(I think config(8) source does bad things to your brain :-)
Clean up likely stray *.h files in the build directory.
Eg: if isa.h ceases being generated, zap it.
The heuristics to figure out a 'likely' file are pretty revolting.
FreeBSD 3.x or so when the 'make depend' picked up the opt_foo.h files.
Convert warnings into actual errors in the hope that buildkernel users
will pay more attention. :-(
as a replacement for the evil #define NFOO. If 'device npx' is in the
static kernel, a synthetic option '#define DEV_NPX 1' will be available
to stick in an opt_xxx.h file. "#if NNPX > 0" can be replaced with
"#ifdef DEV_NPX" and we can get rid of the overloaded meaning of the
device count mechanism.
for your /usr/obj/path/to/my/files path to the kernel, then weird
things happened. make buildkernel would fail because config was
dumping core or generating bad file names (depending on the lenght of
the path).
While I was here, also use strlcpy, strlcat and snprintf (or asprintf)
as necessary. Minor format policing for the snprintf calls as well.
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
config(8). This commit allows control of the creation of the
#include "foo.h" files. We now only create them explicitly when needed.
BTW; these are mostly bad because they usually imply static limits on
numbers of units for devices. eg: struct mysoftc sc[NFOO];
These static limits have Got To Go.
the need to specify the unit number of unwired devices. ie: instead
of saying "device fxp0" we can say "device fxp" which is much closer
to what it actually means. The former (fxp0) implied something about
reserving the 0th unit, but it does not and never did - it was a
figment of config(8)'s imagination that we had to work around..
"device fxp0" simply means "compile in the fxp device driver", so we
may as well just write it as "device fxp" which is closer to what it
really means.
Doing this also saves us from filling up the ioconf.c tables with
meaningless entries.
instead of -2. This (I believe) caused static wirings to not match.
This should fix Bill Pechter's problem but we'll see.
Problem discovered by: Bill Pechter <pechter@shell.monmouth.com>
This would mean that we could move files.alpha, files.i386, files.pc98
etc all next to conf/files, and the various Makefiles next to each
other. This should go a long way towards committers "seeing" the
Alpha etc stuff and remembering to update that too as it would be
right next to the i386 config files. Note this does not include
the GENERIC etc files as they can't be shared. I haven't actually
moved the files, but the support is here for it. It still supports
the per-machine conf directories so that folks working on a new arch
can just distribute a subdir of files.
- redo the "at" configuration system so that it just syntax checks
to make sure the device you're configuring something "at" appears to
exist. Nuke a bunch of complexity that was responsible for creating
"clones" of wildcard devices and some wierd stuff in a few places
including the scbus config tables etc.
- merge "controller" and "device" - there is no difference as far as
the kernel is concernend, it's just something there to make life
difficult for config file writers. "controller" is now an alias for
"device".
- emit full scsi config into the resource tables. We could trivially
change cam to use that rather than it's own "special" table for wiring
and static configuration. ATA could use this too for static wiring.
- try and emulate some of the quirks of the old system where it made
sense. Some were too strange though and I'd be very suprised if they
were features and not outright bugs. nexus handling is still strange.
One thing in particular is that some of the wierd entries in the
newbus devtables is now gone as it was a quirk side effect of the
wildcard/question-mark cloning above.
GENERIC and LINT still build etc.
known option, unknown options following the known option were not
removed. Now I think only unknown options in unknown options files
are not removed. This is harmless because unknown options files should
not be used, but removing the files would be cleaner.
files in a 'files.XXX' file, config allows non-FreeBSD source files
with the same name as a FreeBSD source file to override the latter,
and in this situation it issues a warning.
However, if one of the user-specified files is actually a FreeBSD
source file (perhaps your kernel has some custom option that requires
that file), config mistakenly thinks it's a completely new file
and goes ahead and overrides all previous information for that file
(and issues the warning).
Fix this.
With help from: julian
directory than the default one. If the option is not given, then the
output of config is exactly as before. Only when an alternate output
directory has been specified will config modify its behavior.
Additional changed:
o Remove the now conflicting and unused NODEV define. It
conflicts with NODEV in sys/param.h.
o Rename the now conflicting MACHINE token to ARCH. It
conflicts with MACHINE in sys/param.h.
o Fix some easy style bugs.
o Fix some easy grammar bugs in the manpage.
Approved by: peter, archie
track.
The Id line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;
.\" $Id$
.\"
If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.
Approved by: bde
'makeoptions KERNEL=kernelname'. Warn about any trailing stuff as it's
not handled here. This is a simple bandaid, hopefully to head off some
complaints from certain people.
- make this work: options FOO123=456 *without quotes*
- grumble (but accept) vector xxxintr, and tty/net/bio/cam flags.
- complain if a device is specified twice (eg: 2 x psm0)
- don't require quotes around: port IO_COM2
- recognize negative numbers. (ie: options CAM_DEBUG_UNIT=-1)
- GC some more unused stuff (we don't have composite disks from config(8)).
- various other nits (snprintf paranoia etc)
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.
only worked for configurations with "swap on generic".
usr.sbin/config/config.y:
- ignore all "swap [on] device ...' specifications except for
warning about them. They haven't done anything related to swap
for almost 4 years, and were previously silently ignored,
except for "swap on generic" which stopped swap${KERNEL}.c
from being generated. Code to support swapping is now deader
than before.
usr.sbin/config/mkswapconf.c:
- don't generate a dummy setconf() function in swap${KERNEL}.c.
sys/i386/conf/files.i386:
- swapgeneric.c is now standard. It should be merged into autoconf.c
so that it doesn't conflict with swap${KERNEL}.c for kernels named
"generic".
sys/i386/i386/autoconf.c:
- don't call setroot() for mfs roots. Since setroot() doesn't do anything
harmful, this was just a waste of time, except possibly for booting with
-a it may have helped prevent an undesireable call to setconf() by
finding a bogus rootdev.
- honor -a for ffs roots. -a now overrides all other ways of specifying
the root device. Previously, -r had precedence over -a, and the -a
handling was usually a no-op.
- don't honor -a for non-ffs roots, since it would currently just get in
the way of a clean panic.
sys/i386/i386/swapgeneric.c:
- don't declare things that are now always declared in swap${KERNEL}.c.
Don't decide things that are now decided in autoconf.c. Code to
support the "generic" case is now dead instead of useless.
Requested-by: ache
bde
dg
Modify targets for debug kernels: when -g was specified, make will
now build a debug kernel called kernel.debug, and create a stripped
version called kernel at the same time. The two targets install and
install.debug are otherwise unchanged.
Requested-by: dillon
Update man page accordingly.
2. Config complains if you use -g:
Debugging is enabled by default, there is no ned to specify the -g option
3. Config warns you if you don't use -s:
Building kernel with full debugging symbols. Do
"config -s BSD" for historic partial symbolic support.
To install the debugging kernel, do make install.debug
(BSD was the name of the config file I used; I print out the same
name).
4. Modify Makefile.i386, Makefile.alpha, Makefile.pc98 and config to
work if a kernel name other than 'kernel' is specified. This is
not absolutely necessary, but useful, and it was relatively easy.
I now have a kernel called /crapshit :-)
5. Modify Makefile.i386, Makefile.alpha, Makefile.pc98 "clean" target
to remove both the debug and normal kernel.
6. Modify all to install the stripped kernel by default and the debug
kernel if you enter "make install.debug".
7. Update version number of Makefiles and config.
2. Config complains if you use -g:
Debugging is enabled by default, there is no ned to specify the -g option
3. Config warns you if you don't use -s:
Building kernel with full debugging symbols. Do
"config -s BSD" for historic partial symbolic support.
To install the debugging kernel, do make install.debug
(BSD was the name of the config file I used; I print out the same
name).
4. Modify Makefile.i386, Makefile.alpha, Makefile.pc98 and config to
work if a kernel name other than 'kernel' is specified. This is
not absolutely necessary, but useful, and it was relatively easy.
I now have a kernel called /crapshit :-)
5. Modify Makefile.i386, Makefile.alpha, Makefile.pc98 "clean" target
to remove both the debug and normal kernel.
6. Modify all to install the stripped kernel by default and the debug
kernel if you enter "make install.debug".
7. Update version number of Makefiles and config.
Previously the foolowing lines would have broken:
controller fdc0 at isa? disable port ? bio
controller fdc0 at isa? disable port 0x100 bio
While this would work:
controller fdc0 at isa? disable port "IO_FD1" bio
The first of the three lines is useful for making placeholder devices
for PCMCIA-floppies, and the second is useful for non-standard hardware.
The failure is a "(null)" string in ioconf.c that the compiler pukes on.
Thanks to: Bruce Evans (bde@freebsd.org)
Interrupt handlers are now configured in drivers.
Didn't update config/SMM.doc. It doesn't have any i386 examples (not
even `isa').
Bumped CONFIGVERS. This is not necessary for -current yet, but using
the new config with old system sources gives null pointers for all
vectors.
Didn't bump CONFIGVERS, since ioconf.h was already unused when
CONFIGVERS was last bumped (although essentially the same (CAM)
commit batch that bumped CONFIGVERS also added bogus includes of
ioconf.h).
define MAXUSERS in opt_param.h as directed in /sys/conf/options;
if it's not mentioned there, then define it in IDENT; never define
it in PARAM). MAXUSERS probably should be a completely normal option.
Don't define PARAM now that it is empty.
Cleaned up similar conversion of cpu directives to XXX_CPU options.
was used as if it is 1-based. This happened to give the correct result
for options without values because of a compensating error in newline
lexing. Didn't fix the latter, so line numbers in yyerror() may still
be 1 too high in some cases.
Don't generate declarations for isa interrupt handlers at all.
Isa interrupt handlers are now declared in <i386/isa/isa_device.h>
but should be converted take a `void *' arg and staticized as
soon as possible.
Updated CONFIGVERS. New configs are very incompatible with
previous versions.
candidate for this is "npx0", more are likely to follow.
Check for pseudo-devices that are being configured, but don't appear
in any "files" file. The ``pseudo-device bpf 2'' already hit me too
often.
and the kernel will have a 'config interface version number'. If an
incompatable change is made to the kernel that requires a rebuild of
config(8) (such as the cam devtab stuff), then the version number would be
bumped in both places. If a user neglects to rebuild config, then they
will get a nagging (but non-fatal) warning that they need to rebuild
config.
it's done for pci. This is so that systat and vmstat can get at the
interrupt counts for the Inter-Processor Interrupts when running a smp
kernel. This doesn't affect the normal kernel, but makes life easier for
the smp people who don't have to track two versions of config.
non-standard and not used. "port auto" is equal to "port?" or missing "port"
keyword now. "port none" is really probe routine task (return -1 for
no ports).
- Use MAP_FAILED instead of the constant -1 to indicate
failure (required by POSIX).
- Removed flag arguments of '0' (required by POSIX).
- Fixed code which expected an error return of 0.
- Fixed code which thought any address with the high bit set
was an error.
- Check for failure where no checks were present.
Discussed with: bde
version of strdup() by a macro, killed many calls to strdup(), thus
potentially wasting less malloc'ed space (their args were never be
free()ed desptie despite of being malloc'ed). Probably still a huge
memory leak at all... Also killed two totally useless variables.
I've tested it as i could, but wouldn't be surprised if unexpected
problems showed up. So watch out this space!
conservative part of the tidyup, like fixing potential buffer overflow
conditions. It is believed to be safe to go into 2.2.
Pointed out by: lozenko@cc.acnit.ac.ru (Evgeny A. Lozenko)
the profiling level in config and decide what to do in makefiles.
Makefile.i386:
Align functions to 16-byte boundaries if profiling is enabled. This
will allow a fourfold reduction in the size of the profiling buffers.
is conditionalized by the INCLUDE_CONFIG_FILE option in your kernel config
file and is not turned on by default.
Submitted-By: Bill Pechter <pechter@shell.monmouth.com>
looking at a high resolution clock for each of the following events:
function call, function return, interrupt entry, interrupt exit,
and interesting branches. The differences between the times of
these events are added at appropriate places in a ordinary histogram
(as if very fast statistical profiling sampled the pc at those
places) so that ordinary gprof can be used to analyze the times.
gmon.h:
Histogram counters need to be 4 bytes for microsecond resolutions.
They will need to be larger for the 586 clock.
The comments were vax-centric and wrong even on vaxes. Does anyone
disagree?
gprof4.c:
The standard gprof should support counters of all integral sizes
and the size of the counter should be in the gmon header. This
hack will do until then. (Use gprof4 -u to examine the results
of non-statistical profiling.)
config/*:
Non-statistical profiling is configured with `config -pp'.
`config -p' still gives ordinary profiling.
kgmon/*:
Non-statistical profiling is enabled with `kgmon -B'. `kgmon -b'
still enables ordinary profiling (and distables non-statistical
profiling) if non-statistical profiling is configured.
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.
Generate prototypes for SCSI functions and function pointers.
Fix redundant declarations of interrupt handlers.
Generate 4.4-style includes (<> instead of "").
Clean up formatting of both the source and the output a bit.
This is performed by using a line similar to:
controller scbus0 at ahc0 bus 1
to wire scbus0 to the second bus on an adaptec 2742T controller.
Reviewed by: Peter Dufault(dufault@hda.com), Rod Grimes(rgrimes@FreeBSD.org)
device table layout...basically, don't output the cruft anymore - it
is now dynamic.
Reviewed by: John Dyson and David Greenman
Submitted by: Poul-Henning Kamp
it really should have been printing all this time. Also fix my rather
bogus handling of the id_conflicts value by moving it to the end of
isa_device and dealing with that correctly now.
others. The flag can be put in descriptive locations, e.g.:
device sb0 at isa? port 0x220 irq 7 conflicts drq 1 vector sbintr
or
device psm0 at isa? port "IO_KBD" conflicts tty irq 12 vector psmintr
But is nonetheless boolean only. You can't turn conflict checking off for
only a given type of conflict. I didn't deem it worth the trouble at this
stage, and it's far better than the ALLOW_CONFLICT_* that preceeded it.
may not be desired if you're just going to blow the kernel away again later)
and substitute one that tells the user where the new kernel build
directory actually IS, which can at least be argued to be useful information
in all cases.
Reviewed by: davidg
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.
just thinking about it.
Two changes need to be made to allow 'config kernel swap generic' to
work properly without requiring any compile-time flags:
/usr/src/usr.sbin/config/mkswapconf.c: we need to define a dummy stub
for the setconf() function to replace the one in swapgeneric.c that
isn't available in non-generic configurations.
/usr/src/sys/i386/i386/autoconf.c: the -a boot flag causes setroot()
to be skipped and lets setconf() prompt the user for a root device.
If you skip setroot() in a non-generic kernel, you could get severely
hosed. To avoid this, we silently ignore the -a flag if rootdev != NODEV.
(rootdev is always initialized to NODEV in swapgeneric.c, so if
we find that rootdev is something other than NODEV, we know we're
not using a generic configuration.)
Support slice numbers in device names. The syntax is `<driver name>
[<unit number>] ['s' <slice number>] [<partition letter>]'. Only
`['s' <slice number>]' is new here. The slice number defaults to 0
so that there is no change in the output from config if this new
feature is not used.
Replace some magic disk numbers by `dk' slice and label macros.
mkswapconf.c:
Improve the output formatting:
Generate <> style includes.
Print minor numbers in hex so that slice numbers are easy to see and edit.
Print the rootdev and dumpdev names in comments like the swapdev names.
for ioconf.c with the current and suppress the generation if they are
equal. This now prevents all the warnings from the c-compiler about
sio or snd or two adaptecs. This works only if the sio lines are grouped
together in the config files, but it is better than nothing.
/*
* filename [ standard | optional ] [ config-dependent ]
* [ dev* | profiling-routine ] [ device-driver] [ no-obj ]
* [ compile-with "compile rule" [no-implicit-rule] ]
* [ dependancy "dependancy-list"]
*/
I added
no-obj - This entry does not create anything linkable to the kernel.
dependancy - Add additional dependancy rules to a target.
no-implicit-rule - Don't assume .c -> .o type rules. Config is really
dumb in this area and assumes that everything is a .c file
irregarless of extention. This was the best choice really
since there may even be .c file that you don't want to follow
the standard rules.
This was all done so that the building to the aic7770 assembler and using
the aic7770 assembler in the building of the aic7770 driver could be config
dependant. I can now have an entry like this for the driver:
aic7770 optional ahc device-driver \
compile-with "${CC} $> -o $@" \
dependancy "$S/gnu/misc/aic7770/aic7770.c" \
no-obj no-implicit-rule
aic7770_seq.h optional ahc device-driver \
compile-with "${.CURDIR}/aic7770 -o $@ $S/gnu/misc/aic7770/aic7770.seq"\
dependancy "$S/gnu/misc/aic7770/aic7770.seq aic7770" \
no-obj no-implicit-rule
i386/isa/aic7770.c optional ahc device-driver \
dependancy "aic7770_seq.h"
I also added '\' escaping to newlines so that this doesn't look as gross as
it could have.
Reviewed by: jkh
Also initialize some fields that were never initialized before, and
simply defaulted to 0. I've never looked at this code before, now
I know why. Config needs to die. Horribly.
conditional did it backwards, thus flipping the behavior back off
again by default (and only re-enableable through a very counter-intuitive
option setting!). I'm glad I caught this and would merely like to state
again for the record that if you're going to go and modify my changes then
you should at least:
1. Do it correctly, since to do otherwise is kind of a slap in the
face.
2. TELL me.
This is not me just being compulsive, this is simple courtesy.
I'm speaking just of my own preferences here, not necessarily trying
to impose my standards on the group at large (e.g. some other folks might
not even care).
Submitted by: jkh
and recreate any previous ../../compile/<blah> directory before laying
down new files. The depends just aren't smart enough to save
us from the grief that config's old behavior has always caused.
Submitted by: jkh
/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
