/*
 * Copyright 2002-2019 Intel Corporation.
 * 
 * This software is provided to you as Sample Source Code as defined in the accompanying
 * End User License Agreement for the Intel(R) Software Development Products ("Agreement")
 * section 1.L.
 * 
 * This software and the related documents are provided as is, with no express or implied
 * warranties, other than those that are expressly stated in the License.
 */

#include <sys/personality.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/resource.h>

#ifndef ADDR_NO_RANDOMIZE
# define ADDR_NO_RANDOMIZE 0x40000
#endif

void disableASLR()
{
    int persona = personality(0xffffffff);
    if (!(persona & ADDR_NO_RANDOMIZE))
    {
        // We are running with ASLR: disable it and re-run the program
        personality(persona|ADDR_NO_RANDOMIZE);
    }
#ifdef TARGET_IA32
    // On 32 bit Linux, unlimiting the stack size is also required so the kernel won't
    // randomize the VDSO address
    struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY };
    setrlimit(RLIMIT_STACK, &rlim);
#endif
}

int main(int argc, char **argv)
{
   if (argc < 2)
   {
       printf("Use: %s <command to execute>\n", argv[0]);
       return 1;
   }

   disableASLR();

   execv(argv[1], argv + 1);
   fprintf(stderr, "ERROR: Could not to exec %s\n", argv[1]);
   return -1;
}