usr.sbin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

config: drop dependency on libsbuf

Use an std::stringstream instead. get_word() and get_quoted_word() both
return a buffer that's presumed to not need release, so solve this by
returning a new special configword type that holds a string or eof/eol
state. This cleans up caller checking for EOF/EOL to make it more
explicit what they're doing, at least in the EOL cases which previously
checked for NULL.

Sponsored by: Klara, Inc.
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D38276

config: drop dependency on libnv

Compile mkmakefile.c as C++ instead and use an std::unordered_map to
accomplish the same goal.

Reviewed by: imp
Sponsored by: Klara, Inc.
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D38275

config: do not link against libl, it is not needed

MFC after: 3 days

config(8): Fix broken ABI

r336019 introduced ${SRCTOP}/sys to the include paths in order to pull in a
new sys/{c,}nv.h. This is wrong, because the build tree's ABI isn't
guaranteed to match what's running on the host system.

Fix instead by removing -I${SRCTOP}/sys and installing the libnv headers
with `make -C lib/libnv includes`... this may or may not get re-worked in
the future so that a userland lib isn't installing includes from sys/.

Reported by: bdrewery

config(8): De-dupe hint/env vars within a single file

r335653 flipped the order in which hints/env files are concatenated to match
the order in which vars are processed by the kernel. This is the other
hammer to drop.

Use nv(9) to de-dupe entries within a single `hint` or `env` file, using the
latest value specified for a key. This leaves some duplicates if a variable
is specified in multiple hint/env files or via `envvar` in a kernel config,
but the reversed order of concatenation (from r335653) makes this a
non-issue as the latest-specified version will be seen first.

This change also silently rewrote hint bits to use the same sanitization
process that ian@ wrote for r335642. To the kernel, hints and env vars are
basically the same thing through early boot, then get merged into the
dynamic environment once kmem becomes available and the dynamic environment
is created. They should be subjected to the same restrictions.

libnv has been added to -legacy for the time being to support the build of
config(8) with the new cnvlist API.

Tested with: universe (11 host & 12 host)
MFC after: 1 month

Revert r336011,r336012 until I can competently test

Fix build after r336011

Add libnv to bootstrap-tools, use ${SRCTOP}/sys headers.

config(8): De-dupe hint/env vars within a single file

r335653 flipped the order in which hints/env files are concatenated to match
the order in which vars are processed by the kernel. This is the other
hammer to drop.

Use nv(9) to de-dupe entries within a single `hint` or `env` file, using the
latest value specified for a key. This leaves some duplicates if a variable
is specified in multiple hint/env files or via `envvar` in a kernel config,
but the reversed order of concatenation (from r335653) makes this a
non-issue as the latest-specified version will be seen first.

This change also silently rewrote hint bits to use the same sanitization
process that ian@ wrote for r335642. To the kernel, hints and env vars are
basically the same thing through early boot, then get merged into the
dynamic environment once kmem becomes available and the dynamic environment
is created. They should be subjected to the same restrictions.

MFC after: 1 month

Allow config to be compiled from another source directory, such as one
for building tools. This boils down to replacing ${.CURDIR} with
${SRCDIR}, where the latter is the directory in which this makefile
lives.

Also allow overriding where file2c comes from using ${FILE2C}.

Convert usr.sbin to LIBADD
Reduce overlinking

Add the Clang specific -Wmissing-variable-declarations to WARNS=6.

This compiler flag enforces that that people either mark variables
static or use an external declarations for the variable, similar to how
-Wmissing-prototypes works for functions.

Due to the fact that Yacc/Lex generate code that cannot trivially be
changed to not warn because of this (lots of yy* variables), add a
NO_WMISSING_VARIABLE_DECLARATIONS that can be used to turn off this
specific compiler warning.

Announced on: toolchain@

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

The last big commit: let usr.sbin/ use WARNS=6 by default.

- Import the HEAD csup code which is the basis for the cvsmode work.

Fixed "make checkdpadd" (missing library dependencies).

Approved by: re (kensmith)

Add ${.CURDIR} before kernconf.tmpl in order to let the build see newly
added kernconft.tmpl file.

Approved by: cognet (mentor)

Improve INCLUDE_CONFIG_FILE support.

This change will let us to have full configuration of a running kernel
available in sysctl:

sysctl -b kern.conftxt

The same configuration is also contained within the kernel image. It can be
obtained with:

config -x <kernelfile>

Current functionality lets you to quickly recover kernel configuration, by
simply redirecting output from commands presented above and starting kernel
build procedure. "include" statements are also honored, which means options
and devices from included files are also included.

Please note that comments from configuration files are not preserved by
default. In order to preserve them, you can use -C flag for config(8). This
will bring configuration file and included files literally; however,
redirection to a file no longer works directly.

This commit was followed by discussion, that took place on freebsd-current@.
For more details, look here:

http://lists.freebsd.org/pipermail/freebsd-current/2007-March/069994.html
http://lists.freebsd.org/pipermail/freebsd-current/2007-May/071844.html

Development of this patch took place in Perforce, hierarchy:

//depot/user/wkoszek/wkoszek_kconftxt/

Support from: freebsd-current@ (links above)
Reviewed by: imp@
Approved by: imp@

config.5 was repocopied from share/man/man5/ to usr.sbin/config/.

Repocopied by: peter

Fix a few glitches in my previous commit.
This makes config(8) WARNS?=6 compliant.

Best we can do is WARNS=1 due to lex.

Do not refer to the non-existant BDECFLAGS.

Perform a major cleanup of the usr.sbin Makefiles.
These are not perfectly in agreement with each other style-wise, but they
are orders of orders of magnitude more consistent style-wise than before.

- Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.

Set the default manual section for usr.sbin/ to 8.

${BDECFLAGS} work. And fix a real error in the process. A "MAXUSERS"
string could have been passed to free(); There are some warnings here
I am not sure how to fix as they are in the lex scanner code, etc.

Borrow phk's axe and apply the next stage of config(8)'s evolution.

Use Warner Losh's "hint" driver to decode ascii strings to fill the
resource table at boot time.

config(8) no longer generates an ioconf.c table - ie: the configuration
no longer has to be compiled into the kernel. You can reconfigure your
isa devices with the likes of this at loader(8) time:
set hint.ed.0.port=0x320

userconfig will be rewritten to use this style interface one day and will
move to /boot/userconfig.4th or something like that.

It is still possible to statically compile in a set of hints into a kernel
if you do not wish to use loader(8). See the "hints" directive in GENERIC
as an example.

All device wiring has been moved out of config(8). There is a set of
helper scripts (see i386/conf/gethints.pl, and the same for alpha and pc98)
that extract the 'at isa? port foo irq bar' from the old files and produces
a hints file. If you install this file as /boot/device.hints (and update
/boot/defaults/loader.conf - You can do a build/install in sys/boot) then
loader will load it automatically for you. You can also compile in the
hints directly with: hints "device.hints" as well.

There are a few things that I'm not too happy with yet. Under this scheme,
things like LINT would no longer be useful as "documentation" of settings.
I have renamed this file to 'NOTES' and stored the example hints strings
in it. However... this is not something that config(8) understands, so
there is a script that extracts the build-specific data from the
documentation file (NOTES) to produce a LINT that can be config'ed and
built. A stack of man4 pages will need updating. :-/

Also, since there is no longer a difference between 'device' and
'pseudo-device' I collapsed the two together, and the resulting 'device'
takes a 'number of units' for devices that still have it statically
allocated. eg: 'device fe 4' will compile the fe driver with NFE set
to 4. You can then set hints for 4 units (0 - 3). Also note that
'device fe0' will be interpreted as "zero units of 'fe'" which would be
bad, so there is a config warning for this. This is only needed for
old drivers that still have static limits on numbers of units.
All the statically limited drivers that I could find were marked.

Please exercise EXTREME CAUTION when transitioning!

Moral support by: phk, msmith, dfr, asmodai, imp, and others

Further cleanup. Also remove the following unused or defunct tokens:
and, bio, cam, master, minor, net, priority, sequential, size, slave, trace

$Id$ -> $FreeBSD$

Put on my viking helmet from the closet, and get out the war axe and
"retire" some more stuff.

Further cleanups. i386_ioconf.c and alpha_ioconf.c were essentially the
same and were merged into a single newbus_ioconf.c. CG'd some more unused
code.

Get out the blow torch and hack away all the unused stuff. Note that
I zapped the MACHINE_MIPS stuff, it isn't likely to be useful apart from
recognition of the machine name. It would be reasonable to expect new
ports would look something like the alpha/i386 from a config perspective.

Clean up the -g/DEBUG handling. This logic can go in the Makefile
so that config -g can work the same as: makeoptions DEBUG="-g"

Backed out previous backout. Put y.tab.h back in SRCS.

Backed out previous commit. It was tested, but not for the case where
a separate object tree doesn't exist. Crufty makefiles will have to
put y.tab.h in SRCS so that we know not to create foo.h from foo.y.

Fixed races in `make -jN' using new yacc rules.

Fixed `make -jN' for large N, as usual.

Style police service brought to you by: bde

For safety's sake, explicitly depend all objects on the configvers.h header
to make sure that it's all recompiled even if there is no 'make depend'.
This is overkill, but should be one less thing that someone can do wrong.

Oops, the previous commit shouldn't have touch the Makefile.

Don't say that swapping is configured by config.

Backout yacc changes.

yacc rule changes.

Implement support for conf/options and i386/conf/options.i386
Note that this code is dormant unless the options files exist.
Also, parsing of quoted options in the config files is improved.

What this allows, is all the options in LINT to be specified to be
configured as #defines in a file rather than on the CC command line at
kernel build time. This means that 'make depend' will catch dependencies
on actual *options*, meaning that you can run 'config' and 'make depend'
in complete safety WITHOUT removing the compile directory each time.

Unfortunately, this requires a pass over the source to get the individual
files to #include the new .h files that would be generated by config.
This has a small compile time penalty (appears up to about 2% slower)
from a "fresh" build. Of course, you should not be needing to do complete
rebuilds very often once this was completed, so it would be an overall
win for most people.

Since this code is dormant and we've got a lot of other things happening
on the kernel tree at the moment (prototypes, devfs, static declarations
etc) I am not planning on doing any changes to activate this feature just
yet.

If CONFIG_NO_CLOBBER_EVER is defined (e.g., in /etc/make.conf), don't make
it possible for config to ever blow away a work directory. Default behavior
remains broken.

Fix CLEANFILES. Some temporary files were missing.

Make good on my promise to finally clean up the config clobbering.
If you invoke config with the `-n' flag or have NO_CONFIG_CLOBBER in
your environment, config will behave the same way it used to. This is
now _documented_ as well. Rip out all the CONFIG_DONT_CLOBBER cruft;
some of it wasn't even correct anyway.

Remove ifdef for STATCLOCK. STATCLOCK is standard.

Revert back to old config behavior if compiled with -DCONFIG_DONT_CLOBBER.

Oops...forgot to list the changes....

/usr/src/usr.sbin.config:
o -DSTATCLOCK gives kludges to support the rtc non-device as well as
old kludges to support the clk non-device.

/usr/src/usr.sbin/config.8:
o Document the trivialness of the new vector.h.

/usr/src/usr.sbin/mkglue.c:
o Only print DEVICE_NAMES and NR_DEVICES in vector.h. These are
only required to support vmstat. The vmstat interface will need
to be improved for dynamic loading.

/usr/src/usr.sbin/mkioconf.c:
o Print device ids to be used as indexes into DEVICE_NAMES.
o Print secondary interrupt handler entry points (xxxintr()) instead
of primary ones (VdevU()). Primary ones are now XintrI() and
XfastintrI() and are independent of the config so they are not
handled here.
o Minor cleanups.

Submitted by: Bruce Evans

Support for Bruce Evans' new dynamic interrupt support.

Submitted by: Bruce Evans

Upgrade config to be compatible with our i386 port, pull in 95% of the
changes that have been made in FreeBSD 1.x, except for possibly the nfs
diskless support this is a completed config.

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