摘录


AddressSanitizer (ASAN) was developed at Google to be a fast memory error detector. ASAN is capable of finding use-after-free and heap, stack, and global buffer overflow bugs within C and C++ programs. AddressSanitizer was merged into LLVM 3.1 earlier this year and running an ASAN-enabled program leads to only about a 2x slowdown for developers wishing to easily spot these memory errors within their programs. The GCC port of ASAN is currently supported on IA-32, x86-64, and x32 architectures under Linux. 

ThreadSanitizer (TSAN) is another newer Google project for detecting data race within C/C++ programs. ThreadSanitizier is based upon the popular Valgrind program and is similar to Helgrind. The slowdown of running a ThreadSanitizier-enabled LLVM program is around 5~15x slower and also requires a run-time library aside from a supported compiler. Within LLVM, ThreadSanitizer is much more primitive and in an alpha state compared to ASAN.

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asked 10 Nov '15, 14:54

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