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menu "Kernel hacking"
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source "lib/Kconfig.debug"
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config CROSSCOMPILE
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bool "Are you using a crosscompiler"
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help
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Say Y here if you are compiling the kernel on a different
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architecture than the one it is intended to run on. This is just a
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convenience option which will select the appropriate value for
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the CROSS_COMPILE make variable which otherwise has to be passed on
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the command line from mips-linux-, mipsel-linux-, mips64-linux- and
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mips64el-linux- as appropriate for a particular kernel configuration.
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You will have to pass the value for CROSS_COMPILE manually if the
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name prefix for your tools is different.
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config CMDLINE
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string "Default kernel command string"
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default ""
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help
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On some platforms, there is currently no way for the boot loader to
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pass arguments to the kernel. For these platforms, you can supply
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some command-line options at build time by entering them here. In
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other cases you can specify kernel args so that you don't have
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to set them up in board prom initialization routines.
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config DEBUG_STACK_USAGE
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bool "Enable stack utilization instrumentation"
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depends on DEBUG_KERNEL
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help
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Enables the display of the minimum amount of free stack which each
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task has ever had available in the sysrq-T and sysrq-P debug output.
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This option will slow down process creation somewhat.
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config KGDB
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bool "Remote GDB kernel debugging"
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depends on DEBUG_KERNEL
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select DEBUG_INFO
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help
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If you say Y here, it will be possible to remotely debug the MIPS
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kernel using gdb. This enlarges your kernel image disk size by
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several megabytes and requires a machine with more than 16 MB,
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better 32 MB RAM to avoid excessive linking time. This is only
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useful for kernel hackers. If unsure, say N.
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config GDB_CONSOLE
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bool "Console output to GDB"
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depends on KGDB
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help
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If you are using GDB for remote debugging over a serial port and
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would like kernel messages to be formatted into GDB $O packets so
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that GDB prints them as program output, say 'Y'.
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config SB1XXX_CORELIS
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bool "Corelis Debugger"
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depends on SIBYTE_SB1xxx_SOC
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select DEBUG_INFO
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help
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Select compile flags that produce code that can be processed by the
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Corelis mksym utility and UDB Emulator.
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config RUNTIME_DEBUG
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bool "Enable run-time debugging"
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depends on DEBUG_KERNEL
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help
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If you say Y here, some debugging macros will do run-time checking.
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If you say N here, those macros will mostly turn to no-ops. See
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include/asm-mips/debug.h for debuging macros.
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If unsure, say N.
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config MIPS_UNCACHED
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bool "Run uncached"
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depends on DEBUG_KERNEL && !SMP && !SGI_IP27
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help
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If you say Y here there kernel will disable all CPU caches. This will
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reduce the system's performance dramatically but can help finding
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otherwise hard to track bugs. It can also useful if you're doing
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hardware debugging with a logic analyzer and need to see all traffic
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on the bus.
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endmenu
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