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The original `ExecuteCommand()` called `system()` from the C library. The C library implementation of this on macOS contains a mutex which serializes calls to `system()`. This prevented the `-jobs=` flag from running copies of the fuzzing binary in parallel which is the opposite of what is intended. To fix this on macOS an alternative implementation of `ExecuteCommand()` is provided that can be used concurrently. This is provided in `FuzzerUtilDarwin.cpp` which is guarded to only compile code on Apple platforms. The existing implementation has been moved to a new file `FuzzerUtilLinux.cpp` which is guarded to only compile code on Linux. This commit includes a simple test to check that LibFuzzer is being executed in parallel when requested. Differential Revision: https://reviews.llvm.org/D22742 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278544 91177308-0d34-0410-b5e6-96231b3b80d8 |
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| bindings | ||
| cmake | ||
| docs | ||
| examples | ||
| include | ||
| lib | ||
| projects | ||
| resources | ||
| runtimes | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| .arcconfig | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| configure | ||
| CREDITS.TXT | ||
| LICENSE.TXT | ||
| llvm.spec.in | ||
| LLVMBuild.txt | ||
| README.txt | ||
| RELEASE_TESTERS.TXT | ||
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. Please see the documentation provided in docs/ for further assistance with LLVM, and in particular docs/GettingStarted.rst for getting started with LLVM and docs/README.txt for an overview of LLVM's documentation setup. If you are writing a package for LLVM, see docs/Packaging.rst for our suggestions.