1 /* PowerPC-specific support for 32-bit ELF
2 Copyright (C) 1994-2016 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"
39 typedef enum split16_format_type
46 /* RELA relocations are used here. */
48 static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
49 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
50 static bfd_reloc_status_type ppc_elf_unhandled_reloc
51 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
53 /* Branch prediction bit for branch taken relocs. */
54 #define BRANCH_PREDICT_BIT 0x200000
55 /* Mask to set RA in memory instructions. */
56 #define RA_REGISTER_MASK 0x001f0000
57 /* Value to shift register by to insert RA. */
58 #define RA_REGISTER_SHIFT 16
60 /* The name of the dynamic interpreter. This is put in the .interp
62 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
64 /* For old-style PLT. */
65 /* The number of single-slot PLT entries (the rest use two slots). */
66 #define PLT_NUM_SINGLE_ENTRIES 8192
68 /* For new-style .glink and .plt. */
69 #define GLINK_PLTRESOLVE 16*4
70 #define GLINK_ENTRY_SIZE 4*4
71 #define TLS_GET_ADDR_GLINK_SIZE 12*4
73 /* VxWorks uses its own plt layout, filled in by the static linker. */
75 /* The standard VxWorks PLT entry. */
76 #define VXWORKS_PLT_ENTRY_SIZE 32
77 static const bfd_vma ppc_elf_vxworks_plt_entry
78 [VXWORKS_PLT_ENTRY_SIZE
/ 4] =
80 0x3d800000, /* lis r12,0 */
81 0x818c0000, /* lwz r12,0(r12) */
82 0x7d8903a6, /* mtctr r12 */
83 0x4e800420, /* bctr */
84 0x39600000, /* li r11,0 */
85 0x48000000, /* b 14 <.PLT0resolve+0x4> */
89 static const bfd_vma ppc_elf_vxworks_pic_plt_entry
90 [VXWORKS_PLT_ENTRY_SIZE
/ 4] =
92 0x3d9e0000, /* addis r12,r30,0 */
93 0x818c0000, /* lwz r12,0(r12) */
94 0x7d8903a6, /* mtctr r12 */
95 0x4e800420, /* bctr */
96 0x39600000, /* li r11,0 */
97 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
102 /* The initial VxWorks PLT entry. */
103 #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
104 static const bfd_vma ppc_elf_vxworks_plt0_entry
105 [VXWORKS_PLT_INITIAL_ENTRY_SIZE
/ 4] =
107 0x3d800000, /* lis r12,0 */
108 0x398c0000, /* addi r12,r12,0 */
109 0x800c0008, /* lwz r0,8(r12) */
110 0x7c0903a6, /* mtctr r0 */
111 0x818c0004, /* lwz r12,4(r12) */
112 0x4e800420, /* bctr */
113 0x60000000, /* nop */
114 0x60000000, /* nop */
116 static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
117 [VXWORKS_PLT_INITIAL_ENTRY_SIZE
/ 4] =
119 0x819e0008, /* lwz r12,8(r30) */
120 0x7d8903a6, /* mtctr r12 */
121 0x819e0004, /* lwz r12,4(r30) */
122 0x4e800420, /* bctr */
123 0x60000000, /* nop */
124 0x60000000, /* nop */
125 0x60000000, /* nop */
126 0x60000000, /* nop */
129 /* For executables, we have some additional relocations in
130 .rela.plt.unloaded, for the kernel loader. */
132 /* The number of non-JMP_SLOT relocations per PLT0 slot. */
133 #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
134 /* The number of relocations in the PLTResolve slot. */
135 #define VXWORKS_PLTRESOLVE_RELOCS 2
136 /* The number of relocations in the PLTResolve slot when when creating
138 #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
140 /* Some instructions. */
141 #define ADDIS_11_11 0x3d6b0000
142 #define ADDIS_11_30 0x3d7e0000
143 #define ADDIS_12_12 0x3d8c0000
144 #define ADDI_11_11 0x396b0000
145 #define ADD_0_11_11 0x7c0b5a14
146 #define ADD_3_12_2 0x7c6c1214
147 #define ADD_11_0_11 0x7d605a14
149 #define BA 0x48000002
150 #define BCL_20_31 0x429f0005
151 #define BCTR 0x4e800420
152 #define BEQLR 0x4d820020
153 #define CMPWI_11_0 0x2c0b0000
154 #define LIS_11 0x3d600000
155 #define LIS_12 0x3d800000
156 #define LWZU_0_12 0x840c0000
157 #define LWZ_0_12 0x800c0000
158 #define LWZ_11_3 0x81630000
159 #define LWZ_11_11 0x816b0000
160 #define LWZ_11_30 0x817e0000
161 #define LWZ_12_3 0x81830000
162 #define LWZ_12_12 0x818c0000
163 #define MR_0_3 0x7c601b78
164 #define MR_3_0 0x7c030378
165 #define MFLR_0 0x7c0802a6
166 #define MFLR_12 0x7d8802a6
167 #define MTCTR_0 0x7c0903a6
168 #define MTCTR_11 0x7d6903a6
169 #define MTLR_0 0x7c0803a6
170 #define NOP 0x60000000
171 #define SUB_11_11_12 0x7d6c5850
173 /* Offset of tp and dtp pointers from start of TLS block. */
174 #define TP_OFFSET 0x7000
175 #define DTP_OFFSET 0x8000
177 /* The value of a defined global symbol. */
178 #define SYM_VAL(SYM) \
179 ((SYM)->root.u.def.section->output_section->vma \
180 + (SYM)->root.u.def.section->output_offset \
181 + (SYM)->root.u.def.value)
183 static reloc_howto_type
*ppc_elf_howto_table
[R_PPC_max
];
185 static reloc_howto_type ppc_elf_howto_raw
[] = {
186 /* This reloc does nothing. */
187 HOWTO (R_PPC_NONE
, /* type */
189 3, /* size (0 = byte, 1 = short, 2 = long) */
191 FALSE
, /* pc_relative */
193 complain_overflow_dont
, /* complain_on_overflow */
194 bfd_elf_generic_reloc
, /* special_function */
195 "R_PPC_NONE", /* name */
196 FALSE
, /* partial_inplace */
199 FALSE
), /* pcrel_offset */
201 /* A standard 32 bit relocation. */
202 HOWTO (R_PPC_ADDR32
, /* type */
204 2, /* size (0 = byte, 1 = short, 2 = long) */
206 FALSE
, /* pc_relative */
208 complain_overflow_dont
, /* complain_on_overflow */
209 bfd_elf_generic_reloc
, /* special_function */
210 "R_PPC_ADDR32", /* name */
211 FALSE
, /* partial_inplace */
213 0xffffffff, /* dst_mask */
214 FALSE
), /* pcrel_offset */
216 /* An absolute 26 bit branch; the lower two bits must be zero.
217 FIXME: we don't check that, we just clear them. */
218 HOWTO (R_PPC_ADDR24
, /* type */
220 2, /* size (0 = byte, 1 = short, 2 = long) */
222 FALSE
, /* pc_relative */
224 complain_overflow_signed
, /* complain_on_overflow */
225 bfd_elf_generic_reloc
, /* special_function */
226 "R_PPC_ADDR24", /* name */
227 FALSE
, /* partial_inplace */
229 0x3fffffc, /* dst_mask */
230 FALSE
), /* pcrel_offset */
232 /* A standard 16 bit relocation. */
233 HOWTO (R_PPC_ADDR16
, /* type */
235 1, /* size (0 = byte, 1 = short, 2 = long) */
237 FALSE
, /* pc_relative */
239 complain_overflow_bitfield
, /* complain_on_overflow */
240 bfd_elf_generic_reloc
, /* special_function */
241 "R_PPC_ADDR16", /* name */
242 FALSE
, /* partial_inplace */
244 0xffff, /* dst_mask */
245 FALSE
), /* pcrel_offset */
247 /* A 16 bit relocation without overflow. */
248 HOWTO (R_PPC_ADDR16_LO
, /* type */
250 1, /* size (0 = byte, 1 = short, 2 = long) */
252 FALSE
, /* pc_relative */
254 complain_overflow_dont
,/* complain_on_overflow */
255 bfd_elf_generic_reloc
, /* special_function */
256 "R_PPC_ADDR16_LO", /* name */
257 FALSE
, /* partial_inplace */
259 0xffff, /* dst_mask */
260 FALSE
), /* pcrel_offset */
262 /* The high order 16 bits of an address. */
263 HOWTO (R_PPC_ADDR16_HI
, /* type */
265 1, /* size (0 = byte, 1 = short, 2 = long) */
267 FALSE
, /* pc_relative */
269 complain_overflow_dont
, /* complain_on_overflow */
270 bfd_elf_generic_reloc
, /* special_function */
271 "R_PPC_ADDR16_HI", /* name */
272 FALSE
, /* partial_inplace */
274 0xffff, /* dst_mask */
275 FALSE
), /* pcrel_offset */
277 /* The high order 16 bits of an address, plus 1 if the contents of
278 the low 16 bits, treated as a signed number, is negative. */
279 HOWTO (R_PPC_ADDR16_HA
, /* type */
281 1, /* size (0 = byte, 1 = short, 2 = long) */
283 FALSE
, /* pc_relative */
285 complain_overflow_dont
, /* complain_on_overflow */
286 ppc_elf_addr16_ha_reloc
, /* special_function */
287 "R_PPC_ADDR16_HA", /* name */
288 FALSE
, /* partial_inplace */
290 0xffff, /* dst_mask */
291 FALSE
), /* pcrel_offset */
293 /* An absolute 16 bit branch; the lower two bits must be zero.
294 FIXME: we don't check that, we just clear them. */
295 HOWTO (R_PPC_ADDR14
, /* type */
297 2, /* size (0 = byte, 1 = short, 2 = long) */
299 FALSE
, /* pc_relative */
301 complain_overflow_signed
, /* complain_on_overflow */
302 bfd_elf_generic_reloc
, /* special_function */
303 "R_PPC_ADDR14", /* name */
304 FALSE
, /* partial_inplace */
306 0xfffc, /* dst_mask */
307 FALSE
), /* pcrel_offset */
309 /* An absolute 16 bit branch, for which bit 10 should be set to
310 indicate that the branch is expected to be taken. The lower two
311 bits must be zero. */
312 HOWTO (R_PPC_ADDR14_BRTAKEN
, /* type */
314 2, /* size (0 = byte, 1 = short, 2 = long) */
316 FALSE
, /* pc_relative */
318 complain_overflow_signed
, /* complain_on_overflow */
319 bfd_elf_generic_reloc
, /* special_function */
320 "R_PPC_ADDR14_BRTAKEN",/* name */
321 FALSE
, /* partial_inplace */
323 0xfffc, /* dst_mask */
324 FALSE
), /* pcrel_offset */
326 /* An absolute 16 bit branch, for which bit 10 should be set to
327 indicate that the branch is not expected to be taken. The lower
328 two bits must be zero. */
329 HOWTO (R_PPC_ADDR14_BRNTAKEN
, /* type */
331 2, /* size (0 = byte, 1 = short, 2 = long) */
333 FALSE
, /* pc_relative */
335 complain_overflow_signed
, /* complain_on_overflow */
336 bfd_elf_generic_reloc
, /* special_function */
337 "R_PPC_ADDR14_BRNTAKEN",/* name */
338 FALSE
, /* partial_inplace */
340 0xfffc, /* dst_mask */
341 FALSE
), /* pcrel_offset */
343 /* A relative 26 bit branch; the lower two bits must be zero. */
344 HOWTO (R_PPC_REL24
, /* type */
346 2, /* size (0 = byte, 1 = short, 2 = long) */
348 TRUE
, /* pc_relative */
350 complain_overflow_signed
, /* complain_on_overflow */
351 bfd_elf_generic_reloc
, /* special_function */
352 "R_PPC_REL24", /* name */
353 FALSE
, /* partial_inplace */
355 0x3fffffc, /* dst_mask */
356 TRUE
), /* pcrel_offset */
358 /* A relative 16 bit branch; the lower two bits must be zero. */
359 HOWTO (R_PPC_REL14
, /* type */
361 2, /* size (0 = byte, 1 = short, 2 = long) */
363 TRUE
, /* pc_relative */
365 complain_overflow_signed
, /* complain_on_overflow */
366 bfd_elf_generic_reloc
, /* special_function */
367 "R_PPC_REL14", /* name */
368 FALSE
, /* partial_inplace */
370 0xfffc, /* dst_mask */
371 TRUE
), /* pcrel_offset */
373 /* A relative 16 bit branch. Bit 10 should be set to indicate that
374 the branch is expected to be taken. The lower two bits must be
376 HOWTO (R_PPC_REL14_BRTAKEN
, /* type */
378 2, /* size (0 = byte, 1 = short, 2 = long) */
380 TRUE
, /* pc_relative */
382 complain_overflow_signed
, /* complain_on_overflow */
383 bfd_elf_generic_reloc
, /* special_function */
384 "R_PPC_REL14_BRTAKEN", /* name */
385 FALSE
, /* partial_inplace */
387 0xfffc, /* dst_mask */
388 TRUE
), /* pcrel_offset */
390 /* A relative 16 bit branch. Bit 10 should be set to indicate that
391 the branch is not expected to be taken. The lower two bits must
393 HOWTO (R_PPC_REL14_BRNTAKEN
, /* type */
395 2, /* size (0 = byte, 1 = short, 2 = long) */
397 TRUE
, /* pc_relative */
399 complain_overflow_signed
, /* complain_on_overflow */
400 bfd_elf_generic_reloc
, /* special_function */
401 "R_PPC_REL14_BRNTAKEN",/* name */
402 FALSE
, /* partial_inplace */
404 0xfffc, /* dst_mask */
405 TRUE
), /* pcrel_offset */
407 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
409 HOWTO (R_PPC_GOT16
, /* type */
411 1, /* size (0 = byte, 1 = short, 2 = long) */
413 FALSE
, /* pc_relative */
415 complain_overflow_signed
, /* complain_on_overflow */
416 bfd_elf_generic_reloc
, /* special_function */
417 "R_PPC_GOT16", /* name */
418 FALSE
, /* partial_inplace */
420 0xffff, /* dst_mask */
421 FALSE
), /* pcrel_offset */
423 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
425 HOWTO (R_PPC_GOT16_LO
, /* type */
427 1, /* size (0 = byte, 1 = short, 2 = long) */
429 FALSE
, /* pc_relative */
431 complain_overflow_dont
, /* complain_on_overflow */
432 bfd_elf_generic_reloc
, /* special_function */
433 "R_PPC_GOT16_LO", /* name */
434 FALSE
, /* partial_inplace */
436 0xffff, /* dst_mask */
437 FALSE
), /* pcrel_offset */
439 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
441 HOWTO (R_PPC_GOT16_HI
, /* type */
443 1, /* size (0 = byte, 1 = short, 2 = long) */
445 FALSE
, /* pc_relative */
447 complain_overflow_dont
, /* complain_on_overflow */
448 bfd_elf_generic_reloc
, /* special_function */
449 "R_PPC_GOT16_HI", /* name */
450 FALSE
, /* partial_inplace */
452 0xffff, /* dst_mask */
453 FALSE
), /* pcrel_offset */
455 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
457 HOWTO (R_PPC_GOT16_HA
, /* type */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
461 FALSE
, /* pc_relative */
463 complain_overflow_dont
, /* complain_on_overflow */
464 ppc_elf_addr16_ha_reloc
, /* special_function */
465 "R_PPC_GOT16_HA", /* name */
466 FALSE
, /* partial_inplace */
468 0xffff, /* dst_mask */
469 FALSE
), /* pcrel_offset */
471 /* Like R_PPC_REL24, but referring to the procedure linkage table
472 entry for the symbol. */
473 HOWTO (R_PPC_PLTREL24
, /* type */
475 2, /* size (0 = byte, 1 = short, 2 = long) */
477 TRUE
, /* pc_relative */
479 complain_overflow_signed
, /* complain_on_overflow */
480 bfd_elf_generic_reloc
, /* special_function */
481 "R_PPC_PLTREL24", /* name */
482 FALSE
, /* partial_inplace */
484 0x3fffffc, /* dst_mask */
485 TRUE
), /* pcrel_offset */
487 /* This is used only by the dynamic linker. The symbol should exist
488 both in the object being run and in some shared library. The
489 dynamic linker copies the data addressed by the symbol from the
490 shared library into the object, because the object being
491 run has to have the data at some particular address. */
492 HOWTO (R_PPC_COPY
, /* type */
494 2, /* size (0 = byte, 1 = short, 2 = long) */
496 FALSE
, /* pc_relative */
498 complain_overflow_dont
, /* complain_on_overflow */
499 bfd_elf_generic_reloc
, /* special_function */
500 "R_PPC_COPY", /* name */
501 FALSE
, /* partial_inplace */
504 FALSE
), /* pcrel_offset */
506 /* Like R_PPC_ADDR32, but used when setting global offset table
508 HOWTO (R_PPC_GLOB_DAT
, /* type */
510 2, /* size (0 = byte, 1 = short, 2 = long) */
512 FALSE
, /* pc_relative */
514 complain_overflow_dont
, /* complain_on_overflow */
515 bfd_elf_generic_reloc
, /* special_function */
516 "R_PPC_GLOB_DAT", /* name */
517 FALSE
, /* partial_inplace */
519 0xffffffff, /* dst_mask */
520 FALSE
), /* pcrel_offset */
522 /* Marks a procedure linkage table entry for a symbol. */
523 HOWTO (R_PPC_JMP_SLOT
, /* type */
525 2, /* size (0 = byte, 1 = short, 2 = long) */
527 FALSE
, /* pc_relative */
529 complain_overflow_dont
, /* complain_on_overflow */
530 bfd_elf_generic_reloc
, /* special_function */
531 "R_PPC_JMP_SLOT", /* name */
532 FALSE
, /* partial_inplace */
535 FALSE
), /* pcrel_offset */
537 /* Used only by the dynamic linker. When the object is run, this
538 longword is set to the load address of the object, plus the
540 HOWTO (R_PPC_RELATIVE
, /* type */
542 2, /* size (0 = byte, 1 = short, 2 = long) */
544 FALSE
, /* pc_relative */
546 complain_overflow_dont
, /* complain_on_overflow */
547 bfd_elf_generic_reloc
, /* special_function */
548 "R_PPC_RELATIVE", /* name */
549 FALSE
, /* partial_inplace */
551 0xffffffff, /* dst_mask */
552 FALSE
), /* pcrel_offset */
554 /* Like R_PPC_REL24, but uses the value of the symbol within the
555 object rather than the final value. Normally used for
556 _GLOBAL_OFFSET_TABLE_. */
557 HOWTO (R_PPC_LOCAL24PC
, /* type */
559 2, /* size (0 = byte, 1 = short, 2 = long) */
561 TRUE
, /* pc_relative */
563 complain_overflow_signed
, /* complain_on_overflow */
564 bfd_elf_generic_reloc
, /* special_function */
565 "R_PPC_LOCAL24PC", /* name */
566 FALSE
, /* partial_inplace */
568 0x3fffffc, /* dst_mask */
569 TRUE
), /* pcrel_offset */
571 /* Like R_PPC_ADDR32, but may be unaligned. */
572 HOWTO (R_PPC_UADDR32
, /* type */
574 2, /* size (0 = byte, 1 = short, 2 = long) */
576 FALSE
, /* pc_relative */
578 complain_overflow_dont
, /* complain_on_overflow */
579 bfd_elf_generic_reloc
, /* special_function */
580 "R_PPC_UADDR32", /* name */
581 FALSE
, /* partial_inplace */
583 0xffffffff, /* dst_mask */
584 FALSE
), /* pcrel_offset */
586 /* Like R_PPC_ADDR16, but may be unaligned. */
587 HOWTO (R_PPC_UADDR16
, /* type */
589 1, /* size (0 = byte, 1 = short, 2 = long) */
591 FALSE
, /* pc_relative */
593 complain_overflow_bitfield
, /* complain_on_overflow */
594 bfd_elf_generic_reloc
, /* special_function */
595 "R_PPC_UADDR16", /* name */
596 FALSE
, /* partial_inplace */
598 0xffff, /* dst_mask */
599 FALSE
), /* pcrel_offset */
601 /* 32-bit PC relative */
602 HOWTO (R_PPC_REL32
, /* type */
604 2, /* size (0 = byte, 1 = short, 2 = long) */
606 TRUE
, /* pc_relative */
608 complain_overflow_dont
, /* complain_on_overflow */
609 bfd_elf_generic_reloc
, /* special_function */
610 "R_PPC_REL32", /* name */
611 FALSE
, /* partial_inplace */
613 0xffffffff, /* dst_mask */
614 TRUE
), /* pcrel_offset */
616 /* 32-bit relocation to the symbol's procedure linkage table.
617 FIXME: not supported. */
618 HOWTO (R_PPC_PLT32
, /* type */
620 2, /* size (0 = byte, 1 = short, 2 = long) */
622 FALSE
, /* pc_relative */
624 complain_overflow_dont
, /* complain_on_overflow */
625 bfd_elf_generic_reloc
, /* special_function */
626 "R_PPC_PLT32", /* name */
627 FALSE
, /* partial_inplace */
630 FALSE
), /* pcrel_offset */
632 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
633 FIXME: not supported. */
634 HOWTO (R_PPC_PLTREL32
, /* type */
636 2, /* size (0 = byte, 1 = short, 2 = long) */
638 TRUE
, /* pc_relative */
640 complain_overflow_dont
, /* complain_on_overflow */
641 bfd_elf_generic_reloc
, /* special_function */
642 "R_PPC_PLTREL32", /* name */
643 FALSE
, /* partial_inplace */
646 TRUE
), /* pcrel_offset */
648 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
650 HOWTO (R_PPC_PLT16_LO
, /* type */
652 1, /* size (0 = byte, 1 = short, 2 = long) */
654 FALSE
, /* pc_relative */
656 complain_overflow_dont
, /* complain_on_overflow */
657 bfd_elf_generic_reloc
, /* special_function */
658 "R_PPC_PLT16_LO", /* name */
659 FALSE
, /* partial_inplace */
661 0xffff, /* dst_mask */
662 FALSE
), /* pcrel_offset */
664 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
666 HOWTO (R_PPC_PLT16_HI
, /* type */
668 1, /* size (0 = byte, 1 = short, 2 = long) */
670 FALSE
, /* pc_relative */
672 complain_overflow_dont
, /* complain_on_overflow */
673 bfd_elf_generic_reloc
, /* special_function */
674 "R_PPC_PLT16_HI", /* name */
675 FALSE
, /* partial_inplace */
677 0xffff, /* dst_mask */
678 FALSE
), /* pcrel_offset */
680 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
682 HOWTO (R_PPC_PLT16_HA
, /* type */
684 1, /* size (0 = byte, 1 = short, 2 = long) */
686 FALSE
, /* pc_relative */
688 complain_overflow_dont
, /* complain_on_overflow */
689 ppc_elf_addr16_ha_reloc
, /* special_function */
690 "R_PPC_PLT16_HA", /* name */
691 FALSE
, /* partial_inplace */
693 0xffff, /* dst_mask */
694 FALSE
), /* pcrel_offset */
696 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
698 HOWTO (R_PPC_SDAREL16
, /* type */
700 1, /* size (0 = byte, 1 = short, 2 = long) */
702 FALSE
, /* pc_relative */
704 complain_overflow_signed
, /* complain_on_overflow */
705 bfd_elf_generic_reloc
, /* special_function */
706 "R_PPC_SDAREL16", /* name */
707 FALSE
, /* partial_inplace */
709 0xffff, /* dst_mask */
710 FALSE
), /* pcrel_offset */
712 /* 16-bit section relative relocation. */
713 HOWTO (R_PPC_SECTOFF
, /* type */
715 1, /* size (0 = byte, 1 = short, 2 = long) */
717 FALSE
, /* pc_relative */
719 complain_overflow_signed
, /* complain_on_overflow */
720 bfd_elf_generic_reloc
, /* special_function */
721 "R_PPC_SECTOFF", /* name */
722 FALSE
, /* partial_inplace */
724 0xffff, /* dst_mask */
725 FALSE
), /* pcrel_offset */
727 /* 16-bit lower half section relative relocation. */
728 HOWTO (R_PPC_SECTOFF_LO
, /* type */
730 1, /* size (0 = byte, 1 = short, 2 = long) */
732 FALSE
, /* pc_relative */
734 complain_overflow_dont
, /* complain_on_overflow */
735 bfd_elf_generic_reloc
, /* special_function */
736 "R_PPC_SECTOFF_LO", /* name */
737 FALSE
, /* partial_inplace */
739 0xffff, /* dst_mask */
740 FALSE
), /* pcrel_offset */
742 /* 16-bit upper half section relative relocation. */
743 HOWTO (R_PPC_SECTOFF_HI
, /* type */
745 1, /* size (0 = byte, 1 = short, 2 = long) */
747 FALSE
, /* pc_relative */
749 complain_overflow_dont
, /* complain_on_overflow */
750 bfd_elf_generic_reloc
, /* special_function */
751 "R_PPC_SECTOFF_HI", /* name */
752 FALSE
, /* partial_inplace */
754 0xffff, /* dst_mask */
755 FALSE
), /* pcrel_offset */
757 /* 16-bit upper half adjusted section relative relocation. */
758 HOWTO (R_PPC_SECTOFF_HA
, /* type */
760 1, /* size (0 = byte, 1 = short, 2 = long) */
762 FALSE
, /* pc_relative */
764 complain_overflow_dont
, /* complain_on_overflow */
765 ppc_elf_addr16_ha_reloc
, /* special_function */
766 "R_PPC_SECTOFF_HA", /* name */
767 FALSE
, /* partial_inplace */
769 0xffff, /* dst_mask */
770 FALSE
), /* pcrel_offset */
772 /* Marker relocs for TLS. */
775 2, /* size (0 = byte, 1 = short, 2 = long) */
777 FALSE
, /* pc_relative */
779 complain_overflow_dont
, /* complain_on_overflow */
780 bfd_elf_generic_reloc
, /* special_function */
781 "R_PPC_TLS", /* name */
782 FALSE
, /* partial_inplace */
785 FALSE
), /* pcrel_offset */
789 2, /* size (0 = byte, 1 = short, 2 = long) */
791 FALSE
, /* pc_relative */
793 complain_overflow_dont
, /* complain_on_overflow */
794 bfd_elf_generic_reloc
, /* special_function */
795 "R_PPC_TLSGD", /* name */
796 FALSE
, /* partial_inplace */
799 FALSE
), /* pcrel_offset */
803 2, /* size (0 = byte, 1 = short, 2 = long) */
805 FALSE
, /* pc_relative */
807 complain_overflow_dont
, /* complain_on_overflow */
808 bfd_elf_generic_reloc
, /* special_function */
809 "R_PPC_TLSLD", /* name */
810 FALSE
, /* partial_inplace */
813 FALSE
), /* pcrel_offset */
815 /* Computes the load module index of the load module that contains the
816 definition of its TLS sym. */
817 HOWTO (R_PPC_DTPMOD32
,
819 2, /* size (0 = byte, 1 = short, 2 = long) */
821 FALSE
, /* pc_relative */
823 complain_overflow_dont
, /* complain_on_overflow */
824 ppc_elf_unhandled_reloc
, /* special_function */
825 "R_PPC_DTPMOD32", /* name */
826 FALSE
, /* partial_inplace */
828 0xffffffff, /* dst_mask */
829 FALSE
), /* pcrel_offset */
831 /* Computes a dtv-relative displacement, the difference between the value
832 of sym+add and the base address of the thread-local storage block that
833 contains the definition of sym, minus 0x8000. */
834 HOWTO (R_PPC_DTPREL32
,
836 2, /* size (0 = byte, 1 = short, 2 = long) */
838 FALSE
, /* pc_relative */
840 complain_overflow_dont
, /* complain_on_overflow */
841 ppc_elf_unhandled_reloc
, /* special_function */
842 "R_PPC_DTPREL32", /* name */
843 FALSE
, /* partial_inplace */
845 0xffffffff, /* dst_mask */
846 FALSE
), /* pcrel_offset */
848 /* A 16 bit dtprel reloc. */
849 HOWTO (R_PPC_DTPREL16
,
851 1, /* size (0 = byte, 1 = short, 2 = long) */
853 FALSE
, /* pc_relative */
855 complain_overflow_signed
, /* complain_on_overflow */
856 ppc_elf_unhandled_reloc
, /* special_function */
857 "R_PPC_DTPREL16", /* name */
858 FALSE
, /* partial_inplace */
860 0xffff, /* dst_mask */
861 FALSE
), /* pcrel_offset */
863 /* Like DTPREL16, but no overflow. */
864 HOWTO (R_PPC_DTPREL16_LO
,
866 1, /* size (0 = byte, 1 = short, 2 = long) */
868 FALSE
, /* pc_relative */
870 complain_overflow_dont
, /* complain_on_overflow */
871 ppc_elf_unhandled_reloc
, /* special_function */
872 "R_PPC_DTPREL16_LO", /* name */
873 FALSE
, /* partial_inplace */
875 0xffff, /* dst_mask */
876 FALSE
), /* pcrel_offset */
878 /* Like DTPREL16_LO, but next higher group of 16 bits. */
879 HOWTO (R_PPC_DTPREL16_HI
,
881 1, /* size (0 = byte, 1 = short, 2 = long) */
883 FALSE
, /* pc_relative */
885 complain_overflow_dont
, /* complain_on_overflow */
886 ppc_elf_unhandled_reloc
, /* special_function */
887 "R_PPC_DTPREL16_HI", /* name */
888 FALSE
, /* partial_inplace */
890 0xffff, /* dst_mask */
891 FALSE
), /* pcrel_offset */
893 /* Like DTPREL16_HI, but adjust for low 16 bits. */
894 HOWTO (R_PPC_DTPREL16_HA
,
896 1, /* size (0 = byte, 1 = short, 2 = long) */
898 FALSE
, /* pc_relative */
900 complain_overflow_dont
, /* complain_on_overflow */
901 ppc_elf_unhandled_reloc
, /* special_function */
902 "R_PPC_DTPREL16_HA", /* name */
903 FALSE
, /* partial_inplace */
905 0xffff, /* dst_mask */
906 FALSE
), /* pcrel_offset */
908 /* Computes a tp-relative displacement, the difference between the value of
909 sym+add and the value of the thread pointer (r13). */
910 HOWTO (R_PPC_TPREL32
,
912 2, /* size (0 = byte, 1 = short, 2 = long) */
914 FALSE
, /* pc_relative */
916 complain_overflow_dont
, /* complain_on_overflow */
917 ppc_elf_unhandled_reloc
, /* special_function */
918 "R_PPC_TPREL32", /* name */
919 FALSE
, /* partial_inplace */
921 0xffffffff, /* dst_mask */
922 FALSE
), /* pcrel_offset */
924 /* A 16 bit tprel reloc. */
925 HOWTO (R_PPC_TPREL16
,
927 1, /* size (0 = byte, 1 = short, 2 = long) */
929 FALSE
, /* pc_relative */
931 complain_overflow_signed
, /* complain_on_overflow */
932 ppc_elf_unhandled_reloc
, /* special_function */
933 "R_PPC_TPREL16", /* name */
934 FALSE
, /* partial_inplace */
936 0xffff, /* dst_mask */
937 FALSE
), /* pcrel_offset */
939 /* Like TPREL16, but no overflow. */
940 HOWTO (R_PPC_TPREL16_LO
,
942 1, /* size (0 = byte, 1 = short, 2 = long) */
944 FALSE
, /* pc_relative */
946 complain_overflow_dont
, /* complain_on_overflow */
947 ppc_elf_unhandled_reloc
, /* special_function */
948 "R_PPC_TPREL16_LO", /* name */
949 FALSE
, /* partial_inplace */
951 0xffff, /* dst_mask */
952 FALSE
), /* pcrel_offset */
954 /* Like TPREL16_LO, but next higher group of 16 bits. */
955 HOWTO (R_PPC_TPREL16_HI
,
957 1, /* size (0 = byte, 1 = short, 2 = long) */
959 FALSE
, /* pc_relative */
961 complain_overflow_dont
, /* complain_on_overflow */
962 ppc_elf_unhandled_reloc
, /* special_function */
963 "R_PPC_TPREL16_HI", /* name */
964 FALSE
, /* partial_inplace */
966 0xffff, /* dst_mask */
967 FALSE
), /* pcrel_offset */
969 /* Like TPREL16_HI, but adjust for low 16 bits. */
970 HOWTO (R_PPC_TPREL16_HA
,
972 1, /* size (0 = byte, 1 = short, 2 = long) */
974 FALSE
, /* pc_relative */
976 complain_overflow_dont
, /* complain_on_overflow */
977 ppc_elf_unhandled_reloc
, /* special_function */
978 "R_PPC_TPREL16_HA", /* name */
979 FALSE
, /* partial_inplace */
981 0xffff, /* dst_mask */
982 FALSE
), /* pcrel_offset */
984 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
985 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
986 to the first entry. */
987 HOWTO (R_PPC_GOT_TLSGD16
,
989 1, /* size (0 = byte, 1 = short, 2 = long) */
991 FALSE
, /* pc_relative */
993 complain_overflow_signed
, /* complain_on_overflow */
994 ppc_elf_unhandled_reloc
, /* special_function */
995 "R_PPC_GOT_TLSGD16", /* name */
996 FALSE
, /* partial_inplace */
998 0xffff, /* dst_mask */
999 FALSE
), /* pcrel_offset */
1001 /* Like GOT_TLSGD16, but no overflow. */
1002 HOWTO (R_PPC_GOT_TLSGD16_LO
,
1004 1, /* size (0 = byte, 1 = short, 2 = long) */
1006 FALSE
, /* pc_relative */
1008 complain_overflow_dont
, /* complain_on_overflow */
1009 ppc_elf_unhandled_reloc
, /* special_function */
1010 "R_PPC_GOT_TLSGD16_LO", /* name */
1011 FALSE
, /* partial_inplace */
1013 0xffff, /* dst_mask */
1014 FALSE
), /* pcrel_offset */
1016 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1017 HOWTO (R_PPC_GOT_TLSGD16_HI
,
1018 16, /* rightshift */
1019 1, /* size (0 = byte, 1 = short, 2 = long) */
1021 FALSE
, /* pc_relative */
1023 complain_overflow_dont
, /* complain_on_overflow */
1024 ppc_elf_unhandled_reloc
, /* special_function */
1025 "R_PPC_GOT_TLSGD16_HI", /* name */
1026 FALSE
, /* partial_inplace */
1028 0xffff, /* dst_mask */
1029 FALSE
), /* pcrel_offset */
1031 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1032 HOWTO (R_PPC_GOT_TLSGD16_HA
,
1033 16, /* rightshift */
1034 1, /* size (0 = byte, 1 = short, 2 = long) */
1036 FALSE
, /* pc_relative */
1038 complain_overflow_dont
, /* complain_on_overflow */
1039 ppc_elf_unhandled_reloc
, /* special_function */
1040 "R_PPC_GOT_TLSGD16_HA", /* name */
1041 FALSE
, /* partial_inplace */
1043 0xffff, /* dst_mask */
1044 FALSE
), /* pcrel_offset */
1046 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1047 with values (sym+add)@dtpmod and zero, and computes the offset to the
1049 HOWTO (R_PPC_GOT_TLSLD16
,
1051 1, /* size (0 = byte, 1 = short, 2 = long) */
1053 FALSE
, /* pc_relative */
1055 complain_overflow_signed
, /* complain_on_overflow */
1056 ppc_elf_unhandled_reloc
, /* special_function */
1057 "R_PPC_GOT_TLSLD16", /* name */
1058 FALSE
, /* partial_inplace */
1060 0xffff, /* dst_mask */
1061 FALSE
), /* pcrel_offset */
1063 /* Like GOT_TLSLD16, but no overflow. */
1064 HOWTO (R_PPC_GOT_TLSLD16_LO
,
1066 1, /* size (0 = byte, 1 = short, 2 = long) */
1068 FALSE
, /* pc_relative */
1070 complain_overflow_dont
, /* complain_on_overflow */
1071 ppc_elf_unhandled_reloc
, /* special_function */
1072 "R_PPC_GOT_TLSLD16_LO", /* name */
1073 FALSE
, /* partial_inplace */
1075 0xffff, /* dst_mask */
1076 FALSE
), /* pcrel_offset */
1078 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1079 HOWTO (R_PPC_GOT_TLSLD16_HI
,
1080 16, /* rightshift */
1081 1, /* size (0 = byte, 1 = short, 2 = long) */
1083 FALSE
, /* pc_relative */
1085 complain_overflow_dont
, /* complain_on_overflow */
1086 ppc_elf_unhandled_reloc
, /* special_function */
1087 "R_PPC_GOT_TLSLD16_HI", /* name */
1088 FALSE
, /* partial_inplace */
1090 0xffff, /* dst_mask */
1091 FALSE
), /* pcrel_offset */
1093 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1094 HOWTO (R_PPC_GOT_TLSLD16_HA
,
1095 16, /* rightshift */
1096 1, /* size (0 = byte, 1 = short, 2 = long) */
1098 FALSE
, /* pc_relative */
1100 complain_overflow_dont
, /* complain_on_overflow */
1101 ppc_elf_unhandled_reloc
, /* special_function */
1102 "R_PPC_GOT_TLSLD16_HA", /* name */
1103 FALSE
, /* partial_inplace */
1105 0xffff, /* dst_mask */
1106 FALSE
), /* pcrel_offset */
1108 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1109 the offset to the entry. */
1110 HOWTO (R_PPC_GOT_DTPREL16
,
1112 1, /* size (0 = byte, 1 = short, 2 = long) */
1114 FALSE
, /* pc_relative */
1116 complain_overflow_signed
, /* complain_on_overflow */
1117 ppc_elf_unhandled_reloc
, /* special_function */
1118 "R_PPC_GOT_DTPREL16", /* name */
1119 FALSE
, /* partial_inplace */
1121 0xffff, /* dst_mask */
1122 FALSE
), /* pcrel_offset */
1124 /* Like GOT_DTPREL16, but no overflow. */
1125 HOWTO (R_PPC_GOT_DTPREL16_LO
,
1127 1, /* size (0 = byte, 1 = short, 2 = long) */
1129 FALSE
, /* pc_relative */
1131 complain_overflow_dont
, /* complain_on_overflow */
1132 ppc_elf_unhandled_reloc
, /* special_function */
1133 "R_PPC_GOT_DTPREL16_LO", /* name */
1134 FALSE
, /* partial_inplace */
1136 0xffff, /* dst_mask */
1137 FALSE
), /* pcrel_offset */
1139 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1140 HOWTO (R_PPC_GOT_DTPREL16_HI
,
1141 16, /* rightshift */
1142 1, /* size (0 = byte, 1 = short, 2 = long) */
1144 FALSE
, /* pc_relative */
1146 complain_overflow_dont
, /* complain_on_overflow */
1147 ppc_elf_unhandled_reloc
, /* special_function */
1148 "R_PPC_GOT_DTPREL16_HI", /* name */
1149 FALSE
, /* partial_inplace */
1151 0xffff, /* dst_mask */
1152 FALSE
), /* pcrel_offset */
1154 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1155 HOWTO (R_PPC_GOT_DTPREL16_HA
,
1156 16, /* rightshift */
1157 1, /* size (0 = byte, 1 = short, 2 = long) */
1159 FALSE
, /* pc_relative */
1161 complain_overflow_dont
, /* complain_on_overflow */
1162 ppc_elf_unhandled_reloc
, /* special_function */
1163 "R_PPC_GOT_DTPREL16_HA", /* name */
1164 FALSE
, /* partial_inplace */
1166 0xffff, /* dst_mask */
1167 FALSE
), /* pcrel_offset */
1169 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1170 offset to the entry. */
1171 HOWTO (R_PPC_GOT_TPREL16
,
1173 1, /* size (0 = byte, 1 = short, 2 = long) */
1175 FALSE
, /* pc_relative */
1177 complain_overflow_signed
, /* complain_on_overflow */
1178 ppc_elf_unhandled_reloc
, /* special_function */
1179 "R_PPC_GOT_TPREL16", /* name */
1180 FALSE
, /* partial_inplace */
1182 0xffff, /* dst_mask */
1183 FALSE
), /* pcrel_offset */
1185 /* Like GOT_TPREL16, but no overflow. */
1186 HOWTO (R_PPC_GOT_TPREL16_LO
,
1188 1, /* size (0 = byte, 1 = short, 2 = long) */
1190 FALSE
, /* pc_relative */
1192 complain_overflow_dont
, /* complain_on_overflow */
1193 ppc_elf_unhandled_reloc
, /* special_function */
1194 "R_PPC_GOT_TPREL16_LO", /* name */
1195 FALSE
, /* partial_inplace */
1197 0xffff, /* dst_mask */
1198 FALSE
), /* pcrel_offset */
1200 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1201 HOWTO (R_PPC_GOT_TPREL16_HI
,
1202 16, /* rightshift */
1203 1, /* size (0 = byte, 1 = short, 2 = long) */
1205 FALSE
, /* pc_relative */
1207 complain_overflow_dont
, /* complain_on_overflow */
1208 ppc_elf_unhandled_reloc
, /* special_function */
1209 "R_PPC_GOT_TPREL16_HI", /* name */
1210 FALSE
, /* partial_inplace */
1212 0xffff, /* dst_mask */
1213 FALSE
), /* pcrel_offset */
1215 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1216 HOWTO (R_PPC_GOT_TPREL16_HA
,
1217 16, /* rightshift */
1218 1, /* size (0 = byte, 1 = short, 2 = long) */
1220 FALSE
, /* pc_relative */
1222 complain_overflow_dont
, /* complain_on_overflow */
1223 ppc_elf_unhandled_reloc
, /* special_function */
1224 "R_PPC_GOT_TPREL16_HA", /* name */
1225 FALSE
, /* partial_inplace */
1227 0xffff, /* dst_mask */
1228 FALSE
), /* pcrel_offset */
1230 /* The remaining relocs are from the Embedded ELF ABI, and are not
1231 in the SVR4 ELF ABI. */
1233 /* 32 bit value resulting from the addend minus the symbol. */
1234 HOWTO (R_PPC_EMB_NADDR32
, /* type */
1236 2, /* size (0 = byte, 1 = short, 2 = long) */
1238 FALSE
, /* pc_relative */
1240 complain_overflow_dont
, /* complain_on_overflow */
1241 bfd_elf_generic_reloc
, /* special_function */
1242 "R_PPC_EMB_NADDR32", /* name */
1243 FALSE
, /* partial_inplace */
1245 0xffffffff, /* dst_mask */
1246 FALSE
), /* pcrel_offset */
1248 /* 16 bit value resulting from the addend minus the symbol. */
1249 HOWTO (R_PPC_EMB_NADDR16
, /* type */
1251 1, /* size (0 = byte, 1 = short, 2 = long) */
1253 FALSE
, /* pc_relative */
1255 complain_overflow_signed
, /* complain_on_overflow */
1256 bfd_elf_generic_reloc
, /* special_function */
1257 "R_PPC_EMB_NADDR16", /* name */
1258 FALSE
, /* partial_inplace */
1260 0xffff, /* dst_mask */
1261 FALSE
), /* pcrel_offset */
1263 /* 16 bit value resulting from the addend minus the symbol. */
1264 HOWTO (R_PPC_EMB_NADDR16_LO
, /* type */
1266 1, /* size (0 = byte, 1 = short, 2 = long) */
1268 FALSE
, /* pc_relative */
1270 complain_overflow_dont
,/* complain_on_overflow */
1271 bfd_elf_generic_reloc
, /* special_function */
1272 "R_PPC_EMB_ADDR16_LO", /* name */
1273 FALSE
, /* partial_inplace */
1275 0xffff, /* dst_mask */
1276 FALSE
), /* pcrel_offset */
1278 /* The high order 16 bits of the addend minus the symbol. */
1279 HOWTO (R_PPC_EMB_NADDR16_HI
, /* type */
1280 16, /* rightshift */
1281 1, /* size (0 = byte, 1 = short, 2 = long) */
1283 FALSE
, /* pc_relative */
1285 complain_overflow_dont
, /* complain_on_overflow */
1286 bfd_elf_generic_reloc
, /* special_function */
1287 "R_PPC_EMB_NADDR16_HI", /* name */
1288 FALSE
, /* partial_inplace */
1290 0xffff, /* dst_mask */
1291 FALSE
), /* pcrel_offset */
1293 /* The high order 16 bits of the result of the addend minus the address,
1294 plus 1 if the contents of the low 16 bits, treated as a signed number,
1296 HOWTO (R_PPC_EMB_NADDR16_HA
, /* type */
1297 16, /* rightshift */
1298 1, /* size (0 = byte, 1 = short, 2 = long) */
1300 FALSE
, /* pc_relative */
1302 complain_overflow_dont
, /* complain_on_overflow */
1303 ppc_elf_addr16_ha_reloc
, /* special_function */
1304 "R_PPC_EMB_NADDR16_HA", /* name */
1305 FALSE
, /* partial_inplace */
1307 0xffff, /* dst_mask */
1308 FALSE
), /* pcrel_offset */
1310 /* 16 bit value resulting from allocating a 4 byte word to hold an
1311 address in the .sdata section, and returning the offset from
1312 _SDA_BASE_ for that relocation. */
1313 HOWTO (R_PPC_EMB_SDAI16
, /* type */
1315 1, /* size (0 = byte, 1 = short, 2 = long) */
1317 FALSE
, /* pc_relative */
1319 complain_overflow_signed
, /* complain_on_overflow */
1320 bfd_elf_generic_reloc
, /* special_function */
1321 "R_PPC_EMB_SDAI16", /* name */
1322 FALSE
, /* partial_inplace */
1324 0xffff, /* dst_mask */
1325 FALSE
), /* pcrel_offset */
1327 /* 16 bit value resulting from allocating a 4 byte word to hold an
1328 address in the .sdata2 section, and returning the offset from
1329 _SDA2_BASE_ for that relocation. */
1330 HOWTO (R_PPC_EMB_SDA2I16
, /* type */
1332 1, /* size (0 = byte, 1 = short, 2 = long) */
1334 FALSE
, /* pc_relative */
1336 complain_overflow_signed
, /* complain_on_overflow */
1337 bfd_elf_generic_reloc
, /* special_function */
1338 "R_PPC_EMB_SDA2I16", /* name */
1339 FALSE
, /* partial_inplace */
1341 0xffff, /* dst_mask */
1342 FALSE
), /* pcrel_offset */
1344 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1345 small data items. */
1346 HOWTO (R_PPC_EMB_SDA2REL
, /* type */
1348 1, /* size (0 = byte, 1 = short, 2 = long) */
1350 FALSE
, /* pc_relative */
1352 complain_overflow_signed
, /* complain_on_overflow */
1353 bfd_elf_generic_reloc
, /* special_function */
1354 "R_PPC_EMB_SDA2REL", /* name */
1355 FALSE
, /* partial_inplace */
1357 0xffff, /* dst_mask */
1358 FALSE
), /* pcrel_offset */
1360 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1361 signed offset from the appropriate base, and filling in the register
1362 field with the appropriate register (0, 2, or 13). */
1363 HOWTO (R_PPC_EMB_SDA21
, /* type */
1365 2, /* size (0 = byte, 1 = short, 2 = long) */
1367 FALSE
, /* pc_relative */
1369 complain_overflow_signed
, /* complain_on_overflow */
1370 bfd_elf_generic_reloc
, /* special_function */
1371 "R_PPC_EMB_SDA21", /* name */
1372 FALSE
, /* partial_inplace */
1374 0xffff, /* dst_mask */
1375 FALSE
), /* pcrel_offset */
1377 /* Relocation not handled: R_PPC_EMB_MRKREF */
1378 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1379 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1380 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1381 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1382 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1384 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1385 in the 16 bit signed offset from the appropriate base, and filling in the
1386 register field with the appropriate register (0, 2, or 13). */
1387 HOWTO (R_PPC_EMB_RELSDA
, /* type */
1389 1, /* size (0 = byte, 1 = short, 2 = long) */
1391 FALSE
, /* pc_relative */
1393 complain_overflow_signed
, /* complain_on_overflow */
1394 bfd_elf_generic_reloc
, /* special_function */
1395 "R_PPC_EMB_RELSDA", /* name */
1396 FALSE
, /* partial_inplace */
1398 0xffff, /* dst_mask */
1399 FALSE
), /* pcrel_offset */
1401 /* A relative 8 bit branch. */
1402 HOWTO (R_PPC_VLE_REL8
, /* type */
1404 1, /* size (0 = byte, 1 = short, 2 = long) */
1406 TRUE
, /* pc_relative */
1408 complain_overflow_signed
, /* complain_on_overflow */
1409 bfd_elf_generic_reloc
, /* special_function */
1410 "R_PPC_VLE_REL8", /* name */
1411 FALSE
, /* partial_inplace */
1413 0xff, /* dst_mask */
1414 TRUE
), /* pcrel_offset */
1416 /* A relative 15 bit branch. */
1417 HOWTO (R_PPC_VLE_REL15
, /* type */
1419 2, /* size (0 = byte, 1 = short, 2 = long) */
1421 TRUE
, /* pc_relative */
1423 complain_overflow_signed
, /* complain_on_overflow */
1424 bfd_elf_generic_reloc
, /* special_function */
1425 "R_PPC_VLE_REL15", /* name */
1426 FALSE
, /* partial_inplace */
1428 0xfe, /* dst_mask */
1429 TRUE
), /* pcrel_offset */
1431 /* A relative 24 bit branch. */
1432 HOWTO (R_PPC_VLE_REL24
, /* type */
1434 2, /* size (0 = byte, 1 = short, 2 = long) */
1436 TRUE
, /* pc_relative */
1438 complain_overflow_signed
, /* complain_on_overflow */
1439 bfd_elf_generic_reloc
, /* special_function */
1440 "R_PPC_VLE_REL24", /* name */
1441 FALSE
, /* partial_inplace */
1443 0x1fffffe, /* dst_mask */
1444 TRUE
), /* pcrel_offset */
1446 /* The 16 LSBS in split16a format. */
1447 HOWTO (R_PPC_VLE_LO16A
, /* type */
1449 2, /* size (0 = byte, 1 = short, 2 = long) */
1451 FALSE
, /* pc_relative */
1453 complain_overflow_dont
, /* complain_on_overflow */
1454 bfd_elf_generic_reloc
, /* special_function */
1455 "R_PPC_VLE_LO16A", /* name */
1456 FALSE
, /* partial_inplace */
1458 0x1f007ff, /* dst_mask */
1459 FALSE
), /* pcrel_offset */
1461 /* The 16 LSBS in split16d format. */
1462 HOWTO (R_PPC_VLE_LO16D
, /* type */
1464 2, /* size (0 = byte, 1 = short, 2 = long) */
1466 FALSE
, /* pc_relative */
1468 complain_overflow_dont
, /* complain_on_overflow */
1469 bfd_elf_generic_reloc
, /* special_function */
1470 "R_PPC_VLE_LO16D", /* name */
1471 FALSE
, /* partial_inplace */
1473 0x1f07ff, /* dst_mask */
1474 FALSE
), /* pcrel_offset */
1476 /* Bits 16-31 split16a format. */
1477 HOWTO (R_PPC_VLE_HI16A
, /* type */
1478 16, /* rightshift */
1479 2, /* size (0 = byte, 1 = short, 2 = long) */
1481 FALSE
, /* pc_relative */
1483 complain_overflow_dont
, /* complain_on_overflow */
1484 bfd_elf_generic_reloc
, /* special_function */
1485 "R_PPC_VLE_HI16A", /* name */
1486 FALSE
, /* partial_inplace */
1488 0x1f007ff, /* dst_mask */
1489 FALSE
), /* pcrel_offset */
1491 /* Bits 16-31 split16d format. */
1492 HOWTO (R_PPC_VLE_HI16D
, /* type */
1493 16, /* rightshift */
1494 2, /* size (0 = byte, 1 = short, 2 = long) */
1496 FALSE
, /* pc_relative */
1498 complain_overflow_dont
, /* complain_on_overflow */
1499 bfd_elf_generic_reloc
, /* special_function */
1500 "R_PPC_VLE_HI16D", /* name */
1501 FALSE
, /* partial_inplace */
1503 0x1f07ff, /* dst_mask */
1504 FALSE
), /* pcrel_offset */
1506 /* Bits 16-31 (High Adjusted) in split16a format. */
1507 HOWTO (R_PPC_VLE_HA16A
, /* type */
1508 16, /* rightshift */
1509 2, /* size (0 = byte, 1 = short, 2 = long) */
1511 FALSE
, /* pc_relative */
1513 complain_overflow_dont
, /* complain_on_overflow */
1514 bfd_elf_generic_reloc
, /* special_function */
1515 "R_PPC_VLE_HA16A", /* name */
1516 FALSE
, /* partial_inplace */
1518 0x1f007ff, /* dst_mask */
1519 FALSE
), /* pcrel_offset */
1521 /* Bits 16-31 (High Adjusted) in split16d format. */
1522 HOWTO (R_PPC_VLE_HA16D
, /* type */
1523 16, /* rightshift */
1524 2, /* size (0 = byte, 1 = short, 2 = long) */
1526 FALSE
, /* pc_relative */
1528 complain_overflow_dont
, /* complain_on_overflow */
1529 bfd_elf_generic_reloc
, /* special_function */
1530 "R_PPC_VLE_HA16D", /* name */
1531 FALSE
, /* partial_inplace */
1533 0x1f07ff, /* dst_mask */
1534 FALSE
), /* pcrel_offset */
1536 /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
1537 instructions. If the register base is 0 then the linker changes
1538 the e_add16i to an e_li instruction. */
1539 HOWTO (R_PPC_VLE_SDA21
, /* type */
1541 2, /* size (0 = byte, 1 = short, 2 = long) */
1543 FALSE
, /* pc_relative */
1545 complain_overflow_signed
, /* complain_on_overflow */
1546 bfd_elf_generic_reloc
, /* special_function */
1547 "R_PPC_VLE_SDA21", /* name */
1548 FALSE
, /* partial_inplace */
1550 0xffff, /* dst_mask */
1551 FALSE
), /* pcrel_offset */
1553 /* Like R_PPC_VLE_SDA21 but ignore overflow. */
1554 HOWTO (R_PPC_VLE_SDA21_LO
, /* type */
1556 2, /* size (0 = byte, 1 = short, 2 = long) */
1558 FALSE
, /* pc_relative */
1560 complain_overflow_dont
, /* complain_on_overflow */
1561 bfd_elf_generic_reloc
, /* special_function */
1562 "R_PPC_VLE_SDA21_LO", /* name */
1563 FALSE
, /* partial_inplace */
1565 0xffff, /* dst_mask */
1566 FALSE
), /* pcrel_offset */
1568 /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */
1569 HOWTO (R_PPC_VLE_SDAREL_LO16A
,/* type */
1571 2, /* size (0 = byte, 1 = short, 2 = long) */
1573 FALSE
, /* pc_relative */
1575 complain_overflow_dont
, /* complain_on_overflow */
1576 bfd_elf_generic_reloc
, /* special_function */
1577 "R_PPC_VLE_SDAREL_LO16A", /* name */
1578 FALSE
, /* partial_inplace */
1580 0x1f007ff, /* dst_mask */
1581 FALSE
), /* pcrel_offset */
1583 /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */
1584 HOWTO (R_PPC_VLE_SDAREL_LO16D
, /* type */
1586 2, /* size (0 = byte, 1 = short, 2 = long) */
1588 FALSE
, /* pc_relative */
1590 complain_overflow_dont
, /* complain_on_overflow */
1591 bfd_elf_generic_reloc
, /* special_function */
1592 "R_PPC_VLE_SDAREL_LO16D", /* name */
1593 FALSE
, /* partial_inplace */
1595 0x1f07ff, /* dst_mask */
1596 FALSE
), /* pcrel_offset */
1598 /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */
1599 HOWTO (R_PPC_VLE_SDAREL_HI16A
, /* type */
1600 16, /* rightshift */
1601 2, /* size (0 = byte, 1 = short, 2 = long) */
1603 FALSE
, /* pc_relative */
1605 complain_overflow_dont
, /* complain_on_overflow */
1606 bfd_elf_generic_reloc
, /* special_function */
1607 "R_PPC_VLE_SDAREL_HI16A", /* name */
1608 FALSE
, /* partial_inplace */
1610 0x1f007ff, /* dst_mask */
1611 FALSE
), /* pcrel_offset */
1613 /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */
1614 HOWTO (R_PPC_VLE_SDAREL_HI16D
, /* type */
1615 16, /* rightshift */
1616 2, /* size (0 = byte, 1 = short, 2 = long) */
1618 FALSE
, /* pc_relative */
1620 complain_overflow_dont
, /* complain_on_overflow */
1621 bfd_elf_generic_reloc
, /* special_function */
1622 "R_PPC_VLE_SDAREL_HI16D", /* name */
1623 FALSE
, /* partial_inplace */
1625 0x1f07ff, /* dst_mask */
1626 FALSE
), /* pcrel_offset */
1628 /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */
1629 HOWTO (R_PPC_VLE_SDAREL_HA16A
, /* type */
1630 16, /* rightshift */
1631 2, /* size (0 = byte, 1 = short, 2 = long) */
1633 FALSE
, /* pc_relative */
1635 complain_overflow_dont
, /* complain_on_overflow */
1636 bfd_elf_generic_reloc
, /* special_function */
1637 "R_PPC_VLE_SDAREL_HA16A", /* name */
1638 FALSE
, /* partial_inplace */
1640 0x1f007ff, /* dst_mask */
1641 FALSE
), /* pcrel_offset */
1643 /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */
1644 HOWTO (R_PPC_VLE_SDAREL_HA16D
, /* type */
1645 16, /* rightshift */
1646 2, /* size (0 = byte, 1 = short, 2 = long) */
1648 FALSE
, /* pc_relative */
1650 complain_overflow_dont
, /* complain_on_overflow */
1651 bfd_elf_generic_reloc
, /* special_function */
1652 "R_PPC_VLE_SDAREL_HA16D", /* name */
1653 FALSE
, /* partial_inplace */
1655 0x1f07ff, /* dst_mask */
1656 FALSE
), /* pcrel_offset */
1658 HOWTO (R_PPC_IRELATIVE
, /* type */
1660 2, /* size (0 = byte, 1 = short, 2 = long) */
1662 FALSE
, /* pc_relative */
1664 complain_overflow_dont
, /* complain_on_overflow */
1665 bfd_elf_generic_reloc
, /* special_function */
1666 "R_PPC_IRELATIVE", /* name */
1667 FALSE
, /* partial_inplace */
1669 0xffffffff, /* dst_mask */
1670 FALSE
), /* pcrel_offset */
1672 /* A 16 bit relative relocation. */
1673 HOWTO (R_PPC_REL16
, /* type */
1675 1, /* size (0 = byte, 1 = short, 2 = long) */
1677 TRUE
, /* pc_relative */
1679 complain_overflow_signed
, /* complain_on_overflow */
1680 bfd_elf_generic_reloc
, /* special_function */
1681 "R_PPC_REL16", /* name */
1682 FALSE
, /* partial_inplace */
1684 0xffff, /* dst_mask */
1685 TRUE
), /* pcrel_offset */
1687 /* A 16 bit relative relocation without overflow. */
1688 HOWTO (R_PPC_REL16_LO
, /* type */
1690 1, /* size (0 = byte, 1 = short, 2 = long) */
1692 TRUE
, /* pc_relative */
1694 complain_overflow_dont
,/* complain_on_overflow */
1695 bfd_elf_generic_reloc
, /* special_function */
1696 "R_PPC_REL16_LO", /* name */
1697 FALSE
, /* partial_inplace */
1699 0xffff, /* dst_mask */
1700 TRUE
), /* pcrel_offset */
1702 /* The high order 16 bits of a relative address. */
1703 HOWTO (R_PPC_REL16_HI
, /* type */
1704 16, /* rightshift */
1705 1, /* size (0 = byte, 1 = short, 2 = long) */
1707 TRUE
, /* pc_relative */
1709 complain_overflow_dont
, /* complain_on_overflow */
1710 bfd_elf_generic_reloc
, /* special_function */
1711 "R_PPC_REL16_HI", /* name */
1712 FALSE
, /* partial_inplace */
1714 0xffff, /* dst_mask */
1715 TRUE
), /* pcrel_offset */
1717 /* The high order 16 bits of a relative address, plus 1 if the contents of
1718 the low 16 bits, treated as a signed number, is negative. */
1719 HOWTO (R_PPC_REL16_HA
, /* type */
1720 16, /* rightshift */
1721 1, /* size (0 = byte, 1 = short, 2 = long) */
1723 TRUE
, /* pc_relative */
1725 complain_overflow_dont
, /* complain_on_overflow */
1726 ppc_elf_addr16_ha_reloc
, /* special_function */
1727 "R_PPC_REL16_HA", /* name */
1728 FALSE
, /* partial_inplace */
1730 0xffff, /* dst_mask */
1731 TRUE
), /* pcrel_offset */
1733 /* Like R_PPC_REL16_HA but for split field in addpcis. */
1734 HOWTO (R_PPC_REL16DX_HA
, /* type */
1735 16, /* rightshift */
1736 2, /* size (0 = byte, 1 = short, 2 = long) */
1738 TRUE
, /* pc_relative */
1740 complain_overflow_signed
, /* complain_on_overflow */
1741 ppc_elf_addr16_ha_reloc
, /* special_function */
1742 "R_PPC_REL16DX_HA", /* name */
1743 FALSE
, /* partial_inplace */
1745 0x1fffc1, /* dst_mask */
1746 TRUE
), /* pcrel_offset */
1748 /* GNU extension to record C++ vtable hierarchy. */
1749 HOWTO (R_PPC_GNU_VTINHERIT
, /* type */
1751 0, /* size (0 = byte, 1 = short, 2 = long) */
1753 FALSE
, /* pc_relative */
1755 complain_overflow_dont
, /* complain_on_overflow */
1756 NULL
, /* special_function */
1757 "R_PPC_GNU_VTINHERIT", /* name */
1758 FALSE
, /* partial_inplace */
1761 FALSE
), /* pcrel_offset */
1763 /* GNU extension to record C++ vtable member usage. */
1764 HOWTO (R_PPC_GNU_VTENTRY
, /* type */
1766 0, /* size (0 = byte, 1 = short, 2 = long) */
1768 FALSE
, /* pc_relative */
1770 complain_overflow_dont
, /* complain_on_overflow */
1771 NULL
, /* special_function */
1772 "R_PPC_GNU_VTENTRY", /* name */
1773 FALSE
, /* partial_inplace */
1776 FALSE
), /* pcrel_offset */
1778 /* Phony reloc to handle AIX style TOC entries. */
1779 HOWTO (R_PPC_TOC16
, /* type */
1781 1, /* size (0 = byte, 1 = short, 2 = long) */
1783 FALSE
, /* pc_relative */
1785 complain_overflow_signed
, /* complain_on_overflow */
1786 bfd_elf_generic_reloc
, /* special_function */
1787 "R_PPC_TOC16", /* name */
1788 FALSE
, /* partial_inplace */
1790 0xffff, /* dst_mask */
1791 FALSE
), /* pcrel_offset */
1794 /* External 32-bit PPC structure for PRPSINFO. This structure is
1795 ABI-defined, thus we choose to use char arrays here in order to
1796 avoid dealing with different types in different architectures.
1798 The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
1799 most non-PPC architectures use `short int'.
1801 This structure will ultimately be written in the corefile's note
1802 section, as the PRPSINFO. */
1804 struct elf_external_ppc_linux_prpsinfo32
1806 char pr_state
; /* Numeric process state. */
1807 char pr_sname
; /* Char for pr_state. */
1808 char pr_zomb
; /* Zombie. */
1809 char pr_nice
; /* Nice val. */
1810 char pr_flag
[4]; /* Flags. */
1817 char pr_fname
[16]; /* Filename of executable. */
1818 char pr_psargs
[80]; /* Initial part of arg list. */
1821 /* Helper function to copy an elf_internal_linux_prpsinfo in host
1822 endian to an elf_external_ppc_linux_prpsinfo32 in target endian. */
1825 swap_ppc_linux_prpsinfo32_out (bfd
*obfd
,
1826 const struct elf_internal_linux_prpsinfo
*from
,
1827 struct elf_external_ppc_linux_prpsinfo32
*to
)
1829 bfd_put_8 (obfd
, from
->pr_state
, &to
->pr_state
);
1830 bfd_put_8 (obfd
, from
->pr_sname
, &to
->pr_sname
);
1831 bfd_put_8 (obfd
, from
->pr_zomb
, &to
->pr_zomb
);
1832 bfd_put_8 (obfd
, from
->pr_nice
, &to
->pr_nice
);
1833 bfd_put_32 (obfd
, from
->pr_flag
, to
->pr_flag
);
1834 bfd_put_32 (obfd
, from
->pr_uid
, to
->pr_uid
);
1835 bfd_put_32 (obfd
, from
->pr_gid
, to
->pr_gid
);
1836 bfd_put_32 (obfd
, from
->pr_pid
, to
->pr_pid
);
1837 bfd_put_32 (obfd
, from
->pr_ppid
, to
->pr_ppid
);
1838 bfd_put_32 (obfd
, from
->pr_pgrp
, to
->pr_pgrp
);
1839 bfd_put_32 (obfd
, from
->pr_sid
, to
->pr_sid
);
1840 strncpy (to
->pr_fname
, from
->pr_fname
, sizeof (to
->pr_fname
));
1841 strncpy (to
->pr_psargs
, from
->pr_psargs
, sizeof (to
->pr_psargs
));
1844 /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1847 ppc_elf_howto_init (void)
1849 unsigned int i
, type
;
1852 i
< sizeof (ppc_elf_howto_raw
) / sizeof (ppc_elf_howto_raw
[0]);
1855 type
= ppc_elf_howto_raw
[i
].type
;
1856 if (type
>= (sizeof (ppc_elf_howto_table
)
1857 / sizeof (ppc_elf_howto_table
[0])))
1859 ppc_elf_howto_table
[type
] = &ppc_elf_howto_raw
[i
];
1863 static reloc_howto_type
*
1864 ppc_elf_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
1865 bfd_reloc_code_real_type code
)
1867 enum elf_ppc_reloc_type r
;
1869 /* Initialize howto table if not already done. */
1870 if (!ppc_elf_howto_table
[R_PPC_ADDR32
])
1871 ppc_elf_howto_init ();
1878 case BFD_RELOC_NONE
: r
= R_PPC_NONE
; break;
1879 case BFD_RELOC_32
: r
= R_PPC_ADDR32
; break;
1880 case BFD_RELOC_PPC_BA26
: r
= R_PPC_ADDR24
; break;
1881 case BFD_RELOC_PPC64_ADDR16_DS
:
1882 case BFD_RELOC_16
: r
= R_PPC_ADDR16
; break;
1883 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
1884 case BFD_RELOC_LO16
: r
= R_PPC_ADDR16_LO
; break;
1885 case BFD_RELOC_HI16
: r
= R_PPC_ADDR16_HI
; break;
1886 case BFD_RELOC_HI16_S
: r
= R_PPC_ADDR16_HA
; break;
1887 case BFD_RELOC_PPC_BA16
: r
= R_PPC_ADDR14
; break;
1888 case BFD_RELOC_PPC_BA16_BRTAKEN
: r
= R_PPC_ADDR14_BRTAKEN
; break;
1889 case BFD_RELOC_PPC_BA16_BRNTAKEN
: r
= R_PPC_ADDR14_BRNTAKEN
; break;
1890 case BFD_RELOC_PPC_B26
: r
= R_PPC_REL24
; break;
1891 case BFD_RELOC_PPC_B16
: r
= R_PPC_REL14
; break;
1892 case BFD_RELOC_PPC_B16_BRTAKEN
: r
= R_PPC_REL14_BRTAKEN
; break;
1893 case BFD_RELOC_PPC_B16_BRNTAKEN
: r
= R_PPC_REL14_BRNTAKEN
; break;
1894 case BFD_RELOC_PPC64_GOT16_DS
:
1895 case BFD_RELOC_16_GOTOFF
: r
= R_PPC_GOT16
; break;
1896 case BFD_RELOC_PPC64_GOT16_LO_DS
:
1897 case BFD_RELOC_LO16_GOTOFF
: r
= R_PPC_GOT16_LO
; break;
1898 case BFD_RELOC_HI16_GOTOFF
: r
= R_PPC_GOT16_HI
; break;
1899 case BFD_RELOC_HI16_S_GOTOFF
: r
= R_PPC_GOT16_HA
; break;
1900 case BFD_RELOC_24_PLT_PCREL
: r
= R_PPC_PLTREL24
; break;
1901 case BFD_RELOC_PPC_COPY
: r
= R_PPC_COPY
; break;
1902 case BFD_RELOC_PPC_GLOB_DAT
: r
= R_PPC_GLOB_DAT
; break;
1903 case BFD_RELOC_PPC_LOCAL24PC
: r
= R_PPC_LOCAL24PC
; break;
1904 case BFD_RELOC_32_PCREL
: r
= R_PPC_REL32
; break;
1905 case BFD_RELOC_32_PLTOFF
: r
= R_PPC_PLT32
; break;
1906 case BFD_RELOC_32_PLT_PCREL
: r
= R_PPC_PLTREL32
; break;
1907 case BFD_RELOC_PPC64_PLT16_LO_DS
:
1908 case BFD_RELOC_LO16_PLTOFF
: r
= R_PPC_PLT16_LO
; break;
1909 case BFD_RELOC_HI16_PLTOFF
: r
= R_PPC_PLT16_HI
; break;
1910 case BFD_RELOC_HI16_S_PLTOFF
: r
= R_PPC_PLT16_HA
; break;
1911 case BFD_RELOC_GPREL16
: r
= R_PPC_SDAREL16
; break;
1912 case BFD_RELOC_PPC64_SECTOFF_DS
:
1913 case BFD_RELOC_16_BASEREL
: r
= R_PPC_SECTOFF
; break;
1914 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
1915 case BFD_RELOC_LO16_BASEREL
: r
= R_PPC_SECTOFF_LO
; break;
1916 case BFD_RELOC_HI16_BASEREL
: r
= R_PPC_SECTOFF_HI
; break;
1917 case BFD_RELOC_HI16_S_BASEREL
: r
= R_PPC_SECTOFF_HA
; break;
1918 case BFD_RELOC_CTOR
: r
= R_PPC_ADDR32
; break;
1919 case BFD_RELOC_PPC64_TOC16_DS
:
1920 case BFD_RELOC_PPC_TOC16
: r
= R_PPC_TOC16
; break;
1921 case BFD_RELOC_PPC_TLS
: r
= R_PPC_TLS
; break;
1922 case BFD_RELOC_PPC_TLSGD
: r
= R_PPC_TLSGD
; break;
1923 case BFD_RELOC_PPC_TLSLD
: r
= R_PPC_TLSLD
; break;
1924 case BFD_RELOC_PPC_DTPMOD
: r
= R_PPC_DTPMOD32
; break;
1925 case BFD_RELOC_PPC64_TPREL16_DS
:
1926 case BFD_RELOC_PPC_TPREL16
: r
= R_PPC_TPREL16
; break;
1927 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
1928 case BFD_RELOC_PPC_TPREL16_LO
: r
= R_PPC_TPREL16_LO
; break;
1929 case BFD_RELOC_PPC_TPREL16_HI
: r
= R_PPC_TPREL16_HI
; break;
1930 case BFD_RELOC_PPC_TPREL16_HA
: r
= R_PPC_TPREL16_HA
; break;
1931 case BFD_RELOC_PPC_TPREL
: r
= R_PPC_TPREL32
; break;
1932 case BFD_RELOC_PPC64_DTPREL16_DS
:
1933 case BFD_RELOC_PPC_DTPREL16
: r
= R_PPC_DTPREL16
; break;
1934 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
1935 case BFD_RELOC_PPC_DTPREL16_LO
: r
= R_PPC_DTPREL16_LO
; break;
1936 case BFD_RELOC_PPC_DTPREL16_HI
: r
= R_PPC_DTPREL16_HI
; break;
1937 case BFD_RELOC_PPC_DTPREL16_HA
: r
= R_PPC_DTPREL16_HA
; break;
1938 case BFD_RELOC_PPC_DTPREL
: r
= R_PPC_DTPREL32
; break;
1939 case BFD_RELOC_PPC_GOT_TLSGD16
: r
= R_PPC_GOT_TLSGD16
; break;
1940 case BFD_RELOC_PPC_GOT_TLSGD16_LO
: r
= R_PPC_GOT_TLSGD16_LO
; break;
1941 case BFD_RELOC_PPC_GOT_TLSGD16_HI
: r
= R_PPC_GOT_TLSGD16_HI
; break;
1942 case BFD_RELOC_PPC_GOT_TLSGD16_HA
: r
= R_PPC_GOT_TLSGD16_HA
; break;
1943 case BFD_RELOC_PPC_GOT_TLSLD16
: r
= R_PPC_GOT_TLSLD16
; break;
1944 case BFD_RELOC_PPC_GOT_TLSLD16_LO
: r
= R_PPC_GOT_TLSLD16_LO
; break;
1945 case BFD_RELOC_PPC_GOT_TLSLD16_HI
: r
= R_PPC_GOT_TLSLD16_HI
; break;
1946 case BFD_RELOC_PPC_GOT_TLSLD16_HA
: r
= R_PPC_GOT_TLSLD16_HA
; break;
1947 case BFD_RELOC_PPC_GOT_TPREL16
: r
= R_PPC_GOT_TPREL16
; break;
1948 case BFD_RELOC_PPC_GOT_TPREL16_LO
: r
= R_PPC_GOT_TPREL16_LO
; break;
1949 case BFD_RELOC_PPC_GOT_TPREL16_HI
: r
= R_PPC_GOT_TPREL16_HI
; break;
1950 case BFD_RELOC_PPC_GOT_TPREL16_HA
: r
= R_PPC_GOT_TPREL16_HA
; break;
1951 case BFD_RELOC_PPC_GOT_DTPREL16
: r
= R_PPC_GOT_DTPREL16
; break;
1952 case BFD_RELOC_PPC_GOT_DTPREL16_LO
: r
= R_PPC_GOT_DTPREL16_LO
; break;
1953 case BFD_RELOC_PPC_GOT_DTPREL16_HI
: r
= R_PPC_GOT_DTPREL16_HI
; break;
1954 case BFD_RELOC_PPC_GOT_DTPREL16_HA
: r
= R_PPC_GOT_DTPREL16_HA
; break;
1955 case BFD_RELOC_PPC_EMB_NADDR32
: r
= R_PPC_EMB_NADDR32
; break;
1956 case BFD_RELOC_PPC_EMB_NADDR16
: r
= R_PPC_EMB_NADDR16
; break;
1957 case BFD_RELOC_PPC_EMB_NADDR16_LO
: r
= R_PPC_EMB_NADDR16_LO
; break;
1958 case BFD_RELOC_PPC_EMB_NADDR16_HI
: r
= R_PPC_EMB_NADDR16_HI
; break;
1959 case BFD_RELOC_PPC_EMB_NADDR16_HA
: r
= R_PPC_EMB_NADDR16_HA
; break;
1960 case BFD_RELOC_PPC_EMB_SDAI16
: r
= R_PPC_EMB_SDAI16
; break;
1961 case BFD_RELOC_PPC_EMB_SDA2I16
: r
= R_PPC_EMB_SDA2I16
; break;
1962 case BFD_RELOC_PPC_EMB_SDA2REL
: r
= R_PPC_EMB_SDA2REL
; break;
1963 case BFD_RELOC_PPC_EMB_SDA21
: r
= R_PPC_EMB_SDA21
; break;
1964 case BFD_RELOC_PPC_EMB_MRKREF
: r
= R_PPC_EMB_MRKREF
; break;
1965 case BFD_RELOC_PPC_EMB_RELSEC16
: r
= R_PPC_EMB_RELSEC16
; break;
1966 case BFD_RELOC_PPC_EMB_RELST_LO
: r
= R_PPC_EMB_RELST_LO
; break;
1967 case BFD_RELOC_PPC_EMB_RELST_HI
: r
= R_PPC_EMB_RELST_HI
; break;
1968 case BFD_RELOC_PPC_EMB_RELST_HA
: r
= R_PPC_EMB_RELST_HA
; break;
1969 case BFD_RELOC_PPC_EMB_BIT_FLD
: r
= R_PPC_EMB_BIT_FLD
; break;
1970 case BFD_RELOC_PPC_EMB_RELSDA
: r
= R_PPC_EMB_RELSDA
; break;
1971 case BFD_RELOC_PPC_VLE_REL8
: r
= R_PPC_VLE_REL8
; break;
1972 case BFD_RELOC_PPC_VLE_REL15
: r
= R_PPC_VLE_REL15
; break;
1973 case BFD_RELOC_PPC_VLE_REL24
: r
= R_PPC_VLE_REL24
; break;
1974 case BFD_RELOC_PPC_VLE_LO16A
: r
= R_PPC_VLE_LO16A
; break;
1975 case BFD_RELOC_PPC_VLE_LO16D
: r
= R_PPC_VLE_LO16D
; break;
1976 case BFD_RELOC_PPC_VLE_HI16A
: r
= R_PPC_VLE_HI16A
; break;
1977 case BFD_RELOC_PPC_VLE_HI16D
: r
= R_PPC_VLE_HI16D
; break;
1978 case BFD_RELOC_PPC_VLE_HA16A
: r
= R_PPC_VLE_HA16A
; break;
1979 case BFD_RELOC_PPC_VLE_HA16D
: r
= R_PPC_VLE_HA16D
; break;
1980 case BFD_RELOC_PPC_VLE_SDA21
: r
= R_PPC_VLE_SDA21
; break;
1981 case BFD_RELOC_PPC_VLE_SDA21_LO
: r
= R_PPC_VLE_SDA21_LO
; break;
1982 case BFD_RELOC_PPC_VLE_SDAREL_LO16A
:
1983 r
= R_PPC_VLE_SDAREL_LO16A
;
1985 case BFD_RELOC_PPC_VLE_SDAREL_LO16D
:
1986 r
= R_PPC_VLE_SDAREL_LO16D
;
1988 case BFD_RELOC_PPC_VLE_SDAREL_HI16A
:
1989 r
= R_PPC_VLE_SDAREL_HI16A
;
1991 case BFD_RELOC_PPC_VLE_SDAREL_HI16D
:
1992 r
= R_PPC_VLE_SDAREL_HI16D
;
1994 case BFD_RELOC_PPC_VLE_SDAREL_HA16A
:
1995 r
= R_PPC_VLE_SDAREL_HA16A
;
1997 case BFD_RELOC_PPC_VLE_SDAREL_HA16D
:
1998 r
= R_PPC_VLE_SDAREL_HA16D
;
2000 case BFD_RELOC_16_PCREL
: r
= R_PPC_REL16
; break;
2001 case BFD_RELOC_LO16_PCREL
: r
= R_PPC_REL16_LO
; break;
2002 case BFD_RELOC_HI16_PCREL
: r
= R_PPC_REL16_HI
; break;
2003 case BFD_RELOC_HI16_S_PCREL
: r
= R_PPC_REL16_HA
; break;
2004 case BFD_RELOC_PPC_REL16DX_HA
: r
= R_PPC_REL16DX_HA
; break;
2005 case BFD_RELOC_VTABLE_INHERIT
: r
= R_PPC_GNU_VTINHERIT
; break;
2006 case BFD_RELOC_VTABLE_ENTRY
: r
= R_PPC_GNU_VTENTRY
; break;
2009 return ppc_elf_howto_table
[r
];
2012 static reloc_howto_type
*
2013 ppc_elf_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
2019 i
< sizeof (ppc_elf_howto_raw
) / sizeof (ppc_elf_howto_raw
[0]);
2021 if (ppc_elf_howto_raw
[i
].name
!= NULL
2022 && strcasecmp (ppc_elf_howto_raw
[i
].name
, r_name
) == 0)
2023 return &ppc_elf_howto_raw
[i
];
2028 /* Set the howto pointer for a PowerPC ELF reloc. */
2031 ppc_elf_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
2033 Elf_Internal_Rela
*dst
)
2035 unsigned int r_type
;
2037 /* Initialize howto table if not already done. */
2038 if (!ppc_elf_howto_table
[R_PPC_ADDR32
])
2039 ppc_elf_howto_init ();
2041 r_type
= ELF32_R_TYPE (dst
->r_info
);
2042 if (r_type
>= R_PPC_max
)
2044 (*_bfd_error_handler
) (_("%B: unrecognised PPC reloc number: %d"),
2046 bfd_set_error (bfd_error_bad_value
);
2047 r_type
= R_PPC_NONE
;
2049 cache_ptr
->howto
= ppc_elf_howto_table
[r_type
];
2051 /* Just because the above assert didn't trigger doesn't mean that
2052 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
2053 if (!cache_ptr
->howto
)
2055 (*_bfd_error_handler
) (_("%B: invalid relocation type %d"),
2057 bfd_set_error (bfd_error_bad_value
);
2059 cache_ptr
->howto
= ppc_elf_howto_table
[R_PPC_NONE
];
2063 /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
2065 static bfd_reloc_status_type
2066 ppc_elf_addr16_ha_reloc (bfd
*abfd ATTRIBUTE_UNUSED
,
2067 arelent
*reloc_entry
,
2069 void *data ATTRIBUTE_UNUSED
,
2070 asection
*input_section
,
2072 char **error_message ATTRIBUTE_UNUSED
)
2074 enum elf_ppc_reloc_type r_type
;
2076 bfd_size_type octets
;
2079 if (output_bfd
!= NULL
)
2081 reloc_entry
->address
+= input_section
->output_offset
;
2082 return bfd_reloc_ok
;
2085 reloc_entry
->addend
+= 0x8000;
2086 r_type
= reloc_entry
->howto
->type
;
2087 if (r_type
!= R_PPC_REL16DX_HA
)
2088 return bfd_reloc_continue
;
2091 if (!bfd_is_com_section (symbol
->section
))
2092 value
= symbol
->value
;
2093 value
+= (reloc_entry
->addend
2094 + symbol
->section
->output_offset
2095 + symbol
->section
->output_section
->vma
);
2096 value
-= (reloc_entry
->address
2097 + input_section
->output_offset
2098 + input_section
->output_section
->vma
);
2101 octets
= reloc_entry
->address
* bfd_octets_per_byte (abfd
);
2102 insn
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ octets
);
2104 insn
|= (value
& 0xffc1) | ((value
& 0x3e) << 15);
2105 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ octets
);
2106 return bfd_reloc_ok
;
2109 static bfd_reloc_status_type
2110 ppc_elf_unhandled_reloc (bfd
*abfd
,
2111 arelent
*reloc_entry
,
2114 asection
*input_section
,
2116 char **error_message
)
2118 /* If this is a relocatable link (output_bfd test tells us), just
2119 call the generic function. Any adjustment will be done at final
2121 if (output_bfd
!= NULL
)
2122 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2123 input_section
, output_bfd
, error_message
);
2125 if (error_message
!= NULL
)
2127 static char buf
[60];
2128 sprintf (buf
, _("generic linker can't handle %s"),
2129 reloc_entry
->howto
->name
);
2130 *error_message
= buf
;
2132 return bfd_reloc_dangerous
;
2135 /* Sections created by the linker. */
2137 typedef struct elf_linker_section
2139 /* Pointer to the bfd section. */
2143 /* Associated bss section name. */
2144 const char *bss_name
;
2145 /* Associated symbol name. */
2146 const char *sym_name
;
2147 /* Associated symbol. */
2148 struct elf_link_hash_entry
*sym
;
2149 } elf_linker_section_t
;
2151 /* Linked list of allocated pointer entries. This hangs off of the
2152 symbol lists, and provides allows us to return different pointers,
2153 based on different addend's. */
2155 typedef struct elf_linker_section_pointers
2157 /* next allocated pointer for this symbol */
2158 struct elf_linker_section_pointers
*next
;
2159 /* offset of pointer from beginning of section */
2163 /* which linker section this is */
2164 elf_linker_section_t
*lsect
;
2165 } elf_linker_section_pointers_t
;
2167 struct ppc_elf_obj_tdata
2169 struct elf_obj_tdata elf
;
2171 /* A mapping from local symbols to offsets into the various linker
2172 sections added. This is index by the symbol index. */
2173 elf_linker_section_pointers_t
**linker_section_pointers
;
2175 /* Flags used to auto-detect plt type. */
2176 unsigned int makes_plt_call
: 1;
2177 unsigned int has_rel16
: 1;
2180 #define ppc_elf_tdata(bfd) \
2181 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
2183 #define elf_local_ptr_offsets(bfd) \
2184 (ppc_elf_tdata (bfd)->linker_section_pointers)
2186 #define is_ppc_elf(bfd) \
2187 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2188 && elf_object_id (bfd) == PPC32_ELF_DATA)
2190 /* Override the generic function because we store some extras. */
2193 ppc_elf_mkobject (bfd
*abfd
)
2195 return bfd_elf_allocate_object (abfd
, sizeof (struct ppc_elf_obj_tdata
),
2199 /* Fix bad default arch selected for a 32 bit input bfd when the
2200 default is 64 bit. */
2203 ppc_elf_object_p (bfd
*abfd
)
2205 if (abfd
->arch_info
->the_default
&& abfd
->arch_info
->bits_per_word
== 64)
2207 Elf_Internal_Ehdr
*i_ehdr
= elf_elfheader (abfd
);
2209 if (i_ehdr
->e_ident
[EI_CLASS
] == ELFCLASS32
)
2211 /* Relies on arch after 64 bit default being 32 bit default. */
2212 abfd
->arch_info
= abfd
->arch_info
->next
;
2213 BFD_ASSERT (abfd
->arch_info
->bits_per_word
== 32);
2219 /* Function to set whether a module needs the -mrelocatable bit set. */
2222 ppc_elf_set_private_flags (bfd
*abfd
, flagword flags
)
2224 BFD_ASSERT (!elf_flags_init (abfd
)
2225 || elf_elfheader (abfd
)->e_flags
== flags
);
2227 elf_elfheader (abfd
)->e_flags
= flags
;
2228 elf_flags_init (abfd
) = TRUE
;
2232 /* Support for core dump NOTE sections. */
2235 ppc_elf_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
2240 switch (note
->descsz
)
2245 case 268: /* Linux/PPC. */
2247 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
2250 elf_tdata (abfd
)->core
->lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
2259 /* Make a ".reg/999" section. */
2260 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
2261 size
, note
->descpos
+ offset
);
2265 ppc_elf_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
2267 switch (note
->descsz
)
2272 case 128: /* Linux/PPC elf_prpsinfo. */
2273 elf_tdata (abfd
)->core
->pid
2274 = bfd_get_32 (abfd
, note
->descdata
+ 16);
2275 elf_tdata (abfd
)->core
->program
2276 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 32, 16);
2277 elf_tdata (abfd
)->core
->command
2278 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 48, 80);
2281 /* Note that for some reason, a spurious space is tacked
2282 onto the end of the args in some (at least one anyway)
2283 implementations, so strip it off if it exists. */
2286 char *command
= elf_tdata (abfd
)->core
->command
;
2287 int n
= strlen (command
);
2289 if (0 < n
&& command
[n
- 1] == ' ')
2290 command
[n
- 1] = '\0';
2297 elfcore_write_ppc_linux_prpsinfo32
2301 const struct elf_internal_linux_prpsinfo
*prpsinfo
)
2303 struct elf_external_ppc_linux_prpsinfo32 data
;
2305 swap_ppc_linux_prpsinfo32_out (abfd
, prpsinfo
, &data
);
2306 return elfcore_write_note (abfd
, buf
, bufsiz
,
2307 "CORE", NT_PRPSINFO
, &data
, sizeof (data
));
2311 ppc_elf_write_core_note (bfd
*abfd
, char *buf
, int *bufsiz
, int note_type
, ...)
2323 va_start (ap
, note_type
);
2324 memset (data
, 0, sizeof (data
));
2325 strncpy (data
+ 32, va_arg (ap
, const char *), 16);
2326 strncpy (data
+ 48, va_arg (ap
, const char *), 80);
2328 return elfcore_write_note (abfd
, buf
, bufsiz
,
2329 "CORE", note_type
, data
, sizeof (data
));
2340 va_start (ap
, note_type
);
2341 memset (data
, 0, 72);
2342 pid
= va_arg (ap
, long);
2343 bfd_put_32 (abfd
, pid
, data
+ 24);
2344 cursig
= va_arg (ap
, int);
2345 bfd_put_16 (abfd
, cursig
, data
+ 12);
2346 greg
= va_arg (ap
, const void *);
2347 memcpy (data
+ 72, greg
, 192);
2348 memset (data
+ 264, 0, 4);
2350 return elfcore_write_note (abfd
, buf
, bufsiz
,
2351 "CORE", note_type
, data
, sizeof (data
));
2357 ppc_elf_lookup_section_flags (char *flag_name
)
2360 if (!strcmp (flag_name
, "SHF_PPC_VLE"))
2366 /* Add the VLE flag if required. */
2369 ppc_elf_section_processing (bfd
*abfd
, Elf_Internal_Shdr
*shdr
)
2371 if (bfd_get_mach (abfd
) == bfd_mach_ppc_vle
2372 && (shdr
->sh_flags
& SHF_EXECINSTR
) != 0)
2373 shdr
->sh_flags
|= SHF_PPC_VLE
;
2378 /* Return address for Ith PLT stub in section PLT, for relocation REL
2379 or (bfd_vma) -1 if it should not be included. */
2382 ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED
,
2383 const asection
*plt ATTRIBUTE_UNUSED
,
2386 return rel
->address
;
2389 /* Handle a PowerPC specific section when reading an object file. This
2390 is called when bfd_section_from_shdr finds a section with an unknown
2394 ppc_elf_section_from_shdr (bfd
*abfd
,
2395 Elf_Internal_Shdr
*hdr
,
2402 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
, shindex
))
2405 newsect
= hdr
->bfd_section
;
2406 flags
= bfd_get_section_flags (abfd
, newsect
);
2407 if (hdr
->sh_flags
& SHF_EXCLUDE
)
2408 flags
|= SEC_EXCLUDE
;
2410 if (hdr
->sh_type
== SHT_ORDERED
)
2411 flags
|= SEC_SORT_ENTRIES
;
2413 bfd_set_section_flags (abfd
, newsect
, flags
);
2417 /* Set up any other section flags and such that may be necessary. */
2420 ppc_elf_fake_sections (bfd
*abfd ATTRIBUTE_UNUSED
,
2421 Elf_Internal_Shdr
*shdr
,
2424 if ((asect
->flags
& SEC_SORT_ENTRIES
) != 0)
2425 shdr
->sh_type
= SHT_ORDERED
;
2430 /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2431 need to bump up the number of section headers. */
2434 ppc_elf_additional_program_headers (bfd
*abfd
,
2435 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
2440 s
= bfd_get_section_by_name (abfd
, ".sbss2");
2441 if (s
!= NULL
&& (s
->flags
& SEC_ALLOC
) != 0)
2444 s
= bfd_get_section_by_name (abfd
, ".PPC.EMB.sbss0");
2445 if (s
!= NULL
&& (s
->flags
& SEC_ALLOC
) != 0)
2451 /* Modify the segment map for VLE executables. */
2454 ppc_elf_modify_segment_map (bfd
*abfd
,
2455 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
2457 struct elf_segment_map
*m
, *n
;
2460 bfd_boolean sect0_vle
, sectj_vle
;
2462 /* At this point in the link, output sections have already been sorted by
2463 LMA and assigned to segments. All that is left to do is to ensure
2464 there is no mixing of VLE & non-VLE sections in a text segment.
2465 If we find that case, we split the segment.
2466 We maintain the original output section order. */
2468 for (m
= elf_seg_map (abfd
); m
!= NULL
; m
= m
->next
)
2473 sect0_vle
= (elf_section_flags (m
->sections
[0]) & SHF_PPC_VLE
) != 0;
2474 for (j
= 1; j
< m
->count
; ++j
)
2476 sectj_vle
= (elf_section_flags (m
->sections
[j
]) & SHF_PPC_VLE
) != 0;
2478 if (sectj_vle
!= sect0_vle
)
2484 /* sections 0..j-1 stay in this (current) segment,
2485 the remainder are put in a new segment.
2486 The scan resumes with the new segment. */
2488 /* Fix the new segment. */
2489 amt
= sizeof (struct elf_segment_map
);
2490 amt
+= (m
->count
- j
- 1) * sizeof (asection
*);
2491 n
= (struct elf_segment_map
*) bfd_zalloc (abfd
, amt
);
2495 n
->p_type
= PT_LOAD
;
2496 n
->p_flags
= PF_X
| PF_R
;
2498 n
->p_flags
|= PF_PPC_VLE
;
2499 n
->count
= m
->count
- j
;
2500 for (k
= 0; k
< n
->count
; ++k
)
2502 n
->sections
[k
] = m
->sections
[j
+k
];
2503 m
->sections
[j
+k
] = NULL
;
2508 /* Fix the current segment */
2515 /* Add extra PPC sections -- Note, for now, make .sbss2 and
2516 .PPC.EMB.sbss0 a normal section, and not a bss section so
2517 that the linker doesn't crater when trying to make more than
2520 static const struct bfd_elf_special_section ppc_elf_special_sections
[] =
2522 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS
, SHF_ALLOC
+ SHF_EXECINSTR
},
2523 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
2524 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS
, SHF_ALLOC
},
2525 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
2526 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS
, SHF_ALLOC
},
2527 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED
, SHF_ALLOC
},
2528 { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE
, 0 },
2529 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS
, SHF_ALLOC
},
2530 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS
, SHF_ALLOC
},
2531 { NULL
, 0, 0, 0, 0 }
2534 /* This is what we want for new plt/got. */
2535 static struct bfd_elf_special_section ppc_alt_plt
=
2536 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS
, SHF_ALLOC
};
2538 static const struct bfd_elf_special_section
*
2539 ppc_elf_get_sec_type_attr (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
2541 const struct bfd_elf_special_section
*ssect
;
2543 /* See if this is one of the special sections. */
2544 if (sec
->name
== NULL
)
2547 ssect
= _bfd_elf_get_special_section (sec
->name
, ppc_elf_special_sections
,
2551 if (ssect
== ppc_elf_special_sections
&& (sec
->flags
& SEC_LOAD
) != 0)
2552 ssect
= &ppc_alt_plt
;
2556 return _bfd_elf_get_sec_type_attr (abfd
, sec
);
2559 /* Very simple linked list structure for recording apuinfo values. */
2560 typedef struct apuinfo_list
2562 struct apuinfo_list
*next
;
2563 unsigned long value
;
2567 static apuinfo_list
*head
;
2568 static bfd_boolean apuinfo_set
;
2571 apuinfo_list_init (void)
2574 apuinfo_set
= FALSE
;
2578 apuinfo_list_add (unsigned long value
)
2580 apuinfo_list
*entry
= head
;
2582 while (entry
!= NULL
)
2584 if (entry
->value
== value
)
2586 entry
= entry
->next
;
2589 entry
= bfd_malloc (sizeof (* entry
));
2593 entry
->value
= value
;
2599 apuinfo_list_length (void)
2601 apuinfo_list
*entry
;
2602 unsigned long count
;
2604 for (entry
= head
, count
= 0;
2606 entry
= entry
->next
)
2612 static inline unsigned long
2613 apuinfo_list_element (unsigned long number
)
2615 apuinfo_list
* entry
;
2619 entry
= entry
->next
)
2622 return entry
? entry
->value
: 0;
2626 apuinfo_list_finish (void)
2628 apuinfo_list
*entry
;
2630 for (entry
= head
; entry
;)
2632 apuinfo_list
*next
= entry
->next
;
2640 #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2641 #define APUINFO_LABEL "APUinfo"
2643 /* Scan the input BFDs and create a linked list of
2644 the APUinfo values that will need to be emitted. */
2647 ppc_elf_begin_write_processing (bfd
*abfd
, struct bfd_link_info
*link_info
)
2651 char *buffer
= NULL
;
2652 bfd_size_type largest_input_size
= 0;
2654 unsigned long length
;
2655 const char *error_message
= NULL
;
2657 if (link_info
== NULL
)
2660 apuinfo_list_init ();
2662 /* Read in the input sections contents. */
2663 for (ibfd
= link_info
->input_bfds
; ibfd
; ibfd
= ibfd
->link
.next
)
2665 unsigned long datum
;
2667 asec
= bfd_get_section_by_name (ibfd
, APUINFO_SECTION_NAME
);
2671 error_message
= _("corrupt %s section in %B");
2672 length
= asec
->size
;
2677 if (largest_input_size
< asec
->size
)
2681 largest_input_size
= asec
->size
;
2682 buffer
= bfd_malloc (largest_input_size
);
2687 if (bfd_seek (ibfd
, asec
->filepos
, SEEK_SET
) != 0
2688 || (bfd_bread (buffer
, length
, ibfd
) != length
))
2690 error_message
= _("unable to read in %s section from %B");
2694 /* Verify the contents of the header. Note - we have to
2695 extract the values this way in order to allow for a
2696 host whose endian-ness is different from the target. */
2697 datum
= bfd_get_32 (ibfd
, buffer
);
2698 if (datum
!= sizeof APUINFO_LABEL
)
2701 datum
= bfd_get_32 (ibfd
, buffer
+ 8);
2705 if (strcmp (buffer
+ 12, APUINFO_LABEL
) != 0)
2708 /* Get the number of bytes used for apuinfo entries. */
2709 datum
= bfd_get_32 (ibfd
, buffer
+ 4);
2710 if (datum
+ 20 != length
)
2713 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2714 for (i
= 0; i
< datum
; i
+= 4)
2715 apuinfo_list_add (bfd_get_32 (ibfd
, buffer
+ 20 + i
));
2718 error_message
= NULL
;
2722 /* Compute the size of the output section. */
2723 unsigned num_entries
= apuinfo_list_length ();
2725 /* Set the output section size, if it exists. */
2726 asec
= bfd_get_section_by_name (abfd
, APUINFO_SECTION_NAME
);
2728 if (asec
&& ! bfd_set_section_size (abfd
, asec
, 20 + num_entries
* 4))
2731 error_message
= _("warning: unable to set size of %s section in %B");
2740 (*_bfd_error_handler
) (error_message
, ibfd
, APUINFO_SECTION_NAME
);
2743 /* Prevent the output section from accumulating the input sections'
2744 contents. We have already stored this in our linked list structure. */
2747 ppc_elf_write_section (bfd
*abfd ATTRIBUTE_UNUSED
,
2748 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
2750 bfd_byte
*contents ATTRIBUTE_UNUSED
)
2752 return apuinfo_set
&& strcmp (asec
->name
, APUINFO_SECTION_NAME
) == 0;
2755 /* Finally we can generate the output section. */
2758 ppc_elf_final_write_processing (bfd
*abfd
, bfd_boolean linker ATTRIBUTE_UNUSED
)
2763 unsigned num_entries
;
2764 bfd_size_type length
;
2766 asec
= bfd_get_section_by_name (abfd
, APUINFO_SECTION_NAME
);
2773 length
= asec
->size
;
2777 buffer
= bfd_malloc (length
);
2780 (*_bfd_error_handler
)
2781 (_("failed to allocate space for new APUinfo section."));
2785 /* Create the apuinfo header. */
2786 num_entries
= apuinfo_list_length ();
2787 bfd_put_32 (abfd
, sizeof APUINFO_LABEL
, buffer
);
2788 bfd_put_32 (abfd
, num_entries
* 4, buffer
+ 4);
2789 bfd_put_32 (abfd
, 0x2, buffer
+ 8);
2790 strcpy ((char *) buffer
+ 12, APUINFO_LABEL
);
2793 for (i
= 0; i
< num_entries
; i
++)
2795 bfd_put_32 (abfd
, apuinfo_list_element (i
), buffer
+ length
);
2799 if (length
!= asec
->size
)
2800 (*_bfd_error_handler
) (_("failed to compute new APUinfo section."));
2802 if (! bfd_set_section_contents (abfd
, asec
, buffer
, (file_ptr
) 0, length
))
2803 (*_bfd_error_handler
) (_("failed to install new APUinfo section."));
2807 apuinfo_list_finish ();
2811 is_nonpic_glink_stub (bfd
*abfd
, asection
*glink
, bfd_vma off
)
2813 bfd_byte buf
[GLINK_ENTRY_SIZE
];
2815 if (!bfd_get_section_contents (abfd
, glink
, buf
, off
, GLINK_ENTRY_SIZE
))
2818 return ((bfd_get_32 (abfd
, buf
+ 0) & 0xffff0000) == LIS_11
2819 && (bfd_get_32 (abfd
, buf
+ 4) & 0xffff0000) == LWZ_11_11
2820 && bfd_get_32 (abfd
, buf
+ 8) == MTCTR_11
2821 && bfd_get_32 (abfd
, buf
+ 12) == BCTR
);
2825 section_covers_vma (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*section
, void *ptr
)
2827 bfd_vma vma
= *(bfd_vma
*) ptr
;
2828 return ((section
->flags
& SEC_ALLOC
) != 0
2829 && section
->vma
<= vma
2830 && vma
< section
->vma
+ section
->size
);
2834 ppc_elf_get_synthetic_symtab (bfd
*abfd
, long symcount
, asymbol
**syms
,
2835 long dynsymcount
, asymbol
**dynsyms
,
2838 bfd_boolean (*slurp_relocs
) (bfd
*, asection
*, asymbol
**, bfd_boolean
);
2839 asection
*plt
, *relplt
, *dynamic
, *glink
;
2840 bfd_vma glink_vma
= 0;
2841 bfd_vma resolv_vma
= 0;
2852 if ((abfd
->flags
& (DYNAMIC
| EXEC_P
)) == 0)
2855 if (dynsymcount
<= 0)
2858 relplt
= bfd_get_section_by_name (abfd
, ".rela.plt");
2862 plt
= bfd_get_section_by_name (abfd
, ".plt");
2866 /* Call common code to handle old-style executable PLTs. */
2867 if (elf_section_flags (plt
) & SHF_EXECINSTR
)
2868 return _bfd_elf_get_synthetic_symtab (abfd
, symcount
, syms
,
2869 dynsymcount
, dynsyms
, ret
);
2871 /* If this object was prelinked, the prelinker stored the address
2872 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2873 dynamic
= bfd_get_section_by_name (abfd
, ".dynamic");
2874 if (dynamic
!= NULL
)
2876 bfd_byte
*dynbuf
, *extdyn
, *extdynend
;
2878 void (*swap_dyn_in
) (bfd
*, const void *, Elf_Internal_Dyn
*);
2880 if (!bfd_malloc_and_get_section (abfd
, dynamic
, &dynbuf
))
2883 extdynsize
= get_elf_backend_data (abfd
)->s
->sizeof_dyn
;
2884 swap_dyn_in
= get_elf_backend_data (abfd
)->s
->swap_dyn_in
;
2887 extdynend
= extdyn
+ dynamic
->size
;
2888 for (; extdyn
< extdynend
; extdyn
+= extdynsize
)
2890 Elf_Internal_Dyn dyn
;
2891 (*swap_dyn_in
) (abfd
, extdyn
, &dyn
);
2893 if (dyn
.d_tag
== DT_NULL
)
2896 if (dyn
.d_tag
== DT_PPC_GOT
)
2898 unsigned int g_o_t
= dyn
.d_un
.d_val
;
2899 asection
*got
= bfd_get_section_by_name (abfd
, ".got");
2901 && bfd_get_section_contents (abfd
, got
, buf
,
2902 g_o_t
- got
->vma
+ 4, 4))
2903 glink_vma
= bfd_get_32 (abfd
, buf
);
2910 /* Otherwise we read the first plt entry. */
2913 if (bfd_get_section_contents (abfd
, plt
, buf
, 0, 4))
2914 glink_vma
= bfd_get_32 (abfd
, buf
);
2920 /* The .glink section usually does not survive the final
2921 link; search for the section (usually .text) where the
2922 glink stubs now reside. */
2923 glink
= bfd_sections_find_if (abfd
, section_covers_vma
, &glink_vma
);
2927 /* Determine glink PLT resolver by reading the relative branch
2928 from the first glink stub. */
2929 if (bfd_get_section_contents (abfd
, glink
, buf
,
2930 glink_vma
- glink
->vma
, 4))
2932 unsigned int insn
= bfd_get_32 (abfd
, buf
);
2934 /* The first glink stub may either branch to the resolver ... */
2936 if ((insn
& ~0x3fffffc) == 0)
2937 resolv_vma
= glink_vma
+ (insn
^ 0x2000000) - 0x2000000;
2939 /* ... or fall through a bunch of NOPs. */
2940 else if ((insn
^ B
^ NOP
) == 0)
2942 bfd_get_section_contents (abfd
, glink
, buf
,
2943 glink_vma
- glink
->vma
+ i
, 4);
2945 if (bfd_get_32 (abfd
, buf
) != NOP
)
2947 resolv_vma
= glink_vma
+ i
;
2952 count
= relplt
->size
/ sizeof (Elf32_External_Rela
);
2953 /* If the stubs are those for -shared/-pie then we might have
2954 multiple stubs for each plt entry. If that is the case then
2955 there is no way to associate stubs with their plt entries short
2956 of figuring out the GOT pointer value used in the stub. */
2957 if (!is_nonpic_glink_stub (abfd
, glink
,
2958 glink_vma
- GLINK_ENTRY_SIZE
- glink
->vma
))
2961 slurp_relocs
= get_elf_backend_data (abfd
)->s
->slurp_reloc_table
;
2962 if (! (*slurp_relocs
) (abfd
, relplt
, dynsyms
, TRUE
))
2965 size
= count
* sizeof (asymbol
);
2966 p
= relplt
->relocation
;
2967 for (i
= 0; i
< count
; i
++, p
++)
2969 size
+= strlen ((*p
->sym_ptr_ptr
)->name
) + sizeof ("@plt");
2971 size
+= sizeof ("+0x") - 1 + 8;
2974 size
+= sizeof (asymbol
) + sizeof ("__glink");
2977 size
+= sizeof (asymbol
) + sizeof ("__glink_PLTresolve");
2979 s
= *ret
= bfd_malloc (size
);
2983 stub_vma
= glink_vma
;
2984 names
= (char *) (s
+ count
+ 1 + (resolv_vma
!= 0));
2985 p
= relplt
->relocation
+ count
- 1;
2986 for (i
= 0; i
< count
; i
++)
2990 *s
= **p
->sym_ptr_ptr
;
2991 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
2992 we are defining a symbol, ensure one of them is set. */
2993 if ((s
->flags
& BSF_LOCAL
) == 0)
2994 s
->flags
|= BSF_GLOBAL
;
2995 s
->flags
|= BSF_SYNTHETIC
;
2998 if (strcmp ((*p
->sym_ptr_ptr
)->name
, "__tls_get_addr_opt") == 0)
3000 s
->value
= stub_vma
- glink
->vma
;
3003 len
= strlen ((*p
->sym_ptr_ptr
)->name
);
3004 memcpy (names
, (*p
->sym_ptr_ptr
)->name
, len
);
3008 memcpy (names
, "+0x", sizeof ("+0x") - 1);
3009 names
+= sizeof ("+0x") - 1;
3010 bfd_sprintf_vma (abfd
, names
, p
->addend
);
3011 names
+= strlen (names
);
3013 memcpy (names
, "@plt", sizeof ("@plt"));
3014 names
+= sizeof ("@plt");
3019 /* Add a symbol at the start of the glink branch table. */
3020 memset (s
, 0, sizeof *s
);
3022 s
->flags
= BSF_GLOBAL
| BSF_SYNTHETIC
;
3024 s
->value
= glink_vma
- glink
->vma
;
3026 memcpy (names
, "__glink", sizeof ("__glink"));
3027 names
+= sizeof ("__glink");
3033 /* Add a symbol for the glink PLT resolver. */
3034 memset (s
, 0, sizeof *s
);
3036 s
->flags
= BSF_GLOBAL
| BSF_SYNTHETIC
;
3038 s
->value
= resolv_vma
- glink
->vma
;
3040 memcpy (names
, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3041 names
+= sizeof ("__glink_PLTresolve");
3049 /* The following functions are specific to the ELF linker, while
3050 functions above are used generally. They appear in this file more
3051 or less in the order in which they are called. eg.
3052 ppc_elf_check_relocs is called early in the link process,
3053 ppc_elf_finish_dynamic_sections is one of the last functions
3056 /* Track PLT entries needed for a given symbol. We might need more
3057 than one glink entry per symbol when generating a pic binary. */
3060 struct plt_entry
*next
;
3062 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3063 This field stores the offset into .got2 used to initialise the
3064 GOT pointer reg. It will always be at least 32768. (Current
3065 gcc always uses an offset of 32768, but ld -r will pack .got2
3066 sections together resulting in larger offsets). */
3069 /* The .got2 section. */
3072 /* PLT refcount or offset. */
3075 bfd_signed_vma refcount
;
3079 /* .glink stub offset. */
3080 bfd_vma glink_offset
;
3083 /* Of those relocs that might be copied as dynamic relocs, this function
3084 selects those that must be copied when linking a shared library,
3085 even when the symbol is local. */
3088 must_be_dyn_reloc (struct bfd_link_info
*info
,
3089 enum elf_ppc_reloc_type r_type
)
3098 case R_PPC_REL14_BRTAKEN
:
3099 case R_PPC_REL14_BRNTAKEN
:
3105 case R_PPC_TPREL16_LO
:
3106 case R_PPC_TPREL16_HI
:
3107 case R_PPC_TPREL16_HA
:
3108 return !bfd_link_executable (info
);
3112 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3113 copying dynamic variables from a shared lib into an app's dynbss
3114 section, and instead use a dynamic relocation to point into the
3116 #define ELIMINATE_COPY_RELOCS 1
3118 /* Used to track dynamic relocations for local symbols. */
3119 struct ppc_dyn_relocs
3121 struct ppc_dyn_relocs
*next
;
3123 /* The input section of the reloc. */
3126 /* Total number of relocs copied for the input section. */
3127 unsigned int count
: 31;
3129 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3130 unsigned int ifunc
: 1;
3133 /* PPC ELF linker hash entry. */
3135 struct ppc_elf_link_hash_entry
3137 struct elf_link_hash_entry elf
;
3139 /* If this symbol is used in the linker created sections, the processor
3140 specific backend uses this field to map the field into the offset
3141 from the beginning of the section. */
3142 elf_linker_section_pointers_t
*linker_section_pointer
;
3144 /* Track dynamic relocs copied for this symbol. */
3145 struct elf_dyn_relocs
*dyn_relocs
;
3147 /* Contexts in which symbol is used in the GOT (or TOC).
3148 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3149 corresponding relocs are encountered during check_relocs.
3150 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3151 indicate the corresponding GOT entry type is not needed. */
3152 #define TLS_GD 1 /* GD reloc. */
3153 #define TLS_LD 2 /* LD reloc. */
3154 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
3155 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3156 #define TLS_TLS 16 /* Any TLS reloc. */
3157 #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
3158 #define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
3161 /* Nonzero if we have seen a small data relocation referring to this
3163 unsigned char has_sda_refs
: 1;
3165 /* Flag use of given relocations. */
3166 unsigned char has_addr16_ha
: 1;
3167 unsigned char has_addr16_lo
: 1;
3170 #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3172 /* PPC ELF linker hash table. */
3174 struct ppc_elf_link_hash_table
3176 struct elf_link_hash_table elf
;
3178 /* Various options passed from the linker. */
3179 struct ppc_elf_params
*params
;
3181 /* Short-cuts to get to dynamic linker sections. */
3193 elf_linker_section_t sdata
[2];
3195 asection
*glink_eh_frame
;
3197 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3200 /* The .got.plt section (VxWorks only)*/
3203 /* Shortcut to __tls_get_addr. */
3204 struct elf_link_hash_entry
*tls_get_addr
;
3206 /* The bfd that forced an old-style PLT. */
3209 /* TLS local dynamic got entry handling. */
3211 bfd_signed_vma refcount
;
3215 /* Offset of branch table to PltResolve function in glink. */
3216 bfd_vma glink_pltresolve
;
3218 /* Size of reserved GOT entries. */
3219 unsigned int got_header_size
;
3220 /* Non-zero if allocating the header left a gap. */
3221 unsigned int got_gap
;
3223 /* The type of PLT we have chosen to use. */
3224 enum ppc_elf_plt_type plt_type
;
3226 /* True if the target system is VxWorks. */
3227 unsigned int is_vxworks
:1;
3229 /* The size of PLT entries. */
3231 /* The distance between adjacent PLT slots. */
3233 /* The size of the first PLT entry. */
3234 int plt_initial_entry_size
;
3236 /* Small local sym cache. */
3237 struct sym_cache sym_cache
;
3240 /* Rename some of the generic section flags to better document how they
3241 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3243 /* Nonzero if this section has TLS related relocations. */
3244 #define has_tls_reloc sec_flg0
3246 /* Nonzero if this section has a call to __tls_get_addr. */
3247 #define has_tls_get_addr_call sec_flg1
3249 /* Get the PPC ELF linker hash table from a link_info structure. */
3251 #define ppc_elf_hash_table(p) \
3252 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3253 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
3255 /* Create an entry in a PPC ELF linker hash table. */
3257 static struct bfd_hash_entry
*
3258 ppc_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
3259 struct bfd_hash_table
*table
,
3262 /* Allocate the structure if it has not already been allocated by a
3266 entry
= bfd_hash_allocate (table
,
3267 sizeof (struct ppc_elf_link_hash_entry
));
3272 /* Call the allocation method of the superclass. */
3273 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
3276 ppc_elf_hash_entry (entry
)->linker_section_pointer
= NULL
;
3277 ppc_elf_hash_entry (entry
)->dyn_relocs
= NULL
;
3278 ppc_elf_hash_entry (entry
)->tls_mask
= 0;
3279 ppc_elf_hash_entry (entry
)->has_sda_refs
= 0;
3285 /* Create a PPC ELF linker hash table. */
3287 static struct bfd_link_hash_table
*
3288 ppc_elf_link_hash_table_create (bfd
*abfd
)
3290 struct ppc_elf_link_hash_table
*ret
;
3291 static struct ppc_elf_params default_params
= { PLT_OLD
, 0, 1, 0, 0, 12, 0 };
3293 ret
= bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table
));
3297 if (!_bfd_elf_link_hash_table_init (&ret
->elf
, abfd
,
3298 ppc_elf_link_hash_newfunc
,
3299 sizeof (struct ppc_elf_link_hash_entry
),
3306 ret
->elf
.init_plt_refcount
.refcount
= 0;
3307 ret
->elf
.init_plt_refcount
.glist
= NULL
;
3308 ret
->elf
.init_plt_offset
.offset
= 0;
3309 ret
->elf
.init_plt_offset
.glist
= NULL
;
3311 ret
->params
= &default_params
;
3313 ret
->sdata
[0].name
= ".sdata";
3314 ret
->sdata
[0].sym_name
= "_SDA_BASE_";
3315 ret
->sdata
[0].bss_name
= ".sbss";
3317 ret
->sdata
[1].name
= ".sdata2";
3318 ret
->sdata
[1].sym_name
= "_SDA2_BASE_";
3319 ret
->sdata
[1].bss_name
= ".sbss2";
3321 ret
->plt_entry_size
= 12;
3322 ret
->plt_slot_size
= 8;
3323 ret
->plt_initial_entry_size
= 72;
3325 return &ret
->elf
.root
;
3328 /* Hook linker params into hash table. */
3331 ppc_elf_link_params (struct bfd_link_info
*info
, struct ppc_elf_params
*params
)
3333 struct ppc_elf_link_hash_table
*htab
= ppc_elf_hash_table (info
);
3336 htab
->params
= params
;
3339 /* Create .got and the related sections. */
3342 ppc_elf_create_got (bfd
*abfd
, struct bfd_link_info
*info
)
3344 struct ppc_elf_link_hash_table
*htab
;
3348 if (!_bfd_elf_create_got_section (abfd
, info
))
3351 htab
= ppc_elf_hash_table (info
);
3352 htab
->got
= s
= bfd_get_linker_section (abfd
, ".got");
3356 if (htab
->is_vxworks
)
3358 htab
->sgotplt
= bfd_get_linker_section (abfd
, ".got.plt");
3364 /* The powerpc .got has a blrl instruction in it. Mark it
3366 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_HAS_CONTENTS
3367 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3368 if (!bfd_set_section_flags (abfd
, s
, flags
))
3372 htab
->relgot
= bfd_get_linker_section (abfd
, ".rela.got");
3379 /* Create a special linker section, used for R_PPC_EMB_SDAI16 and
3380 R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata
3381 and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */
3384 ppc_elf_create_linker_section (bfd
*abfd
,
3385 struct bfd_link_info
*info
,
3387 elf_linker_section_t
*lsect
)
3391 flags
|= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
3392 | SEC_LINKER_CREATED
);
3394 s
= bfd_make_section_anyway_with_flags (abfd
, lsect
->name
, flags
);
3399 /* Define the sym on the first section of this name. */
3400 s
= bfd_get_section_by_name (abfd
, lsect
->name
);
3402 lsect
->sym
= _bfd_elf_define_linkage_sym (abfd
, info
, s
, lsect
->sym_name
);
3403 if (lsect
->sym
== NULL
)
3405 lsect
->sym
->root
.u
.def
.value
= 0x8000;
3410 ppc_elf_create_glink (bfd
*abfd
, struct bfd_link_info
*info
)
3412 struct ppc_elf_link_hash_table
*htab
= ppc_elf_hash_table (info
);
3416 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_READONLY
| SEC_HAS_CONTENTS
3417 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3418 s
= bfd_make_section_anyway_with_flags (abfd
, ".glink", flags
);
3421 || !bfd_set_section_alignment (abfd
, s
,
3422 htab
->params
->ppc476_workaround
? 6 : 4))
3425 if (!info
->no_ld_generated_unwind_info
)
3427 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
| SEC_HAS_CONTENTS
3428 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3429 s
= bfd_make_section_anyway_with_flags (abfd
, ".eh_frame", flags
);
3430 htab
->glink_eh_frame
= s
;
3432 || !bfd_set_section_alignment (abfd
, s
, 2))
3436 flags
= SEC_ALLOC
| SEC_LINKER_CREATED
;
3437 s
= bfd_make_section_anyway_with_flags (abfd
, ".iplt", flags
);
3440 || !bfd_set_section_alignment (abfd
, s
, 4))
3443 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
| SEC_HAS_CONTENTS
3444 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3445 s
= bfd_make_section_anyway_with_flags (abfd
, ".rela.iplt", flags
);
3448 || ! bfd_set_section_alignment (abfd
, s
, 2))
3451 if (!ppc_elf_create_linker_section (abfd
, info
, 0,
3455 if (!ppc_elf_create_linker_section (abfd
, info
, SEC_READONLY
,
3462 /* We have to create .dynsbss and .rela.sbss here so that they get mapped
3463 to output sections (just like _bfd_elf_create_dynamic_sections has
3464 to create .dynbss and .rela.bss). */
3467 ppc_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
3469 struct ppc_elf_link_hash_table
*htab
;
3473 htab
= ppc_elf_hash_table (info
);
3475 if (htab
->got
== NULL
3476 && !ppc_elf_create_got (abfd
, info
))
3479 if (!_bfd_elf_create_dynamic_sections (abfd
, info
))
3482 if (htab
->glink
== NULL
3483 && !ppc_elf_create_glink (abfd
, info
))
3486 htab
->dynbss
= bfd_get_linker_section (abfd
, ".dynbss");
3487 s
= bfd_make_section_anyway_with_flags (abfd
, ".dynsbss",
3488 SEC_ALLOC
| SEC_LINKER_CREATED
);
3493 if (! bfd_link_pic (info
))
3495 htab
->relbss
= bfd_get_linker_section (abfd
, ".rela.bss");
3496 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
| SEC_HAS_CONTENTS
3497 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3498 s
= bfd_make_section_anyway_with_flags (abfd
, ".rela.sbss", flags
);
3501 || ! bfd_set_section_alignment (abfd
, s
, 2))
3505 if (htab
->is_vxworks
3506 && !elf_vxworks_create_dynamic_sections (abfd
, info
, &htab
->srelplt2
))
3509 htab
->relplt
= bfd_get_linker_section (abfd
, ".rela.plt");
3510 htab
->plt
= s
= bfd_get_linker_section (abfd
, ".plt");
3514 flags
= SEC_ALLOC
| SEC_CODE
| SEC_LINKER_CREATED
;
3515 if (htab
->plt_type
== PLT_VXWORKS
)
3516 /* The VxWorks PLT is a loaded section with contents. */
3517 flags
|= SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_READONLY
;
3518 return bfd_set_section_flags (abfd
, s
, flags
);
3521 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3524 ppc_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
3525 struct elf_link_hash_entry
*dir
,
3526 struct elf_link_hash_entry
*ind
)
3528 struct ppc_elf_link_hash_entry
*edir
, *eind
;
3530 edir
= (struct ppc_elf_link_hash_entry
*) dir
;
3531 eind
= (struct ppc_elf_link_hash_entry
*) ind
;
3533 edir
->tls_mask
|= eind
->tls_mask
;
3534 edir
->has_sda_refs
|= eind
->has_sda_refs
;
3536 /* If called to transfer flags for a weakdef during processing
3537 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3538 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3539 if (!(ELIMINATE_COPY_RELOCS
3540 && eind
->elf
.root
.type
!= bfd_link_hash_indirect
3541 && edir
->elf
.dynamic_adjusted
))
3542 edir
->elf
.non_got_ref
|= eind
->elf
.non_got_ref
;
3544 edir
->elf
.ref_dynamic
|= eind
->elf
.ref_dynamic
;
3545 edir
->elf
.ref_regular
|= eind
->elf
.ref_regular
;
3546 edir
->elf
.ref_regular_nonweak
|= eind
->elf
.ref_regular_nonweak
;
3547 edir
->elf
.needs_plt
|= eind
->elf
.needs_plt
;
3548 edir
->elf
.pointer_equality_needed
|= eind
->elf
.pointer_equality_needed
;
3550 if (eind
->dyn_relocs
!= NULL
)
3552 if (edir
->dyn_relocs
!= NULL
)
3554 struct elf_dyn_relocs
**pp
;
3555 struct elf_dyn_relocs
*p
;
3557 /* Add reloc counts against the indirect sym to the direct sym
3558 list. Merge any entries against the same section. */
3559 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
3561 struct elf_dyn_relocs
*q
;
3563 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
3564 if (q
->sec
== p
->sec
)
3566 q
->pc_count
+= p
->pc_count
;
3567 q
->count
+= p
->count
;
3574 *pp
= edir
->dyn_relocs
;
3577 edir
->dyn_relocs
= eind
->dyn_relocs
;
3578 eind
->dyn_relocs
= NULL
;
3581 /* If we were called to copy over info for a weak sym, that's all.
3582 You might think dyn_relocs need not be copied over; After all,
3583 both syms will be dynamic or both non-dynamic so we're just
3584 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
3585 code in ppc_elf_adjust_dynamic_symbol needs to check for
3586 dyn_relocs in read-only sections, and it does so on what is the
3588 if (eind
->elf
.root
.type
!= bfd_link_hash_indirect
)
3591 /* Copy over the GOT refcount entries that we may have already seen to
3592 the symbol which just became indirect. */
3593 edir
->elf
.got
.refcount
+= eind
->elf
.got
.refcount
;
3594 eind
->elf
.got
.refcount
= 0;
3596 /* And plt entries. */
3597 if (eind
->elf
.plt
.plist
!= NULL
)
3599 if (edir
->elf
.plt
.plist
!= NULL
)
3601 struct plt_entry
**entp
;
3602 struct plt_entry
*ent
;
3604 for (entp
= &eind
->elf
.plt
.plist
; (ent
= *entp
) != NULL
; )
3606 struct plt_entry
*dent
;
3608 for (dent
= edir
->elf
.plt
.plist
; dent
!= NULL
; dent
= dent
->next
)
3609 if (dent
->sec
== ent
->sec
&& dent
->addend
== ent
->addend
)
3611 dent
->plt
.refcount
+= ent
->plt
.refcount
;
3618 *entp
= edir
->elf
.plt
.plist
;
3621 edir
->elf
.plt
.plist
= eind
->elf
.plt
.plist
;
3622 eind
->elf
.plt
.plist
= NULL
;
3625 if (eind
->elf
.dynindx
!= -1)
3627 if (edir
->elf
.dynindx
!= -1)
3628 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
3629 edir
->elf
.dynstr_index
);
3630 edir
->elf
.dynindx
= eind
->elf
.dynindx
;
3631 edir
->elf
.dynstr_index
= eind
->elf
.dynstr_index
;
3632 eind
->elf
.dynindx
= -1;
3633 eind
->elf
.dynstr_index
= 0;
3637 /* Hook called by the linker routine which adds symbols from an object
3638 file. We use it to put .comm items in .sbss, and not .bss. */
3641 ppc_elf_add_symbol_hook (bfd
*abfd
,
3642 struct bfd_link_info
*info
,
3643 Elf_Internal_Sym
*sym
,
3644 const char **namep ATTRIBUTE_UNUSED
,
3645 flagword
*flagsp ATTRIBUTE_UNUSED
,
3649 if (sym
->st_shndx
== SHN_COMMON
3650 && !bfd_link_relocatable (info
)
3651 && is_ppc_elf (info
->output_bfd
)
3652 && sym
->st_size
<= elf_gp_size (abfd
))
3654 /* Common symbols less than or equal to -G nn bytes are automatically
3656 struct ppc_elf_link_hash_table
*htab
;
3658 htab
= ppc_elf_hash_table (info
);
3659 if (htab
->sbss
== NULL
)
3661 flagword flags
= SEC_IS_COMMON
| SEC_LINKER_CREATED
;
3663 if (!htab
->elf
.dynobj
)
3664 htab
->elf
.dynobj
= abfd
;
3666 htab
->sbss
= bfd_make_section_anyway_with_flags (htab
->elf
.dynobj
,
3669 if (htab
->sbss
== NULL
)
3674 *valp
= sym
->st_size
;
3677 if (ELF_ST_TYPE (sym
->st_info
) == STT_GNU_IFUNC
3678 && (abfd
->flags
& DYNAMIC
) == 0
3679 && bfd_get_flavour (info
->output_bfd
) == bfd_target_elf_flavour
)
3680 elf_tdata (info
->output_bfd
)->has_gnu_symbols
|= elf_gnu_symbol_ifunc
;
3685 /* Find a linker generated pointer with a given addend and type. */
3687 static elf_linker_section_pointers_t
*
3688 elf_find_pointer_linker_section
3689 (elf_linker_section_pointers_t
*linker_pointers
,
3691 elf_linker_section_t
*lsect
)
3693 for ( ; linker_pointers
!= NULL
; linker_pointers
= linker_pointers
->next
)
3694 if (lsect
== linker_pointers
->lsect
&& addend
== linker_pointers
->addend
)
3695 return linker_pointers
;
3700 /* Allocate a pointer to live in a linker created section. */
3703 elf_allocate_pointer_linker_section (bfd
*abfd
,
3704 elf_linker_section_t
*lsect
,
3705 struct elf_link_hash_entry
*h
,
3706 const Elf_Internal_Rela
*rel
)
3708 elf_linker_section_pointers_t
**ptr_linker_section_ptr
= NULL
;
3709 elf_linker_section_pointers_t
*linker_section_ptr
;
3710 unsigned long r_symndx
= ELF32_R_SYM (rel
->r_info
);
3713 BFD_ASSERT (lsect
!= NULL
);
3715 /* Is this a global symbol? */
3718 struct ppc_elf_link_hash_entry
*eh
;
3720 /* Has this symbol already been allocated? If so, our work is done. */
3721 eh
= (struct ppc_elf_link_hash_entry
*) h
;
3722 if (elf_find_pointer_linker_section (eh
->linker_section_pointer
,
3727 ptr_linker_section_ptr
= &eh
->linker_section_pointer
;
3731 BFD_ASSERT (is_ppc_elf (abfd
));
3733 /* Allocation of a pointer to a local symbol. */
3734 elf_linker_section_pointers_t
**ptr
= elf_local_ptr_offsets (abfd
);
3736 /* Allocate a table to hold the local symbols if first time. */
3739 unsigned int num_symbols
= elf_symtab_hdr (abfd
).sh_info
;
3742 amt
*= sizeof (elf_linker_section_pointers_t
*);
3743 ptr
= bfd_zalloc (abfd
, amt
);
3748 elf_local_ptr_offsets (abfd
) = ptr
;
3751 /* Has this symbol already been allocated? If so, our work is done. */
3752 if (elf_find_pointer_linker_section (ptr
[r_symndx
],
3757 ptr_linker_section_ptr
= &ptr
[r_symndx
];
3760 /* Allocate space for a pointer in the linker section, and allocate
3761 a new pointer record from internal memory. */
3762 BFD_ASSERT (ptr_linker_section_ptr
!= NULL
);
3763 amt
= sizeof (elf_linker_section_pointers_t
);
3764 linker_section_ptr
= bfd_alloc (abfd
, amt
);
3766 if (!linker_section_ptr
)
3769 linker_section_ptr
->next
= *ptr_linker_section_ptr
;
3770 linker_section_ptr
->addend
= rel
->r_addend
;
3771 linker_section_ptr
->lsect
= lsect
;
3772 *ptr_linker_section_ptr
= linker_section_ptr
;
3774 if (!bfd_set_section_alignment (lsect
->section
->owner
, lsect
->section
, 2))
3776 linker_section_ptr
->offset
= lsect
->section
->size
;
3777 lsect
->section
->size
+= 4;
3781 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3782 lsect
->name
, (long) linker_section_ptr
->offset
,
3783 (long) lsect
->section
->size
);
3789 static struct plt_entry
**
3790 update_local_sym_info (bfd
*abfd
,
3791 Elf_Internal_Shdr
*symtab_hdr
,
3792 unsigned long r_symndx
,
3795 bfd_signed_vma
*local_got_refcounts
= elf_local_got_refcounts (abfd
);
3796 struct plt_entry
**local_plt
;
3797 char *local_got_tls_masks
;
3799 if (local_got_refcounts
== NULL
)
3801 bfd_size_type size
= symtab_hdr
->sh_info
;
3803 size
*= (sizeof (*local_got_refcounts
)
3804 + sizeof (*local_plt
)
3805 + sizeof (*local_got_tls_masks
));
3806 local_got_refcounts
= bfd_zalloc (abfd
, size
);
3807 if (local_got_refcounts
== NULL
)
3809 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
3812 local_plt
= (struct plt_entry
**) (local_got_refcounts
+ symtab_hdr
->sh_info
);
3813 local_got_tls_masks
= (char *) (local_plt
+ symtab_hdr
->sh_info
);
3814 local_got_tls_masks
[r_symndx
] |= tls_type
;
3815 if (tls_type
!= PLT_IFUNC
)
3816 local_got_refcounts
[r_symndx
] += 1;
3817 return local_plt
+ r_symndx
;
3821 update_plt_info (bfd
*abfd
, struct plt_entry
**plist
,
3822 asection
*sec
, bfd_vma addend
)
3824 struct plt_entry
*ent
;
3828 for (ent
= *plist
; ent
!= NULL
; ent
= ent
->next
)
3829 if (ent
->sec
== sec
&& ent
->addend
== addend
)
3833 bfd_size_type amt
= sizeof (*ent
);
3834 ent
= bfd_alloc (abfd
, amt
);
3839 ent
->addend
= addend
;
3840 ent
->plt
.refcount
= 0;
3843 ent
->plt
.refcount
+= 1;
3847 static struct plt_entry
*
3848 find_plt_ent (struct plt_entry
**plist
, asection
*sec
, bfd_vma addend
)
3850 struct plt_entry
*ent
;
3854 for (ent
= *plist
; ent
!= NULL
; ent
= ent
->next
)
3855 if (ent
->sec
== sec
&& ent
->addend
== addend
)
3861 is_branch_reloc (enum elf_ppc_reloc_type r_type
)
3863 return (r_type
== R_PPC_PLTREL24
3864 || r_type
== R_PPC_LOCAL24PC
3865 || r_type
== R_PPC_REL24
3866 || r_type
== R_PPC_REL14
3867 || r_type
== R_PPC_REL14_BRTAKEN
3868 || r_type
== R_PPC_REL14_BRNTAKEN
3869 || r_type
== R_PPC_ADDR24
3870 || r_type
== R_PPC_ADDR14
3871 || r_type
== R_PPC_ADDR14_BRTAKEN
3872 || r_type
== R_PPC_ADDR14_BRNTAKEN
);
3876 bad_shared_reloc (bfd
*abfd
, enum elf_ppc_reloc_type r_type
)
3878 (*_bfd_error_handler
)
3879 (_("%B: relocation %s cannot be used when making a shared object"),
3881 ppc_elf_howto_table
[r_type
]->name
);
3882 bfd_set_error (bfd_error_bad_value
);
3885 /* Look through the relocs for a section during the first phase, and
3886 allocate space in the global offset table or procedure linkage
3890 ppc_elf_check_relocs (bfd
*abfd
,
3891 struct bfd_link_info
*info
,
3893 const Elf_Internal_Rela
*relocs
)
3895 struct ppc_elf_link_hash_table
*htab
;
3896 Elf_Internal_Shdr
*symtab_hdr
;
3897 struct elf_link_hash_entry
**sym_hashes
;
3898 const Elf_Internal_Rela
*rel
;
3899 const Elf_Internal_Rela
*rel_end
;
3900 asection
*got2
, *sreloc
;
3901 struct elf_link_hash_entry
*tga
;
3903 if (bfd_link_relocatable (info
))
3906 /* Don't do anything special with non-loaded, non-alloced sections.
3907 In particular, any relocs in such sections should not affect GOT
3908 and PLT reference counting (ie. we don't allow them to create GOT
3909 or PLT entries), there's no possibility or desire to optimize TLS
3910 relocs, and there's not much point in propagating relocs to shared
3911 libs that the dynamic linker won't relocate. */
3912 if ((sec
->flags
& SEC_ALLOC
) == 0)
3916 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3920 BFD_ASSERT (is_ppc_elf (abfd
));
3922 /* Initialize howto table if not already done. */
3923 if (!ppc_elf_howto_table
[R_PPC_ADDR32
])
3924 ppc_elf_howto_init ();
3926 htab
= ppc_elf_hash_table (info
);
3927 if (htab
->glink
== NULL
)
3929 if (htab
->elf
.dynobj
== NULL
)
3930 htab
->elf
.dynobj
= abfd
;
3931 if (!ppc_elf_create_glink (htab
->elf
.dynobj
, info
))
3934 tga
= elf_link_hash_lookup (&htab
->elf
, "__tls_get_addr",
3935 FALSE
, FALSE
, TRUE
);
3936 symtab_hdr
= &elf_symtab_hdr (abfd
);
3937 sym_hashes
= elf_sym_hashes (abfd
);
3938 got2
= bfd_get_section_by_name (abfd
, ".got2");
3941 rel_end
= relocs
+ sec
->reloc_count
;
3942 for (rel
= relocs
; rel
< rel_end
; rel
++)
3944 unsigned long r_symndx
;
3945 enum elf_ppc_reloc_type r_type
;
3946 struct elf_link_hash_entry
*h
;
3948 struct plt_entry
**ifunc
;
3950 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3951 if (r_symndx
< symtab_hdr
->sh_info
)
3955 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3956 while (h
->root
.type
== bfd_link_hash_indirect
3957 || h
->root
.type
== bfd_link_hash_warning
)
3958 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3960 /* PR15323, ref flags aren't set for references in the same
3962 h
->root
.non_ir_ref
= 1;
3965 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3966 This shows up in particular in an R_PPC_ADDR32 in the eabi
3969 && htab
->got
== NULL
3970 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
3972 if (htab
->elf
.dynobj
== NULL
)
3973 htab
->elf
.dynobj
= abfd
;
3974 if (!ppc_elf_create_got (htab
->elf
.dynobj
, info
))
3976 BFD_ASSERT (h
== htab
->elf
.hgot
);
3980 r_type
= ELF32_R_TYPE (rel
->r_info
);
3982 if (h
== NULL
&& !htab
->is_vxworks
)
3984 Elf_Internal_Sym
*isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
3989 if (ELF_ST_TYPE (isym
->st_info
) == STT_GNU_IFUNC
)
3991 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
3992 ifunc
= update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
3997 /* STT_GNU_IFUNC symbols must have a PLT entry;
3998 In a non-pie executable even when there are
4000 if (!bfd_link_pic (info
)
4001 || is_branch_reloc (r_type
))
4004 if (r_type
== R_PPC_PLTREL24
)
4006 ppc_elf_tdata (abfd
)->makes_plt_call
= 1;
4007 if (bfd_link_pic (info
))
4008 addend
= rel
->r_addend
;
4010 if (!update_plt_info (abfd
, ifunc
, got2
, addend
))
4016 if (!htab
->is_vxworks
4017 && is_branch_reloc (r_type
)
4022 && (ELF32_R_TYPE (rel
[-1].r_info
) == R_PPC_TLSGD
4023 || ELF32_R_TYPE (rel
[-1].r_info
) == R_PPC_TLSLD
))
4024 /* We have a new-style __tls_get_addr call with a marker
4028 /* Mark this section as having an old-style call. */
4029 sec
->has_tls_get_addr_call
= 1;
4036 /* These special tls relocs tie a call to __tls_get_addr with
4037 its parameter symbol. */
4040 case R_PPC_GOT_TLSLD16
:
4041 case R_PPC_GOT_TLSLD16_LO
:
4042 case R_PPC_GOT_TLSLD16_HI
:
4043 case R_PPC_GOT_TLSLD16_HA
:
4044 tls_type
= TLS_TLS
| TLS_LD
;
4047 case R_PPC_GOT_TLSGD16
:
4048 case R_PPC_GOT_TLSGD16_LO
:
4049 case R_PPC_GOT_TLSGD16_HI
:
4050 case R_PPC_GOT_TLSGD16_HA
:
4051 tls_type
= TLS_TLS
| TLS_GD
;
4054 case R_PPC_GOT_TPREL16
:
4055 case R_PPC_GOT_TPREL16_LO
:
4056 case R_PPC_GOT_TPREL16_HI
:
4057 case R_PPC_GOT_TPREL16_HA
:
4058 if (bfd_link_pic (info
))
4059 info
->flags
|= DF_STATIC_TLS
;
4060 tls_type
= TLS_TLS
| TLS_TPREL
;
4063 case R_PPC_GOT_DTPREL16
:
4064 case R_PPC_GOT_DTPREL16_LO
:
4065 case R_PPC_GOT_DTPREL16_HI
:
4066 case R_PPC_GOT_DTPREL16_HA
:
4067 tls_type
= TLS_TLS
| TLS_DTPREL
;
4069 sec
->has_tls_reloc
= 1;
4072 /* GOT16 relocations */
4074 case R_PPC_GOT16_LO
:
4075 case R_PPC_GOT16_HI
:
4076 case R_PPC_GOT16_HA
:
4077 /* This symbol requires a global offset table entry. */
4078 if (htab
->got
== NULL
)
4080 if (htab
->elf
.dynobj
== NULL
)
4081 htab
->elf
.dynobj
= abfd
;
4082 if (!ppc_elf_create_got (htab
->elf
.dynobj
, info
))
4087 h
->got
.refcount
+= 1;
4088 ppc_elf_hash_entry (h
)->tls_mask
|= tls_type
;
4091 /* This is a global offset table entry for a local symbol. */
4092 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
, tls_type
))
4095 /* We may also need a plt entry if the symbol turns out to be
4097 if (h
!= NULL
&& !bfd_link_pic (info
))
4099 if (!update_plt_info (abfd
, &h
->plt
.plist
, NULL
, 0))
4104 /* Indirect .sdata relocation. */
4105 case R_PPC_EMB_SDAI16
:
4106 if (bfd_link_pic (info
))
4108 bad_shared_reloc (abfd
, r_type
);
4111 htab
->sdata
[0].sym
->ref_regular
= 1;
4112 if (!elf_allocate_pointer_linker_section (abfd
, &htab
->sdata
[0],
4117 ppc_elf_hash_entry (h
)->has_sda_refs
= TRUE
;
4118 h
->non_got_ref
= TRUE
;
4122 /* Indirect .sdata2 relocation. */
4123 case R_PPC_EMB_SDA2I16
:
4124 if (bfd_link_pic (info
))
4126 bad_shared_reloc (abfd
, r_type
);
4129 htab
->sdata
[1].sym
->ref_regular
= 1;
4130 if (!elf_allocate_pointer_linker_section (abfd
, &htab
->sdata
[1],
4135 ppc_elf_hash_entry (h
)->has_sda_refs
= TRUE
;
4136 h
->non_got_ref
= TRUE
;
4140 case R_PPC_SDAREL16
:
4141 htab
->sdata
[0].sym
->ref_regular
= 1;
4144 case R_PPC_VLE_SDAREL_LO16A
:
4145 case R_PPC_VLE_SDAREL_LO16D
:
4146 case R_PPC_VLE_SDAREL_HI16A
:
4147 case R_PPC_VLE_SDAREL_HI16D
:
4148 case R_PPC_VLE_SDAREL_HA16A
:
4149 case R_PPC_VLE_SDAREL_HA16D
:
4152 ppc_elf_hash_entry (h
)->has_sda_refs
= TRUE
;
4153 h
->non_got_ref
= TRUE
;
4157 case R_PPC_VLE_REL8
:
4158 case R_PPC_VLE_REL15
:
4159 case R_PPC_VLE_REL24
:
4160 case R_PPC_VLE_LO16A
:
4161 case R_PPC_VLE_LO16D
:
4162 case R_PPC_VLE_HI16A
:
4163 case R_PPC_VLE_HI16D
:
4164 case R_PPC_VLE_HA16A
:
4165 case R_PPC_VLE_HA16D
:
4168 case R_PPC_EMB_SDA2REL
:
4169 if (bfd_link_pic (info
))
4171 bad_shared_reloc (abfd
, r_type
);
4174 htab
->sdata
[1].sym
->ref_regular
= 1;
4177 ppc_elf_hash_entry (h
)->has_sda_refs
= TRUE
;
4178 h
->non_got_ref
= TRUE
;
4182 case R_PPC_VLE_SDA21_LO
:
4183 case R_PPC_VLE_SDA21
:
4184 case R_PPC_EMB_SDA21
:
4185 case R_PPC_EMB_RELSDA
:
4186 if (bfd_link_pic (info
))
4188 bad_shared_reloc (abfd
, r_type
);
4193 ppc_elf_hash_entry (h
)->has_sda_refs
= TRUE
;
4194 h
->non_got_ref
= TRUE
;
4198 case R_PPC_EMB_NADDR32
:
4199 case R_PPC_EMB_NADDR16
:
4200 case R_PPC_EMB_NADDR16_LO
:
4201 case R_PPC_EMB_NADDR16_HI
:
4202 case R_PPC_EMB_NADDR16_HA
:
4203 if (bfd_link_pic (info
))
4205 bad_shared_reloc (abfd
, r_type
);
4209 h
->non_got_ref
= TRUE
;
4212 case R_PPC_PLTREL24
:
4217 case R_PPC_PLTREL32
:
4218 case R_PPC_PLT16_LO
:
4219 case R_PPC_PLT16_HI
:
4220 case R_PPC_PLT16_HA
:
4222 fprintf (stderr
, "Reloc requires a PLT entry\n");
4224 /* This symbol requires a procedure linkage table entry. */
4229 /* It does not make sense to have a procedure linkage
4230 table entry for a non-ifunc local symbol. */
4231 info
->callbacks
->einfo
4232 (_("%P: %H: %s reloc against local symbol\n"),
4233 abfd
, sec
, rel
->r_offset
,
4234 ppc_elf_howto_table
[r_type
]->name
);
4235 bfd_set_error (bfd_error_bad_value
);
4243 if (r_type
== R_PPC_PLTREL24
)
4245 ppc_elf_tdata (abfd
)->makes_plt_call
= 1;
4246 if (bfd_link_pic (info
))
4247 addend
= rel
->r_addend
;
4250 if (!update_plt_info (abfd
, &h
->plt
.plist
, got2
, addend
))
4255 /* The following relocations don't need to propagate the
4256 relocation if linking a shared object since they are
4257 section relative. */
4259 case R_PPC_SECTOFF_LO
:
4260 case R_PPC_SECTOFF_HI
:
4261 case R_PPC_SECTOFF_HA
:
4262 case R_PPC_DTPREL16
:
4263 case R_PPC_DTPREL16_LO
:
4264 case R_PPC_DTPREL16_HI
:
4265 case R_PPC_DTPREL16_HA
:
4270 case R_PPC_REL16_LO
:
4271 case R_PPC_REL16_HI
:
4272 case R_PPC_REL16_HA
:
4273 case R_PPC_REL16DX_HA
:
4274 ppc_elf_tdata (abfd
)->has_rel16
= 1;
4277 /* These are just markers. */
4279 case R_PPC_EMB_MRKREF
:
4283 case R_PPC_RELAX_PLT
:
4284 case R_PPC_RELAX_PLTREL24
:
4287 /* These should only appear in dynamic objects. */
4289 case R_PPC_GLOB_DAT
:
4290 case R_PPC_JMP_SLOT
:
4291 case R_PPC_RELATIVE
:
4292 case R_PPC_IRELATIVE
:
4295 /* These aren't handled yet. We'll report an error later. */
4297 case R_PPC_EMB_RELSEC16
:
4298 case R_PPC_EMB_RELST_LO
:
4299 case R_PPC_EMB_RELST_HI
:
4300 case R_PPC_EMB_RELST_HA
:
4301 case R_PPC_EMB_BIT_FLD
:
4304 /* This refers only to functions defined in the shared library. */
4305 case R_PPC_LOCAL24PC
:
4306 if (h
!= NULL
&& h
== htab
->elf
.hgot
&& htab
->plt_type
== PLT_UNSET
)
4308 htab
->plt_type
= PLT_OLD
;
4309 htab
->old_bfd
= abfd
;
4311 if (h
!= NULL
&& h
->type
== STT_GNU_IFUNC
)
4313 if (bfd_link_pic (info
))
4315 info
->callbacks
->einfo
4316 (_("%P: %H: @local call to ifunc %s\n"),
4317 abfd
, sec
, rel
->r_offset
,
4318 h
->root
.root
.string
);
4319 bfd_set_error (bfd_error_bad_value
);
4323 if (!update_plt_info (abfd
, &h
->plt
.plist
, NULL
, 0))
4328 /* This relocation describes the C++ object vtable hierarchy.
4329 Reconstruct it for later use during GC. */
4330 case R_PPC_GNU_VTINHERIT
:
4331 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
4335 /* This relocation describes which C++ vtable entries are actually
4336 used. Record for later use during GC. */
4337 case R_PPC_GNU_VTENTRY
:
4338 BFD_ASSERT (h
!= NULL
);
4340 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
4344 /* We shouldn't really be seeing these. */
4347 case R_PPC_TPREL16_LO
:
4348 case R_PPC_TPREL16_HI
:
4349 case R_PPC_TPREL16_HA
:
4350 if (bfd_link_pic (info
))
4351 info
->flags
|= DF_STATIC_TLS
;
4355 case R_PPC_DTPMOD32
:
4356 case R_PPC_DTPREL32
:
4362 && (sec
->flags
& SEC_CODE
) != 0
4363 && bfd_link_pic (info
)
4364 && htab
->plt_type
== PLT_UNSET
)
4366 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4367 the start of a function, which assembles to a REL32
4368 reference to .got2. If we detect one of these, then
4369 force the old PLT layout because the linker cannot
4370 reliably deduce the GOT pointer value needed for
4373 Elf_Internal_Sym
*isym
;
4375 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
4380 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
4383 htab
->plt_type
= PLT_OLD
;
4384 htab
->old_bfd
= abfd
;
4387 if (h
== NULL
|| h
== htab
->elf
.hgot
)
4393 case R_PPC_ADDR16_LO
:
4394 case R_PPC_ADDR16_HI
:
4395 case R_PPC_ADDR16_HA
:
4398 if (h
!= NULL
&& !bfd_link_pic (info
))
4400 /* We may need a plt entry if the symbol turns out to be
4401 a function defined in a dynamic object. */
4402 if (!update_plt_info (abfd
, &h
->plt
.plist
, NULL
, 0))
4405 /* We may need a copy reloc too. */
4407 h
->pointer_equality_needed
= 1;
4408 if (r_type
== R_PPC_ADDR16_HA
)
4409 ppc_elf_hash_entry (h
)->has_addr16_ha
= 1;
4410 if (r_type
== R_PPC_ADDR16_LO
)
4411 ppc_elf_hash_entry (h
)->has_addr16_lo
= 1;
4417 case R_PPC_REL14_BRTAKEN
:
4418 case R_PPC_REL14_BRNTAKEN
:
4421 if (h
== htab
->elf
.hgot
)
4423 if (htab
->plt_type
== PLT_UNSET
)
4425 htab
->plt_type
= PLT_OLD
;
4426 htab
->old_bfd
= abfd
;
4434 case R_PPC_ADDR14_BRTAKEN
:
4435 case R_PPC_ADDR14_BRNTAKEN
:
4436 if (h
!= NULL
&& !bfd_link_pic (info
))
4438 /* We may need a plt entry if the symbol turns out to be
4439 a function defined in a dynamic object. */
4441 if (!update_plt_info (abfd
, &h
->plt
.plist
, NULL
, 0))
4447 /* If we are creating a shared library, and this is a reloc
4448 against a global symbol, or a non PC relative reloc
4449 against a local symbol, then we need to copy the reloc
4450 into the shared library. However, if we are linking with
4451 -Bsymbolic, we do not need to copy a reloc against a
4452 global symbol which is defined in an object we are
4453 including in the link (i.e., DEF_REGULAR is set). At
4454 this point we have not seen all the input files, so it is
4455 possible that DEF_REGULAR is not set now but will be set
4456 later (it is never cleared). In case of a weak definition,
4457 DEF_REGULAR may be cleared later by a strong definition in
4458 a shared library. We account for that possibility below by
4459 storing information in the dyn_relocs field of the hash
4460 table entry. A similar situation occurs when creating
4461 shared libraries and symbol visibility changes render the
4464 If on the other hand, we are creating an executable, we
4465 may need to keep relocations for symbols satisfied by a
4466 dynamic library if we manage to avoid copy relocs for the
4468 if ((bfd_link_pic (info
)
4469 && (must_be_dyn_reloc (info
, r_type
)
4471 && (!SYMBOLIC_BIND (info
, h
)
4472 || h
->root
.type
== bfd_link_hash_defweak
4473 || !h
->def_regular
))))
4474 || (ELIMINATE_COPY_RELOCS
4475 && !bfd_link_pic (info
)
4477 && (h
->root
.type
== bfd_link_hash_defweak
4478 || !h
->def_regular
)))
4482 "ppc_elf_check_relocs needs to "
4483 "create relocation for %s\n",
4484 (h
&& h
->root
.root
.string
4485 ? h
->root
.root
.string
: "<unknown>"));
4489 if (htab
->elf
.dynobj
== NULL
)
4490 htab
->elf
.dynobj
= abfd
;
4492 sreloc
= _bfd_elf_make_dynamic_reloc_section
4493 (sec
, htab
->elf
.dynobj
, 2, abfd
, /*rela?*/ TRUE
);
4499 /* If this is a global symbol, we count the number of
4500 relocations we need for this symbol. */
4503 struct elf_dyn_relocs
*p
;
4504 struct elf_dyn_relocs
**rel_head
;
4506 rel_head
= &ppc_elf_hash_entry (h
)->dyn_relocs
;
4508 if (p
== NULL
|| p
->sec
!= sec
)
4510 p
= bfd_alloc (htab
->elf
.dynobj
, sizeof *p
);
4513 p
->next
= *rel_head
;
4520 if (!must_be_dyn_reloc (info
, r_type
))
4525 /* Track dynamic relocs needed for local syms too.
4526 We really need local syms available to do this
4528 struct ppc_dyn_relocs
*p
;
4529 struct ppc_dyn_relocs
**rel_head
;
4530 bfd_boolean is_ifunc
;
4533 Elf_Internal_Sym
*isym
;
4535 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
4540 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
4544 vpp
= &elf_section_data (s
)->local_dynrel
;
4545 rel_head
= (struct ppc_dyn_relocs
**) vpp
;
4546 is_ifunc
= ELF_ST_TYPE (isym
->st_info
) == STT_GNU_IFUNC
;
4548 if (p
!= NULL
&& p
->sec
== sec
&& p
->ifunc
!= is_ifunc
)
4550 if (p
== NULL
|| p
->sec
!= sec
|| p
->ifunc
!= is_ifunc
)
4552 p
= bfd_alloc (htab
->elf
.dynobj
, sizeof *p
);
4555 p
->next
= *rel_head
;
4558 p
->ifunc
= is_ifunc
;
4573 /* Merge object attributes from IBFD into OBFD. Raise an error if
4574 there are conflicting attributes. */
4576 ppc_elf_merge_obj_attributes (bfd
*ibfd
, bfd
*obfd
)
4578 obj_attribute
*in_attr
, *in_attrs
;
4579 obj_attribute
*out_attr
, *out_attrs
;
4581 if (!elf_known_obj_attributes_proc (obfd
)[0].i
)
4583 /* This is the first object. Copy the attributes. */
4584 _bfd_elf_copy_obj_attributes (ibfd
, obfd
);
4586 /* Use the Tag_null value to indicate the attributes have been
4588 elf_known_obj_attributes_proc (obfd
)[0].i
= 1;
4593 in_attrs
= elf_known_obj_attributes (ibfd
)[OBJ_ATTR_GNU
];
4594 out_attrs
= elf_known_obj_attributes (obfd
)[OBJ_ATTR_GNU
];
4596 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
4597 non-conflicting ones. */
4598 in_attr
= &in_attrs
[Tag_GNU_Power_ABI_FP
];
4599 out_attr
= &out_attrs
[Tag_GNU_Power_ABI_FP
];
4600 if (in_attr
->i
!= out_attr
->i
)
4603 if (out_attr
->i
== 0)
4604 out_attr
->i
= in_attr
->i
;
4605 else if (in_attr
->i
== 0)
4607 else if (out_attr
->i
== 1 && in_attr
->i
== 2)
4609 (_("Warning: %B uses hard float, %B uses soft float"), obfd
, ibfd
);
4610 else if (out_attr
->i
== 1 && in_attr
->i
== 3)
4612 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4614 else if (out_attr
->i
== 3 && in_attr
->i
== 1)
4616 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4618 else if (out_attr
->i
== 3 && in_attr
->i
== 2)
4620 (_("Warning: %B uses soft float, %B uses single-precision hard float"),
4622 else if (out_attr
->i
== 2 && (in_attr
->i
== 1 || in_attr
->i
== 3))
4624 (_("Warning: %B uses hard float, %B uses soft float"), ibfd
, obfd
);
4625 else if (in_attr
->i
> 3)
4627 (_("Warning: %B uses unknown floating point ABI %d"), ibfd
,
4631 (_("Warning: %B uses unknown floating point ABI %d"), obfd
,
4635 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4636 merge non-conflicting ones. */
4637 in_attr
= &in_attrs
[Tag_GNU_Power_ABI_Vector
];
4638 out_attr
= &out_attrs
[Tag_GNU_Power_ABI_Vector
];
4639 if (in_attr
->i
!= out_attr
->i
)
4641 const char *in_abi
= NULL
, *out_abi
= NULL
;
4645 case 1: in_abi
= "generic"; break;
4646 case 2: in_abi
= "AltiVec"; break;
4647 case 3: in_abi
= "SPE"; break;
4650 switch (out_attr
->i
)
4652 case 1: out_abi
= "generic"; break;
4653 case 2: out_abi
= "AltiVec"; break;
4654 case 3: out_abi
= "SPE"; break;
4658 if (out_attr
->i
== 0)
4659 out_attr
->i
= in_attr
->i
;
4660 else if (in_attr
->i
== 0)
4662 /* For now, allow generic to transition to AltiVec or SPE
4663 without a warning. If GCC marked files with their stack
4664 alignment and used don't-care markings for files which are
4665 not affected by the vector ABI, we could warn about this
4667 else if (out_attr
->i
== 1)
4668 out_attr
->i
= in_attr
->i
;
4669 else if (in_attr
->i
== 1)
4671 else if (in_abi
== NULL
)
4673 (_("Warning: %B uses unknown vector ABI %d"), ibfd
,
4675 else if (out_abi
== NULL
)
4677 (_("Warning: %B uses unknown vector ABI %d"), obfd
,
4681 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
4682 ibfd
, obfd
, in_abi
, out_abi
);
4685 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4686 and merge non-conflicting ones. */
4687 in_attr
= &in_attrs
[Tag_GNU_Power_ABI_Struct_Return
];
4688 out_attr
= &out_attrs
[Tag_GNU_Power_ABI_Struct_Return
];
4689 if (in_attr
->i
!= out_attr
->i
)
4692 if (out_attr
->i
== 0)
4693 out_attr
->i
= in_attr
->i
;
4694 else if (in_attr
->i
== 0)
4696 else if (out_attr
->i
== 1 && in_attr
->i
== 2)
4698 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd
, ibfd
);
4699 else if (out_attr
->i
== 2 && in_attr
->i
== 1)
4701 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd
, obfd
);
4702 else if (in_attr
->i
> 2)
4704 (_("Warning: %B uses unknown small structure return convention %d"), ibfd
,
4708 (_("Warning: %B uses unknown small structure return convention %d"), obfd
,
4712 /* Merge Tag_compatibility attributes and any common GNU ones. */
4713 _bfd_elf_merge_object_attributes (ibfd
, obfd
);
4718 /* Merge backend specific data from an object file to the output
4719 object file when linking. */
4722 ppc_elf_merge_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
4728 if (!is_ppc_elf (ibfd
) || !is_ppc_elf (obfd
))
4731 /* Check if we have the same endianness. */
4732 if (! _bfd_generic_verify_endian_match (ibfd
, obfd
))
4735 if (!ppc_elf_merge_obj_attributes (ibfd
, obfd
))
4738 new_flags
= elf_elfheader (ibfd
)->e_flags
;
4739 old_flags
= elf_elfheader (obfd
)->e_flags
;
4740 if (!elf_flags_init (obfd
))
4742 /* First call, no flags set. */
4743 elf_flags_init (obfd
) = TRUE
;
4744 elf_elfheader (obfd
)->e_flags
= new_flags
;
4747 /* Compatible flags are ok. */
4748 else if (new_flags
== old_flags
)
4751 /* Incompatible flags. */
4754 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4755 to be linked with either. */
4757 if ((new_flags
& EF_PPC_RELOCATABLE
) != 0
4758 && (old_flags
& (EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB
)) == 0)
4761 (*_bfd_error_handler
)
4762 (_("%B: compiled with -mrelocatable and linked with "
4763 "modules compiled normally"), ibfd
);
4765 else if ((new_flags
& (EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB
)) == 0
4766 && (old_flags
& EF_PPC_RELOCATABLE
) != 0)
4769 (*_bfd_error_handler
)
4770 (_("%B: compiled normally and linked with "
4771 "modules compiled with -mrelocatable"), ibfd
);
4774 /* The output is -mrelocatable-lib iff both the input files are. */
4775 if (! (new_flags
& EF_PPC_RELOCATABLE_LIB
))
4776 elf_elfheader (obfd
)->e_flags
&= ~EF_PPC_RELOCATABLE_LIB
;
4778 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4779 but each input file is either -mrelocatable or -mrelocatable-lib. */
4780 if (! (elf_elfheader (obfd
)->e_flags
& EF_PPC_RELOCATABLE_LIB
)
4781 && (new_flags
& (EF_PPC_RELOCATABLE_LIB
| EF_PPC_RELOCATABLE
))
4782 && (old_flags
& (EF_PPC_RELOCATABLE_LIB
| EF_PPC_RELOCATABLE
)))
4783 elf_elfheader (obfd
)->e_flags
|= EF_PPC_RELOCATABLE
;
4785 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4786 any module uses it. */
4787 elf_elfheader (obfd
)->e_flags
|= (new_flags
& EF_PPC_EMB
);
4789 new_flags
&= ~(EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB
| EF_PPC_EMB
);
4790 old_flags
&= ~(EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB
| EF_PPC_EMB
);
4792 /* Warn about any other mismatches. */
4793 if (new_flags
!= old_flags
)
4796 (*_bfd_error_handler
)
4797 (_("%B: uses different e_flags (0x%lx) fields "
4798 "than previous modules (0x%lx)"),
4799 ibfd
, (long) new_flags
, (long) old_flags
);
4804 bfd_set_error (bfd_error_bad_value
);
4813 ppc_elf_vle_split16 (bfd
*output_bfd
, bfd_byte
*loc
,
4815 split16_format_type split16_format
)
4818 unsigned int insn
, top5
;
4820 insn
= bfd_get_32 (output_bfd
, loc
);
4821 top5
= value
& 0xf800;
4822 top5
= top5
<< (split16_format
== split16a_type
? 9 : 5);
4824 insn
|= value
& 0x7ff;
4825 bfd_put_32 (output_bfd
, insn
, loc
);
4829 /* Choose which PLT scheme to use, and set .plt flags appropriately.
4830 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4832 ppc_elf_select_plt_layout (bfd
*output_bfd ATTRIBUTE_UNUSED
,
4833 struct bfd_link_info
*info
)
4835 struct ppc_elf_link_hash_table
*htab
;
4838 htab
= ppc_elf_hash_table (info
);
4840 if (htab
->plt_type
== PLT_UNSET
)
4842 struct elf_link_hash_entry
*h
;
4844 if (htab
->params
->plt_style
== PLT_OLD
)
4845 htab
->plt_type
= PLT_OLD
;
4846 else if (bfd_link_pic (info
)
4847 && htab
->elf
.dynamic_sections_created
4848 && (h
= elf_link_hash_lookup (&htab
->elf
, "_mcount",
4849 FALSE
, FALSE
, TRUE
)) != NULL
4850 && (h
->type
== STT_FUNC
4853 && !(SYMBOL_CALLS_LOCAL (info
, h
)
4854 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
4855 && h
->root
.type
== bfd_link_hash_undefweak
)))
4857 /* Profiling of shared libs (and pies) is not supported with
4858 secure plt, because ppc32 does profiling before a
4859 function prologue and a secure plt pic call stubs needs
4860 r30 to be set up. */
4861 htab
->plt_type
= PLT_OLD
;
4866 enum ppc_elf_plt_type plt_type
= htab
->params
->plt_style
;
4868 /* Look through the reloc flags left by ppc_elf_check_relocs.
4869 Use the old style bss plt if a file makes plt calls
4870 without using the new relocs, and if ld isn't given
4871 --secure-plt and we never see REL16 relocs. */
4872 if (plt_type
== PLT_UNSET
)
4874 for (ibfd
= info
->input_bfds
; ibfd
; ibfd
= ibfd
->link
.next
)
4875 if (is_ppc_elf (ibfd
))
4877 if (ppc_elf_tdata (ibfd
)->has_rel16
)
4879 else if (ppc_elf_tdata (ibfd
)->makes_plt_call
)
4882 htab
->old_bfd
= ibfd
;
4886 htab
->plt_type
= plt_type
;
4889 if (htab
->plt_type
== PLT_OLD
&& htab
->params
->plt_style
== PLT_NEW
)
4891 if (htab
->old_bfd
!= NULL
)
4892 info
->callbacks
->einfo (_("%P: bss-plt forced due to %B\n"),
4895 info
->callbacks
->einfo (_("%P: bss-plt forced by profiling\n"));
4898 BFD_ASSERT (htab
->plt_type
!= PLT_VXWORKS
);
4900 if (htab
->plt_type
== PLT_NEW
)
4902 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
4903 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
4905 /* The new PLT is a loaded section. */
4906 if (htab
->plt
!= NULL
4907 && !bfd_set_section_flags (htab
->elf
.dynobj
, htab
->plt
, flags
))
4910 /* The new GOT is not executable. */
4911 if (htab
->got
!= NULL
4912 && !bfd_set_section_flags (htab
->elf
.dynobj
, htab
->got
, flags
))
4917 /* Stop an unused .glink section from affecting .text alignment. */
4918 if (htab
->glink
!= NULL
4919 && !bfd_set_section_alignment (htab
->elf
.dynobj
, htab
->glink
, 0))
4922 return htab
->plt_type
== PLT_NEW
;
4925 /* Return the section that should be marked against GC for a given
4929 ppc_elf_gc_mark_hook (asection
*sec
,
4930 struct bfd_link_info
*info
,
4931 Elf_Internal_Rela
*rel
,
4932 struct elf_link_hash_entry
*h
,
4933 Elf_Internal_Sym
*sym
)
4936 switch (ELF32_R_TYPE (rel
->r_info
))
4938 case R_PPC_GNU_VTINHERIT
:
4939 case R_PPC_GNU_VTENTRY
:
4943 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
4946 /* Update the got, plt and dynamic reloc reference counts for the
4947 section being removed. */
4950 ppc_elf_gc_sweep_hook (bfd
*abfd
,
4951 struct bfd_link_info
*info
,
4953 const Elf_Internal_Rela
*relocs
)
4955 struct ppc_elf_link_hash_table
*htab
;
4956 Elf_Internal_Shdr
*symtab_hdr
;
4957 struct elf_link_hash_entry
**sym_hashes
;
4958 bfd_signed_vma
*local_got_refcounts
;
4959 const Elf_Internal_Rela
*rel
, *relend
;
4962 if (bfd_link_relocatable (info
))
4965 if ((sec
->flags
& SEC_ALLOC
) == 0)
4968 elf_section_data (sec
)->local_dynrel
= NULL
;
4970 htab
= ppc_elf_hash_table (info
);
4971 symtab_hdr
= &elf_symtab_hdr (abfd
);
4972 sym_hashes
= elf_sym_hashes (abfd
);
4973 local_got_refcounts
= elf_local_got_refcounts (abfd
);
4974 got2
= bfd_get_section_by_name (abfd
, ".got2");
4976 relend
= relocs
+ sec
->reloc_count
;
4977 for (rel
= relocs
; rel
< relend
; rel
++)
4979 unsigned long r_symndx
;
4980 enum elf_ppc_reloc_type r_type
;
4981 struct elf_link_hash_entry
*h
= NULL
;
4983 r_symndx
= ELF32_R_SYM (rel
->r_info
);
4984 if (r_symndx
>= symtab_hdr
->sh_info
)
4986 struct elf_dyn_relocs
**pp
, *p
;
4987 struct ppc_elf_link_hash_entry
*eh
;
4989 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4990 while (h
->root
.type
== bfd_link_hash_indirect
4991 || h
->root
.type
== bfd_link_hash_warning
)
4992 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4993 eh
= (struct ppc_elf_link_hash_entry
*) h
;
4995 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
4998 /* Everything must go for SEC. */
5004 r_type
= ELF32_R_TYPE (rel
->r_info
);
5005 if (!htab
->is_vxworks
5007 && local_got_refcounts
!= NULL
5008 && (!bfd_link_pic (info
)
5009 || is_branch_reloc (r_type
)))
5011 struct plt_entry
**local_plt
= (struct plt_entry
**)
5012 (local_got_refcounts
+ symtab_hdr
->sh_info
);
5013 char *local_got_tls_masks
= (char *)
5014 (local_plt
+ symtab_hdr
->sh_info
);
5015 if ((local_got_tls_masks
[r_symndx
] & PLT_IFUNC
) != 0)
5017 struct plt_entry
**ifunc
= local_plt
+ r_symndx
;
5019 struct plt_entry
*ent
;
5021 if (r_type
== R_PPC_PLTREL24
&& bfd_link_pic (info
))
5022 addend
= rel
->r_addend
;
5023 ent
= find_plt_ent (ifunc
, got2
, addend
);
5024 if (ent
->plt
.refcount
> 0)
5025 ent
->plt
.refcount
-= 1;
5032 case R_PPC_GOT_TLSLD16
:
5033 case R_PPC_GOT_TLSLD16_LO
:
5034 case R_PPC_GOT_TLSLD16_HI
:
5035 case R_PPC_GOT_TLSLD16_HA
:
5036 case R_PPC_GOT_TLSGD16
:
5037 case R_PPC_GOT_TLSGD16_LO
:
5038 case R_PPC_GOT_TLSGD16_HI
:
5039 case R_PPC_GOT_TLSGD16_HA
:
5040 case R_PPC_GOT_TPREL16
:
5041 case R_PPC_GOT_TPREL16_LO
:
5042 case R_PPC_GOT_TPREL16_HI
:
5043 case R_PPC_GOT_TPREL16_HA
:
5044 case R_PPC_GOT_DTPREL16
:
5045 case R_PPC_GOT_DTPREL16_LO
:
5046 case R_PPC_GOT_DTPREL16_HI
:
5047 case R_PPC_GOT_DTPREL16_HA
:
5049 case R_PPC_GOT16_LO
:
5050 case R_PPC_GOT16_HI
:
5051 case R_PPC_GOT16_HA
:
5054 if (h
->got
.refcount
> 0)
5056 if (!bfd_link_pic (info
))
5058 struct plt_entry
*ent
;
5060 ent
= find_plt_ent (&h
->plt
.plist
, NULL
, 0);
5061 if (ent
!= NULL
&& ent
->plt
.refcount
> 0)
5062 ent
->plt
.refcount
-= 1;
5065 else if (local_got_refcounts
!= NULL
)
5067 if (local_got_refcounts
[r_symndx
] > 0)
5068 local_got_refcounts
[r_symndx
]--;
5074 case R_PPC_REL14_BRTAKEN
:
5075 case R_PPC_REL14_BRNTAKEN
:
5077 if (h
== NULL
|| h
== htab
->elf
.hgot
)
5084 case R_PPC_ADDR16_LO
:
5085 case R_PPC_ADDR16_HI
:
5086 case R_PPC_ADDR16_HA
:
5088 case R_PPC_ADDR14_BRTAKEN
:
5089 case R_PPC_ADDR14_BRNTAKEN
:
5092 if (bfd_link_pic (info
))
5096 case R_PPC_PLTREL24
:
5097 case R_PPC_PLTREL32
:
5098 case R_PPC_PLT16_LO
:
5099 case R_PPC_PLT16_HI
:
5100 case R_PPC_PLT16_HA
:
5104 struct plt_entry
*ent
;
5106 if (r_type
== R_PPC_PLTREL24
&& bfd_link_pic (info
))
5107 addend
= rel
->r_addend
;
5108 ent
= find_plt_ent (&h
->plt
.plist
, got2
, addend
);
5109 if (ent
!= NULL
&& ent
->plt
.refcount
> 0)
5110 ent
->plt
.refcount
-= 1;
5121 /* Set plt output section type, htab->tls_get_addr, and call the
5122 generic ELF tls_setup function. */
5125 ppc_elf_tls_setup (bfd
*obfd
, struct bfd_link_info
*info
)
5127 struct ppc_elf_link_hash_table
*htab
;
5129 htab
= ppc_elf_hash_table (info
);
5130 htab
->tls_get_addr
= elf_link_hash_lookup (&htab
->elf
, "__tls_get_addr",
5131 FALSE
, FALSE
, TRUE
);
5132 if (htab
->plt_type
!= PLT_NEW
)
5133 htab
->params
->no_tls_get_addr_opt
= TRUE
;
5135 if (!htab
->params
->no_tls_get_addr_opt
)
5137 struct elf_link_hash_entry
*opt
, *tga
;
5138 opt
= elf_link_hash_lookup (&htab
->elf
, "__tls_get_addr_opt",
5139 FALSE
, FALSE
, TRUE
);
5141 && (opt
->root
.type
== bfd_link_hash_defined
5142 || opt
->root
.type
== bfd_link_hash_defweak
))
5144 /* If glibc supports an optimized __tls_get_addr call stub,
5145 signalled by the presence of __tls_get_addr_opt, and we'll
5146 be calling __tls_get_addr via a plt call stub, then
5147 make __tls_get_addr point to __tls_get_addr_opt. */
5148 tga
= htab
->tls_get_addr
;
5149 if (htab
->elf
.dynamic_sections_created
5151 && (tga
->type
== STT_FUNC
5153 && !(SYMBOL_CALLS_LOCAL (info
, tga
)
5154 || (ELF_ST_VISIBILITY (tga
->other
) != STV_DEFAULT
5155 && tga
->root
.type
== bfd_link_hash_undefweak
)))
5157 struct plt_entry
*ent
;
5158 for (ent
= tga
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
5159 if (ent
->plt
.refcount
> 0)
5163 tga
->root
.type
= bfd_link_hash_indirect
;
5164 tga
->root
.u
.i
.link
= &opt
->root
;
5165 ppc_elf_copy_indirect_symbol (info
, opt
, tga
);
5166 opt
->forced_local
= 0;
5167 if (opt
->dynindx
!= -1)
5169 /* Use __tls_get_addr_opt in dynamic relocations. */
5171 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
5173 if (!bfd_elf_link_record_dynamic_symbol (info
, opt
))
5176 htab
->tls_get_addr
= opt
;
5181 htab
->params
->no_tls_get_addr_opt
= TRUE
;
5183 if (htab
->plt_type
== PLT_NEW
5184 && htab
->plt
!= NULL
5185 && htab
->plt
->output_section
!= NULL
)
5187 elf_section_type (htab
->plt
->output_section
) = SHT_PROGBITS
;
5188 elf_section_flags (htab
->plt
->output_section
) = SHF_ALLOC
+ SHF_WRITE
;
5191 return _bfd_elf_tls_setup (obfd
, info
);
5194 /* Return TRUE iff REL is a branch reloc with a global symbol matching
5198 branch_reloc_hash_match (const bfd
*ibfd
,
5199 const Elf_Internal_Rela
*rel
,
5200 const struct elf_link_hash_entry
*hash
)
5202 Elf_Internal_Shdr
*symtab_hdr
= &elf_symtab_hdr (ibfd
);
5203 enum elf_ppc_reloc_type r_type
= ELF32_R_TYPE (rel
->r_info
);
5204 unsigned int r_symndx
= ELF32_R_SYM (rel
->r_info
);
5206 if (r_symndx
>= symtab_hdr
->sh_info
&& is_branch_reloc (r_type
))
5208 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (ibfd
);
5209 struct elf_link_hash_entry
*h
;
5211 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
5212 while (h
->root
.type
== bfd_link_hash_indirect
5213 || h
->root
.type
== bfd_link_hash_warning
)
5214 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5221 /* Run through all the TLS relocs looking for optimization
5225 ppc_elf_tls_optimize (bfd
*obfd ATTRIBUTE_UNUSED
,
5226 struct bfd_link_info
*info
)
5230 struct ppc_elf_link_hash_table
*htab
;
5233 if (!bfd_link_executable (info
))
5236 htab
= ppc_elf_hash_table (info
);
5240 /* Make two passes through the relocs. First time check that tls
5241 relocs involved in setting up a tls_get_addr call are indeed
5242 followed by such a call. If they are not, don't do any tls
5243 optimization. On the second pass twiddle tls_mask flags to
5244 notify relocate_section that optimization can be done, and
5245 adjust got and plt refcounts. */
5246 for (pass
= 0; pass
< 2; ++pass
)
5247 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
5249 Elf_Internal_Sym
*locsyms
= NULL
;
5250 Elf_Internal_Shdr
*symtab_hdr
= &elf_symtab_hdr (ibfd
);
5251 asection
*got2
= bfd_get_section_by_name (ibfd
, ".got2");
5253 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
5254 if (sec
->has_tls_reloc
&& !bfd_is_abs_section (sec
->output_section
))
5256 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
5257 int expecting_tls_get_addr
= 0;
5259 /* Read the relocations. */
5260 relstart
= _bfd_elf_link_read_relocs (ibfd
, sec
, NULL
, NULL
,
5262 if (relstart
== NULL
)
5265 relend
= relstart
+ sec
->reloc_count
;
5266 for (rel
= relstart
; rel
< relend
; rel
++)
5268 enum elf_ppc_reloc_type r_type
;
5269 unsigned long r_symndx
;
5270 struct elf_link_hash_entry
*h
= NULL
;
5272 char tls_set
, tls_clear
;
5273 bfd_boolean is_local
;
5274 bfd_signed_vma
*got_count
;
5276 r_symndx
= ELF32_R_SYM (rel
->r_info
);
5277 if (r_symndx
>= symtab_hdr
->sh_info
)
5279 struct elf_link_hash_entry
**sym_hashes
;
5281 sym_hashes
= elf_sym_hashes (ibfd
);
5282 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
5283 while (h
->root
.type
== bfd_link_hash_indirect
5284 || h
->root
.type
== bfd_link_hash_warning
)
5285 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5293 r_type
= ELF32_R_TYPE (rel
->r_info
);
5294 /* If this section has old-style __tls_get_addr calls
5295 without marker relocs, then check that each
5296 __tls_get_addr call reloc is preceded by a reloc
5297 that conceivably belongs to the __tls_get_addr arg
5298 setup insn. If we don't find matching arg setup
5299 relocs, don't do any tls optimization. */
5301 && sec
->has_tls_get_addr_call
5303 && h
== htab
->tls_get_addr
5304 && !expecting_tls_get_addr
5305 && is_branch_reloc (r_type
))
5307 info
->callbacks
->minfo ("%H __tls_get_addr lost arg, "
5308 "TLS optimization disabled\n",
5309 ibfd
, sec
, rel
->r_offset
);
5310 if (elf_section_data (sec
)->relocs
!= relstart
)
5315 expecting_tls_get_addr
= 0;
5318 case R_PPC_GOT_TLSLD16
:
5319 case R_PPC_GOT_TLSLD16_LO
:
5320 expecting_tls_get_addr
= 1;
5323 case R_PPC_GOT_TLSLD16_HI
:
5324 case R_PPC_GOT_TLSLD16_HA
:
5325 /* These relocs should never be against a symbol
5326 defined in a shared lib. Leave them alone if
5327 that turns out to be the case. */
5336 case R_PPC_GOT_TLSGD16
:
5337 case R_PPC_GOT_TLSGD16_LO
:
5338 expecting_tls_get_addr
= 1;
5341 case R_PPC_GOT_TLSGD16_HI
:
5342 case R_PPC_GOT_TLSGD16_HA
:
5348 tls_set
= TLS_TLS
| TLS_TPRELGD
;
5352 case R_PPC_GOT_TPREL16
:
5353 case R_PPC_GOT_TPREL16_LO
:
5354 case R_PPC_GOT_TPREL16_HI
:
5355 case R_PPC_GOT_TPREL16_HA
:
5360 tls_clear
= TLS_TPREL
;
5368 expecting_tls_get_addr
= 2;
5379 if (!expecting_tls_get_addr
5380 || (expecting_tls_get_addr
== 1
5381 && !sec
->has_tls_get_addr_call
))
5384 if (rel
+ 1 < relend
5385 && branch_reloc_hash_match (ibfd
, rel
+ 1,
5386 htab
->tls_get_addr
))
5389 /* Uh oh, we didn't find the expected call. We
5390 could just mark this symbol to exclude it
5391 from tls optimization but it's safer to skip
5392 the entire optimization. */
5393 info
->callbacks
->minfo (_("%H arg lost __tls_get_addr, "
5394 "TLS optimization disabled\n"),
5395 ibfd
, sec
, rel
->r_offset
);
5396 if (elf_section_data (sec
)->relocs
!= relstart
)
5401 if (expecting_tls_get_addr
)
5403 struct plt_entry
*ent
;
5406 if (bfd_link_pic (info
)
5407 && ELF32_R_TYPE (rel
[1].r_info
) == R_PPC_PLTREL24
)
5408 addend
= rel
[1].r_addend
;
5409 ent
= find_plt_ent (&htab
->tls_get_addr
->plt
.plist
,
5411 if (ent
!= NULL
&& ent
->plt
.refcount
> 0)
5412 ent
->plt
.refcount
-= 1;
5414 if (expecting_tls_get_addr
== 2)
5420 tls_mask
= &ppc_elf_hash_entry (h
)->tls_mask
;
5421 got_count
= &h
->got
.refcount
;
5425 bfd_signed_vma
*lgot_refs
;
5426 struct plt_entry
**local_plt
;
5429 if (locsyms
== NULL
)
5431 locsyms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
5432 if (locsyms
== NULL
)
5433 locsyms
= bfd_elf_get_elf_syms (ibfd
, symtab_hdr
,
5434 symtab_hdr
->sh_info
,
5435 0, NULL
, NULL
, NULL
);
5436 if (locsyms
== NULL
)
5438 if (elf_section_data (sec
)->relocs
!= relstart
)
5443 lgot_refs
= elf_local_got_refcounts (ibfd
);
5444 if (lgot_refs
== NULL
)
5446 local_plt
= (struct plt_entry
**)
5447 (lgot_refs
+ symtab_hdr
->sh_info
);
5448 lgot_masks
= (char *) (local_plt
+ symtab_hdr
->sh_info
);
5449 tls_mask
= &lgot_masks
[r_symndx
];
5450 got_count
= &lgot_refs
[r_symndx
];
5455 /* We managed to get rid of a got entry. */
5460 *tls_mask
|= tls_set
;
5461 *tls_mask
&= ~tls_clear
;
5464 if (elf_section_data (sec
)->relocs
!= relstart
)
5469 && (symtab_hdr
->contents
!= (unsigned char *) locsyms
))
5471 if (!info
->keep_memory
)
5474 symtab_hdr
->contents
= (unsigned char *) locsyms
;
5480 /* Return true if we have dynamic relocs that apply to read-only sections. */
5483 readonly_dynrelocs (struct elf_link_hash_entry
*h
)
5485 struct elf_dyn_relocs
*p
;
5487 for (p
= ppc_elf_hash_entry (h
)->dyn_relocs
; p
!= NULL
; p
= p
->next
)
5489 asection
*s
= p
->sec
->output_section
;
5492 && ((s
->flags
& (SEC_READONLY
| SEC_ALLOC
))
5493 == (SEC_READONLY
| SEC_ALLOC
)))
5499 /* Adjust a symbol defined by a dynamic object and referenced by a
5500 regular object. The current definition is in some section of the
5501 dynamic object, but we're not including those sections. We have to
5502 change the definition to something the rest of the link can
5506 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
5507 struct elf_link_hash_entry
*h
)
5509 struct ppc_elf_link_hash_table
*htab
;
5513 fprintf (stderr
, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5514 h
->root
.root
.string
);
5517 /* Make sure we know what is going on here. */
5518 htab
= ppc_elf_hash_table (info
);
5519 BFD_ASSERT (htab
->elf
.dynobj
!= NULL
5521 || h
->type
== STT_GNU_IFUNC
5522 || h
->u
.weakdef
!= NULL
5525 && !h
->def_regular
)));
5527 /* Deal with function syms. */
5528 if (h
->type
== STT_FUNC
5529 || h
->type
== STT_GNU_IFUNC
5532 /* Clear procedure linkage table information for any symbol that
5533 won't need a .plt entry. */
5534 struct plt_entry
*ent
;
5535 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
5536 if (ent
->plt
.refcount
> 0)
5539 || (h
->type
!= STT_GNU_IFUNC
5540 && (SYMBOL_CALLS_LOCAL (info
, h
)
5541 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
5542 && h
->root
.type
== bfd_link_hash_undefweak
))))
5544 /* A PLT entry is not required/allowed when:
5546 1. We are not using ld.so; because then the PLT entry
5547 can't be set up, so we can't use one. In this case,
5548 ppc_elf_adjust_dynamic_symbol won't even be called.
5550 2. GC has rendered the entry unused.
5552 3. We know for certain that a call to this symbol
5553 will go to this object, or will remain undefined. */
5554 h
->plt
.plist
= NULL
;
5556 h
->pointer_equality_needed
= 0;
5560 /* Taking a function's address in a read/write section
5561 doesn't require us to define the function symbol in the
5562 executable on a plt call stub. A dynamic reloc can
5564 if (h
->pointer_equality_needed
5565 && h
->type
!= STT_GNU_IFUNC
5566 && !htab
->is_vxworks
5567 && !ppc_elf_hash_entry (h
)->has_sda_refs
5568 && !readonly_dynrelocs (h
))
5570 h
->pointer_equality_needed
= 0;
5574 /* After adjust_dynamic_symbol, non_got_ref set in the
5575 non-shared case means that we have allocated space in
5576 .dynbss for the symbol and thus dyn_relocs for this
5577 symbol should be discarded.
5578 If we get here we know we are making a PLT entry for this
5579 symbol, and in an executable we'd normally resolve
5580 relocations against this symbol to the PLT entry. Allow
5581 dynamic relocs if the reference is weak, and the dynamic
5582 relocs will not cause text relocation. */
5583 else if (!h
->ref_regular_nonweak
5585 && h
->type
!= STT_GNU_IFUNC
5586 && !htab
->is_vxworks
5587 && !ppc_elf_hash_entry (h
)->has_sda_refs
5588 && !readonly_dynrelocs (h
))
5591 h
->protected_def
= 0;
5595 h
->plt
.plist
= NULL
;
5597 /* If this is a weak symbol, and there is a real definition, the
5598 processor independent code will have arranged for us to see the
5599 real definition first, and we can just use the same value. */
5600 if (h
->u
.weakdef
!= NULL
)
5602 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
5603 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
5604 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
5605 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
5606 if (ELIMINATE_COPY_RELOCS
)
5607 h
->non_got_ref
= h
->u
.weakdef
->non_got_ref
;
5611 /* This is a reference to a symbol defined by a dynamic object which
5612 is not a function. */
5614 /* If we are creating a shared library, we must presume that the
5615 only references to the symbol are via the global offset table.
5616 For such cases we need not do anything here; the relocations will
5617 be handled correctly by relocate_section. */
5618 if (bfd_link_pic (info
))
5620 h
->protected_def
= 0;
5624 /* If there are no references to this symbol that do not use the
5625 GOT, we don't need to generate a copy reloc. */
5626 if (!h
->non_got_ref
)
5628 h
->protected_def
= 0;
5632 /* Protected variables do not work with .dynbss. The copy in
5633 .dynbss won't be used by the shared library with the protected
5634 definition for the variable. Editing to PIC, or text relocations
5635 are preferable to an incorrect program. */
5636 if (h
->protected_def
)
5638 if (ELIMINATE_COPY_RELOCS
5639 && ppc_elf_hash_entry (h
)->has_addr16_ha
5640 && ppc_elf_hash_entry (h
)->has_addr16_lo
5641 && htab
->params
->pic_fixup
== 0
5642 && info
->disable_target_specific_optimizations
<= 1)
5643 htab
->params
->pic_fixup
= 1;
5648 /* If -z nocopyreloc was given, we won't generate them either. */
5649 if (info
->nocopyreloc
)
5655 /* If we didn't find any dynamic relocs in read-only sections, then
5656 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5657 We can't do this if there are any small data relocations. This
5658 doesn't work on VxWorks, where we can not have dynamic
5659 relocations (other than copy and jump slot relocations) in an
5661 if (ELIMINATE_COPY_RELOCS
5662 && !ppc_elf_hash_entry (h
)->has_sda_refs
5663 && !htab
->is_vxworks
5665 && !readonly_dynrelocs (h
))
5671 /* We must allocate the symbol in our .dynbss section, which will
5672 become part of the .bss section of the executable. There will be
5673 an entry for this symbol in the .dynsym section. The dynamic
5674 object will contain position independent code, so all references
5675 from the dynamic object to this symbol will go through the global
5676 offset table. The dynamic linker will use the .dynsym entry to
5677 determine the address it must put in the global offset table, so
5678 both the dynamic object and the regular object will refer to the
5679 same memory location for the variable.
5681 Of course, if the symbol is referenced using SDAREL relocs, we
5682 must instead allocate it in .sbss. */
5684 if (ppc_elf_hash_entry (h
)->has_sda_refs
)
5688 BFD_ASSERT (s
!= NULL
);
5690 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5691 copy the initial value out of the dynamic object and into the
5692 runtime process image. We need to remember the offset into the
5693 .rela.bss section we are going to use. */
5694 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && h
->size
!= 0)
5698 if (ppc_elf_hash_entry (h
)->has_sda_refs
)
5699 srel
= htab
->relsbss
;
5701 srel
= htab
->relbss
;
5702 BFD_ASSERT (srel
!= NULL
);
5703 srel
->size
+= sizeof (Elf32_External_Rela
);
5707 return _bfd_elf_adjust_dynamic_copy (info
, h
, s
);
5710 /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5711 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5712 specifying the addend on the plt relocation. For -fpic code, the sym
5713 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5714 xxxxxxxx.got2.plt_pic32.<callee>. */
5717 add_stub_sym (struct plt_entry
*ent
,
5718 struct elf_link_hash_entry
*h
,
5719 struct bfd_link_info
*info
)
5721 struct elf_link_hash_entry
*sh
;
5722 size_t len1
, len2
, len3
;
5725 struct ppc_elf_link_hash_table
*htab
= ppc_elf_hash_table (info
);
5727 if (bfd_link_pic (info
))
5728 stub
= ".plt_pic32.";
5730 stub
= ".plt_call32.";
5732 len1
= strlen (h
->root
.root
.string
);
5733 len2
= strlen (stub
);
5736 len3
= strlen (ent
->sec
->name
);
5737 name
= bfd_malloc (len1
+ len2
+ len3
+ 9);
5740 sprintf (name
, "%08x", (unsigned) ent
->addend
& 0xffffffff);
5742 memcpy (name
+ 8, ent
->sec
->name
, len3
);
5743 memcpy (name
+ 8 + len3
, stub
, len2
);
5744 memcpy (name
+ 8 + len3
+ len2
, h
->root
.root
.string
, len1
+ 1);
5745 sh
= elf_link_hash_lookup (&htab
->elf
, name
, TRUE
, FALSE
, FALSE
);
5748 if (sh
->root
.type
== bfd_link_hash_new
)
5750 sh
->root
.type
= bfd_link_hash_defined
;
5751 sh
->root
.u
.def
.section
= htab
->glink
;
5752 sh
->root
.u
.def
.value
= ent
->glink_offset
;
5753 sh
->ref_regular
= 1;
5754 sh
->def_regular
= 1;
5755 sh
->ref_regular_nonweak
= 1;
5756 sh
->forced_local
= 1;
5758 sh
->root
.linker_def
= 1;
5763 /* Allocate NEED contiguous space in .got, and return the offset.
5764 Handles allocation of the got header when crossing 32k. */
5767 allocate_got (struct ppc_elf_link_hash_table
*htab
, unsigned int need
)
5770 unsigned int max_before_header
;
5772 if (htab
->plt_type
== PLT_VXWORKS
)
5774 where
= htab
->got
->size
;
5775 htab
->got
->size
+= need
;
5779 max_before_header
= htab
->plt_type
== PLT_NEW
? 32768 : 32764;
5780 if (need
<= htab
->got_gap
)
5782 where
= max_before_header
- htab
->got_gap
;
5783 htab
->got_gap
-= need
;
5787 if (htab
->got
->size
+ need
> max_before_header
5788 && htab
->got
->size
<= max_before_header
)
5790 htab
->got_gap
= max_before_header
- htab
->got
->size
;
5791 htab
->got
->size
= max_before_header
+ htab
->got_header_size
;
5793 where
= htab
->got
->size
;
5794 htab
->got
->size
+= need
;
5800 /* Allocate space in associated reloc sections for dynamic relocs. */
5803 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
5805 struct bfd_link_info
*info
= inf
;
5806 struct ppc_elf_link_hash_entry
*eh
;
5807 struct ppc_elf_link_hash_table
*htab
;
5808 struct elf_dyn_relocs
*p
;
5810 if (h
->root
.type
== bfd_link_hash_indirect
)
5813 htab
= ppc_elf_hash_table (info
);
5814 if (htab
->elf
.dynamic_sections_created
5815 || h
->type
== STT_GNU_IFUNC
)
5817 struct plt_entry
*ent
;
5818 bfd_boolean doneone
= FALSE
;
5819 bfd_vma plt_offset
= 0, glink_offset
= 0;
5822 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
5823 if (ent
->plt
.refcount
> 0)
5825 /* Make sure this symbol is output as a dynamic symbol. */
5826 if (h
->dynindx
== -1
5829 && htab
->elf
.dynamic_sections_created
)
5831 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
5835 dyn
= htab
->elf
.dynamic_sections_created
;
5836 if (bfd_link_pic (info
)
5837 || h
->type
== STT_GNU_IFUNC
5838 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, 0, h
))
5840 asection
*s
= htab
->plt
;
5841 if (!dyn
|| h
->dynindx
== -1)
5844 if (htab
->plt_type
== PLT_NEW
|| !dyn
|| h
->dynindx
== -1)
5848 plt_offset
= s
->size
;
5851 ent
->plt
.offset
= plt_offset
;
5854 if (!doneone
|| bfd_link_pic (info
))
5856 glink_offset
= s
->size
;
5857 s
->size
+= GLINK_ENTRY_SIZE
;
5858 if (h
== htab
->tls_get_addr
5859 && !htab
->params
->no_tls_get_addr_opt
)
5860 s
->size
+= TLS_GET_ADDR_GLINK_SIZE
- GLINK_ENTRY_SIZE
;
5863 && !bfd_link_pic (info
)
5867 h
->root
.u
.def
.section
= s
;
5868 h
->root
.u
.def
.value
= glink_offset
;
5870 ent
->glink_offset
= glink_offset
;
5872 if (htab
->params
->emit_stub_syms
5873 && !add_stub_sym (ent
, h
, info
))
5880 /* If this is the first .plt entry, make room
5881 for the special first entry. */
5883 s
->size
+= htab
->plt_initial_entry_size
;
5885 /* The PowerPC PLT is actually composed of two
5886 parts, the first part is 2 words (for a load
5887 and a jump), and then there is a remaining
5888 word available at the end. */
5889 plt_offset
= (htab
->plt_initial_entry_size
5890 + (htab
->plt_slot_size
5892 - htab
->plt_initial_entry_size
)
5893 / htab
->plt_entry_size
)));
5895 /* If this symbol is not defined in a regular
5896 file, and we are not generating a shared
5897 library, then set the symbol to this location
5898 in the .plt. This is to avoid text
5899 relocations, and is required to make
5900 function pointers compare as equal between
5901 the normal executable and the shared library. */
5902 if (! bfd_link_pic (info
)
5906 h
->root
.u
.def
.section
= s
;
5907 h
->root
.u
.def
.value
= plt_offset
;
5910 /* Make room for this entry. */
5911 s
->size
+= htab
->plt_entry_size
;
5912 /* After the 8192nd entry, room for two entries
5914 if (htab
->plt_type
== PLT_OLD
5915 && (s
->size
- htab
->plt_initial_entry_size
)
5916 / htab
->plt_entry_size
5917 > PLT_NUM_SINGLE_ENTRIES
)
5918 s
->size
+= htab
->plt_entry_size
;
5920 ent
->plt
.offset
= plt_offset
;
5923 /* We also need to make an entry in the .rela.plt section. */
5926 if (!htab
->elf
.dynamic_sections_created
5927 || h
->dynindx
== -1)
5928 htab
->reliplt
->size
+= sizeof (Elf32_External_Rela
);
5931 htab
->relplt
->size
+= sizeof (Elf32_External_Rela
);
5933 if (htab
->plt_type
== PLT_VXWORKS
)
5935 /* Allocate space for the unloaded relocations. */
5936 if (!bfd_link_pic (info
)
5937 && htab
->elf
.dynamic_sections_created
)
5940 == (bfd_vma
) htab
->plt_initial_entry_size
)
5942 htab
->srelplt2
->size
5943 += (sizeof (Elf32_External_Rela
)
5944 * VXWORKS_PLTRESOLVE_RELOCS
);
5947 htab
->srelplt2
->size
5948 += (sizeof (Elf32_External_Rela
)
5949 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS
);
5952 /* Every PLT entry has an associated GOT entry in
5954 htab
->sgotplt
->size
+= 4;
5961 ent
->plt
.offset
= (bfd_vma
) -1;
5964 ent
->plt
.offset
= (bfd_vma
) -1;
5968 h
->plt
.plist
= NULL
;
5974 h
->plt
.plist
= NULL
;
5978 eh
= (struct ppc_elf_link_hash_entry
*) h
;
5979 if (eh
->elf
.got
.refcount
> 0
5980 || (ELIMINATE_COPY_RELOCS
5981 && !eh
->elf
.def_regular
5982 && eh
->elf
.protected_def
5983 && eh
->has_addr16_ha
5984 && eh
->has_addr16_lo
5985 && htab
->params
->pic_fixup
> 0))
5990 /* Make sure this symbol is output as a dynamic symbol. */
5991 if (eh
->elf
.dynindx
== -1
5992 && !eh
->elf
.forced_local
5993 && eh
->elf
.type
!= STT_GNU_IFUNC
5994 && htab
->elf
.dynamic_sections_created
)
5996 if (!bfd_elf_link_record_dynamic_symbol (info
, &eh
->elf
))
6001 if ((eh
->tls_mask
& TLS_TLS
) != 0)
6003 if ((eh
->tls_mask
& TLS_LD
) != 0)
6005 if (!eh
->elf
.def_dynamic
)
6006 /* We'll just use htab->tlsld_got.offset. This should
6007 always be the case. It's a little odd if we have
6008 a local dynamic reloc against a non-local symbol. */
6009 htab
->tlsld_got
.refcount
+= 1;
6013 if ((eh
->tls_mask
& TLS_GD
) != 0)
6015 if ((eh
->tls_mask
& (TLS_TPREL
| TLS_TPRELGD
)) != 0)
6017 if ((eh
->tls_mask
& TLS_DTPREL
) != 0)
6023 eh
->elf
.got
.offset
= (bfd_vma
) -1;
6026 eh
->elf
.got
.offset
= allocate_got (htab
, need
);
6027 dyn
= htab
->elf
.dynamic_sections_created
;
6028 if ((bfd_link_pic (info
)
6029 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, 0, &eh
->elf
))
6030 && (ELF_ST_VISIBILITY (eh
->elf
.other
) == STV_DEFAULT
6031 || eh
->elf
.root
.type
!= bfd_link_hash_undefweak
))
6033 asection
*rsec
= htab
->relgot
;
6035 if (eh
->elf
.type
== STT_GNU_IFUNC
)
6036 rsec
= htab
->reliplt
;
6037 /* All the entries we allocated need relocs.
6038 Except LD only needs one. */
6039 if ((eh
->tls_mask
& TLS_LD
) != 0
6040 && eh
->elf
.def_dynamic
)
6042 rsec
->size
+= need
* (sizeof (Elf32_External_Rela
) / 4);
6047 eh
->elf
.got
.offset
= (bfd_vma
) -1;
6049 if (eh
->dyn_relocs
== NULL
6050 || !htab
->elf
.dynamic_sections_created
)
6053 /* In the shared -Bsymbolic case, discard space allocated for
6054 dynamic pc-relative relocs against symbols which turn out to be
6055 defined in regular objects. For the normal shared case, discard
6056 space for relocs that have become local due to symbol visibility
6059 if (bfd_link_pic (info
))
6061 /* Relocs that use pc_count are those that appear on a call insn,
6062 or certain REL relocs (see must_be_dyn_reloc) that can be
6063 generated via assembly. We want calls to protected symbols to
6064 resolve directly to the function rather than going via the plt.
6065 If people want function pointer comparisons to work as expected
6066 then they should avoid writing weird assembly. */
6067 if (SYMBOL_CALLS_LOCAL (info
, h
))
6069 struct elf_dyn_relocs
**pp
;
6071 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
6073 p
->count
-= p
->pc_count
;
6082 if (htab
->is_vxworks
)
6084 struct elf_dyn_relocs
**pp
;
6086 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
6088 if (strcmp (p
->sec
->output_section
->name
, ".tls_vars") == 0)
6095 /* Discard relocs on undefined symbols that must be local. */
6096 if (eh
->dyn_relocs
!= NULL
6097 && h
->root
.type
== bfd_link_hash_undefined
6098 && (ELF_ST_VISIBILITY (h
->other
) == STV_HIDDEN
6099 || ELF_ST_VISIBILITY (h
->other
) == STV_INTERNAL
))
6100 eh
->dyn_relocs
= NULL
;
6102 /* Also discard relocs on undefined weak syms with non-default
6104 if (eh
->dyn_relocs
!= NULL
6105 && h
->root
.type
== bfd_link_hash_undefweak
)
6107 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
6108 eh
->dyn_relocs
= NULL
;
6110 /* Make sure undefined weak symbols are output as a dynamic
6112 else if (h
->dynindx
== -1
6116 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
6121 else if (ELIMINATE_COPY_RELOCS
)
6123 /* For the non-shared case, discard space for relocs against
6124 symbols which turn out to need copy relocs or are not
6129 && !(h
->protected_def
6130 && eh
->has_addr16_ha
6131 && eh
->has_addr16_lo
6132 && htab
->params
->pic_fixup
> 0))
6134 /* Make sure this symbol is output as a dynamic symbol.
6135 Undefined weak syms won't yet be marked as dynamic. */
6136 if (h
->dynindx
== -1
6137 && !h
->forced_local
)
6139 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
6143 /* If that succeeded, we know we'll be keeping all the
6145 if (h
->dynindx
!= -1)
6149 eh
->dyn_relocs
= NULL
;
6154 /* Finally, allocate space. */
6155 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
6157 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
6158 if (eh
->elf
.type
== STT_GNU_IFUNC
)
6159 sreloc
= htab
->reliplt
;
6160 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
6166 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
6167 read-only sections. */
6170 maybe_set_textrel (struct elf_link_hash_entry
*h
, void *info
)
6172 if (h
->root
.type
== bfd_link_hash_indirect
)
6175 if (readonly_dynrelocs (h
))
6177 ((struct bfd_link_info
*) info
)->flags
|= DF_TEXTREL
;
6179 /* Not an error, just cut short the traversal. */
6185 static const unsigned char glink_eh_frame_cie
[] =
6187 0, 0, 0, 16, /* length. */
6188 0, 0, 0, 0, /* id. */
6189 1, /* CIE version. */
6190 'z', 'R', 0, /* Augmentation string. */
6191 4, /* Code alignment. */
6192 0x7c, /* Data alignment. */
6194 1, /* Augmentation size. */
6195 DW_EH_PE_pcrel
| DW_EH_PE_sdata4
, /* FDE encoding. */
6196 DW_CFA_def_cfa
, 1, 0 /* def_cfa: r1 offset 0. */
6199 /* Set the sizes of the dynamic sections. */
6202 ppc_elf_size_dynamic_sections (bfd
*output_bfd
,
6203 struct bfd_link_info
*info
)
6205 struct ppc_elf_link_hash_table
*htab
;
6211 fprintf (stderr
, "ppc_elf_size_dynamic_sections called\n");
6214 htab
= ppc_elf_hash_table (info
);
6215 BFD_ASSERT (htab
->elf
.dynobj
!= NULL
);
6217 if (elf_hash_table (info
)->dynamic_sections_created
)
6219 /* Set the contents of the .interp section to the interpreter. */
6220 if (bfd_link_executable (info
) && !info
->nointerp
)
6222 s
= bfd_get_linker_section (htab
->elf
.dynobj
, ".interp");
6223 BFD_ASSERT (s
!= NULL
);
6224 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
6225 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
6229 if (htab
->plt_type
== PLT_OLD
)
6230 htab
->got_header_size
= 16;
6231 else if (htab
->plt_type
== PLT_NEW
)
6232 htab
->got_header_size
= 12;
6234 /* Set up .got offsets for local syms, and space for local dynamic
6236 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
6238 bfd_signed_vma
*local_got
;
6239 bfd_signed_vma
*end_local_got
;
6240 struct plt_entry
**local_plt
;
6241 struct plt_entry
**end_local_plt
;
6243 bfd_size_type locsymcount
;
6244 Elf_Internal_Shdr
*symtab_hdr
;
6246 if (!is_ppc_elf (ibfd
))
6249 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
6251 struct ppc_dyn_relocs
*p
;
6253 for (p
= ((struct ppc_dyn_relocs
*)
6254 elf_section_data (s
)->local_dynrel
);
6258 if (!bfd_is_abs_section (p
->sec
)
6259 && bfd_is_abs_section (p
->sec
->output_section
))
6261 /* Input section has been discarded, either because
6262 it is a copy of a linkonce section or due to
6263 linker script /DISCARD/, so we'll be discarding
6266 else if (htab
->is_vxworks
6267 && strcmp (p
->sec
->output_section
->name
,
6270 /* Relocations in vxworks .tls_vars sections are
6271 handled specially by the loader. */
6273 else if (p
->count
!= 0)
6275 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
6277 sreloc
= htab
->reliplt
;
6278 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
6279 if ((p
->sec
->output_section
->flags
6280 & (SEC_READONLY
| SEC_ALLOC
))
6281 == (SEC_READONLY
| SEC_ALLOC
))
6282 info
->flags
|= DF_TEXTREL
;
6287 local_got
= elf_local_got_refcounts (ibfd
);
6291 symtab_hdr
= &elf_symtab_hdr (ibfd
);
6292 locsymcount
= symtab_hdr
->sh_info
;
6293 end_local_got
= local_got
+ locsymcount
;
6294 local_plt
= (struct plt_entry
**) end_local_got
;
6295 end_local_plt
= local_plt
+ locsymcount
;
6296 lgot_masks
= (char *) end_local_plt
;
6298 for (; local_got
< end_local_got
; ++local_got
, ++lgot_masks
)
6301 unsigned int need
= 0;
6302 if ((*lgot_masks
& TLS_TLS
) != 0)
6304 if ((*lgot_masks
& TLS_GD
) != 0)
6306 if ((*lgot_masks
& TLS_LD
) != 0)
6307 htab
->tlsld_got
.refcount
+= 1;
6308 if ((*lgot_masks
& (TLS_TPREL
| TLS_TPRELGD
)) != 0)
6310 if ((*lgot_masks
& TLS_DTPREL
) != 0)
6316 *local_got
= (bfd_vma
) -1;
6319 *local_got
= allocate_got (htab
, need
);
6320 if (bfd_link_pic (info
))
6322 asection
*srel
= htab
->relgot
;
6323 if ((*lgot_masks
& PLT_IFUNC
) != 0)
6324 srel
= htab
->reliplt
;
6325 srel
->size
+= need
* (sizeof (Elf32_External_Rela
) / 4);
6330 *local_got
= (bfd_vma
) -1;
6332 if (htab
->is_vxworks
)
6335 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6336 for (; local_plt
< end_local_plt
; ++local_plt
)
6338 struct plt_entry
*ent
;
6339 bfd_boolean doneone
= FALSE
;
6340 bfd_vma plt_offset
= 0, glink_offset
= 0;
6342 for (ent
= *local_plt
; ent
!= NULL
; ent
= ent
->next
)
6343 if (ent
->plt
.refcount
> 0)
6349 plt_offset
= s
->size
;
6352 ent
->plt
.offset
= plt_offset
;
6355 if (!doneone
|| bfd_link_pic (info
))
6357 glink_offset
= s
->size
;
6358 s
->size
+= GLINK_ENTRY_SIZE
;
6360 ent
->glink_offset
= glink_offset
;
6364 htab
->reliplt
->size
+= sizeof (Elf32_External_Rela
);
6369 ent
->plt
.offset
= (bfd_vma
) -1;
6373 /* Allocate space for global sym dynamic relocs. */
6374 elf_link_hash_traverse (elf_hash_table (info
), allocate_dynrelocs
, info
);
6376 if (htab
->tlsld_got
.refcount
> 0)
6378 htab
->tlsld_got
.offset
= allocate_got (htab
, 8);
6379 if (bfd_link_pic (info
))
6380 htab
->relgot
->size
+= sizeof (Elf32_External_Rela
);
6383 htab
->tlsld_got
.offset
= (bfd_vma
) -1;
6385 if (htab
->got
!= NULL
&& htab
->plt_type
!= PLT_VXWORKS
)
6387 unsigned int g_o_t
= 32768;
6389 /* If we haven't allocated the header, do so now. When we get here,
6390 for old plt/got the got size will be 0 to 32764 (not allocated),
6391 or 32780 to 65536 (header allocated). For new plt/got, the
6392 corresponding ranges are 0 to 32768 and 32780 to 65536. */
6393 if (htab
->got
->size
<= 32768)
6395 g_o_t
= htab
->got
->size
;
6396 if (htab
->plt_type
== PLT_OLD
)
6398 htab
->got
->size
+= htab
->got_header_size
;
6401 htab
->elf
.hgot
->root
.u
.def
.value
= g_o_t
;
6403 if (bfd_link_pic (info
))
6405 struct elf_link_hash_entry
*sda
= htab
->sdata
[0].sym
;
6407 sda
->root
.u
.def
.section
= htab
->elf
.hgot
->root
.u
.def
.section
;
6408 sda
->root
.u
.def
.value
= htab
->elf
.hgot
->root
.u
.def
.value
;
6410 if (info
->emitrelocations
)
6412 struct elf_link_hash_entry
*sda
= htab
->sdata
[0].sym
;
6414 if (sda
!= NULL
&& sda
->ref_regular
)
6415 sda
->root
.u
.def
.section
->flags
|= SEC_KEEP
;
6416 sda
= htab
->sdata
[1].sym
;
6417 if (sda
!= NULL
&& sda
->ref_regular
)
6418 sda
->root
.u
.def
.section
->flags
|= SEC_KEEP
;
6421 if (htab
->glink
!= NULL
6422 && htab
->glink
->size
!= 0
6423 && htab
->elf
.dynamic_sections_created
)
6425 htab
->glink_pltresolve
= htab
->glink
->size
;
6426 /* Space for the branch table. */
6427 htab
->glink
->size
+= htab
->glink
->size
/ (GLINK_ENTRY_SIZE
/ 4) - 4;
6428 /* Pad out to align the start of PLTresolve. */
6429 htab
->glink
->size
+= -htab
->glink
->size
& (htab
->params
->ppc476_workaround
6431 htab
->glink
->size
+= GLINK_PLTRESOLVE
;
6433 if (htab
->params
->emit_stub_syms
)
6435 struct elf_link_hash_entry
*sh
;
6436 sh
= elf_link_hash_lookup (&htab
->elf
, "__glink",
6437 TRUE
, FALSE
, FALSE
);
6440 if (sh
->root
.type
== bfd_link_hash_new
)
6442 sh
->root
.type
= bfd_link_hash_defined
;
6443 sh
->root
.u
.def
.section
= htab
->glink
;
6444 sh
->root
.u
.def
.value
= htab
->glink_pltresolve
;
6445 sh
->ref_regular
= 1;
6446 sh
->def_regular
= 1;
6447 sh
->ref_regular_nonweak
= 1;
6448 sh
->forced_local
= 1;
6450 sh
->root
.linker_def
= 1;
6452 sh
= elf_link_hash_lookup (&htab
->elf
, "__glink_PLTresolve",
6453 TRUE
, FALSE
, FALSE
);
6456 if (sh
->root
.type
== bfd_link_hash_new
)
6458 sh
->root
.type
= bfd_link_hash_defined
;
6459 sh
->root
.u
.def
.section
= htab
->glink
;
6460 sh
->root
.u
.def
.value
= htab
->glink
->size
- GLINK_PLTRESOLVE
;
6461 sh
->ref_regular
= 1;
6462 sh
->def_regular
= 1;
6463 sh
->ref_regular_nonweak
= 1;
6464 sh
->forced_local
= 1;
6466 sh
->root
.linker_def
= 1;
6471 if (htab
->glink
!= NULL
6472 && htab
->glink
->size
!= 0
6473 && htab
->glink_eh_frame
!= NULL
6474 && !bfd_is_abs_section (htab
->glink_eh_frame
->output_section
)
6475 && _bfd_elf_eh_frame_present (info
))
6477 s
= htab
->glink_eh_frame
;
6478 s
->size
= sizeof (glink_eh_frame_cie
) + 20;
6479 if (bfd_link_pic (info
))
6482 if (htab
->glink
->size
- GLINK_PLTRESOLVE
+ 8 >= 256)
6487 /* We've now determined the sizes of the various dynamic sections.
6488 Allocate memory for them. */
6490 for (s
= htab
->elf
.dynobj
->sections
; s
!= NULL
; s
= s
->next
)
6492 bfd_boolean strip_section
= TRUE
;
6494 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
6500 /* We'd like to strip these sections if they aren't needed, but if
6501 we've exported dynamic symbols from them we must leave them.
6502 It's too late to tell BFD to get rid of the symbols. */
6503 if (htab
->elf
.hplt
!= NULL
)
6504 strip_section
= FALSE
;
6505 /* Strip this section if we don't need it; see the
6508 else if (s
== htab
->iplt
6510 || s
== htab
->glink_eh_frame
6511 || s
== htab
->sgotplt
6513 || s
== htab
->dynbss
6514 || s
== htab
->dynsbss
)
6516 /* Strip these too. */
6518 else if (s
== htab
->sdata
[0].section
6519 || s
== htab
->sdata
[1].section
)
6521 strip_section
= (s
->flags
& SEC_KEEP
) == 0;
6523 else if (CONST_STRNEQ (bfd_get_section_name (htab
->elf
.dynobj
, s
),
6528 /* Remember whether there are any relocation sections. */
6531 /* We use the reloc_count field as a counter if we need
6532 to copy relocs into the output file. */
6538 /* It's not one of our sections, so don't allocate space. */
6542 if (s
->size
== 0 && strip_section
)
6544 /* If we don't need this section, strip it from the
6545 output file. This is mostly to handle .rela.bss and
6546 .rela.plt. We must create both sections in
6547 create_dynamic_sections, because they must be created
6548 before the linker maps input sections to output
6549 sections. The linker does that before
6550 adjust_dynamic_symbol is called, and it is that
6551 function which decides whether anything needs to go
6552 into these sections. */
6553 s
->flags
|= SEC_EXCLUDE
;
6557 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
6560 /* Allocate memory for the section contents. */
6561 s
->contents
= bfd_zalloc (htab
->elf
.dynobj
, s
->size
);
6562 if (s
->contents
== NULL
)
6566 if (htab
->elf
.dynamic_sections_created
)
6568 /* Add some entries to the .dynamic section. We fill in the
6569 values later, in ppc_elf_finish_dynamic_sections, but we
6570 must add the entries now so that we get the correct size for
6571 the .dynamic section. The DT_DEBUG entry is filled in by the
6572 dynamic linker and used by the debugger. */
6573 #define add_dynamic_entry(TAG, VAL) \
6574 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6576 if (bfd_link_executable (info
))
6578 if (!add_dynamic_entry (DT_DEBUG
, 0))
6582 if (htab
->plt
!= NULL
&& htab
->plt
->size
!= 0)
6584 if (!add_dynamic_entry (DT_PLTGOT
, 0)
6585 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
6586 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
6587 || !add_dynamic_entry (DT_JMPREL
, 0))
6591 if (htab
->plt_type
== PLT_NEW
6592 && htab
->glink
!= NULL
6593 && htab
->glink
->size
!= 0)
6595 if (!add_dynamic_entry (DT_PPC_GOT
, 0))
6597 if (!htab
->params
->no_tls_get_addr_opt
6598 && htab
->tls_get_addr
!= NULL
6599 && htab
->tls_get_addr
->plt
.plist
!= NULL
6600 && !add_dynamic_entry (DT_PPC_OPT
, PPC_OPT_TLS
))
6606 if (!add_dynamic_entry (DT_RELA
, 0)
6607 || !add_dynamic_entry (DT_RELASZ
, 0)
6608 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
6612 /* If any dynamic relocs apply to a read-only section, then we
6613 need a DT_TEXTREL entry. */
6614 if ((info
->flags
& DF_TEXTREL
) == 0)
6615 elf_link_hash_traverse (elf_hash_table (info
), maybe_set_textrel
,
6618 if ((info
->flags
& DF_TEXTREL
) != 0)
6620 if (!add_dynamic_entry (DT_TEXTREL
, 0))
6623 if (htab
->is_vxworks
6624 && !elf_vxworks_add_dynamic_entries (output_bfd
, info
))
6627 #undef add_dynamic_entry
6629 if (htab
->glink_eh_frame
!= NULL
6630 && htab
->glink_eh_frame
->contents
!= NULL
)
6632 unsigned char *p
= htab
->glink_eh_frame
->contents
;
6635 memcpy (p
, glink_eh_frame_cie
, sizeof (glink_eh_frame_cie
));
6636 /* CIE length (rewrite in case little-endian). */
6637 bfd_put_32 (htab
->elf
.dynobj
, sizeof (glink_eh_frame_cie
) - 4, p
);
6638 p
+= sizeof (glink_eh_frame_cie
);
6640 val
= htab
->glink_eh_frame
->size
- 4 - sizeof (glink_eh_frame_cie
);
6641 bfd_put_32 (htab
->elf
.dynobj
, val
, p
);
6644 val
= p
- htab
->glink_eh_frame
->contents
;
6645 bfd_put_32 (htab
->elf
.dynobj
, val
, p
);
6647 /* Offset to .glink. Set later. */
6650 bfd_put_32 (htab
->elf
.dynobj
, htab
->glink
->size
, p
);
6655 if (bfd_link_pic (info
)
6656 && htab
->elf
.dynamic_sections_created
)
6658 bfd_vma adv
= (htab
->glink
->size
- GLINK_PLTRESOLVE
+ 8) >> 2;
6660 *p
++ = DW_CFA_advance_loc
+ adv
;
6663 *p
++ = DW_CFA_advance_loc1
;
6666 else if (adv
< 65536)
6668 *p
++ = DW_CFA_advance_loc2
;
6669 bfd_put_16 (htab
->elf
.dynobj
, adv
, p
);
6674 *p
++ = DW_CFA_advance_loc4
;
6675 bfd_put_32 (htab
->elf
.dynobj
, adv
, p
);
6678 *p
++ = DW_CFA_register
;
6681 *p
++ = DW_CFA_advance_loc
+ 4;
6682 *p
++ = DW_CFA_restore_extended
;
6685 BFD_ASSERT ((bfd_vma
) ((p
+ 3 - htab
->glink_eh_frame
->contents
) & -4)
6686 == htab
->glink_eh_frame
->size
);
6692 /* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
6693 if it looks like nothing is using them. */
6696 maybe_strip_sdasym (bfd
*output_bfd
, elf_linker_section_t
*lsect
)
6698 struct elf_link_hash_entry
*sda
= lsect
->sym
;
6700 if (sda
!= NULL
&& !sda
->ref_regular
&& sda
->dynindx
== -1)
6704 s
= bfd_get_section_by_name (output_bfd
, lsect
->name
);
6705 if (s
== NULL
|| bfd_section_removed_from_list (output_bfd
, s
))
6707 s
= bfd_get_section_by_name (output_bfd
, lsect
->bss_name
);
6708 if (s
== NULL
|| bfd_section_removed_from_list (output_bfd
, s
))
6710 sda
->def_regular
= 0;
6711 /* This is somewhat magic. See elf_link_output_extsym. */
6712 sda
->ref_dynamic
= 1;
6713 sda
->forced_local
= 0;
6720 ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info
*info
)
6722 struct ppc_elf_link_hash_table
*htab
= ppc_elf_hash_table (info
);
6726 maybe_strip_sdasym (info
->output_bfd
, &htab
->sdata
[0]);
6727 maybe_strip_sdasym (info
->output_bfd
, &htab
->sdata
[1]);
6732 /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6735 ppc_elf_hash_symbol (struct elf_link_hash_entry
*h
)
6737 if (h
->plt
.plist
!= NULL
6739 && (!h
->pointer_equality_needed
6740 || !h
->ref_regular_nonweak
))
6743 return _bfd_elf_hash_symbol (h
);
6746 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6748 /* Relaxation trampolines. r12 is available for clobbering (r11, is
6749 used for some functions that are allowed to break the ABI). */
6750 static const int shared_stub_entry
[] =
6752 0x7c0802a6, /* mflr 0 */
6753 0x429f0005, /* bcl 20, 31, .Lxxx */
6754 0x7d8802a6, /* mflr 12 */
6755 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
6756 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
6757 0x7c0803a6, /* mtlr 0 */
6758 0x7d8903a6, /* mtctr 12 */
6759 0x4e800420, /* bctr */
6762 static const int stub_entry
[] =
6764 0x3d800000, /* lis 12,xxx@ha */
6765 0x398c0000, /* addi 12,12,xxx@l */
6766 0x7d8903a6, /* mtctr 12 */
6767 0x4e800420, /* bctr */
6770 struct ppc_elf_relax_info
6772 unsigned int workaround_size
;
6773 unsigned int picfixup_size
;
6776 /* This function implements long branch trampolines, and the ppc476
6777 icache bug workaround. Any section needing trampolines or patch
6778 space for the workaround has its size extended so that we can
6779 add trampolines at the end of the section. */
6782 ppc_elf_relax_section (bfd
*abfd
,
6784 struct bfd_link_info
*link_info
,
6787 struct one_branch_fixup
6789 struct one_branch_fixup
*next
;
6791 /* Final link, can use the symbol offset. For a
6792 relocatable link we use the symbol's index. */
6797 Elf_Internal_Shdr
*symtab_hdr
;
6798 bfd_byte
*contents
= NULL
;
6799 Elf_Internal_Sym
*isymbuf
= NULL
;
6800 Elf_Internal_Rela
*internal_relocs
= NULL
;
6801 Elf_Internal_Rela
*irel
, *irelend
= NULL
;
6802 struct one_branch_fixup
*branch_fixups
= NULL
;
6803 struct ppc_elf_relax_info
*relax_info
= NULL
;
6804 unsigned changes
= 0;
6805 bfd_boolean workaround_change
;
6806 struct ppc_elf_link_hash_table
*htab
;
6807 bfd_size_type trampbase
, trampoff
, newsize
, picfixup_size
;
6809 bfd_boolean maybe_pasted
;
6813 /* No need to do anything with non-alloc or non-code sections. */
6814 if ((isec
->flags
& SEC_ALLOC
) == 0
6815 || (isec
->flags
& SEC_CODE
) == 0
6816 || (isec
->flags
& SEC_LINKER_CREATED
) != 0
6820 /* We cannot represent the required PIC relocs in the output, so don't
6821 do anything. The linker doesn't support mixing -shared and -r
6823 if (bfd_link_relocatable (link_info
) && bfd_link_pic (link_info
))
6826 htab
= ppc_elf_hash_table (link_info
);
6830 isec
->size
= (isec
->size
+ 3) & -4;
6831 if (isec
->rawsize
== 0)
6832 isec
->rawsize
= isec
->size
;
6833 trampbase
= isec
->size
;
6835 BFD_ASSERT (isec
->sec_info_type
== SEC_INFO_TYPE_NONE
6836 || isec
->sec_info_type
== SEC_INFO_TYPE_TARGET
);
6837 isec
->sec_info_type
= SEC_INFO_TYPE_TARGET
;
6839 if (htab
->params
->ppc476_workaround
6840 || htab
->params
->pic_fixup
> 0)
6842 if (elf_section_data (isec
)->sec_info
== NULL
)
6844 elf_section_data (isec
)->sec_info
6845 = bfd_zalloc (abfd
, sizeof (struct ppc_elf_relax_info
));
6846 if (elf_section_data (isec
)->sec_info
== NULL
)
6849 relax_info
= elf_section_data (isec
)->sec_info
;
6850 trampbase
-= relax_info
->workaround_size
;
6853 maybe_pasted
= (strcmp (isec
->output_section
->name
, ".init") == 0
6854 || strcmp (isec
->output_section
->name
, ".fini") == 0);
6855 /* Space for a branch around any trampolines. */
6856 trampoff
= trampbase
;
6857 if (maybe_pasted
&& trampbase
== isec
->rawsize
)
6860 symtab_hdr
= &elf_symtab_hdr (abfd
);
6862 if (htab
->params
->branch_trampolines
6863 || htab
->params
->pic_fixup
> 0)
6865 /* Get a copy of the native relocations. */
6866 if (isec
->reloc_count
!= 0)
6868 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, isec
, NULL
, NULL
,
6869 link_info
->keep_memory
);
6870 if (internal_relocs
== NULL
)
6874 got2
= bfd_get_section_by_name (abfd
, ".got2");
6876 irelend
= internal_relocs
+ isec
->reloc_count
;
6877 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
6879 unsigned long r_type
= ELF32_R_TYPE (irel
->r_info
);
6882 struct one_branch_fixup
*f
;
6883 size_t insn_offset
= 0;
6884 bfd_vma max_branch_offset
= 0, val
;
6887 struct elf_link_hash_entry
*h
;
6888 struct plt_entry
**plist
;
6889 unsigned char sym_type
;
6894 case R_PPC_LOCAL24PC
:
6895 case R_PPC_PLTREL24
:
6896 max_branch_offset
= 1 << 25;
6900 case R_PPC_REL14_BRTAKEN
:
6901 case R_PPC_REL14_BRNTAKEN
:
6902 max_branch_offset
= 1 << 15;
6905 case R_PPC_ADDR16_HA
:
6906 if (htab
->params
->pic_fixup
> 0)
6914 /* Get the value of the symbol referred to by the reloc. */
6916 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
6918 /* A local symbol. */
6919 Elf_Internal_Sym
*isym
;
6921 /* Read this BFD's local symbols. */
6922 if (isymbuf
== NULL
)
6924 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
6925 if (isymbuf
== NULL
)
6926 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
6927 symtab_hdr
->sh_info
, 0,
6932 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
6933 if (isym
->st_shndx
== SHN_UNDEF
)
6934 tsec
= bfd_und_section_ptr
;
6935 else if (isym
->st_shndx
== SHN_ABS
)
6936 tsec
= bfd_abs_section_ptr
;
6937 else if (isym
->st_shndx
== SHN_COMMON
)
6938 tsec
= bfd_com_section_ptr
;
6940 tsec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
6942 toff
= isym
->st_value
;
6943 sym_type
= ELF_ST_TYPE (isym
->st_info
);
6947 /* Global symbol handling. */
6950 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
6951 h
= elf_sym_hashes (abfd
)[indx
];
6953 while (h
->root
.type
== bfd_link_hash_indirect
6954 || h
->root
.type
== bfd_link_hash_warning
)
6955 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
6957 if (h
->root
.type
== bfd_link_hash_defined
6958 || h
->root
.type
== bfd_link_hash_defweak
)
6960 tsec
= h
->root
.u
.def
.section
;
6961 toff
= h
->root
.u
.def
.value
;
6963 else if (h
->root
.type
== bfd_link_hash_undefined
6964 || h
->root
.type
== bfd_link_hash_undefweak
)
6966 tsec
= bfd_und_section_ptr
;
6967 toff
= bfd_link_relocatable (link_info
) ? indx
: 0;
6972 /* If this branch is to __tls_get_addr then we may later
6973 optimise away the call. We won't be needing a long-
6974 branch stub in that case. */
6975 if (bfd_link_executable (link_info
)
6976 && h
== htab
->tls_get_addr
6977 && irel
!= internal_relocs
)
6979 unsigned long t_symndx
= ELF32_R_SYM (irel
[-1].r_info
);
6980 unsigned long t_rtype
= ELF32_R_TYPE (irel
[-1].r_info
);
6981 unsigned int tls_mask
= 0;
6983 /* The previous reloc should be one of R_PPC_TLSGD or
6984 R_PPC_TLSLD, or for older object files, a reloc
6985 on the __tls_get_addr arg setup insn. Get tls
6986 mask bits from the symbol on that reloc. */
6987 if (t_symndx
< symtab_hdr
->sh_info
)
6989 bfd_vma
*local_got_offsets
= elf_local_got_offsets (abfd
);
6991 if (local_got_offsets
!= NULL
)
6993 struct plt_entry
**local_plt
= (struct plt_entry
**)
6994 (local_got_offsets
+ symtab_hdr
->sh_info
);
6995 char *lgot_masks
= (char *)
6996 (local_plt
+ symtab_hdr
->sh_info
);
6997 tls_mask
= lgot_masks
[t_symndx
];
7002 struct elf_link_hash_entry
*th
7003 = elf_sym_hashes (abfd
)[t_symndx
- symtab_hdr
->sh_info
];
7005 while (th
->root
.type
== bfd_link_hash_indirect
7006 || th
->root
.type
== bfd_link_hash_warning
)
7007 th
= (struct elf_link_hash_entry
*) th
->root
.u
.i
.link
;
7010 = ((struct ppc_elf_link_hash_entry
*) th
)->tls_mask
;
7013 /* The mask bits tell us if the call will be
7015 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_GD
) == 0
7016 && (t_rtype
== R_PPC_TLSGD
7017 || t_rtype
== R_PPC_GOT_TLSGD16
7018 || t_rtype
== R_PPC_GOT_TLSGD16_LO
))
7020 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_LD
) == 0
7021 && (t_rtype
== R_PPC_TLSLD
7022 || t_rtype
== R_PPC_GOT_TLSLD16
7023 || t_rtype
== R_PPC_GOT_TLSLD16_LO
))
7030 if (r_type
== R_PPC_ADDR16_HA
)
7035 && ppc_elf_hash_entry (h
)->has_addr16_ha
7036 && ppc_elf_hash_entry (h
)->has_addr16_lo
)
7037 picfixup_size
+= 12;
7041 /* The condition here under which we call find_plt_ent must
7042 match that in relocate_section. If we call find_plt_ent here
7043 but not in relocate_section, or vice versa, then the branch
7044 destination used here may be incorrect. */
7048 /* We know is_branch_reloc (r_type) is true. */
7049 if (h
->type
== STT_GNU_IFUNC
7050 || r_type
== R_PPC_PLTREL24
)
7051 plist
= &h
->plt
.plist
;
7053 else if (sym_type
== STT_GNU_IFUNC
7054 && elf_local_got_offsets (abfd
) != NULL
)
7056 bfd_vma
*local_got_offsets
= elf_local_got_offsets (abfd
);
7057 struct plt_entry
**local_plt
= (struct plt_entry
**)
7058 (local_got_offsets
+ symtab_hdr
->sh_info
);
7059 plist
= local_plt
+ ELF32_R_SYM (irel
->r_info
);
7064 struct plt_entry
*ent
;
7066 if (r_type
== R_PPC_PLTREL24
&& bfd_link_pic (link_info
))
7067 addend
= irel
->r_addend
;
7068 ent
= find_plt_ent (plist
, got2
, addend
);
7071 if (htab
->plt_type
== PLT_NEW
7073 || !htab
->elf
.dynamic_sections_created
7074 || h
->dynindx
== -1)
7077 toff
= ent
->glink_offset
;
7082 toff
= ent
->plt
.offset
;
7087 /* If the branch and target are in the same section, you have
7088 no hope of adding stubs. We'll error out later should the
7093 /* There probably isn't any reason to handle symbols in
7094 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
7095 attribute for a code section, and we are only looking at
7096 branches. However, implement it correctly here as a
7097 reference for other target relax_section functions. */
7098 if (0 && tsec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
7100 /* At this stage in linking, no SEC_MERGE symbol has been
7101 adjusted, so all references to such symbols need to be
7102 passed through _bfd_merged_section_offset. (Later, in
7103 relocate_section, all SEC_MERGE symbols *except* for
7104 section symbols have been adjusted.)
7106 gas may reduce relocations against symbols in SEC_MERGE
7107 sections to a relocation against the section symbol when
7108 the original addend was zero. When the reloc is against
7109 a section symbol we should include the addend in the
7110 offset passed to _bfd_merged_section_offset, since the
7111 location of interest is the original symbol. On the
7112 other hand, an access to "sym+addend" where "sym" is not
7113 a section symbol should not include the addend; Such an
7114 access is presumed to be an offset from "sym"; The
7115 location of interest is just "sym". */
7116 if (sym_type
== STT_SECTION
)
7117 toff
+= irel
->r_addend
;
7120 = _bfd_merged_section_offset (abfd
, &tsec
,
7121 elf_section_data (tsec
)->sec_info
,
7124 if (sym_type
!= STT_SECTION
)
7125 toff
+= irel
->r_addend
;
7127 /* PLTREL24 addends are special. */
7128 else if (r_type
!= R_PPC_PLTREL24
)
7129 toff
+= irel
->r_addend
;
7131 /* Attempted -shared link of non-pic code loses. */
7132 if ((!bfd_link_relocatable (link_info
)
7133 && tsec
== bfd_und_section_ptr
)
7134 || tsec
->output_section
== NULL
7135 || (tsec
->owner
!= NULL
7136 && (tsec
->owner
->flags
& BFD_PLUGIN
) != 0))
7139 roff
= irel
->r_offset
;
7141 /* If the branch is in range, no need to do anything. */
7142 if (tsec
!= bfd_und_section_ptr
7143 && (!bfd_link_relocatable (link_info
)
7144 /* A relocatable link may have sections moved during
7145 final link, so do not presume they remain in range. */
7146 || tsec
->output_section
== isec
->output_section
))
7148 bfd_vma symaddr
, reladdr
;
7150 symaddr
= tsec
->output_section
->vma
+ tsec
->output_offset
+ toff
;
7151 reladdr
= isec
->output_section
->vma
+ isec
->output_offset
+ roff
;
7152 if (symaddr
- reladdr
+ max_branch_offset
7153 < 2 * max_branch_offset
)
7157 /* Look for an existing fixup to this address. */
7158 for (f
= branch_fixups
; f
; f
= f
->next
)
7159 if (f
->tsec
== tsec
&& f
->toff
== toff
)
7165 unsigned long stub_rtype
;
7167 val
= trampoff
- roff
;
7168 if (val
>= max_branch_offset
)
7169 /* Oh dear, we can't reach a trampoline. Don't try to add
7170 one. We'll report an error later. */
7173 if (bfd_link_pic (link_info
))
7175 size
= 4 * ARRAY_SIZE (shared_stub_entry
);
7180 size
= 4 * ARRAY_SIZE (stub_entry
);
7183 stub_rtype
= R_PPC_RELAX
;
7184 if (tsec
== htab
->plt
7185 || tsec
== htab
->glink
)
7187 stub_rtype
= R_PPC_RELAX_PLT
;
7188 if (r_type
== R_PPC_PLTREL24
)
7189 stub_rtype
= R_PPC_RELAX_PLTREL24
;
7192 /* Hijack the old relocation. Since we need two
7193 relocations for this use a "composite" reloc. */
7194 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
7196 irel
->r_offset
= trampoff
+ insn_offset
;
7197 if (r_type
== R_PPC_PLTREL24
7198 && stub_rtype
!= R_PPC_RELAX_PLTREL24
)
7201 /* Record the fixup so we don't do it again this section. */
7202 f
= bfd_malloc (sizeof (*f
));
7203 f
->next
= branch_fixups
;
7206 f
->trampoff
= trampoff
;
7214 val
= f
->trampoff
- roff
;
7215 if (val
>= max_branch_offset
)
7218 /* Nop out the reloc, since we're finalizing things here. */
7219 irel
->r_info
= ELF32_R_INFO (0, R_PPC_NONE
);
7222 /* Get the section contents. */
7223 if (contents
== NULL
)
7225 /* Get cached copy if it exists. */
7226 if (elf_section_data (isec
)->this_hdr
.contents
!= NULL
)
7227 contents
= elf_section_data (isec
)->this_hdr
.contents
;
7228 /* Go get them off disk. */
7229 else if (!bfd_malloc_and_get_section (abfd
, isec
, &contents
))
7233 /* Fix up the existing branch to hit the trampoline. */
7234 hit_addr
= contents
+ roff
;
7238 case R_PPC_LOCAL24PC
:
7239 case R_PPC_PLTREL24
:
7240 t0
= bfd_get_32 (abfd
, hit_addr
);
7242 t0
|= val
& 0x3fffffc;
7243 bfd_put_32 (abfd
, t0
, hit_addr
);
7247 case R_PPC_REL14_BRTAKEN
:
7248 case R_PPC_REL14_BRNTAKEN
:
7249 t0
= bfd_get_32 (abfd
, hit_addr
);
7252 bfd_put_32 (abfd
, t0
, hit_addr
);
7257 while (branch_fixups
!= NULL
)
7259 struct one_branch_fixup
*f
= branch_fixups
;
7260 branch_fixups
= branch_fixups
->next
;
7265 workaround_change
= FALSE
;
7267 if (htab
->params
->ppc476_workaround
7268 && (!bfd_link_relocatable (link_info
)
7269 || isec
->output_section
->alignment_power
>= htab
->params
->pagesize_p2
))
7271 bfd_vma addr
, end_addr
;
7272 unsigned int crossings
;
7273 bfd_vma pagesize
= (bfd_vma
) 1 << htab
->params
->pagesize_p2
;
7275 addr
= isec
->output_section
->vma
+ isec
->output_offset
;
7276 end_addr
= addr
+ trampoff
;
7278 crossings
= ((end_addr
& -pagesize
) - addr
) >> htab
->params
->pagesize_p2
;
7281 /* Keep space aligned, to ensure the patch code itself does
7282 not cross a page. Don't decrease size calculated on a
7283 previous pass as otherwise we might never settle on a layout. */
7284 newsize
= 15 - ((end_addr
- 1) & 15);
7285 newsize
+= crossings
* 16;
7286 if (relax_info
->workaround_size
< newsize
)
7288 relax_info
->workaround_size
= newsize
;
7289 workaround_change
= TRUE
;
7291 /* Ensure relocate_section is called. */
7292 isec
->flags
|= SEC_RELOC
;
7294 newsize
= trampoff
+ relax_info
->workaround_size
;
7297 if (htab
->params
->pic_fixup
> 0)
7299 picfixup_size
-= relax_info
->picfixup_size
;
7300 if (picfixup_size
!= 0)
7301 relax_info
->picfixup_size
+= picfixup_size
;
7302 newsize
+= relax_info
->picfixup_size
;
7305 if (changes
!= 0 || picfixup_size
!= 0 || workaround_change
)
7306 isec
->size
= newsize
;
7309 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
7311 if (! link_info
->keep_memory
)
7315 /* Cache the symbols for elf_link_input_bfd. */
7316 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
7320 if (contents
!= NULL
7321 && elf_section_data (isec
)->this_hdr
.contents
!= contents
)
7323 if (!changes
&& !link_info
->keep_memory
)
7327 /* Cache the section contents for elf_link_input_bfd. */
7328 elf_section_data (isec
)->this_hdr
.contents
= contents
;
7332 changes
+= picfixup_size
;
7335 /* Append sufficient NOP relocs so we can write out relocation
7336 information for the trampolines. */
7337 Elf_Internal_Shdr
*rel_hdr
;
7338 Elf_Internal_Rela
*new_relocs
= bfd_malloc ((changes
+ isec
->reloc_count
)
7339 * sizeof (*new_relocs
));
7344 memcpy (new_relocs
, internal_relocs
,
7345 isec
->reloc_count
* sizeof (*new_relocs
));
7346 for (ix
= changes
; ix
--;)
7348 irel
= new_relocs
+ ix
+ isec
->reloc_count
;
7350 irel
->r_info
= ELF32_R_INFO (0, R_PPC_NONE
);
7352 if (internal_relocs
!= elf_section_data (isec
)->relocs
)
7353 free (internal_relocs
);
7354 elf_section_data (isec
)->relocs
= new_relocs
;
7355 isec
->reloc_count
+= changes
;
7356 rel_hdr
= _bfd_elf_single_rel_hdr (isec
);
7357 rel_hdr
->sh_size
+= changes
* rel_hdr
->sh_entsize
;
7359 else if (internal_relocs
!= NULL
7360 && elf_section_data (isec
)->relocs
!= internal_relocs
)
7361 free (internal_relocs
);
7363 *again
= changes
!= 0 || workaround_change
;
7367 while (branch_fixups
!= NULL
)
7369 struct one_branch_fixup
*f
= branch_fixups
;
7370 branch_fixups
= branch_fixups
->next
;
7373 if (isymbuf
!= NULL
&& (unsigned char *) isymbuf
!= symtab_hdr
->contents
)
7375 if (contents
!= NULL
7376 && elf_section_data (isec
)->this_hdr
.contents
!= contents
)
7378 if (internal_relocs
!= NULL
7379 && elf_section_data (isec
)->relocs
!= internal_relocs
)
7380 free (internal_relocs
);
7384 /* What to do when ld finds relocations against symbols defined in
7385 discarded sections. */
7388 ppc_elf_action_discarded (asection
*sec
)
7390 if (strcmp (".fixup", sec
->name
) == 0)
7393 if (strcmp (".got2", sec
->name
) == 0)
7396 return _bfd_elf_default_action_discarded (sec
);
7399 /* Fill in the address for a pointer generated in a linker section. */
7402 elf_finish_pointer_linker_section (bfd
*input_bfd
,
7403 elf_linker_section_t
*lsect
,
7404 struct elf_link_hash_entry
*h
,
7406 const Elf_Internal_Rela
*rel
)
7408 elf_linker_section_pointers_t
*linker_section_ptr
;
7410 BFD_ASSERT (lsect
!= NULL
);
7414 /* Handle global symbol. */
7415 struct ppc_elf_link_hash_entry
*eh
;
7417 eh
= (struct ppc_elf_link_hash_entry
*) h
;
7418 BFD_ASSERT (eh
->elf
.def_regular
);
7419 linker_section_ptr
= eh
->linker_section_pointer
;
7423 /* Handle local symbol. */
7424 unsigned long r_symndx
= ELF32_R_SYM (rel
->r_info
);
7426 BFD_ASSERT (is_ppc_elf (input_bfd
));
7427 BFD_ASSERT (elf_local_ptr_offsets (input_bfd
) != NULL
);
7428 linker_section_ptr
= elf_local_ptr_offsets (input_bfd
)[r_symndx
];
7431 linker_section_ptr
= elf_find_pointer_linker_section (linker_section_ptr
,
7434 BFD_ASSERT (linker_section_ptr
!= NULL
);
7436 /* Offset will always be a multiple of four, so use the bottom bit
7437 as a "written" flag. */
7438 if ((linker_section_ptr
->offset
& 1) == 0)
7440 bfd_put_32 (lsect
->section
->owner
,
7441 relocation
+ linker_section_ptr
->addend
,
7442 lsect
->section
->contents
+ linker_section_ptr
->offset
);
7443 linker_section_ptr
->offset
+= 1;
7446 relocation
= (lsect
->section
->output_section
->vma
7447 + lsect
->section
->output_offset
7448 + linker_section_ptr
->offset
- 1
7449 - SYM_VAL (lsect
->sym
));
7453 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7454 lsect
->name
, (long) relocation
, (long) relocation
);
7460 #define PPC_LO(v) ((v) & 0xffff)
7461 #define PPC_HI(v) (((v) >> 16) & 0xffff)
7462 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
7465 write_glink_stub (struct plt_entry
*ent
, asection
*plt_sec
, unsigned char *p
,
7466 struct bfd_link_info
*info
)
7468 struct ppc_elf_link_hash_table
*htab
= ppc_elf_hash_table (info
);
7469 bfd
*output_bfd
= info
->output_bfd
;
7472 plt
= ((ent
->plt
.offset
& ~1)
7473 + plt_sec
->output_section
->vma
7474 + plt_sec
->output_offset
);
7476 if (bfd_link_pic (info
))
7480 if (ent
->addend
>= 32768)
7482 + ent
->sec
->output_section
->vma
7483 + ent
->sec
->output_offset
);
7484 else if (htab
->elf
.hgot
!= NULL
)
7485 got
= SYM_VAL (htab
->elf
.hgot
);
7489 if (plt
+ 0x8000 < 0x10000)
7491 bfd_put_32 (output_bfd
, LWZ_11_30
+ PPC_LO (plt
), p
);
7493 bfd_put_32 (output_bfd
, MTCTR_11
, p
);
7495 bfd_put_32 (output_bfd
, BCTR
, p
);
7497 bfd_put_32 (output_bfd
, htab
->params
->ppc476_workaround
? BA
: NOP
, p
);
7502 bfd_put_32 (output_bfd
, ADDIS_11_30
+ PPC_HA (plt
), p
);
7504 bfd_put_32 (output_bfd
, LWZ_11_11
+ PPC_LO (plt
), p
);
7506 bfd_put_32 (output_bfd
, MTCTR_11
, p
);
7508 bfd_put_32 (output_bfd
, BCTR
, p
);
7514 bfd_put_32 (output_bfd
, LIS_11
+ PPC_HA (plt
), p
);
7516 bfd_put_32 (output_bfd
, LWZ_11_11
+ PPC_LO (plt
), p
);
7518 bfd_put_32 (output_bfd
, MTCTR_11
, p
);
7520 bfd_put_32 (output_bfd
, BCTR
, p
);
7525 /* Return true if symbol is defined statically. */
7528 is_static_defined (struct elf_link_hash_entry
*h
)
7530 return ((h
->root
.type
== bfd_link_hash_defined
7531 || h
->root
.type
== bfd_link_hash_defweak
)
7532 && h
->root
.u
.def
.section
!= NULL
7533 && h
->root
.u
.def
.section
->output_section
!= NULL
);
7536 /* If INSN is an opcode that may be used with an @tls operand, return
7537 the transformed insn for TLS optimisation, otherwise return 0. If
7538 REG is non-zero only match an insn with RB or RA equal to REG. */
7541 _bfd_elf_ppc_at_tls_transform (unsigned int insn
, unsigned int reg
)
7545 if ((insn
& (0x3f << 26)) != 31 << 26)
7548 if (reg
== 0 || ((insn
>> 11) & 0x1f) == reg
)
7549 rtra
= insn
& ((1 << 26) - (1 << 16));
7550 else if (((insn
>> 16) & 0x1f) == reg
)
7551 rtra
= (insn
& (0x1f << 21)) | ((insn
& (0x1f << 11)) << 5);
7555 if ((insn
& (0x3ff << 1)) == 266 << 1)
7558 else if ((insn
& (0x1f << 1)) == 23 << 1
7559 && ((insn
& (0x1f << 6)) < 14 << 6
7560 || ((insn
& (0x1f << 6)) >= 16 << 6
7561 && (insn
& (0x1f << 6)) < 24 << 6)))
7562 /* load and store indexed -> dform. */
7563 insn
= (32 | ((insn
>> 6) & 0x1f)) << 26;
7564 else if ((insn
& (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7565 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7566 insn
= ((58 | ((insn
>> 6) & 4)) << 26) | ((insn
>> 6) & 1);
7567 else if ((insn
& (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7569 insn
= (58 << 26) | 2;
7576 /* If INSN is an opcode that may be used with an @tprel operand, return
7577 the transformed insn for an undefined weak symbol, ie. with the
7578 thread pointer REG operand removed. Otherwise return 0. */
7581 _bfd_elf_ppc_at_tprel_transform (unsigned int insn
, unsigned int reg
)
7583 if ((insn
& (0x1f << 16)) == reg
<< 16
7584 && ((insn
& (0x3f << 26)) == 14u << 26 /* addi */
7585 || (insn
& (0x3f << 26)) == 15u << 26 /* addis */
7586 || (insn
& (0x3f << 26)) == 32u << 26 /* lwz */
7587 || (insn
& (0x3f << 26)) == 34u << 26 /* lbz */
7588 || (insn
& (0x3f << 26)) == 36u << 26 /* stw */
7589 || (insn
& (0x3f << 26)) == 38u << 26 /* stb */
7590 || (insn
& (0x3f << 26)) == 40u << 26 /* lhz */
7591 || (insn
& (0x3f << 26)) == 42u << 26 /* lha */
7592 || (insn
& (0x3f << 26)) == 44u << 26 /* sth */
7593 || (insn
& (0x3f << 26)) == 46u << 26 /* lmw */
7594 || (insn
& (0x3f << 26)) == 47u << 26 /* stmw */
7595 || (insn
& (0x3f << 26)) == 48u << 26 /* lfs */
7596 || (insn
& (0x3f << 26)) == 50u << 26 /* lfd */
7597 || (insn
& (0x3f << 26)) == 52u << 26 /* stfs */
7598 || (insn
& (0x3f << 26)) == 54u << 26 /* stfd */
7599 || ((insn
& (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7601 || ((insn
& (0x3f << 26)) == 62u << 26 /* std, stmd */
7602 && ((insn
& 3) == 0 || (insn
& 3) == 3))))
7604 insn
&= ~(0x1f << 16);
7606 else if ((insn
& (0x1f << 21)) == reg
<< 21
7607 && ((insn
& (0x3e << 26)) == 24u << 26 /* ori, oris */
7608 || (insn
& (0x3e << 26)) == 26u << 26 /* xori,xoris */
7609 || (insn
& (0x3e << 26)) == 28u << 26 /* andi,andis */))
7611 insn
&= ~(0x1f << 21);
7612 insn
|= (insn
& (0x1f << 16)) << 5;
7613 if ((insn
& (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7614 insn
-= 2 >> 26; /* convert to ori,oris */
7622 is_insn_ds_form (unsigned int insn
)
7624 return ((insn
& (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7625 || (insn
& (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7626 || (insn
& (0x3f << 26)) == 57u << 26 /* lfdp */
7627 || (insn
& (0x3f << 26)) == 61u << 26 /* stfdp */);
7631 is_insn_dq_form (unsigned int insn
)
7633 return ((insn
& (0x3f << 26)) == 56u << 26 /* lq */
7634 || ((insn
& (0x3f << 26)) == (61u << 26) /* lxv, stxv */
7635 && (insn
& 3) == 1));
7638 /* The RELOCATE_SECTION function is called by the ELF backend linker
7639 to handle the relocations for a section.
7641 The relocs are always passed as Rela structures; if the section
7642 actually uses Rel structures, the r_addend field will always be
7645 This function is responsible for adjust the section contents as
7646 necessary, and (if using Rela relocs and generating a
7647 relocatable output file) adjusting the reloc addend as
7650 This function does not have to worry about setting the reloc
7651 address or the reloc symbol index.
7653 LOCAL_SYMS is a pointer to the swapped in local symbols.
7655 LOCAL_SECTIONS is an array giving the section in the input file
7656 corresponding to the st_shndx field of each local symbol.
7658 The global hash table entry for the global symbols can be found
7659 via elf_sym_hashes (input_bfd).
7661 When generating relocatable output, this function must handle
7662 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7663 going to be the section symbol corresponding to the output
7664 section, which means that the addend must be adjusted
7668 ppc_elf_relocate_section (bfd
*output_bfd
,
7669 struct bfd_link_info
*info
,
7671 asection
*input_section
,
7673 Elf_Internal_Rela
*relocs
,
7674 Elf_Internal_Sym
*local_syms
,
7675 asection
**local_sections
)
7677 Elf_Internal_Shdr
*symtab_hdr
;
7678 struct elf_link_hash_entry
**sym_hashes
;
7679 struct ppc_elf_link_hash_table
*htab
;
7680 Elf_Internal_Rela
*rel
;
7681 Elf_Internal_Rela
*wrel
;
7682 Elf_Internal_Rela
*relend
;
7683 Elf_Internal_Rela outrel
;
7685 bfd_vma
*local_got_offsets
;
7686 bfd_boolean ret
= TRUE
;
7687 bfd_vma d_offset
= (bfd_big_endian (output_bfd
) ? 2 : 0);
7688 bfd_boolean is_vxworks_tls
;
7689 unsigned int picfixup_size
= 0;
7690 struct ppc_elf_relax_info
*relax_info
= NULL
;
7693 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7694 "%ld relocations%s",
7695 input_bfd
, input_section
,
7696 (long) input_section
->reloc_count
,
7697 (bfd_link_relocatable (info
)) ? " (relocatable)" : "");
7700 got2
= bfd_get_section_by_name (input_bfd
, ".got2");
7702 /* Initialize howto table if not already done. */
7703 if (!ppc_elf_howto_table
[R_PPC_ADDR32
])
7704 ppc_elf_howto_init ();
7706 htab
= ppc_elf_hash_table (info
);
7707 local_got_offsets
= elf_local_got_offsets (input_bfd
);
7708 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
7709 sym_hashes
= elf_sym_hashes (input_bfd
);
7710 /* We have to handle relocations in vxworks .tls_vars sections
7711 specially, because the dynamic loader is 'weird'. */
7712 is_vxworks_tls
= (htab
->is_vxworks
&& bfd_link_pic (info
)
7713 && !strcmp (input_section
->output_section
->name
,
7715 if (input_section
->sec_info_type
== SEC_INFO_TYPE_TARGET
)
7716 relax_info
= elf_section_data (input_section
)->sec_info
;
7717 rel
= wrel
= relocs
;
7718 relend
= relocs
+ input_section
->reloc_count
;
7719 for (; rel
< relend
; wrel
++, rel
++)
7721 enum elf_ppc_reloc_type r_type
;
7723 bfd_reloc_status_type r
;
7724 Elf_Internal_Sym
*sym
;
7726 struct elf_link_hash_entry
*h
;
7727 const char *sym_name
;
7728 reloc_howto_type
*howto
;
7729 unsigned long r_symndx
;
7731 bfd_vma branch_bit
, from
;
7732 bfd_boolean unresolved_reloc
;
7734 unsigned int tls_type
, tls_mask
, tls_gd
;
7735 struct plt_entry
**ifunc
;
7736 struct reloc_howto_struct alt_howto
;
7739 r_type
= ELF32_R_TYPE (rel
->r_info
);
7743 unresolved_reloc
= FALSE
;
7745 r_symndx
= ELF32_R_SYM (rel
->r_info
);
7747 if (r_symndx
< symtab_hdr
->sh_info
)
7749 sym
= local_syms
+ r_symndx
;
7750 sec
= local_sections
[r_symndx
];
7751 sym_name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
, sec
);
7753 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
7757 bfd_boolean ignored
;
7759 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
7760 r_symndx
, symtab_hdr
, sym_hashes
,
7762 unresolved_reloc
, warned
, ignored
);
7764 sym_name
= h
->root
.root
.string
;
7767 if (sec
!= NULL
&& discarded_section (sec
))
7769 /* For relocs against symbols from removed linkonce sections,
7770 or sections discarded by a linker script, we just want the
7771 section contents zeroed. Avoid any special processing. */
7773 if (r_type
< R_PPC_max
)
7774 howto
= ppc_elf_howto_table
[r_type
];
7776 _bfd_clear_contents (howto
, input_bfd
, input_section
,
7777 contents
+ rel
->r_offset
);
7778 wrel
->r_offset
= rel
->r_offset
;
7782 /* For ld -r, remove relocations in debug sections against
7783 sections defined in discarded sections. Not done for
7784 non-debug to preserve relocs in .eh_frame which the
7785 eh_frame editing code expects to be present. */
7786 if (bfd_link_relocatable (info
)
7787 && (input_section
->flags
& SEC_DEBUGGING
))
7793 if (bfd_link_relocatable (info
))
7796 && r_type
== R_PPC_PLTREL24
7797 && rel
->r_addend
!= 0)
7799 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7800 addend specifies the GOT pointer offset within .got2. */
7801 rel
->r_addend
+= got2
->output_offset
;
7803 if (r_type
!= R_PPC_RELAX_PLT
7804 && r_type
!= R_PPC_RELAX_PLTREL24
7805 && r_type
!= R_PPC_RELAX
)
7809 /* TLS optimizations. Replace instruction sequences and relocs
7810 based on information we collected in tls_optimize. We edit
7811 RELOCS so that --emit-relocs will output something sensible
7812 for the final instruction stream. */
7816 tls_mask
= ((struct ppc_elf_link_hash_entry
*) h
)->tls_mask
;
7817 else if (local_got_offsets
!= NULL
)
7819 struct plt_entry
**local_plt
;
7822 = (struct plt_entry
**) (local_got_offsets
+ symtab_hdr
->sh_info
);
7823 lgot_masks
= (char *) (local_plt
+ symtab_hdr
->sh_info
);
7824 tls_mask
= lgot_masks
[r_symndx
];
7827 /* Ensure reloc mapping code below stays sane. */
7828 if ((R_PPC_GOT_TLSLD16
& 3) != (R_PPC_GOT_TLSGD16
& 3)
7829 || (R_PPC_GOT_TLSLD16_LO
& 3) != (R_PPC_GOT_TLSGD16_LO
& 3)
7830 || (R_PPC_GOT_TLSLD16_HI
& 3) != (R_PPC_GOT_TLSGD16_HI
& 3)
7831 || (R_PPC_GOT_TLSLD16_HA
& 3) != (R_PPC_GOT_TLSGD16_HA
& 3)
7832 || (R_PPC_GOT_TLSLD16
& 3) != (R_PPC_GOT_TPREL16
& 3)
7833 || (R_PPC_GOT_TLSLD16_LO
& 3) != (R_PPC_GOT_TPREL16_LO
& 3)
7834 || (R_PPC_GOT_TLSLD16_HI
& 3) != (R_PPC_GOT_TPREL16_HI
& 3)
7835 || (R_PPC_GOT_TLSLD16_HA
& 3) != (R_PPC_GOT_TPREL16_HA
& 3))
7842 case R_PPC_GOT_TPREL16
:
7843 case R_PPC_GOT_TPREL16_LO
:
7844 if ((tls_mask
& TLS_TLS
) != 0
7845 && (tls_mask
& TLS_TPREL
) == 0)
7849 insn
= bfd_get_32 (output_bfd
,
7850 contents
+ rel
->r_offset
- d_offset
);
7852 insn
|= 0x3c020000; /* addis 0,2,0 */
7853 bfd_put_32 (output_bfd
, insn
,
7854 contents
+ rel
->r_offset
- d_offset
);
7855 r_type
= R_PPC_TPREL16_HA
;
7856 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
7861 if ((tls_mask
& TLS_TLS
) != 0
7862 && (tls_mask
& TLS_TPREL
) == 0)
7866 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
);
7867 insn
= _bfd_elf_ppc_at_tls_transform (insn
, 2);
7870 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
7871 r_type
= R_PPC_TPREL16_LO
;
7872 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
7874 /* Was PPC_TLS which sits on insn boundary, now
7875 PPC_TPREL16_LO which is at low-order half-word. */
7876 rel
->r_offset
+= d_offset
;
7880 case R_PPC_GOT_TLSGD16_HI
:
7881 case R_PPC_GOT_TLSGD16_HA
:
7882 tls_gd
= TLS_TPRELGD
;
7883 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_GD
) == 0)
7887 case R_PPC_GOT_TLSLD16_HI
:
7888 case R_PPC_GOT_TLSLD16_HA
:
7889 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_LD
) == 0)
7892 if ((tls_mask
& tls_gd
) != 0)
7893 r_type
= (((r_type
- (R_PPC_GOT_TLSGD16
& 3)) & 3)
7894 + R_PPC_GOT_TPREL16
);
7897 rel
->r_offset
-= d_offset
;
7898 bfd_put_32 (output_bfd
, NOP
, contents
+ rel
->r_offset
);
7899 r_type
= R_PPC_NONE
;
7901 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
7905 case R_PPC_GOT_TLSGD16
:
7906 case R_PPC_GOT_TLSGD16_LO
:
7907 tls_gd
= TLS_TPRELGD
;
7908 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_GD
) == 0)
7912 case R_PPC_GOT_TLSLD16
:
7913 case R_PPC_GOT_TLSLD16_LO
:
7914 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_LD
) == 0)
7916 unsigned int insn1
, insn2
;
7920 offset
= (bfd_vma
) -1;
7921 /* If not using the newer R_PPC_TLSGD/LD to mark
7922 __tls_get_addr calls, we must trust that the call
7923 stays with its arg setup insns, ie. that the next
7924 reloc is the __tls_get_addr call associated with
7925 the current reloc. Edit both insns. */
7926 if (input_section
->has_tls_get_addr_call
7928 && branch_reloc_hash_match (input_bfd
, rel
+ 1,
7929 htab
->tls_get_addr
))
7930 offset
= rel
[1].r_offset
;
7931 /* We read the low GOT_TLS insn because we need to keep
7932 the destination reg. It may be something other than
7933 the usual r3, and moved to r3 before the call by
7934 intervening code. */
7935 insn1
= bfd_get_32 (output_bfd
,
7936 contents
+ rel
->r_offset
- d_offset
);
7937 if ((tls_mask
& tls_gd
) != 0)
7940 insn1
&= (0x1f << 21) | (0x1f << 16);
7941 insn1
|= 32 << 26; /* lwz */
7942 if (offset
!= (bfd_vma
) -1)
7944 rel
[1].r_info
= ELF32_R_INFO (STN_UNDEF
, R_PPC_NONE
);
7945 insn2
= 0x7c631214; /* add 3,3,2 */
7946 bfd_put_32 (output_bfd
, insn2
, contents
+ offset
);
7948 r_type
= (((r_type
- (R_PPC_GOT_TLSGD16
& 3)) & 3)
7949 + R_PPC_GOT_TPREL16
);
7950 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
7955 insn1
&= 0x1f << 21;
7956 insn1
|= 0x3c020000; /* addis r,2,0 */
7959 /* Was an LD reloc. */
7961 r_symndx
< symtab_hdr
->sh_info
;
7963 if (local_sections
[r_symndx
] == sec
)
7965 if (r_symndx
>= symtab_hdr
->sh_info
)
7966 r_symndx
= STN_UNDEF
;
7967 rel
->r_addend
= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
7968 if (r_symndx
!= STN_UNDEF
)
7969 rel
->r_addend
-= (local_syms
[r_symndx
].st_value
7970 + sec
->output_offset
7971 + sec
->output_section
->vma
);
7973 r_type
= R_PPC_TPREL16_HA
;
7974 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
7975 if (offset
!= (bfd_vma
) -1)
7977 rel
[1].r_info
= ELF32_R_INFO (r_symndx
, R_PPC_TPREL16_LO
);
7978 rel
[1].r_offset
= offset
+ d_offset
;
7979 rel
[1].r_addend
= rel
->r_addend
;
7980 insn2
= 0x38630000; /* addi 3,3,0 */
7981 bfd_put_32 (output_bfd
, insn2
, contents
+ offset
);
7984 bfd_put_32 (output_bfd
, insn1
,
7985 contents
+ rel
->r_offset
- d_offset
);
7988 /* We changed the symbol on an LD reloc. Start over
7989 in order to get h, sym, sec etc. right. */
7996 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_GD
) == 0)
7999 bfd_vma offset
= rel
->r_offset
;
8001 if ((tls_mask
& TLS_TPRELGD
) != 0)
8004 r_type
= R_PPC_NONE
;
8005 insn2
= 0x7c631214; /* add 3,3,2 */
8010 r_type
= R_PPC_TPREL16_LO
;
8011 rel
->r_offset
+= d_offset
;
8012 insn2
= 0x38630000; /* addi 3,3,0 */
8014 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
8015 bfd_put_32 (output_bfd
, insn2
, contents
+ offset
);
8016 /* Zap the reloc on the _tls_get_addr call too. */
8017 BFD_ASSERT (offset
== rel
[1].r_offset
);
8018 rel
[1].r_info
= ELF32_R_INFO (STN_UNDEF
, R_PPC_NONE
);
8023 if ((tls_mask
& TLS_TLS
) != 0 && (tls_mask
& TLS_LD
) == 0)
8028 r_symndx
< symtab_hdr
->sh_info
;
8030 if (local_sections
[r_symndx
] == sec
)
8032 if (r_symndx
>= symtab_hdr
->sh_info
)
8033 r_symndx
= STN_UNDEF
;
8034 rel
->r_addend
= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
8035 if (r_symndx
!= STN_UNDEF
)
8036 rel
->r_addend
-= (local_syms
[r_symndx
].st_value
8037 + sec
->output_offset
8038 + sec
->output_section
->vma
);
8040 rel
->r_info
= ELF32_R_INFO (r_symndx
, R_PPC_TPREL16_LO
);
8041 rel
->r_offset
+= d_offset
;
8042 insn2
= 0x38630000; /* addi 3,3,0 */
8043 bfd_put_32 (output_bfd
, insn2
,
8044 contents
+ rel
->r_offset
- d_offset
);
8045 /* Zap the reloc on the _tls_get_addr call too. */
8046 BFD_ASSERT (rel
->r_offset
- d_offset
== rel
[1].r_offset
);
8047 rel
[1].r_info
= ELF32_R_INFO (STN_UNDEF
, R_PPC_NONE
);
8053 /* Handle other relocations that tweak non-addend part of insn. */
8060 /* Branch taken prediction relocations. */
8061 case R_PPC_ADDR14_BRTAKEN
:
8062 case R_PPC_REL14_BRTAKEN
:
8063 branch_bit
= BRANCH_PREDICT_BIT
;
8066 /* Branch not taken prediction relocations. */
8067 case R_PPC_ADDR14_BRNTAKEN
:
8068 case R_PPC_REL14_BRNTAKEN
:
8072 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
);
8073 insn
&= ~BRANCH_PREDICT_BIT
;
8076 from
= (rel
->r_offset
8077 + input_section
->output_offset
8078 + input_section
->output_section
->vma
);
8080 /* Invert 'y' bit if not the default. */
8081 if ((bfd_signed_vma
) (relocation
+ rel
->r_addend
- from
) < 0)
8082 insn
^= BRANCH_PREDICT_BIT
;
8084 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
8089 if (ELIMINATE_COPY_RELOCS
8093 && ppc_elf_hash_entry (h
)->has_addr16_ha
8094 && ppc_elf_hash_entry (h
)->has_addr16_lo
8095 && htab
->params
->pic_fixup
> 0)
8097 /* Convert lis;addi or lis;load/store accessing a protected
8098 variable defined in a shared library to PIC. */
8101 if (r_type
== R_PPC_ADDR16_HA
)
8103 insn
= bfd_get_32 (output_bfd
,
8104 contents
+ rel
->r_offset
- d_offset
);
8105 if ((insn
& (0x3f << 26)) == (15u << 26)
8106 && (insn
& (0x1f << 16)) == 0 /* lis */)
8112 p
= (contents
+ input_section
->size
8113 - relax_info
->workaround_size
8114 - relax_info
->picfixup_size
8116 off
= (p
- contents
) - (rel
->r_offset
- d_offset
);
8117 if (off
> 0x1fffffc || (off
& 3) != 0)
8118 info
->callbacks
->einfo
8119 (_("%P: %H: fixup branch overflow\n"),
8120 input_bfd
, input_section
, rel
->r_offset
);
8122 bfd_put_32 (output_bfd
, B
| off
,
8123 contents
+ rel
->r_offset
- d_offset
);
8124 got_addr
= (htab
->got
->output_section
->vma
8125 + htab
->got
->output_offset
8126 + (h
->got
.offset
& ~1));
8127 wrel
->r_offset
= (p
- contents
) + d_offset
;
8128 wrel
->r_info
= ELF32_R_INFO (0, R_PPC_ADDR16_HA
);
8129 wrel
->r_addend
= got_addr
;
8131 insn
|= ((unsigned int )(got_addr
+ 0x8000) >> 16) & 0xffff;
8132 bfd_put_32 (output_bfd
, insn
, p
);
8134 /* Convert lis to lwz, loading address from GOT. */
8136 insn
^= (32u ^ 15u) << 26;
8137 insn
|= (insn
& (0x1f << 21)) >> 5;
8138 insn
|= got_addr
& 0xffff;
8139 bfd_put_32 (output_bfd
, insn
, p
+ 4);
8141 bfd_put_32 (output_bfd
, B
| ((-4 - off
) & 0x3ffffff), p
+ 8);
8142 picfixup_size
+= 12;
8144 /* Use one of the spare relocs, so --emit-relocs
8145 output is reasonable. */
8146 memmove (rel
+ 1, rel
, (relend
- rel
- 1) * sizeof (*rel
));
8148 rel
->r_offset
= wrel
[-1].r_offset
+ 4;
8149 rel
->r_info
= ELF32_R_INFO (0, R_PPC_ADDR16_LO
);
8150 rel
->r_addend
= wrel
[-1].r_addend
;
8152 /* Continue on as if we had a got reloc, to output
8154 r_type
= R_PPC_GOT16_LO
;
8157 info
->callbacks
->einfo
8158 (_("%P: %H: error: %s with unexpected instruction %x\n"),
8159 input_bfd
, input_section
, rel
->r_offset
,
8160 "R_PPC_ADDR16_HA", insn
);
8162 else if (r_type
== R_PPC_ADDR16_LO
)
8164 insn
= bfd_get_32 (output_bfd
,
8165 contents
+ rel
->r_offset
- d_offset
);
8166 if ((insn
& (0x3f << 26)) == 14u << 26 /* addi */
8167 || (insn
& (0x3f << 26)) == 32u << 26 /* lwz */
8168 || (insn
& (0x3f << 26)) == 34u << 26 /* lbz */
8169 || (insn
& (0x3f << 26)) == 36u << 26 /* stw */
8170 || (insn
& (0x3f << 26)) == 38u << 26 /* stb */
8171 || (insn
& (0x3f << 26)) == 40u << 26 /* lhz */
8172 || (insn
& (0x3f << 26)) == 42u << 26 /* lha */
8173 || (insn
& (0x3f << 26)) == 44u << 26 /* sth */
8174 || (insn
& (0x3f << 26)) == 46u << 26 /* lmw */
8175 || (insn
& (0x3f << 26)) == 47u << 26 /* stmw */
8176 || (insn
& (0x3f << 26)) == 48u << 26 /* lfs */
8177 || (insn
& (0x3f << 26)) == 50u << 26 /* lfd */
8178 || (insn
& (0x3f << 26)) == 52u << 26 /* stfs */
8179 || (insn
& (0x3f << 26)) == 54u << 26 /* stfd */
8180 || ((insn
& (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8182 || ((insn
& (0x3f << 26)) == 62u << 26 /* std, stmd */
8183 && ((insn
& 3) == 0 || (insn
& 3) == 3)))
8185 /* Arrange to apply the reloc addend, if any. */
8187 unresolved_reloc
= FALSE
;
8188 rel
->r_info
= ELF32_R_INFO (0, r_type
);
8191 info
->callbacks
->einfo
8192 (_("%P: %H: error: %s with unexpected instruction %x\n"),
8193 input_bfd
, input_section
, rel
->r_offset
,
8194 "R_PPC_ADDR16_LO", insn
);
8199 if (!htab
->is_vxworks
)
8201 struct plt_entry
*ent
;
8205 if (h
->type
== STT_GNU_IFUNC
)
8206 ifunc
= &h
->plt
.plist
;
8208 else if (local_got_offsets
!= NULL
8209 && ELF_ST_TYPE (sym
->st_info
) == STT_GNU_IFUNC
)
8211 struct plt_entry
**local_plt
;
8213 local_plt
= (struct plt_entry
**) (local_got_offsets
8214 + symtab_hdr
->sh_info
);
8215 ifunc
= local_plt
+ r_symndx
;
8220 && (!bfd_link_pic (info
)
8221 || is_branch_reloc (r_type
)))
8224 if (r_type
== R_PPC_PLTREL24
&& bfd_link_pic (info
))
8225 addend
= rel
->r_addend
;
8226 ent
= find_plt_ent (ifunc
, got2
, addend
);
8230 if (h
== NULL
&& (ent
->plt
.offset
& 1) == 0)
8232 Elf_Internal_Rela rela
;
8235 rela
.r_offset
= (htab
->iplt
->output_section
->vma
8236 + htab
->iplt
->output_offset
8238 rela
.r_info
= ELF32_R_INFO (0, R_PPC_IRELATIVE
);
8239 rela
.r_addend
= relocation
;
8240 loc
= htab
->reliplt
->contents
;
8241 loc
+= (htab
->reliplt
->reloc_count
++
8242 * sizeof (Elf32_External_Rela
));
8243 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
8245 ent
->plt
.offset
|= 1;
8247 if (h
== NULL
&& (ent
->glink_offset
& 1) == 0)
8249 unsigned char *p
= ((unsigned char *) htab
->glink
->contents
8250 + ent
->glink_offset
);
8251 write_glink_stub (ent
, htab
->iplt
, p
, info
);
8252 ent
->glink_offset
|= 1;
8255 unresolved_reloc
= FALSE
;
8256 if (htab
->plt_type
== PLT_NEW
8257 || !htab
->elf
.dynamic_sections_created
8259 || h
->dynindx
== -1)
8260 relocation
= (htab
->glink
->output_section
->vma
8261 + htab
->glink
->output_offset
8262 + (ent
->glink_offset
& ~1));
8264 relocation
= (htab
->plt
->output_section
->vma
8265 + htab
->plt
->output_offset
8270 addend
= rel
->r_addend
;
8273 if (r_type
< R_PPC_max
)
8274 howto
= ppc_elf_howto_table
[r_type
];
8278 info
->callbacks
->einfo
8279 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
8280 input_bfd
, (int) r_type
, sym_name
);
8282 bfd_set_error (bfd_error_bad_value
);
8290 case R_PPC_EMB_MRKREF
:
8291 case R_PPC_GNU_VTINHERIT
:
8292 case R_PPC_GNU_VTENTRY
:
8295 /* GOT16 relocations. Like an ADDR16 using the symbol's
8296 address in the GOT as relocation value instead of the
8297 symbol's value itself. Also, create a GOT entry for the
8298 symbol and put the symbol value there. */
8299 case R_PPC_GOT_TLSGD16
:
8300 case R_PPC_GOT_TLSGD16_LO
:
8301 case R_PPC_GOT_TLSGD16_HI
:
8302 case R_PPC_GOT_TLSGD16_HA
:
8303 tls_type
= TLS_TLS
| TLS_GD
;
8306 case R_PPC_GOT_TLSLD16
:
8307 case R_PPC_GOT_TLSLD16_LO
:
8308 case R_PPC_GOT_TLSLD16_HI
:
8309 case R_PPC_GOT_TLSLD16_HA
:
8310 tls_type
= TLS_TLS
| TLS_LD
;
8313 case R_PPC_GOT_TPREL16
:
8314 case R_PPC_GOT_TPREL16_LO
:
8315 case R_PPC_GOT_TPREL16_HI
:
8316 case R_PPC_GOT_TPREL16_HA
:
8317 tls_type
= TLS_TLS
| TLS_TPREL
;
8320 case R_PPC_GOT_DTPREL16
:
8321 case R_PPC_GOT_DTPREL16_LO
:
8322 case R_PPC_GOT_DTPREL16_HI
:
8323 case R_PPC_GOT_DTPREL16_HA
:
8324 tls_type
= TLS_TLS
| TLS_DTPREL
;
8328 case R_PPC_GOT16_LO
:
8329 case R_PPC_GOT16_HI
:
8330 case R_PPC_GOT16_HA
:
8334 /* Relocation is to the entry for this symbol in the global
8340 if (htab
->got
== NULL
)
8344 if (tls_type
== (TLS_TLS
| TLS_LD
)
8346 || !h
->def_dynamic
))
8347 offp
= &htab
->tlsld_got
.offset
;
8351 dyn
= htab
->elf
.dynamic_sections_created
;
8352 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
)
8353 || (bfd_link_pic (info
)
8354 && SYMBOL_REFERENCES_LOCAL (info
, h
)))
8355 /* This is actually a static link, or it is a
8356 -Bsymbolic link and the symbol is defined
8357 locally, or the symbol was forced to be local
8358 because of a version file. */
8362 BFD_ASSERT (h
->dynindx
!= -1);
8364 unresolved_reloc
= FALSE
;
8366 offp
= &h
->got
.offset
;
8370 if (local_got_offsets
== NULL
)
8372 offp
= &local_got_offsets
[r_symndx
];
8375 /* The offset must always be a multiple of 4. We use the
8376 least significant bit to record whether we have already
8377 processed this entry. */
8383 unsigned int tls_m
= (tls_mask
8384 & (TLS_LD
| TLS_GD
| TLS_DTPREL
8385 | TLS_TPREL
| TLS_TPRELGD
));
8387 if (offp
== &htab
->tlsld_got
.offset
)
8393 /* We might have multiple got entries for this sym.
8394 Initialize them all. */
8399 if ((tls_m
& TLS_LD
) != 0)
8401 tls_ty
= TLS_TLS
| TLS_LD
;
8404 else if ((tls_m
& TLS_GD
) != 0)
8406 tls_ty
= TLS_TLS
| TLS_GD
;
8409 else if ((tls_m
& TLS_DTPREL
) != 0)
8411 tls_ty
= TLS_TLS
| TLS_DTPREL
;
8412 tls_m
&= ~TLS_DTPREL
;
8414 else if ((tls_m
& (TLS_TPREL
| TLS_TPRELGD
)) != 0)
8416 tls_ty
= TLS_TLS
| TLS_TPREL
;
8420 /* Generate relocs for the dynamic linker. */
8421 if ((bfd_link_pic (info
) || indx
!= 0)
8422 && (offp
== &htab
->tlsld_got
.offset
8424 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
8425 || h
->root
.type
!= bfd_link_hash_undefweak
))
8427 asection
*rsec
= htab
->relgot
;
8431 rsec
= htab
->reliplt
;
8432 outrel
.r_offset
= (htab
->got
->output_section
->vma
8433 + htab
->got
->output_offset
8435 outrel
.r_addend
= 0;
8436 if (tls_ty
& (TLS_LD
| TLS_GD
))
8438 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_DTPMOD32
);
8439 if (tls_ty
== (TLS_TLS
| TLS_GD
))
8441 loc
= rsec
->contents
;
8442 loc
+= (rsec
->reloc_count
++
8443 * sizeof (Elf32_External_Rela
));
8444 bfd_elf32_swap_reloca_out (output_bfd
,
8446 outrel
.r_offset
+= 4;
8448 = ELF32_R_INFO (indx
, R_PPC_DTPREL32
);
8451 else if (tls_ty
== (TLS_TLS
| TLS_DTPREL
))
8452 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_DTPREL32
);
8453 else if (tls_ty
== (TLS_TLS
| TLS_TPREL
))
8454 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_TPREL32
);
8456 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_GLOB_DAT
);
8457 else if (ifunc
!= NULL
)
8458 outrel
.r_info
= ELF32_R_INFO (0, R_PPC_IRELATIVE
);
8460 outrel
.r_info
= ELF32_R_INFO (0, R_PPC_RELATIVE
);
8461 if (indx
== 0 && tls_ty
!= (TLS_TLS
| TLS_LD
))
8463 outrel
.r_addend
+= relocation
;
8464 if (tls_ty
& (TLS_GD
| TLS_DTPREL
| TLS_TPREL
))
8466 if (htab
->elf
.tls_sec
== NULL
)
8467 outrel
.r_addend
= 0;
8469 outrel
.r_addend
-= htab
->elf
.tls_sec
->vma
;
8472 loc
= rsec
->contents
;
8473 loc
+= (rsec
->reloc_count
++
8474 * sizeof (Elf32_External_Rela
));
8475 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
8478 /* Init the .got section contents if we're not
8479 emitting a reloc. */
8482 bfd_vma value
= relocation
;
8484 if (tls_ty
== (TLS_TLS
| TLS_LD
))
8486 else if (tls_ty
!= 0)
8488 if (htab
->elf
.tls_sec
== NULL
)
8492 value
-= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
8493 if (tls_ty
== (TLS_TLS
| TLS_TPREL
))
8494 value
+= DTP_OFFSET
- TP_OFFSET
;
8497 if (tls_ty
== (TLS_TLS
| TLS_GD
))
8499 bfd_put_32 (output_bfd
, value
,
8500 htab
->got
->contents
+ off
+ 4);
8504 bfd_put_32 (output_bfd
, value
,
8505 htab
->got
->contents
+ off
);
8509 if (tls_ty
& (TLS_LD
| TLS_GD
))
8518 if (off
>= (bfd_vma
) -2)
8521 if ((tls_type
& TLS_TLS
) != 0)
8523 if (tls_type
!= (TLS_TLS
| TLS_LD
))
8525 if ((tls_mask
& TLS_LD
) != 0
8527 || !h
->def_dynamic
))
8529 if (tls_type
!= (TLS_TLS
| TLS_GD
))
8531 if ((tls_mask
& TLS_GD
) != 0)
8533 if (tls_type
!= (TLS_TLS
| TLS_DTPREL
))
8535 if ((tls_mask
& TLS_DTPREL
) != 0)
8542 /* If here for a picfixup, we're done. */
8543 if (r_type
!= ELF32_R_TYPE (rel
->r_info
))
8546 relocation
= (htab
->got
->output_section
->vma
8547 + htab
->got
->output_offset
8549 - SYM_VAL (htab
->elf
.hgot
));
8551 /* Addends on got relocations don't make much sense.
8552 x+off@got is actually x@got+off, and since the got is
8553 generated by a hash table traversal, the value in the
8554 got at entry m+n bears little relation to the entry m. */
8556 info
->callbacks
->einfo
8557 (_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
8558 input_bfd
, input_section
, rel
->r_offset
,
8564 /* Relocations that need no special processing. */
8565 case R_PPC_LOCAL24PC
:
8566 /* It makes no sense to point a local relocation
8567 at a symbol not in this object. */
8568 if (unresolved_reloc
)
8570 (*info
->callbacks
->undefined_symbol
) (info
,
8571 h
->root
.root
.string
,
8580 case R_PPC_DTPREL16
:
8581 case R_PPC_DTPREL16_LO
:
8582 case R_PPC_DTPREL16_HI
:
8583 case R_PPC_DTPREL16_HA
:
8584 if (htab
->elf
.tls_sec
!= NULL
)
8585 addend
-= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
8588 /* Relocations that may need to be propagated if this is a shared
8591 case R_PPC_TPREL16_LO
:
8592 case R_PPC_TPREL16_HI
:
8593 case R_PPC_TPREL16_HA
:
8595 && h
->root
.type
== bfd_link_hash_undefweak
8596 && h
->dynindx
== -1)
8598 /* Make this relocation against an undefined weak symbol
8599 resolve to zero. This is really just a tweak, since
8600 code using weak externs ought to check that they are
8601 defined before using them. */
8602 bfd_byte
*p
= contents
+ rel
->r_offset
- d_offset
;
8603 unsigned int insn
= bfd_get_32 (output_bfd
, p
);
8604 insn
= _bfd_elf_ppc_at_tprel_transform (insn
, 2);
8606 bfd_put_32 (output_bfd
, insn
, p
);
8609 if (htab
->elf
.tls_sec
!= NULL
)
8610 addend
-= htab
->elf
.tls_sec
->vma
+ TP_OFFSET
;
8611 /* The TPREL16 relocs shouldn't really be used in shared
8612 libs as they will result in DT_TEXTREL being set, but
8613 support them anyway. */
8617 if (htab
->elf
.tls_sec
!= NULL
)
8618 addend
-= htab
->elf
.tls_sec
->vma
+ TP_OFFSET
;
8621 case R_PPC_DTPREL32
:
8622 if (htab
->elf
.tls_sec
!= NULL
)
8623 addend
-= htab
->elf
.tls_sec
->vma
+ DTP_OFFSET
;
8626 case R_PPC_DTPMOD32
:
8632 case R_PPC_REL16_LO
:
8633 case R_PPC_REL16_HI
:
8634 case R_PPC_REL16_HA
:
8635 case R_PPC_REL16DX_HA
:
8639 if (h
== NULL
|| h
== htab
->elf
.hgot
)
8645 case R_PPC_ADDR16_LO
:
8646 case R_PPC_ADDR16_HI
:
8647 case R_PPC_ADDR16_HA
:
8652 case R_PPC_VLE_REL8
:
8653 case R_PPC_VLE_REL15
:
8654 case R_PPC_VLE_REL24
:
8657 case R_PPC_REL14_BRTAKEN
:
8658 case R_PPC_REL14_BRNTAKEN
:
8659 /* If these relocations are not to a named symbol, they can be
8660 handled right here, no need to bother the dynamic linker. */
8661 if (SYMBOL_CALLS_LOCAL (info
, h
)
8662 || h
== htab
->elf
.hgot
)
8668 case R_PPC_ADDR14_BRTAKEN
:
8669 case R_PPC_ADDR14_BRNTAKEN
:
8670 if (h
!= NULL
&& !bfd_link_pic (info
))
8675 if ((input_section
->flags
& SEC_ALLOC
) == 0
8679 if ((bfd_link_pic (info
)
8681 && ((h
->root
.type
== bfd_link_hash_undefined
8682 && (ELF_ST_VISIBILITY (h
->other
) == STV_HIDDEN
8683 || ELF_ST_VISIBILITY (h
->other
) == STV_INTERNAL
))
8684 || (h
->root
.type
== bfd_link_hash_undefweak
8685 && ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)))
8686 && (must_be_dyn_reloc (info
, r_type
)
8687 || !SYMBOL_CALLS_LOCAL (info
, h
)))
8688 || (ELIMINATE_COPY_RELOCS
8689 && !bfd_link_pic (info
)
8694 && !(h
->protected_def
8695 && ppc_elf_hash_entry (h
)->has_addr16_ha
8696 && ppc_elf_hash_entry (h
)->has_addr16_lo
8697 && htab
->params
->pic_fixup
> 0)))
8703 fprintf (stderr
, "ppc_elf_relocate_section needs to "
8704 "create relocation for %s\n",
8705 (h
&& h
->root
.root
.string
8706 ? h
->root
.root
.string
: "<unknown>"));
8709 /* When generating a shared object, these relocations
8710 are copied into the output file to be resolved at run
8712 sreloc
= elf_section_data (input_section
)->sreloc
;
8714 sreloc
= htab
->reliplt
;
8719 outrel
.r_offset
= _bfd_elf_section_offset (output_bfd
, info
,
8722 if (outrel
.r_offset
== (bfd_vma
) -1
8723 || outrel
.r_offset
== (bfd_vma
) -2)
8724 skip
= (int) outrel
.r_offset
;
8725 outrel
.r_offset
+= (input_section
->output_section
->vma
8726 + input_section
->output_offset
);
8729 memset (&outrel
, 0, sizeof outrel
);
8731 && (h
->root
.type
== bfd_link_hash_undefined
8732 || h
->root
.type
== bfd_link_hash_undefweak
))
8733 || !SYMBOL_REFERENCES_LOCAL (info
, h
))
8735 BFD_ASSERT (h
->dynindx
!= -1);
8736 unresolved_reloc
= FALSE
;
8737 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
8738 outrel
.r_addend
= rel
->r_addend
;
8742 outrel
.r_addend
= relocation
+ rel
->r_addend
;
8744 if (r_type
!= R_PPC_ADDR32
)
8750 /* If we get here when building a static
8751 executable, then the libc startup function
8752 responsible for applying indirect function
8753 relocations is going to complain about
8755 If we get here when building a dynamic
8756 executable, it will be because we have
8757 a text relocation. The dynamic loader
8758 will set the text segment writable and
8759 non-executable to apply text relocations.
8760 So we'll segfault when trying to run the
8761 indirection function to resolve the reloc. */
8762 info
->callbacks
->einfo
8763 (_("%P: %H: relocation %s for indirect "
8764 "function %s unsupported\n"),
8765 input_bfd
, input_section
, rel
->r_offset
,
8770 else if (r_symndx
== STN_UNDEF
|| bfd_is_abs_section (sec
))
8772 else if (sec
== NULL
|| sec
->owner
== NULL
)
8774 bfd_set_error (bfd_error_bad_value
);
8781 /* We are turning this relocation into one
8782 against a section symbol. It would be
8783 proper to subtract the symbol's value,
8784 osec->vma, from the emitted reloc addend,
8785 but ld.so expects buggy relocs.
8786 FIXME: Why not always use a zero index? */
8787 osec
= sec
->output_section
;
8788 indx
= elf_section_data (osec
)->dynindx
;
8791 osec
= htab
->elf
.text_index_section
;
8792 indx
= elf_section_data (osec
)->dynindx
;
8794 BFD_ASSERT (indx
!= 0);
8797 printf ("indx=%ld section=%s flags=%08x name=%s\n",
8798 indx
, osec
->name
, osec
->flags
,
8799 h
->root
.root
.string
);
8803 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
8805 else if (ifunc
!= NULL
)
8806 outrel
.r_info
= ELF32_R_INFO (0, R_PPC_IRELATIVE
);
8808 outrel
.r_info
= ELF32_R_INFO (0, R_PPC_RELATIVE
);
8811 loc
= sreloc
->contents
;
8812 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
8813 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
8818 /* This reloc will be computed at runtime. We clear the memory
8819 so that it contains predictable value. */
8821 && ((input_section
->flags
& SEC_ALLOC
) != 0
8822 || ELF32_R_TYPE (outrel
.r_info
) != R_PPC_RELATIVE
))
8824 relocation
= howto
->pc_relative
? outrel
.r_offset
: 0;
8831 case R_PPC_RELAX_PLT
:
8832 case R_PPC_RELAX_PLTREL24
:
8835 struct plt_entry
*ent
;
8836 bfd_vma got2_addend
= 0;
8838 if (r_type
== R_PPC_RELAX_PLTREL24
)
8840 if (bfd_link_pic (info
))
8841 got2_addend
= addend
;
8844 ent
= find_plt_ent (&h
->plt
.plist
, got2
, got2_addend
);
8845 if (htab
->plt_type
== PLT_NEW
)
8846 relocation
= (htab
->glink
->output_section
->vma
8847 + htab
->glink
->output_offset
8848 + ent
->glink_offset
);
8850 relocation
= (htab
->plt
->output_section
->vma
8851 + htab
->plt
->output_offset
8860 size_t insn_offset
= rel
->r_offset
;
8863 if (bfd_link_pic (info
))
8865 relocation
-= (input_section
->output_section
->vma
8866 + input_section
->output_offset
8867 + rel
->r_offset
- 4);
8868 stub
= shared_stub_entry
;
8869 bfd_put_32 (output_bfd
, stub
[0], contents
+ insn_offset
- 12);
8870 bfd_put_32 (output_bfd
, stub
[1], contents
+ insn_offset
- 8);
8871 bfd_put_32 (output_bfd
, stub
[2], contents
+ insn_offset
- 4);
8873 size
= ARRAY_SIZE (shared_stub_entry
) - 3;
8878 size
= ARRAY_SIZE (stub_entry
);
8881 relocation
+= addend
;
8882 if (bfd_link_relocatable (info
))
8885 /* First insn is HA, second is LO. */
8887 insn
|= ((relocation
+ 0x8000) >> 16) & 0xffff;
8888 bfd_put_32 (output_bfd
, insn
, contents
+ insn_offset
);
8892 insn
|= relocation
& 0xffff;
8893 bfd_put_32 (output_bfd
, insn
, contents
+ insn_offset
);
8901 bfd_put_32 (output_bfd
, insn
, contents
+ insn_offset
);
8905 /* Rewrite the reloc and convert one of the trailing nop
8906 relocs to describe this relocation. */
8907 BFD_ASSERT (ELF32_R_TYPE (relend
[-1].r_info
) == R_PPC_NONE
);
8908 /* The relocs are at the bottom 2 bytes */
8909 wrel
->r_offset
= rel
->r_offset
+ d_offset
;
8910 wrel
->r_info
= ELF32_R_INFO (r_symndx
, R_PPC_ADDR16_HA
);
8911 wrel
->r_addend
= rel
->r_addend
;
8912 memmove (wrel
+ 1, wrel
, (relend
- wrel
- 1) * sizeof (*wrel
));
8914 wrel
->r_offset
+= 4;
8915 wrel
->r_info
= ELF32_R_INFO (r_symndx
, R_PPC_ADDR16_LO
);
8919 /* Indirect .sdata relocation. */
8920 case R_PPC_EMB_SDAI16
:
8921 BFD_ASSERT (htab
->sdata
[0].section
!= NULL
);
8922 if (!is_static_defined (htab
->sdata
[0].sym
))
8924 unresolved_reloc
= TRUE
;
8928 = elf_finish_pointer_linker_section (input_bfd
, &htab
->sdata
[0],
8929 h
, relocation
, rel
);
8933 /* Indirect .sdata2 relocation. */
8934 case R_PPC_EMB_SDA2I16
:
8935 BFD_ASSERT (htab
->sdata
[1].section
!= NULL
);
8936 if (!is_static_defined (htab
->sdata
[1].sym
))
8938 unresolved_reloc
= TRUE
;
8942 = elf_finish_pointer_linker_section (input_bfd
, &htab
->sdata
[1],
8943 h
, relocation
, rel
);
8947 /* Handle the TOC16 reloc. We want to use the offset within the .got
8948 section, not the actual VMA. This is appropriate when generating
8949 an embedded ELF object, for which the .got section acts like the
8950 AIX .toc section. */
8951 case R_PPC_TOC16
: /* phony GOT16 relocations */
8952 if (sec
== NULL
|| sec
->output_section
== NULL
)
8954 unresolved_reloc
= TRUE
;
8957 BFD_ASSERT (strcmp (bfd_get_section_name (sec
->owner
, sec
),
8959 || strcmp (bfd_get_section_name (sec
->owner
, sec
),
8962 addend
-= sec
->output_section
->vma
+ sec
->output_offset
+ 0x8000;
8965 case R_PPC_PLTREL24
:
8966 if (h
!= NULL
&& ifunc
== NULL
)
8968 struct plt_entry
*ent
;
8970 ent
= find_plt_ent (&h
->plt
.plist
, got2
,
8971 bfd_link_pic (info
) ? addend
: 0);
8973 || htab
->plt
== NULL
)
8975 /* We didn't make a PLT entry for this symbol. This
8976 happens when statically linking PIC code, or when
8977 using -Bsymbolic. */
8981 /* Relocation is to the entry for this symbol in the
8982 procedure linkage table. */
8983 unresolved_reloc
= FALSE
;
8984 if (htab
->plt_type
== PLT_NEW
)
8985 relocation
= (htab
->glink
->output_section
->vma
8986 + htab
->glink
->output_offset
8987 + ent
->glink_offset
);
8989 relocation
= (htab
->plt
->output_section
->vma
8990 + htab
->plt
->output_offset
8995 /* R_PPC_PLTREL24 is rather special. If non-zero, the
8996 addend specifies the GOT pointer offset within .got2.
8997 Don't apply it to the relocation field. */
9001 /* Relocate against _SDA_BASE_. */
9002 case R_PPC_SDAREL16
:
9005 struct elf_link_hash_entry
*sda
= htab
->sdata
[0].sym
;
9008 || sec
->output_section
== NULL
9009 || !is_static_defined (sda
))
9011 unresolved_reloc
= TRUE
;
9014 addend
-= SYM_VAL (sda
);
9016 name
= bfd_get_section_name (output_bfd
, sec
->output_section
);
9017 if (!(strcmp (name
, ".sdata") == 0
9018 || strcmp (name
, ".sbss") == 0))
9020 info
->callbacks
->einfo
9021 (_("%P: %B: the target (%s) of a %s relocation is "
9022 "in the wrong output section (%s)\n"),
9031 /* Relocate against _SDA2_BASE_. */
9032 case R_PPC_EMB_SDA2REL
:
9035 struct elf_link_hash_entry
*sda
= htab
->sdata
[1].sym
;
9038 || sec
->output_section
== NULL
9039 || !is_static_defined (sda
))
9041 unresolved_reloc
= TRUE
;
9044 addend
-= SYM_VAL (sda
);
9046 name
= bfd_get_section_name (output_bfd
, sec
->output_section
);
9047 if (!(strcmp (name
, ".sdata2") == 0
9048 || strcmp (name
, ".sbss2") == 0))
9050 info
->callbacks
->einfo
9051 (_("%P: %B: the target (%s) of a %s relocation is "
9052 "in the wrong output section (%s)\n"),
9061 case R_PPC_VLE_LO16A
:
9062 relocation
= relocation
+ addend
;
9063 ppc_elf_vle_split16 (output_bfd
, contents
+ rel
->r_offset
,
9064 relocation
, split16a_type
);
9067 case R_PPC_VLE_LO16D
:
9068 relocation
= relocation
+ addend
;
9069 ppc_elf_vle_split16 (output_bfd
, contents
+ rel
->r_offset
,
9070 relocation
, split16d_type
);
9073 case R_PPC_VLE_HI16A
:
9074 relocation
= (relocation
+ addend
) >> 16;
9075 ppc_elf_vle_split16 (output_bfd
, contents
+ rel
->r_offset
,
9076 relocation
, split16a_type
);
9079 case R_PPC_VLE_HI16D
:
9080 relocation
= (relocation
+ addend
) >> 16;
9081 ppc_elf_vle_split16 (output_bfd
, contents
+ rel
->r_offset
,
9082 relocation
, split16d_type
);
9085 case R_PPC_VLE_HA16A
:
9086 relocation
= (relocation
+ addend
+ 0x8000) >> 16;
9087 ppc_elf_vle_split16 (output_bfd
, contents
+ rel
->r_offset
,
9088 relocation
, split16a_type
);
9091 case R_PPC_VLE_HA16D
:
9092 relocation
= (relocation
+ addend
+ 0x8000) >> 16;
9093 ppc_elf_vle_split16 (output_bfd
, contents
+ rel
->r_offset
,
9094 relocation
, split16d_type
);
9097 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
9098 case R_PPC_EMB_SDA21
:
9099 case R_PPC_VLE_SDA21
:
9100 case R_PPC_EMB_RELSDA
:
9101 case R_PPC_VLE_SDA21_LO
:
9106 struct elf_link_hash_entry
*sda
= NULL
;
9108 if (sec
== NULL
|| sec
->output_section
== NULL
)
9110 unresolved_reloc
= TRUE
;
9114 name
= bfd_get_section_name (output_bfd
, sec
->output_section
);
9115 if (strcmp (name
, ".sdata") == 0
9116 || strcmp (name
, ".sbss") == 0)
9119 sda
= htab
->sdata
[0].sym
;
9121 else if (strcmp (name
, ".sdata2") == 0
9122 || strcmp (name
, ".sbss2") == 0)
9125 sda
= htab
->sdata
[1].sym
;
9127 else if (strcmp (name
, ".PPC.EMB.sdata0") == 0
9128 || strcmp (name
, ".PPC.EMB.sbss0") == 0)
9134 info
->callbacks
->einfo
9135 (_("%P: %B: the target (%s) of a %s relocation is "
9136 "in the wrong output section (%s)\n"),
9142 bfd_set_error (bfd_error_bad_value
);
9149 if (!is_static_defined (sda
))
9151 unresolved_reloc
= TRUE
;
9154 addend
-= SYM_VAL (sda
);
9157 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
);
9159 && (r_type
== R_PPC_VLE_SDA21
9160 || r_type
== R_PPC_VLE_SDA21_LO
))
9162 relocation
= relocation
+ addend
;
9165 /* Force e_li insn, keeping RT from original insn. */
9169 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
9170 /* Top 4 bits of value to 17..20. */
9171 insn
|= (relocation
& 0xf0000) >> 5;
9172 /* Next 5 bits of the value to 11..15. */
9173 insn
|= (relocation
& 0xf800) << 5;
9174 /* And the final 11 bits of the value to bits 21 to 31. */
9175 insn
|= relocation
& 0x7ff;
9177 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
9179 if (r_type
== R_PPC_VLE_SDA21
9180 && ((relocation
+ 0x80000) & 0xffffffff) > 0x100000)
9184 else if (r_type
== R_PPC_EMB_SDA21
9185 || r_type
== R_PPC_VLE_SDA21
9186 || r_type
== R_PPC_VLE_SDA21_LO
)
9188 /* Fill in register field. */
9189 insn
= (insn
& ~RA_REGISTER_MASK
) | (reg
<< RA_REGISTER_SHIFT
);
9191 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
9195 case R_PPC_VLE_SDAREL_LO16A
:
9196 case R_PPC_VLE_SDAREL_LO16D
:
9197 case R_PPC_VLE_SDAREL_HI16A
:
9198 case R_PPC_VLE_SDAREL_HI16D
:
9199 case R_PPC_VLE_SDAREL_HA16A
:
9200 case R_PPC_VLE_SDAREL_HA16D
:
9205 struct elf_link_hash_entry
*sda
= NULL
;
9207 if (sec
== NULL
|| sec
->output_section
== NULL
)
9209 unresolved_reloc
= TRUE
;
9213 name
= bfd_get_section_name (output_bfd
, sec
->output_section
);
9214 if (strcmp (name
, ".sdata") == 0
9215 || strcmp (name
, ".sbss") == 0)
9218 sda
= htab
->sdata
[0].sym
;
9220 else if (strcmp (name
, ".sdata2") == 0
9221 || strcmp (name
, ".sbss2") == 0)
9224 sda
= htab
->sdata
[1].sym
;
9228 (*_bfd_error_handler
)
9229 (_("%B: the target (%s) of a %s relocation is "
9230 "in the wrong output section (%s)"),
9236 bfd_set_error (bfd_error_bad_value
);
9243 if (!is_static_defined (sda
))
9245 unresolved_reloc
= TRUE
;
9250 value
= (sda
->root
.u
.def
.section
->output_section
->vma
9251 + sda
->root
.u
.def
.section
->output_offset
9254 if (r_type
== R_PPC_VLE_SDAREL_LO16A
)
9255 ppc_elf_vle_split16 (output_bfd
, contents
+ rel
->r_offset
,
9256 value
, split16a_type
);
9257 else if (r_type
== R_PPC_VLE_SDAREL_LO16D
)
9258 ppc_elf_vle_split16 (output_bfd
, contents
+ rel
->r_offset
,
9259 value
, split16d_type
);
9260 else if (r_type
== R_PPC_VLE_SDAREL_HI16A
)
9262 value
= value
>> 16;
9263 ppc_elf_vle_split16 (output_bfd
, contents
+ rel
->r_offset
,
9264 value
, split16a_type
);
9266 else if (r_type
== R_PPC_VLE_SDAREL_HI16D
)
9268 value
= value
>> 16;
9269 ppc_elf_vle_split16 (output_bfd
, contents
+ rel
->r_offset
,
9270 value
, split16d_type
);
9272 else if (r_type
== R_PPC_VLE_SDAREL_HA16A
)
9274 value
= (value
+ 0x8000) >> 16;
9275 ppc_elf_vle_split16 (output_bfd
, contents
+ rel
->r_offset
,
9276 value
, split16a_type
);
9278 else if (r_type
== R_PPC_VLE_SDAREL_HA16D
)
9280 value
= (value
+ 0x8000) >> 16;
9281 ppc_elf_vle_split16 (output_bfd
, contents
+ rel
->r_offset
,
9282 value
, split16d_type
);
9287 /* Relocate against the beginning of the section. */
9289 case R_PPC_SECTOFF_LO
:
9290 case R_PPC_SECTOFF_HI
:
9291 case R_PPC_SECTOFF_HA
:
9292 if (sec
== NULL
|| sec
->output_section
== NULL
)
9294 unresolved_reloc
= TRUE
;
9297 addend
-= sec
->output_section
->vma
;
9300 /* Negative relocations. */
9301 case R_PPC_EMB_NADDR32
:
9302 case R_PPC_EMB_NADDR16
:
9303 case R_PPC_EMB_NADDR16_LO
:
9304 case R_PPC_EMB_NADDR16_HI
:
9305 case R_PPC_EMB_NADDR16_HA
:
9306 addend
-= 2 * relocation
;
9310 case R_PPC_GLOB_DAT
:
9311 case R_PPC_JMP_SLOT
:
9312 case R_PPC_RELATIVE
:
9313 case R_PPC_IRELATIVE
:
9315 case R_PPC_PLTREL32
:
9316 case R_PPC_PLT16_LO
:
9317 case R_PPC_PLT16_HI
:
9318 case R_PPC_PLT16_HA
:
9320 case R_PPC_EMB_RELSEC16
:
9321 case R_PPC_EMB_RELST_LO
:
9322 case R_PPC_EMB_RELST_HI
:
9323 case R_PPC_EMB_RELST_HA
:
9324 case R_PPC_EMB_BIT_FLD
:
9325 info
->callbacks
->einfo
9326 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
9331 bfd_set_error (bfd_error_invalid_operation
);
9336 /* Do any further special processing. */
9342 case R_PPC_ADDR16_HA
:
9343 case R_PPC_REL16_HA
:
9344 case R_PPC_REL16DX_HA
:
9345 case R_PPC_SECTOFF_HA
:
9346 case R_PPC_TPREL16_HA
:
9347 case R_PPC_DTPREL16_HA
:
9348 case R_PPC_EMB_NADDR16_HA
:
9349 case R_PPC_EMB_RELST_HA
:
9350 /* It's just possible that this symbol is a weak symbol
9351 that's not actually defined anywhere. In that case,
9352 'sec' would be NULL, and we should leave the symbol
9353 alone (it will be set to zero elsewhere in the link). */
9358 case R_PPC_PLT16_HA
:
9359 case R_PPC_GOT16_HA
:
9360 case R_PPC_GOT_TLSGD16_HA
:
9361 case R_PPC_GOT_TLSLD16_HA
:
9362 case R_PPC_GOT_TPREL16_HA
:
9363 case R_PPC_GOT_DTPREL16_HA
:
9364 /* Add 0x10000 if sign bit in 0:15 is set.
9365 Bits 0:15 are not used. */
9370 case R_PPC_ADDR16_LO
:
9372 case R_PPC_GOT16_LO
:
9373 case R_PPC_SDAREL16
:
9375 case R_PPC_SECTOFF_LO
:
9376 case R_PPC_DTPREL16
:
9377 case R_PPC_DTPREL16_LO
:
9379 case R_PPC_TPREL16_LO
:
9380 case R_PPC_GOT_TLSGD16
:
9381 case R_PPC_GOT_TLSGD16_LO
:
9382 case R_PPC_GOT_TLSLD16
:
9383 case R_PPC_GOT_TLSLD16_LO
:
9384 case R_PPC_GOT_DTPREL16
:
9385 case R_PPC_GOT_DTPREL16_LO
:
9386 case R_PPC_GOT_TPREL16
:
9387 case R_PPC_GOT_TPREL16_LO
:
9389 /* The 32-bit ABI lacks proper relocations to deal with
9390 certain 64-bit instructions. Prevent damage to bits
9391 that make up part of the insn opcode. */
9392 unsigned int insn
, mask
, lobit
;
9394 insn
= bfd_get_32 (output_bfd
,
9395 contents
+ rel
->r_offset
- d_offset
);
9397 if (is_insn_ds_form (insn
))
9399 else if (is_insn_dq_form (insn
))
9403 relocation
+= addend
;
9404 addend
= insn
& mask
;
9405 lobit
= mask
& relocation
;
9408 relocation
^= lobit
;
9409 info
->callbacks
->einfo
9410 (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
9411 input_bfd
, input_section
, rel
->r_offset
,
9412 howto
->name
, sym_name
, mask
+ 1);
9413 bfd_set_error (bfd_error_bad_value
);
9421 fprintf (stderr
, "\ttype = %s (%d), name = %s, symbol index = %ld, "
9422 "offset = %ld, addend = %ld\n",
9427 (long) rel
->r_offset
,
9431 if (unresolved_reloc
9432 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
9434 && _bfd_elf_section_offset (output_bfd
, info
, input_section
,
9435 rel
->r_offset
) != (bfd_vma
) -1)
9437 info
->callbacks
->einfo
9438 (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
9439 input_bfd
, input_section
, rel
->r_offset
,
9445 /* 16-bit fields in insns mostly have signed values, but a
9446 few insns have 16-bit unsigned values. Really, we should
9447 have different reloc types. */
9448 if (howto
->complain_on_overflow
!= complain_overflow_dont
9449 && howto
->dst_mask
== 0xffff
9450 && (input_section
->flags
& SEC_CODE
) != 0)
9452 enum complain_overflow complain
= complain_overflow_signed
;
9454 if ((elf_section_flags (input_section
) & SHF_PPC_VLE
) == 0)
9458 insn
= bfd_get_32 (input_bfd
, contents
+ (rel
->r_offset
& ~3));
9459 if ((insn
& (0x3f << 26)) == 10u << 26 /* cmpli */)
9460 complain
= complain_overflow_bitfield
;
9461 else if ((insn
& (0x3f << 26)) == 28u << 26 /* andi */
9462 || (insn
& (0x3f << 26)) == 24u << 26 /* ori */
9463 || (insn
& (0x3f << 26)) == 26u << 26 /* xori */)
9464 complain
= complain_overflow_unsigned
;
9466 if (howto
->complain_on_overflow
!= complain
)
9469 alt_howto
.complain_on_overflow
= complain
;
9474 if (r_type
== R_PPC_REL16DX_HA
)
9476 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
9477 if (rel
->r_offset
+ 4 > input_section
->size
)
9478 r
= bfd_reloc_outofrange
;
9483 relocation
+= addend
;
9484 relocation
-= (rel
->r_offset
9485 + input_section
->output_offset
9486 + input_section
->output_section
->vma
);
9488 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
9490 insn
|= (relocation
& 0xffc1) | ((relocation
& 0x3e) << 15);
9491 bfd_put_32 (input_bfd
, insn
, contents
+ rel
->r_offset
);
9496 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
, contents
,
9497 rel
->r_offset
, relocation
, addend
);
9499 if (r
!= bfd_reloc_ok
)
9501 if (r
== bfd_reloc_overflow
)
9504 /* On code like "if (foo) foo();" don't report overflow
9505 on a branch to zero when foo is undefined. */
9508 && (h
->root
.type
== bfd_link_hash_undefweak
9509 || h
->root
.type
== bfd_link_hash_undefined
)
9510 && is_branch_reloc (r_type
)))
9511 info
->callbacks
->reloc_overflow
9512 (info
, (h
? &h
->root
: NULL
), sym_name
, howto
->name
,
9513 rel
->r_addend
, input_bfd
, input_section
, rel
->r_offset
);
9517 info
->callbacks
->einfo
9518 (_("%P: %H: %s reloc against `%s': error %d\n"),
9519 input_bfd
, input_section
, rel
->r_offset
,
9520 howto
->name
, sym_name
, (int) r
);
9531 Elf_Internal_Shdr
*rel_hdr
;
9532 size_t deleted
= rel
- wrel
;
9534 rel_hdr
= _bfd_elf_single_rel_hdr (input_section
->output_section
);
9535 rel_hdr
->sh_size
-= rel_hdr
->sh_entsize
* deleted
;
9536 if (rel_hdr
->sh_size
== 0)
9538 /* It is too late to remove an empty reloc section. Leave
9540 ??? What is wrong with an empty section??? */
9541 rel_hdr
->sh_size
= rel_hdr
->sh_entsize
;
9546 rel_hdr
= _bfd_elf_single_rel_hdr (input_section
);
9547 rel_hdr
->sh_size
-= rel_hdr
->sh_entsize
* deleted
;
9548 input_section
->reloc_count
-= deleted
;
9552 fprintf (stderr
, "\n");
9555 if (input_section
->sec_info_type
== SEC_INFO_TYPE_TARGET
9556 && input_section
->size
!= input_section
->rawsize
9557 && (strcmp (input_section
->output_section
->name
, ".init") == 0
9558 || strcmp (input_section
->output_section
->name
, ".fini") == 0))
9560 /* Branch around the trampolines. */
9561 unsigned int insn
= B
+ input_section
->size
- input_section
->rawsize
;
9562 bfd_put_32 (input_bfd
, insn
, contents
+ input_section
->rawsize
);
9565 if (htab
->params
->ppc476_workaround
9566 && input_section
->sec_info_type
== SEC_INFO_TYPE_TARGET
9567 && (!bfd_link_relocatable (info
)
9568 || (input_section
->output_section
->alignment_power
9569 >= htab
->params
->pagesize_p2
)))
9571 bfd_vma start_addr
, end_addr
, addr
;
9572 bfd_vma pagesize
= (bfd_vma
) 1 << htab
->params
->pagesize_p2
;
9574 if (relax_info
->workaround_size
!= 0)
9580 bfd_put_32 (input_bfd
, BA
, fill
);
9581 p
= contents
+ input_section
->size
- relax_info
->workaround_size
;
9582 n
= relax_info
->workaround_size
>> 2;
9585 memcpy (p
, fill
, 4);
9590 /* The idea is: Replace the last instruction on a page with a
9591 branch to a patch area. Put the insn there followed by a
9592 branch back to the next page. Complicated a little by
9593 needing to handle moved conditional branches, and by not
9594 wanting to touch data-in-text. */
9596 start_addr
= (input_section
->output_section
->vma
9597 + input_section
->output_offset
);
9598 end_addr
= (start_addr
+ input_section
->size
9599 - relax_info
->workaround_size
);
9600 for (addr
= ((start_addr
& -pagesize
) + pagesize
- 4);
9604 bfd_vma offset
= addr
- start_addr
;
9605 Elf_Internal_Rela
*lo
, *hi
;
9606 bfd_boolean is_data
;
9607 bfd_vma patch_off
, patch_addr
;
9610 /* Do we have a data reloc at this offset? If so, leave
9618 rel
= lo
+ (hi
- lo
) / 2;
9619 if (rel
->r_offset
< offset
)
9621 else if (rel
->r_offset
> offset
+ 3)
9625 switch (ELF32_R_TYPE (rel
->r_info
))
9642 /* Some instructions can be left alone too. Unconditional
9643 branches, except for bcctr with BO=0x14 (bctr, bctrl),
9644 avoid the icache failure.
9646 The problem occurs due to prefetch across a page boundary
9647 where stale instructions can be fetched from the next
9648 page, and the mechanism for flushing these bad
9649 instructions fails under certain circumstances. The
9650 unconditional branches:
9651 1) Branch: b, bl, ba, bla,
9652 2) Branch Conditional: bc, bca, bcl, bcla,
9653 3) Branch Conditional to Link Register: bclr, bclrl,
9654 where (2) and (3) have BO=0x14 making them unconditional,
9655 prevent the bad prefetch because the prefetch itself is
9656 affected by these instructions. This happens even if the
9657 instruction is not executed.
9662 . addi 9,9,new_page@l
9669 The bctr is not predicted taken due to ctr not being
9670 ready, so prefetch continues on past the bctr into the
9671 new page which might have stale instructions. If they
9672 fail to be flushed, then they will be executed after the
9673 bctr executes. Either of the following modifications
9674 prevent the bad prefetch from happening in the first
9677 . lis 9,new_page@ha lis 9,new_page@ha
9678 . addi 9,9,new_page@l addi 9,9,new_page@l
9681 . nop b somewhere_else
9682 . b somewhere_else nop
9683 . new_page: new_page:
9685 insn
= bfd_get_32 (input_bfd
, contents
+ offset
);
9686 if ((insn
& (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */
9687 || ((insn
& (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/
9688 && (insn
& (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */
9689 || ((insn
& (0x3f << 26)) == (19u << 26)
9690 && (insn
& (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */
9691 && (insn
& (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */
9694 patch_addr
= (start_addr
+ input_section
->size
9695 - relax_info
->workaround_size
);
9696 patch_addr
= (patch_addr
+ 15) & -16;
9697 patch_off
= patch_addr
- start_addr
;
9698 bfd_put_32 (input_bfd
, B
+ patch_off
- offset
, contents
+ offset
);
9701 && rel
->r_offset
>= offset
9702 && rel
->r_offset
< offset
+ 4)
9706 /* If the insn we are patching had a reloc, adjust the
9707 reloc r_offset so that the reloc applies to the moved
9708 location. This matters for -r and --emit-relocs. */
9709 if (rel
+ 1 != relend
)
9711 Elf_Internal_Rela tmp
= *rel
;
9713 /* Keep the relocs sorted by r_offset. */
9714 memmove (rel
, rel
+ 1, (relend
- (rel
+ 1)) * sizeof (*rel
));
9717 relend
[-1].r_offset
+= patch_off
- offset
;
9719 /* Adjust REL16 addends too. */
9720 switch (ELF32_R_TYPE (relend
[-1].r_info
))
9723 case R_PPC_REL16_LO
:
9724 case R_PPC_REL16_HI
:
9725 case R_PPC_REL16_HA
:
9726 relend
[-1].r_addend
+= patch_off
- offset
;
9732 /* If we are building a PIE or shared library with
9733 non-PIC objects, perhaps we had a dynamic reloc too?
9734 If so, the dynamic reloc must move with the insn. */
9735 sreloc
= elf_section_data (input_section
)->sreloc
;
9738 Elf32_External_Rela
*slo
, *shi
, *srelend
;
9741 slo
= (Elf32_External_Rela
*) sreloc
->contents
;
9742 shi
= srelend
= slo
+ sreloc
->reloc_count
;
9743 soffset
= (offset
+ input_section
->output_section
->vma
9744 + input_section
->output_offset
);
9747 Elf32_External_Rela
*srel
= slo
+ (shi
- slo
) / 2;
9748 bfd_elf32_swap_reloca_in (output_bfd
, (bfd_byte
*) srel
,
9750 if (outrel
.r_offset
< soffset
)
9752 else if (outrel
.r_offset
> soffset
+ 3)
9756 if (srel
+ 1 != srelend
)
9758 memmove (srel
, srel
+ 1,
9759 (srelend
- (srel
+ 1)) * sizeof (*srel
));
9762 outrel
.r_offset
+= patch_off
- offset
;
9763 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,
9773 if ((insn
& (0x3f << 26)) == (16u << 26) /* bc */
9774 && (insn
& 2) == 0 /* relative */)
9776 bfd_vma delta
= ((insn
& 0xfffc) ^ 0x8000) - 0x8000;
9778 delta
+= offset
- patch_off
;
9779 if (bfd_link_relocatable (info
) && rel
!= NULL
)
9781 if (!bfd_link_relocatable (info
) && rel
!= NULL
)
9783 enum elf_ppc_reloc_type r_type
;
9785 r_type
= ELF32_R_TYPE (relend
[-1].r_info
);
9786 if (r_type
== R_PPC_REL14_BRTAKEN
)
9787 insn
|= BRANCH_PREDICT_BIT
;
9788 else if (r_type
== R_PPC_REL14_BRNTAKEN
)
9789 insn
&= ~BRANCH_PREDICT_BIT
;
9791 BFD_ASSERT (r_type
== R_PPC_REL14
);
9793 if ((r_type
== R_PPC_REL14_BRTAKEN
9794 || r_type
== R_PPC_REL14_BRNTAKEN
)
9795 && delta
+ 0x8000 < 0x10000
9796 && (bfd_signed_vma
) delta
< 0)
9797 insn
^= BRANCH_PREDICT_BIT
;
9799 if (delta
+ 0x8000 < 0x10000)
9801 bfd_put_32 (input_bfd
,
9802 (insn
& ~0xfffc) | (delta
& 0xfffc),
9803 contents
+ patch_off
);
9805 bfd_put_32 (input_bfd
,
9806 B
| ((offset
+ 4 - patch_off
) & 0x3fffffc),
9807 contents
+ patch_off
);
9814 unsigned int r_sym
= ELF32_R_SYM (relend
[-1].r_info
);
9816 relend
[-1].r_offset
+= 8;
9817 relend
[-1].r_info
= ELF32_R_INFO (r_sym
, R_PPC_REL24
);
9819 bfd_put_32 (input_bfd
,
9820 (insn
& ~0xfffc) | 8,
9821 contents
+ patch_off
);
9823 bfd_put_32 (input_bfd
,
9824 B
| ((offset
+ 4 - patch_off
) & 0x3fffffc),
9825 contents
+ patch_off
);
9827 bfd_put_32 (input_bfd
,
9828 B
| ((delta
- 8) & 0x3fffffc),
9829 contents
+ patch_off
);
9835 bfd_put_32 (input_bfd
, insn
, contents
+ patch_off
);
9837 bfd_put_32 (input_bfd
,
9838 B
| ((offset
+ 4 - patch_off
) & 0x3fffffc),
9839 contents
+ patch_off
);
9842 BFD_ASSERT (patch_off
<= input_section
->size
);
9843 relax_info
->workaround_size
= input_section
->size
- patch_off
;
9850 /* Finish up dynamic symbol handling. We set the contents of various
9851 dynamic sections here. */
9854 ppc_elf_finish_dynamic_symbol (bfd
*output_bfd
,
9855 struct bfd_link_info
*info
,
9856 struct elf_link_hash_entry
*h
,
9857 Elf_Internal_Sym
*sym
)
9859 struct ppc_elf_link_hash_table
*htab
;
9860 struct plt_entry
*ent
;
9861 bfd_boolean doneone
;
9864 fprintf (stderr
, "ppc_elf_finish_dynamic_symbol called for %s",
9865 h
->root
.root
.string
);
9868 htab
= ppc_elf_hash_table (info
);
9869 BFD_ASSERT (htab
->elf
.dynobj
!= NULL
);
9872 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
9873 if (ent
->plt
.offset
!= (bfd_vma
) -1)
9877 Elf_Internal_Rela rela
;
9879 bfd_vma reloc_index
;
9881 if (htab
->plt_type
== PLT_NEW
9882 || !htab
->elf
.dynamic_sections_created
9883 || h
->dynindx
== -1)
9884 reloc_index
= ent
->plt
.offset
/ 4;
9887 reloc_index
= ((ent
->plt
.offset
- htab
->plt_initial_entry_size
)
9888 / htab
->plt_slot_size
);
9889 if (reloc_index
> PLT_NUM_SINGLE_ENTRIES
9890 && htab
->plt_type
== PLT_OLD
)
9891 reloc_index
-= (reloc_index
- PLT_NUM_SINGLE_ENTRIES
) / 2;
9894 /* This symbol has an entry in the procedure linkage table.
9896 if (htab
->plt_type
== PLT_VXWORKS
9897 && htab
->elf
.dynamic_sections_created
9898 && h
->dynindx
!= -1)
9901 const bfd_vma
*plt_entry
;
9903 /* The first three entries in .got.plt are reserved. */
9904 got_offset
= (reloc_index
+ 3) * 4;
9906 /* Use the right PLT. */
9907 plt_entry
= bfd_link_pic (info
) ? ppc_elf_vxworks_pic_plt_entry
9908 : ppc_elf_vxworks_plt_entry
;
9910 /* Fill in the .plt on VxWorks. */
9911 if (bfd_link_pic (info
))
9913 bfd_put_32 (output_bfd
,
9914 plt_entry
[0] | PPC_HA (got_offset
),
9915 htab
->plt
->contents
+ ent
->plt
.offset
+ 0);
9916 bfd_put_32 (output_bfd
,
9917 plt_entry
[1] | PPC_LO (got_offset
),
9918 htab
->plt
->contents
+ ent
->plt
.offset
+ 4);
9922 bfd_vma got_loc
= got_offset
+ SYM_VAL (htab
->elf
.hgot
);
9924 bfd_put_32 (output_bfd
,
9925 plt_entry
[0] | PPC_HA (got_loc
),
9926 htab
->plt
->contents
+ ent
->plt
.offset
+ 0);
9927 bfd_put_32 (output_bfd
,
9928 plt_entry
[1] | PPC_LO (got_loc
),
9929 htab
->plt
->contents
+ ent
->plt
.offset
+ 4);
9932 bfd_put_32 (output_bfd
, plt_entry
[2],
9933 htab
->plt
->contents
+ ent
->plt
.offset
+ 8);
9934 bfd_put_32 (output_bfd
, plt_entry
[3],
9935 htab
->plt
->contents
+ ent
->plt
.offset
+ 12);
9937 /* This instruction is an immediate load. The value loaded is
9938 the byte offset of the R_PPC_JMP_SLOT relocation from the
9939 start of the .rela.plt section. The value is stored in the
9940 low-order 16 bits of the load instruction. */
9941 /* NOTE: It appears that this is now an index rather than a
9942 prescaled offset. */
9943 bfd_put_32 (output_bfd
,
9944 plt_entry
[4] | reloc_index
,
9945 htab
->plt
->contents
+ ent
->plt
.offset
+ 16);
9946 /* This instruction is a PC-relative branch whose target is
9947 the start of the PLT section. The address of this branch
9948 instruction is 20 bytes beyond the start of this PLT entry.
9949 The address is encoded in bits 6-29, inclusive. The value
9950 stored is right-shifted by two bits, permitting a 26-bit
9952 bfd_put_32 (output_bfd
,
9954 | (-(ent
->plt
.offset
+ 20) & 0x03fffffc)),
9955 htab
->plt
->contents
+ ent
->plt
.offset
+ 20);
9956 bfd_put_32 (output_bfd
, plt_entry
[6],
9957 htab
->plt
->contents
+ ent
->plt
.offset
+ 24);
9958 bfd_put_32 (output_bfd
, plt_entry
[7],
9959 htab
->plt
->contents
+ ent
->plt
.offset
+ 28);
9961 /* Fill in the GOT entry corresponding to this PLT slot with
9962 the address immediately after the "bctr" instruction
9963 in this PLT entry. */
9964 bfd_put_32 (output_bfd
, (htab
->plt
->output_section
->vma
9965 + htab
->plt
->output_offset
9966 + ent
->plt
.offset
+ 16),
9967 htab
->sgotplt
->contents
+ got_offset
);
9969 if (!bfd_link_pic (info
))
9971 /* Fill in a couple of entries in .rela.plt.unloaded. */
9972 loc
= htab
->srelplt2
->contents
9973 + ((VXWORKS_PLTRESOLVE_RELOCS
+ reloc_index
9974 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS
)
9975 * sizeof (Elf32_External_Rela
));
9977 /* Provide the @ha relocation for the first instruction. */
9978 rela
.r_offset
= (htab
->plt
->output_section
->vma
9979 + htab
->plt
->output_offset
9980 + ent
->plt
.offset
+ 2);
9981 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
,
9983 rela
.r_addend
= got_offset
;
9984 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
9985 loc
+= sizeof (Elf32_External_Rela
);
9987 /* Provide the @l relocation for the second instruction. */
9988 rela
.r_offset
= (htab
->plt
->output_section
->vma
9989 + htab
->plt
->output_offset
9990 + ent
->plt
.offset
+ 6);
9991 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
,
9993 rela
.r_addend
= got_offset
;
9994 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
9995 loc
+= sizeof (Elf32_External_Rela
);
9997 /* Provide a relocation for the GOT entry corresponding to this
9998 PLT slot. Point it at the middle of the .plt entry. */
9999 rela
.r_offset
= (htab
->sgotplt
->output_section
->vma
10000 + htab
->sgotplt
->output_offset
10002 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hplt
->indx
,
10004 rela
.r_addend
= ent
->plt
.offset
+ 16;
10005 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
10008 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
10009 In particular, the offset for the relocation is not the
10010 address of the PLT entry for this function, as specified
10011 by the ABI. Instead, the offset is set to the address of
10012 the GOT slot for this function. See EABI 4.4.4.1. */
10013 rela
.r_offset
= (htab
->sgotplt
->output_section
->vma
10014 + htab
->sgotplt
->output_offset
10020 asection
*splt
= htab
->plt
;
10021 if (!htab
->elf
.dynamic_sections_created
10022 || h
->dynindx
== -1)
10025 rela
.r_offset
= (splt
->output_section
->vma
10026 + splt
->output_offset
10027 + ent
->plt
.offset
);
10028 if (htab
->plt_type
== PLT_OLD
10029 || !htab
->elf
.dynamic_sections_created
10030 || h
->dynindx
== -1)
10032 /* We don't need to fill in the .plt. The ppc dynamic
10033 linker will fill it in. */
10037 bfd_vma val
= (htab
->glink_pltresolve
+ ent
->plt
.offset
10038 + htab
->glink
->output_section
->vma
10039 + htab
->glink
->output_offset
);
10040 bfd_put_32 (output_bfd
, val
,
10041 splt
->contents
+ ent
->plt
.offset
);
10045 /* Fill in the entry in the .rela.plt section. */
10047 if (!htab
->elf
.dynamic_sections_created
10048 || h
->dynindx
== -1)
10050 BFD_ASSERT (h
->type
== STT_GNU_IFUNC
10052 && (h
->root
.type
== bfd_link_hash_defined
10053 || h
->root
.type
== bfd_link_hash_defweak
));
10054 rela
.r_info
= ELF32_R_INFO (0, R_PPC_IRELATIVE
);
10055 rela
.r_addend
= SYM_VAL (h
);
10058 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_PPC_JMP_SLOT
);
10060 if (!htab
->elf
.dynamic_sections_created
10061 || h
->dynindx
== -1)
10062 loc
= (htab
->reliplt
->contents
10063 + (htab
->reliplt
->reloc_count
++
10064 * sizeof (Elf32_External_Rela
)));
10066 loc
= (htab
->relplt
->contents
10067 + reloc_index
* sizeof (Elf32_External_Rela
));
10068 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
10070 if (!h
->def_regular
)
10072 /* Mark the symbol as undefined, rather than as
10073 defined in the .plt section. Leave the value if
10074 there were any relocations where pointer equality
10075 matters (this is a clue for the dynamic linker, to
10076 make function pointer comparisons work between an
10077 application and shared library), otherwise set it
10079 sym
->st_shndx
= SHN_UNDEF
;
10080 if (!h
->pointer_equality_needed
)
10082 else if (!h
->ref_regular_nonweak
)
10084 /* This breaks function pointer comparisons, but
10085 that is better than breaking tests for a NULL
10086 function pointer. */
10090 else if (h
->type
== STT_GNU_IFUNC
10091 && !bfd_link_pic (info
))
10093 /* Set the value of ifunc symbols in a non-pie
10094 executable to the glink entry. This is to avoid
10095 text relocations. We can't do this for ifunc in
10096 allocate_dynrelocs, as we do for normal dynamic
10097 function symbols with plt entries, because we need
10098 to keep the original value around for the ifunc
10100 sym
->st_shndx
= (_bfd_elf_section_from_bfd_section
10101 (output_bfd
, htab
->glink
->output_section
));
10102 sym
->st_value
= (ent
->glink_offset
10103 + htab
->glink
->output_offset
10104 + htab
->glink
->output_section
->vma
);
10109 if (htab
->plt_type
== PLT_NEW
10110 || !htab
->elf
.dynamic_sections_created
10111 || h
->dynindx
== -1)
10114 asection
*splt
= htab
->plt
;
10115 if (!htab
->elf
.dynamic_sections_created
10116 || h
->dynindx
== -1)
10119 p
= (unsigned char *) htab
->glink
->contents
+ ent
->glink_offset
;
10121 if (h
== htab
->tls_get_addr
&& !htab
->params
->no_tls_get_addr_opt
)
10123 bfd_put_32 (output_bfd
, LWZ_11_3
, p
);
10125 bfd_put_32 (output_bfd
, LWZ_12_3
+ 4, p
);
10127 bfd_put_32 (output_bfd
, MR_0_3
, p
);
10129 bfd_put_32 (output_bfd
, CMPWI_11_0
, p
);
10131 bfd_put_32 (output_bfd
, ADD_3_12_2
, p
);
10133 bfd_put_32 (output_bfd
, BEQLR
, p
);
10135 bfd_put_32 (output_bfd
, MR_3_0
, p
);
10137 bfd_put_32 (output_bfd
, NOP
, p
);
10141 write_glink_stub (ent
, splt
, p
, info
);
10143 if (!bfd_link_pic (info
))
10144 /* We only need one non-PIC glink stub. */
10154 Elf_Internal_Rela rela
;
10157 /* This symbols needs a copy reloc. Set it up. */
10160 fprintf (stderr
, ", copy");
10163 BFD_ASSERT (h
->dynindx
!= -1);
10165 if (ppc_elf_hash_entry (h
)->has_sda_refs
)
10169 BFD_ASSERT (s
!= NULL
);
10171 rela
.r_offset
= SYM_VAL (h
);
10172 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_PPC_COPY
);
10174 loc
= s
->contents
+ s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
10175 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
10179 fprintf (stderr
, "\n");
10185 static enum elf_reloc_type_class
10186 ppc_elf_reloc_type_class (const struct bfd_link_info
*info
,
10187 const asection
*rel_sec
,
10188 const Elf_Internal_Rela
*rela
)
10190 struct ppc_elf_link_hash_table
*htab
= ppc_elf_hash_table (info
);
10192 if (rel_sec
== htab
->reliplt
)
10193 return reloc_class_ifunc
;
10195 switch (ELF32_R_TYPE (rela
->r_info
))
10197 case R_PPC_RELATIVE
:
10198 return reloc_class_relative
;
10199 case R_PPC_JMP_SLOT
:
10200 return reloc_class_plt
;
10202 return reloc_class_copy
;
10204 return reloc_class_normal
;
10208 /* Finish up the dynamic sections. */
10211 ppc_elf_finish_dynamic_sections (bfd
*output_bfd
,
10212 struct bfd_link_info
*info
)
10216 struct ppc_elf_link_hash_table
*htab
;
10219 bfd_boolean ret
= TRUE
;
10222 fprintf (stderr
, "ppc_elf_finish_dynamic_sections called\n");
10225 htab
= ppc_elf_hash_table (info
);
10226 dynobj
= elf_hash_table (info
)->dynobj
;
10227 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
10228 if (htab
->is_vxworks
)
10229 splt
= bfd_get_linker_section (dynobj
, ".plt");
10234 if (htab
->elf
.hgot
!= NULL
)
10235 got
= SYM_VAL (htab
->elf
.hgot
);
10237 if (htab
->elf
.dynamic_sections_created
)
10239 Elf32_External_Dyn
*dyncon
, *dynconend
;
10241 BFD_ASSERT (htab
->plt
!= NULL
&& sdyn
!= NULL
);
10243 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
10244 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
10245 for (; dyncon
< dynconend
; dyncon
++)
10247 Elf_Internal_Dyn dyn
;
10250 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
10255 if (htab
->is_vxworks
)
10259 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
10263 dyn
.d_un
.d_val
= htab
->relplt
->size
;
10268 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
10272 dyn
.d_un
.d_ptr
= got
;
10276 if (htab
->is_vxworks
)
10279 dyn
.d_un
.d_ptr
-= htab
->relplt
->size
;
10285 if (htab
->is_vxworks
10286 && elf_vxworks_finish_dynamic_entry (output_bfd
, &dyn
))
10291 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
10295 if (htab
->got
!= NULL
)
10297 if (htab
->elf
.hgot
->root
.u
.def
.section
== htab
->got
10298 || htab
->elf
.hgot
->root
.u
.def
.section
== htab
->sgotplt
)
10300 unsigned char *p
= htab
->elf
.hgot
->root
.u
.def
.section
->contents
;
10302 p
+= htab
->elf
.hgot
->root
.u
.def
.value
;
10303 if (htab
->plt_type
== PLT_OLD
)
10305 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
10306 so that a function can easily find the address of
10307 _GLOBAL_OFFSET_TABLE_. */
10308 BFD_ASSERT (htab
->elf
.hgot
->root
.u
.def
.value
- 4
10309 < htab
->elf
.hgot
->root
.u
.def
.section
->size
);
10310 bfd_put_32 (output_bfd
, 0x4e800021, p
- 4);
10315 bfd_vma val
= sdyn
->output_section
->vma
+ sdyn
->output_offset
;
10316 BFD_ASSERT (htab
->elf
.hgot
->root
.u
.def
.value
10317 < htab
->elf
.hgot
->root
.u
.def
.section
->size
);
10318 bfd_put_32 (output_bfd
, val
, p
);
10323 info
->callbacks
->einfo (_("%P: %s not defined in linker created %s\n"),
10324 htab
->elf
.hgot
->root
.root
.string
,
10325 (htab
->sgotplt
!= NULL
10326 ? htab
->sgotplt
->name
: htab
->got
->name
));
10327 bfd_set_error (bfd_error_bad_value
);
10331 elf_section_data (htab
->got
->output_section
)->this_hdr
.sh_entsize
= 4;
10334 /* Fill in the first entry in the VxWorks procedure linkage table. */
10335 if (splt
&& splt
->size
> 0)
10337 /* Use the right PLT. */
10338 const bfd_vma
*plt_entry
= (bfd_link_pic (info
)
10339 ? ppc_elf_vxworks_pic_plt0_entry
10340 : ppc_elf_vxworks_plt0_entry
);
10342 if (!bfd_link_pic (info
))
10344 bfd_vma got_value
= SYM_VAL (htab
->elf
.hgot
);
10346 bfd_put_32 (output_bfd
, plt_entry
[0] | PPC_HA (got_value
),
10347 splt
->contents
+ 0);
10348 bfd_put_32 (output_bfd
, plt_entry
[1] | PPC_LO (got_value
),
10349 splt
->contents
+ 4);
10353 bfd_put_32 (output_bfd
, plt_entry
[0], splt
->contents
+ 0);
10354 bfd_put_32 (output_bfd
, plt_entry
[1], splt
->contents
+ 4);
10356 bfd_put_32 (output_bfd
, plt_entry
[2], splt
->contents
+ 8);
10357 bfd_put_32 (output_bfd
, plt_entry
[3], splt
->contents
+ 12);
10358 bfd_put_32 (output_bfd
, plt_entry
[4], splt
->contents
+ 16);
10359 bfd_put_32 (output_bfd
, plt_entry
[5], splt
->contents
+ 20);
10360 bfd_put_32 (output_bfd
, plt_entry
[6], splt
->contents
+ 24);
10361 bfd_put_32 (output_bfd
, plt_entry
[7], splt
->contents
+ 28);
10363 if (! bfd_link_pic (info
))
10365 Elf_Internal_Rela rela
;
10368 loc
= htab
->srelplt2
->contents
;
10370 /* Output the @ha relocation for the first instruction. */
10371 rela
.r_offset
= (htab
->plt
->output_section
->vma
10372 + htab
->plt
->output_offset
10374 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_PPC_ADDR16_HA
);
10376 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
10377 loc
+= sizeof (Elf32_External_Rela
);
10379 /* Output the @l relocation for the second instruction. */
10380 rela
.r_offset
= (htab
->plt
->output_section
->vma
10381 + htab
->plt
->output_offset
10383 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_PPC_ADDR16_LO
);
10385 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
10386 loc
+= sizeof (Elf32_External_Rela
);
10388 /* Fix up the remaining relocations. They may have the wrong
10389 symbol index for _G_O_T_ or _P_L_T_ depending on the order
10390 in which symbols were output. */
10391 while (loc
< htab
->srelplt2
->contents
+ htab
->srelplt2
->size
)
10393 Elf_Internal_Rela rel
;
10395 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
10396 rel
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_PPC_ADDR16_HA
);
10397 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
10398 loc
+= sizeof (Elf32_External_Rela
);
10400 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
10401 rel
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_PPC_ADDR16_LO
);
10402 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
10403 loc
+= sizeof (Elf32_External_Rela
);
10405 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
10406 rel
.r_info
= ELF32_R_INFO (htab
->elf
.hplt
->indx
, R_PPC_ADDR32
);
10407 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
10408 loc
+= sizeof (Elf32_External_Rela
);
10413 if (htab
->glink
!= NULL
10414 && htab
->glink
->contents
!= NULL
10415 && htab
->elf
.dynamic_sections_created
)
10418 unsigned char *endp
;
10423 * PIC glink code is the following:
10425 * # ith PLT code stub.
10426 * addis 11,30,(plt+(i-1)*4-got)@ha
10427 * lwz 11,(plt+(i-1)*4-got)@l(11)
10431 * # A table of branches, one for each plt entry.
10432 * # The idea is that the plt call stub loads ctr and r11 with these
10433 * # addresses, so (r11 - res_0) gives the plt index * 4.
10434 * res_0: b PLTresolve
10435 * res_1: b PLTresolve
10437 * # Some number of entries towards the end can be nops
10443 * addis 11,11,(1f-res_0)@ha
10446 * 1: addi 11,11,(1b-res_0)@l
10449 * sub 11,11,12 # r11 = index * 4
10450 * addis 12,12,(got+4-1b)@ha
10451 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
10452 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
10455 * add 11,0,11 # r11 = index * 12 = reloc offset.
10458 static const unsigned int pic_plt_resolve
[] =
10479 * Non-PIC glink code is a little simpler.
10481 * # ith PLT code stub.
10482 * lis 11,(plt+(i-1)*4)@ha
10483 * lwz 11,(plt+(i-1)*4)@l(11)
10487 * The branch table is the same, then comes
10490 * lis 12,(got+4)@ha
10491 * addis 11,11,(-res_0)@ha
10492 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
10493 * addi 11,11,(-res_0)@l # r11 = index * 4
10496 * lwz 12,(got+8)@l(12) # got[2] contains the map address
10497 * add 11,0,11 # r11 = index * 12 = reloc offset.
10500 static const unsigned int plt_resolve
[] =
10520 if (ARRAY_SIZE (pic_plt_resolve
) != GLINK_PLTRESOLVE
/ 4)
10522 if (ARRAY_SIZE (plt_resolve
) != GLINK_PLTRESOLVE
/ 4)
10525 /* Build the branch table, one for each plt entry (less one),
10526 and perhaps some padding. */
10527 p
= htab
->glink
->contents
;
10528 p
+= htab
->glink_pltresolve
;
10529 endp
= htab
->glink
->contents
;
10530 endp
+= htab
->glink
->size
- GLINK_PLTRESOLVE
;
10531 while (p
< endp
- (htab
->params
->ppc476_workaround
? 0 : 8 * 4))
10533 bfd_put_32 (output_bfd
, B
+ endp
- p
, p
);
10538 bfd_put_32 (output_bfd
, NOP
, p
);
10542 res0
= (htab
->glink_pltresolve
10543 + htab
->glink
->output_section
->vma
10544 + htab
->glink
->output_offset
);
10546 if (htab
->params
->ppc476_workaround
)
10548 /* Ensure that a call stub at the end of a page doesn't
10549 result in prefetch over the end of the page into the
10550 glink branch table. */
10551 bfd_vma pagesize
= (bfd_vma
) 1 << htab
->params
->pagesize_p2
;
10553 bfd_vma glink_start
= (htab
->glink
->output_section
->vma
10554 + htab
->glink
->output_offset
);
10556 for (page_addr
= res0
& -pagesize
;
10557 page_addr
> glink_start
;
10558 page_addr
-= pagesize
)
10560 /* We have a plt call stub that may need fixing. */
10564 loc
= htab
->glink
->contents
+ page_addr
- 4 - glink_start
;
10565 insn
= bfd_get_32 (output_bfd
, loc
);
10568 /* By alignment, we know that there must be at least
10569 one other call stub before this one. */
10570 insn
= bfd_get_32 (output_bfd
, loc
- 16);
10572 bfd_put_32 (output_bfd
, B
| (-16 & 0x3fffffc), loc
);
10574 bfd_put_32 (output_bfd
, B
| (-20 & 0x3fffffc), loc
);
10579 /* Last comes the PLTresolve stub. */
10580 if (bfd_link_pic (info
))
10584 for (i
= 0; i
< ARRAY_SIZE (pic_plt_resolve
); i
++)
10586 unsigned int insn
= pic_plt_resolve
[i
];
10588 if (htab
->params
->ppc476_workaround
&& insn
== NOP
)
10590 bfd_put_32 (output_bfd
, insn
, p
);
10593 p
-= 4 * ARRAY_SIZE (pic_plt_resolve
);
10595 bcl
= (htab
->glink
->size
- GLINK_PLTRESOLVE
+ 3*4
10596 + htab
->glink
->output_section
->vma
10597 + htab
->glink
->output_offset
);
10599 bfd_put_32 (output_bfd
,
10600 ADDIS_11_11
+ PPC_HA (bcl
- res0
), p
+ 0*4);
10601 bfd_put_32 (output_bfd
,
10602 ADDI_11_11
+ PPC_LO (bcl
- res0
), p
+ 3*4);
10603 bfd_put_32 (output_bfd
,
10604 ADDIS_12_12
+ PPC_HA (got
+ 4 - bcl
), p
+ 7*4);
10605 if (PPC_HA (got
+ 4 - bcl
) == PPC_HA (got
+ 8 - bcl
))
10607 bfd_put_32 (output_bfd
,
10608 LWZ_0_12
+ PPC_LO (got
+ 4 - bcl
), p
+ 8*4);
10609 bfd_put_32 (output_bfd
,
10610 LWZ_12_12
+ PPC_LO (got
+ 8 - bcl
), p
+ 9*4);
10614 bfd_put_32 (output_bfd
,
10615 LWZU_0_12
+ PPC_LO (got
+ 4 - bcl
), p
+ 8*4);
10616 bfd_put_32 (output_bfd
,
10617 LWZ_12_12
+ 4, p
+ 9*4);
10622 for (i
= 0; i
< ARRAY_SIZE (plt_resolve
); i
++)
10624 unsigned int insn
= plt_resolve
[i
];
10626 if (htab
->params
->ppc476_workaround
&& insn
== NOP
)
10628 bfd_put_32 (output_bfd
, insn
, p
);
10631 p
-= 4 * ARRAY_SIZE (plt_resolve
);
10633 bfd_put_32 (output_bfd
,
10634 LIS_12
+ PPC_HA (got
+ 4), p
+ 0*4);
10635 bfd_put_32 (output_bfd
,
10636 ADDIS_11_11
+ PPC_HA (-res0
), p
+ 1*4);
10637 bfd_put_32 (output_bfd
,
10638 ADDI_11_11
+ PPC_LO (-res0
), p
+ 3*4);
10639 if (PPC_HA (got
+ 4) == PPC_HA (got
+ 8))
10641 bfd_put_32 (output_bfd
,
10642 LWZ_0_12
+ PPC_LO (got
+ 4), p
+ 2*4);
10643 bfd_put_32 (output_bfd
,
10644 LWZ_12_12
+ PPC_LO (got
+ 8), p
+ 6*4);
10648 bfd_put_32 (output_bfd
,
10649 LWZU_0_12
+ PPC_LO (got
+ 4), p
+ 2*4);
10650 bfd_put_32 (output_bfd
,
10651 LWZ_12_12
+ 4, p
+ 6*4);
10656 if (htab
->glink_eh_frame
!= NULL
10657 && htab
->glink_eh_frame
->contents
!= NULL
)
10659 unsigned char *p
= htab
->glink_eh_frame
->contents
;
10662 p
+= sizeof (glink_eh_frame_cie
);
10667 /* Offset to .glink. */
10668 val
= (htab
->glink
->output_section
->vma
10669 + htab
->glink
->output_offset
);
10670 val
-= (htab
->glink_eh_frame
->output_section
->vma
10671 + htab
->glink_eh_frame
->output_offset
);
10672 val
-= p
- htab
->glink_eh_frame
->contents
;
10673 bfd_put_32 (htab
->elf
.dynobj
, val
, p
);
10675 if (htab
->glink_eh_frame
->sec_info_type
== SEC_INFO_TYPE_EH_FRAME
10676 && !_bfd_elf_write_section_eh_frame (output_bfd
, info
,
10677 htab
->glink_eh_frame
,
10678 htab
->glink_eh_frame
->contents
))
10685 #define TARGET_LITTLE_SYM powerpc_elf32_le_vec
10686 #define TARGET_LITTLE_NAME "elf32-powerpcle"
10687 #define TARGET_BIG_SYM powerpc_elf32_vec
10688 #define TARGET_BIG_NAME "elf32-powerpc"
10689 #define ELF_ARCH bfd_arch_powerpc
10690 #define ELF_TARGET_ID PPC32_ELF_DATA
10691 #define ELF_MACHINE_CODE EM_PPC
10692 #ifdef __QNXTARGET__
10693 #define ELF_MAXPAGESIZE 0x1000
10694 #define ELF_COMMONPAGESIZE 0x1000
10696 #define ELF_MAXPAGESIZE 0x10000
10697 #define ELF_COMMONPAGESIZE 0x10000
10699 #define ELF_MINPAGESIZE 0x1000
10700 #define elf_info_to_howto ppc_elf_info_to_howto
10702 #ifdef EM_CYGNUS_POWERPC
10703 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
10707 #define ELF_MACHINE_ALT2 EM_PPC_OLD
10710 #define elf_backend_plt_not_loaded 1
10711 #define elf_backend_can_gc_sections 1
10712 #define elf_backend_can_refcount 1
10713 #define elf_backend_rela_normal 1
10714 #define elf_backend_caches_rawsize 1
10716 #define bfd_elf32_mkobject ppc_elf_mkobject
10717 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
10718 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
10719 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
10720 #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
10721 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
10722 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
10723 #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
10725 #define elf_backend_object_p ppc_elf_object_p
10726 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
10727 #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
10728 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
10729 #define elf_backend_relocate_section ppc_elf_relocate_section
10730 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
10731 #define elf_backend_check_relocs ppc_elf_check_relocs
10732 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
10733 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
10734 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
10735 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
10736 #define elf_backend_hash_symbol ppc_elf_hash_symbol
10737 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
10738 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
10739 #define elf_backend_fake_sections ppc_elf_fake_sections
10740 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
10741 #define elf_backend_modify_segment_map ppc_elf_modify_segment_map
10742 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
10743 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
10744 #define elf_backend_write_core_note ppc_elf_write_core_note
10745 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
10746 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
10747 #define elf_backend_final_write_processing ppc_elf_final_write_processing
10748 #define elf_backend_write_section ppc_elf_write_section
10749 #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
10750 #define elf_backend_plt_sym_val ppc_elf_plt_sym_val
10751 #define elf_backend_action_discarded ppc_elf_action_discarded
10752 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
10753 #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
10754 #define elf_backend_section_processing ppc_elf_section_processing
10756 #include "elf32-target.h"
10758 /* FreeBSD Target */
10760 #undef TARGET_LITTLE_SYM
10761 #undef TARGET_LITTLE_NAME
10763 #undef TARGET_BIG_SYM
10764 #define TARGET_BIG_SYM powerpc_elf32_fbsd_vec
10765 #undef TARGET_BIG_NAME
10766 #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
10769 #define ELF_OSABI ELFOSABI_FREEBSD
10772 #define elf32_bed elf32_powerpc_fbsd_bed
10774 #include "elf32-target.h"
10776 /* VxWorks Target */
10778 #undef TARGET_LITTLE_SYM
10779 #undef TARGET_LITTLE_NAME
10781 #undef TARGET_BIG_SYM
10782 #define TARGET_BIG_SYM powerpc_elf32_vxworks_vec
10783 #undef TARGET_BIG_NAME
10784 #define TARGET_BIG_NAME "elf32-powerpc-vxworks"
10788 /* VxWorks uses the elf default section flags for .plt. */
10789 static const struct bfd_elf_special_section
*
10790 ppc_elf_vxworks_get_sec_type_attr (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
10792 if (sec
->name
== NULL
)
10795 if (strcmp (sec
->name
, ".plt") == 0)
10796 return _bfd_elf_get_sec_type_attr (abfd
, sec
);
10798 return ppc_elf_get_sec_type_attr (abfd
, sec
);
10801 /* Like ppc_elf_link_hash_table_create, but overrides
10802 appropriately for VxWorks. */
10803 static struct bfd_link_hash_table
*
10804 ppc_elf_vxworks_link_hash_table_create (bfd
*abfd
)
10806 struct bfd_link_hash_table
*ret
;
10808 ret
= ppc_elf_link_hash_table_create (abfd
);
10811 struct ppc_elf_link_hash_table
*htab
10812 = (struct ppc_elf_link_hash_table
*)ret
;
10813 htab
->is_vxworks
= 1;
10814 htab
->plt_type
= PLT_VXWORKS
;
10815 htab
->plt_entry_size
= VXWORKS_PLT_ENTRY_SIZE
;
10816 htab
->plt_slot_size
= VXWORKS_PLT_ENTRY_SIZE
;
10817 htab
->plt_initial_entry_size
= VXWORKS_PLT_INITIAL_ENTRY_SIZE
;
10822 /* Tweak magic VxWorks symbols as they are loaded. */
10824 ppc_elf_vxworks_add_symbol_hook (bfd
*abfd
,
10825 struct bfd_link_info
*info
,
10826 Elf_Internal_Sym
*sym
,
10827 const char **namep ATTRIBUTE_UNUSED
,
10828 flagword
*flagsp ATTRIBUTE_UNUSED
,
10832 if (!elf_vxworks_add_symbol_hook(abfd
, info
, sym
,namep
, flagsp
, secp
,
10836 return ppc_elf_add_symbol_hook(abfd
, info
, sym
,namep
, flagsp
, secp
, valp
);
10840 ppc_elf_vxworks_final_write_processing (bfd
*abfd
, bfd_boolean linker
)
10842 ppc_elf_final_write_processing(abfd
, linker
);
10843 elf_vxworks_final_write_processing(abfd
, linker
);
10846 /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
10848 #undef elf_backend_want_plt_sym
10849 #define elf_backend_want_plt_sym 1
10850 #undef elf_backend_want_got_plt
10851 #define elf_backend_want_got_plt 1
10852 #undef elf_backend_got_symbol_offset
10853 #define elf_backend_got_symbol_offset 0
10854 #undef elf_backend_plt_not_loaded
10855 #define elf_backend_plt_not_loaded 0
10856 #undef elf_backend_plt_readonly
10857 #define elf_backend_plt_readonly 1
10858 #undef elf_backend_got_header_size
10859 #define elf_backend_got_header_size 12
10861 #undef bfd_elf32_get_synthetic_symtab
10863 #undef bfd_elf32_bfd_link_hash_table_create
10864 #define bfd_elf32_bfd_link_hash_table_create \
10865 ppc_elf_vxworks_link_hash_table_create
10866 #undef elf_backend_add_symbol_hook
10867 #define elf_backend_add_symbol_hook \
10868 ppc_elf_vxworks_add_symbol_hook
10869 #undef elf_backend_link_output_symbol_hook
10870 #define elf_backend_link_output_symbol_hook \
10871 elf_vxworks_link_output_symbol_hook
10872 #undef elf_backend_final_write_processing
10873 #define elf_backend_final_write_processing \
10874 ppc_elf_vxworks_final_write_processing
10875 #undef elf_backend_get_sec_type_attr
10876 #define elf_backend_get_sec_type_attr \
10877 ppc_elf_vxworks_get_sec_type_attr
10878 #undef elf_backend_emit_relocs
10879 #define elf_backend_emit_relocs \
10880 elf_vxworks_emit_relocs
10883 #define elf32_bed ppc_elf_vxworks_bed
10884 #undef elf_backend_post_process_headers
10886 #include "elf32-target.h"