aboutsummaryrefslogtreecommitdiff
path: root/sysdeps
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/s390/Makefile3
-rw-r--r--sysdeps/s390/ifunc-memchr.h52
-rw-r--r--sysdeps/s390/memchr-vx.S (renamed from sysdeps/s390/multiarch/memchr-vx.S)20
-rw-r--r--sysdeps/s390/memchr-z900.S (renamed from sysdeps/s390/s390-64/memchr.S)39
-rw-r--r--sysdeps/s390/memchr.c (renamed from sysdeps/s390/multiarch/memchr.c)18
-rw-r--r--sysdeps/s390/multiarch/Makefile3
-rw-r--r--sysdeps/s390/multiarch/ifunc-impl-list.c14
-rw-r--r--sysdeps/s390/s390-32/memchr.S41
-rw-r--r--sysdeps/s390/s390-32/multiarch/memchr.c21
-rw-r--r--sysdeps/s390/s390-64/multiarch/memchr.c21
10 files changed, 127 insertions, 105 deletions
diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile
index c163969652..8f11ed5463 100644
--- a/sysdeps/s390/Makefile
+++ b/sysdeps/s390/Makefile
@@ -75,5 +75,6 @@ sysdep_routines += bzero memset memset-z900 \
strrchr strrchr-vx strrchr-c \
strspn strspn-vx strspn-c \
strpbrk strpbrk-vx strpbrk-c \
- strcspn strcspn-vx strcspn-c
+ strcspn strcspn-vx strcspn-c \
+ memchr memchr-vx memchr-z900
endif
diff --git a/sysdeps/s390/ifunc-memchr.h b/sysdeps/s390/ifunc-memchr.h
new file mode 100644
index 0000000000..5d1327b453
--- /dev/null
+++ b/sysdeps/s390/ifunc-memchr.h
@@ -0,0 +1,52 @@
+/* memchr 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_MEMCHR_IFUNC 1
+#else
+# define HAVE_MEMCHR_IFUNC 0
+#endif
+
+#ifdef HAVE_S390_VX_ASM_SUPPORT
+# define HAVE_MEMCHR_IFUNC_AND_VX_SUPPORT HAVE_MEMCHR_IFUNC
+#else
+# define HAVE_MEMCHR_IFUNC_AND_VX_SUPPORT 0
+#endif
+
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define MEMCHR_DEFAULT MEMCHR_Z13
+# define HAVE_MEMCHR_Z900_G5 0
+# define HAVE_MEMCHR_Z13 1
+#else
+# define MEMCHR_DEFAULT MEMCHR_Z900_G5
+# define HAVE_MEMCHR_Z900_G5 1
+# define HAVE_MEMCHR_Z13 HAVE_MEMCHR_IFUNC_AND_VX_SUPPORT
+#endif
+
+#if HAVE_MEMCHR_Z900_G5
+# define MEMCHR_Z900_G5 __memchr_default
+#else
+# define MEMCHR_Z900_G5 NULL
+#endif
+
+#if HAVE_MEMCHR_Z13
+# define MEMCHR_Z13 __memchr_vx
+#else
+# define MEMCHR_Z13 NULL
+#endif
diff --git a/sysdeps/s390/multiarch/memchr-vx.S b/sysdeps/s390/memchr-vx.S
index 77d31e0036..274e7971ca 100644
--- a/sysdeps/s390/multiarch/memchr-vx.S
+++ b/sysdeps/s390/memchr-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-memchr.h>
+#if HAVE_MEMCHR_Z13
# include "sysdep.h"
# include "asm-syntax.h"
@@ -38,7 +39,7 @@
-v17=index of found c
-v18=c replicated
*/
-ENTRY(__memchr_vx)
+ENTRY(MEMCHR_Z13)
.machine "z13"
.machinemode "zarch_nohighgprs"
@@ -149,11 +150,14 @@ ENTRY(__memchr_vx)
clgrjl %r0,%r4,.Lloop64
j .Llt64
-END(__memchr_vx)
+END(MEMCHR_Z13)
-# define memchr __memchr_c
-# undef libc_hidden_builtin_def
-# define libc_hidden_builtin_def(name) strong_alias(__memchr_c, __GI_memchr)
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
+# if ! HAVE_MEMCHR_IFUNC
+strong_alias (MEMCHR_Z13, __memchr)
+weak_alias (__memchr, memchr)
+# endif
-#include <memchr.S>
+# if ! HAVE_MEMCHR_Z900_G5 && defined SHARED && IS_IN (libc)
+strong_alias (MEMCHR_Z13, __GI_memchr)
+# endif
+#endif
diff --git a/sysdeps/s390/s390-64/memchr.S b/sysdeps/s390/memchr-z900.S
index a19fcafa14..c016bc41c6 100644
--- a/sysdeps/s390/s390-64/memchr.S
+++ b/sysdeps/s390/memchr-z900.S
@@ -1,4 +1,4 @@
-/* Search a character in a block of memory. 64 bit S/390 version.
+/* Search a character in a block of memory. 31/64 bit S/390 version.
Copyright (C) 2001-2018 Free Software Foundation, Inc.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
This file is part of the GNU C Library.
@@ -22,19 +22,42 @@
%r3 = character to find
%r4 = number of bytes to search. */
+#include <ifunc-memchr.h>
#include "sysdep.h"
#include "asm-syntax.h"
+#if HAVE_MEMCHR_Z900_G5
+# if defined __s390x__
+# define SLGR slgr
+# define LGHI lghi
+# define NGR ngr
+# define LGR lgr
+# else
+# define SLGR slr
+# define LGHI lhi
+# define NGR nr
+# define LGR lr
+# endif /* ! defined __s390x__ */
+
.text
-ENTRY(memchr)
- lghi %r0,0xff
- ngr %r0,%r3
- lgr %r1,%r2
+ENTRY(MEMCHR_Z900_G5)
+ LGHI %r0,0xff
+ NGR %r0,%r3
+ LGR %r1,%r2
la %r2,0(%r4,%r1)
0: srst %r2,%r1
jo 0b
brc 13,1f
- slgr %r2,%r2
+ SLGR %r2,%r2
1: br %r14
-END(memchr)
-libc_hidden_builtin_def (memchr)
+END(MEMCHR_Z900_G5)
+
+# if ! HAVE_MEMCHR_IFUNC
+strong_alias (MEMCHR_Z900_G5, __memchr)
+weak_alias (__memchr, memchr)
+# endif
+
+# if defined SHARED && IS_IN (libc)
+strong_alias (MEMCHR_Z900_G5, __GI_memchr)
+# endif
+#endif
diff --git a/sysdeps/s390/multiarch/memchr.c b/sysdeps/s390/memchr.c
index 3885ebaa4d..490f1b6600 100644
--- a/sysdeps/s390/multiarch/memchr.c
+++ b/sysdeps/s390/memchr.c
@@ -16,12 +16,26 @@
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-memchr.h>
+
+#if HAVE_MEMCHR_IFUNC
# define memchr __redirect_memchr
# include <string.h>
# undef memchr
# include <ifunc-resolve.h>
-s390_vx_libc_ifunc2_redirected (__redirect_memchr, __memchr, memchr)
+# if HAVE_MEMCHR_Z900_G5
+extern __typeof (__redirect_memchr) MEMCHR_Z900_G5 attribute_hidden;
+# endif
+
+# if HAVE_MEMCHR_Z13
+extern __typeof (__redirect_memchr) MEMCHR_Z13 attribute_hidden;
+# endif
+s390_libc_ifunc_expr (__redirect_memchr, __memchr,
+ (HAVE_MEMCHR_Z13 && (hwcap & HWCAP_S390_VX))
+ ? MEMCHR_Z13
+ : MEMCHR_DEFAULT
+ )
+weak_alias (__memchr, memchr)
#endif
diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
index 1578f21af4..fa1f7b81db 100644
--- a/sysdeps/s390/multiarch/Makefile
+++ b/sysdeps/s390/multiarch/Makefile
@@ -1,6 +1,5 @@
ifeq ($(subdir),string)
-sysdep_routines += memchr memchr-vx \
- rawmemchr rawmemchr-vx rawmemchr-c \
+sysdep_routines += rawmemchr rawmemchr-vx rawmemchr-c \
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 2d48c99c8d..b4be014042 100644
--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
@@ -42,6 +42,7 @@
#include <ifunc-strspn.h>
#include <ifunc-strpbrk.h>
#include <ifunc-strcspn.h>
+#include <ifunc-memchr.h>
/* Maximum number of IFUNC implementations. */
#define MAX_IFUNC 3
@@ -372,6 +373,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
)
#endif /* HAVE_STRCSPN_IFUNC */
+#if HAVE_MEMCHR_IFUNC
+ IFUNC_IMPL (i, name, memchr,
+# if HAVE_MEMCHR_Z13
+ IFUNC_IMPL_ADD (array, i, memchr,
+ dl_hwcap & HWCAP_S390_VX, MEMCHR_Z13)
+# endif
+# if HAVE_MEMCHR_Z900_G5
+ IFUNC_IMPL_ADD (array, i, memchr, 1, MEMCHR_Z900_G5)
+# endif
+ )
+#endif /* HAVE_MEMCHR_IFUNC */
+
#ifdef HAVE_S390_VX_ASM_SUPPORT
# define IFUNC_VX_IMPL(FUNC) \
@@ -412,7 +425,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_VX_IMPL (wcscspn);
- IFUNC_VX_IMPL (memchr);
IFUNC_VX_IMPL (wmemchr);
IFUNC_VX_IMPL (rawmemchr);
diff --git a/sysdeps/s390/s390-32/memchr.S b/sysdeps/s390/s390-32/memchr.S
deleted file mode 100644
index 54f9b85f57..0000000000
--- a/sysdeps/s390/s390-32/memchr.S
+++ /dev/null
@@ -1,41 +0,0 @@
-/* Search a character in a block of memory. For IBM S390
- Copyright (C) 2000-2018 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
-
- 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/>. */
-
-/*
- * R2 = address to memory area
- * R3 = character to find
- * R4 = number of bytes to search
- */
-
-#include "sysdep.h"
-#include "asm-syntax.h"
-
- .text
-ENTRY(memchr)
- lhi %r0,0xff
- nr %r0,%r3
- lr %r1,%r2
- la %r2,0(%r4,%r1)
-0: srst %r2,%r1
- jo 0b
- brc 13,1f
- slr %r2,%r2
-1: br %r14
-END(memchr)
-libc_hidden_builtin_def (memchr)
diff --git a/sysdeps/s390/s390-32/multiarch/memchr.c b/sysdeps/s390/s390-32/multiarch/memchr.c
deleted file mode 100644
index 5e1610afa4..0000000000
--- a/sysdeps/s390/s390-32/multiarch/memchr.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/* Multiple versions of memchr.
- 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/>. */
-
-/* This wrapper-file is needed, because otherwise file
- sysdeps/s390/s390-[32|64]/memchr.S will be used. */
-#include <sysdeps/s390/multiarch/memchr.c>
diff --git a/sysdeps/s390/s390-64/multiarch/memchr.c b/sysdeps/s390/s390-64/multiarch/memchr.c
deleted file mode 100644
index 5e1610afa4..0000000000
--- a/sysdeps/s390/s390-64/multiarch/memchr.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/* Multiple versions of memchr.
- 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/>. */
-
-/* This wrapper-file is needed, because otherwise file
- sysdeps/s390/s390-[32|64]/memchr.S will be used. */
-#include <sysdeps/s390/multiarch/memchr.c>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 09:15:57 +0000