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elf: Add hook for checking HWCAP bits after auxiliary vector parsing
Reviewed-by: Stefan Liebler <stli@linux.ibm.com>
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4ad473e97a
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eb24865637
@ -46,6 +46,7 @@
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#include <dl-tunables.h>
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#include <dl-auxv.h>
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#include <dl-hwcap-check.h>
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extern char **_environ attribute_hidden;
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extern char _end[] attribute_hidden;
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@ -190,6 +191,8 @@ _dl_sysdep_start (void **start_argptr,
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DL_PLATFORM_AUXV
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}
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dl_hwcap_check ();
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#ifndef HAVE_AUX_SECURE
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if (seen != -1)
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{
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28
sysdeps/generic/dl-hwcap-check.h
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28
sysdeps/generic/dl-hwcap-check.h
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@ -0,0 +1,28 @@
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/* Check for hardware capabilities after HWCAP parsing. Generic version.
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Copyright (C) 2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _DL_HWCAP_CHECK_H
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#define _DL_HWCAP_CHECK_H
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static inline void
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dl_hwcap_check (void)
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{
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/* The generic implementation does not perform any checks. */
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}
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#endif /* _DL_HWCAP_CHECK_H */
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