forked from OSchip/llvm-project
537 lines
18 KiB
C++
537 lines
18 KiB
C++
//===--- CompilerInstance.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/CompilerInstance.h"
|
|
#include "clang/AST/ASTConsumer.h"
|
|
#include "clang/AST/ASTContext.h"
|
|
#include "clang/Basic/Diagnostic.h"
|
|
#include "clang/Basic/FileManager.h"
|
|
#include "clang/Basic/SourceManager.h"
|
|
#include "clang/Basic/TargetInfo.h"
|
|
#include "clang/Basic/Version.h"
|
|
#include "clang/Lex/HeaderSearch.h"
|
|
#include "clang/Lex/Preprocessor.h"
|
|
#include "clang/Lex/PTHManager.h"
|
|
#include "clang/Frontend/ChainedDiagnosticClient.h"
|
|
#include "clang/Frontend/FrontendAction.h"
|
|
#include "clang/Frontend/PCHReader.h"
|
|
#include "clang/Frontend/FrontendDiagnostic.h"
|
|
#include "clang/Frontend/TextDiagnosticPrinter.h"
|
|
#include "clang/Frontend/VerifyDiagnosticsClient.h"
|
|
#include "clang/Frontend/Utils.h"
|
|
#include "clang/Sema/CodeCompleteConsumer.h"
|
|
#include "llvm/LLVMContext.h"
|
|
#include "llvm/Support/MemoryBuffer.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include "llvm/Support/Timer.h"
|
|
#include "llvm/System/Host.h"
|
|
#include "llvm/System/Path.h"
|
|
#include "llvm/System/Program.h"
|
|
using namespace clang;
|
|
|
|
CompilerInstance::CompilerInstance()
|
|
: Invocation(new CompilerInvocation()) {
|
|
}
|
|
|
|
CompilerInstance::~CompilerInstance() {
|
|
}
|
|
|
|
void CompilerInstance::setLLVMContext(llvm::LLVMContext *Value) {
|
|
LLVMContext.reset(Value);
|
|
}
|
|
|
|
void CompilerInstance::setInvocation(CompilerInvocation *Value) {
|
|
Invocation.reset(Value);
|
|
}
|
|
|
|
void CompilerInstance::setDiagnostics(Diagnostic *Value) {
|
|
Diagnostics.reset(Value);
|
|
}
|
|
|
|
void CompilerInstance::setDiagnosticClient(DiagnosticClient *Value) {
|
|
DiagClient.reset(Value);
|
|
}
|
|
|
|
void CompilerInstance::setTarget(TargetInfo *Value) {
|
|
Target.reset(Value);
|
|
}
|
|
|
|
void CompilerInstance::setFileManager(FileManager *Value) {
|
|
FileMgr.reset(Value);
|
|
}
|
|
|
|
void CompilerInstance::setSourceManager(SourceManager *Value) {
|
|
SourceMgr.reset(Value);
|
|
}
|
|
|
|
void CompilerInstance::setPreprocessor(Preprocessor *Value) {
|
|
PP.reset(Value);
|
|
}
|
|
|
|
void CompilerInstance::setASTContext(ASTContext *Value) {
|
|
Context.reset(Value);
|
|
}
|
|
|
|
void CompilerInstance::setASTConsumer(ASTConsumer *Value) {
|
|
Consumer.reset(Value);
|
|
}
|
|
|
|
void CompilerInstance::setCodeCompletionConsumer(CodeCompleteConsumer *Value) {
|
|
CompletionConsumer.reset(Value);
|
|
}
|
|
|
|
// Diagnostics
|
|
namespace {
|
|
class BinaryDiagnosticSerializer : public DiagnosticClient {
|
|
llvm::raw_ostream &OS;
|
|
SourceManager *SourceMgr;
|
|
public:
|
|
explicit BinaryDiagnosticSerializer(llvm::raw_ostream &OS)
|
|
: OS(OS), SourceMgr(0) { }
|
|
|
|
virtual void HandleDiagnostic(Diagnostic::Level DiagLevel,
|
|
const DiagnosticInfo &Info);
|
|
};
|
|
}
|
|
|
|
void BinaryDiagnosticSerializer::HandleDiagnostic(Diagnostic::Level DiagLevel,
|
|
const DiagnosticInfo &Info) {
|
|
StoredDiagnostic(DiagLevel, Info).Serialize(OS);
|
|
}
|
|
|
|
static void SetUpBuildDumpLog(const DiagnosticOptions &DiagOpts,
|
|
unsigned argc, char **argv,
|
|
llvm::OwningPtr<DiagnosticClient> &DiagClient) {
|
|
std::string ErrorInfo;
|
|
llvm::raw_ostream *OS =
|
|
new llvm::raw_fd_ostream(DiagOpts.DumpBuildInformation.c_str(), ErrorInfo);
|
|
if (!ErrorInfo.empty()) {
|
|
// FIXME: Do not fail like this.
|
|
llvm::errs() << "error opening -dump-build-information file '"
|
|
<< DiagOpts.DumpBuildInformation << "', option ignored!\n";
|
|
delete OS;
|
|
return;
|
|
}
|
|
|
|
(*OS) << "clang -cc1 command line arguments: ";
|
|
for (unsigned i = 0; i != argc; ++i)
|
|
(*OS) << argv[i] << ' ';
|
|
(*OS) << '\n';
|
|
|
|
// Chain in a diagnostic client which will log the diagnostics.
|
|
DiagnosticClient *Logger =
|
|
new TextDiagnosticPrinter(*OS, DiagOpts, /*OwnsOutputStream=*/true);
|
|
DiagClient.reset(new ChainedDiagnosticClient(DiagClient.take(), Logger));
|
|
}
|
|
|
|
void CompilerInstance::createDiagnostics(int Argc, char **Argv) {
|
|
Diagnostics.reset(createDiagnostics(getDiagnosticOpts(), Argc, Argv));
|
|
|
|
if (Diagnostics)
|
|
DiagClient.reset(Diagnostics->getClient());
|
|
}
|
|
|
|
Diagnostic *CompilerInstance::createDiagnostics(const DiagnosticOptions &Opts,
|
|
int Argc, char **Argv) {
|
|
llvm::OwningPtr<Diagnostic> Diags(new Diagnostic());
|
|
|
|
// Create the diagnostic client for reporting errors or for
|
|
// implementing -verify.
|
|
llvm::OwningPtr<DiagnosticClient> DiagClient;
|
|
if (Opts.BinaryOutput) {
|
|
if (llvm::sys::Program::ChangeStderrToBinary()) {
|
|
// We weren't able to set standard error to binary, which is a
|
|
// bit of a problem. So, just create a text diagnostic printer
|
|
// to complain about this problem, and pretend that the user
|
|
// didn't try to use binary output.
|
|
DiagClient.reset(new TextDiagnosticPrinter(llvm::errs(), Opts));
|
|
Diags->setClient(DiagClient.take());
|
|
Diags->Report(diag::err_fe_stderr_binary);
|
|
return Diags.take();
|
|
} else {
|
|
DiagClient.reset(new BinaryDiagnosticSerializer(llvm::errs()));
|
|
}
|
|
} else {
|
|
DiagClient.reset(new TextDiagnosticPrinter(llvm::errs(), Opts));
|
|
}
|
|
|
|
// Chain in -verify checker, if requested.
|
|
if (Opts.VerifyDiagnostics)
|
|
DiagClient.reset(new VerifyDiagnosticsClient(*Diags, DiagClient.take()));
|
|
|
|
if (!Opts.DumpBuildInformation.empty())
|
|
SetUpBuildDumpLog(Opts, Argc, Argv, DiagClient);
|
|
|
|
// Configure our handling of diagnostics.
|
|
Diags->setClient(DiagClient.take());
|
|
if (ProcessWarningOptions(*Diags, Opts))
|
|
return 0;
|
|
|
|
return Diags.take();
|
|
}
|
|
|
|
// File Manager
|
|
|
|
void CompilerInstance::createFileManager() {
|
|
FileMgr.reset(new FileManager());
|
|
}
|
|
|
|
// Source Manager
|
|
|
|
void CompilerInstance::createSourceManager() {
|
|
SourceMgr.reset(new SourceManager());
|
|
}
|
|
|
|
// Preprocessor
|
|
|
|
void CompilerInstance::createPreprocessor() {
|
|
PP.reset(createPreprocessor(getDiagnostics(), getLangOpts(),
|
|
getPreprocessorOpts(), getHeaderSearchOpts(),
|
|
getDependencyOutputOpts(), getTarget(),
|
|
getFrontendOpts(), getSourceManager(),
|
|
getFileManager()));
|
|
}
|
|
|
|
Preprocessor *
|
|
CompilerInstance::createPreprocessor(Diagnostic &Diags,
|
|
const LangOptions &LangInfo,
|
|
const PreprocessorOptions &PPOpts,
|
|
const HeaderSearchOptions &HSOpts,
|
|
const DependencyOutputOptions &DepOpts,
|
|
const TargetInfo &Target,
|
|
const FrontendOptions &FEOpts,
|
|
SourceManager &SourceMgr,
|
|
FileManager &FileMgr) {
|
|
// Create a PTH manager if we are using some form of a token cache.
|
|
PTHManager *PTHMgr = 0;
|
|
if (!PPOpts.TokenCache.empty())
|
|
PTHMgr = PTHManager::Create(PPOpts.TokenCache, Diags);
|
|
|
|
// Create the Preprocessor.
|
|
HeaderSearch *HeaderInfo = new HeaderSearch(FileMgr);
|
|
Preprocessor *PP = new Preprocessor(Diags, LangInfo, Target,
|
|
SourceMgr, *HeaderInfo, PTHMgr,
|
|
/*OwnsHeaderSearch=*/true);
|
|
|
|
// Note that this is different then passing PTHMgr to Preprocessor's ctor.
|
|
// That argument is used as the IdentifierInfoLookup argument to
|
|
// IdentifierTable's ctor.
|
|
if (PTHMgr) {
|
|
PTHMgr->setPreprocessor(PP);
|
|
PP->setPTHManager(PTHMgr);
|
|
}
|
|
|
|
InitializePreprocessor(*PP, PPOpts, HSOpts, FEOpts);
|
|
|
|
// Handle generating dependencies, if requested.
|
|
if (!DepOpts.OutputFile.empty())
|
|
AttachDependencyFileGen(*PP, DepOpts);
|
|
|
|
return PP;
|
|
}
|
|
|
|
// ASTContext
|
|
|
|
void CompilerInstance::createASTContext() {
|
|
Preprocessor &PP = getPreprocessor();
|
|
Context.reset(new ASTContext(getLangOpts(), PP.getSourceManager(),
|
|
getTarget(), PP.getIdentifierTable(),
|
|
PP.getSelectorTable(), PP.getBuiltinInfo(),
|
|
/*FreeMemory=*/ !getFrontendOpts().DisableFree,
|
|
/*size_reserve=*/ 0));
|
|
}
|
|
|
|
// ExternalASTSource
|
|
|
|
void CompilerInstance::createPCHExternalASTSource(llvm::StringRef Path) {
|
|
llvm::OwningPtr<ExternalASTSource> Source;
|
|
Source.reset(createPCHExternalASTSource(Path, getHeaderSearchOpts().Sysroot,
|
|
getPreprocessor(), getASTContext()));
|
|
getASTContext().setExternalSource(Source);
|
|
}
|
|
|
|
ExternalASTSource *
|
|
CompilerInstance::createPCHExternalASTSource(llvm::StringRef Path,
|
|
const std::string &Sysroot,
|
|
Preprocessor &PP,
|
|
ASTContext &Context) {
|
|
llvm::OwningPtr<PCHReader> Reader;
|
|
Reader.reset(new PCHReader(PP, &Context,
|
|
Sysroot.empty() ? 0 : Sysroot.c_str()));
|
|
|
|
switch (Reader->ReadPCH(Path)) {
|
|
case PCHReader::Success:
|
|
// Set the predefines buffer as suggested by the PCH reader. Typically, the
|
|
// predefines buffer will be empty.
|
|
PP.setPredefines(Reader->getSuggestedPredefines());
|
|
return Reader.take();
|
|
|
|
case PCHReader::Failure:
|
|
// Unrecoverable failure: don't even try to process the input file.
|
|
break;
|
|
|
|
case PCHReader::IgnorePCH:
|
|
// No suitable PCH file could be found. Return an error.
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// Code Completion
|
|
|
|
void CompilerInstance::createCodeCompletionConsumer() {
|
|
const ParsedSourceLocation &Loc = getFrontendOpts().CodeCompletionAt;
|
|
CompletionConsumer.reset(
|
|
createCodeCompletionConsumer(getPreprocessor(),
|
|
Loc.FileName, Loc.Line, Loc.Column,
|
|
getFrontendOpts().DebugCodeCompletionPrinter,
|
|
getFrontendOpts().ShowMacrosInCodeCompletion,
|
|
llvm::outs()));
|
|
|
|
if (CompletionConsumer->isOutputBinary() &&
|
|
llvm::sys::Program::ChangeStdoutToBinary()) {
|
|
getPreprocessor().getDiagnostics().Report(diag::err_fe_stdout_binary);
|
|
CompletionConsumer.reset();
|
|
}
|
|
}
|
|
|
|
void CompilerInstance::createFrontendTimer() {
|
|
FrontendTimer.reset(new llvm::Timer("Clang front-end timer"));
|
|
}
|
|
|
|
CodeCompleteConsumer *
|
|
CompilerInstance::createCodeCompletionConsumer(Preprocessor &PP,
|
|
const std::string &Filename,
|
|
unsigned Line,
|
|
unsigned Column,
|
|
bool UseDebugPrinter,
|
|
bool ShowMacros,
|
|
llvm::raw_ostream &OS) {
|
|
// Tell the source manager to chop off the given file at a specific
|
|
// line and column.
|
|
const FileEntry *Entry = PP.getFileManager().getFile(Filename);
|
|
if (!Entry) {
|
|
PP.getDiagnostics().Report(diag::err_fe_invalid_code_complete_file)
|
|
<< Filename;
|
|
return 0;
|
|
}
|
|
|
|
// Truncate the named file at the given line/column.
|
|
PP.SetCodeCompletionPoint(Entry, Line, Column);
|
|
|
|
// Set up the creation routine for code-completion.
|
|
if (UseDebugPrinter)
|
|
return new PrintingCodeCompleteConsumer(ShowMacros, OS);
|
|
else
|
|
return new CIndexCodeCompleteConsumer(ShowMacros, OS);
|
|
}
|
|
|
|
// Output Files
|
|
|
|
void CompilerInstance::addOutputFile(llvm::StringRef Path,
|
|
llvm::raw_ostream *OS) {
|
|
assert(OS && "Attempt to add empty stream to output list!");
|
|
OutputFiles.push_back(std::make_pair(Path, OS));
|
|
}
|
|
|
|
void CompilerInstance::ClearOutputFiles(bool EraseFiles) {
|
|
for (std::list< std::pair<std::string, llvm::raw_ostream*> >::iterator
|
|
it = OutputFiles.begin(), ie = OutputFiles.end(); it != ie; ++it) {
|
|
delete it->second;
|
|
if (EraseFiles && !it->first.empty())
|
|
llvm::sys::Path(it->first).eraseFromDisk();
|
|
}
|
|
OutputFiles.clear();
|
|
}
|
|
|
|
llvm::raw_fd_ostream *
|
|
CompilerInstance::createDefaultOutputFile(bool Binary,
|
|
llvm::StringRef InFile,
|
|
llvm::StringRef Extension) {
|
|
return createOutputFile(getFrontendOpts().OutputFile, Binary,
|
|
InFile, Extension);
|
|
}
|
|
|
|
llvm::raw_fd_ostream *
|
|
CompilerInstance::createOutputFile(llvm::StringRef OutputPath,
|
|
bool Binary,
|
|
llvm::StringRef InFile,
|
|
llvm::StringRef Extension) {
|
|
std::string Error, OutputPathName;
|
|
llvm::raw_fd_ostream *OS = createOutputFile(OutputPath, Error, Binary,
|
|
InFile, Extension,
|
|
&OutputPathName);
|
|
if (!OS) {
|
|
getDiagnostics().Report(diag::err_fe_unable_to_open_output)
|
|
<< OutputPath << Error;
|
|
return 0;
|
|
}
|
|
|
|
// Add the output file -- but don't try to remove "-", since this means we are
|
|
// using stdin.
|
|
addOutputFile((OutputPathName != "-") ? OutputPathName : "", OS);
|
|
|
|
return OS;
|
|
}
|
|
|
|
llvm::raw_fd_ostream *
|
|
CompilerInstance::createOutputFile(llvm::StringRef OutputPath,
|
|
std::string &Error,
|
|
bool Binary,
|
|
llvm::StringRef InFile,
|
|
llvm::StringRef Extension,
|
|
std::string *ResultPathName) {
|
|
std::string OutFile;
|
|
if (!OutputPath.empty()) {
|
|
OutFile = OutputPath;
|
|
} else if (InFile == "-") {
|
|
OutFile = "-";
|
|
} else if (!Extension.empty()) {
|
|
llvm::sys::Path Path(InFile);
|
|
Path.eraseSuffix();
|
|
Path.appendSuffix(Extension);
|
|
OutFile = Path.str();
|
|
} else {
|
|
OutFile = "-";
|
|
}
|
|
|
|
llvm::OwningPtr<llvm::raw_fd_ostream> OS(
|
|
new llvm::raw_fd_ostream(OutFile.c_str(), Error,
|
|
(Binary ? llvm::raw_fd_ostream::F_Binary : 0)));
|
|
if (!Error.empty())
|
|
return 0;
|
|
|
|
if (ResultPathName)
|
|
*ResultPathName = OutFile;
|
|
|
|
return OS.take();
|
|
}
|
|
|
|
// Initialization Utilities
|
|
|
|
bool CompilerInstance::InitializeSourceManager(llvm::StringRef InputFile) {
|
|
return InitializeSourceManager(InputFile, getDiagnostics(), getFileManager(),
|
|
getSourceManager(), getFrontendOpts());
|
|
}
|
|
|
|
bool CompilerInstance::InitializeSourceManager(llvm::StringRef InputFile,
|
|
Diagnostic &Diags,
|
|
FileManager &FileMgr,
|
|
SourceManager &SourceMgr,
|
|
const FrontendOptions &Opts) {
|
|
// Figure out where to get and map in the main file.
|
|
if (Opts.EmptyInputOnly) {
|
|
const char *EmptyStr = "";
|
|
llvm::MemoryBuffer *SB =
|
|
llvm::MemoryBuffer::getMemBuffer(EmptyStr, EmptyStr, "<empty input>");
|
|
SourceMgr.createMainFileIDForMemBuffer(SB);
|
|
} else if (InputFile != "-") {
|
|
const FileEntry *File = FileMgr.getFile(InputFile);
|
|
if (File) SourceMgr.createMainFileID(File, SourceLocation());
|
|
if (SourceMgr.getMainFileID().isInvalid()) {
|
|
Diags.Report(diag::err_fe_error_reading) << InputFile;
|
|
return false;
|
|
}
|
|
} else {
|
|
llvm::MemoryBuffer *SB = llvm::MemoryBuffer::getSTDIN();
|
|
SourceMgr.createMainFileIDForMemBuffer(SB);
|
|
if (SourceMgr.getMainFileID().isInvalid()) {
|
|
Diags.Report(diag::err_fe_error_reading_stdin);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// High-Level Operations
|
|
|
|
bool CompilerInstance::ExecuteAction(FrontendAction &Act) {
|
|
assert(hasDiagnostics() && "Diagnostics engine is not initialized!");
|
|
assert(!getFrontendOpts().ShowHelp && "Client must handle '-help'!");
|
|
assert(!getFrontendOpts().ShowVersion && "Client must handle '-version'!");
|
|
|
|
// FIXME: Take this as an argument, once all the APIs we used have moved to
|
|
// taking it as an input instead of hard-coding llvm::errs.
|
|
llvm::raw_ostream &OS = llvm::errs();
|
|
|
|
// Create the target instance.
|
|
setTarget(TargetInfo::CreateTargetInfo(getDiagnostics(), getTargetOpts()));
|
|
if (!hasTarget())
|
|
return false;
|
|
|
|
// Inform the target of the language options.
|
|
//
|
|
// FIXME: We shouldn't need to do this, the target should be immutable once
|
|
// created. This complexity should be lifted elsewhere.
|
|
getTarget().setForcedLangOptions(getLangOpts());
|
|
|
|
// Validate/process some options.
|
|
if (getHeaderSearchOpts().Verbose)
|
|
OS << "clang -cc1 version " CLANG_VERSION_STRING
|
|
<< " based upon " << PACKAGE_STRING
|
|
<< " hosted on " << llvm::sys::getHostTriple() << "\n";
|
|
|
|
if (getFrontendOpts().ShowTimers)
|
|
createFrontendTimer();
|
|
|
|
for (unsigned i = 0, e = getFrontendOpts().Inputs.size(); i != e; ++i) {
|
|
const std::string &InFile = getFrontendOpts().Inputs[i].second;
|
|
|
|
// If we aren't using an AST file, setup the file and source managers and
|
|
// the preprocessor.
|
|
bool IsAST = getFrontendOpts().Inputs[i].first == FrontendOptions::IK_AST;
|
|
if (!IsAST) {
|
|
if (!i) {
|
|
// Create a file manager object to provide access to and cache the
|
|
// filesystem.
|
|
createFileManager();
|
|
|
|
// Create the source manager.
|
|
createSourceManager();
|
|
} else {
|
|
// Reset the ID tables if we are reusing the SourceManager.
|
|
getSourceManager().clearIDTables();
|
|
}
|
|
|
|
// Create the preprocessor.
|
|
createPreprocessor();
|
|
}
|
|
|
|
if (Act.BeginSourceFile(*this, InFile, IsAST)) {
|
|
Act.Execute();
|
|
Act.EndSourceFile();
|
|
}
|
|
}
|
|
|
|
if (getDiagnosticOpts().ShowCarets)
|
|
if (unsigned NumDiagnostics = getDiagnostics().getNumDiagnostics())
|
|
OS << NumDiagnostics << " diagnostic"
|
|
<< (NumDiagnostics == 1 ? "" : "s")
|
|
<< " generated.\n";
|
|
|
|
if (getFrontendOpts().ShowStats) {
|
|
getFileManager().PrintStats();
|
|
OS << "\n";
|
|
}
|
|
|
|
// Return the appropriate status when verifying diagnostics.
|
|
//
|
|
// FIXME: If we could make getNumErrors() do the right thing, we wouldn't need
|
|
// this.
|
|
if (getDiagnosticOpts().VerifyDiagnostics)
|
|
return !static_cast<VerifyDiagnosticsClient&>(
|
|
getDiagnosticClient()).HadErrors();
|
|
|
|
return !getDiagnostics().getNumErrors();
|
|
}
|
|
|
|
|