mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-03 18:13:01 +00:00
ce3c7200a7
signal handler present -- previously, Valgrind would abort unnecessarily on this case. Added a regression test for it. MERGE TO STABLE git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2743
46 lines
1.0 KiB
C
46 lines
1.0 KiB
C
#include <assert.h>
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#include <setjmp.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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// Regression test for bug 91162: if a client had a SEGV signal handler,
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// and jumped to a bogus address, Valgrind would abort. With the fix,
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// the following test runs to completion correctly.
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static jmp_buf myjmpbuf;
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static
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void SIGSEGV_handler(int signum)
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{
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__builtin_longjmp(myjmpbuf, 1);
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}
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int main(void)
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{
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struct sigaction sigsegv_new, sigsegv_saved;
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int res;
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/* Install own SIGSEGV handler */
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sigsegv_new.sa_handler = SIGSEGV_handler;
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sigsegv_new.sa_flags = 0;
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sigsegv_new.sa_restorer = NULL;
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res = sigemptyset( &sigsegv_new.sa_mask );
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assert(res == 0);
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res = sigaction( SIGSEGV, &sigsegv_new, &sigsegv_saved );
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assert(res == 0);
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if (__builtin_setjmp(myjmpbuf) == 0) {
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// Jump to zero; will cause seg fault
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void (*fn)(void) = 0;
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fn();
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fprintf(stderr, "Got here??\n");
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} else {
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fprintf(stderr, "Signal caught, as expected\n");
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}
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return 0;
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}
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