92 lines
1.7 KiB
C
92 lines
1.7 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <pthread.h>
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#define CHUNK_SIZE 16000 /* same as findcmd.c's */
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#define BUF_SIZE (2 * CHUNK_SIZE) /* at least two chunks */
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#define NUMTH 8
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int8_t int8_search_buf[100];
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int16_t int16_search_buf[100];
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int32_t int32_search_buf[100];
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int64_t int64_search_buf[100];
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static char *search_buf;
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static int search_buf_size;
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int f2 (int a)
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{
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/* We use a `char[]' type below rather than the typical `char *'
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to make sure that `str' gets allocated on the stack. Otherwise,
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the compiler may place the "hello, testsuite" string inside
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a read-only section, preventing us from over-writing it from GDB. */
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char str[] = "hello, testsuite";
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puts (str); /* Break here. */
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return ++a;
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}
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int f1 (int a, int b)
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{
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return f2(a) + b;
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}
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static void
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init_bufs ()
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{
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search_buf_size = BUF_SIZE;
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search_buf = malloc (search_buf_size);
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if (search_buf == NULL)
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exit (1);
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memset (search_buf, 'x', search_buf_size);
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}
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static void *
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thread (void *param)
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{
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pthread_barrier_t *barrier = (pthread_barrier_t *) param;
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pthread_barrier_wait (barrier);
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return param;
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}
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static void
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check_threads (pthread_barrier_t *barrier)
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{
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pthread_barrier_wait (barrier);
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}
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extern int
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test_threads (void)
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{
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pthread_t threads[NUMTH];
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pthread_barrier_t barrier;
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int i;
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pthread_barrier_init (&barrier, NULL, NUMTH + 1);
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for (i = 0; i < NUMTH; ++i)
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pthread_create (&threads[i], NULL, thread, &barrier);
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check_threads (&barrier);
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for (i = 0; i < NUMTH; ++i)
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pthread_join (threads[i], NULL);
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pthread_barrier_destroy (&barrier);
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return 0;
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}
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int main (int argc, char *argv[])
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{
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test_threads ();
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init_bufs ();
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return f1 (1, 2);
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}
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