validation/asm-goto-labels.c

   1 static inline int __static_cpu_has(unsigned char bit)
   2 {
   3        asm goto("1: jmp %l[t_no]\n"
   4                 "2:\n"
   5                 ".section .altinstructions,\"a\"\n"
   6                 "\n"
   7                 "1b\n"
   8                 "0\n"         /* no replacement */
   9                 " .byte %P0\n"         /* feature bit */
  10                 " .byte 2b - 1b\n"     /* source len */
  11                 " .byte 0\n"           /* replacement len */
  12                 " .byte 0xff + 0 - (2b-1b)\n"  /* padding */
  13                 ".previous\n"
  14                 : : "i" (bit) : : t_no, ble);
  15        return 1;
  16 t_no:
  17        return 0;
  18 }
  19
  20 /*
  21  * check-name: Asm with goto labels.
  22  */
  23