static ptid_t
gdbsim_wait (ptid_t ptid, struct target_waitstatus *status)
{
static RETSIGTYPE (*prev_sigint) ();
int sigrc = 0;
enum sim_stop reason = sim_running;
if (sr_get_debug ())
printf_filtered ("gdbsim_wait\n");
#if defined (HAVE_SIGACTION) && defined (SA_RESTART)
{
struct sigaction sa, osa;
sa.sa_handler = gdbsim_cntrl_c;
sigemptyset (&sa.sa_mask);
sa.sa_flags = 0;
sigaction (SIGINT, &sa, &osa);
prev_sigint = osa.sa_handler;
}
#else
prev_sigint = signal (SIGINT, gdbsim_cntrl_c);
#endif
sim_resume (gdbsim_desc, resume_step, resume_siggnal);
signal (SIGINT, prev_sigint);
resume_step = 0;
sim_stop_reason (gdbsim_desc, &reason, &sigrc);
switch (reason)
{
case sim_exited:
status->kind = TARGET_WAITKIND_EXITED;
status->value.integer = sigrc;
break;
case sim_stopped:
switch (sigrc)
{
case TARGET_SIGNAL_ABRT:
quit ();
break;
case TARGET_SIGNAL_INT:
case TARGET_SIGNAL_TRAP:
default:
status->kind = TARGET_WAITKIND_STOPPED;
status->value.sig = sigrc;
break;
}
break;
case sim_signalled:
status->kind = TARGET_WAITKIND_SIGNALLED;
status->value.sig = sigrc;
break;
case sim_running:
case sim_polling:
/* FIXME: Is this correct? */
break;
}
return inferior_ptid;
}
void
myresume (int step, int signo)
{
/* Should be using target_signal_to_host() or signal numbers in target.h
* to convert GDB signal number to target signal number.
*/
sim_resume (gdbsim_desc, step, signo);
}
int
create_inferior (char *program, char **argv)
{
bfd *abfd;
int pid = 0;
char **new_argv;
int nargs;
abfd = bfd_openr (program, 0);
if (!abfd)
{
fprintf (stderr, "gdbserver: cannot open %s: %s\n",
program, bfd_errmsg (bfd_get_error ()));
exit (1);
}
if (!bfd_check_format (abfd, bfd_object))
{
fprintf (stderr, "gdbserver: unknown load format for %s: %s\n",
program, bfd_errmsg (bfd_get_error ()));
exit (1);
}
/* Add "-E big" or "-E little" to the argument list depending on the
endianness of the program to be loaded. */
for (nargs = 0; argv[nargs] != NULL; nargs++) /* count the args */
;
new_argv = alloca (sizeof (char *) * (nargs + 3)); /* allocate new args */
for (nargs = 0; argv[nargs] != NULL; nargs++) /* copy old to new */
new_argv[nargs] = argv[nargs];
new_argv[nargs] = "-E";
new_argv[nargs + 1] = bfd_big_endian (abfd) ? "big" : "little";
new_argv[nargs + 2] = NULL;
argv = new_argv;
/* Create an instance of the simulator. */
default_callback.init (&default_callback);
gdbsim_desc = sim_open (SIM_OPEN_STANDALONE, &default_callback, abfd, argv);
if (gdbsim_desc == 0)
exit (1);
/* Load the program into the simulator. */
if (abfd)
if (sim_load (gdbsim_desc, program, NULL, 0) == SIM_RC_FAIL)
mygeneric_load (abfd);
/* Create an inferior process in the simulator. This initializes SP. */
sim_create_inferior (gdbsim_desc, abfd, argv, /* env */ NULL);
sim_resume (gdbsim_desc, 1, 0); /* execute one instr */
return pid;
}
int
main (int argc, char **argv)
{
char *name;
char **prog_argv = NULL;
struct bfd *prog_bfd;
enum sim_stop reason;
int sigrc = 0;
int single_step = 0;
RETSIGTYPE (*prev_sigint) ();
myname = argv[0] + strlen (argv[0]);
while (myname > argv[0] && myname[-1] != '/')
--myname;
/* INTERNAL: When MYNAME is `step', single step the simulator
instead of allowing it to run free. The sole purpose of this
HACK is to allow the sim_resume interface's step argument to be
tested without having to build/run gdb. */
if (strlen (myname) > 4 && strcmp (myname - 4, "step") == 0)
{
single_step = 1;
}
/* Create an instance of the simulator. */
default_callback.init (&default_callback);
sd = sim_open (SIM_OPEN_STANDALONE, &default_callback, NULL, argv);
if (sd == 0)
exit (1);
if (STATE_MAGIC (sd) != SIM_MAGIC_NUMBER)
{
fprintf (stderr, "Internal error - bad magic number in simulator struct\n");
abort ();
}
/* We can't set the endianness in the callback structure until
sim_config is called, which happens in sim_open. */
default_callback.target_endian
= (CURRENT_TARGET_BYTE_ORDER == BIG_ENDIAN
? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE);
/* Was there a program to run? */
prog_argv = STATE_PROG_ARGV (sd);
prog_bfd = STATE_PROG_BFD (sd);
if (prog_argv == NULL || *prog_argv == NULL)
usage ();
name = *prog_argv;
/* For simulators that don't open prog during sim_open() */
if (prog_bfd == NULL)
{
prog_bfd = bfd_openr (name, 0);
if (prog_bfd == NULL)
{
fprintf (stderr, "%s: can't open \"%s\": %s\n",
myname, name, bfd_errmsg (bfd_get_error ()));
exit (1);
}
if (!bfd_check_format (prog_bfd, bfd_object))
{
fprintf (stderr, "%s: \"%s\" is not an object file: %s\n",
myname, name, bfd_errmsg (bfd_get_error ()));
exit (1);
}
}
if (STATE_VERBOSE_P (sd))
printf ("%s %s\n", myname, name);
/* Load the program into the simulator. */
if (sim_load (sd, name, prog_bfd, 0) == SIM_RC_FAIL)
exit (1);
/* Prepare the program for execution. */
#ifdef HAVE_ENVIRON
sim_create_inferior (sd, prog_bfd, prog_argv, environ);
#else
sim_create_inferior (sd, prog_bfd, prog_argv, NULL);
#endif
/* To accommodate relative file paths, chdir to sysroot now. We
mustn't do this until BFD has opened the program, else we wouldn't
find the executable if it has a relative file path. */
if (simulator_sysroot[0] != '\0' && chdir (simulator_sysroot) < 0)
{
fprintf (stderr, "%s: can't change directory to \"%s\"\n",
myname, simulator_sysroot);
exit (1);
}
/* Run/Step the program. */
if (single_step)
{
do
{
prev_sigint = signal (SIGINT, cntrl_c);
sim_resume (sd, 1/*step*/, 0);
signal (SIGINT, prev_sigint);
sim_stop_reason (sd, &reason, &sigrc);
if ((reason == sim_stopped) &&
(sigrc == sim_signal_to_host (sd, SIM_SIGINT)))
break; /* exit on control-C */
}
/* remain on breakpoint or signals in oe mode*/
while (((reason == sim_signalled) &&
(sigrc == sim_signal_to_host (sd, SIM_SIGTRAP))) ||
((reason == sim_stopped) &&
(STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)));
}
else
{
do
{
#if defined (HAVE_SIGACTION) && defined (SA_RESTART)
struct sigaction sa, osa;
sa.sa_handler = cntrl_c;
sigemptyset (&sa.sa_mask);
sa.sa_flags = 0;
sigaction (SIGINT, &sa, &osa);
prev_sigint = osa.sa_handler;
#else
prev_sigint = signal (SIGINT, cntrl_c);
#endif
sim_resume (sd, 0, sigrc);
signal (SIGINT, prev_sigint);
sim_stop_reason (sd, &reason, &sigrc);
if ((reason == sim_stopped) &&
(sigrc == sim_signal_to_host (sd, SIM_SIGINT)))
break; /* exit on control-C */
/* remain on signals in oe mode */
} while ((reason == sim_stopped) &&
(STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT));
}
/* Print any stats the simulator collected. */
if (STATE_VERBOSE_P (sd))
sim_info (sd, 0);
/* Shutdown the simulator. */
sim_close (sd, 0);
/* If reason is sim_exited, then sigrc holds the exit code which we want
to return. If reason is sim_stopped or sim_signalled, then sigrc holds
the signal that the simulator received; we want to return that to
indicate failure. */
/* Why did we stop? */
switch (reason)
{
case sim_signalled:
case sim_stopped:
if (sigrc != 0)
fprintf (stderr, "program stopped with signal %d.\n", sigrc);
break;
case sim_exited:
break;
default:
fprintf (stderr, "program in undefined state (%d:%d)\n", reason, sigrc);
break;
}
return sigrc;
}
int
sim_trace (SIM_DESC sd)
{
sim_resume (sd, 0, 0);
return 1;
}
int
main (int argc, char **argv)
{
int ret;
sky_pref_t* pref = get_skyeye_pref();
assert(pref != NULL);
/* initialization of options from command line */
ret = init_option(argc, argv, pref);
/* set the current preference for skyeye */
//update_skyeye_pref(pref);
/* return non-zero represent not run skyeye */
if(ret != 0)
exit(0);
else
SIM_init();
/* Do anything you want to do , or just deadloop here. */
while(1)
;
#if 0
if(ret < 0)
goto exit_skyeye;
/* set some environment for running */
init_env();
/* initialization of all the data structure of simulation */
if((ret = init ()) < 0)
goto exit_skyeye;
#endif
#if 0
/* load elf file when running elf image */
if (exec_file) {
if (tea_load_exec (exec_file, 0)) {
fprintf (stderr, "load \"%s\" error\n", exec_file);
goto exit_skyeye;
}
#if !defined(__MINGW32__)
/* get its symbol to debug */
init_symbol_table(exec_file);
#endif
}
#endif
/* set the start address for pc */
#if 0
if (skyeye_config.start_address != 0){
unsigned long addr = (skyeye_config.start_address & load_mask)|load_base;
arch_instance->set_pc (addr);
printf ("start addr is set to 0x%08x by exec file.\n",
(unsigned int) addr);
}
#endif
/* never return */
//SIM_start();
//fflush(stdout);
#if 0
/* running simulaion */
if (remote_debugmode == 0)
sim_resume (0);
else{
printf ("remote_debugmode= %d, filename = %s, server TCP port is 12345\n",
remote_debugmode, skyeye_config_filename);
sim_debug ();
}
#endif
exit_skyeye:
return ret;
}