1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/* GNU/Linux/x86-64 specific target description, for the remote server
for GDB.
Copyright (C) 2017 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "server.h"
#include "tdesc.h"
#include "linux-x86-tdesc.h"
#include "arch/i386.h"
#include "common/x86-xstate.h"
#if defined __i386__ || !defined IN_PROCESS_AGENT
/* Defined in auto-generated file i386-linux.c. */
void init_registers_i386_linux (void);
extern const struct target_desc *tdesc_i386_linux;
/* Defined in auto-generated file i386-mmx-linux.c. */
void init_registers_i386_mmx_linux (void);
extern const struct target_desc *tdesc_i386_mmx_linux;
/* Defined in auto-generated file i386-avx-linux.c. */
void init_registers_i386_avx_linux (void);
extern const struct target_desc *tdesc_i386_avx_linux;
/* Defined in auto-generated file i386-avx-mpx-linux.c. */
void init_registers_i386_avx_mpx_linux (void);
extern const struct target_desc *tdesc_i386_avx_mpx_linux;
/* Defined in auto-generated file i386-avx-avx512-linux.c. */
void init_registers_i386_avx_avx512_linux (void);
extern const struct target_desc *tdesc_i386_avx_avx512_linux;
/* Defined in auto-generated file i386-avx-mpx-avx512-linux.c. */
void init_registers_i386_avx_mpx_avx512_pku_linux (void);
extern const struct target_desc *tdesc_i386_avx_mpx_avx512_pku_linux;
/* Defined in auto-generated file i386-mpx-linux.c. */
void init_registers_i386_mpx_linux (void);
extern const struct target_desc *tdesc_i386_mpx_linux;
#endif
static struct target_desc *i386_tdescs[X86_TDESC_LAST] = { };
#if defined GDB_SELF_TEST && !defined IN_PROCESS_AGENT
#include "selftest.h"
namespace selftests {
namespace tdesc {
static void
i386_tdesc_test ()
{
struct
{
unsigned int mask;
const target_desc *tdesc;
} tdesc_tests[] = {
{ X86_XSTATE_X87, tdesc_i386_mmx_linux },
{ X86_XSTATE_SSE_MASK, tdesc_i386_linux },
{ X86_XSTATE_AVX_MASK, tdesc_i386_avx_linux },
{ X86_XSTATE_MPX_MASK, tdesc_i386_mpx_linux },
{ X86_XSTATE_AVX_MPX_MASK, tdesc_i386_avx_mpx_linux },
{ X86_XSTATE_AVX_AVX512_MASK, tdesc_i386_avx_avx512_linux },
{ X86_XSTATE_AVX_MPX_AVX512_PKU_MASK, tdesc_i386_avx_mpx_avx512_pku_linux }
};
for (auto &elem : tdesc_tests)
{
const target_desc *tdesc = i386_linux_read_description (elem.mask);
SELF_CHECK (*tdesc == *elem.tdesc);
}
}
}
} // namespace selftests
#endif /* GDB_SELF_TEST */
void
initialize_low_tdesc ()
{
#if defined __i386__ || !defined IN_PROCESS_AGENT
init_registers_i386_linux ();
init_registers_i386_mmx_linux ();
init_registers_i386_avx_linux ();
init_registers_i386_mpx_linux ();
init_registers_i386_avx_mpx_linux ();
init_registers_i386_avx_avx512_linux ();
init_registers_i386_avx_mpx_avx512_pku_linux ();
#if GDB_SELF_TEST && !defined IN_PROCESS_AGENT
selftests::register_test (selftests::tdesc::i386_tdesc_test);
#endif
#endif
}
#if defined __i386__ || !defined IN_PROCESS_AGENT
/* Return the target description according to XCR0. */
const struct target_desc *
i386_linux_read_description (uint64_t xcr0)
{
struct target_desc **tdesc = NULL;
if (xcr0 & X86_XSTATE_PKRU)
tdesc = &i386_tdescs[X86_TDESC_AVX_MPX_AVX512_PKU];
else if (xcr0 & X86_XSTATE_AVX512)
tdesc = &i386_tdescs[X86_TDESC_AVX_AVX512];
else if ((xcr0 & X86_XSTATE_AVX_MPX_MASK) == X86_XSTATE_AVX_MPX_MASK)
tdesc = &i386_tdescs[X86_TDESC_AVX_MPX];
else if (xcr0 & X86_XSTATE_MPX)
tdesc = &i386_tdescs[X86_TDESC_MPX];
else if (xcr0 & X86_XSTATE_AVX)
tdesc = &i386_tdescs[X86_TDESC_AVX];
else if (xcr0 & X86_XSTATE_SSE)
tdesc = &i386_tdescs[X86_TDESC_SSE];
else if (xcr0 & X86_XSTATE_X87)
tdesc = &i386_tdescs[X86_TDESC_MMX];
if (tdesc == NULL)
return NULL;
if (*tdesc == NULL)
{
*tdesc = i386_create_target_description (xcr0);
init_target_desc (*tdesc);
#ifndef IN_PROCESS_AGENT
static const char *expedite_regs_i386[] = { "ebp", "esp", "eip", NULL };
(*tdesc)->expedite_regs = expedite_regs_i386;
#endif
}
return *tdesc;;
}
#endif
#ifndef IN_PROCESS_AGENT
int
i386_get_ipa_tdesc_idx (const struct target_desc *tdesc)
{
for (int i = 0; i < X86_TDESC_LAST; i++)
{
if (tdesc == i386_tdescs[i])
return i;
}
/* If none tdesc is found, return the one with minimum features. */
return X86_TDESC_MMX;
}
#endif
|
