[compiler-rt] [llvm] [msan] Add interceptors for fortified memory functions (__memcpy_chk, etc.) (PR #206702)

[Austin Schuh via llvm-commits]

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@@ -181,6 +181,10 @@ SANITIZER_WEAK_IMPORT void *aligned_alloc(__sanitizer::usize __alignment,
 #define SANITIZER_INTERCEPT_MEMSET 1
 #define SANITIZER_INTERCEPT_MEMMOVE 1
 #define SANITIZER_INTERCEPT_MEMCPY 1
+#define SANITIZER_INTERCEPT___MEMCPY_CHK SI_GLIBC
+#define SANITIZER_INTERCEPT___MEMMOVE_CHK SI_GLIBC
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AustinSchuh wrote:

I expanded it somewhat.  Hopefully that list is decently correct. I don't have an easy way to test beyond glibc Linux and OSX.

https://github.com/llvm/llvm-project/pull/206702