From: Joseph Myers <joseph@codesourcery.com>
Date: Wed, 1 Jul 2009 14:37:15 +0000 (+0000)
Subject: Correct ARM memcpy comments.
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=801626b26745a1bd24cbf56c3d8720204a1db95d;p=uclinux-h8%2Fuclibc-ng.git

Correct ARM memcpy comments.

The comments on register usage in ARM memcpy had dest and src the
wrong way round; this patch (originally from Mark Shinwell) corrects
this and adds a note on the return value.

Signed-off-by: Joseph Myers <joseph@codesourcery.com>
---

diff --git a/libc/string/arm/_memcpy.S b/libc/string/arm/_memcpy.S
index 1dc0887a4..b26080d02 100644
--- a/libc/string/arm/_memcpy.S
+++ b/libc/string/arm/_memcpy.S
@@ -67,8 +67,9 @@
  * a time where possible.
  *
  * Note: r12 (aka ip) can be trashed during the function along with
- * r0-r3 although r0-r2 have defined uses i.e. src, dest, len through out.
+ * r0-r3 although r0-r2 have defined uses i.e. dest, src, len throughout.
  * Additional registers are preserved prior to use i.e. r4, r5 & lr
+ * The return value in r0 must be the destination address.
  *
  * Apologies for the state of the comments ;-)
  */