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

#include "misc.h"

#ifdef CONFIG_EARLY_PRINTK

static unsigned long fs;
static inline void set_fs(unsigned long seg)
{
	fs = seg << 4;  /* shift it back */
}
typedef unsigned long addr_t;
static inline char rdfs8(addr_t addr)
{
	return *((char *)(fs + addr));
}
#include "../cmdline.c"
static unsigned long get_cmd_line_ptr(void)
{
	unsigned long cmd_line_ptr = real_mode->hdr.cmd_line_ptr;

	cmd_line_ptr |= (u64)real_mode->ext_cmd_line_ptr << 32;

	return cmd_line_ptr;
}
int cmdline_find_option(const char *option, char *buffer, int bufsize)
{
	return __cmdline_find_option(get_cmd_line_ptr(), option, buffer, bufsize);
}
int cmdline_find_option_bool(const char *option)
{
	return __cmdline_find_option_bool(get_cmd_line_ptr(), option);
}

#endif