1 /* PowerPC-specific support for 32-bit ELF
2 Copyright (C) 1994-2017 Free Software Foundation, Inc.
3 Written by Ian Lance Taylor, Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the
19 Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
20 Boston, MA 02110-1301, USA. */
23 /* This file is based on a preliminary PowerPC ELF ABI. The
24 information may not match the final PowerPC ELF ABI. It includes
25 suggestions from the in-progress Embedded PowerPC ABI, and that
26 information may also not match. */
35 #include "elf32-ppc.h"
36 #include "elf-vxworks.h"
38 #include "opcode/ppc.h"
40 typedef enum split16_format_type
47 /* RELA relocations are used here. */
49 static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
50 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
51 static bfd_reloc_status_type ppc_elf_unhandled_reloc
52 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
54 /* Branch prediction bit for branch taken relocs. */
55 #define BRANCH_PREDICT_BIT 0x200000
56 /* Mask to set RA in memory instructions. */
57 #define RA_REGISTER_MASK 0x001f0000
58 /* Value to shift register by to insert RA. */
59 #define RA_REGISTER_SHIFT 16
61 /* The name of the dynamic interpreter. This is put in the .interp
63 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
65 /* For old-style PLT. */
66 /* The number of single-slot PLT entries (the rest use two slots). */
67 #define PLT_NUM_SINGLE_ENTRIES 8192
69 /* For new-style .glink and .plt. */
70 #define GLINK_PLTRESOLVE 16*4
71 #define GLINK_ENTRY_SIZE 4*4
72 #define TLS_GET_ADDR_GLINK_SIZE 12*4
74 /* VxWorks uses its own plt layout, filled in by the static linker. */
76 /* The standard VxWorks PLT entry. */
77 #define VXWORKS_PLT_ENTRY_SIZE 32
78 static const bfd_vma ppc_elf_vxworks_plt_entry
79 [VXWORKS_PLT_ENTRY_SIZE
/ 4] =
81 0x3d800000, /* lis r12,0 */
82 0x818c0000, /* lwz r12,0(r12) */
83 0x7d8903a6, /* mtctr r12 */
84 0x4e800420, /* bctr */
85 0x39600000, /* li r11,0 */
86 0x48000000, /* b 14 <.PLT0resolve+0x4> */
90 static const bfd_vma ppc_elf_vxworks_pic_plt_entry
91 [VXWORKS_PLT_ENTRY_SIZE
/ 4] =
93 0x3d9e0000, /* addis r12,r30,0 */
94 0x818c0000, /* lwz r12,0(r12) */
95 0x7d8903a6, /* mtctr r12 */
96 0x4e800420, /* bctr */
97 0x39600000, /* li r11,0 */
98 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
100 0x60000000, /* nop */
103 /* The initial VxWorks PLT entry. */
104 #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
105 static const bfd_vma ppc_elf_vxworks_plt0_entry
106 [VXWORKS_PLT_INITIAL_ENTRY_SIZE
/ 4] =
108 0x3d800000, /* lis r12,0 */
109 0x398c0000, /* addi r12,r12,0 */
110 0x800c0008, /* lwz r0,8(r12) */
111 0x7c0903a6, /* mtctr r0 */
112 0x818c0004, /* lwz r12,4(r12) */
113 0x4e800420, /* bctr */
114 0x60000000, /* nop */
115 0x60000000, /* nop */
117 static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
118 [VXWORKS_PLT_INITIAL_ENTRY_SIZE
/ 4] =
120 0x819e0008, /* lwz r12,8(r30) */
121 0x7d8903a6, /* mtctr r12 */
122 0x819e0004, /* lwz r12,4(r30) */
123 0x4e800420, /* bctr */
124 0x60000000, /* nop */
125 0x60000000, /* nop */
126 0x60000000, /* nop */
127 0x60000000, /* nop */
130 /* For executables, we have some additional relocations in
131 .rela.plt.unloaded, for the kernel loader. */
133 /* The number of non-JMP_SLOT relocations per PLT0 slot. */
134 #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
135 /* The number of relocations in the PLTResolve slot. */
136 #define VXWORKS_PLTRESOLVE_RELOCS 2
137 /* The number of relocations in the PLTResolve slot when when creating
139 #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
141 /* Some instructions. */
142 #define ADDIS_11_11 0x3d6b0000
143 #define ADDIS_11_30 0x3d7e0000
144 #define ADDIS_12_12 0x3d8c0000
145 #define ADDI_11_11 0x396b0000
146 #define ADD_0_11_11 0x7c0b5a14
147 #define ADD_3_12_2 0x7c6c1214
148 #define ADD_11_0_11 0x7d605a14
150 #define BA 0x48000002
151 #define BCL_20_31 0x429f0005
152 #define BCTR 0x4e800420
153 #define BEQLR 0x4d820020
154 #define CMPWI_11_0 0x2c0b0000
155 #define LIS_11 0x3d600000
156 #define LIS_12 0x3d800000
157 #define LWZU_0_12 0x840c0000
158 #define LWZ_0_12 0x800c0000
159 #define LWZ_11_3 0x81630000
160 #define LWZ_11_11 0x816b0000
161 #define LWZ_11_30 0x817e0000
162 #define LWZ_12_3 0x81830000
163 #define LWZ_12_12 0x818c0000
164 #define MR_0_3 0x7c601b78
165 #define MR_3_0 0x7c030378
166 #define MFLR_0 0x7c0802a6
167 #define MFLR_12 0x7d8802a6
168 #define MTCTR_0 0x7c0903a6
169 #define MTCTR_11 0x7d6903a6
170 #define MTLR_0 0x7c0803a6
171 #define NOP 0x60000000
172 #define SUB_11_11_12 0x7d6c5850
174 /* Offset of tp and dtp pointers from start of TLS block. */
175 #define TP_OFFSET 0x7000
176 #define DTP_OFFSET 0x8000
178 /* The value of a defined global symbol. */
179 #define SYM_VAL(SYM) \
180 ((SYM)->root.u.def.section->output_section->vma \
181 + (SYM)->root.u.def.section->output_offset \
182 + (SYM)->root.u.def.value)
184 static reloc_howto_type
*ppc_elf_howto_table
[R_PPC_max
];
186 static reloc_howto_type ppc_elf_howto_raw
[] = {
187 /* This reloc does nothing. */
188 HOWTO (R_PPC_NONE
, /* type */
190 3, /* size (0 = byte, 1 = short, 2 = long) */
192 FALSE
, /* pc_relative */
194 complain_overflow_dont
, /* complain_on_overflow */
195 bfd_elf_generic_reloc
, /* special_function */
196 "R_PPC_NONE", /* name */
197 FALSE
, /* partial_inplace */
200 FALSE
), /* pcrel_offset */
202 /* A standard 32 bit relocation. */
203 HOWTO (R_PPC_ADDR32
, /* type */
205 2, /* size (0 = byte, 1 = short, 2 = long) */
207 FALSE
, /* pc_relative */
209 complain_overflow_dont
, /* complain_on_overflow */
210 bfd_elf_generic_reloc
, /* special_function */
211 "R_PPC_ADDR32", /* name */
212 FALSE
, /* partial_inplace */
214 0xffffffff, /* dst_mask */
215 FALSE
), /* pcrel_offset */
217 /* An absolute 26 bit branch; the lower two bits must be zero.
218 FIXME: we don't check that, we just clear them. */
219 HOWTO (R_PPC_ADDR24
, /* type */
221 2, /* size (0 = byte, 1 = short, 2 = long) */
223 FALSE
, /* pc_relative */
225 complain_overflow_signed
, /* complain_on_overflow */
226 bfd_elf_generic_reloc
, /* special_function */
227 "R_PPC_ADDR24", /* name */
228 FALSE
, /* partial_inplace */
230 0x3fffffc, /* dst_mask */
231 FALSE
), /* pcrel_offset */
233 /* A standard 16 bit relocation. */
234 HOWTO (R_PPC_ADDR16
, /* type */
236 1, /* size (0 = byte, 1 = short, 2 = long) */
238 FALSE
, /* pc_relative */
240 complain_overflow_bitfield
, /* complain_on_overflow */
241 bfd_elf_generic_reloc
, /* special_function */
242 "R_PPC_ADDR16", /* name */
243 FALSE
, /* partial_inplace */
245 0xffff, /* dst_mask */
246 FALSE
), /* pcrel_offset */
248 /* A 16 bit relocation without overflow. */
249 HOWTO (R_PPC_ADDR16_LO
, /* type */
251 1, /* size (0 = byte, 1 = short, 2 = long) */
253 FALSE
, /* pc_relative */
255 complain_overflow_dont
,/* complain_on_overflow */
256 bfd_elf_generic_reloc
, /* special_function */
257 "R_PPC_ADDR16_LO", /* name */
258 FALSE
, /* partial_inplace */
260 0xffff, /* dst_mask */
261 FALSE
), /* pcrel_offset */
263 /* The high order 16 bits of an address. */
264 HOWTO (R_PPC_ADDR16_HI
, /* type */
266 1, /* size (0 = byte, 1 = short, 2 = long) */
268 FALSE
, /* pc_relative */
270 complain_overflow_dont
, /* complain_on_overflow */
271 bfd_elf_generic_reloc
, /* special_function */
272 "R_PPC_ADDR16_HI", /* name */
273 FALSE
, /* partial_inplace */
275 0xffff, /* dst_mask */
276 FALSE
), /* pcrel_offset */
278 /* The high order 16 bits of an address, plus 1 if the contents of
279 the low 16 bits, treated as a signed number, is negative. */
280 HOWTO (R_PPC_ADDR16_HA
, /* type */
282 1, /* size (0 = byte, 1 = short, 2 = long) */
284 FALSE
, /* pc_relative */
286 complain_overflow_dont
, /* complain_on_overflow */
287 ppc_elf_addr16_ha_reloc
, /* special_function */
288 "R_PPC_ADDR16_HA", /* name */
289 FALSE
, /* partial_inplace */
291 0xffff, /* dst_mask */
292 FALSE
), /* pcrel_offset */
294 /* An absolute 16 bit branch; the lower two bits must be zero.
295 FIXME: we don't check that, we just clear them. */
296 HOWTO (R_PPC_ADDR14
, /* type */
298 2, /* size (0 = byte, 1 = short, 2 = long) */
300 FALSE
, /* pc_relative */
302 complain_overflow_signed
, /* complain_on_overflow */
303 bfd_elf_generic_reloc
, /* special_function */
304 "R_PPC_ADDR14", /* name */
305 FALSE
, /* partial_inplace */
307 0xfffc, /* dst_mask */
308 FALSE
), /* pcrel_offset */
310 /* An absolute 16 bit branch, for which bit 10 should be set to
311 indicate that the branch is expected to be taken. The lower two
312 bits must be zero. */
313 HOWTO (R_PPC_ADDR14_BRTAKEN
, /* type */
315 2, /* size (0 = byte, 1 = short, 2 = long) */
317 FALSE
, /* pc_relative */
319 complain_overflow_signed
, /* complain_on_overflow */
320 bfd_elf_generic_reloc
, /* special_function */
321 "R_PPC_ADDR14_BRTAKEN",/* name */
322 FALSE
, /* partial_inplace */
324 0xfffc, /* dst_mask */
325 FALSE
), /* pcrel_offset */
327 /* An absolute 16 bit branch, for which bit 10 should be set to
328 indicate that the branch is not expected to be taken. The lower
329 two bits must be zero. */
330 HOWTO (R_PPC_ADDR14_BRNTAKEN
, /* type */
332 2, /* size (0 = byte, 1 = short, 2 = long) */
334 FALSE
, /* pc_relative */
336 complain_overflow_signed
, /* complain_on_overflow */
337 bfd_elf_generic_reloc
, /* special_function */
338 "R_PPC_ADDR14_BRNTAKEN",/* name */
339 FALSE
, /* partial_inplace */
341 0xfffc, /* dst_mask */
342 FALSE
), /* pcrel_offset */
344 /* A relative 26 bit branch; the lower two bits must be zero. */
345 HOWTO (R_PPC_REL24
, /* type */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
349 TRUE
, /* pc_relative */
351 complain_overflow_signed
, /* complain_on_overflow */
352 bfd_elf_generic_reloc
, /* special_function */
353 "R_PPC_REL24", /* name */
354 FALSE
, /* partial_inplace */
356 0x3fffffc, /* dst_mask */
357 TRUE
), /* pcrel_offset */
359 /* A relative 16 bit branch; the lower two bits must be zero. */
360 HOWTO (R_PPC_REL14
, /* type */
362 2, /* size (0 = byte, 1 = short, 2 = long) */
364 TRUE
, /* pc_relative */
366 complain_overflow_signed
, /* complain_on_overflow */
367 bfd_elf_generic_reloc
, /* special_function */
368 "R_PPC_REL14", /* name */
369 FALSE
, /* partial_inplace */
371 0xfffc, /* dst_mask */
372 TRUE
), /* pcrel_offset */
374 /* A relative 16 bit branch. Bit 10 should be set to indicate that
375 the branch is expected to be taken. The lower two bits must be
377 HOWTO (R_PPC_REL14_BRTAKEN
, /* type */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
381 TRUE
, /* pc_relative */
383 complain_overflow_signed
, /* complain_on_overflow */
384 bfd_elf_generic_reloc
, /* special_function */
385 "R_PPC_REL14_BRTAKEN", /* name */
386 FALSE
, /* partial_inplace */
388 0xfffc, /* dst_mask */
389 TRUE
), /* pcrel_offset */
391 /* A relative 16 bit branch. Bit 10 should be set to indicate that
392 the branch is not expected to be taken. The lower two bits must
394 HOWTO (R_PPC_REL14_BRNTAKEN
, /* type */
396 2, /* size (0 = byte, 1 = short, 2 = long) */
398 TRUE
, /* pc_relative */
400 complain_overflow_signed
, /* complain_on_overflow */
401 bfd_elf_generic_reloc
, /* special_function */
402 "R_PPC_REL14_BRNTAKEN",/* name */
403 FALSE
, /* partial_inplace */
405 0xfffc, /* dst_mask */
406 TRUE
), /* pcrel_offset */
408 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
410 HOWTO (R_PPC_GOT16
, /* type */
412 1, /* size (0 = byte, 1 = short, 2 = long) */
414 FALSE
, /* pc_relative */
416 complain_overflow_signed
, /* complain_on_overflow */
417 ppc_elf_unhandled_reloc
, /* special_function */
418 "R_PPC_GOT16", /* name */
419 FALSE
, /* partial_inplace */
421 0xffff, /* dst_mask */
422 FALSE
), /* pcrel_offset */
424 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
426 HOWTO (R_PPC_GOT16_LO
, /* type */
428 1, /* size (0 = byte, 1 = short, 2 = long) */
430 FALSE
, /* pc_relative */
432 complain_overflow_dont
, /* complain_on_overflow */
433 ppc_elf_unhandled_reloc
, /* special_function */
434 "R_PPC_GOT16_LO", /* name */
435 FALSE
, /* partial_inplace */
437 0xffff, /* dst_mask */
438 FALSE
), /* pcrel_offset */
440 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
442 HOWTO (R_PPC_GOT16_HI
, /* type */
444 1, /* size (0 = byte, 1 = short, 2 = long) */
446 FALSE
, /* pc_relative */
448 complain_overflow_dont
, /* complain_on_overflow */
449 ppc_elf_unhandled_reloc
, /* special_function */
450 "R_PPC_GOT16_HI", /* name */
451 FALSE
, /* partial_inplace */
453 0xffff, /* dst_mask */
454 FALSE
), /* pcrel_offset */
456 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
458 HOWTO (R_PPC_GOT16_HA
, /* type */
460 1, /* size (0 = byte, 1 = short, 2 = long) */
462 FALSE
, /* pc_relative */
464 complain_overflow_dont
, /* complain_on_overflow */
465 ppc_elf_unhandled_reloc
, /* special_function */
466 "R_PPC_GOT16_HA", /* name */
467 FALSE
, /* partial_inplace */
469 0xffff, /* dst_mask */
470 FALSE
), /* pcrel_offset */
472 /* Like R_PPC_REL24, but referring to the procedure linkage table
473 entry for the symbol. */
474 HOWTO (R_PPC_PLTREL24
, /* type */
476 2, /* size (0 = byte, 1 = short, 2 = long) */
478 TRUE
, /* pc_relative */
480 complain_overflow_signed
, /* complain_on_overflow */
481 ppc_elf_unhandled_reloc
, /* special_function */
482 "R_PPC_PLTREL24", /* name */
483 FALSE
, /* partial_inplace */
485 0x3fffffc, /* dst_mask */
486 TRUE
), /* pcrel_offset */
488 /* This is used only by the dynamic linker. The symbol should exist
489 both in the object being run and in some shared library. The
490 dynamic linker copies the data addressed by the symbol from the
491 shared library into the object, because the object being
492 run has to have the data at some particular address. */
493 HOWTO (R_PPC_COPY
, /* type */
495 2, /* size (0 = byte, 1 = short, 2 = long) */
497 FALSE
, /* pc_relative */
499 complain_overflow_dont
, /* complain_on_overflow */
500 ppc_elf_unhandled_reloc
, /* special_function */
501 "R_PPC_COPY", /* name */
502 FALSE
, /* partial_inplace */
505 FALSE
), /* pcrel_offset */
507 /* Like R_PPC_ADDR32, but used when setting global offset table
509 HOWTO (R_PPC_GLOB_DAT
, /* type */
511 2, /* size (0 = byte, 1 = short, 2 = long) */
513 FALSE
, /* pc_relative */
515 complain_overflow_dont
, /* complain_on_overflow */
516 ppc_elf_unhandled_reloc
, /* special_function */
517 "R_PPC_GLOB_DAT", /* name */
518 FALSE
, /* partial_inplace */
520 0xffffffff, /* dst_mask */
521 FALSE
), /* pcrel_offset */
523 /* Marks a procedure linkage table entry for a symbol. */
524 HOWTO (R_PPC_JMP_SLOT
, /* type */
526 2, /* size (0 = byte, 1 = short, 2 = long) */
528 FALSE
, /* pc_relative */
530 complain_overflow_dont
, /* complain_on_overflow */
531 ppc_elf_unhandled_reloc
, /* special_function */
532 "R_PPC_JMP_SLOT", /* name */
533 FALSE
, /* partial_inplace */
536 FALSE
), /* pcrel_offset */
538 /* Used only by the dynamic linker. When the object is run, this
539 longword is set to the load address of the object, plus the
541 HOWTO (R_PPC_RELATIVE
, /* type */
543 2, /* size (0 = byte, 1 = short, 2 = long) */
545 FALSE
, /* pc_relative */
547 complain_overflow_dont
, /* complain_on_overflow */
548 bfd_elf_generic_reloc
, /* special_function */
549 "R_PPC_RELATIVE", /* name */
550 FALSE
, /* partial_inplace */
552 0xffffffff, /* dst_mask */
553 FALSE
), /* pcrel_offset */
555 /* Like R_PPC_REL24, but uses the value of the symbol within the
556 object rather than the final value. Normally used for
557 _GLOBAL_OFFSET_TABLE_. */
558 HOWTO (R_PPC_LOCAL24PC
, /* type */
560 2, /* size (0 = byte, 1 = short, 2 = long) */
562 TRUE
, /* pc_relative */
564 complain_overflow_signed
, /* complain_on_overflow */
565 bfd_elf_generic_reloc
, /* special_function */
566 "R_PPC_LOCAL24PC", /* name */
567 FALSE
, /* partial_inplace */
569 0x3fffffc, /* dst_mask */
570 TRUE
), /* pcrel_offset */
572 /* Like R_PPC_ADDR32, but may be unaligned. */
573 HOWTO (R_PPC_UADDR32
, /* type */
575 2, /* size (0 = byte, 1 = short, 2 = long) */
577 FALSE
, /* pc_relative */
579 complain_overflow_dont
, /* complain_on_overflow */
580 bfd_elf_generic_reloc
, /* special_function */
581 "R_PPC_UADDR32", /* name */
582 FALSE
, /* partial_inplace */
584 0xffffffff, /* dst_mask */
585 FALSE
), /* pcrel_offset */
587 /* Like R_PPC_ADDR16, but may be unaligned. */
588 HOWTO (R_PPC_UADDR16
, /* type */
590 1, /* size (0 = byte, 1 = short, 2 = long) */
592 FALSE
, /* pc_relative */
594 complain_overflow_bitfield
, /* complain_on_overflow */
595 bfd_elf_generic_reloc
, /* special_function */
596 "R_PPC_UADDR16", /* name */
597 FALSE
, /* partial_inplace */
599 0xffff, /* dst_mask */
600 FALSE
), /* pcrel_offset */
602 /* 32-bit PC relative */
603 HOWTO (R_PPC_REL32
, /* type */
605 2, /* size (0 = byte, 1 = short, 2 = long) */
607 TRUE
, /* pc_relative */
609 complain_overflow_dont
, /* complain_on_overflow */
610 bfd_elf_generic_reloc
, /* special_function */
611 "R_PPC_REL32", /* name */
612 FALSE
, /* partial_inplace */
614 0xffffffff, /* dst_mask */
615 TRUE
), /* pcrel_offset */
617 /* 32-bit relocation to the symbol's procedure linkage table.
618 FIXME: not supported. */
619 HOWTO (R_PPC_PLT32
, /* type */
621 2, /* size (0 = byte, 1 = short, 2 = long) */
623 FALSE
, /* pc_relative */
625 complain_overflow_dont
, /* complain_on_overflow */
626 ppc_elf_unhandled_reloc
, /* special_function */
627 "R_PPC_PLT32", /* name */
628 FALSE
, /* partial_inplace */
631 FALSE
), /* pcrel_offset */
633 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
634 FIXME: not supported. */
635 HOWTO (R_PPC_PLTREL32
, /* type */
637 2, /* size (0 = byte, 1 = short, 2 = long) */
639 TRUE
, /* pc_relative */
641 complain_overflow_dont
, /* complain_on_overflow */
642 ppc_elf_unhandled_reloc
, /* special_function */
643 "R_PPC_PLTREL32", /* name */
644 FALSE
, /* partial_inplace */
647 TRUE
), /* pcrel_offset */
649 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
651 HOWTO (R_PPC_PLT16_LO
, /* type */
653 1, /* size (0 = byte, 1 = short, 2 = long) */
655 FALSE
, /* pc_relative */
657 complain_overflow_dont
, /* complain_on_overflow */
658 ppc_elf_unhandled_reloc
, /* special_function */
659 "R_PPC_PLT16_LO", /* name */
660 FALSE
, /* partial_inplace */
662 0xffff, /* dst_mask */
663 FALSE
), /* pcrel_offset */
665 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
667 HOWTO (R_PPC_PLT16_HI
, /* type */
669 1, /* size (0 = byte, 1 = short, 2 = long) */
671 FALSE
, /* pc_relative */
673 complain_overflow_dont
, /* complain_on_overflow */
674 ppc_elf_unhandled_reloc
, /* special_function */
675 "R_PPC_PLT16_HI", /* name */
676 FALSE
, /* partial_inplace */
678 0xffff, /* dst_mask */
679 FALSE
), /* pcrel_offset */
681 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
683 HOWTO (R_PPC_PLT16_HA
, /* type */
685 1, /* size (0 = byte, 1 = short, 2 = long) */
687 FALSE
, /* pc_relative */
689 complain_overflow_dont
, /* complain_on_overflow */
690 ppc_elf_unhandled_reloc
, /* special_function */
691 "R_PPC_PLT16_HA", /* name */
692 FALSE
, /* partial_inplace */
694 0xffff, /* dst_mask */
695 FALSE
), /* pcrel_offset */
697 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
699 HOWTO (R_PPC_SDAREL16
, /* type */
701 1, /* size (0 = byte, 1 = short, 2 = long) */
703 FALSE
, /* pc_relative */
705 complain_overflow_signed
, /* complain_on_overflow */
706 ppc_elf_unhandled_reloc
, /* special_function */
707 "R_PPC_SDAREL16", /* name */
708 FALSE
, /* partial_inplace */
710 0xffff, /* dst_mask */
711 FALSE
), /* pcrel_offset */
713 /* 16-bit section relative relocation. */
714 HOWTO (R_PPC_SECTOFF
, /* type */
716 1, /* size (0 = byte, 1 = short, 2 = long) */
718 FALSE
, /* pc_relative */
720 complain_overflow_signed
, /* complain_on_overflow */
721 ppc_elf_unhandled_reloc
, /* special_function */
722 "R_PPC_SECTOFF", /* name */
723 FALSE
, /* partial_inplace */
725 0xffff, /* dst_mask */
726 FALSE
), /* pcrel_offset */
728 /* 16-bit lower half section relative relocation. */
729 HOWTO (R_PPC_SECTOFF_LO
, /* type */
731 1, /* size (0 = byte, 1 = short, 2 = long) */
733 FALSE
, /* pc_relative */
735 complain_overflow_dont
, /* complain_on_overflow */
736 ppc_elf_unhandled_reloc
, /* special_function */
737 "R_PPC_SECTOFF_LO", /* name */
738 FALSE
, /* partial_inplace */
740 0xffff, /* dst_mask */
741 FALSE
), /* pcrel_offset */
743 /* 16-bit upper half section relative relocation. */
744 HOWTO (R_PPC_SECTOFF_HI
, /* type */
746 1, /* size (0 = byte, 1 = short, 2 = long) */
748 FALSE
, /* pc_relative */
750 complain_overflow_dont
, /* complain_on_overflow */
751 ppc_elf_unhandled_reloc
, /* special_function */
752 "R_PPC_SECTOFF_HI", /* name */
753 FALSE
, /* partial_inplace */
755 0xffff, /* dst_mask */
756 FALSE
), /* pcrel_offset */
758 /* 16-bit upper half adjusted section relative relocation. */
759 HOWTO (R_PPC_SECTOFF_HA
, /* type */
761 1, /* size (0 = byte, 1 = short, 2 = long) */
763 FALSE
, /* pc_relative */
765 complain_overflow_dont
, /* complain_on_overflow */
766 ppc_elf_unhandled_reloc
, /* special_function */
767 "R_PPC_SECTOFF_HA", /* name */
768 FALSE
, /* partial_inplace */
770 0xffff, /* dst_mask */
771 FALSE
), /* pcrel_offset */
773 /* Marker relocs for TLS. */
776 2, /* size (0 = byte, 1 = short, 2 = long) */
778 FALSE
, /* pc_relative */
780 complain_overflow_dont
, /* complain_on_overflow */
781 bfd_elf_generic_reloc
, /* special_function */
782 "R_PPC_TLS", /* name */
783 FALSE
, /* partial_inplace */
786 FALSE
), /* pcrel_offset */
790 2, /* size (0 = byte, 1 = short, 2 = long) */
792 FALSE
, /* pc_relative */
794 complain_overflow_dont
, /* complain_on_overflow */
795 bfd_elf_generic_reloc
, /* special_function */
796 "R_PPC_TLSGD", /* name */
797 FALSE
, /* partial_inplace */
800 FALSE
), /* pcrel_offset */
804 2, /* size (0 = byte, 1 = short, 2 = long) */
806 FALSE
, /* pc_relative */
808 complain_overflow_dont
, /* complain_on_overflow */
809 bfd_elf_generic_reloc
, /* special_function */
810 "R_PPC_TLSLD", /* name */
811 FALSE
, /* partial_inplace */
814 FALSE
), /* pcrel_offset */
816 /* Computes the load module index of the load module that contains the
817 definition of its TLS sym. */
818 HOWTO (R_PPC_DTPMOD32
,
820 2, /* size (0 = byte, 1 = short, 2 = long) */
822 FALSE
, /* pc_relative */
824 complain_overflow_dont
, /* complain_on_overflow */
825 ppc_elf_unhandled_reloc
, /* special_function */
826 "R_PPC_DTPMOD32", /* name */
827 FALSE
, /* partial_inplace */
829 0xffffffff, /* dst_mask */
830 FALSE
), /* pcrel_offset */
832 /* Computes a dtv-relative displacement, the difference between the value
833 of sym+add and the base address of the thread-local storage block that
834 contains the definition of sym, minus 0x8000. */
835 HOWTO (R_PPC_DTPREL32
,
837 2, /* size (0 = byte, 1 = short, 2 = long) */
839 FALSE
, /* pc_relative */
841 complain_overflow_dont
, /* complain_on_overflow */
842 ppc_elf_unhandled_reloc
, /* special_function */
843 "R_PPC_DTPREL32", /* name */
844 FALSE
, /* partial_inplace */
846 0xffffffff, /* dst_mask */
847 FALSE
), /* pcrel_offset */
849 /* A 16 bit dtprel reloc. */
850 HOWTO (R_PPC_DTPREL16
,
852 1, /* size (0 = byte, 1 = short, 2 = long) */
854 FALSE
, /* pc_relative */
856 complain_overflow_signed
, /* complain_on_overflow */
857 ppc_elf_unhandled_reloc
, /* special_function */
858 "R_PPC_DTPREL16", /* name */
859 FALSE
, /* partial_inplace */
861 0xffff, /* dst_mask */
862 FALSE
), /* pcrel_offset */
864 /* Like DTPREL16, but no overflow. */
865 HOWTO (R_PPC_DTPREL16_LO
,
867 1, /* size (0 = byte, 1 = short, 2 = long) */
869 FALSE
, /* pc_relative */
871 complain_overflow_dont
, /* complain_on_overflow */
872 ppc_elf_unhandled_reloc
, /* special_function */
873 "R_PPC_DTPREL16_LO", /* name */
874 FALSE
, /* partial_inplace */
876 0xffff, /* dst_mask */
877 FALSE
), /* pcrel_offset */
879 /* Like DTPREL16_LO, but next higher group of 16 bits. */
880 HOWTO (R_PPC_DTPREL16_HI
,
882 1, /* size (0 = byte, 1 = short, 2 = long) */
884 FALSE
, /* pc_relative */
886 complain_overflow_dont
, /* complain_on_overflow */
887 ppc_elf_unhandled_reloc
, /* special_function */
888 "R_PPC_DTPREL16_HI", /* name */
889 FALSE
, /* partial_inplace */
891 0xffff, /* dst_mask */
892 FALSE
), /* pcrel_offset */
894 /* Like DTPREL16_HI, but adjust for low 16 bits. */
895 HOWTO (R_PPC_DTPREL16_HA
,
897 1, /* size (0 = byte, 1 = short, 2 = long) */
899 FALSE
, /* pc_relative */
901 complain_overflow_dont
, /* complain_on_overflow */
902 ppc_elf_unhandled_reloc
, /* special_function */
903 "R_PPC_DTPREL16_HA", /* name */
904 FALSE
, /* partial_inplace */
906 0xffff, /* dst_mask */
907 FALSE
), /* pcrel_offset */
909 /* Computes a tp-relative displacement, the difference between the value of
910 sym+add and the value of the thread pointer (r13). */
911 HOWTO (R_PPC_TPREL32
,
913 2, /* size (0 = byte, 1 = short, 2 = long) */
915 FALSE
, /* pc_relative */
917 complain_overflow_dont
, /* complain_on_overflow */
918 ppc_elf_unhandled_reloc
, /* special_function */
919 "R_PPC_TPREL32", /* name */
920 FALSE
, /* partial_inplace */
922 0xffffffff, /* dst_mask */
923 FALSE
), /* pcrel_offset */
925 /* A 16 bit tprel reloc. */
926 HOWTO (R_PPC_TPREL16
,
928 1, /* size (0 = byte, 1 = short, 2 = long) */
930 FALSE
, /* pc_relative */
932 complain_overflow_signed
, /* complain_on_overflow */
933 ppc_elf_unhandled_reloc
, /* special_function */
934 "R_PPC_TPREL16", /* name */
935 FALSE
, /* partial_inplace */
937 0xffff, /* dst_mask */
938 FALSE
), /* pcrel_offset */
940 /* Like TPREL16, but no overflow. */
941 HOWTO (R_PPC_TPREL16_LO
,
943 1, /* size (0 = byte, 1 = short, 2 = long) */
945 FALSE
, /* pc_relative */
947 complain_overflow_dont
, /* complain_on_overflow */
948 ppc_elf_unhandled_reloc
, /* special_function */
949 "R_PPC_TPREL16_LO", /* name */
950 FALSE
, /* partial_inplace */
952 0xffff, /* dst_mask */
953 FALSE
), /* pcrel_offset */
955 /* Like TPREL16_LO, but next higher group of 16 bits. */
956 HOWTO (R_PPC_TPREL16_HI
,
958 1, /* size (0 = byte, 1 = short, 2 = long) */
960 FALSE
, /* pc_relative */
962 complain_overflow_dont
, /* complain_on_overflow */
963 ppc_elf_unhandled_reloc
, /* special_function */
964 "R_PPC_TPREL16_HI", /* name */
965 FALSE
, /* partial_inplace */
967 0xffff, /* dst_mask */
968 FALSE
), /* pcrel_offset */
970 /* Like TPREL16_HI, but adjust for low 16 bits. */
971 HOWTO (R_PPC_TPREL16_HA
,
973 1, /* size (0 = byte, 1 = short, 2 = long) */
975 FALSE
, /* pc_relative */
977 complain_overflow_dont
, /* complain_on_overflow */
978 ppc_elf_unhandled_reloc
, /* special_function */
979 "R_PPC_TPREL16_HA", /* name */
980 FALSE
, /* partial_inplace */
982 0xffff, /* dst_mask */
983 FALSE
), /* pcrel_offset */
985 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
986 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
987 to the first entry. */
988 HOWTO (R_PPC_GOT_TLSGD16
,
990 1, /* size (0 = byte, 1 = short, 2 = long) */
992 FALSE
, /* pc_relative */
994 complain_overflow_signed
, /* complain_on_overflow */
995 ppc_elf_unhandled_reloc
, /* special_function */
996 "R_PPC_GOT_TLSGD16", /* name */
997 FALSE
, /* partial_inplace */
999 0xffff, /* dst_mask */
1000 FALSE
), /* pcrel_offset */
1002 /* Like GOT_TLSGD16, but no overflow. */
1003 HOWTO (R_PPC_GOT_TLSGD16_LO
,
1005 1, /* size (0 = byte, 1 = short, 2 = long) */
1007 FALSE
, /* pc_relative */
1009 complain_overflow_dont
, /* complain_on_overflow */
1010 ppc_elf_unhandled_reloc
, /* special_function */
1011 "R_PPC_GOT_TLSGD16_LO", /* name */
1012 FALSE
, /* partial_inplace */
1014 0xffff, /* dst_mask */
1015 FALSE
), /* pcrel_offset */
1017 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1018 HOWTO (R_PPC_GOT_TLSGD16_HI
,
1019 16, /* rightshift */
1020 1, /* size (0 = byte, 1 = short, 2 = long) */
1022 FALSE
, /* pc_relative */
1024 complain_overflow_dont
, /* complain_on_overflow */
1025 ppc_elf_unhandled_reloc
, /* special_function */
1026 "R_PPC_GOT_TLSGD16_HI", /* name */
1027 FALSE
, /* partial_inplace */
1029 0xffff, /* dst_mask */
1030 FALSE
), /* pcrel_offset */
1032 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1033 HOWTO (R_PPC_GOT_TLSGD16_HA
,
1034 16, /* rightshift */
1035 1, /* size (0 = byte, 1 = short, 2 = long) */
1037 FALSE
, /* pc_relative */
1039 complain_overflow_dont
, /* complain_on_overflow */
1040 ppc_elf_unhandled_reloc
, /* special_function */
1041 "R_PPC_GOT_TLSGD16_HA", /* name */
1042 FALSE
, /* partial_inplace */
1044 0xffff, /* dst_mask */
1045 FALSE
), /* pcrel_offset */
1047 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1048 with values (sym+add)@dtpmod and zero, and computes the offset to the
1050 HOWTO (R_PPC_GOT_TLSLD16
,
1052 1, /* size (0 = byte, 1 = short, 2 = long) */
1054 FALSE
, /* pc_relative */
1056 complain_overflow_signed
, /* complain_on_overflow */
1057 ppc_elf_unhandled_reloc
, /* special_function */
1058 "R_PPC_GOT_TLSLD16", /* name */
1059 FALSE
, /* partial_inplace */
1061 0xffff, /* dst_mask */
1062 FALSE
), /* pcrel_offset */
1064 /* Like GOT_TLSLD16, but no overflow. */
1065 HOWTO (R_PPC_GOT_TLSLD16_LO
,
1067 1, /* size (0 = byte, 1 = short, 2 = long) */
1069 FALSE
, /* pc_relative */
1071 complain_overflow_dont
, /* complain_on_overflow */
1072 ppc_elf_unhandled_reloc
, /* special_function */
1073 "R_PPC_GOT_TLSLD16_LO", /* name */
1074 FALSE
, /* partial_inplace */
1076 0xffff, /* dst_mask */
1077 FALSE
), /* pcrel_offset */
1079 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1080 HOWTO (R_PPC_GOT_TLSLD16_HI
,
1081 16, /* rightshift */
1082 1, /* size (0 = byte, 1 = short, 2 = long) */
1084 FALSE
, /* pc_relative */
1086 complain_overflow_dont
, /* complain_on_overflow */
1087 ppc_elf_unhandled_reloc
, /* special_function */
1088 "R_PPC_GOT_TLSLD16_HI", /* name */
1089 FALSE
, /* partial_inplace */
1091 0xffff, /* dst_mask */
1092 FALSE
), /* pcrel_offset */
1094 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1095 HOWTO (R_PPC_GOT_TLSLD16_HA
,
1096 16, /* rightshift */
1097 1, /* size (0 = byte, 1 = short, 2 = long) */
1099 FALSE
, /* pc_relative */
1101 complain_overflow_dont
, /* complain_on_overflow */
1102 ppc_elf_unhandled_reloc
, /* special_function */
1103 "R_PPC_GOT_TLSLD16_HA", /* name */
1104 FALSE
, /* partial_inplace */
1106 0xffff, /* dst_mask */
1107 FALSE
), /* pcrel_offset */
1109 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1110 the offset to the entry. */
1111 HOWTO (R_PPC_GOT_DTPREL16
,
1113 1, /* size (0 = byte, 1 = short, 2 = long) */
1115 FALSE
, /* pc_relative */
1117 complain_overflow_signed
, /* complain_on_overflow */
1118 ppc_elf_unhandled_reloc
, /* special_function */
1119 "R_PPC_GOT_DTPREL16", /* name */
1120 FALSE
, /* partial_inplace */
1122 0xffff, /* dst_mask */
1123 FALSE
), /* pcrel_offset */
1125 /* Like GOT_DTPREL16, but no overflow. */
1126 HOWTO (R_PPC_GOT_DTPREL16_LO
,
1128 1, /* size (0 = byte, 1 = short, 2 = long) */
1130 FALSE
, /* pc_relative */
1132 complain_overflow_dont
, /* complain_on_overflow */
1133 ppc_elf_unhandled_reloc
, /* special_function */
1134 "R_PPC_GOT_DTPREL16_LO", /* name */
1135 FALSE
, /* partial_inplace */
1137 0xffff, /* dst_mask */
1138 FALSE
), /* pcrel_offset */
1140 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1141 HOWTO (R_PPC_GOT_DTPREL16_HI
,
1142 16, /* rightshift */
1143 1, /* size (0 = byte, 1 = short, 2 = long) */
1145 FALSE
, /* pc_relative */
1147 complain_overflow_dont
, /* complain_on_overflow */
1148 ppc_elf_unhandled_reloc
, /* special_function */
1149 "R_PPC_GOT_DTPREL16_HI", /* name */
1150 FALSE
, /* partial_inplace */
1152 0xffff, /* dst_mask */
1153 FALSE
), /* pcrel_offset */
1155 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1156 HOWTO (R_PPC_GOT_DTPREL16_HA
,
1157 16, /* rightshift */
1158 1, /* size (0 = byte, 1 = short, 2 = long) */
1160 FALSE
, /* pc_relative */
1162 complain_overflow_dont
, /* complain_on_overflow */
1163 ppc_elf_unhandled_reloc
, /* special_function */
1164 "R_PPC_GOT_DTPREL16_HA", /* name */
1165 FALSE
, /* partial_inplace */
1167 0xffff, /* dst_mask */
1168 FALSE
), /* pcrel_offset */
1170 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1171 offset to the entry. */
1172 HOWTO (R_PPC_GOT_TPREL16
,
1174 1, /* size (0 = byte, 1 = short, 2 = long) */
1176 FALSE
, /* pc_relative */
1178 complain_overflow_signed
, /* complain_on_overflow */
1179 ppc_elf_unhandled_reloc
, /* special_function */
1180 "R_PPC_GOT_TPREL16", /* name */
1181 FALSE
, /* partial_inplace */
1183 0xffff, /* dst_mask */
1184 FALSE
), /* pcrel_offset */
1186 /* Like GOT_TPREL16, but no overflow. */
1187 HOWTO (R_PPC_GOT_TPREL16_LO
,
1189 1, /* size (0 = byte, 1 = short, 2 = long) */
1191 FALSE
, /* pc_relative */
1193 complain_overflow_dont
, /* complain_on_overflow */
1194 ppc_elf_unhandled_reloc
, /* special_function */
1195 "R_PPC_GOT_TPREL16_LO", /* name */
1196 FALSE
, /* partial_inplace */
1198 0xffff, /* dst_mask */
1199 FALSE
), /* pcrel_offset */
1201 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1202 HOWTO (R_PPC_GOT_TPREL16_HI
,
1203 16, /* rightshift */
1204 1, /* size (0 = byte, 1 = short, 2 = long) */
1206 FALSE
, /* pc_relative */
1208 complain_overflow_dont
, /* complain_on_overflow */
1209 ppc_elf_unhandled_reloc
, /* special_function */
1210 "R_PPC_GOT_TPREL16_HI", /* name */
1211 FALSE
, /* partial_inplace */
1213 0xffff, /* dst_mask */
1214 FALSE
), /* pcrel_offset */
1216 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1217 HOWTO (R_PPC_GOT_TPREL16_HA
,
1218 16, /* rightshift */
1219 1, /* size (0 = byte, 1 = short, 2 = long) */
1221 FALSE
, /* pc_relative */
1223 complain_overflow_dont
, /* complain_on_overflow */
1224 ppc_elf_unhandled_reloc
, /* special_function */
1225 "R_PPC_GOT_TPREL16_HA", /* name */
1226 FALSE
, /* partial_inplace */
1228 0xffff, /* dst_mask */
1229 FALSE
), /* pcrel_offset */
1231 /* The remaining relocs are from the Embedded ELF ABI, and are not
1232 in the SVR4 ELF ABI. */
1234 /* 32 bit value resulting from the addend minus the symbol. */
1235 HOWTO (R_PPC_EMB_NADDR32
, /* type */
1237 2, /* size (0 = byte, 1 = short, 2 = long) */
1239 FALSE
, /* pc_relative */
1241 complain_overflow_dont
, /* complain_on_overflow */
1242 ppc_elf_unhandled_reloc
, /* special_function */
1243 "R_PPC_EMB_NADDR32", /* name */
1244 FALSE
, /* partial_inplace */
1246 0xffffffff, /* dst_mask */
1247 FALSE
), /* pcrel_offset */
1249 /* 16 bit value resulting from the addend minus the symbol. */
1250 HOWTO (R_PPC_EMB_NADDR16
, /* type */
1252 1, /* size (0 = byte, 1 = short, 2 = long) */
1254 FALSE
, /* pc_relative */
1256 complain_overflow_signed
, /* complain_on_overflow */
1257 ppc_elf_unhandled_reloc
, /* special_function */
1258 "R_PPC_EMB_NADDR16", /* name */
1259 FALSE
, /* partial_inplace */
1261 0xffff, /* dst_mask */
1262 FALSE
), /* pcrel_offset */
1264 /* 16 bit value resulting from the addend minus the symbol. */
1265 HOWTO (R_PPC_EMB_NADDR16_LO
, /* type */
1267 1, /* size (0 = byte, 1 = short, 2 = long) */
1269 FALSE
, /* pc_relative */
1271 complain_overflow_dont
,/* complain_on_overflow */
1272 ppc_elf_unhandled_reloc
, /* special_function */
1273 "R_PPC_EMB_ADDR16_LO", /* name */
1274 FALSE
, /* partial_inplace */
1276 0xffff, /* dst_mask */
1277 FALSE
), /* pcrel_offset */
1279 /* The high order 16 bits of the addend minus the symbol. */
1280 HOWTO (R_PPC_EMB_NADDR16_HI
, /* type */
1281 16, /* rightshift */
1282 1, /* size (0 = byte, 1 = short, 2 = long) */
1284 FALSE
, /* pc_relative */
1286 complain_overflow_dont
, /* complain_on_overflow */
1287 ppc_elf_unhandled_reloc
, /* special_function */
1288 "R_PPC_EMB_NADDR16_HI", /* name */
1289 FALSE
, /* partial_inplace */
1291 0xffff, /* dst_mask */
1292 FALSE
), /* pcrel_offset */
1294 /* The high order 16 bits of the result of the addend minus the address,
1295 plus 1 if the contents of the low 16 bits, treated as a signed number,
1297 HOWTO (R_PPC_EMB_NADDR16_HA
, /* type */
1298 16, /* rightshift */
1299 1, /* size (0 = byte, 1 = short, 2 = long) */
1301 FALSE
, /* pc_relative */
1303 complain_overflow_dont
, /* complain_on_overflow */
1304 ppc_elf_unhandled_reloc
, /* special_function */
1305 "R_PPC_EMB_NADDR16_HA", /* name */
1306 FALSE
, /* partial_inplace */
1308 0xffff, /* dst_mask */
1309 FALSE
), /* pcrel_offset */
1311 /* 16 bit value resulting from allocating a 4 byte word to hold an
1312 address in the .sdata section, and returning the offset from
1313 _SDA_BASE_ for that relocation. */
1314 HOWTO (R_PPC_EMB_SDAI16
, /* type */
1316 1, /* size (0 = byte, 1 = short, 2 = long) */
1318 FALSE
, /* pc_relative */
1320 complain_overflow_signed
, /* complain_on_overflow */
1321 ppc_elf_unhandled_reloc
, /* special_function */
1322 "R_PPC_EMB_SDAI16", /* name */
1323 FALSE
, /* partial_inplace */
1325 0xffff, /* dst_mask */
1326 FALSE
), /* pcrel_offset */
1328 /* 16 bit value resulting from allocating a 4 byte word to hold an
1329 address in the .sdata2 section, and returning the offset from
1330 _SDA2_BASE_ for that relocation. */
1331 HOWTO (R_PPC_EMB_SDA2I16
, /* type */
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1335 FALSE
, /* pc_relative */
1337 complain_overflow_signed
, /* complain_on_overflow */
1338 ppc_elf_unhandled_reloc
, /* special_function */
1339 "R_PPC_EMB_SDA2I16", /* name */
1340 FALSE
, /* partial_inplace */
1342 0xffff, /* dst_mask */
1343 FALSE
), /* pcrel_offset */
1345 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1346 small data items. */
1347 HOWTO (R_PPC_EMB_SDA2REL
, /* type */
1349 1, /* size (0 = byte, 1 = short, 2 = long) */
1351 FALSE
, /* pc_relative */
1353 complain_overflow_signed
, /* complain_on_overflow */
1354 ppc_elf_unhandled_reloc
, /* special_function */
1355 "R_PPC_EMB_SDA2REL", /* name */
1356 FALSE
, /* partial_inplace */
1358 0xffff, /* dst_mask */
1359 FALSE
), /* pcrel_offset */
1361 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1362 signed offset from the appropriate base, and filling in the register
1363 field with the appropriate register (0, 2, or 13). */
1364 HOWTO (R_PPC_EMB_SDA21
, /* type */
1366 2, /* size (0 = byte, 1 = short, 2 = long) */
1368 FALSE
, /* pc_relative */
1370 complain_overflow_signed
, /* complain_on_overflow */
1371 ppc_elf_unhandled_reloc
, /* special_function */
1372 "R_PPC_EMB_SDA21", /* name */
1373 FALSE
, /* partial_inplace */
1375 0xffff, /* dst_mask */
1376 FALSE
), /* pcrel_offset */
1378 /* Relocation not handled: R_PPC_EMB_MRKREF */
1379 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1380 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1381 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1382 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1383 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1385 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1386 in the 16 bit signed offset from the appropriate base, and filling in the
1387 register field with the appropriate register (0, 2, or 13). */
1388 HOWTO (R_PPC_EMB_RELSDA
, /* type */
1390 1, /* size (0 = byte, 1 = short, 2 = long) */
1392 FALSE
, /* pc_relative */
1394 complain_overflow_signed
, /* complain_on_overflow */
1395 ppc_elf_unhandled_reloc
, /* special_function */
1396 "R_PPC_EMB_RELSDA", /* name */
1397 FALSE
, /* partial_inplace */
1399 0xffff, /* dst_mask */
1400 FALSE
), /* pcrel_offset */
1402 /* A relative 8 bit branch. */
1403 HOWTO (R_PPC_VLE_REL8
, /* type */
1405 1, /* size (0 = byte, 1 = short, 2 = long) */
1407 TRUE
, /* pc_relative */
1409 complain_overflow_signed
, /* complain_on_overflow */
1410 bfd_elf_generic_reloc
, /* special_function */
1411 "R_PPC_VLE_REL8", /* name */
1412 FALSE
, /* partial_inplace */
1414 0xff, /* dst_mask */
1415 TRUE
), /* pcrel_offset */
1417 /* A relative 15 bit branch. */
1418 HOWTO (R_PPC_VLE_REL15
, /* type */
1420 2, /* size (0 = byte, 1 = short, 2 = long) */
1422 TRUE
, /* pc_relative */
1424 complain_overflow_signed
, /* complain_on_overflow */
1425 bfd_elf_generic_reloc
, /* special_function */
1426 "R_PPC_VLE_REL15", /* name */
1427 FALSE
, /* partial_inplace */
1429 0xfffe, /* dst_mask */
1430 TRUE
), /* pcrel_offset */
1432 /* A relative 24 bit branch. */
1433 HOWTO (R_PPC_VLE_REL24
, /* type */
1435 2, /* size (0 = byte, 1 = short, 2 = long) */
1437 TRUE
, /* pc_relative */
1439 complain_overflow_signed
, /* complain_on_overflow */
1440 bfd_elf_generic_reloc
, /* special_function */
1441 "R_PPC_VLE_REL24", /* name */
1442 FALSE
, /* partial_inplace */
1444 0x1fffffe, /* dst_mask */
1445 TRUE
), /* pcrel_offset */
1447 /* The 16 LSBS in split16a format. */
1448 HOWTO (R_PPC_VLE_LO16A
, /* type */
1450 2, /* size (0 = byte, 1 = short, 2 = long) */
1452 FALSE
, /* pc_relative */
1454 complain_overflow_dont
, /* complain_on_overflow */
1455 ppc_elf_unhandled_reloc
, /* special_function */
1456 "R_PPC_VLE_LO16A", /* name */
1457 FALSE
, /* partial_inplace */
1459 0x1f07ff, /* dst_mask */
1460 FALSE
), /* pcrel_offset */
1462 /* The 16 LSBS in split16d format. */
1463 HOWTO (R_PPC_VLE_LO16D
, /* type */
1465 2, /* size (0 = byte, 1 = short, 2 = long) */
1467 FALSE
, /* pc_relative */
1469 complain_overflow_dont
, /* complain_on_overflow */
1470 ppc_elf_unhandled_reloc
, /* special_function */
1471 "R_PPC_VLE_LO16D", /* name */
1472 FALSE
, /* partial_inplace */
1474 0x3e007ff, /* dst_mask */
1475 FALSE
), /* pcrel_offset */
1477 /* Bits 16-31 split16a format. */
1478 HOWTO (R_PPC_VLE_HI16A
, /* type */
1479 16, /* rightshift */
1480 2, /* size (0 = byte, 1 = short, 2 = long) */
1482 FALSE
, /* pc_relative */
1484 complain_overflow_dont
, /* complain_on_overflow */
1485 ppc_elf_unhandled_reloc
, /* special_function */
1486 "R_PPC_VLE_HI16A", /* name */
1487 FALSE
, /* partial_inplace */
1489 0x1f07ff, /* dst_mask */
1490 FALSE
), /* pcrel_offset */
1492 /* Bits 16-31 split16d format. */
1493 HOWTO (R_PPC_VLE_HI16D
, /* type */
1494 16, /* rightshift */
1495 2, /* size (0 = byte, 1 = short, 2 = long) */
1497 FALSE
, /* pc_relative */
1499 complain_overflow_dont
, /* complain_on_overflow */
1500 ppc_elf_unhandled_reloc
, /* special_function */
1501 "R_PPC_VLE_HI16D", /* name */
1502 FALSE
, /* partial_inplace */
1504 0x3e007ff, /* dst_mask */
1505 FALSE
), /* pcrel_offset */
1507 /* Bits 16-31 (High Adjusted) in split16a format. */
1508 HOWTO (R_PPC_VLE_HA16A
, /* type */
1509 16, /* rightshift */
1510 2, /* size (0 = byte, 1 = short, 2 = long) */
1512 FALSE
, /* pc_relative */
1514 complain_overflow_dont
, /* complain_on_overflow */
1515 ppc_elf_unhandled_reloc
, /* special_function */
1516 "R_PPC_VLE_HA16A", /* name */
1517 FALSE
, /* partial_inplace */
1519 0x1f07ff, /* dst_mask */
1520 FALSE
), /* pcrel_offset */
1522 /* Bits 16-31 (High Adjusted) in split16d format. */
1523 HOWTO (R_PPC_VLE_HA16D
, /* type */
1524 16, /* rightshift */
1525 2, /* size (0 = byte, 1 = short, 2 = long) */
1527 FALSE
, /* pc_relative */
1529 complain_overflow_dont
, /* complain_on_overflow */
1530 ppc_elf_unhandled_reloc
, /* special_function */
1531 "R_PPC_VLE_HA16D", /* name */
1532 FALSE
, /* partial_inplace */
1534 0x3e007ff, /* dst_mask */
1535 FALSE
), /* pcrel_offset */
1537 /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
1538 instructions. If the register base is 0 then the linker changes
1539 the e_add16i to an e_li instruction. */
1540 HOWTO (R_PPC_VLE_SDA21
, /* type */
1542 2, /* size (0 = byte, 1 = short, 2 = long) */
1544 FALSE
, /* pc_relative */
1546 complain_overflow_signed
, /* complain_on_overflow */
1547 ppc_elf_unhandled_reloc
, /* special_function */
1548 "R_PPC_VLE_SDA21", /* name */
1549 FALSE
, /* partial_inplace */
1551 0xffff, /* dst_mask */
1552 FALSE
), /* pcrel_offset */
1554 /* Like R_PPC_VLE_SDA21 but ignore overflow. */
1555 HOWTO (R_PPC_VLE_SDA21_LO
, /* type */
1557 2, /* size (0 = byte, 1 = short, 2 = long) */
1559 FALSE
, /* pc_relative */
1561 complain_overflow_dont
, /* complain_on_overflow */
1562 ppc_elf_unhandled_reloc
, /* special_function */
1563 "R_PPC_VLE_SDA21_LO", /* name */
1564 FALSE
, /* partial_inplace */
1566 0xffff, /* dst_mask */
1567 FALSE
), /* pcrel_offset */
1569 /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */
1570 HOWTO (R_PPC_VLE_SDAREL_LO16A
,/* type */
1572 2, /* size (0 = byte, 1 = short, 2 = long) */
1574 FALSE
, /* pc_relative */
1576 complain_overflow_dont
, /* complain_on_overflow */
1577 ppc_elf_unhandled_reloc
, /* special_function */
1578 "R_PPC_VLE_SDAREL_LO16A", /* name */
1579 FALSE
, /* partial_inplace */
1581 0x1f07ff, /* dst_mask */
1582 FALSE
), /* pcrel_offset */
1584 /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */
1585 HOWTO (R_PPC_VLE_SDAREL_LO16D
, /* type */
1587 2, /* size (0 = byte, 1 = short, 2 = long) */
1589 FALSE
, /* pc_relative */
1591 complain_overflow_dont
, /* complain_on_overflow */
1592 ppc_elf_unhandled_reloc
, /* special_function */
1593 "R_PPC_VLE_SDAREL_LO16D", /* name */
1594 FALSE
, /* partial_inplace */
1596 0x3e007ff, /* dst_mask */
1597 FALSE
), /* pcrel_offset */
1599 /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */
1600 HOWTO (R_PPC_VLE_SDAREL_HI16A
, /* type */
1601 16, /* rightshift */
1602 2, /* size (0 = byte, 1 = short, 2 = long) */
1604 FALSE
, /* pc_relative */
1606 complain_overflow_dont
, /* complain_on_overflow */
1607 ppc_elf_unhandled_reloc
, /* special_function */
1608 "R_PPC_VLE_SDAREL_HI16A", /* name */
1609 FALSE
, /* partial_inplace */
1611 0x1f07ff, /* dst_mask */
1612 FALSE
), /* pcrel_offset */
1614 /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */
1615 HOWTO (R_PPC_VLE_SDAREL_HI16D
, /* type */
1616 16, /* rightshift */
1617 2, /* size (0 = byte, 1 = short, 2 = long) */
1619 FALSE
, /* pc_relative */
1621 complain_overflow_dont
, /* complain_on_overflow */
1622 ppc_elf_unhandled_reloc
, /* special_function */
1623 "R_PPC_VLE_SDAREL_HI16D", /* name */
1624 FALSE
, /* partial_inplace */
1626 0x3e007ff, /* dst_mask */
1627 FALSE
), /* pcrel_offset */
1629 /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */
1630 HOWTO (R_PPC_VLE_SDAREL_HA16A
, /* type */
1631 16, /* rightshift */
1632 2, /* size (0 = byte, 1 = short, 2 = long) */
1634 FALSE
, /* pc_relative */
1636 complain_overflow_dont
, /* complain_on_overflow */
1637 ppc_elf_unhandled_reloc
, /* special_function */
1638 "R_PPC_VLE_SDAREL_HA16A", /* name */
1639 FALSE
, /* partial_inplace */
1641 0x1f07ff, /* dst_mask */
1642 FALSE
), /* pcrel_offset */
1644 /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */
1645 HOWTO (R_PPC_VLE_SDAREL_HA16D
, /* type */
1646 16, /* rightshift */
1647 2, /* size (0 = byte, 1 = short, 2 = long) */
1649 FALSE
, /* pc_relative */
1651 complain_overflow_dont
, /* complain_on_overflow */
1652 ppc_elf_unhandled_reloc
, /* special_function */
1653 "R_PPC_VLE_SDAREL_HA16D", /* name */
1654 FALSE
, /* partial_inplace */
1656 0x3e007ff, /* dst_mask */
1657 FALSE
), /* pcrel_offset */
1659 HOWTO (R_PPC_IRELATIVE
, /* type */
1661 2, /* size (0 = byte, 1 = short, 2 = long) */
1663 FALSE
, /* pc_relative */
1665 complain_overflow_dont
, /* complain_on_overflow */
1666 ppc_elf_unhandled_reloc
, /* special_function */
1667 "R_PPC_IRELATIVE", /* name */
1668 FALSE
, /* partial_inplace */
1670 0xffffffff, /* dst_mask */
1671 FALSE
), /* pcrel_offset */
1673 /* A 16 bit relative relocation. */
1674 HOWTO (R_PPC_REL16
, /* type */
1676 1, /* size (0 = byte, 1 = short, 2 = long) */
1678 TRUE
, /* pc_relative */
1680 complain_overflow_signed
, /* complain_on_overflow */
1681 bfd_elf_generic_reloc
, /* special_function */
1682 "R_PPC_REL16", /* name */
1683 FALSE
, /* partial_inplace */
1685 0xffff, /* dst_mask */
1686 TRUE
), /* pcrel_offset */
1688 /* A 16 bit relative relocation without overflow. */
1689 HOWTO (R_PPC_REL16_LO
, /* type */
1691 1, /* size (0 = byte, 1 = short, 2 = long) */
1693 TRUE
, /* pc_relative */
1695 complain_overflow_dont
,/* complain_on_overflow */
1696 bfd_elf_generic_reloc
, /* special_function */
1697 "R_PPC_REL16_LO", /* name */
1698 FALSE
, /* partial_inplace */
1700 0xffff, /* dst_mask */
1701 TRUE
), /* pcrel_offset */
1703 /* The high order 16 bits of a relative address. */
1704 HOWTO (R_PPC_REL16_HI
, /* type */
1705 16, /* rightshift */
1706 1, /* size (0 = byte, 1 = short, 2 = long) */
1708 TRUE
, /* pc_relative */
1710 complain_overflow_dont
, /* complain_on_overflow */
1711 bfd_elf_generic_reloc
, /* special_function */
1712 "R_PPC_REL16_HI", /* name */
1713 FALSE
, /* partial_inplace */
1715 0xffff, /* dst_mask */
1716 TRUE
), /* pcrel_offset */
1718 /* The high order 16 bits of a relative address, plus 1 if the contents of
1719 the low 16 bits, treated as a signed number, is negative. */
1720 HOWTO (R_PPC_REL16_HA
, /* type */
1721 16, /* rightshift */
1722 1, /* size (0 = byte, 1 = short, 2 = long) */
1724 TRUE
, /* pc_relative */
1726 complain_overflow_dont
, /* complain_on_overflow */
1727 ppc_elf_addr16_ha_reloc
, /* special_function */
1728 "R_PPC_REL16_HA", /* name */
1729 FALSE
, /* partial_inplace */
1731 0xffff, /* dst_mask */
1732 TRUE
), /* pcrel_offset */
1734 /* Like R_PPC_REL16_HA but for split field in addpcis. */
1735 HOWTO (R_PPC_REL16DX_HA
, /* type */
1736 16, /* rightshift */
1737 2, /* size (0 = byte, 1 = short, 2 = long) */
1739 TRUE
, /* pc_relative */
1741 complain_overflow_signed
, /* complain_on_overflow */
1742 ppc_elf_addr16_ha_reloc
, /* special_function */
1743 "R_PPC_REL16DX_HA", /* name */
1744 FALSE
, /* partial_inplace */
1746 0x1fffc1, /* dst_mask */
1747 TRUE
), /* pcrel_offset */
1749 /* A split-field reloc for addpcis, non-relative (gas internal use only). */
1750 HOWTO (R_PPC_16DX_HA
, /* type */
1751 16, /* rightshift */
1752 2, /* size (0 = byte, 1 = short, 2 = long) */
1754 FALSE
, /* pc_relative */
1756 complain_overflow_signed
, /* complain_on_overflow */
1757 ppc_elf_addr16_ha_reloc
, /* special_function */
1758 "R_PPC_16DX_HA", /* name */
1759 FALSE
, /* partial_inplace */
1761 0x1fffc1, /* dst_mask */
1762 FALSE
), /* pcrel_offset */
1764 /* GNU extension to record C++ vtable hierarchy. */
1765 HOWTO (R_PPC_GNU_VTINHERIT
, /* type */
1767 0, /* size (0 = byte, 1 = short, 2 = long) */
1769 FALSE
, /* pc_relative */
1771 complain_overflow_dont
, /* complain_on_overflow */
1772 NULL
, /* special_function */
1773 "R_PPC_GNU_VTINHERIT", /* name */
1774 FALSE
, /* partial_inplace */
1777 FALSE
), /* pcrel_offset */
1779 /* GNU extension to record C++ vtable member usage. */
1780 HOWTO (R_PPC_GNU_VTENTRY
, /* type */
1782 0, /* size (0 = byte, 1 = short, 2 = long) */
1784 FALSE
, /* pc_relative */
1786 complain_overflow_dont
, /* complain_on_overflow */
1787 NULL
, /* special_function */
1788 "R_PPC_GNU_VTENTRY", /* name */
1789 FALSE
, /* partial_inplace */
1792 FALSE
), /* pcrel_offset */
1794 /* Phony reloc to handle AIX style TOC entries. */
1795 HOWTO (R_PPC_TOC16
, /* type */
1797 1, /* size (0 = byte, 1 = short, 2 = long) */
1799 FALSE
, /* pc_relative */
1801 complain_overflow_signed
, /* complain_on_overflow */
1802 ppc_elf_unhandled_reloc
, /* special_function */
1803 "R_PPC_TOC16", /* name */
1804 FALSE
, /* partial_inplace */
1806 0xffff, /* dst_mask */
1807 FALSE
), /* pcrel_offset */
1810 /* External 32-bit PPC structure for PRPSINFO. This structure is
1811 ABI-defined, thus we choose to use char arrays here in order to
1812 avoid dealing with different types in different architectures.
1814 The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
1815 most non-PPC architectures use `short int'.
1817 This structure will ultimately be written in the corefile's note
1818 section, as the PRPSINFO. */
1820 struct elf_external_ppc_linux_prpsinfo32
1822 char pr_state
; /* Numeric process state. */
1823 char pr_sname
; /* Char for pr_state. */
1824 char pr_zomb
; /* Zombie. */
1825 char pr_nice
; /* Nice val. */
1826 char pr_flag
[4]; /* Flags. */
1833 char pr_fname
[16]; /* Filename of executable. */
1834 char pr_psargs
[80]; /* Initial part of arg list. */
1837 /* Helper function to copy an elf_internal_linux_prpsinfo in host
1838 endian to an elf_external_ppc_linux_prpsinfo32 in target endian. */
1841 swap_ppc_linux_prpsinfo32_out (bfd
*obfd
,
1842 const struct elf_internal_linux_prpsinfo
*from
,
1843 struct elf_external_ppc_linux_prpsinfo32
*to
)
1845 bfd_put_8 (obfd
, from
->pr_state
, &to
->pr_state
);
1846 bfd_put_8 (obfd
, from
->pr_sname
, &to
->pr_sname
);
1847 bfd_put_8 (obfd
, from
->pr_zomb
, &to
->pr_zomb
);
1848 bfd_put_8 (obfd
, from
->pr_nice
, &to
->pr_nice
);
1849 bfd_put_32 (obfd
, from
->pr_flag
, to
->pr_flag
);
1850 bfd_put_32 (obfd
, from
->pr_uid
, to
->pr_uid
);
1851 bfd_put_32 (obfd
, from
->pr_gid
, to
->pr_gid
);
1852 bfd_put_32 (obfd
, from
->pr_pid
, to
->pr_pid
);
1853 bfd_put_32 (obfd
, from
->pr_ppid
, to
->pr_ppid
);
1854 bfd_put_32 (obfd
, from
->pr_pgrp
, to
->pr_pgrp
);
1855 bfd_put_32 (obfd
, from
->pr_sid
, to
->pr_sid
);
1856 strncpy (to
->pr_fname
, from
->pr_fname
, sizeof (to
->pr_fname
));
1857 strncpy (to
->pr_psargs
, from
->pr_psargs
, sizeof (to
->pr_psargs
));
1860 /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1863 ppc_elf_howto_init (void)
1865 unsigned int i
, type
;
1868 i
< sizeof (ppc_elf_howto_raw
) / sizeof (ppc_elf_howto_raw
[0]);
1871 type
= ppc_elf_howto_raw
[i
].type
;
1872 if (type
>= (sizeof (ppc_elf_howto_table
)
1873 / sizeof (ppc_elf_howto_table
[0])))
1875 ppc_elf_howto_table
[type
] = &ppc_elf_howto_raw
[i
];
1879 static reloc_howto_type
*
1880 ppc_elf_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
1881 bfd_reloc_code_real_type code
)
1883 enum elf_ppc_reloc_type r
;
1885 /* Initialize howto table if not already done. */
1886 if (!ppc_elf_howto_table
[R_PPC_ADDR32
])
1887 ppc_elf_howto_init ();
1894 case BFD_RELOC_NONE
: r
= R_PPC_NONE
; break;
1895 case BFD_RELOC_32
: r
= R_PPC_ADDR32
; break;
1896 case BFD_RELOC_PPC_BA26
: r
= R_PPC_ADDR24
; break;
1897 case BFD_RELOC_PPC64_ADDR16_DS
:
1898 case BFD_RELOC_16
: r
= R_PPC_ADDR16
; break;
1899 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
1900 case BFD_RELOC_LO16
: r
= R_PPC_ADDR16_LO
; break;
1901 case BFD_RELOC_HI16
: r
= R_PPC_ADDR16_HI
; break;
1902 case BFD_RELOC_HI16_S
: r
= R_PPC_ADDR16_HA
; break;
1903 case BFD_RELOC_PPC_BA16
: r
= R_PPC_ADDR14
; break;
1904 case BFD_RELOC_PPC_BA16_BRTAKEN
: r
= R_PPC_ADDR14_BRTAKEN
; break;
1905 case BFD_RELOC_PPC_BA16_BRNTAKEN
: r
= R_PPC_ADDR14_BRNTAKEN
; break;
1906 case BFD_RELOC_PPC_B26
: r
= R_PPC_REL24
; break;
1907 case BFD_RELOC_PPC_B16
: r
= R_PPC_REL14
; break;
1908 case BFD_RELOC_PPC_B16_BRTAKEN
: r
= R_PPC_REL14_BRTAKEN
; break;
1909 case BFD_RELOC_PPC_B16_BRNTAKEN
: r
= R_PPC_REL14_BRNTAKEN
; break;
1910 case BFD_RELOC_PPC64_GOT16_DS
:
1911 case BFD_RELOC_16_GOTOFF
: r
= R_PPC_GOT16
; break;
1912 case BFD_RELOC_PPC64_GOT16_LO_DS
:
1913 case BFD_RELOC_LO16_GOTOFF
: r
= R_PPC_GOT16_LO
; break;
1914 case BFD_RELOC_HI16_GOTOFF
: r
= R_PPC_GOT16_HI
; break;
1915 case BFD_RELOC_HI16_S_GOTOFF
: r
= R_PPC_GOT16_HA
; break;
1916 case BFD_RELOC_24_PLT_PCREL
: r
= R_PPC_PLTREL24
; break;
1917 case BFD_RELOC_PPC_COPY
: r
= R_PPC_COPY
; break;
1918 case BFD_RELOC_PPC_GLOB_DAT
: r
= R_PPC_GLOB_DAT
; break;
1919 case BFD_RELOC_PPC_LOCAL24PC
: r
= R_PPC_LOCAL24PC
; break;
1920 case BFD_RELOC_32_PCREL
: r
= R_PPC_REL32
; break;
1921 case BFD_RELOC_32_PLTOFF
: r
= R_PPC_PLT32
; break;
1922 case BFD_RELOC_32_PLT_PCREL
: r
= R_PPC_PLTREL32
; break;
1923 case BFD_RELOC_PPC64_PLT16_LO_DS
:
1924 case BFD_RELOC_LO16_PLTOFF
: r
= R_PPC_PLT16_LO
; break;
1925 case BFD_RELOC_HI16_PLTOFF
: r
= R_PPC_PLT16_HI
; break;
1926 case BFD_RELOC_HI16_S_PLTOFF
: r
= R_PPC_PLT16_HA
; break;
1927 case BFD_RELOC_GPREL16
: r
= R_PPC_SDAREL16
; break;
1928 case BFD_RELOC_PPC64_SECTOFF_DS
:
1929 case BFD_RELOC_16_BASEREL
: r
= R_PPC_SECTOFF
; break;
1930 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
1931 case BFD_RELOC_LO16_BASEREL
: r
= R_PPC_SECTOFF_LO
; break;
1932 case BFD_RELOC_HI16_BASEREL
: r
= R_PPC_SECTOFF_HI
; break;
1933 case BFD_RELOC_HI16_S_BASEREL
: r
= R_PPC_SECTOFF_HA
; break;
1934 case BFD_RELOC_CTOR
: r
= R_PPC_ADDR32
; break;
1935 case BFD_RELOC_PPC64_TOC16_DS
:
1936 case BFD_RELOC_PPC_TOC16
: r
= R_PPC_TOC16
; break;
1937 case BFD_RELOC_PPC_TLS
: r
= R_PPC_TLS
; break;
1938 case BFD_RELOC_PPC_TLSGD
: r
= R_PPC_TLSGD
; break;
1939 case BFD_RELOC_PPC_TLSLD
: r
= R_PPC_TLSLD
; break;
1940 case BFD_RELOC_PPC_DTPMOD
: r
= R_PPC_DTPMOD32
; break;
1941 case BFD_RELOC_PPC64_TPREL16_DS
:
1942 case BFD_RELOC_PPC_TPREL16
: r
= R_PPC_TPREL16
; break;
1943 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
1944 case BFD_RELOC_PPC_TPREL16_LO
: r
= R_PPC_TPREL16_LO
; break;
1945 case BFD_RELOC_PPC_TPREL16_HI
: r
= R_PPC_TPREL16_HI
; break;
1946 case BFD_RELOC_PPC_TPREL16_HA
: r
= R_PPC_TPREL16_HA
; break;
1947 case BFD_RELOC_PPC_TPREL
: r
= R_PPC_TPREL32
; break;
1948 case BFD_RELOC_PPC64_DTPREL16_DS
:
1949 case BFD_RELOC_PPC_DTPREL16
: r
= R_PPC_DTPREL16
; break;
1950 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
1951 case BFD_RELOC_PPC_DTPREL16_LO
: r
= R_PPC_DTPREL16_LO
; break;
1952 case BFD_RELOC_PPC_DTPREL16_HI
: r
= R_PPC_DTPREL16_HI
; break;
1953 case BFD_RELOC_PPC_DTPREL16_HA
: r
= R_PPC_DTPREL16_HA
; break;
1954 case BFD_RELOC_PPC_DTPREL
: r
= R_PPC_DTPREL32
; break;
1955 case BFD_RELOC_PPC_GOT_TLSGD16
: r
= R_PPC_GOT_TLSGD16
; break;
1956 case BFD_RELOC_PPC_GOT_TLSGD16_LO
: r
= R_PPC_GOT_TLSGD16_LO
; break;
1957 case BFD_RELOC_PPC_GOT_TLSGD16_HI
: r
= R_PPC_GOT_TLSGD16_HI
; break;
1958 case BFD_RELOC_PPC_GOT_TLSGD16_HA
: r
= R_PPC_GOT_TLSGD16_HA
; break;
1959 case BFD_RELOC_PPC_GOT_TLSLD16
: r
= R_PPC_GOT_TLSLD16
; break;
1960 case BFD_RELOC_PPC_GOT_TLSLD16_LO
: r
= R_PPC_GOT_TLSLD16_LO
; break;
1961 case BFD_RELOC_PPC_GOT_TLSLD16_HI
: r
= R_PPC_GOT_TLSLD16_HI
; break;
1962 case BFD_RELOC_PPC_GOT_TLSLD16_HA
: r
= R_PPC_GOT_TLSLD16_HA
; break;
1963 case BFD_RELOC_PPC_GOT_TPREL16
: r
= R_PPC_GOT_TPREL16
; break;
1964 case BFD_RELOC_PPC_GOT_TPREL16_LO
: r
= R_PPC_GOT_TPREL16_LO
; break;
1965 case BFD_RELOC_PPC_GOT_TPREL16_HI
: r
= R_PPC_GOT_TPREL16_HI
; break;
1966 case BFD_RELOC_PPC_GOT_TPREL16_HA
: r
= R_PPC_GOT_TPREL16_HA
; break;
1967 case BFD_RELOC_PPC_GOT_DTPREL16
: r
= R_PPC_GOT_DTPREL16
; break;
1968 case BFD_RELOC_PPC_GOT_DTPREL16_LO
: r
= R_PPC_GOT_DTPREL16_LO
; break;
1969 case BFD_RELOC_PPC_GOT_DTPREL16_HI
: r
= R_PPC_GOT_DTPREL16_HI
; break;
1970 case BFD_RELOC_PPC_GOT_DTPREL16_HA
: r
= R_PPC_GOT_DTPREL16_HA
; break;
1971 case BFD_RELOC_PPC_EMB_NADDR32
: r
= R_PPC_EMB_NADDR32
; break;
1972 case BFD_RELOC_PPC_EMB_NADDR16
: r
= R_PPC_EMB_NADDR16
; break;
1973 case BFD_RELOC_PPC_EMB_NADDR16_LO
: r
= R_PPC_EMB_NADDR16_LO
; break;
1974 case BFD_RELOC_PPC_EMB_NADDR16_HI
: r
= R_PPC_EMB_NADDR16_HI
; break;
1975 case BFD_RELOC_PPC_EMB_NADDR16_HA
: r
= R_PPC_EMB_NADDR16_HA
; break;
1976 case BFD_RELOC_PPC_EMB_SDAI16
: r
= R_PPC_EMB_SDAI16
; break;
1977 case BFD_RELOC_PPC_EMB_SDA2I16
: r
= R_PPC_EMB_SDA2I16
; break;
1978 case BFD_RELOC_PPC_EMB_SDA2REL
: r
= R_PPC_EMB_SDA2REL
; break;
1979 case BFD_RELOC_PPC_EMB_SDA21
: r
= R_PPC_EMB_SDA21
; break;
1980 case BFD_RELOC_PPC_EMB_MRKREF
: r
= R_PPC_EMB_MRKREF
; break;
1981 case BFD_RELOC_PPC_EMB_RELSEC16
: r
= R_PPC_EMB_RELSEC16
; break;
1982 case BFD_RELOC_PPC_EMB_RELST_LO
: r
= R_PPC_EMB_RELST_LO
; break;
1983 case BFD_RELOC_PPC_EMB_RELST_HI
: r
= R_PPC_EMB_RELST_HI
; break;
1984 case BFD_RELOC_PPC_EMB_RELST_HA
: r
= R_PPC_EMB_RELST_HA
; break;
1985 case BFD_RELOC_PPC_EMB_BIT_FLD
: r
= R_PPC_EMB_BIT_FLD
; break;
1986 case BFD_RELOC_PPC_EMB_RELSDA
: r
= R_PPC_EMB_RELSDA
; break;
1987 case BFD_RELOC_PPC_VLE_REL8
: r
= R_PPC_VLE_REL8
; break;
1988 case BFD_RELOC_PPC_VLE_REL15
: r
= R_PPC_VLE_REL15
; break;
1989 case BFD_RELOC_PPC_VLE_REL24
: r
= R_PPC_VLE_REL24
; break;
1990 case BFD_RELOC_PPC_VLE_LO16A
: r
= R_PPC_VLE_LO16A
; break;
1991 case BFD_RELOC_PPC_VLE_LO16D
: r
= R_PPC_VLE_LO16D
; break;
1992 case BFD_RELOC_PPC_VLE_HI16A
: r
= R_PPC_VLE_HI16A
; break;
1993 case BFD_RELOC_PPC_VLE_HI16D
: r
= R_PPC_VLE_HI16D
; break;
1994 case BFD_RELOC_PPC_VLE_HA16A
: r
= R_PPC_VLE_HA16A
; break;
1995 case BFD_RELOC_PPC_VLE_HA16D
: r
= R_PPC_VLE_HA16D
; break;
1996 case BFD_RELOC_PPC_VLE_SDA21
: r
= R_PPC_VLE_SDA21
; break;
1997 case BFD_RELOC_PPC_VLE_SDA21_LO
: r
= R_PPC_VLE_SDA21_LO
; break;
1998 case BFD_RELOC_PPC_VLE_SDAREL_LO16A
:
1999 r
= R_PPC_VLE_SDAREL_LO16A
;
2001 case BFD_RELOC_PPC_VLE_SDAREL_LO16D
:
2002 r
= R_PPC_VLE_SDAREL_LO16D
;
2004 case BFD_RELOC_PPC_VLE_SDAREL_HI16A
:
2005 r
= R_PPC_VLE_SDAREL_HI16A
;
2007 case BFD_RELOC_PPC_VLE_SDAREL_HI16D
:
2008 r
= R_PPC_VLE_SDAREL_HI16D
;
2010 case BFD_RELOC_PPC_VLE_SDAREL_HA16A
:
2011 r
= R_PPC_VLE_SDAREL_HA16A
;
2013 case BFD_RELOC_PPC_VLE_SDAREL_HA16D
:
2014 r
= R_PPC_VLE_SDAREL_HA16D
;
2016 case BFD_RELOC_16_PCREL
: r
= R_PPC_REL16
; break;
2017 case BFD_RELOC_LO16_PCREL
: r
= R_PPC_REL16_LO
; break;
2018 case BFD_RELOC_HI16_PCREL
: r
= R_PPC_REL16_HI
; break;
2019 case BFD_RELOC_HI16_S_PCREL
: r
= R_PPC_REL16_HA
; break;
2020 case BFD_RELOC_PPC_16DX_HA
: r
= R_PPC_16DX_HA
; break;
2021 case BFD_RELOC_PPC_REL16DX_HA
: r
= R_PPC_REL16DX_HA
; break;
2022 case BFD_RELOC_VTABLE_INHERIT
: r
= R_PPC_GNU_VTINHERIT
; break;
2023 case BFD_RELOC_VTABLE_ENTRY
: r
= R_PPC_GNU_VTENTRY
; break;
2026 return ppc_elf_howto_table
[r
];
2029 static reloc_howto_type
*
2030 ppc_elf_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
2036 i
< sizeof (ppc_elf_howto_raw
) / sizeof (ppc_elf_howto_raw
[0]);
2038 if (ppc_elf_howto_raw
[i
].name
!= NULL
2039 && strcasecmp (ppc_elf_howto_raw
[i
].name
, r_name
) == 0)
2040 return &ppc_elf_howto_raw
[i
];
2045 /* Set the howto pointer for a PowerPC ELF reloc. */
2048 ppc_elf_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
2050 Elf_Internal_Rela
*dst
)
2052 unsigned int r_type
;
2054 /* Initialize howto table if not already done. */
2055 if (!ppc_elf_howto_table
[R_PPC_ADDR32
])
2056 ppc_elf_howto_init ();
2058 r_type
= ELF32_R_TYPE (dst
->r_info
);
2059 if (r_type
>= R_PPC_max
)
2061 /* xgettext:c-format */
2062 _bfd_error_handler (_("%B: unrecognised PPC reloc number: %d"),
2064 bfd_set_error (bfd_error_bad_value
);
2065 r_type
= R_PPC_NONE
;
2067 cache_ptr
->howto
= ppc_elf_howto_table
[r_type
];
2069 /* Just because the above assert didn't trigger doesn't mean that
2070 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
2071 if (!cache_ptr
->howto
)
2073 /* xgettext:c-format */
2074 _bfd_error_handler (_("%B: invalid relocation type %d"),
2076 bfd_set_error (bfd_error_bad_value
);
2078 cache_ptr
->howto
= ppc_elf_howto_table
[R_PPC_NONE
];
2082 /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
2084 static bfd_reloc_status_type
2085 ppc_elf_addr16_ha_reloc (bfd
*abfd ATTRIBUTE_UNUSED
,
2086 arelent
*reloc_entry
,
2088 void *data ATTRIBUTE_UNUSED
,
2089 asection
*input_section
,
2091 char **error_message ATTRIBUTE_UNUSED
)
2093 enum elf_ppc_reloc_type r_type
;
2095 bfd_size_type octets
;
2098 if (output_bfd
!= NULL
)
2100 reloc_entry
->address
+= input_section
->output_offset
;
2101 return bfd_reloc_ok
;
2104 reloc_entry
->addend
+= 0x8000;
2105 r_type
= reloc_entry
->howto
->type
;
2106 if (r_type
!= R_PPC_REL16DX_HA
)
2107 return bfd_reloc_continue
;
2110 if (!bfd_is_com_section (symbol
->section
))
2111 value
= symbol
->value
;
2112 value
+= (reloc_entry
->addend
2113 + symbol
->section
->output_offset
2114 + symbol
->section
->output_section
->vma
);
2115 value
-= (reloc_entry
->address
2116 + input_section
->output_offset
2117 + input_section
->output_section
->vma
);
2120 octets
= reloc_entry
->address
* bfd_octets_per_byte (abfd
);
2121 insn
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ octets
);
2123 insn
|= (value
& 0xffc1) | ((value
& 0x3e) << 15);
2124 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ octets
);
2125 return bfd_reloc_ok
;
2128 static bfd_reloc_status_type
2129 ppc_elf_unhandled_reloc (bfd
*abfd
,
2130 arelent
*reloc_entry
,
2133 asection
*input_section
,
2135 char **error_message
)
2137 /* If this is a relocatable link (output_bfd test tells us), just
2138 call the generic function. Any adjustment will be done at final
2140 if (output_bfd
!= NULL
)
2141 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2142 input_section
, output_bfd
, error_message
);
2144 if (error_message
!= NULL
)
2146 static char buf
[60];
2147 sprintf (buf
, _("generic linker can't handle %s"),
2148 reloc_entry
->howto
->name
);
2149 *error_message
= buf
;
2151 return bfd_reloc_dangerous
;
2154 /* Sections created by the linker. */
2156 typedef struct elf_linker_section
2158 /* Pointer to the bfd section. */
2162 /* Associated bss section name. */
2163 const char *bss_name
;
2164 /* Associated symbol name. */
2165 const char *sym_name
;
2166 /* Associated symbol. */
2167 struct elf_link_hash_entry
*sym
;
2168 } elf_linker_section_t
;
2170 /* Linked list of allocated pointer entries. This hangs off of the
2171 symbol lists, and provides allows us to return different pointers,
2172 based on different addend's. */
2174 typedef struct elf_linker_section_pointers
2176 /* next allocated pointer for this symbol */
2177 struct elf_linker_section_pointers
*next
;
2178 /* offset of pointer from beginning of section */
2182 /* which linker section this is */
2183 elf_linker_section_t
*lsect
;
2184 } elf_linker_section_pointers_t
;
2186 struct ppc_elf_obj_tdata
2188 struct elf_obj_tdata elf
;
2190 /* A mapping from local symbols to offsets into the various linker
2191 sections added. This is index by the symbol index. */
2192 elf_linker_section_pointers_t
**linker_section_pointers
;
2194 /* Flags used to auto-detect plt type. */
2195 unsigned int makes_plt_call
: 1;
2196 unsigned int has_rel16
: 1;
2199 #define ppc_elf_tdata(bfd) \
2200 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
2202 #define elf_local_ptr_offsets(bfd) \
2203 (ppc_elf_tdata (bfd)->linker_section_pointers)
2205 #define is_ppc_elf(bfd) \
2206 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2207 && elf_object_id (bfd) == PPC32_ELF_DATA)
2209 /* Override the generic function because we store some extras. */
2212 ppc_elf_mkobject (bfd
*abfd
)
2214 return bfd_elf_allocate_object (abfd
, sizeof (struct ppc_elf_obj_tdata
),
2218 /* When defaulting arch/mach, decode apuinfo to find a better match. */
2221 _bfd_elf_ppc_set_arch (bfd
*abfd
)
2223 unsigned long mach
= 0;
2225 unsigned char *contents
;
2227 if (abfd
->arch_info
->bits_per_word
== 32
2228 && bfd_big_endian (abfd
))
2231 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
2232 if ((elf_section_data (s
)->this_hdr
.sh_flags
& SHF_PPC_VLE
) != 0)
2235 mach
= bfd_mach_ppc_vle
;
2240 s
= bfd_get_section_by_name (abfd
, APUINFO_SECTION_NAME
);
2241 if (s
!= NULL
&& bfd_malloc_and_get_section (abfd
, s
, &contents
))
2243 unsigned int apuinfo_size
= bfd_get_32 (abfd
, contents
+ 4);
2246 for (i
= 20; i
< apuinfo_size
+ 20 && i
+ 4 <= s
->size
; i
+= 4)
2248 unsigned int val
= bfd_get_32 (abfd
, contents
+ i
);
2251 case PPC_APUINFO_PMR
:
2252 case PPC_APUINFO_RFMCI
:
2254 mach
= bfd_mach_ppc_titan
;
2257 case PPC_APUINFO_ISEL
:
2258 case PPC_APUINFO_CACHELCK
:
2259 if (mach
== bfd_mach_ppc_titan
)
2260 mach
= bfd_mach_ppc_e500mc
;
2263 case PPC_APUINFO_SPE
:
2264 case PPC_APUINFO_EFS
:
2265 case PPC_APUINFO_BRLOCK
:
2266 if (mach
!= bfd_mach_ppc_vle
)
2267 mach
= bfd_mach_ppc_e500
;
2270 case PPC_APUINFO_VLE
:
2271 mach
= bfd_mach_ppc_vle
;
2282 if (mach
!= 0 && mach
!= -1ul)
2284 const bfd_arch_info_type
*arch
;
2286 for (arch
= abfd
->arch_info
->next
; arch
; arch
= arch
->next
)
2287 if (arch
->mach
== mach
)
2289 abfd
->arch_info
= arch
;
2296 /* Fix bad default arch selected for a 32 bit input bfd when the
2297 default is 64 bit. Also select arch based on apuinfo. */
2300 ppc_elf_object_p (bfd
*abfd
)
2302 if (!abfd
->arch_info
->the_default
)
2305 if (abfd
->arch_info
->bits_per_word
== 64)
2307 Elf_Internal_Ehdr
*i_ehdr
= elf_elfheader (abfd
);
2309 if (i_ehdr
->e_ident
[EI_CLASS
] == ELFCLASS32
)
2311 /* Relies on arch after 64 bit default being 32 bit default. */
2312 abfd
->arch_info
= abfd
->arch_info
->next
;
2313 BFD_ASSERT (abfd
->arch_info
->bits_per_word
== 32);
2316 return _bfd_elf_ppc_set_arch (abfd
);
2319 /* Function to set whether a module needs the -mrelocatable bit set. */
2322 ppc_elf_set_private_flags (bfd
*abfd
, flagword flags
)
2324 BFD_ASSERT (!elf_flags_init (abfd
)
2325 || elf_elfheader (abfd
)->e_flags
== flags
);
2327 elf_elfheader (abfd
)->e_flags
= flags
;
2328 elf_flags_init (abfd
) = TRUE
;
2332 /* Support for core dump NOTE sections. */
2335 ppc_elf_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
2340 switch (note
->descsz
)
2345 case 268: /* Linux/PPC. */
2347 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
2350 elf_tdata (abfd
)->core
->lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
2359 /* Make a ".reg/999" section. */
2360 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
2361 size
, note
->descpos
+ offset
);
2365 ppc_elf_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
2367 switch (note
->descsz
)
2372 case 128: /* Linux/PPC elf_prpsinfo. */
2373 elf_tdata (abfd
)->core
->pid
2374 = bfd_get_32 (abfd
, note
->descdata
+ 16);
2375 elf_tdata (abfd
)->core
->program
2376 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 32, 16);
2377 elf_tdata (abfd
)->core
->command
2378 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 48, 80);
2381 /* Note that for some reason, a spurious space is tacked
2382 onto the end of the args in some (at least one anyway)
2383 implementations, so strip it off if it exists. */
2386 char *command
= elf_tdata (abfd
)->core
->command
;
2387 int n
= strlen (command
);
2389 if (0 < n
&& command
[n
- 1] == ' ')
2390 command
[n
- 1] = '\0';
2397 elfcore_write_ppc_linux_prpsinfo32
2401 const struct elf_internal_linux_prpsinfo
*prpsinfo
)
2403 struct elf_external_ppc_linux_prpsinfo32 data
;
2405 swap_ppc_linux_prpsinfo32_out (abfd
, prpsinfo
, &data
);
2406 return elfcore_write_note (abfd
, buf
, bufsiz
,
2407 "CORE", NT_PRPSINFO
, &data
, sizeof (data
));
2411 ppc_elf_write_core_note (bfd
*abfd
, char *buf
, int *bufsiz
, int note_type
, ...)
2423 va_start (ap
, note_type
);
2424 memset (data
, 0, sizeof (data
));
2425 strncpy (data
+ 32, va_arg (ap
, const char *), 16);
2426 strncpy (data
+ 48, va_arg (ap
, const char *), 80);
2428 return elfcore_write_note (abfd
, buf
, bufsiz
,
2429 "CORE", note_type
, data
, sizeof (data
));
2440 va_start (ap
, note_type
);
2441 memset (data
, 0, 72);
2442 pid
= va_arg (ap
, long);
2443 bfd_put_32 (abfd
, pid
, data
+ 24);
2444 cursig
= va_arg (ap
, int);
2445 bfd_put_16 (abfd
, cursig
, data
+ 12);
2446 greg
= va_arg (ap
, const void *);
2447 memcpy (data
+ 72, greg
, 192);
2448 memset (data
+ 264, 0, 4);
2450 return elfcore_write_note (abfd
, buf
, bufsiz
,
2451 "CORE", note_type
, data
, sizeof (data
));
2457 ppc_elf_lookup_section_flags (char *flag_name
)
2460 if (!strcmp (flag_name
, "SHF_PPC_VLE"))
2466 /* Return address for Ith PLT stub in section PLT, for relocation REL
2467 or (bfd_vma) -1 if it should not be included. */
2470 ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED
,
2471 const asection
*plt ATTRIBUTE_UNUSED
,
2474 return rel
->address
;
2477 /* Handle a PowerPC specific section when reading an object file. This
2478 is called when bfd_section_from_shdr finds a section with an unknown
2482 ppc_elf_section_from_shdr (bfd
*abfd
,
2483 Elf_Internal_Shdr
*hdr
,
2490 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
, shindex
))
2493 newsect
= hdr
->bfd_section
;
2494 flags
= bfd_get_section_flags (abfd
, newsect
);
2495 if (hdr
->sh_flags
& SHF_EXCLUDE
)
2496 flags
|= SEC_EXCLUDE
;
2498 if (hdr
->sh_type
== SHT_ORDERED
)
2499 flags
|= SEC_SORT_ENTRIES
;
2501 bfd_set_section_flags (abfd
, newsect
, flags
);
2505 /* Set up any other section flags and such that may be necessary. */
2508 ppc_elf_fake_sections (bfd
*abfd ATTRIBUTE_UNUSED
,
2509 Elf_Internal_Shdr
*shdr
,
2512 if ((asect
->flags
& SEC_SORT_ENTRIES
) != 0)
2513 shdr
->sh_type
= SHT_ORDERED
;
2518 /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2519 need to bump up the number of section headers. */
2522 ppc_elf_additional_program_headers (bfd
*abfd
,
2523 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
2528 s
= bfd_get_section_by_name (abfd
, ".sbss2");
2529 if (s
!= NULL
&& (s
->flags
& SEC_ALLOC
) != 0)
2532 s
= bfd_get_section_by_name (abfd
, ".PPC.EMB.sbss0");
2533 if (s
!= NULL
&& (s
->flags
& SEC_ALLOC
) != 0)
2539 /* Modify the segment map for VLE executables. */
2542 ppc_elf_modify_segment_map (bfd
*abfd
,
2543 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
2545 struct elf_segment_map
*m
;
2547 /* At this point in the link, output sections have already been sorted by
2548 LMA and assigned to segments. All that is left to do is to ensure
2549 there is no mixing of VLE & non-VLE sections in a text segment.
2550 If we find that case, we split the segment.
2551 We maintain the original output section order. */
2553 for (m
= elf_seg_map (abfd
); m
!= NULL
; m
= m
->next
)
2555 struct elf_segment_map
*n
;
2558 unsigned int p_flags
;
2560 if (m
->p_type
!= PT_LOAD
|| m
->count
== 0)
2563 for (p_flags
= PF_R
, j
= 0; j
!= m
->count
; ++j
)
2565 if ((m
->sections
[j
]->flags
& SEC_READONLY
) == 0)
2567 if ((m
->sections
[j
]->flags
& SEC_CODE
) != 0)
2570 if ((elf_section_flags (m
->sections
[j
]) & SHF_PPC_VLE
) != 0)
2571 p_flags
|= PF_PPC_VLE
;
2576 while (++j
!= m
->count
)
2578 unsigned int p_flags1
= PF_R
;
2580 if ((m
->sections
[j
]->flags
& SEC_READONLY
) == 0)
2582 if ((m
->sections
[j
]->flags
& SEC_CODE
) != 0)
2585 if ((elf_section_flags (m
->sections
[j
]) & SHF_PPC_VLE
) != 0)
2586 p_flags1
|= PF_PPC_VLE
;
2587 if (((p_flags1
^ p_flags
) & PF_PPC_VLE
) != 0)
2590 p_flags
|= p_flags1
;
2592 /* If we're splitting a segment which originally contained rw
2593 sections then those sections might now only be in one of the
2594 two parts. So always set p_flags if splitting, even if we
2595 are being called for objcopy with p_flags_valid set. */
2596 if (j
!= m
->count
|| !m
->p_flags_valid
)
2598 m
->p_flags_valid
= 1;
2599 m
->p_flags
= p_flags
;
2604 /* Sections 0..j-1 stay in this (current) segment,
2605 the remainder are put in a new segment.
2606 The scan resumes with the new segment. */
2608 amt
= sizeof (struct elf_segment_map
);
2609 amt
+= (m
->count
- j
- 1) * sizeof (asection
*);
2610 n
= (struct elf_segment_map
*) bfd_zalloc (abfd
, amt
);
2614 n
->p_type
= PT_LOAD
;
2615 n
->count
= m
->count
- j
;
2616 for (k
= 0; k
< n
->count
; ++k
)
2617 n
->sections
[k
] = m
->sections
[j
+ k
];
2619 m
->p_size_valid
= 0;
2627 /* Add extra PPC sections -- Note, for now, make .sbss2 and
2628 .PPC.EMB.sbss0 a normal section, and not a bss section so
2629 that the linker doesn't crater when trying to make more than
2632 static const struct bfd_elf_special_section ppc_elf_special_sections
[] =
2634 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS
, SHF_ALLOC
+ SHF_EXECINSTR
},
2635 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
2636 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS
, SHF_ALLOC
},
2637 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
2638 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS
, SHF_ALLOC
},
2639 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED
, SHF_ALLOC
},
2640 { STRING_COMMA_LEN (APUINFO_SECTION_NAME
), 0, SHT_NOTE
, 0 },
2641 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS
, SHF_ALLOC
},
2642 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS
, SHF_ALLOC
},
2643 { NULL
, 0, 0, 0, 0 }
2646 /* This is what we want for new plt/got. */
2647 static struct bfd_elf_special_section ppc_alt_plt
=
2648 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS
, SHF_ALLOC
};
2650 static const struct bfd_elf_special_section
*
2651 ppc_elf_get_sec_type_attr (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
2653 const struct bfd_elf_special_section
*ssect
;
2655 /* See if this is one of the special sections. */
2656 if (sec
->name
== NULL
)
2659 ssect
= _bfd_elf_get_special_section (sec
->name
, ppc_elf_special_sections
,
2663 if (ssect
== ppc_elf_special_sections
&& (sec
->flags
& SEC_LOAD
) != 0)
2664 ssect
= &ppc_alt_plt
;
2668 return _bfd_elf_get_sec_type_attr (abfd
, sec
);
2671 /* Very simple linked list structure for recording apuinfo values. */
2672 typedef struct apuinfo_list
2674 struct apuinfo_list
*next
;
2675 unsigned long value
;
2679 static apuinfo_list
*head
;
2680 static bfd_boolean apuinfo_set
;
2683 apuinfo_list_init (void)
2686 apuinfo_set
= FALSE
;
2690 apuinfo_list_add (unsigned long value
)
2692 apuinfo_list
*entry
= head
;
2694 while (entry
!= NULL
)
2696 if (entry
->value
== value
)
2698 entry
= entry
->next
;
2701 entry
= bfd_malloc (sizeof (* entry
));
2705 entry
->value
= value
;
2711 apuinfo_list_length (void)
2713 apuinfo_list
*entry
;
2714 unsigned long count
;
2716 for (entry
= head
, count
= 0;
2718 entry
= entry
->next
)
2724 static inline unsigned long
2725 apuinfo_list_element (unsigned long number
)
2727 apuinfo_list
* entry
;
2731 entry
= entry
->next
)
2734 return entry
? entry
->value
: 0;
2738 apuinfo_list_finish (void)
2740 apuinfo_list
*entry
;
2742 for (entry
= head
; entry
;)
2744 apuinfo_list
*next
= entry
->next
;
2752 /* Scan the input BFDs and create a linked list of
2753 the APUinfo values that will need to be emitted. */
2756 ppc_elf_begin_write_processing (bfd
*abfd
, struct bfd_link_info
*link_info
)
2760 char *buffer
= NULL
;
2761 bfd_size_type largest_input_size
= 0;
2763 unsigned long length
;
2764 const char *error_message
= NULL
;
2766 if (link_info
== NULL
)
2769 apuinfo_list_init ();
2771 /* Read in the input sections contents. */
2772 for (ibfd
= link_info
->input_bfds
; ibfd
; ibfd
= ibfd
->link
.next
)
2774 unsigned long datum
;
2776 asec
= bfd_get_section_by_name (ibfd
, APUINFO_SECTION_NAME
);
2780 /* xgettext:c-format */
2781 error_message
= _("corrupt %s section in %B");
2782 length
= asec
->size
;
2787 if (largest_input_size
< asec
->size
)
2791 largest_input_size
= asec
->size
;
2792 buffer
= bfd_malloc (largest_input_size
);
2797 if (bfd_seek (ibfd
, asec
->filepos
, SEEK_SET
) != 0
2798 || (bfd_bread (buffer
, length
, ibfd
) != length
))
2800 /* xgettext:c-format */
2801 error_message
= _("unable to read in %s section from %B");
2805 /* Verify the contents of the header. Note - we have to
2806 extract the values this way in order to allow for a
2807 host whose endian-ness is different from the target. */
2808 datum
= bfd_get_32 (ibfd
, buffer
);
2809 if (datum
!= sizeof APUINFO_LABEL
)
2812 datum
= bfd_get_32 (ibfd
, buffer
+ 8);
2816 if (strcmp (buffer
+ 12, APUINFO_LABEL
) != 0)
2819 /* Get the number of bytes used for apuinfo entries. */
2820 datum
= bfd_get_32 (ibfd
, buffer
+ 4);
2821 if (datum
+ 20 != length
)
2824 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2825 for (i
= 0; i
< datum
; i
+= 4)
2826 apuinfo_list_add (bfd_get_32 (ibfd
, buffer
+ 20 + i
));
2829 error_message
= NULL
;
2833 /* Compute the size of the output section. */
2834 unsigned num_entries
= apuinfo_list_length ();
2836 /* Set the output section size, if it exists. */
2837 asec
= bfd_get_section_by_name (abfd
, APUINFO_SECTION_NAME
);
2839 if (asec
&& ! bfd_set_section_size (abfd
, asec
, 20 + num_entries
* 4))
2842 /* xgettext:c-format */
2843 error_message
= _("warning: unable to set size of %s section in %B");
2852 _bfd_error_handler (error_message
, ibfd
, APUINFO_SECTION_NAME
);
2855 /* Prevent the output section from accumulating the input sections'
2856 contents. We have already stored this in our linked list structure. */
2859 ppc_elf_write_section (bfd
*abfd ATTRIBUTE_UNUSED
,
2860 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
2862 bfd_byte
*contents ATTRIBUTE_UNUSED
)
2864 return apuinfo_set
&& strcmp (asec
->name
, APUINFO_SECTION_NAME
) == 0;
2867 /* Finally we can generate the output section. */
2870 ppc_elf_final_write_processing (bfd
*abfd
, bfd_boolean linker ATTRIBUTE_UNUSED
)
2875 unsigned num_entries
;
2876 bfd_size_type length
;
2878 asec
= bfd_get_section_by_name (abfd
, APUINFO_SECTION_NAME
);
2885 length
= asec
->size
;
2889 buffer
= bfd_malloc (length
);
2893 (_("failed to allocate space for new APUinfo section."));
2897 /* Create the apuinfo header. */
2898 num_entries
= apuinfo_list_length ();
2899 bfd_put_32 (abfd
, sizeof APUINFO_LABEL
, buffer
);
2900 bfd_put_32 (abfd
, num_entries
* 4, buffer
+ 4);
2901 bfd_put_32 (abfd
, 0x2, buffer
+ 8);
2902 strcpy ((char *) buffer
+ 12, APUINFO_LABEL
);
2905 for (i
= 0; i
< num_entries
; i
++)
2907 bfd_put_32 (abfd
, apuinfo_list_element (i
), buffer
+ length
);
2911 if (length
!= asec
->size
)
2912 _bfd_error_handler (_("failed to compute new APUinfo section."));
2914 if (! bfd_set_section_contents (abfd
, asec
, buffer
, (file_ptr
) 0, length
))
2915 _bfd_error_handler (_("failed to install new APUinfo section."));
2919 apuinfo_list_finish ();
2923 is_nonpic_glink_stub (bfd
*abfd
, asection
*glink
, bfd_vma off
)
2925 bfd_byte buf
[GLINK_ENTRY_SIZE
];
2927 if (!bfd_get_section_contents (abfd
, glink
, buf
, off
, GLINK_ENTRY_SIZE
))
2930 return ((bfd_get_32 (abfd
, buf
+ 0) & 0xffff0000) == LIS_11
2931 && (bfd_get_32 (abfd
, buf
+ 4) & 0xffff0000) == LWZ_11_11
2932 && bfd_get_32 (abfd
, buf
+ 8) == MTCTR_11
2933 && bfd_get_32 (abfd
, buf
+ 12) == BCTR
);
2937 section_covers_vma (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*section
, void *ptr
)
2939 bfd_vma vma
= *(bfd_vma
*) ptr
;
2940 return ((section
->flags
& SEC_ALLOC
) != 0
2941 && section
->vma
<= vma
2942 && vma
< section
->vma
+ section
->size
);
2946 ppc_elf_get_synthetic_symtab (bfd
*abfd
, long symcount
, asymbol
**syms
,
2947 long dynsymcount
, asymbol
**dynsyms
,
2950 bfd_boolean (*slurp_relocs
) (bfd
*, asection
*, asymbol
**, bfd_boolean
);
2951 asection
*plt
, *relplt
, *dynamic
, *glink
;
2952 bfd_vma glink_vma
= 0;
2953 bfd_vma resolv_vma
= 0;
2964 if ((abfd
->flags
& (DYNAMIC
| EXEC_P
)) == 0)
2967 if (dynsymcount
<= 0)
2970 relplt
= bfd_get_section_by_name (abfd
, ".rela.plt");
2974 plt
= bfd_get_section_by_name (abfd
, ".plt");
2978 /* Call common code to handle old-style executable PLTs. */
2979 if (elf_section_flags (plt
) & SHF_EXECINSTR
)
2980 return _bfd_elf_get_synthetic_symtab (abfd
, symcount
, syms
,
2981 dynsymcount
, dynsyms
, ret
);
2983 /* If this object was prelinked, the prelinker stored the address
2984 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2985 dynamic
= bfd_get_section_by_name (abfd
, ".dynamic");
2986 if (dynamic
!= NULL
)
2988 bfd_byte
*dynbuf
, *extdyn
, *extdynend
;
2990 void (*swap_dyn_in
) (bfd
*, const void *, Elf_Internal_Dyn
*);
2992 if (!bfd_malloc_and_get_section (abfd
, dynamic
, &dynbuf
))
2995 extdynsize
= get_elf_backend_data (abfd
)->s
->sizeof_dyn
;
2996 swap_dyn_in
= get_elf_backend_data (abfd
)->s
->swap_dyn_in
;
2999 extdynend
= extdyn
+ dynamic
->size
;
3000 for (; extdyn
< extdynend
; extdyn
+= extdynsize
)
3002 Elf_Internal_Dyn dyn
;
3003 (*swap_dyn_in
) (abfd
, extdyn
, &dyn
);
3005 if (dyn
.d_tag
== DT_NULL
)
3008 if (dyn
.d_tag
== DT_PPC_GOT
)
3010 unsigned int g_o_t
= dyn
.d_un
.d_val
;
3011 asection
*got
= bfd_get_section_by_name (abfd
, ".got");
3013 && bfd_get_section_contents (abfd
, got
, buf
,
3014 g_o_t
- got
->vma
+ 4, 4))
3015 glink_vma
= bfd_get_32 (abfd
, buf
);
3022 /* Otherwise we read the first plt entry. */
3025 if (bfd_get_section_contents (abfd
, plt
, buf
, 0, 4))
3026 glink_vma
= bfd_get_32 (abfd
, buf
);
3032 /* The .glink section usually does not survive the final
3033 link; search for the section (usually .text) where the
3034 glink stubs now reside. */
3035 glink
= bfd_sections_find_if (abfd
, section_covers_vma
, &glink_vma
);
3039 /* Determine glink PLT resolver by reading the relative branch
3040 from the first glink stub. */
3041 if (bfd_get_section_contents (abfd
, glink
, buf
,
3042 glink_vma
- glink
->vma
, 4))
3044 unsigned int insn
= bfd_get_32 (abfd
, buf
);
3046 /* The first glink stub may either branch to the resolver ... */
3048 if ((insn
& ~0x3fffffc) == 0)
3049 resolv_vma
= glink_vma
+ (insn
^ 0x2000000) - 0x2000000;
3051 /* ... or fall through a bunch of NOPs. */
3052 else if ((insn
^ B
^ NOP
) == 0)
3054 bfd_get_section_contents (abfd
, glink
, buf
,
3055 glink_vma
- glink
->vma
+ i
, 4);
3057 if (bfd_get_32 (abfd
, buf
) != NOP
)
3059 resolv_vma
= glink_vma
+ i
;
3064 count
= relplt
->size
/ sizeof (Elf32_External_Rela
);
3065 /* If the stubs are those for -shared/-pie then we might have
3066 multiple stubs for each plt entry. If that is the case then
3067 there is no way to associate stubs with their plt entries short
3068 of figuring out the GOT pointer value used in the stub. */
3069 if (!is_nonpic_glink_stub (abfd
, glink
,
3070 glink_vma
- GLINK_ENTRY_SIZE
- glink
->vma
))
3073 slurp_relocs
= get_elf_backend_data (abfd
)->s
->slurp_reloc_table
;
3074 if (! (*slurp_relocs
) (abfd
, relplt
, dynsyms
, TRUE
))
3077 size
= count
* sizeof (asymbol
);
3078 p
= relplt
->relocation
;
3079 for (i
= 0; i
< count
; i
++, p
++)
3081 size
+= strlen ((*p
->sym_ptr_ptr
)->name
) + sizeof ("@plt");
3083 size
+= sizeof ("+0x") - 1 + 8;
3086 size
+= sizeof (asymbol
) + sizeof ("__glink");
3089 size
+= sizeof (asymbol
) + sizeof ("__glink_PLTresolve");
3091 s
= *ret
= bfd_malloc (size
);
3095 stub_vma
= glink_vma
;
3096 names
= (char *) (s
+ count
+ 1 + (resolv_vma
!= 0));
3097 p
= relplt
->relocation
+ count
- 1;
3098 for (i
= 0; i
< count
; i
++)
3102 *s
= **p
->sym_ptr_ptr
;
3103 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3104 we are defining a symbol, ensure one of them is set. */
3105 if ((s
->flags
& BSF_LOCAL
) == 0)
3106 s
->flags
|= BSF_GLOBAL
;
3107 s
->flags
|= BSF_SYNTHETIC
;
3110 if (strcmp ((*p
->sym_ptr_ptr
)->name
, "__tls_get_addr_opt") == 0)
3112 s
->value
= stub_vma
- glink
->vma
;
3115 len
= strlen ((*p
->sym_ptr_ptr
)->name
);
3116 memcpy (names
, (*p
->sym_ptr_ptr
)->name
, len
);
3120 memcpy (names
, "+0x", sizeof ("+0x") - 1);
3121 names
+= sizeof ("+0x") - 1;
3122 bfd_sprintf_vma (abfd
, names
, p
->addend
);
3123 names
+= strlen (names
);
3125 memcpy (names
, "@plt", sizeof ("@plt"));
3126 names
+= sizeof ("@plt");
3131 /* Add a symbol at the start of the glink branch table. */
3132 memset (s
, 0, sizeof *s
);
3134 s
->flags
= BSF_GLOBAL
| BSF_SYNTHETIC
;
3136 s
->value
= glink_vma
- glink
->vma
;
3138 memcpy (names
, "__glink", sizeof ("__glink"));
3139 names
+= sizeof ("__glink");
3145 /* Add a symbol for the glink PLT resolver. */
3146 memset (s
, 0, sizeof *s
);
3148 s
->flags
= BSF_GLOBAL
| BSF_SYNTHETIC
;
3150 s
->value
= resolv_vma
- glink
->vma
;
3152 memcpy (names
, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3153 names
+= sizeof ("__glink_PLTresolve");
3161 /* The following functions are specific to the ELF linker, while
3162 functions above are used generally. They appear in this file more
3163 or less in the order in which they are called. eg.
3164 ppc_elf_check_relocs is called early in the link process,
3165 ppc_elf_finish_dynamic_sections is one of the last functions
3168 /* Track PLT entries needed for a given symbol. We might need more
3169 than one glink entry per symbol when generating a pic binary. */
3172 struct plt_entry
*next
;
3174 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3175 This field stores the offset into .got2 used to initialise the
3176 GOT pointer reg. It will always be at least 32768. (Current
3177 gcc always uses an offset of 32768, but ld -r will pack .got2
3178 sections together resulting in larger offsets). */
3181 /* The .got2 section. */
3184 /* PLT refcount or offset. */
3187 bfd_signed_vma refcount
;
3191 /* .glink stub offset. */
3192 bfd_vma glink_offset
;
3195 /* Of those relocs that might be copied as dynamic relocs, this function
3196 selects those that must be copied when linking a shared library,
3197 even when the symbol is local. */
3200 must_be_dyn_reloc (struct bfd_link_info
*info
,
3201 enum elf_ppc_reloc_type r_type
)
3210 case R_PPC_REL14_BRTAKEN
:
3211 case R_PPC_REL14_BRNTAKEN
:
3217 case R_PPC_TPREL16_LO
:
3218 case R_PPC_TPREL16_HI
:
3219 case R_PPC_TPREL16_HA
:
3220 return !bfd_link_executable (info
);
3224 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3225 copying dynamic variables from a shared lib into an app's dynbss
3226 section, and instead use a dynamic relocation to point into the
3228 #define ELIMINATE_COPY_RELOCS 1
3230 /* Used to track dynamic relocations for local symbols. */
3231 struct ppc_dyn_relocs
3233 struct ppc_dyn_relocs
*next
;
3235 /* The input section of the reloc. */
3238 /* Total number of relocs copied for the input section. */
3239 unsigned int count
: 31;
3241 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3242 unsigned int ifunc
: 1;
3245 /* PPC ELF linker hash entry. */
3247 struct ppc_elf_link_hash_entry
3249 struct elf_link_hash_entry elf
;
3251 /* If this symbol is used in the linker created sections, the processor
3252 specific backend uses this field to map the field into the offset
3253 from the beginning of the section. */
3254 elf_linker_section_pointers_t
*linker_section_pointer
;
3256 /* Track dynamic relocs copied for this symbol. */
3257 struct elf_dyn_relocs
*dyn_relocs
;
3259 /* Contexts in which symbol is used in the GOT (or TOC).
3260 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3261 corresponding relocs are encountered during check_relocs.
3262 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3263 indicate the corresponding GOT entry type is not needed. */
3264 #define TLS_GD 1 /* GD reloc. */
3265 #define TLS_LD 2 /* LD reloc. */
3266 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
3267 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3268 #define TLS_TLS 16 /* Any TLS reloc. */
3269 #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
3270 #define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
3273 /* Nonzero if we have seen a small data relocation referring to this
3275 unsigned char has_sda_refs
: 1;
3277 /* Flag use of given relocations. */
3278 unsigned char has_addr16_ha
: 1;
3279 unsigned char has_addr16_lo
: 1;
3282 #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3284 /* PPC ELF linker hash table. */
3286 struct ppc_elf_link_hash_table
3288 struct elf_link_hash_table elf
;
3290 /* Various options passed from the linker. */
3291 struct ppc_elf_params
*params
;
3293 /* Short-cuts to get to dynamic linker sections. */
3297 elf_linker_section_t sdata
[2];
3299 asection
*glink_eh_frame
;
3301 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3304 /* Shortcut to __tls_get_addr. */
3305 struct elf_link_hash_entry
*tls_get_addr
;
3307 /* The bfd that forced an old-style PLT. */
3310 /* TLS local dynamic got entry handling. */
3312 bfd_signed_vma refcount
;
3316 /* Offset of branch table to PltResolve function in glink. */
3317 bfd_vma glink_pltresolve
;
3319 /* Size of reserved GOT entries. */
3320 unsigned int got_header_size
;
3321 /* Non-zero if allocating the header left a gap. */
3322 unsigned int got_gap
;
3324 /* The type of PLT we have chosen to use. */
3325 enum ppc_elf_plt_type plt_type
;
3327 /* True if the target system is VxWorks. */
3328 unsigned int is_vxworks
:1;
3330 /* The size of PLT entries. */
3332 /* The distance between adjacent PLT slots. */
3334 /* The size of the first PLT entry. */
3335 int plt_initial_entry_size
;
3337 /* Small local sym cache. */
3338 struct sym_cache sym_cache
;
3341 /* Rename some of the generic section flags to better document how they
3342 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3344 /* Nonzero if this section has TLS related relocations. */
3345 #define has_tls_reloc sec_flg0
3347 /* Nonzero if this section has a call to __tls_get_addr. */
3348 #define has_tls_get_addr_call sec_flg1
3350 /* Get the PPC ELF linker hash table from a link_info structure. */
3352 #define ppc_elf_hash_table(p) \
3353 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3354 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
3356 /* Create an entry in a PPC ELF linker hash table. */
3358 static struct bfd_hash_entry
*
3359 ppc_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
3360 struct bfd_hash_table
*table
,
3363 /* Allocate the structure if it has not already been allocated by a
3367 entry
= bfd_hash_allocate (table
,
3368 sizeof (struct ppc_elf_link_hash_entry
));
3373 /* Call the allocation method of the superclass. */
3374 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
3377 ppc_elf_hash_entry (entry
)->linker_section_pointer
= NULL
;
3378 ppc_elf_hash_entry (entry
)->dyn_relocs
= NULL
;
3379 ppc_elf_hash_entry (entry
)->tls_mask
= 0;
3380 ppc_elf_hash_entry (entry
)->has_sda_refs
= 0;
3386 /* Create a PPC ELF linker hash table. */
3388 static struct bfd_link_hash_table
*
3389 ppc_elf_link_hash_table_create (bfd
*abfd
)
3391 struct ppc_elf_link_hash_table
*ret
;
3392 static struct ppc_elf_params default_params
3393 = { PLT_OLD
, 0, 1, 0, 0, 12, 0, 0, 0 };
3395 ret
= bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table
));
3399 if (!_bfd_elf_link_hash_table_init (&ret
->elf
, abfd
,
3400 ppc_elf_link_hash_newfunc
,
3401 sizeof (struct ppc_elf_link_hash_entry
),
3408 ret
->elf
.init_plt_refcount
.refcount
= 0;
3409 ret
->elf
.init_plt_refcount
.glist
= NULL
;
3410 ret
->elf
.init_plt_offset
.offset
= 0;
3411 ret
->elf
.init_plt_offset
.glist
= NULL
;
3413 ret
->params
= &default_params
;
3415 ret
->sdata
[0].name
= ".sdata";
3416 ret
->sdata
[0].sym_name
= "_SDA_BASE_";
3417 ret
->sdata
[0].bss_name
= ".sbss";
3419 ret
->sdata
[1].name
= ".sdata2";
3420 ret
->sdata
[1].sym_name
= "_SDA2_BASE_";
3421 ret
->sdata
[1].bss_name
= ".sbss2";
3423 ret
->plt_entry_size
= 12;
3424 ret
->plt_slot_size
= 8;
3425 ret
->plt_initial_entry_size
= 72;
3427 return &ret
->elf
.root
;
3430 /* Hook linker params into hash table. */
3433 ppc_elf_link_params (struct bfd_link_info
*info
, struct ppc_elf_params
*params
)
3435 struct ppc_elf_link_hash_table
*htab
= ppc_elf_hash_table (info
);
3438 htab
->params
= params
;
3439 params
->pagesize_p2
= bfd_log2 (params
->pagesize
);
3442 /* Create .got and the related sections. */
3445 ppc_elf_create_got (bfd
*abfd
, struct bfd_link_info
*info
)
3447 struct ppc_elf_link_hash_table
*htab
;
3449 if (!_bfd_elf_create_got_section (abfd
, info
))
3452 htab
= ppc_elf_hash_table (info
);
3453 if (!htab
->is_vxworks
)
3455 /* The powerpc .got has a blrl instruction in it. Mark it
3457 flagword flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_HAS_CONTENTS
3458 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3459 if (!bfd_set_section_flags (abfd
, htab
->elf
.sgot
, flags
))
3466 /* Create a special linker section, used for R_PPC_EMB_SDAI16 and
3467 R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata
3468 and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */
3471 ppc_elf_create_linker_section (bfd
*abfd
,
3472 struct bfd_link_info
*info
,
3474 elf_linker_section_t
*lsect
)
3478 flags
|= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
3479 | SEC_LINKER_CREATED
);
3481 s
= bfd_make_section_anyway_with_flags (abfd
, lsect
->name
, flags
);
3486 /* Define the sym on the first section of this name. */
3487 s
= bfd_get_section_by_name (abfd
, lsect
->name
);
3489 lsect
->sym
= _bfd_elf_define_linkage_sym (abfd
, info
, s
, lsect
->sym_name
);
3490 if (lsect
->sym
== NULL
)
3492 lsect
->sym
->root
.u
.def
.value
= 0x8000;
3497 ppc_elf_create_glink (bfd
*abfd
, struct bfd_link_info
*info
)
3499 struct ppc_elf_link_hash_table
*htab
= ppc_elf_hash_table (info
);
3503 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_READONLY
| SEC_HAS_CONTENTS
3504 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3505 s
= bfd_make_section_anyway_with_flags (abfd
, ".glink", flags
);
3508 || !bfd_set_section_alignment (abfd
, s
,
3509 htab
->params
->ppc476_workaround
? 6 : 4))
3512 if (!info
->no_ld_generated_unwind_info
)
3514 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
| SEC_HAS_CONTENTS
3515 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3516 s
= bfd_make_section_anyway_with_flags (abfd
, ".eh_frame", flags
);
3517 htab
->glink_eh_frame
= s
;
3519 || !bfd_set_section_alignment (abfd
, s
, 2))
3523 flags
= SEC_ALLOC
| SEC_LINKER_CREATED
;
3524 s
= bfd_make_section_anyway_with_flags (abfd
, ".iplt", flags
);
3527 || !bfd_set_section_alignment (abfd
, s
, 4))
3530 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
| SEC_HAS_CONTENTS
3531 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3532 s
= bfd_make_section_anyway_with_flags (abfd
, ".rela.iplt", flags
);
3533 htab
->elf
.irelplt
= s
;
3535 || ! bfd_set_section_alignment (abfd
, s
, 2))
3538 if (!ppc_elf_create_linker_section (abfd
, info
, 0,
3542 if (!ppc_elf_create_linker_section (abfd
, info
, SEC_READONLY
,
3549 /* We have to create .dynsbss and .rela.sbss here so that they get mapped
3550 to output sections (just like _bfd_elf_create_dynamic_sections has
3551 to create .dynbss and .rela.bss). */
3554 ppc_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
3556 struct ppc_elf_link_hash_table
*htab
;
3560 htab
= ppc_elf_hash_table (info
);
3562 if (htab
->elf
.sgot
== NULL
3563 && !ppc_elf_create_got (abfd
, info
))
3566 if (!_bfd_elf_create_dynamic_sections (abfd
, info
))
3569 if (htab
->glink
== NULL
3570 && !ppc_elf_create_glink (abfd
, info
))
3573 s
= bfd_make_section_anyway_with_flags (abfd
, ".dynsbss",
3574 SEC_ALLOC
| SEC_LINKER_CREATED
);
3579 if (! bfd_link_pic (info
))
3581 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
| SEC_HAS_CONTENTS
3582 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3583 s
= bfd_make_section_anyway_with_flags (abfd
, ".rela.sbss", flags
);
3586 || ! bfd_set_section_alignment (abfd
, s
, 2))
3590 if (htab
->is_vxworks
3591 && !elf_vxworks_create_dynamic_sections (abfd
, info
, &htab
->srelplt2
))
3595 flags
= SEC_ALLOC
| SEC_CODE
| SEC_LINKER_CREATED
;
3596 if (htab
->plt_type
== PLT_VXWORKS
)
3597 /* The VxWorks PLT is a loaded section with contents. */
3598 flags
|= SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_READONLY
;
3599 return bfd_set_section_flags (abfd
, s
, flags
);
3602 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3605 ppc_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
3606 struct elf_link_hash_entry
*dir
,
3607 struct elf_link_hash_entry
*ind
)
3609 struct ppc_elf_link_hash_entry
*edir
, *eind
;
3611 edir
= (struct ppc_elf_link_hash_entry
*) dir
;
3612 eind
= (struct ppc_elf_link_hash_entry
*) ind
;
3614 edir
->tls_mask
|= eind
->tls_mask
;
3615 edir
->has_sda_refs
|= eind
->has_sda_refs
;
3617 /* If called to transfer flags for a weakdef during processing
3618 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3619 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3620 if (!(ELIMINATE_COPY_RELOCS
3621 && eind
->elf
.root
.type
!= bfd_link_hash_indirect
3622 && edir
->elf
.dynamic_adjusted
))
3623 edir
->elf
.non_got_ref
|= eind
->elf
.non_got_ref
;
3625 if (edir
->elf
.versioned
!= versioned_hidden
)
3626 edir
->elf
.ref_dynamic
|= eind
->elf
.ref_dynamic
;
3627 edir
->elf
.ref_regular
|= eind
->elf
.ref_regular
;
3628 edir
->elf
.ref_regular_nonweak
|= eind
->elf
.ref_regular_nonweak
;
3629 edir
->elf
.needs_plt
|= eind
->elf
.needs_plt
;
3630 edir
->elf
.pointer_equality_needed
|= eind
->elf
.pointer_equality_needed
;
3632 if (eind
->dyn_relocs
!= NULL
)
3634 if (edir
->dyn_relocs
!= NULL
)
3636 struct elf_dyn_relocs
**pp
;
3637 struct elf_dyn_relocs
*p
;
3639 /* Add reloc counts against the indirect sym to the direct sym
3640 list. Merge any entries against the same section. */
3641 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
3643 struct elf_dyn_relocs
*q
;
3645 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
3646 if (q
->sec
== p
->sec
)
3648 q
->pc_count
+= p
->pc_count
;
3649 q
->count
+= p
->count
;
3656 *pp
= edir
->dyn_relocs
;
3659 edir
->dyn_relocs
= eind
->dyn_relocs
;
3660 eind
->dyn_relocs
= NULL
;
3663 /* If we were called to copy over info for a weak sym, that's all.
3664 You might think dyn_relocs need not be copied over; After all,
3665 both syms will be dynamic or both non-dynamic so we're just
3666 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
3667 code in ppc_elf_adjust_dynamic_symbol needs to check for
3668 dyn_relocs in read-only sections, and it does so on what is the
3670 if (eind
->elf
.root
.type
!= bfd_link_hash_indirect
)
3673 /* Copy over the GOT refcount entries that we may have already seen to
3674 the symbol which just became indirect. */
3675 edir
->elf
.got
.refcount
+= eind
->elf
.got
.refcount
;
3676 eind
->elf
.got
.refcount
= 0;
3678 /* And plt entries. */
3679 if (eind
->elf
.plt
.plist
!= NULL
)
3681 if (edir
->elf
.plt
.plist
!= NULL
)
3683 struct plt_entry
**entp
;
3684 struct plt_entry
*ent
;
3686 for (entp
= &eind
->elf
.plt
.plist
; (ent
= *entp
) != NULL
; )
3688 struct plt_entry
*dent
;
3690 for (dent
= edir
->elf
.plt
.plist
; dent
!= NULL
; dent
= dent
->next
)
3691 if (dent
->sec
== ent
->sec
&& dent
->addend
== ent
->addend
)
3693 dent
->plt
.refcount
+= ent
->plt
.refcount
;
3700 *entp
= edir
->elf
.plt
.plist
;
3703 edir
->elf
.plt
.plist
= eind
->elf
.plt
.plist
;
3704 eind
->elf
.plt
.plist
= NULL
;
3707 if (eind
->elf
.dynindx
!= -1)
3709 if (edir
->elf
.dynindx
!= -1)
3710 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
3711 edir
->elf
.dynstr_index
);
3712 edir
->elf
.dynindx
= eind
->elf
.dynindx
;
3713 edir
->elf
.dynstr_index
= eind
->elf
.dynstr_index
;
3714 eind
->elf
.dynindx
= -1;
3715 eind
->elf
.dynstr_index
= 0;
3719 /* Hook called by the linker routine which adds symbols from an object
3720 file. We use it to put .comm items in .sbss, and not .bss. */
3723 ppc_elf_add_symbol_hook (bfd
*abfd
,
3724 struct bfd_link_info
*info
,
3725 Elf_Internal_Sym
*sym
,
3726 const char **namep ATTRIBUTE_UNUSED
,
3727 flagword
*flagsp ATTRIBUTE_UNUSED
,
3731 if (sym
->st_shndx
== SHN_COMMON
3732 && !bfd_link_relocatable (info
)
3733 && is_ppc_elf (info
->output_bfd
)
3734 && sym
->st_size
<= elf_gp_size (abfd
))
3736 /* Common symbols less than or equal to -G nn bytes are automatically
3738 struct ppc_elf_link_hash_table
*htab
;
3740 htab
= ppc_elf_hash_table (info
);
3741 if (htab
->sbss
== NULL
)
3743 flagword flags
= SEC_IS_COMMON
| SEC_LINKER_CREATED
;
3745 if (!htab
->elf
.dynobj
)
3746 htab
->elf
.dynobj
= abfd
;
3748 htab
->sbss
= bfd_make_section_anyway_with_flags (htab
->elf
.dynobj
,
3751 if (htab
->sbss
== NULL
)
3756 *valp
= sym
->st_size
;
3759 if (ELF_ST_TYPE (sym
->st_info
) == STT_GNU_IFUNC
3760 && (abfd
->flags
& DYNAMIC
) == 0
3761 && bfd_get_flavour (info
->output_bfd
) == bfd_target_elf_flavour
)
3762 elf_tdata (info
->output_bfd
)->has_gnu_symbols
|= elf_gnu_symbol_ifunc
;
3767 /* Find a linker generated pointer with a given addend and type. */
3769 static elf_linker_section_pointers_t
*
3770 elf_find_pointer_linker_section
3771 (elf_linker_section_pointers_t
*linker_pointers
,
3773 elf_linker_section_t
*lsect
)
3775 for ( ; linker_pointers
!= NULL
; linker_pointers
= linker_pointers
->next
)
3776 if (lsect
== linker_pointers
->lsect
&& addend
== linker_pointers
->addend
)
3777 return linker_pointers
;
3782 /* Allocate a pointer to live in a linker created section. */
3785 elf_allocate_pointer_linker_section (bfd
*abfd
,
3786 elf_linker_section_t
*lsect
,
3787 struct elf_link_hash_entry
*h
,
3788 const Elf_Internal_Rela
*rel
)
3790 elf_linker_section_pointers_t
**ptr_linker_section_ptr
= NULL
;
3791 elf_linker_section_pointers_t
*linker_section_ptr
;
3792 unsigned long r_symndx
= ELF32_R_SYM (rel
->r_info
);
3795 BFD_ASSERT (lsect
!= NULL
);
3797 /* Is this a global symbol? */
3800 struct ppc_elf_link_hash_entry
*eh
;
3802 /* Has this symbol already been allocated? If so, our work is done. */
3803 eh
= (struct ppc_elf_link_hash_entry
*) h
;
3804 if (elf_find_pointer_linker_section (eh
->linker_section_pointer
,
3809 ptr_linker_section_ptr
= &eh
->linker_section_pointer
;
3813 BFD_ASSERT (is_ppc_elf (abfd
));
3815 /* Allocation of a pointer to a local symbol. */
3816 elf_linker_section_pointers_t
**ptr
= elf_local_ptr_offsets (abfd
);
3818 /* Allocate a table to hold the local symbols if first time. */
3821 unsigned int num_symbols
= elf_symtab_hdr (abfd
).sh_info
;
3824 amt
*= sizeof (elf_linker_section_pointers_t
*);
3825 ptr
= bfd_zalloc (abfd
, amt
);
3830 elf_local_ptr_offsets (abfd
) = ptr
;
3833 /* Has this symbol already been allocated? If so, our work is done. */
3834 if (elf_find_pointer_linker_section (ptr
[r_symndx
],
3839 ptr_linker_section_ptr
= &ptr
[r_symndx
];
3842 /* Allocate space for a pointer in the linker section, and allocate
3843 a new pointer record from internal memory. */
3844 BFD_ASSERT (ptr_linker_section_ptr
!= NULL
);
3845 amt
= sizeof (elf_linker_section_pointers_t
);
3846 linker_section_ptr
= bfd_alloc (abfd
, amt
);
3848 if (!linker_section_ptr
)
3851 linker_section_ptr
->next
= *ptr_linker_section_ptr
;
3852 linker_section_ptr
->addend
= rel
->r_addend
;
3853 linker_section_ptr
->lsect
= lsect
;
3854 *ptr_linker_section_ptr
= linker_section_ptr
;
3856 if (!bfd_set_section_alignment (lsect
->section
->owner
, lsect
->section
, 2))
3858 linker_section_ptr
->offset
= lsect
->section
->size
;
3859 lsect
->section
->size
+= 4;
3863 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3864 lsect
->name
, (long) linker_section_ptr
->offset
,
3865 (long) lsect
->section
->size
);
3871 static struct plt_entry
**
3872 update_local_sym_info (bfd
*abfd
,
3873 Elf_Internal_Shdr
*symtab_hdr
,
3874 unsigned long r_symndx
,
3877 bfd_signed_vma
*local_got_refcounts
= elf_local_got_refcounts (abfd
);
3878 struct plt_entry
**local_plt
;
3879 char *local_got_tls_masks
;
3881 if (local_got_refcounts
== NULL
)
3883 bfd_size_type size
= symtab_hdr
->sh_info
;
3885 size
*= (sizeof (*local_got_refcounts
)
3886 + sizeof (*local_plt
)
3887 + sizeof (*local_got_tls_masks
));
3888 local_got_refcounts
= bfd_zalloc (abfd
, size
);
3889 if (local_got_refcounts
== NULL
)
3891 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
3894 local_plt
= (struct plt_entry
**) (local_got_refcounts
+ symtab_hdr
->sh_info
);
3895 local_got_tls_masks
= (char *) (local_plt
+ symtab_hdr
->sh_info
);
3896 local_got_tls_masks
[r_symndx
] |= tls_type
;
3897 if (tls_type
!= PLT_IFUNC
)
3898 local_got_refcounts
[r_symndx
] += 1;
3899 return local_plt
+ r_symndx
;
3903 update_plt_info (bfd
*abfd
, struct plt_entry
**plist
,
3904 asection
*sec
, bfd_vma addend
)
3906 struct plt_entry
*ent
;
3910 for (ent
= *plist
; ent
!= NULL
; ent
= ent
->next
)
3911 if (ent
->sec
== sec
&& ent
->addend
== addend
)
3915 bfd_size_type amt
= sizeof (*ent
);
3916 ent
= bfd_alloc (abfd
, amt
);
3921 ent
->addend
= addend
;
3922 ent
->plt
.refcount
= 0;
3925 ent
->plt
.refcount
+= 1;
3929 static struct plt_entry
*
3930 find_plt_ent (struct plt_entry
**plist
, asection
*sec
, bfd_vma addend
)
3932 struct plt_entry
*ent
;
3936 for (ent
= *plist
; ent
!= NULL
; ent
= ent
->next
)
3937 if (ent
->sec
== sec
&& ent
->addend
== addend
)
3943 is_branch_reloc (enum elf_ppc_reloc_type r_type
)
3945 return (r_type
== R_PPC_PLTREL24
3946 || r_type
== R_PPC_LOCAL24PC
3947 || r_type
== R_PPC_REL24
3948 || r_type
== R_PPC_REL14
3949 || r_type
== R_PPC_REL14_BRTAKEN
3950 || r_type
== R_PPC_REL14_BRNTAKEN
3951 || r_type
== R_PPC_ADDR24
3952 || r_type
== R_PPC_ADDR14
3953 || r_type
== R_PPC_ADDR14_BRTAKEN
3954 || r_type
== R_PPC_ADDR14_BRNTAKEN
3955 || r_type
== R_PPC_VLE_REL24
);
3959 bad_shared_reloc (bfd
*abfd
, enum elf_ppc_reloc_type r_type
)
3962 /* xgettext:c-format */
3963 (_("%B: relocation %s cannot be used when making a shared object"),
3965 ppc_elf_howto_table
[r_type
]->name
);
3966 bfd_set_error (bfd_error_bad_value
);
3969 /* Look through the relocs for a section during the first phase, and
3970 allocate space in the global offset table or procedure linkage
3974 ppc_elf_check_relocs (bfd
*abfd
,
3975 struct bfd_link_info
*info
,
3977 const Elf_Internal_Rela
*relocs
)
3979 struct ppc_elf_link_hash_table
*htab
;
3980 Elf_Internal_Shdr
*symtab_hdr
;
3981 struct elf_link_hash_entry
**sym_hashes
;
3982 const Elf_Internal_Rela
*rel
;
3983 const Elf_Internal_Rela
*rel_end
;
3984 asection
*got2
, *sreloc
;
3985 struct elf_link_hash_entry
*tga
;
3987 if (bfd_link_relocatable (info
))
3990 /* Don't do anything special with non-loaded, non-alloced sections.
3991 In particular, any relocs in such sections should not affect GOT
3992 and PLT reference counting (ie. we don't allow them to create GOT
3993 or PLT entries), there's no possibility or desire to optimize TLS
3994 relocs, and there's not much point in propagating relocs to shared
3995 libs that the dynamic linker won't relocate. */
3996 if ((sec
->flags
& SEC_ALLOC
) == 0)
4000 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
4004 BFD_ASSERT (is_ppc_elf (abfd
));
4006 /* Initialize howto table if not already done. */
4007 if (!ppc_elf_howto_table
[R_PPC_ADDR32
])
4008 ppc_elf_howto_init ();
4010 htab
= ppc_elf_hash_table (info
);
4011 if (htab
->glink
== NULL
)
4013 if (htab
->elf
.dynobj
== NULL
)
4014 htab
->elf
.dynobj
= abfd
;
4015 if (!ppc_elf_create_glink (htab
->elf
.dynobj
, info
))
4018 tga
= elf_link_hash_lookup (&htab
->elf
, "__tls_get_addr",
4019 FALSE
, FALSE
, TRUE
);
4020 symtab_hdr
= &elf_symtab_hdr (abfd
);
4021 sym_hashes
= elf_sym_hashes (abfd
);
4022 got2
= bfd_get_section_by_name (abfd
, ".got2");
4025 rel_end
= relocs
+ sec
->reloc_count
;
4026 for (rel
= relocs
; rel
< rel_end
; rel
++)
4028 unsigned long r_symndx
;
4029 enum elf_ppc_reloc_type r_type
;
4030 struct elf_link_hash_entry
*h
;
4032 struct plt_entry
**ifunc
;
4034 r_symndx
= ELF32_R_SYM (rel
->r_info
);
4035 if (r_symndx
< symtab_hdr
->sh_info
)
4039 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4040 while (h
->root
.type
== bfd_link_hash_indirect
4041 || h
->root
.type
== bfd_link_hash_warning
)
4042 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4044 /* PR15323, ref flags aren't set for references in the same
4046 h
->root
.non_ir_ref
= 1;
4049 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
4050 This shows up in particular in an R_PPC_ADDR32 in the eabi
4053 && htab
->elf
.sgot
== NULL
4054 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
4056 if (htab
->elf
.dynobj
== NULL
)
4057 htab
->elf
.dynobj
= abfd
;
4058 if (!ppc_elf_create_got (htab
->elf
.dynobj
, info
))
4060 BFD_ASSERT (h
== htab
->elf
.hgot
);
4064 r_type
= ELF32_R_TYPE (rel
->r_info
);
4066 if (h
== NULL
&& !htab
->is_vxworks
)
4068 Elf_Internal_Sym
*isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
4073 if (ELF_ST_TYPE (isym
->st_info
) == STT_GNU_IFUNC
)
4075 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
4076 ifunc
= update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
4081 /* STT_GNU_IFUNC symbols must have a PLT entry;
4082 In a non-pie executable even when there are
4084 if (!bfd_link_pic (info
)
4085 || is_branch_reloc (r_type
))
4088 if (r_type
== R_PPC_PLTREL24
)
4090 ppc_elf_tdata (abfd
)->makes_plt_call
= 1;
4091 if (bfd_link_pic (info
))
4092 addend
= rel
->r_addend
;
4094 if (!update_plt_info (abfd
, ifunc
, got2
, addend
))
4100 if (!htab
->is_vxworks
4101 && is_branch_reloc (r_type
)
4106 && (ELF32_R_TYPE (rel
[-1].r_info
) == R_PPC_TLSGD
4107 || ELF32_R_TYPE (rel
[-1].r_info
) == R_PPC_TLSLD
))
4108 /* We have a new-style __tls_get_addr call with a marker
4112 /* Mark this section as having an old-style call. */
4113 sec
->has_tls_get_addr_call
= 1;
4120 /* These special tls relocs tie a call to __tls_get_addr with
4121 its parameter symbol. */
4124 case R_PPC_GOT_TLSLD16
:
4125 case R_PPC_GOT_TLSLD16_LO
:
4126 case R_PPC_GOT_TLSLD16_HI
:
4127 case R_PPC_GOT_TLSLD16_HA
:
4128 tls_type
= TLS_TLS
| TLS_LD
;
4131 case R_PPC_GOT_TLSGD16
:
4132 case R_PPC_GOT_TLSGD16_LO
:
4133 case R_PPC_GOT_TLSGD16_HI
:
4134 case R_PPC_GOT_TLSGD16_HA
:
4135 tls_type
= TLS_TLS
| TLS_GD
;
4138 case R_PPC_GOT_TPREL16
:
4139 case R_PPC_GOT_TPREL16_LO
:
4140 case R_PPC_GOT_TPREL16_HI
:
4141 case R_PPC_GOT_TPREL16_HA
:
4142 if (bfd_link_pic (info
))
4143 info
->flags
|= DF_STATIC_TLS
;
4144 tls_type
= TLS_TLS
| TLS_TPREL
;
4147 case R_PPC_GOT_DTPREL16
:
4148 case R_PPC_GOT_DTPREL16_LO
:
4149 case R_PPC_GOT_DTPREL16_HI
:
4150 case R_PPC_GOT_DTPREL16_HA
:
4151 tls_type
= TLS_TLS
| TLS_DTPREL
;
4153 sec
->has_tls_reloc
= 1;
4156 /* GOT16 relocations */
4158 case R_PPC_GOT16_LO
:
4159 case R_PPC_GOT16_HI
:
4160 case R_PPC_GOT16_HA
:
4161 /* This symbol requires a global offset table entry. */
4162 if (htab
->elf
.sgot
== NULL
)
4164 if (htab
->elf
.dynobj
== NULL
)
4165 htab
->elf
.dynobj
= abfd
;
4166 if (!ppc_elf_create_got (htab
->elf
.dynobj
, info
))
4171 h
->got
.refcount
+= 1;
4172 ppc_elf_hash_entry (h
)->tls_mask
|= tls_type
;
4175 /* This is a global offset table entry for a local symbol. */
4176 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
, tls_type
))
4179 /* We may also need a plt entry if the symbol turns out to be
4181 if (h
!= NULL
&& !bfd_link_pic (info
))
4183 if (!update_plt_info (abfd
, &h
->plt
.plist
, NULL
, 0))
4188 /* Indirect .sdata relocation. */
4189 case R_PPC_EMB_SDAI16
:
4190 if (bfd_link_pic (info
))
4192 bad_shared_reloc (abfd
, r_type
);
4195 htab
->sdata
[0].sym
->ref_regular
= 1;
4196 if (!elf_allocate_pointer_linker_section (abfd
, &htab
->sdata
[0],
4201 ppc_elf_hash_entry (h
)->has_sda_refs
= TRUE
;
4202 h
->non_got_ref
= TRUE
;
4206 /* Indirect .sdata2 relocation. */
4207 case R_PPC_EMB_SDA2I16
:
4208 if (bfd_link_pic (info
))
4210 bad_shared_reloc (abfd
, r_type
);
4213 htab
->sdata
[1].sym
->ref_regular
= 1;
4214 if (!elf_allocate_pointer_linker_section (abfd
, &htab
->sdata
[1],
4219 ppc_elf_hash_entry (h
)->has_sda_refs
= TRUE
;
4220 h
->non_got_ref
= TRUE
;
4224 case R_PPC_SDAREL16
:
4225 htab
->sdata
[0].sym
->ref_regular
= 1;
4228 case R_PPC_VLE_SDAREL_LO16A
:
4229 case R_PPC_VLE_SDAREL_LO16D
:
4230 case R_PPC_VLE_SDAREL_HI16A
:
4231 case R_PPC_VLE_SDAREL_HI16D
:
4232 case R_PPC_VLE_SDAREL_HA16A
:
4233 case R_PPC_VLE_SDAREL_HA16D
:
4236 ppc_elf_hash_entry (h
)->has_sda_refs
= TRUE
;
4237 h
->non_got_ref
= TRUE
;
4241 case R_PPC_VLE_REL8
:
4242 case R_PPC_VLE_REL15
:
4243 case R_PPC_VLE_REL24
:
4244 case R_PPC_VLE_LO16A
:
4245 case R_PPC_VLE_LO16D
:
4246 case R_PPC_VLE_HI16A
:
4247 case R_PPC_VLE_HI16D
:
4248 case R_PPC_VLE_HA16A
:
4249 case R_PPC_VLE_HA16D
:
4252 case R_PPC_EMB_SDA2REL
:
4253 if (bfd_link_pic (info
))
4255 bad_shared_reloc (abfd
, r_type
);
4258 htab
->sdata
[1].sym
->ref_regular
= 1;
4261 ppc_elf_hash_entry (h
)->has_sda_refs
= TRUE
;
4262 h
->non_got_ref
= TRUE
;
4266 case R_PPC_VLE_SDA21_LO
:
4267 case R_PPC_VLE_SDA21
:
4268 case R_PPC_EMB_SDA21
:
4269 case R_PPC_EMB_RELSDA
:
4270 if (bfd_link_pic (info
))
4272 bad_shared_reloc (abfd
, r_type
);
4277 ppc_elf_hash_entry (h
)->has_sda_refs
= TRUE
;
4278 h
->non_got_ref
= TRUE
;
4282 case R_PPC_EMB_NADDR32
:
4283 case R_PPC_EMB_NADDR16
:
4284 case R_PPC_EMB_NADDR16_LO
:
4285 case R_PPC_EMB_NADDR16_HI
:
4286 case R_PPC_EMB_NADDR16_HA
:
4287 if (bfd_link_pic (info
))
4289 bad_shared_reloc (abfd
, r_type
);
4293 h
->non_got_ref
= TRUE
;
4296 case R_PPC_PLTREL24
:
4301 case R_PPC_PLTREL32
:
4302 case R_PPC_PLT16_LO
:
4303 case R_PPC_PLT16_HI
:
4304 case R_PPC_PLT16_HA
:
4306 fprintf (stderr
, "Reloc requires a PLT entry\n");
4308 /* This symbol requires a procedure linkage table entry. */
4313 /* It does not make sense to have a procedure linkage
4314 table entry for a non-ifunc local symbol. */
4315 info
->callbacks
->einfo
4316 /* xgettext:c-format */
4317 (_("%H: %s reloc against local symbol\n"),
4318 abfd
, sec
, rel
->r_offset
,
4319 ppc_elf_howto_table
[r_type
]->name
);
4320 bfd_set_error (bfd_error_bad_value
);
4328 if (r_type
== R_PPC_PLTREL24
)
4330 ppc_elf_tdata (abfd
)->makes_plt_call
= 1;
4331 if (bfd_link_pic (info
))
4332 addend
= rel
->r_addend
;
4335 if (!update_plt_info (abfd
, &h
->plt
.plist
, got2
, addend
))
4340 /* The following relocations don't need to propagate the
4341 relocation if linking a shared object since they are
4342 section relative. */
4344 case R_PPC_SECTOFF_LO
:
4345 case R_PPC_SECTOFF_HI
:
4346 case R_PPC_SECTOFF_HA
:
4347 case R_PPC_DTPREL16
:
4348 case R_PPC_DTPREL16_LO
:
4349 case R_PPC_DTPREL16_HI
:
4350 case R_PPC_DTPREL16_HA
:
4355 case R_PPC_REL16_LO
:
4356 case R_PPC_REL16_HI
:
4357 case R_PPC_REL16_HA
:
4358 case R_PPC_REL16DX_HA
:
4359 ppc_elf_tdata (abfd
)->has_rel16
= 1;
4362 /* These are just markers. */
4364 case R_PPC_EMB_MRKREF
:
4368 case R_PPC_RELAX_PLT
:
4369 case R_PPC_RELAX_PLTREL24
:
4373 /* These should only appear in dynamic objects. */
4375 case R_PPC_GLOB_DAT
:
4376 case R_PPC_JMP_SLOT
:
4377 case R_PPC_RELATIVE
:
4378 case R_PPC_IRELATIVE
:
4381 /* These aren't handled yet. We'll report an error later. */
4383 case R_PPC_EMB_RELSEC16
:
4384 case R_PPC_EMB_RELST_LO
:
4385 case R_PPC_EMB_RELST_HI
:
4386 case R_PPC_EMB_RELST_HA
:
4387 case R_PPC_EMB_BIT_FLD
:
4390 /* This refers only to functions defined in the shared library. */
4391 case R_PPC_LOCAL24PC
:
4392 if (h
!= NULL
&& h
== htab
->elf
.hgot
&& htab
->plt_type
== PLT_UNSET
)
4394 htab
->plt_type
= PLT_OLD
;
4395 htab
->old_bfd
= abfd
;
4397 if (h
!= NULL
&& h
->type
== STT_GNU_IFUNC
)
4400 if (!update_plt_info (abfd
, &h
->plt
.plist
, NULL
, 0))
4405 /* This relocation describes the C++ object vtable hierarchy.
4406 Reconstruct it for later use during GC. */
4407 case R_PPC_GNU_VTINHERIT
:
4408 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
4412 /* This relocation describes which C++ vtable entries are actually
4413 used. Record for later use during GC. */
4414 case R_PPC_GNU_VTENTRY
:
4415 BFD_ASSERT (h
!= NULL
);
4417 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
4421 /* We shouldn't really be seeing these. */
4424 case R_PPC_TPREL16_LO
:
4425 case R_PPC_TPREL16_HI
:
4426 case R_PPC_TPREL16_HA
:
4427 if (bfd_link_pic (info
))
4428 info
->flags
|= DF_STATIC_TLS
;
4432 case R_PPC_DTPMOD32
:
4433 case R_PPC_DTPREL32
:
4439 && (sec
->flags
& SEC_CODE
) != 0
4440 && bfd_link_pic (info
)
4441 && htab
->plt_type
== PLT_UNSET
)
4443 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4444 the start of a function, which assembles to a REL32
4445 reference to .got2. If we detect one of these, then
4446 force the old PLT layout because the linker cannot
4447 reliably deduce the GOT pointer value needed for
4450 Elf_Internal_Sym
*isym
;
4452 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
4457 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
4460 htab
->plt_type
= PLT_OLD
;
4461 htab
->old_bfd
= abfd
;
4464 if (h
== NULL
|| h
== htab
->elf
.hgot
)
4470 case R_PPC_ADDR16_LO
:
4471 case R_PPC_ADDR16_HI
:
4472 case R_PPC_ADDR16_HA
:
4475 if (h
!= NULL
&& !bfd_link_pic (info
))
4477 /* We may need a plt entry if the symbol turns out to be
4478 a function defined in a dynamic object. */
4479 if (!update_plt_info (abfd
, &h
->plt
.plist
, NULL
, 0))
4482 /* We may need a copy reloc too. */
4484 h
->pointer_equality_needed
= 1;
4485 if (r_type
== R_PPC_ADDR16_HA
)
4486 ppc_elf_hash_entry (h
)->has_addr16_ha
= 1;
4487 if (r_type
== R_PPC_ADDR16_LO
)
4488 ppc_elf_hash_entry (h
)->has_addr16_lo
= 1;
4494 case R_PPC_REL14_BRTAKEN
:
4495 case R_PPC_REL14_BRNTAKEN
:
4498 if (h
== htab
->elf
.hgot
)
4500 if (htab
->plt_type
== PLT_UNSET
)
4502 htab
->plt_type
= PLT_OLD
;
4503 htab
->old_bfd
= abfd
;
4511 case R_PPC_ADDR14_BRTAKEN
:
4512 case R_PPC_ADDR14_BRNTAKEN
:
4513 if (h
!= NULL
&& !bfd_link_pic (info
))
4515 /* We may need a plt entry if the symbol turns out to be
4516 a function defined in a dynamic object. */
4518 if (!update_plt_info (abfd
, &h
->plt
.plist
, NULL
, 0))
4524 /* If we are creating a shared library, and this is a reloc
4525 against a global symbol, or a non PC relative reloc
4526 against a local symbol, then we need to copy the reloc
4527 into the shared library. However, if we are linking with
4528 -Bsymbolic, we do not need to copy a reloc against a
4529 global symbol which is defined in an object we are
4530 including in the link (i.e., DEF_REGULAR is set). At
4531 this point we have not seen all the input files, so it is
4532 possible that DEF_REGULAR is not set now but will be set
4533 later (it is never cleared). In case of a weak definition,
4534 DEF_REGULAR may be cleared later by a strong definition in
4535 a shared library. We account for that possibility below by
4536 storing information in the dyn_relocs field of the hash
4537 table entry. A similar situation occurs when creating
4538 shared libraries and symbol visibility changes render the
4541 If on the other hand, we are creating an executable, we
4542 may need to keep relocations for symbols satisfied by a
4543 dynamic library if we manage to avoid copy relocs for the
4545 if ((bfd_link_pic (info
)
4546 && (must_be_dyn_reloc (info
, r_type
)
4548 && (!SYMBOLIC_BIND (info
, h
)
4549 || h
->root
.type
== bfd_link_hash_defweak
4550 || !h
->def_regular
))))
4551 || (ELIMINATE_COPY_RELOCS
4552 && !bfd_link_pic (info
)
4554 && (h
->root
.type
== bfd_link_hash_defweak
4555 || !h
->def_regular
)))
4559 "ppc_elf_check_relocs needs to "
4560 "create relocation for %s\n",
4561 (h
&& h
->root
.root
.string
4562 ? h
->root
.root
.string
: "<unknown>"));
4566 if (htab
->elf
.dynobj
== NULL
)
4567 htab
->elf
.dynobj
= abfd
;
4569 sreloc
= _bfd_elf_make_dynamic_reloc_section
4570 (sec
, htab
->elf
.dynobj
, 2, abfd
, /*rela?*/ TRUE
);
4576 /* If this is a global symbol, we count the number of
4577 relocations we need for this symbol. */
4580 struct elf_dyn_relocs
*p
;
4581 struct elf_dyn_relocs
**rel_head
;
4583 rel_head
= &ppc_elf_hash_entry (h
)->dyn_relocs
;
4585 if (p
== NULL
|| p
->sec
!= sec
)
4587 p
= bfd_alloc (htab
->elf
.dynobj
, sizeof *p
);
4590 p
->next
= *rel_head
;
4597 if (!must_be_dyn_reloc (info
, r_type
))
4602 /* Track dynamic relocs needed for local syms too.
4603 We really need local syms available to do this
4605 struct ppc_dyn_relocs
*p
;
4606 struct ppc_dyn_relocs
**rel_head
;
4607 bfd_boolean is_ifunc
;
4610 Elf_Internal_Sym
*isym
;
4612 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
4617 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
4621 vpp
= &elf_section_data (s
)->local_dynrel
;
4622 rel_head
= (struct ppc_dyn_relocs
**) vpp
;
4623 is_ifunc
= ELF_ST_TYPE (isym
->st_info
) == STT_GNU_IFUNC
;
4625 if (p
!= NULL
&& p
->sec
== sec
&& p
->ifunc
!= is_ifunc
)
4627 if (p
== NULL
|| p
->sec
!= sec
|| p
->ifunc
!= is_ifunc
)
4629 p
= bfd_alloc (htab
->elf
.dynobj
, sizeof *p
);
4632 p
->next
= *rel_head
;
4635 p
->ifunc
= is_ifunc
;
4649 /* Warn for conflicting Tag_GNU_Power_ABI_FP attributes between IBFD
4650 and OBFD, and merge non-conflicting ones. */
4652 _bfd_elf_ppc_merge_fp_attributes (bfd
*ibfd
, struct bfd_link_info
*info
)
4654 bfd
*obfd
= info
->output_bfd
;
4655 obj_attribute
*in_attr
, *in_attrs
;
4656 obj_attribute
*out_attr
, *out_attrs
;
4658 in_attrs
= elf_known_obj_attributes (ibfd
)[OBJ_ATTR_GNU
];
4659 out_attrs
= elf_known_obj_attributes (obfd
)[OBJ_ATTR_GNU
];
4661 in_attr
= &in_attrs
[Tag_GNU_Power_ABI_FP
];
4662 out_attr
= &out_attrs
[Tag_GNU_Power_ABI_FP
];
4664 if (in_attr
->i
!= out_attr
->i
)
4666 int in_fp
= in_attr
->i
& 3;
4667 int out_fp
= out_attr
->i
& 3;
4671 else if (out_fp
== 0)
4674 out_attr
->i
^= in_fp
;
4676 else if (out_fp
!= 2 && in_fp
== 2)
4678 /* xgettext:c-format */
4679 (_("Warning: %B uses hard float, %B uses soft float"), obfd
, ibfd
);
4680 else if (out_fp
== 2 && in_fp
!= 2)
4682 /* xgettext:c-format */
4683 (_("Warning: %B uses hard float, %B uses soft float"), ibfd
, obfd
);
4684 else if (out_fp
== 1 && in_fp
== 3)
4686 /* xgettext:c-format */
4687 (_("Warning: %B uses double-precision hard float, "
4688 "%B uses single-precision hard float"), obfd
, ibfd
);
4689 else if (out_fp
== 3 && in_fp
== 1)
4691 /* xgettext:c-format */
4692 (_("Warning: %B uses double-precision hard float, "
4693 "%B uses single-precision hard float"), ibfd
, obfd
);
4695 in_fp
= in_attr
->i
& 0xc;
4696 out_fp
= out_attr
->i
& 0xc;
4699 else if (out_fp
== 0)
4702 out_attr
->i
^= in_fp
;
4704 else if (out_fp
!= 2 * 4 && in_fp
== 2 * 4)
4706 /* xgettext:c-format */
4707 (_("Warning: %B uses 64-bit long double, "
4708 "%B uses 128-bit long double"), ibfd
, obfd
);
4709 else if (in_fp
!= 2 * 4 && out_fp
== 2 * 4)
4711 /* xgettext:c-format */
4712 (_("Warning: %B uses 64-bit long double, "
4713 "%B uses 128-bit long double"), obfd
, ibfd
);
4714 else if (out_fp
== 1 * 4 && in_fp
== 3 * 4)
4716 /* xgettext:c-format */
4717 (_("Warning: %B uses IBM long double, "
4718 "%B uses IEEE long double"), ibfd
, obfd
);
4719 else if (out_fp
== 3 * 4 && in_fp
== 1 * 4)
4721 /* xgettext:c-format */
4722 (_("Warning: %B uses IBM long double, "
4723 "%B uses IEEE long double"), obfd
, ibfd
);
4727 /* Merge object attributes from IBFD into OBFD. Warn if
4728 there are conflicting attributes. */
4730 ppc_elf_merge_obj_attributes (bfd
*ibfd
, struct bfd_link_info
*info
)
4733 obj_attribute
*in_attr
, *in_attrs
;
4734 obj_attribute
*out_attr
, *out_attrs
;
4736 _bfd_elf_ppc_merge_fp_attributes (ibfd
, info
);
4738 obfd
= info
->output_bfd
;
4739 in_attrs
= elf_known_obj_attributes (ibfd
)[OBJ_ATTR_GNU
];
4740 out_attrs
= elf_known_obj_attributes (obfd
)[OBJ_ATTR_GNU
];
4742 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4743 merge non-conflicting ones. */
4744 in_attr
= &in_attrs
[Tag_GNU_Power_ABI_Vector
];
4745 out_attr
= &out_attrs
[Tag_GNU_Power_ABI_Vector
];
4746 if (in_attr
->i
!= out_attr
->i
)
4748 int in_vec
= in_attr
->i
& 3;
4749 int out_vec
= out_attr
->i
& 3;
4753 else if (out_vec
== 0)
4756 out_attr
->i
= in_vec
;
4758 /* For now, allow generic to transition to AltiVec or SPE
4759 without a warning. If GCC marked files with their stack
4760 alignment and used don't-care markings for files which are
4761 not affected by the vector ABI, we could warn about this
4763 else if (in_vec
== 1)
4765 else if (out_vec
== 1)
4768 out_attr
->i
= in_vec
;
4770 else if (out_vec
< in_vec
)
4772 /* xgettext:c-format */
4773 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4775 else if (out_vec
> in_vec
)
4777 /* xgettext:c-format */
4778 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4782 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4783 and merge non-conflicting ones. */
4784 in_attr
= &in_attrs
[Tag_GNU_Power_ABI_Struct_Return
];
4785 out_attr
= &out_attrs
[Tag_GNU_Power_ABI_Struct_Return
];
4786 if (in_attr
->i
!= out_attr
->i
)
4788 int in_struct
= in_attr
->i
& 3;
4789 int out_struct
= out_attr
->i
& 3;
4791 if (in_struct
== 0 || in_struct
== 3)
4793 else if (out_struct
== 0)
4796 out_attr
->i
= in_struct
;
4798 else if (out_struct
< in_struct
)
4800 /* xgettext:c-format */
4801 (_("Warning: %B uses r3/r4 for small structure returns, "
4802 "%B uses memory"), obfd
, ibfd
);
4803 else if (out_struct
> in_struct
)
4805 /* xgettext:c-format */
4806 (_("Warning: %B uses r3/r4 for small structure returns, "
4807 "%B uses memory"), ibfd
, obfd
);
4810 /* Merge Tag_compatibility attributes and any common GNU ones. */
4811 _bfd_elf_merge_object_attributes (ibfd
, info
);
4816 /* Merge backend specific data from an object file to the output
4817 object file when linking. */
4820 ppc_elf_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
4822 bfd
*obfd
= info
->output_bfd
;
4827 if (!is_ppc_elf (ibfd
) || !is_ppc_elf (obfd
))
4830 /* Check if we have the same endianness. */
4831 if (! _bfd_generic_verify_endian_match (ibfd
, info
))
4834 if (!ppc_elf_merge_obj_attributes (ibfd
, info
))
4837 new_flags
= elf_elfheader (ibfd
)->e_flags
;
4838 old_flags
= elf_elfheader (obfd
)->e_flags
;
4839 if (!elf_flags_init (obfd
))
4841 /* First call, no flags set. */
4842 elf_flags_init (obfd
) = TRUE
;
4843 elf_elfheader (obfd
)->e_flags
= new_flags
;
4846 /* Compatible flags are ok. */
4847 else if (new_flags
== old_flags
)
4850 /* Incompatible flags. */
4853 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4854 to be linked with either. */
4856 if ((new_flags
& EF_PPC_RELOCATABLE
) != 0
4857 && (old_flags
& (EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB
)) == 0)
4861 (_("%B: compiled with -mrelocatable and linked with "
4862 "modules compiled normally"), ibfd
);
4864 else if ((new_flags
& (EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB
)) == 0
4865 && (old_flags
& EF_PPC_RELOCATABLE
) != 0)
4869 (_("%B: compiled normally and linked with "
4870 "modules compiled with -mrelocatable"), ibfd
);
4873 /* The output is -mrelocatable-lib iff both the input files are. */
4874 if (! (new_flags
& EF_PPC_RELOCATABLE_LIB
))
4875 elf_elfheader (obfd
)->e_flags
&= ~EF_PPC_RELOCATABLE_LIB
;
4877 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4878 but each input file is either -mrelocatable or -mrelocatable-lib. */
4879 if (! (elf_elfheader (obfd
)->e_flags
& EF_PPC_RELOCATABLE_LIB
)
4880 && (new_flags
& (EF_PPC_RELOCATABLE_LIB
| EF_PPC_RELOCATABLE
))
4881 && (old_flags
& (EF_PPC_RELOCATABLE_LIB
| EF_PPC_RELOCATABLE
)))
4882 elf_elfheader (obfd
)->e_flags
|= EF_PPC_RELOCATABLE
;
4884 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4885 any module uses it. */
4886 elf_elfheader (obfd
)->e_flags
|= (new_flags
& EF_PPC_EMB
);
4888 new_flags
&= ~(EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB
| EF_PPC_EMB
);
4889 old_flags
&= ~(EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB
| EF_PPC_EMB
);
4891 /* Warn about any other mismatches. */
4892 if (new_flags
!= old_flags
)
4896 /* xgettext:c-format */
4897 (_("%B: uses different e_flags (0x%lx) fields "
4898 "than previous modules (0x%lx)"),
4899 ibfd
, (long) new_flags
, (long) old_flags
);
4904 bfd_set_error (bfd_error_bad_value
);
4913 ppc_elf_vle_split16 (bfd
*input_bfd
,
4914 asection
*input_section
,
4915 unsigned long offset
,
4918 split16_format_type split16_format
,
4921 unsigned int insn
, opcode
, top5
;
4923 insn
= bfd_get_32 (input_bfd
, loc
);
4924 opcode
= insn
& 0xfc00f800;
4925 if (opcode
== E_OR2I_INSN
4926 || opcode
== E_AND2I_DOT_INSN
4927 || opcode
== E_OR2IS_INSN
4928 || opcode
== E_LIS_INSN
4929 || opcode
== E_AND2IS_DOT_INSN
)
4931 if (split16_format
!= split16a_type
)
4934 split16_format
= split16a_type
;
4937 /* xgettext:c-format */
4938 (_("%B(%A+0x%lx): expected 16A style relocation on 0x%08x insn"),
4939 input_bfd
, input_section
, offset
, opcode
);
4942 else if (opcode
== E_ADD2I_DOT_INSN
4943 || opcode
== E_ADD2IS_INSN
4944 || opcode
== E_CMP16I_INSN
4945 || opcode
== E_MULL2I_INSN
4946 || opcode
== E_CMPL16I_INSN
4947 || opcode
== E_CMPH16I_INSN
4948 || opcode
== E_CMPHL16I_INSN
)
4950 if (split16_format
!= split16d_type
)
4953 split16_format
= split16d_type
;
4956 /* xgettext:c-format */
4957 (_("%B(%A+0x%lx): expected 16D style relocation on 0x%08x insn"),
4958 input_bfd
, input_section
, offset
, opcode
);
4961 top5
= value
& 0xf800;
4962 top5
= top5
<< (split16_format
== split16a_type
? 5 : 10);
4963 insn
&= (split16_format
== split16a_type
? ~0x1f07ff : ~0x3e007ff);
4965 insn
|= value
& 0x7ff;
4966 bfd_put_32 (input_bfd
, insn
, loc
);
4969 /* Choose which PLT scheme to use, and set .plt flags appropriately.
4970 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4972 ppc_elf_select_plt_layout (bfd
*output_bfd ATTRIBUTE_UNUSED
,
4973 struct bfd_link_info
*info
)
4975 struct ppc_elf_link_hash_table
*htab
;
4978 htab
= ppc_elf_hash_table (info
);
4980 if (htab
->plt_type
== PLT_UNSET
)
4982 struct elf_link_hash_entry
*h
;
4984 if (htab
->params
->plt_style
== PLT_OLD
)
4985 htab
->plt_type
= PLT_OLD
;
4986 else if (bfd_link_pic (info
)
4987 && htab
->elf
.dynamic_sections_created
4988 && (h
= elf_link_hash_lookup (&htab
->elf
, "_mcount",
4989 FALSE
, FALSE
, TRUE
)) != NULL
4990 && (h
->type
== STT_FUNC
4993 && !(SYMBOL_CALLS_LOCAL (info
, h
)
4994 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
4995 && h
->root
.type
== bfd_link_hash_undefweak
)))
4997 /* Profiling of shared libs (and pies) is not supported with
4998 secure plt, because ppc32 does profiling before a
4999 function prologue and a secure plt pic call stubs needs
5000 r30 to be set up. */
5001 htab
->plt_type
= PLT_OLD
;
5006 enum ppc_elf_plt_type plt_type
= htab
->params
->plt_style
;
5008 /* Look through the reloc flags left by ppc_elf_check_relocs.
5009 Use the old style bss plt if a file makes plt calls
5010 without using the new relocs, and if ld isn't given
5011 --secure-plt and we never see REL16 relocs. */
5012 if (plt_type
== PLT_UNSET
)
5014 for (ibfd
= info
->input_bfds
; ibfd
; ibfd
= ibfd
->link
.next
)
5015 if (is_ppc_elf (ibfd
))
5017 if (ppc_elf_tdata (ibfd
)->has_rel16
)
5019 else if (ppc_elf_tdata (ibfd
)->makes_plt_call
)
5022 htab
->old_bfd
= ibfd
;
5026 htab
->plt_type
= plt_type
;
5029 if (htab
->plt_type
== PLT_OLD
&& htab
->params
->plt_style
== PLT_NEW
)
5031 if (htab
->old_bfd
!= NULL
)
5032 info
->callbacks
->einfo (_("%P: bss-plt forced due to %B\n"),
5035 info
->callbacks
->einfo (_("%P: bss-plt forced by profiling\n"));
5038 BFD_ASSERT (htab
->plt_type
!= PLT_VXWORKS
);
5040 if (htab
->plt_type
== PLT_NEW
)
5042 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
5043 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
5045 /* The new PLT is a loaded section. */
5046 if (htab
->elf
.splt
!= NULL
5047 && !bfd_set_section_flags (htab
->elf
.dynobj
, htab
->elf
.splt
, flags
))
5050 /* The new GOT is not executable. */
5051 if (htab
->elf
.sgot
!= NULL
5052 && !bfd_set_section_flags (htab
->elf
.dynobj
, htab
->elf
.sgot
, flags
))
5057 /* Stop an unused .glink section from affecting .text alignment. */
5058 if (htab
->glink
!= NULL
5059 && !bfd_set_section_alignment (htab
->elf
.dynobj
, htab
->glink
, 0))
5062 return htab
->plt_type
== PLT_NEW
;
5065 /* Return the section that should be marked against GC for a given
5069 ppc_elf_gc_mark_hook (asection
*sec
,
5070 struct bfd_link_info
*info
,
5071 Elf_Internal_Rela
*rel
,
5072 struct elf_link_hash_entry
*h
,
5073 Elf_Internal_Sym
*sym
)
5076 switch (ELF32_R_TYPE (rel
->r_info
))
5078 case R_PPC_GNU_VTINHERIT
:
5079 case R_PPC_GNU_VTENTRY
:
5083 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
5086 /* Update the got, plt and dynamic reloc reference counts for the
5087 section being removed. */
5090 ppc_elf_gc_sweep_hook (bfd
*abfd
,
5091 struct bfd_link_info
*info
,
5093 const Elf_Internal_Rela
*relocs
)
5095 struct ppc_elf_link_hash_table
*htab
;
5096 Elf_Internal_Shdr
*symtab_hdr
;
5097 struct elf_link_hash_entry
**sym_hashes
;
5098 bfd_signed_vma
*local_got_refcounts
;
5099 const Elf_Internal_Rela
*rel
, *relend
;
5102 if (bfd_link_relocatable (info
))
5105 if ((sec
->flags
& SEC_ALLOC
) == 0)
5108 elf_section_data (sec
)->local_dynrel
= NULL
;
5110 htab
= ppc_elf_hash_table (info
);
5111 symtab_hdr
= &elf_symtab_hdr (abfd
);
5112 sym_hashes
= elf_sym_hashes (abfd
);
5113 local_got_refcounts
= elf_local_got_refcounts (abfd
);
5114 got2
= bfd_get_section_by_name (abfd
, ".got2");
5116 relend
= relocs
+ sec
->reloc_count
;
5117 for (rel
= relocs
; rel
< relend
; rel
++)
5119 unsigned long r_symndx
;
5120 enum elf_ppc_reloc_type r_type
;
5121 struct elf_link_hash_entry
*h
= NULL
;
5123 r_symndx
= ELF32_R_SYM (rel
->r_info
);
5124 if (r_symndx
>= symtab_hdr
->sh_info
)
5126 struct elf_dyn_relocs
**pp
, *p
;
5127 struct ppc_elf_link_hash_entry
*eh
;
5129 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
5130 while (h
->root
.type
== bfd_link_hash_indirect
5131 || h
->root
.type
== bfd_link_hash_warning
)
5132 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5133 eh
= (struct ppc_elf_link_hash_entry
*) h
;
5135 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
5138 /* Everything must go for SEC. */
5144 r_type
= ELF32_R_TYPE (rel
->r_info
);
5145 if (!htab
->is_vxworks
5147 && local_got_refcounts
!= NULL
5148 && (!bfd_link_pic (info
)
5149 || is_branch_reloc (r_type
)))
5151 struct plt_entry
**local_plt
= (struct plt_entry
**)
5152 (local_got_refcounts
+ symtab_hdr
->sh_info
);
5153 char *local_got_tls_masks
= (char *)
5154 (local_plt
+ symtab_hdr
->sh_info
);
5155 if ((local_got_tls_masks
[r_symndx
] & PLT_IFUNC
) != 0)
5157 struct plt_entry
**ifunc
= local_plt
+ r_symndx
;
5159 struct plt_entry
*ent
;
5161 if (r_type
== R_PPC_PLTREL24
&& bfd_link_pic (info
))
5162 addend
= rel
->r_addend
;
5163 ent
= find_plt_ent (ifunc
, got2
, addend
);
5164 if (ent
->plt
.refcount
> 0)
5165 ent
->plt
.refcount
-= 1;
5172 case R_PPC_GOT_TLSLD16
:
5173 case R_PPC_GOT_TLSLD16_LO
:
5174 case R_PPC_GOT_TLSLD16_HI
:
5175 case R_PPC_GOT_TLSLD16_HA
:
5176 case R_PPC_GOT_TLSGD16
:
5177 case R_PPC_GOT_TLSGD16_LO
:
5178 case R_PPC_GOT_TLSGD16_HI
:
5179 case R_PPC_GOT_TLSGD16_HA
:
5180 case R_PPC_GOT_TPREL16
:
5181 case R_PPC_GOT_TPREL16_LO
:
5182 case R_PPC_GOT_TPREL16_HI
:
5183 case R_PPC_GOT_TPREL16_HA
:
5184 case R_PPC_GOT_DTPREL16
:
5185 case R_PPC_GOT_DTPREL16_LO
:
5186 case R_PPC_GOT_DTPREL16_HI
:
5187 case R_PPC_GOT_DTPREL16_HA
:
5189 case R_PPC_GOT16_LO
:
5190 case R_PPC_GOT16_HI
:
5191 case R_PPC_GOT16_HA
:
5194 if (h
->got
.refcount
> 0)
5196 if (!bfd_link_pic (info
))
5198 struct plt_entry
*ent
;
5200 ent
= find_plt_ent (&h
->plt
.plist
, NULL
, 0);
5201 if (ent
!= NULL
&& ent
->plt
.refcount
> 0)
5202 ent
->plt
.refcount
-= 1;
5205 else if (local_got_refcounts
!= NULL
)
5207 if (local_got_refcounts
[r_symndx
] > 0)
5208 local_got_refcounts
[r_symndx
]--;
5214 case R_PPC_REL14_BRTAKEN
:
5215 case R_PPC_REL14_BRNTAKEN
:
5217 if (h
== NULL
|| h
== htab
->elf
.hgot
)
5224 case R_PPC_ADDR16_LO
:
5225 case R_PPC_ADDR16_HI
:
5226 case R_PPC_ADDR16_HA
:
5228 case R_PPC_ADDR14_BRTAKEN
:
5229 case R_PPC_ADDR14_BRNTAKEN
:
5232 if (bfd_link_pic (info
))
5237 case R_PPC_PLTREL24
:
5238 case R_PPC_PLTREL32
:
5239 case R_PPC_PLT16_LO
:
5240 case R_PPC_PLT16_HI
:
5241 case R_PPC_PLT16_HA
:
5245 struct plt_entry
*ent
;
5247 if (r_type
== R_PPC_PLTREL24
&& bfd_link_pic (info
))
5248 addend
= rel
->r_addend
;
5249 ent
= find_plt_ent (&h
->plt
.plist
, got2
, addend
);
5250 if (ent
!= NULL
&& ent
->plt
.refcount
> 0)
5251 ent
->plt
.refcount
-= 1;
5262 /* Set plt output section type, htab->tls_get_addr, and call the
5263 generic ELF tls_setup function. */
5266 ppc_elf_tls_setup (bfd
*obfd
, struct bfd_link_info
*info
)
5268 struct ppc_elf_link_hash_table
*htab
;
5270 htab
= ppc_elf_hash_table (info
);
5271 htab
->tls_get_addr
= elf_link_hash_lookup (&htab
->elf
, "__tls_get_addr",
5272 FALSE
, FALSE
, TRUE
);
5273 if (htab
->plt_type
!= PLT_NEW
)
5274 htab
->params
->no_tls_get_addr_opt
= TRUE
;
5276 if (!htab
->params
->no_tls_get_addr_opt
)
5278 struct elf_link_hash_entry
*opt
, *tga
;
5279 opt
= elf_link_hash_lookup (&htab
->elf
, "__tls_get_addr_opt",
5280 FALSE
, FALSE
, TRUE
);
5282 && (opt
->root
.type
== bfd_link_hash_defined
5283 || opt
->root
.type
== bfd_link_hash_defweak
))
5285 /* If glibc supports an optimized __tls_get_addr call stub,
5286 signalled by the presence of __tls_get_addr_opt, and we'll
5287 be calling __tls_get_addr via a plt call stub, then
5288 make __tls_get_addr point to __tls_get_addr_opt. */
5289 tga
= htab
->tls_get_addr
;
5290 if (htab
->elf
.dynamic_sections_created
5292 && (tga
->type
== STT_FUNC
5294 && !(SYMBOL_CALLS_LOCAL (info
, tga
)
5295 || (ELF_ST_VISIBILITY (tga
->other
) != STV_DEFAULT
5296 && tga
->root
.type
== bfd_link_hash_undefweak
)))
5298 struct plt_entry
*ent
;
5299 for (ent
= tga
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
5300 if (ent
->plt
.refcount
> 0)
5304 tga
->root
.type
= bfd_link_hash_indirect
;
5305 tga
->root
.u
.i
.link
= &opt
->root
;
5306 ppc_elf_copy_indirect_symbol (info
, opt
, tga
);
5308 if (opt
->dynindx
!= -1)
5310 /* Use __tls_get_addr_opt in dynamic relocations. */
5312 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
5314 if (!bfd_elf_link_record_dynamic_symbol (info
, opt
))
5317 htab
->tls_get_addr
= opt
;
5322 htab
->params
->no_tls_get_addr_opt
= TRUE
;
5324 if (htab
->plt_type
== PLT_NEW
5325 && htab
->elf
.splt
!= NULL
5326 && htab
->elf
.splt
->output_section
!= NULL
)
5328 elf_section_type (htab
->elf
.splt
->output_section
) = SHT_PROGBITS
;
5329 elf_section_flags (htab
->elf
.splt
->output_section
) = SHF_ALLOC
+ SHF_WRITE
;
5332 return _bfd_elf_tls_setup (obfd
, info
);
5335 /* Return TRUE iff REL is a branch reloc with a global symbol matching
5339 branch_reloc_hash_match (const bfd
*ibfd
,
5340 const Elf_Internal_Rela
*rel
,
5341 const struct elf_link_hash_entry
*hash
)
5343 Elf_Internal_Shdr
*symtab_hdr
= &elf_symtab_hdr (ibfd
);
5344 enum elf_ppc_reloc_type r_type
= ELF32_R_TYPE (rel
->r_info
);
5345 unsigned int r_symndx
= ELF32_R_SYM (rel
->r_info
);
5347 if (r_symndx
>= symtab_hdr
->sh_info
&& is_branch_reloc (r_type
))
5349 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (ibfd
);
5350 struct elf_link_hash_entry
*h
;
5352 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
5353 while (h
->root
.type
== bfd_link_hash_indirect
5354 || h
->root
.type
== bfd_link_hash_warning
)
5355 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5362 /* Run through all the TLS relocs looking for optimization
5366 ppc_elf_tls_optimize (bfd
*obfd ATTRIBUTE_UNUSED
,
5367 struct bfd_link_info
*info
)
5371 struct ppc_elf_link_hash_table
*htab
;
5374 if (!bfd_link_executable (info
))
5377 htab
= ppc_elf_hash_table (info
);
5381 /* Make two passes through the relocs. First time check that tls
5382 relocs involved in setting up a tls_get_addr call are indeed
5383 followed by such a call. If they are not, don't do any tls
5384 optimization. On the second pass twiddle tls_mask flags to
5385 notify relocate_section that optimization can be done, and
5386 adjust got and plt refcounts. */
5387 for (pass
= 0; pass
< 2; ++pass
)
5388 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
5390 Elf_Internal_Sym
*locsyms
= NULL
;
5391 Elf_Internal_Shdr
*symtab_hdr
= &elf_symtab_hdr (ibfd
);
5392 asection
*got2
= bfd_get_section_by_name (ibfd
, ".got2");
5394 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
5395 if (sec
->has_tls_reloc
&& !bfd_is_abs_section (sec
->output_section
))
5397 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
5398 int expecting_tls_get_addr
= 0;
5400 /* Read the relocations. */
5401 relstart
= _bfd_elf_link_read_relocs (ibfd
, sec
, NULL
, NULL
,
5403 if (relstart
== NULL
)
5406 relend
= relstart
+ sec
->reloc_count
;
5407 for (rel
= relstart
; rel
< relend
; rel
++)
5409 enum elf_ppc_reloc_type r_type
;
5410 unsigned long r_symndx
;
5411 struct elf_link_hash_entry
*h
= NULL
;
5413 char tls_set
, tls_clear
;
5414 bfd_boolean is_local
;
5415 bfd_signed_vma
*got_count
;
5417 r_symndx
= ELF32_R_SYM (rel
->r_info
);
5418 if (r_symndx
>= symtab_hdr
->sh_info
)
5420 struct elf_link_hash_entry
**sym_hashes
;
5422 sym_hashes
= elf_sym_hashes (ibfd
);
5423 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
5424 while (h
->root
.type
== bfd_link_hash_indirect
5425 || h
->root
.type
== bfd_link_hash_warning
)
5426 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5434 r_type
= ELF32_R_TYPE (rel
->r_info
);
5435 /* If this section has old-style __tls_get_addr calls
5436 without marker relocs, then check that each
5437 __tls_get_addr call reloc is preceded by a reloc
5438 that conceivably belongs to the __tls_get_addr arg
5439 setup insn. If we don't find matching arg setup
5440 relocs, don't do any tls optimization. */
5442 && sec
->has_tls_get_addr_call
5444 && h
== htab
->tls_get_addr
5445 && !expecting_tls_get_addr
5446 && is_branch_reloc (r_type
))
5448 info
->callbacks
->minfo ("%H __tls_get_addr lost arg, "
5449 "TLS optimization disabled\n",
5450 ibfd
, sec
, rel
->r_offset
);
5451 if (elf_section_data (sec
)->relocs
!= relstart
)
5456 expecting_tls_get_addr
= 0;
5459 case R_PPC_GOT_TLSLD16
:
5460 case R_PPC_GOT_TLSLD16_LO
:
5461 expecting_tls_get_addr
= 1;
5464 case R_PPC_GOT_TLSLD16_HI
:
5465 case R_PPC_GOT_TLSLD16_HA
:
5466 /* These relocs should never be against a symbol
5467 defined in a shared lib. Leave them alone if
5468 that turns out to be the case. */
5477 case R_PPC_GOT_TLSGD16
:
5478 case R_PPC_GOT_TLSGD16_LO
:
5479 expecting_tls_get_addr
= 1;
5482 case R_PPC_GOT_TLSGD16_HI
:
5483 case R_PPC_GOT_TLSGD16_HA
:
5489 tls_set
= TLS_TLS
| TLS_TPRELGD
;
5493 case R_PPC_GOT_TPREL16
:
5494 case R_PPC_GOT_TPREL16_LO
:
5495 case R_PPC_GOT_TPREL16_HI
:
5496 case R_PPC_GOT_TPREL16_HA
:
5501 tls_clear
= TLS_TPREL
;
5509 expecting_tls_get_addr
= 2;
5520 if (!expecting_tls_get_addr
5521 || (expecting_tls_get_addr
== 1
5522 && !sec
->has_tls_get_addr_call
))
5525 if (rel
+ 1 < relend
5526 && branch_reloc_hash_match (ibfd
, rel
+ 1,
5527 htab
->tls_get_addr
))
5530 /* Uh oh, we didn't find the expected call. We
5531 could just mark this symbol to exclude it
5532 from tls optimization but it's safer to skip
5533 the entire optimization. */
5534 info
->callbacks
->minfo (_("%H arg lost __tls_get_addr, "
5535 "TLS optimization disabled\n"),
5536 ibfd
, sec
, rel
->r_offset
);
5537 if (elf_section_data (sec
)->relocs
!= relstart
)
5542 if (expecting_tls_get_addr
)
5544 struct plt_entry
*ent
;
5547 if (bfd_link_pic (info
)
5548 && ELF32_R_TYPE (rel
[1].r_info
) == R_PPC_PLTREL24
)
5549 addend
= rel
[1].r_addend
;
5550 ent
= find_plt_ent (&htab
->tls_get_addr
->plt
.plist
,
5552 if (ent
!= NULL
&& ent
->plt
.refcount
> 0)
5553 ent
->plt
.refcount
-= 1;
5555 if (expecting_tls_get_addr
== 2)
5561 tls_mask
= &ppc_elf_hash_entry (h
)->tls_mask
;
5562 got_count
= &h
->got
.refcount
;
5566 bfd_signed_vma
*lgot_refs
;
5567 struct plt_entry
**local_plt
;
5570 if (locsyms
== NULL
)
5572 locsyms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
5573 if (locsyms
== NULL
)
5574 locsyms
= bfd_elf_get_elf_syms (ibfd
, symtab_hdr
,
5575 symtab_hdr
->sh_info
,
5576 0, NULL
, NULL
, NULL
);
5577 if (locsyms
== NULL
)
5579 if (elf_section_data (sec
)->relocs
!= relstart
)
5584 lgot_refs
= elf_local_got_refcounts (ibfd
);
5585 if (lgot_refs
== NULL
)
5587 local_plt
= (struct plt_entry
**)
5588 (lgot_refs
+ symtab_hdr
->sh_info
);
5589 lgot_masks
= (char *) (local_plt
+ symtab_hdr
->sh_info
);
5590 tls_mask
= &lgot_masks
[r_symndx
];
5591 got_count
= &lgot_refs
[r_symndx
];
5596 /* We managed to get rid of a got entry. */
5601 *tls_mask
|= tls_set
;
5602 *tls_mask
&= ~tls_clear
;
5605 if (elf_section_data (sec
)->relocs
!= relstart
)
5610 && (symtab_hdr
->contents
!= (unsigned char *) locsyms
))
5612 if (!info
->keep_memory
)
5615 symtab_hdr
->contents
= (unsigned char *) locsyms
;
5621 /* Return true if we have dynamic relocs that apply to read-only sections. */
5624 readonly_dynrelocs (struct elf_link_hash_entry
*h
)
5626 struct elf_dyn_relocs
*p
;
5628 for (p
= ppc_elf_hash_entry (h
)->dyn_relocs
; p
!= NULL
; p
= p
->next
)
5630 asection
*s
= p
->sec
->output_section
;
5633 && ((s
->flags
& (SEC_READONLY
| SEC_ALLOC
))
5634 == (SEC_READONLY
| SEC_ALLOC
)))
5640 /* Adjust a symbol defined by a dynamic object and referenced by a
5641 regular object. The current definition is in some section of the
5642 dynamic object, but we're not including those sections. We have to
5643 change the definition to something the rest of the link can
5647 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
5648 struct elf_link_hash_entry
*h
)
5650 struct ppc_elf_link_hash_table
*htab
;
5654 fprintf (stderr
, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5655 h
->root
.root
.string
);
5658 /* Make sure we know what is going on here. */
5659 htab
= ppc_elf_hash_table (info
);
5660 BFD_ASSERT (htab
->elf
.dynobj
!= NULL
5662 || h
->type
== STT_GNU_IFUNC
5663 || h
->u
.weakdef
!= NULL
5666 && !h
->def_regular
)));
5668 /* Deal with function syms. */
5669 if (h
->type
== STT_FUNC
5670 || h
->type
== STT_GNU_IFUNC
5673 /* Clear procedure linkage table information for any symbol that
5674 won't need a .plt entry. */
5675 struct plt_entry
*ent
;
5676 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
5677 if (ent
->plt
.refcount
> 0)
5680 || (h
->type
!= STT_GNU_IFUNC
5681 && (SYMBOL_CALLS_LOCAL (info
, h
)
5682 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
5683 && h
->root
.type
== bfd_link_hash_undefweak
))))
5685 /* A PLT entry is not required/allowed when:
5687 1. We are not using ld.so; because then the PLT entry
5688 can't be set up, so we can't use one. In this case,
5689 ppc_elf_adjust_dynamic_symbol won't even be called.
5691 2. GC has rendered the entry unused.
5693 3. We know for certain that a call to this symbol
5694 will go to this object, or will remain undefined. */
5695 h
->plt
.plist
= NULL
;
5697 h
->pointer_equality_needed
= 0;
5701 /* Taking a function's address in a read/write section
5702 doesn't require us to define the function symbol in the
5703 executable on a plt call stub. A dynamic reloc can
5704 be used instead, giving better runtime performance.
5705 (Calls via that function pointer don't need to bounce
5706 through the plt call stub.) Similarly, use a dynamic
5707 reloc for a weak reference when possible, allowing the
5708 resolution of the symbol to be set at load time rather
5710 if ((h
->pointer_equality_needed
5711 || (!h
->ref_regular_nonweak
&& h
->non_got_ref
))
5712 && !htab
->is_vxworks
5713 && !ppc_elf_hash_entry (h
)->has_sda_refs
5714 && !readonly_dynrelocs (h
))
5716 h
->pointer_equality_needed
= 0;
5717 /* After adjust_dynamic_symbol, non_got_ref set in the
5718 non-pic case means that dyn_relocs for this symbol
5719 should be discarded. */
5723 h
->protected_def
= 0;
5727 h
->plt
.plist
= NULL
;
5729 /* If this is a weak symbol, and there is a real definition, the
5730 processor independent code will have arranged for us to see the
5731 real definition first, and we can just use the same value. */
5732 if (h
->u
.weakdef
!= NULL
)
5734 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
5735 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
5736 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
5737 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
5738 if (ELIMINATE_COPY_RELOCS
)
5739 h
->non_got_ref
= h
->u
.weakdef
->non_got_ref
;
5743 /* This is a reference to a symbol defined by a dynamic object which
5744 is not a function. */
5746 /* If we are creating a shared library, we must presume that the
5747 only references to the symbol are via the global offset table.
5748 For such cases we need not do anything here; the relocations will
5749 be handled correctly by relocate_section. */
5750 if (bfd_link_pic (info
))
5752 h
->protected_def
= 0;
5756 /* If there are no references to this symbol that do not use the
5757 GOT, we don't need to generate a copy reloc. */
5758 if (!h
->non_got_ref
)
5760 h
->protected_def
= 0;
5764 /* Protected variables do not work with .dynbss. The copy in
5765 .dynbss won't be used by the shared library with the protected
5766 definition for the variable. Editing to PIC, or text relocations
5767 are preferable to an incorrect program. */
5768 if (h
->protected_def
)
5770 if (ELIMINATE_COPY_RELOCS
5771 && ppc_elf_hash_entry (h
)->has_addr16_ha
5772 && ppc_elf_hash_entry (h
)->has_addr16_lo
5773 && htab
->params
->pic_fixup
== 0
5774 && info
->disable_target_specific_optimizations
<= 1)
5775 htab
->params
->pic_fixup
= 1;
5780 /* If -z nocopyreloc was given, we won't generate them either. */
5781 if (info
->nocopyreloc
)
5787 /* If we didn't find any dynamic relocs in read-only sections, then
5788 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5789 We can't do this if there are any small data relocations. This
5790 doesn't work on VxWorks, where we can not have dynamic
5791 relocations (other than copy and jump slot relocations) in an
5793 if (ELIMINATE_COPY_RELOCS
5794 && !ppc_elf_hash_entry (h
)->has_sda_refs
5795 && !htab
->is_vxworks
5797 && !readonly_dynrelocs (h
))
5803 /* We must allocate the symbol in our .dynbss section, which will
5804 become part of the .bss section of the executable. There will be
5805 an entry for this symbol in the .dynsym section. The dynamic
5806 object will contain position independent code, so all references
5807 from the dynamic object to this symbol will go through the global
5808 offset table. The dynamic linker will use the .dynsym entry to
5809 determine the address it must put in the global offset table, so
5810 both the dynamic object and the regular object will refer to the
5811 same memory location for the variable.
5813 Of course, if the symbol is referenced using SDAREL relocs, we
5814 must instead allocate it in .sbss. */
5816 if (ppc_elf_hash_entry (h
)->has_sda_refs
)
5818 else if ((h
->root
.u
.def
.section
->flags
& SEC_READONLY
) != 0)
5819 s
= htab
->elf
.sdynrelro
;
5821 s
= htab
->elf
.sdynbss
;
5822 BFD_ASSERT (s
!= NULL
);
5824 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5825 copy the initial value out of the dynamic object and into the
5826 runtime process image. We need to remember the offset into the
5827 .rela.bss section we are going to use. */
5828 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && h
->size
!= 0)
5832 if (ppc_elf_hash_entry (h
)->has_sda_refs
)
5833 srel
= htab
->relsbss
;
5834 else if ((h
->root
.u
.def
.section
->flags
& SEC_READONLY
) != 0)
5835 srel
= htab
->elf
.sreldynrelro
;
5837 srel
= htab
->elf
.srelbss
;
5838 BFD_ASSERT (srel
!= NULL
);
5839 srel
->size
+= sizeof (Elf32_External_Rela
);
5843 return _bfd_elf_adjust_dynamic_copy (info
, h
, s
);
5846 /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5847 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5848 specifying the addend on the plt relocation. For -fpic code, the sym
5849 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5850 xxxxxxxx.got2.plt_pic32.<callee>. */
5853 add_stub_sym (struct plt_entry
*ent
,
5854 struct elf_link_hash_entry
*h
,
5855 struct bfd_link_info
*info
)
5857 struct elf_link_hash_entry
*sh
;
5858 size_t len1
, len2
, len3
;
5861 struct ppc_elf_link_hash_table
*htab
= ppc_elf_hash_table (info
);
5863 if (bfd_link_pic (info
))
5864 stub
= ".plt_pic32.";
5866 stub
= ".plt_call32.";
5868 len1
= strlen (h
->root
.root
.string
);
5869 len2
= strlen (stub
);
5872 len3
= strlen (ent
->sec
->name
);
5873 name
= bfd_malloc (len1
+ len2
+ len3
+ 9);
5876 sprintf (name
, "%08x", (unsigned) ent
->addend
& 0xffffffff);
5878 memcpy (name
+ 8, ent
->sec
->name
, len3
);
5879 memcpy (name
+ 8 + len3
, stub
, len2
);
5880 memcpy (name
+ 8 + len3
+ len2
, h
->root
.root
.string
, len1
+ 1);
5881 sh
= elf_link_hash_lookup (&htab
->elf
, name
, TRUE
, FALSE
, FALSE
);
5884 if (sh
->root
.type
== bfd_link_hash_new
)
5886 sh
->root
.type
= bfd_link_hash_defined
;
5887 sh
->root
.u
.def
.section
= htab
->glink
;
5888 sh
->root
.u
.def
.value
= ent
->glink_offset
;
5889 sh
->ref_regular
= 1;
5890 sh
->def_regular
= 1;
5891 sh
->ref_regular_nonweak
= 1;
5892 sh
->forced_local
= 1;
5894 sh
->root
.linker_def
= 1;
5899 /* Allocate NEED contiguous space in .got, and return the offset.
5900 Handles allocation of the got header when crossing 32k. */
5903 allocate_got (struct ppc_elf_link_hash_table
*htab
, unsigned int need
)
5906 unsigned int max_before_header
;
5908 if (htab
->plt_type
== PLT_VXWORKS
)
5910 where
= htab
->elf
.sgot
->size
;
5911 htab
->elf
.sgot
->size
+= need
;
5915 max_before_header
= htab
->plt_type
== PLT_NEW
? 32768 : 32764;
5916 if (need
<= htab
->got_gap
)
5918 where
= max_before_header
- htab
->got_gap
;
5919 htab
->got_gap
-= need
;
5923 if (htab
->elf
.sgot
->size
+ need
> max_before_header
5924 && htab
->elf
.sgot
->size
<= max_before_header
)
5926 htab
->got_gap
= max_before_header
- htab
->elf
.sgot
->size
;
5927 htab
->elf
.sgot
->size
= max_before_header
+ htab
->got_header_size
;
5929 where
= htab
->elf
.sgot
->size
;
5930 htab
->elf
.sgot
->size
+= need
;
5936 /* If H is undefined weak, make it dynamic if that makes sense. */
5939 ensure_undefweak_dynamic (struct bfd_link_info
*info
,
5940 struct elf_link_hash_entry
*h
)
5942 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
5944 if (htab
->dynamic_sections_created
5945 && h
->root
.type
== bfd_link_hash_undefweak
5948 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
5949 return bfd_elf_link_record_dynamic_symbol (info
, h
);
5953 /* Allocate space in associated reloc sections for dynamic relocs. */
5956 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
5958 struct bfd_link_info
*info
= inf
;
5959 struct ppc_elf_link_hash_entry
*eh
;
5960 struct ppc_elf_link_hash_table
*htab
;
5961 struct elf_dyn_relocs
*p
;
5964 if (h
->root
.type
== bfd_link_hash_indirect
)
5967 htab
= ppc_elf_hash_table (info
);
5968 eh
= (struct ppc_elf_link_hash_entry
*) h
;
5969 if (eh
->elf
.got
.refcount
> 0
5970 || (ELIMINATE_COPY_RELOCS
5971 && !eh
->elf
.def_regular
5972 && eh
->elf
.protected_def
5973 && eh
->has_addr16_ha
5974 && eh
->has_addr16_lo
5975 && htab
->params
->pic_fixup
> 0))
5979 /* Make sure this symbol is output as a dynamic symbol.
5980 Undefined weak syms won't yet be marked as dynamic. */
5981 if (!ensure_undefweak_dynamic (info
, &eh
->elf
))
5985 if ((eh
->tls_mask
& TLS_TLS
) != 0)
5987 if ((eh
->tls_mask
& TLS_LD
) != 0)
5989 if (!eh
->elf
.def_dynamic
)
5990 /* We'll just use htab->tlsld_got.offset. This should
5991 always be the case. It's a little odd if we have
5992 a local dynamic reloc against a non-local symbol. */
5993 htab
->tlsld_got
.refcount
+= 1;
5997 if ((eh
->tls_mask
& TLS_GD
) != 0)
5999 if ((eh
->tls_mask
& (TLS_TPREL
| TLS_TPRELGD
)) != 0)
6001 if ((eh
->tls_mask
& TLS_DTPREL
) != 0)
6007 eh
->elf
.got
.offset
= (bfd_vma
) -1;
6010 eh
->elf
.got
.offset
= allocate_got (htab
, need
);
6011 if ((bfd_link_pic (info
)
6012 || (htab
->elf
.dynamic_sections_created
6013 && eh
->elf
.dynindx
!= -1
6014 && !SYMBOL_REFERENCES_LOCAL (info
, &eh
->elf
)))
6015 && (ELF_ST_VISIBILITY (eh
->elf
.other
) == STV_DEFAULT
6016 || eh
->elf
.root
.type
!= bfd_link_hash_undefweak
))
6018 asection
*rsec
= htab
->elf
.srelgot
;
6020 if (eh
->elf
.type
== STT_GNU_IFUNC
)
6021 rsec
= htab
->elf
.irelplt
;
6022 /* All the entries we allocated need relocs.
6023 Except LD only needs one. */
6024 if ((eh
->tls_mask
& TLS_LD
) != 0
6025 && eh
->elf
.def_dynamic
)
6027 rsec
->size
+= need
* (sizeof (Elf32_External_Rela
) / 4);
6032 eh
->elf
.got
.offset
= (bfd_vma
) -1;
6034 if (!htab
->elf
.dynamic_sections_created
6035 && h
->type
!= STT_GNU_IFUNC
)
6036 eh
->dyn_relocs
= NULL
;
6038 if (eh
->dyn_relocs
== NULL
)
6041 /* In the shared -Bsymbolic case, discard space allocated for
6042 dynamic pc-relative relocs against symbols which turn out to be
6043 defined in regular objects. For the normal shared case, discard
6044 space for relocs that have become local due to symbol visibility
6046 else if (bfd_link_pic (info
))
6048 /* Relocs that use pc_count are those that appear on a call insn,
6049 or certain REL relocs (see must_be_dyn_reloc) that can be
6050 generated via assembly. We want calls to protected symbols to
6051 resolve directly to the function rather than going via the plt.
6052 If people want function pointer comparisons to work as expected
6053 then they should avoid writing weird assembly. */
6054 if (SYMBOL_CALLS_LOCAL (info
, h
))
6056 struct elf_dyn_relocs
**pp
;
6058 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
6060 p
->count
-= p
->pc_count
;
6069 if (htab
->is_vxworks
)
6071 struct elf_dyn_relocs
**pp
;
6073 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
6075 if (strcmp (p
->sec
->output_section
->name
, ".tls_vars") == 0)
6082 /* Discard relocs on undefined symbols that must be local. */
6083 if (eh
->dyn_relocs
!= NULL
6084 && h
->root
.type
== bfd_link_hash_undefined
6085 && (ELF_ST_VISIBILITY (h
->other
) == STV_HIDDEN
6086 || ELF_ST_VISIBILITY (h
->other
) == STV_INTERNAL
))
6087 eh
->dyn_relocs
= NULL
;
6089 /* Also discard relocs on undefined weak syms with non-default
6091 if (eh
->dyn_relocs
!= NULL
6092 && h
->root
.type
== bfd_link_hash_undefweak
)
6094 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
6095 eh
->dyn_relocs
= NULL
;
6097 /* Make sure undefined weak symbols are output as a dynamic
6099 else if (!ensure_undefweak_dynamic (info
, h
))
6103 else if (ELIMINATE_COPY_RELOCS
)
6105 /* For the non-pic case, discard space for relocs against
6106 symbols which turn out to need copy relocs or are not
6110 && !(h
->protected_def
6111 && eh
->has_addr16_ha
6112 && eh
->has_addr16_lo
6113 && htab
->params
->pic_fixup
> 0))
6115 /* Make sure this symbol is output as a dynamic symbol.
6116 Undefined weak syms won't yet be marked as dynamic. */
6117 if (!ensure_undefweak_dynamic (info
, h
))
6120 if (h
->dynindx
== -1)
6121 eh
->dyn_relocs
= NULL
;
6124 eh
->dyn_relocs
= NULL
;
6127 /* Allocate space. */
6128 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
6130 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
6131 if (eh
->elf
.type
== STT_GNU_IFUNC
)
6132 sreloc
= htab
->elf
.irelplt
;
6133 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
6136 /* Handle PLT relocs. Done last, after dynindx has settled. */
6137 dyn
= htab
->elf
.dynamic_sections_created
&& h
->dynindx
!= -1;
6138 if (dyn
|| h
->type
== STT_GNU_IFUNC
)
6140 struct plt_entry
*ent
;
6141 bfd_boolean doneone
= FALSE
;
6142 bfd_vma plt_offset
= 0, glink_offset
= 0;
6144 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6145 if (ent
->plt
.refcount
> 0)
6147 asection
*s
= htab
->elf
.splt
;
6152 if (htab
->plt_type
== PLT_NEW
|| !dyn
)
6156 plt_offset
= s
->size
;
6159 ent
->plt
.offset
= plt_offset
;
6162 if (!doneone
|| bfd_link_pic (info
))
6164 glink_offset
= s
->size
;
6165 s
->size
+= GLINK_ENTRY_SIZE
;
6166 if (h
== htab
->tls_get_addr
6167 && !htab
->params
->no_tls_get_addr_opt
)
6168 s
->size
+= TLS_GET_ADDR_GLINK_SIZE
- GLINK_ENTRY_SIZE
;
6171 && !bfd_link_pic (info
)
6175 h
->root
.u
.def
.section
= s
;
6176 h
->root
.u
.def
.value
= glink_offset
;
6178 ent
->glink_offset
= glink_offset
;
6180 if (htab
->params
->emit_stub_syms
6181 && !add_stub_sym (ent
, h
, info
))
6188 /* If this is the first .plt entry, make room
6189 for the special first entry. */
6191 s
->size
+= htab
->plt_initial_entry_size
;
6193 /* The PowerPC PLT is actually composed of two
6194 parts, the first part is 2 words (for a load
6195 and a jump), and then there is a remaining
6196 word available at the end. */
6197 plt_offset
= (htab
->plt_initial_entry_size
6198 + (htab
->plt_slot_size
6200 - htab
->plt_initial_entry_size
)
6201 / htab
->plt_entry_size
)));
6203 /* If this symbol is not defined in a regular
6204 file, and we are not generating a shared
6205 library, then set the symbol to this location
6206 in the .plt. This is to avoid text
6207 relocations, and is required to make
6208 function pointers compare as equal between
6209 the normal executable and the shared library. */
6210 if (! bfd_link_pic (info
)
6214 h
->root
.u
.def
.section
= s
;
6215 h
->root
.u
.def
.value
= plt_offset
;
6218 /* Make room for this entry. */
6219 s
->size
+= htab
->plt_entry_size
;
6220 /* After the 8192nd entry, room for two entries
6222 if (htab
->plt_type
== PLT_OLD
6223 && (s
->size
- htab
->plt_initial_entry_size
)
6224 / htab
->plt_entry_size
6225 > PLT_NUM_SINGLE_ENTRIES
)
6226 s
->size
+= htab
->plt_entry_size
;
6228 ent
->plt
.offset
= plt_offset
;
6231 /* We also need to make an entry in the .rela.plt section. */
6235 htab
->elf
.irelplt
->size
+= sizeof (Elf32_External_Rela
);
6238 htab
->elf
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
6240 if (htab
->plt_type
== PLT_VXWORKS
)
6242 /* Allocate space for the unloaded relocations. */
6243 if (!bfd_link_pic (info
)
6244 && htab
->elf
.dynamic_sections_created
)
6247 == (bfd_vma
) htab
->plt_initial_entry_size
)
6249 htab
->srelplt2
->size
6250 += (sizeof (Elf32_External_Rela
)
6251 * VXWORKS_PLTRESOLVE_RELOCS
);
6254 htab
->srelplt2
->size
6255 += (sizeof (Elf32_External_Rela
)
6256 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS
);
6259 /* Every PLT entry has an associated GOT entry in
6261 htab
->elf
.sgotplt
->size
+= 4;
6268 ent
->plt
.offset
= (bfd_vma
) -1;
6272 h
->plt
.plist
= NULL
;
6278 h
->plt
.plist
= NULL
;
6285 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
6286 read-only sections. */
6289 maybe_set_textrel (struct elf_link_hash_entry
*h
, void *info
)
6291 if (h
->root
.type
== bfd_link_hash_indirect
)
6294 if (readonly_dynrelocs (h
))
6296 ((struct bfd_link_info
*) info
)->flags
|= DF_TEXTREL
;
6298 /* Not an error, just cut short the traversal. */
6304 static const unsigned char glink_eh_frame_cie
[] =
6306 0, 0, 0, 16, /* length. */
6307 0, 0, 0, 0, /* id. */
6308 1, /* CIE version. */
6309 'z', 'R', 0, /* Augmentation string. */
6310 4, /* Code alignment. */
6311 0x7c, /* Data alignment. */
6313 1, /* Augmentation size. */
6314 DW_EH_PE_pcrel
| DW_EH_PE_sdata4
, /* FDE encoding. */
6315 DW_CFA_def_cfa
, 1, 0 /* def_cfa: r1 offset 0. */
6318 /* Set the sizes of the dynamic sections. */
6321 ppc_elf_size_dynamic_sections (bfd
*output_bfd
,
6322 struct bfd_link_info
*info
)
6324 struct ppc_elf_link_hash_table
*htab
;
6330 fprintf (stderr
, "ppc_elf_size_dynamic_sections called\n");
6333 htab
= ppc_elf_hash_table (info
);
6334 BFD_ASSERT (htab
->elf
.dynobj
!= NULL
);
6336 if (elf_hash_table (info
)->dynamic_sections_created
)
6338 /* Set the contents of the .interp section to the interpreter. */
6339 if (bfd_link_executable (info
) && !info
->nointerp
)
6341 s
= bfd_get_linker_section (htab
->elf
.dynobj
, ".interp");
6342 BFD_ASSERT (s
!= NULL
);
6343 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
6344 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
6348 if (htab
->plt_type
== PLT_OLD
)
6349 htab
->got_header_size
= 16;
6350 else if (htab
->plt_type
== PLT_NEW
)
6351 htab
->got_header_size
= 12;
6353 /* Set up .got offsets for local syms, and space for local dynamic
6355 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
6357 bfd_signed_vma
*local_got
;
6358 bfd_signed_vma
*end_local_got
;
6359 struct plt_entry
**local_plt
;
6360 struct plt_entry
**end_local_plt
;
6362 bfd_size_type locsymcount
;
6363 Elf_Internal_Shdr
*symtab_hdr
;
6365 if (!is_ppc_elf (ibfd
))
6368 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
6370 struct ppc_dyn_relocs
*p
;
6372 for (p
= ((struct ppc_dyn_relocs
*)
6373 elf_section_data (s
)->local_dynrel
);
6377 if (!bfd_is_abs_section (p
->sec
)
6378 && bfd_is_abs_section (p
->sec
->output_section
))
6380 /* Input section has been discarded, either because
6381 it is a copy of a linkonce section or due to
6382 linker script /DISCARD/, so we'll be discarding
6385 else if (htab
->is_vxworks
6386 && strcmp (p
->sec
->output_section
->name
,
6389 /* Relocations in vxworks .tls_vars sections are
6390 handled specially by the loader. */
6392 else if (p
->count
!= 0)
6394 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
6396 sreloc
= htab
->elf
.irelplt
;
6397 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
6398 if ((p
->sec
->output_section
->flags
6399 & (SEC_READONLY
| SEC_ALLOC
))
6400 == (SEC_READONLY
| SEC_ALLOC
))
6401 info
->flags
|= DF_TEXTREL
;
6406 local_got
= elf_local_got_refcounts (ibfd
);
6410 symtab_hdr
= &elf_symtab_hdr (ibfd
);
6411 locsymcount
= symtab_hdr
->sh_info
;
6412 end_local_got
= local_got
+ locsymcount
;
6413 local_plt
= (struct plt_entry
**) end_local_got
;
6414 end_local_plt
= local_plt
+ locsymcount
;
6415 lgot_masks
= (char *) end_local_plt
;
6417 for (; local_got
< end_local_got
; ++local_got
, ++lgot_masks
)
6420 unsigned int need
= 0;
6421 if ((*lgot_masks
& TLS_TLS
) != 0)
6423 if ((*lgot_masks
& TLS_GD
) != 0)
6425 if ((*lgot_masks
& TLS_LD
) != 0)
6426 htab
->tlsld_got
.refcount
+= 1;
6427 if ((*lgot_masks
& (TLS_TPREL
| TLS_TPRELGD
)) != 0)
6429 if ((*lgot_masks
& TLS_DTPREL
) != 0)
6435 *local_got
= (bfd_vma
) -1;
6438 *local_got
= allocate_got (htab
, need
);
6439 if (bfd_link_pic (info
))
6441 asection
*srel
= htab
->elf
.srelgot
;
6442 if ((*lgot_masks
& PLT_IFUNC
) != 0)
6443 srel
= htab
->elf
.irelplt
;
6444 srel
->size
+= need
* (sizeof (Elf32_External_Rela
) / 4);
6449 *local_got
= (bfd_vma
) -1;
6451 if (htab
->is_vxworks
)
6454 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6455 for (; local_plt
< end_local_plt
; ++local_plt
)
6457 struct plt_entry
*ent
;
6458 bfd_boolean doneone
= FALSE
;
6459 bfd_vma plt_offset
= 0, glink_offset
= 0;
6461 for (ent
= *local_plt
; ent
!= NULL
; ent
= ent
->next
)
6462 if (ent
->plt
.refcount
> 0)
6468 plt_offset
= s
->size
;
6471 ent
->plt
.offset
= plt_offset
;
6474 if (!doneone
|| bfd_link_pic (info
))
6476 glink_offset
= s
->size
;
6477 s
->size
+= GLINK_ENTRY_SIZE
;
6479 ent
->glink_offset
= glink_offset
;
6483 htab
->elf
.irelplt
->size
+= sizeof (Elf32_External_Rela
);
6488 ent
->plt
.offset
= (bfd_vma
) -1;
6492 /* Allocate space for global sym dynamic relocs. */
6493 elf_link_hash_traverse (elf_hash_table (info
), allocate_dynrelocs
, info
);
6495 if (htab
->tlsld_got
.refcount
> 0)
6497 htab
->tlsld_got
.offset
= allocate_got (htab
, 8);
6498 if (bfd_link_pic (info
))
6499 htab
->elf
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
6502 htab
->tlsld_got
.offset
= (bfd_vma
) -1;
6504 if (htab
->elf
.sgot
!= NULL
&& htab
->plt_type
!= PLT_VXWORKS
)
6506 unsigned int g_o_t
= 32768;
6508 /* If we haven't allocated the header, do so now. When we get here,
6509 for old plt/got the got size will be 0 to 32764 (not allocated),
6510 or 32780 to 65536 (header allocated). For new plt/got, the
6511 corresponding ranges are 0 to 32768 and 32780 to 65536. */
6512 if (htab
->elf
.sgot
->size
<= 32768)
6514 g_o_t
= htab
->elf
.sgot
->size
;
6515 if (htab
->plt_type
== PLT_OLD
)
6517 htab
->elf
.sgot
->size
+= htab
->got_header_size
;
6520 htab
->elf
.hgot
->root
.u
.def
.value
= g_o_t
;
6522 if (bfd_link_pic (info
))
6524 struct elf_link_hash_entry
*sda
= htab
->sdata
[0].sym
;
6526 sda
->root
.u
.def
.section
= htab
->elf
.hgot
->root
.u
.def
.section
;
6527 sda
->root
.u
.def
.value
= htab
->elf
.hgot
->root
.u
.def
.value
;
6529 if (info
->emitrelocations
)
6531 struct elf_link_hash_entry
*sda
= htab
->sdata
[0].sym
;
6533 if (sda
!= NULL
&& sda
->ref_regular
)
6534 sda
->root
.u
.def
.section
->flags
|= SEC_KEEP
;
6535 sda
= htab
->sdata
[1].sym
;
6536 if (sda
!= NULL
&& sda
->ref_regular
)
6537 sda
->root
.u
.def
.section
->flags
|= SEC_KEEP
;
6540 if (htab
->glink
!= NULL
6541 && htab
->glink
->size
!= 0
6542 && htab
->elf
.dynamic_sections_created
)
6544 htab
->glink_pltresolve
= htab
->glink
->size
;
6545 /* Space for the branch table. ??? We don't need entries for
6546 non-dynamic symbols in this table. This case can arise with
6547 static ifuncs or forced local ifuncs. */
6548 htab
->glink
->size
+= htab
->glink
->size
/ (GLINK_ENTRY_SIZE
/ 4) - 4;
6549 /* Pad out to align the start of PLTresolve. */
6550 htab
->glink
->size
+= -htab
->glink
->size
& (htab
->params
->ppc476_workaround
6552 htab
->glink
->size
+= GLINK_PLTRESOLVE
;
6554 if (htab
->params
->emit_stub_syms
)
6556 struct elf_link_hash_entry
*sh
;
6557 sh
= elf_link_hash_lookup (&htab
->elf
, "__glink",
6558 TRUE
, FALSE
, FALSE
);
6561 if (sh
->root
.type
== bfd_link_hash_new
)
6563 sh
->root
.type
= bfd_link_hash_defined
;
6564 sh
->root
.u
.def
.section
= htab
->glink
;
6565 sh
->root
.u
.def
.value
= htab
->glink_pltresolve
;
6566 sh
->ref_regular
= 1;
6567 sh
->def_regular
= 1;
6568 sh
->ref_regular_nonweak
= 1;
6569 sh
->forced_local
= 1;
6571 sh
->root
.linker_def
= 1;
6573 sh
= elf_link_hash_lookup (&htab
->elf
, "__glink_PLTresolve",
6574 TRUE
, FALSE
, FALSE
);
6577 if (sh
->root
.type
== bfd_link_hash_new
)
6579 sh
->root
.type
= bfd_link_hash_defined
;
6580 sh
->root
.u
.def
.section
= htab
->glink
;
6581 sh
->root
.u
.def
.value
= htab
->glink
->size
- GLINK_PLTRESOLVE
;
6582 sh
->ref_regular
= 1;
6583 sh
->def_regular
= 1;
6584 sh
->ref_regular_nonweak
= 1;
6585 sh
->forced_local
= 1;
6587 sh
->root
.linker_def
= 1;
6592 if (htab
->glink
!= NULL
6593 && htab
->glink
->size
!= 0
6594 && htab
->glink_eh_frame
!= NULL
6595 && !bfd_is_abs_section (htab
->glink_eh_frame
->output_section
)
6596 && _bfd_elf_eh_frame_present (info
))
6598 s
= htab
->glink_eh_frame
;
6599 s
->size
= sizeof (glink_eh_frame_cie
) + 20;
6600 if (bfd_link_pic (info
))
6603 if (htab
->glink
->size
- GLINK_PLTRESOLVE
+ 8 >= 256)
6608 /* We've now determined the sizes of the various dynamic sections.
6609 Allocate memory for them. */
6611 for (s
= htab
->elf
.dynobj
->sections
; s
!= NULL
; s
= s
->next
)
6613 bfd_boolean strip_section
= TRUE
;
6615 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
6618 if (s
== htab
->elf
.splt
6619 || s
== htab
->elf
.sgot
)
6621 /* We'd like to strip these sections if they aren't needed, but if
6622 we've exported dynamic symbols from them we must leave them.
6623 It's too late to tell BFD to get rid of the symbols. */
6624 if (htab
->elf
.hplt
!= NULL
)
6625 strip_section
= FALSE
;
6626 /* Strip this section if we don't need it; see the
6629 else if (s
== htab
->elf
.iplt
6631 || s
== htab
->glink_eh_frame
6632 || s
== htab
->elf
.sgotplt
6634 || s
== htab
->elf
.sdynbss
6635 || s
== htab
->elf
.sdynrelro
6636 || s
== htab
->dynsbss
)
6638 /* Strip these too. */
6640 else if (s
== htab
->sdata
[0].section
6641 || s
== htab
->sdata
[1].section
)
6643 strip_section
= (s
->flags
& SEC_KEEP
) == 0;
6645 else if (CONST_STRNEQ (bfd_get_section_name (htab
->elf
.dynobj
, s
),
6650 /* Remember whether there are any relocation sections. */
6653 /* We use the reloc_count field as a counter if we need
6654 to copy relocs into the output file. */
6660 /* It's not one of our sections, so don't allocate space. */
6664 if (s
->size
== 0 && strip_section
)
6666 /* If we don't need this section, strip it from the
6667 output file. This is mostly to handle .rela.bss and
6668 .rela.plt. We must create both sections in
6669 create_dynamic_sections, because they must be created
6670 before the linker maps input sections to output
6671 sections. The linker does that before
6672 adjust_dynamic_symbol is called, and it is that
6673 function which decides whether anything needs to go
6674 into these sections. */
6675 s
->flags
|= SEC_EXCLUDE
;
6679 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
6682 /* Allocate memory for the section contents. */
6683 s
->contents
= bfd_zalloc (htab
->elf
.dynobj
, s
->size
);
6684 if (s
->contents
== NULL
)
6688 if (htab
->elf
.dynamic_sections_created
)
6690 /* Add some entries to the .dynamic section. We fill in the
6691 values later, in ppc_elf_finish_dynamic_sections, but we
6692 must add the entries now so that we get the correct size for
6693 the .dynamic section. The DT_DEBUG entry is filled in by the
6694 dynamic linker and used by the debugger. */
6695 #define add_dynamic_entry(TAG, VAL) \
6696 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6698 if (bfd_link_executable (info
))
6700 if (!add_dynamic_entry (DT_DEBUG
, 0))
6704 if (htab
->elf
.splt
!= NULL
&& htab
->elf
.splt
->size
!= 0)
6706 if (!add_dynamic_entry (DT_PLTGOT
, 0)
6707 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
6708 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
6709 || !add_dynamic_entry (DT_JMPREL
, 0))
6713 if (htab
->plt_type
== PLT_NEW
6714 && htab
->glink
!= NULL
6715 && htab
->glink
->size
!= 0)
6717 if (!add_dynamic_entry (DT_PPC_GOT
, 0))
6719 if (!htab
->params
->no_tls_get_addr_opt
6720 && htab
->tls_get_addr
!= NULL
6721 && htab
->tls_get_addr
->plt
.plist
!= NULL
6722 && !add_dynamic_entry (DT_PPC_OPT
, PPC_OPT_TLS
))
6728 if (!add_dynamic_entry (DT_RELA
, 0)
6729 || !add_dynamic_entry (DT_RELASZ
, 0)
6730 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
6734 /* If any dynamic relocs apply to a read-only section, then we
6735 need a DT_TEXTREL entry. */
6736 if ((info
->flags
& DF_TEXTREL
) == 0)
6737 elf_link_hash_traverse (elf_hash_table (info
), maybe_set_textrel
,
6740 if ((info
->flags
& DF_TEXTREL
) != 0)
6742 if (!add_dynamic_entry (DT_TEXTREL
, 0))
6745 if (htab
->is_vxworks
6746 && !elf_vxworks_add_dynamic_entries (output_bfd
, info
))
6749 #undef add_dynamic_entry
6751 if (htab
->glink_eh_frame
!= NULL
6752 && htab
->glink_eh_frame
->contents
!= NULL
)
6754 unsigned char *p
= htab
->glink_eh_frame
->contents
;
6757 memcpy (p
, glink_eh_frame_cie
, sizeof (glink_eh_frame_cie
));
6758 /* CIE length (rewrite in case little-endian). */
6759 bfd_put_32 (htab
->elf
.dynobj
, sizeof (glink_eh_frame_cie
) - 4, p
);
6760 p
+= sizeof (glink_eh_frame_cie
);
6762 val
= htab
->glink_eh_frame
->size
- 4 - sizeof (glink_eh_frame_cie
);
6763 bfd_put_32 (htab
->elf
.dynobj
, val
, p
);
6766 val
= p
- htab
->glink_eh_frame
->contents
;
6767 bfd_put_32 (htab
->elf
.dynobj
, val
, p
);
6769 /* Offset to .glink. Set later. */
6772 bfd_put_32 (htab
->elf
.dynobj
, htab
->glink
->size
, p
);
6777 if (bfd_link_pic (info
)
6778 && htab
->elf
.dynamic_sections_created
)
6780 bfd_vma adv
= (htab
->glink
->size
- GLINK_PLTRESOLVE
+ 8) >> 2;
6782 *p
++ = DW_CFA_advance_loc
+ adv
;
6785 *p
++ = DW_CFA_advance_loc1
;
6788 else if (adv
< 65536)
6790 *p
++ = DW_CFA_advance_loc2
;
6791 bfd_put_16 (htab
->elf
.dynobj
, adv
, p
);
6796 *p
++ = DW_CFA_advance_loc4
;
6797 bfd_put_32 (htab
->elf
.dynobj
, adv
, p
);
6800 *p
++ = DW_CFA_register
;
6803 *p
++ = DW_CFA_advance_loc
+ 4;
6804 *p
++ = DW_CFA_restore_extended
;
6807 BFD_ASSERT ((bfd_vma
) ((p
+ 3 - htab
->glink_eh_frame
->contents
) & -4)
6808 == htab
->glink_eh_frame
->size
);
6814 /* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
6815 if it looks like nothing is using them. */
6818 maybe_strip_sdasym (bfd
*output_bfd
, elf_linker_section_t
*lsect
)
6820 struct elf_link_hash_entry
*sda
= lsect
->sym
;
6822 if (sda
!= NULL
&& !sda
->ref_regular
&& sda
->dynindx
== -1)
6826 s
= bfd_get_section_by_name (output_bfd
, lsect
->name
);
6827 if (s
== NULL
|| bfd_section_removed_from_list (output_bfd
, s
))
6829 s
= bfd_get_section_by_name (output_bfd
, lsect
->bss_name
);
6830 if (s
== NULL
|| bfd_section_removed_from_list (output_bfd
, s
))
6832 sda
->def_regular
= 0;
6833 /* This is somewhat magic. See elf_link_output_extsym. */
6834 sda
->ref_dynamic
= 1;
6835 sda
->forced_local
= 0;
6842 ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info
*info
)
6844 struct ppc_elf_link_hash_table
*htab
= ppc_elf_hash_table (info
);
6848 maybe_strip_sdasym (info
->output_bfd
, &htab
->sdata
[0]);
6849 maybe_strip_sdasym (info
->output_bfd
, &htab
->sdata
[1]);
6854 /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6857 ppc_elf_hash_symbol (struct elf_link_hash_entry
*h
)
6859 if (h
->plt
.plist
!= NULL
6861 && (!h
->pointer_equality_needed
6862 || !h
->ref_regular_nonweak
))
6865 return _bfd_elf_hash_symbol (h
);
6868 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6870 /* Relaxation trampolines. r12 is available for clobbering (r11, is
6871 used for some functions that are allowed to break the ABI). */
6872 static const int shared_stub_entry
[] =
6874 0x7c0802a6, /* mflr 0 */
6875 0x429f0005, /* bcl 20, 31, .Lxxx */
6876 0x7d8802a6, /* mflr 12 */
6877 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
6878 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
6879 0x7c0803a6, /* mtlr 0 */
6880 0x7d8903a6, /* mtctr 12 */
6881 0x4e800420, /* bctr */
6884 static const int stub_entry
[] =
6886 0x3d800000, /* lis 12,xxx@ha */
6887 0x398c0000, /* addi 12,12,xxx@l */
6888 0x7d8903a6, /* mtctr 12 */
6889 0x4e800420, /* bctr */
6892 struct ppc_elf_relax_info
6894 unsigned int workaround_size
;
6895 unsigned int picfixup_size
;
6898 /* This function implements long branch trampolines, and the ppc476
6899 icache bug workaround. Any section needing trampolines or patch
6900 space for the workaround has its size extended so that we can
6901 add trampolines at the end of the section. */
6904 ppc_elf_relax_section (bfd
*abfd
,
6906 struct bfd_link_info
*link_info
,
6909 struct one_branch_fixup
6911 struct one_branch_fixup
*next
;
6913 /* Final link, can use the symbol offset. For a
6914 relocatable link we use the symbol's index. */
6919 Elf_Internal_Shdr
*symtab_hdr
;
6920 bfd_byte
*contents
= NULL
;
6921 Elf_Internal_Sym
*isymbuf
= NULL
;
6922 Elf_Internal_Rela
*internal_relocs
= NULL
;
6923 Elf_Internal_Rela
*irel
, *irelend
= NULL
;
6924 struct one_branch_fixup
*branch_fixups
= NULL
;
6925 struct ppc_elf_relax_info
*relax_info
= NULL
;
6926 unsigned changes
= 0;
6927 bfd_boolean workaround_change
;
6928 struct ppc_elf_link_hash_table
*htab
;
6929 bfd_size_type trampbase
, trampoff
, newsize
, picfixup_size
;
6931 bfd_boolean maybe_pasted
;
6935 /* No need to do anything with non-alloc or non-code sections. */
6936 if ((isec
->flags
& SEC_ALLOC
) == 0
6937 || (isec
->flags
& SEC_CODE
) == 0
6938 || (isec
->flags
& SEC_LINKER_CREATED
) != 0
6942 /* We cannot represent the required PIC relocs in the output, so don't
6943 do anything. The linker doesn't support mixing -shared and -r
6945 if (bfd_link_relocatable (link_info
) && bfd_link_pic (link_info
))
6948 htab
= ppc_elf_hash_table (link_info
);
6952 isec
->size
= (isec
->size
+ 3) & -4;
6953 if (isec
->rawsize
== 0)
6954 isec
->rawsize
= isec
->size
;
6955 trampbase
= isec
->size
;
6957 BFD_ASSERT (isec
->sec_info_type
== SEC_INFO_TYPE_NONE
6958 || isec
->sec_info_type
== SEC_INFO_TYPE_TARGET
);
6959 isec
->sec_info_type
= SEC_INFO_TYPE_TARGET
;
6961 if (htab
->params
->ppc476_workaround
6962 || htab
->params
->pic_fixup
> 0)
6964 if (elf_section_data (isec
)->sec_info
== NULL
)
6966 elf_section_data (isec
)->sec_info
6967 = bfd_zalloc (abfd
, sizeof (struct ppc_elf_relax_info
));
6968 if (elf_section_data (isec
)->sec_info
== NULL
)
6971 relax_info
= elf_section_data (isec
)->sec_info
;
6972 trampbase
-= relax_info
->workaround_size
;
6975 maybe_pasted
= (strcmp (isec
->output_section
->name
, ".init") == 0
6976 || strcmp (isec
->output_section
->name
, ".fini") == 0);
6977 /* Space for a branch around any trampolines. */
6978 trampoff
= trampbase
;
6979 if (maybe_pasted
&& trampbase
== isec
->rawsize
)
6982 symtab_hdr
= &elf_symtab_hdr (abfd
);
6984 if (htab
->params
->branch_trampolines
6985 || htab
->params
->pic_fixup
> 0)
6987 /* Get a copy of the native relocations. */
6988 if (isec
->reloc_count
!= 0)
6990 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, isec
, NULL
, NULL
,
6991 link_info
->keep_memory
);
6992 if (internal_relocs
== NULL
)
6996 got2
= bfd_get_section_by_name (abfd
, ".got2");
6998 irelend
= internal_relocs
+ isec
->reloc_count
;
6999 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
7001 unsigned long r_type
= ELF32_R_TYPE (irel
->r_info
);
7004 struct one_branch_fixup
*f
;
7005 size_t insn_offset
= 0;
7006 bfd_vma max_branch_offset
= 0, val
;
7009 struct elf_link_hash_entry
*h
;
7010 struct plt_entry
**plist
;
7011 unsigned char sym_type
;
7016 case R_PPC_LOCAL24PC
:
7017 case R_PPC_PLTREL24
:
7018 max_branch_offset
= 1 << 25;
7022 case R_PPC_REL14_BRTAKEN
:
7023 case R_PPC_REL14_BRNTAKEN
:
7024 max_branch_offset
= 1 << 15;
7027 case R_PPC_ADDR16_HA
:
7028 if (htab
->params
->pic_fixup
> 0)
7036 /* Get the value of the symbol referred to by the reloc. */
7038 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
7040 /* A local symbol. */
7041 Elf_Internal_Sym
*isym
;
7043 /* Read this BFD's local symbols. */
7044 if (isymbuf
== NULL
)
7046 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
7047 if (isymbuf
== NULL
)
7048 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
7049 symtab_hdr
->sh_info
, 0,
7054 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
7055 if (isym
->st_shndx
== SHN_UNDEF
)
7056 tsec
= bfd_und_section_ptr
;
7057 else if (isym
->st_shndx
== SHN_ABS
)
7058 tsec
= bfd_abs_section_ptr
;
7059 else if (isym
->st_shndx
== SHN_COMMON
)
7060 tsec
= bfd_com_section_ptr
;
7062 tsec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
7064 toff
= isym
->st_value
;
7065 sym_type
= ELF_ST_TYPE (isym
->st_info
);
7069 /* Global symbol handling. */
7072 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
7073 h
= elf_sym_hashes (abfd
)[indx
];
7075 while (h
->root
.type
== bfd_link_hash_indirect
7076 || h
->root
.type
== bfd_link_hash_warning
)
7077 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
7079 if (h
->root
.type
== bfd_link_hash_defined
7080 || h
->root
.type
== bfd_link_hash_defweak
)
7082 tsec
= h
->root
.u
.def
.section
;
7083 toff
= h
->root
.u
.def
.value
;
7085 else if (h
->root
.type
== bfd_link_hash_undefined
7086 || h
->root
.type
== bfd_link_hash_undefweak
)
7088 tsec
= bfd_und_section_ptr
;
7089 toff
= bfd_link_relocatable (link_info
) ? indx
: 0;
7094 /* If this branch is to __tls_get_addr then we may later
7095 optimise away the call. We won't be needing a long-
7096 branch stub in that case. */
7097 if (bfd_link_executable (link_info
)
7098 && h
== htab
->tls_get_addr
7099 && irel
!= internal_relocs
)
7101 unsigned long t_symndx
= ELF32_R_SYM (irel
[-1].r_info
);
7102 unsigned long t_rtype
= ELF32_R_TYPE (irel
[-1].r_info
);
7103 unsigned int tls_mask
= 0;
7105 /* The previous reloc should be one of R_PPC_TLSGD or
7106 R_PPC_TLSLD, or for older object files, a reloc
7107 on the __tls_get_addr arg setup insn. Get tls
7108 mask bits from the symbol on that reloc. */
7109 if (t_symndx
< symtab_hdr
->sh_info
)
7111 bfd_vma
*local_got_offsets
= elf_local_got_offsets (abfd
);
7113 if (local_got_offsets
!= NULL
)
7115 struct plt_entry
**local_plt
= (struct plt_entry
**)
7116 (local_got_offsets
+ symtab_hdr
->sh_info
);
7117 char *lgot_masks
= (char *)
7118 (local_plt
+ symtab_hdr
->sh_info
);
7119 tls_mask
= lgot_masks
[t_symndx
];
7124 struct elf_link_hash_entry
*th
7125 = elf_sym_hashes (abfd
)[t_symndx
- symtab_hdr
->sh_info
];
7127 while (th
->root
.type
== bfd_link_hash_indirect
7128 || th
->root
.type
== bfd_link_hash_warning
)
7129 th
= (struct elf_link_hash_entry
*) th
->root
.u
.i
.link
;
7132 = ((struct ppc_elf_link_hash_entry
*) th
)->tls_mask
;
7135 /* The mask bits tell us if the call will be
7137 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_GD
) == 0
7138 && (t_rtype
== R_PPC_TLSGD
7139 || t_rtype
== R_PPC_GOT_TLSGD16
7140 || t_rtype
== R_PPC_GOT_TLSGD16_LO
))
7142 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_LD
) == 0
7143 && (t_rtype
== R_PPC_TLSLD
7144 || t_rtype
== R_PPC_GOT_TLSLD16
7145 || t_rtype
== R_PPC_GOT_TLSLD16_LO
))
7152 if (r_type
== R_PPC_ADDR16_HA
)
7157 && ppc_elf_hash_entry (h
)->has_addr16_ha
7158 && ppc_elf_hash_entry (h
)->has_addr16_lo
)
7159 picfixup_size
+= 12;
7163 /* The condition here under which we call find_plt_ent must
7164 match that in relocate_section. If we call find_plt_ent here
7165 but not in relocate_section, or vice versa, then the branch
7166 destination used here may be incorrect. */
7170 /* We know is_branch_reloc (r_type) is true. */
7171 if (h
->type
== STT_GNU_IFUNC
7172 || r_type
== R_PPC_PLTREL24
)
7173 plist
= &h
->plt
.plist
;
7175 else if (sym_type
== STT_GNU_IFUNC
7176 && elf_local_got_offsets (abfd
) != NULL
)
7178 bfd_vma
*local_got_offsets
= elf_local_got_offsets (abfd
);
7179 struct plt_entry
**local_plt
= (struct plt_entry
**)
7180 (local_got_offsets
+ symtab_hdr
->sh_info
);
7181 plist
= local_plt
+ ELF32_R_SYM (irel
->r_info
);
7186 struct plt_entry
*ent
;
7188 if (r_type
== R_PPC_PLTREL24
&& bfd_link_pic (link_info
))
7189 addend
= irel
->r_addend
;
7190 ent
= find_plt_ent (plist
, got2
, addend
);
7193 if (htab
->plt_type
== PLT_NEW
7195 || !htab
->elf
.dynamic_sections_created
7196 || h
->dynindx
== -1)
7199 toff
= ent
->glink_offset
;
7203 tsec
= htab
->elf
.splt
;
7204 toff
= ent
->plt
.offset
;
7209 /* If the branch and target are in the same section, you have
7210 no hope of adding stubs. We'll error out later should the
7215 /* There probably isn't any reason to handle symbols in
7216 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
7217 attribute for a code section, and we are only looking at
7218 branches. However, implement it correctly here as a
7219 reference for other target relax_section functions. */
7220 if (0 && tsec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
7222 /* At this stage in linking, no SEC_MERGE symbol has been
7223 adjusted, so all references to such symbols need to be
7224 passed through _bfd_merged_section_offset. (Later, in
7225 relocate_section, all SEC_MERGE symbols *except* for
7226 section symbols have been adjusted.)
7228 gas may reduce relocations against symbols in SEC_MERGE
7229 sections to a relocation against the section symbol when
7230 the original addend was zero. When the reloc is against
7231 a section symbol we should include the addend in the
7232 offset passed to _bfd_merged_section_offset, since the
7233 location of interest is the original symbol. On the
7234 other hand, an access to "sym+addend" where "sym" is not
7235 a section symbol should not include the addend; Such an
7236 access is presumed to be an offset from "sym"; The
7237 location of interest is just "sym". */
7238 if (sym_type
== STT_SECTION
)
7239 toff
+= irel
->r_addend
;
7242 = _bfd_merged_section_offset (abfd
, &tsec
,
7243 elf_section_data (tsec
)->sec_info
,
7246 if (sym_type
!= STT_SECTION
)
7247 toff
+= irel
->r_addend
;
7249 /* PLTREL24 addends are special. */
7250 else if (r_type
!= R_PPC_PLTREL24
)
7251 toff
+= irel
->r_addend
;
7253 /* Attempted -shared link of non-pic code loses. */
7254 if ((!bfd_link_relocatable (link_info
)
7255 && tsec
== bfd_und_section_ptr
)
7256 || tsec
->output_section
== NULL
7257 || (tsec
->owner
!= NULL
7258 && (tsec
->owner
->flags
& BFD_PLUGIN
) != 0))
7261 roff
= irel
->r_offset
;
7263 /* If the branch is in range, no need to do anything. */
7264 if (tsec
!= bfd_und_section_ptr
7265 && (!bfd_link_relocatable (link_info
)
7266 /* A relocatable link may have sections moved during
7267 final link, so do not presume they remain in range. */
7268 || tsec
->output_section
== isec
->output_section
))
7270 bfd_vma symaddr
, reladdr
;
7272 symaddr
= tsec
->output_section
->vma
+ tsec
->output_offset
+ toff
;
7273 reladdr
= isec
->output_section
->vma
+ isec
->output_offset
+ roff
;
7274 if (symaddr
- reladdr
+ max_branch_offset
7275 < 2 * max_branch_offset
)
7279 /* Look for an existing fixup to this address. */
7280 for (f
= branch_fixups
; f
; f
= f
->next
)
7281 if (f
->tsec
== tsec
&& f
->toff
== toff
)
7287 unsigned long stub_rtype
;
7289 val
= trampoff
- roff
;
7290 if (val
>= max_branch_offset
)
7291 /* Oh dear, we can't reach a trampoline. Don't try to add
7292 one. We'll report an error later. */
7295 if (bfd_link_pic (link_info
))
7297 size
= 4 * ARRAY_SIZE (shared_stub_entry
);
7302 size
= 4 * ARRAY_SIZE (stub_entry
);
7305 stub_rtype
= R_PPC_RELAX
;
7306 if (tsec
== htab
->elf
.splt
7307 || tsec
== htab
->glink
)
7309 stub_rtype
= R_PPC_RELAX_PLT
;
7310 if (r_type
== R_PPC_PLTREL24
)
7311 stub_rtype
= R_PPC_RELAX_PLTREL24
;
7314 /* Hijack the old relocation. Since we need two
7315 relocations for this use a "composite" reloc. */
7316 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
7318 irel
->r_offset
= trampoff
+ insn_offset
;
7319 if (r_type
== R_PPC_PLTREL24
7320 && stub_rtype
!= R_PPC_RELAX_PLTREL24
)
7323 /* Record the fixup so we don't do it again this section. */
7324 f
= bfd_malloc (sizeof (*f
));
7325 f
->next
= branch_fixups
;
7328 f
->trampoff
= trampoff
;
7336 val
= f
->trampoff
- roff
;
7337 if (val
>= max_branch_offset
)
7340 /* Nop out the reloc, since we're finalizing things here. */
7341 irel
->r_info
= ELF32_R_INFO (0, R_PPC_NONE
);
7344 /* Get the section contents. */
7345 if (contents
== NULL
)
7347 /* Get cached copy if it exists. */
7348 if (elf_section_data (isec
)->this_hdr
.contents
!= NULL
)
7349 contents
= elf_section_data (isec
)->this_hdr
.contents
;
7350 /* Go get them off disk. */
7351 else if (!bfd_malloc_and_get_section (abfd
, isec
, &contents
))
7355 /* Fix up the existing branch to hit the trampoline. */
7356 hit_addr
= contents
+ roff
;
7360 case R_PPC_LOCAL24PC
:
7361 case R_PPC_PLTREL24
:
7362 t0
= bfd_get_32 (abfd
, hit_addr
);
7364 t0
|= val
& 0x3fffffc;
7365 bfd_put_32 (abfd
, t0
, hit_addr
);
7369 case R_PPC_REL14_BRTAKEN
:
7370 case R_PPC_REL14_BRNTAKEN
:
7371 t0
= bfd_get_32 (abfd
, hit_addr
);
7374 bfd_put_32 (abfd
, t0
, hit_addr
);
7379 while (branch_fixups
!= NULL
)
7381 struct one_branch_fixup
*f
= branch_fixups
;
7382 branch_fixups
= branch_fixups
->next
;
7387 workaround_change
= FALSE
;
7389 if (htab
->params
->ppc476_workaround
7390 && (!bfd_link_relocatable (link_info
)
7391 || isec
->output_section
->alignment_power
>= htab
->params
->pagesize_p2
))
7393 bfd_vma addr
, end_addr
;
7394 unsigned int crossings
;
7395 bfd_vma pagesize
= (bfd_vma
) 1 << htab
->params
->pagesize_p2
;
7397 addr
= isec
->output_section
->vma
+ isec
->output_offset
;
7398 end_addr
= addr
+ trampoff
;
7400 crossings
= ((end_addr
& -pagesize
) - addr
) >> htab
->params
->pagesize_p2
;
7403 /* Keep space aligned, to ensure the patch code itself does
7404 not cross a page. Don't decrease size calculated on a
7405 previous pass as otherwise we might never settle on a layout. */
7406 newsize
= 15 - ((end_addr
- 1) & 15);
7407 newsize
+= crossings
* 16;
7408 if (relax_info
->workaround_size
< newsize
)
7410 relax_info
->workaround_size
= newsize
;
7411 workaround_change
= TRUE
;
7413 /* Ensure relocate_section is called. */
7414 isec
->flags
|= SEC_RELOC
;
7416 newsize
= trampoff
+ relax_info
->workaround_size
;
7419 if (htab
->params
->pic_fixup
> 0)
7421 picfixup_size
-= relax_info
->picfixup_size
;
7422 if (picfixup_size
!= 0)
7423 relax_info
->picfixup_size
+= picfixup_size
;
7424 newsize
+= relax_info
->picfixup_size
;
7427 if (changes
!= 0 || picfixup_size
!= 0 || workaround_change
)
7428 isec
->size
= newsize
;
7431 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
7433 if (! link_info
->keep_memory
)
7437 /* Cache the symbols for elf_link_input_bfd. */
7438 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
7442 if (contents
!= NULL
7443 && elf_section_data (isec
)->this_hdr
.contents
!= contents
)
7445 if (!changes
&& !link_info
->keep_memory
)
7449 /* Cache the section contents for elf_link_input_bfd. */
7450 elf_section_data (isec
)->this_hdr
.contents
= contents
;
7454 changes
+= picfixup_size
;
7457 /* Append sufficient NOP relocs so we can write out relocation
7458 information for the trampolines. */
7459 Elf_Internal_Shdr
*rel_hdr
;
7460 Elf_Internal_Rela
*new_relocs
= bfd_malloc ((changes
+ isec
->reloc_count
)
7461 * sizeof (*new_relocs
));
7466 memcpy (new_relocs
, internal_relocs
,
7467 isec
->reloc_count
* sizeof (*new_relocs
));
7468 for (ix
= changes
; ix
--;)
7470 irel
= new_relocs
+ ix
+ isec
->reloc_count
;
7472 irel
->r_info
= ELF32_R_INFO (0, R_PPC_NONE
);
7474 if (internal_relocs
!= elf_section_data (isec
)->relocs
)
7475 free (internal_relocs
);
7476 elf_section_data (isec
)->relocs
= new_relocs
;
7477 isec
->reloc_count
+= changes
;
7478 rel_hdr
= _bfd_elf_single_rel_hdr (isec
);
7479 rel_hdr
->sh_size
+= changes
* rel_hdr
->sh_entsize
;
7481 else if (internal_relocs
!= NULL
7482 && elf_section_data (isec
)->relocs
!= internal_relocs
)
7483 free (internal_relocs
);
7485 *again
= changes
!= 0 || workaround_change
;
7489 while (branch_fixups
!= NULL
)
7491 struct one_branch_fixup
*f
= branch_fixups
;
7492 branch_fixups
= branch_fixups
->next
;
7495 if (isymbuf
!= NULL
&& (unsigned char *) isymbuf
!= symtab_hdr
->contents
)
7497 if (contents
!= NULL
7498 && elf_section_data (isec
)->this_hdr
.contents
!= contents
)
7500 if (internal_relocs
!= NULL
7501 && elf_section_data (isec
)->relocs
!= internal_relocs
)
7502 free (internal_relocs
);
7506 /* What to do when ld finds relocations against symbols defined in
7507 discarded sections. */
7510 ppc_elf_action_discarded (asection
*sec
)
7512 if (strcmp (".fixup", sec
->name
) == 0)
7515 if (strcmp (".got2", sec
->name
) == 0)
7518 return _bfd_elf_default_action_discarded (sec
);
7521 /* Fill in the address for a pointer generated in a linker section. */
7524 elf_finish_pointer_linker_section (bfd
*input_bfd
,
7525 elf_linker_section_t
*lsect
,
7526 struct elf_link_hash_entry
*h
,
7528 const Elf_Internal_Rela
*rel
)
7530 elf_linker_section_pointers_t
*linker_section_ptr
;
7532 BFD_ASSERT (lsect
!= NULL
);
7536 /* Handle global symbol. */
7537 struct ppc_elf_link_hash_entry
*eh
;
7539 eh
= (struct ppc_elf_link_hash_entry
*) h
;
7540 BFD_ASSERT (eh
->elf
.def_regular
);
7541 linker_section_ptr
= eh
->linker_section_pointer
;
7545 /* Handle local symbol. */
7546 unsigned long r_symndx
= ELF32_R_SYM (rel
->r_info
);
7548 BFD_ASSERT (is_ppc_elf (input_bfd
));
7549 BFD_ASSERT (elf_local_ptr_offsets (input_bfd
) != NULL
);
7550 linker_section_ptr
= elf_local_ptr_offsets (input_bfd
)[r_symndx
];
7553 linker_section_ptr
= elf_find_pointer_linker_section (linker_section_ptr
,
7556 BFD_ASSERT (linker_section_ptr
!= NULL
);
7558 /* Offset will always be a multiple of four, so use the bottom bit
7559 as a "written" flag. */
7560 if ((linker_section_ptr
->offset
& 1) == 0)
7562 bfd_put_32 (lsect
->section
->owner
,
7563 relocation
+ linker_section_ptr
->addend
,
7564 lsect
->section
->contents
+ linker_section_ptr
->offset
);
7565 linker_section_ptr
->offset
+= 1;
7568 relocation
= (lsect
->section
->output_section
->vma
7569 + lsect
->section
->output_offset
7570 + linker_section_ptr
->offset
- 1
7571 - SYM_VAL (lsect
->sym
));
7575 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7576 lsect
->name
, (long) relocation
, (long) relocation
);
7582 #define PPC_LO(v) ((v) & 0xffff)
7583 #define PPC_HI(v) (((v) >> 16) & 0xffff)
7584 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
7587 write_glink_stub (struct plt_entry
*ent
, asection
*plt_sec
, unsigned char *p
,
7588 struct bfd_link_info
*info
)
7590 struct ppc_elf_link_hash_table
*htab
= ppc_elf_hash_table (info
);
7591 bfd
*output_bfd
= info
->output_bfd
;
7594 plt
= ((ent
->plt
.offset
& ~1)
7595 + plt_sec
->output_section
->vma
7596 + plt_sec
->output_offset
);
7598 if (bfd_link_pic (info
))
7602 if (ent
->addend
>= 32768)
7604 + ent
->sec
->output_section
->vma
7605 + ent
->sec
->output_offset
);
7606 else if (htab
->elf
.hgot
!= NULL
)
7607 got
= SYM_VAL (htab
->elf
.hgot
);
7611 if (plt
+ 0x8000 < 0x10000)
7613 bfd_put_32 (output_bfd
, LWZ_11_30
+ PPC_LO (plt
), p
);
7615 bfd_put_32 (output_bfd
, MTCTR_11
, p
);
7617 bfd_put_32 (output_bfd
, BCTR
, p
);
7619 bfd_put_32 (output_bfd
, htab
->params
->ppc476_workaround
? BA
: NOP
, p
);
7624 bfd_put_32 (output_bfd
, ADDIS_11_30
+ PPC_HA (plt
), p
);
7626 bfd_put_32 (output_bfd
, LWZ_11_11
+ PPC_LO (plt
), p
);
7628 bfd_put_32 (output_bfd
, MTCTR_11
, p
);
7630 bfd_put_32 (output_bfd
, BCTR
, p
);
7636 bfd_put_32 (output_bfd
, LIS_11
+ PPC_HA (plt
), p
);
7638 bfd_put_32 (output_bfd
, LWZ_11_11
+ PPC_LO (plt
), p
);
7640 bfd_put_32 (output_bfd
, MTCTR_11
, p
);
7642 bfd_put_32 (output_bfd
, BCTR
, p
);
7647 /* Return true if symbol is defined statically. */
7650 is_static_defined (struct elf_link_hash_entry
*h
)
7652 return ((h
->root
.type
== bfd_link_hash_defined
7653 || h
->root
.type
== bfd_link_hash_defweak
)
7654 && h
->root
.u
.def
.section
!= NULL
7655 && h
->root
.u
.def
.section
->output_section
!= NULL
);
7658 /* If INSN is an opcode that may be used with an @tls operand, return
7659 the transformed insn for TLS optimisation, otherwise return 0. If
7660 REG is non-zero only match an insn with RB or RA equal to REG. */
7663 _bfd_elf_ppc_at_tls_transform (unsigned int insn
, unsigned int reg
)
7667 if ((insn
& (0x3f << 26)) != 31 << 26)
7670 if (reg
== 0 || ((insn
>> 11) & 0x1f) == reg
)
7671 rtra
= insn
& ((1 << 26) - (1 << 16));
7672 else if (((insn
>> 16) & 0x1f) == reg
)
7673 rtra
= (insn
& (0x1f << 21)) | ((insn
& (0x1f << 11)) << 5);
7677 if ((insn
& (0x3ff << 1)) == 266 << 1)
7680 else if ((insn
& (0x1f << 1)) == 23 << 1
7681 && ((insn
& (0x1f << 6)) < 14 << 6
7682 || ((insn
& (0x1f << 6)) >= 16 << 6
7683 && (insn
& (0x1f << 6)) < 24 << 6)))
7684 /* load and store indexed -> dform. */
7685 insn
= (32 | ((insn
>> 6) & 0x1f)) << 26;
7686 else if ((insn
& (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7687 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7688 insn
= ((58 | ((insn
>> 6) & 4)) << 26) | ((insn
>> 6) & 1);
7689 else if ((insn
& (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7691 insn
= (58 << 26) | 2;
7698 /* If INSN is an opcode that may be used with an @tprel operand, return
7699 the transformed insn for an undefined weak symbol, ie. with the
7700 thread pointer REG operand removed. Otherwise return 0. */
7703 _bfd_elf_ppc_at_tprel_transform (unsigned int insn
, unsigned int reg
)
7705 if ((insn
& (0x1f << 16)) == reg
<< 16
7706 && ((insn
& (0x3f << 26)) == 14u << 26 /* addi */
7707 || (insn
& (0x3f << 26)) == 15u << 26 /* addis */
7708 || (insn
& (0x3f << 26)) == 32u << 26 /* lwz */
7709 || (insn
& (0x3f << 26)) == 34u << 26 /* lbz */
7710 || (insn
& (0x3f << 26)) == 36u << 26 /* stw */
7711 || (insn
& (0x3f << 26)) == 38u << 26 /* stb */
7712 || (insn
& (0x3f << 26)) == 40u << 26 /* lhz */
7713 || (insn
& (0x3f << 26)) == 42u << 26 /* lha */
7714 || (insn
& (0x3f << 26)) == 44u << 26 /* sth */
7715 || (insn
& (0x3f << 26)) == 46u << 26 /* lmw */
7716 || (insn
& (0x3f << 26)) == 47u << 26 /* stmw */
7717 || (insn
& (0x3f << 26)) == 48u << 26 /* lfs */
7718 || (insn
& (0x3f << 26)) == 50u << 26 /* lfd */
7719 || (insn
& (0x3f << 26)) == 52u << 26 /* stfs */
7720 || (insn
& (0x3f << 26)) == 54u << 26 /* stfd */
7721 || ((insn
& (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7723 || ((insn
& (0x3f << 26)) == 62u << 26 /* std, stmd */
7724 && ((insn
& 3) == 0 || (insn
& 3) == 3))))
7726 insn
&= ~(0x1f << 16);
7728 else if ((insn
& (0x1f << 21)) == reg
<< 21
7729 && ((insn
& (0x3e << 26)) == 24u << 26 /* ori, oris */
7730 || (insn
& (0x3e << 26)) == 26u << 26 /* xori,xoris */
7731 || (insn
& (0x3e << 26)) == 28u << 26 /* andi,andis */))
7733 insn
&= ~(0x1f << 21);
7734 insn
|= (insn
& (0x1f << 16)) << 5;
7735 if ((insn
& (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7736 insn
-= 2 >> 26; /* convert to ori,oris */
7744 is_insn_ds_form (unsigned int insn
)
7746 return ((insn
& (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7747 || (insn
& (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7748 || (insn
& (0x3f << 26)) == 57u << 26 /* lfdp */
7749 || (insn
& (0x3f << 26)) == 61u << 26 /* stfdp */);
7753 is_insn_dq_form (unsigned int insn
)
7755 return ((insn
& (0x3f << 26)) == 56u << 26 /* lq */
7756 || ((insn
& (0x3f << 26)) == (61u << 26) /* lxv, stxv */
7757 && (insn
& 3) == 1));
7760 /* The RELOCATE_SECTION function is called by the ELF backend linker
7761 to handle the relocations for a section.
7763 The relocs are always passed as Rela structures; if the section
7764 actually uses Rel structures, the r_addend field will always be
7767 This function is responsible for adjust the section contents as
7768 necessary, and (if using Rela relocs and generating a
7769 relocatable output file) adjusting the reloc addend as
7772 This function does not have to worry about setting the reloc
7773 address or the reloc symbol index.
7775 LOCAL_SYMS is a pointer to the swapped in local symbols.
7777 LOCAL_SECTIONS is an array giving the section in the input file
7778 corresponding to the st_shndx field of each local symbol.
7780 The global hash table entry for the global symbols can be found
7781 via elf_sym_hashes (input_bfd).
7783 When generating relocatable output, this function must handle
7784 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7785 going to be the section symbol corresponding to the output
7786 section, which means that the addend must be adjusted
7790 ppc_elf_relocate_section (bfd
*output_bfd
,
7791 struct bfd_link_info
*info
,
7793 asection
*input_section
,
7795 Elf_Internal_Rela
*relocs
,
7796 Elf_Internal_Sym
*local_syms
,
7797 asection
**local_sections
)
7799 Elf_Internal_Shdr
*symtab_hdr
;
7800 struct elf_link_hash_entry
**sym_hashes
;
7801 struct ppc_elf_link_hash_table
*htab
;
7802 Elf_Internal_Rela
*rel
;
7803 Elf_Internal_Rela
*wrel
;
7804 Elf_Internal_Rela
*relend
;
7805 Elf_Internal_Rela outrel
;
7807 bfd_vma
*local_got_offsets
;
7808 bfd_boolean ret
= TRUE
;
7809 bfd_vma d_offset
= (bfd_big_endian (input_bfd
) ? 2 : 0);
7810 bfd_boolean is_vxworks_tls
;
7811 unsigned int picfixup_size
= 0;
7812 struct ppc_elf_relax_info
*relax_info
= NULL
;
7815 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7816 "%ld relocations%s",
7817 input_bfd
, input_section
,
7818 (long) input_section
->reloc_count
,
7819 (bfd_link_relocatable (info
)) ? " (relocatable)" : "");
7822 got2
= bfd_get_section_by_name (input_bfd
, ".got2");
7824 /* Initialize howto table if not already done. */
7825 if (!ppc_elf_howto_table
[R_PPC_ADDR32
])
7826 ppc_elf_howto_init ();
7828 htab
= ppc_elf_hash_table (info
);
7829 local_got_offsets
= elf_local_got_offsets (input_bfd
);
7830 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
7831 sym_hashes
= elf_sym_hashes (input_bfd
);
7832 /* We have to handle relocations in vxworks .tls_vars sections
7833 specially, because the dynamic loader is 'weird'. */
7834 is_vxworks_tls
= (htab
->is_vxworks
&& bfd_link_pic (info
)
7835 && !strcmp (input_section
->output_section
->name
,
7837 if (input_section
->sec_info_type
== SEC_INFO_TYPE_TARGET
)
7838 relax_info
= elf_section_data (input_section
)->sec_info
;
7839 rel
= wrel
= relocs
;
7840 relend
= relocs
+ input_section
->reloc_count
;
7841 for (; rel
< relend
; wrel
++, rel
++)
7843 enum elf_ppc_reloc_type r_type
;
7845 bfd_reloc_status_type r
;
7846 Elf_Internal_Sym
*sym
;
7848 struct elf_link_hash_entry
*h
;
7849 const char *sym_name
;
7850 reloc_howto_type
*howto
;
7851 unsigned long r_symndx
;
7853 bfd_vma branch_bit
, from
;
7854 bfd_boolean unresolved_reloc
;
7856 unsigned int tls_type
, tls_mask
, tls_gd
;
7857 struct plt_entry
**ifunc
;
7858 struct reloc_howto_struct alt_howto
;
7861 r_type
= ELF32_R_TYPE (rel
->r_info
);
7865 unresolved_reloc
= FALSE
;
7867 r_symndx
= ELF32_R_SYM (rel
->r_info
);
7869 if (r_symndx
< symtab_hdr
->sh_info
)
7871 sym
= local_syms
+ r_symndx
;
7872 sec
= local_sections
[r_symndx
];
7873 sym_name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
, sec
);
7875 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
7879 bfd_boolean ignored
;
7881 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
7882 r_symndx
, symtab_hdr
, sym_hashes
,
7884 unresolved_reloc
, warned
, ignored
);
7886 sym_name
= h
->root
.root
.string
;
7889 if (sec
!= NULL
&& discarded_section (sec
))
7891 /* For relocs against symbols from removed linkonce sections,
7892 or sections discarded by a linker script, we just want the
7893 section contents zeroed. Avoid any special processing. */
7895 if (r_type
< R_PPC_max
)
7896 howto
= ppc_elf_howto_table
[r_type
];
7898 _bfd_clear_contents (howto
, input_bfd
, input_section
,
7899 contents
+ rel
->r_offset
);
7900 wrel
->r_offset
= rel
->r_offset
;
7904 /* For ld -r, remove relocations in debug sections against
7905 sections defined in discarded sections. Not done for
7906 non-debug to preserve relocs in .eh_frame which the
7907 eh_frame editing code expects to be present. */
7908 if (bfd_link_relocatable (info
)
7909 && (input_section
->flags
& SEC_DEBUGGING
))
7915 if (bfd_link_relocatable (info
))
7918 && r_type
== R_PPC_PLTREL24
7919 && rel
->r_addend
!= 0)
7921 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7922 addend specifies the GOT pointer offset within .got2. */
7923 rel
->r_addend
+= got2
->output_offset
;
7925 if (r_type
!= R_PPC_RELAX_PLT
7926 && r_type
!= R_PPC_RELAX_PLTREL24
7927 && r_type
!= R_PPC_RELAX
)
7931 /* TLS optimizations. Replace instruction sequences and relocs
7932 based on information we collected in tls_optimize. We edit
7933 RELOCS so that --emit-relocs will output something sensible
7934 for the final instruction stream. */
7938 tls_mask
= ((struct ppc_elf_link_hash_entry
*) h
)->tls_mask
;
7939 else if (local_got_offsets
!= NULL
)
7941 struct plt_entry
**local_plt
;
7944 = (struct plt_entry
**) (local_got_offsets
+ symtab_hdr
->sh_info
);
7945 lgot_masks
= (char *) (local_plt
+ symtab_hdr
->sh_info
);
7946 tls_mask
= lgot_masks
[r_symndx
];
7949 /* Ensure reloc mapping code below stays sane. */
7950 if ((R_PPC_GOT_TLSLD16
& 3) != (R_PPC_GOT_TLSGD16
& 3)
7951 || (R_PPC_GOT_TLSLD16_LO
& 3) != (R_PPC_GOT_TLSGD16_LO
& 3)
7952 || (R_PPC_GOT_TLSLD16_HI
& 3) != (R_PPC_GOT_TLSGD16_HI
& 3)
7953 || (R_PPC_GOT_TLSLD16_HA
& 3) != (R_PPC_GOT_TLSGD16_HA
& 3)
7954 || (R_PPC_GOT_TLSLD16
& 3) != (R_PPC_GOT_TPREL16
& 3)
7955 || (R_PPC_GOT_TLSLD16_LO
& 3) != (R_PPC_GOT_TPREL16_LO
& 3)
7956 || (R_PPC_GOT_TLSLD16_HI
& 3) != (R_PPC_GOT_TPREL16_HI
& 3)
7957 || (R_PPC_GOT_TLSLD16_HA
& 3) != (R_PPC_GOT_TPREL16_HA
& 3))
7964 case R_PPC_GOT_TPREL16
:
7965 case R_PPC_GOT_TPREL16_LO
:
7966 if ((tls_mask
& TLS_TLS
) != 0
7967 && (tls_mask
& TLS_TPREL
) == 0)
7971 insn
= bfd_get_32 (input_bfd
,
7972 contents
+ rel
->r_offset
- d_offset
);
7974 insn
|= 0x3c020000; /* addis 0,2,0 */
7975 bfd_put_32 (input_bfd
, insn
,
7976 contents
+ rel
->r_offset
- d_offset
);
7977 r_type
= R_PPC_TPREL16_HA
;
7978 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
7983 if ((tls_mask
& TLS_TLS
) != 0
7984 && (tls_mask
& TLS_TPREL
) == 0)
7988 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
7989 insn
= _bfd_elf_ppc_at_tls_transform (insn
, 2);
7992 bfd_put_32 (input_bfd
, insn
, contents
+ rel
->r_offset
);
7993 r_type
= R_PPC_TPREL16_LO
;
7994 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
7996 /* Was PPC_TLS which sits on insn boundary, now
7997 PPC_TPREL16_LO which is at low-order half-word. */
7998 rel
->r_offset
+= d_offset
;
8002 case R_PPC_GOT_TLSGD16_HI
:
8003 case R_PPC_GOT_TLSGD16_HA
:
8004 tls_gd
= TLS_TPRELGD
;
8005 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_GD
) == 0)
8009 case R_PPC_GOT_TLSLD16_HI
:
8010 case R_PPC_GOT_TLSLD16_HA
:
8011 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_LD
) == 0)
8014 if ((tls_mask
& tls_gd
) != 0)
8015 r_type
= (((r_type
- (R_PPC_GOT_TLSGD16
& 3)) & 3)
8016 + R_PPC_GOT_TPREL16
);
8019 rel
->r_offset
-= d_offset
;
8020 bfd_put_32 (input_bfd
, NOP
, contents
+ rel
->r_offset
);
8021 r_type
= R_PPC_NONE
;
8023 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
8027 case R_PPC_GOT_TLSGD16
:
8028 case R_PPC_GOT_TLSGD16_LO
:
8029 tls_gd
= TLS_TPRELGD
;
8030 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_GD
) == 0)
8034 case R_PPC_GOT_TLSLD16
:
8035 case R_PPC_GOT_TLSLD16_LO
:
8036 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_LD
) == 0)
8038 unsigned int insn1
, insn2
;
8042 offset
= (bfd_vma
) -1;
8043 /* If not using the newer R_PPC_TLSGD/LD to mark
8044 __tls_get_addr calls, we must trust that the call
8045 stays with its arg setup insns, ie. that the next
8046 reloc is the __tls_get_addr call associated with
8047 the current reloc. Edit both insns. */
8048 if (input_section
->has_tls_get_addr_call
8050 && branch_reloc_hash_match (input_bfd
, rel
+ 1,
8051 htab
->tls_get_addr
))
8052 offset
= rel
[1].r_offset
;
8053 /* We read the low GOT_TLS insn because we need to keep
8054 the destination reg. It may be something other than
8055 the usual r3, and moved to r3 before the call by
8056 intervening code. */
8057 insn1
= bfd_get_32 (input_bfd
,
8058 contents
+ rel
->r_offset
- d_offset
);
8059 if ((tls_mask
& tls_gd
) != 0)
8062 insn1
&= (0x1f << 21) | (0x1f << 16);
8063 insn1
|= 32 << 26; /* lwz */
8064 if (offset
!= (bfd_vma
) -1)
8066 rel
[1].r_info
= ELF32_R_INFO (STN_UNDEF
, R_PPC_NONE
);
8067 insn2
= 0x7c631214; /* add 3,3,2 */
8068 bfd_put_32 (input_bfd
, insn2
, contents
+ offset
);
8070 r_type
= (((r_type
- (R_PPC_GOT_TLSGD16
& 3)) & 3)
8071 + R_PPC_GOT_TPREL16
);
8072 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
8077 insn1
&= 0x1f << 21;
8078 insn1
|= 0x3c020000; /* addis r,2,0 */
8081 /* Was an LD reloc. */
8083 r_symndx
< symtab_hdr
->sh_info
;
8085 if (local_sections
[r_symndx
] == sec
)
8087 if (r_symndx
>= symtab_hdr
->sh_info
)
8088 r_symndx
= STN_UNDEF
;
8089 rel
->r_addend
= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
8090 if (r_symndx
!= STN_UNDEF
)
8091 rel
->r_addend
-= (local_syms
[r_symndx
].st_value
8092 + sec
->output_offset
8093 + sec
->output_section
->vma
);
8095 r_type
= R_PPC_TPREL16_HA
;
8096 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
8097 if (offset
!= (bfd_vma
) -1)
8099 rel
[1].r_info
= ELF32_R_INFO (r_symndx
, R_PPC_TPREL16_LO
);
8100 rel
[1].r_offset
= offset
+ d_offset
;
8101 rel
[1].r_addend
= rel
->r_addend
;
8102 insn2
= 0x38630000; /* addi 3,3,0 */
8103 bfd_put_32 (input_bfd
, insn2
, contents
+ offset
);
8106 bfd_put_32 (input_bfd
, insn1
,
8107 contents
+ rel
->r_offset
- d_offset
);
8110 /* We changed the symbol on an LD reloc. Start over
8111 in order to get h, sym, sec etc. right. */
8118 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_GD
) == 0)
8121 bfd_vma offset
= rel
->r_offset
;
8123 if ((tls_mask
& TLS_TPRELGD
) != 0)
8126 r_type
= R_PPC_NONE
;
8127 insn2
= 0x7c631214; /* add 3,3,2 */
8132 r_type
= R_PPC_TPREL16_LO
;
8133 rel
->r_offset
+= d_offset
;
8134 insn2
= 0x38630000; /* addi 3,3,0 */
8136 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
8137 bfd_put_32 (input_bfd
, insn2
, contents
+ offset
);
8138 /* Zap the reloc on the _tls_get_addr call too. */
8139 BFD_ASSERT (offset
== rel
[1].r_offset
);
8140 rel
[1].r_info
= ELF32_R_INFO (STN_UNDEF
, R_PPC_NONE
);
8145 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_LD
) == 0)
8150 r_symndx
< symtab_hdr
->sh_info
;
8152 if (local_sections
[r_symndx
] == sec
)
8154 if (r_symndx
>= symtab_hdr
->sh_info
)
8155 r_symndx
= STN_UNDEF
;
8156 rel
->r_addend
= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
8157 if (r_symndx
!= STN_UNDEF
)
8158 rel
->r_addend
-= (local_syms
[r_symndx
].st_value
8159 + sec
->output_offset
8160 + sec
->output_section
->vma
);
8162 rel
->r_info
= ELF32_R_INFO (r_symndx
, R_PPC_TPREL16_LO
);
8163 rel
->r_offset
+= d_offset
;
8164 insn2
= 0x38630000; /* addi 3,3,0 */
8165 bfd_put_32 (input_bfd
, insn2
,
8166 contents
+ rel
->r_offset
- d_offset
);
8167 /* Zap the reloc on the _tls_get_addr call too. */
8168 BFD_ASSERT (rel
->r_offset
- d_offset
== rel
[1].r_offset
);
8169 rel
[1].r_info
= ELF32_R_INFO (STN_UNDEF
, R_PPC_NONE
);
8175 /* Handle other relocations that tweak non-addend part of insn. */
8182 /* Branch taken prediction relocations. */
8183 case R_PPC_ADDR14_BRTAKEN
:
8184 case R_PPC_REL14_BRTAKEN
:
8185 branch_bit
= BRANCH_PREDICT_BIT
;
8188 /* Branch not taken prediction relocations. */
8189 case R_PPC_ADDR14_BRNTAKEN
:
8190 case R_PPC_REL14_BRNTAKEN
:
8194 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
8195 insn
&= ~BRANCH_PREDICT_BIT
;
8198 from
= (rel
->r_offset
8199 + input_section
->output_offset
8200 + input_section
->output_section
->vma
);
8202 /* Invert 'y' bit if not the default. */
8203 if ((bfd_signed_vma
) (relocation
+ rel
->r_addend
- from
) < 0)
8204 insn
^= BRANCH_PREDICT_BIT
;
8206 bfd_put_32 (input_bfd
, insn
, contents
+ rel
->r_offset
);
8211 if (ELIMINATE_COPY_RELOCS
8215 && ppc_elf_hash_entry (h
)->has_addr16_ha
8216 && ppc_elf_hash_entry (h
)->has_addr16_lo
8217 && htab
->params
->pic_fixup
> 0)
8219 /* Convert lis;addi or lis;load/store accessing a protected
8220 variable defined in a shared library to PIC. */
8223 if (r_type
== R_PPC_ADDR16_HA
)
8225 insn
= bfd_get_32 (input_bfd
,
8226 contents
+ rel
->r_offset
- d_offset
);
8227 if ((insn
& (0x3f << 26)) == (15u << 26)
8228 && (insn
& (0x1f << 16)) == 0 /* lis */)
8234 p
= (contents
+ input_section
->size
8235 - relax_info
->workaround_size
8236 - relax_info
->picfixup_size
8238 off
= (p
- contents
) - (rel
->r_offset
- d_offset
);
8239 if (off
> 0x1fffffc || (off
& 3) != 0)
8240 info
->callbacks
->einfo
8241 (_("%H: fixup branch overflow\n"),
8242 input_bfd
, input_section
, rel
->r_offset
);
8244 bfd_put_32 (input_bfd
, B
| off
,
8245 contents
+ rel
->r_offset
- d_offset
);
8246 got_addr
= (htab
->elf
.sgot
->output_section
->vma
8247 + htab
->elf
.sgot
->output_offset
8248 + (h
->got
.offset
& ~1));
8249 wrel
->r_offset
= (p
- contents
) + d_offset
;
8250 wrel
->r_info
= ELF32_R_INFO (0, R_PPC_ADDR16_HA
);
8251 wrel
->r_addend
= got_addr
;
8253 insn
|= ((unsigned int )(got_addr
+ 0x8000) >> 16) & 0xffff;
8254 bfd_put_32 (input_bfd
, insn
, p
);
8256 /* Convert lis to lwz, loading address from GOT. */
8258 insn
^= (32u ^ 15u) << 26;
8259 insn
|= (insn
& (0x1f << 21)) >> 5;
8260 insn
|= got_addr
& 0xffff;
8261 bfd_put_32 (input_bfd
, insn
, p
+ 4);
8263 bfd_put_32 (input_bfd
, B
| ((-4 - off
) & 0x3ffffff), p
+ 8);
8264 picfixup_size
+= 12;
8266 /* Use one of the spare relocs, so --emit-relocs
8267 output is reasonable. */
8268 memmove (rel
+ 1, rel
, (relend
- rel
- 1) * sizeof (*rel
));
8270 rel
->r_offset
= wrel
[-1].r_offset
+ 4;
8271 rel
->r_info
= ELF32_R_INFO (0, R_PPC_ADDR16_LO
);
8272 rel
->r_addend
= wrel
[-1].r_addend
;
8274 /* Continue on as if we had a got reloc, to output
8276 r_type
= R_PPC_GOT16_LO
;
8279 info
->callbacks
->einfo
8280 /* xgettext:c-format */
8281 (_("%H: error: %s with unexpected instruction %x\n"),
8282 input_bfd
, input_section
, rel
->r_offset
,
8283 "R_PPC_ADDR16_HA", insn
);
8285 else if (r_type
== R_PPC_ADDR16_LO
)
8287 insn
= bfd_get_32 (input_bfd
,
8288 contents
+ rel
->r_offset
- d_offset
);
8289 if ((insn
& (0x3f << 26)) == 14u << 26 /* addi */
8290 || (insn
& (0x3f << 26)) == 32u << 26 /* lwz */
8291 || (insn
& (0x3f << 26)) == 34u << 26 /* lbz */
8292 || (insn
& (0x3f << 26)) == 36u << 26 /* stw */
8293 || (insn
& (0x3f << 26)) == 38u << 26 /* stb */
8294 || (insn
& (0x3f << 26)) == 40u << 26 /* lhz */
8295 || (insn
& (0x3f << 26)) == 42u << 26 /* lha */
8296 || (insn
& (0x3f << 26)) == 44u << 26 /* sth */
8297 || (insn
& (0x3f << 26)) == 46u << 26 /* lmw */
8298 || (insn
& (0x3f << 26)) == 47u << 26 /* stmw */
8299 || (insn
& (0x3f << 26)) == 48u << 26 /* lfs */
8300 || (insn
& (0x3f << 26)) == 50u << 26 /* lfd */
8301 || (insn
& (0x3f << 26)) == 52u << 26 /* stfs */
8302 || (insn
& (0x3f << 26)) == 54u << 26 /* stfd */
8303 || ((insn
& (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8305 || ((insn
& (0x3f << 26)) == 62u << 26 /* std, stmd */
8306 && ((insn
& 3) == 0 || (insn
& 3) == 3)))
8308 /* Arrange to apply the reloc addend, if any. */
8310 unresolved_reloc
= FALSE
;
8311 rel
->r_info
= ELF32_R_INFO (0, r_type
);
8314 info
->callbacks
->einfo
8315 /* xgettext:c-format */
8316 (_("%H: error: %s with unexpected instruction %x\n"),
8317 input_bfd
, input_section
, rel
->r_offset
,
8318 "R_PPC_ADDR16_LO", insn
);
8323 if (!htab
->is_vxworks
)
8325 struct plt_entry
*ent
;
8329 if (h
->type
== STT_GNU_IFUNC
)
8330 ifunc
= &h
->plt
.plist
;
8332 else if (local_got_offsets
!= NULL
8333 && ELF_ST_TYPE (sym
->st_info
) == STT_GNU_IFUNC
)
8335 struct plt_entry
**local_plt
;
8337 local_plt
= (struct plt_entry
**) (local_got_offsets
8338 + symtab_hdr
->sh_info
);
8339 ifunc
= local_plt
+ r_symndx
;
8344 && (!bfd_link_pic (info
)
8345 || is_branch_reloc (r_type
)))
8348 if (r_type
== R_PPC_PLTREL24
&& bfd_link_pic (info
))
8349 addend
= rel
->r_addend
;
8350 ent
= find_plt_ent (ifunc
, got2
, addend
);
8354 if (bfd_link_pic (info
)
8356 && htab
->plt_type
!= PLT_NEW
8357 && (!htab
->elf
.dynamic_sections_created
8359 || h
->dynindx
== -1))
8361 /* Uh oh, we are going to create a pic glink stub
8362 for an ifunc (here for h == NULL and later in
8363 finish_dynamic_symbol for h != NULL), and
8364 apparently are using code compiled with
8365 -mbss-plt. The difficulty is that -mbss-plt code
8366 gives no indication via a magic PLTREL24 addend
8367 whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or
8368 is pointing into a .got2 section (and how far
8370 info
->callbacks
->einfo
8371 /* xgettext:c-format */
8372 (_("%X%H: unsupported bss-plt -fPIC ifunc %s\n"),
8373 input_bfd
, input_section
, rel
->r_offset
, sym_name
);
8375 if (h
== NULL
&& (ent
->plt
.offset
& 1) == 0)
8377 Elf_Internal_Rela rela
;
8380 rela
.r_offset
= (htab
->elf
.iplt
->output_section
->vma
8381 + htab
->elf
.iplt
->output_offset
8383 rela
.r_info
= ELF32_R_INFO (0, R_PPC_IRELATIVE
);
8384 rela
.r_addend
= relocation
;
8385 loc
= htab
->elf
.irelplt
->contents
;
8386 loc
+= (htab
->elf
.irelplt
->reloc_count
++
8387 * sizeof (Elf32_External_Rela
));
8388 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
8390 ent
->plt
.offset
|= 1;
8392 if (h
== NULL
&& (ent
->glink_offset
& 1) == 0)
8394 unsigned char *p
= ((unsigned char *) htab
->glink
->contents
8395 + ent
->glink_offset
);
8396 write_glink_stub (ent
, htab
->elf
.iplt
, p
, info
);
8397 ent
->glink_offset
|= 1;
8400 unresolved_reloc
= FALSE
;
8401 if (htab
->plt_type
== PLT_NEW
8402 || !htab
->elf
.dynamic_sections_created
8404 || h
->dynindx
== -1)
8405 relocation
= (htab
->glink
->output_section
->vma
8406 + htab
->glink
->output_offset
8407 + (ent
->glink_offset
& ~1));
8409 relocation
= (htab
->elf
.splt
->output_section
->vma
8410 + htab
->elf
.splt
->output_offset
8415 addend
= rel
->r_addend
;
8418 if (r_type
< R_PPC_max
)
8419 howto
= ppc_elf_howto_table
[r_type
];
8423 info
->callbacks
->einfo
8424 /* xgettext:c-format */
8425 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
8426 input_bfd
, (int) r_type
, sym_name
);
8428 bfd_set_error (bfd_error_bad_value
);
8436 case R_PPC_EMB_MRKREF
:
8437 case R_PPC_GNU_VTINHERIT
:
8438 case R_PPC_GNU_VTENTRY
:
8441 /* GOT16 relocations. Like an ADDR16 using the symbol's
8442 address in the GOT as relocation value instead of the
8443 symbol's value itself. Also, create a GOT entry for the
8444 symbol and put the symbol value there. */
8445 case R_PPC_GOT_TLSGD16
:
8446 case R_PPC_GOT_TLSGD16_LO
:
8447 case R_PPC_GOT_TLSGD16_HI
:
8448 case R_PPC_GOT_TLSGD16_HA
:
8449 tls_type
= TLS_TLS
| TLS_GD
;
8452 case R_PPC_GOT_TLSLD16
:
8453 case R_PPC_GOT_TLSLD16_LO
:
8454 case R_PPC_GOT_TLSLD16_HI
:
8455 case R_PPC_GOT_TLSLD16_HA
:
8456 tls_type
= TLS_TLS
| TLS_LD
;
8459 case R_PPC_GOT_TPREL16
:
8460 case R_PPC_GOT_TPREL16_LO
:
8461 case R_PPC_GOT_TPREL16_HI
:
8462 case R_PPC_GOT_TPREL16_HA
:
8463 tls_type
= TLS_TLS
| TLS_TPREL
;
8466 case R_PPC_GOT_DTPREL16
:
8467 case R_PPC_GOT_DTPREL16_LO
:
8468 case R_PPC_GOT_DTPREL16_HI
:
8469 case R_PPC_GOT_DTPREL16_HA
:
8470 tls_type
= TLS_TLS
| TLS_DTPREL
;
8474 case R_PPC_GOT16_LO
:
8475 case R_PPC_GOT16_HI
:
8476 case R_PPC_GOT16_HA
:
8480 /* Relocation is to the entry for this symbol in the global
8486 if (htab
->elf
.sgot
== NULL
)
8490 if (tls_type
== (TLS_TLS
| TLS_LD
)
8492 || !h
->def_dynamic
))
8493 offp
= &htab
->tlsld_got
.offset
;
8496 if (!htab
->elf
.dynamic_sections_created
8498 || SYMBOL_REFERENCES_LOCAL (info
, h
)
8499 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
8500 && h
->root
.type
== bfd_link_hash_undefweak
))
8501 /* This is actually a static link, or it is a
8502 -Bsymbolic link and the symbol is defined
8503 locally, or the symbol was forced to be local
8504 because of a version file. */
8509 unresolved_reloc
= FALSE
;
8511 offp
= &h
->got
.offset
;
8515 if (local_got_offsets
== NULL
)
8517 offp
= &local_got_offsets
[r_symndx
];
8520 /* The offset must always be a multiple of 4. We use the
8521 least significant bit to record whether we have already
8522 processed this entry. */
8528 unsigned int tls_m
= (tls_mask
8529 & (TLS_LD
| TLS_GD
| TLS_DTPREL
8530 | TLS_TPREL
| TLS_TPRELGD
));
8532 if (offp
== &htab
->tlsld_got
.offset
)
8538 /* We might have multiple got entries for this sym.
8539 Initialize them all. */
8544 if ((tls_m
& TLS_LD
) != 0)
8546 tls_ty
= TLS_TLS
| TLS_LD
;
8549 else if ((tls_m
& TLS_GD
) != 0)
8551 tls_ty
= TLS_TLS
| TLS_GD
;
8554 else if ((tls_m
& TLS_DTPREL
) != 0)
8556 tls_ty
= TLS_TLS
| TLS_DTPREL
;
8557 tls_m
&= ~TLS_DTPREL
;
8559 else if ((tls_m
& (TLS_TPREL
| TLS_TPRELGD
)) != 0)
8561 tls_ty
= TLS_TLS
| TLS_TPREL
;
8565 /* Generate relocs for the dynamic linker. */
8567 || (bfd_link_pic (info
)
8569 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
8570 || h
->root
.type
!= bfd_link_hash_undefweak
8571 || offp
== &htab
->tlsld_got
.offset
)))
8573 asection
*rsec
= htab
->elf
.srelgot
;
8577 rsec
= htab
->elf
.irelplt
;
8578 outrel
.r_offset
= (htab
->elf
.sgot
->output_section
->vma
8579 + htab
->elf
.sgot
->output_offset
8581 outrel
.r_addend
= 0;
8582 if (tls_ty
& (TLS_LD
| TLS_GD
))
8584 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_DTPMOD32
);
8585 if (tls_ty
== (TLS_TLS
| TLS_GD
))
8587 loc
= rsec
->contents
;
8588 loc
+= (rsec
->reloc_count
++
8589 * sizeof (Elf32_External_Rela
));
8590 bfd_elf32_swap_reloca_out (output_bfd
,
8592 outrel
.r_offset
+= 4;
8594 = ELF32_R_INFO (indx
, R_PPC_DTPREL32
);
8597 else if (tls_ty
== (TLS_TLS
| TLS_DTPREL
))
8598 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_DTPREL32
);
8599 else if (tls_ty
== (TLS_TLS
| TLS_TPREL
))
8600 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_TPREL32
);
8602 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_GLOB_DAT
);
8603 else if (ifunc
!= NULL
)
8604 outrel
.r_info
= ELF32_R_INFO (0, R_PPC_IRELATIVE
);
8606 outrel
.r_info
= ELF32_R_INFO (0, R_PPC_RELATIVE
);
8607 if (indx
== 0 && tls_ty
!= (TLS_TLS
| TLS_LD
))
8609 outrel
.r_addend
+= relocation
;
8610 if (tls_ty
& (TLS_GD
| TLS_DTPREL
| TLS_TPREL
))
8612 if (htab
->elf
.tls_sec
== NULL
)
8613 outrel
.r_addend
= 0;
8615 outrel
.r_addend
-= htab
->elf
.tls_sec
->vma
;
8618 loc
= rsec
->contents
;
8619 loc
+= (rsec
->reloc_count
++
8620 * sizeof (Elf32_External_Rela
));
8621 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
8624 /* Init the .got section contents if we're not
8625 emitting a reloc. */
8628 bfd_vma value
= relocation
;
8629 int tlsopt
= (htab
->plt_type
== PLT_NEW
8630 && !htab
->params
->no_tls_get_addr_opt
8631 && htab
->tls_get_addr
!= NULL
8632 && htab
->tls_get_addr
->plt
.plist
!= NULL
);
8636 if (htab
->elf
.tls_sec
== NULL
)
8640 if (tls_ty
& TLS_LD
)
8643 value
-= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
8644 if ((tls_ty
& TLS_TPREL
)
8645 || (tlsopt
&& !(tls_ty
& TLS_DTPREL
)))
8646 value
+= DTP_OFFSET
- TP_OFFSET
;
8649 if (tls_ty
& (TLS_LD
| TLS_GD
))
8651 bfd_put_32 (input_bfd
, value
,
8652 htab
->elf
.sgot
->contents
+ off
+ 4);
8656 bfd_put_32 (input_bfd
, value
,
8657 htab
->elf
.sgot
->contents
+ off
);
8661 if (tls_ty
& (TLS_LD
| TLS_GD
))
8670 if (off
>= (bfd_vma
) -2)
8673 if ((tls_type
& TLS_TLS
) != 0)
8675 if (tls_type
!= (TLS_TLS
| TLS_LD
))
8677 if ((tls_mask
& TLS_LD
) != 0
8679 || !h
->def_dynamic
))
8681 if (tls_type
!= (TLS_TLS
| TLS_GD
))
8683 if ((tls_mask
& TLS_GD
) != 0)
8685 if (tls_type
!= (TLS_TLS
| TLS_DTPREL
))
8687 if ((tls_mask
& TLS_DTPREL
) != 0)
8694 /* If here for a picfixup, we're done. */
8695 if (r_type
!= ELF32_R_TYPE (rel
->r_info
))
8698 relocation
= (htab
->elf
.sgot
->output_section
->vma
8699 + htab
->elf
.sgot
->output_offset
8701 - SYM_VAL (htab
->elf
.hgot
));
8703 /* Addends on got relocations don't make much sense.
8704 x+off@got is actually x@got+off, and since the got is
8705 generated by a hash table traversal, the value in the
8706 got at entry m+n bears little relation to the entry m. */
8708 info
->callbacks
->einfo
8709 /* xgettext:c-format */
8710 (_("%H: non-zero addend on %s reloc against `%s'\n"),
8711 input_bfd
, input_section
, rel
->r_offset
,
8717 /* Relocations that need no special processing. */
8718 case R_PPC_LOCAL24PC
:
8719 /* It makes no sense to point a local relocation
8720 at a symbol not in this object. */
8721 if (unresolved_reloc
)
8723 (*info
->callbacks
->undefined_symbol
) (info
,
8724 h
->root
.root
.string
,
8731 if (h
!= NULL
&& h
->type
== STT_GNU_IFUNC
&& bfd_link_pic (info
))
8733 /* @local on an ifunc does not really make sense since
8734 the ifunc resolver can take you anywhere. More
8735 seriously, calls to ifuncs must go through a plt call
8736 stub, and for pic the plt call stubs uses r30 to
8737 access the PLT. The problem is that a call that is
8738 local won't have the +32k reloc addend trick marking
8739 -fPIC code, so the linker won't know whether r30 is
8740 _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section. */
8741 /* xgettext:c-format */
8742 info
->callbacks
->einfo (_("%X%H: @local call to ifunc %s\n"),
8743 input_bfd
, input_section
, rel
->r_offset
,
8744 h
->root
.root
.string
);
8748 case R_PPC_DTPREL16
:
8749 case R_PPC_DTPREL16_LO
:
8750 case R_PPC_DTPREL16_HI
:
8751 case R_PPC_DTPREL16_HA
:
8752 if (htab
->elf
.tls_sec
!= NULL
)
8753 addend
-= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
8756 /* Relocations that may need to be propagated if this is a shared
8759 case R_PPC_TPREL16_LO
:
8760 case R_PPC_TPREL16_HI
:
8761 case R_PPC_TPREL16_HA
:
8763 && h
->root
.type
== bfd_link_hash_undefweak
8764 && h
->dynindx
== -1)
8766 /* Make this relocation against an undefined weak symbol
8767 resolve to zero. This is really just a tweak, since
8768 code using weak externs ought to check that they are
8769 defined before using them. */
8770 bfd_byte
*p
= contents
+ rel
->r_offset
- d_offset
;
8771 unsigned int insn
= bfd_get_32 (input_bfd
, p
);
8772 insn
= _bfd_elf_ppc_at_tprel_transform (insn
, 2);
8774 bfd_put_32 (input_bfd
, insn
, p
);
8777 if (htab
->elf
.tls_sec
!= NULL
)
8778 addend
-= htab
->elf
.tls_sec
->vma
+ TP_OFFSET
;
8779 /* The TPREL16 relocs shouldn't really be used in shared
8780 libs as they will result in DT_TEXTREL being set, but
8781 support them anyway. */
8785 if (htab
->elf
.tls_sec
!= NULL
)
8786 addend
-= htab
->elf
.tls_sec
->vma
+ TP_OFFSET
;
8789 case R_PPC_DTPREL32
:
8790 if (htab
->elf
.tls_sec
!= NULL
)
8791 addend
-= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
8794 case R_PPC_DTPMOD32
:
8800 case R_PPC_REL16_LO
:
8801 case R_PPC_REL16_HI
:
8802 case R_PPC_REL16_HA
:
8803 case R_PPC_REL16DX_HA
:
8807 if (h
== NULL
|| h
== htab
->elf
.hgot
)
8813 case R_PPC_ADDR16_LO
:
8814 case R_PPC_ADDR16_HI
:
8815 case R_PPC_ADDR16_HA
:
8820 case R_PPC_VLE_REL8
:
8821 case R_PPC_VLE_REL15
:
8822 case R_PPC_VLE_REL24
:
8825 case R_PPC_REL14_BRTAKEN
:
8826 case R_PPC_REL14_BRNTAKEN
:
8827 /* If these relocations are not to a named symbol, they can be
8828 handled right here, no need to bother the dynamic linker. */
8829 if (SYMBOL_CALLS_LOCAL (info
, h
)
8830 || h
== htab
->elf
.hgot
)
8836 case R_PPC_ADDR14_BRTAKEN
:
8837 case R_PPC_ADDR14_BRNTAKEN
:
8838 if (h
!= NULL
&& !bfd_link_pic (info
))
8843 if ((input_section
->flags
& SEC_ALLOC
) == 0
8847 if ((bfd_link_pic (info
)
8849 && ((h
->root
.type
== bfd_link_hash_undefined
8850 && (ELF_ST_VISIBILITY (h
->other
) == STV_HIDDEN
8851 || ELF_ST_VISIBILITY (h
->other
) == STV_INTERNAL
))
8852 || (h
->root
.type
== bfd_link_hash_undefweak
8853 && ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)))
8854 && (must_be_dyn_reloc (info
, r_type
)
8855 || !SYMBOL_CALLS_LOCAL (info
, h
)))
8856 || (ELIMINATE_COPY_RELOCS
8857 && !bfd_link_pic (info
)
8862 && !(h
->protected_def
8863 && ppc_elf_hash_entry (h
)->has_addr16_ha
8864 && ppc_elf_hash_entry (h
)->has_addr16_lo
8865 && htab
->params
->pic_fixup
> 0)))
8871 fprintf (stderr
, "ppc_elf_relocate_section needs to "
8872 "create relocation for %s\n",
8873 (h
&& h
->root
.root
.string
8874 ? h
->root
.root
.string
: "<unknown>"));
8877 /* When generating a shared object, these relocations
8878 are copied into the output file to be resolved at run
8880 sreloc
= elf_section_data (input_section
)->sreloc
;
8882 sreloc
= htab
->elf
.irelplt
;
8887 outrel
.r_offset
= _bfd_elf_section_offset (output_bfd
, info
,
8890 if (outrel
.r_offset
== (bfd_vma
) -1
8891 || outrel
.r_offset
== (bfd_vma
) -2)
8892 skip
= (int) outrel
.r_offset
;
8893 outrel
.r_offset
+= (input_section
->output_section
->vma
8894 + input_section
->output_offset
);
8897 memset (&outrel
, 0, sizeof outrel
);
8899 && (h
->root
.type
== bfd_link_hash_undefined
8900 || h
->root
.type
== bfd_link_hash_undefweak
))
8901 || !SYMBOL_REFERENCES_LOCAL (info
, h
))
8903 BFD_ASSERT (h
->dynindx
!= -1);
8904 unresolved_reloc
= FALSE
;
8905 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
8906 outrel
.r_addend
= rel
->r_addend
;
8910 outrel
.r_addend
= relocation
+ rel
->r_addend
;
8912 if (r_type
!= R_PPC_ADDR32
)
8918 /* If we get here when building a static
8919 executable, then the libc startup function
8920 responsible for applying indirect function
8921 relocations is going to complain about
8923 If we get here when building a dynamic
8924 executable, it will be because we have
8925 a text relocation. The dynamic loader
8926 will set the text segment writable and
8927 non-executable to apply text relocations.
8928 So we'll segfault when trying to run the
8929 indirection function to resolve the reloc. */
8930 info
->callbacks
->einfo
8931 /* xgettext:c-format */
8932 (_("%H: relocation %s for indirect "
8933 "function %s unsupported\n"),
8934 input_bfd
, input_section
, rel
->r_offset
,
8939 else if (r_symndx
== STN_UNDEF
|| bfd_is_abs_section (sec
))
8941 else if (sec
== NULL
|| sec
->owner
== NULL
)
8943 bfd_set_error (bfd_error_bad_value
);
8950 /* We are turning this relocation into one
8951 against a section symbol. It would be
8952 proper to subtract the symbol's value,
8953 osec->vma, from the emitted reloc addend,
8954 but ld.so expects buggy relocs.
8955 FIXME: Why not always use a zero index? */
8956 osec
= sec
->output_section
;
8957 indx
= elf_section_data (osec
)->dynindx
;
8960 osec
= htab
->elf
.text_index_section
;
8961 indx
= elf_section_data (osec
)->dynindx
;
8963 BFD_ASSERT (indx
!= 0);
8966 printf ("indx=%ld section=%s flags=%08x name=%s\n",
8967 indx
, osec
->name
, osec
->flags
,
8968 h
->root
.root
.string
);
8972 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
8974 else if (ifunc
!= NULL
)
8975 outrel
.r_info
= ELF32_R_INFO (0, R_PPC_IRELATIVE
);
8977 outrel
.r_info
= ELF32_R_INFO (0, R_PPC_RELATIVE
);
8980 loc
= sreloc
->contents
;
8981 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
8982 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
8987 /* This reloc will be computed at runtime. Clear the memory
8988 so that it contains a predictable value for prelink. */
8991 relocation
= howto
->pc_relative
? outrel
.r_offset
: 0;
8996 else if (r_type
== R_PPC_DTPMOD32
8997 && htab
->plt_type
== PLT_NEW
8998 && !htab
->params
->no_tls_get_addr_opt
8999 && htab
->tls_get_addr
!= NULL
9000 && htab
->tls_get_addr
->plt
.plist
!= NULL
)
9002 /* Set up for __tls_get_addr_opt stub when this entry
9003 does not have dynamic relocs. */
9005 /* Set up the next word for local dynamic. If it turns
9006 out to be global dynamic, the reloc will overwrite
9008 if (rel
->r_offset
+ 8 <= input_section
->size
)
9009 bfd_put_32 (input_bfd
, DTP_OFFSET
- TP_OFFSET
,
9010 contents
+ rel
->r_offset
+ 4);
9012 else if (r_type
== R_PPC_DTPREL32
9013 && htab
->plt_type
== PLT_NEW
9014 && !htab
->params
->no_tls_get_addr_opt
9015 && htab
->tls_get_addr
!= NULL
9016 && htab
->tls_get_addr
->plt
.plist
!= NULL
9018 && rel
[-1].r_info
== ELF32_R_INFO (r_symndx
, R_PPC_DTPMOD32
)
9019 && rel
[-1].r_offset
+ 4 == rel
->r_offset
)
9021 /* __tls_get_addr_opt stub value. */
9022 addend
+= DTP_OFFSET
- TP_OFFSET
;
9026 case R_PPC_RELAX_PLT
:
9027 case R_PPC_RELAX_PLTREL24
:
9030 struct plt_entry
*ent
;
9031 bfd_vma got2_addend
= 0;
9033 if (r_type
== R_PPC_RELAX_PLTREL24
)
9035 if (bfd_link_pic (info
))
9036 got2_addend
= addend
;
9039 ent
= find_plt_ent (&h
->plt
.plist
, got2
, got2_addend
);
9040 if (htab
->plt_type
== PLT_NEW
)
9041 relocation
= (htab
->glink
->output_section
->vma
9042 + htab
->glink
->output_offset
9043 + ent
->glink_offset
);
9045 relocation
= (htab
->elf
.splt
->output_section
->vma
9046 + htab
->elf
.splt
->output_offset
9055 size_t insn_offset
= rel
->r_offset
;
9058 if (bfd_link_pic (info
))
9060 relocation
-= (input_section
->output_section
->vma
9061 + input_section
->output_offset
9062 + rel
->r_offset
- 4);
9063 stub
= shared_stub_entry
;
9064 bfd_put_32 (input_bfd
, stub
[0], contents
+ insn_offset
- 12);
9065 bfd_put_32 (input_bfd
, stub
[1], contents
+ insn_offset
- 8);
9066 bfd_put_32 (input_bfd
, stub
[2], contents
+ insn_offset
- 4);
9068 size
= ARRAY_SIZE (shared_stub_entry
) - 3;
9073 size
= ARRAY_SIZE (stub_entry
);
9076 relocation
+= addend
;
9077 if (bfd_link_relocatable (info
))
9080 /* First insn is HA, second is LO. */
9082 insn
|= ((relocation
+ 0x8000) >> 16) & 0xffff;
9083 bfd_put_32 (input_bfd
, insn
, contents
+ insn_offset
);
9087 insn
|= relocation
& 0xffff;
9088 bfd_put_32 (input_bfd
, insn
, contents
+ insn_offset
);
9096 bfd_put_32 (input_bfd
, insn
, contents
+ insn_offset
);
9100 /* Rewrite the reloc and convert one of the trailing nop
9101 relocs to describe this relocation. */
9102 BFD_ASSERT (ELF32_R_TYPE (relend
[-1].r_info
) == R_PPC_NONE
);
9103 /* The relocs are at the bottom 2 bytes */
9104 wrel
->r_offset
= rel
->r_offset
+ d_offset
;
9105 wrel
->r_info
= ELF32_R_INFO (r_symndx
, R_PPC_ADDR16_HA
);
9106 wrel
->r_addend
= rel
->r_addend
;
9107 memmove (wrel
+ 1, wrel
, (relend
- wrel
- 1) * sizeof (*wrel
));
9109 wrel
->r_offset
+= 4;
9110 wrel
->r_info
= ELF32_R_INFO (r_symndx
, R_PPC_ADDR16_LO
);
9114 /* Indirect .sdata relocation. */
9115 case R_PPC_EMB_SDAI16
:
9116 BFD_ASSERT (htab
->sdata
[0].section
!= NULL
);
9117 if (!is_static_defined (htab
->sdata
[0].sym
))
9119 unresolved_reloc
= TRUE
;
9123 = elf_finish_pointer_linker_section (input_bfd
, &htab
->sdata
[0],
9124 h
, relocation
, rel
);
9128 /* Indirect .sdata2 relocation. */
9129 case R_PPC_EMB_SDA2I16
:
9130 BFD_ASSERT (htab
->sdata
[1].section
!= NULL
);
9131 if (!is_static_defined (htab
->sdata
[1].sym
))
9133 unresolved_reloc
= TRUE
;
9137 = elf_finish_pointer_linker_section (input_bfd
, &htab
->sdata
[1],
9138 h
, relocation
, rel
);
9142 /* Handle the TOC16 reloc. We want to use the offset within the .got
9143 section, not the actual VMA. This is appropriate when generating
9144 an embedded ELF object, for which the .got section acts like the
9145 AIX .toc section. */
9146 case R_PPC_TOC16
: /* phony GOT16 relocations */
9147 if (sec
== NULL
|| sec
->output_section
== NULL
)
9149 unresolved_reloc
= TRUE
;
9152 BFD_ASSERT (strcmp (bfd_get_section_name (sec
->owner
, sec
),
9154 || strcmp (bfd_get_section_name (sec
->owner
, sec
),
9157 addend
-= sec
->output_section
->vma
+ sec
->output_offset
+ 0x8000;
9160 case R_PPC_PLTREL24
:
9161 if (h
!= NULL
&& ifunc
== NULL
)
9163 struct plt_entry
*ent
;
9165 ent
= find_plt_ent (&h
->plt
.plist
, got2
,
9166 bfd_link_pic (info
) ? addend
: 0);
9168 || htab
->elf
.splt
== NULL
)
9170 /* We didn't make a PLT entry for this symbol. This
9171 happens when statically linking PIC code, or when
9172 using -Bsymbolic. */
9176 /* Relocation is to the entry for this symbol in the
9177 procedure linkage table. */
9178 unresolved_reloc
= FALSE
;
9179 if (htab
->plt_type
== PLT_NEW
)
9180 relocation
= (htab
->glink
->output_section
->vma
9181 + htab
->glink
->output_offset
9182 + ent
->glink_offset
);
9184 relocation
= (htab
->elf
.splt
->output_section
->vma
9185 + htab
->elf
.splt
->output_offset
9190 /* R_PPC_PLTREL24 is rather special. If non-zero, the
9191 addend specifies the GOT pointer offset within .got2.
9192 Don't apply it to the relocation field. */
9196 /* Relocate against _SDA_BASE_. */
9197 case R_PPC_SDAREL16
:
9200 struct elf_link_hash_entry
*sda
= htab
->sdata
[0].sym
;
9203 || sec
->output_section
== NULL
9204 || !is_static_defined (sda
))
9206 unresolved_reloc
= TRUE
;
9209 addend
-= SYM_VAL (sda
);
9211 name
= bfd_get_section_name (output_bfd
, sec
->output_section
);
9212 if (!(strcmp (name
, ".sdata") == 0
9213 || strcmp (name
, ".sbss") == 0))
9215 info
->callbacks
->einfo
9216 /* xgettext:c-format */
9217 (_("%P: %B: the target (%s) of a %s relocation is "
9218 "in the wrong output section (%s)\n"),
9227 /* Relocate against _SDA2_BASE_. */
9228 case R_PPC_EMB_SDA2REL
:
9231 struct elf_link_hash_entry
*sda
= htab
->sdata
[1].sym
;
9234 || sec
->output_section
== NULL
9235 || !is_static_defined (sda
))
9237 unresolved_reloc
= TRUE
;
9240 addend
-= SYM_VAL (sda
);
9242 name
= bfd_get_section_name (output_bfd
, sec
->output_section
);
9243 if (!(strcmp (name
, ".sdata2") == 0
9244 || strcmp (name
, ".sbss2") == 0))
9246 info
->callbacks
->einfo
9247 /* xgettext:c-format */
9248 (_("%P: %B: the target (%s) of a %s relocation is "
9249 "in the wrong output section (%s)\n"),
9258 case R_PPC_VLE_LO16A
:
9259 relocation
= relocation
+ addend
;
9260 ppc_elf_vle_split16 (input_bfd
, input_section
, rel
->r_offset
,
9261 contents
+ rel
->r_offset
, relocation
,
9262 split16a_type
, htab
->params
->vle_reloc_fixup
);
9265 case R_PPC_VLE_LO16D
:
9266 relocation
= relocation
+ addend
;
9267 ppc_elf_vle_split16 (input_bfd
, input_section
, rel
->r_offset
,
9268 contents
+ rel
->r_offset
, relocation
,
9269 split16d_type
, htab
->params
->vle_reloc_fixup
);
9272 case R_PPC_VLE_HI16A
:
9273 relocation
= (relocation
+ addend
) >> 16;
9274 ppc_elf_vle_split16 (input_bfd
, input_section
, rel
->r_offset
,
9275 contents
+ rel
->r_offset
, relocation
,
9276 split16a_type
, htab
->params
->vle_reloc_fixup
);
9279 case R_PPC_VLE_HI16D
:
9280 relocation
= (relocation
+ addend
) >> 16;
9281 ppc_elf_vle_split16 (input_bfd
, input_section
, rel
->r_offset
,
9282 contents
+ rel
->r_offset
, relocation
,
9283 split16d_type
, htab
->params
->vle_reloc_fixup
);
9286 case R_PPC_VLE_HA16A
:
9287 relocation
= (relocation
+ addend
+ 0x8000) >> 16;
9288 ppc_elf_vle_split16 (input_bfd
, input_section
, rel
->r_offset
,
9289 contents
+ rel
->r_offset
, relocation
,
9290 split16a_type
, htab
->params
->vle_reloc_fixup
);
9293 case R_PPC_VLE_HA16D
:
9294 relocation
= (relocation
+ addend
+ 0x8000) >> 16;
9295 ppc_elf_vle_split16 (input_bfd
, input_section
, rel
->r_offset
,
9296 contents
+ rel
->r_offset
, relocation
,
9297 split16d_type
, htab
->params
->vle_reloc_fixup
);
9300 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
9301 case R_PPC_EMB_SDA21
:
9302 case R_PPC_VLE_SDA21
:
9303 case R_PPC_EMB_RELSDA
:
9304 case R_PPC_VLE_SDA21_LO
:
9309 struct elf_link_hash_entry
*sda
= NULL
;
9311 if (sec
== NULL
|| sec
->output_section
== NULL
)
9313 unresolved_reloc
= TRUE
;
9317 name
= bfd_get_section_name (output_bfd
, sec
->output_section
);
9318 if (strcmp (name
, ".sdata") == 0
9319 || strcmp (name
, ".sbss") == 0)
9322 sda
= htab
->sdata
[0].sym
;
9324 else if (strcmp (name
, ".sdata2") == 0
9325 || strcmp (name
, ".sbss2") == 0)
9328 sda
= htab
->sdata
[1].sym
;
9330 else if (strcmp (name
, ".PPC.EMB.sdata0") == 0
9331 || strcmp (name
, ".PPC.EMB.sbss0") == 0)
9337 info
->callbacks
->einfo
9338 /* xgettext:c-format */
9339 (_("%P: %B: the target (%s) of a %s relocation is "
9340 "in the wrong output section (%s)\n"),
9346 bfd_set_error (bfd_error_bad_value
);
9353 if (!is_static_defined (sda
))
9355 unresolved_reloc
= TRUE
;
9358 addend
-= SYM_VAL (sda
);
9361 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
9363 && (r_type
== R_PPC_VLE_SDA21
9364 || r_type
== R_PPC_VLE_SDA21_LO
))
9366 relocation
= relocation
+ addend
;
9369 /* Force e_li insn, keeping RT from original insn. */
9373 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
9374 /* Top 4 bits of value to 17..20. */
9375 insn
|= (relocation
& 0xf0000) >> 5;
9376 /* Next 5 bits of the value to 11..15. */
9377 insn
|= (relocation
& 0xf800) << 5;
9378 /* And the final 11 bits of the value to bits 21 to 31. */
9379 insn
|= relocation
& 0x7ff;
9381 bfd_put_32 (input_bfd
, insn
, contents
+ rel
->r_offset
);
9383 if (r_type
== R_PPC_VLE_SDA21
9384 && ((relocation
+ 0x80000) & 0xffffffff) > 0x100000)
9388 else if (r_type
== R_PPC_EMB_SDA21
9389 || r_type
== R_PPC_VLE_SDA21
9390 || r_type
== R_PPC_VLE_SDA21_LO
)
9392 /* Fill in register field. */
9393 insn
= (insn
& ~RA_REGISTER_MASK
) | (reg
<< RA_REGISTER_SHIFT
);
9395 bfd_put_32 (input_bfd
, insn
, contents
+ rel
->r_offset
);
9399 case R_PPC_VLE_SDAREL_LO16A
:
9400 case R_PPC_VLE_SDAREL_LO16D
:
9401 case R_PPC_VLE_SDAREL_HI16A
:
9402 case R_PPC_VLE_SDAREL_HI16D
:
9403 case R_PPC_VLE_SDAREL_HA16A
:
9404 case R_PPC_VLE_SDAREL_HA16D
:
9408 struct elf_link_hash_entry
*sda
= NULL
;
9410 if (sec
== NULL
|| sec
->output_section
== NULL
)
9412 unresolved_reloc
= TRUE
;
9416 name
= bfd_get_section_name (output_bfd
, sec
->output_section
);
9417 if (strcmp (name
, ".sdata") == 0
9418 || strcmp (name
, ".sbss") == 0)
9419 sda
= htab
->sdata
[0].sym
;
9420 else if (strcmp (name
, ".sdata2") == 0
9421 || strcmp (name
, ".sbss2") == 0)
9422 sda
= htab
->sdata
[1].sym
;
9426 /* xgettext:c-format */
9427 (_("%B: the target (%s) of a %s relocation is "
9428 "in the wrong output section (%s)"),
9434 bfd_set_error (bfd_error_bad_value
);
9439 if (sda
== NULL
|| !is_static_defined (sda
))
9441 unresolved_reloc
= TRUE
;
9444 value
= relocation
+ addend
- SYM_VAL (sda
);
9446 if (r_type
== R_PPC_VLE_SDAREL_LO16A
)
9447 ppc_elf_vle_split16 (input_bfd
, input_section
, rel
->r_offset
,
9448 contents
+ rel
->r_offset
, value
,
9450 htab
->params
->vle_reloc_fixup
);
9451 else if (r_type
== R_PPC_VLE_SDAREL_LO16D
)
9452 ppc_elf_vle_split16 (input_bfd
, input_section
, rel
->r_offset
,
9453 contents
+ rel
->r_offset
, value
,
9455 htab
->params
->vle_reloc_fixup
);
9456 else if (r_type
== R_PPC_VLE_SDAREL_HI16A
)
9458 value
= value
>> 16;
9459 ppc_elf_vle_split16 (input_bfd
, input_section
, rel
->r_offset
,
9460 contents
+ rel
->r_offset
, value
,
9462 htab
->params
->vle_reloc_fixup
);
9464 else if (r_type
== R_PPC_VLE_SDAREL_HI16D
)
9466 value
= value
>> 16;
9467 ppc_elf_vle_split16 (input_bfd
, input_section
, rel
->r_offset
,
9468 contents
+ rel
->r_offset
, value
,
9470 htab
->params
->vle_reloc_fixup
);
9472 else if (r_type
== R_PPC_VLE_SDAREL_HA16A
)
9474 value
= (value
+ 0x8000) >> 16;
9475 ppc_elf_vle_split16 (input_bfd
, input_section
, rel
->r_offset
,
9476 contents
+ rel
->r_offset
, value
,
9478 htab
->params
->vle_reloc_fixup
);
9480 else if (r_type
== R_PPC_VLE_SDAREL_HA16D
)
9482 value
= (value
+ 0x8000) >> 16;
9483 ppc_elf_vle_split16 (input_bfd
, input_section
, rel
->r_offset
,
9484 contents
+ rel
->r_offset
, value
,
9486 htab
->params
->vle_reloc_fixup
);
9491 /* Relocate against the beginning of the section. */
9493 case R_PPC_SECTOFF_LO
:
9494 case R_PPC_SECTOFF_HI
:
9495 case R_PPC_SECTOFF_HA
:
9496 if (sec
== NULL
|| sec
->output_section
== NULL
)
9498 unresolved_reloc
= TRUE
;
9501 addend
-= sec
->output_section
->vma
;
9504 /* Negative relocations. */
9505 case R_PPC_EMB_NADDR32
:
9506 case R_PPC_EMB_NADDR16
:
9507 case R_PPC_EMB_NADDR16_LO
:
9508 case R_PPC_EMB_NADDR16_HI
:
9509 case R_PPC_EMB_NADDR16_HA
:
9510 addend
-= 2 * relocation
;
9514 case R_PPC_GLOB_DAT
:
9515 case R_PPC_JMP_SLOT
:
9516 case R_PPC_RELATIVE
:
9517 case R_PPC_IRELATIVE
:
9519 case R_PPC_PLTREL32
:
9520 case R_PPC_PLT16_LO
:
9521 case R_PPC_PLT16_HI
:
9522 case R_PPC_PLT16_HA
:
9524 case R_PPC_EMB_RELSEC16
:
9525 case R_PPC_EMB_RELST_LO
:
9526 case R_PPC_EMB_RELST_HI
:
9527 case R_PPC_EMB_RELST_HA
:
9528 case R_PPC_EMB_BIT_FLD
:
9529 info
->callbacks
->einfo
9530 /* xgettext:c-format */
9531 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
9536 bfd_set_error (bfd_error_invalid_operation
);
9541 /* Do any further special processing. */
9547 case R_PPC_ADDR16_HA
:
9548 case R_PPC_REL16_HA
:
9549 case R_PPC_REL16DX_HA
:
9550 case R_PPC_SECTOFF_HA
:
9551 case R_PPC_TPREL16_HA
:
9552 case R_PPC_DTPREL16_HA
:
9553 case R_PPC_EMB_NADDR16_HA
:
9554 case R_PPC_EMB_RELST_HA
:
9555 /* It's just possible that this symbol is a weak symbol
9556 that's not actually defined anywhere. In that case,
9557 'sec' would be NULL, and we should leave the symbol
9558 alone (it will be set to zero elsewhere in the link). */
9563 case R_PPC_PLT16_HA
:
9564 case R_PPC_GOT16_HA
:
9565 case R_PPC_GOT_TLSGD16_HA
:
9566 case R_PPC_GOT_TLSLD16_HA
:
9567 case R_PPC_GOT_TPREL16_HA
:
9568 case R_PPC_GOT_DTPREL16_HA
:
9569 /* Add 0x10000 if sign bit in 0:15 is set.
9570 Bits 0:15 are not used. */
9575 case R_PPC_ADDR16_LO
:
9577 case R_PPC_GOT16_LO
:
9578 case R_PPC_SDAREL16
:
9580 case R_PPC_SECTOFF_LO
:
9581 case R_PPC_DTPREL16
:
9582 case R_PPC_DTPREL16_LO
:
9584 case R_PPC_TPREL16_LO
:
9585 case R_PPC_GOT_TLSGD16
:
9586 case R_PPC_GOT_TLSGD16_LO
:
9587 case R_PPC_GOT_TLSLD16
:
9588 case R_PPC_GOT_TLSLD16_LO
:
9589 case R_PPC_GOT_DTPREL16
:
9590 case R_PPC_GOT_DTPREL16_LO
:
9591 case R_PPC_GOT_TPREL16
:
9592 case R_PPC_GOT_TPREL16_LO
:
9594 /* The 32-bit ABI lacks proper relocations to deal with
9595 certain 64-bit instructions. Prevent damage to bits
9596 that make up part of the insn opcode. */
9597 unsigned int insn
, mask
, lobit
;
9599 insn
= bfd_get_32 (input_bfd
,
9600 contents
+ rel
->r_offset
- d_offset
);
9602 if (is_insn_ds_form (insn
))
9604 else if (is_insn_dq_form (insn
))
9608 relocation
+= addend
;
9609 addend
= insn
& mask
;
9610 lobit
= mask
& relocation
;
9613 relocation
^= lobit
;
9614 info
->callbacks
->einfo
9615 /* xgettext:c-format */
9616 (_("%H: error: %s against `%s' not a multiple of %u\n"),
9617 input_bfd
, input_section
, rel
->r_offset
,
9618 howto
->name
, sym_name
, mask
+ 1);
9619 bfd_set_error (bfd_error_bad_value
);
9627 fprintf (stderr
, "\ttype = %s (%d), name = %s, symbol index = %ld, "
9628 "offset = %ld, addend = %ld\n",
9633 (long) rel
->r_offset
,
9637 if (unresolved_reloc
9638 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
9640 && _bfd_elf_section_offset (output_bfd
, info
, input_section
,
9641 rel
->r_offset
) != (bfd_vma
) -1)
9643 info
->callbacks
->einfo
9644 /* xgettext:c-format */
9645 (_("%H: unresolvable %s relocation against symbol `%s'\n"),
9646 input_bfd
, input_section
, rel
->r_offset
,
9652 /* 16-bit fields in insns mostly have signed values, but a
9653 few insns have 16-bit unsigned values. Really, we should
9654 have different reloc types. */
9655 if (howto
->complain_on_overflow
!= complain_overflow_dont
9656 && howto
->dst_mask
== 0xffff
9657 && (input_section
->flags
& SEC_CODE
) != 0)
9659 enum complain_overflow complain
= complain_overflow_signed
;
9661 if ((elf_section_flags (input_section
) & SHF_PPC_VLE
) == 0)
9665 insn
= bfd_get_32 (input_bfd
, contents
+ (rel
->r_offset
& ~3));
9666 if ((insn
& (0x3f << 26)) == 10u << 26 /* cmpli */)
9667 complain
= complain_overflow_bitfield
;
9668 else if ((insn
& (0x3f << 26)) == 28u << 26 /* andi */
9669 || (insn
& (0x3f << 26)) == 24u << 26 /* ori */
9670 || (insn
& (0x3f << 26)) == 26u << 26 /* xori */)
9671 complain
= complain_overflow_unsigned
;
9673 if (howto
->complain_on_overflow
!= complain
)
9676 alt_howto
.complain_on_overflow
= complain
;
9681 if (r_type
== R_PPC_REL16DX_HA
)
9683 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
9684 if (rel
->r_offset
+ 4 > input_section
->size
)
9685 r
= bfd_reloc_outofrange
;
9690 relocation
+= addend
;
9691 relocation
-= (rel
->r_offset
9692 + input_section
->output_offset
9693 + input_section
->output_section
->vma
);
9695 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
9697 insn
|= (relocation
& 0xffc1) | ((relocation
& 0x3e) << 15);
9698 bfd_put_32 (input_bfd
, insn
, contents
+ rel
->r_offset
);
9703 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
, contents
,
9704 rel
->r_offset
, relocation
, addend
);
9706 if (r
!= bfd_reloc_ok
)
9708 if (r
== bfd_reloc_overflow
)
9711 /* On code like "if (foo) foo();" don't report overflow
9712 on a branch to zero when foo is undefined. */
9715 && (h
->root
.type
== bfd_link_hash_undefweak
9716 || h
->root
.type
== bfd_link_hash_undefined
)
9717 && is_branch_reloc (r_type
)))
9718 info
->callbacks
->reloc_overflow
9719 (info
, (h
? &h
->root
: NULL
), sym_name
, howto
->name
,
9720 rel
->r_addend
, input_bfd
, input_section
, rel
->r_offset
);
9724 info
->callbacks
->einfo
9725 /* xgettext:c-format */
9726 (_("%H: %s reloc against `%s': error %d\n"),
9727 input_bfd
, input_section
, rel
->r_offset
,
9728 howto
->name
, sym_name
, (int) r
);
9739 Elf_Internal_Shdr
*rel_hdr
;
9740 size_t deleted
= rel
- wrel
;
9742 rel_hdr
= _bfd_elf_single_rel_hdr (input_section
->output_section
);
9743 rel_hdr
->sh_size
-= rel_hdr
->sh_entsize
* deleted
;
9744 if (rel_hdr
->sh_size
== 0)
9746 /* It is too late to remove an empty reloc section. Leave
9748 ??? What is wrong with an empty section??? */
9749 rel_hdr
->sh_size
= rel_hdr
->sh_entsize
;
9754 rel_hdr
= _bfd_elf_single_rel_hdr (input_section
);
9755 rel_hdr
->sh_size
-= rel_hdr
->sh_entsize
* deleted
;
9756 input_section
->reloc_count
-= deleted
;
9760 fprintf (stderr
, "\n");
9763 if (input_section
->sec_info_type
== SEC_INFO_TYPE_TARGET
9764 && input_section
->size
!= input_section
->rawsize
9765 && (strcmp (input_section
->output_section
->name
, ".init") == 0
9766 || strcmp (input_section
->output_section
->name
, ".fini") == 0))
9768 /* Branch around the trampolines. */
9769 unsigned int insn
= B
+ input_section
->size
- input_section
->rawsize
;
9770 bfd_put_32 (input_bfd
, insn
, contents
+ input_section
->rawsize
);
9773 if (htab
->params
->ppc476_workaround
9774 && input_section
->sec_info_type
== SEC_INFO_TYPE_TARGET
9775 && (!bfd_link_relocatable (info
)
9776 || (input_section
->output_section
->alignment_power
9777 >= htab
->params
->pagesize_p2
)))
9779 bfd_vma start_addr
, end_addr
, addr
;
9780 bfd_vma pagesize
= (bfd_vma
) 1 << htab
->params
->pagesize_p2
;
9782 if (relax_info
->workaround_size
!= 0)
9788 bfd_put_32 (input_bfd
, BA
, fill
);
9789 p
= contents
+ input_section
->size
- relax_info
->workaround_size
;
9790 n
= relax_info
->workaround_size
>> 2;
9793 memcpy (p
, fill
, 4);
9798 /* The idea is: Replace the last instruction on a page with a
9799 branch to a patch area. Put the insn there followed by a
9800 branch back to the next page. Complicated a little by
9801 needing to handle moved conditional branches, and by not
9802 wanting to touch data-in-text. */
9804 start_addr
= (input_section
->output_section
->vma
9805 + input_section
->output_offset
);
9806 end_addr
= (start_addr
+ input_section
->size
9807 - relax_info
->workaround_size
);
9808 for (addr
= ((start_addr
& -pagesize
) + pagesize
- 4);
9812 bfd_vma offset
= addr
- start_addr
;
9813 Elf_Internal_Rela
*lo
, *hi
;
9814 bfd_boolean is_data
;
9815 bfd_vma patch_off
, patch_addr
;
9818 /* Do we have a data reloc at this offset? If so, leave
9826 rel
= lo
+ (hi
- lo
) / 2;
9827 if (rel
->r_offset
< offset
)
9829 else if (rel
->r_offset
> offset
+ 3)
9833 switch (ELF32_R_TYPE (rel
->r_info
))
9850 /* Some instructions can be left alone too. Unconditional
9851 branches, except for bcctr with BO=0x14 (bctr, bctrl),
9852 avoid the icache failure.
9854 The problem occurs due to prefetch across a page boundary
9855 where stale instructions can be fetched from the next
9856 page, and the mechanism for flushing these bad
9857 instructions fails under certain circumstances. The
9858 unconditional branches:
9859 1) Branch: b, bl, ba, bla,
9860 2) Branch Conditional: bc, bca, bcl, bcla,
9861 3) Branch Conditional to Link Register: bclr, bclrl,
9862 where (2) and (3) have BO=0x14 making them unconditional,
9863 prevent the bad prefetch because the prefetch itself is
9864 affected by these instructions. This happens even if the
9865 instruction is not executed.
9870 . addi 9,9,new_page@l
9877 The bctr is not predicted taken due to ctr not being
9878 ready, so prefetch continues on past the bctr into the
9879 new page which might have stale instructions. If they
9880 fail to be flushed, then they will be executed after the
9881 bctr executes. Either of the following modifications
9882 prevent the bad prefetch from happening in the first
9885 . lis 9,new_page@ha lis 9,new_page@ha
9886 . addi 9,9,new_page@l addi 9,9,new_page@l
9889 . nop b somewhere_else
9890 . b somewhere_else nop
9891 . new_page: new_page:
9893 insn
= bfd_get_32 (input_bfd
, contents
+ offset
);
9894 if ((insn
& (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */
9895 || ((insn
& (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/
9896 && (insn
& (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */
9897 || ((insn
& (0x3f << 26)) == (19u << 26)
9898 && (insn
& (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */
9899 && (insn
& (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */
9902 patch_addr
= (start_addr
+ input_section
->size
9903 - relax_info
->workaround_size
);
9904 patch_addr
= (patch_addr
+ 15) & -16;
9905 patch_off
= patch_addr
- start_addr
;
9906 bfd_put_32 (input_bfd
, B
+ patch_off
- offset
, contents
+ offset
);
9909 && rel
->r_offset
>= offset
9910 && rel
->r_offset
< offset
+ 4)
9914 /* If the insn we are patching had a reloc, adjust the
9915 reloc r_offset so that the reloc applies to the moved
9916 location. This matters for -r and --emit-relocs. */
9917 if (rel
+ 1 != relend
)
9919 Elf_Internal_Rela tmp
= *rel
;
9921 /* Keep the relocs sorted by r_offset. */
9922 memmove (rel
, rel
+ 1, (relend
- (rel
+ 1)) * sizeof (*rel
));
9925 relend
[-1].r_offset
+= patch_off
- offset
;
9927 /* Adjust REL16 addends too. */
9928 switch (ELF32_R_TYPE (relend
[-1].r_info
))
9931 case R_PPC_REL16_LO
:
9932 case R_PPC_REL16_HI
:
9933 case R_PPC_REL16_HA
:
9934 relend
[-1].r_addend
+= patch_off
- offset
;
9940 /* If we are building a PIE or shared library with
9941 non-PIC objects, perhaps we had a dynamic reloc too?
9942 If so, the dynamic reloc must move with the insn. */
9943 sreloc
= elf_section_data (input_section
)->sreloc
;
9946 Elf32_External_Rela
*slo
, *shi
, *srelend
;
9949 slo
= (Elf32_External_Rela
*) sreloc
->contents
;
9950 shi
= srelend
= slo
+ sreloc
->reloc_count
;
9951 soffset
= (offset
+ input_section
->output_section
->vma
9952 + input_section
->output_offset
);
9955 Elf32_External_Rela
*srel
= slo
+ (shi
- slo
) / 2;
9956 bfd_elf32_swap_reloca_in (output_bfd
, (bfd_byte
*) srel
,
9958 if (outrel
.r_offset
< soffset
)
9960 else if (outrel
.r_offset
> soffset
+ 3)
9964 if (srel
+ 1 != srelend
)
9966 memmove (srel
, srel
+ 1,
9967 (srelend
- (srel
+ 1)) * sizeof (*srel
));
9970 outrel
.r_offset
+= patch_off
- offset
;
9971 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,
9981 if ((insn
& (0x3f << 26)) == (16u << 26) /* bc */
9982 && (insn
& 2) == 0 /* relative */)
9984 bfd_vma delta
= ((insn
& 0xfffc) ^ 0x8000) - 0x8000;
9986 delta
+= offset
- patch_off
;
9987 if (bfd_link_relocatable (info
) && rel
!= NULL
)
9989 if (!bfd_link_relocatable (info
) && rel
!= NULL
)
9991 enum elf_ppc_reloc_type r_type
;
9993 r_type
= ELF32_R_TYPE (relend
[-1].r_info
);
9994 if (r_type
== R_PPC_REL14_BRTAKEN
)
9995 insn
|= BRANCH_PREDICT_BIT
;
9996 else if (r_type
== R_PPC_REL14_BRNTAKEN
)
9997 insn
&= ~BRANCH_PREDICT_BIT
;
9999 BFD_ASSERT (r_type
== R_PPC_REL14
);
10001 if ((r_type
== R_PPC_REL14_BRTAKEN
10002 || r_type
== R_PPC_REL14_BRNTAKEN
)
10003 && delta
+ 0x8000 < 0x10000
10004 && (bfd_signed_vma
) delta
< 0)
10005 insn
^= BRANCH_PREDICT_BIT
;
10007 if (delta
+ 0x8000 < 0x10000)
10009 bfd_put_32 (input_bfd
,
10010 (insn
& ~0xfffc) | (delta
& 0xfffc),
10011 contents
+ patch_off
);
10013 bfd_put_32 (input_bfd
,
10014 B
| ((offset
+ 4 - patch_off
) & 0x3fffffc),
10015 contents
+ patch_off
);
10022 unsigned int r_sym
= ELF32_R_SYM (relend
[-1].r_info
);
10024 relend
[-1].r_offset
+= 8;
10025 relend
[-1].r_info
= ELF32_R_INFO (r_sym
, R_PPC_REL24
);
10027 bfd_put_32 (input_bfd
,
10028 (insn
& ~0xfffc) | 8,
10029 contents
+ patch_off
);
10031 bfd_put_32 (input_bfd
,
10032 B
| ((offset
+ 4 - patch_off
) & 0x3fffffc),
10033 contents
+ patch_off
);
10035 bfd_put_32 (input_bfd
,
10036 B
| ((delta
- 8) & 0x3fffffc),
10037 contents
+ patch_off
);
10043 bfd_put_32 (input_bfd
, insn
, contents
+ patch_off
);
10045 bfd_put_32 (input_bfd
,
10046 B
| ((offset
+ 4 - patch_off
) & 0x3fffffc),
10047 contents
+ patch_off
);
10050 BFD_ASSERT (patch_off
<= input_section
->size
);
10051 relax_info
->workaround_size
= input_section
->size
- patch_off
;
10058 /* Finish up dynamic symbol handling. We set the contents of various
10059 dynamic sections here. */
10062 ppc_elf_finish_dynamic_symbol (bfd
*output_bfd
,
10063 struct bfd_link_info
*info
,
10064 struct elf_link_hash_entry
*h
,
10065 Elf_Internal_Sym
*sym
)
10067 struct ppc_elf_link_hash_table
*htab
;
10068 struct plt_entry
*ent
;
10069 bfd_boolean doneone
;
10072 fprintf (stderr
, "ppc_elf_finish_dynamic_symbol called for %s",
10073 h
->root
.root
.string
);
10076 htab
= ppc_elf_hash_table (info
);
10077 BFD_ASSERT (htab
->elf
.dynobj
!= NULL
);
10080 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
10081 if (ent
->plt
.offset
!= (bfd_vma
) -1)
10085 Elf_Internal_Rela rela
;
10087 bfd_vma reloc_index
;
10089 if (htab
->plt_type
== PLT_NEW
10090 || !htab
->elf
.dynamic_sections_created
10091 || h
->dynindx
== -1)
10092 reloc_index
= ent
->plt
.offset
/ 4;
10095 reloc_index
= ((ent
->plt
.offset
- htab
->plt_initial_entry_size
)
10096 / htab
->plt_slot_size
);
10097 if (reloc_index
> PLT_NUM_SINGLE_ENTRIES
10098 && htab
->plt_type
== PLT_OLD
)
10099 reloc_index
-= (reloc_index
- PLT_NUM_SINGLE_ENTRIES
) / 2;
10102 /* This symbol has an entry in the procedure linkage table.
10104 if (htab
->plt_type
== PLT_VXWORKS
10105 && htab
->elf
.dynamic_sections_created
10106 && h
->dynindx
!= -1)
10108 bfd_vma got_offset
;
10109 const bfd_vma
*plt_entry
;
10111 /* The first three entries in .got.plt are reserved. */
10112 got_offset
= (reloc_index
+ 3) * 4;
10114 /* Use the right PLT. */
10115 plt_entry
= bfd_link_pic (info
) ? ppc_elf_vxworks_pic_plt_entry
10116 : ppc_elf_vxworks_plt_entry
;
10118 /* Fill in the .plt on VxWorks. */
10119 if (bfd_link_pic (info
))
10121 bfd_put_32 (output_bfd
,
10122 plt_entry
[0] | PPC_HA (got_offset
),
10123 htab
->elf
.splt
->contents
+ ent
->plt
.offset
+ 0);
10124 bfd_put_32 (output_bfd
,
10125 plt_entry
[1] | PPC_LO (got_offset
),
10126 htab
->elf
.splt
->contents
+ ent
->plt
.offset
+ 4);
10130 bfd_vma got_loc
= got_offset
+ SYM_VAL (htab
->elf
.hgot
);
10132 bfd_put_32 (output_bfd
,
10133 plt_entry
[0] | PPC_HA (got_loc
),
10134 htab
->elf
.splt
->contents
+ ent
->plt
.offset
+ 0);
10135 bfd_put_32 (output_bfd
,
10136 plt_entry
[1] | PPC_LO (got_loc
),
10137 htab
->elf
.splt
->contents
+ ent
->plt
.offset
+ 4);
10140 bfd_put_32 (output_bfd
, plt_entry
[2],
10141 htab
->elf
.splt
->contents
+ ent
->plt
.offset
+ 8);
10142 bfd_put_32 (output_bfd
, plt_entry
[3],
10143 htab
->elf
.splt
->contents
+ ent
->plt
.offset
+ 12);
10145 /* This instruction is an immediate load. The value loaded is
10146 the byte offset of the R_PPC_JMP_SLOT relocation from the
10147 start of the .rela.plt section. The value is stored in the
10148 low-order 16 bits of the load instruction. */
10149 /* NOTE: It appears that this is now an index rather than a
10150 prescaled offset. */
10151 bfd_put_32 (output_bfd
,
10152 plt_entry
[4] | reloc_index
,
10153 htab
->elf
.splt
->contents
+ ent
->plt
.offset
+ 16);
10154 /* This instruction is a PC-relative branch whose target is
10155 the start of the PLT section. The address of this branch
10156 instruction is 20 bytes beyond the start of this PLT entry.
10157 The address is encoded in bits 6-29, inclusive. The value
10158 stored is right-shifted by two bits, permitting a 26-bit
10160 bfd_put_32 (output_bfd
,
10162 | (-(ent
->plt
.offset
+ 20) & 0x03fffffc)),
10163 htab
->elf
.splt
->contents
+ ent
->plt
.offset
+ 20);
10164 bfd_put_32 (output_bfd
, plt_entry
[6],
10165 htab
->elf
.splt
->contents
+ ent
->plt
.offset
+ 24);
10166 bfd_put_32 (output_bfd
, plt_entry
[7],
10167 htab
->elf
.splt
->contents
+ ent
->plt
.offset
+ 28);
10169 /* Fill in the GOT entry corresponding to this PLT slot with
10170 the address immediately after the "bctr" instruction
10171 in this PLT entry. */
10172 bfd_put_32 (output_bfd
, (htab
->elf
.splt
->output_section
->vma
10173 + htab
->elf
.splt
->output_offset
10174 + ent
->plt
.offset
+ 16),
10175 htab
->elf
.sgotplt
->contents
+ got_offset
);
10177 if (!bfd_link_pic (info
))
10179 /* Fill in a couple of entries in .rela.plt.unloaded. */
10180 loc
= htab
->srelplt2
->contents
10181 + ((VXWORKS_PLTRESOLVE_RELOCS
+ reloc_index
10182 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS
)
10183 * sizeof (Elf32_External_Rela
));
10185 /* Provide the @ha relocation for the first instruction. */
10186 rela
.r_offset
= (htab
->elf
.splt
->output_section
->vma
10187 + htab
->elf
.splt
->output_offset
10188 + ent
->plt
.offset
+ 2);
10189 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
,
10191 rela
.r_addend
= got_offset
;
10192 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
10193 loc
+= sizeof (Elf32_External_Rela
);
10195 /* Provide the @l relocation for the second instruction. */
10196 rela
.r_offset
= (htab
->elf
.splt
->output_section
->vma
10197 + htab
->elf
.splt
->output_offset
10198 + ent
->plt
.offset
+ 6);
10199 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
,
10201 rela
.r_addend
= got_offset
;
10202 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
10203 loc
+= sizeof (Elf32_External_Rela
);
10205 /* Provide a relocation for the GOT entry corresponding to this
10206 PLT slot. Point it at the middle of the .plt entry. */
10207 rela
.r_offset
= (htab
->elf
.sgotplt
->output_section
->vma
10208 + htab
->elf
.sgotplt
->output_offset
10210 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hplt
->indx
,
10212 rela
.r_addend
= ent
->plt
.offset
+ 16;
10213 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
10216 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
10217 In particular, the offset for the relocation is not the
10218 address of the PLT entry for this function, as specified
10219 by the ABI. Instead, the offset is set to the address of
10220 the GOT slot for this function. See EABI 4.4.4.1. */
10221 rela
.r_offset
= (htab
->elf
.sgotplt
->output_section
->vma
10222 + htab
->elf
.sgotplt
->output_offset
10228 asection
*splt
= htab
->elf
.splt
;
10229 if (!htab
->elf
.dynamic_sections_created
10230 || h
->dynindx
== -1)
10231 splt
= htab
->elf
.iplt
;
10233 rela
.r_offset
= (splt
->output_section
->vma
10234 + splt
->output_offset
10235 + ent
->plt
.offset
);
10236 if (htab
->plt_type
== PLT_OLD
10237 || !htab
->elf
.dynamic_sections_created
10238 || h
->dynindx
== -1)
10240 /* We don't need to fill in the .plt. The ppc dynamic
10241 linker will fill it in. */
10245 bfd_vma val
= (htab
->glink_pltresolve
+ ent
->plt
.offset
10246 + htab
->glink
->output_section
->vma
10247 + htab
->glink
->output_offset
);
10248 bfd_put_32 (output_bfd
, val
,
10249 splt
->contents
+ ent
->plt
.offset
);
10253 /* Fill in the entry in the .rela.plt section. */
10255 if (!htab
->elf
.dynamic_sections_created
10256 || h
->dynindx
== -1)
10258 BFD_ASSERT (h
->type
== STT_GNU_IFUNC
10260 && (h
->root
.type
== bfd_link_hash_defined
10261 || h
->root
.type
== bfd_link_hash_defweak
));
10262 rela
.r_info
= ELF32_R_INFO (0, R_PPC_IRELATIVE
);
10263 rela
.r_addend
= SYM_VAL (h
);
10266 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_PPC_JMP_SLOT
);
10268 if (!htab
->elf
.dynamic_sections_created
10269 || h
->dynindx
== -1)
10270 loc
= (htab
->elf
.irelplt
->contents
10271 + (htab
->elf
.irelplt
->reloc_count
++
10272 * sizeof (Elf32_External_Rela
)));
10274 loc
= (htab
->elf
.srelplt
->contents
10275 + reloc_index
* sizeof (Elf32_External_Rela
));
10276 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
10278 if (!h
->def_regular
)
10280 /* Mark the symbol as undefined, rather than as
10281 defined in the .plt section. Leave the value if
10282 there were any relocations where pointer equality
10283 matters (this is a clue for the dynamic linker, to
10284 make function pointer comparisons work between an
10285 application and shared library), otherwise set it
10287 sym
->st_shndx
= SHN_UNDEF
;
10288 if (!h
->pointer_equality_needed
)
10290 else if (!h
->ref_regular_nonweak
)
10292 /* This breaks function pointer comparisons, but
10293 that is better than breaking tests for a NULL
10294 function pointer. */
10298 else if (h
->type
== STT_GNU_IFUNC
10299 && !bfd_link_pic (info
))
10301 /* Set the value of ifunc symbols in a non-pie
10302 executable to the glink entry. This is to avoid
10303 text relocations. We can't do this for ifunc in
10304 allocate_dynrelocs, as we do for normal dynamic
10305 function symbols with plt entries, because we need
10306 to keep the original value around for the ifunc
10308 sym
->st_shndx
= (_bfd_elf_section_from_bfd_section
10309 (output_bfd
, htab
->glink
->output_section
));
10310 sym
->st_value
= (ent
->glink_offset
10311 + htab
->glink
->output_offset
10312 + htab
->glink
->output_section
->vma
);
10317 if (htab
->plt_type
== PLT_NEW
10318 || !htab
->elf
.dynamic_sections_created
10319 || h
->dynindx
== -1)
10322 asection
*splt
= htab
->elf
.splt
;
10323 if (!htab
->elf
.dynamic_sections_created
10324 || h
->dynindx
== -1)
10325 splt
= htab
->elf
.iplt
;
10327 p
= (unsigned char *) htab
->glink
->contents
+ ent
->glink_offset
;
10329 if (h
== htab
->tls_get_addr
&& !htab
->params
->no_tls_get_addr_opt
)
10331 bfd_put_32 (output_bfd
, LWZ_11_3
, p
);
10333 bfd_put_32 (output_bfd
, LWZ_12_3
+ 4, p
);
10335 bfd_put_32 (output_bfd
, MR_0_3
, p
);
10337 bfd_put_32 (output_bfd
, CMPWI_11_0
, p
);
10339 bfd_put_32 (output_bfd
, ADD_3_12_2
, p
);
10341 bfd_put_32 (output_bfd
, BEQLR
, p
);
10343 bfd_put_32 (output_bfd
, MR_3_0
, p
);
10345 bfd_put_32 (output_bfd
, NOP
, p
);
10349 write_glink_stub (ent
, splt
, p
, info
);
10351 if (!bfd_link_pic (info
))
10352 /* We only need one non-PIC glink stub. */
10362 Elf_Internal_Rela rela
;
10365 /* This symbols needs a copy reloc. Set it up. */
10368 fprintf (stderr
, ", copy");
10371 BFD_ASSERT (h
->dynindx
!= -1);
10373 if (ppc_elf_hash_entry (h
)->has_sda_refs
)
10375 else if (h
->root
.u
.def
.section
== htab
->elf
.sdynrelro
)
10376 s
= htab
->elf
.sreldynrelro
;
10378 s
= htab
->elf
.srelbss
;
10379 BFD_ASSERT (s
!= NULL
);
10381 rela
.r_offset
= SYM_VAL (h
);
10382 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_PPC_COPY
);
10384 loc
= s
->contents
+ s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
10385 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
10389 fprintf (stderr
, "\n");
10395 static enum elf_reloc_type_class
10396 ppc_elf_reloc_type_class (const struct bfd_link_info
*info
,
10397 const asection
*rel_sec
,
10398 const Elf_Internal_Rela
*rela
)
10400 struct ppc_elf_link_hash_table
*htab
= ppc_elf_hash_table (info
);
10402 if (rel_sec
== htab
->elf
.irelplt
)
10403 return reloc_class_ifunc
;
10405 switch (ELF32_R_TYPE (rela
->r_info
))
10407 case R_PPC_RELATIVE
:
10408 return reloc_class_relative
;
10409 case R_PPC_JMP_SLOT
:
10410 return reloc_class_plt
;
10412 return reloc_class_copy
;
10414 return reloc_class_normal
;
10418 /* Finish up the dynamic sections. */
10421 ppc_elf_finish_dynamic_sections (bfd
*output_bfd
,
10422 struct bfd_link_info
*info
)
10425 struct ppc_elf_link_hash_table
*htab
;
10428 bfd_boolean ret
= TRUE
;
10431 fprintf (stderr
, "ppc_elf_finish_dynamic_sections called\n");
10434 htab
= ppc_elf_hash_table (info
);
10435 dynobj
= htab
->elf
.dynobj
;
10436 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
10439 if (htab
->elf
.hgot
!= NULL
)
10440 got
= SYM_VAL (htab
->elf
.hgot
);
10442 if (htab
->elf
.dynamic_sections_created
)
10444 Elf32_External_Dyn
*dyncon
, *dynconend
;
10446 BFD_ASSERT (htab
->elf
.splt
!= NULL
&& sdyn
!= NULL
);
10448 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
10449 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
10450 for (; dyncon
< dynconend
; dyncon
++)
10452 Elf_Internal_Dyn dyn
;
10455 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
10460 if (htab
->is_vxworks
)
10461 s
= htab
->elf
.sgotplt
;
10463 s
= htab
->elf
.splt
;
10464 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
10468 dyn
.d_un
.d_val
= htab
->elf
.srelplt
->size
;
10472 s
= htab
->elf
.srelplt
;
10473 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
10477 dyn
.d_un
.d_ptr
= got
;
10481 if (htab
->is_vxworks
10482 && elf_vxworks_finish_dynamic_entry (output_bfd
, &dyn
))
10487 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
10491 if (htab
->elf
.sgot
!= NULL
10492 && htab
->elf
.sgot
->output_section
!= bfd_abs_section_ptr
)
10494 if (htab
->elf
.hgot
->root
.u
.def
.section
== htab
->elf
.sgot
10495 || htab
->elf
.hgot
->root
.u
.def
.section
== htab
->elf
.sgotplt
)
10497 unsigned char *p
= htab
->elf
.hgot
->root
.u
.def
.section
->contents
;
10499 p
+= htab
->elf
.hgot
->root
.u
.def
.value
;
10500 if (htab
->plt_type
== PLT_OLD
)
10502 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
10503 so that a function can easily find the address of
10504 _GLOBAL_OFFSET_TABLE_. */
10505 BFD_ASSERT (htab
->elf
.hgot
->root
.u
.def
.value
- 4
10506 < htab
->elf
.hgot
->root
.u
.def
.section
->size
);
10507 bfd_put_32 (output_bfd
, 0x4e800021, p
- 4);
10512 bfd_vma val
= sdyn
->output_section
->vma
+ sdyn
->output_offset
;
10513 BFD_ASSERT (htab
->elf
.hgot
->root
.u
.def
.value
10514 < htab
->elf
.hgot
->root
.u
.def
.section
->size
);
10515 bfd_put_32 (output_bfd
, val
, p
);
10520 /* xgettext:c-format */
10521 info
->callbacks
->einfo (_("%P: %s not defined in linker created %s\n"),
10522 htab
->elf
.hgot
->root
.root
.string
,
10523 (htab
->elf
.sgotplt
!= NULL
10524 ? htab
->elf
.sgotplt
->name
10525 : htab
->elf
.sgot
->name
));
10526 bfd_set_error (bfd_error_bad_value
);
10530 elf_section_data (htab
->elf
.sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
10533 /* Fill in the first entry in the VxWorks procedure linkage table. */
10534 if (htab
->is_vxworks
10535 && htab
->elf
.splt
!= NULL
10536 && htab
->elf
.splt
->size
!= 0
10537 && htab
->elf
.splt
->output_section
!= bfd_abs_section_ptr
)
10539 asection
*splt
= htab
->elf
.splt
;
10540 /* Use the right PLT. */
10541 const bfd_vma
*plt_entry
= (bfd_link_pic (info
)
10542 ? ppc_elf_vxworks_pic_plt0_entry
10543 : ppc_elf_vxworks_plt0_entry
);
10545 if (!bfd_link_pic (info
))
10547 bfd_vma got_value
= SYM_VAL (htab
->elf
.hgot
);
10549 bfd_put_32 (output_bfd
, plt_entry
[0] | PPC_HA (got_value
),
10550 splt
->contents
+ 0);
10551 bfd_put_32 (output_bfd
, plt_entry
[1] | PPC_LO (got_value
),
10552 splt
->contents
+ 4);
10556 bfd_put_32 (output_bfd
, plt_entry
[0], splt
->contents
+ 0);
10557 bfd_put_32 (output_bfd
, plt_entry
[1], splt
->contents
+ 4);
10559 bfd_put_32 (output_bfd
, plt_entry
[2], splt
->contents
+ 8);
10560 bfd_put_32 (output_bfd
, plt_entry
[3], splt
->contents
+ 12);
10561 bfd_put_32 (output_bfd
, plt_entry
[4], splt
->contents
+ 16);
10562 bfd_put_32 (output_bfd
, plt_entry
[5], splt
->contents
+ 20);
10563 bfd_put_32 (output_bfd
, plt_entry
[6], splt
->contents
+ 24);
10564 bfd_put_32 (output_bfd
, plt_entry
[7], splt
->contents
+ 28);
10566 if (! bfd_link_pic (info
))
10568 Elf_Internal_Rela rela
;
10571 loc
= htab
->srelplt2
->contents
;
10573 /* Output the @ha relocation for the first instruction. */
10574 rela
.r_offset
= (htab
->elf
.splt
->output_section
->vma
10575 + htab
->elf
.splt
->output_offset
10577 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_PPC_ADDR16_HA
);
10579 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
10580 loc
+= sizeof (Elf32_External_Rela
);
10582 /* Output the @l relocation for the second instruction. */
10583 rela
.r_offset
= (htab
->elf
.splt
->output_section
->vma
10584 + htab
->elf
.splt
->output_offset
10586 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_PPC_ADDR16_LO
);
10588 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
10589 loc
+= sizeof (Elf32_External_Rela
);
10591 /* Fix up the remaining relocations. They may have the wrong
10592 symbol index for _G_O_T_ or _P_L_T_ depending on the order
10593 in which symbols were output. */
10594 while (loc
< htab
->srelplt2
->contents
+ htab
->srelplt2
->size
)
10596 Elf_Internal_Rela rel
;
10598 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
10599 rel
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_PPC_ADDR16_HA
);
10600 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
10601 loc
+= sizeof (Elf32_External_Rela
);
10603 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
10604 rel
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_PPC_ADDR16_LO
);
10605 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
10606 loc
+= sizeof (Elf32_External_Rela
);
10608 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
10609 rel
.r_info
= ELF32_R_INFO (htab
->elf
.hplt
->indx
, R_PPC_ADDR32
);
10610 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
10611 loc
+= sizeof (Elf32_External_Rela
);
10616 if (htab
->glink
!= NULL
10617 && htab
->glink
->contents
!= NULL
10618 && htab
->elf
.dynamic_sections_created
)
10621 unsigned char *endp
;
10626 * PIC glink code is the following:
10628 * # ith PLT code stub.
10629 * addis 11,30,(plt+(i-1)*4-got)@ha
10630 * lwz 11,(plt+(i-1)*4-got)@l(11)
10634 * # A table of branches, one for each plt entry.
10635 * # The idea is that the plt call stub loads ctr and r11 with these
10636 * # addresses, so (r11 - res_0) gives the plt index * 4.
10637 * res_0: b PLTresolve
10638 * res_1: b PLTresolve
10640 * # Some number of entries towards the end can be nops
10646 * addis 11,11,(1f-res_0)@ha
10649 * 1: addi 11,11,(1b-res_0)@l
10652 * sub 11,11,12 # r11 = index * 4
10653 * addis 12,12,(got+4-1b)@ha
10654 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
10655 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
10658 * add 11,0,11 # r11 = index * 12 = reloc offset.
10661 static const unsigned int pic_plt_resolve
[] =
10682 * Non-PIC glink code is a little simpler.
10684 * # ith PLT code stub.
10685 * lis 11,(plt+(i-1)*4)@ha
10686 * lwz 11,(plt+(i-1)*4)@l(11)
10690 * The branch table is the same, then comes
10693 * lis 12,(got+4)@ha
10694 * addis 11,11,(-res_0)@ha
10695 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
10696 * addi 11,11,(-res_0)@l # r11 = index * 4
10699 * lwz 12,(got+8)@l(12) # got[2] contains the map address
10700 * add 11,0,11 # r11 = index * 12 = reloc offset.
10703 static const unsigned int plt_resolve
[] =
10723 if (ARRAY_SIZE (pic_plt_resolve
) != GLINK_PLTRESOLVE
/ 4)
10725 if (ARRAY_SIZE (plt_resolve
) != GLINK_PLTRESOLVE
/ 4)
10728 /* Build the branch table, one for each plt entry (less one),
10729 and perhaps some padding. */
10730 p
= htab
->glink
->contents
;
10731 p
+= htab
->glink_pltresolve
;
10732 endp
= htab
->glink
->contents
;
10733 endp
+= htab
->glink
->size
- GLINK_PLTRESOLVE
;
10734 while (p
< endp
- (htab
->params
->ppc476_workaround
? 0 : 8 * 4))
10736 bfd_put_32 (output_bfd
, B
+ endp
- p
, p
);
10741 bfd_put_32 (output_bfd
, NOP
, p
);
10745 res0
= (htab
->glink_pltresolve
10746 + htab
->glink
->output_section
->vma
10747 + htab
->glink
->output_offset
);
10749 if (htab
->params
->ppc476_workaround
)
10751 /* Ensure that a call stub at the end of a page doesn't
10752 result in prefetch over the end of the page into the
10753 glink branch table. */
10754 bfd_vma pagesize
= (bfd_vma
) 1 << htab
->params
->pagesize_p2
;
10756 bfd_vma glink_start
= (htab
->glink
->output_section
->vma
10757 + htab
->glink
->output_offset
);
10759 for (page_addr
= res0
& -pagesize
;
10760 page_addr
> glink_start
;
10761 page_addr
-= pagesize
)
10763 /* We have a plt call stub that may need fixing. */
10767 loc
= htab
->glink
->contents
+ page_addr
- 4 - glink_start
;
10768 insn
= bfd_get_32 (output_bfd
, loc
);
10771 /* By alignment, we know that there must be at least
10772 one other call stub before this one. */
10773 insn
= bfd_get_32 (output_bfd
, loc
- 16);
10775 bfd_put_32 (output_bfd
, B
| (-16 & 0x3fffffc), loc
);
10777 bfd_put_32 (output_bfd
, B
| (-20 & 0x3fffffc), loc
);
10782 /* Last comes the PLTresolve stub. */
10783 if (bfd_link_pic (info
))
10787 for (i
= 0; i
< ARRAY_SIZE (pic_plt_resolve
); i
++)
10789 unsigned int insn
= pic_plt_resolve
[i
];
10791 if (htab
->params
->ppc476_workaround
&& insn
== NOP
)
10793 bfd_put_32 (output_bfd
, insn
, p
);
10796 p
-= 4 * ARRAY_SIZE (pic_plt_resolve
);
10798 bcl
= (htab
->glink
->size
- GLINK_PLTRESOLVE
+ 3*4
10799 + htab
->glink
->output_section
->vma
10800 + htab
->glink
->output_offset
);
10802 bfd_put_32 (output_bfd
,
10803 ADDIS_11_11
+ PPC_HA (bcl
- res0
), p
+ 0*4);
10804 bfd_put_32 (output_bfd
,
10805 ADDI_11_11
+ PPC_LO (bcl
- res0
), p
+ 3*4);
10806 bfd_put_32 (output_bfd
,
10807 ADDIS_12_12
+ PPC_HA (got
+ 4 - bcl
), p
+ 7*4);
10808 if (PPC_HA (got
+ 4 - bcl
) == PPC_HA (got
+ 8 - bcl
))
10810 bfd_put_32 (output_bfd
,
10811 LWZ_0_12
+ PPC_LO (got
+ 4 - bcl
), p
+ 8*4);
10812 bfd_put_32 (output_bfd
,
10813 LWZ_12_12
+ PPC_LO (got
+ 8 - bcl
), p
+ 9*4);
10817 bfd_put_32 (output_bfd
,
10818 LWZU_0_12
+ PPC_LO (got
+ 4 - bcl
), p
+ 8*4);
10819 bfd_put_32 (output_bfd
,
10820 LWZ_12_12
+ 4, p
+ 9*4);
10825 for (i
= 0; i
< ARRAY_SIZE (plt_resolve
); i
++)
10827 unsigned int insn
= plt_resolve
[i
];
10829 if (htab
->params
->ppc476_workaround
&& insn
== NOP
)
10831 bfd_put_32 (output_bfd
, insn
, p
);
10834 p
-= 4 * ARRAY_SIZE (plt_resolve
);
10836 bfd_put_32 (output_bfd
,
10837 LIS_12
+ PPC_HA (got
+ 4), p
+ 0*4);
10838 bfd_put_32 (output_bfd
,
10839 ADDIS_11_11
+ PPC_HA (-res0
), p
+ 1*4);
10840 bfd_put_32 (output_bfd
,
10841 ADDI_11_11
+ PPC_LO (-res0
), p
+ 3*4);
10842 if (PPC_HA (got
+ 4) == PPC_HA (got
+ 8))
10844 bfd_put_32 (output_bfd
,
10845 LWZ_0_12
+ PPC_LO (got
+ 4), p
+ 2*4);
10846 bfd_put_32 (output_bfd
,
10847 LWZ_12_12
+ PPC_LO (got
+ 8), p
+ 6*4);
10851 bfd_put_32 (output_bfd
,
10852 LWZU_0_12
+ PPC_LO (got
+ 4), p
+ 2*4);
10853 bfd_put_32 (output_bfd
,
10854 LWZ_12_12
+ 4, p
+ 6*4);
10859 if (htab
->glink_eh_frame
!= NULL
10860 && htab
->glink_eh_frame
->contents
!= NULL
)
10862 unsigned char *p
= htab
->glink_eh_frame
->contents
;
10865 p
+= sizeof (glink_eh_frame_cie
);
10870 /* Offset to .glink. */
10871 val
= (htab
->glink
->output_section
->vma
10872 + htab
->glink
->output_offset
);
10873 val
-= (htab
->glink_eh_frame
->output_section
->vma
10874 + htab
->glink_eh_frame
->output_offset
);
10875 val
-= p
- htab
->glink_eh_frame
->contents
;
10876 bfd_put_32 (htab
->elf
.dynobj
, val
, p
);
10878 if (htab
->glink_eh_frame
->sec_info_type
== SEC_INFO_TYPE_EH_FRAME
10879 && !_bfd_elf_write_section_eh_frame (output_bfd
, info
,
10880 htab
->glink_eh_frame
,
10881 htab
->glink_eh_frame
->contents
))
10888 #define TARGET_LITTLE_SYM powerpc_elf32_le_vec
10889 #define TARGET_LITTLE_NAME "elf32-powerpcle"
10890 #define TARGET_BIG_SYM powerpc_elf32_vec
10891 #define TARGET_BIG_NAME "elf32-powerpc"
10892 #define ELF_ARCH bfd_arch_powerpc
10893 #define ELF_TARGET_ID PPC32_ELF_DATA
10894 #define ELF_MACHINE_CODE EM_PPC
10895 #ifdef __QNXTARGET__
10896 #define ELF_MAXPAGESIZE 0x1000
10897 #define ELF_COMMONPAGESIZE 0x1000
10899 #define ELF_MAXPAGESIZE 0x10000
10900 #define ELF_COMMONPAGESIZE 0x10000
10902 #define ELF_MINPAGESIZE 0x1000
10903 #define elf_info_to_howto ppc_elf_info_to_howto
10905 #ifdef EM_CYGNUS_POWERPC
10906 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
10910 #define ELF_MACHINE_ALT2 EM_PPC_OLD
10913 #define elf_backend_plt_not_loaded 1
10914 #define elf_backend_want_dynrelro 1
10915 #define elf_backend_can_gc_sections 1
10916 #define elf_backend_can_refcount 1
10917 #define elf_backend_rela_normal 1
10918 #define elf_backend_caches_rawsize 1
10920 #define bfd_elf32_mkobject ppc_elf_mkobject
10921 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
10922 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
10923 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
10924 #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
10925 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
10926 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
10927 #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
10929 #define elf_backend_object_p ppc_elf_object_p
10930 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
10931 #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
10932 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
10933 #define elf_backend_relocate_section ppc_elf_relocate_section
10934 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
10935 #define elf_backend_check_relocs ppc_elf_check_relocs
10936 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
10937 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
10938 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
10939 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
10940 #define elf_backend_hash_symbol ppc_elf_hash_symbol
10941 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
10942 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
10943 #define elf_backend_fake_sections ppc_elf_fake_sections
10944 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
10945 #define elf_backend_modify_segment_map ppc_elf_modify_segment_map
10946 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
10947 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
10948 #define elf_backend_write_core_note ppc_elf_write_core_note
10949 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
10950 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
10951 #define elf_backend_final_write_processing ppc_elf_final_write_processing
10952 #define elf_backend_write_section ppc_elf_write_section
10953 #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
10954 #define elf_backend_plt_sym_val ppc_elf_plt_sym_val
10955 #define elf_backend_action_discarded ppc_elf_action_discarded
10956 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
10957 #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
10959 #include "elf32-target.h"
10961 /* FreeBSD Target */
10963 #undef TARGET_LITTLE_SYM
10964 #undef TARGET_LITTLE_NAME
10966 #undef TARGET_BIG_SYM
10967 #define TARGET_BIG_SYM powerpc_elf32_fbsd_vec
10968 #undef TARGET_BIG_NAME
10969 #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
10972 #define ELF_OSABI ELFOSABI_FREEBSD
10975 #define elf32_bed elf32_powerpc_fbsd_bed
10977 #include "elf32-target.h"
10979 /* VxWorks Target */
10981 #undef TARGET_LITTLE_SYM
10982 #undef TARGET_LITTLE_NAME
10984 #undef TARGET_BIG_SYM
10985 #define TARGET_BIG_SYM powerpc_elf32_vxworks_vec
10986 #undef TARGET_BIG_NAME
10987 #define TARGET_BIG_NAME "elf32-powerpc-vxworks"
10991 /* VxWorks uses the elf default section flags for .plt. */
10992 static const struct bfd_elf_special_section
*
10993 ppc_elf_vxworks_get_sec_type_attr (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
10995 if (sec
->name
== NULL
)
10998 if (strcmp (sec
->name
, ".plt") == 0)
10999 return _bfd_elf_get_sec_type_attr (abfd
, sec
);
11001 return ppc_elf_get_sec_type_attr (abfd
, sec
);
11004 /* Like ppc_elf_link_hash_table_create, but overrides
11005 appropriately for VxWorks. */
11006 static struct bfd_link_hash_table
*
11007 ppc_elf_vxworks_link_hash_table_create (bfd
*abfd
)
11009 struct bfd_link_hash_table
*ret
;
11011 ret
= ppc_elf_link_hash_table_create (abfd
);
11014 struct ppc_elf_link_hash_table
*htab
11015 = (struct ppc_elf_link_hash_table
*)ret
;
11016 htab
->is_vxworks
= 1;
11017 htab
->plt_type
= PLT_VXWORKS
;
11018 htab
->plt_entry_size
= VXWORKS_PLT_ENTRY_SIZE
;
11019 htab
->plt_slot_size
= VXWORKS_PLT_ENTRY_SIZE
;
11020 htab
->plt_initial_entry_size
= VXWORKS_PLT_INITIAL_ENTRY_SIZE
;
11025 /* Tweak magic VxWorks symbols as they are loaded. */
11027 ppc_elf_vxworks_add_symbol_hook (bfd
*abfd
,
11028 struct bfd_link_info
*info
,
11029 Elf_Internal_Sym
*sym
,
11030 const char **namep ATTRIBUTE_UNUSED
,
11031 flagword
*flagsp ATTRIBUTE_UNUSED
,
11035 if (!elf_vxworks_add_symbol_hook(abfd
, info
, sym
,namep
, flagsp
, secp
,
11039 return ppc_elf_add_symbol_hook(abfd
, info
, sym
,namep
, flagsp
, secp
, valp
);
11043 ppc_elf_vxworks_final_write_processing (bfd
*abfd
, bfd_boolean linker
)
11045 ppc_elf_final_write_processing(abfd
, linker
);
11046 elf_vxworks_final_write_processing(abfd
, linker
);
11049 /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
11051 #undef elf_backend_want_plt_sym
11052 #define elf_backend_want_plt_sym 1
11053 #undef elf_backend_want_got_plt
11054 #define elf_backend_want_got_plt 1
11055 #undef elf_backend_got_symbol_offset
11056 #define elf_backend_got_symbol_offset 0
11057 #undef elf_backend_plt_not_loaded
11058 #define elf_backend_plt_not_loaded 0
11059 #undef elf_backend_plt_readonly
11060 #define elf_backend_plt_readonly 1
11061 #undef elf_backend_got_header_size
11062 #define elf_backend_got_header_size 12
11063 #undef elf_backend_dtrel_excludes_plt
11064 #define elf_backend_dtrel_excludes_plt 1
11066 #undef bfd_elf32_get_synthetic_symtab
11068 #undef bfd_elf32_bfd_link_hash_table_create
11069 #define bfd_elf32_bfd_link_hash_table_create \
11070 ppc_elf_vxworks_link_hash_table_create
11071 #undef elf_backend_add_symbol_hook
11072 #define elf_backend_add_symbol_hook \
11073 ppc_elf_vxworks_add_symbol_hook
11074 #undef elf_backend_link_output_symbol_hook
11075 #define elf_backend_link_output_symbol_hook \
11076 elf_vxworks_link_output_symbol_hook
11077 #undef elf_backend_final_write_processing
11078 #define elf_backend_final_write_processing \
11079 ppc_elf_vxworks_final_write_processing
11080 #undef elf_backend_get_sec_type_attr
11081 #define elf_backend_get_sec_type_attr \
11082 ppc_elf_vxworks_get_sec_type_attr
11083 #undef elf_backend_emit_relocs
11084 #define elf_backend_emit_relocs \
11085 elf_vxworks_emit_relocs
11088 #define elf32_bed ppc_elf_vxworks_bed
11089 #undef elf_backend_post_process_headers
11091 #include "elf32-target.h"