1 files changed, 28 insertions, 12 deletions
diff --git a/indra/llcommon/llmemory.h b/indra/llcommon/llmemory.h
index 4480e381e8..4ead45679f 100644
--- a/indra/llcommon/llmemory.h
+++ b/indra/llcommon/llmemory.h
@@ -27,14 +27,18 @@
 #define LLMEMORY_H
 
 #include "linden_common.h"
+#if !LL_WINDOWS
+#include <stdint.h>
+#endif
 
 class LLMutex ;
 
-#ifdef LL_WINDOWS
-#define LL_ALIGNED(x) __declspec(align(x))
+#if LL_WINDOWS && LL_DEBUG
+#define LL_CHECK_MEMORY llassert(_CrtCheckMemory());
 #else
-#define LL_ALIGNED(x) __attribute__ ((aligned (16)))
+#define LL_CHECK_MEMORY
 #endif
+
 inline void* ll_aligned_malloc( size_t size, int align )
 {
 	void* mem = malloc( size + (align - 1) + sizeof(void*) );
@@ -66,31 +70,43 @@ inline void* ll_aligned_malloc_16(size_t size) // returned hunk MUST be freed wi
 #endif
 }
 
-inline void* ll_aligned_realloc_16(void* ptr, size_t size) // returned hunk MUST be freed with ll_aligned_free_16().
+inline void ll_aligned_free_16(void *p)
 {
 #if defined(LL_WINDOWS)
-	return _aligned_realloc(ptr, size, 16);
+	_aligned_free(p);
 #elif defined(LL_DARWIN)
-	return realloc(ptr,size); // default osx malloc is 16 byte aligned.
+	return free(p);
 #else
-	return realloc(ptr,size); // FIXME not guaranteed to be aligned.
+	free(p); // posix_memalign() is compatible with heap deallocator
 #endif
 }
 
-inline void ll_aligned_free_16(void *p)
+inline void* ll_aligned_realloc_16(void* ptr, size_t size, size_t old_size) // returned hunk MUST be freed with ll_aligned_free_16().
 {
 #if defined(LL_WINDOWS)
-	_aligned_free(p);
+	return _aligned_realloc(ptr, size, 16);
 #elif defined(LL_DARWIN)
-	return free(p);
+	return realloc(ptr,size); // default osx malloc is 16 byte aligned.
 #else
-	free(p); // posix_memalign() is compatible with heap deallocator
+	//FIXME: memcpy is SLOW
+	void* ret = ll_aligned_malloc_16(size);
+	if (ptr)
+	{
+		if (ret)
+		{
+			// Only copy the size of the smallest memory block to avoid memory corruption.
+			memcpy(ret, ptr, llmin(old_size, size));
+		}
+		ll_aligned_free_16(ptr);
+	}
+	return ret;
 #endif
 }
+
 #else // USE_TCMALLOC
 // ll_aligned_foo_16 are not needed with tcmalloc
 #define ll_aligned_malloc_16 malloc
-#define ll_aligned_realloc_16 realloc
+#define ll_aligned_realloc_16(a,b,c) realloc(a,b)
 #define ll_aligned_free_16 free
 #endif // USE_TCMALLOC