@@ -52,3 +52,7 @@ tst-dl-runtime-profile-noaudit-ENV = $(env-profile)
tst-dl-runtime-profile-audit-ENV = $(env-profile) $(env-audit)
endif
endif
+
+ifeq ($(subdir),string)
+sysdep_routines += memset memset-z900
+endif
new file mode 100644
@@ -0,0 +1,65 @@
+/* memset 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_Z196_ZARCH_ASM_SUPPORT
+# define HAVE_MEMSET_IFUNC 1
+#else
+# define HAVE_MEMSET_IFUNC 0
+#endif
+
+#if defined HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT
+# define MEMSET_DEFAULT MEMSET_Z196
+# define HAVE_MEMSET_Z900_G5 0
+# define HAVE_MEMSET_Z10 0
+# define HAVE_MEMSET_Z196 1
+#elif defined HAVE_S390_MIN_Z10_ZARCH_ASM_SUPPORT
+# define MEMSET_DEFAULT MEMSET_Z10
+# define HAVE_MEMSET_Z900_G5 0
+# define HAVE_MEMSET_Z10 1
+# define HAVE_MEMSET_Z196 HAVE_MEMSET_IFUNC
+#else
+# define MEMSET_DEFAULT MEMSET_Z900_G5
+# define HAVE_MEMSET_Z900_G5 1
+# define HAVE_MEMSET_Z10 HAVE_MEMSET_IFUNC
+# define HAVE_MEMSET_Z196 HAVE_MEMSET_IFUNC
+#endif
+
+#if HAVE_MEMSET_Z10 || HAVE_MEMSET_Z196
+# define HAVE_MEMSET_MVCLE 1
+#else
+# define HAVE_MEMSET_MVCLE 0
+#endif
+
+#if HAVE_MEMSET_Z900_G5
+# define MEMSET_Z900_G5 __memset_default
+#else
+# define MEMSET_Z900_G5 NULL
+#endif
+
+#if HAVE_MEMSET_Z10
+# define MEMSET_Z10 __memset_z10
+#else
+# define MEMSET_Z10 NULL
+#endif
+
+#if HAVE_MEMSET_Z196
+# define MEMSET_Z196 __memset_z196
+#else
+# define MEMSET_Z196 NULL
+#endif
similarity index 57%
rename from sysdeps/s390/multiarch/memset-s390x.S
rename to sysdeps/s390/memset-z900.S
@@ -1,5 +1,6 @@
/* Set a block of memory to some byte value. 31/64 bit S/390 version.
- Copyright (C) 2012-2018 Free Software Foundation, Inc.
+ 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.
The GNU C Library is free software; you can redistribute it and/or
@@ -17,8 +18,9 @@
<http://www.gnu.org/licenses/>. */
-#include "sysdep.h"
+#include <sysdep.h>
#include "asm-syntax.h"
+#include <ifunc-memset.h>
/* INPUT PARAMETERS
%r2 = address of memory area
@@ -27,43 +29,68 @@
.text
-#if IS_IN (libc)
+#if HAVE_MEMSET_Z900_G5
+# if defined __s390x__
+# define LTGR ltgr
+# define CGHI cghi
+# define LGR lgr
+# define AGHI aghi
+# define BRCTG brctg
+# else
+# define LTGR ltr
+# define CGHI chi
+# define LGR lr
+# define AGHI ahi
+# define BRCTG brct
+# endif /* ! defined __s390x__ */
-ENTRY(__memset_z196)
- .machine "z196"
- .machinemode "zarch_nohighgprs"
-# if !defined __s390x__
- llgfr %r4,%r4
-# endif /* !defined __s390x__ */
- ltgr %r4,%r4
- je .L_Z196_4
+ENTRY(MEMSET_Z900_G5)
+#if defined __s390x__
+ .machine "z900"
+#else
+ .machine "g5"
+#endif /* ! defined __s390x__ */
+ LTGR %r4,%r4
+ je .L_Z900_G5_4
stc %r3,0(%r2)
- lgr %r1,%r2
- cghi %r4,1
- je .L_Z196_4
- aghi %r4,-2
- srlg %r5,%r4,8
- ltgr %r5,%r5
- jne .L_Z196_1
-.L_Z196_3:
- exrl %r4,.L_Z196_17
-.L_Z196_4:
+ CGHI %r4,1
+ LGR %r1,%r2
+ je .L_Z900_G5_4
+ AGHI %r4,-2
+#if defined __s390x__
+ larl %r5,.L_Z900_G5_18
+ srlg %r3,%r4,8
+# define Z900_G5_EX_D 0
+#else
+ basr %r5,0
+.L_Z900_G5_19:
+# define Z900_G5_EX_D .L_Z900_G5_18-.L_Z900_G5_19
+ lr %r3,%r4
+ srl %r3,8
+#endif /* ! defined __s390x__ */
+ LTGR %r3,%r3
+ jne .L_Z900_G5_14
+.L_Z900_G5_3:
+ ex %r4,Z900_G5_EX_D(%r5)
+.L_Z900_G5_4:
br %r14
-.L_Z196_1:
- cgfi %r5,1048576
- jh __memset_mvcle # Switch to mvcle for >256MB
-.L_Z196_2:
- pfd 2,1024(%r1)
+.L_Z900_G5_14:
mvc 1(256,%r1),0(%r1)
- aghi %r5,-1
la %r1,256(%r1)
- jne .L_Z196_2
- j .L_Z196_3
-.L_Z196_17:
+ BRCTG %r3,.L_Z900_G5_14
+ j .L_Z900_G5_3
+.L_Z900_G5_18:
mvc 1(1,%r1),0(%r1)
-END(__memset_z196)
+END(MEMSET_Z900_G5)
+# undef LTGR
+# undef CGHI
+# undef LGR
+# undef AGHI
+# undef BRCTG
+#endif /* HAVE_MEMSET_Z900_G5 */
-ENTRY(__memset_z10)
+#if HAVE_MEMSET_Z10
+ENTRY(MEMSET_Z10)
.machine "z10"
.machinemode "zarch_nohighgprs"
# if !defined __s390x__
@@ -91,8 +118,46 @@ ENTRY(__memset_z10)
j .L_Z10_3
.L_Z10_18:
mvc 1(1,%r1),0(%r1)
-END(__memset_z10)
+END(MEMSET_Z10)
+#endif /* HAVE_MEMSET_Z10 */
+
+#if HAVE_MEMSET_Z196
+ENTRY(MEMSET_Z196)
+ .machine "z196"
+ .machinemode "zarch_nohighgprs"
+# if !defined __s390x__
+ llgfr %r4,%r4
+# endif /* !defined __s390x__ */
+ ltgr %r4,%r4
+ je .L_Z196_4
+ stc %r3,0(%r2)
+ lgr %r1,%r2
+ cghi %r4,1
+ je .L_Z196_4
+ aghi %r4,-2
+ srlg %r5,%r4,8
+ ltgr %r5,%r5
+ jne .L_Z196_1
+.L_Z196_3:
+ exrl %r4,.L_Z196_17
+.L_Z196_4:
+ br %r14
+.L_Z196_1:
+ cgfi %r5,1048576
+ jh __memset_mvcle # Switch to mvcle for >256MB
+.L_Z196_2:
+ pfd 2,1024(%r1)
+ mvc 1(256,%r1),0(%r1)
+ aghi %r5,-1
+ la %r1,256(%r1)
+ jne .L_Z196_2
+ j .L_Z196_3
+.L_Z196_17:
+ mvc 1(1,%r1),0(%r1)
+END(MEMSET_Z196)
+#endif /* HAVE_MEMSET_Z196 */
+#if HAVE_MEMSET_MVCLE
ENTRY(__memset_mvcle)
aghi %r4,2 # take back the change done by the caller
lgr %r0,%r2 # save source address
@@ -106,15 +171,16 @@ ENTRY(__memset_mvcle)
.L1:
br %r14
END(__memset_mvcle)
+#endif /* HAVE_MEMSET_MVCLE */
-#endif /* IS_IN (libc) */
-
-#include "../memset.S"
+#if ! HAVE_MEMSET_IFUNC
+/* If we don't use ifunc, define an alias for memset here.
+ Otherwise see sysdeps/s390/memset.c. */
+strong_alias (MEMSET_DEFAULT, memset)
+#endif
-#if !IS_IN (libc)
-.globl memset
-.set memset,__memset_default
-#elif defined SHARED && IS_IN (libc)
-.globl __GI_memset
-.set __GI_memset,__memset_default
+#if defined SHARED && IS_IN (libc)
+/* Defines the internal symbol.
+ Compare to libc_hidden_builtin_def (memset) in string/memset.c. */
+strong_alias (MEMSET_DEFAULT, __GI_memset)
#endif
deleted file mode 100644
@@ -1,97 +0,0 @@
-/* Set a block of memory to some byte value. 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.
-
- 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/>. */
-
-
-#include <sysdep.h>
-#include "asm-syntax.h"
-
-/* INPUT PARAMETERS
- %r2 = address of memory area
- %r3 = byte to fill memory with
- %r4 = number of bytes to fill. */
-
- .text
-
-#if defined __s390x__
-# define LTGR ltgr
-# define CGHI cghi
-# define LGR lgr
-# define AGHI aghi
-# define BRCTG brctg
-#else
-# define LTGR ltr
-# define CGHI chi
-# define LGR lr
-# define AGHI ahi
-# define BRCTG brct
-#endif /* ! defined __s390x__ */
-
-#ifdef USE_MULTIARCH
-ENTRY(__memset_default)
-#else
-ENTRY(memset)
-#endif
-#if defined __s390x__
- .machine "z900"
-#else
- .machine "g5"
-#endif /* ! defined __s390x__ */
- LTGR %r4,%r4
- je .L_Z900_G5_4
- stc %r3,0(%r2)
- CGHI %r4,1
- LGR %r1,%r2
- je .L_Z900_G5_4
- AGHI %r4,-2
-#if defined __s390x__
- larl %r5,.L_Z900_G5_18
- srlg %r3,%r4,8
-# define Z900_G5_EX_D 0
-#else
- basr %r5,0
-.L_Z900_G5_19:
-# define Z900_G5_EX_D .L_Z900_G5_18-.L_Z900_G5_19
- lr %r3,%r4
- srl %r3,8
-#endif /* ! defined __s390x__ */
- LTGR %r3,%r3
- jne .L_Z900_G5_14
-.L_Z900_G5_3:
- ex %r4,Z900_G5_EX_D(%r5)
-.L_Z900_G5_4:
- br %r14
-.L_Z900_G5_14:
- mvc 1(256,%r1),0(%r1)
- la %r1,256(%r1)
- BRCTG %r3,.L_Z900_G5_14
- j .L_Z900_G5_3
-.L_Z900_G5_18:
- mvc 1(1,%r1),0(%r1)
-#ifdef USE_MULTIARCH
-END(__memset_default)
-#else
-END(memset)
-libc_hidden_builtin_def (memset)
-#endif
-
-#undef LTGR
-#undef CGHI
-#undef LGR
-#undef AGHI
-#undef BRCTG
similarity index 60%
rename from sysdeps/s390/multiarch/memset.c
rename to sysdeps/s390/memset.c
@@ -16,11 +16,33 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#if IS_IN (libc)
+#include <ifunc-memset.h>
+#if HAVE_MEMSET_IFUNC
# define memset __redirect_memset
# include <string.h>
# undef memset
# include <ifunc-resolve.h>
-s390_libc_ifunc (__redirect_memset, __memset, memset)
+# if HAVE_MEMSET_Z900_G5
+extern __typeof (__redirect_memset) MEMSET_Z900_G5 attribute_hidden;
+# endif
+
+# if HAVE_MEMSET_Z10
+extern __typeof (__redirect_memset) MEMSET_Z10 attribute_hidden;
+# endif
+
+# if HAVE_MEMSET_Z196
+extern __typeof (__redirect_memset) MEMSET_Z196 attribute_hidden;
+# endif
+
+s390_libc_ifunc_expr (__redirect_memset, memset,
+ ({
+ s390_libc_ifunc_init ();
+ (HAVE_MEMSET_Z196 && S390_IS_Z196 (stfle_bits))
+ ? MEMSET_Z196
+ : (HAVE_MEMSET_Z10 && S390_IS_Z10 (stfle_bits))
+ ? MEMSET_Z10
+ : MEMSET_DEFAULT;
+ })
+ )
#endif
@@ -19,8 +19,7 @@ sysdep_routines += strlen strlen-vx strlen-c \
rawmemchr rawmemchr-vx rawmemchr-c \
memccpy memccpy-vx memccpy-c \
memrchr memrchr-vx memrchr-c \
- mempcpy \
- memset memset-s390x
+ mempcpy
endif
ifeq ($(subdir),wcsmbs)
@@ -21,6 +21,7 @@
#include <wchar.h>
#include <ifunc-impl-list.h>
#include <ifunc-resolve.h>
+#include <ifunc-memset.h>
/* Maximum number of IFUNC implementations. */
#define MAX_IFUNC 3
@@ -46,12 +47,21 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
S390_STORE_STFLE (stfle_bits);
}
+#if HAVE_MEMSET_IFUNC
IFUNC_IMPL (i, name, memset,
+# if HAVE_MEMSET_Z196
IFUNC_IMPL_ADD (array, i, memset,
- S390_IS_Z196 (stfle_bits), __memset_z196)
+ S390_IS_Z196 (stfle_bits), MEMSET_Z196)
+# endif
+# if HAVE_MEMSET_Z10
IFUNC_IMPL_ADD (array, i, memset,
- S390_IS_Z10 (stfle_bits), __memset_z10)
- IFUNC_IMPL_ADD (array, i, memset, 1, __memset_default))
+ S390_IS_Z10 (stfle_bits), MEMSET_Z10)
+# endif
+# if HAVE_MEMSET_Z900_G5
+ IFUNC_IMPL_ADD (array, i, memset, 1, MEMSET_Z900_G5)
+# endif
+ )
+#endif /* HAVE_MEMSET_IFUNC */
IFUNC_IMPL (i, name, memcmp,
IFUNC_IMPL_ADD (array, i, memcmp,