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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, |
7b6bb8da | 5 | 1999, 2000, 2001, 2002, 2004, 2005, 2007, 2008, 2009, 2010, 2011 |
9b254dd1 | 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" |
2c0b251b | 30 | #include "inf-child.h" |
5bf970f9 AC |
31 | |
32 | /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this | |
33 | for all registers. */ | |
34 | ||
35 | static void | |
28439f5e PA |
36 | inf_child_fetch_inferior_registers (struct target_ops *ops, |
37 | struct regcache *regcache, int regnum) | |
5bf970f9 AC |
38 | { |
39 | if (regnum == -1) | |
40 | { | |
b1a653ae UW |
41 | for (regnum = 0; |
42 | regnum < gdbarch_num_regs (get_regcache_arch (regcache)); | |
43 | regnum++) | |
56be3814 | 44 | regcache_raw_supply (regcache, regnum, NULL); |
5bf970f9 AC |
45 | } |
46 | else | |
56be3814 | 47 | regcache_raw_supply (regcache, regnum, NULL); |
5bf970f9 AC |
48 | } |
49 | ||
50 | /* Store register REGNUM back into the inferior. If REGNUM is -1, do | |
51 | this for all registers (including the floating point registers). */ | |
52 | ||
53 | static void | |
28439f5e PA |
54 | inf_child_store_inferior_registers (struct target_ops *ops, |
55 | struct regcache *regcache, int regnum) | |
5bf970f9 AC |
56 | { |
57 | } | |
58 | ||
5bf970f9 AC |
59 | static void |
60 | inf_child_post_attach (int pid) | |
61 | { | |
62 | /* This version of Unix doesn't require a meaningful "post attach" | |
63 | operation by a debugger. */ | |
64 | } | |
65 | ||
66 | /* Get ready to modify the registers array. On machines which store | |
67 | individual registers, this doesn't need to do anything. On | |
68 | machines which store all the registers in one fell swoop, this | |
69 | makes sure that registers contains all the registers from the | |
70 | program being debugged. */ | |
71 | ||
72 | static void | |
316f2060 | 73 | inf_child_prepare_to_store (struct regcache *regcache) |
5bf970f9 AC |
74 | { |
75 | } | |
76 | ||
77 | static void | |
78 | inf_child_open (char *arg, int from_tty) | |
79 | { | |
8a3fe4f8 | 80 | error (_("Use the \"run\" command to start a Unix child process.")); |
5bf970f9 AC |
81 | } |
82 | ||
83 | static void | |
84 | inf_child_post_startup_inferior (ptid_t ptid) | |
85 | { | |
86 | /* This version of Unix doesn't require a meaningful "post startup | |
87 | inferior" operation by a debugger. */ | |
88 | } | |
89 | ||
5bf970f9 | 90 | static int |
ee057212 | 91 | inf_child_follow_fork (struct target_ops *ops, int follow_child) |
5bf970f9 AC |
92 | { |
93 | /* This version of Unix doesn't support following fork or vfork | |
94 | events. */ | |
95 | return 0; | |
96 | } | |
97 | ||
5bf970f9 AC |
98 | static int |
99 | inf_child_can_run (void) | |
100 | { | |
101 | return 1; | |
102 | } | |
103 | ||
5bf970f9 AC |
104 | static char * |
105 | inf_child_pid_to_exec_file (int pid) | |
106 | { | |
107 | /* This version of Unix doesn't support translation of a process ID | |
108 | to the filename of the executable file. */ | |
109 | return NULL; | |
110 | } | |
111 | ||
5bf970f9 AC |
112 | struct target_ops * |
113 | inf_child_target (void) | |
114 | { | |
115 | struct target_ops *t = XZALLOC (struct target_ops); | |
abbb1732 | 116 | |
5bf970f9 AC |
117 | t->to_shortname = "child"; |
118 | t->to_longname = "Unix child process"; | |
119 | t->to_doc = "Unix child process (started by the \"run\" command)."; | |
120 | t->to_open = inf_child_open; | |
121 | t->to_post_attach = inf_child_post_attach; | |
7681f339 AC |
122 | t->to_fetch_registers = inf_child_fetch_inferior_registers; |
123 | t->to_store_registers = inf_child_store_inferior_registers; | |
5bf970f9 AC |
124 | t->to_prepare_to_store = inf_child_prepare_to_store; |
125 | t->to_insert_breakpoint = memory_insert_breakpoint; | |
126 | t->to_remove_breakpoint = memory_remove_breakpoint; | |
127 | t->to_terminal_init = terminal_init_inferior; | |
128 | t->to_terminal_inferior = terminal_inferior; | |
129 | t->to_terminal_ours_for_output = terminal_ours_for_output; | |
130 | t->to_terminal_save_ours = terminal_save_ours; | |
131 | t->to_terminal_ours = terminal_ours; | |
132 | t->to_terminal_info = child_terminal_info; | |
133 | t->to_post_startup_inferior = inf_child_post_startup_inferior; | |
5bf970f9 | 134 | t->to_follow_fork = inf_child_follow_fork; |
5bf970f9 | 135 | t->to_can_run = inf_child_can_run; |
5bf970f9 AC |
136 | t->to_pid_to_exec_file = inf_child_pid_to_exec_file; |
137 | t->to_stratum = process_stratum; | |
c35b1492 PA |
138 | t->to_has_all_memory = default_child_has_all_memory; |
139 | t->to_has_memory = default_child_has_memory; | |
140 | t->to_has_stack = default_child_has_stack; | |
141 | t->to_has_registers = default_child_has_registers; | |
142 | t->to_has_execution = default_child_has_execution; | |
5bf970f9 AC |
143 | t->to_magic = OPS_MAGIC; |
144 | return t; | |
145 | } |