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C/C++ Debug

detect memory leaks

macOS

lldb leaks export MallocStackLogging=1

Sanitizer

Mac自带的clang中没有包含Sanitizer, 需要安装llvmbrew install llvm

AddressSanitizer(ASan): 内存地址越界检查（其实包括了内存泄漏检查）

• LeakSanitizer(LSan): 内存泄漏检查，可以单独使用

  export ASAN_OPTIONS=detect_leaks=1

• ThreadSanitizer (TSan): 线程安全检查
• UndefinedBehaviorSanitizer (UBSsan): 未定义行为检查

• MemorySanitizer (MSan): 内存分配检查

  in cmake -DCMAKE_BUILD_TYPE=ASAN -DCMAKE_CXX_COMPILER=/usr/local/opt/llvm/bin/clang++ set(CMAKE_CXX_FLAGS “${CMAKE_CXX_FLAGS} -fsanitize=[sanitizer_name] [additional_options] [-g] [-OX]”)

Reference

Mac下C++内存检查指北(Valgrind VS Asan)
Memory check on macOS 12 Monterey?
Diagnosing Memory, Thread, and Crash Issues Early
google/sanitizers
Memory error checking in C and C++: Comparing Sanitizers and Valgrind

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