Commit | Line | Data |
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e20520b8 SG |
1 | /* Main code for remote server for GDB. |
2 | Copyright (C) 1989, 1993 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include <setjmp.h> | |
22 | #include <signal.h> | |
23 | ||
24 | void read_inferior_memory (); | |
25 | unsigned char mywait (); | |
26 | void myresume(); | |
27 | void initialize (); | |
28 | int create_inferior (); | |
29 | ||
30 | extern char registers[]; | |
31 | int inferior_pid; | |
32 | extern char **environ; | |
33 | ||
34 | /* Descriptor for I/O to remote machine. */ | |
35 | int remote_desc; | |
36 | int kiodebug = 0; | |
37 | int remote_debugging; | |
38 | ||
39 | void remote_send (); | |
40 | void putpkt (); | |
41 | void getpkt (); | |
42 | void remote_open (); | |
43 | void write_ok (); | |
44 | void write_enn (); | |
45 | void convert_ascii_to_int (); | |
46 | void convert_int_to_ascii (); | |
47 | void prepare_resume_reply (); | |
48 | void decode_m_packet (); | |
49 | void decode_M_packet (); | |
50 | jmp_buf toplevel; | |
51 | ||
52 | main (argc, argv) | |
53 | int argc; | |
54 | char *argv[]; | |
55 | { | |
56 | char ch, status, own_buf[2000], mem_buf[2000]; | |
57 | int i = 0; | |
58 | unsigned char signal; | |
59 | unsigned int mem_addr, len; | |
e20520b8 SG |
60 | |
61 | if (setjmp(toplevel)) | |
62 | { | |
63 | fprintf(stderr, "Exiting\n"); | |
64 | exit(1); | |
65 | } | |
66 | ||
67 | if (argc < 3) | |
68 | error("Usage: gdbserver tty prog [args ...]"); | |
69 | ||
70 | initialize (); | |
71 | remote_open (argv[1], 0); | |
72 | ||
f450d101 SG |
73 | inferior_pid = create_inferior (argv[2], &argv[2]); |
74 | fprintf (stderr, "Process %s created; pid = %d\n", argv[2], inferior_pid); | |
e20520b8 | 75 | |
f450d101 | 76 | signal = mywait (&status); /* Wait till we are at 1st instr in prog */ |
e20520b8 SG |
77 | |
78 | /* We are now stopped at the first instruction of the target process */ | |
79 | ||
80 | setjmp(toplevel); | |
81 | do | |
82 | { | |
83 | getpkt (own_buf); | |
84 | i = 0; | |
85 | ch = own_buf[i++]; | |
86 | switch (ch) | |
87 | { | |
88 | case '?': | |
89 | prepare_resume_reply (own_buf, status, signal); | |
90 | break; | |
91 | case 'g': | |
92 | convert_int_to_ascii (registers, own_buf, REGISTER_BYTES); | |
93 | break; | |
94 | case 'G': | |
95 | convert_ascii_to_int (&own_buf[1], registers, REGISTER_BYTES); | |
96 | store_inferior_registers (-1); | |
97 | write_ok (own_buf); | |
98 | break; | |
99 | case 'm': | |
100 | decode_m_packet (&own_buf[1], &mem_addr, &len); | |
101 | read_inferior_memory (mem_addr, mem_buf, len); | |
102 | convert_int_to_ascii (mem_buf, own_buf, len); | |
103 | break; | |
104 | case 'M': | |
105 | decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf); | |
106 | if (write_inferior_memory (mem_addr, mem_buf, len) == 0) | |
107 | write_ok (own_buf); | |
108 | else | |
109 | write_enn (own_buf); | |
110 | break; | |
111 | case 'c': | |
112 | myresume (0, 0); | |
113 | signal = mywait (&status); | |
114 | prepare_resume_reply (own_buf, status, signal); | |
115 | break; | |
116 | case 's': | |
117 | myresume (1, 0); | |
118 | signal = mywait (&status); | |
119 | prepare_resume_reply (own_buf, status, signal); | |
120 | break; | |
121 | case 'k': | |
122 | kill_inferior (); | |
123 | sprintf (own_buf, "q"); | |
124 | putpkt (own_buf); | |
125 | fprintf (stderr, "Obtained kill request...terminating\n"); | |
126 | close (remote_desc); | |
127 | exit (0); | |
128 | default: | |
129 | printf ("\nUnknown option chosen by master\n"); | |
130 | write_enn (own_buf); | |
131 | break; | |
132 | } | |
133 | ||
134 | putpkt (own_buf); | |
135 | } | |
136 | while (1); | |
137 | ||
138 | close (remote_desc); | |
139 | /** now get out of here**/ | |
140 | fprintf (stderr, "Finished reading data from serial link - Bye!\n"); | |
141 | exit (0); | |
142 | } |