Bug 13540. Fix for strcpy, strcat, strncpy, strncat, stpcpy, stpncpy.

[Dmitrieva Liubov]

Hello

This patch fixes the bug #13540 (sourceware.org/bugzilla).

strncpy()/strncpy()/.../  algorithm uses the destination
memory beyond the string end for 16-byte load, puts changes into that part that
is relevant to destination string and writes whole 16-byte chunk into memory.
I have a multi theading test case where the memory beyond the string
end contains malloc/free
data, that appear corrupted in case free() updates it in between the 16-byte
read and 16-byte write.


ChangeLog:
2011-12-22  Liubov Dmitrieva  <liubov.dmitrieva@gmail.com>

	* sysdeps/i386/i686/multiarch/strcpy-ssse3.S: Fix
	wrong copying processing for last bytes.


--
Liubov Dmitrieva
Intel Corporation
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