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* kbuild: fixdep: support concatenated dep filesStephen Warren2013-04-051-32/+61
| | | | | | | | | | | | | | | | | | | | | | | | | The current use-case for fixdep is: a source file is run through a single processing step, which creates a single dependency file as a side-effect, which fixdep transforms into the file used by the kernel build process. In order to transparently run the C pre-processor on device-tree files, we wish to run both gcc -E and dtc on a source file in a single rule. This generates two dependency files, which must be transformed together into the file used by the kernel build process. This change modifies fixdep so it can process the concatenation of multiple separate input dependency files, and produce a correct unified output. The code changes have the slight benefit of transforming the loop in parse_dep_file() into more of a lexer/tokenizer, with the loop body being more of a parser. Previously, some of this logic was mixed together before the loop. I also added some comments, which I hope are useful. Benchmarking shows that on a cross-compiled ARM tegra_defconfig build, there is less than 0.5 seconds speed decrease with this change, on top of a build time of ~2m24s. This is probably within the noise. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Rob Herring <rob.herring@calxeda.com>
* treewide: Fix typo in various driversMasanari Iida2013-01-091-1/+1
| | | | | | | Correct spelling typo in printk within various drivers. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* fixdep: fix extraneous dependenciesPeter Foley2011-09-091-0/+1
| | | | | | | | | | | | | The introduction of include/linux/kconfig.h created 3 extraneous dependencies: include/config/.h include/config/h.h include/config/foo.h Fix this by excluding kconfig.h from fixdep calculations. Signed-off-by: Peter Foley <pefoley2@verizon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: move scripts/basic/docproc.c to scripts/docproc.cPeter Foley2011-05-023-587/+1
| | | | | Move docproc from scripts/basic to scripts so it is only built for *doc targets instead of every time the kernel is built.
* kbuild: Fix computing srcversion for modulesMichal Marek2011-03-131-6/+13
| | | | | | | | | | | | | | | | | | | Recent change to fixdep: commit b7bd182176960fdd139486cadb9962b39f8a2b50 Author: Michal Marek <mmarek@suse.cz> Date: Thu Feb 17 15:13:54 2011 +0100 fixdep: Do not record dependency on the source file itself changed the format of the *.cmd files without realizing that it is also used by modpost. Put the path to the source file to the file back, in a special variable, so that modpost sees all source files when calculating srcversion for modules. Reported-and-tested-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fixdep: Do not record dependency on the source file itselfMichal Marek2011-02-211-1/+11
| | | | | | | | | | | | | | | | The dependency is already expressed by the Makefiles, storing it in the .cmd file breaks build if a .c file is replaced by .S or vice versa, because the .cmd file contains foo/bar.o: foo/bar.c ... foo/bar.c ... : so the foo/bar.c -> foo/bar.o rule triggers even if there is no foo/bar.c anymore. Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Michal Marek <mmarek@suse.cz>
* Make fixdep error handling more explicitBen Gamari2010-12-221-3/+7
| | | | | | | Also add missing error handling to fstat call Signed-off-by: Ben Gamari <bgamari.foss@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* Merge commit 'v2.6.37-rc1' into kbuild/kbuildMichal Marek2010-12-143-66/+132
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| * Merge branch 'misc' of ↵Linus Torvalds2010-10-281-1/+4
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (39 commits) Revert "namespace: add source file location exceptions" Coccinelle: Add contextual message Coccinelle: Fix documentation Coccinelle: Find doubled arguments to boolean or bit operators. Coccinelle: Find nested lock+irqsave functions that use the same flags variables. namespace: add source file location exceptions scripts/extract-ikconfig: add support for bzip2, lzma and lzo kbuild: check return value of asprintf() scripts/namespace.pl: improve to get more correct results scripts/namespace.pl: some bug fixes scripts/namespace.pl: update file exclusion list scripts/namespace.pl: fix wrong source path Coccinelle: Use the -no_show_diff option for org and report mode Coccinelle: Add a new mode named 'chain' Coccinelle: Use new comment format to explain kfree.cocci Coccinelle: Improve user information with a new kind of comment Coccinelle: Update documentation MAINTAINERS: Coccinelle: Update email address Documentation/kbuild: modules.txt cleanup Documentation/kbuild: major edit of modules.txt sections 5-8 ...
| | * kbuild: check return value of asprintf()Namhyung Kim2010-10-281-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check return value of asprintf() in docsect() and exit if error occurs. This removes following warning: HOSTCC scripts/basic/docproc scripts/basic/docproc.c: In function ‘docsect’: scripts/basic/docproc.c:336: warning: ignoring return value of ‘asprintf’, declared with attribute warn_unused_result Signed-off-by: Namhyung Kim <namhyung@gmail.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
| * | jump label: Convert dynamic debug to use jump labelsJason Baron2010-09-222-65/+1
| |/ | | | | | | | | | | | | | | Convert the 'dynamic debug' infrastructure to use jump labels. Signed-off-by: Jason Baron <jbaron@redhat.com> LKML-Reference: <b77627358cea3e27d7be4386f45f66219afb8452.1284733808.git.jbaron@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * docbook: warn on unused doc entriesJohannes Berg2010-09-111-1/+128
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When you don't use !E or !I but only !F, then it's very easy to miss including some functions, structs etc. in documentation. To help finding which ones were missed, allow printing out the unused ones as warnings. For example, using this on mac80211 yields a lot of warnings like this: Warning: didn't use docs for DOC: mac80211 workqueue Warning: didn't use docs for ieee80211_max_queues Warning: didn't use docs for ieee80211_bss_change Warning: didn't use docs for ieee80211_bss_conf when generating the documentation for it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | fixdep: use hash table instead of a single arrayEric Dumazet2010-11-111-48/+61
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I noticed fixdep uses ~2% of cpu time in kernel build, in function use_config() fixdep spends a lot of cpu cycles in linear searches in its internal string array. With about 400 stored strings per dep file, this begins to be noticeable. Convert fixdep to use a hash table. kbuild results on my x86_64 allmodconfig Before patch : real 10m30.414s user 61m51.456s sys 8m28.200s real 10m12.334s user 61m50.236s sys 8m30.448s real 10m42.947s user 61m50.028s sys 8m32.380s After: real 10m8.180s user 61m22.506s sys 8m32.384s real 10m35.039s user 61m21.654s sys 8m32.212s real 10m14.487s user 61m23.498s sys 8m32.312s Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: move autoconf.h to include/generatedSam Ravnborg2009-12-121-5/+5
| | | | | Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-nextLinus Torvalds2009-09-233-32/+32
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (30 commits) Use macros for .data.page_aligned section. Use macros for .bss.page_aligned section. Use new __init_task_data macro in arch init_task.c files. kbuild: Don't define ALIGN and ENTRY when preprocessing linker scripts. arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0 kbuild: add static to prototypes kbuild: fail build if recordmcount.pl fails kbuild: set -fconserve-stack option for gcc 4.5 kbuild: echo the record_mcount command gconfig: disable "typeahead find" search in treeviews kbuild: fix cc1 options check to ensure we do not use -fPIC when compiling checkincludes.pl: add option to remove duplicates in place markup_oops: use modinfo to avoid confusion with underscored module names checkincludes.pl: provide usage helper checkincludes.pl: close file as soon as we're done with it ctags: usability fix kernel hacking: move STRIP_ASM_SYMS from General gitignore usr/initramfs_data.cpio.bz2 and usr/initramfs_data.cpio.lzma kbuild: Check if linker supports the -X option kbuild: introduce ld-option ... Fix trivial conflict in scripts/basic/fixdep.c
| * kbuild: add static to prototypesTrevor Keith2009-09-203-32/+32
| | | | | | | | | | | | | | | | | | Warnings found via gcc -Wmissing-prototypes. Signed-off-by: Trevor Keith <tsrk@tsrk.net> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* | trivial: kbuild: remove extraneous blank line after declaration of usage()Trevor Keith2009-09-211-1/+0
| | | | | | | | | | Signed-off-by: Trevor Keith <tsrk@tsrk.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | trivial: remove references to non-existent include/linux/config.hMarkus Heidelberg2009-09-211-2/+1
|/ | | | | | | | Ignore drivers/staging/ since it is very likely that new drivers introduce it again. Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* kbuild: fix build error during make htmldocsAmerigo Wang2009-06-201-1/+1
| | | | | | | | | | | | | Fix the following build error when do 'make htmldocs': DOCPROC Documentation/DocBook/debugobjects.xml exec /scripts/kernel-doc: No such file or directory exec /scripts/kernel-doc: No such file or directory Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: WANG Cong <amwang@redhat.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: fix a compile warningAmerigo Wang2009-06-141-2/+3
| | | | | | | | | | | | | | | gcc-4.4.1: HOSTCC scripts/basic/fixdep scripts/basic/fixdep.c: In function 'traps': scripts/basic/fixdep.c:377: warning: dereferencing type-punned pointer will break strict-aliasing rules scripts/basic/fixdep.c:379: warning: dereferencing type-punned pointer will break strict-aliasing rules (Apparently -fno-strict-aliasing will fix this too) Signed-off-by: WANG Cong <amwang@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: allow docproc invocation from externalJiri Slaby2009-06-091-4/+9
| | | | | | | | | | | | | | - getcwd returns path without a slash at the end, add the slash - add KBUILD_SRC env support, so that we can specify path for kernel (to know where scripts/kernel-doc resides) and SRCTREE (for searching files referenced in .tmpl) separately [v2] - use KBUILD_SRC instead of a newly introduced environment variable Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Update .gitignore files for generated targetsLinus Torvalds2008-10-201-1/+1
| | | | | | | The generated 'capflags.c' file wasn't properly ignored, and the list of files in scripts/basic/ wasn't up-to-date. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* driver core: basic infrastructure for per-module dynamic debug messagesJason Baron2008-10-162-1/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* kernel-doc: new P directive for DOC: sectionsJohannes Berg2008-01-281-1/+39
| | | | | | | | | | The !P directive includes the contents of a DOC: section given by title, e.g. !Pfilename Title of the section Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kernel-doc: use no-doc optionJohannes Berg2008-01-281-1/+3
| | | | | | | | | | | When asked by a template to include all functions from a file, it will also include DOC: sections wreaking havoc in the generated docbook file. This patch makes it use the new -no-doc-sections flag for kernel-doc to avoid this. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: stop docproc segfaulting when SRCTREE isn't set.Rob Landley2007-10-181-2/+9
| | | | | | | | Prevent docproc from segfaulting when SRCTREE isn't set. Signed-off-by: Rob Landley <rob@landley.net> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* docproc: style & typo cleanupsRandy Dunlap2007-10-122-20/+22
| | | | | | | | | - fix typos/spellos in docproc.c and Makefile - add a little whitespace {while, switch} (coding style) - use NULL instead of 0 for pointer testing Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Fix occurrences of "the the "Michael Opdenacker2007-05-091-1/+1
| | | | | Signed-off-by: Michael Opdenacker <michael@free-electrons.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* kbuild: scripts/basic/fixdep segfault on pathological string-o-deathAndy Green2007-05-021-0/+2
| | | | | | | | | | | | build scripts: fixdep blows segfault on string CONFIG_MODULE seen The string "CONFIG_MODULE" appearing anywhere in a source file causes fixdep to segfault. This string appeared in the wild in the current mISDN sources (I think they meant CONFIG_MODULES). But it shouldn't segfault (esp as CONFIG_MODULE appeared in a quoted string). Signed-off-by: Andy Green <andy@warmcat.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* [PATCH] kbuild: fix dependency generationJan Beulich2007-04-011-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | Commit 2e3646e51b2d6415549b310655df63e7e0d7a080 changed the way the split config tree is built, but failed to also adjust fixdep accordingly - if changing a config option from or to m, files referencing the respective CONFIG_..._MODULE (but not the corresponding CONFIG_...) didn't get rebuilt. The problem is that trisate symbol are represent with three different symbols: SYMBOL=n => no symbol defined SYMBOL=y => CONFIG_SYMBOL defined to '1' SYMBOL=m => CONFIG_SYMBOL_MODULE defined to '1' But conf_split_config do not distingush between the =y and =m case, so only the =y case is honoured. This is fixed in fixdep so when a CONFIG symbol with _MODULE is found we skip that part and only look for the CONFIG_SYMBOL version. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] update some docbook commentsRandy Dunlap2006-11-031-1/+1
| | | | | | | | | | | Correct a few comments in kernel-doc Doc and source files. (akpm: note: the patch removes a non-ascii character and might have to be applied by hand..) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] docbook: fix segfault in docproc.cHenrik Kretzschmar2006-09-291-0/+1
| | | | | | | | | | | Adds a missing exit, if the file that should be parsed couldn't be opened. Without it crashes with a segfault, cause the filedescriptor is accessed even if the file could not be opened. Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* kconfig: integrate split config into silentoldconfigRoman Zippel2006-06-092-230/+2
| | | | | | | | | | | | | Now that kconfig can load multiple configurations, it becomes simple to integrate the split config step, by simply comparing the new .config file with the old auto.conf (and then saving the new auto.conf). A nice side effect is that this saves a bit of disk space and cache, as no data needs to be read from or saved into the splitted config files anymore (e.g. include/config is now 648KB instead of 5.2MB). Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: consolidate command line escapingJan Beulich2006-02-191-12/+2
| | | | | | | | | | | | While the recent change to also escape # symbols when storing C-file compilation command lines was helpful, it should be in effect for all command lines, as much as the dollar escaping should be in effect for C-source compilation commands. Additionally, for better readability and maintenance, consolidating all the escaping (single quotes, dollars, and now sharps) was also desirable. Signed-Off-By: Jan Beulich <jbeulich@novell.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: escape '#' in .target.cmd filesSam Ravnborg2005-12-251-1/+14
| | | | | | | | Commandlines are contained in the .<target>.cmd files and in case they contain a '#' char make see this as start of comment. Teach fixdep to escape the '#' char so make will assing the full commandline. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Add some basic .gitignore filesLinus Torvalds2005-10-181-0/+3
| | | | | | | | This still leaves driver and architecture-specific subdirectories alone, but gets rid of the bulk of the "generic" generated files that we should ignore. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kill signed charsJ.A. Magallon2005-06-253-18/+18
| | | | | | | | | scripts/ is full of mismatches between char* params an signed char* arguments, and viceversa. gcc4 now complaints loud about this. Patch below deletes all those 'signed'. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2Linus Torvalds2005-04-164-0/+1032
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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