mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-03 14:21:30 +00:00
6873450ed5
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8898 91177308-0d34-0410-b5e6-96231b3b80d8
375 lines
13 KiB
C++
375 lines
13 KiB
C++
#include "llvm/Support/ToolRunner.h"
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#include "Support/Debug.h"
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#include "Support/FileUtilities.h"
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//===---------------------------------------------------------------------===//
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// LLI Implementation of AbstractIntepreter interface
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//
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class LLI : public AbstractInterpreter {
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std::string LLIPath; // The path to the LLI executable
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public:
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LLI(const std::string &Path) : LLIPath(Path) { }
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virtual int ExecuteProgram(const std::string &Bytecode,
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const cl::list<std::string> &Args,
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const std::string &InputFile,
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const std::string &OutputFile,
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const std::string &SharedLib = "");
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};
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int LLI::ExecuteProgram(const std::string &Bytecode,
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const cl::list<std::string> &Args,
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const std::string &InputFile,
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const std::string &OutputFile,
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const std::string &SharedLib) {
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if (!SharedLib.empty()) {
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std::cerr << "LLI currently does not support loading shared libraries.\n"
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<< "Exiting.\n";
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exit(1);
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}
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std::vector<const char*> LLIArgs;
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LLIArgs.push_back(LLIPath.c_str());
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LLIArgs.push_back("-abort-on-exception");
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LLIArgs.push_back("-quiet");
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LLIArgs.push_back("-force-interpreter=true");
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LLIArgs.push_back(Bytecode.c_str());
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// Add optional parameters to the running program from Argv
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for (unsigned i=0, e = Args.size(); i != e; ++i)
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LLIArgs.push_back(Args[i].c_str());
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LLIArgs.push_back(0);
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std::cout << "<lli>" << std::flush;
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DEBUG(std::cerr << "\nAbout to run:\n\t";
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for (unsigned i=0, e = LLIArgs.size(); i != e; ++i)
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std::cerr << " " << LLIArgs[i];
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std::cerr << "\n";
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);
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return RunProgramWithTimeout(LLIPath, &LLIArgs[0],
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InputFile, OutputFile, OutputFile);
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}
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// LLI create method - Try to find the LLI executable
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AbstractInterpreter *createLLItool(const std::string &ProgramPath,
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std::string &Message) {
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std::string LLIPath = FindExecutable("lli", ProgramPath);
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if (!LLIPath.empty()) {
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Message = "Found lli: " + LLIPath + "\n";
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return new LLI(LLIPath);
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}
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Message = "Cannot find `lli' in executable directory or PATH!\n";
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return 0;
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}
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//===----------------------------------------------------------------------===//
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// LLC Implementation of AbstractIntepreter interface
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//
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int LLC::OutputAsm(const std::string &Bytecode,
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std::string &OutputAsmFile) {
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OutputAsmFile = getUniqueFilename(Bytecode+".llc.s");
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const char *LLCArgs[] = {
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LLCPath.c_str(),
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"-o", OutputAsmFile.c_str(), // Output to the Asm file
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"-f", // Overwrite as necessary...
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Bytecode.c_str(), // This is the input bytecode
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0
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};
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std::cout << "<llc>" << std::flush;
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if (RunProgramWithTimeout(LLCPath, LLCArgs, "/dev/null", "/dev/null",
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"/dev/null")) {
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// If LLC failed on the bytecode, print error...
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std::cerr << "Error: `llc' failed!\n";
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removeFile(OutputAsmFile);
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return 1;
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}
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return 0;
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}
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int LLC::ExecuteProgram(const std::string &Bytecode,
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const cl::list<std::string> &Args,
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const std::string &InputFile,
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const std::string &OutputFile,
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const std::string &SharedLib) {
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std::string OutputAsmFile;
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if (OutputAsm(Bytecode, OutputAsmFile)) {
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std::cerr << "Could not generate asm code with `llc', exiting.\n";
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exit(1);
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}
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// Assuming LLC worked, compile the result with GCC and run it.
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int Result = gcc->ExecuteProgram(OutputAsmFile, Args, AsmFile,
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InputFile, OutputFile, SharedLib);
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removeFile(OutputAsmFile);
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return Result;
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}
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/// createLLCtool - Try to find the LLC executable
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///
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LLC *createLLCtool(const std::string &ProgramPath, std::string &Message)
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{
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std::string LLCPath = FindExecutable("llc", ProgramPath);
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if (LLCPath.empty()) {
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Message = "Cannot find `llc' in executable directory or PATH!\n";
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return 0;
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}
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Message = "Found llc: " + LLCPath + "\n";
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GCC *gcc = createGCCtool(ProgramPath, Message);
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if (!gcc) {
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std::cerr << Message << "\n";
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exit(1);
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}
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return new LLC(LLCPath, gcc);
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}
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//===---------------------------------------------------------------------===//
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// JIT Implementation of AbstractIntepreter interface
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//
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class JIT : public AbstractInterpreter {
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std::string LLIPath; // The path to the LLI executable
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public:
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JIT(const std::string &Path) : LLIPath(Path) { }
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virtual int ExecuteProgram(const std::string &Bytecode,
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const cl::list<std::string> &Args,
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const std::string &InputFile,
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const std::string &OutputFile,
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const std::string &SharedLib = "");
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};
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int JIT::ExecuteProgram(const std::string &Bytecode,
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const cl::list<std::string> &Args,
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const std::string &InputFile,
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const std::string &OutputFile,
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const std::string &SharedLib) {
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// Construct a vector of parameters, incorporating those from the command-line
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std::vector<const char*> JITArgs;
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JITArgs.push_back(LLIPath.c_str());
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JITArgs.push_back("-quiet");
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JITArgs.push_back("-force-interpreter=false");
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if (!SharedLib.empty()) {
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JITArgs.push_back("-load");
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JITArgs.push_back(SharedLib.c_str());
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}
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JITArgs.push_back(Bytecode.c_str());
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// Add optional parameters to the running program from Argv
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for (unsigned i=0, e = Args.size(); i != e; ++i)
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JITArgs.push_back(Args[i].c_str());
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JITArgs.push_back(0);
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std::cout << "<jit>" << std::flush;
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DEBUG(std::cerr << "\nAbout to run:\n\t";
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for (unsigned i=0, e = JITArgs.size(); i != e; ++i)
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std::cerr << " " << JITArgs[i];
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std::cerr << "\n";
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);
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DEBUG(std::cerr << "\nSending output to " << OutputFile << "\n");
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return RunProgramWithTimeout(LLIPath, &JITArgs[0],
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InputFile, OutputFile, OutputFile);
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}
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/// createJITtool - Try to find the LLI executable
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///
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AbstractInterpreter *createJITtool(const std::string &ProgramPath,
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std::string &Message) {
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std::string LLIPath = FindExecutable("lli", ProgramPath);
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if (!LLIPath.empty()) {
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Message = "Found lli: " + LLIPath + "\n";
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return new JIT(LLIPath);
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}
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Message = "Cannot find `lli' in executable directory or PATH!\n";
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return 0;
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}
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int CBE::OutputC(const std::string &Bytecode,
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std::string &OutputCFile) {
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OutputCFile = getUniqueFilename(Bytecode+".cbe.c");
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const char *DisArgs[] = {
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DISPath.c_str(),
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"-o", OutputCFile.c_str(), // Output to the C file
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"-c", // Output to C
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"-f", // Overwrite as necessary...
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Bytecode.c_str(), // This is the input bytecode
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0
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};
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std::cout << "<cbe>" << std::flush;
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if (RunProgramWithTimeout(DISPath, DisArgs, "/dev/null", "/dev/null",
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"/dev/null")) {
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// If dis failed on the bytecode, print error...
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std::cerr << "Error: `llvm-dis -c' failed!\n";
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return 1;
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}
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return 0;
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}
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int CBE::ExecuteProgram(const std::string &Bytecode,
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const cl::list<std::string> &Args,
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const std::string &InputFile,
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const std::string &OutputFile,
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const std::string &SharedLib) {
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std::string OutputCFile;
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if (OutputC(Bytecode, OutputCFile)) {
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std::cerr << "Could not generate C code with `llvm-dis', exiting.\n";
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exit(1);
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}
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int Result = gcc->ExecuteProgram(OutputCFile, Args, CFile,
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InputFile, OutputFile, SharedLib);
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removeFile(OutputCFile);
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return Result;
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}
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/// createCBEtool - Try to find the 'dis' executable
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///
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CBE *createCBEtool(const std::string &ProgramPath, std::string &Message) {
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std::string DISPath = FindExecutable("llvm-dis", ProgramPath);
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if (DISPath.empty()) {
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Message =
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"Cannot find `llvm-dis' in executable directory or PATH!\n";
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return 0;
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}
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Message = "Found llvm-dis: " + DISPath + "\n";
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GCC *gcc = createGCCtool(ProgramPath, Message);
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if (!gcc) {
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std::cerr << Message << "\n";
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exit(1);
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}
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return new CBE(DISPath, gcc);
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}
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//===---------------------------------------------------------------------===//
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// GCC abstraction
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//
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// This is not a *real* AbstractInterpreter as it does not accept bytecode
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// files, but only input acceptable to GCC, i.e. C, C++, and assembly files
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//
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int GCC::ExecuteProgram(const std::string &ProgramFile,
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const cl::list<std::string> &Args,
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FileType fileType,
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const std::string &InputFile,
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const std::string &OutputFile,
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const std::string &SharedLib) {
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std::string OutputBinary = getUniqueFilename(ProgramFile+".gcc.exe");
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std::vector<const char*> GCCArgs;
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GCCArgs.push_back(GCCPath.c_str());
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if (!SharedLib.empty()) // Specify the shared library to link in...
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GCCArgs.push_back(SharedLib.c_str());
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GCCArgs.push_back("-x");
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if (fileType == CFile) {
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GCCArgs.push_back("c");
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GCCArgs.push_back("-fno-strict-aliasing");
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} else {
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GCCArgs.push_back("assembler");
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}
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GCCArgs.push_back(ProgramFile.c_str()); // Specify the input filename...
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GCCArgs.push_back("-o");
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GCCArgs.push_back(OutputBinary.c_str()); // Output to the right file...
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GCCArgs.push_back("-lm"); // Hard-code the math library...
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GCCArgs.push_back("-O2"); // Optimize the program a bit...
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GCCArgs.push_back(0); // NULL terminator
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std::cout << "<gcc>" << std::flush;
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if (RunProgramWithTimeout(GCCPath, &GCCArgs[0], "/dev/null", "/dev/null",
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"/dev/null")) {
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ProcessFailure(&GCCArgs[0]);
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exit(1);
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}
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std::vector<const char*> ProgramArgs;
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ProgramArgs.push_back(OutputBinary.c_str());
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// Add optional parameters to the running program from Argv
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for (unsigned i=0, e = Args.size(); i != e; ++i)
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ProgramArgs.push_back(Args[i].c_str());
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ProgramArgs.push_back(0); // NULL terminator
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// Now that we have a binary, run it!
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std::cout << "<program>" << std::flush;
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DEBUG(std::cerr << "\nAbout to run:\n\t";
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for (unsigned i=0, e = ProgramArgs.size(); i != e; ++i)
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std::cerr << " " << ProgramArgs[i];
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std::cerr << "\n";
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);
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int ProgramResult = RunProgramWithTimeout(OutputBinary, &ProgramArgs[0],
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InputFile, OutputFile, OutputFile);
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removeFile(OutputBinary);
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return ProgramResult;
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}
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int GCC::MakeSharedObject(const std::string &InputFile,
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FileType fileType,
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std::string &OutputFile) {
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OutputFile = getUniqueFilename(InputFile+".so");
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// Compile the C/asm file into a shared object
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const char* GCCArgs[] = {
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GCCPath.c_str(),
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"-x", (fileType == AsmFile) ? "assembler" : "c",
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"-fno-strict-aliasing",
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InputFile.c_str(), // Specify the input filename...
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#if defined(sparc) || defined(__sparc__) || defined(__sparcv9)
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"-G", // Compile a shared library, `-G' for Sparc
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#else
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"-shared", // `-shared' for Linux/X86, maybe others
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#endif
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"-o", OutputFile.c_str(), // Output to the right filename...
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"-O2", // Optimize the program a bit...
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0
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};
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std::cout << "<gcc>" << std::flush;
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if(RunProgramWithTimeout(GCCPath, GCCArgs, "/dev/null", "/dev/null",
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"/dev/null")) {
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ProcessFailure(GCCArgs);
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exit(1);
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}
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return 0;
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}
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void GCC::ProcessFailure(const char** GCCArgs) {
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std::cerr << "\n*** Error: invocation of the C compiler failed!\n";
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for (const char **Arg = GCCArgs; *Arg; ++Arg)
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std::cerr << " " << *Arg;
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std::cerr << "\n";
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// Rerun the compiler, capturing any error messages to print them.
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std::string ErrorFilename = getUniqueFilename("gcc.errors");
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RunProgramWithTimeout(GCCPath, GCCArgs, "/dev/null", ErrorFilename.c_str(),
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ErrorFilename.c_str());
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// Print out the error messages generated by GCC if possible...
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std::ifstream ErrorFile(ErrorFilename.c_str());
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if (ErrorFile) {
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std::copy(std::istreambuf_iterator<char>(ErrorFile),
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std::istreambuf_iterator<char>(),
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std::ostreambuf_iterator<char>(std::cerr));
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ErrorFile.close();
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std::cerr << "\n";
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}
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removeFile(ErrorFilename);
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}
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/// createGCCtool - Try to find the `gcc' executable
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///
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GCC *createGCCtool(const std::string &ProgramPath, std::string &Message) {
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std::string GCCPath = FindExecutable("gcc", ProgramPath);
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if (GCCPath.empty()) {
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Message = "Cannot find `gcc' in executable directory or PATH!\n";
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return 0;
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}
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Message = "Found gcc: " + GCCPath + "\n";
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return new GCC(GCCPath);
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}
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