aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/s390/multiarch
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/s390/multiarch')
-rw-r--r--sysdeps/s390/multiarch/Makefile3
-rw-r--r--sysdeps/s390/multiarch/ifunc-impl-list.c14
-rw-r--r--sysdeps/s390/multiarch/rawmemchr-c.c34
-rw-r--r--sysdeps/s390/multiarch/rawmemchr-vx.S92
-rw-r--r--sysdeps/s390/multiarch/rawmemchr.c31
5 files changed, 14 insertions, 160 deletions
diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
index fa1f7b8..ac6cfcf 100644
--- a/sysdeps/s390/multiarch/Makefile
+++ b/sysdeps/s390/multiarch/Makefile
@@ -1,6 +1,5 @@
ifeq ($(subdir),string)
-sysdep_routines += rawmemchr rawmemchr-vx rawmemchr-c \
- memccpy memccpy-vx memccpy-c \
+sysdep_routines += memccpy memccpy-vx memccpy-c \
memrchr memrchr-vx memrchr-c
endif
diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c
index b4be014..bf3b40e 100644
--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
@@ -43,6 +43,7 @@
#include <ifunc-strpbrk.h>
#include <ifunc-strcspn.h>
#include <ifunc-memchr.h>
+#include <ifunc-rawmemchr.h>
/* Maximum number of IFUNC implementations. */
#define MAX_IFUNC 3
@@ -385,6 +386,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
)
#endif /* HAVE_MEMCHR_IFUNC */
+#if HAVE_RAWMEMCHR_IFUNC
+ IFUNC_IMPL (i, name, rawmemchr,
+# if HAVE_RAWMEMCHR_Z13
+ IFUNC_IMPL_ADD (array, i, rawmemchr,
+ dl_hwcap & HWCAP_S390_VX, RAWMEMCHR_Z13)
+# endif
+# if HAVE_RAWMEMCHR_C
+ IFUNC_IMPL_ADD (array, i, rawmemchr, 1, RAWMEMCHR_C)
+# endif
+ )
+#endif /* HAVE_RAWMEMCHR_IFUNC */
+
#ifdef HAVE_S390_VX_ASM_SUPPORT
# define IFUNC_VX_IMPL(FUNC) \
@@ -426,7 +439,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_VX_IMPL (wcscspn);
IFUNC_VX_IMPL (wmemchr);
- IFUNC_VX_IMPL (rawmemchr);
IFUNC_VX_IMPL (memccpy);
diff --git a/sysdeps/s390/multiarch/rawmemchr-c.c b/sysdeps/s390/multiarch/rawmemchr-c.c
deleted file mode 100644
index f43c883..0000000
--- a/sysdeps/s390/multiarch/rawmemchr-c.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/* Default rawmemchr implementation for S/390.
- Copyright (C) 2015-2018 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 HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
-# include <string.h>
-
-# define RAWMEMCHR __rawmemchr_c
-# undef weak_alias
-# define weak_alias(a, b)
-# ifdef SHARED
-# undef libc_hidden_def
-# define libc_hidden_def(name) \
- __hidden_ver1 (__rawmemchr_c, __GI___rawmemchr, __rawmemchr_c);
-# endif /* SHARED */
-
-extern __typeof (rawmemchr) __rawmemchr_c attribute_hidden;
-
-# include <string/rawmemchr.c>
-#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
diff --git a/sysdeps/s390/multiarch/rawmemchr-vx.S b/sysdeps/s390/multiarch/rawmemchr-vx.S
deleted file mode 100644
index d5778be..0000000
--- a/sysdeps/s390/multiarch/rawmemchr-vx.S
+++ /dev/null
@@ -1,92 +0,0 @@
-/* Vector optimized 32/64 bit S/390 version of rawmemchr.
- Copyright (C) 2015-2018 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 HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
-
-# include "sysdep.h"
-# include "asm-syntax.h"
-
- .text
-
-/* void *rawmemchr (const void *s, int c)
- Scans memory for character c
- and returns pointer to first c.
-
- Register usage:
- -r1=tmp
- -r2=s
- -r3=c
- -r4=tmp
- -r5=current_len
- -v16=part of s
- -v17=index of unequal
- -v18=c replicated
-*/
-ENTRY(__rawmemchr_vx)
- .machine "z13"
- .machinemode "zarch_nohighgprs"
-
- vlbb %v16,0(%r2),6 /* Load s until next 4k-byte boundary. */
- lcbb %r1,0(%r2),6 /* Get bytes to 4k-byte boundary or 16. */
-
- vlvgb %v18,%r3,0 /* Generate vector which elements are all c.
- If c > 255, c will be truncated. */
- vrepb %v18,%v18,0
-
- vfeeb %v17,%v16,%v18 /* Vector find element equal. */
- vlgvb %r5,%v17,7 /* Load byte index of character or zero. */
- clrjl %r5,%r1,.Lend_found /* If found c is in loaded bytes, end. */
-
- /* Align s to 16 byte. */
- risbgn %r1,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
- lghi %r5,16
- slr %r5,%r1 /* Compute bytes to 16bytes boundary. */
-
- /* Find c in a 16byte aligned loop. */
-.Lloop:
- vl %v16,0(%r5,%r2) /* Load s. */
- vfeebs %v17,%v16,%v18 /* Vector find element equal. */
- jno .Lcharacter /* Jump away if element found. */
- vl %v16,16(%r5,%r2)
- vfeebs %v17,%v16,%v18
- jno .Lcharacter16
- vl %v16,32(%r5,%r2)
- vfeebs %v17,%v16,%v18
- jno .Lcharacter32
- vl %v16,48(%r5,%r2)
- vfeebs %v17,%v16,%v18
- jno .Lcharacter48
-
- aghi %r5,64
- j .Lloop /* No character found -> loop. */
-
- /* Found character. */
-.Lcharacter48:
- aghi %r5,16
-.Lcharacter32:
- aghi %r5,16
-.Lcharacter16:
- aghi %r5,16
-.Lcharacter:
- vlgvb %r1,%v17,7 /* Load byte index of character. */
- algr %r5,%r1
-.Lend_found:
- la %r2,0(%r5,%r2) /* Return pointer to character. */
- br %r14
-END(__rawmemchr_vx)
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
diff --git a/sysdeps/s390/multiarch/rawmemchr.c b/sysdeps/s390/multiarch/rawmemchr.c
deleted file mode 100644
index 5fdb225..0000000
--- a/sysdeps/s390/multiarch/rawmemchr.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Multiple versions of rawmemchr.
- Copyright (C) 2015-2018 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 HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
-# define __rawmemchr __redirect___rawmemchr
-# include <string.h>
-# undef __rawmemchr
-# include <ifunc-resolve.h>
-
-s390_vx_libc_ifunc2_redirected (__redirect___rawmemchr, __rawmemchr
- , __rawmemchr)
-weak_alias (__rawmemchr, rawmemchr)
-
-#else
-# include <string/rawmemchr.c>
-#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
generated by cgit v1.1 at 2025-01-23 12:35:43 +0000