mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-12 14:20:04 +00:00
07045477ca
I tried using 'svn merge' to do the merge but it did a terrible job and there were bazillions of conflicts. So instead I just took the diff between the branch and trunk at r10155, applied the diff to the trunk, 'svn add'ed the added files (no files needed to be 'svn remove'd) and committed. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@10156
56 lines
1.3 KiB
C
56 lines
1.3 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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#if !defined(_AIX) && !defined(__APPLE__)
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sigsegv_new.sa_restorer = NULL;
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#endif
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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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#if defined(__powerpc64__) || defined(_AIX)
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unsigned long int fake_fndescr[3];
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fake_fndescr[0] = 0;
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fake_fndescr[1] = 0;
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fake_fndescr[2] = 0;
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((void(*)(void)) fake_fndescr) ();
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#else
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void (*fn)(void) = 0;
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fn();
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#endif
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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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