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Diffstat (limited to 'contrib/llvm-project/llvm/tools/bugpoint/ToolRunner.cpp')
| -rw-r--r-- | contrib/llvm-project/llvm/tools/bugpoint/ToolRunner.cpp | 865 |
1 files changed, 865 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/tools/bugpoint/ToolRunner.cpp b/contrib/llvm-project/llvm/tools/bugpoint/ToolRunner.cpp new file mode 100644 index 000000000000..da4244345e3b --- /dev/null +++ b/contrib/llvm-project/llvm/tools/bugpoint/ToolRunner.cpp @@ -0,0 +1,865 @@ +//===-- ToolRunner.cpp ----------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file implements the interfaces described in the ToolRunner.h file. +// +//===----------------------------------------------------------------------===// + +#include "ToolRunner.h" +#include "llvm/Config/config.h" +#include "llvm/Support/CommandLine.h" +#include "llvm/Support/Debug.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/FileUtilities.h" +#include "llvm/Support/Program.h" +#include "llvm/Support/raw_ostream.h" +#include <fstream> +#include <sstream> +#include <utility> +using namespace llvm; + +#define DEBUG_TYPE "toolrunner" + +namespace llvm { +cl::opt<bool> SaveTemps("save-temps", cl::init(false), + cl::desc("Save temporary files")); +} + +namespace { +cl::opt<std::string> + RemoteClient("remote-client", + cl::desc("Remote execution client (rsh/ssh)")); + +cl::opt<std::string> RemoteHost("remote-host", + cl::desc("Remote execution (rsh/ssh) host")); + +cl::opt<std::string> RemotePort("remote-port", + cl::desc("Remote execution (rsh/ssh) port")); + +cl::opt<std::string> RemoteUser("remote-user", + cl::desc("Remote execution (rsh/ssh) user id")); + +cl::opt<std::string> + RemoteExtra("remote-extra-options", + cl::desc("Remote execution (rsh/ssh) extra options")); +} + +/// RunProgramWithTimeout - This function provides an alternate interface +/// to the sys::Program::ExecuteAndWait interface. +/// @see sys::Program::ExecuteAndWait +static int RunProgramWithTimeout(StringRef ProgramPath, + ArrayRef<StringRef> Args, StringRef StdInFile, + StringRef StdOutFile, StringRef StdErrFile, + unsigned NumSeconds = 0, + unsigned MemoryLimit = 0, + std::string *ErrMsg = nullptr) { + Optional<StringRef> Redirects[3] = {StdInFile, StdOutFile, StdErrFile}; + return sys::ExecuteAndWait(ProgramPath, Args, None, Redirects, NumSeconds, + MemoryLimit, ErrMsg); +} + +/// RunProgramRemotelyWithTimeout - This function runs the given program +/// remotely using the given remote client and the sys::Program::ExecuteAndWait. +/// Returns the remote program exit code or reports a remote client error if it +/// fails. Remote client is required to return 255 if it failed or program exit +/// code otherwise. +/// @see sys::Program::ExecuteAndWait +static int RunProgramRemotelyWithTimeout( + StringRef RemoteClientPath, ArrayRef<StringRef> Args, StringRef StdInFile, + StringRef StdOutFile, StringRef StdErrFile, unsigned NumSeconds = 0, + unsigned MemoryLimit = 0) { + Optional<StringRef> Redirects[3] = {StdInFile, StdOutFile, StdErrFile}; + + // Run the program remotely with the remote client + int ReturnCode = sys::ExecuteAndWait(RemoteClientPath, Args, None, Redirects, + NumSeconds, MemoryLimit); + + // Has the remote client fail? + if (255 == ReturnCode) { + std::ostringstream OS; + OS << "\nError running remote client:\n "; + for (StringRef Arg : Args) + OS << " " << Arg.str(); + OS << "\n"; + + // The error message is in the output file, let's print it out from there. + std::string StdOutFileName = StdOutFile.str(); + std::ifstream ErrorFile(StdOutFileName.c_str()); + if (ErrorFile) { + std::copy(std::istreambuf_iterator<char>(ErrorFile), + std::istreambuf_iterator<char>(), + std::ostreambuf_iterator<char>(OS)); + ErrorFile.close(); + } + + errs() << OS.str(); + } + + return ReturnCode; +} + +static Error ProcessFailure(StringRef ProgPath, ArrayRef<StringRef> Args, + unsigned Timeout = 0, unsigned MemoryLimit = 0) { + std::ostringstream OS; + OS << "\nError running tool:\n "; + for (StringRef Arg : Args) + OS << " " << Arg.str(); + OS << "\n"; + + // Rerun the compiler, capturing any error messages to print them. + SmallString<128> ErrorFilename; + std::error_code EC = sys::fs::createTemporaryFile( + "bugpoint.program_error_messages", "", ErrorFilename); + if (EC) { + errs() << "Error making unique filename: " << EC.message() << "\n"; + exit(1); + } + + RunProgramWithTimeout(ProgPath, Args, "", ErrorFilename.str(), + ErrorFilename.str(), Timeout, MemoryLimit); + // FIXME: check return code ? + + // Print out the error messages generated by CC if possible... + std::ifstream ErrorFile(ErrorFilename.c_str()); + if (ErrorFile) { + std::copy(std::istreambuf_iterator<char>(ErrorFile), + std::istreambuf_iterator<char>(), + std::ostreambuf_iterator<char>(OS)); + ErrorFile.close(); + } + + sys::fs::remove(ErrorFilename.c_str()); + return make_error<StringError>(OS.str(), inconvertibleErrorCode()); +} + +//===---------------------------------------------------------------------===// +// LLI Implementation of AbstractIntepreter interface +// +namespace { +class LLI : public AbstractInterpreter { + std::string LLIPath; // The path to the LLI executable + std::vector<std::string> ToolArgs; // Args to pass to LLI +public: + LLI(const std::string &Path, const std::vector<std::string> *Args) + : LLIPath(Path) { + ToolArgs.clear(); + if (Args) { + ToolArgs = *Args; + } + } + + Expected<int> ExecuteProgram( + const std::string &Bitcode, const std::vector<std::string> &Args, + const std::string &InputFile, const std::string &OutputFile, + const std::vector<std::string> &CCArgs, + const std::vector<std::string> &SharedLibs = std::vector<std::string>(), + unsigned Timeout = 0, unsigned MemoryLimit = 0) override; +}; +} + +Expected<int> LLI::ExecuteProgram(const std::string &Bitcode, + const std::vector<std::string> &Args, + const std::string &InputFile, + const std::string &OutputFile, + const std::vector<std::string> &CCArgs, + const std::vector<std::string> &SharedLibs, + unsigned Timeout, unsigned MemoryLimit) { + std::vector<StringRef> LLIArgs; + LLIArgs.push_back(LLIPath.c_str()); + LLIArgs.push_back("-force-interpreter=true"); + + for (std::vector<std::string>::const_iterator i = SharedLibs.begin(), + e = SharedLibs.end(); + i != e; ++i) { + LLIArgs.push_back("-load"); + LLIArgs.push_back(*i); + } + + // Add any extra LLI args. + for (unsigned i = 0, e = ToolArgs.size(); i != e; ++i) + LLIArgs.push_back(ToolArgs[i]); + + LLIArgs.push_back(Bitcode); + // Add optional parameters to the running program from Argv + for (unsigned i = 0, e = Args.size(); i != e; ++i) + LLIArgs.push_back(Args[i]); + + outs() << "<lli>"; + outs().flush(); + LLVM_DEBUG(errs() << "\nAbout to run:\t"; + for (unsigned i = 0, e = LLIArgs.size() - 1; i != e; ++i) errs() + << " " << LLIArgs[i]; + errs() << "\n";); + return RunProgramWithTimeout(LLIPath, LLIArgs, InputFile, OutputFile, + OutputFile, Timeout, MemoryLimit); +} + +void AbstractInterpreter::anchor() {} + +ErrorOr<std::string> llvm::FindProgramByName(const std::string &ExeName, + const char *Argv0, + void *MainAddr) { + // Check the directory that the calling program is in. We can do + // this if ProgramPath contains at least one / character, indicating that it + // is a relative path to the executable itself. + std::string Main = sys::fs::getMainExecutable(Argv0, MainAddr); + StringRef Result = sys::path::parent_path(Main); + if (ErrorOr<std::string> Path = sys::findProgramByName(ExeName, Result)) + return *Path; + + // Check the user PATH. + return sys::findProgramByName(ExeName); +} + +// LLI create method - Try to find the LLI executable +AbstractInterpreter * +AbstractInterpreter::createLLI(const char *Argv0, std::string &Message, + const std::vector<std::string> *ToolArgs) { + if (ErrorOr<std::string> LLIPath = + FindProgramByName("lli", Argv0, (void *)(intptr_t)&createLLI)) { + Message = "Found lli: " + *LLIPath + "\n"; + return new LLI(*LLIPath, ToolArgs); + } else { + Message = LLIPath.getError().message() + "\n"; + return nullptr; + } +} + +//===---------------------------------------------------------------------===// +// Custom compiler command implementation of AbstractIntepreter interface +// +// Allows using a custom command for compiling the bitcode, thus allows, for +// example, to compile a bitcode fragment without linking or executing, then +// using a custom wrapper script to check for compiler errors. +namespace { +class CustomCompiler : public AbstractInterpreter { + std::string CompilerCommand; + std::vector<std::string> CompilerArgs; + +public: + CustomCompiler(const std::string &CompilerCmd, + std::vector<std::string> CompArgs) + : CompilerCommand(CompilerCmd), CompilerArgs(std::move(CompArgs)) {} + + Error compileProgram(const std::string &Bitcode, unsigned Timeout = 0, + unsigned MemoryLimit = 0) override; + + Expected<int> ExecuteProgram( + const std::string &Bitcode, const std::vector<std::string> &Args, + const std::string &InputFile, const std::string &OutputFile, + const std::vector<std::string> &CCArgs = std::vector<std::string>(), + const std::vector<std::string> &SharedLibs = std::vector<std::string>(), + unsigned Timeout = 0, unsigned MemoryLimit = 0) override { + return make_error<StringError>( + "Execution not supported with -compile-custom", + inconvertibleErrorCode()); + } +}; +} + +Error CustomCompiler::compileProgram(const std::string &Bitcode, + unsigned Timeout, unsigned MemoryLimit) { + + std::vector<StringRef> ProgramArgs; + ProgramArgs.push_back(CompilerCommand.c_str()); + + for (std::size_t i = 0; i < CompilerArgs.size(); ++i) + ProgramArgs.push_back(CompilerArgs.at(i).c_str()); + ProgramArgs.push_back(Bitcode); + + // Add optional parameters to the running program from Argv + for (unsigned i = 0, e = CompilerArgs.size(); i != e; ++i) + ProgramArgs.push_back(CompilerArgs[i].c_str()); + + if (RunProgramWithTimeout(CompilerCommand, ProgramArgs, "", "", "", Timeout, + MemoryLimit)) + return ProcessFailure(CompilerCommand, ProgramArgs, Timeout, MemoryLimit); + return Error::success(); +} + +//===---------------------------------------------------------------------===// +// Custom execution command implementation of AbstractIntepreter interface +// +// Allows using a custom command for executing the bitcode, thus allows, +// for example, to invoke a cross compiler for code generation followed by +// a simulator that executes the generated binary. +namespace { +class CustomExecutor : public AbstractInterpreter { + std::string ExecutionCommand; + std::vector<std::string> ExecutorArgs; + +public: + CustomExecutor(const std::string &ExecutionCmd, + std::vector<std::string> ExecArgs) + : ExecutionCommand(ExecutionCmd), ExecutorArgs(std::move(ExecArgs)) {} + + Expected<int> ExecuteProgram( + const std::string &Bitcode, const std::vector<std::string> &Args, + const std::string &InputFile, const std::string &OutputFile, + const std::vector<std::string> &CCArgs, + const std::vector<std::string> &SharedLibs = std::vector<std::string>(), + unsigned Timeout = 0, unsigned MemoryLimit = 0) override; +}; +} + +Expected<int> CustomExecutor::ExecuteProgram( + const std::string &Bitcode, const std::vector<std::string> &Args, + const std::string &InputFile, const std::string &OutputFile, + const std::vector<std::string> &CCArgs, + const std::vector<std::string> &SharedLibs, unsigned Timeout, + unsigned MemoryLimit) { + + std::vector<StringRef> ProgramArgs; + ProgramArgs.push_back(ExecutionCommand); + + for (std::size_t i = 0; i < ExecutorArgs.size(); ++i) + ProgramArgs.push_back(ExecutorArgs[i]); + ProgramArgs.push_back(Bitcode); + + // Add optional parameters to the running program from Argv + for (unsigned i = 0, e = Args.size(); i != e; ++i) + ProgramArgs.push_back(Args[i]); + + return RunProgramWithTimeout(ExecutionCommand, ProgramArgs, InputFile, + OutputFile, OutputFile, Timeout, MemoryLimit); +} + +// Tokenize the CommandLine to the command and the args to allow +// defining a full command line as the command instead of just the +// executed program. We cannot just pass the whole string after the command +// as a single argument because then the program sees only a single +// command line argument (with spaces in it: "foo bar" instead +// of "foo" and "bar"). +// +// Spaces are used as a delimiter; however repeated, leading, and trailing +// whitespace are ignored. Simple escaping is allowed via the '\' +// character, as seen below: +// +// Two consecutive '\' evaluate to a single '\'. +// A space after a '\' evaluates to a space that is not interpreted as a +// delimiter. +// Any other instances of the '\' character are removed. +// +// Example: +// '\\' -> '\' +// '\ ' -> ' ' +// 'exa\mple' -> 'example' +// +static void lexCommand(const char *Argv0, std::string &Message, + const std::string &CommandLine, std::string &CmdPath, + std::vector<std::string> &Args) { + + std::string Token; + std::string Command; + bool FoundPath = false; + + // first argument is the PATH. + // Skip repeated whitespace, leading whitespace and trailing whitespace. + for (std::size_t Pos = 0u; Pos <= CommandLine.size(); ++Pos) { + if ('\\' == CommandLine[Pos]) { + if (Pos + 1 < CommandLine.size()) + Token.push_back(CommandLine[++Pos]); + + continue; + } + if (' ' == CommandLine[Pos] || CommandLine.size() == Pos) { + if (Token.empty()) + continue; + + if (!FoundPath) { + Command = Token; + FoundPath = true; + Token.clear(); + continue; + } + + Args.push_back(Token); + Token.clear(); + continue; + } + Token.push_back(CommandLine[Pos]); + } + + auto Path = FindProgramByName(Command, Argv0, (void *)(intptr_t)&lexCommand); + if (!Path) { + Message = std::string("Cannot find '") + Command + + "' in PATH: " + Path.getError().message() + "\n"; + return; + } + CmdPath = *Path; + + Message = "Found command in: " + CmdPath + "\n"; +} + +// Custom execution environment create method, takes the execution command +// as arguments +AbstractInterpreter *AbstractInterpreter::createCustomCompiler( + const char *Argv0, std::string &Message, + const std::string &CompileCommandLine) { + + std::string CmdPath; + std::vector<std::string> Args; + lexCommand(Argv0, Message, CompileCommandLine, CmdPath, Args); + if (CmdPath.empty()) + return nullptr; + + return new CustomCompiler(CmdPath, Args); +} + +// Custom execution environment create method, takes the execution command +// as arguments +AbstractInterpreter * +AbstractInterpreter::createCustomExecutor(const char *Argv0, + std::string &Message, + const std::string &ExecCommandLine) { + + std::string CmdPath; + std::vector<std::string> Args; + lexCommand(Argv0, Message, ExecCommandLine, CmdPath, Args); + if (CmdPath.empty()) + return nullptr; + + return new CustomExecutor(CmdPath, Args); +} + +//===----------------------------------------------------------------------===// +// LLC Implementation of AbstractIntepreter interface +// +Expected<CC::FileType> LLC::OutputCode(const std::string &Bitcode, + std::string &OutputAsmFile, + unsigned Timeout, unsigned MemoryLimit) { + const char *Suffix = (UseIntegratedAssembler ? ".llc.o" : ".llc.s"); + + SmallString<128> UniqueFile; + std::error_code EC = + sys::fs::createUniqueFile(Bitcode + "-%%%%%%%" + Suffix, UniqueFile); + if (EC) { + errs() << "Error making unique filename: " << EC.message() << "\n"; + exit(1); + } + OutputAsmFile = UniqueFile.str(); + std::vector<StringRef> LLCArgs; + LLCArgs.push_back(LLCPath); + + // Add any extra LLC args. + for (unsigned i = 0, e = ToolArgs.size(); i != e; ++i) + LLCArgs.push_back(ToolArgs[i]); + + LLCArgs.push_back("-o"); + LLCArgs.push_back(OutputAsmFile); // Output to the Asm file + LLCArgs.push_back(Bitcode); // This is the input bitcode + + if (UseIntegratedAssembler) + LLCArgs.push_back("-filetype=obj"); + + outs() << (UseIntegratedAssembler ? "<llc-ia>" : "<llc>"); + outs().flush(); + LLVM_DEBUG(errs() << "\nAbout to run:\t"; + for (unsigned i = 0, e = LLCArgs.size() - 1; i != e; ++i) errs() + << " " << LLCArgs[i]; + errs() << "\n";); + if (RunProgramWithTimeout(LLCPath, LLCArgs, "", "", "", Timeout, MemoryLimit)) + return ProcessFailure(LLCPath, LLCArgs, Timeout, MemoryLimit); + return UseIntegratedAssembler ? CC::ObjectFile : CC::AsmFile; +} + +Error LLC::compileProgram(const std::string &Bitcode, unsigned Timeout, + unsigned MemoryLimit) { + std::string OutputAsmFile; + Expected<CC::FileType> Result = + OutputCode(Bitcode, OutputAsmFile, Timeout, MemoryLimit); + sys::fs::remove(OutputAsmFile); + if (Error E = Result.takeError()) + return E; + return Error::success(); +} + +Expected<int> LLC::ExecuteProgram(const std::string &Bitcode, + const std::vector<std::string> &Args, + const std::string &InputFile, + const std::string &OutputFile, + const std::vector<std::string> &ArgsForCC, + const std::vector<std::string> &SharedLibs, + unsigned Timeout, unsigned MemoryLimit) { + + std::string OutputAsmFile; + Expected<CC::FileType> FileKind = + OutputCode(Bitcode, OutputAsmFile, Timeout, MemoryLimit); + FileRemover OutFileRemover(OutputAsmFile, !SaveTemps); + if (Error E = FileKind.takeError()) + return std::move(E); + + std::vector<std::string> CCArgs(ArgsForCC); + CCArgs.insert(CCArgs.end(), SharedLibs.begin(), SharedLibs.end()); + + // Assuming LLC worked, compile the result with CC and run it. + return cc->ExecuteProgram(OutputAsmFile, Args, *FileKind, InputFile, + OutputFile, CCArgs, Timeout, MemoryLimit); +} + +/// createLLC - Try to find the LLC executable +/// +LLC *AbstractInterpreter::createLLC(const char *Argv0, std::string &Message, + const std::string &CCBinary, + const std::vector<std::string> *Args, + const std::vector<std::string> *CCArgs, + bool UseIntegratedAssembler) { + ErrorOr<std::string> LLCPath = + FindProgramByName("llc", Argv0, (void *)(intptr_t)&createLLC); + if (!LLCPath) { + Message = LLCPath.getError().message() + "\n"; + return nullptr; + } + + CC *cc = CC::create(Argv0, Message, CCBinary, CCArgs); + if (!cc) { + errs() << Message << "\n"; + exit(1); + } + Message = "Found llc: " + *LLCPath + "\n"; + return new LLC(*LLCPath, cc, Args, UseIntegratedAssembler); +} + +//===---------------------------------------------------------------------===// +// JIT Implementation of AbstractIntepreter interface +// +namespace { +class JIT : public AbstractInterpreter { + std::string LLIPath; // The path to the LLI executable + std::vector<std::string> ToolArgs; // Args to pass to LLI +public: + JIT(const std::string &Path, const std::vector<std::string> *Args) + : LLIPath(Path) { + ToolArgs.clear(); + if (Args) { + ToolArgs = *Args; + } + } + + Expected<int> ExecuteProgram( + const std::string &Bitcode, const std::vector<std::string> &Args, + const std::string &InputFile, const std::string &OutputFile, + const std::vector<std::string> &CCArgs = std::vector<std::string>(), + const std::vector<std::string> &SharedLibs = std::vector<std::string>(), + unsigned Timeout = 0, unsigned MemoryLimit = 0) override; +}; +} + +Expected<int> JIT::ExecuteProgram(const std::string &Bitcode, + const std::vector<std::string> &Args, + const std::string &InputFile, + const std::string &OutputFile, + const std::vector<std::string> &CCArgs, + const std::vector<std::string> &SharedLibs, + unsigned Timeout, unsigned MemoryLimit) { + // Construct a vector of parameters, incorporating those from the command-line + std::vector<StringRef> JITArgs; + JITArgs.push_back(LLIPath.c_str()); + JITArgs.push_back("-force-interpreter=false"); + + // Add any extra LLI args. + for (unsigned i = 0, e = ToolArgs.size(); i != e; ++i) + JITArgs.push_back(ToolArgs[i]); + + for (unsigned i = 0, e = SharedLibs.size(); i != e; ++i) { + JITArgs.push_back("-load"); + JITArgs.push_back(SharedLibs[i]); + } + JITArgs.push_back(Bitcode.c_str()); + // Add optional parameters to the running program from Argv + for (unsigned i = 0, e = Args.size(); i != e; ++i) + JITArgs.push_back(Args[i]); + + outs() << "<jit>"; + outs().flush(); + LLVM_DEBUG(errs() << "\nAbout to run:\t"; + for (unsigned i = 0, e = JITArgs.size() - 1; i != e; ++i) errs() + << " " << JITArgs[i]; + errs() << "\n";); + LLVM_DEBUG(errs() << "\nSending output to " << OutputFile << "\n"); + return RunProgramWithTimeout(LLIPath, JITArgs, InputFile, OutputFile, + OutputFile, Timeout, MemoryLimit); +} + +/// createJIT - Try to find the LLI executable +/// +AbstractInterpreter * +AbstractInterpreter::createJIT(const char *Argv0, std::string &Message, + const std::vector<std::string> *Args) { + if (ErrorOr<std::string> LLIPath = + FindProgramByName("lli", Argv0, (void *)(intptr_t)&createJIT)) { + Message = "Found lli: " + *LLIPath + "\n"; + return new JIT(*LLIPath, Args); + } else { + Message = LLIPath.getError().message() + "\n"; + return nullptr; + } +} + +//===---------------------------------------------------------------------===// +// CC abstraction +// + +static bool IsARMArchitecture(std::vector<StringRef> Args) { + for (size_t I = 0; I < Args.size(); ++I) { + if (!Args[I].equals_lower("-arch")) + continue; + ++I; + if (I == Args.size()) + break; + if (Args[I].startswith_lower("arm")) + return true; + } + + return false; +} + +Expected<int> CC::ExecuteProgram(const std::string &ProgramFile, + const std::vector<std::string> &Args, + FileType fileType, + const std::string &InputFile, + const std::string &OutputFile, + const std::vector<std::string> &ArgsForCC, + unsigned Timeout, unsigned MemoryLimit) { + std::vector<StringRef> CCArgs; + + CCArgs.push_back(CCPath); + + if (TargetTriple.getArch() == Triple::x86) + CCArgs.push_back("-m32"); + + for (std::vector<std::string>::const_iterator I = ccArgs.begin(), + E = ccArgs.end(); + I != E; ++I) + CCArgs.push_back(*I); + + // Specify -x explicitly in case the extension is wonky + if (fileType != ObjectFile) { + CCArgs.push_back("-x"); + if (fileType == CFile) { + CCArgs.push_back("c"); + CCArgs.push_back("-fno-strict-aliasing"); + } else { + CCArgs.push_back("assembler"); + + // For ARM architectures we don't want this flag. bugpoint isn't + // explicitly told what architecture it is working on, so we get + // it from cc flags + if (TargetTriple.isOSDarwin() && !IsARMArchitecture(CCArgs)) + CCArgs.push_back("-force_cpusubtype_ALL"); + } + } + + CCArgs.push_back(ProgramFile); // Specify the input filename. + + CCArgs.push_back("-x"); + CCArgs.push_back("none"); + CCArgs.push_back("-o"); + + SmallString<128> OutputBinary; + std::error_code EC = + sys::fs::createUniqueFile(ProgramFile + "-%%%%%%%.cc.exe", OutputBinary); + if (EC) { + errs() << "Error making unique filename: " << EC.message() << "\n"; + exit(1); + } + CCArgs.push_back(OutputBinary); // Output to the right file... + + // Add any arguments intended for CC. We locate them here because this is + // most likely -L and -l options that need to come before other libraries but + // after the source. Other options won't be sensitive to placement on the + // command line, so this should be safe. + for (unsigned i = 0, e = ArgsForCC.size(); i != e; ++i) + CCArgs.push_back(ArgsForCC[i]); + + CCArgs.push_back("-lm"); // Hard-code the math library... + CCArgs.push_back("-O2"); // Optimize the program a bit... + if (TargetTriple.getArch() == Triple::sparc) + CCArgs.push_back("-mcpu=v9"); + + outs() << "<CC>"; + outs().flush(); + LLVM_DEBUG(errs() << "\nAbout to run:\t"; + for (unsigned i = 0, e = CCArgs.size() - 1; i != e; ++i) errs() + << " " << CCArgs[i]; + errs() << "\n";); + if (RunProgramWithTimeout(CCPath, CCArgs, "", "", "")) + return ProcessFailure(CCPath, CCArgs); + + std::vector<StringRef> ProgramArgs; + + // Declared here so that the destructor only runs after + // ProgramArgs is used. + std::string Exec; + + if (RemoteClientPath.empty()) + ProgramArgs.push_back(OutputBinary); + else { + ProgramArgs.push_back(RemoteClientPath); + ProgramArgs.push_back(RemoteHost); + if (!RemoteUser.empty()) { + ProgramArgs.push_back("-l"); + ProgramArgs.push_back(RemoteUser); + } + if (!RemotePort.empty()) { + ProgramArgs.push_back("-p"); + ProgramArgs.push_back(RemotePort); + } + if (!RemoteExtra.empty()) { + ProgramArgs.push_back(RemoteExtra); + } + + // Full path to the binary. We need to cd to the exec directory because + // there is a dylib there that the exec expects to find in the CWD + char *env_pwd = getenv("PWD"); + Exec = "cd "; + Exec += env_pwd; + Exec += "; ./"; + Exec += OutputBinary.c_str(); + ProgramArgs.push_back(Exec); + } + + // Add optional parameters to the running program from Argv + for (unsigned i = 0, e = Args.size(); i != e; ++i) + ProgramArgs.push_back(Args[i]); + + // Now that we have a binary, run it! + outs() << "<program>"; + outs().flush(); + LLVM_DEBUG( + errs() << "\nAbout to run:\t"; + for (unsigned i = 0, e = ProgramArgs.size() - 1; i != e; ++i) errs() + << " " << ProgramArgs[i]; + errs() << "\n";); + + FileRemover OutputBinaryRemover(OutputBinary.str(), !SaveTemps); + + if (RemoteClientPath.empty()) { + LLVM_DEBUG(errs() << "<run locally>"); + std::string Error; + int ExitCode = RunProgramWithTimeout(OutputBinary.str(), ProgramArgs, + InputFile, OutputFile, OutputFile, + Timeout, MemoryLimit, &Error); + // Treat a signal (usually SIGSEGV) or timeout as part of the program output + // so that crash-causing miscompilation is handled seamlessly. + if (ExitCode < -1) { + std::ofstream outFile(OutputFile.c_str(), std::ios_base::app); + outFile << Error << '\n'; + outFile.close(); + } + return ExitCode; + } else { + outs() << "<run remotely>"; + outs().flush(); + return RunProgramRemotelyWithTimeout(RemoteClientPath, ProgramArgs, + InputFile, OutputFile, OutputFile, + Timeout, MemoryLimit); + } +} + +Error CC::MakeSharedObject(const std::string &InputFile, FileType fileType, + std::string &OutputFile, + const std::vector<std::string> &ArgsForCC) { + SmallString<128> UniqueFilename; + std::error_code EC = sys::fs::createUniqueFile( + InputFile + "-%%%%%%%" + LTDL_SHLIB_EXT, UniqueFilename); + if (EC) { + errs() << "Error making unique filename: " << EC.message() << "\n"; + exit(1); + } + OutputFile = UniqueFilename.str(); + + std::vector<StringRef> CCArgs; + + CCArgs.push_back(CCPath); + + if (TargetTriple.getArch() == Triple::x86) + CCArgs.push_back("-m32"); + + for (std::vector<std::string>::const_iterator I = ccArgs.begin(), + E = ccArgs.end(); + I != E; ++I) + CCArgs.push_back(*I); + + // Compile the C/asm file into a shared object + if (fileType != ObjectFile) { + CCArgs.push_back("-x"); + CCArgs.push_back(fileType == AsmFile ? "assembler" : "c"); + } + CCArgs.push_back("-fno-strict-aliasing"); + CCArgs.push_back(InputFile); // Specify the input filename. + CCArgs.push_back("-x"); + CCArgs.push_back("none"); + if (TargetTriple.getArch() == Triple::sparc) + CCArgs.push_back("-G"); // Compile a shared library, `-G' for Sparc + else if (TargetTriple.isOSDarwin()) { + // link all source files into a single module in data segment, rather than + // generating blocks. dynamic_lookup requires that you set + // MACOSX_DEPLOYMENT_TARGET=10.3 in your env. FIXME: it would be better for + // bugpoint to just pass that in the environment of CC. + CCArgs.push_back("-single_module"); + CCArgs.push_back("-dynamiclib"); // `-dynamiclib' for MacOS X/PowerPC + CCArgs.push_back("-undefined"); + CCArgs.push_back("dynamic_lookup"); + } else + CCArgs.push_back("-shared"); // `-shared' for Linux/X86, maybe others + + if (TargetTriple.getArch() == Triple::x86_64) + CCArgs.push_back("-fPIC"); // Requires shared objs to contain PIC + + if (TargetTriple.getArch() == Triple::sparc) + CCArgs.push_back("-mcpu=v9"); + + CCArgs.push_back("-o"); + CCArgs.push_back(OutputFile); // Output to the right filename. + CCArgs.push_back("-O2"); // Optimize the program a bit. + + // Add any arguments intended for CC. We locate them here because this is + // most likely -L and -l options that need to come before other libraries but + // after the source. Other options won't be sensitive to placement on the + // command line, so this should be safe. + for (unsigned i = 0, e = ArgsForCC.size(); i != e; ++i) + CCArgs.push_back(ArgsForCC[i]); + + outs() << "<CC>"; + outs().flush(); + LLVM_DEBUG(errs() << "\nAbout to run:\t"; + for (unsigned i = 0, e = CCArgs.size() - 1; i != e; ++i) errs() + << " " << CCArgs[i]; + errs() << "\n";); + if (RunProgramWithTimeout(CCPath, CCArgs, "", "", "")) + return ProcessFailure(CCPath, CCArgs); + return Error::success(); +} + +/// create - Try to find the CC executable +/// +CC *CC::create(const char *Argv0, std::string &Message, + const std::string &CCBinary, + const std::vector<std::string> *Args) { + auto CCPath = FindProgramByName(CCBinary, Argv0, (void *)(intptr_t)&create); + if (!CCPath) { + Message = "Cannot find `" + CCBinary + "' in PATH: " + + CCPath.getError().message() + "\n"; + return nullptr; + } + + std::string RemoteClientPath; + if (!RemoteClient.empty()) { + auto Path = sys::findProgramByName(RemoteClient); + if (!Path) { + Message = "Cannot find `" + RemoteClient + "' in PATH: " + + Path.getError().message() + "\n"; + return nullptr; + } + RemoteClientPath = *Path; + } + + Message = "Found CC: " + *CCPath + "\n"; + return new CC(*CCPath, RemoteClientPath, Args); +} |