[ARM] Fixes for arm str* routines

[Richard Earnshaw]

Another couple of bugs have been found in the string routines that I
posted recently.  The first, fixed by Mark Mitchell, concerns the
thumb-2 compilation of strlen (strings shorter than 4 bytes could
sometimes be reported as being longer than 4 bytes).

The second is a case of an unfortunate (l)user.  Anyone unfortunate
enough to have a string that contained 0x80 would find that the routines
treated that as an end-of-string marker, leading to short strings.

Fixed thusly:

2009-03-09  Mark Mitchell  <mark@codesourcery.com>

        * libc/machine/arm/strlen.c (strlen): Fix defect in Thumb-2 mode.

2009-03-12  Richard Earnshaw  <rearnsha@arm.com>

	* libc/machine/arm/strlen.c (strlen): Correctly detect
	end-of-string.
	* libc/machine/arm/strcpy.c (strcpy): Likewise.
	* libc/machine/arm/strcmp.c (strcmp, strcmp_unaligned): Likewise.


-------------- next part --------------
A non-text attachment was scrubbed...
Name: strfunc.diff
Type: text/x-patch
Size: 4621 bytes
Desc: not available
URL: <http://sourceware.org/pipermail/newlib/attachments/20090312/f27a27de/attachment.bin>