|
|
077c9d |
commit a1361e65617c660a3ba7d561e081dcd18762a688
|
|
|
077c9d |
Author: Stefan Liebler <stli@linux.ibm.com>
|
|
|
077c9d |
Date: Tue Dec 18 13:57:14 2018 +0100
|
|
|
077c9d |
|
|
|
077c9d |
S390: Refactor strchrnul ifunc handling.
|
|
|
077c9d |
|
|
|
077c9d |
The ifunc handling for strchrnul is adjusted in order to omit ifunc
|
|
|
077c9d |
variants if those will never be used as the minimum architecture level
|
|
|
077c9d |
already supports newer CPUs by default.
|
|
|
077c9d |
|
|
|
077c9d |
ChangeLog:
|
|
|
077c9d |
|
|
|
077c9d |
* sysdeps/s390/multiarch/Makefile
|
|
|
077c9d |
(sysdep_routines): Remove strchrnul variants.
|
|
|
077c9d |
* sysdeps/s390/Makefile (sysdep_routines): Add strchrnul variants.
|
|
|
077c9d |
* sysdeps/s390/multiarch/ifunc-impl-list.c
|
|
|
077c9d |
(__libc_ifunc_impl_list): Refactor ifunc handling for strchrnul.
|
|
|
077c9d |
* sysdeps/s390/multiarch/strchrnul-c.c: Move to ...
|
|
|
077c9d |
* sysdeps/s390/strchrnul-c.c: ... here and adjust ifunc handling.
|
|
|
077c9d |
* sysdeps/s390/multiarch/strchrnul-vx.S: Move to ...
|
|
|
077c9d |
* sysdeps/s390/strchrnul-vx.S: ... here and adjust ifunc handling.
|
|
|
077c9d |
* sysdeps/s390/multiarch/strchrnul.c: Move to ...
|
|
|
077c9d |
* sysdeps/s390/strchrnul.c: ... here and adjust ifunc handling.
|
|
|
077c9d |
* sysdeps/s390/ifunc-strchrnul.h: New file.
|
|
|
077c9d |
|
|
|
077c9d |
diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile
|
|
|
077c9d |
index 8bb396f498e0b0b0..c54bb82f4d4f8a67 100644
|
|
|
077c9d |
--- a/sysdeps/s390/Makefile
|
|
|
077c9d |
+++ b/sysdeps/s390/Makefile
|
|
|
077c9d |
@@ -47,5 +47,6 @@ sysdep_routines += bzero memset memset-z900 \
|
|
|
077c9d |
strncat strncat-vx strncat-c \
|
|
|
077c9d |
strcmp strcmp-vx strcmp-z900 \
|
|
|
077c9d |
strncmp strncmp-vx strncmp-c \
|
|
|
077c9d |
- strchr strchr-vx strchr-c
|
|
|
077c9d |
+ strchr strchr-vx strchr-c \
|
|
|
077c9d |
+ strchrnul strchrnul-vx strchrnul-c
|
|
|
077c9d |
endif
|
|
|
077c9d |
diff --git a/sysdeps/s390/ifunc-strchrnul.h b/sysdeps/s390/ifunc-strchrnul.h
|
|
|
077c9d |
new file mode 100644
|
|
|
077c9d |
index 0000000000000000..cac817e6f0a9406d
|
|
|
077c9d |
--- /dev/null
|
|
|
077c9d |
+++ b/sysdeps/s390/ifunc-strchrnul.h
|
|
|
077c9d |
@@ -0,0 +1,52 @@
|
|
|
077c9d |
+/* strchrnul 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_STRCHRNUL_IFUNC 1
|
|
|
077c9d |
+#else
|
|
|
077c9d |
+# define HAVE_STRCHRNUL_IFUNC 0
|
|
|
077c9d |
+#endif
|
|
|
077c9d |
+
|
|
|
077c9d |
+#ifdef HAVE_S390_VX_ASM_SUPPORT
|
|
|
077c9d |
+# define HAVE_STRCHRNUL_IFUNC_AND_VX_SUPPORT HAVE_STRCHRNUL_IFUNC
|
|
|
077c9d |
+#else
|
|
|
077c9d |
+# define HAVE_STRCHRNUL_IFUNC_AND_VX_SUPPORT 0
|
|
|
077c9d |
+#endif
|
|
|
077c9d |
+
|
|
|
077c9d |
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
|
|
|
077c9d |
+# define STRCHRNUL_DEFAULT STRCHRNUL_Z13
|
|
|
077c9d |
+# define HAVE_STRCHRNUL_C 0
|
|
|
077c9d |
+# define HAVE_STRCHRNUL_Z13 1
|
|
|
077c9d |
+#else
|
|
|
077c9d |
+# define STRCHRNUL_DEFAULT STRCHRNUL_C
|
|
|
077c9d |
+# define HAVE_STRCHRNUL_C 1
|
|
|
077c9d |
+# define HAVE_STRCHRNUL_Z13 HAVE_STRCHRNUL_IFUNC_AND_VX_SUPPORT
|
|
|
077c9d |
+#endif
|
|
|
077c9d |
+
|
|
|
077c9d |
+#if HAVE_STRCHRNUL_C
|
|
|
077c9d |
+# define STRCHRNUL_C __strchrnul_c
|
|
|
077c9d |
+#else
|
|
|
077c9d |
+# define STRCHRNUL_C NULL
|
|
|
077c9d |
+#endif
|
|
|
077c9d |
+
|
|
|
077c9d |
+#if HAVE_STRCHRNUL_Z13
|
|
|
077c9d |
+# define STRCHRNUL_Z13 __strchrnul_vx
|
|
|
077c9d |
+#else
|
|
|
077c9d |
+# define STRCHRNUL_Z13 NULL
|
|
|
077c9d |
+#endif
|
|
|
077c9d |
diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
|
|
|
077c9d |
index a8e9d0acd9ebf986..999a979fee1417b2 100644
|
|
|
077c9d |
--- a/sysdeps/s390/multiarch/Makefile
|
|
|
077c9d |
+++ b/sysdeps/s390/multiarch/Makefile
|
|
|
077c9d |
@@ -1,6 +1,5 @@
|
|
|
077c9d |
ifeq ($(subdir),string)
|
|
|
077c9d |
-sysdep_routines += strchrnul strchrnul-vx strchrnul-c \
|
|
|
077c9d |
- strrchr strrchr-vx strrchr-c \
|
|
|
077c9d |
+sysdep_routines += strrchr strrchr-vx strrchr-c \
|
|
|
077c9d |
strspn strspn-vx strspn-c \
|
|
|
077c9d |
strpbrk strpbrk-vx strpbrk-c \
|
|
|
077c9d |
strcspn strcspn-vx strcspn-c \
|
|
|
077c9d |
diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c
|
|
|
077c9d |
index e809ca3bacb18aa9..0a47ffeac3492b3e 100644
|
|
|
077c9d |
--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
|
|
|
077c9d |
+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
|
|
|
077c9d |
@@ -37,6 +37,7 @@
|
|
|
077c9d |
#include <ifunc-strcmp.h>
|
|
|
077c9d |
#include <ifunc-strncmp.h>
|
|
|
077c9d |
#include <ifunc-strchr.h>
|
|
|
077c9d |
+#include <ifunc-strchrnul.h>
|
|
|
077c9d |
|
|
|
077c9d |
/* Maximum number of IFUNC implementations. */
|
|
|
077c9d |
#define MAX_IFUNC 3
|
|
|
077c9d |
@@ -307,6 +308,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
|
|
|
077c9d |
)
|
|
|
077c9d |
#endif /* HAVE_STRCHR_IFUNC */
|
|
|
077c9d |
|
|
|
077c9d |
+#if HAVE_STRCHRNUL_IFUNC
|
|
|
077c9d |
+ IFUNC_IMPL (i, name, strchrnul,
|
|
|
077c9d |
+# if HAVE_STRCHRNUL_Z13
|
|
|
077c9d |
+ IFUNC_IMPL_ADD (array, i, strchrnul,
|
|
|
077c9d |
+ dl_hwcap & HWCAP_S390_VX, STRCHRNUL_Z13)
|
|
|
077c9d |
+# endif
|
|
|
077c9d |
+# if HAVE_STRCHRNUL_C
|
|
|
077c9d |
+ IFUNC_IMPL_ADD (array, i, strchrnul, 1, STRCHRNUL_C)
|
|
|
077c9d |
+# endif
|
|
|
077c9d |
+ )
|
|
|
077c9d |
+#endif /* HAVE_STRCHRNUL_IFUNC */
|
|
|
077c9d |
+
|
|
|
077c9d |
#ifdef HAVE_S390_VX_ASM_SUPPORT
|
|
|
077c9d |
|
|
|
077c9d |
# define IFUNC_VX_IMPL(FUNC) \
|
|
|
077c9d |
@@ -337,7 +350,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
|
|
|
077c9d |
|
|
|
077c9d |
IFUNC_VX_IMPL (wcschr);
|
|
|
077c9d |
|
|
|
077c9d |
- IFUNC_VX_IMPL (strchrnul);
|
|
|
077c9d |
IFUNC_VX_IMPL (wcschrnul);
|
|
|
077c9d |
|
|
|
077c9d |
IFUNC_VX_IMPL (strrchr);
|
|
|
077c9d |
diff --git a/sysdeps/s390/multiarch/strchrnul-c.c b/sysdeps/s390/strchrnul-c.c
|
|
|
077c9d |
similarity index 81%
|
|
|
077c9d |
rename from sysdeps/s390/multiarch/strchrnul-c.c
|
|
|
077c9d |
rename to sysdeps/s390/strchrnul-c.c
|
|
|
077c9d |
index 020cebcf3e275b07..585273f5de8b82bc 100644
|
|
|
077c9d |
--- a/sysdeps/s390/multiarch/strchrnul-c.c
|
|
|
077c9d |
+++ b/sysdeps/s390/strchrnul-c.c
|
|
|
077c9d |
@@ -16,11 +16,15 @@
|
|
|
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 STRCHRNUL __strchrnul_c
|
|
|
077c9d |
-# define __strchrnul STRCHRNUL
|
|
|
077c9d |
-# undef weak_alias
|
|
|
077c9d |
-# define weak_alias(name, alias)
|
|
|
077c9d |
+#include <ifunc-strchrnul.h>
|
|
|
077c9d |
+
|
|
|
077c9d |
+#if HAVE_STRCHRNUL_C
|
|
|
077c9d |
+# if HAVE_STRCHRNUL_IFUNC
|
|
|
077c9d |
+# define STRCHRNUL STRCHRNUL_C
|
|
|
077c9d |
+# define __strchrnul STRCHRNUL
|
|
|
077c9d |
+# undef weak_alias
|
|
|
077c9d |
+# define weak_alias(name, alias)
|
|
|
077c9d |
+# endif
|
|
|
077c9d |
|
|
|
077c9d |
# include <string/strchrnul.c>
|
|
|
077c9d |
#endif
|
|
|
077c9d |
diff --git a/sysdeps/s390/multiarch/strchrnul-vx.S b/sysdeps/s390/strchrnul-vx.S
|
|
|
077c9d |
similarity index 91%
|
|
|
077c9d |
rename from sysdeps/s390/multiarch/strchrnul-vx.S
|
|
|
077c9d |
rename to sysdeps/s390/strchrnul-vx.S
|
|
|
077c9d |
index d561825e0432458c..0cd587bc32cf811f 100644
|
|
|
077c9d |
--- a/sysdeps/s390/multiarch/strchrnul-vx.S
|
|
|
077c9d |
+++ b/sysdeps/s390/strchrnul-vx.S
|
|
|
077c9d |
@@ -16,7 +16,9 @@
|
|
|
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-strchrnul.h>
|
|
|
077c9d |
+
|
|
|
077c9d |
+#if HAVE_STRCHRNUL_Z13
|
|
|
077c9d |
|
|
|
077c9d |
# include "sysdep.h"
|
|
|
077c9d |
# include "asm-syntax.h"
|
|
|
077c9d |
@@ -35,7 +37,7 @@
|
|
|
077c9d |
-v16=part of s
|
|
|
077c9d |
-v18=vector with c replicated in every byte
|
|
|
077c9d |
*/
|
|
|
077c9d |
-ENTRY(__strchrnul_vx)
|
|
|
077c9d |
+ENTRY(STRCHRNUL_Z13)
|
|
|
077c9d |
.machine "z13"
|
|
|
077c9d |
.machinemode "zarch_nohighgprs"
|
|
|
077c9d |
|
|
|
077c9d |
@@ -89,5 +91,11 @@ ENTRY(__strchrnul_vx)
|
|
|
077c9d |
|
|
|
077c9d |
.Lend:
|
|
|
077c9d |
br %r14
|
|
|
077c9d |
-END(__strchrnul_vx)
|
|
|
077c9d |
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
|
|
|
077c9d |
+END(STRCHRNUL_Z13)
|
|
|
077c9d |
+
|
|
|
077c9d |
+# if ! HAVE_STRCHRNUL_IFUNC
|
|
|
077c9d |
+strong_alias (STRCHRNUL_Z13, __strchrnul)
|
|
|
077c9d |
+weak_alias (__strchrnul, strchrnul)
|
|
|
077c9d |
+# endif
|
|
|
077c9d |
+
|
|
|
077c9d |
+#endif /* HAVE_STRCHRNUL_Z13 */
|
|
|
077c9d |
diff --git a/sysdeps/s390/multiarch/strchrnul.c b/sysdeps/s390/strchrnul.c
|
|
|
077c9d |
similarity index 67%
|
|
|
077c9d |
rename from sysdeps/s390/multiarch/strchrnul.c
|
|
|
077c9d |
rename to sysdeps/s390/strchrnul.c
|
|
|
077c9d |
index 62dfc6bd90638b60..e9fefe1bdc77f038 100644
|
|
|
077c9d |
--- a/sysdeps/s390/multiarch/strchrnul.c
|
|
|
077c9d |
+++ b/sysdeps/s390/strchrnul.c
|
|
|
077c9d |
@@ -16,13 +16,24 @@
|
|
|
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-strchrnul.h>
|
|
|
077c9d |
+
|
|
|
077c9d |
+#if HAVE_STRCHRNUL_IFUNC
|
|
|
077c9d |
# include <string.h>
|
|
|
077c9d |
# include <ifunc-resolve.h>
|
|
|
077c9d |
|
|
|
077c9d |
-s390_vx_libc_ifunc (__strchrnul)
|
|
|
077c9d |
-weak_alias (__strchrnul, strchrnul)
|
|
|
077c9d |
+# if HAVE_STRCHRNUL_C
|
|
|
077c9d |
+extern __typeof (__strchrnul) STRCHRNUL_C attribute_hidden;
|
|
|
077c9d |
+# endif
|
|
|
077c9d |
|
|
|
077c9d |
-#else
|
|
|
077c9d |
-# include <string/strchrnul.c>
|
|
|
077c9d |
-#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
|
|
|
077c9d |
+# if HAVE_STRCHRNUL_Z13
|
|
|
077c9d |
+extern __typeof (__strchrnul) STRCHRNUL_Z13 attribute_hidden;
|
|
|
077c9d |
+# endif
|
|
|
077c9d |
+
|
|
|
077c9d |
+s390_libc_ifunc_expr (__strchrnul, __strchrnul,
|
|
|
077c9d |
+ (HAVE_STRCHRNUL_Z13 && (hwcap & HWCAP_S390_VX))
|
|
|
077c9d |
+ ? STRCHRNUL_Z13
|
|
|
077c9d |
+ : STRCHRNUL_DEFAULT
|
|
|
077c9d |
+ )
|
|
|
077c9d |
+weak_alias (__strchrnul, strchrnul)
|
|
|
077c9d |
+#endif /* HAVE_STRCHRNUL_IFUNC */
|