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TOMOYO Linux Cross Reference
Linux/arch/x86/boot/compressed/cmdline.c

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

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