1 2config HAVE_ARCH_KGDB 3 bool 4 5menuconfig KGDB 6 bool "KGDB: kernel debugger" 7 depends on HAVE_ARCH_KGDB 8 depends on DEBUG_KERNEL && EXPERIMENTAL 9 help 10 If you say Y here, it will be possible to remotely debug the 11 kernel using gdb. It is recommended but not required, that 12 you also turn on the kernel config option 13 CONFIG_FRAME_POINTER to aid in producing more reliable stack 14 backtraces in the external debugger. Documentation of 15 kernel debugger is available at http://kgdb.sourceforge.net 16 as well as in DocBook form in Documentation/DocBook/. If 17 unsure, say N. 18 19if KGDB 20 21config KGDB_SERIAL_CONSOLE 22 tristate "KGDB: use kgdb over the serial console" 23 select CONSOLE_POLL 24 select MAGIC_SYSRQ 25 default y 26 help 27 Share a serial console with kgdb. Sysrq-g must be used 28 to break in initially. 29 30config KGDB_TESTS 31 bool "KGDB: internal test suite" 32 default n 33 help 34 This is a kgdb I/O module specifically designed to test 35 kgdb's internal functions. This kgdb I/O module is 36 intended to for the development of new kgdb stubs 37 as well as regression testing the kgdb internals. 38 See the drivers/misc/kgdbts.c for the details about 39 the tests. The most basic of this I/O module is to boot 40 a kernel boot arguments "kgdbwait kgdbts=V1F100" 41 42config KGDB_TESTS_ON_BOOT 43 bool "KGDB: Run tests on boot" 44 depends on KGDB_TESTS 45 default n 46 help 47 Run the kgdb tests on boot up automatically without the need 48 to pass in a kernel parameter 49 50config KGDB_TESTS_BOOT_STRING 51 string "KGDB: which internal kgdb tests to run" 52 depends on KGDB_TESTS_ON_BOOT 53 default "V1F100" 54 help 55 This is the command string to send the kgdb test suite on 56 boot. See the drivers/misc/kgdbts.c for detailed 57 information about other strings you could use beyond the 58 default of V1F100. 59 60config KGDB_LOW_LEVEL_TRAP 61 bool "KGDB: Allow debugging with traps in notifiers" 62 depends on X86 || MIPS 63 default n 64 help 65 This will add an extra call back to kgdb for the breakpoint 66 exception handler on which will will allow kgdb to step 67 through a notify handler. 68 69config KGDB_KDB 70 bool "KGDB_KDB: include kdb frontend for kgdb" 71 default n 72 help 73 KDB frontend for kernel 74 75config KDB_KEYBOARD 76 bool "KGDB_KDB: keyboard as input device" 77 depends on VT && KGDB_KDB 78 default n 79 help 80 KDB can use a PS/2 type keyboard for an input device 81 82endif # KGDB 83