/*
 * 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 "pin.H"
#include <iostream>
#include <stdlib.h>
#include <string>
using std::cerr;
using std::endl;

/* ===================================================================== */
/* Print Help Message                                                    */
/* ===================================================================== */
INT32 Usage()
{
    cerr <<
        "This tool checks that the launcher setups the environment correctly. \n"
        "\n";
    cerr << KNOB_BASE::StringKnobSummary();
    cerr << endl;
    return -1;
}

/* ===================================================================== */
/* Main                                                                  */
/* ===================================================================== */
int main(int argc, char *argv[])
{
    if( PIN_Init(argc,argv) )
    {
        return Usage();
    }

#if defined(TARGET_LINUX)
    // Check that LD_LIBRARY_PATH contains the required libraries to the VM.
    //
    char* ld_library_path = getenv("LD_LIBRARY_PATH");
    if (ld_library_path) {
        std::string ld_path(ld_library_path);
        // Adding ':' after each string because they all new to be before the old values in the
        // LD_LIBRARY_PATH.
        //
    }
#elif defined(TARGET_MAC)
    char* dyld_library_path = getenv("DYLD_LIBRARY_PATH");
    // Check that DYLD_LIBRARY_PATH is set and contains the runtime libraries.
    //
    if (NULL == dyld_library_path) {
        std::cout << "Failed in tool! DYLD_LIBRARY_PATH not set" << std::endl;
        exit(1);
    }
    std::string ld_path(dyld_library_path);
    bool not_found_32_xed = ld_path.find("/extras/xed-ia32/lib:")    == std::string::npos;
    bool not_found_64_xed = ld_path.find("/extras/xed-intel64/lib:") == std::string::npos;
    bool not_found_32_ext = ld_path.find("/ia32/lib-ext:")            == std::string::npos;
    bool not_found_64_ext = ld_path.find("/intel64/lib-ext:")        == std::string::npos;
    if (not_found_32_xed || not_found_64_xed || not_found_32_ext || not_found_64_ext) {
        std::cout << "Failed! DYLD_LIBRARY_PATH = " << dyld_library_path << std::endl;
        exit(1);
    }
# ifdef PIN_CRT
    // Check that DYLD_LIBRARY_PATH contains the PIN CRT libraries.
    //
    bool not_found_32_pincrt = ld_path.find("/ia32/runtime/pincrt:")          == std::string::npos;
    bool not_found_64_pincrt = ld_path.find("/intel64/runtime/pincrt:")       == std::string::npos;
    if (not_found_32_pincrt || not_found_64_pincrt) {
        std::cout << "Failed! DYLD_LIBRARY_PATH = " << dyld_library_path << std::endl;
        exit(1);
    }
# endif // PIN_CRT
#endif // TARGET_MAC

    std::cout << "Tool success!" << std::endl;

    // Never returns
    PIN_StartProgram();

    return 0;
}
/* ===================================================================== */
/* eof */
/* ===================================================================== */