Attachment 199211 Details for Bug 233204 – test program

test program

test.txt (text/plain), 1.02 KB, created by Mikael Urankar on 2018-11-13 18:04:45 UTC

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Creator: Mikael Urankar

Created: 2018-11-13 18:04:45 UTC

Size: 1.02 KB

patch

obsolete

>/* from https://sourceware.org/ml/libc-help/2011-04/msg00000.html */
>
>/* test.c */
>/* Compile with "cc -o test test.c -lpthread" */
>#include <pthread.h>
>#include <stdlib.h>
>#include <stdio.h>
>#include <dlfcn.h>
>
>int main(void)
>{
>	int i;
>	void *handle;
>	pthread_t pt;
>	void *(*do_something)(void *);
>
>	handle = dlopen("./test_lib.so", RTLD_LAZY);
>	if (!handle) {
>		perror("dlopen");
>		return EXIT_FAILURE;
>	}
>
>	do_something = dlsym(handle, "do_something");
>	if (!do_something) {
>		perror("dlsym");
>		return EXIT_FAILURE;
>	}
>
>	for (i = 0; i < 10000; i++) {
>		if (pthread_create(&pt, NULL, do_something, NULL)) {
>			perror("pthread_create");
>			return EXIT_FAILURE;
>		}
>
>		if (pthread_join(pt, NULL))  {
>			perror("pthread_join");
>			return EXIT_FAILURE;
>		}
>	}
>
>	if (dlclose(handle)) {
>		perror("dlclose");
>		return EXIT_FAILURE;
>	}
>
>	return EXIT_SUCCESS;
>}
>
>
>/* test_lib.c */
>/* Compile with "cc -o test_lib.so test_lib.c -fPIC -shared" */
>#include <stdlib.h>
>
>static __thread int a;
>
>void *do_something(void *arg)
>{
>	a = 666;
>	return NULL;
>}

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