1 files changed, 57 insertions, 0 deletions
diff --git a/libgloss/rl78/sbrk.c b/libgloss/rl78/sbrk.c
new file mode 100644
index 000000000..acff713fb
--- /dev/null
+++ b/libgloss/rl78/sbrk.c
@@ -0,0 +1,57 @@
+/*
+
+Copyright (c) 2005, 2009 Red Hat Incorporated.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without 
+modification, are permitted provided that the following conditions are met: 
+
+    Redistributions of source code must retain the above copyright 
+    notice, this list of conditions and the following disclaimer.
+
+    Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+
+    The name of Red Hat Incorporated may not be used to endorse 
+    or promote products derived from this software without specific 
+    prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED.  IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+
+*/
+
+#include <errno.h>
+
+char *
+_sbrk (int adj)
+{
+  extern char    end;
+  static char *  heap = & end;
+  char *         rv = heap;
+  char *	 heaptop = (char *) &adj;
+
+  heap += adj;
+
+      /* The allocated chunk spans our stack?  */
+  if (rv < heaptop && heap > heaptop
+      /* The allocated chunk spans our address space?  */
+      || heap < rv)
+    {
+      errno = ENOMEM;
+      return (char *) -1;
+    }
+
+  return rv;
+}
+
+char * sbrk (int) __attribute__((weak, alias ("_sbrk")));