| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | menu "Kernel hacking" |
| 3 | |
| 4 | source "lib/Kconfig.debug" |
| 5 | |
| 6 | config GPROF |
| 7 | bool "Enable gprof support" |
| 8 | depends on DEBUG_INFO && FRAME_POINTER |
| 9 | help |
| 10 | This allows profiling of a User-Mode Linux kernel with the gprof |
| 11 | utility. |
| 12 | |
| 13 | See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more |
| 14 | details. |
| 15 | |
| 16 | If you're involved in UML kernel development and want to use gprof, |
| 17 | say Y. If you're unsure, say N. |
| 18 | |
| 19 | config GCOV |
| 20 | bool "Enable gcov support" |
| 21 | depends on DEBUG_INFO |
| 22 | depends on !KCOV |
| 23 | help |
| 24 | This option allows developers to retrieve coverage data from a UML |
| 25 | session. |
| 26 | |
| 27 | See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more |
| 28 | details. |
| 29 | |
| 30 | If you're involved in UML kernel development and want to use gcov, |
| 31 | say Y. If you're unsure, say N. |
| 32 | |
| 33 | config EARLY_PRINTK |
| 34 | bool "Early printk" |
| 35 | default y |
| 36 | ---help--- |
| 37 | Write kernel log output directly to stdout. |
| 38 | |
| 39 | This is useful for kernel debugging when your machine crashes very |
| 40 | early before the console code is initialized. |
| 41 | |
| 42 | endmenu |