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 struct plt_entry **ifunc;
3928 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
3929 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
3934 /* STT_GNU_IFUNC symbols must have a PLT entry;
3935 In a non-pie executable even when there are
3938 || is_branch_reloc (r_type))
3941 if (r_type == R_PPC_PLTREL24)
3943 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3945 addend = rel->r_addend;
3947 if (!update_plt_info (abfd, ifunc, got2, addend))
3953 if (!htab->is_vxworks
3954 && is_branch_reloc (r_type)
3959 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
3960 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
3961 /* We have a new-style __tls_get_addr call with a marker
3965 /* Mark this section as having an old-style call. */
3966 sec->has_tls_get_addr_call = 1;
3973 /* These special tls relocs tie a call to __tls_get_addr with
3974 its parameter symbol. */
3977 case R_PPC_GOT_TLSLD16:
3978 case R_PPC_GOT_TLSLD16_LO:
3979 case R_PPC_GOT_TLSLD16_HI:
3980 case R_PPC_GOT_TLSLD16_HA:
3981 tls_type = TLS_TLS | TLS_LD;
3984 case R_PPC_GOT_TLSGD16:
3985 case R_PPC_GOT_TLSGD16_LO:
3986 case R_PPC_GOT_TLSGD16_HI:
3987 case R_PPC_GOT_TLSGD16_HA:
3988 tls_type = TLS_TLS | TLS_GD;
3991 case R_PPC_GOT_TPREL16:
3992 case R_PPC_GOT_TPREL16_LO:
3993 case R_PPC_GOT_TPREL16_HI:
3994 case R_PPC_GOT_TPREL16_HA:
3995 if (!info->executable)
3996 info->flags |= DF_STATIC_TLS;
3997 tls_type = TLS_TLS | TLS_TPREL;
4000 case R_PPC_GOT_DTPREL16:
4001 case R_PPC_GOT_DTPREL16_LO:
4002 case R_PPC_GOT_DTPREL16_HI:
4003 case R_PPC_GOT_DTPREL16_HA:
4004 tls_type = TLS_TLS | TLS_DTPREL;
4006 sec->has_tls_reloc = 1;
4009 /* GOT16 relocations */
4011 case R_PPC_GOT16_LO:
4012 case R_PPC_GOT16_HI:
4013 case R_PPC_GOT16_HA:
4014 /* This symbol requires a global offset table entry. */
4015 if (htab->got == NULL)
4017 if (htab->elf.dynobj == NULL)
4018 htab->elf.dynobj = abfd;
4019 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4024 h->got.refcount += 1;
4025 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4028 /* This is a global offset table entry for a local symbol. */
4029 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4032 /* We may also need a plt entry if the symbol turns out to be
4034 if (h != NULL && !info->shared)
4036 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4041 /* Indirect .sdata relocation. */
4042 case R_PPC_EMB_SDAI16:
4045 bad_shared_reloc (abfd, r_type);
4048 if (htab->sdata[0].section == NULL
4049 && !ppc_elf_create_linker_section (abfd, info, 0,
4052 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
4057 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4058 h->non_got_ref = TRUE;
4062 /* Indirect .sdata2 relocation. */
4063 case R_PPC_EMB_SDA2I16:
4066 bad_shared_reloc (abfd, r_type);
4069 if (htab->sdata[1].section == NULL
4070 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
4073 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
4078 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4079 h->non_got_ref = TRUE;
4083 case R_PPC_VLE_SDAREL_LO16A:
4084 case R_PPC_VLE_SDAREL_LO16D:
4085 case R_PPC_VLE_SDAREL_HI16A:
4086 case R_PPC_VLE_SDAREL_HI16D:
4087 case R_PPC_VLE_SDAREL_HA16A:
4088 case R_PPC_VLE_SDAREL_HA16D:
4089 case R_PPC_SDAREL16:
4090 if (htab->sdata[0].sym == NULL
4091 && !create_sdata_sym (info, &htab->sdata[0]))
4094 if (htab->sdata[1].sym == NULL
4095 && !create_sdata_sym (info, &htab->sdata[1]))
4100 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4101 h->non_got_ref = TRUE;
4105 case R_PPC_VLE_REL8:
4106 case R_PPC_VLE_REL15:
4107 case R_PPC_VLE_REL24:
4108 case R_PPC_VLE_LO16A:
4109 case R_PPC_VLE_LO16D:
4110 case R_PPC_VLE_HI16A:
4111 case R_PPC_VLE_HI16D:
4112 case R_PPC_VLE_HA16A:
4113 case R_PPC_VLE_HA16D:
4116 case R_PPC_EMB_SDA2REL:
4119 bad_shared_reloc (abfd, r_type);
4122 if (htab->sdata[1].sym == NULL
4123 && !create_sdata_sym (info, &htab->sdata[1]))
4127 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4128 h->non_got_ref = TRUE;
4132 case R_PPC_VLE_SDA21_LO:
4133 case R_PPC_VLE_SDA21:
4134 case R_PPC_EMB_SDA21:
4135 case R_PPC_EMB_RELSDA:
4138 bad_shared_reloc (abfd, r_type);
4141 if (htab->sdata[0].sym == NULL
4142 && !create_sdata_sym (info, &htab->sdata[0]))
4144 if (htab->sdata[1].sym == NULL
4145 && !create_sdata_sym (info, &htab->sdata[1]))
4149 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4150 h->non_got_ref = TRUE;
4154 case R_PPC_EMB_NADDR32:
4155 case R_PPC_EMB_NADDR16:
4156 case R_PPC_EMB_NADDR16_LO:
4157 case R_PPC_EMB_NADDR16_HI:
4158 case R_PPC_EMB_NADDR16_HA:
4161 bad_shared_reloc (abfd, r_type);
4165 h->non_got_ref = TRUE;
4168 case R_PPC_PLTREL24:
4173 case R_PPC_PLTREL32:
4174 case R_PPC_PLT16_LO:
4175 case R_PPC_PLT16_HI:
4176 case R_PPC_PLT16_HA:
4178 fprintf (stderr, "Reloc requires a PLT entry\n");
4180 /* This symbol requires a procedure linkage table entry. We
4181 actually build the entry in finish_dynamic_symbol,
4182 because this might be a case of linking PIC code without
4183 linking in any dynamic objects, in which case we don't
4184 need to generate a procedure linkage table after all. */
4188 /* It does not make sense to have a procedure linkage
4189 table entry for a local symbol. */
4190 info->callbacks->einfo (_("%P: %H: %s reloc against local symbol\n"),
4191 abfd, sec, rel->r_offset,
4192 ppc_elf_howto_table[r_type]->name);
4193 bfd_set_error (bfd_error_bad_value);
4200 if (r_type == R_PPC_PLTREL24)
4202 ppc_elf_tdata (abfd)->makes_plt_call = 1;
4204 addend = rel->r_addend;
4207 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
4212 /* The following relocations don't need to propagate the
4213 relocation if linking a shared object since they are
4214 section relative. */
4216 case R_PPC_SECTOFF_LO:
4217 case R_PPC_SECTOFF_HI:
4218 case R_PPC_SECTOFF_HA:
4219 case R_PPC_DTPREL16:
4220 case R_PPC_DTPREL16_LO:
4221 case R_PPC_DTPREL16_HI:
4222 case R_PPC_DTPREL16_HA:
4227 case R_PPC_REL16_LO:
4228 case R_PPC_REL16_HI:
4229 case R_PPC_REL16_HA:
4230 ppc_elf_tdata (abfd)->has_rel16 = 1;
4233 /* These are just markers. */
4235 case R_PPC_EMB_MRKREF:
4239 case R_PPC_RELAX_PLT:
4240 case R_PPC_RELAX_PLTREL24:
4243 /* These should only appear in dynamic objects. */
4245 case R_PPC_GLOB_DAT:
4246 case R_PPC_JMP_SLOT:
4247 case R_PPC_RELATIVE:
4248 case R_PPC_IRELATIVE:
4251 /* These aren't handled yet. We'll report an error later. */
4253 case R_PPC_EMB_RELSEC16:
4254 case R_PPC_EMB_RELST_LO:
4255 case R_PPC_EMB_RELST_HI:
4256 case R_PPC_EMB_RELST_HA:
4257 case R_PPC_EMB_BIT_FLD:
4260 /* This refers only to functions defined in the shared library. */
4261 case R_PPC_LOCAL24PC:
4262 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
4264 htab->plt_type = PLT_OLD;
4265 htab->old_bfd = abfd;
4269 /* This relocation describes the C++ object vtable hierarchy.
4270 Reconstruct it for later use during GC. */
4271 case R_PPC_GNU_VTINHERIT:
4272 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4276 /* This relocation describes which C++ vtable entries are actually
4277 used. Record for later use during GC. */
4278 case R_PPC_GNU_VTENTRY:
4279 BFD_ASSERT (h != NULL);
4281 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4285 /* We shouldn't really be seeing these. */
4288 case R_PPC_TPREL16_LO:
4289 case R_PPC_TPREL16_HI:
4290 case R_PPC_TPREL16_HA:
4291 if (!info->executable)
4292 info->flags |= DF_STATIC_TLS;
4296 case R_PPC_DTPMOD32:
4297 case R_PPC_DTPREL32:
4303 && (sec->flags & SEC_CODE) != 0
4305 && htab->plt_type == PLT_UNSET)
4307 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4308 the start of a function, which assembles to a REL32
4309 reference to .got2. If we detect one of these, then
4310 force the old PLT layout because the linker cannot
4311 reliably deduce the GOT pointer value needed for
4314 Elf_Internal_Sym *isym;
4316 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4321 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4324 htab->plt_type = PLT_OLD;
4325 htab->old_bfd = abfd;
4328 if (h == NULL || h == htab->elf.hgot)
4334 case R_PPC_ADDR16_LO:
4335 case R_PPC_ADDR16_HI:
4336 case R_PPC_ADDR16_HA:
4339 if (h != NULL && !info->shared)
4341 /* We may need a plt entry if the symbol turns out to be
4342 a function defined in a dynamic object. */
4343 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4346 /* We may need a copy reloc too. */
4348 h->pointer_equality_needed = 1;
4354 case R_PPC_REL14_BRTAKEN:
4355 case R_PPC_REL14_BRNTAKEN:
4358 if (h == htab->elf.hgot)
4360 if (htab->plt_type == PLT_UNSET)
4362 htab->plt_type = PLT_OLD;
4363 htab->old_bfd = abfd;
4371 case R_PPC_ADDR14_BRTAKEN:
4372 case R_PPC_ADDR14_BRNTAKEN:
4373 if (h != NULL && !info->shared)
4375 /* We may need a plt entry if the symbol turns out to be
4376 a function defined in a dynamic object. */
4378 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4384 /* If we are creating a shared library, and this is a reloc
4385 against a global symbol, or a non PC relative reloc
4386 against a local symbol, then we need to copy the reloc
4387 into the shared library. However, if we are linking with
4388 -Bsymbolic, we do not need to copy a reloc against a
4389 global symbol which is defined in an object we are
4390 including in the link (i.e., DEF_REGULAR is set). At
4391 this point we have not seen all the input files, so it is
4392 possible that DEF_REGULAR is not set now but will be set
4393 later (it is never cleared). In case of a weak definition,
4394 DEF_REGULAR may be cleared later by a strong definition in
4395 a shared library. We account for that possibility below by
4396 storing information in the dyn_relocs field of the hash
4397 table entry. A similar situation occurs when creating
4398 shared libraries and symbol visibility changes render the
4401 If on the other hand, we are creating an executable, we
4402 may need to keep relocations for symbols satisfied by a
4403 dynamic library if we manage to avoid copy relocs for the
4406 && (must_be_dyn_reloc (info, r_type)
4408 && (! info->symbolic
4409 || h->root.type == bfd_link_hash_defweak
4410 || !h->def_regular))))
4411 || (ELIMINATE_COPY_RELOCS
4414 && (h->root.type == bfd_link_hash_defweak
4415 || !h->def_regular)))
4417 struct elf_dyn_relocs *p;
4418 struct elf_dyn_relocs **rel_head;
4422 "ppc_elf_check_relocs needs to "
4423 "create relocation for %s\n",
4424 (h && h->root.root.string
4425 ? h->root.root.string : "<unknown>"));
4429 if (htab->elf.dynobj == NULL)
4430 htab->elf.dynobj = abfd;
4432 sreloc = _bfd_elf_make_dynamic_reloc_section
4433 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4439 /* If this is a global symbol, we count the number of
4440 relocations we need for this symbol. */
4443 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
4447 /* Track dynamic relocs needed for local syms too.
4448 We really need local syms available to do this
4452 Elf_Internal_Sym *isym;
4454 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4459 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4463 vpp = &elf_section_data (s)->local_dynrel;
4464 rel_head = (struct elf_dyn_relocs **) vpp;
4468 if (p == NULL || p->sec != sec)
4470 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4473 p->next = *rel_head;
4481 if (!must_be_dyn_reloc (info, r_type))
4493 /* Merge object attributes from IBFD into OBFD. Raise an error if
4494 there are conflicting attributes. */
4496 ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
4498 obj_attribute *in_attr, *in_attrs;
4499 obj_attribute *out_attr, *out_attrs;
4501 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4503 /* This is the first object. Copy the attributes. */
4504 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4506 /* Use the Tag_null value to indicate the attributes have been
4508 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4513 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4514 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4516 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
4517 non-conflicting ones. */
4518 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4519 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
4520 if (in_attr->i != out_attr->i)
4523 if (out_attr->i == 0)
4524 out_attr->i = in_attr->i;
4525 else if (in_attr->i == 0)
4527 else if (out_attr->i == 1 && in_attr->i == 2)
4529 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
4530 else if (out_attr->i == 1 && in_attr->i == 3)
4532 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4534 else if (out_attr->i == 3 && in_attr->i == 1)
4536 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4538 else if (out_attr->i == 3 && in_attr->i == 2)
4540 (_("Warning: %B uses soft float, %B uses single-precision hard float"),
4542 else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3))
4544 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
4545 else if (in_attr->i > 3)
4547 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
4551 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
4555 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4556 merge non-conflicting ones. */
4557 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4558 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4559 if (in_attr->i != out_attr->i)
4561 const char *in_abi = NULL, *out_abi = NULL;
4565 case 1: in_abi = "generic"; break;
4566 case 2: in_abi = "AltiVec"; break;
4567 case 3: in_abi = "SPE"; break;
4570 switch (out_attr->i)
4572 case 1: out_abi = "generic"; break;
4573 case 2: out_abi = "AltiVec"; break;
4574 case 3: out_abi = "SPE"; break;
4578 if (out_attr->i == 0)
4579 out_attr->i = in_attr->i;
4580 else if (in_attr->i == 0)
4582 /* For now, allow generic to transition to AltiVec or SPE
4583 without a warning. If GCC marked files with their stack
4584 alignment and used don't-care markings for files which are
4585 not affected by the vector ABI, we could warn about this
4587 else if (out_attr->i == 1)
4588 out_attr->i = in_attr->i;
4589 else if (in_attr->i == 1)
4591 else if (in_abi == NULL)
4593 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
4595 else if (out_abi == NULL)
4597 (_("Warning: %B uses unknown vector ABI %d"), obfd,
4601 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
4602 ibfd, obfd, in_abi, out_abi);
4605 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4606 and merge non-conflicting ones. */
4607 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4608 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4609 if (in_attr->i != out_attr->i)
4612 if (out_attr->i == 0)
4613 out_attr->i = in_attr->i;
4614 else if (in_attr->i == 0)
4616 else if (out_attr->i == 1 && in_attr->i == 2)
4618 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd);
4619 else if (out_attr->i == 2 && in_attr->i == 1)
4621 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd);
4622 else if (in_attr->i > 2)
4624 (_("Warning: %B uses unknown small structure return convention %d"), ibfd,
4628 (_("Warning: %B uses unknown small structure return convention %d"), obfd,
4632 /* Merge Tag_compatibility attributes and any common GNU ones. */
4633 _bfd_elf_merge_object_attributes (ibfd, obfd);
4638 /* Merge backend specific data from an object file to the output
4639 object file when linking. */
4642 ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4648 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
4651 /* Check if we have the same endianness. */
4652 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
4655 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
4658 new_flags = elf_elfheader (ibfd)->e_flags;
4659 old_flags = elf_elfheader (obfd)->e_flags;
4660 if (!elf_flags_init (obfd))
4662 /* First call, no flags set. */
4663 elf_flags_init (obfd) = TRUE;
4664 elf_elfheader (obfd)->e_flags = new_flags;
4667 /* Compatible flags are ok. */
4668 else if (new_flags == old_flags)
4671 /* Incompatible flags. */
4674 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4675 to be linked with either. */
4677 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4678 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4681 (*_bfd_error_handler)
4682 (_("%B: compiled with -mrelocatable and linked with "
4683 "modules compiled normally"), ibfd);
4685 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4686 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4689 (*_bfd_error_handler)
4690 (_("%B: compiled normally and linked with "
4691 "modules compiled with -mrelocatable"), ibfd);
4694 /* The output is -mrelocatable-lib iff both the input files are. */
4695 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4696 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4698 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4699 but each input file is either -mrelocatable or -mrelocatable-lib. */
4700 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4701 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4702 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4703 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4705 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4706 any module uses it. */
4707 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4709 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4710 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4712 /* Warn about any other mismatches. */
4713 if (new_flags != old_flags)
4716 (*_bfd_error_handler)
4717 (_("%B: uses different e_flags (0x%lx) fields "
4718 "than previous modules (0x%lx)"),
4719 ibfd, (long) new_flags, (long) old_flags);
4724 bfd_set_error (bfd_error_bad_value);
4733 ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *contents,
4734 bfd_vma offset, bfd_vma relocation,
4735 split16_format_type split16_format)
4738 bfd_vma insn, top5, bottom11;
4740 insn = bfd_get_32 (output_bfd, contents + offset);
4741 top5 = relocation >> 11;
4742 top5 = top5 << (split16_format == split16a_type ? 20 : 16);
4743 bottom11 = relocation & 0x7ff;
4746 bfd_put_32 (output_bfd, insn, contents + offset);
4750 /* Choose which PLT scheme to use, and set .plt flags appropriately.
4751 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4753 ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
4754 struct bfd_link_info *info,
4755 enum ppc_elf_plt_type plt_style,
4758 struct ppc_elf_link_hash_table *htab;
4761 htab = ppc_elf_hash_table (info);
4763 htab->emit_stub_syms = emit_stub_syms;
4765 if (htab->plt_type == PLT_UNSET)
4767 struct elf_link_hash_entry *h;
4769 if (plt_style == PLT_OLD)
4770 htab->plt_type = PLT_OLD;
4771 else if (info->shared
4772 && htab->elf.dynamic_sections_created
4773 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
4774 FALSE, FALSE, TRUE)) != NULL
4775 && (h->type == STT_FUNC
4778 && !(SYMBOL_CALLS_LOCAL (info, h)
4779 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4780 && h->root.type == bfd_link_hash_undefweak)))
4782 /* Profiling of shared libs (and pies) is not supported with
4783 secure plt, because ppc32 does profiling before a
4784 function prologue and a secure plt pic call stubs needs
4785 r30 to be set up. */
4786 htab->plt_type = PLT_OLD;
4791 enum ppc_elf_plt_type plt_type = plt_style;
4793 /* Look through the reloc flags left by ppc_elf_check_relocs.
4794 Use the old style bss plt if a file makes plt calls
4795 without using the new relocs, and if ld isn't given
4796 --secure-plt and we never see REL16 relocs. */
4797 if (plt_type == PLT_UNSET)
4799 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
4800 if (is_ppc_elf (ibfd))
4802 if (ppc_elf_tdata (ibfd)->has_rel16)
4804 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
4807 htab->old_bfd = ibfd;
4811 htab->plt_type = plt_type;
4814 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
4816 if (htab->old_bfd != NULL)
4817 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
4820 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
4823 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
4825 if (htab->plt_type == PLT_NEW)
4827 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
4828 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4830 /* The new PLT is a loaded section. */
4831 if (htab->plt != NULL
4832 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
4835 /* The new GOT is not executable. */
4836 if (htab->got != NULL
4837 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
4842 /* Stop an unused .glink section from affecting .text alignment. */
4843 if (htab->glink != NULL
4844 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
4847 return htab->plt_type == PLT_NEW;
4850 /* Return the section that should be marked against GC for a given
4854 ppc_elf_gc_mark_hook (asection *sec,
4855 struct bfd_link_info *info,
4856 Elf_Internal_Rela *rel,
4857 struct elf_link_hash_entry *h,
4858 Elf_Internal_Sym *sym)
4861 switch (ELF32_R_TYPE (rel->r_info))
4863 case R_PPC_GNU_VTINHERIT:
4864 case R_PPC_GNU_VTENTRY:
4868 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4871 /* Update the got, plt and dynamic reloc reference counts for the
4872 section being removed. */
4875 ppc_elf_gc_sweep_hook (bfd *abfd,
4876 struct bfd_link_info *info,
4878 const Elf_Internal_Rela *relocs)
4880 struct ppc_elf_link_hash_table *htab;
4881 Elf_Internal_Shdr *symtab_hdr;
4882 struct elf_link_hash_entry **sym_hashes;
4883 bfd_signed_vma *local_got_refcounts;
4884 const Elf_Internal_Rela *rel, *relend;
4887 if (info->relocatable)
4890 if ((sec->flags & SEC_ALLOC) == 0)
4893 elf_section_data (sec)->local_dynrel = NULL;
4895 htab = ppc_elf_hash_table (info);
4896 symtab_hdr = &elf_symtab_hdr (abfd);
4897 sym_hashes = elf_sym_hashes (abfd);
4898 local_got_refcounts = elf_local_got_refcounts (abfd);
4899 got2 = bfd_get_section_by_name (abfd, ".got2");
4901 relend = relocs + sec->reloc_count;
4902 for (rel = relocs; rel < relend; rel++)
4904 unsigned long r_symndx;
4905 enum elf_ppc_reloc_type r_type;
4906 struct elf_link_hash_entry *h = NULL;
4908 r_symndx = ELF32_R_SYM (rel->r_info);
4909 if (r_symndx >= symtab_hdr->sh_info)
4911 struct elf_dyn_relocs **pp, *p;
4912 struct ppc_elf_link_hash_entry *eh;
4914 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4915 while (h->root.type == bfd_link_hash_indirect
4916 || h->root.type == bfd_link_hash_warning)
4917 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4918 eh = (struct ppc_elf_link_hash_entry *) h;
4920 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4923 /* Everything must go for SEC. */
4929 r_type = ELF32_R_TYPE (rel->r_info);
4930 if (!htab->is_vxworks
4932 && local_got_refcounts != NULL
4934 || is_branch_reloc (r_type)))
4936 struct plt_entry **local_plt = (struct plt_entry **)
4937 (local_got_refcounts + symtab_hdr->sh_info);
4938 char *local_got_tls_masks = (char *)
4939 (local_plt + symtab_hdr->sh_info);
4940 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
4942 struct plt_entry **ifunc = local_plt + r_symndx;
4944 struct plt_entry *ent;
4946 if (r_type == R_PPC_PLTREL24 && info->shared)
4947 addend = rel->r_addend;
4948 ent = find_plt_ent (ifunc, got2, addend);
4949 if (ent->plt.refcount > 0)
4950 ent->plt.refcount -= 1;
4957 case R_PPC_GOT_TLSLD16:
4958 case R_PPC_GOT_TLSLD16_LO:
4959 case R_PPC_GOT_TLSLD16_HI:
4960 case R_PPC_GOT_TLSLD16_HA:
4961 case R_PPC_GOT_TLSGD16:
4962 case R_PPC_GOT_TLSGD16_LO:
4963 case R_PPC_GOT_TLSGD16_HI:
4964 case R_PPC_GOT_TLSGD16_HA:
4965 case R_PPC_GOT_TPREL16:
4966 case R_PPC_GOT_TPREL16_LO:
4967 case R_PPC_GOT_TPREL16_HI:
4968 case R_PPC_GOT_TPREL16_HA:
4969 case R_PPC_GOT_DTPREL16:
4970 case R_PPC_GOT_DTPREL16_LO:
4971 case R_PPC_GOT_DTPREL16_HI:
4972 case R_PPC_GOT_DTPREL16_HA:
4974 case R_PPC_GOT16_LO:
4975 case R_PPC_GOT16_HI:
4976 case R_PPC_GOT16_HA:
4979 if (h->got.refcount > 0)
4983 struct plt_entry *ent;
4985 ent = find_plt_ent (&h->plt.plist, NULL, 0);
4986 if (ent != NULL && ent->plt.refcount > 0)
4987 ent->plt.refcount -= 1;
4990 else if (local_got_refcounts != NULL)
4992 if (local_got_refcounts[r_symndx] > 0)
4993 local_got_refcounts[r_symndx]--;
4999 case R_PPC_REL14_BRTAKEN:
5000 case R_PPC_REL14_BRNTAKEN:
5002 if (h == NULL || h == htab->elf.hgot)
5009 case R_PPC_ADDR16_LO:
5010 case R_PPC_ADDR16_HI:
5011 case R_PPC_ADDR16_HA:
5013 case R_PPC_ADDR14_BRTAKEN:
5014 case R_PPC_ADDR14_BRNTAKEN:
5021 case R_PPC_PLTREL24:
5022 case R_PPC_PLTREL32:
5023 case R_PPC_PLT16_LO:
5024 case R_PPC_PLT16_HI:
5025 case R_PPC_PLT16_HA:
5029 struct plt_entry *ent;
5031 if (r_type == R_PPC_PLTREL24 && info->shared)
5032 addend = rel->r_addend;
5033 ent = find_plt_ent (&h->plt.plist, got2, addend);
5034 if (ent != NULL && ent->plt.refcount > 0)
5035 ent->plt.refcount -= 1;
5046 /* Set plt output section type, htab->tls_get_addr, and call the
5047 generic ELF tls_setup function. */
5050 ppc_elf_tls_setup (bfd *obfd,
5051 struct bfd_link_info *info,
5052 int no_tls_get_addr_opt)
5054 struct ppc_elf_link_hash_table *htab;
5056 htab = ppc_elf_hash_table (info);
5057 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5058 FALSE, FALSE, TRUE);
5059 if (!no_tls_get_addr_opt)
5061 struct elf_link_hash_entry *opt, *tga;
5062 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5063 FALSE, FALSE, TRUE);
5065 && (opt->root.type == bfd_link_hash_defined
5066 || opt->root.type == bfd_link_hash_defweak))
5068 /* If glibc supports an optimized __tls_get_addr call stub,
5069 signalled by the presence of __tls_get_addr_opt, and we'll
5070 be calling __tls_get_addr via a plt call stub, then
5071 make __tls_get_addr point to __tls_get_addr_opt. */
5072 tga = htab->tls_get_addr;
5073 if (htab->elf.dynamic_sections_created
5075 && (tga->type == STT_FUNC
5077 && !(SYMBOL_CALLS_LOCAL (info, tga)
5078 || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
5079 && tga->root.type == bfd_link_hash_undefweak)))
5081 struct plt_entry *ent;
5082 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5083 if (ent->plt.refcount > 0)
5087 tga->root.type = bfd_link_hash_indirect;
5088 tga->root.u.i.link = &opt->root;
5089 ppc_elf_copy_indirect_symbol (info, opt, tga);
5090 if (opt->dynindx != -1)
5092 /* Use __tls_get_addr_opt in dynamic relocations. */
5094 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5096 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5099 htab->tls_get_addr = opt;
5104 no_tls_get_addr_opt = TRUE;
5106 htab->no_tls_get_addr_opt = no_tls_get_addr_opt;
5107 if (htab->plt_type == PLT_NEW
5108 && htab->plt != NULL
5109 && htab->plt->output_section != NULL)
5111 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
5112 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
5115 return _bfd_elf_tls_setup (obfd, info);
5118 /* Return TRUE iff REL is a branch reloc with a global symbol matching
5122 branch_reloc_hash_match (const bfd *ibfd,
5123 const Elf_Internal_Rela *rel,
5124 const struct elf_link_hash_entry *hash)
5126 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5127 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5128 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5130 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
5132 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5133 struct elf_link_hash_entry *h;
5135 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5136 while (h->root.type == bfd_link_hash_indirect
5137 || h->root.type == bfd_link_hash_warning)
5138 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5145 /* Run through all the TLS relocs looking for optimization
5149 ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5150 struct bfd_link_info *info)
5154 struct ppc_elf_link_hash_table *htab;
5157 if (info->relocatable || !info->executable)
5160 htab = ppc_elf_hash_table (info);
5164 /* Make two passes through the relocs. First time check that tls
5165 relocs involved in setting up a tls_get_addr call are indeed
5166 followed by such a call. If they are not, don't do any tls
5167 optimization. On the second pass twiddle tls_mask flags to
5168 notify relocate_section that optimization can be done, and
5169 adjust got and plt refcounts. */
5170 for (pass = 0; pass < 2; ++pass)
5171 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5173 Elf_Internal_Sym *locsyms = NULL;
5174 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5175 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
5177 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5178 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5180 Elf_Internal_Rela *relstart, *rel, *relend;
5181 int expecting_tls_get_addr = 0;
5183 /* Read the relocations. */
5184 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5186 if (relstart == NULL)
5189 relend = relstart + sec->reloc_count;
5190 for (rel = relstart; rel < relend; rel++)
5192 enum elf_ppc_reloc_type r_type;
5193 unsigned long r_symndx;
5194 struct elf_link_hash_entry *h = NULL;
5196 char tls_set, tls_clear;
5197 bfd_boolean is_local;
5198 bfd_signed_vma *got_count;
5200 r_symndx = ELF32_R_SYM (rel->r_info);
5201 if (r_symndx >= symtab_hdr->sh_info)
5203 struct elf_link_hash_entry **sym_hashes;
5205 sym_hashes = elf_sym_hashes (ibfd);
5206 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5207 while (h->root.type == bfd_link_hash_indirect
5208 || h->root.type == bfd_link_hash_warning)
5209 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5217 r_type = ELF32_R_TYPE (rel->r_info);
5218 /* If this section has old-style __tls_get_addr calls
5219 without marker relocs, then check that each
5220 __tls_get_addr call reloc is preceded by a reloc
5221 that conceivably belongs to the __tls_get_addr arg
5222 setup insn. If we don't find matching arg setup
5223 relocs, don't do any tls optimization. */
5225 && sec->has_tls_get_addr_call
5227 && h == htab->tls_get_addr
5228 && !expecting_tls_get_addr
5229 && is_branch_reloc (r_type))
5231 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
5232 "TLS optimization disabled\n",
5233 ibfd, sec, rel->r_offset);
5234 if (elf_section_data (sec)->relocs != relstart)
5239 expecting_tls_get_addr = 0;
5242 case R_PPC_GOT_TLSLD16:
5243 case R_PPC_GOT_TLSLD16_LO:
5244 expecting_tls_get_addr = 1;
5247 case R_PPC_GOT_TLSLD16_HI:
5248 case R_PPC_GOT_TLSLD16_HA:
5249 /* These relocs should never be against a symbol
5250 defined in a shared lib. Leave them alone if
5251 that turns out to be the case. */
5260 case R_PPC_GOT_TLSGD16:
5261 case R_PPC_GOT_TLSGD16_LO:
5262 expecting_tls_get_addr = 1;
5265 case R_PPC_GOT_TLSGD16_HI:
5266 case R_PPC_GOT_TLSGD16_HA:
5272 tls_set = TLS_TLS | TLS_TPRELGD;
5276 case R_PPC_GOT_TPREL16:
5277 case R_PPC_GOT_TPREL16_LO:
5278 case R_PPC_GOT_TPREL16_HI:
5279 case R_PPC_GOT_TPREL16_HA:
5284 tls_clear = TLS_TPREL;
5292 expecting_tls_get_addr = 2;
5303 if (!expecting_tls_get_addr
5304 || (expecting_tls_get_addr == 1
5305 && !sec->has_tls_get_addr_call))
5308 if (rel + 1 < relend
5309 && branch_reloc_hash_match (ibfd, rel + 1,
5310 htab->tls_get_addr))
5313 /* Uh oh, we didn't find the expected call. We
5314 could just mark this symbol to exclude it
5315 from tls optimization but it's safer to skip
5316 the entire optimization. */
5317 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
5318 "TLS optimization disabled\n"),
5319 ibfd, sec, rel->r_offset);
5320 if (elf_section_data (sec)->relocs != relstart)
5325 if (expecting_tls_get_addr)
5327 struct plt_entry *ent;
5331 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5332 addend = rel[1].r_addend;
5333 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5335 if (ent != NULL && ent->plt.refcount > 0)
5336 ent->plt.refcount -= 1;
5338 if (expecting_tls_get_addr == 2)
5344 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5345 got_count = &h->got.refcount;
5349 bfd_signed_vma *lgot_refs;
5350 struct plt_entry **local_plt;
5353 if (locsyms == NULL)
5355 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5356 if (locsyms == NULL)
5357 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5358 symtab_hdr->sh_info,
5359 0, NULL, NULL, NULL);
5360 if (locsyms == NULL)
5362 if (elf_section_data (sec)->relocs != relstart)
5367 lgot_refs = elf_local_got_refcounts (ibfd);
5368 if (lgot_refs == NULL)
5370 local_plt = (struct plt_entry **)
5371 (lgot_refs + symtab_hdr->sh_info);
5372 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
5373 tls_mask = &lgot_masks[r_symndx];
5374 got_count = &lgot_refs[r_symndx];
5379 /* We managed to get rid of a got entry. */
5384 *tls_mask |= tls_set;
5385 *tls_mask &= ~tls_clear;
5388 if (elf_section_data (sec)->relocs != relstart)
5393 && (symtab_hdr->contents != (unsigned char *) locsyms))
5395 if (!info->keep_memory)
5398 symtab_hdr->contents = (unsigned char *) locsyms;
5404 /* Return true if we have dynamic relocs that apply to read-only sections. */
5407 readonly_dynrelocs (struct elf_link_hash_entry *h)
5409 struct elf_dyn_relocs *p;
5411 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5413 asection *s = p->sec->output_section;
5416 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5417 == (SEC_READONLY | SEC_ALLOC)))
5423 /* Adjust a symbol defined by a dynamic object and referenced by a
5424 regular object. The current definition is in some section of the
5425 dynamic object, but we're not including those sections. We have to
5426 change the definition to something the rest of the link can
5430 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5431 struct elf_link_hash_entry *h)
5433 struct ppc_elf_link_hash_table *htab;
5437 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5438 h->root.root.string);
5441 /* Make sure we know what is going on here. */
5442 htab = ppc_elf_hash_table (info);
5443 BFD_ASSERT (htab->elf.dynobj != NULL
5445 || h->type == STT_GNU_IFUNC
5446 || h->u.weakdef != NULL
5449 && !h->def_regular)));
5451 /* Deal with function syms. */
5452 if (h->type == STT_FUNC
5453 || h->type == STT_GNU_IFUNC
5456 /* Clear procedure linkage table information for any symbol that
5457 won't need a .plt entry. */
5458 struct plt_entry *ent;
5459 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5460 if (ent->plt.refcount > 0)
5463 || (h->type != STT_GNU_IFUNC
5464 && (SYMBOL_CALLS_LOCAL (info, h)
5465 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5466 && h->root.type == bfd_link_hash_undefweak))))
5468 /* A PLT entry is not required/allowed when:
5470 1. We are not using ld.so; because then the PLT entry
5471 can't be set up, so we can't use one. In this case,
5472 ppc_elf_adjust_dynamic_symbol won't even be called.
5474 2. GC has rendered the entry unused.
5476 3. We know for certain that a call to this symbol
5477 will go to this object, or will remain undefined. */
5478 h->plt.plist = NULL;
5483 /* After adjust_dynamic_symbol, non_got_ref set in the
5484 non-shared case means that we have allocated space in
5485 .dynbss for the symbol and thus dyn_relocs for this
5486 symbol should be discarded.
5487 If we get here we know we are making a PLT entry for this
5488 symbol, and in an executable we'd normally resolve
5489 relocations against this symbol to the PLT entry. Allow
5490 dynamic relocs if the reference is weak, and the dynamic
5491 relocs will not cause text relocation. */
5492 if (!h->ref_regular_nonweak
5494 && h->type != STT_GNU_IFUNC
5495 && !htab->is_vxworks
5496 && !ppc_elf_hash_entry (h)->has_sda_refs
5497 && !readonly_dynrelocs (h))
5503 h->plt.plist = NULL;
5505 /* If this is a weak symbol, and there is a real definition, the
5506 processor independent code will have arranged for us to see the
5507 real definition first, and we can just use the same value. */
5508 if (h->u.weakdef != NULL)
5510 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5511 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5512 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5513 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5514 if (ELIMINATE_COPY_RELOCS)
5515 h->non_got_ref = h->u.weakdef->non_got_ref;
5519 /* This is a reference to a symbol defined by a dynamic object which
5520 is not a function. */
5522 /* If we are creating a shared library, we must presume that the
5523 only references to the symbol are via the global offset table.
5524 For such cases we need not do anything here; the relocations will
5525 be handled correctly by relocate_section. */
5529 /* If there are no references to this symbol that do not use the
5530 GOT, we don't need to generate a copy reloc. */
5531 if (!h->non_got_ref)
5534 /* If we didn't find any dynamic relocs in read-only sections, then
5535 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5536 We can't do this if there are any small data relocations. This
5537 doesn't work on VxWorks, where we can not have dynamic
5538 relocations (other than copy and jump slot relocations) in an
5540 if (ELIMINATE_COPY_RELOCS
5541 && !ppc_elf_hash_entry (h)->has_sda_refs
5542 && !htab->is_vxworks
5544 && !readonly_dynrelocs (h))
5550 /* We must allocate the symbol in our .dynbss section, which will
5551 become part of the .bss section of the executable. There will be
5552 an entry for this symbol in the .dynsym section. The dynamic
5553 object will contain position independent code, so all references
5554 from the dynamic object to this symbol will go through the global
5555 offset table. The dynamic linker will use the .dynsym entry to
5556 determine the address it must put in the global offset table, so
5557 both the dynamic object and the regular object will refer to the
5558 same memory location for the variable.
5560 Of course, if the symbol is referenced using SDAREL relocs, we
5561 must instead allocate it in .sbss. */
5563 if (ppc_elf_hash_entry (h)->has_sda_refs)
5567 BFD_ASSERT (s != NULL);
5569 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5570 copy the initial value out of the dynamic object and into the
5571 runtime process image. We need to remember the offset into the
5572 .rela.bss section we are going to use. */
5573 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
5577 if (ppc_elf_hash_entry (h)->has_sda_refs)
5578 srel = htab->relsbss;
5580 srel = htab->relbss;
5581 BFD_ASSERT (srel != NULL);
5582 srel->size += sizeof (Elf32_External_Rela);
5586 return _bfd_elf_adjust_dynamic_copy (h, s);
5589 /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5590 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5591 specifying the addend on the plt relocation. For -fpic code, the sym
5592 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5593 xxxxxxxx.got2.plt_pic32.<callee>. */
5596 add_stub_sym (struct plt_entry *ent,
5597 struct elf_link_hash_entry *h,
5598 struct bfd_link_info *info)
5600 struct elf_link_hash_entry *sh;
5601 size_t len1, len2, len3;
5604 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5607 stub = ".plt_pic32.";
5609 stub = ".plt_call32.";
5611 len1 = strlen (h->root.root.string);
5612 len2 = strlen (stub);
5615 len3 = strlen (ent->sec->name);
5616 name = bfd_malloc (len1 + len2 + len3 + 9);
5619 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5621 memcpy (name + 8, ent->sec->name, len3);
5622 memcpy (name + 8 + len3, stub, len2);
5623 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
5624 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5627 if (sh->root.type == bfd_link_hash_new)
5629 sh->root.type = bfd_link_hash_defined;
5630 sh->root.u.def.section = htab->glink;
5631 sh->root.u.def.value = ent->glink_offset;
5632 sh->ref_regular = 1;
5633 sh->def_regular = 1;
5634 sh->ref_regular_nonweak = 1;
5635 sh->forced_local = 1;
5641 /* Allocate NEED contiguous space in .got, and return the offset.
5642 Handles allocation of the got header when crossing 32k. */
5645 allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5648 unsigned int max_before_header;
5650 if (htab->plt_type == PLT_VXWORKS)
5652 where = htab->got->size;
5653 htab->got->size += need;
5657 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5658 if (need <= htab->got_gap)
5660 where = max_before_header - htab->got_gap;
5661 htab->got_gap -= need;
5665 if (htab->got->size + need > max_before_header
5666 && htab->got->size <= max_before_header)
5668 htab->got_gap = max_before_header - htab->got->size;
5669 htab->got->size = max_before_header + htab->got_header_size;
5671 where = htab->got->size;
5672 htab->got->size += need;
5678 /* Allocate space in associated reloc sections for dynamic relocs. */
5681 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5683 struct bfd_link_info *info = inf;
5684 struct ppc_elf_link_hash_entry *eh;
5685 struct ppc_elf_link_hash_table *htab;
5686 struct elf_dyn_relocs *p;
5688 if (h->root.type == bfd_link_hash_indirect)
5691 htab = ppc_elf_hash_table (info);
5692 if (htab->elf.dynamic_sections_created
5693 || h->type == STT_GNU_IFUNC)
5695 struct plt_entry *ent;
5696 bfd_boolean doneone = FALSE;
5697 bfd_vma plt_offset = 0, glink_offset = 0;
5700 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5701 if (ent->plt.refcount > 0)
5703 /* Make sure this symbol is output as a dynamic symbol. */
5704 if (h->dynindx == -1
5707 && htab->elf.dynamic_sections_created)
5709 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5713 dyn = htab->elf.dynamic_sections_created;
5715 || h->type == STT_GNU_IFUNC
5716 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5718 asection *s = htab->plt;
5719 if (!dyn || h->dynindx == -1)
5722 if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
5726 plt_offset = s->size;
5729 ent->plt.offset = plt_offset;
5732 if (!doneone || info->shared)
5734 glink_offset = s->size;
5735 s->size += GLINK_ENTRY_SIZE;
5736 if (h == htab->tls_get_addr
5737 && !htab->no_tls_get_addr_opt)
5738 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
5745 h->root.u.def.section = s;
5746 h->root.u.def.value = glink_offset;
5748 ent->glink_offset = glink_offset;
5750 if (htab->emit_stub_syms
5751 && !add_stub_sym (ent, h, info))
5758 /* If this is the first .plt entry, make room
5759 for the special first entry. */
5761 s->size += htab->plt_initial_entry_size;
5763 /* The PowerPC PLT is actually composed of two
5764 parts, the first part is 2 words (for a load
5765 and a jump), and then there is a remaining
5766 word available at the end. */
5767 plt_offset = (htab->plt_initial_entry_size
5768 + (htab->plt_slot_size
5770 - htab->plt_initial_entry_size)
5771 / htab->plt_entry_size)));
5773 /* If this symbol is not defined in a regular
5774 file, and we are not generating a shared
5775 library, then set the symbol to this location
5776 in the .plt. This is to avoid text
5777 relocations, and is required to make
5778 function pointers compare as equal between
5779 the normal executable and the shared library. */
5784 h->root.u.def.section = s;
5785 h->root.u.def.value = plt_offset;
5788 /* Make room for this entry. */
5789 s->size += htab->plt_entry_size;
5790 /* After the 8192nd entry, room for two entries
5792 if (htab->plt_type == PLT_OLD
5793 && (s->size - htab->plt_initial_entry_size)
5794 / htab->plt_entry_size
5795 > PLT_NUM_SINGLE_ENTRIES)
5796 s->size += htab->plt_entry_size;
5798 ent->plt.offset = plt_offset;
5801 /* We also need to make an entry in the .rela.plt section. */
5804 if (!htab->elf.dynamic_sections_created
5805 || h->dynindx == -1)
5806 htab->reliplt->size += sizeof (Elf32_External_Rela);
5809 htab->relplt->size += sizeof (Elf32_External_Rela);
5811 if (htab->plt_type == PLT_VXWORKS)
5813 /* Allocate space for the unloaded relocations. */
5815 && htab->elf.dynamic_sections_created)
5818 == (bfd_vma) htab->plt_initial_entry_size)
5820 htab->srelplt2->size
5821 += (sizeof (Elf32_External_Rela)
5822 * VXWORKS_PLTRESOLVE_RELOCS);
5825 htab->srelplt2->size
5826 += (sizeof (Elf32_External_Rela)
5827 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
5830 /* Every PLT entry has an associated GOT entry in
5832 htab->sgotplt->size += 4;
5839 ent->plt.offset = (bfd_vma) -1;
5842 ent->plt.offset = (bfd_vma) -1;
5846 h->plt.plist = NULL;
5852 h->plt.plist = NULL;
5856 eh = (struct ppc_elf_link_hash_entry *) h;
5857 if (eh->elf.got.refcount > 0)
5862 /* Make sure this symbol is output as a dynamic symbol. */
5863 if (eh->elf.dynindx == -1
5864 && !eh->elf.forced_local
5865 && eh->elf.type != STT_GNU_IFUNC
5866 && htab->elf.dynamic_sections_created)
5868 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
5873 if ((eh->tls_mask & TLS_TLS) != 0)
5875 if ((eh->tls_mask & TLS_LD) != 0)
5877 if (!eh->elf.def_dynamic)
5878 /* We'll just use htab->tlsld_got.offset. This should
5879 always be the case. It's a little odd if we have
5880 a local dynamic reloc against a non-local symbol. */
5881 htab->tlsld_got.refcount += 1;
5885 if ((eh->tls_mask & TLS_GD) != 0)
5887 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
5889 if ((eh->tls_mask & TLS_DTPREL) != 0)
5895 eh->elf.got.offset = (bfd_vma) -1;
5898 eh->elf.got.offset = allocate_got (htab, need);
5899 dyn = htab->elf.dynamic_sections_created;
5901 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
5902 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
5903 || eh->elf.root.type != bfd_link_hash_undefweak))
5905 asection *rsec = htab->relgot;
5907 if (eh->elf.type == STT_GNU_IFUNC)
5908 rsec = htab->reliplt;
5909 /* All the entries we allocated need relocs.
5910 Except LD only needs one. */
5911 if ((eh->tls_mask & TLS_LD) != 0
5912 && eh->elf.def_dynamic)
5914 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
5919 eh->elf.got.offset = (bfd_vma) -1;
5921 if (eh->dyn_relocs == NULL
5922 || !htab->elf.dynamic_sections_created)
5925 /* In the shared -Bsymbolic case, discard space allocated for
5926 dynamic pc-relative relocs against symbols which turn out to be
5927 defined in regular objects. For the normal shared case, discard
5928 space for relocs that have become local due to symbol visibility
5933 /* Relocs that use pc_count are those that appear on a call insn,
5934 or certain REL relocs (see must_be_dyn_reloc) that can be
5935 generated via assembly. We want calls to protected symbols to
5936 resolve directly to the function rather than going via the plt.
5937 If people want function pointer comparisons to work as expected
5938 then they should avoid writing weird assembly. */
5939 if (SYMBOL_CALLS_LOCAL (info, h))
5941 struct elf_dyn_relocs **pp;
5943 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5945 p->count -= p->pc_count;
5954 if (htab->is_vxworks)
5956 struct elf_dyn_relocs **pp;
5958 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5960 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
5967 /* Discard relocs on undefined symbols that must be local. */
5968 if (eh->dyn_relocs != NULL
5969 && h->root.type == bfd_link_hash_undefined
5970 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
5971 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
5972 eh->dyn_relocs = NULL;
5974 /* Also discard relocs on undefined weak syms with non-default
5976 if (eh->dyn_relocs != NULL
5977 && h->root.type == bfd_link_hash_undefweak)
5979 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
5980 eh->dyn_relocs = NULL;
5982 /* Make sure undefined weak symbols are output as a dynamic
5984 else if (h->dynindx == -1
5988 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5993 else if (ELIMINATE_COPY_RELOCS)
5995 /* For the non-shared case, discard space for relocs against
5996 symbols which turn out to need copy relocs or are not
6002 /* Make sure this symbol is output as a dynamic symbol.
6003 Undefined weak syms won't yet be marked as dynamic. */
6004 if (h->dynindx == -1
6005 && !h->forced_local)
6007 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6011 /* If that succeeded, we know we'll be keeping all the
6013 if (h->dynindx != -1)
6017 eh->dyn_relocs = NULL;
6022 /* Finally, allocate space. */
6023 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6025 asection *sreloc = elf_section_data (p->sec)->sreloc;
6026 if (!htab->elf.dynamic_sections_created)
6027 sreloc = htab->reliplt;
6028 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6034 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
6035 read-only sections. */
6038 maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
6040 if (h->root.type == bfd_link_hash_indirect)
6043 if (readonly_dynrelocs (h))
6045 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
6047 /* Not an error, just cut short the traversal. */
6053 static const unsigned char glink_eh_frame_cie[] =
6055 0, 0, 0, 16, /* length. */
6056 0, 0, 0, 0, /* id. */
6057 1, /* CIE version. */
6058 'z', 'R', 0, /* Augmentation string. */
6059 4, /* Code alignment. */
6060 0x7c, /* Data alignment. */
6062 1, /* Augmentation size. */
6063 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6064 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6067 /* Set the sizes of the dynamic sections. */
6070 ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
6071 struct bfd_link_info *info)
6073 struct ppc_elf_link_hash_table *htab;
6079 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
6082 htab = ppc_elf_hash_table (info);
6083 BFD_ASSERT (htab->elf.dynobj != NULL);
6085 if (elf_hash_table (info)->dynamic_sections_created)
6087 /* Set the contents of the .interp section to the interpreter. */
6088 if (info->executable)
6090 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
6091 BFD_ASSERT (s != NULL);
6092 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6093 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6097 if (htab->plt_type == PLT_OLD)
6098 htab->got_header_size = 16;
6099 else if (htab->plt_type == PLT_NEW)
6100 htab->got_header_size = 12;
6102 /* Set up .got offsets for local syms, and space for local dynamic
6104 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6106 bfd_signed_vma *local_got;
6107 bfd_signed_vma *end_local_got;
6108 struct plt_entry **local_plt;
6109 struct plt_entry **end_local_plt;
6111 bfd_size_type locsymcount;
6112 Elf_Internal_Shdr *symtab_hdr;
6114 if (!is_ppc_elf (ibfd))
6117 for (s = ibfd->sections; s != NULL; s = s->next)
6119 struct elf_dyn_relocs *p;
6121 for (p = ((struct elf_dyn_relocs *)
6122 elf_section_data (s)->local_dynrel);
6126 if (!bfd_is_abs_section (p->sec)
6127 && bfd_is_abs_section (p->sec->output_section))
6129 /* Input section has been discarded, either because
6130 it is a copy of a linkonce section or due to
6131 linker script /DISCARD/, so we'll be discarding
6134 else if (htab->is_vxworks
6135 && strcmp (p->sec->output_section->name,
6138 /* Relocations in vxworks .tls_vars sections are
6139 handled specially by the loader. */
6141 else if (p->count != 0)
6143 asection *sreloc = elf_section_data (p->sec)->sreloc;
6144 if (!htab->elf.dynamic_sections_created)
6145 sreloc = htab->reliplt;
6146 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6147 if ((p->sec->output_section->flags
6148 & (SEC_READONLY | SEC_ALLOC))
6149 == (SEC_READONLY | SEC_ALLOC))
6150 info->flags |= DF_TEXTREL;
6155 local_got = elf_local_got_refcounts (ibfd);
6159 symtab_hdr = &elf_symtab_hdr (ibfd);
6160 locsymcount = symtab_hdr->sh_info;
6161 end_local_got = local_got + locsymcount;
6162 local_plt = (struct plt_entry **) end_local_got;
6163 end_local_plt = local_plt + locsymcount;
6164 lgot_masks = (char *) end_local_plt;
6166 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6169 unsigned int need = 0;
6170 if ((*lgot_masks & TLS_TLS) != 0)
6172 if ((*lgot_masks & TLS_GD) != 0)
6174 if ((*lgot_masks & TLS_LD) != 0)
6175 htab->tlsld_got.refcount += 1;
6176 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6178 if ((*lgot_masks & TLS_DTPREL) != 0)
6184 *local_got = (bfd_vma) -1;
6187 *local_got = allocate_got (htab, need);
6190 asection *srel = htab->relgot;
6191 if ((*lgot_masks & PLT_IFUNC) != 0)
6192 srel = htab->reliplt;
6193 srel->size += need * (sizeof (Elf32_External_Rela) / 4);
6198 *local_got = (bfd_vma) -1;
6200 if (htab->is_vxworks)
6203 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6204 for (; local_plt < end_local_plt; ++local_plt)
6206 struct plt_entry *ent;
6207 bfd_boolean doneone = FALSE;
6208 bfd_vma plt_offset = 0, glink_offset = 0;
6210 for (ent = *local_plt; ent != NULL; ent = ent->next)
6211 if (ent->plt.refcount > 0)
6217 plt_offset = s->size;
6220 ent->plt.offset = plt_offset;
6223 if (!doneone || info->shared)
6225 glink_offset = s->size;
6226 s->size += GLINK_ENTRY_SIZE;
6228 ent->glink_offset = glink_offset;
6232 htab->reliplt->size += sizeof (Elf32_External_Rela);
6237 ent->plt.offset = (bfd_vma) -1;
6241 /* Allocate space for global sym dynamic relocs. */
6242 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6244 if (htab->tlsld_got.refcount > 0)
6246 htab->tlsld_got.offset = allocate_got (htab, 8);
6248 htab->relgot->size += sizeof (Elf32_External_Rela);
6251 htab->tlsld_got.offset = (bfd_vma) -1;
6253 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
6255 unsigned int g_o_t = 32768;
6257 /* If we haven't allocated the header, do so now. When we get here,
6258 for old plt/got the got size will be 0 to 32764 (not allocated),
6259 or 32780 to 65536 (header allocated). For new plt/got, the
6260 corresponding ranges are 0 to 32768 and 32780 to 65536. */
6261 if (htab->got->size <= 32768)
6263 g_o_t = htab->got->size;
6264 if (htab->plt_type == PLT_OLD)
6266 htab->got->size += htab->got_header_size;
6269 htab->elf.hgot->root.u.def.value = g_o_t;
6273 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6275 && !(sda->root.type == bfd_link_hash_defined
6276 || sda->root.type == bfd_link_hash_defweak))
6278 sda->root.type = bfd_link_hash_defined;
6279 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6280 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
6284 if (htab->glink != NULL
6285 && htab->glink->size != 0
6286 && htab->elf.dynamic_sections_created)
6288 htab->glink_pltresolve = htab->glink->size;
6289 /* Space for the branch table. */
6290 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6291 /* Pad out to align the start of PLTresolve. */
6292 htab->glink->size += -htab->glink->size & 15;
6293 htab->glink->size += GLINK_PLTRESOLVE;
6295 if (htab->emit_stub_syms)
6297 struct elf_link_hash_entry *sh;
6298 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6299 TRUE, FALSE, FALSE);
6302 if (sh->root.type == bfd_link_hash_new)
6304 sh->root.type = bfd_link_hash_defined;
6305 sh->root.u.def.section = htab->glink;
6306 sh->root.u.def.value = htab->glink_pltresolve;
6307 sh->ref_regular = 1;
6308 sh->def_regular = 1;
6309 sh->ref_regular_nonweak = 1;
6310 sh->forced_local = 1;
6313 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6314 TRUE, FALSE, FALSE);
6317 if (sh->root.type == bfd_link_hash_new)
6319 sh->root.type = bfd_link_hash_defined;
6320 sh->root.u.def.section = htab->glink;
6321 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6322 sh->ref_regular = 1;
6323 sh->def_regular = 1;
6324 sh->ref_regular_nonweak = 1;
6325 sh->forced_local = 1;
6331 if (htab->glink != NULL
6332 && htab->glink->size != 0
6333 && htab->glink_eh_frame != NULL
6334 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6335 && _bfd_elf_eh_frame_present (info))
6337 s = htab->glink_eh_frame;
6338 s->size = sizeof (glink_eh_frame_cie) + 20;
6342 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6347 /* We've now determined the sizes of the various dynamic sections.
6348 Allocate memory for them. */
6350 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
6352 bfd_boolean strip_section = TRUE;
6354 if ((s->flags & SEC_LINKER_CREATED) == 0)
6360 /* We'd like to strip these sections if they aren't needed, but if
6361 we've exported dynamic symbols from them we must leave them.
6362 It's too late to tell BFD to get rid of the symbols. */
6363 if (htab->elf.hplt != NULL)
6364 strip_section = FALSE;
6365 /* Strip this section if we don't need it; see the
6368 else if (s == htab->iplt
6370 || s == htab->glink_eh_frame
6371 || s == htab->sgotplt
6373 || s == htab->dynbss
6374 || s == htab->dynsbss
6375 || s == htab->sdata[0].section
6376 || s == htab->sdata[1].section)
6378 /* Strip these too. */
6380 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6385 /* Remember whether there are any relocation sections. */
6388 /* We use the reloc_count field as a counter if we need
6389 to copy relocs into the output file. */
6395 /* It's not one of our sections, so don't allocate space. */
6399 if (s->size == 0 && strip_section)
6401 /* If we don't need this section, strip it from the
6402 output file. This is mostly to handle .rela.bss and
6403 .rela.plt. We must create both sections in
6404 create_dynamic_sections, because they must be created
6405 before the linker maps input sections to output
6406 sections. The linker does that before
6407 adjust_dynamic_symbol is called, and it is that
6408 function which decides whether anything needs to go
6409 into these sections. */
6410 s->flags |= SEC_EXCLUDE;
6414 if ((s->flags & SEC_HAS_CONTENTS) == 0)
6417 /* Allocate memory for the section contents. */
6418 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6419 if (s->contents == NULL)
6423 if (htab->elf.dynamic_sections_created)
6425 /* Add some entries to the .dynamic section. We fill in the
6426 values later, in ppc_elf_finish_dynamic_sections, but we
6427 must add the entries now so that we get the correct size for
6428 the .dynamic section. The DT_DEBUG entry is filled in by the
6429 dynamic linker and used by the debugger. */
6430 #define add_dynamic_entry(TAG, VAL) \
6431 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6433 if (info->executable)
6435 if (!add_dynamic_entry (DT_DEBUG, 0))
6439 if (htab->plt != NULL && htab->plt->size != 0)
6441 if (!add_dynamic_entry (DT_PLTGOT, 0)
6442 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6443 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6444 || !add_dynamic_entry (DT_JMPREL, 0))
6448 if (htab->glink != NULL && htab->glink->size != 0)
6450 if (!add_dynamic_entry (DT_PPC_GOT, 0))
6452 if (!htab->no_tls_get_addr_opt
6453 && htab->tls_get_addr != NULL
6454 && htab->tls_get_addr->plt.plist != NULL
6455 && !add_dynamic_entry (DT_PPC_TLSOPT, 0))
6461 if (!add_dynamic_entry (DT_RELA, 0)
6462 || !add_dynamic_entry (DT_RELASZ, 0)
6463 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6467 /* If any dynamic relocs apply to a read-only section, then we
6468 need a DT_TEXTREL entry. */
6469 if ((info->flags & DF_TEXTREL) == 0)
6470 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
6473 if ((info->flags & DF_TEXTREL) != 0)
6475 if (!add_dynamic_entry (DT_TEXTREL, 0))
6478 if (htab->is_vxworks
6479 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6482 #undef add_dynamic_entry
6484 if (htab->glink_eh_frame != NULL
6485 && htab->glink_eh_frame->contents != NULL)
6487 unsigned char *p = htab->glink_eh_frame->contents;
6490 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6491 /* CIE length (rewrite in case little-endian). */
6492 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6493 p += sizeof (glink_eh_frame_cie);
6495 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6496 bfd_put_32 (htab->elf.dynobj, val, p);
6499 val = p - htab->glink_eh_frame->contents;
6500 bfd_put_32 (htab->elf.dynobj, val, p);
6502 /* Offset to .glink. Set later. */
6505 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6511 && htab->elf.dynamic_sections_created)
6513 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6515 *p++ = DW_CFA_advance_loc + adv;
6518 *p++ = DW_CFA_advance_loc1;
6521 else if (adv < 65536)
6523 *p++ = DW_CFA_advance_loc2;
6524 bfd_put_16 (htab->elf.dynobj, adv, p);
6529 *p++ = DW_CFA_advance_loc4;
6530 bfd_put_32 (htab->elf.dynobj, adv, p);
6533 *p++ = DW_CFA_register;
6536 *p++ = DW_CFA_advance_loc + 4;
6537 *p++ = DW_CFA_restore_extended;
6540 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6541 == htab->glink_eh_frame->size);
6547 /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6550 ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6552 if (h->plt.plist != NULL
6554 && (!h->pointer_equality_needed
6555 || !h->ref_regular_nonweak))
6558 return _bfd_elf_hash_symbol (h);
6561 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6563 /* Relaxation trampolines. r12 is available for clobbering (r11, is
6564 used for some functions that are allowed to break the ABI). */
6565 static const int shared_stub_entry[] =
6567 0x7c0802a6, /* mflr 0 */
6568 0x429f0005, /* bcl 20, 31, .Lxxx */
6569 0x7d8802a6, /* mflr 12 */
6570 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
6571 0x398c0008, /* addi 12, 12, (xxx-.Lxxx)@l */
6572 0x7c0803a6, /* mtlr 0 */
6573 0x7d8903a6, /* mtctr 12 */
6574 0x4e800420, /* bctr */
6577 static const int stub_entry[] =
6579 0x3d800000, /* lis 12,xxx@ha */
6580 0x398c0000, /* addi 12,12,xxx@l */
6581 0x7d8903a6, /* mtctr 12 */
6582 0x4e800420, /* bctr */
6586 ppc_elf_relax_section (bfd *abfd,
6588 struct bfd_link_info *link_info,
6593 struct one_fixup *next;
6595 /* Final link, can use the symbol offset. For a
6596 relocatable link we use the symbol's index. */
6601 Elf_Internal_Shdr *symtab_hdr;
6602 bfd_byte *contents = NULL;
6603 Elf_Internal_Sym *isymbuf = NULL;
6604 Elf_Internal_Rela *internal_relocs = NULL;
6605 Elf_Internal_Rela *irel, *irelend;
6606 struct one_fixup *fixups = NULL;
6607 unsigned changes = 0;
6608 struct ppc_elf_link_hash_table *htab;
6609 bfd_size_type trampoff;
6611 bfd_boolean maybe_pasted;
6615 /* Nothing to do if there are no relocations, and no need to do
6616 anything with non-alloc or non-code sections. */
6617 if ((isec->flags & SEC_ALLOC) == 0
6618 || (isec->flags & SEC_CODE) == 0
6619 || (isec->flags & SEC_RELOC) == 0
6620 || isec->reloc_count == 0)
6623 /* We cannot represent the required PIC relocs in the output, so don't
6624 do anything. The linker doesn't support mixing -shared and -r
6626 if (link_info->relocatable && link_info->shared)
6629 trampoff = (isec->size + 3) & (bfd_vma) -4;
6630 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6631 || strcmp (isec->output_section->name, ".fini") == 0);
6632 /* Space for a branch around any trampolines. */
6636 symtab_hdr = &elf_symtab_hdr (abfd);
6638 /* Get a copy of the native relocations. */
6639 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6640 link_info->keep_memory);
6641 if (internal_relocs == NULL)
6644 htab = ppc_elf_hash_table (link_info);
6645 got2 = bfd_get_section_by_name (abfd, ".got2");
6647 irelend = internal_relocs + isec->reloc_count;
6648 for (irel = internal_relocs; irel < irelend; irel++)
6650 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
6653 struct one_fixup *f;
6654 size_t insn_offset = 0;
6655 bfd_vma max_branch_offset, val;
6658 struct elf_link_hash_entry *h;
6659 struct plt_entry **plist;
6660 unsigned char sym_type;
6665 case R_PPC_LOCAL24PC:
6666 case R_PPC_PLTREL24:
6667 max_branch_offset = 1 << 25;
6671 case R_PPC_REL14_BRTAKEN:
6672 case R_PPC_REL14_BRNTAKEN:
6673 max_branch_offset = 1 << 15;
6680 /* Get the value of the symbol referred to by the reloc. */
6682 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
6684 /* A local symbol. */
6685 Elf_Internal_Sym *isym;
6687 /* Read this BFD's local symbols. */
6688 if (isymbuf == NULL)
6690 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
6691 if (isymbuf == NULL)
6692 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
6693 symtab_hdr->sh_info, 0,
6698 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6699 if (isym->st_shndx == SHN_UNDEF)
6700 tsec = bfd_und_section_ptr;
6701 else if (isym->st_shndx == SHN_ABS)
6702 tsec = bfd_abs_section_ptr;
6703 else if (isym->st_shndx == SHN_COMMON)
6704 tsec = bfd_com_section_ptr;
6706 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
6708 toff = isym->st_value;
6709 sym_type = ELF_ST_TYPE (isym->st_info);
6713 /* Global symbol handling. */
6716 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6717 h = elf_sym_hashes (abfd)[indx];
6719 while (h->root.type == bfd_link_hash_indirect
6720 || h->root.type == bfd_link_hash_warning)
6721 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6723 if (h->root.type == bfd_link_hash_defined
6724 || h->root.type == bfd_link_hash_defweak)
6726 tsec = h->root.u.def.section;
6727 toff = h->root.u.def.value;
6729 else if (h->root.type == bfd_link_hash_undefined
6730 || h->root.type == bfd_link_hash_undefweak)
6732 tsec = bfd_und_section_ptr;
6733 toff = link_info->relocatable ? indx : 0;
6741 /* The condition here under which we call find_plt_ent must
6742 match that in relocate_section. If we call find_plt_ent here
6743 but not in relocate_section, or vice versa, then the branch
6744 destination used here may be incorrect. */
6748 /* We know is_branch_reloc (r_type) is true. */
6749 if (h->type == STT_GNU_IFUNC
6750 || r_type == R_PPC_PLTREL24)
6751 plist = &h->plt.plist;
6753 else if (sym_type == STT_GNU_IFUNC
6754 && elf_local_got_offsets (abfd) != NULL)
6756 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6757 struct plt_entry **local_plt = (struct plt_entry **)
6758 (local_got_offsets + symtab_hdr->sh_info);
6759 plist = local_plt + ELF32_R_SYM (irel->r_info);
6764 struct plt_entry *ent;
6766 if (r_type == R_PPC_PLTREL24 && link_info->shared)
6767 addend = irel->r_addend;
6768 ent = find_plt_ent (plist, got2, addend);
6771 if (htab->plt_type == PLT_NEW
6773 || !htab->elf.dynamic_sections_created
6774 || h->dynindx == -1)
6777 toff = ent->glink_offset;
6782 toff = ent->plt.offset;
6787 /* If the branch and target are in the same section, you have
6788 no hope of adding stubs. We'll error out later should the
6793 /* There probably isn't any reason to handle symbols in
6794 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
6795 attribute for a code section, and we are only looking at
6796 branches. However, implement it correctly here as a
6797 reference for other target relax_section functions. */
6798 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
6800 /* At this stage in linking, no SEC_MERGE symbol has been
6801 adjusted, so all references to such symbols need to be
6802 passed through _bfd_merged_section_offset. (Later, in
6803 relocate_section, all SEC_MERGE symbols *except* for
6804 section symbols have been adjusted.)
6806 gas may reduce relocations against symbols in SEC_MERGE
6807 sections to a relocation against the section symbol when
6808 the original addend was zero. When the reloc is against
6809 a section symbol we should include the addend in the
6810 offset passed to _bfd_merged_section_offset, since the
6811 location of interest is the original symbol. On the
6812 other hand, an access to "sym+addend" where "sym" is not
6813 a section symbol should not include the addend; Such an
6814 access is presumed to be an offset from "sym"; The
6815 location of interest is just "sym". */
6816 if (sym_type == STT_SECTION)
6817 toff += irel->r_addend;
6819 toff = _bfd_merged_section_offset (abfd, &tsec,
6820 elf_section_data (tsec)->sec_info,
6823 if (sym_type != STT_SECTION)
6824 toff += irel->r_addend;
6826 /* PLTREL24 addends are special. */
6827 else if (r_type != R_PPC_PLTREL24)
6828 toff += irel->r_addend;
6830 /* Attempted -shared link of non-pic code loses. */
6831 if (tsec->output_section == NULL)
6834 roff = irel->r_offset;
6836 /* If the branch is in range, no need to do anything. */
6837 if (tsec != bfd_und_section_ptr
6838 && (!link_info->relocatable
6839 /* A relocatable link may have sections moved during
6840 final link, so do not presume they remain in range. */
6841 || tsec->output_section == isec->output_section))
6843 bfd_vma symaddr, reladdr;
6845 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
6846 reladdr = isec->output_section->vma + isec->output_offset + roff;
6847 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
6851 /* Look for an existing fixup to this address. */
6852 for (f = fixups; f ; f = f->next)
6853 if (f->tsec == tsec && f->toff == toff)
6859 unsigned long stub_rtype;
6861 val = trampoff - roff;
6862 if (val >= max_branch_offset)
6863 /* Oh dear, we can't reach a trampoline. Don't try to add
6864 one. We'll report an error later. */
6867 if (link_info->shared)
6869 size = 4 * ARRAY_SIZE (shared_stub_entry);
6874 size = 4 * ARRAY_SIZE (stub_entry);
6877 stub_rtype = R_PPC_RELAX;
6878 if (tsec == htab->plt
6879 || tsec == htab->glink)
6881 stub_rtype = R_PPC_RELAX_PLT;
6882 if (r_type == R_PPC_PLTREL24)
6883 stub_rtype = R_PPC_RELAX_PLTREL24;
6886 /* Hijack the old relocation. Since we need two
6887 relocations for this use a "composite" reloc. */
6888 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
6890 irel->r_offset = trampoff + insn_offset;
6891 if (r_type == R_PPC_PLTREL24
6892 && stub_rtype != R_PPC_RELAX_PLTREL24)
6895 /* Record the fixup so we don't do it again this section. */
6896 f = bfd_malloc (sizeof (*f));
6900 f->trampoff = trampoff;
6908 val = f->trampoff - roff;
6909 if (val >= max_branch_offset)
6912 /* Nop out the reloc, since we're finalizing things here. */
6913 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
6916 /* Get the section contents. */
6917 if (contents == NULL)
6919 /* Get cached copy if it exists. */
6920 if (elf_section_data (isec)->this_hdr.contents != NULL)
6921 contents = elf_section_data (isec)->this_hdr.contents;
6924 /* Go get them off disk. */
6925 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
6930 /* Fix up the existing branch to hit the trampoline. */
6931 hit_addr = contents + roff;
6935 case R_PPC_LOCAL24PC:
6936 case R_PPC_PLTREL24:
6937 t0 = bfd_get_32 (abfd, hit_addr);
6939 t0 |= val & 0x3fffffc;
6940 bfd_put_32 (abfd, t0, hit_addr);
6944 case R_PPC_REL14_BRTAKEN:
6945 case R_PPC_REL14_BRNTAKEN:
6946 t0 = bfd_get_32 (abfd, hit_addr);
6949 bfd_put_32 (abfd, t0, hit_addr);
6954 /* Write out the trampolines. */
6963 struct one_fixup *f = fixups;
6964 fixups = fixups->next;
6969 contents = bfd_realloc_or_free (contents, trampoff);
6970 if (contents == NULL)
6973 isec->size = (isec->size + 3) & (bfd_vma) -4;
6974 dest = contents + isec->size;
6975 /* Branch around the trampolines. */
6978 bfd_vma val = B + trampoff - isec->size;
6979 bfd_put_32 (abfd, val, dest);
6982 isec->size = trampoff;
6984 if (link_info->shared)
6986 stub = shared_stub_entry;
6987 size = ARRAY_SIZE (shared_stub_entry);
6992 size = ARRAY_SIZE (stub_entry);
6996 while (dest < contents + trampoff)
6998 bfd_put_32 (abfd, stub[i], dest);
7004 BFD_ASSERT (i == 0);
7008 && symtab_hdr->contents != (unsigned char *) isymbuf)
7010 if (! link_info->keep_memory)
7014 /* Cache the symbols for elf_link_input_bfd. */
7015 symtab_hdr->contents = (unsigned char *) isymbuf;
7019 if (contents != NULL
7020 && elf_section_data (isec)->this_hdr.contents != contents)
7022 if (!changes && !link_info->keep_memory)
7026 /* Cache the section contents for elf_link_input_bfd. */
7027 elf_section_data (isec)->this_hdr.contents = contents;
7033 /* Append sufficient NOP relocs so we can write out relocation
7034 information for the trampolines. */
7035 Elf_Internal_Shdr *rel_hdr;
7036 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7037 * sizeof (*new_relocs));
7042 memcpy (new_relocs, internal_relocs,
7043 isec->reloc_count * sizeof (*new_relocs));
7044 for (ix = changes; ix--;)
7046 irel = new_relocs + ix + isec->reloc_count;
7048 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7050 if (internal_relocs != elf_section_data (isec)->relocs)
7051 free (internal_relocs);
7052 elf_section_data (isec)->relocs = new_relocs;
7053 isec->reloc_count += changes;
7054 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7055 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
7057 else if (elf_section_data (isec)->relocs != internal_relocs)
7058 free (internal_relocs);
7060 *again = changes != 0;
7061 if (!*again && link_info->relocatable)
7063 /* Convert the internal relax relocs to external form. */
7064 for (irel = internal_relocs; irel < irelend; irel++)
7065 if (ELF32_R_TYPE (irel->r_info) == R_PPC_RELAX)
7067 unsigned long r_symndx = ELF32_R_SYM (irel->r_info);
7069 /* Rewrite the reloc and convert one of the trailing nop
7070 relocs to describe this relocation. */
7071 BFD_ASSERT (ELF32_R_TYPE (irelend[-1].r_info) == R_PPC_NONE);
7072 /* The relocs are at the bottom 2 bytes */
7073 irel[0].r_offset += 2;
7074 memmove (irel + 1, irel, (irelend - irel - 1) * sizeof (*irel));
7075 irel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
7076 irel[1].r_offset += 4;
7077 irel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
7085 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7087 if (contents != NULL
7088 && elf_section_data (isec)->this_hdr.contents != contents)
7090 if (internal_relocs != NULL
7091 && elf_section_data (isec)->relocs != internal_relocs)
7092 free (internal_relocs);
7096 /* What to do when ld finds relocations against symbols defined in
7097 discarded sections. */
7100 ppc_elf_action_discarded (asection *sec)
7102 if (strcmp (".fixup", sec->name) == 0)
7105 if (strcmp (".got2", sec->name) == 0)
7108 return _bfd_elf_default_action_discarded (sec);
7111 /* Fill in the address for a pointer generated in a linker section. */
7114 elf_finish_pointer_linker_section (bfd *input_bfd,
7115 elf_linker_section_t *lsect,
7116 struct elf_link_hash_entry *h,
7118 const Elf_Internal_Rela *rel)
7120 elf_linker_section_pointers_t *linker_section_ptr;
7122 BFD_ASSERT (lsect != NULL);
7126 /* Handle global symbol. */
7127 struct ppc_elf_link_hash_entry *eh;
7129 eh = (struct ppc_elf_link_hash_entry *) h;
7130 BFD_ASSERT (eh->elf.def_regular);
7131 linker_section_ptr = eh->linker_section_pointer;
7135 /* Handle local symbol. */
7136 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
7138 BFD_ASSERT (is_ppc_elf (input_bfd));
7139 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
7140 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7143 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7146 BFD_ASSERT (linker_section_ptr != NULL);
7148 /* Offset will always be a multiple of four, so use the bottom bit
7149 as a "written" flag. */
7150 if ((linker_section_ptr->offset & 1) == 0)
7152 bfd_put_32 (lsect->section->owner,
7153 relocation + linker_section_ptr->addend,
7154 lsect->section->contents + linker_section_ptr->offset);
7155 linker_section_ptr->offset += 1;
7158 relocation = (lsect->section->output_section->vma
7159 + lsect->section->output_offset
7160 + linker_section_ptr->offset - 1
7161 - SYM_VAL (lsect->sym));
7165 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7166 lsect->name, (long) relocation, (long) relocation);
7172 #define PPC_LO(v) ((v) & 0xffff)
7173 #define PPC_HI(v) (((v) >> 16) & 0xffff)
7174 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
7177 write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
7178 struct bfd_link_info *info)
7180 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7181 bfd *output_bfd = info->output_bfd;
7184 plt = ((ent->plt.offset & ~1)
7185 + plt_sec->output_section->vma
7186 + plt_sec->output_offset);
7192 if (ent->addend >= 32768)
7194 + ent->sec->output_section->vma
7195 + ent->sec->output_offset);
7196 else if (htab->elf.hgot != NULL)
7197 got = SYM_VAL (htab->elf.hgot);
7201 if (plt + 0x8000 < 0x10000)
7203 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7205 bfd_put_32 (output_bfd, MTCTR_11, p);
7207 bfd_put_32 (output_bfd, BCTR, p);
7209 bfd_put_32 (output_bfd, NOP, p);
7214 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7216 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7218 bfd_put_32 (output_bfd, MTCTR_11, p);
7220 bfd_put_32 (output_bfd, BCTR, p);
7226 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7228 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7230 bfd_put_32 (output_bfd, MTCTR_11, p);
7232 bfd_put_32 (output_bfd, BCTR, p);
7237 /* Return true if symbol is defined statically. */
7240 is_static_defined (struct elf_link_hash_entry *h)
7242 return ((h->root.type == bfd_link_hash_defined
7243 || h->root.type == bfd_link_hash_defweak)
7244 && h->root.u.def.section != NULL
7245 && h->root.u.def.section->output_section != NULL);
7248 /* If INSN is an opcode that may be used with an @tls operand, return
7249 the transformed insn for TLS optimisation, otherwise return 0. If
7250 REG is non-zero only match an insn with RB or RA equal to REG. */
7253 _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7257 if ((insn & (0x3f << 26)) != 31 << 26)
7260 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7261 rtra = insn & ((1 << 26) - (1 << 16));
7262 else if (((insn >> 16) & 0x1f) == reg)
7263 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7267 if ((insn & (0x3ff << 1)) == 266 << 1)
7270 else if ((insn & (0x1f << 1)) == 23 << 1
7271 && ((insn & (0x1f << 6)) < 14 << 6
7272 || ((insn & (0x1f << 6)) >= 16 << 6
7273 && (insn & (0x1f << 6)) < 24 << 6)))
7274 /* load and store indexed -> dform. */
7275 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7276 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7277 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7278 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7279 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7281 insn = (58 << 26) | 2;
7288 /* If INSN is an opcode that may be used with an @tprel operand, return
7289 the transformed insn for an undefined weak symbol, ie. with the
7290 thread pointer REG operand removed. Otherwise return 0. */
7293 _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7295 if ((insn & (0x1f << 16)) == reg << 16
7296 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7297 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7298 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7299 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7300 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7301 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7302 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7303 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7304 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7305 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7306 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7307 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7308 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7309 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7310 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7311 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7313 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7314 && ((insn & 3) == 0 || (insn & 3) == 3))))
7316 insn &= ~(0x1f << 16);
7318 else if ((insn & (0x1f << 21)) == reg << 21
7319 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7320 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7321 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7323 insn &= ~(0x1f << 21);
7324 insn |= (insn & (0x1f << 16)) << 5;
7325 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7326 insn -= 2 >> 26; /* convert to ori,oris */
7334 is_insn_ds_form (unsigned int insn)
7336 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7337 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7338 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7339 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7343 is_insn_dq_form (unsigned int insn)
7345 return (insn & (0x3f << 26)) == 56u << 26; /* lq */
7348 /* The RELOCATE_SECTION function is called by the ELF backend linker
7349 to handle the relocations for a section.
7351 The relocs are always passed as Rela structures; if the section
7352 actually uses Rel structures, the r_addend field will always be
7355 This function is responsible for adjust the section contents as
7356 necessary, and (if using Rela relocs and generating a
7357 relocatable output file) adjusting the reloc addend as
7360 This function does not have to worry about setting the reloc
7361 address or the reloc symbol index.
7363 LOCAL_SYMS is a pointer to the swapped in local symbols.
7365 LOCAL_SECTIONS is an array giving the section in the input file
7366 corresponding to the st_shndx field of each local symbol.
7368 The global hash table entry for the global symbols can be found
7369 via elf_sym_hashes (input_bfd).
7371 When generating relocatable output, this function must handle
7372 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7373 going to be the section symbol corresponding to the output
7374 section, which means that the addend must be adjusted
7378 ppc_elf_relocate_section (bfd *output_bfd,
7379 struct bfd_link_info *info,
7381 asection *input_section,
7383 Elf_Internal_Rela *relocs,
7384 Elf_Internal_Sym *local_syms,
7385 asection **local_sections)
7387 Elf_Internal_Shdr *symtab_hdr;
7388 struct elf_link_hash_entry **sym_hashes;
7389 struct ppc_elf_link_hash_table *htab;
7390 Elf_Internal_Rela *rel;
7391 Elf_Internal_Rela *relend;
7392 Elf_Internal_Rela outrel;
7393 asection *got2, *sreloc = NULL;
7394 bfd_vma *local_got_offsets;
7395 bfd_boolean ret = TRUE;
7396 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
7397 bfd_boolean is_vxworks_tls;
7400 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7401 "%ld relocations%s",
7402 input_bfd, input_section,
7403 (long) input_section->reloc_count,
7404 (info->relocatable) ? " (relocatable)" : "");
7407 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7409 /* Initialize howto table if not already done. */
7410 if (!ppc_elf_howto_table[R_PPC_ADDR32])
7411 ppc_elf_howto_init ();
7413 htab = ppc_elf_hash_table (info);
7414 local_got_offsets = elf_local_got_offsets (input_bfd);
7415 symtab_hdr = &elf_symtab_hdr (input_bfd);
7416 sym_hashes = elf_sym_hashes (input_bfd);
7417 /* We have to handle relocations in vxworks .tls_vars sections
7418 specially, because the dynamic loader is 'weird'. */
7419 is_vxworks_tls = (htab->is_vxworks && info->shared
7420 && !strcmp (input_section->output_section->name,
7423 relend = relocs + input_section->reloc_count;
7424 for (; rel < relend; rel++)
7426 enum elf_ppc_reloc_type r_type;
7428 bfd_reloc_status_type r;
7429 Elf_Internal_Sym *sym;
7431 struct elf_link_hash_entry *h;
7432 const char *sym_name;
7433 reloc_howto_type *howto;
7434 unsigned long r_symndx;
7436 bfd_vma branch_bit, from;
7437 bfd_boolean unresolved_reloc;
7439 unsigned int tls_type, tls_mask, tls_gd;
7440 struct plt_entry **ifunc;
7442 r_type = ELF32_R_TYPE (rel->r_info);
7446 unresolved_reloc = FALSE;
7448 r_symndx = ELF32_R_SYM (rel->r_info);
7450 if (r_symndx < symtab_hdr->sh_info)
7452 sym = local_syms + r_symndx;
7453 sec = local_sections[r_symndx];
7454 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
7456 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
7460 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7461 r_symndx, symtab_hdr, sym_hashes,
7463 unresolved_reloc, warned);
7465 sym_name = h->root.root.string;
7468 if (sec != NULL && discarded_section (sec))
7470 /* For relocs against symbols from removed linkonce sections,
7471 or sections discarded by a linker script, we just want the
7472 section contents zeroed. Avoid any special processing. */
7474 if (r_type < R_PPC_max)
7475 howto = ppc_elf_howto_table[r_type];
7476 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
7477 rel, 1, relend, howto, 0, contents);
7480 if (info->relocatable)
7483 && r_type == R_PPC_PLTREL24
7484 && rel->r_addend != 0)
7486 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7487 addend specifies the GOT pointer offset within .got2. */
7488 rel->r_addend += got2->output_offset;
7493 /* TLS optimizations. Replace instruction sequences and relocs
7494 based on information we collected in tls_optimize. We edit
7495 RELOCS so that --emit-relocs will output something sensible
7496 for the final instruction stream. */
7500 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7501 else if (local_got_offsets != NULL)
7503 struct plt_entry **local_plt;
7506 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7507 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
7508 tls_mask = lgot_masks[r_symndx];
7511 /* Ensure reloc mapping code below stays sane. */
7512 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7513 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7514 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7515 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7516 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7517 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7518 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7519 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7526 case R_PPC_GOT_TPREL16:
7527 case R_PPC_GOT_TPREL16_LO:
7528 if ((tls_mask & TLS_TLS) != 0
7529 && (tls_mask & TLS_TPREL) == 0)
7533 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
7535 insn |= 0x3c020000; /* addis 0,2,0 */
7536 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
7537 r_type = R_PPC_TPREL16_HA;
7538 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7543 if ((tls_mask & TLS_TLS) != 0
7544 && (tls_mask & TLS_TPREL) == 0)
7548 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7549 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7552 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7553 r_type = R_PPC_TPREL16_LO;
7554 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7556 /* Was PPC_TLS which sits on insn boundary, now
7557 PPC_TPREL16_LO which is at low-order half-word. */
7558 rel->r_offset += d_offset;
7562 case R_PPC_GOT_TLSGD16_HI:
7563 case R_PPC_GOT_TLSGD16_HA:
7564 tls_gd = TLS_TPRELGD;
7565 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7569 case R_PPC_GOT_TLSLD16_HI:
7570 case R_PPC_GOT_TLSLD16_HA:
7571 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7574 if ((tls_mask & tls_gd) != 0)
7575 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7576 + R_PPC_GOT_TPREL16);
7579 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7580 rel->r_offset -= d_offset;
7581 r_type = R_PPC_NONE;
7583 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7587 case R_PPC_GOT_TLSGD16:
7588 case R_PPC_GOT_TLSGD16_LO:
7589 tls_gd = TLS_TPRELGD;
7590 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7594 case R_PPC_GOT_TLSLD16:
7595 case R_PPC_GOT_TLSLD16_LO:
7596 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7598 unsigned int insn1, insn2;
7602 offset = (bfd_vma) -1;
7603 /* If not using the newer R_PPC_TLSGD/LD to mark
7604 __tls_get_addr calls, we must trust that the call
7605 stays with its arg setup insns, ie. that the next
7606 reloc is the __tls_get_addr call associated with
7607 the current reloc. Edit both insns. */
7608 if (input_section->has_tls_get_addr_call
7610 && branch_reloc_hash_match (input_bfd, rel + 1,
7611 htab->tls_get_addr))
7612 offset = rel[1].r_offset;
7613 if ((tls_mask & tls_gd) != 0)
7616 insn1 = bfd_get_32 (output_bfd,
7617 contents + rel->r_offset - d_offset);
7618 insn1 &= (1 << 26) - 1;
7619 insn1 |= 32 << 26; /* lwz */
7620 if (offset != (bfd_vma) -1)
7622 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7623 insn2 = 0x7c631214; /* add 3,3,2 */
7624 bfd_put_32 (output_bfd, insn2, contents + offset);
7626 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7627 + R_PPC_GOT_TPREL16);
7628 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7633 insn1 = 0x3c620000; /* addis 3,2,0 */
7636 /* Was an LD reloc. */
7638 r_symndx < symtab_hdr->sh_info;
7640 if (local_sections[r_symndx] == sec)
7642 if (r_symndx >= symtab_hdr->sh_info)
7643 r_symndx = STN_UNDEF;
7644 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7645 if (r_symndx != STN_UNDEF)
7646 rel->r_addend -= (local_syms[r_symndx].st_value
7647 + sec->output_offset
7648 + sec->output_section->vma);
7650 r_type = R_PPC_TPREL16_HA;
7651 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7652 if (offset != (bfd_vma) -1)
7654 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7655 rel[1].r_offset = offset + d_offset;
7656 rel[1].r_addend = rel->r_addend;
7657 insn2 = 0x38630000; /* addi 3,3,0 */
7658 bfd_put_32 (output_bfd, insn2, contents + offset);
7661 bfd_put_32 (output_bfd, insn1,
7662 contents + rel->r_offset - d_offset);
7665 /* We changed the symbol on an LD reloc. Start over
7666 in order to get h, sym, sec etc. right. */
7674 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7677 bfd_vma offset = rel->r_offset;
7679 if ((tls_mask & TLS_TPRELGD) != 0)
7682 r_type = R_PPC_NONE;
7683 insn2 = 0x7c631214; /* add 3,3,2 */
7688 r_type = R_PPC_TPREL16_LO;
7689 rel->r_offset += d_offset;
7690 insn2 = 0x38630000; /* addi 3,3,0 */
7692 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7693 bfd_put_32 (output_bfd, insn2, contents + offset);
7694 /* Zap the reloc on the _tls_get_addr call too. */
7695 BFD_ASSERT (offset == rel[1].r_offset);
7696 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7701 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7706 r_symndx < symtab_hdr->sh_info;
7708 if (local_sections[r_symndx] == sec)
7710 if (r_symndx >= symtab_hdr->sh_info)
7711 r_symndx = STN_UNDEF;
7712 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7713 if (r_symndx != STN_UNDEF)
7714 rel->r_addend -= (local_syms[r_symndx].st_value
7715 + sec->output_offset
7716 + sec->output_section->vma);
7718 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7719 rel->r_offset += d_offset;
7720 insn2 = 0x38630000; /* addi 3,3,0 */
7721 bfd_put_32 (output_bfd, insn2,
7722 contents + rel->r_offset - d_offset);
7723 /* Zap the reloc on the _tls_get_addr call too. */
7724 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
7725 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7732 /* Handle other relocations that tweak non-addend part of insn. */
7739 /* Branch taken prediction relocations. */
7740 case R_PPC_ADDR14_BRTAKEN:
7741 case R_PPC_REL14_BRTAKEN:
7742 branch_bit = BRANCH_PREDICT_BIT;
7745 /* Branch not taken prediction relocations. */
7746 case R_PPC_ADDR14_BRNTAKEN:
7747 case R_PPC_REL14_BRNTAKEN:
7751 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7752 insn &= ~BRANCH_PREDICT_BIT;
7755 from = (rel->r_offset
7756 + input_section->output_offset
7757 + input_section->output_section->vma);
7759 /* Invert 'y' bit if not the default. */
7760 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
7761 insn ^= BRANCH_PREDICT_BIT;
7763 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7769 if (!htab->is_vxworks)
7771 struct plt_entry *ent;
7775 if (h->type == STT_GNU_IFUNC)
7776 ifunc = &h->plt.plist;
7778 else if (local_got_offsets != NULL
7779 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
7781 struct plt_entry **local_plt;
7783 local_plt = (struct plt_entry **) (local_got_offsets
7784 + symtab_hdr->sh_info);
7785 ifunc = local_plt + r_symndx;
7791 || is_branch_reloc (r_type)))
7794 if (r_type == R_PPC_PLTREL24 && info->shared)
7795 addend = rel->r_addend;
7796 ent = find_plt_ent (ifunc, got2, addend);
7800 if (h == NULL && (ent->plt.offset & 1) == 0)
7802 Elf_Internal_Rela rela;
7805 rela.r_offset = (htab->iplt->output_section->vma
7806 + htab->iplt->output_offset
7808 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
7809 rela.r_addend = relocation;
7810 loc = htab->reliplt->contents;
7811 loc += (htab->reliplt->reloc_count++
7812 * sizeof (Elf32_External_Rela));
7813 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7815 ent->plt.offset |= 1;
7817 if (h == NULL && (ent->glink_offset & 1) == 0)
7819 unsigned char *p = ((unsigned char *) htab->glink->contents
7820 + ent->glink_offset);
7821 write_glink_stub (ent, htab->iplt, p, info);
7822 ent->glink_offset |= 1;
7825 unresolved_reloc = FALSE;
7826 if (htab->plt_type == PLT_NEW
7827 || !htab->elf.dynamic_sections_created
7829 relocation = (htab->glink->output_section->vma
7830 + htab->glink->output_offset
7831 + (ent->glink_offset & ~1));
7833 relocation = (htab->plt->output_section->vma
7834 + htab->plt->output_offset
7839 addend = rel->r_addend;
7842 if (r_type < R_PPC_max)
7843 howto = ppc_elf_howto_table[r_type];
7847 info->callbacks->einfo
7848 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
7849 input_bfd, (int) r_type, sym_name);
7851 bfd_set_error (bfd_error_bad_value);
7859 case R_PPC_EMB_MRKREF:
7860 case R_PPC_GNU_VTINHERIT:
7861 case R_PPC_GNU_VTENTRY:
7864 /* GOT16 relocations. Like an ADDR16 using the symbol's
7865 address in the GOT as relocation value instead of the
7866 symbol's value itself. Also, create a GOT entry for the
7867 symbol and put the symbol value there. */
7868 case R_PPC_GOT_TLSGD16:
7869 case R_PPC_GOT_TLSGD16_LO:
7870 case R_PPC_GOT_TLSGD16_HI:
7871 case R_PPC_GOT_TLSGD16_HA:
7872 tls_type = TLS_TLS | TLS_GD;
7875 case R_PPC_GOT_TLSLD16:
7876 case R_PPC_GOT_TLSLD16_LO:
7877 case R_PPC_GOT_TLSLD16_HI:
7878 case R_PPC_GOT_TLSLD16_HA:
7879 tls_type = TLS_TLS | TLS_LD;
7882 case R_PPC_GOT_TPREL16:
7883 case R_PPC_GOT_TPREL16_LO:
7884 case R_PPC_GOT_TPREL16_HI:
7885 case R_PPC_GOT_TPREL16_HA:
7886 tls_type = TLS_TLS | TLS_TPREL;
7889 case R_PPC_GOT_DTPREL16:
7890 case R_PPC_GOT_DTPREL16_LO:
7891 case R_PPC_GOT_DTPREL16_HI:
7892 case R_PPC_GOT_DTPREL16_HA:
7893 tls_type = TLS_TLS | TLS_DTPREL;
7897 case R_PPC_GOT16_LO:
7898 case R_PPC_GOT16_HI:
7899 case R_PPC_GOT16_HA:
7903 /* Relocation is to the entry for this symbol in the global
7909 if (htab->got == NULL)
7913 if (tls_type == (TLS_TLS | TLS_LD)
7915 || !h->def_dynamic))
7916 offp = &htab->tlsld_got.offset;
7920 dyn = htab->elf.dynamic_sections_created;
7921 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7923 && SYMBOL_REFERENCES_LOCAL (info, h)))
7924 /* This is actually a static link, or it is a
7925 -Bsymbolic link and the symbol is defined
7926 locally, or the symbol was forced to be local
7927 because of a version file. */
7931 BFD_ASSERT (h->dynindx != -1);
7933 unresolved_reloc = FALSE;
7935 offp = &h->got.offset;
7939 if (local_got_offsets == NULL)
7941 offp = &local_got_offsets[r_symndx];
7944 /* The offset must always be a multiple of 4. We use the
7945 least significant bit to record whether we have already
7946 processed this entry. */
7952 unsigned int tls_m = (tls_mask
7953 & (TLS_LD | TLS_GD | TLS_DTPREL
7954 | TLS_TPREL | TLS_TPRELGD));
7956 if (offp == &htab->tlsld_got.offset)
7962 /* We might have multiple got entries for this sym.
7963 Initialize them all. */
7968 if ((tls_m & TLS_LD) != 0)
7970 tls_ty = TLS_TLS | TLS_LD;
7973 else if ((tls_m & TLS_GD) != 0)
7975 tls_ty = TLS_TLS | TLS_GD;
7978 else if ((tls_m & TLS_DTPREL) != 0)
7980 tls_ty = TLS_TLS | TLS_DTPREL;
7981 tls_m &= ~TLS_DTPREL;
7983 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
7985 tls_ty = TLS_TLS | TLS_TPREL;
7989 /* Generate relocs for the dynamic linker. */
7990 if ((info->shared || indx != 0)
7991 && (offp == &htab->tlsld_got.offset
7993 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7994 || h->root.type != bfd_link_hash_undefweak))
7996 asection *rsec = htab->relgot;
8000 rsec = htab->reliplt;
8001 outrel.r_offset = (htab->got->output_section->vma
8002 + htab->got->output_offset
8004 outrel.r_addend = 0;
8005 if (tls_ty & (TLS_LD | TLS_GD))
8007 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
8008 if (tls_ty == (TLS_TLS | TLS_GD))
8010 loc = rsec->contents;
8011 loc += (rsec->reloc_count++
8012 * sizeof (Elf32_External_Rela));
8013 bfd_elf32_swap_reloca_out (output_bfd,
8015 outrel.r_offset += 4;
8017 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8020 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8021 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8022 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8023 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
8025 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
8026 else if (ifunc != NULL)
8027 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8029 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
8030 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
8032 outrel.r_addend += relocation;
8033 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
8034 outrel.r_addend -= htab->elf.tls_sec->vma;
8036 loc = rsec->contents;
8037 loc += (rsec->reloc_count++
8038 * sizeof (Elf32_External_Rela));
8039 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
8042 /* Init the .got section contents if we're not
8043 emitting a reloc. */
8046 bfd_vma value = relocation;
8048 if (tls_ty == (TLS_TLS | TLS_LD))
8050 else if (tls_ty != 0)
8052 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
8053 if (tls_ty == (TLS_TLS | TLS_TPREL))
8054 value += DTP_OFFSET - TP_OFFSET;
8056 if (tls_ty == (TLS_TLS | TLS_GD))
8058 bfd_put_32 (output_bfd, value,
8059 htab->got->contents + off + 4);
8063 bfd_put_32 (output_bfd, value,
8064 htab->got->contents + off);
8068 if (tls_ty & (TLS_LD | TLS_GD))
8077 if (off >= (bfd_vma) -2)
8080 if ((tls_type & TLS_TLS) != 0)
8082 if (tls_type != (TLS_TLS | TLS_LD))
8084 if ((tls_mask & TLS_LD) != 0
8086 || !h->def_dynamic))
8088 if (tls_type != (TLS_TLS | TLS_GD))
8090 if ((tls_mask & TLS_GD) != 0)
8092 if (tls_type != (TLS_TLS | TLS_DTPREL))
8094 if ((tls_mask & TLS_DTPREL) != 0)
8101 relocation = (htab->got->output_section->vma
8102 + htab->got->output_offset
8104 - SYM_VAL (htab->elf.hgot));
8106 /* Addends on got relocations don't make much sense.
8107 x+off@got is actually x@got+off, and since the got is
8108 generated by a hash table traversal, the value in the
8109 got at entry m+n bears little relation to the entry m. */
8111 info->callbacks->einfo
8112 (_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
8113 input_bfd, input_section, rel->r_offset,
8119 /* Relocations that need no special processing. */
8120 case R_PPC_LOCAL24PC:
8121 /* It makes no sense to point a local relocation
8122 at a symbol not in this object. */
8123 if (unresolved_reloc)
8125 if (! (*info->callbacks->undefined_symbol) (info,
8126 h->root.root.string,
8136 case R_PPC_DTPREL16:
8137 case R_PPC_DTPREL16_LO:
8138 case R_PPC_DTPREL16_HI:
8139 case R_PPC_DTPREL16_HA:
8140 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8143 /* Relocations that may need to be propagated if this is a shared
8146 case R_PPC_TPREL16_LO:
8147 case R_PPC_TPREL16_HI:
8148 case R_PPC_TPREL16_HA:
8150 && h->root.type == bfd_link_hash_undefweak
8151 && h->dynindx == -1)
8153 /* Make this relocation against an undefined weak symbol
8154 resolve to zero. This is really just a tweak, since
8155 code using weak externs ought to check that they are
8156 defined before using them. */
8157 bfd_byte *p = contents + rel->r_offset - d_offset;
8158 unsigned int insn = bfd_get_32 (output_bfd, p);
8159 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8161 bfd_put_32 (output_bfd, insn, p);
8164 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8165 /* The TPREL16 relocs shouldn't really be used in shared
8166 libs as they will result in DT_TEXTREL being set, but
8167 support them anyway. */
8171 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8174 case R_PPC_DTPREL32:
8175 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8178 case R_PPC_DTPMOD32:
8184 case R_PPC_REL16_LO:
8185 case R_PPC_REL16_HI:
8186 case R_PPC_REL16_HA:
8190 if (h == NULL || h == htab->elf.hgot)
8196 case R_PPC_ADDR16_LO:
8197 case R_PPC_ADDR16_HI:
8198 case R_PPC_ADDR16_HA:
8203 case R_PPC_VLE_REL8:
8204 case R_PPC_VLE_REL15:
8205 case R_PPC_VLE_REL24:
8208 case R_PPC_REL14_BRTAKEN:
8209 case R_PPC_REL14_BRNTAKEN:
8210 /* If these relocations are not to a named symbol, they can be
8211 handled right here, no need to bother the dynamic linker. */
8212 if (SYMBOL_CALLS_LOCAL (info, h)
8213 || h == htab->elf.hgot)
8219 case R_PPC_ADDR14_BRTAKEN:
8220 case R_PPC_ADDR14_BRNTAKEN:
8221 if (h != NULL && !info->shared)
8226 if ((input_section->flags & SEC_ALLOC) == 0
8232 && ((h->root.type == bfd_link_hash_undefined
8233 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
8234 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
8235 || (h->root.type == bfd_link_hash_undefweak
8236 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
8237 && (must_be_dyn_reloc (info, r_type)
8238 || !SYMBOL_CALLS_LOCAL (info, h)))
8239 || (ELIMINATE_COPY_RELOCS
8244 && !h->def_regular))
8249 fprintf (stderr, "ppc_elf_relocate_section needs to "
8250 "create relocation for %s\n",
8251 (h && h->root.root.string
8252 ? h->root.root.string : "<unknown>"));
8255 /* When generating a shared object, these relocations
8256 are copied into the output file to be resolved at run
8260 sreloc = elf_section_data (input_section)->sreloc;
8261 if (!htab->elf.dynamic_sections_created)
8262 sreloc = htab->reliplt;
8268 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8271 if (outrel.r_offset == (bfd_vma) -1
8272 || outrel.r_offset == (bfd_vma) -2)
8273 skip = (int) outrel.r_offset;
8274 outrel.r_offset += (input_section->output_section->vma
8275 + input_section->output_offset);
8278 memset (&outrel, 0, sizeof outrel);
8280 && (h->root.type == bfd_link_hash_undefined
8281 || h->root.type == bfd_link_hash_undefweak))
8282 || !SYMBOL_REFERENCES_LOCAL (info, h))
8284 BFD_ASSERT (h->dynindx != -1);
8285 unresolved_reloc = FALSE;
8286 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
8287 outrel.r_addend = rel->r_addend;
8291 outrel.r_addend = relocation + rel->r_addend;
8293 if (r_type != R_PPC_ADDR32)
8299 /* If we get here when building a static
8300 executable, then the libc startup function
8301 responsible for applying indirect function
8302 relocations is going to complain about
8304 If we get here when building a dynamic
8305 executable, it will be because we have
8306 a text relocation. The dynamic loader
8307 will set the text segment writable and
8308 non-executable to apply text relocations.
8309 So we'll segfault when trying to run the
8310 indirection function to resolve the reloc. */
8311 info->callbacks->einfo
8312 (_("%P: %H: relocation %s for indirect "
8313 "function %s unsupported\n"),
8314 input_bfd, input_section, rel->r_offset,
8319 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
8321 else if (sec == NULL || sec->owner == NULL)
8323 bfd_set_error (bfd_error_bad_value);
8330 /* We are turning this relocation into one
8331 against a section symbol. It would be
8332 proper to subtract the symbol's value,
8333 osec->vma, from the emitted reloc addend,
8334 but ld.so expects buggy relocs.
8335 FIXME: Why not always use a zero index? */
8336 osec = sec->output_section;
8337 indx = elf_section_data (osec)->dynindx;
8340 osec = htab->elf.text_index_section;
8341 indx = elf_section_data (osec)->dynindx;
8343 BFD_ASSERT (indx != 0);
8346 printf ("indx=%ld section=%s flags=%08x name=%s\n",
8347 indx, osec->name, osec->flags,
8348 h->root.root.string);
8352 outrel.r_info = ELF32_R_INFO (indx, r_type);
8354 else if (ifunc != NULL)
8355 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8357 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
8360 loc = sreloc->contents;
8361 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8362 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
8367 /* This reloc will be computed at runtime. We clear the memory
8368 so that it contains predictable value. */
8370 && ((input_section->flags & SEC_ALLOC) != 0
8371 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
8373 relocation = howto->pc_relative ? outrel.r_offset : 0;
8380 case R_PPC_RELAX_PLT:
8381 case R_PPC_RELAX_PLTREL24:
8384 struct plt_entry *ent;
8385 bfd_vma got2_addend = 0;
8387 if (r_type == R_PPC_RELAX_PLTREL24)
8390 got2_addend = addend;
8393 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
8394 if (htab->plt_type == PLT_NEW)
8395 relocation = (htab->glink->output_section->vma
8396 + htab->glink->output_offset
8397 + ent->glink_offset);
8399 relocation = (htab->plt->output_section->vma
8400 + htab->plt->output_offset
8407 relocation -= (input_section->output_section->vma
8408 + input_section->output_offset
8409 + rel->r_offset - 4);
8415 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
8416 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
8418 /* We're clearing the bits for R_PPC_ADDR16_HA
8419 and R_PPC_ADDR16_LO here. */
8423 /* t0 is HA, t1 is LO */
8424 relocation += addend;
8425 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
8426 t1 |= relocation & 0xffff;
8428 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
8429 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
8431 /* Rewrite the reloc and convert one of the trailing nop
8432 relocs to describe this relocation. */
8433 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
8434 /* The relocs are at the bottom 2 bytes */
8435 rel[0].r_offset += 2;
8436 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
8437 rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
8438 rel[1].r_offset += 4;
8439 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
8444 /* Indirect .sdata relocation. */
8445 case R_PPC_EMB_SDAI16:
8446 BFD_ASSERT (htab->sdata[0].section != NULL);
8447 if (!is_static_defined (htab->sdata[0].sym))
8449 unresolved_reloc = TRUE;
8453 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
8454 h, relocation, rel);
8458 /* Indirect .sdata2 relocation. */
8459 case R_PPC_EMB_SDA2I16:
8460 BFD_ASSERT (htab->sdata[1].section != NULL);
8461 if (!is_static_defined (htab->sdata[1].sym))
8463 unresolved_reloc = TRUE;
8467 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
8468 h, relocation, rel);
8472 /* Handle the TOC16 reloc. We want to use the offset within the .got
8473 section, not the actual VMA. This is appropriate when generating
8474 an embedded ELF object, for which the .got section acts like the
8475 AIX .toc section. */
8476 case R_PPC_TOC16: /* phony GOT16 relocations */
8477 if (sec == NULL || sec->output_section == NULL)
8479 unresolved_reloc = TRUE;
8482 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
8484 || strcmp (bfd_get_section_name (sec->owner, sec),
8487 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
8490 case R_PPC_PLTREL24:
8491 if (h != NULL && ifunc == NULL)
8493 struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2,
8494 info->shared ? addend : 0);
8496 || htab->plt == NULL)
8498 /* We didn't make a PLT entry for this symbol. This
8499 happens when statically linking PIC code, or when
8500 using -Bsymbolic. */
8504 /* Relocation is to the entry for this symbol in the
8505 procedure linkage table. */
8506 unresolved_reloc = FALSE;
8507 if (htab->plt_type == PLT_NEW)
8508 relocation = (htab->glink->output_section->vma
8509 + htab->glink->output_offset
8510 + ent->glink_offset);
8512 relocation = (htab->plt->output_section->vma
8513 + htab->plt->output_offset
8518 /* R_PPC_PLTREL24 is rather special. If non-zero, the
8519 addend specifies the GOT pointer offset within .got2.
8520 Don't apply it to the relocation field. */
8524 /* Relocate against _SDA_BASE_. */
8525 case R_PPC_SDAREL16:
8528 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
8531 || sec->output_section == NULL
8532 || !is_static_defined (sda))
8534 unresolved_reloc = TRUE;
8537 addend -= SYM_VAL (sda);
8539 name = bfd_get_section_name (output_bfd, sec->output_section);
8540 if (! ((CONST_STRNEQ (name, ".sdata")
8541 && (name[6] == 0 || name[6] == '.'))
8542 || (CONST_STRNEQ (name, ".sbss")
8543 && (name[5] == 0 || name[5] == '.'))))
8545 info->callbacks->einfo
8546 (_("%P: %B: the target (%s) of a %s relocation is "
8547 "in the wrong output section (%s)\n"),
8556 /* Relocate against _SDA2_BASE_. */
8557 case R_PPC_EMB_SDA2REL:
8560 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
8563 || sec->output_section == NULL
8564 || !is_static_defined (sda))
8566 unresolved_reloc = TRUE;
8569 addend -= SYM_VAL (sda);
8571 name = bfd_get_section_name (output_bfd, sec->output_section);
8572 if (! (CONST_STRNEQ (name, ".sdata2")
8573 || CONST_STRNEQ (name, ".sbss2")))
8575 info->callbacks->einfo
8576 (_("%P: %B: the target (%s) of a %s relocation is "
8577 "in the wrong output section (%s)\n"),
8586 case R_PPC_VLE_LO16A:
8587 relocation = (relocation + addend) & 0xffff;
8588 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8589 relocation, split16a_type);
8592 case R_PPC_VLE_LO16D:
8593 relocation = (relocation + addend) & 0xffff;
8594 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8595 relocation, split16d_type);
8598 case R_PPC_VLE_HI16A:
8599 relocation = ((relocation + addend) >> 16) & 0xffff;
8600 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8601 relocation, split16a_type);
8604 case R_PPC_VLE_HI16D:
8605 relocation = ((relocation + addend) >> 16) & 0xffff;
8606 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8607 relocation, split16d_type);
8610 case R_PPC_VLE_HA16A:
8612 bfd_vma value = relocation + addend;
8613 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8614 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8615 value, split16a_type);
8619 case R_PPC_VLE_HA16D:
8621 bfd_vma value = relocation + addend;
8622 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8623 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8624 value, split16d_type);
8628 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
8629 case R_PPC_EMB_SDA21:
8630 case R_PPC_VLE_SDA21:
8631 case R_PPC_EMB_RELSDA:
8632 case R_PPC_VLE_SDA21_LO:
8636 struct elf_link_hash_entry *sda = NULL;
8638 if (sec == NULL || sec->output_section == NULL)
8640 unresolved_reloc = TRUE;
8644 name = bfd_get_section_name (output_bfd, sec->output_section);
8645 if (((CONST_STRNEQ (name, ".sdata")
8646 && (name[6] == 0 || name[6] == '.'))
8647 || (CONST_STRNEQ (name, ".sbss")
8648 && (name[5] == 0 || name[5] == '.'))))
8651 sda = htab->sdata[0].sym;
8653 else if (CONST_STRNEQ (name, ".sdata2")
8654 || CONST_STRNEQ (name, ".sbss2"))
8657 sda = htab->sdata[1].sym;
8659 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
8660 || strcmp (name, ".PPC.EMB.sbss0") == 0)
8666 info->callbacks->einfo
8667 (_("%P: %B: the target (%s) of a %s relocation is "
8668 "in the wrong output section (%s)\n"),
8674 bfd_set_error (bfd_error_bad_value);
8681 if (!is_static_defined (sda))
8683 unresolved_reloc = TRUE;
8686 addend -= SYM_VAL (sda);
8690 && (r_type == R_PPC_VLE_SDA21
8691 || r_type == R_PPC_VLE_SDA21_LO))
8693 /* Use the split20 format. */
8694 bfd_vma insn, bits12to15, bits21to31;
8695 bfd_vma value = (relocation + rel->r_offset) & 0xffff;
8696 /* Propagate sign bit, if necessary. */
8697 insn = (value & 0x8000) ? 0x70107800 : 0x70000000;
8698 bits12to15 = value & 0x700;
8699 bits21to31 = value & 0x7ff;
8702 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8705 else if (r_type == R_PPC_EMB_SDA21
8706 || r_type == R_PPC_VLE_SDA21
8707 || r_type == R_PPC_VLE_SDA21_LO)
8709 bfd_vma insn; /* Fill in register field. */
8711 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
8712 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
8713 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8718 case R_PPC_VLE_SDAREL_LO16A:
8719 case R_PPC_VLE_SDAREL_LO16D:
8720 case R_PPC_VLE_SDAREL_HI16A:
8721 case R_PPC_VLE_SDAREL_HI16D:
8722 case R_PPC_VLE_SDAREL_HA16A:
8723 case R_PPC_VLE_SDAREL_HA16D:
8728 struct elf_link_hash_entry *sda = NULL;
8730 if (sec == NULL || sec->output_section == NULL)
8732 unresolved_reloc = TRUE;
8736 name = bfd_get_section_name (output_bfd, sec->output_section);
8737 if (((CONST_STRNEQ (name, ".sdata")
8738 && (name[6] == 0 || name[6] == '.'))
8739 || (CONST_STRNEQ (name, ".sbss")
8740 && (name[5] == 0 || name[5] == '.'))))
8743 sda = htab->sdata[0].sym;
8745 else if (CONST_STRNEQ (name, ".sdata2")
8746 || CONST_STRNEQ (name, ".sbss2"))
8749 sda = htab->sdata[1].sym;
8753 (*_bfd_error_handler)
8754 (_("%B: the target (%s) of a %s relocation is "
8755 "in the wrong output section (%s)"),
8761 bfd_set_error (bfd_error_bad_value);
8768 if (!is_static_defined (sda))
8770 unresolved_reloc = TRUE;
8775 value = sda->root.u.def.section->output_section->vma
8776 + sda->root.u.def.section->output_offset;
8778 if (r_type == R_PPC_VLE_SDAREL_LO16A)
8780 value = (value + addend) & 0xffff;
8781 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8782 value, split16a_type);
8784 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
8786 value = (value + addend) & 0xffff;
8787 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8788 value, split16d_type);
8790 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
8792 value = ((value + addend) >> 16) & 0xffff;
8793 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8794 value, split16a_type);
8796 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
8798 value = ((value + addend) >> 16) & 0xffff;
8799 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8800 value, split16d_type);
8802 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
8805 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8806 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8807 value, split16a_type);
8809 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
8812 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8813 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8814 value, split16d_type);
8819 /* Relocate against the beginning of the section. */
8821 case R_PPC_SECTOFF_LO:
8822 case R_PPC_SECTOFF_HI:
8823 case R_PPC_SECTOFF_HA:
8824 if (sec == NULL || sec->output_section == NULL)
8826 unresolved_reloc = TRUE;
8829 addend -= sec->output_section->vma;
8832 /* Negative relocations. */
8833 case R_PPC_EMB_NADDR32:
8834 case R_PPC_EMB_NADDR16:
8835 case R_PPC_EMB_NADDR16_LO:
8836 case R_PPC_EMB_NADDR16_HI:
8837 case R_PPC_EMB_NADDR16_HA:
8838 addend -= 2 * relocation;
8842 case R_PPC_GLOB_DAT:
8843 case R_PPC_JMP_SLOT:
8844 case R_PPC_RELATIVE:
8845 case R_PPC_IRELATIVE:
8847 case R_PPC_PLTREL32:
8848 case R_PPC_PLT16_LO:
8849 case R_PPC_PLT16_HI:
8850 case R_PPC_PLT16_HA:
8852 case R_PPC_EMB_RELSEC16:
8853 case R_PPC_EMB_RELST_LO:
8854 case R_PPC_EMB_RELST_HI:
8855 case R_PPC_EMB_RELST_HA:
8856 case R_PPC_EMB_BIT_FLD:
8857 info->callbacks->einfo
8858 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
8863 bfd_set_error (bfd_error_invalid_operation);
8868 /* Do any further special processing. */
8874 case R_PPC_ADDR16_HA:
8875 case R_PPC_REL16_HA:
8876 case R_PPC_SECTOFF_HA:
8877 case R_PPC_TPREL16_HA:
8878 case R_PPC_DTPREL16_HA:
8879 case R_PPC_EMB_NADDR16_HA:
8880 case R_PPC_EMB_RELST_HA:
8881 /* It's just possible that this symbol is a weak symbol
8882 that's not actually defined anywhere. In that case,
8883 'sec' would be NULL, and we should leave the symbol
8884 alone (it will be set to zero elsewhere in the link). */
8889 case R_PPC_PLT16_HA:
8890 case R_PPC_GOT16_HA:
8891 case R_PPC_GOT_TLSGD16_HA:
8892 case R_PPC_GOT_TLSLD16_HA:
8893 case R_PPC_GOT_TPREL16_HA:
8894 case R_PPC_GOT_DTPREL16_HA:
8895 /* Add 0x10000 if sign bit in 0:15 is set.
8896 Bits 0:15 are not used. */
8901 case R_PPC_ADDR16_LO:
8903 case R_PPC_GOT16_LO:
8904 case R_PPC_SDAREL16:
8906 case R_PPC_SECTOFF_LO:
8907 case R_PPC_DTPREL16:
8908 case R_PPC_DTPREL16_LO:
8910 case R_PPC_TPREL16_LO:
8911 case R_PPC_GOT_TLSGD16:
8912 case R_PPC_GOT_TLSGD16_LO:
8913 case R_PPC_GOT_TLSLD16:
8914 case R_PPC_GOT_TLSLD16_LO:
8915 case R_PPC_GOT_DTPREL16:
8916 case R_PPC_GOT_DTPREL16_LO:
8917 case R_PPC_GOT_TPREL16:
8918 case R_PPC_GOT_TPREL16_LO:
8920 /* The 32-bit ABI lacks proper relocations to deal with
8921 certain 64-bit instructions. Prevent damage to bits
8922 that make up part of the insn opcode. */
8923 unsigned int insn, mask, lobit;
8925 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
8927 if (is_insn_ds_form (insn))
8929 else if (is_insn_dq_form (insn))
8933 lobit = mask & (relocation + addend);
8937 info->callbacks->einfo
8938 (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
8939 input_bfd, input_section, rel->r_offset,
8940 howto->name, sym_name, mask + 1);
8941 bfd_set_error (bfd_error_bad_value);
8944 addend += insn & mask;
8950 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
8951 "offset = %ld, addend = %ld\n",
8956 (long) rel->r_offset,
8960 if (unresolved_reloc
8961 && !((input_section->flags & SEC_DEBUGGING) != 0
8963 && _bfd_elf_section_offset (output_bfd, info, input_section,
8964 rel->r_offset) != (bfd_vma) -1)
8966 info->callbacks->einfo
8967 (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
8968 input_bfd, input_section, rel->r_offset,
8974 r = _bfd_final_link_relocate (howto,
8982 if (r != bfd_reloc_ok)
8984 if (r == bfd_reloc_overflow)
8989 && h->root.type == bfd_link_hash_undefweak
8990 && howto->pc_relative)
8992 /* Assume this is a call protected by other code that
8993 detect the symbol is undefined. If this is the case,
8994 we can safely ignore the overflow. If not, the
8995 program is hosed anyway, and a little warning isn't
9001 if (! (*info->callbacks->reloc_overflow) (info,
9002 (h ? &h->root : NULL),
9013 info->callbacks->einfo
9014 (_("%P: %H: %s reloc against `%s': error %d\n"),
9015 input_bfd, input_section, rel->r_offset,
9016 howto->name, sym_name, (int) r);
9023 fprintf (stderr, "\n");
9029 /* Finish up dynamic symbol handling. We set the contents of various
9030 dynamic sections here. */
9033 ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
9034 struct bfd_link_info *info,
9035 struct elf_link_hash_entry *h,
9036 Elf_Internal_Sym *sym)
9038 struct ppc_elf_link_hash_table *htab;
9039 struct plt_entry *ent;
9040 bfd_boolean doneone;
9043 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
9044 h->root.root.string);
9047 htab = ppc_elf_hash_table (info);
9048 BFD_ASSERT (htab->elf.dynobj != NULL);
9051 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
9052 if (ent->plt.offset != (bfd_vma) -1)
9056 Elf_Internal_Rela rela;
9058 bfd_vma reloc_index;
9060 if (htab->plt_type == PLT_NEW
9061 || !htab->elf.dynamic_sections_created
9062 || h->dynindx == -1)
9063 reloc_index = ent->plt.offset / 4;
9066 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
9067 / htab->plt_slot_size);
9068 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
9069 && htab->plt_type == PLT_OLD)
9070 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
9073 /* This symbol has an entry in the procedure linkage table.
9075 if (htab->plt_type == PLT_VXWORKS
9076 && htab->elf.dynamic_sections_created
9077 && h->dynindx != -1)
9080 const bfd_vma *plt_entry;
9082 /* The first three entries in .got.plt are reserved. */
9083 got_offset = (reloc_index + 3) * 4;
9085 /* Use the right PLT. */
9086 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
9087 : ppc_elf_vxworks_plt_entry;
9089 /* Fill in the .plt on VxWorks. */
9092 bfd_put_32 (output_bfd,
9093 plt_entry[0] | PPC_HA (got_offset),
9094 htab->plt->contents + ent->plt.offset + 0);
9095 bfd_put_32 (output_bfd,
9096 plt_entry[1] | PPC_LO (got_offset),
9097 htab->plt->contents + ent->plt.offset + 4);
9101 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9103 bfd_put_32 (output_bfd,
9104 plt_entry[0] | PPC_HA (got_loc),
9105 htab->plt->contents + ent->plt.offset + 0);
9106 bfd_put_32 (output_bfd,
9107 plt_entry[1] | PPC_LO (got_loc),
9108 htab->plt->contents + ent->plt.offset + 4);
9111 bfd_put_32 (output_bfd, plt_entry[2],
9112 htab->plt->contents + ent->plt.offset + 8);
9113 bfd_put_32 (output_bfd, plt_entry[3],
9114 htab->plt->contents + ent->plt.offset + 12);
9116 /* This instruction is an immediate load. The value loaded is
9117 the byte offset of the R_PPC_JMP_SLOT relocation from the
9118 start of the .rela.plt section. The value is stored in the
9119 low-order 16 bits of the load instruction. */
9120 /* NOTE: It appears that this is now an index rather than a
9121 prescaled offset. */
9122 bfd_put_32 (output_bfd,
9123 plt_entry[4] | reloc_index,
9124 htab->plt->contents + ent->plt.offset + 16);
9125 /* This instruction is a PC-relative branch whose target is
9126 the start of the PLT section. The address of this branch
9127 instruction is 20 bytes beyond the start of this PLT entry.
9128 The address is encoded in bits 6-29, inclusive. The value
9129 stored is right-shifted by two bits, permitting a 26-bit
9131 bfd_put_32 (output_bfd,
9133 | (-(ent->plt.offset + 20) & 0x03fffffc)),
9134 htab->plt->contents + ent->plt.offset + 20);
9135 bfd_put_32 (output_bfd, plt_entry[6],
9136 htab->plt->contents + ent->plt.offset + 24);
9137 bfd_put_32 (output_bfd, plt_entry[7],
9138 htab->plt->contents + ent->plt.offset + 28);
9140 /* Fill in the GOT entry corresponding to this PLT slot with
9141 the address immediately after the "bctr" instruction
9142 in this PLT entry. */
9143 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
9144 + htab->plt->output_offset
9145 + ent->plt.offset + 16),
9146 htab->sgotplt->contents + got_offset);
9150 /* Fill in a couple of entries in .rela.plt.unloaded. */
9151 loc = htab->srelplt2->contents
9152 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
9153 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
9154 * sizeof (Elf32_External_Rela));
9156 /* Provide the @ha relocation for the first instruction. */
9157 rela.r_offset = (htab->plt->output_section->vma
9158 + htab->plt->output_offset
9159 + ent->plt.offset + 2);
9160 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9162 rela.r_addend = got_offset;
9163 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9164 loc += sizeof (Elf32_External_Rela);
9166 /* Provide the @l relocation for the second instruction. */
9167 rela.r_offset = (htab->plt->output_section->vma
9168 + htab->plt->output_offset
9169 + ent->plt.offset + 6);
9170 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9172 rela.r_addend = got_offset;
9173 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9174 loc += sizeof (Elf32_External_Rela);
9176 /* Provide a relocation for the GOT entry corresponding to this
9177 PLT slot. Point it at the middle of the .plt entry. */
9178 rela.r_offset = (htab->sgotplt->output_section->vma
9179 + htab->sgotplt->output_offset
9181 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9183 rela.r_addend = ent->plt.offset + 16;
9184 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9187 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
9188 In particular, the offset for the relocation is not the
9189 address of the PLT entry for this function, as specified
9190 by the ABI. Instead, the offset is set to the address of
9191 the GOT slot for this function. See EABI 4.4.4.1. */
9192 rela.r_offset = (htab->sgotplt->output_section->vma
9193 + htab->sgotplt->output_offset
9199 asection *splt = htab->plt;
9200 if (!htab->elf.dynamic_sections_created
9201 || h->dynindx == -1)
9204 rela.r_offset = (splt->output_section->vma
9205 + splt->output_offset
9207 if (htab->plt_type == PLT_OLD
9208 || !htab->elf.dynamic_sections_created
9209 || h->dynindx == -1)
9211 /* We don't need to fill in the .plt. The ppc dynamic
9212 linker will fill it in. */
9216 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
9217 + htab->glink->output_section->vma
9218 + htab->glink->output_offset);
9219 bfd_put_32 (output_bfd, val,
9220 splt->contents + ent->plt.offset);
9224 /* Fill in the entry in the .rela.plt section. */
9226 if (!htab->elf.dynamic_sections_created
9227 || h->dynindx == -1)
9229 BFD_ASSERT (h->type == STT_GNU_IFUNC
9231 && (h->root.type == bfd_link_hash_defined
9232 || h->root.type == bfd_link_hash_defweak));
9233 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
9234 rela.r_addend = SYM_VAL (h);
9237 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
9239 if (!htab->elf.dynamic_sections_created
9240 || h->dynindx == -1)
9241 loc = (htab->reliplt->contents
9242 + (htab->reliplt->reloc_count++
9243 * sizeof (Elf32_External_Rela)));
9245 loc = (htab->relplt->contents
9246 + reloc_index * sizeof (Elf32_External_Rela));
9247 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9249 if (!h->def_regular)
9251 /* Mark the symbol as undefined, rather than as
9252 defined in the .plt section. Leave the value if
9253 there were any relocations where pointer equality
9254 matters (this is a clue for the dynamic linker, to
9255 make function pointer comparisons work between an
9256 application and shared library), otherwise set it
9258 sym->st_shndx = SHN_UNDEF;
9259 if (!h->pointer_equality_needed)
9261 else if (!h->ref_regular_nonweak)
9263 /* This breaks function pointer comparisons, but
9264 that is better than breaking tests for a NULL
9265 function pointer. */
9269 else if (h->type == STT_GNU_IFUNC
9272 /* Set the value of ifunc symbols in a non-pie
9273 executable to the glink entry. This is to avoid
9274 text relocations. We can't do this for ifunc in
9275 allocate_dynrelocs, as we do for normal dynamic
9276 function symbols with plt entries, because we need
9277 to keep the original value around for the ifunc
9279 sym->st_shndx = (_bfd_elf_section_from_bfd_section
9280 (output_bfd, htab->glink->output_section));
9281 sym->st_value = (ent->glink_offset
9282 + htab->glink->output_offset
9283 + htab->glink->output_section->vma);
9288 if (htab->plt_type == PLT_NEW
9289 || !htab->elf.dynamic_sections_created
9290 || h->dynindx == -1)
9293 asection *splt = htab->plt;
9294 if (!htab->elf.dynamic_sections_created
9295 || h->dynindx == -1)
9298 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
9300 if (h == htab->tls_get_addr && !htab->no_tls_get_addr_opt)
9302 bfd_put_32 (output_bfd, LWZ_11_3, p);
9304 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
9306 bfd_put_32 (output_bfd, MR_0_3, p);
9308 bfd_put_32 (output_bfd, CMPWI_11_0, p);
9310 bfd_put_32 (output_bfd, ADD_3_12_2, p);
9312 bfd_put_32 (output_bfd, BEQLR, p);
9314 bfd_put_32 (output_bfd, MR_3_0, p);
9316 bfd_put_32 (output_bfd, NOP, p);
9320 write_glink_stub (ent, splt, p, info);
9323 /* We only need one non-PIC glink stub. */
9333 Elf_Internal_Rela rela;
9336 /* This symbols needs a copy reloc. Set it up. */
9339 fprintf (stderr, ", copy");
9342 BFD_ASSERT (h->dynindx != -1);
9344 if (ppc_elf_hash_entry (h)->has_sda_refs)
9348 BFD_ASSERT (s != NULL);
9350 rela.r_offset = SYM_VAL (h);
9351 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
9353 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
9354 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9358 fprintf (stderr, "\n");
9364 static enum elf_reloc_type_class
9365 ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
9367 switch (ELF32_R_TYPE (rela->r_info))
9369 case R_PPC_RELATIVE:
9370 return reloc_class_relative;
9373 case R_PPC_JMP_SLOT:
9374 return reloc_class_plt;
9376 return reloc_class_copy;
9378 return reloc_class_normal;
9382 /* Finish up the dynamic sections. */
9385 ppc_elf_finish_dynamic_sections (bfd *output_bfd,
9386 struct bfd_link_info *info)
9390 struct ppc_elf_link_hash_table *htab;
9393 bfd_boolean ret = TRUE;
9396 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
9399 htab = ppc_elf_hash_table (info);
9400 dynobj = elf_hash_table (info)->dynobj;
9401 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
9402 if (htab->is_vxworks)
9403 splt = bfd_get_linker_section (dynobj, ".plt");
9408 if (htab->elf.hgot != NULL)
9409 got = SYM_VAL (htab->elf.hgot);
9411 if (htab->elf.dynamic_sections_created)
9413 Elf32_External_Dyn *dyncon, *dynconend;
9415 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
9417 dyncon = (Elf32_External_Dyn *) sdyn->contents;
9418 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
9419 for (; dyncon < dynconend; dyncon++)
9421 Elf_Internal_Dyn dyn;
9424 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
9429 if (htab->is_vxworks)
9433 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9437 dyn.d_un.d_val = htab->relplt->size;
9442 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9446 dyn.d_un.d_ptr = got;
9450 if (htab->is_vxworks)
9453 dyn.d_un.d_ptr -= htab->relplt->size;
9459 if (htab->is_vxworks
9460 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
9465 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
9469 if (htab->got != NULL)
9471 if (htab->elf.hgot->root.u.def.section == htab->got
9472 || htab->elf.hgot->root.u.def.section == htab->sgotplt)
9474 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
9476 p += htab->elf.hgot->root.u.def.value;
9477 if (htab->plt_type == PLT_OLD)
9479 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
9480 so that a function can easily find the address of
9481 _GLOBAL_OFFSET_TABLE_. */
9482 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
9483 < htab->elf.hgot->root.u.def.section->size);
9484 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
9489 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
9490 BFD_ASSERT (htab->elf.hgot->root.u.def.value
9491 < htab->elf.hgot->root.u.def.section->size);
9492 bfd_put_32 (output_bfd, val, p);
9497 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
9498 htab->elf.hgot->root.root.string,
9499 (htab->sgotplt != NULL
9500 ? htab->sgotplt->name : htab->got->name));
9501 bfd_set_error (bfd_error_bad_value);
9505 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
9508 /* Fill in the first entry in the VxWorks procedure linkage table. */
9509 if (splt && splt->size > 0)
9511 /* Use the right PLT. */
9512 const bfd_vma *plt_entry = (info->shared
9513 ? ppc_elf_vxworks_pic_plt0_entry
9514 : ppc_elf_vxworks_plt0_entry);
9518 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9520 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9521 splt->contents + 0);
9522 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9523 splt->contents + 4);
9527 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
9528 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
9530 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
9531 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
9532 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
9533 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
9534 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
9535 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
9539 Elf_Internal_Rela rela;
9542 loc = htab->srelplt2->contents;
9544 /* Output the @ha relocation for the first instruction. */
9545 rela.r_offset = (htab->plt->output_section->vma
9546 + htab->plt->output_offset
9548 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9550 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9551 loc += sizeof (Elf32_External_Rela);
9553 /* Output the @l relocation for the second instruction. */
9554 rela.r_offset = (htab->plt->output_section->vma
9555 + htab->plt->output_offset
9557 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9559 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9560 loc += sizeof (Elf32_External_Rela);
9562 /* Fix up the remaining relocations. They may have the wrong
9563 symbol index for _G_O_T_ or _P_L_T_ depending on the order
9564 in which symbols were output. */
9565 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
9567 Elf_Internal_Rela rel;
9569 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9570 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9571 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9572 loc += sizeof (Elf32_External_Rela);
9574 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9575 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9576 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9577 loc += sizeof (Elf32_External_Rela);
9579 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9580 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9581 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9582 loc += sizeof (Elf32_External_Rela);
9587 if (htab->glink != NULL
9588 && htab->glink->contents != NULL
9589 && htab->elf.dynamic_sections_created)
9592 unsigned char *endp;
9597 * PIC glink code is the following:
9599 * # ith PLT code stub.
9600 * addis 11,30,(plt+(i-1)*4-got)@ha
9601 * lwz 11,(plt+(i-1)*4-got)@l(11)
9605 * # A table of branches, one for each plt entry.
9606 * # The idea is that the plt call stub loads ctr and r11 with these
9607 * # addresses, so (r11 - res_0) gives the plt index * 4.
9608 * res_0: b PLTresolve
9609 * res_1: b PLTresolve
9611 * # Some number of entries towards the end can be nops
9617 * addis 11,11,(1f-res_0)@ha
9620 * 1: addi 11,11,(1b-res_0)@l
9623 * sub 11,11,12 # r11 = index * 4
9624 * addis 12,12,(got+4-1b)@ha
9625 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
9626 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
9629 * add 11,0,11 # r11 = index * 12 = reloc offset.
9632 static const unsigned int pic_plt_resolve[] =
9653 * Non-PIC glink code is a little simpler.
9655 * # ith PLT code stub.
9656 * lis 11,(plt+(i-1)*4)@ha
9657 * lwz 11,(plt+(i-1)*4)@l(11)
9661 * The branch table is the same, then comes
9665 * addis 11,11,(-res_0)@ha
9666 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
9667 * addi 11,11,(-res_0)@l # r11 = index * 4
9670 * lwz 12,(got+8)@l(12) # got[2] contains the map address
9671 * add 11,0,11 # r11 = index * 12 = reloc offset.
9674 static const unsigned int plt_resolve[] =
9694 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
9696 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
9699 /* Build the branch table, one for each plt entry (less one),
9700 and perhaps some padding. */
9701 p = htab->glink->contents;
9702 p += htab->glink_pltresolve;
9703 endp = htab->glink->contents;
9704 endp += htab->glink->size - GLINK_PLTRESOLVE;
9705 while (p < endp - 8 * 4)
9707 bfd_put_32 (output_bfd, B + endp - p, p);
9712 bfd_put_32 (output_bfd, NOP, p);
9716 res0 = (htab->glink_pltresolve
9717 + htab->glink->output_section->vma
9718 + htab->glink->output_offset);
9720 /* Last comes the PLTresolve stub. */
9725 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
9727 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
9730 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
9732 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
9733 + htab->glink->output_section->vma
9734 + htab->glink->output_offset);
9736 bfd_put_32 (output_bfd,
9737 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
9738 bfd_put_32 (output_bfd,
9739 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
9740 bfd_put_32 (output_bfd,
9741 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
9742 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
9744 bfd_put_32 (output_bfd,
9745 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
9746 bfd_put_32 (output_bfd,
9747 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
9751 bfd_put_32 (output_bfd,
9752 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
9753 bfd_put_32 (output_bfd,
9754 LWZ_12_12 + 4, p + 9*4);
9759 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
9761 bfd_put_32 (output_bfd, plt_resolve[i], p);
9764 p -= 4 * ARRAY_SIZE (plt_resolve);
9766 bfd_put_32 (output_bfd,
9767 LIS_12 + PPC_HA (got + 4), p + 0*4);
9768 bfd_put_32 (output_bfd,
9769 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
9770 bfd_put_32 (output_bfd,
9771 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
9772 if (PPC_HA (got + 4) == PPC_HA (got + 8))
9774 bfd_put_32 (output_bfd,
9775 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
9776 bfd_put_32 (output_bfd,
9777 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
9781 bfd_put_32 (output_bfd,
9782 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
9783 bfd_put_32 (output_bfd,
9784 LWZ_12_12 + 4, p + 6*4);
9789 if (htab->glink_eh_frame != NULL
9790 && htab->glink_eh_frame->contents != NULL)
9792 unsigned char *p = htab->glink_eh_frame->contents;
9795 p += sizeof (glink_eh_frame_cie);
9800 /* Offset to .glink. */
9801 val = (htab->glink->output_section->vma
9802 + htab->glink->output_offset);
9803 val -= (htab->glink_eh_frame->output_section->vma
9804 + htab->glink_eh_frame->output_offset);
9805 val -= p - htab->glink_eh_frame->contents;
9806 bfd_put_32 (htab->elf.dynobj, val, p);
9808 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
9809 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
9810 htab->glink_eh_frame,
9811 htab->glink_eh_frame->contents))
9818 #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
9819 #define TARGET_LITTLE_NAME "elf32-powerpcle"
9820 #define TARGET_BIG_SYM bfd_elf32_powerpc_vec
9821 #define TARGET_BIG_NAME "elf32-powerpc"
9822 #define ELF_ARCH bfd_arch_powerpc
9823 #define ELF_TARGET_ID PPC32_ELF_DATA
9824 #define ELF_MACHINE_CODE EM_PPC
9825 #ifdef __QNXTARGET__
9826 #define ELF_MAXPAGESIZE 0x1000
9828 #define ELF_MAXPAGESIZE 0x10000
9830 #define ELF_MINPAGESIZE 0x1000
9831 #define ELF_COMMONPAGESIZE 0x1000
9832 #define elf_info_to_howto ppc_elf_info_to_howto
9834 #ifdef EM_CYGNUS_POWERPC
9835 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
9839 #define ELF_MACHINE_ALT2 EM_PPC_OLD
9842 #define elf_backend_plt_not_loaded 1
9843 #define elf_backend_can_gc_sections 1
9844 #define elf_backend_can_refcount 1
9845 #define elf_backend_rela_normal 1
9847 #define bfd_elf32_mkobject ppc_elf_mkobject
9848 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
9849 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
9850 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
9851 #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
9852 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
9853 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
9854 #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
9856 #define elf_backend_object_p ppc_elf_object_p
9857 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
9858 #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
9859 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
9860 #define elf_backend_relocate_section ppc_elf_relocate_section
9861 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
9862 #define elf_backend_check_relocs ppc_elf_check_relocs
9863 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
9864 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
9865 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
9866 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
9867 #define elf_backend_hash_symbol ppc_elf_hash_symbol
9868 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
9869 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
9870 #define elf_backend_fake_sections ppc_elf_fake_sections
9871 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
9872 #define elf_backend_modify_segment_map ppc_elf_modify_segment_map
9873 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
9874 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
9875 #define elf_backend_write_core_note ppc_elf_write_core_note
9876 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
9877 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
9878 #define elf_backend_final_write_processing ppc_elf_final_write_processing
9879 #define elf_backend_write_section ppc_elf_write_section
9880 #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
9881 #define elf_backend_plt_sym_val ppc_elf_plt_sym_val
9882 #define elf_backend_action_discarded ppc_elf_action_discarded
9883 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
9884 #define elf_backend_post_process_headers _bfd_elf_set_osabi
9885 #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
9886 #define elf_backend_section_processing ppc_elf_section_processing
9888 #include "elf32-target.h"
9890 /* FreeBSD Target */
9892 #undef TARGET_LITTLE_SYM
9893 #undef TARGET_LITTLE_NAME
9895 #undef TARGET_BIG_SYM
9896 #define TARGET_BIG_SYM bfd_elf32_powerpc_freebsd_vec
9897 #undef TARGET_BIG_NAME
9898 #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
9901 #define ELF_OSABI ELFOSABI_FREEBSD
9904 #define elf32_bed elf32_powerpc_fbsd_bed
9906 #include "elf32-target.h"
9908 /* VxWorks Target */
9910 #undef TARGET_LITTLE_SYM
9911 #undef TARGET_LITTLE_NAME
9913 #undef TARGET_BIG_SYM
9914 #define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
9915 #undef TARGET_BIG_NAME
9916 #define TARGET_BIG_NAME "elf32-powerpc-vxworks"
9920 /* VxWorks uses the elf default section flags for .plt. */
9921 static const struct bfd_elf_special_section *
9922 ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9924 if (sec->name == NULL)
9927 if (strcmp (sec->name, ".plt") == 0)
9928 return _bfd_elf_get_sec_type_attr (abfd, sec);
9930 return ppc_elf_get_sec_type_attr (abfd, sec);
9933 /* Like ppc_elf_link_hash_table_create, but overrides
9934 appropriately for VxWorks. */
9935 static struct bfd_link_hash_table *
9936 ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
9938 struct bfd_link_hash_table *ret;
9940 ret = ppc_elf_link_hash_table_create (abfd);
9943 struct ppc_elf_link_hash_table *htab
9944 = (struct ppc_elf_link_hash_table *)ret;
9945 htab->is_vxworks = 1;
9946 htab->plt_type = PLT_VXWORKS;
9947 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
9948 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
9949 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
9954 /* Tweak magic VxWorks symbols as they are loaded. */
9956 ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
9957 struct bfd_link_info *info,
9958 Elf_Internal_Sym *sym,
9959 const char **namep ATTRIBUTE_UNUSED,
9960 flagword *flagsp ATTRIBUTE_UNUSED,
9964 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
9968 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
9972 ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
9974 ppc_elf_final_write_processing(abfd, linker);
9975 elf_vxworks_final_write_processing(abfd, linker);
9978 /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
9980 #undef elf_backend_want_plt_sym
9981 #define elf_backend_want_plt_sym 1
9982 #undef elf_backend_want_got_plt
9983 #define elf_backend_want_got_plt 1
9984 #undef elf_backend_got_symbol_offset
9985 #define elf_backend_got_symbol_offset 0
9986 #undef elf_backend_plt_not_loaded
9987 #define elf_backend_plt_not_loaded 0
9988 #undef elf_backend_plt_readonly
9989 #define elf_backend_plt_readonly 1
9990 #undef elf_backend_got_header_size
9991 #define elf_backend_got_header_size 12
9993 #undef bfd_elf32_get_synthetic_symtab
9995 #undef bfd_elf32_bfd_link_hash_table_create
9996 #define bfd_elf32_bfd_link_hash_table_create \
9997 ppc_elf_vxworks_link_hash_table_create
9998 #undef elf_backend_add_symbol_hook
9999 #define elf_backend_add_symbol_hook \
10000 ppc_elf_vxworks_add_symbol_hook
10001 #undef elf_backend_link_output_symbol_hook
10002 #define elf_backend_link_output_symbol_hook \
10003 elf_vxworks_link_output_symbol_hook
10004 #undef elf_backend_final_write_processing
10005 #define elf_backend_final_write_processing \
10006 ppc_elf_vxworks_final_write_processing
10007 #undef elf_backend_get_sec_type_attr
10008 #define elf_backend_get_sec_type_attr \
10009 ppc_elf_vxworks_get_sec_type_attr
10010 #undef elf_backend_emit_relocs
10011 #define elf_backend_emit_relocs \
10012 elf_vxworks_emit_relocs
10015 #define elf32_bed ppc_elf_vxworks_bed
10016 #undef elf_backend_post_process_headers
10018 #include "elf32-target.h"
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