2020-12-05 23:01:58 +08:00
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/* Support for reading ISA level in /etc/ld.so.cache files written by
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Linux ldconfig. x86 version.
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2024-01-02 02:12:26 +08:00
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Copyright (C) 2021-2024 Free Software Foundation, Inc.
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2020-12-05 23:01:58 +08:00
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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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#include <sys/platform/x86.h>
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/* Return true if the ISA level in ENTRY is compatible with CPU. */
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static inline bool
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dl_cache_hwcap_isa_level_compatible (struct file_entry_new *entry)
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{
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const struct cpu_features *cpu_features = __get_cpu_features ();
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unsigned int isa_level
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= 1 << ((entry->hwcap >> 32) & DL_CACHE_HWCAP_ISA_LEVEL_MASK);
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return (isa_level & cpu_features->isa_1) == isa_level;
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}
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