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/* This file is part of the program psim.
Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdarg.h>
#include <stdio.h>
#include "psim.h"
#include "function_unit.h"
#include "options.h"
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#endif
extern char **environ;
extern char *optarg;
extern int optind;
extern int optopt;
extern int opterr;
void
printf_filtered(const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
vprintf(msg, ap);
va_end(ap);
}
void
error (char *msg, ...)
{
va_list ap;
va_start(ap, msg);
vprintf(msg, ap);
va_end(ap);
exit (1);
}
void *
zalloc(long size)
{
void *memory = malloc(size);
if (memory == NULL)
error("zmalloc failed\n");
memset(memory, 0, size);
return memory;
}
void
zfree(void *chunk)
{
free(chunk);
}
static void
usage(void)
{
printf_filtered("Usage:\n\tpsim [ -t <trace-option> ] [-m model] [-i] [-I] <image> [ <image-args> ... ]\n");
trace_usage();
error("");
}
int
main(int argc, char **argv)
{
psim *system;
const char *name_of_file;
char *arg_;
psim_status status;
int letter;
int print_info = 0;
/* check for arguments -- note sim_calls.c also contains argument processing
code for the simulator linked within gdb. */
while ((letter = getopt (argc, argv, "Iim:t:")) != EOF)
{
switch (letter) {
case 't':
trace_option(optarg);
break;
case 'm':
model_set(optarg);
break;
case 'i':
print_info = 1;
break;
case 'I':
print_info = 2;
break;
default:
usage();
}
}
if (optind >= argc)
usage();
name_of_file = argv[optind];
if (ppc_trace[trace_opts])
print_options ();
/* create the simulator */
system = psim_create(name_of_file);
/* fudge the environment so that _=prog-name */
arg_ = (char*)zalloc(strlen(argv[optind]) + strlen("_=") + 1);
strcpy(arg_, "_=");
strcat(arg_, argv[optind]);
putenv(arg_);
/* initialize it */
psim_init(system);
psim_stack(system, &argv[optind], environ);
psim_run(system);
/* any final clean up */
if (print_info)
psim_print_info (system, print_info);
/* why did we stop */
status = psim_get_status(system);
switch (status.reason) {
case was_continuing:
error("psim: continuing while stoped!\n");
return 0;
case was_trap:
error("psim: no trap insn\n");
return 0;
case was_exited:
return status.signal;
case was_signalled:
printf ("%s: Caught signal %d at address 0x%lx\n",
name_of_file, (int)status.signal,
(long)status.program_counter);
return status.signal;
default:
error("unknown halt condition\n");
return 0;
}
}
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