diff options
| -rw-r--r-- | include/my_valgrind.h | 4 | ||||
| -rw-r--r-- | mysys/my_alloc.c | 3 |
2 files changed, 4 insertions, 3 deletions
diff --git a/include/my_valgrind.h b/include/my_valgrind.h index 8dde079b976..5d08a271d4a 100644 --- a/include/my_valgrind.h +++ b/include/my_valgrind.h @@ -49,9 +49,9 @@ https://github.com/google/sanitizers/wiki/AddressSanitizerManualPoisoning */ #endif /* HAVE_VALGRIND */ #ifndef DBUG_OFF -#define TRASH_FILL(A,B,C) do { MEM_UNDEFINED(A,B); memset(A,C,B); } while(0) +#define TRASH_FILL(A,B,C) do { const size_t trash_tmp= (B); MEM_UNDEFINED(A, trash_tmp); memset(A, C, trash_tmp); } while (0) #else -#define TRASH_FILL(A,B,C) do { MEM_UNDEFINED(A,B); } while(0) +#define TRASH_FILL(A,B,C) do { const size_t trash_tmp __attribute__((unused))= (B); MEM_UNDEFINED(A,trash_tmp); } while (0) #endif #define TRASH_ALLOC(A,B) do { TRASH_FILL(A,B,0xA5); MEM_UNDEFINED(A,B); } while(0) #define TRASH_FREE(A,B) do { TRASH_FILL(A,B,0x8F); MEM_NOACCESS(A,B); } while(0) diff --git a/mysys/my_alloc.c b/mysys/my_alloc.c index 24e95d2c69c..e727f46be6d 100644 --- a/mysys/my_alloc.c +++ b/mysys/my_alloc.c @@ -184,6 +184,7 @@ void *alloc_root(MEM_ROOT *mem_root, size_t length) uchar* point; reg1 USED_MEM *next= 0; reg2 USED_MEM **prev; + size_t original_length = length; DBUG_ENTER("alloc_root"); DBUG_PRINT("enter",("root: 0x%lx", (long) mem_root)); DBUG_ASSERT(alloc_root_inited(mem_root)); @@ -241,7 +242,7 @@ void *alloc_root(MEM_ROOT *mem_root, size_t length) mem_root->used= next; mem_root->first_block_usage= 0; } - TRASH_ALLOC(point, length); + TRASH_ALLOC(point, original_length); DBUG_PRINT("exit",("ptr: 0x%lx", (ulong) point)); DBUG_RETURN((void*) point); #endif |