57 lines
959 B
C
57 lines
959 B
C
#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <sys/utsname.h>
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#include <memory.h>
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#include <sys/mman.h>
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#include <sched.h>
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#define NUM_THREADS 5
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void *thread_fn_nop(void *arg)
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{
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sleep(10);
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}
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void *thread_fn_dump(void *arg)
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{
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int *ptr = NULL;
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*ptr = 0xdead;
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}
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int main(void)
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{
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pthread_t threads[NUM_THREADS];
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int i, j;
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int rets[NUM_THREADS];
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printf("SEGV in sub thread!!\n");
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/* Create threads */
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for (i = 0; i < NUM_THREADS; i++) {
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if (i == NUM_THREADS - 1) {
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/* SEGV thread */
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rets[i] = pthread_create(&threads[i], NULL,
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thread_fn_dump, NULL);
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} else {
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rets[i] = pthread_create(&threads[i], NULL,
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thread_fn_nop, NULL);
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}
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if (rets[i] != 0) {
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printf("pthread_create: %d\n", rets[i]);
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}
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}
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printf("pthread_create done!! Let's join!!!!\n");
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for (j = 0; j < NUM_THREADS; j++) {
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pthread_join(threads[j], NULL);
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}
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printf("All threads are done.\n");
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exit(0);
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}
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