arch/x86/boot/mkcpustr.c

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 2008 rPath, Inc. - All Rights Reserved
   4  *
   5  *   This file is part of the Linux kernel, and is made available under
   6  *   the terms of the GNU General Public License version 2 or (at your
   7  *   option) any later version; incorporated herein by reference.
   8  *
   9  * ----------------------------------------------------------------------- */
  10
  11 /*
  12  * This is a host program to preprocess the CPU strings into a
  13  * compact format suitable for the setup code.
  14  */
  15
  16 #include <stdio.h>
  17
  18 #include "../kernel/cpu/feature_names.c"
  19
  20 #if NCAPFLAGS > 8
  21 # error "Need to adjust the boot code handling of CPUID strings"
  22 #endif
  23
  24 int main(void)
  25 {
  26         int i;
  27         const char *str;
  28
  29         printf("static const char x86_cap_strs[] = \n");
  30
  31         for (i = 0; i < NCAPINTS*32; i++) {
  32                 str = x86_cap_flags[i];
  33
  34                 if (i == NCAPINTS*32-1) {
  35                         /* The last entry must be unconditional; this
  36                            also consumes the compiler-added null character */
  37                         if (!str)
  38                                 str = "";
  39                         printf("\t\"\\x%02x\"\"%s\"\n", i, str);
  40                 } else if (str) {
  41                         printf("#if REQUIRED_MASK%d & (1 << %d)\n"
  42                                "\t\"\\x%02x\"\"%s\\0\"\n"
  43                                "#endif\n",
  44                                i >> 5, i & 31, i, str);
  45                 }
  46         }
  47         printf("\t;\n");
  48         return 0;
  49 }