2020-12-05 15:01:58 +00:00
|
|
|
/* Support for reading ISA level in /etc/ld.so.cache files written by
|
|
|
|
|
Linux ldconfig. x86 version.
|
2023-01-06 21:08:04 +00:00
|
|
|
Copyright (C) 2021-2023 Free Software Foundation, Inc.
|
2020-12-05 15:01:58 +00:00
|
|
|
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;
|
|
|
|
|
}
|
