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-rw-r--r--sysdeps/s390/strncpy.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/s390/strncpy.c b/sysdeps/s390/strncpy.c
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+++ b/sysdeps/s390/strncpy.c
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+/* Multiple versions of strncpy.
+   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/>.  */
+
+#include <ifunc-strncpy.h>
+
+#if HAVE_STRNCPY_IFUNC
+# define strncpy __redirect_strncpy
+/* Omit the strncpy inline definitions because it would redefine strncpy.  */
+# define __NO_STRING_INLINES
+# include <string.h>
+# undef strncpy
+# include <ifunc-resolve.h>
+
+# if HAVE_STRNCPY_Z900_G5
+extern __typeof (__redirect_strncpy) STRNCPY_Z900_G5 attribute_hidden;
+# endif
+
+# if HAVE_STRNCPY_Z13
+extern __typeof (__redirect_strncpy) STRNCPY_Z13 attribute_hidden;
+# endif
+
+s390_libc_ifunc_expr (__redirect_strncpy, strncpy,
+		      (HAVE_STRNCPY_Z13 && (hwcap & HWCAP_S390_VX))
+		      ? STRNCPY_Z13
+		      : STRNCPY_DEFAULT
+		      )
+#endif