Coverage Report

Created: 2023-11-11 10:31

/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/tools/clang-fuzzer/handle-cxx/handle_cxx.cpp
Line
Count
Source (jump to first uncovered line)
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 char *FileName,
25
0
                             const std::vector<const char *> &ExtraArgs) {
26
0
  llvm::opt::ArgStringList CC1Args;
27
0
  CC1Args.push_back("-cc1");
28
0
  for (auto &A : ExtraArgs)
29
0
    CC1Args.push_back(A);
30
0
  CC1Args.push_back(FileName);
31
32
0
  llvm::IntrusiveRefCntPtr<FileManager> Files(
33
0
      new FileManager(FileSystemOptions()));
34
0
  IgnoringDiagConsumer Diags;
35
0
  IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
36
0
  DiagnosticsEngine Diagnostics(
37
0
      IntrusiveRefCntPtr<clang::DiagnosticIDs>(new DiagnosticIDs()), &*DiagOpts,
38
0
      &Diags, false);
39
0
  std::unique_ptr<clang::CompilerInvocation> Invocation(
40
0
      tooling::newInvocation(&Diagnostics, CC1Args, /*BinaryName=*/nullptr));
41
0
  std::unique_ptr<llvm::MemoryBuffer> Input =
42
0
      llvm::MemoryBuffer::getMemBuffer(S);
43
0
  Invocation->getPreprocessorOpts().addRemappedFile(FileName,
44
0
                                                    Input.release());
45
0
  std::unique_ptr<tooling::ToolAction> action(
46
0
      tooling::newFrontendActionFactory<clang::EmitObjAction>());
47
0
  std::shared_ptr<PCHContainerOperations> PCHContainerOps =
48
0
      std::make_shared<PCHContainerOperations>();
49
0
  action->runInvocation(std::move(Invocation), Files.get(), PCHContainerOps,
50
0
                        &Diags);
51
0
}
52