2005-04-16 15:20:36 -07:00
										 
									 
								 
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								menu "Kernel hacking"
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								source "lib/Kconfig.debug"
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								config GPROF
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									bool "Enable gprof support"
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									depends on DEBUG_INFO && FRAME_POINTER
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									help
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											2007-10-16 01:26:54 -07:00
										 
									 
								 
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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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											2008-02-04 22:30:38 -08:00
										 
									 
								 
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									  See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more
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									  details.
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											2005-04-16 15:20:36 -07:00
										 
									 
								 
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											2007-10-16 01:26:54 -07:00
										 
									 
								 
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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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												uml: throw out CONFIG_MODE_TT
This patchset throws out tt mode, which has been non-functional for a while.
This is done in phases, interspersed with code cleanups on the affected files.
The removal is done as follows:
	remove all code, config options, and files which depend on
CONFIG_MODE_TT
	get rid of the CHOOSE_MODE macro, which decided whether to
call tt-mode or skas-mode code, and replace invocations with their
skas portions
	replace all now-trivial procedures with their skas equivalents
There are now a bunch of now-redundant pieces of data structures, including
mode-specific pieces of the thread structure, pt_regs, and mm_context.  These
are all replaced with their skas-specific contents.
As part of the ongoing style compliance project, I made a style pass over all
files that were changed.  There are three such patches, one for each phase,
covering the files affected by that phase but no later ones.
I noticed that we weren't freeing the LDT state associated with a process when
it exited, so that's fixed in one of the later patches.
The last patch is a tidying patch which I've had for a while, but which caused
inexplicable crashes under tt mode.  Since that is no longer a problem, this
can now go in.
This patch:
Start getting rid of tt mode support.
This patch throws out CONFIG_MODE_TT and all config options, code, and files
which depend on it.
CONFIG_MODE_SKAS is gone and everything that depends on it is included
unconditionally.
The few changed lines are in re-written Kconfig help, lines which needed
something skas-related removed from them, and a few more which weren't
strictly deletions.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
											
										 
										
											2007-10-16 01:26:50 -07:00
										 
									 
								 
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									depends on DEBUG_INFO
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									help
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											2007-10-16 01:26:54 -07:00
										 
									 
								 
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									  This option allows developers to retrieve coverage data from a UML
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									  session.
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											2005-04-16 15:20:36 -07:00
										 
									 
								 
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											2008-02-04 22:30:38 -08:00
										 
									 
								 
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									  See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more
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											2007-10-16 01:26:54 -07:00
										 
									 
								 
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									  details.
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											2005-04-16 15:20:36 -07:00
										 
									 
								 
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											2007-10-16 01:26:54 -07:00
										 
									 
								 
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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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											2005-04-16 15:20:36 -07:00
										 
									 
								 
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											2007-07-15 23:38:48 -07:00
										 
									 
								 
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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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											2005-04-16 15:20:36 -07:00
										 
									 
								 
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								endmenu
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