|
 |
d8307d |
commit 3389cae427b4032c3a991cb32b5178a85a652d84
|
|
|
d8307d |
Author: Stefan Liebler <stli@linux.ibm.com>
|
|
|
d8307d |
Date: Tue Dec 18 13:57:20 2018 +0100
|
|
|
d8307d |
|
|
|
d8307d |
S390: Refactor wcscat ifunc handling.
|
|
|
d8307d |
|
|
|
d8307d |
The ifunc handling for wcscat is adjusted in order to omit ifunc
|
|
|
d8307d |
if the minimum architecture level already supports newer CPUs by default.
|
|
|
d8307d |
Unfortunately the c ifunc variant can't be omitted at all as it is used
|
|
|
d8307d |
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
|
|
|
d8307d |
|
|
|
d8307d |
ChangeLog:
|
|
|
d8307d |
|
|
|
d8307d |
* sysdeps/s390/multiarch/Makefile
|
|
|
d8307d |
(sysdep_routines): Remove wcscat variants.
|
|
|
d8307d |
* sysdeps/s390/Makefile (sysdep_routines): Add wcscat variants.
|
|
|
d8307d |
* sysdeps/s390/multiarch/ifunc-impl-list.c
|
|
|
d8307d |
(__libc_ifunc_impl_list): Refactor ifunc handling for wcscat.
|
|
|
d8307d |
* sysdeps/s390/multiarch/wcscat-c.c: Move to ...
|
|
|
d8307d |
* sysdeps/s390/wcscat-c.c: ... here and adjust ifunc handling.
|
|
|
d8307d |
* sysdeps/s390/multiarch/wcscat-vx.S: Move to ...
|
|
|
d8307d |
* sysdeps/s390/wcscat-vx.S: ... here and adjust ifunc handling.
|
|
|
d8307d |
* sysdeps/s390/multiarch/wcscat.c: Move to ...
|
|
|
d8307d |
* sysdeps/s390/wcscat.c: ... here and adjust ifunc handling.
|
|
|
d8307d |
* sysdeps/s390/ifunc-wcscat.h: New file.
|
|
|
d8307d |
|
|
|
d8307d |
diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile
|
|
|
d8307d |
index 640177370382235f..5fd00ad4a8661c4c 100644
|
|
|
d8307d |
--- a/sysdeps/s390/Makefile
|
|
|
d8307d |
+++ b/sysdeps/s390/Makefile
|
|
|
d8307d |
@@ -65,5 +65,6 @@ sysdep_routines += wcslen wcslen-vx wcslen-c \
|
|
|
d8307d |
wcscpy wcscpy-vx wcscpy-c \
|
|
|
d8307d |
wcpcpy wcpcpy-vx wcpcpy-c \
|
|
|
d8307d |
wcsncpy wcsncpy-vx wcsncpy-c \
|
|
|
d8307d |
- wcpncpy wcpncpy-vx wcpncpy-c
|
|
|
d8307d |
+ wcpncpy wcpncpy-vx wcpncpy-c \
|
|
|
d8307d |
+ wcscat wcscat-vx wcscat-c
|
|
|
d8307d |
endif
|
|
|
d8307d |
diff --git a/sysdeps/s390/ifunc-wcscat.h b/sysdeps/s390/ifunc-wcscat.h
|
|
|
d8307d |
new file mode 100644
|
|
|
d8307d |
index 0000000000000000..fecae21403e4c664
|
|
|
d8307d |
--- /dev/null
|
|
|
d8307d |
+++ b/sysdeps/s390/ifunc-wcscat.h
|
|
|
d8307d |
@@ -0,0 +1,53 @@
|
|
|
d8307d |
+/* wcscat variant information on S/390 version.
|
|
|
d8307d |
+ Copyright (C) 2018 Free Software Foundation, Inc.
|
|
|
d8307d |
+ This file is part of the GNU C Library.
|
|
|
d8307d |
+
|
|
|
d8307d |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
d8307d |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
d8307d |
+ License as published by the Free Software Foundation; either
|
|
|
d8307d |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
d8307d |
+
|
|
|
d8307d |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
d8307d |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
d8307d |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
d8307d |
+ Lesser General Public License for more details.
|
|
|
d8307d |
+
|
|
|
d8307d |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
d8307d |
+ License along with the GNU C Library; if not, see
|
|
|
d8307d |
+ <http://www.gnu.org/licenses/>. */
|
|
|
d8307d |
+
|
|
|
d8307d |
+#if defined USE_MULTIARCH && IS_IN (libc) \
|
|
|
d8307d |
+ && ! defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
|
|
|
d8307d |
+# define HAVE_WCSCAT_IFUNC 1
|
|
|
d8307d |
+#else
|
|
|
d8307d |
+# define HAVE_WCSCAT_IFUNC 0
|
|
|
d8307d |
+#endif
|
|
|
d8307d |
+
|
|
|
d8307d |
+#ifdef HAVE_S390_VX_ASM_SUPPORT
|
|
|
d8307d |
+# define HAVE_WCSCAT_IFUNC_AND_VX_SUPPORT HAVE_WCSCAT_IFUNC
|
|
|
d8307d |
+#else
|
|
|
d8307d |
+# define HAVE_WCSCAT_IFUNC_AND_VX_SUPPORT 0
|
|
|
d8307d |
+#endif
|
|
|
d8307d |
+
|
|
|
d8307d |
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
|
|
|
d8307d |
+# define WCSCAT_DEFAULT WCSCAT_Z13
|
|
|
d8307d |
+/* The z13 ifunc variant is using the common code variant as fallback! */
|
|
|
d8307d |
+# define HAVE_WCSCAT_C 1
|
|
|
d8307d |
+# define HAVE_WCSCAT_Z13 1
|
|
|
d8307d |
+#else
|
|
|
d8307d |
+# define WCSCAT_DEFAULT WCSCAT_C
|
|
|
d8307d |
+# define HAVE_WCSCAT_C 1
|
|
|
d8307d |
+# define HAVE_WCSCAT_Z13 HAVE_WCSCAT_IFUNC_AND_VX_SUPPORT
|
|
|
d8307d |
+#endif
|
|
|
d8307d |
+
|
|
|
d8307d |
+#if HAVE_WCSCAT_C
|
|
|
d8307d |
+# define WCSCAT_C __wcscat_c
|
|
|
d8307d |
+#else
|
|
|
d8307d |
+# define WCSCAT_C NULL
|
|
|
d8307d |
+#endif
|
|
|
d8307d |
+
|
|
|
d8307d |
+#if HAVE_WCSCAT_Z13
|
|
|
d8307d |
+# define WCSCAT_Z13 __wcscat_vx
|
|
|
d8307d |
+#else
|
|
|
d8307d |
+# define WCSCAT_Z13 NULL
|
|
|
d8307d |
+#endif
|
|
|
d8307d |
diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
|
|
|
d8307d |
index 158fb495523438b4..617017496c79e2ca 100644
|
|
|
d8307d |
--- a/sysdeps/s390/multiarch/Makefile
|
|
|
d8307d |
+++ b/sysdeps/s390/multiarch/Makefile
|
|
|
d8307d |
@@ -1,6 +1,5 @@
|
|
|
d8307d |
ifeq ($(subdir),wcsmbs)
|
|
|
d8307d |
-sysdep_routines += wcscat wcscat-vx wcscat-c \
|
|
|
d8307d |
- wcsncat wcsncat-vx wcsncat-c \
|
|
|
d8307d |
+sysdep_routines += wcsncat wcsncat-vx wcsncat-c \
|
|
|
d8307d |
wcscmp wcscmp-vx wcscmp-c \
|
|
|
d8307d |
wcsncmp wcsncmp-vx wcsncmp-c \
|
|
|
d8307d |
wcschr wcschr-vx wcschr-c \
|
|
|
d8307d |
diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c
|
|
|
d8307d |
index e60238fcde4dcd4f..b05bd35fd898d0a6 100644
|
|
|
d8307d |
--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
|
|
|
d8307d |
+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
|
|
|
d8307d |
@@ -52,6 +52,7 @@
|
|
|
d8307d |
#include <ifunc-wcpcpy.h>
|
|
|
d8307d |
#include <ifunc-wcsncpy.h>
|
|
|
d8307d |
#include <ifunc-wcpncpy.h>
|
|
|
d8307d |
+#include <ifunc-wcscat.h>
|
|
|
d8307d |
|
|
|
d8307d |
/* Maximum number of IFUNC implementations. */
|
|
|
d8307d |
#define MAX_IFUNC 3
|
|
|
d8307d |
@@ -502,6 +503,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
|
|
|
d8307d |
)
|
|
|
d8307d |
#endif /* HAVE_WCPNCPY_IFUNC */
|
|
|
d8307d |
|
|
|
d8307d |
+#if HAVE_WCSCAT_IFUNC
|
|
|
d8307d |
+ IFUNC_IMPL (i, name, wcscat,
|
|
|
d8307d |
+# if HAVE_WCSCAT_Z13
|
|
|
d8307d |
+ IFUNC_IMPL_ADD (array, i, wcscat,
|
|
|
d8307d |
+ dl_hwcap & HWCAP_S390_VX, WCSCAT_Z13)
|
|
|
d8307d |
+# endif
|
|
|
d8307d |
+# if HAVE_WCSCAT_C
|
|
|
d8307d |
+ IFUNC_IMPL_ADD (array, i, wcscat, 1, WCSCAT_C)
|
|
|
d8307d |
+# endif
|
|
|
d8307d |
+ )
|
|
|
d8307d |
+#endif /* HAVE_WCSCAT_IFUNC */
|
|
|
d8307d |
+
|
|
|
d8307d |
#ifdef HAVE_S390_VX_ASM_SUPPORT
|
|
|
d8307d |
|
|
|
d8307d |
# define IFUNC_VX_IMPL(FUNC) \
|
|
|
d8307d |
@@ -510,8 +523,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
|
|
|
d8307d |
__##FUNC##_vx) \
|
|
|
d8307d |
IFUNC_IMPL_ADD (array, i, FUNC, 1, __##FUNC##_c))
|
|
|
d8307d |
|
|
|
d8307d |
- IFUNC_VX_IMPL (wcscat);
|
|
|
d8307d |
-
|
|
|
d8307d |
IFUNC_VX_IMPL (wcsncat);
|
|
|
d8307d |
|
|
|
d8307d |
IFUNC_VX_IMPL (wcscmp);
|
|
|
d8307d |
diff --git a/sysdeps/s390/multiarch/wcscat-c.c b/sysdeps/s390/wcscat-c.c
|
|
|
d8307d |
similarity index 86%
|
|
|
d8307d |
rename from sysdeps/s390/multiarch/wcscat-c.c
|
|
|
d8307d |
rename to sysdeps/s390/wcscat-c.c
|
|
|
d8307d |
index 9a31c65a0ba668e5..bc1a50b1a52da259 100644
|
|
|
d8307d |
--- a/sysdeps/s390/multiarch/wcscat-c.c
|
|
|
d8307d |
+++ b/sysdeps/s390/wcscat-c.c
|
|
|
d8307d |
@@ -16,10 +16,12 @@
|
|
|
d8307d |
License along with the GNU C Library; if not, see
|
|
|
d8307d |
<http://www.gnu.org/licenses/>. */
|
|
|
d8307d |
|
|
|
d8307d |
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
|
|
|
d8307d |
-# define WCSCAT __wcscat_c
|
|
|
d8307d |
+#include <ifunc-wcscat.h>
|
|
|
d8307d |
+
|
|
|
d8307d |
+#if HAVE_WCSCAT_C
|
|
|
d8307d |
+# if HAVE_WCSCAT_IFUNC || HAVE_WCSCAT_Z13
|
|
|
d8307d |
+# define WCSCAT WCSCAT_C
|
|
|
d8307d |
+# endif
|
|
|
d8307d |
|
|
|
d8307d |
-# include <wchar.h>
|
|
|
d8307d |
-extern __typeof (__wcscat) __wcscat_c;
|
|
|
d8307d |
# include <wcsmbs/wcscat.c>
|
|
|
d8307d |
#endif
|
|
|
d8307d |
diff --git a/sysdeps/s390/multiarch/wcscat-vx.S b/sysdeps/s390/wcscat-vx.S
|
|
|
d8307d |
similarity index 96%
|
|
|
d8307d |
rename from sysdeps/s390/multiarch/wcscat-vx.S
|
|
|
d8307d |
rename to sysdeps/s390/wcscat-vx.S
|
|
|
d8307d |
index 2164a8da411eadaa..4e40d69e8417d6d1 100644
|
|
|
d8307d |
--- a/sysdeps/s390/multiarch/wcscat-vx.S
|
|
|
d8307d |
+++ b/sysdeps/s390/wcscat-vx.S
|
|
|
d8307d |
@@ -16,7 +16,8 @@
|
|
|
d8307d |
License along with the GNU C Library; if not, see
|
|
|
d8307d |
<http://www.gnu.org/licenses/>. */
|
|
|
d8307d |
|
|
|
d8307d |
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
|
|
|
d8307d |
+#include <ifunc-wcscat.h>
|
|
|
d8307d |
+#if HAVE_WCSCAT_Z13
|
|
|
d8307d |
|
|
|
d8307d |
# include "sysdep.h"
|
|
|
d8307d |
# include "asm-syntax.h"
|
|
|
d8307d |
@@ -37,7 +38,7 @@
|
|
|
d8307d |
-v17=index of zero
|
|
|
d8307d |
-v18=part of src
|
|
|
d8307d |
*/
|
|
|
d8307d |
-ENTRY(__wcscat_vx)
|
|
|
d8307d |
+ENTRY(WCSCAT_Z13)
|
|
|
d8307d |
.machine "z13"
|
|
|
d8307d |
.machinemode "zarch_nohighgprs"
|
|
|
d8307d |
|
|
|
d8307d |
@@ -170,6 +171,11 @@ ENTRY(__wcscat_vx)
|
|
|
d8307d |
lgr %r2,%r0 /* Load saved dest-ptr. */
|
|
|
d8307d |
br %r14
|
|
|
d8307d |
.Lfallback:
|
|
|
d8307d |
- jg __wcscat_c
|
|
|
d8307d |
-END(__wcscat_vx)
|
|
|
d8307d |
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
|
|
|
d8307d |
+ jg WCSCAT_C
|
|
|
d8307d |
+END(WCSCAT_Z13)
|
|
|
d8307d |
+
|
|
|
d8307d |
+# if ! HAVE_WCSCAT_IFUNC
|
|
|
d8307d |
+strong_alias (WCSCAT_Z13, __wcscat)
|
|
|
d8307d |
+weak_alias (__wcscat, wcscat)
|
|
|
d8307d |
+# endif
|
|
|
d8307d |
+#endif
|
|
|
d8307d |
diff --git a/sysdeps/s390/multiarch/wcscat.c b/sysdeps/s390/wcscat.c
|
|
|
d8307d |
similarity index 70%
|
|
|
d8307d |
rename from sysdeps/s390/multiarch/wcscat.c
|
|
|
d8307d |
rename to sysdeps/s390/wcscat.c
|
|
|
d8307d |
index 33e4f6da3ff8eea7..3741210a177f8029 100644
|
|
|
d8307d |
--- a/sysdeps/s390/multiarch/wcscat.c
|
|
|
d8307d |
+++ b/sysdeps/s390/wcscat.c
|
|
|
d8307d |
@@ -16,13 +16,24 @@
|
|
|
d8307d |
License along with the GNU C Library; if not, see
|
|
|
d8307d |
<http://www.gnu.org/licenses/>. */
|
|
|
d8307d |
|
|
|
d8307d |
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
|
|
|
d8307d |
+#include <ifunc-wcscat.h>
|
|
|
d8307d |
+
|
|
|
d8307d |
+#if HAVE_WCSCAT_IFUNC
|
|
|
d8307d |
# include <wchar.h>
|
|
|
d8307d |
# include <ifunc-resolve.h>
|
|
|
d8307d |
|
|
|
d8307d |
-s390_vx_libc_ifunc (__wcscat)
|
|
|
d8307d |
-weak_alias (__wcscat, wcscat)
|
|
|
d8307d |
+# if HAVE_WCSCAT_C
|
|
|
d8307d |
+extern __typeof (__wcscat) WCSCAT_C attribute_hidden;
|
|
|
d8307d |
+# endif
|
|
|
d8307d |
|
|
|
d8307d |
-#else
|
|
|
d8307d |
-# include <wcsmbs/wcscat.c>
|
|
|
d8307d |
-#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
|
|
|
d8307d |
+# if HAVE_WCSCAT_Z13
|
|
|
d8307d |
+extern __typeof (__wcscat) WCSCAT_Z13 attribute_hidden;
|
|
|
d8307d |
+# endif
|
|
|
d8307d |
+
|
|
|
d8307d |
+s390_libc_ifunc_expr (__wcscat, __wcscat,
|
|
|
d8307d |
+ (HAVE_WCSCAT_Z13 && (hwcap & HWCAP_S390_VX))
|
|
|
d8307d |
+ ? WCSCAT_Z13
|
|
|
d8307d |
+ : WCSCAT_DEFAULT
|
|
|
d8307d |
+ )
|
|
|
d8307d |
+weak_alias (__wcscat, wcscat)
|
|
|
d8307d |
+#endif
|