1menu "Kernel hacking" 2 3source "lib/Kconfig.debug" 4 5config CMDLINE_ON_HOST 6 bool "Show command line arguments on the host in TT mode" 7 depends on MODE_TT 8 default !DEBUG_INFO 9 help 10 This controls whether arguments in guest processes should be shown on 11 the host's ps output. 12 Enabling this option hinders debugging on some recent GDB versions 13 (because GDB gets "confused" when we do an execvp()). So probably you 14 should disable it. 15 16config PT_PROXY 17 bool "Enable ptrace proxy" 18 depends on XTERM_CHAN && DEBUG_INFO && MODE_TT 19 help 20 This option enables a debugging interface which allows gdb to debug 21 the kernel without needing to actually attach to kernel threads. 22 If you want to do kernel debugging, say Y here; otherwise say N. 23 24config GPROF 25 bool "Enable gprof support" 26 depends on DEBUG_INFO && MODE_SKAS && !MODE_TT 27 help 28 This allows profiling of a User-Mode Linux kernel with the gprof 29 utility. 30 31 See <http://user-mode-linux.sourceforge.net/gprof.html> for more 32 details. 33 34 If you're involved in UML kernel development and want to use gprof, 35 say Y. If you're unsure, say N. 36 37config GCOV 38 bool "Enable gcov support" 39 depends on DEBUG_INFO && MODE_SKAS 40 help 41 This option allows developers to retrieve coverage data from a UML 42 session. 43 44 See <http://user-mode-linux.sourceforge.net/gprof.html> for more 45 details. 46 47 If you're involved in UML kernel development and want to use gcov, 48 say Y. If you're unsure, say N. 49 50config DEBUG_STACK_USAGE 51 bool "Stack utilization instrumentation" 52 default N 53 help 54 Track the maximum kernel stack usage - this will look at each 55 kernel stack at process exit and log it if it's the deepest 56 stack seen so far. 57 58 This option will slow down process creation and destruction somewhat. 59endmenu 60