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