1 /* This test needs to use setrlimit to set the stack size, so it can
3 /* { dg-do run { target *-*-linux* *-*-solaris* *-*-darwin* } } */
4 /* { dg-require-effective-target split_stack } */
5 /* { dg-options "-fsplit-stack" } */
10 #include <sys/resource.h>
12 /* Use a noinline function to ensure that the buffer is not removed
14 static void use_buffer (char *buf, size_t) __attribute__ ((noinline));
16 use_buffer (char *buf, size_t c)
20 for (i = 0; i < c; ++i)
24 /* Each recursive call uses 10 * i bytes. We call it 1000 times,
25 using a total of 5,000,000 bytes. If -fsplit-stack is not working,
26 that will overflow our stack limit. */
35 use_buffer (buf, 10 * i);
40 /* Same thing, using alloca. */
45 char *buf = alloca (10 * i);
49 use_buffer (buf, 10 * i);
59 /* We set a stack limit because we are usually invoked via make, and
60 make sets the stack limit to be as large as possible. */
61 r.rlim_cur = 8192 * 1024;
62 r.rlim_max = 8192 * 1024;
63 if (setrlimit (RLIMIT_STACK, &r) != 0)