1 /* PowerPC-specific support for 32-bit ELF
2 Copyright (C) 1994-2018 Free Software Foundation, Inc.
3 Written by Ian Lance Taylor, Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the
19 Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
20 Boston, MA 02110-1301, USA. */
23 /* This file is based on a preliminary PowerPC ELF ABI. The
24 information may not match the final PowerPC ELF ABI. It includes
25 suggestions from the in-progress Embedded PowerPC ABI, and that
26 information may also not match. */
35 #include "elf32-ppc.h"
36 #include "elf-vxworks.h"
38 #include "opcode/ppc.h"
40 typedef enum split16_format_type
47 /* RELA relocations are used here. */
49 static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
50 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
51 static bfd_reloc_status_type ppc_elf_unhandled_reloc
52 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
54 /* Branch prediction bit for branch taken relocs. */
55 #define BRANCH_PREDICT_BIT 0x200000
56 /* Mask to set RA in memory instructions. */
57 #define RA_REGISTER_MASK 0x001f0000
58 /* Value to shift register by to insert RA. */
59 #define RA_REGISTER_SHIFT 16
61 /* The name of the dynamic interpreter. This is put in the .interp
63 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
65 /* For old-style PLT. */
66 /* The number of single-slot PLT entries (the rest use two slots). */
67 #define PLT_NUM_SINGLE_ENTRIES 8192
69 /* For new-style .glink and .plt. */
70 #define GLINK_PLTRESOLVE 16*4
71 #define GLINK_ENTRY_SIZE(htab, h) \
74 && h == htab->tls_get_addr \
75 && !htab->params->no_tls_get_addr_opt ? 8*4 : 0) \
76 + (1u << htab->params->plt_stub_align) - 1) \
77 & -(1u << htab->params->plt_stub_align))
79 /* VxWorks uses its own plt layout, filled in by the static linker. */
81 /* The standard VxWorks PLT entry. */
82 #define VXWORKS_PLT_ENTRY_SIZE 32
83 static const bfd_vma ppc_elf_vxworks_plt_entry
84 [VXWORKS_PLT_ENTRY_SIZE / 4] =
86 0x3d800000, /* lis r12,0 */
87 0x818c0000, /* lwz r12,0(r12) */
88 0x7d8903a6, /* mtctr r12 */
89 0x4e800420, /* bctr */
90 0x39600000, /* li r11,0 */
91 0x48000000, /* b 14 <.PLT0resolve+0x4> */
95 static const bfd_vma ppc_elf_vxworks_pic_plt_entry
96 [VXWORKS_PLT_ENTRY_SIZE / 4] =
98 0x3d9e0000, /* addis r12,r30,0 */
99 0x818c0000, /* lwz r12,0(r12) */
100 0x7d8903a6, /* mtctr r12 */
101 0x4e800420, /* bctr */
102 0x39600000, /* li r11,0 */
103 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
104 0x60000000, /* nop */
105 0x60000000, /* nop */
108 /* The initial VxWorks PLT entry. */
109 #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
110 static const bfd_vma ppc_elf_vxworks_plt0_entry
111 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
113 0x3d800000, /* lis r12,0 */
114 0x398c0000, /* addi r12,r12,0 */
115 0x800c0008, /* lwz r0,8(r12) */
116 0x7c0903a6, /* mtctr r0 */
117 0x818c0004, /* lwz r12,4(r12) */
118 0x4e800420, /* bctr */
119 0x60000000, /* nop */
120 0x60000000, /* nop */
122 static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
123 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
125 0x819e0008, /* lwz r12,8(r30) */
126 0x7d8903a6, /* mtctr r12 */
127 0x819e0004, /* lwz r12,4(r30) */
128 0x4e800420, /* bctr */
129 0x60000000, /* nop */
130 0x60000000, /* nop */
131 0x60000000, /* nop */
132 0x60000000, /* nop */
135 /* For executables, we have some additional relocations in
136 .rela.plt.unloaded, for the kernel loader. */
138 /* The number of non-JMP_SLOT relocations per PLT0 slot. */
139 #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
140 /* The number of relocations in the PLTResolve slot. */
141 #define VXWORKS_PLTRESOLVE_RELOCS 2
142 /* The number of relocations in the PLTResolve slot when creating
144 #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
146 /* Some instructions. */
147 #define ADDIS_11_11 0x3d6b0000
148 #define ADDIS_11_30 0x3d7e0000
149 #define ADDIS_12_12 0x3d8c0000
150 #define ADDI_11_11 0x396b0000
151 #define ADD_0_11_11 0x7c0b5a14
152 #define ADD_3_12_2 0x7c6c1214
153 #define ADD_11_0_11 0x7d605a14
155 #define BA 0x48000002
156 #define BCL_20_31 0x429f0005
157 #define BCTR 0x4e800420
158 #define BEQLR 0x4d820020
159 #define CMPWI_11_0 0x2c0b0000
160 #define LIS_11 0x3d600000
161 #define LIS_12 0x3d800000
162 #define LWZU_0_12 0x840c0000
163 #define LWZ_0_12 0x800c0000
164 #define LWZ_11_3 0x81630000
165 #define LWZ_11_11 0x816b0000
166 #define LWZ_11_30 0x817e0000
167 #define LWZ_12_3 0x81830000
168 #define LWZ_12_12 0x818c0000
169 #define MR_0_3 0x7c601b78
170 #define MR_3_0 0x7c030378
171 #define MFLR_0 0x7c0802a6
172 #define MFLR_12 0x7d8802a6
173 #define MTCTR_0 0x7c0903a6
174 #define MTCTR_11 0x7d6903a6
175 #define MTLR_0 0x7c0803a6
176 #define NOP 0x60000000
177 #define SUB_11_11_12 0x7d6c5850
179 /* Offset of tp and dtp pointers from start of TLS block. */
180 #define TP_OFFSET 0x7000
181 #define DTP_OFFSET 0x8000
183 /* The value of a defined global symbol. */
184 #define SYM_VAL(SYM) \
185 ((SYM)->root.u.def.section->output_section->vma \
186 + (SYM)->root.u.def.section->output_offset \
187 + (SYM)->root.u.def.value)
189 static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
191 static reloc_howto_type ppc_elf_howto_raw[] = {
192 /* This reloc does nothing. */
193 HOWTO (R_PPC_NONE, /* type */
195 3, /* size (0 = byte, 1 = short, 2 = long) */
197 FALSE, /* pc_relative */
199 complain_overflow_dont, /* complain_on_overflow */
200 bfd_elf_generic_reloc, /* special_function */
201 "R_PPC_NONE", /* name */
202 FALSE, /* partial_inplace */
205 FALSE), /* pcrel_offset */
207 /* A standard 32 bit relocation. */
208 HOWTO (R_PPC_ADDR32, /* type */
210 2, /* size (0 = byte, 1 = short, 2 = long) */
212 FALSE, /* pc_relative */
214 complain_overflow_dont, /* complain_on_overflow */
215 bfd_elf_generic_reloc, /* special_function */
216 "R_PPC_ADDR32", /* name */
217 FALSE, /* partial_inplace */
219 0xffffffff, /* dst_mask */
220 FALSE), /* pcrel_offset */
222 /* An absolute 26 bit branch; the lower two bits must be zero.
223 FIXME: we don't check that, we just clear them. */
224 HOWTO (R_PPC_ADDR24, /* type */
226 2, /* size (0 = byte, 1 = short, 2 = long) */
228 FALSE, /* pc_relative */
230 complain_overflow_signed, /* complain_on_overflow */
231 bfd_elf_generic_reloc, /* special_function */
232 "R_PPC_ADDR24", /* name */
233 FALSE, /* partial_inplace */
235 0x3fffffc, /* dst_mask */
236 FALSE), /* pcrel_offset */
238 /* A standard 16 bit relocation. */
239 HOWTO (R_PPC_ADDR16, /* type */
241 1, /* size (0 = byte, 1 = short, 2 = long) */
243 FALSE, /* pc_relative */
245 complain_overflow_bitfield, /* complain_on_overflow */
246 bfd_elf_generic_reloc, /* special_function */
247 "R_PPC_ADDR16", /* name */
248 FALSE, /* partial_inplace */
250 0xffff, /* dst_mask */
251 FALSE), /* pcrel_offset */
253 /* A 16 bit relocation without overflow. */
254 HOWTO (R_PPC_ADDR16_LO, /* type */
256 1, /* size (0 = byte, 1 = short, 2 = long) */
258 FALSE, /* pc_relative */
260 complain_overflow_dont,/* complain_on_overflow */
261 bfd_elf_generic_reloc, /* special_function */
262 "R_PPC_ADDR16_LO", /* name */
263 FALSE, /* partial_inplace */
265 0xffff, /* dst_mask */
266 FALSE), /* pcrel_offset */
268 /* The high order 16 bits of an address. */
269 HOWTO (R_PPC_ADDR16_HI, /* type */
271 1, /* size (0 = byte, 1 = short, 2 = long) */
273 FALSE, /* pc_relative */
275 complain_overflow_dont, /* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_PPC_ADDR16_HI", /* name */
278 FALSE, /* partial_inplace */
280 0xffff, /* dst_mask */
281 FALSE), /* pcrel_offset */
283 /* The high order 16 bits of an address, plus 1 if the contents of
284 the low 16 bits, treated as a signed number, is negative. */
285 HOWTO (R_PPC_ADDR16_HA, /* type */
287 1, /* size (0 = byte, 1 = short, 2 = long) */
289 FALSE, /* pc_relative */
291 complain_overflow_dont, /* complain_on_overflow */
292 ppc_elf_addr16_ha_reloc, /* special_function */
293 "R_PPC_ADDR16_HA", /* name */
294 FALSE, /* partial_inplace */
296 0xffff, /* dst_mask */
297 FALSE), /* pcrel_offset */
299 /* An absolute 16 bit branch; the lower two bits must be zero.
300 FIXME: we don't check that, we just clear them. */
301 HOWTO (R_PPC_ADDR14, /* type */
303 2, /* size (0 = byte, 1 = short, 2 = long) */
305 FALSE, /* pc_relative */
307 complain_overflow_signed, /* complain_on_overflow */
308 bfd_elf_generic_reloc, /* special_function */
309 "R_PPC_ADDR14", /* name */
310 FALSE, /* partial_inplace */
312 0xfffc, /* dst_mask */
313 FALSE), /* pcrel_offset */
315 /* An absolute 16 bit branch, for which bit 10 should be set to
316 indicate that the branch is expected to be taken. The lower two
317 bits must be zero. */
318 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
320 2, /* size (0 = byte, 1 = short, 2 = long) */
322 FALSE, /* pc_relative */
324 complain_overflow_signed, /* complain_on_overflow */
325 bfd_elf_generic_reloc, /* special_function */
326 "R_PPC_ADDR14_BRTAKEN",/* name */
327 FALSE, /* partial_inplace */
329 0xfffc, /* dst_mask */
330 FALSE), /* pcrel_offset */
332 /* An absolute 16 bit branch, for which bit 10 should be set to
333 indicate that the branch is not expected to be taken. The lower
334 two bits must be zero. */
335 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
337 2, /* size (0 = byte, 1 = short, 2 = long) */
339 FALSE, /* pc_relative */
341 complain_overflow_signed, /* complain_on_overflow */
342 bfd_elf_generic_reloc, /* special_function */
343 "R_PPC_ADDR14_BRNTAKEN",/* name */
344 FALSE, /* partial_inplace */
346 0xfffc, /* dst_mask */
347 FALSE), /* pcrel_offset */
349 /* A relative 26 bit branch; the lower two bits must be zero. */
350 HOWTO (R_PPC_REL24, /* type */
352 2, /* size (0 = byte, 1 = short, 2 = long) */
354 TRUE, /* pc_relative */
356 complain_overflow_signed, /* complain_on_overflow */
357 bfd_elf_generic_reloc, /* special_function */
358 "R_PPC_REL24", /* name */
359 FALSE, /* partial_inplace */
361 0x3fffffc, /* dst_mask */
362 TRUE), /* pcrel_offset */
364 /* A relative 16 bit branch; the lower two bits must be zero. */
365 HOWTO (R_PPC_REL14, /* type */
367 2, /* size (0 = byte, 1 = short, 2 = long) */
369 TRUE, /* pc_relative */
371 complain_overflow_signed, /* complain_on_overflow */
372 bfd_elf_generic_reloc, /* special_function */
373 "R_PPC_REL14", /* name */
374 FALSE, /* partial_inplace */
376 0xfffc, /* dst_mask */
377 TRUE), /* pcrel_offset */
379 /* A relative 16 bit branch. Bit 10 should be set to indicate that
380 the branch is expected to be taken. The lower two bits must be
382 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
384 2, /* size (0 = byte, 1 = short, 2 = long) */
386 TRUE, /* pc_relative */
388 complain_overflow_signed, /* complain_on_overflow */
389 bfd_elf_generic_reloc, /* special_function */
390 "R_PPC_REL14_BRTAKEN", /* name */
391 FALSE, /* partial_inplace */
393 0xfffc, /* dst_mask */
394 TRUE), /* pcrel_offset */
396 /* A relative 16 bit branch. Bit 10 should be set to indicate that
397 the branch is not expected to be taken. The lower two bits must
399 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
401 2, /* size (0 = byte, 1 = short, 2 = long) */
403 TRUE, /* pc_relative */
405 complain_overflow_signed, /* complain_on_overflow */
406 bfd_elf_generic_reloc, /* special_function */
407 "R_PPC_REL14_BRNTAKEN",/* name */
408 FALSE, /* partial_inplace */
410 0xfffc, /* dst_mask */
411 TRUE), /* pcrel_offset */
413 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
415 HOWTO (R_PPC_GOT16, /* type */
417 1, /* size (0 = byte, 1 = short, 2 = long) */
419 FALSE, /* pc_relative */
421 complain_overflow_signed, /* complain_on_overflow */
422 ppc_elf_unhandled_reloc, /* special_function */
423 "R_PPC_GOT16", /* name */
424 FALSE, /* partial_inplace */
426 0xffff, /* dst_mask */
427 FALSE), /* pcrel_offset */
429 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
431 HOWTO (R_PPC_GOT16_LO, /* type */
433 1, /* size (0 = byte, 1 = short, 2 = long) */
435 FALSE, /* pc_relative */
437 complain_overflow_dont, /* complain_on_overflow */
438 ppc_elf_unhandled_reloc, /* special_function */
439 "R_PPC_GOT16_LO", /* name */
440 FALSE, /* partial_inplace */
442 0xffff, /* dst_mask */
443 FALSE), /* pcrel_offset */
445 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
447 HOWTO (R_PPC_GOT16_HI, /* type */
449 1, /* size (0 = byte, 1 = short, 2 = long) */
451 FALSE, /* pc_relative */
453 complain_overflow_dont, /* complain_on_overflow */
454 ppc_elf_unhandled_reloc, /* special_function */
455 "R_PPC_GOT16_HI", /* name */
456 FALSE, /* partial_inplace */
458 0xffff, /* dst_mask */
459 FALSE), /* pcrel_offset */
461 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
463 HOWTO (R_PPC_GOT16_HA, /* type */
465 1, /* size (0 = byte, 1 = short, 2 = long) */
467 FALSE, /* pc_relative */
469 complain_overflow_dont, /* complain_on_overflow */
470 ppc_elf_unhandled_reloc, /* special_function */
471 "R_PPC_GOT16_HA", /* name */
472 FALSE, /* partial_inplace */
474 0xffff, /* dst_mask */
475 FALSE), /* pcrel_offset */
477 /* Like R_PPC_REL24, but referring to the procedure linkage table
478 entry for the symbol. */
479 HOWTO (R_PPC_PLTREL24, /* type */
481 2, /* size (0 = byte, 1 = short, 2 = long) */
483 TRUE, /* pc_relative */
485 complain_overflow_signed, /* complain_on_overflow */
486 ppc_elf_unhandled_reloc, /* special_function */
487 "R_PPC_PLTREL24", /* name */
488 FALSE, /* partial_inplace */
490 0x3fffffc, /* dst_mask */
491 TRUE), /* pcrel_offset */
493 /* This is used only by the dynamic linker. The symbol should exist
494 both in the object being run and in some shared library. The
495 dynamic linker copies the data addressed by the symbol from the
496 shared library into the object, because the object being
497 run has to have the data at some particular address. */
498 HOWTO (R_PPC_COPY, /* type */
500 2, /* size (0 = byte, 1 = short, 2 = long) */
502 FALSE, /* pc_relative */
504 complain_overflow_dont, /* complain_on_overflow */
505 ppc_elf_unhandled_reloc, /* special_function */
506 "R_PPC_COPY", /* name */
507 FALSE, /* partial_inplace */
510 FALSE), /* pcrel_offset */
512 /* Like R_PPC_ADDR32, but used when setting global offset table
514 HOWTO (R_PPC_GLOB_DAT, /* type */
516 2, /* size (0 = byte, 1 = short, 2 = long) */
518 FALSE, /* pc_relative */
520 complain_overflow_dont, /* complain_on_overflow */
521 ppc_elf_unhandled_reloc, /* special_function */
522 "R_PPC_GLOB_DAT", /* name */
523 FALSE, /* partial_inplace */
525 0xffffffff, /* dst_mask */
526 FALSE), /* pcrel_offset */
528 /* Marks a procedure linkage table entry for a symbol. */
529 HOWTO (R_PPC_JMP_SLOT, /* type */
531 2, /* size (0 = byte, 1 = short, 2 = long) */
533 FALSE, /* pc_relative */
535 complain_overflow_dont, /* complain_on_overflow */
536 ppc_elf_unhandled_reloc, /* special_function */
537 "R_PPC_JMP_SLOT", /* name */
538 FALSE, /* partial_inplace */
541 FALSE), /* pcrel_offset */
543 /* Used only by the dynamic linker. When the object is run, this
544 longword is set to the load address of the object, plus the
546 HOWTO (R_PPC_RELATIVE, /* type */
548 2, /* size (0 = byte, 1 = short, 2 = long) */
550 FALSE, /* pc_relative */
552 complain_overflow_dont, /* complain_on_overflow */
553 bfd_elf_generic_reloc, /* special_function */
554 "R_PPC_RELATIVE", /* name */
555 FALSE, /* partial_inplace */
557 0xffffffff, /* dst_mask */
558 FALSE), /* pcrel_offset */
560 /* Like R_PPC_REL24, but uses the value of the symbol within the
561 object rather than the final value. Normally used for
562 _GLOBAL_OFFSET_TABLE_. */
563 HOWTO (R_PPC_LOCAL24PC, /* type */
565 2, /* size (0 = byte, 1 = short, 2 = long) */
567 TRUE, /* pc_relative */
569 complain_overflow_signed, /* complain_on_overflow */
570 bfd_elf_generic_reloc, /* special_function */
571 "R_PPC_LOCAL24PC", /* name */
572 FALSE, /* partial_inplace */
574 0x3fffffc, /* dst_mask */
575 TRUE), /* pcrel_offset */
577 /* Like R_PPC_ADDR32, but may be unaligned. */
578 HOWTO (R_PPC_UADDR32, /* type */
580 2, /* size (0 = byte, 1 = short, 2 = long) */
582 FALSE, /* pc_relative */
584 complain_overflow_dont, /* complain_on_overflow */
585 bfd_elf_generic_reloc, /* special_function */
586 "R_PPC_UADDR32", /* name */
587 FALSE, /* partial_inplace */
589 0xffffffff, /* dst_mask */
590 FALSE), /* pcrel_offset */
592 /* Like R_PPC_ADDR16, but may be unaligned. */
593 HOWTO (R_PPC_UADDR16, /* type */
595 1, /* size (0 = byte, 1 = short, 2 = long) */
597 FALSE, /* pc_relative */
599 complain_overflow_bitfield, /* complain_on_overflow */
600 bfd_elf_generic_reloc, /* special_function */
601 "R_PPC_UADDR16", /* name */
602 FALSE, /* partial_inplace */
604 0xffff, /* dst_mask */
605 FALSE), /* pcrel_offset */
607 /* 32-bit PC relative */
608 HOWTO (R_PPC_REL32, /* type */
610 2, /* size (0 = byte, 1 = short, 2 = long) */
612 TRUE, /* pc_relative */
614 complain_overflow_dont, /* complain_on_overflow */
615 bfd_elf_generic_reloc, /* special_function */
616 "R_PPC_REL32", /* name */
617 FALSE, /* partial_inplace */
619 0xffffffff, /* dst_mask */
620 TRUE), /* pcrel_offset */
622 /* 32-bit relocation to the symbol's procedure linkage table.
623 FIXME: not supported. */
624 HOWTO (R_PPC_PLT32, /* type */
626 2, /* size (0 = byte, 1 = short, 2 = long) */
628 FALSE, /* pc_relative */
630 complain_overflow_dont, /* complain_on_overflow */
631 ppc_elf_unhandled_reloc, /* special_function */
632 "R_PPC_PLT32", /* name */
633 FALSE, /* partial_inplace */
636 FALSE), /* pcrel_offset */
638 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
639 FIXME: not supported. */
640 HOWTO (R_PPC_PLTREL32, /* type */
642 2, /* size (0 = byte, 1 = short, 2 = long) */
644 TRUE, /* pc_relative */
646 complain_overflow_dont, /* complain_on_overflow */
647 ppc_elf_unhandled_reloc, /* special_function */
648 "R_PPC_PLTREL32", /* name */
649 FALSE, /* partial_inplace */
652 TRUE), /* pcrel_offset */
654 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
656 HOWTO (R_PPC_PLT16_LO, /* type */
658 1, /* size (0 = byte, 1 = short, 2 = long) */
660 FALSE, /* pc_relative */
662 complain_overflow_dont, /* complain_on_overflow */
663 ppc_elf_unhandled_reloc, /* special_function */
664 "R_PPC_PLT16_LO", /* name */
665 FALSE, /* partial_inplace */
667 0xffff, /* dst_mask */
668 FALSE), /* pcrel_offset */
670 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
672 HOWTO (R_PPC_PLT16_HI, /* type */
674 1, /* size (0 = byte, 1 = short, 2 = long) */
676 FALSE, /* pc_relative */
678 complain_overflow_dont, /* complain_on_overflow */
679 ppc_elf_unhandled_reloc, /* special_function */
680 "R_PPC_PLT16_HI", /* name */
681 FALSE, /* partial_inplace */
683 0xffff, /* dst_mask */
684 FALSE), /* pcrel_offset */
686 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
688 HOWTO (R_PPC_PLT16_HA, /* type */
690 1, /* size (0 = byte, 1 = short, 2 = long) */
692 FALSE, /* pc_relative */
694 complain_overflow_dont, /* complain_on_overflow */
695 ppc_elf_unhandled_reloc, /* special_function */
696 "R_PPC_PLT16_HA", /* name */
697 FALSE, /* partial_inplace */
699 0xffff, /* dst_mask */
700 FALSE), /* pcrel_offset */
702 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
704 HOWTO (R_PPC_SDAREL16, /* type */
706 1, /* size (0 = byte, 1 = short, 2 = long) */
708 FALSE, /* pc_relative */
710 complain_overflow_signed, /* complain_on_overflow */
711 ppc_elf_unhandled_reloc, /* special_function */
712 "R_PPC_SDAREL16", /* name */
713 FALSE, /* partial_inplace */
715 0xffff, /* dst_mask */
716 FALSE), /* pcrel_offset */
718 /* 16-bit section relative relocation. */
719 HOWTO (R_PPC_SECTOFF, /* type */
721 1, /* size (0 = byte, 1 = short, 2 = long) */
723 FALSE, /* pc_relative */
725 complain_overflow_signed, /* complain_on_overflow */
726 ppc_elf_unhandled_reloc, /* special_function */
727 "R_PPC_SECTOFF", /* name */
728 FALSE, /* partial_inplace */
730 0xffff, /* dst_mask */
731 FALSE), /* pcrel_offset */
733 /* 16-bit lower half section relative relocation. */
734 HOWTO (R_PPC_SECTOFF_LO, /* type */
736 1, /* size (0 = byte, 1 = short, 2 = long) */
738 FALSE, /* pc_relative */
740 complain_overflow_dont, /* complain_on_overflow */
741 ppc_elf_unhandled_reloc, /* special_function */
742 "R_PPC_SECTOFF_LO", /* name */
743 FALSE, /* partial_inplace */
745 0xffff, /* dst_mask */
746 FALSE), /* pcrel_offset */
748 /* 16-bit upper half section relative relocation. */
749 HOWTO (R_PPC_SECTOFF_HI, /* type */
751 1, /* size (0 = byte, 1 = short, 2 = long) */
753 FALSE, /* pc_relative */
755 complain_overflow_dont, /* complain_on_overflow */
756 ppc_elf_unhandled_reloc, /* special_function */
757 "R_PPC_SECTOFF_HI", /* name */
758 FALSE, /* partial_inplace */
760 0xffff, /* dst_mask */
761 FALSE), /* pcrel_offset */
763 /* 16-bit upper half adjusted section relative relocation. */
764 HOWTO (R_PPC_SECTOFF_HA, /* type */
766 1, /* size (0 = byte, 1 = short, 2 = long) */
768 FALSE, /* pc_relative */
770 complain_overflow_dont, /* complain_on_overflow */
771 ppc_elf_unhandled_reloc, /* special_function */
772 "R_PPC_SECTOFF_HA", /* name */
773 FALSE, /* partial_inplace */
775 0xffff, /* dst_mask */
776 FALSE), /* pcrel_offset */
778 /* Marker relocs for TLS. */
781 2, /* size (0 = byte, 1 = short, 2 = long) */
783 FALSE, /* pc_relative */
785 complain_overflow_dont, /* complain_on_overflow */
786 bfd_elf_generic_reloc, /* special_function */
787 "R_PPC_TLS", /* name */
788 FALSE, /* partial_inplace */
791 FALSE), /* pcrel_offset */
795 2, /* size (0 = byte, 1 = short, 2 = long) */
797 FALSE, /* pc_relative */
799 complain_overflow_dont, /* complain_on_overflow */
800 bfd_elf_generic_reloc, /* special_function */
801 "R_PPC_TLSGD", /* name */
802 FALSE, /* partial_inplace */
805 FALSE), /* pcrel_offset */
809 2, /* size (0 = byte, 1 = short, 2 = long) */
811 FALSE, /* pc_relative */
813 complain_overflow_dont, /* complain_on_overflow */
814 bfd_elf_generic_reloc, /* special_function */
815 "R_PPC_TLSLD", /* name */
816 FALSE, /* partial_inplace */
819 FALSE), /* pcrel_offset */
821 /* Marker relocs on inline plt call instructions. */
824 2, /* size (0 = byte, 1 = short, 2 = long) */
826 FALSE, /* pc_relative */
828 complain_overflow_dont, /* complain_on_overflow */
829 bfd_elf_generic_reloc, /* special_function */
830 "R_PPC_PLTSEQ", /* name */
831 FALSE, /* partial_inplace */
834 FALSE), /* pcrel_offset */
836 HOWTO (R_PPC_PLTCALL,
838 2, /* size (0 = byte, 1 = short, 2 = long) */
840 FALSE, /* pc_relative */
842 complain_overflow_dont, /* complain_on_overflow */
843 bfd_elf_generic_reloc, /* special_function */
844 "R_PPC_PLTCALL", /* name */
845 FALSE, /* partial_inplace */
848 FALSE), /* pcrel_offset */
850 /* Computes the load module index of the load module that contains the
851 definition of its TLS sym. */
852 HOWTO (R_PPC_DTPMOD32,
854 2, /* size (0 = byte, 1 = short, 2 = long) */
856 FALSE, /* pc_relative */
858 complain_overflow_dont, /* complain_on_overflow */
859 ppc_elf_unhandled_reloc, /* special_function */
860 "R_PPC_DTPMOD32", /* name */
861 FALSE, /* partial_inplace */
863 0xffffffff, /* dst_mask */
864 FALSE), /* pcrel_offset */
866 /* Computes a dtv-relative displacement, the difference between the value
867 of sym+add and the base address of the thread-local storage block that
868 contains the definition of sym, minus 0x8000. */
869 HOWTO (R_PPC_DTPREL32,
871 2, /* size (0 = byte, 1 = short, 2 = long) */
873 FALSE, /* pc_relative */
875 complain_overflow_dont, /* complain_on_overflow */
876 ppc_elf_unhandled_reloc, /* special_function */
877 "R_PPC_DTPREL32", /* name */
878 FALSE, /* partial_inplace */
880 0xffffffff, /* dst_mask */
881 FALSE), /* pcrel_offset */
883 /* A 16 bit dtprel reloc. */
884 HOWTO (R_PPC_DTPREL16,
886 1, /* size (0 = byte, 1 = short, 2 = long) */
888 FALSE, /* pc_relative */
890 complain_overflow_signed, /* complain_on_overflow */
891 ppc_elf_unhandled_reloc, /* special_function */
892 "R_PPC_DTPREL16", /* name */
893 FALSE, /* partial_inplace */
895 0xffff, /* dst_mask */
896 FALSE), /* pcrel_offset */
898 /* Like DTPREL16, but no overflow. */
899 HOWTO (R_PPC_DTPREL16_LO,
901 1, /* size (0 = byte, 1 = short, 2 = long) */
903 FALSE, /* pc_relative */
905 complain_overflow_dont, /* complain_on_overflow */
906 ppc_elf_unhandled_reloc, /* special_function */
907 "R_PPC_DTPREL16_LO", /* name */
908 FALSE, /* partial_inplace */
910 0xffff, /* dst_mask */
911 FALSE), /* pcrel_offset */
913 /* Like DTPREL16_LO, but next higher group of 16 bits. */
914 HOWTO (R_PPC_DTPREL16_HI,
916 1, /* size (0 = byte, 1 = short, 2 = long) */
918 FALSE, /* pc_relative */
920 complain_overflow_dont, /* complain_on_overflow */
921 ppc_elf_unhandled_reloc, /* special_function */
922 "R_PPC_DTPREL16_HI", /* name */
923 FALSE, /* partial_inplace */
925 0xffff, /* dst_mask */
926 FALSE), /* pcrel_offset */
928 /* Like DTPREL16_HI, but adjust for low 16 bits. */
929 HOWTO (R_PPC_DTPREL16_HA,
931 1, /* size (0 = byte, 1 = short, 2 = long) */
933 FALSE, /* pc_relative */
935 complain_overflow_dont, /* complain_on_overflow */
936 ppc_elf_unhandled_reloc, /* special_function */
937 "R_PPC_DTPREL16_HA", /* name */
938 FALSE, /* partial_inplace */
940 0xffff, /* dst_mask */
941 FALSE), /* pcrel_offset */
943 /* Computes a tp-relative displacement, the difference between the value of
944 sym+add and the value of the thread pointer (r13). */
945 HOWTO (R_PPC_TPREL32,
947 2, /* size (0 = byte, 1 = short, 2 = long) */
949 FALSE, /* pc_relative */
951 complain_overflow_dont, /* complain_on_overflow */
952 ppc_elf_unhandled_reloc, /* special_function */
953 "R_PPC_TPREL32", /* name */
954 FALSE, /* partial_inplace */
956 0xffffffff, /* dst_mask */
957 FALSE), /* pcrel_offset */
959 /* A 16 bit tprel reloc. */
960 HOWTO (R_PPC_TPREL16,
962 1, /* size (0 = byte, 1 = short, 2 = long) */
964 FALSE, /* pc_relative */
966 complain_overflow_signed, /* complain_on_overflow */
967 ppc_elf_unhandled_reloc, /* special_function */
968 "R_PPC_TPREL16", /* name */
969 FALSE, /* partial_inplace */
971 0xffff, /* dst_mask */
972 FALSE), /* pcrel_offset */
974 /* Like TPREL16, but no overflow. */
975 HOWTO (R_PPC_TPREL16_LO,
977 1, /* size (0 = byte, 1 = short, 2 = long) */
979 FALSE, /* pc_relative */
981 complain_overflow_dont, /* complain_on_overflow */
982 ppc_elf_unhandled_reloc, /* special_function */
983 "R_PPC_TPREL16_LO", /* name */
984 FALSE, /* partial_inplace */
986 0xffff, /* dst_mask */
987 FALSE), /* pcrel_offset */
989 /* Like TPREL16_LO, but next higher group of 16 bits. */
990 HOWTO (R_PPC_TPREL16_HI,
992 1, /* size (0 = byte, 1 = short, 2 = long) */
994 FALSE, /* pc_relative */
996 complain_overflow_dont, /* complain_on_overflow */
997 ppc_elf_unhandled_reloc, /* special_function */
998 "R_PPC_TPREL16_HI", /* name */
999 FALSE, /* partial_inplace */
1001 0xffff, /* dst_mask */
1002 FALSE), /* pcrel_offset */
1004 /* Like TPREL16_HI, but adjust for low 16 bits. */
1005 HOWTO (R_PPC_TPREL16_HA,
1006 16, /* rightshift */
1007 1, /* size (0 = byte, 1 = short, 2 = long) */
1009 FALSE, /* pc_relative */
1011 complain_overflow_dont, /* complain_on_overflow */
1012 ppc_elf_unhandled_reloc, /* special_function */
1013 "R_PPC_TPREL16_HA", /* name */
1014 FALSE, /* partial_inplace */
1016 0xffff, /* dst_mask */
1017 FALSE), /* pcrel_offset */
1019 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1020 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1021 to the first entry. */
1022 HOWTO (R_PPC_GOT_TLSGD16,
1024 1, /* size (0 = byte, 1 = short, 2 = long) */
1026 FALSE, /* pc_relative */
1028 complain_overflow_signed, /* complain_on_overflow */
1029 ppc_elf_unhandled_reloc, /* special_function */
1030 "R_PPC_GOT_TLSGD16", /* name */
1031 FALSE, /* partial_inplace */
1033 0xffff, /* dst_mask */
1034 FALSE), /* pcrel_offset */
1036 /* Like GOT_TLSGD16, but no overflow. */
1037 HOWTO (R_PPC_GOT_TLSGD16_LO,
1039 1, /* size (0 = byte, 1 = short, 2 = long) */
1041 FALSE, /* pc_relative */
1043 complain_overflow_dont, /* complain_on_overflow */
1044 ppc_elf_unhandled_reloc, /* special_function */
1045 "R_PPC_GOT_TLSGD16_LO", /* name */
1046 FALSE, /* partial_inplace */
1048 0xffff, /* dst_mask */
1049 FALSE), /* pcrel_offset */
1051 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1052 HOWTO (R_PPC_GOT_TLSGD16_HI,
1053 16, /* rightshift */
1054 1, /* size (0 = byte, 1 = short, 2 = long) */
1056 FALSE, /* pc_relative */
1058 complain_overflow_dont, /* complain_on_overflow */
1059 ppc_elf_unhandled_reloc, /* special_function */
1060 "R_PPC_GOT_TLSGD16_HI", /* name */
1061 FALSE, /* partial_inplace */
1063 0xffff, /* dst_mask */
1064 FALSE), /* pcrel_offset */
1066 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1067 HOWTO (R_PPC_GOT_TLSGD16_HA,
1068 16, /* rightshift */
1069 1, /* size (0 = byte, 1 = short, 2 = long) */
1071 FALSE, /* pc_relative */
1073 complain_overflow_dont, /* complain_on_overflow */
1074 ppc_elf_unhandled_reloc, /* special_function */
1075 "R_PPC_GOT_TLSGD16_HA", /* name */
1076 FALSE, /* partial_inplace */
1078 0xffff, /* dst_mask */
1079 FALSE), /* pcrel_offset */
1081 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1082 with values (sym+add)@dtpmod and zero, and computes the offset to the
1084 HOWTO (R_PPC_GOT_TLSLD16,
1086 1, /* size (0 = byte, 1 = short, 2 = long) */
1088 FALSE, /* pc_relative */
1090 complain_overflow_signed, /* complain_on_overflow */
1091 ppc_elf_unhandled_reloc, /* special_function */
1092 "R_PPC_GOT_TLSLD16", /* name */
1093 FALSE, /* partial_inplace */
1095 0xffff, /* dst_mask */
1096 FALSE), /* pcrel_offset */
1098 /* Like GOT_TLSLD16, but no overflow. */
1099 HOWTO (R_PPC_GOT_TLSLD16_LO,
1101 1, /* size (0 = byte, 1 = short, 2 = long) */
1103 FALSE, /* pc_relative */
1105 complain_overflow_dont, /* complain_on_overflow */
1106 ppc_elf_unhandled_reloc, /* special_function */
1107 "R_PPC_GOT_TLSLD16_LO", /* name */
1108 FALSE, /* partial_inplace */
1110 0xffff, /* dst_mask */
1111 FALSE), /* pcrel_offset */
1113 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1114 HOWTO (R_PPC_GOT_TLSLD16_HI,
1115 16, /* rightshift */
1116 1, /* size (0 = byte, 1 = short, 2 = long) */
1118 FALSE, /* pc_relative */
1120 complain_overflow_dont, /* complain_on_overflow */
1121 ppc_elf_unhandled_reloc, /* special_function */
1122 "R_PPC_GOT_TLSLD16_HI", /* name */
1123 FALSE, /* partial_inplace */
1125 0xffff, /* dst_mask */
1126 FALSE), /* pcrel_offset */
1128 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1129 HOWTO (R_PPC_GOT_TLSLD16_HA,
1130 16, /* rightshift */
1131 1, /* size (0 = byte, 1 = short, 2 = long) */
1133 FALSE, /* pc_relative */
1135 complain_overflow_dont, /* complain_on_overflow */
1136 ppc_elf_unhandled_reloc, /* special_function */
1137 "R_PPC_GOT_TLSLD16_HA", /* name */
1138 FALSE, /* partial_inplace */
1140 0xffff, /* dst_mask */
1141 FALSE), /* pcrel_offset */
1143 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1144 the offset to the entry. */
1145 HOWTO (R_PPC_GOT_DTPREL16,
1147 1, /* size (0 = byte, 1 = short, 2 = long) */
1149 FALSE, /* pc_relative */
1151 complain_overflow_signed, /* complain_on_overflow */
1152 ppc_elf_unhandled_reloc, /* special_function */
1153 "R_PPC_GOT_DTPREL16", /* name */
1154 FALSE, /* partial_inplace */
1156 0xffff, /* dst_mask */
1157 FALSE), /* pcrel_offset */
1159 /* Like GOT_DTPREL16, but no overflow. */
1160 HOWTO (R_PPC_GOT_DTPREL16_LO,
1162 1, /* size (0 = byte, 1 = short, 2 = long) */
1164 FALSE, /* pc_relative */
1166 complain_overflow_dont, /* complain_on_overflow */
1167 ppc_elf_unhandled_reloc, /* special_function */
1168 "R_PPC_GOT_DTPREL16_LO", /* name */
1169 FALSE, /* partial_inplace */
1171 0xffff, /* dst_mask */
1172 FALSE), /* pcrel_offset */
1174 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1175 HOWTO (R_PPC_GOT_DTPREL16_HI,
1176 16, /* rightshift */
1177 1, /* size (0 = byte, 1 = short, 2 = long) */
1179 FALSE, /* pc_relative */
1181 complain_overflow_dont, /* complain_on_overflow */
1182 ppc_elf_unhandled_reloc, /* special_function */
1183 "R_PPC_GOT_DTPREL16_HI", /* name */
1184 FALSE, /* partial_inplace */
1186 0xffff, /* dst_mask */
1187 FALSE), /* pcrel_offset */
1189 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1190 HOWTO (R_PPC_GOT_DTPREL16_HA,
1191 16, /* rightshift */
1192 1, /* size (0 = byte, 1 = short, 2 = long) */
1194 FALSE, /* pc_relative */
1196 complain_overflow_dont, /* complain_on_overflow */
1197 ppc_elf_unhandled_reloc, /* special_function */
1198 "R_PPC_GOT_DTPREL16_HA", /* name */
1199 FALSE, /* partial_inplace */
1201 0xffff, /* dst_mask */
1202 FALSE), /* pcrel_offset */
1204 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1205 offset to the entry. */
1206 HOWTO (R_PPC_GOT_TPREL16,
1208 1, /* size (0 = byte, 1 = short, 2 = long) */
1210 FALSE, /* pc_relative */
1212 complain_overflow_signed, /* complain_on_overflow */
1213 ppc_elf_unhandled_reloc, /* special_function */
1214 "R_PPC_GOT_TPREL16", /* name */
1215 FALSE, /* partial_inplace */
1217 0xffff, /* dst_mask */
1218 FALSE), /* pcrel_offset */
1220 /* Like GOT_TPREL16, but no overflow. */
1221 HOWTO (R_PPC_GOT_TPREL16_LO,
1223 1, /* size (0 = byte, 1 = short, 2 = long) */
1225 FALSE, /* pc_relative */
1227 complain_overflow_dont, /* complain_on_overflow */
1228 ppc_elf_unhandled_reloc, /* special_function */
1229 "R_PPC_GOT_TPREL16_LO", /* name */
1230 FALSE, /* partial_inplace */
1232 0xffff, /* dst_mask */
1233 FALSE), /* pcrel_offset */
1235 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1236 HOWTO (R_PPC_GOT_TPREL16_HI,
1237 16, /* rightshift */
1238 1, /* size (0 = byte, 1 = short, 2 = long) */
1240 FALSE, /* pc_relative */
1242 complain_overflow_dont, /* complain_on_overflow */
1243 ppc_elf_unhandled_reloc, /* special_function */
1244 "R_PPC_GOT_TPREL16_HI", /* name */
1245 FALSE, /* partial_inplace */
1247 0xffff, /* dst_mask */
1248 FALSE), /* pcrel_offset */
1250 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1251 HOWTO (R_PPC_GOT_TPREL16_HA,
1252 16, /* rightshift */
1253 1, /* size (0 = byte, 1 = short, 2 = long) */
1255 FALSE, /* pc_relative */
1257 complain_overflow_dont, /* complain_on_overflow */
1258 ppc_elf_unhandled_reloc, /* special_function */
1259 "R_PPC_GOT_TPREL16_HA", /* name */
1260 FALSE, /* partial_inplace */
1262 0xffff, /* dst_mask */
1263 FALSE), /* pcrel_offset */
1265 /* The remaining relocs are from the Embedded ELF ABI, and are not
1266 in the SVR4 ELF ABI. */
1268 /* 32 bit value resulting from the addend minus the symbol. */
1269 HOWTO (R_PPC_EMB_NADDR32, /* type */
1271 2, /* size (0 = byte, 1 = short, 2 = long) */
1273 FALSE, /* pc_relative */
1275 complain_overflow_dont, /* complain_on_overflow */
1276 ppc_elf_unhandled_reloc, /* special_function */
1277 "R_PPC_EMB_NADDR32", /* name */
1278 FALSE, /* partial_inplace */
1280 0xffffffff, /* dst_mask */
1281 FALSE), /* pcrel_offset */
1283 /* 16 bit value resulting from the addend minus the symbol. */
1284 HOWTO (R_PPC_EMB_NADDR16, /* type */
1286 1, /* size (0 = byte, 1 = short, 2 = long) */
1288 FALSE, /* pc_relative */
1290 complain_overflow_signed, /* complain_on_overflow */
1291 ppc_elf_unhandled_reloc, /* special_function */
1292 "R_PPC_EMB_NADDR16", /* name */
1293 FALSE, /* partial_inplace */
1295 0xffff, /* dst_mask */
1296 FALSE), /* pcrel_offset */
1298 /* 16 bit value resulting from the addend minus the symbol. */
1299 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1301 1, /* size (0 = byte, 1 = short, 2 = long) */
1303 FALSE, /* pc_relative */
1305 complain_overflow_dont,/* complain_on_overflow */
1306 ppc_elf_unhandled_reloc, /* special_function */
1307 "R_PPC_EMB_ADDR16_LO", /* name */
1308 FALSE, /* partial_inplace */
1310 0xffff, /* dst_mask */
1311 FALSE), /* pcrel_offset */
1313 /* The high order 16 bits of the addend minus the symbol. */
1314 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1315 16, /* rightshift */
1316 1, /* size (0 = byte, 1 = short, 2 = long) */
1318 FALSE, /* pc_relative */
1320 complain_overflow_dont, /* complain_on_overflow */
1321 ppc_elf_unhandled_reloc, /* special_function */
1322 "R_PPC_EMB_NADDR16_HI", /* name */
1323 FALSE, /* partial_inplace */
1325 0xffff, /* dst_mask */
1326 FALSE), /* pcrel_offset */
1328 /* The high order 16 bits of the result of the addend minus the address,
1329 plus 1 if the contents of the low 16 bits, treated as a signed number,
1331 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1332 16, /* rightshift */
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1335 FALSE, /* pc_relative */
1337 complain_overflow_dont, /* complain_on_overflow */
1338 ppc_elf_unhandled_reloc, /* special_function */
1339 "R_PPC_EMB_NADDR16_HA", /* name */
1340 FALSE, /* partial_inplace */
1342 0xffff, /* dst_mask */
1343 FALSE), /* pcrel_offset */
1345 /* 16 bit value resulting from allocating a 4 byte word to hold an
1346 address in the .sdata section, and returning the offset from
1347 _SDA_BASE_ for that relocation. */
1348 HOWTO (R_PPC_EMB_SDAI16, /* type */
1350 1, /* size (0 = byte, 1 = short, 2 = long) */
1352 FALSE, /* pc_relative */
1354 complain_overflow_signed, /* complain_on_overflow */
1355 ppc_elf_unhandled_reloc, /* special_function */
1356 "R_PPC_EMB_SDAI16", /* name */
1357 FALSE, /* partial_inplace */
1359 0xffff, /* dst_mask */
1360 FALSE), /* pcrel_offset */
1362 /* 16 bit value resulting from allocating a 4 byte word to hold an
1363 address in the .sdata2 section, and returning the offset from
1364 _SDA2_BASE_ for that relocation. */
1365 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1367 1, /* size (0 = byte, 1 = short, 2 = long) */
1369 FALSE, /* pc_relative */
1371 complain_overflow_signed, /* complain_on_overflow */
1372 ppc_elf_unhandled_reloc, /* special_function */
1373 "R_PPC_EMB_SDA2I16", /* name */
1374 FALSE, /* partial_inplace */
1376 0xffff, /* dst_mask */
1377 FALSE), /* pcrel_offset */
1379 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1380 small data items. */
1381 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1383 1, /* size (0 = byte, 1 = short, 2 = long) */
1385 FALSE, /* pc_relative */
1387 complain_overflow_signed, /* complain_on_overflow */
1388 ppc_elf_unhandled_reloc, /* special_function */
1389 "R_PPC_EMB_SDA2REL", /* name */
1390 FALSE, /* partial_inplace */
1392 0xffff, /* dst_mask */
1393 FALSE), /* pcrel_offset */
1395 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1396 signed offset from the appropriate base, and filling in the register
1397 field with the appropriate register (0, 2, or 13). */
1398 HOWTO (R_PPC_EMB_SDA21, /* type */
1400 2, /* size (0 = byte, 1 = short, 2 = long) */
1402 FALSE, /* pc_relative */
1404 complain_overflow_signed, /* complain_on_overflow */
1405 ppc_elf_unhandled_reloc, /* special_function */
1406 "R_PPC_EMB_SDA21", /* name */
1407 FALSE, /* partial_inplace */
1409 0xffff, /* dst_mask */
1410 FALSE), /* pcrel_offset */
1412 /* Relocation not handled: R_PPC_EMB_MRKREF */
1413 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1414 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1415 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1416 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1417 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1419 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1420 in the 16 bit signed offset from the appropriate base, and filling in the
1421 register field with the appropriate register (0, 2, or 13). */
1422 HOWTO (R_PPC_EMB_RELSDA, /* type */
1424 1, /* size (0 = byte, 1 = short, 2 = long) */
1426 FALSE, /* pc_relative */
1428 complain_overflow_signed, /* complain_on_overflow */
1429 ppc_elf_unhandled_reloc, /* special_function */
1430 "R_PPC_EMB_RELSDA", /* name */
1431 FALSE, /* partial_inplace */
1433 0xffff, /* dst_mask */
1434 FALSE), /* pcrel_offset */
1436 /* A relative 8 bit branch. */
1437 HOWTO (R_PPC_VLE_REL8, /* type */
1439 1, /* size (0 = byte, 1 = short, 2 = long) */
1441 TRUE, /* pc_relative */
1443 complain_overflow_signed, /* complain_on_overflow */
1444 bfd_elf_generic_reloc, /* special_function */
1445 "R_PPC_VLE_REL8", /* name */
1446 FALSE, /* partial_inplace */
1448 0xff, /* dst_mask */
1449 TRUE), /* pcrel_offset */
1451 /* A relative 15 bit branch. */
1452 HOWTO (R_PPC_VLE_REL15, /* type */
1454 2, /* size (0 = byte, 1 = short, 2 = long) */
1456 TRUE, /* pc_relative */
1458 complain_overflow_signed, /* complain_on_overflow */
1459 bfd_elf_generic_reloc, /* special_function */
1460 "R_PPC_VLE_REL15", /* name */
1461 FALSE, /* partial_inplace */
1463 0xfffe, /* dst_mask */
1464 TRUE), /* pcrel_offset */
1466 /* A relative 24 bit branch. */
1467 HOWTO (R_PPC_VLE_REL24, /* type */
1469 2, /* size (0 = byte, 1 = short, 2 = long) */
1471 TRUE, /* pc_relative */
1473 complain_overflow_signed, /* complain_on_overflow */
1474 bfd_elf_generic_reloc, /* special_function */
1475 "R_PPC_VLE_REL24", /* name */
1476 FALSE, /* partial_inplace */
1478 0x1fffffe, /* dst_mask */
1479 TRUE), /* pcrel_offset */
1481 /* The 16 LSBS in split16a format. */
1482 HOWTO (R_PPC_VLE_LO16A, /* type */
1484 2, /* size (0 = byte, 1 = short, 2 = long) */
1486 FALSE, /* pc_relative */
1488 complain_overflow_dont, /* complain_on_overflow */
1489 ppc_elf_unhandled_reloc, /* special_function */
1490 "R_PPC_VLE_LO16A", /* name */
1491 FALSE, /* partial_inplace */
1493 0x1f07ff, /* dst_mask */
1494 FALSE), /* pcrel_offset */
1496 /* The 16 LSBS in split16d format. */
1497 HOWTO (R_PPC_VLE_LO16D, /* type */
1499 2, /* size (0 = byte, 1 = short, 2 = long) */
1501 FALSE, /* pc_relative */
1503 complain_overflow_dont, /* complain_on_overflow */
1504 ppc_elf_unhandled_reloc, /* special_function */
1505 "R_PPC_VLE_LO16D", /* name */
1506 FALSE, /* partial_inplace */
1508 0x3e007ff, /* dst_mask */
1509 FALSE), /* pcrel_offset */
1511 /* Bits 16-31 split16a format. */
1512 HOWTO (R_PPC_VLE_HI16A, /* type */
1513 16, /* rightshift */
1514 2, /* size (0 = byte, 1 = short, 2 = long) */
1516 FALSE, /* pc_relative */
1518 complain_overflow_dont, /* complain_on_overflow */
1519 ppc_elf_unhandled_reloc, /* special_function */
1520 "R_PPC_VLE_HI16A", /* name */
1521 FALSE, /* partial_inplace */
1523 0x1f07ff, /* dst_mask */
1524 FALSE), /* pcrel_offset */
1526 /* Bits 16-31 split16d format. */
1527 HOWTO (R_PPC_VLE_HI16D, /* type */
1528 16, /* rightshift */
1529 2, /* size (0 = byte, 1 = short, 2 = long) */
1531 FALSE, /* pc_relative */
1533 complain_overflow_dont, /* complain_on_overflow */
1534 ppc_elf_unhandled_reloc, /* special_function */
1535 "R_PPC_VLE_HI16D", /* name */
1536 FALSE, /* partial_inplace */
1538 0x3e007ff, /* dst_mask */
1539 FALSE), /* pcrel_offset */
1541 /* Bits 16-31 (High Adjusted) in split16a format. */
1542 HOWTO (R_PPC_VLE_HA16A, /* type */
1543 16, /* rightshift */
1544 2, /* size (0 = byte, 1 = short, 2 = long) */
1546 FALSE, /* pc_relative */
1548 complain_overflow_dont, /* complain_on_overflow */
1549 ppc_elf_unhandled_reloc, /* special_function */
1550 "R_PPC_VLE_HA16A", /* name */
1551 FALSE, /* partial_inplace */
1553 0x1f07ff, /* dst_mask */
1554 FALSE), /* pcrel_offset */
1556 /* Bits 16-31 (High Adjusted) in split16d format. */
1557 HOWTO (R_PPC_VLE_HA16D, /* type */
1558 16, /* rightshift */
1559 2, /* size (0 = byte, 1 = short, 2 = long) */
1561 FALSE, /* pc_relative */
1563 complain_overflow_dont, /* complain_on_overflow */
1564 ppc_elf_unhandled_reloc, /* special_function */
1565 "R_PPC_VLE_HA16D", /* name */
1566 FALSE, /* partial_inplace */
1568 0x3e007ff, /* dst_mask */
1569 FALSE), /* pcrel_offset */
1571 /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
1572 instructions. If the register base is 0 then the linker changes
1573 the e_add16i to an e_li instruction. */
1574 HOWTO (R_PPC_VLE_SDA21, /* type */
1576 2, /* size (0 = byte, 1 = short, 2 = long) */
1578 FALSE, /* pc_relative */
1580 complain_overflow_signed, /* complain_on_overflow */
1581 ppc_elf_unhandled_reloc, /* special_function */
1582 "R_PPC_VLE_SDA21", /* name */
1583 FALSE, /* partial_inplace */
1585 0xffff, /* dst_mask */
1586 FALSE), /* pcrel_offset */
1588 /* Like R_PPC_VLE_SDA21 but ignore overflow. */
1589 HOWTO (R_PPC_VLE_SDA21_LO, /* type */
1591 2, /* size (0 = byte, 1 = short, 2 = long) */
1593 FALSE, /* pc_relative */
1595 complain_overflow_dont, /* complain_on_overflow */
1596 ppc_elf_unhandled_reloc, /* special_function */
1597 "R_PPC_VLE_SDA21_LO", /* name */
1598 FALSE, /* partial_inplace */
1600 0xffff, /* dst_mask */
1601 FALSE), /* pcrel_offset */
1603 /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */
1604 HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
1606 2, /* size (0 = byte, 1 = short, 2 = long) */
1608 FALSE, /* pc_relative */
1610 complain_overflow_dont, /* complain_on_overflow */
1611 ppc_elf_unhandled_reloc, /* special_function */
1612 "R_PPC_VLE_SDAREL_LO16A", /* name */
1613 FALSE, /* partial_inplace */
1615 0x1f07ff, /* dst_mask */
1616 FALSE), /* pcrel_offset */
1618 /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */
1619 HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
1621 2, /* size (0 = byte, 1 = short, 2 = long) */
1623 FALSE, /* pc_relative */
1625 complain_overflow_dont, /* complain_on_overflow */
1626 ppc_elf_unhandled_reloc, /* special_function */
1627 "R_PPC_VLE_SDAREL_LO16D", /* name */
1628 FALSE, /* partial_inplace */
1630 0x3e007ff, /* dst_mask */
1631 FALSE), /* pcrel_offset */
1633 /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */
1634 HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
1635 16, /* rightshift */
1636 2, /* size (0 = byte, 1 = short, 2 = long) */
1638 FALSE, /* pc_relative */
1640 complain_overflow_dont, /* complain_on_overflow */
1641 ppc_elf_unhandled_reloc, /* special_function */
1642 "R_PPC_VLE_SDAREL_HI16A", /* name */
1643 FALSE, /* partial_inplace */
1645 0x1f07ff, /* dst_mask */
1646 FALSE), /* pcrel_offset */
1648 /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */
1649 HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
1650 16, /* rightshift */
1651 2, /* size (0 = byte, 1 = short, 2 = long) */
1653 FALSE, /* pc_relative */
1655 complain_overflow_dont, /* complain_on_overflow */
1656 ppc_elf_unhandled_reloc, /* special_function */
1657 "R_PPC_VLE_SDAREL_HI16D", /* name */
1658 FALSE, /* partial_inplace */
1660 0x3e007ff, /* dst_mask */
1661 FALSE), /* pcrel_offset */
1663 /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */
1664 HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
1665 16, /* rightshift */
1666 2, /* size (0 = byte, 1 = short, 2 = long) */
1668 FALSE, /* pc_relative */
1670 complain_overflow_dont, /* complain_on_overflow */
1671 ppc_elf_unhandled_reloc, /* special_function */
1672 "R_PPC_VLE_SDAREL_HA16A", /* name */
1673 FALSE, /* partial_inplace */
1675 0x1f07ff, /* dst_mask */
1676 FALSE), /* pcrel_offset */
1678 /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */
1679 HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
1680 16, /* rightshift */
1681 2, /* size (0 = byte, 1 = short, 2 = long) */
1683 FALSE, /* pc_relative */
1685 complain_overflow_dont, /* complain_on_overflow */
1686 ppc_elf_unhandled_reloc, /* special_function */
1687 "R_PPC_VLE_SDAREL_HA16D", /* name */
1688 FALSE, /* partial_inplace */
1690 0x3e007ff, /* dst_mask */
1691 FALSE), /* pcrel_offset */
1693 /* e_li split20 format. */
1694 HOWTO (R_PPC_VLE_ADDR20, /* type */
1695 16, /* rightshift */
1696 2, /* size (0 = byte, 1 = short, 2 = long) */
1698 FALSE, /* pc_relative */
1700 complain_overflow_dont, /* complain_on_overflow */
1701 bfd_elf_generic_reloc, /* special_function */
1702 "R_PPC_VLE_ADDR20", /* name */
1703 FALSE, /* partial_inplace */
1705 0x1f07ff, /* dst_mask */
1706 FALSE), /* pcrel_offset */
1708 HOWTO (R_PPC_IRELATIVE, /* type */
1710 2, /* size (0 = byte, 1 = short, 2 = long) */
1712 FALSE, /* pc_relative */
1714 complain_overflow_dont, /* complain_on_overflow */
1715 ppc_elf_unhandled_reloc, /* special_function */
1716 "R_PPC_IRELATIVE", /* name */
1717 FALSE, /* partial_inplace */
1719 0xffffffff, /* dst_mask */
1720 FALSE), /* pcrel_offset */
1722 /* A 16 bit relative relocation. */
1723 HOWTO (R_PPC_REL16, /* type */
1725 1, /* size (0 = byte, 1 = short, 2 = long) */
1727 TRUE, /* pc_relative */
1729 complain_overflow_signed, /* complain_on_overflow */
1730 bfd_elf_generic_reloc, /* special_function */
1731 "R_PPC_REL16", /* name */
1732 FALSE, /* partial_inplace */
1734 0xffff, /* dst_mask */
1735 TRUE), /* pcrel_offset */
1737 /* A 16 bit relative relocation without overflow. */
1738 HOWTO (R_PPC_REL16_LO, /* type */
1740 1, /* size (0 = byte, 1 = short, 2 = long) */
1742 TRUE, /* pc_relative */
1744 complain_overflow_dont,/* complain_on_overflow */
1745 bfd_elf_generic_reloc, /* special_function */
1746 "R_PPC_REL16_LO", /* name */
1747 FALSE, /* partial_inplace */
1749 0xffff, /* dst_mask */
1750 TRUE), /* pcrel_offset */
1752 /* The high order 16 bits of a relative address. */
1753 HOWTO (R_PPC_REL16_HI, /* type */
1754 16, /* rightshift */
1755 1, /* size (0 = byte, 1 = short, 2 = long) */
1757 TRUE, /* pc_relative */
1759 complain_overflow_dont, /* complain_on_overflow */
1760 bfd_elf_generic_reloc, /* special_function */
1761 "R_PPC_REL16_HI", /* name */
1762 FALSE, /* partial_inplace */
1764 0xffff, /* dst_mask */
1765 TRUE), /* pcrel_offset */
1767 /* The high order 16 bits of a relative address, plus 1 if the contents of
1768 the low 16 bits, treated as a signed number, is negative. */
1769 HOWTO (R_PPC_REL16_HA, /* type */
1770 16, /* rightshift */
1771 1, /* size (0 = byte, 1 = short, 2 = long) */
1773 TRUE, /* pc_relative */
1775 complain_overflow_dont, /* complain_on_overflow */
1776 ppc_elf_addr16_ha_reloc, /* special_function */
1777 "R_PPC_REL16_HA", /* name */
1778 FALSE, /* partial_inplace */
1780 0xffff, /* dst_mask */
1781 TRUE), /* pcrel_offset */
1783 /* Like R_PPC_REL16_HA but for split field in addpcis. */
1784 HOWTO (R_PPC_REL16DX_HA, /* type */
1785 16, /* rightshift */
1786 2, /* size (0 = byte, 1 = short, 2 = long) */
1788 TRUE, /* pc_relative */
1790 complain_overflow_signed, /* complain_on_overflow */
1791 ppc_elf_addr16_ha_reloc, /* special_function */
1792 "R_PPC_REL16DX_HA", /* name */
1793 FALSE, /* partial_inplace */
1795 0x1fffc1, /* dst_mask */
1796 TRUE), /* pcrel_offset */
1798 /* A split-field reloc for addpcis, non-relative (gas internal use only). */
1799 HOWTO (R_PPC_16DX_HA, /* type */
1800 16, /* rightshift */
1801 2, /* size (0 = byte, 1 = short, 2 = long) */
1803 FALSE, /* pc_relative */
1805 complain_overflow_signed, /* complain_on_overflow */
1806 ppc_elf_addr16_ha_reloc, /* special_function */
1807 "R_PPC_16DX_HA", /* name */
1808 FALSE, /* partial_inplace */
1810 0x1fffc1, /* dst_mask */
1811 FALSE), /* pcrel_offset */
1813 /* GNU extension to record C++ vtable hierarchy. */
1814 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1816 0, /* size (0 = byte, 1 = short, 2 = long) */
1818 FALSE, /* pc_relative */
1820 complain_overflow_dont, /* complain_on_overflow */
1821 NULL, /* special_function */
1822 "R_PPC_GNU_VTINHERIT", /* name */
1823 FALSE, /* partial_inplace */
1826 FALSE), /* pcrel_offset */
1828 /* GNU extension to record C++ vtable member usage. */
1829 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1831 0, /* size (0 = byte, 1 = short, 2 = long) */
1833 FALSE, /* pc_relative */
1835 complain_overflow_dont, /* complain_on_overflow */
1836 NULL, /* special_function */
1837 "R_PPC_GNU_VTENTRY", /* name */
1838 FALSE, /* partial_inplace */
1841 FALSE), /* pcrel_offset */
1843 /* Phony reloc to handle AIX style TOC entries. */
1844 HOWTO (R_PPC_TOC16, /* type */
1846 1, /* size (0 = byte, 1 = short, 2 = long) */
1848 FALSE, /* pc_relative */
1850 complain_overflow_signed, /* complain_on_overflow */
1851 ppc_elf_unhandled_reloc, /* special_function */
1852 "R_PPC_TOC16", /* name */
1853 FALSE, /* partial_inplace */
1855 0xffff, /* dst_mask */
1856 FALSE), /* pcrel_offset */
1859 /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1862 ppc_elf_howto_init (void)
1864 unsigned int i, type;
1867 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1870 type = ppc_elf_howto_raw[i].type;
1871 if (type >= (sizeof (ppc_elf_howto_table)
1872 / sizeof (ppc_elf_howto_table[0])))
1874 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1878 static reloc_howto_type *
1879 ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1880 bfd_reloc_code_real_type code)
1882 enum elf_ppc_reloc_type r;
1884 /* Initialize howto table if not already done. */
1885 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1886 ppc_elf_howto_init ();
1893 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1894 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1895 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1896 case BFD_RELOC_PPC64_ADDR16_DS:
1897 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1898 case BFD_RELOC_PPC64_ADDR16_LO_DS:
1899 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1900 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1901 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1902 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1903 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1904 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1905 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1906 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1907 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1908 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1909 case BFD_RELOC_PPC64_GOT16_DS:
1910 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1911 case BFD_RELOC_PPC64_GOT16_LO_DS:
1912 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1913 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1914 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1915 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1916 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1917 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1918 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1919 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1920 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1921 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1922 case BFD_RELOC_PPC64_PLT16_LO_DS:
1923 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1924 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1925 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1926 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1927 case BFD_RELOC_PPC64_SECTOFF_DS:
1928 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1929 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
1930 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1931 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1932 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1933 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1934 case BFD_RELOC_PPC64_TOC16_DS:
1935 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1936 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
1937 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1938 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
1939 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1940 case BFD_RELOC_PPC64_TPREL16_DS:
1941 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1942 case BFD_RELOC_PPC64_TPREL16_LO_DS:
1943 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1944 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1945 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1946 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1947 case BFD_RELOC_PPC64_DTPREL16_DS:
1948 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1949 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
1950 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1951 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1952 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1953 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1954 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1955 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1956 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1957 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1958 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1959 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1960 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1961 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1962 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1963 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1964 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1965 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1966 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1967 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1968 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1969 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1970 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1971 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1972 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1973 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1974 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1975 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1976 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1977 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1978 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1979 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1980 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1981 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1982 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1983 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1984 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1985 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
1986 case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
1987 case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
1988 case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
1989 case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
1990 case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
1991 case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
1992 case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
1993 case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
1994 case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
1995 case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
1996 case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
1997 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
1998 r = R_PPC_VLE_SDAREL_LO16A;
2000 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
2001 r = R_PPC_VLE_SDAREL_LO16D;
2003 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
2004 r = R_PPC_VLE_SDAREL_HI16A;
2006 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
2007 r = R_PPC_VLE_SDAREL_HI16D;
2009 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
2010 r = R_PPC_VLE_SDAREL_HA16A;
2012 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
2013 r = R_PPC_VLE_SDAREL_HA16D;
2015 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
2016 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
2017 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
2018 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
2019 case BFD_RELOC_PPC_16DX_HA: r = R_PPC_16DX_HA; break;
2020 case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC_REL16DX_HA; break;
2021 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
2022 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
2025 return ppc_elf_howto_table[r];
2028 static reloc_howto_type *
2029 ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2035 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
2037 if (ppc_elf_howto_raw[i].name != NULL
2038 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
2039 return &ppc_elf_howto_raw[i];
2044 /* Set the howto pointer for a PowerPC ELF reloc. */
2047 ppc_elf_info_to_howto (bfd *abfd,
2049 Elf_Internal_Rela *dst)
2051 unsigned int r_type;
2053 /* Initialize howto table if not already done. */
2054 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2055 ppc_elf_howto_init ();
2057 r_type = ELF32_R_TYPE (dst->r_info);
2058 if (r_type >= R_PPC_max)
2060 /* xgettext:c-format */
2061 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
2063 bfd_set_error (bfd_error_bad_value);
2067 cache_ptr->howto = ppc_elf_howto_table[r_type];
2069 /* Just because the above assert didn't trigger doesn't mean that
2070 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
2071 if (cache_ptr->howto == NULL)
2073 /* xgettext:c-format */
2074 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
2076 bfd_set_error (bfd_error_bad_value);
2084 /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
2086 static bfd_reloc_status_type
2087 ppc_elf_addr16_ha_reloc (bfd *abfd,
2088 arelent *reloc_entry,
2091 asection *input_section,
2093 char **error_message ATTRIBUTE_UNUSED)
2095 enum elf_ppc_reloc_type r_type;
2097 bfd_size_type octets;
2100 if (output_bfd != NULL)
2102 reloc_entry->address += input_section->output_offset;
2103 return bfd_reloc_ok;
2106 reloc_entry->addend += 0x8000;
2107 r_type = reloc_entry->howto->type;
2108 if (r_type != R_PPC_REL16DX_HA)
2109 return bfd_reloc_continue;
2112 if (!bfd_is_com_section (symbol->section))
2113 value = symbol->value;
2114 value += (reloc_entry->addend
2115 + symbol->section->output_offset
2116 + symbol->section->output_section->vma);
2117 value -= (reloc_entry->address
2118 + input_section->output_offset
2119 + input_section->output_section->vma);
2122 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2123 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2125 insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
2126 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2127 return bfd_reloc_ok;
2130 static bfd_reloc_status_type
2131 ppc_elf_unhandled_reloc (bfd *abfd,
2132 arelent *reloc_entry,
2135 asection *input_section,
2137 char **error_message)
2139 /* If this is a relocatable link (output_bfd test tells us), just
2140 call the generic function. Any adjustment will be done at final
2142 if (output_bfd != NULL)
2143 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2144 input_section, output_bfd, error_message);
2146 if (error_message != NULL)
2148 static char buf[60];
2149 sprintf (buf, _("generic linker can't handle %s"),
2150 reloc_entry->howto->name);
2151 *error_message = buf;
2153 return bfd_reloc_dangerous;
2156 /* Sections created by the linker. */
2158 typedef struct elf_linker_section
2160 /* Pointer to the bfd section. */
2164 /* Associated bss section name. */
2165 const char *bss_name;
2166 /* Associated symbol name. */
2167 const char *sym_name;
2168 /* Associated symbol. */
2169 struct elf_link_hash_entry *sym;
2170 } elf_linker_section_t;
2172 /* Linked list of allocated pointer entries. This hangs off of the
2173 symbol lists, and provides allows us to return different pointers,
2174 based on different addend's. */
2176 typedef struct elf_linker_section_pointers
2178 /* next allocated pointer for this symbol */
2179 struct elf_linker_section_pointers *next;
2180 /* offset of pointer from beginning of section */
2184 /* which linker section this is */
2185 elf_linker_section_t *lsect;
2186 } elf_linker_section_pointers_t;
2188 struct ppc_elf_obj_tdata
2190 struct elf_obj_tdata elf;
2192 /* A mapping from local symbols to offsets into the various linker
2193 sections added. This is index by the symbol index. */
2194 elf_linker_section_pointers_t **linker_section_pointers;
2196 /* Flags used to auto-detect plt type. */
2197 unsigned int makes_plt_call : 1;
2198 unsigned int has_rel16 : 1;
2201 #define ppc_elf_tdata(bfd) \
2202 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
2204 #define elf_local_ptr_offsets(bfd) \
2205 (ppc_elf_tdata (bfd)->linker_section_pointers)
2207 #define is_ppc_elf(bfd) \
2208 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2209 && elf_object_id (bfd) == PPC32_ELF_DATA)
2211 /* Override the generic function because we store some extras. */
2214 ppc_elf_mkobject (bfd *abfd)
2216 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
2220 /* When defaulting arch/mach, decode apuinfo to find a better match. */
2223 _bfd_elf_ppc_set_arch (bfd *abfd)
2225 unsigned long mach = 0;
2227 unsigned char *contents;
2229 if (abfd->arch_info->bits_per_word == 32
2230 && bfd_big_endian (abfd))
2233 for (s = abfd->sections; s != NULL; s = s->next)
2234 if ((elf_section_data (s)->this_hdr.sh_flags & SHF_PPC_VLE) != 0)
2237 mach = bfd_mach_ppc_vle;
2242 s = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2243 if (s != NULL && bfd_malloc_and_get_section (abfd, s, &contents))
2245 unsigned int apuinfo_size = bfd_get_32 (abfd, contents + 4);
2248 for (i = 20; i < apuinfo_size + 20 && i + 4 <= s->size; i += 4)
2250 unsigned int val = bfd_get_32 (abfd, contents + i);
2253 case PPC_APUINFO_PMR:
2254 case PPC_APUINFO_RFMCI:
2256 mach = bfd_mach_ppc_titan;
2259 case PPC_APUINFO_ISEL:
2260 case PPC_APUINFO_CACHELCK:
2261 if (mach == bfd_mach_ppc_titan)
2262 mach = bfd_mach_ppc_e500mc;
2265 case PPC_APUINFO_SPE:
2266 case PPC_APUINFO_EFS:
2267 case PPC_APUINFO_BRLOCK:
2268 if (mach != bfd_mach_ppc_vle)
2269 mach = bfd_mach_ppc_e500;
2272 case PPC_APUINFO_VLE:
2273 mach = bfd_mach_ppc_vle;
2284 if (mach != 0 && mach != -1ul)
2286 const bfd_arch_info_type *arch;
2288 for (arch = abfd->arch_info->next; arch; arch = arch->next)
2289 if (arch->mach == mach)
2291 abfd->arch_info = arch;
2298 /* Fix bad default arch selected for a 32 bit input bfd when the
2299 default is 64 bit. Also select arch based on apuinfo. */
2302 ppc_elf_object_p (bfd *abfd)
2304 if (!abfd->arch_info->the_default)
2307 if (abfd->arch_info->bits_per_word == 64)
2309 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2311 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2313 /* Relies on arch after 64 bit default being 32 bit default. */
2314 abfd->arch_info = abfd->arch_info->next;
2315 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2318 return _bfd_elf_ppc_set_arch (abfd);
2321 /* Function to set whether a module needs the -mrelocatable bit set. */
2324 ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2326 BFD_ASSERT (!elf_flags_init (abfd)
2327 || elf_elfheader (abfd)->e_flags == flags);
2329 elf_elfheader (abfd)->e_flags = flags;
2330 elf_flags_init (abfd) = TRUE;
2334 /* Support for core dump NOTE sections. */
2337 ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2342 switch (note->descsz)
2347 case 268: /* Linux/PPC. */
2349 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
2352 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
2361 /* Make a ".reg/999" section. */
2362 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2363 size, note->descpos + offset);
2367 ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2369 switch (note->descsz)
2374 case 128: /* Linux/PPC elf_prpsinfo. */
2375 elf_tdata (abfd)->core->pid
2376 = bfd_get_32 (abfd, note->descdata + 16);
2377 elf_tdata (abfd)->core->program
2378 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
2379 elf_tdata (abfd)->core->command
2380 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2383 /* Note that for some reason, a spurious space is tacked
2384 onto the end of the args in some (at least one anyway)
2385 implementations, so strip it off if it exists. */
2388 char *command = elf_tdata (abfd)->core->command;
2389 int n = strlen (command);
2391 if (0 < n && command[n - 1] == ' ')
2392 command[n - 1] = '\0';
2399 ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
2411 va_start (ap, note_type);
2412 memset (data, 0, sizeof (data));
2413 strncpy (data + 32, va_arg (ap, const char *), 16);
2414 strncpy (data + 48, va_arg (ap, const char *), 80);
2416 return elfcore_write_note (abfd, buf, bufsiz,
2417 "CORE", note_type, data, sizeof (data));
2428 va_start (ap, note_type);
2429 memset (data, 0, 72);
2430 pid = va_arg (ap, long);
2431 bfd_put_32 (abfd, pid, data + 24);
2432 cursig = va_arg (ap, int);
2433 bfd_put_16 (abfd, cursig, data + 12);
2434 greg = va_arg (ap, const void *);
2435 memcpy (data + 72, greg, 192);
2436 memset (data + 264, 0, 4);
2438 return elfcore_write_note (abfd, buf, bufsiz,
2439 "CORE", note_type, data, sizeof (data));
2445 ppc_elf_lookup_section_flags (char *flag_name)
2448 if (!strcmp (flag_name, "SHF_PPC_VLE"))
2454 /* Return address for Ith PLT stub in section PLT, for relocation REL
2455 or (bfd_vma) -1 if it should not be included. */
2458 ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
2459 const asection *plt ATTRIBUTE_UNUSED,
2462 return rel->address;
2465 /* Handle a PowerPC specific section when reading an object file. This
2466 is called when bfd_section_from_shdr finds a section with an unknown
2470 ppc_elf_section_from_shdr (bfd *abfd,
2471 Elf_Internal_Shdr *hdr,
2478 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
2481 newsect = hdr->bfd_section;
2482 flags = bfd_get_section_flags (abfd, newsect);
2483 if (hdr->sh_flags & SHF_EXCLUDE)
2484 flags |= SEC_EXCLUDE;
2486 if (hdr->sh_type == SHT_ORDERED)
2487 flags |= SEC_SORT_ENTRIES;
2489 bfd_set_section_flags (abfd, newsect, flags);
2493 /* Set up any other section flags and such that may be necessary. */
2496 ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2497 Elf_Internal_Shdr *shdr,
2500 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2501 shdr->sh_type = SHT_ORDERED;
2506 /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2507 need to bump up the number of section headers. */
2510 ppc_elf_additional_program_headers (bfd *abfd,
2511 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2516 s = bfd_get_section_by_name (abfd, ".sbss2");
2517 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2520 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2521 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2527 /* Modify the segment map for VLE executables. */
2530 ppc_elf_modify_segment_map (bfd *abfd,
2531 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2533 struct elf_segment_map *m;
2535 /* At this point in the link, output sections have already been sorted by
2536 LMA and assigned to segments. All that is left to do is to ensure
2537 there is no mixing of VLE & non-VLE sections in a text segment.
2538 If we find that case, we split the segment.
2539 We maintain the original output section order. */
2541 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
2543 struct elf_segment_map *n;
2546 unsigned int p_flags;
2548 if (m->p_type != PT_LOAD || m->count == 0)
2551 for (p_flags = PF_R, j = 0; j != m->count; ++j)
2553 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2555 if ((m->sections[j]->flags & SEC_CODE) != 0)
2558 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2559 p_flags |= PF_PPC_VLE;
2564 while (++j != m->count)
2566 unsigned int p_flags1 = PF_R;
2568 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2570 if ((m->sections[j]->flags & SEC_CODE) != 0)
2573 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2574 p_flags1 |= PF_PPC_VLE;
2575 if (((p_flags1 ^ p_flags) & PF_PPC_VLE) != 0)
2578 p_flags |= p_flags1;
2580 /* If we're splitting a segment which originally contained rw
2581 sections then those sections might now only be in one of the
2582 two parts. So always set p_flags if splitting, even if we
2583 are being called for objcopy with p_flags_valid set. */
2584 if (j != m->count || !m->p_flags_valid)
2586 m->p_flags_valid = 1;
2587 m->p_flags = p_flags;
2592 /* Sections 0..j-1 stay in this (current) segment,
2593 the remainder are put in a new segment.
2594 The scan resumes with the new segment. */
2596 amt = sizeof (struct elf_segment_map);
2597 amt += (m->count - j - 1) * sizeof (asection *);
2598 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2602 n->p_type = PT_LOAD;
2603 n->count = m->count - j;
2604 for (k = 0; k < n->count; ++k)
2605 n->sections[k] = m->sections[j + k];
2607 m->p_size_valid = 0;
2615 /* Add extra PPC sections -- Note, for now, make .sbss2 and
2616 .PPC.EMB.sbss0 a normal section, and not a bss section so
2617 that the linker doesn't crater when trying to make more than
2620 static const struct bfd_elf_special_section ppc_elf_special_sections[] =
2622 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2623 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2624 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2625 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2626 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2627 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2628 { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 },
2629 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2630 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2631 { NULL, 0, 0, 0, 0 }
2634 /* This is what we want for new plt/got. */
2635 static struct bfd_elf_special_section ppc_alt_plt =
2636 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
2638 static const struct bfd_elf_special_section *
2639 ppc_elf_get_sec_type_attr (bfd *abfd, asection *sec)
2641 const struct bfd_elf_special_section *ssect;
2643 /* See if this is one of the special sections. */
2644 if (sec->name == NULL)
2647 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2651 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2652 ssect = &ppc_alt_plt;
2656 return _bfd_elf_get_sec_type_attr (abfd, sec);
2659 /* Very simple linked list structure for recording apuinfo values. */
2660 typedef struct apuinfo_list
2662 struct apuinfo_list *next;
2663 unsigned long value;
2667 static apuinfo_list *head;
2668 static bfd_boolean apuinfo_set;
2671 apuinfo_list_init (void)
2674 apuinfo_set = FALSE;
2678 apuinfo_list_add (unsigned long value)
2680 apuinfo_list *entry = head;
2682 while (entry != NULL)
2684 if (entry->value == value)
2686 entry = entry->next;
2689 entry = bfd_malloc (sizeof (* entry));
2693 entry->value = value;
2699 apuinfo_list_length (void)
2701 apuinfo_list *entry;
2702 unsigned long count;
2704 for (entry = head, count = 0;
2706 entry = entry->next)
2712 static inline unsigned long
2713 apuinfo_list_element (unsigned long number)
2715 apuinfo_list * entry;
2719 entry = entry->next)
2722 return entry ? entry->value : 0;
2726 apuinfo_list_finish (void)
2728 apuinfo_list *entry;
2730 for (entry = head; entry;)
2732 apuinfo_list *next = entry->next;
2740 /* Scan the input BFDs and create a linked list of
2741 the APUinfo values that will need to be emitted. */
2744 ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2748 char *buffer = NULL;
2749 bfd_size_type largest_input_size = 0;
2751 unsigned long length;
2752 const char *error_message = NULL;
2754 if (link_info == NULL)
2757 apuinfo_list_init ();
2759 /* Read in the input sections contents. */
2760 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
2762 unsigned long datum;
2764 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2768 /* xgettext:c-format */
2769 error_message = _("corrupt %s section in %pB");
2770 length = asec->size;
2775 if (largest_input_size < asec->size)
2779 largest_input_size = asec->size;
2780 buffer = bfd_malloc (largest_input_size);
2785 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
2786 || (bfd_bread (buffer, length, ibfd) != length))
2788 /* xgettext:c-format */
2789 error_message = _("unable to read in %s section from %pB");
2793 /* Verify the contents of the header. Note - we have to
2794 extract the values this way in order to allow for a
2795 host whose endian-ness is different from the target. */
2796 datum = bfd_get_32 (ibfd, buffer);
2797 if (datum != sizeof APUINFO_LABEL)
2800 datum = bfd_get_32 (ibfd, buffer + 8);
2804 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
2807 /* Get the number of bytes used for apuinfo entries. */
2808 datum = bfd_get_32 (ibfd, buffer + 4);
2809 if (datum + 20 != length)
2812 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2813 for (i = 0; i < datum; i += 4)
2814 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
2817 error_message = NULL;
2821 /* Compute the size of the output section. */
2822 unsigned num_entries = apuinfo_list_length ();
2824 /* Set the output section size, if it exists. */
2825 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2827 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2830 /* xgettext:c-format */
2831 error_message = _("warning: unable to set size of %s section in %pB");
2840 _bfd_error_handler (error_message, APUINFO_SECTION_NAME, ibfd);
2843 /* Prevent the output section from accumulating the input sections'
2844 contents. We have already stored this in our linked list structure. */
2847 ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
2848 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2850 bfd_byte *contents ATTRIBUTE_UNUSED)
2852 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
2855 /* Finally we can generate the output section. */
2858 ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
2863 unsigned num_entries;
2864 bfd_size_type length;
2866 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2873 length = asec->size;
2877 buffer = bfd_malloc (length);
2881 (_("failed to allocate space for new APUinfo section"));
2885 /* Create the apuinfo header. */
2886 num_entries = apuinfo_list_length ();
2887 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2888 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2889 bfd_put_32 (abfd, 0x2, buffer + 8);
2890 strcpy ((char *) buffer + 12, APUINFO_LABEL);
2893 for (i = 0; i < num_entries; i++)
2895 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2899 if (length != asec->size)
2900 _bfd_error_handler (_("failed to compute new APUinfo section"));
2902 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2903 _bfd_error_handler (_("failed to install new APUinfo section"));
2907 apuinfo_list_finish ();
2911 is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
2913 bfd_byte buf[4 * 4];
2915 if (!bfd_get_section_contents (abfd, glink, buf, off, sizeof buf))
2918 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2919 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2920 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2921 && bfd_get_32 (abfd, buf + 12) == BCTR);
2925 section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2927 bfd_vma vma = *(bfd_vma *) ptr;
2928 return ((section->flags & SEC_ALLOC) != 0
2929 && section->vma <= vma
2930 && vma < section->vma + section->size);
2934 ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2935 long dynsymcount, asymbol **dynsyms,
2938 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2939 asection *plt, *relplt, *dynamic, *glink;
2940 bfd_vma glink_vma = 0;
2941 bfd_vma resolv_vma = 0;
2945 long count, i, stub_delta;
2952 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2955 if (dynsymcount <= 0)
2958 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2962 plt = bfd_get_section_by_name (abfd, ".plt");
2966 /* Call common code to handle old-style executable PLTs. */
2967 if (elf_section_flags (plt) & SHF_EXECINSTR)
2968 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2969 dynsymcount, dynsyms, ret);
2971 /* If this object was prelinked, the prelinker stored the address
2972 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2973 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2974 if (dynamic != NULL)
2976 bfd_byte *dynbuf, *extdyn, *extdynend;
2978 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2980 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2983 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2984 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2987 extdynend = extdyn + dynamic->size;
2988 for (; extdyn < extdynend; extdyn += extdynsize)
2990 Elf_Internal_Dyn dyn;
2991 (*swap_dyn_in) (abfd, extdyn, &dyn);
2993 if (dyn.d_tag == DT_NULL)
2996 if (dyn.d_tag == DT_PPC_GOT)
2998 unsigned int g_o_t = dyn.d_un.d_val;
2999 asection *got = bfd_get_section_by_name (abfd, ".got");
3001 && bfd_get_section_contents (abfd, got, buf,
3002 g_o_t - got->vma + 4, 4))
3003 glink_vma = bfd_get_32 (abfd, buf);
3010 /* Otherwise we read the first plt entry. */
3013 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
3014 glink_vma = bfd_get_32 (abfd, buf);
3020 /* The .glink section usually does not survive the final
3021 link; search for the section (usually .text) where the
3022 glink stubs now reside. */
3023 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
3027 /* Determine glink PLT resolver by reading the relative branch
3028 from the first glink stub. */
3029 if (bfd_get_section_contents (abfd, glink, buf,
3030 glink_vma - glink->vma, 4))
3032 unsigned int insn = bfd_get_32 (abfd, buf);
3034 /* The first glink stub may either branch to the resolver ... */
3036 if ((insn & ~0x3fffffc) == 0)
3037 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
3039 /* ... or fall through a bunch of NOPs. */
3040 else if ((insn ^ B ^ NOP) == 0)
3042 bfd_get_section_contents (abfd, glink, buf,
3043 glink_vma - glink->vma + i, 4);
3045 if (bfd_get_32 (abfd, buf) != NOP)
3047 resolv_vma = glink_vma + i;
3052 count = relplt->size / sizeof (Elf32_External_Rela);
3053 /* If the stubs are those for -shared/-pie then we might have
3054 multiple stubs for each plt entry. If that is the case then
3055 there is no way to associate stubs with their plt entries short
3056 of figuring out the GOT pointer value used in the stub.
3057 The offsets tested here need to cover all possible values of
3058 GLINK_ENTRY_SIZE for other than __tls_get_addr_opt. */
3059 stub_off = glink_vma - glink->vma;
3060 for (stub_delta = 16; stub_delta <= 32; stub_delta += 8)
3061 if (is_nonpic_glink_stub (abfd, glink, stub_off - stub_delta))
3063 if (stub_delta > 32)
3066 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3067 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
3070 size = count * sizeof (asymbol);
3071 p = relplt->relocation;
3072 for (i = 0; i < count; i++, p++)
3074 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3076 size += sizeof ("+0x") - 1 + 8;
3079 size += sizeof (asymbol) + sizeof ("__glink");
3082 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
3084 s = *ret = bfd_malloc (size);
3088 stub_off = glink_vma - glink->vma;
3089 names = (char *) (s + count + 1 + (resolv_vma != 0));
3090 p = relplt->relocation + count - 1;
3091 for (i = 0; i < count; i++)
3095 stub_off -= stub_delta;
3096 if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
3098 *s = **p->sym_ptr_ptr;
3099 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3100 we are defining a symbol, ensure one of them is set. */
3101 if ((s->flags & BSF_LOCAL) == 0)
3102 s->flags |= BSF_GLOBAL;
3103 s->flags |= BSF_SYNTHETIC;
3105 s->value = stub_off;
3108 len = strlen ((*p->sym_ptr_ptr)->name);
3109 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3113 memcpy (names, "+0x", sizeof ("+0x") - 1);
3114 names += sizeof ("+0x") - 1;
3115 bfd_sprintf_vma (abfd, names, p->addend);
3116 names += strlen (names);
3118 memcpy (names, "@plt", sizeof ("@plt"));
3119 names += sizeof ("@plt");
3124 /* Add a symbol at the start of the glink branch table. */
3125 memset (s, 0, sizeof *s);
3127 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
3129 s->value = glink_vma - glink->vma;
3131 memcpy (names, "__glink", sizeof ("__glink"));
3132 names += sizeof ("__glink");
3138 /* Add a symbol for the glink PLT resolver. */
3139 memset (s, 0, sizeof *s);
3141 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
3143 s->value = resolv_vma - glink->vma;
3145 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3146 names += sizeof ("__glink_PLTresolve");
3154 /* The following functions are specific to the ELF linker, while
3155 functions above are used generally. They appear in this file more
3156 or less in the order in which they are called. eg.
3157 ppc_elf_check_relocs is called early in the link process,
3158 ppc_elf_finish_dynamic_sections is one of the last functions
3161 /* Track PLT entries needed for a given symbol. We might need more
3162 than one glink entry per symbol when generating a pic binary. */
3165 struct plt_entry *next;
3167 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3168 This field stores the offset into .got2 used to initialise the
3169 GOT pointer reg. It will always be at least 32768. (Current
3170 gcc always uses an offset of 32768, but ld -r will pack .got2
3171 sections together resulting in larger offsets). */
3174 /* The .got2 section. */
3177 /* PLT refcount or offset. */
3180 bfd_signed_vma refcount;
3184 /* .glink stub offset. */
3185 bfd_vma glink_offset;
3188 /* Of those relocs that might be copied as dynamic relocs, this
3189 function selects those that must be copied when linking a shared
3190 library or PIE, even when the symbol is local. */
3193 must_be_dyn_reloc (struct bfd_link_info *info,
3194 enum elf_ppc_reloc_type r_type)
3199 /* Only relative relocs can be resolved when the object load
3200 address isn't fixed. DTPREL32 is excluded because the
3201 dynamic linker needs to differentiate global dynamic from
3202 local dynamic __tls_index pairs when PPC_OPT_TLS is set. */
3207 case R_PPC_REL14_BRTAKEN:
3208 case R_PPC_REL14_BRNTAKEN:
3214 case R_PPC_TPREL16_LO:
3215 case R_PPC_TPREL16_HI:
3216 case R_PPC_TPREL16_HA:
3217 /* These relocations are relative but in a shared library the
3218 linker doesn't know the thread pointer base. */
3219 return bfd_link_dll (info);
3223 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3224 copying dynamic variables from a shared lib into an app's dynbss
3225 section, and instead use a dynamic relocation to point into the
3227 #define ELIMINATE_COPY_RELOCS 1
3229 /* Used to track dynamic relocations for local symbols. */
3230 struct ppc_dyn_relocs
3232 struct ppc_dyn_relocs *next;
3234 /* The input section of the reloc. */
3237 /* Total number of relocs copied for the input section. */
3238 unsigned int count : 31;
3240 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3241 unsigned int ifunc : 1;
3244 /* PPC ELF linker hash entry. */
3246 struct ppc_elf_link_hash_entry
3248 struct elf_link_hash_entry elf;
3250 /* If this symbol is used in the linker created sections, the processor
3251 specific backend uses this field to map the field into the offset
3252 from the beginning of the section. */
3253 elf_linker_section_pointers_t *linker_section_pointer;
3255 /* Track dynamic relocs copied for this symbol. */
3256 struct elf_dyn_relocs *dyn_relocs;
3258 /* Contexts in which symbol is used in the GOT.
3259 Bits are or'd into the mask as the corresponding relocs are
3260 encountered during check_relocs, with TLS_TLS being set when any
3261 of the other TLS bits are set. tls_optimize clears bits when
3262 optimizing to indicate the corresponding GOT entry type is not
3263 needed. If set, TLS_TLS is never cleared. tls_optimize may also
3264 set TLS_TPRELGD when a GD reloc turns into a TPREL one. We use a
3265 separate flag rather than setting TPREL just for convenience in
3266 distinguishing the two cases.
3267 These flags are also kept for local symbols. */
3268 #define TLS_TLS 1 /* Any TLS reloc. */
3269 #define TLS_GD 2 /* GD reloc. */
3270 #define TLS_LD 4 /* LD reloc. */
3271 #define TLS_TPREL 8 /* TPREL reloc, => IE. */
3272 #define TLS_DTPREL 16 /* DTPREL reloc, => LD. */
3273 #define TLS_MARK 32 /* __tls_get_addr call marked. */
3274 #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
3275 unsigned char tls_mask;
3277 /* The above field is also used to mark function symbols. In which
3278 case TLS_TLS will be 0. */
3279 #define PLT_IFUNC 2 /* STT_GNU_IFUNC. */
3280 #define PLT_KEEP 4 /* inline plt call requires plt entry. */
3281 #define NON_GOT 256 /* local symbol plt, not stored. */
3283 /* Nonzero if we have seen a small data relocation referring to this
3285 unsigned char has_sda_refs : 1;
3287 /* Flag use of given relocations. */
3288 unsigned char has_addr16_ha : 1;
3289 unsigned char has_addr16_lo : 1;
3292 #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3294 /* PPC ELF linker hash table. */
3296 struct ppc_elf_link_hash_table
3298 struct elf_link_hash_table elf;
3300 /* Various options passed from the linker. */
3301 struct ppc_elf_params *params;
3303 /* Short-cuts to get to dynamic linker sections. */
3307 elf_linker_section_t sdata[2];
3309 asection *glink_eh_frame;
3311 asection *relpltlocal;
3313 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3316 /* Shortcut to __tls_get_addr. */
3317 struct elf_link_hash_entry *tls_get_addr;
3319 /* The bfd that forced an old-style PLT. */
3322 /* TLS local dynamic got entry handling. */
3324 bfd_signed_vma refcount;
3328 /* Offset of branch table to PltResolve function in glink. */
3329 bfd_vma glink_pltresolve;
3331 /* Size of reserved GOT entries. */
3332 unsigned int got_header_size;
3333 /* Non-zero if allocating the header left a gap. */
3334 unsigned int got_gap;
3336 /* The type of PLT we have chosen to use. */
3337 enum ppc_elf_plt_type plt_type;
3339 /* True if the target system is VxWorks. */
3340 unsigned int is_vxworks:1;
3342 /* Whether there exist local gnu indirect function resolvers,
3343 referenced by dynamic relocations. */
3344 unsigned int local_ifunc_resolver:1;
3345 unsigned int maybe_local_ifunc_resolver:1;
3347 /* Set if tls optimization is enabled. */
3348 unsigned int do_tls_opt:1;
3350 /* The size of PLT entries. */
3352 /* The distance between adjacent PLT slots. */
3354 /* The size of the first PLT entry. */
3355 int plt_initial_entry_size;
3357 /* Small local sym cache. */
3358 struct sym_cache sym_cache;
3361 /* Rename some of the generic section flags to better document how they
3362 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3364 /* Nonzero if this section has TLS related relocations. */
3365 #define has_tls_reloc sec_flg0
3367 /* Nonzero if this section has a call to __tls_get_addr. */
3368 #define has_tls_get_addr_call sec_flg1
3370 /* Get the PPC ELF linker hash table from a link_info structure. */
3372 #define ppc_elf_hash_table(p) \
3373 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3374 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
3376 /* Create an entry in a PPC ELF linker hash table. */
3378 static struct bfd_hash_entry *
3379 ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3380 struct bfd_hash_table *table,
3383 /* Allocate the structure if it has not already been allocated by a
3387 entry = bfd_hash_allocate (table,
3388 sizeof (struct ppc_elf_link_hash_entry));
3393 /* Call the allocation method of the superclass. */
3394 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3397 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3398 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3399 ppc_elf_hash_entry (entry)->tls_mask = 0;
3400 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
3406 /* Create a PPC ELF linker hash table. */
3408 static struct bfd_link_hash_table *
3409 ppc_elf_link_hash_table_create (bfd *abfd)
3411 struct ppc_elf_link_hash_table *ret;
3412 static struct ppc_elf_params default_params
3413 = { PLT_OLD, 0, 0, 1, 0, 0, 12, 0, 0, 0 };
3415 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3419 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3420 ppc_elf_link_hash_newfunc,
3421 sizeof (struct ppc_elf_link_hash_entry),
3428 ret->elf.init_plt_refcount.refcount = 0;
3429 ret->elf.init_plt_refcount.glist = NULL;
3430 ret->elf.init_plt_offset.offset = 0;
3431 ret->elf.init_plt_offset.glist = NULL;
3433 ret->params = &default_params;
3435 ret->sdata[0].name = ".sdata";
3436 ret->sdata[0].sym_name = "_SDA_BASE_";
3437 ret->sdata[0].bss_name = ".sbss";
3439 ret->sdata[1].name = ".sdata2";
3440 ret->sdata[1].sym_name = "_SDA2_BASE_";
3441 ret->sdata[1].bss_name = ".sbss2";
3443 ret->plt_entry_size = 12;
3444 ret->plt_slot_size = 8;
3445 ret->plt_initial_entry_size = 72;
3447 return &ret->elf.root;
3450 /* Hook linker params into hash table. */
3453 ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
3455 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3458 htab->params = params;
3459 params->pagesize_p2 = bfd_log2 (params->pagesize);
3462 /* Create .got and the related sections. */
3465 ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3467 struct ppc_elf_link_hash_table *htab;
3469 if (!_bfd_elf_create_got_section (abfd, info))
3472 htab = ppc_elf_hash_table (info);
3473 if (!htab->is_vxworks)
3475 /* The powerpc .got has a blrl instruction in it. Mark it
3477 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3478 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3479 if (!bfd_set_section_flags (abfd, htab->elf.sgot, flags))
3486 /* Create a special linker section, used for R_PPC_EMB_SDAI16 and
3487 R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata
3488 and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */
3491 ppc_elf_create_linker_section (bfd *abfd,
3492 struct bfd_link_info *info,
3494 elf_linker_section_t *lsect)
3498 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3499 | SEC_LINKER_CREATED);
3501 s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
3506 /* Define the sym on the first section of this name. */
3507 s = bfd_get_section_by_name (abfd, lsect->name);
3509 lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
3510 if (lsect->sym == NULL)
3512 lsect->sym->root.u.def.value = 0x8000;
3517 ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3519 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3524 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3525 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3526 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3528 p2align = htab->params->ppc476_workaround ? 6 : 4;
3529 if (p2align < htab->params->plt_stub_align)
3530 p2align = htab->params->plt_stub_align;
3532 || !bfd_set_section_alignment (abfd, s, p2align))
3535 if (!info->no_ld_generated_unwind_info)
3537 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3538 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3539 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3540 htab->glink_eh_frame = s;
3542 || !bfd_set_section_alignment (abfd, s, 2))
3546 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3547 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
3550 || !bfd_set_section_alignment (abfd, s, 4))
3553 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3554 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3555 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
3556 htab->elf.irelplt = s;
3558 || ! bfd_set_section_alignment (abfd, s, 2))
3561 /* Local plt entries. */
3562 flags = (SEC_ALLOC | SEC_LOAD
3563 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3564 htab->pltlocal = bfd_make_section_anyway_with_flags (abfd, ".branch_lt",
3566 if (htab->pltlocal == NULL
3567 || ! bfd_set_section_alignment (abfd, htab->pltlocal, 2))
3570 if (bfd_link_pic (info))
3572 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3573 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3575 = bfd_make_section_anyway_with_flags (abfd, ".rela.branch_lt", flags);
3576 if (htab->relpltlocal == NULL
3577 || ! bfd_set_section_alignment (abfd, htab->relpltlocal, 2))
3581 if (!ppc_elf_create_linker_section (abfd, info, 0,
3585 if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3592 /* We have to create .dynsbss and .rela.sbss here so that they get mapped
3593 to output sections (just like _bfd_elf_create_dynamic_sections has
3594 to create .dynbss and .rela.bss). */
3597 ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3599 struct ppc_elf_link_hash_table *htab;
3603 htab = ppc_elf_hash_table (info);
3605 if (htab->elf.sgot == NULL
3606 && !ppc_elf_create_got (abfd, info))
3609 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3612 if (htab->glink == NULL
3613 && !ppc_elf_create_glink (abfd, info))
3616 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3617 SEC_ALLOC | SEC_LINKER_CREATED);
3622 if (! bfd_link_pic (info))
3624 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3625 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3626 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3629 || ! bfd_set_section_alignment (abfd, s, 2))
3633 if (htab->is_vxworks
3634 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3638 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
3639 if (htab->plt_type == PLT_VXWORKS)
3640 /* The VxWorks PLT is a loaded section with contents. */
3641 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
3642 return bfd_set_section_flags (abfd, s, flags);
3645 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3648 ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
3649 struct elf_link_hash_entry *dir,
3650 struct elf_link_hash_entry *ind)
3652 struct ppc_elf_link_hash_entry *edir, *eind;
3654 edir = (struct ppc_elf_link_hash_entry *) dir;
3655 eind = (struct ppc_elf_link_hash_entry *) ind;
3657 edir->tls_mask |= eind->tls_mask;
3658 edir->has_sda_refs |= eind->has_sda_refs;
3660 if (edir->elf.versioned != versioned_hidden)
3661 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
3662 edir->elf.ref_regular |= eind->elf.ref_regular;
3663 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3664 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3665 edir->elf.needs_plt |= eind->elf.needs_plt;
3666 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3668 /* If we were called to copy over info for a weak sym, that's all. */
3669 if (eind->elf.root.type != bfd_link_hash_indirect)
3672 if (eind->dyn_relocs != NULL)
3674 if (edir->dyn_relocs != NULL)
3676 struct elf_dyn_relocs **pp;
3677 struct elf_dyn_relocs *p;
3679 /* Add reloc counts against the indirect sym to the direct sym
3680 list. Merge any entries against the same section. */
3681 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3683 struct elf_dyn_relocs *q;
3685 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3686 if (q->sec == p->sec)
3688 q->pc_count += p->pc_count;
3689 q->count += p->count;
3696 *pp = edir->dyn_relocs;
3699 edir->dyn_relocs = eind->dyn_relocs;
3700 eind->dyn_relocs = NULL;
3703 /* Copy over the GOT refcount entries that we may have already seen to
3704 the symbol which just became indirect. */
3705 edir->elf.got.refcount += eind->elf.got.refcount;
3706 eind->elf.got.refcount = 0;
3708 /* And plt entries. */
3709 if (eind->elf.plt.plist != NULL)
3711 if (edir->elf.plt.plist != NULL)
3713 struct plt_entry **entp;
3714 struct plt_entry *ent;
3716 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3718 struct plt_entry *dent;
3720 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3721 if (dent->sec == ent->sec && dent->addend == ent->addend)
3723 dent->plt.refcount += ent->plt.refcount;
3730 *entp = edir->elf.plt.plist;
3733 edir->elf.plt.plist = eind->elf.plt.plist;
3734 eind->elf.plt.plist = NULL;
3737 if (eind->elf.dynindx != -1)
3739 if (edir->elf.dynindx != -1)
3740 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3741 edir->elf.dynstr_index);
3742 edir->elf.dynindx = eind->elf.dynindx;
3743 edir->elf.dynstr_index = eind->elf.dynstr_index;
3744 eind->elf.dynindx = -1;
3745 eind->elf.dynstr_index = 0;
3749 /* Hook called by the linker routine which adds symbols from an object
3750 file. We use it to put .comm items in .sbss, and not .bss. */
3753 ppc_elf_add_symbol_hook (bfd *abfd,
3754 struct bfd_link_info *info,
3755 Elf_Internal_Sym *sym,
3756 const char **namep ATTRIBUTE_UNUSED,
3757 flagword *flagsp ATTRIBUTE_UNUSED,
3761 if (sym->st_shndx == SHN_COMMON
3762 && !bfd_link_relocatable (info)
3763 && is_ppc_elf (info->output_bfd)
3764 && sym->st_size <= elf_gp_size (abfd))
3766 /* Common symbols less than or equal to -G nn bytes are automatically
3768 struct ppc_elf_link_hash_table *htab;
3770 htab = ppc_elf_hash_table (info);
3771 if (htab->sbss == NULL)
3773 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3775 if (!htab->elf.dynobj)
3776 htab->elf.dynobj = abfd;
3778 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3781 if (htab->sbss == NULL)
3786 *valp = sym->st_size;
3789 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
3790 && (abfd->flags & DYNAMIC) == 0
3791 && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
3792 elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
3797 /* Find a linker generated pointer with a given addend and type. */
3799 static elf_linker_section_pointers_t *
3800 elf_find_pointer_linker_section
3801 (elf_linker_section_pointers_t *linker_pointers,
3803 elf_linker_section_t *lsect)
3805 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3806 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3807 return linker_pointers;
3812 /* Allocate a pointer to live in a linker created section. */
3815 elf_allocate_pointer_linker_section (bfd *abfd,
3816 elf_linker_section_t *lsect,
3817 struct elf_link_hash_entry *h,
3818 const Elf_Internal_Rela *rel)
3820 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3821 elf_linker_section_pointers_t *linker_section_ptr;
3822 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3825 BFD_ASSERT (lsect != NULL);
3827 /* Is this a global symbol? */
3830 struct ppc_elf_link_hash_entry *eh;
3832 /* Has this symbol already been allocated? If so, our work is done. */
3833 eh = (struct ppc_elf_link_hash_entry *) h;
3834 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3839 ptr_linker_section_ptr = &eh->linker_section_pointer;
3843 BFD_ASSERT (is_ppc_elf (abfd));
3845 /* Allocation of a pointer to a local symbol. */
3846 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3848 /* Allocate a table to hold the local symbols if first time. */
3851 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
3854 amt *= sizeof (elf_linker_section_pointers_t *);
3855 ptr = bfd_zalloc (abfd, amt);
3860 elf_local_ptr_offsets (abfd) = ptr;
3863 /* Has this symbol already been allocated? If so, our work is done. */
3864 if (elf_find_pointer_linker_section (ptr[r_symndx],
3869 ptr_linker_section_ptr = &ptr[r_symndx];
3872 /* Allocate space for a pointer in the linker section, and allocate
3873 a new pointer record from internal memory. */
3874 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3875 amt = sizeof (elf_linker_section_pointers_t);
3876 linker_section_ptr = bfd_alloc (abfd, amt);
3878 if (!linker_section_ptr)
3881 linker_section_ptr->next = *ptr_linker_section_ptr;
3882 linker_section_ptr->addend = rel->r_addend;
3883 linker_section_ptr->lsect = lsect;
3884 *ptr_linker_section_ptr = linker_section_ptr;
3886 if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
3888 linker_section_ptr->offset = lsect->section->size;
3889 lsect->section->size += 4;
3893 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3894 lsect->name, (long) linker_section_ptr->offset,
3895 (long) lsect->section->size);
3901 static struct plt_entry **
3902 update_local_sym_info (bfd *abfd,
3903 Elf_Internal_Shdr *symtab_hdr,
3904 unsigned long r_symndx,
3907 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
3908 struct plt_entry **local_plt;
3909 unsigned char *local_got_tls_masks;
3911 if (local_got_refcounts == NULL)
3913 bfd_size_type size = symtab_hdr->sh_info;
3915 size *= (sizeof (*local_got_refcounts)
3916 + sizeof (*local_plt)
3917 + sizeof (*local_got_tls_masks));
3918 local_got_refcounts = bfd_zalloc (abfd, size);
3919 if (local_got_refcounts == NULL)
3921 elf_local_got_refcounts (abfd) = local_got_refcounts;
3924 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3925 local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info);
3926 local_got_tls_masks[r_symndx] |= tls_type & 0xff;
3927 if ((tls_type & NON_GOT) == 0)
3928 local_got_refcounts[r_symndx] += 1;
3929 return local_plt + r_symndx;
3933 update_plt_info (bfd *abfd, struct plt_entry **plist,
3934 asection *sec, bfd_vma addend)
3936 struct plt_entry *ent;
3940 for (ent = *plist; ent != NULL; ent = ent->next)
3941 if (ent->sec == sec && ent->addend == addend)
3945 bfd_size_type amt = sizeof (*ent);
3946 ent = bfd_alloc (abfd, amt);
3951 ent->addend = addend;
3952 ent->plt.refcount = 0;
3955 ent->plt.refcount += 1;
3959 static struct plt_entry *
3960 find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
3962 struct plt_entry *ent;
3966 for (ent = *plist; ent != NULL; ent = ent->next)
3967 if (ent->sec == sec && ent->addend == addend)
3973 is_branch_reloc (enum elf_ppc_reloc_type r_type)
3975 return (r_type == R_PPC_PLTREL24
3976 || r_type == R_PPC_LOCAL24PC
3977 || r_type == R_PPC_REL24
3978 || r_type == R_PPC_REL14
3979 || r_type == R_PPC_REL14_BRTAKEN
3980 || r_type == R_PPC_REL14_BRNTAKEN
3981 || r_type == R_PPC_ADDR24
3982 || r_type == R_PPC_ADDR14
3983 || r_type == R_PPC_ADDR14_BRTAKEN
3984 || r_type == R_PPC_ADDR14_BRNTAKEN
3985 || r_type == R_PPC_VLE_REL24);
3988 /* Relocs on inline plt call sequence insns prior to the call. */
3991 is_plt_seq_reloc (enum elf_ppc_reloc_type r_type)
3993 return (r_type == R_PPC_PLT16_HA
3994 || r_type == R_PPC_PLT16_HI
3995 || r_type == R_PPC_PLT16_LO
3996 || r_type == R_PPC_PLTSEQ);
4000 bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
4003 /* xgettext:c-format */
4004 (_("%pB: relocation %s cannot be used when making a shared object"),
4006 ppc_elf_howto_table[r_type]->name);
4007 bfd_set_error (bfd_error_bad_value);
4010 /* Look through the relocs for a section during the first phase, and
4011 allocate space in the global offset table or procedure linkage
4015 ppc_elf_check_relocs (bfd *abfd,
4016 struct bfd_link_info *info,
4018 const Elf_Internal_Rela *relocs)
4020 struct ppc_elf_link_hash_table *htab;
4021 Elf_Internal_Shdr *symtab_hdr;
4022 struct elf_link_hash_entry **sym_hashes;
4023 const Elf_Internal_Rela *rel;
4024 const Elf_Internal_Rela *rel_end;
4025 asection *got2, *sreloc;
4026 struct elf_link_hash_entry *tga;
4028 if (bfd_link_relocatable (info))
4031 /* Don't do anything special with non-loaded, non-alloced sections.
4032 In particular, any relocs in such sections should not affect GOT
4033 and PLT reference counting (ie. we don't allow them to create GOT
4034 or PLT entries), there's no possibility or desire to optimize TLS
4035 relocs, and there's not much point in propagating relocs to shared
4036 libs that the dynamic linker won't relocate. */
4037 if ((sec->flags & SEC_ALLOC) == 0)
4041 _bfd_error_handler ("ppc_elf_check_relocs called for section %pA in %pB",
4045 BFD_ASSERT (is_ppc_elf (abfd));
4047 /* Initialize howto table if not already done. */
4048 if (!ppc_elf_howto_table[R_PPC_ADDR32])
4049 ppc_elf_howto_init ();
4051 htab = ppc_elf_hash_table (info);
4052 if (htab->glink == NULL)
4054 if (htab->elf.dynobj == NULL)
4055 htab->elf.dynobj = abfd;
4056 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
4059 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4060 FALSE, FALSE, TRUE);
4061 symtab_hdr = &elf_symtab_hdr (abfd);
4062 sym_hashes = elf_sym_hashes (abfd);
4063 got2 = bfd_get_section_by_name (abfd, ".got2");
4066 rel_end = relocs + sec->reloc_count;
4067 for (rel = relocs; rel < rel_end; rel++)
4069 unsigned long r_symndx;
4070 enum elf_ppc_reloc_type r_type;
4071 struct elf_link_hash_entry *h;
4073 struct plt_entry **ifunc;
4074 struct plt_entry **pltent;
4077 r_symndx = ELF32_R_SYM (rel->r_info);
4078 if (r_symndx < symtab_hdr->sh_info)
4082 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4083 while (h->root.type == bfd_link_hash_indirect
4084 || h->root.type == bfd_link_hash_warning)
4085 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4088 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
4089 This shows up in particular in an R_PPC_ADDR32 in the eabi
4092 && htab->elf.sgot == NULL
4093 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
4095 if (htab->elf.dynobj == NULL)
4096 htab->elf.dynobj = abfd;
4097 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4099 BFD_ASSERT (h == htab->elf.hgot);
4103 r_type = ELF32_R_TYPE (rel->r_info);
4105 if (h == NULL && !htab->is_vxworks)
4107 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4112 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
4114 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
4115 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
4116 NON_GOT | PLT_IFUNC);
4120 /* STT_GNU_IFUNC symbols must have a PLT entry;
4121 In a non-pie executable even when there are
4123 if (!bfd_link_pic (info)
4124 || is_branch_reloc (r_type)
4125 || r_type == R_PPC_PLT16_LO
4126 || r_type == R_PPC_PLT16_HI
4127 || r_type == R_PPC_PLT16_HA)
4130 if (r_type == R_PPC_PLTREL24)
4131 ppc_elf_tdata (abfd)->makes_plt_call = 1;
4132 if (bfd_link_pic (info)
4133 && (r_type == R_PPC_PLTREL24
4134 || r_type == R_PPC_PLT16_LO
4135 || r_type == R_PPC_PLT16_HI
4136 || r_type == R_PPC_PLT16_HA))
4137 addend = rel->r_addend;
4138 if (!update_plt_info (abfd, ifunc, got2, addend))
4144 if (!htab->is_vxworks
4145 && is_branch_reloc (r_type)
4150 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
4151 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
4152 /* We have a new-style __tls_get_addr call with a marker
4156 /* Mark this section as having an old-style call. */
4157 sec->has_tls_get_addr_call = 1;
4164 /* These special tls relocs tie a call to __tls_get_addr with
4165 its parameter symbol. */
4167 ppc_elf_hash_entry (h)->tls_mask |= TLS_TLS | TLS_MARK;
4169 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4170 NON_GOT | TLS_TLS | TLS_MARK))
4177 case R_PPC_GOT_TLSLD16:
4178 case R_PPC_GOT_TLSLD16_LO:
4179 case R_PPC_GOT_TLSLD16_HI:
4180 case R_PPC_GOT_TLSLD16_HA:
4181 tls_type = TLS_TLS | TLS_LD;
4184 case R_PPC_GOT_TLSGD16:
4185 case R_PPC_GOT_TLSGD16_LO:
4186 case R_PPC_GOT_TLSGD16_HI:
4187 case R_PPC_GOT_TLSGD16_HA:
4188 tls_type = TLS_TLS | TLS_GD;
4191 case R_PPC_GOT_TPREL16:
4192 case R_PPC_GOT_TPREL16_LO:
4193 case R_PPC_GOT_TPREL16_HI:
4194 case R_PPC_GOT_TPREL16_HA:
4195 if (bfd_link_dll (info))
4196 info->flags |= DF_STATIC_TLS;
4197 tls_type = TLS_TLS | TLS_TPREL;
4200 case R_PPC_GOT_DTPREL16:
4201 case R_PPC_GOT_DTPREL16_LO:
4202 case R_PPC_GOT_DTPREL16_HI:
4203 case R_PPC_GOT_DTPREL16_HA:
4204 tls_type = TLS_TLS | TLS_DTPREL;
4206 sec->has_tls_reloc = 1;
4209 /* GOT16 relocations */
4211 case R_PPC_GOT16_LO:
4212 case R_PPC_GOT16_HI:
4213 case R_PPC_GOT16_HA:
4214 /* This symbol requires a global offset table entry. */
4215 if (htab->elf.sgot == NULL)
4217 if (htab->elf.dynobj == NULL)
4218 htab->elf.dynobj = abfd;
4219 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4224 h->got.refcount += 1;
4225 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4228 /* This is a global offset table entry for a local symbol. */
4229 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4232 /* We may also need a plt entry if the symbol turns out to be
4234 if (h != NULL && !bfd_link_pic (info))
4236 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4241 /* Indirect .sdata relocation. */
4242 case R_PPC_EMB_SDAI16:
4243 if (bfd_link_pic (info))
4245 bad_shared_reloc (abfd, r_type);
4248 htab->sdata[0].sym->ref_regular = 1;
4249 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
4254 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4255 h->non_got_ref = TRUE;
4259 /* Indirect .sdata2 relocation. */
4260 case R_PPC_EMB_SDA2I16:
4261 if (bfd_link_pic (info))
4263 bad_shared_reloc (abfd, r_type);
4266 htab->sdata[1].sym->ref_regular = 1;
4267 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
4272 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4273 h->non_got_ref = TRUE;
4277 case R_PPC_SDAREL16:
4278 htab->sdata[0].sym->ref_regular = 1;
4281 case R_PPC_VLE_SDAREL_LO16A:
4282 case R_PPC_VLE_SDAREL_LO16D:
4283 case R_PPC_VLE_SDAREL_HI16A:
4284 case R_PPC_VLE_SDAREL_HI16D:
4285 case R_PPC_VLE_SDAREL_HA16A:
4286 case R_PPC_VLE_SDAREL_HA16D:
4289 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4290 h->non_got_ref = TRUE;
4294 case R_PPC_VLE_REL8:
4295 case R_PPC_VLE_REL15:
4296 case R_PPC_VLE_REL24:
4297 case R_PPC_VLE_LO16A:
4298 case R_PPC_VLE_LO16D:
4299 case R_PPC_VLE_HI16A:
4300 case R_PPC_VLE_HI16D:
4301 case R_PPC_VLE_HA16A:
4302 case R_PPC_VLE_HA16D:
4303 case R_PPC_VLE_ADDR20:
4306 case R_PPC_EMB_SDA2REL:
4307 if (bfd_link_pic (info))
4309 bad_shared_reloc (abfd, r_type);
4312 htab->sdata[1].sym->ref_regular = 1;
4315 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4316 h->non_got_ref = TRUE;
4320 case R_PPC_VLE_SDA21_LO:
4321 case R_PPC_VLE_SDA21:
4322 case R_PPC_EMB_SDA21:
4323 case R_PPC_EMB_RELSDA:
4324 if (bfd_link_pic (info))
4326 bad_shared_reloc (abfd, r_type);
4331 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4332 h->non_got_ref = TRUE;
4336 case R_PPC_EMB_NADDR32:
4337 case R_PPC_EMB_NADDR16:
4338 case R_PPC_EMB_NADDR16_LO:
4339 case R_PPC_EMB_NADDR16_HI:
4340 case R_PPC_EMB_NADDR16_HA:
4341 if (bfd_link_pic (info))
4343 bad_shared_reloc (abfd, r_type);
4347 h->non_got_ref = TRUE;
4350 case R_PPC_PLTREL24:
4353 ppc_elf_tdata (abfd)->makes_plt_call = 1;
4358 case R_PPC_PLTREL32:
4359 case R_PPC_PLT16_LO:
4360 case R_PPC_PLT16_HI:
4361 case R_PPC_PLT16_HA:
4363 fprintf (stderr, "Reloc requires a PLT entry\n");
4365 /* This symbol requires a procedure linkage table entry. */
4368 pltent = update_local_sym_info (abfd, symtab_hdr, r_symndx,
4369 NON_GOT | PLT_KEEP);
4375 if (r_type != R_PPC_PLTREL24)
4376 ppc_elf_hash_entry (h)->tls_mask |= PLT_KEEP;
4378 pltent = &h->plt.plist;
4381 if (bfd_link_pic (info)
4382 && (r_type == R_PPC_PLTREL24
4383 || r_type == R_PPC_PLT16_LO
4384 || r_type == R_PPC_PLT16_HI
4385 || r_type == R_PPC_PLT16_HA))
4386 addend = rel->r_addend;
4387 if (!update_plt_info (abfd, pltent, got2, addend))
4391 /* The following relocations don't need to propagate the
4392 relocation if linking a shared object since they are
4393 section relative. */
4395 case R_PPC_SECTOFF_LO:
4396 case R_PPC_SECTOFF_HI:
4397 case R_PPC_SECTOFF_HA:
4398 case R_PPC_DTPREL16:
4399 case R_PPC_DTPREL16_LO:
4400 case R_PPC_DTPREL16_HI:
4401 case R_PPC_DTPREL16_HA:
4406 case R_PPC_REL16_LO:
4407 case R_PPC_REL16_HI:
4408 case R_PPC_REL16_HA:
4409 case R_PPC_REL16DX_HA:
4410 ppc_elf_tdata (abfd)->has_rel16 = 1;
4413 /* These are just markers. */
4415 case R_PPC_EMB_MRKREF:
4419 case R_PPC_RELAX_PLT:
4420 case R_PPC_RELAX_PLTREL24:
4424 /* These should only appear in dynamic objects. */
4426 case R_PPC_GLOB_DAT:
4427 case R_PPC_JMP_SLOT:
4428 case R_PPC_RELATIVE:
4429 case R_PPC_IRELATIVE:
4432 /* These aren't handled yet. We'll report an error later. */
4434 case R_PPC_EMB_RELSEC16:
4435 case R_PPC_EMB_RELST_LO:
4436 case R_PPC_EMB_RELST_HI:
4437 case R_PPC_EMB_RELST_HA:
4438 case R_PPC_EMB_BIT_FLD:
4441 /* This refers only to functions defined in the shared library. */
4442 case R_PPC_LOCAL24PC:
4443 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
4445 htab->plt_type = PLT_OLD;
4446 htab->old_bfd = abfd;
4448 if (h != NULL && h->type == STT_GNU_IFUNC)
4451 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4456 /* This relocation describes the C++ object vtable hierarchy.
4457 Reconstruct it for later use during GC. */
4458 case R_PPC_GNU_VTINHERIT:
4459 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4463 /* This relocation describes which C++ vtable entries are actually
4464 used. Record for later use during GC. */
4465 case R_PPC_GNU_VTENTRY:
4466 BFD_ASSERT (h != NULL);
4468 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4472 /* We shouldn't really be seeing TPREL32. */
4475 case R_PPC_TPREL16_LO:
4476 case R_PPC_TPREL16_HI:
4477 case R_PPC_TPREL16_HA:
4478 if (bfd_link_dll (info))
4479 info->flags |= DF_STATIC_TLS;
4483 case R_PPC_DTPMOD32:
4484 case R_PPC_DTPREL32:
4490 && (sec->flags & SEC_CODE) != 0
4491 && bfd_link_pic (info)
4492 && htab->plt_type == PLT_UNSET)
4494 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4495 the start of a function, which assembles to a REL32
4496 reference to .got2. If we detect one of these, then
4497 force the old PLT layout because the linker cannot
4498 reliably deduce the GOT pointer value needed for
4501 Elf_Internal_Sym *isym;
4503 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4508 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4511 htab->plt_type = PLT_OLD;
4512 htab->old_bfd = abfd;
4515 if (h == NULL || h == htab->elf.hgot)
4521 case R_PPC_ADDR16_LO:
4522 case R_PPC_ADDR16_HI:
4523 case R_PPC_ADDR16_HA:
4526 if (h != NULL && !bfd_link_pic (info))
4528 /* We may need a plt entry if the symbol turns out to be
4529 a function defined in a dynamic object. */
4530 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4533 /* We may need a copy reloc too. */
4535 h->pointer_equality_needed = 1;
4536 if (r_type == R_PPC_ADDR16_HA)
4537 ppc_elf_hash_entry (h)->has_addr16_ha = 1;
4538 if (r_type == R_PPC_ADDR16_LO)
4539 ppc_elf_hash_entry (h)->has_addr16_lo = 1;
4545 case R_PPC_REL14_BRTAKEN:
4546 case R_PPC_REL14_BRNTAKEN:
4549 if (h == htab->elf.hgot)
4551 if (htab->plt_type == PLT_UNSET)
4553 htab->plt_type = PLT_OLD;
4554 htab->old_bfd = abfd;
4562 case R_PPC_ADDR14_BRTAKEN:
4563 case R_PPC_ADDR14_BRNTAKEN:
4564 if (h != NULL && !bfd_link_pic (info))
4566 /* We may need a plt entry if the symbol turns out to be
4567 a function defined in a dynamic object. */
4569 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4575 /* If we are creating a shared library, and this is a reloc
4576 against a global symbol, or a non PC relative reloc
4577 against a local symbol, then we need to copy the reloc
4578 into the shared library. However, if we are linking with
4579 -Bsymbolic, we do not need to copy a reloc against a
4580 global symbol which is defined in an object we are
4581 including in the link (i.e., DEF_REGULAR is set). At
4582 this point we have not seen all the input files, so it is
4583 possible that DEF_REGULAR is not set now but will be set
4584 later (it is never cleared). In case of a weak definition,
4585 DEF_REGULAR may be cleared later by a strong definition in
4586 a shared library. We account for that possibility below by
4587 storing information in the dyn_relocs field of the hash
4588 table entry. A similar situation occurs when creating
4589 shared libraries and symbol visibility changes render the
4592 If on the other hand, we are creating an executable, we
4593 may need to keep relocations for symbols satisfied by a
4594 dynamic library if we manage to avoid copy relocs for the
4596 if ((bfd_link_pic (info)
4597 && (must_be_dyn_reloc (info, r_type)
4599 && (!SYMBOLIC_BIND (info, h)
4600 || h->root.type == bfd_link_hash_defweak
4601 || !h->def_regular))))
4602 || (ELIMINATE_COPY_RELOCS
4603 && !bfd_link_pic (info)
4605 && (h->root.type == bfd_link_hash_defweak
4606 || !h->def_regular)))
4610 "ppc_elf_check_relocs needs to "
4611 "create relocation for %s\n",
4612 (h && h->root.root.string
4613 ? h->root.root.string : "<unknown>"));
4617 if (htab->elf.dynobj == NULL)
4618 htab->elf.dynobj = abfd;
4620 sreloc = _bfd_elf_make_dynamic_reloc_section
4621 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4627 /* If this is a global symbol, we count the number of
4628 relocations we need for this symbol. */
4631 struct elf_dyn_relocs *p;
4632 struct elf_dyn_relocs **rel_head;
4634 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
4636 if (p == NULL || p->sec != sec)
4638 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4641 p->next = *rel_head;
4648 if (!must_be_dyn_reloc (info, r_type))
4653 /* Track dynamic relocs needed for local syms too.
4654 We really need local syms available to do this
4656 struct ppc_dyn_relocs *p;
4657 struct ppc_dyn_relocs **rel_head;
4658 bfd_boolean is_ifunc;
4661 Elf_Internal_Sym *isym;
4663 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4668 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4672 vpp = &elf_section_data (s)->local_dynrel;
4673 rel_head = (struct ppc_dyn_relocs **) vpp;
4674 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
4676 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
4678 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
4680 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4683 p->next = *rel_head;
4686 p->ifunc = is_ifunc;
4700 /* Warn for conflicting Tag_GNU_Power_ABI_FP attributes between IBFD
4701 and OBFD, and merge non-conflicting ones. */
4703 _bfd_elf_ppc_merge_fp_attributes (bfd *ibfd, struct bfd_link_info *info)
4705 bfd *obfd = info->output_bfd;
4706 obj_attribute *in_attr, *in_attrs;
4707 obj_attribute *out_attr, *out_attrs;
4709 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4710 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4712 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4713 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
4715 if (in_attr->i != out_attr->i)
4717 int in_fp = in_attr->i & 3;
4718 int out_fp = out_attr->i & 3;
4722 else if (out_fp == 0)
4725 out_attr->i ^= in_fp;
4727 else if (out_fp != 2 && in_fp == 2)
4729 /* xgettext:c-format */
4730 (_("warning: %pB uses hard float, %pB uses soft float"), obfd, ibfd);
4731 else if (out_fp == 2 && in_fp != 2)
4733 /* xgettext:c-format */
4734 (_("warning: %pB uses hard float, %pB uses soft float"), ibfd, obfd);
4735 else if (out_fp == 1 && in_fp == 3)
4737 /* xgettext:c-format */
4738 (_("warning: %pB uses double-precision hard float, "
4739 "%pB uses single-precision hard float"), obfd, ibfd);
4740 else if (out_fp == 3 && in_fp == 1)
4742 /* xgettext:c-format */
4743 (_("warning: %pB uses double-precision hard float, "
4744 "%pB uses single-precision hard float"), ibfd, obfd);
4746 in_fp = in_attr->i & 0xc;
4747 out_fp = out_attr->i & 0xc;
4750 else if (out_fp == 0)
4753 out_attr->i ^= in_fp;
4755 else if (out_fp != 2 * 4 && in_fp == 2 * 4)
4757 /* xgettext:c-format */
4758 (_("warning: %pB uses 64-bit long double, "
4759 "%pB uses 128-bit long double"), ibfd, obfd);
4760 else if (in_fp != 2 * 4 && out_fp == 2 * 4)
4762 /* xgettext:c-format */
4763 (_("warning: %pB uses 64-bit long double, "
4764 "%pB uses 128-bit long double"), obfd, ibfd);
4765 else if (out_fp == 1 * 4 && in_fp == 3 * 4)
4767 /* xgettext:c-format */
4768 (_("warning: %pB uses IBM long double, "
4769 "%pB uses IEEE long double"), ibfd, obfd);
4770 else if (out_fp == 3 * 4 && in_fp == 1 * 4)
4772 /* xgettext:c-format */
4773 (_("warning: %pB uses IBM long double, "
4774 "%pB uses IEEE long double"), obfd, ibfd);
4778 /* Merge object attributes from IBFD into OBFD. Warn if
4779 there are conflicting attributes. */
4781 ppc_elf_merge_obj_attributes (bfd *ibfd, struct bfd_link_info *info)
4784 obj_attribute *in_attr, *in_attrs;
4785 obj_attribute *out_attr, *out_attrs;
4787 _bfd_elf_ppc_merge_fp_attributes (ibfd, info);
4789 obfd = info->output_bfd;
4790 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4791 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4793 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4794 merge non-conflicting ones. */
4795 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4796 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4797 if (in_attr->i != out_attr->i)
4799 int in_vec = in_attr->i & 3;
4800 int out_vec = out_attr->i & 3;
4804 else if (out_vec == 0)
4807 out_attr->i = in_vec;
4809 /* For now, allow generic to transition to AltiVec or SPE
4810 without a warning. If GCC marked files with their stack
4811 alignment and used don't-care markings for files which are
4812 not affected by the vector ABI, we could warn about this
4814 else if (in_vec == 1)
4816 else if (out_vec == 1)
4819 out_attr->i = in_vec;
4821 else if (out_vec < in_vec)
4823 /* xgettext:c-format */
4824 (_("warning: %pB uses AltiVec vector ABI, %pB uses SPE vector ABI"),
4826 else if (out_vec > in_vec)
4828 /* xgettext:c-format */
4829 (_("warning: %pB uses AltiVec vector ABI, %pB uses SPE vector ABI"),
4833 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4834 and merge non-conflicting ones. */
4835 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4836 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4837 if (in_attr->i != out_attr->i)
4839 int in_struct = in_attr->i & 3;
4840 int out_struct = out_attr->i & 3;
4842 if (in_struct == 0 || in_struct == 3)
4844 else if (out_struct == 0)
4847 out_attr->i = in_struct;
4849 else if (out_struct < in_struct)
4851 /* xgettext:c-format */
4852 (_("warning: %pB uses r3/r4 for small structure returns, "
4853 "%pB uses memory"), obfd, ibfd);
4854 else if (out_struct > in_struct)
4856 /* xgettext:c-format */
4857 (_("warning: %pB uses r3/r4 for small structure returns, "
4858 "%pB uses memory"), ibfd, obfd);
4861 /* Merge Tag_compatibility attributes and any common GNU ones. */
4862 _bfd_elf_merge_object_attributes (ibfd, info);
4867 /* Merge backend specific data from an object file to the output
4868 object file when linking. */
4871 ppc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4873 bfd *obfd = info->output_bfd;
4878 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
4881 /* Check if we have the same endianness. */
4882 if (! _bfd_generic_verify_endian_match (ibfd, info))
4885 if (!ppc_elf_merge_obj_attributes (ibfd, info))
4888 new_flags = elf_elfheader (ibfd)->e_flags;
4889 old_flags = elf_elfheader (obfd)->e_flags;
4890 if (!elf_flags_init (obfd))
4892 /* First call, no flags set. */
4893 elf_flags_init (obfd) = TRUE;
4894 elf_elfheader (obfd)->e_flags = new_flags;
4897 /* Compatible flags are ok. */
4898 else if (new_flags == old_flags)
4901 /* Incompatible flags. */
4904 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4905 to be linked with either. */
4907 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4908 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4912 (_("%pB: compiled with -mrelocatable and linked with "
4913 "modules compiled normally"), ibfd);
4915 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4916 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4920 (_("%pB: compiled normally and linked with "
4921 "modules compiled with -mrelocatable"), ibfd);
4924 /* The output is -mrelocatable-lib iff both the input files are. */
4925 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4926 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4928 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4929 but each input file is either -mrelocatable or -mrelocatable-lib. */
4930 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4931 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4932 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4933 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4935 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4936 any module uses it. */
4937 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4939 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4940 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4942 /* Warn about any other mismatches. */
4943 if (new_flags != old_flags)
4947 /* xgettext:c-format */
4948 (_("%pB: uses different e_flags (%#x) fields "
4949 "than previous modules (%#x)"),
4950 ibfd, new_flags, old_flags);
4955 bfd_set_error (bfd_error_bad_value);
4964 ppc_elf_vle_split16 (bfd *input_bfd,
4965 asection *input_section,
4966 unsigned long offset,
4969 split16_format_type split16_format,
4972 unsigned int insn, opcode, top5;
4974 insn = bfd_get_32 (input_bfd, loc);
4975 opcode = insn & 0xfc00f800;
4976 if (opcode == E_OR2I_INSN
4977 || opcode == E_AND2I_DOT_INSN
4978 || opcode == E_OR2IS_INSN
4979 || opcode == E_LIS_INSN
4980 || opcode == E_AND2IS_DOT_INSN)
4982 if (split16_format != split16a_type)
4985 split16_format = split16a_type;
4988 /* xgettext:c-format */
4989 (_("%pB(%pA+0x%lx): expected 16A style relocation on 0x%08x insn"),
4990 input_bfd, input_section, offset, opcode);
4993 else if (opcode == E_ADD2I_DOT_INSN
4994 || opcode == E_ADD2IS_INSN
4995 || opcode == E_CMP16I_INSN
4996 || opcode == E_MULL2I_INSN
4997 || opcode == E_CMPL16I_INSN
4998 || opcode == E_CMPH16I_INSN
4999 || opcode == E_CMPHL16I_INSN)
5001 if (split16_format != split16d_type)
5004 split16_format = split16d_type;
5007 /* xgettext:c-format */
5008 (_("%pB(%pA+0x%lx): expected 16D style relocation on 0x%08x insn"),
5009 input_bfd, input_section, offset, opcode);
5012 top5 = value & 0xf800;
5013 top5 = top5 << (split16_format == split16a_type ? 5 : 10);
5014 insn &= (split16_format == split16a_type ? ~0x1f07ff : ~0x3e007ff);
5016 insn |= value & 0x7ff;
5017 bfd_put_32 (input_bfd, insn, loc);
5021 ppc_elf_vle_split20 (bfd *output_bfd, bfd_byte *loc, bfd_vma value)
5025 insn = bfd_get_32 (output_bfd, loc);
5026 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
5027 /* Top 4 bits of value to 17..20. */
5028 insn |= (value & 0xf0000) >> 5;
5029 /* Next 5 bits of the value to 11..15. */
5030 insn |= (value & 0xf800) << 5;
5031 /* And the final 11 bits of the value to bits 21 to 31. */
5032 insn |= value & 0x7ff;
5033 bfd_put_32 (output_bfd, insn, loc);
5037 /* Choose which PLT scheme to use, and set .plt flags appropriately.
5038 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
5040 ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
5041 struct bfd_link_info *info)
5043 struct ppc_elf_link_hash_table *htab;
5046 htab = ppc_elf_hash_table (info);
5048 if (htab->plt_type == PLT_UNSET)
5050 struct elf_link_hash_entry *h;
5052 if (htab->params->plt_style == PLT_OLD)
5053 htab->plt_type = PLT_OLD;
5054 else if (bfd_link_pic (info)
5055 && htab->elf.dynamic_sections_created
5056 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
5057 FALSE, FALSE, TRUE)) != NULL
5058 && (h->type == STT_FUNC
5061 && !(SYMBOL_CALLS_LOCAL (info, h)
5062 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
5064 /* Profiling of shared libs (and pies) is not supported with
5065 secure plt, because ppc32 does profiling before a
5066 function prologue and a secure plt pic call stubs needs
5067 r30 to be set up. */
5068 htab->plt_type = PLT_OLD;
5073 enum ppc_elf_plt_type plt_type = htab->params->plt_style;
5075 /* Look through the reloc flags left by ppc_elf_check_relocs.
5076 Use the old style bss plt if a file makes plt calls
5077 without using the new relocs, and if ld isn't given
5078 --secure-plt and we never see REL16 relocs. */
5079 if (plt_type == PLT_UNSET)
5081 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
5082 if (is_ppc_elf (ibfd))
5084 if (ppc_elf_tdata (ibfd)->has_rel16)
5086 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
5089 htab->old_bfd = ibfd;
5093 htab->plt_type = plt_type;
5096 if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
5098 if (htab->old_bfd != NULL)
5099 _bfd_error_handler (_("bss-plt forced due to %pB"), htab->old_bfd);
5101 _bfd_error_handler (_("bss-plt forced by profiling"));
5104 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
5106 if (htab->plt_type == PLT_NEW)
5108 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
5109 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
5111 /* The new PLT is a loaded section. */
5112 if (htab->elf.splt != NULL
5113 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.splt, flags))
5116 /* The new GOT is not executable. */
5117 if (htab->elf.sgot != NULL
5118 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.sgot, flags))
5123 /* Stop an unused .glink section from affecting .text alignment. */
5124 if (htab->glink != NULL
5125 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
5128 return htab->plt_type == PLT_NEW;
5131 /* Return the section that should be marked against GC for a given
5135 ppc_elf_gc_mark_hook (asection *sec,
5136 struct bfd_link_info *info,
5137 Elf_Internal_Rela *rel,
5138 struct elf_link_hash_entry *h,
5139 Elf_Internal_Sym *sym)
5142 switch (ELF32_R_TYPE (rel->r_info))
5144 case R_PPC_GNU_VTINHERIT:
5145 case R_PPC_GNU_VTENTRY:
5149 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
5153 get_sym_h (struct elf_link_hash_entry **hp,
5154 Elf_Internal_Sym **symp,
5156 unsigned char **tls_maskp,
5157 Elf_Internal_Sym **locsymsp,
5158 unsigned long r_symndx,
5161 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5163 if (r_symndx >= symtab_hdr->sh_info)
5165 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5166 struct elf_link_hash_entry *h;
5168 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5169 while (h->root.type == bfd_link_hash_indirect
5170 || h->root.type == bfd_link_hash_warning)
5171 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5179 if (symsecp != NULL)
5181 asection *symsec = NULL;
5182 if (h->root.type == bfd_link_hash_defined
5183 || h->root.type == bfd_link_hash_defweak)
5184 symsec = h->root.u.def.section;
5188 if (tls_maskp != NULL)
5189 *tls_maskp = &ppc_elf_hash_entry (h)->tls_mask;
5193 Elf_Internal_Sym *sym;
5194 Elf_Internal_Sym *locsyms = *locsymsp;
5196 if (locsyms == NULL)
5198 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5199 if (locsyms == NULL)
5200 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5201 symtab_hdr->sh_info,
5202 0, NULL, NULL, NULL);
5203 if (locsyms == NULL)
5205 *locsymsp = locsyms;
5207 sym = locsyms + r_symndx;
5215 if (symsecp != NULL)
5216 *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx);
5218 if (tls_maskp != NULL)
5220 bfd_signed_vma *local_got;
5221 unsigned char *tls_mask;
5224 local_got = elf_local_got_refcounts (ibfd);
5225 if (local_got != NULL)
5227 struct plt_entry **local_plt = (struct plt_entry **)
5228 (local_got + symtab_hdr->sh_info);
5229 unsigned char *lgot_masks = (unsigned char *)
5230 (local_plt + symtab_hdr->sh_info);
5231 tls_mask = &lgot_masks[r_symndx];
5233 *tls_maskp = tls_mask;
5239 /* Set plt output section type, htab->tls_get_addr, and call the
5240 generic ELF tls_setup function. */
5243 ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
5245 struct ppc_elf_link_hash_table *htab;
5247 htab = ppc_elf_hash_table (info);
5248 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5249 FALSE, FALSE, TRUE);
5250 if (htab->plt_type != PLT_NEW)
5251 htab->params->no_tls_get_addr_opt = TRUE;
5253 if (!htab->params->no_tls_get_addr_opt)
5255 struct elf_link_hash_entry *opt, *tga;
5256 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5257 FALSE, FALSE, TRUE);
5259 && (opt->root.type == bfd_link_hash_defined
5260 || opt->root.type == bfd_link_hash_defweak))
5262 /* If glibc supports an optimized __tls_get_addr call stub,
5263 signalled by the presence of __tls_get_addr_opt, and we'll
5264 be calling __tls_get_addr via a plt call stub, then
5265 make __tls_get_addr point to __tls_get_addr_opt. */
5266 tga = htab->tls_get_addr;
5267 if (htab->elf.dynamic_sections_created
5269 && (tga->type == STT_FUNC
5271 && !(SYMBOL_CALLS_LOCAL (info, tga)
5272 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga)))
5274 struct plt_entry *ent;
5275 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5276 if (ent->plt.refcount > 0)
5280 tga->root.type = bfd_link_hash_indirect;
5281 tga->root.u.i.link = &opt->root;
5282 ppc_elf_copy_indirect_symbol (info, opt, tga);
5284 if (opt->dynindx != -1)
5286 /* Use __tls_get_addr_opt in dynamic relocations. */
5288 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5290 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5293 htab->tls_get_addr = opt;
5298 htab->params->no_tls_get_addr_opt = TRUE;
5300 if (htab->plt_type == PLT_NEW
5301 && htab->elf.splt != NULL
5302 && htab->elf.splt->output_section != NULL)
5304 elf_section_type (htab->elf.splt->output_section) = SHT_PROGBITS;
5305 elf_section_flags (htab->elf.splt->output_section) = SHF_ALLOC + SHF_WRITE;
5308 return _bfd_elf_tls_setup (obfd, info);
5311 /* Return TRUE iff REL is a branch reloc with a global symbol matching
5315 branch_reloc_hash_match (const bfd *ibfd,
5316 const Elf_Internal_Rela *rel,
5317 const struct elf_link_hash_entry *hash)
5319 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5320 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5321 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5323 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
5325 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5326 struct elf_link_hash_entry *h;
5328 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5329 while (h->root.type == bfd_link_hash_indirect
5330 || h->root.type == bfd_link_hash_warning)
5331 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5338 /* Run through all the TLS relocs looking for optimization
5342 ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5343 struct bfd_link_info *info)
5347 struct ppc_elf_link_hash_table *htab;
5350 if (!bfd_link_executable (info))
5353 htab = ppc_elf_hash_table (info);
5357 /* Make two passes through the relocs. First time check that tls
5358 relocs involved in setting up a tls_get_addr call are indeed
5359 followed by such a call. If they are not, don't do any tls
5360 optimization. On the second pass twiddle tls_mask flags to
5361 notify relocate_section that optimization can be done, and
5362 adjust got and plt refcounts. */
5363 for (pass = 0; pass < 2; ++pass)
5364 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
5366 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5367 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
5369 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5370 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5372 Elf_Internal_Rela *relstart, *rel, *relend;
5373 int expecting_tls_get_addr = 0;
5375 /* Read the relocations. */
5376 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5378 if (relstart == NULL)
5381 relend = relstart + sec->reloc_count;
5382 for (rel = relstart; rel < relend; rel++)
5384 enum elf_ppc_reloc_type r_type;
5385 unsigned long r_symndx;
5386 struct elf_link_hash_entry *h = NULL;
5387 unsigned char *tls_mask;
5388 unsigned char tls_set, tls_clear;
5389 bfd_boolean is_local;
5390 bfd_signed_vma *got_count;
5392 r_symndx = ELF32_R_SYM (rel->r_info);
5393 if (r_symndx >= symtab_hdr->sh_info)
5395 struct elf_link_hash_entry **sym_hashes;
5397 sym_hashes = elf_sym_hashes (ibfd);
5398 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5399 while (h->root.type == bfd_link_hash_indirect
5400 || h->root.type == bfd_link_hash_warning)
5401 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5409 r_type = ELF32_R_TYPE (rel->r_info);
5410 /* If this section has old-style __tls_get_addr calls
5411 without marker relocs, then check that each
5412 __tls_get_addr call reloc is preceded by a reloc
5413 that conceivably belongs to the __tls_get_addr arg
5414 setup insn. If we don't find matching arg setup
5415 relocs, don't do any tls optimization. */
5417 && sec->has_tls_get_addr_call
5419 && h == htab->tls_get_addr
5420 && !expecting_tls_get_addr
5421 && is_branch_reloc (r_type))
5423 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
5424 "TLS optimization disabled\n",
5425 ibfd, sec, rel->r_offset);
5426 if (elf_section_data (sec)->relocs != relstart)
5431 expecting_tls_get_addr = 0;
5434 case R_PPC_GOT_TLSLD16:
5435 case R_PPC_GOT_TLSLD16_LO:
5436 expecting_tls_get_addr = 1;
5439 case R_PPC_GOT_TLSLD16_HI:
5440 case R_PPC_GOT_TLSLD16_HA:
5441 /* These relocs should never be against a symbol
5442 defined in a shared lib. Leave them alone if
5443 that turns out to be the case. */
5452 case R_PPC_GOT_TLSGD16:
5453 case R_PPC_GOT_TLSGD16_LO:
5454 expecting_tls_get_addr = 1;
5457 case R_PPC_GOT_TLSGD16_HI:
5458 case R_PPC_GOT_TLSGD16_HA:
5464 tls_set = TLS_TLS | TLS_TPRELGD;
5468 case R_PPC_GOT_TPREL16:
5469 case R_PPC_GOT_TPREL16_LO:
5470 case R_PPC_GOT_TPREL16_HI:
5471 case R_PPC_GOT_TPREL16_HA:
5476 tls_clear = TLS_TPREL;
5484 if (rel + 1 < relend
5485 && is_plt_seq_reloc (ELF32_R_TYPE (rel[1].r_info)))
5488 && ELF32_R_TYPE (rel[1].r_info) != R_PPC_PLTSEQ)
5490 r_type = ELF32_R_TYPE (rel[1].r_info);
5491 r_symndx = ELF32_R_SYM (rel[1].r_info);
5492 if (r_symndx >= symtab_hdr->sh_info)
5494 struct elf_link_hash_entry **sym_hashes;
5496 sym_hashes = elf_sym_hashes (ibfd);
5497 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5498 while (h->root.type == bfd_link_hash_indirect
5499 || h->root.type == bfd_link_hash_warning)
5500 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5503 struct plt_entry *ent = NULL;
5506 if (bfd_link_pic (info))
5507 addend = rel->r_addend;
5508 ent = find_plt_ent (&h->plt.plist,
5511 && ent->plt.refcount > 0)
5512 ent->plt.refcount -= 1;
5518 expecting_tls_get_addr = 2;
5529 if (!expecting_tls_get_addr
5530 || !sec->has_tls_get_addr_call)
5533 if (rel + 1 < relend
5534 && branch_reloc_hash_match (ibfd, rel + 1,
5535 htab->tls_get_addr))
5538 /* Uh oh, we didn't find the expected call. We
5539 could just mark this symbol to exclude it
5540 from tls optimization but it's safer to skip
5541 the entire optimization. */
5542 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
5543 "TLS optimization disabled\n"),
5544 ibfd, sec, rel->r_offset);
5545 if (elf_section_data (sec)->relocs != relstart)
5552 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5553 got_count = &h->got.refcount;
5557 bfd_signed_vma *lgot_refs;
5558 struct plt_entry **local_plt;
5559 unsigned char *lgot_masks;
5561 lgot_refs = elf_local_got_refcounts (ibfd);
5562 if (lgot_refs == NULL)
5564 local_plt = (struct plt_entry **)
5565 (lgot_refs + symtab_hdr->sh_info);
5566 lgot_masks = (unsigned char *)
5567 (local_plt + symtab_hdr->sh_info);
5568 tls_mask = &lgot_masks[r_symndx];
5569 got_count = &lgot_refs[r_symndx];
5572 /* If we don't have old-style __tls_get_addr calls
5573 without TLSGD/TLSLD marker relocs, and we haven't
5574 found a new-style __tls_get_addr call with a
5575 marker for this symbol, then we either have a
5576 broken object file or an -mlongcall style
5577 indirect call to __tls_get_addr without a marker.
5578 Disable optimization in this case. */
5579 if ((tls_clear & (TLS_GD | TLS_LD)) != 0
5580 && !sec->has_tls_get_addr_call
5581 && ((*tls_mask & (TLS_TLS | TLS_MARK))
5582 != (TLS_TLS | TLS_MARK)))
5585 if (expecting_tls_get_addr)
5587 struct plt_entry *ent;
5590 if (bfd_link_pic (info)
5591 && (ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24
5592 || ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTCALL))
5593 addend = rel[1].r_addend;
5594 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5596 if (ent != NULL && ent->plt.refcount > 0)
5597 ent->plt.refcount -= 1;
5599 if (expecting_tls_get_addr == 2)
5605 /* We managed to get rid of a got entry. */
5610 *tls_mask |= tls_set;
5611 *tls_mask &= ~tls_clear;
5614 if (elf_section_data (sec)->relocs != relstart)
5618 htab->do_tls_opt = 1;
5622 /* Find dynamic relocs for H that apply to read-only sections. */
5625 readonly_dynrelocs (struct elf_link_hash_entry *h)
5627 struct elf_dyn_relocs *p;
5629 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5631 asection *s = p->sec->output_section;
5633 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5639 /* Return true if we have dynamic relocs against H or any of its weak
5640 aliases, that apply to read-only sections. Cannot be used after
5641 size_dynamic_sections. */
5644 alias_readonly_dynrelocs (struct elf_link_hash_entry *h)
5646 struct ppc_elf_link_hash_entry *eh = ppc_elf_hash_entry (h);
5649 if (readonly_dynrelocs (&eh->elf))
5651 eh = ppc_elf_hash_entry (eh->elf.u.alias);
5652 } while (eh != NULL && &eh->elf != h);
5657 /* Return whether H has pc-relative dynamic relocs. */
5660 pc_dynrelocs (struct elf_link_hash_entry *h)
5662 struct elf_dyn_relocs *p;
5664 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5665 if (p->pc_count != 0)
5670 /* Adjust a symbol defined by a dynamic object and referenced by a
5671 regular object. The current definition is in some section of the
5672 dynamic object, but we're not including those sections. We have to
5673 change the definition to something the rest of the link can
5677 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5678 struct elf_link_hash_entry *h)
5680 struct ppc_elf_link_hash_table *htab;
5684 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5685 h->root.root.string);
5688 /* Make sure we know what is going on here. */
5689 htab = ppc_elf_hash_table (info);
5690 BFD_ASSERT (htab->elf.dynobj != NULL
5692 || h->type == STT_GNU_IFUNC
5696 && !h->def_regular)));
5698 /* Deal with function syms. */
5699 if (h->type == STT_FUNC
5700 || h->type == STT_GNU_IFUNC
5703 bfd_boolean local = (SYMBOL_CALLS_LOCAL (info, h)
5704 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
5705 /* Discard dyn_relocs when non-pic if we've decided that a
5706 function symbol is local. */
5707 if (!bfd_link_pic (info) && local)
5708 ppc_elf_hash_entry (h)->dyn_relocs = NULL;
5710 /* Clear procedure linkage table information for any symbol that
5711 won't need a .plt entry. */
5712 struct plt_entry *ent;
5713 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5714 if (ent->plt.refcount > 0)
5717 || (h->type != STT_GNU_IFUNC
5719 && ((ppc_elf_hash_entry (h)->tls_mask & (TLS_TLS | PLT_KEEP))
5722 /* A PLT entry is not required/allowed when:
5724 1. We are not using ld.so; because then the PLT entry
5725 can't be set up, so we can't use one. In this case,
5726 ppc_elf_adjust_dynamic_symbol won't even be called.
5728 2. GC has rendered the entry unused.
5730 3. We know for certain that a call to this symbol
5731 will go to this object, or will remain undefined. */
5732 h->plt.plist = NULL;
5734 h->pointer_equality_needed = 0;
5738 /* Taking a function's address in a read/write section
5739 doesn't require us to define the function symbol in the
5740 executable on a plt call stub. A dynamic reloc can
5741 be used instead, giving better runtime performance.
5742 (Calls via that function pointer don't need to bounce
5743 through the plt call stub.) Similarly, use a dynamic
5744 reloc for a weak reference when possible, allowing the
5745 resolution of the symbol to be set at load time rather
5747 if ((h->pointer_equality_needed
5749 && !h->ref_regular_nonweak
5750 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
5751 && !htab->is_vxworks
5752 && !ppc_elf_hash_entry (h)->has_sda_refs
5753 && !readonly_dynrelocs (h))
5755 h->pointer_equality_needed = 0;
5756 /* If we haven't seen a branch reloc then we don't need
5759 h->plt.plist = NULL;
5761 else if (!bfd_link_pic (info))
5762 /* We are going to be defining the function symbol on the
5763 plt stub, so no dyn_relocs needed when non-pic. */
5764 ppc_elf_hash_entry (h)->dyn_relocs = NULL;
5766 h->protected_def = 0;
5767 /* Function symbols can't have copy relocs. */
5771 h->plt.plist = NULL;
5773 /* If this is a weak symbol, and there is a real definition, the
5774 processor independent code will have arranged for us to see the
5775 real definition first, and we can just use the same value. */
5776 if (h->is_weakalias)
5778 struct elf_link_hash_entry *def = weakdef (h);
5779 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
5780 h->root.u.def.section = def->root.u.def.section;
5781 h->root.u.def.value = def->root.u.def.value;
5782 if (def->root.u.def.section == htab->elf.sdynbss
5783 || def->root.u.def.section == htab->elf.sdynrelro
5784 || def->root.u.def.section == htab->dynsbss)
5785 ppc_elf_hash_entry (h)->dyn_relocs = NULL;
5789 /* This is a reference to a symbol defined by a dynamic object which
5790 is not a function. */
5792 /* If we are creating a shared library, we must presume that the
5793 only references to the symbol are via the global offset table.
5794 For such cases we need not do anything here; the relocations will
5795 be handled correctly by relocate_section. */
5796 if (bfd_link_pic (info))
5798 h->protected_def = 0;
5802 /* If there are no references to this symbol that do not use the
5803 GOT, we don't need to generate a copy reloc. */
5804 if (!h->non_got_ref)
5806 h->protected_def = 0;
5810 /* Protected variables do not work with .dynbss. The copy in
5811 .dynbss won't be used by the shared library with the protected
5812 definition for the variable. Editing to PIC, or text relocations
5813 are preferable to an incorrect program. */
5814 if (h->protected_def)
5816 if (ELIMINATE_COPY_RELOCS
5817 && ppc_elf_hash_entry (h)->has_addr16_ha
5818 && ppc_elf_hash_entry (h)->has_addr16_lo
5819 && htab->params->pic_fixup == 0
5820 && info->disable_target_specific_optimizations <= 1)
5821 htab->params->pic_fixup = 1;
5825 /* If -z nocopyreloc was given, we won't generate them either. */
5826 if (info->nocopyreloc)
5829 /* If we don't find any dynamic relocs in read-only sections, then
5830 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5831 We can't do this if there are any small data relocations. This
5832 doesn't work on VxWorks, where we can not have dynamic
5833 relocations (other than copy and jump slot relocations) in an
5835 if (ELIMINATE_COPY_RELOCS
5836 && !ppc_elf_hash_entry (h)->has_sda_refs
5837 && !htab->is_vxworks
5839 && !alias_readonly_dynrelocs (h))
5842 /* We must allocate the symbol in our .dynbss section, which will
5843 become part of the .bss section of the executable. There will be
5844 an entry for this symbol in the .dynsym section. The dynamic
5845 object will contain position independent code, so all references
5846 from the dynamic object to this symbol will go through the global
5847 offset table. The dynamic linker will use the .dynsym entry to
5848 determine the address it must put in the global offset table, so
5849 both the dynamic object and the regular object will refer to the
5850 same memory location for the variable.
5852 Of course, if the symbol is referenced using SDAREL relocs, we
5853 must instead allocate it in .sbss. */
5854 if (ppc_elf_hash_entry (h)->has_sda_refs)
5856 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
5857 s = htab->elf.sdynrelro;
5859 s = htab->elf.sdynbss;
5860 BFD_ASSERT (s != NULL);
5862 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
5866 /* We must generate a R_PPC_COPY reloc to tell the dynamic
5867 linker to copy the initial value out of the dynamic object
5868 and into the runtime process image. */
5869 if (ppc_elf_hash_entry (h)->has_sda_refs)
5870 srel = htab->relsbss;
5871 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
5872 srel = htab->elf.sreldynrelro;
5874 srel = htab->elf.srelbss;
5875 BFD_ASSERT (srel != NULL);
5876 srel->size += sizeof (Elf32_External_Rela);
5880 /* We no longer want dyn_relocs. */
5881 ppc_elf_hash_entry (h)->dyn_relocs = NULL;
5882 return _bfd_elf_adjust_dynamic_copy (info, h, s);
5885 /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5886 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5887 specifying the addend on the plt relocation. For -fpic code, the sym
5888 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5889 xxxxxxxx.got2.plt_pic32.<callee>. */
5892 add_stub_sym (struct plt_entry *ent,
5893 struct elf_link_hash_entry *h,
5894 struct bfd_link_info *info)
5896 struct elf_link_hash_entry *sh;
5897 size_t len1, len2, len3;
5900 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5902 if (bfd_link_pic (info))
5903 stub = ".plt_pic32.";
5905 stub = ".plt_call32.";
5907 len1 = strlen (h->root.root.string);
5908 len2 = strlen (stub);
5911 len3 = strlen (ent->sec->name);
5912 name = bfd_malloc (len1 + len2 + len3 + 9);
5915 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5917 memcpy (name + 8, ent->sec->name, len3);
5918 memcpy (name + 8 + len3, stub, len2);
5919 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
5920 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5923 if (sh->root.type == bfd_link_hash_new)
5925 sh->root.type = bfd_link_hash_defined;
5926 sh->root.u.def.section = htab->glink;
5927 sh->root.u.def.value = ent->glink_offset;
5928 sh->ref_regular = 1;
5929 sh->def_regular = 1;
5930 sh->ref_regular_nonweak = 1;
5931 sh->forced_local = 1;
5933 sh->root.linker_def = 1;
5938 /* Allocate NEED contiguous space in .got, and return the offset.
5939 Handles allocation of the got header when crossing 32k. */
5942 allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5945 unsigned int max_before_header;
5947 if (htab->plt_type == PLT_VXWORKS)
5949 where = htab->elf.sgot->size;
5950 htab->elf.sgot->size += need;
5954 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5955 if (need <= htab->got_gap)
5957 where = max_before_header - htab->got_gap;
5958 htab->got_gap -= need;
5962 if (htab->elf.sgot->size + need > max_before_header
5963 && htab->elf.sgot->size <= max_before_header)
5965 htab->got_gap = max_before_header - htab->elf.sgot->size;
5966 htab->elf.sgot->size = max_before_header + htab->got_header_size;
5968 where = htab->elf.sgot->size;
5969 htab->elf.sgot->size += need;
5975 /* Calculate size of GOT entries for symbol given its TLS_MASK.
5976 TLS_LD is excluded because those go in a special GOT slot. */
5978 static inline unsigned int
5979 got_entries_needed (int tls_mask)
5982 if ((tls_mask & TLS_TLS) == 0)
5987 if ((tls_mask & TLS_GD) != 0)
5989 if ((tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
5991 if ((tls_mask & TLS_DTPREL) != 0)
5997 /* Calculate size of relocs needed for symbol given its TLS_MASK and
5998 NEEDed GOT entries. KNOWN says a TPREL offset can be calculated at
6001 static inline unsigned int
6002 got_relocs_needed (int tls_mask, unsigned int need, bfd_boolean known)
6004 /* All the entries we allocated need relocs.
6005 Except IE in executable with a local symbol. We could also omit
6006 the DTPREL reloc on the second word of a GD entry under the same
6007 condition as that for IE, but ld.so needs to differentiate
6008 LD and GD entries. */
6009 if (known && (tls_mask & TLS_TLS) != 0
6010 && (tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
6012 return need * sizeof (Elf32_External_Rela) / 4;
6015 /* If H is undefined, make it dynamic if that makes sense. */
6018 ensure_undef_dynamic (struct bfd_link_info *info,
6019 struct elf_link_hash_entry *h)
6021 struct elf_link_hash_table *htab = elf_hash_table (info);
6023 if (htab->dynamic_sections_created
6024 && ((info->dynamic_undefined_weak != 0
6025 && h->root.type == bfd_link_hash_undefweak)
6026 || h->root.type == bfd_link_hash_undefined)
6029 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
6030 return bfd_elf_link_record_dynamic_symbol (info, h);
6034 /* Allocate space in associated reloc sections for dynamic relocs. */
6037 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
6039 struct bfd_link_info *info = inf;
6040 struct ppc_elf_link_hash_entry *eh;
6041 struct ppc_elf_link_hash_table *htab;
6042 struct elf_dyn_relocs *p;
6045 if (h->root.type == bfd_link_hash_indirect)
6048 htab = ppc_elf_hash_table (info);
6049 eh = (struct ppc_elf_link_hash_entry *) h;
6050 if (eh->elf.got.refcount > 0
6051 || (ELIMINATE_COPY_RELOCS
6052 && !eh->elf.def_regular
6053 && eh->elf.protected_def
6054 && eh->has_addr16_ha
6055 && eh->has_addr16_lo
6056 && htab->params->pic_fixup > 0))
6060 /* Make sure this symbol is output as a dynamic symbol. */
6061 if (!ensure_undef_dynamic (info, &eh->elf))
6065 if ((eh->tls_mask & (TLS_TLS | TLS_LD)) == (TLS_TLS | TLS_LD))
6067 if (!eh->elf.def_dynamic)
6068 /* We'll just use htab->tlsld_got.offset. This should
6069 always be the case. It's a little odd if we have
6070 a local dynamic reloc against a non-local symbol. */
6071 htab->tlsld_got.refcount += 1;
6075 need += got_entries_needed (eh->tls_mask);
6077 eh->elf.got.offset = (bfd_vma) -1;
6080 eh->elf.got.offset = allocate_got (htab, need);
6081 if ((bfd_link_pic (info)
6082 || (htab->elf.dynamic_sections_created
6083 && eh->elf.dynindx != -1
6084 && !SYMBOL_REFERENCES_LOCAL (info, &eh->elf)))
6085 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &eh->elf))
6088 bfd_boolean tprel_known = (bfd_link_executable (info)
6089 && SYMBOL_REFERENCES_LOCAL (info,
6092 need = got_relocs_needed (eh->tls_mask, need, tprel_known);
6093 if ((eh->tls_mask & (TLS_TLS | TLS_LD)) == (TLS_TLS | TLS_LD)
6094 && eh->elf.def_dynamic)
6095 need -= sizeof (Elf32_External_Rela);
6096 rsec = htab->elf.srelgot;
6097 if (eh->elf.type == STT_GNU_IFUNC)
6098 rsec = htab->elf.irelplt;
6104 eh->elf.got.offset = (bfd_vma) -1;
6106 /* If no dynamic sections we can't have dynamic relocs, except for
6107 IFUNCs which are handled even in static executables. */
6108 if (!htab->elf.dynamic_sections_created
6109 && h->type != STT_GNU_IFUNC)
6110 eh->dyn_relocs = NULL;
6112 /* Discard relocs on undefined symbols that must be local. */
6113 else if (h->root.type == bfd_link_hash_undefined
6114 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
6115 eh->dyn_relocs = NULL;
6117 /* Also discard relocs on undefined weak syms with non-default
6118 visibility, or when dynamic_undefined_weak says so. */
6119 else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
6120 eh->dyn_relocs = NULL;
6122 if (eh->dyn_relocs == NULL)
6125 /* In the shared -Bsymbolic case, discard space allocated for
6126 dynamic pc-relative relocs against symbols which turn out to be
6127 defined in regular objects. For the normal shared case, discard
6128 space for relocs that have become local due to symbol visibility
6130 else if (bfd_link_pic (info))
6132 /* Relocs that use pc_count are those that appear on a call insn,
6133 or certain REL relocs (see must_be_dyn_reloc) that can be
6134 generated via assembly. We want calls to protected symbols to
6135 resolve directly to the function rather than going via the plt.
6136 If people want function pointer comparisons to work as expected
6137 then they should avoid writing weird assembly. */
6138 if (SYMBOL_CALLS_LOCAL (info, h))
6140 struct elf_dyn_relocs **pp;
6142 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
6144 p->count -= p->pc_count;
6153 if (htab->is_vxworks)
6155 struct elf_dyn_relocs **pp;
6157 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
6159 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
6166 if (eh->dyn_relocs != NULL)
6168 /* Make sure this symbol is output as a dynamic symbol. */
6169 if (!ensure_undef_dynamic (info, h))
6173 else if (ELIMINATE_COPY_RELOCS)
6175 /* For the non-pic case, discard space for relocs against
6176 symbols which turn out to need copy relocs or are not
6178 if (h->dynamic_adjusted
6180 && !ELF_COMMON_DEF_P (h)
6181 && !(h->protected_def
6182 && eh->has_addr16_ha
6183 && eh->has_addr16_lo
6184 && htab->params->pic_fixup > 0))
6186 /* Make sure this symbol is output as a dynamic symbol. */
6187 if (!ensure_undef_dynamic (info, h))
6190 if (h->dynindx == -1)
6191 eh->dyn_relocs = NULL;
6194 eh->dyn_relocs = NULL;
6197 /* Allocate space. */
6198 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6200 asection *sreloc = elf_section_data (p->sec)->sreloc;
6201 if (eh->elf.type == STT_GNU_IFUNC)
6202 sreloc = htab->elf.irelplt;
6203 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6206 /* Handle PLT relocs. Done last, after dynindx has settled.
6207 We might need a PLT entry when the symbol
6210 c) has plt16 relocs and has been processed by adjust_dynamic_symbol, or
6211 d) has plt16 relocs and we are linking statically. */
6212 dyn = htab->elf.dynamic_sections_created && h->dynindx != -1;
6214 || h->type == STT_GNU_IFUNC
6215 || (h->needs_plt && h->dynamic_adjusted)
6218 && !htab->elf.dynamic_sections_created
6219 && (ppc_elf_hash_entry (h)->tls_mask
6220 & (TLS_TLS | PLT_KEEP)) == PLT_KEEP))
6222 struct plt_entry *ent;
6223 bfd_boolean doneone = FALSE;
6224 bfd_vma plt_offset = 0, glink_offset = (bfd_vma) -1;
6226 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6227 if (ent->plt.refcount > 0)
6229 asection *s = htab->elf.splt;
6233 if (h->type == STT_GNU_IFUNC)
6239 if (htab->plt_type == PLT_NEW || !dyn)
6243 plt_offset = s->size;
6246 ent->plt.offset = plt_offset;
6248 if (s == htab->pltlocal)
6249 ent->glink_offset = glink_offset;
6253 if (!doneone || bfd_link_pic (info))
6255 glink_offset = s->size;
6256 s->size += GLINK_ENTRY_SIZE (htab, h);
6259 && !bfd_link_pic (info)
6263 h->root.u.def.section = s;
6264 h->root.u.def.value = glink_offset;
6266 ent->glink_offset = glink_offset;
6268 if (htab->params->emit_stub_syms
6269 && !add_stub_sym (ent, h, info))
6277 /* If this is the first .plt entry, make room
6278 for the special first entry. */
6280 s->size += htab->plt_initial_entry_size;
6282 /* The PowerPC PLT is actually composed of two
6283 parts, the first part is 2 words (for a load
6284 and a jump), and then there is a remaining
6285 word available at the end. */
6286 plt_offset = (htab->plt_initial_entry_size
6287 + (htab->plt_slot_size
6289 - htab->plt_initial_entry_size)
6290 / htab->plt_entry_size)));
6292 /* If this symbol is not defined in a regular
6293 file, and we are not generating a shared
6294 library, then set the symbol to this location
6295 in the .plt. This is to avoid text
6296 relocations, and is required to make
6297 function pointers compare as equal between
6298 the normal executable and the shared library. */
6299 if (! bfd_link_pic (info)
6303 h->root.u.def.section = s;
6304 h->root.u.def.value = plt_offset;
6307 /* Make room for this entry. */
6308 s->size += htab->plt_entry_size;
6309 /* After the 8192nd entry, room for two entries
6311 if (htab->plt_type == PLT_OLD
6312 && (s->size - htab->plt_initial_entry_size)
6313 / htab->plt_entry_size
6314 > PLT_NUM_SINGLE_ENTRIES)
6315 s->size += htab->plt_entry_size;
6317 ent->plt.offset = plt_offset;
6320 /* We also need to make an entry in the .rela.plt section. */
6325 if (h->type == STT_GNU_IFUNC)
6327 s = htab->elf.irelplt;
6328 s->size += sizeof (Elf32_External_Rela);
6330 else if (bfd_link_pic (info))
6332 s = htab->relpltlocal;
6333 s->size += sizeof (Elf32_External_Rela);
6338 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
6340 if (htab->plt_type == PLT_VXWORKS)
6342 /* Allocate space for the unloaded relocations. */
6343 if (!bfd_link_pic (info)
6344 && htab->elf.dynamic_sections_created)
6347 == (bfd_vma) htab->plt_initial_entry_size)
6349 htab->srelplt2->size
6350 += (sizeof (Elf32_External_Rela)
6351 * VXWORKS_PLTRESOLVE_RELOCS);
6354 htab->srelplt2->size
6355 += (sizeof (Elf32_External_Rela)
6356 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
6359 /* Every PLT entry has an associated GOT entry in
6361 htab->elf.sgotplt->size += 4;
6368 ent->plt.offset = (bfd_vma) -1;
6372 h->plt.plist = NULL;
6378 h->plt.plist = NULL;
6385 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
6386 read-only sections. */
6389 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
6393 if (h->root.type == bfd_link_hash_indirect)
6396 sec = readonly_dynrelocs (h);
6399 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
6401 info->flags |= DF_TEXTREL;
6402 info->callbacks->minfo
6403 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
6404 sec->owner, h->root.root.string, sec);
6406 /* Not an error, just cut short the traversal. */
6412 static const unsigned char glink_eh_frame_cie[] =
6414 0, 0, 0, 16, /* length. */
6415 0, 0, 0, 0, /* id. */
6416 1, /* CIE version. */
6417 'z', 'R', 0, /* Augmentation string. */
6418 4, /* Code alignment. */
6419 0x7c, /* Data alignment. */
6421 1, /* Augmentation size. */
6422 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6423 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6426 /* Set the sizes of the dynamic sections. */
6429 ppc_elf_size_dynamic_sections (bfd *output_bfd,
6430 struct bfd_link_info *info)
6432 struct ppc_elf_link_hash_table *htab;
6438 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
6441 htab = ppc_elf_hash_table (info);
6442 BFD_ASSERT (htab->elf.dynobj != NULL);
6444 if (elf_hash_table (info)->dynamic_sections_created)
6446 /* Set the contents of the .interp section to the interpreter. */
6447 if (bfd_link_executable (info) && !info->nointerp)
6449 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
6450 BFD_ASSERT (s != NULL);
6451 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6452 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6456 if (htab->plt_type == PLT_OLD)
6457 htab->got_header_size = 16;
6458 else if (htab->plt_type == PLT_NEW)
6459 htab->got_header_size = 12;
6461 /* Set up .got offsets for local syms, and space for local dynamic
6463 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
6465 bfd_signed_vma *local_got;
6466 bfd_signed_vma *end_local_got;
6467 struct plt_entry **local_plt;
6468 struct plt_entry **end_local_plt;
6470 bfd_size_type locsymcount;
6471 Elf_Internal_Shdr *symtab_hdr;
6473 if (!is_ppc_elf (ibfd))
6476 for (s = ibfd->sections; s != NULL; s = s->next)
6478 struct ppc_dyn_relocs *p;
6480 for (p = ((struct ppc_dyn_relocs *)
6481 elf_section_data (s)->local_dynrel);
6485 if (!bfd_is_abs_section (p->sec)
6486 && bfd_is_abs_section (p->sec->output_section))
6488 /* Input section has been discarded, either because
6489 it is a copy of a linkonce section or due to
6490 linker script /DISCARD/, so we'll be discarding
6493 else if (htab->is_vxworks
6494 && strcmp (p->sec->output_section->name,
6497 /* Relocations in vxworks .tls_vars sections are
6498 handled specially by the loader. */
6500 else if (p->count != 0)
6502 asection *sreloc = elf_section_data (p->sec)->sreloc;
6504 sreloc = htab->elf.irelplt;
6505 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6506 if ((p->sec->output_section->flags
6507 & (SEC_READONLY | SEC_ALLOC))
6508 == (SEC_READONLY | SEC_ALLOC))
6510 info->flags |= DF_TEXTREL;
6511 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
6512 p->sec->owner, p->sec);
6518 local_got = elf_local_got_refcounts (ibfd);
6522 symtab_hdr = &elf_symtab_hdr (ibfd);
6523 locsymcount = symtab_hdr->sh_info;
6524 end_local_got = local_got + locsymcount;
6525 local_plt = (struct plt_entry **) end_local_got;
6526 end_local_plt = local_plt + locsymcount;
6527 lgot_masks = (char *) end_local_plt;
6529 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6533 if ((*lgot_masks & (TLS_TLS | TLS_LD)) == (TLS_TLS | TLS_LD))
6534 htab->tlsld_got.refcount += 1;
6535 need = got_entries_needed (*lgot_masks);
6537 *local_got = (bfd_vma) -1;
6540 *local_got = allocate_got (htab, need);
6541 if (bfd_link_pic (info))
6544 bfd_boolean tprel_known = bfd_link_executable (info);
6546 need = got_relocs_needed (*lgot_masks, need, tprel_known);
6547 srel = htab->elf.srelgot;
6548 if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC)
6549 srel = htab->elf.irelplt;
6555 *local_got = (bfd_vma) -1;
6557 if (htab->is_vxworks)
6560 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6561 lgot_masks = (char *) end_local_plt;
6562 for (; local_plt < end_local_plt; ++local_plt, ++lgot_masks)
6564 struct plt_entry *ent;
6565 bfd_boolean doneone = FALSE;
6566 bfd_vma plt_offset = 0, glink_offset = (bfd_vma) -1;
6568 for (ent = *local_plt; ent != NULL; ent = ent->next)
6569 if (ent->plt.refcount > 0)
6571 if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC)
6573 else if ((*lgot_masks & (TLS_TLS | PLT_KEEP)) != PLT_KEEP)
6575 ent->plt.offset = (bfd_vma) -1;
6583 plt_offset = s->size;
6586 ent->plt.offset = plt_offset;
6588 if (s != htab->pltlocal && (!doneone || bfd_link_pic (info)))
6591 glink_offset = s->size;
6592 s->size += GLINK_ENTRY_SIZE (htab, NULL);
6594 ent->glink_offset = glink_offset;
6598 if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC)
6600 s = htab->elf.irelplt;
6601 s->size += sizeof (Elf32_External_Rela);
6603 else if (bfd_link_pic (info))
6605 s = htab->relpltlocal;
6606 s->size += sizeof (Elf32_External_Rela);
6612 ent->plt.offset = (bfd_vma) -1;
6616 /* Allocate space for global sym dynamic relocs. */
6617 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6619 if (htab->tlsld_got.refcount > 0)
6621 htab->tlsld_got.offset = allocate_got (htab, 8);
6622 if (bfd_link_pic (info))
6623 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
6626 htab->tlsld_got.offset = (bfd_vma) -1;
6628 if (htab->elf.sgot != NULL && htab->plt_type != PLT_VXWORKS)
6630 unsigned int g_o_t = 32768;
6632 /* If we haven't allocated the header, do so now. When we get here,
6633 for old plt/got the got size will be 0 to 32764 (not allocated),
6634 or 32780 to 65536 (header allocated). For new plt/got, the
6635 corresponding ranges are 0 to 32768 and 32780 to 65536. */
6636 if (htab->elf.sgot->size <= 32768)
6638 g_o_t = htab->elf.sgot->size;
6639 if (htab->plt_type == PLT_OLD)
6641 htab->elf.sgot->size += htab->got_header_size;
6644 htab->elf.hgot->root.u.def.value = g_o_t;
6646 if (bfd_link_pic (info))
6648 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6650 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6651 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
6653 if (info->emitrelocations)
6655 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6657 if (sda != NULL && sda->ref_regular)
6658 sda->root.u.def.section->flags |= SEC_KEEP;
6659 sda = htab->sdata[1].sym;
6660 if (sda != NULL && sda->ref_regular)
6661 sda->root.u.def.section->flags |= SEC_KEEP;
6664 if (htab->glink != NULL
6665 && htab->glink->size != 0
6666 && htab->elf.dynamic_sections_created)
6668 htab->glink_pltresolve = htab->glink->size;
6669 /* Space for the branch table. */
6671 += htab->elf.srelplt->size / (sizeof (Elf32_External_Rela) / 4) - 4;
6672 /* Pad out to align the start of PLTresolve. */
6673 htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
6675 htab->glink->size += GLINK_PLTRESOLVE;
6677 if (htab->params->emit_stub_syms)
6679 struct elf_link_hash_entry *sh;
6680 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6681 TRUE, FALSE, FALSE);
6684 if (sh->root.type == bfd_link_hash_new)
6686 sh->root.type = bfd_link_hash_defined;
6687 sh->root.u.def.section = htab->glink;
6688 sh->root.u.def.value = htab->glink_pltresolve;
6689 sh->ref_regular = 1;
6690 sh->def_regular = 1;
6691 sh->ref_regular_nonweak = 1;
6692 sh->forced_local = 1;
6694 sh->root.linker_def = 1;
6696 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6697 TRUE, FALSE, FALSE);
6700 if (sh->root.type == bfd_link_hash_new)
6702 sh->root.type = bfd_link_hash_defined;
6703 sh->root.u.def.section = htab->glink;
6704 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6705 sh->ref_regular = 1;
6706 sh->def_regular = 1;
6707 sh->ref_regular_nonweak = 1;
6708 sh->forced_local = 1;
6710 sh->root.linker_def = 1;
6715 if (htab->glink != NULL
6716 && htab->glink->size != 0
6717 && htab->glink_eh_frame != NULL
6718 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6719 && _bfd_elf_eh_frame_present (info))
6721 s = htab->glink_eh_frame;
6722 s->size = sizeof (glink_eh_frame_cie) + 20;
6723 if (bfd_link_pic (info))
6726 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6731 /* We've now determined the sizes of the various dynamic sections.
6732 Allocate memory for them. */
6734 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
6736 bfd_boolean strip_section = TRUE;
6738 if ((s->flags & SEC_LINKER_CREATED) == 0)
6741 if (s == htab->elf.splt
6742 || s == htab->elf.sgot)
6744 /* We'd like to strip these sections if they aren't needed, but if
6745 we've exported dynamic symbols from them we must leave them.
6746 It's too late to tell BFD to get rid of the symbols. */
6747 if (htab->elf.hplt != NULL)
6748 strip_section = FALSE;
6749 /* Strip this section if we don't need it; see the
6752 else if (s == htab->elf.iplt
6753 || s == htab->pltlocal
6755 || s == htab->glink_eh_frame
6756 || s == htab->elf.sgotplt
6758 || s == htab->elf.sdynbss
6759 || s == htab->elf.sdynrelro
6760 || s == htab->dynsbss)
6762 /* Strip these too. */
6764 else if (s == htab->sdata[0].section
6765 || s == htab->sdata[1].section)
6767 strip_section = (s->flags & SEC_KEEP) == 0;
6769 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6774 /* Remember whether there are any relocation sections. */
6777 /* We use the reloc_count field as a counter if we need
6778 to copy relocs into the output file. */
6784 /* It's not one of our sections, so don't allocate space. */
6788 if (s->size == 0 && strip_section)
6790 /* If we don't need this section, strip it from the
6791 output file. This is mostly to handle .rela.bss and
6792 .rela.plt. We must create both sections in
6793 create_dynamic_sections, because they must be created
6794 before the linker maps input sections to output
6795 sections. The linker does that before
6796 adjust_dynamic_symbol is called, and it is that
6797 function which decides whether anything needs to go
6798 into these sections. */
6799 s->flags |= SEC_EXCLUDE;
6803 if ((s->flags & SEC_HAS_CONTENTS) == 0)
6806 /* Allocate memory for the section contents. */
6807 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6808 if (s->contents == NULL)
6812 if (htab->elf.dynamic_sections_created)
6814 /* Add some entries to the .dynamic section. We fill in the
6815 values later, in ppc_elf_finish_dynamic_sections, but we
6816 must add the entries now so that we get the correct size for
6817 the .dynamic section. The DT_DEBUG entry is filled in by the
6818 dynamic linker and used by the debugger. */
6819 #define add_dynamic_entry(TAG, VAL) \
6820 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6822 if (bfd_link_executable (info))
6824 if (!add_dynamic_entry (DT_DEBUG, 0))
6828 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
6830 if (!add_dynamic_entry (DT_PLTGOT, 0)
6831 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6832 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6833 || !add_dynamic_entry (DT_JMPREL, 0))
6837 if (htab->plt_type == PLT_NEW
6838 && htab->glink != NULL
6839 && htab->glink->size != 0)
6841 if (!add_dynamic_entry (DT_PPC_GOT, 0))
6843 if (!htab->params->no_tls_get_addr_opt
6844 && htab->tls_get_addr != NULL
6845 && htab->tls_get_addr->plt.plist != NULL
6846 && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
6852 if (!add_dynamic_entry (DT_RELA, 0)
6853 || !add_dynamic_entry (DT_RELASZ, 0)
6854 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6858 /* If any dynamic relocs apply to a read-only section, then we
6859 need a DT_TEXTREL entry. */
6860 if ((info->flags & DF_TEXTREL) == 0)
6861 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
6864 if ((info->flags & DF_TEXTREL) != 0)
6866 if (!add_dynamic_entry (DT_TEXTREL, 0))
6869 if (htab->is_vxworks
6870 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6873 #undef add_dynamic_entry
6875 if (htab->glink_eh_frame != NULL
6876 && htab->glink_eh_frame->contents != NULL)
6878 unsigned char *p = htab->glink_eh_frame->contents;
6881 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6882 /* CIE length (rewrite in case little-endian). */
6883 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6884 p += sizeof (glink_eh_frame_cie);
6886 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6887 bfd_put_32 (htab->elf.dynobj, val, p);
6890 val = p - htab->glink_eh_frame->contents;
6891 bfd_put_32 (htab->elf.dynobj, val, p);
6893 /* Offset to .glink. Set later. */
6896 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6901 if (bfd_link_pic (info)
6902 && htab->elf.dynamic_sections_created)
6904 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6906 *p++ = DW_CFA_advance_loc + adv;
6909 *p++ = DW_CFA_advance_loc1;
6912 else if (adv < 65536)
6914 *p++ = DW_CFA_advance_loc2;
6915 bfd_put_16 (htab->elf.dynobj, adv, p);
6920 *p++ = DW_CFA_advance_loc4;
6921 bfd_put_32 (htab->elf.dynobj, adv, p);
6924 *p++ = DW_CFA_register;
6927 *p++ = DW_CFA_advance_loc + 4;
6928 *p++ = DW_CFA_restore_extended;
6931 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6932 == htab->glink_eh_frame->size);
6938 /* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
6939 if it looks like nothing is using them. */
6942 maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
6944 struct elf_link_hash_entry *sda = lsect->sym;
6946 if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
6950 s = bfd_get_section_by_name (output_bfd, lsect->name);
6951 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6953 s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
6954 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6956 sda->def_regular = 0;
6957 /* This is somewhat magic. See elf_link_output_extsym. */
6958 sda->ref_dynamic = 1;
6959 sda->forced_local = 0;
6966 ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
6968 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
6972 maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
6973 maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
6978 /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6981 ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6983 if (h->plt.plist != NULL
6985 && (!h->pointer_equality_needed
6986 || !h->ref_regular_nonweak))
6989 return _bfd_elf_hash_symbol (h);
6992 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6994 /* Relaxation trampolines. r12 is available for clobbering (r11, is
6995 used for some functions that are allowed to break the ABI). */
6996 static const int shared_stub_entry[] =
6998 0x7c0802a6, /* mflr 0 */
6999 0x429f0005, /* bcl 20, 31, .Lxxx */
7000 0x7d8802a6, /* mflr 12 */
7001 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
7002 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
7003 0x7c0803a6, /* mtlr 0 */
7004 0x7d8903a6, /* mtctr 12 */
7005 0x4e800420, /* bctr */
7008 static const int stub_entry[] =
7010 0x3d800000, /* lis 12,xxx@ha */
7011 0x398c0000, /* addi 12,12,xxx@l */
7012 0x7d8903a6, /* mtctr 12 */
7013 0x4e800420, /* bctr */
7016 struct ppc_elf_relax_info
7018 unsigned int workaround_size;
7019 unsigned int picfixup_size;
7022 /* This function implements long branch trampolines, and the ppc476
7023 icache bug workaround. Any section needing trampolines or patch
7024 space for the workaround has its size extended so that we can
7025 add trampolines at the end of the section. */
7028 ppc_elf_relax_section (bfd *abfd,
7030 struct bfd_link_info *link_info,
7033 struct one_branch_fixup
7035 struct one_branch_fixup *next;
7037 /* Final link, can use the symbol offset. For a
7038 relocatable link we use the symbol's index. */
7043 Elf_Internal_Shdr *symtab_hdr;
7044 bfd_byte *contents = NULL;
7045 Elf_Internal_Sym *isymbuf = NULL;
7046 Elf_Internal_Rela *internal_relocs = NULL;
7047 Elf_Internal_Rela *irel, *irelend = NULL;
7048 struct one_branch_fixup *branch_fixups = NULL;
7049 struct ppc_elf_relax_info *relax_info = NULL;
7050 unsigned changes = 0;
7051 bfd_boolean workaround_change;
7052 struct ppc_elf_link_hash_table *htab;
7053 bfd_size_type trampbase, trampoff, newsize, picfixup_size;
7055 bfd_boolean maybe_pasted;
7059 /* No need to do anything with non-alloc or non-code sections. */
7060 if ((isec->flags & SEC_ALLOC) == 0
7061 || (isec->flags & SEC_CODE) == 0
7062 || (isec->flags & SEC_LINKER_CREATED) != 0
7066 /* We cannot represent the required PIC relocs in the output, so don't
7067 do anything. The linker doesn't support mixing -shared and -r
7069 if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info))
7072 htab = ppc_elf_hash_table (link_info);
7076 isec->size = (isec->size + 3) & -4;
7077 if (isec->rawsize == 0)
7078 isec->rawsize = isec->size;
7079 trampbase = isec->size;
7081 BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
7082 || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
7083 isec->sec_info_type = SEC_INFO_TYPE_TARGET;
7085 if (htab->params->ppc476_workaround
7086 || htab->params->pic_fixup > 0)
7088 if (elf_section_data (isec)->sec_info == NULL)
7090 elf_section_data (isec)->sec_info
7091 = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
7092 if (elf_section_data (isec)->sec_info == NULL)
7095 relax_info = elf_section_data (isec)->sec_info;
7096 trampbase -= relax_info->workaround_size;
7099 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
7100 || strcmp (isec->output_section->name, ".fini") == 0);
7101 /* Space for a branch around any trampolines. */
7102 trampoff = trampbase;
7103 if (maybe_pasted && trampbase == isec->rawsize)
7106 symtab_hdr = &elf_symtab_hdr (abfd);
7108 if (htab->params->branch_trampolines
7109 || htab->params->pic_fixup > 0)
7111 /* Get a copy of the native relocations. */
7112 if (isec->reloc_count != 0)
7114 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
7115 link_info->keep_memory);
7116 if (internal_relocs == NULL)
7120 got2 = bfd_get_section_by_name (abfd, ".got2");
7122 irelend = internal_relocs + isec->reloc_count;
7123 for (irel = internal_relocs; irel < irelend; irel++)
7125 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
7128 struct one_branch_fixup *f;
7129 size_t insn_offset = 0;
7130 bfd_vma max_branch_offset = 0, val;
7133 struct elf_link_hash_entry *h;
7134 Elf_Internal_Sym *isym;
7135 struct plt_entry **plist;
7136 unsigned char sym_type;
7141 case R_PPC_LOCAL24PC:
7142 case R_PPC_PLTREL24:
7144 max_branch_offset = 1 << 25;
7148 case R_PPC_REL14_BRTAKEN:
7149 case R_PPC_REL14_BRNTAKEN:
7150 max_branch_offset = 1 << 15;
7153 case R_PPC_ADDR16_HA:
7154 if (htab->params->pic_fixup > 0)
7162 /* Get the value of the symbol referred to by the reloc. */
7163 if (!get_sym_h (&h, &isym, &tsec, NULL, &isymbuf,
7164 ELF32_R_SYM (irel->r_info), abfd))
7171 else if (isym->st_shndx == SHN_UNDEF)
7172 tsec = bfd_und_section_ptr;
7173 else if (isym->st_shndx == SHN_ABS)
7174 tsec = bfd_abs_section_ptr;
7175 else if (isym->st_shndx == SHN_COMMON)
7176 tsec = bfd_com_section_ptr;
7178 toff = isym->st_value;
7179 sym_type = ELF_ST_TYPE (isym->st_info);
7184 toff = h->root.u.def.value;
7185 else if (h->root.type == bfd_link_hash_undefined
7186 || h->root.type == bfd_link_hash_undefweak)
7190 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
7191 tsec = bfd_und_section_ptr;
7192 toff = bfd_link_relocatable (link_info) ? indx : 0;
7197 /* If this branch is to __tls_get_addr then we may later
7198 optimise away the call. We won't be needing a long-
7199 branch stub in that case. */
7200 if (bfd_link_executable (link_info)
7201 && h == htab->tls_get_addr
7202 && irel != internal_relocs)
7204 unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
7205 unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
7206 unsigned int tls_mask = 0;
7208 /* The previous reloc should be one of R_PPC_TLSGD or
7209 R_PPC_TLSLD, or for older object files, a reloc
7210 on the __tls_get_addr arg setup insn. Get tls
7211 mask bits from the symbol on that reloc. */
7212 if (t_symndx < symtab_hdr->sh_info)
7214 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7216 if (local_got_offsets != NULL)
7218 struct plt_entry **local_plt = (struct plt_entry **)
7219 (local_got_offsets + symtab_hdr->sh_info);
7220 char *lgot_masks = (char *)
7221 (local_plt + symtab_hdr->sh_info);
7222 tls_mask = lgot_masks[t_symndx];
7227 struct elf_link_hash_entry *th
7228 = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
7230 while (th->root.type == bfd_link_hash_indirect
7231 || th->root.type == bfd_link_hash_warning)
7232 th = (struct elf_link_hash_entry *) th->root.u.i.link;
7235 = ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
7238 /* The mask bits tell us if the call will be
7240 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
7241 && (t_rtype == R_PPC_TLSGD
7242 || t_rtype == R_PPC_GOT_TLSGD16
7243 || t_rtype == R_PPC_GOT_TLSGD16_LO))
7245 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
7246 && (t_rtype == R_PPC_TLSLD
7247 || t_rtype == R_PPC_GOT_TLSLD16
7248 || t_rtype == R_PPC_GOT_TLSLD16_LO))
7255 if (r_type == R_PPC_ADDR16_HA)
7260 && ppc_elf_hash_entry (h)->has_addr16_ha
7261 && ppc_elf_hash_entry (h)->has_addr16_lo)
7262 picfixup_size += 12;
7266 /* The condition here under which we call find_plt_ent must
7267 match that in relocate_section. If we call find_plt_ent here
7268 but not in relocate_section, or vice versa, then the branch
7269 destination used here may be incorrect. */
7273 /* We know is_branch_reloc (r_type) is true. */
7274 if (h->type == STT_GNU_IFUNC
7275 || r_type == R_PPC_PLTREL24)
7276 plist = &h->plt.plist;
7278 else if (sym_type == STT_GNU_IFUNC
7279 && elf_local_got_offsets (abfd) != NULL)
7281 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7282 struct plt_entry **local_plt = (struct plt_entry **)
7283 (local_got_offsets + symtab_hdr->sh_info);
7284 plist = local_plt + ELF32_R_SYM (irel->r_info);
7289 struct plt_entry *ent;
7291 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info))
7292 addend = irel->r_addend;
7293 ent = find_plt_ent (plist, got2, addend);
7296 if (htab->plt_type == PLT_NEW
7298 || !htab->elf.dynamic_sections_created
7299 || h->dynindx == -1)
7302 toff = ent->glink_offset;
7306 tsec = htab->elf.splt;
7307 toff = ent->plt.offset;
7312 /* If the branch and target are in the same section, you have
7313 no hope of adding stubs. We'll error out later should the
7318 /* There probably isn't any reason to handle symbols in
7319 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
7320 attribute for a code section, and we are only looking at
7321 branches. However, implement it correctly here as a
7322 reference for other target relax_section functions. */
7323 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
7325 /* At this stage in linking, no SEC_MERGE symbol has been
7326 adjusted, so all references to such symbols need to be
7327 passed through _bfd_merged_section_offset. (Later, in
7328 relocate_section, all SEC_MERGE symbols *except* for
7329 section symbols have been adjusted.)
7331 gas may reduce relocations against symbols in SEC_MERGE
7332 sections to a relocation against the section symbol when
7333 the original addend was zero. When the reloc is against
7334 a section symbol we should include the addend in the
7335 offset passed to _bfd_merged_section_offset, since the
7336 location of interest is the original symbol. On the
7337 other hand, an access to "sym+addend" where "sym" is not
7338 a section symbol should not include the addend; Such an
7339 access is presumed to be an offset from "sym"; The
7340 location of interest is just "sym". */
7341 if (sym_type == STT_SECTION)
7342 toff += irel->r_addend;
7345 = _bfd_merged_section_offset (abfd, &tsec,
7346 elf_section_data (tsec)->sec_info,
7349 if (sym_type != STT_SECTION)
7350 toff += irel->r_addend;
7352 /* PLTREL24 addends are special. */
7353 else if (r_type != R_PPC_PLTREL24)
7354 toff += irel->r_addend;
7356 /* Attempted -shared link of non-pic code loses. */
7357 if ((!bfd_link_relocatable (link_info)
7358 && tsec == bfd_und_section_ptr)
7359 || tsec->output_section == NULL
7360 || (tsec->owner != NULL
7361 && (tsec->owner->flags & BFD_PLUGIN) != 0))
7364 roff = irel->r_offset;
7366 /* If the branch is in range, no need to do anything. */
7367 if (tsec != bfd_und_section_ptr
7368 && (!bfd_link_relocatable (link_info)
7369 /* A relocatable link may have sections moved during
7370 final link, so do not presume they remain in range. */
7371 || tsec->output_section == isec->output_section))
7373 bfd_vma symaddr, reladdr;
7375 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7376 reladdr = isec->output_section->vma + isec->output_offset + roff;
7377 if (symaddr - reladdr + max_branch_offset
7378 < 2 * max_branch_offset)
7382 /* Look for an existing fixup to this address. */
7383 for (f = branch_fixups; f ; f = f->next)
7384 if (f->tsec == tsec && f->toff == toff)
7390 unsigned long stub_rtype;
7392 val = trampoff - roff;
7393 if (val >= max_branch_offset)
7394 /* Oh dear, we can't reach a trampoline. Don't try to add
7395 one. We'll report an error later. */
7398 if (bfd_link_pic (link_info))
7400 size = 4 * ARRAY_SIZE (shared_stub_entry);
7405 size = 4 * ARRAY_SIZE (stub_entry);
7408 stub_rtype = R_PPC_RELAX;
7409 if (tsec == htab->elf.splt
7410 || tsec == htab->glink)
7412 stub_rtype = R_PPC_RELAX_PLT;
7413 if (r_type == R_PPC_PLTREL24)
7414 stub_rtype = R_PPC_RELAX_PLTREL24;
7417 /* Hijack the old relocation. Since we need two
7418 relocations for this use a "composite" reloc. */
7419 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
7421 irel->r_offset = trampoff + insn_offset;
7422 if (r_type == R_PPC_PLTREL24
7423 && stub_rtype != R_PPC_RELAX_PLTREL24)
7426 /* Record the fixup so we don't do it again this section. */
7427 f = bfd_malloc (sizeof (*f));
7428 f->next = branch_fixups;
7431 f->trampoff = trampoff;
7439 val = f->trampoff - roff;
7440 if (val >= max_branch_offset)
7443 /* Nop out the reloc, since we're finalizing things here. */
7444 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7447 /* Get the section contents. */
7448 if (contents == NULL)
7450 /* Get cached copy if it exists. */
7451 if (elf_section_data (isec)->this_hdr.contents != NULL)
7452 contents = elf_section_data (isec)->this_hdr.contents;
7453 /* Go get them off disk. */
7454 else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
7458 /* Fix up the existing branch to hit the trampoline. */
7459 hit_addr = contents + roff;
7463 case R_PPC_LOCAL24PC:
7464 case R_PPC_PLTREL24:
7465 t0 = bfd_get_32 (abfd, hit_addr);
7467 t0 |= val & 0x3fffffc;
7468 bfd_put_32 (abfd, t0, hit_addr);
7472 case R_PPC_REL14_BRTAKEN:
7473 case R_PPC_REL14_BRNTAKEN:
7474 t0 = bfd_get_32 (abfd, hit_addr);
7477 bfd_put_32 (abfd, t0, hit_addr);
7482 while (branch_fixups != NULL)
7484 struct one_branch_fixup *f = branch_fixups;
7485 branch_fixups = branch_fixups->next;
7490 workaround_change = FALSE;
7492 if (htab->params->ppc476_workaround
7493 && (!bfd_link_relocatable (link_info)
7494 || isec->output_section->alignment_power >= htab->params->pagesize_p2))
7496 bfd_vma addr, end_addr;
7497 unsigned int crossings;
7498 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
7500 addr = isec->output_section->vma + isec->output_offset;
7501 end_addr = addr + trampoff;
7503 crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
7506 /* Keep space aligned, to ensure the patch code itself does
7507 not cross a page. Don't decrease size calculated on a
7508 previous pass as otherwise we might never settle on a layout. */
7509 newsize = 15 - ((end_addr - 1) & 15);
7510 newsize += crossings * 16;
7511 if (relax_info->workaround_size < newsize)
7513 relax_info->workaround_size = newsize;
7514 workaround_change = TRUE;
7516 /* Ensure relocate_section is called. */
7517 isec->flags |= SEC_RELOC;
7519 newsize = trampoff + relax_info->workaround_size;
7522 if (htab->params->pic_fixup > 0)
7524 picfixup_size -= relax_info->picfixup_size;
7525 if (picfixup_size != 0)
7526 relax_info->picfixup_size += picfixup_size;
7527 newsize += relax_info->picfixup_size;
7530 if (changes != 0 || picfixup_size != 0 || workaround_change)
7531 isec->size = newsize;
7534 && symtab_hdr->contents != (unsigned char *) isymbuf)
7536 if (! link_info->keep_memory)
7540 /* Cache the symbols for elf_link_input_bfd. */
7541 symtab_hdr->contents = (unsigned char *) isymbuf;
7545 if (contents != NULL
7546 && elf_section_data (isec)->this_hdr.contents != contents)
7548 if (!changes && !link_info->keep_memory)
7552 /* Cache the section contents for elf_link_input_bfd. */
7553 elf_section_data (isec)->this_hdr.contents = contents;
7557 changes += picfixup_size;
7560 /* Append sufficient NOP relocs so we can write out relocation
7561 information for the trampolines. */
7562 Elf_Internal_Shdr *rel_hdr;
7563 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7564 * sizeof (*new_relocs));
7569 memcpy (new_relocs, internal_relocs,
7570 isec->reloc_count * sizeof (*new_relocs));
7571 for (ix = changes; ix--;)
7573 irel = new_relocs + ix + isec->reloc_count;
7575 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7577 if (internal_relocs != elf_section_data (isec)->relocs)
7578 free (internal_relocs);
7579 elf_section_data (isec)->relocs = new_relocs;
7580 isec->reloc_count += changes;
7581 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7582 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
7584 else if (internal_relocs != NULL
7585 && elf_section_data (isec)->relocs != internal_relocs)
7586 free (internal_relocs);
7588 *again = changes != 0 || workaround_change;
7592 while (branch_fixups != NULL)
7594 struct one_branch_fixup *f = branch_fixups;
7595 branch_fixups = branch_fixups->next;
7598 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7600 if (contents != NULL
7601 && elf_section_data (isec)->this_hdr.contents != contents)
7603 if (internal_relocs != NULL
7604 && elf_section_data (isec)->relocs != internal_relocs)
7605 free (internal_relocs);
7609 /* What to do when ld finds relocations against symbols defined in
7610 discarded sections. */
7613 ppc_elf_action_discarded (asection *sec)
7615 if (strcmp (".fixup", sec->name) == 0)
7618 if (strcmp (".got2", sec->name) == 0)
7621 return _bfd_elf_default_action_discarded (sec);
7624 /* Fill in the address for a pointer generated in a linker section. */
7627 elf_finish_pointer_linker_section (bfd *input_bfd,
7628 elf_linker_section_t *lsect,
7629 struct elf_link_hash_entry *h,
7631 const Elf_Internal_Rela *rel)
7633 elf_linker_section_pointers_t *linker_section_ptr;
7635 BFD_ASSERT (lsect != NULL);
7639 /* Handle global symbol. */
7640 struct ppc_elf_link_hash_entry *eh;
7642 eh = (struct ppc_elf_link_hash_entry *) h;
7643 BFD_ASSERT (eh->elf.def_regular);
7644 linker_section_ptr = eh->linker_section_pointer;
7648 /* Handle local symbol. */
7649 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
7651 BFD_ASSERT (is_ppc_elf (input_bfd));
7652 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
7653 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7656 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7659 BFD_ASSERT (linker_section_ptr != NULL);
7661 /* Offset will always be a multiple of four, so use the bottom bit
7662 as a "written" flag. */
7663 if ((linker_section_ptr->offset & 1) == 0)
7665 bfd_put_32 (lsect->section->owner,
7666 relocation + linker_section_ptr->addend,
7667 lsect->section->contents + linker_section_ptr->offset);
7668 linker_section_ptr->offset += 1;
7671 relocation = (lsect->section->output_section->vma
7672 + lsect->section->output_offset
7673 + linker_section_ptr->offset - 1
7674 - SYM_VAL (lsect->sym));
7678 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7679 lsect->name, (long) relocation, (long) relocation);
7685 #define PPC_LO(v) ((v) & 0xffff)
7686 #define PPC_HI(v) (((v) >> 16) & 0xffff)
7687 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
7690 write_glink_stub (struct elf_link_hash_entry *h, struct plt_entry *ent,
7691 asection *plt_sec, unsigned char *p,
7692 struct bfd_link_info *info)
7694 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7695 bfd *output_bfd = info->output_bfd;
7697 unsigned char *end = p + GLINK_ENTRY_SIZE (htab, h);
7700 && h == htab->tls_get_addr
7701 && !htab->params->no_tls_get_addr_opt)
7703 bfd_put_32 (output_bfd, LWZ_11_3, p);
7705 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
7707 bfd_put_32 (output_bfd, MR_0_3, p);
7709 bfd_put_32 (output_bfd, CMPWI_11_0, p);
7711 bfd_put_32 (output_bfd, ADD_3_12_2, p);
7713 bfd_put_32 (output_bfd, BEQLR, p);
7715 bfd_put_32 (output_bfd, MR_3_0, p);
7717 bfd_put_32 (output_bfd, NOP, p);
7721 plt = ((ent->plt.offset & ~1)
7722 + plt_sec->output_section->vma
7723 + plt_sec->output_offset);
7725 if (bfd_link_pic (info))
7729 if (ent->addend >= 32768)
7731 + ent->sec->output_section->vma
7732 + ent->sec->output_offset);
7733 else if (htab->elf.hgot != NULL)
7734 got = SYM_VAL (htab->elf.hgot);
7738 if (plt + 0x8000 < 0x10000)
7739 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7742 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7744 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7749 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7751 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7754 bfd_put_32 (output_bfd, MTCTR_11, p);
7756 bfd_put_32 (output_bfd, BCTR, p);
7760 bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
7765 /* Return true if symbol is defined statically. */
7768 is_static_defined (struct elf_link_hash_entry *h)
7770 return ((h->root.type == bfd_link_hash_defined
7771 || h->root.type == bfd_link_hash_defweak)
7772 && h->root.u.def.section != NULL
7773 && h->root.u.def.section->output_section != NULL);
7776 /* If INSN is an opcode that may be used with an @tls operand, return
7777 the transformed insn for TLS optimisation, otherwise return 0. If
7778 REG is non-zero only match an insn with RB or RA equal to REG. */
7781 _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7785 if ((insn & (0x3f << 26)) != 31 << 26)
7788 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7789 rtra = insn & ((1 << 26) - (1 << 16));
7790 else if (((insn >> 16) & 0x1f) == reg)
7791 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7795 if ((insn & (0x3ff << 1)) == 266 << 1)
7798 else if ((insn & (0x1f << 1)) == 23 << 1
7799 && ((insn & (0x1f << 6)) < 14 << 6
7800 || ((insn & (0x1f << 6)) >= 16 << 6
7801 && (insn & (0x1f << 6)) < 24 << 6)))
7802 /* load and store indexed -> dform. */
7803 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7804 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7805 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7806 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7807 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7809 insn = (58 << 26) | 2;
7816 /* If INSN is an opcode that may be used with an @tprel operand, return
7817 the transformed insn for an undefined weak symbol, ie. with the
7818 thread pointer REG operand removed. Otherwise return 0. */
7821 _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7823 if ((insn & (0x1f << 16)) == reg << 16
7824 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7825 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7826 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7827 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7828 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7829 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7830 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7831 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7832 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7833 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7834 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7835 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7836 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7837 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7838 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7839 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7841 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7842 && ((insn & 3) == 0 || (insn & 3) == 3))))
7844 insn &= ~(0x1f << 16);
7846 else if ((insn & (0x1f << 21)) == reg << 21
7847 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7848 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7849 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7851 insn &= ~(0x1f << 21);
7852 insn |= (insn & (0x1f << 16)) << 5;
7853 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7854 insn -= 2 >> 26; /* convert to ori,oris */
7862 is_insn_ds_form (unsigned int insn)
7864 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7865 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7866 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7867 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7871 is_insn_dq_form (unsigned int insn)
7873 return ((insn & (0x3f << 26)) == 56u << 26 /* lq */
7874 || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
7875 && (insn & 3) == 1));
7878 /* The RELOCATE_SECTION function is called by the ELF backend linker
7879 to handle the relocations for a section.
7881 The relocs are always passed as Rela structures; if the section
7882 actually uses Rel structures, the r_addend field will always be
7885 This function is responsible for adjust the section contents as
7886 necessary, and (if using Rela relocs and generating a
7887 relocatable output file) adjusting the reloc addend as
7890 This function does not have to worry about setting the reloc
7891 address or the reloc symbol index.
7893 LOCAL_SYMS is a pointer to the swapped in local symbols.
7895 LOCAL_SECTIONS is an array giving the section in the input file
7896 corresponding to the st_shndx field of each local symbol.
7898 The global hash table entry for the global symbols can be found
7899 via elf_sym_hashes (input_bfd).
7901 When generating relocatable output, this function must handle
7902 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7903 going to be the section symbol corresponding to the output
7904 section, which means that the addend must be adjusted
7908 ppc_elf_relocate_section (bfd *output_bfd,
7909 struct bfd_link_info *info,
7911 asection *input_section,
7913 Elf_Internal_Rela *relocs,
7914 Elf_Internal_Sym *local_syms,
7915 asection **local_sections)
7917 Elf_Internal_Shdr *symtab_hdr;
7918 struct elf_link_hash_entry **sym_hashes;
7919 struct ppc_elf_link_hash_table *htab;
7920 Elf_Internal_Rela *rel;
7921 Elf_Internal_Rela *wrel;
7922 Elf_Internal_Rela *relend;
7923 Elf_Internal_Rela outrel;
7925 bfd_vma *local_got_offsets;
7926 bfd_boolean ret = TRUE;
7927 bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0);
7928 bfd_boolean is_vxworks_tls;
7929 unsigned int picfixup_size = 0;
7930 struct ppc_elf_relax_info *relax_info = NULL;
7933 _bfd_error_handler ("ppc_elf_relocate_section called for %pB section %pA, "
7934 "%ld relocations%s",
7935 input_bfd, input_section,
7936 (long) input_section->reloc_count,
7937 (bfd_link_relocatable (info)) ? " (relocatable)" : "");
7940 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7942 /* Initialize howto table if not already done. */
7943 if (!ppc_elf_howto_table[R_PPC_ADDR32])
7944 ppc_elf_howto_init ();
7946 htab = ppc_elf_hash_table (info);
7947 local_got_offsets = elf_local_got_offsets (input_bfd);
7948 symtab_hdr = &elf_symtab_hdr (input_bfd);
7949 sym_hashes = elf_sym_hashes (input_bfd);
7950 /* We have to handle relocations in vxworks .tls_vars sections
7951 specially, because the dynamic loader is 'weird'. */
7952 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
7953 && !strcmp (input_section->output_section->name,
7955 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
7956 relax_info = elf_section_data (input_section)->sec_info;
7957 rel = wrel = relocs;
7958 relend = relocs + input_section->reloc_count;
7959 for (; rel < relend; wrel++, rel++)
7961 enum elf_ppc_reloc_type r_type;
7963 bfd_reloc_status_type r;
7964 Elf_Internal_Sym *sym;
7966 struct elf_link_hash_entry *h;
7967 const char *sym_name;
7968 reloc_howto_type *howto;
7969 unsigned long r_symndx;
7971 bfd_vma branch_bit, from;
7972 bfd_boolean unresolved_reloc, save_unresolved_reloc;
7974 unsigned int tls_type, tls_mask, tls_gd;
7975 struct plt_entry **ifunc, **plt_list;
7976 struct reloc_howto_struct alt_howto;
7979 r_type = ELF32_R_TYPE (rel->r_info);
7983 unresolved_reloc = FALSE;
7985 r_symndx = ELF32_R_SYM (rel->r_info);
7987 if (r_symndx < symtab_hdr->sh_info)
7989 sym = local_syms + r_symndx;
7990 sec = local_sections[r_symndx];
7991 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
7993 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
7997 bfd_boolean ignored;
7999 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
8000 r_symndx, symtab_hdr, sym_hashes,
8002 unresolved_reloc, warned, ignored);
8004 sym_name = h->root.root.string;
8007 if (sec != NULL && discarded_section (sec))
8009 /* For relocs against symbols from removed linkonce sections,
8010 or sections discarded by a linker script, we just want the
8011 section contents zeroed. Avoid any special processing. */
8013 if (r_type < R_PPC_max)
8014 howto = ppc_elf_howto_table[r_type];
8016 _bfd_clear_contents (howto, input_bfd, input_section,
8017 contents + rel->r_offset);
8018 wrel->r_offset = rel->r_offset;
8022 /* For ld -r, remove relocations in debug sections against
8023 symbols defined in discarded sections. Not done for
8024 non-debug to preserve relocs in .eh_frame which the
8025 eh_frame editing code expects to be present. */
8026 if (bfd_link_relocatable (info)
8027 && (input_section->flags & SEC_DEBUGGING))
8033 if (bfd_link_relocatable (info))
8036 && r_type == R_PPC_PLTREL24
8037 && rel->r_addend != 0)
8039 /* R_PPC_PLTREL24 is rather special. If non-zero, the
8040 addend specifies the GOT pointer offset within .got2. */
8041 rel->r_addend += got2->output_offset;
8043 if (r_type != R_PPC_RELAX_PLT
8044 && r_type != R_PPC_RELAX_PLTREL24
8045 && r_type != R_PPC_RELAX)
8049 /* TLS optimizations. Replace instruction sequences and relocs
8050 based on information we collected in tls_optimize. We edit
8051 RELOCS so that --emit-relocs will output something sensible
8052 for the final instruction stream. */
8056 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
8057 else if (local_got_offsets != NULL)
8059 struct plt_entry **local_plt;
8062 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
8063 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
8064 tls_mask = lgot_masks[r_symndx];
8067 /* Ensure reloc mapping code below stays sane. */
8068 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
8069 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
8070 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
8071 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
8072 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
8073 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
8074 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
8075 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
8082 case R_PPC_GOT_TPREL16:
8083 case R_PPC_GOT_TPREL16_LO:
8084 if ((tls_mask & TLS_TLS) != 0
8085 && (tls_mask & TLS_TPREL) == 0)
8089 insn = bfd_get_32 (input_bfd,
8090 contents + rel->r_offset - d_offset);
8092 insn |= 0x3c020000; /* addis 0,2,0 */
8093 bfd_put_32 (input_bfd, insn,
8094 contents + rel->r_offset - d_offset);
8095 r_type = R_PPC_TPREL16_HA;
8096 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8101 if ((tls_mask & TLS_TLS) != 0
8102 && (tls_mask & TLS_TPREL) == 0)
8106 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
8107 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
8110 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
8111 r_type = R_PPC_TPREL16_LO;
8112 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8114 /* Was PPC_TLS which sits on insn boundary, now
8115 PPC_TPREL16_LO which is at low-order half-word. */
8116 rel->r_offset += d_offset;
8120 case R_PPC_GOT_TLSGD16_HI:
8121 case R_PPC_GOT_TLSGD16_HA:
8122 tls_gd = TLS_TPRELGD;
8123 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
8127 case R_PPC_GOT_TLSLD16_HI:
8128 case R_PPC_GOT_TLSLD16_HA:
8129 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
8132 if ((tls_mask & tls_gd) != 0)
8133 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
8134 + R_PPC_GOT_TPREL16);
8137 rel->r_offset -= d_offset;
8138 bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
8139 r_type = R_PPC_NONE;
8141 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8145 case R_PPC_GOT_TLSGD16:
8146 case R_PPC_GOT_TLSGD16_LO:
8147 tls_gd = TLS_TPRELGD;
8148 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
8152 case R_PPC_GOT_TLSLD16:
8153 case R_PPC_GOT_TLSLD16_LO:
8154 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
8156 unsigned int insn1, insn2;
8160 offset = (bfd_vma) -1;
8161 /* If not using the newer R_PPC_TLSGD/LD to mark
8162 __tls_get_addr calls, we must trust that the call
8163 stays with its arg setup insns, ie. that the next
8164 reloc is the __tls_get_addr call associated with
8165 the current reloc. Edit both insns. */
8166 if (input_section->has_tls_get_addr_call
8168 && branch_reloc_hash_match (input_bfd, rel + 1,
8169 htab->tls_get_addr))
8170 offset = rel[1].r_offset;
8171 /* We read the low GOT_TLS insn because we need to keep
8172 the destination reg. It may be something other than
8173 the usual r3, and moved to r3 before the call by
8174 intervening code. */
8175 insn1 = bfd_get_32 (input_bfd,
8176 contents + rel->r_offset - d_offset);
8177 if ((tls_mask & tls_gd) != 0)
8180 insn1 &= (0x1f << 21) | (0x1f << 16);
8181 insn1 |= 32 << 26; /* lwz */
8182 if (offset != (bfd_vma) -1)
8184 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
8185 insn2 = 0x7c631214; /* add 3,3,2 */
8186 bfd_put_32 (input_bfd, insn2, contents + offset);
8188 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
8189 + R_PPC_GOT_TPREL16);
8190 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8195 insn1 &= 0x1f << 21;
8196 insn1 |= 0x3c020000; /* addis r,2,0 */
8199 /* Was an LD reloc. */
8201 r_symndx < symtab_hdr->sh_info;
8203 if (local_sections[r_symndx] == sec)
8205 if (r_symndx >= symtab_hdr->sh_info)
8206 r_symndx = STN_UNDEF;
8207 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
8208 if (r_symndx != STN_UNDEF)
8209 rel->r_addend -= (local_syms[r_symndx].st_value
8210 + sec->output_offset
8211 + sec->output_section->vma);
8213 r_type = R_PPC_TPREL16_HA;
8214 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8215 if (offset != (bfd_vma) -1)
8217 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8218 rel[1].r_offset = offset + d_offset;
8219 rel[1].r_addend = rel->r_addend;
8220 insn2 = 0x38630000; /* addi 3,3,0 */
8221 bfd_put_32 (input_bfd, insn2, contents + offset);
8224 bfd_put_32 (input_bfd, insn1,
8225 contents + rel->r_offset - d_offset);
8228 /* We changed the symbol on an LD reloc. Start over
8229 in order to get h, sym, sec etc. right. */
8236 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
8237 && rel + 1 < relend)
8240 bfd_vma offset = rel->r_offset;
8242 if (is_plt_seq_reloc (ELF32_R_TYPE (rel[1].r_info)))
8244 bfd_put_32 (input_bfd, NOP, contents + offset);
8245 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
8249 if ((tls_mask & TLS_TPRELGD) != 0)
8252 r_type = R_PPC_NONE;
8253 insn2 = 0x7c631214; /* add 3,3,2 */
8258 r_type = R_PPC_TPREL16_LO;
8259 rel->r_offset += d_offset;
8260 insn2 = 0x38630000; /* addi 3,3,0 */
8262 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8263 bfd_put_32 (input_bfd, insn2, contents + offset);
8264 /* Zap the reloc on the _tls_get_addr call too. */
8265 BFD_ASSERT (offset == rel[1].r_offset);
8266 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
8271 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
8272 && rel + 1 < relend)
8276 if (is_plt_seq_reloc (ELF32_R_TYPE (rel[1].r_info)))
8278 bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
8279 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
8284 r_symndx < symtab_hdr->sh_info;
8286 if (local_sections[r_symndx] == sec)
8288 if (r_symndx >= symtab_hdr->sh_info)
8289 r_symndx = STN_UNDEF;
8290 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
8291 if (r_symndx != STN_UNDEF)
8292 rel->r_addend -= (local_syms[r_symndx].st_value
8293 + sec->output_offset
8294 + sec->output_section->vma);
8296 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8297 rel->r_offset += d_offset;
8298 insn2 = 0x38630000; /* addi 3,3,0 */
8299 bfd_put_32 (input_bfd, insn2,
8300 contents + rel->r_offset - d_offset);
8301 /* Zap the reloc on the _tls_get_addr call too. */
8302 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
8303 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
8309 /* Handle other relocations that tweak non-addend part of insn. */
8316 /* Branch taken prediction relocations. */
8317 case R_PPC_ADDR14_BRTAKEN:
8318 case R_PPC_REL14_BRTAKEN:
8319 branch_bit = BRANCH_PREDICT_BIT;
8322 /* Branch not taken prediction relocations. */
8323 case R_PPC_ADDR14_BRNTAKEN:
8324 case R_PPC_REL14_BRNTAKEN:
8328 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
8329 insn &= ~BRANCH_PREDICT_BIT;
8332 from = (rel->r_offset
8333 + input_section->output_offset
8334 + input_section->output_section->vma);
8336 /* Invert 'y' bit if not the default. */
8337 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
8338 insn ^= BRANCH_PREDICT_BIT;
8340 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
8344 case R_PPC_PLT16_HA:
8348 insn = bfd_get_32 (input_bfd,
8349 contents + rel->r_offset - d_offset);
8350 if ((insn & (0x3f << 26)) == 15u << 26
8351 && (insn & (0x1f << 16)) != 0)
8353 if (!bfd_link_pic (info))
8355 /* Convert addis to lis. */
8356 insn &= ~(0x1f << 16);
8357 bfd_put_32 (input_bfd, insn,
8358 contents + rel->r_offset - d_offset);
8361 else if (bfd_link_pic (info))
8362 info->callbacks->einfo
8363 (_("%P: %H: error: %s with unexpected instruction %x\n"),
8364 input_bfd, input_section, rel->r_offset,
8365 "R_PPC_PLT16_HA", insn);
8370 if (ELIMINATE_COPY_RELOCS
8374 && ppc_elf_hash_entry (h)->has_addr16_ha
8375 && ppc_elf_hash_entry (h)->has_addr16_lo
8376 && htab->params->pic_fixup > 0)
8378 /* Convert lis;addi or lis;load/store accessing a protected
8379 variable defined in a shared library to PIC. */
8382 if (r_type == R_PPC_ADDR16_HA)
8384 insn = bfd_get_32 (input_bfd,
8385 contents + rel->r_offset - d_offset);
8386 if ((insn & (0x3f << 26)) == (15u << 26)
8387 && (insn & (0x1f << 16)) == 0 /* lis */)
8393 p = (contents + input_section->size
8394 - relax_info->workaround_size
8395 - relax_info->picfixup_size
8397 off = (p - contents) - (rel->r_offset - d_offset);
8398 if (off > 0x1fffffc || (off & 3) != 0)
8399 info->callbacks->einfo
8400 (_("%H: fixup branch overflow\n"),
8401 input_bfd, input_section, rel->r_offset);
8403 bfd_put_32 (input_bfd, B | off,
8404 contents + rel->r_offset - d_offset);
8405 got_addr = (htab->elf.sgot->output_section->vma
8406 + htab->elf.sgot->output_offset
8407 + (h->got.offset & ~1));
8408 wrel->r_offset = (p - contents) + d_offset;
8409 wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
8410 wrel->r_addend = got_addr;
8412 insn |= ((unsigned int) (got_addr + 0x8000) >> 16) & 0xffff;
8413 bfd_put_32 (input_bfd, insn, p);
8415 /* Convert lis to lwz, loading address from GOT. */
8417 insn ^= (32u ^ 15u) << 26;
8418 insn |= (insn & (0x1f << 21)) >> 5;
8419 insn |= got_addr & 0xffff;
8420 bfd_put_32 (input_bfd, insn, p + 4);
8422 bfd_put_32 (input_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
8423 picfixup_size += 12;
8425 /* Use one of the spare relocs, so --emit-relocs
8426 output is reasonable. */
8427 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
8429 rel->r_offset = wrel[-1].r_offset + 4;
8430 rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
8431 rel->r_addend = wrel[-1].r_addend;
8433 /* Continue on as if we had a got reloc, to output
8435 r_type = R_PPC_GOT16_LO;
8439 /* xgettext:c-format */
8440 (_("%pB(%pA+%#" PRIx64 "): error: "
8441 "%s with unexpected instruction %#x"),
8442 input_bfd, input_section, (uint64_t) rel->r_offset,
8443 "R_PPC_ADDR16_HA", insn);
8445 else if (r_type == R_PPC_ADDR16_LO)
8447 insn = bfd_get_32 (input_bfd,
8448 contents + rel->r_offset - d_offset);
8449 if ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8450 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8451 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8452 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8453 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8454 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8455 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8456 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8457 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8458 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8459 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8460 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8461 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8462 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8463 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8465 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8466 && ((insn & 3) == 0 || (insn & 3) == 3)))
8468 /* Arrange to apply the reloc addend, if any. */
8470 unresolved_reloc = FALSE;
8471 rel->r_info = ELF32_R_INFO (0, r_type);
8475 /* xgettext:c-format */
8476 (_("%pB(%pA+%#" PRIx64 "): error: "
8477 "%s with unexpected instruction %#x"),
8478 input_bfd, input_section, (uint64_t) rel->r_offset,
8479 "R_PPC_ADDR16_LO", insn);
8484 if (!htab->is_vxworks)
8486 struct plt_entry *ent;
8490 if (h->type == STT_GNU_IFUNC)
8491 ifunc = &h->plt.plist;
8493 else if (local_got_offsets != NULL
8494 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
8496 struct plt_entry **local_plt;
8498 local_plt = (struct plt_entry **) (local_got_offsets
8499 + symtab_hdr->sh_info);
8500 ifunc = local_plt + r_symndx;
8505 && (!bfd_link_pic (info)
8506 || is_branch_reloc (r_type)
8507 || r_type == R_PPC_PLT16_LO
8508 || r_type == R_PPC_PLT16_HI
8509 || r_type == R_PPC_PLT16_HA))
8512 if (bfd_link_pic (info)
8513 && (r_type == R_PPC_PLTREL24
8514 || r_type == R_PPC_PLT16_LO
8515 || r_type == R_PPC_PLT16_HI
8516 || r_type == R_PPC_PLT16_HA))
8517 addend = rel->r_addend;
8518 ent = find_plt_ent (ifunc, got2, addend);
8522 if (bfd_link_pic (info)
8524 && htab->plt_type != PLT_NEW
8525 && (!htab->elf.dynamic_sections_created
8527 || h->dynindx == -1))
8529 /* Uh oh, we are going to create a pic glink stub
8530 for an ifunc (here for h == NULL and later in
8531 finish_dynamic_symbol for h != NULL), and
8532 apparently are using code compiled with
8533 -mbss-plt. The difficulty is that -mbss-plt code
8534 gives no indication via a magic PLTREL24 addend
8535 whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or
8536 is pointing into a .got2 section (and how far
8538 info->callbacks->einfo
8539 /* xgettext:c-format */
8540 (_("%X%H: unsupported bss-plt -fPIC ifunc %s\n"),
8541 input_bfd, input_section, rel->r_offset, sym_name);
8544 unresolved_reloc = FALSE;
8545 if (htab->plt_type == PLT_NEW
8546 || !htab->elf.dynamic_sections_created
8548 || h->dynindx == -1)
8549 relocation = (htab->glink->output_section->vma
8550 + htab->glink->output_offset
8551 + (ent->glink_offset & ~1));
8553 relocation = (htab->elf.splt->output_section->vma
8554 + htab->elf.splt->output_offset
8559 addend = rel->r_addend;
8560 save_unresolved_reloc = unresolved_reloc;
8562 if (r_type < R_PPC_max)
8563 howto = ppc_elf_howto_table[r_type];
8570 case R_PPC_TPREL16_HA:
8571 if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000)
8573 bfd_byte *p = contents + (rel->r_offset & ~3);
8574 unsigned int insn = bfd_get_32 (input_bfd, p);
8575 if ((insn & ((0x3f << 26) | 0x1f << 16))
8576 != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)
8577 /* xgettext:c-format */
8578 info->callbacks->minfo
8579 (_("%H: warning: %s unexpected insn %#x.\n"),
8580 input_bfd, input_section, rel->r_offset, howto->name, insn);
8582 bfd_put_32 (input_bfd, NOP, p);
8586 case R_PPC_TPREL16_LO:
8587 if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000)
8589 bfd_byte *p = contents + (rel->r_offset & ~3);
8590 unsigned int insn = bfd_get_32 (input_bfd, p);
8591 insn &= ~(0x1f << 16);
8593 bfd_put_32 (input_bfd, insn, p);
8602 /* xgettext:c-format */
8603 _bfd_error_handler (_("%pB: %s unsupported"),
8604 input_bfd, howto->name);
8606 bfd_set_error (bfd_error_bad_value);
8614 case R_PPC_EMB_MRKREF:
8615 case R_PPC_GNU_VTINHERIT:
8616 case R_PPC_GNU_VTENTRY:
8619 /* GOT16 relocations. Like an ADDR16 using the symbol's
8620 address in the GOT as relocation value instead of the
8621 symbol's value itself. Also, create a GOT entry for the
8622 symbol and put the symbol value there. */
8623 case R_PPC_GOT_TLSGD16:
8624 case R_PPC_GOT_TLSGD16_LO:
8625 case R_PPC_GOT_TLSGD16_HI:
8626 case R_PPC_GOT_TLSGD16_HA:
8627 tls_type = TLS_TLS | TLS_GD;
8630 case R_PPC_GOT_TLSLD16:
8631 case R_PPC_GOT_TLSLD16_LO:
8632 case R_PPC_GOT_TLSLD16_HI:
8633 case R_PPC_GOT_TLSLD16_HA:
8634 tls_type = TLS_TLS | TLS_LD;
8637 case R_PPC_GOT_TPREL16:
8638 case R_PPC_GOT_TPREL16_LO:
8639 case R_PPC_GOT_TPREL16_HI:
8640 case R_PPC_GOT_TPREL16_HA:
8641 tls_type = TLS_TLS | TLS_TPREL;
8644 case R_PPC_GOT_DTPREL16:
8645 case R_PPC_GOT_DTPREL16_LO:
8646 case R_PPC_GOT_DTPREL16_HI:
8647 case R_PPC_GOT_DTPREL16_HA:
8648 tls_type = TLS_TLS | TLS_DTPREL;
8652 case R_PPC_GOT16_LO:
8653 case R_PPC_GOT16_HI:
8654 case R_PPC_GOT16_HA:
8658 /* Relocation is to the entry for this symbol in the global
8664 if (htab->elf.sgot == NULL)
8668 if (tls_type == (TLS_TLS | TLS_LD)
8670 || !h->def_dynamic))
8671 offp = &htab->tlsld_got.offset;
8674 if (!htab->elf.dynamic_sections_created
8676 || SYMBOL_REFERENCES_LOCAL (info, h)
8677 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
8678 /* This is actually a static link, or it is a
8679 -Bsymbolic link and the symbol is defined
8680 locally, or the symbol was forced to be local
8681 because of a version file. */
8686 unresolved_reloc = FALSE;
8688 offp = &h->got.offset;
8692 if (local_got_offsets == NULL)
8694 offp = &local_got_offsets[r_symndx];
8697 /* The offset must always be a multiple of 4. We use the
8698 least significant bit to record whether we have already
8699 processed this entry. */
8705 unsigned int tls_m = ((tls_mask & TLS_TLS) != 0
8706 ? tls_mask & (TLS_LD | TLS_GD | TLS_DTPREL
8707 | TLS_TPREL | TLS_TPRELGD)
8710 if (offp == &htab->tlsld_got.offset)
8716 /* We might have multiple got entries for this sym.
8717 Initialize them all. */
8722 if ((tls_m & TLS_LD) != 0)
8724 tls_ty = TLS_TLS | TLS_LD;
8727 else if ((tls_m & TLS_GD) != 0)
8729 tls_ty = TLS_TLS | TLS_GD;
8732 else if ((tls_m & TLS_DTPREL) != 0)
8734 tls_ty = TLS_TLS | TLS_DTPREL;
8735 tls_m &= ~TLS_DTPREL;
8737 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
8739 tls_ty = TLS_TLS | TLS_TPREL;
8743 /* Generate relocs for the dynamic linker. */
8745 || (bfd_link_pic (info)
8747 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)
8748 || offp == &htab->tlsld_got.offset)
8749 && !(tls_ty == (TLS_TLS | TLS_TPREL)
8750 && bfd_link_executable (info)
8751 && SYMBOL_REFERENCES_LOCAL (info, h))))
8753 asection *rsec = htab->elf.srelgot;
8758 rsec = htab->elf.irelplt;
8760 htab->local_ifunc_resolver = 1;
8761 else if (is_static_defined (h))
8762 htab->maybe_local_ifunc_resolver = 1;
8764 outrel.r_offset = (htab->elf.sgot->output_section->vma
8765 + htab->elf.sgot->output_offset
8767 outrel.r_addend = 0;
8768 if (tls_ty & (TLS_LD | TLS_GD))
8770 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
8771 if (tls_ty == (TLS_TLS | TLS_GD))
8773 loc = rsec->contents;
8774 loc += (rsec->reloc_count++
8775 * sizeof (Elf32_External_Rela));
8776 bfd_elf32_swap_reloca_out (output_bfd,
8778 outrel.r_offset += 4;
8780 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8783 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8784 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8785 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8786 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
8788 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
8789 else if (ifunc != NULL)
8790 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8792 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
8793 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
8795 outrel.r_addend += relocation;
8796 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
8798 if (htab->elf.tls_sec == NULL)
8799 outrel.r_addend = 0;
8801 outrel.r_addend -= htab->elf.tls_sec->vma;
8804 loc = rsec->contents;
8805 loc += (rsec->reloc_count++
8806 * sizeof (Elf32_External_Rela));
8807 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
8810 /* Init the .got section contents if we're not
8811 emitting a reloc. */
8814 bfd_vma value = relocation;
8818 if (htab->elf.tls_sec == NULL)
8822 if (tls_ty & TLS_LD)
8825 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
8826 if (tls_ty & TLS_TPREL)
8827 value += DTP_OFFSET - TP_OFFSET;
8830 if (tls_ty & (TLS_LD | TLS_GD))
8832 bfd_put_32 (input_bfd, value,
8833 htab->elf.sgot->contents + off + 4);
8837 bfd_put_32 (input_bfd, value,
8838 htab->elf.sgot->contents + off);
8842 if (tls_ty & (TLS_LD | TLS_GD))
8851 if (off >= (bfd_vma) -2)
8854 if ((tls_type & TLS_TLS) != 0)
8856 if (tls_type != (TLS_TLS | TLS_LD))
8858 if ((tls_mask & TLS_LD) != 0
8860 || !h->def_dynamic))
8862 if (tls_type != (TLS_TLS | TLS_GD))
8864 if ((tls_mask & TLS_GD) != 0)
8866 if (tls_type != (TLS_TLS | TLS_DTPREL))
8868 if ((tls_mask & TLS_DTPREL) != 0)
8875 /* If here for a picfixup, we're done. */
8876 if (r_type != ELF32_R_TYPE (rel->r_info))
8879 relocation = (htab->elf.sgot->output_section->vma
8880 + htab->elf.sgot->output_offset
8882 - SYM_VAL (htab->elf.hgot));
8884 /* Addends on got relocations don't make much sense.
8885 x+off@got is actually x@got+off, and since the got is
8886 generated by a hash table traversal, the value in the
8887 got at entry m+n bears little relation to the entry m. */
8889 info->callbacks->einfo
8890 /* xgettext:c-format */
8891 (_("%H: non-zero addend on %s reloc against `%s'\n"),
8892 input_bfd, input_section, rel->r_offset,
8898 /* Relocations that need no special processing. */
8899 case R_PPC_LOCAL24PC:
8900 /* It makes no sense to point a local relocation
8901 at a symbol not in this object. */
8902 if (unresolved_reloc)
8904 (*info->callbacks->undefined_symbol) (info,
8905 h->root.root.string,
8912 if (h != NULL && h->type == STT_GNU_IFUNC && bfd_link_pic (info))
8914 /* @local on an ifunc does not really make sense since
8915 the ifunc resolver can take you anywhere. More
8916 seriously, calls to ifuncs must go through a plt call
8917 stub, and for pic the plt call stubs uses r30 to
8918 access the PLT. The problem is that a call that is
8919 local won't have the +32k reloc addend trick marking
8920 -fPIC code, so the linker won't know whether r30 is
8921 _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section. */
8922 /* xgettext:c-format */
8923 info->callbacks->einfo (_("%X%H: @local call to ifunc %s\n"),
8924 input_bfd, input_section, rel->r_offset,
8925 h->root.root.string);
8929 case R_PPC_DTPREL16:
8930 case R_PPC_DTPREL16_LO:
8931 case R_PPC_DTPREL16_HI:
8932 case R_PPC_DTPREL16_HA:
8933 if (htab->elf.tls_sec != NULL)
8934 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8937 /* Relocations that may need to be propagated if this is a shared
8940 case R_PPC_TPREL16_LO:
8941 case R_PPC_TPREL16_HI:
8942 case R_PPC_TPREL16_HA:
8944 && h->root.type == bfd_link_hash_undefweak
8945 && h->dynindx == -1)
8947 /* Make this relocation against an undefined weak symbol
8948 resolve to zero. This is really just a tweak, since
8949 code using weak externs ought to check that they are
8950 defined before using them. */
8951 bfd_byte *p = contents + rel->r_offset - d_offset;
8952 unsigned int insn = bfd_get_32 (input_bfd, p);
8953 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8955 bfd_put_32 (input_bfd, insn, p);
8958 if (htab->elf.tls_sec != NULL)
8959 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8960 /* The TPREL16 relocs shouldn't really be used in shared
8961 libs or with non-local symbols as that will result in
8962 DT_TEXTREL being set, but support them anyway. */
8966 if (htab->elf.tls_sec != NULL)
8967 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8970 case R_PPC_DTPREL32:
8971 if (htab->elf.tls_sec != NULL)
8972 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8975 case R_PPC_DTPMOD32:
8981 case R_PPC_REL16_LO:
8982 case R_PPC_REL16_HI:
8983 case R_PPC_REL16_HA:
8984 case R_PPC_REL16DX_HA:
8988 if (h == NULL || h == htab->elf.hgot)
8994 case R_PPC_ADDR16_LO:
8995 case R_PPC_ADDR16_HI:
8996 case R_PPC_ADDR16_HA:
9001 case R_PPC_VLE_REL8:
9002 case R_PPC_VLE_REL15:
9003 case R_PPC_VLE_REL24:
9006 case R_PPC_REL14_BRTAKEN:
9007 case R_PPC_REL14_BRNTAKEN:
9008 /* If these relocations are not to a named symbol, they can be
9009 handled right here, no need to bother the dynamic linker. */
9010 if (SYMBOL_CALLS_LOCAL (info, h)
9011 || h == htab->elf.hgot)
9017 case R_PPC_ADDR14_BRTAKEN:
9018 case R_PPC_ADDR14_BRNTAKEN:
9019 if (h != NULL && !bfd_link_pic (info))
9024 if ((input_section->flags & SEC_ALLOC) == 0
9028 if (bfd_link_pic (info)
9030 || ppc_elf_hash_entry (h)->dyn_relocs != NULL)
9031 && ((h != NULL && pc_dynrelocs (h))
9032 || must_be_dyn_reloc (info, r_type)))
9034 && ppc_elf_hash_entry (h)->dyn_relocs != NULL))
9042 fprintf (stderr, "ppc_elf_relocate_section needs to "
9043 "create relocation for %s\n",
9044 (h && h->root.root.string
9045 ? h->root.root.string : "<unknown>"));
9048 /* When generating a shared object, these relocations
9049 are copied into the output file to be resolved at run
9052 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
9055 if (outrel.r_offset == (bfd_vma) -1
9056 || outrel.r_offset == (bfd_vma) -2)
9057 skip = (int) outrel.r_offset;
9058 outrel.r_offset += (input_section->output_section->vma
9059 + input_section->output_offset);
9062 memset (&outrel, 0, sizeof outrel);
9063 else if (!SYMBOL_REFERENCES_LOCAL (info, h))
9066 BFD_ASSERT (indx != -1);
9067 unresolved_reloc = FALSE;
9068 outrel.r_info = ELF32_R_INFO (indx, r_type);
9069 outrel.r_addend = rel->r_addend;
9073 outrel.r_addend = relocation + rel->r_addend;
9075 if (r_type != R_PPC_ADDR32)
9079 /* If we get here when building a static
9080 executable, then the libc startup function
9081 responsible for applying indirect function
9082 relocations is going to complain about
9084 If we get here when building a dynamic
9085 executable, it will be because we have
9086 a text relocation. The dynamic loader
9087 will set the text segment writable and
9088 non-executable to apply text relocations.
9089 So we'll segfault when trying to run the
9090 indirection function to resolve the reloc. */
9091 info->callbacks->einfo
9092 /* xgettext:c-format */
9093 (_("%H: relocation %s for indirect "
9094 "function %s unsupported\n"),
9095 input_bfd, input_section, rel->r_offset,
9100 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
9102 else if (sec == NULL || sec->owner == NULL)
9104 bfd_set_error (bfd_error_bad_value);
9111 /* We are turning this relocation into one
9112 against a section symbol. It would be
9113 proper to subtract the symbol's value,
9114 osec->vma, from the emitted reloc addend,
9115 but ld.so expects buggy relocs.
9116 FIXME: Why not always use a zero index? */
9117 osec = sec->output_section;
9118 indx = elf_section_data (osec)->dynindx;
9121 osec = htab->elf.text_index_section;
9122 indx = elf_section_data (osec)->dynindx;
9124 BFD_ASSERT (indx != 0);
9127 printf ("indx=%ld section=%s flags=%08x name=%s\n",
9128 indx, osec->name, osec->flags,
9129 h->root.root.string);
9133 outrel.r_info = ELF32_R_INFO (indx, r_type);
9135 else if (ifunc != NULL)
9136 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
9138 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
9141 sreloc = elf_section_data (input_section)->sreloc;
9144 sreloc = htab->elf.irelplt;
9146 htab->local_ifunc_resolver = 1;
9147 else if (is_static_defined (h))
9148 htab->maybe_local_ifunc_resolver = 1;
9153 loc = sreloc->contents;
9154 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
9155 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
9160 /* This reloc will be computed at runtime. Clear the memory
9161 so that it contains a predictable value for prelink. */
9164 relocation = howto->pc_relative ? outrel.r_offset : 0;
9171 case R_PPC_RELAX_PLT:
9172 case R_PPC_RELAX_PLTREL24:
9175 struct plt_entry *ent;
9176 bfd_vma got2_addend = 0;
9178 if (r_type == R_PPC_RELAX_PLTREL24)
9180 if (bfd_link_pic (info))
9181 got2_addend = addend;
9184 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
9185 if (htab->plt_type == PLT_NEW)
9186 relocation = (htab->glink->output_section->vma
9187 + htab->glink->output_offset
9188 + ent->glink_offset);
9190 relocation = (htab->elf.splt->output_section->vma
9191 + htab->elf.splt->output_offset
9200 size_t insn_offset = rel->r_offset;
9203 if (bfd_link_pic (info))
9205 relocation -= (input_section->output_section->vma
9206 + input_section->output_offset
9207 + rel->r_offset - 4);
9208 stub = shared_stub_entry;
9209 bfd_put_32 (input_bfd, stub[0], contents + insn_offset - 12);
9210 bfd_put_32 (input_bfd, stub[1], contents + insn_offset - 8);
9211 bfd_put_32 (input_bfd, stub[2], contents + insn_offset - 4);
9213 size = ARRAY_SIZE (shared_stub_entry) - 3;
9218 size = ARRAY_SIZE (stub_entry);
9221 relocation += addend;
9222 if (bfd_link_relocatable (info))
9225 /* First insn is HA, second is LO. */
9227 insn |= ((relocation + 0x8000) >> 16) & 0xffff;
9228 bfd_put_32 (input_bfd, insn, contents + insn_offset);
9232 insn |= relocation & 0xffff;
9233 bfd_put_32 (input_bfd, insn, contents + insn_offset);
9241 bfd_put_32 (input_bfd, insn, contents + insn_offset);
9245 /* Rewrite the reloc and convert one of the trailing nop
9246 relocs to describe this relocation. */
9247 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
9248 /* The relocs are at the bottom 2 bytes */
9249 wrel->r_offset = rel->r_offset + d_offset;
9250 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
9251 wrel->r_addend = rel->r_addend;
9252 memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel));
9254 wrel->r_offset += 4;
9255 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
9259 /* Indirect .sdata relocation. */
9260 case R_PPC_EMB_SDAI16:
9261 BFD_ASSERT (htab->sdata[0].section != NULL);
9262 if (!is_static_defined (htab->sdata[0].sym))
9264 unresolved_reloc = TRUE;
9268 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
9269 h, relocation, rel);
9273 /* Indirect .sdata2 relocation. */
9274 case R_PPC_EMB_SDA2I16:
9275 BFD_ASSERT (htab->sdata[1].section != NULL);
9276 if (!is_static_defined (htab->sdata[1].sym))
9278 unresolved_reloc = TRUE;
9282 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
9283 h, relocation, rel);
9287 /* Handle the TOC16 reloc. We want to use the offset within the .got
9288 section, not the actual VMA. This is appropriate when generating
9289 an embedded ELF object, for which the .got section acts like the
9290 AIX .toc section. */
9291 case R_PPC_TOC16: /* phony GOT16 relocations */
9292 if (sec == NULL || sec->output_section == NULL)
9294 unresolved_reloc = TRUE;
9297 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
9299 || strcmp (bfd_get_section_name (sec->owner, sec),
9302 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
9305 case R_PPC_PLTREL24:
9306 if (h != NULL && ifunc == NULL)
9308 struct plt_entry *ent;
9310 ent = find_plt_ent (&h->plt.plist, got2,
9311 bfd_link_pic (info) ? addend : 0);
9313 || htab->elf.splt == NULL)
9315 /* We didn't make a PLT entry for this symbol. This
9316 happens when statically linking PIC code, or when
9317 using -Bsymbolic. */
9321 /* Relocation is to the entry for this symbol in the
9322 procedure linkage table. */
9323 unresolved_reloc = FALSE;
9324 if (htab->plt_type == PLT_NEW)
9325 relocation = (htab->glink->output_section->vma
9326 + htab->glink->output_offset
9327 + ent->glink_offset);
9329 relocation = (htab->elf.splt->output_section->vma
9330 + htab->elf.splt->output_offset
9335 /* R_PPC_PLTREL24 is rather special. If non-zero, the
9336 addend specifies the GOT pointer offset within .got2.
9337 Don't apply it to the relocation field. */
9343 case R_PPC_PLT16_LO:
9344 case R_PPC_PLT16_HI:
9345 case R_PPC_PLT16_HA:
9348 plt_list = &h->plt.plist;
9349 else if (ifunc != NULL)
9351 else if (local_got_offsets != NULL)
9353 struct plt_entry **local_plt;
9354 local_plt = (struct plt_entry **) (local_got_offsets
9355 + symtab_hdr->sh_info);
9356 plt_list = local_plt + r_symndx;
9358 unresolved_reloc = TRUE;
9359 if (plt_list != NULL)
9361 struct plt_entry *ent;
9363 ent = find_plt_ent (plt_list, got2,
9364 bfd_link_pic (info) ? addend : 0);
9365 if (ent != NULL && ent->plt.offset != (bfd_vma) -1)
9369 unresolved_reloc = FALSE;
9370 plt = htab->elf.splt;
9371 if (!htab->elf.dynamic_sections_created
9373 || h->dynindx == -1)
9376 plt = htab->elf.iplt;
9378 plt = htab->pltlocal;
9380 relocation = (plt->output_section->vma
9381 + plt->output_offset
9383 if (bfd_link_pic (info))
9387 if (ent->addend >= 32768)
9389 + ent->sec->output_section->vma
9390 + ent->sec->output_offset);
9392 got = SYM_VAL (htab->elf.hgot);
9400 /* Relocate against _SDA_BASE_. */
9401 case R_PPC_SDAREL16:
9404 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
9407 || sec->output_section == NULL
9408 || !is_static_defined (sda))
9410 unresolved_reloc = TRUE;
9413 addend -= SYM_VAL (sda);
9415 name = bfd_get_section_name (output_bfd, sec->output_section);
9416 if (!(strcmp (name, ".sdata") == 0
9417 || strcmp (name, ".sbss") == 0))
9420 /* xgettext:c-format */
9421 (_("%pB: the target (%s) of a %s relocation is "
9422 "in the wrong output section (%s)"),
9431 /* Relocate against _SDA2_BASE_. */
9432 case R_PPC_EMB_SDA2REL:
9435 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
9438 || sec->output_section == NULL
9439 || !is_static_defined (sda))
9441 unresolved_reloc = TRUE;
9444 addend -= SYM_VAL (sda);
9446 name = bfd_get_section_name (output_bfd, sec->output_section);
9447 if (!(strcmp (name, ".sdata2") == 0
9448 || strcmp (name, ".sbss2") == 0))
9451 /* xgettext:c-format */
9452 (_("%pB: the target (%s) of a %s relocation is "
9453 "in the wrong output section (%s)"),
9462 case R_PPC_VLE_LO16A:
9463 relocation = relocation + addend;
9464 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9465 contents + rel->r_offset, relocation,
9466 split16a_type, htab->params->vle_reloc_fixup);
9469 case R_PPC_VLE_LO16D:
9470 relocation = relocation + addend;
9471 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9472 contents + rel->r_offset, relocation,
9473 split16d_type, htab->params->vle_reloc_fixup);
9476 case R_PPC_VLE_HI16A:
9477 relocation = (relocation + addend) >> 16;
9478 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9479 contents + rel->r_offset, relocation,
9480 split16a_type, htab->params->vle_reloc_fixup);
9483 case R_PPC_VLE_HI16D:
9484 relocation = (relocation + addend) >> 16;
9485 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9486 contents + rel->r_offset, relocation,
9487 split16d_type, htab->params->vle_reloc_fixup);
9490 case R_PPC_VLE_HA16A:
9491 relocation = (relocation + addend + 0x8000) >> 16;
9492 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9493 contents + rel->r_offset, relocation,
9494 split16a_type, htab->params->vle_reloc_fixup);
9497 case R_PPC_VLE_HA16D:
9498 relocation = (relocation + addend + 0x8000) >> 16;
9499 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9500 contents + rel->r_offset, relocation,
9501 split16d_type, htab->params->vle_reloc_fixup);
9504 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
9505 case R_PPC_EMB_SDA21:
9506 case R_PPC_VLE_SDA21:
9507 case R_PPC_EMB_RELSDA:
9508 case R_PPC_VLE_SDA21_LO:
9513 struct elf_link_hash_entry *sda = NULL;
9515 if (sec == NULL || sec->output_section == NULL)
9517 unresolved_reloc = TRUE;
9521 name = bfd_get_section_name (output_bfd, sec->output_section);
9522 if (strcmp (name, ".sdata") == 0
9523 || strcmp (name, ".sbss") == 0)
9526 sda = htab->sdata[0].sym;
9528 else if (strcmp (name, ".sdata2") == 0
9529 || strcmp (name, ".sbss2") == 0)
9532 sda = htab->sdata[1].sym;
9534 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
9535 || strcmp (name, ".PPC.EMB.sbss0") == 0)
9542 /* xgettext:c-format */
9543 (_("%pB: the target (%s) of a %s relocation is "
9544 "in the wrong output section (%s)"),
9550 bfd_set_error (bfd_error_bad_value);
9557 if (!is_static_defined (sda))
9559 unresolved_reloc = TRUE;
9562 addend -= SYM_VAL (sda);
9565 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
9567 && (r_type == R_PPC_VLE_SDA21
9568 || r_type == R_PPC_VLE_SDA21_LO))
9570 relocation = relocation + addend;
9573 /* Force e_li insn, keeping RT from original insn. */
9577 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
9578 /* Top 4 bits of value to 17..20. */
9579 insn |= (relocation & 0xf0000) >> 5;
9580 /* Next 5 bits of the value to 11..15. */
9581 insn |= (relocation & 0xf800) << 5;
9582 /* And the final 11 bits of the value to bits 21 to 31. */
9583 insn |= relocation & 0x7ff;
9585 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
9587 if (r_type == R_PPC_VLE_SDA21
9588 && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
9592 else if (r_type == R_PPC_EMB_SDA21
9593 || r_type == R_PPC_VLE_SDA21
9594 || r_type == R_PPC_VLE_SDA21_LO)
9596 /* Fill in register field. */
9597 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
9599 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
9603 case R_PPC_VLE_SDAREL_LO16A:
9604 case R_PPC_VLE_SDAREL_LO16D:
9605 case R_PPC_VLE_SDAREL_HI16A:
9606 case R_PPC_VLE_SDAREL_HI16D:
9607 case R_PPC_VLE_SDAREL_HA16A:
9608 case R_PPC_VLE_SDAREL_HA16D:
9612 struct elf_link_hash_entry *sda = NULL;
9614 if (sec == NULL || sec->output_section == NULL)
9616 unresolved_reloc = TRUE;
9620 name = bfd_get_section_name (output_bfd, sec->output_section);
9621 if (strcmp (name, ".sdata") == 0
9622 || strcmp (name, ".sbss") == 0)
9623 sda = htab->sdata[0].sym;
9624 else if (strcmp (name, ".sdata2") == 0
9625 || strcmp (name, ".sbss2") == 0)
9626 sda = htab->sdata[1].sym;
9630 /* xgettext:c-format */
9631 (_("%pB: the target (%s) of a %s relocation is "
9632 "in the wrong output section (%s)"),
9638 bfd_set_error (bfd_error_bad_value);
9643 if (sda == NULL || !is_static_defined (sda))
9645 unresolved_reloc = TRUE;
9648 value = relocation + addend - SYM_VAL (sda);
9650 if (r_type == R_PPC_VLE_SDAREL_LO16A)
9651 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9652 contents + rel->r_offset, value,
9654 htab->params->vle_reloc_fixup);
9655 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
9656 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9657 contents + rel->r_offset, value,
9659 htab->params->vle_reloc_fixup);
9660 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
9662 value = value >> 16;
9663 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9664 contents + rel->r_offset, value,
9666 htab->params->vle_reloc_fixup);
9668 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
9670 value = value >> 16;
9671 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9672 contents + rel->r_offset, value,
9674 htab->params->vle_reloc_fixup);
9676 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
9678 value = (value + 0x8000) >> 16;
9679 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9680 contents + rel->r_offset, value,
9682 htab->params->vle_reloc_fixup);
9684 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
9686 value = (value + 0x8000) >> 16;
9687 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9688 contents + rel->r_offset, value,
9690 htab->params->vle_reloc_fixup);
9695 case R_PPC_VLE_ADDR20:
9696 ppc_elf_vle_split20 (output_bfd, contents + rel->r_offset, relocation);
9699 /* Relocate against the beginning of the section. */
9701 case R_PPC_SECTOFF_LO:
9702 case R_PPC_SECTOFF_HI:
9703 case R_PPC_SECTOFF_HA:
9704 if (sec == NULL || sec->output_section == NULL)
9706 unresolved_reloc = TRUE;
9709 addend -= sec->output_section->vma;
9712 /* Negative relocations. */
9713 case R_PPC_EMB_NADDR32:
9714 case R_PPC_EMB_NADDR16:
9715 case R_PPC_EMB_NADDR16_LO:
9716 case R_PPC_EMB_NADDR16_HI:
9717 case R_PPC_EMB_NADDR16_HA:
9718 addend -= 2 * relocation;
9722 case R_PPC_GLOB_DAT:
9723 case R_PPC_JMP_SLOT:
9724 case R_PPC_RELATIVE:
9725 case R_PPC_IRELATIVE:
9727 case R_PPC_PLTREL32:
9729 case R_PPC_EMB_RELSEC16:
9730 case R_PPC_EMB_RELST_LO:
9731 case R_PPC_EMB_RELST_HI:
9732 case R_PPC_EMB_RELST_HA:
9733 case R_PPC_EMB_BIT_FLD:
9734 /* xgettext:c-format */
9735 _bfd_error_handler (_("%pB: %s unsupported"),
9736 input_bfd, howto->name);
9738 bfd_set_error (bfd_error_invalid_operation);
9749 if (unresolved_reloc)
9751 bfd_byte *p = contents + rel->r_offset;
9752 unsigned int insn = bfd_get_32 (input_bfd, p);
9754 bfd_put_32 (input_bfd, B | insn, p);
9755 unresolved_reloc = save_unresolved_reloc;
9756 r_type = R_PPC_REL24;
9757 howto = ppc_elf_howto_table[r_type];
9759 else if (htab->plt_type != PLT_NEW)
9760 info->callbacks->einfo
9761 (_("%P: %H: %s relocation unsupported for bss-plt\n"),
9762 input_bfd, input_section, rel->r_offset,
9767 case R_PPC_PLT16_HA:
9768 case R_PPC_PLT16_LO:
9769 if (unresolved_reloc)
9771 bfd_byte *p = contents + (rel->r_offset & ~3);
9772 bfd_put_32 (input_bfd, NOP, p);
9773 unresolved_reloc = FALSE;
9774 r_type = R_PPC_NONE;
9775 howto = ppc_elf_howto_table[r_type];
9777 else if (htab->plt_type != PLT_NEW)
9778 info->callbacks->einfo
9779 (_("%P: %H: %s relocation unsupported for bss-plt\n"),
9780 input_bfd, input_section, rel->r_offset,
9785 /* Do any further special processing. */
9791 case R_PPC_ADDR16_HA:
9792 case R_PPC_REL16_HA:
9793 case R_PPC_REL16DX_HA:
9794 case R_PPC_SECTOFF_HA:
9795 case R_PPC_TPREL16_HA:
9796 case R_PPC_DTPREL16_HA:
9797 case R_PPC_EMB_NADDR16_HA:
9798 case R_PPC_EMB_RELST_HA:
9799 /* It's just possible that this symbol is a weak symbol
9800 that's not actually defined anywhere. In that case,
9801 'sec' would be NULL, and we should leave the symbol
9802 alone (it will be set to zero elsewhere in the link). */
9807 case R_PPC_PLT16_HA:
9808 case R_PPC_GOT16_HA:
9809 case R_PPC_GOT_TLSGD16_HA:
9810 case R_PPC_GOT_TLSLD16_HA:
9811 case R_PPC_GOT_TPREL16_HA:
9812 case R_PPC_GOT_DTPREL16_HA:
9813 /* Add 0x10000 if sign bit in 0:15 is set.
9814 Bits 0:15 are not used. */
9819 case R_PPC_ADDR16_LO:
9821 case R_PPC_GOT16_LO:
9822 case R_PPC_SDAREL16:
9824 case R_PPC_SECTOFF_LO:
9825 case R_PPC_DTPREL16:
9826 case R_PPC_DTPREL16_LO:
9828 case R_PPC_TPREL16_LO:
9829 case R_PPC_GOT_TLSGD16:
9830 case R_PPC_GOT_TLSGD16_LO:
9831 case R_PPC_GOT_TLSLD16:
9832 case R_PPC_GOT_TLSLD16_LO:
9833 case R_PPC_GOT_DTPREL16:
9834 case R_PPC_GOT_DTPREL16_LO:
9835 case R_PPC_GOT_TPREL16:
9836 case R_PPC_GOT_TPREL16_LO:
9838 /* The 32-bit ABI lacks proper relocations to deal with
9839 certain 64-bit instructions. Prevent damage to bits
9840 that make up part of the insn opcode. */
9841 unsigned int insn, mask, lobit;
9843 insn = bfd_get_32 (input_bfd,
9844 contents + rel->r_offset - d_offset);
9846 if (is_insn_ds_form (insn))
9848 else if (is_insn_dq_form (insn))
9852 relocation += addend;
9853 addend = insn & mask;
9854 lobit = mask & relocation;
9857 relocation ^= lobit;
9858 info->callbacks->einfo
9859 /* xgettext:c-format */
9860 (_("%H: error: %s against `%s' not a multiple of %u\n"),
9861 input_bfd, input_section, rel->r_offset,
9862 howto->name, sym_name, mask + 1);
9863 bfd_set_error (bfd_error_bad_value);
9871 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
9872 "offset = %ld, addend = %ld\n",
9877 (long) rel->r_offset,
9881 if (unresolved_reloc
9882 && !((input_section->flags & SEC_DEBUGGING) != 0
9884 && _bfd_elf_section_offset (output_bfd, info, input_section,
9885 rel->r_offset) != (bfd_vma) -1)
9887 info->callbacks->einfo
9888 /* xgettext:c-format */
9889 (_("%H: unresolvable %s relocation against symbol `%s'\n"),
9890 input_bfd, input_section, rel->r_offset,
9896 /* 16-bit fields in insns mostly have signed values, but a
9897 few insns have 16-bit unsigned values. Really, we should
9898 have different reloc types. */
9899 if (howto->complain_on_overflow != complain_overflow_dont
9900 && howto->dst_mask == 0xffff
9901 && (input_section->flags & SEC_CODE) != 0)
9903 enum complain_overflow complain = complain_overflow_signed;
9905 if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
9909 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
9910 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
9911 complain = complain_overflow_bitfield;
9912 else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
9913 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
9914 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
9915 complain = complain_overflow_unsigned;
9917 if (howto->complain_on_overflow != complain)
9920 alt_howto.complain_on_overflow = complain;
9925 if (r_type == R_PPC_REL16DX_HA)
9927 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
9928 if (rel->r_offset + 4 > input_section->size)
9929 r = bfd_reloc_outofrange;
9934 relocation += addend;
9935 relocation -= (rel->r_offset
9936 + input_section->output_offset
9937 + input_section->output_section->vma);
9939 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
9941 insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
9942 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
9947 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
9948 rel->r_offset, relocation, addend);
9950 if (r != bfd_reloc_ok)
9952 if (r == bfd_reloc_overflow)
9955 /* On code like "if (foo) foo();" don't report overflow
9956 on a branch to zero when foo is undefined. */
9959 && (h->root.type == bfd_link_hash_undefweak
9960 || h->root.type == bfd_link_hash_undefined)
9961 && is_branch_reloc (r_type)))
9962 info->callbacks->reloc_overflow
9963 (info, (h ? &h->root : NULL), sym_name, howto->name,
9964 rel->r_addend, input_bfd, input_section, rel->r_offset);
9968 info->callbacks->einfo
9969 /* xgettext:c-format */
9970 (_("%H: %s reloc against `%s': error %d\n"),
9971 input_bfd, input_section, rel->r_offset,
9972 howto->name, sym_name, (int) r);
9983 Elf_Internal_Shdr *rel_hdr;
9984 size_t deleted = rel - wrel;
9986 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
9987 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9988 if (rel_hdr->sh_size == 0)
9990 /* It is too late to remove an empty reloc section. Leave
9992 ??? What is wrong with an empty section??? */
9993 rel_hdr->sh_size = rel_hdr->sh_entsize;
9998 rel_hdr = _bfd_elf_single_rel_hdr (input_section);
9999 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
10000 input_section->reloc_count -= deleted;
10004 fprintf (stderr, "\n");
10007 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
10008 && input_section->size != input_section->rawsize
10009 && (strcmp (input_section->output_section->name, ".init") == 0
10010 || strcmp (input_section->output_section->name, ".fini") == 0))
10012 /* Branch around the trampolines. */
10013 unsigned int insn = B + input_section->size - input_section->rawsize;
10014 bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
10017 if (htab->params->ppc476_workaround
10018 && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
10019 && (!bfd_link_relocatable (info)
10020 || (input_section->output_section->alignment_power
10021 >= htab->params->pagesize_p2)))
10023 bfd_vma start_addr, end_addr, addr;
10024 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
10026 if (relax_info->workaround_size != 0)
10032 bfd_put_32 (input_bfd, BA, fill);
10033 p = contents + input_section->size - relax_info->workaround_size;
10034 n = relax_info->workaround_size >> 2;
10037 memcpy (p, fill, 4);
10042 /* The idea is: Replace the last instruction on a page with a
10043 branch to a patch area. Put the insn there followed by a
10044 branch back to the next page. Complicated a little by
10045 needing to handle moved conditional branches, and by not
10046 wanting to touch data-in-text. */
10048 start_addr = (input_section->output_section->vma
10049 + input_section->output_offset);
10050 end_addr = (start_addr + input_section->size
10051 - relax_info->workaround_size);
10052 for (addr = ((start_addr & -pagesize) + pagesize - 4);
10056 bfd_vma offset = addr - start_addr;
10057 Elf_Internal_Rela *lo, *hi;
10058 bfd_boolean is_data;
10059 bfd_vma patch_off, patch_addr;
10062 /* Do we have a data reloc at this offset? If so, leave
10070 rel = lo + (hi - lo) / 2;
10071 if (rel->r_offset < offset)
10073 else if (rel->r_offset > offset + 3)
10077 switch (ELF32_R_TYPE (rel->r_info))
10080 case R_PPC_UADDR32:
10094 /* Some instructions can be left alone too. Unconditional
10095 branches, except for bcctr with BO=0x14 (bctr, bctrl),
10096 avoid the icache failure.
10098 The problem occurs due to prefetch across a page boundary
10099 where stale instructions can be fetched from the next
10100 page, and the mechanism for flushing these bad
10101 instructions fails under certain circumstances. The
10102 unconditional branches:
10103 1) Branch: b, bl, ba, bla,
10104 2) Branch Conditional: bc, bca, bcl, bcla,
10105 3) Branch Conditional to Link Register: bclr, bclrl,
10106 where (2) and (3) have BO=0x14 making them unconditional,
10107 prevent the bad prefetch because the prefetch itself is
10108 affected by these instructions. This happens even if the
10109 instruction is not executed.
10113 . lis 9,new_page@ha
10114 . addi 9,9,new_page@l
10121 The bctr is not predicted taken due to ctr not being
10122 ready, so prefetch continues on past the bctr into the
10123 new page which might have stale instructions. If they
10124 fail to be flushed, then they will be executed after the
10125 bctr executes. Either of the following modifications
10126 prevent the bad prefetch from happening in the first
10129 . lis 9,new_page@ha lis 9,new_page@ha
10130 . addi 9,9,new_page@l addi 9,9,new_page@l
10133 . nop b somewhere_else
10134 . b somewhere_else nop
10135 . new_page: new_page:
10137 insn = bfd_get_32 (input_bfd, contents + offset);
10138 if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */
10139 || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/
10140 && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */
10141 || ((insn & (0x3f << 26)) == (19u << 26)
10142 && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */
10143 && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */
10146 patch_addr = (start_addr + input_section->size
10147 - relax_info->workaround_size);
10148 patch_addr = (patch_addr + 15) & -16;
10149 patch_off = patch_addr - start_addr;
10150 bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
10153 && rel->r_offset >= offset
10154 && rel->r_offset < offset + 4)
10158 /* If the insn we are patching had a reloc, adjust the
10159 reloc r_offset so that the reloc applies to the moved
10160 location. This matters for -r and --emit-relocs. */
10161 if (rel + 1 != relend)
10163 Elf_Internal_Rela tmp = *rel;
10165 /* Keep the relocs sorted by r_offset. */
10166 memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
10169 relend[-1].r_offset += patch_off - offset;
10171 /* Adjust REL16 addends too. */
10172 switch (ELF32_R_TYPE (relend[-1].r_info))
10175 case R_PPC_REL16_LO:
10176 case R_PPC_REL16_HI:
10177 case R_PPC_REL16_HA:
10178 relend[-1].r_addend += patch_off - offset;
10184 /* If we are building a PIE or shared library with
10185 non-PIC objects, perhaps we had a dynamic reloc too?
10186 If so, the dynamic reloc must move with the insn. */
10187 sreloc = elf_section_data (input_section)->sreloc;
10188 if (sreloc != NULL)
10190 Elf32_External_Rela *slo, *shi, *srelend;
10193 slo = (Elf32_External_Rela *) sreloc->contents;
10194 shi = srelend = slo + sreloc->reloc_count;
10195 soffset = (offset + input_section->output_section->vma
10196 + input_section->output_offset);
10199 Elf32_External_Rela *srel = slo + (shi - slo) / 2;
10200 bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
10202 if (outrel.r_offset < soffset)
10204 else if (outrel.r_offset > soffset + 3)
10208 if (srel + 1 != srelend)
10210 memmove (srel, srel + 1,
10211 (srelend - (srel + 1)) * sizeof (*srel));
10212 srel = srelend - 1;
10214 outrel.r_offset += patch_off - offset;
10215 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
10216 (bfd_byte *) srel);
10225 if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
10226 && (insn & 2) == 0 /* relative */)
10228 bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
10230 delta += offset - patch_off;
10231 if (bfd_link_relocatable (info) && rel != NULL)
10233 if (!bfd_link_relocatable (info) && rel != NULL)
10235 enum elf_ppc_reloc_type r_type;
10237 r_type = ELF32_R_TYPE (relend[-1].r_info);
10238 if (r_type == R_PPC_REL14_BRTAKEN)
10239 insn |= BRANCH_PREDICT_BIT;
10240 else if (r_type == R_PPC_REL14_BRNTAKEN)
10241 insn &= ~BRANCH_PREDICT_BIT;
10243 BFD_ASSERT (r_type == R_PPC_REL14);
10245 if ((r_type == R_PPC_REL14_BRTAKEN
10246 || r_type == R_PPC_REL14_BRNTAKEN)
10247 && delta + 0x8000 < 0x10000
10248 && (bfd_signed_vma) delta < 0)
10249 insn ^= BRANCH_PREDICT_BIT;
10251 if (delta + 0x8000 < 0x10000)
10253 bfd_put_32 (input_bfd,
10254 (insn & ~0xfffc) | (delta & 0xfffc),
10255 contents + patch_off);
10257 bfd_put_32 (input_bfd,
10258 B | ((offset + 4 - patch_off) & 0x3fffffc),
10259 contents + patch_off);
10266 unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
10268 relend[-1].r_offset += 8;
10269 relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
10271 bfd_put_32 (input_bfd,
10272 (insn & ~0xfffc) | 8,
10273 contents + patch_off);
10275 bfd_put_32 (input_bfd,
10276 B | ((offset + 4 - patch_off) & 0x3fffffc),
10277 contents + patch_off);
10279 bfd_put_32 (input_bfd,
10280 B | ((delta - 8) & 0x3fffffc),
10281 contents + patch_off);
10287 bfd_put_32 (input_bfd, insn, contents + patch_off);
10289 bfd_put_32 (input_bfd,
10290 B | ((offset + 4 - patch_off) & 0x3fffffc),
10291 contents + patch_off);
10294 BFD_ASSERT (patch_off <= input_section->size);
10295 relax_info->workaround_size = input_section->size - patch_off;
10302 /* Write out the PLT relocs and entries for H. */
10305 write_global_sym_plt (struct elf_link_hash_entry *h, void *inf)
10307 struct bfd_link_info *info = (struct bfd_link_info *) inf;
10308 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10309 struct plt_entry *ent;
10310 bfd_boolean doneone;
10313 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
10314 if (ent->plt.offset != (bfd_vma) -1)
10318 Elf_Internal_Rela rela;
10320 bfd_vma reloc_index;
10321 asection *plt = htab->elf.splt;
10322 asection *relplt = htab->elf.srelplt;
10324 if (htab->plt_type == PLT_NEW
10325 || !htab->elf.dynamic_sections_created
10326 || h->dynindx == -1)
10327 reloc_index = ent->plt.offset / 4;
10330 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
10331 / htab->plt_slot_size);
10332 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
10333 && htab->plt_type == PLT_OLD)
10334 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
10337 /* This symbol has an entry in the procedure linkage table.
10339 if (htab->plt_type == PLT_VXWORKS
10340 && htab->elf.dynamic_sections_created
10341 && h->dynindx != -1)
10343 bfd_vma got_offset;
10344 const bfd_vma *plt_entry;
10346 /* The first three entries in .got.plt are reserved. */
10347 got_offset = (reloc_index + 3) * 4;
10349 /* Use the right PLT. */
10350 plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry
10351 : ppc_elf_vxworks_plt_entry;
10353 /* Fill in the .plt on VxWorks. */
10354 if (bfd_link_pic (info))
10356 bfd_put_32 (info->output_bfd,
10357 plt_entry[0] | PPC_HA (got_offset),
10358 plt->contents + ent->plt.offset + 0);
10359 bfd_put_32 (info->output_bfd,
10360 plt_entry[1] | PPC_LO (got_offset),
10361 plt->contents + ent->plt.offset + 4);
10365 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
10367 bfd_put_32 (info->output_bfd,
10368 plt_entry[0] | PPC_HA (got_loc),
10369 plt->contents + ent->plt.offset + 0);
10370 bfd_put_32 (info->output_bfd,
10371 plt_entry[1] | PPC_LO (got_loc),
10372 plt->contents + ent->plt.offset + 4);
10375 bfd_put_32 (info->output_bfd, plt_entry[2],
10376 plt->contents + ent->plt.offset + 8);
10377 bfd_put_32 (info->output_bfd, plt_entry[3],
10378 plt->contents + ent->plt.offset + 12);
10380 /* This instruction is an immediate load. The value loaded is
10381 the byte offset of the R_PPC_JMP_SLOT relocation from the
10382 start of the .rela.plt section. The value is stored in the
10383 low-order 16 bits of the load instruction. */
10384 /* NOTE: It appears that this is now an index rather than a
10385 prescaled offset. */
10386 bfd_put_32 (info->output_bfd,
10387 plt_entry[4] | reloc_index,
10388 plt->contents + ent->plt.offset + 16);
10389 /* This instruction is a PC-relative branch whose target is
10390 the start of the PLT section. The address of this branch
10391 instruction is 20 bytes beyond the start of this PLT entry.
10392 The address is encoded in bits 6-29, inclusive. The value
10393 stored is right-shifted by two bits, permitting a 26-bit
10395 bfd_put_32 (info->output_bfd,
10397 | (-(ent->plt.offset + 20) & 0x03fffffc)),
10398 plt->contents + ent->plt.offset + 20);
10399 bfd_put_32 (info->output_bfd, plt_entry[6],
10400 plt->contents + ent->plt.offset + 24);
10401 bfd_put_32 (info->output_bfd, plt_entry[7],
10402 plt->contents + ent->plt.offset + 28);
10404 /* Fill in the GOT entry corresponding to this PLT slot with
10405 the address immediately after the "bctr" instruction
10406 in this PLT entry. */
10407 bfd_put_32 (info->output_bfd, (plt->output_section->vma
10408 + plt->output_offset
10409 + ent->plt.offset + 16),
10410 htab->elf.sgotplt->contents + got_offset);
10412 if (!bfd_link_pic (info))
10414 /* Fill in a couple of entries in .rela.plt.unloaded. */
10415 loc = htab->srelplt2->contents
10416 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
10417 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
10418 * sizeof (Elf32_External_Rela));
10420 /* Provide the @ha relocation for the first instruction. */
10421 rela.r_offset = (plt->output_section->vma
10422 + plt->output_offset
10423 + ent->plt.offset + 2);
10424 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
10426 rela.r_addend = got_offset;
10427 bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
10428 loc += sizeof (Elf32_External_Rela);
10430 /* Provide the @l relocation for the second instruction. */
10431 rela.r_offset = (plt->output_section->vma
10432 + plt->output_offset
10433 + ent->plt.offset + 6);
10434 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
10436 rela.r_addend = got_offset;
10437 bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
10438 loc += sizeof (Elf32_External_Rela);
10440 /* Provide a relocation for the GOT entry corresponding to this
10441 PLT slot. Point it at the middle of the .plt entry. */
10442 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10443 + htab->elf.sgotplt->output_offset
10445 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
10447 rela.r_addend = ent->plt.offset + 16;
10448 bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
10451 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
10452 In particular, the offset for the relocation is not the
10453 address of the PLT entry for this function, as specified
10454 by the ABI. Instead, the offset is set to the address of
10455 the GOT slot for this function. See EABI 4.4.4.1. */
10456 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10457 + htab->elf.sgotplt->output_offset
10464 if (!htab->elf.dynamic_sections_created
10465 || h->dynindx == -1)
10467 if (h->type == STT_GNU_IFUNC)
10469 plt = htab->elf.iplt;
10470 relplt = htab->elf.irelplt;
10474 plt = htab->pltlocal;
10475 relplt = bfd_link_pic (info) ? htab->relpltlocal : NULL;
10478 && (h->root.type == bfd_link_hash_defined
10479 || h->root.type == bfd_link_hash_defweak))
10480 rela.r_addend = SYM_VAL (h);
10483 if (relplt == NULL)
10485 loc = plt->contents + ent->plt.offset;
10486 bfd_put_32 (info->output_bfd, rela.r_addend, loc);
10490 rela.r_offset = (plt->output_section->vma
10491 + plt->output_offset
10492 + ent->plt.offset);
10494 if (htab->plt_type == PLT_OLD
10495 || !htab->elf.dynamic_sections_created
10496 || h->dynindx == -1)
10498 /* We don't need to fill in the .plt. The ppc dynamic
10499 linker will fill it in. */
10503 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
10504 + htab->glink->output_section->vma
10505 + htab->glink->output_offset);
10506 bfd_put_32 (info->output_bfd, val,
10507 plt->contents + ent->plt.offset);
10512 if (relplt != NULL)
10514 /* Fill in the entry in the .rela.plt section. */
10515 if (!htab->elf.dynamic_sections_created
10516 || h->dynindx == -1)
10518 if (h->type == STT_GNU_IFUNC)
10519 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
10521 rela.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
10522 loc = relplt->contents + (relplt->reloc_count++
10523 * sizeof (Elf32_External_Rela));
10524 htab->local_ifunc_resolver = 1;
10528 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
10529 loc = relplt->contents + (reloc_index
10530 * sizeof (Elf32_External_Rela));
10531 if (h->type == STT_GNU_IFUNC && is_static_defined (h))
10532 htab->maybe_local_ifunc_resolver = 1;
10534 bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
10539 if (htab->plt_type == PLT_NEW
10540 || !htab->elf.dynamic_sections_created
10541 || h->dynindx == -1)
10544 asection *plt = htab->elf.splt;
10546 if (!htab->elf.dynamic_sections_created
10547 || h->dynindx == -1)
10549 if (h->type == STT_GNU_IFUNC)
10550 plt = htab->elf.iplt;
10555 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
10556 write_glink_stub (h, ent, plt, p, info);
10558 if (!bfd_link_pic (info))
10559 /* We only need one non-PIC glink stub. */
10568 /* Finish up PLT handling. */
10571 ppc_finish_symbols (struct bfd_link_info *info)
10573 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10579 elf_link_hash_traverse (&htab->elf, write_global_sym_plt, info);
10581 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
10583 bfd_vma *local_got, *end_local_got;
10584 struct plt_entry **local_plt, **lplt, **end_local_plt;
10585 Elf_Internal_Shdr *symtab_hdr;
10586 bfd_size_type locsymcount;
10587 Elf_Internal_Sym *local_syms = NULL;
10588 struct plt_entry *ent;
10590 if (!is_ppc_elf (ibfd))
10593 local_got = elf_local_got_offsets (ibfd);
10597 symtab_hdr = &elf_symtab_hdr (ibfd);
10598 locsymcount = symtab_hdr->sh_info;
10599 end_local_got = local_got + locsymcount;
10600 local_plt = (struct plt_entry **) end_local_got;
10601 end_local_plt = local_plt + locsymcount;
10602 for (lplt = local_plt; lplt < end_local_plt; ++lplt)
10603 for (ent = *lplt; ent != NULL; ent = ent->next)
10605 if (ent->plt.offset != (bfd_vma) -1)
10607 Elf_Internal_Sym *sym;
10609 asection *plt, *relplt;
10612 Elf_Internal_Rela rela;
10614 if (!get_sym_h (NULL, &sym, &sym_sec, NULL, &local_syms,
10615 lplt - local_plt, ibfd))
10617 if (local_syms != NULL
10618 && symtab_hdr->contents != (unsigned char *) local_syms)
10623 val = sym->st_value;
10624 if (sym_sec != NULL && sym_sec->output_section != NULL)
10625 val += sym_sec->output_offset + sym_sec->output_section->vma;
10627 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
10629 htab->local_ifunc_resolver = 1;
10630 plt = htab->elf.iplt;
10631 relplt = htab->elf.irelplt;
10632 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
10636 plt = htab->pltlocal;
10637 if (bfd_link_pic (info))
10639 relplt = htab->relpltlocal;
10640 rela.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
10644 loc = plt->contents + ent->plt.offset;
10645 bfd_put_32 (info->output_bfd, val, loc);
10650 rela.r_offset = (ent->plt.offset
10651 + plt->output_offset
10652 + plt->output_section->vma);
10653 rela.r_addend = val;
10654 loc = relplt->contents + (relplt->reloc_count++
10655 * sizeof (Elf32_External_Rela));
10656 bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
10658 if ((ent->glink_offset & 1) == 0)
10660 unsigned char *p = ((unsigned char *) htab->glink->contents
10661 + ent->glink_offset);
10663 write_glink_stub (NULL, ent, htab->elf.iplt, p, info);
10664 ent->glink_offset |= 1;
10668 if (local_syms != NULL
10669 && symtab_hdr->contents != (unsigned char *) local_syms)
10671 if (!info->keep_memory)
10674 symtab_hdr->contents = (unsigned char *) local_syms;
10680 /* Finish up dynamic symbol handling. We set the contents of various
10681 dynamic sections here. */
10684 ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
10685 struct bfd_link_info *info,
10686 struct elf_link_hash_entry *h,
10687 Elf_Internal_Sym *sym)
10689 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10690 struct plt_entry *ent;
10693 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
10694 h->root.root.string);
10697 if (!h->def_regular
10698 || (h->type == STT_GNU_IFUNC && !bfd_link_pic (info)))
10699 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
10700 if (ent->plt.offset != (bfd_vma) -1)
10702 if (!h->def_regular)
10704 /* Mark the symbol as undefined, rather than as
10705 defined in the .plt section. Leave the value if
10706 there were any relocations where pointer equality
10707 matters (this is a clue for the dynamic linker, to
10708 make function pointer comparisons work between an
10709 application and shared library), otherwise set it
10711 sym->st_shndx = SHN_UNDEF;
10712 if (!h->pointer_equality_needed)
10714 else if (!h->ref_regular_nonweak)
10716 /* This breaks function pointer comparisons, but
10717 that is better than breaking tests for a NULL
10718 function pointer. */
10724 /* Set the value of ifunc symbols in a non-pie
10725 executable to the glink entry. This is to avoid
10726 text relocations. We can't do this for ifunc in
10727 allocate_dynrelocs, as we do for normal dynamic
10728 function symbols with plt entries, because we need
10729 to keep the original value around for the ifunc
10732 = (_bfd_elf_section_from_bfd_section
10733 (info->output_bfd, htab->glink->output_section));
10734 sym->st_value = (ent->glink_offset
10735 + htab->glink->output_offset
10736 + htab->glink->output_section->vma);
10744 Elf_Internal_Rela rela;
10747 /* This symbols needs a copy reloc. Set it up. */
10750 fprintf (stderr, ", copy");
10753 BFD_ASSERT (h->dynindx != -1);
10755 if (ppc_elf_hash_entry (h)->has_sda_refs)
10757 else if (h->root.u.def.section == htab->elf.sdynrelro)
10758 s = htab->elf.sreldynrelro;
10760 s = htab->elf.srelbss;
10761 BFD_ASSERT (s != NULL);
10763 rela.r_offset = SYM_VAL (h);
10764 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
10766 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
10767 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10771 fprintf (stderr, "\n");
10777 static enum elf_reloc_type_class
10778 ppc_elf_reloc_type_class (const struct bfd_link_info *info,
10779 const asection *rel_sec,
10780 const Elf_Internal_Rela *rela)
10782 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10784 if (rel_sec == htab->elf.irelplt)
10785 return reloc_class_ifunc;
10787 switch (ELF32_R_TYPE (rela->r_info))
10789 case R_PPC_RELATIVE:
10790 return reloc_class_relative;
10791 case R_PPC_JMP_SLOT:
10792 return reloc_class_plt;
10794 return reloc_class_copy;
10796 return reloc_class_normal;
10800 /* Finish up the dynamic sections. */
10803 ppc_elf_finish_dynamic_sections (bfd *output_bfd,
10804 struct bfd_link_info *info)
10807 struct ppc_elf_link_hash_table *htab;
10810 bfd_boolean ret = TRUE;
10813 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
10816 htab = ppc_elf_hash_table (info);
10817 dynobj = htab->elf.dynobj;
10818 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
10821 if (htab->elf.hgot != NULL)
10822 got = SYM_VAL (htab->elf.hgot);
10824 if (htab->elf.dynamic_sections_created)
10826 Elf32_External_Dyn *dyncon, *dynconend;
10828 BFD_ASSERT (htab->elf.splt != NULL && sdyn != NULL);
10830 dyncon = (Elf32_External_Dyn *) sdyn->contents;
10831 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
10832 for (; dyncon < dynconend; dyncon++)
10834 Elf_Internal_Dyn dyn;
10837 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
10842 if (htab->is_vxworks)
10843 s = htab->elf.sgotplt;
10845 s = htab->elf.splt;
10846 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10850 dyn.d_un.d_val = htab->elf.srelplt->size;
10854 s = htab->elf.srelplt;
10855 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10859 dyn.d_un.d_ptr = got;
10863 if (htab->local_ifunc_resolver)
10864 info->callbacks->einfo
10865 (_("%X%P: text relocations and GNU indirect "
10866 "functions will result in a segfault at runtime\n"));
10867 else if (htab->maybe_local_ifunc_resolver)
10868 info->callbacks->einfo
10869 (_("%P: warning: text relocations and GNU indirect "
10870 "functions may result in a segfault at runtime\n"));
10874 if (htab->is_vxworks
10875 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
10880 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
10884 if (htab->elf.sgot != NULL
10885 && htab->elf.sgot->output_section != bfd_abs_section_ptr)
10887 if (htab->elf.hgot->root.u.def.section == htab->elf.sgot
10888 || htab->elf.hgot->root.u.def.section == htab->elf.sgotplt)
10890 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
10892 p += htab->elf.hgot->root.u.def.value;
10893 if (htab->plt_type == PLT_OLD)
10895 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
10896 so that a function can easily find the address of
10897 _GLOBAL_OFFSET_TABLE_. */
10898 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
10899 < htab->elf.hgot->root.u.def.section->size);
10900 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
10905 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
10906 BFD_ASSERT (htab->elf.hgot->root.u.def.value
10907 < htab->elf.hgot->root.u.def.section->size);
10908 bfd_put_32 (output_bfd, val, p);
10913 /* xgettext:c-format */
10914 _bfd_error_handler (_("%s not defined in linker created %pA"),
10915 htab->elf.hgot->root.root.string,
10916 (htab->elf.sgotplt != NULL
10917 ? htab->elf.sgotplt : htab->elf.sgot));
10918 bfd_set_error (bfd_error_bad_value);
10922 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 4;
10925 /* Fill in the first entry in the VxWorks procedure linkage table. */
10926 if (htab->is_vxworks
10927 && htab->elf.splt != NULL
10928 && htab->elf.splt->size != 0
10929 && htab->elf.splt->output_section != bfd_abs_section_ptr)
10931 asection *splt = htab->elf.splt;
10932 /* Use the right PLT. */
10933 const bfd_vma *plt_entry = (bfd_link_pic (info)
10934 ? ppc_elf_vxworks_pic_plt0_entry
10935 : ppc_elf_vxworks_plt0_entry);
10937 if (!bfd_link_pic (info))
10939 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
10941 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
10942 splt->contents + 0);
10943 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
10944 splt->contents + 4);
10948 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
10949 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
10951 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
10952 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
10953 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
10954 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
10955 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
10956 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
10958 if (! bfd_link_pic (info))
10960 Elf_Internal_Rela rela;
10963 loc = htab->srelplt2->contents;
10965 /* Output the @ha relocation for the first instruction. */
10966 rela.r_offset = (htab->elf.splt->output_section->vma
10967 + htab->elf.splt->output_offset
10969 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
10971 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10972 loc += sizeof (Elf32_External_Rela);
10974 /* Output the @l relocation for the second instruction. */
10975 rela.r_offset = (htab->elf.splt->output_section->vma
10976 + htab->elf.splt->output_offset
10978 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
10980 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10981 loc += sizeof (Elf32_External_Rela);
10983 /* Fix up the remaining relocations. They may have the wrong
10984 symbol index for _G_O_T_ or _P_L_T_ depending on the order
10985 in which symbols were output. */
10986 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
10988 Elf_Internal_Rela rel;
10990 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
10991 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
10992 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10993 loc += sizeof (Elf32_External_Rela);
10995 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
10996 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
10997 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10998 loc += sizeof (Elf32_External_Rela);
11000 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
11001 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
11002 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
11003 loc += sizeof (Elf32_External_Rela);
11008 if (htab->glink != NULL
11009 && htab->glink->contents != NULL
11010 && htab->elf.dynamic_sections_created)
11013 unsigned char *endp;
11017 * PIC glink code is the following:
11019 * # ith PLT code stub.
11020 * addis 11,30,(plt+(i-1)*4-got)@ha
11021 * lwz 11,(plt+(i-1)*4-got)@l(11)
11025 * # A table of branches, one for each plt entry.
11026 * # The idea is that the plt call stub loads ctr and r11 with these
11027 * # addresses, so (r11 - res_0) gives the plt index * 4.
11028 * res_0: b PLTresolve
11029 * res_1: b PLTresolve
11031 * # Some number of entries towards the end can be nops
11037 * addis 11,11,(1f-res_0)@ha
11040 * 1: addi 11,11,(1b-res_0)@l
11043 * sub 11,11,12 # r11 = index * 4
11044 * addis 12,12,(got+4-1b)@ha
11045 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
11046 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
11049 * add 11,0,11 # r11 = index * 12 = reloc offset.
11052 * Non-PIC glink code is a little simpler.
11054 * # ith PLT code stub.
11055 * lis 11,(plt+(i-1)*4)@ha
11056 * lwz 11,(plt+(i-1)*4)@l(11)
11060 * The branch table is the same, then comes
11063 * lis 12,(got+4)@ha
11064 * addis 11,11,(-res_0)@ha
11065 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
11066 * addi 11,11,(-res_0)@l # r11 = index * 4
11069 * lwz 12,(got+8)@l(12) # got[2] contains the map address
11070 * add 11,0,11 # r11 = index * 12 = reloc offset.
11074 /* Build the branch table, one for each plt entry (less one),
11075 and perhaps some padding. */
11076 p = htab->glink->contents;
11077 p += htab->glink_pltresolve;
11078 endp = htab->glink->contents;
11079 endp += htab->glink->size - GLINK_PLTRESOLVE;
11080 while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
11082 bfd_put_32 (output_bfd, B + endp - p, p);
11087 bfd_put_32 (output_bfd, NOP, p);
11091 res0 = (htab->glink_pltresolve
11092 + htab->glink->output_section->vma
11093 + htab->glink->output_offset);
11095 if (htab->params->ppc476_workaround)
11097 /* Ensure that a call stub at the end of a page doesn't
11098 result in prefetch over the end of the page into the
11099 glink branch table. */
11100 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
11102 bfd_vma glink_start = (htab->glink->output_section->vma
11103 + htab->glink->output_offset);
11105 for (page_addr = res0 & -pagesize;
11106 page_addr > glink_start;
11107 page_addr -= pagesize)
11109 /* We have a plt call stub that may need fixing. */
11113 loc = htab->glink->contents + page_addr - 4 - glink_start;
11114 insn = bfd_get_32 (output_bfd, loc);
11117 /* By alignment, we know that there must be at least
11118 one other call stub before this one. */
11119 insn = bfd_get_32 (output_bfd, loc - 16);
11121 bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
11123 bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
11128 /* Last comes the PLTresolve stub. */
11129 endp = p + GLINK_PLTRESOLVE;
11130 if (bfd_link_pic (info))
11134 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
11135 + htab->glink->output_section->vma
11136 + htab->glink->output_offset);
11138 bfd_put_32 (output_bfd, ADDIS_11_11 + PPC_HA (bcl - res0), p);
11140 bfd_put_32 (output_bfd, MFLR_0, p);
11142 bfd_put_32 (output_bfd, BCL_20_31, p);
11144 bfd_put_32 (output_bfd, ADDI_11_11 + PPC_LO (bcl - res0), p);
11146 bfd_put_32 (output_bfd, MFLR_12, p);
11148 bfd_put_32 (output_bfd, MTLR_0, p);
11150 bfd_put_32 (output_bfd, SUB_11_11_12, p);
11152 bfd_put_32 (output_bfd, ADDIS_12_12 + PPC_HA (got + 4 - bcl), p);
11154 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
11156 bfd_put_32 (output_bfd, LWZ_0_12 + PPC_LO (got + 4 - bcl), p);
11158 bfd_put_32 (output_bfd, LWZ_12_12 + PPC_LO (got + 8 - bcl), p);
11163 bfd_put_32 (output_bfd, LWZU_0_12 + PPC_LO (got + 4 - bcl), p);
11165 bfd_put_32 (output_bfd, LWZ_12_12 + 4, p);
11168 bfd_put_32 (output_bfd, MTCTR_0, p);
11170 bfd_put_32 (output_bfd, ADD_0_11_11, p);
11174 bfd_put_32 (output_bfd, LIS_12 + PPC_HA (got + 4), p);
11176 bfd_put_32 (output_bfd, ADDIS_11_11 + PPC_HA (-res0), p);
11178 if (PPC_HA (got + 4) == PPC_HA (got + 8))
11179 bfd_put_32 (output_bfd, LWZ_0_12 + PPC_LO (got + 4), p);
11181 bfd_put_32 (output_bfd, LWZU_0_12 + PPC_LO (got + 4), p);
11183 bfd_put_32 (output_bfd, ADDI_11_11 + PPC_LO (-res0), p);
11185 bfd_put_32 (output_bfd, MTCTR_0, p);
11187 bfd_put_32 (output_bfd, ADD_0_11_11, p);
11189 if (PPC_HA (got + 4) == PPC_HA (got + 8))
11190 bfd_put_32 (output_bfd, LWZ_12_12 + PPC_LO (got + 8), p);
11192 bfd_put_32 (output_bfd, LWZ_12_12 + 4, p);
11195 bfd_put_32 (output_bfd, ADD_11_0_11, p);
11197 bfd_put_32 (output_bfd, BCTR, p);
11201 bfd_put_32 (output_bfd,
11202 htab->params->ppc476_workaround ? BA : NOP, p);
11205 BFD_ASSERT (p == endp);
11208 if (htab->glink_eh_frame != NULL
11209 && htab->glink_eh_frame->contents != NULL)
11211 unsigned char *p = htab->glink_eh_frame->contents;
11214 p += sizeof (glink_eh_frame_cie);
11219 /* Offset to .glink. */
11220 val = (htab->glink->output_section->vma
11221 + htab->glink->output_offset);
11222 val -= (htab->glink_eh_frame->output_section->vma
11223 + htab->glink_eh_frame->output_offset);
11224 val -= p - htab->glink_eh_frame->contents;
11225 bfd_put_32 (htab->elf.dynobj, val, p);
11227 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
11228 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
11229 htab->glink_eh_frame,
11230 htab->glink_eh_frame->contents))
11237 #define TARGET_LITTLE_SYM powerpc_elf32_le_vec
11238 #define TARGET_LITTLE_NAME "elf32-powerpcle"
11239 #define TARGET_BIG_SYM powerpc_elf32_vec
11240 #define TARGET_BIG_NAME "elf32-powerpc"
11241 #define ELF_ARCH bfd_arch_powerpc
11242 #define ELF_TARGET_ID PPC32_ELF_DATA
11243 #define ELF_MACHINE_CODE EM_PPC
11244 #ifdef __QNXTARGET__
11245 #define ELF_MAXPAGESIZE 0x1000
11246 #define ELF_COMMONPAGESIZE 0x1000
11248 #define ELF_MAXPAGESIZE 0x10000
11249 #define ELF_COMMONPAGESIZE 0x10000
11251 #define ELF_MINPAGESIZE 0x1000
11252 #define elf_info_to_howto ppc_elf_info_to_howto
11254 #ifdef EM_CYGNUS_POWERPC
11255 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
11259 #define ELF_MACHINE_ALT2 EM_PPC_OLD
11262 #define elf_backend_plt_not_loaded 1
11263 #define elf_backend_want_dynrelro 1
11264 #define elf_backend_can_gc_sections 1
11265 #define elf_backend_can_refcount 1
11266 #define elf_backend_rela_normal 1
11267 #define elf_backend_caches_rawsize 1
11269 #define bfd_elf32_mkobject ppc_elf_mkobject
11270 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
11271 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
11272 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
11273 #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
11274 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
11275 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
11276 #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
11278 #define elf_backend_object_p ppc_elf_object_p
11279 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
11280 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
11281 #define elf_backend_relocate_section ppc_elf_relocate_section
11282 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
11283 #define elf_backend_check_relocs ppc_elf_check_relocs
11284 #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
11285 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
11286 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
11287 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
11288 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
11289 #define elf_backend_hash_symbol ppc_elf_hash_symbol
11290 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
11291 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
11292 #define elf_backend_fake_sections ppc_elf_fake_sections
11293 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
11294 #define elf_backend_modify_segment_map ppc_elf_modify_segment_map
11295 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
11296 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
11297 #define elf_backend_write_core_note ppc_elf_write_core_note
11298 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
11299 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
11300 #define elf_backend_final_write_processing ppc_elf_final_write_processing
11301 #define elf_backend_write_section ppc_elf_write_section
11302 #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
11303 #define elf_backend_plt_sym_val ppc_elf_plt_sym_val
11304 #define elf_backend_action_discarded ppc_elf_action_discarded
11305 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
11306 #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
11308 #include "elf32-target.h"
11310 /* FreeBSD Target */
11312 #undef TARGET_LITTLE_SYM
11313 #undef TARGET_LITTLE_NAME
11315 #undef TARGET_BIG_SYM
11316 #define TARGET_BIG_SYM powerpc_elf32_fbsd_vec
11317 #undef TARGET_BIG_NAME
11318 #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
11321 #define ELF_OSABI ELFOSABI_FREEBSD
11324 #define elf32_bed elf32_powerpc_fbsd_bed
11326 #include "elf32-target.h"
11328 /* VxWorks Target */
11330 #undef TARGET_LITTLE_SYM
11331 #undef TARGET_LITTLE_NAME
11333 #undef TARGET_BIG_SYM
11334 #define TARGET_BIG_SYM powerpc_elf32_vxworks_vec
11335 #undef TARGET_BIG_NAME
11336 #define TARGET_BIG_NAME "elf32-powerpc-vxworks"
11340 /* VxWorks uses the elf default section flags for .plt. */
11341 static const struct bfd_elf_special_section *
11342 ppc_elf_vxworks_get_sec_type_attr (bfd *abfd, asection *sec)
11344 if (sec->name == NULL)
11347 if (strcmp (sec->name, ".plt") == 0)
11348 return _bfd_elf_get_sec_type_attr (abfd, sec);
11350 return ppc_elf_get_sec_type_attr (abfd, sec);
11353 /* Like ppc_elf_link_hash_table_create, but overrides
11354 appropriately for VxWorks. */
11355 static struct bfd_link_hash_table *
11356 ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
11358 struct bfd_link_hash_table *ret;
11360 ret = ppc_elf_link_hash_table_create (abfd);
11363 struct ppc_elf_link_hash_table *htab
11364 = (struct ppc_elf_link_hash_table *)ret;
11365 htab->is_vxworks = 1;
11366 htab->plt_type = PLT_VXWORKS;
11367 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
11368 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
11369 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
11374 /* Tweak magic VxWorks symbols as they are loaded. */
11376 ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
11377 struct bfd_link_info *info,
11378 Elf_Internal_Sym *sym,
11379 const char **namep,
11384 if (!elf_vxworks_add_symbol_hook (abfd, info, sym, namep, flagsp, secp,
11388 return ppc_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp);
11392 ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
11394 ppc_elf_final_write_processing (abfd, linker);
11395 elf_vxworks_final_write_processing (abfd, linker);
11398 /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
11400 #undef elf_backend_want_plt_sym
11401 #define elf_backend_want_plt_sym 1
11402 #undef elf_backend_want_got_plt
11403 #define elf_backend_want_got_plt 1
11404 #undef elf_backend_got_symbol_offset
11405 #define elf_backend_got_symbol_offset 0
11406 #undef elf_backend_plt_not_loaded
11407 #define elf_backend_plt_not_loaded 0
11408 #undef elf_backend_plt_readonly
11409 #define elf_backend_plt_readonly 1
11410 #undef elf_backend_got_header_size
11411 #define elf_backend_got_header_size 12
11412 #undef elf_backend_dtrel_excludes_plt
11413 #define elf_backend_dtrel_excludes_plt 1
11415 #undef bfd_elf32_get_synthetic_symtab
11417 #undef bfd_elf32_bfd_link_hash_table_create
11418 #define bfd_elf32_bfd_link_hash_table_create \
11419 ppc_elf_vxworks_link_hash_table_create
11420 #undef elf_backend_add_symbol_hook
11421 #define elf_backend_add_symbol_hook \
11422 ppc_elf_vxworks_add_symbol_hook
11423 #undef elf_backend_link_output_symbol_hook
11424 #define elf_backend_link_output_symbol_hook \
11425 elf_vxworks_link_output_symbol_hook
11426 #undef elf_backend_final_write_processing
11427 #define elf_backend_final_write_processing \
11428 ppc_elf_vxworks_final_write_processing
11429 #undef elf_backend_get_sec_type_attr
11430 #define elf_backend_get_sec_type_attr \
11431 ppc_elf_vxworks_get_sec_type_attr
11432 #undef elf_backend_emit_relocs
11433 #define elf_backend_emit_relocs \
11434 elf_vxworks_emit_relocs
11437 #define elf32_bed ppc_elf_vxworks_bed
11438 #undef elf_backend_post_process_headers
11440 #include "elf32-target.h"
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