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menu "Kernel hacking"
config TRACE_IRQFLAGS_SUPPORT
bool
default y
source "lib/Kconfig.debug"
config CROSSCOMPILE
bool "Are you using a crosscompiler"
help
Say Y here if you are compiling the kernel on a different
architecture than the one it is intended to run on. This is just a
convenience option which will select the appropriate value for
the CROSS_COMPILE make variable which otherwise has to be passed on
the command line from mips-linux-, mipsel-linux-, mips64-linux- and
mips64el-linux- as appropriate for a particular kernel configuration.
You will have to pass the value for CROSS_COMPILE manually if the
name prefix for your tools is different.
config CMDLINE
string "Default kernel command string"
default ""
help
On some platforms, there is currently no way for the boot loader to
pass arguments to the kernel. For these platforms, 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.
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
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 KGDB
bool "Remote GDB kernel debugging"
depends on DEBUG_KERNEL && SYS_SUPPORTS_KGDB
select DEBUG_INFO
help
If you say Y here, it will be possible to remotely debug the MIPS
kernel using gdb. This enlarges your kernel image disk size by
several megabytes and requires a machine with more than 16 MB,
better 32 MB RAM to avoid excessive linking time. This is only
useful for kernel hackers. If unsure, say N.
config SYS_SUPPORTS_KGDB
bool
config GDB_CONSOLE
bool "Console output to GDB"
depends on KGDB
help
If you are using GDB for remote debugging over a serial port and
would like kernel messages to be formatted into GDB $O packets so
that GDB prints them as program output, say 'Y'.
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
include/asm-mips/debug.h for debuging macros.
If unsure, say N.
config MIPS_UNCACHED
bool "Run uncached"
depends on DEBUG_KERNEL && !SMP && !SGI_IP27
help
If you say Y here there kernel will disable all CPU caches. This will
reduce the system's performance dramatically but can help finding
otherwise hard to track bugs. It can also useful if you're doing
hardware debugging with a logic analyzer and need to see all traffic
on the bus.
endmenu
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