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/* Support for reading ISA level in /etc/ld.so.cache files written by
Linux ldconfig. x86 version.
Copyright (C) 2021 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/>. */
#include <sys/platform/x86.h>
/* Return true if the ISA level in ENTRY is compatible with CPU. */
static inline bool
dl_cache_hwcap_isa_level_compatible (struct file_entry_new *entry)
{
const struct cpu_features *cpu_features = __get_cpu_features ();
unsigned int isa_level
= 1 << ((entry->hwcap >> 32) & DL_CACHE_HWCAP_ISA_LEVEL_MASK);
return (isa_level & cpu_features->isa_1) == isa_level;
}
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