1 /* BFD support for AArch64.
2 Copyright (C) 2009-2016 Free Software Foundation, Inc.
3 Contributed by ARM Ltd.
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; see the file COPYING3. If not,
19 see <http://www.gnu.org/licenses/>. */
24 #include "libiberty.h"
26 /* This routine is provided two arch_infos and works out which Aarch64
27 machine which would be compatible with both and returns a pointer
28 to its info structure. */
30 static const bfd_arch_info_type *
31 compatible (const bfd_arch_info_type * a, const bfd_arch_info_type * b)
33 /* If a & b are for different architecture we can do nothing. */
34 if (a->arch != b->arch)
37 /* If a & b are for the same machine then all is well. */
38 if (a->mach == b->mach)
41 /* Don't allow mixing ilp32 with lp64. */
42 if ((a->mach & bfd_mach_aarch64_ilp32) != (b->mach & bfd_mach_aarch64_ilp32))
45 /* Otherwise if either a or b is the 'default' machine
46 then it can be polymorphed into the other. */
53 /* So far all newer cores are
54 supersets of previous cores. */
55 if (a->mach < b->mach)
57 else if (a->mach > b->mach)
71 /* These two are example CPUs supported in GCC, once we have real
72 CPUs they will be removed. */
73 { bfd_mach_aarch64, "example-1" },
74 { bfd_mach_aarch64, "example-2" }
78 scan (const struct bfd_arch_info *info, const char *string)
82 /* First test for an exact match. */
83 if (strcasecmp (string, info->printable_name) == 0)
86 /* Next check for a processor name instead of an Architecture name. */
87 for (i = sizeof (processors) / sizeof (processors[0]); i--;)
89 if (strcasecmp (string, processors[i].name) == 0)
93 if (i != -1 && info->mach == processors[i].mach)
96 /* Finally check for the default architecture. */
97 if (strcasecmp (string, "aarch64") == 0)
98 return info->the_default;
103 #define N(NUMBER, PRINT, WORDSIZE, DEFAULT, NEXT) \
104 { WORDSIZE, WORDSIZE, 8, bfd_arch_aarch64, NUMBER, \
105 "aarch64", PRINT, 4, DEFAULT, compatible, scan, \
106 bfd_arch_default_fill, NEXT }
108 static const bfd_arch_info_type bfd_aarch64_arch_ilp32 =
109 N (bfd_mach_aarch64_ilp32, "aarch64:ilp32", 32, FALSE, NULL);
111 const bfd_arch_info_type bfd_aarch64_arch =
112 N (0, "aarch64", 64, TRUE, &bfd_aarch64_arch_ilp32);
115 bfd_is_aarch64_special_symbol_name (const char *name, int type)
117 if (!name || name[0] != '$')
119 if (name[1] == 'x' || name[1] == 'd')
120 type &= BFD_AARCH64_SPECIAL_SYM_TYPE_MAP;
121 else if (name[1] == 'm' || name[1] == 'f' || name[1] == 'p')
122 type &= BFD_AARCH64_SPECIAL_SYM_TYPE_TAG;
126 return (type != 0 && (name[2] == 0 || name[2] == '.'));