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-rw-r--r--ChangeLog15
-rw-r--r--sysdeps/s390/Makefile3
-rw-r--r--sysdeps/s390/ifunc-strncat.h52
-rw-r--r--sysdeps/s390/multiarch/Makefile3
-rw-r--r--sysdeps/s390/multiarch/ifunc-impl-list.c14
-rw-r--r--sysdeps/s390/strncat-c.c (renamed from sysdeps/s390/multiarch/strncat-c.c)10
-rw-r--r--sysdeps/s390/strncat-vx.S (renamed from sysdeps/s390/multiarch/strncat-vx.S)21
-rw-r--r--sysdeps/s390/strncat.c (renamed from sysdeps/s390/multiarch/strncat.c)21
8 files changed, 123 insertions, 16 deletions
diff --git a/ChangeLog b/ChangeLog
index 796a37709b..3ba8beb4f8 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 strncat variants.
+ * sysdeps/s390/Makefile (sysdep_routines): Add strncat variants.
+ * sysdeps/s390/multiarch/ifunc-impl-list.c
+ (__libc_ifunc_impl_list): Refactor ifunc handling for strncat.
+ * sysdeps/s390/multiarch/strncat-c.c: Move to ...
+ * sysdeps/s390/strncat-c.c: ... here and adjust ifunc handling.
+ * sysdeps/s390/multiarch/strncat-vx.S: Move to ...
+ * sysdeps/s390/strncat-vx.S: ... here and adjust ifunc handling.
+ * sysdeps/s390/multiarch/strncat.c: Move to ...
+ * sysdeps/s390/strncat.c: ... here and adjust ifunc handling.
+ * sysdeps/s390/ifunc-strncat.h: New file.
+
+2018-12-18 Stefan Liebler <stli@linux.ibm.com>
+
+ * sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strcat variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strcat variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile
index 3783f44252..ec0fb8c2ad 100644
--- a/sysdeps/s390/Makefile
+++ b/sysdeps/s390/Makefile
@@ -66,5 +66,6 @@ sysdep_routines += bzero memset memset-z900 \
stpcpy stpcpy-vx stpcpy-c \
strncpy strncpy-vx strncpy-z900 \
stpncpy stpncpy-vx stpncpy-c \
- strcat strcat-vx strcat-c
+ strcat strcat-vx strcat-c \
+ strncat strncat-vx strncat-c
endif
diff --git a/sysdeps/s390/ifunc-strncat.h b/sysdeps/s390/ifunc-strncat.h
new file mode 100644
index 0000000000..bb164dcc32
--- /dev/null
+++ b/sysdeps/s390/ifunc-strncat.h
@@ -0,0 +1,52 @@
+/* strncat 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_STRNCAT_IFUNC 1
+#else
+# define HAVE_STRNCAT_IFUNC 0
+#endif
+
+#ifdef HAVE_S390_VX_ASM_SUPPORT
+# define HAVE_STRNCAT_IFUNC_AND_VX_SUPPORT HAVE_STRNCAT_IFUNC
+#else
+# define HAVE_STRNCAT_IFUNC_AND_VX_SUPPORT 0
+#endif
+
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define STRNCAT_DEFAULT STRNCAT_Z13
+# define HAVE_STRNCAT_C 0
+# define HAVE_STRNCAT_Z13 1
+#else
+# define STRNCAT_DEFAULT STRNCAT_C
+# define HAVE_STRNCAT_C 1
+# define HAVE_STRNCAT_Z13 HAVE_STRNCAT_IFUNC_AND_VX_SUPPORT
+#endif
+
+#if HAVE_STRNCAT_C
+# define STRNCAT_C __strncat_c
+#else
+# define STRNCAT_C NULL
+#endif
+
+#if HAVE_STRNCAT_Z13
+# define STRNCAT_Z13 __strncat_vx
+#else
+# define STRNCAT_Z13 NULL
+#endif
diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
index 9b66237aaf..24be3eac51 100644
--- a/sysdeps/s390/multiarch/Makefile
+++ b/sysdeps/s390/multiarch/Makefile
@@ -1,6 +1,5 @@
ifeq ($(subdir),string)
-sysdep_routines += strncat strncat-vx strncat-c \
- strcmp strcmp-vx \
+sysdep_routines += strcmp strcmp-vx \
strncmp strncmp-vx strncmp-c \
strchr strchr-vx strchr-c \
strchrnul strchrnul-vx strchrnul-c \
diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c
index 1b7f3df3a3..3abcaf08e0 100644
--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
@@ -33,6 +33,7 @@
#include <ifunc-strncpy.h>
#include <ifunc-stpncpy.h>
#include <ifunc-strcat.h>
+#include <ifunc-strncat.h>
/* Maximum number of IFUNC implementations. */
#define MAX_IFUNC 3
@@ -255,6 +256,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
)
#endif /* HAVE_STRCAT_IFUNC */
+#if HAVE_STRNCAT_IFUNC
+ IFUNC_IMPL (i, name, strncat,
+# if HAVE_STRNCAT_Z13
+ IFUNC_IMPL_ADD (array, i, strncat,
+ dl_hwcap & HWCAP_S390_VX, STRNCAT_Z13)
+# endif
+# if HAVE_STRNCAT_C
+ IFUNC_IMPL_ADD (array, i, strncat, 1, STRNCAT_C)
+# endif
+ )
+#endif /* HAVE_STRNCAT_IFUNC */
+
#ifdef HAVE_S390_VX_ASM_SUPPORT
# define IFUNC_VX_IMPL(FUNC) \
@@ -277,7 +290,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_VX_IMPL (wcscat);
- IFUNC_VX_IMPL (strncat);
IFUNC_VX_IMPL (wcsncat);
IFUNC_VX_IMPL (strcmp);
diff --git a/sysdeps/s390/multiarch/strncat-c.c b/sysdeps/s390/strncat-c.c
index 9e6c245ccb..86df89887c 100644
--- a/sysdeps/s390/multiarch/strncat-c.c
+++ b/sysdeps/s390/strncat-c.c
@@ -16,8 +16,12 @@
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 STRNCAT __strncat_c
-# define STRNCAT_PRIMARY
+#include <ifunc-strncat.h>
+
+#if HAVE_STRNCAT_C
+# if HAVE_STRNCAT_IFUNC
+# define STRNCAT STRNCAT_C
+# define STRNCAT_PRIMARY
+# endif
# include <string/strncat.c>
#endif
diff --git a/sysdeps/s390/multiarch/strncat-vx.S b/sysdeps/s390/strncat-vx.S
index e6584d0f43..76345e7dd7 100644
--- a/sysdeps/s390/multiarch/strncat-vx.S
+++ b/sysdeps/s390/strncat-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-strncat.h>
+#if HAVE_STRNCAT_Z13
# include "sysdep.h"
# include "asm-syntax.h"
@@ -40,7 +41,7 @@
-v18=part of src
-v31=register save area for r6, r7
*/
-ENTRY(__strncat_vx)
+ENTRY(STRNCAT_Z13)
.machine "z13"
.machinemode "zarch_nohighgprs"
@@ -235,5 +236,17 @@ ENTRY(__strncat_vx)
vl %v16,0(%r5,%r3) /* Load s. */
j .Lcpy_lt64
-END(__strncat_vx)
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
+END(STRNCAT_Z13)
+
+# if ! HAVE_STRNCAT_IFUNC
+strong_alias (STRNCAT_Z13, strncat)
+# endif
+
+# if ! HAVE_STRNCAT_C
+/* See string/strncat.c and define STRNCAT_PRIMARY. */
+strong_alias (STRNCAT_Z13, __strncat)
+# if defined SHARED && IS_IN (libc)
+strong_alias (__strncat, __GI___strncat)
+# endif
+# endif
+#endif
diff --git a/sysdeps/s390/multiarch/strncat.c b/sysdeps/s390/strncat.c
index 94b8dffa85..b4b3656c5a 100644
--- a/sysdeps/s390/multiarch/strncat.c
+++ b/sysdeps/s390/strncat.c
@@ -16,12 +16,23 @@
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-strncat.h>
+
+#if HAVE_STRNCAT_IFUNC
# include <string.h>
# include <ifunc-resolve.h>
-s390_vx_libc_ifunc2 (__strncat, strncat)
+# if HAVE_STRNCAT_C
+extern __typeof (__strncat) STRNCAT_C attribute_hidden;
+# endif
+
+# if HAVE_STRNCAT_Z13
+extern __typeof (__strncat) STRNCAT_Z13 attribute_hidden;
+# endif
-#else
-# include <string/strncat.c>
-#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
+s390_libc_ifunc_expr (__strncat, strncat,
+ (HAVE_STRNCAT_Z13 && (hwcap & HWCAP_S390_VX))
+ ? STRNCAT_Z13
+ : STRNCAT_DEFAULT
+ )
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2026-03-12 16:39:54 +0000