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Fix segmentation fault in strncasecmp for i686

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2012-08-15  Liubov Dmitrieva  <liubov.dmitrieva@gmail.com>

	[BZ #14195]
        * sysdeps/i386/i686/multiarch/strcmp-sssse3.S: Fix
        segmentation fault for a case of two empty input strings.
	* string/test-strncasecmp.c (check1): Renamed to...
	(bz12205): ...this.
	(bz14195): Add new testcase for two empty input strings and N > 0.
	(test_main): Call new testcase, adapt for renamed function.
This commit is contained in:
Liubov Dmitrieva 2012-08-15 21:06:55 +02:00 committed by Andreas Jaeger
parent 9c55864e0d
commit b3f479a85a
4 changed files with 27 additions and 7 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
2012-08-15 Liubov Dmitrieva <liubov.dmitrieva@gmail.com>
[BZ #14195]
* sysdeps/i386/i686/multiarch/strcmp-sssse3.S: Fix
segmentation fault for a case of two empty input strings.
* string/test-strncasecmp.c (check1): Renamed to...
(bz12205): ...this.
(bz14195): Add new testcase for two empty input strings and N > 0.
(test_main): Call new testcase, adapt for renamed function.
2012-08-15 Andreas Jaeger <aj@suse.de>
[BZ #14090]

4
NEWS
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@ -10,8 +10,8 @@ Version 2.17
* The following bugs are resolved with this release:
6778, 6808, 13717, 13939, 14042, 14090, 14166, 14150, 14151, 14154, 14157,
14166, 14173, 14283, 14298, 14303, 14307, 14328, 14331, 14336, 14337,
14347, 14349
14166, 14173, 14195, 14283, 14298, 14303, 14307, 14328, 14331, 14336,
14337, 14347, 14349
* Support for STT_GNU_IFUNC symbols added for s390 and s390x.
Optimized versions of memcpy, memset, and memcmp added for System z10 and

18
string/test-strncasecmp.c
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@ -1,5 +1,5 @@
/* Test and measure strncasecmp functions.
Copyright (C) 1999, 2002, 2003, 2005, 2010 Free Software Foundation, Inc.
Copyright (C) 1999-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Jakub Jelinek <jakub@redhat.com>, 1999.
@ -251,9 +251,9 @@ do_random_tests (void)
}
}
/* Regression test for BZ #12205 */
static void
check1 (void)
bz12205 (void)
{
static char cp [4096+16] __attribute__ ((aligned(4096)));
static char gotrel[4096] __attribute__ ((aligned(4096)));
@ -270,6 +270,15 @@ check1 (void)
check_result (impl, s1, s2, n, exp_result);
}
/* Regression test for BZ #14195 */
static void
bz14195 (void)
{
const char *empty_string = "";
FOR_EACH_IMPL (impl, 0)
check_result (impl, empty_string, "", 5, 0);
}
int
test_main (void)
{
@ -277,7 +286,8 @@ test_main (void)
test_init ();
check1 ();
bz12205 ();
bz14195 ();
printf ("%23s", "");
FOR_EACH_IMPL (impl, 0)

2
sysdeps/i386/i686/multiarch/strcmp-ssse3.S Normal file → Executable file
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@ -2445,7 +2445,7 @@ L(less16bytes_sncmp):
# endif
jne L(neq_sncmp)
test %cl, %cl
je L(eq)
je L(eq_sncmp)
cmp $1, REM
je L(eq_sncmp)