[GIT PATCHES] kbuild updates

[GIT PATCHES] kbuild updates

[Sam Ravnborg]

Hi Linus.

kbuild updates as accumulated over the last few months.
All patches has been in -mm in one or several versions.

Most noteworthy:
1) -Wundef added to CFLAGS. This is the cause of several new warnings,
   which for the most part has been fixed for now.
2) "PREEMPT" in UTS_VERSION. So we complain when dealing
   with modules compiled for a wrong kernel
3) Introduced Kbuild.include (the cause of most of
   the changes lines in top-level Makefile).
   It killed a lot of duplicate code
4) Introduce debug_kallsyms to better debug situations where
   kallsyms fails the consistency check
5) Added support for building rpm tarballs of source

Some of this was leftovers from my old bitkeeper tree, and authorship
is not correct due to wron cogito usage. The changelog message though 
attributes the correct author.

Please pull from:
www.kernel.org/pub/scm/linux/kernel/git/sam/kbuild.git

	Sam

Diffstat:
  
 Documentation/kbuild/makefiles.txt  |    6 +
 Makefile                            |  160 ++++++++++++++----------------------
 arch/m68knommu/Makefile             |    2 
 arch/mips/Makefile                  |    2 
 drivers/block/Kconfig               |   42 ---------
 include/asm-generic/vmlinux.lds.h   |    9 ++
 init/Kconfig                        |   22 ++++
 init/Makefile                       |    3 
 scripts/Kbuild.include              |   96 +++++++++++++++++++++
 scripts/Lindent                     |    2 
 scripts/Makefile.build              |    7 +
 scripts/Makefile.clean              |   14 +--
 scripts/Makefile.host               |    3 
 scripts/Makefile.lib                |   99 ----------------------
 scripts/Makefile.modinst            |    2 
 scripts/Makefile.modpost            |    1 
 scripts/conmakehash.c               |    2 
 scripts/kallsyms.c                  |    6 -
 scripts/kconfig/lkc.h               |    2 
 scripts/kconfig/menu.c              |    4 
 scripts/kconfig/zconf.tab.c_shipped |    8 -
 scripts/kconfig/zconf.y             |    8 -
 scripts/kernel-doc                  |    8 +
 scripts/lxdialog/dialog.h           |    2 
 scripts/lxdialog/inputbox.c         |    4 
 scripts/mkcompile_h                 |   12 +-
 scripts/mod/modpost.c               |    9 +-
 scripts/mod/sumversion.c            |    8 -
 scripts/package/Makefile            |   24 ++++-
 scripts/package/builddeb            |   56 +++++++++++-
 scripts/package/buildtar            |  111 ++++++++++++++++++++++++
 scripts/package/mkspec              |    9 ++
 scripts/reference_discarded.pl      |    1 
 scripts/reference_init.pl           |    1 
 scripts/setlocalversion             |   56 ++++++++++++
 usr/Kconfig                         |   46 ++++++++++
 usr/Makefile                        |    2 
 37 files changed, 555 insertions(+), 294 deletions(-)


Coywolf Qi Hunt:
  kbuild: make help binrpm-pkg fix

Fabio Massimo Di Nitto:
  kbuild: modpost needs to cope with new glibc elf header on sparc

Greg Edwards:
  kbuild: add ia64 support to rpm Makefile target

Ian Campbell:
  kbuild: allow cscope to index multiple architectures

J.A. Magallon:
  kbuild: signed char fixes for scripts

Jan-Benedict Glaw:
  kbuild: create tarballs

Jeff Mahoney:
  Lindent: ignore .indent.pro

Jesper Juhl:
  kallsyms: clarify KALLSYMS_ALL help text

Karl Hegbloom:
  kbuild: make 'cscope -q' play well with cscope.el

Keenan Pepper:
  kbuild: signed/unsigned char fix for make menuconfig

Matthias Urlichs:
  kbuild: obey HOSTLOADLIBES_programname for single-file compilation

Olaf Hering:
  kbuild: add -Wundef to global CFLAGS

Paolo 'Blaisorblade' Giarrusso:
  kbuild: describe Kbuild pitfall
  kconfig: trivial cleanup

Randy Dunlap:
  scripts/kernel-doc: don't use uninitialized SRCTREE

Ryan Anderson:
  kbuild: automatically append a short string to the version based upon the git commit

Sam Ravnborg:
  kbuild: Fix build as root then user
  buildcheck: reduce DEBUG_INFO noise from reference* scripts
  kbuild: Avoid inconsistent kallsyms data
  kbuild: "PREEMPT" in UTS_VERSION
  kbuild: Add target debug_kallsyms
  kbuild: fix buildcheck
  kbuild: Don't fail if include/asm symlink exists
  uml: Make deb-pkg build target build a Debian-style user-mode-linux package
  uml: Restore proper descriptions in make deb-pkg target
  kbuild: Fix bug in make deb-pkg when using seperate source and output directories
  kbuild: fix make O=... build
  kbuild: drop -Wundef from HOSTCFLAGS for now
  kbuild: drop descend - converting existing users
  kbuild: introduce Kbuild.include
  kbuild: fix make O=...
  kbuild: define clean before including kbuild file
  kbuild: KBUILD_VERBOSE was exported twice
  kbuild: pass less variables to second make invocation when using make O=...
  kbuild: silence mystery message
  kbuild: fix building external modules
  kbuild: fix make TAGS (for emacs use)
  kconfig: move initramfs options to General Setup

Tom Rini:
  kbuild: When checking depmod version, redirect stderr

Yum Rayan:
  kbuild: restrain output of "make help" to 80 columns

Re: [GIT PATCHES] kbuild updates

[Alistair John Strachan]

On Monday 05 September 2005 18:41, Sam Ravnborg wrote:
> Hi Linus.
>
> kbuild updates as accumulated over the last few months.
> All patches has been in -mm in one or several versions.
>
> Most noteworthy:
> 1) -Wundef added to CFLAGS. This is the cause of several new warnings,
>    which for the most part has been fixed for now.
> 2) "PREEMPT" in UTS_VERSION. So we complain when dealing
>    with modules compiled for a wrong kernel

How is this different from the preempt module vermagic?

~$ modinfo agpgart | grep vermagic
vermagic:       2.6.13 preempt gcc-4.0

> 3) Introduced Kbuild.include (the cause of most of
>    the changes lines in top-level Makefile).
>    It killed a lot of duplicate code
> 4) Introduce debug_kallsyms to better debug situations where
>    kallsyms fails the consistency check
> 5) Added support for building rpm tarballs of source
>
> Some of this was leftovers from my old bitkeeper tree, and authorship
> is not correct due to wron cogito usage. The changelog message though
> attributes the correct author.
>
> Please pull from:
> www.kernel.org/pub/scm/linux/kernel/git/sam/kbuild.git
>
> 	Sam
[snipped diffstat]

-- 
Cheers,
Alistair.

'No sense being pessimistic, it probably wouldn't work anyway.'
Third year Computer Science undergraduate.
1F2 55 South Clerk Street, Edinburgh, UK.

Re: [GIT PATCHES] kbuild updates

[Sam Ravnborg]

On Mon, Sep 05, 2005 at 08:35:14PM +0100, Alistair John Strachan wrote:
> On Monday 05 September 2005 18:41, Sam Ravnborg wrote:
> > Hi Linus.
> >
> > kbuild updates as accumulated over the last few months.
> > All patches has been in -mm in one or several versions.
> >
> > Most noteworthy:
> > 1) -Wundef added to CFLAGS. This is the cause of several new warnings,
> >    which for the most part has been fixed for now.
> > 2) "PREEMPT" in UTS_VERSION. So we complain when dealing
> >    with modules compiled for a wrong kernel
> 
> How is this different from the preempt module vermagic?
> 
> ~$ modinfo agpgart | grep vermagic
> vermagic:       2.6.13 preempt gcc-4.0

My bad. Adding PREEMT to UTS_VERSION makes it visible in uname -a.

	Sam

Re: [GIT PATCHES] kbuild updates

[Alistair John Strachan]

On Monday 05 September 2005 21:13, Sam Ravnborg wrote:
> On Mon, Sep 05, 2005 at 08:35:14PM +0100, Alistair John Strachan wrote:
> > On Monday 05 September 2005 18:41, Sam Ravnborg wrote:
> > > Hi Linus.
> > >
> > > kbuild updates as accumulated over the last few months.
> > > All patches has been in -mm in one or several versions.
> > >
> > > Most noteworthy:
> > > 1) -Wundef added to CFLAGS. This is the cause of several new warnings,
> > >    which for the most part has been fixed for now.
> > > 2) "PREEMPT" in UTS_VERSION. So we complain when dealing
> > >    with modules compiled for a wrong kernel
> >
> > How is this different from the preempt module vermagic?
> >
> > ~$ modinfo agpgart | grep vermagic
> > vermagic:       2.6.13 preempt gcc-4.0
>
> My bad. Adding PREEMT to UTS_VERSION makes it visible in uname -a.
>

I see. I can understand adding an extraversion for SMP and experimental 
patches (like Ingo's RT work), but why is it useful to differentiate (by 
name) between preempt and non-preempt kernels? Do distributors wish to 
package both in parallel?

-- 
Cheers,
Alistair.

'No sense being pessimistic, it probably wouldn't work anyway.'
Third year Computer Science undergraduate.
1F2 55 South Clerk Street, Edinburgh, UK.

Re: [GIT PATCHES] kbuild updates

[Sam Ravnborg]

> > > How is this different from the preempt module vermagic?
> > >
> > > ~$ modinfo agpgart | grep vermagic
> > > vermagic:       2.6.13 preempt gcc-4.0
> >
> > My bad. Adding PREEMT to UTS_VERSION makes it visible in uname -a.
> >
> 
> I see. I can understand adding an extraversion for SMP and experimental 
> patches (like Ingo's RT work), but why is it useful to differentiate (by 
> name) between preempt and non-preempt kernels? Do distributors wish to 
> package both in parallel?

PREEMPT is in UTS_VERSION for the same reason as being present in
vermagic. It is one of these options being so fundamentally that we like
to both test for it and to know it when runinng uname.

	Sam

Re: [GIT PATCHES] kbuild updates

[Matt Mackall]

On Mon, Sep 05, 2005 at 10:32:04PM +0100, Alistair John Strachan wrote:
> On Monday 05 September 2005 21:13, Sam Ravnborg wrote:
> > On Mon, Sep 05, 2005 at 08:35:14PM +0100, Alistair John Strachan wrote:
> > > On Monday 05 September 2005 18:41, Sam Ravnborg wrote:
> > > > Hi Linus.
> > > >
> > > > kbuild updates as accumulated over the last few months.
> > > > All patches has been in -mm in one or several versions.
> > > >
> > > > Most noteworthy:
> > > > 1) -Wundef added to CFLAGS. This is the cause of several new warnings,
> > > >    which for the most part has been fixed for now.
> > > > 2) "PREEMPT" in UTS_VERSION. So we complain when dealing
> > > >    with modules compiled for a wrong kernel
> > >
> > > How is this different from the preempt module vermagic?
> > >
> > > ~$ modinfo agpgart | grep vermagic
> > > vermagic:       2.6.13 preempt gcc-4.0
> >
> > My bad. Adding PREEMT to UTS_VERSION makes it visible in uname -a.
> >
> 
> I see. I can understand adding an extraversion for SMP and experimental 
> patches (like Ingo's RT work), but why is it useful to differentiate (by 
> name) between preempt and non-preempt kernels? Do distributors wish to 
> package both in parallel?

I created the patch so that it would show up in oops reports and
elsewhere and avoid the inevitable question "was this a preempt
kernel?"

-- 
Mathematics is the supreme nostalgia of our time.

[GIT PATCHES] kbuild updates

[Sam Ravnborg]

Hi Linus.

Please pull in a small number of kbuild updates.
The most important one is the "un-stringnify KBUILD_MODNAME".
It fixes a commandline parsing error, and let ls /sys/module look sane
again.

Pull from:

ssh://master.kernel.org/pub/scm/linux/kernel/git/sam/kbuild.git

All patches has been sent to lkml previously so they are not repeated
here.

	Sam

 .gitignore                              |    1 
 Documentation/kbuild/modules.txt        |   41 ++++++++++++++++++
 arch/x86_64/ia32/.gitignore             |    2 
 drivers/media/dvb/cinergyT2/cinergyT2.c |    2 
 drivers/media/dvb/ttpci/budget.h        |    2 
 drivers/media/video/tda9840.c           |    2 
 drivers/media/video/tea6415c.c          |    2 
 drivers/media/video/tea6420.c           |    2 
 include/linux/moduleparam.h             |    2 
 include/media/saa7146.h                 |    6 +-
 net/ipv4/netfilter/ip_nat_ftp.c         |    2 
 net/ipv4/netfilter/ip_nat_irc.c         |    2 
 scripts/kconfig/Makefile                |    9 +---
 scripts/setlocalversion                 |   71 ++++++++------------------------
 security/capability.c                   |    7 ---
 15 files changed, 76 insertions(+), 77 deletions(-)


Adrian Bunk:
      kconfig: fix gconfig with POSIXLY_CORRECT=1

Brian Gerst:
      gitignore: ignore shared objects

Rene Scharfe:
      kbuild: Use git in scripts/setlocalversion

Sam Ravnborg:
      kbuild: document howto build external modules using several directories
      kbuild: un-stringnify KBUILD_MODNAME

[GIT PATCHES] kbuild updates

[Sam Ravnborg]

Hi Linus.

Please pull from:
	ssh://master.kernel.org/pub/scm/linux/kernel/git/sam/kbuild.git

Important changes:
	o do not build vmlinux as part of make install.
	     Error out if file is missing
	o no longer use git as part of make install

The changes has not been in -mm, But most are trivial and it works for
me.
The lxdialog change is a preparation for linking in lxdialog with
menuconfig.

	Sam
	
 Documentation/kbuild/makefiles.txt         |    4 -
 Kbuild                                     |    6 -
 Makefile                                   |   99 +++++++++++++++--------------
 arch/frv/boot/Makefile                     |    5 -
 arch/i386/Makefile                         |    9 +-
 arch/i386/boot/Makefile                    |    2 
 arch/i386/boot/install.sh                  |   14 ++++
 arch/ia64/Makefile                         |    7 --
 arch/powerpc/Makefile                      |    6 -
 arch/ppc/Makefile                          |    4 -
 arch/x86_64/Makefile                       |    5 +
 arch/x86_64/boot/Makefile                  |    2 
 arch/x86_64/boot/install.sh                |   41 ------------
 fs/xfs/Kbuild                              |    7 +-
 scripts/kconfig/lxdialog/Makefile          |   48 +++-----------
 scripts/kconfig/lxdialog/check-lxdialog.sh |   68 +++++++++++++++++++
 scripts/mod/file2alias.c                   |    3 
 scripts/reference_discarded.pl             |    7 +-
 scripts/setlocalversion                    |    3 
 19 files changed, 182 insertions(+), 158 deletions(-)

Brian Gerst:
      kbuild: clean up asm-offsets.h creation
      modpost/file2alias: Fix typo

Dave Jones:
      kbuild: reference_discarded addition

H. Peter Anvin:
      kbuild: drop vmlinux dependency from "make install"

Ryan Anderson:
      kbuild: In setlocalversion change -git_dirty to just -dirty

Sam Ravnborg:
      kconfig: factor out ncurses check in a shell script
      kbuild: remove GCC_VERSION
      frv: Use KERNELRELEASE
      kbuild/xfs: introduce fs/xfs/Kbuild
      kbuild: KERNELRELEASE is only re-defined when buiding the kernel

Tore Anderson:
      kbuild: ensure mrproper removes .old_version

Re: [GIT PATCHES] kbuild updates

[Linus Torvalds]

On Mon, 9 Jan 2006, Sam Ravnborg wrote:
>
> Please pull from:
> 	ssh://master.kernel.org/pub/scm/linux/kernel/git/sam/kbuild.git

Ok, pulled.

However, fixing up a trivial conflict in i386/Makefile, I noticed this:

	cflags-$(CONFIG_REGPARM) += $(shell if [ $(call cc-version) -ge 0300 ] ; then \
				    echo "-mregparm=3"; fi ;)

and it strikes me that this is WRONG.

It's wrong for some subtle reasons: it means that CONFIG_REGPARM is set 
whether or not it is actually _used_, which means that anybody who depends 
on CONFIG_REGPARM in the sources is just screwed.

Now, for this particular usage, the only breakage is in the i386 
<asm/module.h>, which will report "REGPARM" in MODULE_REGPARM regardless 
of whether the kernel was compiled with -mregparm=3 or not. So it's mainly 
cosmetic.

But it strikes me that we'd be a _lot_ better off if the Kconfig phase 
would check the compiler version, instead of us checking it dynamically a 
hundred times in the Makefiles. It would be more efficient, and we could 
make things like this more _correct_. 

Comments?

		Linus

[GIT PATCHES] kbuild updates

[Sam Ravnborg]

Please pull following updates from the kbuild tree.

git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild.git

Part of this has been in -mm for a while. Other parts are rather new.

Noteworthy fixes:
o fix initramfs size. All files were included twice so it grow big
o kill several false positives among "section mismatch" warnings

Noteworthy changes:
o Roman Zippel's kconfig update - which also made some nice
  cleaning up in the top-level Makefile
o Support for generating export symbol statistics
  Build with MODVERSIONING and run "perl scripts/export_symbols"
o License compatibility check during build. Do not build
  GPL-incompatible moduels that included GPL only symbols.
  Also print aout warning if GPL_FUTURE is used by GPL-incompatible modules
o Support for symtypes files - so one can see what type a specific build
  uses compared to an older build
o Optionally strip modules while installing them

Shortlog + diffstat below.

	Sam

Al Viro:
      kbuild: kill some false positives from modpost

Andreas Gruenbacher:
      kbuild: support for %.symtypes files

Andrew Morton:
      kbuild: modpost build fix

Laurent Riffard:
      kbuild: fix module.symvers parsing in modpost

Masatake YAMATO:
      kbuild: adding symbols in Kconfig and defconfig to TAGS

Mike Wolf:
      kbuild: fix make rpm for powerpc

Nickolay:
      kbuild: bugfix with initramfs

Pavel Roskin:
      kbuild: obj-dirs is calculated incorrectly if hostprogs-y is defined

Ram Pai:
      kbuild: export-type enhancement to modpost.c
      kbuild: export-symbol usage report generator

Randy Dunlap:
      kbuild: ignore smp_locks section warnings from init/exit code
      kconfig: exit if no beginning filename

Roman Zippel:
      kconfig: improve config load/save output
      kconfig: fix .config dependencies
      kconfig: remove SYMBOL_{YES,MOD,NO}
      kconfig: allow multiple default values per symbol
      kconfig: allow loading multiple configurations
      kconfig: integrate split config into silentoldconfig
      kconfig: move .kernelrelease
      kconfig: add symbol option config syntax
      kconfig: add defconfig_list/module option
      kconfig: Add search option for xconfig
      kconfig: finer customization via popup menus
      kconfig: create links in info window
      kconfig: jump to linked menu prompt
      kconfig: warn about leading whitespace for menu prompts
      kconfig: remove leading whitespace in menu prompts
      kconfig: KCONFIG_OVERWRITECONFIG
      kbuild: `make kernelrelease' speedup
      kbuild: fix silentoldconfig recursion

Sam Ravnborg:
      kbuild: fix false section mismatch with ARCH=um build
      kbuild: check license compatibility when building modules
      kbuild: ignore make's built-in rules & variables
      kbuild: fix make -rR breakage
      kbuild: replace abort() with exit(1)
      kbuild: trivial fixes in Makefile

Theodore Ts'o:
      kbuild: add option for stripping modules while installing them

Uwe Zeisberger:
      kbuild: append git revision for all untagged commits
      kbuild: append -dirty for updated but uncommited changes

Zach Brown:
      kbuild: add dependency on kernel.release to the package targets

 Documentation/kbuild/makefiles.txt   |    8 
 Makefile                             |  223 ++++---
 arch/arm/Makefile                    |    2 
 arch/sh/Makefile                     |    4 
 arch/xtensa/Makefile                 |    2 
 drivers/mtd/Kconfig                  |    4 
 drivers/mtd/maps/Kconfig             |    2 
 drivers/scsi/Kconfig                 |   10 
 include/linux/license.h              |   14 
 init/Kconfig                         |    8 
 kernel/module.c                      |   11 
 scripts/Kbuild.include               |    5 
 scripts/Makefile.build               |   16 
 scripts/Makefile.host                |    6 
 scripts/Makefile.lib                 |    6 
 scripts/Makefile.modinst             |    2 
 scripts/Makefile.modpost             |    4 
 scripts/basic/Makefile               |    6 
 scripts/basic/split-include.c        |  226 -------
 scripts/export_report.pl             |  169 +++++
 scripts/genksyms/genksyms.c          |   77 +-
 scripts/genksyms/genksyms.h          |    1 
 scripts/genksyms/lex.c_shipped       |    2 
 scripts/genksyms/lex.l               |    2 
 scripts/kconfig/conf.c               |   23 
 scripts/kconfig/confdata.c           |  537 ++++++++++++-----
 scripts/kconfig/expr.c               |   53 -
 scripts/kconfig/expr.h               |   22 
 scripts/kconfig/gconf.c              |   12 
 scripts/kconfig/lex.zconf.c_shipped  |   91 +-
 scripts/kconfig/lkc.h                |   10 
 scripts/kconfig/lkc_proto.h          |    5 
 scripts/kconfig/menu.c               |   34 -
 scripts/kconfig/qconf.cc             | 1096 ++++++++++++++++++++++-------------
 scripts/kconfig/qconf.h              |  166 +++--
 scripts/kconfig/symbol.c             |   50 -
 scripts/kconfig/util.c               |    4 
 scripts/kconfig/zconf.gperf          |    3 
 scripts/kconfig/zconf.hash.c_shipped |  181 +++--
 scripts/kconfig/zconf.tab.c_shipped  |  930 +++++++++++++++++------------
 scripts/kconfig/zconf.y              |   33 +
 scripts/mod/mk_elfconfig.c           |    6 
 scripts/mod/modpost.c                |  181 +++++
 scripts/mod/modpost.h                |    4 
 scripts/package/mkspec               |    5 
 scripts/setlocalversion              |    4 
 sound/oss/Kconfig                    |    2 
 usr/Makefile                         |    3 
 48 files changed, 2672 insertions(+), 1593 deletions(-)