| //===-lto.cpp - LLVM Link Time Optimizer ----------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements the Link Time Optimization library. This library is |
| // intended to be used by linker to optimize code at link time. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm-c/lto.h" |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/ADT/StringExtras.h" |
| #include "llvm/Bitcode/BitcodeReader.h" |
| #include "llvm/CodeGen/CommandFlags.h" |
| #include "llvm/IR/DiagnosticInfo.h" |
| #include "llvm/IR/DiagnosticPrinter.h" |
| #include "llvm/IR/LLVMContext.h" |
| #include "llvm/LTO/LTO.h" |
| #include "llvm/LTO/legacy/LTOCodeGenerator.h" |
| #include "llvm/LTO/legacy/LTOModule.h" |
| #include "llvm/LTO/legacy/ThinLTOCodeGenerator.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| #include "llvm/Support/Signals.h" |
| #include "llvm/Support/TargetSelect.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| using namespace llvm; |
| |
| static codegen::RegisterCodeGenFlags CGF; |
| |
| // extra command-line flags needed for LTOCodeGenerator |
| static cl::opt<char> |
| OptLevel("O", |
| cl::desc("Optimization level. [-O0, -O1, -O2, or -O3] " |
| "(default = '-O2')"), |
| cl::Prefix, cl::init('2')); |
| |
| static cl::opt<bool> EnableFreestanding( |
| "lto-freestanding", cl::init(false), |
| cl::desc("Enable Freestanding (disable builtins / TLI) during LTO")); |
| |
| #ifdef NDEBUG |
| static bool VerifyByDefault = false; |
| #else |
| static bool VerifyByDefault = true; |
| #endif |
| |
| static cl::opt<bool> DisableVerify( |
| "disable-llvm-verifier", cl::init(!VerifyByDefault), |
| cl::desc("Don't run the LLVM verifier during the optimization pipeline")); |
| |
| // Holds most recent error string. |
| // *** Not thread safe *** |
| static std::string sLastErrorString; |
| |
| // Holds the initialization state of the LTO module. |
| // *** Not thread safe *** |
| static bool initialized = false; |
| |
| // Represent the state of parsing command line debug options. |
| static enum class OptParsingState { |
| NotParsed, // Initial state. |
| Early, // After lto_set_debug_options is called. |
| Done // After maybeParseOptions is called. |
| } optionParsingState = OptParsingState::NotParsed; |
| |
| static LLVMContext *LTOContext = nullptr; |
| |
| struct LTOToolDiagnosticHandler : public DiagnosticHandler { |
| bool handleDiagnostics(const DiagnosticInfo &DI) override { |
| if (DI.getSeverity() != DS_Error) { |
| DiagnosticPrinterRawOStream DP(errs()); |
| DI.print(DP); |
| errs() << '\n'; |
| return true; |
| } |
| sLastErrorString = ""; |
| { |
| raw_string_ostream Stream(sLastErrorString); |
| DiagnosticPrinterRawOStream DP(Stream); |
| DI.print(DP); |
| } |
| return true; |
| } |
| }; |
| |
| // Initialize the configured targets if they have not been initialized. |
| static void lto_initialize() { |
| if (!initialized) { |
| #ifdef _WIN32 |
| // Dialog box on crash disabling doesn't work across DLL boundaries, so do |
| // it here. |
| llvm::sys::DisableSystemDialogsOnCrash(); |
| #endif |
| |
| InitializeAllTargetInfos(); |
| InitializeAllTargets(); |
| InitializeAllTargetMCs(); |
| InitializeAllAsmParsers(); |
| InitializeAllAsmPrinters(); |
| InitializeAllDisassemblers(); |
| |
| static LLVMContext Context; |
| LTOContext = &Context; |
| LTOContext->setDiagnosticHandler( |
| std::make_unique<LTOToolDiagnosticHandler>(), true); |
| initialized = true; |
| } |
| } |
| |
| namespace { |
| |
| static void handleLibLTODiagnostic(lto_codegen_diagnostic_severity_t Severity, |
| const char *Msg, void *) { |
| sLastErrorString = Msg; |
| } |
| |
| // This derived class owns the native object file. This helps implement the |
| // libLTO API semantics, which require that the code generator owns the object |
| // file. |
| struct LibLTOCodeGenerator : LTOCodeGenerator { |
| LibLTOCodeGenerator() : LTOCodeGenerator(*LTOContext) { init(); } |
| LibLTOCodeGenerator(std::unique_ptr<LLVMContext> Context) |
| : LTOCodeGenerator(*Context), OwnedContext(std::move(Context)) { |
| init(); |
| } |
| |
| // Reset the module first in case MergedModule is created in OwnedContext. |
| // Module must be destructed before its context gets destructed. |
| ~LibLTOCodeGenerator() { resetMergedModule(); } |
| |
| void init() { setDiagnosticHandler(handleLibLTODiagnostic, nullptr); } |
| |
| std::unique_ptr<MemoryBuffer> NativeObjectFile; |
| std::unique_ptr<LLVMContext> OwnedContext; |
| }; |
| |
| } |
| |
| DEFINE_SIMPLE_CONVERSION_FUNCTIONS(LibLTOCodeGenerator, lto_code_gen_t) |
| DEFINE_SIMPLE_CONVERSION_FUNCTIONS(ThinLTOCodeGenerator, thinlto_code_gen_t) |
| DEFINE_SIMPLE_CONVERSION_FUNCTIONS(LTOModule, lto_module_t) |
| |
| // Convert the subtarget features into a string to pass to LTOCodeGenerator. |
| static void lto_add_attrs(lto_code_gen_t cg) { |
| LTOCodeGenerator *CG = unwrap(cg); |
| CG->setAttrs(codegen::getMAttrs()); |
| |
| if (OptLevel < '0' || OptLevel > '3') |
| report_fatal_error("Optimization level must be between 0 and 3"); |
| CG->setOptLevel(OptLevel - '0'); |
| CG->setFreestanding(EnableFreestanding); |
| CG->setDisableVerify(DisableVerify); |
| } |
| |
| extern const char* lto_get_version() { |
| return LTOCodeGenerator::getVersionString(); |
| } |
| |
| const char* lto_get_error_message() { |
| return sLastErrorString.c_str(); |
| } |
| |
| bool lto_module_is_object_file(const char* path) { |
| return LTOModule::isBitcodeFile(StringRef(path)); |
| } |
| |
| bool lto_module_is_object_file_for_target(const char* path, |
| const char* target_triplet_prefix) { |
| ErrorOr<std::unique_ptr<MemoryBuffer>> Buffer = MemoryBuffer::getFile(path); |
| if (!Buffer) |
| return false; |
| return LTOModule::isBitcodeForTarget(Buffer->get(), |
| StringRef(target_triplet_prefix)); |
| } |
| |
| bool lto_module_has_objc_category(const void *mem, size_t length) { |
| std::unique_ptr<MemoryBuffer> Buffer(LTOModule::makeBuffer(mem, length)); |
| if (!Buffer) |
| return false; |
| LLVMContext Ctx; |
| ErrorOr<bool> Result = expectedToErrorOrAndEmitErrors( |
| Ctx, llvm::isBitcodeContainingObjCCategory(*Buffer)); |
| return Result && *Result; |
| } |
| |
| bool lto_module_is_object_file_in_memory(const void* mem, size_t length) { |
| return LTOModule::isBitcodeFile(mem, length); |
| } |
| |
| bool |
| lto_module_is_object_file_in_memory_for_target(const void* mem, |
| size_t length, |
| const char* target_triplet_prefix) { |
| std::unique_ptr<MemoryBuffer> buffer(LTOModule::makeBuffer(mem, length)); |
| if (!buffer) |
| return false; |
| return LTOModule::isBitcodeForTarget(buffer.get(), |
| StringRef(target_triplet_prefix)); |
| } |
| |
| lto_module_t lto_module_create(const char* path) { |
| lto_initialize(); |
| llvm::TargetOptions Options = |
| codegen::InitTargetOptionsFromCodeGenFlags(Triple()); |
| ErrorOr<std::unique_ptr<LTOModule>> M = |
| LTOModule::createFromFile(*LTOContext, StringRef(path), Options); |
| if (!M) |
| return nullptr; |
| return wrap(M->release()); |
| } |
| |
| lto_module_t lto_module_create_from_fd(int fd, const char *path, size_t size) { |
| lto_initialize(); |
| llvm::TargetOptions Options = |
| codegen::InitTargetOptionsFromCodeGenFlags(Triple()); |
| ErrorOr<std::unique_ptr<LTOModule>> M = LTOModule::createFromOpenFile( |
| *LTOContext, fd, StringRef(path), size, Options); |
| if (!M) |
| return nullptr; |
| return wrap(M->release()); |
| } |
| |
| lto_module_t lto_module_create_from_fd_at_offset(int fd, const char *path, |
| size_t file_size, |
| size_t map_size, |
| off_t offset) { |
| lto_initialize(); |
| llvm::TargetOptions Options = |
| codegen::InitTargetOptionsFromCodeGenFlags(Triple()); |
| ErrorOr<std::unique_ptr<LTOModule>> M = LTOModule::createFromOpenFileSlice( |
| *LTOContext, fd, StringRef(path), map_size, offset, Options); |
| if (!M) |
| return nullptr; |
| return wrap(M->release()); |
| } |
| |
| lto_module_t lto_module_create_from_memory(const void* mem, size_t length) { |
| lto_initialize(); |
| llvm::TargetOptions Options = |
| codegen::InitTargetOptionsFromCodeGenFlags(Triple()); |
| ErrorOr<std::unique_ptr<LTOModule>> M = |
| LTOModule::createFromBuffer(*LTOContext, mem, length, Options); |
| if (!M) |
| return nullptr; |
| return wrap(M->release()); |
| } |
| |
| lto_module_t lto_module_create_from_memory_with_path(const void* mem, |
| size_t length, |
| const char *path) { |
| lto_initialize(); |
| llvm::TargetOptions Options = |
| codegen::InitTargetOptionsFromCodeGenFlags(Triple()); |
| ErrorOr<std::unique_ptr<LTOModule>> M = LTOModule::createFromBuffer( |
| *LTOContext, mem, length, Options, StringRef(path)); |
| if (!M) |
| return nullptr; |
| return wrap(M->release()); |
| } |
| |
| lto_module_t lto_module_create_in_local_context(const void *mem, size_t length, |
| const char *path) { |
| lto_initialize(); |
| llvm::TargetOptions Options = |
| codegen::InitTargetOptionsFromCodeGenFlags(Triple()); |
| |
| // Create a local context. Ownership will be transferred to LTOModule. |
| std::unique_ptr<LLVMContext> Context = std::make_unique<LLVMContext>(); |
| Context->setDiagnosticHandler(std::make_unique<LTOToolDiagnosticHandler>(), |
| true); |
| |
| ErrorOr<std::unique_ptr<LTOModule>> M = LTOModule::createInLocalContext( |
| std::move(Context), mem, length, Options, StringRef(path)); |
| if (!M) |
| return nullptr; |
| return wrap(M->release()); |
| } |
| |
| lto_module_t lto_module_create_in_codegen_context(const void *mem, |
| size_t length, |
| const char *path, |
| lto_code_gen_t cg) { |
| lto_initialize(); |
| llvm::TargetOptions Options = |
| codegen::InitTargetOptionsFromCodeGenFlags(Triple()); |
| ErrorOr<std::unique_ptr<LTOModule>> M = LTOModule::createFromBuffer( |
| unwrap(cg)->getContext(), mem, length, Options, StringRef(path)); |
| if (!M) |
| return nullptr; |
| return wrap(M->release()); |
| } |
| |
| void lto_module_dispose(lto_module_t mod) { delete unwrap(mod); } |
| |
| const char* lto_module_get_target_triple(lto_module_t mod) { |
| return unwrap(mod)->getTargetTriple().c_str(); |
| } |
| |
| void lto_module_set_target_triple(lto_module_t mod, const char *triple) { |
| return unwrap(mod)->setTargetTriple(StringRef(triple)); |
| } |
| |
| unsigned int lto_module_get_num_symbols(lto_module_t mod) { |
| return unwrap(mod)->getSymbolCount(); |
| } |
| |
| const char* lto_module_get_symbol_name(lto_module_t mod, unsigned int index) { |
| return unwrap(mod)->getSymbolName(index).data(); |
| } |
| |
| lto_symbol_attributes lto_module_get_symbol_attribute(lto_module_t mod, |
| unsigned int index) { |
| return unwrap(mod)->getSymbolAttributes(index); |
| } |
| |
| const char* lto_module_get_linkeropts(lto_module_t mod) { |
| return unwrap(mod)->getLinkerOpts().data(); |
| } |
| |
| lto_bool_t lto_module_get_macho_cputype(lto_module_t mod, |
| unsigned int *out_cputype, |
| unsigned int *out_cpusubtype) { |
| LTOModule *M = unwrap(mod); |
| Expected<uint32_t> CPUType = M->getMachOCPUType(); |
| if (!CPUType) { |
| sLastErrorString = toString(CPUType.takeError()); |
| return true; |
| } |
| *out_cputype = *CPUType; |
| |
| Expected<uint32_t> CPUSubType = M->getMachOCPUSubType(); |
| if (!CPUSubType) { |
| sLastErrorString = toString(CPUSubType.takeError()); |
| return true; |
| } |
| *out_cpusubtype = *CPUSubType; |
| |
| return false; |
| } |
| |
| void lto_codegen_set_diagnostic_handler(lto_code_gen_t cg, |
| lto_diagnostic_handler_t diag_handler, |
| void *ctxt) { |
| unwrap(cg)->setDiagnosticHandler(diag_handler, ctxt); |
| } |
| |
| static lto_code_gen_t createCodeGen(bool InLocalContext) { |
| lto_initialize(); |
| |
| TargetOptions Options = codegen::InitTargetOptionsFromCodeGenFlags(Triple()); |
| |
| LibLTOCodeGenerator *CodeGen = |
| InLocalContext ? new LibLTOCodeGenerator(std::make_unique<LLVMContext>()) |
| : new LibLTOCodeGenerator(); |
| CodeGen->setTargetOptions(Options); |
| return wrap(CodeGen); |
| } |
| |
| lto_code_gen_t lto_codegen_create(void) { |
| return createCodeGen(/* InLocalContext */ false); |
| } |
| |
| lto_code_gen_t lto_codegen_create_in_local_context(void) { |
| return createCodeGen(/* InLocalContext */ true); |
| } |
| |
| void lto_codegen_dispose(lto_code_gen_t cg) { delete unwrap(cg); } |
| |
| bool lto_codegen_add_module(lto_code_gen_t cg, lto_module_t mod) { |
| return !unwrap(cg)->addModule(unwrap(mod)); |
| } |
| |
| void lto_codegen_set_module(lto_code_gen_t cg, lto_module_t mod) { |
| unwrap(cg)->setModule(std::unique_ptr<LTOModule>(unwrap(mod))); |
| } |
| |
| bool lto_codegen_set_debug_model(lto_code_gen_t cg, lto_debug_model debug) { |
| unwrap(cg)->setDebugInfo(debug); |
| return false; |
| } |
| |
| bool lto_codegen_set_pic_model(lto_code_gen_t cg, lto_codegen_model model) { |
| switch (model) { |
| case LTO_CODEGEN_PIC_MODEL_STATIC: |
| unwrap(cg)->setCodePICModel(Reloc::Static); |
| return false; |
| case LTO_CODEGEN_PIC_MODEL_DYNAMIC: |
| unwrap(cg)->setCodePICModel(Reloc::PIC_); |
| return false; |
| case LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC: |
| unwrap(cg)->setCodePICModel(Reloc::DynamicNoPIC); |
| return false; |
| case LTO_CODEGEN_PIC_MODEL_DEFAULT: |
| unwrap(cg)->setCodePICModel(std::nullopt); |
| return false; |
| } |
| sLastErrorString = "Unknown PIC model"; |
| return true; |
| } |
| |
| void lto_codegen_set_cpu(lto_code_gen_t cg, const char *cpu) { |
| return unwrap(cg)->setCpu(cpu); |
| } |
| |
| void lto_codegen_set_assembler_path(lto_code_gen_t cg, const char *path) { |
| // In here only for backwards compatibility. We use MC now. |
| } |
| |
| void lto_codegen_set_assembler_args(lto_code_gen_t cg, const char **args, |
| int nargs) { |
| // In here only for backwards compatibility. We use MC now. |
| } |
| |
| void lto_codegen_add_must_preserve_symbol(lto_code_gen_t cg, |
| const char *symbol) { |
| unwrap(cg)->addMustPreserveSymbol(symbol); |
| } |
| |
| static void maybeParseOptions(lto_code_gen_t cg) { |
| if (optionParsingState != OptParsingState::Done) { |
| // Parse options if any were set by the lto_codegen_debug_options* function. |
| unwrap(cg)->parseCodeGenDebugOptions(); |
| lto_add_attrs(cg); |
| optionParsingState = OptParsingState::Done; |
| } |
| } |
| |
| bool lto_codegen_write_merged_modules(lto_code_gen_t cg, const char *path) { |
| maybeParseOptions(cg); |
| return !unwrap(cg)->writeMergedModules(path); |
| } |
| |
| const void *lto_codegen_compile(lto_code_gen_t cg, size_t *length) { |
| maybeParseOptions(cg); |
| LibLTOCodeGenerator *CG = unwrap(cg); |
| CG->NativeObjectFile = CG->compile(); |
| if (!CG->NativeObjectFile) |
| return nullptr; |
| *length = CG->NativeObjectFile->getBufferSize(); |
| return CG->NativeObjectFile->getBufferStart(); |
| } |
| |
| bool lto_codegen_optimize(lto_code_gen_t cg) { |
| maybeParseOptions(cg); |
| return !unwrap(cg)->optimize(); |
| } |
| |
| const void *lto_codegen_compile_optimized(lto_code_gen_t cg, size_t *length) { |
| maybeParseOptions(cg); |
| LibLTOCodeGenerator *CG = unwrap(cg); |
| CG->NativeObjectFile = CG->compileOptimized(); |
| if (!CG->NativeObjectFile) |
| return nullptr; |
| *length = CG->NativeObjectFile->getBufferSize(); |
| return CG->NativeObjectFile->getBufferStart(); |
| } |
| |
| bool lto_codegen_compile_to_file(lto_code_gen_t cg, const char **name) { |
| maybeParseOptions(cg); |
| return !unwrap(cg)->compile_to_file(name); |
| } |
| |
| void lto_set_debug_options(const char *const *options, int number) { |
| assert(optionParsingState == OptParsingState::NotParsed && |
| "option processing already happened"); |
| // Need to put each suboption in a null-terminated string before passing to |
| // parseCommandLineOptions(). |
| std::vector<std::string> Options; |
| for (int i = 0; i < number; ++i) |
| Options.push_back(options[i]); |
| |
| llvm::parseCommandLineOptions(Options); |
| optionParsingState = OptParsingState::Early; |
| } |
| |
| void lto_codegen_debug_options(lto_code_gen_t cg, const char *opt) { |
| assert(optionParsingState != OptParsingState::Early && |
| "early option processing already happened"); |
| SmallVector<StringRef, 4> Options; |
| for (std::pair<StringRef, StringRef> o = getToken(opt); !o.first.empty(); |
| o = getToken(o.second)) |
| Options.push_back(o.first); |
| |
| unwrap(cg)->setCodeGenDebugOptions(Options); |
| } |
| |
| void lto_codegen_debug_options_array(lto_code_gen_t cg, |
| const char *const *options, int number) { |
| assert(optionParsingState != OptParsingState::Early && |
| "early option processing already happened"); |
| SmallVector<StringRef, 4> Options; |
| for (int i = 0; i < number; ++i) |
| Options.push_back(options[i]); |
| unwrap(cg)->setCodeGenDebugOptions(ArrayRef(Options)); |
| } |
| |
| unsigned int lto_api_version() { return LTO_API_VERSION; } |
| |
| void lto_codegen_set_should_internalize(lto_code_gen_t cg, |
| bool ShouldInternalize) { |
| unwrap(cg)->setShouldInternalize(ShouldInternalize); |
| } |
| |
| void lto_codegen_set_should_embed_uselists(lto_code_gen_t cg, |
| lto_bool_t ShouldEmbedUselists) { |
| unwrap(cg)->setShouldEmbedUselists(ShouldEmbedUselists); |
| } |
| |
| lto_bool_t lto_module_has_ctor_dtor(lto_module_t mod) { |
| return unwrap(mod)->hasCtorDtor(); |
| } |
| |
| // ThinLTO API below |
| |
| thinlto_code_gen_t thinlto_create_codegen(void) { |
| lto_initialize(); |
| ThinLTOCodeGenerator *CodeGen = new ThinLTOCodeGenerator(); |
| CodeGen->setTargetOptions( |
| codegen::InitTargetOptionsFromCodeGenFlags(Triple())); |
| CodeGen->setFreestanding(EnableFreestanding); |
| |
| if (OptLevel.getNumOccurrences()) { |
| if (OptLevel < '0' || OptLevel > '3') |
| report_fatal_error("Optimization level must be between 0 and 3"); |
| CodeGen->setOptLevel(OptLevel - '0'); |
| std::optional<CodeGenOpt::Level> CGOptLevelOrNone = |
| CodeGenOpt::getLevel(OptLevel - '0'); |
| assert(CGOptLevelOrNone); |
| CodeGen->setCodeGenOptLevel(*CGOptLevelOrNone); |
| } |
| return wrap(CodeGen); |
| } |
| |
| void thinlto_codegen_dispose(thinlto_code_gen_t cg) { delete unwrap(cg); } |
| |
| void thinlto_codegen_add_module(thinlto_code_gen_t cg, const char *Identifier, |
| const char *Data, int Length) { |
| unwrap(cg)->addModule(Identifier, StringRef(Data, Length)); |
| } |
| |
| void thinlto_codegen_process(thinlto_code_gen_t cg) { unwrap(cg)->run(); } |
| |
| unsigned int thinlto_module_get_num_objects(thinlto_code_gen_t cg) { |
| return unwrap(cg)->getProducedBinaries().size(); |
| } |
| LTOObjectBuffer thinlto_module_get_object(thinlto_code_gen_t cg, |
| unsigned int index) { |
| assert(index < unwrap(cg)->getProducedBinaries().size() && "Index overflow"); |
| auto &MemBuffer = unwrap(cg)->getProducedBinaries()[index]; |
| return LTOObjectBuffer{MemBuffer->getBufferStart(), |
| MemBuffer->getBufferSize()}; |
| } |
| |
| unsigned int thinlto_module_get_num_object_files(thinlto_code_gen_t cg) { |
| return unwrap(cg)->getProducedBinaryFiles().size(); |
| } |
| const char *thinlto_module_get_object_file(thinlto_code_gen_t cg, |
| unsigned int index) { |
| assert(index < unwrap(cg)->getProducedBinaryFiles().size() && |
| "Index overflow"); |
| return unwrap(cg)->getProducedBinaryFiles()[index].c_str(); |
| } |
| |
| void thinlto_codegen_disable_codegen(thinlto_code_gen_t cg, |
| lto_bool_t disable) { |
| unwrap(cg)->disableCodeGen(disable); |
| } |
| |
| void thinlto_codegen_set_codegen_only(thinlto_code_gen_t cg, |
| lto_bool_t CodeGenOnly) { |
| unwrap(cg)->setCodeGenOnly(CodeGenOnly); |
| } |
| |
| void thinlto_debug_options(const char *const *options, int number) { |
| // if options were requested, set them |
| if (number && options) { |
| std::vector<const char *> CodegenArgv(1, "libLTO"); |
| append_range(CodegenArgv, ArrayRef<const char *>(options, number)); |
| cl::ParseCommandLineOptions(CodegenArgv.size(), CodegenArgv.data()); |
| } |
| } |
| |
| lto_bool_t lto_module_is_thinlto(lto_module_t mod) { |
| return unwrap(mod)->isThinLTO(); |
| } |
| |
| void thinlto_codegen_add_must_preserve_symbol(thinlto_code_gen_t cg, |
| const char *Name, int Length) { |
| unwrap(cg)->preserveSymbol(StringRef(Name, Length)); |
| } |
| |
| void thinlto_codegen_add_cross_referenced_symbol(thinlto_code_gen_t cg, |
| const char *Name, int Length) { |
| unwrap(cg)->crossReferenceSymbol(StringRef(Name, Length)); |
| } |
| |
| void thinlto_codegen_set_cpu(thinlto_code_gen_t cg, const char *cpu) { |
| return unwrap(cg)->setCpu(cpu); |
| } |
| |
| void thinlto_codegen_set_cache_dir(thinlto_code_gen_t cg, |
| const char *cache_dir) { |
| return unwrap(cg)->setCacheDir(cache_dir); |
| } |
| |
| void thinlto_codegen_set_cache_pruning_interval(thinlto_code_gen_t cg, |
| int interval) { |
| return unwrap(cg)->setCachePruningInterval(interval); |
| } |
| |
| void thinlto_codegen_set_cache_entry_expiration(thinlto_code_gen_t cg, |
| unsigned expiration) { |
| return unwrap(cg)->setCacheEntryExpiration(expiration); |
| } |
| |
| void thinlto_codegen_set_final_cache_size_relative_to_available_space( |
| thinlto_code_gen_t cg, unsigned Percentage) { |
| return unwrap(cg)->setMaxCacheSizeRelativeToAvailableSpace(Percentage); |
| } |
| |
| void thinlto_codegen_set_cache_size_bytes( |
| thinlto_code_gen_t cg, unsigned MaxSizeBytes) { |
| return unwrap(cg)->setCacheMaxSizeBytes(MaxSizeBytes); |
| } |
| |
| void thinlto_codegen_set_cache_size_megabytes( |
| thinlto_code_gen_t cg, unsigned MaxSizeMegabytes) { |
| uint64_t MaxSizeBytes = MaxSizeMegabytes; |
| MaxSizeBytes *= 1024 * 1024; |
| return unwrap(cg)->setCacheMaxSizeBytes(MaxSizeBytes); |
| } |
| |
| void thinlto_codegen_set_cache_size_files( |
| thinlto_code_gen_t cg, unsigned MaxSizeFiles) { |
| return unwrap(cg)->setCacheMaxSizeFiles(MaxSizeFiles); |
| } |
| |
| void thinlto_codegen_set_savetemps_dir(thinlto_code_gen_t cg, |
| const char *save_temps_dir) { |
| return unwrap(cg)->setSaveTempsDir(save_temps_dir); |
| } |
| |
| void thinlto_set_generated_objects_dir(thinlto_code_gen_t cg, |
| const char *save_temps_dir) { |
| unwrap(cg)->setGeneratedObjectsDirectory(save_temps_dir); |
| } |
| |
| lto_bool_t thinlto_codegen_set_pic_model(thinlto_code_gen_t cg, |
| lto_codegen_model model) { |
| switch (model) { |
| case LTO_CODEGEN_PIC_MODEL_STATIC: |
| unwrap(cg)->setCodePICModel(Reloc::Static); |
| return false; |
| case LTO_CODEGEN_PIC_MODEL_DYNAMIC: |
| unwrap(cg)->setCodePICModel(Reloc::PIC_); |
| return false; |
| case LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC: |
| unwrap(cg)->setCodePICModel(Reloc::DynamicNoPIC); |
| return false; |
| case LTO_CODEGEN_PIC_MODEL_DEFAULT: |
| unwrap(cg)->setCodePICModel(std::nullopt); |
| return false; |
| } |
| sLastErrorString = "Unknown PIC model"; |
| return true; |
| } |
| |
| DEFINE_SIMPLE_CONVERSION_FUNCTIONS(lto::InputFile, lto_input_t) |
| |
| lto_input_t lto_input_create(const void *buffer, size_t buffer_size, const char *path) { |
| return wrap(LTOModule::createInputFile(buffer, buffer_size, path, sLastErrorString)); |
| } |
| |
| void lto_input_dispose(lto_input_t input) { |
| delete unwrap(input); |
| } |
| |
| extern unsigned lto_input_get_num_dependent_libraries(lto_input_t input) { |
| return LTOModule::getDependentLibraryCount(unwrap(input)); |
| } |
| |
| extern const char *lto_input_get_dependent_library(lto_input_t input, |
| size_t index, |
| size_t *size) { |
| return LTOModule::getDependentLibrary(unwrap(input), index, size); |
| } |
| |
| extern const char *const *lto_runtime_lib_symbols_list(size_t *size) { |
| auto symbols = lto::LTO::getRuntimeLibcallSymbols(); |
| *size = symbols.size(); |
| return symbols.data(); |
| } |