1menu "Kernel hacking" 2 3config TRACE_IRQFLAGS_SUPPORT 4 bool 5 default y 6 7source "lib/Kconfig.debug" 8 9config CROSSCOMPILE 10 bool "Are you using a crosscompiler" 11 help 12 Say Y here if you are compiling the kernel on a different 13 architecture than the one it is intended to run on. This is just a 14 convenience option which will select the appropriate value for 15 the CROSS_COMPILE make variable which otherwise has to be passed on 16 the command line from mips-linux-, mipsel-linux-, mips64-linux- and 17 mips64el-linux- as appropriate for a particular kernel configuration. 18 You will have to pass the value for CROSS_COMPILE manually if the 19 name prefix for your tools is different. 20 21config CMDLINE 22 string "Default kernel command string" 23 default "" 24 help 25 On some platforms, there is currently no way for the boot loader to 26 pass arguments to the kernel. For these platforms, you can supply 27 some command-line options at build time by entering them here. In 28 other cases you can specify kernel args so that you don't have 29 to set them up in board prom initialization routines. 30 31config DEBUG_STACK_USAGE 32 bool "Enable stack utilization instrumentation" 33 depends on DEBUG_KERNEL 34 help 35 Enables the display of the minimum amount of free stack which each 36 task has ever had available in the sysrq-T and sysrq-P debug output. 37 38 This option will slow down process creation somewhat. 39 40config SMTC_IDLE_HOOK_DEBUG 41 bool "Enable additional debug checks before going into CPU idle loop" 42 depends on DEBUG_KERNEL && MIPS_MT_SMTC 43 help 44 This option enables Enable additional debug checks before going into 45 CPU idle loop. For details on these checks, see 46 arch/mips/kernel/smtc.c. This debugging option result in significant 47 overhead so should be disabled in production kernels. 48 49config KGDB 50 bool "Remote GDB kernel debugging" 51 depends on DEBUG_KERNEL && SYS_SUPPORTS_KGDB 52 select DEBUG_INFO 53 help 54 If you say Y here, it will be possible to remotely debug the MIPS 55 kernel using gdb. This enlarges your kernel image disk size by 56 several megabytes and requires a machine with more than 16 MB, 57 better 32 MB RAM to avoid excessive linking time. This is only 58 useful for kernel hackers. If unsure, say N. 59 60config SYS_SUPPORTS_KGDB 61 bool 62 63config GDB_CONSOLE 64 bool "Console output to GDB" 65 depends on KGDB 66 help 67 If you are using GDB for remote debugging over a serial port and 68 would like kernel messages to be formatted into GDB $O packets so 69 that GDB prints them as program output, say 'Y'. 70 71config SB1XXX_CORELIS 72 bool "Corelis Debugger" 73 depends on SIBYTE_SB1xxx_SOC 74 select DEBUG_INFO 75 help 76 Select compile flags that produce code that can be processed by the 77 Corelis mksym utility and UDB Emulator. 78 79config RUNTIME_DEBUG 80 bool "Enable run-time debugging" 81 depends on DEBUG_KERNEL 82 help 83 If you say Y here, some debugging macros will do run-time checking. 84 If you say N here, those macros will mostly turn to no-ops. See 85 include/asm-mips/debug.h for debuging macros. 86 If unsure, say N. 87 88config MIPS_UNCACHED 89 bool "Run uncached" 90 depends on DEBUG_KERNEL && !SMP && !SGI_IP27 91 help 92 If you say Y here there kernel will disable all CPU caches. This will 93 reduce the system's performance dramatically but can help finding 94 otherwise hard to track bugs. It can also useful if you're doing 95 hardware debugging with a logic analyzer and need to see all traffic 96 on the bus. 97 98endmenu 99