Commit Graph

462 Commits

Author SHA1 Message Date
Randy Dunlap
ea82c74093 [PATCH] kernel-doc: stricter function pointer recognition
Be more careful about function pointer args:
look for "(...*" instead of just "(".

This line in include/linux/input.h fools the current kernel-doc script
into deciding that this is a function pointer:

	unsigned long ffbit[NBITS(FF_MAX)];

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>
2006-12-07 08:39:41 -08:00
Valdis Kletnieks
319e799abb [PATCH] ver_linux additions
scripts/ver_linux needed some minor clean-ups, as follows:
1) Add reporting of actual oprofile release
2) Add reporting of actual wireless-tools release
3) Add reporting of actual pcmciautils release

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:38 -08:00
akpm@osdl.org
44ddc4f567 [PATCH] qconf: support old QT
Might make qconf compilable with qt-3.1 as well as qt-3.3

Cc: greg chesson <xtp@google.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:37 -08:00
Vivek Goyal
2c22d8baa9 [PATCH] relocatable kernel: Fix kallsyms on avr32 after relocatable kernel changes
o On some platforms like avr32, section init comes before .text and
  not necessarily a symbol's relative position w.r.t _text is positive.
  In such cases assembler detects the overflow and emits warning. This
  patch fixes it.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
2006-12-07 02:14:10 +01:00
Rusty Russell
139ec7c416 [PATCH] paravirt: Patch inline replacements for paravirt intercepts
It turns out that the most called ops, by several orders of magnitude,
are the interrupt manipulation ops.  These are obvious candidates for
patching, so mark them up and create infrastructure for it.

The method used is that the ops structure has a patch function, which
is called for each place which needs to be patched: this returns a
number of instructions (the rest are NOP-padded).

Usually we can spare a register (%eax) for the binary patched code to
use, but in a couple of critical places in entry.S we can't: we make
the clobbers explicit at the call site, and manually clobber the
allowed registers in debug mode as an extra check.

And:

Don't abuse CONFIG_DEBUG_KERNEL, add CONFIG_DEBUG_PARAVIRT.

And:

AK:  Fix warnings in x86-64 alternative.c build

And:

AK: Fix compilation with defconfig

And:

^From: Andrew Morton <akpm@osdl.org>

Some binutlises still like to emit references to __stop_parainstructions and
__start_parainstructions.

And:

AK: Fix warnings about unused variables when PARAVIRT is disabled.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
2006-12-07 02:14:08 +01:00
Eric W. Biederman
fd593d1277 [PATCH] relocatable kernel: Kallsyms generate relocatable symbols
Print the addresses of non-absolute symbols relative to _text
so that ld will generate relocations.  Allowing a relocatable
kernel to relocate them.  We can't actually use the symbol names
because kallsyms includes static symbols that are not exported
from their object files.

Add the _text symbol definitions to the architectures which don't
define it otherwise linker will fail.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
2006-12-07 02:14:04 +01:00
Roman Zippel
c154348f00 [PATCH] fix menuconfig colours with TERM=vt100
On Mon, 13 Nov 2006, Phil Oester wrote:
> In commit 350b5b7638, the default menuconfig
> color scheme was changed to bluetitle.  This breaks the highlighting
> of the selected item for me with TERM=vt100.  The only way I can see
> which item is selected is via:
>
>     make MENUCONFIG_COLOR=mono menuconfig
>
> Which restores the pre-2.6.19 white on black highlighting.

Fix.

Cc: Phil Oester <kernel@linuxace.com>
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-25 13:28:34 -08:00
Roman Zippel
f12aa70452 [PATCH] qconf: fix uninitialsied member
Fixes a segfault reported by Randy.

Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-25 13:28:34 -08:00
Thomas Chou
a26d79ca81 [PATCH] initramfs: handle more than one source dir or file list
Fix bug 7401.

Handle more than one source dir or file list to the initramfs gen scripts.

The Kconfig help for INITRAMFS_SOURCE claims that you can specify multiple
space-separated sources in order to allow unprivileged users to build an
image.  There are two bugs in the current implementation that prevent this
from working.

First, we pass "file1 dir2" to the gen_initramfs_list.sh script, which it
obviously can't open.

Second, gen_initramfs_list.sh -l outputs multiple definitions for
deps_initramfs -- one for each argument.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-25 13:28:33 -08:00
Franck Bui-Huu
5fd934a9a1 [PATCH] .gitignore: add miscellaneous files
Prevent git from reporting this useless status:

	On branch refs/heads/master
	Untracked files:
	  (use "git add" to add to commit)

	      TAGS
	      scripts/kconfig/lkc_defs.h
	      scripts/kconfig/qconf.moc
	nothing to commit

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-13 07:40:42 -08:00
Randy Dunlap
c612093836 [PATCH] update some docbook comments
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>
2006-11-03 12:27:56 -08:00
Benjamin Herrenschmidt
21c4ff80cb [POWERPC] Support feature fixups in modules
This patch adds support for feature fixups in modules. This involves
adding support for R_PPC64_REL64 relocs to the 64 bits module loader.
It also modifies modpost.c to ignore the powerpc fixup sections (or it
would warn when used in .init.text).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-25 11:54:13 +10:00
Greg Banks
3f3fd3c055 [PATCH] kbuild: allow multi-word $M in Makefile.modpost
Some people want to do crazy things like pass multiple directories as the
value of $(SUBDIRS) or $M.  Mostly this kinda works, except that
Makefile.modpost constructs a modpost commandline which fails modpost's
argument parsing.  This patch fixes that little wrinkle.

Signed-off-by: Greg Banks <gnb@melbourne.sgi.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-17 08:18:48 -07:00
David Woodhouse
308ba5fcf8 [PATCH] fix `make headers_install'
Fix this:

make[3]: *** No rule to make target
`/mnt/md0/devel/linux-git/include/linux/version.h', needed by
`/mnt/md0/devel/linux-git-obj/usr/include/linux/version.h'.  Stop.
make[2]: *** [linux] Error 2
make[1]: *** [headers_install] Error 2

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-17 08:18:44 -07:00
Randy Dunlap
272057447f [PATCH] kernel-doc: make parameter description indentation uniform
- In parameter descriptions, strip all whitespace between the parameter
  name (e.g., @len) and its description so that the description is
  indented uniformly in text and man page modes.  Previously, spaces
  or tabs (which are used for cleaner source code viewing) affected
  the produced output in a negative way.

Before (man mode):
       to            Destination address, in user space.
       from        Source address, in kernel space.
       n              Number of bytes to copy.

After (man mode):
       to          Destination address, in user space.
       from        Source address, in kernel space.
       n           Number of bytes to copy.

- Fix/clarify a few function description comments.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-11 11:14:24 -07:00
Randy Dunlap
32e794015a [PATCH] kernel-doc: drop various "inline" qualifiers
Drop __inline, __always_inline, and noinline in the produced kernel-doc
output, similar to other pseudo directives.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-11 11:14:24 -07:00
Luca Tettamanti
1db11ea65e [PATCH] Fix menuconfig build failure due to missing stdbool.h
scripts/kconfig/lxdialog/util.c fails to build because it uses
true/false without including stdbool.h:

kronos:~/src/linux-2.6$ make O=../linux-build-git menuconfig
  GEN     /home/kronos/src/linux-build/Makefile
  HOSTCC  scripts/kconfig/lxdialog/util.o
/home/kronos/src/linux-2.6/scripts/kconfig/lxdialog/util.c: In function 'set_classic_theme':
/home/kronos/src/linux-2.6/scripts/kconfig/lxdialog/util.c:68: error: 'true' undeclared (first use in this function)
/home/kronos/src/linux-2.6/scripts/kconfig/lxdialog/util.c:68: error: (Each undeclared identifier is reported only once
/home/kronos/src/linux-2.6/scripts/kconfig/lxdialog/util.c:68: error: for each function it appears in.)
/home/kronos/src/linux-2.6/scripts/kconfig/lxdialog/util.c:70: error: 'false' undeclared (first use in this function)
/home/kronos/src/linux-2.6/scripts/kconfig/lxdialog/util.c: In function 'set_blackbg_theme':
/home/kronos/src/linux-2.6/scripts/kconfig/lxdialog/util.c:101: error: 'true' undeclared (first use in this function)
/home/kronos/src/linux-2.6/scripts/kconfig/lxdialog/util.c:102: error: 'false' undeclared (first use in this function)
/home/kronos/src/linux-2.6/scripts/kconfig/lxdialog/util.c: In function 'set_bluetitle_theme':
/home/kronos/src/linux-2.6/scripts/kconfig/lxdialog/util.c:144: error: 'true' undeclared (first use in this function)
make[2]: *** [scripts/kconfig/lxdialog/util.o] Error 1
make[1]: *** [menuconfig] Error 2
make: *** [menuconfig] Error 2

Add <stdbool.h> to dialog.h to fix the breakage.

Signed-off-by: Luca Tettamanti <kronos.it@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-11 11:14:14 -07:00
Andrew Morton
4e776b1d5e [PATCH] hdrcheck permission fix
Don't require that scripts/hdrcheck.sh be executable - shit happens...

Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 07:55:12 -07:00
Rolf Eike Beer
a073a8bde4 Fix copy&waste bug in comment in scripts/kernel-doc
This is obviously copied from some lines before without proper fixing.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03 23:13:02 +02:00
Linus Torvalds
b4a9071af6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild:
  kbuild: trivial documentation fixes
  kconfig: fix saving alternate kconfig file in parent dir
  kbuild: make modpost processing configurable
  kconfig/menuconfig: do not let ncurses clutter screen on exit
  kconfig/lxdialog: clear long menu lines
  kbuild: do not build mconf & lxdialog unless needed
  kconfig/lxdialog: fix make mrproper
  kconfig/lxdialog: support resize
  kconfig/lxdialog: let <ESC><ESC> behave as expected
  kconfig/menuconfig: lxdialog is now built-in
  kconfig/lxdialog: add a new theme bluetitle which is now default
  kconfig/lxdialog: add support for color themes and add blackbg theme
  kconfig/lxdialog: refactor color support
2006-10-03 08:51:38 -07:00
Paul Mundt
ad7a3bf30c [PATCH] Add unifdef to gitignore
This seems to have been missed when unifdef went in
via Sam's tree..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02 19:46:55 -07:00
Sam Ravnborg
9a3d0fe84f kconfig: fix saving alternate kconfig file in parent dir
This fixes bugzilla entry: 7182
http://bugzilla.kernel.org/show_bug.cgi?id=7182

With this patch we no longer append the directory part twice
before saving the config file.
This patch has been sent to Roman Zippel for review with no feedback.
It is so obviously simple that this should be OK to apply it anyway.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-10-01 11:48:53 +02:00
Sam Ravnborg
ea837f1c05 kbuild: make modpost processing configurable
On request from Al Viro make modpost processing configurable.

KBUILD_MODPOST_WARN can be set to make modpost warn instead of
error out in case on unresolved symbols in final module link.

KBUILD_MODPOST_NOFINAL can be set to avoid the final and timeconsuming
.c file generation and link of .ko files. This is solely useful for
speeding up when doing compile checks with for example allmodconfig

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-10-01 11:35:24 +02:00
Ross Biro
f2443ab6c4 [PATCH] allow /proc/config.gz to be built as a module
The driver for /proc/config.gz consumes rather a lot of memory and it is in
fact possible to build it as a module.

In some ways this is a bit risky, because the .config which is used for
compiling kernel/configs.c isn't necessarily the same as the .config which was
used to build vmlinux.

But OTOH the potential memory savings are decent, and it'd be fairly dumb to
build your configs.o with a different .config.

Signed-off-by: Andrew Morton <akpm@google.com>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 00:39:20 -07:00
Sam Ravnborg
e94c5bde70 kconfig/menuconfig: do not let ncurses clutter screen on exit
Do not initialize ncurses twice - it causes unpredicable
results. My display was sometimes weird after running
make menuconfig and I had to execute 'reset' to properly
restore my display.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-30 11:19:20 +02:00
Sam Ravnborg
737ecae264 kconfig/lxdialog: clear long menu lines
Menulines that were wider than the available
line width is now properly null terminated.

While at it renamed the variable choice => line_y
so it better reflect the usage in do_print_item().

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-30 11:19:20 +02:00
Sam Ravnborg
c29121b787 kbuild: do not build mconf & lxdialog unless needed
Due to a limitation in kbuild all objects referred
by xxx-y or xxx-objs will be build when one of
the targets needs to e build.

This caused lxdialog to be build pulling in ncurses
that is not always available.
So avoid building mconf & lxdialog unless really needed.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-30 11:19:20 +02:00
Sam Ravnborg
903947d286 kconfig/lxdialog: fix make mrproper
No Makefile in scripts/kconfig/lxdialog anymore, so do not
go there during make mrproper.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-30 11:19:20 +02:00
Sam Ravnborg
c8dc68ad0f kconfig/lxdialog: support resize
In all dialogs now properly catch KEY_RESIZE and take proper action.
In mconf try to behave sensibly when a dialog routine returns
-ERRDISPLAYTOOSMALL.

The original check for a screnn size of 80x19 is kept for now.
It may make sense to remove it later, but thats anyway what
much text is adjusted for.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-30 11:19:20 +02:00
Sam Ravnborg
f3cbcdc955 kconfig/lxdialog: let <ESC><ESC> behave as expected
<ESC><ESC> is used to step one back in the dialogs.
When lxdialog became built-in pressing <ESC> once would cause one step back
and pressing <ESC><ESC> would cause two steps back.
This patch - based on concept from Roman Zippel <zippel@linux-m68k.org> -
makes one <ESC> a noop and pressing <ESC><ESC> will cause one step backward.

In addition the final yes/no dialog now has the option to go back to the
the kernel configuration. So if you get too far out you can now go back
to configuring the kernel without saving and starting all over again.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-30 11:19:20 +02:00
Sam Ravnborg
2982de6993 kconfig/menuconfig: lxdialog is now built-in
lxdialog was previously called as an external program causing screen
to flicker when used. With this patch lxdialog is now built-in.
It is loosly based om previous work by:  Petr Baudis <pasky@ucw.cz>

Following is a list of changes:
o Moved build of dialog routings to kconfig Makefile
o menubox + checklist uses a new item list to hold all menu items
o in util.c implmented helper function to deal with item list
o menubox now uses parameters to save scroll state (avoids temp file)
o textbox now get text to be displayed as parameter and not a file
o make sure to properly delete subwin's before main windows
o killed unused files: lxdialog.c msgbox.c
o modified return value for ESC to match direct calling
o in a few places the code has been adjusted to 80 char wide
o in textbox a small refactoring was made to make code remotely readable
o in mconf removed all unused stuff (functions/variables)

Following is a list of know short comings:
a) pressing ESC twice will be interpreted as two ESC presses
b) resize does not work. menuconfig needs to be restarted to be adjusted

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-30 11:19:19 +02:00
Sam Ravnborg
350b5b7638 kconfig/lxdialog: add a new theme bluetitle which is now default
The bluetitle theme is a slightly modified version of the colorscheme
that -mm users has been used to. The bluetitle is more readable especially
on some LCD screens so it is now default.
Anyone that really wants the old color selection can get it by selecting
the classic color theme:
make MENUCONFIG_COLOR=classic menuconfig

The bluetitle theme was modified by Roman Zippel <zippel@linux-m68k.org>
to further improve readability on LCD screens.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-30 11:19:19 +02:00
Sam Ravnborg
458972132a kconfig/lxdialog: add support for color themes and add blackbg theme
The blackbg theme was originally made by: Han Boetes
It was copied from a patch by "Randy.Dunlap" <rdunlap@xenotime.net>
which was also the inspiration source for the color theme support.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-30 11:19:19 +02:00
Sam Ravnborg
98e5a1579e kconfig/lxdialog: refactor color support
Clean up and refactor color support. All color support are now
in util.c including color definitions.
In the process introduced a global variable named 'dlg' which is
used all over to set color - thats the reason why all files are changed.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-30 11:19:19 +02:00
Henrik Kretzschmar
074a5dde04 [PATCH] docbook: fix segfault in docproc.c
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>
2006-09-29 09:18:18 -07:00
Michael Tokarev
07563c711f [PATCH] EISA bus MODALIAS attributes support
Add modalias attribute support for the almost forgotten now EISA bus and
(at least some) EISA-aware modules.

The modalias entry looks like (for an 3c509 NIC):

 eisa:sTCM5093

and the in-module alias like:

 eisa:sTCM5093*

The patch moves struct eisa_device_id declaration from include/linux/eisa.h
to include/linux/mod_devicetable.h (so that the former now #includes the
latter), adds proper MODULE_DEVICE_TABLE(eisa, ...) statements for all
drivers with EISA IDs I found (some drivers already have that DEVICE_TABLE
declared), and adds recognision of __mod_eisa_device_table to
scripts/mod/file2alias.c so that proper modules.alias will be generated.

There's no support for /lib/modules/$kver/modules.eisamap, as it's not used
by any existing tools, and because with in-kernel modalias mechanism those
maps are obsolete anyway.

The rationale for this patch is:

 a) to make EISA bus to act as other busses with modalias
    support, to unify driver loading

 b) to foget about EISA finally - with this patch, kernel
    (who still supports EISA) will be the only one who knows
    how to choose the necessary drivers for this bus ;)

[akpm@osdl.org: fix the kbuild bit]
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Acked-the-net-bits-by: Jeff Garzik <jeff@garzik.org>
Acked-the-tulip-bit-by: Valerie Henson <val_henson@linux.intel.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27 08:26:19 -07:00
Jan Beulich
adf1423698 [PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder
Current gcc generates calls not jumps to noreturn functions. When that happens the
return address can point to the next function, which confuses the unwinder.

This patch works around it by marking asynchronous exception
frames in contrast normal call frames in the unwind information.  Then teach
the unwinder to decode this.

For normal call frames the unwinder now subtracts one from the address which avoids
this problem.  The standard libgcc unwinder uses the same trick.

It doesn't include adjustment of the printed address (i.e. for the original
example, it'd still be kernel_math_error+0 that gets displayed, but the
unwinder wouldn't get confused anymore.

This only works with binutils 2.6.17+ and some versions of H.J.Lu's 2.6.16
unfortunately because earlier binutils don't support .cfi_signal_frame

[AK: added automatic detection of the new binutils and wrote description]

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
2006-09-26 10:52:41 +02:00
Arjan van de Ven
4f7fd4d7a7 [PATCH] Add the -fstack-protector option to the CFLAGS
Add a feature check that checks that the gcc compiler has stack-protector
support and has the bugfix for PR28281 to make this work in kernel mode.
The easiest solution I could find was to have a shell script in scripts/
to do the detection; if needed we can make this fancier in the future
without making the makefile too complex.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
CC: Andi Kleen <ak@suse.de>
CC: Sam Ravnborg <sam@ravnborg.org>
2006-09-26 10:52:39 +02:00
Andi Kleen
e2414910f2 [PATCH] x86: Detect CFI support in the assembler at runtime
... instead of using a CONFIG option. The config option still controls
if the resulting executable actually has unwind information.

This is useful to prevent compilation errors when users select
CONFIG_STACK_UNWIND on old binutils and also allows to use
CFI in the future for non kernel debugging applications.

Cc: jbeulich@novell.com
Cc: sam@ravnborg.org

Signed-off-by: Andi Kleen <ak@suse.de>
2006-09-26 10:52:30 +02:00
Linus Torvalds
398477d4bd Merge git://git.infradead.org/~dwmw2/khdrs-2.6
* git://git.infradead.org/~dwmw2/khdrs-2.6:
  New 'make headers_install_all' target.
  Use dependencies for 'make headers_install'.
  [S390] Unexport <asm/z90crypt.h>, export <asm/zcrypt.h> in its place.
  Remove dead netfilter_logging.h from include/linux/Kbuild
  Remove offsetof() from user-visible <linux/stddef.h>
  Clean up exported headers on CRIS
  Fix v850 exported headers
  Don't advertise (or allow) headers_{install,check} where inappropriate.
  Remove UML header export
  Remove ARM26 header export.
  Fix H8300 exported headers.
  Fix m68knommu exported headers
  Fix exported headers for SPARC, SPARC64
  Fix 'make headers_check' on m32r
  Fix 'make headers_check' on sh64
  Fix 'make headers_check' on sh
  [HEADERS] Fix ARM 'make headers_check'

Initial pass of manual conflict resolution in top-level Makefile over
conflicting build rule and headers_install changes.
2006-09-24 14:55:52 -07:00
Rolf Eike Beer
a5fa393b54 kbuild: fix "mkdir -p" usage in scripts/package/mkspec
"mkdir -p" does not only mean not to complain if the directory already
exists, but also to create the parent directories if needed. This patch
removes "lib" from the list of directories to create as we will also create
"lib/modules".

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 10:55:44 +02:00
Robert P. J. Day
b32c826847 kbuild: update help in top level Makefile
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 10:02:52 +02:00
Kirill Korotaev
c53ddacdc0 kbuild: fail kernel compilation in case of unresolved module symbols
At stage 2 modpost utility is used to check modules.  In case of unresolved
symbols modpost only prints warning.

IMHO it is a good idea to fail compilation process in case of unresolved
symbols (at least in modules coming with kernel), since usually such errors
are left unnoticed, but kernel modules are broken.

- new option '-w' is added to modpost:
  if option is specified, modpost only warns about unresolved symbols

- modpost is called with '-w' for external modules in Makefile.modpost

Signed-off-by: Andrey Mirkin <amirkin@sw.ru>
Signed-off-by: Kirill Korotaev <dev@openvz.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 09:14:30 +02:00
Sam Ravnborg
2212692913 kbuild: remove debug left-over from Makefile.host
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 09:05:19 +02:00
Sam Ravnborg
7b5b820381 kbuild: create output directory for hostprogs with O=.. build
hostprogs-y only supported creating output directory for the final
program. Extend this to also cover the situation where a .o
file (used when host program is made from compositie objects) is
locate in another directory.
First user of this is the built-in lxdialog that.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 09:04:42 +02:00
Sam Ravnborg
93659af1ce kbuild: add missing return statement in modpost.c:secref_whitelist()
Noticed by: Magnus Damm <magnus@valinux.co.jp>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 09:01:49 +02:00
Sam Ravnborg
45d506bd65 kbuild: make V=2 tell why a target is rebuild
tell why a a target got build
   enabled by make V=2
      Output (listed in the order they are checked):
         (1) - due to target is PHONY
         (2) - due to target missing
         (3) - due to: file1.h file2.h
         (4) - due to command line change
         (5) - due to missing .cmd file
         (6) - due to target not in $(targets)
(1) We always build PHONY targets
(2) No target, so we better build it
(3) Prerequisite is newer than target
(4) The command line stored in the file named dir/.target.cmd
    differed from actual command line. This happens when compiler
    options changes
(5) No dir/.target.cmd file (used to store command line)
(6) No dir/.target.cmd file and target not listed in $(targets)
    This is a good hint that there is a bug in the kbuild file

This patch is inspired by a patch from: Milton Miller <miltonm@bga.com>

Cc: Milton Miller <miltonm@bga.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 09:01:49 +02:00
Sam Ravnborg
12715d20af kbuild: modpost on vmlinux regardless of CONFIG_MODULES
Based on patch from: Magnus Damm <magnus@valinux.co.jp>
This has the advantage that all section mismatch checks are run regardless
of modules being enabled or not.

When running modpost on vmlinux output:
MODPOST vmlinux

When running modpost on modules output count of modules like this:
MODPOST 5 modules

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 09:01:49 +02:00
Magnus Damm
9e157a5aa8 kbuild: ignore references from ".pci_fixup" to ".init.text"
The modpost code is extended to ignore references
from ".pci_fixup" to ".init.text".

Signed-off-by: Magnus Damm <magnus@valinux.co.jp>
2006-09-25 09:01:49 +02:00
Sam Ravnborg
07aea3a71f kbuild: use in-kernel unifdef
Let headers_install use in-kernel unifdef

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 09:00:01 +02:00
Sam Ravnborg
14a036d2dc kbuild: replace use of strlcpy with a dedicated implmentation in unifdef
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 09:00:00 +02:00
Sam Ravnborg
01f1c8799a kbuild: add unifdef
This patch contains a raw copy of unifdef.c
Next patch will modify it and add infrastructure to use it
Adding unifdef to the kernel is acked by the author.

The reason to add unifdef as part of the kernel source is that it is not
yet a common utility on most distributions.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 09:00:00 +02:00
Sam Ravnborg
48f1f0589d kbuild: consistently decide when to rebuild a target
Consistently decide when to rebuild a target across all of
if_changed, if_changed_dep, if_changed_rule.
PHONY targets are now treated alike (ignored) for all targets

While add it make Kbuild.include almost readable by factoring out a few
bits to some common variables and reuse this in Makefile.build.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 09:00:00 +02:00
Matthew Wilcox
d3660a8cbd kconfig: support DOS line endings
Kconfig doesn't currently handle config files with DOS line endings.
While these are, of course, an abomination, etc, etc, it can be handy
to not have to convert them first.  It's also a tiny patch and even adds
support for lines ending in just \r or even \n\r.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-25 09:00:00 +02:00
David Woodhouse
de78912582 Use dependencies for 'make headers_install'.
Re-export header files only if either they or their controlling Kbuild
file has actually changed. Also allow for similar dependencies with
'headers_check', once we properly create the dependencies for those.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-09-24 22:15:14 +01:00
Linus Torvalds
a489d15922 Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (44 commits)
  [S390] hypfs crashes with invalid mount option.
  [S390] cio: subchannel evaluation function operates without lock
  [S390] cio: always query all paths on path verification.
  [S390] cio: update path groups on logical CHPID changes.
  [S390] cio: subchannels in no-path state.
  [S390] Replace nopav-message on VM.
  [S390] set modalias for ccw bus uevents.
  [S390] Get rid of DBG macro.
  [S390] Use alternative user-copy operations for new hardware.
  [S390] Make user-copy operations run-time configurable.
  [S390] Cleanup in signal handling code.
  [S390] Cleanup in page table related code.
  [S390] Linux API for writing z/VM APPLDATA Monitor records.
  [S390] xpram off by one error.
  [S390] Remove kexec experimental flag.
  [S390] cleanup appldata.
  [S390] fix typo in vmcp.
  [S390] Kernel stack overflow handling.
  [S390] qdio slsb processing state.
  [S390] Missing initialization in common i/o layer.
  ...
2006-09-22 12:50:35 -07:00
Linus Torvalds
14d1adfc59 Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (114 commits)
  [POWERPC] Fix ohare IDE irq workaround on old powermacs
  [POWERPC] EEH: Power4 systems sometimes need multiple resets.
  [POWERPC] Include <asm/mmu.h> in arch/powerpc/sysdev/fsl_soc.h for phys_addr_t.
  [POWERPC] Demacrofy arch/powerpc/platforms/maple/pci.c
  [POWERPC] Maple U3 HT - reject inappropriate config space access
  [POWERPC] Fix IPIC pending register assignments
  [POWERPC] powerpc: fix building gdb against asm/ptrace.h
  [POWERPC] Remove DISCONTIGMEM cruft from page.h
  [POWERPC] Merge iSeries i/o operations with the rest
  [POWERPC] 40x: Fix debug status register defines
  [POWERPC] Fix compile error in sbc8560
  [POWERPC] EEH: support MMIO enable recovery step
  [POWERPC] EEH: enable MMIO/DMA on frozen slot
  [POWERPC] EEH: code comment cleanup
  [POWERPC] EEH: balance pcidev_get/put calls
  [POWERPC] PPC: Fix xmon stack frame address in backtrace
  [POWERPC] Add AT_PLATFORM value for Xilinx Virtex-4 FX
  [POWERPC] Start arch/powerpc/boot code reorganization
  [POWERPC] Define of_read_ulong helper
  [POWERPC] iseries: eliminate a couple of warnings
  ...
2006-09-22 12:48:03 -07:00
Martin Schwidefsky
1534c3820c [S390] zcrypt adjunct processor bus.
Add a bus for the adjunct processor interface. Up to 64 devices can
be connect to the ap bus interface, each device with 16 domains. That
makes 1024 message queues. The interface is asynchronous, the answer
to a message sent to a queue needs to be received at some later point
in time. Unfortunately the interface does not provide interrupts when
a message reply is pending. So the ap bus needs to implement some
fancy polling, each active queue is polled once per 1/HZ second or
continuously if an idle cpus exsists and the poll thread is activ
(see poll_thread parameter).

The ap bus uses the sysfs path /sys/bus/ap and has two bus attributes,
ap_domain and config_time. The ap_domain selects one of the 16 domains
to be used for this system. This limits the maximum number of ap devices
to 64. The config_time attribute contains the number of seconds between
two ap bus scans to find new devices.

The ap bus uses the modalias entries of the form "ap:tN" to autoload
the ap driver for hardware type N. Currently known types are:
3 - PCICC, 4 - PCICA, 5 - PCIXCC, 6 - CEX2A and 7 - CEX2C.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:58:25 +02:00
David Woodhouse
b512217736 [PATCH] Fix 'make headers_check' on biarch architectures
We generate an <asm/foo.h> which includes either <asm-$ARCH/foo.h> or
<asm-$ALTARCH/foo.h> as appropriate.  But we were doing this dependent on
whether the file in question existed in the _unexported_ tree, not the
exported tree.  So if a file was exported to userspace in one asm- directory
but not the other, the generated file in asm/ was incorrect.

This only changed the failure mode if it _was_ included from a nice #error to
a less explicable #include failure -- but it also gave false errors in 'make
headers_check' output.  Fix it by looking in the right place instead.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-16 12:54:31 -07:00
Ross Biro
8f5cbd7e48 [PATCH] Add a missing space that prevents building modules that require host programs
Signed-off-by: Ross Biro <rossb@google.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-16 12:54:31 -07:00
Paul Mackerras
c547fc28ab Merge branch 'linux-2.6' 2006-09-14 07:07:18 +10:00
Alexey Dobriyan
d5e064a6c7 [PATCH] headers_check: clarify error message
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-13 07:32:15 -07:00
Alexey Dobriyan
120e2a9726 [PATCH] headers_check: improve #include regexp
The following combinations of pp-tokens are used

	#include
	 #include
	# include

so, script'd better check for all of them.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-13 07:32:15 -07:00
Paul Mackerras
aa43f77939 Merge branch 'merge' 2006-08-31 15:45:48 +10:00
Johannes Berg
271c511db9 [POWERPC] make checkstack work with ARCH=powerpc
This patch adds 'powerpc' architecture support to checkstack.pl.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-08-25 13:30:27 +10:00
Hans de Goede
e0e9263271 [PATCH] PATCH: 1 line 2.6.18 bugfix: modpost-64bit-fix.patch
There is a small but annoying bug in scripts/mod/file2alias.c which causes
it to generate invalid aliases for input devices on 64 bit archs. This causes
joydev.ko to not be automaticly loaded when inserting a joystick, resulting in
a non working joystick (for the average user).

In scripts/mod/file2alias.c is the following code for generating the input
aliases:
static void do_input(char *alias,
                     kernel_ulong_t *arr, unsigned int min, unsigned int max)
{
        unsigned int i;

        for (i = min; i < max; i++)
                if (arr[i / BITS_PER_LONG] & (1 << (i%BITS_PER_LONG)))
                        sprintf(alias + strlen(alias), "%X,*", i);
}

On 32 bits systems, this correctly generates "0,*" for the first alias, "8,*"
for the second etc.

However on 64 bits it generates: "0,*20,*" resp "8,*28,*" Notice how it adds 20
+ first entry (hex) ! to the list of hex codes, which is 32 more then the first
entry, thus is because the bit test above wraps at 32 bits instead of 64.

scripts/mod/file2alias.c, line 379 reads:
                if (arr[i / BITS_PER_LONG] & (1 << (i%BITS_PER_LONG)))
That should be:
                if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))

Notice the added 'L' after the 1, otherwise that is an 32 bit int instead of a
64 bit long, and when that int gets shifted >= 32 times, appearantly the number
by which to shift is wrapped at 5 bits ( % 32) causing it to test a bit 32 bits
too low.

The patch below makes the nescesarry 1 char change :)

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-08-15 12:53:09 -07:00
Sam Ravnborg
8eb3afe0e9 kbuild: always use $(CC) for $(call cc-version)
The possibility to specify an optional parameter did not work out as
expected and it was not used - so remove the possibility.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-08-01 11:32:47 +02:00
Roman Zippel
002d27b1b7 kconfig: correct oldconfig for unset choice options
oldconfig currently ignores unset choice options and doesn't ask for them.
Correct the SYMBOL_DEF_USER flag of the choice symbol to be only set if
it's set for all values.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-08-01 11:32:47 +02:00
Dave Jones
0463f3c7a3 kbuild: fix typo in modpost
Reported by a Fedora user when they tried to build some out of tree module..

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-08-01 11:32:46 +02:00
Sam Ravnborg
fb33d81613 kbuild: improve error from file2alias
The original errormessage was just plain unreadable.

Sample error message after this update (not for real - I provoked it):

FATAL: drivers/net/s2io: sizeof(struct pci_device_id)=33 is not a modulo of the
size of section __mod_pci_device_table=160.
Fix definition of struct pci_device_id in mod_devicetable.h

Before a warning was generated - this is now a fatal error.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-08-01 11:32:46 +02:00
Roland McGrath
0b0bf7a3cc [PATCH] vDSO hash-style fix
The latest toolchains can produce a new ELF section in DSOs and
dynamically-linked executables.  The new section ".gnu.hash" replaces
".hash", and allows for more efficient runtime symbol lookups by the
dynamic linker.  The new ld option --hash-style={sysv|gnu|both} controls
whether to produce the old ".hash", the new ".gnu.hash", or both.  In some
new systems such as Fedora Core 6, gcc by default passes --hash-style=gnu
to the linker, so that a standard invocation of "gcc -shared" results in
producing a DSO with only ".gnu.hash".  The new ".gnu.hash" sections need
to be dealt with the same way as ".hash" sections in all respects; only the
dynamic linker cares about their contents.  To work with older dynamic
linkers (i.e.  preexisting releases of glibc), a binary must have the old
".hash" section.  The --hash-style=both option produces binaries that a new
dynamic linker can use more efficiently, but an old dynamic linker can
still handle.

The new section runs afoul of the custom linker scripts used to build vDSO
images for the kernel.  On ia64, the failure mode for this is a boot-time
panic because the vDSO's PT_IA_64_UNWIND segment winds up ill-formed.

This patch addresses the problem in two ways.

First, it mentions ".gnu.hash" in all the linker scripts alongside ".hash".
 This produces correct vDSO images with --hash-style=sysv (or old tools),
with --hash-style=gnu, or with --hash-style=both.

Second, it passes the --hash-style=sysv option when building the vDSO
images, so that ".gnu.hash" is not actually produced.  This is the most
conservative choice for compatibility with any old userland.  There is some
concern that some ancient glibc builds (though not any known old production
system) might choke on --hash-style=both binaries.  The optimizations
provided by the new style of hash section do not really matter for a DSO
with a tiny number of symbols, as the vDSO has.  If someone wants to use
=gnu or =both for their vDSO builds and worry less about that
compatibility, just change the option and the linker script changes will
make any choice work fine.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31 13:28:43 -07:00
Randy Dunlap
0129a057b6 [PATCH] kernel-doc: ignore __devinit
Ignore __devinit in function definitions so that kernel-doc won't fail on
them.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31 13:28:40 -07:00
Linus Torvalds
6fa0cb1141 Merge git://git.infradead.org/hdrinstall-2.6
* git://git.infradead.org/hdrinstall-2.6:
  Remove export of include/linux/isdn/tpam.h
  Remove <linux/i2c-id.h> and <linux/i2c-algo-ite.h> from userspace export
  Restrict headers exported to userspace for SPARC and SPARC64
  Add empty Kbuild files for 'make headers_install' in remaining arches.
  Add Kbuild file for Alpha 'make headers_install'
  Add Kbuild file for SPARC 'make headers_install'
  Add Kbuild file for IA64 'make headers_install'
  Add Kbuild file for S390 'make headers_install'
  Add Kbuild file for i386 'make headers_install'
  Add Kbuild file for x86_64 'make headers_install'
  Add Kbuild file for PowerPC 'make headers_install'
  Add generic Kbuild files for 'make headers_install'
  Basic implementation of 'make headers_check'
  Basic implementation of 'make headers_install'
2006-07-04 12:55:45 -07:00
Sam Ravnborg
63104eec23 kbuild: introduce utsrelease.h
include/linux/version.h contained both actual KERNEL version
and UTS_RELEASE that contains a subset from git SHA1 for when
kernel was compiled as part of a git repository.
This had the unfortunate side-effect that all files including version.h
would be recompiled when some git changes was made due to changes SHA1.
Split it out so we keep independent parts in separate files.

Also update checkversion.pl script to no longer check for UTS_RELEASE.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-03 23:30:54 +02:00
Linus Torvalds
b4bc7b53cc Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild:
  kbuild: documentation change on allowing checkers besides sparse
  kbuild: warn when a moduled uses a symbol marked UNUSED
  kbuild: fix segv in modpost
  kconfig: enhancing accessibility of lxdialog
  kbuild: fix ia64 breakage after introducing make -rR
2006-07-01 09:58:43 -07:00
Randy Dunlap
f47634b276 [PATCH] kernel-doc: make man/text mode function output same
Make output of function descriptions in text mode match contents of 'man'
mode by adding Name: plus function-short-description ("purpose") and
changing Function: to Synopsis:.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-01 09:56:04 -07:00
Randy.Dunlap
1d7e1d4517 [PATCH] kernel-doc: consistent text/man mode output
Add a space between data type and struct field name in man-mode
bitfield struct output so that they don't run together.

For text-mode struct output, print the struct 'purpose' or
short description (as done in man-mode output).

For text-mode enum output, print the enum 'purpose' or
short description (as done in man-mode output).

For text-mode typedef output, print the typedef 'purpose' or
short description (as done in man-mode output).

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-01 09:56:04 -07:00
Sam Ravnborg
c96fca2137 kbuild: warn when a moduled uses a symbol marked UNUSED
We now have infrastructure in place to mark an EXPORTed symbol
as unused. So the natural next step is to warn during buildtime when
a module uses a symbol marked UNUSED.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 11:44:23 +02:00
Sam Ravnborg
534b89a9f6 kbuild: fix segv in modpost
Parsing an old Modules.symvers file casued modpost to SEGV.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 10:10:19 +02:00
Samuel Thibault
66392c4f22 kconfig: enhancing accessibility of lxdialog
Some fix that I forgot for good accessibility of lxdialog (the cursor
should always be left at the focus location):

Have the checklist display the currently highlighted entry last, for having
the cursor left on it (rather than on the last line of the list).

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 10:05:42 +02:00
Sam Ravnborg
5e8d780d74 kbuild: fix ia64 breakage after introducing make -rR
kbuild used $¤(*F to get filename of target without extension.
This was used in several places all over kbuild, but introducing
make -rR broke his for all cases where we specified full path to
target/prerequsite. It is assumed that make -rR disables old style
suffix-rules which is why is suddenly failed.

ia64 was impacted by this change because several div* routines in
arch/ia64/lib are build using explicit paths and then kbuild failed.

Thanks to David Mosberger-Tang <David.Mosberger@acm.org> for an explanation
what was the root-cause and for testing on ia64.

This patch also fixes two uses of $(*F) in arch/um

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 09:58:02 +02:00
Thomas Gleixner
0bafd214e4 [PATCH] rtmutex: Modify rtmutex-tester to test the setscheduler propagation
Make test suite setscheduler calls asynchronously.  Remove the waits in the
test cases and add a new testcase to verify the correctness of the
setscheduler priority propagation.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:47 -07:00
Thomas Gleixner
61a8712286 [PATCH] pi-futex: rt mutex tester
RT-mutex tester: scriptable tester for rt mutexes, which allows userspace
scripting of mutex unit-tests (and dynamic tests as well), using the actual
rt-mutex implementation of the kernel.

[akpm@osdl.org: fixlet]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:47 -07:00
Linus Torvalds
d38b69689c Revert "kbuild: fix make -rR breakage"
This reverts commit e5c44fd88c.

Thanks to Daniel Ritz and Michal Piotrowski for noticing the problem.

Daniel says:

  "[The] reason is a recent change that made modules always shows as
   module.mod.  it breaks modprobe and probably many scripts..besides
   lsmod looking horrible

   stuff like this in modprobe.conf:
        install pcmcia_core /sbin/modprobe --ignore-install pcmcia_core; /sbin/modprobe pcmcia
   makes modprobe fork/exec endlessly calling itself...until oom
   interrupts it"

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26 16:59:26 -07:00
Linus Torvalds
2a2ed2db35 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (40 commits)
  kbuild: trivial fixes in Makefile
  kbuild: adding symbols in Kconfig and defconfig to TAGS
  kbuild: replace abort() with exit(1)
  kbuild: support for %.symtypes files
  kbuild: fix silentoldconfig recursion
  kbuild: add option for stripping modules while installing them
  kbuild: kill some false positives from modpost
  kbuild: export-symbol usage report generator
  kbuild: fix make -rR breakage
  kbuild: append -dirty for updated but uncommited changes
  kbuild: append git revision for all untagged commits
  kbuild: fix module.symvers parsing in modpost
  kbuild: ignore make's built-in rules & variables
  kbuild: bugfix with initramfs
  kbuild: modpost build fix
  kbuild: check license compatibility when building modules
  kbuild: export-type enhancement to modpost.c
  kbuild: add dependency on kernel.release to the package targets
  kbuild: `make kernelrelease' speedup
  kconfig: KCONFIG_OVERWRITECONFIG
  ...
2006-06-26 11:05:15 -07:00
Randy Dunlap
c51d3dac32 [PATCH] kernel-doc: use Members for struct fields consistently
kernel-doc struct fields should be consistently called "Members", not
"Arguments", so switch man-mode output to use "Members" like all of the
other formats do.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 10:01:23 -07:00
Randy Dunlap
ecfb251a95 [PATCH] kernel-doc: don't use XML escapes in text or man output mode
For kernel-doc output modes of text and man, do not use XML escapes for
less-than, greater-than, and ampersand characters.  I.e., leave the text
and man output clean and readable.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 10:01:23 -07:00
Randy Dunlap
850622dfaf [PATCH] kernel-doc: warn on malformed function docs.
When the verbose (-v) option is used with scripts/kernel-doc, this option
reports when the kernel-doc format is malformed and apparently contains
function description lines before function parameters.  In these cases, the
kernel-doc script will print something like: Warning(filemap.c:335):
contents before sections

I have fixed the problems in mm/filemap.c and added lots of kernel-doc to
that file (posted to the linux-mm mailing list Mon.  2006-June-12).

The real goal (as requested by Andrew Morton) is to allow the short
function description to be more than one line long.  This patch is both a
kernel-doc checker and a tool en route to that goal.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 10:01:20 -07:00
Randy Dunlap
8ad2914d9c [PATCH] checkstack: print module names
Finding "init_module" high stack usage problems is challenging when there
are over 1600 "init_module" functions in the kernel tree, so make
checkstack.pl print out the filename where the stack usage occurs.  This is
useful for code built as loadable modules.

For built-in code, it just prints the kernel image file name, like
"vmlinux".  Examples:

(before patch:)
0x0000000d callback:					1928
0xffffffff81678c09 huft_build:				1560
0x0018 init_module:					1512

(after patch:)
0x0000000d callback [divacapi]:				1928
0xffffffff81678c09 huft_build [vmlinux]:		1560
0x0018 init_module [hdaps]:				1512

Also change one if-series to use elsif to cut down on unneeded tests.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Joern Engel <joern@wh.fh-wedel.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 10:01:15 -07:00
Randy Dunlap
232acbcf53 [PATCH] kernel-doc: script cleanups
Fix indentation.
Quote a brace '{' so that vi won't be fooled by it.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 10:01:07 -07:00
Randy Dunlap
05189497d1 [PATCH] kernel-doc: drop leading space in sections
Drop leading space of kernel-doc section contents.

"Section" data (contents) are split from the section header
(e.g., Note: below is a section header:
 * Note: list_empty on entry does not return true after this, the entry is
 * in an undefined state.
).

Currently the data/contents begins with a space and is left that way, which
causes it to look bad when printed (in text mode; see example below), so
just remove the leading space.

Note:

list_empty on entry does not return true after this, the entry is in an
undefined state.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 10:01:07 -07:00
Rob Landley
51849738cf [PATCH] bloat-o-meter: gcc-4 fix
Upgrade scripts/bloat-o-meter to handle the names gcc 4 gives static
symbols.

Signed-off-by: Rob Landley <rob@landley.net>
Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 10:01:00 -07:00
Sam Ravnborg
6803dc0ea8 kbuild: replace abort() with exit(1)
We have had no use of the coredump file for a long time.
So just exit(1) and avoid coredumping.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-24 23:46:54 +02:00
Andreas Gruenbacher
15fde67518 kbuild: support for %.symtypes files
Here is a patch that adds a new -T option to genksyms for generating dumps of
the type definition that makes up the symbol version hashes. This allows to
trace modversion changes back to what caused them. The dump format is the
name of the type defined, followed by its definition (which is almost C):

  s#list_head struct list_head { s#list_head * next , * prev ; }

The s#, u#, e#, and t# prefixes stand for struct, union, enum, and typedef.
The exported symbols do not define types, and thus do not have an x# prefix:

  nfs4_acl_get_whotype int nfs4_acl_get_whotype ( char * , t#u32 )

The symbol type defintion of a single file can be generated with:

  make fs/jbd/journal.symtypes

If KBUILD_SYMTYPES is defined, all the *.symtypes of all object files that
export symbols are generated.

The single *.symtypes files can be combined into a single file after a kernel
build with a script like the following:

for f in $(find -name '*.symtypes' | sort); do
    f=${f#./}
    echo "/* ${f%.symtypes}.o */"
    cat $f
    echo
done \
| sed -e '\:UNKNOWN:d' \
      -e 's:[,;] }:}:g' \
      -e 's:\([[({]\) :\1:g' \
      -e 's: \([])},;]\):\1:g' \
      -e 's: $::' \
      $f \
| awk '
/^.#/   { if (defined[$1] == $0) {
            print $1
            next
          }
          defined[$1] = $0
        }
        { print }
'

When the kernel ABI changes, diffing individual *.symtype files, or the
combined files, against each other will show which symbol changes caused the
ABI changes. This can save a tremendous amount of time.

Dump the types that make up modversions

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-24 23:42:46 +02:00
Theodore Ts'o
ac031f26e8 kbuild: add option for stripping modules while installing them
Add option for stripping modules while installing them.

This function adds support for stripping modules while they are being
installed.  CONFIG_DEBUG_KERNEL (which will probably become more
popular as developers use kdump) causes the size of the installed
modules to grow by a factor of 9 or so.

Some kernel package systems solve this problem by stripping the debug
information from /lib/modules after running "make modules_install",
but that may not work for people who are installing directly into
/lib/modules --- root partitions that were sized to handle 16 megs
worth of modules may not be quite so happy with 145 megs of modules,
so the "make modules_install" never succeeds.

This patch allows such users to request modules_install to strip the
modules as they are installed.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-24 23:16:45 +02:00
Al Viro
468d949401 kbuild: kill some false positives from modpost
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-24 23:14:05 +02:00
Ram Pai
c5e3003381 kbuild: export-symbol usage report generator
The following patch provides the ability to generate a report of
	(1) All the exported symbols and their in-kernel-module usage count
	(2) For each module, lists the modules and their exported symbols, on
	                  which it depends.

	the report can be generated by executing:
	perl scripts/export_report

The tool warns if the modules are not build using MODVERSIONING.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-24 23:14:02 +02:00
Sam Ravnborg
e5c44fd88c kbuild: fix make -rR breakage
make failed to supply the filename when using make -rR and using $(*F)
to get target filename without extension.
This bug was not reproduceable in small scale but using:
$(basename $(notdir $@)) fixes it with same functionality.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-24 23:13:59 +02:00
David Woodhouse
684753599a Basic implementation of 'make headers_check'
Based on the 'headers_install' target, this performs a basic sanity check
on the exported headers -- so far only checking that they do not include
any other headers which aren't selected for import, but easily extendable.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-18 12:02:10 +01:00
David Woodhouse
8d730cfb50 Basic implementation of 'make headers_install'
This adds a make target which exports a subset of headers which contain
definitions which are useful for system libraries and tools. It uses the
BSD 'unifdef' tool to remove instances of #ifdef __KERNEL__, and uses
sed to remove markers like __user.

Based on an original implementation by Arnd Bergmann <arnd@arndb.de>
Hacked about by David Woodhouse <dwmw2@infradead.org>
Reviewed and cleaned up by Sam Ravnborg <sam@ravnborg.org>

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-18 11:58:39 +01:00
Uwe Zeisberger
216b2f1f71 kbuild: append -dirty for updated but uncommited changes
Compare the working copy with the last commit, instead of the index.

Signed-off-by: Uwe Zeisberger <zeisberg@informatik.uni-freiburg.de>
Acked-by: Ryan Anderson <ryan@michonline.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-17 00:08:17 +02:00
Uwe Zeisberger
29b0c89953 kbuild: append git revision for all untagged commits
adds revision suffix for untagged commits that are reachable from a tag

I'm bisecting and don't get the -g...... suffix.  The reason is, that

	git name-rev --tags HEAD

returns e.g.

	HEAD tags/v2.6.17-rc1^0~1067

which is currently good enough for setlocalversion to skip the suffix.
This introduces a dependecy to grep -E, which should be fine.

Signed-off-by: Uwe Zeisberger <zeisberg@informatik.uni-freiburg.de>
Acked-By: Ryan Anderson <ryan@michonline.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-17 00:08:17 +02:00
Laurent Riffard
9ac545b0f7 kbuild: fix module.symvers parsing in modpost
read_dump didn't split lines between module name and export type.

Signed-off-by: Laurent Riffard <laurent.riffard@free.fr>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-16 23:45:45 +02:00
Andrew Morton
6449bd621b kbuild: modpost build fix
scripts/mod/modpost.c: In function `check_license':
scripts/mod/modpost.c:1094: parse error before `const'
scripts/mod/modpost.c:1095: `basename' undeclared (first use in this function)
scripts/mod/modpost.c:1095: (Each undeclared identifier is reported only once
scripts/mod/modpost.c:1095: for each function it appears in.)

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-10 07:58:14 +02:00
Sam Ravnborg
b817f6feff kbuild: check license compatibility when building modules
Modules that uses GPL symbols can no longer be build with kbuild,
the build will fail during the modpost step.
When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol
then warn during modpost so author are actually notified.

The actual license compatibility check is shared with the kernel
to make sure it is in sync.

Patch originally from: Andreas Gruenbacher <agruen@suse.de> and
Ram Pai <linuxram@us.ibm.com>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
Ram Pai
bd5cbcedf4 kbuild: export-type enhancement to modpost.c
This patch provides the ability to identify the export-type of each
exported symbols in Module.symvers.

NOTE: It updates the Module.symvers file with the additional
information as shown below.

0x0f8b92af      platform_device_add_resources   vmlinux EXPORT_SYMBOL_GPL
0xcf7efb2a      ethtool_op_set_tx_csum          vmlinux EXPORT_SYMBOL

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Avantika Mathur <mathur@us.ibm.com>
Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 20:33:10 +02:00
Roman Zippel
14cdd3c402 kconfig: KCONFIG_OVERWRITECONFIG
If you set KCONFIG_OVERWRITECONFIG in environment, Kconfig will not break
symlinks when .config is a symlink to somewhere else.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 16:28:07 +02:00
Randy Dunlap
250725aa13 kconfig: exit if no beginning filename
If the beginning Kconfig file is missing, config segfaults so it might as
well exit after the error message.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 16:28:07 +02:00
Roman Zippel
f001f7f896 kconfig: warn about leading whitespace for menu prompts
Kconfig does its own indentation of menu prompts, so warn about and ignore
leading whitespace.  Remove also a few unnecessary newlines after other
warning prints.

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>
2006-06-09 16:28:07 +02:00
Roman Zippel
b65a47e1ac kconfig: jump to linked menu prompt
If clicking on of the links, which leads to a visible prompt, jump to it in
the symbol list.

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>
2006-06-09 16:28:07 +02:00
Roman Zippel
ab45d190fd kconfig: create links in info window
Extend the expression print helper function to allow customization of the
symbol output and use it to add links to the info window.

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>
2006-06-09 16:28:07 +02:00
Roman Zippel
7fc925fd6a kconfig: finer customization via popup menus
This allows to configure every symbol list and info window separately via a
popup menu, these settings are also separately saved and restored.  Cleanup
the ConfigSettings class a bit to reduce the number of #ifdef.

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>
2006-06-09 07:31:31 +02:00
Roman Zippel
43bf612af2 kconfig: Add search option for xconfig
Implement a simple search request for xconfig.  Currently the capabilities are
rather simple (the same as menuconfig).

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>
2006-06-09 07:31:31 +02:00
Roman Zippel
face4374e2 kconfig: add defconfig_list/module option
This makes it possible to change two options which were hardcoded sofar.
1. Any symbol can now take the role of CONFIG_MODULES
2. The more useful option is to change the list of default file names,
   which kconfig uses to load the base configuration if .config isn't
   available.

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>
2006-06-09 07:31:30 +02:00
Roman Zippel
f6a88aa860 kconfig: add symbol option config syntax
This adds the general framework to the parser to define options for config
symbols with a syntax like:

config FOO
	option bar[="arg"]

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>
2006-06-09 07:31:30 +02:00
Roman Zippel
2e3646e51b kconfig: integrate split config into silentoldconfig
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>
2006-06-09 07:31:30 +02:00
Roman Zippel
669bfad906 kconfig: allow loading multiple configurations
Extend conf_read_simple() so it can load multiple configurations.

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>
2006-06-09 07:31:30 +02:00
Roman Zippel
0c1822e699 kconfig: allow multiple default values per symbol
Extend struct symbol to allow storing multiple default values, which can be
used to hold multiple configurations.

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>
2006-06-09 07:31:30 +02:00
Roman Zippel
c0e150acde kconfig: remove SYMBOL_{YES,MOD,NO}
The SYMBOL_{YES,MOD,NO} are not really used anymore (they were more used be
the cml1 converter), so just remove them.

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>
2006-06-09 07:31:30 +02:00
Roman Zippel
c955ccafc3 kconfig: fix .config dependencies
This fixes one of the worst kbuild warts left - the broken dependencies used
to check and regenerate the .config file.  This was done via an indirect
dependency and the .config itself had an empty command, which can cause make
not to reread the changed .config file.

Instead of this we generate now a new file include/config/auto.conf from
.config, which is used for kbuild and has the proper dependencies.  It's also
the main make target now for all files generated during this step (and thus
replaces include/linux/autoconf.h).

This also means we can now relax the syntax requirements for the .config file
and we don't have to rewrite it all the time, i.e.  silentoldconfig only
writes .config now when it's necessary to keep it in sync with the Kconfig
files and even this can be suppressed by setting the environment variable
KCONFIG_NOSILENTUPDATE, so the update can (and must) be done manually.

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>
2006-06-09 07:31:30 +02:00
Roman Zippel
ddc97cacb3 kconfig: improve config load/save output
During loading special case the first common case (.config), be silent about
it and otherwise mark it as a change that requires saving.  Instead output
that the file has been changed.  IOW if conf does nothing (special), it's
silent.

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>
2006-06-09 07:31:30 +02:00
Sam Ravnborg
909252d279 kbuild: fix false section mismatch with ARCH=um build
Ignoring references to .init.text, .exit.text from the .plt section brought
the false positives down to two warnings for a defconfig build of ARCH=um
on x86_64.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 20:37:30 +02:00
Randy Dunlap
35899c5751 kbuild: ignore smp_locks section warnings from init/exit code
Add ".smp_locks" section to whitelist as being safe from
init and exit sections.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 20:20:23 +02:00
Mike Wolf
1a0f3d422b kbuild: fix make rpm for powerpc
The default target for most powerpc platforms is zImage.  The
zImage however is in arch/powerpc/boot and the mkspec script
was set up to get the kernel from the top level of the kernel
tree.  This patch copies vmlinux to arch/powerpc/boot and then
copies the kernel to the tmp directory so the rpm can be made.

Signed-off-by: Mike Wolf <mjw@us.ibm.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 20:18:49 +02:00
Pavel Roskin
9870a93d31 kbuild: obj-dirs is calculated incorrectly if hostprogs-y is defined
When Makefile.host is included, $(obj-dirs) is subjected to the
addprefix operation for the second time.  Prefix only needs to be added
to the newly added directories, but not to those that came from
Makefile.lib.

This causes the build system to create unneeded empty directories in the
build tree when building in a separate directory.  For instance,
lib/lib/zlib_inflate is created in the build tree.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 20:18:05 +02:00
Atsushi Nemoto
eae07ac607 [PATCH] kbuild: fix modpost segfault for 64bit mipsel kernel
Here is an updated r_info layout fix.  Please apply "check SHT_REL
sections" patch before this.

64bit mips has different r_info layout.  This patch fixes modpost
segfault for 64bit little endian mips kernel.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-21 12:59:21 -07:00
Atsushi Nemoto
2c1a51f39d [PATCH] kbuild: check SHT_REL sections
I found that modpost can not detect section mismatch on mips and i386.  On
mips64, the modpost (with r_info layout fix) can detect it.  The current
modpst only checks SHT_RELA section but I suppose SHT_REL section should be
checked also.  This patch does not contain r_info layout fix.  I'll post an
updated r_info layout fix on next mail.

Check SHT_REL sections as like as SHT_RELA sections to detect section
mismatch.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-21 12:59:21 -07:00
Linus Torvalds
601e7f024e Revert "kbuild: fix modpost segfault for 64bit mipsel kernel"
This reverts commit c8d8b837eb, which
caused problems for the x86 build. Quoth Sam:

  "It was discussed on mips list but apparently the fix was bogus.  I
   will not have time to look into it so mips can carry this local fix
   until we get a proper fix in mainline."

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-08 13:38:42 -07:00
Linus Torvalds
bed7a56033 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild:
  kbuild: Do not overwrite makefile as anohter user
  kbuild: drivers/video/logo/ - fix ident glitch
  kbuild: fix gen_initramfs_list.sh
  kbuild modpost - relax driver data name
  kbuild: removing .tmp_versions considered harmful
  kbuild: fix modpost segfault for 64bit mipsel kernel
2006-05-08 09:10:44 -07:00
Jan Beulich
fd5f0cd6b0 kbuild: Do not overwrite makefile as anohter user
Change the conditional of the outputmakefile rule to be evaluated entirely
in make, and add a conditional to not touch the generated makefile when e.g.
running 'make install' as root while the build was done as non-root. Also
adjust the comment describing this, and move the message printing and
redirection to mkmakefile.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-05-08 06:55:32 +02:00
Sam Ravnborg
46ed981d5d kbuild: fix gen_initramfs_list.sh
Create correct dependencies when specifying your own file with
list of files etc. to include in initramfs.
Reported by: Andre Noll <maan@skl-net.de>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-30 23:56:33 +02:00
Randy Dunlap
72ee59b579 kbuild modpost - relax driver data name
Relax driver data name from *_driver to *driver.
This fixes the 26 section mismatch warnings in drivers/ide/pci.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-30 23:52:31 +02:00
Atsushi Nemoto
c8d8b837eb kbuild: fix modpost segfault for 64bit mipsel kernel
64bit mips has different r_info layout.  This patch fixes modpost
segfault for 64bit little endian mips kernel.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-30 23:36:48 +02:00
Dmitry Torokhov
7b7e394185 Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-04-29 01:11:23 -04:00
Dmitry Torokhov
ddc5d34145 Input: move input_device_id to mod_devicetable.h
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-04-26 00:14:19 -04:00
Randy Dunlap
9dfb563b07 [PATCH] config: update usage/help info
Replace outdated help message with a reference to README.  Update README
for make *config variants and environment variable info.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19 09:13:52 -07:00
Linus Torvalds
1d73135e55 Merge master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild
* master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild:
  kbuild: fix false section mismatch warnings
2006-04-14 17:30:55 -07:00
Sam Ravnborg
5ecdd0f67c kbuild: fix false section mismatch warnings
Darren Jenkins <darrenrjenkins@gmail.com> pointed out a
number of false positives where we referenced variables
from a _driver variable.
Fix it by check for that pattern and ignore it.

Randy.Dunlap <rdunlap@xenotime.net> pointed out a similar
set of warnings for a number of scsi drivers.
In scsi world they misname their variables *_template or
*_sht so add these to list of variables that may have references
to .init.text with no warning.

Randy.Dunlap <rdunlap@xenotime.net> also pointed out a scsi driver
with many references to .exit.text from .rodata. This is compiler
generated references and we already ignore these for .init.text, so
ignore them for .exit.text also.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-15 00:35:22 +02:00
Samuel Thibault
f043ca43c1 [PATCH] Enhancing accessibility of lxdialog
For easily getting fairly good accessibility, the TTY cursor should
always be left at the focus location.  This patch fixes the checklist by
just having the list refreshed after the dialog box (hence the cursor
position remains in the list).

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-14 09:15:09 -07:00
Roman Zippel
b5ac4817de kconfig: fix typo in change count initialization
Configuration needs saving when either of these conditions is true.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-11 13:41:06 +02:00
Roman Zippel
94f2505be3 kconfig: recenter menuconfig
Move the menuconfig output more into the centre again, it's using a
fixed position depending on the window width using the fact that the
menu output has to work in a 80 chars terminal.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-11 13:41:06 +02:00
Roman Zippel
59c6a3f4d7 kconfig: revert conf behaviour change
After the last patch fixed the real problem, revert this needless behaviour
change of conf, which only hid the real problem.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-11 13:41:06 +02:00
Roman Zippel
40aee729b3 kconfig: fix default value for choice input
The wrong default value can cause conf to end up in endless loop for choice
questions.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-11 13:41:06 +02:00
Eric Sesterhenn
eaaae38c1a kbuild: fix NULL dereference in scripts/mod/modpost.c
before is NULL in this case, concluding from the surrounding code
it seems that after is the right one to use.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-11 13:37:07 +02:00
Paolo 'Blaisorblade' Giarrusso
71378be91f kbuild: fix mode of checkstack.pl and other files.
Make it executable like it should be. Do the same for other files intended to be
executed by the user - the ones called by the build process needn't be
executable as they already work (as argument to their interpreter).

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-11 13:37:07 +02:00
Sam Ravnborg
d39a206bc3 kbuild: rebuild initramfs if content of initramfs changes
initramfs.cpio.gz being build in usr/ and included in the
kernel was not rebuild when the included files changed.

To fix this the following was done:
- let gen_initramfs.sh generate a list of files and directories included
  in the initramfs
- gen_initramfs generate the gzipped cpio archive so we could simplify
  the kbuild file (Makefile)
- utilising the kbuild infrastructure so when uid/gid root mapping changes
  the initramfs will be rebuild

With this change we have a much more robust initramfs generation.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-11 13:24:32 +02:00
Sam Ravnborg
d9df92e22a kbuild: properly pass options to hostcc when doing make O=..
This fix a longstanding bug where proper options was not
passed to hostcc in case of a make O=.. build.
This bug showed up in (not yet merged) klibc, and is not known
to have any counterpart in-kernel.
Fixed by moving the flags macro to Kbuild.include so it can be used
by both Makefile.lib and Makefile.host.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-07 08:36:49 +02:00
Alexey Dobriyan
ea88df9bf8 ver_linux: don't print reiser4progs version if none found
Sam: did the same for reiserprogs

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-05 13:10:19 +02:00
Arjan van de Ven
4bdc3b7f1b [PATCH] x86_64: Basic reorder infrastructure
This patch puts the infrastructure in place to allow for a reordering of
functions based inside the vmlinux. The general idea is that it is possible
to put all "common" functions into the first 2Mb of the code, so that they
are covered by one TLB entry. This as opposed to the current situation where
a typical vmlinux covers about 3.5Mb (on x86-64) and thus 2 TLB entries.

This is done by enabling the -ffunction-sections flag in gcc, which puts
each function in its own ELF section, so that the linker can then order them
in a way defined by the linker script.

As per previous discussions, Linus said he wanted a "static" list for this,
eg a list provided by the kernel tarbal, so that most people have the same
ordering at least. A script is provided to create this list based on
readprofile(1) output. The included list is provisional, and entirely biased
on my own testbox and me running a few kernel compiles and some other
things.

I think that to get to a better list we need to invite people to submit
their own profiles, and somehow add those all up and base the final list on
that. I'm willing to do that effort if this is ends up being the prefered
approach. Such an effort probably needs to be repeated like once a year or
so to adopt to the changing nature of the kernel.

Made it a CONFIG with default n because it increases link times
dramatically.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 09:10:56 -08:00
Linus Torvalds
2e1ca21d46 Merge master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild
* master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild: (46 commits)
  kbuild: remove obsoleted scripts/reference_* files
  kbuild: fix make help & make *pkg
  kconfig: fix time ordering of writes to .kconfig.d and include/linux/autoconf.h
  Kconfig: remove the CONFIG_CC_ALIGN_* options
  kbuild: add -fverbose-asm to i386 Makefile
  kbuild: clean-up genksyms
  kbuild: Lindent genksyms.c
  kbuild: fix genksyms build error
  kbuild: in makefile.txt note that Makefile is preferred name for kbuild files
  kbuild: replace PHONY with FORCE
  kbuild: Fix bug in crc symbol generating of kernel and modules
  kbuild: change kbuild to not rely on incorrect GNU make behavior
  kbuild: when warning symbols exported twice now tell user this is the problem
  kbuild: fix make dir/file.xx when asm symlink is missing
  kbuild: in the section mismatch check try harder to find symbols
  kbuild: fix section mismatch check for unwind on IA64
  kbuild: kill false positives from section mismatch warnings for powerpc
  kbuild: kill trailing whitespace in modpost & friends
  kbuild: small update of allnoconfig description
  kbuild: make namespace.pl CROSS_COMPILE happy
  ...

Trivial conflict in arch/ppc/boot/Makefile manually fixed up
2006-03-25 08:48:48 -08:00
Linus Torvalds
1e8c573933 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (21 commits)
  BUG_ON() Conversion in drivers/video/
  BUG_ON() Conversion in drivers/parisc/
  BUG_ON() Conversion in drivers/block/
  BUG_ON() Conversion in sound/sparc/cs4231.c
  BUG_ON() Conversion in drivers/s390/block/dasd.c
  BUG_ON() Conversion in lib/swiotlb.c
  BUG_ON() Conversion in kernel/cpu.c
  BUG_ON() Conversion in ipc/msg.c
  BUG_ON() Conversion in block/elevator.c
  BUG_ON() Conversion in fs/coda/
  BUG_ON() Conversion in fs/binfmt_elf_fdpic.c
  BUG_ON() Conversion in input/serio/hil_mlc.c
  BUG_ON() Conversion in md/dm-hw-handler.c
  BUG_ON() Conversion in md/bitmap.c
  The comment describing how MS_ASYNC works in msync.c is confusing
  rcu: undeclared variable used in documentation
  fix typos "wich" -> "which"
  typo patch for fs/ufs/super.c
  Fix simple typos
  tabify drivers/char/Makefile
  ...
2006-03-25 08:41:09 -08:00
Jesper Juhl
f1a136e0d0 [PATCH] kallsyms: handle malloc() failure
This fixes coverity bugs #398 and #397

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:56 -08:00
Uwe Zeisberger
c30fe7f731 fix typos "wich" -> "which"
Signed-off-by: Uwe Zeisberger <zeisberg@informatik.uni-freiburg.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-24 18:23:14 +01:00
Alexey Dobriyan
008accbbae [PATCH] extract-ikconfig: don't use --long-options
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:21 -08:00
Alexey Dobriyan
ff45e99dcd [PATCH] extract-ikconfig: be sure binoffset exists before extracting
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:21 -08:00
Alexey Dobriyan
66f9f59a5b [PATCH] extract-ikconfig: use mktemp(1)
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:21 -08:00
Sam Ravnborg
eae0f536f6 kbuild: remove obsoleted scripts/reference_* files
The checks performed by scripts/reference_* has been moved to modpost.
Remove the files and their reference in top-level Makefile.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-21 07:28:24 +01:00
Greg Kroah-Hartman
9f28bb7e1d [PATCH] add EXPORT_SYMBOL_GPL_FUTURE()
This patch adds the ability to mark symbols that will be changed in the
future, so that kernel modules that don't include MODULE_LICENSE("GPL")
and use the symbols, will be flagged and printed out to the system log.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20 13:42:58 -08:00
Sam Ravnborg
7670f023aa [PATCH] kbuild: fix buffer overflow in modpost
Jiri Benc <jbenc@suse.cz> reported that modpost would stop with SIGABRT if
used with long filepaths.
The error looked like:
>   Building modules, stage 2.
>   MODPOST
> *** glibc detected *** scripts/mod/modpost: realloc(): invalid next size:
+0x0809f588 ***
> [...]

Fix this by allocating at least the required memory + SZ bytes each time.
Before we sometimes ended up allocating too little memory resuting in the
glibc detected bug above.  Based on patch originally submitted by: Jiri
Benc <jbenc@suse.cz>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-17 07:51:25 -08:00
Jan Beulich
dc9a49a4af kconfig: fix time ordering of writes to .kconfig.d and include/linux/autoconf.h
Since .kconfig.d is used as a make dependency of include/linux/autoconf.h, it
should be written earlier than the header file, to avoid a subsequent rebuild
to consider the header outdated.

Signed-Off-By: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-12 23:38:20 +01:00
Chuck Ebbert
7d1859835c kbuild: add -fverbose-asm to i386 Makefile
Add -fverbose-asm to i386 Makefile rule for building .s files.  This makes
the assembler output much more readable for humans.

Suggested by Der Herr Hofrat <der.herr@hofr.at>

Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-12 23:35:16 +01:00
Sam Ravnborg
ce56068694 kbuild: clean-up genksyms
o remove all inlines
o declare everything static which is only used by genksyms.c
o delete unused functions
o delete unused variables
o delete unused stuff in genksyms.h
o properly ident genksyms.h

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-12 23:26:29 +01:00
Sam Ravnborg
78c041530a kbuild: Lindent genksyms.c
No fix-ups applied yet. Just the raw Lindent output.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-12 22:59:36 +01:00
Sam Ravnborg
c79c7b0923 kbuild: fix genksyms build error
genksyms needs to know when a symbol must have a "_" prefex as is
true for a few architectures.
Pass $(ARCH) as commandline argument and hardcode what architectures that
needs this info.
Previous attemt to take it from elfconfig.h was br0ken since elfconfig.h
is a generated file.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-12 22:54:34 +01:00
Sam Ravnborg
0131705d58 kbuild: replace PHONY with FORCE
.PHONY: does not take patterns so use FORCE to achive same effect.
Thanks to "Paul D. Smith" <psmith@gnu.org> for noticing this.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-08 18:39:05 +01:00
Luke Yang
f7b05e64bd kbuild: Fix bug in crc symbol generating of kernel and modules
The scripts/genksyms/genksyms.c uses hardcoded "__crc_" prefix for
crc symbols in kernel and modules. The prefix should be replaced by
"MODULE_SYMBOL_PREFIX##__crc_" otherwise there will be warnings when
MODULE_SYMBOL_PREFIX is not NULL.

I am sorry my last patch for this issue is actually wrong. I revert
it in this patch.

Signed-off-by: Luke Yang <luke.adi@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-08 18:33:16 +01:00
Bastian Blank
de1d9c033f [PATCH] s390: fix match in ccw modalias
Fix matching of devmodel in modaliases.  It breaks automatic loading of any
dasd module.

Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-06 18:40:45 -08:00
Paul Smith
4f1933620f kbuild: change kbuild to not rely on incorrect GNU make behavior
The kbuild system takes advantage of an incorrect behavior in GNU make.
Once this behavior is fixed, all files in the kernel rebuild every time,
even if nothing has changed.  This patch ensures kbuild works with both
the incorrect and correct behaviors of GNU make.

For more details on the incorrect behavior, see:

http://lists.gnu.org/archive/html/bug-make/2006-03/msg00003.html

Changes in this patch:
  - Keep all targets that are to be marked .PHONY in a variable, PHONY.
  - Add .PHONY: $(PHONY) to mark them properly.
  - Remove any $(PHONY) files from the $? list when determining whether
    targets are up-to-date or not.

Signed-off-by: Paul Smith <psmith@gnu.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-06 00:09:51 +01:00
Sam Ravnborg
7b75b13cda kbuild: when warning symbols exported twice now tell user this is the problem
Warning now looks like this:
WARNING: vmlinux: 'strcpy' exported twice. Previous export was in vmlinux

Which gives much better hint how to fix it.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-05 13:48:58 +01:00
Sam Ravnborg
43c74d1795 kbuild: in the section mismatch check try harder to find symbols
When searching for symbols the only check performed was if
offset equals st_value. Adding an additional check to see if st_name
points t a valid name made us sort out a few more false positives and
let us report more correct names in warnings.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-05 12:02:46 +01:00
Sam Ravnborg
e835a39c1c kbuild: fix section mismatch check for unwind on IA64
Parameters to strstr() was reversed.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-05 11:34:15 +01:00
Sam Ravnborg
9209aed072 kbuild: kill false positives from section mismatch warnings for powerpc
Building an allmodconfig kernel for ppc64 revealed a number of false
positives - originally reported by Andrew Morton.
This patch removes most if not all false positives for ppc64:

Section .opd
The .opd section contains function descriptors at least for ppc64.
So ignore it for .init.text (was ignored for .exit.text).
See description of function descriptors here:
http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi-1.7.html

Section .toc1
ppc64 places some static variables in .toc1 - ignore the.

Section __bug_tabe
BUG() and friends uses __bug_table. Ignore warnings from that section.

Module parameters are placed in .data.rel for ppc64, for adjust pattern to
match on section named .data*

Tested with gcc: 3.4.0 and binutils 2.15.90.0.3

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-05 00:16:26 +01:00
Sam Ravnborg
62070fa42c kbuild: kill trailing whitespace in modpost & friends
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
Jesper Juhl
e11f04962c kbuild: small update of allnoconfig description
'allnoconfig' is described by 'make help' as a "minimal config", that's not
strictly correct. To be pedantic, a minimal config would be one where
EMBEDDED was set to Y and most things therein disabled etc. Simply
answering 'no' to all options does not give a minimal config.
A better description of allnoconfig is that it answers all options with 'no'.

This patch updates the description.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-27 05:07:27 +01:00
Aaron Brooks
3a25f0b19f kbuild: make namespace.pl CROSS_COMPILE happy
Using the fixed path to /usr/bin/{nm,objdump} does not allow
CROSS_COMPILE environments to use namespace.pl. This patch causes
namespace.pl to use $NM and $OBJDUMP if defined or fall back to the nm
and objdump found in the path.

Signed-off-by: Aaron Brooks <aaron.brooks@sicortex.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-27 05:05:40 +01:00
Sam Ravnborg
4c8fbca583 kbuild: whitelist false section mismatch warnings
In several cases the section mismatch check triggered false warnings.
Following patch introduce a whitelist to 'false positives' are not warned of.
Two types of patterns are recognised:
1) Typical case when a module parameter is _initdata
2) When a function pointer is assigned to a driver structure

In both patterns we rely on the actual name of the variable assigned

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
Sam Ravnborg
382168f479 kbuild: Add copyright to modpost.c
It seems popular to protect your work with copyright, so I decided to do
so for modpost which I patch a great deal atm.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 20:11:17 +01:00
Sam Ravnborg
6e10133fa4 kbuild: do not warn when unwind sections references .init/.exit sections
Andrew Morton reported a number of false positives for ia64 - like these:
WARNING: drivers/acpi/button.o - Section mismatch: reference to .init.text: from .IA_64.unwind.init.text after '' (at offset 0x0)
WARNING: drivers/acpi/button.o - Section mismatch: reference to .exit.text: from .IA_64.unwind.exit.text after '' (at offset 0x0)
WARNING: drivers/acpi/processor.o - Section mismatch: reference to .init.text: from .IA_64.unwind after '' (at offset 0x1e8)

They are all false positives - or at least the .c code looks OK.
It is not known why sometimes a section name is appended and sometimes not.

Fix is to accept references from all sections that includes "unwind." in the name.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-22 21:24:50 +01:00
akpm@osdl.org
fededcd2af kbuild: fix modpost compile with older gcc
The kernel now requires that CC be 3.1.0 or higher.  But we shouldn't place
that requirement upon HOSTCC unless we really need to.  Fixes my ia64 problem.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-22 20:23:51 +01:00
Sam Ravnborg
93684d3b80 kbuild: include symbol names in section mismatch warnings
Try to look up the symbol that is referenced. Include the symbol
name in the warning message.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 11:53:35 +01:00
Sam Ravnborg
8ea80ca4f5 kbuild: fix segfault in modpost
Do not try to look up section name until we know it is not a special
section. Otherwise we will address outside legal space and segfault.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 09:56:18 +01:00
Sam Ravnborg
41370d3b5e kbuild: do not segfault in modpost if MODVERDIR is not defined
A combination of calling modpost with option -a and MODVERDIR undefined
caused segmentation fault. So provide a default value and accept the
error messages it generates instead.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 09:51:22 +01:00
Sam Ravnborg
9d6e7a709c kbuild: fix comment in Kbuild.include
Noted by Olaf Hering <olh@suse.de>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 09:51:22 +01:00
Brian Gerst
18a43ba26d kbuild: remove checkconfig.pl
checkconfig.pl is no longer needed now that autoconf.h is automatically
included.  Remove it and all references to it.

Signed-off-by: Brian Gerst <bgerst@didntduck.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 09:51:22 +01:00
Jan Beulich
96678281bf kbuild: fix mkmakefile
With the current way of generating the Makefile in the output directory
for builds outside of the source tree, specifying real targets (rather
than phony ones) doesn't work in an already (partially) built tree, as
the stub Makefile doesn't have any dependency information available.
Thus, all targets where files may actually exist must be listed
explicitly and, due to what I'd call a make misbehavior, directory
targets must then also be special cased.

Signed-Off-By: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 09:51:21 +01:00
Jan Beulich
6176aa9ae4 kbuild: consolidate command line escaping
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>
2006-02-19 09:51:21 +01:00
Sam Ravnborg
20a468b513 kbuild: make cc-version available in kbuild files
Move $(CC) support functions to Kbuild.include so they are available
in the kbuild files.
In addition the following was done:
	o as-option documented in Documentation/kbuild/makefiles.txt
	o Moved documentation to new section to match
	  new scope of functions
	o added cc-ifversion used to conditionally select a text string
	  dependent on actual $(CC) version
	o documented cc-ifversion
	o change so Kbuild.include is read before the kbuild file

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 09:51:20 +01:00
Sam Ravnborg
b39927cf4c kbuild: check for section mismatch during modpost stage
Section mismatch is identified as references to .init*
sections from non .init sections. And likewise references
to .exit.* sections outside .exit sections.

.init.* sections are discarded after a module is initialized
and references to .init.* sections are oops candidates.
.exit.* sections are discarded when a module is built-in and
thus references to .exit are also oops candidates.

The checks were possible to do using 'make buildcheck' which
called the two perl scripts: reference_discarded.pl and
reference_init.pl. This patch just moves the same functionality
inside modpost and the scripts are then obsoleted.
They will though be kept for a while so users can do double
checks - but note that some .o files are skipped by the perl scripts
so result is not 1:1.
All credit for the concept goes to Keith Owens who implemented
the original perl scrips - this patch just moves it to modpost.

Compared to the perl script the implmentation in modpost will be run
for each kernel build - thus catching the error much sooner, but
the downside is that the individual .o file are not always identified.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 09:51:20 +01:00
Sam Ravnborg
8e70c45887 kbuild: warn about duplicate exported symbols
In modpost introduce a check for symbols exported twice.
This check caught only one victim (inet_bind_bucket_create) for
which a patch is already sent to netdev.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 09:51:18 +01:00
Sam Ravnborg
040fcc819a kbuild: improved modversioning support for external modules
With following patch a second option is enabled to obtain
symbol information from a second external module when a
external module is build.
The recommended approach is to use a common kbuild file but
that may be impractical in certain cases.
With this patch one can copy over a Module.symvers from one
external module to make symbols (and symbol versions) available
for another external module.

Updated documentation in Documentation/kbuild/modules.txt

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 09:51:18 +01:00
Sam Ravnborg
5c3ead8c72 kbuild: apply CodingStyle to modpost.c
Just some light CodingStyle updates - no functional changes.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 09:51:17 +01:00
Sam Ravnborg
cb80514d9c kbuild: use warn()/fatal() consistent in modpost
modpost.c provides warn() and fatal() - so use them all over the place.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 09:51:17 +01:00
Linus Torvalds
15508d22d0 Revert "[PATCH] kconfig: detect if -lintl is needed when linking conf,mconf"
This reverts commit 5e375bc7d5.

Kyle McMartin steps on his soap-box:

  "Sigh.  Can everyone please stop assuming gcc can output to /dev/null?
   On several platforms, ld tries to lseek in the output file, and fails
   if it can't."

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-09 08:00:14 -08:00
Linus Torvalds
eeb059e0a6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-bugfix 2006-02-07 10:01:43 -08:00
Robb, Sam
5e375bc7d5 [PATCH] kconfig: detect if -lintl is needed when linking conf,mconf
On a system where libintl.h is present, but the NLS functionality is
supplied by a separate library instead of the system C library, an attempt
to "make config" or "make menuconfig" will fail with link errors, ex:

  scripts/kconfig/mconf.o:mconf.c:(.text+0xf63): undefined reference to
    `_libintl_gettext'

This patch attempts to correct the problem by detecting whether or not NLS
support requires linking with libintl.

Signed-off-by: Samuel J Robb <sam.robb@timesys.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-05 11:06:54 -08:00
Randy Dunlap
3c3b809e25 [PATCH] kernel-doc: clean up the script (whitespace)
Remove lots of trailing whitespace.  Nothing else.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-01 08:53:27 -08:00
Randy Dunlap
d28bee0c0a [PATCH] Doc/kernel-doc: add more usage info
- Add info that structs, unions, enums, and typedefs are supported.

- Add doc about "private:" and "public:" tags for struct fields.

- Fix some typos.

- Remove some trailing whitespace.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-01 08:53:27 -08:00
Martin Waitz
9598f91f22 [PATCH] DocBook: allow even longer return types
kernel-doc errored out because it could not understand the new __copy_to_user
definition.  Now we allow return types with four words.

Signed-off-by: Martin Waitz <tali@admingilde.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-01 08:53:27 -08:00
Sam Ravnborg
3835f82183 kconfig: fix /dev/null breakage
While running "make menuconfig" and "make mrproper"
some people experienced that /dev/null suddenly changed
permissions or suddenly became a regular file.
The main reason was that /dev/null was used as output
to gcc in the check-lxdialog.sh script and gcc did
some strange things with the output file; in this
case /dev/null when it errorred out.

Following patch implements a suggestion
from Bryan O'Sullivan <bos@serpentine.com> to
use gcc -print-file-name=libxxx.so.

Also the Makefile is adjusted to not resolve value of
HOST_EXTRACFLAGS and HOST_LOADLIBES until they are actually used.
This prevents us from calling gcc when running make *clean/mrproper

Thanks to Eyal Lebedinsky <eyal@eyal.emu.id.au> and
Jean Delvare <khali@linux-fr.org> for the first error reports.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
2006-01-21 12:03:09 +01:00
Sam Ravnborg
2244cbd8a9 kbuild: create .kernelrelease at *config step
To enable 'make kernelrelease' earlier now create .kernelrelease when
one of the *config targets are used.
Also introduce KERNELVERSION - only user is kconfig.
KERNELVERSION was needed to display kernel version in menuconfig -
KERNELRELEASE is not valid until configuration has completed.
kconfig files modified to use KERNELVERSION.
Bug reported by: Rene Rebe <rene@exactcode.de>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-16 12:12:12 +01:00