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, 2009, 2010, 2011, 2012
4 Free Software Foundation, Inc.
5 Written by Ian Lance Taylor, Cygnus Support.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the
21 Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
22 Boston, MA 02110-1301, USA. */
25 /* This file is based on a preliminary PowerPC ELF ABI. The
26 information may not match the final PowerPC ELF ABI. It includes
27 suggestions from the in-progress Embedded PowerPC ABI, and that
28 information may also not match. */
37 #include "elf32-ppc.h"
38 #include "elf-vxworks.h"
40 #include "elf-linux-psinfo.h"
42 typedef enum split16_format_type
49 /* RELA relocations are used here. */
51 static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
52 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
53 static bfd_reloc_status_type ppc_elf_unhandled_reloc
54 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
55 static void ppc_elf_vle_split16
56 (bfd *, bfd_byte *, bfd_vma, bfd_vma, split16_format_type);
58 /* Branch prediction bit for branch taken relocs. */
59 #define BRANCH_PREDICT_BIT 0x200000
60 /* Mask to set RA in memory instructions. */
61 #define RA_REGISTER_MASK 0x001f0000
62 /* Value to shift register by to insert RA. */
63 #define RA_REGISTER_SHIFT 16
65 /* The name of the dynamic interpreter. This is put in the .interp
67 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
69 /* For old-style PLT. */
70 /* The number of single-slot PLT entries (the rest use two slots). */
71 #define PLT_NUM_SINGLE_ENTRIES 8192
73 /* For new-style .glink and .plt. */
74 #define GLINK_PLTRESOLVE 16*4
75 #define GLINK_ENTRY_SIZE 4*4
76 #define TLS_GET_ADDR_GLINK_SIZE 12*4
78 /* VxWorks uses its own plt layout, filled in by the static linker. */
80 /* The standard VxWorks PLT entry. */
81 #define VXWORKS_PLT_ENTRY_SIZE 32
82 static const bfd_vma ppc_elf_vxworks_plt_entry
83 [VXWORKS_PLT_ENTRY_SIZE / 4] =
85 0x3d800000, /* lis r12,0 */
86 0x818c0000, /* lwz r12,0(r12) */
87 0x7d8903a6, /* mtctr r12 */
88 0x4e800420, /* bctr */
89 0x39600000, /* li r11,0 */
90 0x48000000, /* b 14 <.PLT0resolve+0x4> */
94 static const bfd_vma ppc_elf_vxworks_pic_plt_entry
95 [VXWORKS_PLT_ENTRY_SIZE / 4] =
97 0x3d9e0000, /* addis r12,r30,0 */
98 0x818c0000, /* lwz r12,0(r12) */
99 0x7d8903a6, /* mtctr r12 */
100 0x4e800420, /* bctr */
101 0x39600000, /* li r11,0 */
102 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
103 0x60000000, /* nop */
104 0x60000000, /* nop */
107 /* The initial VxWorks PLT entry. */
108 #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
109 static const bfd_vma ppc_elf_vxworks_plt0_entry
110 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
112 0x3d800000, /* lis r12,0 */
113 0x398c0000, /* addi r12,r12,0 */
114 0x800c0008, /* lwz r0,8(r12) */
115 0x7c0903a6, /* mtctr r0 */
116 0x818c0004, /* lwz r12,4(r12) */
117 0x4e800420, /* bctr */
118 0x60000000, /* nop */
119 0x60000000, /* nop */
121 static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
122 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
124 0x819e0008, /* lwz r12,8(r30) */
125 0x7d8903a6, /* mtctr r12 */
126 0x819e0004, /* lwz r12,4(r30) */
127 0x4e800420, /* bctr */
128 0x60000000, /* nop */
129 0x60000000, /* nop */
130 0x60000000, /* nop */
131 0x60000000, /* nop */
134 /* For executables, we have some additional relocations in
135 .rela.plt.unloaded, for the kernel loader. */
137 /* The number of non-JMP_SLOT relocations per PLT0 slot. */
138 #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
139 /* The number of relocations in the PLTResolve slot. */
140 #define VXWORKS_PLTRESOLVE_RELOCS 2
141 /* The number of relocations in the PLTResolve slot when when creating
143 #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
145 /* Some instructions. */
146 #define ADDIS_11_11 0x3d6b0000
147 #define ADDIS_11_30 0x3d7e0000
148 #define ADDIS_12_12 0x3d8c0000
149 #define ADDI_11_11 0x396b0000
150 #define ADD_0_11_11 0x7c0b5a14
151 #define ADD_3_12_2 0x7c6c1214
152 #define ADD_11_0_11 0x7d605a14
154 #define BCL_20_31 0x429f0005
155 #define BCTR 0x4e800420
156 #define BEQLR 0x4d820020
157 #define CMPWI_11_0 0x2c0b0000
158 #define LIS_11 0x3d600000
159 #define LIS_12 0x3d800000
160 #define LWZU_0_12 0x840c0000
161 #define LWZ_0_12 0x800c0000
162 #define LWZ_11_3 0x81630000
163 #define LWZ_11_11 0x816b0000
164 #define LWZ_11_30 0x817e0000
165 #define LWZ_12_3 0x81830000
166 #define LWZ_12_12 0x818c0000
167 #define MR_0_3 0x7c601b78
168 #define MR_3_0 0x7c030378
169 #define MFLR_0 0x7c0802a6
170 #define MFLR_12 0x7d8802a6
171 #define MTCTR_0 0x7c0903a6
172 #define MTCTR_11 0x7d6903a6
173 #define MTLR_0 0x7c0803a6
174 #define NOP 0x60000000
175 #define SUB_11_11_12 0x7d6c5850
177 /* Offset of tp and dtp pointers from start of TLS block. */
178 #define TP_OFFSET 0x7000
179 #define DTP_OFFSET 0x8000
181 /* The value of a defined global symbol. */
182 #define SYM_VAL(SYM) \
183 ((SYM)->root.u.def.section->output_section->vma \
184 + (SYM)->root.u.def.section->output_offset \
185 + (SYM)->root.u.def.value)
187 static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
189 static reloc_howto_type ppc_elf_howto_raw[] = {
190 /* This reloc does nothing. */
191 HOWTO (R_PPC_NONE, /* type */
193 2, /* size (0 = byte, 1 = short, 2 = long) */
195 FALSE, /* pc_relative */
197 complain_overflow_bitfield, /* complain_on_overflow */
198 bfd_elf_generic_reloc, /* special_function */
199 "R_PPC_NONE", /* name */
200 FALSE, /* partial_inplace */
203 FALSE), /* pcrel_offset */
205 /* A standard 32 bit relocation. */
206 HOWTO (R_PPC_ADDR32, /* type */
208 2, /* size (0 = byte, 1 = short, 2 = long) */
210 FALSE, /* pc_relative */
212 complain_overflow_bitfield, /* complain_on_overflow */
213 bfd_elf_generic_reloc, /* special_function */
214 "R_PPC_ADDR32", /* name */
215 FALSE, /* partial_inplace */
217 0xffffffff, /* dst_mask */
218 FALSE), /* pcrel_offset */
220 /* An absolute 26 bit branch; the lower two bits must be zero.
221 FIXME: we don't check that, we just clear them. */
222 HOWTO (R_PPC_ADDR24, /* type */
224 2, /* size (0 = byte, 1 = short, 2 = long) */
226 FALSE, /* pc_relative */
228 complain_overflow_bitfield, /* complain_on_overflow */
229 bfd_elf_generic_reloc, /* special_function */
230 "R_PPC_ADDR24", /* name */
231 FALSE, /* partial_inplace */
233 0x3fffffc, /* dst_mask */
234 FALSE), /* pcrel_offset */
236 /* A standard 16 bit relocation. */
237 HOWTO (R_PPC_ADDR16, /* type */
239 1, /* size (0 = byte, 1 = short, 2 = long) */
241 FALSE, /* pc_relative */
243 complain_overflow_bitfield, /* complain_on_overflow */
244 bfd_elf_generic_reloc, /* special_function */
245 "R_PPC_ADDR16", /* name */
246 FALSE, /* partial_inplace */
248 0xffff, /* dst_mask */
249 FALSE), /* pcrel_offset */
251 /* A 16 bit relocation without overflow. */
252 HOWTO (R_PPC_ADDR16_LO, /* type */
254 1, /* size (0 = byte, 1 = short, 2 = long) */
256 FALSE, /* pc_relative */
258 complain_overflow_dont,/* complain_on_overflow */
259 bfd_elf_generic_reloc, /* special_function */
260 "R_PPC_ADDR16_LO", /* name */
261 FALSE, /* partial_inplace */
263 0xffff, /* dst_mask */
264 FALSE), /* pcrel_offset */
266 /* The high order 16 bits of an address. */
267 HOWTO (R_PPC_ADDR16_HI, /* type */
269 1, /* size (0 = byte, 1 = short, 2 = long) */
271 FALSE, /* pc_relative */
273 complain_overflow_dont, /* complain_on_overflow */
274 bfd_elf_generic_reloc, /* special_function */
275 "R_PPC_ADDR16_HI", /* name */
276 FALSE, /* partial_inplace */
278 0xffff, /* dst_mask */
279 FALSE), /* pcrel_offset */
281 /* The high order 16 bits of an address, plus 1 if the contents of
282 the low 16 bits, treated as a signed number, is negative. */
283 HOWTO (R_PPC_ADDR16_HA, /* type */
285 1, /* size (0 = byte, 1 = short, 2 = long) */
287 FALSE, /* pc_relative */
289 complain_overflow_dont, /* complain_on_overflow */
290 ppc_elf_addr16_ha_reloc, /* special_function */
291 "R_PPC_ADDR16_HA", /* name */
292 FALSE, /* partial_inplace */
294 0xffff, /* dst_mask */
295 FALSE), /* pcrel_offset */
297 /* An absolute 16 bit branch; the lower two bits must be zero.
298 FIXME: we don't check that, we just clear them. */
299 HOWTO (R_PPC_ADDR14, /* type */
301 2, /* size (0 = byte, 1 = short, 2 = long) */
303 FALSE, /* pc_relative */
305 complain_overflow_bitfield, /* complain_on_overflow */
306 bfd_elf_generic_reloc, /* special_function */
307 "R_PPC_ADDR14", /* name */
308 FALSE, /* partial_inplace */
310 0xfffc, /* dst_mask */
311 FALSE), /* pcrel_offset */
313 /* An absolute 16 bit branch, for which bit 10 should be set to
314 indicate that the branch is expected to be taken. The lower two
315 bits must be zero. */
316 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
318 2, /* size (0 = byte, 1 = short, 2 = long) */
320 FALSE, /* pc_relative */
322 complain_overflow_bitfield, /* complain_on_overflow */
323 bfd_elf_generic_reloc, /* special_function */
324 "R_PPC_ADDR14_BRTAKEN",/* name */
325 FALSE, /* partial_inplace */
327 0xfffc, /* dst_mask */
328 FALSE), /* pcrel_offset */
330 /* An absolute 16 bit branch, for which bit 10 should be set to
331 indicate that the branch is not expected to be taken. The lower
332 two bits must be zero. */
333 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
335 2, /* size (0 = byte, 1 = short, 2 = long) */
337 FALSE, /* pc_relative */
339 complain_overflow_bitfield, /* complain_on_overflow */
340 bfd_elf_generic_reloc, /* special_function */
341 "R_PPC_ADDR14_BRNTAKEN",/* name */
342 FALSE, /* partial_inplace */
344 0xfffc, /* dst_mask */
345 FALSE), /* pcrel_offset */
347 /* A relative 26 bit branch; the lower two bits must be zero. */
348 HOWTO (R_PPC_REL24, /* type */
350 2, /* size (0 = byte, 1 = short, 2 = long) */
352 TRUE, /* pc_relative */
354 complain_overflow_signed, /* complain_on_overflow */
355 bfd_elf_generic_reloc, /* special_function */
356 "R_PPC_REL24", /* name */
357 FALSE, /* partial_inplace */
359 0x3fffffc, /* dst_mask */
360 TRUE), /* pcrel_offset */
362 /* A relative 16 bit branch; the lower two bits must be zero. */
363 HOWTO (R_PPC_REL14, /* type */
365 2, /* size (0 = byte, 1 = short, 2 = long) */
367 TRUE, /* pc_relative */
369 complain_overflow_signed, /* complain_on_overflow */
370 bfd_elf_generic_reloc, /* special_function */
371 "R_PPC_REL14", /* name */
372 FALSE, /* partial_inplace */
374 0xfffc, /* dst_mask */
375 TRUE), /* pcrel_offset */
377 /* A relative 16 bit branch. Bit 10 should be set to indicate that
378 the branch is expected to be taken. The lower two bits must be
380 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
382 2, /* size (0 = byte, 1 = short, 2 = long) */
384 TRUE, /* pc_relative */
386 complain_overflow_signed, /* complain_on_overflow */
387 bfd_elf_generic_reloc, /* special_function */
388 "R_PPC_REL14_BRTAKEN", /* name */
389 FALSE, /* partial_inplace */
391 0xfffc, /* dst_mask */
392 TRUE), /* pcrel_offset */
394 /* A relative 16 bit branch. Bit 10 should be set to indicate that
395 the branch is not expected to be taken. The lower two bits must
397 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
399 2, /* size (0 = byte, 1 = short, 2 = long) */
401 TRUE, /* pc_relative */
403 complain_overflow_signed, /* complain_on_overflow */
404 bfd_elf_generic_reloc, /* special_function */
405 "R_PPC_REL14_BRNTAKEN",/* name */
406 FALSE, /* partial_inplace */
408 0xfffc, /* dst_mask */
409 TRUE), /* pcrel_offset */
411 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
413 HOWTO (R_PPC_GOT16, /* type */
415 1, /* size (0 = byte, 1 = short, 2 = long) */
417 FALSE, /* pc_relative */
419 complain_overflow_signed, /* complain_on_overflow */
420 bfd_elf_generic_reloc, /* special_function */
421 "R_PPC_GOT16", /* name */
422 FALSE, /* partial_inplace */
424 0xffff, /* dst_mask */
425 FALSE), /* pcrel_offset */
427 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
429 HOWTO (R_PPC_GOT16_LO, /* type */
431 1, /* size (0 = byte, 1 = short, 2 = long) */
433 FALSE, /* pc_relative */
435 complain_overflow_dont, /* complain_on_overflow */
436 bfd_elf_generic_reloc, /* special_function */
437 "R_PPC_GOT16_LO", /* name */
438 FALSE, /* partial_inplace */
440 0xffff, /* dst_mask */
441 FALSE), /* pcrel_offset */
443 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
445 HOWTO (R_PPC_GOT16_HI, /* type */
447 1, /* size (0 = byte, 1 = short, 2 = long) */
449 FALSE, /* pc_relative */
451 complain_overflow_bitfield, /* complain_on_overflow */
452 bfd_elf_generic_reloc, /* special_function */
453 "R_PPC_GOT16_HI", /* name */
454 FALSE, /* partial_inplace */
456 0xffff, /* dst_mask */
457 FALSE), /* pcrel_offset */
459 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
461 HOWTO (R_PPC_GOT16_HA, /* type */
463 1, /* size (0 = byte, 1 = short, 2 = long) */
465 FALSE, /* pc_relative */
467 complain_overflow_bitfield, /* complain_on_overflow */
468 ppc_elf_addr16_ha_reloc, /* special_function */
469 "R_PPC_GOT16_HA", /* name */
470 FALSE, /* partial_inplace */
472 0xffff, /* dst_mask */
473 FALSE), /* pcrel_offset */
475 /* Like R_PPC_REL24, but referring to the procedure linkage table
476 entry for the symbol. */
477 HOWTO (R_PPC_PLTREL24, /* type */
479 2, /* size (0 = byte, 1 = short, 2 = long) */
481 TRUE, /* pc_relative */
483 complain_overflow_signed, /* complain_on_overflow */
484 bfd_elf_generic_reloc, /* special_function */
485 "R_PPC_PLTREL24", /* name */
486 FALSE, /* partial_inplace */
488 0x3fffffc, /* dst_mask */
489 TRUE), /* pcrel_offset */
491 /* This is used only by the dynamic linker. The symbol should exist
492 both in the object being run and in some shared library. The
493 dynamic linker copies the data addressed by the symbol from the
494 shared library into the object, because the object being
495 run has to have the data at some particular address. */
496 HOWTO (R_PPC_COPY, /* type */
498 2, /* size (0 = byte, 1 = short, 2 = long) */
500 FALSE, /* pc_relative */
502 complain_overflow_bitfield, /* complain_on_overflow */
503 bfd_elf_generic_reloc, /* special_function */
504 "R_PPC_COPY", /* name */
505 FALSE, /* partial_inplace */
508 FALSE), /* pcrel_offset */
510 /* Like R_PPC_ADDR32, but used when setting global offset table
512 HOWTO (R_PPC_GLOB_DAT, /* type */
514 2, /* size (0 = byte, 1 = short, 2 = long) */
516 FALSE, /* pc_relative */
518 complain_overflow_bitfield, /* complain_on_overflow */
519 bfd_elf_generic_reloc, /* special_function */
520 "R_PPC_GLOB_DAT", /* name */
521 FALSE, /* partial_inplace */
523 0xffffffff, /* dst_mask */
524 FALSE), /* pcrel_offset */
526 /* Marks a procedure linkage table entry for a symbol. */
527 HOWTO (R_PPC_JMP_SLOT, /* type */
529 2, /* size (0 = byte, 1 = short, 2 = long) */
531 FALSE, /* pc_relative */
533 complain_overflow_bitfield, /* complain_on_overflow */
534 bfd_elf_generic_reloc, /* special_function */
535 "R_PPC_JMP_SLOT", /* name */
536 FALSE, /* partial_inplace */
539 FALSE), /* pcrel_offset */
541 /* Used only by the dynamic linker. When the object is run, this
542 longword is set to the load address of the object, plus the
544 HOWTO (R_PPC_RELATIVE, /* type */
546 2, /* size (0 = byte, 1 = short, 2 = long) */
548 FALSE, /* pc_relative */
550 complain_overflow_bitfield, /* complain_on_overflow */
551 bfd_elf_generic_reloc, /* special_function */
552 "R_PPC_RELATIVE", /* name */
553 FALSE, /* partial_inplace */
555 0xffffffff, /* dst_mask */
556 FALSE), /* pcrel_offset */
558 /* Like R_PPC_REL24, but uses the value of the symbol within the
559 object rather than the final value. Normally used for
560 _GLOBAL_OFFSET_TABLE_. */
561 HOWTO (R_PPC_LOCAL24PC, /* type */
563 2, /* size (0 = byte, 1 = short, 2 = long) */
565 TRUE, /* pc_relative */
567 complain_overflow_signed, /* complain_on_overflow */
568 bfd_elf_generic_reloc, /* special_function */
569 "R_PPC_LOCAL24PC", /* name */
570 FALSE, /* partial_inplace */
572 0x3fffffc, /* dst_mask */
573 TRUE), /* pcrel_offset */
575 /* Like R_PPC_ADDR32, but may be unaligned. */
576 HOWTO (R_PPC_UADDR32, /* type */
578 2, /* size (0 = byte, 1 = short, 2 = long) */
580 FALSE, /* pc_relative */
582 complain_overflow_bitfield, /* complain_on_overflow */
583 bfd_elf_generic_reloc, /* special_function */
584 "R_PPC_UADDR32", /* name */
585 FALSE, /* partial_inplace */
587 0xffffffff, /* dst_mask */
588 FALSE), /* pcrel_offset */
590 /* Like R_PPC_ADDR16, but may be unaligned. */
591 HOWTO (R_PPC_UADDR16, /* type */
593 1, /* size (0 = byte, 1 = short, 2 = long) */
595 FALSE, /* pc_relative */
597 complain_overflow_bitfield, /* complain_on_overflow */
598 bfd_elf_generic_reloc, /* special_function */
599 "R_PPC_UADDR16", /* name */
600 FALSE, /* partial_inplace */
602 0xffff, /* dst_mask */
603 FALSE), /* pcrel_offset */
605 /* 32-bit PC relative */
606 HOWTO (R_PPC_REL32, /* type */
608 2, /* size (0 = byte, 1 = short, 2 = long) */
610 TRUE, /* pc_relative */
612 complain_overflow_bitfield, /* complain_on_overflow */
613 bfd_elf_generic_reloc, /* special_function */
614 "R_PPC_REL32", /* name */
615 FALSE, /* partial_inplace */
617 0xffffffff, /* dst_mask */
618 TRUE), /* pcrel_offset */
620 /* 32-bit relocation to the symbol's procedure linkage table.
621 FIXME: not supported. */
622 HOWTO (R_PPC_PLT32, /* type */
624 2, /* size (0 = byte, 1 = short, 2 = long) */
626 FALSE, /* pc_relative */
628 complain_overflow_bitfield, /* complain_on_overflow */
629 bfd_elf_generic_reloc, /* special_function */
630 "R_PPC_PLT32", /* name */
631 FALSE, /* partial_inplace */
634 FALSE), /* pcrel_offset */
636 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
637 FIXME: not supported. */
638 HOWTO (R_PPC_PLTREL32, /* type */
640 2, /* size (0 = byte, 1 = short, 2 = long) */
642 TRUE, /* pc_relative */
644 complain_overflow_bitfield, /* complain_on_overflow */
645 bfd_elf_generic_reloc, /* special_function */
646 "R_PPC_PLTREL32", /* name */
647 FALSE, /* partial_inplace */
650 TRUE), /* pcrel_offset */
652 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
654 HOWTO (R_PPC_PLT16_LO, /* type */
656 1, /* size (0 = byte, 1 = short, 2 = long) */
658 FALSE, /* pc_relative */
660 complain_overflow_dont, /* complain_on_overflow */
661 bfd_elf_generic_reloc, /* special_function */
662 "R_PPC_PLT16_LO", /* name */
663 FALSE, /* partial_inplace */
665 0xffff, /* dst_mask */
666 FALSE), /* pcrel_offset */
668 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
670 HOWTO (R_PPC_PLT16_HI, /* type */
672 1, /* size (0 = byte, 1 = short, 2 = long) */
674 FALSE, /* pc_relative */
676 complain_overflow_bitfield, /* complain_on_overflow */
677 bfd_elf_generic_reloc, /* special_function */
678 "R_PPC_PLT16_HI", /* name */
679 FALSE, /* partial_inplace */
681 0xffff, /* dst_mask */
682 FALSE), /* pcrel_offset */
684 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
686 HOWTO (R_PPC_PLT16_HA, /* type */
688 1, /* size (0 = byte, 1 = short, 2 = long) */
690 FALSE, /* pc_relative */
692 complain_overflow_bitfield, /* complain_on_overflow */
693 ppc_elf_addr16_ha_reloc, /* special_function */
694 "R_PPC_PLT16_HA", /* name */
695 FALSE, /* partial_inplace */
697 0xffff, /* dst_mask */
698 FALSE), /* pcrel_offset */
700 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
702 HOWTO (R_PPC_SDAREL16, /* type */
704 1, /* size (0 = byte, 1 = short, 2 = long) */
706 FALSE, /* pc_relative */
708 complain_overflow_signed, /* complain_on_overflow */
709 bfd_elf_generic_reloc, /* special_function */
710 "R_PPC_SDAREL16", /* name */
711 FALSE, /* partial_inplace */
713 0xffff, /* dst_mask */
714 FALSE), /* pcrel_offset */
716 /* 16-bit section relative relocation. */
717 HOWTO (R_PPC_SECTOFF, /* type */
719 1, /* size (0 = byte, 1 = short, 2 = long) */
721 FALSE, /* pc_relative */
723 complain_overflow_bitfield, /* complain_on_overflow */
724 bfd_elf_generic_reloc, /* special_function */
725 "R_PPC_SECTOFF", /* name */
726 FALSE, /* partial_inplace */
728 0xffff, /* dst_mask */
729 FALSE), /* pcrel_offset */
731 /* 16-bit lower half section relative relocation. */
732 HOWTO (R_PPC_SECTOFF_LO, /* type */
734 1, /* size (0 = byte, 1 = short, 2 = long) */
736 FALSE, /* pc_relative */
738 complain_overflow_dont, /* complain_on_overflow */
739 bfd_elf_generic_reloc, /* special_function */
740 "R_PPC_SECTOFF_LO", /* name */
741 FALSE, /* partial_inplace */
743 0xffff, /* dst_mask */
744 FALSE), /* pcrel_offset */
746 /* 16-bit upper half section relative relocation. */
747 HOWTO (R_PPC_SECTOFF_HI, /* type */
749 1, /* size (0 = byte, 1 = short, 2 = long) */
751 FALSE, /* pc_relative */
753 complain_overflow_bitfield, /* complain_on_overflow */
754 bfd_elf_generic_reloc, /* special_function */
755 "R_PPC_SECTOFF_HI", /* name */
756 FALSE, /* partial_inplace */
758 0xffff, /* dst_mask */
759 FALSE), /* pcrel_offset */
761 /* 16-bit upper half adjusted section relative relocation. */
762 HOWTO (R_PPC_SECTOFF_HA, /* type */
764 1, /* size (0 = byte, 1 = short, 2 = long) */
766 FALSE, /* pc_relative */
768 complain_overflow_bitfield, /* complain_on_overflow */
769 ppc_elf_addr16_ha_reloc, /* special_function */
770 "R_PPC_SECTOFF_HA", /* name */
771 FALSE, /* partial_inplace */
773 0xffff, /* dst_mask */
774 FALSE), /* pcrel_offset */
776 /* Marker relocs for TLS. */
779 2, /* size (0 = byte, 1 = short, 2 = long) */
781 FALSE, /* pc_relative */
783 complain_overflow_dont, /* complain_on_overflow */
784 bfd_elf_generic_reloc, /* special_function */
785 "R_PPC_TLS", /* name */
786 FALSE, /* partial_inplace */
789 FALSE), /* pcrel_offset */
793 2, /* size (0 = byte, 1 = short, 2 = long) */
795 FALSE, /* pc_relative */
797 complain_overflow_dont, /* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
799 "R_PPC_TLSGD", /* name */
800 FALSE, /* partial_inplace */
803 FALSE), /* pcrel_offset */
807 2, /* size (0 = byte, 1 = short, 2 = long) */
809 FALSE, /* pc_relative */
811 complain_overflow_dont, /* complain_on_overflow */
812 bfd_elf_generic_reloc, /* special_function */
813 "R_PPC_TLSLD", /* name */
814 FALSE, /* partial_inplace */
817 FALSE), /* pcrel_offset */
819 /* Computes the load module index of the load module that contains the
820 definition of its TLS sym. */
821 HOWTO (R_PPC_DTPMOD32,
823 2, /* size (0 = byte, 1 = short, 2 = long) */
825 FALSE, /* pc_relative */
827 complain_overflow_dont, /* complain_on_overflow */
828 ppc_elf_unhandled_reloc, /* special_function */
829 "R_PPC_DTPMOD32", /* name */
830 FALSE, /* partial_inplace */
832 0xffffffff, /* dst_mask */
833 FALSE), /* pcrel_offset */
835 /* Computes a dtv-relative displacement, the difference between the value
836 of sym+add and the base address of the thread-local storage block that
837 contains the definition of sym, minus 0x8000. */
838 HOWTO (R_PPC_DTPREL32,
840 2, /* size (0 = byte, 1 = short, 2 = long) */
842 FALSE, /* pc_relative */
844 complain_overflow_dont, /* complain_on_overflow */
845 ppc_elf_unhandled_reloc, /* special_function */
846 "R_PPC_DTPREL32", /* name */
847 FALSE, /* partial_inplace */
849 0xffffffff, /* dst_mask */
850 FALSE), /* pcrel_offset */
852 /* A 16 bit dtprel reloc. */
853 HOWTO (R_PPC_DTPREL16,
855 1, /* size (0 = byte, 1 = short, 2 = long) */
857 FALSE, /* pc_relative */
859 complain_overflow_signed, /* complain_on_overflow */
860 ppc_elf_unhandled_reloc, /* special_function */
861 "R_PPC_DTPREL16", /* name */
862 FALSE, /* partial_inplace */
864 0xffff, /* dst_mask */
865 FALSE), /* pcrel_offset */
867 /* Like DTPREL16, but no overflow. */
868 HOWTO (R_PPC_DTPREL16_LO,
870 1, /* size (0 = byte, 1 = short, 2 = long) */
872 FALSE, /* pc_relative */
874 complain_overflow_dont, /* complain_on_overflow */
875 ppc_elf_unhandled_reloc, /* special_function */
876 "R_PPC_DTPREL16_LO", /* name */
877 FALSE, /* partial_inplace */
879 0xffff, /* dst_mask */
880 FALSE), /* pcrel_offset */
882 /* Like DTPREL16_LO, but next higher group of 16 bits. */
883 HOWTO (R_PPC_DTPREL16_HI,
885 1, /* size (0 = byte, 1 = short, 2 = long) */
887 FALSE, /* pc_relative */
889 complain_overflow_dont, /* complain_on_overflow */
890 ppc_elf_unhandled_reloc, /* special_function */
891 "R_PPC_DTPREL16_HI", /* name */
892 FALSE, /* partial_inplace */
894 0xffff, /* dst_mask */
895 FALSE), /* pcrel_offset */
897 /* Like DTPREL16_HI, but adjust for low 16 bits. */
898 HOWTO (R_PPC_DTPREL16_HA,
900 1, /* size (0 = byte, 1 = short, 2 = long) */
902 FALSE, /* pc_relative */
904 complain_overflow_dont, /* complain_on_overflow */
905 ppc_elf_unhandled_reloc, /* special_function */
906 "R_PPC_DTPREL16_HA", /* name */
907 FALSE, /* partial_inplace */
909 0xffff, /* dst_mask */
910 FALSE), /* pcrel_offset */
912 /* Computes a tp-relative displacement, the difference between the value of
913 sym+add and the value of the thread pointer (r13). */
914 HOWTO (R_PPC_TPREL32,
916 2, /* size (0 = byte, 1 = short, 2 = long) */
918 FALSE, /* pc_relative */
920 complain_overflow_dont, /* complain_on_overflow */
921 ppc_elf_unhandled_reloc, /* special_function */
922 "R_PPC_TPREL32", /* name */
923 FALSE, /* partial_inplace */
925 0xffffffff, /* dst_mask */
926 FALSE), /* pcrel_offset */
928 /* A 16 bit tprel reloc. */
929 HOWTO (R_PPC_TPREL16,
931 1, /* size (0 = byte, 1 = short, 2 = long) */
933 FALSE, /* pc_relative */
935 complain_overflow_signed, /* complain_on_overflow */
936 ppc_elf_unhandled_reloc, /* special_function */
937 "R_PPC_TPREL16", /* name */
938 FALSE, /* partial_inplace */
940 0xffff, /* dst_mask */
941 FALSE), /* pcrel_offset */
943 /* Like TPREL16, but no overflow. */
944 HOWTO (R_PPC_TPREL16_LO,
946 1, /* size (0 = byte, 1 = short, 2 = long) */
948 FALSE, /* pc_relative */
950 complain_overflow_dont, /* complain_on_overflow */
951 ppc_elf_unhandled_reloc, /* special_function */
952 "R_PPC_TPREL16_LO", /* name */
953 FALSE, /* partial_inplace */
955 0xffff, /* dst_mask */
956 FALSE), /* pcrel_offset */
958 /* Like TPREL16_LO, but next higher group of 16 bits. */
959 HOWTO (R_PPC_TPREL16_HI,
961 1, /* size (0 = byte, 1 = short, 2 = long) */
963 FALSE, /* pc_relative */
965 complain_overflow_dont, /* complain_on_overflow */
966 ppc_elf_unhandled_reloc, /* special_function */
967 "R_PPC_TPREL16_HI", /* name */
968 FALSE, /* partial_inplace */
970 0xffff, /* dst_mask */
971 FALSE), /* pcrel_offset */
973 /* Like TPREL16_HI, but adjust for low 16 bits. */
974 HOWTO (R_PPC_TPREL16_HA,
976 1, /* size (0 = byte, 1 = short, 2 = long) */
978 FALSE, /* pc_relative */
980 complain_overflow_dont, /* complain_on_overflow */
981 ppc_elf_unhandled_reloc, /* special_function */
982 "R_PPC_TPREL16_HA", /* name */
983 FALSE, /* partial_inplace */
985 0xffff, /* dst_mask */
986 FALSE), /* pcrel_offset */
988 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
989 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
990 to the first entry. */
991 HOWTO (R_PPC_GOT_TLSGD16,
993 1, /* size (0 = byte, 1 = short, 2 = long) */
995 FALSE, /* pc_relative */
997 complain_overflow_signed, /* complain_on_overflow */
998 ppc_elf_unhandled_reloc, /* special_function */
999 "R_PPC_GOT_TLSGD16", /* name */
1000 FALSE, /* partial_inplace */
1002 0xffff, /* dst_mask */
1003 FALSE), /* pcrel_offset */
1005 /* Like GOT_TLSGD16, but no overflow. */
1006 HOWTO (R_PPC_GOT_TLSGD16_LO,
1008 1, /* size (0 = byte, 1 = short, 2 = long) */
1010 FALSE, /* pc_relative */
1012 complain_overflow_dont, /* complain_on_overflow */
1013 ppc_elf_unhandled_reloc, /* special_function */
1014 "R_PPC_GOT_TLSGD16_LO", /* name */
1015 FALSE, /* partial_inplace */
1017 0xffff, /* dst_mask */
1018 FALSE), /* pcrel_offset */
1020 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1021 HOWTO (R_PPC_GOT_TLSGD16_HI,
1022 16, /* rightshift */
1023 1, /* size (0 = byte, 1 = short, 2 = long) */
1025 FALSE, /* pc_relative */
1027 complain_overflow_dont, /* complain_on_overflow */
1028 ppc_elf_unhandled_reloc, /* special_function */
1029 "R_PPC_GOT_TLSGD16_HI", /* name */
1030 FALSE, /* partial_inplace */
1032 0xffff, /* dst_mask */
1033 FALSE), /* pcrel_offset */
1035 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1036 HOWTO (R_PPC_GOT_TLSGD16_HA,
1037 16, /* rightshift */
1038 1, /* size (0 = byte, 1 = short, 2 = long) */
1040 FALSE, /* pc_relative */
1042 complain_overflow_dont, /* complain_on_overflow */
1043 ppc_elf_unhandled_reloc, /* special_function */
1044 "R_PPC_GOT_TLSGD16_HA", /* name */
1045 FALSE, /* partial_inplace */
1047 0xffff, /* dst_mask */
1048 FALSE), /* pcrel_offset */
1050 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1051 with values (sym+add)@dtpmod and zero, and computes the offset to the
1053 HOWTO (R_PPC_GOT_TLSLD16,
1055 1, /* size (0 = byte, 1 = short, 2 = long) */
1057 FALSE, /* pc_relative */
1059 complain_overflow_signed, /* complain_on_overflow */
1060 ppc_elf_unhandled_reloc, /* special_function */
1061 "R_PPC_GOT_TLSLD16", /* name */
1062 FALSE, /* partial_inplace */
1064 0xffff, /* dst_mask */
1065 FALSE), /* pcrel_offset */
1067 /* Like GOT_TLSLD16, but no overflow. */
1068 HOWTO (R_PPC_GOT_TLSLD16_LO,
1070 1, /* size (0 = byte, 1 = short, 2 = long) */
1072 FALSE, /* pc_relative */
1074 complain_overflow_dont, /* complain_on_overflow */
1075 ppc_elf_unhandled_reloc, /* special_function */
1076 "R_PPC_GOT_TLSLD16_LO", /* name */
1077 FALSE, /* partial_inplace */
1079 0xffff, /* dst_mask */
1080 FALSE), /* pcrel_offset */
1082 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1083 HOWTO (R_PPC_GOT_TLSLD16_HI,
1084 16, /* rightshift */
1085 1, /* size (0 = byte, 1 = short, 2 = long) */
1087 FALSE, /* pc_relative */
1089 complain_overflow_dont, /* complain_on_overflow */
1090 ppc_elf_unhandled_reloc, /* special_function */
1091 "R_PPC_GOT_TLSLD16_HI", /* name */
1092 FALSE, /* partial_inplace */
1094 0xffff, /* dst_mask */
1095 FALSE), /* pcrel_offset */
1097 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1098 HOWTO (R_PPC_GOT_TLSLD16_HA,
1099 16, /* rightshift */
1100 1, /* size (0 = byte, 1 = short, 2 = long) */
1102 FALSE, /* pc_relative */
1104 complain_overflow_dont, /* complain_on_overflow */
1105 ppc_elf_unhandled_reloc, /* special_function */
1106 "R_PPC_GOT_TLSLD16_HA", /* name */
1107 FALSE, /* partial_inplace */
1109 0xffff, /* dst_mask */
1110 FALSE), /* pcrel_offset */
1112 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1113 the offset to the entry. */
1114 HOWTO (R_PPC_GOT_DTPREL16,
1116 1, /* size (0 = byte, 1 = short, 2 = long) */
1118 FALSE, /* pc_relative */
1120 complain_overflow_signed, /* complain_on_overflow */
1121 ppc_elf_unhandled_reloc, /* special_function */
1122 "R_PPC_GOT_DTPREL16", /* name */
1123 FALSE, /* partial_inplace */
1125 0xffff, /* dst_mask */
1126 FALSE), /* pcrel_offset */
1128 /* Like GOT_DTPREL16, but no overflow. */
1129 HOWTO (R_PPC_GOT_DTPREL16_LO,
1131 1, /* size (0 = byte, 1 = short, 2 = long) */
1133 FALSE, /* pc_relative */
1135 complain_overflow_dont, /* complain_on_overflow */
1136 ppc_elf_unhandled_reloc, /* special_function */
1137 "R_PPC_GOT_DTPREL16_LO", /* name */
1138 FALSE, /* partial_inplace */
1140 0xffff, /* dst_mask */
1141 FALSE), /* pcrel_offset */
1143 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1144 HOWTO (R_PPC_GOT_DTPREL16_HI,
1145 16, /* rightshift */
1146 1, /* size (0 = byte, 1 = short, 2 = long) */
1148 FALSE, /* pc_relative */
1150 complain_overflow_dont, /* complain_on_overflow */
1151 ppc_elf_unhandled_reloc, /* special_function */
1152 "R_PPC_GOT_DTPREL16_HI", /* name */
1153 FALSE, /* partial_inplace */
1155 0xffff, /* dst_mask */
1156 FALSE), /* pcrel_offset */
1158 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1159 HOWTO (R_PPC_GOT_DTPREL16_HA,
1160 16, /* rightshift */
1161 1, /* size (0 = byte, 1 = short, 2 = long) */
1163 FALSE, /* pc_relative */
1165 complain_overflow_dont, /* complain_on_overflow */
1166 ppc_elf_unhandled_reloc, /* special_function */
1167 "R_PPC_GOT_DTPREL16_HA", /* name */
1168 FALSE, /* partial_inplace */
1170 0xffff, /* dst_mask */
1171 FALSE), /* pcrel_offset */
1173 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1174 offset to the entry. */
1175 HOWTO (R_PPC_GOT_TPREL16,
1177 1, /* size (0 = byte, 1 = short, 2 = long) */
1179 FALSE, /* pc_relative */
1181 complain_overflow_signed, /* complain_on_overflow */
1182 ppc_elf_unhandled_reloc, /* special_function */
1183 "R_PPC_GOT_TPREL16", /* name */
1184 FALSE, /* partial_inplace */
1186 0xffff, /* dst_mask */
1187 FALSE), /* pcrel_offset */
1189 /* Like GOT_TPREL16, but no overflow. */
1190 HOWTO (R_PPC_GOT_TPREL16_LO,
1192 1, /* size (0 = byte, 1 = short, 2 = long) */
1194 FALSE, /* pc_relative */
1196 complain_overflow_dont, /* complain_on_overflow */
1197 ppc_elf_unhandled_reloc, /* special_function */
1198 "R_PPC_GOT_TPREL16_LO", /* name */
1199 FALSE, /* partial_inplace */
1201 0xffff, /* dst_mask */
1202 FALSE), /* pcrel_offset */
1204 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1205 HOWTO (R_PPC_GOT_TPREL16_HI,
1206 16, /* rightshift */
1207 1, /* size (0 = byte, 1 = short, 2 = long) */
1209 FALSE, /* pc_relative */
1211 complain_overflow_dont, /* complain_on_overflow */
1212 ppc_elf_unhandled_reloc, /* special_function */
1213 "R_PPC_GOT_TPREL16_HI", /* name */
1214 FALSE, /* partial_inplace */
1216 0xffff, /* dst_mask */
1217 FALSE), /* pcrel_offset */
1219 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1220 HOWTO (R_PPC_GOT_TPREL16_HA,
1221 16, /* rightshift */
1222 1, /* size (0 = byte, 1 = short, 2 = long) */
1224 FALSE, /* pc_relative */
1226 complain_overflow_dont, /* complain_on_overflow */
1227 ppc_elf_unhandled_reloc, /* special_function */
1228 "R_PPC_GOT_TPREL16_HA", /* name */
1229 FALSE, /* partial_inplace */
1231 0xffff, /* dst_mask */
1232 FALSE), /* pcrel_offset */
1234 /* The remaining relocs are from the Embedded ELF ABI, and are not
1235 in the SVR4 ELF ABI. */
1237 /* 32 bit value resulting from the addend minus the symbol. */
1238 HOWTO (R_PPC_EMB_NADDR32, /* type */
1240 2, /* size (0 = byte, 1 = short, 2 = long) */
1242 FALSE, /* pc_relative */
1244 complain_overflow_bitfield, /* complain_on_overflow */
1245 bfd_elf_generic_reloc, /* special_function */
1246 "R_PPC_EMB_NADDR32", /* name */
1247 FALSE, /* partial_inplace */
1249 0xffffffff, /* dst_mask */
1250 FALSE), /* pcrel_offset */
1252 /* 16 bit value resulting from the addend minus the symbol. */
1253 HOWTO (R_PPC_EMB_NADDR16, /* type */
1255 1, /* size (0 = byte, 1 = short, 2 = long) */
1257 FALSE, /* pc_relative */
1259 complain_overflow_bitfield, /* complain_on_overflow */
1260 bfd_elf_generic_reloc, /* special_function */
1261 "R_PPC_EMB_NADDR16", /* name */
1262 FALSE, /* partial_inplace */
1264 0xffff, /* dst_mask */
1265 FALSE), /* pcrel_offset */
1267 /* 16 bit value resulting from the addend minus the symbol. */
1268 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1270 1, /* size (0 = byte, 1 = short, 2 = long) */
1272 FALSE, /* pc_relative */
1274 complain_overflow_dont,/* complain_on_overflow */
1275 bfd_elf_generic_reloc, /* special_function */
1276 "R_PPC_EMB_ADDR16_LO", /* name */
1277 FALSE, /* partial_inplace */
1279 0xffff, /* dst_mask */
1280 FALSE), /* pcrel_offset */
1282 /* The high order 16 bits of the addend minus the symbol. */
1283 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1284 16, /* rightshift */
1285 1, /* size (0 = byte, 1 = short, 2 = long) */
1287 FALSE, /* pc_relative */
1289 complain_overflow_dont, /* complain_on_overflow */
1290 bfd_elf_generic_reloc, /* special_function */
1291 "R_PPC_EMB_NADDR16_HI", /* name */
1292 FALSE, /* partial_inplace */
1294 0xffff, /* dst_mask */
1295 FALSE), /* pcrel_offset */
1297 /* The high order 16 bits of the result of the addend minus the address,
1298 plus 1 if the contents of the low 16 bits, treated as a signed number,
1300 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1301 16, /* rightshift */
1302 1, /* size (0 = byte, 1 = short, 2 = long) */
1304 FALSE, /* pc_relative */
1306 complain_overflow_dont, /* complain_on_overflow */
1307 ppc_elf_addr16_ha_reloc, /* special_function */
1308 "R_PPC_EMB_NADDR16_HA", /* name */
1309 FALSE, /* partial_inplace */
1311 0xffff, /* dst_mask */
1312 FALSE), /* pcrel_offset */
1314 /* 16 bit value resulting from allocating a 4 byte word to hold an
1315 address in the .sdata section, and returning the offset from
1316 _SDA_BASE_ for that relocation. */
1317 HOWTO (R_PPC_EMB_SDAI16, /* type */
1319 1, /* size (0 = byte, 1 = short, 2 = long) */
1321 FALSE, /* pc_relative */
1323 complain_overflow_signed, /* complain_on_overflow */
1324 bfd_elf_generic_reloc, /* special_function */
1325 "R_PPC_EMB_SDAI16", /* name */
1326 FALSE, /* partial_inplace */
1328 0xffff, /* dst_mask */
1329 FALSE), /* pcrel_offset */
1331 /* 16 bit value resulting from allocating a 4 byte word to hold an
1332 address in the .sdata2 section, and returning the offset from
1333 _SDA2_BASE_ for that relocation. */
1334 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1336 1, /* size (0 = byte, 1 = short, 2 = long) */
1338 FALSE, /* pc_relative */
1340 complain_overflow_signed, /* complain_on_overflow */
1341 bfd_elf_generic_reloc, /* special_function */
1342 "R_PPC_EMB_SDA2I16", /* name */
1343 FALSE, /* partial_inplace */
1345 0xffff, /* dst_mask */
1346 FALSE), /* pcrel_offset */
1348 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1349 small data items. */
1350 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1352 1, /* size (0 = byte, 1 = short, 2 = long) */
1354 FALSE, /* pc_relative */
1356 complain_overflow_signed, /* complain_on_overflow */
1357 bfd_elf_generic_reloc, /* special_function */
1358 "R_PPC_EMB_SDA2REL", /* name */
1359 FALSE, /* partial_inplace */
1361 0xffff, /* dst_mask */
1362 FALSE), /* pcrel_offset */
1364 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1365 signed offset from the appropriate base, and filling in the register
1366 field with the appropriate register (0, 2, or 13). */
1367 HOWTO (R_PPC_EMB_SDA21, /* type */
1369 2, /* size (0 = byte, 1 = short, 2 = long) */
1371 FALSE, /* pc_relative */
1373 complain_overflow_signed, /* complain_on_overflow */
1374 bfd_elf_generic_reloc, /* special_function */
1375 "R_PPC_EMB_SDA21", /* name */
1376 FALSE, /* partial_inplace */
1378 0xffff, /* dst_mask */
1379 FALSE), /* pcrel_offset */
1381 /* Relocation not handled: R_PPC_EMB_MRKREF */
1382 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1383 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1384 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1385 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1386 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1388 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1389 in the 16 bit signed offset from the appropriate base, and filling in the
1390 register field with the appropriate register (0, 2, or 13). */
1391 HOWTO (R_PPC_EMB_RELSDA, /* type */
1393 1, /* size (0 = byte, 1 = short, 2 = long) */
1395 FALSE, /* pc_relative */
1397 complain_overflow_signed, /* complain_on_overflow */
1398 bfd_elf_generic_reloc, /* special_function */
1399 "R_PPC_EMB_RELSDA", /* name */
1400 FALSE, /* partial_inplace */
1402 0xffff, /* dst_mask */
1403 FALSE), /* pcrel_offset */
1405 /* A relative 8 bit branch. */
1406 HOWTO (R_PPC_VLE_REL8, /* type */
1408 1, /* size (0 = byte, 1 = short, 2 = long) */
1410 TRUE, /* pc_relative */
1412 complain_overflow_signed, /* complain_on_overflow */
1413 bfd_elf_generic_reloc, /* special_function */
1414 "R_PPC_VLE_REL8", /* name */
1415 FALSE, /* partial_inplace */
1417 0xff, /* dst_mask */
1418 TRUE), /* pcrel_offset */
1420 /* A relative 15 bit branch. */
1421 HOWTO (R_PPC_VLE_REL15, /* type */
1423 2, /* size (0 = byte, 1 = short, 2 = long) */
1425 TRUE, /* pc_relative */
1427 complain_overflow_signed, /* complain_on_overflow */
1428 bfd_elf_generic_reloc, /* special_function */
1429 "R_PPC_VLE_REL15", /* name */
1430 FALSE, /* partial_inplace */
1432 0xfe, /* dst_mask */
1433 TRUE), /* pcrel_offset */
1435 /* A relative 24 bit branch. */
1436 HOWTO (R_PPC_VLE_REL24, /* type */
1438 2, /* size (0 = byte, 1 = short, 2 = long) */
1440 TRUE, /* pc_relative */
1442 complain_overflow_signed, /* complain_on_overflow */
1443 bfd_elf_generic_reloc, /* special_function */
1444 "R_PPC_VLE_REL24", /* name */
1445 FALSE, /* partial_inplace */
1447 0x1fffffe, /* dst_mask */
1448 TRUE), /* pcrel_offset */
1450 /* The 16 LSBS in split16a format. */
1451 HOWTO (R_PPC_VLE_LO16A, /* type */
1453 2, /* size (0 = byte, 1 = short, 2 = long) */
1455 FALSE, /* pc_relative */
1457 complain_overflow_bitfield, /* complain_on_overflow */
1458 bfd_elf_generic_reloc, /* special_function */
1459 "R_PPC_VLE_LO16A", /* name */
1460 FALSE, /* partial_inplace */
1462 0x1f007ff, /* dst_mask */
1463 FALSE), /* pcrel_offset */
1465 /* The 16 LSBS in split16d format. */
1466 HOWTO (R_PPC_VLE_LO16D, /* type */
1468 2, /* size (0 = byte, 1 = short, 2 = long) */
1470 FALSE, /* pc_relative */
1472 complain_overflow_bitfield, /* complain_on_overflow */
1473 bfd_elf_generic_reloc, /* special_function */
1474 "R_PPC_VLE_LO16D", /* name */
1475 FALSE, /* partial_inplace */
1477 0x1f07ff, /* dst_mask */
1478 FALSE), /* pcrel_offset */
1480 /* Bits 16-31 split16a format. */
1481 HOWTO (R_PPC_VLE_HI16A, /* type */
1483 2, /* size (0 = byte, 1 = short, 2 = long) */
1485 FALSE, /* pc_relative */
1487 complain_overflow_bitfield, /* complain_on_overflow */
1488 bfd_elf_generic_reloc, /* special_function */
1489 "R_PPC_VLE_HI16A", /* name */
1490 FALSE, /* partial_inplace */
1492 0x1f007ff, /* dst_mask */
1493 FALSE), /* pcrel_offset */
1495 /* Bits 16-31 split16d format. */
1496 HOWTO (R_PPC_VLE_HI16D, /* type */
1498 2, /* size (0 = byte, 1 = short, 2 = long) */
1500 FALSE, /* pc_relative */
1502 complain_overflow_bitfield, /* complain_on_overflow */
1503 bfd_elf_generic_reloc, /* special_function */
1504 "R_PPC_VLE_HI16D", /* name */
1505 FALSE, /* partial_inplace */
1507 0x1f07ff, /* dst_mask */
1508 FALSE), /* pcrel_offset */
1510 /* Bits 16-31 (High Adjusted) in split16a format. */
1511 HOWTO (R_PPC_VLE_HA16A, /* type */
1513 2, /* size (0 = byte, 1 = short, 2 = long) */
1515 FALSE, /* pc_relative */
1517 complain_overflow_bitfield, /* complain_on_overflow */
1518 bfd_elf_generic_reloc, /* special_function */
1519 "R_PPC_VLE_HA16A", /* name */
1520 FALSE, /* partial_inplace */
1522 0x1f007ff, /* dst_mask */
1523 FALSE), /* pcrel_offset */
1525 /* Bits 16-31 (High Adjusted) in split16d format. */
1526 HOWTO (R_PPC_VLE_HA16D, /* type */
1528 2, /* size (0 = byte, 1 = short, 2 = long) */
1530 FALSE, /* pc_relative */
1532 complain_overflow_bitfield, /* complain_on_overflow */
1533 bfd_elf_generic_reloc, /* special_function */
1534 "R_PPC_VLE_HA16D", /* name */
1535 FALSE, /* partial_inplace */
1537 0x1f07ff, /* dst_mask */
1538 FALSE), /* pcrel_offset */
1540 /* This reloc does nothing. */
1541 HOWTO (R_PPC_VLE_SDA21, /* type */
1543 2, /* size (0 = byte, 1 = short, 2 = long) */
1545 FALSE, /* pc_relative */
1547 complain_overflow_bitfield, /* complain_on_overflow */
1548 bfd_elf_generic_reloc, /* special_function */
1549 "R_PPC_VLE_SDA21", /* name */
1550 FALSE, /* partial_inplace */
1552 0xffff, /* dst_mask */
1553 FALSE), /* pcrel_offset */
1555 /* This reloc does nothing. */
1556 HOWTO (R_PPC_VLE_SDA21_LO, /* type */
1558 2, /* size (0 = byte, 1 = short, 2 = long) */
1560 FALSE, /* pc_relative */
1562 complain_overflow_bitfield, /* complain_on_overflow */
1563 bfd_elf_generic_reloc, /* special_function */
1564 "R_PPC_VLE_SDA21_LO", /* name */
1565 FALSE, /* partial_inplace */
1568 FALSE), /* pcrel_offset */
1570 /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */
1571 HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
1573 2, /* size (0 = byte, 1 = short, 2 = long) */
1575 FALSE, /* pc_relative */
1577 complain_overflow_bitfield, /* complain_on_overflow */
1578 bfd_elf_generic_reloc, /* special_function */
1579 "R_PPC_VLE_SDAREL_LO16A", /* name */
1580 FALSE, /* partial_inplace */
1582 0x1f007ff, /* dst_mask */
1583 FALSE), /* pcrel_offset */
1585 /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */
1586 /* This reloc does nothing. */
1587 HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
1589 2, /* size (0 = byte, 1 = short, 2 = long) */
1591 FALSE, /* pc_relative */
1593 complain_overflow_bitfield, /* complain_on_overflow */
1594 bfd_elf_generic_reloc, /* special_function */
1595 "R_PPC_VLE_SDAREL_LO16D", /* name */
1596 FALSE, /* partial_inplace */
1598 0x1f07ff, /* dst_mask */
1599 FALSE), /* pcrel_offset */
1601 /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */
1602 HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
1604 2, /* size (0 = byte, 1 = short, 2 = long) */
1606 FALSE, /* pc_relative */
1608 complain_overflow_bitfield, /* complain_on_overflow */
1609 bfd_elf_generic_reloc, /* special_function */
1610 "R_PPC_VLE_SDAREL_HI16A", /* name */
1611 FALSE, /* partial_inplace */
1613 0x1f007ff, /* dst_mask */
1614 FALSE), /* pcrel_offset */
1616 /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */
1617 HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
1619 2, /* size (0 = byte, 1 = short, 2 = long) */
1621 FALSE, /* pc_relative */
1623 complain_overflow_bitfield, /* complain_on_overflow */
1624 bfd_elf_generic_reloc, /* special_function */
1625 "R_PPC_VLE_SDAREL_HI16D", /* name */
1626 FALSE, /* partial_inplace */
1628 0x1f07ff, /* dst_mask */
1629 FALSE), /* pcrel_offset */
1631 /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */
1632 HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
1634 2, /* size (0 = byte, 1 = short, 2 = long) */
1636 FALSE, /* pc_relative */
1638 complain_overflow_bitfield, /* complain_on_overflow */
1639 bfd_elf_generic_reloc, /* special_function */
1640 "R_PPC_VLE_SDAREL_HA16A", /* name */
1641 FALSE, /* partial_inplace */
1643 0x1f007ff, /* dst_mask */
1644 FALSE), /* pcrel_offset */
1646 /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */
1647 HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
1649 2, /* size (0 = byte, 1 = short, 2 = long) */
1651 FALSE, /* pc_relative */
1653 complain_overflow_bitfield, /* complain_on_overflow */
1654 bfd_elf_generic_reloc, /* special_function */
1655 "R_PPC_VLE_SDAREL_HA16D", /* name */
1656 FALSE, /* partial_inplace */
1658 0x1f07ff, /* dst_mask */
1659 FALSE), /* pcrel_offset */
1661 HOWTO (R_PPC_IRELATIVE, /* type */
1663 2, /* size (0 = byte, 1 = short, 2 = long) */
1665 FALSE, /* pc_relative */
1667 complain_overflow_bitfield, /* complain_on_overflow */
1668 bfd_elf_generic_reloc, /* special_function */
1669 "R_PPC_IRELATIVE", /* name */
1670 FALSE, /* partial_inplace */
1672 0xffffffff, /* dst_mask */
1673 FALSE), /* pcrel_offset */
1675 /* A 16 bit relative relocation. */
1676 HOWTO (R_PPC_REL16, /* type */
1678 1, /* size (0 = byte, 1 = short, 2 = long) */
1680 TRUE, /* pc_relative */
1682 complain_overflow_bitfield, /* complain_on_overflow */
1683 bfd_elf_generic_reloc, /* special_function */
1684 "R_PPC_REL16", /* name */
1685 FALSE, /* partial_inplace */
1687 0xffff, /* dst_mask */
1688 TRUE), /* pcrel_offset */
1690 /* A 16 bit relative relocation without overflow. */
1691 HOWTO (R_PPC_REL16_LO, /* type */
1693 1, /* size (0 = byte, 1 = short, 2 = long) */
1695 TRUE, /* pc_relative */
1697 complain_overflow_dont,/* complain_on_overflow */
1698 bfd_elf_generic_reloc, /* special_function */
1699 "R_PPC_REL16_LO", /* name */
1700 FALSE, /* partial_inplace */
1702 0xffff, /* dst_mask */
1703 TRUE), /* pcrel_offset */
1705 /* The high order 16 bits of a relative address. */
1706 HOWTO (R_PPC_REL16_HI, /* type */
1707 16, /* rightshift */
1708 1, /* size (0 = byte, 1 = short, 2 = long) */
1710 TRUE, /* pc_relative */
1712 complain_overflow_dont, /* complain_on_overflow */
1713 bfd_elf_generic_reloc, /* special_function */
1714 "R_PPC_REL16_HI", /* name */
1715 FALSE, /* partial_inplace */
1717 0xffff, /* dst_mask */
1718 TRUE), /* pcrel_offset */
1720 /* The high order 16 bits of a relative address, plus 1 if the contents of
1721 the low 16 bits, treated as a signed number, is negative. */
1722 HOWTO (R_PPC_REL16_HA, /* type */
1723 16, /* rightshift */
1724 1, /* size (0 = byte, 1 = short, 2 = long) */
1726 TRUE, /* pc_relative */
1728 complain_overflow_dont, /* complain_on_overflow */
1729 ppc_elf_addr16_ha_reloc, /* special_function */
1730 "R_PPC_REL16_HA", /* name */
1731 FALSE, /* partial_inplace */
1733 0xffff, /* dst_mask */
1734 TRUE), /* pcrel_offset */
1736 /* GNU extension to record C++ vtable hierarchy. */
1737 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1739 0, /* size (0 = byte, 1 = short, 2 = long) */
1741 FALSE, /* pc_relative */
1743 complain_overflow_dont, /* complain_on_overflow */
1744 NULL, /* special_function */
1745 "R_PPC_GNU_VTINHERIT", /* name */
1746 FALSE, /* partial_inplace */
1749 FALSE), /* pcrel_offset */
1751 /* GNU extension to record C++ vtable member usage. */
1752 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1754 0, /* size (0 = byte, 1 = short, 2 = long) */
1756 FALSE, /* pc_relative */
1758 complain_overflow_dont, /* complain_on_overflow */
1759 NULL, /* special_function */
1760 "R_PPC_GNU_VTENTRY", /* name */
1761 FALSE, /* partial_inplace */
1764 FALSE), /* pcrel_offset */
1766 /* Phony reloc to handle AIX style TOC entries. */
1767 HOWTO (R_PPC_TOC16, /* type */
1769 1, /* size (0 = byte, 1 = short, 2 = long) */
1771 FALSE, /* pc_relative */
1773 complain_overflow_signed, /* complain_on_overflow */
1774 bfd_elf_generic_reloc, /* special_function */
1775 "R_PPC_TOC16", /* name */
1776 FALSE, /* partial_inplace */
1778 0xffff, /* dst_mask */
1779 FALSE), /* pcrel_offset */
1782 /* External 32-bit PPC structure for PRPSINFO. This structure is
1783 ABI-defined, thus we choose to use char arrays here in order to
1784 avoid dealing with different types in different architectures.
1786 The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
1787 most non-PPC architectures use `short int'.
1789 This structure will ultimately be written in the corefile's note
1790 section, as the PRPSINFO. */
1792 struct elf_external_ppc_linux_prpsinfo32
1794 char pr_state; /* Numeric process state. */
1795 char pr_sname; /* Char for pr_state. */
1796 char pr_zomb; /* Zombie. */
1797 char pr_nice; /* Nice val. */
1798 char pr_flag[4]; /* Flags. */
1805 char pr_fname[16]; /* Filename of executable. */
1806 char pr_psargs[80]; /* Initial part of arg list. */
1809 /* Helper macro to swap (properly handling endianess) things from the
1810 `elf_internal_prpsinfo' structure to the `elf_external_ppc_prpsinfo32'
1813 Note that FROM should be a pointer, and TO should be the explicit type. */
1815 #define PPC_LINUX_PRPSINFO32_SWAP_FIELDS(abfd, from, to) \
1818 H_PUT_8 (abfd, from->pr_state, &to.pr_state); \
1819 H_PUT_8 (abfd, from->pr_sname, &to.pr_sname); \
1820 H_PUT_8 (abfd, from->pr_zomb, &to.pr_zomb); \
1821 H_PUT_8 (abfd, from->pr_nice, &to.pr_nice); \
1822 H_PUT_32 (abfd, from->pr_flag, to.pr_flag); \
1823 H_PUT_32 (abfd, from->pr_uid, to.pr_uid); \
1824 H_PUT_32 (abfd, from->pr_gid, to.pr_gid); \
1825 H_PUT_32 (abfd, from->pr_pid, to.pr_pid); \
1826 H_PUT_32 (abfd, from->pr_ppid, to.pr_ppid); \
1827 H_PUT_32 (abfd, from->pr_pgrp, to.pr_pgrp); \
1828 H_PUT_32 (abfd, from->pr_sid, to.pr_sid); \
1829 strncpy (to.pr_fname, from->pr_fname, sizeof (to.pr_fname)); \
1830 strncpy (to.pr_psargs, from->pr_psargs, sizeof (to.pr_psargs)); \
1834 /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1837 ppc_elf_howto_init (void)
1839 unsigned int i, type;
1842 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1845 type = ppc_elf_howto_raw[i].type;
1846 if (type >= (sizeof (ppc_elf_howto_table)
1847 / sizeof (ppc_elf_howto_table[0])))
1849 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1853 static reloc_howto_type *
1854 ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1855 bfd_reloc_code_real_type code)
1857 enum elf_ppc_reloc_type r;
1859 /* Initialize howto table if not already done. */
1860 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1861 ppc_elf_howto_init ();
1868 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1869 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1870 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1871 case BFD_RELOC_PPC64_ADDR16_DS:
1872 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1873 case BFD_RELOC_PPC64_ADDR16_LO_DS:
1874 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1875 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1876 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1877 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1878 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1879 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1880 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1881 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1882 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1883 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1884 case BFD_RELOC_PPC64_GOT16_DS:
1885 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1886 case BFD_RELOC_PPC64_GOT16_LO_DS:
1887 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1888 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1889 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1890 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1891 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1892 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1893 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1894 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1895 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1896 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1897 case BFD_RELOC_PPC64_PLT16_LO_DS:
1898 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1899 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1900 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1901 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1902 case BFD_RELOC_PPC64_SECTOFF_DS:
1903 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1904 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
1905 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1906 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1907 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1908 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1909 case BFD_RELOC_PPC64_TOC16_DS:
1910 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1911 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
1912 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1913 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
1914 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1915 case BFD_RELOC_PPC64_TPREL16_DS:
1916 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1917 case BFD_RELOC_PPC64_TPREL16_LO_DS:
1918 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1919 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1920 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1921 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1922 case BFD_RELOC_PPC64_DTPREL16_DS:
1923 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1924 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
1925 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1926 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1927 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1928 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1929 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1930 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1931 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1932 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1933 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1934 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1935 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1936 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1937 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1938 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1939 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1940 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1941 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1942 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1943 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1944 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1945 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1946 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1947 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1948 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1949 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1950 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1951 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1952 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1953 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1954 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1955 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1956 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1957 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1958 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1959 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1960 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
1961 case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
1962 case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
1963 case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
1964 case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
1965 case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
1966 case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
1967 case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
1968 case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
1969 case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
1970 case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
1971 case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
1972 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
1973 r = R_PPC_VLE_SDAREL_LO16A;
1975 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
1976 r = R_PPC_VLE_SDAREL_LO16D;
1978 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
1979 r = R_PPC_VLE_SDAREL_HI16A;
1981 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
1982 r = R_PPC_VLE_SDAREL_HI16D;
1984 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
1985 r = R_PPC_VLE_SDAREL_HA16A;
1987 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
1988 r = R_PPC_VLE_SDAREL_HA16D;
1990 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
1991 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
1992 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
1993 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
1994 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
1995 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
1998 return ppc_elf_howto_table[r];
2001 static reloc_howto_type *
2002 ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2008 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
2010 if (ppc_elf_howto_raw[i].name != NULL
2011 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
2012 return &ppc_elf_howto_raw[i];
2017 /* Set the howto pointer for a PowerPC ELF reloc. */
2020 ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
2022 Elf_Internal_Rela *dst)
2024 /* Initialize howto table if not already done. */
2025 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2026 ppc_elf_howto_init ();
2028 BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
2029 cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
2031 /* Just because the above assert didn't trigger doesn't mean that
2032 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
2033 if (!cache_ptr->howto)
2035 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2036 abfd, ELF32_R_TYPE (dst->r_info));
2037 bfd_set_error (bfd_error_bad_value);
2039 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
2043 /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
2045 static bfd_reloc_status_type
2046 ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
2047 arelent *reloc_entry,
2049 void *data ATTRIBUTE_UNUSED,
2050 asection *input_section,
2052 char **error_message ATTRIBUTE_UNUSED)
2056 if (output_bfd != NULL)
2058 reloc_entry->address += input_section->output_offset;
2059 return bfd_reloc_ok;
2062 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
2063 return bfd_reloc_outofrange;
2065 if (bfd_is_com_section (symbol->section))
2068 relocation = symbol->value;
2070 relocation += symbol->section->output_section->vma;
2071 relocation += symbol->section->output_offset;
2072 relocation += reloc_entry->addend;
2073 if (reloc_entry->howto->pc_relative)
2074 relocation -= reloc_entry->address;
2076 reloc_entry->addend += (relocation & 0x8000) << 1;
2078 return bfd_reloc_continue;
2081 static bfd_reloc_status_type
2082 ppc_elf_unhandled_reloc (bfd *abfd,
2083 arelent *reloc_entry,
2086 asection *input_section,
2088 char **error_message)
2090 /* If this is a relocatable link (output_bfd test tells us), just
2091 call the generic function. Any adjustment will be done at final
2093 if (output_bfd != NULL)
2094 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2095 input_section, output_bfd, error_message);
2097 if (error_message != NULL)
2099 static char buf[60];
2100 sprintf (buf, _("generic linker can't handle %s"),
2101 reloc_entry->howto->name);
2102 *error_message = buf;
2104 return bfd_reloc_dangerous;
2107 /* Sections created by the linker. */
2109 typedef struct elf_linker_section
2111 /* Pointer to the bfd section. */
2115 /* Associated bss section name. */
2116 const char *bss_name;
2117 /* Associated symbol name. */
2118 const char *sym_name;
2119 /* Associated symbol. */
2120 struct elf_link_hash_entry *sym;
2121 } elf_linker_section_t;
2123 /* Linked list of allocated pointer entries. This hangs off of the
2124 symbol lists, and provides allows us to return different pointers,
2125 based on different addend's. */
2127 typedef struct elf_linker_section_pointers
2129 /* next allocated pointer for this symbol */
2130 struct elf_linker_section_pointers *next;
2131 /* offset of pointer from beginning of section */
2135 /* which linker section this is */
2136 elf_linker_section_t *lsect;
2137 } elf_linker_section_pointers_t;
2139 struct ppc_elf_obj_tdata
2141 struct elf_obj_tdata elf;
2143 /* A mapping from local symbols to offsets into the various linker
2144 sections added. This is index by the symbol index. */
2145 elf_linker_section_pointers_t **linker_section_pointers;
2147 /* Flags used to auto-detect plt type. */
2148 unsigned int makes_plt_call : 1;
2149 unsigned int has_rel16 : 1;
2152 #define ppc_elf_tdata(bfd) \
2153 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
2155 #define elf_local_ptr_offsets(bfd) \
2156 (ppc_elf_tdata (bfd)->linker_section_pointers)
2158 #define is_ppc_elf(bfd) \
2159 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2160 && elf_object_id (bfd) == PPC32_ELF_DATA)
2162 /* Override the generic function because we store some extras. */
2165 ppc_elf_mkobject (bfd *abfd)
2167 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
2171 /* Fix bad default arch selected for a 32 bit input bfd when the
2172 default is 64 bit. */
2175 ppc_elf_object_p (bfd *abfd)
2177 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
2179 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2181 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2183 /* Relies on arch after 64 bit default being 32 bit default. */
2184 abfd->arch_info = abfd->arch_info->next;
2185 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2191 /* Function to set whether a module needs the -mrelocatable bit set. */
2194 ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2196 BFD_ASSERT (!elf_flags_init (abfd)
2197 || elf_elfheader (abfd)->e_flags == flags);
2199 elf_elfheader (abfd)->e_flags = flags;
2200 elf_flags_init (abfd) = TRUE;
2204 /* Support for core dump NOTE sections. */
2207 ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2212 switch (note->descsz)
2217 case 268: /* Linux/PPC. */
2219 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
2222 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
2231 /* Make a ".reg/999" section. */
2232 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2233 size, note->descpos + offset);
2237 ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2239 switch (note->descsz)
2244 case 128: /* Linux/PPC elf_prpsinfo. */
2245 elf_tdata (abfd)->core->pid
2246 = bfd_get_32 (abfd, note->descdata + 16);
2247 elf_tdata (abfd)->core->program
2248 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
2249 elf_tdata (abfd)->core->command
2250 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2253 /* Note that for some reason, a spurious space is tacked
2254 onto the end of the args in some (at least one anyway)
2255 implementations, so strip it off if it exists. */
2258 char *command = elf_tdata (abfd)->core->command;
2259 int n = strlen (command);
2261 if (0 < n && command[n - 1] == ' ')
2262 command[n - 1] = '\0';
2269 elfcore_write_ppc_linux_prpsinfo32 (bfd *abfd, char *buf, int *bufsiz,
2270 const struct elf_internal_linux_prpsinfo *prpsinfo)
2272 struct elf_external_ppc_linux_prpsinfo32 data;
2274 memset (&data, 0, sizeof (data));
2275 PPC_LINUX_PRPSINFO32_SWAP_FIELDS (abfd, prpsinfo, data);
2277 return elfcore_write_note (abfd, buf, bufsiz,
2278 "CORE", NT_PRPSINFO, &data, sizeof (data));
2282 ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
2294 va_start (ap, note_type);
2295 memset (data, 0, sizeof (data));
2296 strncpy (data + 32, va_arg (ap, const char *), 16);
2297 strncpy (data + 48, va_arg (ap, const char *), 80);
2299 return elfcore_write_note (abfd, buf, bufsiz,
2300 "CORE", note_type, data, sizeof (data));
2311 va_start (ap, note_type);
2312 memset (data, 0, 72);
2313 pid = va_arg (ap, long);
2314 bfd_put_32 (abfd, pid, data + 24);
2315 cursig = va_arg (ap, int);
2316 bfd_put_16 (abfd, cursig, data + 12);
2317 greg = va_arg (ap, const void *);
2318 memcpy (data + 72, greg, 192);
2319 memset (data + 264, 0, 4);
2321 return elfcore_write_note (abfd, buf, bufsiz,
2322 "CORE", note_type, data, sizeof (data));
2328 ppc_elf_lookup_section_flags (char *flag_name)
2331 if (!strcmp (flag_name, "SHF_PPC_VLE"))
2337 /* Add the VLE flag if required. */
2340 ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr)
2342 if (bfd_get_mach (abfd) == bfd_mach_ppc_vle
2343 && (shdr->sh_flags & SHF_EXECINSTR) != 0)
2344 shdr->sh_flags |= SHF_PPC_VLE;
2349 /* Return address for Ith PLT stub in section PLT, for relocation REL
2350 or (bfd_vma) -1 if it should not be included. */
2353 ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
2354 const asection *plt ATTRIBUTE_UNUSED,
2357 return rel->address;
2360 /* Handle a PowerPC specific section when reading an object file. This
2361 is called when bfd_section_from_shdr finds a section with an unknown
2365 ppc_elf_section_from_shdr (bfd *abfd,
2366 Elf_Internal_Shdr *hdr,
2373 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
2376 newsect = hdr->bfd_section;
2377 flags = bfd_get_section_flags (abfd, newsect);
2378 if (hdr->sh_flags & SHF_EXCLUDE)
2379 flags |= SEC_EXCLUDE;
2381 if (hdr->sh_type == SHT_ORDERED)
2382 flags |= SEC_SORT_ENTRIES;
2384 bfd_set_section_flags (abfd, newsect, flags);
2388 /* Set up any other section flags and such that may be necessary. */
2391 ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2392 Elf_Internal_Shdr *shdr,
2395 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2396 shdr->sh_type = SHT_ORDERED;
2401 /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2402 need to bump up the number of section headers. */
2405 ppc_elf_additional_program_headers (bfd *abfd,
2406 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2411 s = bfd_get_section_by_name (abfd, ".sbss2");
2412 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2415 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2416 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2422 /* Modify the segment map for VLE executables. */
2425 ppc_elf_modify_segment_map (bfd *abfd,
2426 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2428 struct elf_segment_map *m, *n;
2431 bfd_boolean sect0_vle, sectj_vle;
2433 /* At this point in the link, output sections have already been sorted by
2434 LMA and assigned to segments. All that is left to do is to ensure
2435 there is no mixing of VLE & non-VLE sections in a text segment.
2436 If we find that case, we split the segment.
2437 We maintain the original output section order. */
2439 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
2444 sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0;
2445 for (j = 1; j < m->count; ++j)
2447 sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0;
2449 if (sectj_vle != sect0_vle)
2455 /* sections 0..j-1 stay in this (current) segment,
2456 the remainder are put in a new segment.
2457 The scan resumes with the new segment. */
2459 /* Fix the new segment. */
2460 amt = sizeof (struct elf_segment_map);
2461 amt += (m->count - j - 1) * sizeof (asection *);
2462 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2466 n->p_type = PT_LOAD;
2467 n->p_flags = PF_X | PF_R;
2469 n->p_flags |= PF_PPC_VLE;
2470 n->count = m->count - j;
2471 for (k = 0; k < n->count; ++k)
2473 n->sections[k] = m->sections[j+k];
2474 m->sections[j+k] = NULL;
2479 /* Fix the current segment */
2486 /* Add extra PPC sections -- Note, for now, make .sbss2 and
2487 .PPC.EMB.sbss0 a normal section, and not a bss section so
2488 that the linker doesn't crater when trying to make more than
2491 static const struct bfd_elf_special_section ppc_elf_special_sections[] =
2493 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2494 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2495 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2496 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2497 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2498 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2499 { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 },
2500 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2501 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2502 { NULL, 0, 0, 0, 0 }
2505 /* This is what we want for new plt/got. */
2506 static struct bfd_elf_special_section ppc_alt_plt =
2507 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
2509 static const struct bfd_elf_special_section *
2510 ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
2512 const struct bfd_elf_special_section *ssect;
2514 /* See if this is one of the special sections. */
2515 if (sec->name == NULL)
2518 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2522 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2523 ssect = &ppc_alt_plt;
2527 return _bfd_elf_get_sec_type_attr (abfd, sec);
2530 /* Very simple linked list structure for recording apuinfo values. */
2531 typedef struct apuinfo_list
2533 struct apuinfo_list *next;
2534 unsigned long value;
2538 static apuinfo_list *head;
2539 static bfd_boolean apuinfo_set;
2542 apuinfo_list_init (void)
2545 apuinfo_set = FALSE;
2549 apuinfo_list_add (unsigned long value)
2551 apuinfo_list *entry = head;
2553 while (entry != NULL)
2555 if (entry->value == value)
2557 entry = entry->next;
2560 entry = bfd_malloc (sizeof (* entry));
2564 entry->value = value;
2570 apuinfo_list_length (void)
2572 apuinfo_list *entry;
2573 unsigned long count;
2575 for (entry = head, count = 0;
2577 entry = entry->next)
2583 static inline unsigned long
2584 apuinfo_list_element (unsigned long number)
2586 apuinfo_list * entry;
2590 entry = entry->next)
2593 return entry ? entry->value : 0;
2597 apuinfo_list_finish (void)
2599 apuinfo_list *entry;
2601 for (entry = head; entry;)
2603 apuinfo_list *next = entry->next;
2611 #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2612 #define APUINFO_LABEL "APUinfo"
2614 /* Scan the input BFDs and create a linked list of
2615 the APUinfo values that will need to be emitted. */
2618 ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2622 char *buffer = NULL;
2623 bfd_size_type largest_input_size = 0;
2625 unsigned long length;
2626 const char *error_message = NULL;
2628 if (link_info == NULL)
2631 apuinfo_list_init ();
2633 /* Read in the input sections contents. */
2634 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
2636 unsigned long datum;
2638 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2642 error_message = _("corrupt %s section in %B");
2643 length = asec->size;
2648 if (largest_input_size < asec->size)
2652 largest_input_size = asec->size;
2653 buffer = bfd_malloc (largest_input_size);
2658 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
2659 || (bfd_bread (buffer, length, ibfd) != length))
2661 error_message = _("unable to read in %s section from %B");
2665 /* Verify the contents of the header. Note - we have to
2666 extract the values this way in order to allow for a
2667 host whose endian-ness is different from the target. */
2668 datum = bfd_get_32 (ibfd, buffer);
2669 if (datum != sizeof APUINFO_LABEL)
2672 datum = bfd_get_32 (ibfd, buffer + 8);
2676 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
2679 /* Get the number of bytes used for apuinfo entries. */
2680 datum = bfd_get_32 (ibfd, buffer + 4);
2681 if (datum + 20 != length)
2684 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2685 for (i = 0; i < datum; i += 4)
2686 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
2689 error_message = NULL;
2693 /* Compute the size of the output section. */
2694 unsigned num_entries = apuinfo_list_length ();
2696 /* Set the output section size, if it exists. */
2697 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2699 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2702 error_message = _("warning: unable to set size of %s section in %B");
2711 (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
2714 /* Prevent the output section from accumulating the input sections'
2715 contents. We have already stored this in our linked list structure. */
2718 ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
2719 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2721 bfd_byte *contents ATTRIBUTE_UNUSED)
2723 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
2726 /* Finally we can generate the output section. */
2729 ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
2734 unsigned num_entries;
2735 bfd_size_type length;
2737 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2744 length = asec->size;
2748 buffer = bfd_malloc (length);
2751 (*_bfd_error_handler)
2752 (_("failed to allocate space for new APUinfo section."));
2756 /* Create the apuinfo header. */
2757 num_entries = apuinfo_list_length ();
2758 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2759 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2760 bfd_put_32 (abfd, 0x2, buffer + 8);
2761 strcpy ((char *) buffer + 12, APUINFO_LABEL);
2764 for (i = 0; i < num_entries; i++)
2766 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2770 if (length != asec->size)
2771 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
2773 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2774 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
2778 apuinfo_list_finish ();
2782 is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
2784 bfd_byte buf[GLINK_ENTRY_SIZE];
2786 if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
2789 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2790 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2791 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2792 && bfd_get_32 (abfd, buf + 12) == BCTR);
2796 section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2798 bfd_vma vma = *(bfd_vma *) ptr;
2799 return ((section->flags & SEC_ALLOC) != 0
2800 && section->vma <= vma
2801 && vma < section->vma + section->size);
2805 ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2806 long dynsymcount, asymbol **dynsyms,
2809 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2810 asection *plt, *relplt, *dynamic, *glink;
2811 bfd_vma glink_vma = 0;
2812 bfd_vma resolv_vma = 0;
2823 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2826 if (dynsymcount <= 0)
2829 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2833 plt = bfd_get_section_by_name (abfd, ".plt");
2837 /* Call common code to handle old-style executable PLTs. */
2838 if (elf_section_flags (plt) & SHF_EXECINSTR)
2839 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2840 dynsymcount, dynsyms, ret);
2842 /* If this object was prelinked, the prelinker stored the address
2843 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2844 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2845 if (dynamic != NULL)
2847 bfd_byte *dynbuf, *extdyn, *extdynend;
2849 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2851 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2854 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2855 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2858 extdynend = extdyn + dynamic->size;
2859 for (; extdyn < extdynend; extdyn += extdynsize)
2861 Elf_Internal_Dyn dyn;
2862 (*swap_dyn_in) (abfd, extdyn, &dyn);
2864 if (dyn.d_tag == DT_NULL)
2867 if (dyn.d_tag == DT_PPC_GOT)
2869 unsigned int g_o_t = dyn.d_un.d_val;
2870 asection *got = bfd_get_section_by_name (abfd, ".got");
2872 && bfd_get_section_contents (abfd, got, buf,
2873 g_o_t - got->vma + 4, 4))
2874 glink_vma = bfd_get_32 (abfd, buf);
2881 /* Otherwise we read the first plt entry. */
2884 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
2885 glink_vma = bfd_get_32 (abfd, buf);
2891 /* The .glink section usually does not survive the final
2892 link; search for the section (usually .text) where the
2893 glink stubs now reside. */
2894 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
2898 /* Determine glink PLT resolver by reading the relative branch
2899 from the first glink stub. */
2900 if (bfd_get_section_contents (abfd, glink, buf,
2901 glink_vma - glink->vma, 4))
2903 unsigned int insn = bfd_get_32 (abfd, buf);
2905 /* The first glink stub may either branch to the resolver ... */
2907 if ((insn & ~0x3fffffc) == 0)
2908 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
2910 /* ... or fall through a bunch of NOPs. */
2911 else if ((insn ^ B ^ NOP) == 0)
2913 bfd_get_section_contents (abfd, glink, buf,
2914 glink_vma - glink->vma + i, 4);
2916 if (bfd_get_32 (abfd, buf) != NOP)
2918 resolv_vma = glink_vma + i;
2923 count = relplt->size / sizeof (Elf32_External_Rela);
2924 stub_vma = glink_vma - (bfd_vma) count * 16;
2925 /* If the stubs are those for -shared/-pie then we might have
2926 multiple stubs for each plt entry. If that is the case then
2927 there is no way to associate stubs with their plt entries short
2928 of figuring out the GOT pointer value used in the stub. */
2929 if (!is_nonpic_glink_stub (abfd, glink,
2930 glink_vma - GLINK_ENTRY_SIZE - glink->vma))
2933 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2934 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
2937 size = count * sizeof (asymbol);
2938 p = relplt->relocation;
2939 for (i = 0; i < count; i++, p++)
2941 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
2943 size += sizeof ("+0x") - 1 + 8;
2946 size += sizeof (asymbol) + sizeof ("__glink");
2949 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
2951 s = *ret = bfd_malloc (size);
2955 names = (char *) (s + count + 1 + (resolv_vma != 0));
2956 p = relplt->relocation;
2957 for (i = 0; i < count; i++, p++)
2961 *s = **p->sym_ptr_ptr;
2962 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
2963 we are defining a symbol, ensure one of them is set. */
2964 if ((s->flags & BSF_LOCAL) == 0)
2965 s->flags |= BSF_GLOBAL;
2966 s->flags |= BSF_SYNTHETIC;
2968 s->value = stub_vma - glink->vma;
2971 len = strlen ((*p->sym_ptr_ptr)->name);
2972 memcpy (names, (*p->sym_ptr_ptr)->name, len);
2976 memcpy (names, "+0x", sizeof ("+0x") - 1);
2977 names += sizeof ("+0x") - 1;
2978 bfd_sprintf_vma (abfd, names, p->addend);
2979 names += strlen (names);
2981 memcpy (names, "@plt", sizeof ("@plt"));
2982 names += sizeof ("@plt");
2987 /* Add a symbol at the start of the glink branch table. */
2988 memset (s, 0, sizeof *s);
2990 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
2992 s->value = glink_vma - glink->vma;
2994 memcpy (names, "__glink", sizeof ("__glink"));
2995 names += sizeof ("__glink");
3001 /* Add a symbol for the glink PLT resolver. */
3002 memset (s, 0, sizeof *s);
3004 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
3006 s->value = resolv_vma - glink->vma;
3008 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3009 names += sizeof ("__glink_PLTresolve");
3017 /* The following functions are specific to the ELF linker, while
3018 functions above are used generally. They appear in this file more
3019 or less in the order in which they are called. eg.
3020 ppc_elf_check_relocs is called early in the link process,
3021 ppc_elf_finish_dynamic_sections is one of the last functions
3024 /* Track PLT entries needed for a given symbol. We might need more
3025 than one glink entry per symbol when generating a pic binary. */
3028 struct plt_entry *next;
3030 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3031 This field stores the offset into .got2 used to initialise the
3032 GOT pointer reg. It will always be at least 32768. (Current
3033 gcc always uses an offset of 32768, but ld -r will pack .got2
3034 sections together resulting in larger offsets). */
3037 /* The .got2 section. */
3040 /* PLT refcount or offset. */
3043 bfd_signed_vma refcount;
3047 /* .glink stub offset. */
3048 bfd_vma glink_offset;
3051 /* Of those relocs that might be copied as dynamic relocs, this function
3052 selects those that must be copied when linking a shared library,
3053 even when the symbol is local. */
3056 must_be_dyn_reloc (struct bfd_link_info *info,
3057 enum elf_ppc_reloc_type r_type)
3066 case R_PPC_REL14_BRTAKEN:
3067 case R_PPC_REL14_BRNTAKEN:
3073 case R_PPC_TPREL16_LO:
3074 case R_PPC_TPREL16_HI:
3075 case R_PPC_TPREL16_HA:
3076 return !info->executable;
3080 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3081 copying dynamic variables from a shared lib into an app's dynbss
3082 section, and instead use a dynamic relocation to point into the
3084 #define ELIMINATE_COPY_RELOCS 1
3086 /* PPC ELF linker hash entry. */
3088 struct ppc_elf_link_hash_entry
3090 struct elf_link_hash_entry elf;
3092 /* If this symbol is used in the linker created sections, the processor
3093 specific backend uses this field to map the field into the offset
3094 from the beginning of the section. */
3095 elf_linker_section_pointers_t *linker_section_pointer;
3097 /* Track dynamic relocs copied for this symbol. */
3098 struct elf_dyn_relocs *dyn_relocs;
3100 /* Contexts in which symbol is used in the GOT (or TOC).
3101 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3102 corresponding relocs are encountered during check_relocs.
3103 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3104 indicate the corresponding GOT entry type is not needed. */
3105 #define TLS_GD 1 /* GD reloc. */
3106 #define TLS_LD 2 /* LD reloc. */
3107 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
3108 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3109 #define TLS_TLS 16 /* Any TLS reloc. */
3110 #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
3111 #define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
3114 /* Nonzero if we have seen a small data relocation referring to this
3116 unsigned char has_sda_refs;
3119 #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3121 /* PPC ELF linker hash table. */
3123 struct ppc_elf_link_hash_table
3125 struct elf_link_hash_table elf;
3127 /* Short-cuts to get to dynamic linker sections. */
3139 elf_linker_section_t sdata[2];
3141 asection *glink_eh_frame;
3143 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3146 /* The .got.plt section (VxWorks only)*/
3149 /* Shortcut to __tls_get_addr. */
3150 struct elf_link_hash_entry *tls_get_addr;
3152 /* The bfd that forced an old-style PLT. */
3155 /* TLS local dynamic got entry handling. */
3157 bfd_signed_vma refcount;
3161 /* Offset of branch table to PltResolve function in glink. */
3162 bfd_vma glink_pltresolve;
3164 /* Size of reserved GOT entries. */
3165 unsigned int got_header_size;
3166 /* Non-zero if allocating the header left a gap. */
3167 unsigned int got_gap;
3169 /* The type of PLT we have chosen to use. */
3170 enum ppc_elf_plt_type plt_type;
3172 /* Set if we should emit symbols for stubs. */
3173 unsigned int emit_stub_syms:1;
3175 /* Set if __tls_get_addr optimization should not be done. */
3176 unsigned int no_tls_get_addr_opt:1;
3178 /* True if the target system is VxWorks. */
3179 unsigned int is_vxworks:1;
3181 /* The size of PLT entries. */
3183 /* The distance between adjacent PLT slots. */
3185 /* The size of the first PLT entry. */
3186 int plt_initial_entry_size;
3188 /* Small local sym cache. */
3189 struct sym_cache sym_cache;
3192 /* Rename some of the generic section flags to better document how they
3193 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3195 /* Nonzero if this section has TLS related relocations. */
3196 #define has_tls_reloc sec_flg0
3198 /* Nonzero if this section has a call to __tls_get_addr. */
3199 #define has_tls_get_addr_call sec_flg1
3201 /* Get the PPC ELF linker hash table from a link_info structure. */
3203 #define ppc_elf_hash_table(p) \
3204 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3205 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
3207 /* Create an entry in a PPC ELF linker hash table. */
3209 static struct bfd_hash_entry *
3210 ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3211 struct bfd_hash_table *table,
3214 /* Allocate the structure if it has not already been allocated by a
3218 entry = bfd_hash_allocate (table,
3219 sizeof (struct ppc_elf_link_hash_entry));
3224 /* Call the allocation method of the superclass. */
3225 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3228 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3229 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3230 ppc_elf_hash_entry (entry)->tls_mask = 0;
3231 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
3237 /* Create a PPC ELF linker hash table. */
3239 static struct bfd_link_hash_table *
3240 ppc_elf_link_hash_table_create (bfd *abfd)
3242 struct ppc_elf_link_hash_table *ret;
3244 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3248 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3249 ppc_elf_link_hash_newfunc,
3250 sizeof (struct ppc_elf_link_hash_entry),
3257 ret->elf.init_plt_refcount.refcount = 0;
3258 ret->elf.init_plt_refcount.glist = NULL;
3259 ret->elf.init_plt_offset.offset = 0;
3260 ret->elf.init_plt_offset.glist = NULL;
3262 ret->sdata[0].name = ".sdata";
3263 ret->sdata[0].sym_name = "_SDA_BASE_";
3264 ret->sdata[0].bss_name = ".sbss";
3266 ret->sdata[1].name = ".sdata2";
3267 ret->sdata[1].sym_name = "_SDA2_BASE_";
3268 ret->sdata[1].bss_name = ".sbss2";
3270 ret->plt_entry_size = 12;
3271 ret->plt_slot_size = 8;
3272 ret->plt_initial_entry_size = 72;
3274 return &ret->elf.root;
3277 /* Create .got and the related sections. */
3280 ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3282 struct ppc_elf_link_hash_table *htab;
3286 if (!_bfd_elf_create_got_section (abfd, info))
3289 htab = ppc_elf_hash_table (info);
3290 htab->got = s = bfd_get_linker_section (abfd, ".got");
3294 if (htab->is_vxworks)
3296 htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt");
3302 /* The powerpc .got has a blrl instruction in it. Mark it
3304 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3305 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3306 if (!bfd_set_section_flags (abfd, s, flags))
3310 htab->relgot = bfd_get_linker_section (abfd, ".rela.got");
3318 ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3320 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3324 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3325 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3326 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3329 || !bfd_set_section_alignment (abfd, s, 4))
3332 if (!info->no_ld_generated_unwind_info)
3334 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3335 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3336 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3337 htab->glink_eh_frame = s;
3339 || !bfd_set_section_alignment (abfd, s, 2))
3343 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3344 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
3347 || !bfd_set_section_alignment (abfd, s, 4))
3350 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3351 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3352 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
3355 || ! bfd_set_section_alignment (abfd, s, 2))
3360 /* We have to create .dynsbss and .rela.sbss here so that they get mapped
3361 to output sections (just like _bfd_elf_create_dynamic_sections has
3362 to create .dynbss and .rela.bss). */
3365 ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3367 struct ppc_elf_link_hash_table *htab;
3371 htab = ppc_elf_hash_table (info);
3373 if (htab->got == NULL
3374 && !ppc_elf_create_got (abfd, info))
3377 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3380 if (htab->glink == NULL
3381 && !ppc_elf_create_glink (abfd, info))
3384 htab->dynbss = bfd_get_linker_section (abfd, ".dynbss");
3385 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3386 SEC_ALLOC | SEC_LINKER_CREATED);
3393 htab->relbss = bfd_get_linker_section (abfd, ".rela.bss");
3394 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3395 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3396 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3399 || ! bfd_set_section_alignment (abfd, s, 2))
3403 if (htab->is_vxworks
3404 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3407 htab->relplt = bfd_get_linker_section (abfd, ".rela.plt");
3408 htab->plt = s = bfd_get_linker_section (abfd, ".plt");
3412 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
3413 if (htab->plt_type == PLT_VXWORKS)
3414 /* The VxWorks PLT is a loaded section with contents. */
3415 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
3416 return bfd_set_section_flags (abfd, s, flags);
3419 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3422 ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
3423 struct elf_link_hash_entry *dir,
3424 struct elf_link_hash_entry *ind)
3426 struct ppc_elf_link_hash_entry *edir, *eind;
3428 edir = (struct ppc_elf_link_hash_entry *) dir;
3429 eind = (struct ppc_elf_link_hash_entry *) ind;
3431 edir->tls_mask |= eind->tls_mask;
3432 edir->has_sda_refs |= eind->has_sda_refs;
3434 /* If called to transfer flags for a weakdef during processing
3435 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3436 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3437 if (!(ELIMINATE_COPY_RELOCS
3438 && eind->elf.root.type != bfd_link_hash_indirect
3439 && edir->elf.dynamic_adjusted))
3440 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3442 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
3443 edir->elf.ref_regular |= eind->elf.ref_regular;
3444 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3445 edir->elf.needs_plt |= eind->elf.needs_plt;
3446 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3448 if (eind->dyn_relocs != NULL)
3450 if (edir->dyn_relocs != NULL)
3452 struct elf_dyn_relocs **pp;
3453 struct elf_dyn_relocs *p;
3455 /* Add reloc counts against the indirect sym to the direct sym
3456 list. Merge any entries against the same section. */
3457 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3459 struct elf_dyn_relocs *q;
3461 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3462 if (q->sec == p->sec)
3464 q->pc_count += p->pc_count;
3465 q->count += p->count;
3472 *pp = edir->dyn_relocs;
3475 edir->dyn_relocs = eind->dyn_relocs;
3476 eind->dyn_relocs = NULL;
3479 /* If we were called to copy over info for a weak sym, that's all.
3480 You might think dyn_relocs need not be copied over; After all,
3481 both syms will be dynamic or both non-dynamic so we're just
3482 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
3483 code in ppc_elf_adjust_dynamic_symbol needs to check for
3484 dyn_relocs in read-only sections, and it does so on what is the
3486 if (eind->elf.root.type != bfd_link_hash_indirect)
3489 /* Copy over the GOT refcount entries that we may have already seen to
3490 the symbol which just became indirect. */
3491 edir->elf.got.refcount += eind->elf.got.refcount;
3492 eind->elf.got.refcount = 0;
3494 /* And plt entries. */
3495 if (eind->elf.plt.plist != NULL)
3497 if (edir->elf.plt.plist != NULL)
3499 struct plt_entry **entp;
3500 struct plt_entry *ent;
3502 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3504 struct plt_entry *dent;
3506 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3507 if (dent->sec == ent->sec && dent->addend == ent->addend)
3509 dent->plt.refcount += ent->plt.refcount;
3516 *entp = edir->elf.plt.plist;
3519 edir->elf.plt.plist = eind->elf.plt.plist;
3520 eind->elf.plt.plist = NULL;
3523 if (eind->elf.dynindx != -1)
3525 if (edir->elf.dynindx != -1)
3526 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3527 edir->elf.dynstr_index);
3528 edir->elf.dynindx = eind->elf.dynindx;
3529 edir->elf.dynstr_index = eind->elf.dynstr_index;
3530 eind->elf.dynindx = -1;
3531 eind->elf.dynstr_index = 0;
3535 /* Hook called by the linker routine which adds symbols from an object
3536 file. We use it to put .comm items in .sbss, and not .bss. */
3539 ppc_elf_add_symbol_hook (bfd *abfd,
3540 struct bfd_link_info *info,
3541 Elf_Internal_Sym *sym,
3542 const char **namep ATTRIBUTE_UNUSED,
3543 flagword *flagsp ATTRIBUTE_UNUSED,
3547 if (sym->st_shndx == SHN_COMMON
3548 && !info->relocatable
3549 && is_ppc_elf (info->output_bfd)
3550 && sym->st_size <= elf_gp_size (abfd))
3552 /* Common symbols less than or equal to -G nn bytes are automatically
3554 struct ppc_elf_link_hash_table *htab;
3556 htab = ppc_elf_hash_table (info);
3557 if (htab->sbss == NULL)
3559 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3561 if (!htab->elf.dynobj)
3562 htab->elf.dynobj = abfd;
3564 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3567 if (htab->sbss == NULL)
3572 *valp = sym->st_size;
3575 if ((abfd->flags & DYNAMIC) == 0
3576 && (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
3577 || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE))
3578 elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
3584 create_sdata_sym (struct bfd_link_info *info, elf_linker_section_t *lsect)
3586 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3588 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
3590 if (lsect->sym == NULL)
3592 if (lsect->sym->root.type == bfd_link_hash_new)
3593 lsect->sym->non_elf = 0;
3594 lsect->sym->ref_regular = 1;
3595 _bfd_elf_link_hash_hide_symbol (info, lsect->sym, TRUE);
3599 /* Create a special linker section. */
3602 ppc_elf_create_linker_section (bfd *abfd,
3603 struct bfd_link_info *info,
3605 elf_linker_section_t *lsect)
3607 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3610 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3611 | SEC_LINKER_CREATED);
3613 /* Record the first bfd that needs the special sections. */
3614 if (!htab->elf.dynobj)
3615 htab->elf.dynobj = abfd;
3617 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3621 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
3625 return create_sdata_sym (info, lsect);
3628 /* Find a linker generated pointer with a given addend and type. */
3630 static elf_linker_section_pointers_t *
3631 elf_find_pointer_linker_section
3632 (elf_linker_section_pointers_t *linker_pointers,
3634 elf_linker_section_t *lsect)
3636 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3637 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3638 return linker_pointers;
3643 /* Allocate a pointer to live in a linker created section. */
3646 elf_create_pointer_linker_section (bfd *abfd,
3647 elf_linker_section_t *lsect,
3648 struct elf_link_hash_entry *h,
3649 const Elf_Internal_Rela *rel)
3651 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3652 elf_linker_section_pointers_t *linker_section_ptr;
3653 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3656 BFD_ASSERT (lsect != NULL);
3658 /* Is this a global symbol? */
3661 struct ppc_elf_link_hash_entry *eh;
3663 /* Has this symbol already been allocated? If so, our work is done. */
3664 eh = (struct ppc_elf_link_hash_entry *) h;
3665 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3670 ptr_linker_section_ptr = &eh->linker_section_pointer;
3674 BFD_ASSERT (is_ppc_elf (abfd));
3676 /* Allocation of a pointer to a local symbol. */
3677 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3679 /* Allocate a table to hold the local symbols if first time. */
3682 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
3685 amt *= sizeof (elf_linker_section_pointers_t *);
3686 ptr = bfd_zalloc (abfd, amt);
3691 elf_local_ptr_offsets (abfd) = ptr;
3694 /* Has this symbol already been allocated? If so, our work is done. */
3695 if (elf_find_pointer_linker_section (ptr[r_symndx],
3700 ptr_linker_section_ptr = &ptr[r_symndx];
3703 /* Allocate space for a pointer in the linker section, and allocate
3704 a new pointer record from internal memory. */
3705 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3706 amt = sizeof (elf_linker_section_pointers_t);
3707 linker_section_ptr = bfd_alloc (abfd, amt);
3709 if (!linker_section_ptr)
3712 linker_section_ptr->next = *ptr_linker_section_ptr;
3713 linker_section_ptr->addend = rel->r_addend;
3714 linker_section_ptr->lsect = lsect;
3715 *ptr_linker_section_ptr = linker_section_ptr;
3717 linker_section_ptr->offset = lsect->section->size;
3718 lsect->section->size += 4;
3722 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3723 lsect->name, (long) linker_section_ptr->offset,
3724 (long) lsect->section->size);
3730 static struct plt_entry **
3731 update_local_sym_info (bfd *abfd,
3732 Elf_Internal_Shdr *symtab_hdr,
3733 unsigned long r_symndx,
3736 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
3737 struct plt_entry **local_plt;
3738 char *local_got_tls_masks;
3740 if (local_got_refcounts == NULL)
3742 bfd_size_type size = symtab_hdr->sh_info;
3744 size *= (sizeof (*local_got_refcounts)
3745 + sizeof (*local_plt)
3746 + sizeof (*local_got_tls_masks));
3747 local_got_refcounts = bfd_zalloc (abfd, size);
3748 if (local_got_refcounts == NULL)
3750 elf_local_got_refcounts (abfd) = local_got_refcounts;
3753 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3754 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
3755 local_got_tls_masks[r_symndx] |= tls_type;
3756 if (tls_type != PLT_IFUNC)
3757 local_got_refcounts[r_symndx] += 1;
3758 return local_plt + r_symndx;
3762 update_plt_info (bfd *abfd, struct plt_entry **plist,
3763 asection *sec, bfd_vma addend)
3765 struct plt_entry *ent;
3769 for (ent = *plist; ent != NULL; ent = ent->next)
3770 if (ent->sec == sec && ent->addend == addend)
3774 bfd_size_type amt = sizeof (*ent);
3775 ent = bfd_alloc (abfd, amt);
3780 ent->addend = addend;
3781 ent->plt.refcount = 0;
3784 ent->plt.refcount += 1;
3788 static struct plt_entry *
3789 find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
3791 struct plt_entry *ent;
3795 for (ent = *plist; ent != NULL; ent = ent->next)
3796 if (ent->sec == sec && ent->addend == addend)
3802 is_branch_reloc (enum elf_ppc_reloc_type r_type)
3804 return (r_type == R_PPC_PLTREL24
3805 || r_type == R_PPC_LOCAL24PC
3806 || r_type == R_PPC_REL24
3807 || r_type == R_PPC_REL14
3808 || r_type == R_PPC_REL14_BRTAKEN
3809 || r_type == R_PPC_REL14_BRNTAKEN
3810 || r_type == R_PPC_ADDR24
3811 || r_type == R_PPC_ADDR14
3812 || r_type == R_PPC_ADDR14_BRTAKEN
3813 || r_type == R_PPC_ADDR14_BRNTAKEN);
3817 bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3819 (*_bfd_error_handler)
3820 (_("%B: relocation %s cannot be used when making a shared object"),
3822 ppc_elf_howto_table[r_type]->name);
3823 bfd_set_error (bfd_error_bad_value);
3826 /* Look through the relocs for a section during the first phase, and
3827 allocate space in the global offset table or procedure linkage
3831 ppc_elf_check_relocs (bfd *abfd,
3832 struct bfd_link_info *info,
3834 const Elf_Internal_Rela *relocs)
3836 struct ppc_elf_link_hash_table *htab;
3837 Elf_Internal_Shdr *symtab_hdr;
3838 struct elf_link_hash_entry **sym_hashes;
3839 const Elf_Internal_Rela *rel;
3840 const Elf_Internal_Rela *rel_end;
3841 asection *got2, *sreloc;
3842 struct elf_link_hash_entry *tga;
3844 if (info->relocatable)
3847 /* Don't do anything special with non-loaded, non-alloced sections.
3848 In particular, any relocs in such sections should not affect GOT
3849 and PLT reference counting (ie. we don't allow them to create GOT
3850 or PLT entries), there's no possibility or desire to optimize TLS
3851 relocs, and there's not much point in propagating relocs to shared
3852 libs that the dynamic linker won't relocate. */
3853 if ((sec->flags & SEC_ALLOC) == 0)
3857 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3861 BFD_ASSERT (is_ppc_elf (abfd));
3863 /* Initialize howto table if not already done. */
3864 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3865 ppc_elf_howto_init ();
3867 htab = ppc_elf_hash_table (info);
3868 if (htab->glink == NULL)
3870 if (htab->elf.dynobj == NULL)
3871 htab->elf.dynobj = abfd;
3872 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
3875 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
3876 FALSE, FALSE, TRUE);
3877 symtab_hdr = &elf_symtab_hdr (abfd);
3878 sym_hashes = elf_sym_hashes (abfd);
3879 got2 = bfd_get_section_by_name (abfd, ".got2");
3882 rel_end = relocs + sec->reloc_count;
3883 for (rel = relocs; rel < rel_end; rel++)
3885 unsigned long r_symndx;
3886 enum elf_ppc_reloc_type r_type;
3887 struct elf_link_hash_entry *h;
3890 r_symndx = ELF32_R_SYM (rel->r_info);
3891 if (r_symndx < symtab_hdr->sh_info)
3895 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3896 while (h->root.type == bfd_link_hash_indirect
3897 || h->root.type == bfd_link_hash_warning)
3898 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3901 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3902 This shows up in particular in an R_PPC_ADDR32 in the eabi
3905 && htab->got == NULL
3906 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3908 if (htab->elf.dynobj == NULL)
3909 htab->elf.dynobj = abfd;
3910 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3912 BFD_ASSERT (h == htab->elf.hgot);
3916 r_type = ELF32_R_TYPE (rel->r_info);
3917 if (h == NULL && !htab->is_vxworks)
3919 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3924 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
3926 || is_branch_reloc (r_type)))
3928 struct plt_entry **ifunc;
3931 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
3936 /* STT_GNU_IFUNC symbols must have a PLT entry;
3937 In a non-pie executable even when there are
3940 if (r_type == R_PPC_PLTREL24)
3942 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3944 addend = rel->r_addend;
3946 if (!update_plt_info (abfd, ifunc, got2, addend))
3951 if (!htab->is_vxworks
3952 && is_branch_reloc (r_type)
3957 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
3958 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
3959 /* We have a new-style __tls_get_addr call with a marker
3963 /* Mark this section as having an old-style call. */
3964 sec->has_tls_get_addr_call = 1;
3971 /* These special tls relocs tie a call to __tls_get_addr with
3972 its parameter symbol. */
3975 case R_PPC_GOT_TLSLD16:
3976 case R_PPC_GOT_TLSLD16_LO:
3977 case R_PPC_GOT_TLSLD16_HI:
3978 case R_PPC_GOT_TLSLD16_HA:
3979 tls_type = TLS_TLS | TLS_LD;
3982 case R_PPC_GOT_TLSGD16:
3983 case R_PPC_GOT_TLSGD16_LO:
3984 case R_PPC_GOT_TLSGD16_HI:
3985 case R_PPC_GOT_TLSGD16_HA:
3986 tls_type = TLS_TLS | TLS_GD;
3989 case R_PPC_GOT_TPREL16:
3990 case R_PPC_GOT_TPREL16_LO:
3991 case R_PPC_GOT_TPREL16_HI:
3992 case R_PPC_GOT_TPREL16_HA:
3993 if (!info->executable)
3994 info->flags |= DF_STATIC_TLS;
3995 tls_type = TLS_TLS | TLS_TPREL;
3998 case R_PPC_GOT_DTPREL16:
3999 case R_PPC_GOT_DTPREL16_LO:
4000 case R_PPC_GOT_DTPREL16_HI:
4001 case R_PPC_GOT_DTPREL16_HA:
4002 tls_type = TLS_TLS | TLS_DTPREL;
4004 sec->has_tls_reloc = 1;
4007 /* GOT16 relocations */
4009 case R_PPC_GOT16_LO:
4010 case R_PPC_GOT16_HI:
4011 case R_PPC_GOT16_HA:
4012 /* This symbol requires a global offset table entry. */
4013 if (htab->got == NULL)
4015 if (htab->elf.dynobj == NULL)
4016 htab->elf.dynobj = abfd;
4017 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4022 h->got.refcount += 1;
4023 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4026 /* This is a global offset table entry for a local symbol. */
4027 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4030 /* We may also need a plt entry if the symbol turns out to be
4032 if (h != NULL && !info->shared)
4034 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4039 /* Indirect .sdata relocation. */
4040 case R_PPC_EMB_SDAI16:
4043 bad_shared_reloc (abfd, r_type);
4046 if (htab->sdata[0].section == NULL
4047 && !ppc_elf_create_linker_section (abfd, info, 0,
4050 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
4055 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4056 h->non_got_ref = TRUE;
4060 /* Indirect .sdata2 relocation. */
4061 case R_PPC_EMB_SDA2I16:
4064 bad_shared_reloc (abfd, r_type);
4067 if (htab->sdata[1].section == NULL
4068 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
4071 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
4076 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4077 h->non_got_ref = TRUE;
4081 case R_PPC_VLE_SDAREL_LO16A:
4082 case R_PPC_VLE_SDAREL_LO16D:
4083 case R_PPC_VLE_SDAREL_HI16A:
4084 case R_PPC_VLE_SDAREL_HI16D:
4085 case R_PPC_VLE_SDAREL_HA16A:
4086 case R_PPC_VLE_SDAREL_HA16D:
4087 case R_PPC_SDAREL16:
4088 if (htab->sdata[0].sym == NULL
4089 && !create_sdata_sym (info, &htab->sdata[0]))
4092 if (htab->sdata[1].sym == NULL
4093 && !create_sdata_sym (info, &htab->sdata[1]))
4098 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4099 h->non_got_ref = TRUE;
4103 case R_PPC_VLE_REL8:
4104 case R_PPC_VLE_REL15:
4105 case R_PPC_VLE_REL24:
4106 case R_PPC_VLE_LO16A:
4107 case R_PPC_VLE_LO16D:
4108 case R_PPC_VLE_HI16A:
4109 case R_PPC_VLE_HI16D:
4110 case R_PPC_VLE_HA16A:
4111 case R_PPC_VLE_HA16D:
4114 case R_PPC_EMB_SDA2REL:
4117 bad_shared_reloc (abfd, r_type);
4120 if (htab->sdata[1].sym == NULL
4121 && !create_sdata_sym (info, &htab->sdata[1]))
4125 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4126 h->non_got_ref = TRUE;
4130 case R_PPC_VLE_SDA21_LO:
4131 case R_PPC_VLE_SDA21:
4132 case R_PPC_EMB_SDA21:
4133 case R_PPC_EMB_RELSDA:
4136 bad_shared_reloc (abfd, r_type);
4139 if (htab->sdata[0].sym == NULL
4140 && !create_sdata_sym (info, &htab->sdata[0]))
4142 if (htab->sdata[1].sym == NULL
4143 && !create_sdata_sym (info, &htab->sdata[1]))
4147 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4148 h->non_got_ref = TRUE;
4152 case R_PPC_EMB_NADDR32:
4153 case R_PPC_EMB_NADDR16:
4154 case R_PPC_EMB_NADDR16_LO:
4155 case R_PPC_EMB_NADDR16_HI:
4156 case R_PPC_EMB_NADDR16_HA:
4159 bad_shared_reloc (abfd, r_type);
4163 h->non_got_ref = TRUE;
4166 case R_PPC_PLTREL24:
4171 case R_PPC_PLTREL32:
4172 case R_PPC_PLT16_LO:
4173 case R_PPC_PLT16_HI:
4174 case R_PPC_PLT16_HA:
4176 fprintf (stderr, "Reloc requires a PLT entry\n");
4178 /* This symbol requires a procedure linkage table entry. We
4179 actually build the entry in finish_dynamic_symbol,
4180 because this might be a case of linking PIC code without
4181 linking in any dynamic objects, in which case we don't
4182 need to generate a procedure linkage table after all. */
4186 /* It does not make sense to have a procedure linkage
4187 table entry for a local symbol. */
4188 info->callbacks->einfo (_("%P: %H: %s reloc against local symbol\n"),
4189 abfd, sec, rel->r_offset,
4190 ppc_elf_howto_table[r_type]->name);
4191 bfd_set_error (bfd_error_bad_value);
4198 if (r_type == R_PPC_PLTREL24)
4200 ppc_elf_tdata (abfd)->makes_plt_call = 1;
4202 addend = rel->r_addend;
4205 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
4210 /* The following relocations don't need to propagate the
4211 relocation if linking a shared object since they are
4212 section relative. */
4214 case R_PPC_SECTOFF_LO:
4215 case R_PPC_SECTOFF_HI:
4216 case R_PPC_SECTOFF_HA:
4217 case R_PPC_DTPREL16:
4218 case R_PPC_DTPREL16_LO:
4219 case R_PPC_DTPREL16_HI:
4220 case R_PPC_DTPREL16_HA:
4225 case R_PPC_REL16_LO:
4226 case R_PPC_REL16_HI:
4227 case R_PPC_REL16_HA:
4228 ppc_elf_tdata (abfd)->has_rel16 = 1;
4231 /* These are just markers. */
4233 case R_PPC_EMB_MRKREF:
4237 case R_PPC_RELAX_PLT:
4238 case R_PPC_RELAX_PLTREL24:
4241 /* These should only appear in dynamic objects. */
4243 case R_PPC_GLOB_DAT:
4244 case R_PPC_JMP_SLOT:
4245 case R_PPC_RELATIVE:
4246 case R_PPC_IRELATIVE:
4249 /* These aren't handled yet. We'll report an error later. */
4251 case R_PPC_EMB_RELSEC16:
4252 case R_PPC_EMB_RELST_LO:
4253 case R_PPC_EMB_RELST_HI:
4254 case R_PPC_EMB_RELST_HA:
4255 case R_PPC_EMB_BIT_FLD:
4258 /* This refers only to functions defined in the shared library. */
4259 case R_PPC_LOCAL24PC:
4260 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
4262 htab->plt_type = PLT_OLD;
4263 htab->old_bfd = abfd;
4267 /* This relocation describes the C++ object vtable hierarchy.
4268 Reconstruct it for later use during GC. */
4269 case R_PPC_GNU_VTINHERIT:
4270 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4274 /* This relocation describes which C++ vtable entries are actually
4275 used. Record for later use during GC. */
4276 case R_PPC_GNU_VTENTRY:
4277 BFD_ASSERT (h != NULL);
4279 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4283 /* We shouldn't really be seeing these. */
4286 case R_PPC_TPREL16_LO:
4287 case R_PPC_TPREL16_HI:
4288 case R_PPC_TPREL16_HA:
4289 if (!info->executable)
4290 info->flags |= DF_STATIC_TLS;
4294 case R_PPC_DTPMOD32:
4295 case R_PPC_DTPREL32:
4301 && (sec->flags & SEC_CODE) != 0
4303 && htab->plt_type == PLT_UNSET)
4305 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4306 the start of a function, which assembles to a REL32
4307 reference to .got2. If we detect one of these, then
4308 force the old PLT layout because the linker cannot
4309 reliably deduce the GOT pointer value needed for
4312 Elf_Internal_Sym *isym;
4314 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4319 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4322 htab->plt_type = PLT_OLD;
4323 htab->old_bfd = abfd;
4326 if (h == NULL || h == htab->elf.hgot)
4332 case R_PPC_ADDR16_LO:
4333 case R_PPC_ADDR16_HI:
4334 case R_PPC_ADDR16_HA:
4337 if (h != NULL && !info->shared)
4339 /* We may need a plt entry if the symbol turns out to be
4340 a function defined in a dynamic object. */
4341 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4344 /* We may need a copy reloc too. */
4346 h->pointer_equality_needed = 1;
4352 case R_PPC_REL14_BRTAKEN:
4353 case R_PPC_REL14_BRNTAKEN:
4356 if (h == htab->elf.hgot)
4358 if (htab->plt_type == PLT_UNSET)
4360 htab->plt_type = PLT_OLD;
4361 htab->old_bfd = abfd;
4369 case R_PPC_ADDR14_BRTAKEN:
4370 case R_PPC_ADDR14_BRNTAKEN:
4371 if (h != NULL && !info->shared)
4373 /* We may need a plt entry if the symbol turns out to be
4374 a function defined in a dynamic object. */
4376 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4382 /* If we are creating a shared library, and this is a reloc
4383 against a global symbol, or a non PC relative reloc
4384 against a local symbol, then we need to copy the reloc
4385 into the shared library. However, if we are linking with
4386 -Bsymbolic, we do not need to copy a reloc against a
4387 global symbol which is defined in an object we are
4388 including in the link (i.e., DEF_REGULAR is set). At
4389 this point we have not seen all the input files, so it is
4390 possible that DEF_REGULAR is not set now but will be set
4391 later (it is never cleared). In case of a weak definition,
4392 DEF_REGULAR may be cleared later by a strong definition in
4393 a shared library. We account for that possibility below by
4394 storing information in the dyn_relocs field of the hash
4395 table entry. A similar situation occurs when creating
4396 shared libraries and symbol visibility changes render the
4399 If on the other hand, we are creating an executable, we
4400 may need to keep relocations for symbols satisfied by a
4401 dynamic library if we manage to avoid copy relocs for the
4404 && (must_be_dyn_reloc (info, r_type)
4406 && (! info->symbolic
4407 || h->root.type == bfd_link_hash_defweak
4408 || !h->def_regular))))
4409 || (ELIMINATE_COPY_RELOCS
4412 && (h->root.type == bfd_link_hash_defweak
4413 || !h->def_regular)))
4415 struct elf_dyn_relocs *p;
4416 struct elf_dyn_relocs **rel_head;
4420 "ppc_elf_check_relocs needs to "
4421 "create relocation for %s\n",
4422 (h && h->root.root.string
4423 ? h->root.root.string : "<unknown>"));
4427 if (htab->elf.dynobj == NULL)
4428 htab->elf.dynobj = abfd;
4430 sreloc = _bfd_elf_make_dynamic_reloc_section
4431 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4437 /* If this is a global symbol, we count the number of
4438 relocations we need for this symbol. */
4441 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
4445 /* Track dynamic relocs needed for local syms too.
4446 We really need local syms available to do this
4450 Elf_Internal_Sym *isym;
4452 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4457 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4461 vpp = &elf_section_data (s)->local_dynrel;
4462 rel_head = (struct elf_dyn_relocs **) vpp;
4466 if (p == NULL || p->sec != sec)
4468 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4471 p->next = *rel_head;
4479 if (!must_be_dyn_reloc (info, r_type))
4491 /* Merge object attributes from IBFD into OBFD. Raise an error if
4492 there are conflicting attributes. */
4494 ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
4496 obj_attribute *in_attr, *in_attrs;
4497 obj_attribute *out_attr, *out_attrs;
4499 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4501 /* This is the first object. Copy the attributes. */
4502 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4504 /* Use the Tag_null value to indicate the attributes have been
4506 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4511 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4512 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4514 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
4515 non-conflicting ones. */
4516 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4517 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
4518 if (in_attr->i != out_attr->i)
4521 if (out_attr->i == 0)
4522 out_attr->i = in_attr->i;
4523 else if (in_attr->i == 0)
4525 else if (out_attr->i == 1 && in_attr->i == 2)
4527 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
4528 else if (out_attr->i == 1 && in_attr->i == 3)
4530 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4532 else if (out_attr->i == 3 && in_attr->i == 1)
4534 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4536 else if (out_attr->i == 3 && in_attr->i == 2)
4538 (_("Warning: %B uses soft float, %B uses single-precision hard float"),
4540 else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3))
4542 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
4543 else if (in_attr->i > 3)
4545 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
4549 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
4553 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4554 merge non-conflicting ones. */
4555 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4556 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4557 if (in_attr->i != out_attr->i)
4559 const char *in_abi = NULL, *out_abi = NULL;
4563 case 1: in_abi = "generic"; break;
4564 case 2: in_abi = "AltiVec"; break;
4565 case 3: in_abi = "SPE"; break;
4568 switch (out_attr->i)
4570 case 1: out_abi = "generic"; break;
4571 case 2: out_abi = "AltiVec"; break;
4572 case 3: out_abi = "SPE"; break;
4576 if (out_attr->i == 0)
4577 out_attr->i = in_attr->i;
4578 else if (in_attr->i == 0)
4580 /* For now, allow generic to transition to AltiVec or SPE
4581 without a warning. If GCC marked files with their stack
4582 alignment and used don't-care markings for files which are
4583 not affected by the vector ABI, we could warn about this
4585 else if (out_attr->i == 1)
4586 out_attr->i = in_attr->i;
4587 else if (in_attr->i == 1)
4589 else if (in_abi == NULL)
4591 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
4593 else if (out_abi == NULL)
4595 (_("Warning: %B uses unknown vector ABI %d"), obfd,
4599 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
4600 ibfd, obfd, in_abi, out_abi);
4603 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4604 and merge non-conflicting ones. */
4605 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4606 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4607 if (in_attr->i != out_attr->i)
4610 if (out_attr->i == 0)
4611 out_attr->i = in_attr->i;
4612 else if (in_attr->i == 0)
4614 else if (out_attr->i == 1 && in_attr->i == 2)
4616 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd);
4617 else if (out_attr->i == 2 && in_attr->i == 1)
4619 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd);
4620 else if (in_attr->i > 2)
4622 (_("Warning: %B uses unknown small structure return convention %d"), ibfd,
4626 (_("Warning: %B uses unknown small structure return convention %d"), obfd,
4630 /* Merge Tag_compatibility attributes and any common GNU ones. */
4631 _bfd_elf_merge_object_attributes (ibfd, obfd);
4636 /* Merge backend specific data from an object file to the output
4637 object file when linking. */
4640 ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4646 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
4649 /* Check if we have the same endianness. */
4650 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
4653 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
4656 new_flags = elf_elfheader (ibfd)->e_flags;
4657 old_flags = elf_elfheader (obfd)->e_flags;
4658 if (!elf_flags_init (obfd))
4660 /* First call, no flags set. */
4661 elf_flags_init (obfd) = TRUE;
4662 elf_elfheader (obfd)->e_flags = new_flags;
4665 /* Compatible flags are ok. */
4666 else if (new_flags == old_flags)
4669 /* Incompatible flags. */
4672 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4673 to be linked with either. */
4675 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4676 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4679 (*_bfd_error_handler)
4680 (_("%B: compiled with -mrelocatable and linked with "
4681 "modules compiled normally"), ibfd);
4683 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4684 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4687 (*_bfd_error_handler)
4688 (_("%B: compiled normally and linked with "
4689 "modules compiled with -mrelocatable"), ibfd);
4692 /* The output is -mrelocatable-lib iff both the input files are. */
4693 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4694 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4696 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4697 but each input file is either -mrelocatable or -mrelocatable-lib. */
4698 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4699 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4700 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4701 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4703 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4704 any module uses it. */
4705 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4707 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4708 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4710 /* Warn about any other mismatches. */
4711 if (new_flags != old_flags)
4714 (*_bfd_error_handler)
4715 (_("%B: uses different e_flags (0x%lx) fields "
4716 "than previous modules (0x%lx)"),
4717 ibfd, (long) new_flags, (long) old_flags);
4722 bfd_set_error (bfd_error_bad_value);
4731 ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *contents,
4732 bfd_vma offset, bfd_vma relocation,
4733 split16_format_type split16_format)
4736 bfd_vma insn, top5, bottom11;
4738 insn = bfd_get_32 (output_bfd, contents + offset);
4739 top5 = relocation >> 11;
4740 top5 = top5 << (split16_format == split16a_type ? 20 : 16);
4741 bottom11 = relocation & 0x7ff;
4744 bfd_put_32 (output_bfd, insn, contents + offset);
4748 /* Choose which PLT scheme to use, and set .plt flags appropriately.
4749 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4751 ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
4752 struct bfd_link_info *info,
4753 enum ppc_elf_plt_type plt_style,
4756 struct ppc_elf_link_hash_table *htab;
4759 htab = ppc_elf_hash_table (info);
4761 htab->emit_stub_syms = emit_stub_syms;
4763 if (htab->plt_type == PLT_UNSET)
4765 struct elf_link_hash_entry *h;
4767 if (plt_style == PLT_OLD)
4768 htab->plt_type = PLT_OLD;
4769 else if (info->shared
4770 && htab->elf.dynamic_sections_created
4771 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
4772 FALSE, FALSE, TRUE)) != NULL
4773 && (h->type == STT_FUNC
4776 && !(SYMBOL_CALLS_LOCAL (info, h)
4777 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4778 && h->root.type == bfd_link_hash_undefweak)))
4780 /* Profiling of shared libs (and pies) is not supported with
4781 secure plt, because ppc32 does profiling before a
4782 function prologue and a secure plt pic call stubs needs
4783 r30 to be set up. */
4784 htab->plt_type = PLT_OLD;
4789 enum ppc_elf_plt_type plt_type = plt_style;
4791 /* Look through the reloc flags left by ppc_elf_check_relocs.
4792 Use the old style bss plt if a file makes plt calls
4793 without using the new relocs, and if ld isn't given
4794 --secure-plt and we never see REL16 relocs. */
4795 if (plt_type == PLT_UNSET)
4797 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
4798 if (is_ppc_elf (ibfd))
4800 if (ppc_elf_tdata (ibfd)->has_rel16)
4802 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
4805 htab->old_bfd = ibfd;
4809 htab->plt_type = plt_type;
4812 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
4814 if (htab->old_bfd != NULL)
4815 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
4818 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
4821 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
4823 if (htab->plt_type == PLT_NEW)
4825 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
4826 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4828 /* The new PLT is a loaded section. */
4829 if (htab->plt != NULL
4830 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
4833 /* The new GOT is not executable. */
4834 if (htab->got != NULL
4835 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
4840 /* Stop an unused .glink section from affecting .text alignment. */
4841 if (htab->glink != NULL
4842 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
4845 return htab->plt_type == PLT_NEW;
4848 /* Return the section that should be marked against GC for a given
4852 ppc_elf_gc_mark_hook (asection *sec,
4853 struct bfd_link_info *info,
4854 Elf_Internal_Rela *rel,
4855 struct elf_link_hash_entry *h,
4856 Elf_Internal_Sym *sym)
4859 switch (ELF32_R_TYPE (rel->r_info))
4861 case R_PPC_GNU_VTINHERIT:
4862 case R_PPC_GNU_VTENTRY:
4866 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4869 /* Update the got, plt and dynamic reloc reference counts for the
4870 section being removed. */
4873 ppc_elf_gc_sweep_hook (bfd *abfd,
4874 struct bfd_link_info *info,
4876 const Elf_Internal_Rela *relocs)
4878 struct ppc_elf_link_hash_table *htab;
4879 Elf_Internal_Shdr *symtab_hdr;
4880 struct elf_link_hash_entry **sym_hashes;
4881 bfd_signed_vma *local_got_refcounts;
4882 const Elf_Internal_Rela *rel, *relend;
4885 if (info->relocatable)
4888 if ((sec->flags & SEC_ALLOC) == 0)
4891 elf_section_data (sec)->local_dynrel = NULL;
4893 htab = ppc_elf_hash_table (info);
4894 symtab_hdr = &elf_symtab_hdr (abfd);
4895 sym_hashes = elf_sym_hashes (abfd);
4896 local_got_refcounts = elf_local_got_refcounts (abfd);
4897 got2 = bfd_get_section_by_name (abfd, ".got2");
4899 relend = relocs + sec->reloc_count;
4900 for (rel = relocs; rel < relend; rel++)
4902 unsigned long r_symndx;
4903 enum elf_ppc_reloc_type r_type;
4904 struct elf_link_hash_entry *h = NULL;
4906 r_symndx = ELF32_R_SYM (rel->r_info);
4907 if (r_symndx >= symtab_hdr->sh_info)
4909 struct elf_dyn_relocs **pp, *p;
4910 struct ppc_elf_link_hash_entry *eh;
4912 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4913 while (h->root.type == bfd_link_hash_indirect
4914 || h->root.type == bfd_link_hash_warning)
4915 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4916 eh = (struct ppc_elf_link_hash_entry *) h;
4918 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4921 /* Everything must go for SEC. */
4927 r_type = ELF32_R_TYPE (rel->r_info);
4928 if (!htab->is_vxworks
4930 && local_got_refcounts != NULL
4932 || is_branch_reloc (r_type)))
4934 struct plt_entry **local_plt = (struct plt_entry **)
4935 (local_got_refcounts + symtab_hdr->sh_info);
4936 char *local_got_tls_masks = (char *)
4937 (local_plt + symtab_hdr->sh_info);
4938 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
4940 struct plt_entry **ifunc = local_plt + r_symndx;
4942 struct plt_entry *ent;
4944 if (r_type == R_PPC_PLTREL24 && info->shared)
4945 addend = rel->r_addend;
4946 ent = find_plt_ent (ifunc, got2, addend);
4947 if (ent->plt.refcount > 0)
4948 ent->plt.refcount -= 1;
4955 case R_PPC_GOT_TLSLD16:
4956 case R_PPC_GOT_TLSLD16_LO:
4957 case R_PPC_GOT_TLSLD16_HI:
4958 case R_PPC_GOT_TLSLD16_HA:
4959 case R_PPC_GOT_TLSGD16:
4960 case R_PPC_GOT_TLSGD16_LO:
4961 case R_PPC_GOT_TLSGD16_HI:
4962 case R_PPC_GOT_TLSGD16_HA:
4963 case R_PPC_GOT_TPREL16:
4964 case R_PPC_GOT_TPREL16_LO:
4965 case R_PPC_GOT_TPREL16_HI:
4966 case R_PPC_GOT_TPREL16_HA:
4967 case R_PPC_GOT_DTPREL16:
4968 case R_PPC_GOT_DTPREL16_LO:
4969 case R_PPC_GOT_DTPREL16_HI:
4970 case R_PPC_GOT_DTPREL16_HA:
4972 case R_PPC_GOT16_LO:
4973 case R_PPC_GOT16_HI:
4974 case R_PPC_GOT16_HA:
4977 if (h->got.refcount > 0)
4981 struct plt_entry *ent;
4983 ent = find_plt_ent (&h->plt.plist, NULL, 0);
4984 if (ent != NULL && ent->plt.refcount > 0)
4985 ent->plt.refcount -= 1;
4988 else if (local_got_refcounts != NULL)
4990 if (local_got_refcounts[r_symndx] > 0)
4991 local_got_refcounts[r_symndx]--;
4997 case R_PPC_REL14_BRTAKEN:
4998 case R_PPC_REL14_BRNTAKEN:
5000 if (h == NULL || h == htab->elf.hgot)
5007 case R_PPC_ADDR16_LO:
5008 case R_PPC_ADDR16_HI:
5009 case R_PPC_ADDR16_HA:
5011 case R_PPC_ADDR14_BRTAKEN:
5012 case R_PPC_ADDR14_BRNTAKEN:
5019 case R_PPC_PLTREL24:
5020 case R_PPC_PLTREL32:
5021 case R_PPC_PLT16_LO:
5022 case R_PPC_PLT16_HI:
5023 case R_PPC_PLT16_HA:
5027 struct plt_entry *ent;
5029 if (r_type == R_PPC_PLTREL24 && info->shared)
5030 addend = rel->r_addend;
5031 ent = find_plt_ent (&h->plt.plist, got2, addend);
5032 if (ent != NULL && ent->plt.refcount > 0)
5033 ent->plt.refcount -= 1;
5044 /* Set plt output section type, htab->tls_get_addr, and call the
5045 generic ELF tls_setup function. */
5048 ppc_elf_tls_setup (bfd *obfd,
5049 struct bfd_link_info *info,
5050 int no_tls_get_addr_opt)
5052 struct ppc_elf_link_hash_table *htab;
5054 htab = ppc_elf_hash_table (info);
5055 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5056 FALSE, FALSE, TRUE);
5057 if (!no_tls_get_addr_opt)
5059 struct elf_link_hash_entry *opt, *tga;
5060 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5061 FALSE, FALSE, TRUE);
5063 && (opt->root.type == bfd_link_hash_defined
5064 || opt->root.type == bfd_link_hash_defweak))
5066 /* If glibc supports an optimized __tls_get_addr call stub,
5067 signalled by the presence of __tls_get_addr_opt, and we'll
5068 be calling __tls_get_addr via a plt call stub, then
5069 make __tls_get_addr point to __tls_get_addr_opt. */
5070 tga = htab->tls_get_addr;
5071 if (htab->elf.dynamic_sections_created
5073 && (tga->type == STT_FUNC
5075 && !(SYMBOL_CALLS_LOCAL (info, tga)
5076 || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
5077 && tga->root.type == bfd_link_hash_undefweak)))
5079 struct plt_entry *ent;
5080 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5081 if (ent->plt.refcount > 0)
5085 tga->root.type = bfd_link_hash_indirect;
5086 tga->root.u.i.link = &opt->root;
5087 ppc_elf_copy_indirect_symbol (info, opt, tga);
5088 if (opt->dynindx != -1)
5090 /* Use __tls_get_addr_opt in dynamic relocations. */
5092 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5094 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5097 htab->tls_get_addr = opt;
5102 no_tls_get_addr_opt = TRUE;
5104 htab->no_tls_get_addr_opt = no_tls_get_addr_opt;
5105 if (htab->plt_type == PLT_NEW
5106 && htab->plt != NULL
5107 && htab->plt->output_section != NULL)
5109 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
5110 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
5113 return _bfd_elf_tls_setup (obfd, info);
5116 /* Return TRUE iff REL is a branch reloc with a global symbol matching
5120 branch_reloc_hash_match (const bfd *ibfd,
5121 const Elf_Internal_Rela *rel,
5122 const struct elf_link_hash_entry *hash)
5124 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5125 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5126 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5128 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
5130 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5131 struct elf_link_hash_entry *h;
5133 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5134 while (h->root.type == bfd_link_hash_indirect
5135 || h->root.type == bfd_link_hash_warning)
5136 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5143 /* Run through all the TLS relocs looking for optimization
5147 ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5148 struct bfd_link_info *info)
5152 struct ppc_elf_link_hash_table *htab;
5155 if (info->relocatable || !info->executable)
5158 htab = ppc_elf_hash_table (info);
5162 /* Make two passes through the relocs. First time check that tls
5163 relocs involved in setting up a tls_get_addr call are indeed
5164 followed by such a call. If they are not, don't do any tls
5165 optimization. On the second pass twiddle tls_mask flags to
5166 notify relocate_section that optimization can be done, and
5167 adjust got and plt refcounts. */
5168 for (pass = 0; pass < 2; ++pass)
5169 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5171 Elf_Internal_Sym *locsyms = NULL;
5172 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5173 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
5175 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5176 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5178 Elf_Internal_Rela *relstart, *rel, *relend;
5179 int expecting_tls_get_addr = 0;
5181 /* Read the relocations. */
5182 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5184 if (relstart == NULL)
5187 relend = relstart + sec->reloc_count;
5188 for (rel = relstart; rel < relend; rel++)
5190 enum elf_ppc_reloc_type r_type;
5191 unsigned long r_symndx;
5192 struct elf_link_hash_entry *h = NULL;
5194 char tls_set, tls_clear;
5195 bfd_boolean is_local;
5196 bfd_signed_vma *got_count;
5198 r_symndx = ELF32_R_SYM (rel->r_info);
5199 if (r_symndx >= symtab_hdr->sh_info)
5201 struct elf_link_hash_entry **sym_hashes;
5203 sym_hashes = elf_sym_hashes (ibfd);
5204 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5205 while (h->root.type == bfd_link_hash_indirect
5206 || h->root.type == bfd_link_hash_warning)
5207 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5215 r_type = ELF32_R_TYPE (rel->r_info);
5216 /* If this section has old-style __tls_get_addr calls
5217 without marker relocs, then check that each
5218 __tls_get_addr call reloc is preceded by a reloc
5219 that conceivably belongs to the __tls_get_addr arg
5220 setup insn. If we don't find matching arg setup
5221 relocs, don't do any tls optimization. */
5223 && sec->has_tls_get_addr_call
5225 && h == htab->tls_get_addr
5226 && !expecting_tls_get_addr
5227 && is_branch_reloc (r_type))
5229 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
5230 "TLS optimization disabled\n",
5231 ibfd, sec, rel->r_offset);
5232 if (elf_section_data (sec)->relocs != relstart)
5237 expecting_tls_get_addr = 0;
5240 case R_PPC_GOT_TLSLD16:
5241 case R_PPC_GOT_TLSLD16_LO:
5242 expecting_tls_get_addr = 1;
5245 case R_PPC_GOT_TLSLD16_HI:
5246 case R_PPC_GOT_TLSLD16_HA:
5247 /* These relocs should never be against a symbol
5248 defined in a shared lib. Leave them alone if
5249 that turns out to be the case. */
5258 case R_PPC_GOT_TLSGD16:
5259 case R_PPC_GOT_TLSGD16_LO:
5260 expecting_tls_get_addr = 1;
5263 case R_PPC_GOT_TLSGD16_HI:
5264 case R_PPC_GOT_TLSGD16_HA:
5270 tls_set = TLS_TLS | TLS_TPRELGD;
5274 case R_PPC_GOT_TPREL16:
5275 case R_PPC_GOT_TPREL16_LO:
5276 case R_PPC_GOT_TPREL16_HI:
5277 case R_PPC_GOT_TPREL16_HA:
5282 tls_clear = TLS_TPREL;
5290 expecting_tls_get_addr = 2;
5301 if (!expecting_tls_get_addr
5302 || (expecting_tls_get_addr == 1
5303 && !sec->has_tls_get_addr_call))
5306 if (rel + 1 < relend
5307 && branch_reloc_hash_match (ibfd, rel + 1,
5308 htab->tls_get_addr))
5311 /* Uh oh, we didn't find the expected call. We
5312 could just mark this symbol to exclude it
5313 from tls optimization but it's safer to skip
5314 the entire optimization. */
5315 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
5316 "TLS optimization disabled\n"),
5317 ibfd, sec, rel->r_offset);
5318 if (elf_section_data (sec)->relocs != relstart)
5323 if (expecting_tls_get_addr)
5325 struct plt_entry *ent;
5329 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5330 addend = rel[1].r_addend;
5331 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5333 if (ent != NULL && ent->plt.refcount > 0)
5334 ent->plt.refcount -= 1;
5336 if (expecting_tls_get_addr == 2)
5342 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5343 got_count = &h->got.refcount;
5347 bfd_signed_vma *lgot_refs;
5348 struct plt_entry **local_plt;
5351 if (locsyms == NULL)
5353 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5354 if (locsyms == NULL)
5355 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5356 symtab_hdr->sh_info,
5357 0, NULL, NULL, NULL);
5358 if (locsyms == NULL)
5360 if (elf_section_data (sec)->relocs != relstart)
5365 lgot_refs = elf_local_got_refcounts (ibfd);
5366 if (lgot_refs == NULL)
5368 local_plt = (struct plt_entry **)
5369 (lgot_refs + symtab_hdr->sh_info);
5370 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
5371 tls_mask = &lgot_masks[r_symndx];
5372 got_count = &lgot_refs[r_symndx];
5377 /* We managed to get rid of a got entry. */
5382 *tls_mask |= tls_set;
5383 *tls_mask &= ~tls_clear;
5386 if (elf_section_data (sec)->relocs != relstart)
5391 && (symtab_hdr->contents != (unsigned char *) locsyms))
5393 if (!info->keep_memory)
5396 symtab_hdr->contents = (unsigned char *) locsyms;
5402 /* Return true if we have dynamic relocs that apply to read-only sections. */
5405 readonly_dynrelocs (struct elf_link_hash_entry *h)
5407 struct elf_dyn_relocs *p;
5409 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5411 asection *s = p->sec->output_section;
5414 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5415 == (SEC_READONLY | SEC_ALLOC)))
5421 /* Adjust a symbol defined by a dynamic object and referenced by a
5422 regular object. The current definition is in some section of the
5423 dynamic object, but we're not including those sections. We have to
5424 change the definition to something the rest of the link can
5428 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5429 struct elf_link_hash_entry *h)
5431 struct ppc_elf_link_hash_table *htab;
5435 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5436 h->root.root.string);
5439 /* Make sure we know what is going on here. */
5440 htab = ppc_elf_hash_table (info);
5441 BFD_ASSERT (htab->elf.dynobj != NULL
5443 || h->type == STT_GNU_IFUNC
5444 || h->u.weakdef != NULL
5447 && !h->def_regular)));
5449 /* Deal with function syms. */
5450 if (h->type == STT_FUNC
5451 || h->type == STT_GNU_IFUNC
5454 /* Clear procedure linkage table information for any symbol that
5455 won't need a .plt entry. */
5456 struct plt_entry *ent;
5457 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5458 if (ent->plt.refcount > 0)
5461 || (h->type != STT_GNU_IFUNC
5462 && (SYMBOL_CALLS_LOCAL (info, h)
5463 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5464 && h->root.type == bfd_link_hash_undefweak))))
5466 /* A PLT entry is not required/allowed when:
5468 1. We are not using ld.so; because then the PLT entry
5469 can't be set up, so we can't use one. In this case,
5470 ppc_elf_adjust_dynamic_symbol won't even be called.
5472 2. GC has rendered the entry unused.
5474 3. We know for certain that a call to this symbol
5475 will go to this object, or will remain undefined. */
5476 h->plt.plist = NULL;
5481 /* After adjust_dynamic_symbol, non_got_ref set in the
5482 non-shared case means that we have allocated space in
5483 .dynbss for the symbol and thus dyn_relocs for this
5484 symbol should be discarded.
5485 If we get here we know we are making a PLT entry for this
5486 symbol, and in an executable we'd normally resolve
5487 relocations against this symbol to the PLT entry. Allow
5488 dynamic relocs if the reference is weak, and the dynamic
5489 relocs will not cause text relocation. */
5490 if (!h->ref_regular_nonweak
5492 && h->type != STT_GNU_IFUNC
5493 && !htab->is_vxworks
5494 && !ppc_elf_hash_entry (h)->has_sda_refs
5495 && !readonly_dynrelocs (h))
5501 h->plt.plist = NULL;
5503 /* If this is a weak symbol, and there is a real definition, the
5504 processor independent code will have arranged for us to see the
5505 real definition first, and we can just use the same value. */
5506 if (h->u.weakdef != NULL)
5508 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5509 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5510 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5511 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5512 if (ELIMINATE_COPY_RELOCS)
5513 h->non_got_ref = h->u.weakdef->non_got_ref;
5517 /* This is a reference to a symbol defined by a dynamic object which
5518 is not a function. */
5520 /* If we are creating a shared library, we must presume that the
5521 only references to the symbol are via the global offset table.
5522 For such cases we need not do anything here; the relocations will
5523 be handled correctly by relocate_section. */
5527 /* If there are no references to this symbol that do not use the
5528 GOT, we don't need to generate a copy reloc. */
5529 if (!h->non_got_ref)
5532 /* If we didn't find any dynamic relocs in read-only sections, then
5533 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5534 We can't do this if there are any small data relocations. This
5535 doesn't work on VxWorks, where we can not have dynamic
5536 relocations (other than copy and jump slot relocations) in an
5538 if (ELIMINATE_COPY_RELOCS
5539 && !ppc_elf_hash_entry (h)->has_sda_refs
5540 && !htab->is_vxworks
5542 && !readonly_dynrelocs (h))
5548 /* We must allocate the symbol in our .dynbss section, which will
5549 become part of the .bss section of the executable. There will be
5550 an entry for this symbol in the .dynsym section. The dynamic
5551 object will contain position independent code, so all references
5552 from the dynamic object to this symbol will go through the global
5553 offset table. The dynamic linker will use the .dynsym entry to
5554 determine the address it must put in the global offset table, so
5555 both the dynamic object and the regular object will refer to the
5556 same memory location for the variable.
5558 Of course, if the symbol is referenced using SDAREL relocs, we
5559 must instead allocate it in .sbss. */
5561 if (ppc_elf_hash_entry (h)->has_sda_refs)
5565 BFD_ASSERT (s != NULL);
5567 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5568 copy the initial value out of the dynamic object and into the
5569 runtime process image. We need to remember the offset into the
5570 .rela.bss section we are going to use. */
5571 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
5575 if (ppc_elf_hash_entry (h)->has_sda_refs)
5576 srel = htab->relsbss;
5578 srel = htab->relbss;
5579 BFD_ASSERT (srel != NULL);
5580 srel->size += sizeof (Elf32_External_Rela);
5584 return _bfd_elf_adjust_dynamic_copy (h, s);
5587 /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5588 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5589 specifying the addend on the plt relocation. For -fpic code, the sym
5590 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5591 xxxxxxxx.got2.plt_pic32.<callee>. */
5594 add_stub_sym (struct plt_entry *ent,
5595 struct elf_link_hash_entry *h,
5596 struct bfd_link_info *info)
5598 struct elf_link_hash_entry *sh;
5599 size_t len1, len2, len3;
5602 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5605 stub = ".plt_pic32.";
5607 stub = ".plt_call32.";
5609 len1 = strlen (h->root.root.string);
5610 len2 = strlen (stub);
5613 len3 = strlen (ent->sec->name);
5614 name = bfd_malloc (len1 + len2 + len3 + 9);
5617 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5619 memcpy (name + 8, ent->sec->name, len3);
5620 memcpy (name + 8 + len3, stub, len2);
5621 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
5622 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5625 if (sh->root.type == bfd_link_hash_new)
5627 sh->root.type = bfd_link_hash_defined;
5628 sh->root.u.def.section = htab->glink;
5629 sh->root.u.def.value = ent->glink_offset;
5630 sh->ref_regular = 1;
5631 sh->def_regular = 1;
5632 sh->ref_regular_nonweak = 1;
5633 sh->forced_local = 1;
5639 /* Allocate NEED contiguous space in .got, and return the offset.
5640 Handles allocation of the got header when crossing 32k. */
5643 allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5646 unsigned int max_before_header;
5648 if (htab->plt_type == PLT_VXWORKS)
5650 where = htab->got->size;
5651 htab->got->size += need;
5655 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5656 if (need <= htab->got_gap)
5658 where = max_before_header - htab->got_gap;
5659 htab->got_gap -= need;
5663 if (htab->got->size + need > max_before_header
5664 && htab->got->size <= max_before_header)
5666 htab->got_gap = max_before_header - htab->got->size;
5667 htab->got->size = max_before_header + htab->got_header_size;
5669 where = htab->got->size;
5670 htab->got->size += need;
5676 /* Allocate space in associated reloc sections for dynamic relocs. */
5679 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5681 struct bfd_link_info *info = inf;
5682 struct ppc_elf_link_hash_entry *eh;
5683 struct ppc_elf_link_hash_table *htab;
5684 struct elf_dyn_relocs *p;
5686 if (h->root.type == bfd_link_hash_indirect)
5689 htab = ppc_elf_hash_table (info);
5690 if (htab->elf.dynamic_sections_created
5691 || h->type == STT_GNU_IFUNC)
5693 struct plt_entry *ent;
5694 bfd_boolean doneone = FALSE;
5695 bfd_vma plt_offset = 0, glink_offset = 0;
5698 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5699 if (ent->plt.refcount > 0)
5701 /* Make sure this symbol is output as a dynamic symbol. */
5702 if (h->dynindx == -1
5705 && htab->elf.dynamic_sections_created)
5707 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5711 dyn = htab->elf.dynamic_sections_created;
5713 || h->type == STT_GNU_IFUNC
5714 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5716 asection *s = htab->plt;
5717 if (!dyn || h->dynindx == -1)
5720 if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
5724 plt_offset = s->size;
5727 ent->plt.offset = plt_offset;
5730 if (!doneone || info->shared)
5732 glink_offset = s->size;
5733 s->size += GLINK_ENTRY_SIZE;
5734 if (h == htab->tls_get_addr
5735 && !htab->no_tls_get_addr_opt)
5736 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
5743 h->root.u.def.section = s;
5744 h->root.u.def.value = glink_offset;
5746 ent->glink_offset = glink_offset;
5748 if (htab->emit_stub_syms
5749 && !add_stub_sym (ent, h, info))
5756 /* If this is the first .plt entry, make room
5757 for the special first entry. */
5759 s->size += htab->plt_initial_entry_size;
5761 /* The PowerPC PLT is actually composed of two
5762 parts, the first part is 2 words (for a load
5763 and a jump), and then there is a remaining
5764 word available at the end. */
5765 plt_offset = (htab->plt_initial_entry_size
5766 + (htab->plt_slot_size
5768 - htab->plt_initial_entry_size)
5769 / htab->plt_entry_size)));
5771 /* If this symbol is not defined in a regular
5772 file, and we are not generating a shared
5773 library, then set the symbol to this location
5774 in the .plt. This is to avoid text
5775 relocations, and is required to make
5776 function pointers compare as equal between
5777 the normal executable and the shared library. */
5782 h->root.u.def.section = s;
5783 h->root.u.def.value = plt_offset;
5786 /* Make room for this entry. */
5787 s->size += htab->plt_entry_size;
5788 /* After the 8192nd entry, room for two entries
5790 if (htab->plt_type == PLT_OLD
5791 && (s->size - htab->plt_initial_entry_size)
5792 / htab->plt_entry_size
5793 > PLT_NUM_SINGLE_ENTRIES)
5794 s->size += htab->plt_entry_size;
5796 ent->plt.offset = plt_offset;
5799 /* We also need to make an entry in the .rela.plt section. */
5802 if (!htab->elf.dynamic_sections_created
5803 || h->dynindx == -1)
5804 htab->reliplt->size += sizeof (Elf32_External_Rela);
5807 htab->relplt->size += sizeof (Elf32_External_Rela);
5809 if (htab->plt_type == PLT_VXWORKS)
5811 /* Allocate space for the unloaded relocations. */
5813 && htab->elf.dynamic_sections_created)
5816 == (bfd_vma) htab->plt_initial_entry_size)
5818 htab->srelplt2->size
5819 += (sizeof (Elf32_External_Rela)
5820 * VXWORKS_PLTRESOLVE_RELOCS);
5823 htab->srelplt2->size
5824 += (sizeof (Elf32_External_Rela)
5825 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
5828 /* Every PLT entry has an associated GOT entry in
5830 htab->sgotplt->size += 4;
5837 ent->plt.offset = (bfd_vma) -1;
5840 ent->plt.offset = (bfd_vma) -1;
5844 h->plt.plist = NULL;
5850 h->plt.plist = NULL;
5854 eh = (struct ppc_elf_link_hash_entry *) h;
5855 if (eh->elf.got.refcount > 0)
5860 /* Make sure this symbol is output as a dynamic symbol. */
5861 if (eh->elf.dynindx == -1
5862 && !eh->elf.forced_local
5863 && eh->elf.type != STT_GNU_IFUNC
5864 && htab->elf.dynamic_sections_created)
5866 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
5871 if ((eh->tls_mask & TLS_TLS) != 0)
5873 if ((eh->tls_mask & TLS_LD) != 0)
5875 if (!eh->elf.def_dynamic)
5876 /* We'll just use htab->tlsld_got.offset. This should
5877 always be the case. It's a little odd if we have
5878 a local dynamic reloc against a non-local symbol. */
5879 htab->tlsld_got.refcount += 1;
5883 if ((eh->tls_mask & TLS_GD) != 0)
5885 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
5887 if ((eh->tls_mask & TLS_DTPREL) != 0)
5893 eh->elf.got.offset = (bfd_vma) -1;
5896 eh->elf.got.offset = allocate_got (htab, need);
5897 dyn = htab->elf.dynamic_sections_created;
5899 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
5900 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
5901 || eh->elf.root.type != bfd_link_hash_undefweak))
5903 asection *rsec = htab->relgot;
5904 /* All the entries we allocated need relocs.
5905 Except LD only needs one. */
5906 if ((eh->tls_mask & TLS_LD) != 0
5907 && eh->elf.def_dynamic)
5909 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
5914 eh->elf.got.offset = (bfd_vma) -1;
5916 if (eh->dyn_relocs == NULL
5917 || !htab->elf.dynamic_sections_created)
5920 /* In the shared -Bsymbolic case, discard space allocated for
5921 dynamic pc-relative relocs against symbols which turn out to be
5922 defined in regular objects. For the normal shared case, discard
5923 space for relocs that have become local due to symbol visibility
5928 /* Relocs that use pc_count are those that appear on a call insn,
5929 or certain REL relocs (see must_be_dyn_reloc) that can be
5930 generated via assembly. We want calls to protected symbols to
5931 resolve directly to the function rather than going via the plt.
5932 If people want function pointer comparisons to work as expected
5933 then they should avoid writing weird assembly. */
5934 if (SYMBOL_CALLS_LOCAL (info, h))
5936 struct elf_dyn_relocs **pp;
5938 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5940 p->count -= p->pc_count;
5949 if (htab->is_vxworks)
5951 struct elf_dyn_relocs **pp;
5953 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5955 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
5962 /* Discard relocs on undefined symbols that must be local. */
5963 if (eh->dyn_relocs != NULL
5964 && h->root.type == bfd_link_hash_undefined
5965 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
5966 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
5967 eh->dyn_relocs = NULL;
5969 /* Also discard relocs on undefined weak syms with non-default
5971 if (eh->dyn_relocs != NULL
5972 && h->root.type == bfd_link_hash_undefweak)
5974 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
5975 eh->dyn_relocs = NULL;
5977 /* Make sure undefined weak symbols are output as a dynamic
5979 else if (h->dynindx == -1
5983 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5988 else if (ELIMINATE_COPY_RELOCS)
5990 /* For the non-shared case, discard space for relocs against
5991 symbols which turn out to need copy relocs or are not
5997 /* Make sure this symbol is output as a dynamic symbol.
5998 Undefined weak syms won't yet be marked as dynamic. */
5999 if (h->dynindx == -1
6000 && !h->forced_local)
6002 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6006 /* If that succeeded, we know we'll be keeping all the
6008 if (h->dynindx != -1)
6012 eh->dyn_relocs = NULL;
6017 /* Finally, allocate space. */
6018 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6020 asection *sreloc = elf_section_data (p->sec)->sreloc;
6021 if (!htab->elf.dynamic_sections_created)
6022 sreloc = htab->reliplt;
6023 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6029 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
6030 read-only sections. */
6033 maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
6035 if (h->root.type == bfd_link_hash_indirect)
6038 if (readonly_dynrelocs (h))
6040 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
6042 /* Not an error, just cut short the traversal. */
6048 static const unsigned char glink_eh_frame_cie[] =
6050 0, 0, 0, 16, /* length. */
6051 0, 0, 0, 0, /* id. */
6052 1, /* CIE version. */
6053 'z', 'R', 0, /* Augmentation string. */
6054 4, /* Code alignment. */
6055 0x7c, /* Data alignment. */
6057 1, /* Augmentation size. */
6058 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6059 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6062 /* Set the sizes of the dynamic sections. */
6065 ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
6066 struct bfd_link_info *info)
6068 struct ppc_elf_link_hash_table *htab;
6074 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
6077 htab = ppc_elf_hash_table (info);
6078 BFD_ASSERT (htab->elf.dynobj != NULL);
6080 if (elf_hash_table (info)->dynamic_sections_created)
6082 /* Set the contents of the .interp section to the interpreter. */
6083 if (info->executable)
6085 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
6086 BFD_ASSERT (s != NULL);
6087 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6088 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6092 if (htab->plt_type == PLT_OLD)
6093 htab->got_header_size = 16;
6094 else if (htab->plt_type == PLT_NEW)
6095 htab->got_header_size = 12;
6097 /* Set up .got offsets for local syms, and space for local dynamic
6099 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6101 bfd_signed_vma *local_got;
6102 bfd_signed_vma *end_local_got;
6103 struct plt_entry **local_plt;
6104 struct plt_entry **end_local_plt;
6106 bfd_size_type locsymcount;
6107 Elf_Internal_Shdr *symtab_hdr;
6109 if (!is_ppc_elf (ibfd))
6112 for (s = ibfd->sections; s != NULL; s = s->next)
6114 struct elf_dyn_relocs *p;
6116 for (p = ((struct elf_dyn_relocs *)
6117 elf_section_data (s)->local_dynrel);
6121 if (!bfd_is_abs_section (p->sec)
6122 && bfd_is_abs_section (p->sec->output_section))
6124 /* Input section has been discarded, either because
6125 it is a copy of a linkonce section or due to
6126 linker script /DISCARD/, so we'll be discarding
6129 else if (htab->is_vxworks
6130 && strcmp (p->sec->output_section->name,
6133 /* Relocations in vxworks .tls_vars sections are
6134 handled specially by the loader. */
6136 else if (p->count != 0)
6138 asection *sreloc = elf_section_data (p->sec)->sreloc;
6139 if (!htab->elf.dynamic_sections_created)
6140 sreloc = htab->reliplt;
6141 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6142 if ((p->sec->output_section->flags
6143 & (SEC_READONLY | SEC_ALLOC))
6144 == (SEC_READONLY | SEC_ALLOC))
6145 info->flags |= DF_TEXTREL;
6150 local_got = elf_local_got_refcounts (ibfd);
6154 symtab_hdr = &elf_symtab_hdr (ibfd);
6155 locsymcount = symtab_hdr->sh_info;
6156 end_local_got = local_got + locsymcount;
6157 local_plt = (struct plt_entry **) end_local_got;
6158 end_local_plt = local_plt + locsymcount;
6159 lgot_masks = (char *) end_local_plt;
6161 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6164 unsigned int need = 0;
6165 if ((*lgot_masks & TLS_TLS) != 0)
6167 if ((*lgot_masks & TLS_GD) != 0)
6169 if ((*lgot_masks & TLS_LD) != 0)
6170 htab->tlsld_got.refcount += 1;
6171 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6173 if ((*lgot_masks & TLS_DTPREL) != 0)
6179 *local_got = (bfd_vma) -1;
6182 *local_got = allocate_got (htab, need);
6184 htab->relgot->size += (need
6185 * (sizeof (Elf32_External_Rela) / 4));
6189 *local_got = (bfd_vma) -1;
6191 if (htab->is_vxworks)
6194 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6195 for (; local_plt < end_local_plt; ++local_plt)
6197 struct plt_entry *ent;
6198 bfd_boolean doneone = FALSE;
6199 bfd_vma plt_offset = 0, glink_offset = 0;
6201 for (ent = *local_plt; ent != NULL; ent = ent->next)
6202 if (ent->plt.refcount > 0)
6208 plt_offset = s->size;
6211 ent->plt.offset = plt_offset;
6214 if (!doneone || info->shared)
6216 glink_offset = s->size;
6217 s->size += GLINK_ENTRY_SIZE;
6219 ent->glink_offset = glink_offset;
6223 htab->reliplt->size += sizeof (Elf32_External_Rela);
6228 ent->plt.offset = (bfd_vma) -1;
6232 /* Allocate space for global sym dynamic relocs. */
6233 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6235 if (htab->tlsld_got.refcount > 0)
6237 htab->tlsld_got.offset = allocate_got (htab, 8);
6239 htab->relgot->size += sizeof (Elf32_External_Rela);
6242 htab->tlsld_got.offset = (bfd_vma) -1;
6244 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
6246 unsigned int g_o_t = 32768;
6248 /* If we haven't allocated the header, do so now. When we get here,
6249 for old plt/got the got size will be 0 to 32764 (not allocated),
6250 or 32780 to 65536 (header allocated). For new plt/got, the
6251 corresponding ranges are 0 to 32768 and 32780 to 65536. */
6252 if (htab->got->size <= 32768)
6254 g_o_t = htab->got->size;
6255 if (htab->plt_type == PLT_OLD)
6257 htab->got->size += htab->got_header_size;
6260 htab->elf.hgot->root.u.def.value = g_o_t;
6264 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6266 && !(sda->root.type == bfd_link_hash_defined
6267 || sda->root.type == bfd_link_hash_defweak))
6269 sda->root.type = bfd_link_hash_defined;
6270 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6271 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
6275 if (htab->glink != NULL
6276 && htab->glink->size != 0
6277 && htab->elf.dynamic_sections_created)
6279 htab->glink_pltresolve = htab->glink->size;
6280 /* Space for the branch table. */
6281 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6282 /* Pad out to align the start of PLTresolve. */
6283 htab->glink->size += -htab->glink->size & 15;
6284 htab->glink->size += GLINK_PLTRESOLVE;
6286 if (htab->emit_stub_syms)
6288 struct elf_link_hash_entry *sh;
6289 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6290 TRUE, FALSE, FALSE);
6293 if (sh->root.type == bfd_link_hash_new)
6295 sh->root.type = bfd_link_hash_defined;
6296 sh->root.u.def.section = htab->glink;
6297 sh->root.u.def.value = htab->glink_pltresolve;
6298 sh->ref_regular = 1;
6299 sh->def_regular = 1;
6300 sh->ref_regular_nonweak = 1;
6301 sh->forced_local = 1;
6304 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6305 TRUE, FALSE, FALSE);
6308 if (sh->root.type == bfd_link_hash_new)
6310 sh->root.type = bfd_link_hash_defined;
6311 sh->root.u.def.section = htab->glink;
6312 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6313 sh->ref_regular = 1;
6314 sh->def_regular = 1;
6315 sh->ref_regular_nonweak = 1;
6316 sh->forced_local = 1;
6322 if (htab->glink != NULL
6323 && htab->glink->size != 0
6324 && htab->glink_eh_frame != NULL
6325 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6326 && _bfd_elf_eh_frame_present (info))
6328 s = htab->glink_eh_frame;
6329 s->size = sizeof (glink_eh_frame_cie) + 20;
6333 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6338 /* We've now determined the sizes of the various dynamic sections.
6339 Allocate memory for them. */
6341 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
6343 bfd_boolean strip_section = TRUE;
6345 if ((s->flags & SEC_LINKER_CREATED) == 0)
6351 /* We'd like to strip these sections if they aren't needed, but if
6352 we've exported dynamic symbols from them we must leave them.
6353 It's too late to tell BFD to get rid of the symbols. */
6354 if (htab->elf.hplt != NULL)
6355 strip_section = FALSE;
6356 /* Strip this section if we don't need it; see the
6359 else if (s == htab->iplt
6361 || s == htab->glink_eh_frame
6362 || s == htab->sgotplt
6364 || s == htab->dynbss
6365 || s == htab->dynsbss
6366 || s == htab->sdata[0].section
6367 || s == htab->sdata[1].section)
6369 /* Strip these too. */
6371 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6376 /* Remember whether there are any relocation sections. */
6379 /* We use the reloc_count field as a counter if we need
6380 to copy relocs into the output file. */
6386 /* It's not one of our sections, so don't allocate space. */
6390 if (s->size == 0 && strip_section)
6392 /* If we don't need this section, strip it from the
6393 output file. This is mostly to handle .rela.bss and
6394 .rela.plt. We must create both sections in
6395 create_dynamic_sections, because they must be created
6396 before the linker maps input sections to output
6397 sections. The linker does that before
6398 adjust_dynamic_symbol is called, and it is that
6399 function which decides whether anything needs to go
6400 into these sections. */
6401 s->flags |= SEC_EXCLUDE;
6405 if ((s->flags & SEC_HAS_CONTENTS) == 0)
6408 /* Allocate memory for the section contents. */
6409 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6410 if (s->contents == NULL)
6414 if (htab->elf.dynamic_sections_created)
6416 /* Add some entries to the .dynamic section. We fill in the
6417 values later, in ppc_elf_finish_dynamic_sections, but we
6418 must add the entries now so that we get the correct size for
6419 the .dynamic section. The DT_DEBUG entry is filled in by the
6420 dynamic linker and used by the debugger. */
6421 #define add_dynamic_entry(TAG, VAL) \
6422 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6424 if (info->executable)
6426 if (!add_dynamic_entry (DT_DEBUG, 0))
6430 if (htab->plt != NULL && htab->plt->size != 0)
6432 if (!add_dynamic_entry (DT_PLTGOT, 0)
6433 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6434 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6435 || !add_dynamic_entry (DT_JMPREL, 0))
6439 if (htab->glink != NULL && htab->glink->size != 0)
6441 if (!add_dynamic_entry (DT_PPC_GOT, 0))
6443 if (!htab->no_tls_get_addr_opt
6444 && htab->tls_get_addr != NULL
6445 && htab->tls_get_addr->plt.plist != NULL
6446 && !add_dynamic_entry (DT_PPC_TLSOPT, 0))
6452 if (!add_dynamic_entry (DT_RELA, 0)
6453 || !add_dynamic_entry (DT_RELASZ, 0)
6454 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6458 /* If any dynamic relocs apply to a read-only section, then we
6459 need a DT_TEXTREL entry. */
6460 if ((info->flags & DF_TEXTREL) == 0)
6461 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
6464 if ((info->flags & DF_TEXTREL) != 0)
6466 if (!add_dynamic_entry (DT_TEXTREL, 0))
6469 if (htab->is_vxworks
6470 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6473 #undef add_dynamic_entry
6475 if (htab->glink_eh_frame != NULL
6476 && htab->glink_eh_frame->contents != NULL)
6478 unsigned char *p = htab->glink_eh_frame->contents;
6481 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6482 /* CIE length (rewrite in case little-endian). */
6483 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6484 p += sizeof (glink_eh_frame_cie);
6486 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6487 bfd_put_32 (htab->elf.dynobj, val, p);
6490 val = p - htab->glink_eh_frame->contents;
6491 bfd_put_32 (htab->elf.dynobj, val, p);
6493 /* Offset to .glink. Set later. */
6496 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6502 && htab->elf.dynamic_sections_created)
6504 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6506 *p++ = DW_CFA_advance_loc + adv;
6509 *p++ = DW_CFA_advance_loc1;
6512 else if (adv < 65536)
6514 *p++ = DW_CFA_advance_loc2;
6515 bfd_put_16 (htab->elf.dynobj, adv, p);
6520 *p++ = DW_CFA_advance_loc4;
6521 bfd_put_32 (htab->elf.dynobj, adv, p);
6524 *p++ = DW_CFA_register;
6527 *p++ = DW_CFA_advance_loc + 4;
6528 *p++ = DW_CFA_restore_extended;
6531 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6532 == htab->glink_eh_frame->size);
6538 /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6541 ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6543 if (h->plt.plist != NULL
6545 && (!h->pointer_equality_needed
6546 || !h->ref_regular_nonweak))
6549 return _bfd_elf_hash_symbol (h);
6552 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6554 /* Relaxation trampolines. r12 is available for clobbering (r11, is
6555 used for some functions that are allowed to break the ABI). */
6556 static const int shared_stub_entry[] =
6558 0x7c0802a6, /* mflr 0 */
6559 0x429f0005, /* bcl 20, 31, .Lxxx */
6560 0x7d8802a6, /* mflr 12 */
6561 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
6562 0x398c0008, /* addi 12, 12, (xxx-.Lxxx)@l */
6563 0x7c0803a6, /* mtlr 0 */
6564 0x7d8903a6, /* mtctr 12 */
6565 0x4e800420, /* bctr */
6568 static const int stub_entry[] =
6570 0x3d800000, /* lis 12,xxx@ha */
6571 0x398c0000, /* addi 12,12,xxx@l */
6572 0x7d8903a6, /* mtctr 12 */
6573 0x4e800420, /* bctr */
6577 ppc_elf_relax_section (bfd *abfd,
6579 struct bfd_link_info *link_info,
6584 struct one_fixup *next;
6586 /* Final link, can use the symbol offset. For a
6587 relocatable link we use the symbol's index. */
6592 Elf_Internal_Shdr *symtab_hdr;
6593 bfd_byte *contents = NULL;
6594 Elf_Internal_Sym *isymbuf = NULL;
6595 Elf_Internal_Rela *internal_relocs = NULL;
6596 Elf_Internal_Rela *irel, *irelend;
6597 struct one_fixup *fixups = NULL;
6598 unsigned changes = 0;
6599 struct ppc_elf_link_hash_table *htab;
6600 bfd_size_type trampoff;
6602 bfd_boolean maybe_pasted;
6606 /* Nothing to do if there are no relocations, and no need to do
6607 anything with non-alloc or non-code sections. */
6608 if ((isec->flags & SEC_ALLOC) == 0
6609 || (isec->flags & SEC_CODE) == 0
6610 || (isec->flags & SEC_RELOC) == 0
6611 || isec->reloc_count == 0)
6614 /* We cannot represent the required PIC relocs in the output, so don't
6615 do anything. The linker doesn't support mixing -shared and -r
6617 if (link_info->relocatable && link_info->shared)
6620 trampoff = (isec->size + 3) & (bfd_vma) -4;
6621 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6622 || strcmp (isec->output_section->name, ".fini") == 0);
6623 /* Space for a branch around any trampolines. */
6627 symtab_hdr = &elf_symtab_hdr (abfd);
6629 /* Get a copy of the native relocations. */
6630 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6631 link_info->keep_memory);
6632 if (internal_relocs == NULL)
6635 htab = ppc_elf_hash_table (link_info);
6636 got2 = bfd_get_section_by_name (abfd, ".got2");
6638 irelend = internal_relocs + isec->reloc_count;
6639 for (irel = internal_relocs; irel < irelend; irel++)
6641 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
6644 struct one_fixup *f;
6645 size_t insn_offset = 0;
6646 bfd_vma max_branch_offset, val;
6649 struct elf_link_hash_entry *h;
6650 struct plt_entry **plist;
6651 unsigned char sym_type;
6656 case R_PPC_LOCAL24PC:
6657 case R_PPC_PLTREL24:
6658 max_branch_offset = 1 << 25;
6662 case R_PPC_REL14_BRTAKEN:
6663 case R_PPC_REL14_BRNTAKEN:
6664 max_branch_offset = 1 << 15;
6671 /* Get the value of the symbol referred to by the reloc. */
6673 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
6675 /* A local symbol. */
6676 Elf_Internal_Sym *isym;
6678 /* Read this BFD's local symbols. */
6679 if (isymbuf == NULL)
6681 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
6682 if (isymbuf == NULL)
6683 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
6684 symtab_hdr->sh_info, 0,
6689 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6690 if (isym->st_shndx == SHN_UNDEF)
6691 tsec = bfd_und_section_ptr;
6692 else if (isym->st_shndx == SHN_ABS)
6693 tsec = bfd_abs_section_ptr;
6694 else if (isym->st_shndx == SHN_COMMON)
6695 tsec = bfd_com_section_ptr;
6697 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
6699 toff = isym->st_value;
6700 sym_type = ELF_ST_TYPE (isym->st_info);
6704 /* Global symbol handling. */
6707 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6708 h = elf_sym_hashes (abfd)[indx];
6710 while (h->root.type == bfd_link_hash_indirect
6711 || h->root.type == bfd_link_hash_warning)
6712 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6714 if (h->root.type == bfd_link_hash_defined
6715 || h->root.type == bfd_link_hash_defweak)
6717 tsec = h->root.u.def.section;
6718 toff = h->root.u.def.value;
6720 else if (h->root.type == bfd_link_hash_undefined
6721 || h->root.type == bfd_link_hash_undefweak)
6723 tsec = bfd_und_section_ptr;
6724 toff = link_info->relocatable ? indx : 0;
6732 /* The condition here under which we call find_plt_ent must
6733 match that in relocate_section. If we call find_plt_ent here
6734 but not in relocate_section, or vice versa, then the branch
6735 destination used here may be incorrect. */
6739 /* We know is_branch_reloc (r_type) is true. */
6740 if (h->type == STT_GNU_IFUNC
6741 || r_type == R_PPC_PLTREL24)
6742 plist = &h->plt.plist;
6744 else if (sym_type == STT_GNU_IFUNC
6745 && elf_local_got_offsets (abfd) != NULL)
6747 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6748 struct plt_entry **local_plt = (struct plt_entry **)
6749 (local_got_offsets + symtab_hdr->sh_info);
6750 plist = local_plt + ELF32_R_SYM (irel->r_info);
6755 struct plt_entry *ent;
6757 if (r_type == R_PPC_PLTREL24 && link_info->shared)
6758 addend = irel->r_addend;
6759 ent = find_plt_ent (plist, got2, addend);
6762 if (htab->plt_type == PLT_NEW
6764 || !htab->elf.dynamic_sections_created
6765 || h->dynindx == -1)
6768 toff = ent->glink_offset;
6773 toff = ent->plt.offset;
6778 /* If the branch and target are in the same section, you have
6779 no hope of adding stubs. We'll error out later should the
6784 /* There probably isn't any reason to handle symbols in
6785 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
6786 attribute for a code section, and we are only looking at
6787 branches. However, implement it correctly here as a
6788 reference for other target relax_section functions. */
6789 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
6791 /* At this stage in linking, no SEC_MERGE symbol has been
6792 adjusted, so all references to such symbols need to be
6793 passed through _bfd_merged_section_offset. (Later, in
6794 relocate_section, all SEC_MERGE symbols *except* for
6795 section symbols have been adjusted.)
6797 gas may reduce relocations against symbols in SEC_MERGE
6798 sections to a relocation against the section symbol when
6799 the original addend was zero. When the reloc is against
6800 a section symbol we should include the addend in the
6801 offset passed to _bfd_merged_section_offset, since the
6802 location of interest is the original symbol. On the
6803 other hand, an access to "sym+addend" where "sym" is not
6804 a section symbol should not include the addend; Such an
6805 access is presumed to be an offset from "sym"; The
6806 location of interest is just "sym". */
6807 if (sym_type == STT_SECTION)
6808 toff += irel->r_addend;
6810 toff = _bfd_merged_section_offset (abfd, &tsec,
6811 elf_section_data (tsec)->sec_info,
6814 if (sym_type != STT_SECTION)
6815 toff += irel->r_addend;
6817 /* PLTREL24 addends are special. */
6818 else if (r_type != R_PPC_PLTREL24)
6819 toff += irel->r_addend;
6821 /* Attempted -shared link of non-pic code loses. */
6822 if (tsec->output_section == NULL)
6825 roff = irel->r_offset;
6827 /* If the branch is in range, no need to do anything. */
6828 if (tsec != bfd_und_section_ptr
6829 && (!link_info->relocatable
6830 /* A relocatable link may have sections moved during
6831 final link, so do not presume they remain in range. */
6832 || tsec->output_section == isec->output_section))
6834 bfd_vma symaddr, reladdr;
6836 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
6837 reladdr = isec->output_section->vma + isec->output_offset + roff;
6838 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
6842 /* Look for an existing fixup to this address. */
6843 for (f = fixups; f ; f = f->next)
6844 if (f->tsec == tsec && f->toff == toff)
6850 unsigned long stub_rtype;
6852 val = trampoff - roff;
6853 if (val >= max_branch_offset)
6854 /* Oh dear, we can't reach a trampoline. Don't try to add
6855 one. We'll report an error later. */
6858 if (link_info->shared)
6860 size = 4 * ARRAY_SIZE (shared_stub_entry);
6865 size = 4 * ARRAY_SIZE (stub_entry);
6868 stub_rtype = R_PPC_RELAX;
6869 if (tsec == htab->plt
6870 || tsec == htab->glink)
6872 stub_rtype = R_PPC_RELAX_PLT;
6873 if (r_type == R_PPC_PLTREL24)
6874 stub_rtype = R_PPC_RELAX_PLTREL24;
6877 /* Hijack the old relocation. Since we need two
6878 relocations for this use a "composite" reloc. */
6879 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
6881 irel->r_offset = trampoff + insn_offset;
6882 if (r_type == R_PPC_PLTREL24
6883 && stub_rtype != R_PPC_RELAX_PLTREL24)
6886 /* Record the fixup so we don't do it again this section. */
6887 f = bfd_malloc (sizeof (*f));
6891 f->trampoff = trampoff;
6899 val = f->trampoff - roff;
6900 if (val >= max_branch_offset)
6903 /* Nop out the reloc, since we're finalizing things here. */
6904 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
6907 /* Get the section contents. */
6908 if (contents == NULL)
6910 /* Get cached copy if it exists. */
6911 if (elf_section_data (isec)->this_hdr.contents != NULL)
6912 contents = elf_section_data (isec)->this_hdr.contents;
6915 /* Go get them off disk. */
6916 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
6921 /* Fix up the existing branch to hit the trampoline. */
6922 hit_addr = contents + roff;
6926 case R_PPC_LOCAL24PC:
6927 case R_PPC_PLTREL24:
6928 t0 = bfd_get_32 (abfd, hit_addr);
6930 t0 |= val & 0x3fffffc;
6931 bfd_put_32 (abfd, t0, hit_addr);
6935 case R_PPC_REL14_BRTAKEN:
6936 case R_PPC_REL14_BRNTAKEN:
6937 t0 = bfd_get_32 (abfd, hit_addr);
6940 bfd_put_32 (abfd, t0, hit_addr);
6945 /* Write out the trampolines. */
6954 struct one_fixup *f = fixups;
6955 fixups = fixups->next;
6960 contents = bfd_realloc_or_free (contents, trampoff);
6961 if (contents == NULL)
6964 isec->size = (isec->size + 3) & (bfd_vma) -4;
6965 dest = contents + isec->size;
6966 /* Branch around the trampolines. */
6969 bfd_vma val = B + trampoff - isec->size;
6970 bfd_put_32 (abfd, val, dest);
6973 isec->size = trampoff;
6975 if (link_info->shared)
6977 stub = shared_stub_entry;
6978 size = ARRAY_SIZE (shared_stub_entry);
6983 size = ARRAY_SIZE (stub_entry);
6987 while (dest < contents + trampoff)
6989 bfd_put_32 (abfd, stub[i], dest);
6995 BFD_ASSERT (i == 0);
6999 && symtab_hdr->contents != (unsigned char *) isymbuf)
7001 if (! link_info->keep_memory)
7005 /* Cache the symbols for elf_link_input_bfd. */
7006 symtab_hdr->contents = (unsigned char *) isymbuf;
7010 if (contents != NULL
7011 && elf_section_data (isec)->this_hdr.contents != contents)
7013 if (!changes && !link_info->keep_memory)
7017 /* Cache the section contents for elf_link_input_bfd. */
7018 elf_section_data (isec)->this_hdr.contents = contents;
7024 /* Append sufficient NOP relocs so we can write out relocation
7025 information for the trampolines. */
7026 Elf_Internal_Shdr *rel_hdr;
7027 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7028 * sizeof (*new_relocs));
7033 memcpy (new_relocs, internal_relocs,
7034 isec->reloc_count * sizeof (*new_relocs));
7035 for (ix = changes; ix--;)
7037 irel = new_relocs + ix + isec->reloc_count;
7039 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7041 if (internal_relocs != elf_section_data (isec)->relocs)
7042 free (internal_relocs);
7043 elf_section_data (isec)->relocs = new_relocs;
7044 isec->reloc_count += changes;
7045 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7046 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
7048 else if (elf_section_data (isec)->relocs != internal_relocs)
7049 free (internal_relocs);
7051 *again = changes != 0;
7052 if (!*again && link_info->relocatable)
7054 /* Convert the internal relax relocs to external form. */
7055 for (irel = internal_relocs; irel < irelend; irel++)
7056 if (ELF32_R_TYPE (irel->r_info) == R_PPC_RELAX)
7058 unsigned long r_symndx = ELF32_R_SYM (irel->r_info);
7060 /* Rewrite the reloc and convert one of the trailing nop
7061 relocs to describe this relocation. */
7062 BFD_ASSERT (ELF32_R_TYPE (irelend[-1].r_info) == R_PPC_NONE);
7063 /* The relocs are at the bottom 2 bytes */
7064 irel[0].r_offset += 2;
7065 memmove (irel + 1, irel, (irelend - irel - 1) * sizeof (*irel));
7066 irel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
7067 irel[1].r_offset += 4;
7068 irel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
7076 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7078 if (contents != NULL
7079 && elf_section_data (isec)->this_hdr.contents != contents)
7081 if (internal_relocs != NULL
7082 && elf_section_data (isec)->relocs != internal_relocs)
7083 free (internal_relocs);
7087 /* What to do when ld finds relocations against symbols defined in
7088 discarded sections. */
7091 ppc_elf_action_discarded (asection *sec)
7093 if (strcmp (".fixup", sec->name) == 0)
7096 if (strcmp (".got2", sec->name) == 0)
7099 return _bfd_elf_default_action_discarded (sec);
7102 /* Fill in the address for a pointer generated in a linker section. */
7105 elf_finish_pointer_linker_section (bfd *input_bfd,
7106 elf_linker_section_t *lsect,
7107 struct elf_link_hash_entry *h,
7109 const Elf_Internal_Rela *rel)
7111 elf_linker_section_pointers_t *linker_section_ptr;
7113 BFD_ASSERT (lsect != NULL);
7117 /* Handle global symbol. */
7118 struct ppc_elf_link_hash_entry *eh;
7120 eh = (struct ppc_elf_link_hash_entry *) h;
7121 BFD_ASSERT (eh->elf.def_regular);
7122 linker_section_ptr = eh->linker_section_pointer;
7126 /* Handle local symbol. */
7127 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
7129 BFD_ASSERT (is_ppc_elf (input_bfd));
7130 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
7131 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7134 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7137 BFD_ASSERT (linker_section_ptr != NULL);
7139 /* Offset will always be a multiple of four, so use the bottom bit
7140 as a "written" flag. */
7141 if ((linker_section_ptr->offset & 1) == 0)
7143 bfd_put_32 (lsect->section->owner,
7144 relocation + linker_section_ptr->addend,
7145 lsect->section->contents + linker_section_ptr->offset);
7146 linker_section_ptr->offset += 1;
7149 relocation = (lsect->section->output_section->vma
7150 + lsect->section->output_offset
7151 + linker_section_ptr->offset - 1
7152 - SYM_VAL (lsect->sym));
7156 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7157 lsect->name, (long) relocation, (long) relocation);
7163 #define PPC_LO(v) ((v) & 0xffff)
7164 #define PPC_HI(v) (((v) >> 16) & 0xffff)
7165 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
7168 write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
7169 struct bfd_link_info *info)
7171 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7172 bfd *output_bfd = info->output_bfd;
7175 plt = ((ent->plt.offset & ~1)
7176 + plt_sec->output_section->vma
7177 + plt_sec->output_offset);
7183 if (ent->addend >= 32768)
7185 + ent->sec->output_section->vma
7186 + ent->sec->output_offset);
7187 else if (htab->elf.hgot != NULL)
7188 got = SYM_VAL (htab->elf.hgot);
7192 if (plt + 0x8000 < 0x10000)
7194 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7196 bfd_put_32 (output_bfd, MTCTR_11, p);
7198 bfd_put_32 (output_bfd, BCTR, p);
7200 bfd_put_32 (output_bfd, NOP, p);
7205 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7207 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7209 bfd_put_32 (output_bfd, MTCTR_11, p);
7211 bfd_put_32 (output_bfd, BCTR, p);
7217 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7219 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7221 bfd_put_32 (output_bfd, MTCTR_11, p);
7223 bfd_put_32 (output_bfd, BCTR, p);
7228 /* Return true if symbol is defined statically. */
7231 is_static_defined (struct elf_link_hash_entry *h)
7233 return ((h->root.type == bfd_link_hash_defined
7234 || h->root.type == bfd_link_hash_defweak)
7235 && h->root.u.def.section != NULL
7236 && h->root.u.def.section->output_section != NULL);
7239 /* If INSN is an opcode that may be used with an @tls operand, return
7240 the transformed insn for TLS optimisation, otherwise return 0. If
7241 REG is non-zero only match an insn with RB or RA equal to REG. */
7244 _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7248 if ((insn & (0x3f << 26)) != 31 << 26)
7251 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7252 rtra = insn & ((1 << 26) - (1 << 16));
7253 else if (((insn >> 16) & 0x1f) == reg)
7254 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7258 if ((insn & (0x3ff << 1)) == 266 << 1)
7261 else if ((insn & (0x1f << 1)) == 23 << 1
7262 && ((insn & (0x1f << 6)) < 14 << 6
7263 || ((insn & (0x1f << 6)) >= 16 << 6
7264 && (insn & (0x1f << 6)) < 24 << 6)))
7265 /* load and store indexed -> dform. */
7266 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7267 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7268 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7269 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7270 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7272 insn = (58 << 26) | 2;
7279 /* If INSN is an opcode that may be used with an @tprel operand, return
7280 the transformed insn for an undefined weak symbol, ie. with the
7281 thread pointer REG operand removed. Otherwise return 0. */
7284 _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7286 if ((insn & (0x1f << 16)) == reg << 16
7287 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7288 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7289 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7290 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7291 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7292 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7293 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7294 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7295 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7296 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7297 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7298 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7299 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7300 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7301 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7302 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7304 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7305 && ((insn & 3) == 0 || (insn & 3) == 3))))
7307 insn &= ~(0x1f << 16);
7309 else if ((insn & (0x1f << 21)) == reg << 21
7310 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7311 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7312 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7314 insn &= ~(0x1f << 21);
7315 insn |= (insn & (0x1f << 16)) << 5;
7316 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7317 insn -= 2 >> 26; /* convert to ori,oris */
7325 is_insn_ds_form (unsigned int insn)
7327 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7328 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7329 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7330 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7334 is_insn_dq_form (unsigned int insn)
7336 return (insn & (0x3f << 26)) == 56u << 26; /* lq */
7339 /* The RELOCATE_SECTION function is called by the ELF backend linker
7340 to handle the relocations for a section.
7342 The relocs are always passed as Rela structures; if the section
7343 actually uses Rel structures, the r_addend field will always be
7346 This function is responsible for adjust the section contents as
7347 necessary, and (if using Rela relocs and generating a
7348 relocatable output file) adjusting the reloc addend as
7351 This function does not have to worry about setting the reloc
7352 address or the reloc symbol index.
7354 LOCAL_SYMS is a pointer to the swapped in local symbols.
7356 LOCAL_SECTIONS is an array giving the section in the input file
7357 corresponding to the st_shndx field of each local symbol.
7359 The global hash table entry for the global symbols can be found
7360 via elf_sym_hashes (input_bfd).
7362 When generating relocatable output, this function must handle
7363 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7364 going to be the section symbol corresponding to the output
7365 section, which means that the addend must be adjusted
7369 ppc_elf_relocate_section (bfd *output_bfd,
7370 struct bfd_link_info *info,
7372 asection *input_section,
7374 Elf_Internal_Rela *relocs,
7375 Elf_Internal_Sym *local_syms,
7376 asection **local_sections)
7378 Elf_Internal_Shdr *symtab_hdr;
7379 struct elf_link_hash_entry **sym_hashes;
7380 struct ppc_elf_link_hash_table *htab;
7381 Elf_Internal_Rela *rel;
7382 Elf_Internal_Rela *relend;
7383 Elf_Internal_Rela outrel;
7384 asection *got2, *sreloc = NULL;
7385 bfd_vma *local_got_offsets;
7386 bfd_boolean ret = TRUE;
7387 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
7388 bfd_boolean is_vxworks_tls;
7391 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7392 "%ld relocations%s",
7393 input_bfd, input_section,
7394 (long) input_section->reloc_count,
7395 (info->relocatable) ? " (relocatable)" : "");
7398 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7400 /* Initialize howto table if not already done. */
7401 if (!ppc_elf_howto_table[R_PPC_ADDR32])
7402 ppc_elf_howto_init ();
7404 htab = ppc_elf_hash_table (info);
7405 local_got_offsets = elf_local_got_offsets (input_bfd);
7406 symtab_hdr = &elf_symtab_hdr (input_bfd);
7407 sym_hashes = elf_sym_hashes (input_bfd);
7408 /* We have to handle relocations in vxworks .tls_vars sections
7409 specially, because the dynamic loader is 'weird'. */
7410 is_vxworks_tls = (htab->is_vxworks && info->shared
7411 && !strcmp (input_section->output_section->name,
7414 relend = relocs + input_section->reloc_count;
7415 for (; rel < relend; rel++)
7417 enum elf_ppc_reloc_type r_type;
7419 bfd_reloc_status_type r;
7420 Elf_Internal_Sym *sym;
7422 struct elf_link_hash_entry *h;
7423 const char *sym_name;
7424 reloc_howto_type *howto;
7425 unsigned long r_symndx;
7427 bfd_vma branch_bit, from;
7428 bfd_boolean unresolved_reloc;
7430 unsigned int tls_type, tls_mask, tls_gd;
7431 struct plt_entry **ifunc;
7433 r_type = ELF32_R_TYPE (rel->r_info);
7437 unresolved_reloc = FALSE;
7439 r_symndx = ELF32_R_SYM (rel->r_info);
7441 if (r_symndx < symtab_hdr->sh_info)
7443 sym = local_syms + r_symndx;
7444 sec = local_sections[r_symndx];
7445 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
7447 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
7451 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7452 r_symndx, symtab_hdr, sym_hashes,
7454 unresolved_reloc, warned);
7456 sym_name = h->root.root.string;
7459 if (sec != NULL && discarded_section (sec))
7461 /* For relocs against symbols from removed linkonce sections,
7462 or sections discarded by a linker script, we just want the
7463 section contents zeroed. Avoid any special processing. */
7465 if (r_type < R_PPC_max)
7466 howto = ppc_elf_howto_table[r_type];
7467 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
7468 rel, 1, relend, howto, 0, contents);
7471 if (info->relocatable)
7474 && r_type == R_PPC_PLTREL24
7475 && rel->r_addend >= 32768)
7477 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7478 addend specifies the GOT pointer offset within .got2. */
7479 rel->r_addend += got2->output_offset;
7484 /* TLS optimizations. Replace instruction sequences and relocs
7485 based on information we collected in tls_optimize. We edit
7486 RELOCS so that --emit-relocs will output something sensible
7487 for the final instruction stream. */
7491 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7492 else if (local_got_offsets != NULL)
7494 struct plt_entry **local_plt;
7497 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7498 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
7499 tls_mask = lgot_masks[r_symndx];
7502 /* Ensure reloc mapping code below stays sane. */
7503 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7504 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7505 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7506 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7507 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7508 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7509 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7510 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7517 case R_PPC_GOT_TPREL16:
7518 case R_PPC_GOT_TPREL16_LO:
7519 if ((tls_mask & TLS_TLS) != 0
7520 && (tls_mask & TLS_TPREL) == 0)
7524 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
7526 insn |= 0x3c020000; /* addis 0,2,0 */
7527 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
7528 r_type = R_PPC_TPREL16_HA;
7529 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7534 if ((tls_mask & TLS_TLS) != 0
7535 && (tls_mask & TLS_TPREL) == 0)
7539 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7540 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7543 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7544 r_type = R_PPC_TPREL16_LO;
7545 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7547 /* Was PPC_TLS which sits on insn boundary, now
7548 PPC_TPREL16_LO which is at low-order half-word. */
7549 rel->r_offset += d_offset;
7553 case R_PPC_GOT_TLSGD16_HI:
7554 case R_PPC_GOT_TLSGD16_HA:
7555 tls_gd = TLS_TPRELGD;
7556 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7560 case R_PPC_GOT_TLSLD16_HI:
7561 case R_PPC_GOT_TLSLD16_HA:
7562 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7565 if ((tls_mask & tls_gd) != 0)
7566 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7567 + R_PPC_GOT_TPREL16);
7570 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7571 rel->r_offset -= d_offset;
7572 r_type = R_PPC_NONE;
7574 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7578 case R_PPC_GOT_TLSGD16:
7579 case R_PPC_GOT_TLSGD16_LO:
7580 tls_gd = TLS_TPRELGD;
7581 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7585 case R_PPC_GOT_TLSLD16:
7586 case R_PPC_GOT_TLSLD16_LO:
7587 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7589 unsigned int insn1, insn2;
7593 offset = (bfd_vma) -1;
7594 /* If not using the newer R_PPC_TLSGD/LD to mark
7595 __tls_get_addr calls, we must trust that the call
7596 stays with its arg setup insns, ie. that the next
7597 reloc is the __tls_get_addr call associated with
7598 the current reloc. Edit both insns. */
7599 if (input_section->has_tls_get_addr_call
7601 && branch_reloc_hash_match (input_bfd, rel + 1,
7602 htab->tls_get_addr))
7603 offset = rel[1].r_offset;
7604 if ((tls_mask & tls_gd) != 0)
7607 insn1 = bfd_get_32 (output_bfd,
7608 contents + rel->r_offset - d_offset);
7609 insn1 &= (1 << 26) - 1;
7610 insn1 |= 32 << 26; /* lwz */
7611 if (offset != (bfd_vma) -1)
7613 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7614 insn2 = 0x7c631214; /* add 3,3,2 */
7615 bfd_put_32 (output_bfd, insn2, contents + offset);
7617 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7618 + R_PPC_GOT_TPREL16);
7619 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7624 insn1 = 0x3c620000; /* addis 3,2,0 */
7627 /* Was an LD reloc. */
7629 r_symndx < symtab_hdr->sh_info;
7631 if (local_sections[r_symndx] == sec)
7633 if (r_symndx >= symtab_hdr->sh_info)
7634 r_symndx = STN_UNDEF;
7635 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7636 if (r_symndx != STN_UNDEF)
7637 rel->r_addend -= (local_syms[r_symndx].st_value
7638 + sec->output_offset
7639 + sec->output_section->vma);
7641 r_type = R_PPC_TPREL16_HA;
7642 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7643 if (offset != (bfd_vma) -1)
7645 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7646 rel[1].r_offset = offset + d_offset;
7647 rel[1].r_addend = rel->r_addend;
7648 insn2 = 0x38630000; /* addi 3,3,0 */
7649 bfd_put_32 (output_bfd, insn2, contents + offset);
7652 bfd_put_32 (output_bfd, insn1,
7653 contents + rel->r_offset - d_offset);
7656 /* We changed the symbol on an LD reloc. Start over
7657 in order to get h, sym, sec etc. right. */
7665 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7668 bfd_vma offset = rel->r_offset;
7670 if ((tls_mask & TLS_TPRELGD) != 0)
7673 r_type = R_PPC_NONE;
7674 insn2 = 0x7c631214; /* add 3,3,2 */
7679 r_type = R_PPC_TPREL16_LO;
7680 rel->r_offset += d_offset;
7681 insn2 = 0x38630000; /* addi 3,3,0 */
7683 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7684 bfd_put_32 (output_bfd, insn2, contents + offset);
7685 /* Zap the reloc on the _tls_get_addr call too. */
7686 BFD_ASSERT (offset == rel[1].r_offset);
7687 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7692 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7697 r_symndx < symtab_hdr->sh_info;
7699 if (local_sections[r_symndx] == sec)
7701 if (r_symndx >= symtab_hdr->sh_info)
7702 r_symndx = STN_UNDEF;
7703 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7704 if (r_symndx != STN_UNDEF)
7705 rel->r_addend -= (local_syms[r_symndx].st_value
7706 + sec->output_offset
7707 + sec->output_section->vma);
7709 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7710 rel->r_offset += d_offset;
7711 insn2 = 0x38630000; /* addi 3,3,0 */
7712 bfd_put_32 (output_bfd, insn2,
7713 contents + rel->r_offset - d_offset);
7714 /* Zap the reloc on the _tls_get_addr call too. */
7715 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
7716 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7723 /* Handle other relocations that tweak non-addend part of insn. */
7730 /* Branch taken prediction relocations. */
7731 case R_PPC_ADDR14_BRTAKEN:
7732 case R_PPC_REL14_BRTAKEN:
7733 branch_bit = BRANCH_PREDICT_BIT;
7736 /* Branch not taken prediction relocations. */
7737 case R_PPC_ADDR14_BRNTAKEN:
7738 case R_PPC_REL14_BRNTAKEN:
7742 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7743 insn &= ~BRANCH_PREDICT_BIT;
7746 from = (rel->r_offset
7747 + input_section->output_offset
7748 + input_section->output_section->vma);
7750 /* Invert 'y' bit if not the default. */
7751 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
7752 insn ^= BRANCH_PREDICT_BIT;
7754 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7760 if (!htab->is_vxworks)
7762 struct plt_entry *ent;
7766 if (h->type == STT_GNU_IFUNC)
7767 ifunc = &h->plt.plist;
7769 else if (local_got_offsets != NULL
7770 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
7772 struct plt_entry **local_plt;
7774 local_plt = (struct plt_entry **) (local_got_offsets
7775 + symtab_hdr->sh_info);
7776 ifunc = local_plt + r_symndx;
7782 || is_branch_reloc (r_type)))
7785 if (r_type == R_PPC_PLTREL24 && info->shared)
7786 addend = rel->r_addend;
7787 ent = find_plt_ent (ifunc, got2, addend);
7791 if (h == NULL && (ent->plt.offset & 1) == 0)
7793 Elf_Internal_Rela rela;
7796 rela.r_offset = (htab->iplt->output_section->vma
7797 + htab->iplt->output_offset
7799 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
7800 rela.r_addend = relocation;
7801 loc = htab->reliplt->contents;
7802 loc += (htab->reliplt->reloc_count++
7803 * sizeof (Elf32_External_Rela));
7804 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7806 ent->plt.offset |= 1;
7808 if (h == NULL && (ent->glink_offset & 1) == 0)
7810 unsigned char *p = ((unsigned char *) htab->glink->contents
7811 + ent->glink_offset);
7812 write_glink_stub (ent, htab->iplt, p, info);
7813 ent->glink_offset |= 1;
7816 unresolved_reloc = FALSE;
7817 if (htab->plt_type == PLT_NEW
7818 || !htab->elf.dynamic_sections_created
7820 relocation = (htab->glink->output_section->vma
7821 + htab->glink->output_offset
7822 + (ent->glink_offset & ~1));
7824 relocation = (htab->plt->output_section->vma
7825 + htab->plt->output_offset
7830 addend = rel->r_addend;
7833 if (r_type < R_PPC_max)
7834 howto = ppc_elf_howto_table[r_type];
7838 info->callbacks->einfo
7839 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
7840 input_bfd, (int) r_type, sym_name);
7842 bfd_set_error (bfd_error_bad_value);
7850 case R_PPC_EMB_MRKREF:
7851 case R_PPC_GNU_VTINHERIT:
7852 case R_PPC_GNU_VTENTRY:
7855 /* GOT16 relocations. Like an ADDR16 using the symbol's
7856 address in the GOT as relocation value instead of the
7857 symbol's value itself. Also, create a GOT entry for the
7858 symbol and put the symbol value there. */
7859 case R_PPC_GOT_TLSGD16:
7860 case R_PPC_GOT_TLSGD16_LO:
7861 case R_PPC_GOT_TLSGD16_HI:
7862 case R_PPC_GOT_TLSGD16_HA:
7863 tls_type = TLS_TLS | TLS_GD;
7866 case R_PPC_GOT_TLSLD16:
7867 case R_PPC_GOT_TLSLD16_LO:
7868 case R_PPC_GOT_TLSLD16_HI:
7869 case R_PPC_GOT_TLSLD16_HA:
7870 tls_type = TLS_TLS | TLS_LD;
7873 case R_PPC_GOT_TPREL16:
7874 case R_PPC_GOT_TPREL16_LO:
7875 case R_PPC_GOT_TPREL16_HI:
7876 case R_PPC_GOT_TPREL16_HA:
7877 tls_type = TLS_TLS | TLS_TPREL;
7880 case R_PPC_GOT_DTPREL16:
7881 case R_PPC_GOT_DTPREL16_LO:
7882 case R_PPC_GOT_DTPREL16_HI:
7883 case R_PPC_GOT_DTPREL16_HA:
7884 tls_type = TLS_TLS | TLS_DTPREL;
7888 case R_PPC_GOT16_LO:
7889 case R_PPC_GOT16_HI:
7890 case R_PPC_GOT16_HA:
7894 /* Relocation is to the entry for this symbol in the global
7900 if (htab->got == NULL)
7904 if (tls_type == (TLS_TLS | TLS_LD)
7906 || !h->def_dynamic))
7907 offp = &htab->tlsld_got.offset;
7911 dyn = htab->elf.dynamic_sections_created;
7912 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7914 && SYMBOL_REFERENCES_LOCAL (info, h)))
7915 /* This is actually a static link, or it is a
7916 -Bsymbolic link and the symbol is defined
7917 locally, or the symbol was forced to be local
7918 because of a version file. */
7922 BFD_ASSERT (h->dynindx != -1);
7924 unresolved_reloc = FALSE;
7926 offp = &h->got.offset;
7930 if (local_got_offsets == NULL)
7932 offp = &local_got_offsets[r_symndx];
7935 /* The offset must always be a multiple of 4. We use the
7936 least significant bit to record whether we have already
7937 processed this entry. */
7943 unsigned int tls_m = (tls_mask
7944 & (TLS_LD | TLS_GD | TLS_DTPREL
7945 | TLS_TPREL | TLS_TPRELGD));
7947 if (offp == &htab->tlsld_got.offset)
7953 /* We might have multiple got entries for this sym.
7954 Initialize them all. */
7959 if ((tls_m & TLS_LD) != 0)
7961 tls_ty = TLS_TLS | TLS_LD;
7964 else if ((tls_m & TLS_GD) != 0)
7966 tls_ty = TLS_TLS | TLS_GD;
7969 else if ((tls_m & TLS_DTPREL) != 0)
7971 tls_ty = TLS_TLS | TLS_DTPREL;
7972 tls_m &= ~TLS_DTPREL;
7974 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
7976 tls_ty = TLS_TLS | TLS_TPREL;
7980 /* Generate relocs for the dynamic linker. */
7981 if ((info->shared || indx != 0)
7982 && (offp == &htab->tlsld_got.offset
7984 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7985 || h->root.type != bfd_link_hash_undefweak))
7987 asection *rsec = htab->relgot;
7990 outrel.r_offset = (htab->got->output_section->vma
7991 + htab->got->output_offset
7993 outrel.r_addend = 0;
7994 if (tls_ty & (TLS_LD | TLS_GD))
7996 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
7997 if (tls_ty == (TLS_TLS | TLS_GD))
7999 loc = rsec->contents;
8000 loc += (rsec->reloc_count++
8001 * sizeof (Elf32_External_Rela));
8002 bfd_elf32_swap_reloca_out (output_bfd,
8004 outrel.r_offset += 4;
8006 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8009 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8010 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8011 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8012 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
8014 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
8015 else if (ifunc != NULL)
8016 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8018 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
8019 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
8021 outrel.r_addend += relocation;
8022 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
8023 outrel.r_addend -= htab->elf.tls_sec->vma;
8025 loc = rsec->contents;
8026 loc += (rsec->reloc_count++
8027 * sizeof (Elf32_External_Rela));
8028 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
8031 /* Init the .got section contents if we're not
8032 emitting a reloc. */
8035 bfd_vma value = relocation;
8037 if (tls_ty == (TLS_TLS | TLS_LD))
8039 else if (tls_ty != 0)
8041 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
8042 if (tls_ty == (TLS_TLS | TLS_TPREL))
8043 value += DTP_OFFSET - TP_OFFSET;
8045 if (tls_ty == (TLS_TLS | TLS_GD))
8047 bfd_put_32 (output_bfd, value,
8048 htab->got->contents + off + 4);
8052 bfd_put_32 (output_bfd, value,
8053 htab->got->contents + off);
8057 if (tls_ty & (TLS_LD | TLS_GD))
8066 if (off >= (bfd_vma) -2)
8069 if ((tls_type & TLS_TLS) != 0)
8071 if (tls_type != (TLS_TLS | TLS_LD))
8073 if ((tls_mask & TLS_LD) != 0
8075 || !h->def_dynamic))
8077 if (tls_type != (TLS_TLS | TLS_GD))
8079 if ((tls_mask & TLS_GD) != 0)
8081 if (tls_type != (TLS_TLS | TLS_DTPREL))
8083 if ((tls_mask & TLS_DTPREL) != 0)
8090 relocation = (htab->got->output_section->vma
8091 + htab->got->output_offset
8093 - SYM_VAL (htab->elf.hgot));
8095 /* Addends on got relocations don't make much sense.
8096 x+off@got is actually x@got+off, and since the got is
8097 generated by a hash table traversal, the value in the
8098 got at entry m+n bears little relation to the entry m. */
8100 info->callbacks->einfo
8101 (_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
8102 input_bfd, input_section, rel->r_offset,
8108 /* Relocations that need no special processing. */
8109 case R_PPC_LOCAL24PC:
8110 /* It makes no sense to point a local relocation
8111 at a symbol not in this object. */
8112 if (unresolved_reloc)
8114 if (! (*info->callbacks->undefined_symbol) (info,
8115 h->root.root.string,
8125 case R_PPC_DTPREL16:
8126 case R_PPC_DTPREL16_LO:
8127 case R_PPC_DTPREL16_HI:
8128 case R_PPC_DTPREL16_HA:
8129 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8132 /* Relocations that may need to be propagated if this is a shared
8135 case R_PPC_TPREL16_LO:
8136 case R_PPC_TPREL16_HI:
8137 case R_PPC_TPREL16_HA:
8139 && h->root.type == bfd_link_hash_undefweak
8140 && h->dynindx == -1)
8142 /* Make this relocation against an undefined weak symbol
8143 resolve to zero. This is really just a tweak, since
8144 code using weak externs ought to check that they are
8145 defined before using them. */
8146 bfd_byte *p = contents + rel->r_offset - d_offset;
8147 unsigned int insn = bfd_get_32 (output_bfd, p);
8148 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8150 bfd_put_32 (output_bfd, insn, p);
8153 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8154 /* The TPREL16 relocs shouldn't really be used in shared
8155 libs as they will result in DT_TEXTREL being set, but
8156 support them anyway. */
8160 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8163 case R_PPC_DTPREL32:
8164 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8167 case R_PPC_DTPMOD32:
8173 case R_PPC_REL16_LO:
8174 case R_PPC_REL16_HI:
8175 case R_PPC_REL16_HA:
8179 if (h == NULL || h == htab->elf.hgot)
8185 case R_PPC_ADDR16_LO:
8186 case R_PPC_ADDR16_HI:
8187 case R_PPC_ADDR16_HA:
8192 case R_PPC_VLE_REL8:
8193 case R_PPC_VLE_REL15:
8194 case R_PPC_VLE_REL24:
8197 case R_PPC_REL14_BRTAKEN:
8198 case R_PPC_REL14_BRNTAKEN:
8199 /* If these relocations are not to a named symbol, they can be
8200 handled right here, no need to bother the dynamic linker. */
8201 if (SYMBOL_CALLS_LOCAL (info, h)
8202 || h == htab->elf.hgot)
8208 case R_PPC_ADDR14_BRTAKEN:
8209 case R_PPC_ADDR14_BRNTAKEN:
8210 if (h != NULL && !info->shared)
8215 if ((input_section->flags & SEC_ALLOC) == 0
8221 && ((h->root.type == bfd_link_hash_undefined
8222 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
8223 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
8224 || (h->root.type == bfd_link_hash_undefweak
8225 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
8226 && (must_be_dyn_reloc (info, r_type)
8227 || !SYMBOL_CALLS_LOCAL (info, h)))
8228 || (ELIMINATE_COPY_RELOCS
8233 && !h->def_regular))
8238 fprintf (stderr, "ppc_elf_relocate_section needs to "
8239 "create relocation for %s\n",
8240 (h && h->root.root.string
8241 ? h->root.root.string : "<unknown>"));
8244 /* When generating a shared object, these relocations
8245 are copied into the output file to be resolved at run
8249 sreloc = elf_section_data (input_section)->sreloc;
8250 if (!htab->elf.dynamic_sections_created)
8251 sreloc = htab->reliplt;
8257 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8260 if (outrel.r_offset == (bfd_vma) -1
8261 || outrel.r_offset == (bfd_vma) -2)
8262 skip = (int) outrel.r_offset;
8263 outrel.r_offset += (input_section->output_section->vma
8264 + input_section->output_offset);
8267 memset (&outrel, 0, sizeof outrel);
8269 && (h->root.type == bfd_link_hash_undefined
8270 || h->root.type == bfd_link_hash_undefweak))
8271 || !SYMBOL_REFERENCES_LOCAL (info, h))
8273 BFD_ASSERT (h->dynindx != -1);
8274 unresolved_reloc = FALSE;
8275 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
8276 outrel.r_addend = rel->r_addend;
8280 outrel.r_addend = relocation + rel->r_addend;
8282 if (r_type != R_PPC_ADDR32)
8288 /* If we get here when building a static
8289 executable, then the libc startup function
8290 responsible for applying indirect function
8291 relocations is going to complain about
8293 If we get here when building a dynamic
8294 executable, it will be because we have
8295 a text relocation. The dynamic loader
8296 will set the text segment writable and
8297 non-executable to apply text relocations.
8298 So we'll segfault when trying to run the
8299 indirection function to resolve the reloc. */
8300 info->callbacks->einfo
8301 (_("%P: %H: relocation %s for indirect "
8302 "function %s unsupported\n"),
8303 input_bfd, input_section, rel->r_offset,
8308 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
8310 else if (sec == NULL || sec->owner == NULL)
8312 bfd_set_error (bfd_error_bad_value);
8319 /* We are turning this relocation into one
8320 against a section symbol. It would be
8321 proper to subtract the symbol's value,
8322 osec->vma, from the emitted reloc addend,
8323 but ld.so expects buggy relocs.
8324 FIXME: Why not always use a zero index? */
8325 osec = sec->output_section;
8326 indx = elf_section_data (osec)->dynindx;
8329 osec = htab->elf.text_index_section;
8330 indx = elf_section_data (osec)->dynindx;
8332 BFD_ASSERT (indx != 0);
8335 printf ("indx=%ld section=%s flags=%08x name=%s\n",
8336 indx, osec->name, osec->flags,
8337 h->root.root.string);
8341 outrel.r_info = ELF32_R_INFO (indx, r_type);
8343 else if (ifunc != NULL)
8344 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8346 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
8349 loc = sreloc->contents;
8350 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8351 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
8356 /* This reloc will be computed at runtime. We clear the memory
8357 so that it contains predictable value. */
8359 && ((input_section->flags & SEC_ALLOC) != 0
8360 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
8362 relocation = howto->pc_relative ? outrel.r_offset : 0;
8369 case R_PPC_RELAX_PLT:
8370 case R_PPC_RELAX_PLTREL24:
8373 struct plt_entry *ent;
8374 bfd_vma got2_addend = 0;
8376 if (r_type == R_PPC_RELAX_PLTREL24)
8379 got2_addend = addend;
8382 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
8383 if (htab->plt_type == PLT_NEW)
8384 relocation = (htab->glink->output_section->vma
8385 + htab->glink->output_offset
8386 + ent->glink_offset);
8388 relocation = (htab->plt->output_section->vma
8389 + htab->plt->output_offset
8396 relocation -= (input_section->output_section->vma
8397 + input_section->output_offset
8398 + rel->r_offset - 4);
8404 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
8405 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
8407 /* We're clearing the bits for R_PPC_ADDR16_HA
8408 and R_PPC_ADDR16_LO here. */
8412 /* t0 is HA, t1 is LO */
8413 relocation += addend;
8414 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
8415 t1 |= relocation & 0xffff;
8417 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
8418 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
8420 /* Rewrite the reloc and convert one of the trailing nop
8421 relocs to describe this relocation. */
8422 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
8423 /* The relocs are at the bottom 2 bytes */
8424 rel[0].r_offset += 2;
8425 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
8426 rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
8427 rel[1].r_offset += 4;
8428 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
8433 /* Indirect .sdata relocation. */
8434 case R_PPC_EMB_SDAI16:
8435 BFD_ASSERT (htab->sdata[0].section != NULL);
8436 if (!is_static_defined (htab->sdata[0].sym))
8438 unresolved_reloc = TRUE;
8442 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
8443 h, relocation, rel);
8447 /* Indirect .sdata2 relocation. */
8448 case R_PPC_EMB_SDA2I16:
8449 BFD_ASSERT (htab->sdata[1].section != NULL);
8450 if (!is_static_defined (htab->sdata[1].sym))
8452 unresolved_reloc = TRUE;
8456 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
8457 h, relocation, rel);
8461 /* Handle the TOC16 reloc. We want to use the offset within the .got
8462 section, not the actual VMA. This is appropriate when generating
8463 an embedded ELF object, for which the .got section acts like the
8464 AIX .toc section. */
8465 case R_PPC_TOC16: /* phony GOT16 relocations */
8466 if (sec == NULL || sec->output_section == NULL)
8468 unresolved_reloc = TRUE;
8471 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
8473 || strcmp (bfd_get_section_name (sec->owner, sec),
8476 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
8479 case R_PPC_PLTREL24:
8480 if (h == NULL || ifunc != NULL)
8482 /* Relocation is to the entry for this symbol in the
8483 procedure linkage table. */
8485 struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2,
8486 info->shared ? addend : 0);
8489 || htab->plt == NULL)
8491 /* We didn't make a PLT entry for this symbol. This
8492 happens when statically linking PIC code, or when
8493 using -Bsymbolic. */
8497 unresolved_reloc = FALSE;
8498 if (htab->plt_type == PLT_NEW)
8499 relocation = (htab->glink->output_section->vma
8500 + htab->glink->output_offset
8501 + ent->glink_offset);
8503 relocation = (htab->plt->output_section->vma
8504 + htab->plt->output_offset
8509 /* Relocate against _SDA_BASE_. */
8510 case R_PPC_SDAREL16:
8513 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
8516 || sec->output_section == NULL
8517 || !is_static_defined (sda))
8519 unresolved_reloc = TRUE;
8522 addend -= SYM_VAL (sda);
8524 name = bfd_get_section_name (output_bfd, sec->output_section);
8525 if (! ((CONST_STRNEQ (name, ".sdata")
8526 && (name[6] == 0 || name[6] == '.'))
8527 || (CONST_STRNEQ (name, ".sbss")
8528 && (name[5] == 0 || name[5] == '.'))))
8530 info->callbacks->einfo
8531 (_("%P: %B: the target (%s) of a %s relocation is "
8532 "in the wrong output section (%s)\n"),
8541 /* Relocate against _SDA2_BASE_. */
8542 case R_PPC_EMB_SDA2REL:
8545 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
8548 || sec->output_section == NULL
8549 || !is_static_defined (sda))
8551 unresolved_reloc = TRUE;
8554 addend -= SYM_VAL (sda);
8556 name = bfd_get_section_name (output_bfd, sec->output_section);
8557 if (! (CONST_STRNEQ (name, ".sdata2")
8558 || CONST_STRNEQ (name, ".sbss2")))
8560 info->callbacks->einfo
8561 (_("%P: %B: the target (%s) of a %s relocation is "
8562 "in the wrong output section (%s)\n"),
8571 case R_PPC_VLE_LO16A:
8572 relocation = (relocation + addend) & 0xffff;
8573 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8574 relocation, split16a_type);
8577 case R_PPC_VLE_LO16D:
8578 relocation = (relocation + addend) & 0xffff;
8579 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8580 relocation, split16d_type);
8583 case R_PPC_VLE_HI16A:
8584 relocation = ((relocation + addend) >> 16) & 0xffff;
8585 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8586 relocation, split16a_type);
8589 case R_PPC_VLE_HI16D:
8590 relocation = ((relocation + addend) >> 16) & 0xffff;
8591 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8592 relocation, split16d_type);
8595 case R_PPC_VLE_HA16A:
8597 bfd_vma value = relocation + addend;
8598 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8599 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8600 value, split16a_type);
8604 case R_PPC_VLE_HA16D:
8606 bfd_vma value = relocation + addend;
8607 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8608 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8609 value, split16d_type);
8613 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
8614 case R_PPC_EMB_SDA21:
8615 case R_PPC_VLE_SDA21:
8616 case R_PPC_EMB_RELSDA:
8617 case R_PPC_VLE_SDA21_LO:
8621 struct elf_link_hash_entry *sda = NULL;
8623 if (sec == NULL || sec->output_section == NULL)
8625 unresolved_reloc = TRUE;
8629 name = bfd_get_section_name (output_bfd, sec->output_section);
8630 if (((CONST_STRNEQ (name, ".sdata")
8631 && (name[6] == 0 || name[6] == '.'))
8632 || (CONST_STRNEQ (name, ".sbss")
8633 && (name[5] == 0 || name[5] == '.'))))
8636 sda = htab->sdata[0].sym;
8638 else if (CONST_STRNEQ (name, ".sdata2")
8639 || CONST_STRNEQ (name, ".sbss2"))
8642 sda = htab->sdata[1].sym;
8644 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
8645 || strcmp (name, ".PPC.EMB.sbss0") == 0)
8651 info->callbacks->einfo
8652 (_("%P: %B: the target (%s) of a %s relocation is "
8653 "in the wrong output section (%s)\n"),
8659 bfd_set_error (bfd_error_bad_value);
8666 if (!is_static_defined (sda))
8668 unresolved_reloc = TRUE;
8671 addend -= SYM_VAL (sda);
8675 && (r_type == R_PPC_VLE_SDA21
8676 || r_type == R_PPC_VLE_SDA21_LO))
8678 /* Use the split20 format. */
8679 bfd_vma insn, bits12to15, bits21to31;
8680 bfd_vma value = (relocation + rel->r_offset) & 0xffff;
8681 /* Propagate sign bit, if necessary. */
8682 insn = (value & 0x8000) ? 0x70107800 : 0x70000000;
8683 bits12to15 = value & 0x700;
8684 bits21to31 = value & 0x7ff;
8687 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8690 else if (r_type == R_PPC_EMB_SDA21
8691 || r_type == R_PPC_VLE_SDA21
8692 || r_type == R_PPC_VLE_SDA21_LO)
8694 bfd_vma insn; /* Fill in register field. */
8696 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
8697 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
8698 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8703 case R_PPC_VLE_SDAREL_LO16A:
8704 case R_PPC_VLE_SDAREL_LO16D:
8705 case R_PPC_VLE_SDAREL_HI16A:
8706 case R_PPC_VLE_SDAREL_HI16D:
8707 case R_PPC_VLE_SDAREL_HA16A:
8708 case R_PPC_VLE_SDAREL_HA16D:
8713 struct elf_link_hash_entry *sda = NULL;
8715 if (sec == NULL || sec->output_section == NULL)
8717 unresolved_reloc = TRUE;
8721 name = bfd_get_section_name (output_bfd, sec->output_section);
8722 if (((CONST_STRNEQ (name, ".sdata")
8723 && (name[6] == 0 || name[6] == '.'))
8724 || (CONST_STRNEQ (name, ".sbss")
8725 && (name[5] == 0 || name[5] == '.'))))
8728 sda = htab->sdata[0].sym;
8730 else if (CONST_STRNEQ (name, ".sdata2")
8731 || CONST_STRNEQ (name, ".sbss2"))
8734 sda = htab->sdata[1].sym;
8738 (*_bfd_error_handler)
8739 (_("%B: the target (%s) of a %s relocation is "
8740 "in the wrong output section (%s)"),
8746 bfd_set_error (bfd_error_bad_value);
8753 if (!is_static_defined (sda))
8755 unresolved_reloc = TRUE;
8760 value = sda->root.u.def.section->output_section->vma
8761 + sda->root.u.def.section->output_offset;
8763 if (r_type == R_PPC_VLE_SDAREL_LO16A)
8765 value = (value + addend) & 0xffff;
8766 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8767 value, split16a_type);
8769 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
8771 value = (value + addend) & 0xffff;
8772 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8773 value, split16d_type);
8775 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
8777 value = ((value + addend) >> 16) & 0xffff;
8778 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8779 value, split16a_type);
8781 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
8783 value = ((value + addend) >> 16) & 0xffff;
8784 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8785 value, split16d_type);
8787 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
8790 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8791 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8792 value, split16a_type);
8794 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
8797 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8798 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8799 value, split16d_type);
8804 /* Relocate against the beginning of the section. */
8806 case R_PPC_SECTOFF_LO:
8807 case R_PPC_SECTOFF_HI:
8808 case R_PPC_SECTOFF_HA:
8809 if (sec == NULL || sec->output_section == NULL)
8811 unresolved_reloc = TRUE;
8814 addend -= sec->output_section->vma;
8817 /* Negative relocations. */
8818 case R_PPC_EMB_NADDR32:
8819 case R_PPC_EMB_NADDR16:
8820 case R_PPC_EMB_NADDR16_LO:
8821 case R_PPC_EMB_NADDR16_HI:
8822 case R_PPC_EMB_NADDR16_HA:
8823 addend -= 2 * relocation;
8827 case R_PPC_GLOB_DAT:
8828 case R_PPC_JMP_SLOT:
8829 case R_PPC_RELATIVE:
8830 case R_PPC_IRELATIVE:
8832 case R_PPC_PLTREL32:
8833 case R_PPC_PLT16_LO:
8834 case R_PPC_PLT16_HI:
8835 case R_PPC_PLT16_HA:
8837 case R_PPC_EMB_RELSEC16:
8838 case R_PPC_EMB_RELST_LO:
8839 case R_PPC_EMB_RELST_HI:
8840 case R_PPC_EMB_RELST_HA:
8841 case R_PPC_EMB_BIT_FLD:
8842 info->callbacks->einfo
8843 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
8848 bfd_set_error (bfd_error_invalid_operation);
8853 /* Do any further special processing. */
8859 case R_PPC_ADDR16_HA:
8860 case R_PPC_REL16_HA:
8861 case R_PPC_SECTOFF_HA:
8862 case R_PPC_TPREL16_HA:
8863 case R_PPC_DTPREL16_HA:
8864 case R_PPC_EMB_NADDR16_HA:
8865 case R_PPC_EMB_RELST_HA:
8866 /* It's just possible that this symbol is a weak symbol
8867 that's not actually defined anywhere. In that case,
8868 'sec' would be NULL, and we should leave the symbol
8869 alone (it will be set to zero elsewhere in the link). */
8874 case R_PPC_PLT16_HA:
8875 case R_PPC_GOT16_HA:
8876 case R_PPC_GOT_TLSGD16_HA:
8877 case R_PPC_GOT_TLSLD16_HA:
8878 case R_PPC_GOT_TPREL16_HA:
8879 case R_PPC_GOT_DTPREL16_HA:
8880 /* Add 0x10000 if sign bit in 0:15 is set.
8881 Bits 0:15 are not used. */
8886 case R_PPC_ADDR16_LO:
8888 case R_PPC_GOT16_LO:
8889 case R_PPC_SDAREL16:
8891 case R_PPC_SECTOFF_LO:
8892 case R_PPC_DTPREL16:
8893 case R_PPC_DTPREL16_LO:
8895 case R_PPC_TPREL16_LO:
8896 case R_PPC_GOT_TLSGD16:
8897 case R_PPC_GOT_TLSGD16_LO:
8898 case R_PPC_GOT_TLSLD16:
8899 case R_PPC_GOT_TLSLD16_LO:
8900 case R_PPC_GOT_DTPREL16:
8901 case R_PPC_GOT_DTPREL16_LO:
8902 case R_PPC_GOT_TPREL16:
8903 case R_PPC_GOT_TPREL16_LO:
8905 /* The 32-bit ABI lacks proper relocations to deal with
8906 certain 64-bit instructions. Prevent damage to bits
8907 that make up part of the insn opcode. */
8908 unsigned int insn, mask, lobit;
8910 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
8912 if (is_insn_ds_form (insn))
8914 else if (is_insn_dq_form (insn))
8918 lobit = mask & (relocation + addend);
8922 info->callbacks->einfo
8923 (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
8924 input_bfd, input_section, rel->r_offset,
8925 howto->name, sym_name, mask + 1);
8926 bfd_set_error (bfd_error_bad_value);
8929 addend += insn & mask;
8935 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
8936 "offset = %ld, addend = %ld\n",
8941 (long) rel->r_offset,
8945 if (unresolved_reloc
8946 && !((input_section->flags & SEC_DEBUGGING) != 0
8948 && _bfd_elf_section_offset (output_bfd, info, input_section,
8949 rel->r_offset) != (bfd_vma) -1)
8951 info->callbacks->einfo
8952 (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
8953 input_bfd, input_section, rel->r_offset,
8959 r = _bfd_final_link_relocate (howto,
8967 if (r != bfd_reloc_ok)
8969 if (r == bfd_reloc_overflow)
8974 && h->root.type == bfd_link_hash_undefweak
8975 && howto->pc_relative)
8977 /* Assume this is a call protected by other code that
8978 detect the symbol is undefined. If this is the case,
8979 we can safely ignore the overflow. If not, the
8980 program is hosed anyway, and a little warning isn't
8986 if (! (*info->callbacks->reloc_overflow) (info,
8987 (h ? &h->root : NULL),
8998 info->callbacks->einfo
8999 (_("%P: %H: %s reloc against `%s': error %d\n"),
9000 input_bfd, input_section, rel->r_offset,
9001 howto->name, sym_name, (int) r);
9008 fprintf (stderr, "\n");
9014 /* Finish up dynamic symbol handling. We set the contents of various
9015 dynamic sections here. */
9018 ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
9019 struct bfd_link_info *info,
9020 struct elf_link_hash_entry *h,
9021 Elf_Internal_Sym *sym)
9023 struct ppc_elf_link_hash_table *htab;
9024 struct plt_entry *ent;
9025 bfd_boolean doneone;
9028 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
9029 h->root.root.string);
9032 htab = ppc_elf_hash_table (info);
9033 BFD_ASSERT (htab->elf.dynobj != NULL);
9036 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
9037 if (ent->plt.offset != (bfd_vma) -1)
9041 Elf_Internal_Rela rela;
9043 bfd_vma reloc_index;
9045 if (htab->plt_type == PLT_NEW
9046 || !htab->elf.dynamic_sections_created
9047 || h->dynindx == -1)
9048 reloc_index = ent->plt.offset / 4;
9051 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
9052 / htab->plt_slot_size);
9053 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
9054 && htab->plt_type == PLT_OLD)
9055 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
9058 /* This symbol has an entry in the procedure linkage table.
9060 if (htab->plt_type == PLT_VXWORKS
9061 && htab->elf.dynamic_sections_created
9062 && h->dynindx != -1)
9065 const bfd_vma *plt_entry;
9067 /* The first three entries in .got.plt are reserved. */
9068 got_offset = (reloc_index + 3) * 4;
9070 /* Use the right PLT. */
9071 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
9072 : ppc_elf_vxworks_plt_entry;
9074 /* Fill in the .plt on VxWorks. */
9077 bfd_put_32 (output_bfd,
9078 plt_entry[0] | PPC_HA (got_offset),
9079 htab->plt->contents + ent->plt.offset + 0);
9080 bfd_put_32 (output_bfd,
9081 plt_entry[1] | PPC_LO (got_offset),
9082 htab->plt->contents + ent->plt.offset + 4);
9086 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9088 bfd_put_32 (output_bfd,
9089 plt_entry[0] | PPC_HA (got_loc),
9090 htab->plt->contents + ent->plt.offset + 0);
9091 bfd_put_32 (output_bfd,
9092 plt_entry[1] | PPC_LO (got_loc),
9093 htab->plt->contents + ent->plt.offset + 4);
9096 bfd_put_32 (output_bfd, plt_entry[2],
9097 htab->plt->contents + ent->plt.offset + 8);
9098 bfd_put_32 (output_bfd, plt_entry[3],
9099 htab->plt->contents + ent->plt.offset + 12);
9101 /* This instruction is an immediate load. The value loaded is
9102 the byte offset of the R_PPC_JMP_SLOT relocation from the
9103 start of the .rela.plt section. The value is stored in the
9104 low-order 16 bits of the load instruction. */
9105 /* NOTE: It appears that this is now an index rather than a
9106 prescaled offset. */
9107 bfd_put_32 (output_bfd,
9108 plt_entry[4] | reloc_index,
9109 htab->plt->contents + ent->plt.offset + 16);
9110 /* This instruction is a PC-relative branch whose target is
9111 the start of the PLT section. The address of this branch
9112 instruction is 20 bytes beyond the start of this PLT entry.
9113 The address is encoded in bits 6-29, inclusive. The value
9114 stored is right-shifted by two bits, permitting a 26-bit
9116 bfd_put_32 (output_bfd,
9118 | (-(ent->plt.offset + 20) & 0x03fffffc)),
9119 htab->plt->contents + ent->plt.offset + 20);
9120 bfd_put_32 (output_bfd, plt_entry[6],
9121 htab->plt->contents + ent->plt.offset + 24);
9122 bfd_put_32 (output_bfd, plt_entry[7],
9123 htab->plt->contents + ent->plt.offset + 28);
9125 /* Fill in the GOT entry corresponding to this PLT slot with
9126 the address immediately after the "bctr" instruction
9127 in this PLT entry. */
9128 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
9129 + htab->plt->output_offset
9130 + ent->plt.offset + 16),
9131 htab->sgotplt->contents + got_offset);
9135 /* Fill in a couple of entries in .rela.plt.unloaded. */
9136 loc = htab->srelplt2->contents
9137 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
9138 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
9139 * sizeof (Elf32_External_Rela));
9141 /* Provide the @ha relocation for the first instruction. */
9142 rela.r_offset = (htab->plt->output_section->vma
9143 + htab->plt->output_offset
9144 + ent->plt.offset + 2);
9145 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9147 rela.r_addend = got_offset;
9148 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9149 loc += sizeof (Elf32_External_Rela);
9151 /* Provide the @l relocation for the second instruction. */
9152 rela.r_offset = (htab->plt->output_section->vma
9153 + htab->plt->output_offset
9154 + ent->plt.offset + 6);
9155 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9157 rela.r_addend = got_offset;
9158 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9159 loc += sizeof (Elf32_External_Rela);
9161 /* Provide a relocation for the GOT entry corresponding to this
9162 PLT slot. Point it at the middle of the .plt entry. */
9163 rela.r_offset = (htab->sgotplt->output_section->vma
9164 + htab->sgotplt->output_offset
9166 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9168 rela.r_addend = ent->plt.offset + 16;
9169 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9172 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
9173 In particular, the offset for the relocation is not the
9174 address of the PLT entry for this function, as specified
9175 by the ABI. Instead, the offset is set to the address of
9176 the GOT slot for this function. See EABI 4.4.4.1. */
9177 rela.r_offset = (htab->sgotplt->output_section->vma
9178 + htab->sgotplt->output_offset
9184 asection *splt = htab->plt;
9185 if (!htab->elf.dynamic_sections_created
9186 || h->dynindx == -1)
9189 rela.r_offset = (splt->output_section->vma
9190 + splt->output_offset
9192 if (htab->plt_type == PLT_OLD
9193 || !htab->elf.dynamic_sections_created
9194 || h->dynindx == -1)
9196 /* We don't need to fill in the .plt. The ppc dynamic
9197 linker will fill it in. */
9201 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
9202 + htab->glink->output_section->vma
9203 + htab->glink->output_offset);
9204 bfd_put_32 (output_bfd, val,
9205 splt->contents + ent->plt.offset);
9209 /* Fill in the entry in the .rela.plt section. */
9211 if (!htab->elf.dynamic_sections_created
9212 || h->dynindx == -1)
9214 BFD_ASSERT (h->type == STT_GNU_IFUNC
9216 && (h->root.type == bfd_link_hash_defined
9217 || h->root.type == bfd_link_hash_defweak));
9218 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
9219 rela.r_addend = SYM_VAL (h);
9222 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
9224 if (!htab->elf.dynamic_sections_created
9225 || h->dynindx == -1)
9226 loc = (htab->reliplt->contents
9227 + (htab->reliplt->reloc_count++
9228 * sizeof (Elf32_External_Rela)));
9230 loc = (htab->relplt->contents
9231 + reloc_index * sizeof (Elf32_External_Rela));
9232 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9234 if (!h->def_regular)
9236 /* Mark the symbol as undefined, rather than as
9237 defined in the .plt section. Leave the value if
9238 there were any relocations where pointer equality
9239 matters (this is a clue for the dynamic linker, to
9240 make function pointer comparisons work between an
9241 application and shared library), otherwise set it
9243 sym->st_shndx = SHN_UNDEF;
9244 if (!h->pointer_equality_needed)
9246 else if (!h->ref_regular_nonweak)
9248 /* This breaks function pointer comparisons, but
9249 that is better than breaking tests for a NULL
9250 function pointer. */
9254 else if (h->type == STT_GNU_IFUNC
9257 /* Set the value of ifunc symbols in a non-pie
9258 executable to the glink entry. This is to avoid
9259 text relocations. We can't do this for ifunc in
9260 allocate_dynrelocs, as we do for normal dynamic
9261 function symbols with plt entries, because we need
9262 to keep the original value around for the ifunc
9264 sym->st_shndx = (_bfd_elf_section_from_bfd_section
9265 (output_bfd, htab->glink->output_section));
9266 sym->st_value = (ent->glink_offset
9267 + htab->glink->output_offset
9268 + htab->glink->output_section->vma);
9273 if (htab->plt_type == PLT_NEW
9274 || !htab->elf.dynamic_sections_created
9275 || h->dynindx == -1)
9278 asection *splt = htab->plt;
9279 if (!htab->elf.dynamic_sections_created
9280 || h->dynindx == -1)
9283 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
9285 if (h == htab->tls_get_addr && !htab->no_tls_get_addr_opt)
9287 bfd_put_32 (output_bfd, LWZ_11_3, p);
9289 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
9291 bfd_put_32 (output_bfd, MR_0_3, p);
9293 bfd_put_32 (output_bfd, CMPWI_11_0, p);
9295 bfd_put_32 (output_bfd, ADD_3_12_2, p);
9297 bfd_put_32 (output_bfd, BEQLR, p);
9299 bfd_put_32 (output_bfd, MR_3_0, p);
9301 bfd_put_32 (output_bfd, NOP, p);
9305 write_glink_stub (ent, splt, p, info);
9308 /* We only need one non-PIC glink stub. */
9318 Elf_Internal_Rela rela;
9321 /* This symbols needs a copy reloc. Set it up. */
9324 fprintf (stderr, ", copy");
9327 BFD_ASSERT (h->dynindx != -1);
9329 if (ppc_elf_hash_entry (h)->has_sda_refs)
9333 BFD_ASSERT (s != NULL);
9335 rela.r_offset = SYM_VAL (h);
9336 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
9338 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
9339 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9343 fprintf (stderr, "\n");
9349 static enum elf_reloc_type_class
9350 ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
9352 switch (ELF32_R_TYPE (rela->r_info))
9354 case R_PPC_RELATIVE:
9355 return reloc_class_relative;
9358 case R_PPC_JMP_SLOT:
9359 return reloc_class_plt;
9361 return reloc_class_copy;
9363 return reloc_class_normal;
9367 /* Finish up the dynamic sections. */
9370 ppc_elf_finish_dynamic_sections (bfd *output_bfd,
9371 struct bfd_link_info *info)
9375 struct ppc_elf_link_hash_table *htab;
9378 bfd_boolean ret = TRUE;
9381 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
9384 htab = ppc_elf_hash_table (info);
9385 dynobj = elf_hash_table (info)->dynobj;
9386 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
9387 if (htab->is_vxworks)
9388 splt = bfd_get_linker_section (dynobj, ".plt");
9393 if (htab->elf.hgot != NULL)
9394 got = SYM_VAL (htab->elf.hgot);
9396 if (htab->elf.dynamic_sections_created)
9398 Elf32_External_Dyn *dyncon, *dynconend;
9400 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
9402 dyncon = (Elf32_External_Dyn *) sdyn->contents;
9403 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
9404 for (; dyncon < dynconend; dyncon++)
9406 Elf_Internal_Dyn dyn;
9409 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
9414 if (htab->is_vxworks)
9418 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9422 dyn.d_un.d_val = htab->relplt->size;
9427 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9431 dyn.d_un.d_ptr = got;
9435 if (htab->is_vxworks)
9438 dyn.d_un.d_ptr -= htab->relplt->size;
9444 if (htab->is_vxworks
9445 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
9450 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
9454 if (htab->got != NULL)
9456 if (htab->elf.hgot->root.u.def.section == htab->got
9457 || htab->elf.hgot->root.u.def.section == htab->sgotplt)
9459 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
9461 p += htab->elf.hgot->root.u.def.value;
9462 if (htab->plt_type == PLT_OLD)
9464 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
9465 so that a function can easily find the address of
9466 _GLOBAL_OFFSET_TABLE_. */
9467 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
9468 < htab->elf.hgot->root.u.def.section->size);
9469 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
9474 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
9475 BFD_ASSERT (htab->elf.hgot->root.u.def.value
9476 < htab->elf.hgot->root.u.def.section->size);
9477 bfd_put_32 (output_bfd, val, p);
9482 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
9483 htab->elf.hgot->root.root.string,
9484 (htab->sgotplt != NULL
9485 ? htab->sgotplt->name : htab->got->name));
9486 bfd_set_error (bfd_error_bad_value);
9490 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
9493 /* Fill in the first entry in the VxWorks procedure linkage table. */
9494 if (splt && splt->size > 0)
9496 /* Use the right PLT. */
9497 const bfd_vma *plt_entry = (info->shared
9498 ? ppc_elf_vxworks_pic_plt0_entry
9499 : ppc_elf_vxworks_plt0_entry);
9503 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9505 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9506 splt->contents + 0);
9507 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9508 splt->contents + 4);
9512 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
9513 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
9515 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
9516 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
9517 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
9518 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
9519 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
9520 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
9524 Elf_Internal_Rela rela;
9527 loc = htab->srelplt2->contents;
9529 /* Output the @ha relocation for the first instruction. */
9530 rela.r_offset = (htab->plt->output_section->vma
9531 + htab->plt->output_offset
9533 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9535 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9536 loc += sizeof (Elf32_External_Rela);
9538 /* Output the @l relocation for the second instruction. */
9539 rela.r_offset = (htab->plt->output_section->vma
9540 + htab->plt->output_offset
9542 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9544 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9545 loc += sizeof (Elf32_External_Rela);
9547 /* Fix up the remaining relocations. They may have the wrong
9548 symbol index for _G_O_T_ or _P_L_T_ depending on the order
9549 in which symbols were output. */
9550 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
9552 Elf_Internal_Rela rel;
9554 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9555 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9556 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9557 loc += sizeof (Elf32_External_Rela);
9559 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9560 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9561 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9562 loc += sizeof (Elf32_External_Rela);
9564 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9565 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9566 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9567 loc += sizeof (Elf32_External_Rela);
9572 if (htab->glink != NULL
9573 && htab->glink->contents != NULL
9574 && htab->elf.dynamic_sections_created)
9577 unsigned char *endp;
9582 * PIC glink code is the following:
9584 * # ith PLT code stub.
9585 * addis 11,30,(plt+(i-1)*4-got)@ha
9586 * lwz 11,(plt+(i-1)*4-got)@l(11)
9590 * # A table of branches, one for each plt entry.
9591 * # The idea is that the plt call stub loads ctr and r11 with these
9592 * # addresses, so (r11 - res_0) gives the plt index * 4.
9593 * res_0: b PLTresolve
9594 * res_1: b PLTresolve
9596 * # Some number of entries towards the end can be nops
9602 * addis 11,11,(1f-res_0)@ha
9605 * 1: addi 11,11,(1b-res_0)@l
9608 * sub 11,11,12 # r11 = index * 4
9609 * addis 12,12,(got+4-1b)@ha
9610 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
9611 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
9614 * add 11,0,11 # r11 = index * 12 = reloc offset.
9617 static const unsigned int pic_plt_resolve[] =
9638 * Non-PIC glink code is a little simpler.
9640 * # ith PLT code stub.
9641 * lis 11,(plt+(i-1)*4)@ha
9642 * lwz 11,(plt+(i-1)*4)@l(11)
9646 * The branch table is the same, then comes
9650 * addis 11,11,(-res_0)@ha
9651 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
9652 * addi 11,11,(-res_0)@l # r11 = index * 4
9655 * lwz 12,(got+8)@l(12) # got[2] contains the map address
9656 * add 11,0,11 # r11 = index * 12 = reloc offset.
9659 static const unsigned int plt_resolve[] =
9679 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
9681 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
9684 /* Build the branch table, one for each plt entry (less one),
9685 and perhaps some padding. */
9686 p = htab->glink->contents;
9687 p += htab->glink_pltresolve;
9688 endp = htab->glink->contents;
9689 endp += htab->glink->size - GLINK_PLTRESOLVE;
9690 while (p < endp - 8 * 4)
9692 bfd_put_32 (output_bfd, B + endp - p, p);
9697 bfd_put_32 (output_bfd, NOP, p);
9701 res0 = (htab->glink_pltresolve
9702 + htab->glink->output_section->vma
9703 + htab->glink->output_offset);
9705 /* Last comes the PLTresolve stub. */
9710 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
9712 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
9715 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
9717 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
9718 + htab->glink->output_section->vma
9719 + htab->glink->output_offset);
9721 bfd_put_32 (output_bfd,
9722 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
9723 bfd_put_32 (output_bfd,
9724 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
9725 bfd_put_32 (output_bfd,
9726 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
9727 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
9729 bfd_put_32 (output_bfd,
9730 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
9731 bfd_put_32 (output_bfd,
9732 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
9736 bfd_put_32 (output_bfd,
9737 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
9738 bfd_put_32 (output_bfd,
9739 LWZ_12_12 + 4, p + 9*4);
9744 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
9746 bfd_put_32 (output_bfd, plt_resolve[i], p);
9749 p -= 4 * ARRAY_SIZE (plt_resolve);
9751 bfd_put_32 (output_bfd,
9752 LIS_12 + PPC_HA (got + 4), p + 0*4);
9753 bfd_put_32 (output_bfd,
9754 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
9755 bfd_put_32 (output_bfd,
9756 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
9757 if (PPC_HA (got + 4) == PPC_HA (got + 8))
9759 bfd_put_32 (output_bfd,
9760 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
9761 bfd_put_32 (output_bfd,
9762 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
9766 bfd_put_32 (output_bfd,
9767 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
9768 bfd_put_32 (output_bfd,
9769 LWZ_12_12 + 4, p + 6*4);
9774 if (htab->glink_eh_frame != NULL
9775 && htab->glink_eh_frame->contents != NULL)
9777 unsigned char *p = htab->glink_eh_frame->contents;
9780 p += sizeof (glink_eh_frame_cie);
9785 /* Offset to .glink. */
9786 val = (htab->glink->output_section->vma
9787 + htab->glink->output_offset);
9788 val -= (htab->glink_eh_frame->output_section->vma
9789 + htab->glink_eh_frame->output_offset);
9790 val -= p - htab->glink_eh_frame->contents;
9791 bfd_put_32 (htab->elf.dynobj, val, p);
9793 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
9794 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
9795 htab->glink_eh_frame,
9796 htab->glink_eh_frame->contents))
9803 #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
9804 #define TARGET_LITTLE_NAME "elf32-powerpcle"
9805 #define TARGET_BIG_SYM bfd_elf32_powerpc_vec
9806 #define TARGET_BIG_NAME "elf32-powerpc"
9807 #define ELF_ARCH bfd_arch_powerpc
9808 #define ELF_TARGET_ID PPC32_ELF_DATA
9809 #define ELF_MACHINE_CODE EM_PPC
9810 #ifdef __QNXTARGET__
9811 #define ELF_MAXPAGESIZE 0x1000
9813 #define ELF_MAXPAGESIZE 0x10000
9815 #define ELF_MINPAGESIZE 0x1000
9816 #define ELF_COMMONPAGESIZE 0x1000
9817 #define elf_info_to_howto ppc_elf_info_to_howto
9819 #ifdef EM_CYGNUS_POWERPC
9820 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
9824 #define ELF_MACHINE_ALT2 EM_PPC_OLD
9827 #define elf_backend_plt_not_loaded 1
9828 #define elf_backend_can_gc_sections 1
9829 #define elf_backend_can_refcount 1
9830 #define elf_backend_rela_normal 1
9832 #define bfd_elf32_mkobject ppc_elf_mkobject
9833 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
9834 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
9835 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
9836 #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
9837 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
9838 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
9839 #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
9841 #define elf_backend_object_p ppc_elf_object_p
9842 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
9843 #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
9844 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
9845 #define elf_backend_relocate_section ppc_elf_relocate_section
9846 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
9847 #define elf_backend_check_relocs ppc_elf_check_relocs
9848 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
9849 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
9850 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
9851 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
9852 #define elf_backend_hash_symbol ppc_elf_hash_symbol
9853 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
9854 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
9855 #define elf_backend_fake_sections ppc_elf_fake_sections
9856 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
9857 #define elf_backend_modify_segment_map ppc_elf_modify_segment_map
9858 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
9859 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
9860 #define elf_backend_write_core_note ppc_elf_write_core_note
9861 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
9862 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
9863 #define elf_backend_final_write_processing ppc_elf_final_write_processing
9864 #define elf_backend_write_section ppc_elf_write_section
9865 #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
9866 #define elf_backend_plt_sym_val ppc_elf_plt_sym_val
9867 #define elf_backend_action_discarded ppc_elf_action_discarded
9868 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
9869 #define elf_backend_post_process_headers _bfd_elf_set_osabi
9870 #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
9871 #define elf_backend_section_processing ppc_elf_section_processing
9873 #include "elf32-target.h"
9875 /* FreeBSD Target */
9877 #undef TARGET_LITTLE_SYM
9878 #undef TARGET_LITTLE_NAME
9880 #undef TARGET_BIG_SYM
9881 #define TARGET_BIG_SYM bfd_elf32_powerpc_freebsd_vec
9882 #undef TARGET_BIG_NAME
9883 #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
9886 #define ELF_OSABI ELFOSABI_FREEBSD
9889 #define elf32_bed elf32_powerpc_fbsd_bed
9891 #include "elf32-target.h"
9893 /* VxWorks Target */
9895 #undef TARGET_LITTLE_SYM
9896 #undef TARGET_LITTLE_NAME
9898 #undef TARGET_BIG_SYM
9899 #define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
9900 #undef TARGET_BIG_NAME
9901 #define TARGET_BIG_NAME "elf32-powerpc-vxworks"
9905 /* VxWorks uses the elf default section flags for .plt. */
9906 static const struct bfd_elf_special_section *
9907 ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9909 if (sec->name == NULL)
9912 if (strcmp (sec->name, ".plt") == 0)
9913 return _bfd_elf_get_sec_type_attr (abfd, sec);
9915 return ppc_elf_get_sec_type_attr (abfd, sec);
9918 /* Like ppc_elf_link_hash_table_create, but overrides
9919 appropriately for VxWorks. */
9920 static struct bfd_link_hash_table *
9921 ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
9923 struct bfd_link_hash_table *ret;
9925 ret = ppc_elf_link_hash_table_create (abfd);
9928 struct ppc_elf_link_hash_table *htab
9929 = (struct ppc_elf_link_hash_table *)ret;
9930 htab->is_vxworks = 1;
9931 htab->plt_type = PLT_VXWORKS;
9932 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
9933 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
9934 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
9939 /* Tweak magic VxWorks symbols as they are loaded. */
9941 ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
9942 struct bfd_link_info *info,
9943 Elf_Internal_Sym *sym,
9944 const char **namep ATTRIBUTE_UNUSED,
9945 flagword *flagsp ATTRIBUTE_UNUSED,
9949 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
9953 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
9957 ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
9959 ppc_elf_final_write_processing(abfd, linker);
9960 elf_vxworks_final_write_processing(abfd, linker);
9963 /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
9965 #undef elf_backend_want_plt_sym
9966 #define elf_backend_want_plt_sym 1
9967 #undef elf_backend_want_got_plt
9968 #define elf_backend_want_got_plt 1
9969 #undef elf_backend_got_symbol_offset
9970 #define elf_backend_got_symbol_offset 0
9971 #undef elf_backend_plt_not_loaded
9972 #define elf_backend_plt_not_loaded 0
9973 #undef elf_backend_plt_readonly
9974 #define elf_backend_plt_readonly 1
9975 #undef elf_backend_got_header_size
9976 #define elf_backend_got_header_size 12
9978 #undef bfd_elf32_get_synthetic_symtab
9980 #undef bfd_elf32_bfd_link_hash_table_create
9981 #define bfd_elf32_bfd_link_hash_table_create \
9982 ppc_elf_vxworks_link_hash_table_create
9983 #undef elf_backend_add_symbol_hook
9984 #define elf_backend_add_symbol_hook \
9985 ppc_elf_vxworks_add_symbol_hook
9986 #undef elf_backend_link_output_symbol_hook
9987 #define elf_backend_link_output_symbol_hook \
9988 elf_vxworks_link_output_symbol_hook
9989 #undef elf_backend_final_write_processing
9990 #define elf_backend_final_write_processing \
9991 ppc_elf_vxworks_final_write_processing
9992 #undef elf_backend_get_sec_type_attr
9993 #define elf_backend_get_sec_type_attr \
9994 ppc_elf_vxworks_get_sec_type_attr
9995 #undef elf_backend_emit_relocs
9996 #define elf_backend_emit_relocs \
9997 elf_vxworks_emit_relocs
10000 #define elf32_bed ppc_elf_vxworks_bed
10001 #undef elf_backend_post_process_headers
10003 #include "elf32-target.h"
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