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-rw-r--r--sysdeps/s390/ifunc-strncmp.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/sysdeps/s390/ifunc-strncmp.h b/sysdeps/s390/ifunc-strncmp.h
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index 0000000000..511b3e9720
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+++ b/sysdeps/s390/ifunc-strncmp.h
@@ -0,0 +1,52 @@
+/* strncmp 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_STRNCMP_IFUNC	1
+#else
+# define HAVE_STRNCMP_IFUNC	0
+#endif
+
+#ifdef HAVE_S390_VX_ASM_SUPPORT
+# define HAVE_STRNCMP_IFUNC_AND_VX_SUPPORT HAVE_STRNCMP_IFUNC
+#else
+# define HAVE_STRNCMP_IFUNC_AND_VX_SUPPORT 0
+#endif
+
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define STRNCMP_DEFAULT	STRNCMP_Z13
+# define HAVE_STRNCMP_C		0
+# define HAVE_STRNCMP_Z13	1
+#else
+# define STRNCMP_DEFAULT	STRNCMP_C
+# define HAVE_STRNCMP_C		1
+# define HAVE_STRNCMP_Z13	HAVE_STRNCMP_IFUNC_AND_VX_SUPPORT
+#endif
+
+#if HAVE_STRNCMP_C
+# define STRNCMP_C		__strncmp_c
+#else
+# define STRNCMP_C		NULL
+#endif
+
+#if HAVE_STRNCMP_Z13
+# define STRNCMP_Z13		__strncmp_vx
+#else
+# define STRNCMP_Z13		NULL
+#endif