arch/x86/boot/compressed/cmdline.c

   1 #include "misc.h"
   2
   3 #if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE
   4
   5 static unsigned long fs;
   6 static inline void set_fs(unsigned long seg)
   7 {
   8         fs = seg << 4;  /* shift it back */
   9 }
  10 typedef unsigned long addr_t;
  11 static inline char rdfs8(addr_t addr)
  12 {
  13         return *((char *)(fs + addr));
  14 }
  15 #include "../cmdline.c"
  16 static unsigned long get_cmd_line_ptr(void)
  17 {
  18         unsigned long cmd_line_ptr = real_mode->hdr.cmd_line_ptr;
  19
  20         cmd_line_ptr |= (u64)real_mode->ext_cmd_line_ptr << 32;
  21
  22         return cmd_line_ptr;
  23 }
  24 int cmdline_find_option(const char *option, char *buffer, int bufsize)
  25 {
  26         return __cmdline_find_option(get_cmd_line_ptr(), option, buffer, bufsize);
  27 }
  28 int cmdline_find_option_bool(const char *option)
  29 {
  30         return __cmdline_find_option_bool(get_cmd_line_ptr(), option);
  31 }
  32
  33 #endif