LXR linux/arch/x86/boot/compressed/cmdline.c

   1// SPDX-License-Identifier: GPL-2.0
   2#include "misc.h"
   3
   4#if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE
   5
   6static unsigned long fs;
   7static inline void set_fs(unsigned long seg)
   8{
   9        fs = seg << 4;  /* shift it back */
  10}
  11typedef unsigned long addr_t;
  12static inline char rdfs8(addr_t addr)
  13{
  14        return *((char *)(fs + addr));
  15}
  16#include "../cmdline.c"
  17unsigned long get_cmd_line_ptr(void)
  18{
  19        unsigned long cmd_line_ptr = boot_params->hdr.cmd_line_ptr;
  20
  21        cmd_line_ptr |= (u64)boot_params->ext_cmd_line_ptr << 32;
  22
  23        return cmd_line_ptr;
  24}
  25int cmdline_find_option(const char *option, char *buffer, int bufsize)
  26{
  27        return __cmdline_find_option(get_cmd_line_ptr(), option, buffer, bufsize);
  28}
  29int cmdline_find_option_bool(const char *option)
  30{
  31        return __cmdline_find_option_bool(get_cmd_line_ptr(), option);
  32}
  33
  34#endif
  35