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5bf970f9 AC |
1 | /* Default child (native) target interface, for GDB when running under |
2 | Unix. | |
3 | ||
6aba47ca | 4 | Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, |
9b254dd1 DJ |
5 | 1999, 2000, 2001, 2002, 2004, 2005, 2007, 2008 |
6 | Free Software Foundation, Inc. | |
5bf970f9 AC |
7 | |
8 | This file is part of GDB. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
5bf970f9 AC |
13 | (at your option) any later version. |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
5bf970f9 AC |
22 | |
23 | #include "defs.h" | |
24 | #include "regcache.h" | |
25 | #include "memattr.h" | |
26 | #include "symtab.h" | |
27 | #include "target.h" | |
28 | #include "inferior.h" | |
7681f339 | 29 | #include "gdb_string.h" |
5bf970f9 AC |
30 | |
31 | /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this | |
32 | for all registers. */ | |
33 | ||
34 | static void | |
56be3814 | 35 | inf_child_fetch_inferior_registers (struct regcache *regcache, int regnum) |
5bf970f9 AC |
36 | { |
37 | if (regnum == -1) | |
38 | { | |
b1a653ae UW |
39 | for (regnum = 0; |
40 | regnum < gdbarch_num_regs (get_regcache_arch (regcache)); | |
41 | regnum++) | |
56be3814 | 42 | regcache_raw_supply (regcache, regnum, NULL); |
5bf970f9 AC |
43 | } |
44 | else | |
56be3814 | 45 | regcache_raw_supply (regcache, regnum, NULL); |
5bf970f9 AC |
46 | } |
47 | ||
48 | /* Store register REGNUM back into the inferior. If REGNUM is -1, do | |
49 | this for all registers (including the floating point registers). */ | |
50 | ||
51 | static void | |
56be3814 | 52 | inf_child_store_inferior_registers (struct regcache *regcache, int regnum) |
5bf970f9 AC |
53 | { |
54 | } | |
55 | ||
5bf970f9 AC |
56 | static void |
57 | inf_child_post_attach (int pid) | |
58 | { | |
59 | /* This version of Unix doesn't require a meaningful "post attach" | |
60 | operation by a debugger. */ | |
61 | } | |
62 | ||
63 | /* Get ready to modify the registers array. On machines which store | |
64 | individual registers, this doesn't need to do anything. On | |
65 | machines which store all the registers in one fell swoop, this | |
66 | makes sure that registers contains all the registers from the | |
67 | program being debugged. */ | |
68 | ||
69 | static void | |
316f2060 | 70 | inf_child_prepare_to_store (struct regcache *regcache) |
5bf970f9 AC |
71 | { |
72 | } | |
73 | ||
74 | static void | |
75 | inf_child_open (char *arg, int from_tty) | |
76 | { | |
8a3fe4f8 | 77 | error (_("Use the \"run\" command to start a Unix child process.")); |
5bf970f9 AC |
78 | } |
79 | ||
80 | static void | |
81 | inf_child_post_startup_inferior (ptid_t ptid) | |
82 | { | |
83 | /* This version of Unix doesn't require a meaningful "post startup | |
84 | inferior" operation by a debugger. */ | |
85 | } | |
86 | ||
87 | static void | |
88 | inf_child_acknowledge_created_inferior (int pid) | |
89 | { | |
90 | /* This version of Unix doesn't require a meaningful "acknowledge | |
91 | created inferior" operation by a debugger. */ | |
92 | } | |
93 | ||
fa113d1a | 94 | static void |
5bf970f9 AC |
95 | inf_child_insert_fork_catchpoint (int pid) |
96 | { | |
97 | /* This version of Unix doesn't support notification of fork | |
98 | events. */ | |
5bf970f9 AC |
99 | } |
100 | ||
101 | static int | |
102 | inf_child_remove_fork_catchpoint (int pid) | |
103 | { | |
104 | /* This version of Unix doesn't support notification of fork | |
105 | events. */ | |
106 | return 0; | |
107 | } | |
108 | ||
fa113d1a | 109 | static void |
5bf970f9 AC |
110 | inf_child_insert_vfork_catchpoint (int pid) |
111 | { | |
112 | /* This version of Unix doesn't support notification of vfork | |
113 | events. */ | |
5bf970f9 AC |
114 | } |
115 | ||
116 | static int | |
117 | inf_child_remove_vfork_catchpoint (int pid) | |
118 | { | |
119 | /* This version of Unix doesn't support notification of vfork | |
120 | events. */ | |
121 | return 0; | |
122 | } | |
123 | ||
124 | static int | |
ee057212 | 125 | inf_child_follow_fork (struct target_ops *ops, int follow_child) |
5bf970f9 AC |
126 | { |
127 | /* This version of Unix doesn't support following fork or vfork | |
128 | events. */ | |
129 | return 0; | |
130 | } | |
131 | ||
fa113d1a | 132 | static void |
5bf970f9 AC |
133 | inf_child_insert_exec_catchpoint (int pid) |
134 | { | |
135 | /* This version of Unix doesn't support notification of exec | |
136 | events. */ | |
5bf970f9 AC |
137 | } |
138 | ||
139 | static int | |
140 | inf_child_remove_exec_catchpoint (int pid) | |
141 | { | |
142 | /* This version of Unix doesn't support notification of exec | |
143 | events. */ | |
144 | return 0; | |
145 | } | |
146 | ||
5bf970f9 AC |
147 | static int |
148 | inf_child_can_run (void) | |
149 | { | |
150 | return 1; | |
151 | } | |
152 | ||
5bf970f9 AC |
153 | static char * |
154 | inf_child_pid_to_exec_file (int pid) | |
155 | { | |
156 | /* This version of Unix doesn't support translation of a process ID | |
157 | to the filename of the executable file. */ | |
158 | return NULL; | |
159 | } | |
160 | ||
5bf970f9 AC |
161 | struct target_ops * |
162 | inf_child_target (void) | |
163 | { | |
164 | struct target_ops *t = XZALLOC (struct target_ops); | |
165 | t->to_shortname = "child"; | |
166 | t->to_longname = "Unix child process"; | |
167 | t->to_doc = "Unix child process (started by the \"run\" command)."; | |
168 | t->to_open = inf_child_open; | |
169 | t->to_post_attach = inf_child_post_attach; | |
7681f339 AC |
170 | t->to_fetch_registers = inf_child_fetch_inferior_registers; |
171 | t->to_store_registers = inf_child_store_inferior_registers; | |
5bf970f9 AC |
172 | t->to_prepare_to_store = inf_child_prepare_to_store; |
173 | t->to_insert_breakpoint = memory_insert_breakpoint; | |
174 | t->to_remove_breakpoint = memory_remove_breakpoint; | |
175 | t->to_terminal_init = terminal_init_inferior; | |
176 | t->to_terminal_inferior = terminal_inferior; | |
177 | t->to_terminal_ours_for_output = terminal_ours_for_output; | |
178 | t->to_terminal_save_ours = terminal_save_ours; | |
179 | t->to_terminal_ours = terminal_ours; | |
180 | t->to_terminal_info = child_terminal_info; | |
181 | t->to_post_startup_inferior = inf_child_post_startup_inferior; | |
182 | t->to_acknowledge_created_inferior = inf_child_acknowledge_created_inferior; | |
183 | t->to_insert_fork_catchpoint = inf_child_insert_fork_catchpoint; | |
184 | t->to_remove_fork_catchpoint = inf_child_remove_fork_catchpoint; | |
185 | t->to_insert_vfork_catchpoint = inf_child_insert_vfork_catchpoint; | |
186 | t->to_remove_vfork_catchpoint = inf_child_remove_vfork_catchpoint; | |
187 | t->to_follow_fork = inf_child_follow_fork; | |
188 | t->to_insert_exec_catchpoint = inf_child_insert_exec_catchpoint; | |
189 | t->to_remove_exec_catchpoint = inf_child_remove_exec_catchpoint; | |
5bf970f9 | 190 | t->to_can_run = inf_child_can_run; |
5bf970f9 AC |
191 | t->to_pid_to_exec_file = inf_child_pid_to_exec_file; |
192 | t->to_stratum = process_stratum; | |
193 | t->to_has_all_memory = 1; | |
194 | t->to_has_memory = 1; | |
195 | t->to_has_stack = 1; | |
196 | t->to_has_registers = 1; | |
197 | t->to_has_execution = 1; | |
198 | t->to_magic = OPS_MAGIC; | |
199 | return t; | |
200 | } |