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-rw-r--r--sysdeps/s390/Makefile3
-rw-r--r--sysdeps/s390/ifunc-strcmp.h52
-rw-r--r--sysdeps/s390/multiarch/Makefile3
-rw-r--r--sysdeps/s390/multiarch/ifunc-impl-list.c14
-rw-r--r--sysdeps/s390/s390-32/multiarch/strcmp.c21
-rw-r--r--sysdeps/s390/s390-32/strcmp.S41
-rw-r--r--sysdeps/s390/s390-64/multiarch/strcmp.c21
-rw-r--r--sysdeps/s390/strcmp-vx.S (renamed from sysdeps/s390/multiarch/strcmp-vx.S)19
-rw-r--r--sysdeps/s390/strcmp-z900.S (renamed from sysdeps/s390/s390-64/strcmp.S)32
-rw-r--r--sysdeps/s390/strcmp.c (renamed from sysdeps/s390/multiarch/strcmp.c)17
10 files changed, 119 insertions, 104 deletions
diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile
index ec0fb8c2ad..9e7d5625c9 100644
--- a/sysdeps/s390/Makefile
+++ b/sysdeps/s390/Makefile
@@ -67,5 +67,6 @@ sysdep_routines += bzero memset memset-z900 \
 		   strncpy strncpy-vx strncpy-z900 \
 		   stpncpy stpncpy-vx stpncpy-c \
 		   strcat strcat-vx strcat-c \
-		   strncat strncat-vx strncat-c
+		   strncat strncat-vx strncat-c \
+		   strcmp strcmp-vx strcmp-z900
 endif
diff --git a/sysdeps/s390/ifunc-strcmp.h b/sysdeps/s390/ifunc-strcmp.h
new file mode 100644
index 0000000000..86ffe686ad
--- /dev/null
+++ b/sysdeps/s390/ifunc-strcmp.h
@@ -0,0 +1,52 @@
+/* strcmp variant information on S/390 version.
+   Copyright (C) 2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#if defined USE_MULTIARCH && IS_IN (libc)		\
+  && ! defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define HAVE_STRCMP_IFUNC	1
+#else
+# define HAVE_STRCMP_IFUNC	0
+#endif
+
+#ifdef HAVE_S390_VX_ASM_SUPPORT
+# define HAVE_STRCMP_IFUNC_AND_VX_SUPPORT HAVE_STRCMP_IFUNC
+#else
+# define HAVE_STRCMP_IFUNC_AND_VX_SUPPORT 0
+#endif
+
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define STRCMP_DEFAULT		STRCMP_Z13
+# define HAVE_STRCMP_Z900_G5	0
+# define HAVE_STRCMP_Z13	1
+#else
+# define STRCMP_DEFAULT		STRCMP_Z900_G5
+# define HAVE_STRCMP_Z900_G5	1
+# define HAVE_STRCMP_Z13	HAVE_STRCMP_IFUNC_AND_VX_SUPPORT
+#endif
+
+#if HAVE_STRCMP_Z900_G5
+# define STRCMP_Z900_G5		__strcmp_default
+#else
+# define STRCMP_Z900_G5		NULL
+#endif
+
+#if HAVE_STRCMP_Z13
+# define STRCMP_Z13		__strcmp_vx
+#else
+# define STRCMP_Z13		NULL
+#endif
diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
index 24be3eac51..97421a4996 100644
--- a/sysdeps/s390/multiarch/Makefile
+++ b/sysdeps/s390/multiarch/Makefile
@@ -1,6 +1,5 @@
 ifeq ($(subdir),string)
-sysdep_routines += strcmp strcmp-vx \
-		   strncmp strncmp-vx strncmp-c \
+sysdep_routines += strncmp strncmp-vx strncmp-c \
 		   strchr strchr-vx strchr-c \
 		   strchrnul strchrnul-vx strchrnul-c \
 		   strrchr strrchr-vx strrchr-c \
diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c
index 3abcaf08e0..44637c431b 100644
--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
@@ -34,6 +34,7 @@
 #include <ifunc-stpncpy.h>
 #include <ifunc-strcat.h>
 #include <ifunc-strncat.h>
+#include <ifunc-strcmp.h>
 
 /* Maximum number of IFUNC implementations.  */
 #define MAX_IFUNC	3
@@ -268,6 +269,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 		)
 #endif /* HAVE_STRNCAT_IFUNC  */
 
+#if HAVE_STRCMP_IFUNC
+    IFUNC_IMPL (i, name, strcmp,
+# if HAVE_STRCMP_Z13
+		IFUNC_IMPL_ADD (array, i, strcmp,
+				dl_hwcap & HWCAP_S390_VX, STRCMP_Z13)
+# endif
+# if HAVE_STRCMP_Z900_G5
+		IFUNC_IMPL_ADD (array, i, strcmp, 1, STRCMP_Z900_G5)
+# endif
+		)
+#endif /* HAVE_STRCMP_IFUNC  */
+
 #ifdef HAVE_S390_VX_ASM_SUPPORT
 
 # define IFUNC_VX_IMPL(FUNC)						\
@@ -292,7 +305,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 
   IFUNC_VX_IMPL (wcsncat);
 
-  IFUNC_VX_IMPL (strcmp);
   IFUNC_VX_IMPL (wcscmp);
 
   IFUNC_VX_IMPL (strncmp);
diff --git a/sysdeps/s390/s390-32/multiarch/strcmp.c b/sysdeps/s390/s390-32/multiarch/strcmp.c
deleted file mode 100644
index d06b0f3436..0000000000
--- a/sysdeps/s390/s390-32/multiarch/strcmp.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/* Multiple versions of strcmp.
-   Copyright (C) 2015-2018 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-/* This wrapper-file is needed, because otherwise file
-   sysdeps/s390/s390-[32|64]/strcmp.S will be used.  */
-#include <sysdeps/s390/multiarch/strcmp.c>
diff --git a/sysdeps/s390/s390-32/strcmp.S b/sysdeps/s390/s390-32/strcmp.S
deleted file mode 100644
index 3cf3f239fd..0000000000
--- a/sysdeps/s390/s390-32/strcmp.S
+++ /dev/null
@@ -1,41 +0,0 @@
-/* strcmp - compare two string.  S/390 version.
-   This file is part of the GNU C Library.
-   Copyright (C) 2001-2018 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-/* INPUT PARAMETERS
-     %r2 = address of string 1
-     %r3 = address of string 2.  */
-
-#include "sysdep.h"
-#include "asm-syntax.h"
-
-	.text
-ENTRY(strcmp)
-        slr   %r0,%r0
-0:	clst  %r2,%r3
-	jo    0b
-	jp    1f
-	jm    2f
-	slr   %r2,%r2
-	br    %r14
-1:	lhi   %r2,1
-	br    %r14
-2:	lhi   %r2,-1
-	br    %r14
-END(strcmp)
-libc_hidden_builtin_def (strcmp)
diff --git a/sysdeps/s390/s390-64/multiarch/strcmp.c b/sysdeps/s390/s390-64/multiarch/strcmp.c
deleted file mode 100644
index d06b0f3436..0000000000
--- a/sysdeps/s390/s390-64/multiarch/strcmp.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/* Multiple versions of strcmp.
-   Copyright (C) 2015-2018 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-/* This wrapper-file is needed, because otherwise file
-   sysdeps/s390/s390-[32|64]/strcmp.S will be used.  */
-#include <sysdeps/s390/multiarch/strcmp.c>
diff --git a/sysdeps/s390/multiarch/strcmp-vx.S b/sysdeps/s390/strcmp-vx.S
index bcaeb564d4..801ad9d32b 100644
--- a/sysdeps/s390/multiarch/strcmp-vx.S
+++ b/sysdeps/s390/strcmp-vx.S
@@ -16,7 +16,8 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
+#include <ifunc-strcmp.h>
+#if HAVE_STRCMP_Z13
 
 # include "sysdep.h"
 # include "asm-syntax.h"
@@ -36,7 +37,7 @@
    -v17=part of s2
    -v18=index of unequal
 */
-ENTRY(__strcmp_vx)
+ENTRY(STRCMP_Z13)
 	.machine "z13"
 	.machinemode "zarch_nohighgprs"
 
@@ -106,11 +107,13 @@ ENTRY(__strcmp_vx)
 .Lend_equal:
 	lghi	%r2,0
 	br	%r14
-END(__strcmp_vx)
+END(STRCMP_Z13)
 
-# define strcmp __strcmp_c
-# undef libc_hidden_builtin_def
-# define libc_hidden_builtin_def(name) strong_alias(__strcmp_c, __GI_strcmp)
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
+# if ! HAVE_STRCMP_IFUNC
+strong_alias (STRCMP_Z13, strcmp)
+# endif
 
-#include <strcmp.S>
+# if ! HAVE_STRCMP_Z900_G5 && defined SHARED && IS_IN (libc)
+strong_alias (STRCMP_Z13, __GI_strcmp)
+# endif
+#endif
diff --git a/sysdeps/s390/s390-64/strcmp.S b/sysdeps/s390/strcmp-z900.S
index 6cf1addd8b..67b3c8b2e5 100644
--- a/sysdeps/s390/s390-64/strcmp.S
+++ b/sysdeps/s390/strcmp-z900.S
@@ -21,21 +21,39 @@
      %r2 = address of string 1
      %r3 = address of string 2.  */
 
+#include <ifunc-strcmp.h>
 #include "sysdep.h"
 #include "asm-syntax.h"
 
+#if HAVE_STRCMP_Z900_G5
+# if defined __s390x__
+#  define SLGR	slgr
+#  define LGHI	lghi
+# else
+#  define SLGR	slr
+#  define LGHI	lhi
+# endif /* ! defined __s390x__  */
+
 	.text
-ENTRY(strcmp)
-        slr   %r0,%r0
+ENTRY(STRCMP_Z900_G5)
+	SLGR   %r0,%r0
 0:	clst  %r2,%r3
 	jo    0b
 	jp    1f
 	jm    2f
-	slgr  %r2,%r2
+	SLGR  %r2,%r2
 	br    %r14
-1:	lghi  %r2,1
+1:	LGHI  %r2,1
 	br    %r14
-2:	lghi  %r2,-1
+2:	LGHI  %r2,-1
 	br    %r14
-END(strcmp)
-libc_hidden_builtin_def (strcmp)
+END(STRCMP_Z900_G5)
+
+# if ! HAVE_STRCMP_IFUNC
+strong_alias (STRCMP_Z900_G5, strcmp)
+# endif
+
+# if defined SHARED && IS_IN (libc)
+strong_alias (STRCMP_Z900_G5, __GI_strcmp)
+# endif
+#endif
diff --git a/sysdeps/s390/multiarch/strcmp.c b/sysdeps/s390/strcmp.c
index 7c8b17b304..9efa30acaf 100644
--- a/sysdeps/s390/multiarch/strcmp.c
+++ b/sysdeps/s390/strcmp.c
@@ -16,7 +16,9 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
+#include <ifunc-strcmp.h>
+
+#if HAVE_STRCMP_IFUNC
 # define strcmp __redirect_strcmp
 /* Omit the strcmp inline definitions because it would redefine strcmp.  */
 # define __NO_STRING_INLINES
@@ -24,6 +26,17 @@
 # include <ifunc-resolve.h>
 # undef strcmp
 
-s390_vx_libc_ifunc2_redirected (__redirect_strcmp, __strcmp, strcmp)
+# if HAVE_STRCMP_Z900_G5
+extern __typeof (__redirect_strcmp) STRCMP_Z900_G5 attribute_hidden;
+# endif
+
+# if HAVE_STRCMP_Z13
+extern __typeof (__redirect_strcmp) STRCMP_Z13 attribute_hidden;
+# endif
 
+s390_libc_ifunc_expr (__redirect_strcmp, strcmp,
+		      (HAVE_STRCMP_Z13 && (hwcap & HWCAP_S390_VX))
+		      ? STRCMP_Z13
+		      : STRCMP_DEFAULT
+		      )
 #endif
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-09-16 06:45:26 +0000