malloc() now also logs an error when a request could not be served.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27677 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/boot/loader/heap.cpp

@@ -252,8 +252,10 @@ malloc(size_t size)
 	// align the size requirement to a 4 bytes boundary
 	size = (size + 3) & 0xfffffffc;
 
-	if (size > sAvailable)
+	if (size > sAvailable) {
+		dprintf("malloc(): Out of memory!\n");
 		return NULL;
+	}
 
 	free_chunk *chunk = sFreeAnchor.next, *last = &sFreeAnchor;
 	while (chunk && chunk->Size() < size) {
@@ -263,6 +265,7 @@ malloc(size_t size)
 
 	if (chunk == NULL) {
 		// could not find a free chunk as large as needed
+		dprintf("malloc(): Out of memory!\n");
 		return NULL;
 	}