Added three function to top-level Makefile:
cc-option (replacing check_gcc)
cc-option-yn (as cc-option but return y or n)
cc-version (numeric version of $(CC))
Documentation added to Documentation/kbuild/makefiles.txt

The check_gcc version is still present, but now spit out a arning if used.
The new naming where chosen to get consistent naming of all three functions
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Using separate assignment for CHECKFLAGS allows convenient redefinition of CHECK
on the command line:
make CHECK=~/bin64/sparse C=2
to use a special 64 bit version.
Introduced usage in all archs that assined values to CHECK.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Chris Wedgwood <cw@f00f.org> wrote:
> P.S. I'd love to see the rules in scripts/Makefile.* documented.  I
>      would offer a patch for this but I don't understand the rules
>      myself...
And provided the following patch, slightly modified by me.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Makefile: remove obsolete HEAD
arch/cris/Makefile: replace HEAD with assignment to head-y
Signed-off-by: Coywolf Qi Hunt <coywolf@greatcn.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Russell King reported that some gcc / bin-utils combination may result in
undefined symbols in vmlinux and implemented a check for that.
Though the cause is very valid this check has proved to be a real pain
for other users, especially sparc and um.
Short term a similar check is asked to be implemented in arch/arm*/Makefile
and long-term to bail out if too old gcc / bin-utils is used.
Long term plan awaits a new gcc / bin-utils release.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Correct gcc warnings for function return type, printf argument
types, and signed/unsigned compare.

Cross-compiled with no warnings/errors for alpha, ia64,
ppc32, ppc64, sparc32, sparc64, x86_64, and native on i386.
(-W -Wall)

[pre-built tool chains are available from:
http://developer.osdl.org/dev/plm/cross_compile/ ]
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

With make C=2 sparse ($(CHECK)) will be run on all .c files also if they
do not need to be compiled.
Usefull to run sparse on a fully compiled kernel tree.
Implemented on request from Al Viro (although he liked to be able to
run sparse without building any source).
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Fixes the following error:
make: *** No rule to make target `.tmp_kallsyms2.S', needed by `.tmp_kallsyms2.o'.

Problem is that make does not know it have to visit scripts before it can use $(KALLSYMS)
$(KALLSYMS) is a dependency to .tmp_kallsyms% but make suddenly complains about
.tmp_kallsyms2 for some reasons.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Only warn if $(host-progs) and $(hostptogs-y) are not equal.
This allows external modules to use:
hostprogs-y := file ...
host-progs  := $(hostprogs-y)

This is backwards compatible and will not warn.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Localize Kconfig debug options into one file (lib/Kconfig.debug)
for easier maintenance, searching, and menu-building.

Updated to 2.6.8.

Summary of changes:

. localizes the following symbols in lib/Kconfig.debug:
    DEBUG_KERNEL, MAGIC_SYSRQ, DEBUG_SLAB, DEBUG_SPINLOCK,
    DEBUG_SPINLOCK_SLEEP, DEBUG_HIGHMEM, DEBUG_BUGVERBOSE,
    DEBUG_INFO
  and FRAME_POINTER for some instances of it (if it's freely
  user-selectable) but not for the cases where it's forced or
  it depends on some other options.
. adds DEBUG_KERNEL requirement to some DEBUG_vars;
. remove KALLSYMS from S390-specific kernel hacking menu;
  use KALLSYMS in the EMBEDDED menu instead;
. add CRIS and M68KNOMMU symbols for use in lib/Kconfig.debug;
. eliminate duplicate "General setup" labels in sparc64 config;
. whitespace cleanup;
. fixed a few trival typos;

Portions of the original patch were also done by
Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

This patch removes unnecessary wildcard on KBUILD_OUTPUT
Signed-off-by: Coywolf Qi Hunt <coywolf@greatcn.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

into mars.ravnborg.org:/home/sam/bk/kbuild

Needed now the lds files got renamed
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

For all architectures use the new name for linker definition scripts.
Based on patch from: Dan Aloni <da-x@colinux.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

When building a kernel on platforms where the filesytem do
not distingush between upper and lower case the rule:
.S -> .s did not work.
In a normal build this is only used for linker scripts.
So create a separate rule for .lds files, and use generic cpp flags.

Patch from: Dan Aloni <da-x@colinux.org>
Modified to use cpp flags + added documentation.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

From: Pavel Roskin <proski@gnu.org>
The recent fixes for the external module build have fixed the major
breakage, but they left one annoyance unfixed.  If CONFIG_MODVERSIONS is
disabled, a warning is printed for every exported symbol that is has no
CRC.  For instance, I see this when compiling the standalone Orinoco
driver on Linux 2.6.6-rc3:

*** Warning: "__orinoco_down" [/usr/local/src/orinoco/spectrum_cs.ko] has
no CRC!
*** Warning: "hermes_struct_init" [/usr/local/src/orinoco/spectrum_cs.ko]
has no CRC!
*** Warning: "free_orinocodev" [/usr/local/src/orinoco/spectrum_cs.ko] has
no CRC!
[further warnings skipped]

I have found that the "-i" option for modpost is used for external builds,
whereas the internal modules use "-o".  The "-i" option causes read_dump()
in modpost.c to be called.  This function sets "modversions" variable
under some conditions that I don't understand.  The comment before the
modversions declarations says: "Are we using CONFIG_MODVERSIONS?"

Apparently modpost fails to answer this question.  I think it's better to
use an explicit option rather than a kludge.

The attached patch adds a new option "-m" that is specified if and only if
CONFIG_MODVERSIONS is enabled.  The patch has been successfully tested
both with and without CONFIG_MODVERSIONS.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

This patch teaches scripts/kernel-doc to print descriptions
of comma separated variables correctly instead of ignoring
them.

Tested on 'make pdfdocs' and 'scripts/kernel-doc -text test.c'.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

into mars.ravnborg.org:/home/sam/bk/kbuild

David S. Miller <davem@redhat.com> wrote:
Shouldn't we be grepping __crc_ symbols out of the System.map file?

For one thing, these can confuse readprofile.  It's algorithm is
to start at _stext, then stop when it sees a line in the System.map
which is not text (mode is one of 'T' 't' 'W' or 'w')

It will exit early if there are some intermixed __crc_* things in
there (since they are are mode 'A').

For example, in my current sparc64 kernel I have this:

00000000004cef80 t do_split
00000000004cf2a0 t add_dirent_to_buf
00000000004cf5a7 A __crc_init_special_inode
00000000004cf640 t make_indexed_dir
00000000004cf900 t ext3_add_entry

So no symbols after add_dirent_to_buf will be shown in the profiling
output of readprofile.

Implementation ported to mksysmap by Sam.
Included two System.map related fixes:
- Print "SYSMAP  System.map" during build
- Sort symbols in System.map
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

into ppc970.osdl.org:/home/torvalds/v2.6/linux

Fix stupid thinkos in the fcntl f_op removal code.

Tssk. 

Pointed out by Kai Makisara.

into intel.com:/home/lenb/src/linux-acpi-test-2.6.8

Fixes two common boot failures due to buggy SMM BIOS code

SMP boot crash if SMI_CMD=ACPI written from CPU1
http://bugzilla.kernel.org/show_bug.cgi?id=2941

laptop crash due to LAPIC timer before SMI_CMD=ACPI
http://bugzilla.kernel.org/show_bug.cgi?id=1269

into intel.com:/home/lenb/src/linux-acpi-test-2.6.8

Update lasi 82596 driver:
 - Fix boot messages (Helge Deller)
 - Whitespace and __FILE__ usage (Joel Soete)
 - 64-bit compile warning fixes (James Bottomley)

This trivial fix allows mounting MO-drives readwrite.

Acked by Jens.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

 - __PAGE_OFFSET is 0x10000000 (Randolph Chung)
 - PA8800 support (Grant Grundler)
 - debuglocks (Thibaut Varene)
 - PDC chassis disabling (Thibaut Varene)
 - Distinguish between Dinos in request_irq (Thibaut Varene)
 - Document interrupt registers (Randolph Chung)
 - Revamp CONFIG_DISCONTIGMEM support (Randolph Chung)
 - Remove STI console warning and special casing (Randolph Chung)
 - n4000 defconfig (Randolph Chung)
 - iosapic fixes (Bjorn Helgaas)
 - Fix a bug in entry.S where pa_dbit_lock was being trashed (Randolph Chung)
 - SMP support (Randolph Chung, Grant Grundler, James Bottomley)
 - Clear the pte in the fault handler (Joel Soete)
 - Change _exit prototype (Carlos O'Donell)
 - Better unwinding support (Randolph Chung)
 - GCC 3.4 fixes (Carlos O'Donell, Randolph Chung)

The newly introduced ->fcntl file_operation is badly thought out,
not to mention undocumented.  This patch replaces it with two better
defined operations -- check_flags and dir_notify.  Any other fcntl()s
that filesystems are interested in can have their own properly typed
f_op method when they need it.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into ppc970.osdl.org:/home/torvalds/v2.6/linux

Patch from Marc Singer

The work already done to rectify the timer code initialization missed
a necessary change.  This patch adds a timer initialization function
to the LPD7A400 machine type.  It also makes a small correction to the
kernel configuration that is out of step with the machine specific
Kconfig.