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"
41 typedef enum split16_format_type
48 /* RELA relocations are used here. */
50 static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
51 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
52 static bfd_reloc_status_type ppc_elf_unhandled_reloc
53 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
54 static void ppc_elf_vle_split16
55 (bfd *, bfd_byte *, bfd_vma, bfd_vma, split16_format_type);
57 /* Branch prediction bit for branch taken relocs. */
58 #define BRANCH_PREDICT_BIT 0x200000
59 /* Mask to set RA in memory instructions. */
60 #define RA_REGISTER_MASK 0x001f0000
61 /* Value to shift register by to insert RA. */
62 #define RA_REGISTER_SHIFT 16
64 /* The name of the dynamic interpreter. This is put in the .interp
66 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
68 /* For old-style PLT. */
69 /* The number of single-slot PLT entries (the rest use two slots). */
70 #define PLT_NUM_SINGLE_ENTRIES 8192
72 /* For new-style .glink and .plt. */
73 #define GLINK_PLTRESOLVE 16*4
74 #define GLINK_ENTRY_SIZE 4*4
75 #define TLS_GET_ADDR_GLINK_SIZE 12*4
77 /* VxWorks uses its own plt layout, filled in by the static linker. */
79 /* The standard VxWorks PLT entry. */
80 #define VXWORKS_PLT_ENTRY_SIZE 32
81 static const bfd_vma ppc_elf_vxworks_plt_entry
82 [VXWORKS_PLT_ENTRY_SIZE / 4] =
84 0x3d800000, /* lis r12,0 */
85 0x818c0000, /* lwz r12,0(r12) */
86 0x7d8903a6, /* mtctr r12 */
87 0x4e800420, /* bctr */
88 0x39600000, /* li r11,0 */
89 0x48000000, /* b 14 <.PLT0resolve+0x4> */
93 static const bfd_vma ppc_elf_vxworks_pic_plt_entry
94 [VXWORKS_PLT_ENTRY_SIZE / 4] =
96 0x3d9e0000, /* addis r12,r30,0 */
97 0x818c0000, /* lwz r12,0(r12) */
98 0x7d8903a6, /* mtctr r12 */
99 0x4e800420, /* bctr */
100 0x39600000, /* li r11,0 */
101 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
102 0x60000000, /* nop */
103 0x60000000, /* nop */
106 /* The initial VxWorks PLT entry. */
107 #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
108 static const bfd_vma ppc_elf_vxworks_plt0_entry
109 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
111 0x3d800000, /* lis r12,0 */
112 0x398c0000, /* addi r12,r12,0 */
113 0x800c0008, /* lwz r0,8(r12) */
114 0x7c0903a6, /* mtctr r0 */
115 0x818c0004, /* lwz r12,4(r12) */
116 0x4e800420, /* bctr */
117 0x60000000, /* nop */
118 0x60000000, /* nop */
120 static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
121 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
123 0x819e0008, /* lwz r12,8(r30) */
124 0x7d8903a6, /* mtctr r12 */
125 0x819e0004, /* lwz r12,4(r30) */
126 0x4e800420, /* bctr */
127 0x60000000, /* nop */
128 0x60000000, /* nop */
129 0x60000000, /* nop */
130 0x60000000, /* nop */
133 /* For executables, we have some additional relocations in
134 .rela.plt.unloaded, for the kernel loader. */
136 /* The number of non-JMP_SLOT relocations per PLT0 slot. */
137 #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
138 /* The number of relocations in the PLTResolve slot. */
139 #define VXWORKS_PLTRESOLVE_RELOCS 2
140 /* The number of relocations in the PLTResolve slot when when creating
142 #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
144 /* Some instructions. */
145 #define ADDIS_11_11 0x3d6b0000
146 #define ADDIS_11_30 0x3d7e0000
147 #define ADDIS_12_12 0x3d8c0000
148 #define ADDI_11_11 0x396b0000
149 #define ADD_0_11_11 0x7c0b5a14
150 #define ADD_3_12_2 0x7c6c1214
151 #define ADD_11_0_11 0x7d605a14
153 #define BCL_20_31 0x429f0005
154 #define BCTR 0x4e800420
155 #define BEQLR 0x4d820020
156 #define CMPWI_11_0 0x2c0b0000
157 #define LIS_11 0x3d600000
158 #define LIS_12 0x3d800000
159 #define LWZU_0_12 0x840c0000
160 #define LWZ_0_12 0x800c0000
161 #define LWZ_11_3 0x81630000
162 #define LWZ_11_11 0x816b0000
163 #define LWZ_11_30 0x817e0000
164 #define LWZ_12_3 0x81830000
165 #define LWZ_12_12 0x818c0000
166 #define MR_0_3 0x7c601b78
167 #define MR_3_0 0x7c030378
168 #define MFLR_0 0x7c0802a6
169 #define MFLR_12 0x7d8802a6
170 #define MTCTR_0 0x7c0903a6
171 #define MTCTR_11 0x7d6903a6
172 #define MTLR_0 0x7c0803a6
173 #define NOP 0x60000000
174 #define SUB_11_11_12 0x7d6c5850
176 /* Offset of tp and dtp pointers from start of TLS block. */
177 #define TP_OFFSET 0x7000
178 #define DTP_OFFSET 0x8000
180 /* The value of a defined global symbol. */
181 #define SYM_VAL(SYM) \
182 ((SYM)->root.u.def.section->output_section->vma \
183 + (SYM)->root.u.def.section->output_offset \
184 + (SYM)->root.u.def.value)
186 static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
188 static reloc_howto_type ppc_elf_howto_raw[] = {
189 /* This reloc does nothing. */
190 HOWTO (R_PPC_NONE, /* type */
192 2, /* size (0 = byte, 1 = short, 2 = long) */
194 FALSE, /* pc_relative */
196 complain_overflow_bitfield, /* complain_on_overflow */
197 bfd_elf_generic_reloc, /* special_function */
198 "R_PPC_NONE", /* name */
199 FALSE, /* partial_inplace */
202 FALSE), /* pcrel_offset */
204 /* A standard 32 bit relocation. */
205 HOWTO (R_PPC_ADDR32, /* type */
207 2, /* size (0 = byte, 1 = short, 2 = long) */
209 FALSE, /* pc_relative */
211 complain_overflow_bitfield, /* complain_on_overflow */
212 bfd_elf_generic_reloc, /* special_function */
213 "R_PPC_ADDR32", /* name */
214 FALSE, /* partial_inplace */
216 0xffffffff, /* dst_mask */
217 FALSE), /* pcrel_offset */
219 /* An absolute 26 bit branch; the lower two bits must be zero.
220 FIXME: we don't check that, we just clear them. */
221 HOWTO (R_PPC_ADDR24, /* type */
223 2, /* size (0 = byte, 1 = short, 2 = long) */
225 FALSE, /* pc_relative */
227 complain_overflow_bitfield, /* complain_on_overflow */
228 bfd_elf_generic_reloc, /* special_function */
229 "R_PPC_ADDR24", /* name */
230 FALSE, /* partial_inplace */
232 0x3fffffc, /* dst_mask */
233 FALSE), /* pcrel_offset */
235 /* A standard 16 bit relocation. */
236 HOWTO (R_PPC_ADDR16, /* type */
238 1, /* size (0 = byte, 1 = short, 2 = long) */
240 FALSE, /* pc_relative */
242 complain_overflow_bitfield, /* complain_on_overflow */
243 bfd_elf_generic_reloc, /* special_function */
244 "R_PPC_ADDR16", /* name */
245 FALSE, /* partial_inplace */
247 0xffff, /* dst_mask */
248 FALSE), /* pcrel_offset */
250 /* A 16 bit relocation without overflow. */
251 HOWTO (R_PPC_ADDR16_LO, /* type */
253 1, /* size (0 = byte, 1 = short, 2 = long) */
255 FALSE, /* pc_relative */
257 complain_overflow_dont,/* complain_on_overflow */
258 bfd_elf_generic_reloc, /* special_function */
259 "R_PPC_ADDR16_LO", /* name */
260 FALSE, /* partial_inplace */
262 0xffff, /* dst_mask */
263 FALSE), /* pcrel_offset */
265 /* The high order 16 bits of an address. */
266 HOWTO (R_PPC_ADDR16_HI, /* type */
268 1, /* size (0 = byte, 1 = short, 2 = long) */
270 FALSE, /* pc_relative */
272 complain_overflow_dont, /* complain_on_overflow */
273 bfd_elf_generic_reloc, /* special_function */
274 "R_PPC_ADDR16_HI", /* name */
275 FALSE, /* partial_inplace */
277 0xffff, /* dst_mask */
278 FALSE), /* pcrel_offset */
280 /* The high order 16 bits of an address, plus 1 if the contents of
281 the low 16 bits, treated as a signed number, is negative. */
282 HOWTO (R_PPC_ADDR16_HA, /* type */
284 1, /* size (0 = byte, 1 = short, 2 = long) */
286 FALSE, /* pc_relative */
288 complain_overflow_dont, /* complain_on_overflow */
289 ppc_elf_addr16_ha_reloc, /* special_function */
290 "R_PPC_ADDR16_HA", /* name */
291 FALSE, /* partial_inplace */
293 0xffff, /* dst_mask */
294 FALSE), /* pcrel_offset */
296 /* An absolute 16 bit branch; the lower two bits must be zero.
297 FIXME: we don't check that, we just clear them. */
298 HOWTO (R_PPC_ADDR14, /* type */
300 2, /* size (0 = byte, 1 = short, 2 = long) */
302 FALSE, /* pc_relative */
304 complain_overflow_bitfield, /* complain_on_overflow */
305 bfd_elf_generic_reloc, /* special_function */
306 "R_PPC_ADDR14", /* name */
307 FALSE, /* partial_inplace */
309 0xfffc, /* dst_mask */
310 FALSE), /* pcrel_offset */
312 /* An absolute 16 bit branch, for which bit 10 should be set to
313 indicate that the branch is expected to be taken. The lower two
314 bits must be zero. */
315 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
317 2, /* size (0 = byte, 1 = short, 2 = long) */
319 FALSE, /* pc_relative */
321 complain_overflow_bitfield, /* complain_on_overflow */
322 bfd_elf_generic_reloc, /* special_function */
323 "R_PPC_ADDR14_BRTAKEN",/* name */
324 FALSE, /* partial_inplace */
326 0xfffc, /* dst_mask */
327 FALSE), /* pcrel_offset */
329 /* An absolute 16 bit branch, for which bit 10 should be set to
330 indicate that the branch is not expected to be taken. The lower
331 two bits must be zero. */
332 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
334 2, /* size (0 = byte, 1 = short, 2 = long) */
336 FALSE, /* pc_relative */
338 complain_overflow_bitfield, /* complain_on_overflow */
339 bfd_elf_generic_reloc, /* special_function */
340 "R_PPC_ADDR14_BRNTAKEN",/* name */
341 FALSE, /* partial_inplace */
343 0xfffc, /* dst_mask */
344 FALSE), /* pcrel_offset */
346 /* A relative 26 bit branch; the lower two bits must be zero. */
347 HOWTO (R_PPC_REL24, /* type */
349 2, /* size (0 = byte, 1 = short, 2 = long) */
351 TRUE, /* pc_relative */
353 complain_overflow_signed, /* complain_on_overflow */
354 bfd_elf_generic_reloc, /* special_function */
355 "R_PPC_REL24", /* name */
356 FALSE, /* partial_inplace */
358 0x3fffffc, /* dst_mask */
359 TRUE), /* pcrel_offset */
361 /* A relative 16 bit branch; the lower two bits must be zero. */
362 HOWTO (R_PPC_REL14, /* type */
364 2, /* size (0 = byte, 1 = short, 2 = long) */
366 TRUE, /* pc_relative */
368 complain_overflow_signed, /* complain_on_overflow */
369 bfd_elf_generic_reloc, /* special_function */
370 "R_PPC_REL14", /* name */
371 FALSE, /* partial_inplace */
373 0xfffc, /* dst_mask */
374 TRUE), /* pcrel_offset */
376 /* A relative 16 bit branch. Bit 10 should be set to indicate that
377 the branch is expected to be taken. The lower two bits must be
379 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
381 2, /* size (0 = byte, 1 = short, 2 = long) */
383 TRUE, /* pc_relative */
385 complain_overflow_signed, /* complain_on_overflow */
386 bfd_elf_generic_reloc, /* special_function */
387 "R_PPC_REL14_BRTAKEN", /* name */
388 FALSE, /* partial_inplace */
390 0xfffc, /* dst_mask */
391 TRUE), /* pcrel_offset */
393 /* A relative 16 bit branch. Bit 10 should be set to indicate that
394 the branch is not expected to be taken. The lower two bits must
396 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
398 2, /* size (0 = byte, 1 = short, 2 = long) */
400 TRUE, /* pc_relative */
402 complain_overflow_signed, /* complain_on_overflow */
403 bfd_elf_generic_reloc, /* special_function */
404 "R_PPC_REL14_BRNTAKEN",/* name */
405 FALSE, /* partial_inplace */
407 0xfffc, /* dst_mask */
408 TRUE), /* pcrel_offset */
410 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
412 HOWTO (R_PPC_GOT16, /* type */
414 1, /* size (0 = byte, 1 = short, 2 = long) */
416 FALSE, /* pc_relative */
418 complain_overflow_signed, /* complain_on_overflow */
419 bfd_elf_generic_reloc, /* special_function */
420 "R_PPC_GOT16", /* name */
421 FALSE, /* partial_inplace */
423 0xffff, /* dst_mask */
424 FALSE), /* pcrel_offset */
426 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
428 HOWTO (R_PPC_GOT16_LO, /* type */
430 1, /* size (0 = byte, 1 = short, 2 = long) */
432 FALSE, /* pc_relative */
434 complain_overflow_dont, /* complain_on_overflow */
435 bfd_elf_generic_reloc, /* special_function */
436 "R_PPC_GOT16_LO", /* name */
437 FALSE, /* partial_inplace */
439 0xffff, /* dst_mask */
440 FALSE), /* pcrel_offset */
442 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
444 HOWTO (R_PPC_GOT16_HI, /* type */
446 1, /* size (0 = byte, 1 = short, 2 = long) */
448 FALSE, /* pc_relative */
450 complain_overflow_bitfield, /* complain_on_overflow */
451 bfd_elf_generic_reloc, /* special_function */
452 "R_PPC_GOT16_HI", /* name */
453 FALSE, /* partial_inplace */
455 0xffff, /* dst_mask */
456 FALSE), /* pcrel_offset */
458 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
460 HOWTO (R_PPC_GOT16_HA, /* type */
462 1, /* size (0 = byte, 1 = short, 2 = long) */
464 FALSE, /* pc_relative */
466 complain_overflow_bitfield, /* complain_on_overflow */
467 ppc_elf_addr16_ha_reloc, /* special_function */
468 "R_PPC_GOT16_HA", /* name */
469 FALSE, /* partial_inplace */
471 0xffff, /* dst_mask */
472 FALSE), /* pcrel_offset */
474 /* Like R_PPC_REL24, but referring to the procedure linkage table
475 entry for the symbol. */
476 HOWTO (R_PPC_PLTREL24, /* type */
478 2, /* size (0 = byte, 1 = short, 2 = long) */
480 TRUE, /* pc_relative */
482 complain_overflow_signed, /* complain_on_overflow */
483 bfd_elf_generic_reloc, /* special_function */
484 "R_PPC_PLTREL24", /* name */
485 FALSE, /* partial_inplace */
487 0x3fffffc, /* dst_mask */
488 TRUE), /* pcrel_offset */
490 /* This is used only by the dynamic linker. The symbol should exist
491 both in the object being run and in some shared library. The
492 dynamic linker copies the data addressed by the symbol from the
493 shared library into the object, because the object being
494 run has to have the data at some particular address. */
495 HOWTO (R_PPC_COPY, /* type */
497 2, /* size (0 = byte, 1 = short, 2 = long) */
499 FALSE, /* pc_relative */
501 complain_overflow_bitfield, /* complain_on_overflow */
502 bfd_elf_generic_reloc, /* special_function */
503 "R_PPC_COPY", /* name */
504 FALSE, /* partial_inplace */
507 FALSE), /* pcrel_offset */
509 /* Like R_PPC_ADDR32, but used when setting global offset table
511 HOWTO (R_PPC_GLOB_DAT, /* type */
513 2, /* size (0 = byte, 1 = short, 2 = long) */
515 FALSE, /* pc_relative */
517 complain_overflow_bitfield, /* complain_on_overflow */
518 bfd_elf_generic_reloc, /* special_function */
519 "R_PPC_GLOB_DAT", /* name */
520 FALSE, /* partial_inplace */
522 0xffffffff, /* dst_mask */
523 FALSE), /* pcrel_offset */
525 /* Marks a procedure linkage table entry for a symbol. */
526 HOWTO (R_PPC_JMP_SLOT, /* type */
528 2, /* size (0 = byte, 1 = short, 2 = long) */
530 FALSE, /* pc_relative */
532 complain_overflow_bitfield, /* complain_on_overflow */
533 bfd_elf_generic_reloc, /* special_function */
534 "R_PPC_JMP_SLOT", /* name */
535 FALSE, /* partial_inplace */
538 FALSE), /* pcrel_offset */
540 /* Used only by the dynamic linker. When the object is run, this
541 longword is set to the load address of the object, plus the
543 HOWTO (R_PPC_RELATIVE, /* type */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
547 FALSE, /* pc_relative */
549 complain_overflow_bitfield, /* complain_on_overflow */
550 bfd_elf_generic_reloc, /* special_function */
551 "R_PPC_RELATIVE", /* name */
552 FALSE, /* partial_inplace */
554 0xffffffff, /* dst_mask */
555 FALSE), /* pcrel_offset */
557 /* Like R_PPC_REL24, but uses the value of the symbol within the
558 object rather than the final value. Normally used for
559 _GLOBAL_OFFSET_TABLE_. */
560 HOWTO (R_PPC_LOCAL24PC, /* type */
562 2, /* size (0 = byte, 1 = short, 2 = long) */
564 TRUE, /* pc_relative */
566 complain_overflow_signed, /* complain_on_overflow */
567 bfd_elf_generic_reloc, /* special_function */
568 "R_PPC_LOCAL24PC", /* name */
569 FALSE, /* partial_inplace */
571 0x3fffffc, /* dst_mask */
572 TRUE), /* pcrel_offset */
574 /* Like R_PPC_ADDR32, but may be unaligned. */
575 HOWTO (R_PPC_UADDR32, /* type */
577 2, /* size (0 = byte, 1 = short, 2 = long) */
579 FALSE, /* pc_relative */
581 complain_overflow_bitfield, /* complain_on_overflow */
582 bfd_elf_generic_reloc, /* special_function */
583 "R_PPC_UADDR32", /* name */
584 FALSE, /* partial_inplace */
586 0xffffffff, /* dst_mask */
587 FALSE), /* pcrel_offset */
589 /* Like R_PPC_ADDR16, but may be unaligned. */
590 HOWTO (R_PPC_UADDR16, /* type */
592 1, /* size (0 = byte, 1 = short, 2 = long) */
594 FALSE, /* pc_relative */
596 complain_overflow_bitfield, /* complain_on_overflow */
597 bfd_elf_generic_reloc, /* special_function */
598 "R_PPC_UADDR16", /* name */
599 FALSE, /* partial_inplace */
601 0xffff, /* dst_mask */
602 FALSE), /* pcrel_offset */
604 /* 32-bit PC relative */
605 HOWTO (R_PPC_REL32, /* type */
607 2, /* size (0 = byte, 1 = short, 2 = long) */
609 TRUE, /* pc_relative */
611 complain_overflow_bitfield, /* complain_on_overflow */
612 bfd_elf_generic_reloc, /* special_function */
613 "R_PPC_REL32", /* name */
614 FALSE, /* partial_inplace */
616 0xffffffff, /* dst_mask */
617 TRUE), /* pcrel_offset */
619 /* 32-bit relocation to the symbol's procedure linkage table.
620 FIXME: not supported. */
621 HOWTO (R_PPC_PLT32, /* type */
623 2, /* size (0 = byte, 1 = short, 2 = long) */
625 FALSE, /* pc_relative */
627 complain_overflow_bitfield, /* complain_on_overflow */
628 bfd_elf_generic_reloc, /* special_function */
629 "R_PPC_PLT32", /* name */
630 FALSE, /* partial_inplace */
633 FALSE), /* pcrel_offset */
635 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
636 FIXME: not supported. */
637 HOWTO (R_PPC_PLTREL32, /* type */
639 2, /* size (0 = byte, 1 = short, 2 = long) */
641 TRUE, /* pc_relative */
643 complain_overflow_bitfield, /* complain_on_overflow */
644 bfd_elf_generic_reloc, /* special_function */
645 "R_PPC_PLTREL32", /* name */
646 FALSE, /* partial_inplace */
649 TRUE), /* pcrel_offset */
651 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
653 HOWTO (R_PPC_PLT16_LO, /* type */
655 1, /* size (0 = byte, 1 = short, 2 = long) */
657 FALSE, /* pc_relative */
659 complain_overflow_dont, /* complain_on_overflow */
660 bfd_elf_generic_reloc, /* special_function */
661 "R_PPC_PLT16_LO", /* name */
662 FALSE, /* partial_inplace */
664 0xffff, /* dst_mask */
665 FALSE), /* pcrel_offset */
667 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
669 HOWTO (R_PPC_PLT16_HI, /* type */
671 1, /* size (0 = byte, 1 = short, 2 = long) */
673 FALSE, /* pc_relative */
675 complain_overflow_bitfield, /* complain_on_overflow */
676 bfd_elf_generic_reloc, /* special_function */
677 "R_PPC_PLT16_HI", /* name */
678 FALSE, /* partial_inplace */
680 0xffff, /* dst_mask */
681 FALSE), /* pcrel_offset */
683 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
685 HOWTO (R_PPC_PLT16_HA, /* type */
687 1, /* size (0 = byte, 1 = short, 2 = long) */
689 FALSE, /* pc_relative */
691 complain_overflow_bitfield, /* complain_on_overflow */
692 ppc_elf_addr16_ha_reloc, /* special_function */
693 "R_PPC_PLT16_HA", /* name */
694 FALSE, /* partial_inplace */
696 0xffff, /* dst_mask */
697 FALSE), /* pcrel_offset */
699 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
701 HOWTO (R_PPC_SDAREL16, /* type */
703 1, /* size (0 = byte, 1 = short, 2 = long) */
705 FALSE, /* pc_relative */
707 complain_overflow_signed, /* complain_on_overflow */
708 bfd_elf_generic_reloc, /* special_function */
709 "R_PPC_SDAREL16", /* name */
710 FALSE, /* partial_inplace */
712 0xffff, /* dst_mask */
713 FALSE), /* pcrel_offset */
715 /* 16-bit section relative relocation. */
716 HOWTO (R_PPC_SECTOFF, /* type */
718 1, /* size (0 = byte, 1 = short, 2 = long) */
720 FALSE, /* pc_relative */
722 complain_overflow_bitfield, /* complain_on_overflow */
723 bfd_elf_generic_reloc, /* special_function */
724 "R_PPC_SECTOFF", /* name */
725 FALSE, /* partial_inplace */
727 0xffff, /* dst_mask */
728 FALSE), /* pcrel_offset */
730 /* 16-bit lower half section relative relocation. */
731 HOWTO (R_PPC_SECTOFF_LO, /* type */
733 1, /* size (0 = byte, 1 = short, 2 = long) */
735 FALSE, /* pc_relative */
737 complain_overflow_dont, /* complain_on_overflow */
738 bfd_elf_generic_reloc, /* special_function */
739 "R_PPC_SECTOFF_LO", /* name */
740 FALSE, /* partial_inplace */
742 0xffff, /* dst_mask */
743 FALSE), /* pcrel_offset */
745 /* 16-bit upper half section relative relocation. */
746 HOWTO (R_PPC_SECTOFF_HI, /* type */
748 1, /* size (0 = byte, 1 = short, 2 = long) */
750 FALSE, /* pc_relative */
752 complain_overflow_bitfield, /* complain_on_overflow */
753 bfd_elf_generic_reloc, /* special_function */
754 "R_PPC_SECTOFF_HI", /* name */
755 FALSE, /* partial_inplace */
757 0xffff, /* dst_mask */
758 FALSE), /* pcrel_offset */
760 /* 16-bit upper half adjusted section relative relocation. */
761 HOWTO (R_PPC_SECTOFF_HA, /* type */
763 1, /* size (0 = byte, 1 = short, 2 = long) */
765 FALSE, /* pc_relative */
767 complain_overflow_bitfield, /* complain_on_overflow */
768 ppc_elf_addr16_ha_reloc, /* special_function */
769 "R_PPC_SECTOFF_HA", /* name */
770 FALSE, /* partial_inplace */
772 0xffff, /* dst_mask */
773 FALSE), /* pcrel_offset */
775 /* Marker relocs for TLS. */
778 2, /* size (0 = byte, 1 = short, 2 = long) */
780 FALSE, /* pc_relative */
782 complain_overflow_dont, /* complain_on_overflow */
783 bfd_elf_generic_reloc, /* special_function */
784 "R_PPC_TLS", /* name */
785 FALSE, /* partial_inplace */
788 FALSE), /* pcrel_offset */
792 2, /* size (0 = byte, 1 = short, 2 = long) */
794 FALSE, /* pc_relative */
796 complain_overflow_dont, /* complain_on_overflow */
797 bfd_elf_generic_reloc, /* special_function */
798 "R_PPC_TLSGD", /* name */
799 FALSE, /* partial_inplace */
802 FALSE), /* pcrel_offset */
806 2, /* size (0 = byte, 1 = short, 2 = long) */
808 FALSE, /* pc_relative */
810 complain_overflow_dont, /* complain_on_overflow */
811 bfd_elf_generic_reloc, /* special_function */
812 "R_PPC_TLSLD", /* name */
813 FALSE, /* partial_inplace */
816 FALSE), /* pcrel_offset */
818 /* Computes the load module index of the load module that contains the
819 definition of its TLS sym. */
820 HOWTO (R_PPC_DTPMOD32,
822 2, /* size (0 = byte, 1 = short, 2 = long) */
824 FALSE, /* pc_relative */
826 complain_overflow_dont, /* complain_on_overflow */
827 ppc_elf_unhandled_reloc, /* special_function */
828 "R_PPC_DTPMOD32", /* name */
829 FALSE, /* partial_inplace */
831 0xffffffff, /* dst_mask */
832 FALSE), /* pcrel_offset */
834 /* Computes a dtv-relative displacement, the difference between the value
835 of sym+add and the base address of the thread-local storage block that
836 contains the definition of sym, minus 0x8000. */
837 HOWTO (R_PPC_DTPREL32,
839 2, /* size (0 = byte, 1 = short, 2 = long) */
841 FALSE, /* pc_relative */
843 complain_overflow_dont, /* complain_on_overflow */
844 ppc_elf_unhandled_reloc, /* special_function */
845 "R_PPC_DTPREL32", /* name */
846 FALSE, /* partial_inplace */
848 0xffffffff, /* dst_mask */
849 FALSE), /* pcrel_offset */
851 /* A 16 bit dtprel reloc. */
852 HOWTO (R_PPC_DTPREL16,
854 1, /* size (0 = byte, 1 = short, 2 = long) */
856 FALSE, /* pc_relative */
858 complain_overflow_signed, /* complain_on_overflow */
859 ppc_elf_unhandled_reloc, /* special_function */
860 "R_PPC_DTPREL16", /* name */
861 FALSE, /* partial_inplace */
863 0xffff, /* dst_mask */
864 FALSE), /* pcrel_offset */
866 /* Like DTPREL16, but no overflow. */
867 HOWTO (R_PPC_DTPREL16_LO,
869 1, /* size (0 = byte, 1 = short, 2 = long) */
871 FALSE, /* pc_relative */
873 complain_overflow_dont, /* complain_on_overflow */
874 ppc_elf_unhandled_reloc, /* special_function */
875 "R_PPC_DTPREL16_LO", /* name */
876 FALSE, /* partial_inplace */
878 0xffff, /* dst_mask */
879 FALSE), /* pcrel_offset */
881 /* Like DTPREL16_LO, but next higher group of 16 bits. */
882 HOWTO (R_PPC_DTPREL16_HI,
884 1, /* size (0 = byte, 1 = short, 2 = long) */
886 FALSE, /* pc_relative */
888 complain_overflow_dont, /* complain_on_overflow */
889 ppc_elf_unhandled_reloc, /* special_function */
890 "R_PPC_DTPREL16_HI", /* name */
891 FALSE, /* partial_inplace */
893 0xffff, /* dst_mask */
894 FALSE), /* pcrel_offset */
896 /* Like DTPREL16_HI, but adjust for low 16 bits. */
897 HOWTO (R_PPC_DTPREL16_HA,
899 1, /* size (0 = byte, 1 = short, 2 = long) */
901 FALSE, /* pc_relative */
903 complain_overflow_dont, /* complain_on_overflow */
904 ppc_elf_unhandled_reloc, /* special_function */
905 "R_PPC_DTPREL16_HA", /* name */
906 FALSE, /* partial_inplace */
908 0xffff, /* dst_mask */
909 FALSE), /* pcrel_offset */
911 /* Computes a tp-relative displacement, the difference between the value of
912 sym+add and the value of the thread pointer (r13). */
913 HOWTO (R_PPC_TPREL32,
915 2, /* size (0 = byte, 1 = short, 2 = long) */
917 FALSE, /* pc_relative */
919 complain_overflow_dont, /* complain_on_overflow */
920 ppc_elf_unhandled_reloc, /* special_function */
921 "R_PPC_TPREL32", /* name */
922 FALSE, /* partial_inplace */
924 0xffffffff, /* dst_mask */
925 FALSE), /* pcrel_offset */
927 /* A 16 bit tprel reloc. */
928 HOWTO (R_PPC_TPREL16,
930 1, /* size (0 = byte, 1 = short, 2 = long) */
932 FALSE, /* pc_relative */
934 complain_overflow_signed, /* complain_on_overflow */
935 ppc_elf_unhandled_reloc, /* special_function */
936 "R_PPC_TPREL16", /* name */
937 FALSE, /* partial_inplace */
939 0xffff, /* dst_mask */
940 FALSE), /* pcrel_offset */
942 /* Like TPREL16, but no overflow. */
943 HOWTO (R_PPC_TPREL16_LO,
945 1, /* size (0 = byte, 1 = short, 2 = long) */
947 FALSE, /* pc_relative */
949 complain_overflow_dont, /* complain_on_overflow */
950 ppc_elf_unhandled_reloc, /* special_function */
951 "R_PPC_TPREL16_LO", /* name */
952 FALSE, /* partial_inplace */
954 0xffff, /* dst_mask */
955 FALSE), /* pcrel_offset */
957 /* Like TPREL16_LO, but next higher group of 16 bits. */
958 HOWTO (R_PPC_TPREL16_HI,
960 1, /* size (0 = byte, 1 = short, 2 = long) */
962 FALSE, /* pc_relative */
964 complain_overflow_dont, /* complain_on_overflow */
965 ppc_elf_unhandled_reloc, /* special_function */
966 "R_PPC_TPREL16_HI", /* name */
967 FALSE, /* partial_inplace */
969 0xffff, /* dst_mask */
970 FALSE), /* pcrel_offset */
972 /* Like TPREL16_HI, but adjust for low 16 bits. */
973 HOWTO (R_PPC_TPREL16_HA,
975 1, /* size (0 = byte, 1 = short, 2 = long) */
977 FALSE, /* pc_relative */
979 complain_overflow_dont, /* complain_on_overflow */
980 ppc_elf_unhandled_reloc, /* special_function */
981 "R_PPC_TPREL16_HA", /* name */
982 FALSE, /* partial_inplace */
984 0xffff, /* dst_mask */
985 FALSE), /* pcrel_offset */
987 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
988 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
989 to the first entry. */
990 HOWTO (R_PPC_GOT_TLSGD16,
992 1, /* size (0 = byte, 1 = short, 2 = long) */
994 FALSE, /* pc_relative */
996 complain_overflow_signed, /* complain_on_overflow */
997 ppc_elf_unhandled_reloc, /* special_function */
998 "R_PPC_GOT_TLSGD16", /* name */
999 FALSE, /* partial_inplace */
1001 0xffff, /* dst_mask */
1002 FALSE), /* pcrel_offset */
1004 /* Like GOT_TLSGD16, but no overflow. */
1005 HOWTO (R_PPC_GOT_TLSGD16_LO,
1007 1, /* size (0 = byte, 1 = short, 2 = long) */
1009 FALSE, /* pc_relative */
1011 complain_overflow_dont, /* complain_on_overflow */
1012 ppc_elf_unhandled_reloc, /* special_function */
1013 "R_PPC_GOT_TLSGD16_LO", /* name */
1014 FALSE, /* partial_inplace */
1016 0xffff, /* dst_mask */
1017 FALSE), /* pcrel_offset */
1019 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1020 HOWTO (R_PPC_GOT_TLSGD16_HI,
1021 16, /* rightshift */
1022 1, /* size (0 = byte, 1 = short, 2 = long) */
1024 FALSE, /* pc_relative */
1026 complain_overflow_dont, /* complain_on_overflow */
1027 ppc_elf_unhandled_reloc, /* special_function */
1028 "R_PPC_GOT_TLSGD16_HI", /* name */
1029 FALSE, /* partial_inplace */
1031 0xffff, /* dst_mask */
1032 FALSE), /* pcrel_offset */
1034 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1035 HOWTO (R_PPC_GOT_TLSGD16_HA,
1036 16, /* rightshift */
1037 1, /* size (0 = byte, 1 = short, 2 = long) */
1039 FALSE, /* pc_relative */
1041 complain_overflow_dont, /* complain_on_overflow */
1042 ppc_elf_unhandled_reloc, /* special_function */
1043 "R_PPC_GOT_TLSGD16_HA", /* name */
1044 FALSE, /* partial_inplace */
1046 0xffff, /* dst_mask */
1047 FALSE), /* pcrel_offset */
1049 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1050 with values (sym+add)@dtpmod and zero, and computes the offset to the
1052 HOWTO (R_PPC_GOT_TLSLD16,
1054 1, /* size (0 = byte, 1 = short, 2 = long) */
1056 FALSE, /* pc_relative */
1058 complain_overflow_signed, /* complain_on_overflow */
1059 ppc_elf_unhandled_reloc, /* special_function */
1060 "R_PPC_GOT_TLSLD16", /* name */
1061 FALSE, /* partial_inplace */
1063 0xffff, /* dst_mask */
1064 FALSE), /* pcrel_offset */
1066 /* Like GOT_TLSLD16, but no overflow. */
1067 HOWTO (R_PPC_GOT_TLSLD16_LO,
1069 1, /* size (0 = byte, 1 = short, 2 = long) */
1071 FALSE, /* pc_relative */
1073 complain_overflow_dont, /* complain_on_overflow */
1074 ppc_elf_unhandled_reloc, /* special_function */
1075 "R_PPC_GOT_TLSLD16_LO", /* name */
1076 FALSE, /* partial_inplace */
1078 0xffff, /* dst_mask */
1079 FALSE), /* pcrel_offset */
1081 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1082 HOWTO (R_PPC_GOT_TLSLD16_HI,
1083 16, /* rightshift */
1084 1, /* size (0 = byte, 1 = short, 2 = long) */
1086 FALSE, /* pc_relative */
1088 complain_overflow_dont, /* complain_on_overflow */
1089 ppc_elf_unhandled_reloc, /* special_function */
1090 "R_PPC_GOT_TLSLD16_HI", /* name */
1091 FALSE, /* partial_inplace */
1093 0xffff, /* dst_mask */
1094 FALSE), /* pcrel_offset */
1096 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1097 HOWTO (R_PPC_GOT_TLSLD16_HA,
1098 16, /* rightshift */
1099 1, /* size (0 = byte, 1 = short, 2 = long) */
1101 FALSE, /* pc_relative */
1103 complain_overflow_dont, /* complain_on_overflow */
1104 ppc_elf_unhandled_reloc, /* special_function */
1105 "R_PPC_GOT_TLSLD16_HA", /* name */
1106 FALSE, /* partial_inplace */
1108 0xffff, /* dst_mask */
1109 FALSE), /* pcrel_offset */
1111 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1112 the offset to the entry. */
1113 HOWTO (R_PPC_GOT_DTPREL16,
1115 1, /* size (0 = byte, 1 = short, 2 = long) */
1117 FALSE, /* pc_relative */
1119 complain_overflow_signed, /* complain_on_overflow */
1120 ppc_elf_unhandled_reloc, /* special_function */
1121 "R_PPC_GOT_DTPREL16", /* name */
1122 FALSE, /* partial_inplace */
1124 0xffff, /* dst_mask */
1125 FALSE), /* pcrel_offset */
1127 /* Like GOT_DTPREL16, but no overflow. */
1128 HOWTO (R_PPC_GOT_DTPREL16_LO,
1130 1, /* size (0 = byte, 1 = short, 2 = long) */
1132 FALSE, /* pc_relative */
1134 complain_overflow_dont, /* complain_on_overflow */
1135 ppc_elf_unhandled_reloc, /* special_function */
1136 "R_PPC_GOT_DTPREL16_LO", /* name */
1137 FALSE, /* partial_inplace */
1139 0xffff, /* dst_mask */
1140 FALSE), /* pcrel_offset */
1142 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1143 HOWTO (R_PPC_GOT_DTPREL16_HI,
1144 16, /* rightshift */
1145 1, /* size (0 = byte, 1 = short, 2 = long) */
1147 FALSE, /* pc_relative */
1149 complain_overflow_dont, /* complain_on_overflow */
1150 ppc_elf_unhandled_reloc, /* special_function */
1151 "R_PPC_GOT_DTPREL16_HI", /* name */
1152 FALSE, /* partial_inplace */
1154 0xffff, /* dst_mask */
1155 FALSE), /* pcrel_offset */
1157 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1158 HOWTO (R_PPC_GOT_DTPREL16_HA,
1159 16, /* rightshift */
1160 1, /* size (0 = byte, 1 = short, 2 = long) */
1162 FALSE, /* pc_relative */
1164 complain_overflow_dont, /* complain_on_overflow */
1165 ppc_elf_unhandled_reloc, /* special_function */
1166 "R_PPC_GOT_DTPREL16_HA", /* name */
1167 FALSE, /* partial_inplace */
1169 0xffff, /* dst_mask */
1170 FALSE), /* pcrel_offset */
1172 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1173 offset to the entry. */
1174 HOWTO (R_PPC_GOT_TPREL16,
1176 1, /* size (0 = byte, 1 = short, 2 = long) */
1178 FALSE, /* pc_relative */
1180 complain_overflow_signed, /* complain_on_overflow */
1181 ppc_elf_unhandled_reloc, /* special_function */
1182 "R_PPC_GOT_TPREL16", /* name */
1183 FALSE, /* partial_inplace */
1185 0xffff, /* dst_mask */
1186 FALSE), /* pcrel_offset */
1188 /* Like GOT_TPREL16, but no overflow. */
1189 HOWTO (R_PPC_GOT_TPREL16_LO,
1191 1, /* size (0 = byte, 1 = short, 2 = long) */
1193 FALSE, /* pc_relative */
1195 complain_overflow_dont, /* complain_on_overflow */
1196 ppc_elf_unhandled_reloc, /* special_function */
1197 "R_PPC_GOT_TPREL16_LO", /* name */
1198 FALSE, /* partial_inplace */
1200 0xffff, /* dst_mask */
1201 FALSE), /* pcrel_offset */
1203 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1204 HOWTO (R_PPC_GOT_TPREL16_HI,
1205 16, /* rightshift */
1206 1, /* size (0 = byte, 1 = short, 2 = long) */
1208 FALSE, /* pc_relative */
1210 complain_overflow_dont, /* complain_on_overflow */
1211 ppc_elf_unhandled_reloc, /* special_function */
1212 "R_PPC_GOT_TPREL16_HI", /* name */
1213 FALSE, /* partial_inplace */
1215 0xffff, /* dst_mask */
1216 FALSE), /* pcrel_offset */
1218 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1219 HOWTO (R_PPC_GOT_TPREL16_HA,
1220 16, /* rightshift */
1221 1, /* size (0 = byte, 1 = short, 2 = long) */
1223 FALSE, /* pc_relative */
1225 complain_overflow_dont, /* complain_on_overflow */
1226 ppc_elf_unhandled_reloc, /* special_function */
1227 "R_PPC_GOT_TPREL16_HA", /* name */
1228 FALSE, /* partial_inplace */
1230 0xffff, /* dst_mask */
1231 FALSE), /* pcrel_offset */
1233 /* The remaining relocs are from the Embedded ELF ABI, and are not
1234 in the SVR4 ELF ABI. */
1236 /* 32 bit value resulting from the addend minus the symbol. */
1237 HOWTO (R_PPC_EMB_NADDR32, /* type */
1239 2, /* size (0 = byte, 1 = short, 2 = long) */
1241 FALSE, /* pc_relative */
1243 complain_overflow_bitfield, /* complain_on_overflow */
1244 bfd_elf_generic_reloc, /* special_function */
1245 "R_PPC_EMB_NADDR32", /* name */
1246 FALSE, /* partial_inplace */
1248 0xffffffff, /* dst_mask */
1249 FALSE), /* pcrel_offset */
1251 /* 16 bit value resulting from the addend minus the symbol. */
1252 HOWTO (R_PPC_EMB_NADDR16, /* type */
1254 1, /* size (0 = byte, 1 = short, 2 = long) */
1256 FALSE, /* pc_relative */
1258 complain_overflow_bitfield, /* complain_on_overflow */
1259 bfd_elf_generic_reloc, /* special_function */
1260 "R_PPC_EMB_NADDR16", /* name */
1261 FALSE, /* partial_inplace */
1263 0xffff, /* dst_mask */
1264 FALSE), /* pcrel_offset */
1266 /* 16 bit value resulting from the addend minus the symbol. */
1267 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1269 1, /* size (0 = byte, 1 = short, 2 = long) */
1271 FALSE, /* pc_relative */
1273 complain_overflow_dont,/* complain_on_overflow */
1274 bfd_elf_generic_reloc, /* special_function */
1275 "R_PPC_EMB_ADDR16_LO", /* name */
1276 FALSE, /* partial_inplace */
1278 0xffff, /* dst_mask */
1279 FALSE), /* pcrel_offset */
1281 /* The high order 16 bits of the addend minus the symbol. */
1282 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1283 16, /* rightshift */
1284 1, /* size (0 = byte, 1 = short, 2 = long) */
1286 FALSE, /* pc_relative */
1288 complain_overflow_dont, /* complain_on_overflow */
1289 bfd_elf_generic_reloc, /* special_function */
1290 "R_PPC_EMB_NADDR16_HI", /* name */
1291 FALSE, /* partial_inplace */
1293 0xffff, /* dst_mask */
1294 FALSE), /* pcrel_offset */
1296 /* The high order 16 bits of the result of the addend minus the address,
1297 plus 1 if the contents of the low 16 bits, treated as a signed number,
1299 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1300 16, /* rightshift */
1301 1, /* size (0 = byte, 1 = short, 2 = long) */
1303 FALSE, /* pc_relative */
1305 complain_overflow_dont, /* complain_on_overflow */
1306 ppc_elf_addr16_ha_reloc, /* special_function */
1307 "R_PPC_EMB_NADDR16_HA", /* name */
1308 FALSE, /* partial_inplace */
1310 0xffff, /* dst_mask */
1311 FALSE), /* pcrel_offset */
1313 /* 16 bit value resulting from allocating a 4 byte word to hold an
1314 address in the .sdata section, and returning the offset from
1315 _SDA_BASE_ for that relocation. */
1316 HOWTO (R_PPC_EMB_SDAI16, /* type */
1318 1, /* size (0 = byte, 1 = short, 2 = long) */
1320 FALSE, /* pc_relative */
1322 complain_overflow_signed, /* complain_on_overflow */
1323 bfd_elf_generic_reloc, /* special_function */
1324 "R_PPC_EMB_SDAI16", /* name */
1325 FALSE, /* partial_inplace */
1327 0xffff, /* dst_mask */
1328 FALSE), /* pcrel_offset */
1330 /* 16 bit value resulting from allocating a 4 byte word to hold an
1331 address in the .sdata2 section, and returning the offset from
1332 _SDA2_BASE_ for that relocation. */
1333 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1335 1, /* size (0 = byte, 1 = short, 2 = long) */
1337 FALSE, /* pc_relative */
1339 complain_overflow_signed, /* complain_on_overflow */
1340 bfd_elf_generic_reloc, /* special_function */
1341 "R_PPC_EMB_SDA2I16", /* name */
1342 FALSE, /* partial_inplace */
1344 0xffff, /* dst_mask */
1345 FALSE), /* pcrel_offset */
1347 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1348 small data items. */
1349 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1351 1, /* size (0 = byte, 1 = short, 2 = long) */
1353 FALSE, /* pc_relative */
1355 complain_overflow_signed, /* complain_on_overflow */
1356 bfd_elf_generic_reloc, /* special_function */
1357 "R_PPC_EMB_SDA2REL", /* name */
1358 FALSE, /* partial_inplace */
1360 0xffff, /* dst_mask */
1361 FALSE), /* pcrel_offset */
1363 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1364 signed offset from the appropriate base, and filling in the register
1365 field with the appropriate register (0, 2, or 13). */
1366 HOWTO (R_PPC_EMB_SDA21, /* type */
1368 2, /* size (0 = byte, 1 = short, 2 = long) */
1370 FALSE, /* pc_relative */
1372 complain_overflow_signed, /* complain_on_overflow */
1373 bfd_elf_generic_reloc, /* special_function */
1374 "R_PPC_EMB_SDA21", /* name */
1375 FALSE, /* partial_inplace */
1377 0xffff, /* dst_mask */
1378 FALSE), /* pcrel_offset */
1380 /* Relocation not handled: R_PPC_EMB_MRKREF */
1381 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1382 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1383 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1384 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1385 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1387 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1388 in the 16 bit signed offset from the appropriate base, and filling in the
1389 register field with the appropriate register (0, 2, or 13). */
1390 HOWTO (R_PPC_EMB_RELSDA, /* type */
1392 1, /* size (0 = byte, 1 = short, 2 = long) */
1394 FALSE, /* pc_relative */
1396 complain_overflow_signed, /* complain_on_overflow */
1397 bfd_elf_generic_reloc, /* special_function */
1398 "R_PPC_EMB_RELSDA", /* name */
1399 FALSE, /* partial_inplace */
1401 0xffff, /* dst_mask */
1402 FALSE), /* pcrel_offset */
1404 /* A relative 8 bit branch. */
1405 HOWTO (R_PPC_VLE_REL8, /* type */
1407 1, /* size (0 = byte, 1 = short, 2 = long) */
1409 TRUE, /* pc_relative */
1411 complain_overflow_signed, /* complain_on_overflow */
1412 bfd_elf_generic_reloc, /* special_function */
1413 "R_PPC_VLE_REL8", /* name */
1414 FALSE, /* partial_inplace */
1416 0xff, /* dst_mask */
1417 TRUE), /* pcrel_offset */
1419 /* A relative 15 bit branch. */
1420 HOWTO (R_PPC_VLE_REL15, /* type */
1422 2, /* size (0 = byte, 1 = short, 2 = long) */
1424 TRUE, /* pc_relative */
1426 complain_overflow_signed, /* complain_on_overflow */
1427 bfd_elf_generic_reloc, /* special_function */
1428 "R_PPC_VLE_REL15", /* name */
1429 FALSE, /* partial_inplace */
1431 0xfe, /* dst_mask */
1432 TRUE), /* pcrel_offset */
1434 /* A relative 24 bit branch. */
1435 HOWTO (R_PPC_VLE_REL24, /* type */
1437 2, /* size (0 = byte, 1 = short, 2 = long) */
1439 TRUE, /* pc_relative */
1441 complain_overflow_signed, /* complain_on_overflow */
1442 bfd_elf_generic_reloc, /* special_function */
1443 "R_PPC_VLE_REL24", /* name */
1444 FALSE, /* partial_inplace */
1446 0x1fffffe, /* dst_mask */
1447 TRUE), /* pcrel_offset */
1449 /* The 16 LSBS in split16a format. */
1450 HOWTO (R_PPC_VLE_LO16A, /* type */
1452 2, /* size (0 = byte, 1 = short, 2 = long) */
1454 FALSE, /* pc_relative */
1456 complain_overflow_bitfield, /* complain_on_overflow */
1457 bfd_elf_generic_reloc, /* special_function */
1458 "R_PPC_VLE_LO16A", /* name */
1459 FALSE, /* partial_inplace */
1461 0x1f007ff, /* dst_mask */
1462 FALSE), /* pcrel_offset */
1464 /* The 16 LSBS in split16d format. */
1465 HOWTO (R_PPC_VLE_LO16D, /* type */
1467 2, /* size (0 = byte, 1 = short, 2 = long) */
1469 FALSE, /* pc_relative */
1471 complain_overflow_bitfield, /* complain_on_overflow */
1472 bfd_elf_generic_reloc, /* special_function */
1473 "R_PPC_VLE_LO16D", /* name */
1474 FALSE, /* partial_inplace */
1476 0x1f07ff, /* dst_mask */
1477 FALSE), /* pcrel_offset */
1479 /* Bits 16-31 split16a format. */
1480 HOWTO (R_PPC_VLE_HI16A, /* type */
1482 2, /* size (0 = byte, 1 = short, 2 = long) */
1484 FALSE, /* pc_relative */
1486 complain_overflow_bitfield, /* complain_on_overflow */
1487 bfd_elf_generic_reloc, /* special_function */
1488 "R_PPC_VLE_HI16A", /* name */
1489 FALSE, /* partial_inplace */
1491 0x1f007ff, /* dst_mask */
1492 FALSE), /* pcrel_offset */
1494 /* Bits 16-31 split16d format. */
1495 HOWTO (R_PPC_VLE_HI16D, /* type */
1497 2, /* size (0 = byte, 1 = short, 2 = long) */
1499 FALSE, /* pc_relative */
1501 complain_overflow_bitfield, /* complain_on_overflow */
1502 bfd_elf_generic_reloc, /* special_function */
1503 "R_PPC_VLE_HI16D", /* name */
1504 FALSE, /* partial_inplace */
1506 0x1f07ff, /* dst_mask */
1507 FALSE), /* pcrel_offset */
1509 /* Bits 16-31 (High Adjusted) in split16a format. */
1510 HOWTO (R_PPC_VLE_HA16A, /* type */
1512 2, /* size (0 = byte, 1 = short, 2 = long) */
1514 FALSE, /* pc_relative */
1516 complain_overflow_bitfield, /* complain_on_overflow */
1517 bfd_elf_generic_reloc, /* special_function */
1518 "R_PPC_VLE_HA16A", /* name */
1519 FALSE, /* partial_inplace */
1521 0x1f007ff, /* dst_mask */
1522 FALSE), /* pcrel_offset */
1524 /* Bits 16-31 (High Adjusted) in split16d format. */
1525 HOWTO (R_PPC_VLE_HA16D, /* type */
1527 2, /* size (0 = byte, 1 = short, 2 = long) */
1529 FALSE, /* pc_relative */
1531 complain_overflow_bitfield, /* complain_on_overflow */
1532 bfd_elf_generic_reloc, /* special_function */
1533 "R_PPC_VLE_HA16D", /* name */
1534 FALSE, /* partial_inplace */
1536 0x1f07ff, /* dst_mask */
1537 FALSE), /* pcrel_offset */
1539 /* This reloc does nothing. */
1540 HOWTO (R_PPC_VLE_SDA21, /* type */
1542 2, /* size (0 = byte, 1 = short, 2 = long) */
1544 FALSE, /* pc_relative */
1546 complain_overflow_bitfield, /* complain_on_overflow */
1547 bfd_elf_generic_reloc, /* special_function */
1548 "R_PPC_VLE_SDA21", /* name */
1549 FALSE, /* partial_inplace */
1551 0xffff, /* dst_mask */
1552 FALSE), /* pcrel_offset */
1554 /* This reloc does nothing. */
1555 HOWTO (R_PPC_VLE_SDA21_LO, /* type */
1557 2, /* size (0 = byte, 1 = short, 2 = long) */
1559 FALSE, /* pc_relative */
1561 complain_overflow_bitfield, /* complain_on_overflow */
1562 bfd_elf_generic_reloc, /* special_function */
1563 "R_PPC_VLE_SDA21_LO", /* name */
1564 FALSE, /* partial_inplace */
1567 FALSE), /* pcrel_offset */
1569 /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */
1570 HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
1572 2, /* size (0 = byte, 1 = short, 2 = long) */
1574 FALSE, /* pc_relative */
1576 complain_overflow_bitfield, /* complain_on_overflow */
1577 bfd_elf_generic_reloc, /* special_function */
1578 "R_PPC_VLE_SDAREL_LO16A", /* name */
1579 FALSE, /* partial_inplace */
1581 0x1f007ff, /* dst_mask */
1582 FALSE), /* pcrel_offset */
1584 /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */
1585 /* This reloc does nothing. */
1586 HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
1588 2, /* size (0 = byte, 1 = short, 2 = long) */
1590 FALSE, /* pc_relative */
1592 complain_overflow_bitfield, /* complain_on_overflow */
1593 bfd_elf_generic_reloc, /* special_function */
1594 "R_PPC_VLE_SDAREL_LO16D", /* name */
1595 FALSE, /* partial_inplace */
1597 0x1f07ff, /* dst_mask */
1598 FALSE), /* pcrel_offset */
1600 /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */
1601 HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
1603 2, /* size (0 = byte, 1 = short, 2 = long) */
1605 FALSE, /* pc_relative */
1607 complain_overflow_bitfield, /* complain_on_overflow */
1608 bfd_elf_generic_reloc, /* special_function */
1609 "R_PPC_VLE_SDAREL_HI16A", /* name */
1610 FALSE, /* partial_inplace */
1612 0x1f007ff, /* dst_mask */
1613 FALSE), /* pcrel_offset */
1615 /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */
1616 HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
1618 2, /* size (0 = byte, 1 = short, 2 = long) */
1620 FALSE, /* pc_relative */
1622 complain_overflow_bitfield, /* complain_on_overflow */
1623 bfd_elf_generic_reloc, /* special_function */
1624 "R_PPC_VLE_SDAREL_HI16D", /* name */
1625 FALSE, /* partial_inplace */
1627 0x1f07ff, /* dst_mask */
1628 FALSE), /* pcrel_offset */
1630 /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */
1631 HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
1633 2, /* size (0 = byte, 1 = short, 2 = long) */
1635 FALSE, /* pc_relative */
1637 complain_overflow_bitfield, /* complain_on_overflow */
1638 bfd_elf_generic_reloc, /* special_function */
1639 "R_PPC_VLE_SDAREL_HA16A", /* name */
1640 FALSE, /* partial_inplace */
1642 0x1f007ff, /* dst_mask */
1643 FALSE), /* pcrel_offset */
1645 /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */
1646 HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
1648 2, /* size (0 = byte, 1 = short, 2 = long) */
1650 FALSE, /* pc_relative */
1652 complain_overflow_bitfield, /* complain_on_overflow */
1653 bfd_elf_generic_reloc, /* special_function */
1654 "R_PPC_VLE_SDAREL_HA16D", /* name */
1655 FALSE, /* partial_inplace */
1657 0x1f07ff, /* dst_mask */
1658 FALSE), /* pcrel_offset */
1660 HOWTO (R_PPC_IRELATIVE, /* type */
1662 2, /* size (0 = byte, 1 = short, 2 = long) */
1664 FALSE, /* pc_relative */
1666 complain_overflow_bitfield, /* complain_on_overflow */
1667 bfd_elf_generic_reloc, /* special_function */
1668 "R_PPC_IRELATIVE", /* name */
1669 FALSE, /* partial_inplace */
1671 0xffffffff, /* dst_mask */
1672 FALSE), /* pcrel_offset */
1674 /* A 16 bit relative relocation. */
1675 HOWTO (R_PPC_REL16, /* type */
1677 1, /* size (0 = byte, 1 = short, 2 = long) */
1679 TRUE, /* pc_relative */
1681 complain_overflow_bitfield, /* complain_on_overflow */
1682 bfd_elf_generic_reloc, /* special_function */
1683 "R_PPC_REL16", /* name */
1684 FALSE, /* partial_inplace */
1686 0xffff, /* dst_mask */
1687 TRUE), /* pcrel_offset */
1689 /* A 16 bit relative relocation without overflow. */
1690 HOWTO (R_PPC_REL16_LO, /* type */
1692 1, /* size (0 = byte, 1 = short, 2 = long) */
1694 TRUE, /* pc_relative */
1696 complain_overflow_dont,/* complain_on_overflow */
1697 bfd_elf_generic_reloc, /* special_function */
1698 "R_PPC_REL16_LO", /* name */
1699 FALSE, /* partial_inplace */
1701 0xffff, /* dst_mask */
1702 TRUE), /* pcrel_offset */
1704 /* The high order 16 bits of a relative address. */
1705 HOWTO (R_PPC_REL16_HI, /* type */
1706 16, /* rightshift */
1707 1, /* size (0 = byte, 1 = short, 2 = long) */
1709 TRUE, /* pc_relative */
1711 complain_overflow_dont, /* complain_on_overflow */
1712 bfd_elf_generic_reloc, /* special_function */
1713 "R_PPC_REL16_HI", /* name */
1714 FALSE, /* partial_inplace */
1716 0xffff, /* dst_mask */
1717 TRUE), /* pcrel_offset */
1719 /* The high order 16 bits of a relative address, plus 1 if the contents of
1720 the low 16 bits, treated as a signed number, is negative. */
1721 HOWTO (R_PPC_REL16_HA, /* type */
1722 16, /* rightshift */
1723 1, /* size (0 = byte, 1 = short, 2 = long) */
1725 TRUE, /* pc_relative */
1727 complain_overflow_dont, /* complain_on_overflow */
1728 ppc_elf_addr16_ha_reloc, /* special_function */
1729 "R_PPC_REL16_HA", /* name */
1730 FALSE, /* partial_inplace */
1732 0xffff, /* dst_mask */
1733 TRUE), /* pcrel_offset */
1735 /* GNU extension to record C++ vtable hierarchy. */
1736 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1738 0, /* size (0 = byte, 1 = short, 2 = long) */
1740 FALSE, /* pc_relative */
1742 complain_overflow_dont, /* complain_on_overflow */
1743 NULL, /* special_function */
1744 "R_PPC_GNU_VTINHERIT", /* name */
1745 FALSE, /* partial_inplace */
1748 FALSE), /* pcrel_offset */
1750 /* GNU extension to record C++ vtable member usage. */
1751 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1753 0, /* size (0 = byte, 1 = short, 2 = long) */
1755 FALSE, /* pc_relative */
1757 complain_overflow_dont, /* complain_on_overflow */
1758 NULL, /* special_function */
1759 "R_PPC_GNU_VTENTRY", /* name */
1760 FALSE, /* partial_inplace */
1763 FALSE), /* pcrel_offset */
1765 /* Phony reloc to handle AIX style TOC entries. */
1766 HOWTO (R_PPC_TOC16, /* type */
1768 1, /* size (0 = byte, 1 = short, 2 = long) */
1770 FALSE, /* pc_relative */
1772 complain_overflow_signed, /* complain_on_overflow */
1773 bfd_elf_generic_reloc, /* special_function */
1774 "R_PPC_TOC16", /* name */
1775 FALSE, /* partial_inplace */
1777 0xffff, /* dst_mask */
1778 FALSE), /* pcrel_offset */
1781 /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1784 ppc_elf_howto_init (void)
1786 unsigned int i, type;
1789 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1792 type = ppc_elf_howto_raw[i].type;
1793 if (type >= (sizeof (ppc_elf_howto_table)
1794 / sizeof (ppc_elf_howto_table[0])))
1796 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1800 static reloc_howto_type *
1801 ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1802 bfd_reloc_code_real_type code)
1804 enum elf_ppc_reloc_type r;
1806 /* Initialize howto table if not already done. */
1807 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1808 ppc_elf_howto_init ();
1815 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1816 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1817 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1818 case BFD_RELOC_PPC64_ADDR16_DS:
1819 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1820 case BFD_RELOC_PPC64_ADDR16_LO_DS:
1821 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1822 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1823 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1824 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1825 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1826 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1827 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1828 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1829 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1830 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1831 case BFD_RELOC_PPC64_GOT16_DS:
1832 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1833 case BFD_RELOC_PPC64_GOT16_LO_DS:
1834 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1835 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1836 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1837 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1838 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1839 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1840 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1841 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1842 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1843 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1844 case BFD_RELOC_PPC64_PLT16_LO_DS:
1845 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1846 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1847 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1848 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1849 case BFD_RELOC_PPC64_SECTOFF_DS:
1850 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1851 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
1852 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1853 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1854 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1855 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1856 case BFD_RELOC_PPC64_TOC16_DS:
1857 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1858 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
1859 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1860 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
1861 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1862 case BFD_RELOC_PPC64_TPREL16_DS:
1863 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1864 case BFD_RELOC_PPC64_TPREL16_LO_DS:
1865 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1866 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1867 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1868 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1869 case BFD_RELOC_PPC64_DTPREL16_DS:
1870 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1871 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
1872 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1873 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1874 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1875 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1876 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1877 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1878 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1879 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1880 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1881 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1882 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1883 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1884 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1885 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1886 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1887 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1888 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1889 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1890 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1891 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1892 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1893 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1894 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1895 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1896 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1897 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1898 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1899 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1900 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1901 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1902 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1903 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1904 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1905 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1906 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1907 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
1908 case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
1909 case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
1910 case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
1911 case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
1912 case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
1913 case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
1914 case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
1915 case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
1916 case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
1917 case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
1918 case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
1919 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
1920 r = R_PPC_VLE_SDAREL_LO16A;
1922 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
1923 r = R_PPC_VLE_SDAREL_LO16D;
1925 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
1926 r = R_PPC_VLE_SDAREL_HI16A;
1928 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
1929 r = R_PPC_VLE_SDAREL_HI16D;
1931 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
1932 r = R_PPC_VLE_SDAREL_HA16A;
1934 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
1935 r = R_PPC_VLE_SDAREL_HA16D;
1937 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
1938 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
1939 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
1940 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
1941 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
1942 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
1945 return ppc_elf_howto_table[r];
1948 static reloc_howto_type *
1949 ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1955 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1957 if (ppc_elf_howto_raw[i].name != NULL
1958 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
1959 return &ppc_elf_howto_raw[i];
1964 /* Set the howto pointer for a PowerPC ELF reloc. */
1967 ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1969 Elf_Internal_Rela *dst)
1971 /* Initialize howto table if not already done. */
1972 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1973 ppc_elf_howto_init ();
1975 BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
1976 cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
1978 /* Just because the above assert didn't trigger doesn't mean that
1979 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
1980 if (!cache_ptr->howto)
1982 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
1983 abfd, ELF32_R_TYPE (dst->r_info));
1984 bfd_set_error (bfd_error_bad_value);
1986 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
1990 /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
1992 static bfd_reloc_status_type
1993 ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
1994 arelent *reloc_entry,
1996 void *data ATTRIBUTE_UNUSED,
1997 asection *input_section,
1999 char **error_message ATTRIBUTE_UNUSED)
2003 if (output_bfd != NULL)
2005 reloc_entry->address += input_section->output_offset;
2006 return bfd_reloc_ok;
2009 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
2010 return bfd_reloc_outofrange;
2012 if (bfd_is_com_section (symbol->section))
2015 relocation = symbol->value;
2017 relocation += symbol->section->output_section->vma;
2018 relocation += symbol->section->output_offset;
2019 relocation += reloc_entry->addend;
2020 if (reloc_entry->howto->pc_relative)
2021 relocation -= reloc_entry->address;
2023 reloc_entry->addend += (relocation & 0x8000) << 1;
2025 return bfd_reloc_continue;
2028 static bfd_reloc_status_type
2029 ppc_elf_unhandled_reloc (bfd *abfd,
2030 arelent *reloc_entry,
2033 asection *input_section,
2035 char **error_message)
2037 /* If this is a relocatable link (output_bfd test tells us), just
2038 call the generic function. Any adjustment will be done at final
2040 if (output_bfd != NULL)
2041 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2042 input_section, output_bfd, error_message);
2044 if (error_message != NULL)
2046 static char buf[60];
2047 sprintf (buf, _("generic linker can't handle %s"),
2048 reloc_entry->howto->name);
2049 *error_message = buf;
2051 return bfd_reloc_dangerous;
2054 /* Sections created by the linker. */
2056 typedef struct elf_linker_section
2058 /* Pointer to the bfd section. */
2062 /* Associated bss section name. */
2063 const char *bss_name;
2064 /* Associated symbol name. */
2065 const char *sym_name;
2066 /* Associated symbol. */
2067 struct elf_link_hash_entry *sym;
2068 } elf_linker_section_t;
2070 /* Linked list of allocated pointer entries. This hangs off of the
2071 symbol lists, and provides allows us to return different pointers,
2072 based on different addend's. */
2074 typedef struct elf_linker_section_pointers
2076 /* next allocated pointer for this symbol */
2077 struct elf_linker_section_pointers *next;
2078 /* offset of pointer from beginning of section */
2082 /* which linker section this is */
2083 elf_linker_section_t *lsect;
2084 } elf_linker_section_pointers_t;
2086 struct ppc_elf_obj_tdata
2088 struct elf_obj_tdata elf;
2090 /* A mapping from local symbols to offsets into the various linker
2091 sections added. This is index by the symbol index. */
2092 elf_linker_section_pointers_t **linker_section_pointers;
2094 /* Flags used to auto-detect plt type. */
2095 unsigned int makes_plt_call : 1;
2096 unsigned int has_rel16 : 1;
2099 #define ppc_elf_tdata(bfd) \
2100 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
2102 #define elf_local_ptr_offsets(bfd) \
2103 (ppc_elf_tdata (bfd)->linker_section_pointers)
2105 #define is_ppc_elf(bfd) \
2106 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2107 && elf_object_id (bfd) == PPC32_ELF_DATA)
2109 /* Override the generic function because we store some extras. */
2112 ppc_elf_mkobject (bfd *abfd)
2114 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
2118 /* Fix bad default arch selected for a 32 bit input bfd when the
2119 default is 64 bit. */
2122 ppc_elf_object_p (bfd *abfd)
2124 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
2126 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2128 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2130 /* Relies on arch after 64 bit default being 32 bit default. */
2131 abfd->arch_info = abfd->arch_info->next;
2132 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2138 /* Function to set whether a module needs the -mrelocatable bit set. */
2141 ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2143 BFD_ASSERT (!elf_flags_init (abfd)
2144 || elf_elfheader (abfd)->e_flags == flags);
2146 elf_elfheader (abfd)->e_flags = flags;
2147 elf_flags_init (abfd) = TRUE;
2151 /* Support for core dump NOTE sections. */
2154 ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2159 switch (note->descsz)
2164 case 268: /* Linux/PPC. */
2166 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2169 elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
2178 /* Make a ".reg/999" section. */
2179 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2180 size, note->descpos + offset);
2184 ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2186 switch (note->descsz)
2191 case 128: /* Linux/PPC elf_prpsinfo. */
2192 elf_tdata (abfd)->core_pid
2193 = bfd_get_32 (abfd, note->descdata + 16);
2194 elf_tdata (abfd)->core_program
2195 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
2196 elf_tdata (abfd)->core_command
2197 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2200 /* Note that for some reason, a spurious space is tacked
2201 onto the end of the args in some (at least one anyway)
2202 implementations, so strip it off if it exists. */
2205 char *command = elf_tdata (abfd)->core_command;
2206 int n = strlen (command);
2208 if (0 < n && command[n - 1] == ' ')
2209 command[n - 1] = '\0';
2216 ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
2228 va_start (ap, note_type);
2229 memset (data, 0, sizeof (data));
2230 strncpy (data + 32, va_arg (ap, const char *), 16);
2231 strncpy (data + 48, va_arg (ap, const char *), 80);
2233 return elfcore_write_note (abfd, buf, bufsiz,
2234 "CORE", note_type, data, sizeof (data));
2245 va_start (ap, note_type);
2246 memset (data, 0, 72);
2247 pid = va_arg (ap, long);
2248 bfd_put_32 (abfd, pid, data + 24);
2249 cursig = va_arg (ap, int);
2250 bfd_put_16 (abfd, cursig, data + 12);
2251 greg = va_arg (ap, const void *);
2252 memcpy (data + 72, greg, 192);
2253 memset (data + 264, 0, 4);
2255 return elfcore_write_note (abfd, buf, bufsiz,
2256 "CORE", note_type, data, sizeof (data));
2262 ppc_elf_lookup_section_flags (char *flag_name)
2265 if (!strcmp (flag_name, "SHF_PPC_VLE"))
2271 /* Add the VLE flag if required. */
2274 ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr)
2276 if (bfd_get_mach (abfd) == bfd_mach_ppc_vle
2277 && (shdr->sh_flags & SHF_EXECINSTR) != 0)
2278 shdr->sh_flags |= SHF_PPC_VLE;
2283 /* Return address for Ith PLT stub in section PLT, for relocation REL
2284 or (bfd_vma) -1 if it should not be included. */
2287 ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
2288 const asection *plt ATTRIBUTE_UNUSED,
2291 return rel->address;
2294 /* Handle a PowerPC specific section when reading an object file. This
2295 is called when bfd_section_from_shdr finds a section with an unknown
2299 ppc_elf_section_from_shdr (bfd *abfd,
2300 Elf_Internal_Shdr *hdr,
2307 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
2310 newsect = hdr->bfd_section;
2311 flags = bfd_get_section_flags (abfd, newsect);
2312 if (hdr->sh_flags & SHF_EXCLUDE)
2313 flags |= SEC_EXCLUDE;
2315 if (hdr->sh_type == SHT_ORDERED)
2316 flags |= SEC_SORT_ENTRIES;
2318 bfd_set_section_flags (abfd, newsect, flags);
2322 /* Set up any other section flags and such that may be necessary. */
2325 ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2326 Elf_Internal_Shdr *shdr,
2329 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2330 shdr->sh_type = SHT_ORDERED;
2335 /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2336 need to bump up the number of section headers. */
2339 ppc_elf_additional_program_headers (bfd *abfd,
2340 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2345 s = bfd_get_section_by_name (abfd, ".sbss2");
2346 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2349 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2350 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2356 /* Modify the segment map for VLE executables. */
2359 ppc_elf_modify_segment_map (bfd *abfd,
2360 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2362 struct elf_segment_map *m, *n;
2365 bfd_boolean sect0_vle, sectj_vle;
2367 /* At this point in the link, output sections have already been sorted by
2368 LMA and assigned to segments. All that is left to do is to ensure
2369 there is no mixing of VLE & non-VLE sections in a text segment.
2370 If we find that case, we split the segment.
2371 We maintain the original output section order. */
2373 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
2378 sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0;
2379 for (j = 1; j < m->count; ++j)
2381 sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0;
2383 if (sectj_vle != sect0_vle)
2389 /* sections 0..j-1 stay in this (current) segment,
2390 the remainder are put in a new segment.
2391 The scan resumes with the new segment. */
2393 /* Fix the new segment. */
2394 amt = sizeof (struct elf_segment_map);
2395 amt += (m->count - j - 1) * sizeof (asection *);
2396 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2400 n->p_type = PT_LOAD;
2401 n->p_flags = PF_X | PF_R;
2403 n->p_flags |= PF_PPC_VLE;
2404 n->count = m->count - j;
2405 for (k = 0; k < n->count; ++k)
2407 n->sections[k] = m->sections[j+k];
2408 m->sections[j+k] = NULL;
2413 /* Fix the current segment */
2420 /* Add extra PPC sections -- Note, for now, make .sbss2 and
2421 .PPC.EMB.sbss0 a normal section, and not a bss section so
2422 that the linker doesn't crater when trying to make more than
2425 static const struct bfd_elf_special_section ppc_elf_special_sections[] =
2427 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2428 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2429 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2430 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2431 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2432 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2433 { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 },
2434 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2435 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2436 { NULL, 0, 0, 0, 0 }
2439 /* This is what we want for new plt/got. */
2440 static struct bfd_elf_special_section ppc_alt_plt =
2441 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
2443 static const struct bfd_elf_special_section *
2444 ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
2446 const struct bfd_elf_special_section *ssect;
2448 /* See if this is one of the special sections. */
2449 if (sec->name == NULL)
2452 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2456 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2457 ssect = &ppc_alt_plt;
2461 return _bfd_elf_get_sec_type_attr (abfd, sec);
2464 /* Very simple linked list structure for recording apuinfo values. */
2465 typedef struct apuinfo_list
2467 struct apuinfo_list *next;
2468 unsigned long value;
2472 static apuinfo_list *head;
2473 static bfd_boolean apuinfo_set;
2476 apuinfo_list_init (void)
2479 apuinfo_set = FALSE;
2483 apuinfo_list_add (unsigned long value)
2485 apuinfo_list *entry = head;
2487 while (entry != NULL)
2489 if (entry->value == value)
2491 entry = entry->next;
2494 entry = bfd_malloc (sizeof (* entry));
2498 entry->value = value;
2504 apuinfo_list_length (void)
2506 apuinfo_list *entry;
2507 unsigned long count;
2509 for (entry = head, count = 0;
2511 entry = entry->next)
2517 static inline unsigned long
2518 apuinfo_list_element (unsigned long number)
2520 apuinfo_list * entry;
2524 entry = entry->next)
2527 return entry ? entry->value : 0;
2531 apuinfo_list_finish (void)
2533 apuinfo_list *entry;
2535 for (entry = head; entry;)
2537 apuinfo_list *next = entry->next;
2545 #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2546 #define APUINFO_LABEL "APUinfo"
2548 /* Scan the input BFDs and create a linked list of
2549 the APUinfo values that will need to be emitted. */
2552 ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2556 char *buffer = NULL;
2557 bfd_size_type largest_input_size = 0;
2559 unsigned long length;
2560 const char *error_message = NULL;
2562 if (link_info == NULL)
2565 apuinfo_list_init ();
2567 /* Read in the input sections contents. */
2568 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
2570 unsigned long datum;
2572 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2576 error_message = _("corrupt %s section in %B");
2577 length = asec->size;
2582 if (largest_input_size < asec->size)
2586 largest_input_size = asec->size;
2587 buffer = bfd_malloc (largest_input_size);
2592 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
2593 || (bfd_bread (buffer, length, ibfd) != length))
2595 error_message = _("unable to read in %s section from %B");
2599 /* Verify the contents of the header. Note - we have to
2600 extract the values this way in order to allow for a
2601 host whose endian-ness is different from the target. */
2602 datum = bfd_get_32 (ibfd, buffer);
2603 if (datum != sizeof APUINFO_LABEL)
2606 datum = bfd_get_32 (ibfd, buffer + 8);
2610 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
2613 /* Get the number of bytes used for apuinfo entries. */
2614 datum = bfd_get_32 (ibfd, buffer + 4);
2615 if (datum + 20 != length)
2618 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2619 for (i = 0; i < datum; i += 4)
2620 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
2623 error_message = NULL;
2627 /* Compute the size of the output section. */
2628 unsigned num_entries = apuinfo_list_length ();
2630 /* Set the output section size, if it exists. */
2631 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2633 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2636 error_message = _("warning: unable to set size of %s section in %B");
2645 (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
2648 /* Prevent the output section from accumulating the input sections'
2649 contents. We have already stored this in our linked list structure. */
2652 ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
2653 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2655 bfd_byte *contents ATTRIBUTE_UNUSED)
2657 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
2660 /* Finally we can generate the output section. */
2663 ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
2668 unsigned num_entries;
2669 bfd_size_type length;
2671 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2678 length = asec->size;
2682 buffer = bfd_malloc (length);
2685 (*_bfd_error_handler)
2686 (_("failed to allocate space for new APUinfo section."));
2690 /* Create the apuinfo header. */
2691 num_entries = apuinfo_list_length ();
2692 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2693 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2694 bfd_put_32 (abfd, 0x2, buffer + 8);
2695 strcpy ((char *) buffer + 12, APUINFO_LABEL);
2698 for (i = 0; i < num_entries; i++)
2700 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2704 if (length != asec->size)
2705 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
2707 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2708 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
2712 apuinfo_list_finish ();
2716 is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
2718 bfd_byte buf[GLINK_ENTRY_SIZE];
2720 if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
2723 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2724 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2725 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2726 && bfd_get_32 (abfd, buf + 12) == BCTR);
2730 section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2732 bfd_vma vma = *(bfd_vma *) ptr;
2733 return ((section->flags & SEC_ALLOC) != 0
2734 && section->vma <= vma
2735 && vma < section->vma + section->size);
2739 ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2740 long dynsymcount, asymbol **dynsyms,
2743 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2744 asection *plt, *relplt, *dynamic, *glink;
2745 bfd_vma glink_vma = 0;
2746 bfd_vma resolv_vma = 0;
2757 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2760 if (dynsymcount <= 0)
2763 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2767 plt = bfd_get_section_by_name (abfd, ".plt");
2771 /* Call common code to handle old-style executable PLTs. */
2772 if (elf_section_flags (plt) & SHF_EXECINSTR)
2773 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2774 dynsymcount, dynsyms, ret);
2776 /* If this object was prelinked, the prelinker stored the address
2777 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2778 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2779 if (dynamic != NULL)
2781 bfd_byte *dynbuf, *extdyn, *extdynend;
2783 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2785 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2788 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2789 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2792 extdynend = extdyn + dynamic->size;
2793 for (; extdyn < extdynend; extdyn += extdynsize)
2795 Elf_Internal_Dyn dyn;
2796 (*swap_dyn_in) (abfd, extdyn, &dyn);
2798 if (dyn.d_tag == DT_NULL)
2801 if (dyn.d_tag == DT_PPC_GOT)
2803 unsigned int g_o_t = dyn.d_un.d_val;
2804 asection *got = bfd_get_section_by_name (abfd, ".got");
2806 && bfd_get_section_contents (abfd, got, buf,
2807 g_o_t - got->vma + 4, 4))
2808 glink_vma = bfd_get_32 (abfd, buf);
2815 /* Otherwise we read the first plt entry. */
2818 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
2819 glink_vma = bfd_get_32 (abfd, buf);
2825 /* The .glink section usually does not survive the final
2826 link; search for the section (usually .text) where the
2827 glink stubs now reside. */
2828 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
2832 /* Determine glink PLT resolver by reading the relative branch
2833 from the first glink stub. */
2834 if (bfd_get_section_contents (abfd, glink, buf,
2835 glink_vma - glink->vma, 4))
2837 unsigned int insn = bfd_get_32 (abfd, buf);
2839 /* The first glink stub may either branch to the resolver ... */
2841 if ((insn & ~0x3fffffc) == 0)
2842 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
2844 /* ... or fall through a bunch of NOPs. */
2845 else if ((insn ^ B ^ NOP) == 0)
2847 bfd_get_section_contents (abfd, glink, buf,
2848 glink_vma - glink->vma + i, 4);
2850 if (bfd_get_32 (abfd, buf) != NOP)
2852 resolv_vma = glink_vma + i;
2857 count = relplt->size / sizeof (Elf32_External_Rela);
2858 stub_vma = glink_vma - (bfd_vma) count * 16;
2859 /* If the stubs are those for -shared/-pie then we might have
2860 multiple stubs for each plt entry. If that is the case then
2861 there is no way to associate stubs with their plt entries short
2862 of figuring out the GOT pointer value used in the stub. */
2863 if (!is_nonpic_glink_stub (abfd, glink,
2864 glink_vma - GLINK_ENTRY_SIZE - glink->vma))
2867 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2868 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
2871 size = count * sizeof (asymbol);
2872 p = relplt->relocation;
2873 for (i = 0; i < count; i++, p++)
2875 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
2877 size += sizeof ("+0x") - 1 + 8;
2880 size += sizeof (asymbol) + sizeof ("__glink");
2883 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
2885 s = *ret = bfd_malloc (size);
2889 names = (char *) (s + count + 1 + (resolv_vma != 0));
2890 p = relplt->relocation;
2891 for (i = 0; i < count; i++, p++)
2895 *s = **p->sym_ptr_ptr;
2896 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
2897 we are defining a symbol, ensure one of them is set. */
2898 if ((s->flags & BSF_LOCAL) == 0)
2899 s->flags |= BSF_GLOBAL;
2900 s->flags |= BSF_SYNTHETIC;
2902 s->value = stub_vma - glink->vma;
2905 len = strlen ((*p->sym_ptr_ptr)->name);
2906 memcpy (names, (*p->sym_ptr_ptr)->name, len);
2910 memcpy (names, "+0x", sizeof ("+0x") - 1);
2911 names += sizeof ("+0x") - 1;
2912 bfd_sprintf_vma (abfd, names, p->addend);
2913 names += strlen (names);
2915 memcpy (names, "@plt", sizeof ("@plt"));
2916 names += sizeof ("@plt");
2921 /* Add a symbol at the start of the glink branch table. */
2922 memset (s, 0, sizeof *s);
2924 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
2926 s->value = glink_vma - glink->vma;
2928 memcpy (names, "__glink", sizeof ("__glink"));
2929 names += sizeof ("__glink");
2935 /* Add a symbol for the glink PLT resolver. */
2936 memset (s, 0, sizeof *s);
2938 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
2940 s->value = resolv_vma - glink->vma;
2942 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
2943 names += sizeof ("__glink_PLTresolve");
2951 /* The following functions are specific to the ELF linker, while
2952 functions above are used generally. They appear in this file more
2953 or less in the order in which they are called. eg.
2954 ppc_elf_check_relocs is called early in the link process,
2955 ppc_elf_finish_dynamic_sections is one of the last functions
2958 /* Track PLT entries needed for a given symbol. We might need more
2959 than one glink entry per symbol when generating a pic binary. */
2962 struct plt_entry *next;
2964 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
2965 This field stores the offset into .got2 used to initialise the
2966 GOT pointer reg. It will always be at least 32768. (Current
2967 gcc always uses an offset of 32768, but ld -r will pack .got2
2968 sections together resulting in larger offsets). */
2971 /* The .got2 section. */
2974 /* PLT refcount or offset. */
2977 bfd_signed_vma refcount;
2981 /* .glink stub offset. */
2982 bfd_vma glink_offset;
2985 /* Of those relocs that might be copied as dynamic relocs, this function
2986 selects those that must be copied when linking a shared library,
2987 even when the symbol is local. */
2990 must_be_dyn_reloc (struct bfd_link_info *info,
2991 enum elf_ppc_reloc_type r_type)
3000 case R_PPC_REL14_BRTAKEN:
3001 case R_PPC_REL14_BRNTAKEN:
3007 case R_PPC_TPREL16_LO:
3008 case R_PPC_TPREL16_HI:
3009 case R_PPC_TPREL16_HA:
3010 return !info->executable;
3014 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3015 copying dynamic variables from a shared lib into an app's dynbss
3016 section, and instead use a dynamic relocation to point into the
3018 #define ELIMINATE_COPY_RELOCS 1
3020 /* PPC ELF linker hash entry. */
3022 struct ppc_elf_link_hash_entry
3024 struct elf_link_hash_entry elf;
3026 /* If this symbol is used in the linker created sections, the processor
3027 specific backend uses this field to map the field into the offset
3028 from the beginning of the section. */
3029 elf_linker_section_pointers_t *linker_section_pointer;
3031 /* Track dynamic relocs copied for this symbol. */
3032 struct elf_dyn_relocs *dyn_relocs;
3034 /* Contexts in which symbol is used in the GOT (or TOC).
3035 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3036 corresponding relocs are encountered during check_relocs.
3037 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3038 indicate the corresponding GOT entry type is not needed. */
3039 #define TLS_GD 1 /* GD reloc. */
3040 #define TLS_LD 2 /* LD reloc. */
3041 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
3042 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3043 #define TLS_TLS 16 /* Any TLS reloc. */
3044 #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
3045 #define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
3048 /* Nonzero if we have seen a small data relocation referring to this
3050 unsigned char has_sda_refs;
3053 #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3055 /* PPC ELF linker hash table. */
3057 struct ppc_elf_link_hash_table
3059 struct elf_link_hash_table elf;
3061 /* Short-cuts to get to dynamic linker sections. */
3073 elf_linker_section_t sdata[2];
3075 asection *glink_eh_frame;
3077 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3080 /* The .got.plt section (VxWorks only)*/
3083 /* Shortcut to __tls_get_addr. */
3084 struct elf_link_hash_entry *tls_get_addr;
3086 /* The bfd that forced an old-style PLT. */
3089 /* TLS local dynamic got entry handling. */
3091 bfd_signed_vma refcount;
3095 /* Offset of branch table to PltResolve function in glink. */
3096 bfd_vma glink_pltresolve;
3098 /* Size of reserved GOT entries. */
3099 unsigned int got_header_size;
3100 /* Non-zero if allocating the header left a gap. */
3101 unsigned int got_gap;
3103 /* The type of PLT we have chosen to use. */
3104 enum ppc_elf_plt_type plt_type;
3106 /* Set if we should emit symbols for stubs. */
3107 unsigned int emit_stub_syms:1;
3109 /* Set if __tls_get_addr optimization should not be done. */
3110 unsigned int no_tls_get_addr_opt:1;
3112 /* True if the target system is VxWorks. */
3113 unsigned int is_vxworks:1;
3115 /* The size of PLT entries. */
3117 /* The distance between adjacent PLT slots. */
3119 /* The size of the first PLT entry. */
3120 int plt_initial_entry_size;
3122 /* Small local sym cache. */
3123 struct sym_cache sym_cache;
3126 /* Rename some of the generic section flags to better document how they
3127 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3129 /* Nonzero if this section has TLS related relocations. */
3130 #define has_tls_reloc sec_flg0
3132 /* Nonzero if this section has a call to __tls_get_addr. */
3133 #define has_tls_get_addr_call sec_flg1
3135 /* Get the PPC ELF linker hash table from a link_info structure. */
3137 #define ppc_elf_hash_table(p) \
3138 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3139 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
3141 /* Create an entry in a PPC ELF linker hash table. */
3143 static struct bfd_hash_entry *
3144 ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3145 struct bfd_hash_table *table,
3148 /* Allocate the structure if it has not already been allocated by a
3152 entry = bfd_hash_allocate (table,
3153 sizeof (struct ppc_elf_link_hash_entry));
3158 /* Call the allocation method of the superclass. */
3159 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3162 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3163 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3164 ppc_elf_hash_entry (entry)->tls_mask = 0;
3165 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
3171 /* Create a PPC ELF linker hash table. */
3173 static struct bfd_link_hash_table *
3174 ppc_elf_link_hash_table_create (bfd *abfd)
3176 struct ppc_elf_link_hash_table *ret;
3178 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3182 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3183 ppc_elf_link_hash_newfunc,
3184 sizeof (struct ppc_elf_link_hash_entry),
3191 ret->elf.init_plt_refcount.refcount = 0;
3192 ret->elf.init_plt_refcount.glist = NULL;
3193 ret->elf.init_plt_offset.offset = 0;
3194 ret->elf.init_plt_offset.glist = NULL;
3196 ret->sdata[0].name = ".sdata";
3197 ret->sdata[0].sym_name = "_SDA_BASE_";
3198 ret->sdata[0].bss_name = ".sbss";
3200 ret->sdata[1].name = ".sdata2";
3201 ret->sdata[1].sym_name = "_SDA2_BASE_";
3202 ret->sdata[1].bss_name = ".sbss2";
3204 ret->plt_entry_size = 12;
3205 ret->plt_slot_size = 8;
3206 ret->plt_initial_entry_size = 72;
3208 return &ret->elf.root;
3211 /* Create .got and the related sections. */
3214 ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3216 struct ppc_elf_link_hash_table *htab;
3220 if (!_bfd_elf_create_got_section (abfd, info))
3223 htab = ppc_elf_hash_table (info);
3224 htab->got = s = bfd_get_linker_section (abfd, ".got");
3228 if (htab->is_vxworks)
3230 htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt");
3236 /* The powerpc .got has a blrl instruction in it. Mark it
3238 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3239 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3240 if (!bfd_set_section_flags (abfd, s, flags))
3244 htab->relgot = bfd_get_linker_section (abfd, ".rela.got");
3252 ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3254 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3258 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3259 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3260 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3263 || !bfd_set_section_alignment (abfd, s, 4))
3266 if (!info->no_ld_generated_unwind_info)
3268 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3269 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3270 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3271 htab->glink_eh_frame = s;
3273 || !bfd_set_section_alignment (abfd, s, 2))
3277 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3278 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
3281 || !bfd_set_section_alignment (abfd, s, 4))
3284 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3285 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3286 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
3289 || ! bfd_set_section_alignment (abfd, s, 2))
3294 /* We have to create .dynsbss and .rela.sbss here so that they get mapped
3295 to output sections (just like _bfd_elf_create_dynamic_sections has
3296 to create .dynbss and .rela.bss). */
3299 ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3301 struct ppc_elf_link_hash_table *htab;
3305 htab = ppc_elf_hash_table (info);
3307 if (htab->got == NULL
3308 && !ppc_elf_create_got (abfd, info))
3311 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3314 if (htab->glink == NULL
3315 && !ppc_elf_create_glink (abfd, info))
3318 htab->dynbss = bfd_get_linker_section (abfd, ".dynbss");
3319 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3320 SEC_ALLOC | SEC_LINKER_CREATED);
3327 htab->relbss = bfd_get_linker_section (abfd, ".rela.bss");
3328 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3329 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3330 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3333 || ! bfd_set_section_alignment (abfd, s, 2))
3337 if (htab->is_vxworks
3338 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3341 htab->relplt = bfd_get_linker_section (abfd, ".rela.plt");
3342 htab->plt = s = bfd_get_linker_section (abfd, ".plt");
3346 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
3347 if (htab->plt_type == PLT_VXWORKS)
3348 /* The VxWorks PLT is a loaded section with contents. */
3349 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
3350 return bfd_set_section_flags (abfd, s, flags);
3353 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3356 ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
3357 struct elf_link_hash_entry *dir,
3358 struct elf_link_hash_entry *ind)
3360 struct ppc_elf_link_hash_entry *edir, *eind;
3362 edir = (struct ppc_elf_link_hash_entry *) dir;
3363 eind = (struct ppc_elf_link_hash_entry *) ind;
3365 edir->tls_mask |= eind->tls_mask;
3366 edir->has_sda_refs |= eind->has_sda_refs;
3368 /* If called to transfer flags for a weakdef during processing
3369 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3370 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3371 if (!(ELIMINATE_COPY_RELOCS
3372 && eind->elf.root.type != bfd_link_hash_indirect
3373 && edir->elf.dynamic_adjusted))
3374 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3376 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
3377 edir->elf.ref_regular |= eind->elf.ref_regular;
3378 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3379 edir->elf.needs_plt |= eind->elf.needs_plt;
3380 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3382 if (eind->dyn_relocs != NULL)
3384 if (edir->dyn_relocs != NULL)
3386 struct elf_dyn_relocs **pp;
3387 struct elf_dyn_relocs *p;
3389 /* Add reloc counts against the indirect sym to the direct sym
3390 list. Merge any entries against the same section. */
3391 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3393 struct elf_dyn_relocs *q;
3395 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3396 if (q->sec == p->sec)
3398 q->pc_count += p->pc_count;
3399 q->count += p->count;
3406 *pp = edir->dyn_relocs;
3409 edir->dyn_relocs = eind->dyn_relocs;
3410 eind->dyn_relocs = NULL;
3413 /* If we were called to copy over info for a weak sym, that's all.
3414 You might think dyn_relocs need not be copied over; After all,
3415 both syms will be dynamic or both non-dynamic so we're just
3416 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
3417 code in ppc_elf_adjust_dynamic_symbol needs to check for
3418 dyn_relocs in read-only sections, and it does so on what is the
3420 if (eind->elf.root.type != bfd_link_hash_indirect)
3423 /* Copy over the GOT refcount entries that we may have already seen to
3424 the symbol which just became indirect. */
3425 edir->elf.got.refcount += eind->elf.got.refcount;
3426 eind->elf.got.refcount = 0;
3428 /* And plt entries. */
3429 if (eind->elf.plt.plist != NULL)
3431 if (edir->elf.plt.plist != NULL)
3433 struct plt_entry **entp;
3434 struct plt_entry *ent;
3436 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3438 struct plt_entry *dent;
3440 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3441 if (dent->sec == ent->sec && dent->addend == ent->addend)
3443 dent->plt.refcount += ent->plt.refcount;
3450 *entp = edir->elf.plt.plist;
3453 edir->elf.plt.plist = eind->elf.plt.plist;
3454 eind->elf.plt.plist = NULL;
3457 if (eind->elf.dynindx != -1)
3459 if (edir->elf.dynindx != -1)
3460 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3461 edir->elf.dynstr_index);
3462 edir->elf.dynindx = eind->elf.dynindx;
3463 edir->elf.dynstr_index = eind->elf.dynstr_index;
3464 eind->elf.dynindx = -1;
3465 eind->elf.dynstr_index = 0;
3469 /* Hook called by the linker routine which adds symbols from an object
3470 file. We use it to put .comm items in .sbss, and not .bss. */
3473 ppc_elf_add_symbol_hook (bfd *abfd,
3474 struct bfd_link_info *info,
3475 Elf_Internal_Sym *sym,
3476 const char **namep ATTRIBUTE_UNUSED,
3477 flagword *flagsp ATTRIBUTE_UNUSED,
3481 if (sym->st_shndx == SHN_COMMON
3482 && !info->relocatable
3483 && is_ppc_elf (info->output_bfd)
3484 && sym->st_size <= elf_gp_size (abfd))
3486 /* Common symbols less than or equal to -G nn bytes are automatically
3488 struct ppc_elf_link_hash_table *htab;
3490 htab = ppc_elf_hash_table (info);
3491 if (htab->sbss == NULL)
3493 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3495 if (!htab->elf.dynobj)
3496 htab->elf.dynobj = abfd;
3498 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3501 if (htab->sbss == NULL)
3506 *valp = sym->st_size;
3509 if ((abfd->flags & DYNAMIC) == 0
3510 && (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
3511 || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE))
3512 elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
3518 create_sdata_sym (struct bfd_link_info *info, elf_linker_section_t *lsect)
3520 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3522 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
3524 if (lsect->sym == NULL)
3526 if (lsect->sym->root.type == bfd_link_hash_new)
3527 lsect->sym->non_elf = 0;
3528 lsect->sym->ref_regular = 1;
3529 _bfd_elf_link_hash_hide_symbol (info, lsect->sym, TRUE);
3533 /* Create a special linker section. */
3536 ppc_elf_create_linker_section (bfd *abfd,
3537 struct bfd_link_info *info,
3539 elf_linker_section_t *lsect)
3541 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3544 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3545 | SEC_LINKER_CREATED);
3547 /* Record the first bfd that needs the special sections. */
3548 if (!htab->elf.dynobj)
3549 htab->elf.dynobj = abfd;
3551 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3555 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
3559 return create_sdata_sym (info, lsect);
3562 /* Find a linker generated pointer with a given addend and type. */
3564 static elf_linker_section_pointers_t *
3565 elf_find_pointer_linker_section
3566 (elf_linker_section_pointers_t *linker_pointers,
3568 elf_linker_section_t *lsect)
3570 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3571 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3572 return linker_pointers;
3577 /* Allocate a pointer to live in a linker created section. */
3580 elf_create_pointer_linker_section (bfd *abfd,
3581 elf_linker_section_t *lsect,
3582 struct elf_link_hash_entry *h,
3583 const Elf_Internal_Rela *rel)
3585 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3586 elf_linker_section_pointers_t *linker_section_ptr;
3587 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3590 BFD_ASSERT (lsect != NULL);
3592 /* Is this a global symbol? */
3595 struct ppc_elf_link_hash_entry *eh;
3597 /* Has this symbol already been allocated? If so, our work is done. */
3598 eh = (struct ppc_elf_link_hash_entry *) h;
3599 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3604 ptr_linker_section_ptr = &eh->linker_section_pointer;
3608 BFD_ASSERT (is_ppc_elf (abfd));
3610 /* Allocation of a pointer to a local symbol. */
3611 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3613 /* Allocate a table to hold the local symbols if first time. */
3616 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
3619 amt *= sizeof (elf_linker_section_pointers_t *);
3620 ptr = bfd_zalloc (abfd, amt);
3625 elf_local_ptr_offsets (abfd) = ptr;
3628 /* Has this symbol already been allocated? If so, our work is done. */
3629 if (elf_find_pointer_linker_section (ptr[r_symndx],
3634 ptr_linker_section_ptr = &ptr[r_symndx];
3637 /* Allocate space for a pointer in the linker section, and allocate
3638 a new pointer record from internal memory. */
3639 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3640 amt = sizeof (elf_linker_section_pointers_t);
3641 linker_section_ptr = bfd_alloc (abfd, amt);
3643 if (!linker_section_ptr)
3646 linker_section_ptr->next = *ptr_linker_section_ptr;
3647 linker_section_ptr->addend = rel->r_addend;
3648 linker_section_ptr->lsect = lsect;
3649 *ptr_linker_section_ptr = linker_section_ptr;
3651 linker_section_ptr->offset = lsect->section->size;
3652 lsect->section->size += 4;
3656 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3657 lsect->name, (long) linker_section_ptr->offset,
3658 (long) lsect->section->size);
3664 static struct plt_entry **
3665 update_local_sym_info (bfd *abfd,
3666 Elf_Internal_Shdr *symtab_hdr,
3667 unsigned long r_symndx,
3670 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
3671 struct plt_entry **local_plt;
3672 char *local_got_tls_masks;
3674 if (local_got_refcounts == NULL)
3676 bfd_size_type size = symtab_hdr->sh_info;
3678 size *= (sizeof (*local_got_refcounts)
3679 + sizeof (*local_plt)
3680 + sizeof (*local_got_tls_masks));
3681 local_got_refcounts = bfd_zalloc (abfd, size);
3682 if (local_got_refcounts == NULL)
3684 elf_local_got_refcounts (abfd) = local_got_refcounts;
3687 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3688 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
3689 local_got_tls_masks[r_symndx] |= tls_type;
3690 if (tls_type != PLT_IFUNC)
3691 local_got_refcounts[r_symndx] += 1;
3692 return local_plt + r_symndx;
3696 update_plt_info (bfd *abfd, struct plt_entry **plist,
3697 asection *sec, bfd_vma addend)
3699 struct plt_entry *ent;
3703 for (ent = *plist; ent != NULL; ent = ent->next)
3704 if (ent->sec == sec && ent->addend == addend)
3708 bfd_size_type amt = sizeof (*ent);
3709 ent = bfd_alloc (abfd, amt);
3714 ent->addend = addend;
3715 ent->plt.refcount = 0;
3718 ent->plt.refcount += 1;
3722 static struct plt_entry *
3723 find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
3725 struct plt_entry *ent;
3729 for (ent = *plist; ent != NULL; ent = ent->next)
3730 if (ent->sec == sec && ent->addend == addend)
3736 is_branch_reloc (enum elf_ppc_reloc_type r_type)
3738 return (r_type == R_PPC_PLTREL24
3739 || r_type == R_PPC_LOCAL24PC
3740 || r_type == R_PPC_REL24
3741 || r_type == R_PPC_REL14
3742 || r_type == R_PPC_REL14_BRTAKEN
3743 || r_type == R_PPC_REL14_BRNTAKEN
3744 || r_type == R_PPC_ADDR24
3745 || r_type == R_PPC_ADDR14
3746 || r_type == R_PPC_ADDR14_BRTAKEN
3747 || r_type == R_PPC_ADDR14_BRNTAKEN);
3751 bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3753 (*_bfd_error_handler)
3754 (_("%B: relocation %s cannot be used when making a shared object"),
3756 ppc_elf_howto_table[r_type]->name);
3757 bfd_set_error (bfd_error_bad_value);
3760 /* Look through the relocs for a section during the first phase, and
3761 allocate space in the global offset table or procedure linkage
3765 ppc_elf_check_relocs (bfd *abfd,
3766 struct bfd_link_info *info,
3768 const Elf_Internal_Rela *relocs)
3770 struct ppc_elf_link_hash_table *htab;
3771 Elf_Internal_Shdr *symtab_hdr;
3772 struct elf_link_hash_entry **sym_hashes;
3773 const Elf_Internal_Rela *rel;
3774 const Elf_Internal_Rela *rel_end;
3775 asection *got2, *sreloc;
3776 struct elf_link_hash_entry *tga;
3778 if (info->relocatable)
3781 /* Don't do anything special with non-loaded, non-alloced sections.
3782 In particular, any relocs in such sections should not affect GOT
3783 and PLT reference counting (ie. we don't allow them to create GOT
3784 or PLT entries), there's no possibility or desire to optimize TLS
3785 relocs, and there's not much point in propagating relocs to shared
3786 libs that the dynamic linker won't relocate. */
3787 if ((sec->flags & SEC_ALLOC) == 0)
3791 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3795 BFD_ASSERT (is_ppc_elf (abfd));
3797 /* Initialize howto table if not already done. */
3798 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3799 ppc_elf_howto_init ();
3801 htab = ppc_elf_hash_table (info);
3802 if (htab->glink == NULL)
3804 if (htab->elf.dynobj == NULL)
3805 htab->elf.dynobj = abfd;
3806 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
3809 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
3810 FALSE, FALSE, TRUE);
3811 symtab_hdr = &elf_symtab_hdr (abfd);
3812 sym_hashes = elf_sym_hashes (abfd);
3813 got2 = bfd_get_section_by_name (abfd, ".got2");
3816 rel_end = relocs + sec->reloc_count;
3817 for (rel = relocs; rel < rel_end; rel++)
3819 unsigned long r_symndx;
3820 enum elf_ppc_reloc_type r_type;
3821 struct elf_link_hash_entry *h;
3824 r_symndx = ELF32_R_SYM (rel->r_info);
3825 if (r_symndx < symtab_hdr->sh_info)
3829 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3830 while (h->root.type == bfd_link_hash_indirect
3831 || h->root.type == bfd_link_hash_warning)
3832 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3835 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3836 This shows up in particular in an R_PPC_ADDR32 in the eabi
3839 && htab->got == NULL
3840 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3842 if (htab->elf.dynobj == NULL)
3843 htab->elf.dynobj = abfd;
3844 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3846 BFD_ASSERT (h == htab->elf.hgot);
3850 r_type = ELF32_R_TYPE (rel->r_info);
3851 if (h == NULL && !htab->is_vxworks)
3853 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3858 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
3860 || is_branch_reloc (r_type)))
3862 struct plt_entry **ifunc;
3865 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
3870 /* STT_GNU_IFUNC symbols must have a PLT entry;
3871 In a non-pie executable even when there are
3874 if (r_type == R_PPC_PLTREL24)
3876 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3878 addend = rel->r_addend;
3880 if (!update_plt_info (abfd, ifunc, got2, addend))
3885 if (!htab->is_vxworks
3886 && is_branch_reloc (r_type)
3891 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
3892 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
3893 /* We have a new-style __tls_get_addr call with a marker
3897 /* Mark this section as having an old-style call. */
3898 sec->has_tls_get_addr_call = 1;
3905 /* These special tls relocs tie a call to __tls_get_addr with
3906 its parameter symbol. */
3909 case R_PPC_GOT_TLSLD16:
3910 case R_PPC_GOT_TLSLD16_LO:
3911 case R_PPC_GOT_TLSLD16_HI:
3912 case R_PPC_GOT_TLSLD16_HA:
3913 tls_type = TLS_TLS | TLS_LD;
3916 case R_PPC_GOT_TLSGD16:
3917 case R_PPC_GOT_TLSGD16_LO:
3918 case R_PPC_GOT_TLSGD16_HI:
3919 case R_PPC_GOT_TLSGD16_HA:
3920 tls_type = TLS_TLS | TLS_GD;
3923 case R_PPC_GOT_TPREL16:
3924 case R_PPC_GOT_TPREL16_LO:
3925 case R_PPC_GOT_TPREL16_HI:
3926 case R_PPC_GOT_TPREL16_HA:
3927 if (!info->executable)
3928 info->flags |= DF_STATIC_TLS;
3929 tls_type = TLS_TLS | TLS_TPREL;
3932 case R_PPC_GOT_DTPREL16:
3933 case R_PPC_GOT_DTPREL16_LO:
3934 case R_PPC_GOT_DTPREL16_HI:
3935 case R_PPC_GOT_DTPREL16_HA:
3936 tls_type = TLS_TLS | TLS_DTPREL;
3938 sec->has_tls_reloc = 1;
3941 /* GOT16 relocations */
3943 case R_PPC_GOT16_LO:
3944 case R_PPC_GOT16_HI:
3945 case R_PPC_GOT16_HA:
3946 /* This symbol requires a global offset table entry. */
3947 if (htab->got == NULL)
3949 if (htab->elf.dynobj == NULL)
3950 htab->elf.dynobj = abfd;
3951 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3956 h->got.refcount += 1;
3957 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
3960 /* This is a global offset table entry for a local symbol. */
3961 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
3964 /* We may also need a plt entry if the symbol turns out to be
3966 if (h != NULL && !info->shared)
3968 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
3973 /* Indirect .sdata relocation. */
3974 case R_PPC_EMB_SDAI16:
3977 bad_shared_reloc (abfd, r_type);
3980 if (htab->sdata[0].section == NULL
3981 && !ppc_elf_create_linker_section (abfd, info, 0,
3984 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
3989 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3990 h->non_got_ref = TRUE;
3994 /* Indirect .sdata2 relocation. */
3995 case R_PPC_EMB_SDA2I16:
3998 bad_shared_reloc (abfd, r_type);
4001 if (htab->sdata[1].section == NULL
4002 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
4005 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
4010 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4011 h->non_got_ref = TRUE;
4015 case R_PPC_VLE_SDAREL_LO16A:
4016 case R_PPC_VLE_SDAREL_LO16D:
4017 case R_PPC_VLE_SDAREL_HI16A:
4018 case R_PPC_VLE_SDAREL_HI16D:
4019 case R_PPC_VLE_SDAREL_HA16A:
4020 case R_PPC_VLE_SDAREL_HA16D:
4021 case R_PPC_SDAREL16:
4022 if (htab->sdata[0].sym == NULL
4023 && !create_sdata_sym (info, &htab->sdata[0]))
4026 if (htab->sdata[1].sym == NULL
4027 && !create_sdata_sym (info, &htab->sdata[1]))
4032 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4033 h->non_got_ref = TRUE;
4037 case R_PPC_VLE_REL8:
4038 case R_PPC_VLE_REL15:
4039 case R_PPC_VLE_REL24:
4040 case R_PPC_VLE_LO16A:
4041 case R_PPC_VLE_LO16D:
4042 case R_PPC_VLE_HI16A:
4043 case R_PPC_VLE_HI16D:
4044 case R_PPC_VLE_HA16A:
4045 case R_PPC_VLE_HA16D:
4048 case R_PPC_EMB_SDA2REL:
4051 bad_shared_reloc (abfd, r_type);
4054 if (htab->sdata[1].sym == NULL
4055 && !create_sdata_sym (info, &htab->sdata[1]))
4059 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4060 h->non_got_ref = TRUE;
4064 case R_PPC_VLE_SDA21_LO:
4065 case R_PPC_VLE_SDA21:
4066 case R_PPC_EMB_SDA21:
4067 case R_PPC_EMB_RELSDA:
4070 bad_shared_reloc (abfd, r_type);
4073 if (htab->sdata[0].sym == NULL
4074 && !create_sdata_sym (info, &htab->sdata[0]))
4076 if (htab->sdata[1].sym == NULL
4077 && !create_sdata_sym (info, &htab->sdata[1]))
4081 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4082 h->non_got_ref = TRUE;
4086 case R_PPC_EMB_NADDR32:
4087 case R_PPC_EMB_NADDR16:
4088 case R_PPC_EMB_NADDR16_LO:
4089 case R_PPC_EMB_NADDR16_HI:
4090 case R_PPC_EMB_NADDR16_HA:
4093 bad_shared_reloc (abfd, r_type);
4097 h->non_got_ref = TRUE;
4100 case R_PPC_PLTREL24:
4105 case R_PPC_PLTREL32:
4106 case R_PPC_PLT16_LO:
4107 case R_PPC_PLT16_HI:
4108 case R_PPC_PLT16_HA:
4110 fprintf (stderr, "Reloc requires a PLT entry\n");
4112 /* This symbol requires a procedure linkage table entry. We
4113 actually build the entry in finish_dynamic_symbol,
4114 because this might be a case of linking PIC code without
4115 linking in any dynamic objects, in which case we don't
4116 need to generate a procedure linkage table after all. */
4120 /* It does not make sense to have a procedure linkage
4121 table entry for a local symbol. */
4122 info->callbacks->einfo (_("%P: %H: %s reloc against local symbol\n"),
4123 abfd, sec, rel->r_offset,
4124 ppc_elf_howto_table[r_type]->name);
4125 bfd_set_error (bfd_error_bad_value);
4132 if (r_type == R_PPC_PLTREL24)
4134 ppc_elf_tdata (abfd)->makes_plt_call = 1;
4136 addend = rel->r_addend;
4139 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
4144 /* The following relocations don't need to propagate the
4145 relocation if linking a shared object since they are
4146 section relative. */
4148 case R_PPC_SECTOFF_LO:
4149 case R_PPC_SECTOFF_HI:
4150 case R_PPC_SECTOFF_HA:
4151 case R_PPC_DTPREL16:
4152 case R_PPC_DTPREL16_LO:
4153 case R_PPC_DTPREL16_HI:
4154 case R_PPC_DTPREL16_HA:
4159 case R_PPC_REL16_LO:
4160 case R_PPC_REL16_HI:
4161 case R_PPC_REL16_HA:
4162 ppc_elf_tdata (abfd)->has_rel16 = 1;
4165 /* These are just markers. */
4167 case R_PPC_EMB_MRKREF:
4171 case R_PPC_RELAX_PLT:
4172 case R_PPC_RELAX_PLTREL24:
4175 /* These should only appear in dynamic objects. */
4177 case R_PPC_GLOB_DAT:
4178 case R_PPC_JMP_SLOT:
4179 case R_PPC_RELATIVE:
4180 case R_PPC_IRELATIVE:
4183 /* These aren't handled yet. We'll report an error later. */
4185 case R_PPC_EMB_RELSEC16:
4186 case R_PPC_EMB_RELST_LO:
4187 case R_PPC_EMB_RELST_HI:
4188 case R_PPC_EMB_RELST_HA:
4189 case R_PPC_EMB_BIT_FLD:
4192 /* This refers only to functions defined in the shared library. */
4193 case R_PPC_LOCAL24PC:
4194 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
4196 htab->plt_type = PLT_OLD;
4197 htab->old_bfd = abfd;
4201 /* This relocation describes the C++ object vtable hierarchy.
4202 Reconstruct it for later use during GC. */
4203 case R_PPC_GNU_VTINHERIT:
4204 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4208 /* This relocation describes which C++ vtable entries are actually
4209 used. Record for later use during GC. */
4210 case R_PPC_GNU_VTENTRY:
4211 BFD_ASSERT (h != NULL);
4213 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4217 /* We shouldn't really be seeing these. */
4220 case R_PPC_TPREL16_LO:
4221 case R_PPC_TPREL16_HI:
4222 case R_PPC_TPREL16_HA:
4223 if (!info->executable)
4224 info->flags |= DF_STATIC_TLS;
4228 case R_PPC_DTPMOD32:
4229 case R_PPC_DTPREL32:
4235 && (sec->flags & SEC_CODE) != 0
4237 && htab->plt_type == PLT_UNSET)
4239 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4240 the start of a function, which assembles to a REL32
4241 reference to .got2. If we detect one of these, then
4242 force the old PLT layout because the linker cannot
4243 reliably deduce the GOT pointer value needed for
4246 Elf_Internal_Sym *isym;
4248 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4253 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4256 htab->plt_type = PLT_OLD;
4257 htab->old_bfd = abfd;
4260 if (h == NULL || h == htab->elf.hgot)
4266 case R_PPC_ADDR16_LO:
4267 case R_PPC_ADDR16_HI:
4268 case R_PPC_ADDR16_HA:
4271 if (h != NULL && !info->shared)
4273 /* We may need a plt entry if the symbol turns out to be
4274 a function defined in a dynamic object. */
4275 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4278 /* We may need a copy reloc too. */
4280 h->pointer_equality_needed = 1;
4286 case R_PPC_REL14_BRTAKEN:
4287 case R_PPC_REL14_BRNTAKEN:
4290 if (h == htab->elf.hgot)
4292 if (htab->plt_type == PLT_UNSET)
4294 htab->plt_type = PLT_OLD;
4295 htab->old_bfd = abfd;
4303 case R_PPC_ADDR14_BRTAKEN:
4304 case R_PPC_ADDR14_BRNTAKEN:
4305 if (h != NULL && !info->shared)
4307 /* We may need a plt entry if the symbol turns out to be
4308 a function defined in a dynamic object. */
4310 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4316 /* If we are creating a shared library, and this is a reloc
4317 against a global symbol, or a non PC relative reloc
4318 against a local symbol, then we need to copy the reloc
4319 into the shared library. However, if we are linking with
4320 -Bsymbolic, we do not need to copy a reloc against a
4321 global symbol which is defined in an object we are
4322 including in the link (i.e., DEF_REGULAR is set). At
4323 this point we have not seen all the input files, so it is
4324 possible that DEF_REGULAR is not set now but will be set
4325 later (it is never cleared). In case of a weak definition,
4326 DEF_REGULAR may be cleared later by a strong definition in
4327 a shared library. We account for that possibility below by
4328 storing information in the dyn_relocs field of the hash
4329 table entry. A similar situation occurs when creating
4330 shared libraries and symbol visibility changes render the
4333 If on the other hand, we are creating an executable, we
4334 may need to keep relocations for symbols satisfied by a
4335 dynamic library if we manage to avoid copy relocs for the
4338 && (must_be_dyn_reloc (info, r_type)
4340 && (! info->symbolic
4341 || h->root.type == bfd_link_hash_defweak
4342 || !h->def_regular))))
4343 || (ELIMINATE_COPY_RELOCS
4346 && (h->root.type == bfd_link_hash_defweak
4347 || !h->def_regular)))
4349 struct elf_dyn_relocs *p;
4350 struct elf_dyn_relocs **rel_head;
4354 "ppc_elf_check_relocs needs to "
4355 "create relocation for %s\n",
4356 (h && h->root.root.string
4357 ? h->root.root.string : "<unknown>"));
4361 if (htab->elf.dynobj == NULL)
4362 htab->elf.dynobj = abfd;
4364 sreloc = _bfd_elf_make_dynamic_reloc_section
4365 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4371 /* If this is a global symbol, we count the number of
4372 relocations we need for this symbol. */
4375 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
4379 /* Track dynamic relocs needed for local syms too.
4380 We really need local syms available to do this
4384 Elf_Internal_Sym *isym;
4386 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4391 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4395 vpp = &elf_section_data (s)->local_dynrel;
4396 rel_head = (struct elf_dyn_relocs **) vpp;
4400 if (p == NULL || p->sec != sec)
4402 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4405 p->next = *rel_head;
4413 if (!must_be_dyn_reloc (info, r_type))
4425 /* Merge object attributes from IBFD into OBFD. Raise an error if
4426 there are conflicting attributes. */
4428 ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
4430 obj_attribute *in_attr, *in_attrs;
4431 obj_attribute *out_attr, *out_attrs;
4433 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4435 /* This is the first object. Copy the attributes. */
4436 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4438 /* Use the Tag_null value to indicate the attributes have been
4440 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4445 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4446 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4448 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
4449 non-conflicting ones. */
4450 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4451 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
4452 if (in_attr->i != out_attr->i)
4455 if (out_attr->i == 0)
4456 out_attr->i = in_attr->i;
4457 else if (in_attr->i == 0)
4459 else if (out_attr->i == 1 && in_attr->i == 2)
4461 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
4462 else if (out_attr->i == 1 && in_attr->i == 3)
4464 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4466 else if (out_attr->i == 3 && in_attr->i == 1)
4468 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
4470 else if (out_attr->i == 3 && in_attr->i == 2)
4472 (_("Warning: %B uses soft float, %B uses single-precision hard float"),
4474 else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3))
4476 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
4477 else if (in_attr->i > 3)
4479 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
4483 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
4487 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4488 merge non-conflicting ones. */
4489 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4490 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4491 if (in_attr->i != out_attr->i)
4493 const char *in_abi = NULL, *out_abi = NULL;
4497 case 1: in_abi = "generic"; break;
4498 case 2: in_abi = "AltiVec"; break;
4499 case 3: in_abi = "SPE"; break;
4502 switch (out_attr->i)
4504 case 1: out_abi = "generic"; break;
4505 case 2: out_abi = "AltiVec"; break;
4506 case 3: out_abi = "SPE"; break;
4510 if (out_attr->i == 0)
4511 out_attr->i = in_attr->i;
4512 else if (in_attr->i == 0)
4514 /* For now, allow generic to transition to AltiVec or SPE
4515 without a warning. If GCC marked files with their stack
4516 alignment and used don't-care markings for files which are
4517 not affected by the vector ABI, we could warn about this
4519 else if (out_attr->i == 1)
4520 out_attr->i = in_attr->i;
4521 else if (in_attr->i == 1)
4523 else if (in_abi == NULL)
4525 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
4527 else if (out_abi == NULL)
4529 (_("Warning: %B uses unknown vector ABI %d"), obfd,
4533 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
4534 ibfd, obfd, in_abi, out_abi);
4537 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4538 and merge non-conflicting ones. */
4539 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4540 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4541 if (in_attr->i != out_attr->i)
4544 if (out_attr->i == 0)
4545 out_attr->i = in_attr->i;
4546 else if (in_attr->i == 0)
4548 else if (out_attr->i == 1 && in_attr->i == 2)
4550 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd);
4551 else if (out_attr->i == 2 && in_attr->i == 1)
4553 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd);
4554 else if (in_attr->i > 2)
4556 (_("Warning: %B uses unknown small structure return convention %d"), ibfd,
4560 (_("Warning: %B uses unknown small structure return convention %d"), obfd,
4564 /* Merge Tag_compatibility attributes and any common GNU ones. */
4565 _bfd_elf_merge_object_attributes (ibfd, obfd);
4570 /* Merge backend specific data from an object file to the output
4571 object file when linking. */
4574 ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4580 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
4583 /* Check if we have the same endianness. */
4584 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
4587 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
4590 new_flags = elf_elfheader (ibfd)->e_flags;
4591 old_flags = elf_elfheader (obfd)->e_flags;
4592 if (!elf_flags_init (obfd))
4594 /* First call, no flags set. */
4595 elf_flags_init (obfd) = TRUE;
4596 elf_elfheader (obfd)->e_flags = new_flags;
4599 /* Compatible flags are ok. */
4600 else if (new_flags == old_flags)
4603 /* Incompatible flags. */
4606 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4607 to be linked with either. */
4609 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4610 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4613 (*_bfd_error_handler)
4614 (_("%B: compiled with -mrelocatable and linked with "
4615 "modules compiled normally"), ibfd);
4617 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4618 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4621 (*_bfd_error_handler)
4622 (_("%B: compiled normally and linked with "
4623 "modules compiled with -mrelocatable"), ibfd);
4626 /* The output is -mrelocatable-lib iff both the input files are. */
4627 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4628 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4630 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4631 but each input file is either -mrelocatable or -mrelocatable-lib. */
4632 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4633 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4634 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4635 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4637 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4638 any module uses it. */
4639 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4641 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4642 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4644 /* Warn about any other mismatches. */
4645 if (new_flags != old_flags)
4648 (*_bfd_error_handler)
4649 (_("%B: uses different e_flags (0x%lx) fields "
4650 "than previous modules (0x%lx)"),
4651 ibfd, (long) new_flags, (long) old_flags);
4656 bfd_set_error (bfd_error_bad_value);
4665 ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *contents,
4666 bfd_vma offset, bfd_vma relocation,
4667 split16_format_type split16_format)
4670 bfd_vma insn, top5, bottom11;
4672 insn = bfd_get_32 (output_bfd, contents + offset);
4673 top5 = relocation >> 11;
4674 top5 = top5 << (split16_format == split16a_type ? 20 : 16);
4675 bottom11 = relocation & 0x7ff;
4678 bfd_put_32 (output_bfd, insn, contents + offset);
4682 /* Choose which PLT scheme to use, and set .plt flags appropriately.
4683 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4685 ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
4686 struct bfd_link_info *info,
4687 enum ppc_elf_plt_type plt_style,
4690 struct ppc_elf_link_hash_table *htab;
4693 htab = ppc_elf_hash_table (info);
4695 htab->emit_stub_syms = emit_stub_syms;
4697 if (htab->plt_type == PLT_UNSET)
4699 struct elf_link_hash_entry *h;
4701 if (plt_style == PLT_OLD)
4702 htab->plt_type = PLT_OLD;
4703 else if (info->shared
4704 && htab->elf.dynamic_sections_created
4705 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
4706 FALSE, FALSE, TRUE)) != NULL
4707 && (h->type == STT_FUNC
4710 && !(SYMBOL_CALLS_LOCAL (info, h)
4711 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4712 && h->root.type == bfd_link_hash_undefweak)))
4714 /* Profiling of shared libs (and pies) is not supported with
4715 secure plt, because ppc32 does profiling before a
4716 function prologue and a secure plt pic call stubs needs
4717 r30 to be set up. */
4718 htab->plt_type = PLT_OLD;
4723 enum ppc_elf_plt_type plt_type = plt_style;
4725 /* Look through the reloc flags left by ppc_elf_check_relocs.
4726 Use the old style bss plt if a file makes plt calls
4727 without using the new relocs, and if ld isn't given
4728 --secure-plt and we never see REL16 relocs. */
4729 if (plt_type == PLT_UNSET)
4731 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
4732 if (is_ppc_elf (ibfd))
4734 if (ppc_elf_tdata (ibfd)->has_rel16)
4736 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
4739 htab->old_bfd = ibfd;
4743 htab->plt_type = plt_type;
4746 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
4748 if (htab->old_bfd != NULL)
4749 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
4752 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
4755 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
4757 if (htab->plt_type == PLT_NEW)
4759 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
4760 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4762 /* The new PLT is a loaded section. */
4763 if (htab->plt != NULL
4764 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
4767 /* The new GOT is not executable. */
4768 if (htab->got != NULL
4769 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
4774 /* Stop an unused .glink section from affecting .text alignment. */
4775 if (htab->glink != NULL
4776 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
4779 return htab->plt_type == PLT_NEW;
4782 /* Return the section that should be marked against GC for a given
4786 ppc_elf_gc_mark_hook (asection *sec,
4787 struct bfd_link_info *info,
4788 Elf_Internal_Rela *rel,
4789 struct elf_link_hash_entry *h,
4790 Elf_Internal_Sym *sym)
4793 switch (ELF32_R_TYPE (rel->r_info))
4795 case R_PPC_GNU_VTINHERIT:
4796 case R_PPC_GNU_VTENTRY:
4800 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4803 /* Update the got, plt and dynamic reloc reference counts for the
4804 section being removed. */
4807 ppc_elf_gc_sweep_hook (bfd *abfd,
4808 struct bfd_link_info *info,
4810 const Elf_Internal_Rela *relocs)
4812 struct ppc_elf_link_hash_table *htab;
4813 Elf_Internal_Shdr *symtab_hdr;
4814 struct elf_link_hash_entry **sym_hashes;
4815 bfd_signed_vma *local_got_refcounts;
4816 const Elf_Internal_Rela *rel, *relend;
4819 if (info->relocatable)
4822 if ((sec->flags & SEC_ALLOC) == 0)
4825 elf_section_data (sec)->local_dynrel = NULL;
4827 htab = ppc_elf_hash_table (info);
4828 symtab_hdr = &elf_symtab_hdr (abfd);
4829 sym_hashes = elf_sym_hashes (abfd);
4830 local_got_refcounts = elf_local_got_refcounts (abfd);
4831 got2 = bfd_get_section_by_name (abfd, ".got2");
4833 relend = relocs + sec->reloc_count;
4834 for (rel = relocs; rel < relend; rel++)
4836 unsigned long r_symndx;
4837 enum elf_ppc_reloc_type r_type;
4838 struct elf_link_hash_entry *h = NULL;
4840 r_symndx = ELF32_R_SYM (rel->r_info);
4841 if (r_symndx >= symtab_hdr->sh_info)
4843 struct elf_dyn_relocs **pp, *p;
4844 struct ppc_elf_link_hash_entry *eh;
4846 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4847 while (h->root.type == bfd_link_hash_indirect
4848 || h->root.type == bfd_link_hash_warning)
4849 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4850 eh = (struct ppc_elf_link_hash_entry *) h;
4852 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4855 /* Everything must go for SEC. */
4861 r_type = ELF32_R_TYPE (rel->r_info);
4862 if (!htab->is_vxworks
4864 && local_got_refcounts != NULL
4866 || is_branch_reloc (r_type)))
4868 struct plt_entry **local_plt = (struct plt_entry **)
4869 (local_got_refcounts + symtab_hdr->sh_info);
4870 char *local_got_tls_masks = (char *)
4871 (local_plt + symtab_hdr->sh_info);
4872 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
4874 struct plt_entry **ifunc = local_plt + r_symndx;
4876 struct plt_entry *ent;
4878 if (r_type == R_PPC_PLTREL24 && info->shared)
4879 addend = rel->r_addend;
4880 ent = find_plt_ent (ifunc, got2, addend);
4881 if (ent->plt.refcount > 0)
4882 ent->plt.refcount -= 1;
4889 case R_PPC_GOT_TLSLD16:
4890 case R_PPC_GOT_TLSLD16_LO:
4891 case R_PPC_GOT_TLSLD16_HI:
4892 case R_PPC_GOT_TLSLD16_HA:
4893 case R_PPC_GOT_TLSGD16:
4894 case R_PPC_GOT_TLSGD16_LO:
4895 case R_PPC_GOT_TLSGD16_HI:
4896 case R_PPC_GOT_TLSGD16_HA:
4897 case R_PPC_GOT_TPREL16:
4898 case R_PPC_GOT_TPREL16_LO:
4899 case R_PPC_GOT_TPREL16_HI:
4900 case R_PPC_GOT_TPREL16_HA:
4901 case R_PPC_GOT_DTPREL16:
4902 case R_PPC_GOT_DTPREL16_LO:
4903 case R_PPC_GOT_DTPREL16_HI:
4904 case R_PPC_GOT_DTPREL16_HA:
4906 case R_PPC_GOT16_LO:
4907 case R_PPC_GOT16_HI:
4908 case R_PPC_GOT16_HA:
4911 if (h->got.refcount > 0)
4915 struct plt_entry *ent;
4917 ent = find_plt_ent (&h->plt.plist, NULL, 0);
4918 if (ent != NULL && ent->plt.refcount > 0)
4919 ent->plt.refcount -= 1;
4922 else if (local_got_refcounts != NULL)
4924 if (local_got_refcounts[r_symndx] > 0)
4925 local_got_refcounts[r_symndx]--;
4931 case R_PPC_REL14_BRTAKEN:
4932 case R_PPC_REL14_BRNTAKEN:
4934 if (h == NULL || h == htab->elf.hgot)
4941 case R_PPC_ADDR16_LO:
4942 case R_PPC_ADDR16_HI:
4943 case R_PPC_ADDR16_HA:
4945 case R_PPC_ADDR14_BRTAKEN:
4946 case R_PPC_ADDR14_BRNTAKEN:
4953 case R_PPC_PLTREL24:
4954 case R_PPC_PLTREL32:
4955 case R_PPC_PLT16_LO:
4956 case R_PPC_PLT16_HI:
4957 case R_PPC_PLT16_HA:
4961 struct plt_entry *ent;
4963 if (r_type == R_PPC_PLTREL24 && info->shared)
4964 addend = rel->r_addend;
4965 ent = find_plt_ent (&h->plt.plist, got2, addend);
4966 if (ent != NULL && ent->plt.refcount > 0)
4967 ent->plt.refcount -= 1;
4978 /* Set plt output section type, htab->tls_get_addr, and call the
4979 generic ELF tls_setup function. */
4982 ppc_elf_tls_setup (bfd *obfd,
4983 struct bfd_link_info *info,
4984 int no_tls_get_addr_opt)
4986 struct ppc_elf_link_hash_table *htab;
4988 htab = ppc_elf_hash_table (info);
4989 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4990 FALSE, FALSE, TRUE);
4991 if (!no_tls_get_addr_opt)
4993 struct elf_link_hash_entry *opt, *tga;
4994 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
4995 FALSE, FALSE, TRUE);
4997 && (opt->root.type == bfd_link_hash_defined
4998 || opt->root.type == bfd_link_hash_defweak))
5000 /* If glibc supports an optimized __tls_get_addr call stub,
5001 signalled by the presence of __tls_get_addr_opt, and we'll
5002 be calling __tls_get_addr via a plt call stub, then
5003 make __tls_get_addr point to __tls_get_addr_opt. */
5004 tga = htab->tls_get_addr;
5005 if (htab->elf.dynamic_sections_created
5007 && (tga->type == STT_FUNC
5009 && !(SYMBOL_CALLS_LOCAL (info, tga)
5010 || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
5011 && tga->root.type == bfd_link_hash_undefweak)))
5013 struct plt_entry *ent;
5014 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5015 if (ent->plt.refcount > 0)
5019 tga->root.type = bfd_link_hash_indirect;
5020 tga->root.u.i.link = &opt->root;
5021 ppc_elf_copy_indirect_symbol (info, opt, tga);
5022 if (opt->dynindx != -1)
5024 /* Use __tls_get_addr_opt in dynamic relocations. */
5026 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5028 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5031 htab->tls_get_addr = opt;
5036 no_tls_get_addr_opt = TRUE;
5038 htab->no_tls_get_addr_opt = no_tls_get_addr_opt;
5039 if (htab->plt_type == PLT_NEW
5040 && htab->plt != NULL
5041 && htab->plt->output_section != NULL)
5043 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
5044 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
5047 return _bfd_elf_tls_setup (obfd, info);
5050 /* Return TRUE iff REL is a branch reloc with a global symbol matching
5054 branch_reloc_hash_match (const bfd *ibfd,
5055 const Elf_Internal_Rela *rel,
5056 const struct elf_link_hash_entry *hash)
5058 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5059 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5060 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5062 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
5064 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5065 struct elf_link_hash_entry *h;
5067 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5068 while (h->root.type == bfd_link_hash_indirect
5069 || h->root.type == bfd_link_hash_warning)
5070 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5077 /* Run through all the TLS relocs looking for optimization
5081 ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5082 struct bfd_link_info *info)
5086 struct ppc_elf_link_hash_table *htab;
5089 if (info->relocatable || !info->executable)
5092 htab = ppc_elf_hash_table (info);
5096 /* Make two passes through the relocs. First time check that tls
5097 relocs involved in setting up a tls_get_addr call are indeed
5098 followed by such a call. If they are not, don't do any tls
5099 optimization. On the second pass twiddle tls_mask flags to
5100 notify relocate_section that optimization can be done, and
5101 adjust got and plt refcounts. */
5102 for (pass = 0; pass < 2; ++pass)
5103 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5105 Elf_Internal_Sym *locsyms = NULL;
5106 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5107 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
5109 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5110 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5112 Elf_Internal_Rela *relstart, *rel, *relend;
5113 int expecting_tls_get_addr = 0;
5115 /* Read the relocations. */
5116 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5118 if (relstart == NULL)
5121 relend = relstart + sec->reloc_count;
5122 for (rel = relstart; rel < relend; rel++)
5124 enum elf_ppc_reloc_type r_type;
5125 unsigned long r_symndx;
5126 struct elf_link_hash_entry *h = NULL;
5128 char tls_set, tls_clear;
5129 bfd_boolean is_local;
5130 bfd_signed_vma *got_count;
5132 r_symndx = ELF32_R_SYM (rel->r_info);
5133 if (r_symndx >= symtab_hdr->sh_info)
5135 struct elf_link_hash_entry **sym_hashes;
5137 sym_hashes = elf_sym_hashes (ibfd);
5138 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5139 while (h->root.type == bfd_link_hash_indirect
5140 || h->root.type == bfd_link_hash_warning)
5141 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5149 r_type = ELF32_R_TYPE (rel->r_info);
5150 /* If this section has old-style __tls_get_addr calls
5151 without marker relocs, then check that each
5152 __tls_get_addr call reloc is preceded by a reloc
5153 that conceivably belongs to the __tls_get_addr arg
5154 setup insn. If we don't find matching arg setup
5155 relocs, don't do any tls optimization. */
5157 && sec->has_tls_get_addr_call
5159 && h == htab->tls_get_addr
5160 && !expecting_tls_get_addr
5161 && is_branch_reloc (r_type))
5163 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
5164 "TLS optimization disabled\n",
5165 ibfd, sec, rel->r_offset);
5166 if (elf_section_data (sec)->relocs != relstart)
5171 expecting_tls_get_addr = 0;
5174 case R_PPC_GOT_TLSLD16:
5175 case R_PPC_GOT_TLSLD16_LO:
5176 expecting_tls_get_addr = 1;
5179 case R_PPC_GOT_TLSLD16_HI:
5180 case R_PPC_GOT_TLSLD16_HA:
5181 /* These relocs should never be against a symbol
5182 defined in a shared lib. Leave them alone if
5183 that turns out to be the case. */
5192 case R_PPC_GOT_TLSGD16:
5193 case R_PPC_GOT_TLSGD16_LO:
5194 expecting_tls_get_addr = 1;
5197 case R_PPC_GOT_TLSGD16_HI:
5198 case R_PPC_GOT_TLSGD16_HA:
5204 tls_set = TLS_TLS | TLS_TPRELGD;
5208 case R_PPC_GOT_TPREL16:
5209 case R_PPC_GOT_TPREL16_LO:
5210 case R_PPC_GOT_TPREL16_HI:
5211 case R_PPC_GOT_TPREL16_HA:
5216 tls_clear = TLS_TPREL;
5224 expecting_tls_get_addr = 2;
5235 if (!expecting_tls_get_addr
5236 || (expecting_tls_get_addr == 1
5237 && !sec->has_tls_get_addr_call))
5240 if (rel + 1 < relend
5241 && branch_reloc_hash_match (ibfd, rel + 1,
5242 htab->tls_get_addr))
5245 /* Uh oh, we didn't find the expected call. We
5246 could just mark this symbol to exclude it
5247 from tls optimization but it's safer to skip
5248 the entire optimization. */
5249 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
5250 "TLS optimization disabled\n"),
5251 ibfd, sec, rel->r_offset);
5252 if (elf_section_data (sec)->relocs != relstart)
5257 if (expecting_tls_get_addr)
5259 struct plt_entry *ent;
5263 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5264 addend = rel[1].r_addend;
5265 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5267 if (ent != NULL && ent->plt.refcount > 0)
5268 ent->plt.refcount -= 1;
5270 if (expecting_tls_get_addr == 2)
5276 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5277 got_count = &h->got.refcount;
5281 bfd_signed_vma *lgot_refs;
5282 struct plt_entry **local_plt;
5285 if (locsyms == NULL)
5287 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5288 if (locsyms == NULL)
5289 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5290 symtab_hdr->sh_info,
5291 0, NULL, NULL, NULL);
5292 if (locsyms == NULL)
5294 if (elf_section_data (sec)->relocs != relstart)
5299 lgot_refs = elf_local_got_refcounts (ibfd);
5300 if (lgot_refs == NULL)
5302 local_plt = (struct plt_entry **)
5303 (lgot_refs + symtab_hdr->sh_info);
5304 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
5305 tls_mask = &lgot_masks[r_symndx];
5306 got_count = &lgot_refs[r_symndx];
5311 /* We managed to get rid of a got entry. */
5316 *tls_mask |= tls_set;
5317 *tls_mask &= ~tls_clear;
5320 if (elf_section_data (sec)->relocs != relstart)
5325 && (symtab_hdr->contents != (unsigned char *) locsyms))
5327 if (!info->keep_memory)
5330 symtab_hdr->contents = (unsigned char *) locsyms;
5336 /* Return true if we have dynamic relocs that apply to read-only sections. */
5339 readonly_dynrelocs (struct elf_link_hash_entry *h)
5341 struct elf_dyn_relocs *p;
5343 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5345 asection *s = p->sec->output_section;
5348 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5349 == (SEC_READONLY | SEC_ALLOC)))
5355 /* Adjust a symbol defined by a dynamic object and referenced by a
5356 regular object. The current definition is in some section of the
5357 dynamic object, but we're not including those sections. We have to
5358 change the definition to something the rest of the link can
5362 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5363 struct elf_link_hash_entry *h)
5365 struct ppc_elf_link_hash_table *htab;
5369 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5370 h->root.root.string);
5373 /* Make sure we know what is going on here. */
5374 htab = ppc_elf_hash_table (info);
5375 BFD_ASSERT (htab->elf.dynobj != NULL
5377 || h->type == STT_GNU_IFUNC
5378 || h->u.weakdef != NULL
5381 && !h->def_regular)));
5383 /* Deal with function syms. */
5384 if (h->type == STT_FUNC
5385 || h->type == STT_GNU_IFUNC
5388 /* Clear procedure linkage table information for any symbol that
5389 won't need a .plt entry. */
5390 struct plt_entry *ent;
5391 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5392 if (ent->plt.refcount > 0)
5395 || (h->type != STT_GNU_IFUNC
5396 && (SYMBOL_CALLS_LOCAL (info, h)
5397 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5398 && h->root.type == bfd_link_hash_undefweak))))
5400 /* A PLT entry is not required/allowed when:
5402 1. We are not using ld.so; because then the PLT entry
5403 can't be set up, so we can't use one. In this case,
5404 ppc_elf_adjust_dynamic_symbol won't even be called.
5406 2. GC has rendered the entry unused.
5408 3. We know for certain that a call to this symbol
5409 will go to this object, or will remain undefined. */
5410 h->plt.plist = NULL;
5415 /* After adjust_dynamic_symbol, non_got_ref set in the
5416 non-shared case means that we have allocated space in
5417 .dynbss for the symbol and thus dyn_relocs for this
5418 symbol should be discarded.
5419 If we get here we know we are making a PLT entry for this
5420 symbol, and in an executable we'd normally resolve
5421 relocations against this symbol to the PLT entry. Allow
5422 dynamic relocs if the reference is weak, and the dynamic
5423 relocs will not cause text relocation. */
5424 if (!h->ref_regular_nonweak
5426 && h->type != STT_GNU_IFUNC
5427 && !htab->is_vxworks
5428 && !ppc_elf_hash_entry (h)->has_sda_refs
5429 && !readonly_dynrelocs (h))
5435 h->plt.plist = NULL;
5437 /* If this is a weak symbol, and there is a real definition, the
5438 processor independent code will have arranged for us to see the
5439 real definition first, and we can just use the same value. */
5440 if (h->u.weakdef != NULL)
5442 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5443 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5444 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5445 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5446 if (ELIMINATE_COPY_RELOCS)
5447 h->non_got_ref = h->u.weakdef->non_got_ref;
5451 /* This is a reference to a symbol defined by a dynamic object which
5452 is not a function. */
5454 /* If we are creating a shared library, we must presume that the
5455 only references to the symbol are via the global offset table.
5456 For such cases we need not do anything here; the relocations will
5457 be handled correctly by relocate_section. */
5461 /* If there are no references to this symbol that do not use the
5462 GOT, we don't need to generate a copy reloc. */
5463 if (!h->non_got_ref)
5466 /* If we didn't find any dynamic relocs in read-only sections, then
5467 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5468 We can't do this if there are any small data relocations. This
5469 doesn't work on VxWorks, where we can not have dynamic
5470 relocations (other than copy and jump slot relocations) in an
5472 if (ELIMINATE_COPY_RELOCS
5473 && !ppc_elf_hash_entry (h)->has_sda_refs
5474 && !htab->is_vxworks
5476 && !readonly_dynrelocs (h))
5482 /* We must allocate the symbol in our .dynbss section, which will
5483 become part of the .bss section of the executable. There will be
5484 an entry for this symbol in the .dynsym section. The dynamic
5485 object will contain position independent code, so all references
5486 from the dynamic object to this symbol will go through the global
5487 offset table. The dynamic linker will use the .dynsym entry to
5488 determine the address it must put in the global offset table, so
5489 both the dynamic object and the regular object will refer to the
5490 same memory location for the variable.
5492 Of course, if the symbol is referenced using SDAREL relocs, we
5493 must instead allocate it in .sbss. */
5495 if (ppc_elf_hash_entry (h)->has_sda_refs)
5499 BFD_ASSERT (s != NULL);
5501 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5502 copy the initial value out of the dynamic object and into the
5503 runtime process image. We need to remember the offset into the
5504 .rela.bss section we are going to use. */
5505 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
5509 if (ppc_elf_hash_entry (h)->has_sda_refs)
5510 srel = htab->relsbss;
5512 srel = htab->relbss;
5513 BFD_ASSERT (srel != NULL);
5514 srel->size += sizeof (Elf32_External_Rela);
5518 return _bfd_elf_adjust_dynamic_copy (h, s);
5521 /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5522 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5523 specifying the addend on the plt relocation. For -fpic code, the sym
5524 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5525 xxxxxxxx.got2.plt_pic32.<callee>. */
5528 add_stub_sym (struct plt_entry *ent,
5529 struct elf_link_hash_entry *h,
5530 struct bfd_link_info *info)
5532 struct elf_link_hash_entry *sh;
5533 size_t len1, len2, len3;
5536 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5539 stub = ".plt_pic32.";
5541 stub = ".plt_call32.";
5543 len1 = strlen (h->root.root.string);
5544 len2 = strlen (stub);
5547 len3 = strlen (ent->sec->name);
5548 name = bfd_malloc (len1 + len2 + len3 + 9);
5551 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5553 memcpy (name + 8, ent->sec->name, len3);
5554 memcpy (name + 8 + len3, stub, len2);
5555 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
5556 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5559 if (sh->root.type == bfd_link_hash_new)
5561 sh->root.type = bfd_link_hash_defined;
5562 sh->root.u.def.section = htab->glink;
5563 sh->root.u.def.value = ent->glink_offset;
5564 sh->ref_regular = 1;
5565 sh->def_regular = 1;
5566 sh->ref_regular_nonweak = 1;
5567 sh->forced_local = 1;
5573 /* Allocate NEED contiguous space in .got, and return the offset.
5574 Handles allocation of the got header when crossing 32k. */
5577 allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5580 unsigned int max_before_header;
5582 if (htab->plt_type == PLT_VXWORKS)
5584 where = htab->got->size;
5585 htab->got->size += need;
5589 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5590 if (need <= htab->got_gap)
5592 where = max_before_header - htab->got_gap;
5593 htab->got_gap -= need;
5597 if (htab->got->size + need > max_before_header
5598 && htab->got->size <= max_before_header)
5600 htab->got_gap = max_before_header - htab->got->size;
5601 htab->got->size = max_before_header + htab->got_header_size;
5603 where = htab->got->size;
5604 htab->got->size += need;
5610 /* Allocate space in associated reloc sections for dynamic relocs. */
5613 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5615 struct bfd_link_info *info = inf;
5616 struct ppc_elf_link_hash_entry *eh;
5617 struct ppc_elf_link_hash_table *htab;
5618 struct elf_dyn_relocs *p;
5620 if (h->root.type == bfd_link_hash_indirect)
5623 htab = ppc_elf_hash_table (info);
5624 if (htab->elf.dynamic_sections_created
5625 || h->type == STT_GNU_IFUNC)
5627 struct plt_entry *ent;
5628 bfd_boolean doneone = FALSE;
5629 bfd_vma plt_offset = 0, glink_offset = 0;
5632 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5633 if (ent->plt.refcount > 0)
5635 /* Make sure this symbol is output as a dynamic symbol. */
5636 if (h->dynindx == -1
5639 && htab->elf.dynamic_sections_created)
5641 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5645 dyn = htab->elf.dynamic_sections_created;
5647 || h->type == STT_GNU_IFUNC
5648 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5650 asection *s = htab->plt;
5651 if (!dyn || h->dynindx == -1)
5654 if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
5658 plt_offset = s->size;
5661 ent->plt.offset = plt_offset;
5664 if (!doneone || info->shared)
5666 glink_offset = s->size;
5667 s->size += GLINK_ENTRY_SIZE;
5668 if (h == htab->tls_get_addr
5669 && !htab->no_tls_get_addr_opt)
5670 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
5677 h->root.u.def.section = s;
5678 h->root.u.def.value = glink_offset;
5680 ent->glink_offset = glink_offset;
5682 if (htab->emit_stub_syms
5683 && !add_stub_sym (ent, h, info))
5690 /* If this is the first .plt entry, make room
5691 for the special first entry. */
5693 s->size += htab->plt_initial_entry_size;
5695 /* The PowerPC PLT is actually composed of two
5696 parts, the first part is 2 words (for a load
5697 and a jump), and then there is a remaining
5698 word available at the end. */
5699 plt_offset = (htab->plt_initial_entry_size
5700 + (htab->plt_slot_size
5702 - htab->plt_initial_entry_size)
5703 / htab->plt_entry_size)));
5705 /* If this symbol is not defined in a regular
5706 file, and we are not generating a shared
5707 library, then set the symbol to this location
5708 in the .plt. This is to avoid text
5709 relocations, and is required to make
5710 function pointers compare as equal between
5711 the normal executable and the shared library. */
5716 h->root.u.def.section = s;
5717 h->root.u.def.value = plt_offset;
5720 /* Make room for this entry. */
5721 s->size += htab->plt_entry_size;
5722 /* After the 8192nd entry, room for two entries
5724 if (htab->plt_type == PLT_OLD
5725 && (s->size - htab->plt_initial_entry_size)
5726 / htab->plt_entry_size
5727 > PLT_NUM_SINGLE_ENTRIES)
5728 s->size += htab->plt_entry_size;
5730 ent->plt.offset = plt_offset;
5733 /* We also need to make an entry in the .rela.plt section. */
5736 if (!htab->elf.dynamic_sections_created
5737 || h->dynindx == -1)
5738 htab->reliplt->size += sizeof (Elf32_External_Rela);
5741 htab->relplt->size += sizeof (Elf32_External_Rela);
5743 if (htab->plt_type == PLT_VXWORKS)
5745 /* Allocate space for the unloaded relocations. */
5747 && htab->elf.dynamic_sections_created)
5750 == (bfd_vma) htab->plt_initial_entry_size)
5752 htab->srelplt2->size
5753 += (sizeof (Elf32_External_Rela)
5754 * VXWORKS_PLTRESOLVE_RELOCS);
5757 htab->srelplt2->size
5758 += (sizeof (Elf32_External_Rela)
5759 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
5762 /* Every PLT entry has an associated GOT entry in
5764 htab->sgotplt->size += 4;
5771 ent->plt.offset = (bfd_vma) -1;
5774 ent->plt.offset = (bfd_vma) -1;
5778 h->plt.plist = NULL;
5784 h->plt.plist = NULL;
5788 eh = (struct ppc_elf_link_hash_entry *) h;
5789 if (eh->elf.got.refcount > 0)
5794 /* Make sure this symbol is output as a dynamic symbol. */
5795 if (eh->elf.dynindx == -1
5796 && !eh->elf.forced_local
5797 && eh->elf.type != STT_GNU_IFUNC
5798 && htab->elf.dynamic_sections_created)
5800 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
5805 if ((eh->tls_mask & TLS_TLS) != 0)
5807 if ((eh->tls_mask & TLS_LD) != 0)
5809 if (!eh->elf.def_dynamic)
5810 /* We'll just use htab->tlsld_got.offset. This should
5811 always be the case. It's a little odd if we have
5812 a local dynamic reloc against a non-local symbol. */
5813 htab->tlsld_got.refcount += 1;
5817 if ((eh->tls_mask & TLS_GD) != 0)
5819 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
5821 if ((eh->tls_mask & TLS_DTPREL) != 0)
5827 eh->elf.got.offset = (bfd_vma) -1;
5830 eh->elf.got.offset = allocate_got (htab, need);
5831 dyn = htab->elf.dynamic_sections_created;
5833 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
5834 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
5835 || eh->elf.root.type != bfd_link_hash_undefweak))
5837 asection *rsec = htab->relgot;
5838 /* All the entries we allocated need relocs.
5839 Except LD only needs one. */
5840 if ((eh->tls_mask & TLS_LD) != 0
5841 && eh->elf.def_dynamic)
5843 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
5848 eh->elf.got.offset = (bfd_vma) -1;
5850 if (eh->dyn_relocs == NULL
5851 || !htab->elf.dynamic_sections_created)
5854 /* In the shared -Bsymbolic case, discard space allocated for
5855 dynamic pc-relative relocs against symbols which turn out to be
5856 defined in regular objects. For the normal shared case, discard
5857 space for relocs that have become local due to symbol visibility
5862 /* Relocs that use pc_count are those that appear on a call insn,
5863 or certain REL relocs (see must_be_dyn_reloc) that can be
5864 generated via assembly. We want calls to protected symbols to
5865 resolve directly to the function rather than going via the plt.
5866 If people want function pointer comparisons to work as expected
5867 then they should avoid writing weird assembly. */
5868 if (SYMBOL_CALLS_LOCAL (info, h))
5870 struct elf_dyn_relocs **pp;
5872 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5874 p->count -= p->pc_count;
5883 if (htab->is_vxworks)
5885 struct elf_dyn_relocs **pp;
5887 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5889 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
5896 /* Discard relocs on undefined symbols that must be local. */
5897 if (eh->dyn_relocs != NULL
5898 && h->root.type == bfd_link_hash_undefined
5899 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
5900 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
5901 eh->dyn_relocs = NULL;
5903 /* Also discard relocs on undefined weak syms with non-default
5905 if (eh->dyn_relocs != NULL
5906 && h->root.type == bfd_link_hash_undefweak)
5908 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
5909 eh->dyn_relocs = NULL;
5911 /* Make sure undefined weak symbols are output as a dynamic
5913 else if (h->dynindx == -1
5917 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5922 else if (ELIMINATE_COPY_RELOCS)
5924 /* For the non-shared case, discard space for relocs against
5925 symbols which turn out to need copy relocs or are not
5931 /* Make sure this symbol is output as a dynamic symbol.
5932 Undefined weak syms won't yet be marked as dynamic. */
5933 if (h->dynindx == -1
5934 && !h->forced_local)
5936 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5940 /* If that succeeded, we know we'll be keeping all the
5942 if (h->dynindx != -1)
5946 eh->dyn_relocs = NULL;
5951 /* Finally, allocate space. */
5952 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5954 asection *sreloc = elf_section_data (p->sec)->sreloc;
5955 if (!htab->elf.dynamic_sections_created)
5956 sreloc = htab->reliplt;
5957 sreloc->size += p->count * sizeof (Elf32_External_Rela);
5963 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
5964 read-only sections. */
5967 maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
5969 if (h->root.type == bfd_link_hash_indirect)
5972 if (readonly_dynrelocs (h))
5974 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
5976 /* Not an error, just cut short the traversal. */
5982 static const unsigned char glink_eh_frame_cie[] =
5984 0, 0, 0, 16, /* length. */
5985 0, 0, 0, 0, /* id. */
5986 1, /* CIE version. */
5987 'z', 'R', 0, /* Augmentation string. */
5988 4, /* Code alignment. */
5989 0x7c, /* Data alignment. */
5991 1, /* Augmentation size. */
5992 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
5993 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
5996 /* Set the sizes of the dynamic sections. */
5999 ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
6000 struct bfd_link_info *info)
6002 struct ppc_elf_link_hash_table *htab;
6008 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
6011 htab = ppc_elf_hash_table (info);
6012 BFD_ASSERT (htab->elf.dynobj != NULL);
6014 if (elf_hash_table (info)->dynamic_sections_created)
6016 /* Set the contents of the .interp section to the interpreter. */
6017 if (info->executable)
6019 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
6020 BFD_ASSERT (s != NULL);
6021 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6022 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6026 if (htab->plt_type == PLT_OLD)
6027 htab->got_header_size = 16;
6028 else if (htab->plt_type == PLT_NEW)
6029 htab->got_header_size = 12;
6031 /* Set up .got offsets for local syms, and space for local dynamic
6033 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6035 bfd_signed_vma *local_got;
6036 bfd_signed_vma *end_local_got;
6037 struct plt_entry **local_plt;
6038 struct plt_entry **end_local_plt;
6040 bfd_size_type locsymcount;
6041 Elf_Internal_Shdr *symtab_hdr;
6043 if (!is_ppc_elf (ibfd))
6046 for (s = ibfd->sections; s != NULL; s = s->next)
6048 struct elf_dyn_relocs *p;
6050 for (p = ((struct elf_dyn_relocs *)
6051 elf_section_data (s)->local_dynrel);
6055 if (!bfd_is_abs_section (p->sec)
6056 && bfd_is_abs_section (p->sec->output_section))
6058 /* Input section has been discarded, either because
6059 it is a copy of a linkonce section or due to
6060 linker script /DISCARD/, so we'll be discarding
6063 else if (htab->is_vxworks
6064 && strcmp (p->sec->output_section->name,
6067 /* Relocations in vxworks .tls_vars sections are
6068 handled specially by the loader. */
6070 else if (p->count != 0)
6072 asection *sreloc = elf_section_data (p->sec)->sreloc;
6073 if (!htab->elf.dynamic_sections_created)
6074 sreloc = htab->reliplt;
6075 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6076 if ((p->sec->output_section->flags
6077 & (SEC_READONLY | SEC_ALLOC))
6078 == (SEC_READONLY | SEC_ALLOC))
6079 info->flags |= DF_TEXTREL;
6084 local_got = elf_local_got_refcounts (ibfd);
6088 symtab_hdr = &elf_symtab_hdr (ibfd);
6089 locsymcount = symtab_hdr->sh_info;
6090 end_local_got = local_got + locsymcount;
6091 local_plt = (struct plt_entry **) end_local_got;
6092 end_local_plt = local_plt + locsymcount;
6093 lgot_masks = (char *) end_local_plt;
6095 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6098 unsigned int need = 0;
6099 if ((*lgot_masks & TLS_TLS) != 0)
6101 if ((*lgot_masks & TLS_GD) != 0)
6103 if ((*lgot_masks & TLS_LD) != 0)
6104 htab->tlsld_got.refcount += 1;
6105 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6107 if ((*lgot_masks & TLS_DTPREL) != 0)
6113 *local_got = (bfd_vma) -1;
6116 *local_got = allocate_got (htab, need);
6118 htab->relgot->size += (need
6119 * (sizeof (Elf32_External_Rela) / 4));
6123 *local_got = (bfd_vma) -1;
6125 if (htab->is_vxworks)
6128 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6129 for (; local_plt < end_local_plt; ++local_plt)
6131 struct plt_entry *ent;
6132 bfd_boolean doneone = FALSE;
6133 bfd_vma plt_offset = 0, glink_offset = 0;
6135 for (ent = *local_plt; ent != NULL; ent = ent->next)
6136 if (ent->plt.refcount > 0)
6142 plt_offset = s->size;
6145 ent->plt.offset = plt_offset;
6148 if (!doneone || info->shared)
6150 glink_offset = s->size;
6151 s->size += GLINK_ENTRY_SIZE;
6153 ent->glink_offset = glink_offset;
6157 htab->reliplt->size += sizeof (Elf32_External_Rela);
6162 ent->plt.offset = (bfd_vma) -1;
6166 /* Allocate space for global sym dynamic relocs. */
6167 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6169 if (htab->tlsld_got.refcount > 0)
6171 htab->tlsld_got.offset = allocate_got (htab, 8);
6173 htab->relgot->size += sizeof (Elf32_External_Rela);
6176 htab->tlsld_got.offset = (bfd_vma) -1;
6178 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
6180 unsigned int g_o_t = 32768;
6182 /* If we haven't allocated the header, do so now. When we get here,
6183 for old plt/got the got size will be 0 to 32764 (not allocated),
6184 or 32780 to 65536 (header allocated). For new plt/got, the
6185 corresponding ranges are 0 to 32768 and 32780 to 65536. */
6186 if (htab->got->size <= 32768)
6188 g_o_t = htab->got->size;
6189 if (htab->plt_type == PLT_OLD)
6191 htab->got->size += htab->got_header_size;
6194 htab->elf.hgot->root.u.def.value = g_o_t;
6198 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6200 && !(sda->root.type == bfd_link_hash_defined
6201 || sda->root.type == bfd_link_hash_defweak))
6203 sda->root.type = bfd_link_hash_defined;
6204 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6205 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
6209 if (htab->glink != NULL
6210 && htab->glink->size != 0
6211 && htab->elf.dynamic_sections_created)
6213 htab->glink_pltresolve = htab->glink->size;
6214 /* Space for the branch table. */
6215 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6216 /* Pad out to align the start of PLTresolve. */
6217 htab->glink->size += -htab->glink->size & 15;
6218 htab->glink->size += GLINK_PLTRESOLVE;
6220 if (htab->emit_stub_syms)
6222 struct elf_link_hash_entry *sh;
6223 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6224 TRUE, FALSE, FALSE);
6227 if (sh->root.type == bfd_link_hash_new)
6229 sh->root.type = bfd_link_hash_defined;
6230 sh->root.u.def.section = htab->glink;
6231 sh->root.u.def.value = htab->glink_pltresolve;
6232 sh->ref_regular = 1;
6233 sh->def_regular = 1;
6234 sh->ref_regular_nonweak = 1;
6235 sh->forced_local = 1;
6238 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6239 TRUE, FALSE, FALSE);
6242 if (sh->root.type == bfd_link_hash_new)
6244 sh->root.type = bfd_link_hash_defined;
6245 sh->root.u.def.section = htab->glink;
6246 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6247 sh->ref_regular = 1;
6248 sh->def_regular = 1;
6249 sh->ref_regular_nonweak = 1;
6250 sh->forced_local = 1;
6256 if (htab->glink != NULL
6257 && htab->glink->size != 0
6258 && htab->glink_eh_frame != NULL
6259 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6260 && _bfd_elf_eh_frame_present (info))
6262 s = htab->glink_eh_frame;
6263 s->size = sizeof (glink_eh_frame_cie) + 20;
6267 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6272 /* We've now determined the sizes of the various dynamic sections.
6273 Allocate memory for them. */
6275 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
6277 bfd_boolean strip_section = TRUE;
6279 if ((s->flags & SEC_LINKER_CREATED) == 0)
6285 /* We'd like to strip these sections if they aren't needed, but if
6286 we've exported dynamic symbols from them we must leave them.
6287 It's too late to tell BFD to get rid of the symbols. */
6288 if (htab->elf.hplt != NULL)
6289 strip_section = FALSE;
6290 /* Strip this section if we don't need it; see the
6293 else if (s == htab->iplt
6295 || s == htab->glink_eh_frame
6296 || s == htab->sgotplt
6298 || s == htab->dynbss
6299 || s == htab->dynsbss
6300 || s == htab->sdata[0].section
6301 || s == htab->sdata[1].section)
6303 /* Strip these too. */
6305 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6310 /* Remember whether there are any relocation sections. */
6313 /* We use the reloc_count field as a counter if we need
6314 to copy relocs into the output file. */
6320 /* It's not one of our sections, so don't allocate space. */
6324 if (s->size == 0 && strip_section)
6326 /* If we don't need this section, strip it from the
6327 output file. This is mostly to handle .rela.bss and
6328 .rela.plt. We must create both sections in
6329 create_dynamic_sections, because they must be created
6330 before the linker maps input sections to output
6331 sections. The linker does that before
6332 adjust_dynamic_symbol is called, and it is that
6333 function which decides whether anything needs to go
6334 into these sections. */
6335 s->flags |= SEC_EXCLUDE;
6339 if ((s->flags & SEC_HAS_CONTENTS) == 0)
6342 /* Allocate memory for the section contents. */
6343 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6344 if (s->contents == NULL)
6348 if (htab->elf.dynamic_sections_created)
6350 /* Add some entries to the .dynamic section. We fill in the
6351 values later, in ppc_elf_finish_dynamic_sections, but we
6352 must add the entries now so that we get the correct size for
6353 the .dynamic section. The DT_DEBUG entry is filled in by the
6354 dynamic linker and used by the debugger. */
6355 #define add_dynamic_entry(TAG, VAL) \
6356 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6358 if (info->executable)
6360 if (!add_dynamic_entry (DT_DEBUG, 0))
6364 if (htab->plt != NULL && htab->plt->size != 0)
6366 if (!add_dynamic_entry (DT_PLTGOT, 0)
6367 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6368 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6369 || !add_dynamic_entry (DT_JMPREL, 0))
6373 if (htab->glink != NULL && htab->glink->size != 0)
6375 if (!add_dynamic_entry (DT_PPC_GOT, 0))
6377 if (!htab->no_tls_get_addr_opt
6378 && htab->tls_get_addr != NULL
6379 && htab->tls_get_addr->plt.plist != NULL
6380 && !add_dynamic_entry (DT_PPC_TLSOPT, 0))
6386 if (!add_dynamic_entry (DT_RELA, 0)
6387 || !add_dynamic_entry (DT_RELASZ, 0)
6388 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6392 /* If any dynamic relocs apply to a read-only section, then we
6393 need a DT_TEXTREL entry. */
6394 if ((info->flags & DF_TEXTREL) == 0)
6395 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
6398 if ((info->flags & DF_TEXTREL) != 0)
6400 if (!add_dynamic_entry (DT_TEXTREL, 0))
6403 if (htab->is_vxworks
6404 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6407 #undef add_dynamic_entry
6409 if (htab->glink_eh_frame != NULL
6410 && htab->glink_eh_frame->contents != NULL)
6412 unsigned char *p = htab->glink_eh_frame->contents;
6415 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6416 /* CIE length (rewrite in case little-endian). */
6417 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6418 p += sizeof (glink_eh_frame_cie);
6420 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6421 bfd_put_32 (htab->elf.dynobj, val, p);
6424 val = p - htab->glink_eh_frame->contents;
6425 bfd_put_32 (htab->elf.dynobj, val, p);
6427 /* Offset to .glink. Set later. */
6430 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6436 && htab->elf.dynamic_sections_created)
6438 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6440 *p++ = DW_CFA_advance_loc + adv;
6443 *p++ = DW_CFA_advance_loc1;
6446 else if (adv < 65536)
6448 *p++ = DW_CFA_advance_loc2;
6449 bfd_put_16 (htab->elf.dynobj, adv, p);
6454 *p++ = DW_CFA_advance_loc4;
6455 bfd_put_32 (htab->elf.dynobj, adv, p);
6458 *p++ = DW_CFA_register;
6461 *p++ = DW_CFA_advance_loc + 4;
6462 *p++ = DW_CFA_restore_extended;
6465 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6466 == htab->glink_eh_frame->size);
6472 /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6475 ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6477 if (h->plt.plist != NULL
6479 && (!h->pointer_equality_needed
6480 || !h->ref_regular_nonweak))
6483 return _bfd_elf_hash_symbol (h);
6486 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6488 /* Relaxation trampolines. r12 is available for clobbering (r11, is
6489 used for some functions that are allowed to break the ABI). */
6490 static const int shared_stub_entry[] =
6492 0x7c0802a6, /* mflr 0 */
6493 0x429f0005, /* bcl 20, 31, .Lxxx */
6494 0x7d8802a6, /* mflr 12 */
6495 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
6496 0x398c0008, /* addi 12, 12, (xxx-.Lxxx)@l */
6497 0x7c0803a6, /* mtlr 0 */
6498 0x7d8903a6, /* mtctr 12 */
6499 0x4e800420, /* bctr */
6502 static const int stub_entry[] =
6504 0x3d800000, /* lis 12,xxx@ha */
6505 0x398c0000, /* addi 12,12,xxx@l */
6506 0x7d8903a6, /* mtctr 12 */
6507 0x4e800420, /* bctr */
6511 ppc_elf_relax_section (bfd *abfd,
6513 struct bfd_link_info *link_info,
6518 struct one_fixup *next;
6520 /* Final link, can use the symbol offset. For a
6521 relocatable link we use the symbol's index. */
6526 Elf_Internal_Shdr *symtab_hdr;
6527 bfd_byte *contents = NULL;
6528 Elf_Internal_Sym *isymbuf = NULL;
6529 Elf_Internal_Rela *internal_relocs = NULL;
6530 Elf_Internal_Rela *irel, *irelend;
6531 struct one_fixup *fixups = NULL;
6532 unsigned changes = 0;
6533 struct ppc_elf_link_hash_table *htab;
6534 bfd_size_type trampoff;
6536 bfd_boolean maybe_pasted;
6540 /* Nothing to do if there are no relocations, and no need to do
6541 anything with non-alloc or non-code sections. */
6542 if ((isec->flags & SEC_ALLOC) == 0
6543 || (isec->flags & SEC_CODE) == 0
6544 || (isec->flags & SEC_RELOC) == 0
6545 || isec->reloc_count == 0)
6548 /* We cannot represent the required PIC relocs in the output, so don't
6549 do anything. The linker doesn't support mixing -shared and -r
6551 if (link_info->relocatable && link_info->shared)
6554 trampoff = (isec->size + 3) & (bfd_vma) -4;
6555 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6556 || strcmp (isec->output_section->name, ".fini") == 0);
6557 /* Space for a branch around any trampolines. */
6561 symtab_hdr = &elf_symtab_hdr (abfd);
6563 /* Get a copy of the native relocations. */
6564 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6565 link_info->keep_memory);
6566 if (internal_relocs == NULL)
6569 htab = ppc_elf_hash_table (link_info);
6570 got2 = bfd_get_section_by_name (abfd, ".got2");
6572 irelend = internal_relocs + isec->reloc_count;
6573 for (irel = internal_relocs; irel < irelend; irel++)
6575 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
6578 struct one_fixup *f;
6579 size_t insn_offset = 0;
6580 bfd_vma max_branch_offset, val;
6583 struct elf_link_hash_entry *h;
6584 struct plt_entry **plist;
6585 unsigned char sym_type;
6590 case R_PPC_LOCAL24PC:
6591 case R_PPC_PLTREL24:
6592 max_branch_offset = 1 << 25;
6596 case R_PPC_REL14_BRTAKEN:
6597 case R_PPC_REL14_BRNTAKEN:
6598 max_branch_offset = 1 << 15;
6605 /* Get the value of the symbol referred to by the reloc. */
6607 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
6609 /* A local symbol. */
6610 Elf_Internal_Sym *isym;
6612 /* Read this BFD's local symbols. */
6613 if (isymbuf == NULL)
6615 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
6616 if (isymbuf == NULL)
6617 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
6618 symtab_hdr->sh_info, 0,
6623 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6624 if (isym->st_shndx == SHN_UNDEF)
6625 tsec = bfd_und_section_ptr;
6626 else if (isym->st_shndx == SHN_ABS)
6627 tsec = bfd_abs_section_ptr;
6628 else if (isym->st_shndx == SHN_COMMON)
6629 tsec = bfd_com_section_ptr;
6631 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
6633 toff = isym->st_value;
6634 sym_type = ELF_ST_TYPE (isym->st_info);
6638 /* Global symbol handling. */
6641 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6642 h = elf_sym_hashes (abfd)[indx];
6644 while (h->root.type == bfd_link_hash_indirect
6645 || h->root.type == bfd_link_hash_warning)
6646 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6648 if (h->root.type == bfd_link_hash_defined
6649 || h->root.type == bfd_link_hash_defweak)
6651 tsec = h->root.u.def.section;
6652 toff = h->root.u.def.value;
6654 else if (h->root.type == bfd_link_hash_undefined
6655 || h->root.type == bfd_link_hash_undefweak)
6657 tsec = bfd_und_section_ptr;
6658 toff = link_info->relocatable ? indx : 0;
6666 /* The condition here under which we call find_plt_ent must
6667 match that in relocate_section. If we call find_plt_ent here
6668 but not in relocate_section, or vice versa, then the branch
6669 destination used here may be incorrect. */
6673 /* We know is_branch_reloc (r_type) is true. */
6674 if (h->type == STT_GNU_IFUNC
6675 || r_type == R_PPC_PLTREL24)
6676 plist = &h->plt.plist;
6678 else if (sym_type == STT_GNU_IFUNC
6679 && elf_local_got_offsets (abfd) != NULL)
6681 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6682 struct plt_entry **local_plt = (struct plt_entry **)
6683 (local_got_offsets + symtab_hdr->sh_info);
6684 plist = local_plt + ELF32_R_SYM (irel->r_info);
6689 struct plt_entry *ent;
6691 if (r_type == R_PPC_PLTREL24 && link_info->shared)
6692 addend = irel->r_addend;
6693 ent = find_plt_ent (plist, got2, addend);
6696 if (htab->plt_type == PLT_NEW
6698 || !htab->elf.dynamic_sections_created
6699 || h->dynindx == -1)
6702 toff = ent->glink_offset;
6707 toff = ent->plt.offset;
6712 /* If the branch and target are in the same section, you have
6713 no hope of adding stubs. We'll error out later should the
6718 /* There probably isn't any reason to handle symbols in
6719 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
6720 attribute for a code section, and we are only looking at
6721 branches. However, implement it correctly here as a
6722 reference for other target relax_section functions. */
6723 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
6725 /* At this stage in linking, no SEC_MERGE symbol has been
6726 adjusted, so all references to such symbols need to be
6727 passed through _bfd_merged_section_offset. (Later, in
6728 relocate_section, all SEC_MERGE symbols *except* for
6729 section symbols have been adjusted.)
6731 gas may reduce relocations against symbols in SEC_MERGE
6732 sections to a relocation against the section symbol when
6733 the original addend was zero. When the reloc is against
6734 a section symbol we should include the addend in the
6735 offset passed to _bfd_merged_section_offset, since the
6736 location of interest is the original symbol. On the
6737 other hand, an access to "sym+addend" where "sym" is not
6738 a section symbol should not include the addend; Such an
6739 access is presumed to be an offset from "sym"; The
6740 location of interest is just "sym". */
6741 if (sym_type == STT_SECTION)
6742 toff += irel->r_addend;
6744 toff = _bfd_merged_section_offset (abfd, &tsec,
6745 elf_section_data (tsec)->sec_info,
6748 if (sym_type != STT_SECTION)
6749 toff += irel->r_addend;
6751 /* PLTREL24 addends are special. */
6752 else if (r_type != R_PPC_PLTREL24)
6753 toff += irel->r_addend;
6755 /* Attempted -shared link of non-pic code loses. */
6756 if (tsec->output_section == NULL)
6759 roff = irel->r_offset;
6761 /* If the branch is in range, no need to do anything. */
6762 if (tsec != bfd_und_section_ptr
6763 && (!link_info->relocatable
6764 /* A relocatable link may have sections moved during
6765 final link, so do not presume they remain in range. */
6766 || tsec->output_section == isec->output_section))
6768 bfd_vma symaddr, reladdr;
6770 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
6771 reladdr = isec->output_section->vma + isec->output_offset + roff;
6772 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
6776 /* Look for an existing fixup to this address. */
6777 for (f = fixups; f ; f = f->next)
6778 if (f->tsec == tsec && f->toff == toff)
6784 unsigned long stub_rtype;
6786 val = trampoff - roff;
6787 if (val >= max_branch_offset)
6788 /* Oh dear, we can't reach a trampoline. Don't try to add
6789 one. We'll report an error later. */
6792 if (link_info->shared)
6794 size = 4 * ARRAY_SIZE (shared_stub_entry);
6799 size = 4 * ARRAY_SIZE (stub_entry);
6802 stub_rtype = R_PPC_RELAX;
6803 if (tsec == htab->plt
6804 || tsec == htab->glink)
6806 stub_rtype = R_PPC_RELAX_PLT;
6807 if (r_type == R_PPC_PLTREL24)
6808 stub_rtype = R_PPC_RELAX_PLTREL24;
6811 /* Hijack the old relocation. Since we need two
6812 relocations for this use a "composite" reloc. */
6813 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
6815 irel->r_offset = trampoff + insn_offset;
6816 if (r_type == R_PPC_PLTREL24
6817 && stub_rtype != R_PPC_RELAX_PLTREL24)
6820 /* Record the fixup so we don't do it again this section. */
6821 f = bfd_malloc (sizeof (*f));
6825 f->trampoff = trampoff;
6833 val = f->trampoff - roff;
6834 if (val >= max_branch_offset)
6837 /* Nop out the reloc, since we're finalizing things here. */
6838 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
6841 /* Get the section contents. */
6842 if (contents == NULL)
6844 /* Get cached copy if it exists. */
6845 if (elf_section_data (isec)->this_hdr.contents != NULL)
6846 contents = elf_section_data (isec)->this_hdr.contents;
6849 /* Go get them off disk. */
6850 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
6855 /* Fix up the existing branch to hit the trampoline. */
6856 hit_addr = contents + roff;
6860 case R_PPC_LOCAL24PC:
6861 case R_PPC_PLTREL24:
6862 t0 = bfd_get_32 (abfd, hit_addr);
6864 t0 |= val & 0x3fffffc;
6865 bfd_put_32 (abfd, t0, hit_addr);
6869 case R_PPC_REL14_BRTAKEN:
6870 case R_PPC_REL14_BRNTAKEN:
6871 t0 = bfd_get_32 (abfd, hit_addr);
6874 bfd_put_32 (abfd, t0, hit_addr);
6879 /* Write out the trampolines. */
6888 struct one_fixup *f = fixups;
6889 fixups = fixups->next;
6894 contents = bfd_realloc_or_free (contents, trampoff);
6895 if (contents == NULL)
6898 isec->size = (isec->size + 3) & (bfd_vma) -4;
6899 dest = contents + isec->size;
6900 /* Branch around the trampolines. */
6903 bfd_vma val = B + trampoff - isec->size;
6904 bfd_put_32 (abfd, val, dest);
6907 isec->size = trampoff;
6909 if (link_info->shared)
6911 stub = shared_stub_entry;
6912 size = ARRAY_SIZE (shared_stub_entry);
6917 size = ARRAY_SIZE (stub_entry);
6921 while (dest < contents + trampoff)
6923 bfd_put_32 (abfd, stub[i], dest);
6929 BFD_ASSERT (i == 0);
6933 && symtab_hdr->contents != (unsigned char *) isymbuf)
6935 if (! link_info->keep_memory)
6939 /* Cache the symbols for elf_link_input_bfd. */
6940 symtab_hdr->contents = (unsigned char *) isymbuf;
6944 if (contents != NULL
6945 && elf_section_data (isec)->this_hdr.contents != contents)
6947 if (!changes && !link_info->keep_memory)
6951 /* Cache the section contents for elf_link_input_bfd. */
6952 elf_section_data (isec)->this_hdr.contents = contents;
6958 /* Append sufficient NOP relocs so we can write out relocation
6959 information for the trampolines. */
6960 Elf_Internal_Shdr *rel_hdr;
6961 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
6962 * sizeof (*new_relocs));
6967 memcpy (new_relocs, internal_relocs,
6968 isec->reloc_count * sizeof (*new_relocs));
6969 for (ix = changes; ix--;)
6971 irel = new_relocs + ix + isec->reloc_count;
6973 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
6975 if (internal_relocs != elf_section_data (isec)->relocs)
6976 free (internal_relocs);
6977 elf_section_data (isec)->relocs = new_relocs;
6978 isec->reloc_count += changes;
6979 rel_hdr = _bfd_elf_single_rel_hdr (isec);
6980 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
6982 else if (elf_section_data (isec)->relocs != internal_relocs)
6983 free (internal_relocs);
6985 *again = changes != 0;
6986 if (!*again && link_info->relocatable)
6988 /* Convert the internal relax relocs to external form. */
6989 for (irel = internal_relocs; irel < irelend; irel++)
6990 if (ELF32_R_TYPE (irel->r_info) == R_PPC_RELAX)
6992 unsigned long r_symndx = ELF32_R_SYM (irel->r_info);
6994 /* Rewrite the reloc and convert one of the trailing nop
6995 relocs to describe this relocation. */
6996 BFD_ASSERT (ELF32_R_TYPE (irelend[-1].r_info) == R_PPC_NONE);
6997 /* The relocs are at the bottom 2 bytes */
6998 irel[0].r_offset += 2;
6999 memmove (irel + 1, irel, (irelend - irel - 1) * sizeof (*irel));
7000 irel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
7001 irel[1].r_offset += 4;
7002 irel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
7010 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7012 if (contents != NULL
7013 && elf_section_data (isec)->this_hdr.contents != contents)
7015 if (internal_relocs != NULL
7016 && elf_section_data (isec)->relocs != internal_relocs)
7017 free (internal_relocs);
7021 /* What to do when ld finds relocations against symbols defined in
7022 discarded sections. */
7025 ppc_elf_action_discarded (asection *sec)
7027 if (strcmp (".fixup", sec->name) == 0)
7030 if (strcmp (".got2", sec->name) == 0)
7033 return _bfd_elf_default_action_discarded (sec);
7036 /* Fill in the address for a pointer generated in a linker section. */
7039 elf_finish_pointer_linker_section (bfd *input_bfd,
7040 elf_linker_section_t *lsect,
7041 struct elf_link_hash_entry *h,
7043 const Elf_Internal_Rela *rel)
7045 elf_linker_section_pointers_t *linker_section_ptr;
7047 BFD_ASSERT (lsect != NULL);
7051 /* Handle global symbol. */
7052 struct ppc_elf_link_hash_entry *eh;
7054 eh = (struct ppc_elf_link_hash_entry *) h;
7055 BFD_ASSERT (eh->elf.def_regular);
7056 linker_section_ptr = eh->linker_section_pointer;
7060 /* Handle local symbol. */
7061 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
7063 BFD_ASSERT (is_ppc_elf (input_bfd));
7064 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
7065 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7068 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7071 BFD_ASSERT (linker_section_ptr != NULL);
7073 /* Offset will always be a multiple of four, so use the bottom bit
7074 as a "written" flag. */
7075 if ((linker_section_ptr->offset & 1) == 0)
7077 bfd_put_32 (lsect->section->owner,
7078 relocation + linker_section_ptr->addend,
7079 lsect->section->contents + linker_section_ptr->offset);
7080 linker_section_ptr->offset += 1;
7083 relocation = (lsect->section->output_section->vma
7084 + lsect->section->output_offset
7085 + linker_section_ptr->offset - 1
7086 - SYM_VAL (lsect->sym));
7090 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7091 lsect->name, (long) relocation, (long) relocation);
7097 #define PPC_LO(v) ((v) & 0xffff)
7098 #define PPC_HI(v) (((v) >> 16) & 0xffff)
7099 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
7102 write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
7103 struct bfd_link_info *info)
7105 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7106 bfd *output_bfd = info->output_bfd;
7109 plt = ((ent->plt.offset & ~1)
7110 + plt_sec->output_section->vma
7111 + plt_sec->output_offset);
7117 if (ent->addend >= 32768)
7119 + ent->sec->output_section->vma
7120 + ent->sec->output_offset);
7121 else if (htab->elf.hgot != NULL)
7122 got = SYM_VAL (htab->elf.hgot);
7126 if (plt + 0x8000 < 0x10000)
7128 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7130 bfd_put_32 (output_bfd, MTCTR_11, p);
7132 bfd_put_32 (output_bfd, BCTR, p);
7134 bfd_put_32 (output_bfd, NOP, p);
7139 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7141 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7143 bfd_put_32 (output_bfd, MTCTR_11, p);
7145 bfd_put_32 (output_bfd, BCTR, p);
7151 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7153 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7155 bfd_put_32 (output_bfd, MTCTR_11, p);
7157 bfd_put_32 (output_bfd, BCTR, p);
7162 /* Return true if symbol is defined statically. */
7165 is_static_defined (struct elf_link_hash_entry *h)
7167 return ((h->root.type == bfd_link_hash_defined
7168 || h->root.type == bfd_link_hash_defweak)
7169 && h->root.u.def.section != NULL
7170 && h->root.u.def.section->output_section != NULL);
7173 /* If INSN is an opcode that may be used with an @tls operand, return
7174 the transformed insn for TLS optimisation, otherwise return 0. If
7175 REG is non-zero only match an insn with RB or RA equal to REG. */
7178 _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7182 if ((insn & (0x3f << 26)) != 31 << 26)
7185 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7186 rtra = insn & ((1 << 26) - (1 << 16));
7187 else if (((insn >> 16) & 0x1f) == reg)
7188 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7192 if ((insn & (0x3ff << 1)) == 266 << 1)
7195 else if ((insn & (0x1f << 1)) == 23 << 1
7196 && ((insn & (0x1f << 6)) < 14 << 6
7197 || ((insn & (0x1f << 6)) >= 16 << 6
7198 && (insn & (0x1f << 6)) < 24 << 6)))
7199 /* load and store indexed -> dform. */
7200 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7201 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7202 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7203 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7204 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7206 insn = (58 << 26) | 2;
7213 /* If INSN is an opcode that may be used with an @tprel operand, return
7214 the transformed insn for an undefined weak symbol, ie. with the
7215 thread pointer REG operand removed. Otherwise return 0. */
7218 _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7220 if ((insn & (0x1f << 16)) == reg << 16
7221 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7222 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7223 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7224 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7225 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7226 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7227 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7228 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7229 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7230 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7231 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7232 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7233 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7234 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7235 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7236 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7238 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7239 && ((insn & 3) == 0 || (insn & 3) == 3))))
7241 insn &= ~(0x1f << 16);
7243 else if ((insn & (0x1f << 21)) == reg << 21
7244 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7245 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7246 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7248 insn &= ~(0x1f << 21);
7249 insn |= (insn & (0x1f << 16)) << 5;
7250 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7251 insn -= 2 >> 26; /* convert to ori,oris */
7259 is_insn_ds_form (unsigned int insn)
7261 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7262 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7263 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7264 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7268 is_insn_dq_form (unsigned int insn)
7270 return (insn & (0x3f << 26)) == 56u << 26; /* lq */
7273 /* The RELOCATE_SECTION function is called by the ELF backend linker
7274 to handle the relocations for a section.
7276 The relocs are always passed as Rela structures; if the section
7277 actually uses Rel structures, the r_addend field will always be
7280 This function is responsible for adjust the section contents as
7281 necessary, and (if using Rela relocs and generating a
7282 relocatable output file) adjusting the reloc addend as
7285 This function does not have to worry about setting the reloc
7286 address or the reloc symbol index.
7288 LOCAL_SYMS is a pointer to the swapped in local symbols.
7290 LOCAL_SECTIONS is an array giving the section in the input file
7291 corresponding to the st_shndx field of each local symbol.
7293 The global hash table entry for the global symbols can be found
7294 via elf_sym_hashes (input_bfd).
7296 When generating relocatable output, this function must handle
7297 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7298 going to be the section symbol corresponding to the output
7299 section, which means that the addend must be adjusted
7303 ppc_elf_relocate_section (bfd *output_bfd,
7304 struct bfd_link_info *info,
7306 asection *input_section,
7308 Elf_Internal_Rela *relocs,
7309 Elf_Internal_Sym *local_syms,
7310 asection **local_sections)
7312 Elf_Internal_Shdr *symtab_hdr;
7313 struct elf_link_hash_entry **sym_hashes;
7314 struct ppc_elf_link_hash_table *htab;
7315 Elf_Internal_Rela *rel;
7316 Elf_Internal_Rela *relend;
7317 Elf_Internal_Rela outrel;
7318 asection *got2, *sreloc = NULL;
7319 bfd_vma *local_got_offsets;
7320 bfd_boolean ret = TRUE;
7321 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
7322 bfd_boolean is_vxworks_tls;
7325 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7326 "%ld relocations%s",
7327 input_bfd, input_section,
7328 (long) input_section->reloc_count,
7329 (info->relocatable) ? " (relocatable)" : "");
7332 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7334 /* Initialize howto table if not already done. */
7335 if (!ppc_elf_howto_table[R_PPC_ADDR32])
7336 ppc_elf_howto_init ();
7338 htab = ppc_elf_hash_table (info);
7339 local_got_offsets = elf_local_got_offsets (input_bfd);
7340 symtab_hdr = &elf_symtab_hdr (input_bfd);
7341 sym_hashes = elf_sym_hashes (input_bfd);
7342 /* We have to handle relocations in vxworks .tls_vars sections
7343 specially, because the dynamic loader is 'weird'. */
7344 is_vxworks_tls = (htab->is_vxworks && info->shared
7345 && !strcmp (input_section->output_section->name,
7348 relend = relocs + input_section->reloc_count;
7349 for (; rel < relend; rel++)
7351 enum elf_ppc_reloc_type r_type;
7353 bfd_reloc_status_type r;
7354 Elf_Internal_Sym *sym;
7356 struct elf_link_hash_entry *h;
7357 const char *sym_name;
7358 reloc_howto_type *howto;
7359 unsigned long r_symndx;
7361 bfd_vma branch_bit, from;
7362 bfd_boolean unresolved_reloc;
7364 unsigned int tls_type, tls_mask, tls_gd;
7365 struct plt_entry **ifunc;
7367 r_type = ELF32_R_TYPE (rel->r_info);
7371 unresolved_reloc = FALSE;
7373 r_symndx = ELF32_R_SYM (rel->r_info);
7375 if (r_symndx < symtab_hdr->sh_info)
7377 sym = local_syms + r_symndx;
7378 sec = local_sections[r_symndx];
7379 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
7381 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
7385 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7386 r_symndx, symtab_hdr, sym_hashes,
7388 unresolved_reloc, warned);
7390 sym_name = h->root.root.string;
7393 if (sec != NULL && discarded_section (sec))
7395 /* For relocs against symbols from removed linkonce sections,
7396 or sections discarded by a linker script, we just want the
7397 section contents zeroed. Avoid any special processing. */
7399 if (r_type < R_PPC_max)
7400 howto = ppc_elf_howto_table[r_type];
7401 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
7402 rel, 1, relend, howto, 0, contents);
7405 if (info->relocatable)
7408 && r_type == R_PPC_PLTREL24
7409 && rel->r_addend >= 32768)
7411 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7412 addend specifies the GOT pointer offset within .got2. */
7413 rel->r_addend += got2->output_offset;
7418 /* TLS optimizations. Replace instruction sequences and relocs
7419 based on information we collected in tls_optimize. We edit
7420 RELOCS so that --emit-relocs will output something sensible
7421 for the final instruction stream. */
7425 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7426 else if (local_got_offsets != NULL)
7428 struct plt_entry **local_plt;
7431 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7432 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
7433 tls_mask = lgot_masks[r_symndx];
7436 /* Ensure reloc mapping code below stays sane. */
7437 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7438 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7439 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7440 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7441 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7442 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7443 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7444 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7451 case R_PPC_GOT_TPREL16:
7452 case R_PPC_GOT_TPREL16_LO:
7453 if ((tls_mask & TLS_TLS) != 0
7454 && (tls_mask & TLS_TPREL) == 0)
7458 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
7460 insn |= 0x3c020000; /* addis 0,2,0 */
7461 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
7462 r_type = R_PPC_TPREL16_HA;
7463 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7468 if ((tls_mask & TLS_TLS) != 0
7469 && (tls_mask & TLS_TPREL) == 0)
7473 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7474 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7477 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7478 r_type = R_PPC_TPREL16_LO;
7479 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7481 /* Was PPC_TLS which sits on insn boundary, now
7482 PPC_TPREL16_LO which is at low-order half-word. */
7483 rel->r_offset += d_offset;
7487 case R_PPC_GOT_TLSGD16_HI:
7488 case R_PPC_GOT_TLSGD16_HA:
7489 tls_gd = TLS_TPRELGD;
7490 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7494 case R_PPC_GOT_TLSLD16_HI:
7495 case R_PPC_GOT_TLSLD16_HA:
7496 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7499 if ((tls_mask & tls_gd) != 0)
7500 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7501 + R_PPC_GOT_TPREL16);
7504 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7505 rel->r_offset -= d_offset;
7506 r_type = R_PPC_NONE;
7508 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7512 case R_PPC_GOT_TLSGD16:
7513 case R_PPC_GOT_TLSGD16_LO:
7514 tls_gd = TLS_TPRELGD;
7515 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7519 case R_PPC_GOT_TLSLD16:
7520 case R_PPC_GOT_TLSLD16_LO:
7521 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7523 unsigned int insn1, insn2;
7527 offset = (bfd_vma) -1;
7528 /* If not using the newer R_PPC_TLSGD/LD to mark
7529 __tls_get_addr calls, we must trust that the call
7530 stays with its arg setup insns, ie. that the next
7531 reloc is the __tls_get_addr call associated with
7532 the current reloc. Edit both insns. */
7533 if (input_section->has_tls_get_addr_call
7535 && branch_reloc_hash_match (input_bfd, rel + 1,
7536 htab->tls_get_addr))
7537 offset = rel[1].r_offset;
7538 if ((tls_mask & tls_gd) != 0)
7541 insn1 = bfd_get_32 (output_bfd,
7542 contents + rel->r_offset - d_offset);
7543 insn1 &= (1 << 26) - 1;
7544 insn1 |= 32 << 26; /* lwz */
7545 if (offset != (bfd_vma) -1)
7547 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7548 insn2 = 0x7c631214; /* add 3,3,2 */
7549 bfd_put_32 (output_bfd, insn2, contents + offset);
7551 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7552 + R_PPC_GOT_TPREL16);
7553 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7558 insn1 = 0x3c620000; /* addis 3,2,0 */
7561 /* Was an LD reloc. */
7563 r_symndx < symtab_hdr->sh_info;
7565 if (local_sections[r_symndx] == sec)
7567 if (r_symndx >= symtab_hdr->sh_info)
7568 r_symndx = STN_UNDEF;
7569 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7570 if (r_symndx != STN_UNDEF)
7571 rel->r_addend -= (local_syms[r_symndx].st_value
7572 + sec->output_offset
7573 + sec->output_section->vma);
7575 r_type = R_PPC_TPREL16_HA;
7576 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7577 if (offset != (bfd_vma) -1)
7579 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7580 rel[1].r_offset = offset + d_offset;
7581 rel[1].r_addend = rel->r_addend;
7582 insn2 = 0x38630000; /* addi 3,3,0 */
7583 bfd_put_32 (output_bfd, insn2, contents + offset);
7586 bfd_put_32 (output_bfd, insn1,
7587 contents + rel->r_offset - d_offset);
7590 /* We changed the symbol on an LD reloc. Start over
7591 in order to get h, sym, sec etc. right. */
7599 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7602 bfd_vma offset = rel->r_offset;
7604 if ((tls_mask & TLS_TPRELGD) != 0)
7607 r_type = R_PPC_NONE;
7608 insn2 = 0x7c631214; /* add 3,3,2 */
7613 r_type = R_PPC_TPREL16_LO;
7614 rel->r_offset += d_offset;
7615 insn2 = 0x38630000; /* addi 3,3,0 */
7617 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7618 bfd_put_32 (output_bfd, insn2, contents + offset);
7619 /* Zap the reloc on the _tls_get_addr call too. */
7620 BFD_ASSERT (offset == rel[1].r_offset);
7621 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7626 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7631 r_symndx < symtab_hdr->sh_info;
7633 if (local_sections[r_symndx] == sec)
7635 if (r_symndx >= symtab_hdr->sh_info)
7636 r_symndx = STN_UNDEF;
7637 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7638 if (r_symndx != STN_UNDEF)
7639 rel->r_addend -= (local_syms[r_symndx].st_value
7640 + sec->output_offset
7641 + sec->output_section->vma);
7643 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7644 rel->r_offset += d_offset;
7645 insn2 = 0x38630000; /* addi 3,3,0 */
7646 bfd_put_32 (output_bfd, insn2,
7647 contents + rel->r_offset - d_offset);
7648 /* Zap the reloc on the _tls_get_addr call too. */
7649 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
7650 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
7657 /* Handle other relocations that tweak non-addend part of insn. */
7664 /* Branch taken prediction relocations. */
7665 case R_PPC_ADDR14_BRTAKEN:
7666 case R_PPC_REL14_BRTAKEN:
7667 branch_bit = BRANCH_PREDICT_BIT;
7670 /* Branch not taken prediction relocations. */
7671 case R_PPC_ADDR14_BRNTAKEN:
7672 case R_PPC_REL14_BRNTAKEN:
7676 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7677 insn &= ~BRANCH_PREDICT_BIT;
7680 from = (rel->r_offset
7681 + input_section->output_offset
7682 + input_section->output_section->vma);
7684 /* Invert 'y' bit if not the default. */
7685 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
7686 insn ^= BRANCH_PREDICT_BIT;
7688 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7694 if (!htab->is_vxworks)
7696 struct plt_entry *ent;
7700 if (h->type == STT_GNU_IFUNC)
7701 ifunc = &h->plt.plist;
7703 else if (local_got_offsets != NULL
7704 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
7706 struct plt_entry **local_plt;
7708 local_plt = (struct plt_entry **) (local_got_offsets
7709 + symtab_hdr->sh_info);
7710 ifunc = local_plt + r_symndx;
7716 || is_branch_reloc (r_type)))
7719 if (r_type == R_PPC_PLTREL24 && info->shared)
7720 addend = rel->r_addend;
7721 ent = find_plt_ent (ifunc, got2, addend);
7725 if (h == NULL && (ent->plt.offset & 1) == 0)
7727 Elf_Internal_Rela rela;
7730 rela.r_offset = (htab->iplt->output_section->vma
7731 + htab->iplt->output_offset
7733 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
7734 rela.r_addend = relocation;
7735 loc = htab->reliplt->contents;
7736 loc += (htab->reliplt->reloc_count++
7737 * sizeof (Elf32_External_Rela));
7738 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7740 ent->plt.offset |= 1;
7742 if (h == NULL && (ent->glink_offset & 1) == 0)
7744 unsigned char *p = ((unsigned char *) htab->glink->contents
7745 + ent->glink_offset);
7746 write_glink_stub (ent, htab->iplt, p, info);
7747 ent->glink_offset |= 1;
7750 unresolved_reloc = FALSE;
7751 if (htab->plt_type == PLT_NEW
7752 || !htab->elf.dynamic_sections_created
7754 relocation = (htab->glink->output_section->vma
7755 + htab->glink->output_offset
7756 + (ent->glink_offset & ~1));
7758 relocation = (htab->plt->output_section->vma
7759 + htab->plt->output_offset
7764 addend = rel->r_addend;
7767 if (r_type < R_PPC_max)
7768 howto = ppc_elf_howto_table[r_type];
7772 info->callbacks->einfo
7773 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
7774 input_bfd, (int) r_type, sym_name);
7776 bfd_set_error (bfd_error_bad_value);
7784 case R_PPC_EMB_MRKREF:
7785 case R_PPC_GNU_VTINHERIT:
7786 case R_PPC_GNU_VTENTRY:
7789 /* GOT16 relocations. Like an ADDR16 using the symbol's
7790 address in the GOT as relocation value instead of the
7791 symbol's value itself. Also, create a GOT entry for the
7792 symbol and put the symbol value there. */
7793 case R_PPC_GOT_TLSGD16:
7794 case R_PPC_GOT_TLSGD16_LO:
7795 case R_PPC_GOT_TLSGD16_HI:
7796 case R_PPC_GOT_TLSGD16_HA:
7797 tls_type = TLS_TLS | TLS_GD;
7800 case R_PPC_GOT_TLSLD16:
7801 case R_PPC_GOT_TLSLD16_LO:
7802 case R_PPC_GOT_TLSLD16_HI:
7803 case R_PPC_GOT_TLSLD16_HA:
7804 tls_type = TLS_TLS | TLS_LD;
7807 case R_PPC_GOT_TPREL16:
7808 case R_PPC_GOT_TPREL16_LO:
7809 case R_PPC_GOT_TPREL16_HI:
7810 case R_PPC_GOT_TPREL16_HA:
7811 tls_type = TLS_TLS | TLS_TPREL;
7814 case R_PPC_GOT_DTPREL16:
7815 case R_PPC_GOT_DTPREL16_LO:
7816 case R_PPC_GOT_DTPREL16_HI:
7817 case R_PPC_GOT_DTPREL16_HA:
7818 tls_type = TLS_TLS | TLS_DTPREL;
7822 case R_PPC_GOT16_LO:
7823 case R_PPC_GOT16_HI:
7824 case R_PPC_GOT16_HA:
7828 /* Relocation is to the entry for this symbol in the global
7834 if (htab->got == NULL)
7838 if (tls_type == (TLS_TLS | TLS_LD)
7840 || !h->def_dynamic))
7841 offp = &htab->tlsld_got.offset;
7845 dyn = htab->elf.dynamic_sections_created;
7846 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7848 && SYMBOL_REFERENCES_LOCAL (info, h)))
7849 /* This is actually a static link, or it is a
7850 -Bsymbolic link and the symbol is defined
7851 locally, or the symbol was forced to be local
7852 because of a version file. */
7856 BFD_ASSERT (h->dynindx != -1);
7858 unresolved_reloc = FALSE;
7860 offp = &h->got.offset;
7864 if (local_got_offsets == NULL)
7866 offp = &local_got_offsets[r_symndx];
7869 /* The offset must always be a multiple of 4. We use the
7870 least significant bit to record whether we have already
7871 processed this entry. */
7877 unsigned int tls_m = (tls_mask
7878 & (TLS_LD | TLS_GD | TLS_DTPREL
7879 | TLS_TPREL | TLS_TPRELGD));
7881 if (offp == &htab->tlsld_got.offset)
7887 /* We might have multiple got entries for this sym.
7888 Initialize them all. */
7893 if ((tls_m & TLS_LD) != 0)
7895 tls_ty = TLS_TLS | TLS_LD;
7898 else if ((tls_m & TLS_GD) != 0)
7900 tls_ty = TLS_TLS | TLS_GD;
7903 else if ((tls_m & TLS_DTPREL) != 0)
7905 tls_ty = TLS_TLS | TLS_DTPREL;
7906 tls_m &= ~TLS_DTPREL;
7908 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
7910 tls_ty = TLS_TLS | TLS_TPREL;
7914 /* Generate relocs for the dynamic linker. */
7915 if ((info->shared || indx != 0)
7916 && (offp == &htab->tlsld_got.offset
7918 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7919 || h->root.type != bfd_link_hash_undefweak))
7921 asection *rsec = htab->relgot;
7924 outrel.r_offset = (htab->got->output_section->vma
7925 + htab->got->output_offset
7927 outrel.r_addend = 0;
7928 if (tls_ty & (TLS_LD | TLS_GD))
7930 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
7931 if (tls_ty == (TLS_TLS | TLS_GD))
7933 loc = rsec->contents;
7934 loc += (rsec->reloc_count++
7935 * sizeof (Elf32_External_Rela));
7936 bfd_elf32_swap_reloca_out (output_bfd,
7938 outrel.r_offset += 4;
7940 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
7943 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
7944 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
7945 else if (tls_ty == (TLS_TLS | TLS_TPREL))
7946 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
7948 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
7949 else if (ifunc != NULL)
7950 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
7952 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
7953 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
7955 outrel.r_addend += relocation;
7956 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
7957 outrel.r_addend -= htab->elf.tls_sec->vma;
7959 loc = rsec->contents;
7960 loc += (rsec->reloc_count++
7961 * sizeof (Elf32_External_Rela));
7962 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7965 /* Init the .got section contents if we're not
7966 emitting a reloc. */
7969 bfd_vma value = relocation;
7971 if (tls_ty == (TLS_TLS | TLS_LD))
7973 else if (tls_ty != 0)
7975 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
7976 if (tls_ty == (TLS_TLS | TLS_TPREL))
7977 value += DTP_OFFSET - TP_OFFSET;
7979 if (tls_ty == (TLS_TLS | TLS_GD))
7981 bfd_put_32 (output_bfd, value,
7982 htab->got->contents + off + 4);
7986 bfd_put_32 (output_bfd, value,
7987 htab->got->contents + off);
7991 if (tls_ty & (TLS_LD | TLS_GD))
8000 if (off >= (bfd_vma) -2)
8003 if ((tls_type & TLS_TLS) != 0)
8005 if (tls_type != (TLS_TLS | TLS_LD))
8007 if ((tls_mask & TLS_LD) != 0
8009 || !h->def_dynamic))
8011 if (tls_type != (TLS_TLS | TLS_GD))
8013 if ((tls_mask & TLS_GD) != 0)
8015 if (tls_type != (TLS_TLS | TLS_DTPREL))
8017 if ((tls_mask & TLS_DTPREL) != 0)
8024 relocation = (htab->got->output_section->vma
8025 + htab->got->output_offset
8027 - SYM_VAL (htab->elf.hgot));
8029 /* Addends on got relocations don't make much sense.
8030 x+off@got is actually x@got+off, and since the got is
8031 generated by a hash table traversal, the value in the
8032 got at entry m+n bears little relation to the entry m. */
8034 info->callbacks->einfo
8035 (_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
8036 input_bfd, input_section, rel->r_offset,
8042 /* Relocations that need no special processing. */
8043 case R_PPC_LOCAL24PC:
8044 /* It makes no sense to point a local relocation
8045 at a symbol not in this object. */
8046 if (unresolved_reloc)
8048 if (! (*info->callbacks->undefined_symbol) (info,
8049 h->root.root.string,
8059 case R_PPC_DTPREL16:
8060 case R_PPC_DTPREL16_LO:
8061 case R_PPC_DTPREL16_HI:
8062 case R_PPC_DTPREL16_HA:
8063 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8066 /* Relocations that may need to be propagated if this is a shared
8069 case R_PPC_TPREL16_LO:
8070 case R_PPC_TPREL16_HI:
8071 case R_PPC_TPREL16_HA:
8073 && h->root.type == bfd_link_hash_undefweak
8074 && h->dynindx == -1)
8076 /* Make this relocation against an undefined weak symbol
8077 resolve to zero. This is really just a tweak, since
8078 code using weak externs ought to check that they are
8079 defined before using them. */
8080 bfd_byte *p = contents + rel->r_offset - d_offset;
8081 unsigned int insn = bfd_get_32 (output_bfd, p);
8082 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8084 bfd_put_32 (output_bfd, insn, p);
8087 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8088 /* The TPREL16 relocs shouldn't really be used in shared
8089 libs as they will result in DT_TEXTREL being set, but
8090 support them anyway. */
8094 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
8097 case R_PPC_DTPREL32:
8098 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
8101 case R_PPC_DTPMOD32:
8107 case R_PPC_REL16_LO:
8108 case R_PPC_REL16_HI:
8109 case R_PPC_REL16_HA:
8113 if (h == NULL || h == htab->elf.hgot)
8119 case R_PPC_ADDR16_LO:
8120 case R_PPC_ADDR16_HI:
8121 case R_PPC_ADDR16_HA:
8126 case R_PPC_VLE_REL8:
8127 case R_PPC_VLE_REL15:
8128 case R_PPC_VLE_REL24:
8131 case R_PPC_REL14_BRTAKEN:
8132 case R_PPC_REL14_BRNTAKEN:
8133 /* If these relocations are not to a named symbol, they can be
8134 handled right here, no need to bother the dynamic linker. */
8135 if (SYMBOL_CALLS_LOCAL (info, h)
8136 || h == htab->elf.hgot)
8142 case R_PPC_ADDR14_BRTAKEN:
8143 case R_PPC_ADDR14_BRNTAKEN:
8144 if (h != NULL && !info->shared)
8149 if ((input_section->flags & SEC_ALLOC) == 0
8155 && ((h->root.type == bfd_link_hash_undefined
8156 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
8157 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
8158 || (h->root.type == bfd_link_hash_undefweak
8159 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
8160 && (must_be_dyn_reloc (info, r_type)
8161 || !SYMBOL_CALLS_LOCAL (info, h)))
8162 || (ELIMINATE_COPY_RELOCS
8167 && !h->def_regular))
8172 fprintf (stderr, "ppc_elf_relocate_section needs to "
8173 "create relocation for %s\n",
8174 (h && h->root.root.string
8175 ? h->root.root.string : "<unknown>"));
8178 /* When generating a shared object, these relocations
8179 are copied into the output file to be resolved at run
8183 sreloc = elf_section_data (input_section)->sreloc;
8184 if (!htab->elf.dynamic_sections_created)
8185 sreloc = htab->reliplt;
8191 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8194 if (outrel.r_offset == (bfd_vma) -1
8195 || outrel.r_offset == (bfd_vma) -2)
8196 skip = (int) outrel.r_offset;
8197 outrel.r_offset += (input_section->output_section->vma
8198 + input_section->output_offset);
8201 memset (&outrel, 0, sizeof outrel);
8203 && (h->root.type == bfd_link_hash_undefined
8204 || h->root.type == bfd_link_hash_undefweak))
8205 || !SYMBOL_REFERENCES_LOCAL (info, h))
8207 BFD_ASSERT (h->dynindx != -1);
8208 unresolved_reloc = FALSE;
8209 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
8210 outrel.r_addend = rel->r_addend;
8214 outrel.r_addend = relocation + rel->r_addend;
8216 if (r_type != R_PPC_ADDR32)
8222 /* If we get here when building a static
8223 executable, then the libc startup function
8224 responsible for applying indirect function
8225 relocations is going to complain about
8227 If we get here when building a dynamic
8228 executable, it will be because we have
8229 a text relocation. The dynamic loader
8230 will set the text segment writable and
8231 non-executable to apply text relocations.
8232 So we'll segfault when trying to run the
8233 indirection function to resolve the reloc. */
8234 info->callbacks->einfo
8235 (_("%P: %H: relocation %s for indirect "
8236 "function %s unsupported\n"),
8237 input_bfd, input_section, rel->r_offset,
8242 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
8244 else if (sec == NULL || sec->owner == NULL)
8246 bfd_set_error (bfd_error_bad_value);
8253 /* We are turning this relocation into one
8254 against a section symbol. It would be
8255 proper to subtract the symbol's value,
8256 osec->vma, from the emitted reloc addend,
8257 but ld.so expects buggy relocs.
8258 FIXME: Why not always use a zero index? */
8259 osec = sec->output_section;
8260 indx = elf_section_data (osec)->dynindx;
8263 osec = htab->elf.text_index_section;
8264 indx = elf_section_data (osec)->dynindx;
8266 BFD_ASSERT (indx != 0);
8269 printf ("indx=%ld section=%s flags=%08x name=%s\n",
8270 indx, osec->name, osec->flags,
8271 h->root.root.string);
8275 outrel.r_info = ELF32_R_INFO (indx, r_type);
8277 else if (ifunc != NULL)
8278 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8280 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
8283 loc = sreloc->contents;
8284 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8285 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
8290 /* This reloc will be computed at runtime. We clear the memory
8291 so that it contains predictable value. */
8293 && ((input_section->flags & SEC_ALLOC) != 0
8294 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
8296 relocation = howto->pc_relative ? outrel.r_offset : 0;
8303 case R_PPC_RELAX_PLT:
8304 case R_PPC_RELAX_PLTREL24:
8307 struct plt_entry *ent;
8308 bfd_vma got2_addend = 0;
8310 if (r_type == R_PPC_RELAX_PLTREL24)
8313 got2_addend = addend;
8316 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
8317 if (htab->plt_type == PLT_NEW)
8318 relocation = (htab->glink->output_section->vma
8319 + htab->glink->output_offset
8320 + ent->glink_offset);
8322 relocation = (htab->plt->output_section->vma
8323 + htab->plt->output_offset
8330 relocation -= (input_section->output_section->vma
8331 + input_section->output_offset
8332 + rel->r_offset - 4);
8338 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
8339 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
8341 /* We're clearing the bits for R_PPC_ADDR16_HA
8342 and R_PPC_ADDR16_LO here. */
8346 /* t0 is HA, t1 is LO */
8347 relocation += addend;
8348 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
8349 t1 |= relocation & 0xffff;
8351 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
8352 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
8354 /* Rewrite the reloc and convert one of the trailing nop
8355 relocs to describe this relocation. */
8356 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
8357 /* The relocs are at the bottom 2 bytes */
8358 rel[0].r_offset += 2;
8359 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
8360 rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
8361 rel[1].r_offset += 4;
8362 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
8367 /* Indirect .sdata relocation. */
8368 case R_PPC_EMB_SDAI16:
8369 BFD_ASSERT (htab->sdata[0].section != NULL);
8370 if (!is_static_defined (htab->sdata[0].sym))
8372 unresolved_reloc = TRUE;
8376 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
8377 h, relocation, rel);
8381 /* Indirect .sdata2 relocation. */
8382 case R_PPC_EMB_SDA2I16:
8383 BFD_ASSERT (htab->sdata[1].section != NULL);
8384 if (!is_static_defined (htab->sdata[1].sym))
8386 unresolved_reloc = TRUE;
8390 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
8391 h, relocation, rel);
8395 /* Handle the TOC16 reloc. We want to use the offset within the .got
8396 section, not the actual VMA. This is appropriate when generating
8397 an embedded ELF object, for which the .got section acts like the
8398 AIX .toc section. */
8399 case R_PPC_TOC16: /* phony GOT16 relocations */
8400 if (sec == NULL || sec->output_section == NULL)
8402 unresolved_reloc = TRUE;
8405 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
8407 || strcmp (bfd_get_section_name (sec->owner, sec),
8410 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
8413 case R_PPC_PLTREL24:
8414 if (h == NULL || ifunc != NULL)
8416 /* Relocation is to the entry for this symbol in the
8417 procedure linkage table. */
8419 struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2,
8420 info->shared ? addend : 0);
8423 || htab->plt == NULL)
8425 /* We didn't make a PLT entry for this symbol. This
8426 happens when statically linking PIC code, or when
8427 using -Bsymbolic. */
8431 unresolved_reloc = FALSE;
8432 if (htab->plt_type == PLT_NEW)
8433 relocation = (htab->glink->output_section->vma
8434 + htab->glink->output_offset
8435 + ent->glink_offset);
8437 relocation = (htab->plt->output_section->vma
8438 + htab->plt->output_offset
8443 /* Relocate against _SDA_BASE_. */
8444 case R_PPC_SDAREL16:
8447 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
8450 || sec->output_section == NULL
8451 || !is_static_defined (sda))
8453 unresolved_reloc = TRUE;
8456 addend -= SYM_VAL (sda);
8458 name = bfd_get_section_name (output_bfd, sec->output_section);
8459 if (! ((CONST_STRNEQ (name, ".sdata")
8460 && (name[6] == 0 || name[6] == '.'))
8461 || (CONST_STRNEQ (name, ".sbss")
8462 && (name[5] == 0 || name[5] == '.'))))
8464 info->callbacks->einfo
8465 (_("%P: %B: the target (%s) of a %s relocation is "
8466 "in the wrong output section (%s)\n"),
8475 /* Relocate against _SDA2_BASE_. */
8476 case R_PPC_EMB_SDA2REL:
8479 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
8482 || sec->output_section == NULL
8483 || !is_static_defined (sda))
8485 unresolved_reloc = TRUE;
8488 addend -= SYM_VAL (sda);
8490 name = bfd_get_section_name (output_bfd, sec->output_section);
8491 if (! (CONST_STRNEQ (name, ".sdata2")
8492 || CONST_STRNEQ (name, ".sbss2")))
8494 info->callbacks->einfo
8495 (_("%P: %B: the target (%s) of a %s relocation is "
8496 "in the wrong output section (%s)\n"),
8505 case R_PPC_VLE_LO16A:
8506 relocation = (relocation + addend) & 0xffff;
8507 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8508 relocation, split16a_type);
8511 case R_PPC_VLE_LO16D:
8512 relocation = (relocation + addend) & 0xffff;
8513 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8514 relocation, split16d_type);
8517 case R_PPC_VLE_HI16A:
8518 relocation = ((relocation + addend) >> 16) & 0xffff;
8519 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8520 relocation, split16a_type);
8523 case R_PPC_VLE_HI16D:
8524 relocation = ((relocation + addend) >> 16) & 0xffff;
8525 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8526 relocation, split16d_type);
8529 case R_PPC_VLE_HA16A:
8531 bfd_vma value = relocation + addend;
8532 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8533 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8534 value, split16a_type);
8538 case R_PPC_VLE_HA16D:
8540 bfd_vma value = relocation + addend;
8541 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8542 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8543 value, split16d_type);
8547 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
8548 case R_PPC_EMB_SDA21:
8549 case R_PPC_VLE_SDA21:
8550 case R_PPC_EMB_RELSDA:
8551 case R_PPC_VLE_SDA21_LO:
8555 struct elf_link_hash_entry *sda = NULL;
8557 if (sec == NULL || sec->output_section == NULL)
8559 unresolved_reloc = TRUE;
8563 name = bfd_get_section_name (output_bfd, sec->output_section);
8564 if (((CONST_STRNEQ (name, ".sdata")
8565 && (name[6] == 0 || name[6] == '.'))
8566 || (CONST_STRNEQ (name, ".sbss")
8567 && (name[5] == 0 || name[5] == '.'))))
8570 sda = htab->sdata[0].sym;
8572 else if (CONST_STRNEQ (name, ".sdata2")
8573 || CONST_STRNEQ (name, ".sbss2"))
8576 sda = htab->sdata[1].sym;
8578 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
8579 || strcmp (name, ".PPC.EMB.sbss0") == 0)
8585 info->callbacks->einfo
8586 (_("%P: %B: the target (%s) of a %s relocation is "
8587 "in the wrong output section (%s)\n"),
8593 bfd_set_error (bfd_error_bad_value);
8600 if (!is_static_defined (sda))
8602 unresolved_reloc = TRUE;
8605 addend -= SYM_VAL (sda);
8609 && (r_type == R_PPC_VLE_SDA21
8610 || r_type == R_PPC_VLE_SDA21_LO))
8612 /* Use the split20 format. */
8613 bfd_vma insn, bits12to15, bits21to31;
8614 bfd_vma value = (relocation + rel->r_offset) & 0xffff;
8615 /* Propagate sign bit, if necessary. */
8616 insn = (value & 0x8000) ? 0x70107800 : 0x70000000;
8617 bits12to15 = value & 0x700;
8618 bits21to31 = value & 0x7ff;
8621 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8624 else if (r_type == R_PPC_EMB_SDA21
8625 || r_type == R_PPC_VLE_SDA21
8626 || r_type == R_PPC_VLE_SDA21_LO)
8628 bfd_vma insn; /* Fill in register field. */
8630 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
8631 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
8632 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8637 case R_PPC_VLE_SDAREL_LO16A:
8638 case R_PPC_VLE_SDAREL_LO16D:
8639 case R_PPC_VLE_SDAREL_HI16A:
8640 case R_PPC_VLE_SDAREL_HI16D:
8641 case R_PPC_VLE_SDAREL_HA16A:
8642 case R_PPC_VLE_SDAREL_HA16D:
8647 struct elf_link_hash_entry *sda = NULL;
8649 if (sec == NULL || sec->output_section == NULL)
8651 unresolved_reloc = TRUE;
8655 name = bfd_get_section_name (output_bfd, sec->output_section);
8656 if (((CONST_STRNEQ (name, ".sdata")
8657 && (name[6] == 0 || name[6] == '.'))
8658 || (CONST_STRNEQ (name, ".sbss")
8659 && (name[5] == 0 || name[5] == '.'))))
8662 sda = htab->sdata[0].sym;
8664 else if (CONST_STRNEQ (name, ".sdata2")
8665 || CONST_STRNEQ (name, ".sbss2"))
8668 sda = htab->sdata[1].sym;
8672 (*_bfd_error_handler)
8673 (_("%B: the target (%s) of a %s relocation is "
8674 "in the wrong output section (%s)"),
8680 bfd_set_error (bfd_error_bad_value);
8687 if (!is_static_defined (sda))
8689 unresolved_reloc = TRUE;
8694 value = sda->root.u.def.section->output_section->vma
8695 + sda->root.u.def.section->output_offset;
8697 if (r_type == R_PPC_VLE_SDAREL_LO16A)
8699 value = (value + addend) & 0xffff;
8700 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8701 value, split16a_type);
8703 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
8705 value = (value + addend) & 0xffff;
8706 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8707 value, split16d_type);
8709 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
8711 value = ((value + addend) >> 16) & 0xffff;
8712 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8713 value, split16a_type);
8715 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
8717 value = ((value + addend) >> 16) & 0xffff;
8718 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8719 value, split16d_type);
8721 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
8724 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8725 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8726 value, split16a_type);
8728 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
8731 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8732 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8733 value, split16d_type);
8738 /* Relocate against the beginning of the section. */
8740 case R_PPC_SECTOFF_LO:
8741 case R_PPC_SECTOFF_HI:
8742 case R_PPC_SECTOFF_HA:
8743 if (sec == NULL || sec->output_section == NULL)
8745 unresolved_reloc = TRUE;
8748 addend -= sec->output_section->vma;
8751 /* Negative relocations. */
8752 case R_PPC_EMB_NADDR32:
8753 case R_PPC_EMB_NADDR16:
8754 case R_PPC_EMB_NADDR16_LO:
8755 case R_PPC_EMB_NADDR16_HI:
8756 case R_PPC_EMB_NADDR16_HA:
8757 addend -= 2 * relocation;
8761 case R_PPC_GLOB_DAT:
8762 case R_PPC_JMP_SLOT:
8763 case R_PPC_RELATIVE:
8764 case R_PPC_IRELATIVE:
8766 case R_PPC_PLTREL32:
8767 case R_PPC_PLT16_LO:
8768 case R_PPC_PLT16_HI:
8769 case R_PPC_PLT16_HA:
8771 case R_PPC_EMB_RELSEC16:
8772 case R_PPC_EMB_RELST_LO:
8773 case R_PPC_EMB_RELST_HI:
8774 case R_PPC_EMB_RELST_HA:
8775 case R_PPC_EMB_BIT_FLD:
8776 info->callbacks->einfo
8777 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
8782 bfd_set_error (bfd_error_invalid_operation);
8787 /* Do any further special processing. */
8793 case R_PPC_ADDR16_HA:
8794 case R_PPC_REL16_HA:
8795 case R_PPC_SECTOFF_HA:
8796 case R_PPC_TPREL16_HA:
8797 case R_PPC_DTPREL16_HA:
8798 case R_PPC_EMB_NADDR16_HA:
8799 case R_PPC_EMB_RELST_HA:
8800 /* It's just possible that this symbol is a weak symbol
8801 that's not actually defined anywhere. In that case,
8802 'sec' would be NULL, and we should leave the symbol
8803 alone (it will be set to zero elsewhere in the link). */
8808 case R_PPC_PLT16_HA:
8809 case R_PPC_GOT16_HA:
8810 case R_PPC_GOT_TLSGD16_HA:
8811 case R_PPC_GOT_TLSLD16_HA:
8812 case R_PPC_GOT_TPREL16_HA:
8813 case R_PPC_GOT_DTPREL16_HA:
8814 /* Add 0x10000 if sign bit in 0:15 is set.
8815 Bits 0:15 are not used. */
8820 case R_PPC_ADDR16_LO:
8822 case R_PPC_GOT16_LO:
8823 case R_PPC_SDAREL16:
8825 case R_PPC_SECTOFF_LO:
8826 case R_PPC_DTPREL16:
8827 case R_PPC_DTPREL16_LO:
8829 case R_PPC_TPREL16_LO:
8830 case R_PPC_GOT_TLSGD16:
8831 case R_PPC_GOT_TLSGD16_LO:
8832 case R_PPC_GOT_TLSLD16:
8833 case R_PPC_GOT_TLSLD16_LO:
8834 case R_PPC_GOT_DTPREL16:
8835 case R_PPC_GOT_DTPREL16_LO:
8836 case R_PPC_GOT_TPREL16:
8837 case R_PPC_GOT_TPREL16_LO:
8839 /* The 32-bit ABI lacks proper relocations to deal with
8840 certain 64-bit instructions. Prevent damage to bits
8841 that make up part of the insn opcode. */
8842 unsigned int insn, mask, lobit;
8844 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
8846 if (is_insn_ds_form (insn))
8848 else if (is_insn_dq_form (insn))
8852 lobit = mask & (relocation + addend);
8856 info->callbacks->einfo
8857 (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
8858 input_bfd, input_section, rel->r_offset,
8859 howto->name, sym_name, mask + 1);
8860 bfd_set_error (bfd_error_bad_value);
8863 addend += insn & mask;
8869 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
8870 "offset = %ld, addend = %ld\n",
8875 (long) rel->r_offset,
8879 if (unresolved_reloc
8880 && !((input_section->flags & SEC_DEBUGGING) != 0
8882 && _bfd_elf_section_offset (output_bfd, info, input_section,
8883 rel->r_offset) != (bfd_vma) -1)
8885 info->callbacks->einfo
8886 (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
8887 input_bfd, input_section, rel->r_offset,
8893 r = _bfd_final_link_relocate (howto,
8901 if (r != bfd_reloc_ok)
8903 if (r == bfd_reloc_overflow)
8908 && h->root.type == bfd_link_hash_undefweak
8909 && howto->pc_relative)
8911 /* Assume this is a call protected by other code that
8912 detect the symbol is undefined. If this is the case,
8913 we can safely ignore the overflow. If not, the
8914 program is hosed anyway, and a little warning isn't
8920 if (! (*info->callbacks->reloc_overflow) (info,
8921 (h ? &h->root : NULL),
8932 info->callbacks->einfo
8933 (_("%P: %H: %s reloc against `%s': error %d\n"),
8934 input_bfd, input_section, rel->r_offset,
8935 howto->name, sym_name, (int) r);
8942 fprintf (stderr, "\n");
8948 /* Finish up dynamic symbol handling. We set the contents of various
8949 dynamic sections here. */
8952 ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
8953 struct bfd_link_info *info,
8954 struct elf_link_hash_entry *h,
8955 Elf_Internal_Sym *sym)
8957 struct ppc_elf_link_hash_table *htab;
8958 struct plt_entry *ent;
8959 bfd_boolean doneone;
8962 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
8963 h->root.root.string);
8966 htab = ppc_elf_hash_table (info);
8967 BFD_ASSERT (htab->elf.dynobj != NULL);
8970 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8971 if (ent->plt.offset != (bfd_vma) -1)
8975 Elf_Internal_Rela rela;
8977 bfd_vma reloc_index;
8979 if (htab->plt_type == PLT_NEW
8980 || !htab->elf.dynamic_sections_created
8981 || h->dynindx == -1)
8982 reloc_index = ent->plt.offset / 4;
8985 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
8986 / htab->plt_slot_size);
8987 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
8988 && htab->plt_type == PLT_OLD)
8989 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
8992 /* This symbol has an entry in the procedure linkage table.
8994 if (htab->plt_type == PLT_VXWORKS
8995 && htab->elf.dynamic_sections_created
8996 && h->dynindx != -1)
8999 const bfd_vma *plt_entry;
9001 /* The first three entries in .got.plt are reserved. */
9002 got_offset = (reloc_index + 3) * 4;
9004 /* Use the right PLT. */
9005 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
9006 : ppc_elf_vxworks_plt_entry;
9008 /* Fill in the .plt on VxWorks. */
9011 bfd_put_32 (output_bfd,
9012 plt_entry[0] | PPC_HA (got_offset),
9013 htab->plt->contents + ent->plt.offset + 0);
9014 bfd_put_32 (output_bfd,
9015 plt_entry[1] | PPC_LO (got_offset),
9016 htab->plt->contents + ent->plt.offset + 4);
9020 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9022 bfd_put_32 (output_bfd,
9023 plt_entry[0] | PPC_HA (got_loc),
9024 htab->plt->contents + ent->plt.offset + 0);
9025 bfd_put_32 (output_bfd,
9026 plt_entry[1] | PPC_LO (got_loc),
9027 htab->plt->contents + ent->plt.offset + 4);
9030 bfd_put_32 (output_bfd, plt_entry[2],
9031 htab->plt->contents + ent->plt.offset + 8);
9032 bfd_put_32 (output_bfd, plt_entry[3],
9033 htab->plt->contents + ent->plt.offset + 12);
9035 /* This instruction is an immediate load. The value loaded is
9036 the byte offset of the R_PPC_JMP_SLOT relocation from the
9037 start of the .rela.plt section. The value is stored in the
9038 low-order 16 bits of the load instruction. */
9039 /* NOTE: It appears that this is now an index rather than a
9040 prescaled offset. */
9041 bfd_put_32 (output_bfd,
9042 plt_entry[4] | reloc_index,
9043 htab->plt->contents + ent->plt.offset + 16);
9044 /* This instruction is a PC-relative branch whose target is
9045 the start of the PLT section. The address of this branch
9046 instruction is 20 bytes beyond the start of this PLT entry.
9047 The address is encoded in bits 6-29, inclusive. The value
9048 stored is right-shifted by two bits, permitting a 26-bit
9050 bfd_put_32 (output_bfd,
9052 | (-(ent->plt.offset + 20) & 0x03fffffc)),
9053 htab->plt->contents + ent->plt.offset + 20);
9054 bfd_put_32 (output_bfd, plt_entry[6],
9055 htab->plt->contents + ent->plt.offset + 24);
9056 bfd_put_32 (output_bfd, plt_entry[7],
9057 htab->plt->contents + ent->plt.offset + 28);
9059 /* Fill in the GOT entry corresponding to this PLT slot with
9060 the address immediately after the "bctr" instruction
9061 in this PLT entry. */
9062 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
9063 + htab->plt->output_offset
9064 + ent->plt.offset + 16),
9065 htab->sgotplt->contents + got_offset);
9069 /* Fill in a couple of entries in .rela.plt.unloaded. */
9070 loc = htab->srelplt2->contents
9071 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
9072 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
9073 * sizeof (Elf32_External_Rela));
9075 /* Provide the @ha relocation for the first instruction. */
9076 rela.r_offset = (htab->plt->output_section->vma
9077 + htab->plt->output_offset
9078 + ent->plt.offset + 2);
9079 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9081 rela.r_addend = got_offset;
9082 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9083 loc += sizeof (Elf32_External_Rela);
9085 /* Provide the @l relocation for the second instruction. */
9086 rela.r_offset = (htab->plt->output_section->vma
9087 + htab->plt->output_offset
9088 + ent->plt.offset + 6);
9089 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9091 rela.r_addend = got_offset;
9092 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9093 loc += sizeof (Elf32_External_Rela);
9095 /* Provide a relocation for the GOT entry corresponding to this
9096 PLT slot. Point it at the middle of the .plt entry. */
9097 rela.r_offset = (htab->sgotplt->output_section->vma
9098 + htab->sgotplt->output_offset
9100 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9102 rela.r_addend = ent->plt.offset + 16;
9103 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9106 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
9107 In particular, the offset for the relocation is not the
9108 address of the PLT entry for this function, as specified
9109 by the ABI. Instead, the offset is set to the address of
9110 the GOT slot for this function. See EABI 4.4.4.1. */
9111 rela.r_offset = (htab->sgotplt->output_section->vma
9112 + htab->sgotplt->output_offset
9118 asection *splt = htab->plt;
9119 if (!htab->elf.dynamic_sections_created
9120 || h->dynindx == -1)
9123 rela.r_offset = (splt->output_section->vma
9124 + splt->output_offset
9126 if (htab->plt_type == PLT_OLD
9127 || !htab->elf.dynamic_sections_created
9128 || h->dynindx == -1)
9130 /* We don't need to fill in the .plt. The ppc dynamic
9131 linker will fill it in. */
9135 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
9136 + htab->glink->output_section->vma
9137 + htab->glink->output_offset);
9138 bfd_put_32 (output_bfd, val,
9139 splt->contents + ent->plt.offset);
9143 /* Fill in the entry in the .rela.plt section. */
9145 if (!htab->elf.dynamic_sections_created
9146 || h->dynindx == -1)
9148 BFD_ASSERT (h->type == STT_GNU_IFUNC
9150 && (h->root.type == bfd_link_hash_defined
9151 || h->root.type == bfd_link_hash_defweak));
9152 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
9153 rela.r_addend = SYM_VAL (h);
9156 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
9158 if (!htab->elf.dynamic_sections_created
9159 || h->dynindx == -1)
9160 loc = (htab->reliplt->contents
9161 + (htab->reliplt->reloc_count++
9162 * sizeof (Elf32_External_Rela)));
9164 loc = (htab->relplt->contents
9165 + reloc_index * sizeof (Elf32_External_Rela));
9166 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9168 if (!h->def_regular)
9170 /* Mark the symbol as undefined, rather than as
9171 defined in the .plt section. Leave the value if
9172 there were any relocations where pointer equality
9173 matters (this is a clue for the dynamic linker, to
9174 make function pointer comparisons work between an
9175 application and shared library), otherwise set it
9177 sym->st_shndx = SHN_UNDEF;
9178 if (!h->pointer_equality_needed)
9180 else if (!h->ref_regular_nonweak)
9182 /* This breaks function pointer comparisons, but
9183 that is better than breaking tests for a NULL
9184 function pointer. */
9188 else if (h->type == STT_GNU_IFUNC
9191 /* Set the value of ifunc symbols in a non-pie
9192 executable to the glink entry. This is to avoid
9193 text relocations. We can't do this for ifunc in
9194 allocate_dynrelocs, as we do for normal dynamic
9195 function symbols with plt entries, because we need
9196 to keep the original value around for the ifunc
9198 sym->st_shndx = (_bfd_elf_section_from_bfd_section
9199 (output_bfd, htab->glink->output_section));
9200 sym->st_value = (ent->glink_offset
9201 + htab->glink->output_offset
9202 + htab->glink->output_section->vma);
9207 if (htab->plt_type == PLT_NEW
9208 || !htab->elf.dynamic_sections_created
9209 || h->dynindx == -1)
9212 asection *splt = htab->plt;
9213 if (!htab->elf.dynamic_sections_created
9214 || h->dynindx == -1)
9217 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
9219 if (h == htab->tls_get_addr && !htab->no_tls_get_addr_opt)
9221 bfd_put_32 (output_bfd, LWZ_11_3, p);
9223 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
9225 bfd_put_32 (output_bfd, MR_0_3, p);
9227 bfd_put_32 (output_bfd, CMPWI_11_0, p);
9229 bfd_put_32 (output_bfd, ADD_3_12_2, p);
9231 bfd_put_32 (output_bfd, BEQLR, p);
9233 bfd_put_32 (output_bfd, MR_3_0, p);
9235 bfd_put_32 (output_bfd, NOP, p);
9239 write_glink_stub (ent, splt, p, info);
9242 /* We only need one non-PIC glink stub. */
9252 Elf_Internal_Rela rela;
9255 /* This symbols needs a copy reloc. Set it up. */
9258 fprintf (stderr, ", copy");
9261 BFD_ASSERT (h->dynindx != -1);
9263 if (ppc_elf_hash_entry (h)->has_sda_refs)
9267 BFD_ASSERT (s != NULL);
9269 rela.r_offset = SYM_VAL (h);
9270 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
9272 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
9273 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9277 fprintf (stderr, "\n");
9283 static enum elf_reloc_type_class
9284 ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
9286 switch (ELF32_R_TYPE (rela->r_info))
9288 case R_PPC_RELATIVE:
9289 return reloc_class_relative;
9292 case R_PPC_JMP_SLOT:
9293 return reloc_class_plt;
9295 return reloc_class_copy;
9297 return reloc_class_normal;
9301 /* Finish up the dynamic sections. */
9304 ppc_elf_finish_dynamic_sections (bfd *output_bfd,
9305 struct bfd_link_info *info)
9309 struct ppc_elf_link_hash_table *htab;
9312 bfd_boolean ret = TRUE;
9315 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
9318 htab = ppc_elf_hash_table (info);
9319 dynobj = elf_hash_table (info)->dynobj;
9320 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
9321 if (htab->is_vxworks)
9322 splt = bfd_get_linker_section (dynobj, ".plt");
9327 if (htab->elf.hgot != NULL)
9328 got = SYM_VAL (htab->elf.hgot);
9330 if (htab->elf.dynamic_sections_created)
9332 Elf32_External_Dyn *dyncon, *dynconend;
9334 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
9336 dyncon = (Elf32_External_Dyn *) sdyn->contents;
9337 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
9338 for (; dyncon < dynconend; dyncon++)
9340 Elf_Internal_Dyn dyn;
9343 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
9348 if (htab->is_vxworks)
9352 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9356 dyn.d_un.d_val = htab->relplt->size;
9361 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9365 dyn.d_un.d_ptr = got;
9369 if (htab->is_vxworks)
9372 dyn.d_un.d_ptr -= htab->relplt->size;
9378 if (htab->is_vxworks
9379 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
9384 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
9388 if (htab->got != NULL)
9390 if (htab->elf.hgot->root.u.def.section == htab->got
9391 || htab->elf.hgot->root.u.def.section == htab->sgotplt)
9393 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
9395 p += htab->elf.hgot->root.u.def.value;
9396 if (htab->plt_type == PLT_OLD)
9398 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
9399 so that a function can easily find the address of
9400 _GLOBAL_OFFSET_TABLE_. */
9401 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
9402 < htab->elf.hgot->root.u.def.section->size);
9403 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
9408 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
9409 BFD_ASSERT (htab->elf.hgot->root.u.def.value
9410 < htab->elf.hgot->root.u.def.section->size);
9411 bfd_put_32 (output_bfd, val, p);
9416 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
9417 htab->elf.hgot->root.root.string,
9418 (htab->sgotplt != NULL
9419 ? htab->sgotplt->name : htab->got->name));
9420 bfd_set_error (bfd_error_bad_value);
9424 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
9427 /* Fill in the first entry in the VxWorks procedure linkage table. */
9428 if (splt && splt->size > 0)
9430 /* Use the right PLT. */
9431 const bfd_vma *plt_entry = (info->shared
9432 ? ppc_elf_vxworks_pic_plt0_entry
9433 : ppc_elf_vxworks_plt0_entry);
9437 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9439 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9440 splt->contents + 0);
9441 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9442 splt->contents + 4);
9446 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
9447 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
9449 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
9450 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
9451 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
9452 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
9453 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
9454 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
9458 Elf_Internal_Rela rela;
9461 loc = htab->srelplt2->contents;
9463 /* Output the @ha relocation for the first instruction. */
9464 rela.r_offset = (htab->plt->output_section->vma
9465 + htab->plt->output_offset
9467 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9469 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9470 loc += sizeof (Elf32_External_Rela);
9472 /* Output the @l relocation for the second instruction. */
9473 rela.r_offset = (htab->plt->output_section->vma
9474 + htab->plt->output_offset
9476 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9478 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9479 loc += sizeof (Elf32_External_Rela);
9481 /* Fix up the remaining relocations. They may have the wrong
9482 symbol index for _G_O_T_ or _P_L_T_ depending on the order
9483 in which symbols were output. */
9484 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
9486 Elf_Internal_Rela rel;
9488 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9489 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9490 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9491 loc += sizeof (Elf32_External_Rela);
9493 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9494 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9495 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9496 loc += sizeof (Elf32_External_Rela);
9498 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
9499 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9500 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9501 loc += sizeof (Elf32_External_Rela);
9506 if (htab->glink != NULL
9507 && htab->glink->contents != NULL
9508 && htab->elf.dynamic_sections_created)
9511 unsigned char *endp;
9516 * PIC glink code is the following:
9518 * # ith PLT code stub.
9519 * addis 11,30,(plt+(i-1)*4-got)@ha
9520 * lwz 11,(plt+(i-1)*4-got)@l(11)
9524 * # A table of branches, one for each plt entry.
9525 * # The idea is that the plt call stub loads ctr and r11 with these
9526 * # addresses, so (r11 - res_0) gives the plt index * 4.
9527 * res_0: b PLTresolve
9528 * res_1: b PLTresolve
9530 * # Some number of entries towards the end can be nops
9536 * addis 11,11,(1f-res_0)@ha
9539 * 1: addi 11,11,(1b-res_0)@l
9542 * sub 11,11,12 # r11 = index * 4
9543 * addis 12,12,(got+4-1b)@ha
9544 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
9545 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
9548 * add 11,0,11 # r11 = index * 12 = reloc offset.
9551 static const unsigned int pic_plt_resolve[] =
9572 * Non-PIC glink code is a little simpler.
9574 * # ith PLT code stub.
9575 * lis 11,(plt+(i-1)*4)@ha
9576 * lwz 11,(plt+(i-1)*4)@l(11)
9580 * The branch table is the same, then comes
9584 * addis 11,11,(-res_0)@ha
9585 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
9586 * addi 11,11,(-res_0)@l # r11 = index * 4
9589 * lwz 12,(got+8)@l(12) # got[2] contains the map address
9590 * add 11,0,11 # r11 = index * 12 = reloc offset.
9593 static const unsigned int plt_resolve[] =
9613 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
9615 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
9618 /* Build the branch table, one for each plt entry (less one),
9619 and perhaps some padding. */
9620 p = htab->glink->contents;
9621 p += htab->glink_pltresolve;
9622 endp = htab->glink->contents;
9623 endp += htab->glink->size - GLINK_PLTRESOLVE;
9624 while (p < endp - 8 * 4)
9626 bfd_put_32 (output_bfd, B + endp - p, p);
9631 bfd_put_32 (output_bfd, NOP, p);
9635 res0 = (htab->glink_pltresolve
9636 + htab->glink->output_section->vma
9637 + htab->glink->output_offset);
9639 /* Last comes the PLTresolve stub. */
9644 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
9646 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
9649 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
9651 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
9652 + htab->glink->output_section->vma
9653 + htab->glink->output_offset);
9655 bfd_put_32 (output_bfd,
9656 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
9657 bfd_put_32 (output_bfd,
9658 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
9659 bfd_put_32 (output_bfd,
9660 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
9661 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
9663 bfd_put_32 (output_bfd,
9664 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
9665 bfd_put_32 (output_bfd,
9666 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
9670 bfd_put_32 (output_bfd,
9671 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
9672 bfd_put_32 (output_bfd,
9673 LWZ_12_12 + 4, p + 9*4);
9678 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
9680 bfd_put_32 (output_bfd, plt_resolve[i], p);
9683 p -= 4 * ARRAY_SIZE (plt_resolve);
9685 bfd_put_32 (output_bfd,
9686 LIS_12 + PPC_HA (got + 4), p + 0*4);
9687 bfd_put_32 (output_bfd,
9688 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
9689 bfd_put_32 (output_bfd,
9690 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
9691 if (PPC_HA (got + 4) == PPC_HA (got + 8))
9693 bfd_put_32 (output_bfd,
9694 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
9695 bfd_put_32 (output_bfd,
9696 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
9700 bfd_put_32 (output_bfd,
9701 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
9702 bfd_put_32 (output_bfd,
9703 LWZ_12_12 + 4, p + 6*4);
9708 if (htab->glink_eh_frame != NULL
9709 && htab->glink_eh_frame->contents != NULL)
9711 unsigned char *p = htab->glink_eh_frame->contents;
9714 p += sizeof (glink_eh_frame_cie);
9719 /* Offset to .glink. */
9720 val = (htab->glink->output_section->vma
9721 + htab->glink->output_offset);
9722 val -= (htab->glink_eh_frame->output_section->vma
9723 + htab->glink_eh_frame->output_offset);
9724 val -= p - htab->glink_eh_frame->contents;
9725 bfd_put_32 (htab->elf.dynobj, val, p);
9727 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
9728 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
9729 htab->glink_eh_frame,
9730 htab->glink_eh_frame->contents))
9737 #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
9738 #define TARGET_LITTLE_NAME "elf32-powerpcle"
9739 #define TARGET_BIG_SYM bfd_elf32_powerpc_vec
9740 #define TARGET_BIG_NAME "elf32-powerpc"
9741 #define ELF_ARCH bfd_arch_powerpc
9742 #define ELF_TARGET_ID PPC32_ELF_DATA
9743 #define ELF_MACHINE_CODE EM_PPC
9744 #ifdef __QNXTARGET__
9745 #define ELF_MAXPAGESIZE 0x1000
9747 #define ELF_MAXPAGESIZE 0x10000
9749 #define ELF_MINPAGESIZE 0x1000
9750 #define ELF_COMMONPAGESIZE 0x1000
9751 #define elf_info_to_howto ppc_elf_info_to_howto
9753 #ifdef EM_CYGNUS_POWERPC
9754 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
9758 #define ELF_MACHINE_ALT2 EM_PPC_OLD
9761 #define elf_backend_plt_not_loaded 1
9762 #define elf_backend_can_gc_sections 1
9763 #define elf_backend_can_refcount 1
9764 #define elf_backend_rela_normal 1
9766 #define bfd_elf32_mkobject ppc_elf_mkobject
9767 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
9768 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
9769 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
9770 #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
9771 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
9772 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
9773 #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
9775 #define elf_backend_object_p ppc_elf_object_p
9776 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
9777 #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
9778 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
9779 #define elf_backend_relocate_section ppc_elf_relocate_section
9780 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
9781 #define elf_backend_check_relocs ppc_elf_check_relocs
9782 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
9783 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
9784 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
9785 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
9786 #define elf_backend_hash_symbol ppc_elf_hash_symbol
9787 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
9788 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
9789 #define elf_backend_fake_sections ppc_elf_fake_sections
9790 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
9791 #define elf_backend_modify_segment_map ppc_elf_modify_segment_map
9792 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
9793 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
9794 #define elf_backend_write_core_note ppc_elf_write_core_note
9795 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
9796 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
9797 #define elf_backend_final_write_processing ppc_elf_final_write_processing
9798 #define elf_backend_write_section ppc_elf_write_section
9799 #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
9800 #define elf_backend_plt_sym_val ppc_elf_plt_sym_val
9801 #define elf_backend_action_discarded ppc_elf_action_discarded
9802 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
9803 #define elf_backend_post_process_headers _bfd_elf_set_osabi
9804 #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
9805 #define elf_backend_section_processing ppc_elf_section_processing
9807 #include "elf32-target.h"
9809 /* FreeBSD Target */
9811 #undef TARGET_LITTLE_SYM
9812 #undef TARGET_LITTLE_NAME
9814 #undef TARGET_BIG_SYM
9815 #define TARGET_BIG_SYM bfd_elf32_powerpc_freebsd_vec
9816 #undef TARGET_BIG_NAME
9817 #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
9820 #define ELF_OSABI ELFOSABI_FREEBSD
9823 #define elf32_bed elf32_powerpc_fbsd_bed
9825 #include "elf32-target.h"
9827 /* VxWorks Target */
9829 #undef TARGET_LITTLE_SYM
9830 #undef TARGET_LITTLE_NAME
9832 #undef TARGET_BIG_SYM
9833 #define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
9834 #undef TARGET_BIG_NAME
9835 #define TARGET_BIG_NAME "elf32-powerpc-vxworks"
9839 /* VxWorks uses the elf default section flags for .plt. */
9840 static const struct bfd_elf_special_section *
9841 ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9843 if (sec->name == NULL)
9846 if (strcmp (sec->name, ".plt") == 0)
9847 return _bfd_elf_get_sec_type_attr (abfd, sec);
9849 return ppc_elf_get_sec_type_attr (abfd, sec);
9852 /* Like ppc_elf_link_hash_table_create, but overrides
9853 appropriately for VxWorks. */
9854 static struct bfd_link_hash_table *
9855 ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
9857 struct bfd_link_hash_table *ret;
9859 ret = ppc_elf_link_hash_table_create (abfd);
9862 struct ppc_elf_link_hash_table *htab
9863 = (struct ppc_elf_link_hash_table *)ret;
9864 htab->is_vxworks = 1;
9865 htab->plt_type = PLT_VXWORKS;
9866 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
9867 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
9868 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
9873 /* Tweak magic VxWorks symbols as they are loaded. */
9875 ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
9876 struct bfd_link_info *info,
9877 Elf_Internal_Sym *sym,
9878 const char **namep ATTRIBUTE_UNUSED,
9879 flagword *flagsp ATTRIBUTE_UNUSED,
9883 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
9887 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
9891 ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
9893 ppc_elf_final_write_processing(abfd, linker);
9894 elf_vxworks_final_write_processing(abfd, linker);
9897 /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
9899 #undef elf_backend_want_plt_sym
9900 #define elf_backend_want_plt_sym 1
9901 #undef elf_backend_want_got_plt
9902 #define elf_backend_want_got_plt 1
9903 #undef elf_backend_got_symbol_offset
9904 #define elf_backend_got_symbol_offset 0
9905 #undef elf_backend_plt_not_loaded
9906 #define elf_backend_plt_not_loaded 0
9907 #undef elf_backend_plt_readonly
9908 #define elf_backend_plt_readonly 1
9909 #undef elf_backend_got_header_size
9910 #define elf_backend_got_header_size 12
9912 #undef bfd_elf32_get_synthetic_symtab
9914 #undef bfd_elf32_bfd_link_hash_table_create
9915 #define bfd_elf32_bfd_link_hash_table_create \
9916 ppc_elf_vxworks_link_hash_table_create
9917 #undef elf_backend_add_symbol_hook
9918 #define elf_backend_add_symbol_hook \
9919 ppc_elf_vxworks_add_symbol_hook
9920 #undef elf_backend_link_output_symbol_hook
9921 #define elf_backend_link_output_symbol_hook \
9922 elf_vxworks_link_output_symbol_hook
9923 #undef elf_backend_final_write_processing
9924 #define elf_backend_final_write_processing \
9925 ppc_elf_vxworks_final_write_processing
9926 #undef elf_backend_get_sec_type_attr
9927 #define elf_backend_get_sec_type_attr \
9928 ppc_elf_vxworks_get_sec_type_attr
9929 #undef elf_backend_emit_relocs
9930 #define elf_backend_emit_relocs \
9931 elf_vxworks_emit_relocs
9934 #define elf32_bed ppc_elf_vxworks_bed
9935 #undef elf_backend_post_process_headers
9937 #include "elf32-target.h"