void reset_cpu(ulong ignored)
{
if (state_uninit())
os_exit(2);
if (dm_uninit())
os_exit(2);
/* This is considered normal termination for now */
os_exit(0);
}
void sandbox_exit(void)
{
/* Do this here while it still has an effect */
os_fd_restore();
if (state_uninit())
os_exit(2);
if (dm_uninit())
os_exit(2);
/* This is considered normal termination for now */
os_exit(0);
}
int sandbox_early_getopt_check(void)
{
struct sandbox_state *state = state_get_current();
struct sandbox_cmdline_option **sb_opt = __u_boot_sandbox_option_start;
size_t num_options = __u_boot_sandbox_option_count();
size_t i;
int max_arg_len, max_noarg_len;
/* parse_err will be a string of the faulting option */
if (!state->parse_err)
return 0;
if (strcmp(state->parse_err, "help")) {
printf("u-boot: error: failed while parsing option: %s\n"
"\ttry running with --help for more information.\n",
state->parse_err);
os_exit(1);
}
printf(
"u-boot, a command line test interface to U-Boot\n\n"
"Usage: u-boot [options]\n"
"Options:\n");
max_arg_len = 0;
for (i = 0; i < num_options; ++i)
max_arg_len = max((int)strlen(sb_opt[i]->flag), max_arg_len);
max_noarg_len = max_arg_len + 7;
for (i = 0; i < num_options; ++i) {
struct sandbox_cmdline_option *opt = sb_opt[i];
/* first output the short flag if it has one */
if (opt->flag_short >= 0x100)
printf(" ");
else
printf(" -%c, ", opt->flag_short);
/* then the long flag */
if (opt->has_arg)
printf("--%-*s <arg> ", max_arg_len, opt->flag);
else
printf("--%-*s", max_noarg_len, opt->flag);
/* finally the help text */
printf(" %s\n", opt->help);
}
os_exit(0);
}
void
__start(void)
{
int argc;
char *ro_args, *args, **argv;
/* Clear BSS */
memset(edata, 0, end - edata);
/* Define heap. */
setheap(end, (void *)(HIMEM - 0x1000));
ro_args = os_get_env(NULL, NULL);
args = alloc(strlen(ro_args)+10); /* some spare extra */
strcpy(args, ro_args);
argc = splitargs(args, 0, NULL);
argv = alloc(argc * sizeof(*argv));
if (argv == NULL)
panic("alloc of argv failed");
argc = splitargs(args, 1, argv);
/* start real main() */
os_exit(NULL, main(argc, argv));
}
int sandbox_main_loop_init(void)
{
struct sandbox_state *state = state_get_current();
/* Execute command if required */
if (state->cmd) {
run_command_list(state->cmd, -1, 0);
os_exit(state->exit_type);
}
return 0;
}
off_t os_lseek(int fd, off_t offset, int whence)
{
if (whence == OS_SEEK_SET)
whence = SEEK_SET;
else if (whence == OS_SEEK_CUR)
whence = SEEK_CUR;
else if (whence == OS_SEEK_END)
whence = SEEK_END;
else
os_exit(1);
return lseek(fd, offset, whence);
}
int os_jump_to_image(const void *dest, int size)
{
struct sandbox_state *state = state_get_current();
char fname[30], mem_fname[30];
int fd, err;
const char *extra_args[5];
char **argv = state->argv;
#ifdef DEBUG
int argc, i;
#endif
err = make_exec(fname, dest, size);
if (err)
return err;
strcpy(mem_fname, "/tmp/u-boot.mem.XXXXXX");
fd = mkstemp(mem_fname);
if (fd < 0)
return -ENOENT;
close(fd);
err = os_write_ram_buf(mem_fname);
if (err)
return err;
os_fd_restore();
extra_args[0] = "-j";
extra_args[1] = fname;
extra_args[2] = "-m";
extra_args[3] = mem_fname;
extra_args[4] = "--rm_memory";
err = add_args(&argv, extra_args,
sizeof(extra_args) / sizeof(extra_args[0]));
if (err)
return err;
#ifdef DEBUG
for (i = 0; argv[i]; i++)
printf("%d %s\n", i, argv[i]);
#endif
if (state_uninit())
os_exit(2);
err = execv(fname, argv);
free(argv);
if (err)
return err;
return unlink(fname);
}
int main(int argc, char *argv[])
{
int status;
OS_ASSERT(argc == 2);
status = atoi(argv[1]);
os_exit(status);
/* Should never go there */
OS_ASSERT(false);
/* Prevent a warning */
return 0;
}
int sandbox_main_loop_init(void)
{
struct sandbox_state *state = state_get_current();
/* Execute command if required */
if (state->cmd || state->run_distro_boot) {
int retval = 0;
cli_init();
#ifdef CONFIG_CMDLINE
if (state->cmd)
retval = run_command_list(state->cmd, -1, 0);
if (state->run_distro_boot)
retval = cli_simple_run_command("run distro_bootcmd",
0);
#endif
if (!state->interactive)
os_exit(retval);
}
return 0;
}
static void
unix_signal_handler (int signum, siginfo_t * si, ucontext_t * uc)
{
uword fatal = 0;
/* These come in handy when looking at core files from optimized images */
last_signum = signum;
last_faulting_address = (uword) si->si_addr;
syslog_msg = format (syslog_msg, "received signal %U, PC %U",
format_signal, signum, format_ucontext_pc, uc);
if (signum == SIGSEGV)
syslog_msg = format (syslog_msg, ", faulting address %p", si->si_addr);
switch (signum)
{
/* these (caught) signals cause the application to exit */
case SIGTERM:
/*
* Ignore SIGTERM if it's sent before we're ready.
*/
if (unix_main.vlib_main && unix_main.vlib_main->main_loop_exit_set)
{
syslog (LOG_ERR | LOG_DAEMON, "received SIGTERM, exiting...");
unix_main.vlib_main->main_loop_exit_now = 1;
}
else
syslog (LOG_ERR | LOG_DAEMON, "IGNORE early SIGTERM...");
break;
/* fall through */
case SIGQUIT:
case SIGINT:
case SIGILL:
case SIGBUS:
case SIGSEGV:
case SIGHUP:
case SIGFPE:
case SIGABRT:
fatal = 1;
break;
/* by default, print a message and continue */
default:
fatal = 0;
break;
}
#ifdef CLIB_GCOV
/*
* Test framework sends SIGTERM, so we need to flush the
* code coverage stats here.
*/
{
void __gcov_flush (void);
__gcov_flush ();
}
#endif
/* Null terminate. */
vec_add1 (syslog_msg, 0);
if (fatal)
{
syslog (LOG_ERR | LOG_DAEMON, "%s", syslog_msg);
/* Address of callers: outer first, inner last. */
uword callers[15];
uword n_callers = clib_backtrace (callers, ARRAY_LEN (callers), 0);
int i;
for (i = 0; i < n_callers; i++)
{
vec_reset_length (syslog_msg);
syslog_msg =
format (syslog_msg, "#%-2d 0x%016lx %U%c", i, callers[i],
format_clib_elf_symbol_with_address, callers[i], 0);
syslog (LOG_ERR | LOG_DAEMON, "%s", syslog_msg);
}
/* have to remove SIGABRT to avoid recusive - os_exit calling abort() */
unsetup_signal_handlers (SIGABRT);
os_exit (1);
}
else
clib_warning ("%s", syslog_msg);
}
void _rtt(void)
{
os_exit(NULL, 0);
}
