forked from OSchip/llvm-project
Implement clang -cc1.
- I apologize for the link time horrors, my goal is to kill off clang-cc in fairly short order. llvm-svn: 91170
This commit is contained in:
Daniel Dunbar
parent
76d0994ffd
commit
f72bdf7eed
|
|
@ -2,18 +2,31 @@ set(LLVM_NO_RTTI 1)
|
|||
|
||||
set( LLVM_USED_LIBS
|
||||
clangDriver
|
||||
clangFrontend
|
||||
clangCodeGen
|
||||
clangAnalysis
|
||||
clangRewrite
|
||||
clangSema
|
||||
clangAST
|
||||
clangParse
|
||||
clangLex
|
||||
clangBasic
|
||||
)
|
||||
|
||||
set(LLVM_LINK_COMPONENTS system support bitreader bitwriter)
|
||||
set( LLVM_LINK_COMPONENTS
|
||||
${LLVM_TARGETS_TO_BUILD}
|
||||
bitreader
|
||||
bitwriter
|
||||
codegen
|
||||
ipo
|
||||
selectiondag
|
||||
)
|
||||
|
||||
add_clang_executable(clang
|
||||
driver.cpp
|
||||
cc1_main.cpp
|
||||
)
|
||||
|
||||
add_dependencies(clang clang-cc)
|
||||
|
||||
if(UNIX)
|
||||
set(CLANGXX_LINK_OR_COPY create_symlink)
|
||||
else()
|
||||
|
|
|
|||
|
|
@ -13,15 +13,20 @@ TOOLALIAS = clang++
|
|||
CPPFLAGS += -I$(PROJ_SRC_DIR)/../../include -I$(PROJ_OBJ_DIR)/../../include
|
||||
CXXFLAGS = -fno-rtti
|
||||
|
||||
# This tool has no plugins, optimize startup time.
|
||||
# Clang tool has no plugins, optimize startup time.
|
||||
TOOL_NO_EXPORTS = 1
|
||||
|
||||
# FIXME: It is unfortunate we need to pull in the bitcode reader and
|
||||
# writer just to get the serializer stuff used by clangBasic.
|
||||
LINK_COMPONENTS := system support bitreader bitwriter
|
||||
USEDLIBS = clangDriver.a clangBasic.a
|
||||
# Include this here so we can get the configuration of the targets that have
|
||||
# been configured for construction. We have to do this early so we can set up
|
||||
# LINK_COMPONENTS before including Makefile.rules
|
||||
include $(LEVEL)/Makefile.config
|
||||
|
||||
include $(LEVEL)/Makefile.common
|
||||
LINK_COMPONENTS := $(TARGETS_TO_BUILD) bitreader bitwriter codegen ipo selectiondag
|
||||
USEDLIBS = clangFrontend.a clangDriver.a clangCodeGen.a clangAnalysis.a \
|
||||
clangRewrite.a clangSema.a clangAST.a clangParse.a \
|
||||
clangLex.a clangBasic.a
|
||||
|
||||
include $(LLVM_SRC_ROOT)/Makefile.rules
|
||||
|
||||
# Translate make variable to define when building a "production" clang.
|
||||
ifdef CLANG_IS_PRODUCTION
|
||||
|
|
|
|||
|
|
@ -7,18 +7,328 @@
|
|||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// This is the entry point to the clang -cc1 functionality.
|
||||
// This is the entry point to the clang -cc1 functionality, which implements the
|
||||
// core compiler functionality along with a number of additional tools for
|
||||
// demonstration and testing purposes.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#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/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/Frontend/CompilerInstance.h"
|
||||
#include "clang/Frontend/CompilerInvocation.h"
|
||||
#include "clang/Frontend/FrontendActions.h"
|
||||
#include "clang/Frontend/FrontendDiagnostic.h"
|
||||
#include "clang/Frontend/FrontendPluginRegistry.h"
|
||||
#include "clang/Frontend/TextDiagnosticBuffer.h"
|
||||
#include "clang/Frontend/TextDiagnosticPrinter.h"
|
||||
#include "clang/Frontend/VerifyDiagnosticsClient.h"
|
||||
#include "llvm/LLVMContext.h"
|
||||
#include "llvm/ADT/OwningPtr.h"
|
||||
#include "llvm/Support/ErrorHandling.h"
|
||||
#include "llvm/Support/ManagedStatic.h"
|
||||
#include "llvm/Support/PrettyStackTrace.h"
|
||||
#include "llvm/Support/raw_ostream.h"
|
||||
#include "llvm/System/DynamicLibrary.h"
|
||||
#include "llvm/System/Host.h"
|
||||
#include "llvm/System/Path.h"
|
||||
#include "llvm/System/Signals.h"
|
||||
#include "llvm/Target/TargetSelect.h"
|
||||
#include <cstdio>
|
||||
using namespace clang;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Main driver
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
void LLVMErrorHandler(void *UserData, const std::string &Message) {
|
||||
Diagnostic &Diags = *static_cast<Diagnostic*>(UserData);
|
||||
|
||||
Diags.Report(diag::err_fe_error_backend) << Message;
|
||||
|
||||
// We cannot recover from llvm errors.
|
||||
exit(1);
|
||||
}
|
||||
|
||||
static FrontendAction *CreateFrontendAction(CompilerInstance &CI) {
|
||||
using namespace clang::frontend;
|
||||
|
||||
switch (CI.getFrontendOpts().ProgramAction) {
|
||||
default:
|
||||
llvm::llvm_unreachable("Invalid program action!");
|
||||
|
||||
case ASTDump: return new ASTDumpAction();
|
||||
case ASTPrint: return new ASTPrintAction();
|
||||
case ASTPrintXML: return new ASTPrintXMLAction();
|
||||
case ASTView: return new ASTViewAction();
|
||||
case DumpRawTokens: return new DumpRawTokensAction();
|
||||
case DumpRecordLayouts: return new DumpRecordAction();
|
||||
case DumpTokens: return new DumpTokensAction();
|
||||
case EmitAssembly: return new EmitAssemblyAction();
|
||||
case EmitBC: return new EmitBCAction();
|
||||
case EmitHTML: return new HTMLPrintAction();
|
||||
case EmitLLVM: return new EmitLLVMAction();
|
||||
case EmitLLVMOnly: return new EmitLLVMOnlyAction();
|
||||
case FixIt: return new FixItAction();
|
||||
case GeneratePCH: return new GeneratePCHAction();
|
||||
case GeneratePTH: return new GeneratePTHAction();
|
||||
case InheritanceView: return new InheritanceViewAction();
|
||||
case ParseNoop: return new ParseOnlyAction();
|
||||
case ParsePrintCallbacks: return new PrintParseAction();
|
||||
case ParseSyntaxOnly: return new SyntaxOnlyAction();
|
||||
|
||||
case PluginAction: {
|
||||
if (CI.getFrontendOpts().ActionName == "help") {
|
||||
llvm::errs() << "clang -cc1 plugins:\n";
|
||||
for (FrontendPluginRegistry::iterator it =
|
||||
FrontendPluginRegistry::begin(),
|
||||
ie = FrontendPluginRegistry::end();
|
||||
it != ie; ++it)
|
||||
llvm::errs() << " " << it->getName() << " - " << it->getDesc() << "\n";
|
||||
return 0;
|
||||
}
|
||||
|
||||
for (FrontendPluginRegistry::iterator it =
|
||||
FrontendPluginRegistry::begin(), ie = FrontendPluginRegistry::end();
|
||||
it != ie; ++it) {
|
||||
if (it->getName() == CI.getFrontendOpts().ActionName)
|
||||
return it->instantiate();
|
||||
}
|
||||
|
||||
CI.getDiagnostics().Report(diag::err_fe_invalid_plugin_name)
|
||||
<< CI.getFrontendOpts().ActionName;
|
||||
return 0;
|
||||
}
|
||||
|
||||
case PrintDeclContext: return new DeclContextPrintAction();
|
||||
case PrintPreprocessedInput: return new PrintPreprocessedAction();
|
||||
case RewriteBlocks: return new RewriteBlocksAction();
|
||||
case RewriteMacros: return new RewriteMacrosAction();
|
||||
case RewriteObjC: return new RewriteObjCAction();
|
||||
case RewriteTest: return new RewriteTestAction();
|
||||
case RunAnalysis: return new AnalysisAction();
|
||||
case RunPreprocessorOnly: return new PreprocessOnlyAction();
|
||||
}
|
||||
}
|
||||
|
||||
// FIXME: Define the need for this testing away.
|
||||
static int cc1_test(Diagnostic &Diags,
|
||||
const char **ArgBegin, const char **ArgEnd,
|
||||
const char *Argv0, void *MainAddr) {
|
||||
using namespace clang::driver;
|
||||
|
||||
int cc1_main(const char **ArgBegin, const char **ArgEnd,
|
||||
const char *Argv0, void *MainAddr) {
|
||||
llvm::errs() << "cc1 argv:";
|
||||
for (const char **i = ArgBegin; i != ArgEnd; ++i)
|
||||
llvm::errs() << " \"" << *i << '"';
|
||||
llvm::errs() << "\n";
|
||||
|
||||
// Parse the arguments.
|
||||
OptTable *Opts = createCC1OptTable();
|
||||
unsigned MissingArgIndex, MissingArgCount;
|
||||
InputArgList *Args = Opts->ParseArgs(ArgBegin, ArgEnd,
|
||||
MissingArgIndex, MissingArgCount);
|
||||
|
||||
// Check for missing argument error.
|
||||
if (MissingArgCount)
|
||||
Diags.Report(clang::diag::err_drv_missing_argument)
|
||||
<< Args->getArgString(MissingArgIndex) << MissingArgCount;
|
||||
|
||||
// Dump the parsed arguments.
|
||||
llvm::errs() << "cc1 parsed options:\n";
|
||||
for (ArgList::const_iterator it = Args->begin(), ie = Args->end();
|
||||
it != ie; ++it)
|
||||
(*it)->dump();
|
||||
|
||||
// Create a compiler invocation.
|
||||
llvm::errs() << "cc1 creating invocation.\n";
|
||||
CompilerInvocation Invocation;
|
||||
CompilerInvocation::CreateFromArgs(Invocation, ArgBegin, ArgEnd,
|
||||
Argv0, MainAddr, Diags);
|
||||
|
||||
// Convert the invocation back to argument strings.
|
||||
std::vector<std::string> InvocationArgs;
|
||||
Invocation.toArgs(InvocationArgs);
|
||||
|
||||
// Dump the converted arguments.
|
||||
llvm::SmallVector<const char*, 32> Invocation2Args;
|
||||
llvm::errs() << "invocation argv :";
|
||||
for (unsigned i = 0, e = InvocationArgs.size(); i != e; ++i) {
|
||||
Invocation2Args.push_back(InvocationArgs[i].c_str());
|
||||
llvm::errs() << " \"" << InvocationArgs[i] << '"';
|
||||
}
|
||||
llvm::errs() << "\n";
|
||||
|
||||
// Convert those arguments to another invocation, and check that we got the
|
||||
// same thing.
|
||||
CompilerInvocation Invocation2;
|
||||
CompilerInvocation::CreateFromArgs(Invocation2, Invocation2Args.begin(),
|
||||
Invocation2Args.end(), Argv0, MainAddr,
|
||||
Diags);
|
||||
|
||||
// FIXME: Implement CompilerInvocation comparison.
|
||||
if (true) {
|
||||
//llvm::errs() << "warning: Invocations differ!\n";
|
||||
|
||||
std::vector<std::string> Invocation2Args;
|
||||
Invocation2.toArgs(Invocation2Args);
|
||||
llvm::errs() << "invocation2 argv:";
|
||||
for (unsigned i = 0, e = Invocation2Args.size(); i != e; ++i)
|
||||
llvm::errs() << " \"" << Invocation2Args[i] << '"';
|
||||
llvm::errs() << "\n";
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int cc1_main(const char **ArgBegin, const char **ArgEnd,
|
||||
const char *Argv0, void *MainAddr) {
|
||||
llvm::sys::PrintStackTraceOnErrorSignal();
|
||||
llvm::PrettyStackTraceProgram X(ArgBegin - ArgEnd, ArgBegin);
|
||||
CompilerInstance Clang(&llvm::getGlobalContext(), false);
|
||||
|
||||
// Run clang -cc1 test.
|
||||
if (ArgBegin != ArgEnd && llvm::StringRef(ArgBegin[0]) == "-cc1test") {
|
||||
TextDiagnosticPrinter DiagClient(llvm::errs(), DiagnosticOptions());
|
||||
Diagnostic Diags(&DiagClient);
|
||||
return cc1_test(Diags, ArgBegin + 1, ArgEnd, Argv0, MainAddr);
|
||||
}
|
||||
|
||||
// Initialize targets first, so that --version shows registered targets.
|
||||
llvm::InitializeAllTargets();
|
||||
llvm::InitializeAllAsmPrinters();
|
||||
|
||||
// Buffer diagnostics from argument parsing so that we can output them using a
|
||||
// well formed diagnostic object.
|
||||
TextDiagnosticBuffer DiagsBuffer;
|
||||
Diagnostic Diags(&DiagsBuffer);
|
||||
CompilerInvocation::CreateFromArgs(Clang.getInvocation(), ArgBegin, ArgEnd,
|
||||
Argv0, MainAddr, Diags);
|
||||
|
||||
// Honor -help.
|
||||
if (Clang.getInvocation().getFrontendOpts().ShowHelp) {
|
||||
llvm::OwningPtr<driver::OptTable> Opts(driver::createCC1OptTable());
|
||||
Opts->PrintHelp(llvm::outs(), "clang -cc1",
|
||||
"LLVM 'Clang' Compiler: http://clang.llvm.org");
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Honor -version.
|
||||
//
|
||||
// FIXME: Use a better -version message?
|
||||
if (Clang.getInvocation().getFrontendOpts().ShowVersion) {
|
||||
llvm::cl::PrintVersionMessage();
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Create the actual diagnostics engine.
|
||||
Clang.createDiagnostics(ArgEnd - ArgBegin, const_cast<char**>(ArgBegin));
|
||||
if (!Clang.hasDiagnostics())
|
||||
return 1;
|
||||
|
||||
// Set an error handler, so that any LLVM backend diagnostics go through our
|
||||
// error handler.
|
||||
llvm::llvm_install_error_handler(LLVMErrorHandler,
|
||||
static_cast<void*>(&Clang.getDiagnostics()));
|
||||
|
||||
DiagsBuffer.FlushDiagnostics(Clang.getDiagnostics());
|
||||
|
||||
// Load any requested plugins.
|
||||
for (unsigned i = 0,
|
||||
e = Clang.getFrontendOpts().Plugins.size(); i != e; ++i) {
|
||||
const std::string &Path = Clang.getFrontendOpts().Plugins[i];
|
||||
std::string Error;
|
||||
if (llvm::sys::DynamicLibrary::LoadLibraryPermanently(Path.c_str(), &Error))
|
||||
Diags.Report(diag::err_fe_unable_to_load_plugin) << Path << Error;
|
||||
}
|
||||
|
||||
// If there were any errors in processing arguments, exit now.
|
||||
if (Clang.getDiagnostics().getNumErrors())
|
||||
return 1;
|
||||
|
||||
// Create the target instance.
|
||||
Clang.setTarget(TargetInfo::CreateTargetInfo(Clang.getDiagnostics(),
|
||||
Clang.getTargetOpts()));
|
||||
if (!Clang.hasTarget())
|
||||
return 1;
|
||||
|
||||
// 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.
|
||||
Clang.getTarget().setForcedLangOptions(Clang.getLangOpts());
|
||||
|
||||
// Validate/process some options
|
||||
if (Clang.getHeaderSearchOpts().Verbose)
|
||||
llvm::errs() << "clang -cc1 version " CLANG_VERSION_STRING
|
||||
<< " based upon " << PACKAGE_STRING
|
||||
<< " hosted on " << llvm::sys::getHostTriple() << "\n";
|
||||
|
||||
if (Clang.getFrontendOpts().ShowTimers)
|
||||
Clang.createFrontendTimer();
|
||||
|
||||
for (unsigned i = 0, e = Clang.getFrontendOpts().Inputs.size(); i != e; ++i) {
|
||||
const std::string &InFile = Clang.getFrontendOpts().Inputs[i].second;
|
||||
|
||||
// If we aren't using an AST file, setup the file and source managers and
|
||||
// the preprocessor.
|
||||
bool IsAST =
|
||||
Clang.getFrontendOpts().Inputs[i].first == FrontendOptions::IK_AST;
|
||||
if (!IsAST) {
|
||||
if (!i) {
|
||||
// Create a file manager object to provide access to and cache the
|
||||
// filesystem.
|
||||
Clang.createFileManager();
|
||||
|
||||
// Create the source manager.
|
||||
Clang.createSourceManager();
|
||||
} else {
|
||||
// Reset the ID tables if we are reusing the SourceManager.
|
||||
Clang.getSourceManager().clearIDTables();
|
||||
}
|
||||
|
||||
// Create the preprocessor.
|
||||
Clang.createPreprocessor();
|
||||
}
|
||||
|
||||
llvm::OwningPtr<FrontendAction> Act(CreateFrontendAction(Clang));
|
||||
if (!Act)
|
||||
break;
|
||||
|
||||
if (Act->BeginSourceFile(Clang, InFile, IsAST)) {
|
||||
Act->Execute();
|
||||
Act->EndSourceFile();
|
||||
}
|
||||
}
|
||||
|
||||
if (Clang.getDiagnosticOpts().ShowCarets)
|
||||
if (unsigned NumDiagnostics = Clang.getDiagnostics().getNumDiagnostics())
|
||||
fprintf(stderr, "%d diagnostic%s generated.\n", NumDiagnostics,
|
||||
(NumDiagnostics == 1 ? "" : "s"));
|
||||
|
||||
if (Clang.getFrontendOpts().ShowStats) {
|
||||
Clang.getFileManager().PrintStats();
|
||||
fprintf(stderr, "\n");
|
||||
}
|
||||
|
||||
// Return the appropriate status when verifying diagnostics.
|
||||
//
|
||||
// FIXME: If we could make getNumErrors() do the right thing, we wouldn't need
|
||||
// this.
|
||||
if (Clang.getDiagnosticOpts().VerifyDiagnostics)
|
||||
return static_cast<VerifyDiagnosticsClient&>(
|
||||
Clang.getDiagnosticClient()).HadErrors();
|
||||
|
||||
// Managed static deconstruction. Useful for making things like
|
||||
// -time-passes usable.
|
||||
llvm::llvm_shutdown();
|
||||
|
||||
return (Clang.getDiagnostics().getNumErrors() != 0);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue