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1 | /* Target operations for the remote server for GDB. |
2 | Copyright 2002 | |
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 | ||
27 | struct target_ops | |
28 | { | |
29 | /* Start a new process. | |
30 | ||
31 | PROGRAM is a path to the program to execute. | |
32 | ARGS is a standard NULL-terminated array of arguments, | |
33 | to be passed to the inferior as ``argv''. | |
34 | ||
a9fa9f7d | 35 | Returns the new PID on success, -1 on failure. Registers the new |
ce3a066d DJ |
36 | process with the process list. */ |
37 | ||
38 | int (*create_inferior) (char *program, char **args); | |
39 | ||
40 | /* Attach to a running process. | |
41 | ||
42 | PID is the process ID to attach to, specified by the user | |
43 | or a higher layer. */ | |
44 | ||
45 | int (*attach) (int pid); | |
46 | ||
47 | /* Kill all inferiors. */ | |
48 | ||
49 | void (*kill) (void); | |
50 | ||
51 | /* Return 1 iff the thread with process ID PID is alive. */ | |
52 | ||
53 | int (*thread_alive) (int pid); | |
54 | ||
55 | /* Resume the inferior process. | |
56 | ||
57 | If STEP is non-zero, we want to single-step. | |
58 | ||
59 | If SIGNAL is nonzero, send the process that signal as we resume it. | |
60 | */ | |
61 | ||
62 | void (*resume) (int step, int signo); | |
63 | ||
64 | /* Wait for the inferior process to change state. | |
65 | ||
66 | STATUSP will be filled in with a response code to send to GDB. | |
67 | ||
68 | Returns the signal which caused the process to stop. */ | |
69 | ||
70 | unsigned char (*wait) (char *status); | |
71 | ||
72 | /* Fetch registers from the inferior process. | |
73 | ||
74 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
75 | ||
76 | void (*fetch_registers) (int regno); | |
77 | ||
78 | /* Store registers to the inferior process. | |
79 | ||
80 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
81 | ||
82 | void (*store_registers) (int regno); | |
83 | ||
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84 | /* Read memory from the inferior process. This should generally be |
85 | called through read_inferior_memory, which handles breakpoint shadowing. | |
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86 | |
87 | Read LEN bytes at MEMADDR into a buffer at MYADDR. */ | |
88 | ||
89 | void (*read_memory) (CORE_ADDR memaddr, char *myaddr, int len); | |
90 | ||
611cb4a5 DJ |
91 | /* Write memory to the inferior process. This should generally be |
92 | called through write_inferior_memory, which handles breakpoint shadowing. | |
ce3a066d DJ |
93 | |
94 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
95 | ||
96 | Returns 0 on success and errno on failure. */ | |
97 | ||
611cb4a5 | 98 | int (*write_memory) (CORE_ADDR memaddr, const char *myaddr, int len); |
2f2893d9 DJ |
99 | |
100 | /* Query GDB for the values of any symbols we're interested in. | |
101 | This function is called whenever we receive a "qSymbols::" | |
102 | query, which corresponds to every time more symbols (might) | |
611cb4a5 DJ |
103 | become available. NULL if we aren't interested in any |
104 | symbols. */ | |
2f2893d9 DJ |
105 | |
106 | void (*look_up_symbols) (void); | |
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107 | }; |
108 | ||
109 | extern struct target_ops *the_target; | |
110 | ||
111 | void set_target_ops (struct target_ops *); | |
112 | ||
113 | #define create_inferior(program, args) \ | |
114 | (*the_target->create_inferior) (program, args) | |
115 | ||
116 | #define myattach(pid) \ | |
117 | (*the_target->attach) (pid) | |
118 | ||
119 | #define kill_inferior() \ | |
120 | (*the_target->kill) () | |
121 | ||
122 | #define mythread_alive(pid) \ | |
123 | (*the_target->thread_alive) (pid) | |
124 | ||
125 | #define myresume(step,signo) \ | |
126 | (*the_target->resume) (step, signo) | |
127 | ||
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128 | #define fetch_inferior_registers(regno) \ |
129 | (*the_target->fetch_registers) (regno) | |
130 | ||
131 | #define store_inferior_registers(regno) \ | |
132 | (*the_target->store_registers) (regno) | |
133 | ||
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134 | unsigned char mywait (char *statusp, int connected_wait); |
135 | ||
611cb4a5 | 136 | void read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len); |
ce3a066d | 137 | |
0d62e5e8 DJ |
138 | int write_inferior_memory (CORE_ADDR memaddr, const char *myaddr, int len); |
139 | ||
140 | void set_desired_inferior (int id); | |
ce3a066d DJ |
141 | |
142 | #endif /* TARGET_H */ |