65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/* This test needs to use setrlimit to set the stack size, so it can
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only run on Unix. */
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/* { dg-do run { target *-*-linux* *-*-gnu* *-*-solaris* *-*-darwin* } } */
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/* { dg-require-effective-target split_stack } */
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/* { dg-options "-fsplit-stack" } */
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#include <stdarg.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/resource.h>
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/* Use a noinline function to ensure that the buffer is not removed
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from the stack. */
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static void use_buffer (char *buf) __attribute__ ((noinline));
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static void
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use_buffer (char *buf)
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{
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buf[0] = '\0';
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}
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/* Each recursive call uses 10,000 bytes. We call it 1000 times,
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using a total of 10,000,000 bytes. If -fsplit-stack is not
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working, that will overflow our stack limit. */
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static void
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down (int i, ...)
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{
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char buf[10000];
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va_list ap;
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va_start (ap, i);
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if (va_arg (ap, int) != 1
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|| va_arg (ap, int) != 2
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|| va_arg (ap, int) != 3
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|| va_arg (ap, int) != 4
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|| va_arg (ap, int) != 5
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|| va_arg (ap, int) != 6
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|| va_arg (ap, int) != 7
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|| va_arg (ap, int) != 8
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|| va_arg (ap, int) != 9
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|| va_arg (ap, int) != 10)
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abort ();
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if (i > 0)
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{
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use_buffer (buf);
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down (i - 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
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}
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}
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int
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main (void)
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{
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struct rlimit r;
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/* We set a stack limit because we are usually invoked via make, and
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make sets the stack limit to be as large as possible. */
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r.rlim_cur = 8192 * 1024;
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r.rlim_max = 8192 * 1024;
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if (setrlimit (RLIMIT_STACK, &r) != 0)
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abort ();
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down (1000, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
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return 0;
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}
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