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comparison gcc/testsuite/gcc.dg/cleanup-9.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children 1830386684a0
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68:561a7518be6b 111:04ced10e8804
1 /* { dg-do run { target hppa*-*-hpux* *-*-linux* *-*-gnu* powerpc*-*-darwin* *-*-darwin[912]* } } */
2 /* { dg-options "-fexceptions -fnon-call-exceptions -O2" } */
3 /* Verify that cleanups work with exception handling through realtime
4 signal frames. */
5
6 #include <unwind.h>
7 #include <stdlib.h>
8 #include <signal.h>
9 #include <string.h>
10
11 static _Unwind_Reason_Code
12 force_unwind_stop (int version, _Unwind_Action actions,
13 _Unwind_Exception_Class exc_class,
14 struct _Unwind_Exception *exc_obj,
15 struct _Unwind_Context *context,
16 void *stop_parameter)
17 {
18 if (actions & _UA_END_OF_STACK)
19 abort ();
20 return _URC_NO_REASON;
21 }
22
23 static void force_unwind ()
24 {
25 struct _Unwind_Exception *exc = malloc (sizeof (*exc));
26 memset (&exc->exception_class, 0, sizeof (exc->exception_class));
27 exc->exception_cleanup = 0;
28
29 #ifndef __USING_SJLJ_EXCEPTIONS__
30 _Unwind_ForcedUnwind (exc, force_unwind_stop, 0);
31 #else
32 _Unwind_SjLj_ForcedUnwind (exc, force_unwind_stop, 0);
33 #endif
34
35 abort ();
36 }
37
38 int count;
39 char *null;
40
41 static void counter (void *p __attribute__((unused)))
42 {
43 ++count;
44 }
45
46 static void handler (void *p __attribute__((unused)))
47 {
48 if (count != 2)
49 abort ();
50 exit (0);
51 }
52
53 static int __attribute__((noinline)) fn5 ()
54 {
55 char dummy __attribute__((cleanup (counter)));
56 force_unwind ();
57 return 0;
58 }
59
60 static void fn4 (int sig, siginfo_t *info, void *ctx)
61 {
62 char dummy __attribute__((cleanup (counter)));
63 fn5 ();
64 null = NULL;
65 }
66
67 static void fn3 ()
68 {
69 abort ();
70 }
71
72 static int __attribute__((noinline)) fn2 ()
73 {
74 *null = 0;
75 fn3 ();
76 return 0;
77 }
78
79 static int __attribute__((noinline)) fn1 ()
80 {
81 struct sigaction s;
82 sigemptyset (&s.sa_mask);
83 s.sa_sigaction = fn4;
84 s.sa_flags = SA_RESETHAND | SA_SIGINFO;
85 sigaction (SIGSEGV, &s, NULL);
86 sigaction (SIGBUS, &s, NULL);
87 fn2 ();
88 return 0;
89 }
90
91 static int __attribute__((noinline)) fn0 ()
92 {
93 char dummy __attribute__((cleanup (handler)));
94 fn1 ();
95 null = 0;
96 return 0;
97 }
98
99 int main()
100 {
101 fn0 ();
102 abort ();
103 }