From: Andreas Schwab <schwab@suse.de>
Date: Mon, 29 Jul 2013 12:58:41 +0000 (+0200)
Subject: Fix handling LC_CTYPE nonascii-case fallback in i686 SSE4.2 and SSSE3 strcasecmp... 
X-Git-Tag: glibc-2.19~875
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5d228a436a8257f082e84671bf8c89b79a2c3853;p=platform%2Fupstream%2Fglibc.git

Fix handling LC_CTYPE nonascii-case fallback in i686 SSE4.2 and SSSE3 strcasecmp/strncasecmp
---

diff --git a/ChangeLog b/ChangeLog
index ed8d7fe..89f2fef 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2013-08-27  Andreas Schwab  <schwab@suse.de>
+
+	* sysdeps/i386/i686/multiarch/strcmp-sse4.S (__strcasecmp_sse4_2)
+	(__strncasecmp_sse4_2) [PIC]: Restore %ebx before falling through
+	to __strcasecmp_nonascii and __strncasecmp_nonascii.
+	* sysdeps/i386/i686/multiarch/strcmp-ssse3.S (__strcasecmp_ssse3)
+	(__strncasecmp_ssse3) [PIC]: Likewise.
+
 2013-08-26  Roland McGrath  <roland@hack.frob.com>
 
 	* io/lxstat64.c: Just call __xstat64, for parity with stub __lxstat.
diff --git a/sysdeps/i386/i686/multiarch/strcmp-sse4.S b/sysdeps/i386/i686/multiarch/strcmp-sse4.S
index 62f458f..355ed4e 100644
--- a/sysdeps/i386/i686/multiarch/strcmp-sse4.S
+++ b/sysdeps/i386/i686/multiarch/strcmp-sse4.S
@@ -121,8 +121,14 @@ ENTRY (__strcasecmp_sse4_2)
 	movl	(%eax), %eax
 # endif
 	testl	$1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
+# ifdef PIC
+	je	L(ascii)
+	POP	(%ebx)
+	jmp	__strcasecmp_nonascii
+# else
 	jne	__strcasecmp_nonascii
 	jmp	L(ascii)
+# endif
 END (__strcasecmp_sse4_2)
 #endif
 
@@ -152,8 +158,14 @@ ENTRY (__strncasecmp_sse4_2)
 	movl	(%eax), %eax
 # endif
 	testl	$1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
+# ifdef PIC
+	je	L(ascii)
+	POP	(%ebx)
+	jmp	__strncasecmp_nonascii
+# else
 	jne	__strncasecmp_nonascii
 	jmp	L(ascii)
+# endif
 END (__strncasecmp_sse4_2)
 #endif
 
diff --git a/sysdeps/i386/i686/multiarch/strcmp-ssse3.S b/sysdeps/i386/i686/multiarch/strcmp-ssse3.S
index 5fd9ac8..3eb304b 100644
--- a/sysdeps/i386/i686/multiarch/strcmp-ssse3.S
+++ b/sysdeps/i386/i686/multiarch/strcmp-ssse3.S
@@ -138,8 +138,14 @@ ENTRY (__strcasecmp_ssse3)
 	movl	(%eax), %eax
 # endif
 	testl	$1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
+# ifdef PIC
+	je	L(ascii)
+	POP	(%ebx)
+	jmp	__strcasecmp_nonascii
+# else
 	jne	__strcasecmp_nonascii
 	jmp	L(ascii)
+# endif
 END (__strcasecmp_ssse3)
 #endif
 
@@ -169,8 +175,14 @@ ENTRY (__strncasecmp_ssse3)
 	movl	(%eax), %eax
 # endif
 	testl	$1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
+# ifdef PIC
+	je	L(ascii)
+	POP	(%ebx)
+	jmp	__strncasecmp_nonascii
+# else
 	jne	__strncasecmp_nonascii
 	jmp	L(ascii)
+# endif
 END (__strncasecmp_ssse3)
 #endif