|
 |
077c9d |
commit 4753713aaed400d88cfc598e25d504478120b065
|
|
|
077c9d |
Author: Stefan Liebler <stli@linux.ibm.com>
|
|
|
077c9d |
Date: Tue Dec 18 13:57:22 2018 +0100
|
|
|
077c9d |
|
|
|
077c9d |
S390: Refactor wcsrchr ifunc handling.
|
|
|
077c9d |
|
|
|
077c9d |
The ifunc handling for wcsrchr is adjusted in order to omit ifunc
|
|
|
077c9d |
if the minimum architecture level already supports newer CPUs by default.
|
|
|
077c9d |
Unfortunately the c ifunc variant can't be omitted at all as it is used
|
|
|
077c9d |
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
|
|
|
077c9d |
|
|
|
077c9d |
ChangeLog:
|
|
|
077c9d |
|
|
|
077c9d |
* sysdeps/s390/multiarch/Makefile
|
|
|
077c9d |
(sysdep_routines): Remove wcsrchr variants.
|
|
|
077c9d |
* sysdeps/s390/Makefile (sysdep_routines): Add wcsrchr variants.
|
|
|
077c9d |
* sysdeps/s390/multiarch/ifunc-impl-list.c
|
|
|
077c9d |
(__libc_ifunc_impl_list): Refactor ifunc handling for wcsrchr.
|
|
|
077c9d |
* sysdeps/s390/multiarch/wcsrchr-c.c: Move to ...
|
|
|
077c9d |
* sysdeps/s390/wcsrchr-c.c: ... here and adjust ifunc handling.
|
|
|
077c9d |
* sysdeps/s390/multiarch/wcsrchr-vx.S: Move to ...
|
|
|
077c9d |
* sysdeps/s390/wcsrchr-vx.S: ... here and adjust ifunc handling.
|
|
|
077c9d |
* sysdeps/s390/multiarch/wcsrchr.c: Move to ...
|
|
|
077c9d |
* sysdeps/s390/wcsrchr.c: ... here and adjust ifunc handling.
|
|
|
077c9d |
* sysdeps/s390/ifunc-wcsrchr.h: New file.
|
|
|
077c9d |
|
|
|
077c9d |
diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile
|
|
|
077c9d |
index a6ebf11ad1913cc4..19a556eccf285e2f 100644
|
|
|
077c9d |
--- a/sysdeps/s390/Makefile
|
|
|
077c9d |
+++ b/sysdeps/s390/Makefile
|
|
|
077c9d |
@@ -71,5 +71,6 @@ sysdep_routines += wcslen wcslen-vx wcslen-c \
|
|
|
077c9d |
wcscmp wcscmp-vx wcscmp-c \
|
|
|
077c9d |
wcsncmp wcsncmp-vx wcsncmp-c \
|
|
|
077c9d |
wcschr wcschr-vx wcschr-c \
|
|
|
077c9d |
- wcschrnul wcschrnul-vx wcschrnul-c
|
|
|
077c9d |
+ wcschrnul wcschrnul-vx wcschrnul-c \
|
|
|
077c9d |
+ wcsrchr wcsrchr-vx wcsrchr-c
|
|
|
077c9d |
endif
|
|
|
077c9d |
diff --git a/sysdeps/s390/ifunc-wcsrchr.h b/sysdeps/s390/ifunc-wcsrchr.h
|
|
|
077c9d |
new file mode 100644
|
|
|
077c9d |
index 0000000000000000..4eec0c17074c99fc
|
|
|
077c9d |
--- /dev/null
|
|
|
077c9d |
+++ b/sysdeps/s390/ifunc-wcsrchr.h
|
|
|
077c9d |
@@ -0,0 +1,53 @@
|
|
|
077c9d |
+/* wcsrchr variant information on S/390 version.
|
|
|
077c9d |
+ Copyright (C) 2018 Free Software Foundation, Inc.
|
|
|
077c9d |
+ This file is part of the GNU C Library.
|
|
|
077c9d |
+
|
|
|
077c9d |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
077c9d |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
077c9d |
+ License as published by the Free Software Foundation; either
|
|
|
077c9d |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
077c9d |
+
|
|
|
077c9d |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
077c9d |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
077c9d |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
077c9d |
+ Lesser General Public License for more details.
|
|
|
077c9d |
+
|
|
|
077c9d |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
077c9d |
+ License along with the GNU C Library; if not, see
|
|
|
077c9d |
+ <http://www.gnu.org/licenses/>. */
|
|
|
077c9d |
+
|
|
|
077c9d |
+#if defined USE_MULTIARCH && IS_IN (libc) \
|
|
|
077c9d |
+ && ! defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
|
|
|
077c9d |
+# define HAVE_WCSRCHR_IFUNC 1
|
|
|
077c9d |
+#else
|
|
|
077c9d |
+# define HAVE_WCSRCHR_IFUNC 0
|
|
|
077c9d |
+#endif
|
|
|
077c9d |
+
|
|
|
077c9d |
+#ifdef HAVE_S390_VX_ASM_SUPPORT
|
|
|
077c9d |
+# define HAVE_WCSRCHR_IFUNC_AND_VX_SUPPORT HAVE_WCSRCHR_IFUNC
|
|
|
077c9d |
+#else
|
|
|
077c9d |
+# define HAVE_WCSRCHR_IFUNC_AND_VX_SUPPORT 0
|
|
|
077c9d |
+#endif
|
|
|
077c9d |
+
|
|
|
077c9d |
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
|
|
|
077c9d |
+# define WCSRCHR_DEFAULT WCSRCHR_Z13
|
|
|
077c9d |
+/* The z13 ifunc variant is using the common code variant as fallback! */
|
|
|
077c9d |
+# define HAVE_WCSRCHR_C 1
|
|
|
077c9d |
+# define HAVE_WCSRCHR_Z13 1
|
|
|
077c9d |
+#else
|
|
|
077c9d |
+# define WCSRCHR_DEFAULT WCSRCHR_C
|
|
|
077c9d |
+# define HAVE_WCSRCHR_C 1
|
|
|
077c9d |
+# define HAVE_WCSRCHR_Z13 HAVE_WCSRCHR_IFUNC_AND_VX_SUPPORT
|
|
|
077c9d |
+#endif
|
|
|
077c9d |
+
|
|
|
077c9d |
+#if HAVE_WCSRCHR_C
|
|
|
077c9d |
+# define WCSRCHR_C __wcsrchr_c
|
|
|
077c9d |
+#else
|
|
|
077c9d |
+# define WCSRCHR_C NULL
|
|
|
077c9d |
+#endif
|
|
|
077c9d |
+
|
|
|
077c9d |
+#if HAVE_WCSRCHR_Z13
|
|
|
077c9d |
+# define WCSRCHR_Z13 __wcsrchr_vx
|
|
|
077c9d |
+#else
|
|
|
077c9d |
+# define WCSRCHR_Z13 NULL
|
|
|
077c9d |
+#endif
|
|
|
077c9d |
diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
|
|
|
077c9d |
index 0eb01d5d84c60408..3d72cbb5f32e68f3 100644
|
|
|
077c9d |
--- a/sysdeps/s390/multiarch/Makefile
|
|
|
077c9d |
+++ b/sysdeps/s390/multiarch/Makefile
|
|
|
077c9d |
@@ -1,6 +1,5 @@
|
|
|
077c9d |
ifeq ($(subdir),wcsmbs)
|
|
|
077c9d |
-sysdep_routines += wcsrchr wcsrchr-vx wcsrchr-c \
|
|
|
077c9d |
- wcsspn wcsspn-vx wcsspn-c \
|
|
|
077c9d |
+sysdep_routines += wcsspn wcsspn-vx wcsspn-c \
|
|
|
077c9d |
wcspbrk wcspbrk-vx wcspbrk-c \
|
|
|
077c9d |
wcscspn wcscspn-vx wcscspn-c \
|
|
|
077c9d |
wmemchr wmemchr-vx wmemchr-c \
|
|
|
077c9d |
diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c
|
|
|
077c9d |
index 553a76c39ecc87ae..ffb4d5b6872ef9db 100644
|
|
|
077c9d |
--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
|
|
|
077c9d |
+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
|
|
|
077c9d |
@@ -58,6 +58,7 @@
|
|
|
077c9d |
#include <ifunc-wcsncmp.h>
|
|
|
077c9d |
#include <ifunc-wcschr.h>
|
|
|
077c9d |
#include <ifunc-wcschrnul.h>
|
|
|
077c9d |
+#include <ifunc-wcsrchr.h>
|
|
|
077c9d |
|
|
|
077c9d |
/* Maximum number of IFUNC implementations. */
|
|
|
077c9d |
#define MAX_IFUNC 3
|
|
|
077c9d |
@@ -580,6 +581,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
|
|
|
077c9d |
)
|
|
|
077c9d |
#endif /* HAVE_WCSCHRNUL_IFUNC */
|
|
|
077c9d |
|
|
|
077c9d |
+#if HAVE_WCSRCHR_IFUNC
|
|
|
077c9d |
+ IFUNC_IMPL (i, name, wcsrchr,
|
|
|
077c9d |
+# if HAVE_WCSRCHR_Z13
|
|
|
077c9d |
+ IFUNC_IMPL_ADD (array, i, wcsrchr,
|
|
|
077c9d |
+ dl_hwcap & HWCAP_S390_VX, WCSRCHR_Z13)
|
|
|
077c9d |
+# endif
|
|
|
077c9d |
+# if HAVE_WCSRCHR_C
|
|
|
077c9d |
+ IFUNC_IMPL_ADD (array, i, wcsrchr, 1, WCSRCHR_C)
|
|
|
077c9d |
+# endif
|
|
|
077c9d |
+ )
|
|
|
077c9d |
+#endif /* HAVE_WCSRCHR_IFUNC */
|
|
|
077c9d |
+
|
|
|
077c9d |
#ifdef HAVE_S390_VX_ASM_SUPPORT
|
|
|
077c9d |
|
|
|
077c9d |
# define IFUNC_VX_IMPL(FUNC) \
|
|
|
077c9d |
@@ -588,8 +601,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
|
|
|
077c9d |
__##FUNC##_vx) \
|
|
|
077c9d |
IFUNC_IMPL_ADD (array, i, FUNC, 1, __##FUNC##_c))
|
|
|
077c9d |
|
|
|
077c9d |
- IFUNC_VX_IMPL (wcsrchr);
|
|
|
077c9d |
-
|
|
|
077c9d |
IFUNC_VX_IMPL (wcsspn);
|
|
|
077c9d |
|
|
|
077c9d |
IFUNC_VX_IMPL (wcspbrk);
|
|
|
077c9d |
diff --git a/sysdeps/s390/multiarch/wcsrchr-c.c b/sysdeps/s390/wcsrchr-c.c
|
|
|
077c9d |
similarity index 85%
|
|
|
077c9d |
rename from sysdeps/s390/multiarch/wcsrchr-c.c
|
|
|
077c9d |
rename to sysdeps/s390/wcsrchr-c.c
|
|
|
077c9d |
index 615250358ba9c00a..65164a897fb773f7 100644
|
|
|
077c9d |
--- a/sysdeps/s390/multiarch/wcsrchr-c.c
|
|
|
077c9d |
+++ b/sysdeps/s390/wcsrchr-c.c
|
|
|
077c9d |
@@ -16,10 +16,12 @@
|
|
|
077c9d |
License along with the GNU C Library; if not, see
|
|
|
077c9d |
<http://www.gnu.org/licenses/>. */
|
|
|
077c9d |
|
|
|
077c9d |
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
|
|
|
077c9d |
-# define WCSRCHR __wcsrchr_c
|
|
|
077c9d |
+#include <ifunc-wcsrchr.h>
|
|
|
077c9d |
+
|
|
|
077c9d |
+#if HAVE_WCSRCHR_C
|
|
|
077c9d |
+# if HAVE_WCSRCHR_IFUNC || HAVE_WCSRCHR_Z13
|
|
|
077c9d |
+# define WCSRCHR WCSRCHR_C
|
|
|
077c9d |
+# endif
|
|
|
077c9d |
|
|
|
077c9d |
-# include <wchar.h>
|
|
|
077c9d |
-extern __typeof (wcsrchr) __wcsrchr_c;
|
|
|
077c9d |
# include <wcsmbs/wcsrchr.c>
|
|
|
077c9d |
#endif
|
|
|
077c9d |
diff --git a/sysdeps/s390/multiarch/wcsrchr-vx.S b/sysdeps/s390/wcsrchr-vx.S
|
|
|
077c9d |
similarity index 97%
|
|
|
077c9d |
rename from sysdeps/s390/multiarch/wcsrchr-vx.S
|
|
|
077c9d |
rename to sysdeps/s390/wcsrchr-vx.S
|
|
|
077c9d |
index e40a554e5d9a216d..c7b6585beaeaef53 100644
|
|
|
077c9d |
--- a/sysdeps/s390/multiarch/wcsrchr-vx.S
|
|
|
077c9d |
+++ b/sysdeps/s390/wcsrchr-vx.S
|
|
|
077c9d |
@@ -16,7 +16,8 @@
|
|
|
077c9d |
License along with the GNU C Library; if not, see
|
|
|
077c9d |
<http://www.gnu.org/licenses/>. */
|
|
|
077c9d |
|
|
|
077c9d |
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
|
|
|
077c9d |
+#include <ifunc-wcsrchr.h>
|
|
|
077c9d |
+#if HAVE_WCSRCHR_Z13
|
|
|
077c9d |
|
|
|
077c9d |
# include "sysdep.h"
|
|
|
077c9d |
# include "asm-syntax.h"
|
|
|
077c9d |
@@ -39,7 +40,7 @@
|
|
|
077c9d |
-v19=part of s with last occurence of c.
|
|
|
077c9d |
-v20=permute pattern
|
|
|
077c9d |
*/
|
|
|
077c9d |
-ENTRY(__wcsrchr_vx)
|
|
|
077c9d |
+ENTRY(WCSRCHR_Z13)
|
|
|
077c9d |
.machine "z13"
|
|
|
077c9d |
.machinemode "zarch_nohighgprs"
|
|
|
077c9d |
|
|
|
077c9d |
@@ -185,6 +186,10 @@ ENTRY(__wcsrchr_vx)
|
|
|
077c9d |
.byte 0x0C,0x0D,0x0E,0x0F,0x08,0x09,0x0A,0x0B
|
|
|
077c9d |
.byte 0x04,0x05,0x06,0x07,0x00,0x01,0x02,0x03
|
|
|
077c9d |
.Lfallback:
|
|
|
077c9d |
- jg __wcsrchr_c
|
|
|
077c9d |
-END(__wcsrchr_vx)
|
|
|
077c9d |
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
|
|
|
077c9d |
+ jg WCSRCHR_C
|
|
|
077c9d |
+END(WCSRCHR_Z13)
|
|
|
077c9d |
+
|
|
|
077c9d |
+# if ! HAVE_WCSRCHR_IFUNC
|
|
|
077c9d |
+strong_alias (WCSRCHR_Z13, wcsrchr)
|
|
|
077c9d |
+# endif
|
|
|
077c9d |
+#endif
|
|
|
077c9d |
diff --git a/sysdeps/s390/multiarch/wcsrchr.c b/sysdeps/s390/wcsrchr.c
|
|
|
077c9d |
similarity index 69%
|
|
|
077c9d |
rename from sysdeps/s390/multiarch/wcsrchr.c
|
|
|
077c9d |
rename to sysdeps/s390/wcsrchr.c
|
|
|
077c9d |
index aa0b8a8f82545f64..eb70f270383880f2 100644
|
|
|
077c9d |
--- a/sysdeps/s390/multiarch/wcsrchr.c
|
|
|
077c9d |
+++ b/sysdeps/s390/wcsrchr.c
|
|
|
077c9d |
@@ -16,12 +16,23 @@
|
|
|
077c9d |
License along with the GNU C Library; if not, see
|
|
|
077c9d |
<http://www.gnu.org/licenses/>. */
|
|
|
077c9d |
|
|
|
077c9d |
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
|
|
|
077c9d |
+#include <ifunc-wcsrchr.h>
|
|
|
077c9d |
+
|
|
|
077c9d |
+#if HAVE_WCSRCHR_IFUNC
|
|
|
077c9d |
# include <wchar.h>
|
|
|
077c9d |
# include <ifunc-resolve.h>
|
|
|
077c9d |
|
|
|
077c9d |
-s390_vx_libc_ifunc2 (__wcsrchr, wcsrchr)
|
|
|
077c9d |
+# if HAVE_WCSRCHR_C
|
|
|
077c9d |
+extern __typeof (wcsrchr) WCSRCHR_C attribute_hidden;
|
|
|
077c9d |
+# endif
|
|
|
077c9d |
+
|
|
|
077c9d |
+# if HAVE_WCSRCHR_Z13
|
|
|
077c9d |
+extern __typeof (wcsrchr) WCSRCHR_Z13 attribute_hidden;
|
|
|
077c9d |
+# endif
|
|
|
077c9d |
|
|
|
077c9d |
-#else
|
|
|
077c9d |
-# include <wcsmbs/wcsrchr.c>
|
|
|
077c9d |
-#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
|
|
|
077c9d |
+s390_libc_ifunc_expr (wcsrchr, wcsrchr,
|
|
|
077c9d |
+ (HAVE_WCSRCHR_Z13 && (hwcap & HWCAP_S390_VX))
|
|
|
077c9d |
+ ? WCSRCHR_Z13
|
|
|
077c9d |
+ : WCSRCHR_DEFAULT
|
|
|
077c9d |
+ )
|
|
|
077c9d |
+#endif
|