1 files changed, 28 insertions, 0 deletions
diff --git a/libc/stdlib/malloc-930716/morecore.c b/libc/stdlib/malloc-930716/morecore.c
new file mode 100644
index 000000000..e2ad4464b
--- /dev/null
+++ b/libc/stdlib/malloc-930716/morecore.c
@@ -0,0 +1,28 @@
+/* morecore.c - C library support routine for UNIX.
+   Copyright (c) 1989, 1993  Michael J. Haertel
+   You may redistribute this library under the terms of the
+   GNU Library General Public License (version 2 or any later
+   version) as published by the Free Software Foundation.
+   THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY EXPRESS OR IMPLIED
+   WARRANTY.  IN PARTICULAR, THE AUTHOR MAKES NO REPRESENTATION OR
+   WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS
+   SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. */
+
+#include <limits.h>
+#include <stddef.h>
+#include "malloc.h"
+
+extern void *sbrk(int);
+
+/* Note that morecore has to take a signed argument so
+   that negative values can return memory to the system. */
+void *
+__default_morecore_init(long size)
+{
+    void *result;
+
+    result = sbrk(size);
+    if (result == (void *) -1)
+	return NULL;
+    return result;
+}