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comparison gcc/testsuite/gcc.dg/pr85388-2.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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111:04ced10e8804 131:84e7813d76e9
1 /* { dg-do run { target { i?86-*-linux* i?86-*-gnu* x86_64-*-linux* } } } */
2 /* { dg-require-effective-target cet } */
3 /* { dg-require-effective-target split_stack } */
4 /* { dg-require-effective-target pthread_h } */
5 /* { dg-options "-pthread -fsplit-stack -fcf-protection" } */
6
7 #include <stdlib.h>
8 #include <pthread.h>
9
10 /* Use a noinline function to ensure that the buffer is not removed
11 from the stack. */
12 static void use_buffer (char *buf) __attribute__ ((noinline));
13 static void
14 use_buffer (char *buf)
15 {
16 buf[0] = '\0';
17 }
18
19 /* Each recursive call uses 10,000 bytes. We call it 1000 times,
20 using a total of 10,000,000 bytes. If -fsplit-stack is not
21 working, that will overflow our stack limit. */
22
23 static void
24 down (int i)
25 {
26 char buf[10000];
27
28 if (i > 0)
29 {
30 use_buffer (buf);
31 down (i - 1);
32 }
33 }
34
35 static void *
36 thread_routine (void *arg __attribute__ ((unused)))
37 {
38 down (1000);
39 return NULL;
40 }
41
42 int
43 main (void)
44 {
45 int i;
46 pthread_t tid;
47 void *dummy;
48
49 i = pthread_create (&tid, NULL, thread_routine, NULL);
50 if (i != 0)
51 abort ();
52 i = pthread_join (tid, &dummy);
53 if (i != 0)
54 abort ();
55 return 0;
56 }