core Directory Reference

Files
	kargs.c
	The kernel's command line: the arguments the boot loader passed, such as root=/dev/hda2 or apic=off.
	main.c
	The kernel's generic entry point, kmain().
	module.c
	The built-in modules: the drivers and filesystems that are part of the kernel.
	printk.c
	printk(): the kernel's messages.
	snprintf.c
	snprintf() and vsnprintf(): formatting into a buffer, with the formats printk() has: c, s, d and u (32-bit), ld and lu (64-bit), x and lx (hexadecimal), b (binary) and p.
	ssp.c
	What the compiler's stack protector (-fstack-protector) needs: the canary value it puts on the stack, and the function it calls when a function returns with that value overwritten.
	time.c
	The wall clock: the date and time of day.