menu "Kernel hacking" source "lib/Kconfig.debug" config STRICT_DEVMEM	bool "Filter access to /dev/mem"	depends on MMU	---help---	  If this option is disabled, you allow userspace (root) access to all	  of memory, including kernel and userspace memory. Accidental	  access to this is obviously disastrous, but specific access can	  be used by people debugging the kernel. 	  If this option is switched on, the /dev/mem file only allows	  userspace access to memory mapped peripherals.           If in doubt, say Y. config EARLY_PRINTK	def_bool DEBUG_OCD	help	  Write kernel log output directly into the ocd or to a serial port. 	  This is useful for kernel debugging when your machine crashes very	  early before the console code is initialized. For normal operation	  it is not recommended because it looks ugly and doesn't cooperate	  with klogd/syslogd or the X server. You should normally N here,	  unless you want to debug such a crash. # These options are only for real kernel hackers who want to get their hands dirty.config DEBUG_LL	bool "Kernel low-level debugging functions"	depends on DEBUG_KERNEL	help	  Say Y here to include definitions of printascii, printch, printhex	  in the kernel.  This is helpful if you are debugging code that	  executes before the console is initialized. config DEBUG_OCD	bool "Kernel low-level debugging via On-Chip-Debugger"	depends on DEBUG_LL	default y	help	  Say Y here if you want the debug print routines to direct their	  output to the UniCore On-Chip-Debugger channel using CP #1. endmenu