CompilerInstance* CIFactory::createCI(llvm::MemoryBuffer* buffer,
int argc,
const char* const *argv,
const char* llvmdir) {
// Create an instance builder, passing the llvmdir and arguments.
//
// Initialize the llvm library.
llvm::InitializeNativeTarget();
llvm::InitializeAllAsmPrinters();
llvm::sys::Path resource_path;
if (llvmdir) {
resource_path = llvmdir;
resource_path.appendComponent("lib");
resource_path.appendComponent("clang");
resource_path.appendComponent(CLANG_VERSION_STRING);
} else {
// FIXME: The first arg really does need to be argv[0] on FreeBSD.
//
// Note: The second arg is not used for Apple, FreeBSD, Linux,
// or cygwin, and can only be used on systems which support
// the use of dladdr().
//
// Note: On linux and cygwin this uses /proc/self/exe to find the path.
//
// Note: On Apple it uses _NSGetExecutablePath().
//
// Note: On FreeBSD it uses getprogpath().
//
// Note: Otherwise it uses dladdr().
//
resource_path
= CompilerInvocation::GetResourcesPath("cling",
(void*)(intptr_t) locate_cling_executable
);
}
if (!resource_path.canRead()) {
llvm::errs()
<< "ERROR in cling::CIFactory::createCI():\n resource directory "
<< resource_path.str() << " not found!\n";
resource_path = "";
}
//______________________________________
DiagnosticOptions* DefaultDiagnosticOptions = new DiagnosticOptions();
DefaultDiagnosticOptions->ShowColors = llvm::sys::Process::StandardErrHasColors() ? 1 : 0;
TextDiagnosticPrinter* DiagnosticPrinter
= new TextDiagnosticPrinter(llvm::errs(), DefaultDiagnosticOptions);
llvm::IntrusiveRefCntPtr<clang::DiagnosticIDs> DiagIDs(new DiagnosticIDs());
DiagnosticsEngine* Diagnostics
= new DiagnosticsEngine(DiagIDs, DefaultDiagnosticOptions,
DiagnosticPrinter, /*Owns it*/ true); // LEAKS!
std::vector<const char*> argvCompile(argv, argv + argc);
// We do C++ by default; append right after argv[0] name
// Only insert it if there is no other "-x":
bool haveMinusX = false;
for (const char* const* iarg = argv; !haveMinusX && iarg < argv + argc;
++iarg) {
haveMinusX = !strcmp(*iarg, "-x");
}
if (!haveMinusX) {
argvCompile.insert(argvCompile.begin() + 1,"-x");
argvCompile.insert(argvCompile.begin() + 2, "c++");
}
argvCompile.push_back("-c");
argvCompile.push_back("-");
clang::driver::Driver Driver(argv[0], llvm::sys::getDefaultTargetTriple(),
"cling.out",
*Diagnostics);
//Driver.setWarnMissingInput(false);
Driver.setCheckInputsExist(false); // think foo.C(12)
llvm::ArrayRef<const char*>RF(&(argvCompile[0]), argvCompile.size());
llvm::OwningPtr<clang::driver::Compilation>
Compilation(Driver.BuildCompilation(RF));
const clang::driver::ArgStringList* CC1Args
= GetCC1Arguments(Diagnostics, Compilation.get());
if (CC1Args == NULL) {
return 0;
}
clang::CompilerInvocation*
Invocation = new clang::CompilerInvocation;
clang::CompilerInvocation::CreateFromArgs(*Invocation, CC1Args->data() + 1,
CC1Args->data() + CC1Args->size(),
*Diagnostics);
Invocation->getFrontendOpts().DisableFree = true;
if (Invocation->getHeaderSearchOpts().UseBuiltinIncludes &&
!resource_path.empty()) {
// Update ResourceDir
// header search opts' entry for resource_path/include isn't
// updated by providing a new resource path; update it manually.
clang::HeaderSearchOptions& Opts = Invocation->getHeaderSearchOpts();
llvm::sys::Path oldResInc(Opts.ResourceDir);
oldResInc.appendComponent("include");
llvm::sys::Path newResInc(resource_path);
newResInc.appendComponent("include");
bool foundOldResInc = false;
for (unsigned i = 0, e = Opts.UserEntries.size();
!foundOldResInc && i != e; ++i) {
HeaderSearchOptions::Entry &E = Opts.UserEntries[i];
if (!E.IsFramework && E.Group == clang::frontend::System
&& E.IgnoreSysRoot && oldResInc.str() == E.Path) {
E.Path = newResInc.str();
foundOldResInc = true;
}
}
Opts.ResourceDir = resource_path.str();
}
// Create and setup a compiler instance.
CompilerInstance* CI = new CompilerInstance();
CI->setInvocation(Invocation);
CI->createDiagnostics(DiagnosticPrinter, /*ShouldOwnClient=*/ false,
/*ShouldCloneClient=*/ false);
{
//
// Buffer the error messages while we process
// the compiler options.
//
// Set the language options, which cling needs
SetClingCustomLangOpts(CI->getLangOpts());
CI->getInvocation().getPreprocessorOpts().addMacroDef("__CLING__");
if (CI->getLangOpts().CPlusPlus11 == 1) {
// http://llvm.org/bugs/show_bug.cgi?id=13530
CI->getInvocation().getPreprocessorOpts()
.addMacroDef("__CLING__CXX11");
}
if (CI->getDiagnostics().hasErrorOccurred()) {
delete CI;
CI = 0;
return 0;
}
}
CI->setTarget(TargetInfo::CreateTargetInfo(CI->getDiagnostics(),
&Invocation->getTargetOpts()));
if (!CI->hasTarget()) {
delete CI;
CI = 0;
return 0;
}
CI->getTarget().setForcedLangOptions(CI->getLangOpts());
SetClingTargetLangOpts(CI->getLangOpts(), CI->getTarget());
if (CI->getTarget().getTriple().getOS() == llvm::Triple::Cygwin) {
// clang "forgets" the basic arch part needed by winnt.h:
if (CI->getTarget().getTriple().getArch() == llvm::Triple::x86) {
CI->getInvocation().getPreprocessorOpts().addMacroDef("_X86_=1");
} else if (CI->getTarget().getTriple().getArch()
== llvm::Triple::x86_64) {
CI->getInvocation().getPreprocessorOpts().addMacroDef("__x86_64=1");
} else {
llvm::errs() << "Warning: unhandled target architecture "
<< CI->getTarget().getTriple().getArchName() << '\n';
}
}
// Set up source and file managers
CI->createFileManager();
SourceManager* SM = new SourceManager(CI->getDiagnostics(),
CI->getFileManager(),
/*UserFilesAreVolatile*/ true);
CI->setSourceManager(SM); // FIXME: SM leaks.
// Set up the memory buffer
if (buffer)
CI->getSourceManager().createMainFileIDForMemBuffer(buffer);
else {
// As main file we want
// * a virtual file that is claiming to be huge
// * with an empty memory buffer attached (to bring the content)
SourceManager& SM = CI->getSourceManager();
FileManager& FM = SM.getFileManager();
// Build the virtual file
const char* Filename = "InteractiveInputLineIncluder.h";
const std::string& CGOptsMainFileName
= CI->getInvocation().getCodeGenOpts().MainFileName;
if (!CGOptsMainFileName.empty())
Filename = CGOptsMainFileName.c_str();
const FileEntry* FE
= FM.getVirtualFile(Filename, 1U << 15U, time(0));
FileID MainFileID = SM.createMainFileID(FE, SrcMgr::C_User);
const SrcMgr::SLocEntry& MainFileSLocE = SM.getSLocEntry(MainFileID);
const SrcMgr::ContentCache* MainFileCC
= MainFileSLocE.getFile().getContentCache();
llvm::MemoryBuffer* MainFileMB
= llvm::MemoryBuffer::getMemBuffer("/*CLING MAIN FILE*/\n");
const_cast<SrcMgr::ContentCache*>(MainFileCC)->setBuffer(MainFileMB);
}
// Set up the preprocessor
CI->createPreprocessor();
Preprocessor& PP = CI->getPreprocessor();
PP.getBuiltinInfo().InitializeBuiltins(PP.getIdentifierTable(),
PP.getLangOpts());
// Set up the ASTContext
ASTContext *Ctx = new ASTContext(CI->getLangOpts(),
PP.getSourceManager(), &CI->getTarget(),
PP.getIdentifierTable(),
PP.getSelectorTable(), PP.getBuiltinInfo(),
/*size_reserve*/0, /*DelayInit*/false);
CI->setASTContext(Ctx);
// Set up the ASTConsumers
CI->setASTConsumer(new DeclCollector());
// Set up Sema
CodeCompleteConsumer* CCC = 0;
CI->createSema(TU_Complete, CCC);
// Set CodeGen options
// CI->getCodeGenOpts().DebugInfo = 1; // want debug info
// CI->getCodeGenOpts().EmitDeclMetadata = 1; // For unloading, for later
CI->getCodeGenOpts().OptimizationLevel = 0; // see pure SSA, that comes out
CI->getCodeGenOpts().CXXCtorDtorAliases = 0; // aliasing the complete
// ctor to the base ctor causes
// the JIT to crash
// When asserts are on, TURN ON not compare the VerifyModule
assert(CI->getCodeGenOpts().VerifyModule = 1);
return CI;
}
CompilerInstance* CIFactory::createCI(llvm::MemoryBuffer* buffer,
int argc,
const char* const *argv,
const char* llvmdir) {
// Create an instance builder, passing the llvmdir and arguments.
//
// Initialize the llvm library.
llvm::InitializeNativeTarget();
llvm::InitializeAllAsmPrinters();
llvm::sys::Path resource_path;
if (llvmdir) {
resource_path = llvmdir;
resource_path.appendComponent("lib");
resource_path.appendComponent("clang");
resource_path.appendComponent(CLANG_VERSION_STRING);
} else {
// FIXME: The first arg really does need to be argv[0] on FreeBSD.
//
// Note: The second arg is not used for Apple, FreeBSD, Linux,
// or cygwin, and can only be used on systems which support
// the use of dladdr().
//
// Note: On linux and cygwin this uses /proc/self/exe to find the path.
//
// Note: On Apple it uses _NSGetExecutablePath().
//
// Note: On FreeBSD it uses getprogpath().
//
// Note: Otherwise it uses dladdr().
//
resource_path
= CompilerInvocation::GetResourcesPath("cling",
(void*)(intptr_t) locate_cling_executable
);
}
if (!resource_path.canRead()) {
llvm::errs()
<< "ERROR in cling::CIFactory::createCI():\n resource directory "
<< resource_path.str() << " not found!\n";
resource_path = "";
}
//______________________________________
DiagnosticOptions DefaultDiagnosticOptions;
DefaultDiagnosticOptions.ShowColors = 1;
TextDiagnosticPrinter* DiagnosticPrinter
= new TextDiagnosticPrinter(llvm::errs(), DefaultDiagnosticOptions);
llvm::IntrusiveRefCntPtr<clang::DiagnosticIDs> DiagIDs(new DiagnosticIDs());
DiagnosticsEngine* Diagnostics
= new DiagnosticsEngine(DiagIDs, DiagnosticPrinter,
/*Owns it*/ true); // LEAKS!
std::vector<const char*> argvCompile(argv, argv + argc);
// We do C++ by default; append right after argv[0] name
// Only insert it if there is no other "-x":
bool haveMinusX = false;
for (const char* const* iarg = argv; !haveMinusX && iarg < argv + argc;
++iarg) {
haveMinusX = !strcmp(*iarg, "-x");
}
if (!haveMinusX) {
argvCompile.insert(argvCompile.begin() + 1,"-x");
argvCompile.insert(argvCompile.begin() + 2, "c++");
}
argvCompile.push_back("-c");
argvCompile.push_back("-");
bool IsProduction = false;
assert(IsProduction = true && "set IsProduction if asserts are on.");
clang::driver::Driver Driver(argv[0], llvm::sys::getDefaultTargetTriple(),
"cling.out",
IsProduction,
*Diagnostics);
//Driver.setWarnMissingInput(false);
Driver.setCheckInputsExist(false); // think foo.C(12)
llvm::ArrayRef<const char*>RF(&(argvCompile[0]), argvCompile.size());
llvm::OwningPtr<clang::driver::Compilation>
Compilation(Driver.BuildCompilation(RF));
const clang::driver::ArgStringList* CC1Args
= GetCC1Arguments(Diagnostics, Compilation.get());
if (CC1Args == NULL) {
return 0;
}
clang::CompilerInvocation*
Invocation = new clang::CompilerInvocation; // LEAKS!
clang::CompilerInvocation::CreateFromArgs(*Invocation, CC1Args->data() + 1,
CC1Args->data() + CC1Args->size(),
*Diagnostics);
Invocation->getFrontendOpts().DisableFree = true;
if (Invocation->getHeaderSearchOpts().UseBuiltinIncludes &&
!resource_path.empty()) {
// Update ResourceDir
// header search opts' entry for resource_path/include isn't
// updated by providing a new resource path; update it manually.
clang::HeaderSearchOptions& Opts = Invocation->getHeaderSearchOpts();
llvm::sys::Path oldResInc(Opts.ResourceDir);
oldResInc.appendComponent("include");
llvm::sys::Path newResInc(resource_path);
newResInc.appendComponent("include");
bool foundOldResInc = false;
for (unsigned i = 0, e = Opts.UserEntries.size();
!foundOldResInc && i != e; ++i) {
HeaderSearchOptions::Entry &E = Opts.UserEntries[i];
if (!E.IsUserSupplied && !E.IsFramework
&& E.Group == clang::frontend::System && E.IgnoreSysRoot
&& E.IsInternal && !E.ImplicitExternC
&& oldResInc.str() == E.Path) {
E.Path = newResInc.str();
foundOldResInc = true;
}
}
Opts.ResourceDir = resource_path.str();
}
// Create and setup a compiler instance.
CompilerInstance* CI = new CompilerInstance();
CI->setInvocation(Invocation);
CI->createDiagnostics(CC1Args->size(), CC1Args->data() + 1);
{
//
// Buffer the error messages while we process
// the compiler options.
//
// Set the language options, which cling needs
SetClingCustomLangOpts(CI->getLangOpts());
CI->getInvocation().getPreprocessorOpts().addMacroDef("__CLING__");
if (CI->getDiagnostics().hasErrorOccurred()) {
delete CI;
CI = 0;
return 0;
}
}
CI->setTarget(TargetInfo::CreateTargetInfo(CI->getDiagnostics(),
Invocation->getTargetOpts()));
if (!CI->hasTarget()) {
delete CI;
CI = 0;
return 0;
}
CI->getTarget().setForcedLangOptions(CI->getLangOpts());
SetClingTargetLangOpts(CI->getLangOpts(), CI->getTarget());
// Set up source and file managers
CI->createFileManager();
CI->createSourceManager(CI->getFileManager());
// Set up the memory buffer
if (buffer)
CI->getSourceManager().createMainFileIDForMemBuffer(buffer);
// Set up the preprocessor
CI->createPreprocessor();
Preprocessor& PP = CI->getPreprocessor();
PP.getBuiltinInfo().InitializeBuiltins(PP.getIdentifierTable(),
PP.getLangOpts());
// Set up the ASTContext
ASTContext *Ctx = new ASTContext(CI->getLangOpts(),
PP.getSourceManager(), &CI->getTarget(),
PP.getIdentifierTable(),
PP.getSelectorTable(), PP.getBuiltinInfo(),
/*size_reserve*/0, /*DelayInit*/false);
CI->setASTContext(Ctx);
// Set up the ASTConsumers
CI->setASTConsumer(new DeclCollector());
// Set up Sema
CodeCompleteConsumer* CCC = 0;
CI->createSema(TU_Prefix, CCC);
// Set CodeGen options
// CI->getCodeGenOpts().DebugInfo = 1; // want debug info
// CI->getCodeGenOpts().EmitDeclMetadata = 1; // For unloading, for later
CI->getCodeGenOpts().OptimizationLevel = 0; // see pure SSA, that comes out
// When asserts are on, TURN ON not compare the VerifyModule
assert(CI->getCodeGenOpts().VerifyModule = 1);
return CI;
}