR16 using the symbol's
7895 address in the GOT as relocation value instead of the
7896 symbol's value itself. Also, create a GOT entry for the
7897 symbol and put the symbol value there. */
7898 case R_PPC64_GOT_TLSGD16:
7899 case R_PPC64_GOT_TLSGD16_LO:
7900 case R_PPC64_GOT_TLSGD16_HI:
7901 case R_PPC64_GOT_TLSGD16_HA:
7902 tls_type = TLS_TLS | TLS_GD;
7905 case R_PPC64_GOT_TLSLD16:
7906 case R_PPC64_GOT_TLSLD16_LO:
7907 case R_PPC64_GOT_TLSLD16_HI:
7908 case R_PPC64_GOT_TLSLD16_HA:
7909 tls_type = TLS_TLS | TLS_LD;
7912 case R_PPC64_GOT_TPREL16_DS:
7913 case R_PPC64_GOT_TPREL16_LO_DS:
7914 case R_PPC64_GOT_TPREL16_HI:
7915 case R_PPC64_GOT_TPREL16_HA:
7916 tls_type = TLS_TLS | TLS_TPREL;
7919 case R_PPC64_GOT_DTPREL16_DS:
7920 case R_PPC64_GOT_DTPREL16_LO_DS:
7921 case R_PPC64_GOT_DTPREL16_HI:
7922 case R_PPC64_GOT_DTPREL16_HA:
7923 tls_type = TLS_TLS | TLS_DTPREL;
7927 case R_PPC64_GOT16_LO:
7928 case R_PPC64_GOT16_HI:
7929 case R_PPC64_GOT16_HA:
7930 case R_PPC64_GOT16_DS:
7931 case R_PPC64_GOT16_LO_DS:
7934 /* Relocation is to the entry for this symbol in the global
7939 unsigned long indx = 0;
7941 if (tls_type == (TLS_TLS | TLS_LD)
7943 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
7944 offp = &ppc64_tlsld_got (input_bfd)->offset;
7947 struct got_entry *ent;
7951 bfd_boolean dyn = htab->elf.dynamic_sections_created;
7952 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7954 && SYMBOL_REFERENCES_LOCAL (info, h)))
7955 /* This is actually a static link, or it is a
7956 -Bsymbolic link and the symbol is defined
7957 locally, or the symbol was forced to be local
7958 because of a version file. */
7963 unresolved_reloc = FALSE;
7969 if (local_got_ents == NULL)
7971 ent = local_got_ents[r_symndx];
7974 for (; ent != NULL; ent = ent->next)
7975 if (ent->addend == rel->r_addend
7976 && ent->owner == input_bfd
7977 && ent->tls_type == tls_type)
7981 offp = &ent->got.offset;
7984 got = ppc64_elf_tdata (input_bfd)->got;
7988 /* The offset must always be a multiple of 8. We use the
7989 least significant bit to record whether we have already
7990 processed this entry. */
7996 /* Generate relocs for the dynamic linker, except in
7997 the case of TLSLD where we'll use one entry per
7999 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
8002 if ((info->shared || indx != 0)
8004 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8005 || h->root.type != bfd_link_hash_undefweak))
8007 outrel.r_offset = (got->output_section->vma
8008 + got->output_offset
8010 outrel.r_addend = rel->r_addend;
8011 if (tls_type & (TLS_LD | TLS_GD))
8013 outrel.r_addend = 0;
8014 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
8015 if (tls_type == (TLS_TLS | TLS_GD))
8017 loc = relgot->contents;
8018 loc += (relgot->reloc_count++
8019 * sizeof (Elf64_External_Rela));
8020 bfd_elf64_swap_reloca_out (output_bfd,
8022 outrel.r_offset += 8;
8023 outrel.r_addend = rel->r_addend;
8025 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
8028 else if (tls_type == (TLS_TLS | TLS_DTPREL))
8029 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
8030 else if (tls_type == (TLS_TLS | TLS_TPREL))
8031 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
8034 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
8036 /* Write the .got section contents for the sake
8038 loc = got->contents + off;
8039 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
8043 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
8045 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
8047 outrel.r_addend += relocation;
8048 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
8049 outrel.r_addend -= htab->tls_sec->vma;
8051 loc = relgot->contents;
8052 loc += (relgot->reloc_count++
8053 * sizeof (Elf64_External_Rela));
8054 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
8057 /* Init the .got section contents here if we're not
8058 emitting a reloc. */
8061 relocation += rel->r_addend;
8062 if (tls_type == (TLS_TLS | TLS_LD))
8064 else if (tls_type != 0)
8066 relocation -= htab->tls_sec->vma + DTP_OFFSET;
8067 if (tls_type == (TLS_TLS | TLS_TPREL))
8068 relocation += DTP_OFFSET - TP_OFFSET;
8070 if (tls_type == (TLS_TLS | TLS_GD))
8072 bfd_put_64 (output_bfd, relocation,
8073 got->contents + off + 8);
8078 bfd_put_64 (output_bfd, relocation,
8079 got->contents + off);
8083 if (off >= (bfd_vma) -2)
8086 relocation = got->output_offset + off;
8088 /* TOC base (r2) is TOC start plus 0x8000. */
8089 addend = -TOC_BASE_OFF;
8093 case R_PPC64_PLT16_HA:
8094 case R_PPC64_PLT16_HI:
8095 case R_PPC64_PLT16_LO:
8098 /* Relocation is to the entry for this symbol in the
8099 procedure linkage table. */
8101 /* Resolve a PLT reloc against a local symbol directly,
8102 without using the procedure linkage table. */
8106 /* It's possible that we didn't make a PLT entry for this
8107 symbol. This happens when statically linking PIC code,
8108 or when using -Bsymbolic. Go find a match if there is a
8110 if (htab->plt != NULL)
8112 struct plt_entry *ent;
8113 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8114 if (ent->addend == rel->r_addend
8115 && ent->plt.offset != (bfd_vma) -1)
8117 relocation = (htab->plt->output_section->vma
8118 + htab->plt->output_offset
8120 unresolved_reloc = FALSE;
8126 /* Relocation value is TOC base. */
8127 relocation = TOCstart;
8129 relocation += htab->stub_group[input_section->id].toc_off;
8130 else if (sec != NULL && !unresolved_reloc)
8131 relocation += htab->stub_group[sec->id].toc_off;
8133 unresolved_reloc = TRUE;
8136 /* TOC16 relocs. We want the offset relative to the TOC base,
8137 which is the address of the start of the TOC plus 0x8000.
8138 The TOC consists of sections .got, .toc, .tocbss, and .plt,
8141 case R_PPC64_TOC16_LO:
8142 case R_PPC64_TOC16_HI:
8143 case R_PPC64_TOC16_DS:
8144 case R_PPC64_TOC16_LO_DS:
8145 case R_PPC64_TOC16_HA:
8146 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
8149 /* Relocate against the beginning of the section. */
8150 case R_PPC64_SECTOFF:
8151 case R_PPC64_SECTOFF_LO:
8152 case R_PPC64_SECTOFF_HI:
8153 case R_PPC64_SECTOFF_DS:
8154 case R_PPC64_SECTOFF_LO_DS:
8155 case R_PPC64_SECTOFF_HA:
8157 addend -= sec->output_section->vma;
8161 case R_PPC64_REL14_BRNTAKEN:
8162 case R_PPC64_REL14_BRTAKEN:
8166 case R_PPC64_TPREL16:
8167 case R_PPC64_TPREL16_LO:
8168 case R_PPC64_TPREL16_HI:
8169 case R_PPC64_TPREL16_HA:
8170 case R_PPC64_TPREL16_DS:
8171 case R_PPC64_TPREL16_LO_DS:
8172 case R_PPC64_TPREL16_HIGHER:
8173 case R_PPC64_TPREL16_HIGHERA:
8174 case R_PPC64_TPREL16_HIGHEST:
8175 case R_PPC64_TPREL16_HIGHESTA:
8176 addend -= htab->tls_sec->vma + TP_OFFSET;
8178 /* The TPREL16 relocs shouldn't really be used in shared
8179 libs as they will result in DT_TEXTREL being set, but
8180 support them anyway. */
8184 case R_PPC64_DTPREL16:
8185 case R_PPC64_DTPREL16_LO:
8186 case R_PPC64_DTPREL16_HI:
8187 case R_PPC64_DTPREL16_HA:
8188 case R_PPC64_DTPREL16_DS:
8189 case R_PPC64_DTPREL16_LO_DS:
8190 case R_PPC64_DTPREL16_HIGHER:
8191 case R_PPC64_DTPREL16_HIGHERA:
8192 case R_PPC64_DTPREL16_HIGHEST:
8193 case R_PPC64_DTPREL16_HIGHESTA:
8194 addend -= htab->tls_sec->vma + DTP_OFFSET;
8197 case R_PPC64_DTPMOD64:
8202 case R_PPC64_TPREL64:
8203 addend -= htab->tls_sec->vma + TP_OFFSET;
8206 case R_PPC64_DTPREL64:
8207 addend -= htab->tls_sec->vma + DTP_OFFSET;
8210 /* Relocations that may need to be propagated if this is a
8215 case R_PPC64_ADDR14:
8216 case R_PPC64_ADDR14_BRNTAKEN:
8217 case R_PPC64_ADDR14_BRTAKEN:
8218 case R_PPC64_ADDR16:
8219 case R_PPC64_ADDR16_DS:
8220 case R_PPC64_ADDR16_HA:
8221 case R_PPC64_ADDR16_HI:
8222 case R_PPC64_ADDR16_HIGHER:
8223 case R_PPC64_ADDR16_HIGHERA:
8224 case R_PPC64_ADDR16_HIGHEST:
8225 case R_PPC64_ADDR16_HIGHESTA:
8226 case R_PPC64_ADDR16_LO:
8227 case R_PPC64_ADDR16_LO_DS:
8228 case R_PPC64_ADDR24:
8229 case R_PPC64_ADDR32:
8230 case R_PPC64_ADDR64:
8231 case R_PPC64_UADDR16:
8232 case R_PPC64_UADDR32:
8233 case R_PPC64_UADDR64:
8234 /* r_symndx will be zero only for relocs against symbols
8235 from removed linkonce sections, or sections discarded by
8243 if ((input_section->flags & SEC_ALLOC) == 0)
8246 if (NO_OPD_RELOCS && is_opd)
8251 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8252 || h->root.type != bfd_link_hash_undefweak)
8253 && (MUST_BE_DYN_RELOC (r_type)
8254 || !SYMBOL_CALLS_LOCAL (info, h)))
8255 || (ELIMINATE_COPY_RELOCS
8259 && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
8260 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
8261 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0))
8263 Elf_Internal_Rela outrel;
8264 bfd_boolean skip, relocate;
8269 /* When generating a dynamic object, these relocations
8270 are copied into the output file to be resolved at run
8276 out_off = _bfd_elf_section_offset (output_bfd, info,
8277 input_section, rel->r_offset);
8278 if (out_off == (bfd_vma) -1)
8280 else if (out_off == (bfd_vma) -2)
8281 skip = TRUE, relocate = TRUE;
8282 out_off += (input_section->output_section->vma
8283 + input_section->output_offset);
8284 outrel.r_offset = out_off;
8285 outrel.r_addend = rel->r_addend;
8287 /* Optimize unaligned reloc use. */
8288 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
8289 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
8290 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
8291 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
8292 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
8293 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
8294 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
8295 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
8296 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
8299 memset (&outrel, 0, sizeof outrel);
8300 else if (!SYMBOL_REFERENCES_LOCAL (info, h)
8302 && r_type != R_PPC64_TOC)
8303 outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
8306 /* This symbol is local, or marked to become local,
8307 or this is an opd section reloc which must point
8308 at a local function. */
8309 outrel.r_addend += relocation;
8310 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
8312 if (is_opd && h != NULL)
8314 /* Lie about opd entries. This case occurs
8315 when building shared libraries and we
8316 reference a function in another shared
8317 lib. The same thing happens for a weak
8318 definition in an application that's
8319 overridden by a strong definition in a
8320 shared lib. (I believe this is a generic
8321 bug in binutils handling of weak syms.)
8322 In these cases we won't use the opd
8323 entry in this lib. */
8324 unresolved_reloc = FALSE;
8326 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
8328 /* We need to relocate .opd contents for ld.so.
8329 Prelink also wants simple and consistent rules
8330 for relocs. This make all RELATIVE relocs have
8331 *r_offset equal to r_addend. */
8338 if (bfd_is_abs_section (sec))
8340 else if (sec == NULL || sec->owner == NULL)
8342 bfd_set_error (bfd_error_bad_value);
8349 osec = sec->output_section;
8350 indx = elf_section_data (osec)->dynindx;
8352 /* We are turning this relocation into one
8353 against a section symbol, so subtract out
8354 the output section's address but not the
8355 offset of the input section in the output
8357 outrel.r_addend -= osec->vma;
8360 outrel.r_info = ELF64_R_INFO (indx, r_type);
8364 sreloc = elf_section_data (input_section)->sreloc;
8368 loc = sreloc->contents;
8369 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
8370 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
8372 /* If this reloc is against an external symbol, it will
8373 be computed at runtime, so there's no need to do
8374 anything now. However, for the sake of prelink ensure
8375 that the section contents are a known value. */
8378 unresolved_reloc = FALSE;
8379 /* The value chosen here is quite arbitrary as ld.so
8380 ignores section contents except for the special
8381 case of .opd where the contents might be accessed
8382 before relocation. Choose zero, as that won't
8383 cause reloc overflow. */
8386 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
8387 to improve backward compatibility with older
8389 if (r_type == R_PPC64_ADDR64)
8390 addend = outrel.r_addend;
8391 /* Adjust pc_relative relocs to have zero in *r_offset. */
8392 else if (ppc64_elf_howto_table[r_type]->pc_relative)
8393 addend = (input_section->output_section->vma
8394 + input_section->output_offset
8401 case R_PPC64_GLOB_DAT:
8402 case R_PPC64_JMP_SLOT:
8403 case R_PPC64_RELATIVE:
8404 /* We shouldn't ever see these dynamic relocs in relocatable
8408 case R_PPC64_PLTGOT16:
8409 case R_PPC64_PLTGOT16_DS:
8410 case R_PPC64_PLTGOT16_HA:
8411 case R_PPC64_PLTGOT16_HI:
8412 case R_PPC64_PLTGOT16_LO:
8413 case R_PPC64_PLTGOT16_LO_DS:
8414 case R_PPC64_PLTREL32:
8415 case R_PPC64_PLTREL64:
8416 /* These ones haven't been implemented yet. */
8418 (*_bfd_error_handler)
8419 (_("%s: relocation %s is not supported for symbol %s."),
8420 bfd_archive_filename (input_bfd),
8421 ppc64_elf_howto_table[r_type]->name, sym_name);
8423 bfd_set_error (bfd_error_invalid_operation);
8428 /* Do any further special processing. */
8434 case R_PPC64_ADDR16_HA:
8435 case R_PPC64_ADDR16_HIGHERA:
8436 case R_PPC64_ADDR16_HIGHESTA:
8437 case R_PPC64_GOT16_HA:
8438 case R_PPC64_PLTGOT16_HA:
8439 case R_PPC64_PLT16_HA:
8440 case R_PPC64_TOC16_HA:
8441 case R_PPC64_SECTOFF_HA:
8442 case R_PPC64_TPREL16_HA:
8443 case R_PPC64_DTPREL16_HA:
8444 case R_PPC64_GOT_TLSGD16_HA:
8445 case R_PPC64_GOT_TLSLD16_HA:
8446 case R_PPC64_GOT_TPREL16_HA:
8447 case R_PPC64_GOT_DTPREL16_HA:
8448 case R_PPC64_TPREL16_HIGHER:
8449 case R_PPC64_TPREL16_HIGHERA:
8450 case R_PPC64_TPREL16_HIGHEST:
8451 case R_PPC64_TPREL16_HIGHESTA:
8452 case R_PPC64_DTPREL16_HIGHER:
8453 case R_PPC64_DTPREL16_HIGHERA:
8454 case R_PPC64_DTPREL16_HIGHEST:
8455 case R_PPC64_DTPREL16_HIGHESTA:
8456 /* It's just possible that this symbol is a weak symbol
8457 that's not actually defined anywhere. In that case,
8458 'sec' would be NULL, and we should leave the symbol
8459 alone (it will be set to zero elsewhere in the link). */
8461 /* Add 0x10000 if sign bit in 0:15 is set.
8462 Bits 0:15 are not used. */
8466 case R_PPC64_ADDR16_DS:
8467 case R_PPC64_ADDR16_LO_DS:
8468 case R_PPC64_GOT16_DS:
8469 case R_PPC64_GOT16_LO_DS:
8470 case R_PPC64_PLT16_LO_DS:
8471 case R_PPC64_SECTOFF_DS:
8472 case R_PPC64_SECTOFF_LO_DS:
8473 case R_PPC64_TOC16_DS:
8474 case R_PPC64_TOC16_LO_DS:
8475 case R_PPC64_PLTGOT16_DS:
8476 case R_PPC64_PLTGOT16_LO_DS:
8477 case R_PPC64_GOT_TPREL16_DS:
8478 case R_PPC64_GOT_TPREL16_LO_DS:
8479 case R_PPC64_GOT_DTPREL16_DS:
8480 case R_PPC64_GOT_DTPREL16_LO_DS:
8481 case R_PPC64_TPREL16_DS:
8482 case R_PPC64_TPREL16_LO_DS:
8483 case R_PPC64_DTPREL16_DS:
8484 case R_PPC64_DTPREL16_LO_DS:
8485 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
8487 /* If this reloc is against an lq insn, then the value must be
8488 a multiple of 16. This is somewhat of a hack, but the
8489 "correct" way to do this by defining _DQ forms of all the
8490 _DS relocs bloats all reloc switches in this file. It
8491 doesn't seem to make much sense to use any of these relocs
8492 in data, so testing the insn should be safe. */
8493 if ((insn & (0x3f << 26)) == (56u << 26))
8495 if (((relocation + addend) & mask) != 0)
8497 (*_bfd_error_handler)
8498 (_("%s: error: relocation %s not a multiple of %d"),
8499 bfd_archive_filename (input_bfd),
8500 ppc64_elf_howto_table[r_type]->name,
8502 bfd_set_error (bfd_error_bad_value);
8509 case R_PPC64_REL14_BRNTAKEN:
8510 case R_PPC64_REL14_BRTAKEN:
8511 max_br_offset = 1 << 15;
8515 max_br_offset = 1 << 25;
8518 /* If the branch is out of reach or the TOC register needs
8519 adjusting, then redirect the call to the local stub for
8521 from = (rel->r_offset
8522 + input_section->output_offset
8523 + input_section->output_section->vma);
8524 if ((relocation + addend - from + max_br_offset >= 2 * max_br_offset
8526 && sec->output_section != NULL
8527 && sec->id <= htab->top_id
8528 && (htab->stub_group[sec->id].toc_off
8529 != htab->stub_group[input_section->id].toc_off)))
8530 && (stub_entry = ppc_get_stub_entry (input_section, sec, h,
8531 rel, htab)) != NULL)
8533 /* Munge up the value and addend so that we call the stub
8534 rather than the procedure directly. */
8535 relocation = (stub_entry->stub_offset
8536 + stub_entry->stub_sec->output_offset
8537 + stub_entry->stub_sec->output_section->vma);
8543 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
8544 because such sections are not SEC_ALLOC and thus ld.so will
8545 not process them. */
8546 if (unresolved_reloc
8547 && !((input_section->flags & SEC_DEBUGGING) != 0
8548 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
8550 (*_bfd_error_handler)
8551 (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"),
8552 bfd_archive_filename (input_bfd),
8553 bfd_get_section_name (input_bfd, input_section),
8554 (long) rel->r_offset,
8555 ppc64_elf_howto_table[(int) r_type]->name,
8556 h->root.root.string);
8560 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
8568 if (r != bfd_reloc_ok)
8570 if (sym_name == NULL)
8571 sym_name = "(null)";
8572 if (r == bfd_reloc_overflow)
8577 && h->root.type == bfd_link_hash_undefweak
8578 && ppc64_elf_howto_table[r_type]->pc_relative)
8580 /* Assume this is a call protected by other code that
8581 detects the symbol is undefined. If this is the case,
8582 we can safely ignore the overflow. If not, the
8583 program is hosed anyway, and a little warning isn't
8589 if (!((*info->callbacks->reloc_overflow)
8590 (info, sym_name, ppc64_elf_howto_table[r_type]->name,
8591 rel->r_addend, input_bfd, input_section, rel->r_offset)))
8596 (*_bfd_error_handler)
8597 (_("%s(%s+0x%lx): %s reloc against `%s': error %d"),
8598 bfd_archive_filename (input_bfd),
8599 bfd_get_section_name (input_bfd, input_section),
8600 (long) rel->r_offset,
8601 ppc64_elf_howto_table[r_type]->name,
8612 /* Finish up dynamic symbol handling. We set the contents of various
8613 dynamic sections here. */
8616 ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
8617 struct bfd_link_info *info,
8618 struct elf_link_hash_entry *h,
8619 Elf_Internal_Sym *sym)
8621 struct ppc_link_hash_table *htab;
8624 htab = ppc_hash_table (info);
8625 dynobj = htab->elf.dynobj;
8627 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
8629 struct plt_entry *ent;
8630 Elf_Internal_Rela rela;
8633 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8634 if (ent->plt.offset != (bfd_vma) -1)
8636 /* This symbol has an entry in the procedure linkage
8637 table. Set it up. */
8639 if (htab->plt == NULL
8640 || htab->relplt == NULL
8641 || htab->glink == NULL)
8644 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8645 fill in the PLT entry. */
8646 rela.r_offset = (htab->plt->output_section->vma
8647 + htab->plt->output_offset
8649 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
8650 rela.r_addend = ent->addend;
8652 loc = htab->relplt->contents;
8653 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
8654 * sizeof (Elf64_External_Rela));
8655 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
8659 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
8661 Elf_Internal_Rela rela;
8664 /* This symbol needs a copy reloc. Set it up. */
8666 if (h->dynindx == -1
8667 || (h->root.type != bfd_link_hash_defined
8668 && h->root.type != bfd_link_hash_defweak)
8669 || htab->relbss == NULL)
8672 rela.r_offset = (h->root.u.def.value
8673 + h->root.u.def.section->output_section->vma
8674 + h->root.u.def.section->output_offset);
8675 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
8677 loc = htab->relbss->contents;
8678 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
8679 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
8682 /* Mark some specially defined symbols as absolute. */
8683 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
8684 sym->st_shndx = SHN_ABS;
8689 /* Used to decide how to sort relocs in an optimal manner for the
8690 dynamic linker, before writing them out. */
8692 static enum elf_reloc_type_class
8693 ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
8695 enum elf_ppc64_reloc_type r_type;
8697 r_type = ELF64_R_TYPE (rela->r_info);
8700 case R_PPC64_RELATIVE:
8701 return reloc_class_relative;
8702 case R_PPC64_JMP_SLOT:
8703 return reloc_class_plt;
8705 return reloc_class_copy;
8707 return reloc_class_normal;
8711 /* Finish up the dynamic sections. */
8714 ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
8715 struct bfd_link_info *info)
8717 struct ppc_link_hash_table *htab;
8721 htab = ppc_hash_table (info);
8722 dynobj = htab->elf.dynobj;
8723 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
8725 if (htab->elf.dynamic_sections_created)
8727 Elf64_External_Dyn *dyncon, *dynconend;
8729 if (sdyn == NULL || htab->got == NULL)
8732 dyncon = (Elf64_External_Dyn *) sdyn->contents;
8733 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
8734 for (; dyncon < dynconend; dyncon++)
8736 Elf_Internal_Dyn dyn;
8739 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
8746 case DT_PPC64_GLINK:
8748 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
8749 /* We stupidly defined DT_PPC64_GLINK to be the start
8750 of glink rather than the first entry point, which is
8751 what ld.so needs, and now have a bigger stub to
8752 support automatic multiple TOCs. */
8753 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
8757 s = bfd_get_section_by_name (output_bfd, ".opd");
8760 dyn.d_un.d_ptr = s->vma;
8763 case DT_PPC64_OPDSZ:
8764 s = bfd_get_section_by_name (output_bfd, ".opd");
8767 dyn.d_un.d_val = s->_raw_size;
8772 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
8777 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
8781 dyn.d_un.d_val = htab->relplt->_raw_size;
8785 /* Don't count procedure linkage table relocs in the
8786 overall reloc count. */
8790 dyn.d_un.d_val -= s->_raw_size;
8794 /* We may not be using the standard ELF linker script.
8795 If .rela.plt is the first .rela section, we adjust
8796 DT_RELA to not include it. */
8800 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
8802 dyn.d_un.d_ptr += s->_raw_size;
8806 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
8810 if (htab->got != NULL && htab->got->_raw_size != 0)
8812 /* Fill in the first entry in the global offset table.
8813 We use it to hold the link-time TOCbase. */
8814 bfd_put_64 (output_bfd,
8815 elf_gp (output_bfd) + TOC_BASE_OFF,
8816 htab->got->contents);
8818 /* Set .got entry size. */
8819 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
8822 if (htab->plt != NULL && htab->plt->_raw_size != 0)
8824 /* Set .plt entry size. */
8825 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
8829 /* We need to handle writing out multiple GOT sections ourselves,
8830 since we didn't add them to DYNOBJ. */
8831 while ((dynobj = dynobj->link_next) != NULL)
8834 s = ppc64_elf_tdata (dynobj)->got;
8836 && s->_raw_size != 0
8837 && s->output_section != bfd_abs_section_ptr
8838 && !bfd_set_section_contents (output_bfd, s->output_section,
8839 s->contents, s->output_offset,
8842 s = ppc64_elf_tdata (dynobj)->relgot;
8844 && s->_raw_size != 0
8845 && s->output_section != bfd_abs_section_ptr
8846 && !bfd_set_section_contents (output_bfd, s->output_section,
8847 s->contents, s->output_offset,
8855 #include "elf64-target.h"