From e7ea32e30a9f628855c4ddc7533ebd5d2013dc40 Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Thu, 22 Feb 2024 20:11:51 +0000 Subject: [PATCH] msan: Add SECP256K1_CHECKMEM_MSAN_DEFINE which applies to memory sanitizer and not valgrind --- src/checkmem.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/checkmem.h b/src/checkmem.h index f2169dec..7e333ce5 100644 --- a/src/checkmem.h +++ b/src/checkmem.h @@ -30,6 +30,8 @@ * - SECP256K1_CHECKMEM_DEFINE(p, len): * - marks the len-byte memory pointed to by p as defined data (public data, in the * context of constant-time checking). + * - SECP256K1_CHECKMEM_MSAN_DEFINE(p, len): + * - Like SECP256K1_CHECKMEM_DEFINE, but applies only to memory_sanitizer. * */ @@ -48,11 +50,16 @@ # define SECP256K1_CHECKMEM_ENABLED 1 # define SECP256K1_CHECKMEM_UNDEFINE(p, len) __msan_allocated_memory((p), (len)) # define SECP256K1_CHECKMEM_DEFINE(p, len) __msan_unpoison((p), (len)) +# define SECP256K1_CHECKMEM_MSAN_DEFINE(p, len) __msan_unpoison((p), (len)) # define SECP256K1_CHECKMEM_CHECK(p, len) __msan_check_mem_is_initialized((p), (len)) # define SECP256K1_CHECKMEM_RUNNING() (1) # endif #endif +#if !defined SECP256K1_CHECKMEM_MSAN_DEFINE +# define SECP256K1_CHECKMEM_MSAN_DEFINE(p, len) SECP256K1_CHECKMEM_NOOP((p), (len)) +#endif + /* If valgrind integration is desired (through the VALGRIND define), implement the * SECP256K1_CHECKMEM_* macros using valgrind. */ #if !defined SECP256K1_CHECKMEM_ENABLED