Fix memory leak in RiscV assembler.
[binutils-gdb.git] / bfd / cpu-aarch64.c
blobdf0d8c8c0dd0297501cc83abc1400b5ce37509e6
1 /* BFD support for AArch64.
2 Copyright (C) 2009-2023 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/>. */
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "libiberty.h"
25 #include "cpu-aarch64.h"
27 /* This routine is provided two arch_infos and works out which Aarch64
28 machine which would be compatible with both and returns a pointer
29 to its info structure. */
31 static const bfd_arch_info_type *
32 compatible (const bfd_arch_info_type * a, const bfd_arch_info_type * b)
34 /* If a & b are for different architecture we can do nothing. */
35 if (a->arch != b->arch)
36 return NULL;
38 /* If a & b are for the same machine then all is well. */
39 if (a->mach == b->mach)
40 return a;
42 /* Don't allow mixing data models. */
43 if ((a->mach ^ b->mach) & (bfd_mach_aarch64_ilp32 | bfd_mach_aarch64_llp64))
44 return NULL;
46 /* Otherwise if either a or b is the 'default' machine
47 then it can be polymorphed into the other. */
48 if (a->the_default)
49 return b;
51 if (b->the_default)
52 return a;
54 /* So far all newer cores are
55 supersets of previous cores. */
56 if (a->mach < b->mach)
57 return b;
58 else if (a->mach > b->mach)
59 return a;
61 /* Never reached! */
62 return NULL;
65 static struct
67 unsigned int mach;
68 char *name;
70 processors[] =
72 { bfd_mach_aarch64, "cortex-a34" },
73 { bfd_mach_aarch64, "cortex-a65" },
74 { bfd_mach_aarch64, "cortex-a65ae" },
75 { bfd_mach_aarch64, "cortex-a76ae" },
76 { bfd_mach_aarch64, "cortex-a77" },
77 { bfd_mach_aarch64, "cortex-a720" }
80 static bool
81 scan (const struct bfd_arch_info *info, const char *string)
83 int i;
85 /* First test for an exact match. */
86 if (strcasecmp (string, info->printable_name) == 0)
87 return true;
89 /* If there is a prefix of "aarch64:" then skip it. */
90 const char * colon;
91 if ((colon = strchr (string, ':')) != NULL)
93 if (strncasecmp (string, "aarch64", colon - string) != 0)
94 return false;
95 string = colon + 1;
98 /* Next check for a processor name instead of an Architecture name. */
99 for (i = sizeof (processors) / sizeof (processors[0]); i--;)
101 if (strcasecmp (string, processors[i].name) == 0)
102 break;
105 if (i != -1 && info->mach == processors[i].mach)
106 return true;
108 /* Finally check for the default architecture. */
109 if (strcasecmp (string, "aarch64") == 0)
110 return info->the_default;
112 return false;
115 /* Figure out if llp64 is default */
116 #if DEFAULT_VECTOR == aarch64_pe_le_vec
117 #define LLP64_DEFAULT true
118 #define AARCH64_DEFAULT false
119 #else
120 #define LLP64_DEFAULT false
121 #define AARCH64_DEFAULT true
122 #endif
124 #define N(NUMBER, PRINT, WORDSIZE, ADDRSIZE, DEFAULT, NEXT) \
125 { WORDSIZE, ADDRSIZE, 8, bfd_arch_aarch64, NUMBER, \
126 "aarch64", PRINT, 4, DEFAULT, compatible, scan, \
127 bfd_arch_default_fill, NEXT, 0 }
129 static const bfd_arch_info_type bfd_aarch64_arch_v8_r =
130 N (bfd_mach_aarch64_8R, "aarch64:armv8-r", 64, 64, false, NULL);
132 static const bfd_arch_info_type bfd_aarch64_arch_ilp32 =
133 N (bfd_mach_aarch64_ilp32, "aarch64:ilp32", 32, 32, false,
134 &bfd_aarch64_arch_v8_r);
136 static const bfd_arch_info_type bfd_aarch64_arch_llp64 =
137 N (bfd_mach_aarch64_llp64, "aarch64:llp64", 32, 64, LLP64_DEFAULT,
138 &bfd_aarch64_arch_ilp32);
140 const bfd_arch_info_type bfd_aarch64_arch =
141 N (0, "aarch64", 64, 64, AARCH64_DEFAULT, &bfd_aarch64_arch_llp64);
143 bool
144 bfd_is_aarch64_special_symbol_name (const char *name, int type)
146 if (!name || name[0] != '$')
147 return false;
148 if (name[1] == 'x' || name[1] == 'd')
149 type &= BFD_AARCH64_SPECIAL_SYM_TYPE_MAP;
150 else if (name[1] == 'm' || name[1] == 'f' || name[1] == 'p')
151 type &= BFD_AARCH64_SPECIAL_SYM_TYPE_TAG;
152 else
153 return false;
155 return (type != 0 && (name[2] == 0 || name[2] == '.'));