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;
3916 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3917 This shows up in particular in an R_PPC_ADDR32 in the eabi
3920 && htab->got == NULL
3921 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3923 if (htab->elf.dynobj == NULL)
3924 htab->elf.dynobj = abfd;
3925 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3927 BFD_ASSERT (h == htab->elf.hgot);
3931 r_type = ELF32_R_TYPE (rel->r_info);
3932 if (h == NULL && !htab->is_vxworks)
3934 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3939 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
3941 struct plt_entry **ifunc;
3943 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
3944 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
3949 /* STT_GNU_IFUNC symbols must have a PLT entry;
3950 In a non-pie executable even when there are
3953 || is_branch_reloc (r_type))
3956 if (r_type == R_PPC_PLTREL24)
3958 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3960 addend = rel->r_addend;
3962 if (!update_plt_info (abfd, ifunc, got2, addend))
3968 if (!htab->is_vxworks
3969 && is_branch_reloc (r_type)
3974 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
3975 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
3976 /* We have a new-style __tls_get_addr call with a marker
3980 /* Mark this section as having an old-style call. */
3981 sec->has_tls_get_addr_call = 1;
3988 /* These special tls relocs tie a call to __tls_get_addr with
3989 its parameter symbol. */
3992 case R_PPC_GOT_TLSLD16:
3993 case R_PPC_GOT_TLSLD16_LO:
3994 case R_PPC_GOT_TLSLD16_HI:
3995 case R_PPC_GOT_TLSLD16_HA:
3996 tls_type = TLS_TLS | TLS_LD;
3999 case R_PPC_GOT_TLSGD16:
4000 case R_PPC_GOT_TLSGD16_LO:
4001 case R_PPC_GOT_TLSGD16_HI:
4002 case R_PPC_GOT_TLSGD16_HA:
4003 tls_type = TLS_TLS | TLS_GD;
4006 case R_PPC_GOT_TPREL16:
4007 case R_PPC_GOT_TPREL16_LO:
4008 case R_PPC_GOT_TPREL16_HI:
4009 case R_PPC_GOT_TPREL16_HA:
4010 if (!info->executable)
4011 info->flags |= DF_STATIC_TLS;
4012 tls_type = TLS_TLS | TLS_TPREL;
4015 case R_PPC_GOT_DTPREL16:
4016 case R_PPC_GOT_DTPREL16_LO:
4017 case R_PPC_GOT_DTPREL16_HI:
4018 case R_PPC_GOT_DTPREL16_HA:
4019 tls_type = TLS_TLS | TLS_DTPREL;
4021 sec->has_tls_reloc = 1;
4024 /* GOT16 relocations */
4026 case R_PPC_GOT16_LO:
4027 case R_PPC_GOT16_HI:
4028 case R_PPC_GOT16_HA:
4029 /* This symbol requires a global offset table entry. */
4030 if (htab->got == NULL)
4032 if (htab->elf.dynobj == NULL)
4033 htab->elf.dynobj = abfd;
4034 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4039 h->got.refcount += 1;
4040 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4043 /* This is a global offset table entry for a local symbol. */
4044 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4047 /* We may also need a plt entry if the symbol turns out to be
4049 if (h != NULL && !info->shared)
4051 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4056 /* Indirect .sdata relocation. */
4057 case R_PPC_EMB_SDAI16:
4060 bad_shared_reloc (abfd, r_type);
4063 if (htab->sdata[0].section == NULL
4064 && !ppc_elf_create_linker_section (abfd, info, 0,
4067 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
4072 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4073 h->non_got_ref = TRUE;
4077 /* Indirect .sdata2 relocation. */
4078 case R_PPC_EMB_SDA2I16:
4081 bad_shared_reloc (abfd, r_type);
4084 if (htab->sdata[1].section == NULL
4085 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
4088 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
4093 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4094 h->non_got_ref = TRUE;
4098 case R_PPC_VLE_SDAREL_LO16A:
4099 case R_PPC_VLE_SDAREL_LO16D:
4100 case R_PPC_VLE_SDAREL_HI16A:
4101 case R_PPC_VLE_SDAREL_HI16D:
4102 case R_PPC_VLE_SDAREL_HA16A:
4103 case R_PPC_VLE_SDAREL_HA16D:
4104 case R_PPC_SDAREL16:
4105 if (htab->sdata[0].sym == NULL
4106 && !create_sdata_sym (info, &htab->sdata[0]))
4109 if (htab->sdata[1].sym == NULL
4110 && !create_sdata_sym (info, &htab->sdata[1]))
4115 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4116 h->non_got_ref = TRUE;
4120 case R_PPC_VLE_REL8:
4121 case R_PPC_VLE_REL15:
4122 case R_PPC_VLE_REL24:
4123 case R_PPC_VLE_LO16A:
4124 case R_PPC_VLE_LO16D:
4125 case R_PPC_VLE_HI16A:
4126 case R_PPC_VLE_HI16D:
4127 case R_PPC_VLE_HA16A:
4128 case R_PPC_VLE_HA16D:
4131 case R_PPC_EMB_SDA2REL:
4134 bad_shared_reloc (abfd, r_type);
4137 if (htab->sdata[1].sym == NULL
4138 && !create_sdata_sym (info, &htab->sdata[1]))
4142 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4143 h->non_got_ref = TRUE;
4147 case R_PPC_VLE_SDA21_LO:
4148 case R_PPC_VLE_SDA21:
4149 case R_PPC_EMB_SDA21:
4150 case R_PPC_EMB_RELSDA:
4153 bad_shared_reloc (abfd, r_type);
4156 if (htab->sdata[0].sym == NULL
4157 && !create_sdata_sym (info, &htab->sdata[0]))
4159 if (htab->sdata[1].sym == NULL
4160 && !create_sdata_sym (info, &htab->sdata[1]))
4164 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4165 h->non_got_ref = TRUE;
4169 case R_PPC_EMB_NADDR32:
4170 case R_PPC_EMB_NADDR16:
4171 case R_PPC_EMB_NADDR16_LO:
4172 case R_PPC_EMB_NADDR16_HI:
4173 case R_PPC_EMB_NADDR16_HA:
4176 bad_shared_reloc (abfd, r_type);
4180 h->non_got_ref = TRUE;
4183 case R_PPC_PLTREL24:
4188 case R_PPC_PLTREL32:
4189 case R_PPC_PLT16_LO:
4190 case R_PPC_PLT16_HI:
4191 case R_PPC_PLT16_HA:
4193 fprintf (stderr, "Reloc requires a PLT entry\n");
4195 /* This symbol requires a procedure linkage table entry. We
4196 actually build the entry in finish_dynamic_symbol,
4197 because this might be a case of linking PIC code without
4198 linking in any dynamic objects, in which case we don't
4199 need to generate a procedure linkage table after all. */
4203 /* It does not make sense to have a procedure linkage
4204 table entry for a local symbol. */
4205 info->callbacks->einfo (_("%P: %H: %s reloc against local symbol\n"),
4206 abfd, sec, rel->r_offset,
4207 ppc_elf_howto_table[r_type]->name);
4208 bfd_set_error (bfd_error_bad_value);
4215 if (r_type == R_PPC_PLTREL24)
4217 ppc_elf_tdata (abfd)->makes_plt_call = 1;
4219 addend = rel->r_addend;
4222 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
4227 /* The following relocations don't need to propagate the
4228 relocation if linking a shared object since they are
4229 section relative. */
4231 case R_PPC_SECTOFF_LO:
4232 case R_PPC_SECTOFF_HI:
4233 case R_PPC_SECTOFF_HA:
4234 case R_PPC_DTPREL16:
4235 case R_PPC_DTPREL16_LO:
4236 case R_PPC_DTPREL16_HI:
4237 case R_PPC_DTPREL16_HA:
4242 case R_PPC_REL16_LO:
4243 case R_PPC_REL16_HI:
4244 case R_PPC_REL16_HA:
4245 ppc_elf_tdata (abfd)->has_rel16 = 1;
4248 /* These are just markers. */
4250 case R_PPC_EMB_MRKREF:
4254 case R_PPC_RELAX_PLT:
4255 case R_PPC_RELAX_PLTREL24:
4258 /* These should only appear in dynamic objects. */
4260 case R_PPC_GLOB_DAT:
4261 case R_PPC_JMP_SLOT:
4262 case R_PPC_RELATIVE:
4263 case R_PPC_IRELATIVE:
4266 /* These aren't handled yet. We'll report an error later. */
4268 case R_PPC_EMB_RELSEC16:
4269 case R_PPC_EMB_RELST_LO:
4270 case R_PPC_EMB_RELST_HI:
4271 case R_PPC_EMB_RELST_HA:
4272 case R_PPC_EMB_BIT_FLD:
4275 /* This refers only to functions defined in the shared library. */
4276 case R_PPC_LOCAL24PC:
4277 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
4279 htab->plt_type = PLT_OLD;
4280 htab->old_bfd = abfd;
4284 /* This relocation describes the C++ object vtable hierarchy.
4285 Reconstruct it for later use during GC. */
4286 case R_PPC_GNU_VTINHERIT:
4287 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4291 /* This relocation describes which C++ vtable entries are actually
4292 used. Record for later use during GC. */
4293 case R_PPC_GNU_VTENTRY:
4294 BFD_ASSERT (h != NULL);
4296 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4300 /* We shouldn't really be seeing these. */
4303 case R_PPC_TPREL16_LO:
4304 case R_PPC_TPREL16_HI:
4305 case R_PPC_TPREL16_HA:
4306 if (!info->executable)
4307 info->flags |= DF_STATIC_TLS;
4311 case R_PPC_DTPMOD32:
4312 case R_PPC_DTPREL32:
4318 && (sec->flags & SEC_CODE) != 0
4320 && htab->plt_type == PLT_UNSET)
4322 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4323 the start of a function, which assembles to a REL32
4324 reference to .got2. If we detect one of these, then
4325 force the old PLT layout because the linker cannot
4326 reliably deduce the GOT pointer value needed for
4329 Elf_Internal_Sym *isym;
4331 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4336 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4339 htab->plt_type = PLT_OLD;
4340 htab->old_bfd = abfd;
4343 if (h == NULL || h == htab->elf.hgot)
4349 case R_PPC_ADDR16_LO:
4350 case R_PPC_ADDR16_HI:
4351 case R_PPC_ADDR16_HA:
4354 if (h != NULL && !info->shared)
4356 /* We may need a plt entry if the symbol turns out to be
4357 a function defined in a dynamic object. */
4358 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4361 /* We may need a copy reloc too. */
4363 h->pointer_equality_needed = 1;
4369 case R_PPC_REL14_BRTAKEN:
4370 case R_PPC_REL14_BRNTAKEN:
4373 if (h == htab->elf.hgot)
4375 if (htab->plt_type == PLT_UNSET)
4377 htab->plt_type = PLT_OLD;
4378 htab->old_bfd = abfd;
4386 case R_PPC_ADDR14_BRTAKEN:
4387 case R_PPC_ADDR14_BRNTAKEN:
4388 if (h != NULL && !info->shared)
4390 /* We may need a plt entry if the symbol turns out to be
4391 a function defined in a dynamic object. */
4393 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4399 /* If we are creating a shared library, and this is a reloc
4400 against a global symbol, or a non PC relative reloc
4401 against a local symbol, then we need to copy the reloc
4402 into the shared library. However, if we are linking with
4403 -Bsymbolic, we do not need to copy a reloc against a
4404 global symbol which is defined in an object we are
4405 including in the link (i.e., DEF_REGULAR is set). At
4406 this point we have not seen all the input files, so it is
4407 possible that DEF_REGULAR is not set now but will be set
4408 later (it is never cleared). In case of a weak definition,
4409 DEF_REGULAR may be cleared later by a strong definition in
4410 a shared library. We account for that possibility below by
4411 storing information in the dyn_relocs field of the hash
4412 table entry. A similar situation occurs when creating
4413 shared libraries and symbol visibility changes render the
4416 If on the other hand, we are creating an executable, we
4417 may need to keep relocations for symbols satisfied by a
4418 dynamic library if we manage to avoid copy relocs for the
4421 && (must_be_dyn_reloc (info, r_type)
4423 && (! info->symbolic
4424 || h->root.type == bfd_link_hash_defweak
4425 || !h->def_regular))))
4426 || (ELIMINATE_COPY_RELOCS
4429 && (h->root.type == bfd_link_hash_defweak
4430 || !h->def_regular)))
4434 "ppc_elf_check_relocs needs to "
4435 "create relocation for %s\n",
4436 (h && h->root.root.string
4437 ? h->root.root.string : "<unknown>"));
4441 if (htab->elf.dynobj == NULL)
4442 htab->elf.dynobj = abfd;
4444 sreloc = _bfd_elf_make_dynamic_reloc_section
4445 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4451 /* If this is a global symbol, we count the number of
4452 relocations we need for this symbol. */
4455 struct elf_dyn_relocs *p;
4456 struct elf_dyn_relocs **rel_head;
4458 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
4460 if (p == NULL || p->sec != sec)
4462 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4465 p->next = *rel_head;
4472 if (!must_be_dyn_reloc (info, r_type))
4477 /* Track dynamic relocs needed for local syms too.
4478 We really need local syms available to do this
4480 struct ppc_dyn_relocs *p;
4481 struct ppc_dyn_relocs **rel_head;
4482 bfd_boolean is_ifunc;
4485 Elf_Internal_Sym *isym;
4487 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4492 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4496 vpp = &elf_section_data (s)->local_dynrel;
4497 rel_head = (struct ppc_dyn_relocs **) vpp;
4498 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
4500 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
4502 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
4504 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4507 p->next = *rel_head;
4510 p->ifunc = is_ifunc;
4525 /* Merge object attributes from IBFD into OBFD. Raise an error if
4526 there are conflicting attributes. */
4528 ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
4530 obj_attribute *in_attr, *in_attrs;
4531 obj_attribute *out_attr, *out_attrs;
4533 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4535 /* This is the first object. Copy the attributes. */
4536 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4538 /* Use the Tag_null value to indicate the attributes have been
4540 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4545 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4546 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4548 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
4549 non-conflicting ones. */
4550 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4551 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
4552 if (in_attr->i != out_attr->i)
4555 if (out_attr->i == 0)
4556 out_attr->i = in_attr->i;
4557 else if (in_attr->i == 0)
4559 else if (out_attr->i == 1 && in_attr->i == 2)
4561 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
4562 else if (out_attr->i == 1 && in_attr->i == 3)
4564 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4566 else if (out_attr->i == 3 && in_attr->i == 1)
4568 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4570 else if (out_attr->i == 3 && in_attr->i == 2)
4572 (_("Warning: %B uses soft float, %B uses single-precision hard float"),
4574 else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3))
4576 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
4577 else if (in_attr->i > 3)
4579 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
4583 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
4587 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4588 merge non-conflicting ones. */
4589 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4590 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4591 if (in_attr->i != out_attr->i)
4593 const char *in_abi = NULL, *out_abi = NULL;
4597 case 1: in_abi = "generic"; break;
4598 case 2: in_abi = "AltiVec"; break;
4599 case 3: in_abi = "SPE"; break;
4602 switch (out_attr->i)
4604 case 1: out_abi = "generic"; break;
4605 case 2: out_abi = "AltiVec"; break;
4606 case 3: out_abi = "SPE"; break;
4610 if (out_attr->i == 0)
4611 out_attr->i = in_attr->i;
4612 else if (in_attr->i == 0)
4614 /* For now, allow generic to transition to AltiVec or SPE
4615 without a warning. If GCC marked files with their stack
4616 alignment and used don't-care markings for files which are
4617 not affected by the vector ABI, we could warn about this
4619 else if (out_attr->i == 1)
4620 out_attr->i = in_attr->i;
4621 else if (in_attr->i == 1)
4623 else if (in_abi == NULL)
4625 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
4627 else if (out_abi == NULL)
4629 (_("Warning: %B uses unknown vector ABI %d"), obfd,
4633 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
4634 ibfd, obfd, in_abi, out_abi);
4637 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4638 and merge non-conflicting ones. */
4639 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4640 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4641 if (in_attr->i != out_attr->i)
4644 if (out_attr->i == 0)
4645 out_attr->i = in_attr->i;
4646 else if (in_attr->i == 0)
4648 else if (out_attr->i == 1 && in_attr->i == 2)
4650 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd);
4651 else if (out_attr->i == 2 && in_attr->i == 1)
4653 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd);
4654 else if (in_attr->i > 2)
4656 (_("Warning: %B uses unknown small structure return convention %d"), ibfd,
4660 (_("Warning: %B uses unknown small structure return convention %d"), obfd,
4664 /* Merge Tag_compatibility attributes and any common GNU ones. */
4665 _bfd_elf_merge_object_attributes (ibfd, obfd);
4670 /* Merge backend specific data from an object file to the output
4671 object file when linking. */
4674 ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4680 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
4683 /* Check if we have the same endianness. */
4684 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
4687 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
4690 new_flags = elf_elfheader (ibfd)->e_flags;
4691 old_flags = elf_elfheader (obfd)->e_flags;
4692 if (!elf_flags_init (obfd))
4694 /* First call, no flags set. */
4695 elf_flags_init (obfd) = TRUE;
4696 elf_elfheader (obfd)->e_flags = new_flags;
4699 /* Compatible flags are ok. */
4700 else if (new_flags == old_flags)
4703 /* Incompatible flags. */
4706 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4707 to be linked with either. */
4709 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4710 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4713 (*_bfd_error_handler)
4714 (_("%B: compiled with -mrelocatable and linked with "
4715 "modules compiled normally"), ibfd);
4717 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4718 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4721 (*_bfd_error_handler)
4722 (_("%B: compiled normally and linked with "
4723 "modules compiled with -mrelocatable"), ibfd);
4726 /* The output is -mrelocatable-lib iff both the input files are. */
4727 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4728 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4730 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4731 but each input file is either -mrelocatable or -mrelocatable-lib. */
4732 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4733 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4734 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4735 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4737 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4738 any module uses it. */
4739 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4741 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4742 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4744 /* Warn about any other mismatches. */
4745 if (new_flags != old_flags)
4748 (*_bfd_error_handler)
4749 (_("%B: uses different e_flags (0x%lx) fields "
4750 "than previous modules (0x%lx)"),
4751 ibfd, (long) new_flags, (long) old_flags);
4756 bfd_set_error (bfd_error_bad_value);
4765 ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *contents,
4766 bfd_vma offset, bfd_vma relocation,
4767 split16_format_type split16_format)
4770 bfd_vma insn, top5, bottom11;
4772 insn = bfd_get_32 (output_bfd, contents + offset);
4773 top5 = relocation >> 11;
4774 top5 = top5 << (split16_format == split16a_type ? 20 : 16);
4775 bottom11 = relocation & 0x7ff;
4778 bfd_put_32 (output_bfd, insn, contents + offset);
4782 /* Choose which PLT scheme to use, and set .plt flags appropriately.
4783 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4785 ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
4786 struct bfd_link_info *info,
4787 enum ppc_elf_plt_type plt_style,
4790 struct ppc_elf_link_hash_table *htab;
4793 htab = ppc_elf_hash_table (info);
4795 htab->emit_stub_syms = emit_stub_syms;
4797 if (htab->plt_type == PLT_UNSET)
4799 struct elf_link_hash_entry *h;
4801 if (plt_style == PLT_OLD)
4802 htab->plt_type = PLT_OLD;
4803 else if (info->shared
4804 && htab->elf.dynamic_sections_created
4805 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
4806 FALSE, FALSE, TRUE)) != NULL
4807 && (h->type == STT_FUNC
4810 && !(SYMBOL_CALLS_LOCAL (info, h)
4811 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4812 && h->root.type == bfd_link_hash_undefweak)))
4814 /* Profiling of shared libs (and pies) is not supported with
4815 secure plt, because ppc32 does profiling before a
4816 function prologue and a secure plt pic call stubs needs
4817 r30 to be set up. */
4818 htab->plt_type = PLT_OLD;
4823 enum ppc_elf_plt_type plt_type = plt_style;
4825 /* Look through the reloc flags left by ppc_elf_check_relocs.
4826 Use the old style bss plt if a file makes plt calls
4827 without using the new relocs, and if ld isn't given
4828 --secure-plt and we never see REL16 relocs. */
4829 if (plt_type == PLT_UNSET)
4831 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
4832 if (is_ppc_elf (ibfd))
4834 if (ppc_elf_tdata (ibfd)->has_rel16)
4836 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
4839 htab->old_bfd = ibfd;
4843 htab->plt_type = plt_type;
4846 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
4848 if (htab->old_bfd != NULL)
4849 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
4852 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
4855 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
4857 if (htab->plt_type == PLT_NEW)
4859 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
4860 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4862 /* The new PLT is a loaded section. */
4863 if (htab->plt != NULL
4864 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
4867 /* The new GOT is not executable. */
4868 if (htab->got != NULL
4869 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
4874 /* Stop an unused .glink section from affecting .text alignment. */
4875 if (htab->glink != NULL
4876 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
4879 return htab->plt_type == PLT_NEW;
4882 /* Return the section that should be marked against GC for a given
4886 ppc_elf_gc_mark_hook (asection *sec,
4887 struct bfd_link_info *info,
4888 Elf_Internal_Rela *rel,
4889 struct elf_link_hash_entry *h,
4890 Elf_Internal_Sym *sym)
4893 switch (ELF32_R_TYPE (rel->r_info))
4895 case R_PPC_GNU_VTINHERIT:
4896 case R_PPC_GNU_VTENTRY:
4900 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4903 /* Update the got, plt and dynamic reloc reference counts for the
4904 section being removed. */
4907 ppc_elf_gc_sweep_hook (bfd *abfd,
4908 struct bfd_link_info *info,
4910 const Elf_Internal_Rela *relocs)
4912 struct ppc_elf_link_hash_table *htab;
4913 Elf_Internal_Shdr *symtab_hdr;
4914 struct elf_link_hash_entry **sym_hashes;
4915 bfd_signed_vma *local_got_refcounts;
4916 const Elf_Internal_Rela *rel, *relend;
4919 if (info->relocatable)
4922 if ((sec->flags & SEC_ALLOC) == 0)
4925 elf_section_data (sec)->local_dynrel = NULL;
4927 htab = ppc_elf_hash_table (info);
4928 symtab_hdr = &elf_symtab_hdr (abfd);
4929 sym_hashes = elf_sym_hashes (abfd);
4930 local_got_refcounts = elf_local_got_refcounts (abfd);
4931 got2 = bfd_get_section_by_name (abfd, ".got2");
4933 relend = relocs + sec->reloc_count;
4934 for (rel = relocs; rel < relend; rel++)
4936 unsigned long r_symndx;
4937 enum elf_ppc_reloc_type r_type;
4938 struct elf_link_hash_entry *h = NULL;
4940 r_symndx = ELF32_R_SYM (rel->r_info);
4941 if (r_symndx >= symtab_hdr->sh_info)
4943 struct elf_dyn_relocs **pp, *p;
4944 struct ppc_elf_link_hash_entry *eh;
4946 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4947 while (h->root.type == bfd_link_hash_indirect
4948 || h->root.type == bfd_link_hash_warning)
4949 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4950 eh = (struct ppc_elf_link_hash_entry *) h;
4952 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4955 /* Everything must go for SEC. */
4961 r_type = ELF32_R_TYPE (rel->r_info);
4962 if (!htab->is_vxworks
4964 && local_got_refcounts != NULL
4966 || is_branch_reloc (r_type)))
4968 struct plt_entry **local_plt = (struct plt_entry **)
4969 (local_got_refcounts + symtab_hdr->sh_info);
4970 char *local_got_tls_masks = (char *)
4971 (local_plt + symtab_hdr->sh_info);
4972 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
4974 struct plt_entry **ifunc = local_plt + r_symndx;
4976 struct plt_entry *ent;
4978 if (r_type == R_PPC_PLTREL24 && info->shared)
4979 addend = rel->r_addend;
4980 ent = find_plt_ent (ifunc, got2, addend);
4981 if (ent->plt.refcount > 0)
4982 ent->plt.refcount -= 1;
4989 case R_PPC_GOT_TLSLD16:
4990 case R_PPC_GOT_TLSLD16_LO:
4991 case R_PPC_GOT_TLSLD16_HI:
4992 case R_PPC_GOT_TLSLD16_HA:
4993 case R_PPC_GOT_TLSGD16:
4994 case R_PPC_GOT_TLSGD16_LO:
4995 case R_PPC_GOT_TLSGD16_HI:
4996 case R_PPC_GOT_TLSGD16_HA:
4997 case R_PPC_GOT_TPREL16:
4998 case R_PPC_GOT_TPREL16_LO:
4999 case R_PPC_GOT_TPREL16_HI:
5000 case R_PPC_GOT_TPREL16_HA:
5001 case R_PPC_GOT_DTPREL16:
5002 case R_PPC_GOT_DTPREL16_LO:
5003 case R_PPC_GOT_DTPREL16_HI:
5004 case R_PPC_GOT_DTPREL16_HA:
5006 case R_PPC_GOT16_LO:
5007 case R_PPC_GOT16_HI:
5008 case R_PPC_GOT16_HA:
5011 if (h->got.refcount > 0)
5015 struct plt_entry *ent;
5017 ent = find_plt_ent (&h->plt.plist, NULL, 0);
5018 if (ent != NULL && ent->plt.refcount > 0)
5019 ent->plt.refcount -= 1;
5022 else if (local_got_refcounts != NULL)
5024 if (local_got_refcounts[r_symndx] > 0)
5025 local_got_refcounts[r_symndx]--;
5031 case R_PPC_REL14_BRTAKEN:
5032 case R_PPC_REL14_BRNTAKEN:
5034 if (h == NULL || h == htab->elf.hgot)
5041 case R_PPC_ADDR16_LO:
5042 case R_PPC_ADDR16_HI:
5043 case R_PPC_ADDR16_HA:
5045 case R_PPC_ADDR14_BRTAKEN:
5046 case R_PPC_ADDR14_BRNTAKEN:
5053 case R_PPC_PLTREL24:
5054 case R_PPC_PLTREL32:
5055 case R_PPC_PLT16_LO:
5056 case R_PPC_PLT16_HI:
5057 case R_PPC_PLT16_HA:
5061 struct plt_entry *ent;
5063 if (r_type == R_PPC_PLTREL24 && info->shared)
5064 addend = rel->r_addend;
5065 ent = find_plt_ent (&h->plt.plist, got2, addend);
5066 if (ent != NULL && ent->plt.refcount > 0)
5067 ent->plt.refcount -= 1;
5078 /* Set plt output section type, htab->tls_get_addr, and call the
5079 generic ELF tls_setup function. */
5082 ppc_elf_tls_setup (bfd *obfd,
5083 struct bfd_link_info *info,
5084 int no_tls_get_addr_opt)
5086 struct ppc_elf_link_hash_table *htab;
5088 htab = ppc_elf_hash_table (info);
5089 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5090 FALSE, FALSE, TRUE);
5091 if (!no_tls_get_addr_opt)
5093 struct elf_link_hash_entry *opt, *tga;
5094 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5095 FALSE, FALSE, TRUE);
5097 && (opt->root.type == bfd_link_hash_defined
5098 || opt->root.type == bfd_link_hash_defweak))
5100 /* If glibc supports an optimized __tls_get_addr call stub,
5101 signalled by the presence of __tls_get_addr_opt, and we'll
5102 be calling __tls_get_addr via a plt call stub, then
5103 make __tls_get_addr point to __tls_get_addr_opt. */
5104 tga = htab->tls_get_addr;
5105 if (htab->elf.dynamic_sections_created
5107 && (tga->type == STT_FUNC
5109 && !(SYMBOL_CALLS_LOCAL (info, tga)
5110 || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
5111 && tga->root.type == bfd_link_hash_undefweak)))
5113 struct plt_entry *ent;
5114 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5115 if (ent->plt.refcount > 0)
5119 tga->root.type = bfd_link_hash_indirect;
5120 tga->root.u.i.link = &opt->root;
5121 ppc_elf_copy_indirect_symbol (info, opt, tga);
5122 if (opt->dynindx != -1)
5124 /* Use __tls_get_addr_opt in dynamic relocations. */
5126 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5128 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5131 htab->tls_get_addr = opt;
5136 no_tls_get_addr_opt = TRUE;
5138 htab->no_tls_get_addr_opt = no_tls_get_addr_opt;
5139 if (htab->plt_type == PLT_NEW
5140 && htab->plt != NULL
5141 && htab->plt->output_section != NULL)
5143 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
5144 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
5147 return _bfd_elf_tls_setup (obfd, info);
5150 /* Return TRUE iff REL is a branch reloc with a global symbol matching
5154 branch_reloc_hash_match (const bfd *ibfd,
5155 const Elf_Internal_Rela *rel,
5156 const struct elf_link_hash_entry *hash)
5158 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5159 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5160 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5162 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
5164 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5165 struct elf_link_hash_entry *h;
5167 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5168 while (h->root.type == bfd_link_hash_indirect
5169 || h->root.type == bfd_link_hash_warning)
5170 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5177 /* Run through all the TLS relocs looking for optimization
5181 ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5182 struct bfd_link_info *info)
5186 struct ppc_elf_link_hash_table *htab;
5189 if (info->relocatable || !info->executable)
5192 htab = ppc_elf_hash_table (info);
5196 /* Make two passes through the relocs. First time check that tls
5197 relocs involved in setting up a tls_get_addr call are indeed
5198 followed by such a call. If they are not, don't do any tls
5199 optimization. On the second pass twiddle tls_mask flags to
5200 notify relocate_section that optimization can be done, and
5201 adjust got and plt refcounts. */
5202 for (pass = 0; pass < 2; ++pass)
5203 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5205 Elf_Internal_Sym *locsyms = NULL;
5206 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5207 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
5209 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5210 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5212 Elf_Internal_Rela *relstart, *rel, *relend;
5213 int expecting_tls_get_addr = 0;
5215 /* Read the relocations. */
5216 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5218 if (relstart == NULL)
5221 relend = relstart + sec->reloc_count;
5222 for (rel = relstart; rel < relend; rel++)
5224 enum elf_ppc_reloc_type r_type;
5225 unsigned long r_symndx;
5226 struct elf_link_hash_entry *h = NULL;
5228 char tls_set, tls_clear;
5229 bfd_boolean is_local;
5230 bfd_signed_vma *got_count;
5232 r_symndx = ELF32_R_SYM (rel->r_info);
5233 if (r_symndx >= symtab_hdr->sh_info)
5235 struct elf_link_hash_entry **sym_hashes;
5237 sym_hashes = elf_sym_hashes (ibfd);
5238 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5239 while (h->root.type == bfd_link_hash_indirect
5240 || h->root.type == bfd_link_hash_warning)
5241 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5249 r_type = ELF32_R_TYPE (rel->r_info);
5250 /* If this section has old-style __tls_get_addr calls
5251 without marker relocs, then check that each
5252 __tls_get_addr call reloc is preceded by a reloc
5253 that conceivably belongs to the __tls_get_addr arg
5254 setup insn. If we don't find matching arg setup
5255 relocs, don't do any tls optimization. */
5257 && sec->has_tls_get_addr_call
5259 && h == htab->tls_get_addr
5260 && !expecting_tls_get_addr
5261 && is_branch_reloc (r_type))
5263 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
5264 "TLS optimization disabled\n",
5265 ibfd, sec, rel->r_offset);
5266 if (elf_section_data (sec)->relocs != relstart)
5271 expecting_tls_get_addr = 0;
5274 case R_PPC_GOT_TLSLD16:
5275 case R_PPC_GOT_TLSLD16_LO:
5276 expecting_tls_get_addr = 1;
5279 case R_PPC_GOT_TLSLD16_HI:
5280 case R_PPC_GOT_TLSLD16_HA:
5281 /* These relocs should never be against a symbol
5282 defined in a shared lib. Leave them alone if
5283 that turns out to be the case. */
5292 case R_PPC_GOT_TLSGD16:
5293 case R_PPC_GOT_TLSGD16_LO:
5294 expecting_tls_get_addr = 1;
5297 case R_PPC_GOT_TLSGD16_HI:
5298 case R_PPC_GOT_TLSGD16_HA:
5304 tls_set = TLS_TLS | TLS_TPRELGD;
5308 case R_PPC_GOT_TPREL16:
5309 case R_PPC_GOT_TPREL16_LO:
5310 case R_PPC_GOT_TPREL16_HI:
5311 case R_PPC_GOT_TPREL16_HA:
5316 tls_clear = TLS_TPREL;
5324 expecting_tls_get_addr = 2;
5335 if (!expecting_tls_get_addr
5336 || (expecting_tls_get_addr == 1
5337 && !sec->has_tls_get_addr_call))
5340 if (rel + 1 < relend
5341 && branch_reloc_hash_match (ibfd, rel + 1,
5342 htab->tls_get_addr))
5345 /* Uh oh, we didn't find the expected call. We
5346 could just mark this symbol to exclude it
5347 from tls optimization but it's safer to skip
5348 the entire optimization. */
5349 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
5350 "TLS optimization disabled\n"),
5351 ibfd, sec, rel->r_offset);
5352 if (elf_section_data (sec)->relocs != relstart)
5357 if (expecting_tls_get_addr)
5359 struct plt_entry *ent;
5363 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5364 addend = rel[1].r_addend;
5365 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5367 if (ent != NULL && ent->plt.refcount > 0)
5368 ent->plt.refcount -= 1;
5370 if (expecting_tls_get_addr == 2)
5376 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5377 got_count = &h->got.refcount;
5381 bfd_signed_vma *lgot_refs;
5382 struct plt_entry **local_plt;
5385 if (locsyms == NULL)
5387 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5388 if (locsyms == NULL)
5389 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5390 symtab_hdr->sh_info,
5391 0, NULL, NULL, NULL);
5392 if (locsyms == NULL)
5394 if (elf_section_data (sec)->relocs != relstart)
5399 lgot_refs = elf_local_got_refcounts (ibfd);
5400 if (lgot_refs == NULL)
5402 local_plt = (struct plt_entry **)
5403 (lgot_refs + symtab_hdr->sh_info);
5404 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
5405 tls_mask = &lgot_masks[r_symndx];
5406 got_count = &lgot_refs[r_symndx];
5411 /* We managed to get rid of a got entry. */
5416 *tls_mask |= tls_set;
5417 *tls_mask &= ~tls_clear;
5420 if (elf_section_data (sec)->relocs != relstart)
5425 && (symtab_hdr->contents != (unsigned char *) locsyms))
5427 if (!info->keep_memory)
5430 symtab_hdr->contents = (unsigned char *) locsyms;
5436 /* Return true if we have dynamic relocs that apply to read-only sections. */
5439 readonly_dynrelocs (struct elf_link_hash_entry *h)
5441 struct elf_dyn_relocs *p;
5443 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5445 asection *s = p->sec->output_section;
5448 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5449 == (SEC_READONLY | SEC_ALLOC)))
5455 /* Adjust a symbol defined by a dynamic object and referenced by a
5456 regular object. The current definition is in some section of the
5457 dynamic object, but we're not including those sections. We have to
5458 change the definition to something the rest of the link can
5462 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5463 struct elf_link_hash_entry *h)
5465 struct ppc_elf_link_hash_table *htab;
5469 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5470 h->root.root.string);
5473 /* Make sure we know what is going on here. */
5474 htab = ppc_elf_hash_table (info);
5475 BFD_ASSERT (htab->elf.dynobj != NULL
5477 || h->type == STT_GNU_IFUNC
5478 || h->u.weakdef != NULL
5481 && !h->def_regular)));
5483 /* Deal with function syms. */
5484 if (h->type == STT_FUNC
5485 || h->type == STT_GNU_IFUNC
5488 /* Clear procedure linkage table information for any symbol that
5489 won't need a .plt entry. */
5490 struct plt_entry *ent;
5491 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5492 if (ent->plt.refcount > 0)
5495 || (h->type != STT_GNU_IFUNC
5496 && (SYMBOL_CALLS_LOCAL (info, h)
5497 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5498 && h->root.type == bfd_link_hash_undefweak))))
5500 /* A PLT entry is not required/allowed when:
5502 1. We are not using ld.so; because then the PLT entry
5503 can't be set up, so we can't use one. In this case,
5504 ppc_elf_adjust_dynamic_symbol won't even be called.
5506 2. GC has rendered the entry unused.
5508 3. We know for certain that a call to this symbol
5509 will go to this object, or will remain undefined. */
5510 h->plt.plist = NULL;
5515 /* After adjust_dynamic_symbol, non_got_ref set in the
5516 non-shared case means that we have allocated space in
5517 .dynbss for the symbol and thus dyn_relocs for this
5518 symbol should be discarded.
5519 If we get here we know we are making a PLT entry for this
5520 symbol, and in an executable we'd normally resolve
5521 relocations against this symbol to the PLT entry. Allow
5522 dynamic relocs if the reference is weak, and the dynamic
5523 relocs will not cause text relocation. */
5524 if (!h->ref_regular_nonweak
5526 && h->type != STT_GNU_IFUNC
5527 && !htab->is_vxworks
5528 && !ppc_elf_hash_entry (h)->has_sda_refs
5529 && !readonly_dynrelocs (h))
5535 h->plt.plist = NULL;
5537 /* If this is a weak symbol, and there is a real definition, the
5538 processor independent code will have arranged for us to see the
5539 real definition first, and we can just use the same value. */
5540 if (h->u.weakdef != NULL)
5542 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5543 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5544 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5545 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5546 if (ELIMINATE_COPY_RELOCS)
5547 h->non_got_ref = h->u.weakdef->non_got_ref;
5551 /* This is a reference to a symbol defined by a dynamic object which
5552 is not a function. */
5554 /* If we are creating a shared library, we must presume that the
5555 only references to the symbol are via the global offset table.
5556 For such cases we need not do anything here; the relocations will
5557 be handled correctly by relocate_section. */
5561 /* If there are no references to this symbol that do not use the
5562 GOT, we don't need to generate a copy reloc. */
5563 if (!h->non_got_ref)
5566 /* If we didn't find any dynamic relocs in read-only sections, then
5567 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5568 We can't do this if there are any small data relocations. This
5569 doesn't work on VxWorks, where we can not have dynamic
5570 relocations (other than copy and jump slot relocations) in an
5572 if (ELIMINATE_COPY_RELOCS
5573 && !ppc_elf_hash_entry (h)->has_sda_refs
5574 && !htab->is_vxworks
5576 && !readonly_dynrelocs (h))
5582 /* We must allocate the symbol in our .dynbss section, which will
5583 become part of the .bss section of the executable. There will be
5584 an entry for this symbol in the .dynsym section. The dynamic
5585 object will contain position independent code, so all references
5586 from the dynamic object to this symbol will go through the global
5587 offset table. The dynamic linker will use the .dynsym entry to
5588 determine the address it must put in the global offset table, so
5589 both the dynamic object and the regular object will refer to the
5590 same memory location for the variable.
5592 Of course, if the symbol is referenced using SDAREL relocs, we
5593 must instead allocate it in .sbss. */
5595 if (ppc_elf_hash_entry (h)->has_sda_refs)
5599 BFD_ASSERT (s != NULL);
5601 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5602 copy the initial value out of the dynamic object and into the
5603 runtime process image. We need to remember the offset into the
5604 .rela.bss section we are going to use. */
5605 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
5609 if (ppc_elf_hash_entry (h)->has_sda_refs)
5610 srel = htab->relsbss;
5612 srel = htab->relbss;
5613 BFD_ASSERT (srel != NULL);
5614 srel->size += sizeof (Elf32_External_Rela);
5618 return _bfd_elf_adjust_dynamic_copy (h, s);
5621 /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5622 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5623 specifying the addend on the plt relocation. For -fpic code, the sym
5624 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5625 xxxxxxxx.got2.plt_pic32.<callee>. */
5628 add_stub_sym (struct plt_entry *ent,
5629 struct elf_link_hash_entry *h,
5630 struct bfd_link_info *info)
5632 struct elf_link_hash_entry *sh;
5633 size_t len1, len2, len3;
5636 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5639 stub = ".plt_pic32.";
5641 stub = ".plt_call32.";
5643 len1 = strlen (h->root.root.string);
5644 len2 = strlen (stub);
5647 len3 = strlen (ent->sec->name);
5648 name = bfd_malloc (len1 + len2 + len3 + 9);
5651 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5653 memcpy (name + 8, ent->sec->name, len3);
5654 memcpy (name + 8 + len3, stub, len2);
5655 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
5656 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5659 if (sh->root.type == bfd_link_hash_new)
5661 sh->root.type = bfd_link_hash_defined;
5662 sh->root.u.def.section = htab->glink;
5663 sh->root.u.def.value = ent->glink_offset;
5664 sh->ref_regular = 1;
5665 sh->def_regular = 1;
5666 sh->ref_regular_nonweak = 1;
5667 sh->forced_local = 1;
5673 /* Allocate NEED contiguous space in .got, and return the offset.
5674 Handles allocation of the got header when crossing 32k. */
5677 allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5680 unsigned int max_before_header;
5682 if (htab->plt_type == PLT_VXWORKS)
5684 where = htab->got->size;
5685 htab->got->size += need;
5689 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5690 if (need <= htab->got_gap)
5692 where = max_before_header - htab->got_gap;
5693 htab->got_gap -= need;
5697 if (htab->got->size + need > max_before_header
5698 && htab->got->size <= max_before_header)
5700 htab->got_gap = max_before_header - htab->got->size;
5701 htab->got->size = max_before_header + htab->got_header_size;
5703 where = htab->got->size;
5704 htab->got->size += need;
5710 /* Allocate space in associated reloc sections for dynamic relocs. */
5713 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5715 struct bfd_link_info *info = inf;
5716 struct ppc_elf_link_hash_entry *eh;
5717 struct ppc_elf_link_hash_table *htab;
5718 struct elf_dyn_relocs *p;
5720 if (h->root.type == bfd_link_hash_indirect)
5723 htab = ppc_elf_hash_table (info);
5724 if (htab->elf.dynamic_sections_created
5725 || h->type == STT_GNU_IFUNC)
5727 struct plt_entry *ent;
5728 bfd_boolean doneone = FALSE;
5729 bfd_vma plt_offset = 0, glink_offset = 0;
5732 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5733 if (ent->plt.refcount > 0)
5735 /* Make sure this symbol is output as a dynamic symbol. */
5736 if (h->dynindx == -1
5739 && htab->elf.dynamic_sections_created)
5741 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5745 dyn = htab->elf.dynamic_sections_created;
5747 || h->type == STT_GNU_IFUNC
5748 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5750 asection *s = htab->plt;
5751 if (!dyn || h->dynindx == -1)
5754 if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
5758 plt_offset = s->size;
5761 ent->plt.offset = plt_offset;
5764 if (!doneone || info->shared)
5766 glink_offset = s->size;
5767 s->size += GLINK_ENTRY_SIZE;
5768 if (h == htab->tls_get_addr
5769 && !htab->no_tls_get_addr_opt)
5770 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
5777 h->root.u.def.section = s;
5778 h->root.u.def.value = glink_offset;
5780 ent->glink_offset = glink_offset;
5782 if (htab->emit_stub_syms
5783 && !add_stub_sym (ent, h, info))
5790 /* If this is the first .plt entry, make room
5791 for the special first entry. */
5793 s->size += htab->plt_initial_entry_size;
5795 /* The PowerPC PLT is actually composed of two
5796 parts, the first part is 2 words (for a load
5797 and a jump), and then there is a remaining
5798 word available at the end. */
5799 plt_offset = (htab->plt_initial_entry_size
5800 + (htab->plt_slot_size
5802 - htab->plt_initial_entry_size)
5803 / htab->plt_entry_size)));
5805 /* If this symbol is not defined in a regular
5806 file, and we are not generating a shared
5807 library, then set the symbol to this location
5808 in the .plt. This is to avoid text
5809 relocations, and is required to make
5810 function pointers compare as equal between
5811 the normal executable and the shared library. */
5816 h->root.u.def.section = s;
5817 h->root.u.def.value = plt_offset;
5820 /* Make room for this entry. */
5821 s->size += htab->plt_entry_size;
5822 /* After the 8192nd entry, room for two entries
5824 if (htab->plt_type == PLT_OLD
5825 && (s->size - htab->plt_initial_entry_size)
5826 / htab->plt_entry_size
5827 > PLT_NUM_SINGLE_ENTRIES)
5828 s->size += htab->plt_entry_size;
5830 ent->plt.offset = plt_offset;
5833 /* We also need to make an entry in the .rela.plt section. */
5836 if (!htab->elf.dynamic_sections_created
5837 || h->dynindx == -1)
5838 htab->reliplt->size += sizeof (Elf32_External_Rela);
5841 htab->relplt->size += sizeof (Elf32_External_Rela);
5843 if (htab->plt_type == PLT_VXWORKS)
5845 /* Allocate space for the unloaded relocations. */
5847 && htab->elf.dynamic_sections_created)
5850 == (bfd_vma) htab->plt_initial_entry_size)
5852 htab->srelplt2->size
5853 += (sizeof (Elf32_External_Rela)
5854 * VXWORKS_PLTRESOLVE_RELOCS);
5857 htab->srelplt2->size
5858 += (sizeof (Elf32_External_Rela)
5859 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
5862 /* Every PLT entry has an associated GOT entry in
5864 htab->sgotplt->size += 4;
5871 ent->plt.offset = (bfd_vma) -1;
5874 ent->plt.offset = (bfd_vma) -1;
5878 h->plt.plist = NULL;
5884 h->plt.plist = NULL;
5888 eh = (struct ppc_elf_link_hash_entry *) h;
5889 if (eh->elf.got.refcount > 0)
5894 /* Make sure this symbol is output as a dynamic symbol. */
5895 if (eh->elf.dynindx == -1
5896 && !eh->elf.forced_local
5897 && eh->elf.type != STT_GNU_IFUNC
5898 && htab->elf.dynamic_sections_created)
5900 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
5905 if ((eh->tls_mask & TLS_TLS) != 0)
5907 if ((eh->tls_mask & TLS_LD) != 0)
5909 if (!eh->elf.def_dynamic)
5910 /* We'll just use htab->tlsld_got.offset. This should
5911 always be the case. It's a little odd if we have
5912 a local dynamic reloc against a non-local symbol. */
5913 htab->tlsld_got.refcount += 1;
5917 if ((eh->tls_mask & TLS_GD) != 0)
5919 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
5921 if ((eh->tls_mask & TLS_DTPREL) != 0)
5927 eh->elf.got.offset = (bfd_vma) -1;
5930 eh->elf.got.offset = allocate_got (htab, need);
5931 dyn = htab->elf.dynamic_sections_created;
5933 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
5934 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
5935 || eh->elf.root.type != bfd_link_hash_undefweak))
5937 asection *rsec = htab->relgot;
5939 if (eh->elf.type == STT_GNU_IFUNC)
5940 rsec = htab->reliplt;
5941 /* All the entries we allocated need relocs.
5942 Except LD only needs one. */
5943 if ((eh->tls_mask & TLS_LD) != 0
5944 && eh->elf.def_dynamic)
5946 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
5951 eh->elf.got.offset = (bfd_vma) -1;
5953 if (eh->dyn_relocs == NULL
5954 || !htab->elf.dynamic_sections_created)
5957 /* In the shared -Bsymbolic case, discard space allocated for
5958 dynamic pc-relative relocs against symbols which turn out to be
5959 defined in regular objects. For the normal shared case, discard
5960 space for relocs that have become local due to symbol visibility
5965 /* Relocs that use pc_count are those that appear on a call insn,
5966 or certain REL relocs (see must_be_dyn_reloc) that can be
5967 generated via assembly. We want calls to protected symbols to
5968 resolve directly to the function rather than going via the plt.
5969 If people want function pointer comparisons to work as expected
5970 then they should avoid writing weird assembly. */
5971 if (SYMBOL_CALLS_LOCAL (info, h))
5973 struct elf_dyn_relocs **pp;
5975 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5977 p->count -= p->pc_count;
5986 if (htab->is_vxworks)
5988 struct elf_dyn_relocs **pp;
5990 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5992 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
5999 /* Discard relocs on undefined symbols that must be local. */
6000 if (eh->dyn_relocs != NULL
6001 && h->root.type == bfd_link_hash_undefined
6002 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
6003 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
6004 eh->dyn_relocs = NULL;
6006 /* Also discard relocs on undefined weak syms with non-default
6008 if (eh->dyn_relocs != NULL
6009 && h->root.type == bfd_link_hash_undefweak)
6011 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
6012 eh->dyn_relocs = NULL;
6014 /* Make sure undefined weak symbols are output as a dynamic
6016 else if (h->dynindx == -1
6020 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6025 else if (ELIMINATE_COPY_RELOCS)
6027 /* For the non-shared case, discard space for relocs against
6028 symbols which turn out to need copy relocs or are not
6034 /* Make sure this symbol is output as a dynamic symbol.
6035 Undefined weak syms won't yet be marked as dynamic. */
6036 if (h->dynindx == -1
6037 && !h->forced_local)
6039 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6043 /* If that succeeded, we know we'll be keeping all the
6045 if (h->dynindx != -1)
6049 eh->dyn_relocs = NULL;
6054 /* Finally, allocate space. */
6055 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6057 asection *sreloc = elf_section_data (p->sec)->sreloc;
6058 if (eh->elf.type == STT_GNU_IFUNC)
6059 sreloc = htab->reliplt;
6060 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6066 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
6067 read-only sections. */
6070 maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
6072 if (h->root.type == bfd_link_hash_indirect)
6075 if (readonly_dynrelocs (h))
6077 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
6079 /* Not an error, just cut short the traversal. */
6085 static const unsigned char glink_eh_frame_cie[] =
6087 0, 0, 0, 16, /* length. */
6088 0, 0, 0, 0, /* id. */
6089 1, /* CIE version. */
6090 'z', 'R', 0, /* Augmentation string. */
6091 4, /* Code alignment. */
6092 0x7c, /* Data alignment. */
6094 1, /* Augmentation size. */
6095 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6096 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6099 /* Set the sizes of the dynamic sections. */
6102 ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
6103 struct bfd_link_info *info)
6105 struct ppc_elf_link_hash_table *htab;
6111 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
6114 htab = ppc_elf_hash_table (info);
6115 BFD_ASSERT (htab->elf.dynobj != NULL);
6117 if (elf_hash_table (info)->dynamic_sections_created)
6119 /* Set the contents of the .interp section to the interpreter. */
6120 if (info->executable)
6122 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
6123 BFD_ASSERT (s != NULL);
6124 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6125 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6129 if (htab->plt_type == PLT_OLD)
6130 htab->got_header_size = 16;
6131 else if (htab->plt_type == PLT_NEW)
6132 htab->got_header_size = 12;
6134 /* Set up .got offsets for local syms, and space for local dynamic
6136 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6138 bfd_signed_vma *local_got;
6139 bfd_signed_vma *end_local_got;
6140 struct plt_entry **local_plt;
6141 struct plt_entry **end_local_plt;
6143 bfd_size_type locsymcount;
6144 Elf_Internal_Shdr *symtab_hdr;
6146 if (!is_ppc_elf (ibfd))
6149 for (s = ibfd->sections; s != NULL; s = s->next)
6151 struct ppc_dyn_relocs *p;
6153 for (p = ((struct ppc_dyn_relocs *)
6154 elf_section_data (s)->local_dynrel);
6158 if (!bfd_is_abs_section (p->sec)
6159 && bfd_is_abs_section (p->sec->output_section))
6161 /* Input section has been discarded, either because
6162 it is a copy of a linkonce section or due to
6163 linker script /DISCARD/, so we'll be discarding
6166 else if (htab->is_vxworks
6167 && strcmp (p->sec->output_section->name,
6170 /* Relocations in vxworks .tls_vars sections are
6171 handled specially by the loader. */
6173 else if (p->count != 0)
6175 asection *sreloc = elf_section_data (p->sec)->sreloc;
6177 sreloc = htab->reliplt;
6178 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6179 if ((p->sec->output_section->flags
6180 & (SEC_READONLY | SEC_ALLOC))
6181 == (SEC_READONLY | SEC_ALLOC))
6182 info->flags |= DF_TEXTREL;
6187 local_got = elf_local_got_refcounts (ibfd);
6191 symtab_hdr = &elf_symtab_hdr (ibfd);
6192 locsymcount = symtab_hdr->sh_info;
6193 end_local_got = local_got + locsymcount;
6194 local_plt = (struct plt_entry **) end_local_got;
6195 end_local_plt = local_plt + locsymcount;
6196 lgot_masks = (char *) end_local_plt;
6198 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6201 unsigned int need = 0;
6202 if ((*lgot_masks & TLS_TLS) != 0)
6204 if ((*lgot_masks & TLS_GD) != 0)
6206 if ((*lgot_masks & TLS_LD) != 0)
6207 htab->tlsld_got.refcount += 1;
6208 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6210 if ((*lgot_masks & TLS_DTPREL) != 0)
6216 *local_got = (bfd_vma) -1;
6219 *local_got = allocate_got (htab, need);
6222 asection *srel = htab->relgot;
6223 if ((*lgot_masks & PLT_IFUNC) != 0)
6224 srel = htab->reliplt;
6225 srel->size += need * (sizeof (Elf32_External_Rela) / 4);
6230 *local_got = (bfd_vma) -1;
6232 if (htab->is_vxworks)
6235 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6236 for (; local_plt < end_local_plt; ++local_plt)
6238 struct plt_entry *ent;
6239 bfd_boolean doneone = FALSE;
6240 bfd_vma plt_offset = 0, glink_offset = 0;
6242 for (ent = *local_plt; ent != NULL; ent = ent->next)
6243 if (ent->plt.refcount > 0)
6249 plt_offset = s->size;
6252 ent->plt.offset = plt_offset;
6255 if (!doneone || info->shared)
6257 glink_offset = s->size;
6258 s->size += GLINK_ENTRY_SIZE;
6260 ent->glink_offset = glink_offset;
6264 htab->reliplt->size += sizeof (Elf32_External_Rela);
6269 ent->plt.offset = (bfd_vma) -1;
6273 /* Allocate space for global sym dynamic relocs. */
6274 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6276 if (htab->tlsld_got.refcount > 0)
6278 htab->tlsld_got.offset = allocate_got (htab, 8);
6280 htab->relgot->size += sizeof (Elf32_External_Rela);
6283 htab->tlsld_got.offset = (bfd_vma) -1;
6285 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
6287 unsigned int g_o_t = 32768;
6289 /* If we haven't allocated the header, do so now. When we get here,
6290 for old plt/got the got size will be 0 to 32764 (not allocated),
6291 or 32780 to 65536 (header allocated). For new plt/got, the
6292 corresponding ranges are 0 to 32768 and 32780 to 65536. */
6293 if (htab->got->size <= 32768)
6295 g_o_t = htab->got->size;
6296 if (htab->plt_type == PLT_OLD)
6298 htab->got->size += htab->got_header_size;
6301 htab->elf.hgot->root.u.def.value = g_o_t;
6305 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6307 && !(sda->root.type == bfd_link_hash_defined
6308 || sda->root.type == bfd_link_hash_defweak))
6310 sda->root.type = bfd_link_hash_defined;
6311 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6312 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
6316 if (htab->glink != NULL
6317 && htab->glink->size != 0
6318 && htab->elf.dynamic_sections_created)
6320 htab->glink_pltresolve = htab->glink->size;
6321 /* Space for the branch table. */
6322 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6323 /* Pad out to align the start of PLTresolve. */
6324 htab->glink->size += -htab->glink->size & 15;
6325 htab->glink->size += GLINK_PLTRESOLVE;
6327 if (htab->emit_stub_syms)
6329 struct elf_link_hash_entry *sh;
6330 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6331 TRUE, FALSE, FALSE);
6334 if (sh->root.type == bfd_link_hash_new)
6336 sh->root.type = bfd_link_hash_defined;
6337 sh->root.u.def.section = htab->glink;
6338 sh->root.u.def.value = htab->glink_pltresolve;
6339 sh->ref_regular = 1;
6340 sh->def_regular = 1;
6341 sh->ref_regular_nonweak = 1;
6342 sh->forced_local = 1;
6345 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6346 TRUE, FALSE, FALSE);
6349 if (sh->root.type == bfd_link_hash_new)
6351 sh->root.type = bfd_link_hash_defined;
6352 sh->root.u.def.section = htab->glink;
6353 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6354 sh->ref_regular = 1;
6355 sh->def_regular = 1;
6356 sh->ref_regular_nonweak = 1;
6357 sh->forced_local = 1;
6363 if (htab->glink != NULL
6364 && htab->glink->size != 0
6365 && htab->glink_eh_frame != NULL
6366 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6367 && _bfd_elf_eh_frame_present (info))
6369 s = htab->glink_eh_frame;
6370 s->size = sizeof (glink_eh_frame_cie) + 20;
6374 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6379 /* We've now determined the sizes of the various dynamic sections.
6380 Allocate memory for them. */
6382 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
6384 bfd_boolean strip_section = TRUE;
6386 if ((s->flags & SEC_LINKER_CREATED) == 0)
6392 /* We'd like to strip these sections if they aren't needed, but if
6393 we've exported dynamic symbols from them we must leave them.
6394 It's too late to tell BFD to get rid of the symbols. */
6395 if (htab->elf.hplt != NULL)
6396 strip_section = FALSE;
6397 /* Strip this section if we don't need it; see the
6400 else if (s == htab->iplt
6402 || s == htab->glink_eh_frame
6403 || s == htab->sgotplt
6405 || s == htab->dynbss
6406 || s == htab->dynsbss
6407 || s == htab->sdata[0].section
6408 || s == htab->sdata[1].section)
6410 /* Strip these too. */
6412 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6417 /* Remember whether there are any relocation sections. */
6420 /* We use the reloc_count field as a counter if we need
6421 to copy relocs into the output file. */
6427 /* It's not one of our sections, so don't allocate space. */
6431 if (s->size == 0 && strip_section)
6433 /* If we don't need this section, strip it from the
6434 output file. This is mostly to handle .rela.bss and
6435 .rela.plt. We must create both sections in
6436 create_dynamic_sections, because they must be created
6437 before the linker maps input sections to output
6438 sections. The linker does that before
6439 adjust_dynamic_symbol is called, and it is that
6440 function which decides whether anything needs to go
6441 into these sections. */
6442 s->flags |= SEC_EXCLUDE;
6446 if ((s->flags & SEC_HAS_CONTENTS) == 0)
6449 /* Allocate memory for the section contents. */
6450 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6451 if (s->contents == NULL)
6455 if (htab->elf.dynamic_sections_created)
6457 /* Add some entries to the .dynamic section. We fill in the
6458 values later, in ppc_elf_finish_dynamic_sections, but we
6459 must add the entries now so that we get the correct size for
6460 the .dynamic section. The DT_DEBUG entry is filled in by the
6461 dynamic linker and used by the debugger. */
6462 #define add_dynamic_entry(TAG, VAL) \
6463 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6465 if (info->executable)
6467 if (!add_dynamic_entry (DT_DEBUG, 0))
6471 if (htab->plt != NULL && htab->plt->size != 0)
6473 if (!add_dynamic_entry (DT_PLTGOT, 0)
6474 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6475 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6476 || !add_dynamic_entry (DT_JMPREL, 0))
6480 if (htab->glink != NULL && htab->glink->size != 0)
6482 if (!add_dynamic_entry (DT_PPC_GOT, 0))
6484 if (!htab->no_tls_get_addr_opt
6485 && htab->tls_get_addr != NULL
6486 && htab->tls_get_addr->plt.plist != NULL
6487 && !add_dynamic_entry (DT_PPC_TLSOPT, 0))
6493 if (!add_dynamic_entry (DT_RELA, 0)
6494 || !add_dynamic_entry (DT_RELASZ, 0)
6495 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6499 /* If any dynamic relocs apply to a read-only section, then we
6500 need a DT_TEXTREL entry. */
6501 if ((info->flags & DF_TEXTREL) == 0)
6502 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
6505 if ((info->flags & DF_TEXTREL) != 0)
6507 if (!add_dynamic_entry (DT_TEXTREL, 0))
6510 if (htab->is_vxworks
6511 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6514 #undef add_dynamic_entry
6516 if (htab->glink_eh_frame != NULL
6517 && htab->glink_eh_frame->contents != NULL)
6519 unsigned char *p = htab->glink_eh_frame->contents;
6522 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6523 /* CIE length (rewrite in case little-endian). */
6524 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6525 p += sizeof (glink_eh_frame_cie);
6527 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6528 bfd_put_32 (htab->elf.dynobj, val, p);
6531 val = p - htab->glink_eh_frame->contents;
6532 bfd_put_32 (htab->elf.dynobj, val, p);
6534 /* Offset to .glink. Set later. */
6537 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6543 && htab->elf.dynamic_sections_created)
6545 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6547 *p++ = DW_CFA_advance_loc + adv;
6550 *p++ = DW_CFA_advance_loc1;
6553 else if (adv < 65536)
6555 *p++ = DW_CFA_advance_loc2;
6556 bfd_put_16 (htab->elf.dynobj, adv, p);
6561 *p++ = DW_CFA_advance_loc4;
6562 bfd_put_32 (htab->elf.dynobj, adv, p);
6565 *p++ = DW_CFA_register;
6568 *p++ = DW_CFA_advance_loc + 4;
6569 *p++ = DW_CFA_restore_extended;
6572 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6573 == htab->glink_eh_frame->size);
6579 /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6582 ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6584 if (h->plt.plist != NULL
6586 && (!h->pointer_equality_needed
6587 || !h->ref_regular_nonweak))
6590 return _bfd_elf_hash_symbol (h);
6593 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6595 /* Relaxation trampolines. r12 is available for clobbering (r11, is
6596 used for some functions that are allowed to break the ABI). */
6597 static const int shared_stub_entry[] =
6599 0x7c0802a6, /* mflr 0 */
6600 0x429f0005, /* bcl 20, 31, .Lxxx */
6601 0x7d8802a6, /* mflr 12 */
6602 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
6603 0x398c0008, /* addi 12, 12, (xxx-.Lxxx)@l */
6604 0x7c0803a6, /* mtlr 0 */
6605 0x7d8903a6, /* mtctr 12 */
6606 0x4e800420, /* bctr */
6609 static const int stub_entry[] =
6611 0x3d800000, /* lis 12,xxx@ha */
6612 0x398c0000, /* addi 12,12,xxx@l */
6613 0x7d8903a6, /* mtctr 12 */
6614 0x4e800420, /* bctr */
6618 ppc_elf_relax_section (bfd *abfd,
6620 struct bfd_link_info *link_info,
6625 struct one_fixup *next;
6627 /* Final link, can use the symbol offset. For a
6628 relocatable link we use the symbol's index. */
6633 Elf_Internal_Shdr *symtab_hdr;
6634 bfd_byte *contents = NULL;
6635 Elf_Internal_Sym *isymbuf = NULL;
6636 Elf_Internal_Rela *internal_relocs = NULL;
6637 Elf_Internal_Rela *irel, *irelend;
6638 struct one_fixup *fixups = NULL;
6639 unsigned changes = 0;
6640 struct ppc_elf_link_hash_table *htab;
6641 bfd_size_type trampoff;
6643 bfd_boolean maybe_pasted;
6647 /* Nothing to do if there are no relocations, and no need to do
6648 anything with non-alloc or non-code sections. */
6649 if ((isec->flags & SEC_ALLOC) == 0
6650 || (isec->flags & SEC_CODE) == 0
6651 || (isec->flags & SEC_RELOC) == 0
6652 || isec->reloc_count == 0)
6655 /* We cannot represent the required PIC relocs in the output, so don't
6656 do anything. The linker doesn't support mixing -shared and -r
6658 if (link_info->relocatable && link_info->shared)
6661 trampoff = (isec->size + 3) & (bfd_vma) -4;
6662 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6663 || strcmp (isec->output_section->name, ".fini") == 0);
6664 /* Space for a branch around any trampolines. */
6668 symtab_hdr = &elf_symtab_hdr (abfd);
6670 /* Get a copy of the native relocations. */
6671 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6672 link_info->keep_memory);
6673 if (internal_relocs == NULL)
6676 htab = ppc_elf_hash_table (link_info);
6677 got2 = bfd_get_section_by_name (abfd, ".got2");
6679 irelend = internal_relocs + isec->reloc_count;
6680 for (irel = internal_relocs; irel < irelend; irel++)
6682 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
6685 struct one_fixup *f;
6686 size_t insn_offset = 0;
6687 bfd_vma max_branch_offset, val;
6690 struct elf_link_hash_entry *h;
6691 struct plt_entry **plist;
6692 unsigned char sym_type;
6697 case R_PPC_LOCAL24PC:
6698 case R_PPC_PLTREL24:
6699 max_branch_offset = 1 << 25;
6703 case R_PPC_REL14_BRTAKEN:
6704 case R_PPC_REL14_BRNTAKEN:
6705 max_branch_offset = 1 << 15;
6712 /* Get the value of the symbol referred to by the reloc. */
6714 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
6716 /* A local symbol. */
6717 Elf_Internal_Sym *isym;
6719 /* Read this BFD's local symbols. */
6720 if (isymbuf == NULL)
6722 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
6723 if (isymbuf == NULL)
6724 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
6725 symtab_hdr->sh_info, 0,
6730 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6731 if (isym->st_shndx == SHN_UNDEF)
6732 tsec = bfd_und_section_ptr;
6733 else if (isym->st_shndx == SHN_ABS)
6734 tsec = bfd_abs_section_ptr;
6735 else if (isym->st_shndx == SHN_COMMON)
6736 tsec = bfd_com_section_ptr;
6738 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
6740 toff = isym->st_value;
6741 sym_type = ELF_ST_TYPE (isym->st_info);
6745 /* Global symbol handling. */
6748 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6749 h = elf_sym_hashes (abfd)[indx];
6751 while (h->root.type == bfd_link_hash_indirect
6752 || h->root.type == bfd_link_hash_warning)
6753 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6755 if (h->root.type == bfd_link_hash_defined
6756 || h->root.type == bfd_link_hash_defweak)
6758 tsec = h->root.u.def.section;
6759 toff = h->root.u.def.value;
6761 else if (h->root.type == bfd_link_hash_undefined
6762 || h->root.type == bfd_link_hash_undefweak)
6764 tsec = bfd_und_section_ptr;
6765 toff = link_info->relocatable ? indx : 0;
6773 /* The condition here under which we call find_plt_ent must
6774 match that in relocate_section. If we call find_plt_ent here
6775 but not in relocate_section, or vice versa, then the branch
6776 destination used here may be incorrect. */
6780 /* We know is_branch_reloc (r_type) is true. */
6781 if (h->type == STT_GNU_IFUNC
6782 || r_type == R_PPC_PLTREL24)
6783 plist = &h->plt.plist;
6785 else if (sym_type == STT_GNU_IFUNC
6786 && elf_local_got_offsets (abfd) != NULL)
6788 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6789 struct plt_entry **local_plt = (struct plt_entry **)
6790 (local_got_offsets + symtab_hdr->sh_info);
6791 plist = local_plt + ELF32_R_SYM (irel->r_info);
6796 struct plt_entry *ent;
6798 if (r_type == R_PPC_PLTREL24 && link_info->shared)
6799 addend = irel->r_addend;
6800 ent = find_plt_ent (plist, got2, addend);
6803 if (htab->plt_type == PLT_NEW
6805 || !htab->elf.dynamic_sections_created
6806 || h->dynindx == -1)
6809 toff = ent->glink_offset;
6814 toff = ent->plt.offset;
6819 /* If the branch and target are in the same section, you have
6820 no hope of adding stubs. We'll error out later should the
6825 /* There probably isn't any reason to handle symbols in
6826 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
6827 attribute for a code section, and we are only looking at
6828 branches. However, implement it correctly here as a
6829 reference for other target relax_section functions. */
6830 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
6832 /* At this stage in linking, no SEC_MERGE symbol has been
6833 adjusted, so all references to such symbols need to be
6834 passed through _bfd_merged_section_offset. (Later, in
6835 relocate_section, all SEC_MERGE symbols *except* for
6836 section symbols have been adjusted.)
6838 gas may reduce relocations against symbols in SEC_MERGE
6839 sections to a relocation against the section symbol when
6840 the original addend was zero. When the reloc is against
6841 a section symbol we should include the addend in the
6842 offset passed to _bfd_merged_section_offset, since the
6843 location of interest is the original symbol. On the
6844 other hand, an access to "sym+addend" where "sym" is not
6845 a section symbol should not include the addend; Such an
6846 access is presumed to be an offset from "sym"; The
6847 location of interest is just "sym". */
6848 if (sym_type == STT_SECTION)
6849 toff += irel->r_addend;
6851 toff = _bfd_merged_section_offset (abfd, &tsec,
6852 elf_section_data (tsec)->sec_info,
6855 if (sym_type != STT_SECTION)
6856 toff += irel->r_addend;
6858 /* PLTREL24 addends are special. */
6859 else if (r_type != R_PPC_PLTREL24)
6860 toff += irel->r_addend;
6862 /* Attempted -shared link of non-pic code loses. */
6863 if (tsec->output_section == NULL)
6866 roff = irel->r_offset;
6868 /* If the branch is in range, no need to do anything. */
6869 if (tsec != bfd_und_section_ptr
6870 && (!link_info->relocatable
6871 /* A relocatable link may have sections moved during
6872 final link, so do not presume they remain in range. */
6873 || tsec->output_section == isec->output_section))
6875 bfd_vma symaddr, reladdr;
6877 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
6878 reladdr = isec->output_section->vma + isec->output_offset + roff;
6879 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
6883 /* Look for an existing fixup to this address. */
6884 for (f = fixups; f ; f = f->next)
6885 if (f->tsec == tsec && f->toff == toff)
6891 unsigned long stub_rtype;
6893 val = trampoff - roff;
6894 if (val >= max_branch_offset)
6895 /* Oh dear, we can't reach a trampoline. Don't try to add
6896 one. We'll report an error later. */
6899 if (link_info->shared)
6901 size = 4 * ARRAY_SIZE (shared_stub_entry);
6906 size = 4 * ARRAY_SIZE (stub_entry);
6909 stub_rtype = R_PPC_RELAX;
6910 if (tsec == htab->plt
6911 || tsec == htab->glink)
6913 stub_rtype = R_PPC_RELAX_PLT;
6914 if (r_type == R_PPC_PLTREL24)
6915 stub_rtype = R_PPC_RELAX_PLTREL24;
6918 /* Hijack the old relocation. Since we need two
6919 relocations for this use a "composite" reloc. */
6920 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
6922 irel->r_offset = trampoff + insn_offset;
6923 if (r_type == R_PPC_PLTREL24
6924 && stub_rtype != R_PPC_RELAX_PLTREL24)
6927 /* Record the fixup so we don't do it again this section. */
6928 f = bfd_malloc (sizeof (*f));
6932 f->trampoff = trampoff;
6940 val = f->trampoff - roff;
6941 if (val >= max_branch_offset)
6944 /* Nop out the reloc, since we're finalizing things here. */
6945 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
6948 /* Get the section contents. */
6949 if (contents == NULL)
6951 /* Get cached copy if it exists. */
6952 if (elf_section_data (isec)->this_hdr.contents != NULL)
6953 contents = elf_section_data (isec)->this_hdr.contents;
6956 /* Go get them off disk. */
6957 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
6962 /* Fix up the existing branch to hit the trampoline. */
6963 hit_addr = contents + roff;
6967 case R_PPC_LOCAL24PC:
6968 case R_PPC_PLTREL24:
6969 t0 = bfd_get_32 (abfd, hit_addr);
6971 t0 |= val & 0x3fffffc;
6972 bfd_put_32 (abfd, t0, hit_addr);
6976 case R_PPC_REL14_BRTAKEN:
6977 case R_PPC_REL14_BRNTAKEN:
6978 t0 = bfd_get_32 (abfd, hit_addr);
6981 bfd_put_32 (abfd, t0, hit_addr);
6986 /* Write out the trampolines. */
6995 struct one_fixup *f = fixups;
6996 fixups = fixups->next;
7001 contents = bfd_realloc_or_free (contents, trampoff);
7002 if (contents == NULL)
7005 isec->size = (isec->size + 3) & (bfd_vma) -4;
7006 dest = contents + isec->size;
7007 /* Branch around the trampolines. */
7010 bfd_vma val = B + trampoff - isec->size;
7011 bfd_put_32 (abfd, val, dest);
7014 isec->size = trampoff;
7016 if (link_info->shared)
7018 stub = shared_stub_entry;
7019 size = ARRAY_SIZE (shared_stub_entry);
7024 size = ARRAY_SIZE (stub_entry);
7028 while (dest < contents + trampoff)
7030 bfd_put_32 (abfd, stub[i], dest);
7036 BFD_ASSERT (i == 0);
7040 && symtab_hdr->contents != (unsigned char *) isymbuf)
7042 if (! link_info->keep_memory)
7046 /* Cache the symbols for elf_link_input_bfd. */
7047 symtab_hdr->contents = (unsigned char *) isymbuf;
7051 if (contents != NULL
7052 && elf_section_data (isec)->this_hdr.contents != contents)
7054 if (!changes && !link_info->keep_memory)
7058 /* Cache the section contents for elf_link_input_bfd. */
7059 elf_section_data (isec)->this_hdr.contents = contents;
7065 /* Append sufficient NOP relocs so we can write out relocation
7066 information for the trampolines. */
7067 Elf_Internal_Shdr *rel_hdr;
7068 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7069 * sizeof (*new_relocs));
7074 memcpy (new_relocs, internal_relocs,
7075 isec->reloc_count * sizeof (*new_relocs));
7076 for (ix = changes; ix--;)
7078 irel = new_relocs + ix + isec->reloc_count;
7080 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7082 if (internal_relocs != elf_section_data (isec)->relocs)
7083 free (internal_relocs);
7084 elf_section_data (isec)->relocs = new_relocs;
7085 isec->reloc_count += changes;
7086 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7087 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
7089 else if (elf_section_data (isec)->relocs != internal_relocs)
7090 free (internal_relocs);
7092 *again = changes != 0;
7093 if (!*again && link_info->relocatable)
7095 /* Convert the internal relax relocs to external form. */
7096 for (irel = internal_relocs; irel < irelend; irel++)
7097 if (ELF32_R_TYPE (irel->r_info) == R_PPC_RELAX)
7099 unsigned long r_symndx = ELF32_R_SYM (irel->r_info);
7101 /* Rewrite the reloc and convert one of the trailing nop
7102 relocs to describe this relocation. */
7103 BFD_ASSERT (ELF32_R_TYPE (irelend[-1].r_info) == R_PPC_NONE);
7104 /* The relocs are at the bottom 2 bytes */
7105 irel[0].r_offset += 2;
7106 memmove (irel + 1, irel, (irelend - irel - 1) * sizeof (*irel));
7107 irel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
7108 irel[1].r_offset += 4;
7109 irel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
7117 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7119 if (contents != NULL
7120 && elf_section_data (isec)->this_hdr.contents != contents)
7122 if (internal_relocs != NULL
7123 && elf_section_data (isec)->relocs != internal_relocs)
7124 free (internal_relocs);
7128 /* What to do when ld finds relocations against symbols defined in
7129 discarded sections. */
7132 ppc_elf_action_discarded (asection *sec)
7134 if (strcmp (".fixup", sec->name) == 0)
7137 if (strcmp (".got2", sec->name) == 0)
7140 return _bfd_elf_default_action_discarded (sec);
7143 /* Fill in the address for a pointer generated in a linker section. */
7146 elf_finish_pointer_linker_section (bfd *input_bfd,
7147 elf_linker_section_t *lsect,
7148 struct elf_link_hash_entry *h,
7150 const Elf_Internal_Rela *rel)
7152 elf_linker_section_pointers_t *linker_section_ptr;
7154 BFD_ASSERT (lsect != NULL);
7158 /* Handle global symbol. */
7159 struct ppc_elf_link_hash_entry *eh;
7161 eh = (struct ppc_elf_link_hash_entry *) h;
7162 BFD_ASSERT (eh->elf.def_regular);
7163 linker_section_ptr = eh->linker_section_pointer;
7167 /* Handle local symbol. */
7168 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
7170 BFD_ASSERT (is_ppc_elf (input_bfd));
7171 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
7172 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7175 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7178 BFD_ASSERT (linker_section_ptr != NULL);
7180 /* Offset will always be a multiple of four, so use the bottom bit
7181 as a "written" flag. */
7182 if ((linker_section_ptr->offset & 1) == 0)
7184 bfd_put_32 (lsect->section->owner,
7185 relocation + linker_section_ptr->addend,
7186 lsect->section->contents + linker_section_ptr->offset);
7187 linker_section_ptr->offset += 1;
7190 relocation = (lsect->section->output_section->vma
7191 + lsect->section->output_offset
7192 + linker_section_ptr->offset - 1
7193 - SYM_VAL (lsect->sym));
7197 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7198 lsect->name, (long) relocation, (long) relocation);
7204 #define PPC_LO(v) ((v) & 0xffff)
7205 #define PPC_HI(v) (((v) >> 16) & 0xffff)
7206 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
7209 write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
7210 struct bfd_link_info *info)
7212 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7213 bfd *output_bfd = info->output_bfd;
7216 plt = ((ent->plt.offset & ~1)
7217 + plt_sec->output_section->vma
7218 + plt_sec->output_offset);
7224 if (ent->addend >= 32768)
7226 + ent->sec->output_section->vma
7227 + ent->sec->output_offset);
7228 else if (htab->elf.hgot != NULL)
7229 got = SYM_VAL (htab->elf.hgot);
7233 if (plt + 0x8000 < 0x10000)
7235 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7237 bfd_put_32 (output_bfd, MTCTR_11, p);
7239 bfd_put_32 (output_bfd, BCTR, p);
7241 bfd_put_32 (output_bfd, NOP, p);
7246 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7248 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7250 bfd_put_32 (output_bfd, MTCTR_11, p);
7252 bfd_put_32 (output_bfd, BCTR, p);
7258 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7260 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7262 bfd_put_32 (output_bfd, MTCTR_11, p);
7264 bfd_put_32 (output_bfd, BCTR, p);
7269 /* Return true if symbol is defined statically. */
7272 is_static_defined (struct elf_link_hash_entry *h)
7274 return ((h->root.type == bfd_link_hash_defined
7275 || h->root.type == bfd_link_hash_defweak)
7276 && h->root.u.def.section != NULL
7277 && h->root.u.def.section->output_section != NULL);
7280 /* If INSN is an opcode that may be used with an @tls operand, return
7281 the transformed insn for TLS optimisation, otherwise return 0. If
7282 REG is non-zero only match an insn with RB or RA equal to REG. */
7285 _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7289 if ((insn & (0x3f << 26)) != 31 << 26)
7292 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7293 rtra = insn & ((1 << 26) - (1 << 16));
7294 else if (((insn >> 16) & 0x1f) == reg)
7295 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7299 if ((insn & (0x3ff << 1)) == 266 << 1)
7302 else if ((insn & (0x1f << 1)) == 23 << 1
7303 && ((insn & (0x1f << 6)) < 14 << 6
7304 || ((insn & (0x1f << 6)) >= 16 << 6
7305 && (insn & (0x1f << 6)) < 24 << 6)))
7306 /* load and store indexed -> dform. */
7307 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7308 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7309 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7310 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7311 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7313 insn = (58 << 26) | 2;
7320 /* If INSN is an opcode that may be used with an @tprel operand, return
7321 the transformed insn for an undefined weak symbol, ie. with the
7322 thread pointer REG operand removed. Otherwise return 0. */
7325 _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7327 if ((insn & (0x1f << 16)) == reg << 16
7328 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7329 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7330 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7331 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7332 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7333 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7334 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7335 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7336 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7337 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7338 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7339 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7340 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7341 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7342 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7343 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7345 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7346 && ((insn & 3) == 0 || (insn & 3) == 3))))
7348 insn &= ~(0x1f << 16);
7350 else if ((insn & (0x1f << 21)) == reg << 21
7351 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7352 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7353 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7355 insn &= ~(0x1f << 21);
7356 insn |= (insn & (0x1f << 16)) << 5;
7357 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7358 insn -= 2 >> 26; /* convert to ori,oris */
7366 is_insn_ds_form (unsigned int insn)
7368 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7369 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7370 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7371 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7375 is_insn_dq_form (unsigned int insn)
7377 return (insn & (0x3f << 26)) == 56u << 26; /* lq */
7380 /* The RELOCATE_SECTION function is called by the ELF backend linker
7381 to handle the relocations for a section.
7383 The relocs are always passed as Rela structures; if the section
7384 actually uses Rel structures, the r_addend field will always be
7387 This function is responsible for adjust the section contents as
7388 necessary, and (if using Rela relocs and generating a
7389 relocatable output file) adjusting the reloc addend as
7392 This function does not have to worry about setting the reloc
7393 address or the reloc symbol index.
7395 LOCAL_SYMS is a pointer to the swapped in local symbols.
7397 LOCAL_SECTIONS is an array giving the section in the input file
7398 corresponding to the st_shndx field of each local symbol.
7400 The global hash table entry for the global symbols can be found
7401 via elf_sym_hashes (input_bfd).
7403 When generating relocatable output, this function must handle
7404 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7405 going to be the section symbol corresponding to the output
7406 section, which means that the addend must be adjusted
7410 ppc_elf_relocate_section (bfd *output_bfd,
7411 struct bfd_link_info *info,
7413 asection *input_section,
7415 Elf_Internal_Rela *relocs,
7416 Elf_Internal_Sym *local_syms,
7417 asection **local_sections)
7419 Elf_Internal_Shdr *symtab_hdr;
7420 struct elf_link_hash_entry **sym_hashes;
7421 struct ppc_elf_link_hash_table *htab;
7422 Elf_Internal_Rela *rel;
7423 Elf_Internal_Rela *relend;
7424 Elf_Internal_Rela outrel;
7426 bfd_vma *local_got_offsets;
7427 bfd_boolean ret = TRUE;
7428 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
7429 bfd_boolean is_vxworks_tls;
7432 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7433 "%ld relocations%s",
7434 input_bfd, input_section,
7435 (long) input_section->reloc_count,
7436 (info->relocatable) ? " (relocatable)" : "");
7439 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7441 /* Initialize howto table if not already done. */
7442 if (!ppc_elf_howto_table[R_PPC_ADDR32])
7443 ppc_elf_howto_init ();
7445 htab = ppc_elf_hash_table (info);
7446 local_got_offsets = elf_local_got_offsets (input_bfd);
7447 symtab_hdr = &elf_symtab_hdr (input_bfd);
7448 sym_hashes = elf_sym_hashes (input_bfd);
7449 /* We have to handle relocations in vxworks .tls_vars sections
7450 specially, because the dynamic loader is 'weird'. */
7451 is_vxworks_tls = (htab->is_vxworks && info->shared
7452 && !strcmp (input_section->output_section->name,
7455 relend = relocs + input_section->reloc_count;
7456 for (; rel < relend; rel++)
7458 enum elf_ppc_reloc_type r_type;
7460 bfd_reloc_status_type r;
7461 Elf_Internal_Sym *sym;
7463 struct elf_link_hash_entry *h;
7464 const char *sym_name;
7465 reloc_howto_type *howto;
7466 unsigned long r_symndx;
7468 bfd_vma branch_bit, from;
7469 bfd_boolean unresolved_reloc;
7471 unsigned int tls_type, tls_mask, tls_gd;
7472 struct plt_entry **ifunc;
7474 r_type = ELF32_R_TYPE (rel->r_info);
7478 unresolved_reloc = FALSE;
7480 r_symndx = ELF32_R_SYM (rel->r_info);
7482 if (r_symndx < symtab_hdr->sh_info)
7484 sym = local_syms + r_symndx;
7485 sec = local_sections[r_symndx];
7486 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
7488 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
7492 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7493 r_symndx, symtab_hdr, sym_hashes,
7495 unresolved_reloc, warned);
7497 sym_name = h->root.root.string;
7500 if (sec != NULL && discarded_section (sec))
7502 /* For relocs against symbols from removed linkonce sections,
7503 or sections discarded by a linker script, we just want the
7504 section contents zeroed. Avoid any special processing. */
7506 if (r_type < R_PPC_max)
7507 howto = ppc_elf_howto_table[r_type];
7508 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
7509 rel, 1, relend, howto, 0, contents);
7512 if (info->relocatable)
7515 && r_type == R_PPC_PLTREL24
7516 && rel->r_addend != 0)
7518 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7519 addend specifies the GOT pointer offset within .got2. */
7520 rel->r_addend += got2->output_offset;
7525 /* TLS optimizations. Replace instruction sequences and relocs
7526 based on information we collected in tls_optimize. We edit
7527 RELOCS so that --emit-relocs will output something sensible
7528 for the final instruction stream. */
7532 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7533 else if (local_got_offsets != NULL)
7535 struct plt_entry **local_plt;
7538 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7539 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
7540 tls_mask = lgot_masks[r_symndx];
7543 /* Ensure reloc mapping code below stays sane. */
7544 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7545 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7546 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7547 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7548 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7549 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7550 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7551 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7558 case R_PPC_GOT_TPREL16:
7559 case R_PPC_GOT_TPREL16_LO:
7560 if ((tls_mask & TLS_TLS) != 0
7561 && (tls_mask & TLS_TPREL) == 0)
7565 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
7567 insn |= 0x3c020000; /* addis 0,2,0 */
7568 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
7569 r_type = R_PPC_TPREL16_HA;
7570 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7575 if ((tls_mask & TLS_TLS) != 0
7576 && (tls_mask & TLS_TPREL) == 0)
7580 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7581 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7584 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7585 r_type = R_PPC_TPREL16_LO;
7586 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7588 /* Was PPC_TLS which sits on insn boundary, now
7589 PPC_TPREL16_LO which is at low-order half-word. */
7590 rel->r_offset += d_offset;
7594 case R_PPC_GOT_TLSGD16_HI:
7595 case R_PPC_GOT_TLSGD16_HA:
7596 tls_gd = TLS_TPRELGD;
7597 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7601 case R_PPC_GOT_TLSLD16_HI:
7602 case R_PPC_GOT_TLSLD16_HA:
7603 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7606 if ((tls_mask & tls_gd) != 0)
7607 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7608 + R_PPC_GOT_TPREL16);
7611 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7612 rel->r_offset -= d_offset;
7613 r_type = R_PPC_NONE;
7615 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7619 case R_PPC_GOT_TLSGD16:
7620 case R_PPC_GOT_TLSGD16_LO:
7621 tls_gd = TLS_TPRELGD;
7622 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7626 case R_PPC_GOT_TLSLD16:
7627 case R_PPC_GOT_TLSLD16_LO:
7628 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7630 unsigned int insn1, insn2;
7634 offset = (bfd_vma) -1;
7635 /* If not using the newer R_PPC_TLSGD/LD to mark
7636 __tls_get_addr calls, we must trust that the call
7637 stays with its arg setup insns, ie. that the next
7638 reloc is the __tls_get_addr call associated with
7639 the current reloc. Edit both insns. */
7640 if (input_section->has_tls_get_addr_call
7642 && branch_reloc_hash_match (input_bfd, rel + 1,
7643 htab->tls_get_addr))
7644 offset = rel[1].r_offset;
7645 if ((tls_mask & tls_gd) != 0)
7648 insn1 = bfd_get_32 (output_bfd,
7649 contents + rel->r_offset - d_offset);
7650 insn1 &= (1 << 26) - 1;
7651 insn1 |= 32 << 26; /* lwz */
7652 if (offset != (bfd_vma) -1)
7654 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7655 insn2 = 0x7c631214; /* add 3,3,2 */
7656 bfd_put_32 (output_bfd, insn2, contents + offset);
7658 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7659 + R_PPC_GOT_TPREL16);
7660 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7665 insn1 = 0x3c620000; /* addis 3,2,0 */
7668 /* Was an LD reloc. */
7670 r_symndx < symtab_hdr->sh_info;
7672 if (local_sections[r_symndx] == sec)
7674 if (r_symndx >= symtab_hdr->sh_info)
7675 r_symndx = STN_UNDEF;
7676 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7677 if (r_symndx != STN_UNDEF)
7678 rel->r_addend -= (local_syms[r_symndx].st_value
7679 + sec->output_offset
7680 + sec->output_section->vma);
7682 r_type = R_PPC_TPREL16_HA;
7683 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7684 if (offset != (bfd_vma) -1)
7686 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7687 rel[1].r_offset = offset + d_offset;
7688 rel[1].r_addend = rel->r_addend;
7689 insn2 = 0x38630000; /* addi 3,3,0 */
7690 bfd_put_32 (output_bfd, insn2, contents + offset);
7693 bfd_put_32 (output_bfd, insn1,
7694 contents + rel->r_offset - d_offset);
7697 /* We changed the symbol on an LD reloc. Start over
7698 in order to get h, sym, sec etc. right. */
7706 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7709 bfd_vma offset = rel->r_offset;
7711 if ((tls_mask & TLS_TPRELGD) != 0)
7714 r_type = R_PPC_NONE;
7715 insn2 = 0x7c631214; /* add 3,3,2 */
7720 r_type = R_PPC_TPREL16_LO;
7721 rel->r_offset += d_offset;
7722 insn2 = 0x38630000; /* addi 3,3,0 */
7724 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7725 bfd_put_32 (output_bfd, insn2, contents + offset);
7726 /* Zap the reloc on the _tls_get_addr call too. */
7727 BFD_ASSERT (offset == rel[1].r_offset);
7728 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7733 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7738 r_symndx < symtab_hdr->sh_info;
7740 if (local_sections[r_symndx] == sec)
7742 if (r_symndx >= symtab_hdr->sh_info)
7743 r_symndx = STN_UNDEF;
7744 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7745 if (r_symndx != STN_UNDEF)
7746 rel->r_addend -= (local_syms[r_symndx].st_value
7747 + sec->output_offset
7748 + sec->output_section->vma);
7750 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7751 rel->r_offset += d_offset;
7752 insn2 = 0x38630000; /* addi 3,3,0 */
7753 bfd_put_32 (output_bfd, insn2,
7754 contents + rel->r_offset - d_offset);
7755 /* Zap the reloc on the _tls_get_addr call too. */
7756 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
7757 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7764 /* Handle other relocations that tweak non-addend part of insn. */
7771 /* Branch taken prediction relocations. */
7772 case R_PPC_ADDR14_BRTAKEN:
7773 case R_PPC_REL14_BRTAKEN:
7774 branch_bit = BRANCH_PREDICT_BIT;
7777 /* Branch not taken prediction relocations. */
7778 case R_PPC_ADDR14_BRNTAKEN:
7779 case R_PPC_REL14_BRNTAKEN:
7783 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7784 insn &= ~BRANCH_PREDICT_BIT;
7787 from = (rel->r_offset
7788 + input_section->output_offset
7789 + input_section->output_section->vma);
7791 /* Invert 'y' bit if not the default. */
7792 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
7793 insn ^= BRANCH_PREDICT_BIT;
7795 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7801 if (!htab->is_vxworks)
7803 struct plt_entry *ent;
7807 if (h->type == STT_GNU_IFUNC)
7808 ifunc = &h->plt.plist;
7810 else if (local_got_offsets != NULL
7811 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
7813 struct plt_entry **local_plt;
7815 local_plt = (struct plt_entry **) (local_got_offsets
7816 + symtab_hdr->sh_info);
7817 ifunc = local_plt + r_symndx;
7823 || is_branch_reloc (r_type)))
7826 if (r_type == R_PPC_PLTREL24 && info->shared)
7827 addend = rel->r_addend;
7828 ent = find_plt_ent (ifunc, got2, addend);
7832 if (h == NULL && (ent->plt.offset & 1) == 0)
7834 Elf_Internal_Rela rela;
7837 rela.r_offset = (htab->iplt->output_section->vma
7838 + htab->iplt->output_offset
7840 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
7841 rela.r_addend = relocation;
7842 loc = htab->reliplt->contents;
7843 loc += (htab->reliplt->reloc_count++
7844 * sizeof (Elf32_External_Rela));
7845 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7847 ent->plt.offset |= 1;
7849 if (h == NULL && (ent->glink_offset & 1) == 0)
7851 unsigned char *p = ((unsigned char *) htab->glink->contents
7852 + ent->glink_offset);
7853 write_glink_stub (ent, htab->iplt, p, info);
7854 ent->glink_offset |= 1;
7857 unresolved_reloc = FALSE;
7858 if (htab->plt_type == PLT_NEW
7859 || !htab->elf.dynamic_sections_created
7861 relocation = (htab->glink->output_section->vma
7862 + htab->glink->output_offset
7863 + (ent->glink_offset & ~1));
7865 relocation = (htab->plt->output_section->vma
7866 + htab->plt->output_offset
7871 addend = rel->r_addend;
7874 if (r_type < R_PPC_max)
7875 howto = ppc_elf_howto_table[r_type];
7879 info->callbacks->einfo
7880 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
7881 input_bfd, (int) r_type, sym_name);
7883 bfd_set_error (bfd_error_bad_value);
7891 case R_PPC_EMB_MRKREF:
7892 case R_PPC_GNU_VTINHERIT:
7893 case R_PPC_GNU_VTENTRY:
7896 /* GOT16 relocations. Like an ADDR16 using the symbol's
7897 address in the GOT as relocation value instead of the
7898 symbol's value itself. Also, create a GOT entry for the
7899 symbol and put the symbol value there. */
7900 case R_PPC_GOT_TLSGD16:
7901 case R_PPC_GOT_TLSGD16_LO:
7902 case R_PPC_GOT_TLSGD16_HI:
7903 case R_PPC_GOT_TLSGD16_HA:
7904 tls_type = TLS_TLS | TLS_GD;
7907 case R_PPC_GOT_TLSLD16:
7908 case R_PPC_GOT_TLSLD16_LO:
7909 case R_PPC_GOT_TLSLD16_HI:
7910 case R_PPC_GOT_TLSLD16_HA:
7911 tls_type = TLS_TLS | TLS_LD;
7914 case R_PPC_GOT_TPREL16:
7915 case R_PPC_GOT_TPREL16_LO:
7916 case R_PPC_GOT_TPREL16_HI:
7917 case R_PPC_GOT_TPREL16_HA:
7918 tls_type = TLS_TLS | TLS_TPREL;
7921 case R_PPC_GOT_DTPREL16:
7922 case R_PPC_GOT_DTPREL16_LO:
7923 case R_PPC_GOT_DTPREL16_HI:
7924 case R_PPC_GOT_DTPREL16_HA:
7925 tls_type = TLS_TLS | TLS_DTPREL;
7929 case R_PPC_GOT16_LO:
7930 case R_PPC_GOT16_HI:
7931 case R_PPC_GOT16_HA:
7935 /* Relocation is to the entry for this symbol in the global
7941 if (htab->got == NULL)
7945 if (tls_type == (TLS_TLS | TLS_LD)
7947 || !h->def_dynamic))
7948 offp = &htab->tlsld_got.offset;
7952 dyn = htab->elf.dynamic_sections_created;
7953 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7955 && SYMBOL_REFERENCES_LOCAL (info, h)))
7956 /* This is actually a static link, or it is a
7957 -Bsymbolic link and the symbol is defined
7958 locally, or the symbol was forced to be local
7959 because of a version file. */
7963 BFD_ASSERT (h->dynindx != -1);
7965 unresolved_reloc = FALSE;
7967 offp = &h->got.offset;
7971 if (local_got_offsets == NULL)
7973 offp = &local_got_offsets[r_symndx];
7976 /* The offset must always be a multiple of 4. We use the
7977 least significant bit to record whether we have already
7978 processed this entry. */
7984 unsigned int tls_m = (tls_mask
7985 & (TLS_LD | TLS_GD | TLS_DTPREL
7986 | TLS_TPREL | TLS_TPRELGD));
7988 if (offp == &htab->tlsld_got.offset)
7994 /* We might have multiple got entries for this sym.
7995 Initialize them all. */
8000 if ((tls_m & TLS_LD) != 0)
8002 tls_ty = TLS_TLS | TLS_LD;
8005 else if ((tls_m & TLS_GD) != 0)
8007 tls_ty = TLS_TLS | TLS_GD;
8010 else if ((tls_m & TLS_DTPREL) != 0)
8012 tls_ty = TLS_TLS | TLS_DTPREL;
8013 tls_m &= ~TLS_DTPREL;
8015 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
8017 tls_ty = TLS_TLS | TLS_TPREL;
8021 /* Generate relocs for the dynamic linker. */
8022 if ((info->shared || indx != 0)
8023 && (offp == &htab->tlsld_got.offset
8025 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8026 || h->root.type != bfd_link_hash_undefweak))
8028 asection *rsec = htab->relgot;
8032 rsec = htab->reliplt;
8033 outrel.r_offset = (htab->got->output_section->vma
8034 + htab->got->output_offset
8036 outrel.r_addend = 0;
8037 if (tls_ty & (TLS_LD | TLS_GD))
8039 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
8040 if (tls_ty == (TLS_TLS | TLS_GD))
8042 loc = rsec->contents;
8043 loc += (rsec->reloc_count++
8044 * sizeof (Elf32_External_Rela));
8045 bfd_elf32_swap_reloca_out (output_bfd,
8047 outrel.r_offset += 4;
8049 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8052 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8053 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8054 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8055 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
8057 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
8058 else if (ifunc != NULL)
8059 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8061 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
8062 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
8064 outrel.r_addend += relocation;
8065 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
8066 outrel.r_addend -= htab->elf.tls_sec->vma;
8068 loc = rsec->contents;
8069 loc += (rsec->reloc_count++
8070 * sizeof (Elf32_External_Rela));
8071 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
8074 /* Init the .got section contents if we're not
8075 emitting a reloc. */
8078 bfd_vma value = relocation;
8080 if (tls_ty == (TLS_TLS | TLS_LD))
8082 else if (tls_ty != 0)
8084 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
8085 if (tls_ty == (TLS_TLS | TLS_TPREL))
8086 value += DTP_OFFSET - TP_OFFSET;
8088 if (tls_ty == (TLS_TLS | TLS_GD))
8090 bfd_put_32 (output_bfd, value,
8091 htab->got->contents + off + 4);
8095 bfd_put_32 (output_bfd, value,
8096 htab->got->contents + off);
8100 if (tls_ty & (TLS_LD | TLS_GD))
8109 if (off >= (bfd_vma) -2)
8112 if ((tls_type & TLS_TLS) != 0)
8114 if (tls_type != (TLS_TLS | TLS_LD))
8116 if ((tls_mask & TLS_LD) != 0
8118 || !h->def_dynamic))
8120 if (tls_type != (TLS_TLS | TLS_GD))
8122 if ((tls_mask & TLS_GD) != 0)
8124 if (tls_type != (TLS_TLS | TLS_DTPREL))
8126 if ((tls_mask & TLS_DTPREL) != 0)
8133 relocation = (htab->got->output_section->vma
8134 + htab->got->output_offset
8136 - SYM_VAL (htab->elf.hgot));
8138 /* Addends on got relocations don't make much sense.
8139 x+off@got is actually x@got+off, and since the got is
8140 generated by a hash table traversal, the value in the
8141 got at entry m+n bears little relation to the entry m. */
8143 info->callbacks->einfo
8144 (_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
8145 input_bfd, input_section, rel->r_offset,
8151 /* Relocations that need no special processing. */
8152 case R_PPC_LOCAL24PC:
8153 /* It makes no sense to point a local relocation
8154 at a symbol not in this object. */
8155 if (unresolved_reloc)
8157 if (! (*info->callbacks->undefined_symbol) (info,
8158 h->root.root.string,
8168 case R_PPC_DTPREL16:
8169 case R_PPC_DTPREL16_LO:
8170 case R_PPC_DTPREL16_HI:
8171 case R_PPC_DTPREL16_HA:
8172 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8175 /* Relocations that may need to be propagated if this is a shared
8178 case R_PPC_TPREL16_LO:
8179 case R_PPC_TPREL16_HI:
8180 case R_PPC_TPREL16_HA:
8182 && h->root.type == bfd_link_hash_undefweak
8183 && h->dynindx == -1)
8185 /* Make this relocation against an undefined weak symbol
8186 resolve to zero. This is really just a tweak, since
8187 code using weak externs ought to check that they are
8188 defined before using them. */
8189 bfd_byte *p = contents + rel->r_offset - d_offset;
8190 unsigned int insn = bfd_get_32 (output_bfd, p);
8191 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8193 bfd_put_32 (output_bfd, insn, p);
8196 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8197 /* The TPREL16 relocs shouldn't really be used in shared
8198 libs as they will result in DT_TEXTREL being set, but
8199 support them anyway. */
8203 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8206 case R_PPC_DTPREL32:
8207 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8210 case R_PPC_DTPMOD32:
8216 case R_PPC_REL16_LO:
8217 case R_PPC_REL16_HI:
8218 case R_PPC_REL16_HA:
8222 if (h == NULL || h == htab->elf.hgot)
8228 case R_PPC_ADDR16_LO:
8229 case R_PPC_ADDR16_HI:
8230 case R_PPC_ADDR16_HA:
8235 case R_PPC_VLE_REL8:
8236 case R_PPC_VLE_REL15:
8237 case R_PPC_VLE_REL24:
8240 case R_PPC_REL14_BRTAKEN:
8241 case R_PPC_REL14_BRNTAKEN:
8242 /* If these relocations are not to a named symbol, they can be
8243 handled right here, no need to bother the dynamic linker. */
8244 if (SYMBOL_CALLS_LOCAL (info, h)
8245 || h == htab->elf.hgot)
8251 case R_PPC_ADDR14_BRTAKEN:
8252 case R_PPC_ADDR14_BRNTAKEN:
8253 if (h != NULL && !info->shared)
8258 if ((input_section->flags & SEC_ALLOC) == 0
8264 && ((h->root.type == bfd_link_hash_undefined
8265 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
8266 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
8267 || (h->root.type == bfd_link_hash_undefweak
8268 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
8269 && (must_be_dyn_reloc (info, r_type)
8270 || !SYMBOL_CALLS_LOCAL (info, h)))
8271 || (ELIMINATE_COPY_RELOCS
8276 && !h->def_regular))
8282 fprintf (stderr, "ppc_elf_relocate_section needs to "
8283 "create relocation for %s\n",
8284 (h && h->root.root.string
8285 ? h->root.root.string : "<unknown>"));
8288 /* When generating a shared object, these relocations
8289 are copied into the output file to be resolved at run
8291 sreloc = elf_section_data (input_section)->sreloc;
8293 sreloc = htab->reliplt;
8298 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8301 if (outrel.r_offset == (bfd_vma) -1
8302 || outrel.r_offset == (bfd_vma) -2)
8303 skip = (int) outrel.r_offset;
8304 outrel.r_offset += (input_section->output_section->vma
8305 + input_section->output_offset);
8308 memset (&outrel, 0, sizeof outrel);
8310 && (h->root.type == bfd_link_hash_undefined
8311 || h->root.type == bfd_link_hash_undefweak))
8312 || !SYMBOL_REFERENCES_LOCAL (info, h))
8314 BFD_ASSERT (h->dynindx != -1);
8315 unresolved_reloc = FALSE;
8316 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
8317 outrel.r_addend = rel->r_addend;
8321 outrel.r_addend = relocation + rel->r_addend;
8323 if (r_type != R_PPC_ADDR32)
8329 /* If we get here when building a static
8330 executable, then the libc startup function
8331 responsible for applying indirect function
8332 relocations is going to complain about
8334 If we get here when building a dynamic
8335 executable, it will be because we have
8336 a text relocation. The dynamic loader
8337 will set the text segment writable and
8338 non-executable to apply text relocations.
8339 So we'll segfault when trying to run the
8340 indirection function to resolve the reloc. */
8341 info->callbacks->einfo
8342 (_("%P: %H: relocation %s for indirect "
8343 "function %s unsupported\n"),
8344 input_bfd, input_section, rel->r_offset,
8349 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
8351 else if (sec == NULL || sec->owner == NULL)
8353 bfd_set_error (bfd_error_bad_value);
8360 /* We are turning this relocation into one
8361 against a section symbol. It would be
8362 proper to subtract the symbol's value,
8363 osec->vma, from the emitted reloc addend,
8364 but ld.so expects buggy relocs.
8365 FIXME: Why not always use a zero index? */
8366 osec = sec->output_section;
8367 indx = elf_section_data (osec)->dynindx;
8370 osec = htab->elf.text_index_section;
8371 indx = elf_section_data (osec)->dynindx;
8373 BFD_ASSERT (indx != 0);
8376 printf ("indx=%ld section=%s flags=%08x name=%s\n",
8377 indx, osec->name, osec->flags,
8378 h->root.root.string);
8382 outrel.r_info = ELF32_R_INFO (indx, r_type);
8384 else if (ifunc != NULL)
8385 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8387 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
8390 loc = sreloc->contents;
8391 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8392 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
8397 /* This reloc will be computed at runtime. We clear the memory
8398 so that it contains predictable value. */
8400 && ((input_section->flags & SEC_ALLOC) != 0
8401 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
8403 relocation = howto->pc_relative ? outrel.r_offset : 0;
8410 case R_PPC_RELAX_PLT:
8411 case R_PPC_RELAX_PLTREL24:
8414 struct plt_entry *ent;
8415 bfd_vma got2_addend = 0;
8417 if (r_type == R_PPC_RELAX_PLTREL24)
8420 got2_addend = addend;
8423 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
8424 if (htab->plt_type == PLT_NEW)
8425 relocation = (htab->glink->output_section->vma
8426 + htab->glink->output_offset
8427 + ent->glink_offset);
8429 relocation = (htab->plt->output_section->vma
8430 + htab->plt->output_offset
8437 relocation -= (input_section->output_section->vma
8438 + input_section->output_offset
8439 + rel->r_offset - 4);
8445 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
8446 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
8448 /* We're clearing the bits for R_PPC_ADDR16_HA
8449 and R_PPC_ADDR16_LO here. */
8453 /* t0 is HA, t1 is LO */
8454 relocation += addend;
8455 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
8456 t1 |= relocation & 0xffff;
8458 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
8459 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
8461 /* Rewrite the reloc and convert one of the trailing nop
8462 relocs to describe this relocation. */
8463 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
8464 /* The relocs are at the bottom 2 bytes */
8465 rel[0].r_offset += 2;
8466 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
8467 rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
8468 rel[1].r_offset += 4;
8469 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
8474 /* Indirect .sdata relocation. */
8475 case R_PPC_EMB_SDAI16:
8476 BFD_ASSERT (htab->sdata[0].section != NULL);
8477 if (!is_static_defined (htab->sdata[0].sym))
8479 unresolved_reloc = TRUE;
8483 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
8484 h, relocation, rel);
8488 /* Indirect .sdata2 relocation. */
8489 case R_PPC_EMB_SDA2I16:
8490 BFD_ASSERT (htab->sdata[1].section != NULL);
8491 if (!is_static_defined (htab->sdata[1].sym))
8493 unresolved_reloc = TRUE;
8497 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
8498 h, relocation, rel);
8502 /* Handle the TOC16 reloc. We want to use the offset within the .got
8503 section, not the actual VMA. This is appropriate when generating
8504 an embedded ELF object, for which the .got section acts like the
8505 AIX .toc section. */
8506 case R_PPC_TOC16: /* phony GOT16 relocations */
8507 if (sec == NULL || sec->output_section == NULL)
8509 unresolved_reloc = TRUE;
8512 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
8514 || strcmp (bfd_get_section_name (sec->owner, sec),
8517 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
8520 case R_PPC_PLTREL24:
8521 if (h != NULL && ifunc == NULL)
8523 struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2,
8524 info->shared ? addend : 0);
8526 || htab->plt == NULL)
8528 /* We didn't make a PLT entry for this symbol. This
8529 happens when statically linking PIC code, or when
8530 using -Bsymbolic. */
8534 /* Relocation is to the entry for this symbol in the
8535 procedure linkage table. */
8536 unresolved_reloc = FALSE;
8537 if (htab->plt_type == PLT_NEW)
8538 relocation = (htab->glink->output_section->vma
8539 + htab->glink->output_offset
8540 + ent->glink_offset);
8542 relocation = (htab->plt->output_section->vma
8543 + htab->plt->output_offset
8548 /* R_PPC_PLTREL24 is rather special. If non-zero, the
8549 addend specifies the GOT pointer offset within .got2.
8550 Don't apply it to the relocation field. */
8554 /* Relocate against _SDA_BASE_. */
8555 case R_PPC_SDAREL16:
8558 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
8561 || sec->output_section == NULL
8562 || !is_static_defined (sda))
8564 unresolved_reloc = TRUE;
8567 addend -= SYM_VAL (sda);
8569 name = bfd_get_section_name (output_bfd, sec->output_section);
8570 if (! ((CONST_STRNEQ (name, ".sdata")
8571 && (name[6] == 0 || name[6] == '.'))
8572 || (CONST_STRNEQ (name, ".sbss")
8573 && (name[5] == 0 || name[5] == '.'))))
8575 info->callbacks->einfo
8576 (_("%P: %B: the target (%s) of a %s relocation is "
8577 "in the wrong output section (%s)\n"),
8586 /* Relocate against _SDA2_BASE_. */
8587 case R_PPC_EMB_SDA2REL:
8590 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
8593 || sec->output_section == NULL
8594 || !is_static_defined (sda))
8596 unresolved_reloc = TRUE;
8599 addend -= SYM_VAL (sda);
8601 name = bfd_get_section_name (output_bfd, sec->output_section);
8602 if (! (CONST_STRNEQ (name, ".sdata2")
8603 || CONST_STRNEQ (name, ".sbss2")))
8605 info->callbacks->einfo
8606 (_("%P: %B: the target (%s) of a %s relocation is "
8607 "in the wrong output section (%s)\n"),
8616 case R_PPC_VLE_LO16A:
8617 relocation = (relocation + addend) & 0xffff;
8618 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8619 relocation, split16a_type);
8622 case R_PPC_VLE_LO16D:
8623 relocation = (relocation + addend) & 0xffff;
8624 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8625 relocation, split16d_type);
8628 case R_PPC_VLE_HI16A:
8629 relocation = ((relocation + addend) >> 16) & 0xffff;
8630 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8631 relocation, split16a_type);
8634 case R_PPC_VLE_HI16D:
8635 relocation = ((relocation + addend) >> 16) & 0xffff;
8636 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8637 relocation, split16d_type);
8640 case R_PPC_VLE_HA16A:
8642 bfd_vma value = relocation + addend;
8643 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8644 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8645 value, split16a_type);
8649 case R_PPC_VLE_HA16D:
8651 bfd_vma value = relocation + addend;
8652 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8653 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8654 value, split16d_type);
8658 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
8659 case R_PPC_EMB_SDA21:
8660 case R_PPC_VLE_SDA21:
8661 case R_PPC_EMB_RELSDA:
8662 case R_PPC_VLE_SDA21_LO:
8666 struct elf_link_hash_entry *sda = NULL;
8668 if (sec == NULL || sec->output_section == NULL)
8670 unresolved_reloc = TRUE;
8674 name = bfd_get_section_name (output_bfd, sec->output_section);
8675 if (((CONST_STRNEQ (name, ".sdata")
8676 && (name[6] == 0 || name[6] == '.'))
8677 || (CONST_STRNEQ (name, ".sbss")
8678 && (name[5] == 0 || name[5] == '.'))))
8681 sda = htab->sdata[0].sym;
8683 else if (CONST_STRNEQ (name, ".sdata2")
8684 || CONST_STRNEQ (name, ".sbss2"))
8687 sda = htab->sdata[1].sym;
8689 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
8690 || strcmp (name, ".PPC.EMB.sbss0") == 0)
8696 info->callbacks->einfo
8697 (_("%P: %B: the target (%s) of a %s relocation is "
8698 "in the wrong output section (%s)\n"),
8704 bfd_set_error (bfd_error_bad_value);
8711 if (!is_static_defined (sda))
8713 unresolved_reloc = TRUE;
8716 addend -= SYM_VAL (sda);
8720 && (r_type == R_PPC_VLE_SDA21
8721 || r_type == R_PPC_VLE_SDA21_LO))
8723 /* Use the split20 format. */
8724 bfd_vma insn, bits12to15, bits21to31;
8725 bfd_vma value = (relocation + rel->r_offset) & 0xffff;
8726 /* Propagate sign bit, if necessary. */
8727 insn = (value & 0x8000) ? 0x70107800 : 0x70000000;
8728 bits12to15 = value & 0x700;
8729 bits21to31 = value & 0x7ff;
8732 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8735 else if (r_type == R_PPC_EMB_SDA21
8736 || r_type == R_PPC_VLE_SDA21
8737 || r_type == R_PPC_VLE_SDA21_LO)
8739 bfd_vma insn; /* Fill in register field. */
8741 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
8742 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
8743 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8748 case R_PPC_VLE_SDAREL_LO16A:
8749 case R_PPC_VLE_SDAREL_LO16D:
8750 case R_PPC_VLE_SDAREL_HI16A:
8751 case R_PPC_VLE_SDAREL_HI16D:
8752 case R_PPC_VLE_SDAREL_HA16A:
8753 case R_PPC_VLE_SDAREL_HA16D:
8758 struct elf_link_hash_entry *sda = NULL;
8760 if (sec == NULL || sec->output_section == NULL)
8762 unresolved_reloc = TRUE;
8766 name = bfd_get_section_name (output_bfd, sec->output_section);
8767 if (((CONST_STRNEQ (name, ".sdata")
8768 && (name[6] == 0 || name[6] == '.'))
8769 || (CONST_STRNEQ (name, ".sbss")
8770 && (name[5] == 0 || name[5] == '.'))))
8773 sda = htab->sdata[0].sym;
8775 else if (CONST_STRNEQ (name, ".sdata2")
8776 || CONST_STRNEQ (name, ".sbss2"))
8779 sda = htab->sdata[1].sym;
8783 (*_bfd_error_handler)
8784 (_("%B: the target (%s) of a %s relocation is "
8785 "in the wrong output section (%s)"),
8791 bfd_set_error (bfd_error_bad_value);
8798 if (!is_static_defined (sda))
8800 unresolved_reloc = TRUE;
8805 value = sda->root.u.def.section->output_section->vma
8806 + sda->root.u.def.section->output_offset;
8808 if (r_type == R_PPC_VLE_SDAREL_LO16A)
8810 value = (value + addend) & 0xffff;
8811 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8812 value, split16a_type);
8814 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
8816 value = (value + addend) & 0xffff;
8817 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8818 value, split16d_type);
8820 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
8822 value = ((value + addend) >> 16) & 0xffff;
8823 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8824 value, split16a_type);
8826 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
8828 value = ((value + addend) >> 16) & 0xffff;
8829 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8830 value, split16d_type);
8832 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
8835 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8836 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8837 value, split16a_type);
8839 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
8842 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8843 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8844 value, split16d_type);
8849 /* Relocate against the beginning of the section. */
8851 case R_PPC_SECTOFF_LO:
8852 case R_PPC_SECTOFF_HI:
8853 case R_PPC_SECTOFF_HA:
8854 if (sec == NULL || sec->output_section == NULL)
8856 unresolved_reloc = TRUE;
8859 addend -= sec->output_section->vma;
8862 /* Negative relocations. */
8863 case R_PPC_EMB_NADDR32:
8864 case R_PPC_EMB_NADDR16:
8865 case R_PPC_EMB_NADDR16_LO:
8866 case R_PPC_EMB_NADDR16_HI:
8867 case R_PPC_EMB_NADDR16_HA:
8868 addend -= 2 * relocation;
8872 case R_PPC_GLOB_DAT:
8873 case R_PPC_JMP_SLOT:
8874 case R_PPC_RELATIVE:
8875 case R_PPC_IRELATIVE:
8877 case R_PPC_PLTREL32:
8878 case R_PPC_PLT16_LO:
8879 case R_PPC_PLT16_HI:
8880 case R_PPC_PLT16_HA:
8882 case R_PPC_EMB_RELSEC16:
8883 case R_PPC_EMB_RELST_LO:
8884 case R_PPC_EMB_RELST_HI:
8885 case R_PPC_EMB_RELST_HA:
8886 case R_PPC_EMB_BIT_FLD:
8887 info->callbacks->einfo
8888 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
8893 bfd_set_error (bfd_error_invalid_operation);
8898 /* Do any further special processing. */
8904 case R_PPC_ADDR16_HA:
8905 case R_PPC_REL16_HA:
8906 case R_PPC_SECTOFF_HA:
8907 case R_PPC_TPREL16_HA:
8908 case R_PPC_DTPREL16_HA:
8909 case R_PPC_EMB_NADDR16_HA:
8910 case R_PPC_EMB_RELST_HA:
8911 /* It's just possible that this symbol is a weak symbol
8912 that's not actually defined anywhere. In that case,
8913 'sec' would be NULL, and we should leave the symbol
8914 alone (it will be set to zero elsewhere in the link). */
8919 case R_PPC_PLT16_HA:
8920 case R_PPC_GOT16_HA:
8921 case R_PPC_GOT_TLSGD16_HA:
8922 case R_PPC_GOT_TLSLD16_HA:
8923 case R_PPC_GOT_TPREL16_HA:
8924 case R_PPC_GOT_DTPREL16_HA:
8925 /* Add 0x10000 if sign bit in 0:15 is set.
8926 Bits 0:15 are not used. */
8931 case R_PPC_ADDR16_LO:
8933 case R_PPC_GOT16_LO:
8934 case R_PPC_SDAREL16:
8936 case R_PPC_SECTOFF_LO:
8937 case R_PPC_DTPREL16:
8938 case R_PPC_DTPREL16_LO:
8940 case R_PPC_TPREL16_LO:
8941 case R_PPC_GOT_TLSGD16:
8942 case R_PPC_GOT_TLSGD16_LO:
8943 case R_PPC_GOT_TLSLD16:
8944 case R_PPC_GOT_TLSLD16_LO:
8945 case R_PPC_GOT_DTPREL16:
8946 case R_PPC_GOT_DTPREL16_LO:
8947 case R_PPC_GOT_TPREL16:
8948 case R_PPC_GOT_TPREL16_LO:
8950 /* The 32-bit ABI lacks proper relocations to deal with
8951 certain 64-bit instructions. Prevent damage to bits
8952 that make up part of the insn opcode. */
8953 unsigned int insn, mask, lobit;
8955 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
8957 if (is_insn_ds_form (insn))
8959 else if (is_insn_dq_form (insn))
8963 lobit = mask & (relocation + addend);
8967 info->callbacks->einfo
8968 (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
8969 input_bfd, input_section, rel->r_offset,
8970 howto->name, sym_name, mask + 1);
8971 bfd_set_error (bfd_error_bad_value);
8974 addend += insn & mask;
8980 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
8981 "offset = %ld, addend = %ld\n",
8986 (long) rel->r_offset,
8990 if (unresolved_reloc
8991 && !((input_section->flags & SEC_DEBUGGING) != 0
8993 && _bfd_elf_section_offset (output_bfd, info, input_section,
8994 rel->r_offset) != (bfd_vma) -1)
8996 info->callbacks->einfo
8997 (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
8998 input_bfd, input_section, rel->r_offset,
9004 r = _bfd_final_link_relocate (howto,
9012 if (r != bfd_reloc_ok)
9014 if (r == bfd_reloc_overflow)
9019 && h->root.type == bfd_link_hash_undefweak
9020 && howto->pc_relative)
9022 /* Assume this is a call protected by other code that
9023 detect the symbol is undefined. If this is the case,
9024 we can safely ignore the overflow. If not, the
9025 program is hosed anyway, and a little warning isn't
9031 if (! (*info->callbacks->reloc_overflow) (info,
9032 (h ? &h->root : NULL),
9043 info->callbacks->einfo
9044 (_("%P: %H: %s reloc against `%s': error %d\n"),
9045 input_bfd, input_section, rel->r_offset,
9046 howto->name, sym_name, (int) r);
9053 fprintf (stderr, "\n");
9059 /* Finish up dynamic symbol handling. We set the contents of various
9060 dynamic sections here. */
9063 ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
9064 struct bfd_link_info *info,
9065 struct elf_link_hash_entry *h,
9066 Elf_Internal_Sym *sym)
9068 struct ppc_elf_link_hash_table *htab;
9069 struct plt_entry *ent;
9070 bfd_boolean doneone;
9073 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
9074 h->root.root.string);
9077 htab = ppc_elf_hash_table (info);
9078 BFD_ASSERT (htab->elf.dynobj != NULL);
9081 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
9082 if (ent->plt.offset != (bfd_vma) -1)
9086 Elf_Internal_Rela rela;
9088 bfd_vma reloc_index;
9090 if (htab->plt_type == PLT_NEW
9091 || !htab->elf.dynamic_sections_created
9092 || h->dynindx == -1)
9093 reloc_index = ent->plt.offset / 4;
9096 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
9097 / htab->plt_slot_size);
9098 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
9099 && htab->plt_type == PLT_OLD)
9100 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
9103 /* This symbol has an entry in the procedure linkage table.
9105 if (htab->plt_type == PLT_VXWORKS
9106 && htab->elf.dynamic_sections_created
9107 && h->dynindx != -1)
9110 const bfd_vma *plt_entry;
9112 /* The first three entries in .got.plt are reserved. */
9113 got_offset = (reloc_index + 3) * 4;
9115 /* Use the right PLT. */
9116 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
9117 : ppc_elf_vxworks_plt_entry;
9119 /* Fill in the .plt on VxWorks. */
9122 bfd_put_32 (output_bfd,
9123 plt_entry[0] | PPC_HA (got_offset),
9124 htab->plt->contents + ent->plt.offset + 0);
9125 bfd_put_32 (output_bfd,
9126 plt_entry[1] | PPC_LO (got_offset),
9127 htab->plt->contents + ent->plt.offset + 4);
9131 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9133 bfd_put_32 (output_bfd,
9134 plt_entry[0] | PPC_HA (got_loc),
9135 htab->plt->contents + ent->plt.offset + 0);
9136 bfd_put_32 (output_bfd,
9137 plt_entry[1] | PPC_LO (got_loc),
9138 htab->plt->contents + ent->plt.offset + 4);
9141 bfd_put_32 (output_bfd, plt_entry[2],
9142 htab->plt->contents + ent->plt.offset + 8);
9143 bfd_put_32 (output_bfd, plt_entry[3],
9144 htab->plt->contents + ent->plt.offset + 12);
9146 /* This instruction is an immediate load. The value loaded is
9147 the byte offset of the R_PPC_JMP_SLOT relocation from the
9148 start of the .rela.plt section. The value is stored in the
9149 low-order 16 bits of the load instruction. */
9150 /* NOTE: It appears that this is now an index rather than a
9151 prescaled offset. */
9152 bfd_put_32 (output_bfd,
9153 plt_entry[4] | reloc_index,
9154 htab->plt->contents + ent->plt.offset + 16);
9155 /* This instruction is a PC-relative branch whose target is
9156 the start of the PLT section. The address of this branch
9157 instruction is 20 bytes beyond the start of this PLT entry.
9158 The address is encoded in bits 6-29, inclusive. The value
9159 stored is right-shifted by two bits, permitting a 26-bit
9161 bfd_put_32 (output_bfd,
9163 | (-(ent->plt.offset + 20) & 0x03fffffc)),
9164 htab->plt->contents + ent->plt.offset + 20);
9165 bfd_put_32 (output_bfd, plt_entry[6],
9166 htab->plt->contents + ent->plt.offset + 24);
9167 bfd_put_32 (output_bfd, plt_entry[7],
9168 htab->plt->contents + ent->plt.offset + 28);
9170 /* Fill in the GOT entry corresponding to this PLT slot with
9171 the address immediately after the "bctr" instruction
9172 in this PLT entry. */
9173 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
9174 + htab->plt->output_offset
9175 + ent->plt.offset + 16),
9176 htab->sgotplt->contents + got_offset);
9180 /* Fill in a couple of entries in .rela.plt.unloaded. */
9181 loc = htab->srelplt2->contents
9182 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
9183 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
9184 * sizeof (Elf32_External_Rela));
9186 /* Provide the @ha relocation for the first instruction. */
9187 rela.r_offset = (htab->plt->output_section->vma
9188 + htab->plt->output_offset
9189 + ent->plt.offset + 2);
9190 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9192 rela.r_addend = got_offset;
9193 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9194 loc += sizeof (Elf32_External_Rela);
9196 /* Provide the @l relocation for the second instruction. */
9197 rela.r_offset = (htab->plt->output_section->vma
9198 + htab->plt->output_offset
9199 + ent->plt.offset + 6);
9200 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9202 rela.r_addend = got_offset;
9203 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9204 loc += sizeof (Elf32_External_Rela);
9206 /* Provide a relocation for the GOT entry corresponding to this
9207 PLT slot. Point it at the middle of the .plt entry. */
9208 rela.r_offset = (htab->sgotplt->output_section->vma
9209 + htab->sgotplt->output_offset
9211 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9213 rela.r_addend = ent->plt.offset + 16;
9214 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9217 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
9218 In particular, the offset for the relocation is not the
9219 address of the PLT entry for this function, as specified
9220 by the ABI. Instead, the offset is set to the address of
9221 the GOT slot for this function. See EABI 4.4.4.1. */
9222 rela.r_offset = (htab->sgotplt->output_section->vma
9223 + htab->sgotplt->output_offset
9229 asection *splt = htab->plt;
9230 if (!htab->elf.dynamic_sections_created
9231 || h->dynindx == -1)
9234 rela.r_offset = (splt->output_section->vma
9235 + splt->output_offset
9237 if (htab->plt_type == PLT_OLD
9238 || !htab->elf.dynamic_sections_created
9239 || h->dynindx == -1)
9241 /* We don't need to fill in the .plt. The ppc dynamic
9242 linker will fill it in. */
9246 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
9247 + htab->glink->output_section->vma
9248 + htab->glink->output_offset);
9249 bfd_put_32 (output_bfd, val,
9250 splt->contents + ent->plt.offset);
9254 /* Fill in the entry in the .rela.plt section. */
9256 if (!htab->elf.dynamic_sections_created
9257 || h->dynindx == -1)
9259 BFD_ASSERT (h->type == STT_GNU_IFUNC
9261 && (h->root.type == bfd_link_hash_defined
9262 || h->root.type == bfd_link_hash_defweak));
9263 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
9264 rela.r_addend = SYM_VAL (h);
9267 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
9269 if (!htab->elf.dynamic_sections_created
9270 || h->dynindx == -1)
9271 loc = (htab->reliplt->contents
9272 + (htab->reliplt->reloc_count++
9273 * sizeof (Elf32_External_Rela)));
9275 loc = (htab->relplt->contents
9276 + reloc_index * sizeof (Elf32_External_Rela));
9277 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9279 if (!h->def_regular)
9281 /* Mark the symbol as undefined, rather than as
9282 defined in the .plt section. Leave the value if
9283 there were any relocations where pointer equality
9284 matters (this is a clue for the dynamic linker, to
9285 make function pointer comparisons work between an
9286 application and shared library), otherwise set it
9288 sym->st_shndx = SHN_UNDEF;
9289 if (!h->pointer_equality_needed)
9291 else if (!h->ref_regular_nonweak)
9293 /* This breaks function pointer comparisons, but
9294 that is better than breaking tests for a NULL
9295 function pointer. */
9299 else if (h->type == STT_GNU_IFUNC
9302 /* Set the value of ifunc symbols in a non-pie
9303 executable to the glink entry. This is to avoid
9304 text relocations. We can't do this for ifunc in
9305 allocate_dynrelocs, as we do for normal dynamic
9306 function symbols with plt entries, because we need
9307 to keep the original value around for the ifunc
9309 sym->st_shndx = (_bfd_elf_section_from_bfd_section
9310 (output_bfd, htab->glink->output_section));
9311 sym->st_value = (ent->glink_offset
9312 + htab->glink->output_offset
9313 + htab->glink->output_section->vma);
9318 if (htab->plt_type == PLT_NEW
9319 || !htab->elf.dynamic_sections_created
9320 || h->dynindx == -1)
9323 asection *splt = htab->plt;
9324 if (!htab->elf.dynamic_sections_created
9325 || h->dynindx == -1)
9328 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
9330 if (h == htab->tls_get_addr && !htab->no_tls_get_addr_opt)
9332 bfd_put_32 (output_bfd, LWZ_11_3, p);
9334 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
9336 bfd_put_32 (output_bfd, MR_0_3, p);
9338 bfd_put_32 (output_bfd, CMPWI_11_0, p);
9340 bfd_put_32 (output_bfd, ADD_3_12_2, p);
9342 bfd_put_32 (output_bfd, BEQLR, p);
9344 bfd_put_32 (output_bfd, MR_3_0, p);
9346 bfd_put_32 (output_bfd, NOP, p);
9350 write_glink_stub (ent, splt, p, info);
9353 /* We only need one non-PIC glink stub. */
9363 Elf_Internal_Rela rela;
9366 /* This symbols needs a copy reloc. Set it up. */
9369 fprintf (stderr, ", copy");
9372 BFD_ASSERT (h->dynindx != -1);
9374 if (ppc_elf_hash_entry (h)->has_sda_refs)
9378 BFD_ASSERT (s != NULL);
9380 rela.r_offset = SYM_VAL (h);
9381 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
9383 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
9384 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9388 fprintf (stderr, "\n");
9394 static enum elf_reloc_type_class
9395 ppc_elf_reloc_type_class (const struct bfd_link_info *info,
9396 const asection *rel_sec,
9397 const Elf_Internal_Rela *rela)
9399 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
9401 if (rel_sec == htab->reliplt)
9402 return reloc_class_ifunc;
9404 switch (ELF32_R_TYPE (rela->r_info))
9406 case R_PPC_RELATIVE:
9407 return reloc_class_relative;
9408 case R_PPC_JMP_SLOT:
9409 return reloc_class_plt;
9411 return reloc_class_copy;
9413 return reloc_class_normal;
9417 /* Finish up the dynamic sections. */
9420 ppc_elf_finish_dynamic_sections (bfd *output_bfd,
9421 struct bfd_link_info *info)
9425 struct ppc_elf_link_hash_table *htab;
9428 bfd_boolean ret = TRUE;
9431 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
9434 htab = ppc_elf_hash_table (info);
9435 dynobj = elf_hash_table (info)->dynobj;
9436 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
9437 if (htab->is_vxworks)
9438 splt = bfd_get_linker_section (dynobj, ".plt");
9443 if (htab->elf.hgot != NULL)
9444 got = SYM_VAL (htab->elf.hgot);
9446 if (htab->elf.dynamic_sections_created)
9448 Elf32_External_Dyn *dyncon, *dynconend;
9450 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
9452 dyncon = (Elf32_External_Dyn *) sdyn->contents;
9453 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
9454 for (; dyncon < dynconend; dyncon++)
9456 Elf_Internal_Dyn dyn;
9459 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
9464 if (htab->is_vxworks)
9468 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9472 dyn.d_un.d_val = htab->relplt->size;
9477 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9481 dyn.d_un.d_ptr = got;
9485 if (htab->is_vxworks)
9488 dyn.d_un.d_ptr -= htab->relplt->size;
9494 if (htab->is_vxworks
9495 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
9500 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
9504 if (htab->got != NULL)
9506 if (htab->elf.hgot->root.u.def.section == htab->got
9507 || htab->elf.hgot->root.u.def.section == htab->sgotplt)
9509 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
9511 p += htab->elf.hgot->root.u.def.value;
9512 if (htab->plt_type == PLT_OLD)
9514 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
9515 so that a function can easily find the address of
9516 _GLOBAL_OFFSET_TABLE_. */
9517 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
9518 < htab->elf.hgot->root.u.def.section->size);
9519 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
9524 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
9525 BFD_ASSERT (htab->elf.hgot->root.u.def.value
9526 < htab->elf.hgot->root.u.def.section->size);
9527 bfd_put_32 (output_bfd, val, p);
9532 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
9533 htab->elf.hgot->root.root.string,
9534 (htab->sgotplt != NULL
9535 ? htab->sgotplt->name : htab->got->name));
9536 bfd_set_error (bfd_error_bad_value);
9540 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
9543 /* Fill in the first entry in the VxWorks procedure linkage table. */
9544 if (splt && splt->size > 0)
9546 /* Use the right PLT. */
9547 const bfd_vma *plt_entry = (info->shared
9548 ? ppc_elf_vxworks_pic_plt0_entry
9549 : ppc_elf_vxworks_plt0_entry);
9553 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9555 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9556 splt->contents + 0);
9557 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9558 splt->contents + 4);
9562 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
9563 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
9565 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
9566 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
9567 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
9568 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
9569 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
9570 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
9574 Elf_Internal_Rela rela;
9577 loc = htab->srelplt2->contents;
9579 /* Output the @ha relocation for the first instruction. */
9580 rela.r_offset = (htab->plt->output_section->vma
9581 + htab->plt->output_offset
9583 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9585 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9586 loc += sizeof (Elf32_External_Rela);
9588 /* Output the @l relocation for the second instruction. */
9589 rela.r_offset = (htab->plt->output_section->vma
9590 + htab->plt->output_offset
9592 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9594 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9595 loc += sizeof (Elf32_External_Rela);
9597 /* Fix up the remaining relocations. They may have the wrong
9598 symbol index for _G_O_T_ or _P_L_T_ depending on the order
9599 in which symbols were output. */
9600 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
9602 Elf_Internal_Rela rel;
9604 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9605 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9606 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9607 loc += sizeof (Elf32_External_Rela);
9609 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9610 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9611 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9612 loc += sizeof (Elf32_External_Rela);
9614 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9615 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9616 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9617 loc += sizeof (Elf32_External_Rela);
9622 if (htab->glink != NULL
9623 && htab->glink->contents != NULL
9624 && htab->elf.dynamic_sections_created)
9627 unsigned char *endp;
9632 * PIC glink code is the following:
9634 * # ith PLT code stub.
9635 * addis 11,30,(plt+(i-1)*4-got)@ha
9636 * lwz 11,(plt+(i-1)*4-got)@l(11)
9640 * # A table of branches, one for each plt entry.
9641 * # The idea is that the plt call stub loads ctr and r11 with these
9642 * # addresses, so (r11 - res_0) gives the plt index * 4.
9643 * res_0: b PLTresolve
9644 * res_1: b PLTresolve
9646 * # Some number of entries towards the end can be nops
9652 * addis 11,11,(1f-res_0)@ha
9655 * 1: addi 11,11,(1b-res_0)@l
9658 * sub 11,11,12 # r11 = index * 4
9659 * addis 12,12,(got+4-1b)@ha
9660 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
9661 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
9664 * add 11,0,11 # r11 = index * 12 = reloc offset.
9667 static const unsigned int pic_plt_resolve[] =
9688 * Non-PIC glink code is a little simpler.
9690 * # ith PLT code stub.
9691 * lis 11,(plt+(i-1)*4)@ha
9692 * lwz 11,(plt+(i-1)*4)@l(11)
9696 * The branch table is the same, then comes
9700 * addis 11,11,(-res_0)@ha
9701 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
9702 * addi 11,11,(-res_0)@l # r11 = index * 4
9705 * lwz 12,(got+8)@l(12) # got[2] contains the map address
9706 * add 11,0,11 # r11 = index * 12 = reloc offset.
9709 static const unsigned int plt_resolve[] =
9729 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
9731 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
9734 /* Build the branch table, one for each plt entry (less one),
9735 and perhaps some padding. */
9736 p = htab->glink->contents;
9737 p += htab->glink_pltresolve;
9738 endp = htab->glink->contents;
9739 endp += htab->glink->size - GLINK_PLTRESOLVE;
9740 while (p < endp - 8 * 4)
9742 bfd_put_32 (output_bfd, B + endp - p, p);
9747 bfd_put_32 (output_bfd, NOP, p);
9751 res0 = (htab->glink_pltresolve
9752 + htab->glink->output_section->vma
9753 + htab->glink->output_offset);
9755 /* Last comes the PLTresolve stub. */
9760 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
9762 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
9765 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
9767 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
9768 + htab->glink->output_section->vma
9769 + htab->glink->output_offset);
9771 bfd_put_32 (output_bfd,
9772 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
9773 bfd_put_32 (output_bfd,
9774 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
9775 bfd_put_32 (output_bfd,
9776 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
9777 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
9779 bfd_put_32 (output_bfd,
9780 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
9781 bfd_put_32 (output_bfd,
9782 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
9786 bfd_put_32 (output_bfd,
9787 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
9788 bfd_put_32 (output_bfd,
9789 LWZ_12_12 + 4, p + 9*4);
9794 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
9796 bfd_put_32 (output_bfd, plt_resolve[i], p);
9799 p -= 4 * ARRAY_SIZE (plt_resolve);
9801 bfd_put_32 (output_bfd,
9802 LIS_12 + PPC_HA (got + 4), p + 0*4);
9803 bfd_put_32 (output_bfd,
9804 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
9805 bfd_put_32 (output_bfd,
9806 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
9807 if (PPC_HA (got + 4) == PPC_HA (got + 8))
9809 bfd_put_32 (output_bfd,
9810 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
9811 bfd_put_32 (output_bfd,
9812 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
9816 bfd_put_32 (output_bfd,
9817 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
9818 bfd_put_32 (output_bfd,
9819 LWZ_12_12 + 4, p + 6*4);
9824 if (htab->glink_eh_frame != NULL
9825 && htab->glink_eh_frame->contents != NULL)
9827 unsigned char *p = htab->glink_eh_frame->contents;
9830 p += sizeof (glink_eh_frame_cie);
9835 /* Offset to .glink. */
9836 val = (htab->glink->output_section->vma
9837 + htab->glink->output_offset);
9838 val -= (htab->glink_eh_frame->output_section->vma
9839 + htab->glink_eh_frame->output_offset);
9840 val -= p - htab->glink_eh_frame->contents;
9841 bfd_put_32 (htab->elf.dynobj, val, p);
9843 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
9844 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
9845 htab->glink_eh_frame,
9846 htab->glink_eh_frame->contents))
9853 #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
9854 #define TARGET_LITTLE_NAME "elf32-powerpcle"
9855 #define TARGET_BIG_SYM bfd_elf32_powerpc_vec
9856 #define TARGET_BIG_NAME "elf32-powerpc"
9857 #define ELF_ARCH bfd_arch_powerpc
9858 #define ELF_TARGET_ID PPC32_ELF_DATA
9859 #define ELF_MACHINE_CODE EM_PPC
9860 #ifdef __QNXTARGET__
9861 #define ELF_MAXPAGESIZE 0x1000
9863 #define ELF_MAXPAGESIZE 0x10000
9865 #define ELF_MINPAGESIZE 0x1000
9866 #define ELF_COMMONPAGESIZE 0x1000
9867 #define elf_info_to_howto ppc_elf_info_to_howto
9869 #ifdef EM_CYGNUS_POWERPC
9870 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
9874 #define ELF_MACHINE_ALT2 EM_PPC_OLD
9877 #define elf_backend_plt_not_loaded 1
9878 #define elf_backend_can_gc_sections 1
9879 #define elf_backend_can_refcount 1
9880 #define elf_backend_rela_normal 1
9882 #define bfd_elf32_mkobject ppc_elf_mkobject
9883 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
9884 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
9885 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
9886 #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
9887 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
9888 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
9889 #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
9891 #define elf_backend_object_p ppc_elf_object_p
9892 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
9893 #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
9894 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
9895 #define elf_backend_relocate_section ppc_elf_relocate_section
9896 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
9897 #define elf_backend_check_relocs ppc_elf_check_relocs
9898 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
9899 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
9900 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
9901 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
9902 #define elf_backend_hash_symbol ppc_elf_hash_symbol
9903 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
9904 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
9905 #define elf_backend_fake_sections ppc_elf_fake_sections
9906 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
9907 #define elf_backend_modify_segment_map ppc_elf_modify_segment_map
9908 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
9909 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
9910 #define elf_backend_write_core_note ppc_elf_write_core_note
9911 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
9912 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
9913 #define elf_backend_final_write_processing ppc_elf_final_write_processing
9914 #define elf_backend_write_section ppc_elf_write_section
9915 #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
9916 #define elf_backend_plt_sym_val ppc_elf_plt_sym_val
9917 #define elf_backend_action_discarded ppc_elf_action_discarded
9918 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
9919 #define elf_backend_post_process_headers _bfd_elf_set_osabi
9920 #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
9921 #define elf_backend_section_processing ppc_elf_section_processing
9923 #include "elf32-target.h"
9925 /* FreeBSD Target */
9927 #undef TARGET_LITTLE_SYM
9928 #undef TARGET_LITTLE_NAME
9930 #undef TARGET_BIG_SYM
9931 #define TARGET_BIG_SYM bfd_elf32_powerpc_freebsd_vec
9932 #undef TARGET_BIG_NAME
9933 #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
9936 #define ELF_OSABI ELFOSABI_FREEBSD
9939 #define elf32_bed elf32_powerpc_fbsd_bed
9941 #include "elf32-target.h"
9943 /* VxWorks Target */
9945 #undef TARGET_LITTLE_SYM
9946 #undef TARGET_LITTLE_NAME
9948 #undef TARGET_BIG_SYM
9949 #define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
9950 #undef TARGET_BIG_NAME
9951 #define TARGET_BIG_NAME "elf32-powerpc-vxworks"
9955 /* VxWorks uses the elf default section flags for .plt. */
9956 static const struct bfd_elf_special_section *
9957 ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9959 if (sec->name == NULL)
9962 if (strcmp (sec->name, ".plt") == 0)
9963 return _bfd_elf_get_sec_type_attr (abfd, sec);
9965 return ppc_elf_get_sec_type_attr (abfd, sec);
9968 /* Like ppc_elf_link_hash_table_create, but overrides
9969 appropriately for VxWorks. */
9970 static struct bfd_link_hash_table *
9971 ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
9973 struct bfd_link_hash_table *ret;
9975 ret = ppc_elf_link_hash_table_create (abfd);
9978 struct ppc_elf_link_hash_table *htab
9979 = (struct ppc_elf_link_hash_table *)ret;
9980 htab->is_vxworks = 1;
9981 htab->plt_type = PLT_VXWORKS;
9982 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
9983 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
9984 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
9989 /* Tweak magic VxWorks symbols as they are loaded. */
9991 ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
9992 struct bfd_link_info *info,
9993 Elf_Internal_Sym *sym,
9994 const char **namep ATTRIBUTE_UNUSED,
9995 flagword *flagsp ATTRIBUTE_UNUSED,
9999 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
10003 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
10007 ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
10009 ppc_elf_final_write_processing(abfd, linker);
10010 elf_vxworks_final_write_processing(abfd, linker);
10013 /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
10015 #undef elf_backend_want_plt_sym
10016 #define elf_backend_want_plt_sym 1
10017 #undef elf_backend_want_got_plt
10018 #define elf_backend_want_got_plt 1
10019 #undef elf_backend_got_symbol_offset
10020 #define elf_backend_got_symbol_offset 0
10021 #undef elf_backend_plt_not_loaded
10022 #define elf_backend_plt_not_loaded 0
10023 #undef elf_backend_plt_readonly
10024 #define elf_backend_plt_readonly 1
10025 #undef elf_backend_got_header_size
10026 #define elf_backend_got_header_size 12
10028 #undef bfd_elf32_get_synthetic_symtab
10030 #undef bfd_elf32_bfd_link_hash_table_create
10031 #define bfd_elf32_bfd_link_hash_table_create \
10032 ppc_elf_vxworks_link_hash_table_create
10033 #undef elf_backend_add_symbol_hook
10034 #define elf_backend_add_symbol_hook \
10035 ppc_elf_vxworks_add_symbol_hook
10036 #undef elf_backend_link_output_symbol_hook
10037 #define elf_backend_link_output_symbol_hook \
10038 elf_vxworks_link_output_symbol_hook
10039 #undef elf_backend_final_write_processing
10040 #define elf_backend_final_write_processing \
10041 ppc_elf_vxworks_final_write_processing
10042 #undef elf_backend_get_sec_type_attr
10043 #define elf_backend_get_sec_type_attr \
10044 ppc_elf_vxworks_get_sec_type_attr
10045 #undef elf_backend_emit_relocs
10046 #define elf_backend_emit_relocs \
10047 elf_vxworks_emit_relocs
10050 #define elf32_bed ppc_elf_vxworks_bed
10051 #undef elf_backend_post_process_headers
10053 #include "elf32-target.h"
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