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-rw-r--r--sysdeps/aarch64/multiarch/init-arch.h25
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diff --git a/sysdeps/aarch64/multiarch/init-arch.h b/sysdeps/aarch64/multiarch/init-arch.h
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+++ b/sysdeps/aarch64/multiarch/init-arch.h
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+/* Define INIT_ARCH so that midr is initialized before use by IFUNCs.
+ This file is part of the GNU C Library.
+ Copyright (C) 2017-2018 Free Software Foundation, Inc.
+
+ 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 <ldsodefs.h>
+
+#define INIT_ARCH() \
+ uint64_t __attribute__((unused)) midr = \
+ GLRO(dl_aarch64_cpu_features).midr_el1; \
+ unsigned __attribute__((unused)) zva_size = \
+ GLRO(dl_aarch64_cpu_features).zva_size;