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 /* Used to track dynamic relocations for local symbols. */
3087 struct ppc_dyn_relocs
3089 struct ppc_dyn_relocs *next;
3091 /* The input section of the reloc. */
3094 /* Total number of relocs copied for the input section. */
3095 unsigned int count : 31;
3097 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3098 unsigned int ifunc : 1;
3101 /* PPC ELF linker hash entry. */
3103 struct ppc_elf_link_hash_entry
3105 struct elf_link_hash_entry elf;
3107 /* If this symbol is used in the linker created sections, the processor
3108 specific backend uses this field to map the field into the offset
3109 from the beginning of the section. */
3110 elf_linker_section_pointers_t *linker_section_pointer;
3112 /* Track dynamic relocs copied for this symbol. */
3113 struct elf_dyn_relocs *dyn_relocs;
3115 /* Contexts in which symbol is used in the GOT (or TOC).
3116 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3117 corresponding relocs are encountered during check_relocs.
3118 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3119 indicate the corresponding GOT entry type is not needed. */
3120 #define TLS_GD 1 /* GD reloc. */
3121 #define TLS_LD 2 /* LD reloc. */
3122 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
3123 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3124 #define TLS_TLS 16 /* Any TLS reloc. */
3125 #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
3126 #define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
3129 /* Nonzero if we have seen a small data relocation referring to this
3131 unsigned char has_sda_refs;
3134 #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3136 /* PPC ELF linker hash table. */
3138 struct ppc_elf_link_hash_table
3140 struct elf_link_hash_table elf;
3142 /* Short-cuts to get to dynamic linker sections. */
3154 elf_linker_section_t sdata[2];
3156 asection *glink_eh_frame;
3158 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3161 /* The .got.plt section (VxWorks only)*/
3164 /* Shortcut to __tls_get_addr. */
3165 struct elf_link_hash_entry *tls_get_addr;
3167 /* The bfd that forced an old-style PLT. */
3170 /* TLS local dynamic got entry handling. */
3172 bfd_signed_vma refcount;
3176 /* Offset of branch table to PltResolve function in glink. */
3177 bfd_vma glink_pltresolve;
3179 /* Size of reserved GOT entries. */
3180 unsigned int got_header_size;
3181 /* Non-zero if allocating the header left a gap. */
3182 unsigned int got_gap;
3184 /* The type of PLT we have chosen to use. */
3185 enum ppc_elf_plt_type plt_type;
3187 /* Set if we should emit symbols for stubs. */
3188 unsigned int emit_stub_syms:1;
3190 /* Set if __tls_get_addr optimization should not be done. */
3191 unsigned int no_tls_get_addr_opt:1;
3193 /* True if the target system is VxWorks. */
3194 unsigned int is_vxworks:1;
3196 /* The size of PLT entries. */
3198 /* The distance between adjacent PLT slots. */
3200 /* The size of the first PLT entry. */
3201 int plt_initial_entry_size;
3203 /* Small local sym cache. */
3204 struct sym_cache sym_cache;
3207 /* Rename some of the generic section flags to better document how they
3208 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3210 /* Nonzero if this section has TLS related relocations. */
3211 #define has_tls_reloc sec_flg0
3213 /* Nonzero if this section has a call to __tls_get_addr. */
3214 #define has_tls_get_addr_call sec_flg1
3216 /* Get the PPC ELF linker hash table from a link_info structure. */
3218 #define ppc_elf_hash_table(p) \
3219 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3220 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
3222 /* Create an entry in a PPC ELF linker hash table. */
3224 static struct bfd_hash_entry *
3225 ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3226 struct bfd_hash_table *table,
3229 /* Allocate the structure if it has not already been allocated by a
3233 entry = bfd_hash_allocate (table,
3234 sizeof (struct ppc_elf_link_hash_entry));
3239 /* Call the allocation method of the superclass. */
3240 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3243 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3244 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3245 ppc_elf_hash_entry (entry)->tls_mask = 0;
3246 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
3252 /* Create a PPC ELF linker hash table. */
3254 static struct bfd_link_hash_table *
3255 ppc_elf_link_hash_table_create (bfd *abfd)
3257 struct ppc_elf_link_hash_table *ret;
3259 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3263 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3264 ppc_elf_link_hash_newfunc,
3265 sizeof (struct ppc_elf_link_hash_entry),
3272 ret->elf.init_plt_refcount.refcount = 0;
3273 ret->elf.init_plt_refcount.glist = NULL;
3274 ret->elf.init_plt_offset.offset = 0;
3275 ret->elf.init_plt_offset.glist = NULL;
3277 ret->sdata[0].name = ".sdata";
3278 ret->sdata[0].sym_name = "_SDA_BASE_";
3279 ret->sdata[0].bss_name = ".sbss";
3281 ret->sdata[1].name = ".sdata2";
3282 ret->sdata[1].sym_name = "_SDA2_BASE_";
3283 ret->sdata[1].bss_name = ".sbss2";
3285 ret->plt_entry_size = 12;
3286 ret->plt_slot_size = 8;
3287 ret->plt_initial_entry_size = 72;
3289 return &ret->elf.root;
3292 /* Create .got and the related sections. */
3295 ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3297 struct ppc_elf_link_hash_table *htab;
3301 if (!_bfd_elf_create_got_section (abfd, info))
3304 htab = ppc_elf_hash_table (info);
3305 htab->got = s = bfd_get_linker_section (abfd, ".got");
3309 if (htab->is_vxworks)
3311 htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt");
3317 /* The powerpc .got has a blrl instruction in it. Mark it
3319 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3320 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3321 if (!bfd_set_section_flags (abfd, s, flags))
3325 htab->relgot = bfd_get_linker_section (abfd, ".rela.got");
3333 ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3335 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3339 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3340 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3341 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3344 || !bfd_set_section_alignment (abfd, s, 4))
3347 if (!info->no_ld_generated_unwind_info)
3349 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3350 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3351 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3352 htab->glink_eh_frame = s;
3354 || !bfd_set_section_alignment (abfd, s, 2))
3358 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3359 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
3362 || !bfd_set_section_alignment (abfd, s, 4))
3365 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3366 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3367 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
3370 || ! bfd_set_section_alignment (abfd, s, 2))
3375 /* We have to create .dynsbss and .rela.sbss here so that they get mapped
3376 to output sections (just like _bfd_elf_create_dynamic_sections has
3377 to create .dynbss and .rela.bss). */
3380 ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3382 struct ppc_elf_link_hash_table *htab;
3386 htab = ppc_elf_hash_table (info);
3388 if (htab->got == NULL
3389 && !ppc_elf_create_got (abfd, info))
3392 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3395 if (htab->glink == NULL
3396 && !ppc_elf_create_glink (abfd, info))
3399 htab->dynbss = bfd_get_linker_section (abfd, ".dynbss");
3400 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3401 SEC_ALLOC | SEC_LINKER_CREATED);
3408 htab->relbss = bfd_get_linker_section (abfd, ".rela.bss");
3409 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3410 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3411 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3414 || ! bfd_set_section_alignment (abfd, s, 2))
3418 if (htab->is_vxworks
3419 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3422 htab->relplt = bfd_get_linker_section (abfd, ".rela.plt");
3423 htab->plt = s = bfd_get_linker_section (abfd, ".plt");
3427 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
3428 if (htab->plt_type == PLT_VXWORKS)
3429 /* The VxWorks PLT is a loaded section with contents. */
3430 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
3431 return bfd_set_section_flags (abfd, s, flags);
3434 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3437 ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
3438 struct elf_link_hash_entry *dir,
3439 struct elf_link_hash_entry *ind)
3441 struct ppc_elf_link_hash_entry *edir, *eind;
3443 edir = (struct ppc_elf_link_hash_entry *) dir;
3444 eind = (struct ppc_elf_link_hash_entry *) ind;
3446 edir->tls_mask |= eind->tls_mask;
3447 edir->has_sda_refs |= eind->has_sda_refs;
3449 /* If called to transfer flags for a weakdef during processing
3450 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3451 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3452 if (!(ELIMINATE_COPY_RELOCS
3453 && eind->elf.root.type != bfd_link_hash_indirect
3454 && edir->elf.dynamic_adjusted))
3455 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3457 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
3458 edir->elf.ref_regular |= eind->elf.ref_regular;
3459 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3460 edir->elf.needs_plt |= eind->elf.needs_plt;
3461 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3463 if (eind->dyn_relocs != NULL)
3465 if (edir->dyn_relocs != NULL)
3467 struct elf_dyn_relocs **pp;
3468 struct elf_dyn_relocs *p;
3470 /* Add reloc counts against the indirect sym to the direct sym
3471 list. Merge any entries against the same section. */
3472 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3474 struct elf_dyn_relocs *q;
3476 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3477 if (q->sec == p->sec)
3479 q->pc_count += p->pc_count;
3480 q->count += p->count;
3487 *pp = edir->dyn_relocs;
3490 edir->dyn_relocs = eind->dyn_relocs;
3491 eind->dyn_relocs = NULL;
3494 /* If we were called to copy over info for a weak sym, that's all.
3495 You might think dyn_relocs need not be copied over; After all,
3496 both syms will be dynamic or both non-dynamic so we're just
3497 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
3498 code in ppc_elf_adjust_dynamic_symbol needs to check for
3499 dyn_relocs in read-only sections, and it does so on what is the
3501 if (eind->elf.root.type != bfd_link_hash_indirect)
3504 /* Copy over the GOT refcount entries that we may have already seen to
3505 the symbol which just became indirect. */
3506 edir->elf.got.refcount += eind->elf.got.refcount;
3507 eind->elf.got.refcount = 0;
3509 /* And plt entries. */
3510 if (eind->elf.plt.plist != NULL)
3512 if (edir->elf.plt.plist != NULL)
3514 struct plt_entry **entp;
3515 struct plt_entry *ent;
3517 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3519 struct plt_entry *dent;
3521 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3522 if (dent->sec == ent->sec && dent->addend == ent->addend)
3524 dent->plt.refcount += ent->plt.refcount;
3531 *entp = edir->elf.plt.plist;
3534 edir->elf.plt.plist = eind->elf.plt.plist;
3535 eind->elf.plt.plist = NULL;
3538 if (eind->elf.dynindx != -1)
3540 if (edir->elf.dynindx != -1)
3541 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3542 edir->elf.dynstr_index);
3543 edir->elf.dynindx = eind->elf.dynindx;
3544 edir->elf.dynstr_index = eind->elf.dynstr_index;
3545 eind->elf.dynindx = -1;
3546 eind->elf.dynstr_index = 0;
3550 /* Hook called by the linker routine which adds symbols from an object
3551 file. We use it to put .comm items in .sbss, and not .bss. */
3554 ppc_elf_add_symbol_hook (bfd *abfd,
3555 struct bfd_link_info *info,
3556 Elf_Internal_Sym *sym,
3557 const char **namep ATTRIBUTE_UNUSED,
3558 flagword *flagsp ATTRIBUTE_UNUSED,
3562 if (sym->st_shndx == SHN_COMMON
3563 && !info->relocatable
3564 && is_ppc_elf (info->output_bfd)
3565 && sym->st_size <= elf_gp_size (abfd))
3567 /* Common symbols less than or equal to -G nn bytes are automatically
3569 struct ppc_elf_link_hash_table *htab;
3571 htab = ppc_elf_hash_table (info);
3572 if (htab->sbss == NULL)
3574 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3576 if (!htab->elf.dynobj)
3577 htab->elf.dynobj = abfd;
3579 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3582 if (htab->sbss == NULL)
3587 *valp = sym->st_size;
3590 if ((abfd->flags & DYNAMIC) == 0
3591 && (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
3592 || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE))
3593 elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
3599 create_sdata_sym (struct bfd_link_info *info, elf_linker_section_t *lsect)
3601 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3603 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
3605 if (lsect->sym == NULL)
3607 if (lsect->sym->root.type == bfd_link_hash_new)
3608 lsect->sym->non_elf = 0;
3609 lsect->sym->ref_regular = 1;
3610 _bfd_elf_link_hash_hide_symbol (info, lsect->sym, TRUE);
3614 /* Create a special linker section. */
3617 ppc_elf_create_linker_section (bfd *abfd,
3618 struct bfd_link_info *info,
3620 elf_linker_section_t *lsect)
3622 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3625 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3626 | SEC_LINKER_CREATED);
3628 /* Record the first bfd that needs the special sections. */
3629 if (!htab->elf.dynobj)
3630 htab->elf.dynobj = abfd;
3632 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3636 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
3640 return create_sdata_sym (info, lsect);
3643 /* Find a linker generated pointer with a given addend and type. */
3645 static elf_linker_section_pointers_t *
3646 elf_find_pointer_linker_section
3647 (elf_linker_section_pointers_t *linker_pointers,
3649 elf_linker_section_t *lsect)
3651 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3652 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3653 return linker_pointers;
3658 /* Allocate a pointer to live in a linker created section. */
3661 elf_create_pointer_linker_section (bfd *abfd,
3662 elf_linker_section_t *lsect,
3663 struct elf_link_hash_entry *h,
3664 const Elf_Internal_Rela *rel)
3666 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3667 elf_linker_section_pointers_t *linker_section_ptr;
3668 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3671 BFD_ASSERT (lsect != NULL);
3673 /* Is this a global symbol? */
3676 struct ppc_elf_link_hash_entry *eh;
3678 /* Has this symbol already been allocated? If so, our work is done. */
3679 eh = (struct ppc_elf_link_hash_entry *) h;
3680 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3685 ptr_linker_section_ptr = &eh->linker_section_pointer;
3689 BFD_ASSERT (is_ppc_elf (abfd));
3691 /* Allocation of a pointer to a local symbol. */
3692 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3694 /* Allocate a table to hold the local symbols if first time. */
3697 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
3700 amt *= sizeof (elf_linker_section_pointers_t *);
3701 ptr = bfd_zalloc (abfd, amt);
3706 elf_local_ptr_offsets (abfd) = ptr;
3709 /* Has this symbol already been allocated? If so, our work is done. */
3710 if (elf_find_pointer_linker_section (ptr[r_symndx],
3715 ptr_linker_section_ptr = &ptr[r_symndx];
3718 /* Allocate space for a pointer in the linker section, and allocate
3719 a new pointer record from internal memory. */
3720 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3721 amt = sizeof (elf_linker_section_pointers_t);
3722 linker_section_ptr = bfd_alloc (abfd, amt);
3724 if (!linker_section_ptr)
3727 linker_section_ptr->next = *ptr_linker_section_ptr;
3728 linker_section_ptr->addend = rel->r_addend;
3729 linker_section_ptr->lsect = lsect;
3730 *ptr_linker_section_ptr = linker_section_ptr;
3732 linker_section_ptr->offset = lsect->section->size;
3733 lsect->section->size += 4;
3737 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3738 lsect->name, (long) linker_section_ptr->offset,
3739 (long) lsect->section->size);
3745 static struct plt_entry **
3746 update_local_sym_info (bfd *abfd,
3747 Elf_Internal_Shdr *symtab_hdr,
3748 unsigned long r_symndx,
3751 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
3752 struct plt_entry **local_plt;
3753 char *local_got_tls_masks;
3755 if (local_got_refcounts == NULL)
3757 bfd_size_type size = symtab_hdr->sh_info;
3759 size *= (sizeof (*local_got_refcounts)
3760 + sizeof (*local_plt)
3761 + sizeof (*local_got_tls_masks));
3762 local_got_refcounts = bfd_zalloc (abfd, size);
3763 if (local_got_refcounts == NULL)
3765 elf_local_got_refcounts (abfd) = local_got_refcounts;
3768 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3769 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
3770 local_got_tls_masks[r_symndx] |= tls_type;
3771 if (tls_type != PLT_IFUNC)
3772 local_got_refcounts[r_symndx] += 1;
3773 return local_plt + r_symndx;
3777 update_plt_info (bfd *abfd, struct plt_entry **plist,
3778 asection *sec, bfd_vma addend)
3780 struct plt_entry *ent;
3784 for (ent = *plist; ent != NULL; ent = ent->next)
3785 if (ent->sec == sec && ent->addend == addend)
3789 bfd_size_type amt = sizeof (*ent);
3790 ent = bfd_alloc (abfd, amt);
3795 ent->addend = addend;
3796 ent->plt.refcount = 0;
3799 ent->plt.refcount += 1;
3803 static struct plt_entry *
3804 find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
3806 struct plt_entry *ent;
3810 for (ent = *plist; ent != NULL; ent = ent->next)
3811 if (ent->sec == sec && ent->addend == addend)
3817 is_branch_reloc (enum elf_ppc_reloc_type r_type)
3819 return (r_type == R_PPC_PLTREL24
3820 || r_type == R_PPC_LOCAL24PC
3821 || r_type == R_PPC_REL24
3822 || r_type == R_PPC_REL14
3823 || r_type == R_PPC_REL14_BRTAKEN
3824 || r_type == R_PPC_REL14_BRNTAKEN
3825 || r_type == R_PPC_ADDR24
3826 || r_type == R_PPC_ADDR14
3827 || r_type == R_PPC_ADDR14_BRTAKEN
3828 || r_type == R_PPC_ADDR14_BRNTAKEN);
3832 bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3834 (*_bfd_error_handler)
3835 (_("%B: relocation %s cannot be used when making a shared object"),
3837 ppc_elf_howto_table[r_type]->name);
3838 bfd_set_error (bfd_error_bad_value);
3841 /* Look through the relocs for a section during the first phase, and
3842 allocate space in the global offset table or procedure linkage
3846 ppc_elf_check_relocs (bfd *abfd,
3847 struct bfd_link_info *info,
3849 const Elf_Internal_Rela *relocs)
3851 struct ppc_elf_link_hash_table *htab;
3852 Elf_Internal_Shdr *symtab_hdr;
3853 struct elf_link_hash_entry **sym_hashes;
3854 const Elf_Internal_Rela *rel;
3855 const Elf_Internal_Rela *rel_end;
3856 asection *got2, *sreloc;
3857 struct elf_link_hash_entry *tga;
3859 if (info->relocatable)
3862 /* Don't do anything special with non-loaded, non-alloced sections.
3863 In particular, any relocs in such sections should not affect GOT
3864 and PLT reference counting (ie. we don't allow them to create GOT
3865 or PLT entries), there's no possibility or desire to optimize TLS
3866 relocs, and there's not much point in propagating relocs to shared
3867 libs that the dynamic linker won't relocate. */
3868 if ((sec->flags & SEC_ALLOC) == 0)
3872 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3876 BFD_ASSERT (is_ppc_elf (abfd));
3878 /* Initialize howto table if not already done. */
3879 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3880 ppc_elf_howto_init ();
3882 htab = ppc_elf_hash_table (info);
3883 if (htab->glink == NULL)
3885 if (htab->elf.dynobj == NULL)
3886 htab->elf.dynobj = abfd;
3887 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
3890 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
3891 FALSE, FALSE, TRUE);
3892 symtab_hdr = &elf_symtab_hdr (abfd);
3893 sym_hashes = elf_sym_hashes (abfd);
3894 got2 = bfd_get_section_by_name (abfd, ".got2");
3897 rel_end = relocs + sec->reloc_count;
3898 for (rel = relocs; rel < rel_end; rel++)
3900 unsigned long r_symndx;
3901 enum elf_ppc_reloc_type r_type;
3902 struct elf_link_hash_entry *h;
3905 r_symndx = ELF32_R_SYM (rel->r_info);
3906 if (r_symndx < symtab_hdr->sh_info)
3910 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3911 while (h->root.type == bfd_link_hash_indirect
3912 || h->root.type == bfd_link_hash_warning)
3913 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3915 /* PR15323, ref flags aren't set for references in the same
3917 h->root.non_ir_ref = 1;
3920 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3921 This shows up in particular in an R_PPC_ADDR32 in the eabi
3924 && htab->got == NULL
3925 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3927 if (htab->elf.dynobj == NULL)
3928 htab->elf.dynobj = abfd;
3929 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3931 BFD_ASSERT (h == htab->elf.hgot);
3935 r_type = ELF32_R_TYPE (rel->r_info);
3936 if (h == NULL && !htab->is_vxworks)
3938 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3943 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
3945 struct plt_entry **ifunc;
3947 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
3948 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
3953 /* STT_GNU_IFUNC symbols must have a PLT entry;
3954 In a non-pie executable even when there are
3957 || is_branch_reloc (r_type))
3960 if (r_type == R_PPC_PLTREL24)
3962 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3964 addend = rel->r_addend;
3966 if (!update_plt_info (abfd, ifunc, got2, addend))
3972 if (!htab->is_vxworks
3973 && is_branch_reloc (r_type)
3978 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
3979 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
3980 /* We have a new-style __tls_get_addr call with a marker
3984 /* Mark this section as having an old-style call. */
3985 sec->has_tls_get_addr_call = 1;
3992 /* These special tls relocs tie a call to __tls_get_addr with
3993 its parameter symbol. */
3996 case R_PPC_GOT_TLSLD16:
3997 case R_PPC_GOT_TLSLD16_LO:
3998 case R_PPC_GOT_TLSLD16_HI:
3999 case R_PPC_GOT_TLSLD16_HA:
4000 tls_type = TLS_TLS | TLS_LD;
4003 case R_PPC_GOT_TLSGD16:
4004 case R_PPC_GOT_TLSGD16_LO:
4005 case R_PPC_GOT_TLSGD16_HI:
4006 case R_PPC_GOT_TLSGD16_HA:
4007 tls_type = TLS_TLS | TLS_GD;
4010 case R_PPC_GOT_TPREL16:
4011 case R_PPC_GOT_TPREL16_LO:
4012 case R_PPC_GOT_TPREL16_HI:
4013 case R_PPC_GOT_TPREL16_HA:
4014 if (!info->executable)
4015 info->flags |= DF_STATIC_TLS;
4016 tls_type = TLS_TLS | TLS_TPREL;
4019 case R_PPC_GOT_DTPREL16:
4020 case R_PPC_GOT_DTPREL16_LO:
4021 case R_PPC_GOT_DTPREL16_HI:
4022 case R_PPC_GOT_DTPREL16_HA:
4023 tls_type = TLS_TLS | TLS_DTPREL;
4025 sec->has_tls_reloc = 1;
4028 /* GOT16 relocations */
4030 case R_PPC_GOT16_LO:
4031 case R_PPC_GOT16_HI:
4032 case R_PPC_GOT16_HA:
4033 /* This symbol requires a global offset table entry. */
4034 if (htab->got == NULL)
4036 if (htab->elf.dynobj == NULL)
4037 htab->elf.dynobj = abfd;
4038 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4043 h->got.refcount += 1;
4044 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4047 /* This is a global offset table entry for a local symbol. */
4048 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4051 /* We may also need a plt entry if the symbol turns out to be
4053 if (h != NULL && !info->shared)
4055 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4060 /* Indirect .sdata relocation. */
4061 case R_PPC_EMB_SDAI16:
4064 bad_shared_reloc (abfd, r_type);
4067 if (htab->sdata[0].section == NULL
4068 && !ppc_elf_create_linker_section (abfd, info, 0,
4071 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
4076 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4077 h->non_got_ref = TRUE;
4081 /* Indirect .sdata2 relocation. */
4082 case R_PPC_EMB_SDA2I16:
4085 bad_shared_reloc (abfd, r_type);
4088 if (htab->sdata[1].section == NULL
4089 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
4092 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
4097 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4098 h->non_got_ref = TRUE;
4102 case R_PPC_VLE_SDAREL_LO16A:
4103 case R_PPC_VLE_SDAREL_LO16D:
4104 case R_PPC_VLE_SDAREL_HI16A:
4105 case R_PPC_VLE_SDAREL_HI16D:
4106 case R_PPC_VLE_SDAREL_HA16A:
4107 case R_PPC_VLE_SDAREL_HA16D:
4108 case R_PPC_SDAREL16:
4109 if (htab->sdata[0].sym == NULL
4110 && !create_sdata_sym (info, &htab->sdata[0]))
4113 if (htab->sdata[1].sym == NULL
4114 && !create_sdata_sym (info, &htab->sdata[1]))
4119 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4120 h->non_got_ref = TRUE;
4124 case R_PPC_VLE_REL8:
4125 case R_PPC_VLE_REL15:
4126 case R_PPC_VLE_REL24:
4127 case R_PPC_VLE_LO16A:
4128 case R_PPC_VLE_LO16D:
4129 case R_PPC_VLE_HI16A:
4130 case R_PPC_VLE_HI16D:
4131 case R_PPC_VLE_HA16A:
4132 case R_PPC_VLE_HA16D:
4135 case R_PPC_EMB_SDA2REL:
4138 bad_shared_reloc (abfd, r_type);
4141 if (htab->sdata[1].sym == NULL
4142 && !create_sdata_sym (info, &htab->sdata[1]))
4146 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4147 h->non_got_ref = TRUE;
4151 case R_PPC_VLE_SDA21_LO:
4152 case R_PPC_VLE_SDA21:
4153 case R_PPC_EMB_SDA21:
4154 case R_PPC_EMB_RELSDA:
4157 bad_shared_reloc (abfd, r_type);
4160 if (htab->sdata[0].sym == NULL
4161 && !create_sdata_sym (info, &htab->sdata[0]))
4163 if (htab->sdata[1].sym == NULL
4164 && !create_sdata_sym (info, &htab->sdata[1]))
4168 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4169 h->non_got_ref = TRUE;
4173 case R_PPC_EMB_NADDR32:
4174 case R_PPC_EMB_NADDR16:
4175 case R_PPC_EMB_NADDR16_LO:
4176 case R_PPC_EMB_NADDR16_HI:
4177 case R_PPC_EMB_NADDR16_HA:
4180 bad_shared_reloc (abfd, r_type);
4184 h->non_got_ref = TRUE;
4187 case R_PPC_PLTREL24:
4192 case R_PPC_PLTREL32:
4193 case R_PPC_PLT16_LO:
4194 case R_PPC_PLT16_HI:
4195 case R_PPC_PLT16_HA:
4197 fprintf (stderr, "Reloc requires a PLT entry\n");
4199 /* This symbol requires a procedure linkage table entry. We
4200 actually build the entry in finish_dynamic_symbol,
4201 because this might be a case of linking PIC code without
4202 linking in any dynamic objects, in which case we don't
4203 need to generate a procedure linkage table after all. */
4207 /* It does not make sense to have a procedure linkage
4208 table entry for a local symbol. */
4209 info->callbacks->einfo (_("%P: %H: %s reloc against local symbol\n"),
4210 abfd, sec, rel->r_offset,
4211 ppc_elf_howto_table[r_type]->name);
4212 bfd_set_error (bfd_error_bad_value);
4219 if (r_type == R_PPC_PLTREL24)
4221 ppc_elf_tdata (abfd)->makes_plt_call = 1;
4223 addend = rel->r_addend;
4226 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
4231 /* The following relocations don't need to propagate the
4232 relocation if linking a shared object since they are
4233 section relative. */
4235 case R_PPC_SECTOFF_LO:
4236 case R_PPC_SECTOFF_HI:
4237 case R_PPC_SECTOFF_HA:
4238 case R_PPC_DTPREL16:
4239 case R_PPC_DTPREL16_LO:
4240 case R_PPC_DTPREL16_HI:
4241 case R_PPC_DTPREL16_HA:
4246 case R_PPC_REL16_LO:
4247 case R_PPC_REL16_HI:
4248 case R_PPC_REL16_HA:
4249 ppc_elf_tdata (abfd)->has_rel16 = 1;
4252 /* These are just markers. */
4254 case R_PPC_EMB_MRKREF:
4258 case R_PPC_RELAX_PLT:
4259 case R_PPC_RELAX_PLTREL24:
4262 /* These should only appear in dynamic objects. */
4264 case R_PPC_GLOB_DAT:
4265 case R_PPC_JMP_SLOT:
4266 case R_PPC_RELATIVE:
4267 case R_PPC_IRELATIVE:
4270 /* These aren't handled yet. We'll report an error later. */
4272 case R_PPC_EMB_RELSEC16:
4273 case R_PPC_EMB_RELST_LO:
4274 case R_PPC_EMB_RELST_HI:
4275 case R_PPC_EMB_RELST_HA:
4276 case R_PPC_EMB_BIT_FLD:
4279 /* This refers only to functions defined in the shared library. */
4280 case R_PPC_LOCAL24PC:
4281 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
4283 htab->plt_type = PLT_OLD;
4284 htab->old_bfd = abfd;
4286 if (h != NULL && h->type == STT_GNU_IFUNC)
4290 info->callbacks->einfo (_("%P: %H: @local call to ifunc %s\n"),
4291 abfd, sec, rel->r_offset,
4292 h->root.root.string);
4293 bfd_set_error (bfd_error_bad_value);
4297 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4302 /* This relocation describes the C++ object vtable hierarchy.
4303 Reconstruct it for later use during GC. */
4304 case R_PPC_GNU_VTINHERIT:
4305 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4309 /* This relocation describes which C++ vtable entries are actually
4310 used. Record for later use during GC. */
4311 case R_PPC_GNU_VTENTRY:
4312 BFD_ASSERT (h != NULL);
4314 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4318 /* We shouldn't really be seeing these. */
4321 case R_PPC_TPREL16_LO:
4322 case R_PPC_TPREL16_HI:
4323 case R_PPC_TPREL16_HA:
4324 if (!info->executable)
4325 info->flags |= DF_STATIC_TLS;
4329 case R_PPC_DTPMOD32:
4330 case R_PPC_DTPREL32:
4336 && (sec->flags & SEC_CODE) != 0
4338 && htab->plt_type == PLT_UNSET)
4340 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4341 the start of a function, which assembles to a REL32
4342 reference to .got2. If we detect one of these, then
4343 force the old PLT layout because the linker cannot
4344 reliably deduce the GOT pointer value needed for
4347 Elf_Internal_Sym *isym;
4349 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4354 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4357 htab->plt_type = PLT_OLD;
4358 htab->old_bfd = abfd;
4361 if (h == NULL || h == htab->elf.hgot)
4367 case R_PPC_ADDR16_LO:
4368 case R_PPC_ADDR16_HI:
4369 case R_PPC_ADDR16_HA:
4372 if (h != NULL && !info->shared)
4374 /* We may need a plt entry if the symbol turns out to be
4375 a function defined in a dynamic object. */
4376 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4379 /* We may need a copy reloc too. */
4381 h->pointer_equality_needed = 1;
4387 case R_PPC_REL14_BRTAKEN:
4388 case R_PPC_REL14_BRNTAKEN:
4391 if (h == htab->elf.hgot)
4393 if (htab->plt_type == PLT_UNSET)
4395 htab->plt_type = PLT_OLD;
4396 htab->old_bfd = abfd;
4404 case R_PPC_ADDR14_BRTAKEN:
4405 case R_PPC_ADDR14_BRNTAKEN:
4406 if (h != NULL && !info->shared)
4408 /* We may need a plt entry if the symbol turns out to be
4409 a function defined in a dynamic object. */
4411 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4417 /* If we are creating a shared library, and this is a reloc
4418 against a global symbol, or a non PC relative reloc
4419 against a local symbol, then we need to copy the reloc
4420 into the shared library. However, if we are linking with
4421 -Bsymbolic, we do not need to copy a reloc against a
4422 global symbol which is defined in an object we are
4423 including in the link (i.e., DEF_REGULAR is set). At
4424 this point we have not seen all the input files, so it is
4425 possible that DEF_REGULAR is not set now but will be set
4426 later (it is never cleared). In case of a weak definition,
4427 DEF_REGULAR may be cleared later by a strong definition in
4428 a shared library. We account for that possibility below by
4429 storing information in the dyn_relocs field of the hash
4430 table entry. A similar situation occurs when creating
4431 shared libraries and symbol visibility changes render the
4434 If on the other hand, we are creating an executable, we
4435 may need to keep relocations for symbols satisfied by a
4436 dynamic library if we manage to avoid copy relocs for the
4439 && (must_be_dyn_reloc (info, r_type)
4441 && (!SYMBOLIC_BIND (info, h)
4442 || h->root.type == bfd_link_hash_defweak
4443 || !h->def_regular))))
4444 || (ELIMINATE_COPY_RELOCS
4447 && (h->root.type == bfd_link_hash_defweak
4448 || !h->def_regular)))
4452 "ppc_elf_check_relocs needs to "
4453 "create relocation for %s\n",
4454 (h && h->root.root.string
4455 ? h->root.root.string : "<unknown>"));
4459 if (htab->elf.dynobj == NULL)
4460 htab->elf.dynobj = abfd;
4462 sreloc = _bfd_elf_make_dynamic_reloc_section
4463 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4469 /* If this is a global symbol, we count the number of
4470 relocations we need for this symbol. */
4473 struct elf_dyn_relocs *p;
4474 struct elf_dyn_relocs **rel_head;
4476 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
4478 if (p == NULL || p->sec != sec)
4480 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4483 p->next = *rel_head;
4490 if (!must_be_dyn_reloc (info, r_type))
4495 /* Track dynamic relocs needed for local syms too.
4496 We really need local syms available to do this
4498 struct ppc_dyn_relocs *p;
4499 struct ppc_dyn_relocs **rel_head;
4500 bfd_boolean is_ifunc;
4503 Elf_Internal_Sym *isym;
4505 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4510 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4514 vpp = &elf_section_data (s)->local_dynrel;
4515 rel_head = (struct ppc_dyn_relocs **) vpp;
4516 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
4518 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
4520 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
4522 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4525 p->next = *rel_head;
4528 p->ifunc = is_ifunc;
4543 /* Merge object attributes from IBFD into OBFD. Raise an error if
4544 there are conflicting attributes. */
4546 ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
4548 obj_attribute *in_attr, *in_attrs;
4549 obj_attribute *out_attr, *out_attrs;
4551 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4553 /* This is the first object. Copy the attributes. */
4554 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4556 /* Use the Tag_null value to indicate the attributes have been
4558 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4563 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4564 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4566 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
4567 non-conflicting ones. */
4568 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4569 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
4570 if (in_attr->i != out_attr->i)
4573 if (out_attr->i == 0)
4574 out_attr->i = in_attr->i;
4575 else if (in_attr->i == 0)
4577 else if (out_attr->i == 1 && in_attr->i == 2)
4579 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
4580 else if (out_attr->i == 1 && in_attr->i == 3)
4582 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4584 else if (out_attr->i == 3 && in_attr->i == 1)
4586 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4588 else if (out_attr->i == 3 && in_attr->i == 2)
4590 (_("Warning: %B uses soft float, %B uses single-precision hard float"),
4592 else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3))
4594 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
4595 else if (in_attr->i > 3)
4597 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
4601 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
4605 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4606 merge non-conflicting ones. */
4607 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4608 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4609 if (in_attr->i != out_attr->i)
4611 const char *in_abi = NULL, *out_abi = NULL;
4615 case 1: in_abi = "generic"; break;
4616 case 2: in_abi = "AltiVec"; break;
4617 case 3: in_abi = "SPE"; break;
4620 switch (out_attr->i)
4622 case 1: out_abi = "generic"; break;
4623 case 2: out_abi = "AltiVec"; break;
4624 case 3: out_abi = "SPE"; break;
4628 if (out_attr->i == 0)
4629 out_attr->i = in_attr->i;
4630 else if (in_attr->i == 0)
4632 /* For now, allow generic to transition to AltiVec or SPE
4633 without a warning. If GCC marked files with their stack
4634 alignment and used don't-care markings for files which are
4635 not affected by the vector ABI, we could warn about this
4637 else if (out_attr->i == 1)
4638 out_attr->i = in_attr->i;
4639 else if (in_attr->i == 1)
4641 else if (in_abi == NULL)
4643 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
4645 else if (out_abi == NULL)
4647 (_("Warning: %B uses unknown vector ABI %d"), obfd,
4651 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
4652 ibfd, obfd, in_abi, out_abi);
4655 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4656 and merge non-conflicting ones. */
4657 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4658 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4659 if (in_attr->i != out_attr->i)
4662 if (out_attr->i == 0)
4663 out_attr->i = in_attr->i;
4664 else if (in_attr->i == 0)
4666 else if (out_attr->i == 1 && in_attr->i == 2)
4668 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd);
4669 else if (out_attr->i == 2 && in_attr->i == 1)
4671 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd);
4672 else if (in_attr->i > 2)
4674 (_("Warning: %B uses unknown small structure return convention %d"), ibfd,
4678 (_("Warning: %B uses unknown small structure return convention %d"), obfd,
4682 /* Merge Tag_compatibility attributes and any common GNU ones. */
4683 _bfd_elf_merge_object_attributes (ibfd, obfd);
4688 /* Merge backend specific data from an object file to the output
4689 object file when linking. */
4692 ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4698 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
4701 /* Check if we have the same endianness. */
4702 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
4705 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
4708 new_flags = elf_elfheader (ibfd)->e_flags;
4709 old_flags = elf_elfheader (obfd)->e_flags;
4710 if (!elf_flags_init (obfd))
4712 /* First call, no flags set. */
4713 elf_flags_init (obfd) = TRUE;
4714 elf_elfheader (obfd)->e_flags = new_flags;
4717 /* Compatible flags are ok. */
4718 else if (new_flags == old_flags)
4721 /* Incompatible flags. */
4724 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4725 to be linked with either. */
4727 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4728 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4731 (*_bfd_error_handler)
4732 (_("%B: compiled with -mrelocatable and linked with "
4733 "modules compiled normally"), ibfd);
4735 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4736 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4739 (*_bfd_error_handler)
4740 (_("%B: compiled normally and linked with "
4741 "modules compiled with -mrelocatable"), ibfd);
4744 /* The output is -mrelocatable-lib iff both the input files are. */
4745 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4746 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4748 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4749 but each input file is either -mrelocatable or -mrelocatable-lib. */
4750 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4751 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4752 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4753 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4755 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4756 any module uses it. */
4757 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4759 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4760 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4762 /* Warn about any other mismatches. */
4763 if (new_flags != old_flags)
4766 (*_bfd_error_handler)
4767 (_("%B: uses different e_flags (0x%lx) fields "
4768 "than previous modules (0x%lx)"),
4769 ibfd, (long) new_flags, (long) old_flags);
4774 bfd_set_error (bfd_error_bad_value);
4783 ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *contents,
4784 bfd_vma offset, bfd_vma relocation,
4785 split16_format_type split16_format)
4788 bfd_vma insn, top5, bottom11;
4790 insn = bfd_get_32 (output_bfd, contents + offset);
4791 top5 = relocation >> 11;
4792 top5 = top5 << (split16_format == split16a_type ? 20 : 16);
4793 bottom11 = relocation & 0x7ff;
4796 bfd_put_32 (output_bfd, insn, contents + offset);
4800 /* Choose which PLT scheme to use, and set .plt flags appropriately.
4801 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4803 ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
4804 struct bfd_link_info *info,
4805 enum ppc_elf_plt_type plt_style,
4808 struct ppc_elf_link_hash_table *htab;
4811 htab = ppc_elf_hash_table (info);
4813 htab->emit_stub_syms = emit_stub_syms;
4815 if (htab->plt_type == PLT_UNSET)
4817 struct elf_link_hash_entry *h;
4819 if (plt_style == PLT_OLD)
4820 htab->plt_type = PLT_OLD;
4821 else if (info->shared
4822 && htab->elf.dynamic_sections_created
4823 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
4824 FALSE, FALSE, TRUE)) != NULL
4825 && (h->type == STT_FUNC
4828 && !(SYMBOL_CALLS_LOCAL (info, h)
4829 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4830 && h->root.type == bfd_link_hash_undefweak)))
4832 /* Profiling of shared libs (and pies) is not supported with
4833 secure plt, because ppc32 does profiling before a
4834 function prologue and a secure plt pic call stubs needs
4835 r30 to be set up. */
4836 htab->plt_type = PLT_OLD;
4841 enum ppc_elf_plt_type plt_type = plt_style;
4843 /* Look through the reloc flags left by ppc_elf_check_relocs.
4844 Use the old style bss plt if a file makes plt calls
4845 without using the new relocs, and if ld isn't given
4846 --secure-plt and we never see REL16 relocs. */
4847 if (plt_type == PLT_UNSET)
4849 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
4850 if (is_ppc_elf (ibfd))
4852 if (ppc_elf_tdata (ibfd)->has_rel16)
4854 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
4857 htab->old_bfd = ibfd;
4861 htab->plt_type = plt_type;
4864 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
4866 if (htab->old_bfd != NULL)
4867 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
4870 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
4873 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
4875 if (htab->plt_type == PLT_NEW)
4877 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
4878 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4880 /* The new PLT is a loaded section. */
4881 if (htab->plt != NULL
4882 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
4885 /* The new GOT is not executable. */
4886 if (htab->got != NULL
4887 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
4892 /* Stop an unused .glink section from affecting .text alignment. */
4893 if (htab->glink != NULL
4894 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
4897 return htab->plt_type == PLT_NEW;
4900 /* Return the section that should be marked against GC for a given
4904 ppc_elf_gc_mark_hook (asection *sec,
4905 struct bfd_link_info *info,
4906 Elf_Internal_Rela *rel,
4907 struct elf_link_hash_entry *h,
4908 Elf_Internal_Sym *sym)
4911 switch (ELF32_R_TYPE (rel->r_info))
4913 case R_PPC_GNU_VTINHERIT:
4914 case R_PPC_GNU_VTENTRY:
4918 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4921 /* Update the got, plt and dynamic reloc reference counts for the
4922 section being removed. */
4925 ppc_elf_gc_sweep_hook (bfd *abfd,
4926 struct bfd_link_info *info,
4928 const Elf_Internal_Rela *relocs)
4930 struct ppc_elf_link_hash_table *htab;
4931 Elf_Internal_Shdr *symtab_hdr;
4932 struct elf_link_hash_entry **sym_hashes;
4933 bfd_signed_vma *local_got_refcounts;
4934 const Elf_Internal_Rela *rel, *relend;
4937 if (info->relocatable)
4940 if ((sec->flags & SEC_ALLOC) == 0)
4943 elf_section_data (sec)->local_dynrel = NULL;
4945 htab = ppc_elf_hash_table (info);
4946 symtab_hdr = &elf_symtab_hdr (abfd);
4947 sym_hashes = elf_sym_hashes (abfd);
4948 local_got_refcounts = elf_local_got_refcounts (abfd);
4949 got2 = bfd_get_section_by_name (abfd, ".got2");
4951 relend = relocs + sec->reloc_count;
4952 for (rel = relocs; rel < relend; rel++)
4954 unsigned long r_symndx;
4955 enum elf_ppc_reloc_type r_type;
4956 struct elf_link_hash_entry *h = NULL;
4958 r_symndx = ELF32_R_SYM (rel->r_info);
4959 if (r_symndx >= symtab_hdr->sh_info)
4961 struct elf_dyn_relocs **pp, *p;
4962 struct ppc_elf_link_hash_entry *eh;
4964 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4965 while (h->root.type == bfd_link_hash_indirect
4966 || h->root.type == bfd_link_hash_warning)
4967 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4968 eh = (struct ppc_elf_link_hash_entry *) h;
4970 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4973 /* Everything must go for SEC. */
4979 r_type = ELF32_R_TYPE (rel->r_info);
4980 if (!htab->is_vxworks
4982 && local_got_refcounts != NULL
4984 || is_branch_reloc (r_type)))
4986 struct plt_entry **local_plt = (struct plt_entry **)
4987 (local_got_refcounts + symtab_hdr->sh_info);
4988 char *local_got_tls_masks = (char *)
4989 (local_plt + symtab_hdr->sh_info);
4990 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
4992 struct plt_entry **ifunc = local_plt + r_symndx;
4994 struct plt_entry *ent;
4996 if (r_type == R_PPC_PLTREL24 && info->shared)
4997 addend = rel->r_addend;
4998 ent = find_plt_ent (ifunc, got2, addend);
4999 if (ent->plt.refcount > 0)
5000 ent->plt.refcount -= 1;
5007 case R_PPC_GOT_TLSLD16:
5008 case R_PPC_GOT_TLSLD16_LO:
5009 case R_PPC_GOT_TLSLD16_HI:
5010 case R_PPC_GOT_TLSLD16_HA:
5011 case R_PPC_GOT_TLSGD16:
5012 case R_PPC_GOT_TLSGD16_LO:
5013 case R_PPC_GOT_TLSGD16_HI:
5014 case R_PPC_GOT_TLSGD16_HA:
5015 case R_PPC_GOT_TPREL16:
5016 case R_PPC_GOT_TPREL16_LO:
5017 case R_PPC_GOT_TPREL16_HI:
5018 case R_PPC_GOT_TPREL16_HA:
5019 case R_PPC_GOT_DTPREL16:
5020 case R_PPC_GOT_DTPREL16_LO:
5021 case R_PPC_GOT_DTPREL16_HI:
5022 case R_PPC_GOT_DTPREL16_HA:
5024 case R_PPC_GOT16_LO:
5025 case R_PPC_GOT16_HI:
5026 case R_PPC_GOT16_HA:
5029 if (h->got.refcount > 0)
5033 struct plt_entry *ent;
5035 ent = find_plt_ent (&h->plt.plist, NULL, 0);
5036 if (ent != NULL && ent->plt.refcount > 0)
5037 ent->plt.refcount -= 1;
5040 else if (local_got_refcounts != NULL)
5042 if (local_got_refcounts[r_symndx] > 0)
5043 local_got_refcounts[r_symndx]--;
5049 case R_PPC_REL14_BRTAKEN:
5050 case R_PPC_REL14_BRNTAKEN:
5052 if (h == NULL || h == htab->elf.hgot)
5059 case R_PPC_ADDR16_LO:
5060 case R_PPC_ADDR16_HI:
5061 case R_PPC_ADDR16_HA:
5063 case R_PPC_ADDR14_BRTAKEN:
5064 case R_PPC_ADDR14_BRNTAKEN:
5071 case R_PPC_PLTREL24:
5072 case R_PPC_PLTREL32:
5073 case R_PPC_PLT16_LO:
5074 case R_PPC_PLT16_HI:
5075 case R_PPC_PLT16_HA:
5079 struct plt_entry *ent;
5081 if (r_type == R_PPC_PLTREL24 && info->shared)
5082 addend = rel->r_addend;
5083 ent = find_plt_ent (&h->plt.plist, got2, addend);
5084 if (ent != NULL && ent->plt.refcount > 0)
5085 ent->plt.refcount -= 1;
5096 /* Set plt output section type, htab->tls_get_addr, and call the
5097 generic ELF tls_setup function. */
5100 ppc_elf_tls_setup (bfd *obfd,
5101 struct bfd_link_info *info,
5102 int no_tls_get_addr_opt)
5104 struct ppc_elf_link_hash_table *htab;
5106 htab = ppc_elf_hash_table (info);
5107 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5108 FALSE, FALSE, TRUE);
5109 if (!no_tls_get_addr_opt)
5111 struct elf_link_hash_entry *opt, *tga;
5112 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5113 FALSE, FALSE, TRUE);
5115 && (opt->root.type == bfd_link_hash_defined
5116 || opt->root.type == bfd_link_hash_defweak))
5118 /* If glibc supports an optimized __tls_get_addr call stub,
5119 signalled by the presence of __tls_get_addr_opt, and we'll
5120 be calling __tls_get_addr via a plt call stub, then
5121 make __tls_get_addr point to __tls_get_addr_opt. */
5122 tga = htab->tls_get_addr;
5123 if (htab->elf.dynamic_sections_created
5125 && (tga->type == STT_FUNC
5127 && !(SYMBOL_CALLS_LOCAL (info, tga)
5128 || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
5129 && tga->root.type == bfd_link_hash_undefweak)))
5131 struct plt_entry *ent;
5132 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5133 if (ent->plt.refcount > 0)
5137 tga->root.type = bfd_link_hash_indirect;
5138 tga->root.u.i.link = &opt->root;
5139 ppc_elf_copy_indirect_symbol (info, opt, tga);
5140 if (opt->dynindx != -1)
5142 /* Use __tls_get_addr_opt in dynamic relocations. */
5144 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5146 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5149 htab->tls_get_addr = opt;
5154 no_tls_get_addr_opt = TRUE;
5156 htab->no_tls_get_addr_opt = no_tls_get_addr_opt;
5157 if (htab->plt_type == PLT_NEW
5158 && htab->plt != NULL
5159 && htab->plt->output_section != NULL)
5161 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
5162 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
5165 return _bfd_elf_tls_setup (obfd, info);
5168 /* Return TRUE iff REL is a branch reloc with a global symbol matching
5172 branch_reloc_hash_match (const bfd *ibfd,
5173 const Elf_Internal_Rela *rel,
5174 const struct elf_link_hash_entry *hash)
5176 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5177 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5178 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5180 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
5182 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5183 struct elf_link_hash_entry *h;
5185 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5186 while (h->root.type == bfd_link_hash_indirect
5187 || h->root.type == bfd_link_hash_warning)
5188 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5195 /* Run through all the TLS relocs looking for optimization
5199 ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5200 struct bfd_link_info *info)
5204 struct ppc_elf_link_hash_table *htab;
5207 if (info->relocatable || !info->executable)
5210 htab = ppc_elf_hash_table (info);
5214 /* Make two passes through the relocs. First time check that tls
5215 relocs involved in setting up a tls_get_addr call are indeed
5216 followed by such a call. If they are not, don't do any tls
5217 optimization. On the second pass twiddle tls_mask flags to
5218 notify relocate_section that optimization can be done, and
5219 adjust got and plt refcounts. */
5220 for (pass = 0; pass < 2; ++pass)
5221 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5223 Elf_Internal_Sym *locsyms = NULL;
5224 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5225 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
5227 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5228 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5230 Elf_Internal_Rela *relstart, *rel, *relend;
5231 int expecting_tls_get_addr = 0;
5233 /* Read the relocations. */
5234 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5236 if (relstart == NULL)
5239 relend = relstart + sec->reloc_count;
5240 for (rel = relstart; rel < relend; rel++)
5242 enum elf_ppc_reloc_type r_type;
5243 unsigned long r_symndx;
5244 struct elf_link_hash_entry *h = NULL;
5246 char tls_set, tls_clear;
5247 bfd_boolean is_local;
5248 bfd_signed_vma *got_count;
5250 r_symndx = ELF32_R_SYM (rel->r_info);
5251 if (r_symndx >= symtab_hdr->sh_info)
5253 struct elf_link_hash_entry **sym_hashes;
5255 sym_hashes = elf_sym_hashes (ibfd);
5256 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5257 while (h->root.type == bfd_link_hash_indirect
5258 || h->root.type == bfd_link_hash_warning)
5259 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5267 r_type = ELF32_R_TYPE (rel->r_info);
5268 /* If this section has old-style __tls_get_addr calls
5269 without marker relocs, then check that each
5270 __tls_get_addr call reloc is preceded by a reloc
5271 that conceivably belongs to the __tls_get_addr arg
5272 setup insn. If we don't find matching arg setup
5273 relocs, don't do any tls optimization. */
5275 && sec->has_tls_get_addr_call
5277 && h == htab->tls_get_addr
5278 && !expecting_tls_get_addr
5279 && is_branch_reloc (r_type))
5281 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
5282 "TLS optimization disabled\n",
5283 ibfd, sec, rel->r_offset);
5284 if (elf_section_data (sec)->relocs != relstart)
5289 expecting_tls_get_addr = 0;
5292 case R_PPC_GOT_TLSLD16:
5293 case R_PPC_GOT_TLSLD16_LO:
5294 expecting_tls_get_addr = 1;
5297 case R_PPC_GOT_TLSLD16_HI:
5298 case R_PPC_GOT_TLSLD16_HA:
5299 /* These relocs should never be against a symbol
5300 defined in a shared lib. Leave them alone if
5301 that turns out to be the case. */
5310 case R_PPC_GOT_TLSGD16:
5311 case R_PPC_GOT_TLSGD16_LO:
5312 expecting_tls_get_addr = 1;
5315 case R_PPC_GOT_TLSGD16_HI:
5316 case R_PPC_GOT_TLSGD16_HA:
5322 tls_set = TLS_TLS | TLS_TPRELGD;
5326 case R_PPC_GOT_TPREL16:
5327 case R_PPC_GOT_TPREL16_LO:
5328 case R_PPC_GOT_TPREL16_HI:
5329 case R_PPC_GOT_TPREL16_HA:
5334 tls_clear = TLS_TPREL;
5342 expecting_tls_get_addr = 2;
5353 if (!expecting_tls_get_addr
5354 || (expecting_tls_get_addr == 1
5355 && !sec->has_tls_get_addr_call))
5358 if (rel + 1 < relend
5359 && branch_reloc_hash_match (ibfd, rel + 1,
5360 htab->tls_get_addr))
5363 /* Uh oh, we didn't find the expected call. We
5364 could just mark this symbol to exclude it
5365 from tls optimization but it's safer to skip
5366 the entire optimization. */
5367 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
5368 "TLS optimization disabled\n"),
5369 ibfd, sec, rel->r_offset);
5370 if (elf_section_data (sec)->relocs != relstart)
5375 if (expecting_tls_get_addr)
5377 struct plt_entry *ent;
5381 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5382 addend = rel[1].r_addend;
5383 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5385 if (ent != NULL && ent->plt.refcount > 0)
5386 ent->plt.refcount -= 1;
5388 if (expecting_tls_get_addr == 2)
5394 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5395 got_count = &h->got.refcount;
5399 bfd_signed_vma *lgot_refs;
5400 struct plt_entry **local_plt;
5403 if (locsyms == NULL)
5405 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5406 if (locsyms == NULL)
5407 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5408 symtab_hdr->sh_info,
5409 0, NULL, NULL, NULL);
5410 if (locsyms == NULL)
5412 if (elf_section_data (sec)->relocs != relstart)
5417 lgot_refs = elf_local_got_refcounts (ibfd);
5418 if (lgot_refs == NULL)
5420 local_plt = (struct plt_entry **)
5421 (lgot_refs + symtab_hdr->sh_info);
5422 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
5423 tls_mask = &lgot_masks[r_symndx];
5424 got_count = &lgot_refs[r_symndx];
5429 /* We managed to get rid of a got entry. */
5434 *tls_mask |= tls_set;
5435 *tls_mask &= ~tls_clear;
5438 if (elf_section_data (sec)->relocs != relstart)
5443 && (symtab_hdr->contents != (unsigned char *) locsyms))
5445 if (!info->keep_memory)
5448 symtab_hdr->contents = (unsigned char *) locsyms;
5454 /* Return true if we have dynamic relocs that apply to read-only sections. */
5457 readonly_dynrelocs (struct elf_link_hash_entry *h)
5459 struct elf_dyn_relocs *p;
5461 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5463 asection *s = p->sec->output_section;
5466 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5467 == (SEC_READONLY | SEC_ALLOC)))
5473 /* Adjust a symbol defined by a dynamic object and referenced by a
5474 regular object. The current definition is in some section of the
5475 dynamic object, but we're not including those sections. We have to
5476 change the definition to something the rest of the link can
5480 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5481 struct elf_link_hash_entry *h)
5483 struct ppc_elf_link_hash_table *htab;
5487 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5488 h->root.root.string);
5491 /* Make sure we know what is going on here. */
5492 htab = ppc_elf_hash_table (info);
5493 BFD_ASSERT (htab->elf.dynobj != NULL
5495 || h->type == STT_GNU_IFUNC
5496 || h->u.weakdef != NULL
5499 && !h->def_regular)));
5501 /* Deal with function syms. */
5502 if (h->type == STT_FUNC
5503 || h->type == STT_GNU_IFUNC
5506 /* Clear procedure linkage table information for any symbol that
5507 won't need a .plt entry. */
5508 struct plt_entry *ent;
5509 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5510 if (ent->plt.refcount > 0)
5513 || (h->type != STT_GNU_IFUNC
5514 && (SYMBOL_CALLS_LOCAL (info, h)
5515 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5516 && h->root.type == bfd_link_hash_undefweak))))
5518 /* A PLT entry is not required/allowed when:
5520 1. We are not using ld.so; because then the PLT entry
5521 can't be set up, so we can't use one. In this case,
5522 ppc_elf_adjust_dynamic_symbol won't even be called.
5524 2. GC has rendered the entry unused.
5526 3. We know for certain that a call to this symbol
5527 will go to this object, or will remain undefined. */
5528 h->plt.plist = NULL;
5533 /* After adjust_dynamic_symbol, non_got_ref set in the
5534 non-shared case means that we have allocated space in
5535 .dynbss for the symbol and thus dyn_relocs for this
5536 symbol should be discarded.
5537 If we get here we know we are making a PLT entry for this
5538 symbol, and in an executable we'd normally resolve
5539 relocations against this symbol to the PLT entry. Allow
5540 dynamic relocs if the reference is weak, and the dynamic
5541 relocs will not cause text relocation. */
5542 if (!h->ref_regular_nonweak
5544 && h->type != STT_GNU_IFUNC
5545 && !htab->is_vxworks
5546 && !ppc_elf_hash_entry (h)->has_sda_refs
5547 && !readonly_dynrelocs (h))
5553 h->plt.plist = NULL;
5555 /* If this is a weak symbol, and there is a real definition, the
5556 processor independent code will have arranged for us to see the
5557 real definition first, and we can just use the same value. */
5558 if (h->u.weakdef != NULL)
5560 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5561 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5562 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5563 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5564 if (ELIMINATE_COPY_RELOCS)
5565 h->non_got_ref = h->u.weakdef->non_got_ref;
5569 /* This is a reference to a symbol defined by a dynamic object which
5570 is not a function. */
5572 /* If we are creating a shared library, we must presume that the
5573 only references to the symbol are via the global offset table.
5574 For such cases we need not do anything here; the relocations will
5575 be handled correctly by relocate_section. */
5579 /* If there are no references to this symbol that do not use the
5580 GOT, we don't need to generate a copy reloc. */
5581 if (!h->non_got_ref)
5584 /* If we didn't find any dynamic relocs in read-only sections, then
5585 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5586 We can't do this if there are any small data relocations. This
5587 doesn't work on VxWorks, where we can not have dynamic
5588 relocations (other than copy and jump slot relocations) in an
5590 if (ELIMINATE_COPY_RELOCS
5591 && !ppc_elf_hash_entry (h)->has_sda_refs
5592 && !htab->is_vxworks
5594 && !readonly_dynrelocs (h))
5600 /* We must allocate the symbol in our .dynbss section, which will
5601 become part of the .bss section of the executable. There will be
5602 an entry for this symbol in the .dynsym section. The dynamic
5603 object will contain position independent code, so all references
5604 from the dynamic object to this symbol will go through the global
5605 offset table. The dynamic linker will use the .dynsym entry to
5606 determine the address it must put in the global offset table, so
5607 both the dynamic object and the regular object will refer to the
5608 same memory location for the variable.
5610 Of course, if the symbol is referenced using SDAREL relocs, we
5611 must instead allocate it in .sbss. */
5613 if (ppc_elf_hash_entry (h)->has_sda_refs)
5617 BFD_ASSERT (s != NULL);
5619 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5620 copy the initial value out of the dynamic object and into the
5621 runtime process image. We need to remember the offset into the
5622 .rela.bss section we are going to use. */
5623 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
5627 if (ppc_elf_hash_entry (h)->has_sda_refs)
5628 srel = htab->relsbss;
5630 srel = htab->relbss;
5631 BFD_ASSERT (srel != NULL);
5632 srel->size += sizeof (Elf32_External_Rela);
5636 return _bfd_elf_adjust_dynamic_copy (h, s);
5639 /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5640 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5641 specifying the addend on the plt relocation. For -fpic code, the sym
5642 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5643 xxxxxxxx.got2.plt_pic32.<callee>. */
5646 add_stub_sym (struct plt_entry *ent,
5647 struct elf_link_hash_entry *h,
5648 struct bfd_link_info *info)
5650 struct elf_link_hash_entry *sh;
5651 size_t len1, len2, len3;
5654 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5657 stub = ".plt_pic32.";
5659 stub = ".plt_call32.";
5661 len1 = strlen (h->root.root.string);
5662 len2 = strlen (stub);
5665 len3 = strlen (ent->sec->name);
5666 name = bfd_malloc (len1 + len2 + len3 + 9);
5669 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5671 memcpy (name + 8, ent->sec->name, len3);
5672 memcpy (name + 8 + len3, stub, len2);
5673 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
5674 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5677 if (sh->root.type == bfd_link_hash_new)
5679 sh->root.type = bfd_link_hash_defined;
5680 sh->root.u.def.section = htab->glink;
5681 sh->root.u.def.value = ent->glink_offset;
5682 sh->ref_regular = 1;
5683 sh->def_regular = 1;
5684 sh->ref_regular_nonweak = 1;
5685 sh->forced_local = 1;
5691 /* Allocate NEED contiguous space in .got, and return the offset.
5692 Handles allocation of the got header when crossing 32k. */
5695 allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5698 unsigned int max_before_header;
5700 if (htab->plt_type == PLT_VXWORKS)
5702 where = htab->got->size;
5703 htab->got->size += need;
5707 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5708 if (need <= htab->got_gap)
5710 where = max_before_header - htab->got_gap;
5711 htab->got_gap -= need;
5715 if (htab->got->size + need > max_before_header
5716 && htab->got->size <= max_before_header)
5718 htab->got_gap = max_before_header - htab->got->size;
5719 htab->got->size = max_before_header + htab->got_header_size;
5721 where = htab->got->size;
5722 htab->got->size += need;
5728 /* Allocate space in associated reloc sections for dynamic relocs. */
5731 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5733 struct bfd_link_info *info = inf;
5734 struct ppc_elf_link_hash_entry *eh;
5735 struct ppc_elf_link_hash_table *htab;
5736 struct elf_dyn_relocs *p;
5738 if (h->root.type == bfd_link_hash_indirect)
5741 htab = ppc_elf_hash_table (info);
5742 if (htab->elf.dynamic_sections_created
5743 || h->type == STT_GNU_IFUNC)
5745 struct plt_entry *ent;
5746 bfd_boolean doneone = FALSE;
5747 bfd_vma plt_offset = 0, glink_offset = 0;
5750 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5751 if (ent->plt.refcount > 0)
5753 /* Make sure this symbol is output as a dynamic symbol. */
5754 if (h->dynindx == -1
5757 && htab->elf.dynamic_sections_created)
5759 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5763 dyn = htab->elf.dynamic_sections_created;
5765 || h->type == STT_GNU_IFUNC
5766 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5768 asection *s = htab->plt;
5769 if (!dyn || h->dynindx == -1)
5772 if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
5776 plt_offset = s->size;
5779 ent->plt.offset = plt_offset;
5782 if (!doneone || info->shared)
5784 glink_offset = s->size;
5785 s->size += GLINK_ENTRY_SIZE;
5786 if (h == htab->tls_get_addr
5787 && !htab->no_tls_get_addr_opt)
5788 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
5795 h->root.u.def.section = s;
5796 h->root.u.def.value = glink_offset;
5798 ent->glink_offset = glink_offset;
5800 if (htab->emit_stub_syms
5801 && !add_stub_sym (ent, h, info))
5808 /* If this is the first .plt entry, make room
5809 for the special first entry. */
5811 s->size += htab->plt_initial_entry_size;
5813 /* The PowerPC PLT is actually composed of two
5814 parts, the first part is 2 words (for a load
5815 and a jump), and then there is a remaining
5816 word available at the end. */
5817 plt_offset = (htab->plt_initial_entry_size
5818 + (htab->plt_slot_size
5820 - htab->plt_initial_entry_size)
5821 / htab->plt_entry_size)));
5823 /* If this symbol is not defined in a regular
5824 file, and we are not generating a shared
5825 library, then set the symbol to this location
5826 in the .plt. This is to avoid text
5827 relocations, and is required to make
5828 function pointers compare as equal between
5829 the normal executable and the shared library. */
5834 h->root.u.def.section = s;
5835 h->root.u.def.value = plt_offset;
5838 /* Make room for this entry. */
5839 s->size += htab->plt_entry_size;
5840 /* After the 8192nd entry, room for two entries
5842 if (htab->plt_type == PLT_OLD
5843 && (s->size - htab->plt_initial_entry_size)
5844 / htab->plt_entry_size
5845 > PLT_NUM_SINGLE_ENTRIES)
5846 s->size += htab->plt_entry_size;
5848 ent->plt.offset = plt_offset;
5851 /* We also need to make an entry in the .rela.plt section. */
5854 if (!htab->elf.dynamic_sections_created
5855 || h->dynindx == -1)
5856 htab->reliplt->size += sizeof (Elf32_External_Rela);
5859 htab->relplt->size += sizeof (Elf32_External_Rela);
5861 if (htab->plt_type == PLT_VXWORKS)
5863 /* Allocate space for the unloaded relocations. */
5865 && htab->elf.dynamic_sections_created)
5868 == (bfd_vma) htab->plt_initial_entry_size)
5870 htab->srelplt2->size
5871 += (sizeof (Elf32_External_Rela)
5872 * VXWORKS_PLTRESOLVE_RELOCS);
5875 htab->srelplt2->size
5876 += (sizeof (Elf32_External_Rela)
5877 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
5880 /* Every PLT entry has an associated GOT entry in
5882 htab->sgotplt->size += 4;
5889 ent->plt.offset = (bfd_vma) -1;
5892 ent->plt.offset = (bfd_vma) -1;
5896 h->plt.plist = NULL;
5902 h->plt.plist = NULL;
5906 eh = (struct ppc_elf_link_hash_entry *) h;
5907 if (eh->elf.got.refcount > 0)
5912 /* Make sure this symbol is output as a dynamic symbol. */
5913 if (eh->elf.dynindx == -1
5914 && !eh->elf.forced_local
5915 && eh->elf.type != STT_GNU_IFUNC
5916 && htab->elf.dynamic_sections_created)
5918 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
5923 if ((eh->tls_mask & TLS_TLS) != 0)
5925 if ((eh->tls_mask & TLS_LD) != 0)
5927 if (!eh->elf.def_dynamic)
5928 /* We'll just use htab->tlsld_got.offset. This should
5929 always be the case. It's a little odd if we have
5930 a local dynamic reloc against a non-local symbol. */
5931 htab->tlsld_got.refcount += 1;
5935 if ((eh->tls_mask & TLS_GD) != 0)
5937 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
5939 if ((eh->tls_mask & TLS_DTPREL) != 0)
5945 eh->elf.got.offset = (bfd_vma) -1;
5948 eh->elf.got.offset = allocate_got (htab, need);
5949 dyn = htab->elf.dynamic_sections_created;
5951 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
5952 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
5953 || eh->elf.root.type != bfd_link_hash_undefweak))
5955 asection *rsec = htab->relgot;
5957 if (eh->elf.type == STT_GNU_IFUNC)
5958 rsec = htab->reliplt;
5959 /* All the entries we allocated need relocs.
5960 Except LD only needs one. */
5961 if ((eh->tls_mask & TLS_LD) != 0
5962 && eh->elf.def_dynamic)
5964 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
5969 eh->elf.got.offset = (bfd_vma) -1;
5971 if (eh->dyn_relocs == NULL
5972 || !htab->elf.dynamic_sections_created)
5975 /* In the shared -Bsymbolic case, discard space allocated for
5976 dynamic pc-relative relocs against symbols which turn out to be
5977 defined in regular objects. For the normal shared case, discard
5978 space for relocs that have become local due to symbol visibility
5983 /* Relocs that use pc_count are those that appear on a call insn,
5984 or certain REL relocs (see must_be_dyn_reloc) that can be
5985 generated via assembly. We want calls to protected symbols to
5986 resolve directly to the function rather than going via the plt.
5987 If people want function pointer comparisons to work as expected
5988 then they should avoid writing weird assembly. */
5989 if (SYMBOL_CALLS_LOCAL (info, h))
5991 struct elf_dyn_relocs **pp;
5993 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5995 p->count -= p->pc_count;
6004 if (htab->is_vxworks)
6006 struct elf_dyn_relocs **pp;
6008 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
6010 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
6017 /* Discard relocs on undefined symbols that must be local. */
6018 if (eh->dyn_relocs != NULL
6019 && h->root.type == bfd_link_hash_undefined
6020 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
6021 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
6022 eh->dyn_relocs = NULL;
6024 /* Also discard relocs on undefined weak syms with non-default
6026 if (eh->dyn_relocs != NULL
6027 && h->root.type == bfd_link_hash_undefweak)
6029 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
6030 eh->dyn_relocs = NULL;
6032 /* Make sure undefined weak symbols are output as a dynamic
6034 else if (h->dynindx == -1
6038 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6043 else if (ELIMINATE_COPY_RELOCS)
6045 /* For the non-shared case, discard space for relocs against
6046 symbols which turn out to need copy relocs or are not
6052 /* Make sure this symbol is output as a dynamic symbol.
6053 Undefined weak syms won't yet be marked as dynamic. */
6054 if (h->dynindx == -1
6055 && !h->forced_local)
6057 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6061 /* If that succeeded, we know we'll be keeping all the
6063 if (h->dynindx != -1)
6067 eh->dyn_relocs = NULL;
6072 /* Finally, allocate space. */
6073 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6075 asection *sreloc = elf_section_data (p->sec)->sreloc;
6076 if (eh->elf.type == STT_GNU_IFUNC)
6077 sreloc = htab->reliplt;
6078 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6084 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
6085 read-only sections. */
6088 maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
6090 if (h->root.type == bfd_link_hash_indirect)
6093 if (readonly_dynrelocs (h))
6095 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
6097 /* Not an error, just cut short the traversal. */
6103 static const unsigned char glink_eh_frame_cie[] =
6105 0, 0, 0, 16, /* length. */
6106 0, 0, 0, 0, /* id. */
6107 1, /* CIE version. */
6108 'z', 'R', 0, /* Augmentation string. */
6109 4, /* Code alignment. */
6110 0x7c, /* Data alignment. */
6112 1, /* Augmentation size. */
6113 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6114 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6117 /* Set the sizes of the dynamic sections. */
6120 ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
6121 struct bfd_link_info *info)
6123 struct ppc_elf_link_hash_table *htab;
6129 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
6132 htab = ppc_elf_hash_table (info);
6133 BFD_ASSERT (htab->elf.dynobj != NULL);
6135 if (elf_hash_table (info)->dynamic_sections_created)
6137 /* Set the contents of the .interp section to the interpreter. */
6138 if (info->executable)
6140 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
6141 BFD_ASSERT (s != NULL);
6142 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6143 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6147 if (htab->plt_type == PLT_OLD)
6148 htab->got_header_size = 16;
6149 else if (htab->plt_type == PLT_NEW)
6150 htab->got_header_size = 12;
6152 /* Set up .got offsets for local syms, and space for local dynamic
6154 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6156 bfd_signed_vma *local_got;
6157 bfd_signed_vma *end_local_got;
6158 struct plt_entry **local_plt;
6159 struct plt_entry **end_local_plt;
6161 bfd_size_type locsymcount;
6162 Elf_Internal_Shdr *symtab_hdr;
6164 if (!is_ppc_elf (ibfd))
6167 for (s = ibfd->sections; s != NULL; s = s->next)
6169 struct ppc_dyn_relocs *p;
6171 for (p = ((struct ppc_dyn_relocs *)
6172 elf_section_data (s)->local_dynrel);
6176 if (!bfd_is_abs_section (p->sec)
6177 && bfd_is_abs_section (p->sec->output_section))
6179 /* Input section has been discarded, either because
6180 it is a copy of a linkonce section or due to
6181 linker script /DISCARD/, so we'll be discarding
6184 else if (htab->is_vxworks
6185 && strcmp (p->sec->output_section->name,
6188 /* Relocations in vxworks .tls_vars sections are
6189 handled specially by the loader. */
6191 else if (p->count != 0)
6193 asection *sreloc = elf_section_data (p->sec)->sreloc;
6195 sreloc = htab->reliplt;
6196 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6197 if ((p->sec->output_section->flags
6198 & (SEC_READONLY | SEC_ALLOC))
6199 == (SEC_READONLY | SEC_ALLOC))
6200 info->flags |= DF_TEXTREL;
6205 local_got = elf_local_got_refcounts (ibfd);
6209 symtab_hdr = &elf_symtab_hdr (ibfd);
6210 locsymcount = symtab_hdr->sh_info;
6211 end_local_got = local_got + locsymcount;
6212 local_plt = (struct plt_entry **) end_local_got;
6213 end_local_plt = local_plt + locsymcount;
6214 lgot_masks = (char *) end_local_plt;
6216 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6219 unsigned int need = 0;
6220 if ((*lgot_masks & TLS_TLS) != 0)
6222 if ((*lgot_masks & TLS_GD) != 0)
6224 if ((*lgot_masks & TLS_LD) != 0)
6225 htab->tlsld_got.refcount += 1;
6226 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6228 if ((*lgot_masks & TLS_DTPREL) != 0)
6234 *local_got = (bfd_vma) -1;
6237 *local_got = allocate_got (htab, need);
6240 asection *srel = htab->relgot;
6241 if ((*lgot_masks & PLT_IFUNC) != 0)
6242 srel = htab->reliplt;
6243 srel->size += need * (sizeof (Elf32_External_Rela) / 4);
6248 *local_got = (bfd_vma) -1;
6250 if (htab->is_vxworks)
6253 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6254 for (; local_plt < end_local_plt; ++local_plt)
6256 struct plt_entry *ent;
6257 bfd_boolean doneone = FALSE;
6258 bfd_vma plt_offset = 0, glink_offset = 0;
6260 for (ent = *local_plt; ent != NULL; ent = ent->next)
6261 if (ent->plt.refcount > 0)
6267 plt_offset = s->size;
6270 ent->plt.offset = plt_offset;
6273 if (!doneone || info->shared)
6275 glink_offset = s->size;
6276 s->size += GLINK_ENTRY_SIZE;
6278 ent->glink_offset = glink_offset;
6282 htab->reliplt->size += sizeof (Elf32_External_Rela);
6287 ent->plt.offset = (bfd_vma) -1;
6291 /* Allocate space for global sym dynamic relocs. */
6292 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6294 if (htab->tlsld_got.refcount > 0)
6296 htab->tlsld_got.offset = allocate_got (htab, 8);
6298 htab->relgot->size += sizeof (Elf32_External_Rela);
6301 htab->tlsld_got.offset = (bfd_vma) -1;
6303 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
6305 unsigned int g_o_t = 32768;
6307 /* If we haven't allocated the header, do so now. When we get here,
6308 for old plt/got the got size will be 0 to 32764 (not allocated),
6309 or 32780 to 65536 (header allocated). For new plt/got, the
6310 corresponding ranges are 0 to 32768 and 32780 to 65536. */
6311 if (htab->got->size <= 32768)
6313 g_o_t = htab->got->size;
6314 if (htab->plt_type == PLT_OLD)
6316 htab->got->size += htab->got_header_size;
6319 htab->elf.hgot->root.u.def.value = g_o_t;
6323 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6325 && !(sda->root.type == bfd_link_hash_defined
6326 || sda->root.type == bfd_link_hash_defweak))
6328 sda->root.type = bfd_link_hash_defined;
6329 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6330 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
6334 if (htab->glink != NULL
6335 && htab->glink->size != 0
6336 && htab->elf.dynamic_sections_created)
6338 htab->glink_pltresolve = htab->glink->size;
6339 /* Space for the branch table. */
6340 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6341 /* Pad out to align the start of PLTresolve. */
6342 htab->glink->size += -htab->glink->size & 15;
6343 htab->glink->size += GLINK_PLTRESOLVE;
6345 if (htab->emit_stub_syms)
6347 struct elf_link_hash_entry *sh;
6348 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6349 TRUE, FALSE, FALSE);
6352 if (sh->root.type == bfd_link_hash_new)
6354 sh->root.type = bfd_link_hash_defined;
6355 sh->root.u.def.section = htab->glink;
6356 sh->root.u.def.value = htab->glink_pltresolve;
6357 sh->ref_regular = 1;
6358 sh->def_regular = 1;
6359 sh->ref_regular_nonweak = 1;
6360 sh->forced_local = 1;
6363 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6364 TRUE, FALSE, FALSE);
6367 if (sh->root.type == bfd_link_hash_new)
6369 sh->root.type = bfd_link_hash_defined;
6370 sh->root.u.def.section = htab->glink;
6371 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6372 sh->ref_regular = 1;
6373 sh->def_regular = 1;
6374 sh->ref_regular_nonweak = 1;
6375 sh->forced_local = 1;
6381 if (htab->glink != NULL
6382 && htab->glink->size != 0
6383 && htab->glink_eh_frame != NULL
6384 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6385 && _bfd_elf_eh_frame_present (info))
6387 s = htab->glink_eh_frame;
6388 s->size = sizeof (glink_eh_frame_cie) + 20;
6392 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6397 /* We've now determined the sizes of the various dynamic sections.
6398 Allocate memory for them. */
6400 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
6402 bfd_boolean strip_section = TRUE;
6404 if ((s->flags & SEC_LINKER_CREATED) == 0)
6410 /* We'd like to strip these sections if they aren't needed, but if
6411 we've exported dynamic symbols from them we must leave them.
6412 It's too late to tell BFD to get rid of the symbols. */
6413 if (htab->elf.hplt != NULL)
6414 strip_section = FALSE;
6415 /* Strip this section if we don't need it; see the
6418 else if (s == htab->iplt
6420 || s == htab->glink_eh_frame
6421 || s == htab->sgotplt
6423 || s == htab->dynbss
6424 || s == htab->dynsbss
6425 || s == htab->sdata[0].section
6426 || s == htab->sdata[1].section)
6428 /* Strip these too. */
6430 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6435 /* Remember whether there are any relocation sections. */
6438 /* We use the reloc_count field as a counter if we need
6439 to copy relocs into the output file. */
6445 /* It's not one of our sections, so don't allocate space. */
6449 if (s->size == 0 && strip_section)
6451 /* If we don't need this section, strip it from the
6452 output file. This is mostly to handle .rela.bss and
6453 .rela.plt. We must create both sections in
6454 create_dynamic_sections, because they must be created
6455 before the linker maps input sections to output
6456 sections. The linker does that before
6457 adjust_dynamic_symbol is called, and it is that
6458 function which decides whether anything needs to go
6459 into these sections. */
6460 s->flags |= SEC_EXCLUDE;
6464 if ((s->flags & SEC_HAS_CONTENTS) == 0)
6467 /* Allocate memory for the section contents. */
6468 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6469 if (s->contents == NULL)
6473 if (htab->elf.dynamic_sections_created)
6475 /* Add some entries to the .dynamic section. We fill in the
6476 values later, in ppc_elf_finish_dynamic_sections, but we
6477 must add the entries now so that we get the correct size for
6478 the .dynamic section. The DT_DEBUG entry is filled in by the
6479 dynamic linker and used by the debugger. */
6480 #define add_dynamic_entry(TAG, VAL) \
6481 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6483 if (info->executable)
6485 if (!add_dynamic_entry (DT_DEBUG, 0))
6489 if (htab->plt != NULL && htab->plt->size != 0)
6491 if (!add_dynamic_entry (DT_PLTGOT, 0)
6492 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6493 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6494 || !add_dynamic_entry (DT_JMPREL, 0))
6498 if (htab->plt_type == PLT_NEW
6499 && htab->glink != NULL
6500 && htab->glink->size != 0)
6502 if (!add_dynamic_entry (DT_PPC_GOT, 0))
6504 if (!htab->no_tls_get_addr_opt
6505 && htab->tls_get_addr != NULL
6506 && htab->tls_get_addr->plt.plist != NULL
6507 && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
6513 if (!add_dynamic_entry (DT_RELA, 0)
6514 || !add_dynamic_entry (DT_RELASZ, 0)
6515 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6519 /* If any dynamic relocs apply to a read-only section, then we
6520 need a DT_TEXTREL entry. */
6521 if ((info->flags & DF_TEXTREL) == 0)
6522 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
6525 if ((info->flags & DF_TEXTREL) != 0)
6527 if (!add_dynamic_entry (DT_TEXTREL, 0))
6530 if (htab->is_vxworks
6531 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6534 #undef add_dynamic_entry
6536 if (htab->glink_eh_frame != NULL
6537 && htab->glink_eh_frame->contents != NULL)
6539 unsigned char *p = htab->glink_eh_frame->contents;
6542 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6543 /* CIE length (rewrite in case little-endian). */
6544 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6545 p += sizeof (glink_eh_frame_cie);
6547 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6548 bfd_put_32 (htab->elf.dynobj, val, p);
6551 val = p - htab->glink_eh_frame->contents;
6552 bfd_put_32 (htab->elf.dynobj, val, p);
6554 /* Offset to .glink. Set later. */
6557 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6563 && htab->elf.dynamic_sections_created)
6565 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6567 *p++ = DW_CFA_advance_loc + adv;
6570 *p++ = DW_CFA_advance_loc1;
6573 else if (adv < 65536)
6575 *p++ = DW_CFA_advance_loc2;
6576 bfd_put_16 (htab->elf.dynobj, adv, p);
6581 *p++ = DW_CFA_advance_loc4;
6582 bfd_put_32 (htab->elf.dynobj, adv, p);
6585 *p++ = DW_CFA_register;
6588 *p++ = DW_CFA_advance_loc + 4;
6589 *p++ = DW_CFA_restore_extended;
6592 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6593 == htab->glink_eh_frame->size);
6599 /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6602 ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6604 if (h->plt.plist != NULL
6606 && (!h->pointer_equality_needed
6607 || !h->ref_regular_nonweak))
6610 return _bfd_elf_hash_symbol (h);
6613 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6615 /* Relaxation trampolines. r12 is available for clobbering (r11, is
6616 used for some functions that are allowed to break the ABI). */
6617 static const int shared_stub_entry[] =
6619 0x7c0802a6, /* mflr 0 */
6620 0x429f0005, /* bcl 20, 31, .Lxxx */
6621 0x7d8802a6, /* mflr 12 */
6622 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
6623 0x398c0008, /* addi 12, 12, (xxx-.Lxxx)@l */
6624 0x7c0803a6, /* mtlr 0 */
6625 0x7d8903a6, /* mtctr 12 */
6626 0x4e800420, /* bctr */
6629 static const int stub_entry[] =
6631 0x3d800000, /* lis 12,xxx@ha */
6632 0x398c0000, /* addi 12,12,xxx@l */
6633 0x7d8903a6, /* mtctr 12 */
6634 0x4e800420, /* bctr */
6638 ppc_elf_relax_section (bfd *abfd,
6640 struct bfd_link_info *link_info,
6645 struct one_fixup *next;
6647 /* Final link, can use the symbol offset. For a
6648 relocatable link we use the symbol's index. */
6653 Elf_Internal_Shdr *symtab_hdr;
6654 bfd_byte *contents = NULL;
6655 Elf_Internal_Sym *isymbuf = NULL;
6656 Elf_Internal_Rela *internal_relocs = NULL;
6657 Elf_Internal_Rela *irel, *irelend;
6658 struct one_fixup *fixups = NULL;
6659 unsigned changes = 0;
6660 struct ppc_elf_link_hash_table *htab;
6661 bfd_size_type trampoff;
6663 bfd_boolean maybe_pasted;
6667 /* Nothing to do if there are no relocations, and no need to do
6668 anything with non-alloc or non-code sections. */
6669 if ((isec->flags & SEC_ALLOC) == 0
6670 || (isec->flags & SEC_CODE) == 0
6671 || (isec->flags & SEC_RELOC) == 0
6672 || isec->reloc_count == 0)
6675 /* We cannot represent the required PIC relocs in the output, so don't
6676 do anything. The linker doesn't support mixing -shared and -r
6678 if (link_info->relocatable && link_info->shared)
6681 trampoff = (isec->size + 3) & (bfd_vma) -4;
6682 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6683 || strcmp (isec->output_section->name, ".fini") == 0);
6684 /* Space for a branch around any trampolines. */
6688 symtab_hdr = &elf_symtab_hdr (abfd);
6690 /* Get a copy of the native relocations. */
6691 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6692 link_info->keep_memory);
6693 if (internal_relocs == NULL)
6696 htab = ppc_elf_hash_table (link_info);
6697 got2 = bfd_get_section_by_name (abfd, ".got2");
6699 irelend = internal_relocs + isec->reloc_count;
6700 for (irel = internal_relocs; irel < irelend; irel++)
6702 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
6705 struct one_fixup *f;
6706 size_t insn_offset = 0;
6707 bfd_vma max_branch_offset, val;
6710 struct elf_link_hash_entry *h;
6711 struct plt_entry **plist;
6712 unsigned char sym_type;
6717 case R_PPC_LOCAL24PC:
6718 case R_PPC_PLTREL24:
6719 max_branch_offset = 1 << 25;
6723 case R_PPC_REL14_BRTAKEN:
6724 case R_PPC_REL14_BRNTAKEN:
6725 max_branch_offset = 1 << 15;
6732 /* Get the value of the symbol referred to by the reloc. */
6734 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
6736 /* A local symbol. */
6737 Elf_Internal_Sym *isym;
6739 /* Read this BFD's local symbols. */
6740 if (isymbuf == NULL)
6742 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
6743 if (isymbuf == NULL)
6744 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
6745 symtab_hdr->sh_info, 0,
6750 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6751 if (isym->st_shndx == SHN_UNDEF)
6752 tsec = bfd_und_section_ptr;
6753 else if (isym->st_shndx == SHN_ABS)
6754 tsec = bfd_abs_section_ptr;
6755 else if (isym->st_shndx == SHN_COMMON)
6756 tsec = bfd_com_section_ptr;
6758 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
6760 toff = isym->st_value;
6761 sym_type = ELF_ST_TYPE (isym->st_info);
6765 /* Global symbol handling. */
6768 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6769 h = elf_sym_hashes (abfd)[indx];
6771 while (h->root.type == bfd_link_hash_indirect
6772 || h->root.type == bfd_link_hash_warning)
6773 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6775 if (h->root.type == bfd_link_hash_defined
6776 || h->root.type == bfd_link_hash_defweak)
6778 tsec = h->root.u.def.section;
6779 toff = h->root.u.def.value;
6781 else if (h->root.type == bfd_link_hash_undefined
6782 || h->root.type == bfd_link_hash_undefweak)
6784 tsec = bfd_und_section_ptr;
6785 toff = link_info->relocatable ? indx : 0;
6793 /* The condition here under which we call find_plt_ent must
6794 match that in relocate_section. If we call find_plt_ent here
6795 but not in relocate_section, or vice versa, then the branch
6796 destination used here may be incorrect. */
6800 /* We know is_branch_reloc (r_type) is true. */
6801 if (h->type == STT_GNU_IFUNC
6802 || r_type == R_PPC_PLTREL24)
6803 plist = &h->plt.plist;
6805 else if (sym_type == STT_GNU_IFUNC
6806 && elf_local_got_offsets (abfd) != NULL)
6808 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6809 struct plt_entry **local_plt = (struct plt_entry **)
6810 (local_got_offsets + symtab_hdr->sh_info);
6811 plist = local_plt + ELF32_R_SYM (irel->r_info);
6816 struct plt_entry *ent;
6818 if (r_type == R_PPC_PLTREL24 && link_info->shared)
6819 addend = irel->r_addend;
6820 ent = find_plt_ent (plist, got2, addend);
6823 if (htab->plt_type == PLT_NEW
6825 || !htab->elf.dynamic_sections_created
6826 || h->dynindx == -1)
6829 toff = ent->glink_offset;
6834 toff = ent->plt.offset;
6839 /* If the branch and target are in the same section, you have
6840 no hope of adding stubs. We'll error out later should the
6845 /* There probably isn't any reason to handle symbols in
6846 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
6847 attribute for a code section, and we are only looking at
6848 branches. However, implement it correctly here as a
6849 reference for other target relax_section functions. */
6850 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
6852 /* At this stage in linking, no SEC_MERGE symbol has been
6853 adjusted, so all references to such symbols need to be
6854 passed through _bfd_merged_section_offset. (Later, in
6855 relocate_section, all SEC_MERGE symbols *except* for
6856 section symbols have been adjusted.)
6858 gas may reduce relocations against symbols in SEC_MERGE
6859 sections to a relocation against the section symbol when
6860 the original addend was zero. When the reloc is against
6861 a section symbol we should include the addend in the
6862 offset passed to _bfd_merged_section_offset, since the
6863 location of interest is the original symbol. On the
6864 other hand, an access to "sym+addend" where "sym" is not
6865 a section symbol should not include the addend; Such an
6866 access is presumed to be an offset from "sym"; The
6867 location of interest is just "sym". */
6868 if (sym_type == STT_SECTION)
6869 toff += irel->r_addend;
6871 toff = _bfd_merged_section_offset (abfd, &tsec,
6872 elf_section_data (tsec)->sec_info,
6875 if (sym_type != STT_SECTION)
6876 toff += irel->r_addend;
6878 /* PLTREL24 addends are special. */
6879 else if (r_type != R_PPC_PLTREL24)
6880 toff += irel->r_addend;
6882 /* Attempted -shared link of non-pic code loses. */
6883 if (tsec->output_section == NULL)
6886 roff = irel->r_offset;
6888 /* If the branch is in range, no need to do anything. */
6889 if (tsec != bfd_und_section_ptr
6890 && (!link_info->relocatable
6891 /* A relocatable link may have sections moved during
6892 final link, so do not presume they remain in range. */
6893 || tsec->output_section == isec->output_section))
6895 bfd_vma symaddr, reladdr;
6897 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
6898 reladdr = isec->output_section->vma + isec->output_offset + roff;
6899 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
6903 /* Look for an existing fixup to this address. */
6904 for (f = fixups; f ; f = f->next)
6905 if (f->tsec == tsec && f->toff == toff)
6911 unsigned long stub_rtype;
6913 val = trampoff - roff;
6914 if (val >= max_branch_offset)
6915 /* Oh dear, we can't reach a trampoline. Don't try to add
6916 one. We'll report an error later. */
6919 if (link_info->shared)
6921 size = 4 * ARRAY_SIZE (shared_stub_entry);
6926 size = 4 * ARRAY_SIZE (stub_entry);
6929 stub_rtype = R_PPC_RELAX;
6930 if (tsec == htab->plt
6931 || tsec == htab->glink)
6933 stub_rtype = R_PPC_RELAX_PLT;
6934 if (r_type == R_PPC_PLTREL24)
6935 stub_rtype = R_PPC_RELAX_PLTREL24;
6938 /* Hijack the old relocation. Since we need two
6939 relocations for this use a "composite" reloc. */
6940 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
6942 irel->r_offset = trampoff + insn_offset;
6943 if (r_type == R_PPC_PLTREL24
6944 && stub_rtype != R_PPC_RELAX_PLTREL24)
6947 /* Record the fixup so we don't do it again this section. */
6948 f = bfd_malloc (sizeof (*f));
6952 f->trampoff = trampoff;
6960 val = f->trampoff - roff;
6961 if (val >= max_branch_offset)
6964 /* Nop out the reloc, since we're finalizing things here. */
6965 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
6968 /* Get the section contents. */
6969 if (contents == NULL)
6971 /* Get cached copy if it exists. */
6972 if (elf_section_data (isec)->this_hdr.contents != NULL)
6973 contents = elf_section_data (isec)->this_hdr.contents;
6976 /* Go get them off disk. */
6977 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
6982 /* Fix up the existing branch to hit the trampoline. */
6983 hit_addr = contents + roff;
6987 case R_PPC_LOCAL24PC:
6988 case R_PPC_PLTREL24:
6989 t0 = bfd_get_32 (abfd, hit_addr);
6991 t0 |= val & 0x3fffffc;
6992 bfd_put_32 (abfd, t0, hit_addr);
6996 case R_PPC_REL14_BRTAKEN:
6997 case R_PPC_REL14_BRNTAKEN:
6998 t0 = bfd_get_32 (abfd, hit_addr);
7001 bfd_put_32 (abfd, t0, hit_addr);
7006 /* Write out the trampolines. */
7015 struct one_fixup *f = fixups;
7016 fixups = fixups->next;
7021 contents = bfd_realloc_or_free (contents, trampoff);
7022 if (contents == NULL)
7025 isec->size = (isec->size + 3) & (bfd_vma) -4;
7026 dest = contents + isec->size;
7027 /* Branch around the trampolines. */
7030 bfd_vma val = B + trampoff - isec->size;
7031 bfd_put_32 (abfd, val, dest);
7034 isec->size = trampoff;
7036 if (link_info->shared)
7038 stub = shared_stub_entry;
7039 size = ARRAY_SIZE (shared_stub_entry);
7044 size = ARRAY_SIZE (stub_entry);
7048 while (dest < contents + trampoff)
7050 bfd_put_32 (abfd, stub[i], dest);
7056 BFD_ASSERT (i == 0);
7060 && symtab_hdr->contents != (unsigned char *) isymbuf)
7062 if (! link_info->keep_memory)
7066 /* Cache the symbols for elf_link_input_bfd. */
7067 symtab_hdr->contents = (unsigned char *) isymbuf;
7071 if (contents != NULL
7072 && elf_section_data (isec)->this_hdr.contents != contents)
7074 if (!changes && !link_info->keep_memory)
7078 /* Cache the section contents for elf_link_input_bfd. */
7079 elf_section_data (isec)->this_hdr.contents = contents;
7085 /* Append sufficient NOP relocs so we can write out relocation
7086 information for the trampolines. */
7087 Elf_Internal_Shdr *rel_hdr;
7088 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7089 * sizeof (*new_relocs));
7094 memcpy (new_relocs, internal_relocs,
7095 isec->reloc_count * sizeof (*new_relocs));
7096 for (ix = changes; ix--;)
7098 irel = new_relocs + ix + isec->reloc_count;
7100 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7102 if (internal_relocs != elf_section_data (isec)->relocs)
7103 free (internal_relocs);
7104 elf_section_data (isec)->relocs = new_relocs;
7105 isec->reloc_count += changes;
7106 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7107 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
7109 else if (elf_section_data (isec)->relocs != internal_relocs)
7110 free (internal_relocs);
7112 *again = changes != 0;
7113 if (!*again && link_info->relocatable)
7115 /* Convert the internal relax relocs to external form. */
7116 for (irel = internal_relocs; irel < irelend; irel++)
7117 if (ELF32_R_TYPE (irel->r_info) == R_PPC_RELAX)
7119 unsigned long r_symndx = ELF32_R_SYM (irel->r_info);
7121 /* Rewrite the reloc and convert one of the trailing nop
7122 relocs to describe this relocation. */
7123 BFD_ASSERT (ELF32_R_TYPE (irelend[-1].r_info) == R_PPC_NONE);
7124 /* The relocs are at the bottom 2 bytes */
7125 irel[0].r_offset += 2;
7126 memmove (irel + 1, irel, (irelend - irel - 1) * sizeof (*irel));
7127 irel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
7128 irel[1].r_offset += 4;
7129 irel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
7137 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7139 if (contents != NULL
7140 && elf_section_data (isec)->this_hdr.contents != contents)
7142 if (internal_relocs != NULL
7143 && elf_section_data (isec)->relocs != internal_relocs)
7144 free (internal_relocs);
7148 /* What to do when ld finds relocations against symbols defined in
7149 discarded sections. */
7152 ppc_elf_action_discarded (asection *sec)
7154 if (strcmp (".fixup", sec->name) == 0)
7157 if (strcmp (".got2", sec->name) == 0)
7160 return _bfd_elf_default_action_discarded (sec);
7163 /* Fill in the address for a pointer generated in a linker section. */
7166 elf_finish_pointer_linker_section (bfd *input_bfd,
7167 elf_linker_section_t *lsect,
7168 struct elf_link_hash_entry *h,
7170 const Elf_Internal_Rela *rel)
7172 elf_linker_section_pointers_t *linker_section_ptr;
7174 BFD_ASSERT (lsect != NULL);
7178 /* Handle global symbol. */
7179 struct ppc_elf_link_hash_entry *eh;
7181 eh = (struct ppc_elf_link_hash_entry *) h;
7182 BFD_ASSERT (eh->elf.def_regular);
7183 linker_section_ptr = eh->linker_section_pointer;
7187 /* Handle local symbol. */
7188 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
7190 BFD_ASSERT (is_ppc_elf (input_bfd));
7191 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
7192 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7195 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7198 BFD_ASSERT (linker_section_ptr != NULL);
7200 /* Offset will always be a multiple of four, so use the bottom bit
7201 as a "written" flag. */
7202 if ((linker_section_ptr->offset & 1) == 0)
7204 bfd_put_32 (lsect->section->owner,
7205 relocation + linker_section_ptr->addend,
7206 lsect->section->contents + linker_section_ptr->offset);
7207 linker_section_ptr->offset += 1;
7210 relocation = (lsect->section->output_section->vma
7211 + lsect->section->output_offset
7212 + linker_section_ptr->offset - 1
7213 - SYM_VAL (lsect->sym));
7217 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7218 lsect->name, (long) relocation, (long) relocation);
7224 #define PPC_LO(v) ((v) & 0xffff)
7225 #define PPC_HI(v) (((v) >> 16) & 0xffff)
7226 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
7229 write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
7230 struct bfd_link_info *info)
7232 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7233 bfd *output_bfd = info->output_bfd;
7236 plt = ((ent->plt.offset & ~1)
7237 + plt_sec->output_section->vma
7238 + plt_sec->output_offset);
7244 if (ent->addend >= 32768)
7246 + ent->sec->output_section->vma
7247 + ent->sec->output_offset);
7248 else if (htab->elf.hgot != NULL)
7249 got = SYM_VAL (htab->elf.hgot);
7253 if (plt + 0x8000 < 0x10000)
7255 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7257 bfd_put_32 (output_bfd, MTCTR_11, p);
7259 bfd_put_32 (output_bfd, BCTR, p);
7261 bfd_put_32 (output_bfd, NOP, p);
7266 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7268 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7270 bfd_put_32 (output_bfd, MTCTR_11, p);
7272 bfd_put_32 (output_bfd, BCTR, p);
7278 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7280 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7282 bfd_put_32 (output_bfd, MTCTR_11, p);
7284 bfd_put_32 (output_bfd, BCTR, p);
7289 /* Return true if symbol is defined statically. */
7292 is_static_defined (struct elf_link_hash_entry *h)
7294 return ((h->root.type == bfd_link_hash_defined
7295 || h->root.type == bfd_link_hash_defweak)
7296 && h->root.u.def.section != NULL
7297 && h->root.u.def.section->output_section != NULL);
7300 /* If INSN is an opcode that may be used with an @tls operand, return
7301 the transformed insn for TLS optimisation, otherwise return 0. If
7302 REG is non-zero only match an insn with RB or RA equal to REG. */
7305 _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7309 if ((insn & (0x3f << 26)) != 31 << 26)
7312 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7313 rtra = insn & ((1 << 26) - (1 << 16));
7314 else if (((insn >> 16) & 0x1f) == reg)
7315 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7319 if ((insn & (0x3ff << 1)) == 266 << 1)
7322 else if ((insn & (0x1f << 1)) == 23 << 1
7323 && ((insn & (0x1f << 6)) < 14 << 6
7324 || ((insn & (0x1f << 6)) >= 16 << 6
7325 && (insn & (0x1f << 6)) < 24 << 6)))
7326 /* load and store indexed -> dform. */
7327 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7328 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7329 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7330 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7331 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7333 insn = (58 << 26) | 2;
7340 /* If INSN is an opcode that may be used with an @tprel operand, return
7341 the transformed insn for an undefined weak symbol, ie. with the
7342 thread pointer REG operand removed. Otherwise return 0. */
7345 _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7347 if ((insn & (0x1f << 16)) == reg << 16
7348 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7349 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7350 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7351 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7352 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7353 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7354 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7355 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7356 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7357 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7358 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7359 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7360 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7361 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7362 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7363 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7365 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7366 && ((insn & 3) == 0 || (insn & 3) == 3))))
7368 insn &= ~(0x1f << 16);
7370 else if ((insn & (0x1f << 21)) == reg << 21
7371 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7372 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7373 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7375 insn &= ~(0x1f << 21);
7376 insn |= (insn & (0x1f << 16)) << 5;
7377 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7378 insn -= 2 >> 26; /* convert to ori,oris */
7386 is_insn_ds_form (unsigned int insn)
7388 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7389 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7390 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7391 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7395 is_insn_dq_form (unsigned int insn)
7397 return (insn & (0x3f << 26)) == 56u << 26; /* lq */
7400 /* The RELOCATE_SECTION function is called by the ELF backend linker
7401 to handle the relocations for a section.
7403 The relocs are always passed as Rela structures; if the section
7404 actually uses Rel structures, the r_addend field will always be
7407 This function is responsible for adjust the section contents as
7408 necessary, and (if using Rela relocs and generating a
7409 relocatable output file) adjusting the reloc addend as
7412 This function does not have to worry about setting the reloc
7413 address or the reloc symbol index.
7415 LOCAL_SYMS is a pointer to the swapped in local symbols.
7417 LOCAL_SECTIONS is an array giving the section in the input file
7418 corresponding to the st_shndx field of each local symbol.
7420 The global hash table entry for the global symbols can be found
7421 via elf_sym_hashes (input_bfd).
7423 When generating relocatable output, this function must handle
7424 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7425 going to be the section symbol corresponding to the output
7426 section, which means that the addend must be adjusted
7430 ppc_elf_relocate_section (bfd *output_bfd,
7431 struct bfd_link_info *info,
7433 asection *input_section,
7435 Elf_Internal_Rela *relocs,
7436 Elf_Internal_Sym *local_syms,
7437 asection **local_sections)
7439 Elf_Internal_Shdr *symtab_hdr;
7440 struct elf_link_hash_entry **sym_hashes;
7441 struct ppc_elf_link_hash_table *htab;
7442 Elf_Internal_Rela *rel;
7443 Elf_Internal_Rela *relend;
7444 Elf_Internal_Rela outrel;
7446 bfd_vma *local_got_offsets;
7447 bfd_boolean ret = TRUE;
7448 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
7449 bfd_boolean is_vxworks_tls;
7452 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7453 "%ld relocations%s",
7454 input_bfd, input_section,
7455 (long) input_section->reloc_count,
7456 (info->relocatable) ? " (relocatable)" : "");
7459 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7461 /* Initialize howto table if not already done. */
7462 if (!ppc_elf_howto_table[R_PPC_ADDR32])
7463 ppc_elf_howto_init ();
7465 htab = ppc_elf_hash_table (info);
7466 local_got_offsets = elf_local_got_offsets (input_bfd);
7467 symtab_hdr = &elf_symtab_hdr (input_bfd);
7468 sym_hashes = elf_sym_hashes (input_bfd);
7469 /* We have to handle relocations in vxworks .tls_vars sections
7470 specially, because the dynamic loader is 'weird'. */
7471 is_vxworks_tls = (htab->is_vxworks && info->shared
7472 && !strcmp (input_section->output_section->name,
7475 relend = relocs + input_section->reloc_count;
7476 for (; rel < relend; rel++)
7478 enum elf_ppc_reloc_type r_type;
7480 bfd_reloc_status_type r;
7481 Elf_Internal_Sym *sym;
7483 struct elf_link_hash_entry *h;
7484 const char *sym_name;
7485 reloc_howto_type *howto;
7486 unsigned long r_symndx;
7488 bfd_vma branch_bit, from;
7489 bfd_boolean unresolved_reloc;
7491 unsigned int tls_type, tls_mask, tls_gd;
7492 struct plt_entry **ifunc;
7494 r_type = ELF32_R_TYPE (rel->r_info);
7498 unresolved_reloc = FALSE;
7500 r_symndx = ELF32_R_SYM (rel->r_info);
7502 if (r_symndx < symtab_hdr->sh_info)
7504 sym = local_syms + r_symndx;
7505 sec = local_sections[r_symndx];
7506 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
7508 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
7512 bfd_boolean ignored;
7514 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7515 r_symndx, symtab_hdr, sym_hashes,
7517 unresolved_reloc, warned, ignored);
7519 sym_name = h->root.root.string;
7522 if (sec != NULL && discarded_section (sec))
7524 /* For relocs against symbols from removed linkonce sections,
7525 or sections discarded by a linker script, we just want the
7526 section contents zeroed. Avoid any special processing. */
7528 if (r_type < R_PPC_max)
7529 howto = ppc_elf_howto_table[r_type];
7530 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
7531 rel, 1, relend, howto, 0, contents);
7534 if (info->relocatable)
7537 && r_type == R_PPC_PLTREL24
7538 && rel->r_addend != 0)
7540 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7541 addend specifies the GOT pointer offset within .got2. */
7542 rel->r_addend += got2->output_offset;
7547 /* TLS optimizations. Replace instruction sequences and relocs
7548 based on information we collected in tls_optimize. We edit
7549 RELOCS so that --emit-relocs will output something sensible
7550 for the final instruction stream. */
7554 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7555 else if (local_got_offsets != NULL)
7557 struct plt_entry **local_plt;
7560 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7561 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
7562 tls_mask = lgot_masks[r_symndx];
7565 /* Ensure reloc mapping code below stays sane. */
7566 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7567 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7568 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7569 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7570 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7571 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7572 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7573 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7580 case R_PPC_GOT_TPREL16:
7581 case R_PPC_GOT_TPREL16_LO:
7582 if ((tls_mask & TLS_TLS) != 0
7583 && (tls_mask & TLS_TPREL) == 0)
7587 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
7589 insn |= 0x3c020000; /* addis 0,2,0 */
7590 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
7591 r_type = R_PPC_TPREL16_HA;
7592 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7597 if ((tls_mask & TLS_TLS) != 0
7598 && (tls_mask & TLS_TPREL) == 0)
7602 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7603 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7606 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7607 r_type = R_PPC_TPREL16_LO;
7608 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7610 /* Was PPC_TLS which sits on insn boundary, now
7611 PPC_TPREL16_LO which is at low-order half-word. */
7612 rel->r_offset += d_offset;
7616 case R_PPC_GOT_TLSGD16_HI:
7617 case R_PPC_GOT_TLSGD16_HA:
7618 tls_gd = TLS_TPRELGD;
7619 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7623 case R_PPC_GOT_TLSLD16_HI:
7624 case R_PPC_GOT_TLSLD16_HA:
7625 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7628 if ((tls_mask & tls_gd) != 0)
7629 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7630 + R_PPC_GOT_TPREL16);
7633 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7634 rel->r_offset -= d_offset;
7635 r_type = R_PPC_NONE;
7637 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7641 case R_PPC_GOT_TLSGD16:
7642 case R_PPC_GOT_TLSGD16_LO:
7643 tls_gd = TLS_TPRELGD;
7644 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7648 case R_PPC_GOT_TLSLD16:
7649 case R_PPC_GOT_TLSLD16_LO:
7650 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7652 unsigned int insn1, insn2;
7656 offset = (bfd_vma) -1;
7657 /* If not using the newer R_PPC_TLSGD/LD to mark
7658 __tls_get_addr calls, we must trust that the call
7659 stays with its arg setup insns, ie. that the next
7660 reloc is the __tls_get_addr call associated with
7661 the current reloc. Edit both insns. */
7662 if (input_section->has_tls_get_addr_call
7664 && branch_reloc_hash_match (input_bfd, rel + 1,
7665 htab->tls_get_addr))
7666 offset = rel[1].r_offset;
7667 if ((tls_mask & tls_gd) != 0)
7670 insn1 = bfd_get_32 (output_bfd,
7671 contents + rel->r_offset - d_offset);
7672 insn1 &= (1 << 26) - 1;
7673 insn1 |= 32 << 26; /* lwz */
7674 if (offset != (bfd_vma) -1)
7676 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7677 insn2 = 0x7c631214; /* add 3,3,2 */
7678 bfd_put_32 (output_bfd, insn2, contents + offset);
7680 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7681 + R_PPC_GOT_TPREL16);
7682 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7687 insn1 = 0x3c620000; /* addis 3,2,0 */
7690 /* Was an LD reloc. */
7692 r_symndx < symtab_hdr->sh_info;
7694 if (local_sections[r_symndx] == sec)
7696 if (r_symndx >= symtab_hdr->sh_info)
7697 r_symndx = STN_UNDEF;
7698 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7699 if (r_symndx != STN_UNDEF)
7700 rel->r_addend -= (local_syms[r_symndx].st_value
7701 + sec->output_offset
7702 + sec->output_section->vma);
7704 r_type = R_PPC_TPREL16_HA;
7705 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7706 if (offset != (bfd_vma) -1)
7708 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7709 rel[1].r_offset = offset + d_offset;
7710 rel[1].r_addend = rel->r_addend;
7711 insn2 = 0x38630000; /* addi 3,3,0 */
7712 bfd_put_32 (output_bfd, insn2, contents + offset);
7715 bfd_put_32 (output_bfd, insn1,
7716 contents + rel->r_offset - d_offset);
7719 /* We changed the symbol on an LD reloc. Start over
7720 in order to get h, sym, sec etc. right. */
7728 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7731 bfd_vma offset = rel->r_offset;
7733 if ((tls_mask & TLS_TPRELGD) != 0)
7736 r_type = R_PPC_NONE;
7737 insn2 = 0x7c631214; /* add 3,3,2 */
7742 r_type = R_PPC_TPREL16_LO;
7743 rel->r_offset += d_offset;
7744 insn2 = 0x38630000; /* addi 3,3,0 */
7746 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7747 bfd_put_32 (output_bfd, insn2, contents + offset);
7748 /* Zap the reloc on the _tls_get_addr call too. */
7749 BFD_ASSERT (offset == rel[1].r_offset);
7750 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7755 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7760 r_symndx < symtab_hdr->sh_info;
7762 if (local_sections[r_symndx] == sec)
7764 if (r_symndx >= symtab_hdr->sh_info)
7765 r_symndx = STN_UNDEF;
7766 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7767 if (r_symndx != STN_UNDEF)
7768 rel->r_addend -= (local_syms[r_symndx].st_value
7769 + sec->output_offset
7770 + sec->output_section->vma);
7772 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7773 rel->r_offset += d_offset;
7774 insn2 = 0x38630000; /* addi 3,3,0 */
7775 bfd_put_32 (output_bfd, insn2,
7776 contents + rel->r_offset - d_offset);
7777 /* Zap the reloc on the _tls_get_addr call too. */
7778 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
7779 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7786 /* Handle other relocations that tweak non-addend part of insn. */
7793 /* Branch taken prediction relocations. */
7794 case R_PPC_ADDR14_BRTAKEN:
7795 case R_PPC_REL14_BRTAKEN:
7796 branch_bit = BRANCH_PREDICT_BIT;
7799 /* Branch not taken prediction relocations. */
7800 case R_PPC_ADDR14_BRNTAKEN:
7801 case R_PPC_REL14_BRNTAKEN:
7805 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7806 insn &= ~BRANCH_PREDICT_BIT;
7809 from = (rel->r_offset
7810 + input_section->output_offset
7811 + input_section->output_section->vma);
7813 /* Invert 'y' bit if not the default. */
7814 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
7815 insn ^= BRANCH_PREDICT_BIT;
7817 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7823 if (!htab->is_vxworks)
7825 struct plt_entry *ent;
7829 if (h->type == STT_GNU_IFUNC)
7830 ifunc = &h->plt.plist;
7832 else if (local_got_offsets != NULL
7833 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
7835 struct plt_entry **local_plt;
7837 local_plt = (struct plt_entry **) (local_got_offsets
7838 + symtab_hdr->sh_info);
7839 ifunc = local_plt + r_symndx;
7845 || is_branch_reloc (r_type)))
7848 if (r_type == R_PPC_PLTREL24 && info->shared)
7849 addend = rel->r_addend;
7850 ent = find_plt_ent (ifunc, got2, addend);
7854 if (h == NULL && (ent->plt.offset & 1) == 0)
7856 Elf_Internal_Rela rela;
7859 rela.r_offset = (htab->iplt->output_section->vma
7860 + htab->iplt->output_offset
7862 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
7863 rela.r_addend = relocation;
7864 loc = htab->reliplt->contents;
7865 loc += (htab->reliplt->reloc_count++
7866 * sizeof (Elf32_External_Rela));
7867 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7869 ent->plt.offset |= 1;
7871 if (h == NULL && (ent->glink_offset & 1) == 0)
7873 unsigned char *p = ((unsigned char *) htab->glink->contents
7874 + ent->glink_offset);
7875 write_glink_stub (ent, htab->iplt, p, info);
7876 ent->glink_offset |= 1;
7879 unresolved_reloc = FALSE;
7880 if (htab->plt_type == PLT_NEW
7881 || !htab->elf.dynamic_sections_created
7883 || h->dynindx == -1)
7884 relocation = (htab->glink->output_section->vma
7885 + htab->glink->output_offset
7886 + (ent->glink_offset & ~1));
7888 relocation = (htab->plt->output_section->vma
7889 + htab->plt->output_offset
7894 addend = rel->r_addend;
7897 if (r_type < R_PPC_max)
7898 howto = ppc_elf_howto_table[r_type];
7902 info->callbacks->einfo
7903 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
7904 input_bfd, (int) r_type, sym_name);
7906 bfd_set_error (bfd_error_bad_value);
7914 case R_PPC_EMB_MRKREF:
7915 case R_PPC_GNU_VTINHERIT:
7916 case R_PPC_GNU_VTENTRY:
7919 /* GOT16 relocations. Like an ADDR16 using the symbol's
7920 address in the GOT as relocation value instead of the
7921 symbol's value itself. Also, create a GOT entry for the
7922 symbol and put the symbol value there. */
7923 case R_PPC_GOT_TLSGD16:
7924 case R_PPC_GOT_TLSGD16_LO:
7925 case R_PPC_GOT_TLSGD16_HI:
7926 case R_PPC_GOT_TLSGD16_HA:
7927 tls_type = TLS_TLS | TLS_GD;
7930 case R_PPC_GOT_TLSLD16:
7931 case R_PPC_GOT_TLSLD16_LO:
7932 case R_PPC_GOT_TLSLD16_HI:
7933 case R_PPC_GOT_TLSLD16_HA:
7934 tls_type = TLS_TLS | TLS_LD;
7937 case R_PPC_GOT_TPREL16:
7938 case R_PPC_GOT_TPREL16_LO:
7939 case R_PPC_GOT_TPREL16_HI:
7940 case R_PPC_GOT_TPREL16_HA:
7941 tls_type = TLS_TLS | TLS_TPREL;
7944 case R_PPC_GOT_DTPREL16:
7945 case R_PPC_GOT_DTPREL16_LO:
7946 case R_PPC_GOT_DTPREL16_HI:
7947 case R_PPC_GOT_DTPREL16_HA:
7948 tls_type = TLS_TLS | TLS_DTPREL;
7952 case R_PPC_GOT16_LO:
7953 case R_PPC_GOT16_HI:
7954 case R_PPC_GOT16_HA:
7958 /* Relocation is to the entry for this symbol in the global
7964 if (htab->got == NULL)
7968 if (tls_type == (TLS_TLS | TLS_LD)
7970 || !h->def_dynamic))
7971 offp = &htab->tlsld_got.offset;
7975 dyn = htab->elf.dynamic_sections_created;
7976 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7978 && SYMBOL_REFERENCES_LOCAL (info, h)))
7979 /* This is actually a static link, or it is a
7980 -Bsymbolic link and the symbol is defined
7981 locally, or the symbol was forced to be local
7982 because of a version file. */
7986 BFD_ASSERT (h->dynindx != -1);
7988 unresolved_reloc = FALSE;
7990 offp = &h->got.offset;
7994 if (local_got_offsets == NULL)
7996 offp = &local_got_offsets[r_symndx];
7999 /* The offset must always be a multiple of 4. We use the
8000 least significant bit to record whether we have already
8001 processed this entry. */
8007 unsigned int tls_m = (tls_mask
8008 & (TLS_LD | TLS_GD | TLS_DTPREL
8009 | TLS_TPREL | TLS_TPRELGD));
8011 if (offp == &htab->tlsld_got.offset)
8017 /* We might have multiple got entries for this sym.
8018 Initialize them all. */
8023 if ((tls_m & TLS_LD) != 0)
8025 tls_ty = TLS_TLS | TLS_LD;
8028 else if ((tls_m & TLS_GD) != 0)
8030 tls_ty = TLS_TLS | TLS_GD;
8033 else if ((tls_m & TLS_DTPREL) != 0)
8035 tls_ty = TLS_TLS | TLS_DTPREL;
8036 tls_m &= ~TLS_DTPREL;
8038 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
8040 tls_ty = TLS_TLS | TLS_TPREL;
8044 /* Generate relocs for the dynamic linker. */
8045 if ((info->shared || indx != 0)
8046 && (offp == &htab->tlsld_got.offset
8048 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8049 || h->root.type != bfd_link_hash_undefweak))
8051 asection *rsec = htab->relgot;
8055 rsec = htab->reliplt;
8056 outrel.r_offset = (htab->got->output_section->vma
8057 + htab->got->output_offset
8059 outrel.r_addend = 0;
8060 if (tls_ty & (TLS_LD | TLS_GD))
8062 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
8063 if (tls_ty == (TLS_TLS | TLS_GD))
8065 loc = rsec->contents;
8066 loc += (rsec->reloc_count++
8067 * sizeof (Elf32_External_Rela));
8068 bfd_elf32_swap_reloca_out (output_bfd,
8070 outrel.r_offset += 4;
8072 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8075 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8076 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8077 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8078 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
8080 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
8081 else if (ifunc != NULL)
8082 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8084 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
8085 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
8087 outrel.r_addend += relocation;
8088 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
8089 outrel.r_addend -= htab->elf.tls_sec->vma;
8091 loc = rsec->contents;
8092 loc += (rsec->reloc_count++
8093 * sizeof (Elf32_External_Rela));
8094 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
8097 /* Init the .got section contents if we're not
8098 emitting a reloc. */
8101 bfd_vma value = relocation;
8103 if (tls_ty == (TLS_TLS | TLS_LD))
8105 else if (tls_ty != 0)
8107 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
8108 if (tls_ty == (TLS_TLS | TLS_TPREL))
8109 value += DTP_OFFSET - TP_OFFSET;
8111 if (tls_ty == (TLS_TLS | TLS_GD))
8113 bfd_put_32 (output_bfd, value,
8114 htab->got->contents + off + 4);
8118 bfd_put_32 (output_bfd, value,
8119 htab->got->contents + off);
8123 if (tls_ty & (TLS_LD | TLS_GD))
8132 if (off >= (bfd_vma) -2)
8135 if ((tls_type & TLS_TLS) != 0)
8137 if (tls_type != (TLS_TLS | TLS_LD))
8139 if ((tls_mask & TLS_LD) != 0
8141 || !h->def_dynamic))
8143 if (tls_type != (TLS_TLS | TLS_GD))
8145 if ((tls_mask & TLS_GD) != 0)
8147 if (tls_type != (TLS_TLS | TLS_DTPREL))
8149 if ((tls_mask & TLS_DTPREL) != 0)
8156 relocation = (htab->got->output_section->vma
8157 + htab->got->output_offset
8159 - SYM_VAL (htab->elf.hgot));
8161 /* Addends on got relocations don't make much sense.
8162 x+off@got is actually x@got+off, and since the got is
8163 generated by a hash table traversal, the value in the
8164 got at entry m+n bears little relation to the entry m. */
8166 info->callbacks->einfo
8167 (_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
8168 input_bfd, input_section, rel->r_offset,
8174 /* Relocations that need no special processing. */
8175 case R_PPC_LOCAL24PC:
8176 /* It makes no sense to point a local relocation
8177 at a symbol not in this object. */
8178 if (unresolved_reloc)
8180 if (! (*info->callbacks->undefined_symbol) (info,
8181 h->root.root.string,
8191 case R_PPC_DTPREL16:
8192 case R_PPC_DTPREL16_LO:
8193 case R_PPC_DTPREL16_HI:
8194 case R_PPC_DTPREL16_HA:
8195 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8198 /* Relocations that may need to be propagated if this is a shared
8201 case R_PPC_TPREL16_LO:
8202 case R_PPC_TPREL16_HI:
8203 case R_PPC_TPREL16_HA:
8205 && h->root.type == bfd_link_hash_undefweak
8206 && h->dynindx == -1)
8208 /* Make this relocation against an undefined weak symbol
8209 resolve to zero. This is really just a tweak, since
8210 code using weak externs ought to check that they are
8211 defined before using them. */
8212 bfd_byte *p = contents + rel->r_offset - d_offset;
8213 unsigned int insn = bfd_get_32 (output_bfd, p);
8214 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8216 bfd_put_32 (output_bfd, insn, p);
8219 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8220 /* The TPREL16 relocs shouldn't really be used in shared
8221 libs as they will result in DT_TEXTREL being set, but
8222 support them anyway. */
8226 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8229 case R_PPC_DTPREL32:
8230 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8233 case R_PPC_DTPMOD32:
8239 case R_PPC_REL16_LO:
8240 case R_PPC_REL16_HI:
8241 case R_PPC_REL16_HA:
8245 if (h == NULL || h == htab->elf.hgot)
8251 case R_PPC_ADDR16_LO:
8252 case R_PPC_ADDR16_HI:
8253 case R_PPC_ADDR16_HA:
8258 case R_PPC_VLE_REL8:
8259 case R_PPC_VLE_REL15:
8260 case R_PPC_VLE_REL24:
8263 case R_PPC_REL14_BRTAKEN:
8264 case R_PPC_REL14_BRNTAKEN:
8265 /* If these relocations are not to a named symbol, they can be
8266 handled right here, no need to bother the dynamic linker. */
8267 if (SYMBOL_CALLS_LOCAL (info, h)
8268 || h == htab->elf.hgot)
8274 case R_PPC_ADDR14_BRTAKEN:
8275 case R_PPC_ADDR14_BRNTAKEN:
8276 if (h != NULL && !info->shared)
8281 if ((input_section->flags & SEC_ALLOC) == 0
8287 && ((h->root.type == bfd_link_hash_undefined
8288 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
8289 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
8290 || (h->root.type == bfd_link_hash_undefweak
8291 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
8292 && (must_be_dyn_reloc (info, r_type)
8293 || !SYMBOL_CALLS_LOCAL (info, h)))
8294 || (ELIMINATE_COPY_RELOCS
8299 && !h->def_regular))
8305 fprintf (stderr, "ppc_elf_relocate_section needs to "
8306 "create relocation for %s\n",
8307 (h && h->root.root.string
8308 ? h->root.root.string : "<unknown>"));
8311 /* When generating a shared object, these relocations
8312 are copied into the output file to be resolved at run
8314 sreloc = elf_section_data (input_section)->sreloc;
8316 sreloc = htab->reliplt;
8321 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8324 if (outrel.r_offset == (bfd_vma) -1
8325 || outrel.r_offset == (bfd_vma) -2)
8326 skip = (int) outrel.r_offset;
8327 outrel.r_offset += (input_section->output_section->vma
8328 + input_section->output_offset);
8331 memset (&outrel, 0, sizeof outrel);
8333 && (h->root.type == bfd_link_hash_undefined
8334 || h->root.type == bfd_link_hash_undefweak))
8335 || !SYMBOL_REFERENCES_LOCAL (info, h))
8337 BFD_ASSERT (h->dynindx != -1);
8338 unresolved_reloc = FALSE;
8339 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
8340 outrel.r_addend = rel->r_addend;
8344 outrel.r_addend = relocation + rel->r_addend;
8346 if (r_type != R_PPC_ADDR32)
8352 /* If we get here when building a static
8353 executable, then the libc startup function
8354 responsible for applying indirect function
8355 relocations is going to complain about
8357 If we get here when building a dynamic
8358 executable, it will be because we have
8359 a text relocation. The dynamic loader
8360 will set the text segment writable and
8361 non-executable to apply text relocations.
8362 So we'll segfault when trying to run the
8363 indirection function to resolve the reloc. */
8364 info->callbacks->einfo
8365 (_("%P: %H: relocation %s for indirect "
8366 "function %s unsupported\n"),
8367 input_bfd, input_section, rel->r_offset,
8372 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
8374 else if (sec == NULL || sec->owner == NULL)
8376 bfd_set_error (bfd_error_bad_value);
8383 /* We are turning this relocation into one
8384 against a section symbol. It would be
8385 proper to subtract the symbol's value,
8386 osec->vma, from the emitted reloc addend,
8387 but ld.so expects buggy relocs.
8388 FIXME: Why not always use a zero index? */
8389 osec = sec->output_section;
8390 indx = elf_section_data (osec)->dynindx;
8393 osec = htab->elf.text_index_section;
8394 indx = elf_section_data (osec)->dynindx;
8396 BFD_ASSERT (indx != 0);
8399 printf ("indx=%ld section=%s flags=%08x name=%s\n",
8400 indx, osec->name, osec->flags,
8401 h->root.root.string);
8405 outrel.r_info = ELF32_R_INFO (indx, r_type);
8407 else if (ifunc != NULL)
8408 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8410 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
8413 loc = sreloc->contents;
8414 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8415 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
8420 /* This reloc will be computed at runtime. We clear the memory
8421 so that it contains predictable value. */
8423 && ((input_section->flags & SEC_ALLOC) != 0
8424 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
8426 relocation = howto->pc_relative ? outrel.r_offset : 0;
8433 case R_PPC_RELAX_PLT:
8434 case R_PPC_RELAX_PLTREL24:
8437 struct plt_entry *ent;
8438 bfd_vma got2_addend = 0;
8440 if (r_type == R_PPC_RELAX_PLTREL24)
8443 got2_addend = addend;
8446 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
8447 if (htab->plt_type == PLT_NEW)
8448 relocation = (htab->glink->output_section->vma
8449 + htab->glink->output_offset
8450 + ent->glink_offset);
8452 relocation = (htab->plt->output_section->vma
8453 + htab->plt->output_offset
8460 relocation -= (input_section->output_section->vma
8461 + input_section->output_offset
8462 + rel->r_offset - 4);
8468 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
8469 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
8471 /* We're clearing the bits for R_PPC_ADDR16_HA
8472 and R_PPC_ADDR16_LO here. */
8476 /* t0 is HA, t1 is LO */
8477 relocation += addend;
8478 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
8479 t1 |= relocation & 0xffff;
8481 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
8482 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
8484 /* Rewrite the reloc and convert one of the trailing nop
8485 relocs to describe this relocation. */
8486 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
8487 /* The relocs are at the bottom 2 bytes */
8488 rel[0].r_offset += 2;
8489 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
8490 rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
8491 rel[1].r_offset += 4;
8492 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
8497 /* Indirect .sdata relocation. */
8498 case R_PPC_EMB_SDAI16:
8499 BFD_ASSERT (htab->sdata[0].section != NULL);
8500 if (!is_static_defined (htab->sdata[0].sym))
8502 unresolved_reloc = TRUE;
8506 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
8507 h, relocation, rel);
8511 /* Indirect .sdata2 relocation. */
8512 case R_PPC_EMB_SDA2I16:
8513 BFD_ASSERT (htab->sdata[1].section != NULL);
8514 if (!is_static_defined (htab->sdata[1].sym))
8516 unresolved_reloc = TRUE;
8520 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
8521 h, relocation, rel);
8525 /* Handle the TOC16 reloc. We want to use the offset within the .got
8526 section, not the actual VMA. This is appropriate when generating
8527 an embedded ELF object, for which the .got section acts like the
8528 AIX .toc section. */
8529 case R_PPC_TOC16: /* phony GOT16 relocations */
8530 if (sec == NULL || sec->output_section == NULL)
8532 unresolved_reloc = TRUE;
8535 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
8537 || strcmp (bfd_get_section_name (sec->owner, sec),
8540 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
8543 case R_PPC_PLTREL24:
8544 if (h != NULL && ifunc == NULL)
8546 struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2,
8547 info->shared ? addend : 0);
8549 || htab->plt == NULL)
8551 /* We didn't make a PLT entry for this symbol. This
8552 happens when statically linking PIC code, or when
8553 using -Bsymbolic. */
8557 /* Relocation is to the entry for this symbol in the
8558 procedure linkage table. */
8559 unresolved_reloc = FALSE;
8560 if (htab->plt_type == PLT_NEW)
8561 relocation = (htab->glink->output_section->vma
8562 + htab->glink->output_offset
8563 + ent->glink_offset);
8565 relocation = (htab->plt->output_section->vma
8566 + htab->plt->output_offset
8571 /* R_PPC_PLTREL24 is rather special. If non-zero, the
8572 addend specifies the GOT pointer offset within .got2.
8573 Don't apply it to the relocation field. */
8577 /* Relocate against _SDA_BASE_. */
8578 case R_PPC_SDAREL16:
8581 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
8584 || sec->output_section == NULL
8585 || !is_static_defined (sda))
8587 unresolved_reloc = TRUE;
8590 addend -= SYM_VAL (sda);
8592 name = bfd_get_section_name (output_bfd, sec->output_section);
8593 if (! ((CONST_STRNEQ (name, ".sdata")
8594 && (name[6] == 0 || name[6] == '.'))
8595 || (CONST_STRNEQ (name, ".sbss")
8596 && (name[5] == 0 || name[5] == '.'))))
8598 info->callbacks->einfo
8599 (_("%P: %B: the target (%s) of a %s relocation is "
8600 "in the wrong output section (%s)\n"),
8609 /* Relocate against _SDA2_BASE_. */
8610 case R_PPC_EMB_SDA2REL:
8613 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
8616 || sec->output_section == NULL
8617 || !is_static_defined (sda))
8619 unresolved_reloc = TRUE;
8622 addend -= SYM_VAL (sda);
8624 name = bfd_get_section_name (output_bfd, sec->output_section);
8625 if (! (CONST_STRNEQ (name, ".sdata2")
8626 || CONST_STRNEQ (name, ".sbss2")))
8628 info->callbacks->einfo
8629 (_("%P: %B: the target (%s) of a %s relocation is "
8630 "in the wrong output section (%s)\n"),
8639 case R_PPC_VLE_LO16A:
8640 relocation = (relocation + addend) & 0xffff;
8641 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8642 relocation, split16a_type);
8645 case R_PPC_VLE_LO16D:
8646 relocation = (relocation + addend) & 0xffff;
8647 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8648 relocation, split16d_type);
8651 case R_PPC_VLE_HI16A:
8652 relocation = ((relocation + addend) >> 16) & 0xffff;
8653 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8654 relocation, split16a_type);
8657 case R_PPC_VLE_HI16D:
8658 relocation = ((relocation + addend) >> 16) & 0xffff;
8659 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8660 relocation, split16d_type);
8663 case R_PPC_VLE_HA16A:
8665 bfd_vma value = relocation + addend;
8666 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8667 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8668 value, split16a_type);
8672 case R_PPC_VLE_HA16D:
8674 bfd_vma value = relocation + addend;
8675 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8676 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8677 value, split16d_type);
8681 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
8682 case R_PPC_EMB_SDA21:
8683 case R_PPC_VLE_SDA21:
8684 case R_PPC_EMB_RELSDA:
8685 case R_PPC_VLE_SDA21_LO:
8689 struct elf_link_hash_entry *sda = NULL;
8691 if (sec == NULL || sec->output_section == NULL)
8693 unresolved_reloc = TRUE;
8697 name = bfd_get_section_name (output_bfd, sec->output_section);
8698 if (((CONST_STRNEQ (name, ".sdata")
8699 && (name[6] == 0 || name[6] == '.'))
8700 || (CONST_STRNEQ (name, ".sbss")
8701 && (name[5] == 0 || name[5] == '.'))))
8704 sda = htab->sdata[0].sym;
8706 else if (CONST_STRNEQ (name, ".sdata2")
8707 || CONST_STRNEQ (name, ".sbss2"))
8710 sda = htab->sdata[1].sym;
8712 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
8713 || strcmp (name, ".PPC.EMB.sbss0") == 0)
8719 info->callbacks->einfo
8720 (_("%P: %B: the target (%s) of a %s relocation is "
8721 "in the wrong output section (%s)\n"),
8727 bfd_set_error (bfd_error_bad_value);
8734 if (!is_static_defined (sda))
8736 unresolved_reloc = TRUE;
8739 addend -= SYM_VAL (sda);
8743 && (r_type == R_PPC_VLE_SDA21
8744 || r_type == R_PPC_VLE_SDA21_LO))
8746 /* Use the split20 format. */
8747 bfd_vma insn, bits12to15, bits21to31;
8748 bfd_vma value = (relocation + rel->r_offset) & 0xffff;
8749 /* Propagate sign bit, if necessary. */
8750 insn = (value & 0x8000) ? 0x70107800 : 0x70000000;
8751 bits12to15 = value & 0x700;
8752 bits21to31 = value & 0x7ff;
8755 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8758 else if (r_type == R_PPC_EMB_SDA21
8759 || r_type == R_PPC_VLE_SDA21
8760 || r_type == R_PPC_VLE_SDA21_LO)
8762 bfd_vma insn; /* Fill in register field. */
8764 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
8765 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
8766 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8771 case R_PPC_VLE_SDAREL_LO16A:
8772 case R_PPC_VLE_SDAREL_LO16D:
8773 case R_PPC_VLE_SDAREL_HI16A:
8774 case R_PPC_VLE_SDAREL_HI16D:
8775 case R_PPC_VLE_SDAREL_HA16A:
8776 case R_PPC_VLE_SDAREL_HA16D:
8781 struct elf_link_hash_entry *sda = NULL;
8783 if (sec == NULL || sec->output_section == NULL)
8785 unresolved_reloc = TRUE;
8789 name = bfd_get_section_name (output_bfd, sec->output_section);
8790 if (((CONST_STRNEQ (name, ".sdata")
8791 && (name[6] == 0 || name[6] == '.'))
8792 || (CONST_STRNEQ (name, ".sbss")
8793 && (name[5] == 0 || name[5] == '.'))))
8796 sda = htab->sdata[0].sym;
8798 else if (CONST_STRNEQ (name, ".sdata2")
8799 || CONST_STRNEQ (name, ".sbss2"))
8802 sda = htab->sdata[1].sym;
8806 (*_bfd_error_handler)
8807 (_("%B: the target (%s) of a %s relocation is "
8808 "in the wrong output section (%s)"),
8814 bfd_set_error (bfd_error_bad_value);
8821 if (!is_static_defined (sda))
8823 unresolved_reloc = TRUE;
8828 value = sda->root.u.def.section->output_section->vma
8829 + sda->root.u.def.section->output_offset;
8831 if (r_type == R_PPC_VLE_SDAREL_LO16A)
8833 value = (value + addend) & 0xffff;
8834 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8835 value, split16a_type);
8837 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
8839 value = (value + addend) & 0xffff;
8840 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8841 value, split16d_type);
8843 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
8845 value = ((value + addend) >> 16) & 0xffff;
8846 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8847 value, split16a_type);
8849 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
8851 value = ((value + addend) >> 16) & 0xffff;
8852 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8853 value, split16d_type);
8855 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
8858 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8859 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8860 value, split16a_type);
8862 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
8865 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8866 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8867 value, split16d_type);
8872 /* Relocate against the beginning of the section. */
8874 case R_PPC_SECTOFF_LO:
8875 case R_PPC_SECTOFF_HI:
8876 case R_PPC_SECTOFF_HA:
8877 if (sec == NULL || sec->output_section == NULL)
8879 unresolved_reloc = TRUE;
8882 addend -= sec->output_section->vma;
8885 /* Negative relocations. */
8886 case R_PPC_EMB_NADDR32:
8887 case R_PPC_EMB_NADDR16:
8888 case R_PPC_EMB_NADDR16_LO:
8889 case R_PPC_EMB_NADDR16_HI:
8890 case R_PPC_EMB_NADDR16_HA:
8891 addend -= 2 * relocation;
8895 case R_PPC_GLOB_DAT:
8896 case R_PPC_JMP_SLOT:
8897 case R_PPC_RELATIVE:
8898 case R_PPC_IRELATIVE:
8900 case R_PPC_PLTREL32:
8901 case R_PPC_PLT16_LO:
8902 case R_PPC_PLT16_HI:
8903 case R_PPC_PLT16_HA:
8905 case R_PPC_EMB_RELSEC16:
8906 case R_PPC_EMB_RELST_LO:
8907 case R_PPC_EMB_RELST_HI:
8908 case R_PPC_EMB_RELST_HA:
8909 case R_PPC_EMB_BIT_FLD:
8910 info->callbacks->einfo
8911 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
8916 bfd_set_error (bfd_error_invalid_operation);
8921 /* Do any further special processing. */
8927 case R_PPC_ADDR16_HA:
8928 case R_PPC_REL16_HA:
8929 case R_PPC_SECTOFF_HA:
8930 case R_PPC_TPREL16_HA:
8931 case R_PPC_DTPREL16_HA:
8932 case R_PPC_EMB_NADDR16_HA:
8933 case R_PPC_EMB_RELST_HA:
8934 /* It's just possible that this symbol is a weak symbol
8935 that's not actually defined anywhere. In that case,
8936 'sec' would be NULL, and we should leave the symbol
8937 alone (it will be set to zero elsewhere in the link). */
8942 case R_PPC_PLT16_HA:
8943 case R_PPC_GOT16_HA:
8944 case R_PPC_GOT_TLSGD16_HA:
8945 case R_PPC_GOT_TLSLD16_HA:
8946 case R_PPC_GOT_TPREL16_HA:
8947 case R_PPC_GOT_DTPREL16_HA:
8948 /* Add 0x10000 if sign bit in 0:15 is set.
8949 Bits 0:15 are not used. */
8954 case R_PPC_ADDR16_LO:
8956 case R_PPC_GOT16_LO:
8957 case R_PPC_SDAREL16:
8959 case R_PPC_SECTOFF_LO:
8960 case R_PPC_DTPREL16:
8961 case R_PPC_DTPREL16_LO:
8963 case R_PPC_TPREL16_LO:
8964 case R_PPC_GOT_TLSGD16:
8965 case R_PPC_GOT_TLSGD16_LO:
8966 case R_PPC_GOT_TLSLD16:
8967 case R_PPC_GOT_TLSLD16_LO:
8968 case R_PPC_GOT_DTPREL16:
8969 case R_PPC_GOT_DTPREL16_LO:
8970 case R_PPC_GOT_TPREL16:
8971 case R_PPC_GOT_TPREL16_LO:
8973 /* The 32-bit ABI lacks proper relocations to deal with
8974 certain 64-bit instructions. Prevent damage to bits
8975 that make up part of the insn opcode. */
8976 unsigned int insn, mask, lobit;
8978 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
8980 if (is_insn_ds_form (insn))
8982 else if (is_insn_dq_form (insn))
8986 lobit = mask & (relocation + addend);
8990 info->callbacks->einfo
8991 (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
8992 input_bfd, input_section, rel->r_offset,
8993 howto->name, sym_name, mask + 1);
8994 bfd_set_error (bfd_error_bad_value);
8997 addend += insn & mask;
9003 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
9004 "offset = %ld, addend = %ld\n",
9009 (long) rel->r_offset,
9013 if (unresolved_reloc
9014 && !((input_section->flags & SEC_DEBUGGING) != 0
9016 && _bfd_elf_section_offset (output_bfd, info, input_section,
9017 rel->r_offset) != (bfd_vma) -1)
9019 info->callbacks->einfo
9020 (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
9021 input_bfd, input_section, rel->r_offset,
9027 r = _bfd_final_link_relocate (howto,
9035 if (r != bfd_reloc_ok)
9037 if (r == bfd_reloc_overflow)
9042 && h->root.type == bfd_link_hash_undefweak
9043 && howto->pc_relative)
9045 /* Assume this is a call protected by other code that
9046 detect the symbol is undefined. If this is the case,
9047 we can safely ignore the overflow. If not, the
9048 program is hosed anyway, and a little warning isn't
9054 if (! (*info->callbacks->reloc_overflow) (info,
9055 (h ? &h->root : NULL),
9066 info->callbacks->einfo
9067 (_("%P: %H: %s reloc against `%s': error %d\n"),
9068 input_bfd, input_section, rel->r_offset,
9069 howto->name, sym_name, (int) r);
9076 fprintf (stderr, "\n");
9082 /* Finish up dynamic symbol handling. We set the contents of various
9083 dynamic sections here. */
9086 ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
9087 struct bfd_link_info *info,
9088 struct elf_link_hash_entry *h,
9089 Elf_Internal_Sym *sym)
9091 struct ppc_elf_link_hash_table *htab;
9092 struct plt_entry *ent;
9093 bfd_boolean doneone;
9096 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
9097 h->root.root.string);
9100 htab = ppc_elf_hash_table (info);
9101 BFD_ASSERT (htab->elf.dynobj != NULL);
9104 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
9105 if (ent->plt.offset != (bfd_vma) -1)
9109 Elf_Internal_Rela rela;
9111 bfd_vma reloc_index;
9113 if (htab->plt_type == PLT_NEW
9114 || !htab->elf.dynamic_sections_created
9115 || h->dynindx == -1)
9116 reloc_index = ent->plt.offset / 4;
9119 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
9120 / htab->plt_slot_size);
9121 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
9122 && htab->plt_type == PLT_OLD)
9123 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
9126 /* This symbol has an entry in the procedure linkage table.
9128 if (htab->plt_type == PLT_VXWORKS
9129 && htab->elf.dynamic_sections_created
9130 && h->dynindx != -1)
9133 const bfd_vma *plt_entry;
9135 /* The first three entries in .got.plt are reserved. */
9136 got_offset = (reloc_index + 3) * 4;
9138 /* Use the right PLT. */
9139 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
9140 : ppc_elf_vxworks_plt_entry;
9142 /* Fill in the .plt on VxWorks. */
9145 bfd_put_32 (output_bfd,
9146 plt_entry[0] | PPC_HA (got_offset),
9147 htab->plt->contents + ent->plt.offset + 0);
9148 bfd_put_32 (output_bfd,
9149 plt_entry[1] | PPC_LO (got_offset),
9150 htab->plt->contents + ent->plt.offset + 4);
9154 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9156 bfd_put_32 (output_bfd,
9157 plt_entry[0] | PPC_HA (got_loc),
9158 htab->plt->contents + ent->plt.offset + 0);
9159 bfd_put_32 (output_bfd,
9160 plt_entry[1] | PPC_LO (got_loc),
9161 htab->plt->contents + ent->plt.offset + 4);
9164 bfd_put_32 (output_bfd, plt_entry[2],
9165 htab->plt->contents + ent->plt.offset + 8);
9166 bfd_put_32 (output_bfd, plt_entry[3],
9167 htab->plt->contents + ent->plt.offset + 12);
9169 /* This instruction is an immediate load. The value loaded is
9170 the byte offset of the R_PPC_JMP_SLOT relocation from the
9171 start of the .rela.plt section. The value is stored in the
9172 low-order 16 bits of the load instruction. */
9173 /* NOTE: It appears that this is now an index rather than a
9174 prescaled offset. */
9175 bfd_put_32 (output_bfd,
9176 plt_entry[4] | reloc_index,
9177 htab->plt->contents + ent->plt.offset + 16);
9178 /* This instruction is a PC-relative branch whose target is
9179 the start of the PLT section. The address of this branch
9180 instruction is 20 bytes beyond the start of this PLT entry.
9181 The address is encoded in bits 6-29, inclusive. The value
9182 stored is right-shifted by two bits, permitting a 26-bit
9184 bfd_put_32 (output_bfd,
9186 | (-(ent->plt.offset + 20) & 0x03fffffc)),
9187 htab->plt->contents + ent->plt.offset + 20);
9188 bfd_put_32 (output_bfd, plt_entry[6],
9189 htab->plt->contents + ent->plt.offset + 24);
9190 bfd_put_32 (output_bfd, plt_entry[7],
9191 htab->plt->contents + ent->plt.offset + 28);
9193 /* Fill in the GOT entry corresponding to this PLT slot with
9194 the address immediately after the "bctr" instruction
9195 in this PLT entry. */
9196 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
9197 + htab->plt->output_offset
9198 + ent->plt.offset + 16),
9199 htab->sgotplt->contents + got_offset);
9203 /* Fill in a couple of entries in .rela.plt.unloaded. */
9204 loc = htab->srelplt2->contents
9205 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
9206 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
9207 * sizeof (Elf32_External_Rela));
9209 /* Provide the @ha relocation for the first instruction. */
9210 rela.r_offset = (htab->plt->output_section->vma
9211 + htab->plt->output_offset
9212 + ent->plt.offset + 2);
9213 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9215 rela.r_addend = got_offset;
9216 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9217 loc += sizeof (Elf32_External_Rela);
9219 /* Provide the @l relocation for the second instruction. */
9220 rela.r_offset = (htab->plt->output_section->vma
9221 + htab->plt->output_offset
9222 + ent->plt.offset + 6);
9223 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9225 rela.r_addend = got_offset;
9226 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9227 loc += sizeof (Elf32_External_Rela);
9229 /* Provide a relocation for the GOT entry corresponding to this
9230 PLT slot. Point it at the middle of the .plt entry. */
9231 rela.r_offset = (htab->sgotplt->output_section->vma
9232 + htab->sgotplt->output_offset
9234 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9236 rela.r_addend = ent->plt.offset + 16;
9237 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9240 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
9241 In particular, the offset for the relocation is not the
9242 address of the PLT entry for this function, as specified
9243 by the ABI. Instead, the offset is set to the address of
9244 the GOT slot for this function. See EABI 4.4.4.1. */
9245 rela.r_offset = (htab->sgotplt->output_section->vma
9246 + htab->sgotplt->output_offset
9252 asection *splt = htab->plt;
9253 if (!htab->elf.dynamic_sections_created
9254 || h->dynindx == -1)
9257 rela.r_offset = (splt->output_section->vma
9258 + splt->output_offset
9260 if (htab->plt_type == PLT_OLD
9261 || !htab->elf.dynamic_sections_created
9262 || h->dynindx == -1)
9264 /* We don't need to fill in the .plt. The ppc dynamic
9265 linker will fill it in. */
9269 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
9270 + htab->glink->output_section->vma
9271 + htab->glink->output_offset);
9272 bfd_put_32 (output_bfd, val,
9273 splt->contents + ent->plt.offset);
9277 /* Fill in the entry in the .rela.plt section. */
9279 if (!htab->elf.dynamic_sections_created
9280 || h->dynindx == -1)
9282 BFD_ASSERT (h->type == STT_GNU_IFUNC
9284 && (h->root.type == bfd_link_hash_defined
9285 || h->root.type == bfd_link_hash_defweak));
9286 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
9287 rela.r_addend = SYM_VAL (h);
9290 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
9292 if (!htab->elf.dynamic_sections_created
9293 || h->dynindx == -1)
9294 loc = (htab->reliplt->contents
9295 + (htab->reliplt->reloc_count++
9296 * sizeof (Elf32_External_Rela)));
9298 loc = (htab->relplt->contents
9299 + reloc_index * sizeof (Elf32_External_Rela));
9300 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9302 if (!h->def_regular)
9304 /* Mark the symbol as undefined, rather than as
9305 defined in the .plt section. Leave the value if
9306 there were any relocations where pointer equality
9307 matters (this is a clue for the dynamic linker, to
9308 make function pointer comparisons work between an
9309 application and shared library), otherwise set it
9311 sym->st_shndx = SHN_UNDEF;
9312 if (!h->pointer_equality_needed)
9314 else if (!h->ref_regular_nonweak)
9316 /* This breaks function pointer comparisons, but
9317 that is better than breaking tests for a NULL
9318 function pointer. */
9322 else if (h->type == STT_GNU_IFUNC
9325 /* Set the value of ifunc symbols in a non-pie
9326 executable to the glink entry. This is to avoid
9327 text relocations. We can't do this for ifunc in
9328 allocate_dynrelocs, as we do for normal dynamic
9329 function symbols with plt entries, because we need
9330 to keep the original value around for the ifunc
9332 sym->st_shndx = (_bfd_elf_section_from_bfd_section
9333 (output_bfd, htab->glink->output_section));
9334 sym->st_value = (ent->glink_offset
9335 + htab->glink->output_offset
9336 + htab->glink->output_section->vma);
9341 if (htab->plt_type == PLT_NEW
9342 || !htab->elf.dynamic_sections_created
9343 || h->dynindx == -1)
9346 asection *splt = htab->plt;
9347 if (!htab->elf.dynamic_sections_created
9348 || h->dynindx == -1)
9351 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
9353 if (h == htab->tls_get_addr && !htab->no_tls_get_addr_opt)
9355 bfd_put_32 (output_bfd, LWZ_11_3, p);
9357 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
9359 bfd_put_32 (output_bfd, MR_0_3, p);
9361 bfd_put_32 (output_bfd, CMPWI_11_0, p);
9363 bfd_put_32 (output_bfd, ADD_3_12_2, p);
9365 bfd_put_32 (output_bfd, BEQLR, p);
9367 bfd_put_32 (output_bfd, MR_3_0, p);
9369 bfd_put_32 (output_bfd, NOP, p);
9373 write_glink_stub (ent, splt, p, info);
9376 /* We only need one non-PIC glink stub. */
9386 Elf_Internal_Rela rela;
9389 /* This symbols needs a copy reloc. Set it up. */
9392 fprintf (stderr, ", copy");
9395 BFD_ASSERT (h->dynindx != -1);
9397 if (ppc_elf_hash_entry (h)->has_sda_refs)
9401 BFD_ASSERT (s != NULL);
9403 rela.r_offset = SYM_VAL (h);
9404 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
9406 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
9407 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9411 fprintf (stderr, "\n");
9417 static enum elf_reloc_type_class
9418 ppc_elf_reloc_type_class (const struct bfd_link_info *info,
9419 const asection *rel_sec,
9420 const Elf_Internal_Rela *rela)
9422 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
9424 if (rel_sec == htab->reliplt)
9425 return reloc_class_ifunc;
9427 switch (ELF32_R_TYPE (rela->r_info))
9429 case R_PPC_RELATIVE:
9430 return reloc_class_relative;
9431 case R_PPC_JMP_SLOT:
9432 return reloc_class_plt;
9434 return reloc_class_copy;
9436 return reloc_class_normal;
9440 /* Finish up the dynamic sections. */
9443 ppc_elf_finish_dynamic_sections (bfd *output_bfd,
9444 struct bfd_link_info *info)
9448 struct ppc_elf_link_hash_table *htab;
9451 bfd_boolean ret = TRUE;
9454 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
9457 htab = ppc_elf_hash_table (info);
9458 dynobj = elf_hash_table (info)->dynobj;
9459 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
9460 if (htab->is_vxworks)
9461 splt = bfd_get_linker_section (dynobj, ".plt");
9466 if (htab->elf.hgot != NULL)
9467 got = SYM_VAL (htab->elf.hgot);
9469 if (htab->elf.dynamic_sections_created)
9471 Elf32_External_Dyn *dyncon, *dynconend;
9473 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
9475 dyncon = (Elf32_External_Dyn *) sdyn->contents;
9476 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
9477 for (; dyncon < dynconend; dyncon++)
9479 Elf_Internal_Dyn dyn;
9482 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
9487 if (htab->is_vxworks)
9491 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9495 dyn.d_un.d_val = htab->relplt->size;
9500 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9504 dyn.d_un.d_ptr = got;
9508 if (htab->is_vxworks)
9511 dyn.d_un.d_ptr -= htab->relplt->size;
9517 if (htab->is_vxworks
9518 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
9523 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
9527 if (htab->got != NULL)
9529 if (htab->elf.hgot->root.u.def.section == htab->got
9530 || htab->elf.hgot->root.u.def.section == htab->sgotplt)
9532 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
9534 p += htab->elf.hgot->root.u.def.value;
9535 if (htab->plt_type == PLT_OLD)
9537 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
9538 so that a function can easily find the address of
9539 _GLOBAL_OFFSET_TABLE_. */
9540 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
9541 < htab->elf.hgot->root.u.def.section->size);
9542 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
9547 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
9548 BFD_ASSERT (htab->elf.hgot->root.u.def.value
9549 < htab->elf.hgot->root.u.def.section->size);
9550 bfd_put_32 (output_bfd, val, p);
9555 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
9556 htab->elf.hgot->root.root.string,
9557 (htab->sgotplt != NULL
9558 ? htab->sgotplt->name : htab->got->name));
9559 bfd_set_error (bfd_error_bad_value);
9563 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
9566 /* Fill in the first entry in the VxWorks procedure linkage table. */
9567 if (splt && splt->size > 0)
9569 /* Use the right PLT. */
9570 const bfd_vma *plt_entry = (info->shared
9571 ? ppc_elf_vxworks_pic_plt0_entry
9572 : ppc_elf_vxworks_plt0_entry);
9576 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9578 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9579 splt->contents + 0);
9580 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9581 splt->contents + 4);
9585 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
9586 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
9588 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
9589 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
9590 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
9591 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
9592 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
9593 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
9597 Elf_Internal_Rela rela;
9600 loc = htab->srelplt2->contents;
9602 /* Output the @ha relocation for the first instruction. */
9603 rela.r_offset = (htab->plt->output_section->vma
9604 + htab->plt->output_offset
9606 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9608 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9609 loc += sizeof (Elf32_External_Rela);
9611 /* Output the @l relocation for the second instruction. */
9612 rela.r_offset = (htab->plt->output_section->vma
9613 + htab->plt->output_offset
9615 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9617 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9618 loc += sizeof (Elf32_External_Rela);
9620 /* Fix up the remaining relocations. They may have the wrong
9621 symbol index for _G_O_T_ or _P_L_T_ depending on the order
9622 in which symbols were output. */
9623 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
9625 Elf_Internal_Rela rel;
9627 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9628 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9629 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9630 loc += sizeof (Elf32_External_Rela);
9632 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9633 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9634 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9635 loc += sizeof (Elf32_External_Rela);
9637 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9638 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9639 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9640 loc += sizeof (Elf32_External_Rela);
9645 if (htab->glink != NULL
9646 && htab->glink->contents != NULL
9647 && htab->elf.dynamic_sections_created)
9650 unsigned char *endp;
9655 * PIC glink code is the following:
9657 * # ith PLT code stub.
9658 * addis 11,30,(plt+(i-1)*4-got)@ha
9659 * lwz 11,(plt+(i-1)*4-got)@l(11)
9663 * # A table of branches, one for each plt entry.
9664 * # The idea is that the plt call stub loads ctr and r11 with these
9665 * # addresses, so (r11 - res_0) gives the plt index * 4.
9666 * res_0: b PLTresolve
9667 * res_1: b PLTresolve
9669 * # Some number of entries towards the end can be nops
9675 * addis 11,11,(1f-res_0)@ha
9678 * 1: addi 11,11,(1b-res_0)@l
9681 * sub 11,11,12 # r11 = index * 4
9682 * addis 12,12,(got+4-1b)@ha
9683 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
9684 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
9687 * add 11,0,11 # r11 = index * 12 = reloc offset.
9690 static const unsigned int pic_plt_resolve[] =
9711 * Non-PIC glink code is a little simpler.
9713 * # ith PLT code stub.
9714 * lis 11,(plt+(i-1)*4)@ha
9715 * lwz 11,(plt+(i-1)*4)@l(11)
9719 * The branch table is the same, then comes
9723 * addis 11,11,(-res_0)@ha
9724 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
9725 * addi 11,11,(-res_0)@l # r11 = index * 4
9728 * lwz 12,(got+8)@l(12) # got[2] contains the map address
9729 * add 11,0,11 # r11 = index * 12 = reloc offset.
9732 static const unsigned int plt_resolve[] =
9752 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
9754 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
9757 /* Build the branch table, one for each plt entry (less one),
9758 and perhaps some padding. */
9759 p = htab->glink->contents;
9760 p += htab->glink_pltresolve;
9761 endp = htab->glink->contents;
9762 endp += htab->glink->size - GLINK_PLTRESOLVE;
9763 while (p < endp - 8 * 4)
9765 bfd_put_32 (output_bfd, B + endp - p, p);
9770 bfd_put_32 (output_bfd, NOP, p);
9774 res0 = (htab->glink_pltresolve
9775 + htab->glink->output_section->vma
9776 + htab->glink->output_offset);
9778 /* Last comes the PLTresolve stub. */
9783 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
9785 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
9788 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
9790 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
9791 + htab->glink->output_section->vma
9792 + htab->glink->output_offset);
9794 bfd_put_32 (output_bfd,
9795 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
9796 bfd_put_32 (output_bfd,
9797 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
9798 bfd_put_32 (output_bfd,
9799 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
9800 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
9802 bfd_put_32 (output_bfd,
9803 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
9804 bfd_put_32 (output_bfd,
9805 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
9809 bfd_put_32 (output_bfd,
9810 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
9811 bfd_put_32 (output_bfd,
9812 LWZ_12_12 + 4, p + 9*4);
9817 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
9819 bfd_put_32 (output_bfd, plt_resolve[i], p);
9822 p -= 4 * ARRAY_SIZE (plt_resolve);
9824 bfd_put_32 (output_bfd,
9825 LIS_12 + PPC_HA (got + 4), p + 0*4);
9826 bfd_put_32 (output_bfd,
9827 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
9828 bfd_put_32 (output_bfd,
9829 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
9830 if (PPC_HA (got + 4) == PPC_HA (got + 8))
9832 bfd_put_32 (output_bfd,
9833 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
9834 bfd_put_32 (output_bfd,
9835 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
9839 bfd_put_32 (output_bfd,
9840 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
9841 bfd_put_32 (output_bfd,
9842 LWZ_12_12 + 4, p + 6*4);
9847 if (htab->glink_eh_frame != NULL
9848 && htab->glink_eh_frame->contents != NULL)
9850 unsigned char *p = htab->glink_eh_frame->contents;
9853 p += sizeof (glink_eh_frame_cie);
9858 /* Offset to .glink. */
9859 val = (htab->glink->output_section->vma
9860 + htab->glink->output_offset);
9861 val -= (htab->glink_eh_frame->output_section->vma
9862 + htab->glink_eh_frame->output_offset);
9863 val -= p - htab->glink_eh_frame->contents;
9864 bfd_put_32 (htab->elf.dynobj, val, p);
9866 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
9867 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
9868 htab->glink_eh_frame,
9869 htab->glink_eh_frame->contents))
9876 #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
9877 #define TARGET_LITTLE_NAME "elf32-powerpcle"
9878 #define TARGET_BIG_SYM bfd_elf32_powerpc_vec
9879 #define TARGET_BIG_NAME "elf32-powerpc"
9880 #define ELF_ARCH bfd_arch_powerpc
9881 #define ELF_TARGET_ID PPC32_ELF_DATA
9882 #define ELF_MACHINE_CODE EM_PPC
9883 #ifdef __QNXTARGET__
9884 #define ELF_MAXPAGESIZE 0x1000
9886 #define ELF_MAXPAGESIZE 0x10000
9888 #define ELF_MINPAGESIZE 0x1000
9889 #define ELF_COMMONPAGESIZE 0x1000
9890 #define elf_info_to_howto ppc_elf_info_to_howto
9892 #ifdef EM_CYGNUS_POWERPC
9893 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
9897 #define ELF_MACHINE_ALT2 EM_PPC_OLD
9900 #define elf_backend_plt_not_loaded 1
9901 #define elf_backend_can_gc_sections 1
9902 #define elf_backend_can_refcount 1
9903 #define elf_backend_rela_normal 1
9905 #define bfd_elf32_mkobject ppc_elf_mkobject
9906 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
9907 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
9908 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
9909 #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
9910 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
9911 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
9912 #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
9914 #define elf_backend_object_p ppc_elf_object_p
9915 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
9916 #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
9917 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
9918 #define elf_backend_relocate_section ppc_elf_relocate_section
9919 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
9920 #define elf_backend_check_relocs ppc_elf_check_relocs
9921 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
9922 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
9923 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
9924 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
9925 #define elf_backend_hash_symbol ppc_elf_hash_symbol
9926 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
9927 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
9928 #define elf_backend_fake_sections ppc_elf_fake_sections
9929 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
9930 #define elf_backend_modify_segment_map ppc_elf_modify_segment_map
9931 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
9932 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
9933 #define elf_backend_write_core_note ppc_elf_write_core_note
9934 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
9935 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
9936 #define elf_backend_final_write_processing ppc_elf_final_write_processing
9937 #define elf_backend_write_section ppc_elf_write_section
9938 #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
9939 #define elf_backend_plt_sym_val ppc_elf_plt_sym_val
9940 #define elf_backend_action_discarded ppc_elf_action_discarded
9941 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
9942 #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
9943 #define elf_backend_section_processing ppc_elf_section_processing
9945 #include "elf32-target.h"
9947 /* FreeBSD Target */
9949 #undef TARGET_LITTLE_SYM
9950 #undef TARGET_LITTLE_NAME
9952 #undef TARGET_BIG_SYM
9953 #define TARGET_BIG_SYM bfd_elf32_powerpc_freebsd_vec
9954 #undef TARGET_BIG_NAME
9955 #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
9958 #define ELF_OSABI ELFOSABI_FREEBSD
9961 #define elf32_bed elf32_powerpc_fbsd_bed
9963 #include "elf32-target.h"
9965 /* VxWorks Target */
9967 #undef TARGET_LITTLE_SYM
9968 #undef TARGET_LITTLE_NAME
9970 #undef TARGET_BIG_SYM
9971 #define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
9972 #undef TARGET_BIG_NAME
9973 #define TARGET_BIG_NAME "elf32-powerpc-vxworks"
9977 /* VxWorks uses the elf default section flags for .plt. */
9978 static const struct bfd_elf_special_section *
9979 ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9981 if (sec->name == NULL)
9984 if (strcmp (sec->name, ".plt") == 0)
9985 return _bfd_elf_get_sec_type_attr (abfd, sec);
9987 return ppc_elf_get_sec_type_attr (abfd, sec);
9990 /* Like ppc_elf_link_hash_table_create, but overrides
9991 appropriately for VxWorks. */
9992 static struct bfd_link_hash_table *
9993 ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
9995 struct bfd_link_hash_table *ret;
9997 ret = ppc_elf_link_hash_table_create (abfd);
10000 struct ppc_elf_link_hash_table *htab
10001 = (struct ppc_elf_link_hash_table *)ret;
10002 htab->is_vxworks = 1;
10003 htab->plt_type = PLT_VXWORKS;
10004 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
10005 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
10006 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
10011 /* Tweak magic VxWorks symbols as they are loaded. */
10013 ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
10014 struct bfd_link_info *info,
10015 Elf_Internal_Sym *sym,
10016 const char **namep ATTRIBUTE_UNUSED,
10017 flagword *flagsp ATTRIBUTE_UNUSED,
10021 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
10025 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
10029 ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
10031 ppc_elf_final_write_processing(abfd, linker);
10032 elf_vxworks_final_write_processing(abfd, linker);
10035 /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
10037 #undef elf_backend_want_plt_sym
10038 #define elf_backend_want_plt_sym 1
10039 #undef elf_backend_want_got_plt
10040 #define elf_backend_want_got_plt 1
10041 #undef elf_backend_got_symbol_offset
10042 #define elf_backend_got_symbol_offset 0
10043 #undef elf_backend_plt_not_loaded
10044 #define elf_backend_plt_not_loaded 0
10045 #undef elf_backend_plt_readonly
10046 #define elf_backend_plt_readonly 1
10047 #undef elf_backend_got_header_size
10048 #define elf_backend_got_header_size 12
10050 #undef bfd_elf32_get_synthetic_symtab
10052 #undef bfd_elf32_bfd_link_hash_table_create
10053 #define bfd_elf32_bfd_link_hash_table_create \
10054 ppc_elf_vxworks_link_hash_table_create
10055 #undef elf_backend_add_symbol_hook
10056 #define elf_backend_add_symbol_hook \
10057 ppc_elf_vxworks_add_symbol_hook
10058 #undef elf_backend_link_output_symbol_hook
10059 #define elf_backend_link_output_symbol_hook \
10060 elf_vxworks_link_output_symbol_hook
10061 #undef elf_backend_final_write_processing
10062 #define elf_backend_final_write_processing \
10063 ppc_elf_vxworks_final_write_processing
10064 #undef elf_backend_get_sec_type_attr
10065 #define elf_backend_get_sec_type_attr \
10066 ppc_elf_vxworks_get_sec_type_attr
10067 #undef elf_backend_emit_relocs
10068 #define elf_backend_emit_relocs \
10069 elf_vxworks_emit_relocs
10072 #define elf32_bed ppc_elf_vxworks_bed
10073 #undef elf_backend_post_process_headers
10075 #include "elf32-target.h"
projects / external / binutils.git / blob