// Copyright 2015 The Emscripten Authors. All rights reserved.

// Emscripten is available under two separate licenses, the MIT license and the

// University of Illinois/NCSA Open Source License. Both these licenses can be

// found in the LICENSE file.

#define _GNU_SOURCE

#include <assert.h>

#include <inttypes.h>

#include <pthread.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

void TestStack() {

pthread_attr_t attr;

int rc;

void *stbase;

size_t stsize;

char dummy;

rc = pthread_attr_init(&attr);

assert(rc == 0);

rc = pthread_getattr_np(pthread_self(), &attr);

assert(rc == 0);

rc = pthread_attr_getstack(&attr, &stbase, &stsize);

assert(rc == 0);

printf("size=%zu base=%p base+size=%p dummy=%p\n", stsize, stbase, (char*)stbase + stsize, &dummy);

assert(&dummy >= (char*)stbase);

assert(&dummy <= (char*)stbase + stsize);

}

void *ThreadMain(void *arg) {

TestStack();

return NULL;

}

int main() {

// Run TestStack both on the main thread and on a secondary thread

TestStack();

pthread_t thread;

int rc;

rc = pthread_create(&thread, NULL, ThreadMain, NULL);

assert(rc == 0);

rc = pthread_join(thread, NULL);

assert(rc == 0);

printf("done\n");

return 0;

}