1menu "Kernel hacking" 2 3source "lib/Kconfig.debug" 4 5config GPROF 6 bool "Enable gprof support" 7 depends on DEBUG_INFO && FRAME_POINTER 8 help 9 This allows profiling of a User-Mode Linux kernel with the gprof 10 utility. 11 12 See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more 13 details. 14 15 If you're involved in UML kernel development and want to use gprof, 16 say Y. If you're unsure, say N. 17 18config GCOV 19 bool "Enable gcov support" 20 depends on DEBUG_INFO 21 help 22 This option allows developers to retrieve coverage data from a UML 23 session. 24 25 See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more 26 details. 27 28 If you're involved in UML kernel development and want to use gcov, 29 say Y. If you're unsure, say N. 30 31config EARLY_PRINTK 32 bool "Early printk" 33 default y 34 ---help--- 35 Write kernel log output directly to stdout. 36 37 This is useful for kernel debugging when your machine crashes very 38 early before the console code is initialized. 39 40endmenu 41