| /* |
| * Copyright 2014, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "clang/Basic/DiagnosticOptions.h" |
| #include "clang/Driver/DriverDiagnostic.h" |
| #include "clang/Driver/Options.h" |
| #include "clang/Frontend/Utils.h" |
| |
| #include "llvm/Option/Arg.h" |
| #include "llvm/Option/ArgList.h" |
| #include "llvm/Option/Option.h" |
| #include "llvm/Option/OptTable.h" |
| #include "llvm/Support/CommandLine.h" |
| |
| #include "rs_cc_options.h" |
| #include "slang.h" |
| #include "slang_assert.h" |
| |
| #include <cstdlib> |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| enum { |
| OPT_INVALID = 0, // This is not an option ID. |
| #define PREFIX(NAME, VALUE) |
| #define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ |
| HELPTEXT, METAVAR) \ |
| OPT_##ID, |
| #include "RSCCOptions.inc" |
| LastOption |
| #undef OPTION |
| #undef PREFIX |
| }; |
| |
| #define PREFIX(NAME, VALUE) const char *const NAME[] = VALUE; |
| #define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ |
| HELPTEXT, METAVAR) |
| #include "RSCCOptions.inc" |
| #undef OPTION |
| #undef PREFIX |
| |
| static const llvm::opt::OptTable::Info RSCCInfoTable[] = { |
| #define PREFIX(NAME, VALUE) |
| #define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ |
| HELPTEXT, METAVAR) \ |
| { \ |
| PREFIX, NAME, HELPTEXT, METAVAR, OPT_##ID, llvm::opt::Option::KIND##Class, \ |
| PARAM, FLAGS, OPT_##GROUP, OPT_##ALIAS, ALIASARGS \ |
| } \ |
| , |
| #include "RSCCOptions.inc" |
| #undef OPTION |
| #undef PREFIX |
| }; |
| |
| namespace { |
| |
| class RSCCOptTable : public llvm::opt::OptTable { |
| public: |
| RSCCOptTable() |
| : OptTable(RSCCInfoTable, |
| sizeof(RSCCInfoTable) / sizeof(RSCCInfoTable[0])) {} |
| }; |
| } |
| |
| namespace slang { |
| |
| llvm::opt::OptTable *createRSCCOptTable() { return new RSCCOptTable(); } |
| |
| // This function is similar to |
| // clang/lib/Frontend/CompilerInvocation::CreateFromArgs. |
| bool ParseArguments(const llvm::ArrayRef<const char *> &ArgsIn, |
| llvm::SmallVectorImpl<const char *> &Inputs, |
| RSCCOptions &Opts, clang::DiagnosticOptions &DiagOpts, |
| llvm::cl::StringSaver &StringSaver) { |
| // We use a different diagnostic engine for argument parsing from the rest of |
| // the work. This mimics what's done in clang. I believe it is so the |
| // argument parsing errors are well formatted while the full errors can be |
| // influenced by command line arguments. |
| llvm::IntrusiveRefCntPtr<clang::DiagnosticOptions> ArgumentParseDiagOpts( |
| new clang::DiagnosticOptions()); |
| llvm::IntrusiveRefCntPtr<clang::DiagnosticIDs> DiagIDs( |
| new clang::DiagnosticIDs()); |
| DiagnosticBuffer DiagsBuffer; |
| clang::DiagnosticsEngine DiagEngine(DiagIDs, &*ArgumentParseDiagOpts, |
| &DiagsBuffer, false); |
| |
| // Populate a vector with the command line arguments, expanding command files |
| // that have been included via the '@' argument. |
| llvm::SmallVector<const char *, 256> ArgVector; |
| ArgVector.append(ArgsIn.begin(), ArgsIn.end()); |
| llvm::cl::ExpandResponseFiles(StringSaver, llvm::cl::TokenizeGNUCommandLine, |
| ArgVector, false); |
| |
| std::unique_ptr<llvm::opt::OptTable> OptParser(createRSCCOptTable()); |
| unsigned MissingArgIndex = 0; |
| unsigned MissingArgCount = 0; |
| std::unique_ptr<llvm::opt::InputArgList> Args( |
| OptParser->ParseArgs(ArgVector.begin() + 1, ArgVector.end(), |
| MissingArgIndex, MissingArgCount)); |
| |
| // Check for missing argument error. |
| if (MissingArgCount) { |
| DiagEngine.Report(clang::diag::err_drv_missing_argument) |
| << Args->getArgString(MissingArgIndex) << MissingArgCount; |
| } |
| |
| // Issue errors on unknown arguments. |
| for (llvm::opt::arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), |
| ie = Args->filtered_end(); |
| it != ie; ++it) { |
| DiagEngine.Report(clang::diag::err_drv_unknown_argument) |
| << (*it)->getAsString(*Args); |
| } |
| |
| DiagOpts.IgnoreWarnings = Args->hasArg(OPT_w); |
| DiagOpts.Warnings = Args->getAllArgValues(OPT_W); |
| |
| for (llvm::opt::ArgList::const_iterator it = Args->begin(), ie = Args->end(); |
| it != ie; ++it) { |
| const llvm::opt::Arg *A = *it; |
| if (A->getOption().getKind() == llvm::opt::Option::InputClass) |
| Inputs.push_back(A->getValue()); |
| } |
| |
| Opts.mIncludePaths = Args->getAllArgValues(OPT_I); |
| |
| Opts.mBitcodeOutputDir = Args->getLastArgValue(OPT_o); |
| |
| if (const llvm::opt::Arg *A = Args->getLastArg(OPT_M_Group)) { |
| switch (A->getOption().getID()) { |
| case OPT_M: { |
| Opts.mEmitDependency = true; |
| Opts.mOutputType = Slang::OT_Dependency; |
| break; |
| } |
| case OPT_MD: { |
| Opts.mEmitDependency = true; |
| Opts.mOutputType = Slang::OT_Bitcode; |
| break; |
| } |
| case OPT_MP: { |
| Opts.mEmitDependency = true; |
| Opts.mOutputType = Slang::OT_Bitcode; |
| Opts.mEmitPhonyDependency = true; |
| break; |
| } |
| default: { slangAssert(false && "Invalid option in M group!"); } |
| } |
| } |
| |
| if (const llvm::opt::Arg *A = Args->getLastArg(OPT_Output_Type_Group)) { |
| switch (A->getOption().getID()) { |
| case OPT_emit_asm: { |
| Opts.mOutputType = Slang::OT_Assembly; |
| break; |
| } |
| case OPT_emit_llvm: { |
| Opts.mOutputType = Slang::OT_LLVMAssembly; |
| break; |
| } |
| case OPT_emit_bc: { |
| Opts.mOutputType = Slang::OT_Bitcode; |
| break; |
| } |
| case OPT_emit_nothing: { |
| Opts.mOutputType = Slang::OT_Nothing; |
| break; |
| } |
| default: { slangAssert(false && "Invalid option in output type group!"); } |
| } |
| } |
| |
| if (Opts.mEmitDependency && ((Opts.mOutputType != Slang::OT_Bitcode) && |
| (Opts.mOutputType != Slang::OT_Dependency))) |
| DiagEngine.Report(clang::diag::err_drv_argument_not_allowed_with) |
| << Args->getLastArg(OPT_M_Group)->getAsString(*Args) |
| << Args->getLastArg(OPT_Output_Type_Group)->getAsString(*Args); |
| |
| Opts.mAllowRSPrefix = Args->hasArg(OPT_allow_rs_prefix); |
| |
| Opts.mJavaReflectionPathBase = |
| Args->getLastArgValue(OPT_java_reflection_path_base); |
| Opts.mJavaReflectionPackageName = |
| Args->getLastArgValue(OPT_java_reflection_package_name); |
| |
| Opts.mRSPackageName = Args->getLastArgValue(OPT_rs_package_name); |
| |
| llvm::StringRef BitcodeStorageValue = |
| Args->getLastArgValue(OPT_bitcode_storage); |
| if (BitcodeStorageValue == "ar") |
| Opts.mBitcodeStorage = BCST_APK_RESOURCE; |
| else if (BitcodeStorageValue == "jc") |
| Opts.mBitcodeStorage = BCST_JAVA_CODE; |
| else if (!BitcodeStorageValue.empty()) |
| DiagEngine.Report(clang::diag::err_drv_invalid_value) |
| << OptParser->getOptionName(OPT_bitcode_storage) << BitcodeStorageValue; |
| |
| llvm::opt::Arg *lastBitwidthArg = Args->getLastArg(OPT_m32, OPT_m64); |
| if (Args->hasArg(OPT_reflect_cpp)) { |
| Opts.mBitcodeStorage = BCST_CPP_CODE; |
| // mJavaReflectionPathBase can be set for C++ reflected builds. |
| // Set it to the standard mBitcodeOutputDir (via -o) by default. |
| if (Opts.mJavaReflectionPathBase.empty()) { |
| Opts.mJavaReflectionPathBase = Opts.mBitcodeOutputDir; |
| } |
| |
| // Check for bitwidth arguments. |
| if (lastBitwidthArg) { |
| if (lastBitwidthArg->getOption().matches(OPT_m32)) { |
| Opts.mBitWidth = 32; |
| } else { |
| Opts.mBitWidth = 64; |
| } |
| } |
| } else if (lastBitwidthArg) { |
| // -m32/-m64 are forbidden for non-C++ reflection paths for non-eng builds |
| // (they would make it too easy for a developer to accidentally create and |
| // release an APK that has 32-bit or 64-bit bitcode but not both). |
| #ifdef __ENABLE_INTERNAL_OPTIONS |
| if (lastBitwidthArg->getOption().matches(OPT_m32)) { |
| Opts.mBitWidth = 32; |
| } else { |
| Opts.mBitWidth = 64; |
| } |
| Opts.mEmit3264 = false; |
| #else |
| DiagEngine.Report( |
| DiagEngine.getCustomDiagID(clang::DiagnosticsEngine::Error, |
| "cannot use -m32/-m64 without specifying " |
| "C++ reflection (-reflect-c++)")); |
| #endif |
| } |
| |
| Opts.mDependencyOutputDir = |
| Args->getLastArgValue(OPT_output_dep_dir, Opts.mBitcodeOutputDir); |
| Opts.mAdditionalDepTargets = Args->getAllArgValues(OPT_additional_dep_target); |
| |
| Opts.mShowHelp = Args->hasArg(OPT_help); |
| Opts.mShowVersion = Args->hasArg(OPT_version); |
| Opts.mDebugEmission = Args->hasArg(OPT_emit_g); |
| Opts.mVerbose = Args->hasArg(OPT_verbose); |
| Opts.mASTPrint = Args->hasArg(OPT_ast_print); |
| |
| // Delegate options |
| |
| std::vector<std::string> DelegatedStrings; |
| for (int Opt : std::vector<unsigned>{OPT_debug, OPT_print_after_all, OPT_print_before_all}) { |
| if (Args->hasArg(Opt)) { |
| // TODO: Don't assume that the option begins with "-"; determine this programmatically instead. |
| DelegatedStrings.push_back(std::string("-") + std::string(OptParser->getOptionName(Opt))); |
| slangAssert(OptParser->getOptionKind(Opt) == llvm::opt::Option::FlagClass); |
| } |
| } |
| if (DelegatedStrings.size()) { |
| std::vector<const char *> DelegatedCStrs; |
| DelegatedCStrs.push_back(*ArgVector.data()); // program name |
| std::for_each(DelegatedStrings.cbegin(), DelegatedStrings.cend(), |
| [&DelegatedCStrs](const std::string &String) { DelegatedCStrs.push_back(String.c_str()); }); |
| llvm::cl::ParseCommandLineOptions(DelegatedCStrs.size(), DelegatedCStrs.data()); |
| } |
| |
| // If we are emitting both 32-bit and 64-bit bitcode, we must embed it. |
| |
| size_t OptLevel = |
| clang::getLastArgIntValue(*Args, OPT_optimization_level, 3, DiagEngine); |
| |
| Opts.mOptimizationLevel = |
| OptLevel == 0 ? llvm::CodeGenOpt::None : llvm::CodeGenOpt::Aggressive; |
| |
| Opts.mTargetAPI = |
| clang::getLastArgIntValue(*Args, OPT_target_api, RS_VERSION, DiagEngine); |
| |
| if (Opts.mTargetAPI == 0) { |
| Opts.mTargetAPI = UINT_MAX; |
| } |
| |
| if ((Opts.mTargetAPI < 21) || (Opts.mBitcodeStorage == BCST_CPP_CODE)) |
| Opts.mEmit3264 = false; |
| if (Opts.mEmit3264) |
| Opts.mBitcodeStorage = BCST_JAVA_CODE; |
| |
| if (DiagEngine.hasErrorOccurred()) { |
| llvm::errs() << DiagsBuffer.str(); |
| return false; |
| } |
| |
| return true; |
| } |
| } |