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/>. */
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
)
38 /* If a & b are for the same machine then all is well. */
39 if (a
->mach
== b
->mach
)
42 /* Don't allow mixing data models. */
43 if ((a
->mach
^ b
->mach
) & (bfd_mach_aarch64_ilp32
| bfd_mach_aarch64_llp64
))
46 /* Otherwise if either a or b is the 'default' machine
47 then it can be polymorphed into the other. */
54 /* So far all newer cores are
55 supersets of previous cores. */
56 if (a
->mach
< b
->mach
)
58 else if (a
->mach
> b
->mach
)
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" }
80 scan (const struct bfd_arch_info
*info
, const char *string
)
84 /* First test for an exact match. */
85 if (strcasecmp (string
, info
->printable_name
) == 0)
88 /* If there is a prefix of "aarch64:" then skip it. */
90 if ((colon
= strchr (string
, ':')) != NULL
)
92 if (strncasecmp (string
, "aarch64", colon
- string
) != 0)
97 /* Next check for a processor name instead of an Architecture name. */
98 for (i
= sizeof (processors
) / sizeof (processors
[0]); i
--;)
100 if (strcasecmp (string
, processors
[i
].name
) == 0)
104 if (i
!= -1 && info
->mach
== processors
[i
].mach
)
107 /* Finally check for the default architecture. */
108 if (strcasecmp (string
, "aarch64") == 0)
109 return info
->the_default
;
114 /* Figure out if llp64 is default */
115 #if DEFAULT_VECTOR == aarch64_pe_le_vec
116 #define LLP64_DEFAULT true
117 #define AARCH64_DEFAULT false
119 #define LLP64_DEFAULT false
120 #define AARCH64_DEFAULT true
123 #define N(NUMBER, PRINT, WORDSIZE, ADDRSIZE, DEFAULT, NEXT) \
124 { WORDSIZE, ADDRSIZE, 8, bfd_arch_aarch64, NUMBER, \
125 "aarch64", PRINT, 4, DEFAULT, compatible, scan, \
126 bfd_arch_default_fill, NEXT, 0 }
128 static const bfd_arch_info_type bfd_aarch64_arch_v8_r
=
129 N (bfd_mach_aarch64_8R
, "aarch64:armv8-r", 64, 64, false, NULL
);
131 static const bfd_arch_info_type bfd_aarch64_arch_ilp32
=
132 N (bfd_mach_aarch64_ilp32
, "aarch64:ilp32", 32, 32, false,
133 &bfd_aarch64_arch_v8_r
);
135 static const bfd_arch_info_type bfd_aarch64_arch_llp64
=
136 N (bfd_mach_aarch64_llp64
, "aarch64:llp64", 32, 64, LLP64_DEFAULT
,
137 &bfd_aarch64_arch_ilp32
);
139 const bfd_arch_info_type bfd_aarch64_arch
=
140 N (0, "aarch64", 64, 64, AARCH64_DEFAULT
, &bfd_aarch64_arch_llp64
);
143 bfd_is_aarch64_special_symbol_name (const char *name
, int type
)
145 if (!name
|| name
[0] != '$')
147 if (name
[1] == 'x' || name
[1] == 'd')
148 type
&= BFD_AARCH64_SPECIAL_SYM_TYPE_MAP
;
149 else if (name
[1] == 'm' || name
[1] == 'f' || name
[1] == 'p')
150 type
&= BFD_AARCH64_SPECIAL_SYM_TYPE_TAG
;
154 return (type
!= 0 && (name
[2] == 0 || name
[2] == '.'));