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llvm-project/clang/lib/Frontend/CompilerInvocation.cpp

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//===--- CompilerInvocation.cpp -------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "clang/Frontend/CompilerInvocation.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/Version.h"
#include "clang/Driver/Arg.h"
#include "clang/Driver/ArgList.h"
#include "clang/Driver/CC1Options.h"
#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/OptTable.h"
#include "clang/Driver/Option.h"
#include "clang/Frontend/CompilerInvocation.h"
#include "clang/Frontend/LangStandard.h"
#include "clang/Frontend/PCHReader.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/System/Host.h"
#include "llvm/System/Path.h"
using namespace clang;
static const char *getAnalysisName(Analyses Kind) {
switch (Kind) {
default:
llvm_unreachable("Unknown analysis kind!");
#define ANALYSIS(NAME, CMDFLAG, DESC, SCOPE)\
case NAME: return "-" CMDFLAG;
#include "clang/Frontend/Analyses.def"
}
}
static const char *getAnalysisStoreName(AnalysisStores Kind) {
switch (Kind) {
default:
llvm_unreachable("Unknown analysis store!");
#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
case NAME##Model: return CMDFLAG;
#include "clang/Frontend/Analyses.def"
}
}
static const char *getAnalysisConstraintName(AnalysisConstraints Kind) {
switch (Kind) {
default:
llvm_unreachable("Unknown analysis constraints!");
#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
case NAME##Model: return CMDFLAG;
#include "clang/Frontend/Analyses.def"
}
}
static const char *getAnalysisDiagClientName(AnalysisDiagClients Kind) {
switch (Kind) {
default:
llvm_unreachable("Unknown analysis client!");
#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREATE) \
case PD_##NAME: return CMDFLAG;
#include "clang/Frontend/Analyses.def"
}
}
//===----------------------------------------------------------------------===//
// Serialization (to args)
//===----------------------------------------------------------------------===//
static void AnalyzerOptsToArgs(const AnalyzerOptions &Opts,
std::vector<std::string> &Res) {
for (unsigned i = 0, e = Opts.AnalysisList.size(); i != e; ++i)
Res.push_back(getAnalysisName(Opts.AnalysisList[i]));
if (Opts.AnalysisStoreOpt != BasicStoreModel) {
Res.push_back("-analyzer-store");
Res.push_back(getAnalysisStoreName(Opts.AnalysisStoreOpt));
}
if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) {
Res.push_back("-analyzer-constraints");
Res.push_back(getAnalysisConstraintName(Opts.AnalysisConstraintsOpt));
}
if (Opts.AnalysisDiagOpt != PD_HTML) {
Res.push_back("-analyzer-output");
Res.push_back(getAnalysisDiagClientName(Opts.AnalysisDiagOpt));
}
if (!Opts.AnalyzeSpecificFunction.empty()) {
Res.push_back("-analyze-function");
Res.push_back(Opts.AnalyzeSpecificFunction);
}
if (Opts.AnalyzeAll)
Res.push_back("-analyzer-opt-analyze-headers");
if (Opts.AnalyzerDisplayProgress)
Res.push_back("-analyzer-display-progress");
if (Opts.AnalyzeNestedBlocks)
Res.push_back("-analyzer-opt-analyze-nested-blocks");
if (Opts.EagerlyAssume)
Res.push_back("-analyzer-eagerly-assume");
if (!Opts.PurgeDead)
Res.push_back("-analyzer-no-purge-dead");
if (Opts.TrimGraph)
Res.push_back("-trim-egraph");
if (Opts.VisualizeEGDot)
Res.push_back("-analyzer-viz-egraph-graphviz");
if (Opts.VisualizeEGDot)
Res.push_back("-analyzer-viz-egraph-ubigraph");
if (Opts.EnableExperimentalChecks)
Res.push_back("-analyzer-experimental-checks");
if (Opts.EnableExperimentalInternalChecks)
Res.push_back("-analyzer-experimental-internal-checks");
}
static void CodeGenOptsToArgs(const CodeGenOptions &Opts,
std::vector<std::string> &Res) {
if (Opts.DebugInfo)
Res.push_back("-g");
if (Opts.DisableLLVMOpts)
Res.push_back("-disable-llvm-optzns");
if (Opts.DisableRedZone)
Res.push_back("-disable-red-zone");
if (!Opts.DwarfDebugFlags.empty()) {
Res.push_back("-dwarf-debug-flags");
Res.push_back(Opts.DwarfDebugFlags);
}
if (!Opts.MergeAllConstants)
Res.push_back("-fno-merge-all-constants");
if (Opts.NoCommon)
Res.push_back("-fno-common");
if (Opts.NoImplicitFloat)
Res.push_back("-no-implicit-float");
if (Opts.OptimizeSize) {
assert(Opts.OptimizationLevel == 2 && "Invalid options!");
Res.push_back("-Os");
} else if (Opts.OptimizationLevel != 0)
Res.push_back("-O" + llvm::utostr(Opts.OptimizationLevel));
if (!Opts.MainFileName.empty()) {
Res.push_back("-main-file-name");
Res.push_back(Opts.MainFileName);
}
// SimplifyLibCalls is only derived.
// TimePasses is only derived.
// UnitAtATime is unused.
// UnrollLoops is only derived.
// VerifyModule is only derived.
// Inlining is only derived.
if (Opts.DataSections)
Res.push_back("-fdata-sections");
if (Opts.FunctionSections)
Res.push_back("-ffunction-sections");
if (Opts.AsmVerbose)
Res.push_back("-masm-verbose");
if (!Opts.CodeModel.empty()) {
Res.push_back("-mcode-model");
Res.push_back(Opts.CodeModel);
}
if (!Opts.CXAAtExit)
Res.push_back("-fno-use-cxa-atexit");
if (Opts.CXXCtorDtorAliases)
Res.push_back("-mconstructor-aliases");
if (!Opts.DebugPass.empty()) {
Res.push_back("-mdebug-pass");
Res.push_back(Opts.DebugPass);
}
if (Opts.DisableFPElim)
Res.push_back("-mdisable-fp-elim");
if (!Opts.FloatABI.empty()) {
Res.push_back("-mfloat-abi");
Res.push_back(Opts.FloatABI);
}
if (!Opts.LimitFloatPrecision.empty()) {
Res.push_back("-mlimit-float-precision");
Res.push_back(Opts.LimitFloatPrecision);
}
if (Opts.NoZeroInitializedInBSS)
Res.push_back("-mno-zero-initialized-bss");
if (Opts.ObjCLegacyDispatch)
Res.push_back("-fobjc-legacy-dispatch");
if (Opts.SoftFloat)
Res.push_back("-msoft-float");
if (Opts.UnwindTables)
Res.push_back("-munwind-tables");
if (Opts.RelocationModel != "pic") {
Res.push_back("-mrelocation-model");
Res.push_back(Opts.RelocationModel);
}
if (!Opts.VerifyModule)
Res.push_back("-disable-llvm-verifier");
}
static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts,
std::vector<std::string> &Res) {
if (Opts.IncludeSystemHeaders)
Res.push_back("-sys-header-deps");
if (Opts.UsePhonyTargets)
Res.push_back("-MP");
if (!Opts.OutputFile.empty()) {
Res.push_back("-dependency-file");
Res.push_back(Opts.OutputFile);
}
for (unsigned i = 0, e = Opts.Targets.size(); i != e; ++i) {
Res.push_back("-MT");
Res.push_back(Opts.Targets[i]);
}
}
static void DiagnosticOptsToArgs(const DiagnosticOptions &Opts,
std::vector<std::string> &Res) {
if (Opts.IgnoreWarnings)
Res.push_back("-w");
if (Opts.NoRewriteMacros)
Res.push_back("-Wno-rewrite-macros");
if (Opts.Pedantic)
Res.push_back("-pedantic");
if (Opts.PedanticErrors)
Res.push_back("-pedantic-errors");
if (!Opts.ShowColumn)
Res.push_back("-fno-show-column");
if (!Opts.ShowLocation)
Res.push_back("-fno-show-source-location");
if (!Opts.ShowCarets)
Res.push_back("-fno-caret-diagnostics");
if (!Opts.ShowFixits)
Res.push_back("-fno-diagnostics-fixit-info");
if (Opts.ShowSourceRanges)
Res.push_back("-fdiagnostics-print-source-range-info");
if (Opts.ShowColors)
Res.push_back("-fcolor-diagnostics");
if (Opts.VerifyDiagnostics)
Res.push_back("-verify");
if (Opts.BinaryOutput)
Res.push_back("-fdiagnostics-binary");
if (Opts.ShowOptionNames)
Res.push_back("-fdiagnostics-show-option");
if (Opts.ErrorLimit) {
Res.push_back("-ferror-limit");
Res.push_back(llvm::utostr(Opts.ErrorLimit));
}
if (Opts.TemplateBacktraceLimit != 10) {
Res.push_back("-ftemplate-backtrace-limit");
Res.push_back(llvm::utostr(Opts.TemplateBacktraceLimit));
}
if (Opts.TabStop != DiagnosticOptions::DefaultTabStop) {
Res.push_back("-ftabstop");
Res.push_back(llvm::utostr(Opts.TabStop));
}
if (Opts.MessageLength) {
Res.push_back("-fmessage-length");
Res.push_back(llvm::utostr(Opts.MessageLength));
}
if (!Opts.DumpBuildInformation.empty()) {
Res.push_back("-dump-build-information");
Res.push_back(Opts.DumpBuildInformation);
}
for (unsigned i = 0, e = Opts.Warnings.size(); i != e; ++i)
Res.push_back("-W" + Opts.Warnings[i]);
}
static const char *getInputKindName(FrontendOptions::InputKind Kind) {
switch (Kind) {
case FrontendOptions::IK_None: break;
case FrontendOptions::IK_AST: return "ast";
case FrontendOptions::IK_Asm: return "assembler-with-cpp";
case FrontendOptions::IK_C: return "c";
case FrontendOptions::IK_CXX: return "c++";
case FrontendOptions::IK_ObjC: return "objective-c";
case FrontendOptions::IK_ObjCXX: return "objective-c++";
case FrontendOptions::IK_OpenCL: return "cl";
case FrontendOptions::IK_PreprocessedC: return "cpp-output";
case FrontendOptions::IK_PreprocessedCXX: return "c++-cpp-output";
case FrontendOptions::IK_PreprocessedObjC: return "objective-c-cpp-output";
case FrontendOptions::IK_PreprocessedObjCXX:return "objective-c++-cpp-output";
}
llvm_unreachable("Unexpected language kind!");
return 0;
}
static const char *getActionName(frontend::ActionKind Kind) {
switch (Kind) {
case frontend::PluginAction:
case frontend::InheritanceView:
llvm_unreachable("Invalid kind!");
case frontend::ASTDump: return "-ast-dump";
case frontend::ASTPrint: return "-ast-print";
case frontend::ASTPrintXML: return "-ast-print-xml";
case frontend::ASTView: return "-ast-view";
case frontend::DumpRawTokens: return "-dump-raw-tokens";
case frontend::DumpTokens: return "-dump-tokens";
case frontend::EmitAssembly: return "-S";
case frontend::EmitBC: return "-emit-llvm-bc";
case frontend::EmitHTML: return "-emit-html";
case frontend::EmitLLVM: return "-emit-llvm";
case frontend::EmitLLVMOnly: return "-emit-llvm-only";
case frontend::EmitObj: return "-emit-obj";
case frontend::FixIt: return "-fixit";
case frontend::GeneratePCH: return "-emit-pch";
case frontend::GeneratePTH: return "-emit-pth";
case frontend::InitOnly: return "-init-only";
case frontend::ParseNoop: return "-parse-noop";
case frontend::ParsePrintCallbacks: return "-parse-print-callbacks";
case frontend::ParseSyntaxOnly: return "-fsyntax-only";
case frontend::PrintDeclContext: return "-print-decl-contexts";
case frontend::PrintPreprocessedInput: return "-E";
case frontend::RewriteMacros: return "-rewrite-macros";
case frontend::RewriteObjC: return "-rewrite-objc";
case frontend::RewriteTest: return "-rewrite-test";
case frontend::RunAnalysis: return "-analyze";
case frontend::RunPreprocessorOnly: return "-Eonly";
}
llvm_unreachable("Unexpected language kind!");
return 0;
}
static void FrontendOptsToArgs(const FrontendOptions &Opts,
std::vector<std::string> &Res) {
if (!Opts.DebugCodeCompletionPrinter)
Res.push_back("-no-code-completion-debug-printer");
if (Opts.DisableFree)
Res.push_back("-disable-free");
if (Opts.RelocatablePCH)
Res.push_back("-relocatable-pch");
if (Opts.ShowHelp)
Res.push_back("-help");
if (Opts.ShowMacrosInCodeCompletion)
Res.push_back("-code-completion-macros");
if (Opts.ShowStats)
Res.push_back("-print-stats");
if (Opts.ShowTimers)
Res.push_back("-ftime-report");
if (Opts.ShowVersion)
Res.push_back("-version");
bool NeedLang = false;
for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i)
if (FrontendOptions::getInputKindForExtension(Opts.Inputs[i].second) !=
Opts.Inputs[i].first)
NeedLang = true;
if (NeedLang) {
Res.push_back("-x");
Res.push_back(getInputKindName(Opts.Inputs[0].first));
}
for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) {
assert((!NeedLang || Opts.Inputs[i].first == Opts.Inputs[0].first) &&
"Unable to represent this input vector!");
Res.push_back(Opts.Inputs[i].second);
}
if (!Opts.OutputFile.empty()) {
Res.push_back("-o");
Res.push_back(Opts.OutputFile);
}
if (!Opts.ViewClassInheritance.empty()) {
Res.push_back("-cxx-inheritance-view");
Res.push_back(Opts.ViewClassInheritance);
}
for (unsigned i = 0, e = Opts.FixItLocations.size(); i != e; ++i) {
Res.push_back("-fixit-at");
Res.push_back(Opts.FixItLocations[i].FileName + ":" +
llvm::utostr(Opts.FixItLocations[i].Line) + ":" +
llvm::utostr(Opts.FixItLocations[i].Column));
}
if (!Opts.CodeCompletionAt.FileName.empty()) {
Res.push_back("-code-completion-at");
Res.push_back(Opts.CodeCompletionAt.FileName + ":" +
llvm::utostr(Opts.CodeCompletionAt.Line) + ":" +
llvm::utostr(Opts.CodeCompletionAt.Column));
}
if (Opts.ProgramAction != frontend::InheritanceView &&
Opts.ProgramAction != frontend::PluginAction)
Res.push_back(getActionName(Opts.ProgramAction));
if (!Opts.ActionName.empty()) {
Res.push_back("-plugin");
Res.push_back(Opts.ActionName);
}
for (unsigned i = 0, e = Opts.Plugins.size(); i != e; ++i) {
Res.push_back("-load");
Res.push_back(Opts.Plugins[i]);
}
for (unsigned i = 0, e = Opts.ASTMergeFiles.size(); i != e; ++i) {
Res.push_back("-ast-merge");
Res.push_back(Opts.ASTMergeFiles[i]);
}
for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i) {
Res.push_back("-mllvm");
Res.push_back(Opts.LLVMArgs[i]);
}
}
static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts,
std::vector<std::string> &Res) {
if (Opts.Sysroot != "/") {
Res.push_back("-isysroot");
Res.push_back(Opts.Sysroot);
}
/// User specified include entries.
for (unsigned i = 0, e = Opts.UserEntries.size(); i != e; ++i) {
const HeaderSearchOptions::Entry &E = Opts.UserEntries[i];
if (E.IsFramework && (E.Group != frontend::Angled || !E.IsUserSupplied))
llvm::report_fatal_error("Invalid option set!");
if (E.IsUserSupplied) {
if (E.Group == frontend::After) {
Res.push_back("-idirafter");
} else if (E.Group == frontend::Quoted) {
Res.push_back("-iquote");
} else if (E.Group == frontend::System) {
Res.push_back("-isystem");
} else {
assert(E.Group == frontend::Angled && "Invalid group!");
Res.push_back(E.IsFramework ? "-F" : "-I");
}
} else {
if (E.Group != frontend::Angled && E.Group != frontend::System)
llvm::report_fatal_error("Invalid option set!");
Res.push_back(E.Group == frontend::Angled ? "-iwithprefixbefore" :
"-iwithprefix");
}
Res.push_back(E.Path);
}
if (!Opts.EnvIncPath.empty()) {
// FIXME: Provide an option for this, and move env detection to driver.
llvm::report_fatal_error("Not yet implemented!");
}
if (!Opts.CEnvIncPath.empty()) {
// FIXME: Provide an option for this, and move env detection to driver.
llvm::report_fatal_error("Not yet implemented!");
}
if (!Opts.ObjCEnvIncPath.empty()) {
// FIXME: Provide an option for this, and move env detection to driver.
llvm::report_fatal_error("Not yet implemented!");
}
if (!Opts.CXXEnvIncPath.empty()) {
// FIXME: Provide an option for this, and move env detection to driver.
llvm::report_fatal_error("Not yet implemented!");
}
if (!Opts.ObjCXXEnvIncPath.empty()) {
// FIXME: Provide an option for this, and move env detection to driver.
llvm::report_fatal_error("Not yet implemented!");
}
if (!Opts.ResourceDir.empty()) {
Res.push_back("-resource-dir");
Res.push_back(Opts.ResourceDir);
}
if (!Opts.UseStandardIncludes)
Res.push_back("-nostdinc");
if (!Opts.UseStandardCXXIncludes)
Res.push_back("-nostdinc++");
if (Opts.Verbose)
Res.push_back("-v");
}
static void LangOptsToArgs(const LangOptions &Opts,
std::vector<std::string> &Res) {
LangOptions DefaultLangOpts;
// FIXME: Need to set -std to get all the implicit options.
// FIXME: We want to only pass options relative to the defaults, which
// requires constructing a target. :(
//
// It would be better to push the all target specific choices into the driver,
// so that everything below that was more uniform.
if (Opts.Trigraphs)
Res.push_back("-trigraphs");
// Implicit based on the input kind:
// AsmPreprocessor, CPlusPlus, ObjC1, ObjC2, OpenCL
// Implicit based on the input language standard:
// BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode
if (Opts.DollarIdents)
Res.push_back("-fdollars-in-identifiers");
if (Opts.GNUMode && !Opts.GNUKeywords)
Res.push_back("-fno-gnu-keywords");
if (!Opts.GNUMode && Opts.GNUKeywords)
Res.push_back("-fgnu-keywords");
if (Opts.Microsoft)
Res.push_back("-fms-extensions");
if (Opts.ObjCNonFragileABI)
Res.push_back("-fobjc-nonfragile-abi");
if (Opts.ObjCNonFragileABI2)
Res.push_back("-fobjc-nonfragile-abi2");
// NoInline is implicit.
if (!Opts.CXXOperatorNames)
Res.push_back("-fno-operator-names");
if (Opts.PascalStrings)
Res.push_back("-fpascal-strings");
if (Opts.CatchUndefined)
Res.push_back("-fcatch-undefined-behavior");
if (Opts.WritableStrings)
Res.push_back("-fwritable-strings");
if (Opts.ConstStrings)
Res.push_back("-Wwrite-strings");
if (!Opts.LaxVectorConversions)
Res.push_back("-fno-lax-vector-conversions");
if (Opts.AltiVec)
Res.push_back("-faltivec");
if (Opts.Exceptions)
Res.push_back("-fexceptions");
if (Opts.SjLjExceptions)
Res.push_back("-fsjlj-exceptions");
if (!Opts.RTTI)
Res.push_back("-fno-rtti");
if (!Opts.NeXTRuntime)
Res.push_back("-fgnu-runtime");
if (Opts.Freestanding)
Res.push_back("-ffreestanding");
if (Opts.NoBuiltin)
Res.push_back("-fno-builtin");
if (!Opts.AssumeSaneOperatorNew)
Res.push_back("-fno-assume-sane-operator-new");
if (!Opts.ThreadsafeStatics)
Res.push_back("-fno-threadsafe-statics");
if (Opts.POSIXThreads)
Res.push_back("-pthread");
if (Opts.Blocks)
Res.push_back("-fblocks");
if (Opts.EmitAllDecls)
Res.push_back("-femit-all-decls");
if (Opts.MathErrno)
Res.push_back("-fmath-errno");
if (Opts.OverflowChecking)
Res.push_back("-ftrapv");
if (Opts.HeinousExtensions)
Res.push_back("-fheinous-gnu-extensions");
// Optimize is implicit.
// OptimizeSize is implicit.
if (Opts.Static)
Res.push_back("-static-define");
if (Opts.DumpRecordLayouts)
Res.push_back("-fdump-record-layouts");
if (Opts.DumpVTableLayouts)
Res.push_back("-fdump-vtable-layouts");
if (Opts.NoBitFieldTypeAlign)
Res.push_back("-fno-bitfield-type-alignment");
if (Opts.SjLjExceptions)
Res.push_back("-fsjlj-exceptions");
if (Opts.PICLevel) {
Res.push_back("-pic-level");
Res.push_back(llvm::utostr(Opts.PICLevel));
}
if (Opts.ObjCGCBitmapPrint)
Res.push_back("-print-ivar-layout");
if (!Opts.AccessControl)
Res.push_back("-fno-access-control");
if (!Opts.CharIsSigned)
Res.push_back("-fno-signed-char");
if (Opts.ShortWChar)
Res.push_back("-fshort-wchar");
if (!Opts.ElideConstructors)
Res.push_back("-fno-elide-constructors");
if (Opts.getGCMode() != LangOptions::NonGC) {
if (Opts.getGCMode() == LangOptions::HybridGC) {
Res.push_back("-fobjc-gc");
} else {
assert(Opts.getGCMode() == LangOptions::GCOnly && "Invalid GC mode!");
Res.push_back("-fobjc-gc-only");
}
}
if (Opts.getVisibilityMode() != LangOptions::Default) {
Res.push_back("-fvisibility");
if (Opts.getVisibilityMode() == LangOptions::Hidden) {
Res.push_back("hidden");
} else {
assert(Opts.getVisibilityMode() == LangOptions::Protected &&
"Invalid visibility!");
Res.push_back("protected");
}
}
if (Opts.getStackProtectorMode() != 0) {
Res.push_back("-stack-protector");
Res.push_back(llvm::utostr(Opts.getStackProtectorMode()));
}
if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth) {
Res.push_back("-ftemplate-depth");
Res.push_back(llvm::utostr(Opts.InstantiationDepth));
}
if (!Opts.ObjCConstantStringClass.empty()) {
Res.push_back("-fconstant-string-class");
Res.push_back(Opts.ObjCConstantStringClass);
}
}
static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts,
std::vector<std::string> &Res) {
for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i)
Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") +
Opts.Macros[i].first);
for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) {
// FIXME: We need to avoid reincluding the implicit PCH and PTH includes.
Res.push_back("-include");
Res.push_back(Opts.Includes[i]);
}
for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i) {
Res.push_back("-imacros");
Res.push_back(Opts.MacroIncludes[i]);
}
if (!Opts.UsePredefines)
Res.push_back("-undef");
if (Opts.DetailedRecord)
Res.push_back("-detailed-preprocessing-record");
if (!Opts.ImplicitPCHInclude.empty()) {
Res.push_back("-include-pch");
Res.push_back(Opts.ImplicitPCHInclude);
}
if (!Opts.ImplicitPTHInclude.empty()) {
Res.push_back("-include-pth");
Res.push_back(Opts.ImplicitPTHInclude);
}
if (!Opts.TokenCache.empty()) {
if (Opts.ImplicitPTHInclude.empty()) {
Res.push_back("-token-cache");
Res.push_back(Opts.TokenCache);
} else
assert(Opts.ImplicitPTHInclude == Opts.TokenCache &&
"Unsupported option combination!");
}
for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) {
Res.push_back("-remap-file");
Res.push_back(Opts.RemappedFiles[i].first + ";" +
Opts.RemappedFiles[i].second);
}
}
static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts,
std::vector<std::string> &Res) {
if (!Opts.ShowCPP && !Opts.ShowMacros)
llvm::report_fatal_error("Invalid option combination!");
if (Opts.ShowCPP && Opts.ShowMacros)
Res.push_back("-dD");
else if (!Opts.ShowCPP && Opts.ShowMacros)
Res.push_back("-dM");
if (!Opts.ShowLineMarkers)
Res.push_back("-P");
if (Opts.ShowComments)
Res.push_back("-C");
if (Opts.ShowMacroComments)
Res.push_back("-CC");
}
static void TargetOptsToArgs(const TargetOptions &Opts,
std::vector<std::string> &Res) {
Res.push_back("-triple");
Res.push_back(Opts.Triple);
if (!Opts.CPU.empty()) {
Res.push_back("-target-cpu");
Res.push_back(Opts.CPU);
}
if (!Opts.ABI.empty()) {
Res.push_back("-target-abi");
Res.push_back(Opts.ABI);
}
for (unsigned i = 0, e = Opts.Features.size(); i != e; ++i) {
Res.push_back("-target-feature");
Res.push_back(Opts.Features[i]);
}
}
void CompilerInvocation::toArgs(std::vector<std::string> &Res) {
AnalyzerOptsToArgs(getAnalyzerOpts(), Res);
CodeGenOptsToArgs(getCodeGenOpts(), Res);
DependencyOutputOptsToArgs(getDependencyOutputOpts(), Res);
DiagnosticOptsToArgs(getDiagnosticOpts(), Res);
FrontendOptsToArgs(getFrontendOpts(), Res);
HeaderSearchOptsToArgs(getHeaderSearchOpts(), Res);
LangOptsToArgs(getLangOpts(), Res);
PreprocessorOptsToArgs(getPreprocessorOpts(), Res);
PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), Res);
TargetOptsToArgs(getTargetOpts(), Res);
}
//===----------------------------------------------------------------------===//
// Deserialization (to args)
//===----------------------------------------------------------------------===//
using namespace clang::driver;
using namespace clang::driver::cc1options;
static llvm::StringRef getLastArgValue(ArgList &Args, cc1options::ID ID,
llvm::StringRef Default = "") {
if (Arg *A = Args.getLastArg(ID))
return A->getValue(Args);
return Default;
}
static int getLastArgIntValue(ArgList &Args, cc1options::ID ID,
int Default, Diagnostic &Diags) {
Arg *A = Args.getLastArg(ID);
if (!A)
return Default;
int Res = Default;
if (llvm::StringRef(A->getValue(Args)).getAsInteger(10, Res))
Diags.Report(diag::err_drv_invalid_int_value)
<< A->getAsString(Args) << A->getValue(Args);
return Res;
}
static std::vector<std::string>
getAllArgValues(ArgList &Args, cc1options::ID ID) {
llvm::SmallVector<const char *, 16> Values;
Args.AddAllArgValues(Values, ID);
return std::vector<std::string>(Values.begin(), Values.end());
}
//
static void ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
Diagnostic &Diags) {
using namespace cc1options;
Opts.AnalysisList.clear();
#define ANALYSIS(NAME, CMDFLAG, DESC, SCOPE) \
if (Args.hasArg(OPT_analysis_##NAME)) Opts.AnalysisList.push_back(NAME);
#include "clang/Frontend/Analyses.def"
if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
llvm::StringRef Name = A->getValue(Args);
AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
.Case(CMDFLAG, NAME##Model)
#include "clang/Frontend/Analyses.def"
.Default(NumStores);
// FIXME: Error handling.
if (Value == NumStores)
Diags.Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_O)->getAsString(Args) << Name;
else
Opts.AnalysisStoreOpt = Value;
}
if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
llvm::StringRef Name = A->getValue(Args);
AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
.Case(CMDFLAG, NAME##Model)
#include "clang/Frontend/Analyses.def"
.Default(NumConstraints);
// FIXME: Error handling.
if (Value == NumConstraints)
Diags.Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_O)->getAsString(Args) << Name;
else
Opts.AnalysisConstraintsOpt = Value;
}
if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
llvm::StringRef Name = A->getValue(Args);
AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \
.Case(CMDFLAG, PD_##NAME)
#include "clang/Frontend/Analyses.def"
.Default(NUM_ANALYSIS_DIAG_CLIENTS);
// FIXME: Error handling.
if (Value == NUM_ANALYSIS_DIAG_CLIENTS)
Diags.Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_O)->getAsString(Args) << Name;
else
Opts.AnalysisDiagOpt = Value;
}
Opts.VisualizeEGDot = Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
Opts.VisualizeEGUbi = Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
Opts.AnalyzeNestedBlocks =
Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
Opts.PurgeDead = !Args.hasArg(OPT_analyzer_no_purge_dead);
Opts.EagerlyAssume = Args.hasArg(OPT_analyzer_eagerly_assume);
Opts.AnalyzeSpecificFunction = getLastArgValue(Args, OPT_analyze_function);
Opts.EnableExperimentalChecks = Args.hasArg(OPT_analyzer_experimental_checks);
Opts.EnableExperimentalInternalChecks =
Args.hasArg(OPT_analyzer_experimental_internal_checks);
Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
Opts.MaxNodes = getLastArgIntValue(Args, OPT_analyzer_max_nodes,150000,Diags);
}
static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
Diagnostic &Diags) {
using namespace cc1options;
// -Os implies -O2
if (Args.hasArg(OPT_Os))
Opts.OptimizationLevel = 2;
else {
Opts.OptimizationLevel = getLastArgIntValue(Args, OPT_O, 0, Diags);
if (Opts.OptimizationLevel > 3) {
Diags.Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_O)->getAsString(Args) << Opts.OptimizationLevel;
Opts.OptimizationLevel = 3;
}
}
// We must always run at least the always inlining pass.
Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
: CodeGenOptions::OnlyAlwaysInlining;
Opts.DebugInfo = Args.hasArg(OPT_g);
Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
Opts.DwarfDebugFlags = getLastArgValue(Args, OPT_dwarf_debug_flags);
Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
Opts.NoCommon = Args.hasArg(OPT_fno_common);
Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
Opts.OptimizeSize = Args.hasArg(OPT_Os);
Opts.UnrollLoops = (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize);
Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
Opts.CodeModel = getLastArgValue(Args, OPT_mcode_model);
Opts.DebugPass = getLastArgValue(Args, OPT_mdebug_pass);
Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim);
Opts.FloatABI = getLastArgValue(Args, OPT_mfloat_abi);
Opts.LimitFloatPrecision = getLastArgValue(Args, OPT_mlimit_float_precision);
Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
Opts.ObjCLegacyDispatch = Args.hasArg(OPT_fobjc_legacy_dispatch);
Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
Opts.RelocationModel = getLastArgValue(Args, OPT_mrelocation_model, "pic");
Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections);
Opts.DataSections = Args.hasArg(OPT_fdata_sections);
Opts.MainFileName = getLastArgValue(Args, OPT_main_file_name);
Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
}
static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
ArgList &Args) {
using namespace cc1options;
Opts.OutputFile = getLastArgValue(Args, OPT_dependency_file);
Opts.Targets = getAllArgValues(Args, OPT_MT);
Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
}
static void ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
Diagnostic &Diags) {
using namespace cc1options;
Opts.IgnoreWarnings = Args.hasArg(OPT_w);
Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
Opts.Pedantic = Args.hasArg(OPT_pedantic);
Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column);
Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
Opts.BinaryOutput = Args.hasArg(OPT_fdiagnostics_binary);
Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
Opts.TemplateBacktraceLimit
= getLastArgIntValue(Args, OPT_ftemplate_backtrace_limit, 0, Diags);
Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
DiagnosticOptions::DefaultTabStop, Diags);
if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
Diags.Report(diag::warn_ignoring_ftabstop_value)
<< Opts.TabStop << DiagnosticOptions::DefaultTabStop;
Opts.TabStop = DiagnosticOptions::DefaultTabStop;
}
Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
Opts.DumpBuildInformation = getLastArgValue(Args, OPT_dump_build_information);
Opts.Warnings = getAllArgValues(Args, OPT_W);
}
static FrontendOptions::InputKind
ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, Diagnostic &Diags) {
using namespace cc1options;
Opts.ProgramAction = frontend::ParseSyntaxOnly;
if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
switch (A->getOption().getID()) {
default:
assert(0 && "Invalid option in group!");
case OPT_ast_dump:
Opts.ProgramAction = frontend::ASTDump; break;
case OPT_ast_print:
Opts.ProgramAction = frontend::ASTPrint; break;
case OPT_ast_print_xml:
Opts.ProgramAction = frontend::ASTPrintXML; break;
case OPT_ast_view:
Opts.ProgramAction = frontend::ASTView; break;
case OPT_dump_raw_tokens:
Opts.ProgramAction = frontend::DumpRawTokens; break;
case OPT_dump_tokens:
Opts.ProgramAction = frontend::DumpTokens; break;
case OPT_S:
Opts.ProgramAction = frontend::EmitAssembly; break;
case OPT_emit_llvm_bc:
Opts.ProgramAction = frontend::EmitBC; break;
case OPT_emit_html:
Opts.ProgramAction = frontend::EmitHTML; break;
case OPT_emit_llvm:
Opts.ProgramAction = frontend::EmitLLVM; break;
case OPT_emit_llvm_only:
Opts.ProgramAction = frontend::EmitLLVMOnly; break;
case OPT_emit_obj:
Opts.ProgramAction = frontend::EmitObj; break;
case OPT_fixit:
Opts.ProgramAction = frontend::FixIt; break;
case OPT_emit_pch:
Opts.ProgramAction = frontend::GeneratePCH; break;
case OPT_emit_pth:
Opts.ProgramAction = frontend::GeneratePTH; break;
case OPT_init_only:
Opts.ProgramAction = frontend::InitOnly; break;
case OPT_parse_noop:
Opts.ProgramAction = frontend::ParseNoop; break;
case OPT_parse_print_callbacks:
Opts.ProgramAction = frontend::ParsePrintCallbacks; break;
case OPT_fsyntax_only:
Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
case OPT_print_decl_contexts:
Opts.ProgramAction = frontend::PrintDeclContext; break;
case OPT_E:
Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
case OPT_rewrite_macros:
Opts.ProgramAction = frontend::RewriteMacros; break;
case OPT_rewrite_objc:
Opts.ProgramAction = frontend::RewriteObjC; break;
case OPT_rewrite_test:
Opts.ProgramAction = frontend::RewriteTest; break;
case OPT_analyze:
Opts.ProgramAction = frontend::RunAnalysis; break;
case OPT_Eonly:
Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
}
}
if (const Arg *A = Args.getLastArg(OPT_plugin)) {
Opts.ProgramAction = frontend::PluginAction;
Opts.ActionName = A->getValue(Args);
}
if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
Opts.CodeCompletionAt =
ParsedSourceLocation::FromString(A->getValue(Args));
if (Opts.CodeCompletionAt.FileName.empty())
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << A->getValue(Args);
}
Opts.DebugCodeCompletionPrinter =
!Args.hasArg(OPT_no_code_completion_debug_printer);
Opts.DisableFree = Args.hasArg(OPT_disable_free);
Opts.FixItLocations.clear();
for (arg_iterator it = Args.filtered_begin(OPT_fixit_at),
ie = Args.filtered_end(); it != ie; ++it) {
const char *Loc = it->getValue(Args);
ParsedSourceLocation PSL = ParsedSourceLocation::FromString(Loc);
if (PSL.FileName.empty()) {
Diags.Report(diag::err_drv_invalid_value) << it->getAsString(Args) << Loc;
continue;
}
Opts.FixItLocations.push_back(PSL);
}
Opts.OutputFile = getLastArgValue(Args, OPT_o);
Opts.Plugins = getAllArgValues(Args, OPT_load);
Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
Opts.ShowHelp = Args.hasArg(OPT_help);
Opts.ShowMacrosInCodeCompletion = Args.hasArg(OPT_code_completion_macros);
Opts.ShowStats = Args.hasArg(OPT_print_stats);
Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
Opts.ShowVersion = Args.hasArg(OPT_version);
Opts.ViewClassInheritance = getLastArgValue(Args, OPT_cxx_inheritance_view);
Opts.ASTMergeFiles = getAllArgValues(Args, OPT_ast_merge);
Opts.LLVMArgs = getAllArgValues(Args, OPT_mllvm);
FrontendOptions::InputKind DashX = FrontendOptions::IK_None;
if (const Arg *A = Args.getLastArg(OPT_x)) {
DashX = llvm::StringSwitch<FrontendOptions::InputKind>(A->getValue(Args))
.Case("c", FrontendOptions::IK_C)
.Case("cl", FrontendOptions::IK_OpenCL)
.Case("c", FrontendOptions::IK_C)
.Case("cl", FrontendOptions::IK_OpenCL)
.Case("c++", FrontendOptions::IK_CXX)
.Case("objective-c", FrontendOptions::IK_ObjC)
.Case("objective-c++", FrontendOptions::IK_ObjCXX)
.Case("cpp-output", FrontendOptions::IK_PreprocessedC)
.Case("assembler-with-cpp", FrontendOptions::IK_Asm)
.Case("c++-cpp-output", FrontendOptions::IK_PreprocessedCXX)
.Case("objective-c-cpp-output", FrontendOptions::IK_PreprocessedObjC)
.Case("objective-c++-cpp-output", FrontendOptions::IK_PreprocessedObjCXX)
.Case("c-header", FrontendOptions::IK_C)
.Case("objective-c-header", FrontendOptions::IK_ObjC)
.Case("c++-header", FrontendOptions::IK_CXX)
.Case("objective-c++-header", FrontendOptions::IK_ObjCXX)
.Case("ast", FrontendOptions::IK_AST)
.Default(FrontendOptions::IK_None);
if (DashX == FrontendOptions::IK_None)
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << A->getValue(Args);
}
// '-' is the default input if none is given.
std::vector<std::string> Inputs = getAllArgValues(Args, OPT_INPUT);
Opts.Inputs.clear();
if (Inputs.empty())
Inputs.push_back("-");
for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
FrontendOptions::InputKind IK = DashX;
if (IK == FrontendOptions::IK_None) {
IK = FrontendOptions::getInputKindForExtension(
llvm::StringRef(Inputs[i]).rsplit('.').second);
// FIXME: Remove this hack.
if (i == 0)
DashX = IK;
}
Opts.Inputs.push_back(std::make_pair(IK, Inputs[i]));
}
return DashX;
}
std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
void *MainAddr) {
llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr);
if (!P.isEmpty()) {
P.eraseComponent(); // Remove /clang from foo/bin/clang
P.eraseComponent(); // Remove /bin from foo/bin
// Get foo/lib/clang/<version>/include
P.appendComponent("lib");
P.appendComponent("clang");
P.appendComponent(CLANG_VERSION_STRING);
}
return P.str();
}
static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
using namespace cc1options;
Opts.Sysroot = getLastArgValue(Args, OPT_isysroot, "/");
Opts.Verbose = Args.hasArg(OPT_v);
Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
Opts.UseStandardIncludes = !Args.hasArg(OPT_nostdinc);
Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
Opts.ResourceDir = getLastArgValue(Args, OPT_resource_dir);
// Add -I... and -F... options in order.
for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F),
ie = Args.filtered_end(); it != ie; ++it)
Opts.AddPath(it->getValue(Args), frontend::Angled, true,
/*IsFramework=*/ it->getOption().matches(OPT_F));
// Add -iprefix/-iwith-prefix/-iwithprefixbefore options.
llvm::StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix,
OPT_iwithprefixbefore),
ie = Args.filtered_end(); it != ie; ++it) {
if (it->getOption().matches(OPT_iprefix))
Prefix = it->getValue(Args);
else if (it->getOption().matches(OPT_iwithprefix))
Opts.AddPath(Prefix.str() + it->getValue(Args),
frontend::System, false, false);
else
Opts.AddPath(Prefix.str() + it->getValue(Args),
frontend::Angled, false, false);
}
for (arg_iterator it = Args.filtered_begin(OPT_idirafter),
ie = Args.filtered_end(); it != ie; ++it)
Opts.AddPath(it->getValue(Args), frontend::After, true, false);
for (arg_iterator it = Args.filtered_begin(OPT_iquote),
ie = Args.filtered_end(); it != ie; ++it)
Opts.AddPath(it->getValue(Args), frontend::Quoted, true, false);
for (arg_iterator it = Args.filtered_begin(OPT_isystem),
ie = Args.filtered_end(); it != ie; ++it)
Opts.AddPath(it->getValue(Args), frontend::System, true, false);
// FIXME: Need options for the various environment variables!
}
static void ParseLangArgs(LangOptions &Opts, ArgList &Args,
FrontendOptions::InputKind IK,
Diagnostic &Diags) {
// FIXME: Cleanup per-file based stuff.
// Set some properties which depend soley on the input kind; it would be nice
// to move these to the language standard, and have the driver resolve the
// input kind + language standard.
if (IK == FrontendOptions::IK_Asm) {
Opts.AsmPreprocessor = 1;
} else if (IK == FrontendOptions::IK_ObjC ||
IK == FrontendOptions::IK_ObjCXX ||
IK == FrontendOptions::IK_PreprocessedObjC ||
IK == FrontendOptions::IK_PreprocessedObjCXX) {
Opts.ObjC1 = Opts.ObjC2 = 1;
}
LangStandard::Kind LangStd = LangStandard::lang_unspecified;
if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args))
#define LANGSTANDARD(id, name, desc, features) \
.Case(name, LangStandard::lang_##id)
#include "clang/Frontend/LangStandards.def"
.Default(LangStandard::lang_unspecified);
if (LangStd == LangStandard::lang_unspecified)
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << A->getValue(Args);
}
if (LangStd == LangStandard::lang_unspecified) {
// Based on the base language, pick one.
switch (IK) {
case FrontendOptions::IK_None:
case FrontendOptions::IK_AST:
assert(0 && "Invalid input kind!");
case FrontendOptions::IK_OpenCL:
LangStd = LangStandard::lang_opencl;
break;
case FrontendOptions::IK_Asm:
case FrontendOptions::IK_C:
case FrontendOptions::IK_PreprocessedC:
case FrontendOptions::IK_ObjC:
case FrontendOptions::IK_PreprocessedObjC:
LangStd = LangStandard::lang_gnu99;
break;
case FrontendOptions::IK_CXX:
case FrontendOptions::IK_PreprocessedCXX:
case FrontendOptions::IK_ObjCXX:
case FrontendOptions::IK_PreprocessedObjCXX:
LangStd = LangStandard::lang_gnucxx98;
break;
}
}
const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
Opts.BCPLComment = Std.hasBCPLComments();
Opts.C99 = Std.isC99();
Opts.CPlusPlus = Std.isCPlusPlus();
Opts.CPlusPlus0x = Std.isCPlusPlus0x();
Opts.Digraphs = Std.hasDigraphs();
Opts.GNUMode = Std.isGNUMode();
Opts.GNUInline = !Std.isC99();
Opts.HexFloats = Std.hasHexFloats();
Opts.ImplicitInt = Std.hasImplicitInt();
// OpenCL has some additional defaults.
if (LangStd == LangStandard::lang_opencl) {
Opts.OpenCL = 1;
Opts.AltiVec = 1;
Opts.CXXOperatorNames = 1;
Opts.LaxVectorConversions = 1;
}
// OpenCL and C++ both have bool, true, false keywords.
Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
// We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
// keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
// while a subset (the non-C++ GNU keywords) is provided by GCC's
// '-fgnu-keywords'. Clang conflates the two for simplicity under the single
// name, as it doesn't seem a useful distinction.
Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
Opts.GNUMode);
if (Opts.CPlusPlus)
Opts.CXXOperatorNames = !Args.hasArg(OPT_fno_operator_names);
if (Args.hasArg(OPT_fobjc_gc_only))
Opts.setGCMode(LangOptions::GCOnly);
else if (Args.hasArg(OPT_fobjc_gc))
Opts.setGCMode(LangOptions::HybridGC);
if (Args.hasArg(OPT_print_ivar_layout))
Opts.ObjCGCBitmapPrint = 1;
if (Args.hasArg(OPT_faltivec))
Opts.AltiVec = 1;
if (Args.hasArg(OPT_pthread))
Opts.POSIXThreads = 1;
llvm::StringRef Vis = getLastArgValue(Args, OPT_fvisibility,
"default");
if (Vis == "default")
Opts.setVisibilityMode(LangOptions::Default);
else if (Vis == "hidden")
Opts.setVisibilityMode(LangOptions::Hidden);
else if (Vis == "protected")
Opts.setVisibilityMode(LangOptions::Protected);
else
Diags.Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis;
Opts.OverflowChecking = Args.hasArg(OPT_ftrapv);
// Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
// is specified, or -std is set to a conforming mode.
Opts.Trigraphs = !Opts.GNUMode;
if (Args.hasArg(OPT_trigraphs))
Opts.Trigraphs = 1;
Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
OPT_fno_dollars_in_identifiers,
!Opts.AsmPreprocessor);
Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
Opts.Microsoft = Args.hasArg(OPT_fms_extensions);
Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
Opts.ConstStrings = Args.hasArg(OPT_Wwrite_strings);
if (Args.hasArg(OPT_fno_lax_vector_conversions))
Opts.LaxVectorConversions = 0;
if (Args.hasArg(OPT_fno_threadsafe_statics))
Opts.ThreadsafeStatics = 0;
Opts.Exceptions = Args.hasArg(OPT_fexceptions);
Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
Opts.Blocks = Args.hasArg(OPT_fblocks);
Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char);
Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar);
Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
Opts.MathErrno = Args.hasArg(OPT_fmath_errno);
Opts.InstantiationDepth = getLastArgIntValue(Args, OPT_ftemplate_depth, 99,
Diags);
Opts.NeXTRuntime = !Args.hasArg(OPT_fgnu_runtime);
Opts.ObjCConstantStringClass = getLastArgValue(Args,
OPT_fconstant_string_class);
Opts.ObjCNonFragileABI = Args.hasArg(OPT_fobjc_nonfragile_abi);
Opts.ObjCNonFragileABI2 = Args.hasArg(OPT_fobjc_nonfragile_abi2);
if (Opts.ObjCNonFragileABI2)
Opts.ObjCNonFragileABI = true;
Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior);
Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
Opts.Static = Args.hasArg(OPT_static_define);
Opts.DumpRecordLayouts = Args.hasArg(OPT_fdump_record_layouts);
Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
Opts.OptimizeSize = 0;
// FIXME: Eliminate this dependency.
unsigned Opt =
Args.hasArg(OPT_Os) ? 2 : getLastArgIntValue(Args, OPT_O, 0, Diags);
Opts.Optimize = Opt != 0;
// This is the __NO_INLINE__ define, which just depends on things like the
// optimization level and -fno-inline, not actually whether the backend has
// inlining enabled.
//
// FIXME: This is affected by other options (-fno-inline).
Opts.NoInline = !Opt;
unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
switch (SSP) {
default:
Diags.Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
break;
case 0: Opts.setStackProtectorMode(LangOptions::SSPOff); break;
case 1: Opts.setStackProtectorMode(LangOptions::SSPOn); break;
case 2: Opts.setStackProtectorMode(LangOptions::SSPReq); break;
}
}
static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
Diagnostic &Diags) {
using namespace cc1options;
Opts.ImplicitPCHInclude = getLastArgValue(Args, OPT_include_pch);
Opts.ImplicitPTHInclude = getLastArgValue(Args, OPT_include_pth);
if (const Arg *A = Args.getLastArg(OPT_token_cache))
Opts.TokenCache = A->getValue(Args);
else
Opts.TokenCache = Opts.ImplicitPTHInclude;
Opts.UsePredefines = !Args.hasArg(OPT_undef);
Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
// Add macros from the command line.
for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U),
ie = Args.filtered_end(); it != ie; ++it) {
if (it->getOption().matches(OPT_D))
Opts.addMacroDef(it->getValue(Args));
else
Opts.addMacroUndef(it->getValue(Args));
}
Opts.MacroIncludes = getAllArgValues(Args, OPT_imacros);
// Add the ordered list of -includes.
for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch,
OPT_include_pth),
ie = Args.filtered_end(); it != ie; ++it) {
// PCH is handled specially, we need to extra the original include path.
if (it->getOption().matches(OPT_include_pch)) {
std::string OriginalFile =
PCHReader::getOriginalSourceFile(it->getValue(Args), Diags);
if (OriginalFile.empty())
continue;
Opts.Includes.push_back(OriginalFile);
} else
Opts.Includes.push_back(it->getValue(Args));
}
// Include 'altivec.h' if -faltivec option present
if (Args.hasArg(OPT_faltivec))
Opts.Includes.push_back("altivec.h");
for (arg_iterator it = Args.filtered_begin(OPT_remap_file),
ie = Args.filtered_end(); it != ie; ++it) {
std::pair<llvm::StringRef,llvm::StringRef> Split =
llvm::StringRef(it->getValue(Args)).split(';');
if (Split.second.empty()) {
Diags.Report(diag::err_drv_invalid_remap_file) << it->getAsString(Args);
continue;
}
Opts.addRemappedFile(Split.first, Split.second);
}
}
static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
ArgList &Args) {
using namespace cc1options;
Opts.ShowCPP = !Args.hasArg(OPT_dM);
Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
Opts.ShowComments = Args.hasArg(OPT_C);
Opts.ShowMacroComments = Args.hasArg(OPT_CC);
}
static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
using namespace cc1options;
Opts.ABI = getLastArgValue(Args, OPT_target_abi);
Opts.CPU = getLastArgValue(Args, OPT_target_cpu);
Opts.Triple = getLastArgValue(Args, OPT_triple);
Opts.Features = getAllArgValues(Args, OPT_target_feature);
// Use the host triple if unspecified.
if (Opts.Triple.empty())
Opts.Triple = llvm::sys::getHostTriple();
}
//
void CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
const char **ArgBegin,
const char **ArgEnd,
Diagnostic &Diags) {
// Parse the arguments.
llvm::OwningPtr<OptTable> Opts(createCC1OptTable());
unsigned MissingArgIndex, MissingArgCount;
llvm::OwningPtr<InputArgList> Args(
Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount));
// Check for missing argument error.
if (MissingArgCount)
Diags.Report(diag::err_drv_missing_argument)
<< Args->getArgString(MissingArgIndex) << MissingArgCount;
// Issue errors on unknown arguments.
for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN),
ie = Args->filtered_end(); it != ie; ++it)
Diags.Report(diag::err_drv_unknown_argument) << it->getAsString(*Args);
ParseAnalyzerArgs(Res.getAnalyzerOpts(), *Args, Diags);
ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, Diags);
ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args);
ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, Diags);
FrontendOptions::InputKind DashX =
ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags);
ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args);
if (DashX != FrontendOptions::IK_AST)
ParseLangArgs(Res.getLangOpts(), *Args, DashX, Diags);
ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, Diags);
ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args);
ParseTargetArgs(Res.getTargetOpts(), *Args);
}
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