diff options
Diffstat (limited to 'tools/objtool/arch/x86/insn/inat.c')
-rw-r--r-- | tools/objtool/arch/x86/insn/inat.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/tools/objtool/arch/x86/insn/inat.c b/tools/objtool/arch/x86/insn/inat.c new file mode 100644 index 000000000000..e4bf28e6f4c7 --- /dev/null +++ b/tools/objtool/arch/x86/insn/inat.c | |||
@@ -0,0 +1,97 @@ | |||
1 | /* | ||
2 | * x86 instruction attribute tables | ||
3 | * | ||
4 | * Written by Masami Hiramatsu <mhiramat@redhat.com> | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with this program; if not, write to the Free Software | ||
18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
19 | * | ||
20 | */ | ||
21 | #include "insn.h" | ||
22 | |||
23 | /* Attribute tables are generated from opcode map */ | ||
24 | #include "inat-tables.c" | ||
25 | |||
26 | /* Attribute search APIs */ | ||
27 | insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode) | ||
28 | { | ||
29 | return inat_primary_table[opcode]; | ||
30 | } | ||
31 | |||
32 | int inat_get_last_prefix_id(insn_byte_t last_pfx) | ||
33 | { | ||
34 | insn_attr_t lpfx_attr; | ||
35 | |||
36 | lpfx_attr = inat_get_opcode_attribute(last_pfx); | ||
37 | return inat_last_prefix_id(lpfx_attr); | ||
38 | } | ||
39 | |||
40 | insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, int lpfx_id, | ||
41 | insn_attr_t esc_attr) | ||
42 | { | ||
43 | const insn_attr_t *table; | ||
44 | int n; | ||
45 | |||
46 | n = inat_escape_id(esc_attr); | ||
47 | |||
48 | table = inat_escape_tables[n][0]; | ||
49 | if (!table) | ||
50 | return 0; | ||
51 | if (inat_has_variant(table[opcode]) && lpfx_id) { | ||
52 | table = inat_escape_tables[n][lpfx_id]; | ||
53 | if (!table) | ||
54 | return 0; | ||
55 | } | ||
56 | return table[opcode]; | ||
57 | } | ||
58 | |||
59 | insn_attr_t inat_get_group_attribute(insn_byte_t modrm, int lpfx_id, | ||
60 | insn_attr_t grp_attr) | ||
61 | { | ||
62 | const insn_attr_t *table; | ||
63 | int n; | ||
64 | |||
65 | n = inat_group_id(grp_attr); | ||
66 | |||
67 | table = inat_group_tables[n][0]; | ||
68 | if (!table) | ||
69 | return inat_group_common_attribute(grp_attr); | ||
70 | if (inat_has_variant(table[X86_MODRM_REG(modrm)]) && lpfx_id) { | ||
71 | table = inat_group_tables[n][lpfx_id]; | ||
72 | if (!table) | ||
73 | return inat_group_common_attribute(grp_attr); | ||
74 | } | ||
75 | return table[X86_MODRM_REG(modrm)] | | ||
76 | inat_group_common_attribute(grp_attr); | ||
77 | } | ||
78 | |||
79 | insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, insn_byte_t vex_m, | ||
80 | insn_byte_t vex_p) | ||
81 | { | ||
82 | const insn_attr_t *table; | ||
83 | if (vex_m > X86_VEX_M_MAX || vex_p > INAT_LSTPFX_MAX) | ||
84 | return 0; | ||
85 | /* At first, this checks the master table */ | ||
86 | table = inat_avx_tables[vex_m][0]; | ||
87 | if (!table) | ||
88 | return 0; | ||
89 | if (!inat_is_group(table[opcode]) && vex_p) { | ||
90 | /* If this is not a group, get attribute directly */ | ||
91 | table = inat_avx_tables[vex_m][vex_p]; | ||
92 | if (!table) | ||
93 | return 0; | ||
94 | } | ||
95 | return table[opcode]; | ||
96 | } | ||
97 | |||