diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile
index 600d8e6..f092355 100644
--- a/sysdeps/s390/Makefile
+++ b/sysdeps/s390/Makefile
@@ -37,5 +37,6 @@ sysdep_routines += bzero memset memset-z900 \
memmove memmove-c \
strstr strstr-vx strstr-c \
memmem memmem-vx memmem-c \
- strlen strlen-vx strlen-c
+ strlen strlen-vx strlen-c \
+ strnlen strnlen-vx strnlen-c
endif
diff --git a/sysdeps/s390/ifunc-strnlen.h b/sysdeps/s390/ifunc-strnlen.h
new file mode 100644
index 0000000..e923298
--- /dev/null
+++ b/sysdeps/s390/ifunc-strnlen.h
@@ -0,0 +1,52 @@
+/* strnlen 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
+ . */
+
+#if defined USE_MULTIARCH && IS_IN (libc) \
+ && ! defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define HAVE_STRNLEN_IFUNC 1
+#else
+# define HAVE_STRNLEN_IFUNC 0
+#endif
+
+#ifdef HAVE_S390_VX_ASM_SUPPORT
+# define HAVE_STRNLEN_IFUNC_AND_VX_SUPPORT HAVE_STRNLEN_IFUNC
+#else
+# define HAVE_STRNLEN_IFUNC_AND_VX_SUPPORT 0
+#endif
+
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define STRNLEN_DEFAULT STRNLEN_Z13
+# define HAVE_STRNLEN_C 0
+# define HAVE_STRNLEN_Z13 1
+#else
+# define STRNLEN_DEFAULT STRNLEN_C
+# define HAVE_STRNLEN_C 1
+# define HAVE_STRNLEN_Z13 HAVE_STRNLEN_IFUNC_AND_VX_SUPPORT
+#endif
+
+#if HAVE_STRNLEN_C
+# define STRNLEN_C __strnlen_c
+#else
+# define STRNLEN_C NULL
+#endif
+
+#if HAVE_STRNLEN_Z13
+# define STRNLEN_Z13 __strnlen_vx
+#else
+# define STRNLEN_Z13 NULL
+#endif
diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
index 6015239..35ba223 100644
--- a/sysdeps/s390/multiarch/Makefile
+++ b/sysdeps/s390/multiarch/Makefile
@@ -1,6 +1,5 @@
ifeq ($(subdir),string)
-sysdep_routines += strnlen strnlen-vx strnlen-c \
- strcpy strcpy-vx \
+sysdep_routines += strcpy strcpy-vx \
stpcpy stpcpy-vx stpcpy-c \
strncpy strncpy-vx \
stpncpy stpncpy-vx stpncpy-c \
diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c
index c531be4..680e5b7 100644
--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
@@ -27,6 +27,7 @@
#include
#include
#include
+#include
/* Maximum number of IFUNC implementations. */
#define MAX_IFUNC 3
@@ -177,6 +178,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
)
#endif /* HAVE_STRLEN_IFUNC */
+#if HAVE_STRNLEN_IFUNC
+ IFUNC_IMPL (i, name, strnlen,
+# if HAVE_STRNLEN_Z13
+ IFUNC_IMPL_ADD (array, i, strnlen,
+ dl_hwcap & HWCAP_S390_VX, STRNLEN_Z13)
+# endif
+# if HAVE_STRNLEN_C
+ IFUNC_IMPL_ADD (array, i, strnlen, 1, STRNLEN_C)
+# endif
+ )
+#endif /* HAVE_STRNLEN_IFUNC */
+
#ifdef HAVE_S390_VX_ASM_SUPPORT
# define IFUNC_VX_IMPL(FUNC) \
@@ -187,7 +200,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_VX_IMPL (wcslen);
- IFUNC_VX_IMPL (strnlen);
IFUNC_VX_IMPL (wcsnlen);
IFUNC_VX_IMPL (strcpy);
diff --git a/sysdeps/s390/multiarch/strnlen-c.c b/sysdeps/s390/multiarch/strnlen-c.c
deleted file mode 100644
index 353e83e..0000000
--- a/sysdeps/s390/multiarch/strnlen-c.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/* Default strnlen 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
- . */
-
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
-# define STRNLEN __strnlen_c
-# ifdef SHARED
-# undef libc_hidden_def
-# define libc_hidden_def(name) \
- __hidden_ver1 (__strnlen_c, __GI_strnlen, __strnlen_c); \
- strong_alias (__strnlen_c, __strnlen_c_1); \
- __hidden_ver1 (__strnlen_c_1, __GI___strnlen, __strnlen_c_1);
-# endif /* SHARED */
-
-# include
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
diff --git a/sysdeps/s390/multiarch/strnlen-vx.S b/sysdeps/s390/multiarch/strnlen-vx.S
deleted file mode 100644
index fc659a9..0000000
--- a/sysdeps/s390/multiarch/strnlen-vx.S
+++ /dev/null
@@ -1,134 +0,0 @@
-/* Vector optimized 32/64 bit S/390 version of strnlen.
- 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
- . */
-
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
-
-# include "sysdep.h"
-# include "asm-syntax.h"
-
- .text
-
-/* size_t strnlen (const char *s, size_t maxlen)
- Returns the number of characters in s or at most maxlen.
-
- Register usage:
- -r1=tmp
- -r2=address of string
- -r3=maxlen (number of characters to be read)
- -r4=tmp
- -r5=current_len and return_value
- -v16=part of s
-*/
-ENTRY(__strnlen_vx)
- .machine "z13"
- .machinemode "zarch_nohighgprs"
-
-# if !defined __s390x__
- llgfr %r3,%r3
-# endif /* !defined __s390x__ */
-
- clgfi %r3,0 /* if maxlen == 0, return 0. */
- locgre %r2,%r3
- ber %r14
-
- 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. */
- llgfr %r1,%r1 /* Convert 32bit to 64bit. */
-
- vfenezb %v16,%v16,%v16 /* Find element not equal with zero search. */
- clgr %r1,%r3
- locgrh %r1,%r3 /* loaded_byte_count
- = min (loaded_byte_count, maxlen) */
-
- vlgvb %r5,%v16,7 /* Load zero index or 16 if not found. */
- clr %r5,%r1 /* If found zero within loaded bytes? */
- locgrl %r2,%r5 /* Then copy return value. */
- blr %r14 /* And return. */
-
- clgr %r1,%r3 /* If loaded_byte_count == maxlen? */
- locgre %r2,%r3 /* Then copy return value. */
- ber %r14 /* And return. */
-
- /* Align s to 16 byte. */
- risbgn %r4,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
- lghi %r5,16 /* current_len = 16. */
- slr %r5,%r4 /* Compute bytes to 16bytes boundary. */
-
- lgr %r1,%r5 /* If %r5 + 64 < maxlen? -> loop64. */
- aghi %r1,64
- clgrjl %r1,%r3,.Lloop64
-
- /* Find zero in max 64byte with aligned s. */
-.Llt64:
- vl %v16,0(%r5,%r2) /* Load s. */
- vfenezbs %v16,%v16,%v16 /* Find element not equal with zero search. */
- je .Lfound /* Jump away if zero was found. */
- aghi %r5,16
- clgrjhe %r5,%r3,.Lfound /* current_len >= maxlen -> end. */
- vl %v16,0(%r5,%r2)
- vfenezbs %v16,%v16,%v16
- je .Lfound
- aghi %r5,16
- clgrjhe %r5,%r3,.Lfound
- vl %v16,0(%r5,%r2)
- vfenezbs %v16,%v16,%v16
- je .Lfound
- aghi %r5,16
- clgrjhe %r5,%r3,.Lfound
- vl %v16,0(%r5,%r2)
- vfenezbs %v16,%v16,%v16
- j .Lfound
-
-.Lfound48:
- aghi %r5,16
-.Lfound32:
- aghi %r5,16
-.Lfound16:
- aghi %r5,16
-.Lfound:
- vlgvb %r4,%v16,7 /* Load byte index of zero or 16 if no zero. */
- algr %r5,%r4
-
- clgr %r5,%r3
- locgrh %r5,%r3 /* Return min (current_len, maxlen). */
- lgr %r2,%r5
- br %r14
-
- /* Find zero in 16 byte aligned loop. */
-.Lloop64:
- vl %v16,0(%r5,%r2) /* Load s. */
- vfenezbs %v16,%v16,%v16 /* Find element not equal with zero search. */
- je .Lfound /* Jump away if zero was found. */
- vl %v16,16(%r5,%r2)
- vfenezbs %v16,%v16,%v16
- je .Lfound16
- vl %v16,32(%r5,%r2)
- vfenezbs %v16,%v16,%v16
- je .Lfound32
- vl %v16,48(%r5,%r2)
- vfenezbs %v16,%v16,%v16
- je .Lfound48
-
- aghi %r5,64
- lgr %r1,%r5 /* If %r5 + 64 < maxlen? -> loop64. */
- aghi %r1,64
- clgrjl %r1,%r3,.Lloop64
-
- j .Llt64
-END(__strnlen_vx)
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
diff --git a/sysdeps/s390/multiarch/strnlen.c b/sysdeps/s390/multiarch/strnlen.c
deleted file mode 100644
index 0f9cff5..0000000
--- a/sysdeps/s390/multiarch/strnlen.c
+++ /dev/null
@@ -1,32 +0,0 @@
-/* Multiple versions of strnlen.
- 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
- . */
-
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
-# define strnlen __redirect_strnlen
-# define __strnlen __redirect___strnlen
-# include
-# undef strnlen
-# undef __strnlen
-# include
-
-s390_vx_libc_ifunc_redirected (__redirect___strnlen, __strnlen)
-weak_alias (__strnlen, strnlen)
-
-#else
-# include
-#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
diff --git a/sysdeps/s390/strnlen-c.c b/sysdeps/s390/strnlen-c.c
new file mode 100644
index 0000000..c2d887f
--- /dev/null
+++ b/sysdeps/s390/strnlen-c.c
@@ -0,0 +1,34 @@
+/* Default strnlen 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
+ . */
+
+#include
+
+#if HAVE_STRNLEN_C
+# if HAVE_STRNLEN_IFUNC
+# define STRNLEN STRNLEN_C
+# if defined SHARED && IS_IN (libc)
+# undef libc_hidden_def
+# define libc_hidden_def(name) \
+ __hidden_ver1 (__strnlen_c, __GI_strnlen, __strnlen_c); \
+ strong_alias (__strnlen_c, __strnlen_c_1); \
+ __hidden_ver1 (__strnlen_c_1, __GI___strnlen, __strnlen_c_1);
+# endif
+# endif
+
+# include
+#endif
diff --git a/sysdeps/s390/strnlen-vx.S b/sysdeps/s390/strnlen-vx.S
new file mode 100644
index 0000000..0b8fe3d
--- /dev/null
+++ b/sysdeps/s390/strnlen-vx.S
@@ -0,0 +1,147 @@
+/* Vector optimized 32/64 bit S/390 version of strnlen.
+ 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
+ . */
+
+#include
+
+#if HAVE_STRNLEN_Z13
+
+# include "sysdep.h"
+# include "asm-syntax.h"
+
+ .text
+
+/* size_t strnlen (const char *s, size_t maxlen)
+ Returns the number of characters in s or at most maxlen.
+
+ Register usage:
+ -r1=tmp
+ -r2=address of string
+ -r3=maxlen (number of characters to be read)
+ -r4=tmp
+ -r5=current_len and return_value
+ -v16=part of s
+*/
+ENTRY(STRNLEN_Z13)
+ .machine "z13"
+ .machinemode "zarch_nohighgprs"
+
+# if !defined __s390x__
+ llgfr %r3,%r3
+# endif /* !defined __s390x__ */
+
+ clgfi %r3,0 /* if maxlen == 0, return 0. */
+ locgre %r2,%r3
+ ber %r14
+
+ 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. */
+ llgfr %r1,%r1 /* Convert 32bit to 64bit. */
+
+ vfenezb %v16,%v16,%v16 /* Find element not equal with zero search. */
+ clgr %r1,%r3
+ locgrh %r1,%r3 /* loaded_byte_count
+ = min (loaded_byte_count, maxlen) */
+
+ vlgvb %r5,%v16,7 /* Load zero index or 16 if not found. */
+ clr %r5,%r1 /* If found zero within loaded bytes? */
+ locgrl %r2,%r5 /* Then copy return value. */
+ blr %r14 /* And return. */
+
+ clgr %r1,%r3 /* If loaded_byte_count == maxlen? */
+ locgre %r2,%r3 /* Then copy return value. */
+ ber %r14 /* And return. */
+
+ /* Align s to 16 byte. */
+ risbgn %r4,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
+ lghi %r5,16 /* current_len = 16. */
+ slr %r5,%r4 /* Compute bytes to 16bytes boundary. */
+
+ lgr %r1,%r5 /* If %r5 + 64 < maxlen? -> loop64. */
+ aghi %r1,64
+ clgrjl %r1,%r3,.Lloop64
+
+ /* Find zero in max 64byte with aligned s. */
+.Llt64:
+ vl %v16,0(%r5,%r2) /* Load s. */
+ vfenezbs %v16,%v16,%v16 /* Find element not equal with zero search. */
+ je .Lfound /* Jump away if zero was found. */
+ aghi %r5,16
+ clgrjhe %r5,%r3,.Lfound /* current_len >= maxlen -> end. */
+ vl %v16,0(%r5,%r2)
+ vfenezbs %v16,%v16,%v16
+ je .Lfound
+ aghi %r5,16
+ clgrjhe %r5,%r3,.Lfound
+ vl %v16,0(%r5,%r2)
+ vfenezbs %v16,%v16,%v16
+ je .Lfound
+ aghi %r5,16
+ clgrjhe %r5,%r3,.Lfound
+ vl %v16,0(%r5,%r2)
+ vfenezbs %v16,%v16,%v16
+ j .Lfound
+
+.Lfound48:
+ aghi %r5,16
+.Lfound32:
+ aghi %r5,16
+.Lfound16:
+ aghi %r5,16
+.Lfound:
+ vlgvb %r4,%v16,7 /* Load byte index of zero or 16 if no zero. */
+ algr %r5,%r4
+
+ clgr %r5,%r3
+ locgrh %r5,%r3 /* Return min (current_len, maxlen). */
+ lgr %r2,%r5
+ br %r14
+
+ /* Find zero in 16 byte aligned loop. */
+.Lloop64:
+ vl %v16,0(%r5,%r2) /* Load s. */
+ vfenezbs %v16,%v16,%v16 /* Find element not equal with zero search. */
+ je .Lfound /* Jump away if zero was found. */
+ vl %v16,16(%r5,%r2)
+ vfenezbs %v16,%v16,%v16
+ je .Lfound16
+ vl %v16,32(%r5,%r2)
+ vfenezbs %v16,%v16,%v16
+ je .Lfound32
+ vl %v16,48(%r5,%r2)
+ vfenezbs %v16,%v16,%v16
+ je .Lfound48
+
+ aghi %r5,64
+ lgr %r1,%r5 /* If %r5 + 64 < maxlen? -> loop64. */
+ aghi %r1,64
+ clgrjl %r1,%r3,.Lloop64
+
+ j .Llt64
+END(STRNLEN_Z13)
+
+# if ! HAVE_STRNLEN_IFUNC
+strong_alias (STRNLEN_Z13, __strnlen)
+weak_alias (__strnlen, strnlen)
+# endif
+
+# if ! HAVE_STRNLEN_C && defined SHARED && IS_IN (libc)
+strong_alias (STRNLEN_Z13, __GI_strnlen)
+strong_alias (STRNLEN_Z13, __GI___strnlen)
+# endif
+
+#endif /* HAVE_STRNLEN_Z13 */
diff --git a/sysdeps/s390/strnlen.c b/sysdeps/s390/strnlen.c
new file mode 100644
index 0000000..aa4953d
--- /dev/null
+++ b/sysdeps/s390/strnlen.c
@@ -0,0 +1,43 @@
+/* Multiple versions of strnlen.
+ 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
+ . */
+
+#include
+
+#if HAVE_STRNLEN_IFUNC
+# define strnlen __redirect_strnlen
+# define __strnlen __redirect___strnlen
+# include
+# undef strnlen
+# undef __strnlen
+# include
+
+# if HAVE_STRNLEN_C
+extern __typeof (__redirect_strnlen) STRNLEN_C attribute_hidden;
+# endif
+
+# if HAVE_STRNLEN_Z13
+extern __typeof (__redirect_strnlen) STRNLEN_Z13 attribute_hidden;
+# endif
+
+s390_libc_ifunc_expr (__redirect___strnlen, __strnlen,
+ (HAVE_STRNLEN_Z13 && (hwcap & HWCAP_S390_VX))
+ ? STRNLEN_Z13
+ : STRNLEN_DEFAULT
+ )
+weak_alias (__strnlen, strnlen)
+#endif /* HAVE_STRNLEN_IFUNC */