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[Bug libc/13540] Bug in ssse3 strcpy, strncpy, stpncpy, stpcpy, strcat, strncat
- From: "liubov.dmitrieva at gmail dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Thu, 22 Dec 2011 16:26:03 +0000
- Subject: [Bug libc/13540] Bug in ssse3 strcpy, strncpy, stpncpy, stpcpy, strcat, strncat
- Auto-submitted: auto-generated
- References: <bug-13540-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=13540
--- Comment #4 from Liubov Dmitrieva <liubov.dmitrieva at gmail dot com> 2011-12-22 16:26:03 UTC ---
I developed better stress test case (test1.tar)which covers more routines.
Compile string:
gcc test.c $GLIBC/strcpy-ssse3.S $GLIBC/strcat-ssse3.S $GLIBC/strncpy-ssse3.S
$GLIBC/strncat-ssse3.S $GLIBC/wcs*-ssse3.S -odo -m32 -lpthread -g -std=c99 -I.
Run: ./do
After applying the patch I've sent to libc-alpha today I see that issues still
remains in wcscpy.
Output:
-bash-4.2$ ./do
strlen: 248
main thread(tid:776 pid:776 ppid:18191)!
Strncpy is ok
Strncat is ok
Strcpy is ok
Strcat is ok
*** glibc detected *** ./do: corrupted double-linked list: 0xf6600618 ***
Before applying the patch I've sent today I have no any function from tets list
is ok.:
-bash-4.2$ ./do
strlen: 248
main thread(tid:819 pid:819 ppid:18191)!
*** glibc detected *** ./do: double free or corruption (out): 0xf65004f0 ***
If I switch in test.c file all string implementation to standart I have on
Fedora 15 machine, every test is ok.
I will submit remaining fix in wcscpy tomorrow.
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