menu "Kernel hacking" config TRACE_IRQFLAGS_SUPPORT	bool	default y source "lib/Kconfig.debug" config EARLY_PRINTK	bool "Early printk" if EXPERT	depends on SYS_HAS_EARLY_PRINTK	default y	help	  This option enables special console drivers which allow the kernel	  to print messages very early in the bootup process. 	  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 on some machines and	  doesn't cooperate with an X server. You should normally say N here,	  unless you want to debug such a crash. config EARLY_PRINTK_8250	bool "8250/16550 and compatible serial early printk driver"	depends on EARLY_PRINTK	default n	help	  If you say Y here, it will be possible to use a 8250/16550 serial	  port as the boot console. config CMDLINE_BOOL	bool "Built-in kernel command line"	default n	help	  For most systems, it is firmware or second stage bootloader that	  by default specifies the kernel command line options.  However,	  it might be necessary or advantageous to either override the	  default kernel command line or add a few extra options to it.	  For such cases, this option allows you to hardcode your own	  command line options directly into the kernel.  For that, you	  should choose 'Y' here, and fill in the extra boot arguments	  in CONFIG_CMDLINE. 	  The built-in options will be concatenated to the default command	  line if CMDLINE_OVERRIDE is set to 'N'. Otherwise, the default	  command line will be ignored and replaced by the built-in string. 	  Most MIPS systems will normally expect 'N' here and rely upon	  the command line from the firmware or the second-stage bootloader. config CMDLINE	string "Default kernel command string"	depends on CMDLINE_BOOL	default ""	help	  On some platforms, there is currently no way for the boot loader to	  pass arguments to the kernel.  For these platforms, and for the cases	  when you want to add some extra options to the command line or ignore	  the default command line, you can supply some command-line options at	  build time by entering them here.  In other cases you can specify	  kernel args so that you don't have to set them up in board prom	  initialization routines. 	  For more information, see the CMDLINE_BOOL and CMDLINE_OVERRIDE	  options. config CMDLINE_OVERRIDE	bool "Built-in command line overrides firmware arguments"	default n	depends on CMDLINE_BOOL	help	  By setting this option to 'Y' you will have your kernel ignore	  command line arguments from firmware or second stage bootloader.	  Instead, the built-in command line will be used exclusively. 	  Normally, you will choose 'N' here. config SMTC_IDLE_HOOK_DEBUG	bool "Enable additional debug checks before going into CPU idle loop"	depends on DEBUG_KERNEL && MIPS_MT_SMTC	help	  This option enables Enable additional debug checks before going into	  CPU idle loop.  For details on these checks, see	  arch/mips/kernel/smtc.c.  This debugging option result in significant	  overhead so should be disabled in production kernels. config SB1XXX_CORELIS	bool "Corelis Debugger"	depends on SIBYTE_SB1xxx_SOC	select DEBUG_INFO	help	  Select compile flags that produce code that can be processed by the	  Corelis mksym utility and UDB Emulator. config RUNTIME_DEBUG	bool "Enable run-time debugging"	depends on DEBUG_KERNEL	help	  If you say Y here, some debugging macros will do run-time checking.	  If you say N here, those macros will mostly turn to no-ops.  See	  arch/mips/include/asm/debug.h for debugging macros.	  If unsure, say N. config DEBUG_ZBOOT	bool "Enable compressed kernel support debugging"	depends on DEBUG_KERNEL && SYS_SUPPORTS_ZBOOT	default n	help	  If you want to add compressed kernel support to a new board, and the	  board supports uart16550 compatible serial port, please select	  SYS_SUPPORTS_ZBOOT_UART16550 for your board and enable this option to	  debug it. 	  If your board doesn't support uart16550 compatible serial port, you	  can try to select SYS_SUPPORTS_ZBOOT and use the other methods to	  debug it. for example, add a new serial port support just as	  arch/mips/boot/compressed/uart-16550.c does. 	  After the compressed kernel support works, please disable this option	  to reduce the kernel image size and speed up the booting procedure a	  little. config SPINLOCK_TEST	bool "Enable spinlock timing tests in debugfs"	depends on DEBUG_FS	default n	help	  Add several files to the debugfs to test spinlock speed. endmenu