| Server IP : 104.21.38.3 / Your IP : 172.70.189.147 Web Server : Apache System : Linux krdc-ubuntu-s-2vcpu-4gb-amd-blr1-01.localdomain 5.15.0-142-generic #152-Ubuntu SMP Mon May 19 10:54:31 UTC 2025 x86_64 User : www ( 1000) PHP Version : 7.4.33 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /usr/include/x86_64-linux-gnu/sys/platform/ |
Upload File : |
/* Data structure for x86 CPU features.
This file is part of the GNU C Library.
Copyright (C) 2008-2022 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
<https://www.gnu.org/licenses/>. */
#ifndef _SYS_PLATFORM_X86_H
#define _SYS_PLATFORM_X86_H
#include <features.h>
#include <stdbool.h>
#include <bits/platform/x86.h>
__BEGIN_DECLS
/* Get a pointer to the CPU feature structure. */
extern const struct cpuid_feature *__x86_get_cpuid_feature_leaf (unsigned int)
__attribute__ ((pure));
static __inline__ _Bool
x86_cpu_present (unsigned int __index)
{
const struct cpuid_feature *__ptr = __x86_get_cpuid_feature_leaf
(__index / (8 * sizeof (unsigned int) * 4));
unsigned int __reg
= __index & (8 * sizeof (unsigned int) * 4 - 1);
unsigned int __bit = __reg & (8 * sizeof (unsigned int) - 1);
__reg /= 8 * sizeof (unsigned int);
return __ptr->cpuid_array[__reg] & (1 << __bit);
}
static __inline__ _Bool
x86_cpu_active (unsigned int __index)
{
const struct cpuid_feature *__ptr = __x86_get_cpuid_feature_leaf
(__index / (8 * sizeof (unsigned int) * 4));
unsigned int __reg
= __index & (8 * sizeof (unsigned int) * 4 - 1);
unsigned int __bit = __reg & (8 * sizeof (unsigned int) - 1);
__reg /= 8 * sizeof (unsigned int);
return __ptr->active_array[__reg] & (1 << __bit);
}
/* CPU_FEATURE_PRESENT evaluates to true if CPU supports the feature. */
#define CPU_FEATURE_PRESENT(name) x86_cpu_present (x86_cpu_##name)
/* CPU_FEATURE_ACTIVE evaluates to true if the feature is active. */
#define CPU_FEATURE_ACTIVE(name) x86_cpu_active (x86_cpu_##name)
__END_DECLS
#endif /* _SYS_PLATFORM_X86_H */