cmdline.c 750 字节
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#include "misc.h"

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#ifdef CONFIG_EARLY_PRINTK

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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"
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static unsigned long get_cmd_line_ptr(void)
{
	unsigned long cmd_line_ptr = real_mode->hdr.cmd_line_ptr;

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

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