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Make the kernel print out symbolic bactraces if symbol table information
is available (CONFIG_KALLSYMS)

They were partially broken by the SUBDIRS changes and could need
some cleanup anyway.

Some people have their "cd" command print $PWD, so they would end
up with $PWD in their include/modversions.h, which is not quite what we
want.

Sometimes bk still gets me... The previous changes won't work without
the updated top-level Makefile ;)

Of course it's possible to use the standard "built-in.o" in arch/* as well,
so do it for i386 - other archs still using O_TARGET are not affected by
this change.

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.

Sam Ravnborg:

Yep, "if_changed_dep" uses fixdep, so a dependency to scripts is needed.
Added echo_target as well, so the result file is printed as well.

Use the same rule as in Rules.make for preprocessing 
vmlinux.lds.S, that also gives automatic dependency tracking.
This means we should also use the standard AFLAGS_... instead
of CPPFLAGS_... to provide specific additional flags.

Just some cosmetical changes to align output in non-verbose mode.

Tthis one seems to have been around since 2.5.31 and nobody has fixed it
yet...

Some archs use the C preprocessor to adapt their vmlinux.lds script.
Introduce a common rule for these arch/*/Makefile's to use.

HPATH won't work with separate obj/src dirs, since it doesn't specify
if we want to look at source or generated files. Fortunately, most uses
in arch/*/Makefile were superfluous anyway, the others were converted to
explicitly $(srctree) or $(objtree).

Additionally, a bit more of srctree / objtree related cleanup.

When any [Cc]onfig.in file changes, the user should rerun "make oldconfig",
so tell him to do so

(Sam Ravnborg)

No reason to keep this knowledge in a central place when it can be avoided

This patch (against 2.5.30) contains all of the changes to generic code
needed by UML.

CREDITS -
	Changes my address and adds a UML credit for Lars Brinkoff.

MAINTAINERS -
	Adds a UML entry.

Makefile -
	When ARCH=um is on the command line to do a UML build, the old value
	of ARCH is saved in $(SUBARCH) for the later use of the UML build.

drivers/char/Makefile -
	Sets KEYMAP, KEYBD, CONSOLE empty to prevent hardware drivers from
	being compiled in.

drivers/net/setup.c -
	Backs out a UML hook which leaked into your tree which UML no
	longer uses.

pointed out by Sam Ravnborg

The rewritten makefile for DocBook requires that working directory
is $(TOPDIR) therefore use -f Documentation/DocBook/Makefile to
invoke the docbook makefile.

To support the new DocBook makefile the script target needs to be located
the block that is checked for precense of a .config file.

the global irq-lock debugging

The serial layer is restructured to allow less code duplication (and
hence bug duplication) across various serial drivers.  Since ARM adds
six extra serial drivers, maintaining six copies of serial.c was not
my idea of fun.

Therefore, we've ended up with a core serial driver, which knows about
the interactions with the tty layer, and low-level hardware drivers,
which know all about the hardware.  The interface between the two is
described in "Documentation/serial/driver".

This patch completely removes the old serial.c driver and its associated
configuration options, as you requested at KS2002.  We keep a certain
amount of configuration compatibility with the per-architecture serial.h
file for the moment; this *will* be killed in the next round of patches.
The biggest user of this is x86, and since I don't have an x86 box to
test this stuff on, I think the changes are best kept separate.

Added the new target "help" that list the most common targets
Calls down to Documentation/Makefile to list documentation targets.
Furthermore calls down to the architecture specific Makefile
to list architecture specific targets.
So far only i386 is supporting this.

Use the Rules.make provided objcopy command and untangle piggy.o
generation.