1 /* PowerPC-specific support for 32-bit ELF
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
4 Written by Ian Lance Taylor, Cygnus Support.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the
20 Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
21 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 /* RELA relocations are used here. */
40 static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
41 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
42 static bfd_reloc_status_type ppc_elf_unhandled_reloc
43 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
45 /* Branch prediction bit for branch taken relocs. */
46 #define BRANCH_PREDICT_BIT 0x200000
47 /* Mask to set RA in memory instructions. */
48 #define RA_REGISTER_MASK 0x001f0000
49 /* Value to shift register by to insert RA. */
50 #define RA_REGISTER_SHIFT 16
52 /* The name of the dynamic interpreter. This is put in the .interp
54 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
56 /* For old-style PLT. */
57 /* The number of single-slot PLT entries (the rest use two slots). */
58 #define PLT_NUM_SINGLE_ENTRIES 8192
60 /* For new-style .glink and .plt. */
61 #define GLINK_PLTRESOLVE 16*4
62 #define GLINK_ENTRY_SIZE 4*4
64 /* VxWorks uses its own plt layout, filled in by the static linker. */
66 /* The standard VxWorks PLT entry. */
67 #define VXWORKS_PLT_ENTRY_SIZE 32
68 static const bfd_vma ppc_elf_vxworks_plt_entry
69 [VXWORKS_PLT_ENTRY_SIZE / 4] =
71 0x3d800000, /* lis r12,0 */
72 0x818c0000, /* lwz r12,0(r12) */
73 0x7d8903a6, /* mtctr r12 */
74 0x4e800420, /* bctr */
75 0x39600000, /* li r11,0 */
76 0x48000000, /* b 14 <.PLT0resolve+0x4> */
80 static const bfd_vma ppc_elf_vxworks_pic_plt_entry
81 [VXWORKS_PLT_ENTRY_SIZE / 4] =
83 0x3d9e0000, /* addis r12,r30,0 */
84 0x818c0000, /* lwz r12,0(r12) */
85 0x7d8903a6, /* mtctr r12 */
86 0x4e800420, /* bctr */
87 0x39600000, /* li r11,0 */
88 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
93 /* The initial VxWorks PLT entry. */
94 #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
95 static const bfd_vma ppc_elf_vxworks_plt0_entry
96 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
98 0x3d800000, /* lis r12,0 */
99 0x398c0000, /* addi r12,r12,0 */
100 0x800c0008, /* lwz r0,8(r12) */
101 0x7c0903a6, /* mtctr r0 */
102 0x818c0004, /* lwz r12,4(r12) */
103 0x4e800420, /* bctr */
104 0x60000000, /* nop */
105 0x60000000, /* nop */
107 static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
108 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
110 0x819e0008, /* lwz r12,8(r30) */
111 0x7d8903a6, /* mtctr r12 */
112 0x819e0004, /* lwz r12,4(r30) */
113 0x4e800420, /* bctr */
114 0x60000000, /* nop */
115 0x60000000, /* nop */
116 0x60000000, /* nop */
117 0x60000000, /* nop */
120 /* For executables, we have some additional relocations in
121 .rela.plt.unloaded, for the kernel loader. */
123 /* The number of non-JMP_SLOT relocations per PLT0 slot. */
124 #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
125 /* The number of relocations in the PLTResolve slot. */
126 #define VXWORKS_PLTRESOLVE_RELOCS 2
127 /* The number of relocations in the PLTResolve slot when when creating
129 #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
131 /* Some instructions. */
132 #define ADDIS_11_11 0x3d6b0000
133 #define ADDIS_11_30 0x3d7e0000
134 #define ADDIS_12_12 0x3d8c0000
135 #define ADDI_11_11 0x396b0000
136 #define ADD_0_11_11 0x7c0b5a14
137 #define ADD_11_0_11 0x7d605a14
139 #define BCL_20_31 0x429f0005
140 #define BCTR 0x4e800420
141 #define LIS_11 0x3d600000
142 #define LIS_12 0x3d800000
143 #define LWZU_0_12 0x840c0000
144 #define LWZ_0_12 0x800c0000
145 #define LWZ_11_11 0x816b0000
146 #define LWZ_11_30 0x817e0000
147 #define LWZ_12_12 0x818c0000
148 #define MFLR_0 0x7c0802a6
149 #define MFLR_12 0x7d8802a6
150 #define MTCTR_0 0x7c0903a6
151 #define MTCTR_11 0x7d6903a6
152 #define MTLR_0 0x7c0803a6
153 #define NOP 0x60000000
154 #define SUB_11_11_12 0x7d6c5850
156 /* Offset of tp and dtp pointers from start of TLS block. */
157 #define TP_OFFSET 0x7000
158 #define DTP_OFFSET 0x8000
160 static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
162 static reloc_howto_type ppc_elf_howto_raw[] = {
163 /* This reloc does nothing. */
164 HOWTO (R_PPC_NONE, /* type */
166 2, /* size (0 = byte, 1 = short, 2 = long) */
168 FALSE, /* pc_relative */
170 complain_overflow_bitfield, /* complain_on_overflow */
171 bfd_elf_generic_reloc, /* special_function */
172 "R_PPC_NONE", /* name */
173 FALSE, /* partial_inplace */
176 FALSE), /* pcrel_offset */
178 /* A standard 32 bit relocation. */
179 HOWTO (R_PPC_ADDR32, /* type */
181 2, /* size (0 = byte, 1 = short, 2 = long) */
183 FALSE, /* pc_relative */
185 complain_overflow_bitfield, /* complain_on_overflow */
186 bfd_elf_generic_reloc, /* special_function */
187 "R_PPC_ADDR32", /* name */
188 FALSE, /* partial_inplace */
190 0xffffffff, /* dst_mask */
191 FALSE), /* pcrel_offset */
193 /* An absolute 26 bit branch; the lower two bits must be zero.
194 FIXME: we don't check that, we just clear them. */
195 HOWTO (R_PPC_ADDR24, /* type */
197 2, /* size (0 = byte, 1 = short, 2 = long) */
199 FALSE, /* pc_relative */
201 complain_overflow_bitfield, /* complain_on_overflow */
202 bfd_elf_generic_reloc, /* special_function */
203 "R_PPC_ADDR24", /* name */
204 FALSE, /* partial_inplace */
206 0x3fffffc, /* dst_mask */
207 FALSE), /* pcrel_offset */
209 /* A standard 16 bit relocation. */
210 HOWTO (R_PPC_ADDR16, /* type */
212 1, /* size (0 = byte, 1 = short, 2 = long) */
214 FALSE, /* pc_relative */
216 complain_overflow_bitfield, /* complain_on_overflow */
217 bfd_elf_generic_reloc, /* special_function */
218 "R_PPC_ADDR16", /* name */
219 FALSE, /* partial_inplace */
221 0xffff, /* dst_mask */
222 FALSE), /* pcrel_offset */
224 /* A 16 bit relocation without overflow. */
225 HOWTO (R_PPC_ADDR16_LO, /* type */
227 1, /* size (0 = byte, 1 = short, 2 = long) */
229 FALSE, /* pc_relative */
231 complain_overflow_dont,/* complain_on_overflow */
232 bfd_elf_generic_reloc, /* special_function */
233 "R_PPC_ADDR16_LO", /* name */
234 FALSE, /* partial_inplace */
236 0xffff, /* dst_mask */
237 FALSE), /* pcrel_offset */
239 /* The high order 16 bits of an address. */
240 HOWTO (R_PPC_ADDR16_HI, /* type */
242 1, /* size (0 = byte, 1 = short, 2 = long) */
244 FALSE, /* pc_relative */
246 complain_overflow_dont, /* complain_on_overflow */
247 bfd_elf_generic_reloc, /* special_function */
248 "R_PPC_ADDR16_HI", /* name */
249 FALSE, /* partial_inplace */
251 0xffff, /* dst_mask */
252 FALSE), /* pcrel_offset */
254 /* The high order 16 bits of an address, plus 1 if the contents of
255 the low 16 bits, treated as a signed number, is negative. */
256 HOWTO (R_PPC_ADDR16_HA, /* type */
258 1, /* size (0 = byte, 1 = short, 2 = long) */
260 FALSE, /* pc_relative */
262 complain_overflow_dont, /* complain_on_overflow */
263 ppc_elf_addr16_ha_reloc, /* special_function */
264 "R_PPC_ADDR16_HA", /* name */
265 FALSE, /* partial_inplace */
267 0xffff, /* dst_mask */
268 FALSE), /* pcrel_offset */
270 /* An absolute 16 bit branch; the lower two bits must be zero.
271 FIXME: we don't check that, we just clear them. */
272 HOWTO (R_PPC_ADDR14, /* type */
274 2, /* size (0 = byte, 1 = short, 2 = long) */
276 FALSE, /* pc_relative */
278 complain_overflow_bitfield, /* complain_on_overflow */
279 bfd_elf_generic_reloc, /* special_function */
280 "R_PPC_ADDR14", /* name */
281 FALSE, /* partial_inplace */
283 0xfffc, /* dst_mask */
284 FALSE), /* pcrel_offset */
286 /* An absolute 16 bit branch, for which bit 10 should be set to
287 indicate that the branch is expected to be taken. The lower two
288 bits must be zero. */
289 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
291 2, /* size (0 = byte, 1 = short, 2 = long) */
293 FALSE, /* pc_relative */
295 complain_overflow_bitfield, /* complain_on_overflow */
296 bfd_elf_generic_reloc, /* special_function */
297 "R_PPC_ADDR14_BRTAKEN",/* name */
298 FALSE, /* partial_inplace */
300 0xfffc, /* dst_mask */
301 FALSE), /* pcrel_offset */
303 /* An absolute 16 bit branch, for which bit 10 should be set to
304 indicate that the branch is not expected to be taken. The lower
305 two bits must be zero. */
306 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
308 2, /* size (0 = byte, 1 = short, 2 = long) */
310 FALSE, /* pc_relative */
312 complain_overflow_bitfield, /* complain_on_overflow */
313 bfd_elf_generic_reloc, /* special_function */
314 "R_PPC_ADDR14_BRNTAKEN",/* name */
315 FALSE, /* partial_inplace */
317 0xfffc, /* dst_mask */
318 FALSE), /* pcrel_offset */
320 /* A relative 26 bit branch; the lower two bits must be zero. */
321 HOWTO (R_PPC_REL24, /* type */
323 2, /* size (0 = byte, 1 = short, 2 = long) */
325 TRUE, /* pc_relative */
327 complain_overflow_signed, /* complain_on_overflow */
328 bfd_elf_generic_reloc, /* special_function */
329 "R_PPC_REL24", /* name */
330 FALSE, /* partial_inplace */
332 0x3fffffc, /* dst_mask */
333 TRUE), /* pcrel_offset */
335 /* A relative 16 bit branch; the lower two bits must be zero. */
336 HOWTO (R_PPC_REL14, /* type */
338 2, /* size (0 = byte, 1 = short, 2 = long) */
340 TRUE, /* pc_relative */
342 complain_overflow_signed, /* complain_on_overflow */
343 bfd_elf_generic_reloc, /* special_function */
344 "R_PPC_REL14", /* name */
345 FALSE, /* partial_inplace */
347 0xfffc, /* dst_mask */
348 TRUE), /* pcrel_offset */
350 /* A relative 16 bit branch. Bit 10 should be set to indicate that
351 the branch is expected to be taken. The lower two bits must be
353 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
355 2, /* size (0 = byte, 1 = short, 2 = long) */
357 TRUE, /* pc_relative */
359 complain_overflow_signed, /* complain_on_overflow */
360 bfd_elf_generic_reloc, /* special_function */
361 "R_PPC_REL14_BRTAKEN", /* name */
362 FALSE, /* partial_inplace */
364 0xfffc, /* dst_mask */
365 TRUE), /* pcrel_offset */
367 /* A relative 16 bit branch. Bit 10 should be set to indicate that
368 the branch is not expected to be taken. The lower two bits must
370 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
372 2, /* size (0 = byte, 1 = short, 2 = long) */
374 TRUE, /* pc_relative */
376 complain_overflow_signed, /* complain_on_overflow */
377 bfd_elf_generic_reloc, /* special_function */
378 "R_PPC_REL14_BRNTAKEN",/* name */
379 FALSE, /* partial_inplace */
381 0xfffc, /* dst_mask */
382 TRUE), /* pcrel_offset */
384 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
386 HOWTO (R_PPC_GOT16, /* type */
388 1, /* size (0 = byte, 1 = short, 2 = long) */
390 FALSE, /* pc_relative */
392 complain_overflow_signed, /* complain_on_overflow */
393 bfd_elf_generic_reloc, /* special_function */
394 "R_PPC_GOT16", /* name */
395 FALSE, /* partial_inplace */
397 0xffff, /* dst_mask */
398 FALSE), /* pcrel_offset */
400 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
402 HOWTO (R_PPC_GOT16_LO, /* type */
404 1, /* size (0 = byte, 1 = short, 2 = long) */
406 FALSE, /* pc_relative */
408 complain_overflow_dont, /* complain_on_overflow */
409 bfd_elf_generic_reloc, /* special_function */
410 "R_PPC_GOT16_LO", /* name */
411 FALSE, /* partial_inplace */
413 0xffff, /* dst_mask */
414 FALSE), /* pcrel_offset */
416 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
418 HOWTO (R_PPC_GOT16_HI, /* type */
420 1, /* size (0 = byte, 1 = short, 2 = long) */
422 FALSE, /* pc_relative */
424 complain_overflow_bitfield, /* complain_on_overflow */
425 bfd_elf_generic_reloc, /* special_function */
426 "R_PPC_GOT16_HI", /* name */
427 FALSE, /* partial_inplace */
429 0xffff, /* dst_mask */
430 FALSE), /* pcrel_offset */
432 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
434 HOWTO (R_PPC_GOT16_HA, /* type */
436 1, /* size (0 = byte, 1 = short, 2 = long) */
438 FALSE, /* pc_relative */
440 complain_overflow_bitfield, /* complain_on_overflow */
441 ppc_elf_addr16_ha_reloc, /* special_function */
442 "R_PPC_GOT16_HA", /* name */
443 FALSE, /* partial_inplace */
445 0xffff, /* dst_mask */
446 FALSE), /* pcrel_offset */
448 /* Like R_PPC_REL24, but referring to the procedure linkage table
449 entry for the symbol. */
450 HOWTO (R_PPC_PLTREL24, /* type */
452 2, /* size (0 = byte, 1 = short, 2 = long) */
454 TRUE, /* pc_relative */
456 complain_overflow_signed, /* complain_on_overflow */
457 bfd_elf_generic_reloc, /* special_function */
458 "R_PPC_PLTREL24", /* name */
459 FALSE, /* partial_inplace */
461 0x3fffffc, /* dst_mask */
462 TRUE), /* pcrel_offset */
464 /* This is used only by the dynamic linker. The symbol should exist
465 both in the object being run and in some shared library. The
466 dynamic linker copies the data addressed by the symbol from the
467 shared library into the object, because the object being
468 run has to have the data at some particular address. */
469 HOWTO (R_PPC_COPY, /* type */
471 2, /* size (0 = byte, 1 = short, 2 = long) */
473 FALSE, /* pc_relative */
475 complain_overflow_bitfield, /* complain_on_overflow */
476 bfd_elf_generic_reloc, /* special_function */
477 "R_PPC_COPY", /* name */
478 FALSE, /* partial_inplace */
481 FALSE), /* pcrel_offset */
483 /* Like R_PPC_ADDR32, but used when setting global offset table
485 HOWTO (R_PPC_GLOB_DAT, /* type */
487 2, /* size (0 = byte, 1 = short, 2 = long) */
489 FALSE, /* pc_relative */
491 complain_overflow_bitfield, /* complain_on_overflow */
492 bfd_elf_generic_reloc, /* special_function */
493 "R_PPC_GLOB_DAT", /* name */
494 FALSE, /* partial_inplace */
496 0xffffffff, /* dst_mask */
497 FALSE), /* pcrel_offset */
499 /* Marks a procedure linkage table entry for a symbol. */
500 HOWTO (R_PPC_JMP_SLOT, /* type */
502 2, /* size (0 = byte, 1 = short, 2 = long) */
504 FALSE, /* pc_relative */
506 complain_overflow_bitfield, /* complain_on_overflow */
507 bfd_elf_generic_reloc, /* special_function */
508 "R_PPC_JMP_SLOT", /* name */
509 FALSE, /* partial_inplace */
512 FALSE), /* pcrel_offset */
514 /* Used only by the dynamic linker. When the object is run, this
515 longword is set to the load address of the object, plus the
517 HOWTO (R_PPC_RELATIVE, /* type */
519 2, /* size (0 = byte, 1 = short, 2 = long) */
521 FALSE, /* pc_relative */
523 complain_overflow_bitfield, /* complain_on_overflow */
524 bfd_elf_generic_reloc, /* special_function */
525 "R_PPC_RELATIVE", /* name */
526 FALSE, /* partial_inplace */
528 0xffffffff, /* dst_mask */
529 FALSE), /* pcrel_offset */
531 /* Like R_PPC_REL24, but uses the value of the symbol within the
532 object rather than the final value. Normally used for
533 _GLOBAL_OFFSET_TABLE_. */
534 HOWTO (R_PPC_LOCAL24PC, /* type */
536 2, /* size (0 = byte, 1 = short, 2 = long) */
538 TRUE, /* pc_relative */
540 complain_overflow_signed, /* complain_on_overflow */
541 bfd_elf_generic_reloc, /* special_function */
542 "R_PPC_LOCAL24PC", /* name */
543 FALSE, /* partial_inplace */
545 0x3fffffc, /* dst_mask */
546 TRUE), /* pcrel_offset */
548 /* Like R_PPC_ADDR32, but may be unaligned. */
549 HOWTO (R_PPC_UADDR32, /* type */
551 2, /* size (0 = byte, 1 = short, 2 = long) */
553 FALSE, /* pc_relative */
555 complain_overflow_bitfield, /* complain_on_overflow */
556 bfd_elf_generic_reloc, /* special_function */
557 "R_PPC_UADDR32", /* name */
558 FALSE, /* partial_inplace */
560 0xffffffff, /* dst_mask */
561 FALSE), /* pcrel_offset */
563 /* Like R_PPC_ADDR16, but may be unaligned. */
564 HOWTO (R_PPC_UADDR16, /* type */
566 1, /* size (0 = byte, 1 = short, 2 = long) */
568 FALSE, /* pc_relative */
570 complain_overflow_bitfield, /* complain_on_overflow */
571 bfd_elf_generic_reloc, /* special_function */
572 "R_PPC_UADDR16", /* name */
573 FALSE, /* partial_inplace */
575 0xffff, /* dst_mask */
576 FALSE), /* pcrel_offset */
578 /* 32-bit PC relative */
579 HOWTO (R_PPC_REL32, /* type */
581 2, /* size (0 = byte, 1 = short, 2 = long) */
583 TRUE, /* pc_relative */
585 complain_overflow_bitfield, /* complain_on_overflow */
586 bfd_elf_generic_reloc, /* special_function */
587 "R_PPC_REL32", /* name */
588 FALSE, /* partial_inplace */
590 0xffffffff, /* dst_mask */
591 TRUE), /* pcrel_offset */
593 /* 32-bit relocation to the symbol's procedure linkage table.
594 FIXME: not supported. */
595 HOWTO (R_PPC_PLT32, /* type */
597 2, /* size (0 = byte, 1 = short, 2 = long) */
599 FALSE, /* pc_relative */
601 complain_overflow_bitfield, /* complain_on_overflow */
602 bfd_elf_generic_reloc, /* special_function */
603 "R_PPC_PLT32", /* name */
604 FALSE, /* partial_inplace */
607 FALSE), /* pcrel_offset */
609 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
610 FIXME: not supported. */
611 HOWTO (R_PPC_PLTREL32, /* type */
613 2, /* size (0 = byte, 1 = short, 2 = long) */
615 TRUE, /* pc_relative */
617 complain_overflow_bitfield, /* complain_on_overflow */
618 bfd_elf_generic_reloc, /* special_function */
619 "R_PPC_PLTREL32", /* name */
620 FALSE, /* partial_inplace */
623 TRUE), /* pcrel_offset */
625 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
627 HOWTO (R_PPC_PLT16_LO, /* type */
629 1, /* size (0 = byte, 1 = short, 2 = long) */
631 FALSE, /* pc_relative */
633 complain_overflow_dont, /* complain_on_overflow */
634 bfd_elf_generic_reloc, /* special_function */
635 "R_PPC_PLT16_LO", /* name */
636 FALSE, /* partial_inplace */
638 0xffff, /* dst_mask */
639 FALSE), /* pcrel_offset */
641 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
643 HOWTO (R_PPC_PLT16_HI, /* type */
645 1, /* size (0 = byte, 1 = short, 2 = long) */
647 FALSE, /* pc_relative */
649 complain_overflow_bitfield, /* complain_on_overflow */
650 bfd_elf_generic_reloc, /* special_function */
651 "R_PPC_PLT16_HI", /* name */
652 FALSE, /* partial_inplace */
654 0xffff, /* dst_mask */
655 FALSE), /* pcrel_offset */
657 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
659 HOWTO (R_PPC_PLT16_HA, /* type */
661 1, /* size (0 = byte, 1 = short, 2 = long) */
663 FALSE, /* pc_relative */
665 complain_overflow_bitfield, /* complain_on_overflow */
666 ppc_elf_addr16_ha_reloc, /* special_function */
667 "R_PPC_PLT16_HA", /* name */
668 FALSE, /* partial_inplace */
670 0xffff, /* dst_mask */
671 FALSE), /* pcrel_offset */
673 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
675 HOWTO (R_PPC_SDAREL16, /* type */
677 1, /* size (0 = byte, 1 = short, 2 = long) */
679 FALSE, /* pc_relative */
681 complain_overflow_signed, /* complain_on_overflow */
682 bfd_elf_generic_reloc, /* special_function */
683 "R_PPC_SDAREL16", /* name */
684 FALSE, /* partial_inplace */
686 0xffff, /* dst_mask */
687 FALSE), /* pcrel_offset */
689 /* 16-bit section relative relocation. */
690 HOWTO (R_PPC_SECTOFF, /* type */
692 1, /* size (0 = byte, 1 = short, 2 = long) */
694 FALSE, /* pc_relative */
696 complain_overflow_bitfield, /* complain_on_overflow */
697 bfd_elf_generic_reloc, /* special_function */
698 "R_PPC_SECTOFF", /* name */
699 FALSE, /* partial_inplace */
701 0xffff, /* dst_mask */
702 FALSE), /* pcrel_offset */
704 /* 16-bit lower half section relative relocation. */
705 HOWTO (R_PPC_SECTOFF_LO, /* type */
707 1, /* size (0 = byte, 1 = short, 2 = long) */
709 FALSE, /* pc_relative */
711 complain_overflow_dont, /* complain_on_overflow */
712 bfd_elf_generic_reloc, /* special_function */
713 "R_PPC_SECTOFF_LO", /* name */
714 FALSE, /* partial_inplace */
716 0xffff, /* dst_mask */
717 FALSE), /* pcrel_offset */
719 /* 16-bit upper half section relative relocation. */
720 HOWTO (R_PPC_SECTOFF_HI, /* type */
722 1, /* size (0 = byte, 1 = short, 2 = long) */
724 FALSE, /* pc_relative */
726 complain_overflow_bitfield, /* complain_on_overflow */
727 bfd_elf_generic_reloc, /* special_function */
728 "R_PPC_SECTOFF_HI", /* name */
729 FALSE, /* partial_inplace */
731 0xffff, /* dst_mask */
732 FALSE), /* pcrel_offset */
734 /* 16-bit upper half adjusted section relative relocation. */
735 HOWTO (R_PPC_SECTOFF_HA, /* type */
737 1, /* size (0 = byte, 1 = short, 2 = long) */
739 FALSE, /* pc_relative */
741 complain_overflow_bitfield, /* complain_on_overflow */
742 ppc_elf_addr16_ha_reloc, /* special_function */
743 "R_PPC_SECTOFF_HA", /* name */
744 FALSE, /* partial_inplace */
746 0xffff, /* dst_mask */
747 FALSE), /* pcrel_offset */
749 /* Marker reloc for TLS. */
752 2, /* size (0 = byte, 1 = short, 2 = long) */
754 FALSE, /* pc_relative */
756 complain_overflow_dont, /* complain_on_overflow */
757 bfd_elf_generic_reloc, /* special_function */
758 "R_PPC_TLS", /* name */
759 FALSE, /* partial_inplace */
762 FALSE), /* pcrel_offset */
764 /* Computes the load module index of the load module that contains the
765 definition of its TLS sym. */
766 HOWTO (R_PPC_DTPMOD32,
768 2, /* size (0 = byte, 1 = short, 2 = long) */
770 FALSE, /* pc_relative */
772 complain_overflow_dont, /* complain_on_overflow */
773 ppc_elf_unhandled_reloc, /* special_function */
774 "R_PPC_DTPMOD32", /* name */
775 FALSE, /* partial_inplace */
777 0xffffffff, /* dst_mask */
778 FALSE), /* pcrel_offset */
780 /* Computes a dtv-relative displacement, the difference between the value
781 of sym+add and the base address of the thread-local storage block that
782 contains the definition of sym, minus 0x8000. */
783 HOWTO (R_PPC_DTPREL32,
785 2, /* size (0 = byte, 1 = short, 2 = long) */
787 FALSE, /* pc_relative */
789 complain_overflow_dont, /* complain_on_overflow */
790 ppc_elf_unhandled_reloc, /* special_function */
791 "R_PPC_DTPREL32", /* name */
792 FALSE, /* partial_inplace */
794 0xffffffff, /* dst_mask */
795 FALSE), /* pcrel_offset */
797 /* A 16 bit dtprel reloc. */
798 HOWTO (R_PPC_DTPREL16,
800 1, /* size (0 = byte, 1 = short, 2 = long) */
802 FALSE, /* pc_relative */
804 complain_overflow_signed, /* complain_on_overflow */
805 ppc_elf_unhandled_reloc, /* special_function */
806 "R_PPC_DTPREL16", /* name */
807 FALSE, /* partial_inplace */
809 0xffff, /* dst_mask */
810 FALSE), /* pcrel_offset */
812 /* Like DTPREL16, but no overflow. */
813 HOWTO (R_PPC_DTPREL16_LO,
815 1, /* size (0 = byte, 1 = short, 2 = long) */
817 FALSE, /* pc_relative */
819 complain_overflow_dont, /* complain_on_overflow */
820 ppc_elf_unhandled_reloc, /* special_function */
821 "R_PPC_DTPREL16_LO", /* name */
822 FALSE, /* partial_inplace */
824 0xffff, /* dst_mask */
825 FALSE), /* pcrel_offset */
827 /* Like DTPREL16_LO, but next higher group of 16 bits. */
828 HOWTO (R_PPC_DTPREL16_HI,
830 1, /* size (0 = byte, 1 = short, 2 = long) */
832 FALSE, /* pc_relative */
834 complain_overflow_dont, /* complain_on_overflow */
835 ppc_elf_unhandled_reloc, /* special_function */
836 "R_PPC_DTPREL16_HI", /* name */
837 FALSE, /* partial_inplace */
839 0xffff, /* dst_mask */
840 FALSE), /* pcrel_offset */
842 /* Like DTPREL16_HI, but adjust for low 16 bits. */
843 HOWTO (R_PPC_DTPREL16_HA,
845 1, /* size (0 = byte, 1 = short, 2 = long) */
847 FALSE, /* pc_relative */
849 complain_overflow_dont, /* complain_on_overflow */
850 ppc_elf_unhandled_reloc, /* special_function */
851 "R_PPC_DTPREL16_HA", /* name */
852 FALSE, /* partial_inplace */
854 0xffff, /* dst_mask */
855 FALSE), /* pcrel_offset */
857 /* Computes a tp-relative displacement, the difference between the value of
858 sym+add and the value of the thread pointer (r13). */
859 HOWTO (R_PPC_TPREL32,
861 2, /* size (0 = byte, 1 = short, 2 = long) */
863 FALSE, /* pc_relative */
865 complain_overflow_dont, /* complain_on_overflow */
866 ppc_elf_unhandled_reloc, /* special_function */
867 "R_PPC_TPREL32", /* name */
868 FALSE, /* partial_inplace */
870 0xffffffff, /* dst_mask */
871 FALSE), /* pcrel_offset */
873 /* A 16 bit tprel reloc. */
874 HOWTO (R_PPC_TPREL16,
876 1, /* size (0 = byte, 1 = short, 2 = long) */
878 FALSE, /* pc_relative */
880 complain_overflow_signed, /* complain_on_overflow */
881 ppc_elf_unhandled_reloc, /* special_function */
882 "R_PPC_TPREL16", /* name */
883 FALSE, /* partial_inplace */
885 0xffff, /* dst_mask */
886 FALSE), /* pcrel_offset */
888 /* Like TPREL16, but no overflow. */
889 HOWTO (R_PPC_TPREL16_LO,
891 1, /* size (0 = byte, 1 = short, 2 = long) */
893 FALSE, /* pc_relative */
895 complain_overflow_dont, /* complain_on_overflow */
896 ppc_elf_unhandled_reloc, /* special_function */
897 "R_PPC_TPREL16_LO", /* name */
898 FALSE, /* partial_inplace */
900 0xffff, /* dst_mask */
901 FALSE), /* pcrel_offset */
903 /* Like TPREL16_LO, but next higher group of 16 bits. */
904 HOWTO (R_PPC_TPREL16_HI,
906 1, /* size (0 = byte, 1 = short, 2 = long) */
908 FALSE, /* pc_relative */
910 complain_overflow_dont, /* complain_on_overflow */
911 ppc_elf_unhandled_reloc, /* special_function */
912 "R_PPC_TPREL16_HI", /* name */
913 FALSE, /* partial_inplace */
915 0xffff, /* dst_mask */
916 FALSE), /* pcrel_offset */
918 /* Like TPREL16_HI, but adjust for low 16 bits. */
919 HOWTO (R_PPC_TPREL16_HA,
921 1, /* size (0 = byte, 1 = short, 2 = long) */
923 FALSE, /* pc_relative */
925 complain_overflow_dont, /* complain_on_overflow */
926 ppc_elf_unhandled_reloc, /* special_function */
927 "R_PPC_TPREL16_HA", /* name */
928 FALSE, /* partial_inplace */
930 0xffff, /* dst_mask */
931 FALSE), /* pcrel_offset */
933 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
934 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
935 to the first entry. */
936 HOWTO (R_PPC_GOT_TLSGD16,
938 1, /* size (0 = byte, 1 = short, 2 = long) */
940 FALSE, /* pc_relative */
942 complain_overflow_signed, /* complain_on_overflow */
943 ppc_elf_unhandled_reloc, /* special_function */
944 "R_PPC_GOT_TLSGD16", /* name */
945 FALSE, /* partial_inplace */
947 0xffff, /* dst_mask */
948 FALSE), /* pcrel_offset */
950 /* Like GOT_TLSGD16, but no overflow. */
951 HOWTO (R_PPC_GOT_TLSGD16_LO,
953 1, /* size (0 = byte, 1 = short, 2 = long) */
955 FALSE, /* pc_relative */
957 complain_overflow_dont, /* complain_on_overflow */
958 ppc_elf_unhandled_reloc, /* special_function */
959 "R_PPC_GOT_TLSGD16_LO", /* name */
960 FALSE, /* partial_inplace */
962 0xffff, /* dst_mask */
963 FALSE), /* pcrel_offset */
965 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
966 HOWTO (R_PPC_GOT_TLSGD16_HI,
968 1, /* size (0 = byte, 1 = short, 2 = long) */
970 FALSE, /* pc_relative */
972 complain_overflow_dont, /* complain_on_overflow */
973 ppc_elf_unhandled_reloc, /* special_function */
974 "R_PPC_GOT_TLSGD16_HI", /* name */
975 FALSE, /* partial_inplace */
977 0xffff, /* dst_mask */
978 FALSE), /* pcrel_offset */
980 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
981 HOWTO (R_PPC_GOT_TLSGD16_HA,
983 1, /* size (0 = byte, 1 = short, 2 = long) */
985 FALSE, /* pc_relative */
987 complain_overflow_dont, /* complain_on_overflow */
988 ppc_elf_unhandled_reloc, /* special_function */
989 "R_PPC_GOT_TLSGD16_HA", /* name */
990 FALSE, /* partial_inplace */
992 0xffff, /* dst_mask */
993 FALSE), /* pcrel_offset */
995 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
996 with values (sym+add)@dtpmod and zero, and computes the offset to the
998 HOWTO (R_PPC_GOT_TLSLD16,
1000 1, /* size (0 = byte, 1 = short, 2 = long) */
1002 FALSE, /* pc_relative */
1004 complain_overflow_signed, /* complain_on_overflow */
1005 ppc_elf_unhandled_reloc, /* special_function */
1006 "R_PPC_GOT_TLSLD16", /* name */
1007 FALSE, /* partial_inplace */
1009 0xffff, /* dst_mask */
1010 FALSE), /* pcrel_offset */
1012 /* Like GOT_TLSLD16, but no overflow. */
1013 HOWTO (R_PPC_GOT_TLSLD16_LO,
1015 1, /* size (0 = byte, 1 = short, 2 = long) */
1017 FALSE, /* pc_relative */
1019 complain_overflow_dont, /* complain_on_overflow */
1020 ppc_elf_unhandled_reloc, /* special_function */
1021 "R_PPC_GOT_TLSLD16_LO", /* name */
1022 FALSE, /* partial_inplace */
1024 0xffff, /* dst_mask */
1025 FALSE), /* pcrel_offset */
1027 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1028 HOWTO (R_PPC_GOT_TLSLD16_HI,
1029 16, /* rightshift */
1030 1, /* size (0 = byte, 1 = short, 2 = long) */
1032 FALSE, /* pc_relative */
1034 complain_overflow_dont, /* complain_on_overflow */
1035 ppc_elf_unhandled_reloc, /* special_function */
1036 "R_PPC_GOT_TLSLD16_HI", /* name */
1037 FALSE, /* partial_inplace */
1039 0xffff, /* dst_mask */
1040 FALSE), /* pcrel_offset */
1042 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1043 HOWTO (R_PPC_GOT_TLSLD16_HA,
1044 16, /* rightshift */
1045 1, /* size (0 = byte, 1 = short, 2 = long) */
1047 FALSE, /* pc_relative */
1049 complain_overflow_dont, /* complain_on_overflow */
1050 ppc_elf_unhandled_reloc, /* special_function */
1051 "R_PPC_GOT_TLSLD16_HA", /* name */
1052 FALSE, /* partial_inplace */
1054 0xffff, /* dst_mask */
1055 FALSE), /* pcrel_offset */
1057 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1058 the offset to the entry. */
1059 HOWTO (R_PPC_GOT_DTPREL16,
1061 1, /* size (0 = byte, 1 = short, 2 = long) */
1063 FALSE, /* pc_relative */
1065 complain_overflow_signed, /* complain_on_overflow */
1066 ppc_elf_unhandled_reloc, /* special_function */
1067 "R_PPC_GOT_DTPREL16", /* name */
1068 FALSE, /* partial_inplace */
1070 0xffff, /* dst_mask */
1071 FALSE), /* pcrel_offset */
1073 /* Like GOT_DTPREL16, but no overflow. */
1074 HOWTO (R_PPC_GOT_DTPREL16_LO,
1076 1, /* size (0 = byte, 1 = short, 2 = long) */
1078 FALSE, /* pc_relative */
1080 complain_overflow_dont, /* complain_on_overflow */
1081 ppc_elf_unhandled_reloc, /* special_function */
1082 "R_PPC_GOT_DTPREL16_LO", /* name */
1083 FALSE, /* partial_inplace */
1085 0xffff, /* dst_mask */
1086 FALSE), /* pcrel_offset */
1088 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1089 HOWTO (R_PPC_GOT_DTPREL16_HI,
1090 16, /* rightshift */
1091 1, /* size (0 = byte, 1 = short, 2 = long) */
1093 FALSE, /* pc_relative */
1095 complain_overflow_dont, /* complain_on_overflow */
1096 ppc_elf_unhandled_reloc, /* special_function */
1097 "R_PPC_GOT_DTPREL16_HI", /* name */
1098 FALSE, /* partial_inplace */
1100 0xffff, /* dst_mask */
1101 FALSE), /* pcrel_offset */
1103 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1104 HOWTO (R_PPC_GOT_DTPREL16_HA,
1105 16, /* rightshift */
1106 1, /* size (0 = byte, 1 = short, 2 = long) */
1108 FALSE, /* pc_relative */
1110 complain_overflow_dont, /* complain_on_overflow */
1111 ppc_elf_unhandled_reloc, /* special_function */
1112 "R_PPC_GOT_DTPREL16_HA", /* name */
1113 FALSE, /* partial_inplace */
1115 0xffff, /* dst_mask */
1116 FALSE), /* pcrel_offset */
1118 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1119 offset to the entry. */
1120 HOWTO (R_PPC_GOT_TPREL16,
1122 1, /* size (0 = byte, 1 = short, 2 = long) */
1124 FALSE, /* pc_relative */
1126 complain_overflow_signed, /* complain_on_overflow */
1127 ppc_elf_unhandled_reloc, /* special_function */
1128 "R_PPC_GOT_TPREL16", /* name */
1129 FALSE, /* partial_inplace */
1131 0xffff, /* dst_mask */
1132 FALSE), /* pcrel_offset */
1134 /* Like GOT_TPREL16, but no overflow. */
1135 HOWTO (R_PPC_GOT_TPREL16_LO,
1137 1, /* size (0 = byte, 1 = short, 2 = long) */
1139 FALSE, /* pc_relative */
1141 complain_overflow_dont, /* complain_on_overflow */
1142 ppc_elf_unhandled_reloc, /* special_function */
1143 "R_PPC_GOT_TPREL16_LO", /* name */
1144 FALSE, /* partial_inplace */
1146 0xffff, /* dst_mask */
1147 FALSE), /* pcrel_offset */
1149 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1150 HOWTO (R_PPC_GOT_TPREL16_HI,
1151 16, /* rightshift */
1152 1, /* size (0 = byte, 1 = short, 2 = long) */
1154 FALSE, /* pc_relative */
1156 complain_overflow_dont, /* complain_on_overflow */
1157 ppc_elf_unhandled_reloc, /* special_function */
1158 "R_PPC_GOT_TPREL16_HI", /* name */
1159 FALSE, /* partial_inplace */
1161 0xffff, /* dst_mask */
1162 FALSE), /* pcrel_offset */
1164 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1165 HOWTO (R_PPC_GOT_TPREL16_HA,
1166 16, /* rightshift */
1167 1, /* size (0 = byte, 1 = short, 2 = long) */
1169 FALSE, /* pc_relative */
1171 complain_overflow_dont, /* complain_on_overflow */
1172 ppc_elf_unhandled_reloc, /* special_function */
1173 "R_PPC_GOT_TPREL16_HA", /* name */
1174 FALSE, /* partial_inplace */
1176 0xffff, /* dst_mask */
1177 FALSE), /* pcrel_offset */
1179 /* The remaining relocs are from the Embedded ELF ABI, and are not
1180 in the SVR4 ELF ABI. */
1182 /* 32 bit value resulting from the addend minus the symbol. */
1183 HOWTO (R_PPC_EMB_NADDR32, /* type */
1185 2, /* size (0 = byte, 1 = short, 2 = long) */
1187 FALSE, /* pc_relative */
1189 complain_overflow_bitfield, /* complain_on_overflow */
1190 bfd_elf_generic_reloc, /* special_function */
1191 "R_PPC_EMB_NADDR32", /* name */
1192 FALSE, /* partial_inplace */
1194 0xffffffff, /* dst_mask */
1195 FALSE), /* pcrel_offset */
1197 /* 16 bit value resulting from the addend minus the symbol. */
1198 HOWTO (R_PPC_EMB_NADDR16, /* type */
1200 1, /* size (0 = byte, 1 = short, 2 = long) */
1202 FALSE, /* pc_relative */
1204 complain_overflow_bitfield, /* complain_on_overflow */
1205 bfd_elf_generic_reloc, /* special_function */
1206 "R_PPC_EMB_NADDR16", /* name */
1207 FALSE, /* partial_inplace */
1209 0xffff, /* dst_mask */
1210 FALSE), /* pcrel_offset */
1212 /* 16 bit value resulting from the addend minus the symbol. */
1213 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1215 1, /* size (0 = byte, 1 = short, 2 = long) */
1217 FALSE, /* pc_relative */
1219 complain_overflow_dont,/* complain_on_overflow */
1220 bfd_elf_generic_reloc, /* special_function */
1221 "R_PPC_EMB_ADDR16_LO", /* name */
1222 FALSE, /* partial_inplace */
1224 0xffff, /* dst_mask */
1225 FALSE), /* pcrel_offset */
1227 /* The high order 16 bits of the addend minus the symbol. */
1228 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1229 16, /* rightshift */
1230 1, /* size (0 = byte, 1 = short, 2 = long) */
1232 FALSE, /* pc_relative */
1234 complain_overflow_dont, /* complain_on_overflow */
1235 bfd_elf_generic_reloc, /* special_function */
1236 "R_PPC_EMB_NADDR16_HI", /* name */
1237 FALSE, /* partial_inplace */
1239 0xffff, /* dst_mask */
1240 FALSE), /* pcrel_offset */
1242 /* The high order 16 bits of the result of the addend minus the address,
1243 plus 1 if the contents of the low 16 bits, treated as a signed number,
1245 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1246 16, /* rightshift */
1247 1, /* size (0 = byte, 1 = short, 2 = long) */
1249 FALSE, /* pc_relative */
1251 complain_overflow_dont, /* complain_on_overflow */
1252 ppc_elf_addr16_ha_reloc, /* special_function */
1253 "R_PPC_EMB_NADDR16_HA", /* name */
1254 FALSE, /* partial_inplace */
1256 0xffff, /* dst_mask */
1257 FALSE), /* pcrel_offset */
1259 /* 16 bit value resulting from allocating a 4 byte word to hold an
1260 address in the .sdata section, and returning the offset from
1261 _SDA_BASE_ for that relocation. */
1262 HOWTO (R_PPC_EMB_SDAI16, /* type */
1264 1, /* size (0 = byte, 1 = short, 2 = long) */
1266 FALSE, /* pc_relative */
1268 complain_overflow_bitfield, /* complain_on_overflow */
1269 bfd_elf_generic_reloc, /* special_function */
1270 "R_PPC_EMB_SDAI16", /* name */
1271 FALSE, /* partial_inplace */
1273 0xffff, /* dst_mask */
1274 FALSE), /* pcrel_offset */
1276 /* 16 bit value resulting from allocating a 4 byte word to hold an
1277 address in the .sdata2 section, and returning the offset from
1278 _SDA2_BASE_ for that relocation. */
1279 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1281 1, /* size (0 = byte, 1 = short, 2 = long) */
1283 FALSE, /* pc_relative */
1285 complain_overflow_bitfield, /* complain_on_overflow */
1286 bfd_elf_generic_reloc, /* special_function */
1287 "R_PPC_EMB_SDA2I16", /* name */
1288 FALSE, /* partial_inplace */
1290 0xffff, /* dst_mask */
1291 FALSE), /* pcrel_offset */
1293 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1294 small data items. */
1295 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1297 1, /* size (0 = byte, 1 = short, 2 = long) */
1299 FALSE, /* pc_relative */
1301 complain_overflow_signed, /* complain_on_overflow */
1302 bfd_elf_generic_reloc, /* special_function */
1303 "R_PPC_EMB_SDA2REL", /* name */
1304 FALSE, /* partial_inplace */
1306 0xffff, /* dst_mask */
1307 FALSE), /* pcrel_offset */
1309 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1310 signed offset from the appropriate base, and filling in the register
1311 field with the appropriate register (0, 2, or 13). */
1312 HOWTO (R_PPC_EMB_SDA21, /* type */
1314 2, /* size (0 = byte, 1 = short, 2 = long) */
1316 FALSE, /* pc_relative */
1318 complain_overflow_signed, /* complain_on_overflow */
1319 bfd_elf_generic_reloc, /* special_function */
1320 "R_PPC_EMB_SDA21", /* name */
1321 FALSE, /* partial_inplace */
1323 0xffff, /* dst_mask */
1324 FALSE), /* pcrel_offset */
1326 /* Relocation not handled: R_PPC_EMB_MRKREF */
1327 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1328 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1329 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1330 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1331 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1333 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1334 in the 16 bit signed offset from the appropriate base, and filling in the
1335 register field with the appropriate register (0, 2, or 13). */
1336 HOWTO (R_PPC_EMB_RELSDA, /* type */
1338 1, /* size (0 = byte, 1 = short, 2 = long) */
1340 TRUE, /* pc_relative */
1342 complain_overflow_signed, /* complain_on_overflow */
1343 bfd_elf_generic_reloc, /* special_function */
1344 "R_PPC_EMB_RELSDA", /* name */
1345 FALSE, /* partial_inplace */
1347 0xffff, /* dst_mask */
1348 FALSE), /* pcrel_offset */
1350 /* A 16 bit relative relocation. */
1351 HOWTO (R_PPC_REL16, /* type */
1353 1, /* size (0 = byte, 1 = short, 2 = long) */
1355 TRUE, /* pc_relative */
1357 complain_overflow_bitfield, /* complain_on_overflow */
1358 bfd_elf_generic_reloc, /* special_function */
1359 "R_PPC_REL16", /* name */
1360 FALSE, /* partial_inplace */
1362 0xffff, /* dst_mask */
1363 TRUE), /* pcrel_offset */
1365 /* A 16 bit relative relocation without overflow. */
1366 HOWTO (R_PPC_REL16_LO, /* type */
1368 1, /* size (0 = byte, 1 = short, 2 = long) */
1370 TRUE, /* pc_relative */
1372 complain_overflow_dont,/* complain_on_overflow */
1373 bfd_elf_generic_reloc, /* special_function */
1374 "R_PPC_REL16_LO", /* name */
1375 FALSE, /* partial_inplace */
1377 0xffff, /* dst_mask */
1378 TRUE), /* pcrel_offset */
1380 /* The high order 16 bits of a relative address. */
1381 HOWTO (R_PPC_REL16_HI, /* type */
1382 16, /* rightshift */
1383 1, /* size (0 = byte, 1 = short, 2 = long) */
1385 TRUE, /* pc_relative */
1387 complain_overflow_dont, /* complain_on_overflow */
1388 bfd_elf_generic_reloc, /* special_function */
1389 "R_PPC_REL16_HI", /* name */
1390 FALSE, /* partial_inplace */
1392 0xffff, /* dst_mask */
1393 TRUE), /* pcrel_offset */
1395 /* The high order 16 bits of a relative address, plus 1 if the contents of
1396 the low 16 bits, treated as a signed number, is negative. */
1397 HOWTO (R_PPC_REL16_HA, /* type */
1398 16, /* rightshift */
1399 1, /* size (0 = byte, 1 = short, 2 = long) */
1401 TRUE, /* pc_relative */
1403 complain_overflow_dont, /* complain_on_overflow */
1404 ppc_elf_addr16_ha_reloc, /* special_function */
1405 "R_PPC_REL16_HA", /* name */
1406 FALSE, /* partial_inplace */
1408 0xffff, /* dst_mask */
1409 TRUE), /* pcrel_offset */
1411 /* GNU extension to record C++ vtable hierarchy. */
1412 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1414 0, /* size (0 = byte, 1 = short, 2 = long) */
1416 FALSE, /* pc_relative */
1418 complain_overflow_dont, /* complain_on_overflow */
1419 NULL, /* special_function */
1420 "R_PPC_GNU_VTINHERIT", /* name */
1421 FALSE, /* partial_inplace */
1424 FALSE), /* pcrel_offset */
1426 /* GNU extension to record C++ vtable member usage. */
1427 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1429 0, /* size (0 = byte, 1 = short, 2 = long) */
1431 FALSE, /* pc_relative */
1433 complain_overflow_dont, /* complain_on_overflow */
1434 NULL, /* special_function */
1435 "R_PPC_GNU_VTENTRY", /* name */
1436 FALSE, /* partial_inplace */
1439 FALSE), /* pcrel_offset */
1441 /* Phony reloc to handle AIX style TOC entries. */
1442 HOWTO (R_PPC_TOC16, /* type */
1444 1, /* size (0 = byte, 1 = short, 2 = long) */
1446 FALSE, /* pc_relative */
1448 complain_overflow_signed, /* complain_on_overflow */
1449 bfd_elf_generic_reloc, /* special_function */
1450 "R_PPC_TOC16", /* name */
1451 FALSE, /* partial_inplace */
1453 0xffff, /* dst_mask */
1454 FALSE), /* pcrel_offset */
1457 /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1460 ppc_elf_howto_init (void)
1462 unsigned int i, type;
1465 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1468 type = ppc_elf_howto_raw[i].type;
1469 if (type >= (sizeof (ppc_elf_howto_table)
1470 / sizeof (ppc_elf_howto_table[0])))
1472 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1476 static reloc_howto_type *
1477 ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1478 bfd_reloc_code_real_type code)
1480 enum elf_ppc_reloc_type r;
1482 /* Initialize howto table if not already done. */
1483 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1484 ppc_elf_howto_init ();
1491 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1492 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1493 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1494 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1495 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1496 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1497 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1498 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1499 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1500 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1501 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1502 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1503 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1504 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1505 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1506 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1507 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1508 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1509 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1510 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1511 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1512 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1513 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1514 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1515 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1516 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1517 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1518 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1519 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1520 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1521 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1522 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1523 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1524 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1525 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1526 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
1527 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1528 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1529 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1530 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1531 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1532 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1533 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1534 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1535 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1536 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1537 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1538 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1539 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1540 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1541 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1542 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1543 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1544 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1545 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1546 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1547 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1548 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1549 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1550 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1551 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1552 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1553 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1554 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1555 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1556 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1557 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1558 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1559 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1560 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1561 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1562 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1563 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1564 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1565 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1566 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1567 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1568 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1569 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
1570 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
1571 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
1572 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
1573 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
1574 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
1575 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
1578 return ppc_elf_howto_table[r];
1581 static reloc_howto_type *
1582 ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1588 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1590 if (ppc_elf_howto_raw[i].name != NULL
1591 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
1592 return &ppc_elf_howto_raw[i];
1597 /* Set the howto pointer for a PowerPC ELF reloc. */
1600 ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1602 Elf_Internal_Rela *dst)
1604 /* Initialize howto table if not already done. */
1605 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1606 ppc_elf_howto_init ();
1608 BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
1609 cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
1611 /* Just because the above assert didn't trigger doesn't mean that
1612 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
1613 if (!cache_ptr->howto)
1615 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
1616 abfd, ELF32_R_TYPE (dst->r_info));
1617 bfd_set_error (bfd_error_bad_value);
1619 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
1623 /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
1625 static bfd_reloc_status_type
1626 ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
1627 arelent *reloc_entry,
1629 void *data ATTRIBUTE_UNUSED,
1630 asection *input_section,
1632 char **error_message ATTRIBUTE_UNUSED)
1636 if (output_bfd != NULL)
1638 reloc_entry->address += input_section->output_offset;
1639 return bfd_reloc_ok;
1642 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
1643 return bfd_reloc_outofrange;
1645 if (bfd_is_com_section (symbol->section))
1648 relocation = symbol->value;
1650 relocation += symbol->section->output_section->vma;
1651 relocation += symbol->section->output_offset;
1652 relocation += reloc_entry->addend;
1653 if (reloc_entry->howto->pc_relative)
1654 relocation -= reloc_entry->address;
1656 reloc_entry->addend += (relocation & 0x8000) << 1;
1658 return bfd_reloc_continue;
1661 static bfd_reloc_status_type
1662 ppc_elf_unhandled_reloc (bfd *abfd,
1663 arelent *reloc_entry,
1666 asection *input_section,
1668 char **error_message)
1670 /* If this is a relocatable link (output_bfd test tells us), just
1671 call the generic function. Any adjustment will be done at final
1673 if (output_bfd != NULL)
1674 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
1675 input_section, output_bfd, error_message);
1677 if (error_message != NULL)
1679 static char buf[60];
1680 sprintf (buf, _("generic linker can't handle %s"),
1681 reloc_entry->howto->name);
1682 *error_message = buf;
1684 return bfd_reloc_dangerous;
1687 /* Sections created by the linker. */
1689 typedef struct elf_linker_section
1691 /* Pointer to the bfd section. */
1695 /* Associated bss section name. */
1696 const char *bss_name;
1697 /* Associated symbol name. */
1698 const char *sym_name;
1699 /* Associated symbol. */
1700 struct elf_link_hash_entry *sym;
1701 } elf_linker_section_t;
1703 /* Linked list of allocated pointer entries. This hangs off of the
1704 symbol lists, and provides allows us to return different pointers,
1705 based on different addend's. */
1707 typedef struct elf_linker_section_pointers
1709 /* next allocated pointer for this symbol */
1710 struct elf_linker_section_pointers *next;
1711 /* offset of pointer from beginning of section */
1715 /* which linker section this is */
1716 elf_linker_section_t *lsect;
1717 } elf_linker_section_pointers_t;
1719 struct ppc_elf_obj_tdata
1721 struct elf_obj_tdata elf;
1723 /* A mapping from local symbols to offsets into the various linker
1724 sections added. This is index by the symbol index. */
1725 elf_linker_section_pointers_t **linker_section_pointers;
1727 /* Flags used to auto-detect plt type. */
1728 unsigned int makes_plt_call : 1;
1729 unsigned int has_rel16 : 1;
1732 #define ppc_elf_tdata(bfd) \
1733 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
1735 #define elf_local_ptr_offsets(bfd) \
1736 (ppc_elf_tdata (bfd)->linker_section_pointers)
1738 /* Override the generic function because we store some extras. */
1741 ppc_elf_mkobject (bfd *abfd)
1743 if (abfd->tdata.any == NULL)
1745 bfd_size_type amt = sizeof (struct ppc_elf_obj_tdata);
1746 abfd->tdata.any = bfd_zalloc (abfd, amt);
1747 if (abfd->tdata.any == NULL)
1750 return bfd_elf_mkobject (abfd);
1753 /* Fix bad default arch selected for a 32 bit input bfd when the
1754 default is 64 bit. */
1757 ppc_elf_object_p (bfd *abfd)
1759 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
1761 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
1763 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
1765 /* Relies on arch after 64 bit default being 32 bit default. */
1766 abfd->arch_info = abfd->arch_info->next;
1767 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
1773 /* Function to set whether a module needs the -mrelocatable bit set. */
1776 ppc_elf_set_private_flags (bfd *abfd, flagword flags)
1778 BFD_ASSERT (!elf_flags_init (abfd)
1779 || elf_elfheader (abfd)->e_flags == flags);
1781 elf_elfheader (abfd)->e_flags = flags;
1782 elf_flags_init (abfd) = TRUE;
1786 /* Support for core dump NOTE sections. */
1789 ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1794 switch (note->descsz)
1799 case 268: /* Linux/PPC. */
1801 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
1804 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
1813 /* Make a ".reg/999" section. */
1814 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1815 size, note->descpos + offset);
1819 ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1821 switch (note->descsz)
1826 case 128: /* Linux/PPC elf_prpsinfo. */
1827 elf_tdata (abfd)->core_program
1828 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
1829 elf_tdata (abfd)->core_command
1830 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
1833 /* Note that for some reason, a spurious space is tacked
1834 onto the end of the args in some (at least one anyway)
1835 implementations, so strip it off if it exists. */
1838 char *command = elf_tdata (abfd)->core_command;
1839 int n = strlen (command);
1841 if (0 < n && command[n - 1] == ' ')
1842 command[n - 1] = '\0';
1849 ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
1861 va_start (ap, note_type);
1862 memset (data, 0, 32);
1863 strncpy (data + 32, va_arg (ap, const char *), 16);
1864 strncpy (data + 48, va_arg (ap, const char *), 80);
1866 return elfcore_write_note (abfd, buf, bufsiz,
1867 "CORE", note_type, data, sizeof (data));
1878 va_start (ap, note_type);
1879 memset (data, 0, 72);
1880 pid = va_arg (ap, long);
1881 bfd_put_32 (abfd, pid, data + 24);
1882 cursig = va_arg (ap, int);
1883 bfd_put_16 (abfd, cursig, data + 12);
1884 greg = va_arg (ap, const void *);
1885 memcpy (data + 72, greg, 192);
1886 memset (data + 264, 0, 4);
1888 return elfcore_write_note (abfd, buf, bufsiz,
1889 "CORE", note_type, data, sizeof (data));
1894 /* Return address for Ith PLT stub in section PLT, for relocation REL
1895 or (bfd_vma) -1 if it should not be included. */
1898 ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
1899 const asection *plt ATTRIBUTE_UNUSED,
1902 return rel->address;
1905 /* Handle a PowerPC specific section when reading an object file. This
1906 is called when bfd_section_from_shdr finds a section with an unknown
1910 ppc_elf_section_from_shdr (bfd *abfd,
1911 Elf_Internal_Shdr *hdr,
1918 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
1921 newsect = hdr->bfd_section;
1922 flags = bfd_get_section_flags (abfd, newsect);
1923 if (hdr->sh_flags & SHF_EXCLUDE)
1924 flags |= SEC_EXCLUDE;
1926 if (hdr->sh_type == SHT_ORDERED)
1927 flags |= SEC_SORT_ENTRIES;
1929 bfd_set_section_flags (abfd, newsect, flags);
1933 /* Set up any other section flags and such that may be necessary. */
1936 ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1937 Elf_Internal_Shdr *shdr,
1940 if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE)
1941 shdr->sh_flags |= SHF_EXCLUDE;
1943 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
1944 shdr->sh_type = SHT_ORDERED;
1949 /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
1950 need to bump up the number of section headers. */
1953 ppc_elf_additional_program_headers (bfd *abfd,
1954 struct bfd_link_info *info ATTRIBUTE_UNUSED)
1959 s = bfd_get_section_by_name (abfd, ".sbss2");
1960 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
1963 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
1964 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
1970 /* Add extra PPC sections -- Note, for now, make .sbss2 and
1971 .PPC.EMB.sbss0 a normal section, and not a bss section so
1972 that the linker doesn't crater when trying to make more than
1975 static const struct bfd_elf_special_section ppc_elf_special_sections[] =
1977 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
1978 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
1979 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
1980 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
1981 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
1982 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
1983 { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 },
1984 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
1985 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
1986 { NULL, 0, 0, 0, 0 }
1989 /* This is what we want for new plt/got. */
1990 static struct bfd_elf_special_section ppc_alt_plt =
1991 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
1993 static const struct bfd_elf_special_section *
1994 ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1996 const struct bfd_elf_special_section *ssect;
1998 /* See if this is one of the special sections. */
1999 if (sec->name == NULL)
2002 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2006 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2007 ssect = &ppc_alt_plt;
2011 return _bfd_elf_get_sec_type_attr (abfd, sec);
2014 /* Very simple linked list structure for recording apuinfo values. */
2015 typedef struct apuinfo_list
2017 struct apuinfo_list *next;
2018 unsigned long value;
2022 static apuinfo_list *head;
2026 apuinfo_list_init (void)
2032 apuinfo_list_add (unsigned long value)
2034 apuinfo_list *entry = head;
2036 while (entry != NULL)
2038 if (entry->value == value)
2040 entry = entry->next;
2043 entry = bfd_malloc (sizeof (* entry));
2047 entry->value = value;
2053 apuinfo_list_length (void)
2055 apuinfo_list *entry;
2056 unsigned long count;
2058 for (entry = head, count = 0;
2060 entry = entry->next)
2066 static inline unsigned long
2067 apuinfo_list_element (unsigned long number)
2069 apuinfo_list * entry;
2073 entry = entry->next)
2076 return entry ? entry->value : 0;
2080 apuinfo_list_finish (void)
2082 apuinfo_list *entry;
2084 for (entry = head; entry;)
2086 apuinfo_list *next = entry->next;
2094 #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2095 #define APUINFO_LABEL "APUinfo"
2097 /* Scan the input BFDs and create a linked list of
2098 the APUinfo values that will need to be emitted. */
2101 ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2106 unsigned num_input_sections;
2107 bfd_size_type output_section_size;
2109 unsigned num_entries;
2110 unsigned long offset;
2111 unsigned long length;
2112 const char *error_message = NULL;
2114 if (link_info == NULL)
2117 /* Scan the input bfds, looking for apuinfo sections. */
2118 num_input_sections = 0;
2119 output_section_size = 0;
2121 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
2123 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2126 ++ num_input_sections;
2127 output_section_size += asec->size;
2131 /* We need at least one input sections
2132 in order to make merging worthwhile. */
2133 if (num_input_sections < 1)
2136 /* Just make sure that the output section exists as well. */
2137 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2141 /* Allocate a buffer for the contents of the input sections. */
2142 buffer = bfd_malloc (output_section_size);
2147 apuinfo_list_init ();
2149 /* Read in the input sections contents. */
2150 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
2152 unsigned long datum;
2155 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2159 length = asec->size;
2162 error_message = _("corrupt or empty %s section in %B");
2166 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
2167 || (bfd_bread (buffer + offset, length, ibfd) != length))
2169 error_message = _("unable to read in %s section from %B");
2173 /* Process the contents of the section. */
2174 ptr = buffer + offset;
2175 error_message = _("corrupt %s section in %B");
2177 /* Verify the contents of the header. Note - we have to
2178 extract the values this way in order to allow for a
2179 host whose endian-ness is different from the target. */
2180 datum = bfd_get_32 (ibfd, ptr);
2181 if (datum != sizeof APUINFO_LABEL)
2184 datum = bfd_get_32 (ibfd, ptr + 8);
2188 if (strcmp (ptr + 12, APUINFO_LABEL) != 0)
2191 /* Get the number of bytes used for apuinfo entries. */
2192 datum = bfd_get_32 (ibfd, ptr + 4);
2193 if (datum + 20 != length)
2196 /* Make sure that we do not run off the end of the section. */
2197 if (offset + length > output_section_size)
2200 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2201 for (i = 0; i < datum; i += 4)
2202 apuinfo_list_add (bfd_get_32 (ibfd, ptr + 20 + i));
2204 /* Update the offset. */
2208 error_message = NULL;
2210 /* Compute the size of the output section. */
2211 num_entries = apuinfo_list_length ();
2212 output_section_size = 20 + num_entries * 4;
2214 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2216 if (! bfd_set_section_size (abfd, asec, output_section_size))
2218 error_message = _("warning: unable to set size of %s section in %B");
2224 (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
2227 /* Prevent the output section from accumulating the input sections'
2228 contents. We have already stored this in our linked list structure. */
2231 ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
2232 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2234 bfd_byte *contents ATTRIBUTE_UNUSED)
2236 return (apuinfo_list_length ()
2237 && strcmp (asec->name, APUINFO_SECTION_NAME) == 0);
2240 /* Finally we can generate the output section. */
2243 ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
2248 unsigned num_entries;
2249 bfd_size_type length;
2251 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2255 if (apuinfo_list_length () == 0)
2258 length = asec->size;
2262 buffer = bfd_malloc (length);
2265 (*_bfd_error_handler)
2266 (_("failed to allocate space for new APUinfo section."));
2270 /* Create the apuinfo header. */
2271 num_entries = apuinfo_list_length ();
2272 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2273 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2274 bfd_put_32 (abfd, 0x2, buffer + 8);
2275 strcpy ((char *) buffer + 12, APUINFO_LABEL);
2278 for (i = 0; i < num_entries; i++)
2280 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2284 if (length != asec->size)
2285 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
2287 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2288 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
2292 apuinfo_list_finish ();
2295 /* The following functions are specific to the ELF linker, while
2296 functions above are used generally. They appear in this file more
2297 or less in the order in which they are called. eg.
2298 ppc_elf_check_relocs is called early in the link process,
2299 ppc_elf_finish_dynamic_sections is one of the last functions
2302 /* The PPC linker needs to keep track of the number of relocs that it
2303 decides to copy as dynamic relocs in check_relocs for each symbol.
2304 This is so that it can later discard them if they are found to be
2305 unnecessary. We store the information in a field extending the
2306 regular ELF linker hash table. */
2308 struct ppc_elf_dyn_relocs
2310 struct ppc_elf_dyn_relocs *next;
2312 /* The input section of the reloc. */
2315 /* Total number of relocs copied for the input section. */
2316 bfd_size_type count;
2318 /* Number of pc-relative relocs copied for the input section. */
2319 bfd_size_type pc_count;
2322 /* Track PLT entries needed for a given symbol. We might need more
2323 than one glink entry per symbol. */
2326 struct plt_entry *next;
2328 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
2329 This field stores the offset into .got2 used to initialise the
2330 GOT pointer reg. It will always be at least 32768 (and for
2331 current gcc this is the only offset used). */
2334 /* The .got2 section. */
2337 /* PLT refcount or offset. */
2340 bfd_signed_vma refcount;
2344 /* .glink stub offset. */
2345 bfd_vma glink_offset;
2348 /* Of those relocs that might be copied as dynamic relocs, this macro
2349 selects those that must be copied when linking a shared library,
2350 even when the symbol is local. */
2352 #define MUST_BE_DYN_RELOC(RTYPE) \
2353 ((RTYPE) != R_PPC_REL24 \
2354 && (RTYPE) != R_PPC_REL14 \
2355 && (RTYPE) != R_PPC_REL14_BRTAKEN \
2356 && (RTYPE) != R_PPC_REL14_BRNTAKEN \
2357 && (RTYPE) != R_PPC_REL32)
2359 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2360 copying dynamic variables from a shared lib into an app's dynbss
2361 section, and instead use a dynamic relocation to point into the
2363 #define ELIMINATE_COPY_RELOCS 1
2365 /* PPC ELF linker hash entry. */
2367 struct ppc_elf_link_hash_entry
2369 struct elf_link_hash_entry elf;
2371 /* If this symbol is used in the linker created sections, the processor
2372 specific backend uses this field to map the field into the offset
2373 from the beginning of the section. */
2374 elf_linker_section_pointers_t *linker_section_pointer;
2376 /* Track dynamic relocs copied for this symbol. */
2377 struct ppc_elf_dyn_relocs *dyn_relocs;
2379 /* Contexts in which symbol is used in the GOT (or TOC).
2380 TLS_GD .. TLS_TLS bits are or'd into the mask as the
2381 corresponding relocs are encountered during check_relocs.
2382 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2383 indicate the corresponding GOT entry type is not needed. */
2384 #define TLS_GD 1 /* GD reloc. */
2385 #define TLS_LD 2 /* LD reloc. */
2386 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
2387 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2388 #define TLS_TLS 16 /* Any TLS reloc. */
2389 #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
2392 /* Nonzero if we have seen a small data relocation referring to this
2394 unsigned char has_sda_refs;
2397 #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
2399 /* PPC ELF linker hash table. */
2401 struct ppc_elf_link_hash_table
2403 struct elf_link_hash_table elf;
2405 /* Short-cuts to get to dynamic linker sections. */
2415 elf_linker_section_t sdata[2];
2418 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
2421 /* The .got.plt section (VxWorks only)*/
2424 /* Shortcut to .__tls_get_addr. */
2425 struct elf_link_hash_entry *tls_get_addr;
2427 /* The bfd that forced an old-style PLT. */
2430 /* TLS local dynamic got entry handling. */
2432 bfd_signed_vma refcount;
2436 /* Offset of PltResolve function in glink. */
2437 bfd_vma glink_pltresolve;
2439 /* Size of reserved GOT entries. */
2440 unsigned int got_header_size;
2441 /* Non-zero if allocating the header left a gap. */
2442 unsigned int got_gap;
2444 /* The type of PLT we have chosen to use. */
2445 enum ppc_elf_plt_type plt_type;
2447 /* Set if we should emit symbols for stubs. */
2448 unsigned int emit_stub_syms:1;
2450 /* True if the target system is VxWorks. */
2451 unsigned int is_vxworks:1;
2453 /* The size of PLT entries. */
2455 /* The distance between adjacent PLT slots. */
2457 /* The size of the first PLT entry. */
2458 int plt_initial_entry_size;
2460 /* Small local sym to section mapping cache. */
2461 struct sym_sec_cache sym_sec;
2464 /* Get the PPC ELF linker hash table from a link_info structure. */
2466 #define ppc_elf_hash_table(p) \
2467 ((struct ppc_elf_link_hash_table *) (p)->hash)
2469 /* Create an entry in a PPC ELF linker hash table. */
2471 static struct bfd_hash_entry *
2472 ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2473 struct bfd_hash_table *table,
2476 /* Allocate the structure if it has not already been allocated by a
2480 entry = bfd_hash_allocate (table,
2481 sizeof (struct ppc_elf_link_hash_entry));
2486 /* Call the allocation method of the superclass. */
2487 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2490 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
2491 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
2492 ppc_elf_hash_entry (entry)->tls_mask = 0;
2498 /* Create a PPC ELF linker hash table. */
2500 static struct bfd_link_hash_table *
2501 ppc_elf_link_hash_table_create (bfd *abfd)
2503 struct ppc_elf_link_hash_table *ret;
2505 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
2509 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
2510 ppc_elf_link_hash_newfunc,
2511 sizeof (struct ppc_elf_link_hash_entry)))
2517 ret->elf.init_plt_refcount.refcount = 0;
2518 ret->elf.init_plt_refcount.glist = NULL;
2519 ret->elf.init_plt_offset.offset = 0;
2520 ret->elf.init_plt_offset.glist = NULL;
2522 ret->sdata[0].name = ".sdata";
2523 ret->sdata[0].sym_name = "_SDA_BASE_";
2524 ret->sdata[0].bss_name = ".sbss";
2526 ret->sdata[1].name = ".sdata2";
2527 ret->sdata[1].sym_name = "_SDA2_BASE_";
2528 ret->sdata[1].bss_name = ".sbss2";
2530 ret->plt_entry_size = 12;
2531 ret->plt_slot_size = 8;
2532 ret->plt_initial_entry_size = 72;
2534 return &ret->elf.root;
2537 /* Create .got and the related sections. */
2540 ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
2542 struct ppc_elf_link_hash_table *htab;
2546 if (!_bfd_elf_create_got_section (abfd, info))
2549 htab = ppc_elf_hash_table (info);
2550 htab->got = s = bfd_get_section_by_name (abfd, ".got");
2554 if (htab->is_vxworks)
2556 htab->sgotplt = bfd_get_section_by_name (abfd, ".got.plt");
2562 /* The powerpc .got has a blrl instruction in it. Mark it
2564 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
2565 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2566 if (!bfd_set_section_flags (abfd, s, flags))
2570 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2571 | SEC_LINKER_CREATED | SEC_READONLY);
2572 htab->relgot = bfd_make_section_with_flags (abfd, ".rela.got", flags);
2574 || ! bfd_set_section_alignment (abfd, htab->relgot, 2))
2580 /* We have to create .dynsbss and .rela.sbss here so that they get mapped
2581 to output sections (just like _bfd_elf_create_dynamic_sections has
2582 to create .dynbss and .rela.bss). */
2585 ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2587 struct ppc_elf_link_hash_table *htab;
2591 htab = ppc_elf_hash_table (info);
2593 if (htab->got == NULL
2594 && !ppc_elf_create_got (abfd, info))
2597 if (!_bfd_elf_create_dynamic_sections (abfd, info))
2600 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
2601 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2603 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags | SEC_CODE);
2606 || !bfd_set_section_alignment (abfd, s, 4))
2609 htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss");
2610 s = bfd_make_section_with_flags (abfd, ".dynsbss",
2611 SEC_ALLOC | SEC_LINKER_CREATED);
2618 htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss");
2619 s = bfd_make_section_with_flags (abfd, ".rela.sbss", flags);
2622 || ! bfd_set_section_alignment (abfd, s, 2))
2626 if (htab->is_vxworks
2627 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2630 htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2631 htab->plt = s = bfd_get_section_by_name (abfd, ".plt");
2635 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
2636 if (htab->plt_type == PLT_VXWORKS)
2637 /* The VxWorks PLT is a loaded section with contents. */
2638 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
2639 return bfd_set_section_flags (abfd, s, flags);
2642 /* Copy the extra info we tack onto an elf_link_hash_entry. */
2645 ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
2646 struct elf_link_hash_entry *dir,
2647 struct elf_link_hash_entry *ind)
2649 struct ppc_elf_link_hash_entry *edir, *eind;
2651 edir = (struct ppc_elf_link_hash_entry *) dir;
2652 eind = (struct ppc_elf_link_hash_entry *) ind;
2654 if (eind->dyn_relocs != NULL)
2656 if (edir->dyn_relocs != NULL)
2658 struct ppc_elf_dyn_relocs **pp;
2659 struct ppc_elf_dyn_relocs *p;
2661 /* Add reloc counts against the indirect sym to the direct sym
2662 list. Merge any entries against the same section. */
2663 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
2665 struct ppc_elf_dyn_relocs *q;
2667 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2668 if (q->sec == p->sec)
2670 q->pc_count += p->pc_count;
2671 q->count += p->count;
2678 *pp = edir->dyn_relocs;
2681 edir->dyn_relocs = eind->dyn_relocs;
2682 eind->dyn_relocs = NULL;
2685 edir->tls_mask |= eind->tls_mask;
2686 edir->has_sda_refs |= eind->has_sda_refs;
2688 /* If called to transfer flags for a weakdef during processing
2689 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
2690 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
2691 if (!(ELIMINATE_COPY_RELOCS
2692 && eind->elf.root.type != bfd_link_hash_indirect
2693 && edir->elf.dynamic_adjusted))
2694 edir->elf.non_got_ref |= eind->elf.non_got_ref;
2696 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
2697 edir->elf.ref_regular |= eind->elf.ref_regular;
2698 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
2699 edir->elf.needs_plt |= eind->elf.needs_plt;
2701 /* If we were called to copy over info for a weak sym, that's all. */
2702 if (eind->elf.root.type != bfd_link_hash_indirect)
2705 /* Copy over the GOT refcount entries that we may have already seen to
2706 the symbol which just became indirect. */
2707 edir->elf.got.refcount += eind->elf.got.refcount;
2708 eind->elf.got.refcount = 0;
2710 /* And plt entries. */
2711 if (eind->elf.plt.plist != NULL)
2713 if (edir->elf.plt.plist != NULL)
2715 struct plt_entry **entp;
2716 struct plt_entry *ent;
2718 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
2720 struct plt_entry *dent;
2722 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
2723 if (dent->sec == ent->sec && dent->addend == ent->addend)
2725 dent->plt.refcount += ent->plt.refcount;
2732 *entp = edir->elf.plt.plist;
2735 edir->elf.plt.plist = eind->elf.plt.plist;
2736 eind->elf.plt.plist = NULL;
2739 if (eind->elf.dynindx != -1)
2741 if (edir->elf.dynindx != -1)
2742 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
2743 edir->elf.dynstr_index);
2744 edir->elf.dynindx = eind->elf.dynindx;
2745 edir->elf.dynstr_index = eind->elf.dynstr_index;
2746 eind->elf.dynindx = -1;
2747 eind->elf.dynstr_index = 0;
2751 /* Return 1 if target is one of ours. */
2754 is_ppc_elf_target (const struct bfd_target *targ)
2756 extern const bfd_target bfd_elf32_powerpc_vec;
2757 extern const bfd_target bfd_elf32_powerpc_vxworks_vec;
2758 extern const bfd_target bfd_elf32_powerpcle_vec;
2760 return (targ == &bfd_elf32_powerpc_vec
2761 || targ == &bfd_elf32_powerpc_vxworks_vec
2762 || targ == &bfd_elf32_powerpcle_vec);
2765 /* Hook called by the linker routine which adds symbols from an object
2766 file. We use it to put .comm items in .sbss, and not .bss. */
2769 ppc_elf_add_symbol_hook (bfd *abfd,
2770 struct bfd_link_info *info,
2771 Elf_Internal_Sym *sym,
2772 const char **namep ATTRIBUTE_UNUSED,
2773 flagword *flagsp ATTRIBUTE_UNUSED,
2777 if (sym->st_shndx == SHN_COMMON
2778 && !info->relocatable
2779 && sym->st_size <= elf_gp_size (abfd)
2780 && is_ppc_elf_target (info->hash->creator))
2782 /* Common symbols less than or equal to -G nn bytes are automatically
2784 struct ppc_elf_link_hash_table *htab;
2786 htab = ppc_elf_hash_table (info);
2787 if (htab->sbss == NULL)
2789 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
2791 if (!htab->elf.dynobj)
2792 htab->elf.dynobj = abfd;
2794 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
2797 if (htab->sbss == NULL)
2802 *valp = sym->st_size;
2809 create_sdata_sym (struct ppc_elf_link_hash_table *htab,
2810 elf_linker_section_t *lsect)
2812 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
2814 if (lsect->sym == NULL)
2816 if (lsect->sym->root.type == bfd_link_hash_new)
2817 lsect->sym->non_elf = 0;
2818 lsect->sym->ref_regular = 1;
2822 /* Create a special linker section. */
2825 ppc_elf_create_linker_section (bfd *abfd,
2826 struct bfd_link_info *info,
2828 elf_linker_section_t *lsect)
2830 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
2833 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2834 | SEC_LINKER_CREATED);
2836 /* Record the first bfd that needs the special sections. */
2837 if (!htab->elf.dynobj)
2838 htab->elf.dynobj = abfd;
2840 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
2844 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
2848 return create_sdata_sym (htab, lsect);
2851 /* Find a linker generated pointer with a given addend and type. */
2853 static elf_linker_section_pointers_t *
2854 elf_find_pointer_linker_section
2855 (elf_linker_section_pointers_t *linker_pointers,
2857 elf_linker_section_t *lsect)
2859 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
2860 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
2861 return linker_pointers;
2866 /* Allocate a pointer to live in a linker created section. */
2869 elf_create_pointer_linker_section (bfd *abfd,
2870 elf_linker_section_t *lsect,
2871 struct elf_link_hash_entry *h,
2872 const Elf_Internal_Rela *rel)
2874 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
2875 elf_linker_section_pointers_t *linker_section_ptr;
2876 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
2879 BFD_ASSERT (lsect != NULL);
2881 /* Is this a global symbol? */
2884 struct ppc_elf_link_hash_entry *eh;
2886 /* Has this symbol already been allocated? If so, our work is done. */
2887 eh = (struct ppc_elf_link_hash_entry *) h;
2888 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
2893 ptr_linker_section_ptr = &eh->linker_section_pointer;
2897 /* Allocation of a pointer to a local symbol. */
2898 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
2900 /* Allocate a table to hold the local symbols if first time. */
2903 unsigned int num_symbols = elf_tdata (abfd)->symtab_hdr.sh_info;
2906 amt *= sizeof (elf_linker_section_pointers_t *);
2907 ptr = bfd_zalloc (abfd, amt);
2912 elf_local_ptr_offsets (abfd) = ptr;
2915 /* Has this symbol already been allocated? If so, our work is done. */
2916 if (elf_find_pointer_linker_section (ptr[r_symndx],
2921 ptr_linker_section_ptr = &ptr[r_symndx];
2924 /* Allocate space for a pointer in the linker section, and allocate
2925 a new pointer record from internal memory. */
2926 BFD_ASSERT (ptr_linker_section_ptr != NULL);
2927 amt = sizeof (elf_linker_section_pointers_t);
2928 linker_section_ptr = bfd_alloc (abfd, amt);
2930 if (!linker_section_ptr)
2933 linker_section_ptr->next = *ptr_linker_section_ptr;
2934 linker_section_ptr->addend = rel->r_addend;
2935 linker_section_ptr->lsect = lsect;
2936 *ptr_linker_section_ptr = linker_section_ptr;
2938 linker_section_ptr->offset = lsect->section->size;
2939 lsect->section->size += 4;
2943 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
2944 lsect->name, (long) linker_section_ptr->offset,
2945 (long) lsect->section->size);
2952 update_local_sym_info (bfd *abfd,
2953 Elf_Internal_Shdr *symtab_hdr,
2954 unsigned long r_symndx,
2957 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
2958 char *local_got_tls_masks;
2960 if (local_got_refcounts == NULL)
2962 bfd_size_type size = symtab_hdr->sh_info;
2964 size *= sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks);
2965 local_got_refcounts = bfd_zalloc (abfd, size);
2966 if (local_got_refcounts == NULL)
2968 elf_local_got_refcounts (abfd) = local_got_refcounts;
2971 local_got_refcounts[r_symndx] += 1;
2972 local_got_tls_masks = (char *) (local_got_refcounts + symtab_hdr->sh_info);
2973 local_got_tls_masks[r_symndx] |= tls_type;
2978 update_plt_info (bfd *abfd, struct elf_link_hash_entry *h,
2979 asection *sec, bfd_vma addend)
2981 struct plt_entry *ent;
2985 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
2986 if (ent->sec == sec && ent->addend == addend)
2990 bfd_size_type amt = sizeof (*ent);
2991 ent = bfd_alloc (abfd, amt);
2994 ent->next = h->plt.plist;
2996 ent->addend = addend;
2997 ent->plt.refcount = 0;
3000 ent->plt.refcount += 1;
3004 static struct plt_entry *
3005 find_plt_ent (struct elf_link_hash_entry *h, asection *sec, bfd_vma addend)
3007 struct plt_entry *ent;
3011 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
3012 if (ent->sec == sec && ent->addend == addend)
3018 bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3020 (*_bfd_error_handler)
3021 (_("%B: relocation %s cannot be used when making a shared object"),
3023 ppc_elf_howto_table[r_type]->name);
3024 bfd_set_error (bfd_error_bad_value);
3027 /* Look through the relocs for a section during the first phase, and
3028 allocate space in the global offset table or procedure linkage
3032 ppc_elf_check_relocs (bfd *abfd,
3033 struct bfd_link_info *info,
3035 const Elf_Internal_Rela *relocs)
3037 struct ppc_elf_link_hash_table *htab;
3038 Elf_Internal_Shdr *symtab_hdr;
3039 struct elf_link_hash_entry **sym_hashes;
3040 const Elf_Internal_Rela *rel;
3041 const Elf_Internal_Rela *rel_end;
3042 asection *got2, *sreloc;
3044 if (info->relocatable)
3047 /* Don't do anything special with non-loaded, non-alloced sections.
3048 In particular, any relocs in such sections should not affect GOT
3049 and PLT reference counting (ie. we don't allow them to create GOT
3050 or PLT entries), there's no possibility or desire to optimize TLS
3051 relocs, and there's not much point in propagating relocs to shared
3052 libs that the dynamic linker won't relocate. */
3053 if ((sec->flags & SEC_ALLOC) == 0)
3057 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3061 /* Initialize howto table if not already done. */
3062 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3063 ppc_elf_howto_init ();
3065 htab = ppc_elf_hash_table (info);
3066 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3067 sym_hashes = elf_sym_hashes (abfd);
3068 got2 = bfd_get_section_by_name (abfd, ".got2");
3071 rel_end = relocs + sec->reloc_count;
3072 for (rel = relocs; rel < rel_end; rel++)
3074 unsigned long r_symndx;
3075 enum elf_ppc_reloc_type r_type;
3076 struct elf_link_hash_entry *h;
3079 r_symndx = ELF32_R_SYM (rel->r_info);
3080 if (r_symndx < symtab_hdr->sh_info)
3084 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3085 while (h->root.type == bfd_link_hash_indirect
3086 || h->root.type == bfd_link_hash_warning)
3087 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3090 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3091 This shows up in particular in an R_PPC_ADDR32 in the eabi
3094 && htab->got == NULL
3095 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3097 if (htab->elf.dynobj == NULL)
3098 htab->elf.dynobj = abfd;
3099 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3101 BFD_ASSERT (h == htab->elf.hgot);
3104 r_type = ELF32_R_TYPE (rel->r_info);
3107 case R_PPC_GOT_TLSLD16:
3108 case R_PPC_GOT_TLSLD16_LO:
3109 case R_PPC_GOT_TLSLD16_HI:
3110 case R_PPC_GOT_TLSLD16_HA:
3111 htab->tlsld_got.refcount += 1;
3112 tls_type = TLS_TLS | TLS_LD;
3115 case R_PPC_GOT_TLSGD16:
3116 case R_PPC_GOT_TLSGD16_LO:
3117 case R_PPC_GOT_TLSGD16_HI:
3118 case R_PPC_GOT_TLSGD16_HA:
3119 tls_type = TLS_TLS | TLS_GD;
3122 case R_PPC_GOT_TPREL16:
3123 case R_PPC_GOT_TPREL16_LO:
3124 case R_PPC_GOT_TPREL16_HI:
3125 case R_PPC_GOT_TPREL16_HA:
3127 info->flags |= DF_STATIC_TLS;
3128 tls_type = TLS_TLS | TLS_TPREL;
3131 case R_PPC_GOT_DTPREL16:
3132 case R_PPC_GOT_DTPREL16_LO:
3133 case R_PPC_GOT_DTPREL16_HI:
3134 case R_PPC_GOT_DTPREL16_HA:
3135 tls_type = TLS_TLS | TLS_DTPREL;
3137 sec->has_tls_reloc = 1;
3140 /* GOT16 relocations */
3142 case R_PPC_GOT16_LO:
3143 case R_PPC_GOT16_HI:
3144 case R_PPC_GOT16_HA:
3145 /* This symbol requires a global offset table entry. */
3146 if (htab->got == NULL)
3148 if (htab->elf.dynobj == NULL)
3149 htab->elf.dynobj = abfd;
3150 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3155 h->got.refcount += 1;
3156 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
3159 /* This is a global offset table entry for a local symbol. */
3160 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
3164 /* Indirect .sdata relocation. */
3165 case R_PPC_EMB_SDAI16:
3168 bad_shared_reloc (abfd, r_type);
3171 if (htab->sdata[0].section == NULL
3172 && !ppc_elf_create_linker_section (abfd, info, 0,
3175 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
3180 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3181 h->non_got_ref = TRUE;
3185 /* Indirect .sdata2 relocation. */
3186 case R_PPC_EMB_SDA2I16:
3189 bad_shared_reloc (abfd, r_type);
3192 if (htab->sdata[1].section == NULL
3193 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3196 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
3201 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3202 h->non_got_ref = TRUE;
3206 case R_PPC_SDAREL16:
3209 bad_shared_reloc (abfd, r_type);
3212 if (htab->sdata[0].sym == NULL
3213 && !create_sdata_sym (htab, &htab->sdata[0]))
3217 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3218 h->non_got_ref = TRUE;
3222 case R_PPC_EMB_SDA2REL:
3225 bad_shared_reloc (abfd, r_type);
3228 if (htab->sdata[1].sym == NULL
3229 && !create_sdata_sym (htab, &htab->sdata[1]))
3233 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3234 h->non_got_ref = TRUE;
3238 case R_PPC_EMB_SDA21:
3239 case R_PPC_EMB_RELSDA:
3242 bad_shared_reloc (abfd, r_type);
3245 if (htab->sdata[0].sym == NULL
3246 && !create_sdata_sym (htab, &htab->sdata[0]))
3248 if (htab->sdata[1].sym == NULL
3249 && !create_sdata_sym (htab, &htab->sdata[1]))
3253 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3254 h->non_got_ref = TRUE;
3258 case R_PPC_EMB_NADDR32:
3259 case R_PPC_EMB_NADDR16:
3260 case R_PPC_EMB_NADDR16_LO:
3261 case R_PPC_EMB_NADDR16_HI:
3262 case R_PPC_EMB_NADDR16_HA:
3265 bad_shared_reloc (abfd, r_type);
3269 h->non_got_ref = TRUE;
3273 case R_PPC_PLTREL24:
3274 case R_PPC_PLTREL32:
3275 case R_PPC_PLT16_LO:
3276 case R_PPC_PLT16_HI:
3277 case R_PPC_PLT16_HA:
3279 fprintf (stderr, "Reloc requires a PLT entry\n");
3281 /* This symbol requires a procedure linkage table entry. We
3282 actually build the entry in finish_dynamic_symbol,
3283 because this might be a case of linking PIC code without
3284 linking in any dynamic objects, in which case we don't
3285 need to generate a procedure linkage table after all. */
3289 /* It does not make sense to have a procedure linkage
3290 table entry for a local symbol. */
3291 (*_bfd_error_handler) (_("%B(%A+0x%lx): %s reloc against "
3295 (long) rel->r_offset,
3296 ppc_elf_howto_table[r_type]->name);
3297 bfd_set_error (bfd_error_bad_value);
3304 if (r_type == R_PPC_PLTREL24)
3306 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3307 addend = rel->r_addend;
3310 if (!update_plt_info (abfd, h, got2, addend))
3315 /* The following relocations don't need to propagate the
3316 relocation if linking a shared object since they are
3317 section relative. */
3319 case R_PPC_SECTOFF_LO:
3320 case R_PPC_SECTOFF_HI:
3321 case R_PPC_SECTOFF_HA:
3322 case R_PPC_DTPREL16:
3323 case R_PPC_DTPREL16_LO:
3324 case R_PPC_DTPREL16_HI:
3325 case R_PPC_DTPREL16_HA:
3330 case R_PPC_REL16_LO:
3331 case R_PPC_REL16_HI:
3332 case R_PPC_REL16_HA:
3333 ppc_elf_tdata (abfd)->has_rel16 = 1;
3336 /* These are just markers. */
3338 case R_PPC_EMB_MRKREF:
3343 /* These should only appear in dynamic objects. */
3345 case R_PPC_GLOB_DAT:
3346 case R_PPC_JMP_SLOT:
3347 case R_PPC_RELATIVE:
3350 /* These aren't handled yet. We'll report an error later. */
3352 case R_PPC_EMB_RELSEC16:
3353 case R_PPC_EMB_RELST_LO:
3354 case R_PPC_EMB_RELST_HI:
3355 case R_PPC_EMB_RELST_HA:
3356 case R_PPC_EMB_BIT_FLD:
3359 /* This refers only to functions defined in the shared library. */
3360 case R_PPC_LOCAL24PC:
3361 if (h && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
3363 htab->plt_type = PLT_OLD;
3364 htab->old_bfd = abfd;
3368 /* This relocation describes the C++ object vtable hierarchy.
3369 Reconstruct it for later use during GC. */
3370 case R_PPC_GNU_VTINHERIT:
3371 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3375 /* This relocation describes which C++ vtable entries are actually
3376 used. Record for later use during GC. */
3377 case R_PPC_GNU_VTENTRY:
3378 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3382 /* We shouldn't really be seeing these. */
3385 info->flags |= DF_STATIC_TLS;
3389 case R_PPC_DTPMOD32:
3390 case R_PPC_DTPREL32:
3394 case R_PPC_TPREL16_LO:
3395 case R_PPC_TPREL16_HI:
3396 case R_PPC_TPREL16_HA:
3398 info->flags |= DF_STATIC_TLS;
3404 && (sec->flags & SEC_CODE) != 0
3405 && (info->shared || info->pie)
3406 && htab->plt_type == PLT_UNSET)
3408 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
3409 the start of a function, which assembles to a REL32
3410 reference to .got2. If we detect one of these, then
3411 force the old PLT layout because the linker cannot
3412 reliably deduce the GOT pointer value needed for
3416 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3420 htab->plt_type = PLT_OLD;
3421 htab->old_bfd = abfd;
3424 if (h == NULL || h == htab->elf.hgot)
3430 case R_PPC_REL14_BRTAKEN:
3431 case R_PPC_REL14_BRNTAKEN:
3434 if (h == htab->elf.hgot)
3436 if (htab->plt_type == PLT_UNSET)
3438 htab->plt_type = PLT_OLD;
3439 htab->old_bfd = abfd;
3448 case R_PPC_ADDR16_LO:
3449 case R_PPC_ADDR16_HI:
3450 case R_PPC_ADDR16_HA:
3452 case R_PPC_ADDR14_BRTAKEN:
3453 case R_PPC_ADDR14_BRNTAKEN:
3457 if (h != NULL && !info->shared)
3459 /* We may need a plt entry if the symbol turns out to be
3460 a function defined in a dynamic object. */
3461 if (!update_plt_info (abfd, h, NULL, 0))
3464 /* We may need a copy reloc too. */
3469 /* If we are creating a shared library, and this is a reloc
3470 against a global symbol, or a non PC relative reloc
3471 against a local symbol, then we need to copy the reloc
3472 into the shared library. However, if we are linking with
3473 -Bsymbolic, we do not need to copy a reloc against a
3474 global symbol which is defined in an object we are
3475 including in the link (i.e., DEF_REGULAR is set). At
3476 this point we have not seen all the input files, so it is
3477 possible that DEF_REGULAR is not set now but will be set
3478 later (it is never cleared). In case of a weak definition,
3479 DEF_REGULAR may be cleared later by a strong definition in
3480 a shared library. We account for that possibility below by
3481 storing information in the dyn_relocs field of the hash
3482 table entry. A similar situation occurs when creating
3483 shared libraries and symbol visibility changes render the
3486 If on the other hand, we are creating an executable, we
3487 may need to keep relocations for symbols satisfied by a
3488 dynamic library if we manage to avoid copy relocs for the
3491 && (MUST_BE_DYN_RELOC (r_type)
3493 && (! info->symbolic
3494 || h->root.type == bfd_link_hash_defweak
3495 || !h->def_regular))))
3496 || (ELIMINATE_COPY_RELOCS
3499 && (h->root.type == bfd_link_hash_defweak
3500 || !h->def_regular)))
3502 struct ppc_elf_dyn_relocs *p;
3503 struct ppc_elf_dyn_relocs **head;
3507 "ppc_elf_check_relocs needs to "
3508 "create relocation for %s\n",
3509 (h && h->root.root.string
3510 ? h->root.root.string : "<unknown>"));
3516 name = (bfd_elf_string_from_elf_section
3518 elf_elfheader (abfd)->e_shstrndx,
3519 elf_section_data (sec)->rel_hdr.sh_name));
3523 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
3524 && strcmp (bfd_get_section_name (abfd, sec),
3527 if (htab->elf.dynobj == NULL)
3528 htab->elf.dynobj = abfd;
3529 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
3534 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3535 | SEC_IN_MEMORY | SEC_LINKER_CREATED
3536 | SEC_ALLOC | SEC_LOAD);
3537 sreloc = bfd_make_section_with_flags (htab->elf.dynobj,
3541 || ! bfd_set_section_alignment (htab->elf.dynobj,
3545 elf_section_data (sec)->sreloc = sreloc;
3548 /* If this is a global symbol, we count the number of
3549 relocations we need for this symbol. */
3552 head = &ppc_elf_hash_entry (h)->dyn_relocs;
3556 /* Track dynamic relocs needed for local syms too.
3557 We really need local syms available to do this
3563 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
3568 vpp = &elf_section_data (s)->local_dynrel;
3569 head = (struct ppc_elf_dyn_relocs **) vpp;
3573 if (p == NULL || p->sec != sec)
3575 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
3586 if (!MUST_BE_DYN_RELOC (r_type))
3598 /* Merge object attributes from IBFD into OBFD. Raise an error if
3599 there are conflicting attributes. */
3601 ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
3603 obj_attribute *in_attr;
3604 obj_attribute *out_attr;
3606 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3608 /* This is the first object. Copy the attributes. */
3609 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3611 /* Use the Tag_null value to indicate the attributes have been
3613 elf_known_obj_attributes_proc (obfd)[0].i = 1;
3618 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
3619 non-conflicting ones. */
3620 in_attr = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
3621 out_attr = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
3622 if (in_attr[Tag_GNU_Power_ABI_FP].i != out_attr[Tag_GNU_Power_ABI_FP].i)
3624 out_attr[Tag_GNU_Power_ABI_FP].type = 1;
3625 if (out_attr[Tag_GNU_Power_ABI_FP].i == 0)
3626 out_attr[Tag_GNU_Power_ABI_FP].i = in_attr[Tag_GNU_Power_ABI_FP].i;
3627 else if (in_attr[Tag_GNU_Power_ABI_FP].i == 0)
3629 else if (out_attr[Tag_GNU_Power_ABI_FP].i == 1
3630 && in_attr[Tag_GNU_Power_ABI_FP].i == 2)
3632 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
3633 else if (out_attr[Tag_GNU_Power_ABI_FP].i == 2
3634 && in_attr[Tag_GNU_Power_ABI_FP].i == 1)
3636 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
3637 else if (in_attr[Tag_GNU_Power_ABI_FP].i > 2)
3639 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
3640 in_attr[Tag_GNU_Power_ABI_FP].i);
3643 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
3644 out_attr[Tag_GNU_Power_ABI_FP].i);
3647 /* Merge Tag_compatibility attributes and any common GNU ones. */
3648 _bfd_elf_merge_object_attributes (ibfd, obfd);
3653 /* Merge backend specific data from an object file to the output
3654 object file when linking. */
3657 ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3663 if (!is_ppc_elf_target (ibfd->xvec)
3664 || !is_ppc_elf_target (obfd->xvec))
3667 /* Check if we have the same endianess. */
3668 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
3671 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
3674 new_flags = elf_elfheader (ibfd)->e_flags;
3675 old_flags = elf_elfheader (obfd)->e_flags;
3676 if (!elf_flags_init (obfd))
3678 /* First call, no flags set. */
3679 elf_flags_init (obfd) = TRUE;
3680 elf_elfheader (obfd)->e_flags = new_flags;
3683 /* Compatible flags are ok. */
3684 else if (new_flags == old_flags)
3687 /* Incompatible flags. */
3690 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
3691 to be linked with either. */
3693 if ((new_flags & EF_PPC_RELOCATABLE) != 0
3694 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
3697 (*_bfd_error_handler)
3698 (_("%B: compiled with -mrelocatable and linked with "
3699 "modules compiled normally"), ibfd);
3701 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
3702 && (old_flags & EF_PPC_RELOCATABLE) != 0)
3705 (*_bfd_error_handler)
3706 (_("%B: compiled normally and linked with "
3707 "modules compiled with -mrelocatable"), ibfd);
3710 /* The output is -mrelocatable-lib iff both the input files are. */
3711 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
3712 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
3714 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
3715 but each input file is either -mrelocatable or -mrelocatable-lib. */
3716 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
3717 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
3718 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
3719 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
3721 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
3722 any module uses it. */
3723 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
3725 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
3726 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
3728 /* Warn about any other mismatches. */
3729 if (new_flags != old_flags)
3732 (*_bfd_error_handler)
3733 (_("%B: uses different e_flags (0x%lx) fields "
3734 "than previous modules (0x%lx)"),
3735 ibfd, (long) new_flags, (long) old_flags);
3740 bfd_set_error (bfd_error_bad_value);
3748 /* Choose which PLT scheme to use, and set .plt flags appropriately.
3749 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
3751 ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
3752 struct bfd_link_info *info,
3753 enum ppc_elf_plt_type plt_style,
3756 struct ppc_elf_link_hash_table *htab;
3759 htab = ppc_elf_hash_table (info);
3761 if (htab->plt_type == PLT_UNSET)
3763 if (plt_style == PLT_OLD)
3764 htab->plt_type = PLT_OLD;
3768 enum ppc_elf_plt_type plt_type = plt_style;
3770 /* Look through the reloc flags left by ppc_elf_check_relocs.
3771 Use the old style bss plt if a file makes plt calls
3772 without using the new relocs, and if ld isn't given
3773 --secure-plt and we never see REL16 relocs. */
3774 if (plt_type == PLT_UNSET)
3776 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
3777 if (is_ppc_elf_target (ibfd->xvec))
3779 if (ppc_elf_tdata (ibfd)->has_rel16)
3781 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
3784 htab->old_bfd = ibfd;
3788 htab->plt_type = plt_type;
3791 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
3792 info->callbacks->info (_("Using bss-plt due to %B"), htab->old_bfd);
3794 htab->emit_stub_syms = emit_stub_syms;
3796 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
3798 if (htab->plt_type == PLT_NEW)
3800 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
3801 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3803 /* The new PLT is a loaded section. */
3804 if (htab->plt != NULL
3805 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
3808 /* The new GOT is not executable. */
3809 if (htab->got != NULL
3810 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
3815 /* Stop an unused .glink section from affecting .text alignment. */
3816 if (htab->glink != NULL
3817 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
3820 return htab->plt_type == PLT_NEW;
3823 /* Return the section that should be marked against GC for a given
3827 ppc_elf_gc_mark_hook (asection *sec,
3828 struct bfd_link_info *info,
3829 Elf_Internal_Rela *rel,
3830 struct elf_link_hash_entry *h,
3831 Elf_Internal_Sym *sym)
3834 switch (ELF32_R_TYPE (rel->r_info))
3836 case R_PPC_GNU_VTINHERIT:
3837 case R_PPC_GNU_VTENTRY:
3841 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3844 /* Update the got, plt and dynamic reloc reference counts for the
3845 section being removed. */
3848 ppc_elf_gc_sweep_hook (bfd *abfd,
3849 struct bfd_link_info *info,
3851 const Elf_Internal_Rela *relocs)
3853 struct ppc_elf_link_hash_table *htab;
3854 Elf_Internal_Shdr *symtab_hdr;
3855 struct elf_link_hash_entry **sym_hashes;
3856 bfd_signed_vma *local_got_refcounts;
3857 const Elf_Internal_Rela *rel, *relend;
3860 if ((sec->flags & SEC_ALLOC) == 0)
3863 elf_section_data (sec)->local_dynrel = NULL;
3865 htab = ppc_elf_hash_table (info);
3866 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3867 sym_hashes = elf_sym_hashes (abfd);
3868 local_got_refcounts = elf_local_got_refcounts (abfd);
3869 got2 = bfd_get_section_by_name (abfd, ".got2");
3871 relend = relocs + sec->reloc_count;
3872 for (rel = relocs; rel < relend; rel++)
3874 unsigned long r_symndx;
3875 enum elf_ppc_reloc_type r_type;
3876 struct elf_link_hash_entry *h = NULL;
3878 r_symndx = ELF32_R_SYM (rel->r_info);
3879 if (r_symndx >= symtab_hdr->sh_info)
3881 struct ppc_elf_dyn_relocs **pp, *p;
3882 struct ppc_elf_link_hash_entry *eh;
3884 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3885 while (h->root.type == bfd_link_hash_indirect
3886 || h->root.type == bfd_link_hash_warning)
3887 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3888 eh = (struct ppc_elf_link_hash_entry *) h;
3890 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3893 /* Everything must go for SEC. */
3899 r_type = ELF32_R_TYPE (rel->r_info);
3902 case R_PPC_GOT_TLSLD16:
3903 case R_PPC_GOT_TLSLD16_LO:
3904 case R_PPC_GOT_TLSLD16_HI:
3905 case R_PPC_GOT_TLSLD16_HA:
3906 htab->tlsld_got.refcount -= 1;
3909 case R_PPC_GOT_TLSGD16:
3910 case R_PPC_GOT_TLSGD16_LO:
3911 case R_PPC_GOT_TLSGD16_HI:
3912 case R_PPC_GOT_TLSGD16_HA:
3913 case R_PPC_GOT_TPREL16:
3914 case R_PPC_GOT_TPREL16_LO:
3915 case R_PPC_GOT_TPREL16_HI:
3916 case R_PPC_GOT_TPREL16_HA:
3917 case R_PPC_GOT_DTPREL16:
3918 case R_PPC_GOT_DTPREL16_LO:
3919 case R_PPC_GOT_DTPREL16_HI:
3920 case R_PPC_GOT_DTPREL16_HA:
3922 case R_PPC_GOT16_LO:
3923 case R_PPC_GOT16_HI:
3924 case R_PPC_GOT16_HA:
3927 if (h->got.refcount > 0)
3930 else if (local_got_refcounts != NULL)
3932 if (local_got_refcounts[r_symndx] > 0)
3933 local_got_refcounts[r_symndx]--;
3939 case R_PPC_REL14_BRTAKEN:
3940 case R_PPC_REL14_BRNTAKEN:
3942 if (h == NULL || h == htab->elf.hgot)
3949 case R_PPC_ADDR16_LO:
3950 case R_PPC_ADDR16_HI:
3951 case R_PPC_ADDR16_HA:
3953 case R_PPC_ADDR14_BRTAKEN:
3954 case R_PPC_ADDR14_BRNTAKEN:
3961 case R_PPC_PLTREL24:
3962 case R_PPC_PLTREL32:
3963 case R_PPC_PLT16_LO:
3964 case R_PPC_PLT16_HI:
3965 case R_PPC_PLT16_HA:
3968 bfd_vma addend = r_type == R_PPC_PLTREL24 ? rel->r_addend : 0;
3969 struct plt_entry *ent = find_plt_ent (h, got2, addend);
3970 if (ent->plt.refcount > 0)
3971 ent->plt.refcount -= 1;
3982 /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
3985 ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
3987 struct ppc_elf_link_hash_table *htab;
3989 htab = ppc_elf_hash_table (info);
3990 if (htab->plt_type == PLT_NEW
3991 && htab->plt != NULL
3992 && htab->plt->output_section != NULL)
3994 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
3995 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
3998 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
3999 FALSE, FALSE, TRUE);
4000 return _bfd_elf_tls_setup (obfd, info);
4003 /* Run through all the TLS relocs looking for optimization
4007 ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
4008 struct bfd_link_info *info)
4012 struct ppc_elf_link_hash_table *htab;
4014 if (info->relocatable || info->shared)
4017 htab = ppc_elf_hash_table (info);
4018 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4020 Elf_Internal_Sym *locsyms = NULL;
4021 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4023 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
4024 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
4026 Elf_Internal_Rela *relstart, *rel, *relend;
4027 int expecting_tls_get_addr;
4029 /* Read the relocations. */
4030 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
4032 if (relstart == NULL)
4035 expecting_tls_get_addr = 0;
4036 relend = relstart + sec->reloc_count;
4037 for (rel = relstart; rel < relend; rel++)
4039 enum elf_ppc_reloc_type r_type;
4040 unsigned long r_symndx;
4041 struct elf_link_hash_entry *h = NULL;
4043 char tls_set, tls_clear;
4044 bfd_boolean is_local;
4046 r_symndx = ELF32_R_SYM (rel->r_info);
4047 if (r_symndx >= symtab_hdr->sh_info)
4049 struct elf_link_hash_entry **sym_hashes;
4051 sym_hashes = elf_sym_hashes (ibfd);
4052 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4053 while (h->root.type == bfd_link_hash_indirect
4054 || h->root.type == bfd_link_hash_warning)
4055 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4063 r_type = ELF32_R_TYPE (rel->r_info);
4066 case R_PPC_GOT_TLSLD16:
4067 case R_PPC_GOT_TLSLD16_LO:
4068 case R_PPC_GOT_TLSLD16_HI:
4069 case R_PPC_GOT_TLSLD16_HA:
4070 /* These relocs should never be against a symbol
4071 defined in a shared lib. Leave them alone if
4072 that turns out to be the case. */
4073 expecting_tls_get_addr = 0;
4074 htab->tlsld_got.refcount -= 1;
4081 expecting_tls_get_addr = 1;
4084 case R_PPC_GOT_TLSGD16:
4085 case R_PPC_GOT_TLSGD16_LO:
4086 case R_PPC_GOT_TLSGD16_HI:
4087 case R_PPC_GOT_TLSGD16_HA:
4093 tls_set = TLS_TLS | TLS_TPRELGD;
4095 expecting_tls_get_addr = 1;
4098 case R_PPC_GOT_TPREL16:
4099 case R_PPC_GOT_TPREL16_LO:
4100 case R_PPC_GOT_TPREL16_HI:
4101 case R_PPC_GOT_TPREL16_HA:
4102 expecting_tls_get_addr = 0;
4107 tls_clear = TLS_TPREL;
4114 case R_PPC_REL14_BRTAKEN:
4115 case R_PPC_REL14_BRNTAKEN:
4117 if (expecting_tls_get_addr
4119 && h == htab->tls_get_addr)
4121 struct plt_entry *ent = find_plt_ent (h, NULL, 0);
4122 if (ent != NULL && ent->plt.refcount > 0)
4123 ent->plt.refcount -= 1;
4125 expecting_tls_get_addr = 0;
4129 expecting_tls_get_addr = 0;
4137 /* We managed to get rid of a got entry. */
4138 if (h->got.refcount > 0)
4139 h->got.refcount -= 1;
4141 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
4145 Elf_Internal_Sym *sym;
4146 bfd_signed_vma *lgot_refs;
4149 if (locsyms == NULL)
4151 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4152 if (locsyms == NULL)
4153 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4154 symtab_hdr->sh_info,
4155 0, NULL, NULL, NULL);
4156 if (locsyms == NULL)
4158 if (elf_section_data (sec)->relocs != relstart)
4163 sym = locsyms + r_symndx;
4164 lgot_refs = elf_local_got_refcounts (ibfd);
4165 if (lgot_refs == NULL)
4169 /* We managed to get rid of a got entry. */
4170 if (lgot_refs[r_symndx] > 0)
4171 lgot_refs[r_symndx] -= 1;
4173 lgot_masks = (char *) (lgot_refs + symtab_hdr->sh_info);
4174 tls_mask = &lgot_masks[r_symndx];
4177 *tls_mask |= tls_set;
4178 *tls_mask &= ~tls_clear;
4181 if (elf_section_data (sec)->relocs != relstart)
4186 && (symtab_hdr->contents != (unsigned char *) locsyms))
4188 if (!info->keep_memory)
4191 symtab_hdr->contents = (unsigned char *) locsyms;
4197 /* Adjust a symbol defined by a dynamic object and referenced by a
4198 regular object. The current definition is in some section of the
4199 dynamic object, but we're not including those sections. We have to
4200 change the definition to something the rest of the link can
4204 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4205 struct elf_link_hash_entry *h)
4207 struct ppc_elf_link_hash_table *htab;
4211 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
4212 h->root.root.string);
4215 /* Make sure we know what is going on here. */
4216 htab = ppc_elf_hash_table (info);
4217 BFD_ASSERT (htab->elf.dynobj != NULL
4219 || h->u.weakdef != NULL
4222 && !h->def_regular)));
4224 /* Deal with function syms. */
4225 if (h->type == STT_FUNC
4228 /* Clear procedure linkage table information for any symbol that
4229 won't need a .plt entry. */
4230 struct plt_entry *ent;
4231 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4232 if (ent->plt.refcount > 0)
4235 || SYMBOL_CALLS_LOCAL (info, h)
4236 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4237 && h->root.type == bfd_link_hash_undefweak))
4239 /* A PLT entry is not required/allowed when:
4241 1. We are not using ld.so; because then the PLT entry
4242 can't be set up, so we can't use one. In this case,
4243 ppc_elf_adjust_dynamic_symbol won't even be called.
4245 2. GC has rendered the entry unused.
4247 3. We know for certain that a call to this symbol
4248 will go to this object, or will remain undefined. */
4249 h->plt.plist = NULL;
4255 h->plt.plist = NULL;
4257 /* If this is a weak symbol, and there is a real definition, the
4258 processor independent code will have arranged for us to see the
4259 real definition first, and we can just use the same value. */
4260 if (h->u.weakdef != NULL)
4262 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
4263 || h->u.weakdef->root.type == bfd_link_hash_defweak);
4264 h->root.u.def.section = h->u.weakdef->root.u.def.section;
4265 h->root.u.def.value = h->u.weakdef->root.u.def.value;
4266 if (ELIMINATE_COPY_RELOCS)
4267 h->non_got_ref = h->u.weakdef->non_got_ref;
4271 /* This is a reference to a symbol defined by a dynamic object which
4272 is not a function. */
4274 /* If we are creating a shared library, we must presume that the
4275 only references to the symbol are via the global offset table.
4276 For such cases we need not do anything here; the relocations will
4277 be handled correctly by relocate_section. */
4281 /* If there are no references to this symbol that do not use the
4282 GOT, we don't need to generate a copy reloc. */
4283 if (!h->non_got_ref)
4286 /* If we didn't find any dynamic relocs in read-only sections, then we'll
4287 be keeping the dynamic relocs and avoiding the copy reloc. We can't
4288 do this if there are any small data relocations. */
4289 if (ELIMINATE_COPY_RELOCS
4290 && !ppc_elf_hash_entry (h)->has_sda_refs)
4292 struct ppc_elf_dyn_relocs *p;
4293 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
4295 s = p->sec->output_section;
4296 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4309 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
4310 h->root.root.string);
4314 /* We must allocate the symbol in our .dynbss section, which will
4315 become part of the .bss section of the executable. There will be
4316 an entry for this symbol in the .dynsym section. The dynamic
4317 object will contain position independent code, so all references
4318 from the dynamic object to this symbol will go through the global
4319 offset table. The dynamic linker will use the .dynsym entry to
4320 determine the address it must put in the global offset table, so
4321 both the dynamic object and the regular object will refer to the
4322 same memory location for the variable.
4324 Of course, if the symbol is referenced using SDAREL relocs, we
4325 must instead allocate it in .sbss. */
4327 if (ppc_elf_hash_entry (h)->has_sda_refs)
4331 BFD_ASSERT (s != NULL);
4333 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
4334 copy the initial value out of the dynamic object and into the
4335 runtime process image. We need to remember the offset into the
4336 .rela.bss section we are going to use. */
4337 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4341 if (ppc_elf_hash_entry (h)->has_sda_refs)
4342 srel = htab->relsbss;
4344 srel = htab->relbss;
4345 BFD_ASSERT (srel != NULL);
4346 srel->size += sizeof (Elf32_External_Rela);
4350 return _bfd_elf_adjust_dynamic_copy (h, s);
4353 /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
4354 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
4355 specifying the addend on the plt relocation. For -fpic code, the sym
4356 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
4357 xxxxxxxx.got2.plt_pic32.<callee>. */
4360 add_stub_sym (struct plt_entry *ent,
4361 struct elf_link_hash_entry *h,
4362 struct bfd_link_info *info)
4364 struct elf_link_hash_entry *sh;
4365 size_t len1, len2, len3;
4368 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
4370 if (info->shared || info->pie)
4371 stub = ".plt_pic32.";
4373 stub = ".plt_call32.";
4375 len1 = strlen (h->root.root.string);
4376 len2 = strlen (stub);
4379 len3 = strlen (ent->sec->name);
4380 name = bfd_malloc (len1 + len2 + len3 + 9);
4383 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
4385 memcpy (name + 8, ent->sec->name, len3);
4386 memcpy (name + 8 + len3, stub, len2);
4387 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
4388 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
4391 if (sh->root.type == bfd_link_hash_new)
4393 sh->root.type = bfd_link_hash_defined;
4394 sh->root.u.def.section = htab->glink;
4395 sh->root.u.def.value = ent->glink_offset;
4396 sh->ref_regular = 1;
4397 sh->def_regular = 1;
4398 sh->ref_regular_nonweak = 1;
4399 sh->forced_local = 1;
4405 /* Allocate NEED contiguous space in .got, and return the offset.
4406 Handles allocation of the got header when crossing 32k. */
4409 allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
4412 unsigned int max_before_header;
4414 if (htab->plt_type == PLT_VXWORKS)
4416 where = htab->got->size;
4417 htab->got->size += need;
4421 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
4422 if (need <= htab->got_gap)
4424 where = max_before_header - htab->got_gap;
4425 htab->got_gap -= need;
4429 if (htab->got->size + need > max_before_header
4430 && htab->got->size <= max_before_header)
4432 htab->got_gap = max_before_header - htab->got->size;
4433 htab->got->size = max_before_header + htab->got_header_size;
4435 where = htab->got->size;
4436 htab->got->size += need;
4442 /* Allocate space in associated reloc sections for dynamic relocs. */
4445 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
4447 struct bfd_link_info *info = inf;
4448 struct ppc_elf_link_hash_entry *eh;
4449 struct ppc_elf_link_hash_table *htab;
4450 struct ppc_elf_dyn_relocs *p;
4452 if (h->root.type == bfd_link_hash_indirect)
4455 if (h->root.type == bfd_link_hash_warning)
4456 /* When warning symbols are created, they **replace** the "real"
4457 entry in the hash table, thus we never get to see the real
4458 symbol in a hash traversal. So look at it now. */
4459 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4461 htab = ppc_elf_hash_table (info);
4462 if (htab->elf.dynamic_sections_created)
4464 struct plt_entry *ent;
4465 bfd_boolean doneone = FALSE;
4466 bfd_vma plt_offset = 0, glink_offset = 0;
4468 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4469 if (ent->plt.refcount > 0)
4471 /* Make sure this symbol is output as a dynamic symbol. */
4472 if (h->dynindx == -1
4473 && !h->forced_local)
4475 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4480 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
4482 asection *s = htab->plt;
4484 if (htab->plt_type == PLT_NEW)
4488 plt_offset = s->size;
4491 ent->plt.offset = plt_offset;
4494 if (!doneone || info->shared || info->pie)
4496 glink_offset = s->size;
4497 s->size += GLINK_ENTRY_SIZE;
4503 h->root.u.def.section = s;
4504 h->root.u.def.value = glink_offset;
4506 ent->glink_offset = glink_offset;
4508 if (htab->emit_stub_syms
4509 && !add_stub_sym (ent, h, info))
4516 /* If this is the first .plt entry, make room
4517 for the special first entry. */
4519 s->size += htab->plt_initial_entry_size;
4521 /* The PowerPC PLT is actually composed of two
4522 parts, the first part is 2 words (for a load
4523 and a jump), and then there is a remaining
4524 word available at the end. */
4525 plt_offset = (htab->plt_initial_entry_size
4526 + (htab->plt_slot_size
4528 - htab->plt_initial_entry_size)
4529 / htab->plt_entry_size)));
4531 /* If this symbol is not defined in a regular
4532 file, and we are not generating a shared
4533 library, then set the symbol to this location
4534 in the .plt. This is required to make
4535 function pointers compare as equal between
4536 the normal executable and the shared library. */
4540 h->root.u.def.section = s;
4541 h->root.u.def.value = plt_offset;
4544 /* Make room for this entry. */
4545 s->size += htab->plt_entry_size;
4546 /* After the 8192nd entry, room for two entries
4548 if (htab->plt_type == PLT_OLD
4549 && (s->size - htab->plt_initial_entry_size)
4550 / htab->plt_entry_size
4551 > PLT_NUM_SINGLE_ENTRIES)
4552 s->size += htab->plt_entry_size;
4554 ent->plt.offset = plt_offset;
4557 /* We also need to make an entry in the .rela.plt section. */
4560 htab->relplt->size += sizeof (Elf32_External_Rela);
4562 if (htab->plt_type == PLT_VXWORKS)
4564 /* Allocate space for the unloaded relocations. */
4568 == (bfd_vma) htab->plt_initial_entry_size)
4570 htab->srelplt2->size
4571 += sizeof (Elf32_External_Rela)
4572 * VXWORKS_PLTRESOLVE_RELOCS;
4575 htab->srelplt2->size
4576 += sizeof (Elf32_External_Rela)
4577 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS;
4580 /* Every PLT entry has an associated GOT entry in
4582 htab->sgotplt->size += 4;
4588 ent->plt.offset = (bfd_vma) -1;
4591 ent->plt.offset = (bfd_vma) -1;
4595 h->plt.plist = NULL;
4601 h->plt.plist = NULL;
4605 eh = (struct ppc_elf_link_hash_entry *) h;
4606 if (eh->elf.got.refcount > 0)
4608 /* Make sure this symbol is output as a dynamic symbol. */
4609 if (eh->elf.dynindx == -1
4610 && !eh->elf.forced_local)
4612 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
4616 if (eh->tls_mask == (TLS_TLS | TLS_LD)
4617 && !eh->elf.def_dynamic)
4618 /* If just an LD reloc, we'll just use htab->tlsld_got.offset. */
4619 eh->elf.got.offset = (bfd_vma) -1;
4623 unsigned int need = 0;
4624 if ((eh->tls_mask & TLS_TLS) != 0)
4626 if ((eh->tls_mask & TLS_LD) != 0)
4628 if ((eh->tls_mask & TLS_GD) != 0)
4630 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
4632 if ((eh->tls_mask & TLS_DTPREL) != 0)
4637 eh->elf.got.offset = allocate_got (htab, need);
4638 dyn = htab->elf.dynamic_sections_created;
4640 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
4641 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
4642 || eh->elf.root.type != bfd_link_hash_undefweak))
4644 /* All the entries we allocated need relocs.
4645 Except LD only needs one. */
4646 if ((eh->tls_mask & TLS_LD) != 0)
4648 htab->relgot->size += need * (sizeof (Elf32_External_Rela) / 4);
4653 eh->elf.got.offset = (bfd_vma) -1;
4655 if (eh->dyn_relocs == NULL)
4658 /* In the shared -Bsymbolic case, discard space allocated for
4659 dynamic pc-relative relocs against symbols which turn out to be
4660 defined in regular objects. For the normal shared case, discard
4661 space for relocs that have become local due to symbol visibility
4666 /* Relocs that use pc_count are those that appear on a call insn,
4667 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
4668 generated via assembly. We want calls to protected symbols to
4669 resolve directly to the function rather than going via the plt.
4670 If people want function pointer comparisons to work as expected
4671 then they should avoid writing weird assembly. */
4672 if (SYMBOL_CALLS_LOCAL (info, h))
4674 struct ppc_elf_dyn_relocs **pp;
4676 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
4678 p->count -= p->pc_count;
4687 /* Also discard relocs on undefined weak syms with non-default
4689 if (eh->dyn_relocs != NULL
4690 && h->root.type == bfd_link_hash_undefweak)
4692 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4693 eh->dyn_relocs = NULL;
4695 /* Make sure undefined weak symbols are output as a dynamic
4697 else if (h->dynindx == -1
4698 && !h->forced_local)
4700 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4705 else if (ELIMINATE_COPY_RELOCS)
4707 /* For the non-shared case, discard space for relocs against
4708 symbols which turn out to need copy relocs or are not
4715 /* Make sure this symbol is output as a dynamic symbol.
4716 Undefined weak syms won't yet be marked as dynamic. */
4717 if (h->dynindx == -1
4718 && !h->forced_local)
4720 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4724 /* If that succeeded, we know we'll be keeping all the
4726 if (h->dynindx != -1)
4730 eh->dyn_relocs = NULL;
4735 /* Finally, allocate space. */
4736 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4738 asection *sreloc = elf_section_data (p->sec)->sreloc;
4739 sreloc->size += p->count * sizeof (Elf32_External_Rela);
4745 /* Find any dynamic relocs that apply to read-only sections. */
4748 readonly_dynrelocs (struct elf_link_hash_entry *h, void *info)
4750 struct ppc_elf_dyn_relocs *p;
4752 if (h->root.type == bfd_link_hash_indirect)
4755 if (h->root.type == bfd_link_hash_warning)
4756 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4758 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
4760 asection *s = p->sec->output_section;
4763 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
4764 == (SEC_READONLY | SEC_ALLOC)))
4766 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
4768 /* Not an error, just cut short the traversal. */
4775 /* Set the sizes of the dynamic sections. */
4778 ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
4779 struct bfd_link_info *info)
4781 struct ppc_elf_link_hash_table *htab;
4787 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
4790 htab = ppc_elf_hash_table (info);
4791 BFD_ASSERT (htab->elf.dynobj != NULL);
4793 if (elf_hash_table (info)->dynamic_sections_created)
4795 /* Set the contents of the .interp section to the interpreter. */
4796 if (info->executable)
4798 s = bfd_get_section_by_name (htab->elf.dynobj, ".interp");
4799 BFD_ASSERT (s != NULL);
4800 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
4801 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
4805 if (htab->plt_type == PLT_OLD)
4806 htab->got_header_size = 16;
4807 else if (htab->plt_type == PLT_NEW)
4808 htab->got_header_size = 12;
4810 /* Set up .got offsets for local syms, and space for local dynamic
4812 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4814 bfd_signed_vma *local_got;
4815 bfd_signed_vma *end_local_got;
4817 bfd_size_type locsymcount;
4818 Elf_Internal_Shdr *symtab_hdr;
4820 if (!is_ppc_elf_target (ibfd->xvec))
4823 for (s = ibfd->sections; s != NULL; s = s->next)
4825 struct ppc_elf_dyn_relocs *p;
4827 for (p = ((struct ppc_elf_dyn_relocs *)
4828 elf_section_data (s)->local_dynrel);
4832 if (!bfd_is_abs_section (p->sec)
4833 && bfd_is_abs_section (p->sec->output_section))
4835 /* Input section has been discarded, either because
4836 it is a copy of a linkonce section or due to
4837 linker script /DISCARD/, so we'll be discarding
4840 else if (p->count != 0)
4842 elf_section_data (p->sec)->sreloc->size
4843 += p->count * sizeof (Elf32_External_Rela);
4844 if ((p->sec->output_section->flags
4845 & (SEC_READONLY | SEC_ALLOC))
4846 == (SEC_READONLY | SEC_ALLOC))
4847 info->flags |= DF_TEXTREL;
4852 local_got = elf_local_got_refcounts (ibfd);
4856 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4857 locsymcount = symtab_hdr->sh_info;
4858 end_local_got = local_got + locsymcount;
4859 lgot_masks = (char *) end_local_got;
4860 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
4863 if (*lgot_masks == (TLS_TLS | TLS_LD))
4865 /* If just an LD reloc, we'll just use
4866 htab->tlsld_got.offset. */
4867 htab->tlsld_got.refcount += 1;
4868 *local_got = (bfd_vma) -1;
4872 unsigned int need = 0;
4873 if ((*lgot_masks & TLS_TLS) != 0)
4875 if ((*lgot_masks & TLS_GD) != 0)
4877 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
4879 if ((*lgot_masks & TLS_DTPREL) != 0)
4884 *local_got = allocate_got (htab, need);
4886 htab->relgot->size += (need
4887 * (sizeof (Elf32_External_Rela) / 4));
4891 *local_got = (bfd_vma) -1;
4894 if (htab->tlsld_got.refcount > 0)
4896 htab->tlsld_got.offset = allocate_got (htab, 8);
4898 htab->relgot->size += sizeof (Elf32_External_Rela);
4901 htab->tlsld_got.offset = (bfd_vma) -1;
4903 /* Allocate space for global sym dynamic relocs. */
4904 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
4906 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
4908 unsigned int g_o_t = 32768;
4910 /* If we haven't allocated the header, do so now. When we get here,
4911 for old plt/got the got size will be 0 to 32764 (not allocated),
4912 or 32780 to 65536 (header allocated). For new plt/got, the
4913 corresponding ranges are 0 to 32768 and 32780 to 65536. */
4914 if (htab->got->size <= 32768)
4916 g_o_t = htab->got->size;
4917 if (htab->plt_type == PLT_OLD)
4919 htab->got->size += htab->got_header_size;
4922 htab->elf.hgot->root.u.def.value = g_o_t;
4925 if (htab->glink != NULL && htab->glink->size != 0)
4927 htab->glink_pltresolve = htab->glink->size;
4928 /* Space for the branch table. */
4929 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
4930 /* Pad out to align the start of PLTresolve. */
4931 htab->glink->size += -htab->glink->size & 15;
4932 htab->glink->size += GLINK_PLTRESOLVE;
4934 if (htab->emit_stub_syms)
4936 struct elf_link_hash_entry *sh;
4937 sh = elf_link_hash_lookup (&htab->elf, "__glink",
4938 TRUE, FALSE, FALSE);
4941 if (sh->root.type == bfd_link_hash_new)
4943 sh->root.type = bfd_link_hash_defined;
4944 sh->root.u.def.section = htab->glink;
4945 sh->root.u.def.value = htab->glink_pltresolve;
4946 sh->ref_regular = 1;
4947 sh->def_regular = 1;
4948 sh->ref_regular_nonweak = 1;
4949 sh->forced_local = 1;
4952 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
4953 TRUE, FALSE, FALSE);
4956 if (sh->root.type == bfd_link_hash_new)
4958 sh->root.type = bfd_link_hash_defined;
4959 sh->root.u.def.section = htab->glink;
4960 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
4961 sh->ref_regular = 1;
4962 sh->def_regular = 1;
4963 sh->ref_regular_nonweak = 1;
4964 sh->forced_local = 1;
4970 /* We've now determined the sizes of the various dynamic sections.
4971 Allocate memory for them. */
4973 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
4975 bfd_boolean strip_section = TRUE;
4977 if ((s->flags & SEC_LINKER_CREATED) == 0)
4983 || s == htab->sgotplt
4985 || s == htab->dynbss
4986 || s == htab->dynsbss)
4988 /* We'd like to strip these sections if they aren't needed, but if
4989 we've exported dynamic symbols from them we must leave them.
4990 It's too late to tell BFD to get rid of the symbols. */
4991 if ((s == htab->plt || s == htab->got) && htab->elf.hplt != NULL)
4992 strip_section = FALSE;
4993 /* Strip this section if we don't need it; see the
4996 else if (s == htab->sdata[0].section
4997 || s == htab->sdata[1].section)
4999 /* Strip these too. */
5001 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
5005 /* Remember whether there are any relocation sections. */
5008 /* We use the reloc_count field as a counter if we need
5009 to copy relocs into the output file. */
5015 /* It's not one of our sections, so don't allocate space. */
5019 if (s->size == 0 && strip_section)
5021 /* If we don't need this section, strip it from the
5022 output file. This is mostly to handle .rela.bss and
5023 .rela.plt. We must create both sections in
5024 create_dynamic_sections, because they must be created
5025 before the linker maps input sections to output
5026 sections. The linker does that before
5027 adjust_dynamic_symbol is called, and it is that
5028 function which decides whether anything needs to go
5029 into these sections. */
5030 s->flags |= SEC_EXCLUDE;
5034 if ((s->flags & SEC_HAS_CONTENTS) == 0)
5037 /* Allocate memory for the section contents. */
5038 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
5039 if (s->contents == NULL)
5043 if (htab->elf.dynamic_sections_created)
5045 /* Add some entries to the .dynamic section. We fill in the
5046 values later, in ppc_elf_finish_dynamic_sections, but we
5047 must add the entries now so that we get the correct size for
5048 the .dynamic section. The DT_DEBUG entry is filled in by the
5049 dynamic linker and used by the debugger. */
5050 #define add_dynamic_entry(TAG, VAL) \
5051 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
5053 if (info->executable)
5055 if (!add_dynamic_entry (DT_DEBUG, 0))
5059 if (htab->plt != NULL && htab->plt->size != 0)
5061 if (!add_dynamic_entry (DT_PLTGOT, 0)
5062 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5063 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5064 || !add_dynamic_entry (DT_JMPREL, 0))
5068 if (htab->glink != NULL && htab->glink->size != 0)
5070 if (!add_dynamic_entry (DT_PPC_GOT, 0))
5076 if (!add_dynamic_entry (DT_RELA, 0)
5077 || !add_dynamic_entry (DT_RELASZ, 0)
5078 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
5082 /* If any dynamic relocs apply to a read-only section, then we
5083 need a DT_TEXTREL entry. */
5084 if ((info->flags & DF_TEXTREL) == 0)
5085 elf_link_hash_traverse (elf_hash_table (info), readonly_dynrelocs,
5088 if ((info->flags & DF_TEXTREL) != 0)
5090 if (!add_dynamic_entry (DT_TEXTREL, 0))
5094 #undef add_dynamic_entry
5099 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
5101 static const int shared_stub_entry[] =
5103 0x7c0802a6, /* mflr 0 */
5104 0x429f0005, /* bcl 20, 31, .Lxxx */
5105 0x7d6802a6, /* mflr 11 */
5106 0x3d6b0000, /* addis 11, 11, (xxx-.Lxxx)@ha */
5107 0x396b0018, /* addi 11, 11, (xxx-.Lxxx)@l */
5108 0x7c0803a6, /* mtlr 0 */
5109 0x7d6903a6, /* mtctr 11 */
5110 0x4e800420, /* bctr */
5113 static const int stub_entry[] =
5115 0x3d600000, /* lis 11,xxx@ha */
5116 0x396b0000, /* addi 11,11,xxx@l */
5117 0x7d6903a6, /* mtctr 11 */
5118 0x4e800420, /* bctr */
5122 ppc_elf_relax_section (bfd *abfd,
5124 struct bfd_link_info *link_info,
5129 struct one_fixup *next;
5135 Elf_Internal_Shdr *symtab_hdr;
5136 bfd_byte *contents = NULL;
5137 Elf_Internal_Sym *isymbuf = NULL;
5138 Elf_Internal_Rela *internal_relocs = NULL;
5139 Elf_Internal_Rela *irel, *irelend;
5140 struct one_fixup *fixups = NULL;
5141 bfd_boolean changed;
5142 struct ppc_elf_link_hash_table *htab;
5143 bfd_size_type trampoff;
5148 /* Nothing to do if there are no relocations, and no need to do
5149 anything with non-alloc sections. */
5150 if ((isec->flags & SEC_ALLOC) == 0
5151 || (isec->flags & SEC_RELOC) == 0
5152 || isec->reloc_count == 0)
5155 trampoff = (isec->size + 3) & (bfd_vma) -4;
5156 /* Space for a branch around any trampolines. */
5159 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5161 /* Get a copy of the native relocations. */
5162 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
5163 link_info->keep_memory);
5164 if (internal_relocs == NULL)
5167 htab = ppc_elf_hash_table (link_info);
5168 got2 = bfd_get_section_by_name (abfd, ".got2");
5170 irelend = internal_relocs + isec->reloc_count;
5171 for (irel = internal_relocs; irel < irelend; irel++)
5173 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
5174 bfd_vma symaddr, reladdr, toff, roff;
5176 struct one_fixup *f;
5177 size_t insn_offset = 0;
5178 bfd_vma max_branch_offset, val;
5181 unsigned char sym_type;
5186 case R_PPC_LOCAL24PC:
5187 case R_PPC_PLTREL24:
5188 max_branch_offset = 1 << 25;
5192 case R_PPC_REL14_BRTAKEN:
5193 case R_PPC_REL14_BRNTAKEN:
5194 max_branch_offset = 1 << 15;
5201 /* Get the value of the symbol referred to by the reloc. */
5202 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
5204 /* A local symbol. */
5205 Elf_Internal_Sym *isym;
5207 /* Read this BFD's local symbols. */
5208 if (isymbuf == NULL)
5210 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5211 if (isymbuf == NULL)
5212 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
5213 symtab_hdr->sh_info, 0,
5218 isym = isymbuf + ELF32_R_SYM (irel->r_info);
5219 if (isym->st_shndx == SHN_UNDEF)
5220 continue; /* We can't do anything with undefined symbols. */
5221 else if (isym->st_shndx == SHN_ABS)
5222 tsec = bfd_abs_section_ptr;
5223 else if (isym->st_shndx == SHN_COMMON)
5224 tsec = bfd_com_section_ptr;
5226 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
5228 toff = isym->st_value;
5229 sym_type = ELF_ST_TYPE (isym->st_info);
5233 /* Global symbol handling. */
5235 struct elf_link_hash_entry *h;
5237 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
5238 h = elf_sym_hashes (abfd)[indx];
5240 while (h->root.type == bfd_link_hash_indirect
5241 || h->root.type == bfd_link_hash_warning)
5242 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5246 if (r_type == R_PPC_PLTREL24
5247 && htab->plt != NULL)
5249 struct plt_entry *ent = find_plt_ent (h, got2, irel->r_addend);
5253 if (htab->plt_type == PLT_NEW)
5256 toff = ent->glink_offset;
5261 toff = ent->plt.offset;
5267 else if (h->root.type == bfd_link_hash_defined
5268 || h->root.type == bfd_link_hash_defweak)
5270 tsec = h->root.u.def.section;
5271 toff = h->root.u.def.value;
5279 /* If the branch and target are in the same section, you have
5280 no hope of adding stubs. We'll error out later should the
5285 /* There probably isn't any reason to handle symbols in
5286 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
5287 attribute for a code section, and we are only looking at
5288 branches. However, implement it correctly here as a
5289 reference for other target relax_section functions. */
5290 if (0 && tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
5292 /* At this stage in linking, no SEC_MERGE symbol has been
5293 adjusted, so all references to such symbols need to be
5294 passed through _bfd_merged_section_offset. (Later, in
5295 relocate_section, all SEC_MERGE symbols *except* for
5296 section symbols have been adjusted.)
5298 gas may reduce relocations against symbols in SEC_MERGE
5299 sections to a relocation against the section symbol when
5300 the original addend was zero. When the reloc is against
5301 a section symbol we should include the addend in the
5302 offset passed to _bfd_merged_section_offset, since the
5303 location of interest is the original symbol. On the
5304 other hand, an access to "sym+addend" where "sym" is not
5305 a section symbol should not include the addend; Such an
5306 access is presumed to be an offset from "sym"; The
5307 location of interest is just "sym". */
5308 if (sym_type == STT_SECTION)
5309 toff += irel->r_addend;
5311 toff = _bfd_merged_section_offset (abfd, &tsec,
5312 elf_section_data (tsec)->sec_info,
5315 if (sym_type != STT_SECTION)
5316 toff += irel->r_addend;
5318 /* PLTREL24 addends are special. */
5319 else if (r_type != R_PPC_PLTREL24)
5320 toff += irel->r_addend;
5322 /* Attempted -shared link of non-pic code loses. */
5323 if (tsec->output_section == NULL)
5326 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
5328 roff = irel->r_offset;
5329 reladdr = isec->output_section->vma + isec->output_offset + roff;
5331 /* If the branch is in range, no need to do anything. */
5332 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
5335 /* Look for an existing fixup to this address. */
5336 for (f = fixups; f ; f = f->next)
5337 if (f->tsec == tsec && f->toff == toff)
5343 unsigned long stub_rtype;
5345 val = trampoff - roff;
5346 if (val >= max_branch_offset)
5347 /* Oh dear, we can't reach a trampoline. Don't try to add
5348 one. We'll report an error later. */
5351 if (link_info->shared)
5353 size = 4 * ARRAY_SIZE (shared_stub_entry);
5355 stub_rtype = R_PPC_RELAX32PC;
5359 size = 4 * ARRAY_SIZE (stub_entry);
5361 stub_rtype = R_PPC_RELAX32;
5364 if (R_PPC_RELAX32_PLT - R_PPC_RELAX32
5365 != R_PPC_RELAX32PC_PLT - R_PPC_RELAX32PC)
5367 if (tsec == htab->plt
5368 || tsec == htab->glink)
5369 stub_rtype += R_PPC_RELAX32_PLT - R_PPC_RELAX32;
5371 /* Hijack the old relocation. Since we need two
5372 relocations for this use a "composite" reloc. */
5373 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
5375 irel->r_offset = trampoff + insn_offset;
5377 /* Record the fixup so we don't do it again this section. */
5378 f = bfd_malloc (sizeof (*f));
5382 f->trampoff = trampoff;
5389 val = f->trampoff - roff;
5390 if (val >= max_branch_offset)
5393 /* Nop out the reloc, since we're finalizing things here. */
5394 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
5397 /* Get the section contents. */
5398 if (contents == NULL)
5400 /* Get cached copy if it exists. */
5401 if (elf_section_data (isec)->this_hdr.contents != NULL)
5402 contents = elf_section_data (isec)->this_hdr.contents;
5405 /* Go get them off disk. */
5406 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
5411 /* Fix up the existing branch to hit the trampoline. */
5412 hit_addr = contents + roff;
5416 case R_PPC_LOCAL24PC:
5417 case R_PPC_PLTREL24:
5418 t0 = bfd_get_32 (abfd, hit_addr);
5420 t0 |= val & 0x3fffffc;
5421 bfd_put_32 (abfd, t0, hit_addr);
5425 case R_PPC_REL14_BRTAKEN:
5426 case R_PPC_REL14_BRNTAKEN:
5427 t0 = bfd_get_32 (abfd, hit_addr);
5430 bfd_put_32 (abfd, t0, hit_addr);
5435 /* Write out the trampolines. */
5436 changed = fixups != NULL;
5446 struct one_fixup *f = fixups;
5447 fixups = fixups->next;
5452 contents = bfd_realloc (contents, trampoff);
5453 if (contents == NULL)
5456 isec->size = (isec->size + 3) & (bfd_vma) -4;
5457 /* Branch around the trampolines. */
5458 val = trampoff - isec->size + 0x48000000;
5459 dest = contents + isec->size;
5460 isec->size = trampoff;
5461 bfd_put_32 (abfd, val, dest);
5464 if (link_info->shared)
5466 stub = shared_stub_entry;
5467 size = ARRAY_SIZE (shared_stub_entry);
5472 size = ARRAY_SIZE (stub_entry);
5476 while (dest < contents + trampoff)
5478 bfd_put_32 (abfd, stub[i], dest);
5484 BFD_ASSERT (i == 0);
5488 && symtab_hdr->contents != (unsigned char *) isymbuf)
5490 if (! link_info->keep_memory)
5494 /* Cache the symbols for elf_link_input_bfd. */
5495 symtab_hdr->contents = (unsigned char *) isymbuf;
5499 if (contents != NULL
5500 && elf_section_data (isec)->this_hdr.contents != contents)
5502 if (!changed && !link_info->keep_memory)
5506 /* Cache the section contents for elf_link_input_bfd. */
5507 elf_section_data (isec)->this_hdr.contents = contents;
5511 if (elf_section_data (isec)->relocs != internal_relocs)
5514 free (internal_relocs);
5516 elf_section_data (isec)->relocs = internal_relocs;
5523 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
5525 if (contents != NULL
5526 && elf_section_data (isec)->this_hdr.contents != contents)
5528 if (internal_relocs != NULL
5529 && elf_section_data (isec)->relocs != internal_relocs)
5530 free (internal_relocs);
5534 /* What to do when ld finds relocations against symbols defined in
5535 discarded sections. */
5538 ppc_elf_action_discarded (asection *sec)
5540 if (strcmp (".fixup", sec->name) == 0)
5543 if (strcmp (".got2", sec->name) == 0)
5546 return _bfd_elf_default_action_discarded (sec);
5549 /* Fill in the address for a pointer generated in a linker section. */
5552 elf_finish_pointer_linker_section (bfd *input_bfd,
5553 elf_linker_section_t *lsect,
5554 struct elf_link_hash_entry *h,
5556 const Elf_Internal_Rela *rel)
5558 elf_linker_section_pointers_t *linker_section_ptr;
5560 BFD_ASSERT (lsect != NULL);
5564 /* Handle global symbol. */
5565 struct ppc_elf_link_hash_entry *eh;
5567 eh = (struct ppc_elf_link_hash_entry *) h;
5568 BFD_ASSERT (eh->elf.def_regular);
5569 linker_section_ptr = eh->linker_section_pointer;
5573 /* Handle local symbol. */
5574 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
5576 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
5577 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
5580 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
5583 BFD_ASSERT (linker_section_ptr != NULL);
5585 /* Offset will always be a multiple of four, so use the bottom bit
5586 as a "written" flag. */
5587 if ((linker_section_ptr->offset & 1) == 0)
5589 bfd_put_32 (lsect->section->owner,
5590 relocation + linker_section_ptr->addend,
5591 lsect->section->contents + linker_section_ptr->offset);
5592 linker_section_ptr->offset += 1;
5595 relocation = (lsect->section->output_offset
5596 + linker_section_ptr->offset - 1
5601 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
5602 lsect->name, (long) relocation, (long) relocation);
5605 /* Subtract out the addend, because it will get added back in by the normal
5607 return relocation - linker_section_ptr->addend;
5610 /* The RELOCATE_SECTION function is called by the ELF backend linker
5611 to handle the relocations for a section.
5613 The relocs are always passed as Rela structures; if the section
5614 actually uses Rel structures, the r_addend field will always be
5617 This function is responsible for adjust the section contents as
5618 necessary, and (if using Rela relocs and generating a
5619 relocatable output file) adjusting the reloc addend as
5622 This function does not have to worry about setting the reloc
5623 address or the reloc symbol index.
5625 LOCAL_SYMS is a pointer to the swapped in local symbols.
5627 LOCAL_SECTIONS is an array giving the section in the input file
5628 corresponding to the st_shndx field of each local symbol.
5630 The global hash table entry for the global symbols can be found
5631 via elf_sym_hashes (input_bfd).
5633 When generating relocatable output, this function must handle
5634 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
5635 going to be the section symbol corresponding to the output
5636 section, which means that the addend must be adjusted
5640 ppc_elf_relocate_section (bfd *output_bfd,
5641 struct bfd_link_info *info,
5643 asection *input_section,
5645 Elf_Internal_Rela *relocs,
5646 Elf_Internal_Sym *local_syms,
5647 asection **local_sections)
5649 Elf_Internal_Shdr *symtab_hdr;
5650 struct elf_link_hash_entry **sym_hashes;
5651 struct ppc_elf_link_hash_table *htab;
5652 Elf_Internal_Rela *rel;
5653 Elf_Internal_Rela *relend;
5654 Elf_Internal_Rela outrel;
5656 asection *got2, *sreloc = NULL;
5657 bfd_vma *local_got_offsets;
5658 bfd_boolean ret = TRUE;
5659 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
5662 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
5663 "%ld relocations%s",
5664 input_bfd, input_section,
5665 (long) input_section->reloc_count,
5666 (info->relocatable) ? " (relocatable)" : "");
5669 got2 = bfd_get_section_by_name (input_bfd, ".got2");
5671 /* Initialize howto table if not already done. */
5672 if (!ppc_elf_howto_table[R_PPC_ADDR32])
5673 ppc_elf_howto_init ();
5675 htab = ppc_elf_hash_table (info);
5676 local_got_offsets = elf_local_got_offsets (input_bfd);
5677 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
5678 sym_hashes = elf_sym_hashes (input_bfd);
5680 relend = relocs + input_section->reloc_count;
5681 for (; rel < relend; rel++)
5683 enum elf_ppc_reloc_type r_type;
5685 bfd_reloc_status_type r;
5686 Elf_Internal_Sym *sym;
5688 struct elf_link_hash_entry *h;
5689 const char *sym_name;
5690 reloc_howto_type *howto;
5691 unsigned long r_symndx;
5693 bfd_vma branch_bit, insn, from;
5694 bfd_boolean unresolved_reloc;
5696 unsigned int tls_type, tls_mask, tls_gd;
5698 r_type = ELF32_R_TYPE (rel->r_info);
5702 unresolved_reloc = FALSE;
5704 r_symndx = ELF32_R_SYM (rel->r_info);
5706 if (r_symndx < symtab_hdr->sh_info)
5708 sym = local_syms + r_symndx;
5709 sec = local_sections[r_symndx];
5710 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
5712 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
5716 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
5717 r_symndx, symtab_hdr, sym_hashes,
5719 unresolved_reloc, warned);
5721 sym_name = h->root.root.string;
5724 if (sec != NULL && elf_discarded_section (sec))
5726 /* For relocs against symbols from removed linkonce sections,
5727 or sections discarded by a linker script, we just want the
5728 section contents zeroed. Avoid any special processing. */
5730 if (r_type < R_PPC_max)
5731 howto = ppc_elf_howto_table[r_type];
5732 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
5738 if (info->relocatable)
5741 && r_type == R_PPC_PLTREL24
5742 && rel->r_addend >= 32768)
5744 /* R_PPC_PLTREL24 is rather special. If non-zero, the
5745 addend specifies the GOT pointer offset within .got2. */
5746 rel->r_addend += got2->output_offset;
5751 /* TLS optimizations. Replace instruction sequences and relocs
5752 based on information we collected in tls_optimize. We edit
5753 RELOCS so that --emit-relocs will output something sensible
5754 for the final instruction stream. */
5757 if (IS_PPC_TLS_RELOC (r_type))
5760 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
5761 else if (local_got_offsets != NULL)
5764 lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info);
5765 tls_mask = lgot_masks[r_symndx];
5769 /* Ensure reloc mapping code below stays sane. */
5770 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
5771 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
5772 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
5773 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
5774 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
5775 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
5776 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
5777 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
5784 case R_PPC_GOT_TPREL16:
5785 case R_PPC_GOT_TPREL16_LO:
5787 && (tls_mask & TLS_TPREL) == 0)
5790 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
5792 insn |= 0x3c020000; /* addis 0,2,0 */
5793 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
5794 r_type = R_PPC_TPREL16_HA;
5795 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5801 && (tls_mask & TLS_TPREL) == 0)
5804 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
5805 if ((insn & ((31 << 26) | (31 << 11)))
5806 == ((31 << 26) | (2 << 11)))
5807 rtra = insn & ((1 << 26) - (1 << 16));
5808 else if ((insn & ((31 << 26) | (31 << 16)))
5809 == ((31 << 26) | (2 << 16)))
5810 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
5813 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
5816 else if ((insn & (31 << 1)) == 23 << 1
5817 && ((insn & (31 << 6)) < 14 << 6
5818 || ((insn & (31 << 6)) >= 16 << 6
5819 && (insn & (31 << 6)) < 24 << 6)))
5820 /* load and store indexed -> dform. */
5821 insn = (32 | ((insn >> 6) & 31)) << 26;
5822 else if ((insn & (31 << 1)) == 21 << 1
5823 && (insn & (0x1a << 6)) == 0)
5824 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
5825 insn = (((58 | ((insn >> 6) & 4)) << 26)
5826 | ((insn >> 6) & 1));
5827 else if ((insn & (31 << 1)) == 21 << 1
5828 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
5830 insn = (58 << 26) | 2;
5834 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5835 r_type = R_PPC_TPREL16_LO;
5836 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5838 /* Was PPC_TLS which sits on insn boundary, now
5839 PPC_TPREL16_LO which is at low-order half-word. */
5840 rel->r_offset += d_offset;
5844 case R_PPC_GOT_TLSGD16_HI:
5845 case R_PPC_GOT_TLSGD16_HA:
5846 tls_gd = TLS_TPRELGD;
5847 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
5851 case R_PPC_GOT_TLSLD16_HI:
5852 case R_PPC_GOT_TLSLD16_HA:
5853 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
5856 if ((tls_mask & tls_gd) != 0)
5857 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
5858 + R_PPC_GOT_TPREL16);
5861 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
5862 rel->r_offset -= d_offset;
5863 r_type = R_PPC_NONE;
5865 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5869 case R_PPC_GOT_TLSGD16:
5870 case R_PPC_GOT_TLSGD16_LO:
5871 tls_gd = TLS_TPRELGD;
5872 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
5873 goto tls_get_addr_check;
5876 case R_PPC_GOT_TLSLD16:
5877 case R_PPC_GOT_TLSLD16_LO:
5878 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
5881 if (rel + 1 < relend)
5883 enum elf_ppc_reloc_type r_type2;
5884 unsigned long r_symndx2;
5885 struct elf_link_hash_entry *h2;
5886 bfd_vma insn1, insn2;
5889 /* The next instruction should be a call to
5890 __tls_get_addr. Peek at the reloc to be sure. */
5891 r_type2 = ELF32_R_TYPE (rel[1].r_info);
5892 r_symndx2 = ELF32_R_SYM (rel[1].r_info);
5893 if (r_symndx2 < symtab_hdr->sh_info
5894 || (r_type2 != R_PPC_REL14
5895 && r_type2 != R_PPC_REL14_BRTAKEN
5896 && r_type2 != R_PPC_REL14_BRNTAKEN
5897 && r_type2 != R_PPC_REL24
5898 && r_type2 != R_PPC_PLTREL24))
5901 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
5902 while (h2->root.type == bfd_link_hash_indirect
5903 || h2->root.type == bfd_link_hash_warning)
5904 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
5905 if (h2 == NULL || h2 != htab->tls_get_addr)
5908 /* OK, it checks out. Replace the call. */
5909 offset = rel[1].r_offset;
5910 insn1 = bfd_get_32 (output_bfd,
5911 contents + rel->r_offset - d_offset);
5912 if ((tls_mask & tls_gd) != 0)
5915 insn1 &= (1 << 26) - 1;
5916 insn1 |= 32 << 26; /* lwz */
5917 insn2 = 0x7c631214; /* add 3,3,2 */
5918 rel[1].r_info = ELF32_R_INFO (r_symndx2, R_PPC_NONE);
5919 rel[1].r_addend = 0;
5920 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
5921 + R_PPC_GOT_TPREL16);
5922 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5927 insn1 = 0x3c620000; /* addis 3,2,0 */
5928 insn2 = 0x38630000; /* addi 3,3,0 */
5931 /* Was an LD reloc. */
5933 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
5935 r_type = R_PPC_TPREL16_HA;
5936 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5937 rel[1].r_info = ELF32_R_INFO (r_symndx,
5939 rel[1].r_offset += d_offset;
5940 rel[1].r_addend = rel->r_addend;
5942 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - d_offset);
5943 bfd_put_32 (output_bfd, insn2, contents + offset);
5946 /* We changed the symbol on an LD reloc. Start over
5947 in order to get h, sym, sec etc. right. */
5956 /* Handle other relocations that tweak non-addend part of insn. */
5963 /* Branch taken prediction relocations. */
5964 case R_PPC_ADDR14_BRTAKEN:
5965 case R_PPC_REL14_BRTAKEN:
5966 branch_bit = BRANCH_PREDICT_BIT;
5969 /* Branch not taken prediction relocations. */
5970 case R_PPC_ADDR14_BRNTAKEN:
5971 case R_PPC_REL14_BRNTAKEN:
5972 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
5973 insn &= ~BRANCH_PREDICT_BIT;
5976 from = (rel->r_offset
5977 + input_section->output_offset
5978 + input_section->output_section->vma);
5980 /* Invert 'y' bit if not the default. */
5981 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
5982 insn ^= BRANCH_PREDICT_BIT;
5984 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5988 addend = rel->r_addend;
5991 if (r_type < R_PPC_max)
5992 howto = ppc_elf_howto_table[r_type];
5996 (*_bfd_error_handler)
5997 (_("%B: unknown relocation type %d for symbol %s"),
5998 input_bfd, (int) r_type, sym_name);
6000 bfd_set_error (bfd_error_bad_value);
6006 case R_PPC_EMB_MRKREF:
6007 case R_PPC_GNU_VTINHERIT:
6008 case R_PPC_GNU_VTENTRY:
6011 /* GOT16 relocations. Like an ADDR16 using the symbol's
6012 address in the GOT as relocation value instead of the
6013 symbol's value itself. Also, create a GOT entry for the
6014 symbol and put the symbol value there. */
6015 case R_PPC_GOT_TLSGD16:
6016 case R_PPC_GOT_TLSGD16_LO:
6017 case R_PPC_GOT_TLSGD16_HI:
6018 case R_PPC_GOT_TLSGD16_HA:
6019 tls_type = TLS_TLS | TLS_GD;
6022 case R_PPC_GOT_TLSLD16:
6023 case R_PPC_GOT_TLSLD16_LO:
6024 case R_PPC_GOT_TLSLD16_HI:
6025 case R_PPC_GOT_TLSLD16_HA:
6026 tls_type = TLS_TLS | TLS_LD;
6029 case R_PPC_GOT_TPREL16:
6030 case R_PPC_GOT_TPREL16_LO:
6031 case R_PPC_GOT_TPREL16_HI:
6032 case R_PPC_GOT_TPREL16_HA:
6033 tls_type = TLS_TLS | TLS_TPREL;
6036 case R_PPC_GOT_DTPREL16:
6037 case R_PPC_GOT_DTPREL16_LO:
6038 case R_PPC_GOT_DTPREL16_HI:
6039 case R_PPC_GOT_DTPREL16_HA:
6040 tls_type = TLS_TLS | TLS_DTPREL;
6044 case R_PPC_GOT16_LO:
6045 case R_PPC_GOT16_HI:
6046 case R_PPC_GOT16_HA:
6049 /* Relocation is to the entry for this symbol in the global
6055 if (htab->got == NULL)
6059 if (tls_type == (TLS_TLS | TLS_LD)
6061 || !h->def_dynamic))
6062 offp = &htab->tlsld_got.offset;
6066 dyn = htab->elf.dynamic_sections_created;
6067 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
6069 && SYMBOL_REFERENCES_LOCAL (info, h)))
6070 /* This is actually a static link, or it is a
6071 -Bsymbolic link and the symbol is defined
6072 locally, or the symbol was forced to be local
6073 because of a version file. */
6078 unresolved_reloc = FALSE;
6080 offp = &h->got.offset;
6084 if (local_got_offsets == NULL)
6086 offp = &local_got_offsets[r_symndx];
6089 /* The offset must always be a multiple of 4. We use the
6090 least significant bit to record whether we have already
6091 processed this entry. */
6097 unsigned int tls_m = (tls_mask
6098 & (TLS_LD | TLS_GD | TLS_DTPREL
6099 | TLS_TPREL | TLS_TPRELGD));
6101 if (offp == &htab->tlsld_got.offset)
6107 /* We might have multiple got entries for this sym.
6108 Initialize them all. */
6113 if ((tls_m & TLS_LD) != 0)
6115 tls_ty = TLS_TLS | TLS_LD;
6118 else if ((tls_m & TLS_GD) != 0)
6120 tls_ty = TLS_TLS | TLS_GD;
6123 else if ((tls_m & TLS_DTPREL) != 0)
6125 tls_ty = TLS_TLS | TLS_DTPREL;
6126 tls_m &= ~TLS_DTPREL;
6128 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
6130 tls_ty = TLS_TLS | TLS_TPREL;
6134 /* Generate relocs for the dynamic linker. */
6135 if ((info->shared || indx != 0)
6137 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6138 || h->root.type != bfd_link_hash_undefweak))
6140 outrel.r_offset = (htab->got->output_section->vma
6141 + htab->got->output_offset
6143 outrel.r_addend = 0;
6144 if (tls_ty & (TLS_LD | TLS_GD))
6146 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
6147 if (tls_ty == (TLS_TLS | TLS_GD))
6149 loc = htab->relgot->contents;
6150 loc += (htab->relgot->reloc_count++
6151 * sizeof (Elf32_External_Rela));
6152 bfd_elf32_swap_reloca_out (output_bfd,
6154 outrel.r_offset += 4;
6156 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
6159 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
6160 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
6161 else if (tls_ty == (TLS_TLS | TLS_TPREL))
6162 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
6164 outrel.r_info = ELF32_R_INFO (indx, R_PPC_RELATIVE);
6166 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
6169 outrel.r_addend += relocation;
6170 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
6171 outrel.r_addend -= htab->elf.tls_sec->vma;
6173 loc = htab->relgot->contents;
6174 loc += (htab->relgot->reloc_count++
6175 * sizeof (Elf32_External_Rela));
6176 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
6179 /* Init the .got section contents if we're not
6180 emitting a reloc. */
6183 bfd_vma value = relocation;
6185 if (tls_ty == (TLS_TLS | TLS_LD))
6187 else if (tls_ty != 0)
6189 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
6190 if (tls_ty == (TLS_TLS | TLS_TPREL))
6191 value += DTP_OFFSET - TP_OFFSET;
6193 if (tls_ty == (TLS_TLS | TLS_GD))
6195 bfd_put_32 (output_bfd, value,
6196 htab->got->contents + off + 4);
6200 bfd_put_32 (output_bfd, value,
6201 htab->got->contents + off);
6205 if (tls_ty & (TLS_LD | TLS_GD))
6214 if (off >= (bfd_vma) -2)
6217 if ((tls_type & TLS_TLS) != 0)
6219 if (tls_type != (TLS_TLS | TLS_LD))
6221 if ((tls_mask & TLS_LD) != 0
6223 || !h->def_dynamic))
6225 if (tls_type != (TLS_TLS | TLS_GD))
6227 if ((tls_mask & TLS_GD) != 0)
6229 if (tls_type != (TLS_TLS | TLS_DTPREL))
6231 if ((tls_mask & TLS_DTPREL) != 0)
6238 relocation = htab->got->output_offset + off;
6239 relocation -= htab->elf.hgot->root.u.def.value;
6241 /* Addends on got relocations don't make much sense.
6242 x+off@got is actually x@got+off, and since the got is
6243 generated by a hash table traversal, the value in the
6244 got at entry m+n bears little relation to the entry m. */
6246 (*_bfd_error_handler)
6247 (_("%B(%A+0x%lx): non-zero addend on %s reloc against `%s'"),
6250 (long) rel->r_offset,
6256 /* Relocations that need no special processing. */
6257 case R_PPC_LOCAL24PC:
6258 /* It makes no sense to point a local relocation
6259 at a symbol not in this object. */
6260 if (unresolved_reloc)
6262 if (! (*info->callbacks->undefined_symbol) (info,
6263 h->root.root.string,
6273 case R_PPC_DTPREL16:
6274 case R_PPC_DTPREL16_LO:
6275 case R_PPC_DTPREL16_HI:
6276 case R_PPC_DTPREL16_HA:
6277 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
6280 /* Relocations that may need to be propagated if this is a shared
6283 case R_PPC_TPREL16_LO:
6284 case R_PPC_TPREL16_HI:
6285 case R_PPC_TPREL16_HA:
6286 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
6287 /* The TPREL16 relocs shouldn't really be used in shared
6288 libs as they will result in DT_TEXTREL being set, but
6289 support them anyway. */
6293 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
6296 case R_PPC_DTPREL32:
6297 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
6300 case R_PPC_DTPMOD32:
6306 case R_PPC_REL16_LO:
6307 case R_PPC_REL16_HI:
6308 case R_PPC_REL16_HA:
6314 case R_PPC_REL14_BRTAKEN:
6315 case R_PPC_REL14_BRNTAKEN:
6316 /* If these relocations are not to a named symbol, they can be
6317 handled right here, no need to bother the dynamic linker. */
6318 if (SYMBOL_REFERENCES_LOCAL (info, h)
6319 || h == htab->elf.hgot)
6323 /* Relocations that always need to be propagated if this is a shared
6328 case R_PPC_ADDR16_LO:
6329 case R_PPC_ADDR16_HI:
6330 case R_PPC_ADDR16_HA:
6332 case R_PPC_ADDR14_BRTAKEN:
6333 case R_PPC_ADDR14_BRNTAKEN:
6337 if ((input_section->flags & SEC_ALLOC) == 0)
6343 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6344 || h->root.type != bfd_link_hash_undefweak)
6345 && (MUST_BE_DYN_RELOC (r_type)
6346 || !SYMBOL_CALLS_LOCAL (info, h)))
6347 || (ELIMINATE_COPY_RELOCS
6353 && !h->def_regular))
6358 fprintf (stderr, "ppc_elf_relocate_section needs to "
6359 "create relocation for %s\n",
6360 (h && h->root.root.string
6361 ? h->root.root.string : "<unknown>"));
6364 /* When generating a shared object, these relocations
6365 are copied into the output file to be resolved at run
6371 name = (bfd_elf_string_from_elf_section
6373 elf_elfheader (input_bfd)->e_shstrndx,
6374 elf_section_data (input_section)->rel_hdr.sh_name));
6378 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
6379 && strcmp (bfd_get_section_name (input_bfd,
6383 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
6384 BFD_ASSERT (sreloc != NULL);
6390 _bfd_elf_section_offset (output_bfd, info, input_section,
6392 if (outrel.r_offset == (bfd_vma) -1
6393 || outrel.r_offset == (bfd_vma) -2)
6394 skip = (int) outrel.r_offset;
6395 outrel.r_offset += (input_section->output_section->vma
6396 + input_section->output_offset);
6399 memset (&outrel, 0, sizeof outrel);
6400 else if (!SYMBOL_REFERENCES_LOCAL (info, h))
6402 unresolved_reloc = FALSE;
6403 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
6404 outrel.r_addend = rel->r_addend;
6408 outrel.r_addend = relocation + rel->r_addend;
6410 if (r_type == R_PPC_ADDR32)
6411 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
6416 if (bfd_is_abs_section (sec))
6418 else if (sec == NULL || sec->owner == NULL)
6420 bfd_set_error (bfd_error_bad_value);
6427 /* We are turning this relocation into one
6428 against a section symbol. It would be
6429 proper to subtract the symbol's value,
6430 osec->vma, from the emitted reloc addend,
6431 but ld.so expects buggy relocs. */
6432 osec = sec->output_section;
6433 indx = elf_section_data (osec)->dynindx;
6436 osec = htab->elf.text_index_section;
6437 indx = elf_section_data (osec)->dynindx;
6439 BFD_ASSERT (indx != 0);
6442 printf ("indx=%ld section=%s flags=%08x name=%s\n",
6443 indx, osec->name, osec->flags,
6444 h->root.root.string);
6448 outrel.r_info = ELF32_R_INFO (indx, r_type);
6452 loc = sreloc->contents;
6453 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
6454 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
6459 /* This reloc will be computed at runtime. We clear the memory
6460 so that it contains predictable value. */
6462 && ((input_section->flags & SEC_ALLOC) != 0
6463 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
6465 relocation = howto->pc_relative ? outrel.r_offset : 0;
6472 case R_PPC_RELAX32PC_PLT:
6473 case R_PPC_RELAX32_PLT:
6475 struct plt_entry *ent = find_plt_ent (h, got2, addend);
6477 if (htab->plt_type == PLT_NEW)
6478 relocation = (htab->glink->output_section->vma
6479 + htab->glink->output_offset
6480 + ent->glink_offset);
6482 relocation = (htab->plt->output_section->vma
6483 + htab->plt->output_offset
6487 if (r_type == R_PPC_RELAX32_PLT)
6491 case R_PPC_RELAX32PC:
6492 relocation -= (input_section->output_section->vma
6493 + input_section->output_offset
6494 + rel->r_offset - 4);
6503 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
6504 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
6506 /* We're clearing the bits for R_PPC_ADDR16_HA
6507 and R_PPC_ADDR16_LO here. */
6511 /* t0 is HA, t1 is LO */
6512 relocation += addend;
6513 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
6514 t1 |= relocation & 0xffff;
6516 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
6517 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
6521 /* Indirect .sdata relocation. */
6522 case R_PPC_EMB_SDAI16:
6523 BFD_ASSERT (htab->sdata[0].section != NULL);
6525 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
6526 h, relocation, rel);
6529 /* Indirect .sdata2 relocation. */
6530 case R_PPC_EMB_SDA2I16:
6531 BFD_ASSERT (htab->sdata[1].section != NULL);
6533 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
6534 h, relocation, rel);
6537 /* Handle the TOC16 reloc. We want to use the offset within the .got
6538 section, not the actual VMA. This is appropriate when generating
6539 an embedded ELF object, for which the .got section acts like the
6540 AIX .toc section. */
6541 case R_PPC_TOC16: /* phony GOT16 relocations */
6542 BFD_ASSERT (sec != NULL);
6543 BFD_ASSERT (bfd_is_und_section (sec)
6544 || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
6545 || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
6547 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
6550 case R_PPC_PLTREL24:
6551 /* Relocation is to the entry for this symbol in the
6552 procedure linkage table. */
6554 struct plt_entry *ent = find_plt_ent (h, got2, addend);
6558 || htab->plt == NULL)
6560 /* We didn't make a PLT entry for this symbol. This
6561 happens when statically linking PIC code, or when
6562 using -Bsymbolic. */
6566 unresolved_reloc = FALSE;
6567 if (htab->plt_type == PLT_NEW)
6568 relocation = (htab->glink->output_section->vma
6569 + htab->glink->output_offset
6570 + ent->glink_offset);
6572 relocation = (htab->plt->output_section->vma
6573 + htab->plt->output_offset
6578 /* Relocate against _SDA_BASE_. */
6579 case R_PPC_SDAREL16:
6582 struct elf_link_hash_entry *sh;
6584 BFD_ASSERT (sec != NULL);
6585 name = bfd_get_section_name (abfd, sec->output_section);
6586 if (! ((CONST_STRNEQ (name, ".sdata")
6587 && (name[6] == 0 || name[6] == '.'))
6588 || (CONST_STRNEQ (name, ".sbss")
6589 && (name[5] == 0 || name[5] == '.'))))
6591 (*_bfd_error_handler)
6592 (_("%B: the target (%s) of a %s relocation is "
6593 "in the wrong output section (%s)"),
6599 sh = htab->sdata[0].sym;
6600 addend -= (sh->root.u.def.value
6601 + sh->root.u.def.section->output_offset
6602 + sh->root.u.def.section->output_section->vma);
6606 /* Relocate against _SDA2_BASE_. */
6607 case R_PPC_EMB_SDA2REL:
6610 struct elf_link_hash_entry *sh;
6612 BFD_ASSERT (sec != NULL);
6613 name = bfd_get_section_name (abfd, sec->output_section);
6614 if (! (CONST_STRNEQ (name, ".sdata2")
6615 || CONST_STRNEQ (name, ".sbss2")))
6617 (*_bfd_error_handler)
6618 (_("%B: the target (%s) of a %s relocation is "
6619 "in the wrong output section (%s)"),
6625 bfd_set_error (bfd_error_bad_value);
6629 sh = htab->sdata[1].sym;
6630 addend -= (sh->root.u.def.value
6631 + sh->root.u.def.section->output_offset
6632 + sh->root.u.def.section->output_section->vma);
6636 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
6637 case R_PPC_EMB_SDA21:
6638 case R_PPC_EMB_RELSDA:
6642 struct elf_link_hash_entry *sh;
6644 BFD_ASSERT (sec != NULL);
6645 name = bfd_get_section_name (abfd, sec->output_section);
6646 if (((CONST_STRNEQ (name, ".sdata")
6647 && (name[6] == 0 || name[6] == '.'))
6648 || (CONST_STRNEQ (name, ".sbss")
6649 && (name[5] == 0 || name[5] == '.'))))
6652 sh = htab->sdata[0].sym;
6653 addend -= (sh->root.u.def.value
6654 + sh->root.u.def.section->output_offset
6655 + sh->root.u.def.section->output_section->vma);
6658 else if (CONST_STRNEQ (name, ".sdata2")
6659 || CONST_STRNEQ (name, ".sbss2"))
6662 sh = htab->sdata[1].sym;
6663 addend -= (sh->root.u.def.value
6664 + sh->root.u.def.section->output_offset
6665 + sh->root.u.def.section->output_section->vma);
6668 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
6669 || strcmp (name, ".PPC.EMB.sbss0") == 0)
6676 (*_bfd_error_handler)
6677 (_("%B: the target (%s) of a %s relocation is "
6678 "in the wrong output section (%s)"),
6684 bfd_set_error (bfd_error_bad_value);
6689 if (r_type == R_PPC_EMB_SDA21)
6690 { /* fill in register field */
6691 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
6692 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
6693 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
6698 /* Relocate against the beginning of the section. */
6700 case R_PPC_SECTOFF_LO:
6701 case R_PPC_SECTOFF_HI:
6702 case R_PPC_SECTOFF_HA:
6703 BFD_ASSERT (sec != NULL);
6704 addend -= sec->output_section->vma;
6707 /* Negative relocations. */
6708 case R_PPC_EMB_NADDR32:
6709 case R_PPC_EMB_NADDR16:
6710 case R_PPC_EMB_NADDR16_LO:
6711 case R_PPC_EMB_NADDR16_HI:
6712 case R_PPC_EMB_NADDR16_HA:
6713 addend -= 2 * relocation;
6717 case R_PPC_GLOB_DAT:
6718 case R_PPC_JMP_SLOT:
6719 case R_PPC_RELATIVE:
6721 case R_PPC_PLTREL32:
6722 case R_PPC_PLT16_LO:
6723 case R_PPC_PLT16_HI:
6724 case R_PPC_PLT16_HA:
6726 case R_PPC_EMB_RELSEC16:
6727 case R_PPC_EMB_RELST_LO:
6728 case R_PPC_EMB_RELST_HI:
6729 case R_PPC_EMB_RELST_HA:
6730 case R_PPC_EMB_BIT_FLD:
6731 (*_bfd_error_handler)
6732 (_("%B: relocation %s is not yet supported for symbol %s."),
6737 bfd_set_error (bfd_error_invalid_operation);
6742 /* Do any further special processing. */
6748 case R_PPC_ADDR16_HA:
6749 case R_PPC_REL16_HA:
6750 case R_PPC_SECTOFF_HA:
6751 case R_PPC_TPREL16_HA:
6752 case R_PPC_DTPREL16_HA:
6753 case R_PPC_EMB_NADDR16_HA:
6754 case R_PPC_EMB_RELST_HA:
6755 /* It's just possible that this symbol is a weak symbol
6756 that's not actually defined anywhere. In that case,
6757 'sec' would be NULL, and we should leave the symbol
6758 alone (it will be set to zero elsewhere in the link). */
6763 case R_PPC_PLT16_HA:
6764 case R_PPC_GOT16_HA:
6765 case R_PPC_GOT_TLSGD16_HA:
6766 case R_PPC_GOT_TLSLD16_HA:
6767 case R_PPC_GOT_TPREL16_HA:
6768 case R_PPC_GOT_DTPREL16_HA:
6769 /* Add 0x10000 if sign bit in 0:15 is set.
6770 Bits 0:15 are not used. */
6776 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
6777 "offset = %ld, addend = %ld\n",
6782 (long) rel->r_offset,
6786 if (unresolved_reloc
6787 && !((input_section->flags & SEC_DEBUGGING) != 0
6790 (*_bfd_error_handler)
6791 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
6794 (long) rel->r_offset,
6800 r = _bfd_final_link_relocate (howto,
6808 if (r != bfd_reloc_ok)
6810 if (r == bfd_reloc_overflow)
6815 && h->root.type == bfd_link_hash_undefweak
6816 && howto->pc_relative)
6818 /* Assume this is a call protected by other code that
6819 detect the symbol is undefined. If this is the case,
6820 we can safely ignore the overflow. If not, the
6821 program is hosed anyway, and a little warning isn't
6827 if (! (*info->callbacks->reloc_overflow) (info,
6828 (h ? &h->root : NULL),
6839 (*_bfd_error_handler)
6840 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
6841 input_bfd, input_section,
6842 (long) rel->r_offset, howto->name, sym_name, (int) r);
6849 fprintf (stderr, "\n");
6855 #define PPC_LO(v) ((v) & 0xffff)
6856 #define PPC_HI(v) (((v) >> 16) & 0xffff)
6857 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
6859 /* Finish up dynamic symbol handling. We set the contents of various
6860 dynamic sections here. */
6863 ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
6864 struct bfd_link_info *info,
6865 struct elf_link_hash_entry *h,
6866 Elf_Internal_Sym *sym)
6868 struct ppc_elf_link_hash_table *htab;
6869 struct plt_entry *ent;
6870 bfd_boolean doneone;
6873 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
6874 h->root.root.string);
6877 htab = ppc_elf_hash_table (info);
6878 BFD_ASSERT (htab->elf.dynobj != NULL);
6881 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6882 if (ent->plt.offset != (bfd_vma) -1)
6886 Elf_Internal_Rela rela;
6888 bfd_vma reloc_index;
6890 if (htab->plt_type == PLT_NEW)
6891 reloc_index = ent->plt.offset / 4;
6894 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
6895 / htab->plt_slot_size);
6896 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
6897 && htab->plt_type == PLT_OLD)
6898 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
6901 /* This symbol has an entry in the procedure linkage table.
6903 if (htab->plt_type == PLT_VXWORKS)
6906 const bfd_vma *plt_entry;
6908 /* The first three entries in .got.plt are reserved. */
6909 got_offset = (reloc_index + 3) * 4;
6911 /* Use the right PLT. */
6912 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
6913 : ppc_elf_vxworks_plt_entry;
6915 /* Fill in the .plt on VxWorks. */
6918 bfd_vma got_offset_hi = (got_offset >> 16)
6919 + ((got_offset & 0x8000) >> 15);
6921 bfd_put_32 (output_bfd,
6922 plt_entry[0] | (got_offset_hi & 0xffff),
6923 htab->plt->contents + ent->plt.offset + 0);
6924 bfd_put_32 (output_bfd,
6925 plt_entry[1] | (got_offset & 0xffff),
6926 htab->plt->contents + ent->plt.offset + 4);
6932 + htab->elf.hgot->root.u.def.value
6933 + htab->elf.hgot->root.u.def.section->output_offset
6934 + htab->elf.hgot->root.u.def.section->output_section->vma);
6935 bfd_vma got_loc_hi = (got_loc >> 16)
6936 + ((got_loc & 0x8000) >> 15);
6938 bfd_put_32 (output_bfd,
6939 plt_entry[0] | (got_loc_hi & 0xffff),
6940 htab->plt->contents + ent->plt.offset + 0);
6941 bfd_put_32 (output_bfd,
6942 plt_entry[1] | (got_loc & 0xffff),
6943 htab->plt->contents + ent->plt.offset + 4);
6946 bfd_put_32 (output_bfd, plt_entry[2],
6947 htab->plt->contents + ent->plt.offset + 8);
6948 bfd_put_32 (output_bfd, plt_entry[3],
6949 htab->plt->contents + ent->plt.offset + 12);
6951 /* This instruction is an immediate load. The value loaded is
6952 the byte offset of the R_PPC_JMP_SLOT relocation from the
6953 start of the .rela.plt section. The value is stored in the
6954 low-order 16 bits of the load instruction. */
6955 /* NOTE: It appears that this is now an index rather than a
6956 prescaled offset. */
6957 bfd_put_32 (output_bfd,
6958 plt_entry[4] | reloc_index,
6959 htab->plt->contents + ent->plt.offset + 16);
6960 /* This instruction is a PC-relative branch whose target is
6961 the start of the PLT section. The address of this branch
6962 instruction is 20 bytes beyond the start of this PLT entry.
6963 The address is encoded in bits 6-29, inclusive. The value
6964 stored is right-shifted by two bits, permitting a 26-bit
6966 bfd_put_32 (output_bfd,
6968 | (-(ent->plt.offset + 20) & 0x03fffffc)),
6969 htab->plt->contents + ent->plt.offset + 20);
6970 bfd_put_32 (output_bfd, plt_entry[6],
6971 htab->plt->contents + ent->plt.offset + 24);
6972 bfd_put_32 (output_bfd, plt_entry[7],
6973 htab->plt->contents + ent->plt.offset + 28);
6975 /* Fill in the GOT entry corresponding to this PLT slot with
6976 the address immediately after the the "bctr" instruction
6977 in this PLT entry. */
6978 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
6979 + htab->plt->output_offset
6980 + ent->plt.offset + 16),
6981 htab->sgotplt->contents + got_offset);
6985 /* Fill in a couple of entries in .rela.plt.unloaded. */
6986 loc = htab->srelplt2->contents
6987 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
6988 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
6989 * sizeof (Elf32_External_Rela));
6991 /* Provide the @ha relocation for the first instruction. */
6992 rela.r_offset = (htab->plt->output_section->vma
6993 + htab->plt->output_offset
6994 + ent->plt.offset + 2);
6995 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
6997 rela.r_addend = got_offset;
6998 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
6999 loc += sizeof (Elf32_External_Rela);
7001 /* Provide the @l relocation for the second instruction. */
7002 rela.r_offset = (htab->plt->output_section->vma
7003 + htab->plt->output_offset
7004 + ent->plt.offset + 6);
7005 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
7007 rela.r_addend = got_offset;
7008 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7009 loc += sizeof (Elf32_External_Rela);
7011 /* Provide a relocation for the GOT entry corresponding to this
7012 PLT slot. Point it at the middle of the .plt entry. */
7013 rela.r_offset = (htab->sgotplt->output_section->vma
7014 + htab->sgotplt->output_offset
7016 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
7018 rela.r_addend = ent->plt.offset + 16;
7019 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7022 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
7023 In particular, the offset for the relocation is not the
7024 address of the PLT entry for this function, as specified
7025 by the ABI. Instead, the offset is set to the address of
7026 the GOT slot for this function. See EABI 4.4.4.1. */
7027 rela.r_offset = (htab->sgotplt->output_section->vma
7028 + htab->sgotplt->output_offset
7034 rela.r_offset = (htab->plt->output_section->vma
7035 + htab->plt->output_offset
7037 if (htab->plt_type == PLT_OLD)
7039 /* We don't need to fill in the .plt. The ppc dynamic
7040 linker will fill it in. */
7044 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
7045 + htab->glink->output_section->vma
7046 + htab->glink->output_offset);
7047 bfd_put_32 (output_bfd, val,
7048 htab->plt->contents + ent->plt.offset);
7052 /* Fill in the entry in the .rela.plt section. */
7053 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
7056 loc = (htab->relplt->contents
7057 + reloc_index * sizeof (Elf32_External_Rela));
7058 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7060 if (!h->def_regular)
7062 /* Mark the symbol as undefined, rather than as defined in
7063 the .plt section. Leave the value alone. */
7064 sym->st_shndx = SHN_UNDEF;
7065 /* If the symbol is weak, we do need to clear the value.
7066 Otherwise, the PLT entry would provide a definition for
7067 the symbol even if the symbol wasn't defined anywhere,
7068 and so the symbol would never be NULL. */
7069 if (!h->ref_regular_nonweak)
7075 if (htab->plt_type == PLT_NEW)
7080 plt = (ent->plt.offset
7081 + htab->plt->output_section->vma
7082 + htab->plt->output_offset);
7083 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
7085 if (info->shared || info->pie)
7089 if (ent->addend >= 32768)
7091 + ent->sec->output_section->vma
7092 + ent->sec->output_offset);
7093 else if (htab->elf.hgot != NULL)
7094 got = (htab->elf.hgot->root.u.def.value
7095 + htab->elf.hgot->root.u.def.section->output_section->vma
7096 + htab->elf.hgot->root.u.def.section->output_offset);
7100 if (plt + 0x8000 < 0x10000)
7102 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7104 bfd_put_32 (output_bfd, MTCTR_11, p);
7106 bfd_put_32 (output_bfd, BCTR, p);
7108 bfd_put_32 (output_bfd, NOP, p);
7113 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7115 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7117 bfd_put_32 (output_bfd, MTCTR_11, p);
7119 bfd_put_32 (output_bfd, BCTR, p);
7125 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7127 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7129 bfd_put_32 (output_bfd, MTCTR_11, p);
7131 bfd_put_32 (output_bfd, BCTR, p);
7134 /* We only need one non-PIC glink stub. */
7145 Elf_Internal_Rela rela;
7148 /* This symbols needs a copy reloc. Set it up. */
7151 fprintf (stderr, ", copy");
7154 BFD_ASSERT (h->dynindx != -1);
7156 if (ppc_elf_hash_entry (h)->has_sda_refs)
7160 BFD_ASSERT (s != NULL);
7162 rela.r_offset = (h->root.u.def.value
7163 + h->root.u.def.section->output_section->vma
7164 + h->root.u.def.section->output_offset);
7165 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
7167 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
7168 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7172 fprintf (stderr, "\n");
7175 /* Mark some specially defined symbols as absolute. */
7176 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
7177 || (!htab->is_vxworks
7178 && (h == htab->elf.hgot
7179 || strcmp (h->root.root.string,
7180 "_PROCEDURE_LINKAGE_TABLE_") == 0)))
7181 sym->st_shndx = SHN_ABS;
7186 static enum elf_reloc_type_class
7187 ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
7189 switch (ELF32_R_TYPE (rela->r_info))
7191 case R_PPC_RELATIVE:
7192 return reloc_class_relative;
7195 case R_PPC_JMP_SLOT:
7196 return reloc_class_plt;
7198 return reloc_class_copy;
7200 return reloc_class_normal;
7204 /* Finish up the dynamic sections. */
7207 ppc_elf_finish_dynamic_sections (bfd *output_bfd,
7208 struct bfd_link_info *info)
7212 struct ppc_elf_link_hash_table *htab;
7217 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
7220 htab = ppc_elf_hash_table (info);
7221 dynobj = elf_hash_table (info)->dynobj;
7222 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
7223 if (htab->is_vxworks)
7224 splt = bfd_get_section_by_name (dynobj, ".plt");
7229 if (htab->elf.hgot != NULL)
7230 got = (htab->elf.hgot->root.u.def.value
7231 + htab->elf.hgot->root.u.def.section->output_section->vma
7232 + htab->elf.hgot->root.u.def.section->output_offset);
7234 if (htab->elf.dynamic_sections_created)
7236 Elf32_External_Dyn *dyncon, *dynconend;
7238 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
7240 dyncon = (Elf32_External_Dyn *) sdyn->contents;
7241 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
7242 for (; dyncon < dynconend; dyncon++)
7244 Elf_Internal_Dyn dyn;
7247 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
7252 if (htab->is_vxworks)
7256 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7260 dyn.d_un.d_val = htab->relplt->size;
7265 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7269 dyn.d_un.d_ptr = got;
7273 if (htab->is_vxworks)
7276 dyn.d_un.d_ptr -= htab->relplt->size;
7285 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7289 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can
7290 easily find the address of the _GLOBAL_OFFSET_TABLE_. */
7291 if (htab->got != NULL)
7293 unsigned char *p = htab->got->contents;
7296 p += htab->elf.hgot->root.u.def.value;
7297 if (htab->plt_type == PLT_OLD)
7298 bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, p - 4);
7302 val = sdyn->output_section->vma + sdyn->output_offset;
7303 bfd_put_32 (output_bfd, val, p);
7305 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
7308 /* Fill in the first entry in the VxWorks procedure linkage table. */
7309 if (splt && splt->size > 0)
7311 /* Use the right PLT. */
7312 static const bfd_vma *plt_entry = NULL;
7313 plt_entry = info->shared ?
7314 ppc_elf_vxworks_pic_plt0_entry : ppc_elf_vxworks_plt0_entry;
7319 (htab->elf.hgot->root.u.def.section->output_section->vma
7320 + htab->elf.hgot->root.u.def.section->output_offset
7321 + htab->elf.hgot->root.u.def.value);
7322 bfd_vma got_hi = (got_value >> 16) + ((got_value & 0x8000) >> 15);
7324 bfd_put_32 (output_bfd, plt_entry[0] | (got_hi & 0xffff),
7325 splt->contents + 0);
7326 bfd_put_32 (output_bfd, plt_entry[1] | (got_value & 0xffff),
7327 splt->contents + 4);
7331 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
7332 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
7334 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
7335 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
7336 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
7337 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
7338 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
7339 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
7343 Elf_Internal_Rela rela;
7346 loc = htab->srelplt2->contents;
7348 /* Output the @ha relocation for the first instruction. */
7349 rela.r_offset = (htab->plt->output_section->vma
7350 + htab->plt->output_offset
7352 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
7354 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7355 loc += sizeof (Elf32_External_Rela);
7357 /* Output the @l relocation for the second instruction. */
7358 rela.r_offset = (htab->plt->output_section->vma
7359 + htab->plt->output_offset
7361 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
7363 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7364 loc += sizeof (Elf32_External_Rela);
7366 /* Fix up the remaining relocations. They may have the wrong
7367 symbol index for _G_O_T_ or _P_L_T_ depending on the order
7368 in which symbols were output. */
7369 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
7371 Elf_Internal_Rela rel;
7373 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7374 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
7375 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7376 loc += sizeof (Elf32_External_Rela);
7378 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7379 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
7380 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7381 loc += sizeof (Elf32_External_Rela);
7383 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7384 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
7385 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7386 loc += sizeof (Elf32_External_Rela);
7391 if (htab->glink != NULL && htab->glink->contents != NULL)
7394 unsigned char *endp;
7399 * PIC glink code is the following:
7401 * # ith PLT code stub.
7402 * addis 11,30,(plt+(i-1)*4-got)@ha
7403 * lwz 11,(plt+(i-1)*4-got)@l(11)
7407 * # A table of branches, one for each plt entry.
7408 * # The idea is that the plt call stub loads ctr (and r11) with these
7409 * # addresses, so (r11 - res_0) gives the plt index * 4.
7410 * res_0: b PLTresolve
7411 * res_1: b PLTresolve
7413 * # Some number of entries towards the end can be nops
7419 * addis 11,11,(1f-res_0)@ha
7422 * 1: addi 11,11,(1b-res_0)@l
7425 * sub 11,11,12 # r11 = index * 4
7426 * addis 12,12,(got+4-1b)@ha
7427 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
7428 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
7431 * add 11,0,11 # r11 = index * 12 = reloc offset.
7434 static const unsigned int pic_plt_resolve[] =
7454 static const unsigned int plt_resolve[] =
7474 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
7476 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7479 /* Build the branch table, one for each plt entry (less one),
7480 and perhaps some padding. */
7481 p = htab->glink->contents;
7482 p += htab->glink_pltresolve;
7483 endp = htab->glink->contents;
7484 endp += htab->glink->size - GLINK_PLTRESOLVE;
7485 while (p < endp - 8 * 4)
7487 bfd_put_32 (output_bfd, B + endp - p, p);
7492 bfd_put_32 (output_bfd, NOP, p);
7496 res0 = (htab->glink_pltresolve
7497 + htab->glink->output_section->vma
7498 + htab->glink->output_offset);
7500 /* Last comes the PLTresolve stub. */
7501 if (info->shared || info->pie)
7505 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7507 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
7510 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
7512 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
7513 + htab->glink->output_section->vma
7514 + htab->glink->output_offset);
7516 bfd_put_32 (output_bfd,
7517 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
7518 bfd_put_32 (output_bfd,
7519 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
7520 bfd_put_32 (output_bfd,
7521 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
7522 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
7524 bfd_put_32 (output_bfd,
7525 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7526 bfd_put_32 (output_bfd,
7527 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
7531 bfd_put_32 (output_bfd,
7532 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7533 bfd_put_32 (output_bfd,
7534 LWZ_12_12 + 4, p + 9*4);
7539 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7541 bfd_put_32 (output_bfd, plt_resolve[i], p);
7544 p -= 4 * ARRAY_SIZE (plt_resolve);
7546 bfd_put_32 (output_bfd,
7547 LIS_12 + PPC_HA (got + 4), p + 0*4);
7548 bfd_put_32 (output_bfd,
7549 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
7550 bfd_put_32 (output_bfd,
7551 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
7552 if (PPC_HA (got + 4) == PPC_HA (got + 8))
7554 bfd_put_32 (output_bfd,
7555 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
7556 bfd_put_32 (output_bfd,
7557 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
7561 bfd_put_32 (output_bfd,
7562 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
7563 bfd_put_32 (output_bfd,
7564 LWZ_12_12 + 4, p + 6*4);
7572 #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
7573 #define TARGET_LITTLE_NAME "elf32-powerpcle"
7574 #define TARGET_BIG_SYM bfd_elf32_powerpc_vec
7575 #define TARGET_BIG_NAME "elf32-powerpc"
7576 #define ELF_ARCH bfd_arch_powerpc
7577 #define ELF_MACHINE_CODE EM_PPC
7578 #ifdef __QNXTARGET__
7579 #define ELF_MAXPAGESIZE 0x1000
7581 #define ELF_MAXPAGESIZE 0x10000
7583 #define ELF_MINPAGESIZE 0x1000
7584 #define ELF_COMMONPAGESIZE 0x1000
7585 #define elf_info_to_howto ppc_elf_info_to_howto
7587 #ifdef EM_CYGNUS_POWERPC
7588 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
7592 #define ELF_MACHINE_ALT2 EM_PPC_OLD
7595 #define elf_backend_plt_not_loaded 1
7596 #define elf_backend_can_gc_sections 1
7597 #define elf_backend_can_refcount 1
7598 #define elf_backend_rela_normal 1
7600 #define bfd_elf32_mkobject ppc_elf_mkobject
7601 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
7602 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
7603 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
7604 #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
7605 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
7606 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
7608 #define elf_backend_object_p ppc_elf_object_p
7609 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
7610 #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
7611 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
7612 #define elf_backend_relocate_section ppc_elf_relocate_section
7613 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
7614 #define elf_backend_check_relocs ppc_elf_check_relocs
7615 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
7616 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
7617 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
7618 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
7619 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
7620 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
7621 #define elf_backend_fake_sections ppc_elf_fake_sections
7622 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
7623 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
7624 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
7625 #define elf_backend_write_core_note ppc_elf_write_core_note
7626 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
7627 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
7628 #define elf_backend_final_write_processing ppc_elf_final_write_processing
7629 #define elf_backend_write_section ppc_elf_write_section
7630 #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
7631 #define elf_backend_plt_sym_val ppc_elf_plt_sym_val
7632 #define elf_backend_action_discarded ppc_elf_action_discarded
7633 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
7635 #include "elf32-target.h"
7637 /* VxWorks Target */
7639 #undef TARGET_LITTLE_SYM
7640 #undef TARGET_LITTLE_NAME
7642 #undef TARGET_BIG_SYM
7643 #define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
7644 #undef TARGET_BIG_NAME
7645 #define TARGET_BIG_NAME "elf32-powerpc-vxworks"
7647 /* VxWorks uses the elf default section flags for .plt. */
7648 static const struct bfd_elf_special_section *
7649 ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
7651 if (sec->name == NULL)
7654 if (strcmp (sec->name, ".plt") == 0)
7655 return _bfd_elf_get_sec_type_attr (abfd, sec);
7657 return ppc_elf_get_sec_type_attr (abfd, sec);
7660 /* Like ppc_elf_link_hash_table_create, but overrides
7661 appropriately for VxWorks. */
7662 static struct bfd_link_hash_table *
7663 ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
7665 struct bfd_link_hash_table *ret;
7667 ret = ppc_elf_link_hash_table_create (abfd);
7670 struct ppc_elf_link_hash_table *htab
7671 = (struct ppc_elf_link_hash_table *)ret;
7672 htab->is_vxworks = 1;
7673 htab->plt_type = PLT_VXWORKS;
7674 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
7675 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
7676 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
7681 /* Tweak magic VxWorks symbols as they are loaded. */
7683 ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
7684 struct bfd_link_info *info,
7685 Elf_Internal_Sym *sym,
7686 const char **namep ATTRIBUTE_UNUSED,
7687 flagword *flagsp ATTRIBUTE_UNUSED,
7691 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
7695 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
7699 ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
7701 ppc_elf_final_write_processing(abfd, linker);
7702 elf_vxworks_final_write_processing(abfd, linker);
7705 /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
7707 #undef elf_backend_want_plt_sym
7708 #define elf_backend_want_plt_sym 1
7709 #undef elf_backend_want_got_plt
7710 #define elf_backend_want_got_plt 1
7711 #undef elf_backend_got_symbol_offset
7712 #define elf_backend_got_symbol_offset 0
7713 #undef elf_backend_plt_not_loaded
7714 #define elf_backend_plt_not_loaded 0
7715 #undef elf_backend_plt_readonly
7716 #define elf_backend_plt_readonly 1
7717 #undef elf_backend_got_header_size
7718 #define elf_backend_got_header_size 12
7720 #undef bfd_elf32_bfd_link_hash_table_create
7721 #define bfd_elf32_bfd_link_hash_table_create \
7722 ppc_elf_vxworks_link_hash_table_create
7723 #undef elf_backend_add_symbol_hook
7724 #define elf_backend_add_symbol_hook \
7725 ppc_elf_vxworks_add_symbol_hook
7726 #undef elf_backend_link_output_symbol_hook
7727 #define elf_backend_link_output_symbol_hook \
7728 elf_vxworks_link_output_symbol_hook
7729 #undef elf_backend_final_write_processing
7730 #define elf_backend_final_write_processing \
7731 ppc_elf_vxworks_final_write_processing
7732 #undef elf_backend_get_sec_type_attr
7733 #define elf_backend_get_sec_type_attr \
7734 ppc_elf_vxworks_get_sec_type_attr
7735 #undef elf_backend_emit_relocs
7736 #define elf_backend_emit_relocs \
7737 elf_vxworks_emit_relocs
7740 #define elf32_bed ppc_elf_vxworks_bed
7742 #include "elf32-target.h"
projects / FreeBSD / releng / 10.0.git / blob