1# SPDX-License-Identifier: GPL-2.0 2 3config GPROF 4 bool "Enable gprof support" 5 depends on DEBUG_INFO && FRAME_POINTER 6 help 7 This allows profiling of a User-Mode Linux kernel with the gprof 8 utility. 9 10 See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more 11 details. 12 13 If you're involved in UML kernel development and want to use gprof, 14 say Y. If you're unsure, say N. 15 16config GCOV 17 bool "Enable gcov support" 18 depends on DEBUG_INFO 19 depends on !KCOV 20 help 21 This option allows developers to retrieve coverage data from a UML 22 session. 23 24 See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more 25 details. 26 27 If you're involved in UML kernel development and want to use gcov, 28 say Y. If you're unsure, say N. 29 30config EARLY_PRINTK 31 bool "Early printk" 32 default y 33 help 34 Write kernel log output directly to stdout. 35 36 This is useful for kernel debugging when your machine crashes very 37 early before the console code is initialized. 38