commit 16e185c9081530859c17270fbaf5798f0ea871f8
author Christopher Ferris <cferris@google.com> Tue Sep 10 16:56:34 2013 -0700
committer Christopher Ferris <cferris@google.com> Fri Sep 20 20:12:09 2013 -0700
tree 610f608fea65670da8650a1d93585321972526db
parent ad999b6062909d4922fb360a6f3b7f412cc06111

__memcpy_chk: Fix signed cmp of unsigned values.

I accidentally did a signed comparison of the size_t values passed in
for three of the _chk functions. Changing them to unsigned compares.

Add three new tests to verify this failure is fixed.

Bug: 10691831

Merge from internal master.

(cherry-picked from 883ef2499c2ff76605f73b1240f719ca6282e554)

Change-Id: Id9a96b549435f5d9b61dc132cf1082e0e30889f5

libc/arch-arm/krait/bionic/memcpy.S

diff --git a/libc/arch-arm/krait/bionic/memcpy.S b/libc/arch-arm/krait/bionic/memcpy.S
index e433402..ea040bc 100644
--- a/libc/arch-arm/krait/bionic/memcpy.S
+++ b/libc/arch-arm/krait/bionic/memcpy.S
@@ -46,7 +46,7 @@
 ENTRY(__memcpy_chk)
         .cfi_startproc
         cmp         r2, r3
-        bgt         __memcpy_chk_fail
+        bhi         __memcpy_chk_fail
 
         // Fall through to memcpy...
         .cfi_endproc