tmp_suning_uos_patched/scripts
Jason Baron 346e15beb5 driver core: basic infrastructure for per-module dynamic debug messages
Base infrastructure to enable per-module debug messages.

I've introduced CONFIG_DYNAMIC_PRINTK_DEBUG, which when enabled centralizes
control of debugging statements on a per-module basis in one /proc file,
currently, <debugfs>/dynamic_printk/modules. When, CONFIG_DYNAMIC_PRINTK_DEBUG,
is not set, debugging statements can still be enabled as before, often by
defining 'DEBUG' for the proper compilation unit. Thus, this patch set has no
affect when CONFIG_DYNAMIC_PRINTK_DEBUG is not set.

The infrastructure currently ties into all pr_debug() and dev_dbg() calls. That
is, if CONFIG_DYNAMIC_PRINTK_DEBUG is set, all pr_debug() and dev_dbg() calls
can be dynamically enabled/disabled on a per-module basis.

Future plans include extending this functionality to subsystems, that define 
their own debug levels and flags.

Usage:

Dynamic debugging is controlled by the debugfs file, 
<debugfs>/dynamic_printk/modules. This file contains a list of the modules that
can be enabled. The format of the file is as follows:

	<module_name> <enabled=0/1>
		.
		.
		.

	<module_name> : Name of the module in which the debug call resides
	<enabled=0/1> : whether the messages are enabled or not

For example:

	snd_hda_intel enabled=0
	fixup enabled=1
	driver enabled=0

Enable a module:

	$echo "set enabled=1 <module_name>" > dynamic_printk/modules

Disable a module:

	$echo "set enabled=0 <module_name>" > dynamic_printk/modules

Enable all modules:

	$echo "set enabled=1 all" > dynamic_printk/modules

Disable all modules:

	$echo "set enabled=0 all" > dynamic_printk/modules

Finally, passing "dynamic_printk" at the command line enables
debugging for all modules. This mode can be turned off via the above
disable command.

[gkh: minor cleanups and tweaks to make the build work quietly]

Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16 09:24:47 -07:00
..
basic driver core: basic infrastructure for per-module dynamic debug messages 2008-10-16 09:24:47 -07:00
genksyms kbuild: genksyms: Include extern information in dumps 2008-07-31 23:01:31 +02:00
kconfig kconfig: readd lost change count 2008-09-29 08:03:01 -07:00
ksymoops Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mod modpost: add support for hid 2008-10-14 23:50:47 +02:00
package Kbuild: Fix deb-pkg target to work with kernel versions ending with -<text-without-digit> 2008-02-09 10:51:47 +01:00
rt-tester [PATCH] rtmutex: Modify rtmutex-tester to test the setscheduler propagation 2006-06-27 17:32:47 -07:00
selinux SELinux: add gitignore file for mdp script 2008-09-05 21:43:38 +10:00
.gitignore Add binoffset to gitignore 2008-02-09 10:43:58 +01:00
bin2c.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binoffset.c update the email address of Randy Dunlap 2006-01-03 13:37:51 +01:00
bloat-o-meter fix bloat-o-meter for ppc64 2007-12-17 19:28:17 -08:00
bootgraph.pl fastboot: Fix bootgraph.pl initcall name regexp 2008-10-12 08:07:44 -07:00
checkincludes.pl Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
checkkconfigsymbols.sh kbuild: script to check for undefined Kconfig symbols 2007-10-12 21:13:50 +02:00
checkpatch.pl checkpatch: version 0.21 2008-07-24 10:47:27 -07:00
checkstack.pl [S390] Fix checkstack for s390 2008-10-10 21:34:03 +02:00
checksyscalls.sh i386/x86_64: move headers to include/asm-x86 2007-10-11 11:20:03 +02:00
checkversion.pl kbuild: introduce utsrelease.h 2006-07-03 23:30:54 +02:00
cleanfile scripts: Make cleanfile/cleanpatch warn about long lines 2007-07-16 21:15:50 +02:00
cleanpatch scripts: Make cleanfile/cleanpatch warn about long lines 2007-07-16 21:15:50 +02:00
conmakehash.c [PATCH] kbuild: signed char fixes for scripts 2005-07-27 22:27:08 +02:00
decodecode Mark 'scripts/decodecode' executable 2008-05-30 14:02:21 -07:00
diffconfig kconfig: add diffconfig utility 2008-07-25 22:12:41 +02:00
export_report.pl kbuild: fix perl usage in export_report.pl 2007-10-12 21:13:50 +02:00
extract-ikconfig [PATCH] extract-ikconfig: don't use --long-options 2006-03-24 07:33:21 -08:00
gcc-version.sh kbuild: fix buglet in gcc-version.sh 2008-01-28 23:14:36 +01:00
gcc-x86_64-has-stack-protector.sh [PATCH] Add the -fstack-protector option to the CFLAGS 2006-09-26 10:52:39 +02:00
gen_initramfs_list.sh kbuild: fix unportability in gen_initramfs_list.sh 2008-04-28 22:50:51 +02:00
headers_check.pl kbuild: optimize headers_* targets 2008-07-25 22:12:16 +02:00
headers_install.pl kbuild: install all headers when arch is changed 2008-07-25 22:12:18 +02:00
headers.sh kbuild: prepare headers_* for arch/$ARCH/include 2008-07-25 22:12:33 +02:00
kallsyms.c kbuild: filter away debug symbols from kernel symbols 2008-05-19 20:07:58 +02:00
Kbuild.include kbuild: fix cc-option and cc-option-yn 2008-09-09 11:52:33 -07:00
kernel-doc kernel-doc: allow structs whose members are all private 2008-09-23 08:09:13 -07:00
Lindent scripts/Lindent: support gnu indent v2.2.10 2008-04-29 08:06:04 -07:00
Makefile selinux: add support for installing a dummy policy (v2) 2008-08-27 08:54:08 +10:00
Makefile.build kbuild: fix some minor typoes 2008-04-25 20:18:48 +02:00
Makefile.clean kbuild: fix some minor typoes 2008-04-25 20:18:48 +02:00
Makefile.fwinst firmware: silence __fw_modbuild and __fw_modinst 'Nothing to be done' messages 2008-08-02 07:52:29 +01:00
Makefile.headersinst kbuild: install all headers when arch is changed 2008-07-25 22:12:18 +02:00
Makefile.host kbuild: fix some minor typoes 2008-04-25 20:18:48 +02:00
Makefile.lib driver core: basic infrastructure for per-module dynamic debug messages 2008-10-16 09:24:47 -07:00
Makefile.modinst kbuild: fix installing external modules 2008-01-28 23:14:36 +01:00
Makefile.modpost markers: fix duplicate modpost entry 2008-07-22 09:59:41 -07:00
makelst kbuild: introduce ccflags-y, asflags-y and ldflags-y 2007-10-15 22:25:06 +02:00
mkcompile_h kbuild: override build timestamp & version 2007-05-02 20:58:09 +02:00
mkmakefile kbuild: scripts/mkmakefile: dynamic determination of output directory 2008-01-28 23:14:38 +01:00
mksysmap kbuild: filter away debug symbols from kernel symbols 2008-05-19 20:07:58 +02:00
mkuboot.sh kbuild/mkuboot.sh: allow spaces in CROSS_COMPILE 2007-05-02 20:58:10 +02:00
mkversion Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
namespace.pl x86: fixup the x86 namespace change in scripts/namespace.pl 2007-10-11 17:56:02 +02:00
patch-kernel bugfix for scripts/patch-kernel in 2.6 sublevel stepping 2008-08-06 22:11:33 +02:00
pnmtologo.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
profile2linkerlist.pl [PATCH] x86_64: Basic reorder infrastructure 2006-03-25 09:10:56 -08:00
setlocalversion setlocalversion: do not describe if there is nothing to describe 2008-07-25 22:12:53 +02:00
show_delta kbuild: fix mode of checkstack.pl and other files. 2006-04-11 13:37:07 +02:00
unifdef.c kbuild: replace use of strlcpy with a dedicated implmentation in unifdef 2006-09-25 09:00:00 +02:00
ver_linux kbuild: scripts/ver_linux: don't set PATH 2008-07-31 23:36:54 +02:00