coredetect.c revision 2
2N/A * GRUB -- GRand Unified Bootloader 2N/A * Copyright (C) 2009 Free Software Foundation, Inc. 2N/A * GRUB is free software: you can redistribute it and/or modify 2N/A * it under the terms of the GNU General Public License as published by 2N/A * the Free Software Foundation, either version 3 of the License, or 2N/A * (at your option) any later version. 2N/A * GRUB is distributed in the hope that it will be useful, 2N/A * but WITHOUT ANY WARRANTY; without even the implied warranty of 2N/A * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 2N/A * GNU General Public License for more details. 2N/A * You should have received a copy of the GNU General Public License 2N/A asm volatile (
"xchgl %%ebx, %1; cpuid; xchgl %%ebx, %1" \
2N/A :
"=a" (a),
"=r" (b),
"=c" (c),
"=d" (d) \
2N/A /* See if we can use cpuid. */ 2N/A asm volatile (
"pushfl; pushfl; popl %0; movl %0,%1; xorl %2,%0;" 2N/A "pushl %0; popfl; pushfl; popl %0; popfl" 2N/A :
"i" (
0x00200000));
2N/A return "efiemu32.o";
2N/A /* Check the highest input value for eax. */ 2N/A /* We only look at the first four characters. */ 2N/A return "efiemu32.o";
2N/A return "efiemu32.o";