/* **********************************************************
 * Copyright (c) 2014-2015 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.
 *
 * * Neither the name of VMware, Inc. nor the names of its contributors may be
 *   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
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL VMWARE, INC. OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

#include "tools.h"

#define ON_STACK 1

#if !ON_STACK
unsigned int buf[8];
#endif

int
main()
{
#if ON_STACK
    unsigned int buf[8];
#endif
    void (*foo)(void) = (void *)buf;

    INIT();
    print("starting up\n");

#if defined(X86)
    *(unsigned char *)buf = 0xc3; /* ret */
#elif defined(ARM)
    buf[0] = 0xe12fff1e; /* bx lr */
#elif defined(AARCH64)
    buf[0] = 0xd65f03c0; /* ret */
#else
#    error NYI
#endif

#ifndef X86
    /* The call to __clear_cache is not required on Intel, and the function
     * may not be provided by all compilers.
     */
    __clear_cache(buf, buf + sizeof(buf));
#endif

    foo();

    print("about to exit\n");

    ((unsigned char *)buf)[1] = 0xc3;
    return 0;
}