Introduced filechk for all architectures that previously used
update-if-changed.
No longer add asmoffsets.h.tmp to CLEAN_FILES.
This is a private file to the filechk rule

Certain support files are shared between various ARM machine classes.
In other to sanely support these, we place the shared files in
arch/arm/common instead of the individual machine class directories.

ARM GCC 2.95 generates frame pointers by default.  GCC 3.2.x seems
to require some persuasion to generate them, despite being required
for debugging.

Replace done for all archs except mips* and cris.
These architectures are lacking too much behind that it made sense

The recent change in the top level makefile allowed this clean-up in all
the architecture specific Makefiles.
No functional changes, just deleted the now optional targets

Moved archhelp to arch/arm/Makefile
Introduced usage of $(build) and $(clean)

Added prerequisite FORCE in several rules, now kbuild build a kernel even
the second time you try.
Corrected several errors to avoid errornous rebuild of targets in arch/arm
Lot's of trivial clean-up

- Add LDFLAGS_BLOB definitions
- Tweak kernel_thread for better code
- Fix vmlinux-armv.lds.in to prevent ld complaining about the
  architecture private flags.
(I'm not certain that the last item isn't a hole in some bug fix in
ld - this fix appears to work with every binutils I've found thus
far.  However, if this suspected bug gets fixed, we're going to have
to rethink how we combine binary objects into ELF objects.)

Recent kbuild changes means that make clean fails on ARM because we
try to decend into "arch/arm/mach-" which doesn't exist.  This cset
fixes this by excluding this directory from core-y if $(MACHINE) is
undefined.

This cset adds support for kallsyms for the ARM kernel, and ensures
that we have a reliable function prolog for backtracing.

These two variables are used by more than just the linker;
they're also used by head.S to know where it can safely
place the page tables.  We therefore need to export it
from the Makefile.

These are also highly machine dependent; we don't want
to duplicate the same set of conditionals for cpp and
for the makefiles.

arch/arm/Makefile also contained a stray close-paren.  I'm
submitting this one to the lost property office.

We also always pass -mno-fpu to the assember; this
guarantees that any floating point will be caught.

Now that all archs use the same way to generate the link script, we can
handle it from the common top-level Makefile instead of the individual
arch/*/Makefile's.

This is an untested attempt to convert ARM to preprocessing vmlinux.lds.S
instead of running sed on it - This probably allows for further cleanup,
but I'll leave that to _rmk_.

- Fix ARM Makefile; we now build with -Os instead of -O2.
- Fix backtrace code to display more registers correctly.
- Fix various build errors.
- Fix PSR for architecture compliance.
- Update mach-types file.

Again, don't just add flags into $(OBJCOPY), but use the
variable $(OBJCOPYFLAGS) instead.

Everywhere else we use CFLAGS_<target> etc to designate special flags
for an object, so handle vmlinux the same way.

Switch ARM to the new way of asm offset generation.

FORCE is the de-facto standard name for a prequisite to force
recompilation, so instead of using a mix of 'dummy','FORCE' and
'FORCE_RECOMPILE' use 'FORCE' everywhere.

Also, move figuring out the path relative to the top level dir
into Rules.make, instead of calling an external script. 

It's possible to say "make <subdir>", to descend into that subdir
and recursively build things there. This patch provides this
facility generally without the arch Makefiles needing to duplicate
it for arch/$(ARCH)/somedir.

 - Provide an ARM architecture major version number so we can use the
   preprocessor more effectively to select features that ARMv4 and
   above contain.
 - Fix GCC 3.1 multi-line __asm__ build warnings

- Russell King: large ARM update
- Adam Richter et al: more kdev_t updates

  - Ivan Kokshaysky: fix alpha dec_and_lock with modules, for alpha config entry
  - Kai Germaschewski: ISDN updates
  - Jeff Garzik: network driver updates, sysv fs update
  - Kai Mäkisara: SCSI tape update
  - Alan Cox: large drivers merge
  - Nikita Danilov: reiserfs procfs information
  - Andrew Morton: ext3 merge
  - Christoph Hellwig: vxfs livelock fix
  - Trond Myklebust: NFS updates
  - Jens Axboe: cpqarray + cciss dequeue fix
  - Tim Waugh: parport_serial base_baud setting
  - Matthew Dharm: usb-storage Freecom driver fixes
  - Dave McCracken: wait4() thread group race fix

  - Trond Myklebust: deadlock checking in lockd server
  - Tim Waugh: fix up parport wrong #define
  - Christoph Hellwig: i2c update, ext2 cleanup
  - Al Viro: fix partition handling sanity check.
  - Trond Myklebust: make NFS use SLAB_NOFS, and not play games with PF_MEMALLOC
  - Ben Fennema: UDF update
  - Alan Cox: continued merging
  - Chris Mason: get /proc buffer memory sizes right after buf-in-page-cache

  - Rui Sousa: emu10k1 module fixes, remove joystick part.
  - Alan Cox: driver merges
  - Andrea Arkangeli: alpha updates
  - David Woodhouse: up_and_exit -> complete_and_exit
  - David Miller: sparc and network update
  - Andrew Morton: update 3c59x driver
  - Neil Brown: NFS export VFAT, knfsd cleanups, raid fixes
  - Ben Collins: ieee1394 updates
  - Paul Mackerras: PPC update
  - me: make sure we don't lose position bits in "filldir()"

  - Jeff Garzik: net driver updates, PCI PM induced cleanups
  - Me: do ACPI first, so that it doesn't mess up existing device driver
  configurations.  Notably it used to completely destroy PCMCIA on some
  Sony VAIOs.
  - Paul Mackerras: powermac drivers and MAINTAINERS update
  - NIIBE Yutaka: SuperH update
  - Johannes Erdfelt: USB driver updates
  - Russell King: ARM update
  - Alan Cox: merging, merging, merging

  - Hui-Fen Hsu: sis900 driver update
  - NIIBE Yutaka: Super-H update
  - Alan Cox: more resyncs (ARM down, but more to go)
  - David Miller: network zerocopy, Sparc sync, qlogic,FC fix, etc.
  - David Miller/me: get rid of various drivers hacks to do mmap
  alignment behind the back of the VM layer. Create a real
  protocol for it.

  - driver sync up with Alan
  - Andrew Morton: wakeup cleanup and race fix
  - Paul Mackerras: macintosh driver updates.
  - don't trust "page_count()" on reserved pages!
  - Russell King: fix serious IDE multimode write bug!
  - me, Jens, others: fix elevator problem
  - ARM, MIPS and cris architecture updates
  - alpha updates: better page clear/copy, avoid kernel lock in execve
  - USB and firewire updates
  - ISDN updates
  - Irda updates