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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
/* Default child (native) target interface, for GDB when running under
Unix.
Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998,
1999, 2000, 2001, 2002, 2004, 2005, 2007, 2008, 2009, 2010
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 "defs.h"
#include "regcache.h"
#include "memattr.h"
#include "symtab.h"
#include "target.h"
#include "inferior.h"
#include "gdb_string.h"
#include "inf-child.h"
/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
for all registers. */
static void
inf_child_fetch_inferior_registers (struct target_ops *ops,
struct regcache *regcache, int regnum)
{
if (regnum == -1)
{
for (regnum = 0;
regnum < gdbarch_num_regs (get_regcache_arch (regcache));
regnum++)
regcache_raw_supply (regcache, regnum, NULL);
}
else
regcache_raw_supply (regcache, regnum, NULL);
}
/* Store register REGNUM back into the inferior. If REGNUM is -1, do
this for all registers (including the floating point registers). */
static void
inf_child_store_inferior_registers (struct target_ops *ops,
struct regcache *regcache, int regnum)
{
}
static void
inf_child_post_attach (int pid)
{
/* This version of Unix doesn't require a meaningful "post attach"
operation by a debugger. */
}
/* Get ready to modify the registers array. On machines which store
individual registers, this doesn't need to do anything. On
machines which store all the registers in one fell swoop, this
makes sure that registers contains all the registers from the
program being debugged. */
static void
inf_child_prepare_to_store (struct regcache *regcache)
{
}
static void
inf_child_open (char *arg, int from_tty)
{
error (_("Use the \"run\" command to start a Unix child process."));
}
static void
inf_child_post_startup_inferior (ptid_t ptid)
{
/* This version of Unix doesn't require a meaningful "post startup
inferior" operation by a debugger. */
}
static void
inf_child_acknowledge_created_inferior (int pid)
{
/* This version of Unix doesn't require a meaningful "acknowledge
created inferior" operation by a debugger. */
}
static void
inf_child_insert_fork_catchpoint (int pid)
{
/* This version of Unix doesn't support notification of fork
events. */
}
static int
inf_child_remove_fork_catchpoint (int pid)
{
/* This version of Unix doesn't support notification of fork
events. */
return 0;
}
static void
inf_child_insert_vfork_catchpoint (int pid)
{
/* This version of Unix doesn't support notification of vfork
events. */
}
static int
inf_child_remove_vfork_catchpoint (int pid)
{
/* This version of Unix doesn't support notification of vfork
events. */
return 0;
}
static int
inf_child_follow_fork (struct target_ops *ops, int follow_child)
{
/* This version of Unix doesn't support following fork or vfork
events. */
return 0;
}
static void
inf_child_insert_exec_catchpoint (int pid)
{
/* This version of Unix doesn't support notification of exec
events. */
}
static int
inf_child_remove_exec_catchpoint (int pid)
{
/* This version of Unix doesn't support notification of exec
events. */
return 0;
}
static int
inf_child_set_syscall_catchpoint (int pid, int needed, int any_count,
int table_size, int *table)
{
/* This version of Unix doesn't support notification of syscall
events. */
return 0;
}
static int
inf_child_can_run (void)
{
return 1;
}
static char *
inf_child_pid_to_exec_file (int pid)
{
/* This version of Unix doesn't support translation of a process ID
to the filename of the executable file. */
return NULL;
}
struct target_ops *
inf_child_target (void)
{
struct target_ops *t = XZALLOC (struct target_ops);
t->to_shortname = "child";
t->to_longname = "Unix child process";
t->to_doc = "Unix child process (started by the \"run\" command).";
t->to_open = inf_child_open;
t->to_post_attach = inf_child_post_attach;
t->to_fetch_registers = inf_child_fetch_inferior_registers;
t->to_store_registers = inf_child_store_inferior_registers;
t->to_prepare_to_store = inf_child_prepare_to_store;
t->to_insert_breakpoint = memory_insert_breakpoint;
t->to_remove_breakpoint = memory_remove_breakpoint;
t->to_terminal_init = terminal_init_inferior;
t->to_terminal_inferior = terminal_inferior;
t->to_terminal_ours_for_output = terminal_ours_for_output;
t->to_terminal_save_ours = terminal_save_ours;
t->to_terminal_ours = terminal_ours;
t->to_terminal_info = child_terminal_info;
t->to_post_startup_inferior = inf_child_post_startup_inferior;
t->to_acknowledge_created_inferior = inf_child_acknowledge_created_inferior;
t->to_insert_fork_catchpoint = inf_child_insert_fork_catchpoint;
t->to_remove_fork_catchpoint = inf_child_remove_fork_catchpoint;
t->to_insert_vfork_catchpoint = inf_child_insert_vfork_catchpoint;
t->to_remove_vfork_catchpoint = inf_child_remove_vfork_catchpoint;
t->to_follow_fork = inf_child_follow_fork;
t->to_insert_exec_catchpoint = inf_child_insert_exec_catchpoint;
t->to_remove_exec_catchpoint = inf_child_remove_exec_catchpoint;
t->to_set_syscall_catchpoint = inf_child_set_syscall_catchpoint;
t->to_can_run = inf_child_can_run;
t->to_pid_to_exec_file = inf_child_pid_to_exec_file;
t->to_stratum = process_stratum;
t->to_has_all_memory = default_child_has_all_memory;
t->to_has_memory = default_child_has_memory;
t->to_has_stack = default_child_has_stack;
t->to_has_registers = default_child_has_registers;
t->to_has_execution = default_child_has_execution;
t->to_magic = OPS_MAGIC;
return t;
}
|
