about summary refs log tree commit diff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--ChangeLog15
-rw-r--r--sysdeps/s390/Makefile3
-rw-r--r--sysdeps/s390/ifunc-strrchr.h52
-rw-r--r--sysdeps/s390/multiarch/Makefile3
-rw-r--r--sysdeps/s390/multiarch/ifunc-impl-list.c14
-rw-r--r--sysdeps/s390/strrchr-c.c (renamed from sysdeps/s390/multiarch/strrchr-c.c)20
-rw-r--r--sysdeps/s390/strrchr-vx.S (renamed from sysdeps/s390/multiarch/strrchr-vx.S)20
-rw-r--r--sysdeps/s390/strrchr.c (renamed from sysdeps/s390/multiarch/strrchr.c)23
8 files changed, 128 insertions, 22 deletions
diff --git a/ChangeLog b/ChangeLog
index 7431a8e767..e349dd31a9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,21 @@
 2018-12-18  Stefan Liebler  <stli@linux.ibm.com>
 
 	* sysdeps/s390/multiarch/Makefile
+	(sysdep_routines): Remove strrchr variants.
+	* sysdeps/s390/Makefile (sysdep_routines): Add strrchr variants.
+	* sysdeps/s390/multiarch/ifunc-impl-list.c
+	(__libc_ifunc_impl_list): Refactor ifunc handling for strrchr.
+	* sysdeps/s390/multiarch/strrchr-c.c: Move to ...
+	* sysdeps/s390/strrchr-c.c: ... here and adjust ifunc handling.
+	* sysdeps/s390/multiarch/strrchr-vx.S: Move to ...
+	* sysdeps/s390/strrchr-vx.S: ... here and adjust ifunc handling.
+	* sysdeps/s390/multiarch/strrchr.c: Move to ...
+	* sysdeps/s390/strrchr.c: ... here and adjust ifunc handling.
+	* sysdeps/s390/ifunc-strrchr.h: New file.
+
+2018-12-18  Stefan Liebler  <stli@linux.ibm.com>
+
+	* sysdeps/s390/multiarch/Makefile
 	(sysdep_routines): Remove strchrnul variants.
 	* sysdeps/s390/Makefile (sysdep_routines): Add strchrnul variants.
 	* sysdeps/s390/multiarch/ifunc-impl-list.c
diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile
index 07ec5e969f..c423c80a43 100644
--- a/sysdeps/s390/Makefile
+++ b/sysdeps/s390/Makefile
@@ -71,5 +71,6 @@ sysdep_routines += bzero memset memset-z900 \
 		   strcmp strcmp-vx strcmp-z900 \
 		   strncmp strncmp-vx strncmp-c \
 		   strchr strchr-vx strchr-c \
-		   strchrnul strchrnul-vx strchrnul-c
+		   strchrnul strchrnul-vx strchrnul-c \
+		   strrchr strrchr-vx strrchr-c
 endif
diff --git a/sysdeps/s390/ifunc-strrchr.h b/sysdeps/s390/ifunc-strrchr.h
new file mode 100644
index 0000000000..7185fc3260
--- /dev/null
+++ b/sysdeps/s390/ifunc-strrchr.h
@@ -0,0 +1,52 @@
+/* strrchr 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_STRRCHR_IFUNC	1
+#else
+# define HAVE_STRRCHR_IFUNC	0
+#endif
+
+#ifdef HAVE_S390_VX_ASM_SUPPORT
+# define HAVE_STRRCHR_IFUNC_AND_VX_SUPPORT HAVE_STRRCHR_IFUNC
+#else
+# define HAVE_STRRCHR_IFUNC_AND_VX_SUPPORT 0
+#endif
+
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define STRRCHR_DEFAULT	STRRCHR_Z13
+# define HAVE_STRRCHR_C		0
+# define HAVE_STRRCHR_Z13	1
+#else
+# define STRRCHR_DEFAULT	STRRCHR_C
+# define HAVE_STRRCHR_C		1
+# define HAVE_STRRCHR_Z13	HAVE_STRRCHR_IFUNC_AND_VX_SUPPORT
+#endif
+
+#if HAVE_STRRCHR_C
+# define STRRCHR_C		__strrchr_c
+#else
+# define STRRCHR_C		NULL
+#endif
+
+#if HAVE_STRRCHR_Z13
+# define STRRCHR_Z13		__strrchr_vx
+#else
+# define STRRCHR_Z13		NULL
+#endif
diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
index 999a979fee..c826755558 100644
--- a/sysdeps/s390/multiarch/Makefile
+++ b/sysdeps/s390/multiarch/Makefile
@@ -1,6 +1,5 @@
 ifeq ($(subdir),string)
-sysdep_routines += strrchr strrchr-vx strrchr-c \
-		   strspn strspn-vx strspn-c \
+sysdep_routines += strspn strspn-vx strspn-c \
 		   strpbrk strpbrk-vx strpbrk-c \
 		   strcspn strcspn-vx strcspn-c \
 		   memchr memchr-vx \
diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c
index 0a47ffeac3..60cd705ffa 100644
--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
@@ -38,6 +38,7 @@
 #include <ifunc-strncmp.h>
 #include <ifunc-strchr.h>
 #include <ifunc-strchrnul.h>
+#include <ifunc-strrchr.h>
 
 /* Maximum number of IFUNC implementations.  */
 #define MAX_IFUNC	3
@@ -320,6 +321,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 		)
 #endif /* HAVE_STRCHRNUL_IFUNC  */
 
+#if HAVE_STRRCHR_IFUNC
+    IFUNC_IMPL (i, name, strrchr,
+# if HAVE_STRRCHR_Z13
+		IFUNC_IMPL_ADD (array, i, strrchr,
+				dl_hwcap & HWCAP_S390_VX, STRRCHR_Z13)
+# endif
+# if HAVE_STRRCHR_C
+		IFUNC_IMPL_ADD (array, i, strrchr, 1, STRRCHR_C)
+# endif
+		)
+#endif /* HAVE_STRRCHR_IFUNC  */
+
 #ifdef HAVE_S390_VX_ASM_SUPPORT
 
 # define IFUNC_VX_IMPL(FUNC)						\
@@ -352,7 +365,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 
   IFUNC_VX_IMPL (wcschrnul);
 
-  IFUNC_VX_IMPL (strrchr);
   IFUNC_VX_IMPL (wcsrchr);
 
   IFUNC_VX_IMPL (strspn);
diff --git a/sysdeps/s390/multiarch/strrchr-c.c b/sysdeps/s390/strrchr-c.c
index 53ceb8086f..615f16da7d 100644
--- a/sysdeps/s390/multiarch/strrchr-c.c
+++ b/sysdeps/s390/strrchr-c.c
@@ -16,14 +16,18 @@
    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)
-# define STRRCHR  __strrchr_c
-# undef weak_alias
-# ifdef SHARED
-#  undef libc_hidden_builtin_def
-#  define libc_hidden_builtin_def(name)				\
+#include <ifunc-strrchr.h>
+
+#if HAVE_STRRCHR_C
+# if HAVE_STRRCHR_IFUNC
+#  define STRRCHR STRRCHR_C
+#  undef weak_alias
+#  if defined SHARED && IS_IN (libc)
+#   undef libc_hidden_builtin_def
+#   define libc_hidden_builtin_def(name)			\
      __hidden_ver1 (__strrchr_c, __GI_strrchr, __strrchr_c);
-# endif /* SHARED */
+#  endif
+# endif
 
 # include <string/strrchr.c>
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
+#endif
diff --git a/sysdeps/s390/multiarch/strrchr-vx.S b/sysdeps/s390/strrchr-vx.S
index 8b3b989631..5f4ac14ee3 100644
--- a/sysdeps/s390/multiarch/strrchr-vx.S
+++ b/sysdeps/s390/strrchr-vx.S
@@ -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-strrchr.h>
+
+#if HAVE_STRRCHR_Z13
 
 # include "sysdep.h"
 # include "asm-syntax.h"
@@ -39,7 +41,7 @@
    -v19=part of s with last occurence of c.
    -v20=permute pattern
 */
-ENTRY(__strrchr_vx)
+ENTRY(STRRCHR_Z13)
 	.machine "z13"
 	.machinemode "zarch_nohighgprs"
 
@@ -176,5 +178,15 @@ ENTRY(__strrchr_vx)
 .Lpermute_mask:
 	.byte	0x0F,0x0E,0x0D,0x0C,0x0B,0x0A,0x09,0x08
 	.byte	0x07,0x06,0x05,0x04,0x03,0x02,0x01,0x00
-END(__strrchr_vx)
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
+END(STRRCHR_Z13)
+
+# if ! HAVE_STRRCHR_IFUNC
+strong_alias (STRRCHR_Z13, strrchr)
+weak_alias (strrchr, rindex)
+# endif
+
+# if ! HAVE_STRRCHR_C && defined SHARED && IS_IN (libc)
+strong_alias (STRRCHR_Z13, __GI_strrchr)
+# endif
+
+#endif /* HAVE_STRRCHR_Z13  */
diff --git a/sysdeps/s390/multiarch/strrchr.c b/sysdeps/s390/strrchr.c
index e00e25a3a4..9a8cecff0b 100644
--- a/sysdeps/s390/multiarch/strrchr.c
+++ b/sysdeps/s390/strrchr.c
@@ -16,15 +16,26 @@
    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-strrchr.h>
+
+#if HAVE_STRRCHR_IFUNC
 # define strrchr __redirect_strrchr
 # include <string.h>
 # undef strrchr
 # include <ifunc-resolve.h>
 
-s390_vx_libc_ifunc2_redirected (__redirect_strrchr, __strrchr, strrchr)
-weak_alias (strrchr, rindex);
+# if HAVE_STRRCHR_C
+extern __typeof (__redirect_strrchr) STRRCHR_C attribute_hidden;
+# endif
+
+# if HAVE_STRRCHR_Z13
+extern __typeof (__redirect_strrchr) STRRCHR_Z13 attribute_hidden;
+# endif
 
-#else
-# include <string/strrchr.c>
-#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
+s390_libc_ifunc_expr (__redirect_strrchr, strrchr,
+		      (HAVE_STRRCHR_Z13 && (hwcap & HWCAP_S390_VX))
+		      ? STRRCHR_Z13
+		      : STRRCHR_DEFAULT
+		      )
+weak_alias (strrchr, rindex)
+#endif /* HAVE_STRRCHR_IFUNC  */
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-30 23:36:12 +0000