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================ Comment at: clang/docs/ClangCommandLineReference.rst:2139 -Enable stack protectors for some functions vulnerable to stack smashing. This uses a loose heuristic which considers functions vulnerable if they contain a char (or 8bit integer) array or constant sized calls to alloca, which are of greater size than ssp-buffer-size (default: 8 bytes). All variable sized calls to alloca are considered vulnerable +Enable stack protectors for some functions vulnerable to stack smashing. This uses a loose heuristic which considers functions vulnerable if they contain a char (or 8bit integer) array or constant sized calls to alloca, which are of greater size than ssp-buffer-size (default: 8 bytes). All variable sized calls to alloca are considered vulnerable. A function with a stack protector has a guard value added to the stack frame that is checked on function exit. The guard value must be positioned in the stack frame such that a buffer overflow from a vulnerable variable will overwrite to the guard value before overwriting the function's return address. The reference stack guard value is stored in a global variable. ---------------- probinson wrote: > "overwrite to the guard variable" -> "overwrite the guard variable" Thanks, now updated CHANGES SINCE LAST ACTION https://reviews.llvm.org/D85239/new/ https://reviews.llvm.org/D85239 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
