48 lines
1.9 KiB
C++
48 lines
1.9 KiB
C++
//===-- ClangFuzzer.cpp - Fuzz Clang --------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief This file implements a function that runs Clang on a single
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/// input. This function is then linked into the Fuzzer library.
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///
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//===----------------------------------------------------------------------===//
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#include "clang/Tooling/Tooling.h"
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#include "clang/Frontend/FrontendActions.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "llvm/Option/Option.h"
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using namespace clang;
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extern "C" int LLVMFuzzerTestOneInput(uint8_t *data, size_t size) {
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std::string s((const char *)data, size);
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llvm::opt::ArgStringList CC1Args;
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CC1Args.push_back("-cc1");
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CC1Args.push_back("./test.cc");
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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("./test.cc", Input.release());
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std::unique_ptr<tooling::ToolAction> action(
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tooling::newFrontendActionFactory<clang::SyntaxOnlyAction>());
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std::shared_ptr<PCHContainerOperations> PCHContainerOps =
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std::make_shared<PCHContainerOperations>();
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action->runInvocation(Invocation.release(), Files.get(), PCHContainerOps,
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&Diags);
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return 0;
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}
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