1 /* PowerPC-specific support for 32-bit ELF
2 Copyright (C) 1994-2016 Free Software Foundation, Inc.
3 Written by Ian Lance Taylor, Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the
19 Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
20 Boston, MA 02110-1301, USA. */
23 /* This file is based on a preliminary PowerPC ELF ABI. The
24 information may not match the final PowerPC ELF ABI. It includes
25 suggestions from the in-progress Embedded PowerPC ABI, and that
26 information may also not match. */
35 #include "elf32-ppc.h"
36 #include "elf-vxworks.h"
38 #include "elf-linux-psinfo.h"
40 typedef enum split16_format_type
47 /* RELA relocations are used here. */
49 static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
50 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
51 static bfd_reloc_status_type ppc_elf_unhandled_reloc
52 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
54 /* Branch prediction bit for branch taken relocs. */
55 #define BRANCH_PREDICT_BIT 0x200000
56 /* Mask to set RA in memory instructions. */
57 #define RA_REGISTER_MASK 0x001f0000
58 /* Value to shift register by to insert RA. */
59 #define RA_REGISTER_SHIFT 16
61 /* The name of the dynamic interpreter. This is put in the .interp
63 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
65 /* For old-style PLT. */
66 /* The number of single-slot PLT entries (the rest use two slots). */
67 #define PLT_NUM_SINGLE_ENTRIES 8192
69 /* For new-style .glink and .plt. */
70 #define GLINK_PLTRESOLVE 16*4
71 #define GLINK_ENTRY_SIZE 4*4
72 #define TLS_GET_ADDR_GLINK_SIZE 12*4
74 /* VxWorks uses its own plt layout, filled in by the static linker. */
76 /* The standard VxWorks PLT entry. */
77 #define VXWORKS_PLT_ENTRY_SIZE 32
78 static const bfd_vma ppc_elf_vxworks_plt_entry
79 [VXWORKS_PLT_ENTRY_SIZE / 4] =
81 0x3d800000, /* lis r12,0 */
82 0x818c0000, /* lwz r12,0(r12) */
83 0x7d8903a6, /* mtctr r12 */
84 0x4e800420, /* bctr */
85 0x39600000, /* li r11,0 */
86 0x48000000, /* b 14 <.PLT0resolve+0x4> */
90 static const bfd_vma ppc_elf_vxworks_pic_plt_entry
91 [VXWORKS_PLT_ENTRY_SIZE / 4] =
93 0x3d9e0000, /* addis r12,r30,0 */
94 0x818c0000, /* lwz r12,0(r12) */
95 0x7d8903a6, /* mtctr r12 */
96 0x4e800420, /* bctr */
97 0x39600000, /* li r11,0 */
98 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
100 0x60000000, /* nop */
103 /* The initial VxWorks PLT entry. */
104 #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
105 static const bfd_vma ppc_elf_vxworks_plt0_entry
106 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
108 0x3d800000, /* lis r12,0 */
109 0x398c0000, /* addi r12,r12,0 */
110 0x800c0008, /* lwz r0,8(r12) */
111 0x7c0903a6, /* mtctr r0 */
112 0x818c0004, /* lwz r12,4(r12) */
113 0x4e800420, /* bctr */
114 0x60000000, /* nop */
115 0x60000000, /* nop */
117 static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
118 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
120 0x819e0008, /* lwz r12,8(r30) */
121 0x7d8903a6, /* mtctr r12 */
122 0x819e0004, /* lwz r12,4(r30) */
123 0x4e800420, /* bctr */
124 0x60000000, /* nop */
125 0x60000000, /* nop */
126 0x60000000, /* nop */
127 0x60000000, /* nop */
130 /* For executables, we have some additional relocations in
131 .rela.plt.unloaded, for the kernel loader. */
133 /* The number of non-JMP_SLOT relocations per PLT0 slot. */
134 #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
135 /* The number of relocations in the PLTResolve slot. */
136 #define VXWORKS_PLTRESOLVE_RELOCS 2
137 /* The number of relocations in the PLTResolve slot when when creating
139 #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
141 /* Some instructions. */
142 #define ADDIS_11_11 0x3d6b0000
143 #define ADDIS_11_30 0x3d7e0000
144 #define ADDIS_12_12 0x3d8c0000
145 #define ADDI_11_11 0x396b0000
146 #define ADD_0_11_11 0x7c0b5a14
147 #define ADD_3_12_2 0x7c6c1214
148 #define ADD_11_0_11 0x7d605a14
150 #define BA 0x48000002
151 #define BCL_20_31 0x429f0005
152 #define BCTR 0x4e800420
153 #define BEQLR 0x4d820020
154 #define CMPWI_11_0 0x2c0b0000
155 #define LIS_11 0x3d600000
156 #define LIS_12 0x3d800000
157 #define LWZU_0_12 0x840c0000
158 #define LWZ_0_12 0x800c0000
159 #define LWZ_11_3 0x81630000
160 #define LWZ_11_11 0x816b0000
161 #define LWZ_11_30 0x817e0000
162 #define LWZ_12_3 0x81830000
163 #define LWZ_12_12 0x818c0000
164 #define MR_0_3 0x7c601b78
165 #define MR_3_0 0x7c030378
166 #define MFLR_0 0x7c0802a6
167 #define MFLR_12 0x7d8802a6
168 #define MTCTR_0 0x7c0903a6
169 #define MTCTR_11 0x7d6903a6
170 #define MTLR_0 0x7c0803a6
171 #define NOP 0x60000000
172 #define SUB_11_11_12 0x7d6c5850
174 /* Offset of tp and dtp pointers from start of TLS block. */
175 #define TP_OFFSET 0x7000
176 #define DTP_OFFSET 0x8000
178 /* The value of a defined global symbol. */
179 #define SYM_VAL(SYM) \
180 ((SYM)->root.u.def.section->output_section->vma \
181 + (SYM)->root.u.def.section->output_offset \
182 + (SYM)->root.u.def.value)
184 static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
186 static reloc_howto_type ppc_elf_howto_raw[] = {
187 /* This reloc does nothing. */
188 HOWTO (R_PPC_NONE, /* type */
190 3, /* size (0 = byte, 1 = short, 2 = long) */
192 FALSE, /* pc_relative */
194 complain_overflow_dont, /* complain_on_overflow */
195 bfd_elf_generic_reloc, /* special_function */
196 "R_PPC_NONE", /* name */
197 FALSE, /* partial_inplace */
200 FALSE), /* pcrel_offset */
202 /* A standard 32 bit relocation. */
203 HOWTO (R_PPC_ADDR32, /* type */
205 2, /* size (0 = byte, 1 = short, 2 = long) */
207 FALSE, /* pc_relative */
209 complain_overflow_dont, /* complain_on_overflow */
210 bfd_elf_generic_reloc, /* special_function */
211 "R_PPC_ADDR32", /* name */
212 FALSE, /* partial_inplace */
214 0xffffffff, /* dst_mask */
215 FALSE), /* pcrel_offset */
217 /* An absolute 26 bit branch; the lower two bits must be zero.
218 FIXME: we don't check that, we just clear them. */
219 HOWTO (R_PPC_ADDR24, /* type */
221 2, /* size (0 = byte, 1 = short, 2 = long) */
223 FALSE, /* pc_relative */
225 complain_overflow_signed, /* complain_on_overflow */
226 bfd_elf_generic_reloc, /* special_function */
227 "R_PPC_ADDR24", /* name */
228 FALSE, /* partial_inplace */
230 0x3fffffc, /* dst_mask */
231 FALSE), /* pcrel_offset */
233 /* A standard 16 bit relocation. */
234 HOWTO (R_PPC_ADDR16, /* type */
236 1, /* size (0 = byte, 1 = short, 2 = long) */
238 FALSE, /* pc_relative */
240 complain_overflow_bitfield, /* complain_on_overflow */
241 bfd_elf_generic_reloc, /* special_function */
242 "R_PPC_ADDR16", /* name */
243 FALSE, /* partial_inplace */
245 0xffff, /* dst_mask */
246 FALSE), /* pcrel_offset */
248 /* A 16 bit relocation without overflow. */
249 HOWTO (R_PPC_ADDR16_LO, /* type */
251 1, /* size (0 = byte, 1 = short, 2 = long) */
253 FALSE, /* pc_relative */
255 complain_overflow_dont,/* complain_on_overflow */
256 bfd_elf_generic_reloc, /* special_function */
257 "R_PPC_ADDR16_LO", /* name */
258 FALSE, /* partial_inplace */
260 0xffff, /* dst_mask */
261 FALSE), /* pcrel_offset */
263 /* The high order 16 bits of an address. */
264 HOWTO (R_PPC_ADDR16_HI, /* type */
266 1, /* size (0 = byte, 1 = short, 2 = long) */
268 FALSE, /* pc_relative */
270 complain_overflow_dont, /* complain_on_overflow */
271 bfd_elf_generic_reloc, /* special_function */
272 "R_PPC_ADDR16_HI", /* name */
273 FALSE, /* partial_inplace */
275 0xffff, /* dst_mask */
276 FALSE), /* pcrel_offset */
278 /* The high order 16 bits of an address, plus 1 if the contents of
279 the low 16 bits, treated as a signed number, is negative. */
280 HOWTO (R_PPC_ADDR16_HA, /* type */
282 1, /* size (0 = byte, 1 = short, 2 = long) */
284 FALSE, /* pc_relative */
286 complain_overflow_dont, /* complain_on_overflow */
287 ppc_elf_addr16_ha_reloc, /* special_function */
288 "R_PPC_ADDR16_HA", /* name */
289 FALSE, /* partial_inplace */
291 0xffff, /* dst_mask */
292 FALSE), /* pcrel_offset */
294 /* An absolute 16 bit branch; the lower two bits must be zero.
295 FIXME: we don't check that, we just clear them. */
296 HOWTO (R_PPC_ADDR14, /* type */
298 2, /* size (0 = byte, 1 = short, 2 = long) */
300 FALSE, /* pc_relative */
302 complain_overflow_signed, /* complain_on_overflow */
303 bfd_elf_generic_reloc, /* special_function */
304 "R_PPC_ADDR14", /* name */
305 FALSE, /* partial_inplace */
307 0xfffc, /* dst_mask */
308 FALSE), /* pcrel_offset */
310 /* An absolute 16 bit branch, for which bit 10 should be set to
311 indicate that the branch is expected to be taken. The lower two
312 bits must be zero. */
313 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
315 2, /* size (0 = byte, 1 = short, 2 = long) */
317 FALSE, /* pc_relative */
319 complain_overflow_signed, /* complain_on_overflow */
320 bfd_elf_generic_reloc, /* special_function */
321 "R_PPC_ADDR14_BRTAKEN",/* name */
322 FALSE, /* partial_inplace */
324 0xfffc, /* dst_mask */
325 FALSE), /* pcrel_offset */
327 /* An absolute 16 bit branch, for which bit 10 should be set to
328 indicate that the branch is not expected to be taken. The lower
329 two bits must be zero. */
330 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
332 2, /* size (0 = byte, 1 = short, 2 = long) */
334 FALSE, /* pc_relative */
336 complain_overflow_signed, /* complain_on_overflow */
337 bfd_elf_generic_reloc, /* special_function */
338 "R_PPC_ADDR14_BRNTAKEN",/* name */
339 FALSE, /* partial_inplace */
341 0xfffc, /* dst_mask */
342 FALSE), /* pcrel_offset */
344 /* A relative 26 bit branch; the lower two bits must be zero. */
345 HOWTO (R_PPC_REL24, /* type */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
349 TRUE, /* pc_relative */
351 complain_overflow_signed, /* complain_on_overflow */
352 bfd_elf_generic_reloc, /* special_function */
353 "R_PPC_REL24", /* name */
354 FALSE, /* partial_inplace */
356 0x3fffffc, /* dst_mask */
357 TRUE), /* pcrel_offset */
359 /* A relative 16 bit branch; the lower two bits must be zero. */
360 HOWTO (R_PPC_REL14, /* type */
362 2, /* size (0 = byte, 1 = short, 2 = long) */
364 TRUE, /* pc_relative */
366 complain_overflow_signed, /* complain_on_overflow */
367 bfd_elf_generic_reloc, /* special_function */
368 "R_PPC_REL14", /* name */
369 FALSE, /* partial_inplace */
371 0xfffc, /* dst_mask */
372 TRUE), /* pcrel_offset */
374 /* A relative 16 bit branch. Bit 10 should be set to indicate that
375 the branch is expected to be taken. The lower two bits must be
377 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
381 TRUE, /* pc_relative */
383 complain_overflow_signed, /* complain_on_overflow */
384 bfd_elf_generic_reloc, /* special_function */
385 "R_PPC_REL14_BRTAKEN", /* name */
386 FALSE, /* partial_inplace */
388 0xfffc, /* dst_mask */
389 TRUE), /* pcrel_offset */
391 /* A relative 16 bit branch. Bit 10 should be set to indicate that
392 the branch is not expected to be taken. The lower two bits must
394 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
396 2, /* size (0 = byte, 1 = short, 2 = long) */
398 TRUE, /* pc_relative */
400 complain_overflow_signed, /* complain_on_overflow */
401 bfd_elf_generic_reloc, /* special_function */
402 "R_PPC_REL14_BRNTAKEN",/* name */
403 FALSE, /* partial_inplace */
405 0xfffc, /* dst_mask */
406 TRUE), /* pcrel_offset */
408 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
410 HOWTO (R_PPC_GOT16, /* type */
412 1, /* size (0 = byte, 1 = short, 2 = long) */
414 FALSE, /* pc_relative */
416 complain_overflow_signed, /* complain_on_overflow */
417 bfd_elf_generic_reloc, /* special_function */
418 "R_PPC_GOT16", /* name */
419 FALSE, /* partial_inplace */
421 0xffff, /* dst_mask */
422 FALSE), /* pcrel_offset */
424 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
426 HOWTO (R_PPC_GOT16_LO, /* type */
428 1, /* size (0 = byte, 1 = short, 2 = long) */
430 FALSE, /* pc_relative */
432 complain_overflow_dont, /* complain_on_overflow */
433 bfd_elf_generic_reloc, /* special_function */
434 "R_PPC_GOT16_LO", /* name */
435 FALSE, /* partial_inplace */
437 0xffff, /* dst_mask */
438 FALSE), /* pcrel_offset */
440 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
442 HOWTO (R_PPC_GOT16_HI, /* type */
444 1, /* size (0 = byte, 1 = short, 2 = long) */
446 FALSE, /* pc_relative */
448 complain_overflow_dont, /* complain_on_overflow */
449 bfd_elf_generic_reloc, /* special_function */
450 "R_PPC_GOT16_HI", /* name */
451 FALSE, /* partial_inplace */
453 0xffff, /* dst_mask */
454 FALSE), /* pcrel_offset */
456 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
458 HOWTO (R_PPC_GOT16_HA, /* type */
460 1, /* size (0 = byte, 1 = short, 2 = long) */
462 FALSE, /* pc_relative */
464 complain_overflow_dont, /* complain_on_overflow */
465 ppc_elf_addr16_ha_reloc, /* special_function */
466 "R_PPC_GOT16_HA", /* name */
467 FALSE, /* partial_inplace */
469 0xffff, /* dst_mask */
470 FALSE), /* pcrel_offset */
472 /* Like R_PPC_REL24, but referring to the procedure linkage table
473 entry for the symbol. */
474 HOWTO (R_PPC_PLTREL24, /* type */
476 2, /* size (0 = byte, 1 = short, 2 = long) */
478 TRUE, /* pc_relative */
480 complain_overflow_signed, /* complain_on_overflow */
481 bfd_elf_generic_reloc, /* special_function */
482 "R_PPC_PLTREL24", /* name */
483 FALSE, /* partial_inplace */
485 0x3fffffc, /* dst_mask */
486 TRUE), /* pcrel_offset */
488 /* This is used only by the dynamic linker. The symbol should exist
489 both in the object being run and in some shared library. The
490 dynamic linker copies the data addressed by the symbol from the
491 shared library into the object, because the object being
492 run has to have the data at some particular address. */
493 HOWTO (R_PPC_COPY, /* type */
495 2, /* size (0 = byte, 1 = short, 2 = long) */
497 FALSE, /* pc_relative */
499 complain_overflow_dont, /* complain_on_overflow */
500 bfd_elf_generic_reloc, /* special_function */
501 "R_PPC_COPY", /* name */
502 FALSE, /* partial_inplace */
505 FALSE), /* pcrel_offset */
507 /* Like R_PPC_ADDR32, but used when setting global offset table
509 HOWTO (R_PPC_GLOB_DAT, /* type */
511 2, /* size (0 = byte, 1 = short, 2 = long) */
513 FALSE, /* pc_relative */
515 complain_overflow_dont, /* complain_on_overflow */
516 bfd_elf_generic_reloc, /* special_function */
517 "R_PPC_GLOB_DAT", /* name */
518 FALSE, /* partial_inplace */
520 0xffffffff, /* dst_mask */
521 FALSE), /* pcrel_offset */
523 /* Marks a procedure linkage table entry for a symbol. */
524 HOWTO (R_PPC_JMP_SLOT, /* type */
526 2, /* size (0 = byte, 1 = short, 2 = long) */
528 FALSE, /* pc_relative */
530 complain_overflow_dont, /* complain_on_overflow */
531 bfd_elf_generic_reloc, /* special_function */
532 "R_PPC_JMP_SLOT", /* name */
533 FALSE, /* partial_inplace */
536 FALSE), /* pcrel_offset */
538 /* Used only by the dynamic linker. When the object is run, this
539 longword is set to the load address of the object, plus the
541 HOWTO (R_PPC_RELATIVE, /* type */
543 2, /* size (0 = byte, 1 = short, 2 = long) */
545 FALSE, /* pc_relative */
547 complain_overflow_dont, /* complain_on_overflow */
548 bfd_elf_generic_reloc, /* special_function */
549 "R_PPC_RELATIVE", /* name */
550 FALSE, /* partial_inplace */
552 0xffffffff, /* dst_mask */
553 FALSE), /* pcrel_offset */
555 /* Like R_PPC_REL24, but uses the value of the symbol within the
556 object rather than the final value. Normally used for
557 _GLOBAL_OFFSET_TABLE_. */
558 HOWTO (R_PPC_LOCAL24PC, /* type */
560 2, /* size (0 = byte, 1 = short, 2 = long) */
562 TRUE, /* pc_relative */
564 complain_overflow_signed, /* complain_on_overflow */
565 bfd_elf_generic_reloc, /* special_function */
566 "R_PPC_LOCAL24PC", /* name */
567 FALSE, /* partial_inplace */
569 0x3fffffc, /* dst_mask */
570 TRUE), /* pcrel_offset */
572 /* Like R_PPC_ADDR32, but may be unaligned. */
573 HOWTO (R_PPC_UADDR32, /* type */
575 2, /* size (0 = byte, 1 = short, 2 = long) */
577 FALSE, /* pc_relative */
579 complain_overflow_dont, /* complain_on_overflow */
580 bfd_elf_generic_reloc, /* special_function */
581 "R_PPC_UADDR32", /* name */
582 FALSE, /* partial_inplace */
584 0xffffffff, /* dst_mask */
585 FALSE), /* pcrel_offset */
587 /* Like R_PPC_ADDR16, but may be unaligned. */
588 HOWTO (R_PPC_UADDR16, /* type */
590 1, /* size (0 = byte, 1 = short, 2 = long) */
592 FALSE, /* pc_relative */
594 complain_overflow_bitfield, /* complain_on_overflow */
595 bfd_elf_generic_reloc, /* special_function */
596 "R_PPC_UADDR16", /* name */
597 FALSE, /* partial_inplace */
599 0xffff, /* dst_mask */
600 FALSE), /* pcrel_offset */
602 /* 32-bit PC relative */
603 HOWTO (R_PPC_REL32, /* type */
605 2, /* size (0 = byte, 1 = short, 2 = long) */
607 TRUE, /* pc_relative */
609 complain_overflow_dont, /* complain_on_overflow */
610 bfd_elf_generic_reloc, /* special_function */
611 "R_PPC_REL32", /* name */
612 FALSE, /* partial_inplace */
614 0xffffffff, /* dst_mask */
615 TRUE), /* pcrel_offset */
617 /* 32-bit relocation to the symbol's procedure linkage table.
618 FIXME: not supported. */
619 HOWTO (R_PPC_PLT32, /* type */
621 2, /* size (0 = byte, 1 = short, 2 = long) */
623 FALSE, /* pc_relative */
625 complain_overflow_dont, /* complain_on_overflow */
626 bfd_elf_generic_reloc, /* special_function */
627 "R_PPC_PLT32", /* name */
628 FALSE, /* partial_inplace */
631 FALSE), /* pcrel_offset */
633 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
634 FIXME: not supported. */
635 HOWTO (R_PPC_PLTREL32, /* type */
637 2, /* size (0 = byte, 1 = short, 2 = long) */
639 TRUE, /* pc_relative */
641 complain_overflow_dont, /* complain_on_overflow */
642 bfd_elf_generic_reloc, /* special_function */
643 "R_PPC_PLTREL32", /* name */
644 FALSE, /* partial_inplace */
647 TRUE), /* pcrel_offset */
649 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
651 HOWTO (R_PPC_PLT16_LO, /* type */
653 1, /* size (0 = byte, 1 = short, 2 = long) */
655 FALSE, /* pc_relative */
657 complain_overflow_dont, /* complain_on_overflow */
658 bfd_elf_generic_reloc, /* special_function */
659 "R_PPC_PLT16_LO", /* name */
660 FALSE, /* partial_inplace */
662 0xffff, /* dst_mask */
663 FALSE), /* pcrel_offset */
665 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
667 HOWTO (R_PPC_PLT16_HI, /* type */
669 1, /* size (0 = byte, 1 = short, 2 = long) */
671 FALSE, /* pc_relative */
673 complain_overflow_dont, /* complain_on_overflow */
674 bfd_elf_generic_reloc, /* special_function */
675 "R_PPC_PLT16_HI", /* name */
676 FALSE, /* partial_inplace */
678 0xffff, /* dst_mask */
679 FALSE), /* pcrel_offset */
681 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
683 HOWTO (R_PPC_PLT16_HA, /* type */
685 1, /* size (0 = byte, 1 = short, 2 = long) */
687 FALSE, /* pc_relative */
689 complain_overflow_dont, /* complain_on_overflow */
690 ppc_elf_addr16_ha_reloc, /* special_function */
691 "R_PPC_PLT16_HA", /* name */
692 FALSE, /* partial_inplace */
694 0xffff, /* dst_mask */
695 FALSE), /* pcrel_offset */
697 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
699 HOWTO (R_PPC_SDAREL16, /* type */
701 1, /* size (0 = byte, 1 = short, 2 = long) */
703 FALSE, /* pc_relative */
705 complain_overflow_signed, /* complain_on_overflow */
706 bfd_elf_generic_reloc, /* special_function */
707 "R_PPC_SDAREL16", /* name */
708 FALSE, /* partial_inplace */
710 0xffff, /* dst_mask */
711 FALSE), /* pcrel_offset */
713 /* 16-bit section relative relocation. */
714 HOWTO (R_PPC_SECTOFF, /* type */
716 1, /* size (0 = byte, 1 = short, 2 = long) */
718 FALSE, /* pc_relative */
720 complain_overflow_signed, /* complain_on_overflow */
721 bfd_elf_generic_reloc, /* special_function */
722 "R_PPC_SECTOFF", /* name */
723 FALSE, /* partial_inplace */
725 0xffff, /* dst_mask */
726 FALSE), /* pcrel_offset */
728 /* 16-bit lower half section relative relocation. */
729 HOWTO (R_PPC_SECTOFF_LO, /* type */
731 1, /* size (0 = byte, 1 = short, 2 = long) */
733 FALSE, /* pc_relative */
735 complain_overflow_dont, /* complain_on_overflow */
736 bfd_elf_generic_reloc, /* special_function */
737 "R_PPC_SECTOFF_LO", /* name */
738 FALSE, /* partial_inplace */
740 0xffff, /* dst_mask */
741 FALSE), /* pcrel_offset */
743 /* 16-bit upper half section relative relocation. */
744 HOWTO (R_PPC_SECTOFF_HI, /* type */
746 1, /* size (0 = byte, 1 = short, 2 = long) */
748 FALSE, /* pc_relative */
750 complain_overflow_dont, /* complain_on_overflow */
751 bfd_elf_generic_reloc, /* special_function */
752 "R_PPC_SECTOFF_HI", /* name */
753 FALSE, /* partial_inplace */
755 0xffff, /* dst_mask */
756 FALSE), /* pcrel_offset */
758 /* 16-bit upper half adjusted section relative relocation. */
759 HOWTO (R_PPC_SECTOFF_HA, /* type */
761 1, /* size (0 = byte, 1 = short, 2 = long) */
763 FALSE, /* pc_relative */
765 complain_overflow_dont, /* complain_on_overflow */
766 ppc_elf_addr16_ha_reloc, /* special_function */
767 "R_PPC_SECTOFF_HA", /* name */
768 FALSE, /* partial_inplace */
770 0xffff, /* dst_mask */
771 FALSE), /* pcrel_offset */
773 /* Marker relocs for TLS. */
776 2, /* size (0 = byte, 1 = short, 2 = long) */
778 FALSE, /* pc_relative */
780 complain_overflow_dont, /* complain_on_overflow */
781 bfd_elf_generic_reloc, /* special_function */
782 "R_PPC_TLS", /* name */
783 FALSE, /* partial_inplace */
786 FALSE), /* pcrel_offset */
790 2, /* size (0 = byte, 1 = short, 2 = long) */
792 FALSE, /* pc_relative */
794 complain_overflow_dont, /* complain_on_overflow */
795 bfd_elf_generic_reloc, /* special_function */
796 "R_PPC_TLSGD", /* name */
797 FALSE, /* partial_inplace */
800 FALSE), /* pcrel_offset */
804 2, /* size (0 = byte, 1 = short, 2 = long) */
806 FALSE, /* pc_relative */
808 complain_overflow_dont, /* complain_on_overflow */
809 bfd_elf_generic_reloc, /* special_function */
810 "R_PPC_TLSLD", /* name */
811 FALSE, /* partial_inplace */
814 FALSE), /* pcrel_offset */
816 /* Computes the load module index of the load module that contains the
817 definition of its TLS sym. */
818 HOWTO (R_PPC_DTPMOD32,
820 2, /* size (0 = byte, 1 = short, 2 = long) */
822 FALSE, /* pc_relative */
824 complain_overflow_dont, /* complain_on_overflow */
825 ppc_elf_unhandled_reloc, /* special_function */
826 "R_PPC_DTPMOD32", /* name */
827 FALSE, /* partial_inplace */
829 0xffffffff, /* dst_mask */
830 FALSE), /* pcrel_offset */
832 /* Computes a dtv-relative displacement, the difference between the value
833 of sym+add and the base address of the thread-local storage block that
834 contains the definition of sym, minus 0x8000. */
835 HOWTO (R_PPC_DTPREL32,
837 2, /* size (0 = byte, 1 = short, 2 = long) */
839 FALSE, /* pc_relative */
841 complain_overflow_dont, /* complain_on_overflow */
842 ppc_elf_unhandled_reloc, /* special_function */
843 "R_PPC_DTPREL32", /* name */
844 FALSE, /* partial_inplace */
846 0xffffffff, /* dst_mask */
847 FALSE), /* pcrel_offset */
849 /* A 16 bit dtprel reloc. */
850 HOWTO (R_PPC_DTPREL16,
852 1, /* size (0 = byte, 1 = short, 2 = long) */
854 FALSE, /* pc_relative */
856 complain_overflow_signed, /* complain_on_overflow */
857 ppc_elf_unhandled_reloc, /* special_function */
858 "R_PPC_DTPREL16", /* name */
859 FALSE, /* partial_inplace */
861 0xffff, /* dst_mask */
862 FALSE), /* pcrel_offset */
864 /* Like DTPREL16, but no overflow. */
865 HOWTO (R_PPC_DTPREL16_LO,
867 1, /* size (0 = byte, 1 = short, 2 = long) */
869 FALSE, /* pc_relative */
871 complain_overflow_dont, /* complain_on_overflow */
872 ppc_elf_unhandled_reloc, /* special_function */
873 "R_PPC_DTPREL16_LO", /* name */
874 FALSE, /* partial_inplace */
876 0xffff, /* dst_mask */
877 FALSE), /* pcrel_offset */
879 /* Like DTPREL16_LO, but next higher group of 16 bits. */
880 HOWTO (R_PPC_DTPREL16_HI,
882 1, /* size (0 = byte, 1 = short, 2 = long) */
884 FALSE, /* pc_relative */
886 complain_overflow_dont, /* complain_on_overflow */
887 ppc_elf_unhandled_reloc, /* special_function */
888 "R_PPC_DTPREL16_HI", /* name */
889 FALSE, /* partial_inplace */
891 0xffff, /* dst_mask */
892 FALSE), /* pcrel_offset */
894 /* Like DTPREL16_HI, but adjust for low 16 bits. */
895 HOWTO (R_PPC_DTPREL16_HA,
897 1, /* size (0 = byte, 1 = short, 2 = long) */
899 FALSE, /* pc_relative */
901 complain_overflow_dont, /* complain_on_overflow */
902 ppc_elf_unhandled_reloc, /* special_function */
903 "R_PPC_DTPREL16_HA", /* name */
904 FALSE, /* partial_inplace */
906 0xffff, /* dst_mask */
907 FALSE), /* pcrel_offset */
909 /* Computes a tp-relative displacement, the difference between the value of
910 sym+add and the value of the thread pointer (r13). */
911 HOWTO (R_PPC_TPREL32,
913 2, /* size (0 = byte, 1 = short, 2 = long) */
915 FALSE, /* pc_relative */
917 complain_overflow_dont, /* complain_on_overflow */
918 ppc_elf_unhandled_reloc, /* special_function */
919 "R_PPC_TPREL32", /* name */
920 FALSE, /* partial_inplace */
922 0xffffffff, /* dst_mask */
923 FALSE), /* pcrel_offset */
925 /* A 16 bit tprel reloc. */
926 HOWTO (R_PPC_TPREL16,
928 1, /* size (0 = byte, 1 = short, 2 = long) */
930 FALSE, /* pc_relative */
932 complain_overflow_signed, /* complain_on_overflow */
933 ppc_elf_unhandled_reloc, /* special_function */
934 "R_PPC_TPREL16", /* name */
935 FALSE, /* partial_inplace */
937 0xffff, /* dst_mask */
938 FALSE), /* pcrel_offset */
940 /* Like TPREL16, but no overflow. */
941 HOWTO (R_PPC_TPREL16_LO,
943 1, /* size (0 = byte, 1 = short, 2 = long) */
945 FALSE, /* pc_relative */
947 complain_overflow_dont, /* complain_on_overflow */
948 ppc_elf_unhandled_reloc, /* special_function */
949 "R_PPC_TPREL16_LO", /* name */
950 FALSE, /* partial_inplace */
952 0xffff, /* dst_mask */
953 FALSE), /* pcrel_offset */
955 /* Like TPREL16_LO, but next higher group of 16 bits. */
956 HOWTO (R_PPC_TPREL16_HI,
958 1, /* size (0 = byte, 1 = short, 2 = long) */
960 FALSE, /* pc_relative */
962 complain_overflow_dont, /* complain_on_overflow */
963 ppc_elf_unhandled_reloc, /* special_function */
964 "R_PPC_TPREL16_HI", /* name */
965 FALSE, /* partial_inplace */
967 0xffff, /* dst_mask */
968 FALSE), /* pcrel_offset */
970 /* Like TPREL16_HI, but adjust for low 16 bits. */
971 HOWTO (R_PPC_TPREL16_HA,
973 1, /* size (0 = byte, 1 = short, 2 = long) */
975 FALSE, /* pc_relative */
977 complain_overflow_dont, /* complain_on_overflow */
978 ppc_elf_unhandled_reloc, /* special_function */
979 "R_PPC_TPREL16_HA", /* name */
980 FALSE, /* partial_inplace */
982 0xffff, /* dst_mask */
983 FALSE), /* pcrel_offset */
985 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
986 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
987 to the first entry. */
988 HOWTO (R_PPC_GOT_TLSGD16,
990 1, /* size (0 = byte, 1 = short, 2 = long) */
992 FALSE, /* pc_relative */
994 complain_overflow_signed, /* complain_on_overflow */
995 ppc_elf_unhandled_reloc, /* special_function */
996 "R_PPC_GOT_TLSGD16", /* name */
997 FALSE, /* partial_inplace */
999 0xffff, /* dst_mask */
1000 FALSE), /* pcrel_offset */
1002 /* Like GOT_TLSGD16, but no overflow. */
1003 HOWTO (R_PPC_GOT_TLSGD16_LO,
1005 1, /* size (0 = byte, 1 = short, 2 = long) */
1007 FALSE, /* pc_relative */
1009 complain_overflow_dont, /* complain_on_overflow */
1010 ppc_elf_unhandled_reloc, /* special_function */
1011 "R_PPC_GOT_TLSGD16_LO", /* name */
1012 FALSE, /* partial_inplace */
1014 0xffff, /* dst_mask */
1015 FALSE), /* pcrel_offset */
1017 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1018 HOWTO (R_PPC_GOT_TLSGD16_HI,
1019 16, /* rightshift */
1020 1, /* size (0 = byte, 1 = short, 2 = long) */
1022 FALSE, /* pc_relative */
1024 complain_overflow_dont, /* complain_on_overflow */
1025 ppc_elf_unhandled_reloc, /* special_function */
1026 "R_PPC_GOT_TLSGD16_HI", /* name */
1027 FALSE, /* partial_inplace */
1029 0xffff, /* dst_mask */
1030 FALSE), /* pcrel_offset */
1032 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1033 HOWTO (R_PPC_GOT_TLSGD16_HA,
1034 16, /* rightshift */
1035 1, /* size (0 = byte, 1 = short, 2 = long) */
1037 FALSE, /* pc_relative */
1039 complain_overflow_dont, /* complain_on_overflow */
1040 ppc_elf_unhandled_reloc, /* special_function */
1041 "R_PPC_GOT_TLSGD16_HA", /* name */
1042 FALSE, /* partial_inplace */
1044 0xffff, /* dst_mask */
1045 FALSE), /* pcrel_offset */
1047 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1048 with values (sym+add)@dtpmod and zero, and computes the offset to the
1050 HOWTO (R_PPC_GOT_TLSLD16,
1052 1, /* size (0 = byte, 1 = short, 2 = long) */
1054 FALSE, /* pc_relative */
1056 complain_overflow_signed, /* complain_on_overflow */
1057 ppc_elf_unhandled_reloc, /* special_function */
1058 "R_PPC_GOT_TLSLD16", /* name */
1059 FALSE, /* partial_inplace */
1061 0xffff, /* dst_mask */
1062 FALSE), /* pcrel_offset */
1064 /* Like GOT_TLSLD16, but no overflow. */
1065 HOWTO (R_PPC_GOT_TLSLD16_LO,
1067 1, /* size (0 = byte, 1 = short, 2 = long) */
1069 FALSE, /* pc_relative */
1071 complain_overflow_dont, /* complain_on_overflow */
1072 ppc_elf_unhandled_reloc, /* special_function */
1073 "R_PPC_GOT_TLSLD16_LO", /* name */
1074 FALSE, /* partial_inplace */
1076 0xffff, /* dst_mask */
1077 FALSE), /* pcrel_offset */
1079 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1080 HOWTO (R_PPC_GOT_TLSLD16_HI,
1081 16, /* rightshift */
1082 1, /* size (0 = byte, 1 = short, 2 = long) */
1084 FALSE, /* pc_relative */
1086 complain_overflow_dont, /* complain_on_overflow */
1087 ppc_elf_unhandled_reloc, /* special_function */
1088 "R_PPC_GOT_TLSLD16_HI", /* name */
1089 FALSE, /* partial_inplace */
1091 0xffff, /* dst_mask */
1092 FALSE), /* pcrel_offset */
1094 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1095 HOWTO (R_PPC_GOT_TLSLD16_HA,
1096 16, /* rightshift */
1097 1, /* size (0 = byte, 1 = short, 2 = long) */
1099 FALSE, /* pc_relative */
1101 complain_overflow_dont, /* complain_on_overflow */
1102 ppc_elf_unhandled_reloc, /* special_function */
1103 "R_PPC_GOT_TLSLD16_HA", /* name */
1104 FALSE, /* partial_inplace */
1106 0xffff, /* dst_mask */
1107 FALSE), /* pcrel_offset */
1109 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1110 the offset to the entry. */
1111 HOWTO (R_PPC_GOT_DTPREL16,
1113 1, /* size (0 = byte, 1 = short, 2 = long) */
1115 FALSE, /* pc_relative */
1117 complain_overflow_signed, /* complain_on_overflow */
1118 ppc_elf_unhandled_reloc, /* special_function */
1119 "R_PPC_GOT_DTPREL16", /* name */
1120 FALSE, /* partial_inplace */
1122 0xffff, /* dst_mask */
1123 FALSE), /* pcrel_offset */
1125 /* Like GOT_DTPREL16, but no overflow. */
1126 HOWTO (R_PPC_GOT_DTPREL16_LO,
1128 1, /* size (0 = byte, 1 = short, 2 = long) */
1130 FALSE, /* pc_relative */
1132 complain_overflow_dont, /* complain_on_overflow */
1133 ppc_elf_unhandled_reloc, /* special_function */
1134 "R_PPC_GOT_DTPREL16_LO", /* name */
1135 FALSE, /* partial_inplace */
1137 0xffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
1140 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1141 HOWTO (R_PPC_GOT_DTPREL16_HI,
1142 16, /* rightshift */
1143 1, /* size (0 = byte, 1 = short, 2 = long) */
1145 FALSE, /* pc_relative */
1147 complain_overflow_dont, /* complain_on_overflow */
1148 ppc_elf_unhandled_reloc, /* special_function */
1149 "R_PPC_GOT_DTPREL16_HI", /* name */
1150 FALSE, /* partial_inplace */
1152 0xffff, /* dst_mask */
1153 FALSE), /* pcrel_offset */
1155 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1156 HOWTO (R_PPC_GOT_DTPREL16_HA,
1157 16, /* rightshift */
1158 1, /* size (0 = byte, 1 = short, 2 = long) */
1160 FALSE, /* pc_relative */
1162 complain_overflow_dont, /* complain_on_overflow */
1163 ppc_elf_unhandled_reloc, /* special_function */
1164 "R_PPC_GOT_DTPREL16_HA", /* name */
1165 FALSE, /* partial_inplace */
1167 0xffff, /* dst_mask */
1168 FALSE), /* pcrel_offset */
1170 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1171 offset to the entry. */
1172 HOWTO (R_PPC_GOT_TPREL16,
1174 1, /* size (0 = byte, 1 = short, 2 = long) */
1176 FALSE, /* pc_relative */
1178 complain_overflow_signed, /* complain_on_overflow */
1179 ppc_elf_unhandled_reloc, /* special_function */
1180 "R_PPC_GOT_TPREL16", /* name */
1181 FALSE, /* partial_inplace */
1183 0xffff, /* dst_mask */
1184 FALSE), /* pcrel_offset */
1186 /* Like GOT_TPREL16, but no overflow. */
1187 HOWTO (R_PPC_GOT_TPREL16_LO,
1189 1, /* size (0 = byte, 1 = short, 2 = long) */
1191 FALSE, /* pc_relative */
1193 complain_overflow_dont, /* complain_on_overflow */
1194 ppc_elf_unhandled_reloc, /* special_function */
1195 "R_PPC_GOT_TPREL16_LO", /* name */
1196 FALSE, /* partial_inplace */
1198 0xffff, /* dst_mask */
1199 FALSE), /* pcrel_offset */
1201 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1202 HOWTO (R_PPC_GOT_TPREL16_HI,
1203 16, /* rightshift */
1204 1, /* size (0 = byte, 1 = short, 2 = long) */
1206 FALSE, /* pc_relative */
1208 complain_overflow_dont, /* complain_on_overflow */
1209 ppc_elf_unhandled_reloc, /* special_function */
1210 "R_PPC_GOT_TPREL16_HI", /* name */
1211 FALSE, /* partial_inplace */
1213 0xffff, /* dst_mask */
1214 FALSE), /* pcrel_offset */
1216 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1217 HOWTO (R_PPC_GOT_TPREL16_HA,
1218 16, /* rightshift */
1219 1, /* size (0 = byte, 1 = short, 2 = long) */
1221 FALSE, /* pc_relative */
1223 complain_overflow_dont, /* complain_on_overflow */
1224 ppc_elf_unhandled_reloc, /* special_function */
1225 "R_PPC_GOT_TPREL16_HA", /* name */
1226 FALSE, /* partial_inplace */
1228 0xffff, /* dst_mask */
1229 FALSE), /* pcrel_offset */
1231 /* The remaining relocs are from the Embedded ELF ABI, and are not
1232 in the SVR4 ELF ABI. */
1234 /* 32 bit value resulting from the addend minus the symbol. */
1235 HOWTO (R_PPC_EMB_NADDR32, /* type */
1237 2, /* size (0 = byte, 1 = short, 2 = long) */
1239 FALSE, /* pc_relative */
1241 complain_overflow_dont, /* complain_on_overflow */
1242 bfd_elf_generic_reloc, /* special_function */
1243 "R_PPC_EMB_NADDR32", /* name */
1244 FALSE, /* partial_inplace */
1246 0xffffffff, /* dst_mask */
1247 FALSE), /* pcrel_offset */
1249 /* 16 bit value resulting from the addend minus the symbol. */
1250 HOWTO (R_PPC_EMB_NADDR16, /* type */
1252 1, /* size (0 = byte, 1 = short, 2 = long) */
1254 FALSE, /* pc_relative */
1256 complain_overflow_signed, /* complain_on_overflow */
1257 bfd_elf_generic_reloc, /* special_function */
1258 "R_PPC_EMB_NADDR16", /* name */
1259 FALSE, /* partial_inplace */
1261 0xffff, /* dst_mask */
1262 FALSE), /* pcrel_offset */
1264 /* 16 bit value resulting from the addend minus the symbol. */
1265 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1267 1, /* size (0 = byte, 1 = short, 2 = long) */
1269 FALSE, /* pc_relative */
1271 complain_overflow_dont,/* complain_on_overflow */
1272 bfd_elf_generic_reloc, /* special_function */
1273 "R_PPC_EMB_ADDR16_LO", /* name */
1274 FALSE, /* partial_inplace */
1276 0xffff, /* dst_mask */
1277 FALSE), /* pcrel_offset */
1279 /* The high order 16 bits of the addend minus the symbol. */
1280 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1281 16, /* rightshift */
1282 1, /* size (0 = byte, 1 = short, 2 = long) */
1284 FALSE, /* pc_relative */
1286 complain_overflow_dont, /* complain_on_overflow */
1287 bfd_elf_generic_reloc, /* special_function */
1288 "R_PPC_EMB_NADDR16_HI", /* name */
1289 FALSE, /* partial_inplace */
1291 0xffff, /* dst_mask */
1292 FALSE), /* pcrel_offset */
1294 /* The high order 16 bits of the result of the addend minus the address,
1295 plus 1 if the contents of the low 16 bits, treated as a signed number,
1297 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1298 16, /* rightshift */
1299 1, /* size (0 = byte, 1 = short, 2 = long) */
1301 FALSE, /* pc_relative */
1303 complain_overflow_dont, /* complain_on_overflow */
1304 ppc_elf_addr16_ha_reloc, /* special_function */
1305 "R_PPC_EMB_NADDR16_HA", /* name */
1306 FALSE, /* partial_inplace */
1308 0xffff, /* dst_mask */
1309 FALSE), /* pcrel_offset */
1311 /* 16 bit value resulting from allocating a 4 byte word to hold an
1312 address in the .sdata section, and returning the offset from
1313 _SDA_BASE_ for that relocation. */
1314 HOWTO (R_PPC_EMB_SDAI16, /* type */
1316 1, /* size (0 = byte, 1 = short, 2 = long) */
1318 FALSE, /* pc_relative */
1320 complain_overflow_signed, /* complain_on_overflow */
1321 bfd_elf_generic_reloc, /* special_function */
1322 "R_PPC_EMB_SDAI16", /* name */
1323 FALSE, /* partial_inplace */
1325 0xffff, /* dst_mask */
1326 FALSE), /* pcrel_offset */
1328 /* 16 bit value resulting from allocating a 4 byte word to hold an
1329 address in the .sdata2 section, and returning the offset from
1330 _SDA2_BASE_ for that relocation. */
1331 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1335 FALSE, /* pc_relative */
1337 complain_overflow_signed, /* complain_on_overflow */
1338 bfd_elf_generic_reloc, /* special_function */
1339 "R_PPC_EMB_SDA2I16", /* name */
1340 FALSE, /* partial_inplace */
1342 0xffff, /* dst_mask */
1343 FALSE), /* pcrel_offset */
1345 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1346 small data items. */
1347 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1349 1, /* size (0 = byte, 1 = short, 2 = long) */
1351 FALSE, /* pc_relative */
1353 complain_overflow_signed, /* complain_on_overflow */
1354 bfd_elf_generic_reloc, /* special_function */
1355 "R_PPC_EMB_SDA2REL", /* name */
1356 FALSE, /* partial_inplace */
1358 0xffff, /* dst_mask */
1359 FALSE), /* pcrel_offset */
1361 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1362 signed offset from the appropriate base, and filling in the register
1363 field with the appropriate register (0, 2, or 13). */
1364 HOWTO (R_PPC_EMB_SDA21, /* type */
1366 2, /* size (0 = byte, 1 = short, 2 = long) */
1368 FALSE, /* pc_relative */
1370 complain_overflow_signed, /* complain_on_overflow */
1371 bfd_elf_generic_reloc, /* special_function */
1372 "R_PPC_EMB_SDA21", /* name */
1373 FALSE, /* partial_inplace */
1375 0xffff, /* dst_mask */
1376 FALSE), /* pcrel_offset */
1378 /* Relocation not handled: R_PPC_EMB_MRKREF */
1379 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1380 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1381 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1382 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1383 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1385 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1386 in the 16 bit signed offset from the appropriate base, and filling in the
1387 register field with the appropriate register (0, 2, or 13). */
1388 HOWTO (R_PPC_EMB_RELSDA, /* type */
1390 1, /* size (0 = byte, 1 = short, 2 = long) */
1392 FALSE, /* pc_relative */
1394 complain_overflow_signed, /* complain_on_overflow */
1395 bfd_elf_generic_reloc, /* special_function */
1396 "R_PPC_EMB_RELSDA", /* name */
1397 FALSE, /* partial_inplace */
1399 0xffff, /* dst_mask */
1400 FALSE), /* pcrel_offset */
1402 /* A relative 8 bit branch. */
1403 HOWTO (R_PPC_VLE_REL8, /* type */
1405 1, /* size (0 = byte, 1 = short, 2 = long) */
1407 TRUE, /* pc_relative */
1409 complain_overflow_signed, /* complain_on_overflow */
1410 bfd_elf_generic_reloc, /* special_function */
1411 "R_PPC_VLE_REL8", /* name */
1412 FALSE, /* partial_inplace */
1414 0xff, /* dst_mask */
1415 TRUE), /* pcrel_offset */
1417 /* A relative 15 bit branch. */
1418 HOWTO (R_PPC_VLE_REL15, /* type */
1420 2, /* size (0 = byte, 1 = short, 2 = long) */
1422 TRUE, /* pc_relative */
1424 complain_overflow_signed, /* complain_on_overflow */
1425 bfd_elf_generic_reloc, /* special_function */
1426 "R_PPC_VLE_REL15", /* name */
1427 FALSE, /* partial_inplace */
1429 0xfe, /* dst_mask */
1430 TRUE), /* pcrel_offset */
1432 /* A relative 24 bit branch. */
1433 HOWTO (R_PPC_VLE_REL24, /* type */
1435 2, /* size (0 = byte, 1 = short, 2 = long) */
1437 TRUE, /* pc_relative */
1439 complain_overflow_signed, /* complain_on_overflow */
1440 bfd_elf_generic_reloc, /* special_function */
1441 "R_PPC_VLE_REL24", /* name */
1442 FALSE, /* partial_inplace */
1444 0x1fffffe, /* dst_mask */
1445 TRUE), /* pcrel_offset */
1447 /* The 16 LSBS in split16a format. */
1448 HOWTO (R_PPC_VLE_LO16A, /* type */
1450 2, /* size (0 = byte, 1 = short, 2 = long) */
1452 FALSE, /* pc_relative */
1454 complain_overflow_dont, /* complain_on_overflow */
1455 bfd_elf_generic_reloc, /* special_function */
1456 "R_PPC_VLE_LO16A", /* name */
1457 FALSE, /* partial_inplace */
1459 0x1f007ff, /* dst_mask */
1460 FALSE), /* pcrel_offset */
1462 /* The 16 LSBS in split16d format. */
1463 HOWTO (R_PPC_VLE_LO16D, /* type */
1465 2, /* size (0 = byte, 1 = short, 2 = long) */
1467 FALSE, /* pc_relative */
1469 complain_overflow_dont, /* complain_on_overflow */
1470 bfd_elf_generic_reloc, /* special_function */
1471 "R_PPC_VLE_LO16D", /* name */
1472 FALSE, /* partial_inplace */
1474 0x1f07ff, /* dst_mask */
1475 FALSE), /* pcrel_offset */
1477 /* Bits 16-31 split16a format. */
1478 HOWTO (R_PPC_VLE_HI16A, /* type */
1479 16, /* rightshift */
1480 2, /* size (0 = byte, 1 = short, 2 = long) */
1482 FALSE, /* pc_relative */
1484 complain_overflow_dont, /* complain_on_overflow */
1485 bfd_elf_generic_reloc, /* special_function */
1486 "R_PPC_VLE_HI16A", /* name */
1487 FALSE, /* partial_inplace */
1489 0x1f007ff, /* dst_mask */
1490 FALSE), /* pcrel_offset */
1492 /* Bits 16-31 split16d format. */
1493 HOWTO (R_PPC_VLE_HI16D, /* type */
1494 16, /* rightshift */
1495 2, /* size (0 = byte, 1 = short, 2 = long) */
1497 FALSE, /* pc_relative */
1499 complain_overflow_dont, /* complain_on_overflow */
1500 bfd_elf_generic_reloc, /* special_function */
1501 "R_PPC_VLE_HI16D", /* name */
1502 FALSE, /* partial_inplace */
1504 0x1f07ff, /* dst_mask */
1505 FALSE), /* pcrel_offset */
1507 /* Bits 16-31 (High Adjusted) in split16a format. */
1508 HOWTO (R_PPC_VLE_HA16A, /* type */
1509 16, /* rightshift */
1510 2, /* size (0 = byte, 1 = short, 2 = long) */
1512 FALSE, /* pc_relative */
1514 complain_overflow_dont, /* complain_on_overflow */
1515 bfd_elf_generic_reloc, /* special_function */
1516 "R_PPC_VLE_HA16A", /* name */
1517 FALSE, /* partial_inplace */
1519 0x1f007ff, /* dst_mask */
1520 FALSE), /* pcrel_offset */
1522 /* Bits 16-31 (High Adjusted) in split16d format. */
1523 HOWTO (R_PPC_VLE_HA16D, /* type */
1524 16, /* rightshift */
1525 2, /* size (0 = byte, 1 = short, 2 = long) */
1527 FALSE, /* pc_relative */
1529 complain_overflow_dont, /* complain_on_overflow */
1530 bfd_elf_generic_reloc, /* special_function */
1531 "R_PPC_VLE_HA16D", /* name */
1532 FALSE, /* partial_inplace */
1534 0x1f07ff, /* dst_mask */
1535 FALSE), /* pcrel_offset */
1537 /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
1538 instructions. If the register base is 0 then the linker changes
1539 the e_add16i to an e_li instruction. */
1540 HOWTO (R_PPC_VLE_SDA21, /* type */
1542 2, /* size (0 = byte, 1 = short, 2 = long) */
1544 FALSE, /* pc_relative */
1546 complain_overflow_signed, /* complain_on_overflow */
1547 bfd_elf_generic_reloc, /* special_function */
1548 "R_PPC_VLE_SDA21", /* name */
1549 FALSE, /* partial_inplace */
1551 0xffff, /* dst_mask */
1552 FALSE), /* pcrel_offset */
1554 /* Like R_PPC_VLE_SDA21 but ignore overflow. */
1555 HOWTO (R_PPC_VLE_SDA21_LO, /* type */
1557 2, /* size (0 = byte, 1 = short, 2 = long) */
1559 FALSE, /* pc_relative */
1561 complain_overflow_dont, /* complain_on_overflow */
1562 bfd_elf_generic_reloc, /* special_function */
1563 "R_PPC_VLE_SDA21_LO", /* name */
1564 FALSE, /* partial_inplace */
1566 0xffff, /* dst_mask */
1567 FALSE), /* pcrel_offset */
1569 /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */
1570 HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
1572 2, /* size (0 = byte, 1 = short, 2 = long) */
1574 FALSE, /* pc_relative */
1576 complain_overflow_dont, /* complain_on_overflow */
1577 bfd_elf_generic_reloc, /* special_function */
1578 "R_PPC_VLE_SDAREL_LO16A", /* name */
1579 FALSE, /* partial_inplace */
1581 0x1f007ff, /* dst_mask */
1582 FALSE), /* pcrel_offset */
1584 /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */
1585 HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
1587 2, /* size (0 = byte, 1 = short, 2 = long) */
1589 FALSE, /* pc_relative */
1591 complain_overflow_dont, /* complain_on_overflow */
1592 bfd_elf_generic_reloc, /* special_function */
1593 "R_PPC_VLE_SDAREL_LO16D", /* name */
1594 FALSE, /* partial_inplace */
1596 0x1f07ff, /* dst_mask */
1597 FALSE), /* pcrel_offset */
1599 /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */
1600 HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
1601 16, /* rightshift */
1602 2, /* size (0 = byte, 1 = short, 2 = long) */
1604 FALSE, /* pc_relative */
1606 complain_overflow_dont, /* complain_on_overflow */
1607 bfd_elf_generic_reloc, /* special_function */
1608 "R_PPC_VLE_SDAREL_HI16A", /* name */
1609 FALSE, /* partial_inplace */
1611 0x1f007ff, /* dst_mask */
1612 FALSE), /* pcrel_offset */
1614 /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */
1615 HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
1616 16, /* rightshift */
1617 2, /* size (0 = byte, 1 = short, 2 = long) */
1619 FALSE, /* pc_relative */
1621 complain_overflow_dont, /* complain_on_overflow */
1622 bfd_elf_generic_reloc, /* special_function */
1623 "R_PPC_VLE_SDAREL_HI16D", /* name */
1624 FALSE, /* partial_inplace */
1626 0x1f07ff, /* dst_mask */
1627 FALSE), /* pcrel_offset */
1629 /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */
1630 HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
1631 16, /* rightshift */
1632 2, /* size (0 = byte, 1 = short, 2 = long) */
1634 FALSE, /* pc_relative */
1636 complain_overflow_dont, /* complain_on_overflow */
1637 bfd_elf_generic_reloc, /* special_function */
1638 "R_PPC_VLE_SDAREL_HA16A", /* name */
1639 FALSE, /* partial_inplace */
1641 0x1f007ff, /* dst_mask */
1642 FALSE), /* pcrel_offset */
1644 /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */
1645 HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
1646 16, /* rightshift */
1647 2, /* size (0 = byte, 1 = short, 2 = long) */
1649 FALSE, /* pc_relative */
1651 complain_overflow_dont, /* complain_on_overflow */
1652 bfd_elf_generic_reloc, /* special_function */
1653 "R_PPC_VLE_SDAREL_HA16D", /* name */
1654 FALSE, /* partial_inplace */
1656 0x1f07ff, /* dst_mask */
1657 FALSE), /* pcrel_offset */
1659 HOWTO (R_PPC_IRELATIVE, /* type */
1661 2, /* size (0 = byte, 1 = short, 2 = long) */
1663 FALSE, /* pc_relative */
1665 complain_overflow_dont, /* complain_on_overflow */
1666 bfd_elf_generic_reloc, /* special_function */
1667 "R_PPC_IRELATIVE", /* name */
1668 FALSE, /* partial_inplace */
1670 0xffffffff, /* dst_mask */
1671 FALSE), /* pcrel_offset */
1673 /* A 16 bit relative relocation. */
1674 HOWTO (R_PPC_REL16, /* type */
1676 1, /* size (0 = byte, 1 = short, 2 = long) */
1678 TRUE, /* pc_relative */
1680 complain_overflow_signed, /* complain_on_overflow */
1681 bfd_elf_generic_reloc, /* special_function */
1682 "R_PPC_REL16", /* name */
1683 FALSE, /* partial_inplace */
1685 0xffff, /* dst_mask */
1686 TRUE), /* pcrel_offset */
1688 /* A 16 bit relative relocation without overflow. */
1689 HOWTO (R_PPC_REL16_LO, /* type */
1691 1, /* size (0 = byte, 1 = short, 2 = long) */
1693 TRUE, /* pc_relative */
1695 complain_overflow_dont,/* complain_on_overflow */
1696 bfd_elf_generic_reloc, /* special_function */
1697 "R_PPC_REL16_LO", /* name */
1698 FALSE, /* partial_inplace */
1700 0xffff, /* dst_mask */
1701 TRUE), /* pcrel_offset */
1703 /* The high order 16 bits of a relative address. */
1704 HOWTO (R_PPC_REL16_HI, /* type */
1705 16, /* rightshift */
1706 1, /* size (0 = byte, 1 = short, 2 = long) */
1708 TRUE, /* pc_relative */
1710 complain_overflow_dont, /* complain_on_overflow */
1711 bfd_elf_generic_reloc, /* special_function */
1712 "R_PPC_REL16_HI", /* name */
1713 FALSE, /* partial_inplace */
1715 0xffff, /* dst_mask */
1716 TRUE), /* pcrel_offset */
1718 /* The high order 16 bits of a relative address, plus 1 if the contents of
1719 the low 16 bits, treated as a signed number, is negative. */
1720 HOWTO (R_PPC_REL16_HA, /* type */
1721 16, /* rightshift */
1722 1, /* size (0 = byte, 1 = short, 2 = long) */
1724 TRUE, /* pc_relative */
1726 complain_overflow_dont, /* complain_on_overflow */
1727 ppc_elf_addr16_ha_reloc, /* special_function */
1728 "R_PPC_REL16_HA", /* name */
1729 FALSE, /* partial_inplace */
1731 0xffff, /* dst_mask */
1732 TRUE), /* pcrel_offset */
1734 /* Like R_PPC_REL16_HA but for split field in addpcis. */
1735 HOWTO (R_PPC_REL16DX_HA, /* type */
1736 16, /* rightshift */
1737 2, /* size (0 = byte, 1 = short, 2 = long) */
1739 TRUE, /* pc_relative */
1741 complain_overflow_signed, /* complain_on_overflow */
1742 ppc_elf_addr16_ha_reloc, /* special_function */
1743 "R_PPC_REL16DX_HA", /* name */
1744 FALSE, /* partial_inplace */
1746 0x1fffc1, /* dst_mask */
1747 TRUE), /* pcrel_offset */
1749 /* GNU extension to record C++ vtable hierarchy. */
1750 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1752 0, /* size (0 = byte, 1 = short, 2 = long) */
1754 FALSE, /* pc_relative */
1756 complain_overflow_dont, /* complain_on_overflow */
1757 NULL, /* special_function */
1758 "R_PPC_GNU_VTINHERIT", /* name */
1759 FALSE, /* partial_inplace */
1762 FALSE), /* pcrel_offset */
1764 /* GNU extension to record C++ vtable member usage. */
1765 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1767 0, /* size (0 = byte, 1 = short, 2 = long) */
1769 FALSE, /* pc_relative */
1771 complain_overflow_dont, /* complain_on_overflow */
1772 NULL, /* special_function */
1773 "R_PPC_GNU_VTENTRY", /* name */
1774 FALSE, /* partial_inplace */
1777 FALSE), /* pcrel_offset */
1779 /* Phony reloc to handle AIX style TOC entries. */
1780 HOWTO (R_PPC_TOC16, /* type */
1782 1, /* size (0 = byte, 1 = short, 2 = long) */
1784 FALSE, /* pc_relative */
1786 complain_overflow_signed, /* complain_on_overflow */
1787 bfd_elf_generic_reloc, /* special_function */
1788 "R_PPC_TOC16", /* name */
1789 FALSE, /* partial_inplace */
1791 0xffff, /* dst_mask */
1792 FALSE), /* pcrel_offset */
1795 /* External 32-bit PPC structure for PRPSINFO. This structure is
1796 ABI-defined, thus we choose to use char arrays here in order to
1797 avoid dealing with different types in different architectures.
1799 The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
1800 most non-PPC architectures use `short int'.
1802 This structure will ultimately be written in the corefile's note
1803 section, as the PRPSINFO. */
1805 struct elf_external_ppc_linux_prpsinfo32
1807 char pr_state; /* Numeric process state. */
1808 char pr_sname; /* Char for pr_state. */
1809 char pr_zomb; /* Zombie. */
1810 char pr_nice; /* Nice val. */
1811 char pr_flag[4]; /* Flags. */
1818 char pr_fname[16]; /* Filename of executable. */
1819 char pr_psargs[80]; /* Initial part of arg list. */
1822 /* Helper macro to swap (properly handling endianess) things from the
1823 `elf_internal_prpsinfo' structure to the `elf_external_ppc_prpsinfo32'
1826 Note that FROM should be a pointer, and TO should be the explicit type. */
1828 #define PPC_LINUX_PRPSINFO32_SWAP_FIELDS(abfd, from, to) \
1831 H_PUT_8 (abfd, from->pr_state, &to.pr_state); \
1832 H_PUT_8 (abfd, from->pr_sname, &to.pr_sname); \
1833 H_PUT_8 (abfd, from->pr_zomb, &to.pr_zomb); \
1834 H_PUT_8 (abfd, from->pr_nice, &to.pr_nice); \
1835 H_PUT_32 (abfd, from->pr_flag, to.pr_flag); \
1836 H_PUT_32 (abfd, from->pr_uid, to.pr_uid); \
1837 H_PUT_32 (abfd, from->pr_gid, to.pr_gid); \
1838 H_PUT_32 (abfd, from->pr_pid, to.pr_pid); \
1839 H_PUT_32 (abfd, from->pr_ppid, to.pr_ppid); \
1840 H_PUT_32 (abfd, from->pr_pgrp, to.pr_pgrp); \
1841 H_PUT_32 (abfd, from->pr_sid, to.pr_sid); \
1842 strncpy (to.pr_fname, from->pr_fname, sizeof (to.pr_fname)); \
1843 strncpy (to.pr_psargs, from->pr_psargs, sizeof (to.pr_psargs)); \
1847 /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1850 ppc_elf_howto_init (void)
1852 unsigned int i, type;
1855 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1858 type = ppc_elf_howto_raw[i].type;
1859 if (type >= (sizeof (ppc_elf_howto_table)
1860 / sizeof (ppc_elf_howto_table[0])))
1862 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1866 static reloc_howto_type *
1867 ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1868 bfd_reloc_code_real_type code)
1870 enum elf_ppc_reloc_type r;
1872 /* Initialize howto table if not already done. */
1873 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1874 ppc_elf_howto_init ();
1881 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1882 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1883 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1884 case BFD_RELOC_PPC64_ADDR16_DS:
1885 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1886 case BFD_RELOC_PPC64_ADDR16_LO_DS:
1887 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1888 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1889 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1890 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1891 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1892 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1893 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1894 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1895 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1896 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1897 case BFD_RELOC_PPC64_GOT16_DS:
1898 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1899 case BFD_RELOC_PPC64_GOT16_LO_DS:
1900 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1901 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1902 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1903 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1904 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1905 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1906 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1907 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1908 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1909 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1910 case BFD_RELOC_PPC64_PLT16_LO_DS:
1911 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1912 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1913 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1914 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1915 case BFD_RELOC_PPC64_SECTOFF_DS:
1916 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1917 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
1918 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1919 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1920 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1921 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1922 case BFD_RELOC_PPC64_TOC16_DS:
1923 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1924 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
1925 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1926 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
1927 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1928 case BFD_RELOC_PPC64_TPREL16_DS:
1929 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1930 case BFD_RELOC_PPC64_TPREL16_LO_DS:
1931 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1932 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1933 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1934 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1935 case BFD_RELOC_PPC64_DTPREL16_DS:
1936 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1937 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
1938 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1939 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1940 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1941 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1942 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1943 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1944 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1945 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1946 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1947 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1948 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1949 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1950 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1951 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1952 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1953 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1954 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1955 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1956 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1957 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1958 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1959 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1960 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1961 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1962 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1963 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1964 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1965 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1966 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1967 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1968 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1969 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1970 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1971 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1972 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1973 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
1974 case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
1975 case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
1976 case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
1977 case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
1978 case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
1979 case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
1980 case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
1981 case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
1982 case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
1983 case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
1984 case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
1985 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
1986 r = R_PPC_VLE_SDAREL_LO16A;
1988 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
1989 r = R_PPC_VLE_SDAREL_LO16D;
1991 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
1992 r = R_PPC_VLE_SDAREL_HI16A;
1994 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
1995 r = R_PPC_VLE_SDAREL_HI16D;
1997 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
1998 r = R_PPC_VLE_SDAREL_HA16A;
2000 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
2001 r = R_PPC_VLE_SDAREL_HA16D;
2003 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
2004 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
2005 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
2006 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
2007 case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC_REL16DX_HA; break;
2008 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
2009 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
2012 return ppc_elf_howto_table[r];
2015 static reloc_howto_type *
2016 ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2022 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
2024 if (ppc_elf_howto_raw[i].name != NULL
2025 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
2026 return &ppc_elf_howto_raw[i];
2031 /* Set the howto pointer for a PowerPC ELF reloc. */
2034 ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
2036 Elf_Internal_Rela *dst)
2038 unsigned int r_type;
2040 /* Initialize howto table if not already done. */
2041 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2042 ppc_elf_howto_init ();
2044 r_type = ELF32_R_TYPE (dst->r_info);
2045 if (r_type >= R_PPC_max)
2047 (*_bfd_error_handler) (_("%B: unrecognised PPC reloc number: %d"),
2049 bfd_set_error (bfd_error_bad_value);
2050 r_type = R_PPC_NONE;
2052 cache_ptr->howto = ppc_elf_howto_table[r_type];
2054 /* Just because the above assert didn't trigger doesn't mean that
2055 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
2056 if (!cache_ptr->howto)
2058 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2060 bfd_set_error (bfd_error_bad_value);
2062 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
2066 /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
2068 static bfd_reloc_status_type
2069 ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
2070 arelent *reloc_entry,
2072 void *data ATTRIBUTE_UNUSED,
2073 asection *input_section,
2075 char **error_message ATTRIBUTE_UNUSED)
2077 enum elf_ppc_reloc_type r_type;
2079 bfd_size_type octets;
2082 if (output_bfd != NULL)
2084 reloc_entry->address += input_section->output_offset;
2085 return bfd_reloc_ok;
2088 reloc_entry->addend += 0x8000;
2089 r_type = reloc_entry->howto->type;
2090 if (r_type != R_PPC_REL16DX_HA)
2091 return bfd_reloc_continue;
2094 if (!bfd_is_com_section (symbol->section))
2095 value = symbol->value;
2096 value += (reloc_entry->addend
2097 + symbol->section->output_offset
2098 + symbol->section->output_section->vma);
2099 value -= (reloc_entry->address
2100 + input_section->output_offset
2101 + input_section->output_section->vma);
2104 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2105 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2107 insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
2108 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2109 return bfd_reloc_ok;
2112 static bfd_reloc_status_type
2113 ppc_elf_unhandled_reloc (bfd *abfd,
2114 arelent *reloc_entry,
2117 asection *input_section,
2119 char **error_message)
2121 /* If this is a relocatable link (output_bfd test tells us), just
2122 call the generic function. Any adjustment will be done at final
2124 if (output_bfd != NULL)
2125 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2126 input_section, output_bfd, error_message);
2128 if (error_message != NULL)
2130 static char buf[60];
2131 sprintf (buf, _("generic linker can't handle %s"),
2132 reloc_entry->howto->name);
2133 *error_message = buf;
2135 return bfd_reloc_dangerous;
2138 /* Sections created by the linker. */
2140 typedef struct elf_linker_section
2142 /* Pointer to the bfd section. */
2146 /* Associated bss section name. */
2147 const char *bss_name;
2148 /* Associated symbol name. */
2149 const char *sym_name;
2150 /* Associated symbol. */
2151 struct elf_link_hash_entry *sym;
2152 } elf_linker_section_t;
2154 /* Linked list of allocated pointer entries. This hangs off of the
2155 symbol lists, and provides allows us to return different pointers,
2156 based on different addend's. */
2158 typedef struct elf_linker_section_pointers
2160 /* next allocated pointer for this symbol */
2161 struct elf_linker_section_pointers *next;
2162 /* offset of pointer from beginning of section */
2166 /* which linker section this is */
2167 elf_linker_section_t *lsect;
2168 } elf_linker_section_pointers_t;
2170 struct ppc_elf_obj_tdata
2172 struct elf_obj_tdata elf;
2174 /* A mapping from local symbols to offsets into the various linker
2175 sections added. This is index by the symbol index. */
2176 elf_linker_section_pointers_t **linker_section_pointers;
2178 /* Flags used to auto-detect plt type. */
2179 unsigned int makes_plt_call : 1;
2180 unsigned int has_rel16 : 1;
2183 #define ppc_elf_tdata(bfd) \
2184 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
2186 #define elf_local_ptr_offsets(bfd) \
2187 (ppc_elf_tdata (bfd)->linker_section_pointers)
2189 #define is_ppc_elf(bfd) \
2190 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2191 && elf_object_id (bfd) == PPC32_ELF_DATA)
2193 /* Override the generic function because we store some extras. */
2196 ppc_elf_mkobject (bfd *abfd)
2198 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
2202 /* Fix bad default arch selected for a 32 bit input bfd when the
2203 default is 64 bit. */
2206 ppc_elf_object_p (bfd *abfd)
2208 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
2210 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2212 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2214 /* Relies on arch after 64 bit default being 32 bit default. */
2215 abfd->arch_info = abfd->arch_info->next;
2216 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2222 /* Function to set whether a module needs the -mrelocatable bit set. */
2225 ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2227 BFD_ASSERT (!elf_flags_init (abfd)
2228 || elf_elfheader (abfd)->e_flags == flags);
2230 elf_elfheader (abfd)->e_flags = flags;
2231 elf_flags_init (abfd) = TRUE;
2235 /* Support for core dump NOTE sections. */
2238 ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2243 switch (note->descsz)
2248 case 268: /* Linux/PPC. */
2250 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
2253 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
2262 /* Make a ".reg/999" section. */
2263 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2264 size, note->descpos + offset);
2268 ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2270 switch (note->descsz)
2275 case 128: /* Linux/PPC elf_prpsinfo. */
2276 elf_tdata (abfd)->core->pid
2277 = bfd_get_32 (abfd, note->descdata + 16);
2278 elf_tdata (abfd)->core->program
2279 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
2280 elf_tdata (abfd)->core->command
2281 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2284 /* Note that for some reason, a spurious space is tacked
2285 onto the end of the args in some (at least one anyway)
2286 implementations, so strip it off if it exists. */
2289 char *command = elf_tdata (abfd)->core->command;
2290 int n = strlen (command);
2292 if (0 < n && command[n - 1] == ' ')
2293 command[n - 1] = '\0';
2300 elfcore_write_ppc_linux_prpsinfo32 (bfd *abfd, char *buf, int *bufsiz,
2301 const struct elf_internal_linux_prpsinfo *prpsinfo)
2303 struct elf_external_ppc_linux_prpsinfo32 data;
2305 memset (&data, 0, sizeof (data));
2306 PPC_LINUX_PRPSINFO32_SWAP_FIELDS (abfd, prpsinfo, data);
2308 return elfcore_write_note (abfd, buf, bufsiz,
2309 "CORE", NT_PRPSINFO, &data, sizeof (data));
2313 ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
2325 va_start (ap, note_type);
2326 memset (data, 0, sizeof (data));
2327 strncpy (data + 32, va_arg (ap, const char *), 16);
2328 strncpy (data + 48, va_arg (ap, const char *), 80);
2330 return elfcore_write_note (abfd, buf, bufsiz,
2331 "CORE", note_type, data, sizeof (data));
2342 va_start (ap, note_type);
2343 memset (data, 0, 72);
2344 pid = va_arg (ap, long);
2345 bfd_put_32 (abfd, pid, data + 24);
2346 cursig = va_arg (ap, int);
2347 bfd_put_16 (abfd, cursig, data + 12);
2348 greg = va_arg (ap, const void *);
2349 memcpy (data + 72, greg, 192);
2350 memset (data + 264, 0, 4);
2352 return elfcore_write_note (abfd, buf, bufsiz,
2353 "CORE", note_type, data, sizeof (data));
2359 ppc_elf_lookup_section_flags (char *flag_name)
2362 if (!strcmp (flag_name, "SHF_PPC_VLE"))
2368 /* Add the VLE flag if required. */
2371 ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr)
2373 if (bfd_get_mach (abfd) == bfd_mach_ppc_vle
2374 && (shdr->sh_flags & SHF_EXECINSTR) != 0)
2375 shdr->sh_flags |= SHF_PPC_VLE;
2380 /* Return address for Ith PLT stub in section PLT, for relocation REL
2381 or (bfd_vma) -1 if it should not be included. */
2384 ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
2385 const asection *plt ATTRIBUTE_UNUSED,
2388 return rel->address;
2391 /* Handle a PowerPC specific section when reading an object file. This
2392 is called when bfd_section_from_shdr finds a section with an unknown
2396 ppc_elf_section_from_shdr (bfd *abfd,
2397 Elf_Internal_Shdr *hdr,
2404 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
2407 newsect = hdr->bfd_section;
2408 flags = bfd_get_section_flags (abfd, newsect);
2409 if (hdr->sh_flags & SHF_EXCLUDE)
2410 flags |= SEC_EXCLUDE;
2412 if (hdr->sh_type == SHT_ORDERED)
2413 flags |= SEC_SORT_ENTRIES;
2415 bfd_set_section_flags (abfd, newsect, flags);
2419 /* Set up any other section flags and such that may be necessary. */
2422 ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2423 Elf_Internal_Shdr *shdr,
2426 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2427 shdr->sh_type = SHT_ORDERED;
2432 /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2433 need to bump up the number of section headers. */
2436 ppc_elf_additional_program_headers (bfd *abfd,
2437 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2442 s = bfd_get_section_by_name (abfd, ".sbss2");
2443 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2446 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2447 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2453 /* Modify the segment map for VLE executables. */
2456 ppc_elf_modify_segment_map (bfd *abfd,
2457 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2459 struct elf_segment_map *m, *n;
2462 bfd_boolean sect0_vle, sectj_vle;
2464 /* At this point in the link, output sections have already been sorted by
2465 LMA and assigned to segments. All that is left to do is to ensure
2466 there is no mixing of VLE & non-VLE sections in a text segment.
2467 If we find that case, we split the segment.
2468 We maintain the original output section order. */
2470 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
2475 sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0;
2476 for (j = 1; j < m->count; ++j)
2478 sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0;
2480 if (sectj_vle != sect0_vle)
2486 /* sections 0..j-1 stay in this (current) segment,
2487 the remainder are put in a new segment.
2488 The scan resumes with the new segment. */
2490 /* Fix the new segment. */
2491 amt = sizeof (struct elf_segment_map);
2492 amt += (m->count - j - 1) * sizeof (asection *);
2493 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2497 n->p_type = PT_LOAD;
2498 n->p_flags = PF_X | PF_R;
2500 n->p_flags |= PF_PPC_VLE;
2501 n->count = m->count - j;
2502 for (k = 0; k < n->count; ++k)
2504 n->sections[k] = m->sections[j+k];
2505 m->sections[j+k] = NULL;
2510 /* Fix the current segment */
2517 /* Add extra PPC sections -- Note, for now, make .sbss2 and
2518 .PPC.EMB.sbss0 a normal section, and not a bss section so
2519 that the linker doesn't crater when trying to make more than
2522 static const struct bfd_elf_special_section ppc_elf_special_sections[] =
2524 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2525 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2526 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2527 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2528 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2529 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2530 { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 },
2531 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2532 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2533 { NULL, 0, 0, 0, 0 }
2536 /* This is what we want for new plt/got. */
2537 static struct bfd_elf_special_section ppc_alt_plt =
2538 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
2540 static const struct bfd_elf_special_section *
2541 ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
2543 const struct bfd_elf_special_section *ssect;
2545 /* See if this is one of the special sections. */
2546 if (sec->name == NULL)
2549 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2553 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2554 ssect = &ppc_alt_plt;
2558 return _bfd_elf_get_sec_type_attr (abfd, sec);
2561 /* Very simple linked list structure for recording apuinfo values. */
2562 typedef struct apuinfo_list
2564 struct apuinfo_list *next;
2565 unsigned long value;
2569 static apuinfo_list *head;
2570 static bfd_boolean apuinfo_set;
2573 apuinfo_list_init (void)
2576 apuinfo_set = FALSE;
2580 apuinfo_list_add (unsigned long value)
2582 apuinfo_list *entry = head;
2584 while (entry != NULL)
2586 if (entry->value == value)
2588 entry = entry->next;
2591 entry = bfd_malloc (sizeof (* entry));
2595 entry->value = value;
2601 apuinfo_list_length (void)
2603 apuinfo_list *entry;
2604 unsigned long count;
2606 for (entry = head, count = 0;
2608 entry = entry->next)
2614 static inline unsigned long
2615 apuinfo_list_element (unsigned long number)
2617 apuinfo_list * entry;
2621 entry = entry->next)
2624 return entry ? entry->value : 0;
2628 apuinfo_list_finish (void)
2630 apuinfo_list *entry;
2632 for (entry = head; entry;)
2634 apuinfo_list *next = entry->next;
2642 #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2643 #define APUINFO_LABEL "APUinfo"
2645 /* Scan the input BFDs and create a linked list of
2646 the APUinfo values that will need to be emitted. */
2649 ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2653 char *buffer = NULL;
2654 bfd_size_type largest_input_size = 0;
2656 unsigned long length;
2657 const char *error_message = NULL;
2659 if (link_info == NULL)
2662 apuinfo_list_init ();
2664 /* Read in the input sections contents. */
2665 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
2667 unsigned long datum;
2669 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2673 error_message = _("corrupt %s section in %B");
2674 length = asec->size;
2679 if (largest_input_size < asec->size)
2683 largest_input_size = asec->size;
2684 buffer = bfd_malloc (largest_input_size);
2689 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
2690 || (bfd_bread (buffer, length, ibfd) != length))
2692 error_message = _("unable to read in %s section from %B");
2696 /* Verify the contents of the header. Note - we have to
2697 extract the values this way in order to allow for a
2698 host whose endian-ness is different from the target. */
2699 datum = bfd_get_32 (ibfd, buffer);
2700 if (datum != sizeof APUINFO_LABEL)
2703 datum = bfd_get_32 (ibfd, buffer + 8);
2707 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
2710 /* Get the number of bytes used for apuinfo entries. */
2711 datum = bfd_get_32 (ibfd, buffer + 4);
2712 if (datum + 20 != length)
2715 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2716 for (i = 0; i < datum; i += 4)
2717 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
2720 error_message = NULL;
2724 /* Compute the size of the output section. */
2725 unsigned num_entries = apuinfo_list_length ();
2727 /* Set the output section size, if it exists. */
2728 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2730 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2733 error_message = _("warning: unable to set size of %s section in %B");
2742 (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
2745 /* Prevent the output section from accumulating the input sections'
2746 contents. We have already stored this in our linked list structure. */
2749 ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
2750 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2752 bfd_byte *contents ATTRIBUTE_UNUSED)
2754 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
2757 /* Finally we can generate the output section. */
2760 ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
2765 unsigned num_entries;
2766 bfd_size_type length;
2768 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2775 length = asec->size;
2779 buffer = bfd_malloc (length);
2782 (*_bfd_error_handler)
2783 (_("failed to allocate space for new APUinfo section."));
2787 /* Create the apuinfo header. */
2788 num_entries = apuinfo_list_length ();
2789 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2790 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2791 bfd_put_32 (abfd, 0x2, buffer + 8);
2792 strcpy ((char *) buffer + 12, APUINFO_LABEL);
2795 for (i = 0; i < num_entries; i++)
2797 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2801 if (length != asec->size)
2802 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
2804 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2805 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
2809 apuinfo_list_finish ();
2813 is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
2815 bfd_byte buf[GLINK_ENTRY_SIZE];
2817 if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
2820 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2821 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2822 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2823 && bfd_get_32 (abfd, buf + 12) == BCTR);
2827 section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2829 bfd_vma vma = *(bfd_vma *) ptr;
2830 return ((section->flags & SEC_ALLOC) != 0
2831 && section->vma <= vma
2832 && vma < section->vma + section->size);
2836 ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2837 long dynsymcount, asymbol **dynsyms,
2840 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2841 asection *plt, *relplt, *dynamic, *glink;
2842 bfd_vma glink_vma = 0;
2843 bfd_vma resolv_vma = 0;
2854 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2857 if (dynsymcount <= 0)
2860 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2864 plt = bfd_get_section_by_name (abfd, ".plt");
2868 /* Call common code to handle old-style executable PLTs. */
2869 if (elf_section_flags (plt) & SHF_EXECINSTR)
2870 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2871 dynsymcount, dynsyms, ret);
2873 /* If this object was prelinked, the prelinker stored the address
2874 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2875 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2876 if (dynamic != NULL)
2878 bfd_byte *dynbuf, *extdyn, *extdynend;
2880 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2882 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2885 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2886 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2889 extdynend = extdyn + dynamic->size;
2890 for (; extdyn < extdynend; extdyn += extdynsize)
2892 Elf_Internal_Dyn dyn;
2893 (*swap_dyn_in) (abfd, extdyn, &dyn);
2895 if (dyn.d_tag == DT_NULL)
2898 if (dyn.d_tag == DT_PPC_GOT)
2900 unsigned int g_o_t = dyn.d_un.d_val;
2901 asection *got = bfd_get_section_by_name (abfd, ".got");
2903 && bfd_get_section_contents (abfd, got, buf,
2904 g_o_t - got->vma + 4, 4))
2905 glink_vma = bfd_get_32 (abfd, buf);
2912 /* Otherwise we read the first plt entry. */
2915 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
2916 glink_vma = bfd_get_32 (abfd, buf);
2922 /* The .glink section usually does not survive the final
2923 link; search for the section (usually .text) where the
2924 glink stubs now reside. */
2925 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
2929 /* Determine glink PLT resolver by reading the relative branch
2930 from the first glink stub. */
2931 if (bfd_get_section_contents (abfd, glink, buf,
2932 glink_vma - glink->vma, 4))
2934 unsigned int insn = bfd_get_32 (abfd, buf);
2936 /* The first glink stub may either branch to the resolver ... */
2938 if ((insn & ~0x3fffffc) == 0)
2939 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
2941 /* ... or fall through a bunch of NOPs. */
2942 else if ((insn ^ B ^ NOP) == 0)
2944 bfd_get_section_contents (abfd, glink, buf,
2945 glink_vma - glink->vma + i, 4);
2947 if (bfd_get_32 (abfd, buf) != NOP)
2949 resolv_vma = glink_vma + i;
2954 count = relplt->size / sizeof (Elf32_External_Rela);
2955 /* If the stubs are those for -shared/-pie then we might have
2956 multiple stubs for each plt entry. If that is the case then
2957 there is no way to associate stubs with their plt entries short
2958 of figuring out the GOT pointer value used in the stub. */
2959 if (!is_nonpic_glink_stub (abfd, glink,
2960 glink_vma - GLINK_ENTRY_SIZE - glink->vma))
2963 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2964 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
2967 size = count * sizeof (asymbol);
2968 p = relplt->relocation;
2969 for (i = 0; i < count; i++, p++)
2971 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
2973 size += sizeof ("+0x") - 1 + 8;
2976 size += sizeof (asymbol) + sizeof ("__glink");
2979 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
2981 s = *ret = bfd_malloc (size);
2985 stub_vma = glink_vma;
2986 names = (char *) (s + count + 1 + (resolv_vma != 0));
2987 p = relplt->relocation + count - 1;
2988 for (i = 0; i < count; i++)
2992 *s = **p->sym_ptr_ptr;
2993 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
2994 we are defining a symbol, ensure one of them is set. */
2995 if ((s->flags & BSF_LOCAL) == 0)
2996 s->flags |= BSF_GLOBAL;
2997 s->flags |= BSF_SYNTHETIC;
3000 if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
3002 s->value = stub_vma - glink->vma;
3005 len = strlen ((*p->sym_ptr_ptr)->name);
3006 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3010 memcpy (names, "+0x", sizeof ("+0x") - 1);
3011 names += sizeof ("+0x") - 1;
3012 bfd_sprintf_vma (abfd, names, p->addend);
3013 names += strlen (names);
3015 memcpy (names, "@plt", sizeof ("@plt"));
3016 names += sizeof ("@plt");
3021 /* Add a symbol at the start of the glink branch table. */
3022 memset (s, 0, sizeof *s);
3024 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
3026 s->value = glink_vma - glink->vma;
3028 memcpy (names, "__glink", sizeof ("__glink"));
3029 names += sizeof ("__glink");
3035 /* Add a symbol for the glink PLT resolver. */
3036 memset (s, 0, sizeof *s);
3038 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
3040 s->value = resolv_vma - glink->vma;
3042 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3043 names += sizeof ("__glink_PLTresolve");
3051 /* The following functions are specific to the ELF linker, while
3052 functions above are used generally. They appear in this file more
3053 or less in the order in which they are called. eg.
3054 ppc_elf_check_relocs is called early in the link process,
3055 ppc_elf_finish_dynamic_sections is one of the last functions
3058 /* Track PLT entries needed for a given symbol. We might need more
3059 than one glink entry per symbol when generating a pic binary. */
3062 struct plt_entry *next;
3064 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3065 This field stores the offset into .got2 used to initialise the
3066 GOT pointer reg. It will always be at least 32768. (Current
3067 gcc always uses an offset of 32768, but ld -r will pack .got2
3068 sections together resulting in larger offsets). */
3071 /* The .got2 section. */
3074 /* PLT refcount or offset. */
3077 bfd_signed_vma refcount;
3081 /* .glink stub offset. */
3082 bfd_vma glink_offset;
3085 /* Of those relocs that might be copied as dynamic relocs, this function
3086 selects those that must be copied when linking a shared library,
3087 even when the symbol is local. */
3090 must_be_dyn_reloc (struct bfd_link_info *info,
3091 enum elf_ppc_reloc_type r_type)
3100 case R_PPC_REL14_BRTAKEN:
3101 case R_PPC_REL14_BRNTAKEN:
3107 case R_PPC_TPREL16_LO:
3108 case R_PPC_TPREL16_HI:
3109 case R_PPC_TPREL16_HA:
3110 return !bfd_link_executable (info);
3114 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3115 copying dynamic variables from a shared lib into an app's dynbss
3116 section, and instead use a dynamic relocation to point into the
3118 #define ELIMINATE_COPY_RELOCS 1
3120 /* Used to track dynamic relocations for local symbols. */
3121 struct ppc_dyn_relocs
3123 struct ppc_dyn_relocs *next;
3125 /* The input section of the reloc. */
3128 /* Total number of relocs copied for the input section. */
3129 unsigned int count : 31;
3131 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3132 unsigned int ifunc : 1;
3135 /* PPC ELF linker hash entry. */
3137 struct ppc_elf_link_hash_entry
3139 struct elf_link_hash_entry elf;
3141 /* If this symbol is used in the linker created sections, the processor
3142 specific backend uses this field to map the field into the offset
3143 from the beginning of the section. */
3144 elf_linker_section_pointers_t *linker_section_pointer;
3146 /* Track dynamic relocs copied for this symbol. */
3147 struct elf_dyn_relocs *dyn_relocs;
3149 /* Contexts in which symbol is used in the GOT (or TOC).
3150 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3151 corresponding relocs are encountered during check_relocs.
3152 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3153 indicate the corresponding GOT entry type is not needed. */
3154 #define TLS_GD 1 /* GD reloc. */
3155 #define TLS_LD 2 /* LD reloc. */
3156 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
3157 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3158 #define TLS_TLS 16 /* Any TLS reloc. */
3159 #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
3160 #define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
3163 /* Nonzero if we have seen a small data relocation referring to this
3165 unsigned char has_sda_refs : 1;
3167 /* Flag use of given relocations. */
3168 unsigned char has_addr16_ha : 1;
3169 unsigned char has_addr16_lo : 1;
3172 #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3174 /* PPC ELF linker hash table. */
3176 struct ppc_elf_link_hash_table
3178 struct elf_link_hash_table elf;
3180 /* Various options passed from the linker. */
3181 struct ppc_elf_params *params;
3183 /* Short-cuts to get to dynamic linker sections. */
3195 elf_linker_section_t sdata[2];
3197 asection *glink_eh_frame;
3199 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3202 /* The .got.plt section (VxWorks only)*/
3205 /* Shortcut to __tls_get_addr. */
3206 struct elf_link_hash_entry *tls_get_addr;
3208 /* The bfd that forced an old-style PLT. */
3211 /* TLS local dynamic got entry handling. */
3213 bfd_signed_vma refcount;
3217 /* Offset of branch table to PltResolve function in glink. */
3218 bfd_vma glink_pltresolve;
3220 /* Size of reserved GOT entries. */
3221 unsigned int got_header_size;
3222 /* Non-zero if allocating the header left a gap. */
3223 unsigned int got_gap;
3225 /* The type of PLT we have chosen to use. */
3226 enum ppc_elf_plt_type plt_type;
3228 /* True if the target system is VxWorks. */
3229 unsigned int is_vxworks:1;
3231 /* The size of PLT entries. */
3233 /* The distance between adjacent PLT slots. */
3235 /* The size of the first PLT entry. */
3236 int plt_initial_entry_size;
3238 /* Small local sym cache. */
3239 struct sym_cache sym_cache;
3242 /* Rename some of the generic section flags to better document how they
3243 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3245 /* Nonzero if this section has TLS related relocations. */
3246 #define has_tls_reloc sec_flg0
3248 /* Nonzero if this section has a call to __tls_get_addr. */
3249 #define has_tls_get_addr_call sec_flg1
3251 /* Get the PPC ELF linker hash table from a link_info structure. */
3253 #define ppc_elf_hash_table(p) \
3254 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3255 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
3257 /* Create an entry in a PPC ELF linker hash table. */
3259 static struct bfd_hash_entry *
3260 ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3261 struct bfd_hash_table *table,
3264 /* Allocate the structure if it has not already been allocated by a
3268 entry = bfd_hash_allocate (table,
3269 sizeof (struct ppc_elf_link_hash_entry));
3274 /* Call the allocation method of the superclass. */
3275 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3278 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3279 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3280 ppc_elf_hash_entry (entry)->tls_mask = 0;
3281 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
3287 /* Create a PPC ELF linker hash table. */
3289 static struct bfd_link_hash_table *
3290 ppc_elf_link_hash_table_create (bfd *abfd)
3292 struct ppc_elf_link_hash_table *ret;
3293 static struct ppc_elf_params default_params = { PLT_OLD, 0, 1, 0, 0, 12, 0 };
3295 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3299 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3300 ppc_elf_link_hash_newfunc,
3301 sizeof (struct ppc_elf_link_hash_entry),
3308 ret->elf.init_plt_refcount.refcount = 0;
3309 ret->elf.init_plt_refcount.glist = NULL;
3310 ret->elf.init_plt_offset.offset = 0;
3311 ret->elf.init_plt_offset.glist = NULL;
3313 ret->params = &default_params;
3315 ret->sdata[0].name = ".sdata";
3316 ret->sdata[0].sym_name = "_SDA_BASE_";
3317 ret->sdata[0].bss_name = ".sbss";
3319 ret->sdata[1].name = ".sdata2";
3320 ret->sdata[1].sym_name = "_SDA2_BASE_";
3321 ret->sdata[1].bss_name = ".sbss2";
3323 ret->plt_entry_size = 12;
3324 ret->plt_slot_size = 8;
3325 ret->plt_initial_entry_size = 72;
3327 return &ret->elf.root;
3330 /* Hook linker params into hash table. */
3333 ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
3335 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3338 htab->params = params;
3341 /* Create .got and the related sections. */
3344 ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3346 struct ppc_elf_link_hash_table *htab;
3350 if (!_bfd_elf_create_got_section (abfd, info))
3353 htab = ppc_elf_hash_table (info);
3354 htab->got = s = bfd_get_linker_section (abfd, ".got");
3358 if (htab->is_vxworks)
3360 htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt");
3366 /* The powerpc .got has a blrl instruction in it. Mark it
3368 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3369 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3370 if (!bfd_set_section_flags (abfd, s, flags))
3374 htab->relgot = bfd_get_linker_section (abfd, ".rela.got");
3381 /* Create a special linker section, used for R_PPC_EMB_SDAI16 and
3382 R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata
3383 and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */
3386 ppc_elf_create_linker_section (bfd *abfd,
3387 struct bfd_link_info *info,
3389 elf_linker_section_t *lsect)
3393 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3394 | SEC_LINKER_CREATED);
3396 s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
3401 /* Define the sym on the first section of this name. */
3402 s = bfd_get_section_by_name (abfd, lsect->name);
3404 lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
3405 if (lsect->sym == NULL)
3407 lsect->sym->root.u.def.value = 0x8000;
3412 ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3414 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3418 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3419 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3420 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3423 || !bfd_set_section_alignment (abfd, s,
3424 htab->params->ppc476_workaround ? 6 : 4))
3427 if (!info->no_ld_generated_unwind_info)
3429 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3430 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3431 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3432 htab->glink_eh_frame = s;
3434 || !bfd_set_section_alignment (abfd, s, 2))
3438 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3439 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
3442 || !bfd_set_section_alignment (abfd, s, 4))
3445 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3446 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3447 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
3450 || ! bfd_set_section_alignment (abfd, s, 2))
3453 if (!ppc_elf_create_linker_section (abfd, info, 0,
3457 if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3464 /* We have to create .dynsbss and .rela.sbss here so that they get mapped
3465 to output sections (just like _bfd_elf_create_dynamic_sections has
3466 to create .dynbss and .rela.bss). */
3469 ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3471 struct ppc_elf_link_hash_table *htab;
3475 htab = ppc_elf_hash_table (info);
3477 if (htab->got == NULL
3478 && !ppc_elf_create_got (abfd, info))
3481 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3484 if (htab->glink == NULL
3485 && !ppc_elf_create_glink (abfd, info))
3488 htab->dynbss = bfd_get_linker_section (abfd, ".dynbss");
3489 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3490 SEC_ALLOC | SEC_LINKER_CREATED);
3495 if (! bfd_link_pic (info))
3497 htab->relbss = bfd_get_linker_section (abfd, ".rela.bss");
3498 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3499 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3500 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3503 || ! bfd_set_section_alignment (abfd, s, 2))
3507 if (htab->is_vxworks
3508 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3511 htab->relplt = bfd_get_linker_section (abfd, ".rela.plt");
3512 htab->plt = s = bfd_get_linker_section (abfd, ".plt");
3516 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
3517 if (htab->plt_type == PLT_VXWORKS)
3518 /* The VxWorks PLT is a loaded section with contents. */
3519 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
3520 return bfd_set_section_flags (abfd, s, flags);
3523 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3526 ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
3527 struct elf_link_hash_entry *dir,
3528 struct elf_link_hash_entry *ind)
3530 struct ppc_elf_link_hash_entry *edir, *eind;
3532 edir = (struct ppc_elf_link_hash_entry *) dir;
3533 eind = (struct ppc_elf_link_hash_entry *) ind;
3535 edir->tls_mask |= eind->tls_mask;
3536 edir->has_sda_refs |= eind->has_sda_refs;
3538 /* If called to transfer flags for a weakdef during processing
3539 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3540 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3541 if (!(ELIMINATE_COPY_RELOCS
3542 && eind->elf.root.type != bfd_link_hash_indirect
3543 && edir->elf.dynamic_adjusted))
3544 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3546 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
3547 edir->elf.ref_regular |= eind->elf.ref_regular;
3548 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3549 edir->elf.needs_plt |= eind->elf.needs_plt;
3550 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3552 if (eind->dyn_relocs != NULL)
3554 if (edir->dyn_relocs != NULL)
3556 struct elf_dyn_relocs **pp;
3557 struct elf_dyn_relocs *p;
3559 /* Add reloc counts against the indirect sym to the direct sym
3560 list. Merge any entries against the same section. */
3561 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3563 struct elf_dyn_relocs *q;
3565 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3566 if (q->sec == p->sec)
3568 q->pc_count += p->pc_count;
3569 q->count += p->count;
3576 *pp = edir->dyn_relocs;
3579 edir->dyn_relocs = eind->dyn_relocs;
3580 eind->dyn_relocs = NULL;
3583 /* If we were called to copy over info for a weak sym, that's all.
3584 You might think dyn_relocs need not be copied over; After all,
3585 both syms will be dynamic or both non-dynamic so we're just
3586 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
3587 code in ppc_elf_adjust_dynamic_symbol needs to check for
3588 dyn_relocs in read-only sections, and it does so on what is the
3590 if (eind->elf.root.type != bfd_link_hash_indirect)
3593 /* Copy over the GOT refcount entries that we may have already seen to
3594 the symbol which just became indirect. */
3595 edir->elf.got.refcount += eind->elf.got.refcount;
3596 eind->elf.got.refcount = 0;
3598 /* And plt entries. */
3599 if (eind->elf.plt.plist != NULL)
3601 if (edir->elf.plt.plist != NULL)
3603 struct plt_entry **entp;
3604 struct plt_entry *ent;
3606 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3608 struct plt_entry *dent;
3610 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3611 if (dent->sec == ent->sec && dent->addend == ent->addend)
3613 dent->plt.refcount += ent->plt.refcount;
3620 *entp = edir->elf.plt.plist;
3623 edir->elf.plt.plist = eind->elf.plt.plist;
3624 eind->elf.plt.plist = NULL;
3627 if (eind->elf.dynindx != -1)
3629 if (edir->elf.dynindx != -1)
3630 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3631 edir->elf.dynstr_index);
3632 edir->elf.dynindx = eind->elf.dynindx;
3633 edir->elf.dynstr_index = eind->elf.dynstr_index;
3634 eind->elf.dynindx = -1;
3635 eind->elf.dynstr_index = 0;
3639 /* Hook called by the linker routine which adds symbols from an object
3640 file. We use it to put .comm items in .sbss, and not .bss. */
3643 ppc_elf_add_symbol_hook (bfd *abfd,
3644 struct bfd_link_info *info,
3645 Elf_Internal_Sym *sym,
3646 const char **namep ATTRIBUTE_UNUSED,
3647 flagword *flagsp ATTRIBUTE_UNUSED,
3651 if (sym->st_shndx == SHN_COMMON
3652 && !bfd_link_relocatable (info)
3653 && is_ppc_elf (info->output_bfd)
3654 && sym->st_size <= elf_gp_size (abfd))
3656 /* Common symbols less than or equal to -G nn bytes are automatically
3658 struct ppc_elf_link_hash_table *htab;
3660 htab = ppc_elf_hash_table (info);
3661 if (htab->sbss == NULL)
3663 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3665 if (!htab->elf.dynobj)
3666 htab->elf.dynobj = abfd;
3668 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3671 if (htab->sbss == NULL)
3676 *valp = sym->st_size;
3679 if ((ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
3680 || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE)
3681 && (abfd->flags & DYNAMIC) == 0
3682 && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
3683 elf_tdata (info->output_bfd)->has_gnu_symbols = elf_gnu_symbol_any;
3688 /* Find a linker generated pointer with a given addend and type. */
3690 static elf_linker_section_pointers_t *
3691 elf_find_pointer_linker_section
3692 (elf_linker_section_pointers_t *linker_pointers,
3694 elf_linker_section_t *lsect)
3696 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3697 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3698 return linker_pointers;
3703 /* Allocate a pointer to live in a linker created section. */
3706 elf_allocate_pointer_linker_section (bfd *abfd,
3707 elf_linker_section_t *lsect,
3708 struct elf_link_hash_entry *h,
3709 const Elf_Internal_Rela *rel)
3711 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3712 elf_linker_section_pointers_t *linker_section_ptr;
3713 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3716 BFD_ASSERT (lsect != NULL);
3718 /* Is this a global symbol? */
3721 struct ppc_elf_link_hash_entry *eh;
3723 /* Has this symbol already been allocated? If so, our work is done. */
3724 eh = (struct ppc_elf_link_hash_entry *) h;
3725 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3730 ptr_linker_section_ptr = &eh->linker_section_pointer;
3734 BFD_ASSERT (is_ppc_elf (abfd));
3736 /* Allocation of a pointer to a local symbol. */
3737 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3739 /* Allocate a table to hold the local symbols if first time. */
3742 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
3745 amt *= sizeof (elf_linker_section_pointers_t *);
3746 ptr = bfd_zalloc (abfd, amt);
3751 elf_local_ptr_offsets (abfd) = ptr;
3754 /* Has this symbol already been allocated? If so, our work is done. */
3755 if (elf_find_pointer_linker_section (ptr[r_symndx],
3760 ptr_linker_section_ptr = &ptr[r_symndx];
3763 /* Allocate space for a pointer in the linker section, and allocate
3764 a new pointer record from internal memory. */
3765 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3766 amt = sizeof (elf_linker_section_pointers_t);
3767 linker_section_ptr = bfd_alloc (abfd, amt);
3769 if (!linker_section_ptr)
3772 linker_section_ptr->next = *ptr_linker_section_ptr;
3773 linker_section_ptr->addend = rel->r_addend;
3774 linker_section_ptr->lsect = lsect;
3775 *ptr_linker_section_ptr = linker_section_ptr;
3777 if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
3779 linker_section_ptr->offset = lsect->section->size;
3780 lsect->section->size += 4;
3784 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3785 lsect->name, (long) linker_section_ptr->offset,
3786 (long) lsect->section->size);
3792 static struct plt_entry **
3793 update_local_sym_info (bfd *abfd,
3794 Elf_Internal_Shdr *symtab_hdr,
3795 unsigned long r_symndx,
3798 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
3799 struct plt_entry **local_plt;
3800 char *local_got_tls_masks;
3802 if (local_got_refcounts == NULL)
3804 bfd_size_type size = symtab_hdr->sh_info;
3806 size *= (sizeof (*local_got_refcounts)
3807 + sizeof (*local_plt)
3808 + sizeof (*local_got_tls_masks));
3809 local_got_refcounts = bfd_zalloc (abfd, size);
3810 if (local_got_refcounts == NULL)
3812 elf_local_got_refcounts (abfd) = local_got_refcounts;
3815 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3816 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
3817 local_got_tls_masks[r_symndx] |= tls_type;
3818 if (tls_type != PLT_IFUNC)
3819 local_got_refcounts[r_symndx] += 1;
3820 return local_plt + r_symndx;
3824 update_plt_info (bfd *abfd, struct plt_entry **plist,
3825 asection *sec, bfd_vma addend)
3827 struct plt_entry *ent;
3831 for (ent = *plist; ent != NULL; ent = ent->next)
3832 if (ent->sec == sec && ent->addend == addend)
3836 bfd_size_type amt = sizeof (*ent);
3837 ent = bfd_alloc (abfd, amt);
3842 ent->addend = addend;
3843 ent->plt.refcount = 0;
3846 ent->plt.refcount += 1;
3850 static struct plt_entry *
3851 find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
3853 struct plt_entry *ent;
3857 for (ent = *plist; ent != NULL; ent = ent->next)
3858 if (ent->sec == sec && ent->addend == addend)
3864 is_branch_reloc (enum elf_ppc_reloc_type r_type)
3866 return (r_type == R_PPC_PLTREL24
3867 || r_type == R_PPC_LOCAL24PC
3868 || r_type == R_PPC_REL24
3869 || r_type == R_PPC_REL14
3870 || r_type == R_PPC_REL14_BRTAKEN
3871 || r_type == R_PPC_REL14_BRNTAKEN
3872 || r_type == R_PPC_ADDR24
3873 || r_type == R_PPC_ADDR14
3874 || r_type == R_PPC_ADDR14_BRTAKEN
3875 || r_type == R_PPC_ADDR14_BRNTAKEN);
3879 bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3881 (*_bfd_error_handler)
3882 (_("%B: relocation %s cannot be used when making a shared object"),
3884 ppc_elf_howto_table[r_type]->name);
3885 bfd_set_error (bfd_error_bad_value);
3888 /* Look through the relocs for a section during the first phase, and
3889 allocate space in the global offset table or procedure linkage
3893 ppc_elf_check_relocs (bfd *abfd,
3894 struct bfd_link_info *info,
3896 const Elf_Internal_Rela *relocs)
3898 struct ppc_elf_link_hash_table *htab;
3899 Elf_Internal_Shdr *symtab_hdr;
3900 struct elf_link_hash_entry **sym_hashes;
3901 const Elf_Internal_Rela *rel;
3902 const Elf_Internal_Rela *rel_end;
3903 asection *got2, *sreloc;
3904 struct elf_link_hash_entry *tga;
3906 if (bfd_link_relocatable (info))
3909 /* Don't do anything special with non-loaded, non-alloced sections.
3910 In particular, any relocs in such sections should not affect GOT
3911 and PLT reference counting (ie. we don't allow them to create GOT
3912 or PLT entries), there's no possibility or desire to optimize TLS
3913 relocs, and there's not much point in propagating relocs to shared
3914 libs that the dynamic linker won't relocate. */
3915 if ((sec->flags & SEC_ALLOC) == 0)
3919 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3923 BFD_ASSERT (is_ppc_elf (abfd));
3925 /* Initialize howto table if not already done. */
3926 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3927 ppc_elf_howto_init ();
3929 htab = ppc_elf_hash_table (info);
3930 if (htab->glink == NULL)
3932 if (htab->elf.dynobj == NULL)
3933 htab->elf.dynobj = abfd;
3934 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
3937 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
3938 FALSE, FALSE, TRUE);
3939 symtab_hdr = &elf_symtab_hdr (abfd);
3940 sym_hashes = elf_sym_hashes (abfd);
3941 got2 = bfd_get_section_by_name (abfd, ".got2");
3944 rel_end = relocs + sec->reloc_count;
3945 for (rel = relocs; rel < rel_end; rel++)
3947 unsigned long r_symndx;
3948 enum elf_ppc_reloc_type r_type;
3949 struct elf_link_hash_entry *h;
3951 struct plt_entry **ifunc;
3953 r_symndx = ELF32_R_SYM (rel->r_info);
3954 if (r_symndx < symtab_hdr->sh_info)
3958 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3959 while (h->root.type == bfd_link_hash_indirect
3960 || h->root.type == bfd_link_hash_warning)
3961 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3963 /* PR15323, ref flags aren't set for references in the same
3965 h->root.non_ir_ref = 1;
3968 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3969 This shows up in particular in an R_PPC_ADDR32 in the eabi
3972 && htab->got == NULL
3973 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3975 if (htab->elf.dynobj == NULL)
3976 htab->elf.dynobj = abfd;
3977 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3979 BFD_ASSERT (h == htab->elf.hgot);
3983 r_type = ELF32_R_TYPE (rel->r_info);
3985 if (h == NULL && !htab->is_vxworks)
3987 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3992 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
3994 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
3995 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
4000 /* STT_GNU_IFUNC symbols must have a PLT entry;
4001 In a non-pie executable even when there are
4003 if (!bfd_link_pic (info)
4004 || is_branch_reloc (r_type))
4007 if (r_type == R_PPC_PLTREL24)
4009 ppc_elf_tdata (abfd)->makes_plt_call = 1;
4010 if (bfd_link_pic (info))
4011 addend = rel->r_addend;
4013 if (!update_plt_info (abfd, ifunc, got2, addend))
4019 if (!htab->is_vxworks
4020 && is_branch_reloc (r_type)
4025 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
4026 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
4027 /* We have a new-style __tls_get_addr call with a marker
4031 /* Mark this section as having an old-style call. */
4032 sec->has_tls_get_addr_call = 1;
4039 /* These special tls relocs tie a call to __tls_get_addr with
4040 its parameter symbol. */
4043 case R_PPC_GOT_TLSLD16:
4044 case R_PPC_GOT_TLSLD16_LO:
4045 case R_PPC_GOT_TLSLD16_HI:
4046 case R_PPC_GOT_TLSLD16_HA:
4047 tls_type = TLS_TLS | TLS_LD;
4050 case R_PPC_GOT_TLSGD16:
4051 case R_PPC_GOT_TLSGD16_LO:
4052 case R_PPC_GOT_TLSGD16_HI:
4053 case R_PPC_GOT_TLSGD16_HA:
4054 tls_type = TLS_TLS | TLS_GD;
4057 case R_PPC_GOT_TPREL16:
4058 case R_PPC_GOT_TPREL16_LO:
4059 case R_PPC_GOT_TPREL16_HI:
4060 case R_PPC_GOT_TPREL16_HA:
4061 if (bfd_link_pic (info))
4062 info->flags |= DF_STATIC_TLS;
4063 tls_type = TLS_TLS | TLS_TPREL;
4066 case R_PPC_GOT_DTPREL16:
4067 case R_PPC_GOT_DTPREL16_LO:
4068 case R_PPC_GOT_DTPREL16_HI:
4069 case R_PPC_GOT_DTPREL16_HA:
4070 tls_type = TLS_TLS | TLS_DTPREL;
4072 sec->has_tls_reloc = 1;
4075 /* GOT16 relocations */
4077 case R_PPC_GOT16_LO:
4078 case R_PPC_GOT16_HI:
4079 case R_PPC_GOT16_HA:
4080 /* This symbol requires a global offset table entry. */
4081 if (htab->got == NULL)
4083 if (htab->elf.dynobj == NULL)
4084 htab->elf.dynobj = abfd;
4085 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4090 h->got.refcount += 1;
4091 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4094 /* This is a global offset table entry for a local symbol. */
4095 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4098 /* We may also need a plt entry if the symbol turns out to be
4100 if (h != NULL && !bfd_link_pic (info))
4102 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4107 /* Indirect .sdata relocation. */
4108 case R_PPC_EMB_SDAI16:
4109 if (bfd_link_pic (info))
4111 bad_shared_reloc (abfd, r_type);
4114 htab->sdata[0].sym->ref_regular = 1;
4115 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
4120 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4121 h->non_got_ref = TRUE;
4125 /* Indirect .sdata2 relocation. */
4126 case R_PPC_EMB_SDA2I16:
4127 if (bfd_link_pic (info))
4129 bad_shared_reloc (abfd, r_type);
4132 htab->sdata[1].sym->ref_regular = 1;
4133 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
4138 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4139 h->non_got_ref = TRUE;
4143 case R_PPC_SDAREL16:
4144 htab->sdata[0].sym->ref_regular = 1;
4147 case R_PPC_VLE_SDAREL_LO16A:
4148 case R_PPC_VLE_SDAREL_LO16D:
4149 case R_PPC_VLE_SDAREL_HI16A:
4150 case R_PPC_VLE_SDAREL_HI16D:
4151 case R_PPC_VLE_SDAREL_HA16A:
4152 case R_PPC_VLE_SDAREL_HA16D:
4155 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4156 h->non_got_ref = TRUE;
4160 case R_PPC_VLE_REL8:
4161 case R_PPC_VLE_REL15:
4162 case R_PPC_VLE_REL24:
4163 case R_PPC_VLE_LO16A:
4164 case R_PPC_VLE_LO16D:
4165 case R_PPC_VLE_HI16A:
4166 case R_PPC_VLE_HI16D:
4167 case R_PPC_VLE_HA16A:
4168 case R_PPC_VLE_HA16D:
4171 case R_PPC_EMB_SDA2REL:
4172 if (bfd_link_pic (info))
4174 bad_shared_reloc (abfd, r_type);
4177 htab->sdata[1].sym->ref_regular = 1;
4180 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4181 h->non_got_ref = TRUE;
4185 case R_PPC_VLE_SDA21_LO:
4186 case R_PPC_VLE_SDA21:
4187 case R_PPC_EMB_SDA21:
4188 case R_PPC_EMB_RELSDA:
4189 if (bfd_link_pic (info))
4191 bad_shared_reloc (abfd, r_type);
4196 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4197 h->non_got_ref = TRUE;
4201 case R_PPC_EMB_NADDR32:
4202 case R_PPC_EMB_NADDR16:
4203 case R_PPC_EMB_NADDR16_LO:
4204 case R_PPC_EMB_NADDR16_HI:
4205 case R_PPC_EMB_NADDR16_HA:
4206 if (bfd_link_pic (info))
4208 bad_shared_reloc (abfd, r_type);
4212 h->non_got_ref = TRUE;
4215 case R_PPC_PLTREL24:
4220 case R_PPC_PLTREL32:
4221 case R_PPC_PLT16_LO:
4222 case R_PPC_PLT16_HI:
4223 case R_PPC_PLT16_HA:
4225 fprintf (stderr, "Reloc requires a PLT entry\n");
4227 /* This symbol requires a procedure linkage table entry. */
4232 /* It does not make sense to have a procedure linkage
4233 table entry for a non-ifunc local symbol. */
4234 info->callbacks->einfo
4235 (_("%P: %H: %s reloc against local symbol\n"),
4236 abfd, sec, rel->r_offset,
4237 ppc_elf_howto_table[r_type]->name);
4238 bfd_set_error (bfd_error_bad_value);
4246 if (r_type == R_PPC_PLTREL24)
4248 ppc_elf_tdata (abfd)->makes_plt_call = 1;
4249 if (bfd_link_pic (info))
4250 addend = rel->r_addend;
4253 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
4258 /* The following relocations don't need to propagate the
4259 relocation if linking a shared object since they are
4260 section relative. */
4262 case R_PPC_SECTOFF_LO:
4263 case R_PPC_SECTOFF_HI:
4264 case R_PPC_SECTOFF_HA:
4265 case R_PPC_DTPREL16:
4266 case R_PPC_DTPREL16_LO:
4267 case R_PPC_DTPREL16_HI:
4268 case R_PPC_DTPREL16_HA:
4273 case R_PPC_REL16_LO:
4274 case R_PPC_REL16_HI:
4275 case R_PPC_REL16_HA:
4276 case R_PPC_REL16DX_HA:
4277 ppc_elf_tdata (abfd)->has_rel16 = 1;
4280 /* These are just markers. */
4282 case R_PPC_EMB_MRKREF:
4286 case R_PPC_RELAX_PLT:
4287 case R_PPC_RELAX_PLTREL24:
4290 /* These should only appear in dynamic objects. */
4292 case R_PPC_GLOB_DAT:
4293 case R_PPC_JMP_SLOT:
4294 case R_PPC_RELATIVE:
4295 case R_PPC_IRELATIVE:
4298 /* These aren't handled yet. We'll report an error later. */
4300 case R_PPC_EMB_RELSEC16:
4301 case R_PPC_EMB_RELST_LO:
4302 case R_PPC_EMB_RELST_HI:
4303 case R_PPC_EMB_RELST_HA:
4304 case R_PPC_EMB_BIT_FLD:
4307 /* This refers only to functions defined in the shared library. */
4308 case R_PPC_LOCAL24PC:
4309 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
4311 htab->plt_type = PLT_OLD;
4312 htab->old_bfd = abfd;
4314 if (h != NULL && h->type == STT_GNU_IFUNC)
4316 if (bfd_link_pic (info))
4318 info->callbacks->einfo
4319 (_("%P: %H: @local call to ifunc %s\n"),
4320 abfd, sec, rel->r_offset,
4321 h->root.root.string);
4322 bfd_set_error (bfd_error_bad_value);
4326 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4331 /* This relocation describes the C++ object vtable hierarchy.
4332 Reconstruct it for later use during GC. */
4333 case R_PPC_GNU_VTINHERIT:
4334 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4338 /* This relocation describes which C++ vtable entries are actually
4339 used. Record for later use during GC. */
4340 case R_PPC_GNU_VTENTRY:
4341 BFD_ASSERT (h != NULL);
4343 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4347 /* We shouldn't really be seeing these. */
4350 case R_PPC_TPREL16_LO:
4351 case R_PPC_TPREL16_HI:
4352 case R_PPC_TPREL16_HA:
4353 if (bfd_link_pic (info))
4354 info->flags |= DF_STATIC_TLS;
4358 case R_PPC_DTPMOD32:
4359 case R_PPC_DTPREL32:
4365 && (sec->flags & SEC_CODE) != 0
4366 && bfd_link_pic (info)
4367 && htab->plt_type == PLT_UNSET)
4369 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4370 the start of a function, which assembles to a REL32
4371 reference to .got2. If we detect one of these, then
4372 force the old PLT layout because the linker cannot
4373 reliably deduce the GOT pointer value needed for
4376 Elf_Internal_Sym *isym;
4378 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4383 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4386 htab->plt_type = PLT_OLD;
4387 htab->old_bfd = abfd;
4390 if (h == NULL || h == htab->elf.hgot)
4396 case R_PPC_ADDR16_LO:
4397 case R_PPC_ADDR16_HI:
4398 case R_PPC_ADDR16_HA:
4401 if (h != NULL && !bfd_link_pic (info))
4403 /* We may need a plt entry if the symbol turns out to be
4404 a function defined in a dynamic object. */
4405 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4408 /* We may need a copy reloc too. */
4410 h->pointer_equality_needed = 1;
4411 if (r_type == R_PPC_ADDR16_HA)
4412 ppc_elf_hash_entry (h)->has_addr16_ha = 1;
4413 if (r_type == R_PPC_ADDR16_LO)
4414 ppc_elf_hash_entry (h)->has_addr16_lo = 1;
4420 case R_PPC_REL14_BRTAKEN:
4421 case R_PPC_REL14_BRNTAKEN:
4424 if (h == htab->elf.hgot)
4426 if (htab->plt_type == PLT_UNSET)
4428 htab->plt_type = PLT_OLD;
4429 htab->old_bfd = abfd;
4437 case R_PPC_ADDR14_BRTAKEN:
4438 case R_PPC_ADDR14_BRNTAKEN:
4439 if (h != NULL && !bfd_link_pic (info))
4441 /* We may need a plt entry if the symbol turns out to be
4442 a function defined in a dynamic object. */
4444 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4450 /* If we are creating a shared library, and this is a reloc
4451 against a global symbol, or a non PC relative reloc
4452 against a local symbol, then we need to copy the reloc
4453 into the shared library. However, if we are linking with
4454 -Bsymbolic, we do not need to copy a reloc against a
4455 global symbol which is defined in an object we are
4456 including in the link (i.e., DEF_REGULAR is set). At
4457 this point we have not seen all the input files, so it is
4458 possible that DEF_REGULAR is not set now but will be set
4459 later (it is never cleared). In case of a weak definition,
4460 DEF_REGULAR may be cleared later by a strong definition in
4461 a shared library. We account for that possibility below by
4462 storing information in the dyn_relocs field of the hash
4463 table entry. A similar situation occurs when creating
4464 shared libraries and symbol visibility changes render the
4467 If on the other hand, we are creating an executable, we
4468 may need to keep relocations for symbols satisfied by a
4469 dynamic library if we manage to avoid copy relocs for the
4471 if ((bfd_link_pic (info)
4472 && (must_be_dyn_reloc (info, r_type)
4474 && (!SYMBOLIC_BIND (info, h)
4475 || h->root.type == bfd_link_hash_defweak
4476 || !h->def_regular))))
4477 || (ELIMINATE_COPY_RELOCS
4478 && !bfd_link_pic (info)
4480 && (h->root.type == bfd_link_hash_defweak
4481 || !h->def_regular)))
4485 "ppc_elf_check_relocs needs to "
4486 "create relocation for %s\n",
4487 (h && h->root.root.string
4488 ? h->root.root.string : "<unknown>"));
4492 if (htab->elf.dynobj == NULL)
4493 htab->elf.dynobj = abfd;
4495 sreloc = _bfd_elf_make_dynamic_reloc_section
4496 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4502 /* If this is a global symbol, we count the number of
4503 relocations we need for this symbol. */
4506 struct elf_dyn_relocs *p;
4507 struct elf_dyn_relocs **rel_head;
4509 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
4511 if (p == NULL || p->sec != sec)
4513 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4516 p->next = *rel_head;
4523 if (!must_be_dyn_reloc (info, r_type))
4528 /* Track dynamic relocs needed for local syms too.
4529 We really need local syms available to do this
4531 struct ppc_dyn_relocs *p;
4532 struct ppc_dyn_relocs **rel_head;
4533 bfd_boolean is_ifunc;
4536 Elf_Internal_Sym *isym;
4538 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4543 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4547 vpp = &elf_section_data (s)->local_dynrel;
4548 rel_head = (struct ppc_dyn_relocs **) vpp;
4549 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
4551 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
4553 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
4555 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4558 p->next = *rel_head;
4561 p->ifunc = is_ifunc;
4576 /* Merge object attributes from IBFD into OBFD. Raise an error if
4577 there are conflicting attributes. */
4579 ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
4581 obj_attribute *in_attr, *in_attrs;
4582 obj_attribute *out_attr, *out_attrs;
4584 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4586 /* This is the first object. Copy the attributes. */
4587 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4589 /* Use the Tag_null value to indicate the attributes have been
4591 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4596 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4597 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4599 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
4600 non-conflicting ones. */
4601 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4602 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
4603 if (in_attr->i != out_attr->i)
4606 if (out_attr->i == 0)
4607 out_attr->i = in_attr->i;
4608 else if (in_attr->i == 0)
4610 else if (out_attr->i == 1 && in_attr->i == 2)
4612 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
4613 else if (out_attr->i == 1 && in_attr->i == 3)
4615 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4617 else if (out_attr->i == 3 && in_attr->i == 1)
4619 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4621 else if (out_attr->i == 3 && in_attr->i == 2)
4623 (_("Warning: %B uses soft float, %B uses single-precision hard float"),
4625 else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3))
4627 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
4628 else if (in_attr->i > 3)
4630 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
4634 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
4638 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4639 merge non-conflicting ones. */
4640 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4641 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4642 if (in_attr->i != out_attr->i)
4644 const char *in_abi = NULL, *out_abi = NULL;
4648 case 1: in_abi = "generic"; break;
4649 case 2: in_abi = "AltiVec"; break;
4650 case 3: in_abi = "SPE"; break;
4653 switch (out_attr->i)
4655 case 1: out_abi = "generic"; break;
4656 case 2: out_abi = "AltiVec"; break;
4657 case 3: out_abi = "SPE"; break;
4661 if (out_attr->i == 0)
4662 out_attr->i = in_attr->i;
4663 else if (in_attr->i == 0)
4665 /* For now, allow generic to transition to AltiVec or SPE
4666 without a warning. If GCC marked files with their stack
4667 alignment and used don't-care markings for files which are
4668 not affected by the vector ABI, we could warn about this
4670 else if (out_attr->i == 1)
4671 out_attr->i = in_attr->i;
4672 else if (in_attr->i == 1)
4674 else if (in_abi == NULL)
4676 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
4678 else if (out_abi == NULL)
4680 (_("Warning: %B uses unknown vector ABI %d"), obfd,
4684 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
4685 ibfd, obfd, in_abi, out_abi);
4688 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4689 and merge non-conflicting ones. */
4690 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4691 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4692 if (in_attr->i != out_attr->i)
4695 if (out_attr->i == 0)
4696 out_attr->i = in_attr->i;
4697 else if (in_attr->i == 0)
4699 else if (out_attr->i == 1 && in_attr->i == 2)
4701 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd);
4702 else if (out_attr->i == 2 && in_attr->i == 1)
4704 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd);
4705 else if (in_attr->i > 2)
4707 (_("Warning: %B uses unknown small structure return convention %d"), ibfd,
4711 (_("Warning: %B uses unknown small structure return convention %d"), obfd,
4715 /* Merge Tag_compatibility attributes and any common GNU ones. */
4716 _bfd_elf_merge_object_attributes (ibfd, obfd);
4721 /* Merge backend specific data from an object file to the output
4722 object file when linking. */
4725 ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4731 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
4734 /* Check if we have the same endianness. */
4735 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
4738 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
4741 new_flags = elf_elfheader (ibfd)->e_flags;
4742 old_flags = elf_elfheader (obfd)->e_flags;
4743 if (!elf_flags_init (obfd))
4745 /* First call, no flags set. */
4746 elf_flags_init (obfd) = TRUE;
4747 elf_elfheader (obfd)->e_flags = new_flags;
4750 /* Compatible flags are ok. */
4751 else if (new_flags == old_flags)
4754 /* Incompatible flags. */
4757 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4758 to be linked with either. */
4760 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4761 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4764 (*_bfd_error_handler)
4765 (_("%B: compiled with -mrelocatable and linked with "
4766 "modules compiled normally"), ibfd);
4768 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4769 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4772 (*_bfd_error_handler)
4773 (_("%B: compiled normally and linked with "
4774 "modules compiled with -mrelocatable"), ibfd);
4777 /* The output is -mrelocatable-lib iff both the input files are. */
4778 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4779 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4781 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4782 but each input file is either -mrelocatable or -mrelocatable-lib. */
4783 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4784 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4785 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4786 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4788 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4789 any module uses it. */
4790 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4792 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4793 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4795 /* Warn about any other mismatches. */
4796 if (new_flags != old_flags)
4799 (*_bfd_error_handler)
4800 (_("%B: uses different e_flags (0x%lx) fields "
4801 "than previous modules (0x%lx)"),
4802 ibfd, (long) new_flags, (long) old_flags);
4807 bfd_set_error (bfd_error_bad_value);
4816 ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *loc,
4818 split16_format_type split16_format)
4821 unsigned int insn, top5;
4823 insn = bfd_get_32 (output_bfd, loc);
4824 top5 = value & 0xf800;
4825 top5 = top5 << (split16_format == split16a_type ? 9 : 5);
4827 insn |= value & 0x7ff;
4828 bfd_put_32 (output_bfd, insn, loc);
4832 /* Choose which PLT scheme to use, and set .plt flags appropriately.
4833 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4835 ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
4836 struct bfd_link_info *info)
4838 struct ppc_elf_link_hash_table *htab;
4841 htab = ppc_elf_hash_table (info);
4843 if (htab->plt_type == PLT_UNSET)
4845 struct elf_link_hash_entry *h;
4847 if (htab->params->plt_style == PLT_OLD)
4848 htab->plt_type = PLT_OLD;
4849 else if (bfd_link_pic (info)
4850 && htab->elf.dynamic_sections_created
4851 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
4852 FALSE, FALSE, TRUE)) != NULL
4853 && (h->type == STT_FUNC
4856 && !(SYMBOL_CALLS_LOCAL (info, h)
4857 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4858 && h->root.type == bfd_link_hash_undefweak)))
4860 /* Profiling of shared libs (and pies) is not supported with
4861 secure plt, because ppc32 does profiling before a
4862 function prologue and a secure plt pic call stubs needs
4863 r30 to be set up. */
4864 htab->plt_type = PLT_OLD;
4869 enum ppc_elf_plt_type plt_type = htab->params->plt_style;
4871 /* Look through the reloc flags left by ppc_elf_check_relocs.
4872 Use the old style bss plt if a file makes plt calls
4873 without using the new relocs, and if ld isn't given
4874 --secure-plt and we never see REL16 relocs. */
4875 if (plt_type == PLT_UNSET)
4877 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
4878 if (is_ppc_elf (ibfd))
4880 if (ppc_elf_tdata (ibfd)->has_rel16)
4882 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
4885 htab->old_bfd = ibfd;
4889 htab->plt_type = plt_type;
4892 if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
4894 if (htab->old_bfd != NULL)
4895 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
4898 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
4901 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
4903 if (htab->plt_type == PLT_NEW)
4905 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
4906 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4908 /* The new PLT is a loaded section. */
4909 if (htab->plt != NULL
4910 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
4913 /* The new GOT is not executable. */
4914 if (htab->got != NULL
4915 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
4920 /* Stop an unused .glink section from affecting .text alignment. */
4921 if (htab->glink != NULL
4922 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
4925 return htab->plt_type == PLT_NEW;
4928 /* Return the section that should be marked against GC for a given
4932 ppc_elf_gc_mark_hook (asection *sec,
4933 struct bfd_link_info *info,
4934 Elf_Internal_Rela *rel,
4935 struct elf_link_hash_entry *h,
4936 Elf_Internal_Sym *sym)
4939 switch (ELF32_R_TYPE (rel->r_info))
4941 case R_PPC_GNU_VTINHERIT:
4942 case R_PPC_GNU_VTENTRY:
4946 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4949 /* Update the got, plt and dynamic reloc reference counts for the
4950 section being removed. */
4953 ppc_elf_gc_sweep_hook (bfd *abfd,
4954 struct bfd_link_info *info,
4956 const Elf_Internal_Rela *relocs)
4958 struct ppc_elf_link_hash_table *htab;
4959 Elf_Internal_Shdr *symtab_hdr;
4960 struct elf_link_hash_entry **sym_hashes;
4961 bfd_signed_vma *local_got_refcounts;
4962 const Elf_Internal_Rela *rel, *relend;
4965 if (bfd_link_relocatable (info))
4968 if ((sec->flags & SEC_ALLOC) == 0)
4971 elf_section_data (sec)->local_dynrel = NULL;
4973 htab = ppc_elf_hash_table (info);
4974 symtab_hdr = &elf_symtab_hdr (abfd);
4975 sym_hashes = elf_sym_hashes (abfd);
4976 local_got_refcounts = elf_local_got_refcounts (abfd);
4977 got2 = bfd_get_section_by_name (abfd, ".got2");
4979 relend = relocs + sec->reloc_count;
4980 for (rel = relocs; rel < relend; rel++)
4982 unsigned long r_symndx;
4983 enum elf_ppc_reloc_type r_type;
4984 struct elf_link_hash_entry *h = NULL;
4986 r_symndx = ELF32_R_SYM (rel->r_info);
4987 if (r_symndx >= symtab_hdr->sh_info)
4989 struct elf_dyn_relocs **pp, *p;
4990 struct ppc_elf_link_hash_entry *eh;
4992 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4993 while (h->root.type == bfd_link_hash_indirect
4994 || h->root.type == bfd_link_hash_warning)
4995 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4996 eh = (struct ppc_elf_link_hash_entry *) h;
4998 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5001 /* Everything must go for SEC. */
5007 r_type = ELF32_R_TYPE (rel->r_info);
5008 if (!htab->is_vxworks
5010 && local_got_refcounts != NULL
5011 && (!bfd_link_pic (info)
5012 || is_branch_reloc (r_type)))
5014 struct plt_entry **local_plt = (struct plt_entry **)
5015 (local_got_refcounts + symtab_hdr->sh_info);
5016 char *local_got_tls_masks = (char *)
5017 (local_plt + symtab_hdr->sh_info);
5018 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
5020 struct plt_entry **ifunc = local_plt + r_symndx;
5022 struct plt_entry *ent;
5024 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
5025 addend = rel->r_addend;
5026 ent = find_plt_ent (ifunc, got2, addend);
5027 if (ent->plt.refcount > 0)
5028 ent->plt.refcount -= 1;
5035 case R_PPC_GOT_TLSLD16:
5036 case R_PPC_GOT_TLSLD16_LO:
5037 case R_PPC_GOT_TLSLD16_HI:
5038 case R_PPC_GOT_TLSLD16_HA:
5039 case R_PPC_GOT_TLSGD16:
5040 case R_PPC_GOT_TLSGD16_LO:
5041 case R_PPC_GOT_TLSGD16_HI:
5042 case R_PPC_GOT_TLSGD16_HA:
5043 case R_PPC_GOT_TPREL16:
5044 case R_PPC_GOT_TPREL16_LO:
5045 case R_PPC_GOT_TPREL16_HI:
5046 case R_PPC_GOT_TPREL16_HA:
5047 case R_PPC_GOT_DTPREL16:
5048 case R_PPC_GOT_DTPREL16_LO:
5049 case R_PPC_GOT_DTPREL16_HI:
5050 case R_PPC_GOT_DTPREL16_HA:
5052 case R_PPC_GOT16_LO:
5053 case R_PPC_GOT16_HI:
5054 case R_PPC_GOT16_HA:
5057 if (h->got.refcount > 0)
5059 if (!bfd_link_pic (info))
5061 struct plt_entry *ent;
5063 ent = find_plt_ent (&h->plt.plist, NULL, 0);
5064 if (ent != NULL && ent->plt.refcount > 0)
5065 ent->plt.refcount -= 1;
5068 else if (local_got_refcounts != NULL)
5070 if (local_got_refcounts[r_symndx] > 0)
5071 local_got_refcounts[r_symndx]--;
5077 case R_PPC_REL14_BRTAKEN:
5078 case R_PPC_REL14_BRNTAKEN:
5080 if (h == NULL || h == htab->elf.hgot)
5087 case R_PPC_ADDR16_LO:
5088 case R_PPC_ADDR16_HI:
5089 case R_PPC_ADDR16_HA:
5091 case R_PPC_ADDR14_BRTAKEN:
5092 case R_PPC_ADDR14_BRNTAKEN:
5095 if (bfd_link_pic (info))
5099 case R_PPC_PLTREL24:
5100 case R_PPC_PLTREL32:
5101 case R_PPC_PLT16_LO:
5102 case R_PPC_PLT16_HI:
5103 case R_PPC_PLT16_HA:
5107 struct plt_entry *ent;
5109 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
5110 addend = rel->r_addend;
5111 ent = find_plt_ent (&h->plt.plist, got2, addend);
5112 if (ent != NULL && ent->plt.refcount > 0)
5113 ent->plt.refcount -= 1;
5124 /* Set plt output section type, htab->tls_get_addr, and call the
5125 generic ELF tls_setup function. */
5128 ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
5130 struct ppc_elf_link_hash_table *htab;
5132 htab = ppc_elf_hash_table (info);
5133 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5134 FALSE, FALSE, TRUE);
5135 if (htab->plt_type != PLT_NEW)
5136 htab->params->no_tls_get_addr_opt = TRUE;
5138 if (!htab->params->no_tls_get_addr_opt)
5140 struct elf_link_hash_entry *opt, *tga;
5141 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5142 FALSE, FALSE, TRUE);
5144 && (opt->root.type == bfd_link_hash_defined
5145 || opt->root.type == bfd_link_hash_defweak))
5147 /* If glibc supports an optimized __tls_get_addr call stub,
5148 signalled by the presence of __tls_get_addr_opt, and we'll
5149 be calling __tls_get_addr via a plt call stub, then
5150 make __tls_get_addr point to __tls_get_addr_opt. */
5151 tga = htab->tls_get_addr;
5152 if (htab->elf.dynamic_sections_created
5154 && (tga->type == STT_FUNC
5156 && !(SYMBOL_CALLS_LOCAL (info, tga)
5157 || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
5158 && tga->root.type == bfd_link_hash_undefweak)))
5160 struct plt_entry *ent;
5161 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5162 if (ent->plt.refcount > 0)
5166 tga->root.type = bfd_link_hash_indirect;
5167 tga->root.u.i.link = &opt->root;
5168 ppc_elf_copy_indirect_symbol (info, opt, tga);
5169 if (opt->dynindx != -1)
5171 /* Use __tls_get_addr_opt in dynamic relocations. */
5173 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5175 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5178 htab->tls_get_addr = opt;
5183 htab->params->no_tls_get_addr_opt = TRUE;
5185 if (htab->plt_type == PLT_NEW
5186 && htab->plt != NULL
5187 && htab->plt->output_section != NULL)
5189 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
5190 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
5193 return _bfd_elf_tls_setup (obfd, info);
5196 /* Return TRUE iff REL is a branch reloc with a global symbol matching
5200 branch_reloc_hash_match (const bfd *ibfd,
5201 const Elf_Internal_Rela *rel,
5202 const struct elf_link_hash_entry *hash)
5204 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5205 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5206 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5208 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
5210 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5211 struct elf_link_hash_entry *h;
5213 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5214 while (h->root.type == bfd_link_hash_indirect
5215 || h->root.type == bfd_link_hash_warning)
5216 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5223 /* Run through all the TLS relocs looking for optimization
5227 ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5228 struct bfd_link_info *info)
5232 struct ppc_elf_link_hash_table *htab;
5235 if (!bfd_link_executable (info))
5238 htab = ppc_elf_hash_table (info);
5242 /* Make two passes through the relocs. First time check that tls
5243 relocs involved in setting up a tls_get_addr call are indeed
5244 followed by such a call. If they are not, don't do any tls
5245 optimization. On the second pass twiddle tls_mask flags to
5246 notify relocate_section that optimization can be done, and
5247 adjust got and plt refcounts. */
5248 for (pass = 0; pass < 2; ++pass)
5249 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
5251 Elf_Internal_Sym *locsyms = NULL;
5252 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5253 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
5255 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5256 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5258 Elf_Internal_Rela *relstart, *rel, *relend;
5259 int expecting_tls_get_addr = 0;
5261 /* Read the relocations. */
5262 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5264 if (relstart == NULL)
5267 relend = relstart + sec->reloc_count;
5268 for (rel = relstart; rel < relend; rel++)
5270 enum elf_ppc_reloc_type r_type;
5271 unsigned long r_symndx;
5272 struct elf_link_hash_entry *h = NULL;
5274 char tls_set, tls_clear;
5275 bfd_boolean is_local;
5276 bfd_signed_vma *got_count;
5278 r_symndx = ELF32_R_SYM (rel->r_info);
5279 if (r_symndx >= symtab_hdr->sh_info)
5281 struct elf_link_hash_entry **sym_hashes;
5283 sym_hashes = elf_sym_hashes (ibfd);
5284 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5285 while (h->root.type == bfd_link_hash_indirect
5286 || h->root.type == bfd_link_hash_warning)
5287 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5295 r_type = ELF32_R_TYPE (rel->r_info);
5296 /* If this section has old-style __tls_get_addr calls
5297 without marker relocs, then check that each
5298 __tls_get_addr call reloc is preceded by a reloc
5299 that conceivably belongs to the __tls_get_addr arg
5300 setup insn. If we don't find matching arg setup
5301 relocs, don't do any tls optimization. */
5303 && sec->has_tls_get_addr_call
5305 && h == htab->tls_get_addr
5306 && !expecting_tls_get_addr
5307 && is_branch_reloc (r_type))
5309 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
5310 "TLS optimization disabled\n",
5311 ibfd, sec, rel->r_offset);
5312 if (elf_section_data (sec)->relocs != relstart)
5317 expecting_tls_get_addr = 0;
5320 case R_PPC_GOT_TLSLD16:
5321 case R_PPC_GOT_TLSLD16_LO:
5322 expecting_tls_get_addr = 1;
5325 case R_PPC_GOT_TLSLD16_HI:
5326 case R_PPC_GOT_TLSLD16_HA:
5327 /* These relocs should never be against a symbol
5328 defined in a shared lib. Leave them alone if
5329 that turns out to be the case. */
5338 case R_PPC_GOT_TLSGD16:
5339 case R_PPC_GOT_TLSGD16_LO:
5340 expecting_tls_get_addr = 1;
5343 case R_PPC_GOT_TLSGD16_HI:
5344 case R_PPC_GOT_TLSGD16_HA:
5350 tls_set = TLS_TLS | TLS_TPRELGD;
5354 case R_PPC_GOT_TPREL16:
5355 case R_PPC_GOT_TPREL16_LO:
5356 case R_PPC_GOT_TPREL16_HI:
5357 case R_PPC_GOT_TPREL16_HA:
5362 tls_clear = TLS_TPREL;
5370 expecting_tls_get_addr = 2;
5381 if (!expecting_tls_get_addr
5382 || (expecting_tls_get_addr == 1
5383 && !sec->has_tls_get_addr_call))
5386 if (rel + 1 < relend
5387 && branch_reloc_hash_match (ibfd, rel + 1,
5388 htab->tls_get_addr))
5391 /* Uh oh, we didn't find the expected call. We
5392 could just mark this symbol to exclude it
5393 from tls optimization but it's safer to skip
5394 the entire optimization. */
5395 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
5396 "TLS optimization disabled\n"),
5397 ibfd, sec, rel->r_offset);
5398 if (elf_section_data (sec)->relocs != relstart)
5403 if (expecting_tls_get_addr)
5405 struct plt_entry *ent;
5408 if (bfd_link_pic (info)
5409 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5410 addend = rel[1].r_addend;
5411 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5413 if (ent != NULL && ent->plt.refcount > 0)
5414 ent->plt.refcount -= 1;
5416 if (expecting_tls_get_addr == 2)
5422 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5423 got_count = &h->got.refcount;
5427 bfd_signed_vma *lgot_refs;
5428 struct plt_entry **local_plt;
5431 if (locsyms == NULL)
5433 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5434 if (locsyms == NULL)
5435 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5436 symtab_hdr->sh_info,
5437 0, NULL, NULL, NULL);
5438 if (locsyms == NULL)
5440 if (elf_section_data (sec)->relocs != relstart)
5445 lgot_refs = elf_local_got_refcounts (ibfd);
5446 if (lgot_refs == NULL)
5448 local_plt = (struct plt_entry **)
5449 (lgot_refs + symtab_hdr->sh_info);
5450 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
5451 tls_mask = &lgot_masks[r_symndx];
5452 got_count = &lgot_refs[r_symndx];
5457 /* We managed to get rid of a got entry. */
5462 *tls_mask |= tls_set;
5463 *tls_mask &= ~tls_clear;
5466 if (elf_section_data (sec)->relocs != relstart)
5471 && (symtab_hdr->contents != (unsigned char *) locsyms))
5473 if (!info->keep_memory)
5476 symtab_hdr->contents = (unsigned char *) locsyms;
5482 /* Return true if we have dynamic relocs that apply to read-only sections. */
5485 readonly_dynrelocs (struct elf_link_hash_entry *h)
5487 struct elf_dyn_relocs *p;
5489 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5491 asection *s = p->sec->output_section;
5494 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5495 == (SEC_READONLY | SEC_ALLOC)))
5501 /* Adjust a symbol defined by a dynamic object and referenced by a
5502 regular object. The current definition is in some section of the
5503 dynamic object, but we're not including those sections. We have to
5504 change the definition to something the rest of the link can
5508 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5509 struct elf_link_hash_entry *h)
5511 struct ppc_elf_link_hash_table *htab;
5515 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5516 h->root.root.string);
5519 /* Make sure we know what is going on here. */
5520 htab = ppc_elf_hash_table (info);
5521 BFD_ASSERT (htab->elf.dynobj != NULL
5523 || h->type == STT_GNU_IFUNC
5524 || h->u.weakdef != NULL
5527 && !h->def_regular)));
5529 /* Deal with function syms. */
5530 if (h->type == STT_FUNC
5531 || h->type == STT_GNU_IFUNC
5534 /* Clear procedure linkage table information for any symbol that
5535 won't need a .plt entry. */
5536 struct plt_entry *ent;
5537 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5538 if (ent->plt.refcount > 0)
5541 || (h->type != STT_GNU_IFUNC
5542 && (SYMBOL_CALLS_LOCAL (info, h)
5543 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5544 && h->root.type == bfd_link_hash_undefweak))))
5546 /* A PLT entry is not required/allowed when:
5548 1. We are not using ld.so; because then the PLT entry
5549 can't be set up, so we can't use one. In this case,
5550 ppc_elf_adjust_dynamic_symbol won't even be called.
5552 2. GC has rendered the entry unused.
5554 3. We know for certain that a call to this symbol
5555 will go to this object, or will remain undefined. */
5556 h->plt.plist = NULL;
5558 h->pointer_equality_needed = 0;
5562 /* Taking a function's address in a read/write section
5563 doesn't require us to define the function symbol in the
5564 executable on a plt call stub. A dynamic reloc can
5566 if (h->pointer_equality_needed
5567 && h->type != STT_GNU_IFUNC
5568 && !htab->is_vxworks
5569 && !ppc_elf_hash_entry (h)->has_sda_refs
5570 && !readonly_dynrelocs (h))
5572 h->pointer_equality_needed = 0;
5576 /* After adjust_dynamic_symbol, non_got_ref set in the
5577 non-shared case means that we have allocated space in
5578 .dynbss for the symbol and thus dyn_relocs for this
5579 symbol should be discarded.
5580 If we get here we know we are making a PLT entry for this
5581 symbol, and in an executable we'd normally resolve
5582 relocations against this symbol to the PLT entry. Allow
5583 dynamic relocs if the reference is weak, and the dynamic
5584 relocs will not cause text relocation. */
5585 else if (!h->ref_regular_nonweak
5587 && h->type != STT_GNU_IFUNC
5588 && !htab->is_vxworks
5589 && !ppc_elf_hash_entry (h)->has_sda_refs
5590 && !readonly_dynrelocs (h))
5593 h->protected_def = 0;
5597 h->plt.plist = NULL;
5599 /* If this is a weak symbol, and there is a real definition, the
5600 processor independent code will have arranged for us to see the
5601 real definition first, and we can just use the same value. */
5602 if (h->u.weakdef != NULL)
5604 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5605 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5606 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5607 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5608 if (ELIMINATE_COPY_RELOCS)
5609 h->non_got_ref = h->u.weakdef->non_got_ref;
5613 /* This is a reference to a symbol defined by a dynamic object which
5614 is not a function. */
5616 /* If we are creating a shared library, we must presume that the
5617 only references to the symbol are via the global offset table.
5618 For such cases we need not do anything here; the relocations will
5619 be handled correctly by relocate_section. */
5620 if (bfd_link_pic (info))
5622 h->protected_def = 0;
5626 /* If there are no references to this symbol that do not use the
5627 GOT, we don't need to generate a copy reloc. */
5628 if (!h->non_got_ref)
5630 h->protected_def = 0;
5634 /* Protected variables do not work with .dynbss. The copy in
5635 .dynbss won't be used by the shared library with the protected
5636 definition for the variable. Editing to PIC, or text relocations
5637 are preferable to an incorrect program. */
5638 if (h->protected_def)
5640 if (ELIMINATE_COPY_RELOCS
5641 && ppc_elf_hash_entry (h)->has_addr16_ha
5642 && ppc_elf_hash_entry (h)->has_addr16_lo
5643 && htab->params->pic_fixup == 0
5644 && info->disable_target_specific_optimizations <= 1)
5645 htab->params->pic_fixup = 1;
5650 /* If -z nocopyreloc was given, we won't generate them either. */
5651 if (info->nocopyreloc)
5657 /* If we didn't find any dynamic relocs in read-only sections, then
5658 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5659 We can't do this if there are any small data relocations. This
5660 doesn't work on VxWorks, where we can not have dynamic
5661 relocations (other than copy and jump slot relocations) in an
5663 if (ELIMINATE_COPY_RELOCS
5664 && !ppc_elf_hash_entry (h)->has_sda_refs
5665 && !htab->is_vxworks
5667 && !readonly_dynrelocs (h))
5673 /* We must allocate the symbol in our .dynbss section, which will
5674 become part of the .bss section of the executable. There will be
5675 an entry for this symbol in the .dynsym section. The dynamic
5676 object will contain position independent code, so all references
5677 from the dynamic object to this symbol will go through the global
5678 offset table. The dynamic linker will use the .dynsym entry to
5679 determine the address it must put in the global offset table, so
5680 both the dynamic object and the regular object will refer to the
5681 same memory location for the variable.
5683 Of course, if the symbol is referenced using SDAREL relocs, we
5684 must instead allocate it in .sbss. */
5686 if (ppc_elf_hash_entry (h)->has_sda_refs)
5690 BFD_ASSERT (s != NULL);
5692 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5693 copy the initial value out of the dynamic object and into the
5694 runtime process image. We need to remember the offset into the
5695 .rela.bss section we are going to use. */
5696 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
5700 if (ppc_elf_hash_entry (h)->has_sda_refs)
5701 srel = htab->relsbss;
5703 srel = htab->relbss;
5704 BFD_ASSERT (srel != NULL);
5705 srel->size += sizeof (Elf32_External_Rela);
5709 return _bfd_elf_adjust_dynamic_copy (info, h, s);
5712 /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5713 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5714 specifying the addend on the plt relocation. For -fpic code, the sym
5715 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5716 xxxxxxxx.got2.plt_pic32.<callee>. */
5719 add_stub_sym (struct plt_entry *ent,
5720 struct elf_link_hash_entry *h,
5721 struct bfd_link_info *info)
5723 struct elf_link_hash_entry *sh;
5724 size_t len1, len2, len3;
5727 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5729 if (bfd_link_pic (info))
5730 stub = ".plt_pic32.";
5732 stub = ".plt_call32.";
5734 len1 = strlen (h->root.root.string);
5735 len2 = strlen (stub);
5738 len3 = strlen (ent->sec->name);
5739 name = bfd_malloc (len1 + len2 + len3 + 9);
5742 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5744 memcpy (name + 8, ent->sec->name, len3);
5745 memcpy (name + 8 + len3, stub, len2);
5746 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
5747 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5750 if (sh->root.type == bfd_link_hash_new)
5752 sh->root.type = bfd_link_hash_defined;
5753 sh->root.u.def.section = htab->glink;
5754 sh->root.u.def.value = ent->glink_offset;
5755 sh->ref_regular = 1;
5756 sh->def_regular = 1;
5757 sh->ref_regular_nonweak = 1;
5758 sh->forced_local = 1;
5760 sh->root.linker_def = 1;
5765 /* Allocate NEED contiguous space in .got, and return the offset.
5766 Handles allocation of the got header when crossing 32k. */
5769 allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5772 unsigned int max_before_header;
5774 if (htab->plt_type == PLT_VXWORKS)
5776 where = htab->got->size;
5777 htab->got->size += need;
5781 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5782 if (need <= htab->got_gap)
5784 where = max_before_header - htab->got_gap;
5785 htab->got_gap -= need;
5789 if (htab->got->size + need > max_before_header
5790 && htab->got->size <= max_before_header)
5792 htab->got_gap = max_before_header - htab->got->size;
5793 htab->got->size = max_before_header + htab->got_header_size;
5795 where = htab->got->size;
5796 htab->got->size += need;
5802 /* Allocate space in associated reloc sections for dynamic relocs. */
5805 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5807 struct bfd_link_info *info = inf;
5808 struct ppc_elf_link_hash_entry *eh;
5809 struct ppc_elf_link_hash_table *htab;
5810 struct elf_dyn_relocs *p;
5812 if (h->root.type == bfd_link_hash_indirect)
5815 htab = ppc_elf_hash_table (info);
5816 if (htab->elf.dynamic_sections_created
5817 || h->type == STT_GNU_IFUNC)
5819 struct plt_entry *ent;
5820 bfd_boolean doneone = FALSE;
5821 bfd_vma plt_offset = 0, glink_offset = 0;
5824 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5825 if (ent->plt.refcount > 0)
5827 /* Make sure this symbol is output as a dynamic symbol. */
5828 if (h->dynindx == -1
5831 && htab->elf.dynamic_sections_created)
5833 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5837 dyn = htab->elf.dynamic_sections_created;
5838 if (bfd_link_pic (info)
5839 || h->type == STT_GNU_IFUNC
5840 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5842 asection *s = htab->plt;
5843 if (!dyn || h->dynindx == -1)
5846 if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
5850 plt_offset = s->size;
5853 ent->plt.offset = plt_offset;
5856 if (!doneone || bfd_link_pic (info))
5858 glink_offset = s->size;
5859 s->size += GLINK_ENTRY_SIZE;
5860 if (h == htab->tls_get_addr
5861 && !htab->params->no_tls_get_addr_opt)
5862 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
5865 && !bfd_link_pic (info)
5869 h->root.u.def.section = s;
5870 h->root.u.def.value = glink_offset;
5872 ent->glink_offset = glink_offset;
5874 if (htab->params->emit_stub_syms
5875 && !add_stub_sym (ent, h, info))
5882 /* If this is the first .plt entry, make room
5883 for the special first entry. */
5885 s->size += htab->plt_initial_entry_size;
5887 /* The PowerPC PLT is actually composed of two
5888 parts, the first part is 2 words (for a load
5889 and a jump), and then there is a remaining
5890 word available at the end. */
5891 plt_offset = (htab->plt_initial_entry_size
5892 + (htab->plt_slot_size
5894 - htab->plt_initial_entry_size)
5895 / htab->plt_entry_size)));
5897 /* If this symbol is not defined in a regular
5898 file, and we are not generating a shared
5899 library, then set the symbol to this location
5900 in the .plt. This is to avoid text
5901 relocations, and is required to make
5902 function pointers compare as equal between
5903 the normal executable and the shared library. */
5904 if (! bfd_link_pic (info)
5908 h->root.u.def.section = s;
5909 h->root.u.def.value = plt_offset;
5912 /* Make room for this entry. */
5913 s->size += htab->plt_entry_size;
5914 /* After the 8192nd entry, room for two entries
5916 if (htab->plt_type == PLT_OLD
5917 && (s->size - htab->plt_initial_entry_size)
5918 / htab->plt_entry_size
5919 > PLT_NUM_SINGLE_ENTRIES)
5920 s->size += htab->plt_entry_size;
5922 ent->plt.offset = plt_offset;
5925 /* We also need to make an entry in the .rela.plt section. */
5928 if (!htab->elf.dynamic_sections_created
5929 || h->dynindx == -1)
5930 htab->reliplt->size += sizeof (Elf32_External_Rela);
5933 htab->relplt->size += sizeof (Elf32_External_Rela);
5935 if (htab->plt_type == PLT_VXWORKS)
5937 /* Allocate space for the unloaded relocations. */
5938 if (!bfd_link_pic (info)
5939 && htab->elf.dynamic_sections_created)
5942 == (bfd_vma) htab->plt_initial_entry_size)
5944 htab->srelplt2->size
5945 += (sizeof (Elf32_External_Rela)
5946 * VXWORKS_PLTRESOLVE_RELOCS);
5949 htab->srelplt2->size
5950 += (sizeof (Elf32_External_Rela)
5951 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
5954 /* Every PLT entry has an associated GOT entry in
5956 htab->sgotplt->size += 4;
5963 ent->plt.offset = (bfd_vma) -1;
5966 ent->plt.offset = (bfd_vma) -1;
5970 h->plt.plist = NULL;
5976 h->plt.plist = NULL;
5980 eh = (struct ppc_elf_link_hash_entry *) h;
5981 if (eh->elf.got.refcount > 0
5982 || (ELIMINATE_COPY_RELOCS
5983 && !eh->elf.def_regular
5984 && eh->elf.protected_def
5985 && eh->has_addr16_ha
5986 && eh->has_addr16_lo
5987 && htab->params->pic_fixup > 0))
5992 /* Make sure this symbol is output as a dynamic symbol. */
5993 if (eh->elf.dynindx == -1
5994 && !eh->elf.forced_local
5995 && eh->elf.type != STT_GNU_IFUNC
5996 && htab->elf.dynamic_sections_created)
5998 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
6003 if ((eh->tls_mask & TLS_TLS) != 0)
6005 if ((eh->tls_mask & TLS_LD) != 0)
6007 if (!eh->elf.def_dynamic)
6008 /* We'll just use htab->tlsld_got.offset. This should
6009 always be the case. It's a little odd if we have
6010 a local dynamic reloc against a non-local symbol. */
6011 htab->tlsld_got.refcount += 1;
6015 if ((eh->tls_mask & TLS_GD) != 0)
6017 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
6019 if ((eh->tls_mask & TLS_DTPREL) != 0)
6025 eh->elf.got.offset = (bfd_vma) -1;
6028 eh->elf.got.offset = allocate_got (htab, need);
6029 dyn = htab->elf.dynamic_sections_created;
6030 if ((bfd_link_pic (info)
6031 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
6032 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
6033 || eh->elf.root.type != bfd_link_hash_undefweak))
6035 asection *rsec = htab->relgot;
6037 if (eh->elf.type == STT_GNU_IFUNC)
6038 rsec = htab->reliplt;
6039 /* All the entries we allocated need relocs.
6040 Except LD only needs one. */
6041 if ((eh->tls_mask & TLS_LD) != 0
6042 && eh->elf.def_dynamic)
6044 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
6049 eh->elf.got.offset = (bfd_vma) -1;
6051 if (eh->dyn_relocs == NULL
6052 || !htab->elf.dynamic_sections_created)
6055 /* In the shared -Bsymbolic case, discard space allocated for
6056 dynamic pc-relative relocs against symbols which turn out to be
6057 defined in regular objects. For the normal shared case, discard
6058 space for relocs that have become local due to symbol visibility
6061 if (bfd_link_pic (info))
6063 /* Relocs that use pc_count are those that appear on a call insn,
6064 or certain REL relocs (see must_be_dyn_reloc) that can be
6065 generated via assembly. We want calls to protected symbols to
6066 resolve directly to the function rather than going via the plt.
6067 If people want function pointer comparisons to work as expected
6068 then they should avoid writing weird assembly. */
6069 if (SYMBOL_CALLS_LOCAL (info, h))
6071 struct elf_dyn_relocs **pp;
6073 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
6075 p->count -= p->pc_count;
6084 if (htab->is_vxworks)
6086 struct elf_dyn_relocs **pp;
6088 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
6090 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
6097 /* Discard relocs on undefined symbols that must be local. */
6098 if (eh->dyn_relocs != NULL
6099 && h->root.type == bfd_link_hash_undefined
6100 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
6101 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
6102 eh->dyn_relocs = NULL;
6104 /* Also discard relocs on undefined weak syms with non-default
6106 if (eh->dyn_relocs != NULL
6107 && h->root.type == bfd_link_hash_undefweak)
6109 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
6110 eh->dyn_relocs = NULL;
6112 /* Make sure undefined weak symbols are output as a dynamic
6114 else if (h->dynindx == -1
6118 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6123 else if (ELIMINATE_COPY_RELOCS)
6125 /* For the non-shared case, discard space for relocs against
6126 symbols which turn out to need copy relocs or are not
6131 && !(h->protected_def
6132 && eh->has_addr16_ha
6133 && eh->has_addr16_lo
6134 && htab->params->pic_fixup > 0))
6136 /* Make sure this symbol is output as a dynamic symbol.
6137 Undefined weak syms won't yet be marked as dynamic. */
6138 if (h->dynindx == -1
6139 && !h->forced_local)
6141 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6145 /* If that succeeded, we know we'll be keeping all the
6147 if (h->dynindx != -1)
6151 eh->dyn_relocs = NULL;
6156 /* Finally, allocate space. */
6157 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6159 asection *sreloc = elf_section_data (p->sec)->sreloc;
6160 if (eh->elf.type == STT_GNU_IFUNC)
6161 sreloc = htab->reliplt;
6162 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6168 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
6169 read-only sections. */
6172 maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
6174 if (h->root.type == bfd_link_hash_indirect)
6177 if (readonly_dynrelocs (h))
6179 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
6181 /* Not an error, just cut short the traversal. */
6187 static const unsigned char glink_eh_frame_cie[] =
6189 0, 0, 0, 16, /* length. */
6190 0, 0, 0, 0, /* id. */
6191 1, /* CIE version. */
6192 'z', 'R', 0, /* Augmentation string. */
6193 4, /* Code alignment. */
6194 0x7c, /* Data alignment. */
6196 1, /* Augmentation size. */
6197 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6198 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6201 /* Set the sizes of the dynamic sections. */
6204 ppc_elf_size_dynamic_sections (bfd *output_bfd,
6205 struct bfd_link_info *info)
6207 struct ppc_elf_link_hash_table *htab;
6213 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
6216 htab = ppc_elf_hash_table (info);
6217 BFD_ASSERT (htab->elf.dynobj != NULL);
6219 if (elf_hash_table (info)->dynamic_sections_created)
6221 /* Set the contents of the .interp section to the interpreter. */
6222 if (bfd_link_executable (info) && !info->nointerp)
6224 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
6225 BFD_ASSERT (s != NULL);
6226 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6227 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6231 if (htab->plt_type == PLT_OLD)
6232 htab->got_header_size = 16;
6233 else if (htab->plt_type == PLT_NEW)
6234 htab->got_header_size = 12;
6236 /* Set up .got offsets for local syms, and space for local dynamic
6238 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
6240 bfd_signed_vma *local_got;
6241 bfd_signed_vma *end_local_got;
6242 struct plt_entry **local_plt;
6243 struct plt_entry **end_local_plt;
6245 bfd_size_type locsymcount;
6246 Elf_Internal_Shdr *symtab_hdr;
6248 if (!is_ppc_elf (ibfd))
6251 for (s = ibfd->sections; s != NULL; s = s->next)
6253 struct ppc_dyn_relocs *p;
6255 for (p = ((struct ppc_dyn_relocs *)
6256 elf_section_data (s)->local_dynrel);
6260 if (!bfd_is_abs_section (p->sec)
6261 && bfd_is_abs_section (p->sec->output_section))
6263 /* Input section has been discarded, either because
6264 it is a copy of a linkonce section or due to
6265 linker script /DISCARD/, so we'll be discarding
6268 else if (htab->is_vxworks
6269 && strcmp (p->sec->output_section->name,
6272 /* Relocations in vxworks .tls_vars sections are
6273 handled specially by the loader. */
6275 else if (p->count != 0)
6277 asection *sreloc = elf_section_data (p->sec)->sreloc;
6279 sreloc = htab->reliplt;
6280 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6281 if ((p->sec->output_section->flags
6282 & (SEC_READONLY | SEC_ALLOC))
6283 == (SEC_READONLY | SEC_ALLOC))
6284 info->flags |= DF_TEXTREL;
6289 local_got = elf_local_got_refcounts (ibfd);
6293 symtab_hdr = &elf_symtab_hdr (ibfd);
6294 locsymcount = symtab_hdr->sh_info;
6295 end_local_got = local_got + locsymcount;
6296 local_plt = (struct plt_entry **) end_local_got;
6297 end_local_plt = local_plt + locsymcount;
6298 lgot_masks = (char *) end_local_plt;
6300 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6303 unsigned int need = 0;
6304 if ((*lgot_masks & TLS_TLS) != 0)
6306 if ((*lgot_masks & TLS_GD) != 0)
6308 if ((*lgot_masks & TLS_LD) != 0)
6309 htab->tlsld_got.refcount += 1;
6310 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6312 if ((*lgot_masks & TLS_DTPREL) != 0)
6318 *local_got = (bfd_vma) -1;
6321 *local_got = allocate_got (htab, need);
6322 if (bfd_link_pic (info))
6324 asection *srel = htab->relgot;
6325 if ((*lgot_masks & PLT_IFUNC) != 0)
6326 srel = htab->reliplt;
6327 srel->size += need * (sizeof (Elf32_External_Rela) / 4);
6332 *local_got = (bfd_vma) -1;
6334 if (htab->is_vxworks)
6337 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6338 for (; local_plt < end_local_plt; ++local_plt)
6340 struct plt_entry *ent;
6341 bfd_boolean doneone = FALSE;
6342 bfd_vma plt_offset = 0, glink_offset = 0;
6344 for (ent = *local_plt; ent != NULL; ent = ent->next)
6345 if (ent->plt.refcount > 0)
6351 plt_offset = s->size;
6354 ent->plt.offset = plt_offset;
6357 if (!doneone || bfd_link_pic (info))
6359 glink_offset = s->size;
6360 s->size += GLINK_ENTRY_SIZE;
6362 ent->glink_offset = glink_offset;
6366 htab->reliplt->size += sizeof (Elf32_External_Rela);
6371 ent->plt.offset = (bfd_vma) -1;
6375 /* Allocate space for global sym dynamic relocs. */
6376 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6378 if (htab->tlsld_got.refcount > 0)
6380 htab->tlsld_got.offset = allocate_got (htab, 8);
6381 if (bfd_link_pic (info))
6382 htab->relgot->size += sizeof (Elf32_External_Rela);
6385 htab->tlsld_got.offset = (bfd_vma) -1;
6387 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
6389 unsigned int g_o_t = 32768;
6391 /* If we haven't allocated the header, do so now. When we get here,
6392 for old plt/got the got size will be 0 to 32764 (not allocated),
6393 or 32780 to 65536 (header allocated). For new plt/got, the
6394 corresponding ranges are 0 to 32768 and 32780 to 65536. */
6395 if (htab->got->size <= 32768)
6397 g_o_t = htab->got->size;
6398 if (htab->plt_type == PLT_OLD)
6400 htab->got->size += htab->got_header_size;
6403 htab->elf.hgot->root.u.def.value = g_o_t;
6405 if (bfd_link_pic (info))
6407 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6409 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6410 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
6412 if (info->emitrelocations)
6414 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6416 if (sda != NULL && sda->ref_regular)
6417 sda->root.u.def.section->flags |= SEC_KEEP;
6418 sda = htab->sdata[1].sym;
6419 if (sda != NULL && sda->ref_regular)
6420 sda->root.u.def.section->flags |= SEC_KEEP;
6423 if (htab->glink != NULL
6424 && htab->glink->size != 0
6425 && htab->elf.dynamic_sections_created)
6427 htab->glink_pltresolve = htab->glink->size;
6428 /* Space for the branch table. */
6429 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6430 /* Pad out to align the start of PLTresolve. */
6431 htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
6433 htab->glink->size += GLINK_PLTRESOLVE;
6435 if (htab->params->emit_stub_syms)
6437 struct elf_link_hash_entry *sh;
6438 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6439 TRUE, FALSE, FALSE);
6442 if (sh->root.type == bfd_link_hash_new)
6444 sh->root.type = bfd_link_hash_defined;
6445 sh->root.u.def.section = htab->glink;
6446 sh->root.u.def.value = htab->glink_pltresolve;
6447 sh->ref_regular = 1;
6448 sh->def_regular = 1;
6449 sh->ref_regular_nonweak = 1;
6450 sh->forced_local = 1;
6452 sh->root.linker_def = 1;
6454 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6455 TRUE, FALSE, FALSE);
6458 if (sh->root.type == bfd_link_hash_new)
6460 sh->root.type = bfd_link_hash_defined;
6461 sh->root.u.def.section = htab->glink;
6462 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6463 sh->ref_regular = 1;
6464 sh->def_regular = 1;
6465 sh->ref_regular_nonweak = 1;
6466 sh->forced_local = 1;
6468 sh->root.linker_def = 1;
6473 if (htab->glink != NULL
6474 && htab->glink->size != 0
6475 && htab->glink_eh_frame != NULL
6476 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6477 && _bfd_elf_eh_frame_present (info))
6479 s = htab->glink_eh_frame;
6480 s->size = sizeof (glink_eh_frame_cie) + 20;
6481 if (bfd_link_pic (info))
6484 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6489 /* We've now determined the sizes of the various dynamic sections.
6490 Allocate memory for them. */
6492 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
6494 bfd_boolean strip_section = TRUE;
6496 if ((s->flags & SEC_LINKER_CREATED) == 0)
6502 /* We'd like to strip these sections if they aren't needed, but if
6503 we've exported dynamic symbols from them we must leave them.
6504 It's too late to tell BFD to get rid of the symbols. */
6505 if (htab->elf.hplt != NULL)
6506 strip_section = FALSE;
6507 /* Strip this section if we don't need it; see the
6510 else if (s == htab->iplt
6512 || s == htab->glink_eh_frame
6513 || s == htab->sgotplt
6515 || s == htab->dynbss
6516 || s == htab->dynsbss)
6518 /* Strip these too. */
6520 else if (s == htab->sdata[0].section
6521 || s == htab->sdata[1].section)
6523 strip_section = (s->flags & SEC_KEEP) == 0;
6525 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6530 /* Remember whether there are any relocation sections. */
6533 /* We use the reloc_count field as a counter if we need
6534 to copy relocs into the output file. */
6540 /* It's not one of our sections, so don't allocate space. */
6544 if (s->size == 0 && strip_section)
6546 /* If we don't need this section, strip it from the
6547 output file. This is mostly to handle .rela.bss and
6548 .rela.plt. We must create both sections in
6549 create_dynamic_sections, because they must be created
6550 before the linker maps input sections to output
6551 sections. The linker does that before
6552 adjust_dynamic_symbol is called, and it is that
6553 function which decides whether anything needs to go
6554 into these sections. */
6555 s->flags |= SEC_EXCLUDE;
6559 if ((s->flags & SEC_HAS_CONTENTS) == 0)
6562 /* Allocate memory for the section contents. */
6563 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6564 if (s->contents == NULL)
6568 if (htab->elf.dynamic_sections_created)
6570 /* Add some entries to the .dynamic section. We fill in the
6571 values later, in ppc_elf_finish_dynamic_sections, but we
6572 must add the entries now so that we get the correct size for
6573 the .dynamic section. The DT_DEBUG entry is filled in by the
6574 dynamic linker and used by the debugger. */
6575 #define add_dynamic_entry(TAG, VAL) \
6576 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6578 if (bfd_link_executable (info))
6580 if (!add_dynamic_entry (DT_DEBUG, 0))
6584 if (htab->plt != NULL && htab->plt->size != 0)
6586 if (!add_dynamic_entry (DT_PLTGOT, 0)
6587 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6588 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6589 || !add_dynamic_entry (DT_JMPREL, 0))
6593 if (htab->plt_type == PLT_NEW
6594 && htab->glink != NULL
6595 && htab->glink->size != 0)
6597 if (!add_dynamic_entry (DT_PPC_GOT, 0))
6599 if (!htab->params->no_tls_get_addr_opt
6600 && htab->tls_get_addr != NULL
6601 && htab->tls_get_addr->plt.plist != NULL
6602 && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
6608 if (!add_dynamic_entry (DT_RELA, 0)
6609 || !add_dynamic_entry (DT_RELASZ, 0)
6610 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6614 /* If any dynamic relocs apply to a read-only section, then we
6615 need a DT_TEXTREL entry. */
6616 if ((info->flags & DF_TEXTREL) == 0)
6617 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
6620 if ((info->flags & DF_TEXTREL) != 0)
6622 if (!add_dynamic_entry (DT_TEXTREL, 0))
6625 if (htab->is_vxworks
6626 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6629 #undef add_dynamic_entry
6631 if (htab->glink_eh_frame != NULL
6632 && htab->glink_eh_frame->contents != NULL)
6634 unsigned char *p = htab->glink_eh_frame->contents;
6637 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6638 /* CIE length (rewrite in case little-endian). */
6639 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6640 p += sizeof (glink_eh_frame_cie);
6642 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6643 bfd_put_32 (htab->elf.dynobj, val, p);
6646 val = p - htab->glink_eh_frame->contents;
6647 bfd_put_32 (htab->elf.dynobj, val, p);
6649 /* Offset to .glink. Set later. */
6652 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6657 if (bfd_link_pic (info)
6658 && htab->elf.dynamic_sections_created)
6660 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6662 *p++ = DW_CFA_advance_loc + adv;
6665 *p++ = DW_CFA_advance_loc1;
6668 else if (adv < 65536)
6670 *p++ = DW_CFA_advance_loc2;
6671 bfd_put_16 (htab->elf.dynobj, adv, p);
6676 *p++ = DW_CFA_advance_loc4;
6677 bfd_put_32 (htab->elf.dynobj, adv, p);
6680 *p++ = DW_CFA_register;
6683 *p++ = DW_CFA_advance_loc + 4;
6684 *p++ = DW_CFA_restore_extended;
6687 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6688 == htab->glink_eh_frame->size);
6694 /* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
6695 if it looks like nothing is using them. */
6698 maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
6700 struct elf_link_hash_entry *sda = lsect->sym;
6702 if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
6706 s = bfd_get_section_by_name (output_bfd, lsect->name);
6707 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6709 s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
6710 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6712 sda->def_regular = 0;
6713 /* This is somewhat magic. See elf_link_output_extsym. */
6714 sda->ref_dynamic = 1;
6715 sda->forced_local = 0;
6722 ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
6724 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
6728 maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
6729 maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
6734 /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6737 ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6739 if (h->plt.plist != NULL
6741 && (!h->pointer_equality_needed
6742 || !h->ref_regular_nonweak))
6745 return _bfd_elf_hash_symbol (h);
6748 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6750 /* Relaxation trampolines. r12 is available for clobbering (r11, is
6751 used for some functions that are allowed to break the ABI). */
6752 static const int shared_stub_entry[] =
6754 0x7c0802a6, /* mflr 0 */
6755 0x429f0005, /* bcl 20, 31, .Lxxx */
6756 0x7d8802a6, /* mflr 12 */
6757 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
6758 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
6759 0x7c0803a6, /* mtlr 0 */
6760 0x7d8903a6, /* mtctr 12 */
6761 0x4e800420, /* bctr */
6764 static const int stub_entry[] =
6766 0x3d800000, /* lis 12,xxx@ha */
6767 0x398c0000, /* addi 12,12,xxx@l */
6768 0x7d8903a6, /* mtctr 12 */
6769 0x4e800420, /* bctr */
6772 struct ppc_elf_relax_info
6774 unsigned int workaround_size;
6775 unsigned int picfixup_size;
6778 /* This function implements long branch trampolines, and the ppc476
6779 icache bug workaround. Any section needing trampolines or patch
6780 space for the workaround has its size extended so that we can
6781 add trampolines at the end of the section. */
6784 ppc_elf_relax_section (bfd *abfd,
6786 struct bfd_link_info *link_info,
6789 struct one_branch_fixup
6791 struct one_branch_fixup *next;
6793 /* Final link, can use the symbol offset. For a
6794 relocatable link we use the symbol's index. */
6799 Elf_Internal_Shdr *symtab_hdr;
6800 bfd_byte *contents = NULL;
6801 Elf_Internal_Sym *isymbuf = NULL;
6802 Elf_Internal_Rela *internal_relocs = NULL;
6803 Elf_Internal_Rela *irel, *irelend = NULL;
6804 struct one_branch_fixup *branch_fixups = NULL;
6805 struct ppc_elf_relax_info *relax_info = NULL;
6806 unsigned changes = 0;
6807 bfd_boolean workaround_change;
6808 struct ppc_elf_link_hash_table *htab;
6809 bfd_size_type trampbase, trampoff, newsize, picfixup_size;
6811 bfd_boolean maybe_pasted;
6815 /* No need to do anything with non-alloc or non-code sections. */
6816 if ((isec->flags & SEC_ALLOC) == 0
6817 || (isec->flags & SEC_CODE) == 0
6818 || (isec->flags & SEC_LINKER_CREATED) != 0
6822 /* We cannot represent the required PIC relocs in the output, so don't
6823 do anything. The linker doesn't support mixing -shared and -r
6825 if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info))
6828 htab = ppc_elf_hash_table (link_info);
6832 isec->size = (isec->size + 3) & -4;
6833 if (isec->rawsize == 0)
6834 isec->rawsize = isec->size;
6835 trampbase = isec->size;
6837 BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
6838 || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
6839 isec->sec_info_type = SEC_INFO_TYPE_TARGET;
6841 if (htab->params->ppc476_workaround
6842 || htab->params->pic_fixup > 0)
6844 if (elf_section_data (isec)->sec_info == NULL)
6846 elf_section_data (isec)->sec_info
6847 = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
6848 if (elf_section_data (isec)->sec_info == NULL)
6851 relax_info = elf_section_data (isec)->sec_info;
6852 trampbase -= relax_info->workaround_size;
6855 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6856 || strcmp (isec->output_section->name, ".fini") == 0);
6857 /* Space for a branch around any trampolines. */
6858 trampoff = trampbase;
6859 if (maybe_pasted && trampbase == isec->rawsize)
6862 symtab_hdr = &elf_symtab_hdr (abfd);
6864 if (htab->params->branch_trampolines
6865 || htab->params->pic_fixup > 0)
6867 /* Get a copy of the native relocations. */
6868 if (isec->reloc_count != 0)
6870 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6871 link_info->keep_memory);
6872 if (internal_relocs == NULL)
6876 got2 = bfd_get_section_by_name (abfd, ".got2");
6878 irelend = internal_relocs + isec->reloc_count;
6879 for (irel = internal_relocs; irel < irelend; irel++)
6881 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
6884 struct one_branch_fixup *f;
6885 size_t insn_offset = 0;
6886 bfd_vma max_branch_offset = 0, val;
6889 struct elf_link_hash_entry *h;
6890 struct plt_entry **plist;
6891 unsigned char sym_type;
6896 case R_PPC_LOCAL24PC:
6897 case R_PPC_PLTREL24:
6898 max_branch_offset = 1 << 25;
6902 case R_PPC_REL14_BRTAKEN:
6903 case R_PPC_REL14_BRNTAKEN:
6904 max_branch_offset = 1 << 15;
6907 case R_PPC_ADDR16_HA:
6908 if (htab->params->pic_fixup > 0)
6916 /* Get the value of the symbol referred to by the reloc. */
6918 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
6920 /* A local symbol. */
6921 Elf_Internal_Sym *isym;
6923 /* Read this BFD's local symbols. */
6924 if (isymbuf == NULL)
6926 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
6927 if (isymbuf == NULL)
6928 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
6929 symtab_hdr->sh_info, 0,
6934 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6935 if (isym->st_shndx == SHN_UNDEF)
6936 tsec = bfd_und_section_ptr;
6937 else if (isym->st_shndx == SHN_ABS)
6938 tsec = bfd_abs_section_ptr;
6939 else if (isym->st_shndx == SHN_COMMON)
6940 tsec = bfd_com_section_ptr;
6942 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
6944 toff = isym->st_value;
6945 sym_type = ELF_ST_TYPE (isym->st_info);
6949 /* Global symbol handling. */
6952 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6953 h = elf_sym_hashes (abfd)[indx];
6955 while (h->root.type == bfd_link_hash_indirect
6956 || h->root.type == bfd_link_hash_warning)
6957 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6959 if (h->root.type == bfd_link_hash_defined
6960 || h->root.type == bfd_link_hash_defweak)
6962 tsec = h->root.u.def.section;
6963 toff = h->root.u.def.value;
6965 else if (h->root.type == bfd_link_hash_undefined
6966 || h->root.type == bfd_link_hash_undefweak)
6968 tsec = bfd_und_section_ptr;
6969 toff = bfd_link_relocatable (link_info) ? indx : 0;
6974 /* If this branch is to __tls_get_addr then we may later
6975 optimise away the call. We won't be needing a long-
6976 branch stub in that case. */
6977 if (bfd_link_executable (link_info)
6978 && h == htab->tls_get_addr
6979 && irel != internal_relocs)
6981 unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
6982 unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
6983 unsigned int tls_mask = 0;
6985 /* The previous reloc should be one of R_PPC_TLSGD or
6986 R_PPC_TLSLD, or for older object files, a reloc
6987 on the __tls_get_addr arg setup insn. Get tls
6988 mask bits from the symbol on that reloc. */
6989 if (t_symndx < symtab_hdr->sh_info)
6991 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6993 if (local_got_offsets != NULL)
6995 struct plt_entry **local_plt = (struct plt_entry **)
6996 (local_got_offsets + symtab_hdr->sh_info);
6997 char *lgot_masks = (char *)
6998 (local_plt + symtab_hdr->sh_info);
6999 tls_mask = lgot_masks[t_symndx];
7004 struct elf_link_hash_entry *th
7005 = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
7007 while (th->root.type == bfd_link_hash_indirect
7008 || th->root.type == bfd_link_hash_warning)
7009 th = (struct elf_link_hash_entry *) th->root.u.i.link;
7012 = ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
7015 /* The mask bits tell us if the call will be
7017 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
7018 && (t_rtype == R_PPC_TLSGD
7019 || t_rtype == R_PPC_GOT_TLSGD16
7020 || t_rtype == R_PPC_GOT_TLSGD16_LO))
7022 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
7023 && (t_rtype == R_PPC_TLSLD
7024 || t_rtype == R_PPC_GOT_TLSLD16
7025 || t_rtype == R_PPC_GOT_TLSLD16_LO))
7032 if (r_type == R_PPC_ADDR16_HA)
7037 && ppc_elf_hash_entry (h)->has_addr16_ha
7038 && ppc_elf_hash_entry (h)->has_addr16_lo)
7039 picfixup_size += 12;
7043 /* The condition here under which we call find_plt_ent must
7044 match that in relocate_section. If we call find_plt_ent here
7045 but not in relocate_section, or vice versa, then the branch
7046 destination used here may be incorrect. */
7050 /* We know is_branch_reloc (r_type) is true. */
7051 if (h->type == STT_GNU_IFUNC
7052 || r_type == R_PPC_PLTREL24)
7053 plist = &h->plt.plist;
7055 else if (sym_type == STT_GNU_IFUNC
7056 && elf_local_got_offsets (abfd) != NULL)
7058 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7059 struct plt_entry **local_plt = (struct plt_entry **)
7060 (local_got_offsets + symtab_hdr->sh_info);
7061 plist = local_plt + ELF32_R_SYM (irel->r_info);
7066 struct plt_entry *ent;
7068 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info))
7069 addend = irel->r_addend;
7070 ent = find_plt_ent (plist, got2, addend);
7073 if (htab->plt_type == PLT_NEW
7075 || !htab->elf.dynamic_sections_created
7076 || h->dynindx == -1)
7079 toff = ent->glink_offset;
7084 toff = ent->plt.offset;
7089 /* If the branch and target are in the same section, you have
7090 no hope of adding stubs. We'll error out later should the
7095 /* There probably isn't any reason to handle symbols in
7096 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
7097 attribute for a code section, and we are only looking at
7098 branches. However, implement it correctly here as a
7099 reference for other target relax_section functions. */
7100 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
7102 /* At this stage in linking, no SEC_MERGE symbol has been
7103 adjusted, so all references to such symbols need to be
7104 passed through _bfd_merged_section_offset. (Later, in
7105 relocate_section, all SEC_MERGE symbols *except* for
7106 section symbols have been adjusted.)
7108 gas may reduce relocations against symbols in SEC_MERGE
7109 sections to a relocation against the section symbol when
7110 the original addend was zero. When the reloc is against
7111 a section symbol we should include the addend in the
7112 offset passed to _bfd_merged_section_offset, since the
7113 location of interest is the original symbol. On the
7114 other hand, an access to "sym+addend" where "sym" is not
7115 a section symbol should not include the addend; Such an
7116 access is presumed to be an offset from "sym"; The
7117 location of interest is just "sym". */
7118 if (sym_type == STT_SECTION)
7119 toff += irel->r_addend;
7122 = _bfd_merged_section_offset (abfd, &tsec,
7123 elf_section_data (tsec)->sec_info,
7126 if (sym_type != STT_SECTION)
7127 toff += irel->r_addend;
7129 /* PLTREL24 addends are special. */
7130 else if (r_type != R_PPC_PLTREL24)
7131 toff += irel->r_addend;
7133 /* Attempted -shared link of non-pic code loses. */
7134 if ((!bfd_link_relocatable (link_info)
7135 && tsec == bfd_und_section_ptr)
7136 || tsec->output_section == NULL
7137 || (tsec->owner != NULL
7138 && (tsec->owner->flags & BFD_PLUGIN) != 0))
7141 roff = irel->r_offset;
7143 /* If the branch is in range, no need to do anything. */
7144 if (tsec != bfd_und_section_ptr
7145 && (!bfd_link_relocatable (link_info)
7146 /* A relocatable link may have sections moved during
7147 final link, so do not presume they remain in range. */
7148 || tsec->output_section == isec->output_section))
7150 bfd_vma symaddr, reladdr;
7152 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7153 reladdr = isec->output_section->vma + isec->output_offset + roff;
7154 if (symaddr - reladdr + max_branch_offset
7155 < 2 * max_branch_offset)
7159 /* Look for an existing fixup to this address. */
7160 for (f = branch_fixups; f ; f = f->next)
7161 if (f->tsec == tsec && f->toff == toff)
7167 unsigned long stub_rtype;
7169 val = trampoff - roff;
7170 if (val >= max_branch_offset)
7171 /* Oh dear, we can't reach a trampoline. Don't try to add
7172 one. We'll report an error later. */
7175 if (bfd_link_pic (link_info))
7177 size = 4 * ARRAY_SIZE (shared_stub_entry);
7182 size = 4 * ARRAY_SIZE (stub_entry);
7185 stub_rtype = R_PPC_RELAX;
7186 if (tsec == htab->plt
7187 || tsec == htab->glink)
7189 stub_rtype = R_PPC_RELAX_PLT;
7190 if (r_type == R_PPC_PLTREL24)
7191 stub_rtype = R_PPC_RELAX_PLTREL24;
7194 /* Hijack the old relocation. Since we need two
7195 relocations for this use a "composite" reloc. */
7196 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
7198 irel->r_offset = trampoff + insn_offset;
7199 if (r_type == R_PPC_PLTREL24
7200 && stub_rtype != R_PPC_RELAX_PLTREL24)
7203 /* Record the fixup so we don't do it again this section. */
7204 f = bfd_malloc (sizeof (*f));
7205 f->next = branch_fixups;
7208 f->trampoff = trampoff;
7216 val = f->trampoff - roff;
7217 if (val >= max_branch_offset)
7220 /* Nop out the reloc, since we're finalizing things here. */
7221 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7224 /* Get the section contents. */
7225 if (contents == NULL)
7227 /* Get cached copy if it exists. */
7228 if (elf_section_data (isec)->this_hdr.contents != NULL)
7229 contents = elf_section_data (isec)->this_hdr.contents;
7230 /* Go get them off disk. */
7231 else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
7235 /* Fix up the existing branch to hit the trampoline. */
7236 hit_addr = contents + roff;
7240 case R_PPC_LOCAL24PC:
7241 case R_PPC_PLTREL24:
7242 t0 = bfd_get_32 (abfd, hit_addr);
7244 t0 |= val & 0x3fffffc;
7245 bfd_put_32 (abfd, t0, hit_addr);
7249 case R_PPC_REL14_BRTAKEN:
7250 case R_PPC_REL14_BRNTAKEN:
7251 t0 = bfd_get_32 (abfd, hit_addr);
7254 bfd_put_32 (abfd, t0, hit_addr);
7259 while (branch_fixups != NULL)
7261 struct one_branch_fixup *f = branch_fixups;
7262 branch_fixups = branch_fixups->next;
7267 workaround_change = FALSE;
7269 if (htab->params->ppc476_workaround
7270 && (!bfd_link_relocatable (link_info)
7271 || isec->output_section->alignment_power >= htab->params->pagesize_p2))
7273 bfd_vma addr, end_addr;
7274 unsigned int crossings;
7275 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
7277 addr = isec->output_section->vma + isec->output_offset;
7278 end_addr = addr + trampoff;
7280 crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
7283 /* Keep space aligned, to ensure the patch code itself does
7284 not cross a page. Don't decrease size calculated on a
7285 previous pass as otherwise we might never settle on a layout. */
7286 newsize = 15 - ((end_addr - 1) & 15);
7287 newsize += crossings * 16;
7288 if (relax_info->workaround_size < newsize)
7290 relax_info->workaround_size = newsize;
7291 workaround_change = TRUE;
7293 /* Ensure relocate_section is called. */
7294 isec->flags |= SEC_RELOC;
7296 newsize = trampoff + relax_info->workaround_size;
7299 if (htab->params->pic_fixup > 0)
7301 picfixup_size -= relax_info->picfixup_size;
7302 if (picfixup_size != 0)
7303 relax_info->picfixup_size += picfixup_size;
7304 newsize += relax_info->picfixup_size;
7307 if (changes != 0 || picfixup_size != 0 || workaround_change)
7308 isec->size = newsize;
7311 && symtab_hdr->contents != (unsigned char *) isymbuf)
7313 if (! link_info->keep_memory)
7317 /* Cache the symbols for elf_link_input_bfd. */
7318 symtab_hdr->contents = (unsigned char *) isymbuf;
7322 if (contents != NULL
7323 && elf_section_data (isec)->this_hdr.contents != contents)
7325 if (!changes && !link_info->keep_memory)
7329 /* Cache the section contents for elf_link_input_bfd. */
7330 elf_section_data (isec)->this_hdr.contents = contents;
7334 changes += picfixup_size;
7337 /* Append sufficient NOP relocs so we can write out relocation
7338 information for the trampolines. */
7339 Elf_Internal_Shdr *rel_hdr;
7340 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7341 * sizeof (*new_relocs));
7346 memcpy (new_relocs, internal_relocs,
7347 isec->reloc_count * sizeof (*new_relocs));
7348 for (ix = changes; ix--;)
7350 irel = new_relocs + ix + isec->reloc_count;
7352 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7354 if (internal_relocs != elf_section_data (isec)->relocs)
7355 free (internal_relocs);
7356 elf_section_data (isec)->relocs = new_relocs;
7357 isec->reloc_count += changes;
7358 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7359 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
7361 else if (internal_relocs != NULL
7362 && elf_section_data (isec)->relocs != internal_relocs)
7363 free (internal_relocs);
7365 *again = changes != 0 || workaround_change;
7369 while (branch_fixups != NULL)
7371 struct one_branch_fixup *f = branch_fixups;
7372 branch_fixups = branch_fixups->next;
7375 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7377 if (contents != NULL
7378 && elf_section_data (isec)->this_hdr.contents != contents)
7380 if (internal_relocs != NULL
7381 && elf_section_data (isec)->relocs != internal_relocs)
7382 free (internal_relocs);
7386 /* What to do when ld finds relocations against symbols defined in
7387 discarded sections. */
7390 ppc_elf_action_discarded (asection *sec)
7392 if (strcmp (".fixup", sec->name) == 0)
7395 if (strcmp (".got2", sec->name) == 0)
7398 return _bfd_elf_default_action_discarded (sec);
7401 /* Fill in the address for a pointer generated in a linker section. */
7404 elf_finish_pointer_linker_section (bfd *input_bfd,
7405 elf_linker_section_t *lsect,
7406 struct elf_link_hash_entry *h,
7408 const Elf_Internal_Rela *rel)
7410 elf_linker_section_pointers_t *linker_section_ptr;
7412 BFD_ASSERT (lsect != NULL);
7416 /* Handle global symbol. */
7417 struct ppc_elf_link_hash_entry *eh;
7419 eh = (struct ppc_elf_link_hash_entry *) h;
7420 BFD_ASSERT (eh->elf.def_regular);
7421 linker_section_ptr = eh->linker_section_pointer;
7425 /* Handle local symbol. */
7426 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
7428 BFD_ASSERT (is_ppc_elf (input_bfd));
7429 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
7430 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7433 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7436 BFD_ASSERT (linker_section_ptr != NULL);
7438 /* Offset will always be a multiple of four, so use the bottom bit
7439 as a "written" flag. */
7440 if ((linker_section_ptr->offset & 1) == 0)
7442 bfd_put_32 (lsect->section->owner,
7443 relocation + linker_section_ptr->addend,
7444 lsect->section->contents + linker_section_ptr->offset);
7445 linker_section_ptr->offset += 1;
7448 relocation = (lsect->section->output_section->vma
7449 + lsect->section->output_offset
7450 + linker_section_ptr->offset - 1
7451 - SYM_VAL (lsect->sym));
7455 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7456 lsect->name, (long) relocation, (long) relocation);
7462 #define PPC_LO(v) ((v) & 0xffff)
7463 #define PPC_HI(v) (((v) >> 16) & 0xffff)
7464 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
7467 write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
7468 struct bfd_link_info *info)
7470 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7471 bfd *output_bfd = info->output_bfd;
7474 plt = ((ent->plt.offset & ~1)
7475 + plt_sec->output_section->vma
7476 + plt_sec->output_offset);
7478 if (bfd_link_pic (info))
7482 if (ent->addend >= 32768)
7484 + ent->sec->output_section->vma
7485 + ent->sec->output_offset);
7486 else if (htab->elf.hgot != NULL)
7487 got = SYM_VAL (htab->elf.hgot);
7491 if (plt + 0x8000 < 0x10000)
7493 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7495 bfd_put_32 (output_bfd, MTCTR_11, p);
7497 bfd_put_32 (output_bfd, BCTR, p);
7499 bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
7504 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7506 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7508 bfd_put_32 (output_bfd, MTCTR_11, p);
7510 bfd_put_32 (output_bfd, BCTR, p);
7516 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7518 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7520 bfd_put_32 (output_bfd, MTCTR_11, p);
7522 bfd_put_32 (output_bfd, BCTR, p);
7527 /* Return true if symbol is defined statically. */
7530 is_static_defined (struct elf_link_hash_entry *h)
7532 return ((h->root.type == bfd_link_hash_defined
7533 || h->root.type == bfd_link_hash_defweak)
7534 && h->root.u.def.section != NULL
7535 && h->root.u.def.section->output_section != NULL);
7538 /* If INSN is an opcode that may be used with an @tls operand, return
7539 the transformed insn for TLS optimisation, otherwise return 0. If
7540 REG is non-zero only match an insn with RB or RA equal to REG. */
7543 _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7547 if ((insn & (0x3f << 26)) != 31 << 26)
7550 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7551 rtra = insn & ((1 << 26) - (1 << 16));
7552 else if (((insn >> 16) & 0x1f) == reg)
7553 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7557 if ((insn & (0x3ff << 1)) == 266 << 1)
7560 else if ((insn & (0x1f << 1)) == 23 << 1
7561 && ((insn & (0x1f << 6)) < 14 << 6
7562 || ((insn & (0x1f << 6)) >= 16 << 6
7563 && (insn & (0x1f << 6)) < 24 << 6)))
7564 /* load and store indexed -> dform. */
7565 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7566 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7567 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7568 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7569 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7571 insn = (58 << 26) | 2;
7578 /* If INSN is an opcode that may be used with an @tprel operand, return
7579 the transformed insn for an undefined weak symbol, ie. with the
7580 thread pointer REG operand removed. Otherwise return 0. */
7583 _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7585 if ((insn & (0x1f << 16)) == reg << 16
7586 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7587 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7588 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7589 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7590 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7591 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7592 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7593 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7594 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7595 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7596 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7597 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7598 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7599 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7600 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7601 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7603 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7604 && ((insn & 3) == 0 || (insn & 3) == 3))))
7606 insn &= ~(0x1f << 16);
7608 else if ((insn & (0x1f << 21)) == reg << 21
7609 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7610 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7611 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7613 insn &= ~(0x1f << 21);
7614 insn |= (insn & (0x1f << 16)) << 5;
7615 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7616 insn -= 2 >> 26; /* convert to ori,oris */
7624 is_insn_ds_form (unsigned int insn)
7626 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7627 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7628 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7629 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7633 is_insn_dq_form (unsigned int insn)
7635 return ((insn & (0x3f << 26)) == 56u << 26 /* lq */
7636 || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
7637 && (insn & 3) == 1));
7640 /* The RELOCATE_SECTION function is called by the ELF backend linker
7641 to handle the relocations for a section.
7643 The relocs are always passed as Rela structures; if the section
7644 actually uses Rel structures, the r_addend field will always be
7647 This function is responsible for adjust the section contents as
7648 necessary, and (if using Rela relocs and generating a
7649 relocatable output file) adjusting the reloc addend as
7652 This function does not have to worry about setting the reloc
7653 address or the reloc symbol index.
7655 LOCAL_SYMS is a pointer to the swapped in local symbols.
7657 LOCAL_SECTIONS is an array giving the section in the input file
7658 corresponding to the st_shndx field of each local symbol.
7660 The global hash table entry for the global symbols can be found
7661 via elf_sym_hashes (input_bfd).
7663 When generating relocatable output, this function must handle
7664 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7665 going to be the section symbol corresponding to the output
7666 section, which means that the addend must be adjusted
7670 ppc_elf_relocate_section (bfd *output_bfd,
7671 struct bfd_link_info *info,
7673 asection *input_section,
7675 Elf_Internal_Rela *relocs,
7676 Elf_Internal_Sym *local_syms,
7677 asection **local_sections)
7679 Elf_Internal_Shdr *symtab_hdr;
7680 struct elf_link_hash_entry **sym_hashes;
7681 struct ppc_elf_link_hash_table *htab;
7682 Elf_Internal_Rela *rel;
7683 Elf_Internal_Rela *wrel;
7684 Elf_Internal_Rela *relend;
7685 Elf_Internal_Rela outrel;
7687 bfd_vma *local_got_offsets;
7688 bfd_boolean ret = TRUE;
7689 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
7690 bfd_boolean is_vxworks_tls;
7691 unsigned int picfixup_size = 0;
7692 struct ppc_elf_relax_info *relax_info = NULL;
7695 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7696 "%ld relocations%s",
7697 input_bfd, input_section,
7698 (long) input_section->reloc_count,
7699 (bfd_link_relocatable (info)) ? " (relocatable)" : "");
7702 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7704 /* Initialize howto table if not already done. */
7705 if (!ppc_elf_howto_table[R_PPC_ADDR32])
7706 ppc_elf_howto_init ();
7708 htab = ppc_elf_hash_table (info);
7709 local_got_offsets = elf_local_got_offsets (input_bfd);
7710 symtab_hdr = &elf_symtab_hdr (input_bfd);
7711 sym_hashes = elf_sym_hashes (input_bfd);
7712 /* We have to handle relocations in vxworks .tls_vars sections
7713 specially, because the dynamic loader is 'weird'. */
7714 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
7715 && !strcmp (input_section->output_section->name,
7717 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
7718 relax_info = elf_section_data (input_section)->sec_info;
7719 rel = wrel = relocs;
7720 relend = relocs + input_section->reloc_count;
7721 for (; rel < relend; wrel++, rel++)
7723 enum elf_ppc_reloc_type r_type;
7725 bfd_reloc_status_type r;
7726 Elf_Internal_Sym *sym;
7728 struct elf_link_hash_entry *h;
7729 const char *sym_name;
7730 reloc_howto_type *howto;
7731 unsigned long r_symndx;
7733 bfd_vma branch_bit, from;
7734 bfd_boolean unresolved_reloc;
7736 unsigned int tls_type, tls_mask, tls_gd;
7737 struct plt_entry **ifunc;
7738 struct reloc_howto_struct alt_howto;
7741 r_type = ELF32_R_TYPE (rel->r_info);
7745 unresolved_reloc = FALSE;
7747 r_symndx = ELF32_R_SYM (rel->r_info);
7749 if (r_symndx < symtab_hdr->sh_info)
7751 sym = local_syms + r_symndx;
7752 sec = local_sections[r_symndx];
7753 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
7755 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
7759 bfd_boolean ignored;
7761 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7762 r_symndx, symtab_hdr, sym_hashes,
7764 unresolved_reloc, warned, ignored);
7766 sym_name = h->root.root.string;
7769 if (sec != NULL && discarded_section (sec))
7771 /* For relocs against symbols from removed linkonce sections,
7772 or sections discarded by a linker script, we just want the
7773 section contents zeroed. Avoid any special processing. */
7775 if (r_type < R_PPC_max)
7776 howto = ppc_elf_howto_table[r_type];
7778 _bfd_clear_contents (howto, input_bfd, input_section,
7779 contents + rel->r_offset);
7780 wrel->r_offset = rel->r_offset;
7784 /* For ld -r, remove relocations in debug sections against
7785 sections defined in discarded sections. Not done for
7786 non-debug to preserve relocs in .eh_frame which the
7787 eh_frame editing code expects to be present. */
7788 if (bfd_link_relocatable (info)
7789 && (input_section->flags & SEC_DEBUGGING))
7795 if (bfd_link_relocatable (info))
7798 && r_type == R_PPC_PLTREL24
7799 && rel->r_addend != 0)
7801 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7802 addend specifies the GOT pointer offset within .got2. */
7803 rel->r_addend += got2->output_offset;
7805 if (r_type != R_PPC_RELAX_PLT
7806 && r_type != R_PPC_RELAX_PLTREL24
7807 && r_type != R_PPC_RELAX)
7811 /* TLS optimizations. Replace instruction sequences and relocs
7812 based on information we collected in tls_optimize. We edit
7813 RELOCS so that --emit-relocs will output something sensible
7814 for the final instruction stream. */
7818 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7819 else if (local_got_offsets != NULL)
7821 struct plt_entry **local_plt;
7824 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7825 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
7826 tls_mask = lgot_masks[r_symndx];
7829 /* Ensure reloc mapping code below stays sane. */
7830 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7831 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7832 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7833 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7834 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7835 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7836 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7837 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7844 case R_PPC_GOT_TPREL16:
7845 case R_PPC_GOT_TPREL16_LO:
7846 if ((tls_mask & TLS_TLS) != 0
7847 && (tls_mask & TLS_TPREL) == 0)
7851 insn = bfd_get_32 (output_bfd,
7852 contents + rel->r_offset - d_offset);
7854 insn |= 0x3c020000; /* addis 0,2,0 */
7855 bfd_put_32 (output_bfd, insn,
7856 contents + rel->r_offset - d_offset);
7857 r_type = R_PPC_TPREL16_HA;
7858 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7863 if ((tls_mask & TLS_TLS) != 0
7864 && (tls_mask & TLS_TPREL) == 0)
7868 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7869 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7872 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7873 r_type = R_PPC_TPREL16_LO;
7874 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7876 /* Was PPC_TLS which sits on insn boundary, now
7877 PPC_TPREL16_LO which is at low-order half-word. */
7878 rel->r_offset += d_offset;
7882 case R_PPC_GOT_TLSGD16_HI:
7883 case R_PPC_GOT_TLSGD16_HA:
7884 tls_gd = TLS_TPRELGD;
7885 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7889 case R_PPC_GOT_TLSLD16_HI:
7890 case R_PPC_GOT_TLSLD16_HA:
7891 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7894 if ((tls_mask & tls_gd) != 0)
7895 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7896 + R_PPC_GOT_TPREL16);
7899 rel->r_offset -= d_offset;
7900 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7901 r_type = R_PPC_NONE;
7903 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7907 case R_PPC_GOT_TLSGD16:
7908 case R_PPC_GOT_TLSGD16_LO:
7909 tls_gd = TLS_TPRELGD;
7910 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7914 case R_PPC_GOT_TLSLD16:
7915 case R_PPC_GOT_TLSLD16_LO:
7916 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7918 unsigned int insn1, insn2;
7922 offset = (bfd_vma) -1;
7923 /* If not using the newer R_PPC_TLSGD/LD to mark
7924 __tls_get_addr calls, we must trust that the call
7925 stays with its arg setup insns, ie. that the next
7926 reloc is the __tls_get_addr call associated with
7927 the current reloc. Edit both insns. */
7928 if (input_section->has_tls_get_addr_call
7930 && branch_reloc_hash_match (input_bfd, rel + 1,
7931 htab->tls_get_addr))
7932 offset = rel[1].r_offset;
7933 /* We read the low GOT_TLS insn because we need to keep
7934 the destination reg. It may be something other than
7935 the usual r3, and moved to r3 before the call by
7936 intervening code. */
7937 insn1 = bfd_get_32 (output_bfd,
7938 contents + rel->r_offset - d_offset);
7939 if ((tls_mask & tls_gd) != 0)
7942 insn1 &= (0x1f << 21) | (0x1f << 16);
7943 insn1 |= 32 << 26; /* lwz */
7944 if (offset != (bfd_vma) -1)
7946 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7947 insn2 = 0x7c631214; /* add 3,3,2 */
7948 bfd_put_32 (output_bfd, insn2, contents + offset);
7950 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7951 + R_PPC_GOT_TPREL16);
7952 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7957 insn1 &= 0x1f << 21;
7958 insn1 |= 0x3c020000; /* addis r,2,0 */
7961 /* Was an LD reloc. */
7963 r_symndx < symtab_hdr->sh_info;
7965 if (local_sections[r_symndx] == sec)
7967 if (r_symndx >= symtab_hdr->sh_info)
7968 r_symndx = STN_UNDEF;
7969 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7970 if (r_symndx != STN_UNDEF)
7971 rel->r_addend -= (local_syms[r_symndx].st_value
7972 + sec->output_offset
7973 + sec->output_section->vma);
7975 r_type = R_PPC_TPREL16_HA;
7976 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7977 if (offset != (bfd_vma) -1)
7979 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7980 rel[1].r_offset = offset + d_offset;
7981 rel[1].r_addend = rel->r_addend;
7982 insn2 = 0x38630000; /* addi 3,3,0 */
7983 bfd_put_32 (output_bfd, insn2, contents + offset);
7986 bfd_put_32 (output_bfd, insn1,
7987 contents + rel->r_offset - d_offset);
7990 /* We changed the symbol on an LD reloc. Start over
7991 in order to get h, sym, sec etc. right. */
7998 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
8001 bfd_vma offset = rel->r_offset;
8003 if ((tls_mask & TLS_TPRELGD) != 0)
8006 r_type = R_PPC_NONE;
8007 insn2 = 0x7c631214; /* add 3,3,2 */
8012 r_type = R_PPC_TPREL16_LO;
8013 rel->r_offset += d_offset;
8014 insn2 = 0x38630000; /* addi 3,3,0 */
8016 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8017 bfd_put_32 (output_bfd, insn2, contents + offset);
8018 /* Zap the reloc on the _tls_get_addr call too. */
8019 BFD_ASSERT (offset == rel[1].r_offset);
8020 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
8025 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
8030 r_symndx < symtab_hdr->sh_info;
8032 if (local_sections[r_symndx] == sec)
8034 if (r_symndx >= symtab_hdr->sh_info)
8035 r_symndx = STN_UNDEF;
8036 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
8037 if (r_symndx != STN_UNDEF)
8038 rel->r_addend -= (local_syms[r_symndx].st_value
8039 + sec->output_offset
8040 + sec->output_section->vma);
8042 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8043 rel->r_offset += d_offset;
8044 insn2 = 0x38630000; /* addi 3,3,0 */
8045 bfd_put_32 (output_bfd, insn2,
8046 contents + rel->r_offset - d_offset);
8047 /* Zap the reloc on the _tls_get_addr call too. */
8048 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
8049 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
8055 /* Handle other relocations that tweak non-addend part of insn. */
8062 /* Branch taken prediction relocations. */
8063 case R_PPC_ADDR14_BRTAKEN:
8064 case R_PPC_REL14_BRTAKEN:
8065 branch_bit = BRANCH_PREDICT_BIT;
8068 /* Branch not taken prediction relocations. */
8069 case R_PPC_ADDR14_BRNTAKEN:
8070 case R_PPC_REL14_BRNTAKEN:
8074 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
8075 insn &= ~BRANCH_PREDICT_BIT;
8078 from = (rel->r_offset
8079 + input_section->output_offset
8080 + input_section->output_section->vma);
8082 /* Invert 'y' bit if not the default. */
8083 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
8084 insn ^= BRANCH_PREDICT_BIT;
8086 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8091 if (ELIMINATE_COPY_RELOCS
8095 && ppc_elf_hash_entry (h)->has_addr16_ha
8096 && ppc_elf_hash_entry (h)->has_addr16_lo
8097 && htab->params->pic_fixup > 0)
8099 /* Convert lis;addi or lis;load/store accessing a protected
8100 variable defined in a shared library to PIC. */
8103 if (r_type == R_PPC_ADDR16_HA)
8105 insn = bfd_get_32 (output_bfd,
8106 contents + rel->r_offset - d_offset);
8107 if ((insn & (0x3f << 26)) == (15u << 26)
8108 && (insn & (0x1f << 16)) == 0 /* lis */)
8114 p = (contents + input_section->size
8115 - relax_info->workaround_size
8116 - relax_info->picfixup_size
8118 off = (p - contents) - (rel->r_offset - d_offset);
8119 if (off > 0x1fffffc || (off & 3) != 0)
8120 info->callbacks->einfo
8121 (_("%P: %H: fixup branch overflow\n"),
8122 input_bfd, input_section, rel->r_offset);
8124 bfd_put_32 (output_bfd, B | off,
8125 contents + rel->r_offset - d_offset);
8126 got_addr = (htab->got->output_section->vma
8127 + htab->got->output_offset
8128 + (h->got.offset & ~1));
8129 wrel->r_offset = (p - contents) + d_offset;
8130 wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
8131 wrel->r_addend = got_addr;
8133 insn |= ((unsigned int )(got_addr + 0x8000) >> 16) & 0xffff;
8134 bfd_put_32 (output_bfd, insn, p);
8136 /* Convert lis to lwz, loading address from GOT. */
8138 insn ^= (32u ^ 15u) << 26;
8139 insn |= (insn & (0x1f << 21)) >> 5;
8140 insn |= got_addr & 0xffff;
8141 bfd_put_32 (output_bfd, insn, p + 4);
8143 bfd_put_32 (output_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
8144 picfixup_size += 12;
8146 /* Use one of the spare relocs, so --emit-relocs
8147 output is reasonable. */
8148 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
8150 rel->r_offset = wrel[-1].r_offset + 4;
8151 rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
8152 rel->r_addend = wrel[-1].r_addend;
8154 /* Continue on as if we had a got reloc, to output
8156 r_type = R_PPC_GOT16_LO;
8159 info->callbacks->einfo
8160 (_("%P: %H: error: %s with unexpected instruction %x\n"),
8161 input_bfd, input_section, rel->r_offset,
8162 "R_PPC_ADDR16_HA", insn);
8164 else if (r_type == R_PPC_ADDR16_LO)
8166 insn = bfd_get_32 (output_bfd,
8167 contents + rel->r_offset - d_offset);
8168 if ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8169 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8170 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8171 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8172 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8173 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8174 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8175 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8176 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8177 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8178 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8179 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8180 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8181 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8182 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8184 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8185 && ((insn & 3) == 0 || (insn & 3) == 3)))
8187 /* Arrange to apply the reloc addend, if any. */
8189 unresolved_reloc = FALSE;
8190 rel->r_info = ELF32_R_INFO (0, r_type);
8193 info->callbacks->einfo
8194 (_("%P: %H: error: %s with unexpected instruction %x\n"),
8195 input_bfd, input_section, rel->r_offset,
8196 "R_PPC_ADDR16_LO", insn);
8201 if (!htab->is_vxworks)
8203 struct plt_entry *ent;
8207 if (h->type == STT_GNU_IFUNC)
8208 ifunc = &h->plt.plist;
8210 else if (local_got_offsets != NULL
8211 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
8213 struct plt_entry **local_plt;
8215 local_plt = (struct plt_entry **) (local_got_offsets
8216 + symtab_hdr->sh_info);
8217 ifunc = local_plt + r_symndx;
8222 && (!bfd_link_pic (info)
8223 || is_branch_reloc (r_type)))
8226 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
8227 addend = rel->r_addend;
8228 ent = find_plt_ent (ifunc, got2, addend);
8232 if (h == NULL && (ent->plt.offset & 1) == 0)
8234 Elf_Internal_Rela rela;
8237 rela.r_offset = (htab->iplt->output_section->vma
8238 + htab->iplt->output_offset
8240 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8241 rela.r_addend = relocation;
8242 loc = htab->reliplt->contents;
8243 loc += (htab->reliplt->reloc_count++
8244 * sizeof (Elf32_External_Rela));
8245 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
8247 ent->plt.offset |= 1;
8249 if (h == NULL && (ent->glink_offset & 1) == 0)
8251 unsigned char *p = ((unsigned char *) htab->glink->contents
8252 + ent->glink_offset);
8253 write_glink_stub (ent, htab->iplt, p, info);
8254 ent->glink_offset |= 1;
8257 unresolved_reloc = FALSE;
8258 if (htab->plt_type == PLT_NEW
8259 || !htab->elf.dynamic_sections_created
8261 || h->dynindx == -1)
8262 relocation = (htab->glink->output_section->vma
8263 + htab->glink->output_offset
8264 + (ent->glink_offset & ~1));
8266 relocation = (htab->plt->output_section->vma
8267 + htab->plt->output_offset
8272 addend = rel->r_addend;
8275 if (r_type < R_PPC_max)
8276 howto = ppc_elf_howto_table[r_type];
8280 info->callbacks->einfo
8281 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
8282 input_bfd, (int) r_type, sym_name);
8284 bfd_set_error (bfd_error_bad_value);
8292 case R_PPC_EMB_MRKREF:
8293 case R_PPC_GNU_VTINHERIT:
8294 case R_PPC_GNU_VTENTRY:
8297 /* GOT16 relocations. Like an ADDR16 using the symbol's
8298 address in the GOT as relocation value instead of the
8299 symbol's value itself. Also, create a GOT entry for the
8300 symbol and put the symbol value there. */
8301 case R_PPC_GOT_TLSGD16:
8302 case R_PPC_GOT_TLSGD16_LO:
8303 case R_PPC_GOT_TLSGD16_HI:
8304 case R_PPC_GOT_TLSGD16_HA:
8305 tls_type = TLS_TLS | TLS_GD;
8308 case R_PPC_GOT_TLSLD16:
8309 case R_PPC_GOT_TLSLD16_LO:
8310 case R_PPC_GOT_TLSLD16_HI:
8311 case R_PPC_GOT_TLSLD16_HA:
8312 tls_type = TLS_TLS | TLS_LD;
8315 case R_PPC_GOT_TPREL16:
8316 case R_PPC_GOT_TPREL16_LO:
8317 case R_PPC_GOT_TPREL16_HI:
8318 case R_PPC_GOT_TPREL16_HA:
8319 tls_type = TLS_TLS | TLS_TPREL;
8322 case R_PPC_GOT_DTPREL16:
8323 case R_PPC_GOT_DTPREL16_LO:
8324 case R_PPC_GOT_DTPREL16_HI:
8325 case R_PPC_GOT_DTPREL16_HA:
8326 tls_type = TLS_TLS | TLS_DTPREL;
8330 case R_PPC_GOT16_LO:
8331 case R_PPC_GOT16_HI:
8332 case R_PPC_GOT16_HA:
8336 /* Relocation is to the entry for this symbol in the global
8342 if (htab->got == NULL)
8346 if (tls_type == (TLS_TLS | TLS_LD)
8348 || !h->def_dynamic))
8349 offp = &htab->tlsld_got.offset;
8353 dyn = htab->elf.dynamic_sections_created;
8354 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
8355 || (bfd_link_pic (info)
8356 && SYMBOL_REFERENCES_LOCAL (info, h)))
8357 /* This is actually a static link, or it is a
8358 -Bsymbolic link and the symbol is defined
8359 locally, or the symbol was forced to be local
8360 because of a version file. */
8364 BFD_ASSERT (h->dynindx != -1);
8366 unresolved_reloc = FALSE;
8368 offp = &h->got.offset;
8372 if (local_got_offsets == NULL)
8374 offp = &local_got_offsets[r_symndx];
8377 /* The offset must always be a multiple of 4. We use the
8378 least significant bit to record whether we have already
8379 processed this entry. */
8385 unsigned int tls_m = (tls_mask
8386 & (TLS_LD | TLS_GD | TLS_DTPREL
8387 | TLS_TPREL | TLS_TPRELGD));
8389 if (offp == &htab->tlsld_got.offset)
8395 /* We might have multiple got entries for this sym.
8396 Initialize them all. */
8401 if ((tls_m & TLS_LD) != 0)
8403 tls_ty = TLS_TLS | TLS_LD;
8406 else if ((tls_m & TLS_GD) != 0)
8408 tls_ty = TLS_TLS | TLS_GD;
8411 else if ((tls_m & TLS_DTPREL) != 0)
8413 tls_ty = TLS_TLS | TLS_DTPREL;
8414 tls_m &= ~TLS_DTPREL;
8416 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
8418 tls_ty = TLS_TLS | TLS_TPREL;
8422 /* Generate relocs for the dynamic linker. */
8423 if ((bfd_link_pic (info) || indx != 0)
8424 && (offp == &htab->tlsld_got.offset
8426 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8427 || h->root.type != bfd_link_hash_undefweak))
8429 asection *rsec = htab->relgot;
8433 rsec = htab->reliplt;
8434 outrel.r_offset = (htab->got->output_section->vma
8435 + htab->got->output_offset
8437 outrel.r_addend = 0;
8438 if (tls_ty & (TLS_LD | TLS_GD))
8440 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
8441 if (tls_ty == (TLS_TLS | TLS_GD))
8443 loc = rsec->contents;
8444 loc += (rsec->reloc_count++
8445 * sizeof (Elf32_External_Rela));
8446 bfd_elf32_swap_reloca_out (output_bfd,
8448 outrel.r_offset += 4;
8450 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8453 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8454 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8455 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8456 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
8458 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
8459 else if (ifunc != NULL)
8460 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8462 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
8463 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
8465 outrel.r_addend += relocation;
8466 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
8468 if (htab->elf.tls_sec == NULL)
8469 outrel.r_addend = 0;
8471 outrel.r_addend -= htab->elf.tls_sec->vma;
8474 loc = rsec->contents;
8475 loc += (rsec->reloc_count++
8476 * sizeof (Elf32_External_Rela));
8477 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
8480 /* Init the .got section contents if we're not
8481 emitting a reloc. */
8484 bfd_vma value = relocation;
8486 if (tls_ty == (TLS_TLS | TLS_LD))
8488 else if (tls_ty != 0)
8490 if (htab->elf.tls_sec == NULL)
8494 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
8495 if (tls_ty == (TLS_TLS | TLS_TPREL))
8496 value += DTP_OFFSET - TP_OFFSET;
8499 if (tls_ty == (TLS_TLS | TLS_GD))
8501 bfd_put_32 (output_bfd, value,
8502 htab->got->contents + off + 4);
8506 bfd_put_32 (output_bfd, value,
8507 htab->got->contents + off);
8511 if (tls_ty & (TLS_LD | TLS_GD))
8520 if (off >= (bfd_vma) -2)
8523 if ((tls_type & TLS_TLS) != 0)
8525 if (tls_type != (TLS_TLS | TLS_LD))
8527 if ((tls_mask & TLS_LD) != 0
8529 || !h->def_dynamic))
8531 if (tls_type != (TLS_TLS | TLS_GD))
8533 if ((tls_mask & TLS_GD) != 0)
8535 if (tls_type != (TLS_TLS | TLS_DTPREL))
8537 if ((tls_mask & TLS_DTPREL) != 0)
8544 /* If here for a picfixup, we're done. */
8545 if (r_type != ELF32_R_TYPE (rel->r_info))
8548 relocation = (htab->got->output_section->vma
8549 + htab->got->output_offset
8551 - SYM_VAL (htab->elf.hgot));
8553 /* Addends on got relocations don't make much sense.
8554 x+off@got is actually x@got+off, and since the got is
8555 generated by a hash table traversal, the value in the
8556 got at entry m+n bears little relation to the entry m. */
8558 info->callbacks->einfo
8559 (_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
8560 input_bfd, input_section, rel->r_offset,
8566 /* Relocations that need no special processing. */
8567 case R_PPC_LOCAL24PC:
8568 /* It makes no sense to point a local relocation
8569 at a symbol not in this object. */
8570 if (unresolved_reloc)
8572 if (! (*info->callbacks->undefined_symbol) (info,
8573 h->root.root.string,
8583 case R_PPC_DTPREL16:
8584 case R_PPC_DTPREL16_LO:
8585 case R_PPC_DTPREL16_HI:
8586 case R_PPC_DTPREL16_HA:
8587 if (htab->elf.tls_sec != NULL)
8588 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8591 /* Relocations that may need to be propagated if this is a shared
8594 case R_PPC_TPREL16_LO:
8595 case R_PPC_TPREL16_HI:
8596 case R_PPC_TPREL16_HA:
8598 && h->root.type == bfd_link_hash_undefweak
8599 && h->dynindx == -1)
8601 /* Make this relocation against an undefined weak symbol
8602 resolve to zero. This is really just a tweak, since
8603 code using weak externs ought to check that they are
8604 defined before using them. */
8605 bfd_byte *p = contents + rel->r_offset - d_offset;
8606 unsigned int insn = bfd_get_32 (output_bfd, p);
8607 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8609 bfd_put_32 (output_bfd, insn, p);
8612 if (htab->elf.tls_sec != NULL)
8613 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8614 /* The TPREL16 relocs shouldn't really be used in shared
8615 libs as they will result in DT_TEXTREL being set, but
8616 support them anyway. */
8620 if (htab->elf.tls_sec != NULL)
8621 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8624 case R_PPC_DTPREL32:
8625 if (htab->elf.tls_sec != NULL)
8626 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8629 case R_PPC_DTPMOD32:
8635 case R_PPC_REL16_LO:
8636 case R_PPC_REL16_HI:
8637 case R_PPC_REL16_HA:
8638 case R_PPC_REL16DX_HA:
8642 if (h == NULL || h == htab->elf.hgot)
8648 case R_PPC_ADDR16_LO:
8649 case R_PPC_ADDR16_HI:
8650 case R_PPC_ADDR16_HA:
8655 case R_PPC_VLE_REL8:
8656 case R_PPC_VLE_REL15:
8657 case R_PPC_VLE_REL24:
8660 case R_PPC_REL14_BRTAKEN:
8661 case R_PPC_REL14_BRNTAKEN:
8662 /* If these relocations are not to a named symbol, they can be
8663 handled right here, no need to bother the dynamic linker. */
8664 if (SYMBOL_CALLS_LOCAL (info, h)
8665 || h == htab->elf.hgot)
8671 case R_PPC_ADDR14_BRTAKEN:
8672 case R_PPC_ADDR14_BRNTAKEN:
8673 if (h != NULL && !bfd_link_pic (info))
8678 if ((input_section->flags & SEC_ALLOC) == 0
8682 if ((bfd_link_pic (info)
8684 && ((h->root.type == bfd_link_hash_undefined
8685 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
8686 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
8687 || (h->root.type == bfd_link_hash_undefweak
8688 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
8689 && (must_be_dyn_reloc (info, r_type)
8690 || !SYMBOL_CALLS_LOCAL (info, h)))
8691 || (ELIMINATE_COPY_RELOCS
8692 && !bfd_link_pic (info)
8697 && !(h->protected_def
8698 && ppc_elf_hash_entry (h)->has_addr16_ha
8699 && ppc_elf_hash_entry (h)->has_addr16_lo
8700 && htab->params->pic_fixup > 0)))
8706 fprintf (stderr, "ppc_elf_relocate_section needs to "
8707 "create relocation for %s\n",
8708 (h && h->root.root.string
8709 ? h->root.root.string : "<unknown>"));
8712 /* When generating a shared object, these relocations
8713 are copied into the output file to be resolved at run
8715 sreloc = elf_section_data (input_section)->sreloc;
8717 sreloc = htab->reliplt;
8722 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8725 if (outrel.r_offset == (bfd_vma) -1
8726 || outrel.r_offset == (bfd_vma) -2)
8727 skip = (int) outrel.r_offset;
8728 outrel.r_offset += (input_section->output_section->vma
8729 + input_section->output_offset);
8732 memset (&outrel, 0, sizeof outrel);
8734 && (h->root.type == bfd_link_hash_undefined
8735 || h->root.type == bfd_link_hash_undefweak))
8736 || !SYMBOL_REFERENCES_LOCAL (info, h))
8738 BFD_ASSERT (h->dynindx != -1);
8739 unresolved_reloc = FALSE;
8740 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
8741 outrel.r_addend = rel->r_addend;
8745 outrel.r_addend = relocation + rel->r_addend;
8747 if (r_type != R_PPC_ADDR32)
8753 /* If we get here when building a static
8754 executable, then the libc startup function
8755 responsible for applying indirect function
8756 relocations is going to complain about
8758 If we get here when building a dynamic
8759 executable, it will be because we have
8760 a text relocation. The dynamic loader
8761 will set the text segment writable and
8762 non-executable to apply text relocations.
8763 So we'll segfault when trying to run the
8764 indirection function to resolve the reloc. */
8765 info->callbacks->einfo
8766 (_("%P: %H: relocation %s for indirect "
8767 "function %s unsupported\n"),
8768 input_bfd, input_section, rel->r_offset,
8773 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
8775 else if (sec == NULL || sec->owner == NULL)
8777 bfd_set_error (bfd_error_bad_value);
8784 /* We are turning this relocation into one
8785 against a section symbol. It would be
8786 proper to subtract the symbol's value,
8787 osec->vma, from the emitted reloc addend,
8788 but ld.so expects buggy relocs.
8789 FIXME: Why not always use a zero index? */
8790 osec = sec->output_section;
8791 indx = elf_section_data (osec)->dynindx;
8794 osec = htab->elf.text_index_section;
8795 indx = elf_section_data (osec)->dynindx;
8797 BFD_ASSERT (indx != 0);
8800 printf ("indx=%ld section=%s flags=%08x name=%s\n",
8801 indx, osec->name, osec->flags,
8802 h->root.root.string);
8806 outrel.r_info = ELF32_R_INFO (indx, r_type);
8808 else if (ifunc != NULL)
8809 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8811 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
8814 loc = sreloc->contents;
8815 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8816 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
8821 /* This reloc will be computed at runtime. We clear the memory
8822 so that it contains predictable value. */
8824 && ((input_section->flags & SEC_ALLOC) != 0
8825 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
8827 relocation = howto->pc_relative ? outrel.r_offset : 0;
8834 case R_PPC_RELAX_PLT:
8835 case R_PPC_RELAX_PLTREL24:
8838 struct plt_entry *ent;
8839 bfd_vma got2_addend = 0;
8841 if (r_type == R_PPC_RELAX_PLTREL24)
8843 if (bfd_link_pic (info))
8844 got2_addend = addend;
8847 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
8848 if (htab->plt_type == PLT_NEW)
8849 relocation = (htab->glink->output_section->vma
8850 + htab->glink->output_offset
8851 + ent->glink_offset);
8853 relocation = (htab->plt->output_section->vma
8854 + htab->plt->output_offset
8863 size_t insn_offset = rel->r_offset;
8866 if (bfd_link_pic (info))
8868 relocation -= (input_section->output_section->vma
8869 + input_section->output_offset
8870 + rel->r_offset - 4);
8871 stub = shared_stub_entry;
8872 bfd_put_32 (output_bfd, stub[0], contents + insn_offset - 12);
8873 bfd_put_32 (output_bfd, stub[1], contents + insn_offset - 8);
8874 bfd_put_32 (output_bfd, stub[2], contents + insn_offset - 4);
8876 size = ARRAY_SIZE (shared_stub_entry) - 3;
8881 size = ARRAY_SIZE (stub_entry);
8884 relocation += addend;
8885 if (bfd_link_relocatable (info))
8888 /* First insn is HA, second is LO. */
8890 insn |= ((relocation + 0x8000) >> 16) & 0xffff;
8891 bfd_put_32 (output_bfd, insn, contents + insn_offset);
8895 insn |= relocation & 0xffff;
8896 bfd_put_32 (output_bfd, insn, contents + insn_offset);
8904 bfd_put_32 (output_bfd, insn, contents + insn_offset);
8908 /* Rewrite the reloc and convert one of the trailing nop
8909 relocs to describe this relocation. */
8910 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
8911 /* The relocs are at the bottom 2 bytes */
8912 wrel->r_offset = rel->r_offset + d_offset;
8913 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
8914 wrel->r_addend = rel->r_addend;
8915 memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel));
8917 wrel->r_offset += 4;
8918 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
8922 /* Indirect .sdata relocation. */
8923 case R_PPC_EMB_SDAI16:
8924 BFD_ASSERT (htab->sdata[0].section != NULL);
8925 if (!is_static_defined (htab->sdata[0].sym))
8927 unresolved_reloc = TRUE;
8931 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
8932 h, relocation, rel);
8936 /* Indirect .sdata2 relocation. */
8937 case R_PPC_EMB_SDA2I16:
8938 BFD_ASSERT (htab->sdata[1].section != NULL);
8939 if (!is_static_defined (htab->sdata[1].sym))
8941 unresolved_reloc = TRUE;
8945 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
8946 h, relocation, rel);
8950 /* Handle the TOC16 reloc. We want to use the offset within the .got
8951 section, not the actual VMA. This is appropriate when generating
8952 an embedded ELF object, for which the .got section acts like the
8953 AIX .toc section. */
8954 case R_PPC_TOC16: /* phony GOT16 relocations */
8955 if (sec == NULL || sec->output_section == NULL)
8957 unresolved_reloc = TRUE;
8960 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
8962 || strcmp (bfd_get_section_name (sec->owner, sec),
8965 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
8968 case R_PPC_PLTREL24:
8969 if (h != NULL && ifunc == NULL)
8971 struct plt_entry *ent;
8973 ent = find_plt_ent (&h->plt.plist, got2,
8974 bfd_link_pic (info) ? addend : 0);
8976 || htab->plt == NULL)
8978 /* We didn't make a PLT entry for this symbol. This
8979 happens when statically linking PIC code, or when
8980 using -Bsymbolic. */
8984 /* Relocation is to the entry for this symbol in the
8985 procedure linkage table. */
8986 unresolved_reloc = FALSE;
8987 if (htab->plt_type == PLT_NEW)
8988 relocation = (htab->glink->output_section->vma
8989 + htab->glink->output_offset
8990 + ent->glink_offset);
8992 relocation = (htab->plt->output_section->vma
8993 + htab->plt->output_offset
8998 /* R_PPC_PLTREL24 is rather special. If non-zero, the
8999 addend specifies the GOT pointer offset within .got2.
9000 Don't apply it to the relocation field. */
9004 /* Relocate against _SDA_BASE_. */
9005 case R_PPC_SDAREL16:
9008 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
9011 || sec->output_section == NULL
9012 || !is_static_defined (sda))
9014 unresolved_reloc = TRUE;
9017 addend -= SYM_VAL (sda);
9019 name = bfd_get_section_name (output_bfd, sec->output_section);
9020 if (!(strcmp (name, ".sdata") == 0
9021 || strcmp (name, ".sbss") == 0))
9023 info->callbacks->einfo
9024 (_("%P: %B: the target (%s) of a %s relocation is "
9025 "in the wrong output section (%s)\n"),
9034 /* Relocate against _SDA2_BASE_. */
9035 case R_PPC_EMB_SDA2REL:
9038 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
9041 || sec->output_section == NULL
9042 || !is_static_defined (sda))
9044 unresolved_reloc = TRUE;
9047 addend -= SYM_VAL (sda);
9049 name = bfd_get_section_name (output_bfd, sec->output_section);
9050 if (!(strcmp (name, ".sdata2") == 0
9051 || strcmp (name, ".sbss2") == 0))
9053 info->callbacks->einfo
9054 (_("%P: %B: the target (%s) of a %s relocation is "
9055 "in the wrong output section (%s)\n"),
9064 case R_PPC_VLE_LO16A:
9065 relocation = relocation + addend;
9066 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9067 relocation, split16a_type);
9070 case R_PPC_VLE_LO16D:
9071 relocation = relocation + addend;
9072 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9073 relocation, split16d_type);
9076 case R_PPC_VLE_HI16A:
9077 relocation = (relocation + addend) >> 16;
9078 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9079 relocation, split16a_type);
9082 case R_PPC_VLE_HI16D:
9083 relocation = (relocation + addend) >> 16;
9084 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9085 relocation, split16d_type);
9088 case R_PPC_VLE_HA16A:
9089 relocation = (relocation + addend + 0x8000) >> 16;
9090 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9091 relocation, split16a_type);
9094 case R_PPC_VLE_HA16D:
9095 relocation = (relocation + addend + 0x8000) >> 16;
9096 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9097 relocation, split16d_type);
9100 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
9101 case R_PPC_EMB_SDA21:
9102 case R_PPC_VLE_SDA21:
9103 case R_PPC_EMB_RELSDA:
9104 case R_PPC_VLE_SDA21_LO:
9109 struct elf_link_hash_entry *sda = NULL;
9111 if (sec == NULL || sec->output_section == NULL)
9113 unresolved_reloc = TRUE;
9117 name = bfd_get_section_name (output_bfd, sec->output_section);
9118 if (strcmp (name, ".sdata") == 0
9119 || strcmp (name, ".sbss") == 0)
9122 sda = htab->sdata[0].sym;
9124 else if (strcmp (name, ".sdata2") == 0
9125 || strcmp (name, ".sbss2") == 0)
9128 sda = htab->sdata[1].sym;
9130 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
9131 || strcmp (name, ".PPC.EMB.sbss0") == 0)
9137 info->callbacks->einfo
9138 (_("%P: %B: the target (%s) of a %s relocation is "
9139 "in the wrong output section (%s)\n"),
9145 bfd_set_error (bfd_error_bad_value);
9152 if (!is_static_defined (sda))
9154 unresolved_reloc = TRUE;
9157 addend -= SYM_VAL (sda);
9160 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
9162 && (r_type == R_PPC_VLE_SDA21
9163 || r_type == R_PPC_VLE_SDA21_LO))
9165 relocation = relocation + addend;
9168 /* Force e_li insn, keeping RT from original insn. */
9172 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
9173 /* Top 4 bits of value to 17..20. */
9174 insn |= (relocation & 0xf0000) >> 5;
9175 /* Next 5 bits of the value to 11..15. */
9176 insn |= (relocation & 0xf800) << 5;
9177 /* And the final 11 bits of the value to bits 21 to 31. */
9178 insn |= relocation & 0x7ff;
9180 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
9182 if (r_type == R_PPC_VLE_SDA21
9183 && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
9187 else if (r_type == R_PPC_EMB_SDA21
9188 || r_type == R_PPC_VLE_SDA21
9189 || r_type == R_PPC_VLE_SDA21_LO)
9191 /* Fill in register field. */
9192 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
9194 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
9198 case R_PPC_VLE_SDAREL_LO16A:
9199 case R_PPC_VLE_SDAREL_LO16D:
9200 case R_PPC_VLE_SDAREL_HI16A:
9201 case R_PPC_VLE_SDAREL_HI16D:
9202 case R_PPC_VLE_SDAREL_HA16A:
9203 case R_PPC_VLE_SDAREL_HA16D:
9208 struct elf_link_hash_entry *sda = NULL;
9210 if (sec == NULL || sec->output_section == NULL)
9212 unresolved_reloc = TRUE;
9216 name = bfd_get_section_name (output_bfd, sec->output_section);
9217 if (strcmp (name, ".sdata") == 0
9218 || strcmp (name, ".sbss") == 0)
9221 sda = htab->sdata[0].sym;
9223 else if (strcmp (name, ".sdata2") == 0
9224 || strcmp (name, ".sbss2") == 0)
9227 sda = htab->sdata[1].sym;
9231 (*_bfd_error_handler)
9232 (_("%B: the target (%s) of a %s relocation is "
9233 "in the wrong output section (%s)"),
9239 bfd_set_error (bfd_error_bad_value);
9246 if (!is_static_defined (sda))
9248 unresolved_reloc = TRUE;
9253 value = (sda->root.u.def.section->output_section->vma
9254 + sda->root.u.def.section->output_offset
9257 if (r_type == R_PPC_VLE_SDAREL_LO16A)
9258 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9259 value, split16a_type);
9260 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
9261 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9262 value, split16d_type);
9263 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
9265 value = value >> 16;
9266 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9267 value, split16a_type);
9269 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
9271 value = value >> 16;
9272 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9273 value, split16d_type);
9275 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
9277 value = (value + 0x8000) >> 16;
9278 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9279 value, split16a_type);
9281 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
9283 value = (value + 0x8000) >> 16;
9284 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9285 value, split16d_type);
9290 /* Relocate against the beginning of the section. */
9292 case R_PPC_SECTOFF_LO:
9293 case R_PPC_SECTOFF_HI:
9294 case R_PPC_SECTOFF_HA:
9295 if (sec == NULL || sec->output_section == NULL)
9297 unresolved_reloc = TRUE;
9300 addend -= sec->output_section->vma;
9303 /* Negative relocations. */
9304 case R_PPC_EMB_NADDR32:
9305 case R_PPC_EMB_NADDR16:
9306 case R_PPC_EMB_NADDR16_LO:
9307 case R_PPC_EMB_NADDR16_HI:
9308 case R_PPC_EMB_NADDR16_HA:
9309 addend -= 2 * relocation;
9313 case R_PPC_GLOB_DAT:
9314 case R_PPC_JMP_SLOT:
9315 case R_PPC_RELATIVE:
9316 case R_PPC_IRELATIVE:
9318 case R_PPC_PLTREL32:
9319 case R_PPC_PLT16_LO:
9320 case R_PPC_PLT16_HI:
9321 case R_PPC_PLT16_HA:
9323 case R_PPC_EMB_RELSEC16:
9324 case R_PPC_EMB_RELST_LO:
9325 case R_PPC_EMB_RELST_HI:
9326 case R_PPC_EMB_RELST_HA:
9327 case R_PPC_EMB_BIT_FLD:
9328 info->callbacks->einfo
9329 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
9334 bfd_set_error (bfd_error_invalid_operation);
9339 /* Do any further special processing. */
9345 case R_PPC_ADDR16_HA:
9346 case R_PPC_REL16_HA:
9347 case R_PPC_REL16DX_HA:
9348 case R_PPC_SECTOFF_HA:
9349 case R_PPC_TPREL16_HA:
9350 case R_PPC_DTPREL16_HA:
9351 case R_PPC_EMB_NADDR16_HA:
9352 case R_PPC_EMB_RELST_HA:
9353 /* It's just possible that this symbol is a weak symbol
9354 that's not actually defined anywhere. In that case,
9355 'sec' would be NULL, and we should leave the symbol
9356 alone (it will be set to zero elsewhere in the link). */
9361 case R_PPC_PLT16_HA:
9362 case R_PPC_GOT16_HA:
9363 case R_PPC_GOT_TLSGD16_HA:
9364 case R_PPC_GOT_TLSLD16_HA:
9365 case R_PPC_GOT_TPREL16_HA:
9366 case R_PPC_GOT_DTPREL16_HA:
9367 /* Add 0x10000 if sign bit in 0:15 is set.
9368 Bits 0:15 are not used. */
9373 case R_PPC_ADDR16_LO:
9375 case R_PPC_GOT16_LO:
9376 case R_PPC_SDAREL16:
9378 case R_PPC_SECTOFF_LO:
9379 case R_PPC_DTPREL16:
9380 case R_PPC_DTPREL16_LO:
9382 case R_PPC_TPREL16_LO:
9383 case R_PPC_GOT_TLSGD16:
9384 case R_PPC_GOT_TLSGD16_LO:
9385 case R_PPC_GOT_TLSLD16:
9386 case R_PPC_GOT_TLSLD16_LO:
9387 case R_PPC_GOT_DTPREL16:
9388 case R_PPC_GOT_DTPREL16_LO:
9389 case R_PPC_GOT_TPREL16:
9390 case R_PPC_GOT_TPREL16_LO:
9392 /* The 32-bit ABI lacks proper relocations to deal with
9393 certain 64-bit instructions. Prevent damage to bits
9394 that make up part of the insn opcode. */
9395 unsigned int insn, mask, lobit;
9397 insn = bfd_get_32 (output_bfd,
9398 contents + rel->r_offset - d_offset);
9400 if (is_insn_ds_form (insn))
9402 else if (is_insn_dq_form (insn))
9406 relocation += addend;
9407 addend = insn & mask;
9408 lobit = mask & relocation;
9411 relocation ^= lobit;
9412 info->callbacks->einfo
9413 (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
9414 input_bfd, input_section, rel->r_offset,
9415 howto->name, sym_name, mask + 1);
9416 bfd_set_error (bfd_error_bad_value);
9424 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
9425 "offset = %ld, addend = %ld\n",
9430 (long) rel->r_offset,
9434 if (unresolved_reloc
9435 && !((input_section->flags & SEC_DEBUGGING) != 0
9437 && _bfd_elf_section_offset (output_bfd, info, input_section,
9438 rel->r_offset) != (bfd_vma) -1)
9440 info->callbacks->einfo
9441 (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
9442 input_bfd, input_section, rel->r_offset,
9448 /* 16-bit fields in insns mostly have signed values, but a
9449 few insns have 16-bit unsigned values. Really, we should
9450 have different reloc types. */
9451 if (howto->complain_on_overflow != complain_overflow_dont
9452 && howto->dst_mask == 0xffff
9453 && (input_section->flags & SEC_CODE) != 0)
9455 enum complain_overflow complain = complain_overflow_signed;
9457 if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
9461 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
9462 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
9463 complain = complain_overflow_bitfield;
9464 else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
9465 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
9466 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
9467 complain = complain_overflow_unsigned;
9469 if (howto->complain_on_overflow != complain)
9472 alt_howto.complain_on_overflow = complain;
9477 if (r_type == R_PPC_REL16DX_HA)
9479 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
9480 if (rel->r_offset + 4 > input_section->size)
9481 r = bfd_reloc_outofrange;
9486 relocation += addend;
9487 relocation -= (rel->r_offset
9488 + input_section->output_offset
9489 + input_section->output_section->vma);
9491 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
9493 insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
9494 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
9499 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
9500 rel->r_offset, relocation, addend);
9502 if (r != bfd_reloc_ok)
9504 if (r == bfd_reloc_overflow)
9507 /* On code like "if (foo) foo();" don't report overflow
9508 on a branch to zero when foo is undefined. */
9511 && (h->root.type == bfd_link_hash_undefweak
9512 || h->root.type == bfd_link_hash_undefined)
9513 && is_branch_reloc (r_type)))
9515 if (!((*info->callbacks->reloc_overflow)
9516 (info, (h ? &h->root : NULL), sym_name,
9517 howto->name, rel->r_addend,
9518 input_bfd, input_section, rel->r_offset)))
9524 info->callbacks->einfo
9525 (_("%P: %H: %s reloc against `%s': error %d\n"),
9526 input_bfd, input_section, rel->r_offset,
9527 howto->name, sym_name, (int) r);
9538 Elf_Internal_Shdr *rel_hdr;
9539 size_t deleted = rel - wrel;
9541 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
9542 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9543 if (rel_hdr->sh_size == 0)
9545 /* It is too late to remove an empty reloc section. Leave
9547 ??? What is wrong with an empty section??? */
9548 rel_hdr->sh_size = rel_hdr->sh_entsize;
9553 rel_hdr = _bfd_elf_single_rel_hdr (input_section);
9554 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9555 input_section->reloc_count -= deleted;
9559 fprintf (stderr, "\n");
9562 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
9563 && input_section->size != input_section->rawsize
9564 && (strcmp (input_section->output_section->name, ".init") == 0
9565 || strcmp (input_section->output_section->name, ".fini") == 0))
9567 /* Branch around the trampolines. */
9568 unsigned int insn = B + input_section->size - input_section->rawsize;
9569 bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
9572 if (htab->params->ppc476_workaround
9573 && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
9574 && (!bfd_link_relocatable (info)
9575 || (input_section->output_section->alignment_power
9576 >= htab->params->pagesize_p2)))
9578 bfd_vma start_addr, end_addr, addr;
9579 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
9581 if (relax_info->workaround_size != 0)
9587 bfd_put_32 (input_bfd, BA, fill);
9588 p = contents + input_section->size - relax_info->workaround_size;
9589 n = relax_info->workaround_size >> 2;
9592 memcpy (p, fill, 4);
9597 /* The idea is: Replace the last instruction on a page with a
9598 branch to a patch area. Put the insn there followed by a
9599 branch back to the next page. Complicated a little by
9600 needing to handle moved conditional branches, and by not
9601 wanting to touch data-in-text. */
9603 start_addr = (input_section->output_section->vma
9604 + input_section->output_offset);
9605 end_addr = (start_addr + input_section->size
9606 - relax_info->workaround_size);
9607 for (addr = ((start_addr & -pagesize) + pagesize - 4);
9611 bfd_vma offset = addr - start_addr;
9612 Elf_Internal_Rela *lo, *hi;
9613 bfd_boolean is_data;
9614 bfd_vma patch_off, patch_addr;
9617 /* Do we have a data reloc at this offset? If so, leave
9625 rel = lo + (hi - lo) / 2;
9626 if (rel->r_offset < offset)
9628 else if (rel->r_offset > offset + 3)
9632 switch (ELF32_R_TYPE (rel->r_info))
9649 /* Some instructions can be left alone too. Unconditional
9650 branches, except for bcctr with BO=0x14 (bctr, bctrl),
9651 avoid the icache failure.
9653 The problem occurs due to prefetch across a page boundary
9654 where stale instructions can be fetched from the next
9655 page, and the mechanism for flushing these bad
9656 instructions fails under certain circumstances. The
9657 unconditional branches:
9658 1) Branch: b, bl, ba, bla,
9659 2) Branch Conditional: bc, bca, bcl, bcla,
9660 3) Branch Conditional to Link Register: bclr, bclrl,
9661 where (2) and (3) have BO=0x14 making them unconditional,
9662 prevent the bad prefetch because the prefetch itself is
9663 affected by these instructions. This happens even if the
9664 instruction is not executed.
9669 . addi 9,9,new_page@l
9676 The bctr is not predicted taken due to ctr not being
9677 ready, so prefetch continues on past the bctr into the
9678 new page which might have stale instructions. If they
9679 fail to be flushed, then they will be executed after the
9680 bctr executes. Either of the following modifications
9681 prevent the bad prefetch from happening in the first
9684 . lis 9,new_page@ha lis 9,new_page@ha
9685 . addi 9,9,new_page@l addi 9,9,new_page@l
9688 . nop b somewhere_else
9689 . b somewhere_else nop
9690 . new_page: new_page:
9692 insn = bfd_get_32 (input_bfd, contents + offset);
9693 if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */
9694 || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/
9695 && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */
9696 || ((insn & (0x3f << 26)) == (19u << 26)
9697 && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */
9698 && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */
9701 patch_addr = (start_addr + input_section->size
9702 - relax_info->workaround_size);
9703 patch_addr = (patch_addr + 15) & -16;
9704 patch_off = patch_addr - start_addr;
9705 bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
9708 && rel->r_offset >= offset
9709 && rel->r_offset < offset + 4)
9713 /* If the insn we are patching had a reloc, adjust the
9714 reloc r_offset so that the reloc applies to the moved
9715 location. This matters for -r and --emit-relocs. */
9716 if (rel + 1 != relend)
9718 Elf_Internal_Rela tmp = *rel;
9720 /* Keep the relocs sorted by r_offset. */
9721 memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
9724 relend[-1].r_offset += patch_off - offset;
9726 /* Adjust REL16 addends too. */
9727 switch (ELF32_R_TYPE (relend[-1].r_info))
9730 case R_PPC_REL16_LO:
9731 case R_PPC_REL16_HI:
9732 case R_PPC_REL16_HA:
9733 relend[-1].r_addend += patch_off - offset;
9739 /* If we are building a PIE or shared library with
9740 non-PIC objects, perhaps we had a dynamic reloc too?
9741 If so, the dynamic reloc must move with the insn. */
9742 sreloc = elf_section_data (input_section)->sreloc;
9745 Elf32_External_Rela *slo, *shi, *srelend;
9748 slo = (Elf32_External_Rela *) sreloc->contents;
9749 shi = srelend = slo + sreloc->reloc_count;
9750 soffset = (offset + input_section->output_section->vma
9751 + input_section->output_offset);
9754 Elf32_External_Rela *srel = slo + (shi - slo) / 2;
9755 bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
9757 if (outrel.r_offset < soffset)
9759 else if (outrel.r_offset > soffset + 3)
9763 if (srel + 1 != srelend)
9765 memmove (srel, srel + 1,
9766 (srelend - (srel + 1)) * sizeof (*srel));
9769 outrel.r_offset += patch_off - offset;
9770 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
9780 if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
9781 && (insn & 2) == 0 /* relative */)
9783 bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
9785 delta += offset - patch_off;
9786 if (bfd_link_relocatable (info) && rel != NULL)
9788 if (!bfd_link_relocatable (info) && rel != NULL)
9790 enum elf_ppc_reloc_type r_type;
9792 r_type = ELF32_R_TYPE (relend[-1].r_info);
9793 if (r_type == R_PPC_REL14_BRTAKEN)
9794 insn |= BRANCH_PREDICT_BIT;
9795 else if (r_type == R_PPC_REL14_BRNTAKEN)
9796 insn &= ~BRANCH_PREDICT_BIT;
9798 BFD_ASSERT (r_type == R_PPC_REL14);
9800 if ((r_type == R_PPC_REL14_BRTAKEN
9801 || r_type == R_PPC_REL14_BRNTAKEN)
9802 && delta + 0x8000 < 0x10000
9803 && (bfd_signed_vma) delta < 0)
9804 insn ^= BRANCH_PREDICT_BIT;
9806 if (delta + 0x8000 < 0x10000)
9808 bfd_put_32 (input_bfd,
9809 (insn & ~0xfffc) | (delta & 0xfffc),
9810 contents + patch_off);
9812 bfd_put_32 (input_bfd,
9813 B | ((offset + 4 - patch_off) & 0x3fffffc),
9814 contents + patch_off);
9821 unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
9823 relend[-1].r_offset += 8;
9824 relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
9826 bfd_put_32 (input_bfd,
9827 (insn & ~0xfffc) | 8,
9828 contents + patch_off);
9830 bfd_put_32 (input_bfd,
9831 B | ((offset + 4 - patch_off) & 0x3fffffc),
9832 contents + patch_off);
9834 bfd_put_32 (input_bfd,
9835 B | ((delta - 8) & 0x3fffffc),
9836 contents + patch_off);
9842 bfd_put_32 (input_bfd, insn, contents + patch_off);
9844 bfd_put_32 (input_bfd,
9845 B | ((offset + 4 - patch_off) & 0x3fffffc),
9846 contents + patch_off);
9849 BFD_ASSERT (patch_off <= input_section->size);
9850 relax_info->workaround_size = input_section->size - patch_off;
9857 /* Finish up dynamic symbol handling. We set the contents of various
9858 dynamic sections here. */
9861 ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
9862 struct bfd_link_info *info,
9863 struct elf_link_hash_entry *h,
9864 Elf_Internal_Sym *sym)
9866 struct ppc_elf_link_hash_table *htab;
9867 struct plt_entry *ent;
9868 bfd_boolean doneone;
9871 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
9872 h->root.root.string);
9875 htab = ppc_elf_hash_table (info);
9876 BFD_ASSERT (htab->elf.dynobj != NULL);
9879 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
9880 if (ent->plt.offset != (bfd_vma) -1)
9884 Elf_Internal_Rela rela;
9886 bfd_vma reloc_index;
9888 if (htab->plt_type == PLT_NEW
9889 || !htab->elf.dynamic_sections_created
9890 || h->dynindx == -1)
9891 reloc_index = ent->plt.offset / 4;
9894 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
9895 / htab->plt_slot_size);
9896 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
9897 && htab->plt_type == PLT_OLD)
9898 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
9901 /* This symbol has an entry in the procedure linkage table.
9903 if (htab->plt_type == PLT_VXWORKS
9904 && htab->elf.dynamic_sections_created
9905 && h->dynindx != -1)
9908 const bfd_vma *plt_entry;
9910 /* The first three entries in .got.plt are reserved. */
9911 got_offset = (reloc_index + 3) * 4;
9913 /* Use the right PLT. */
9914 plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry
9915 : ppc_elf_vxworks_plt_entry;
9917 /* Fill in the .plt on VxWorks. */
9918 if (bfd_link_pic (info))
9920 bfd_put_32 (output_bfd,
9921 plt_entry[0] | PPC_HA (got_offset),
9922 htab->plt->contents + ent->plt.offset + 0);
9923 bfd_put_32 (output_bfd,
9924 plt_entry[1] | PPC_LO (got_offset),
9925 htab->plt->contents + ent->plt.offset + 4);
9929 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9931 bfd_put_32 (output_bfd,
9932 plt_entry[0] | PPC_HA (got_loc),
9933 htab->plt->contents + ent->plt.offset + 0);
9934 bfd_put_32 (output_bfd,
9935 plt_entry[1] | PPC_LO (got_loc),
9936 htab->plt->contents + ent->plt.offset + 4);
9939 bfd_put_32 (output_bfd, plt_entry[2],
9940 htab->plt->contents + ent->plt.offset + 8);
9941 bfd_put_32 (output_bfd, plt_entry[3],
9942 htab->plt->contents + ent->plt.offset + 12);
9944 /* This instruction is an immediate load. The value loaded is
9945 the byte offset of the R_PPC_JMP_SLOT relocation from the
9946 start of the .rela.plt section. The value is stored in the
9947 low-order 16 bits of the load instruction. */
9948 /* NOTE: It appears that this is now an index rather than a
9949 prescaled offset. */
9950 bfd_put_32 (output_bfd,
9951 plt_entry[4] | reloc_index,
9952 htab->plt->contents + ent->plt.offset + 16);
9953 /* This instruction is a PC-relative branch whose target is
9954 the start of the PLT section. The address of this branch
9955 instruction is 20 bytes beyond the start of this PLT entry.
9956 The address is encoded in bits 6-29, inclusive. The value
9957 stored is right-shifted by two bits, permitting a 26-bit
9959 bfd_put_32 (output_bfd,
9961 | (-(ent->plt.offset + 20) & 0x03fffffc)),
9962 htab->plt->contents + ent->plt.offset + 20);
9963 bfd_put_32 (output_bfd, plt_entry[6],
9964 htab->plt->contents + ent->plt.offset + 24);
9965 bfd_put_32 (output_bfd, plt_entry[7],
9966 htab->plt->contents + ent->plt.offset + 28);
9968 /* Fill in the GOT entry corresponding to this PLT slot with
9969 the address immediately after the "bctr" instruction
9970 in this PLT entry. */
9971 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
9972 + htab->plt->output_offset
9973 + ent->plt.offset + 16),
9974 htab->sgotplt->contents + got_offset);
9976 if (!bfd_link_pic (info))
9978 /* Fill in a couple of entries in .rela.plt.unloaded. */
9979 loc = htab->srelplt2->contents
9980 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
9981 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
9982 * sizeof (Elf32_External_Rela));
9984 /* Provide the @ha relocation for the first instruction. */
9985 rela.r_offset = (htab->plt->output_section->vma
9986 + htab->plt->output_offset
9987 + ent->plt.offset + 2);
9988 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9990 rela.r_addend = got_offset;
9991 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9992 loc += sizeof (Elf32_External_Rela);
9994 /* Provide the @l relocation for the second instruction. */
9995 rela.r_offset = (htab->plt->output_section->vma
9996 + htab->plt->output_offset
9997 + ent->plt.offset + 6);
9998 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
10000 rela.r_addend = got_offset;
10001 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10002 loc += sizeof (Elf32_External_Rela);
10004 /* Provide a relocation for the GOT entry corresponding to this
10005 PLT slot. Point it at the middle of the .plt entry. */
10006 rela.r_offset = (htab->sgotplt->output_section->vma
10007 + htab->sgotplt->output_offset
10009 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
10011 rela.r_addend = ent->plt.offset + 16;
10012 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10015 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
10016 In particular, the offset for the relocation is not the
10017 address of the PLT entry for this function, as specified
10018 by the ABI. Instead, the offset is set to the address of
10019 the GOT slot for this function. See EABI 4.4.4.1. */
10020 rela.r_offset = (htab->sgotplt->output_section->vma
10021 + htab->sgotplt->output_offset
10027 asection *splt = htab->plt;
10028 if (!htab->elf.dynamic_sections_created
10029 || h->dynindx == -1)
10032 rela.r_offset = (splt->output_section->vma
10033 + splt->output_offset
10034 + ent->plt.offset);
10035 if (htab->plt_type == PLT_OLD
10036 || !htab->elf.dynamic_sections_created
10037 || h->dynindx == -1)
10039 /* We don't need to fill in the .plt. The ppc dynamic
10040 linker will fill it in. */
10044 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
10045 + htab->glink->output_section->vma
10046 + htab->glink->output_offset);
10047 bfd_put_32 (output_bfd, val,
10048 splt->contents + ent->plt.offset);
10052 /* Fill in the entry in the .rela.plt section. */
10054 if (!htab->elf.dynamic_sections_created
10055 || h->dynindx == -1)
10057 BFD_ASSERT (h->type == STT_GNU_IFUNC
10059 && (h->root.type == bfd_link_hash_defined
10060 || h->root.type == bfd_link_hash_defweak));
10061 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
10062 rela.r_addend = SYM_VAL (h);
10065 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
10067 if (!htab->elf.dynamic_sections_created
10068 || h->dynindx == -1)
10069 loc = (htab->reliplt->contents
10070 + (htab->reliplt->reloc_count++
10071 * sizeof (Elf32_External_Rela)));
10073 loc = (htab->relplt->contents
10074 + reloc_index * sizeof (Elf32_External_Rela));
10075 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10077 if (!h->def_regular)
10079 /* Mark the symbol as undefined, rather than as
10080 defined in the .plt section. Leave the value if
10081 there were any relocations where pointer equality
10082 matters (this is a clue for the dynamic linker, to
10083 make function pointer comparisons work between an
10084 application and shared library), otherwise set it
10086 sym->st_shndx = SHN_UNDEF;
10087 if (!h->pointer_equality_needed)
10089 else if (!h->ref_regular_nonweak)
10091 /* This breaks function pointer comparisons, but
10092 that is better than breaking tests for a NULL
10093 function pointer. */
10097 else if (h->type == STT_GNU_IFUNC
10098 && !bfd_link_pic (info))
10100 /* Set the value of ifunc symbols in a non-pie
10101 executable to the glink entry. This is to avoid
10102 text relocations. We can't do this for ifunc in
10103 allocate_dynrelocs, as we do for normal dynamic
10104 function symbols with plt entries, because we need
10105 to keep the original value around for the ifunc
10107 sym->st_shndx = (_bfd_elf_section_from_bfd_section
10108 (output_bfd, htab->glink->output_section));
10109 sym->st_value = (ent->glink_offset
10110 + htab->glink->output_offset
10111 + htab->glink->output_section->vma);
10116 if (htab->plt_type == PLT_NEW
10117 || !htab->elf.dynamic_sections_created
10118 || h->dynindx == -1)
10121 asection *splt = htab->plt;
10122 if (!htab->elf.dynamic_sections_created
10123 || h->dynindx == -1)
10126 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
10128 if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt)
10130 bfd_put_32 (output_bfd, LWZ_11_3, p);
10132 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
10134 bfd_put_32 (output_bfd, MR_0_3, p);
10136 bfd_put_32 (output_bfd, CMPWI_11_0, p);
10138 bfd_put_32 (output_bfd, ADD_3_12_2, p);
10140 bfd_put_32 (output_bfd, BEQLR, p);
10142 bfd_put_32 (output_bfd, MR_3_0, p);
10144 bfd_put_32 (output_bfd, NOP, p);
10148 write_glink_stub (ent, splt, p, info);
10150 if (!bfd_link_pic (info))
10151 /* We only need one non-PIC glink stub. */
10161 Elf_Internal_Rela rela;
10164 /* This symbols needs a copy reloc. Set it up. */
10167 fprintf (stderr, ", copy");
10170 BFD_ASSERT (h->dynindx != -1);
10172 if (ppc_elf_hash_entry (h)->has_sda_refs)
10176 BFD_ASSERT (s != NULL);
10178 rela.r_offset = SYM_VAL (h);
10179 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
10181 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
10182 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10186 fprintf (stderr, "\n");
10192 static enum elf_reloc_type_class
10193 ppc_elf_reloc_type_class (const struct bfd_link_info *info,
10194 const asection *rel_sec,
10195 const Elf_Internal_Rela *rela)
10197 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10199 if (rel_sec == htab->reliplt)
10200 return reloc_class_ifunc;
10202 switch (ELF32_R_TYPE (rela->r_info))
10204 case R_PPC_RELATIVE:
10205 return reloc_class_relative;
10206 case R_PPC_JMP_SLOT:
10207 return reloc_class_plt;
10209 return reloc_class_copy;
10211 return reloc_class_normal;
10215 /* Finish up the dynamic sections. */
10218 ppc_elf_finish_dynamic_sections (bfd *output_bfd,
10219 struct bfd_link_info *info)
10223 struct ppc_elf_link_hash_table *htab;
10226 bfd_boolean ret = TRUE;
10229 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
10232 htab = ppc_elf_hash_table (info);
10233 dynobj = elf_hash_table (info)->dynobj;
10234 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
10235 if (htab->is_vxworks)
10236 splt = bfd_get_linker_section (dynobj, ".plt");
10241 if (htab->elf.hgot != NULL)
10242 got = SYM_VAL (htab->elf.hgot);
10244 if (htab->elf.dynamic_sections_created)
10246 Elf32_External_Dyn *dyncon, *dynconend;
10248 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
10250 dyncon = (Elf32_External_Dyn *) sdyn->contents;
10251 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
10252 for (; dyncon < dynconend; dyncon++)
10254 Elf_Internal_Dyn dyn;
10257 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
10262 if (htab->is_vxworks)
10266 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10270 dyn.d_un.d_val = htab->relplt->size;
10275 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10279 dyn.d_un.d_ptr = got;
10283 if (htab->is_vxworks)
10286 dyn.d_un.d_ptr -= htab->relplt->size;
10292 if (htab->is_vxworks
10293 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
10298 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
10302 if (htab->got != NULL)
10304 if (htab->elf.hgot->root.u.def.section == htab->got
10305 || htab->elf.hgot->root.u.def.section == htab->sgotplt)
10307 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
10309 p += htab->elf.hgot->root.u.def.value;
10310 if (htab->plt_type == PLT_OLD)
10312 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
10313 so that a function can easily find the address of
10314 _GLOBAL_OFFSET_TABLE_. */
10315 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
10316 < htab->elf.hgot->root.u.def.section->size);
10317 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
10322 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
10323 BFD_ASSERT (htab->elf.hgot->root.u.def.value
10324 < htab->elf.hgot->root.u.def.section->size);
10325 bfd_put_32 (output_bfd, val, p);
10330 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
10331 htab->elf.hgot->root.root.string,
10332 (htab->sgotplt != NULL
10333 ? htab->sgotplt->name : htab->got->name));
10334 bfd_set_error (bfd_error_bad_value);
10338 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
10341 /* Fill in the first entry in the VxWorks procedure linkage table. */
10342 if (splt && splt->size > 0)
10344 /* Use the right PLT. */
10345 const bfd_vma *plt_entry = (bfd_link_pic (info)
10346 ? ppc_elf_vxworks_pic_plt0_entry
10347 : ppc_elf_vxworks_plt0_entry);
10349 if (!bfd_link_pic (info))
10351 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
10353 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
10354 splt->contents + 0);
10355 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
10356 splt->contents + 4);
10360 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
10361 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
10363 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
10364 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
10365 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
10366 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
10367 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
10368 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
10370 if (! bfd_link_pic (info))
10372 Elf_Internal_Rela rela;
10375 loc = htab->srelplt2->contents;
10377 /* Output the @ha relocation for the first instruction. */
10378 rela.r_offset = (htab->plt->output_section->vma
10379 + htab->plt->output_offset
10381 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
10383 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10384 loc += sizeof (Elf32_External_Rela);
10386 /* Output the @l relocation for the second instruction. */
10387 rela.r_offset = (htab->plt->output_section->vma
10388 + htab->plt->output_offset
10390 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
10392 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10393 loc += sizeof (Elf32_External_Rela);
10395 /* Fix up the remaining relocations. They may have the wrong
10396 symbol index for _G_O_T_ or _P_L_T_ depending on the order
10397 in which symbols were output. */
10398 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
10400 Elf_Internal_Rela rel;
10402 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
10403 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
10404 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10405 loc += sizeof (Elf32_External_Rela);
10407 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
10408 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
10409 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10410 loc += sizeof (Elf32_External_Rela);
10412 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
10413 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
10414 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10415 loc += sizeof (Elf32_External_Rela);
10420 if (htab->glink != NULL
10421 && htab->glink->contents != NULL
10422 && htab->elf.dynamic_sections_created)
10425 unsigned char *endp;
10430 * PIC glink code is the following:
10432 * # ith PLT code stub.
10433 * addis 11,30,(plt+(i-1)*4-got)@ha
10434 * lwz 11,(plt+(i-1)*4-got)@l(11)
10438 * # A table of branches, one for each plt entry.
10439 * # The idea is that the plt call stub loads ctr and r11 with these
10440 * # addresses, so (r11 - res_0) gives the plt index * 4.
10441 * res_0: b PLTresolve
10442 * res_1: b PLTresolve
10444 * # Some number of entries towards the end can be nops
10450 * addis 11,11,(1f-res_0)@ha
10453 * 1: addi 11,11,(1b-res_0)@l
10456 * sub 11,11,12 # r11 = index * 4
10457 * addis 12,12,(got+4-1b)@ha
10458 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
10459 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
10462 * add 11,0,11 # r11 = index * 12 = reloc offset.
10465 static const unsigned int pic_plt_resolve[] =
10486 * Non-PIC glink code is a little simpler.
10488 * # ith PLT code stub.
10489 * lis 11,(plt+(i-1)*4)@ha
10490 * lwz 11,(plt+(i-1)*4)@l(11)
10494 * The branch table is the same, then comes
10497 * lis 12,(got+4)@ha
10498 * addis 11,11,(-res_0)@ha
10499 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
10500 * addi 11,11,(-res_0)@l # r11 = index * 4
10503 * lwz 12,(got+8)@l(12) # got[2] contains the map address
10504 * add 11,0,11 # r11 = index * 12 = reloc offset.
10507 static const unsigned int plt_resolve[] =
10527 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
10529 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
10532 /* Build the branch table, one for each plt entry (less one),
10533 and perhaps some padding. */
10534 p = htab->glink->contents;
10535 p += htab->glink_pltresolve;
10536 endp = htab->glink->contents;
10537 endp += htab->glink->size - GLINK_PLTRESOLVE;
10538 while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
10540 bfd_put_32 (output_bfd, B + endp - p, p);
10545 bfd_put_32 (output_bfd, NOP, p);
10549 res0 = (htab->glink_pltresolve
10550 + htab->glink->output_section->vma
10551 + htab->glink->output_offset);
10553 if (htab->params->ppc476_workaround)
10555 /* Ensure that a call stub at the end of a page doesn't
10556 result in prefetch over the end of the page into the
10557 glink branch table. */
10558 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
10560 bfd_vma glink_start = (htab->glink->output_section->vma
10561 + htab->glink->output_offset);
10563 for (page_addr = res0 & -pagesize;
10564 page_addr > glink_start;
10565 page_addr -= pagesize)
10567 /* We have a plt call stub that may need fixing. */
10571 loc = htab->glink->contents + page_addr - 4 - glink_start;
10572 insn = bfd_get_32 (output_bfd, loc);
10575 /* By alignment, we know that there must be at least
10576 one other call stub before this one. */
10577 insn = bfd_get_32 (output_bfd, loc - 16);
10579 bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
10581 bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
10586 /* Last comes the PLTresolve stub. */
10587 if (bfd_link_pic (info))
10591 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
10593 unsigned int insn = pic_plt_resolve[i];
10595 if (htab->params->ppc476_workaround && insn == NOP)
10597 bfd_put_32 (output_bfd, insn, p);
10600 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
10602 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
10603 + htab->glink->output_section->vma
10604 + htab->glink->output_offset);
10606 bfd_put_32 (output_bfd,
10607 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
10608 bfd_put_32 (output_bfd,
10609 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
10610 bfd_put_32 (output_bfd,
10611 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
10612 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
10614 bfd_put_32 (output_bfd,
10615 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10616 bfd_put_32 (output_bfd,
10617 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
10621 bfd_put_32 (output_bfd,
10622 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10623 bfd_put_32 (output_bfd,
10624 LWZ_12_12 + 4, p + 9*4);
10629 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
10631 unsigned int insn = plt_resolve[i];
10633 if (htab->params->ppc476_workaround && insn == NOP)
10635 bfd_put_32 (output_bfd, insn, p);
10638 p -= 4 * ARRAY_SIZE (plt_resolve);
10640 bfd_put_32 (output_bfd,
10641 LIS_12 + PPC_HA (got + 4), p + 0*4);
10642 bfd_put_32 (output_bfd,
10643 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
10644 bfd_put_32 (output_bfd,
10645 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
10646 if (PPC_HA (got + 4) == PPC_HA (got + 8))
10648 bfd_put_32 (output_bfd,
10649 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
10650 bfd_put_32 (output_bfd,
10651 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
10655 bfd_put_32 (output_bfd,
10656 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
10657 bfd_put_32 (output_bfd,
10658 LWZ_12_12 + 4, p + 6*4);
10663 if (htab->glink_eh_frame != NULL
10664 && htab->glink_eh_frame->contents != NULL)
10666 unsigned char *p = htab->glink_eh_frame->contents;
10669 p += sizeof (glink_eh_frame_cie);
10674 /* Offset to .glink. */
10675 val = (htab->glink->output_section->vma
10676 + htab->glink->output_offset);
10677 val -= (htab->glink_eh_frame->output_section->vma
10678 + htab->glink_eh_frame->output_offset);
10679 val -= p - htab->glink_eh_frame->contents;
10680 bfd_put_32 (htab->elf.dynobj, val, p);
10682 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
10683 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
10684 htab->glink_eh_frame,
10685 htab->glink_eh_frame->contents))
10692 #define TARGET_LITTLE_SYM powerpc_elf32_le_vec
10693 #define TARGET_LITTLE_NAME "elf32-powerpcle"
10694 #define TARGET_BIG_SYM powerpc_elf32_vec
10695 #define TARGET_BIG_NAME "elf32-powerpc"
10696 #define ELF_ARCH bfd_arch_powerpc
10697 #define ELF_TARGET_ID PPC32_ELF_DATA
10698 #define ELF_MACHINE_CODE EM_PPC
10699 #ifdef __QNXTARGET__
10700 #define ELF_MAXPAGESIZE 0x1000
10701 #define ELF_COMMONPAGESIZE 0x1000
10703 #define ELF_MAXPAGESIZE 0x10000
10704 #define ELF_COMMONPAGESIZE 0x10000
10706 #define ELF_MINPAGESIZE 0x1000
10707 #define elf_info_to_howto ppc_elf_info_to_howto
10709 #ifdef EM_CYGNUS_POWERPC
10710 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
10714 #define ELF_MACHINE_ALT2 EM_PPC_OLD
10717 #define elf_backend_plt_not_loaded 1
10718 #define elf_backend_can_gc_sections 1
10719 #define elf_backend_can_refcount 1
10720 #define elf_backend_rela_normal 1
10721 #define elf_backend_caches_rawsize 1
10723 #define bfd_elf32_mkobject ppc_elf_mkobject
10724 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
10725 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
10726 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
10727 #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
10728 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
10729 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
10730 #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
10732 #define elf_backend_object_p ppc_elf_object_p
10733 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
10734 #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
10735 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
10736 #define elf_backend_relocate_section ppc_elf_relocate_section
10737 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
10738 #define elf_backend_check_relocs ppc_elf_check_relocs
10739 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
10740 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
10741 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
10742 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
10743 #define elf_backend_hash_symbol ppc_elf_hash_symbol
10744 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
10745 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
10746 #define elf_backend_fake_sections ppc_elf_fake_sections
10747 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
10748 #define elf_backend_modify_segment_map ppc_elf_modify_segment_map
10749 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
10750 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
10751 #define elf_backend_write_core_note ppc_elf_write_core_note
10752 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
10753 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
10754 #define elf_backend_final_write_processing ppc_elf_final_write_processing
10755 #define elf_backend_write_section ppc_elf_write_section
10756 #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
10757 #define elf_backend_plt_sym_val ppc_elf_plt_sym_val
10758 #define elf_backend_action_discarded ppc_elf_action_discarded
10759 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
10760 #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
10761 #define elf_backend_section_processing ppc_elf_section_processing
10763 #include "elf32-target.h"
10765 /* FreeBSD Target */
10767 #undef TARGET_LITTLE_SYM
10768 #undef TARGET_LITTLE_NAME
10770 #undef TARGET_BIG_SYM
10771 #define TARGET_BIG_SYM powerpc_elf32_fbsd_vec
10772 #undef TARGET_BIG_NAME
10773 #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
10776 #define ELF_OSABI ELFOSABI_FREEBSD
10779 #define elf32_bed elf32_powerpc_fbsd_bed
10781 #include "elf32-target.h"
10783 /* VxWorks Target */
10785 #undef TARGET_LITTLE_SYM
10786 #undef TARGET_LITTLE_NAME
10788 #undef TARGET_BIG_SYM
10789 #define TARGET_BIG_SYM powerpc_elf32_vxworks_vec
10790 #undef TARGET_BIG_NAME
10791 #define TARGET_BIG_NAME "elf32-powerpc-vxworks"
10795 /* VxWorks uses the elf default section flags for .plt. */
10796 static const struct bfd_elf_special_section *
10797 ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
10799 if (sec->name == NULL)
10802 if (strcmp (sec->name, ".plt") == 0)
10803 return _bfd_elf_get_sec_type_attr (abfd, sec);
10805 return ppc_elf_get_sec_type_attr (abfd, sec);
10808 /* Like ppc_elf_link_hash_table_create, but overrides
10809 appropriately for VxWorks. */
10810 static struct bfd_link_hash_table *
10811 ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
10813 struct bfd_link_hash_table *ret;
10815 ret = ppc_elf_link_hash_table_create (abfd);
10818 struct ppc_elf_link_hash_table *htab
10819 = (struct ppc_elf_link_hash_table *)ret;
10820 htab->is_vxworks = 1;
10821 htab->plt_type = PLT_VXWORKS;
10822 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
10823 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
10824 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
10829 /* Tweak magic VxWorks symbols as they are loaded. */
10831 ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
10832 struct bfd_link_info *info,
10833 Elf_Internal_Sym *sym,
10834 const char **namep ATTRIBUTE_UNUSED,
10835 flagword *flagsp ATTRIBUTE_UNUSED,
10839 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
10843 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
10847 ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
10849 ppc_elf_final_write_processing(abfd, linker);
10850 elf_vxworks_final_write_processing(abfd, linker);
10853 /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
10855 #undef elf_backend_want_plt_sym
10856 #define elf_backend_want_plt_sym 1
10857 #undef elf_backend_want_got_plt
10858 #define elf_backend_want_got_plt 1
10859 #undef elf_backend_got_symbol_offset
10860 #define elf_backend_got_symbol_offset 0
10861 #undef elf_backend_plt_not_loaded
10862 #define elf_backend_plt_not_loaded 0
10863 #undef elf_backend_plt_readonly
10864 #define elf_backend_plt_readonly 1
10865 #undef elf_backend_got_header_size
10866 #define elf_backend_got_header_size 12
10868 #undef bfd_elf32_get_synthetic_symtab
10870 #undef bfd_elf32_bfd_link_hash_table_create
10871 #define bfd_elf32_bfd_link_hash_table_create \
10872 ppc_elf_vxworks_link_hash_table_create
10873 #undef elf_backend_add_symbol_hook
10874 #define elf_backend_add_symbol_hook \
10875 ppc_elf_vxworks_add_symbol_hook
10876 #undef elf_backend_link_output_symbol_hook
10877 #define elf_backend_link_output_symbol_hook \
10878 elf_vxworks_link_output_symbol_hook
10879 #undef elf_backend_final_write_processing
10880 #define elf_backend_final_write_processing \
10881 ppc_elf_vxworks_final_write_processing
10882 #undef elf_backend_get_sec_type_attr
10883 #define elf_backend_get_sec_type_attr \
10884 ppc_elf_vxworks_get_sec_type_attr
10885 #undef elf_backend_emit_relocs
10886 #define elf_backend_emit_relocs \
10887 elf_vxworks_emit_relocs
10890 #define elf32_bed ppc_elf_vxworks_bed
10891 #undef elf_backend_post_process_headers
10893 #include "elf32-target.h"