arch/x86/boot/mkcpustr.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /* ----------------------------------------------------------------------- *
   3  *
   4  *   Copyright 2008 rPath, Inc. - All Rights Reserved
   5  *
   6  * ----------------------------------------------------------------------- */
   7
   8 /*
   9  * This is a host program to preprocess the CPU strings into a
  10  * compact format suitable for the setup code.
  11  */
  12
  13 #include <stdio.h>
  14
  15 #include "../include/asm/required-features.h"
  16 #include "../include/asm/disabled-features.h"
  17 #include "../include/asm/cpufeatures.h"
  18 #include "../kernel/cpu/capflags.c"
  19
  20 int main(void)
  21 {
  22         int i, j;
  23         const char *str;
  24
  25         printf("static const char x86_cap_strs[] =\n");
  26
  27         for (i = 0; i < NCAPINTS; i++) {
  28                 for (j = 0; j < 32; j++) {
  29                         str = x86_cap_flags[i*32+j];
  30
  31                         if (i == NCAPINTS-1 && j == 31) {
  32                                 /* The last entry must be unconditional; this
  33                                    also consumes the compiler-added null
  34                                    character */
  35                                 if (!str)
  36                                         str = "";
  37                                 printf("\t\"\\x%02x\\x%02x\"\"%s\"\n",
  38                                        i, j, str);
  39                         } else if (str) {
  40                                 printf("#if REQUIRED_MASK%d & (1 << %d)\n"
  41                                        "\t\"\\x%02x\\x%02x\"\"%s\\0\"\n"
  42                                        "#endif\n",
  43                                        i, j, i, j, str);
  44                         }
  45                 }
  46         }
  47         printf("\t;\n");
  48         return 0;
  49 }