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e18eecb8b3
Add generic exit-time stack-depth checking to CONFIG_DEBUG_STACK_USAGE. This also adds UML support. Tested on UML and i386. [akpm@linux-foundation.org: cleanups, speedups, tweaks] Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
59 lines
1.8 KiB
Text
59 lines
1.8 KiB
Text
menu "Kernel hacking"
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source "lib/Kconfig.debug"
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config CMDLINE_ON_HOST
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bool "Show command line arguments on the host in TT mode"
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depends on MODE_TT
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default !DEBUG_INFO
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help
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This controls whether arguments in guest processes should be shown on
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the host's ps output.
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Enabling this option hinders debugging on some recent GDB versions
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(because GDB gets "confused" when we do an execvp()). So probably you
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should disable it.
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config PT_PROXY
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bool "Enable ptrace proxy"
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depends on XTERM_CHAN && DEBUG_INFO && MODE_TT
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help
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This option enables a debugging interface which allows gdb to debug
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the kernel without needing to actually attach to kernel threads.
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If you want to do kernel debugging, say Y here; otherwise say N.
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config GPROF
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bool "Enable gprof support"
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depends on DEBUG_INFO && MODE_SKAS && !MODE_TT
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help
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This allows profiling of a User-Mode Linux kernel with the gprof
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utility.
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See <http://user-mode-linux.sourceforge.net/gprof.html> for more
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details.
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If you're involved in UML kernel development and want to use gprof,
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say Y. If you're unsure, say N.
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config GCOV
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bool "Enable gcov support"
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depends on DEBUG_INFO && MODE_SKAS
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help
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This option allows developers to retrieve coverage data from a UML
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session.
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See <http://user-mode-linux.sourceforge.net/gprof.html> for more
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details.
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If you're involved in UML kernel development and want to use gcov,
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say Y. If you're unsure, say N.
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config DEBUG_STACK_USAGE
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bool "Stack utilization instrumentation"
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default N
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help
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Track the maximum kernel stack usage - this will look at each
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kernel stack at process exit and log it if it's the deepest
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stack seen so far.
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This option will slow down process creation and destruction somewhat.
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endmenu
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