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-rw-r--r--include/my_valgrind.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/my_valgrind.h b/include/my_valgrind.h
index c585e3c489a..5ba288cedc3 100644
--- a/include/my_valgrind.h
+++ b/include/my_valgrind.h
@@ -35,6 +35,8 @@
# define MEM_CHECK_DEFINED(a,len) VALGRIND_CHECK_MEM_IS_DEFINED(a,len)
#elif defined(__SANITIZE_ADDRESS__)
# include <sanitizer/asan_interface.h>
+/* How to do manual poisoning:
+https://github.com/google/sanitizers/wiki/AddressSanitizerManualPoisoning */
# define MEM_UNDEFINED(a,len) ASAN_UNPOISON_MEMORY_REGION(a,len)
# define MEM_NOACCESS(a,len) ASAN_POISON_MEMORY_REGION(a,len)
# define MEM_CHECK_ADDRESSABLE(a,len) ((void) 0)