| 1 | //==-- handle_cxx.cpp - Helper function for Clang fuzzers ------------------==// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // Implements HandleCXX for use by the Clang fuzzers. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | #include "handle_cxx.h" |
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| 14 | |
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| 15 | #include "clang/CodeGen/CodeGenAction.h" |
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| 16 | #include "clang/Frontend/CompilerInstance.h" |
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| 17 | #include "clang/Lex/PreprocessorOptions.h" |
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| 18 | #include "clang/Tooling/Tooling.h" |
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| 19 | #include "llvm/Option/Option.h" |
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| 20 | |
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| 21 | using namespace clang; |
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| 22 | |
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| 23 | void clang_fuzzer::HandleCXX(const std::string &S, |
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| 24 | const char *FileName, |
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| 25 | const std::vector<const char *> &) { |
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| 26 | llvm::opt::ArgStringList CC1Args; |
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| 27 | CC1Args.push_back(Elt: "-cc1" ); |
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| 28 | for (auto &A : ExtraArgs) |
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| 29 | CC1Args.push_back(Elt: A); |
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| 30 | CC1Args.push_back(Elt: FileName); |
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| 31 | |
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| 32 | llvm::IntrusiveRefCntPtr<FileManager> Files( |
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| 33 | new FileManager(FileSystemOptions())); |
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| 34 | IgnoringDiagConsumer Diags; |
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| 35 | IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions(); |
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| 36 | DiagnosticsEngine Diagnostics( |
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| 37 | IntrusiveRefCntPtr<clang::DiagnosticIDs>(new DiagnosticIDs()), &*DiagOpts, |
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| 38 | &Diags, false); |
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| 39 | std::unique_ptr<clang::CompilerInvocation> Invocation( |
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| 40 | tooling::newInvocation(Diagnostics: &Diagnostics, CC1Args, /*BinaryName=*/nullptr)); |
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| 41 | std::unique_ptr<llvm::MemoryBuffer> Input = |
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| 42 | llvm::MemoryBuffer::getMemBuffer(InputData: S); |
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| 43 | Invocation->getPreprocessorOpts().addRemappedFile(From: FileName, |
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| 44 | To: Input.release()); |
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| 45 | std::unique_ptr<tooling::ToolAction> action( |
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| 46 | tooling::newFrontendActionFactory<clang::EmitObjAction>()); |
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| 47 | std::shared_ptr<PCHContainerOperations> PCHContainerOps = |
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| 48 | std::make_shared<PCHContainerOperations>(); |
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| 49 | action->runInvocation(Invocation: std::move(Invocation), Files: Files.get(), PCHContainerOps, |
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| 50 | DiagConsumer: &Diags); |
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| 51 | } |
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| 52 | |
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| 53 | |
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