Re-add dlmalloc for 32 bit.
It turns out that appportable has a version that calls dlmalloc directly.
Re-add the dlmalloc symbol for 32 bit only as a compatibility shim that
calls malloc.
Bug: 17881362
(cherry pick commit from c9734d24d92f4737f5ab3808c77d816a1b084582)
Change-Id: Iee9a777f66a1edb407d7563a60792b767ac4f83a
diff --git a/libc/bionic/dlmalloc.h b/libc/bionic/dlmalloc.h
index ef78814..2f53c1b 100644
--- a/libc/bionic/dlmalloc.h
+++ b/libc/bionic/dlmalloc.h
@@ -34,11 +34,14 @@
#define malloc_getpagesize getpagesize()
-/* dlmalloc_usable_size was exposed in the NDK, so change the name
- * of the function on 32 bit architectures.
- */
#if !defined(__LP64__)
+/* dlmalloc_usable_size and dlmalloc were exposed in the NDK and some
+ * apps actually used them. Rename these functions out of the way
+ * for 32 bit architectures so that ndk_cruft.cpp can expose
+ * compatibility shims with these names.
+ */
#define dlmalloc_usable_size dlmalloc_usable_size_real
+#define dlmalloc dlmalloc_real
#endif
/* Export two symbols used by the VM. */