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do more processing in clang-fuzzer (use EmitAssemblyAction) 

Summary: use EmitAssemblyAction in clang-fuzzer

Reviewers: klimek, rsmith

Reviewed By: klimek

Subscribers: cfe-commits, mgorny

Differential Revision: https://reviews.llvm.org/D34267

llvm-svn: 308045
This commit is contained in:
Kostya Serebryany 2017-07-14 18:42:07 +00:00
parent 11cafc82b7
commit 8328133dd2
2 changed files with 11 additions and 3 deletions
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3
clang/tools/clang-fuzzer/CMakeLists.txt
View File

@ -1,5 +1,5 @@
if( LLVM_USE_SANITIZE_COVERAGE )
set(LLVM_LINK_COMPONENTS support)
set(LLVM_LINK_COMPONENTS ${LLVM_TARGETS_TO_BUILD})
add_clang_executable(clang-fuzzer
EXCLUDE_FROM_ALL
@ -10,6 +10,7 @@ if( LLVM_USE_SANITIZE_COVERAGE )
${CLANG_FORMAT_LIB_DEPS}
clangAST
clangBasic
clangCodeGen
clangDriver
clangFrontend
clangRewriteFrontend

11
clang/tools/clang-fuzzer/ClangFuzzer.cpp
View File

@ -14,18 +14,25 @@
//===----------------------------------------------------------------------===//
#include "clang/Tooling/Tooling.h"
#include "clang/Frontend/FrontendActions.h"
#include "clang/CodeGen/CodeGenAction.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Lex/PreprocessorOptions.h"
#include "llvm/Option/Option.h"
#include "llvm/Support/TargetSelect.h"
using namespace clang;
extern "C" int LLVMFuzzerTestOneInput(uint8_t *data, size_t size) {
std::string s((const char *)data, size);
llvm::InitializeAllTargets();
llvm::InitializeAllTargetMCs();
llvm::InitializeAllAsmPrinters();
llvm::InitializeAllAsmParsers();
llvm::opt::ArgStringList CC1Args;
CC1Args.push_back("-cc1");
CC1Args.push_back("./test.cc");
CC1Args.push_back("-O2");
llvm::IntrusiveRefCntPtr<FileManager> Files(
new FileManager(FileSystemOptions()));
IgnoringDiagConsumer Diags;
@ -39,7 +46,7 @@ extern "C" int LLVMFuzzerTestOneInput(uint8_t *data, size_t size) {
llvm::MemoryBuffer::getMemBuffer(s);
Invocation->getPreprocessorOpts().addRemappedFile("./test.cc", Input.release());
std::unique_ptr<tooling::ToolAction> action(
tooling::newFrontendActionFactory<clang::SyntaxOnlyAction>());
tooling::newFrontendActionFactory<clang::EmitObjAction>());
std::shared_ptr<PCHContainerOperations> PCHContainerOps =
std::make_shared<PCHContainerOperations>();
action->runInvocation(std::move(Invocation), Files.get(), PCHContainerOps,