1# SPDX-License-Identifier: GPL-2.0 2menu "Kernel hacking" 3 4source "lib/Kconfig.debug" 5 6config BOOTPARAM 7 bool 'Compiled-in Kernel Boot Parameter' 8 9config BOOTPARAM_STRING 10 string 'Kernel Boot Parameter' 11 default 'console=ttyS0,19200' 12 depends on BOOTPARAM 13 14config EARLY_PRINTK 15 bool "Early printk" 16 depends on !(SUN3 || M68000 || COLDFIRE) 17 help 18 Write kernel log output directly to a serial port. 19 Where implemented, output goes to the framebuffer as well. 20 PROM console functionality on Sun 3x is not affected by this option. 21 22 Pass "earlyprintk" on the kernel command line to get a 23 boot console. 24 25 This is useful for kernel debugging when your machine crashes very 26 early, i.e. before the normal console driver is loaded. 27 You should normally say N here, unless you want to debug such a crash. 28 29if !MMU 30 31config FULLDEBUG 32 bool "Full Symbolic/Source Debugging support" 33 help 34 Enable debugging symbols on kernel build. 35 36config HIGHPROFILE 37 bool "Use fast second timer for profiling" 38 depends on COLDFIRE 39 help 40 Use a fast secondary clock to produce profiling information. 41 42config NO_KERNEL_MSG 43 bool "Suppress Kernel BUG Messages" 44 help 45 Do not output any debug BUG messages within the kernel. 46 47config BDM_DISABLE 48 bool "Disable BDM signals" 49 depends on COLDFIRE 50 help 51 Disable the ColdFire CPU's BDM signals. 52 53endif 54 55endmenu 56