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-rw-r--r--sysdeps/s390/ifunc-strchr.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/sysdeps/s390/ifunc-strchr.h b/sysdeps/s390/ifunc-strchr.h
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+++ b/sysdeps/s390/ifunc-strchr.h
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+/* strchr variant information on S/390 version.
+ Copyright (C) 2018-2019 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
+ <https://www.gnu.org/licenses/>. */
+
+#if defined USE_MULTIARCH && IS_IN (libc) \
+ && ! defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define HAVE_STRCHR_IFUNC 1
+#else
+# define HAVE_STRCHR_IFUNC 0
+#endif
+
+#ifdef HAVE_S390_VX_ASM_SUPPORT
+# define HAVE_STRCHR_IFUNC_AND_VX_SUPPORT HAVE_STRCHR_IFUNC
+#else
+# define HAVE_STRCHR_IFUNC_AND_VX_SUPPORT 0
+#endif
+
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define STRCHR_DEFAULT STRCHR_Z13
+# define HAVE_STRCHR_C 0
+# define HAVE_STRCHR_Z13 1
+#else
+# define STRCHR_DEFAULT STRCHR_C
+# define HAVE_STRCHR_C 1
+# define HAVE_STRCHR_Z13 HAVE_STRCHR_IFUNC_AND_VX_SUPPORT
+#endif
+
+#if HAVE_STRCHR_C
+# define STRCHR_C __strchr_c
+#else
+# define STRCHR_C NULL
+#endif
+
+#if HAVE_STRCHR_Z13
+# define STRCHR_Z13 __strchr_vx
+#else
+# define STRCHR_Z13 NULL
+#endif