static int StartApp(struct NaClApp *nap, struct NaClChromeMainArgs *args) {
int ret_code;
struct NaClEnvCleanser env_cleanser;
char const *const *envp;
NACL_FI_FATAL("BeforeEnvCleanserCtor");
NaClEnvCleanserCtor(&env_cleanser, 1, 0);
if (!NaClEnvCleanserInit(&env_cleanser, NaClGetEnviron(), NULL)) {
NaClLog(LOG_FATAL, "Failed to initialise env cleanser\n");
}
envp = NaClEnvCleanserEnvironment(&env_cleanser);
if (NACL_FI_ERROR_COND(
"CreateMainThread",
!NaClCreateMainThread(nap, args->argc, args->argv, envp))) {
NaClLog(LOG_FATAL, "creating main thread failed\n");
}
NACL_FI_FATAL("BeforeEnvCleanserDtor");
NaClEnvCleanserDtor(&env_cleanser);
ret_code = NaClWaitForMainThreadToExit(nap);
if (NACL_ABI_WIFEXITED(nap->exit_status)) {
/*
* Under Chrome, a call to _exit() often indicates that something
* has gone awry, so we report it here to aid debugging.
*
* This conditional does not run if the NaCl process was
* terminated forcibly, which is the normal case under Chrome.
* This forcible exit is triggered by the renderer closing the
* trusted SRPC channel, which we record as NACL_ABI_SIGKILL
* internally.
*/
NaClLog(LOG_INFO, "NaCl untrusted code called _exit(0x%x)\n", ret_code);
}
return ret_code;
}
int NaClReportExitStatus(struct NaClApp *nap, int exit_status) {
int rv = 0;
NaClSrpcError rpc_result;
NaClXMutexLock(&nap->mu);
/*
* If several threads are exiting/reporting signals at once, we should
* let only one thread to pass through. This way we can use exit code
* without synchronization once we know that running==0.
*/
if (!nap->running) {
NaClXMutexUnlock(&nap->mu);
return 0;
}
if (NACL_REVERSE_CHANNEL_INITIALIZED ==
nap->reverse_channel_initialization_state) {
/* TODO(halyavin) update NaCl plugin to accept full exit_status value */
if (NACL_ABI_WIFEXITED(exit_status)) {
rpc_result = NaClSrpcInvokeBySignature(&nap->reverse_channel,
NACL_REVERSE_CONTROL_REPORT_STATUS,
NACL_ABI_WEXITSTATUS(exit_status));
rv = NACL_SRPC_RESULT_OK == rpc_result;
}
/*
* Due to cross-repository checkins, the Cr-side might not yet
* implement this RPC. We return whether shutdown was reported.
*/
}
nap->exit_status = exit_status;
nap->running = 0;
NaClXCondVarSignal(&nap->cv);
NaClXMutexUnlock(&nap->mu);
return rv;
}