at v4.18 34 lines 1.1 kB view raw
1# SPDX-License-Identifier: GPL-2.0 2menu "Kernel hacking" 3 4source "lib/Kconfig.debug" 5 6config EARLY_PRINTK 7 def_bool DEBUG_OCD 8 help 9 Write kernel log output directly into the ocd or to a serial port. 10 11 This is useful for kernel debugging when your machine crashes very 12 early before the console code is initialized. For normal operation 13 it is not recommended because it looks ugly and doesn't cooperate 14 with klogd/syslogd or the X server. You should normally N here, 15 unless you want to debug such a crash. 16 17# These options are only for real kernel hackers who want to get their hands dirty. 18config DEBUG_LL 19 bool "Kernel low-level debugging functions" 20 depends on DEBUG_KERNEL 21 help 22 Say Y here to include definitions of printascii, printch, printhex 23 in the kernel. This is helpful if you are debugging code that 24 executes before the console is initialized. 25 26config DEBUG_OCD 27 bool "Kernel low-level debugging via On-Chip-Debugger" 28 depends on DEBUG_LL 29 default y 30 help 31 Say Y here if you want the debug print routines to direct their 32 output to the UniCore On-Chip-Debugger channel using CP #1. 33 34endmenu