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/* main.c --- main function for stand-alone M32C simulator.
Copyright (C) 2005-2021 Free Software Foundation, Inc.
Contributed by Red Hat, Inc.
This file is part of the GNU simulators.
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 3 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, see <http://www.gnu.org/licenses/>. */
/* This must come before any other includes. */
#include "defs.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <assert.h>
#include <setjmp.h>
#include <signal.h>
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
#ifdef HAVE_NETINET_IN_H
#ifdef HAVE_NETINET_TCP_H
#define HAVE_networking
#endif
#endif
#endif
#ifdef HAVE_networking
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#endif
#include "bfd.h"
#include "cpu.h"
#include "mem.h"
#include "misc.h"
#include "load.h"
#include "trace.h"
#ifdef TIMER_A
#include "int.h"
#include "timer_a.h"
#endif
#ifdef HAVE_networking
extern int m32c_console_ofd;
extern int m32c_console_ifd;
#endif
int m32c_disassemble = 0;
static unsigned int cycles = 0;
static void
done (int exit_code)
{
if (verbose)
{
stack_heap_stats ();
mem_usage_stats ();
printf ("insns: %14s\n", comma (cycles));
}
exit (exit_code);
}
#ifdef HAVE_networking
static void
setup_tcp_console (char *portname)
{
int port = atoi (portname);
struct sockaddr_in address;
int isocket;
socklen_t as;
unsigned char *a;
if (port < 1024)
{
printf ("invalid port number %d\n", port);
exit (1);
}
printf ("waiting for tcp console on port %d\n", port);
memset (&address, 0, sizeof (address));
address.sin_family = AF_INET;
address.sin_port = htons (port);
isocket = socket (AF_INET, SOCK_STREAM, 0);
if (isocket == -1)
{
perror ("socket");
exit (1);
}
if (bind (isocket, (struct sockaddr *) &address, sizeof (address)))
{
perror ("bind");
exit (1);
}
listen (isocket, 2);
printf ("waiting for connection...\n");
as = sizeof (address);
m32c_console_ifd = accept (isocket, (struct sockaddr *) &address, &as);
if (m32c_console_ifd == -1)
{
perror ("accept");
exit (1);
}
a = (unsigned char *) (&address.sin_addr.s_addr);
printf ("connection from %d.%d.%d.%d\n", a[0], a[1], a[2], a[3]);
m32c_console_ofd = m32c_console_ifd;
}
#endif
int
main (int argc, char **argv)
{
int o;
int save_trace;
bfd *prog;
#ifdef HAVE_networking
char *console_port_s = 0;
#endif
setbuf (stdout, 0);
in_gdb = 0;
while ((o = getopt (argc, argv, "tc:vdm:C")) != -1)
switch (o)
{
case 't':
trace++;
break;
case 'c':
#ifdef HAVE_networking
console_port_s = optarg;
#else
fprintf (stderr, "Nework console not available in this build.\n");
#endif
break;
case 'C':
#ifdef HAVE_TERMIOS_H
m32c_use_raw_console = 1;
#else
fprintf (stderr, "Raw console not available in this build.\n");
#endif
break;
case 'v':
verbose++;
break;
case 'd':
m32c_disassemble++;
break;
case 'm':
if (strcmp (optarg, "r8c") == 0 || strcmp (optarg, "m16c") == 0)
default_machine = bfd_mach_m16c;
else if (strcmp (optarg, "m32cm") == 0
|| strcmp (optarg, "m32c") == 0)
default_machine = bfd_mach_m32c;
else
{
fprintf (stderr, "Invalid machine: %s\n", optarg);
exit (1);
}
break;
case '?':
fprintf (stderr,
"usage: run [-v] [-C] [-c port] [-t] [-d] [-m r8c|m16c|m32cm|m32c]"
" program\n");
exit (1);
}
prog = bfd_openr (argv[optind], 0);
if (!prog)
{
fprintf (stderr, "Can't read %s\n", argv[optind]);
exit (1);
}
if (!bfd_check_format (prog, bfd_object))
{
fprintf (stderr, "%s not a m32c program\n", argv[optind]);
exit (1);
}
save_trace = trace;
trace = 0;
m32c_load (prog);
trace = save_trace;
#ifdef HAVE_networking
if (console_port_s)
setup_tcp_console (console_port_s);
#endif
sim_disasm_init (prog);
while (1)
{
int rc;
if (trace)
printf ("\n");
if (m32c_disassemble)
sim_disasm_one ();
enable_counting = verbose;
cycles++;
rc = decode_opcode ();
enable_counting = 0;
if (M32C_HIT_BREAK (rc))
done (1);
else if (M32C_EXITED (rc))
done (M32C_EXIT_STATUS (rc));
else
assert (M32C_STEPPED (rc));
trace_register_changes ();
#ifdef TIMER_A
update_timer_a ();
#endif
}
}
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