Coverage Report

Created: 2020-02-15 09:57

/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/tools/clang-fuzzer/handle-cxx/handle_cxx.cpp
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//==-- handle_cxx.cpp - Helper function for Clang fuzzers ------------------==//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Implements HandleCXX for use by the Clang fuzzers.
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//
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//===----------------------------------------------------------------------===//
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#include "handle_cxx.h"
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#include "clang/CodeGen/CodeGenAction.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Lex/PreprocessorOptions.h"
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#include "clang/Tooling/Tooling.h"
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#include "llvm/Option/Option.h"
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using namespace clang;
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void clang_fuzzer::HandleCXX(const std::string &S,
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                             const char *FileName,
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                             const std::vector<const char *> &ExtraArgs) {
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  llvm::opt::ArgStringList CC1Args;
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  CC1Args.push_back("-cc1");
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  for (auto &A : ExtraArgs)
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    CC1Args.push_back(A);
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  CC1Args.push_back(FileName);
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  llvm::IntrusiveRefCntPtr<FileManager> Files(
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      new FileManager(FileSystemOptions()));
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  IgnoringDiagConsumer Diags;
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  IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
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  DiagnosticsEngine Diagnostics(
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      IntrusiveRefCntPtr<clang::DiagnosticIDs>(new DiagnosticIDs()), &*DiagOpts,
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      &Diags, false);
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  std::unique_ptr<clang::CompilerInvocation> Invocation(
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      tooling::newInvocation(&Diagnostics, CC1Args));
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  std::unique_ptr<llvm::MemoryBuffer> Input =
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      llvm::MemoryBuffer::getMemBuffer(S);
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  Invocation->getPreprocessorOpts().addRemappedFile(FileName,
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                                                    Input.release());
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  std::unique_ptr<tooling::ToolAction> action(
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      tooling::newFrontendActionFactory<clang::EmitObjAction>());
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  std::shared_ptr<PCHContainerOperations> PCHContainerOps =
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      std::make_shared<PCHContainerOperations>();
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  action->runInvocation(std::move(Invocation), Files.get(), PCHContainerOps,
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                        &Diags);
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}
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