1 /* Motorola 68k series support for 32-bit ELF
2 Copyright 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
28 #include "opcode/m68k.h"
30 static reloc_howto_type *reloc_type_lookup
31 PARAMS ((bfd *, bfd_reloc_code_real_type));
32 static void rtype_to_howto
33 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
34 static struct bfd_hash_entry *elf_m68k_link_hash_newfunc
35 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
36 static struct bfd_link_hash_table *elf_m68k_link_hash_table_create
38 static bfd_boolean elf_m68k_check_relocs
39 PARAMS ((bfd *, struct bfd_link_info *, asection *,
40 const Elf_Internal_Rela *));
41 static bfd_boolean elf_m68k_adjust_dynamic_symbol
42 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
43 static bfd_boolean elf_m68k_size_dynamic_sections
44 PARAMS ((bfd *, struct bfd_link_info *));
45 static bfd_boolean elf_m68k_discard_copies
46 PARAMS ((struct elf_link_hash_entry *, PTR));
47 static bfd_boolean elf_m68k_relocate_section
48 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
49 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
50 static bfd_boolean elf_m68k_finish_dynamic_symbol
51 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
53 static bfd_boolean elf_m68k_finish_dynamic_sections
54 PARAMS ((bfd *, struct bfd_link_info *));
56 static bfd_boolean elf32_m68k_set_private_flags
57 PARAMS ((bfd *, flagword));
58 static bfd_boolean elf32_m68k_merge_private_bfd_data
59 PARAMS ((bfd *, bfd *));
60 static bfd_boolean elf32_m68k_print_private_bfd_data
61 PARAMS ((bfd *, PTR));
62 static enum elf_reloc_type_class elf32_m68k_reloc_type_class
63 PARAMS ((const Elf_Internal_Rela *));
65 static reloc_howto_type howto_table[] = {
66 HOWTO(R_68K_NONE, 0, 0, 0, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_NONE", FALSE, 0, 0x00000000,FALSE),
67 HOWTO(R_68K_32, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_32", FALSE, 0, 0xffffffff,FALSE),
68 HOWTO(R_68K_16, 0, 1,16, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_16", FALSE, 0, 0x0000ffff,FALSE),
69 HOWTO(R_68K_8, 0, 0, 8, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_8", FALSE, 0, 0x000000ff,FALSE),
70 HOWTO(R_68K_PC32, 0, 2,32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_PC32", FALSE, 0, 0xffffffff,TRUE),
71 HOWTO(R_68K_PC16, 0, 1,16, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PC16", FALSE, 0, 0x0000ffff,TRUE),
72 HOWTO(R_68K_PC8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PC8", FALSE, 0, 0x000000ff,TRUE),
73 HOWTO(R_68K_GOT32, 0, 2,32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_GOT32", FALSE, 0, 0xffffffff,TRUE),
74 HOWTO(R_68K_GOT16, 0, 1,16, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT16", FALSE, 0, 0x0000ffff,TRUE),
75 HOWTO(R_68K_GOT8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT8", FALSE, 0, 0x000000ff,TRUE),
76 HOWTO(R_68K_GOT32O, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_GOT32O", FALSE, 0, 0xffffffff,FALSE),
77 HOWTO(R_68K_GOT16O, 0, 1,16, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT16O", FALSE, 0, 0x0000ffff,FALSE),
78 HOWTO(R_68K_GOT8O, 0, 0, 8, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT8O", FALSE, 0, 0x000000ff,FALSE),
79 HOWTO(R_68K_PLT32, 0, 2,32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_PLT32", FALSE, 0, 0xffffffff,TRUE),
80 HOWTO(R_68K_PLT16, 0, 1,16, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT16", FALSE, 0, 0x0000ffff,TRUE),
81 HOWTO(R_68K_PLT8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT8", FALSE, 0, 0x000000ff,TRUE),
82 HOWTO(R_68K_PLT32O, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_PLT32O", FALSE, 0, 0xffffffff,FALSE),
83 HOWTO(R_68K_PLT16O, 0, 1,16, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT16O", FALSE, 0, 0x0000ffff,FALSE),
84 HOWTO(R_68K_PLT8O, 0, 0, 8, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT8O", FALSE, 0, 0x000000ff,FALSE),
85 HOWTO(R_68K_COPY, 0, 0, 0, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_COPY", FALSE, 0, 0xffffffff,FALSE),
86 HOWTO(R_68K_GLOB_DAT, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_GLOB_DAT", FALSE, 0, 0xffffffff,FALSE),
87 HOWTO(R_68K_JMP_SLOT, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_JMP_SLOT", FALSE, 0, 0xffffffff,FALSE),
88 HOWTO(R_68K_RELATIVE, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_RELATIVE", FALSE, 0, 0xffffffff,FALSE),
89 /* GNU extension to record C++ vtable hierarchy. */
90 HOWTO (R_68K_GNU_VTINHERIT, /* type */
92 2, /* size (0 = byte, 1 = short, 2 = long) */
94 FALSE, /* pc_relative */
96 complain_overflow_dont, /* complain_on_overflow */
97 NULL, /* special_function */
98 "R_68K_GNU_VTINHERIT", /* name */
99 FALSE, /* partial_inplace */
103 /* GNU extension to record C++ vtable member usage. */
104 HOWTO (R_68K_GNU_VTENTRY, /* type */
106 2, /* size (0 = byte, 1 = short, 2 = long) */
108 FALSE, /* pc_relative */
110 complain_overflow_dont, /* complain_on_overflow */
111 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
112 "R_68K_GNU_VTENTRY", /* name */
113 FALSE, /* partial_inplace */
120 rtype_to_howto (abfd, cache_ptr, dst)
121 bfd *abfd ATTRIBUTE_UNUSED;
123 Elf_Internal_Rela *dst;
125 BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_68K_max);
126 cache_ptr->howto = &howto_table[ELF32_R_TYPE(dst->r_info)];
129 #define elf_info_to_howto rtype_to_howto
133 bfd_reloc_code_real_type bfd_val;
136 { BFD_RELOC_NONE, R_68K_NONE },
137 { BFD_RELOC_32, R_68K_32 },
138 { BFD_RELOC_16, R_68K_16 },
139 { BFD_RELOC_8, R_68K_8 },
140 { BFD_RELOC_32_PCREL, R_68K_PC32 },
141 { BFD_RELOC_16_PCREL, R_68K_PC16 },
142 { BFD_RELOC_8_PCREL, R_68K_PC8 },
143 { BFD_RELOC_32_GOT_PCREL, R_68K_GOT32 },
144 { BFD_RELOC_16_GOT_PCREL, R_68K_GOT16 },
145 { BFD_RELOC_8_GOT_PCREL, R_68K_GOT8 },
146 { BFD_RELOC_32_GOTOFF, R_68K_GOT32O },
147 { BFD_RELOC_16_GOTOFF, R_68K_GOT16O },
148 { BFD_RELOC_8_GOTOFF, R_68K_GOT8O },
149 { BFD_RELOC_32_PLT_PCREL, R_68K_PLT32 },
150 { BFD_RELOC_16_PLT_PCREL, R_68K_PLT16 },
151 { BFD_RELOC_8_PLT_PCREL, R_68K_PLT8 },
152 { BFD_RELOC_32_PLTOFF, R_68K_PLT32O },
153 { BFD_RELOC_16_PLTOFF, R_68K_PLT16O },
154 { BFD_RELOC_8_PLTOFF, R_68K_PLT8O },
155 { BFD_RELOC_NONE, R_68K_COPY },
156 { BFD_RELOC_68K_GLOB_DAT, R_68K_GLOB_DAT },
157 { BFD_RELOC_68K_JMP_SLOT, R_68K_JMP_SLOT },
158 { BFD_RELOC_68K_RELATIVE, R_68K_RELATIVE },
159 { BFD_RELOC_CTOR, R_68K_32 },
160 { BFD_RELOC_VTABLE_INHERIT, R_68K_GNU_VTINHERIT },
161 { BFD_RELOC_VTABLE_ENTRY, R_68K_GNU_VTENTRY },
164 static reloc_howto_type *
165 reloc_type_lookup (abfd, code)
166 bfd *abfd ATTRIBUTE_UNUSED;
167 bfd_reloc_code_real_type code;
170 for (i = 0; i < sizeof (reloc_map) / sizeof (reloc_map[0]); i++)
172 if (reloc_map[i].bfd_val == code)
173 return &howto_table[reloc_map[i].elf_val];
178 static reloc_howto_type *
179 reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
183 for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++)
184 if (howto_table[i].name != NULL
185 && strcasecmp (howto_table[i].name, r_name) == 0)
186 return &howto_table[i];
191 #define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup
192 #define bfd_elf32_bfd_reloc_name_lookup reloc_name_lookup
193 #define ELF_ARCH bfd_arch_m68k
195 /* Functions for the m68k ELF linker. */
197 /* The name of the dynamic interpreter. This is put in the .interp
200 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
202 /* Describes one of the various PLT styles. */
204 struct elf_m68k_plt_info
206 /* The size of each PLT entry. */
209 /* The template for the first PLT entry. */
210 const bfd_byte *plt0_entry;
212 /* Offsets of fields in PLT0_ENTRY that require R_68K_PC32 relocations.
213 The comments by each member indicate the value that the relocation
216 unsigned int got4; /* .got + 4 */
217 unsigned int got8; /* .got + 8 */
220 /* The template for a symbol's PLT entry. */
221 const bfd_byte *symbol_entry;
223 /* Offsets of fields in SYMBOL_ENTRY that require R_68K_PC32 relocations.
224 The comments by each member indicate the value that the relocation
227 unsigned int got; /* the symbol's .got.plt entry */
228 unsigned int plt; /* .plt */
231 /* The offset of the resolver stub from the start of SYMBOL_ENTRY.
232 The stub starts with "move.l #relocoffset,%d0". */
233 bfd_vma symbol_resolve_entry;
236 /* The size in bytes of an entry in the procedure linkage table. */
238 #define PLT_ENTRY_SIZE 20
240 /* The first entry in a procedure linkage table looks like this. See
241 the SVR4 ABI m68k supplement to see how this works. */
243 static const bfd_byte elf_m68k_plt0_entry[PLT_ENTRY_SIZE] =
245 0x2f, 0x3b, 0x01, 0x70, /* move.l (%pc,addr),-(%sp) */
246 0, 0, 0, 2, /* + (.got + 4) - . */
247 0x4e, 0xfb, 0x01, 0x71, /* jmp ([%pc,addr]) */
248 0, 0, 0, 2, /* + (.got + 8) - . */
249 0, 0, 0, 0 /* pad out to 20 bytes. */
252 /* Subsequent entries in a procedure linkage table look like this. */
254 static const bfd_byte elf_m68k_plt_entry[PLT_ENTRY_SIZE] =
256 0x4e, 0xfb, 0x01, 0x71, /* jmp ([%pc,symbol@GOTPC]) */
257 0, 0, 0, 2, /* + (.got.plt entry) - . */
258 0x2f, 0x3c, /* move.l #offset,-(%sp) */
259 0, 0, 0, 0, /* + reloc index */
260 0x60, 0xff, /* bra.l .plt */
261 0, 0, 0, 0 /* + .plt - . */
264 static const struct elf_m68k_plt_info elf_m68k_plt_info = {
266 elf_m68k_plt0_entry, { 4, 12 },
267 elf_m68k_plt_entry, { 4, 16 }, 8
270 #define ISAB_PLT_ENTRY_SIZE 24
272 static const bfd_byte elf_isab_plt0_entry[ISAB_PLT_ENTRY_SIZE] =
274 0x20, 0x3c, /* move.l #offset,%d0 */
275 0, 0, 0, 0, /* + (.got + 4) - . */
276 0x2f, 0x3b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l),-(%sp) */
277 0x20, 0x3c, /* move.l #offset,%d0 */
278 0, 0, 0, 0, /* + (.got + 8) - . */
279 0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
280 0x4e, 0xd0, /* jmp (%a0) */
284 /* Subsequent entries in a procedure linkage table look like this. */
286 static const bfd_byte elf_isab_plt_entry[ISAB_PLT_ENTRY_SIZE] =
288 0x20, 0x3c, /* move.l #offset,%d0 */
289 0, 0, 0, 0, /* + (.got.plt entry) - . */
290 0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
291 0x4e, 0xd0, /* jmp (%a0) */
292 0x2f, 0x3c, /* move.l #offset,-(%sp) */
293 0, 0, 0, 0, /* + reloc index */
294 0x60, 0xff, /* bra.l .plt */
295 0, 0, 0, 0 /* + .plt - . */
298 static const struct elf_m68k_plt_info elf_isab_plt_info = {
300 elf_isab_plt0_entry, { 2, 12 },
301 elf_isab_plt_entry, { 2, 20 }, 12
304 #define ISAC_PLT_ENTRY_SIZE 24
306 static const bfd_byte elf_isac_plt0_entry[ISAC_PLT_ENTRY_SIZE] =
308 0x20, 0x3c, /* move.l #offset,%d0 */
309 0, 0, 0, 0, /* replaced with .got + 4 - . */
310 0x2e, 0xbb, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l),(%sp) */
311 0x20, 0x3c, /* move.l #offset,%d0 */
312 0, 0, 0, 0, /* replaced with .got + 8 - . */
313 0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
314 0x4e, 0xd0, /* jmp (%a0) */
318 /* Subsequent entries in a procedure linkage table look like this. */
320 static const bfd_byte elf_isac_plt_entry[ISAC_PLT_ENTRY_SIZE] =
322 0x20, 0x3c, /* move.l #offset,%d0 */
323 0, 0, 0, 0, /* replaced with (.got entry) - . */
324 0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
325 0x4e, 0xd0, /* jmp (%a0) */
326 0x2f, 0x3c, /* move.l #offset,-(%sp) */
327 0, 0, 0, 0, /* replaced with offset into relocation table */
328 0x61, 0xff, /* bsr.l .plt */
329 0, 0, 0, 0 /* replaced with .plt - . */
332 static const struct elf_m68k_plt_info elf_isac_plt_info = {
334 elf_isac_plt0_entry, { 2, 12},
335 elf_isac_plt_entry, { 2, 20 }, 12
338 #define CPU32_PLT_ENTRY_SIZE 24
339 /* Procedure linkage table entries for the cpu32 */
340 static const bfd_byte elf_cpu32_plt0_entry[CPU32_PLT_ENTRY_SIZE] =
342 0x2f, 0x3b, 0x01, 0x70, /* move.l (%pc,addr),-(%sp) */
343 0, 0, 0, 2, /* + (.got + 4) - . */
344 0x22, 0x7b, 0x01, 0x70, /* moveal %pc@(0xc), %a1 */
345 0, 0, 0, 2, /* + (.got + 8) - . */
346 0x4e, 0xd1, /* jmp %a1@ */
347 0, 0, 0, 0, /* pad out to 24 bytes. */
351 static const bfd_byte elf_cpu32_plt_entry[CPU32_PLT_ENTRY_SIZE] =
353 0x22, 0x7b, 0x01, 0x70, /* moveal %pc@(0xc), %a1 */
354 0, 0, 0, 2, /* + (.got.plt entry) - . */
355 0x4e, 0xd1, /* jmp %a1@ */
356 0x2f, 0x3c, /* move.l #offset,-(%sp) */
357 0, 0, 0, 0, /* + reloc index */
358 0x60, 0xff, /* bra.l .plt */
359 0, 0, 0, 0, /* + .plt - . */
363 static const struct elf_m68k_plt_info elf_cpu32_plt_info = {
364 CPU32_PLT_ENTRY_SIZE,
365 elf_cpu32_plt0_entry, { 4, 12 },
366 elf_cpu32_plt_entry, { 4, 18 }, 10
369 /* The m68k linker needs to keep track of the number of relocs that it
370 decides to copy in check_relocs for each symbol. This is so that it
371 can discard PC relative relocs if it doesn't need them when linking
372 with -Bsymbolic. We store the information in a field extending the
373 regular ELF linker hash table. */
375 /* This structure keeps track of the number of PC relative relocs we have
376 copied for a given symbol. */
378 struct elf_m68k_pcrel_relocs_copied
381 struct elf_m68k_pcrel_relocs_copied *next;
382 /* A section in dynobj. */
384 /* Number of relocs copied in this section. */
388 /* m68k ELF linker hash entry. */
390 struct elf_m68k_link_hash_entry
392 struct elf_link_hash_entry root;
394 /* Number of PC relative relocs copied for this symbol. */
395 struct elf_m68k_pcrel_relocs_copied *pcrel_relocs_copied;
398 #define elf_m68k_hash_entry(ent) ((struct elf_m68k_link_hash_entry *) (ent))
400 /* m68k ELF linker hash table. */
402 struct elf_m68k_link_hash_table
404 struct elf_link_hash_table root;
406 /* Small local sym to section mapping cache. */
407 struct sym_sec_cache sym_sec;
409 /* The PLT format used by this link, or NULL if the format has not
411 const struct elf_m68k_plt_info *plt_info;
414 /* Get the m68k ELF linker hash table from a link_info structure. */
416 #define elf_m68k_hash_table(p) \
417 ((struct elf_m68k_link_hash_table *) (p)->hash)
419 /* Create an entry in an m68k ELF linker hash table. */
421 static struct bfd_hash_entry *
422 elf_m68k_link_hash_newfunc (entry, table, string)
423 struct bfd_hash_entry *entry;
424 struct bfd_hash_table *table;
427 struct bfd_hash_entry *ret = entry;
429 /* Allocate the structure if it has not already been allocated by a
432 ret = bfd_hash_allocate (table,
433 sizeof (struct elf_m68k_link_hash_entry));
437 /* Call the allocation method of the superclass. */
438 ret = _bfd_elf_link_hash_newfunc (ret, table, string);
440 elf_m68k_hash_entry (ret)->pcrel_relocs_copied = NULL;
445 /* Create an m68k ELF linker hash table. */
447 static struct bfd_link_hash_table *
448 elf_m68k_link_hash_table_create (abfd)
451 struct elf_m68k_link_hash_table *ret;
452 bfd_size_type amt = sizeof (struct elf_m68k_link_hash_table);
454 ret = (struct elf_m68k_link_hash_table *) bfd_malloc (amt);
455 if (ret == (struct elf_m68k_link_hash_table *) NULL)
458 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
459 elf_m68k_link_hash_newfunc,
460 sizeof (struct elf_m68k_link_hash_entry)))
466 ret->sym_sec.abfd = NULL;
467 ret->plt_info = NULL;
469 return &ret->root.root;
472 /* Set the right machine number. */
475 elf32_m68k_object_p (bfd *abfd)
477 unsigned int mach = 0;
478 unsigned features = 0;
479 flagword eflags = elf_elfheader (abfd)->e_flags;
481 if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_M68000)
483 else if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32)
485 else if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO)
489 switch (eflags & EF_M68K_CF_ISA_MASK)
491 case EF_M68K_CF_ISA_A_NODIV:
492 features |= mcfisa_a;
494 case EF_M68K_CF_ISA_A:
495 features |= mcfisa_a|mcfhwdiv;
497 case EF_M68K_CF_ISA_A_PLUS:
498 features |= mcfisa_a|mcfisa_aa|mcfhwdiv|mcfusp;
500 case EF_M68K_CF_ISA_B_NOUSP:
501 features |= mcfisa_a|mcfisa_b|mcfhwdiv;
503 case EF_M68K_CF_ISA_B:
504 features |= mcfisa_a|mcfisa_b|mcfhwdiv|mcfusp;
506 case EF_M68K_CF_ISA_C:
507 features |= mcfisa_a|mcfisa_c|mcfhwdiv|mcfusp;
509 case EF_M68K_CF_ISA_C_NODIV:
510 features |= mcfisa_a|mcfisa_c|mcfusp;
513 switch (eflags & EF_M68K_CF_MAC_MASK)
518 case EF_M68K_CF_EMAC:
522 if (eflags & EF_M68K_CF_FLOAT)
526 mach = bfd_m68k_features_to_mach (features);
527 bfd_default_set_arch_mach (abfd, bfd_arch_m68k, mach);
532 /* Keep m68k-specific flags in the ELF header. */
534 elf32_m68k_set_private_flags (abfd, flags)
538 elf_elfheader (abfd)->e_flags = flags;
539 elf_flags_init (abfd) = TRUE;
543 /* Merge backend specific data from an object file to the output
544 object file when linking. */
546 elf32_m68k_merge_private_bfd_data (ibfd, obfd)
554 const bfd_arch_info_type *arch_info;
556 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
557 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
560 /* Get the merged machine. This checks for incompatibility between
561 Coldfire & non-Coldfire flags, incompability between different
562 Coldfire ISAs, and incompability between different MAC types. */
563 arch_info = bfd_arch_get_compatible (ibfd, obfd, FALSE);
567 bfd_set_arch_mach (obfd, bfd_arch_m68k, arch_info->mach);
569 in_flags = elf_elfheader (ibfd)->e_flags;
570 if (!elf_flags_init (obfd))
572 elf_flags_init (obfd) = TRUE;
573 out_flags = in_flags;
577 out_flags = elf_elfheader (obfd)->e_flags;
578 unsigned int variant_mask;
580 if ((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_M68000)
582 else if ((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32)
584 else if ((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO)
587 variant_mask = EF_M68K_CF_ISA_MASK;
589 in_isa = (in_flags & variant_mask);
590 out_isa = (out_flags & variant_mask);
591 if (in_isa > out_isa)
592 out_flags ^= in_isa ^ out_isa;
593 if (((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32
594 && (out_flags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO)
595 || ((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO
596 && (out_flags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32))
597 out_flags = EF_M68K_FIDO;
599 out_flags |= in_flags ^ in_isa;
601 elf_elfheader (obfd)->e_flags = out_flags;
606 /* Display the flags field. */
608 elf32_m68k_print_private_bfd_data (abfd, ptr)
612 FILE *file = (FILE *) ptr;
613 flagword eflags = elf_elfheader (abfd)->e_flags;
615 BFD_ASSERT (abfd != NULL && ptr != NULL);
617 /* Print normal ELF private data. */
618 _bfd_elf_print_private_bfd_data (abfd, ptr);
620 /* Ignore init flag - it may not be set, despite the flags field containing valid data. */
622 /* xgettext:c-format */
623 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
625 if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_M68000)
626 fprintf (file, " [m68000]");
627 else if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32)
628 fprintf (file, " [cpu32]");
629 else if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO)
630 fprintf (file, " [fido]");
633 if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_CFV4E)
634 fprintf (file, " [cfv4e]");
636 if (eflags & EF_M68K_CF_ISA_MASK)
638 char const *isa = _("unknown");
639 char const *mac = _("unknown");
640 char const *additional = "";
642 switch (eflags & EF_M68K_CF_ISA_MASK)
644 case EF_M68K_CF_ISA_A_NODIV:
646 additional = " [nodiv]";
648 case EF_M68K_CF_ISA_A:
651 case EF_M68K_CF_ISA_A_PLUS:
654 case EF_M68K_CF_ISA_B_NOUSP:
656 additional = " [nousp]";
658 case EF_M68K_CF_ISA_B:
661 case EF_M68K_CF_ISA_C:
664 case EF_M68K_CF_ISA_C_NODIV:
666 additional = " [nodiv]";
669 fprintf (file, " [isa %s]%s", isa, additional);
670 if (eflags & EF_M68K_CF_FLOAT)
671 fprintf (file, " [float]");
672 switch (eflags & EF_M68K_CF_MAC_MASK)
680 case EF_M68K_CF_EMAC:
685 fprintf (file, " [%s]", mac);
693 /* Look through the relocs for a section during the first phase, and
694 allocate space in the global offset table or procedure linkage
698 elf_m68k_check_relocs (abfd, info, sec, relocs)
700 struct bfd_link_info *info;
702 const Elf_Internal_Rela *relocs;
705 Elf_Internal_Shdr *symtab_hdr;
706 struct elf_link_hash_entry **sym_hashes;
707 bfd_signed_vma *local_got_refcounts;
708 const Elf_Internal_Rela *rel;
709 const Elf_Internal_Rela *rel_end;
714 if (info->relocatable)
717 dynobj = elf_hash_table (info)->dynobj;
718 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
719 sym_hashes = elf_sym_hashes (abfd);
720 local_got_refcounts = elf_local_got_refcounts (abfd);
726 rel_end = relocs + sec->reloc_count;
727 for (rel = relocs; rel < rel_end; rel++)
729 unsigned long r_symndx;
730 struct elf_link_hash_entry *h;
732 r_symndx = ELF32_R_SYM (rel->r_info);
734 if (r_symndx < symtab_hdr->sh_info)
738 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
739 while (h->root.type == bfd_link_hash_indirect
740 || h->root.type == bfd_link_hash_warning)
741 h = (struct elf_link_hash_entry *) h->root.u.i.link;
744 switch (ELF32_R_TYPE (rel->r_info))
750 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
756 /* This symbol requires a global offset table entry. */
760 /* Create the .got section. */
761 elf_hash_table (info)->dynobj = dynobj = abfd;
762 if (!_bfd_elf_create_got_section (dynobj, info))
768 sgot = bfd_get_section_by_name (dynobj, ".got");
769 BFD_ASSERT (sgot != NULL);
773 && (h != NULL || info->shared))
775 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
778 srelgot = bfd_make_section_with_flags (dynobj,
787 || !bfd_set_section_alignment (dynobj, srelgot, 2))
794 if (h->got.refcount == 0)
796 /* Make sure this symbol is output as a dynamic symbol. */
800 if (!bfd_elf_link_record_dynamic_symbol (info, h))
804 /* Allocate space in the .got section. */
806 /* Allocate relocation space. */
807 srelgot->size += sizeof (Elf32_External_Rela);
813 /* This is a global offset table entry for a local symbol. */
814 if (local_got_refcounts == NULL)
818 size = symtab_hdr->sh_info;
819 size *= sizeof (bfd_signed_vma);
820 local_got_refcounts = ((bfd_signed_vma *)
821 bfd_zalloc (abfd, size));
822 if (local_got_refcounts == NULL)
824 elf_local_got_refcounts (abfd) = local_got_refcounts;
826 if (local_got_refcounts[r_symndx] == 0)
831 /* If we are generating a shared object, we need to
832 output a R_68K_RELATIVE reloc so that the dynamic
833 linker can adjust this GOT entry. */
834 srelgot->size += sizeof (Elf32_External_Rela);
837 local_got_refcounts[r_symndx]++;
844 /* This symbol requires a procedure linkage table entry. We
845 actually build the entry in adjust_dynamic_symbol,
846 because this might be a case of linking PIC code which is
847 never referenced by a dynamic object, in which case we
848 don't need to generate a procedure linkage table entry
851 /* If this is a local symbol, we resolve it directly without
852 creating a procedure linkage table entry. */
863 /* This symbol requires a procedure linkage table entry. */
867 /* It does not make sense to have this relocation for a
868 local symbol. FIXME: does it? How to handle it if
869 it does make sense? */
870 bfd_set_error (bfd_error_bad_value);
874 /* Make sure this symbol is output as a dynamic symbol. */
878 if (!bfd_elf_link_record_dynamic_symbol (info, h))
889 /* If we are creating a shared library and this is not a local
890 symbol, we need to copy the reloc into the shared library.
891 However when linking with -Bsymbolic and this is a global
892 symbol which is defined in an object we are including in the
893 link (i.e., DEF_REGULAR is set), then we can resolve the
894 reloc directly. At this point we have not seen all the input
895 files, so it is possible that DEF_REGULAR is not set now but
896 will be set later (it is never cleared). We account for that
897 possibility below by storing information in the
898 pcrel_relocs_copied field of the hash table entry. */
900 && (sec->flags & SEC_ALLOC) != 0
903 || h->root.type == bfd_link_hash_defweak
904 || !h->def_regular)))
908 /* Make sure a plt entry is created for this symbol if
909 it turns out to be a function defined by a dynamic
921 /* Make sure a plt entry is created for this symbol if it
922 turns out to be a function defined by a dynamic object. */
926 /* If we are creating a shared library, we need to copy the
927 reloc into the shared library. */
929 && (sec->flags & SEC_ALLOC) != 0)
931 /* When creating a shared object, we must copy these
932 reloc types into the output file. We create a reloc
933 section in dynobj and make room for this reloc. */
938 name = (bfd_elf_string_from_elf_section
940 elf_elfheader (abfd)->e_shstrndx,
941 elf_section_data (sec)->rel_hdr.sh_name));
945 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
946 && strcmp (bfd_get_section_name (abfd, sec),
949 sreloc = bfd_get_section_by_name (dynobj, name);
952 sreloc = bfd_make_section_with_flags (dynobj,
961 || !bfd_set_section_alignment (dynobj, sreloc, 2))
964 elf_section_data (sec)->sreloc = sreloc;
967 if (sec->flags & SEC_READONLY
968 /* Don't set DF_TEXTREL yet for PC relative
969 relocations, they might be discarded later. */
970 && !(ELF32_R_TYPE (rel->r_info) == R_68K_PC8
971 || ELF32_R_TYPE (rel->r_info) == R_68K_PC16
972 || ELF32_R_TYPE (rel->r_info) == R_68K_PC32))
973 info->flags |= DF_TEXTREL;
975 sreloc->size += sizeof (Elf32_External_Rela);
977 /* We count the number of PC relative relocations we have
978 entered for this symbol, so that we can discard them
979 again if, in the -Bsymbolic case, the symbol is later
980 defined by a regular object, or, in the normal shared
981 case, the symbol is forced to be local. Note that this
982 function is only called if we are using an m68kelf linker
983 hash table, which means that h is really a pointer to an
984 elf_m68k_link_hash_entry. */
985 if (ELF32_R_TYPE (rel->r_info) == R_68K_PC8
986 || ELF32_R_TYPE (rel->r_info) == R_68K_PC16
987 || ELF32_R_TYPE (rel->r_info) == R_68K_PC32)
989 struct elf_m68k_pcrel_relocs_copied *p;
990 struct elf_m68k_pcrel_relocs_copied **head;
994 struct elf_m68k_link_hash_entry *eh
995 = elf_m68k_hash_entry (h);
996 head = &eh->pcrel_relocs_copied;
1003 s = (bfd_section_from_r_symndx
1004 (abfd, &elf_m68k_hash_table (info)->sym_sec,
1009 vpp = &elf_section_data (s)->local_dynrel;
1010 head = (struct elf_m68k_pcrel_relocs_copied **) vpp;
1013 for (p = *head; p != NULL; p = p->next)
1014 if (p->section == sreloc)
1019 p = ((struct elf_m68k_pcrel_relocs_copied *)
1020 bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
1025 p->section = sreloc;
1035 /* This relocation describes the C++ object vtable hierarchy.
1036 Reconstruct it for later use during GC. */
1037 case R_68K_GNU_VTINHERIT:
1038 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1042 /* This relocation describes which C++ vtable entries are actually
1043 used. Record for later use during GC. */
1044 case R_68K_GNU_VTENTRY:
1045 BFD_ASSERT (h != NULL);
1047 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1059 /* Return the section that should be marked against GC for a given
1063 elf_m68k_gc_mark_hook (asection *sec,
1064 struct bfd_link_info *info,
1065 Elf_Internal_Rela *rel,
1066 struct elf_link_hash_entry *h,
1067 Elf_Internal_Sym *sym)
1070 switch (ELF32_R_TYPE (rel->r_info))
1072 case R_68K_GNU_VTINHERIT:
1073 case R_68K_GNU_VTENTRY:
1077 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1080 /* Update the got entry reference counts for the section being removed. */
1083 elf_m68k_gc_sweep_hook (bfd *abfd,
1084 struct bfd_link_info *info,
1086 const Elf_Internal_Rela *relocs)
1088 Elf_Internal_Shdr *symtab_hdr;
1089 struct elf_link_hash_entry **sym_hashes;
1090 bfd_signed_vma *local_got_refcounts;
1091 const Elf_Internal_Rela *rel, *relend;
1096 if (info->relocatable)
1099 dynobj = elf_hash_table (info)->dynobj;
1103 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1104 sym_hashes = elf_sym_hashes (abfd);
1105 local_got_refcounts = elf_local_got_refcounts (abfd);
1107 sgot = bfd_get_section_by_name (dynobj, ".got");
1108 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1110 relend = relocs + sec->reloc_count;
1111 for (rel = relocs; rel < relend; rel++)
1113 unsigned long r_symndx;
1114 struct elf_link_hash_entry *h = NULL;
1116 r_symndx = ELF32_R_SYM (rel->r_info);
1117 if (r_symndx >= symtab_hdr->sh_info)
1119 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1120 while (h->root.type == bfd_link_hash_indirect
1121 || h->root.type == bfd_link_hash_warning)
1122 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1125 switch (ELF32_R_TYPE (rel->r_info))
1135 if (h->got.refcount > 0)
1138 if (h->got.refcount == 0)
1140 /* We don't need the .got entry any more. */
1142 srelgot->size -= sizeof (Elf32_External_Rela);
1146 else if (local_got_refcounts != NULL)
1148 if (local_got_refcounts[r_symndx] > 0)
1150 --local_got_refcounts[r_symndx];
1151 if (local_got_refcounts[r_symndx] == 0)
1153 /* We don't need the .got entry any more. */
1156 srelgot->size -= sizeof (Elf32_External_Rela);
1176 if (h->plt.refcount > 0)
1189 /* Return the type of PLT associated with OUTPUT_BFD. */
1191 static const struct elf_m68k_plt_info *
1192 elf_m68k_get_plt_info (bfd *output_bfd)
1194 unsigned int features;
1196 features = bfd_m68k_mach_to_features (bfd_get_mach (output_bfd));
1197 if (features & cpu32)
1198 return &elf_cpu32_plt_info;
1199 if (features & mcfisa_b)
1200 return &elf_isab_plt_info;
1201 if (features & mcfisa_c)
1202 return &elf_isac_plt_info;
1203 return &elf_m68k_plt_info;
1206 /* This function is called after all the input files have been read,
1207 and the input sections have been assigned to output sections.
1208 It's a convenient place to determine the PLT style. */
1211 elf_m68k_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
1213 elf_m68k_hash_table (info)->plt_info = elf_m68k_get_plt_info (output_bfd);
1217 /* Adjust a symbol defined by a dynamic object and referenced by a
1218 regular object. The current definition is in some section of the
1219 dynamic object, but we're not including those sections. We have to
1220 change the definition to something the rest of the link can
1224 elf_m68k_adjust_dynamic_symbol (info, h)
1225 struct bfd_link_info *info;
1226 struct elf_link_hash_entry *h;
1228 struct elf_m68k_link_hash_table *htab;
1232 htab = elf_m68k_hash_table (info);
1233 dynobj = elf_hash_table (info)->dynobj;
1235 /* Make sure we know what is going on here. */
1236 BFD_ASSERT (dynobj != NULL
1238 || h->u.weakdef != NULL
1241 && !h->def_regular)));
1243 /* If this is a function, put it in the procedure linkage table. We
1244 will fill in the contents of the procedure linkage table later,
1245 when we know the address of the .got section. */
1246 if (h->type == STT_FUNC
1249 if ((h->plt.refcount <= 0
1250 || SYMBOL_CALLS_LOCAL (info, h)
1251 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1252 && h->root.type == bfd_link_hash_undefweak))
1253 /* We must always create the plt entry if it was referenced
1254 by a PLTxxO relocation. In this case we already recorded
1255 it as a dynamic symbol. */
1256 && h->dynindx == -1)
1258 /* This case can occur if we saw a PLTxx reloc in an input
1259 file, but the symbol was never referred to by a dynamic
1260 object, or if all references were garbage collected. In
1261 such a case, we don't actually need to build a procedure
1262 linkage table, and we can just do a PCxx reloc instead. */
1263 h->plt.offset = (bfd_vma) -1;
1268 /* Make sure this symbol is output as a dynamic symbol. */
1269 if (h->dynindx == -1
1270 && !h->forced_local)
1272 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1276 s = bfd_get_section_by_name (dynobj, ".plt");
1277 BFD_ASSERT (s != NULL);
1279 /* If this is the first .plt entry, make room for the special
1282 s->size = htab->plt_info->size;
1284 /* If this symbol is not defined in a regular file, and we are
1285 not generating a shared library, then set the symbol to this
1286 location in the .plt. This is required to make function
1287 pointers compare as equal between the normal executable and
1288 the shared library. */
1292 h->root.u.def.section = s;
1293 h->root.u.def.value = s->size;
1296 h->plt.offset = s->size;
1298 /* Make room for this entry. */
1299 s->size += htab->plt_info->size;
1301 /* We also need to make an entry in the .got.plt section, which
1302 will be placed in the .got section by the linker script. */
1303 s = bfd_get_section_by_name (dynobj, ".got.plt");
1304 BFD_ASSERT (s != NULL);
1307 /* We also need to make an entry in the .rela.plt section. */
1308 s = bfd_get_section_by_name (dynobj, ".rela.plt");
1309 BFD_ASSERT (s != NULL);
1310 s->size += sizeof (Elf32_External_Rela);
1315 /* Reinitialize the plt offset now that it is not used as a reference
1317 h->plt.offset = (bfd_vma) -1;
1319 /* If this is a weak symbol, and there is a real definition, the
1320 processor independent code will have arranged for us to see the
1321 real definition first, and we can just use the same value. */
1322 if (h->u.weakdef != NULL)
1324 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1325 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1326 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1327 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1331 /* This is a reference to a symbol defined by a dynamic object which
1332 is not a function. */
1334 /* If we are creating a shared library, we must presume that the
1335 only references to the symbol are via the global offset table.
1336 For such cases we need not do anything here; the relocations will
1337 be handled correctly by relocate_section. */
1343 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1344 h->root.root.string);
1348 /* We must allocate the symbol in our .dynbss section, which will
1349 become part of the .bss section of the executable. There will be
1350 an entry for this symbol in the .dynsym section. The dynamic
1351 object will contain position independent code, so all references
1352 from the dynamic object to this symbol will go through the global
1353 offset table. The dynamic linker will use the .dynsym entry to
1354 determine the address it must put in the global offset table, so
1355 both the dynamic object and the regular object will refer to the
1356 same memory location for the variable. */
1358 s = bfd_get_section_by_name (dynobj, ".dynbss");
1359 BFD_ASSERT (s != NULL);
1361 /* We must generate a R_68K_COPY reloc to tell the dynamic linker to
1362 copy the initial value out of the dynamic object and into the
1363 runtime process image. We need to remember the offset into the
1364 .rela.bss section we are going to use. */
1365 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1369 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
1370 BFD_ASSERT (srel != NULL);
1371 srel->size += sizeof (Elf32_External_Rela);
1375 return _bfd_elf_adjust_dynamic_copy (h, s);
1378 /* Set the sizes of the dynamic sections. */
1381 elf_m68k_size_dynamic_sections (output_bfd, info)
1382 bfd *output_bfd ATTRIBUTE_UNUSED;
1383 struct bfd_link_info *info;
1390 dynobj = elf_hash_table (info)->dynobj;
1391 BFD_ASSERT (dynobj != NULL);
1393 if (elf_hash_table (info)->dynamic_sections_created)
1395 /* Set the contents of the .interp section to the interpreter. */
1396 if (info->executable)
1398 s = bfd_get_section_by_name (dynobj, ".interp");
1399 BFD_ASSERT (s != NULL);
1400 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
1401 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1406 /* We may have created entries in the .rela.got section.
1407 However, if we are not creating the dynamic sections, we will
1408 not actually use these entries. Reset the size of .rela.got,
1409 which will cause it to get stripped from the output file
1411 s = bfd_get_section_by_name (dynobj, ".rela.got");
1416 /* If this is a -Bsymbolic shared link, then we need to discard all
1417 PC relative relocs against symbols defined in a regular object.
1418 For the normal shared case we discard the PC relative relocs
1419 against symbols that have become local due to visibility changes.
1420 We allocated space for them in the check_relocs routine, but we
1421 will not fill them in in the relocate_section routine. */
1423 elf_link_hash_traverse (elf_hash_table (info),
1424 elf_m68k_discard_copies,
1427 /* The check_relocs and adjust_dynamic_symbol entry points have
1428 determined the sizes of the various dynamic sections. Allocate
1432 for (s = dynobj->sections; s != NULL; s = s->next)
1436 if ((s->flags & SEC_LINKER_CREATED) == 0)
1439 /* It's OK to base decisions on the section name, because none
1440 of the dynobj section names depend upon the input files. */
1441 name = bfd_get_section_name (dynobj, s);
1443 if (strcmp (name, ".plt") == 0)
1445 /* Remember whether there is a PLT. */
1448 else if (CONST_STRNEQ (name, ".rela"))
1454 /* We use the reloc_count field as a counter if we need
1455 to copy relocs into the output file. */
1459 else if (! CONST_STRNEQ (name, ".got")
1460 && strcmp (name, ".dynbss") != 0)
1462 /* It's not one of our sections, so don't allocate space. */
1468 /* If we don't need this section, strip it from the
1469 output file. This is mostly to handle .rela.bss and
1470 .rela.plt. We must create both sections in
1471 create_dynamic_sections, because they must be created
1472 before the linker maps input sections to output
1473 sections. The linker does that before
1474 adjust_dynamic_symbol is called, and it is that
1475 function which decides whether anything needs to go
1476 into these sections. */
1477 s->flags |= SEC_EXCLUDE;
1481 if ((s->flags & SEC_HAS_CONTENTS) == 0)
1484 /* Allocate memory for the section contents. */
1485 /* FIXME: This should be a call to bfd_alloc not bfd_zalloc.
1486 Unused entries should be reclaimed before the section's contents
1487 are written out, but at the moment this does not happen. Thus in
1488 order to prevent writing out garbage, we initialise the section's
1489 contents to zero. */
1490 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
1491 if (s->contents == NULL)
1495 if (elf_hash_table (info)->dynamic_sections_created)
1497 /* Add some entries to the .dynamic section. We fill in the
1498 values later, in elf_m68k_finish_dynamic_sections, but we
1499 must add the entries now so that we get the correct size for
1500 the .dynamic section. The DT_DEBUG entry is filled in by the
1501 dynamic linker and used by the debugger. */
1502 #define add_dynamic_entry(TAG, VAL) \
1503 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
1507 if (!add_dynamic_entry (DT_DEBUG, 0))
1513 if (!add_dynamic_entry (DT_PLTGOT, 0)
1514 || !add_dynamic_entry (DT_PLTRELSZ, 0)
1515 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
1516 || !add_dynamic_entry (DT_JMPREL, 0))
1522 if (!add_dynamic_entry (DT_RELA, 0)
1523 || !add_dynamic_entry (DT_RELASZ, 0)
1524 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
1528 if ((info->flags & DF_TEXTREL) != 0)
1530 if (!add_dynamic_entry (DT_TEXTREL, 0))
1534 #undef add_dynamic_entry
1539 /* This function is called via elf_link_hash_traverse if we are
1540 creating a shared object. In the -Bsymbolic case it discards the
1541 space allocated to copy PC relative relocs against symbols which
1542 are defined in regular objects. For the normal shared case, it
1543 discards space for pc-relative relocs that have become local due to
1544 symbol visibility changes. We allocated space for them in the
1545 check_relocs routine, but we won't fill them in in the
1546 relocate_section routine.
1548 We also check whether any of the remaining relocations apply
1549 against a readonly section, and set the DF_TEXTREL flag in this
1553 elf_m68k_discard_copies (h, inf)
1554 struct elf_link_hash_entry *h;
1557 struct bfd_link_info *info = (struct bfd_link_info *) inf;
1558 struct elf_m68k_pcrel_relocs_copied *s;
1560 if (h->root.type == bfd_link_hash_warning)
1561 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1565 && !h->forced_local))
1567 if ((info->flags & DF_TEXTREL) == 0)
1569 /* Look for relocations against read-only sections. */
1570 for (s = elf_m68k_hash_entry (h)->pcrel_relocs_copied;
1573 if ((s->section->flags & SEC_READONLY) != 0)
1575 info->flags |= DF_TEXTREL;
1583 for (s = elf_m68k_hash_entry (h)->pcrel_relocs_copied;
1586 s->section->size -= s->count * sizeof (Elf32_External_Rela);
1591 /* Relocate an M68K ELF section. */
1594 elf_m68k_relocate_section (output_bfd, info, input_bfd, input_section,
1595 contents, relocs, local_syms, local_sections)
1597 struct bfd_link_info *info;
1599 asection *input_section;
1601 Elf_Internal_Rela *relocs;
1602 Elf_Internal_Sym *local_syms;
1603 asection **local_sections;
1606 Elf_Internal_Shdr *symtab_hdr;
1607 struct elf_link_hash_entry **sym_hashes;
1608 bfd_vma *local_got_offsets;
1612 Elf_Internal_Rela *rel;
1613 Elf_Internal_Rela *relend;
1615 dynobj = elf_hash_table (info)->dynobj;
1616 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1617 sym_hashes = elf_sym_hashes (input_bfd);
1618 local_got_offsets = elf_local_got_offsets (input_bfd);
1625 relend = relocs + input_section->reloc_count;
1626 for (; rel < relend; rel++)
1629 reloc_howto_type *howto;
1630 unsigned long r_symndx;
1631 struct elf_link_hash_entry *h;
1632 Elf_Internal_Sym *sym;
1635 bfd_boolean unresolved_reloc;
1636 bfd_reloc_status_type r;
1638 r_type = ELF32_R_TYPE (rel->r_info);
1639 if (r_type < 0 || r_type >= (int) R_68K_max)
1641 bfd_set_error (bfd_error_bad_value);
1644 howto = howto_table + r_type;
1646 r_symndx = ELF32_R_SYM (rel->r_info);
1651 unresolved_reloc = FALSE;
1653 if (r_symndx < symtab_hdr->sh_info)
1655 sym = local_syms + r_symndx;
1656 sec = local_sections[r_symndx];
1657 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1663 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1664 r_symndx, symtab_hdr, sym_hashes,
1666 unresolved_reloc, warned);
1669 if (sec != NULL && elf_discarded_section (sec))
1671 /* For relocs against symbols from removed linkonce sections,
1672 or sections discarded by a linker script, we just want the
1673 section contents zeroed. Avoid any special processing. */
1674 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
1680 if (info->relocatable)
1688 /* Relocation is to the address of the entry for this symbol
1689 in the global offset table. */
1691 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1697 /* Relocation is the offset of the entry for this symbol in
1698 the global offset table. */
1705 sgot = bfd_get_section_by_name (dynobj, ".got");
1706 BFD_ASSERT (sgot != NULL);
1713 off = h->got.offset;
1714 BFD_ASSERT (off != (bfd_vma) -1);
1716 dyn = elf_hash_table (info)->dynamic_sections_created;
1717 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
1724 /* This is actually a static link, or it is a
1725 -Bsymbolic link and the symbol is defined
1726 locally, or the symbol was forced to be local
1727 because of a version file.. We must initialize
1728 this entry in the global offset table. Since
1729 the offset must always be a multiple of 4, we
1730 use the least significant bit to record whether
1731 we have initialized it already.
1733 When doing a dynamic link, we create a .rela.got
1734 relocation entry to initialize the value. This
1735 is done in the finish_dynamic_symbol routine. */
1740 bfd_put_32 (output_bfd, relocation,
1741 sgot->contents + off);
1746 unresolved_reloc = FALSE;
1750 BFD_ASSERT (local_got_offsets != NULL
1751 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1753 off = local_got_offsets[r_symndx];
1755 /* The offset must always be a multiple of 4. We use
1756 the least significant bit to record whether we have
1757 already generated the necessary reloc. */
1762 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1767 Elf_Internal_Rela outrel;
1770 s = bfd_get_section_by_name (dynobj, ".rela.got");
1771 BFD_ASSERT (s != NULL);
1773 outrel.r_offset = (sgot->output_section->vma
1774 + sgot->output_offset
1776 outrel.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
1777 outrel.r_addend = relocation;
1779 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
1780 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1783 local_got_offsets[r_symndx] |= 1;
1787 relocation = sgot->output_offset + off;
1788 if (r_type == R_68K_GOT8O
1789 || r_type == R_68K_GOT16O
1790 || r_type == R_68K_GOT32O)
1792 /* This relocation does not use the addend. */
1796 relocation += sgot->output_section->vma;
1803 /* Relocation is to the entry for this symbol in the
1804 procedure linkage table. */
1806 /* Resolve a PLTxx reloc against a local symbol directly,
1807 without using the procedure linkage table. */
1811 if (h->plt.offset == (bfd_vma) -1
1812 || !elf_hash_table (info)->dynamic_sections_created)
1814 /* We didn't make a PLT entry for this symbol. This
1815 happens when statically linking PIC code, or when
1816 using -Bsymbolic. */
1822 splt = bfd_get_section_by_name (dynobj, ".plt");
1823 BFD_ASSERT (splt != NULL);
1826 relocation = (splt->output_section->vma
1827 + splt->output_offset
1829 unresolved_reloc = FALSE;
1835 /* Relocation is the offset of the entry for this symbol in
1836 the procedure linkage table. */
1837 BFD_ASSERT (h != NULL && h->plt.offset != (bfd_vma) -1);
1841 splt = bfd_get_section_by_name (dynobj, ".plt");
1842 BFD_ASSERT (splt != NULL);
1845 relocation = h->plt.offset;
1846 unresolved_reloc = FALSE;
1848 /* This relocation does not use the addend. */
1858 && h->forced_local))
1866 && (input_section->flags & SEC_ALLOC) != 0
1868 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1869 || h->root.type != bfd_link_hash_undefweak)
1870 && ((r_type != R_68K_PC8
1871 && r_type != R_68K_PC16
1872 && r_type != R_68K_PC32)
1876 || !h->def_regular))))
1878 Elf_Internal_Rela outrel;
1880 bfd_boolean skip, relocate;
1882 /* When generating a shared object, these relocations
1883 are copied into the output file to be resolved at run
1890 _bfd_elf_section_offset (output_bfd, info, input_section,
1892 if (outrel.r_offset == (bfd_vma) -1)
1894 else if (outrel.r_offset == (bfd_vma) -2)
1895 skip = TRUE, relocate = TRUE;
1896 outrel.r_offset += (input_section->output_section->vma
1897 + input_section->output_offset);
1900 memset (&outrel, 0, sizeof outrel);
1903 && (r_type == R_68K_PC8
1904 || r_type == R_68K_PC16
1905 || r_type == R_68K_PC32
1908 || !h->def_regular))
1910 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1911 outrel.r_addend = rel->r_addend;
1915 /* This symbol is local, or marked to become local. */
1916 outrel.r_addend = relocation + rel->r_addend;
1918 if (r_type == R_68K_32)
1921 outrel.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
1927 if (bfd_is_abs_section (sec))
1929 else if (sec == NULL || sec->owner == NULL)
1931 bfd_set_error (bfd_error_bad_value);
1938 /* We are turning this relocation into one
1939 against a section symbol. It would be
1940 proper to subtract the symbol's value,
1941 osec->vma, from the emitted reloc addend,
1942 but ld.so expects buggy relocs. */
1943 osec = sec->output_section;
1944 indx = elf_section_data (osec)->dynindx;
1947 struct elf_link_hash_table *htab;
1948 htab = elf_hash_table (info);
1949 osec = htab->text_index_section;
1950 indx = elf_section_data (osec)->dynindx;
1952 BFD_ASSERT (indx != 0);
1955 outrel.r_info = ELF32_R_INFO (indx, r_type);
1959 sreloc = elf_section_data (input_section)->sreloc;
1963 loc = sreloc->contents;
1964 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1965 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1967 /* This reloc will be computed at runtime, so there's no
1968 need to do anything now, except for R_68K_32
1969 relocations that have been turned into
1977 case R_68K_GNU_VTINHERIT:
1978 case R_68K_GNU_VTENTRY:
1979 /* These are no-ops in the end. */
1986 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
1987 because such sections are not SEC_ALLOC and thus ld.so will
1988 not process them. */
1989 if (unresolved_reloc
1990 && !((input_section->flags & SEC_DEBUGGING) != 0
1993 (*_bfd_error_handler)
1994 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
1997 (long) rel->r_offset,
1999 h->root.root.string);
2003 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2004 contents, rel->r_offset,
2005 relocation, rel->r_addend);
2007 if (r != bfd_reloc_ok)
2012 name = h->root.root.string;
2015 name = bfd_elf_string_from_elf_section (input_bfd,
2016 symtab_hdr->sh_link,
2021 name = bfd_section_name (input_bfd, sec);
2024 if (r == bfd_reloc_overflow)
2026 if (!(info->callbacks->reloc_overflow
2027 (info, (h ? &h->root : NULL), name, howto->name,
2028 (bfd_vma) 0, input_bfd, input_section,
2034 (*_bfd_error_handler)
2035 (_("%B(%A+0x%lx): reloc against `%s': error %d"),
2036 input_bfd, input_section,
2037 (long) rel->r_offset, name, (int) r);
2046 /* Install an M_68K_PC32 relocation against VALUE at offset OFFSET
2047 into section SEC. */
2050 elf_m68k_install_pc32 (asection *sec, bfd_vma offset, bfd_vma value)
2052 /* Make VALUE PC-relative. */
2053 value -= sec->output_section->vma + offset;
2055 /* Apply any in-place addend. */
2056 value += bfd_get_32 (sec->owner, sec->contents + offset);
2058 bfd_put_32 (sec->owner, value, sec->contents + offset);
2061 /* Finish up dynamic symbol handling. We set the contents of various
2062 dynamic sections here. */
2065 elf_m68k_finish_dynamic_symbol (output_bfd, info, h, sym)
2067 struct bfd_link_info *info;
2068 struct elf_link_hash_entry *h;
2069 Elf_Internal_Sym *sym;
2073 dynobj = elf_hash_table (info)->dynobj;
2075 if (h->plt.offset != (bfd_vma) -1)
2077 const struct elf_m68k_plt_info *plt_info;
2083 Elf_Internal_Rela rela;
2086 /* This symbol has an entry in the procedure linkage table. Set
2089 BFD_ASSERT (h->dynindx != -1);
2091 plt_info = elf_m68k_hash_table (info)->plt_info;
2092 splt = bfd_get_section_by_name (dynobj, ".plt");
2093 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
2094 srela = bfd_get_section_by_name (dynobj, ".rela.plt");
2095 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
2097 /* Get the index in the procedure linkage table which
2098 corresponds to this symbol. This is the index of this symbol
2099 in all the symbols for which we are making plt entries. The
2100 first entry in the procedure linkage table is reserved. */
2101 plt_index = (h->plt.offset / plt_info->size) - 1;
2103 /* Get the offset into the .got table of the entry that
2104 corresponds to this function. Each .got entry is 4 bytes.
2105 The first three are reserved. */
2106 got_offset = (plt_index + 3) * 4;
2108 memcpy (splt->contents + h->plt.offset,
2109 plt_info->symbol_entry,
2112 elf_m68k_install_pc32 (splt, h->plt.offset + plt_info->symbol_relocs.got,
2113 (sgot->output_section->vma
2114 + sgot->output_offset
2117 bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
2120 + plt_info->symbol_resolve_entry + 2);
2122 elf_m68k_install_pc32 (splt, h->plt.offset + plt_info->symbol_relocs.plt,
2123 splt->output_section->vma);
2125 /* Fill in the entry in the global offset table. */
2126 bfd_put_32 (output_bfd,
2127 (splt->output_section->vma
2128 + splt->output_offset
2130 + plt_info->symbol_resolve_entry),
2131 sgot->contents + got_offset);
2133 /* Fill in the entry in the .rela.plt section. */
2134 rela.r_offset = (sgot->output_section->vma
2135 + sgot->output_offset
2137 rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_JMP_SLOT);
2139 loc = srela->contents + plt_index * sizeof (Elf32_External_Rela);
2140 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2142 if (!h->def_regular)
2144 /* Mark the symbol as undefined, rather than as defined in
2145 the .plt section. Leave the value alone. */
2146 sym->st_shndx = SHN_UNDEF;
2150 if (h->got.offset != (bfd_vma) -1)
2154 Elf_Internal_Rela rela;
2157 /* This symbol has an entry in the global offset table. Set it
2160 sgot = bfd_get_section_by_name (dynobj, ".got");
2161 srela = bfd_get_section_by_name (dynobj, ".rela.got");
2162 BFD_ASSERT (sgot != NULL && srela != NULL);
2164 rela.r_offset = (sgot->output_section->vma
2165 + sgot->output_offset
2166 + (h->got.offset &~ (bfd_vma) 1));
2168 /* If this is a -Bsymbolic link, and the symbol is defined
2169 locally, we just want to emit a RELATIVE reloc. Likewise if
2170 the symbol was forced to be local because of a version file.
2171 The entry in the global offset table will already have been
2172 initialized in the relocate_section function. */
2179 rela.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
2180 rela.r_addend = bfd_get_signed_32 (output_bfd,
2182 + (h->got.offset &~ (bfd_vma) 1)));
2186 bfd_put_32 (output_bfd, (bfd_vma) 0,
2187 sgot->contents + (h->got.offset &~ (bfd_vma) 1));
2188 rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_GLOB_DAT);
2192 loc = srela->contents;
2193 loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
2194 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2200 Elf_Internal_Rela rela;
2203 /* This symbol needs a copy reloc. Set it up. */
2205 BFD_ASSERT (h->dynindx != -1
2206 && (h->root.type == bfd_link_hash_defined
2207 || h->root.type == bfd_link_hash_defweak));
2209 s = bfd_get_section_by_name (h->root.u.def.section->owner,
2211 BFD_ASSERT (s != NULL);
2213 rela.r_offset = (h->root.u.def.value
2214 + h->root.u.def.section->output_section->vma
2215 + h->root.u.def.section->output_offset);
2216 rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_COPY);
2218 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
2219 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2222 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
2223 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2224 || h == elf_hash_table (info)->hgot)
2225 sym->st_shndx = SHN_ABS;
2230 /* Finish up the dynamic sections. */
2233 elf_m68k_finish_dynamic_sections (output_bfd, info)
2235 struct bfd_link_info *info;
2241 dynobj = elf_hash_table (info)->dynobj;
2243 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
2244 BFD_ASSERT (sgot != NULL);
2245 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
2247 if (elf_hash_table (info)->dynamic_sections_created)
2250 Elf32_External_Dyn *dyncon, *dynconend;
2252 splt = bfd_get_section_by_name (dynobj, ".plt");
2253 BFD_ASSERT (splt != NULL && sdyn != NULL);
2255 dyncon = (Elf32_External_Dyn *) sdyn->contents;
2256 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
2257 for (; dyncon < dynconend; dyncon++)
2259 Elf_Internal_Dyn dyn;
2263 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
2276 s = bfd_get_section_by_name (output_bfd, name);
2277 BFD_ASSERT (s != NULL);
2278 dyn.d_un.d_ptr = s->vma;
2279 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2283 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2284 BFD_ASSERT (s != NULL);
2285 dyn.d_un.d_val = s->size;
2286 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2290 /* The procedure linkage table relocs (DT_JMPREL) should
2291 not be included in the overall relocs (DT_RELA).
2292 Therefore, we override the DT_RELASZ entry here to
2293 make it not include the JMPREL relocs. Since the
2294 linker script arranges for .rela.plt to follow all
2295 other relocation sections, we don't have to worry
2296 about changing the DT_RELA entry. */
2297 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2299 dyn.d_un.d_val -= s->size;
2300 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2305 /* Fill in the first entry in the procedure linkage table. */
2308 const struct elf_m68k_plt_info *plt_info;
2310 plt_info = elf_m68k_hash_table (info)->plt_info;
2311 memcpy (splt->contents, plt_info->plt0_entry, plt_info->size);
2313 elf_m68k_install_pc32 (splt, plt_info->plt0_relocs.got4,
2314 (sgot->output_section->vma
2315 + sgot->output_offset
2318 elf_m68k_install_pc32 (splt, plt_info->plt0_relocs.got8,
2319 (sgot->output_section->vma
2320 + sgot->output_offset
2323 elf_section_data (splt->output_section)->this_hdr.sh_entsize
2328 /* Fill in the first three entries in the global offset table. */
2332 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
2334 bfd_put_32 (output_bfd,
2335 sdyn->output_section->vma + sdyn->output_offset,
2337 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
2338 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
2341 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
2346 /* Given a .data section and a .emreloc in-memory section, store
2347 relocation information into the .emreloc section which can be
2348 used at runtime to relocate the section. This is called by the
2349 linker when the --embedded-relocs switch is used. This is called
2350 after the add_symbols entry point has been called for all the
2351 objects, and before the final_link entry point is called. */
2354 bfd_m68k_elf32_create_embedded_relocs (abfd, info, datasec, relsec, errmsg)
2356 struct bfd_link_info *info;
2361 Elf_Internal_Shdr *symtab_hdr;
2362 Elf_Internal_Sym *isymbuf = NULL;
2363 Elf_Internal_Rela *internal_relocs = NULL;
2364 Elf_Internal_Rela *irel, *irelend;
2368 BFD_ASSERT (! info->relocatable);
2372 if (datasec->reloc_count == 0)
2375 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2377 /* Get a copy of the native relocations. */
2378 internal_relocs = (_bfd_elf_link_read_relocs
2379 (abfd, datasec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
2380 info->keep_memory));
2381 if (internal_relocs == NULL)
2384 amt = (bfd_size_type) datasec->reloc_count * 12;
2385 relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
2386 if (relsec->contents == NULL)
2389 p = relsec->contents;
2391 irelend = internal_relocs + datasec->reloc_count;
2392 for (irel = internal_relocs; irel < irelend; irel++, p += 12)
2394 asection *targetsec;
2396 /* We are going to write a four byte longword into the runtime
2397 reloc section. The longword will be the address in the data
2398 section which must be relocated. It is followed by the name
2399 of the target section NUL-padded or truncated to 8
2402 /* We can only relocate absolute longword relocs at run time. */
2403 if (ELF32_R_TYPE (irel->r_info) != (int) R_68K_32)
2405 *errmsg = _("unsupported reloc type");
2406 bfd_set_error (bfd_error_bad_value);
2410 /* Get the target section referred to by the reloc. */
2411 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
2413 /* A local symbol. */
2414 Elf_Internal_Sym *isym;
2416 /* Read this BFD's local symbols if we haven't done so already. */
2417 if (isymbuf == NULL)
2419 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2420 if (isymbuf == NULL)
2421 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
2422 symtab_hdr->sh_info, 0,
2424 if (isymbuf == NULL)
2428 isym = isymbuf + ELF32_R_SYM (irel->r_info);
2429 targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
2434 struct elf_link_hash_entry *h;
2436 /* An external symbol. */
2437 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
2438 h = elf_sym_hashes (abfd)[indx];
2439 BFD_ASSERT (h != NULL);
2440 if (h->root.type == bfd_link_hash_defined
2441 || h->root.type == bfd_link_hash_defweak)
2442 targetsec = h->root.u.def.section;
2447 bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p);
2448 memset (p + 4, 0, 8);
2449 if (targetsec != NULL)
2450 strncpy ((char *) p + 4, targetsec->output_section->name, 8);
2453 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
2455 if (internal_relocs != NULL
2456 && elf_section_data (datasec)->relocs != internal_relocs)
2457 free (internal_relocs);
2461 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
2463 if (internal_relocs != NULL
2464 && elf_section_data (datasec)->relocs != internal_relocs)
2465 free (internal_relocs);
2469 static enum elf_reloc_type_class
2470 elf32_m68k_reloc_type_class (rela)
2471 const Elf_Internal_Rela *rela;
2473 switch ((int) ELF32_R_TYPE (rela->r_info))
2475 case R_68K_RELATIVE:
2476 return reloc_class_relative;
2477 case R_68K_JMP_SLOT:
2478 return reloc_class_plt;
2480 return reloc_class_copy;
2482 return reloc_class_normal;
2486 /* Return address for Ith PLT stub in section PLT, for relocation REL
2487 or (bfd_vma) -1 if it should not be included. */
2490 elf_m68k_plt_sym_val (bfd_vma i, const asection *plt,
2491 const arelent *rel ATTRIBUTE_UNUSED)
2493 return plt->vma + (i + 1) * elf_m68k_get_plt_info (plt->owner)->size;
2496 #define TARGET_BIG_SYM bfd_elf32_m68k_vec
2497 #define TARGET_BIG_NAME "elf32-m68k"
2498 #define ELF_MACHINE_CODE EM_68K
2499 #define ELF_MAXPAGESIZE 0x2000
2500 #define elf_backend_create_dynamic_sections \
2501 _bfd_elf_create_dynamic_sections
2502 #define bfd_elf32_bfd_link_hash_table_create \
2503 elf_m68k_link_hash_table_create
2504 #define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link
2506 #define elf_backend_check_relocs elf_m68k_check_relocs
2507 #define elf_backend_always_size_sections \
2508 elf_m68k_always_size_sections
2509 #define elf_backend_adjust_dynamic_symbol \
2510 elf_m68k_adjust_dynamic_symbol
2511 #define elf_backend_size_dynamic_sections \
2512 elf_m68k_size_dynamic_sections
2513 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
2514 #define elf_backend_relocate_section elf_m68k_relocate_section
2515 #define elf_backend_finish_dynamic_symbol \
2516 elf_m68k_finish_dynamic_symbol
2517 #define elf_backend_finish_dynamic_sections \
2518 elf_m68k_finish_dynamic_sections
2519 #define elf_backend_gc_mark_hook elf_m68k_gc_mark_hook
2520 #define elf_backend_gc_sweep_hook elf_m68k_gc_sweep_hook
2521 #define bfd_elf32_bfd_merge_private_bfd_data \
2522 elf32_m68k_merge_private_bfd_data
2523 #define bfd_elf32_bfd_set_private_flags \
2524 elf32_m68k_set_private_flags
2525 #define bfd_elf32_bfd_print_private_bfd_data \
2526 elf32_m68k_print_private_bfd_data
2527 #define elf_backend_reloc_type_class elf32_m68k_reloc_type_class
2528 #define elf_backend_plt_sym_val elf_m68k_plt_sym_val
2529 #define elf_backend_object_p elf32_m68k_object_p
2531 #define elf_backend_can_gc_sections 1
2532 #define elf_backend_can_refcount 1
2533 #define elf_backend_want_got_plt 1
2534 #define elf_backend_plt_readonly 1
2535 #define elf_backend_want_plt_sym 0
2536 #define elf_backend_got_header_size 12
2537 #define elf_backend_rela_normal 1
2539 #include "elf32-target.h"