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
168
|
/* Copyright (C) 2007-2020 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 "win32-low.h"
using namespace windows_nat;
#ifndef CONTEXT_FLOATING_POINT
#define CONTEXT_FLOATING_POINT 0
#endif
/* Defined in auto-generated file reg-arm.c. */
void init_registers_arm (void);
extern const struct target_desc *tdesc_arm;
static void
arm_get_thread_context (windows_thread_info *th)
{
th->context.ContextFlags = \
CONTEXT_FULL | \
CONTEXT_FLOATING_POINT;
GetThreadContext (th->h, &th->context);
}
#define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
static const int mappings[] = {
context_offset (R0),
context_offset (R1),
context_offset (R2),
context_offset (R3),
context_offset (R4),
context_offset (R5),
context_offset (R6),
context_offset (R7),
context_offset (R8),
context_offset (R9),
context_offset (R10),
context_offset (R11),
context_offset (R12),
context_offset (Sp),
context_offset (Lr),
context_offset (Pc),
-1, /* f0 */
-1, /* f1 */
-1, /* f2 */
-1, /* f3 */
-1, /* f4 */
-1, /* f5 */
-1, /* f6 */
-1, /* f7 */
-1, /* fps */
context_offset (Psr),
};
#undef context_offset
/* Return a pointer into a CONTEXT field indexed by gdb register number.
Return a pointer to an dummy register holding zero if there is no
corresponding CONTEXT field for the given register number. */
static char *
regptr (CONTEXT* c, int r)
{
if (mappings[r] < 0)
{
static ULONG zero;
/* Always force value to zero, in case the user tried to write
to this register before. */
zero = 0;
return (char *) &zero;
}
else
return (char *) c + mappings[r];
}
/* Fetch register from gdbserver regcache data. */
static void
arm_fetch_inferior_register (struct regcache *regcache,
windows_thread_info *th, int r)
{
char *context_offset = regptr (&th->context, r);
supply_register (regcache, r, context_offset);
}
/* Store a new register value into the thread context of TH. */
static void
arm_store_inferior_register (struct regcache *regcache,
windows_thread_info *th, int r)
{
collect_register (regcache, r, regptr (&th->context, r));
}
static void
arm_arch_setup (void)
{
init_registers_arm ();
win32_tdesc = tdesc_arm;
}
/* Implement win32_target_ops "num_regs" method. */
static int
arm_num_regs (void)
{
return sizeof (mappings) / sizeof (mappings[0]),
}
/* Correct in either endianness. We do not support Thumb yet. */
static const unsigned long arm_wince_breakpoint = 0xe6000010;
#define arm_wince_breakpoint_len 4
/* Implement win32_target_ops "get_pc" method. */
static CORE_ADDR
arm_win32_get_pc (struct regcache *regcache)
{
uint32_t pc;
collect_register_by_name (regcache, "pc", &pc);
return (CORE_ADDR) pc;
}
/* Implement win32_target_ops "set_pc" method. */
static void
arm_win32_set_pc (struct regcache *regcache, CORE_ADDR pc)
{
uint32_t newpc = pc;
supply_register_by_name (regcache, "pc", &newpc);
}
struct win32_target_ops the_low_target = {
arm_arch_setup,
arm_num_regs,
NULL, /* initial_stuff */
arm_get_thread_context,
NULL, /* prepare_to_resume */
NULL, /* thread_added */
arm_fetch_inferior_register,
arm_store_inferior_register,
NULL, /* single_step */
(const unsigned char *) &arm_wince_breakpoint,
arm_wince_breakpoint_len,
0,
arm_win32_get_pc,
arm_win32_set_pc,
/* Watchpoint related functions. See target.h for comments. */
NULL, /* supports_z_point_type */
NULL, /* insert_point */
NULL, /* remove_point */
NULL, /* stopped_by_watchpoint */
NULL /* stopped_data_address */
};
|
