+++ /dev/null
-//===--- llvmc.cpp - The LLVM Compiler Driver -------------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This tool provides a single point of access to the LLVM compilation tools.
-// It has many options. To discover the options supported please refer to the
-// tools' manual page (docs/CommandGuide/html/llvmc.html) or run the tool with
-// the --help option.
-//
-//===----------------------------------------------------------------------===//
-
-#include "CompilerDriver.h"
-#include "Configuration.h"
-#include "llvm/Pass.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/ManagedStatic.h"
-#include "llvm/System/Signals.h"
-#include <iostream>
-#include <cstring>
-using namespace llvm;
-
-//===----------------------------------------------------------------------===//
-//=== PHASE OPTIONS
-//===----------------------------------------------------------------------===//
-static cl::opt<CompilerDriver::Phases> FinalPhase(cl::Optional,
- cl::desc("Choose final phase of compilation:"),
- cl::init(CompilerDriver::LINKING),
- cl::values(
- clEnumValN(CompilerDriver::PREPROCESSING,"E",
- "Stop compilation after pre-processing phase"),
- clEnumValN(CompilerDriver::TRANSLATION, "t",
- "Stop compilation after translation phase"),
- clEnumValN(CompilerDriver::OPTIMIZATION,"c",
- "Stop compilation after optimization phase"),
- clEnumValN(CompilerDriver::ASSEMBLY,"S",
- "Stop compilation after assembly phase"),
- clEnumValEnd
- )
-);
-
-//===----------------------------------------------------------------------===//
-//=== OPTIMIZATION OPTIONS
-//===----------------------------------------------------------------------===//
-static cl::opt<CompilerDriver::OptimizationLevels> OptLevel(cl::ZeroOrMore,
- cl::desc("Choose level of optimization to apply:"),
- cl::init(CompilerDriver::OPT_FAST_COMPILE),
- cl::values(
- clEnumValN(CompilerDriver::OPT_FAST_COMPILE,"O0",
- "An alias for the -O1 option"),
- clEnumValN(CompilerDriver::OPT_FAST_COMPILE,"O1",
- "Optimize for compilation speed, not execution speed"),
- clEnumValN(CompilerDriver::OPT_SIMPLE,"O2",
- "Perform simple translation time optimizations"),
- clEnumValN(CompilerDriver::OPT_AGGRESSIVE,"O3",
- "Perform aggressive translation time optimizations"),
- clEnumValN(CompilerDriver::OPT_LINK_TIME,"O4",
- "Perform link time optimizations"),
- clEnumValN(CompilerDriver::OPT_AGGRESSIVE_LINK_TIME,"O5",
- "Perform aggressive link time optimizations"),
- clEnumValEnd
- )
-);
-
-//===----------------------------------------------------------------------===//
-//=== TOOL OPTIONS
-//===----------------------------------------------------------------------===//
-
-static cl::list<std::string> PreprocessorToolOpts("Tpre", cl::ZeroOrMore,
- cl::desc("Pass specific options to the pre-processor"),
- cl::value_desc("option"));
-
-static cl::alias PreprocessorToolOptsAlias("Wp,", cl::ZeroOrMore,
- cl::desc("Alias for -Tpre"), cl::aliasopt(PreprocessorToolOpts));
-
-static cl::list<std::string> TranslatorToolOpts("Ttrn", cl::ZeroOrMore,
- cl::desc("Pass specific options to the assembler"),
- cl::value_desc("option"));
-
-static cl::list<std::string> AssemblerToolOpts("Tasm", cl::ZeroOrMore,
- cl::desc("Pass specific options to the assembler"),
- cl::value_desc("option"));
-
-static cl::alias AssemblerToolOptsAlias("Wa,", cl::ZeroOrMore,
- cl::desc("Alias for -Tasm"), cl::aliasopt(AssemblerToolOpts));
-
-static cl::list<std::string> OptimizerToolOpts("Topt", cl::ZeroOrMore,
- cl::desc("Pass specific options to the optimizer"),
- cl::value_desc("option"));
-
-static cl::list<std::string> LinkerToolOpts("Tlnk", cl::ZeroOrMore,
- cl::desc("Pass specific options to the linker"),
- cl::value_desc("option"));
-
-static cl::alias LinkerToolOptsAlias("Wl,", cl::ZeroOrMore,
- cl::desc("Alias for -Tlnk"), cl::aliasopt(LinkerToolOpts));
-
-static cl::list<std::string> fOpts("f", cl::ZeroOrMore, cl::Prefix,
- cl::desc("Pass through -f options to compiler tools"),
- cl::value_desc("option"));
-
-static cl::list<std::string> MOpts("M", cl::ZeroOrMore, cl::Prefix,
- cl::desc("Pass through -M options to compiler tools"),
- cl::value_desc("option"));
-
-static cl::list<std::string> WOpts("W", cl::ZeroOrMore, cl::Prefix,
- cl::desc("Pass through -W options to compiler tools"),
- cl::value_desc("option"));
-
-static cl::list<std::string> BOpt("B", cl::ZeroOrMore, cl::Prefix,
- cl::desc("Specify path to find llvmc sub-tools"),
- cl::value_desc("dir"));
-
-//===----------------------------------------------------------------------===//
-//=== INPUT OPTIONS
-//===----------------------------------------------------------------------===//
-
-static cl::list<std::string> LibPaths("L", cl::Prefix,
- cl::desc("Specify a library search path"), cl::value_desc("dir"));
-
-static cl::list<std::string> Libraries("l", cl::Prefix,
- cl::desc("Specify base name of libraries to link to"), cl::value_desc("lib"));
-
-static cl::list<std::string> Includes("I", cl::Prefix,
- cl::desc("Specify location to search for included source"),
- cl::value_desc("dir"));
-
-static cl::list<std::string> Defines("D", cl::Prefix,
- cl::desc("Specify a pre-processor symbol to define"),
- cl::value_desc("symbol"));
-
-//===----------------------------------------------------------------------===//
-//=== OUTPUT OPTIONS
-//===----------------------------------------------------------------------===//
-
-static cl::opt<std::string> OutputFilename("o",
- cl::desc("Override output filename"), cl::value_desc("file"));
-
-static cl::opt<std::string> OutputMachine("m", cl::Prefix,
- cl::desc("Specify a target machine"), cl::value_desc("machine"));
-
-static cl::opt<bool> Native("native", cl::init(false),
- cl::desc("Generative native code instead of bitcode"));
-
-static cl::opt<bool> DebugOutput("g", cl::init(false),
- cl::desc("Generate objects that include debug symbols"));
-
-static cl::opt<bool> StripOutput("strip", cl::init(false),
- cl::desc("Strip all symbols from linked output file"));
-
-static cl::opt<std::string> PrintFileName("print-fname", cl::Optional,
- cl::value_desc("file"),
- cl::desc("Print the full path for the option's value"));
-
-//===----------------------------------------------------------------------===//
-//=== INFORMATION OPTIONS
-//===----------------------------------------------------------------------===//
-
-static cl::opt<bool> DryRun("dry-run", cl::Optional, cl::init(false),
- cl::desc("Do everything but perform the compilation actions"));
-
-static cl::alias DryRunAlias("y", cl::Optional,
- cl::desc("Alias for -dry-run"), cl::aliasopt(DryRun));
-
-static cl::opt<bool> Verbose("verbose", cl::Optional, cl::init(false),
- cl::desc("Print out each action taken"));
-
-static cl::alias VerboseAlias("v", cl::Optional,
- cl::desc("Alias for -verbose"), cl::aliasopt(Verbose));
-
-static cl::opt<bool> Debug("debug", cl::Optional, cl::init(false),
- cl::Hidden, cl::desc("Print out debugging information"));
-
-static cl::alias DebugAlias("d", cl::Optional,
- cl::desc("Alias for -debug"), cl::aliasopt(Debug));
-
-static cl::opt<bool> TimeActions("time-actions", cl::Optional, cl::init(false),
- cl::desc("Print execution time for each action taken"));
-
-static cl::opt<bool> ShowStats("stats", cl::Optional, cl::init(false),
- cl::desc("Print statistics accumulated during optimization"));
-
-//===----------------------------------------------------------------------===//
-//=== ADVANCED OPTIONS
-//===----------------------------------------------------------------------===//
-
-static cl::opt<std::string> ConfigDir("config-dir", cl::Optional,
- cl::desc("Specify configuration directory to override defaults"),
- cl::value_desc("dir"));
-
-static cl::opt<bool> EmitRawCode("emit-raw-code", cl::Hidden, cl::Optional,
- cl::desc("Emit raw, unoptimized code"));
-
-static cl::opt<bool> PipeCommands("pipe", cl::Optional,
- cl::desc("Invoke sub-commands by linking input/output with pipes"));
-
-static cl::opt<bool> KeepTemps("keep-temps", cl::Optional,
- cl::desc("Don't delete temporary files created by llvmc"));
-
-//===----------------------------------------------------------------------===//
-//=== POSITIONAL OPTIONS
-//===----------------------------------------------------------------------===//
-
-static cl::list<std::string> Files(cl::Positional, cl::ZeroOrMore,
- cl::desc("[Sources/objects/libraries]"));
-
-static cl::list<std::string> Languages("x", cl::ZeroOrMore,
- cl::desc("Specify the source language for subsequent files"),
- cl::value_desc("language"));
-
-//===----------------------------------------------------------------------===//
-//=== GetFileType - determine type of a file
-//===----------------------------------------------------------------------===//
-static const std::string GetFileType(const std::string& fname, unsigned pos) {
- static std::vector<std::string>::iterator langIt = Languages.begin();
- static std::string CurrLang = "";
-
- // If a -x LANG option has been specified ..
- if (langIt != Languages.end())
- // If the -x LANG option came before the current file on command line
- if (Languages.getPosition( langIt - Languages.begin() ) < pos) {
- // use that language
- CurrLang = *langIt++;
- return CurrLang;
- }
-
- // If there's a current language in effect
- if (!CurrLang.empty())
- return CurrLang; // use that language
-
- // otherwise just determine lang from the filename's suffix
- return fname.substr(fname.rfind('.', fname.size()) + 1);
-}
-
-static void handleTerminatingOptions(CompilerDriver* CD) {
- if (!PrintFileName.empty()) {
- sys::Path path = CD->GetPathForLinkageItem(PrintFileName, false);
- std::string p = path.toString();
- if (p.empty())
- std::cout << "Can't locate `" << PrintFileName << "'.\n";
- else
- std::cout << p << '\n';
- exit(0);
- }
-}
-
-/// @brief The main program for llvmc
-int main(int argc, char **argv) {
- llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
- // Make sure we print stack trace if we get bad signals
- sys::PrintStackTraceOnErrorSignal();
-
- std::cout << "NOTE: llvmc is highly experimental and mostly useless right "
- "now.\nPlease use llvm-gcc directly instead.\n\n";
-
- try {
-
- // Parse the command line options
- cl::ParseCommandLineOptions(argc, argv,
- "LLVM Compiler Driver (llvmc)\n\n"
- " This program provides easy invocation of the LLVM tool set\n"
- " and other compiler tools.\n"
- );
-
- // Deal with unimplemented options.
- if (PipeCommands)
- throw std::string("Not implemented yet: -pipe");
-
- if (OutputFilename.empty())
- if (OptLevel == CompilerDriver::LINKING)
- OutputFilename = "a.out";
-
- // Construct the ConfigDataProvider object
- LLVMC_ConfigDataProvider Provider;
- Provider.setConfigDir(sys::Path(ConfigDir));
-
- // Construct the CompilerDriver object
- CompilerDriver* CD = CompilerDriver::Get(Provider);
-
- // If the LLVM_LIB_SEARCH_PATH environment variable is
- // set, append it to the list of places to search for libraries
- char *srchPath = getenv("LLVM_LIB_SEARCH_PATH");
- if (srchPath != NULL && strlen(srchPath) != 0)
- LibPaths.push_back(std::string(srchPath));
-
- // Set the driver flags based on command line options
- unsigned flags = 0;
- if (Verbose) flags |= CompilerDriver::VERBOSE_FLAG;
- if (Debug) flags |= CompilerDriver::DEBUG_FLAG;
- if (DryRun) flags |= CompilerDriver::DRY_RUN_FLAG;
- if (Native) flags |= CompilerDriver::EMIT_NATIVE_FLAG;
- if (EmitRawCode) flags |= CompilerDriver::EMIT_RAW_FLAG;
- if (KeepTemps) flags |= CompilerDriver::KEEP_TEMPS_FLAG;
- if (ShowStats) flags |= CompilerDriver::SHOW_STATS_FLAG;
- if (TimeActions) flags |= CompilerDriver::TIME_ACTIONS_FLAG;
- if (StripOutput) flags |= CompilerDriver::STRIP_OUTPUT_FLAG;
- CD->setDriverFlags(flags);
-
- // Specify required parameters
- CD->setFinalPhase(FinalPhase);
- CD->setOptimization(OptLevel);
- CD->setOutputMachine(OutputMachine);
- CD->setIncludePaths(Includes);
- CD->setSymbolDefines(Defines);
- CD->setLibraryPaths(LibPaths);
- CD->setfPassThrough(fOpts);
- CD->setMPassThrough(MOpts);
- CD->setWPassThrough(WOpts);
-
- // Provide additional tool arguments
- if (!PreprocessorToolOpts.empty())
- CD->setPhaseArgs(CompilerDriver::PREPROCESSING, PreprocessorToolOpts);
- if (!TranslatorToolOpts.empty())
- CD->setPhaseArgs(CompilerDriver::TRANSLATION, TranslatorToolOpts);
- if (!OptimizerToolOpts.empty())
- CD->setPhaseArgs(CompilerDriver::OPTIMIZATION, OptimizerToolOpts);
- if (!AssemblerToolOpts.empty())
- CD->setPhaseArgs(CompilerDriver::ASSEMBLY,AssemblerToolOpts);
- if (!LinkerToolOpts.empty())
- CD->setPhaseArgs(CompilerDriver::LINKING, LinkerToolOpts);
-
- // Check for options that cause us to terminate before any significant work
- // is done.
- handleTerminatingOptions(CD);
-
- // Prepare the list of files to be compiled by the CompilerDriver.
- CompilerDriver::InputList InpList;
- std::vector<std::string>::iterator fileIt = Files.begin();
- std::vector<std::string>::iterator libIt = Libraries.begin();
- unsigned libPos = 0, filePos = 0;
- while ( 1 ) {
- if (libIt != Libraries.end())
- libPos = Libraries.getPosition( libIt - Libraries.begin() );
- else
- libPos = 0;
- if (fileIt != Files.end())
- filePos = Files.getPosition(fileIt - Files.begin());
- else
- filePos = 0;
-
- if (filePos != 0 && (libPos == 0 || filePos < libPos)) {
- // Add a source file
- InpList.push_back(std::make_pair(*fileIt,
- GetFileType(*fileIt, filePos)));
- ++fileIt;
- } else if ( libPos != 0 && (filePos == 0 || libPos < filePos) ) {
- // Add a library
- InpList.push_back(std::make_pair(*libIt++, ""));
- }
- else
- break; // we're done with the list
- }
-
- // Tell the driver to do its thing
- std::string ErrMsg;
- int result = CD->execute(InpList, sys::Path(OutputFilename), ErrMsg);
- if (result != 0) {
- std::cerr << argv[0] << ": " << ErrMsg << '\n';
- return result;
- }
-
- // All is good, return success
- return 0;
- } catch (const std::string& msg) {
- std::cerr << argv[0] << ": " << msg << '\n';
- } catch (...) {
- std::cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
- }
- return 1;
-}
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