blob: 90de90ac8311ef265df72afc82fc0dac1c2f74fa (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
/* PR middle-end/32758 */
/* HP-UX libunwind.so doesn't provide _UA_END_OF_STACK */
/* { dg-do run } */
/* { dg-options "-O2 -fexceptions" } */
/* { dg-skip-if "" { "ia64-*-hpux11.*" } { "*" } { "" } } */
/* Verify unwind info in presence of alloca. */
#include <unwind.h>
#include <stdlib.h>
#include <string.h>
static _Unwind_Reason_Code
force_unwind_stop (int version, _Unwind_Action actions,
_Unwind_Exception_Class exc_class,
struct _Unwind_Exception *exc_obj,
struct _Unwind_Context *context,
void *stop_parameter)
{
if (actions & _UA_END_OF_STACK)
abort ();
return _URC_NO_REASON;
}
static void force_unwind (void)
{
struct _Unwind_Exception *exc = malloc (sizeof (*exc));
memset (&exc->exception_class, 0, sizeof (exc->exception_class));
exc->exception_cleanup = 0;
#ifndef __USING_SJLJ_EXCEPTIONS__
_Unwind_ForcedUnwind (exc, force_unwind_stop, 0);
#else
_Unwind_SjLj_ForcedUnwind (exc, force_unwind_stop, 0);
#endif
abort ();
}
__attribute__((noinline))
void foo (void *x __attribute__((unused)))
{
force_unwind ();
}
__attribute__((noinline))
int bar (unsigned int x)
{
void *y = __builtin_alloca (x);
foo (y);
return 1;
}
static void handler (void *p __attribute__((unused)))
{
exit (0);
}
__attribute__((noinline))
static void doit ()
{
char dummy __attribute__((cleanup (handler)));
bar (1024);
}
int main ()
{
doit ();
abort ();
}
|
