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Add support for msan integration to checkmem.h

This commit is contained in:
Pieter Wuille 2022-12-06 18:38:32 -05:00
parent 8dc64079eb
commit 8e11f89a68
1 changed files with 14 additions and 0 deletions
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14
src/checkmem.h
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@ -39,6 +39,20 @@
/* Define a statement-like macro that ignores the arguments. */ /* Define a statement-like macro that ignores the arguments. */
#define SECP256K1_CHECKMEM_NOOP(p, len) do { (void)(p); (void)(len); } while(0) #define SECP256K1_CHECKMEM_NOOP(p, len) do { (void)(p); (void)(len); } while(0)
/* If compiling under msan, map the SECP256K1_CHECKMEM_* functionality to msan.
* Choose this preferentially, even when VALGRIND is defined, as msan-compiled
* binaries can't be run under valgrind anyway. */
#if defined(__has_feature)
# if __has_feature(memory_sanitizer)
# include <sanitizer/msan_interface.h>
# 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_CHECK(p, len) __msan_check_mem_is_initialized((p), (len))
# define SECP256K1_CHECKMEM_RUNNING() (1)
# endif
#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