1 /* Intel x86-64 Mach-O support for BFD.
3 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. */
26 #include "libiberty.h"
28 #define bfd_mach_o_object_p bfd_mach_o_x86_64_object_p
29 #define bfd_mach_o_core_p bfd_mach_o_x86_64_core_p
30 #define bfd_mach_o_mkobject bfd_mach_o_x86_64_mkobject
32 static const bfd_target *
33 bfd_mach_o_x86_64_object_p (bfd *abfd)
35 return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_CPU_TYPE_X86_64);
38 static const bfd_target *
39 bfd_mach_o_x86_64_core_p (bfd *abfd)
41 return bfd_mach_o_header_p (abfd,
42 BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_X86_64);
46 bfd_mach_o_x86_64_mkobject (bfd *abfd)
48 bfd_mach_o_data_struct *mdata;
50 if (!bfd_mach_o_mkobject_init (abfd))
53 mdata = bfd_mach_o_get_data (abfd);
54 mdata->header.magic = BFD_MACH_O_MH_MAGIC_64;
55 mdata->header.cputype = BFD_MACH_O_CPU_TYPE_X86_64;
56 mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_X86_ALL;
57 mdata->header.byteorder = BFD_ENDIAN_LITTLE;
58 mdata->header.version = 2;
63 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
64 #define MINUS_ONE (~ (bfd_vma) 0)
66 static reloc_howto_type x86_64_howto_table[]=
69 HOWTO(BFD_RELOC_64, 0, 4, 64, FALSE, 0,
70 complain_overflow_bitfield,
72 FALSE, MINUS_ONE, MINUS_ONE, FALSE),
73 HOWTO(BFD_RELOC_32, 0, 2, 32, FALSE, 0,
74 complain_overflow_bitfield,
76 FALSE, 0xffffffff, 0xffffffff, FALSE),
77 HOWTO(BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0,
78 complain_overflow_bitfield,
80 FALSE, 0xffffffff, 0xffffffff, TRUE),
81 HOWTO(BFD_RELOC_MACH_O_X86_64_PCREL32_1, 0, 2, 32, TRUE, 0,
82 complain_overflow_bitfield,
84 FALSE, 0xffffffff, 0xffffffff, TRUE),
86 HOWTO(BFD_RELOC_MACH_O_X86_64_PCREL32_2, 0, 2, 32, TRUE, 0,
87 complain_overflow_bitfield,
89 FALSE, 0xffffffff, 0xffffffff, TRUE),
90 HOWTO(BFD_RELOC_MACH_O_X86_64_PCREL32_4, 0, 2, 32, TRUE, 0,
91 complain_overflow_bitfield,
93 FALSE, 0xffffffff, 0xffffffff, TRUE),
94 HOWTO(BFD_RELOC_MACH_O_X86_64_BRANCH32, 0, 2, 32, TRUE, 0,
95 complain_overflow_bitfield,
97 FALSE, 0xffffffff, 0xffffffff, TRUE),
98 HOWTO(BFD_RELOC_MACH_O_X86_64_GOT_LOAD, 0, 2, 32, TRUE, 0,
99 complain_overflow_bitfield,
101 FALSE, 0xffffffff, 0xffffffff, TRUE),
103 HOWTO(BFD_RELOC_MACH_O_X86_64_SUBTRACTOR32, 0, 2, 32, FALSE, 0,
104 complain_overflow_bitfield,
105 NULL, "SUBTRACTOR32",
106 FALSE, 0xffffffff, 0xffffffff, FALSE),
107 HOWTO(BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64, 0, 4, 64, FALSE, 0,
108 complain_overflow_bitfield,
109 NULL, "SUBTRACTOR64",
110 FALSE, MINUS_ONE, MINUS_ONE, FALSE),
111 HOWTO(BFD_RELOC_MACH_O_X86_64_GOT, 0, 2, 32, TRUE, 0,
112 complain_overflow_bitfield,
114 FALSE, 0xffffffff, 0xffffffff, TRUE),
115 HOWTO(BFD_RELOC_MACH_O_X86_64_BRANCH8, 0, 0, 8, TRUE, 0,
116 complain_overflow_bitfield,
118 FALSE, 0xff, 0xff, TRUE),
122 bfd_mach_o_x86_64_swap_reloc_in (arelent *res, bfd_mach_o_reloc_info *reloc)
124 /* On x86-64, scattered relocs are not used. */
125 if (reloc->r_scattered)
128 switch (reloc->r_type)
130 case BFD_MACH_O_X86_64_RELOC_UNSIGNED:
133 switch (reloc->r_length)
136 res->howto = &x86_64_howto_table[1];
139 res->howto = &x86_64_howto_table[0];
144 case BFD_MACH_O_X86_64_RELOC_SIGNED:
145 if (reloc->r_length == 2 && reloc->r_pcrel)
147 res->howto = &x86_64_howto_table[2];
151 case BFD_MACH_O_X86_64_RELOC_BRANCH:
154 switch (reloc->r_length)
157 res->howto = &x86_64_howto_table[6];
163 case BFD_MACH_O_X86_64_RELOC_GOT_LOAD:
164 if (reloc->r_length == 2 && reloc->r_pcrel && reloc->r_extern)
166 res->howto = &x86_64_howto_table[7];
170 case BFD_MACH_O_X86_64_RELOC_GOT:
171 if (reloc->r_length == 2 && reloc->r_pcrel && reloc->r_extern)
173 res->howto = &x86_64_howto_table[10];
177 case BFD_MACH_O_X86_64_RELOC_SUBTRACTOR:
180 switch (reloc->r_length)
183 res->howto = &x86_64_howto_table[8];
186 res->howto = &x86_64_howto_table[9];
192 case BFD_MACH_O_X86_64_RELOC_SIGNED_1:
193 if (reloc->r_length == 2 && reloc->r_pcrel)
195 res->howto = &x86_64_howto_table[3];
199 case BFD_MACH_O_X86_64_RELOC_SIGNED_2:
200 if (reloc->r_length == 2 && reloc->r_pcrel)
202 res->howto = &x86_64_howto_table[4];
206 case BFD_MACH_O_X86_64_RELOC_SIGNED_4:
207 if (reloc->r_length == 2 && reloc->r_pcrel)
209 res->howto = &x86_64_howto_table[5];
220 bfd_mach_o_x86_64_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo)
222 rinfo->r_address = rel->address;
223 rinfo->r_scattered = 0;
224 switch (rel->howto->type)
227 rinfo->r_type = BFD_MACH_O_X86_64_RELOC_UNSIGNED;
231 case BFD_RELOC_32_PCREL:
232 rinfo->r_type = BFD_MACH_O_X86_64_RELOC_BRANCH;
236 case BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64:
237 rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SUBTRACTOR;
241 case BFD_RELOC_MACH_O_X86_64_GOT_LOAD:
242 rinfo->r_type = BFD_MACH_O_X86_64_RELOC_GOT_LOAD;
249 if ((*rel->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
252 rinfo->r_value = (*rel->sym_ptr_ptr)->section->target_index;
257 rinfo->r_value = (*rel->sym_ptr_ptr)->udata.i;
262 static reloc_howto_type *
263 bfd_mach_o_x86_64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
264 bfd_reloc_code_real_type code)
269 i < sizeof (x86_64_howto_table) / sizeof (*x86_64_howto_table);
271 if (code == x86_64_howto_table[i].type)
272 return &x86_64_howto_table[i];
276 static reloc_howto_type *
277 bfd_mach_o_x86_64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
278 const char *name ATTRIBUTE_UNUSED)
283 #define bfd_mach_o_swap_reloc_in bfd_mach_o_x86_64_swap_reloc_in
284 #define bfd_mach_o_swap_reloc_out bfd_mach_o_x86_64_swap_reloc_out
286 #define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_x86_64_bfd_reloc_type_lookup
287 #define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_x86_64_bfd_reloc_name_lookup
288 #define bfd_mach_o_print_thread NULL
290 #define TARGET_NAME mach_o_x86_64_vec
291 #define TARGET_STRING "mach-o-x86-64"
292 #define TARGET_ARCHITECTURE bfd_arch_i386
293 #define TARGET_BIG_ENDIAN 0
294 #define TARGET_ARCHIVE 0
295 #include "mach-o-target.c"