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ce3a066d | 1 | /* Target operations for the remote server for GDB. |
a1928bad | 2 | Copyright 2002, 2003, 2004, 2005 |
ce3a066d DJ |
3 | Free Software Foundation, Inc. |
4 | ||
5 | Contributed by MontaVista Software. | |
6 | ||
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
23 | ||
24 | #ifndef TARGET_H | |
25 | #define TARGET_H | |
26 | ||
64386c31 DJ |
27 | /* This structure describes how to resume a particular thread (or |
28 | all threads) based on the client's request. If thread is -1, then | |
29 | this entry applies to all threads. These are generally passed around | |
30 | as an array, and terminated by a thread == -1 entry. */ | |
31 | ||
32 | struct thread_resume | |
33 | { | |
a1928bad | 34 | unsigned long thread; |
64386c31 DJ |
35 | |
36 | /* If non-zero, leave this thread stopped. */ | |
37 | int leave_stopped; | |
38 | ||
39 | /* If non-zero, we want to single-step. */ | |
40 | int step; | |
41 | ||
42 | /* If non-zero, send this signal when we resume. */ | |
43 | int sig; | |
44 | }; | |
45 | ||
ce3a066d DJ |
46 | struct target_ops |
47 | { | |
48 | /* Start a new process. | |
49 | ||
50 | PROGRAM is a path to the program to execute. | |
51 | ARGS is a standard NULL-terminated array of arguments, | |
52 | to be passed to the inferior as ``argv''. | |
53 | ||
a9fa9f7d | 54 | Returns the new PID on success, -1 on failure. Registers the new |
ce3a066d DJ |
55 | process with the process list. */ |
56 | ||
57 | int (*create_inferior) (char *program, char **args); | |
58 | ||
59 | /* Attach to a running process. | |
60 | ||
61 | PID is the process ID to attach to, specified by the user | |
62 | or a higher layer. */ | |
63 | ||
a1928bad | 64 | int (*attach) (unsigned long pid); |
ce3a066d DJ |
65 | |
66 | /* Kill all inferiors. */ | |
67 | ||
68 | void (*kill) (void); | |
69 | ||
6ad8ae5c DJ |
70 | /* Detach from all inferiors. */ |
71 | ||
72 | void (*detach) (void); | |
73 | ||
ce3a066d DJ |
74 | /* Return 1 iff the thread with process ID PID is alive. */ |
75 | ||
a1928bad | 76 | int (*thread_alive) (unsigned long pid); |
ce3a066d | 77 | |
64386c31 | 78 | /* Resume the inferior process. */ |
ce3a066d | 79 | |
64386c31 | 80 | void (*resume) (struct thread_resume *resume_info); |
ce3a066d DJ |
81 | |
82 | /* Wait for the inferior process to change state. | |
83 | ||
84 | STATUSP will be filled in with a response code to send to GDB. | |
85 | ||
86 | Returns the signal which caused the process to stop. */ | |
87 | ||
88 | unsigned char (*wait) (char *status); | |
89 | ||
90 | /* Fetch registers from the inferior process. | |
91 | ||
92 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
93 | ||
94 | void (*fetch_registers) (int regno); | |
aa691b87 | 95 | |
ce3a066d DJ |
96 | /* Store registers to the inferior process. |
97 | ||
98 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
99 | ||
100 | void (*store_registers) (int regno); | |
101 | ||
611cb4a5 DJ |
102 | /* Read memory from the inferior process. This should generally be |
103 | called through read_inferior_memory, which handles breakpoint shadowing. | |
ce3a066d | 104 | |
c3e735a6 DJ |
105 | Read LEN bytes at MEMADDR into a buffer at MYADDR. |
106 | ||
107 | Returns 0 on success and errno on failure. */ | |
ce3a066d | 108 | |
c3e735a6 | 109 | int (*read_memory) (CORE_ADDR memaddr, char *myaddr, int len); |
ce3a066d | 110 | |
611cb4a5 DJ |
111 | /* Write memory to the inferior process. This should generally be |
112 | called through write_inferior_memory, which handles breakpoint shadowing. | |
ce3a066d DJ |
113 | |
114 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
115 | ||
116 | Returns 0 on success and errno on failure. */ | |
117 | ||
611cb4a5 | 118 | int (*write_memory) (CORE_ADDR memaddr, const char *myaddr, int len); |
2f2893d9 DJ |
119 | |
120 | /* Query GDB for the values of any symbols we're interested in. | |
121 | This function is called whenever we receive a "qSymbols::" | |
122 | query, which corresponds to every time more symbols (might) | |
611cb4a5 DJ |
123 | become available. NULL if we aren't interested in any |
124 | symbols. */ | |
2f2893d9 DJ |
125 | |
126 | void (*look_up_symbols) (void); | |
e5379b03 DJ |
127 | |
128 | /* Send a signal to the inferior process, however is appropriate. */ | |
129 | void (*send_signal) (int); | |
aa691b87 RM |
130 | |
131 | /* Read auxiliary vector data from the inferior process. | |
132 | ||
133 | Read LEN bytes at OFFSET into a buffer at MYADDR. */ | |
134 | ||
135 | int (*read_auxv) (CORE_ADDR offset, char *myaddr, unsigned int len); | |
ce3a066d DJ |
136 | }; |
137 | ||
138 | extern struct target_ops *the_target; | |
139 | ||
140 | void set_target_ops (struct target_ops *); | |
141 | ||
142 | #define create_inferior(program, args) \ | |
143 | (*the_target->create_inferior) (program, args) | |
144 | ||
145 | #define myattach(pid) \ | |
146 | (*the_target->attach) (pid) | |
147 | ||
148 | #define kill_inferior() \ | |
149 | (*the_target->kill) () | |
150 | ||
6ad8ae5c DJ |
151 | #define detach_inferior() \ |
152 | (*the_target->detach) () | |
153 | ||
ce3a066d DJ |
154 | #define mythread_alive(pid) \ |
155 | (*the_target->thread_alive) (pid) | |
156 | ||
ce3a066d DJ |
157 | #define fetch_inferior_registers(regno) \ |
158 | (*the_target->fetch_registers) (regno) | |
159 | ||
160 | #define store_inferior_registers(regno) \ | |
161 | (*the_target->store_registers) (regno) | |
162 | ||
0d62e5e8 DJ |
163 | unsigned char mywait (char *statusp, int connected_wait); |
164 | ||
c3e735a6 | 165 | int read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len); |
ce3a066d | 166 | |
0d62e5e8 DJ |
167 | int write_inferior_memory (CORE_ADDR memaddr, const char *myaddr, int len); |
168 | ||
169 | void set_desired_inferior (int id); | |
ce3a066d DJ |
170 | |
171 | #endif /* TARGET_H */ |