+2018-12-18 Stefan Liebler <stli@linux.ibm.com>
+
+ * sysdeps/s390/multiarch/Makefile
+ (sysdep_routines): Remove memccpy variants.
+ * sysdeps/s390/Makefile (sysdep_routines): Add memccpy variants.
+ * sysdeps/s390/multiarch/ifunc-impl-list.c
+ (__libc_ifunc_impl_list): Refactor ifunc handling for memccpy.
+ * sysdeps/s390/multiarch/memccpy-c.c: Move to ...
+ * sysdeps/s390/memccpy-c.c: ... here and adjust ifunc handling.
+ * sysdeps/s390/multiarch/memccpy-vx.S: Move to ...
+ * sysdeps/s390/memccpy-vx.S: ... here and adjust ifunc handling.
+ * sysdeps/s390/multiarch/memccpy.c: Move to ...
+ * sysdeps/s390/memccpy.c: ... here and adjust ifunc handling.
+ * sysdeps/s390/ifunc-memccpy.h: New file.
+
2018-12-18 Stefan Liebler <stli@linux.ibm.com>
* sysdeps/s390/multiarch/Makefile
strpbrk strpbrk-vx strpbrk-c \
strcspn strcspn-vx strcspn-c \
memchr memchr-vx memchr-z900 \
- rawmemchr rawmemchr-vx rawmemchr-c
+ rawmemchr rawmemchr-vx rawmemchr-c \
+ memccpy memccpy-vx memccpy-c
endif
--- /dev/null
+/* memccpy 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_MEMCCPY_IFUNC 1
+#else
+# define HAVE_MEMCCPY_IFUNC 0
+#endif
+
+#ifdef HAVE_S390_VX_ASM_SUPPORT
+# define HAVE_MEMCCPY_IFUNC_AND_VX_SUPPORT HAVE_MEMCCPY_IFUNC
+#else
+# define HAVE_MEMCCPY_IFUNC_AND_VX_SUPPORT 0
+#endif
+
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define MEMCCPY_DEFAULT MEMCCPY_Z13
+# define HAVE_MEMCCPY_C 0
+# define HAVE_MEMCCPY_Z13 1
+#else
+# define MEMCCPY_DEFAULT MEMCCPY_C
+# define HAVE_MEMCCPY_C 1
+# define HAVE_MEMCCPY_Z13 HAVE_MEMCCPY_IFUNC_AND_VX_SUPPORT
+#endif
+
+#if HAVE_MEMCCPY_C
+# define MEMCCPY_C __memccpy_c
+#else
+# define MEMCCPY_C NULL
+#endif
+
+#if HAVE_MEMCCPY_Z13
+# define MEMCCPY_Z13 __memccpy_vx
+#else
+# define MEMCCPY_Z13 NULL
+#endif
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 MEMCCPY __memccpy_c
+#include <ifunc-memccpy.h>
+
+#if HAVE_MEMCCPY_C
+# if HAVE_MEMCCPY_IFUNC
+# define MEMCCPY MEMCCPY_C
+# undef weak_alias
+# define weak_alias(a, b)
+#endif
-# include <string.h>
-extern __typeof (__memccpy) __memccpy_c;
# include <string/memccpy.c>
#endif
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-memccpy.h>
+
+#if HAVE_MEMCCPY_Z13
# include "sysdep.h"
# include "asm-syntax.h"
-v19=part #2 of s
-v31=save area for r6
*/
-ENTRY(__memccpy_vx)
+ENTRY(MEMCCPY_Z13)
.machine "z13"
.machinemode "zarch_nohighgprs"
vlgvg %r7,%v31,1
lghi %r2,0 /* Return null. */
br %r14
-END(__memccpy_vx)
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
+END(MEMCCPY_Z13)
+
+# if ! HAVE_MEMCCPY_IFUNC
+strong_alias (MEMCCPY_Z13, __memccpy)
+weak_alias (__memccpy, memccpy)
+# endif
+
+#endif /* HAVE_MEMCCPY_Z13 */
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-memccpy.h>
+
+#if HAVE_MEMCCPY_IFUNC
# include <string.h>
# include <ifunc-resolve.h>
-s390_vx_libc_ifunc (__memccpy)
-weak_alias (__memccpy, memccpy)
+# if HAVE_MEMCCPY_C
+extern __typeof (__memccpy) MEMCCPY_C attribute_hidden;
+# endif
-#else
-# include <string/memccpy.c>
-#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
+# if HAVE_MEMCCPY_Z13
+extern __typeof (__memccpy) MEMCCPY_Z13 attribute_hidden;
+# endif
+
+s390_libc_ifunc_expr (__memccpy, __memccpy,
+ (HAVE_MEMCCPY_Z13 && (hwcap & HWCAP_S390_VX))
+ ? MEMCCPY_Z13
+ : MEMCCPY_DEFAULT
+ )
+weak_alias (__memccpy, memccpy)
+#endif /* HAVE_MEMCCPY_IFUNC */
ifeq ($(subdir),string)
-sysdep_routines += memccpy memccpy-vx memccpy-c \
- memrchr memrchr-vx memrchr-c
+sysdep_routines += memrchr memrchr-vx memrchr-c
endif
ifeq ($(subdir),wcsmbs)
#include <ifunc-strcspn.h>
#include <ifunc-memchr.h>
#include <ifunc-rawmemchr.h>
+#include <ifunc-memccpy.h>
/* Maximum number of IFUNC implementations. */
#define MAX_IFUNC 3
)
#endif /* HAVE_RAWMEMCHR_IFUNC */
+#if HAVE_MEMCCPY_IFUNC
+ IFUNC_IMPL (i, name, memccpy,
+# if HAVE_MEMCCPY_Z13
+ IFUNC_IMPL_ADD (array, i, memccpy,
+ dl_hwcap & HWCAP_S390_VX, MEMCCPY_Z13)
+# endif
+# if HAVE_MEMCCPY_C
+ IFUNC_IMPL_ADD (array, i, memccpy, 1, MEMCCPY_C)
+# endif
+ )
+#endif /* HAVE_MEMCCPY_IFUNC */
+
#ifdef HAVE_S390_VX_ASM_SUPPORT
# define IFUNC_VX_IMPL(FUNC) \
IFUNC_VX_IMPL (wmemchr);
- IFUNC_VX_IMPL (memccpy);
-
IFUNC_VX_IMPL (wmemset);
IFUNC_VX_IMPL (wmemcmp);
projects / thirdparty / glibc.git / commitdiff
