dding to handful of sanitizers

Author: devnexen

compiler-rt/lib/msan/msan_interceptors.cpp

@@ -62,6 +62,9 @@ DECLARE_REAL(SIZE_T, strlen, const char *s)
 DECLARE_REAL(SIZE_T, strnlen, const char *s, SIZE_T maxlen)
 DECLARE_REAL(void *, memcpy, void *dest, const void *src, SIZE_T n)
 DECLARE_REAL(void *, memset, void *dest, int c, SIZE_T n)
+#if SANITIZER_MEMSET_EXPLICIT
+DECLARE_REAL(void *, memset_explicit, void *dest, int c, SIZE_T n)
+#endif
 
 // True if this is a nested interceptor.
 static THREADLOCAL int in_interceptor_scope;

compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp

@@ -42,6 +42,9 @@ using namespace __tsan;
 
 DECLARE_REAL(void *, memcpy, void *to, const void *from, SIZE_T size)
 DECLARE_REAL(void *, memset, void *block, int c, SIZE_T size)
+#if SANITIZER_MEMSET_EXPLICIT
+DECLARE_REAL(void *, memset_explicit, void *block, int c, SIZE_T size)
+#endif
 
 #if SANITIZER_FREEBSD || SANITIZER_APPLE
 #define stdout __stdoutp

compiler-rt/test/sanitizer_common/TestCases/Linux/memset_explicit.c

@@ -1,5 +1,5 @@
 // RUN: %clang -std=c23 -O0 %s -o %t && %run %t
-// UNSUPPORTED: asan, hwasan, ubsan
+// UNSUPPORTED: asan, lsan, hwasan, ubsan
 
 #include <stddef.h>
 #include <stdlib.h>