2005-04-17 05:20:36 +07:00
|
|
|
menu "Kernel hacking"
|
|
|
|
|
|
|
|
source "lib/Kconfig.debug"
|
|
|
|
|
|
|
|
config GPROF
|
|
|
|
bool "Enable gprof support"
|
2008-02-05 13:30:42 +07:00
|
|
|
depends on DEBUG_INFO && FRAME_POINTER
|
2005-04-17 05:20:36 +07:00
|
|
|
help
|
2007-10-16 15:26:54 +07:00
|
|
|
This allows profiling of a User-Mode Linux kernel with the gprof
|
|
|
|
utility.
|
2005-04-17 05:20:36 +07:00
|
|
|
|
2008-02-05 13:30:38 +07:00
|
|
|
See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more
|
2007-10-16 15:26:54 +07:00
|
|
|
details.
|
2005-04-17 05:20:36 +07:00
|
|
|
|
2007-10-16 15:26:54 +07:00
|
|
|
If you're involved in UML kernel development and want to use gprof,
|
|
|
|
say Y. If you're unsure, say N.
|
2005-04-17 05:20:36 +07:00
|
|
|
|
|
|
|
config GCOV
|
|
|
|
bool "Enable gcov support"
|
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 15:26:50 +07:00
|
|
|
depends on DEBUG_INFO
|
2005-04-17 05:20:36 +07:00
|
|
|
help
|
2007-10-16 15:26:54 +07:00
|
|
|
This option allows developers to retrieve coverage data from a UML
|
|
|
|
session.
|
2005-04-17 05:20:36 +07:00
|
|
|
|
2008-02-05 13:30:38 +07:00
|
|
|
See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more
|
2007-10-16 15:26:54 +07:00
|
|
|
details.
|
2005-04-17 05:20:36 +07:00
|
|
|
|
2007-10-16 15:26:54 +07:00
|
|
|
If you're involved in UML kernel development and want to use gcov,
|
|
|
|
say Y. If you're unsure, say N.
|
2005-04-17 05:20:36 +07:00
|
|
|
|
2007-07-16 13:38:48 +07:00
|
|
|
config DEBUG_STACK_USAGE
|
|
|
|
bool "Stack utilization instrumentation"
|
|
|
|
default N
|
|
|
|
help
|
|
|
|
Track the maximum kernel stack usage - this will look at each
|
|
|
|
kernel stack at process exit and log it if it's the deepest
|
|
|
|
stack seen so far.
|
|
|
|
|
|
|
|
This option will slow down process creation and destruction somewhat.
|
2005-04-17 05:20:36 +07:00
|
|
|
endmenu
|