/*
 * 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 <stdio.h>
#include <stdlib.h>
#include "pin.H"

#define CHECKNULL(P) \
    if ((P) != 0) { \
        fprintf(stderr, "Failed: expected 0 got %p\n", P); \
        exit(1); \
    }


KNOB<INT32> KnobMaxSize(KNOB_MODE_WRITEONCE, "pintool",
    "m", "0x6000000", "Total bytes to allocate");
KNOB<INT32> KnobIncrement(KNOB_MODE_WRITEONCE, "pintool",
    "i", "100", "Bytes to malloc each time");


VOID MalMalloc()
{
    for (INT32 size = 0; size < KnobMaxSize; size+=KnobIncrement)
    {
        VOID * m = malloc(KnobIncrement);
        if (m == 0)
        {
            fprintf(stderr, "Failed malloc\n");
            PIN_ExitApplication(1);
        }
    }
}

int main(INT32 argc, CHAR **argv)
{

// Supress this warning for GCC7 since it doesn't allow passing 0xff000000 to malloc
#if defined(TARGET_IA32)
#if defined (__GNUC__)
# if (__GNUC__ >= 7)
#  pragma GCC diagnostic ignored "-Walloc-size-larger-than="
# endif
#endif

    // Test the initial pool
    void * p = malloc(0xff000000);
    CHECKNULL(p);
#endif

    PIN_Init(argc, argv);
    
    MalMalloc();
    
#if defined(TARGET_IA32)
    // Test after we are out of initial pool
    void * p2 = malloc(0xff000000);
    CHECKNULL(p2);
#endif

    // Never returns
    PIN_StartProgram();
    
    return 0;
}