suite/tests/common/segfault.c

/* **********************************************************
 * Copyright (c) 2011-2014 Google, Inc.  All rights reserved.
 * Copyright (c) 2003-2008 VMware, Inc.  All rights reserved.
 * **********************************************************/

/*
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
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 *   used to endorse or promote products derived from this software without
 *   specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * DAMAGE.
 */

#include "tools.h" /* for print() */

#include <assert.h>
#include <stdio.h>
#include <math.h>

#ifdef UNIX
# include <unistd.h>
# include <signal.h>
# include <ucontext.h>
# include <errno.h>
#endif

#define ITERS 1500000

static int a[ITERS];

#ifdef UNIX
static void
signal_handler(int sig)
{
    if (sig == SIGSEGV)
        print("Got a seg fault\n");
    abort();
}
#else
/* sort of a hack to avoid the MessageBox of the unhandled exception spoiling
 * our batch runs
 */
# include <windows.h>
/* top-level exception handler */
static LONG
our_top_handler(struct _EXCEPTION_POINTERS * pExceptionInfo)
{
    if (pExceptionInfo->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION)
        print("Got a seg fault\n");
# if VERBOSE
    print("Exception occurred, process about to die silently\n");
# endif
    return EXCEPTION_EXECUTE_HANDLER; /* => global unwind and silent death */
}
#endif

int main(int argc, char *argv[])
{
    double res = 0.;

#ifdef UNIX
    intercept_signal(SIGSEGV, (handler_3_t) signal_handler, false);
#else
    SetUnhandledExceptionFilter((LPTOP_LEVEL_EXCEPTION_FILTER) our_top_handler);
#endif

    print("Segfault about to happen\n");

    *((volatile int *)0) = 4;

    print("SHOULD NEVER GET HERE\n");
    return 0;
}