Viewing file:  split-2.c (1.02 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-require-effective-target split_stack } */
/* { dg-require-effective-target pthread_h } */
/* { dg-options "-pthread -fsplit-stack" } */
#include <stdlib.h>
#include <pthread.h>
/* Use a noinline function to ensure that the buffer is not removed
from the stack. */
static void use_buffer (char *buf) __attribute__ ((noinline));
static void
use_buffer (char *buf)
{
buf[0] = '\0';
}
/* Each recursive call uses 10,000 bytes. We call it 1000 times,
using a total of 10,000,000 bytes. If -fsplit-stack is not
working, that will overflow our stack limit. */
static void
down (int i)
{
char buf[10000];
if (i > 0)
{
use_buffer (buf);
down (i - 1);
}
}
static void *
thread_routine (void *arg __attribute__ ((unused)))
{
down (1000);
return NULL;
}
int
main (void)
{
int i;
pthread_t tid;
void *dummy;
i = pthread_create (&tid, NULL, thread_routine, NULL);
if (i != 0)
abort ();
i = pthread_join (tid, &dummy);
if (i != 0)
abort ();
return 0;
}
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