TCCJIT.cpp

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/*
 
        @copyright
 
        <pre>
 
        Copyright 2018 Infineon Technologies AG
 
        This file is part of ETISS tool, see <https://github.com/tum-ei-eda/etiss>.
 
        The initial version of this software has been created with the funding support by the German Federal
        Ministry of Education and Research (BMBF) in the project EffektiV under grant 01IS13022.
 
        Redistribution and use in source and binary forms, with or without modification, are permitted
        provided that the following conditions are met:
 
        1. Redistributions of source code must retain the above copyright notice, this list of conditions and
        the following disclaimer.
 
        2. 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.
 
        3. Neither the name of the copyright holder 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 THE COPYRIGHT HOLDER 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.
 
        </pre>
 
        @author Chair of Electronic Design Automation, TUM
 
        @version 0.1
 
*/
 
#include "TCCJIT.h"
#include "etiss/Misc.h"
#include "etiss/config.h"
 
#include "libtcc.h"
#if ETISS_USE_GETPROC
#include "etiss/ETISS.h"
#include <windows.h>
#include <dbghelp.h>
#include <iostream>
 
BOOL CALLBACK etiss_tcc_allsym(PSYMBOL_INFO pSymInfo, ULONG SymbolSize, PVOID UserContext)
{
    std::map<std::string, void *> &map = *(std::map<std::string, void *> *)UserContext;
    map.insert(std::pair<std::string, void *>(pSymInfo->Name, (void *)pSymInfo->Address));
    std::cout << "Found Symbol: " << pSymInfo->Name << "@0x" << std::hex << (void *)pSymInfo->Address << std::endl;
    return TRUE;
}
 
static void addAllSymbols(std::map<std::string, void *> &ptrs)
{
 
    HANDLE hProcess = GetCurrentProcess();
    // DWORD64 BaseOfDll;
    BOOL status;
 
    status = SymInitialize(hProcess, NULL, TRUE);
    if (status == FALSE)
    {
        return;
    }
 
    auto libs = etiss::listLibraryPrefixes();
    for (auto lib : libs)
    {
        std::string filter;
        filter = std::string("*!") + lib + "_*";
        std::cout << "searching in library " << lib << std::endl;
        if (SymEnumSymbols(hProcess,         // Process handle from SymInitialize.
                           NULL,             // Base address of module.
                           filter.c_str(),   // Name of symbols to match.
                           etiss_tcc_allsym, // Symbol handler procedure.
                           (PVOID)&ptrs))    // User context.
        {
            // SymEnumSymbols succeeded
        }
        else
        {
            std::cout << "Failed to iterate over all symbols for library " << lib << ":" << GetLastError() << std::endl;
        }
    }
 
    SymCleanup(hProcess);
}
 
#endif
 
TCCJIT::TCCJIT() : JIT("tcc")
{
#if ETISS_USE_GETPROC
    addAllSymbols(extsymbols);
#endif
}
 
void *TCCJIT::translate(std::string code, std::set<std::string> headerpaths, std::set<std::string> librarypaths,
                        std::set<std::string> libraries, std::string &error, bool debug)
{
 
    TCCState *s = tcc_new();
    if (!s)
    {
        error = "Could not create tcc state";
        return 0;
    }
 
    /* if tcclib.h and libtcc1.a are not installed, where can we find them */
    tcc_set_lib_path(s, (etiss::jitFiles() + "/tcc").c_str());
 
    // init
    tcc_set_output_type(s, TCC_OUTPUT_MEMORY);
 
    // init headers
    for (auto iter = headerpaths.begin(); iter != headerpaths.end(); iter++)
    {
        tcc_add_include_path(s, iter->c_str());
    }
    tcc_add_include_path(s, (etiss::jitFiles() + "/tcc_stdlib").c_str());
 
    if (tcc_compile_string(s, code.c_str()) == -1)
    { // compile
        error = "Failed to compile code: \n";
        error += code;
        return 0;
    }
 
#if ETISS_USE_GETPROC
    for (auto sym : extsymbols)
    {
        tcc_add_symbol(s, sym.first.c_str(), sym.second);
    }
    for (const auto &jitPath : etiss::jitExtLibPaths())
    {
        etiss::LibraryInterface::addSearchPath(etiss::jitFiles() + jitPath);
    }
#endif
 
    // init libs
    for (const auto &libpath : librarypaths)
    {
        if (tcc_add_library_path(s, libpath.c_str()))
        {
            error += "could not add library path: " + libpath;
            return 0;
        }
    }
    for (const auto &lib : libraries)
    {
        if (tcc_add_library(s, lib.c_str()))
        {
            error += "could not add library: " + lib;
            return 0;
        }
    }
 
    /* relocate the code */
    if (tcc_relocate(s, TCC_RELOCATE_AUTO) < 0)
    { // link
        error = "Failed to link";
        return 0;
    }
 
    /* return TCCState as handle*/
    return (void *)s;
}
void *TCCJIT::getFunction(void *handle, std::string name, std::string &error)
{
 
    return tcc_get_symbol((TCCState *)handle, name.c_str());
}
void TCCJIT::free(void *handle)
{
    tcc_delete((TCCState *)handle);
}