Subzero: small cleanups

runtime/szrt_asan.c

 //===- subzero/runtime/szrt_asan.c - AddressSanitizer Runtime -----*- C -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 178 matching lines @@
   if (new_alloc == NULL)
     return NULL;
   size_t copyable = (size < old_size) ? size : old_size;
   memcpy(new_alloc, ptr, copyable);
   __asan_free(ptr);
   return new_alloc;
 }
 
 void __asan_free(char *ptr) {
   DUMP("free() called on %p\n", ptr);
-  void *rz_left, *rz_right;
+  char *rz_left, *rz_right;
   __asan_get_redzones(ptr, &rz_left, &rz_right);
   size_t rz_right_size = *(size_t *)rz_right;
   __asan_unpoison(rz_left, RZ_SIZE);
   __asan_unpoison(rz_right, rz_right_size);
   free(rz_left);
 }
 
 void __asan_poison(char *ptr, int size) {
   char *end = ptr + size;
   assert(IS_SHADOW_ALIGNED(end));
@@ skipping 16 matching lines @@
   assert(size < 2 * RZ_SIZE);
   DUMP("unpoison %d bytes at %p: %p - %p\n", size, ptr, MEM2SHADOW(ptr),
        MEM2SHADOW(end));
   *(char *)MEM2SHADOW(ptr) = 0;
   ptr += SHADOW_OFFSET(size);
   assert(IS_SHADOW_ALIGNED(ptr));
   for (; ptr != end; ptr += SHADOW_SCALE) {
     *(char *)MEM2SHADOW(ptr) = 0;
   }
 }