mem: do not produce usage counts when tsan is unavailable.
Doing the tsan operations under lock would be difficult to arrange here (locks
require memory allocation).
@@ -26,11 +26,17 @@ static CRYPTO_free_fn free_impl = CRYPTO_free;
#if !defined(OPENSSL_NO_CRYPTO_MDEBUG) && !defined(FIPS_MODULE)
# include "internal/tsan_assist.h"
+# ifdef TSAN_REQUIRES_LOCKING
+# define INCREMENT(x) /* empty */
+# define LOAD(x) 0
+# else /* TSAN_REQUIRES_LOCKING */
static TSAN_QUALIFIER int malloc_count;
static TSAN_QUALIFIER int realloc_count;
static TSAN_QUALIFIER int free_count;
# define INCREMENT(x) tsan_counter(&(x))
+# define LOAD(x) tsan_load(&x)
+# endif /* TSAN_REQUIRES_LOCKING */
static char *md_failstring;
static long md_count;
@@ -79,11 +85,11 @@ void CRYPTO_get_mem_functions(CRYPTO_malloc_fn *malloc_fn,
void CRYPTO_get_alloc_counts(int *mcount, int *rcount, int *fcount)
{
if (mcount != NULL)
- *mcount = tsan_load(&malloc_count);
+ *mcount = LOAD(malloc_count);
if (rcount != NULL)
- *rcount = tsan_load(&realloc_count);
+ *rcount = LOAD(realloc_count);
if (fcount != NULL)
- *fcount = tsan_load(&free_count);
+ *fcount = LOAD(free_count);
}
/*
