1 files changed, 32 insertions, 0 deletions
diff --git a/newlib/libc/machine/nvptx/realloc.c b/newlib/libc/machine/nvptx/realloc.c
new file mode 100644
index 000000000..1cb84df5d
--- /dev/null
+++ b/newlib/libc/machine/nvptx/realloc.c
@@ -0,0 +1,32 @@
+/*
+ * Support file for nvptx in newlib.
+ * Copyright (c) 2016-2018 Mentor Graphics.
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#include <stdlib.h>
+
+void *
+realloc (void *old_ptr, size_t new_size)
+{
+  void *new_ptr = malloc (new_size);
+
+  if (old_ptr && new_ptr)
+    {
+      size_t old_size = *(size_t *)((long long *)old_ptr - 1);
+      size_t copy_size = old_size > new_size ? new_size : old_size;
+      __builtin_memcpy (new_ptr, old_ptr, copy_size);
+      free (old_ptr);
+    }
+
+  return new_ptr;
+}