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ab18bba0 PS |
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 "server.h" | |
21 | ||
22 | main (argc, argv) | |
23 | int argc; | |
24 | char *argv[]; | |
25 | { | |
26 | char ch, status, own_buf[2000], mem_buf[2000]; | |
27 | int i = 0; | |
28 | unsigned char signal; | |
29 | unsigned int mem_addr, len; | |
30 | ||
31 | if (setjmp(toplevel)) | |
32 | { | |
33 | fprintf(stderr, "Exiting\n"); | |
34 | exit(1); | |
35 | } | |
36 | ||
37 | if (argc < 3) | |
38 | error("Usage: gdbserver tty prog [args ...]"); | |
39 | ||
40 | inferior_pid = create_inferior (argv[2], &argv[2]); | |
41 | fprintf (stderr, "Process %s created; pid = %d\n", argv[2], inferior_pid); | |
42 | ||
43 | signal = mywait (&status); /* Wait till we are at 1st instr in prog */ | |
44 | ||
45 | /* We are now stopped at the first instruction of the target process */ | |
46 | ||
47 | while (1) | |
48 | { | |
49 | remote_open (argv[1]); | |
50 | ||
51 | setjmp(toplevel); | |
52 | while (getpkt (own_buf) > 0) | |
53 | { | |
54 | i = 0; | |
55 | ch = own_buf[i++]; | |
56 | switch (ch) | |
57 | { | |
58 | case '?': | |
59 | prepare_resume_reply (own_buf, status, signal); | |
60 | break; | |
61 | case 'g': | |
62 | convert_int_to_ascii (registers, own_buf, REGISTER_BYTES); | |
63 | break; | |
64 | case 'G': | |
65 | convert_ascii_to_int (&own_buf[1], registers, REGISTER_BYTES); | |
66 | store_inferior_registers (-1); | |
67 | write_ok (own_buf); | |
68 | break; | |
69 | case 'm': | |
70 | decode_m_packet (&own_buf[1], &mem_addr, &len); | |
71 | read_inferior_memory (mem_addr, mem_buf, len); | |
72 | convert_int_to_ascii (mem_buf, own_buf, len); | |
73 | break; | |
74 | case 'M': | |
75 | decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf); | |
76 | if (write_inferior_memory (mem_addr, mem_buf, len) == 0) | |
77 | write_ok (own_buf); | |
78 | else | |
79 | write_enn (own_buf); | |
80 | break; | |
81 | case 'c': | |
82 | myresume (0, 0); | |
83 | signal = mywait (&status); | |
84 | prepare_resume_reply (own_buf, status, signal); | |
85 | break; | |
86 | case 's': | |
87 | myresume (1, 0); | |
88 | signal = mywait (&status); | |
89 | prepare_resume_reply (own_buf, status, signal); | |
90 | break; | |
91 | case 'k': | |
92 | fprintf (stderr, "Killing inferior\n"); | |
93 | kill_inferior (); | |
94 | inferior_pid = create_inferior (argv[2], &argv[2]); | |
95 | fprintf (stderr, "Process %s created; pid = %d\n", argv[2], | |
96 | inferior_pid); | |
97 | signal = mywait (&status); /* Wait till we are at 1st instr in prog */ | |
98 | break; | |
99 | case 'q': | |
100 | own_buf[0] = '\0'; | |
101 | break; | |
102 | default: | |
103 | printf ("\nUnknown option chosen by master\n"); | |
104 | write_enn (own_buf); | |
105 | break; | |
106 | } | |
107 | ||
108 | putpkt (own_buf); | |
109 | } | |
110 | ||
111 | /* We come here when getpkt fails. Close the connection, and re-open it | |
112 | at the top of the loop. */ | |
113 | ||
114 | fprintf (stderr, "Remote side has terminated connection. GDBserver will reopen the connection.\n"); | |
115 | ||
116 | remote_close (); | |
117 | } | |
118 | } |