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Member "stress-ng-0.09.56/core-cpu.c" (15 Mar 2019, 1473 Bytes) of package /linux/privat/stress-ng-0.09.56.tar.xz:


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    1 /*
    2  * Copyright (C) 2014-2019 Canonical, Ltd.
    3  *
    4  * This program is free software; you can redistribute it and/or
    5  * modify it under the terms of the GNU General Public License
    6  * as published by the Free Software Foundation; either version 2
    7  * of the License, or (at your option) any later version.
    8  *
    9  * This program is distributed in the hope that it will be useful,
   10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   12  * GNU General Public License for more details.
   13  *
   14  * You should have received a copy of the GNU General Public License
   15  * along with this program; if not, write to the Free Software
   16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
   17  *
   18  * This code is a complete clean re-write of the stress tool by
   19  * Colin Ian King <colin.king@canonical.com> and attempts to be
   20  * backwardly compatible with the stress tool by Amos Waterland
   21  * <apw@rossby.metr.ou.edu> but has more stress tests and more
   22  * functionality.
   23  *
   24  */
   25 #include "stress-ng.h"
   26 
   27 bool cpu_is_x86(void)
   28 {
   29 #if defined(HAVE_CPUID_H) &&    \
   30     defined(STRESS_X86) &&  \
   31     defined(HAVE_CPUID) &&  \
   32     NEED_GNUC(4,6,0)
   33     uint32_t eax, ebx, ecx, edx;
   34 
   35     /* Intel CPU? */
   36     __cpuid(0, eax, ebx, ecx, edx);
   37     if ((memcmp(&ebx, "Genu", 4) == 0) &&
   38         (memcmp(&edx, "ineI", 4) == 0) &&
   39         (memcmp(&ecx, "ntel", 4) == 0))
   40         return true;
   41     else
   42         return false;
   43 #else
   44     return false;
   45 #endif
   46 }