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 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 2 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, MA 02110-1301, USA. */
27 #include "opcode/m68k.h"
29 static reloc_howto_type *reloc_type_lookup
30 PARAMS ((bfd *, bfd_reloc_code_real_type));
31 static void rtype_to_howto
32 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
33 static struct bfd_hash_entry *elf_m68k_link_hash_newfunc
34 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
35 static struct bfd_link_hash_table *elf_m68k_link_hash_table_create
37 static bfd_boolean elf_m68k_check_relocs
38 PARAMS ((bfd *, struct bfd_link_info *, asection *,
39 const Elf_Internal_Rela *));
40 static asection *elf_m68k_gc_mark_hook
41 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
42 struct elf_link_hash_entry *, Elf_Internal_Sym *));
43 static bfd_boolean elf_m68k_gc_sweep_hook
44 PARAMS ((bfd *, struct bfd_link_info *, asection *,
45 const Elf_Internal_Rela *));
46 static bfd_boolean elf_m68k_adjust_dynamic_symbol
47 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
48 static bfd_boolean elf_m68k_size_dynamic_sections
49 PARAMS ((bfd *, struct bfd_link_info *));
50 static bfd_boolean elf_m68k_discard_copies
51 PARAMS ((struct elf_link_hash_entry *, PTR));
52 static bfd_boolean elf_m68k_relocate_section
53 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
54 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
55 static bfd_boolean elf_m68k_finish_dynamic_symbol
56 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
58 static bfd_boolean elf_m68k_finish_dynamic_sections
59 PARAMS ((bfd *, struct bfd_link_info *));
61 static bfd_boolean elf32_m68k_set_private_flags
62 PARAMS ((bfd *, flagword));
63 static bfd_boolean elf32_m68k_merge_private_bfd_data
64 PARAMS ((bfd *, bfd *));
65 static bfd_boolean elf32_m68k_print_private_bfd_data
66 PARAMS ((bfd *, PTR));
67 static enum elf_reloc_type_class elf32_m68k_reloc_type_class
68 PARAMS ((const Elf_Internal_Rela *));
70 static reloc_howto_type howto_table[] = {
71 HOWTO(R_68K_NONE, 0, 0, 0, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_NONE", FALSE, 0, 0x00000000,FALSE),
72 HOWTO(R_68K_32, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_32", FALSE, 0, 0xffffffff,FALSE),
73 HOWTO(R_68K_16, 0, 1,16, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_16", FALSE, 0, 0x0000ffff,FALSE),
74 HOWTO(R_68K_8, 0, 0, 8, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_8", FALSE, 0, 0x000000ff,FALSE),
75 HOWTO(R_68K_PC32, 0, 2,32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_PC32", FALSE, 0, 0xffffffff,TRUE),
76 HOWTO(R_68K_PC16, 0, 1,16, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PC16", FALSE, 0, 0x0000ffff,TRUE),
77 HOWTO(R_68K_PC8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PC8", FALSE, 0, 0x000000ff,TRUE),
78 HOWTO(R_68K_GOT32, 0, 2,32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_GOT32", FALSE, 0, 0xffffffff,TRUE),
79 HOWTO(R_68K_GOT16, 0, 1,16, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT16", FALSE, 0, 0x0000ffff,TRUE),
80 HOWTO(R_68K_GOT8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT8", FALSE, 0, 0x000000ff,TRUE),
81 HOWTO(R_68K_GOT32O, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_GOT32O", FALSE, 0, 0xffffffff,FALSE),
82 HOWTO(R_68K_GOT16O, 0, 1,16, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT16O", FALSE, 0, 0x0000ffff,FALSE),
83 HOWTO(R_68K_GOT8O, 0, 0, 8, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT8O", FALSE, 0, 0x000000ff,FALSE),
84 HOWTO(R_68K_PLT32, 0, 2,32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_PLT32", FALSE, 0, 0xffffffff,TRUE),
85 HOWTO(R_68K_PLT16, 0, 1,16, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT16", FALSE, 0, 0x0000ffff,TRUE),
86 HOWTO(R_68K_PLT8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT8", FALSE, 0, 0x000000ff,TRUE),
87 HOWTO(R_68K_PLT32O, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_PLT32O", FALSE, 0, 0xffffffff,FALSE),
88 HOWTO(R_68K_PLT16O, 0, 1,16, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT16O", FALSE, 0, 0x0000ffff,FALSE),
89 HOWTO(R_68K_PLT8O, 0, 0, 8, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT8O", FALSE, 0, 0x000000ff,FALSE),
90 HOWTO(R_68K_COPY, 0, 0, 0, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_COPY", FALSE, 0, 0xffffffff,FALSE),
91 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),
92 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),
93 HOWTO(R_68K_RELATIVE, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_RELATIVE", FALSE, 0, 0xffffffff,FALSE),
94 /* GNU extension to record C++ vtable hierarchy. */
95 HOWTO (R_68K_GNU_VTINHERIT, /* type */
97 2, /* size (0 = byte, 1 = short, 2 = long) */
99 FALSE, /* pc_relative */
101 complain_overflow_dont, /* complain_on_overflow */
102 NULL, /* special_function */
103 "R_68K_GNU_VTINHERIT", /* name */
104 FALSE, /* partial_inplace */
108 /* GNU extension to record C++ vtable member usage. */
109 HOWTO (R_68K_GNU_VTENTRY, /* type */
111 2, /* size (0 = byte, 1 = short, 2 = long) */
113 FALSE, /* pc_relative */
115 complain_overflow_dont, /* complain_on_overflow */
116 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
117 "R_68K_GNU_VTENTRY", /* name */
118 FALSE, /* partial_inplace */
125 rtype_to_howto (abfd, cache_ptr, dst)
126 bfd *abfd ATTRIBUTE_UNUSED;
128 Elf_Internal_Rela *dst;
130 BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_68K_max);
131 cache_ptr->howto = &howto_table[ELF32_R_TYPE(dst->r_info)];
134 #define elf_info_to_howto rtype_to_howto
138 bfd_reloc_code_real_type bfd_val;
141 { BFD_RELOC_NONE, R_68K_NONE },
142 { BFD_RELOC_32, R_68K_32 },
143 { BFD_RELOC_16, R_68K_16 },
144 { BFD_RELOC_8, R_68K_8 },
145 { BFD_RELOC_32_PCREL, R_68K_PC32 },
146 { BFD_RELOC_16_PCREL, R_68K_PC16 },
147 { BFD_RELOC_8_PCREL, R_68K_PC8 },
148 { BFD_RELOC_32_GOT_PCREL, R_68K_GOT32 },
149 { BFD_RELOC_16_GOT_PCREL, R_68K_GOT16 },
150 { BFD_RELOC_8_GOT_PCREL, R_68K_GOT8 },
151 { BFD_RELOC_32_GOTOFF, R_68K_GOT32O },
152 { BFD_RELOC_16_GOTOFF, R_68K_GOT16O },
153 { BFD_RELOC_8_GOTOFF, R_68K_GOT8O },
154 { BFD_RELOC_32_PLT_PCREL, R_68K_PLT32 },
155 { BFD_RELOC_16_PLT_PCREL, R_68K_PLT16 },
156 { BFD_RELOC_8_PLT_PCREL, R_68K_PLT8 },
157 { BFD_RELOC_32_PLTOFF, R_68K_PLT32O },
158 { BFD_RELOC_16_PLTOFF, R_68K_PLT16O },
159 { BFD_RELOC_8_PLTOFF, R_68K_PLT8O },
160 { BFD_RELOC_NONE, R_68K_COPY },
161 { BFD_RELOC_68K_GLOB_DAT, R_68K_GLOB_DAT },
162 { BFD_RELOC_68K_JMP_SLOT, R_68K_JMP_SLOT },
163 { BFD_RELOC_68K_RELATIVE, R_68K_RELATIVE },
164 { BFD_RELOC_CTOR, R_68K_32 },
165 { BFD_RELOC_VTABLE_INHERIT, R_68K_GNU_VTINHERIT },
166 { BFD_RELOC_VTABLE_ENTRY, R_68K_GNU_VTENTRY },
169 static reloc_howto_type *
170 reloc_type_lookup (abfd, code)
171 bfd *abfd ATTRIBUTE_UNUSED;
172 bfd_reloc_code_real_type code;
175 for (i = 0; i < sizeof (reloc_map) / sizeof (reloc_map[0]); i++)
177 if (reloc_map[i].bfd_val == code)
178 return &howto_table[reloc_map[i].elf_val];
183 #define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup
184 #define ELF_ARCH bfd_arch_m68k
186 /* Functions for the m68k ELF linker. */
188 /* The name of the dynamic interpreter. This is put in the .interp
191 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
193 /* The size in bytes of an entry in the procedure linkage table. */
195 #define PLT_ENTRY_SIZE 20
197 /* The first entry in a procedure linkage table looks like this. See
198 the SVR4 ABI m68k supplement to see how this works. */
200 static const bfd_byte elf_m68k_plt0_entry[PLT_ENTRY_SIZE] =
202 0x2f, 0x3b, 0x01, 0x70, /* move.l (%pc,addr),-(%sp) */
203 0, 0, 0, 0, /* replaced with offset to .got + 4. */
204 0x4e, 0xfb, 0x01, 0x71, /* jmp ([%pc,addr]) */
205 0, 0, 0, 0, /* replaced with offset to .got + 8. */
206 0, 0, 0, 0 /* pad out to 20 bytes. */
209 /* Subsequent entries in a procedure linkage table look like this. */
211 static const bfd_byte elf_m68k_plt_entry[PLT_ENTRY_SIZE] =
213 0x4e, 0xfb, 0x01, 0x71, /* jmp ([%pc,symbol@GOTPC]) */
214 0, 0, 0, 0, /* replaced with offset to symbol's .got entry. */
215 0x2f, 0x3c, /* move.l #offset,-(%sp) */
216 0, 0, 0, 0, /* replaced with offset into relocation table. */
217 0x60, 0xff, /* bra.l .plt */
218 0, 0, 0, 0 /* replaced with offset to start of .plt. */
222 #define CFV4E_PLT_ENTRY_SIZE 24
224 #define CFV4E_FLAG(abfd) (elf_elfheader (abfd)->e_flags & EF_M68K_CFV4E)
226 static const bfd_byte elf_cfv4e_plt0_entry[CFV4E_PLT_ENTRY_SIZE] =
229 0, 0, 0, 0, /* Replaced with offset to .got + 4. */
230 0x2f, 0x3b, 0x08, 0xfa, /* move.l (%pc,addr),-(%sp) */
232 0, 0, 0, 0, /* Replaced with offset to .got + 8. */
233 0x20, 0x7b, 0x08, 0x00, /* move.l (%pc,%d0:l), %a0 */
234 0x4e, 0xd0, /* jmp (%a0) */
238 /* Subsequent entries in a procedure linkage table look like this. */
240 static const bfd_byte elf_cfv4e_plt_entry[CFV4E_PLT_ENTRY_SIZE] =
243 0, 0, 0, 0, /* Replaced with offset to symbol's .got entry. */
244 0x20, 0x7b, 0x08, 0x00, /* move.l (%pc,%d0:l), %a0 */
245 0x4e, 0xd0, /* jmp (%a0) */
246 0x2f, 0x3c, /* move.l #offset,-(%sp) */
247 0, 0, 0, 0, /* Replaced with offset into relocation table. */
248 0x60, 0xff, /* bra.l .plt */
249 0, 0, 0, 0 /* Replaced with offset to start of .plt. */
252 #define CPU32_FLAG(abfd) (elf_elfheader (abfd)->e_flags & EF_M68K_CPU32)
254 #define PLT_CPU32_ENTRY_SIZE 24
255 /* Procedure linkage table entries for the cpu32 */
256 static const bfd_byte elf_cpu32_plt0_entry[PLT_CPU32_ENTRY_SIZE] =
258 0x2f, 0x3b, 0x01, 0x70, /* move.l (%pc,addr),-(%sp) */
259 0, 0, 0, 0, /* replaced with offset to .got + 4. */
260 0x22, 0x7b, 0x01, 0x70, /* moveal %pc@(0xc), %a1 */
261 0, 0, 0, 0, /* replace with offset to .got +8. */
262 0x4e, 0xd1, /* jmp %a1@ */
263 0, 0, 0, 0, /* pad out to 24 bytes. */
267 static const bfd_byte elf_cpu32_plt_entry[PLT_CPU32_ENTRY_SIZE] =
269 0x22, 0x7b, 0x01, 0x70, /* moveal %pc@(0xc), %a1 */
270 0, 0, 0, 0, /* replaced with offset to symbol's .got entry. */
271 0x4e, 0xd1, /* jmp %a1@ */
272 0x2f, 0x3c, /* move.l #offset,-(%sp) */
273 0, 0, 0, 0, /* replaced with offset into relocation table. */
274 0x60, 0xff, /* bra.l .plt */
275 0, 0, 0, 0, /* replaced with offset to start of .plt. */
279 /* The m68k linker needs to keep track of the number of relocs that it
280 decides to copy in check_relocs for each symbol. This is so that it
281 can discard PC relative relocs if it doesn't need them when linking
282 with -Bsymbolic. We store the information in a field extending the
283 regular ELF linker hash table. */
285 /* This structure keeps track of the number of PC relative relocs we have
286 copied for a given symbol. */
288 struct elf_m68k_pcrel_relocs_copied
291 struct elf_m68k_pcrel_relocs_copied *next;
292 /* A section in dynobj. */
294 /* Number of relocs copied in this section. */
298 /* m68k ELF linker hash entry. */
300 struct elf_m68k_link_hash_entry
302 struct elf_link_hash_entry root;
304 /* Number of PC relative relocs copied for this symbol. */
305 struct elf_m68k_pcrel_relocs_copied *pcrel_relocs_copied;
308 #define elf_m68k_hash_entry(ent) ((struct elf_m68k_link_hash_entry *) (ent))
310 /* m68k ELF linker hash table. */
312 struct elf_m68k_link_hash_table
314 struct elf_link_hash_table root;
316 /* Small local sym to section mapping cache. */
317 struct sym_sec_cache sym_sec;
320 /* Get the m68k ELF linker hash table from a link_info structure. */
322 #define elf_m68k_hash_table(p) \
323 ((struct elf_m68k_link_hash_table *) (p)->hash)
325 /* Create an entry in an m68k ELF linker hash table. */
327 static struct bfd_hash_entry *
328 elf_m68k_link_hash_newfunc (entry, table, string)
329 struct bfd_hash_entry *entry;
330 struct bfd_hash_table *table;
333 struct bfd_hash_entry *ret = entry;
335 /* Allocate the structure if it has not already been allocated by a
338 ret = bfd_hash_allocate (table,
339 sizeof (struct elf_m68k_link_hash_entry));
343 /* Call the allocation method of the superclass. */
344 ret = _bfd_elf_link_hash_newfunc (ret, table, string);
346 elf_m68k_hash_entry (ret)->pcrel_relocs_copied = NULL;
351 /* Create an m68k ELF linker hash table. */
353 static struct bfd_link_hash_table *
354 elf_m68k_link_hash_table_create (abfd)
357 struct elf_m68k_link_hash_table *ret;
358 bfd_size_type amt = sizeof (struct elf_m68k_link_hash_table);
360 ret = (struct elf_m68k_link_hash_table *) bfd_malloc (amt);
361 if (ret == (struct elf_m68k_link_hash_table *) NULL)
364 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
365 elf_m68k_link_hash_newfunc))
371 ret->sym_sec.abfd = NULL;
373 return &ret->root.root;
376 /* Set the right machine number. */
379 elf32_m68k_object_p (bfd *abfd)
381 unsigned int mach = 0;
382 unsigned features = 0;
383 flagword eflags = elf_elfheader (abfd)->e_flags;
385 if (eflags & EF_M68K_M68000)
387 else if (eflags & EF_M68K_CPU32)
389 else if (eflags & EF_M68K_ISA_MASK)
391 switch (eflags & EF_M68K_ISA_MASK)
394 features |= mcfisa_b;
396 case EF_M68K_ISA_A_PLUS:
397 features |= mcfisa_aa;
400 features |= mcfisa_a;
403 if (eflags & EF_M68K_HW_DIV)
404 features |= mcfhwdiv;
405 switch (eflags & EF_M68K_MAC_MASK)
414 if (eflags & EF_M68K_USP)
416 if (eflags & EF_M68K_FLOAT)
420 mach = bfd_m68k_features_to_mach (features);
421 bfd_default_set_arch_mach (abfd, bfd_arch_m68k, mach);
426 /* Keep m68k-specific flags in the ELF header. */
428 elf32_m68k_set_private_flags (abfd, flags)
432 elf_elfheader (abfd)->e_flags = flags;
433 elf_flags_init (abfd) = TRUE;
437 /* Merge backend specific data from an object file to the output
438 object file when linking. */
440 elf32_m68k_merge_private_bfd_data (ibfd, obfd)
446 unsigned in_mach, out_mach;
448 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
449 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
452 in_mach = bfd_get_mach (ibfd);
453 out_mach = bfd_get_mach (obfd);
454 if (!out_mach || !in_mach)
455 /* One is unknown, copy the input machine. */
457 else if (in_mach != out_mach)
459 if (in_mach <= bfd_mach_m68060 && out_mach <= bfd_mach_m68060)
461 /* Merge m68k machine. */
462 if (in_mach > out_mach)
465 else if (in_mach >= bfd_mach_mcf_isa_a && out_mach >= bfd_mach_mcf_isa_a)
466 /* Merge cf machine. */
467 out_mach = bfd_m68k_features_to_mach
468 (bfd_m68k_mach_to_features (in_mach)
469 | bfd_m68k_mach_to_features (out_mach));
471 /* They are incompatible. */
474 bfd_set_arch_mach (obfd, bfd_arch_m68k, out_mach);
476 in_flags = elf_elfheader (ibfd)->e_flags;
477 out_flags = elf_elfheader (obfd)->e_flags;
479 if (!elf_flags_init (obfd))
481 elf_flags_init (obfd) = TRUE;
482 out_flags = in_flags;
486 /* Copy legacy flags. */
487 out_flags |= in_flags & (EF_M68K_CPU32 | EF_M68K_M68000 | EF_M68K_CFV4E);
489 if (((in_flags | out_flags) & EF_M68K_ISA_MASK)
490 && ((in_flags | out_flags) & (EF_M68K_CPU32 | EF_M68K_M68000)))
491 /* Mixing m68k and cf is not allowed */
494 if (in_flags & EF_M68K_ISA_MASK)
496 if (out_flags & EF_M68K_ISA_MASK)
498 /* Merge cf specific flags */
499 if ((in_flags & EF_M68K_ISA_MASK)
500 > (out_flags & EF_M68K_ISA_MASK))
502 out_flags ^= out_flags & EF_M68K_ISA_MASK;
503 out_flags |= in_flags & EF_M68K_ISA_MASK;
505 out_flags |= in_flags
506 & (EF_M68K_HW_DIV | EF_M68K_USP | EF_M68K_FLOAT);
507 if (in_flags & EF_M68K_MAC_MASK)
509 if (!(out_flags & EF_M68K_MAC_MASK))
510 out_flags |= in_flags & EF_M68K_MAC_MASK;
511 else if ((out_flags & EF_M68K_MAC_MASK)
512 != (in_flags & EF_M68K_MAC_MASK))
513 /* Cannot mix MACs */
519 /* Copy the coldfire bits. */
520 out_flags &= ~EF_M68K_CF_MASK;
521 out_flags |= in_flags & EF_M68K_CF_MASK;
525 elf_elfheader (obfd)->e_flags = out_flags;
530 /* Display the flags field. */
532 elf32_m68k_print_private_bfd_data (abfd, ptr)
536 FILE *file = (FILE *) ptr;
537 flagword eflags = elf_elfheader (abfd)->e_flags;
539 BFD_ASSERT (abfd != NULL && ptr != NULL);
541 /* Print normal ELF private data. */
542 _bfd_elf_print_private_bfd_data (abfd, ptr);
544 /* Ignore init flag - it may not be set, despite the flags field containing valid data. */
546 /* xgettext:c-format */
547 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
549 if (eflags & EF_M68K_CPU32)
550 fprintf (file, " [cpu32]");
552 if (eflags & EF_M68K_M68000)
553 fprintf (file, " [m68000]");
555 if (eflags & EF_M68K_CFV4E)
556 fprintf (file, " [cfv4e]");
558 if (eflags & EF_M68K_ISA_MASK)
560 char const *isa = _("unknown");
561 char const *mac = _("unknown");
563 switch (eflags & EF_M68K_ISA_MASK)
568 case EF_M68K_ISA_A_PLUS:
575 fprintf (file, " [isa %s]", isa);
576 if (eflags & EF_M68K_HW_DIV)
577 fprintf (file, " [hwdiv]");
578 switch (eflags & EF_M68K_MAC_MASK)
591 fprintf (file, " [%s]", mac);
592 if (eflags & EF_M68K_USP)
593 fprintf (file, " [usp");
594 if (eflags & EF_M68K_FLOAT)
595 fprintf (file, " [float]");
602 /* Look through the relocs for a section during the first phase, and
603 allocate space in the global offset table or procedure linkage
607 elf_m68k_check_relocs (abfd, info, sec, relocs)
609 struct bfd_link_info *info;
611 const Elf_Internal_Rela *relocs;
614 Elf_Internal_Shdr *symtab_hdr;
615 struct elf_link_hash_entry **sym_hashes;
616 bfd_signed_vma *local_got_refcounts;
617 const Elf_Internal_Rela *rel;
618 const Elf_Internal_Rela *rel_end;
623 if (info->relocatable)
626 dynobj = elf_hash_table (info)->dynobj;
627 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
628 sym_hashes = elf_sym_hashes (abfd);
629 local_got_refcounts = elf_local_got_refcounts (abfd);
635 rel_end = relocs + sec->reloc_count;
636 for (rel = relocs; rel < rel_end; rel++)
638 unsigned long r_symndx;
639 struct elf_link_hash_entry *h;
641 r_symndx = ELF32_R_SYM (rel->r_info);
643 if (r_symndx < symtab_hdr->sh_info)
647 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
648 while (h->root.type == bfd_link_hash_indirect
649 || h->root.type == bfd_link_hash_warning)
650 h = (struct elf_link_hash_entry *) h->root.u.i.link;
653 switch (ELF32_R_TYPE (rel->r_info))
659 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
665 /* This symbol requires a global offset table entry. */
669 /* Create the .got section. */
670 elf_hash_table (info)->dynobj = dynobj = abfd;
671 if (!_bfd_elf_create_got_section (dynobj, info))
677 sgot = bfd_get_section_by_name (dynobj, ".got");
678 BFD_ASSERT (sgot != NULL);
682 && (h != NULL || info->shared))
684 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
687 srelgot = bfd_make_section_with_flags (dynobj,
696 || !bfd_set_section_alignment (dynobj, srelgot, 2))
703 if (h->got.refcount == 0)
705 /* Make sure this symbol is output as a dynamic symbol. */
709 if (!bfd_elf_link_record_dynamic_symbol (info, h))
713 /* Allocate space in the .got section. */
715 /* Allocate relocation space. */
716 srelgot->size += sizeof (Elf32_External_Rela);
722 /* This is a global offset table entry for a local symbol. */
723 if (local_got_refcounts == NULL)
727 size = symtab_hdr->sh_info;
728 size *= sizeof (bfd_signed_vma);
729 local_got_refcounts = ((bfd_signed_vma *)
730 bfd_zalloc (abfd, size));
731 if (local_got_refcounts == NULL)
733 elf_local_got_refcounts (abfd) = local_got_refcounts;
735 if (local_got_refcounts[r_symndx] == 0)
740 /* If we are generating a shared object, we need to
741 output a R_68K_RELATIVE reloc so that the dynamic
742 linker can adjust this GOT entry. */
743 srelgot->size += sizeof (Elf32_External_Rela);
746 local_got_refcounts[r_symndx]++;
753 /* This symbol requires a procedure linkage table entry. We
754 actually build the entry in adjust_dynamic_symbol,
755 because this might be a case of linking PIC code which is
756 never referenced by a dynamic object, in which case we
757 don't need to generate a procedure linkage table entry
760 /* If this is a local symbol, we resolve it directly without
761 creating a procedure linkage table entry. */
772 /* This symbol requires a procedure linkage table entry. */
776 /* It does not make sense to have this relocation for a
777 local symbol. FIXME: does it? How to handle it if
778 it does make sense? */
779 bfd_set_error (bfd_error_bad_value);
783 /* Make sure this symbol is output as a dynamic symbol. */
787 if (!bfd_elf_link_record_dynamic_symbol (info, h))
798 /* If we are creating a shared library and this is not a local
799 symbol, we need to copy the reloc into the shared library.
800 However when linking with -Bsymbolic and this is a global
801 symbol which is defined in an object we are including in the
802 link (i.e., DEF_REGULAR is set), then we can resolve the
803 reloc directly. At this point we have not seen all the input
804 files, so it is possible that DEF_REGULAR is not set now but
805 will be set later (it is never cleared). We account for that
806 possibility below by storing information in the
807 pcrel_relocs_copied field of the hash table entry. */
809 && (sec->flags & SEC_ALLOC) != 0
812 || h->root.type == bfd_link_hash_defweak
813 || !h->def_regular)))
817 /* Make sure a plt entry is created for this symbol if
818 it turns out to be a function defined by a dynamic
830 /* Make sure a plt entry is created for this symbol if it
831 turns out to be a function defined by a dynamic object. */
835 /* If we are creating a shared library, we need to copy the
836 reloc into the shared library. */
838 && (sec->flags & SEC_ALLOC) != 0)
840 /* When creating a shared object, we must copy these
841 reloc types into the output file. We create a reloc
842 section in dynobj and make room for this reloc. */
847 name = (bfd_elf_string_from_elf_section
849 elf_elfheader (abfd)->e_shstrndx,
850 elf_section_data (sec)->rel_hdr.sh_name));
854 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
855 && strcmp (bfd_get_section_name (abfd, sec),
858 sreloc = bfd_get_section_by_name (dynobj, name);
861 sreloc = bfd_make_section_with_flags (dynobj,
870 || !bfd_set_section_alignment (dynobj, sreloc, 2))
873 elf_section_data (sec)->sreloc = sreloc;
876 if (sec->flags & SEC_READONLY
877 /* Don't set DF_TEXTREL yet for PC relative
878 relocations, they might be discarded later. */
879 && !(ELF32_R_TYPE (rel->r_info) == R_68K_PC8
880 || ELF32_R_TYPE (rel->r_info) == R_68K_PC16
881 || ELF32_R_TYPE (rel->r_info) == R_68K_PC32))
882 info->flags |= DF_TEXTREL;
884 sreloc->size += sizeof (Elf32_External_Rela);
886 /* We count the number of PC relative relocations we have
887 entered for this symbol, so that we can discard them
888 again if, in the -Bsymbolic case, the symbol is later
889 defined by a regular object, or, in the normal shared
890 case, the symbol is forced to be local. Note that this
891 function is only called if we are using an m68kelf linker
892 hash table, which means that h is really a pointer to an
893 elf_m68k_link_hash_entry. */
894 if (ELF32_R_TYPE (rel->r_info) == R_68K_PC8
895 || ELF32_R_TYPE (rel->r_info) == R_68K_PC16
896 || ELF32_R_TYPE (rel->r_info) == R_68K_PC32)
898 struct elf_m68k_pcrel_relocs_copied *p;
899 struct elf_m68k_pcrel_relocs_copied **head;
903 struct elf_m68k_link_hash_entry *eh
904 = elf_m68k_hash_entry (h);
905 head = &eh->pcrel_relocs_copied;
912 s = (bfd_section_from_r_symndx
913 (abfd, &elf_m68k_hash_table (info)->sym_sec,
918 vpp = &elf_section_data (s)->local_dynrel;
919 head = (struct elf_m68k_pcrel_relocs_copied **) vpp;
922 for (p = *head; p != NULL; p = p->next)
923 if (p->section == sreloc)
928 p = ((struct elf_m68k_pcrel_relocs_copied *)
929 bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
944 /* This relocation describes the C++ object vtable hierarchy.
945 Reconstruct it for later use during GC. */
946 case R_68K_GNU_VTINHERIT:
947 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
951 /* This relocation describes which C++ vtable entries are actually
952 used. Record for later use during GC. */
953 case R_68K_GNU_VTENTRY:
954 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
966 /* Return the section that should be marked against GC for a given
970 elf_m68k_gc_mark_hook (sec, info, rel, h, sym)
972 struct bfd_link_info *info ATTRIBUTE_UNUSED;
973 Elf_Internal_Rela *rel;
974 struct elf_link_hash_entry *h;
975 Elf_Internal_Sym *sym;
979 switch (ELF32_R_TYPE (rel->r_info))
981 case R_68K_GNU_VTINHERIT:
982 case R_68K_GNU_VTENTRY:
986 switch (h->root.type)
991 case bfd_link_hash_defined:
992 case bfd_link_hash_defweak:
993 return h->root.u.def.section;
995 case bfd_link_hash_common:
996 return h->root.u.c.p->section;
1001 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
1006 /* Update the got entry reference counts for the section being removed. */
1009 elf_m68k_gc_sweep_hook (abfd, info, sec, relocs)
1011 struct bfd_link_info *info;
1013 const Elf_Internal_Rela *relocs;
1015 Elf_Internal_Shdr *symtab_hdr;
1016 struct elf_link_hash_entry **sym_hashes;
1017 bfd_signed_vma *local_got_refcounts;
1018 const Elf_Internal_Rela *rel, *relend;
1023 dynobj = elf_hash_table (info)->dynobj;
1027 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1028 sym_hashes = elf_sym_hashes (abfd);
1029 local_got_refcounts = elf_local_got_refcounts (abfd);
1031 sgot = bfd_get_section_by_name (dynobj, ".got");
1032 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1034 relend = relocs + sec->reloc_count;
1035 for (rel = relocs; rel < relend; rel++)
1037 unsigned long r_symndx;
1038 struct elf_link_hash_entry *h = NULL;
1040 r_symndx = ELF32_R_SYM (rel->r_info);
1041 if (r_symndx >= symtab_hdr->sh_info)
1043 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1044 while (h->root.type == bfd_link_hash_indirect
1045 || h->root.type == bfd_link_hash_warning)
1046 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1049 switch (ELF32_R_TYPE (rel->r_info))
1059 if (h->got.refcount > 0)
1062 if (h->got.refcount == 0)
1064 /* We don't need the .got entry any more. */
1066 srelgot->size -= sizeof (Elf32_External_Rela);
1070 else if (local_got_refcounts != NULL)
1072 if (local_got_refcounts[r_symndx] > 0)
1074 --local_got_refcounts[r_symndx];
1075 if (local_got_refcounts[r_symndx] == 0)
1077 /* We don't need the .got entry any more. */
1080 srelgot->size -= sizeof (Elf32_External_Rela);
1100 if (h->plt.refcount > 0)
1113 /* Adjust a symbol defined by a dynamic object and referenced by a
1114 regular object. The current definition is in some section of the
1115 dynamic object, but we're not including those sections. We have to
1116 change the definition to something the rest of the link can
1120 elf_m68k_adjust_dynamic_symbol (info, h)
1121 struct bfd_link_info *info;
1122 struct elf_link_hash_entry *h;
1126 unsigned int power_of_two;
1128 dynobj = elf_hash_table (info)->dynobj;
1130 /* Make sure we know what is going on here. */
1131 BFD_ASSERT (dynobj != NULL
1133 || h->u.weakdef != NULL
1136 && !h->def_regular)));
1138 /* If this is a function, put it in the procedure linkage table. We
1139 will fill in the contents of the procedure linkage table later,
1140 when we know the address of the .got section. */
1141 if (h->type == STT_FUNC
1144 if ((h->plt.refcount <= 0
1145 || SYMBOL_CALLS_LOCAL (info, h)
1146 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1147 && h->root.type == bfd_link_hash_undefweak))
1148 /* We must always create the plt entry if it was referenced
1149 by a PLTxxO relocation. In this case we already recorded
1150 it as a dynamic symbol. */
1151 && h->dynindx == -1)
1153 /* This case can occur if we saw a PLTxx reloc in an input
1154 file, but the symbol was never referred to by a dynamic
1155 object, or if all references were garbage collected. In
1156 such a case, we don't actually need to build a procedure
1157 linkage table, and we can just do a PCxx reloc instead. */
1158 h->plt.offset = (bfd_vma) -1;
1163 /* Make sure this symbol is output as a dynamic symbol. */
1164 if (h->dynindx == -1
1165 && !h->forced_local)
1167 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1171 s = bfd_get_section_by_name (dynobj, ".plt");
1172 BFD_ASSERT (s != NULL);
1174 /* If this is the first .plt entry, make room for the special
1178 if (CPU32_FLAG (dynobj))
1179 s->size += PLT_CPU32_ENTRY_SIZE;
1180 else if (CFV4E_FLAG (dynobj))
1181 s->size += CFV4E_PLT_ENTRY_SIZE;
1183 s->size += PLT_ENTRY_SIZE;
1186 /* If this symbol is not defined in a regular file, and we are
1187 not generating a shared library, then set the symbol to this
1188 location in the .plt. This is required to make function
1189 pointers compare as equal between the normal executable and
1190 the shared library. */
1194 h->root.u.def.section = s;
1195 h->root.u.def.value = s->size;
1198 h->plt.offset = s->size;
1200 /* Make room for this entry. */
1201 if (CPU32_FLAG (dynobj))
1202 s->size += PLT_CPU32_ENTRY_SIZE;
1203 else if (CFV4E_FLAG (dynobj))
1204 s->size += CFV4E_PLT_ENTRY_SIZE;
1206 s->size += PLT_ENTRY_SIZE;
1208 /* We also need to make an entry in the .got.plt section, which
1209 will be placed in the .got section by the linker script. */
1210 s = bfd_get_section_by_name (dynobj, ".got.plt");
1211 BFD_ASSERT (s != NULL);
1214 /* We also need to make an entry in the .rela.plt section. */
1215 s = bfd_get_section_by_name (dynobj, ".rela.plt");
1216 BFD_ASSERT (s != NULL);
1217 s->size += sizeof (Elf32_External_Rela);
1222 /* Reinitialize the plt offset now that it is not used as a reference
1224 h->plt.offset = (bfd_vma) -1;
1226 /* If this is a weak symbol, and there is a real definition, the
1227 processor independent code will have arranged for us to see the
1228 real definition first, and we can just use the same value. */
1229 if (h->u.weakdef != NULL)
1231 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1232 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1233 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1234 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1238 /* This is a reference to a symbol defined by a dynamic object which
1239 is not a function. */
1241 /* If we are creating a shared library, we must presume that the
1242 only references to the symbol are via the global offset table.
1243 For such cases we need not do anything here; the relocations will
1244 be handled correctly by relocate_section. */
1250 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1251 h->root.root.string);
1255 /* We must allocate the symbol in our .dynbss section, which will
1256 become part of the .bss section of the executable. There will be
1257 an entry for this symbol in the .dynsym section. The dynamic
1258 object will contain position independent code, so all references
1259 from the dynamic object to this symbol will go through the global
1260 offset table. The dynamic linker will use the .dynsym entry to
1261 determine the address it must put in the global offset table, so
1262 both the dynamic object and the regular object will refer to the
1263 same memory location for the variable. */
1265 s = bfd_get_section_by_name (dynobj, ".dynbss");
1266 BFD_ASSERT (s != NULL);
1268 /* We must generate a R_68K_COPY reloc to tell the dynamic linker to
1269 copy the initial value out of the dynamic object and into the
1270 runtime process image. We need to remember the offset into the
1271 .rela.bss section we are going to use. */
1272 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1276 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
1277 BFD_ASSERT (srel != NULL);
1278 srel->size += sizeof (Elf32_External_Rela);
1282 /* We need to figure out the alignment required for this symbol. I
1283 have no idea how ELF linkers handle this. */
1284 power_of_two = bfd_log2 (h->size);
1285 if (power_of_two > 3)
1288 /* Apply the required alignment. */
1289 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
1290 if (power_of_two > bfd_get_section_alignment (dynobj, s))
1292 if (!bfd_set_section_alignment (dynobj, s, power_of_two))
1296 /* Define the symbol as being at this point in the section. */
1297 h->root.u.def.section = s;
1298 h->root.u.def.value = s->size;
1300 /* Increment the section size to make room for the symbol. */
1306 /* Set the sizes of the dynamic sections. */
1309 elf_m68k_size_dynamic_sections (output_bfd, info)
1310 bfd *output_bfd ATTRIBUTE_UNUSED;
1311 struct bfd_link_info *info;
1318 dynobj = elf_hash_table (info)->dynobj;
1319 BFD_ASSERT (dynobj != NULL);
1321 if (elf_hash_table (info)->dynamic_sections_created)
1323 /* Set the contents of the .interp section to the interpreter. */
1324 if (info->executable)
1326 s = bfd_get_section_by_name (dynobj, ".interp");
1327 BFD_ASSERT (s != NULL);
1328 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
1329 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1334 /* We may have created entries in the .rela.got section.
1335 However, if we are not creating the dynamic sections, we will
1336 not actually use these entries. Reset the size of .rela.got,
1337 which will cause it to get stripped from the output file
1339 s = bfd_get_section_by_name (dynobj, ".rela.got");
1344 /* If this is a -Bsymbolic shared link, then we need to discard all
1345 PC relative relocs against symbols defined in a regular object.
1346 For the normal shared case we discard the PC relative relocs
1347 against symbols that have become local due to visibility changes.
1348 We allocated space for them in the check_relocs routine, but we
1349 will not fill them in in the relocate_section routine. */
1351 elf_link_hash_traverse (elf_hash_table (info),
1352 elf_m68k_discard_copies,
1355 /* The check_relocs and adjust_dynamic_symbol entry points have
1356 determined the sizes of the various dynamic sections. Allocate
1360 for (s = dynobj->sections; s != NULL; s = s->next)
1364 if ((s->flags & SEC_LINKER_CREATED) == 0)
1367 /* It's OK to base decisions on the section name, because none
1368 of the dynobj section names depend upon the input files. */
1369 name = bfd_get_section_name (dynobj, s);
1371 if (strcmp (name, ".plt") == 0)
1373 /* Remember whether there is a PLT. */
1376 else if (strncmp (name, ".rela", 5) == 0)
1382 /* We use the reloc_count field as a counter if we need
1383 to copy relocs into the output file. */
1387 else if (strncmp (name, ".got", 4) != 0
1388 && strcmp (name, ".dynbss") != 0)
1390 /* It's not one of our sections, so don't allocate space. */
1396 /* If we don't need this section, strip it from the
1397 output file. This is mostly to handle .rela.bss and
1398 .rela.plt. We must create both sections in
1399 create_dynamic_sections, because they must be created
1400 before the linker maps input sections to output
1401 sections. The linker does that before
1402 adjust_dynamic_symbol is called, and it is that
1403 function which decides whether anything needs to go
1404 into these sections. */
1405 s->flags |= SEC_EXCLUDE;
1409 if ((s->flags & SEC_HAS_CONTENTS) == 0)
1412 /* Allocate memory for the section contents. */
1413 /* FIXME: This should be a call to bfd_alloc not bfd_zalloc.
1414 Unused entries should be reclaimed before the section's contents
1415 are written out, but at the moment this does not happen. Thus in
1416 order to prevent writing out garbage, we initialise the section's
1417 contents to zero. */
1418 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
1419 if (s->contents == NULL)
1423 if (elf_hash_table (info)->dynamic_sections_created)
1425 /* Add some entries to the .dynamic section. We fill in the
1426 values later, in elf_m68k_finish_dynamic_sections, but we
1427 must add the entries now so that we get the correct size for
1428 the .dynamic section. The DT_DEBUG entry is filled in by the
1429 dynamic linker and used by the debugger. */
1430 #define add_dynamic_entry(TAG, VAL) \
1431 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
1435 if (!add_dynamic_entry (DT_DEBUG, 0))
1441 if (!add_dynamic_entry (DT_PLTGOT, 0)
1442 || !add_dynamic_entry (DT_PLTRELSZ, 0)
1443 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
1444 || !add_dynamic_entry (DT_JMPREL, 0))
1450 if (!add_dynamic_entry (DT_RELA, 0)
1451 || !add_dynamic_entry (DT_RELASZ, 0)
1452 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
1456 if ((info->flags & DF_TEXTREL) != 0)
1458 if (!add_dynamic_entry (DT_TEXTREL, 0))
1462 #undef add_dynamic_entry
1467 /* This function is called via elf_link_hash_traverse if we are
1468 creating a shared object. In the -Bsymbolic case it discards the
1469 space allocated to copy PC relative relocs against symbols which
1470 are defined in regular objects. For the normal shared case, it
1471 discards space for pc-relative relocs that have become local due to
1472 symbol visibility changes. We allocated space for them in the
1473 check_relocs routine, but we won't fill them in in the
1474 relocate_section routine.
1476 We also check whether any of the remaining relocations apply
1477 against a readonly section, and set the DF_TEXTREL flag in this
1481 elf_m68k_discard_copies (h, inf)
1482 struct elf_link_hash_entry *h;
1485 struct bfd_link_info *info = (struct bfd_link_info *) inf;
1486 struct elf_m68k_pcrel_relocs_copied *s;
1488 if (h->root.type == bfd_link_hash_warning)
1489 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1493 && !h->forced_local))
1495 if ((info->flags & DF_TEXTREL) == 0)
1497 /* Look for relocations against read-only sections. */
1498 for (s = elf_m68k_hash_entry (h)->pcrel_relocs_copied;
1501 if ((s->section->flags & SEC_READONLY) != 0)
1503 info->flags |= DF_TEXTREL;
1511 for (s = elf_m68k_hash_entry (h)->pcrel_relocs_copied;
1514 s->section->size -= s->count * sizeof (Elf32_External_Rela);
1519 /* Relocate an M68K ELF section. */
1522 elf_m68k_relocate_section (output_bfd, info, input_bfd, input_section,
1523 contents, relocs, local_syms, local_sections)
1525 struct bfd_link_info *info;
1527 asection *input_section;
1529 Elf_Internal_Rela *relocs;
1530 Elf_Internal_Sym *local_syms;
1531 asection **local_sections;
1534 Elf_Internal_Shdr *symtab_hdr;
1535 struct elf_link_hash_entry **sym_hashes;
1536 bfd_vma *local_got_offsets;
1540 Elf_Internal_Rela *rel;
1541 Elf_Internal_Rela *relend;
1543 if (info->relocatable)
1546 dynobj = elf_hash_table (info)->dynobj;
1547 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1548 sym_hashes = elf_sym_hashes (input_bfd);
1549 local_got_offsets = elf_local_got_offsets (input_bfd);
1556 relend = relocs + input_section->reloc_count;
1557 for (; rel < relend; rel++)
1560 reloc_howto_type *howto;
1561 unsigned long r_symndx;
1562 struct elf_link_hash_entry *h;
1563 Elf_Internal_Sym *sym;
1566 bfd_boolean unresolved_reloc;
1567 bfd_reloc_status_type r;
1569 r_type = ELF32_R_TYPE (rel->r_info);
1570 if (r_type < 0 || r_type >= (int) R_68K_max)
1572 bfd_set_error (bfd_error_bad_value);
1575 howto = howto_table + r_type;
1577 r_symndx = ELF32_R_SYM (rel->r_info);
1582 unresolved_reloc = FALSE;
1584 if (r_symndx < symtab_hdr->sh_info)
1586 sym = local_syms + r_symndx;
1587 sec = local_sections[r_symndx];
1588 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1594 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1595 r_symndx, symtab_hdr, sym_hashes,
1597 unresolved_reloc, warned);
1605 /* Relocation is to the address of the entry for this symbol
1606 in the global offset table. */
1608 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1614 /* Relocation is the offset of the entry for this symbol in
1615 the global offset table. */
1622 sgot = bfd_get_section_by_name (dynobj, ".got");
1623 BFD_ASSERT (sgot != NULL);
1630 off = h->got.offset;
1631 BFD_ASSERT (off != (bfd_vma) -1);
1633 dyn = elf_hash_table (info)->dynamic_sections_created;
1634 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
1641 /* This is actually a static link, or it is a
1642 -Bsymbolic link and the symbol is defined
1643 locally, or the symbol was forced to be local
1644 because of a version file.. We must initialize
1645 this entry in the global offset table. Since
1646 the offset must always be a multiple of 4, we
1647 use the least significant bit to record whether
1648 we have initialized it already.
1650 When doing a dynamic link, we create a .rela.got
1651 relocation entry to initialize the value. This
1652 is done in the finish_dynamic_symbol routine. */
1657 bfd_put_32 (output_bfd, relocation,
1658 sgot->contents + off);
1663 unresolved_reloc = FALSE;
1667 BFD_ASSERT (local_got_offsets != NULL
1668 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1670 off = local_got_offsets[r_symndx];
1672 /* The offset must always be a multiple of 4. We use
1673 the least significant bit to record whether we have
1674 already generated the necessary reloc. */
1679 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1684 Elf_Internal_Rela outrel;
1687 s = bfd_get_section_by_name (dynobj, ".rela.got");
1688 BFD_ASSERT (s != NULL);
1690 outrel.r_offset = (sgot->output_section->vma
1691 + sgot->output_offset
1693 outrel.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
1694 outrel.r_addend = relocation;
1696 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
1697 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1700 local_got_offsets[r_symndx] |= 1;
1704 relocation = sgot->output_offset + off;
1705 if (r_type == R_68K_GOT8O
1706 || r_type == R_68K_GOT16O
1707 || r_type == R_68K_GOT32O)
1709 /* This relocation does not use the addend. */
1713 relocation += sgot->output_section->vma;
1720 /* Relocation is to the entry for this symbol in the
1721 procedure linkage table. */
1723 /* Resolve a PLTxx reloc against a local symbol directly,
1724 without using the procedure linkage table. */
1728 if (h->plt.offset == (bfd_vma) -1
1729 || !elf_hash_table (info)->dynamic_sections_created)
1731 /* We didn't make a PLT entry for this symbol. This
1732 happens when statically linking PIC code, or when
1733 using -Bsymbolic. */
1739 splt = bfd_get_section_by_name (dynobj, ".plt");
1740 BFD_ASSERT (splt != NULL);
1743 relocation = (splt->output_section->vma
1744 + splt->output_offset
1746 unresolved_reloc = FALSE;
1752 /* Relocation is the offset of the entry for this symbol in
1753 the procedure linkage table. */
1754 BFD_ASSERT (h != NULL && h->plt.offset != (bfd_vma) -1);
1758 splt = bfd_get_section_by_name (dynobj, ".plt");
1759 BFD_ASSERT (splt != NULL);
1762 relocation = h->plt.offset;
1763 unresolved_reloc = FALSE;
1765 /* This relocation does not use the addend. */
1775 && h->forced_local))
1783 && (input_section->flags & SEC_ALLOC) != 0
1785 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1786 || h->root.type != bfd_link_hash_undefweak)
1787 && ((r_type != R_68K_PC8
1788 && r_type != R_68K_PC16
1789 && r_type != R_68K_PC32)
1793 || !h->def_regular))))
1795 Elf_Internal_Rela outrel;
1797 bfd_boolean skip, relocate;
1799 /* When generating a shared object, these relocations
1800 are copied into the output file to be resolved at run
1807 _bfd_elf_section_offset (output_bfd, info, input_section,
1809 if (outrel.r_offset == (bfd_vma) -1)
1811 else if (outrel.r_offset == (bfd_vma) -2)
1812 skip = TRUE, relocate = TRUE;
1813 outrel.r_offset += (input_section->output_section->vma
1814 + input_section->output_offset);
1817 memset (&outrel, 0, sizeof outrel);
1820 && (r_type == R_68K_PC8
1821 || r_type == R_68K_PC16
1822 || r_type == R_68K_PC32
1825 || !h->def_regular))
1827 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1828 outrel.r_addend = rel->r_addend;
1832 /* This symbol is local, or marked to become local. */
1833 if (r_type == R_68K_32)
1836 outrel.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
1837 outrel.r_addend = relocation + rel->r_addend;
1843 if (bfd_is_abs_section (sec))
1845 else if (sec == NULL || sec->owner == NULL)
1847 bfd_set_error (bfd_error_bad_value);
1854 osec = sec->output_section;
1855 indx = elf_section_data (osec)->dynindx;
1856 BFD_ASSERT (indx > 0);
1859 outrel.r_info = ELF32_R_INFO (indx, r_type);
1860 outrel.r_addend = relocation + rel->r_addend;
1864 sreloc = elf_section_data (input_section)->sreloc;
1868 loc = sreloc->contents;
1869 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1870 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1872 /* This reloc will be computed at runtime, so there's no
1873 need to do anything now, except for R_68K_32
1874 relocations that have been turned into
1882 case R_68K_GNU_VTINHERIT:
1883 case R_68K_GNU_VTENTRY:
1884 /* These are no-ops in the end. */
1891 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
1892 because such sections are not SEC_ALLOC and thus ld.so will
1893 not process them. */
1894 if (unresolved_reloc
1895 && !((input_section->flags & SEC_DEBUGGING) != 0
1898 (*_bfd_error_handler)
1899 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
1902 (long) rel->r_offset,
1904 h->root.root.string);
1908 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
1909 contents, rel->r_offset,
1910 relocation, rel->r_addend);
1912 if (r != bfd_reloc_ok)
1917 name = h->root.root.string;
1920 name = bfd_elf_string_from_elf_section (input_bfd,
1921 symtab_hdr->sh_link,
1926 name = bfd_section_name (input_bfd, sec);
1929 if (r == bfd_reloc_overflow)
1931 if (!(info->callbacks->reloc_overflow
1932 (info, (h ? &h->root : NULL), name, howto->name,
1933 (bfd_vma) 0, input_bfd, input_section,
1939 (*_bfd_error_handler)
1940 (_("%B(%A+0x%lx): reloc against `%s': error %d"),
1941 input_bfd, input_section,
1942 (long) rel->r_offset, name, (int) r);
1951 /* Finish up dynamic symbol handling. We set the contents of various
1952 dynamic sections here. */
1955 elf_m68k_finish_dynamic_symbol (output_bfd, info, h, sym)
1957 struct bfd_link_info *info;
1958 struct elf_link_hash_entry *h;
1959 Elf_Internal_Sym *sym;
1962 int plt_off1, plt_off2, plt_off3;
1964 dynobj = elf_hash_table (info)->dynobj;
1966 if (h->plt.offset != (bfd_vma) -1)
1973 Elf_Internal_Rela rela;
1976 /* This symbol has an entry in the procedure linkage table. Set
1979 BFD_ASSERT (h->dynindx != -1);
1981 splt = bfd_get_section_by_name (dynobj, ".plt");
1982 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
1983 srela = bfd_get_section_by_name (dynobj, ".rela.plt");
1984 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1986 /* Get the index in the procedure linkage table which
1987 corresponds to this symbol. This is the index of this symbol
1988 in all the symbols for which we are making plt entries. The
1989 first entry in the procedure linkage table is reserved. */
1990 if (CPU32_FLAG (output_bfd))
1991 plt_index = (h->plt.offset / PLT_CPU32_ENTRY_SIZE) - 1;
1992 else if (CFV4E_FLAG (output_bfd))
1993 plt_index = (h->plt.offset / CFV4E_PLT_ENTRY_SIZE) - 1;
1995 plt_index = (h->plt.offset / PLT_ENTRY_SIZE) - 1;
1997 /* Get the offset into the .got table of the entry that
1998 corresponds to this function. Each .got entry is 4 bytes.
1999 The first three are reserved. */
2000 got_offset = (plt_index + 3) * 4;
2002 if (CPU32_FLAG (output_bfd))
2004 /* Fill in the entry in the procedure linkage table. */
2005 memcpy (splt->contents + h->plt.offset, elf_cpu32_plt_entry,
2006 PLT_CPU32_ENTRY_SIZE);
2011 else if (CFV4E_FLAG (output_bfd))
2013 memcpy (splt->contents + h->plt.offset, elf_cfv4e_plt_entry,
2014 CFV4E_PLT_ENTRY_SIZE);
2021 /* Fill in the entry in the procedure linkage table. */
2022 memcpy (splt->contents + h->plt.offset, elf_m68k_plt_entry,
2029 /* The offset is relative to the first extension word. */
2030 bfd_put_32 (output_bfd,
2031 sgot->output_section->vma
2032 + sgot->output_offset
2034 - (splt->output_section->vma
2036 + (CFV4E_FLAG (output_bfd) ? 8 : 2)),
2037 splt->contents + h->plt.offset + plt_off1);
2039 bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
2040 splt->contents + h->plt.offset + plt_off2);
2041 bfd_put_32 (output_bfd, - (h->plt.offset + plt_off3),
2042 splt->contents + h->plt.offset + plt_off3);
2044 /* Fill in the entry in the global offset table. */
2045 bfd_put_32 (output_bfd,
2046 (splt->output_section->vma
2047 + splt->output_offset
2049 + (CFV4E_FLAG (output_bfd) ? 12 : 8)),
2050 sgot->contents + got_offset);
2052 /* Fill in the entry in the .rela.plt section. */
2053 rela.r_offset = (sgot->output_section->vma
2054 + sgot->output_offset
2056 rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_JMP_SLOT);
2058 loc = srela->contents + plt_index * sizeof (Elf32_External_Rela);
2059 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2061 if (!h->def_regular)
2063 /* Mark the symbol as undefined, rather than as defined in
2064 the .plt section. Leave the value alone. */
2065 sym->st_shndx = SHN_UNDEF;
2069 if (h->got.offset != (bfd_vma) -1)
2073 Elf_Internal_Rela rela;
2076 /* This symbol has an entry in the global offset table. Set it
2079 sgot = bfd_get_section_by_name (dynobj, ".got");
2080 srela = bfd_get_section_by_name (dynobj, ".rela.got");
2081 BFD_ASSERT (sgot != NULL && srela != NULL);
2083 rela.r_offset = (sgot->output_section->vma
2084 + sgot->output_offset
2085 + (h->got.offset &~ (bfd_vma) 1));
2087 /* If this is a -Bsymbolic link, and the symbol is defined
2088 locally, we just want to emit a RELATIVE reloc. Likewise if
2089 the symbol was forced to be local because of a version file.
2090 The entry in the global offset table will already have been
2091 initialized in the relocate_section function. */
2098 rela.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
2099 rela.r_addend = bfd_get_signed_32 (output_bfd,
2101 + (h->got.offset &~ (bfd_vma) 1)));
2105 bfd_put_32 (output_bfd, (bfd_vma) 0,
2106 sgot->contents + (h->got.offset &~ (bfd_vma) 1));
2107 rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_GLOB_DAT);
2111 loc = srela->contents;
2112 loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
2113 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2119 Elf_Internal_Rela rela;
2122 /* This symbol needs a copy reloc. Set it up. */
2124 BFD_ASSERT (h->dynindx != -1
2125 && (h->root.type == bfd_link_hash_defined
2126 || h->root.type == bfd_link_hash_defweak));
2128 s = bfd_get_section_by_name (h->root.u.def.section->owner,
2130 BFD_ASSERT (s != NULL);
2132 rela.r_offset = (h->root.u.def.value
2133 + h->root.u.def.section->output_section->vma
2134 + h->root.u.def.section->output_offset);
2135 rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_COPY);
2137 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
2138 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2141 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
2142 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2143 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2144 sym->st_shndx = SHN_ABS;
2149 /* Finish up the dynamic sections. */
2152 elf_m68k_finish_dynamic_sections (output_bfd, info)
2154 struct bfd_link_info *info;
2160 dynobj = elf_hash_table (info)->dynobj;
2162 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
2163 BFD_ASSERT (sgot != NULL);
2164 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
2166 if (elf_hash_table (info)->dynamic_sections_created)
2169 Elf32_External_Dyn *dyncon, *dynconend;
2171 splt = bfd_get_section_by_name (dynobj, ".plt");
2172 BFD_ASSERT (splt != NULL && sdyn != NULL);
2174 dyncon = (Elf32_External_Dyn *) sdyn->contents;
2175 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
2176 for (; dyncon < dynconend; dyncon++)
2178 Elf_Internal_Dyn dyn;
2182 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
2195 s = bfd_get_section_by_name (output_bfd, name);
2196 BFD_ASSERT (s != NULL);
2197 dyn.d_un.d_ptr = s->vma;
2198 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2202 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2203 BFD_ASSERT (s != NULL);
2204 dyn.d_un.d_val = s->size;
2205 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2209 /* The procedure linkage table relocs (DT_JMPREL) should
2210 not be included in the overall relocs (DT_RELA).
2211 Therefore, we override the DT_RELASZ entry here to
2212 make it not include the JMPREL relocs. Since the
2213 linker script arranges for .rela.plt to follow all
2214 other relocation sections, we don't have to worry
2215 about changing the DT_RELA entry. */
2216 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2218 dyn.d_un.d_val -= s->size;
2219 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2224 /* Fill in the first entry in the procedure linkage table. */
2227 if (CFV4E_FLAG (output_bfd))
2229 memcpy (splt->contents, elf_cfv4e_plt0_entry, CFV4E_PLT_ENTRY_SIZE);
2230 bfd_put_32 (output_bfd,
2231 (sgot->output_section->vma
2232 + sgot->output_offset + 4
2233 - (splt->output_section->vma + 2)),
2234 splt->contents + 2);
2235 bfd_put_32 (output_bfd,
2236 (sgot->output_section->vma
2237 + sgot->output_offset + 8
2238 - (splt->output_section->vma + 10) - 8),
2239 splt->contents + 12);
2240 elf_section_data (splt->output_section)->this_hdr.sh_entsize
2241 = CFV4E_PLT_ENTRY_SIZE;
2243 else if (CPU32_FLAG (output_bfd))
2245 memcpy (splt->contents, elf_cpu32_plt0_entry, PLT_CPU32_ENTRY_SIZE);
2246 bfd_put_32 (output_bfd,
2247 (sgot->output_section->vma
2248 + sgot->output_offset + 4
2249 - (splt->output_section->vma + 2)),
2250 splt->contents + 4);
2251 bfd_put_32 (output_bfd,
2252 (sgot->output_section->vma
2253 + sgot->output_offset + 8
2254 - (splt->output_section->vma + 10)),
2255 splt->contents + 12);
2256 elf_section_data (splt->output_section)->this_hdr.sh_entsize
2257 = PLT_CPU32_ENTRY_SIZE;
2261 memcpy (splt->contents, elf_m68k_plt0_entry, PLT_ENTRY_SIZE);
2262 bfd_put_32 (output_bfd,
2263 (sgot->output_section->vma
2264 + sgot->output_offset + 4
2265 - (splt->output_section->vma + 2)),
2266 splt->contents + 4);
2267 bfd_put_32 (output_bfd,
2268 (sgot->output_section->vma
2269 + sgot->output_offset + 8
2270 - (splt->output_section->vma + 10)),
2271 splt->contents + 12);
2272 elf_section_data (splt->output_section)->this_hdr.sh_entsize
2278 /* Fill in the first three entries in the global offset table. */
2282 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
2284 bfd_put_32 (output_bfd,
2285 sdyn->output_section->vma + sdyn->output_offset,
2287 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
2288 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
2291 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
2296 /* Given a .data section and a .emreloc in-memory section, store
2297 relocation information into the .emreloc section which can be
2298 used at runtime to relocate the section. This is called by the
2299 linker when the --embedded-relocs switch is used. This is called
2300 after the add_symbols entry point has been called for all the
2301 objects, and before the final_link entry point is called. */
2304 bfd_m68k_elf32_create_embedded_relocs (abfd, info, datasec, relsec, errmsg)
2306 struct bfd_link_info *info;
2311 Elf_Internal_Shdr *symtab_hdr;
2312 Elf_Internal_Sym *isymbuf = NULL;
2313 Elf_Internal_Rela *internal_relocs = NULL;
2314 Elf_Internal_Rela *irel, *irelend;
2318 BFD_ASSERT (! info->relocatable);
2322 if (datasec->reloc_count == 0)
2325 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2327 /* Get a copy of the native relocations. */
2328 internal_relocs = (_bfd_elf_link_read_relocs
2329 (abfd, datasec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
2330 info->keep_memory));
2331 if (internal_relocs == NULL)
2334 amt = (bfd_size_type) datasec->reloc_count * 12;
2335 relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
2336 if (relsec->contents == NULL)
2339 p = relsec->contents;
2341 irelend = internal_relocs + datasec->reloc_count;
2342 for (irel = internal_relocs; irel < irelend; irel++, p += 12)
2344 asection *targetsec;
2346 /* We are going to write a four byte longword into the runtime
2347 reloc section. The longword will be the address in the data
2348 section which must be relocated. It is followed by the name
2349 of the target section NUL-padded or truncated to 8
2352 /* We can only relocate absolute longword relocs at run time. */
2353 if (ELF32_R_TYPE (irel->r_info) != (int) R_68K_32)
2355 *errmsg = _("unsupported reloc type");
2356 bfd_set_error (bfd_error_bad_value);
2360 /* Get the target section referred to by the reloc. */
2361 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
2363 /* A local symbol. */
2364 Elf_Internal_Sym *isym;
2366 /* Read this BFD's local symbols if we haven't done so already. */
2367 if (isymbuf == NULL)
2369 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2370 if (isymbuf == NULL)
2371 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
2372 symtab_hdr->sh_info, 0,
2374 if (isymbuf == NULL)
2378 isym = isymbuf + ELF32_R_SYM (irel->r_info);
2379 targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
2384 struct elf_link_hash_entry *h;
2386 /* An external symbol. */
2387 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
2388 h = elf_sym_hashes (abfd)[indx];
2389 BFD_ASSERT (h != NULL);
2390 if (h->root.type == bfd_link_hash_defined
2391 || h->root.type == bfd_link_hash_defweak)
2392 targetsec = h->root.u.def.section;
2397 bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p);
2398 memset (p + 4, 0, 8);
2399 if (targetsec != NULL)
2400 strncpy ((char *) p + 4, targetsec->output_section->name, 8);
2403 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
2405 if (internal_relocs != NULL
2406 && elf_section_data (datasec)->relocs != internal_relocs)
2407 free (internal_relocs);
2411 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
2413 if (internal_relocs != NULL
2414 && elf_section_data (datasec)->relocs != internal_relocs)
2415 free (internal_relocs);
2419 static enum elf_reloc_type_class
2420 elf32_m68k_reloc_type_class (rela)
2421 const Elf_Internal_Rela *rela;
2423 switch ((int) ELF32_R_TYPE (rela->r_info))
2425 case R_68K_RELATIVE:
2426 return reloc_class_relative;
2427 case R_68K_JMP_SLOT:
2428 return reloc_class_plt;
2430 return reloc_class_copy;
2432 return reloc_class_normal;
2436 /* Return address for Ith PLT stub in section PLT, for relocation REL
2437 or (bfd_vma) -1 if it should not be included. */
2440 elf_m68k_plt_sym_val (bfd_vma i, const asection *plt,
2441 const arelent *rel ATTRIBUTE_UNUSED)
2443 if (CPU32_FLAG (plt->owner))
2444 return plt->vma + (i + 1) * PLT_CPU32_ENTRY_SIZE;
2445 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
2448 #define TARGET_BIG_SYM bfd_elf32_m68k_vec
2449 #define TARGET_BIG_NAME "elf32-m68k"
2450 #define ELF_MACHINE_CODE EM_68K
2451 #define ELF_MAXPAGESIZE 0x2000
2452 #define elf_backend_create_dynamic_sections \
2453 _bfd_elf_create_dynamic_sections
2454 #define bfd_elf32_bfd_link_hash_table_create \
2455 elf_m68k_link_hash_table_create
2456 #define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link
2458 #define elf_backend_check_relocs elf_m68k_check_relocs
2459 #define elf_backend_adjust_dynamic_symbol \
2460 elf_m68k_adjust_dynamic_symbol
2461 #define elf_backend_size_dynamic_sections \
2462 elf_m68k_size_dynamic_sections
2463 #define elf_backend_relocate_section elf_m68k_relocate_section
2464 #define elf_backend_finish_dynamic_symbol \
2465 elf_m68k_finish_dynamic_symbol
2466 #define elf_backend_finish_dynamic_sections \
2467 elf_m68k_finish_dynamic_sections
2468 #define elf_backend_gc_mark_hook elf_m68k_gc_mark_hook
2469 #define elf_backend_gc_sweep_hook elf_m68k_gc_sweep_hook
2470 #define bfd_elf32_bfd_merge_private_bfd_data \
2471 elf32_m68k_merge_private_bfd_data
2472 #define bfd_elf32_bfd_set_private_flags \
2473 elf32_m68k_set_private_flags
2474 #define bfd_elf32_bfd_print_private_bfd_data \
2475 elf32_m68k_print_private_bfd_data
2476 #define elf_backend_reloc_type_class elf32_m68k_reloc_type_class
2477 #define elf_backend_plt_sym_val elf_m68k_plt_sym_val
2478 #define elf_backend_object_p elf32_m68k_object_p
2480 #define elf_backend_can_gc_sections 1
2481 #define elf_backend_can_refcount 1
2482 #define elf_backend_want_got_plt 1
2483 #define elf_backend_plt_readonly 1
2484 #define elf_backend_want_plt_sym 0
2485 #define elf_backend_got_header_size 12
2486 #define elf_backend_rela_normal 1
2488 #include "elf32-target.h"