1menu "Kernel hacking" 2 3config TRACE_IRQFLAGS_SUPPORT 4 bool 5 default y 6 7source "lib/Kconfig.debug" 8 9config CMDLINE 10 string "Default kernel command string" 11 default "" 12 help 13 On some platforms, there is currently no way for the boot loader to 14 pass arguments to the kernel. For these platforms, you can supply 15 some command-line options at build time by entering them here. In 16 other cases you can specify kernel args so that you don't have 17 to set them up in board prom initialization routines. 18 19config DEBUG_STACK_USAGE 20 bool "Enable stack utilization instrumentation" 21 depends on DEBUG_KERNEL 22 help 23 Enables the display of the minimum amount of free stack which each 24 task has ever had available in the sysrq-T and sysrq-P debug output. 25 26 This option will slow down process creation somewhat. 27 28config SMTC_IDLE_HOOK_DEBUG 29 bool "Enable additional debug checks before going into CPU idle loop" 30 depends on DEBUG_KERNEL && MIPS_MT_SMTC 31 help 32 This option enables Enable additional debug checks before going into 33 CPU idle loop. For details on these checks, see 34 arch/mips/kernel/smtc.c. This debugging option result in significant 35 overhead so should be disabled in production kernels. 36 37config KGDB 38 bool "Remote GDB kernel debugging" 39 depends on DEBUG_KERNEL && SYS_SUPPORTS_KGDB 40 select DEBUG_INFO 41 help 42 If you say Y here, it will be possible to remotely debug the MIPS 43 kernel using gdb. This enlarges your kernel image disk size by 44 several megabytes and requires a machine with more than 16 MB, 45 better 32 MB RAM to avoid excessive linking time. This is only 46 useful for kernel hackers. If unsure, say N. 47 48config SYS_SUPPORTS_KGDB 49 bool 50 51config GDB_CONSOLE 52 bool "Console output to GDB" 53 depends on KGDB 54 help 55 If you are using GDB for remote debugging over a serial port and 56 would like kernel messages to be formatted into GDB $O packets so 57 that GDB prints them as program output, say 'Y'. 58 59config SB1XXX_CORELIS 60 bool "Corelis Debugger" 61 depends on SIBYTE_SB1xxx_SOC 62 select DEBUG_INFO 63 help 64 Select compile flags that produce code that can be processed by the 65 Corelis mksym utility and UDB Emulator. 66 67config RUNTIME_DEBUG 68 bool "Enable run-time debugging" 69 depends on DEBUG_KERNEL 70 help 71 If you say Y here, some debugging macros will do run-time checking. 72 If you say N here, those macros will mostly turn to no-ops. See 73 include/asm-mips/debug.h for debuging macros. 74 If unsure, say N. 75 76config MIPS_UNCACHED 77 bool "Run uncached" 78 depends on DEBUG_KERNEL && !SMP && !SGI_IP27 79 help 80 If you say Y here there kernel will disable all CPU caches. This will 81 reduce the system's performance dramatically but can help finding 82 otherwise hard to track bugs. It can also useful if you're doing 83 hardware debugging with a logic analyzer and need to see all traffic 84 on the bus. 85 86endmenu 87