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, 2008 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 3 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. */
24 /* This file is based on a preliminary PowerPC ELF ABI. The
25 information may not match the final PowerPC ELF ABI. It includes
26 suggestions from the in-progress Embedded PowerPC ABI, and that
27 information may also not match. */
36 #include "elf32-ppc.h"
37 #include "elf-vxworks.h"
39 /* RELA relocations are used here. */
41 static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
42 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
43 static bfd_reloc_status_type ppc_elf_unhandled_reloc
44 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
46 /* Branch prediction bit for branch taken relocs. */
47 #define BRANCH_PREDICT_BIT 0x200000
48 /* Mask to set RA in memory instructions. */
49 #define RA_REGISTER_MASK 0x001f0000
50 /* Value to shift register by to insert RA. */
51 #define RA_REGISTER_SHIFT 16
53 /* The name of the dynamic interpreter. This is put in the .interp
55 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
57 /* For old-style PLT. */
58 /* The number of single-slot PLT entries (the rest use two slots). */
59 #define PLT_NUM_SINGLE_ENTRIES 8192
61 /* For new-style .glink and .plt. */
62 #define GLINK_PLTRESOLVE 16*4
63 #define GLINK_ENTRY_SIZE 4*4
65 /* VxWorks uses its own plt layout, filled in by the static linker. */
67 /* The standard VxWorks PLT entry. */
68 #define VXWORKS_PLT_ENTRY_SIZE 32
69 static const bfd_vma ppc_elf_vxworks_plt_entry
70 [VXWORKS_PLT_ENTRY_SIZE / 4] =
72 0x3d800000, /* lis r12,0 */
73 0x818c0000, /* lwz r12,0(r12) */
74 0x7d8903a6, /* mtctr r12 */
75 0x4e800420, /* bctr */
76 0x39600000, /* li r11,0 */
77 0x48000000, /* b 14 <.PLT0resolve+0x4> */
81 static const bfd_vma ppc_elf_vxworks_pic_plt_entry
82 [VXWORKS_PLT_ENTRY_SIZE / 4] =
84 0x3d9e0000, /* addis r12,r30,0 */
85 0x818c0000, /* lwz r12,0(r12) */
86 0x7d8903a6, /* mtctr r12 */
87 0x4e800420, /* bctr */
88 0x39600000, /* li r11,0 */
89 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
94 /* The initial VxWorks PLT entry. */
95 #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
96 static const bfd_vma ppc_elf_vxworks_plt0_entry
97 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
99 0x3d800000, /* lis r12,0 */
100 0x398c0000, /* addi r12,r12,0 */
101 0x800c0008, /* lwz r0,8(r12) */
102 0x7c0903a6, /* mtctr r0 */
103 0x818c0004, /* lwz r12,4(r12) */
104 0x4e800420, /* bctr */
105 0x60000000, /* nop */
106 0x60000000, /* nop */
108 static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
109 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
111 0x819e0008, /* lwz r12,8(r30) */
112 0x7d8903a6, /* mtctr r12 */
113 0x819e0004, /* lwz r12,4(r30) */
114 0x4e800420, /* bctr */
115 0x60000000, /* nop */
116 0x60000000, /* nop */
117 0x60000000, /* nop */
118 0x60000000, /* nop */
121 /* For executables, we have some additional relocations in
122 .rela.plt.unloaded, for the kernel loader. */
124 /* The number of non-JMP_SLOT relocations per PLT0 slot. */
125 #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
126 /* The number of relocations in the PLTResolve slot. */
127 #define VXWORKS_PLTRESOLVE_RELOCS 2
128 /* The number of relocations in the PLTResolve slot when when creating
130 #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
132 /* Some instructions. */
133 #define ADDIS_11_11 0x3d6b0000
134 #define ADDIS_11_30 0x3d7e0000
135 #define ADDIS_12_12 0x3d8c0000
136 #define ADDI_11_11 0x396b0000
137 #define ADD_0_11_11 0x7c0b5a14
138 #define ADD_11_0_11 0x7d605a14
140 #define BCL_20_31 0x429f0005
141 #define BCTR 0x4e800420
142 #define LIS_11 0x3d600000
143 #define LIS_12 0x3d800000
144 #define LWZU_0_12 0x840c0000
145 #define LWZ_0_12 0x800c0000
146 #define LWZ_11_11 0x816b0000
147 #define LWZ_11_30 0x817e0000
148 #define LWZ_12_12 0x818c0000
149 #define MFLR_0 0x7c0802a6
150 #define MFLR_12 0x7d8802a6
151 #define MTCTR_0 0x7c0903a6
152 #define MTCTR_11 0x7d6903a6
153 #define MTLR_0 0x7c0803a6
154 #define NOP 0x60000000
155 #define SUB_11_11_12 0x7d6c5850
157 /* Offset of tp and dtp pointers from start of TLS block. */
158 #define TP_OFFSET 0x7000
159 #define DTP_OFFSET 0x8000
161 static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
163 static reloc_howto_type ppc_elf_howto_raw[] = {
164 /* This reloc does nothing. */
165 HOWTO (R_PPC_NONE, /* type */
167 2, /* size (0 = byte, 1 = short, 2 = long) */
169 FALSE, /* pc_relative */
171 complain_overflow_bitfield, /* complain_on_overflow */
172 bfd_elf_generic_reloc, /* special_function */
173 "R_PPC_NONE", /* name */
174 FALSE, /* partial_inplace */
177 FALSE), /* pcrel_offset */
179 /* A standard 32 bit relocation. */
180 HOWTO (R_PPC_ADDR32, /* type */
182 2, /* size (0 = byte, 1 = short, 2 = long) */
184 FALSE, /* pc_relative */
186 complain_overflow_bitfield, /* complain_on_overflow */
187 bfd_elf_generic_reloc, /* special_function */
188 "R_PPC_ADDR32", /* name */
189 FALSE, /* partial_inplace */
191 0xffffffff, /* dst_mask */
192 FALSE), /* pcrel_offset */
194 /* An absolute 26 bit branch; the lower two bits must be zero.
195 FIXME: we don't check that, we just clear them. */
196 HOWTO (R_PPC_ADDR24, /* type */
198 2, /* size (0 = byte, 1 = short, 2 = long) */
200 FALSE, /* pc_relative */
202 complain_overflow_bitfield, /* complain_on_overflow */
203 bfd_elf_generic_reloc, /* special_function */
204 "R_PPC_ADDR24", /* name */
205 FALSE, /* partial_inplace */
207 0x3fffffc, /* dst_mask */
208 FALSE), /* pcrel_offset */
210 /* A standard 16 bit relocation. */
211 HOWTO (R_PPC_ADDR16, /* type */
213 1, /* size (0 = byte, 1 = short, 2 = long) */
215 FALSE, /* pc_relative */
217 complain_overflow_bitfield, /* complain_on_overflow */
218 bfd_elf_generic_reloc, /* special_function */
219 "R_PPC_ADDR16", /* name */
220 FALSE, /* partial_inplace */
222 0xffff, /* dst_mask */
223 FALSE), /* pcrel_offset */
225 /* A 16 bit relocation without overflow. */
226 HOWTO (R_PPC_ADDR16_LO, /* type */
228 1, /* size (0 = byte, 1 = short, 2 = long) */
230 FALSE, /* pc_relative */
232 complain_overflow_dont,/* complain_on_overflow */
233 bfd_elf_generic_reloc, /* special_function */
234 "R_PPC_ADDR16_LO", /* name */
235 FALSE, /* partial_inplace */
237 0xffff, /* dst_mask */
238 FALSE), /* pcrel_offset */
240 /* The high order 16 bits of an address. */
241 HOWTO (R_PPC_ADDR16_HI, /* type */
243 1, /* size (0 = byte, 1 = short, 2 = long) */
245 FALSE, /* pc_relative */
247 complain_overflow_dont, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_PPC_ADDR16_HI", /* name */
250 FALSE, /* partial_inplace */
252 0xffff, /* dst_mask */
253 FALSE), /* pcrel_offset */
255 /* The high order 16 bits of an address, plus 1 if the contents of
256 the low 16 bits, treated as a signed number, is negative. */
257 HOWTO (R_PPC_ADDR16_HA, /* type */
259 1, /* size (0 = byte, 1 = short, 2 = long) */
261 FALSE, /* pc_relative */
263 complain_overflow_dont, /* complain_on_overflow */
264 ppc_elf_addr16_ha_reloc, /* special_function */
265 "R_PPC_ADDR16_HA", /* name */
266 FALSE, /* partial_inplace */
268 0xffff, /* dst_mask */
269 FALSE), /* pcrel_offset */
271 /* An absolute 16 bit branch; the lower two bits must be zero.
272 FIXME: we don't check that, we just clear them. */
273 HOWTO (R_PPC_ADDR14, /* type */
275 2, /* size (0 = byte, 1 = short, 2 = long) */
277 FALSE, /* pc_relative */
279 complain_overflow_bitfield, /* complain_on_overflow */
280 bfd_elf_generic_reloc, /* special_function */
281 "R_PPC_ADDR14", /* name */
282 FALSE, /* partial_inplace */
284 0xfffc, /* dst_mask */
285 FALSE), /* pcrel_offset */
287 /* An absolute 16 bit branch, for which bit 10 should be set to
288 indicate that the branch is expected to be taken. The lower two
289 bits must be zero. */
290 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
292 2, /* size (0 = byte, 1 = short, 2 = long) */
294 FALSE, /* pc_relative */
296 complain_overflow_bitfield, /* complain_on_overflow */
297 bfd_elf_generic_reloc, /* special_function */
298 "R_PPC_ADDR14_BRTAKEN",/* name */
299 FALSE, /* partial_inplace */
301 0xfffc, /* dst_mask */
302 FALSE), /* pcrel_offset */
304 /* An absolute 16 bit branch, for which bit 10 should be set to
305 indicate that the branch is not expected to be taken. The lower
306 two bits must be zero. */
307 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
309 2, /* size (0 = byte, 1 = short, 2 = long) */
311 FALSE, /* pc_relative */
313 complain_overflow_bitfield, /* complain_on_overflow */
314 bfd_elf_generic_reloc, /* special_function */
315 "R_PPC_ADDR14_BRNTAKEN",/* name */
316 FALSE, /* partial_inplace */
318 0xfffc, /* dst_mask */
319 FALSE), /* pcrel_offset */
321 /* A relative 26 bit branch; the lower two bits must be zero. */
322 HOWTO (R_PPC_REL24, /* type */
324 2, /* size (0 = byte, 1 = short, 2 = long) */
326 TRUE, /* pc_relative */
328 complain_overflow_signed, /* complain_on_overflow */
329 bfd_elf_generic_reloc, /* special_function */
330 "R_PPC_REL24", /* name */
331 FALSE, /* partial_inplace */
333 0x3fffffc, /* dst_mask */
334 TRUE), /* pcrel_offset */
336 /* A relative 16 bit branch; the lower two bits must be zero. */
337 HOWTO (R_PPC_REL14, /* type */
339 2, /* size (0 = byte, 1 = short, 2 = long) */
341 TRUE, /* pc_relative */
343 complain_overflow_signed, /* complain_on_overflow */
344 bfd_elf_generic_reloc, /* special_function */
345 "R_PPC_REL14", /* name */
346 FALSE, /* partial_inplace */
348 0xfffc, /* dst_mask */
349 TRUE), /* pcrel_offset */
351 /* A relative 16 bit branch. Bit 10 should be set to indicate that
352 the branch is expected to be taken. The lower two bits must be
354 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
356 2, /* size (0 = byte, 1 = short, 2 = long) */
358 TRUE, /* pc_relative */
360 complain_overflow_signed, /* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_PPC_REL14_BRTAKEN", /* name */
363 FALSE, /* partial_inplace */
365 0xfffc, /* dst_mask */
366 TRUE), /* pcrel_offset */
368 /* A relative 16 bit branch. Bit 10 should be set to indicate that
369 the branch is not expected to be taken. The lower two bits must
371 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
373 2, /* size (0 = byte, 1 = short, 2 = long) */
375 TRUE, /* pc_relative */
377 complain_overflow_signed, /* complain_on_overflow */
378 bfd_elf_generic_reloc, /* special_function */
379 "R_PPC_REL14_BRNTAKEN",/* name */
380 FALSE, /* partial_inplace */
382 0xfffc, /* dst_mask */
383 TRUE), /* pcrel_offset */
385 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
387 HOWTO (R_PPC_GOT16, /* type */
389 1, /* size (0 = byte, 1 = short, 2 = long) */
391 FALSE, /* pc_relative */
393 complain_overflow_signed, /* complain_on_overflow */
394 bfd_elf_generic_reloc, /* special_function */
395 "R_PPC_GOT16", /* name */
396 FALSE, /* partial_inplace */
398 0xffff, /* dst_mask */
399 FALSE), /* pcrel_offset */
401 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
403 HOWTO (R_PPC_GOT16_LO, /* type */
405 1, /* size (0 = byte, 1 = short, 2 = long) */
407 FALSE, /* pc_relative */
409 complain_overflow_dont, /* complain_on_overflow */
410 bfd_elf_generic_reloc, /* special_function */
411 "R_PPC_GOT16_LO", /* name */
412 FALSE, /* partial_inplace */
414 0xffff, /* dst_mask */
415 FALSE), /* pcrel_offset */
417 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
419 HOWTO (R_PPC_GOT16_HI, /* type */
421 1, /* size (0 = byte, 1 = short, 2 = long) */
423 FALSE, /* pc_relative */
425 complain_overflow_bitfield, /* complain_on_overflow */
426 bfd_elf_generic_reloc, /* special_function */
427 "R_PPC_GOT16_HI", /* name */
428 FALSE, /* partial_inplace */
430 0xffff, /* dst_mask */
431 FALSE), /* pcrel_offset */
433 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
435 HOWTO (R_PPC_GOT16_HA, /* type */
437 1, /* size (0 = byte, 1 = short, 2 = long) */
439 FALSE, /* pc_relative */
441 complain_overflow_bitfield, /* complain_on_overflow */
442 ppc_elf_addr16_ha_reloc, /* special_function */
443 "R_PPC_GOT16_HA", /* name */
444 FALSE, /* partial_inplace */
446 0xffff, /* dst_mask */
447 FALSE), /* pcrel_offset */
449 /* Like R_PPC_REL24, but referring to the procedure linkage table
450 entry for the symbol. */
451 HOWTO (R_PPC_PLTREL24, /* type */
453 2, /* size (0 = byte, 1 = short, 2 = long) */
455 TRUE, /* pc_relative */
457 complain_overflow_signed, /* complain_on_overflow */
458 bfd_elf_generic_reloc, /* special_function */
459 "R_PPC_PLTREL24", /* name */
460 FALSE, /* partial_inplace */
462 0x3fffffc, /* dst_mask */
463 TRUE), /* pcrel_offset */
465 /* This is used only by the dynamic linker. The symbol should exist
466 both in the object being run and in some shared library. The
467 dynamic linker copies the data addressed by the symbol from the
468 shared library into the object, because the object being
469 run has to have the data at some particular address. */
470 HOWTO (R_PPC_COPY, /* type */
472 2, /* size (0 = byte, 1 = short, 2 = long) */
474 FALSE, /* pc_relative */
476 complain_overflow_bitfield, /* complain_on_overflow */
477 bfd_elf_generic_reloc, /* special_function */
478 "R_PPC_COPY", /* name */
479 FALSE, /* partial_inplace */
482 FALSE), /* pcrel_offset */
484 /* Like R_PPC_ADDR32, but used when setting global offset table
486 HOWTO (R_PPC_GLOB_DAT, /* type */
488 2, /* size (0 = byte, 1 = short, 2 = long) */
490 FALSE, /* pc_relative */
492 complain_overflow_bitfield, /* complain_on_overflow */
493 bfd_elf_generic_reloc, /* special_function */
494 "R_PPC_GLOB_DAT", /* name */
495 FALSE, /* partial_inplace */
497 0xffffffff, /* dst_mask */
498 FALSE), /* pcrel_offset */
500 /* Marks a procedure linkage table entry for a symbol. */
501 HOWTO (R_PPC_JMP_SLOT, /* type */
503 2, /* size (0 = byte, 1 = short, 2 = long) */
505 FALSE, /* pc_relative */
507 complain_overflow_bitfield, /* complain_on_overflow */
508 bfd_elf_generic_reloc, /* special_function */
509 "R_PPC_JMP_SLOT", /* name */
510 FALSE, /* partial_inplace */
513 FALSE), /* pcrel_offset */
515 /* Used only by the dynamic linker. When the object is run, this
516 longword is set to the load address of the object, plus the
518 HOWTO (R_PPC_RELATIVE, /* type */
520 2, /* size (0 = byte, 1 = short, 2 = long) */
522 FALSE, /* pc_relative */
524 complain_overflow_bitfield, /* complain_on_overflow */
525 bfd_elf_generic_reloc, /* special_function */
526 "R_PPC_RELATIVE", /* name */
527 FALSE, /* partial_inplace */
529 0xffffffff, /* dst_mask */
530 FALSE), /* pcrel_offset */
532 /* Like R_PPC_REL24, but uses the value of the symbol within the
533 object rather than the final value. Normally used for
534 _GLOBAL_OFFSET_TABLE_. */
535 HOWTO (R_PPC_LOCAL24PC, /* type */
537 2, /* size (0 = byte, 1 = short, 2 = long) */
539 TRUE, /* pc_relative */
541 complain_overflow_signed, /* complain_on_overflow */
542 bfd_elf_generic_reloc, /* special_function */
543 "R_PPC_LOCAL24PC", /* name */
544 FALSE, /* partial_inplace */
546 0x3fffffc, /* dst_mask */
547 TRUE), /* pcrel_offset */
549 /* Like R_PPC_ADDR32, but may be unaligned. */
550 HOWTO (R_PPC_UADDR32, /* type */
552 2, /* size (0 = byte, 1 = short, 2 = long) */
554 FALSE, /* pc_relative */
556 complain_overflow_bitfield, /* complain_on_overflow */
557 bfd_elf_generic_reloc, /* special_function */
558 "R_PPC_UADDR32", /* name */
559 FALSE, /* partial_inplace */
561 0xffffffff, /* dst_mask */
562 FALSE), /* pcrel_offset */
564 /* Like R_PPC_ADDR16, but may be unaligned. */
565 HOWTO (R_PPC_UADDR16, /* type */
567 1, /* size (0 = byte, 1 = short, 2 = long) */
569 FALSE, /* pc_relative */
571 complain_overflow_bitfield, /* complain_on_overflow */
572 bfd_elf_generic_reloc, /* special_function */
573 "R_PPC_UADDR16", /* name */
574 FALSE, /* partial_inplace */
576 0xffff, /* dst_mask */
577 FALSE), /* pcrel_offset */
579 /* 32-bit PC relative */
580 HOWTO (R_PPC_REL32, /* type */
582 2, /* size (0 = byte, 1 = short, 2 = long) */
584 TRUE, /* pc_relative */
586 complain_overflow_bitfield, /* complain_on_overflow */
587 bfd_elf_generic_reloc, /* special_function */
588 "R_PPC_REL32", /* name */
589 FALSE, /* partial_inplace */
591 0xffffffff, /* dst_mask */
592 TRUE), /* pcrel_offset */
594 /* 32-bit relocation to the symbol's procedure linkage table.
595 FIXME: not supported. */
596 HOWTO (R_PPC_PLT32, /* type */
598 2, /* size (0 = byte, 1 = short, 2 = long) */
600 FALSE, /* pc_relative */
602 complain_overflow_bitfield, /* complain_on_overflow */
603 bfd_elf_generic_reloc, /* special_function */
604 "R_PPC_PLT32", /* name */
605 FALSE, /* partial_inplace */
608 FALSE), /* pcrel_offset */
610 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
611 FIXME: not supported. */
612 HOWTO (R_PPC_PLTREL32, /* type */
614 2, /* size (0 = byte, 1 = short, 2 = long) */
616 TRUE, /* pc_relative */
618 complain_overflow_bitfield, /* complain_on_overflow */
619 bfd_elf_generic_reloc, /* special_function */
620 "R_PPC_PLTREL32", /* name */
621 FALSE, /* partial_inplace */
624 TRUE), /* pcrel_offset */
626 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
628 HOWTO (R_PPC_PLT16_LO, /* type */
630 1, /* size (0 = byte, 1 = short, 2 = long) */
632 FALSE, /* pc_relative */
634 complain_overflow_dont, /* complain_on_overflow */
635 bfd_elf_generic_reloc, /* special_function */
636 "R_PPC_PLT16_LO", /* name */
637 FALSE, /* partial_inplace */
639 0xffff, /* dst_mask */
640 FALSE), /* pcrel_offset */
642 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
644 HOWTO (R_PPC_PLT16_HI, /* type */
646 1, /* size (0 = byte, 1 = short, 2 = long) */
648 FALSE, /* pc_relative */
650 complain_overflow_bitfield, /* complain_on_overflow */
651 bfd_elf_generic_reloc, /* special_function */
652 "R_PPC_PLT16_HI", /* name */
653 FALSE, /* partial_inplace */
655 0xffff, /* dst_mask */
656 FALSE), /* pcrel_offset */
658 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
660 HOWTO (R_PPC_PLT16_HA, /* type */
662 1, /* size (0 = byte, 1 = short, 2 = long) */
664 FALSE, /* pc_relative */
666 complain_overflow_bitfield, /* complain_on_overflow */
667 ppc_elf_addr16_ha_reloc, /* special_function */
668 "R_PPC_PLT16_HA", /* name */
669 FALSE, /* partial_inplace */
671 0xffff, /* dst_mask */
672 FALSE), /* pcrel_offset */
674 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
676 HOWTO (R_PPC_SDAREL16, /* type */
678 1, /* size (0 = byte, 1 = short, 2 = long) */
680 FALSE, /* pc_relative */
682 complain_overflow_signed, /* complain_on_overflow */
683 bfd_elf_generic_reloc, /* special_function */
684 "R_PPC_SDAREL16", /* name */
685 FALSE, /* partial_inplace */
687 0xffff, /* dst_mask */
688 FALSE), /* pcrel_offset */
690 /* 16-bit section relative relocation. */
691 HOWTO (R_PPC_SECTOFF, /* type */
693 1, /* size (0 = byte, 1 = short, 2 = long) */
695 FALSE, /* pc_relative */
697 complain_overflow_bitfield, /* complain_on_overflow */
698 bfd_elf_generic_reloc, /* special_function */
699 "R_PPC_SECTOFF", /* name */
700 FALSE, /* partial_inplace */
702 0xffff, /* dst_mask */
703 FALSE), /* pcrel_offset */
705 /* 16-bit lower half section relative relocation. */
706 HOWTO (R_PPC_SECTOFF_LO, /* type */
708 1, /* size (0 = byte, 1 = short, 2 = long) */
710 FALSE, /* pc_relative */
712 complain_overflow_dont, /* complain_on_overflow */
713 bfd_elf_generic_reloc, /* special_function */
714 "R_PPC_SECTOFF_LO", /* name */
715 FALSE, /* partial_inplace */
717 0xffff, /* dst_mask */
718 FALSE), /* pcrel_offset */
720 /* 16-bit upper half section relative relocation. */
721 HOWTO (R_PPC_SECTOFF_HI, /* type */
723 1, /* size (0 = byte, 1 = short, 2 = long) */
725 FALSE, /* pc_relative */
727 complain_overflow_bitfield, /* complain_on_overflow */
728 bfd_elf_generic_reloc, /* special_function */
729 "R_PPC_SECTOFF_HI", /* name */
730 FALSE, /* partial_inplace */
732 0xffff, /* dst_mask */
733 FALSE), /* pcrel_offset */
735 /* 16-bit upper half adjusted section relative relocation. */
736 HOWTO (R_PPC_SECTOFF_HA, /* type */
738 1, /* size (0 = byte, 1 = short, 2 = long) */
740 FALSE, /* pc_relative */
742 complain_overflow_bitfield, /* complain_on_overflow */
743 ppc_elf_addr16_ha_reloc, /* special_function */
744 "R_PPC_SECTOFF_HA", /* name */
745 FALSE, /* partial_inplace */
747 0xffff, /* dst_mask */
748 FALSE), /* pcrel_offset */
750 /* Marker reloc for TLS. */
753 2, /* size (0 = byte, 1 = short, 2 = long) */
755 FALSE, /* pc_relative */
757 complain_overflow_dont, /* complain_on_overflow */
758 bfd_elf_generic_reloc, /* special_function */
759 "R_PPC_TLS", /* name */
760 FALSE, /* partial_inplace */
763 FALSE), /* pcrel_offset */
765 /* Computes the load module index of the load module that contains the
766 definition of its TLS sym. */
767 HOWTO (R_PPC_DTPMOD32,
769 2, /* size (0 = byte, 1 = short, 2 = long) */
771 FALSE, /* pc_relative */
773 complain_overflow_dont, /* complain_on_overflow */
774 ppc_elf_unhandled_reloc, /* special_function */
775 "R_PPC_DTPMOD32", /* name */
776 FALSE, /* partial_inplace */
778 0xffffffff, /* dst_mask */
779 FALSE), /* pcrel_offset */
781 /* Computes a dtv-relative displacement, the difference between the value
782 of sym+add and the base address of the thread-local storage block that
783 contains the definition of sym, minus 0x8000. */
784 HOWTO (R_PPC_DTPREL32,
786 2, /* size (0 = byte, 1 = short, 2 = long) */
788 FALSE, /* pc_relative */
790 complain_overflow_dont, /* complain_on_overflow */
791 ppc_elf_unhandled_reloc, /* special_function */
792 "R_PPC_DTPREL32", /* name */
793 FALSE, /* partial_inplace */
795 0xffffffff, /* dst_mask */
796 FALSE), /* pcrel_offset */
798 /* A 16 bit dtprel reloc. */
799 HOWTO (R_PPC_DTPREL16,
801 1, /* size (0 = byte, 1 = short, 2 = long) */
803 FALSE, /* pc_relative */
805 complain_overflow_signed, /* complain_on_overflow */
806 ppc_elf_unhandled_reloc, /* special_function */
807 "R_PPC_DTPREL16", /* name */
808 FALSE, /* partial_inplace */
810 0xffff, /* dst_mask */
811 FALSE), /* pcrel_offset */
813 /* Like DTPREL16, but no overflow. */
814 HOWTO (R_PPC_DTPREL16_LO,
816 1, /* size (0 = byte, 1 = short, 2 = long) */
818 FALSE, /* pc_relative */
820 complain_overflow_dont, /* complain_on_overflow */
821 ppc_elf_unhandled_reloc, /* special_function */
822 "R_PPC_DTPREL16_LO", /* name */
823 FALSE, /* partial_inplace */
825 0xffff, /* dst_mask */
826 FALSE), /* pcrel_offset */
828 /* Like DTPREL16_LO, but next higher group of 16 bits. */
829 HOWTO (R_PPC_DTPREL16_HI,
831 1, /* size (0 = byte, 1 = short, 2 = long) */
833 FALSE, /* pc_relative */
835 complain_overflow_dont, /* complain_on_overflow */
836 ppc_elf_unhandled_reloc, /* special_function */
837 "R_PPC_DTPREL16_HI", /* name */
838 FALSE, /* partial_inplace */
840 0xffff, /* dst_mask */
841 FALSE), /* pcrel_offset */
843 /* Like DTPREL16_HI, but adjust for low 16 bits. */
844 HOWTO (R_PPC_DTPREL16_HA,
846 1, /* size (0 = byte, 1 = short, 2 = long) */
848 FALSE, /* pc_relative */
850 complain_overflow_dont, /* complain_on_overflow */
851 ppc_elf_unhandled_reloc, /* special_function */
852 "R_PPC_DTPREL16_HA", /* name */
853 FALSE, /* partial_inplace */
855 0xffff, /* dst_mask */
856 FALSE), /* pcrel_offset */
858 /* Computes a tp-relative displacement, the difference between the value of
859 sym+add and the value of the thread pointer (r13). */
860 HOWTO (R_PPC_TPREL32,
862 2, /* size (0 = byte, 1 = short, 2 = long) */
864 FALSE, /* pc_relative */
866 complain_overflow_dont, /* complain_on_overflow */
867 ppc_elf_unhandled_reloc, /* special_function */
868 "R_PPC_TPREL32", /* name */
869 FALSE, /* partial_inplace */
871 0xffffffff, /* dst_mask */
872 FALSE), /* pcrel_offset */
874 /* A 16 bit tprel reloc. */
875 HOWTO (R_PPC_TPREL16,
877 1, /* size (0 = byte, 1 = short, 2 = long) */
879 FALSE, /* pc_relative */
881 complain_overflow_signed, /* complain_on_overflow */
882 ppc_elf_unhandled_reloc, /* special_function */
883 "R_PPC_TPREL16", /* name */
884 FALSE, /* partial_inplace */
886 0xffff, /* dst_mask */
887 FALSE), /* pcrel_offset */
889 /* Like TPREL16, but no overflow. */
890 HOWTO (R_PPC_TPREL16_LO,
892 1, /* size (0 = byte, 1 = short, 2 = long) */
894 FALSE, /* pc_relative */
896 complain_overflow_dont, /* complain_on_overflow */
897 ppc_elf_unhandled_reloc, /* special_function */
898 "R_PPC_TPREL16_LO", /* name */
899 FALSE, /* partial_inplace */
901 0xffff, /* dst_mask */
902 FALSE), /* pcrel_offset */
904 /* Like TPREL16_LO, but next higher group of 16 bits. */
905 HOWTO (R_PPC_TPREL16_HI,
907 1, /* size (0 = byte, 1 = short, 2 = long) */
909 FALSE, /* pc_relative */
911 complain_overflow_dont, /* complain_on_overflow */
912 ppc_elf_unhandled_reloc, /* special_function */
913 "R_PPC_TPREL16_HI", /* name */
914 FALSE, /* partial_inplace */
916 0xffff, /* dst_mask */
917 FALSE), /* pcrel_offset */
919 /* Like TPREL16_HI, but adjust for low 16 bits. */
920 HOWTO (R_PPC_TPREL16_HA,
922 1, /* size (0 = byte, 1 = short, 2 = long) */
924 FALSE, /* pc_relative */
926 complain_overflow_dont, /* complain_on_overflow */
927 ppc_elf_unhandled_reloc, /* special_function */
928 "R_PPC_TPREL16_HA", /* name */
929 FALSE, /* partial_inplace */
931 0xffff, /* dst_mask */
932 FALSE), /* pcrel_offset */
934 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
935 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
936 to the first entry. */
937 HOWTO (R_PPC_GOT_TLSGD16,
939 1, /* size (0 = byte, 1 = short, 2 = long) */
941 FALSE, /* pc_relative */
943 complain_overflow_signed, /* complain_on_overflow */
944 ppc_elf_unhandled_reloc, /* special_function */
945 "R_PPC_GOT_TLSGD16", /* name */
946 FALSE, /* partial_inplace */
948 0xffff, /* dst_mask */
949 FALSE), /* pcrel_offset */
951 /* Like GOT_TLSGD16, but no overflow. */
952 HOWTO (R_PPC_GOT_TLSGD16_LO,
954 1, /* size (0 = byte, 1 = short, 2 = long) */
956 FALSE, /* pc_relative */
958 complain_overflow_dont, /* complain_on_overflow */
959 ppc_elf_unhandled_reloc, /* special_function */
960 "R_PPC_GOT_TLSGD16_LO", /* name */
961 FALSE, /* partial_inplace */
963 0xffff, /* dst_mask */
964 FALSE), /* pcrel_offset */
966 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
967 HOWTO (R_PPC_GOT_TLSGD16_HI,
969 1, /* size (0 = byte, 1 = short, 2 = long) */
971 FALSE, /* pc_relative */
973 complain_overflow_dont, /* complain_on_overflow */
974 ppc_elf_unhandled_reloc, /* special_function */
975 "R_PPC_GOT_TLSGD16_HI", /* name */
976 FALSE, /* partial_inplace */
978 0xffff, /* dst_mask */
979 FALSE), /* pcrel_offset */
981 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
982 HOWTO (R_PPC_GOT_TLSGD16_HA,
984 1, /* size (0 = byte, 1 = short, 2 = long) */
986 FALSE, /* pc_relative */
988 complain_overflow_dont, /* complain_on_overflow */
989 ppc_elf_unhandled_reloc, /* special_function */
990 "R_PPC_GOT_TLSGD16_HA", /* name */
991 FALSE, /* partial_inplace */
993 0xffff, /* dst_mask */
994 FALSE), /* pcrel_offset */
996 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
997 with values (sym+add)@dtpmod and zero, and computes the offset to the
999 HOWTO (R_PPC_GOT_TLSLD16,
1001 1, /* size (0 = byte, 1 = short, 2 = long) */
1003 FALSE, /* pc_relative */
1005 complain_overflow_signed, /* complain_on_overflow */
1006 ppc_elf_unhandled_reloc, /* special_function */
1007 "R_PPC_GOT_TLSLD16", /* name */
1008 FALSE, /* partial_inplace */
1010 0xffff, /* dst_mask */
1011 FALSE), /* pcrel_offset */
1013 /* Like GOT_TLSLD16, but no overflow. */
1014 HOWTO (R_PPC_GOT_TLSLD16_LO,
1016 1, /* size (0 = byte, 1 = short, 2 = long) */
1018 FALSE, /* pc_relative */
1020 complain_overflow_dont, /* complain_on_overflow */
1021 ppc_elf_unhandled_reloc, /* special_function */
1022 "R_PPC_GOT_TLSLD16_LO", /* name */
1023 FALSE, /* partial_inplace */
1025 0xffff, /* dst_mask */
1026 FALSE), /* pcrel_offset */
1028 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1029 HOWTO (R_PPC_GOT_TLSLD16_HI,
1030 16, /* rightshift */
1031 1, /* size (0 = byte, 1 = short, 2 = long) */
1033 FALSE, /* pc_relative */
1035 complain_overflow_dont, /* complain_on_overflow */
1036 ppc_elf_unhandled_reloc, /* special_function */
1037 "R_PPC_GOT_TLSLD16_HI", /* name */
1038 FALSE, /* partial_inplace */
1040 0xffff, /* dst_mask */
1041 FALSE), /* pcrel_offset */
1043 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1044 HOWTO (R_PPC_GOT_TLSLD16_HA,
1045 16, /* rightshift */
1046 1, /* size (0 = byte, 1 = short, 2 = long) */
1048 FALSE, /* pc_relative */
1050 complain_overflow_dont, /* complain_on_overflow */
1051 ppc_elf_unhandled_reloc, /* special_function */
1052 "R_PPC_GOT_TLSLD16_HA", /* name */
1053 FALSE, /* partial_inplace */
1055 0xffff, /* dst_mask */
1056 FALSE), /* pcrel_offset */
1058 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1059 the offset to the entry. */
1060 HOWTO (R_PPC_GOT_DTPREL16,
1062 1, /* size (0 = byte, 1 = short, 2 = long) */
1064 FALSE, /* pc_relative */
1066 complain_overflow_signed, /* complain_on_overflow */
1067 ppc_elf_unhandled_reloc, /* special_function */
1068 "R_PPC_GOT_DTPREL16", /* name */
1069 FALSE, /* partial_inplace */
1071 0xffff, /* dst_mask */
1072 FALSE), /* pcrel_offset */
1074 /* Like GOT_DTPREL16, but no overflow. */
1075 HOWTO (R_PPC_GOT_DTPREL16_LO,
1077 1, /* size (0 = byte, 1 = short, 2 = long) */
1079 FALSE, /* pc_relative */
1081 complain_overflow_dont, /* complain_on_overflow */
1082 ppc_elf_unhandled_reloc, /* special_function */
1083 "R_PPC_GOT_DTPREL16_LO", /* name */
1084 FALSE, /* partial_inplace */
1086 0xffff, /* dst_mask */
1087 FALSE), /* pcrel_offset */
1089 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1090 HOWTO (R_PPC_GOT_DTPREL16_HI,
1091 16, /* rightshift */
1092 1, /* size (0 = byte, 1 = short, 2 = long) */
1094 FALSE, /* pc_relative */
1096 complain_overflow_dont, /* complain_on_overflow */
1097 ppc_elf_unhandled_reloc, /* special_function */
1098 "R_PPC_GOT_DTPREL16_HI", /* name */
1099 FALSE, /* partial_inplace */
1101 0xffff, /* dst_mask */
1102 FALSE), /* pcrel_offset */
1104 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1105 HOWTO (R_PPC_GOT_DTPREL16_HA,
1106 16, /* rightshift */
1107 1, /* size (0 = byte, 1 = short, 2 = long) */
1109 FALSE, /* pc_relative */
1111 complain_overflow_dont, /* complain_on_overflow */
1112 ppc_elf_unhandled_reloc, /* special_function */
1113 "R_PPC_GOT_DTPREL16_HA", /* name */
1114 FALSE, /* partial_inplace */
1116 0xffff, /* dst_mask */
1117 FALSE), /* pcrel_offset */
1119 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1120 offset to the entry. */
1121 HOWTO (R_PPC_GOT_TPREL16,
1123 1, /* size (0 = byte, 1 = short, 2 = long) */
1125 FALSE, /* pc_relative */
1127 complain_overflow_signed, /* complain_on_overflow */
1128 ppc_elf_unhandled_reloc, /* special_function */
1129 "R_PPC_GOT_TPREL16", /* name */
1130 FALSE, /* partial_inplace */
1132 0xffff, /* dst_mask */
1133 FALSE), /* pcrel_offset */
1135 /* Like GOT_TPREL16, but no overflow. */
1136 HOWTO (R_PPC_GOT_TPREL16_LO,
1138 1, /* size (0 = byte, 1 = short, 2 = long) */
1140 FALSE, /* pc_relative */
1142 complain_overflow_dont, /* complain_on_overflow */
1143 ppc_elf_unhandled_reloc, /* special_function */
1144 "R_PPC_GOT_TPREL16_LO", /* name */
1145 FALSE, /* partial_inplace */
1147 0xffff, /* dst_mask */
1148 FALSE), /* pcrel_offset */
1150 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1151 HOWTO (R_PPC_GOT_TPREL16_HI,
1152 16, /* rightshift */
1153 1, /* size (0 = byte, 1 = short, 2 = long) */
1155 FALSE, /* pc_relative */
1157 complain_overflow_dont, /* complain_on_overflow */
1158 ppc_elf_unhandled_reloc, /* special_function */
1159 "R_PPC_GOT_TPREL16_HI", /* name */
1160 FALSE, /* partial_inplace */
1162 0xffff, /* dst_mask */
1163 FALSE), /* pcrel_offset */
1165 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1166 HOWTO (R_PPC_GOT_TPREL16_HA,
1167 16, /* rightshift */
1168 1, /* size (0 = byte, 1 = short, 2 = long) */
1170 FALSE, /* pc_relative */
1172 complain_overflow_dont, /* complain_on_overflow */
1173 ppc_elf_unhandled_reloc, /* special_function */
1174 "R_PPC_GOT_TPREL16_HA", /* name */
1175 FALSE, /* partial_inplace */
1177 0xffff, /* dst_mask */
1178 FALSE), /* pcrel_offset */
1180 /* The remaining relocs are from the Embedded ELF ABI, and are not
1181 in the SVR4 ELF ABI. */
1183 /* 32 bit value resulting from the addend minus the symbol. */
1184 HOWTO (R_PPC_EMB_NADDR32, /* type */
1186 2, /* size (0 = byte, 1 = short, 2 = long) */
1188 FALSE, /* pc_relative */
1190 complain_overflow_bitfield, /* complain_on_overflow */
1191 bfd_elf_generic_reloc, /* special_function */
1192 "R_PPC_EMB_NADDR32", /* name */
1193 FALSE, /* partial_inplace */
1195 0xffffffff, /* dst_mask */
1196 FALSE), /* pcrel_offset */
1198 /* 16 bit value resulting from the addend minus the symbol. */
1199 HOWTO (R_PPC_EMB_NADDR16, /* type */
1201 1, /* size (0 = byte, 1 = short, 2 = long) */
1203 FALSE, /* pc_relative */
1205 complain_overflow_bitfield, /* complain_on_overflow */
1206 bfd_elf_generic_reloc, /* special_function */
1207 "R_PPC_EMB_NADDR16", /* name */
1208 FALSE, /* partial_inplace */
1210 0xffff, /* dst_mask */
1211 FALSE), /* pcrel_offset */
1213 /* 16 bit value resulting from the addend minus the symbol. */
1214 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1216 1, /* size (0 = byte, 1 = short, 2 = long) */
1218 FALSE, /* pc_relative */
1220 complain_overflow_dont,/* complain_on_overflow */
1221 bfd_elf_generic_reloc, /* special_function */
1222 "R_PPC_EMB_ADDR16_LO", /* name */
1223 FALSE, /* partial_inplace */
1225 0xffff, /* dst_mask */
1226 FALSE), /* pcrel_offset */
1228 /* The high order 16 bits of the addend minus the symbol. */
1229 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1230 16, /* rightshift */
1231 1, /* size (0 = byte, 1 = short, 2 = long) */
1233 FALSE, /* pc_relative */
1235 complain_overflow_dont, /* complain_on_overflow */
1236 bfd_elf_generic_reloc, /* special_function */
1237 "R_PPC_EMB_NADDR16_HI", /* name */
1238 FALSE, /* partial_inplace */
1240 0xffff, /* dst_mask */
1241 FALSE), /* pcrel_offset */
1243 /* The high order 16 bits of the result of the addend minus the address,
1244 plus 1 if the contents of the low 16 bits, treated as a signed number,
1246 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1247 16, /* rightshift */
1248 1, /* size (0 = byte, 1 = short, 2 = long) */
1250 FALSE, /* pc_relative */
1252 complain_overflow_dont, /* complain_on_overflow */
1253 ppc_elf_addr16_ha_reloc, /* special_function */
1254 "R_PPC_EMB_NADDR16_HA", /* name */
1255 FALSE, /* partial_inplace */
1257 0xffff, /* dst_mask */
1258 FALSE), /* pcrel_offset */
1260 /* 16 bit value resulting from allocating a 4 byte word to hold an
1261 address in the .sdata section, and returning the offset from
1262 _SDA_BASE_ for that relocation. */
1263 HOWTO (R_PPC_EMB_SDAI16, /* type */
1265 1, /* size (0 = byte, 1 = short, 2 = long) */
1267 FALSE, /* pc_relative */
1269 complain_overflow_bitfield, /* complain_on_overflow */
1270 bfd_elf_generic_reloc, /* special_function */
1271 "R_PPC_EMB_SDAI16", /* name */
1272 FALSE, /* partial_inplace */
1274 0xffff, /* dst_mask */
1275 FALSE), /* pcrel_offset */
1277 /* 16 bit value resulting from allocating a 4 byte word to hold an
1278 address in the .sdata2 section, and returning the offset from
1279 _SDA2_BASE_ for that relocation. */
1280 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1282 1, /* size (0 = byte, 1 = short, 2 = long) */
1284 FALSE, /* pc_relative */
1286 complain_overflow_bitfield, /* complain_on_overflow */
1287 bfd_elf_generic_reloc, /* special_function */
1288 "R_PPC_EMB_SDA2I16", /* name */
1289 FALSE, /* partial_inplace */
1291 0xffff, /* dst_mask */
1292 FALSE), /* pcrel_offset */
1294 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1295 small data items. */
1296 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1298 1, /* size (0 = byte, 1 = short, 2 = long) */
1300 FALSE, /* pc_relative */
1302 complain_overflow_signed, /* complain_on_overflow */
1303 bfd_elf_generic_reloc, /* special_function */
1304 "R_PPC_EMB_SDA2REL", /* name */
1305 FALSE, /* partial_inplace */
1307 0xffff, /* dst_mask */
1308 FALSE), /* pcrel_offset */
1310 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1311 signed offset from the appropriate base, and filling in the register
1312 field with the appropriate register (0, 2, or 13). */
1313 HOWTO (R_PPC_EMB_SDA21, /* type */
1315 2, /* size (0 = byte, 1 = short, 2 = long) */
1317 FALSE, /* pc_relative */
1319 complain_overflow_signed, /* complain_on_overflow */
1320 bfd_elf_generic_reloc, /* special_function */
1321 "R_PPC_EMB_SDA21", /* name */
1322 FALSE, /* partial_inplace */
1324 0xffff, /* dst_mask */
1325 FALSE), /* pcrel_offset */
1327 /* Relocation not handled: R_PPC_EMB_MRKREF */
1328 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1329 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1330 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1331 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1332 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1334 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1335 in the 16 bit signed offset from the appropriate base, and filling in the
1336 register field with the appropriate register (0, 2, or 13). */
1337 HOWTO (R_PPC_EMB_RELSDA, /* type */
1339 1, /* size (0 = byte, 1 = short, 2 = long) */
1341 TRUE, /* pc_relative */
1343 complain_overflow_signed, /* complain_on_overflow */
1344 bfd_elf_generic_reloc, /* special_function */
1345 "R_PPC_EMB_RELSDA", /* name */
1346 FALSE, /* partial_inplace */
1348 0xffff, /* dst_mask */
1349 FALSE), /* pcrel_offset */
1351 /* A 16 bit relative relocation. */
1352 HOWTO (R_PPC_REL16, /* type */
1354 1, /* size (0 = byte, 1 = short, 2 = long) */
1356 TRUE, /* pc_relative */
1358 complain_overflow_bitfield, /* complain_on_overflow */
1359 bfd_elf_generic_reloc, /* special_function */
1360 "R_PPC_REL16", /* name */
1361 FALSE, /* partial_inplace */
1363 0xffff, /* dst_mask */
1364 TRUE), /* pcrel_offset */
1366 /* A 16 bit relative relocation without overflow. */
1367 HOWTO (R_PPC_REL16_LO, /* type */
1369 1, /* size (0 = byte, 1 = short, 2 = long) */
1371 TRUE, /* pc_relative */
1373 complain_overflow_dont,/* complain_on_overflow */
1374 bfd_elf_generic_reloc, /* special_function */
1375 "R_PPC_REL16_LO", /* name */
1376 FALSE, /* partial_inplace */
1378 0xffff, /* dst_mask */
1379 TRUE), /* pcrel_offset */
1381 /* The high order 16 bits of a relative address. */
1382 HOWTO (R_PPC_REL16_HI, /* type */
1383 16, /* rightshift */
1384 1, /* size (0 = byte, 1 = short, 2 = long) */
1386 TRUE, /* pc_relative */
1388 complain_overflow_dont, /* complain_on_overflow */
1389 bfd_elf_generic_reloc, /* special_function */
1390 "R_PPC_REL16_HI", /* name */
1391 FALSE, /* partial_inplace */
1393 0xffff, /* dst_mask */
1394 TRUE), /* pcrel_offset */
1396 /* The high order 16 bits of a relative address, plus 1 if the contents of
1397 the low 16 bits, treated as a signed number, is negative. */
1398 HOWTO (R_PPC_REL16_HA, /* type */
1399 16, /* rightshift */
1400 1, /* size (0 = byte, 1 = short, 2 = long) */
1402 TRUE, /* pc_relative */
1404 complain_overflow_dont, /* complain_on_overflow */
1405 ppc_elf_addr16_ha_reloc, /* special_function */
1406 "R_PPC_REL16_HA", /* name */
1407 FALSE, /* partial_inplace */
1409 0xffff, /* dst_mask */
1410 TRUE), /* pcrel_offset */
1412 /* GNU extension to record C++ vtable hierarchy. */
1413 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1415 0, /* size (0 = byte, 1 = short, 2 = long) */
1417 FALSE, /* pc_relative */
1419 complain_overflow_dont, /* complain_on_overflow */
1420 NULL, /* special_function */
1421 "R_PPC_GNU_VTINHERIT", /* name */
1422 FALSE, /* partial_inplace */
1425 FALSE), /* pcrel_offset */
1427 /* GNU extension to record C++ vtable member usage. */
1428 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1430 0, /* size (0 = byte, 1 = short, 2 = long) */
1432 FALSE, /* pc_relative */
1434 complain_overflow_dont, /* complain_on_overflow */
1435 NULL, /* special_function */
1436 "R_PPC_GNU_VTENTRY", /* name */
1437 FALSE, /* partial_inplace */
1440 FALSE), /* pcrel_offset */
1442 /* Phony reloc to handle AIX style TOC entries. */
1443 HOWTO (R_PPC_TOC16, /* type */
1445 1, /* size (0 = byte, 1 = short, 2 = long) */
1447 FALSE, /* pc_relative */
1449 complain_overflow_signed, /* complain_on_overflow */
1450 bfd_elf_generic_reloc, /* special_function */
1451 "R_PPC_TOC16", /* name */
1452 FALSE, /* partial_inplace */
1454 0xffff, /* dst_mask */
1455 FALSE), /* pcrel_offset */
1458 /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1461 ppc_elf_howto_init (void)
1463 unsigned int i, type;
1466 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1469 type = ppc_elf_howto_raw[i].type;
1470 if (type >= (sizeof (ppc_elf_howto_table)
1471 / sizeof (ppc_elf_howto_table[0])))
1473 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1477 static reloc_howto_type *
1478 ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1479 bfd_reloc_code_real_type code)
1481 enum elf_ppc_reloc_type r;
1483 /* Initialize howto table if not already done. */
1484 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1485 ppc_elf_howto_init ();
1492 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1493 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1494 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1495 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1496 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1497 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1498 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1499 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1500 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1501 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1502 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1503 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1504 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1505 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1506 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1507 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1508 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1509 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1510 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1511 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1512 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1513 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1514 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1515 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1516 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1517 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1518 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1519 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1520 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1521 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1522 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1523 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1524 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1525 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1526 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1527 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
1528 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1529 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1530 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1531 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1532 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1533 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1534 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1535 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1536 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1537 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1538 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1539 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1540 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1541 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1542 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1543 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1544 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1545 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1546 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1547 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1548 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1549 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1550 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1551 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1552 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1553 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1554 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1555 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1556 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1557 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1558 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1559 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1560 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1561 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1562 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1563 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1564 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1565 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1566 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1567 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1568 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1569 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1570 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
1571 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
1572 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
1573 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
1574 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
1575 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
1576 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
1579 return ppc_elf_howto_table[r];
1582 static reloc_howto_type *
1583 ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1589 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1591 if (ppc_elf_howto_raw[i].name != NULL
1592 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
1593 return &ppc_elf_howto_raw[i];
1598 /* Set the howto pointer for a PowerPC ELF reloc. */
1601 ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1603 Elf_Internal_Rela *dst)
1605 /* Initialize howto table if not already done. */
1606 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1607 ppc_elf_howto_init ();
1609 BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
1610 cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
1612 /* Just because the above assert didn't trigger doesn't mean that
1613 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
1614 if (!cache_ptr->howto)
1616 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
1617 abfd, ELF32_R_TYPE (dst->r_info));
1618 bfd_set_error (bfd_error_bad_value);
1620 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
1624 /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
1626 static bfd_reloc_status_type
1627 ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
1628 arelent *reloc_entry,
1630 void *data ATTRIBUTE_UNUSED,
1631 asection *input_section,
1633 char **error_message ATTRIBUTE_UNUSED)
1637 if (output_bfd != NULL)
1639 reloc_entry->address += input_section->output_offset;
1640 return bfd_reloc_ok;
1643 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
1644 return bfd_reloc_outofrange;
1646 if (bfd_is_com_section (symbol->section))
1649 relocation = symbol->value;
1651 relocation += symbol->section->output_section->vma;
1652 relocation += symbol->section->output_offset;
1653 relocation += reloc_entry->addend;
1654 if (reloc_entry->howto->pc_relative)
1655 relocation -= reloc_entry->address;
1657 reloc_entry->addend += (relocation & 0x8000) << 1;
1659 return bfd_reloc_continue;
1662 static bfd_reloc_status_type
1663 ppc_elf_unhandled_reloc (bfd *abfd,
1664 arelent *reloc_entry,
1667 asection *input_section,
1669 char **error_message)
1671 /* If this is a relocatable link (output_bfd test tells us), just
1672 call the generic function. Any adjustment will be done at final
1674 if (output_bfd != NULL)
1675 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
1676 input_section, output_bfd, error_message);
1678 if (error_message != NULL)
1680 static char buf[60];
1681 sprintf (buf, _("generic linker can't handle %s"),
1682 reloc_entry->howto->name);
1683 *error_message = buf;
1685 return bfd_reloc_dangerous;
1688 /* Sections created by the linker. */
1690 typedef struct elf_linker_section
1692 /* Pointer to the bfd section. */
1696 /* Associated bss section name. */
1697 const char *bss_name;
1698 /* Associated symbol name. */
1699 const char *sym_name;
1700 /* Associated symbol. */
1701 struct elf_link_hash_entry *sym;
1702 } elf_linker_section_t;
1704 /* Linked list of allocated pointer entries. This hangs off of the
1705 symbol lists, and provides allows us to return different pointers,
1706 based on different addend's. */
1708 typedef struct elf_linker_section_pointers
1710 /* next allocated pointer for this symbol */
1711 struct elf_linker_section_pointers *next;
1712 /* offset of pointer from beginning of section */
1716 /* which linker section this is */
1717 elf_linker_section_t *lsect;
1718 } elf_linker_section_pointers_t;
1720 struct ppc_elf_obj_tdata
1722 struct elf_obj_tdata elf;
1724 /* A mapping from local symbols to offsets into the various linker
1725 sections added. This is index by the symbol index. */
1726 elf_linker_section_pointers_t **linker_section_pointers;
1728 /* Flags used to auto-detect plt type. */
1729 unsigned int makes_plt_call : 1;
1730 unsigned int has_rel16 : 1;
1733 #define ppc_elf_tdata(bfd) \
1734 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
1736 #define elf_local_ptr_offsets(bfd) \
1737 (ppc_elf_tdata (bfd)->linker_section_pointers)
1739 /* Override the generic function because we store some extras. */
1742 ppc_elf_mkobject (bfd *abfd)
1744 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
1748 /* Fix bad default arch selected for a 32 bit input bfd when the
1749 default is 64 bit. */
1752 ppc_elf_object_p (bfd *abfd)
1754 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
1756 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
1758 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
1760 /* Relies on arch after 64 bit default being 32 bit default. */
1761 abfd->arch_info = abfd->arch_info->next;
1762 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
1768 /* Function to set whether a module needs the -mrelocatable bit set. */
1771 ppc_elf_set_private_flags (bfd *abfd, flagword flags)
1773 BFD_ASSERT (!elf_flags_init (abfd)
1774 || elf_elfheader (abfd)->e_flags == flags);
1776 elf_elfheader (abfd)->e_flags = flags;
1777 elf_flags_init (abfd) = TRUE;
1781 /* Support for core dump NOTE sections. */
1784 ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1789 switch (note->descsz)
1794 case 268: /* Linux/PPC. */
1796 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
1799 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
1808 /* Make a ".reg/999" section. */
1809 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1810 size, note->descpos + offset);
1814 ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1816 switch (note->descsz)
1821 case 128: /* Linux/PPC elf_prpsinfo. */
1822 elf_tdata (abfd)->core_program
1823 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
1824 elf_tdata (abfd)->core_command
1825 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
1828 /* Note that for some reason, a spurious space is tacked
1829 onto the end of the args in some (at least one anyway)
1830 implementations, so strip it off if it exists. */
1833 char *command = elf_tdata (abfd)->core_command;
1834 int n = strlen (command);
1836 if (0 < n && command[n - 1] == ' ')
1837 command[n - 1] = '\0';
1844 ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
1856 va_start (ap, note_type);
1857 memset (data, 0, 32);
1858 strncpy (data + 32, va_arg (ap, const char *), 16);
1859 strncpy (data + 48, va_arg (ap, const char *), 80);
1861 return elfcore_write_note (abfd, buf, bufsiz,
1862 "CORE", note_type, data, sizeof (data));
1873 va_start (ap, note_type);
1874 memset (data, 0, 72);
1875 pid = va_arg (ap, long);
1876 bfd_put_32 (abfd, pid, data + 24);
1877 cursig = va_arg (ap, int);
1878 bfd_put_16 (abfd, cursig, data + 12);
1879 greg = va_arg (ap, const void *);
1880 memcpy (data + 72, greg, 192);
1881 memset (data + 264, 0, 4);
1883 return elfcore_write_note (abfd, buf, bufsiz,
1884 "CORE", note_type, data, sizeof (data));
1889 /* Return address for Ith PLT stub in section PLT, for relocation REL
1890 or (bfd_vma) -1 if it should not be included. */
1893 ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
1894 const asection *plt ATTRIBUTE_UNUSED,
1897 return rel->address;
1900 /* Handle a PowerPC specific section when reading an object file. This
1901 is called when bfd_section_from_shdr finds a section with an unknown
1905 ppc_elf_section_from_shdr (bfd *abfd,
1906 Elf_Internal_Shdr *hdr,
1913 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
1916 newsect = hdr->bfd_section;
1917 flags = bfd_get_section_flags (abfd, newsect);
1918 if (hdr->sh_flags & SHF_EXCLUDE)
1919 flags |= SEC_EXCLUDE;
1921 if (hdr->sh_type == SHT_ORDERED)
1922 flags |= SEC_SORT_ENTRIES;
1924 bfd_set_section_flags (abfd, newsect, flags);
1928 /* Set up any other section flags and such that may be necessary. */
1931 ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1932 Elf_Internal_Shdr *shdr,
1935 if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE)
1936 shdr->sh_flags |= SHF_EXCLUDE;
1938 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
1939 shdr->sh_type = SHT_ORDERED;
1944 /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
1945 need to bump up the number of section headers. */
1948 ppc_elf_additional_program_headers (bfd *abfd,
1949 struct bfd_link_info *info ATTRIBUTE_UNUSED)
1954 s = bfd_get_section_by_name (abfd, ".sbss2");
1955 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
1958 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
1959 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
1965 /* Add extra PPC sections -- Note, for now, make .sbss2 and
1966 .PPC.EMB.sbss0 a normal section, and not a bss section so
1967 that the linker doesn't crater when trying to make more than
1970 static const struct bfd_elf_special_section ppc_elf_special_sections[] =
1972 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
1973 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
1974 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
1975 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
1976 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
1977 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
1978 { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 },
1979 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
1980 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
1981 { NULL, 0, 0, 0, 0 }
1984 /* This is what we want for new plt/got. */
1985 static struct bfd_elf_special_section ppc_alt_plt =
1986 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
1988 static const struct bfd_elf_special_section *
1989 ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1991 const struct bfd_elf_special_section *ssect;
1993 /* See if this is one of the special sections. */
1994 if (sec->name == NULL)
1997 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2001 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2002 ssect = &ppc_alt_plt;
2006 return _bfd_elf_get_sec_type_attr (abfd, sec);
2009 /* Very simple linked list structure for recording apuinfo values. */
2010 typedef struct apuinfo_list
2012 struct apuinfo_list *next;
2013 unsigned long value;
2017 static apuinfo_list *head;
2021 apuinfo_list_init (void)
2027 apuinfo_list_add (unsigned long value)
2029 apuinfo_list *entry = head;
2031 while (entry != NULL)
2033 if (entry->value == value)
2035 entry = entry->next;
2038 entry = bfd_malloc (sizeof (* entry));
2042 entry->value = value;
2048 apuinfo_list_length (void)
2050 apuinfo_list *entry;
2051 unsigned long count;
2053 for (entry = head, count = 0;
2055 entry = entry->next)
2061 static inline unsigned long
2062 apuinfo_list_element (unsigned long number)
2064 apuinfo_list * entry;
2068 entry = entry->next)
2071 return entry ? entry->value : 0;
2075 apuinfo_list_finish (void)
2077 apuinfo_list *entry;
2079 for (entry = head; entry;)
2081 apuinfo_list *next = entry->next;
2089 #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2090 #define APUINFO_LABEL "APUinfo"
2092 /* Scan the input BFDs and create a linked list of
2093 the APUinfo values that will need to be emitted. */
2096 ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2101 unsigned num_input_sections;
2102 bfd_size_type output_section_size;
2104 unsigned num_entries;
2105 unsigned long offset;
2106 unsigned long length;
2107 const char *error_message = NULL;
2109 if (link_info == NULL)
2112 /* Scan the input bfds, looking for apuinfo sections. */
2113 num_input_sections = 0;
2114 output_section_size = 0;
2116 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
2118 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2121 ++ num_input_sections;
2122 output_section_size += asec->size;
2126 /* We need at least one input sections
2127 in order to make merging worthwhile. */
2128 if (num_input_sections < 1)
2131 /* Just make sure that the output section exists as well. */
2132 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2136 /* Allocate a buffer for the contents of the input sections. */
2137 buffer = bfd_malloc (output_section_size);
2142 apuinfo_list_init ();
2144 /* Read in the input sections contents. */
2145 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
2147 unsigned long datum;
2150 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2154 length = asec->size;
2157 error_message = _("corrupt or empty %s section in %B");
2161 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
2162 || (bfd_bread (buffer + offset, length, ibfd) != length))
2164 error_message = _("unable to read in %s section from %B");
2168 /* Process the contents of the section. */
2169 ptr = buffer + offset;
2170 error_message = _("corrupt %s section in %B");
2172 /* Verify the contents of the header. Note - we have to
2173 extract the values this way in order to allow for a
2174 host whose endian-ness is different from the target. */
2175 datum = bfd_get_32 (ibfd, ptr);
2176 if (datum != sizeof APUINFO_LABEL)
2179 datum = bfd_get_32 (ibfd, ptr + 8);
2183 if (strcmp (ptr + 12, APUINFO_LABEL) != 0)
2186 /* Get the number of bytes used for apuinfo entries. */
2187 datum = bfd_get_32 (ibfd, ptr + 4);
2188 if (datum + 20 != length)
2191 /* Make sure that we do not run off the end of the section. */
2192 if (offset + length > output_section_size)
2195 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2196 for (i = 0; i < datum; i += 4)
2197 apuinfo_list_add (bfd_get_32 (ibfd, ptr + 20 + i));
2199 /* Update the offset. */
2203 error_message = NULL;
2205 /* Compute the size of the output section. */
2206 num_entries = apuinfo_list_length ();
2207 output_section_size = 20 + num_entries * 4;
2209 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2211 if (! bfd_set_section_size (abfd, asec, output_section_size))
2213 error_message = _("warning: unable to set size of %s section in %B");
2219 (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
2222 /* Prevent the output section from accumulating the input sections'
2223 contents. We have already stored this in our linked list structure. */
2226 ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
2227 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2229 bfd_byte *contents ATTRIBUTE_UNUSED)
2231 return (apuinfo_list_length ()
2232 && strcmp (asec->name, APUINFO_SECTION_NAME) == 0);
2235 /* Finally we can generate the output section. */
2238 ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
2243 unsigned num_entries;
2244 bfd_size_type length;
2246 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2250 if (apuinfo_list_length () == 0)
2253 length = asec->size;
2257 buffer = bfd_malloc (length);
2260 (*_bfd_error_handler)
2261 (_("failed to allocate space for new APUinfo section."));
2265 /* Create the apuinfo header. */
2266 num_entries = apuinfo_list_length ();
2267 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2268 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2269 bfd_put_32 (abfd, 0x2, buffer + 8);
2270 strcpy ((char *) buffer + 12, APUINFO_LABEL);
2273 for (i = 0; i < num_entries; i++)
2275 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2279 if (length != asec->size)
2280 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
2282 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2283 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
2287 apuinfo_list_finish ();
2290 /* The following functions are specific to the ELF linker, while
2291 functions above are used generally. They appear in this file more
2292 or less in the order in which they are called. eg.
2293 ppc_elf_check_relocs is called early in the link process,
2294 ppc_elf_finish_dynamic_sections is one of the last functions
2297 /* The PPC linker needs to keep track of the number of relocs that it
2298 decides to copy as dynamic relocs in check_relocs for each symbol.
2299 This is so that it can later discard them if they are found to be
2300 unnecessary. We store the information in a field extending the
2301 regular ELF linker hash table. */
2303 struct ppc_elf_dyn_relocs
2305 struct ppc_elf_dyn_relocs *next;
2307 /* The input section of the reloc. */
2310 /* Total number of relocs copied for the input section. */
2311 bfd_size_type count;
2313 /* Number of pc-relative relocs copied for the input section. */
2314 bfd_size_type pc_count;
2317 /* Track PLT entries needed for a given symbol. We might need more
2318 than one glink entry per symbol. */
2321 struct plt_entry *next;
2323 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
2324 This field stores the offset into .got2 used to initialise the
2325 GOT pointer reg. It will always be at least 32768 (and for
2326 current gcc this is the only offset used). */
2329 /* The .got2 section. */
2332 /* PLT refcount or offset. */
2335 bfd_signed_vma refcount;
2339 /* .glink stub offset. */
2340 bfd_vma glink_offset;
2343 /* Of those relocs that might be copied as dynamic relocs, this macro
2344 selects those that must be copied when linking a shared library,
2345 even when the symbol is local. */
2347 #define MUST_BE_DYN_RELOC(RTYPE) \
2348 ((RTYPE) != R_PPC_REL24 \
2349 && (RTYPE) != R_PPC_REL14 \
2350 && (RTYPE) != R_PPC_REL14_BRTAKEN \
2351 && (RTYPE) != R_PPC_REL14_BRNTAKEN \
2352 && (RTYPE) != R_PPC_REL32)
2354 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2355 copying dynamic variables from a shared lib into an app's dynbss
2356 section, and instead use a dynamic relocation to point into the
2358 #define ELIMINATE_COPY_RELOCS 1
2360 /* PPC ELF linker hash entry. */
2362 struct ppc_elf_link_hash_entry
2364 struct elf_link_hash_entry elf;
2366 /* If this symbol is used in the linker created sections, the processor
2367 specific backend uses this field to map the field into the offset
2368 from the beginning of the section. */
2369 elf_linker_section_pointers_t *linker_section_pointer;
2371 /* Track dynamic relocs copied for this symbol. */
2372 struct ppc_elf_dyn_relocs *dyn_relocs;
2374 /* Contexts in which symbol is used in the GOT (or TOC).
2375 TLS_GD .. TLS_TLS bits are or'd into the mask as the
2376 corresponding relocs are encountered during check_relocs.
2377 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2378 indicate the corresponding GOT entry type is not needed. */
2379 #define TLS_GD 1 /* GD reloc. */
2380 #define TLS_LD 2 /* LD reloc. */
2381 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
2382 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2383 #define TLS_TLS 16 /* Any TLS reloc. */
2384 #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
2387 /* Nonzero if we have seen a small data relocation referring to this
2389 unsigned char has_sda_refs;
2392 #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
2394 /* PPC ELF linker hash table. */
2396 struct ppc_elf_link_hash_table
2398 struct elf_link_hash_table elf;
2400 /* Short-cuts to get to dynamic linker sections. */
2410 elf_linker_section_t sdata[2];
2413 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
2416 /* The .got.plt section (VxWorks only)*/
2419 /* Shortcut to .__tls_get_addr. */
2420 struct elf_link_hash_entry *tls_get_addr;
2422 /* The bfd that forced an old-style PLT. */
2425 /* TLS local dynamic got entry handling. */
2427 bfd_signed_vma refcount;
2431 /* Offset of PltResolve function in glink. */
2432 bfd_vma glink_pltresolve;
2434 /* Size of reserved GOT entries. */
2435 unsigned int got_header_size;
2436 /* Non-zero if allocating the header left a gap. */
2437 unsigned int got_gap;
2439 /* The type of PLT we have chosen to use. */
2440 enum ppc_elf_plt_type plt_type;
2442 /* Set if we should emit symbols for stubs. */
2443 unsigned int emit_stub_syms:1;
2445 /* True if the target system is VxWorks. */
2446 unsigned int is_vxworks:1;
2448 /* The size of PLT entries. */
2450 /* The distance between adjacent PLT slots. */
2452 /* The size of the first PLT entry. */
2453 int plt_initial_entry_size;
2455 /* Small local sym to section mapping cache. */
2456 struct sym_sec_cache sym_sec;
2459 /* Get the PPC ELF linker hash table from a link_info structure. */
2461 #define ppc_elf_hash_table(p) \
2462 ((struct ppc_elf_link_hash_table *) (p)->hash)
2464 /* Create an entry in a PPC ELF linker hash table. */
2466 static struct bfd_hash_entry *
2467 ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2468 struct bfd_hash_table *table,
2471 /* Allocate the structure if it has not already been allocated by a
2475 entry = bfd_hash_allocate (table,
2476 sizeof (struct ppc_elf_link_hash_entry));
2481 /* Call the allocation method of the superclass. */
2482 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2485 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
2486 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
2487 ppc_elf_hash_entry (entry)->tls_mask = 0;
2493 /* Create a PPC ELF linker hash table. */
2495 static struct bfd_link_hash_table *
2496 ppc_elf_link_hash_table_create (bfd *abfd)
2498 struct ppc_elf_link_hash_table *ret;
2500 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
2504 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
2505 ppc_elf_link_hash_newfunc,
2506 sizeof (struct ppc_elf_link_hash_entry)))
2512 ret->elf.init_plt_refcount.refcount = 0;
2513 ret->elf.init_plt_refcount.glist = NULL;
2514 ret->elf.init_plt_offset.offset = 0;
2515 ret->elf.init_plt_offset.glist = NULL;
2517 ret->sdata[0].name = ".sdata";
2518 ret->sdata[0].sym_name = "_SDA_BASE_";
2519 ret->sdata[0].bss_name = ".sbss";
2521 ret->sdata[1].name = ".sdata2";
2522 ret->sdata[1].sym_name = "_SDA2_BASE_";
2523 ret->sdata[1].bss_name = ".sbss2";
2525 ret->plt_entry_size = 12;
2526 ret->plt_slot_size = 8;
2527 ret->plt_initial_entry_size = 72;
2529 return &ret->elf.root;
2532 /* Create .got and the related sections. */
2535 ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
2537 struct ppc_elf_link_hash_table *htab;
2541 if (!_bfd_elf_create_got_section (abfd, info))
2544 htab = ppc_elf_hash_table (info);
2545 htab->got = s = bfd_get_section_by_name (abfd, ".got");
2549 if (htab->is_vxworks)
2551 htab->sgotplt = bfd_get_section_by_name (abfd, ".got.plt");
2557 /* The powerpc .got has a blrl instruction in it. Mark it
2559 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
2560 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2561 if (!bfd_set_section_flags (abfd, s, flags))
2565 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2566 | SEC_LINKER_CREATED | SEC_READONLY);
2567 htab->relgot = bfd_make_section_with_flags (abfd, ".rela.got", flags);
2569 || ! bfd_set_section_alignment (abfd, htab->relgot, 2))
2575 /* We have to create .dynsbss and .rela.sbss here so that they get mapped
2576 to output sections (just like _bfd_elf_create_dynamic_sections has
2577 to create .dynbss and .rela.bss). */
2580 ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2582 struct ppc_elf_link_hash_table *htab;
2586 htab = ppc_elf_hash_table (info);
2588 if (htab->got == NULL
2589 && !ppc_elf_create_got (abfd, info))
2592 if (!_bfd_elf_create_dynamic_sections (abfd, info))
2595 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
2596 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2598 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags | SEC_CODE);
2601 || !bfd_set_section_alignment (abfd, s, 4))
2604 htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss");
2605 s = bfd_make_section_with_flags (abfd, ".dynsbss",
2606 SEC_ALLOC | SEC_LINKER_CREATED);
2613 htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss");
2614 s = bfd_make_section_with_flags (abfd, ".rela.sbss", flags);
2617 || ! bfd_set_section_alignment (abfd, s, 2))
2621 if (htab->is_vxworks
2622 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2625 htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2626 htab->plt = s = bfd_get_section_by_name (abfd, ".plt");
2630 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
2631 if (htab->plt_type == PLT_VXWORKS)
2632 /* The VxWorks PLT is a loaded section with contents. */
2633 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
2634 return bfd_set_section_flags (abfd, s, flags);
2637 /* Copy the extra info we tack onto an elf_link_hash_entry. */
2640 ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
2641 struct elf_link_hash_entry *dir,
2642 struct elf_link_hash_entry *ind)
2644 struct ppc_elf_link_hash_entry *edir, *eind;
2646 edir = (struct ppc_elf_link_hash_entry *) dir;
2647 eind = (struct ppc_elf_link_hash_entry *) ind;
2649 if (eind->dyn_relocs != NULL)
2651 if (edir->dyn_relocs != NULL)
2653 struct ppc_elf_dyn_relocs **pp;
2654 struct ppc_elf_dyn_relocs *p;
2656 /* Add reloc counts against the indirect sym to the direct sym
2657 list. Merge any entries against the same section. */
2658 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
2660 struct ppc_elf_dyn_relocs *q;
2662 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2663 if (q->sec == p->sec)
2665 q->pc_count += p->pc_count;
2666 q->count += p->count;
2673 *pp = edir->dyn_relocs;
2676 edir->dyn_relocs = eind->dyn_relocs;
2677 eind->dyn_relocs = NULL;
2680 edir->tls_mask |= eind->tls_mask;
2681 edir->has_sda_refs |= eind->has_sda_refs;
2683 /* If called to transfer flags for a weakdef during processing
2684 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
2685 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
2686 if (!(ELIMINATE_COPY_RELOCS
2687 && eind->elf.root.type != bfd_link_hash_indirect
2688 && edir->elf.dynamic_adjusted))
2689 edir->elf.non_got_ref |= eind->elf.non_got_ref;
2691 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
2692 edir->elf.ref_regular |= eind->elf.ref_regular;
2693 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
2694 edir->elf.needs_plt |= eind->elf.needs_plt;
2696 /* If we were called to copy over info for a weak sym, that's all. */
2697 if (eind->elf.root.type != bfd_link_hash_indirect)
2700 /* Copy over the GOT refcount entries that we may have already seen to
2701 the symbol which just became indirect. */
2702 edir->elf.got.refcount += eind->elf.got.refcount;
2703 eind->elf.got.refcount = 0;
2705 /* And plt entries. */
2706 if (eind->elf.plt.plist != NULL)
2708 if (edir->elf.plt.plist != NULL)
2710 struct plt_entry **entp;
2711 struct plt_entry *ent;
2713 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
2715 struct plt_entry *dent;
2717 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
2718 if (dent->sec == ent->sec && dent->addend == ent->addend)
2720 dent->plt.refcount += ent->plt.refcount;
2727 *entp = edir->elf.plt.plist;
2730 edir->elf.plt.plist = eind->elf.plt.plist;
2731 eind->elf.plt.plist = NULL;
2734 if (eind->elf.dynindx != -1)
2736 if (edir->elf.dynindx != -1)
2737 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
2738 edir->elf.dynstr_index);
2739 edir->elf.dynindx = eind->elf.dynindx;
2740 edir->elf.dynstr_index = eind->elf.dynstr_index;
2741 eind->elf.dynindx = -1;
2742 eind->elf.dynstr_index = 0;
2746 /* Return 1 if target is one of ours. */
2749 is_ppc_elf_target (const struct bfd_target *targ)
2751 extern const bfd_target bfd_elf32_powerpc_vec;
2752 extern const bfd_target bfd_elf32_powerpc_vxworks_vec;
2753 extern const bfd_target bfd_elf32_powerpcle_vec;
2755 return (targ == &bfd_elf32_powerpc_vec
2756 || targ == &bfd_elf32_powerpc_vxworks_vec
2757 || targ == &bfd_elf32_powerpcle_vec);
2760 /* Hook called by the linker routine which adds symbols from an object
2761 file. We use it to put .comm items in .sbss, and not .bss. */
2764 ppc_elf_add_symbol_hook (bfd *abfd,
2765 struct bfd_link_info *info,
2766 Elf_Internal_Sym *sym,
2767 const char **namep ATTRIBUTE_UNUSED,
2768 flagword *flagsp ATTRIBUTE_UNUSED,
2772 if (sym->st_shndx == SHN_COMMON
2773 && !info->relocatable
2774 && sym->st_size <= elf_gp_size (abfd)
2775 && is_ppc_elf_target (info->output_bfd->xvec))
2777 /* Common symbols less than or equal to -G nn bytes are automatically
2779 struct ppc_elf_link_hash_table *htab;
2781 htab = ppc_elf_hash_table (info);
2782 if (htab->sbss == NULL)
2784 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
2786 if (!htab->elf.dynobj)
2787 htab->elf.dynobj = abfd;
2789 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
2792 if (htab->sbss == NULL)
2797 *valp = sym->st_size;
2804 create_sdata_sym (struct ppc_elf_link_hash_table *htab,
2805 elf_linker_section_t *lsect)
2807 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
2809 if (lsect->sym == NULL)
2811 if (lsect->sym->root.type == bfd_link_hash_new)
2812 lsect->sym->non_elf = 0;
2813 lsect->sym->ref_regular = 1;
2817 /* Create a special linker section. */
2820 ppc_elf_create_linker_section (bfd *abfd,
2821 struct bfd_link_info *info,
2823 elf_linker_section_t *lsect)
2825 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
2828 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2829 | SEC_LINKER_CREATED);
2831 /* Record the first bfd that needs the special sections. */
2832 if (!htab->elf.dynobj)
2833 htab->elf.dynobj = abfd;
2835 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
2839 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
2843 return create_sdata_sym (htab, lsect);
2846 /* Find a linker generated pointer with a given addend and type. */
2848 static elf_linker_section_pointers_t *
2849 elf_find_pointer_linker_section
2850 (elf_linker_section_pointers_t *linker_pointers,
2852 elf_linker_section_t *lsect)
2854 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
2855 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
2856 return linker_pointers;
2861 /* Allocate a pointer to live in a linker created section. */
2864 elf_create_pointer_linker_section (bfd *abfd,
2865 elf_linker_section_t *lsect,
2866 struct elf_link_hash_entry *h,
2867 const Elf_Internal_Rela *rel)
2869 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
2870 elf_linker_section_pointers_t *linker_section_ptr;
2871 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
2874 BFD_ASSERT (lsect != NULL);
2876 /* Is this a global symbol? */
2879 struct ppc_elf_link_hash_entry *eh;
2881 /* Has this symbol already been allocated? If so, our work is done. */
2882 eh = (struct ppc_elf_link_hash_entry *) h;
2883 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
2888 ptr_linker_section_ptr = &eh->linker_section_pointer;
2892 BFD_ASSERT (is_ppc_elf_target (abfd->xvec));
2894 /* Allocation of a pointer to a local symbol. */
2895 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
2897 /* Allocate a table to hold the local symbols if first time. */
2900 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
2903 amt *= sizeof (elf_linker_section_pointers_t *);
2904 ptr = bfd_zalloc (abfd, amt);
2909 elf_local_ptr_offsets (abfd) = ptr;
2912 /* Has this symbol already been allocated? If so, our work is done. */
2913 if (elf_find_pointer_linker_section (ptr[r_symndx],
2918 ptr_linker_section_ptr = &ptr[r_symndx];
2921 /* Allocate space for a pointer in the linker section, and allocate
2922 a new pointer record from internal memory. */
2923 BFD_ASSERT (ptr_linker_section_ptr != NULL);
2924 amt = sizeof (elf_linker_section_pointers_t);
2925 linker_section_ptr = bfd_alloc (abfd, amt);
2927 if (!linker_section_ptr)
2930 linker_section_ptr->next = *ptr_linker_section_ptr;
2931 linker_section_ptr->addend = rel->r_addend;
2932 linker_section_ptr->lsect = lsect;
2933 *ptr_linker_section_ptr = linker_section_ptr;
2935 linker_section_ptr->offset = lsect->section->size;
2936 lsect->section->size += 4;
2940 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
2941 lsect->name, (long) linker_section_ptr->offset,
2942 (long) lsect->section->size);
2949 update_local_sym_info (bfd *abfd,
2950 Elf_Internal_Shdr *symtab_hdr,
2951 unsigned long r_symndx,
2954 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
2955 char *local_got_tls_masks;
2957 if (local_got_refcounts == NULL)
2959 bfd_size_type size = symtab_hdr->sh_info;
2961 size *= sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks);
2962 local_got_refcounts = bfd_zalloc (abfd, size);
2963 if (local_got_refcounts == NULL)
2965 elf_local_got_refcounts (abfd) = local_got_refcounts;
2968 local_got_refcounts[r_symndx] += 1;
2969 local_got_tls_masks = (char *) (local_got_refcounts + symtab_hdr->sh_info);
2970 local_got_tls_masks[r_symndx] |= tls_type;
2975 update_plt_info (bfd *abfd, struct elf_link_hash_entry *h,
2976 asection *sec, bfd_vma addend)
2978 struct plt_entry *ent;
2982 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
2983 if (ent->sec == sec && ent->addend == addend)
2987 bfd_size_type amt = sizeof (*ent);
2988 ent = bfd_alloc (abfd, amt);
2991 ent->next = h->plt.plist;
2993 ent->addend = addend;
2994 ent->plt.refcount = 0;
2997 ent->plt.refcount += 1;
3001 static struct plt_entry *
3002 find_plt_ent (struct elf_link_hash_entry *h, asection *sec, bfd_vma addend)
3004 struct plt_entry *ent;
3008 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
3009 if (ent->sec == sec && ent->addend == addend)
3015 bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3017 (*_bfd_error_handler)
3018 (_("%B: relocation %s cannot be used when making a shared object"),
3020 ppc_elf_howto_table[r_type]->name);
3021 bfd_set_error (bfd_error_bad_value);
3024 /* Look through the relocs for a section during the first phase, and
3025 allocate space in the global offset table or procedure linkage
3029 ppc_elf_check_relocs (bfd *abfd,
3030 struct bfd_link_info *info,
3032 const Elf_Internal_Rela *relocs)
3034 struct ppc_elf_link_hash_table *htab;
3035 Elf_Internal_Shdr *symtab_hdr;
3036 struct elf_link_hash_entry **sym_hashes;
3037 const Elf_Internal_Rela *rel;
3038 const Elf_Internal_Rela *rel_end;
3039 asection *got2, *sreloc;
3041 if (info->relocatable)
3044 /* Don't do anything special with non-loaded, non-alloced sections.
3045 In particular, any relocs in such sections should not affect GOT
3046 and PLT reference counting (ie. we don't allow them to create GOT
3047 or PLT entries), there's no possibility or desire to optimize TLS
3048 relocs, and there's not much point in propagating relocs to shared
3049 libs that the dynamic linker won't relocate. */
3050 if ((sec->flags & SEC_ALLOC) == 0)
3054 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3058 BFD_ASSERT (is_ppc_elf_target (abfd->xvec));
3060 /* Initialize howto table if not already done. */
3061 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3062 ppc_elf_howto_init ();
3064 htab = ppc_elf_hash_table (info);
3065 symtab_hdr = &elf_symtab_hdr (abfd);
3066 sym_hashes = elf_sym_hashes (abfd);
3067 got2 = bfd_get_section_by_name (abfd, ".got2");
3070 rel_end = relocs + sec->reloc_count;
3071 for (rel = relocs; rel < rel_end; rel++)
3073 unsigned long r_symndx;
3074 enum elf_ppc_reloc_type r_type;
3075 struct elf_link_hash_entry *h;
3078 r_symndx = ELF32_R_SYM (rel->r_info);
3079 if (r_symndx < symtab_hdr->sh_info)
3083 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3084 while (h->root.type == bfd_link_hash_indirect
3085 || h->root.type == bfd_link_hash_warning)
3086 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3089 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3090 This shows up in particular in an R_PPC_ADDR32 in the eabi
3093 && htab->got == NULL
3094 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3096 if (htab->elf.dynobj == NULL)
3097 htab->elf.dynobj = abfd;
3098 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3100 BFD_ASSERT (h == htab->elf.hgot);
3103 r_type = ELF32_R_TYPE (rel->r_info);
3106 case R_PPC_GOT_TLSLD16:
3107 case R_PPC_GOT_TLSLD16_LO:
3108 case R_PPC_GOT_TLSLD16_HI:
3109 case R_PPC_GOT_TLSLD16_HA:
3110 tls_type = TLS_TLS | TLS_LD;
3113 case R_PPC_GOT_TLSGD16:
3114 case R_PPC_GOT_TLSGD16_LO:
3115 case R_PPC_GOT_TLSGD16_HI:
3116 case R_PPC_GOT_TLSGD16_HA:
3117 tls_type = TLS_TLS | TLS_GD;
3120 case R_PPC_GOT_TPREL16:
3121 case R_PPC_GOT_TPREL16_LO:
3122 case R_PPC_GOT_TPREL16_HI:
3123 case R_PPC_GOT_TPREL16_HA:
3125 info->flags |= DF_STATIC_TLS;
3126 tls_type = TLS_TLS | TLS_TPREL;
3129 case R_PPC_GOT_DTPREL16:
3130 case R_PPC_GOT_DTPREL16_LO:
3131 case R_PPC_GOT_DTPREL16_HI:
3132 case R_PPC_GOT_DTPREL16_HA:
3133 tls_type = TLS_TLS | TLS_DTPREL;
3135 sec->has_tls_reloc = 1;
3138 /* GOT16 relocations */
3140 case R_PPC_GOT16_LO:
3141 case R_PPC_GOT16_HI:
3142 case R_PPC_GOT16_HA:
3143 /* This symbol requires a global offset table entry. */
3144 if (htab->got == NULL)
3146 if (htab->elf.dynobj == NULL)
3147 htab->elf.dynobj = abfd;
3148 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3153 h->got.refcount += 1;
3154 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
3157 /* This is a global offset table entry for a local symbol. */
3158 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
3162 /* Indirect .sdata relocation. */
3163 case R_PPC_EMB_SDAI16:
3166 bad_shared_reloc (abfd, r_type);
3169 if (htab->sdata[0].section == NULL
3170 && !ppc_elf_create_linker_section (abfd, info, 0,
3173 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
3178 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3179 h->non_got_ref = TRUE;
3183 /* Indirect .sdata2 relocation. */
3184 case R_PPC_EMB_SDA2I16:
3187 bad_shared_reloc (abfd, r_type);
3190 if (htab->sdata[1].section == NULL
3191 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3194 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
3199 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3200 h->non_got_ref = TRUE;
3204 case R_PPC_SDAREL16:
3207 bad_shared_reloc (abfd, r_type);
3210 if (htab->sdata[0].sym == NULL
3211 && !create_sdata_sym (htab, &htab->sdata[0]))
3215 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3216 h->non_got_ref = TRUE;
3220 case R_PPC_EMB_SDA2REL:
3223 bad_shared_reloc (abfd, r_type);
3226 if (htab->sdata[1].sym == NULL
3227 && !create_sdata_sym (htab, &htab->sdata[1]))
3231 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3232 h->non_got_ref = TRUE;
3236 case R_PPC_EMB_SDA21:
3237 case R_PPC_EMB_RELSDA:
3240 bad_shared_reloc (abfd, r_type);
3243 if (htab->sdata[0].sym == NULL
3244 && !create_sdata_sym (htab, &htab->sdata[0]))
3246 if (htab->sdata[1].sym == NULL
3247 && !create_sdata_sym (htab, &htab->sdata[1]))
3251 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3252 h->non_got_ref = TRUE;
3256 case R_PPC_EMB_NADDR32:
3257 case R_PPC_EMB_NADDR16:
3258 case R_PPC_EMB_NADDR16_LO:
3259 case R_PPC_EMB_NADDR16_HI:
3260 case R_PPC_EMB_NADDR16_HA:
3263 bad_shared_reloc (abfd, r_type);
3267 h->non_got_ref = TRUE;
3271 case R_PPC_PLTREL24:
3272 case R_PPC_PLTREL32:
3273 case R_PPC_PLT16_LO:
3274 case R_PPC_PLT16_HI:
3275 case R_PPC_PLT16_HA:
3277 fprintf (stderr, "Reloc requires a PLT entry\n");
3279 /* This symbol requires a procedure linkage table entry. We
3280 actually build the entry in finish_dynamic_symbol,
3281 because this might be a case of linking PIC code without
3282 linking in any dynamic objects, in which case we don't
3283 need to generate a procedure linkage table after all. */
3287 /* It does not make sense to have a procedure linkage
3288 table entry for a local symbol. */
3289 (*_bfd_error_handler) (_("%B(%A+0x%lx): %s reloc against "
3293 (long) rel->r_offset,
3294 ppc_elf_howto_table[r_type]->name);
3295 bfd_set_error (bfd_error_bad_value);
3302 if (r_type == R_PPC_PLTREL24)
3304 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3305 addend = rel->r_addend;
3308 if (!update_plt_info (abfd, h, got2, addend))
3313 /* The following relocations don't need to propagate the
3314 relocation if linking a shared object since they are
3315 section relative. */
3317 case R_PPC_SECTOFF_LO:
3318 case R_PPC_SECTOFF_HI:
3319 case R_PPC_SECTOFF_HA:
3320 case R_PPC_DTPREL16:
3321 case R_PPC_DTPREL16_LO:
3322 case R_PPC_DTPREL16_HI:
3323 case R_PPC_DTPREL16_HA:
3328 case R_PPC_REL16_LO:
3329 case R_PPC_REL16_HI:
3330 case R_PPC_REL16_HA:
3331 ppc_elf_tdata (abfd)->has_rel16 = 1;
3334 /* These are just markers. */
3336 case R_PPC_EMB_MRKREF:
3341 /* These should only appear in dynamic objects. */
3343 case R_PPC_GLOB_DAT:
3344 case R_PPC_JMP_SLOT:
3345 case R_PPC_RELATIVE:
3348 /* These aren't handled yet. We'll report an error later. */
3350 case R_PPC_EMB_RELSEC16:
3351 case R_PPC_EMB_RELST_LO:
3352 case R_PPC_EMB_RELST_HI:
3353 case R_PPC_EMB_RELST_HA:
3354 case R_PPC_EMB_BIT_FLD:
3357 /* This refers only to functions defined in the shared library. */
3358 case R_PPC_LOCAL24PC:
3359 if (h && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
3361 htab->plt_type = PLT_OLD;
3362 htab->old_bfd = abfd;
3366 /* This relocation describes the C++ object vtable hierarchy.
3367 Reconstruct it for later use during GC. */
3368 case R_PPC_GNU_VTINHERIT:
3369 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3373 /* This relocation describes which C++ vtable entries are actually
3374 used. Record for later use during GC. */
3375 case R_PPC_GNU_VTENTRY:
3376 BFD_ASSERT (h != NULL);
3378 && !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, *in_attrs;
3604 obj_attribute *out_attr, *out_attrs;
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 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
3619 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
3621 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
3622 non-conflicting ones. */
3623 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
3624 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
3625 if (in_attr->i != out_attr->i)
3628 if (out_attr->i == 0)
3629 out_attr->i = in_attr->i;
3630 else if (in_attr->i == 0)
3632 else if (out_attr->i == 1 && in_attr->i == 2)
3634 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
3635 else if (out_attr->i == 2 && in_attr->i == 1)
3637 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
3638 else if (in_attr->i > 2)
3640 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
3644 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
3648 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
3649 merge non-conflicting ones. */
3650 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
3651 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
3652 if (in_attr->i != out_attr->i)
3654 const char *in_abi = NULL, *out_abi = NULL;
3658 case 1: in_abi = "generic"; break;
3659 case 2: in_abi = "AltiVec"; break;
3660 case 3: in_abi = "SPE"; break;
3663 switch (out_attr->i)
3665 case 1: out_abi = "generic"; break;
3666 case 2: out_abi = "AltiVec"; break;
3667 case 3: out_abi = "SPE"; break;
3671 if (out_attr->i == 0)
3672 out_attr->i = in_attr->i;
3673 else if (in_attr->i == 0)
3675 /* For now, allow generic to transition to AltiVec or SPE
3676 without a warning. If GCC marked files with their stack
3677 alignment and used don't-care markings for files which are
3678 not affected by the vector ABI, we could warn about this
3680 else if (out_attr->i == 1)
3681 out_attr->i = in_attr->i;
3682 else if (in_attr->i == 1)
3684 else if (in_abi == NULL)
3686 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
3688 else if (out_abi == NULL)
3690 (_("Warning: %B uses unknown vector ABI %d"), obfd,
3694 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
3695 ibfd, obfd, in_abi, out_abi);
3698 /* Merge Tag_compatibility attributes and any common GNU ones. */
3699 _bfd_elf_merge_object_attributes (ibfd, obfd);
3704 /* Merge backend specific data from an object file to the output
3705 object file when linking. */
3708 ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3714 if (!is_ppc_elf_target (ibfd->xvec)
3715 || !is_ppc_elf_target (obfd->xvec))
3718 /* Check if we have the same endianess. */
3719 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
3722 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
3725 new_flags = elf_elfheader (ibfd)->e_flags;
3726 old_flags = elf_elfheader (obfd)->e_flags;
3727 if (!elf_flags_init (obfd))
3729 /* First call, no flags set. */
3730 elf_flags_init (obfd) = TRUE;
3731 elf_elfheader (obfd)->e_flags = new_flags;
3734 /* Compatible flags are ok. */
3735 else if (new_flags == old_flags)
3738 /* Incompatible flags. */
3741 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
3742 to be linked with either. */
3744 if ((new_flags & EF_PPC_RELOCATABLE) != 0
3745 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
3748 (*_bfd_error_handler)
3749 (_("%B: compiled with -mrelocatable and linked with "
3750 "modules compiled normally"), ibfd);
3752 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
3753 && (old_flags & EF_PPC_RELOCATABLE) != 0)
3756 (*_bfd_error_handler)
3757 (_("%B: compiled normally and linked with "
3758 "modules compiled with -mrelocatable"), ibfd);
3761 /* The output is -mrelocatable-lib iff both the input files are. */
3762 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
3763 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
3765 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
3766 but each input file is either -mrelocatable or -mrelocatable-lib. */
3767 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
3768 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
3769 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
3770 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
3772 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
3773 any module uses it. */
3774 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
3776 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
3777 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
3779 /* Warn about any other mismatches. */
3780 if (new_flags != old_flags)
3783 (*_bfd_error_handler)
3784 (_("%B: uses different e_flags (0x%lx) fields "
3785 "than previous modules (0x%lx)"),
3786 ibfd, (long) new_flags, (long) old_flags);
3791 bfd_set_error (bfd_error_bad_value);
3799 /* Choose which PLT scheme to use, and set .plt flags appropriately.
3800 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
3802 ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
3803 struct bfd_link_info *info,
3804 enum ppc_elf_plt_type plt_style,
3807 struct ppc_elf_link_hash_table *htab;
3810 htab = ppc_elf_hash_table (info);
3812 if (htab->plt_type == PLT_UNSET)
3814 if (plt_style == PLT_OLD)
3815 htab->plt_type = PLT_OLD;
3819 enum ppc_elf_plt_type plt_type = plt_style;
3821 /* Look through the reloc flags left by ppc_elf_check_relocs.
3822 Use the old style bss plt if a file makes plt calls
3823 without using the new relocs, and if ld isn't given
3824 --secure-plt and we never see REL16 relocs. */
3825 if (plt_type == PLT_UNSET)
3827 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
3828 if (is_ppc_elf_target (ibfd->xvec))
3830 if (ppc_elf_tdata (ibfd)->has_rel16)
3832 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
3835 htab->old_bfd = ibfd;
3839 htab->plt_type = plt_type;
3842 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
3843 info->callbacks->info (_("Using bss-plt due to %B"), htab->old_bfd);
3845 htab->emit_stub_syms = emit_stub_syms;
3847 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
3849 if (htab->plt_type == PLT_NEW)
3851 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
3852 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3854 /* The new PLT is a loaded section. */
3855 if (htab->plt != NULL
3856 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
3859 /* The new GOT is not executable. */
3860 if (htab->got != NULL
3861 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
3866 /* Stop an unused .glink section from affecting .text alignment. */
3867 if (htab->glink != NULL
3868 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
3871 return htab->plt_type == PLT_NEW;
3874 /* Return the section that should be marked against GC for a given
3878 ppc_elf_gc_mark_hook (asection *sec,
3879 struct bfd_link_info *info,
3880 Elf_Internal_Rela *rel,
3881 struct elf_link_hash_entry *h,
3882 Elf_Internal_Sym *sym)
3885 switch (ELF32_R_TYPE (rel->r_info))
3887 case R_PPC_GNU_VTINHERIT:
3888 case R_PPC_GNU_VTENTRY:
3892 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3895 /* Update the got, plt and dynamic reloc reference counts for the
3896 section being removed. */
3899 ppc_elf_gc_sweep_hook (bfd *abfd,
3900 struct bfd_link_info *info,
3902 const Elf_Internal_Rela *relocs)
3904 struct ppc_elf_link_hash_table *htab;
3905 Elf_Internal_Shdr *symtab_hdr;
3906 struct elf_link_hash_entry **sym_hashes;
3907 bfd_signed_vma *local_got_refcounts;
3908 const Elf_Internal_Rela *rel, *relend;
3911 if (info->relocatable)
3914 if ((sec->flags & SEC_ALLOC) == 0)
3917 elf_section_data (sec)->local_dynrel = NULL;
3919 htab = ppc_elf_hash_table (info);
3920 symtab_hdr = &elf_symtab_hdr (abfd);
3921 sym_hashes = elf_sym_hashes (abfd);
3922 local_got_refcounts = elf_local_got_refcounts (abfd);
3923 got2 = bfd_get_section_by_name (abfd, ".got2");
3925 relend = relocs + sec->reloc_count;
3926 for (rel = relocs; rel < relend; rel++)
3928 unsigned long r_symndx;
3929 enum elf_ppc_reloc_type r_type;
3930 struct elf_link_hash_entry *h = NULL;
3932 r_symndx = ELF32_R_SYM (rel->r_info);
3933 if (r_symndx >= symtab_hdr->sh_info)
3935 struct ppc_elf_dyn_relocs **pp, *p;
3936 struct ppc_elf_link_hash_entry *eh;
3938 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3939 while (h->root.type == bfd_link_hash_indirect
3940 || h->root.type == bfd_link_hash_warning)
3941 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3942 eh = (struct ppc_elf_link_hash_entry *) h;
3944 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3947 /* Everything must go for SEC. */
3953 r_type = ELF32_R_TYPE (rel->r_info);
3956 case R_PPC_GOT_TLSLD16:
3957 case R_PPC_GOT_TLSLD16_LO:
3958 case R_PPC_GOT_TLSLD16_HI:
3959 case R_PPC_GOT_TLSLD16_HA:
3960 case R_PPC_GOT_TLSGD16:
3961 case R_PPC_GOT_TLSGD16_LO:
3962 case R_PPC_GOT_TLSGD16_HI:
3963 case R_PPC_GOT_TLSGD16_HA:
3964 case R_PPC_GOT_TPREL16:
3965 case R_PPC_GOT_TPREL16_LO:
3966 case R_PPC_GOT_TPREL16_HI:
3967 case R_PPC_GOT_TPREL16_HA:
3968 case R_PPC_GOT_DTPREL16:
3969 case R_PPC_GOT_DTPREL16_LO:
3970 case R_PPC_GOT_DTPREL16_HI:
3971 case R_PPC_GOT_DTPREL16_HA:
3973 case R_PPC_GOT16_LO:
3974 case R_PPC_GOT16_HI:
3975 case R_PPC_GOT16_HA:
3978 if (h->got.refcount > 0)
3981 else if (local_got_refcounts != NULL)
3983 if (local_got_refcounts[r_symndx] > 0)
3984 local_got_refcounts[r_symndx]--;
3990 case R_PPC_REL14_BRTAKEN:
3991 case R_PPC_REL14_BRNTAKEN:
3993 if (h == NULL || h == htab->elf.hgot)
4000 case R_PPC_ADDR16_LO:
4001 case R_PPC_ADDR16_HI:
4002 case R_PPC_ADDR16_HA:
4004 case R_PPC_ADDR14_BRTAKEN:
4005 case R_PPC_ADDR14_BRNTAKEN:
4012 case R_PPC_PLTREL24:
4013 case R_PPC_PLTREL32:
4014 case R_PPC_PLT16_LO:
4015 case R_PPC_PLT16_HI:
4016 case R_PPC_PLT16_HA:
4019 bfd_vma addend = r_type == R_PPC_PLTREL24 ? rel->r_addend : 0;
4020 struct plt_entry *ent = find_plt_ent (h, got2, addend);
4021 if (ent->plt.refcount > 0)
4022 ent->plt.refcount -= 1;
4033 /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
4036 ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
4038 struct ppc_elf_link_hash_table *htab;
4040 htab = ppc_elf_hash_table (info);
4041 if (htab->plt_type == PLT_NEW
4042 && htab->plt != NULL
4043 && htab->plt->output_section != NULL)
4045 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
4046 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
4049 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4050 FALSE, FALSE, TRUE);
4051 return _bfd_elf_tls_setup (obfd, info);
4054 /* Run through all the TLS relocs looking for optimization
4058 ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
4059 struct bfd_link_info *info)
4063 struct ppc_elf_link_hash_table *htab;
4066 if (info->relocatable || info->shared)
4069 htab = ppc_elf_hash_table (info);
4070 /* Make two passes through the relocs. First time check that tls
4071 relocs involved in setting up a tls_get_addr call are indeed
4072 followed by such a call. If they are not, exclude them from
4073 the optimizations done on the second pass. */
4074 for (pass = 0; pass < 2; ++pass)
4075 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4077 Elf_Internal_Sym *locsyms = NULL;
4078 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
4080 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
4081 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
4083 Elf_Internal_Rela *relstart, *rel, *relend;
4085 /* Read the relocations. */
4086 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
4088 if (relstart == NULL)
4091 relend = relstart + sec->reloc_count;
4092 for (rel = relstart; rel < relend; rel++)
4094 enum elf_ppc_reloc_type r_type;
4095 unsigned long r_symndx;
4096 struct elf_link_hash_entry *h = NULL;
4098 char tls_set, tls_clear;
4099 bfd_boolean is_local;
4100 int expecting_tls_get_addr;
4101 bfd_signed_vma *got_count;
4103 r_symndx = ELF32_R_SYM (rel->r_info);
4104 if (r_symndx >= symtab_hdr->sh_info)
4106 struct elf_link_hash_entry **sym_hashes;
4108 sym_hashes = elf_sym_hashes (ibfd);
4109 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4110 while (h->root.type == bfd_link_hash_indirect
4111 || h->root.type == bfd_link_hash_warning)
4112 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4115 expecting_tls_get_addr = 0;
4121 r_type = ELF32_R_TYPE (rel->r_info);
4124 case R_PPC_GOT_TLSLD16:
4125 case R_PPC_GOT_TLSLD16_LO:
4126 expecting_tls_get_addr = 1;
4129 case R_PPC_GOT_TLSLD16_HI:
4130 case R_PPC_GOT_TLSLD16_HA:
4131 /* These relocs should never be against a symbol
4132 defined in a shared lib. Leave them alone if
4133 that turns out to be the case. */
4142 case R_PPC_GOT_TLSGD16:
4143 case R_PPC_GOT_TLSGD16_LO:
4144 expecting_tls_get_addr = 1;
4147 case R_PPC_GOT_TLSGD16_HI:
4148 case R_PPC_GOT_TLSGD16_HA:
4154 tls_set = TLS_TLS | TLS_TPRELGD;
4158 case R_PPC_GOT_TPREL16:
4159 case R_PPC_GOT_TPREL16_LO:
4160 case R_PPC_GOT_TPREL16_HI:
4161 case R_PPC_GOT_TPREL16_HA:
4166 tls_clear = TLS_TPREL;
4178 if (!expecting_tls_get_addr)
4181 if (rel + 1 < relend)
4183 enum elf_ppc_reloc_type r_type2;
4184 unsigned long r_symndx2;
4185 struct elf_link_hash_entry *h2;
4187 /* The next instruction should be a call to
4188 __tls_get_addr. Peek at the reloc to be sure. */
4189 r_type2 = ELF32_R_TYPE (rel[1].r_info);
4190 r_symndx2 = ELF32_R_SYM (rel[1].r_info);
4191 if (r_symndx2 >= symtab_hdr->sh_info
4192 && (r_type2 == R_PPC_REL14
4193 || r_type2 == R_PPC_REL14_BRTAKEN
4194 || r_type2 == R_PPC_REL14_BRNTAKEN
4195 || r_type2 == R_PPC_REL24
4196 || r_type2 == R_PPC_PLTREL24))
4198 struct elf_link_hash_entry **sym_hashes;
4200 sym_hashes = elf_sym_hashes (ibfd);
4201 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
4202 while (h2->root.type == bfd_link_hash_indirect
4203 || h2->root.type == bfd_link_hash_warning)
4204 h2 = ((struct elf_link_hash_entry *)
4206 if (h2 == htab->tls_get_addr)
4211 /* Uh oh, we didn't find the expected call. We
4212 could just mark this symbol to exclude it
4213 from tls optimization but it's safer to skip
4214 the entire section. */
4215 sec->has_tls_reloc = 0;
4221 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
4222 got_count = &h->got.refcount;
4226 Elf_Internal_Sym *sym;
4227 bfd_signed_vma *lgot_refs;
4230 if (locsyms == NULL)
4232 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4233 if (locsyms == NULL)
4234 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4235 symtab_hdr->sh_info,
4236 0, NULL, NULL, NULL);
4237 if (locsyms == NULL)
4239 if (elf_section_data (sec)->relocs != relstart)
4244 sym = locsyms + r_symndx;
4245 lgot_refs = elf_local_got_refcounts (ibfd);
4246 if (lgot_refs == NULL)
4248 lgot_masks = (char *) (lgot_refs + symtab_hdr->sh_info);
4249 tls_mask = &lgot_masks[r_symndx];
4250 got_count = &lgot_refs[r_symndx];
4255 /* We managed to get rid of a got entry. */
4260 if (expecting_tls_get_addr)
4262 struct plt_entry *ent;
4264 ent = find_plt_ent (htab->tls_get_addr, NULL, 0);
4265 if (ent != NULL && ent->plt.refcount > 0)
4266 ent->plt.refcount -= 1;
4269 *tls_mask |= tls_set;
4270 *tls_mask &= ~tls_clear;
4273 if (elf_section_data (sec)->relocs != relstart)
4278 && (symtab_hdr->contents != (unsigned char *) locsyms))
4280 if (!info->keep_memory)
4283 symtab_hdr->contents = (unsigned char *) locsyms;
4289 /* Adjust a symbol defined by a dynamic object and referenced by a
4290 regular object. The current definition is in some section of the
4291 dynamic object, but we're not including those sections. We have to
4292 change the definition to something the rest of the link can
4296 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4297 struct elf_link_hash_entry *h)
4299 struct ppc_elf_link_hash_table *htab;
4303 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
4304 h->root.root.string);
4307 /* Make sure we know what is going on here. */
4308 htab = ppc_elf_hash_table (info);
4309 BFD_ASSERT (htab->elf.dynobj != NULL
4311 || h->u.weakdef != NULL
4314 && !h->def_regular)));
4316 /* Deal with function syms. */
4317 if (h->type == STT_FUNC
4320 /* Clear procedure linkage table information for any symbol that
4321 won't need a .plt entry. */
4322 struct plt_entry *ent;
4323 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4324 if (ent->plt.refcount > 0)
4327 || SYMBOL_CALLS_LOCAL (info, h)
4328 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4329 && h->root.type == bfd_link_hash_undefweak))
4331 /* A PLT entry is not required/allowed when:
4333 1. We are not using ld.so; because then the PLT entry
4334 can't be set up, so we can't use one. In this case,
4335 ppc_elf_adjust_dynamic_symbol won't even be called.
4337 2. GC has rendered the entry unused.
4339 3. We know for certain that a call to this symbol
4340 will go to this object, or will remain undefined. */
4341 h->plt.plist = NULL;
4347 h->plt.plist = NULL;
4349 /* If this is a weak symbol, and there is a real definition, the
4350 processor independent code will have arranged for us to see the
4351 real definition first, and we can just use the same value. */
4352 if (h->u.weakdef != NULL)
4354 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
4355 || h->u.weakdef->root.type == bfd_link_hash_defweak);
4356 h->root.u.def.section = h->u.weakdef->root.u.def.section;
4357 h->root.u.def.value = h->u.weakdef->root.u.def.value;
4358 if (ELIMINATE_COPY_RELOCS)
4359 h->non_got_ref = h->u.weakdef->non_got_ref;
4363 /* This is a reference to a symbol defined by a dynamic object which
4364 is not a function. */
4366 /* If we are creating a shared library, we must presume that the
4367 only references to the symbol are via the global offset table.
4368 For such cases we need not do anything here; the relocations will
4369 be handled correctly by relocate_section. */
4373 /* If there are no references to this symbol that do not use the
4374 GOT, we don't need to generate a copy reloc. */
4375 if (!h->non_got_ref)
4378 /* If we didn't find any dynamic relocs in read-only sections, then
4379 we'll be keeping the dynamic relocs and avoiding the copy reloc.
4380 We can't do this if there are any small data relocations. This
4381 doesn't work on VxWorks, where we can not have dynamic
4382 relocations (other than copy and jump slot relocations) in an
4384 if (ELIMINATE_COPY_RELOCS
4385 && !ppc_elf_hash_entry (h)->has_sda_refs
4386 && !htab->is_vxworks)
4388 struct ppc_elf_dyn_relocs *p;
4389 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
4391 s = p->sec->output_section;
4392 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4405 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
4406 h->root.root.string);
4410 /* We must allocate the symbol in our .dynbss section, which will
4411 become part of the .bss section of the executable. There will be
4412 an entry for this symbol in the .dynsym section. The dynamic
4413 object will contain position independent code, so all references
4414 from the dynamic object to this symbol will go through the global
4415 offset table. The dynamic linker will use the .dynsym entry to
4416 determine the address it must put in the global offset table, so
4417 both the dynamic object and the regular object will refer to the
4418 same memory location for the variable.
4420 Of course, if the symbol is referenced using SDAREL relocs, we
4421 must instead allocate it in .sbss. */
4423 if (ppc_elf_hash_entry (h)->has_sda_refs)
4427 BFD_ASSERT (s != NULL);
4429 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
4430 copy the initial value out of the dynamic object and into the
4431 runtime process image. We need to remember the offset into the
4432 .rela.bss section we are going to use. */
4433 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4437 if (ppc_elf_hash_entry (h)->has_sda_refs)
4438 srel = htab->relsbss;
4440 srel = htab->relbss;
4441 BFD_ASSERT (srel != NULL);
4442 srel->size += sizeof (Elf32_External_Rela);
4446 return _bfd_elf_adjust_dynamic_copy (h, s);
4449 /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
4450 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
4451 specifying the addend on the plt relocation. For -fpic code, the sym
4452 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
4453 xxxxxxxx.got2.plt_pic32.<callee>. */
4456 add_stub_sym (struct plt_entry *ent,
4457 struct elf_link_hash_entry *h,
4458 struct bfd_link_info *info)
4460 struct elf_link_hash_entry *sh;
4461 size_t len1, len2, len3;
4464 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
4466 if (info->shared || info->pie)
4467 stub = ".plt_pic32.";
4469 stub = ".plt_call32.";
4471 len1 = strlen (h->root.root.string);
4472 len2 = strlen (stub);
4475 len3 = strlen (ent->sec->name);
4476 name = bfd_malloc (len1 + len2 + len3 + 9);
4479 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
4481 memcpy (name + 8, ent->sec->name, len3);
4482 memcpy (name + 8 + len3, stub, len2);
4483 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
4484 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
4487 if (sh->root.type == bfd_link_hash_new)
4489 sh->root.type = bfd_link_hash_defined;
4490 sh->root.u.def.section = htab->glink;
4491 sh->root.u.def.value = ent->glink_offset;
4492 sh->ref_regular = 1;
4493 sh->def_regular = 1;
4494 sh->ref_regular_nonweak = 1;
4495 sh->forced_local = 1;
4501 /* Allocate NEED contiguous space in .got, and return the offset.
4502 Handles allocation of the got header when crossing 32k. */
4505 allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
4508 unsigned int max_before_header;
4510 if (htab->plt_type == PLT_VXWORKS)
4512 where = htab->got->size;
4513 htab->got->size += need;
4517 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
4518 if (need <= htab->got_gap)
4520 where = max_before_header - htab->got_gap;
4521 htab->got_gap -= need;
4525 if (htab->got->size + need > max_before_header
4526 && htab->got->size <= max_before_header)
4528 htab->got_gap = max_before_header - htab->got->size;
4529 htab->got->size = max_before_header + htab->got_header_size;
4531 where = htab->got->size;
4532 htab->got->size += need;
4538 /* Allocate space in associated reloc sections for dynamic relocs. */
4541 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
4543 struct bfd_link_info *info = inf;
4544 struct ppc_elf_link_hash_entry *eh;
4545 struct ppc_elf_link_hash_table *htab;
4546 struct ppc_elf_dyn_relocs *p;
4548 if (h->root.type == bfd_link_hash_indirect)
4551 if (h->root.type == bfd_link_hash_warning)
4552 /* When warning symbols are created, they **replace** the "real"
4553 entry in the hash table, thus we never get to see the real
4554 symbol in a hash traversal. So look at it now. */
4555 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4557 htab = ppc_elf_hash_table (info);
4558 if (htab->elf.dynamic_sections_created)
4560 struct plt_entry *ent;
4561 bfd_boolean doneone = FALSE;
4562 bfd_vma plt_offset = 0, glink_offset = 0;
4564 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4565 if (ent->plt.refcount > 0)
4567 /* Make sure this symbol is output as a dynamic symbol. */
4568 if (h->dynindx == -1
4569 && !h->forced_local)
4571 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4576 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
4578 asection *s = htab->plt;
4580 if (htab->plt_type == PLT_NEW)
4584 plt_offset = s->size;
4587 ent->plt.offset = plt_offset;
4590 if (!doneone || info->shared || info->pie)
4592 glink_offset = s->size;
4593 s->size += GLINK_ENTRY_SIZE;
4599 h->root.u.def.section = s;
4600 h->root.u.def.value = glink_offset;
4602 ent->glink_offset = glink_offset;
4604 if (htab->emit_stub_syms
4605 && !add_stub_sym (ent, h, info))
4612 /* If this is the first .plt entry, make room
4613 for the special first entry. */
4615 s->size += htab->plt_initial_entry_size;
4617 /* The PowerPC PLT is actually composed of two
4618 parts, the first part is 2 words (for a load
4619 and a jump), and then there is a remaining
4620 word available at the end. */
4621 plt_offset = (htab->plt_initial_entry_size
4622 + (htab->plt_slot_size
4624 - htab->plt_initial_entry_size)
4625 / htab->plt_entry_size)));
4627 /* If this symbol is not defined in a regular
4628 file, and we are not generating a shared
4629 library, then set the symbol to this location
4630 in the .plt. This is required to make
4631 function pointers compare as equal between
4632 the normal executable and the shared library. */
4636 h->root.u.def.section = s;
4637 h->root.u.def.value = plt_offset;
4640 /* Make room for this entry. */
4641 s->size += htab->plt_entry_size;
4642 /* After the 8192nd entry, room for two entries
4644 if (htab->plt_type == PLT_OLD
4645 && (s->size - htab->plt_initial_entry_size)
4646 / htab->plt_entry_size
4647 > PLT_NUM_SINGLE_ENTRIES)
4648 s->size += htab->plt_entry_size;
4650 ent->plt.offset = plt_offset;
4653 /* We also need to make an entry in the .rela.plt section. */
4656 htab->relplt->size += sizeof (Elf32_External_Rela);
4658 if (htab->plt_type == PLT_VXWORKS)
4660 /* Allocate space for the unloaded relocations. */
4664 == (bfd_vma) htab->plt_initial_entry_size)
4666 htab->srelplt2->size
4667 += sizeof (Elf32_External_Rela)
4668 * VXWORKS_PLTRESOLVE_RELOCS;
4671 htab->srelplt2->size
4672 += sizeof (Elf32_External_Rela)
4673 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS;
4676 /* Every PLT entry has an associated GOT entry in
4678 htab->sgotplt->size += 4;
4684 ent->plt.offset = (bfd_vma) -1;
4687 ent->plt.offset = (bfd_vma) -1;
4691 h->plt.plist = NULL;
4697 h->plt.plist = NULL;
4701 eh = (struct ppc_elf_link_hash_entry *) h;
4702 if (eh->elf.got.refcount > 0)
4704 /* Make sure this symbol is output as a dynamic symbol. */
4705 if (eh->elf.dynindx == -1
4706 && !eh->elf.forced_local)
4708 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
4712 if (eh->tls_mask == (TLS_TLS | TLS_LD)
4713 && !eh->elf.def_dynamic)
4715 /* If just an LD reloc, we'll just use htab->tlsld_got.offset. */
4716 htab->tlsld_got.refcount += 1;
4717 eh->elf.got.offset = (bfd_vma) -1;
4722 unsigned int need = 0;
4723 if ((eh->tls_mask & TLS_TLS) != 0)
4725 if ((eh->tls_mask & TLS_LD) != 0)
4727 if ((eh->tls_mask & TLS_GD) != 0)
4729 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
4731 if ((eh->tls_mask & TLS_DTPREL) != 0)
4736 eh->elf.got.offset = allocate_got (htab, need);
4737 dyn = htab->elf.dynamic_sections_created;
4739 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
4740 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
4741 || eh->elf.root.type != bfd_link_hash_undefweak))
4743 /* All the entries we allocated need relocs.
4744 Except LD only needs one. */
4745 if ((eh->tls_mask & TLS_LD) != 0)
4747 htab->relgot->size += need * (sizeof (Elf32_External_Rela) / 4);
4752 eh->elf.got.offset = (bfd_vma) -1;
4754 if (eh->dyn_relocs == NULL)
4757 /* In the shared -Bsymbolic case, discard space allocated for
4758 dynamic pc-relative relocs against symbols which turn out to be
4759 defined in regular objects. For the normal shared case, discard
4760 space for relocs that have become local due to symbol visibility
4765 /* Relocs that use pc_count are those that appear on a call insn,
4766 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
4767 generated via assembly. We want calls to protected symbols to
4768 resolve directly to the function rather than going via the plt.
4769 If people want function pointer comparisons to work as expected
4770 then they should avoid writing weird assembly. */
4771 if (SYMBOL_CALLS_LOCAL (info, h))
4773 struct ppc_elf_dyn_relocs **pp;
4775 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
4777 p->count -= p->pc_count;
4786 /* Also discard relocs on undefined weak syms with non-default
4788 if (eh->dyn_relocs != NULL
4789 && h->root.type == bfd_link_hash_undefweak)
4791 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4792 eh->dyn_relocs = NULL;
4794 /* Make sure undefined weak symbols are output as a dynamic
4796 else if (h->dynindx == -1
4797 && !h->forced_local)
4799 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4804 else if (ELIMINATE_COPY_RELOCS)
4806 /* For the non-shared case, discard space for relocs against
4807 symbols which turn out to need copy relocs or are not
4814 /* Make sure this symbol is output as a dynamic symbol.
4815 Undefined weak syms won't yet be marked as dynamic. */
4816 if (h->dynindx == -1
4817 && !h->forced_local)
4819 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4823 /* If that succeeded, we know we'll be keeping all the
4825 if (h->dynindx != -1)
4829 eh->dyn_relocs = NULL;
4834 /* Finally, allocate space. */
4835 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4837 asection *sreloc = elf_section_data (p->sec)->sreloc;
4838 sreloc->size += p->count * sizeof (Elf32_External_Rela);
4844 /* Find any dynamic relocs that apply to read-only sections. */
4847 readonly_dynrelocs (struct elf_link_hash_entry *h, void *info)
4849 struct ppc_elf_dyn_relocs *p;
4851 if (h->root.type == bfd_link_hash_indirect)
4854 if (h->root.type == bfd_link_hash_warning)
4855 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4857 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
4859 asection *s = p->sec->output_section;
4862 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
4863 == (SEC_READONLY | SEC_ALLOC)))
4865 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
4867 /* Not an error, just cut short the traversal. */
4874 /* Set the sizes of the dynamic sections. */
4877 ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
4878 struct bfd_link_info *info)
4880 struct ppc_elf_link_hash_table *htab;
4886 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
4889 htab = ppc_elf_hash_table (info);
4890 BFD_ASSERT (htab->elf.dynobj != NULL);
4892 if (elf_hash_table (info)->dynamic_sections_created)
4894 /* Set the contents of the .interp section to the interpreter. */
4895 if (info->executable)
4897 s = bfd_get_section_by_name (htab->elf.dynobj, ".interp");
4898 BFD_ASSERT (s != NULL);
4899 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
4900 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
4904 if (htab->plt_type == PLT_OLD)
4905 htab->got_header_size = 16;
4906 else if (htab->plt_type == PLT_NEW)
4907 htab->got_header_size = 12;
4909 /* Set up .got offsets for local syms, and space for local dynamic
4911 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4913 bfd_signed_vma *local_got;
4914 bfd_signed_vma *end_local_got;
4916 bfd_size_type locsymcount;
4917 Elf_Internal_Shdr *symtab_hdr;
4919 if (!is_ppc_elf_target (ibfd->xvec))
4922 for (s = ibfd->sections; s != NULL; s = s->next)
4924 struct ppc_elf_dyn_relocs *p;
4926 for (p = ((struct ppc_elf_dyn_relocs *)
4927 elf_section_data (s)->local_dynrel);
4931 if (!bfd_is_abs_section (p->sec)
4932 && bfd_is_abs_section (p->sec->output_section))
4934 /* Input section has been discarded, either because
4935 it is a copy of a linkonce section or due to
4936 linker script /DISCARD/, so we'll be discarding
4939 else if (p->count != 0)
4941 elf_section_data (p->sec)->sreloc->size
4942 += p->count * sizeof (Elf32_External_Rela);
4943 if ((p->sec->output_section->flags
4944 & (SEC_READONLY | SEC_ALLOC))
4945 == (SEC_READONLY | SEC_ALLOC))
4946 info->flags |= DF_TEXTREL;
4951 local_got = elf_local_got_refcounts (ibfd);
4955 symtab_hdr = &elf_symtab_hdr (ibfd);
4956 locsymcount = symtab_hdr->sh_info;
4957 end_local_got = local_got + locsymcount;
4958 lgot_masks = (char *) end_local_got;
4959 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
4962 if (*lgot_masks == (TLS_TLS | TLS_LD))
4964 /* If just an LD reloc, we'll just use
4965 htab->tlsld_got.offset. */
4966 htab->tlsld_got.refcount += 1;
4967 *local_got = (bfd_vma) -1;
4971 unsigned int need = 0;
4972 if ((*lgot_masks & TLS_TLS) != 0)
4974 if ((*lgot_masks & TLS_GD) != 0)
4976 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
4978 if ((*lgot_masks & TLS_DTPREL) != 0)
4983 *local_got = allocate_got (htab, need);
4985 htab->relgot->size += (need
4986 * (sizeof (Elf32_External_Rela) / 4));
4990 *local_got = (bfd_vma) -1;
4993 /* Allocate space for global sym dynamic relocs. */
4994 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
4996 if (htab->tlsld_got.refcount > 0)
4998 htab->tlsld_got.offset = allocate_got (htab, 8);
5000 htab->relgot->size += sizeof (Elf32_External_Rela);
5003 htab->tlsld_got.offset = (bfd_vma) -1;
5005 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
5007 unsigned int g_o_t = 32768;
5009 /* If we haven't allocated the header, do so now. When we get here,
5010 for old plt/got the got size will be 0 to 32764 (not allocated),
5011 or 32780 to 65536 (header allocated). For new plt/got, the
5012 corresponding ranges are 0 to 32768 and 32780 to 65536. */
5013 if (htab->got->size <= 32768)
5015 g_o_t = htab->got->size;
5016 if (htab->plt_type == PLT_OLD)
5018 htab->got->size += htab->got_header_size;
5021 htab->elf.hgot->root.u.def.value = g_o_t;
5024 if (htab->glink != NULL && htab->glink->size != 0)
5026 htab->glink_pltresolve = htab->glink->size;
5027 /* Space for the branch table. */
5028 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
5029 /* Pad out to align the start of PLTresolve. */
5030 htab->glink->size += -htab->glink->size & 15;
5031 htab->glink->size += GLINK_PLTRESOLVE;
5033 if (htab->emit_stub_syms)
5035 struct elf_link_hash_entry *sh;
5036 sh = elf_link_hash_lookup (&htab->elf, "__glink",
5037 TRUE, FALSE, FALSE);
5040 if (sh->root.type == bfd_link_hash_new)
5042 sh->root.type = bfd_link_hash_defined;
5043 sh->root.u.def.section = htab->glink;
5044 sh->root.u.def.value = htab->glink_pltresolve;
5045 sh->ref_regular = 1;
5046 sh->def_regular = 1;
5047 sh->ref_regular_nonweak = 1;
5048 sh->forced_local = 1;
5051 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
5052 TRUE, FALSE, FALSE);
5055 if (sh->root.type == bfd_link_hash_new)
5057 sh->root.type = bfd_link_hash_defined;
5058 sh->root.u.def.section = htab->glink;
5059 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
5060 sh->ref_regular = 1;
5061 sh->def_regular = 1;
5062 sh->ref_regular_nonweak = 1;
5063 sh->forced_local = 1;
5069 /* We've now determined the sizes of the various dynamic sections.
5070 Allocate memory for them. */
5072 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
5074 bfd_boolean strip_section = TRUE;
5076 if ((s->flags & SEC_LINKER_CREATED) == 0)
5082 || s == htab->sgotplt
5084 || s == htab->dynbss
5085 || s == htab->dynsbss)
5087 /* We'd like to strip these sections if they aren't needed, but if
5088 we've exported dynamic symbols from them we must leave them.
5089 It's too late to tell BFD to get rid of the symbols. */
5090 if ((s == htab->plt || s == htab->got) && htab->elf.hplt != NULL)
5091 strip_section = FALSE;
5092 /* Strip this section if we don't need it; see the
5095 else if (s == htab->sdata[0].section
5096 || s == htab->sdata[1].section)
5098 /* Strip these too. */
5100 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
5104 /* Remember whether there are any relocation sections. */
5107 /* We use the reloc_count field as a counter if we need
5108 to copy relocs into the output file. */
5114 /* It's not one of our sections, so don't allocate space. */
5118 if (s->size == 0 && strip_section)
5120 /* If we don't need this section, strip it from the
5121 output file. This is mostly to handle .rela.bss and
5122 .rela.plt. We must create both sections in
5123 create_dynamic_sections, because they must be created
5124 before the linker maps input sections to output
5125 sections. The linker does that before
5126 adjust_dynamic_symbol is called, and it is that
5127 function which decides whether anything needs to go
5128 into these sections. */
5129 s->flags |= SEC_EXCLUDE;
5133 if ((s->flags & SEC_HAS_CONTENTS) == 0)
5136 /* Allocate memory for the section contents. */
5137 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
5138 if (s->contents == NULL)
5142 if (htab->elf.dynamic_sections_created)
5144 /* Add some entries to the .dynamic section. We fill in the
5145 values later, in ppc_elf_finish_dynamic_sections, but we
5146 must add the entries now so that we get the correct size for
5147 the .dynamic section. The DT_DEBUG entry is filled in by the
5148 dynamic linker and used by the debugger. */
5149 #define add_dynamic_entry(TAG, VAL) \
5150 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
5152 if (info->executable)
5154 if (!add_dynamic_entry (DT_DEBUG, 0))
5158 if (htab->plt != NULL && htab->plt->size != 0)
5160 if (!add_dynamic_entry (DT_PLTGOT, 0)
5161 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5162 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5163 || !add_dynamic_entry (DT_JMPREL, 0))
5167 if (htab->glink != NULL && htab->glink->size != 0)
5169 if (!add_dynamic_entry (DT_PPC_GOT, 0))
5175 if (!add_dynamic_entry (DT_RELA, 0)
5176 || !add_dynamic_entry (DT_RELASZ, 0)
5177 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
5181 /* If any dynamic relocs apply to a read-only section, then we
5182 need a DT_TEXTREL entry. */
5183 if ((info->flags & DF_TEXTREL) == 0)
5184 elf_link_hash_traverse (elf_hash_table (info), readonly_dynrelocs,
5187 if ((info->flags & DF_TEXTREL) != 0)
5189 if (!add_dynamic_entry (DT_TEXTREL, 0))
5192 if (htab->is_vxworks
5193 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
5196 #undef add_dynamic_entry
5201 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
5203 static const int shared_stub_entry[] =
5205 0x7c0802a6, /* mflr 0 */
5206 0x429f0005, /* bcl 20, 31, .Lxxx */
5207 0x7d6802a6, /* mflr 11 */
5208 0x3d6b0000, /* addis 11, 11, (xxx-.Lxxx)@ha */
5209 0x396b0018, /* addi 11, 11, (xxx-.Lxxx)@l */
5210 0x7c0803a6, /* mtlr 0 */
5211 0x7d6903a6, /* mtctr 11 */
5212 0x4e800420, /* bctr */
5215 static const int stub_entry[] =
5217 0x3d600000, /* lis 11,xxx@ha */
5218 0x396b0000, /* addi 11,11,xxx@l */
5219 0x7d6903a6, /* mtctr 11 */
5220 0x4e800420, /* bctr */
5224 ppc_elf_relax_section (bfd *abfd,
5226 struct bfd_link_info *link_info,
5231 struct one_fixup *next;
5237 Elf_Internal_Shdr *symtab_hdr;
5238 bfd_byte *contents = NULL;
5239 Elf_Internal_Sym *isymbuf = NULL;
5240 Elf_Internal_Rela *internal_relocs = NULL;
5241 Elf_Internal_Rela *irel, *irelend;
5242 struct one_fixup *fixups = NULL;
5243 bfd_boolean changed;
5244 struct ppc_elf_link_hash_table *htab;
5245 bfd_size_type trampoff;
5250 /* Nothing to do if there are no relocations, and no need to do
5251 anything with non-alloc sections. */
5252 if ((isec->flags & SEC_ALLOC) == 0
5253 || (isec->flags & SEC_RELOC) == 0
5254 || isec->reloc_count == 0)
5257 trampoff = (isec->size + 3) & (bfd_vma) -4;
5258 /* Space for a branch around any trampolines. */
5261 symtab_hdr = &elf_symtab_hdr (abfd);
5263 /* Get a copy of the native relocations. */
5264 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
5265 link_info->keep_memory);
5266 if (internal_relocs == NULL)
5269 htab = ppc_elf_hash_table (link_info);
5270 got2 = bfd_get_section_by_name (abfd, ".got2");
5272 irelend = internal_relocs + isec->reloc_count;
5273 for (irel = internal_relocs; irel < irelend; irel++)
5275 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
5276 bfd_vma symaddr, reladdr, toff, roff;
5278 struct one_fixup *f;
5279 size_t insn_offset = 0;
5280 bfd_vma max_branch_offset, val;
5283 unsigned char sym_type;
5288 case R_PPC_LOCAL24PC:
5289 case R_PPC_PLTREL24:
5290 max_branch_offset = 1 << 25;
5294 case R_PPC_REL14_BRTAKEN:
5295 case R_PPC_REL14_BRNTAKEN:
5296 max_branch_offset = 1 << 15;
5303 /* Get the value of the symbol referred to by the reloc. */
5304 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
5306 /* A local symbol. */
5307 Elf_Internal_Sym *isym;
5309 /* Read this BFD's local symbols. */
5310 if (isymbuf == NULL)
5312 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5313 if (isymbuf == NULL)
5314 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
5315 symtab_hdr->sh_info, 0,
5320 isym = isymbuf + ELF32_R_SYM (irel->r_info);
5321 if (isym->st_shndx == SHN_UNDEF)
5322 continue; /* We can't do anything with undefined symbols. */
5323 else if (isym->st_shndx == SHN_ABS)
5324 tsec = bfd_abs_section_ptr;
5325 else if (isym->st_shndx == SHN_COMMON)
5326 tsec = bfd_com_section_ptr;
5328 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
5330 toff = isym->st_value;
5331 sym_type = ELF_ST_TYPE (isym->st_info);
5335 /* Global symbol handling. */
5337 struct elf_link_hash_entry *h;
5339 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
5340 h = elf_sym_hashes (abfd)[indx];
5342 while (h->root.type == bfd_link_hash_indirect
5343 || h->root.type == bfd_link_hash_warning)
5344 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5348 if (r_type == R_PPC_PLTREL24
5349 && htab->plt != NULL)
5351 struct plt_entry *ent = find_plt_ent (h, got2, irel->r_addend);
5355 if (htab->plt_type == PLT_NEW)
5358 toff = ent->glink_offset;
5363 toff = ent->plt.offset;
5369 else if (h->root.type == bfd_link_hash_defined
5370 || h->root.type == bfd_link_hash_defweak)
5372 tsec = h->root.u.def.section;
5373 toff = h->root.u.def.value;
5381 /* If the branch and target are in the same section, you have
5382 no hope of adding stubs. We'll error out later should the
5387 /* There probably isn't any reason to handle symbols in
5388 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
5389 attribute for a code section, and we are only looking at
5390 branches. However, implement it correctly here as a
5391 reference for other target relax_section functions. */
5392 if (0 && tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
5394 /* At this stage in linking, no SEC_MERGE symbol has been
5395 adjusted, so all references to such symbols need to be
5396 passed through _bfd_merged_section_offset. (Later, in
5397 relocate_section, all SEC_MERGE symbols *except* for
5398 section symbols have been adjusted.)
5400 gas may reduce relocations against symbols in SEC_MERGE
5401 sections to a relocation against the section symbol when
5402 the original addend was zero. When the reloc is against
5403 a section symbol we should include the addend in the
5404 offset passed to _bfd_merged_section_offset, since the
5405 location of interest is the original symbol. On the
5406 other hand, an access to "sym+addend" where "sym" is not
5407 a section symbol should not include the addend; Such an
5408 access is presumed to be an offset from "sym"; The
5409 location of interest is just "sym". */
5410 if (sym_type == STT_SECTION)
5411 toff += irel->r_addend;
5413 toff = _bfd_merged_section_offset (abfd, &tsec,
5414 elf_section_data (tsec)->sec_info,
5417 if (sym_type != STT_SECTION)
5418 toff += irel->r_addend;
5420 /* PLTREL24 addends are special. */
5421 else if (r_type != R_PPC_PLTREL24)
5422 toff += irel->r_addend;
5424 /* Attempted -shared link of non-pic code loses. */
5425 if (tsec->output_section == NULL)
5428 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
5430 roff = irel->r_offset;
5431 reladdr = isec->output_section->vma + isec->output_offset + roff;
5433 /* If the branch is in range, no need to do anything. */
5434 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
5437 /* Look for an existing fixup to this address. */
5438 for (f = fixups; f ; f = f->next)
5439 if (f->tsec == tsec && f->toff == toff)
5445 unsigned long stub_rtype;
5447 val = trampoff - roff;
5448 if (val >= max_branch_offset)
5449 /* Oh dear, we can't reach a trampoline. Don't try to add
5450 one. We'll report an error later. */
5453 if (link_info->shared)
5455 size = 4 * ARRAY_SIZE (shared_stub_entry);
5457 stub_rtype = R_PPC_RELAX32PC;
5461 size = 4 * ARRAY_SIZE (stub_entry);
5463 stub_rtype = R_PPC_RELAX32;
5466 if (R_PPC_RELAX32_PLT - R_PPC_RELAX32
5467 != R_PPC_RELAX32PC_PLT - R_PPC_RELAX32PC)
5469 if (tsec == htab->plt
5470 || tsec == htab->glink)
5471 stub_rtype += R_PPC_RELAX32_PLT - R_PPC_RELAX32;
5473 /* Hijack the old relocation. Since we need two
5474 relocations for this use a "composite" reloc. */
5475 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
5477 irel->r_offset = trampoff + insn_offset;
5479 /* Record the fixup so we don't do it again this section. */
5480 f = bfd_malloc (sizeof (*f));
5484 f->trampoff = trampoff;
5491 val = f->trampoff - roff;
5492 if (val >= max_branch_offset)
5495 /* Nop out the reloc, since we're finalizing things here. */
5496 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
5499 /* Get the section contents. */
5500 if (contents == NULL)
5502 /* Get cached copy if it exists. */
5503 if (elf_section_data (isec)->this_hdr.contents != NULL)
5504 contents = elf_section_data (isec)->this_hdr.contents;
5507 /* Go get them off disk. */
5508 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
5513 /* Fix up the existing branch to hit the trampoline. */
5514 hit_addr = contents + roff;
5518 case R_PPC_LOCAL24PC:
5519 case R_PPC_PLTREL24:
5520 t0 = bfd_get_32 (abfd, hit_addr);
5522 t0 |= val & 0x3fffffc;
5523 bfd_put_32 (abfd, t0, hit_addr);
5527 case R_PPC_REL14_BRTAKEN:
5528 case R_PPC_REL14_BRNTAKEN:
5529 t0 = bfd_get_32 (abfd, hit_addr);
5532 bfd_put_32 (abfd, t0, hit_addr);
5537 /* Write out the trampolines. */
5538 changed = fixups != NULL;
5548 struct one_fixup *f = fixups;
5549 fixups = fixups->next;
5554 contents = bfd_realloc (contents, trampoff);
5555 if (contents == NULL)
5558 isec->size = (isec->size + 3) & (bfd_vma) -4;
5559 /* Branch around the trampolines. */
5560 val = trampoff - isec->size + 0x48000000;
5561 dest = contents + isec->size;
5562 isec->size = trampoff;
5563 bfd_put_32 (abfd, val, dest);
5566 if (link_info->shared)
5568 stub = shared_stub_entry;
5569 size = ARRAY_SIZE (shared_stub_entry);
5574 size = ARRAY_SIZE (stub_entry);
5578 while (dest < contents + trampoff)
5580 bfd_put_32 (abfd, stub[i], dest);
5586 BFD_ASSERT (i == 0);
5590 && symtab_hdr->contents != (unsigned char *) isymbuf)
5592 if (! link_info->keep_memory)
5596 /* Cache the symbols for elf_link_input_bfd. */
5597 symtab_hdr->contents = (unsigned char *) isymbuf;
5601 if (contents != NULL
5602 && elf_section_data (isec)->this_hdr.contents != contents)
5604 if (!changed && !link_info->keep_memory)
5608 /* Cache the section contents for elf_link_input_bfd. */
5609 elf_section_data (isec)->this_hdr.contents = contents;
5613 if (elf_section_data (isec)->relocs != internal_relocs)
5616 free (internal_relocs);
5618 elf_section_data (isec)->relocs = internal_relocs;
5625 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
5627 if (contents != NULL
5628 && elf_section_data (isec)->this_hdr.contents != contents)
5630 if (internal_relocs != NULL
5631 && elf_section_data (isec)->relocs != internal_relocs)
5632 free (internal_relocs);
5636 /* What to do when ld finds relocations against symbols defined in
5637 discarded sections. */
5640 ppc_elf_action_discarded (asection *sec)
5642 if (strcmp (".fixup", sec->name) == 0)
5645 if (strcmp (".got2", sec->name) == 0)
5648 return _bfd_elf_default_action_discarded (sec);
5651 /* Fill in the address for a pointer generated in a linker section. */
5654 elf_finish_pointer_linker_section (bfd *input_bfd,
5655 elf_linker_section_t *lsect,
5656 struct elf_link_hash_entry *h,
5658 const Elf_Internal_Rela *rel)
5660 elf_linker_section_pointers_t *linker_section_ptr;
5662 BFD_ASSERT (lsect != NULL);
5666 /* Handle global symbol. */
5667 struct ppc_elf_link_hash_entry *eh;
5669 eh = (struct ppc_elf_link_hash_entry *) h;
5670 BFD_ASSERT (eh->elf.def_regular);
5671 linker_section_ptr = eh->linker_section_pointer;
5675 /* Handle local symbol. */
5676 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
5678 BFD_ASSERT (is_ppc_elf_target (input_bfd->xvec));
5679 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
5680 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
5683 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
5686 BFD_ASSERT (linker_section_ptr != NULL);
5688 /* Offset will always be a multiple of four, so use the bottom bit
5689 as a "written" flag. */
5690 if ((linker_section_ptr->offset & 1) == 0)
5692 bfd_put_32 (lsect->section->owner,
5693 relocation + linker_section_ptr->addend,
5694 lsect->section->contents + linker_section_ptr->offset);
5695 linker_section_ptr->offset += 1;
5698 relocation = (lsect->section->output_offset
5699 + linker_section_ptr->offset - 1
5704 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
5705 lsect->name, (long) relocation, (long) relocation);
5708 /* Subtract out the addend, because it will get added back in by the normal
5710 return relocation - linker_section_ptr->addend;
5713 /* The RELOCATE_SECTION function is called by the ELF backend linker
5714 to handle the relocations for a section.
5716 The relocs are always passed as Rela structures; if the section
5717 actually uses Rel structures, the r_addend field will always be
5720 This function is responsible for adjust the section contents as
5721 necessary, and (if using Rela relocs and generating a
5722 relocatable output file) adjusting the reloc addend as
5725 This function does not have to worry about setting the reloc
5726 address or the reloc symbol index.
5728 LOCAL_SYMS is a pointer to the swapped in local symbols.
5730 LOCAL_SECTIONS is an array giving the section in the input file
5731 corresponding to the st_shndx field of each local symbol.
5733 The global hash table entry for the global symbols can be found
5734 via elf_sym_hashes (input_bfd).
5736 When generating relocatable output, this function must handle
5737 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
5738 going to be the section symbol corresponding to the output
5739 section, which means that the addend must be adjusted
5743 ppc_elf_relocate_section (bfd *output_bfd,
5744 struct bfd_link_info *info,
5746 asection *input_section,
5748 Elf_Internal_Rela *relocs,
5749 Elf_Internal_Sym *local_syms,
5750 asection **local_sections)
5752 Elf_Internal_Shdr *symtab_hdr;
5753 struct elf_link_hash_entry **sym_hashes;
5754 struct ppc_elf_link_hash_table *htab;
5755 Elf_Internal_Rela *rel;
5756 Elf_Internal_Rela *relend;
5757 Elf_Internal_Rela outrel;
5759 asection *got2, *sreloc = NULL;
5760 bfd_vma *local_got_offsets;
5761 bfd_boolean ret = TRUE;
5762 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
5765 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
5766 "%ld relocations%s",
5767 input_bfd, input_section,
5768 (long) input_section->reloc_count,
5769 (info->relocatable) ? " (relocatable)" : "");
5772 got2 = bfd_get_section_by_name (input_bfd, ".got2");
5774 /* Initialize howto table if not already done. */
5775 if (!ppc_elf_howto_table[R_PPC_ADDR32])
5776 ppc_elf_howto_init ();
5778 htab = ppc_elf_hash_table (info);
5779 local_got_offsets = elf_local_got_offsets (input_bfd);
5780 symtab_hdr = &elf_symtab_hdr (input_bfd);
5781 sym_hashes = elf_sym_hashes (input_bfd);
5783 relend = relocs + input_section->reloc_count;
5784 for (; rel < relend; rel++)
5786 enum elf_ppc_reloc_type r_type;
5788 bfd_reloc_status_type r;
5789 Elf_Internal_Sym *sym;
5791 struct elf_link_hash_entry *h;
5792 const char *sym_name;
5793 reloc_howto_type *howto;
5794 unsigned long r_symndx;
5796 bfd_vma branch_bit, insn, from;
5797 bfd_boolean unresolved_reloc;
5799 unsigned int tls_type, tls_mask, tls_gd;
5801 r_type = ELF32_R_TYPE (rel->r_info);
5805 unresolved_reloc = FALSE;
5807 r_symndx = ELF32_R_SYM (rel->r_info);
5809 if (r_symndx < symtab_hdr->sh_info)
5811 sym = local_syms + r_symndx;
5812 sec = local_sections[r_symndx];
5813 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
5815 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
5819 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
5820 r_symndx, symtab_hdr, sym_hashes,
5822 unresolved_reloc, warned);
5824 sym_name = h->root.root.string;
5827 if (sec != NULL && elf_discarded_section (sec))
5829 /* For relocs against symbols from removed linkonce sections,
5830 or sections discarded by a linker script, we just want the
5831 section contents zeroed. Avoid any special processing. */
5833 if (r_type < R_PPC_max)
5834 howto = ppc_elf_howto_table[r_type];
5835 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
5841 if (info->relocatable)
5844 && r_type == R_PPC_PLTREL24
5845 && rel->r_addend >= 32768)
5847 /* R_PPC_PLTREL24 is rather special. If non-zero, the
5848 addend specifies the GOT pointer offset within .got2. */
5849 rel->r_addend += got2->output_offset;
5854 /* TLS optimizations. Replace instruction sequences and relocs
5855 based on information we collected in tls_optimize. We edit
5856 RELOCS so that --emit-relocs will output something sensible
5857 for the final instruction stream. */
5860 if (IS_PPC_TLS_RELOC (r_type))
5863 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
5864 else if (local_got_offsets != NULL)
5867 lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info);
5868 tls_mask = lgot_masks[r_symndx];
5872 /* Ensure reloc mapping code below stays sane. */
5873 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
5874 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
5875 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
5876 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
5877 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
5878 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
5879 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
5880 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
5887 case R_PPC_GOT_TPREL16:
5888 case R_PPC_GOT_TPREL16_LO:
5890 && (tls_mask & TLS_TPREL) == 0)
5893 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
5895 insn |= 0x3c020000; /* addis 0,2,0 */
5896 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
5897 r_type = R_PPC_TPREL16_HA;
5898 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5904 && (tls_mask & TLS_TPREL) == 0)
5907 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
5908 if ((insn & ((31 << 26) | (31 << 11)))
5909 == ((31 << 26) | (2 << 11)))
5910 rtra = insn & ((1 << 26) - (1 << 16));
5911 else if ((insn & ((31 << 26) | (31 << 16)))
5912 == ((31 << 26) | (2 << 16)))
5913 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
5916 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
5919 else if ((insn & (31 << 1)) == 23 << 1
5920 && ((insn & (31 << 6)) < 14 << 6
5921 || ((insn & (31 << 6)) >= 16 << 6
5922 && (insn & (31 << 6)) < 24 << 6)))
5923 /* load and store indexed -> dform. */
5924 insn = (32 | ((insn >> 6) & 31)) << 26;
5925 else if ((insn & (31 << 1)) == 21 << 1
5926 && (insn & (0x1a << 6)) == 0)
5927 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
5928 insn = (((58 | ((insn >> 6) & 4)) << 26)
5929 | ((insn >> 6) & 1));
5930 else if ((insn & (31 << 1)) == 21 << 1
5931 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
5933 insn = (58 << 26) | 2;
5937 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5938 r_type = R_PPC_TPREL16_LO;
5939 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5941 /* Was PPC_TLS which sits on insn boundary, now
5942 PPC_TPREL16_LO which is at low-order half-word. */
5943 rel->r_offset += d_offset;
5947 case R_PPC_GOT_TLSGD16_HI:
5948 case R_PPC_GOT_TLSGD16_HA:
5949 tls_gd = TLS_TPRELGD;
5950 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
5954 case R_PPC_GOT_TLSLD16_HI:
5955 case R_PPC_GOT_TLSLD16_HA:
5956 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
5959 if ((tls_mask & tls_gd) != 0)
5960 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
5961 + R_PPC_GOT_TPREL16);
5964 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
5965 rel->r_offset -= d_offset;
5966 r_type = R_PPC_NONE;
5968 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5972 case R_PPC_GOT_TLSGD16:
5973 case R_PPC_GOT_TLSGD16_LO:
5974 tls_gd = TLS_TPRELGD;
5975 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
5979 case R_PPC_GOT_TLSLD16:
5980 case R_PPC_GOT_TLSLD16_LO:
5981 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
5983 bfd_vma insn1, insn2;
5987 offset = rel[1].r_offset;
5988 insn1 = bfd_get_32 (output_bfd,
5989 contents + rel->r_offset - d_offset);
5990 if ((tls_mask & tls_gd) != 0)
5993 insn1 &= (1 << 26) - 1;
5994 insn1 |= 32 << 26; /* lwz */
5995 insn2 = 0x7c631214; /* add 3,3,2 */
5997 = ELF32_R_INFO (ELF32_R_SYM (rel[1].r_info), R_PPC_NONE);
5998 rel[1].r_addend = 0;
5999 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
6000 + R_PPC_GOT_TPREL16);
6001 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6006 insn1 = 0x3c620000; /* addis 3,2,0 */
6007 insn2 = 0x38630000; /* addi 3,3,0 */
6010 /* Was an LD reloc. */
6012 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
6014 r_type = R_PPC_TPREL16_HA;
6015 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6016 rel[1].r_info = ELF32_R_INFO (r_symndx,
6018 rel[1].r_offset += d_offset;
6019 rel[1].r_addend = rel->r_addend;
6021 bfd_put_32 (output_bfd, insn1,
6022 contents + rel->r_offset - d_offset);
6023 bfd_put_32 (output_bfd, insn2, contents + offset);
6026 /* We changed the symbol on an LD reloc. Start over
6027 in order to get h, sym, sec etc. right. */
6035 /* Handle other relocations that tweak non-addend part of insn. */
6042 /* Branch taken prediction relocations. */
6043 case R_PPC_ADDR14_BRTAKEN:
6044 case R_PPC_REL14_BRTAKEN:
6045 branch_bit = BRANCH_PREDICT_BIT;
6048 /* Branch not taken prediction relocations. */
6049 case R_PPC_ADDR14_BRNTAKEN:
6050 case R_PPC_REL14_BRNTAKEN:
6051 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
6052 insn &= ~BRANCH_PREDICT_BIT;
6055 from = (rel->r_offset
6056 + input_section->output_offset
6057 + input_section->output_section->vma);
6059 /* Invert 'y' bit if not the default. */
6060 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
6061 insn ^= BRANCH_PREDICT_BIT;
6063 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
6067 addend = rel->r_addend;
6070 if (r_type < R_PPC_max)
6071 howto = ppc_elf_howto_table[r_type];
6075 (*_bfd_error_handler)
6076 (_("%B: unknown relocation type %d for symbol %s"),
6077 input_bfd, (int) r_type, sym_name);
6079 bfd_set_error (bfd_error_bad_value);
6085 case R_PPC_EMB_MRKREF:
6086 case R_PPC_GNU_VTINHERIT:
6087 case R_PPC_GNU_VTENTRY:
6090 /* GOT16 relocations. Like an ADDR16 using the symbol's
6091 address in the GOT as relocation value instead of the
6092 symbol's value itself. Also, create a GOT entry for the
6093 symbol and put the symbol value there. */
6094 case R_PPC_GOT_TLSGD16:
6095 case R_PPC_GOT_TLSGD16_LO:
6096 case R_PPC_GOT_TLSGD16_HI:
6097 case R_PPC_GOT_TLSGD16_HA:
6098 tls_type = TLS_TLS | TLS_GD;
6101 case R_PPC_GOT_TLSLD16:
6102 case R_PPC_GOT_TLSLD16_LO:
6103 case R_PPC_GOT_TLSLD16_HI:
6104 case R_PPC_GOT_TLSLD16_HA:
6105 tls_type = TLS_TLS | TLS_LD;
6108 case R_PPC_GOT_TPREL16:
6109 case R_PPC_GOT_TPREL16_LO:
6110 case R_PPC_GOT_TPREL16_HI:
6111 case R_PPC_GOT_TPREL16_HA:
6112 tls_type = TLS_TLS | TLS_TPREL;
6115 case R_PPC_GOT_DTPREL16:
6116 case R_PPC_GOT_DTPREL16_LO:
6117 case R_PPC_GOT_DTPREL16_HI:
6118 case R_PPC_GOT_DTPREL16_HA:
6119 tls_type = TLS_TLS | TLS_DTPREL;
6123 case R_PPC_GOT16_LO:
6124 case R_PPC_GOT16_HI:
6125 case R_PPC_GOT16_HA:
6128 /* Relocation is to the entry for this symbol in the global
6134 if (htab->got == NULL)
6138 if (tls_type == (TLS_TLS | TLS_LD)
6140 || !h->def_dynamic))
6141 offp = &htab->tlsld_got.offset;
6145 dyn = htab->elf.dynamic_sections_created;
6146 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
6148 && SYMBOL_REFERENCES_LOCAL (info, h)))
6149 /* This is actually a static link, or it is a
6150 -Bsymbolic link and the symbol is defined
6151 locally, or the symbol was forced to be local
6152 because of a version file. */
6157 unresolved_reloc = FALSE;
6159 offp = &h->got.offset;
6163 if (local_got_offsets == NULL)
6165 offp = &local_got_offsets[r_symndx];
6168 /* The offset must always be a multiple of 4. We use the
6169 least significant bit to record whether we have already
6170 processed this entry. */
6176 unsigned int tls_m = (tls_mask
6177 & (TLS_LD | TLS_GD | TLS_DTPREL
6178 | TLS_TPREL | TLS_TPRELGD));
6180 if (offp == &htab->tlsld_got.offset)
6186 /* We might have multiple got entries for this sym.
6187 Initialize them all. */
6192 if ((tls_m & TLS_LD) != 0)
6194 tls_ty = TLS_TLS | TLS_LD;
6197 else if ((tls_m & TLS_GD) != 0)
6199 tls_ty = TLS_TLS | TLS_GD;
6202 else if ((tls_m & TLS_DTPREL) != 0)
6204 tls_ty = TLS_TLS | TLS_DTPREL;
6205 tls_m &= ~TLS_DTPREL;
6207 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
6209 tls_ty = TLS_TLS | TLS_TPREL;
6213 /* Generate relocs for the dynamic linker. */
6214 if ((info->shared || indx != 0)
6216 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6217 || h->root.type != bfd_link_hash_undefweak))
6219 outrel.r_offset = (htab->got->output_section->vma
6220 + htab->got->output_offset
6222 outrel.r_addend = 0;
6223 if (tls_ty & (TLS_LD | TLS_GD))
6225 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
6226 if (tls_ty == (TLS_TLS | TLS_GD))
6228 loc = htab->relgot->contents;
6229 loc += (htab->relgot->reloc_count++
6230 * sizeof (Elf32_External_Rela));
6231 bfd_elf32_swap_reloca_out (output_bfd,
6233 outrel.r_offset += 4;
6235 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
6238 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
6239 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
6240 else if (tls_ty == (TLS_TLS | TLS_TPREL))
6241 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
6243 outrel.r_info = ELF32_R_INFO (indx, R_PPC_RELATIVE);
6245 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
6248 outrel.r_addend += relocation;
6249 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
6250 outrel.r_addend -= htab->elf.tls_sec->vma;
6252 loc = htab->relgot->contents;
6253 loc += (htab->relgot->reloc_count++
6254 * sizeof (Elf32_External_Rela));
6255 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
6258 /* Init the .got section contents if we're not
6259 emitting a reloc. */
6262 bfd_vma value = relocation;
6264 if (tls_ty == (TLS_TLS | TLS_LD))
6266 else if (tls_ty != 0)
6268 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
6269 if (tls_ty == (TLS_TLS | TLS_TPREL))
6270 value += DTP_OFFSET - TP_OFFSET;
6272 if (tls_ty == (TLS_TLS | TLS_GD))
6274 bfd_put_32 (output_bfd, value,
6275 htab->got->contents + off + 4);
6279 bfd_put_32 (output_bfd, value,
6280 htab->got->contents + off);
6284 if (tls_ty & (TLS_LD | TLS_GD))
6293 if (off >= (bfd_vma) -2)
6296 if ((tls_type & TLS_TLS) != 0)
6298 if (tls_type != (TLS_TLS | TLS_LD))
6300 if ((tls_mask & TLS_LD) != 0
6302 || !h->def_dynamic))
6304 if (tls_type != (TLS_TLS | TLS_GD))
6306 if ((tls_mask & TLS_GD) != 0)
6308 if (tls_type != (TLS_TLS | TLS_DTPREL))
6310 if ((tls_mask & TLS_DTPREL) != 0)
6317 relocation = htab->got->output_offset + off;
6318 relocation -= htab->elf.hgot->root.u.def.value;
6320 /* Addends on got relocations don't make much sense.
6321 x+off@got is actually x@got+off, and since the got is
6322 generated by a hash table traversal, the value in the
6323 got at entry m+n bears little relation to the entry m. */
6325 (*_bfd_error_handler)
6326 (_("%B(%A+0x%lx): non-zero addend on %s reloc against `%s'"),
6329 (long) rel->r_offset,
6335 /* Relocations that need no special processing. */
6336 case R_PPC_LOCAL24PC:
6337 /* It makes no sense to point a local relocation
6338 at a symbol not in this object. */
6339 if (unresolved_reloc)
6341 if (! (*info->callbacks->undefined_symbol) (info,
6342 h->root.root.string,
6352 case R_PPC_DTPREL16:
6353 case R_PPC_DTPREL16_LO:
6354 case R_PPC_DTPREL16_HI:
6355 case R_PPC_DTPREL16_HA:
6356 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
6359 /* Relocations that may need to be propagated if this is a shared
6362 case R_PPC_TPREL16_LO:
6363 case R_PPC_TPREL16_HI:
6364 case R_PPC_TPREL16_HA:
6365 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
6366 /* The TPREL16 relocs shouldn't really be used in shared
6367 libs as they will result in DT_TEXTREL being set, but
6368 support them anyway. */
6372 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
6375 case R_PPC_DTPREL32:
6376 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
6379 case R_PPC_DTPMOD32:
6385 case R_PPC_REL16_LO:
6386 case R_PPC_REL16_HI:
6387 case R_PPC_REL16_HA:
6393 case R_PPC_REL14_BRTAKEN:
6394 case R_PPC_REL14_BRNTAKEN:
6395 /* If these relocations are not to a named symbol, they can be
6396 handled right here, no need to bother the dynamic linker. */
6397 if (SYMBOL_REFERENCES_LOCAL (info, h)
6398 || h == htab->elf.hgot)
6402 /* Relocations that always need to be propagated if this is a shared
6407 case R_PPC_ADDR16_LO:
6408 case R_PPC_ADDR16_HI:
6409 case R_PPC_ADDR16_HA:
6411 case R_PPC_ADDR14_BRTAKEN:
6412 case R_PPC_ADDR14_BRNTAKEN:
6416 if ((input_section->flags & SEC_ALLOC) == 0)
6422 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6423 || h->root.type != bfd_link_hash_undefweak)
6424 && (MUST_BE_DYN_RELOC (r_type)
6425 || !SYMBOL_CALLS_LOCAL (info, h)))
6426 || (ELIMINATE_COPY_RELOCS
6432 && !h->def_regular))
6437 fprintf (stderr, "ppc_elf_relocate_section needs to "
6438 "create relocation for %s\n",
6439 (h && h->root.root.string
6440 ? h->root.root.string : "<unknown>"));
6443 /* When generating a shared object, these relocations
6444 are copied into the output file to be resolved at run
6450 name = (bfd_elf_string_from_elf_section
6452 elf_elfheader (input_bfd)->e_shstrndx,
6453 elf_section_data (input_section)->rel_hdr.sh_name));
6457 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
6458 && strcmp (bfd_get_section_name (input_bfd,
6462 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
6463 BFD_ASSERT (sreloc != NULL);
6469 _bfd_elf_section_offset (output_bfd, info, input_section,
6471 if (outrel.r_offset == (bfd_vma) -1
6472 || outrel.r_offset == (bfd_vma) -2)
6473 skip = (int) outrel.r_offset;
6474 outrel.r_offset += (input_section->output_section->vma
6475 + input_section->output_offset);
6478 memset (&outrel, 0, sizeof outrel);
6479 else if (!SYMBOL_REFERENCES_LOCAL (info, h))
6481 unresolved_reloc = FALSE;
6482 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
6483 outrel.r_addend = rel->r_addend;
6487 outrel.r_addend = relocation + rel->r_addend;
6489 if (r_type == R_PPC_ADDR32)
6490 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
6495 if (bfd_is_abs_section (sec))
6497 else if (sec == NULL || sec->owner == NULL)
6499 bfd_set_error (bfd_error_bad_value);
6506 /* We are turning this relocation into one
6507 against a section symbol. It would be
6508 proper to subtract the symbol's value,
6509 osec->vma, from the emitted reloc addend,
6510 but ld.so expects buggy relocs. */
6511 osec = sec->output_section;
6512 indx = elf_section_data (osec)->dynindx;
6515 osec = htab->elf.text_index_section;
6516 indx = elf_section_data (osec)->dynindx;
6518 BFD_ASSERT (indx != 0);
6521 printf ("indx=%ld section=%s flags=%08x name=%s\n",
6522 indx, osec->name, osec->flags,
6523 h->root.root.string);
6527 outrel.r_info = ELF32_R_INFO (indx, r_type);
6531 loc = sreloc->contents;
6532 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
6533 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
6538 /* This reloc will be computed at runtime. We clear the memory
6539 so that it contains predictable value. */
6541 && ((input_section->flags & SEC_ALLOC) != 0
6542 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
6544 relocation = howto->pc_relative ? outrel.r_offset : 0;
6551 case R_PPC_RELAX32PC_PLT:
6552 case R_PPC_RELAX32_PLT:
6554 struct plt_entry *ent = find_plt_ent (h, got2, addend);
6556 if (htab->plt_type == PLT_NEW)
6557 relocation = (htab->glink->output_section->vma
6558 + htab->glink->output_offset
6559 + ent->glink_offset);
6561 relocation = (htab->plt->output_section->vma
6562 + htab->plt->output_offset
6566 if (r_type == R_PPC_RELAX32_PLT)
6570 case R_PPC_RELAX32PC:
6571 relocation -= (input_section->output_section->vma
6572 + input_section->output_offset
6573 + rel->r_offset - 4);
6582 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
6583 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
6585 /* We're clearing the bits for R_PPC_ADDR16_HA
6586 and R_PPC_ADDR16_LO here. */
6590 /* t0 is HA, t1 is LO */
6591 relocation += addend;
6592 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
6593 t1 |= relocation & 0xffff;
6595 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
6596 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
6600 /* Indirect .sdata relocation. */
6601 case R_PPC_EMB_SDAI16:
6602 BFD_ASSERT (htab->sdata[0].section != NULL);
6604 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
6605 h, relocation, rel);
6608 /* Indirect .sdata2 relocation. */
6609 case R_PPC_EMB_SDA2I16:
6610 BFD_ASSERT (htab->sdata[1].section != NULL);
6612 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
6613 h, relocation, rel);
6616 /* Handle the TOC16 reloc. We want to use the offset within the .got
6617 section, not the actual VMA. This is appropriate when generating
6618 an embedded ELF object, for which the .got section acts like the
6619 AIX .toc section. */
6620 case R_PPC_TOC16: /* phony GOT16 relocations */
6621 BFD_ASSERT (sec != NULL);
6622 BFD_ASSERT (bfd_is_und_section (sec)
6623 || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
6624 || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
6626 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
6629 case R_PPC_PLTREL24:
6630 /* Relocation is to the entry for this symbol in the
6631 procedure linkage table. */
6633 struct plt_entry *ent = find_plt_ent (h, got2, addend);
6637 || htab->plt == NULL)
6639 /* We didn't make a PLT entry for this symbol. This
6640 happens when statically linking PIC code, or when
6641 using -Bsymbolic. */
6645 unresolved_reloc = FALSE;
6646 if (htab->plt_type == PLT_NEW)
6647 relocation = (htab->glink->output_section->vma
6648 + htab->glink->output_offset
6649 + ent->glink_offset);
6651 relocation = (htab->plt->output_section->vma
6652 + htab->plt->output_offset
6657 /* Relocate against _SDA_BASE_. */
6658 case R_PPC_SDAREL16:
6661 struct elf_link_hash_entry *sh;
6663 BFD_ASSERT (sec != NULL);
6664 name = bfd_get_section_name (abfd, sec->output_section);
6665 if (! ((CONST_STRNEQ (name, ".sdata")
6666 && (name[6] == 0 || name[6] == '.'))
6667 || (CONST_STRNEQ (name, ".sbss")
6668 && (name[5] == 0 || name[5] == '.'))))
6670 (*_bfd_error_handler)
6671 (_("%B: the target (%s) of a %s relocation is "
6672 "in the wrong output section (%s)"),
6678 sh = htab->sdata[0].sym;
6679 addend -= (sh->root.u.def.value
6680 + sh->root.u.def.section->output_offset
6681 + sh->root.u.def.section->output_section->vma);
6685 /* Relocate against _SDA2_BASE_. */
6686 case R_PPC_EMB_SDA2REL:
6689 struct elf_link_hash_entry *sh;
6691 BFD_ASSERT (sec != NULL);
6692 name = bfd_get_section_name (abfd, sec->output_section);
6693 if (! (CONST_STRNEQ (name, ".sdata2")
6694 || CONST_STRNEQ (name, ".sbss2")))
6696 (*_bfd_error_handler)
6697 (_("%B: the target (%s) of a %s relocation is "
6698 "in the wrong output section (%s)"),
6704 bfd_set_error (bfd_error_bad_value);
6708 sh = htab->sdata[1].sym;
6709 addend -= (sh->root.u.def.value
6710 + sh->root.u.def.section->output_offset
6711 + sh->root.u.def.section->output_section->vma);
6715 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
6716 case R_PPC_EMB_SDA21:
6717 case R_PPC_EMB_RELSDA:
6721 struct elf_link_hash_entry *sh;
6723 BFD_ASSERT (sec != NULL);
6724 name = bfd_get_section_name (abfd, sec->output_section);
6725 if (((CONST_STRNEQ (name, ".sdata")
6726 && (name[6] == 0 || name[6] == '.'))
6727 || (CONST_STRNEQ (name, ".sbss")
6728 && (name[5] == 0 || name[5] == '.'))))
6731 sh = htab->sdata[0].sym;
6732 addend -= (sh->root.u.def.value
6733 + sh->root.u.def.section->output_offset
6734 + sh->root.u.def.section->output_section->vma);
6737 else if (CONST_STRNEQ (name, ".sdata2")
6738 || CONST_STRNEQ (name, ".sbss2"))
6741 sh = htab->sdata[1].sym;
6742 addend -= (sh->root.u.def.value
6743 + sh->root.u.def.section->output_offset
6744 + sh->root.u.def.section->output_section->vma);
6747 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
6748 || strcmp (name, ".PPC.EMB.sbss0") == 0)
6755 (*_bfd_error_handler)
6756 (_("%B: the target (%s) of a %s relocation is "
6757 "in the wrong output section (%s)"),
6763 bfd_set_error (bfd_error_bad_value);
6768 if (r_type == R_PPC_EMB_SDA21)
6769 { /* fill in register field */
6770 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
6771 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
6772 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
6777 /* Relocate against the beginning of the section. */
6779 case R_PPC_SECTOFF_LO:
6780 case R_PPC_SECTOFF_HI:
6781 case R_PPC_SECTOFF_HA:
6782 BFD_ASSERT (sec != NULL);
6783 addend -= sec->output_section->vma;
6786 /* Negative relocations. */
6787 case R_PPC_EMB_NADDR32:
6788 case R_PPC_EMB_NADDR16:
6789 case R_PPC_EMB_NADDR16_LO:
6790 case R_PPC_EMB_NADDR16_HI:
6791 case R_PPC_EMB_NADDR16_HA:
6792 addend -= 2 * relocation;
6796 case R_PPC_GLOB_DAT:
6797 case R_PPC_JMP_SLOT:
6798 case R_PPC_RELATIVE:
6800 case R_PPC_PLTREL32:
6801 case R_PPC_PLT16_LO:
6802 case R_PPC_PLT16_HI:
6803 case R_PPC_PLT16_HA:
6805 case R_PPC_EMB_RELSEC16:
6806 case R_PPC_EMB_RELST_LO:
6807 case R_PPC_EMB_RELST_HI:
6808 case R_PPC_EMB_RELST_HA:
6809 case R_PPC_EMB_BIT_FLD:
6810 (*_bfd_error_handler)
6811 (_("%B: relocation %s is not yet supported for symbol %s."),
6816 bfd_set_error (bfd_error_invalid_operation);
6821 /* Do any further special processing. */
6827 case R_PPC_ADDR16_HA:
6828 case R_PPC_REL16_HA:
6829 case R_PPC_SECTOFF_HA:
6830 case R_PPC_TPREL16_HA:
6831 case R_PPC_DTPREL16_HA:
6832 case R_PPC_EMB_NADDR16_HA:
6833 case R_PPC_EMB_RELST_HA:
6834 /* It's just possible that this symbol is a weak symbol
6835 that's not actually defined anywhere. In that case,
6836 'sec' would be NULL, and we should leave the symbol
6837 alone (it will be set to zero elsewhere in the link). */
6842 case R_PPC_PLT16_HA:
6843 case R_PPC_GOT16_HA:
6844 case R_PPC_GOT_TLSGD16_HA:
6845 case R_PPC_GOT_TLSLD16_HA:
6846 case R_PPC_GOT_TPREL16_HA:
6847 case R_PPC_GOT_DTPREL16_HA:
6848 /* Add 0x10000 if sign bit in 0:15 is set.
6849 Bits 0:15 are not used. */
6855 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
6856 "offset = %ld, addend = %ld\n",
6861 (long) rel->r_offset,
6865 if (unresolved_reloc
6866 && !((input_section->flags & SEC_DEBUGGING) != 0
6869 (*_bfd_error_handler)
6870 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
6873 (long) rel->r_offset,
6879 r = _bfd_final_link_relocate (howto,
6887 if (r != bfd_reloc_ok)
6889 if (r == bfd_reloc_overflow)
6894 && h->root.type == bfd_link_hash_undefweak
6895 && howto->pc_relative)
6897 /* Assume this is a call protected by other code that
6898 detect the symbol is undefined. If this is the case,
6899 we can safely ignore the overflow. If not, the
6900 program is hosed anyway, and a little warning isn't
6906 if (! (*info->callbacks->reloc_overflow) (info,
6907 (h ? &h->root : NULL),
6918 (*_bfd_error_handler)
6919 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
6920 input_bfd, input_section,
6921 (long) rel->r_offset, howto->name, sym_name, (int) r);
6928 fprintf (stderr, "\n");
6934 #define PPC_LO(v) ((v) & 0xffff)
6935 #define PPC_HI(v) (((v) >> 16) & 0xffff)
6936 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
6938 /* Finish up dynamic symbol handling. We set the contents of various
6939 dynamic sections here. */
6942 ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
6943 struct bfd_link_info *info,
6944 struct elf_link_hash_entry *h,
6945 Elf_Internal_Sym *sym)
6947 struct ppc_elf_link_hash_table *htab;
6948 struct plt_entry *ent;
6949 bfd_boolean doneone;
6952 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
6953 h->root.root.string);
6956 htab = ppc_elf_hash_table (info);
6957 BFD_ASSERT (htab->elf.dynobj != NULL);
6960 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6961 if (ent->plt.offset != (bfd_vma) -1)
6965 Elf_Internal_Rela rela;
6967 bfd_vma reloc_index;
6969 if (htab->plt_type == PLT_NEW)
6970 reloc_index = ent->plt.offset / 4;
6973 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
6974 / htab->plt_slot_size);
6975 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
6976 && htab->plt_type == PLT_OLD)
6977 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
6980 /* This symbol has an entry in the procedure linkage table.
6982 if (htab->plt_type == PLT_VXWORKS)
6985 const bfd_vma *plt_entry;
6987 /* The first three entries in .got.plt are reserved. */
6988 got_offset = (reloc_index + 3) * 4;
6990 /* Use the right PLT. */
6991 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
6992 : ppc_elf_vxworks_plt_entry;
6994 /* Fill in the .plt on VxWorks. */
6997 bfd_vma got_offset_hi = (got_offset >> 16)
6998 + ((got_offset & 0x8000) >> 15);
7000 bfd_put_32 (output_bfd,
7001 plt_entry[0] | (got_offset_hi & 0xffff),
7002 htab->plt->contents + ent->plt.offset + 0);
7003 bfd_put_32 (output_bfd,
7004 plt_entry[1] | (got_offset & 0xffff),
7005 htab->plt->contents + ent->plt.offset + 4);
7011 + htab->elf.hgot->root.u.def.value
7012 + htab->elf.hgot->root.u.def.section->output_offset
7013 + htab->elf.hgot->root.u.def.section->output_section->vma);
7014 bfd_vma got_loc_hi = (got_loc >> 16)
7015 + ((got_loc & 0x8000) >> 15);
7017 bfd_put_32 (output_bfd,
7018 plt_entry[0] | (got_loc_hi & 0xffff),
7019 htab->plt->contents + ent->plt.offset + 0);
7020 bfd_put_32 (output_bfd,
7021 plt_entry[1] | (got_loc & 0xffff),
7022 htab->plt->contents + ent->plt.offset + 4);
7025 bfd_put_32 (output_bfd, plt_entry[2],
7026 htab->plt->contents + ent->plt.offset + 8);
7027 bfd_put_32 (output_bfd, plt_entry[3],
7028 htab->plt->contents + ent->plt.offset + 12);
7030 /* This instruction is an immediate load. The value loaded is
7031 the byte offset of the R_PPC_JMP_SLOT relocation from the
7032 start of the .rela.plt section. The value is stored in the
7033 low-order 16 bits of the load instruction. */
7034 /* NOTE: It appears that this is now an index rather than a
7035 prescaled offset. */
7036 bfd_put_32 (output_bfd,
7037 plt_entry[4] | reloc_index,
7038 htab->plt->contents + ent->plt.offset + 16);
7039 /* This instruction is a PC-relative branch whose target is
7040 the start of the PLT section. The address of this branch
7041 instruction is 20 bytes beyond the start of this PLT entry.
7042 The address is encoded in bits 6-29, inclusive. The value
7043 stored is right-shifted by two bits, permitting a 26-bit
7045 bfd_put_32 (output_bfd,
7047 | (-(ent->plt.offset + 20) & 0x03fffffc)),
7048 htab->plt->contents + ent->plt.offset + 20);
7049 bfd_put_32 (output_bfd, plt_entry[6],
7050 htab->plt->contents + ent->plt.offset + 24);
7051 bfd_put_32 (output_bfd, plt_entry[7],
7052 htab->plt->contents + ent->plt.offset + 28);
7054 /* Fill in the GOT entry corresponding to this PLT slot with
7055 the address immediately after the the "bctr" instruction
7056 in this PLT entry. */
7057 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
7058 + htab->plt->output_offset
7059 + ent->plt.offset + 16),
7060 htab->sgotplt->contents + got_offset);
7064 /* Fill in a couple of entries in .rela.plt.unloaded. */
7065 loc = htab->srelplt2->contents
7066 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
7067 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
7068 * sizeof (Elf32_External_Rela));
7070 /* Provide the @ha relocation for the first instruction. */
7071 rela.r_offset = (htab->plt->output_section->vma
7072 + htab->plt->output_offset
7073 + ent->plt.offset + 2);
7074 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
7076 rela.r_addend = got_offset;
7077 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7078 loc += sizeof (Elf32_External_Rela);
7080 /* Provide the @l relocation for the second instruction. */
7081 rela.r_offset = (htab->plt->output_section->vma
7082 + htab->plt->output_offset
7083 + ent->plt.offset + 6);
7084 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
7086 rela.r_addend = got_offset;
7087 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7088 loc += sizeof (Elf32_External_Rela);
7090 /* Provide a relocation for the GOT entry corresponding to this
7091 PLT slot. Point it at the middle of the .plt entry. */
7092 rela.r_offset = (htab->sgotplt->output_section->vma
7093 + htab->sgotplt->output_offset
7095 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
7097 rela.r_addend = ent->plt.offset + 16;
7098 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7101 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
7102 In particular, the offset for the relocation is not the
7103 address of the PLT entry for this function, as specified
7104 by the ABI. Instead, the offset is set to the address of
7105 the GOT slot for this function. See EABI 4.4.4.1. */
7106 rela.r_offset = (htab->sgotplt->output_section->vma
7107 + htab->sgotplt->output_offset
7113 rela.r_offset = (htab->plt->output_section->vma
7114 + htab->plt->output_offset
7116 if (htab->plt_type == PLT_OLD)
7118 /* We don't need to fill in the .plt. The ppc dynamic
7119 linker will fill it in. */
7123 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
7124 + htab->glink->output_section->vma
7125 + htab->glink->output_offset);
7126 bfd_put_32 (output_bfd, val,
7127 htab->plt->contents + ent->plt.offset);
7131 /* Fill in the entry in the .rela.plt section. */
7132 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
7135 loc = (htab->relplt->contents
7136 + reloc_index * sizeof (Elf32_External_Rela));
7137 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7139 if (!h->def_regular)
7141 /* Mark the symbol as undefined, rather than as defined in
7142 the .plt section. Leave the value alone. */
7143 sym->st_shndx = SHN_UNDEF;
7144 /* If the symbol is weak, we do need to clear the value.
7145 Otherwise, the PLT entry would provide a definition for
7146 the symbol even if the symbol wasn't defined anywhere,
7147 and so the symbol would never be NULL. */
7148 if (!h->ref_regular_nonweak)
7154 if (htab->plt_type == PLT_NEW)
7159 plt = (ent->plt.offset
7160 + htab->plt->output_section->vma
7161 + htab->plt->output_offset);
7162 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
7164 if (info->shared || info->pie)
7168 if (ent->addend >= 32768)
7170 + ent->sec->output_section->vma
7171 + ent->sec->output_offset);
7172 else if (htab->elf.hgot != NULL)
7173 got = (htab->elf.hgot->root.u.def.value
7174 + htab->elf.hgot->root.u.def.section->output_section->vma
7175 + htab->elf.hgot->root.u.def.section->output_offset);
7179 if (plt + 0x8000 < 0x10000)
7181 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7183 bfd_put_32 (output_bfd, MTCTR_11, p);
7185 bfd_put_32 (output_bfd, BCTR, p);
7187 bfd_put_32 (output_bfd, NOP, p);
7192 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7194 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7196 bfd_put_32 (output_bfd, MTCTR_11, p);
7198 bfd_put_32 (output_bfd, BCTR, p);
7204 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7206 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7208 bfd_put_32 (output_bfd, MTCTR_11, p);
7210 bfd_put_32 (output_bfd, BCTR, p);
7213 /* We only need one non-PIC glink stub. */
7224 Elf_Internal_Rela rela;
7227 /* This symbols needs a copy reloc. Set it up. */
7230 fprintf (stderr, ", copy");
7233 BFD_ASSERT (h->dynindx != -1);
7235 if (ppc_elf_hash_entry (h)->has_sda_refs)
7239 BFD_ASSERT (s != NULL);
7241 rela.r_offset = (h->root.u.def.value
7242 + h->root.u.def.section->output_section->vma
7243 + h->root.u.def.section->output_offset);
7244 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
7246 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
7247 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7251 fprintf (stderr, "\n");
7254 /* Mark some specially defined symbols as absolute. */
7255 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
7256 || (!htab->is_vxworks
7257 && (h == htab->elf.hgot
7258 || strcmp (h->root.root.string,
7259 "_PROCEDURE_LINKAGE_TABLE_") == 0)))
7260 sym->st_shndx = SHN_ABS;
7265 static enum elf_reloc_type_class
7266 ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
7268 switch (ELF32_R_TYPE (rela->r_info))
7270 case R_PPC_RELATIVE:
7271 return reloc_class_relative;
7274 case R_PPC_JMP_SLOT:
7275 return reloc_class_plt;
7277 return reloc_class_copy;
7279 return reloc_class_normal;
7283 /* Finish up the dynamic sections. */
7286 ppc_elf_finish_dynamic_sections (bfd *output_bfd,
7287 struct bfd_link_info *info)
7291 struct ppc_elf_link_hash_table *htab;
7296 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
7299 htab = ppc_elf_hash_table (info);
7300 dynobj = elf_hash_table (info)->dynobj;
7301 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
7302 if (htab->is_vxworks)
7303 splt = bfd_get_section_by_name (dynobj, ".plt");
7308 if (htab->elf.hgot != NULL)
7309 got = (htab->elf.hgot->root.u.def.value
7310 + htab->elf.hgot->root.u.def.section->output_section->vma
7311 + htab->elf.hgot->root.u.def.section->output_offset);
7313 if (htab->elf.dynamic_sections_created)
7315 Elf32_External_Dyn *dyncon, *dynconend;
7317 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
7319 dyncon = (Elf32_External_Dyn *) sdyn->contents;
7320 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
7321 for (; dyncon < dynconend; dyncon++)
7323 Elf_Internal_Dyn dyn;
7326 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
7331 if (htab->is_vxworks)
7335 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7339 dyn.d_un.d_val = htab->relplt->size;
7344 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7348 dyn.d_un.d_ptr = got;
7352 if (htab->is_vxworks)
7355 dyn.d_un.d_ptr -= htab->relplt->size;
7361 if (htab->is_vxworks
7362 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
7367 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7371 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can
7372 easily find the address of the _GLOBAL_OFFSET_TABLE_. */
7373 if (htab->got != NULL)
7375 unsigned char *p = htab->got->contents;
7378 p += htab->elf.hgot->root.u.def.value;
7379 if (htab->plt_type == PLT_OLD)
7380 bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, p - 4);
7384 val = sdyn->output_section->vma + sdyn->output_offset;
7385 bfd_put_32 (output_bfd, val, p);
7387 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
7390 /* Fill in the first entry in the VxWorks procedure linkage table. */
7391 if (splt && splt->size > 0)
7393 /* Use the right PLT. */
7394 static const bfd_vma *plt_entry = NULL;
7395 plt_entry = info->shared ?
7396 ppc_elf_vxworks_pic_plt0_entry : ppc_elf_vxworks_plt0_entry;
7401 (htab->elf.hgot->root.u.def.section->output_section->vma
7402 + htab->elf.hgot->root.u.def.section->output_offset
7403 + htab->elf.hgot->root.u.def.value);
7404 bfd_vma got_hi = (got_value >> 16) + ((got_value & 0x8000) >> 15);
7406 bfd_put_32 (output_bfd, plt_entry[0] | (got_hi & 0xffff),
7407 splt->contents + 0);
7408 bfd_put_32 (output_bfd, plt_entry[1] | (got_value & 0xffff),
7409 splt->contents + 4);
7413 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
7414 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
7416 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
7417 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
7418 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
7419 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
7420 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
7421 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
7425 Elf_Internal_Rela rela;
7428 loc = htab->srelplt2->contents;
7430 /* Output the @ha relocation for the first instruction. */
7431 rela.r_offset = (htab->plt->output_section->vma
7432 + htab->plt->output_offset
7434 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
7436 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7437 loc += sizeof (Elf32_External_Rela);
7439 /* Output the @l relocation for the second instruction. */
7440 rela.r_offset = (htab->plt->output_section->vma
7441 + htab->plt->output_offset
7443 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
7445 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7446 loc += sizeof (Elf32_External_Rela);
7448 /* Fix up the remaining relocations. They may have the wrong
7449 symbol index for _G_O_T_ or _P_L_T_ depending on the order
7450 in which symbols were output. */
7451 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
7453 Elf_Internal_Rela rel;
7455 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7456 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
7457 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7458 loc += sizeof (Elf32_External_Rela);
7460 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7461 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
7462 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7463 loc += sizeof (Elf32_External_Rela);
7465 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7466 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
7467 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7468 loc += sizeof (Elf32_External_Rela);
7473 if (htab->glink != NULL && htab->glink->contents != NULL)
7476 unsigned char *endp;
7481 * PIC glink code is the following:
7483 * # ith PLT code stub.
7484 * addis 11,30,(plt+(i-1)*4-got)@ha
7485 * lwz 11,(plt+(i-1)*4-got)@l(11)
7489 * # A table of branches, one for each plt entry.
7490 * # The idea is that the plt call stub loads ctr (and r11) with these
7491 * # addresses, so (r11 - res_0) gives the plt index * 4.
7492 * res_0: b PLTresolve
7493 * res_1: b PLTresolve
7495 * # Some number of entries towards the end can be nops
7501 * addis 11,11,(1f-res_0)@ha
7504 * 1: addi 11,11,(1b-res_0)@l
7507 * sub 11,11,12 # r11 = index * 4
7508 * addis 12,12,(got+4-1b)@ha
7509 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
7510 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
7513 * add 11,0,11 # r11 = index * 12 = reloc offset.
7516 static const unsigned int pic_plt_resolve[] =
7536 static const unsigned int plt_resolve[] =
7556 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
7558 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7561 /* Build the branch table, one for each plt entry (less one),
7562 and perhaps some padding. */
7563 p = htab->glink->contents;
7564 p += htab->glink_pltresolve;
7565 endp = htab->glink->contents;
7566 endp += htab->glink->size - GLINK_PLTRESOLVE;
7567 while (p < endp - 8 * 4)
7569 bfd_put_32 (output_bfd, B + endp - p, p);
7574 bfd_put_32 (output_bfd, NOP, p);
7578 res0 = (htab->glink_pltresolve
7579 + htab->glink->output_section->vma
7580 + htab->glink->output_offset);
7582 /* Last comes the PLTresolve stub. */
7583 if (info->shared || info->pie)
7587 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7589 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
7592 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
7594 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
7595 + htab->glink->output_section->vma
7596 + htab->glink->output_offset);
7598 bfd_put_32 (output_bfd,
7599 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
7600 bfd_put_32 (output_bfd,
7601 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
7602 bfd_put_32 (output_bfd,
7603 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
7604 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
7606 bfd_put_32 (output_bfd,
7607 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7608 bfd_put_32 (output_bfd,
7609 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
7613 bfd_put_32 (output_bfd,
7614 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7615 bfd_put_32 (output_bfd,
7616 LWZ_12_12 + 4, p + 9*4);
7621 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7623 bfd_put_32 (output_bfd, plt_resolve[i], p);
7626 p -= 4 * ARRAY_SIZE (plt_resolve);
7628 bfd_put_32 (output_bfd,
7629 LIS_12 + PPC_HA (got + 4), p + 0*4);
7630 bfd_put_32 (output_bfd,
7631 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
7632 bfd_put_32 (output_bfd,
7633 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
7634 if (PPC_HA (got + 4) == PPC_HA (got + 8))
7636 bfd_put_32 (output_bfd,
7637 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
7638 bfd_put_32 (output_bfd,
7639 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
7643 bfd_put_32 (output_bfd,
7644 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
7645 bfd_put_32 (output_bfd,
7646 LWZ_12_12 + 4, p + 6*4);
7654 #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
7655 #define TARGET_LITTLE_NAME "elf32-powerpcle"
7656 #define TARGET_BIG_SYM bfd_elf32_powerpc_vec
7657 #define TARGET_BIG_NAME "elf32-powerpc"
7658 #define ELF_ARCH bfd_arch_powerpc
7659 #define ELF_MACHINE_CODE EM_PPC
7660 #ifdef __QNXTARGET__
7661 #define ELF_MAXPAGESIZE 0x1000
7663 #define ELF_MAXPAGESIZE 0x10000
7665 #define ELF_MINPAGESIZE 0x1000
7666 #define ELF_COMMONPAGESIZE 0x1000
7667 #define elf_info_to_howto ppc_elf_info_to_howto
7669 #ifdef EM_CYGNUS_POWERPC
7670 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
7674 #define ELF_MACHINE_ALT2 EM_PPC_OLD
7677 #define elf_backend_plt_not_loaded 1
7678 #define elf_backend_can_gc_sections 1
7679 #define elf_backend_can_refcount 1
7680 #define elf_backend_rela_normal 1
7682 #define bfd_elf32_mkobject ppc_elf_mkobject
7683 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
7684 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
7685 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
7686 #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
7687 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
7688 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
7690 #define elf_backend_object_p ppc_elf_object_p
7691 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
7692 #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
7693 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
7694 #define elf_backend_relocate_section ppc_elf_relocate_section
7695 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
7696 #define elf_backend_check_relocs ppc_elf_check_relocs
7697 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
7698 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
7699 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
7700 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
7701 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
7702 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
7703 #define elf_backend_fake_sections ppc_elf_fake_sections
7704 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
7705 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
7706 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
7707 #define elf_backend_write_core_note ppc_elf_write_core_note
7708 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
7709 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
7710 #define elf_backend_final_write_processing ppc_elf_final_write_processing
7711 #define elf_backend_write_section ppc_elf_write_section
7712 #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
7713 #define elf_backend_plt_sym_val ppc_elf_plt_sym_val
7714 #define elf_backend_action_discarded ppc_elf_action_discarded
7715 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
7717 #include "elf32-target.h"
7719 /* VxWorks Target */
7721 #undef TARGET_LITTLE_SYM
7722 #undef TARGET_LITTLE_NAME
7724 #undef TARGET_BIG_SYM
7725 #define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
7726 #undef TARGET_BIG_NAME
7727 #define TARGET_BIG_NAME "elf32-powerpc-vxworks"
7729 /* VxWorks uses the elf default section flags for .plt. */
7730 static const struct bfd_elf_special_section *
7731 ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
7733 if (sec->name == NULL)
7736 if (strcmp (sec->name, ".plt") == 0)
7737 return _bfd_elf_get_sec_type_attr (abfd, sec);
7739 return ppc_elf_get_sec_type_attr (abfd, sec);
7742 /* Like ppc_elf_link_hash_table_create, but overrides
7743 appropriately for VxWorks. */
7744 static struct bfd_link_hash_table *
7745 ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
7747 struct bfd_link_hash_table *ret;
7749 ret = ppc_elf_link_hash_table_create (abfd);
7752 struct ppc_elf_link_hash_table *htab
7753 = (struct ppc_elf_link_hash_table *)ret;
7754 htab->is_vxworks = 1;
7755 htab->plt_type = PLT_VXWORKS;
7756 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
7757 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
7758 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
7763 /* Tweak magic VxWorks symbols as they are loaded. */
7765 ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
7766 struct bfd_link_info *info,
7767 Elf_Internal_Sym *sym,
7768 const char **namep ATTRIBUTE_UNUSED,
7769 flagword *flagsp ATTRIBUTE_UNUSED,
7773 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
7777 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
7781 ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
7783 ppc_elf_final_write_processing(abfd, linker);
7784 elf_vxworks_final_write_processing(abfd, linker);
7787 /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
7789 #undef elf_backend_want_plt_sym
7790 #define elf_backend_want_plt_sym 1
7791 #undef elf_backend_want_got_plt
7792 #define elf_backend_want_got_plt 1
7793 #undef elf_backend_got_symbol_offset
7794 #define elf_backend_got_symbol_offset 0
7795 #undef elf_backend_plt_not_loaded
7796 #define elf_backend_plt_not_loaded 0
7797 #undef elf_backend_plt_readonly
7798 #define elf_backend_plt_readonly 1
7799 #undef elf_backend_got_header_size
7800 #define elf_backend_got_header_size 12
7802 #undef bfd_elf32_bfd_link_hash_table_create
7803 #define bfd_elf32_bfd_link_hash_table_create \
7804 ppc_elf_vxworks_link_hash_table_create
7805 #undef elf_backend_add_symbol_hook
7806 #define elf_backend_add_symbol_hook \
7807 ppc_elf_vxworks_add_symbol_hook
7808 #undef elf_backend_link_output_symbol_hook
7809 #define elf_backend_link_output_symbol_hook \
7810 elf_vxworks_link_output_symbol_hook
7811 #undef elf_backend_final_write_processing
7812 #define elf_backend_final_write_processing \
7813 ppc_elf_vxworks_final_write_processing
7814 #undef elf_backend_get_sec_type_attr
7815 #define elf_backend_get_sec_type_attr \
7816 ppc_elf_vxworks_get_sec_type_attr
7817 #undef elf_backend_emit_relocs
7818 #define elf_backend_emit_relocs \
7819 elf_vxworks_emit_relocs
7822 #define elf32_bed ppc_elf_vxworks_bed
7824 #include "elf32-target.h"
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