diff options
Diffstat (limited to 'gdb/gdbserver/server.c')
| -rw-r--r-- | gdb/gdbserver/server.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/gdb/gdbserver/server.c b/gdb/gdbserver/server.c new file mode 100644 index 00000000000..a38fda6fbc2 --- /dev/null +++ b/gdb/gdbserver/server.c @@ -0,0 +1,118 @@ +/* Main code for remote server for GDB. + Copyright (C) 1989, 1993 Free Software Foundation, Inc. + +This file is part of GDB. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include "server.h" + +main (argc, argv) + int argc; + char *argv[]; +{ + char ch, status, own_buf[2000], mem_buf[2000]; + int i = 0; + unsigned char signal; + unsigned int mem_addr, len; + + if (setjmp(toplevel)) + { + fprintf(stderr, "Exiting\n"); + exit(1); + } + + if (argc < 3) + error("Usage: gdbserver tty prog [args ...]"); + + inferior_pid = create_inferior (argv[2], &argv[2]); + fprintf (stderr, "Process %s created; pid = %d\n", argv[2], inferior_pid); + + signal = mywait (&status); /* Wait till we are at 1st instr in prog */ + + /* We are now stopped at the first instruction of the target process */ + + while (1) + { + remote_open (argv[1]); + + setjmp(toplevel); + while (getpkt (own_buf) > 0) + { + i = 0; + ch = own_buf[i++]; + switch (ch) + { + case '?': + prepare_resume_reply (own_buf, status, signal); + break; + case 'g': + convert_int_to_ascii (registers, own_buf, REGISTER_BYTES); + break; + case 'G': + convert_ascii_to_int (&own_buf[1], registers, REGISTER_BYTES); + store_inferior_registers (-1); + write_ok (own_buf); + break; + case 'm': + decode_m_packet (&own_buf[1], &mem_addr, &len); + read_inferior_memory (mem_addr, mem_buf, len); + convert_int_to_ascii (mem_buf, own_buf, len); + break; + case 'M': + decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf); + if (write_inferior_memory (mem_addr, mem_buf, len) == 0) + write_ok (own_buf); + else + write_enn (own_buf); + break; + case 'c': + myresume (0, 0); + signal = mywait (&status); + prepare_resume_reply (own_buf, status, signal); + break; + case 's': + myresume (1, 0); + signal = mywait (&status); + prepare_resume_reply (own_buf, status, signal); + break; + case 'k': + fprintf (stderr, "Killing inferior\n"); + kill_inferior (); + inferior_pid = create_inferior (argv[2], &argv[2]); + fprintf (stderr, "Process %s created; pid = %d\n", argv[2], + inferior_pid); + signal = mywait (&status); /* Wait till we are at 1st instr in prog */ + break; + case 'q': + own_buf[0] = '\0'; + break; + default: + printf ("\nUnknown option chosen by master\n"); + write_enn (own_buf); + break; + } + + putpkt (own_buf); + } + + /* We come here when getpkt fails. Close the connection, and re-open it + at the top of the loop. */ + + fprintf (stderr, "Remote side has terminated connection. GDBserver will reopen the connection.\n"); + + remote_close (); + } +} |