arch/mips/Kconfig.debug

Source file repositories/reference/linux-study-clean/arch/mips/Kconfig.debug

File Facts

System
Linux kernel
Corpus path
arch/mips/Kconfig.debug
Extension
.debug
Size
5688 bytes
Lines
167
Domain
Architecture Layer
Bucket
arch/mips
Inferred role
Architecture Layer: arch/mips
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0

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
	depends on EARLY_PRINTK && USE_GENERIC_EARLY_PRINTK_8250
	default y
	help
	  "8250/16550 and compatible serial early printk driver"
	  If you say Y here, it will be possible to use a 8250/16550 serial
	  port as the boot console.

config USE_GENERIC_EARLY_PRINTK_8250
	bool

config CMDLINE_BOOL
	bool "Built-in kernel command line"
	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
	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"
	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.

Annotation

Implementation Notes