diff options
| author | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-11-23 13:08:32 +0000 |
|---|---|---|
| committer | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-11-23 13:08:32 +0000 |
| commit | ea4767ad256f431718fbab4462afaec166c63a83 (patch) | |
| tree | 9b453c1cf69c2a1e172120085085ee23f1e908d0 /gcc | |
| parent | 9a1131445883cc11e4cbd8c38ca96fe1dfc58031 (diff) | |
* gcc.dg/setjmp-2.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@91087 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/setjmp-2.c | 48 |
2 files changed, 52 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 4b9cd3f8b0d..605cad3d588 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2004-11-23 Eric Botcazou <ebotcazou@libertysurf.fr> + + * gcc.dg/setjmp-2.c: New test. + 2004-11-22 James A. Morrison <phython@gcc.gnu.org> * gcc.target/sparc/align.c, gcc.target/sparc/combined-2.c, diff --git a/gcc/testsuite/gcc.dg/setjmp-2.c b/gcc/testsuite/gcc.dg/setjmp-2.c new file mode 100644 index 00000000000..6c89f8e9697 --- /dev/null +++ b/gcc/testsuite/gcc.dg/setjmp-2.c @@ -0,0 +1,48 @@ +/* PR middle-end/17813 */ +/* Origin: Tom Hughes <tom@compton.nu> */ +/* { dg-do run { target i?86-*-linux* x86_64-*-linux* } } */ +/* { dg-options "-O -fomit-frame-pointer -march=i386" { target i?86-*-linux* } } */ +/* { dg-options "-O -fomit-frame-pointer -m32 -march=i386" { target x86_64-*-linux* } } */ + +#include <setjmp.h> +#include <signal.h> +#include <stdlib.h> + +static jmp_buf segv_jmpbuf; + +static void segv_handler(int seg) +{ + __builtin_longjmp(segv_jmpbuf, 1); +} + +static int is_addressable(void *p, size_t size) +{ + volatile char * volatile cp = (volatile char *)p; + volatile int ret; + struct sigaction sa, origsa; + sigset_t mask; + + sa.sa_handler = segv_handler; + sa.sa_flags = 0; + sigfillset(&sa.sa_mask); + sigaction(SIGSEGV, &sa, &origsa); + sigprocmask(SIG_SETMASK, NULL, &mask); + + if (__builtin_setjmp(segv_jmpbuf) == 0) { + while(size--) + *cp++; + ret = 1; + } else + ret = 0; + + sigaction(SIGSEGV, &origsa, NULL); + sigprocmask(SIG_SETMASK, &mask, NULL); + + return ret; +} + +int main(int argc, char **argv) +{ + is_addressable(0x0, 1); + return 0; +} |