Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/pr85388-3.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
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111:04ced10e8804 | 131:84e7813d76e9 |
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1 /* This test needs to use setrlimit to set the stack size, so it can | |
2 only run on Unix. */ | |
3 /* { dg-do run { target { i?86-*-linux* i?86-*-gnu* x86_64-*-linux* } } } */ | |
4 /* { dg-require-effective-target cet } */ | |
5 /* { dg-require-effective-target split_stack } */ | |
6 /* { dg-options "-fsplit-stack -fcf-protection" } */ | |
7 | |
8 #include <stdarg.h> | |
9 #include <stdlib.h> | |
10 #include <sys/types.h> | |
11 #include <sys/resource.h> | |
12 | |
13 /* Use a noinline function to ensure that the buffer is not removed | |
14 from the stack. */ | |
15 static void use_buffer (char *buf) __attribute__ ((noinline)); | |
16 static void | |
17 use_buffer (char *buf) | |
18 { | |
19 buf[0] = '\0'; | |
20 } | |
21 | |
22 /* Each recursive call uses 10,000 bytes. We call it 1000 times, | |
23 using a total of 10,000,000 bytes. If -fsplit-stack is not | |
24 working, that will overflow our stack limit. */ | |
25 | |
26 static void | |
27 down (int i, ...) | |
28 { | |
29 char buf[10000]; | |
30 va_list ap; | |
31 | |
32 va_start (ap, i); | |
33 if (va_arg (ap, int) != 1 | |
34 || va_arg (ap, int) != 2 | |
35 || va_arg (ap, int) != 3 | |
36 || va_arg (ap, int) != 4 | |
37 || va_arg (ap, int) != 5 | |
38 || va_arg (ap, int) != 6 | |
39 || va_arg (ap, int) != 7 | |
40 || va_arg (ap, int) != 8 | |
41 || va_arg (ap, int) != 9 | |
42 || va_arg (ap, int) != 10) | |
43 abort (); | |
44 | |
45 if (i > 0) | |
46 { | |
47 use_buffer (buf); | |
48 down (i - 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10); | |
49 } | |
50 } | |
51 | |
52 int | |
53 main (void) | |
54 { | |
55 struct rlimit r; | |
56 | |
57 /* We set a stack limit because we are usually invoked via make, and | |
58 make sets the stack limit to be as large as possible. */ | |
59 r.rlim_cur = 8192 * 1024; | |
60 r.rlim_max = 8192 * 1024; | |
61 if (setrlimit (RLIMIT_STACK, &r) != 0) | |
62 abort (); | |
63 down (1000, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10); | |
64 return 0; | |
65 } |