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msan: Add SECP256K1_CHECKMEM_MSAN_DEFINE which applies to memory sanitizer and not valgrind

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Cory Fields
2024-02-22 20:11:51 +00:00
parent 0653a25d50
commit e7ea32e30a
1 changed files with 7 additions and 0 deletions
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7
src/checkmem.h
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@@ -30,6 +30,8 @@
* - SECP256K1_CHECKMEM_DEFINE(p, len): * - SECP256K1_CHECKMEM_DEFINE(p, len):
* - marks the len-byte memory pointed to by p as defined data (public data, in the * - marks the len-byte memory pointed to by p as defined data (public data, in the
* context of constant-time checking). * 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_ENABLED 1
# define SECP256K1_CHECKMEM_UNDEFINE(p, len) __msan_allocated_memory((p), (len)) # define SECP256K1_CHECKMEM_UNDEFINE(p, len) __msan_allocated_memory((p), (len))
# define SECP256K1_CHECKMEM_DEFINE(p, len) __msan_unpoison((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_CHECK(p, len) __msan_check_mem_is_initialized((p), (len))
# define SECP256K1_CHECKMEM_RUNNING() (1) # define SECP256K1_CHECKMEM_RUNNING() (1)
# endif # endif
#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 /* If valgrind integration is desired (through the VALGRIND define), implement the
* SECP256K1_CHECKMEM_* macros using valgrind. */ * SECP256K1_CHECKMEM_* macros using valgrind. */
#if !defined SECP256K1_CHECKMEM_ENABLED #if !defined SECP256K1_CHECKMEM_ENABLED