/// selectTarget - Pick a target either via -march or by guessing the native
/// arch. Add any CPU features specified via -mcpu or -mattr.
TargetMachine *EngineBuilder::selectTarget(const Triple &TargetTriple,
StringRef MArch,
StringRef MCPU,
const SmallVectorImpl<std::string>& MAttrs) {
Triple TheTriple(TargetTriple);
if (TheTriple.getTriple().empty())
TheTriple.setTriple(sys::getDefaultTargetTriple());
// Adjust the triple to match what the user requested.
const Target *TheTarget = 0;
if (!MArch.empty()) {
for (TargetRegistry::iterator it = TargetRegistry::begin(),
ie = TargetRegistry::end(); it != ie; ++it) {
if (MArch == it->getName()) {
TheTarget = &*it;
break;
}
}
if (!TheTarget) {
if (ErrorStr)
*ErrorStr = "No available targets are compatible with this -march, "
"see -version for the available targets.\n";
return 0;
}
// Adjust the triple to match (if known), otherwise stick with the
// requested/host triple.
Triple::ArchType Type = Triple::getArchTypeForLLVMName(MArch);
if (Type != Triple::UnknownArch)
TheTriple.setArch(Type);
} else {
std::string Error;
TheTarget = TargetRegistry::lookupTarget(TheTriple.getTriple(), Error);
if (TheTarget == 0) {
if (ErrorStr)
*ErrorStr = Error;
return 0;
}
}
// Package up features to be passed to target/subtarget
std::string FeaturesStr;
if (!MAttrs.empty()) {
SubtargetFeatures Features;
for (unsigned i = 0; i != MAttrs.size(); ++i)
Features.AddFeature(MAttrs[i]);
FeaturesStr = Features.getString();
}
// Allocate a target...
TargetMachine *Target = TheTarget->createTargetMachine(TheTriple.getTriple(),
MCPU, FeaturesStr,
Options,
RelocModel, CMModel,
OptLevel);
assert(Target && "Could not allocate target machine!");
return Target;
}
LLVMTargetRef LLVMGetTargetFromName(const char *Name) {
StringRef NameRef = Name;
for (TargetRegistry::iterator IT = TargetRegistry::begin(),
IE = TargetRegistry::end(); IT != IE; ++IT) {
if (IT->getName() == NameRef)
return wrap(&*IT);
}
return nullptr;
}
void TargetRegistry::printRegisteredTargetsForVersion() {
std::vector<std::pair<StringRef, const Target*> > Targets;
size_t Width = 0;
for (TargetRegistry::iterator I = TargetRegistry::begin(),
E = TargetRegistry::end();
I != E; ++I) {
Targets.push_back(std::make_pair(I->getName(), &*I));
Width = std::max(Width, Targets.back().first.size());
}
array_pod_sort(Targets.begin(), Targets.end(), TargetArraySortFn);
raw_ostream &OS = outs();
OS << " Registered Targets:\n";
for (unsigned i = 0, e = Targets.size(); i != e; ++i) {
OS << " " << Targets[i].first;
OS.indent(Width - Targets[i].first.size()) << " - "
<< Targets[i].second->getShortDescription() << '\n';
}
if (Targets.empty())
OS << " (none)\n";
}
const Target *TargetRegistry::lookupTarget(const std::string &ArchName,
Triple &TheTriple,
std::string &Error) {
// Allocate target machine. First, check whether the user has explicitly
// specified an architecture to compile for. If so we have to look it up by
// name, because it might be a backend that has no mapping to a target triple.
const Target *TheTarget = nullptr;
if (!ArchName.empty()) {
for (TargetRegistry::iterator it = TargetRegistry::begin(),
ie = TargetRegistry::end(); it != ie; ++it) {
if (ArchName == it->getName()) {
TheTarget = &*it;
break;
}
}
if (!TheTarget) {
Error = "error: invalid target '" + ArchName + "'.\n";
return nullptr;
}
// Adjust the triple to match (if known), otherwise stick with the
// given triple.
Triple::ArchType Type = Triple::getArchTypeForLLVMName(ArchName);
if (Type != Triple::UnknownArch)
TheTriple.setArch(Type);
} else {
// Get the target specific parser.
std::string TempError;
TheTarget = TargetRegistry::lookupTarget(TheTriple.getTriple(), TempError);
if (!TheTarget) {
Error = ": error: unable to get target for '"
+ TheTriple.getTriple()
+ "', see --version and --triple.\n";
return nullptr;
}
}
return TheTarget;
}
LLVMTargetMachineRef LLVMCreateTargetMachine(const char* cpu, const char* triple, const char** feats, size_t nfeats)
{
// based on LDC code
// find target from the given triple and cpu
const Target* target = NULL;
for (TargetRegistry::iterator it = TargetRegistry::begin(),
ie = TargetRegistry::end(); it != ie; ++it)
{
#if 0
printf("cpu: %s target: %s\n", cpu, it->getName());
#endif
if (strcmp(cpu, it->getName()) == 0)
{
target = &*it;
break;
}
}
assert(target != NULL);
// add any features the user might have provided
Twine twine;
SubtargetFeatures features;
//features.setCPU(cpu);
for (size_t i = 0; i < nfeats; ++i)
{
features.AddFeature(feats[i]);
twine = twine.concat(features.getString());
}
// create machine
TargetMachine* targetMachine = target->createTargetMachine(triple, twine.str());
if (!targetMachine)
return NULL;
return wrap(targetMachine);
}
/// selectTarget - Pick a target either via -march or by guessing the native
/// arch. Add any CPU features specified via -mcpu or -mattr.
TargetMachine *MCJIT::selectTarget(Module *Mod,
StringRef MArch,
StringRef MCPU,
const SmallVectorImpl<std::string>& MAttrs,
std::string *ErrorStr) {
Triple TheTriple(Mod->getTargetTriple());
if (TheTriple.getTriple().empty())
TheTriple.setTriple(sys::getHostTriple());
// Adjust the triple to match what the user requested.
const Target *TheTarget = 0;
if (!MArch.empty()) {
for (TargetRegistry::iterator it = TargetRegistry::begin(),
ie = TargetRegistry::end(); it != ie; ++it) {
if (MArch == it->getName()) {
TheTarget = &*it;
break;
}
}
if (!TheTarget) {
*ErrorStr = "No available targets are compatible with this -march, "
"see -version for the available targets.\n";
return 0;
}
// Adjust the triple to match (if known), otherwise stick with the
// module/host triple.
Triple::ArchType Type = Triple::getArchTypeForLLVMName(MArch);
if (Type != Triple::UnknownArch)
TheTriple.setArch(Type);
} else {
std::string Error;
TheTarget = TargetRegistry::lookupTarget(TheTriple.getTriple(), Error);
if (TheTarget == 0) {
if (ErrorStr)
*ErrorStr = Error;
return 0;
}
}
if (!TheTarget->hasJIT()) {
errs() << "WARNING: This target JIT is not designed for the host you are"
<< " running. If bad things happen, please choose a different "
<< "-march switch.\n";
}
// Package up features to be passed to target/subtarget
std::string FeaturesStr;
if (!MCPU.empty() || !MAttrs.empty()) {
SubtargetFeatures Features;
Features.setCPU(MCPU);
for (unsigned i = 0; i != MAttrs.size(); ++i)
Features.AddFeature(MAttrs[i]);
FeaturesStr = Features.getString();
}
// Allocate a target...
TargetMachine *Target =
TheTarget->createTargetMachine(TheTriple.getTriple(), FeaturesStr);
assert(Target && "Could not allocate target machine!");
return Target;
}
// main - Entry point for the llc compiler.
//
int main(int argc, char **argv) {
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
// Enable debug stream buffering.
EnableDebugBuffering = true;
LLVMContext &Context = getGlobalContext();
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
// Initialize targets first, so that --version shows registered targets.
InitializeAllTargets();
InitializeAllAsmPrinters();
InitializeAllAsmParsers();
cl::ParseCommandLineOptions(argc, argv, "llvm system compiler\n");
// Load the module to be compiled...
SMDiagnostic Err;
std::auto_ptr<Module> M;
M.reset(ParseIRFile(InputFilename, Err, Context));
if (M.get() == 0) {
Err.Print(argv[0], errs());
return 1;
}
Module &mod = *M.get();
// If we are supposed to override the target triple, do so now.
if (!TargetTriple.empty())
mod.setTargetTriple(Triple::normalize(TargetTriple));
Triple TheTriple(mod.getTargetTriple());
if (TheTriple.getTriple().empty())
TheTriple.setTriple(sys::getHostTriple());
// Allocate target machine. First, check whether the user has explicitly
// specified an architecture to compile for. If so we have to look it up by
// name, because it might be a backend that has no mapping to a target triple.
const Target *TheTarget = 0;
if (!MArch.empty()) {
for (TargetRegistry::iterator it = TargetRegistry::begin(),
ie = TargetRegistry::end(); it != ie; ++it) {
if (MArch == it->getName()) {
TheTarget = &*it;
break;
}
}
if (!TheTarget) {
errs() << argv[0] << ": error: invalid target '" << MArch << "'.\n";
return 1;
}
// Adjust the triple to match (if known), otherwise stick with the
// module/host triple.
Triple::ArchType Type = Triple::getArchTypeForLLVMName(MArch);
if (Type != Triple::UnknownArch)
TheTriple.setArch(Type);
} else {
std::string Err;
TheTarget = TargetRegistry::lookupTarget(TheTriple.getTriple(), Err);
if (TheTarget == 0) {
errs() << argv[0] << ": error auto-selecting target for module '"
<< Err << "'. Please use the -march option to explicitly "
<< "pick a target.\n";
return 1;
}
}
// Package up features to be passed to target/subtarget
std::string FeaturesStr;
if (MCPU.size() || MAttrs.size()) {
SubtargetFeatures Features;
Features.setCPU(MCPU);
for (unsigned i = 0; i != MAttrs.size(); ++i)
Features.AddFeature(MAttrs[i]);
FeaturesStr = Features.getString();
}
std::auto_ptr<TargetMachine>
target(TheTarget->createTargetMachine(TheTriple.getTriple(), FeaturesStr));
assert(target.get() && "Could not allocate target machine!");
TargetMachine &Target = *target.get();
if (DisableDotLoc)
Target.setMCUseLoc(false);
if (TheTriple.getOS() == Triple::Darwin) {
switch (TheTriple.getDarwinMajorNumber()) {
case 7:
case 8:
case 9:
// disable .loc support for older darwin OS.
Target.setMCUseLoc(false);
break;
default:
break;
}
}
// Figure out where we are going to send the output...
OwningPtr<tool_output_file> Out
(GetOutputStream(TheTarget->getName(), TheTriple.getOS(), argv[0]));
if (!Out) return 1;
CodeGenOpt::Level OLvl = CodeGenOpt::Default;
switch (OptLevel) {
default:
errs() << argv[0] << ": invalid optimization level.\n";
return 1;
case ' ': break;
case '0': OLvl = CodeGenOpt::None; break;
case '1': OLvl = CodeGenOpt::Less; break;
case '2': OLvl = CodeGenOpt::Default; break;
case '3': OLvl = CodeGenOpt::Aggressive; break;
}
// Build up all of the passes that we want to do to the module.
PassManager PM;
// Add the target data from the target machine, if it exists, or the module.
if (const TargetData *TD = Target.getTargetData())
PM.add(new TargetData(*TD));
else
PM.add(new TargetData(&mod));
// Override default to generate verbose assembly.
Target.setAsmVerbosityDefault(true);
if (RelaxAll) {
if (FileType != TargetMachine::CGFT_ObjectFile)
errs() << argv[0]
<< ": warning: ignoring -mc-relax-all because filetype != obj";
else
Target.setMCRelaxAll(true);
}
{
formatted_raw_ostream FOS(Out->os());
// Ask the target to add backend passes as necessary.
if (Target.addPassesToEmitFile(PM, FOS, FileType, OLvl, NoVerify)) {
errs() << argv[0] << ": target does not support generation of this"
<< " file type!\n";
return 1;
}
// Before executing passes, print the final values of the LLVM options.
cl::PrintOptionValues();
PM.run(mod);
}
// Declare success.
Out->keep();
return 0;
}
// main - Entry point for the llc compiler.
//
int main(int argc, char **argv) {
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
// Enable debug stream buffering.
EnableDebugBuffering = true;
LLVMContext &Context = getGlobalContext();
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
// Initialize targets first, so that --version shows registered targets.
InitializeAllTargets();
InitializeAllAsmPrinters();
cl::ParseCommandLineOptions(argc, argv, "llvm system compiler\n");
// Load the module to be compiled...
SMDiagnostic Err;
std::auto_ptr<Module> M;
M.reset(ParseIRFile(InputFilename, Err, Context));
if (M.get() == 0) {
Err.Print(argv[0], errs());
return 1;
}
Module &mod = *M.get();
// If we are supposed to override the target triple, do so now.
if (!TargetTriple.empty())
mod.setTargetTriple(TargetTriple);
Triple TheTriple(mod.getTargetTriple());
if (TheTriple.getTriple().empty())
TheTriple.setTriple(sys::getHostTriple());
// Allocate target machine. First, check whether the user has explicitly
// specified an architecture to compile for. If so we have to look it up by
// name, because it might be a backend that has no mapping to a target triple.
const Target *TheTarget = 0;
if (!MArch.empty()) {
for (TargetRegistry::iterator it = TargetRegistry::begin(),
ie = TargetRegistry::end(); it != ie; ++it) {
if (MArch == it->getName()) {
TheTarget = &*it;
break;
}
}
if (!TheTarget) {
errs() << argv[0] << ": error: invalid target '" << MArch << "'.\n";
return 1;
}
// Adjust the triple to match (if known), otherwise stick with the
// module/host triple.
Triple::ArchType Type = Triple::getArchTypeForLLVMName(MArch);
if (Type != Triple::UnknownArch)
TheTriple.setArch(Type);
} else {
std::string Err;
TheTarget = TargetRegistry::lookupTarget(TheTriple.getTriple(), Err);
if (TheTarget == 0) {
errs() << argv[0] << ": error auto-selecting target for module '"
<< Err << "'. Please use the -march option to explicitly "
<< "pick a target.\n";
return 1;
}
}
// Package up features to be passed to target/subtarget
std::string FeaturesStr;
if (MCPU.size() || MAttrs.size()) {
SubtargetFeatures Features;
Features.setCPU(MCPU);
for (unsigned i = 0; i != MAttrs.size(); ++i)
Features.AddFeature(MAttrs[i]);
FeaturesStr = Features.getString();
}
std::auto_ptr<TargetMachine>
target(TheTarget->createTargetMachine(TheTriple.getTriple(), FeaturesStr));
assert(target.get() && "Could not allocate target machine!");
TargetMachine &Target = *target.get();
// Figure out where we are going to send the output...
formatted_raw_ostream *Out = GetOutputStream(TheTarget->getName(), argv[0]);
if (Out == 0) return 1;
CodeGenOpt::Level OLvl = CodeGenOpt::Default;
switch (OptLevel) {
default:
errs() << argv[0] << ": invalid optimization level.\n";
return 1;
case ' ': break;
case '0': OLvl = CodeGenOpt::None; break;
case '1': OLvl = CodeGenOpt::Less; break;
case '2': OLvl = CodeGenOpt::Default; break;
case '3': OLvl = CodeGenOpt::Aggressive; break;
}
// Request that addPassesToEmitFile run the Verifier after running
// passes which modify the IR.
#ifndef NDEBUG
bool DisableVerify = false;
#else
bool DisableVerify = true;
#endif
// If this target requires addPassesToEmitWholeFile, do it now. This is
// used by strange things like the C backend.
if (Target.WantsWholeFile()) {
PassManager PM;
// Add the target data from the target machine, if it exists, or the module.
if (const TargetData *TD = Target.getTargetData())
PM.add(new TargetData(*TD));
else
PM.add(new TargetData(&mod));
if (!NoVerify)
PM.add(createVerifierPass());
// Ask the target to add backend passes as necessary.
if (Target.addPassesToEmitWholeFile(PM, *Out, FileType, OLvl,
DisableVerify)) {
errs() << argv[0] << ": target does not support generation of this"
<< " file type!\n";
if (Out != &fouts()) delete Out;
// And the Out file is empty and useless, so remove it now.
sys::Path(OutputFilename).eraseFromDisk();
return 1;
}
PM.run(mod);
} else {
// Build up all of the passes that we want to do to the module.
FunctionPassManager Passes(M.get());
// Add the target data from the target machine, if it exists, or the module.
if (const TargetData *TD = Target.getTargetData())
Passes.add(new TargetData(*TD));
else
Passes.add(new TargetData(&mod));
#ifndef NDEBUG
if (!NoVerify)
Passes.add(createVerifierPass());
#endif
// Override default to generate verbose assembly.
Target.setAsmVerbosityDefault(true);
if (Target.addPassesToEmitFile(Passes, *Out, FileType, OLvl,
DisableVerify)) {
errs() << argv[0] << ": target does not support generation of this"
<< " file type!\n";
if (Out != &fouts()) delete Out;
// And the Out file is empty and useless, so remove it now.
sys::Path(OutputFilename).eraseFromDisk();
return 1;
}
Passes.doInitialization();
// Run our queue of passes all at once now, efficiently.
// TODO: this could lazily stream functions out of the module.
for (Module::iterator I = mod.begin(), E = mod.end(); I != E; ++I)
if (!I->isDeclaration()) {
if (DisableRedZone)
I->addFnAttr(Attribute::NoRedZone);
if (NoImplicitFloats)
I->addFnAttr(Attribute::NoImplicitFloat);
Passes.run(*I);
}
Passes.doFinalization();
}
// Delete the ostream if it's not a stdout stream
if (Out != &fouts()) delete Out;
return 0;
}
// main - Entry point for the llc compiler.
//
int main(int argc, char **argv) {
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
// Enable debug stream buffering.
EnableDebugBuffering = true;
LLVMContext &Context = getGlobalContext();
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
// Initialize targets first, so that --version shows registered targets.
InitializeAllTargets();
InitializeAllTargetMCs();
InitializeAllAsmPrinters();
InitializeAllAsmParsers();
// Register the target printer for --version.
cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
cl::ParseCommandLineOptions(argc, argv, "llvm system compiler\n");
// Load the module to be compiled...
SMDiagnostic Err;
std::auto_ptr<Module> M;
M.reset(ParseIRFile(InputFilename, Err, Context));
if (M.get() == 0) {
Err.print(argv[0], errs());
return 1;
}
Module &mod = *M.get();
// If we are supposed to override the target triple, do so now.
if (!TargetTriple.empty())
mod.setTargetTriple(Triple::normalize(TargetTriple));
Triple TheTriple(mod.getTargetTriple());
if (TheTriple.getTriple().empty())
TheTriple.setTriple(sys::getDefaultTargetTriple());
// Allocate target machine. First, check whether the user has explicitly
// specified an architecture to compile for. If so we have to look it up by
// name, because it might be a backend that has no mapping to a target triple.
const Target *TheTarget = 0;
if (!MArch.empty()) {
for (TargetRegistry::iterator it = TargetRegistry::begin(),
ie = TargetRegistry::end(); it != ie; ++it) {
if (MArch == it->getName()) {
TheTarget = &*it;
break;
}
}
if (!TheTarget) {
errs() << argv[0] << ": error: invalid target '" << MArch << "'.\n";
return 1;
}
// Adjust the triple to match (if known), otherwise stick with the
// module/host triple.
Triple::ArchType Type = Triple::getArchTypeForLLVMName(MArch);
if (Type != Triple::UnknownArch)
TheTriple.setArch(Type);
} else {
std::string Err;
TheTarget = TargetRegistry::lookupTarget(TheTriple.getTriple(), Err);
if (TheTarget == 0) {
errs() << argv[0] << ": error auto-selecting target for module '"
<< Err << "'. Please use the -march option to explicitly "
<< "pick a target.\n";
return 1;
}
}
// Package up features to be passed to target/subtarget
std::string FeaturesStr;
if (MAttrs.size()) {
SubtargetFeatures Features;
for (unsigned i = 0; i != MAttrs.size(); ++i)
Features.AddFeature(MAttrs[i]);
FeaturesStr = Features.getString();
}
CodeGenOpt::Level OLvl = CodeGenOpt::Default;
switch (OptLevel) {
default:
errs() << argv[0] << ": invalid optimization level.\n";
return 1;
case ' ': break;
case '0': OLvl = CodeGenOpt::None; break;
case '1': OLvl = CodeGenOpt::Less; break;
case '2': OLvl = CodeGenOpt::Default; break;
case '3': OLvl = CodeGenOpt::Aggressive; break;
}
TargetOptions Options;
Options.LessPreciseFPMADOption = EnableFPMAD;
Options.PrintMachineCode = PrintCode;
Options.NoFramePointerElim = DisableFPElim;
Options.NoFramePointerElimNonLeaf = DisableFPElimNonLeaf;
Options.NoExcessFPPrecision = DisableExcessPrecision;
Options.UnsafeFPMath = EnableUnsafeFPMath;
Options.NoInfsFPMath = EnableNoInfsFPMath;
Options.NoNaNsFPMath = EnableNoNaNsFPMath;
Options.HonorSignDependentRoundingFPMathOption =
EnableHonorSignDependentRoundingFPMath;
Options.UseSoftFloat = GenerateSoftFloatCalls;
if (FloatABIForCalls != FloatABI::Default)
Options.FloatABIType = FloatABIForCalls;
Options.NoZerosInBSS = DontPlaceZerosInBSS;
Options.JITExceptionHandling = EnableJITExceptionHandling;
Options.JITEmitDebugInfo = EmitJitDebugInfo;
Options.JITEmitDebugInfoToDisk = EmitJitDebugInfoToDisk;
Options.GuaranteedTailCallOpt = EnableGuaranteedTailCallOpt;
Options.DisableTailCalls = DisableTailCalls;
Options.StackAlignmentOverride = OverrideStackAlignment;
Options.RealignStack = EnableRealignStack;
Options.DisableJumpTables = DisableSwitchTables;
Options.TrapFuncName = TrapFuncName;
Options.EnableSegmentedStacks = SegmentedStacks;
std::auto_ptr<TargetMachine>
target(TheTarget->createTargetMachine(TheTriple.getTriple(),
MCPU, FeaturesStr, Options,
RelocModel, CMModel, OLvl));
assert(target.get() && "Could not allocate target machine!");
TargetMachine &Target = *target.get();
if (DisableDotLoc)
Target.setMCUseLoc(false);
if (DisableCFI)
Target.setMCUseCFI(false);
if (EnableDwarfDirectory)
Target.setMCUseDwarfDirectory(true);
if (GenerateSoftFloatCalls)
FloatABIForCalls = FloatABI::Soft;
// Disable .loc support for older OS X versions.
if (TheTriple.isMacOSX() &&
TheTriple.isMacOSXVersionLT(10, 6))
Target.setMCUseLoc(false);
// Figure out where we are going to send the output...
OwningPtr<tool_output_file> Out
(GetOutputStream(TheTarget->getName(), TheTriple.getOS(), argv[0]));
if (!Out) return 1;
// Build up all of the passes that we want to do to the module.
PassManager PM;
// Add the target data from the target machine, if it exists, or the module.
if (const TargetData *TD = Target.getTargetData())
PM.add(new TargetData(*TD));
else
PM.add(new TargetData(&mod));
// Override default to generate verbose assembly.
Target.setAsmVerbosityDefault(true);
if (RelaxAll) {
if (FileType != TargetMachine::CGFT_ObjectFile)
errs() << argv[0]
<< ": warning: ignoring -mc-relax-all because filetype != obj";
else
Target.setMCRelaxAll(true);
}
{
formatted_raw_ostream FOS(Out->os());
// Ask the target to add backend passes as necessary.
if (Target.addPassesToEmitFile(PM, FOS, FileType, NoVerify)) {
errs() << argv[0] << ": target does not support generation of this"
<< " file type!\n";
return 1;
}
// Before executing passes, print the final values of the LLVM options.
cl::PrintOptionValues();
PM.run(mod);
}
// Declare success.
Out->keep();
return 0;
}
int main(int argc, char **argv) {
std::vector<StringRef> Components;
bool PrintLibs = false, PrintLibNames = false, PrintLibFiles = false;
bool HasAnyOption = false;
// llvm-config is designed to support being run both from a development tree
// and from an installed path. We try and auto-detect which case we are in so
// that we can report the correct information when run from a development
// tree.
bool IsInDevelopmentTree, DevelopmentTreeLayoutIsCMakeStyle;
llvm::SmallString<256> CurrentPath(GetExecutablePath(argv[0]).str());
std::string CurrentExecPrefix;
std::string ActiveObjRoot;
// Create an absolute path, and pop up one directory (we expect to be inside a
// bin dir).
sys::fs::make_absolute(CurrentPath);
CurrentExecPrefix = sys::path::parent_path(
sys::path::parent_path(CurrentPath)).str();
// Check to see if we are inside a development tree by comparing to possible
// locations (prefix style or CMake style). This could be wrong in the face of
// symbolic links, but is good enough.
if (CurrentExecPrefix == std::string(LLVM_OBJ_ROOT) + "/" + LLVM_BUILDMODE) {
IsInDevelopmentTree = true;
DevelopmentTreeLayoutIsCMakeStyle = false;
// If we are in a development tree, then check if we are in a BuildTools
// directory. This indicates we are built for the build triple, but we
// always want to provide information for the host triple.
if (sys::path::filename(LLVM_OBJ_ROOT) == "BuildTools") {
ActiveObjRoot = sys::path::parent_path(LLVM_OBJ_ROOT);
} else {
ActiveObjRoot = LLVM_OBJ_ROOT;
}
} else if (CurrentExecPrefix == std::string(LLVM_OBJ_ROOT) + "/bin") {
IsInDevelopmentTree = true;
DevelopmentTreeLayoutIsCMakeStyle = true;
ActiveObjRoot = LLVM_OBJ_ROOT;
} else {
IsInDevelopmentTree = false;
}
// Compute various directory locations based on the derived location
// information.
std::string ActivePrefix, ActiveBinDir, ActiveIncludeDir, ActiveLibDir;
std::string ActiveIncludeOption;
if (IsInDevelopmentTree) {
ActivePrefix = CurrentExecPrefix;
// CMake organizes the products differently than a normal prefix style
// layout.
if (DevelopmentTreeLayoutIsCMakeStyle) {
ActiveIncludeDir = ActiveObjRoot + "/include";
ActiveBinDir = ActiveObjRoot + "/bin/" + LLVM_BUILDMODE;
ActiveLibDir = ActiveObjRoot + "/lib/" + LLVM_BUILDMODE;
} else {
ActiveIncludeDir = ActiveObjRoot + "/include";
ActiveBinDir = ActiveObjRoot + "/" + LLVM_BUILDMODE + "/bin";
ActiveLibDir = ActiveObjRoot + "/" + LLVM_BUILDMODE + "/lib";
}
// We need to include files from both the source and object trees.
ActiveIncludeOption = ("-I" + ActiveIncludeDir + " " +
"-I" + ActiveObjRoot + "/include");
} else {
ActivePrefix = CurrentExecPrefix;
ActiveIncludeDir = ActivePrefix + "/include";
ActiveBinDir = ActivePrefix + "/bin";
ActiveLibDir = ActivePrefix + "/lib";
ActiveIncludeOption = "-I" + ActiveIncludeDir;
}
raw_ostream &OS = outs();
for (int i = 1; i != argc; ++i) {
StringRef Arg = argv[i];
if (Arg.startswith("-")) {
HasAnyOption = true;
if (Arg == "--version") {
OS << PACKAGE_VERSION << '\n';
} else if (Arg == "--prefix") {
OS << ActivePrefix << '\n';
} else if (Arg == "--bindir") {
OS << ActiveBinDir << '\n';
} else if (Arg == "--includedir") {
OS << ActiveIncludeDir << '\n';
} else if (Arg == "--libdir") {
OS << ActiveLibDir << '\n';
} else if (Arg == "--cppflags") {
OS << ActiveIncludeOption << ' ' << LLVM_CPPFLAGS << '\n';
} else if (Arg == "--cflags") {
OS << ActiveIncludeOption << ' ' << LLVM_CFLAGS << '\n';
} else if (Arg == "--cxxflags") {
OS << ActiveIncludeOption << ' ' << LLVM_CXXFLAGS << '\n';
} else if (Arg == "--ldflags") {
OS << "-L" << ActiveLibDir << ' ' << LLVM_LDFLAGS
<< ' ' << LLVM_SYSTEM_LIBS << '\n';
} else if (Arg == "--libs") {
PrintLibs = true;
} else if (Arg == "--libnames") {
PrintLibNames = true;
} else if (Arg == "--libfiles") {
PrintLibFiles = true;
} else if (Arg == "--components") {
for (unsigned j = 0; j != array_lengthof(AvailableComponents); ++j) {
OS << ' ';
OS << AvailableComponents[j].Name;
}
OS << '\n';
} else if (Arg == "--targets-built") {
bool First = true;
for (TargetRegistry::iterator I = TargetRegistry::begin(),
E = TargetRegistry::end(); I != E; First = false, ++I) {
if (!First)
OS << ' ';
OS << I->getName();
}
OS << '\n';
} else if (Arg == "--host-target") {
OS << LLVM_DEFAULT_TARGET_TRIPLE << '\n';
} else if (Arg == "--build-mode") {
OS << LLVM_BUILDMODE << '\n';
} else if (Arg == "--obj-root") {
OS << LLVM_OBJ_ROOT << '\n';
} else if (Arg == "--src-root") {
OS << LLVM_SRC_ROOT << '\n';
} else {
usage();
}
} else {
Components.push_back(Arg);
}
}
if (!HasAnyOption)
usage();
if (PrintLibs || PrintLibNames || PrintLibFiles) {
// Construct the list of all the required libraries.
std::vector<StringRef> RequiredLibs;
ComputeLibsForComponents(Components, RequiredLibs);
for (unsigned i = 0, e = RequiredLibs.size(); i != e; ++i) {
StringRef Lib = RequiredLibs[i];
if (i)
OS << ' ';
if (PrintLibNames) {
OS << Lib;
} else if (PrintLibFiles) {
OS << ActiveLibDir << '/' << Lib;
} else if (PrintLibs) {
// If this is a typical library name, include it using -l.
if (Lib.startswith("lib") && Lib.endswith(".a")) {
OS << "-l" << Lib.slice(3, Lib.size()-2);
continue;
}
// Otherwise, print the full path.
OS << ActiveLibDir << '/' << Lib;
}
}
OS << '\n';
} else if (!Components.empty()) {
errs() << "llvm-config: error: components given, but unused\n\n";
usage();
}
return 0;
}
