Commit Graph

261 Commits

Author SHA1 Message Date
Marcel Moolenaar
7621bfff0f Allow the source root `S' to be overridden by defining it only when
it isn't already defined. It enables config(8) to create the kernel
build directory where it wants.
1999-10-30 09:28:27 +00:00
Bruce Evans
503e666658 Fixed "misspelling" of bcmp as memcmp. memcmp doesn't exist in the
kernel, but gcc provides a pessimal builtin for it.

Makefile.i386:
Added a variable (CONF_CFLAGS) for configuration-specific compiler flags.

LINT:
Use CONF_CFLAGS to inhibit use of gcc builtins.
1999-10-03 07:09:31 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Peter Wemm
6c205e59db Delete the 'device-driver' suffix. It's been meaningless for a long time.
On the VAX, it used to be used for special compilation to avoid the
optimizer which would mess with memory mapped devices etc.  These days
we use 'volatile'.
1999-07-03 19:19:34 +00:00
Jordan K. Hubbard
93740fb962 Working kernel tags!
Submitted by:	Craig Leres <leres@ee.lbl.gov>
PR:		2806
1999-07-02 04:00:01 +00:00
Peter Wemm
320138da4c Use the same -UKERNEL strategy as the alpha to avoid the inlines etc. 1999-06-28 09:21:41 +00:00
Poul-Henning Kamp
46d2febf9d Hmm, might as well make all of BEFORE_DEPEND first in case make depend
wasn't run.
1999-06-28 07:19:51 +00:00
Poul-Henning Kamp
d86578de9d Also make pci_if.h early if make depend wasn't run. 1999-06-28 07:10:55 +00:00
Poul-Henning Kamp
85a96bc645 Make bus_if.h and device_if.h as early as possible if make depend hasn't
been run.
1999-06-28 07:06:21 +00:00
Peter Wemm
a127a70452 Move KERNEL?=kernel to top of the file where it's more obvious and add
a pointer to 'makeoptions' and /etc/make.conf.
Catch a few stray "kernel" hardcoded references.
Move the kernel.debug and related kernel build rules together.
1999-05-09 22:42:17 +00:00
Peter Wemm
37558b0171 Move a couple of bits of (now) static content from config(8) (ie: %LOAD)
directly into the Makefile.  Remove references to swapkernel.c, it's
not generated by config(8) now.  (The previous config commits had
generated it, but they had an unused 'char *' in them).
1999-05-09 18:57:02 +00:00
Poul-Henning Kamp
b307e58fc7 Major lobotomy of config(8). The
config kernel mumble mumble

line has been obsoleted and removed and with it went all knowledge of
devices on the part of config.

You can still configure a root device (which is used if you give
the "-r" flag) but now with an option:

        options         ROOTDEVNAME=\"da0s2e\"

The string is parsed by the same code as at the "boot -a" prompt.

At the same time, make the "boot -a" prompt both more able and more
informative.

ALPHA/PC98 people:  You will have to adapt a few simple changes
(defining rootdev and dumpdev somewhere else) before config works
for you again, sorry, but it's all in the name of progress.
1999-05-09 16:46:01 +00:00
Peter Wemm
6d04a6cb97 I'm sick of the automatic rename of /kernel to /kernel.old while doing
development that leads to lots of crashes during boot.

I have made a 'reinstall' target (like in ports, and reinstall.debug)
This is most useful if you want to keep /kernel.old as a known bootable
kernel.  If you test a new kernel and have to reboot for a fix, a
'make reinstall' will install the new kernel over the top of the old
non-viable one, leaving the old one untouched.  This is mainly meant
for development, not general users.
1999-05-08 20:04:39 +00:00
Peter Wemm
061eb3abb3 Bump configvers; when the updates to generic/lint get committed, the old
config has severe indigestion.
1999-04-24 21:38:50 +00:00
Peter Wemm
db42d90829 unifdef -DVM_STACK - it's been on for a while for x86 and was checked
and appeared to be working for the Alpha some time ago.
1999-04-19 14:14:14 +00:00
Peter Wemm
6182fdbda8 Bring the 'new-bus' to the i386. This extensively changes the way the
i386 platform boots, it is no longer ISA-centric, and is fully dynamic.
Most old drivers compile and run without modification via 'compatability
shims' to enable a smoother transition.  eisa, isapnp and pccard* are
not yet using the new resource manager.  Once fully converted, all drivers
will be loadable, including PCI and ISA.

(Some other changes appear to have snuck in, including a port of Soren's
 ATA driver to the Alpha.  Soren, back this out if you need to.)

This is a checkpoint of work-in-progress, but is quite functional.

The bulk of the work was done over the last few years by Doug Rabson and
Garrett Wollman.

Approved by:	core
1999-04-16 21:22:55 +00:00
Bruce Evans
e05da2e941 Made booting with -a work for all configurations. Previously it
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.
1999-04-15 14:52:24 +00:00
Peter Wemm
4e8691dc95 Clean up the kernel/kernel.debug/install.debug etc stuff.
Sense ${DEBUG} to decide on building kernel.debug or not.
Use a common install and install.debug target to minimize duplication.
(I deleted the ELF transition kernel warning, it was getting dated..)
1999-04-13 18:25:08 +00:00
Greg Lehey
4357ca882d Back out default debug kernel. The flags revert to historical behaviour.
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.
1999-04-11 03:40:11 +00:00
Greg Lehey
2005b07aa8 1. Modify config to issue different code for debugging.
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.
1999-04-07 09:28:03 +00:00
David Greenman
8681b974c1 Increased kernel virtual address space to 1GB. NOTE: You MUST have fixed
bootblocks in order to boot the kernel after this! Also note that this
change breaks BSDI BSD/OS compatibility.
Also increased default NKPT to 17 so that FreeBSD can boot on machines
with >=2GB of RAM. Booting on machines with exactly 4GB requires other
patches, not included.
1999-03-11 18:28:46 +00:00
Dmitrij Tejblum
bb4b3fa51e Ensure that vnode_if.h build before object files, if make depend has not
been run.
1999-03-01 09:54:51 +00:00
Dag-Erling Smørgrav
ad5ebf3fba Ignore errors from chflags. This makes it possible to make installworld
with DESTDIR set to an NFS-mounted file system.
1999-02-14 13:56:15 +00:00
Julian Elischer
2907af2a96 Mostly remove the VM_STACK OPTION.
This changes the definitions of a few items so that structures are the
same whether or not the option itself is enabled. This allows
people to enable and disable the option without recompilng the world.

As the author says:

|I ran into a problem pulling out the VM_STACK option.  I was aware of this
|when I first did the work, but then forgot about it.  The VM_STACK stuff
|has some code changes in the i386 branch.  There need to be corresponding
|changes in the alpha branch before it can come out completely.

what is done:
|
|1) Pull the VM_STACK option out of the header files it appears in.  This
|really shouldn't affect anything that executes with or without the rest
|of the VM_STACK patches.  The vm_map_entry will then always have one
|extra element (avail_ssize).  It just won't be used if the VM_STACK
|option is not turned on.
|
|I've also pulled the option out of vm_map.c.  This shouldn't harm anything,
|since the routines that are enabled as a result are not called unless
|the VM_STACK option is enabled elsewhere.
|
|2) Add what appears to be appropriate code the the alpha branch, still
|protected behind the VM_STACK switch.  I don't have an alpha machine,
|so we would need to get some testers with alpha machines to try it out.
|
|Once there is some testing, we can consider making the change permanent
|for both i386 and alpha.
|
[..]
|
|Once the alpha code is adequately tested, we can pull VM_STACK out
|everywhere.
|

Submitted by:	"Richard Seaman, Jr." <dick@tar.com>
1999-01-26 02:49:52 +00:00
Peter Wemm
43482c407d Force the order of the setdefs* so that make -jN doesn't build the
setdefs* multiple times at the same time that it's compiling setdefs[0].c.
I think this was leading to unterminated linker sets etc.
1999-01-25 04:08:28 +00:00
Peter Wemm
dcddc353f7 Hide the gensetdefs run the same way we hide the final ld command. 1999-01-19 17:08:28 +00:00
Peter Wemm
f7dd86c147 Use the gensetdefs that is now in /usr/bin, it's a superset of the
one in the kernel source, and that one is already used for modules.

I don't _think_ this will hurt releases, aout-to-elf, etc, but it is
possible.  In all the cases I've looked at, config(8) has been
generated straight after a make world, so if /usr/sbin/config exists and
is the right version for the kernel, then we can pretty much count on
/usr/bin/gensetdefs being there too.
1999-01-17 21:17:27 +00:00
John Polstra
f92bdbd010 Switch to using ".So" as the extension for PIC object files rather
than ".so".  The old extension conflicted with well-established
naming conventions for dynamically loadable modules.

The "clean" targets continue to remove ".so" files too, to deal with
old systems.
1999-01-09 21:51:00 +00:00
Peter Wemm
c30fe42c78 Flip the kernel default to ELF.. Add a test to try and warn people
that they might be about to blow their feet off if they have not been
reading their mail.  I don't know if or how well this will work, but it's
worth a try.
1999-01-07 06:52:41 +00:00
Mike Smith
3d89c2cdb2 Regrettably, you can't take setdef0.c out of order, or, surprise,
linker sets don't work and thus neither does the kernel.

This should stop being a problem with an improved linker set mechanism in
the pipeline (see the bootloader) but for now this has to stay like this.
1998-12-21 10:29:09 +00:00
Bruce Evans
3d2ffe2196 Fixed building elf kernels without a `make depend' step. The magic
ordering in rev.1.38 was broken by putting setdef0.o before vnode_if.o
in SYSTEM_OBJS.
1998-12-20 16:25:21 +00:00
Warner Losh
f7c9e34bea If there is no .depends file, use the standard ad-hoc way of ensuring
that the generated files are generated before any of the object files.
Also minor cleanup of dependencies in conf/files that I bogusly added
before.

This should fix the requirement that make depend be done starting from
a clean config directory.  If you don't have a clean directory, make
depend is still required if you want the proper .o's to be recompiled.

Reviewed by: bde
1998-12-07 22:36:54 +00:00
Doug Rabson
2f2dcad41b * Change 'struct resource' to 'struct config_resource'.
* Bump config version.
1998-11-15 18:07:35 +00:00
Peter Wemm
3187d896a1 Make a.out kernels kld compatable by default... 1998-11-04 15:27:41 +00:00
Bruce Evans
4af4007dbb Ignore `vector xxxintr' specifications except for checking their syntax.
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.
1998-10-23 17:05:06 +00:00
Peter Wemm
b24d73e14b rm *.so and *.ko in clean as well. 1998-10-10 01:00:56 +00:00
Peter Wemm
6b7a14ce57 Make the ELF kernel build produce a dynamic executable (!). This enables
the in-kernel linker to access the _DYNAMIC data for doing loadable elf
modules.  The alpha kernel is already done this way, I've borrowed some of
the hacks from there.

This is primarily aimed at the 3-stage boot process which is intended to
be able to do pre-loading of kernel modules.

Note that the entry point isn't 0xf0100000 any more, it'll be a little
further on - but this value is stored in the headers.  I don't think this
will be a problem, but I'm sure somebody will tell me if it is. :-)

I'm not sure if btxboot is going to like this, it doesn't do proper ELF
header checking and assumes that there are exactly two program header
entries and that they are both PT_LOAD entries - a bad assumption.
1998-09-30 12:14:39 +00:00
Bruce Evans
5b036e2b3c Fixed missing dependencies of genassym.o, gensetdefs.o and vers.o
on opt_global.h.  This actually matters for genassym.o (it depends
on at least SMP).

Don't undefine KERNEL for compiling genassym.c.  genassym.o really
depends on KERNEL, and the prototype mismatches that required
undefining KERNEL in rev.1.49 no longer exist.

Compile gensetdefs* with the same flags as genassym*.  External
`gen' programs such linux_genassym should also use these flags
(${GEN_CFLAGS}).

Fixed missing dependency generation for gensetdefs.o.  C sources
for external `gen' programs should be added to GEN_CFILES to get
their dependencies generated.

Cleaned up flags definitions and use.  All of ${CFLAGS} is now
passed to mkdep and the assembler (both are actually variants of
${CC} and will ignore the irrelevant flags).
1998-09-21 06:39:11 +00:00
Justin T. Gibbs
79dadba22a Bump config version. 1998-09-15 21:07:07 +00:00
Jordan K. Hubbard
ac80870e0b Decouple genassym flags from CFLAGS.
Submitted by:	jhay
1998-09-14 11:32:17 +00:00
Nicolas Souchu
8afa373cc6 Reviewed by: Doug Rabson
Submitted by:	nsouch
Adding I2C and SMB entries to LINT, CONFIGVERS modified in Makefile.i386
1998-09-03 20:58:34 +00:00
John Birrell
c155091cc8 Change BINFORMAT to KERNFORMAT and add -aout or -elf to the tool
arguments as appropriate. This is necessary because setting OBJFORMAT=aout
in the makefile doesn't get exported to the environment. I wish our
make could do that!
1998-09-01 00:11:02 +00:00
John Birrell
0cdd2a270f Force OBJFORMAT=aout. 1998-08-31 11:43:26 +00:00
Bruce Evans
9478de47f4 Use a relative path to bsd.kern.mk if the relative mk directory exists. 1998-08-24 06:42:26 +00:00
Bruce Evans
a872b9bdd0 Removed historical dependencies on `Makefile'. They had rotted to being
mostly for objects that have the fewest dependencies on `Makefile'
(since they were mostly for utilities and objects generated from *.s
and these don't depend on profiling flags).

Give an explicit rule for building vnode_if.o.  This fixes building
it without ${PROF}.

Use .ORDER instead of a stamp file to avoid building vnode_if.[ch]
concurrently.

Removed explicit dependencies that will be generated by `make' (.c.o)
or will be generated by mkdep.

Added missing dependencies of special objects on opt_global.h.

Use ${NORMAL_C} instead of special rules for special objects where
possible.

FIxed dependencies of vers.o.
1998-07-12 10:47:32 +00:00
Bruce Evans
784c3c3465 Removed all traces of PARAM in Makefile.i386. Incremented CONFIGVERS
to reflect the dependency of Makefile.i386 on nothing being put in
PARAM.

Config versioning is too closely coupled with the Makefile.i386.
1998-07-12 09:52:45 +00:00
Eivind Eklund
1fcddf2eea Fix race condition for creation of vnode_if.c and vnode_if.h.
Exact problem pointed out by: Cyrus Rahman <cr@jcmax.com>
1998-06-24 13:55:32 +00:00
Bruce Evans
afafca8bcb Don't generate declarations for isa device structs in "ioconf.h".
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.
1998-06-17 15:16:53 +00:00
Eivind Eklund
3933c622cd Move __FreeBSD_version from src/sys/conf/newvers.sh to
src/sys/sys/param.h, to facilitate access from the kernel.  This make
it possible to do outside kernel development and have it actually work
properly.
1998-05-21 19:21:46 +00:00
Eivind Eklund
94610ec47e Back out previous commit - it breaks when called from 'buildworld' :-(
(Damn, I wanted that in the -snap).
1998-05-20 20:54:10 +00:00
Eivind Eklund
a5eed7b873 Move __FreeBSD_version into <sys/param.h> (with automated duplication
to <osreldate.h>).  This allow kernel drivers access to it.

Approved by:	-current
1998-05-20 20:35:42 +00:00
Warner Losh
3f6c4fc33b Use ${.TARGET} rather than $@. i386 tested, pc98 untested because config
on my box doesn't grok machine type pc98.
PR:		3272
Submitted by:	jhs
1998-04-29 18:21:35 +00:00
Dima Ruban
8b78465c27 Undo my last change. 1998-04-17 07:51:36 +00:00
Dima Ruban
d3b8e3673e Use 0440 root.kmem kermissions on kernel instead of
0555 root.wheel.

Reviewed by:	freebsd-security
1998-04-15 17:53:32 +00:00
Eivind Eklund
c6b60f62de Add support for cleandepend, ${DESTDIR}, and there not being a file named
${DESTDIR}/kernel.
1998-01-31 04:23:15 +00:00
Bruce Evans
8cd077a7fd Augment $PATH to ensure searching of /sbin and /usr/sbin for sysctl
instead of using an absolute path to sysctl.
Problem reported by: ache
1997-12-18 21:03:04 +00:00
Mike Smith
41631559ba Bump configvers to 300003 to account for the crd->card (and related)
namespace changes.
1997-11-06 03:11:40 +00:00
Guido van Rooij
03486e0a41 Test if kvm_kernel.db exists before moving it. Otherwise installing
a kernel, booting single user and reinstalling a kernel fails.
1997-11-03 21:48:31 +00:00
Peter Wemm
48b29459ed Put in an initial %VERSREQ field. This will cause existing config(8)'s
to give a non-fatal warning about unknown directives, so there is no
hurry to rebuild config(8) yet, apart from shutting up the warning.
1997-10-22 00:48:36 +00:00
Peter Wemm
98823b2366 Convert the VM86 option from a global option to an option only depended
on by the files that use it.  Changing the VM86 option now only causes
a recompile of a dozen files or so rather than the entire kernel.
1997-10-10 09:44:12 +00:00
Poul-Henning Kamp
38d8a113a9 Add option for compiling in a 8x16 font. 1997-07-25 11:53:30 +00:00
Bruce Evans
1013a13daf Fixed the fix for not using -fomit-frame-pointer with -pg. The previous
fix stopped it being used in all cases, because substitution on unset
variables does not work.

When profiling, put -malign-functions=4 in CFLAGS instead of in PROF.
This fixes the histogram counts for profiling support functions.  It
gives bogus but harmless extra alignment for genassym etc.
1997-06-29 16:39:11 +00:00
Peter Wemm
d8897edc0e Revert previous change, use "compile-with" in files.i386 instead. 1997-05-31 17:59:56 +00:00
Peter Wemm
752bbf7aa8 compile ipl_funcs.c with -fomit-frame-pointer, as suggested by Bruce. This
cuts the cost of a function call instead of an inline.
1997-05-31 09:19:19 +00:00
John Polstra
61b005296f This commit affects ELF kernels only.
Remove "setdefs.h" and arrange to generate it automatically at
ELF kernel build time.

"gensetdefs.c" is a utility which scans a set of ELF object files
and outputs a line ``DEFINE_SET(name, length);'' for each linker
set that it finds.  When generating an ELF kernel, this is run just
before the final link to generate "setdefs.h".

Remove the init_sets() function from "setdef0.c", and its call from
"machdep.c".  Since "gensetdefs.c" calculates the length of each
set, it is no longer necessary in an ELF kernel to count the set
elements at kernel initialization time.  Also remove "set_of_sets"
which was used for this purpose.

Link "setdef0" and "setdef1" into the kernel only if building for
ELF.  Since init_sets() is no longer used, there is no need to link
them into an a.out kernel.
1997-05-21 23:21:30 +00:00
Doug Rabson
cea6c86c11 This is the kernel linker. To use it, you will first need to apply
the patches in freefall:/home/dfr/ld.diffs to your ld sources and set
BINFORMAT to aoutkld when linking the kernel.

Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
Peter Wemm
d061973c76 Create a special option file "opt_global.h" which is included by all
source files via a 'cc -include opt_global.h ...' type arrangement.
This means we can untangle certain header files.

options.i386 has a placeholder until it has a real member so we can avoid
having to teach config about it just yet.

Reviewed by: bde
1997-04-27 20:01:47 +00:00
John Polstra
9081eec1fb Make the necessary changes so that an ELF kernel can be built. I
have successfully built, booted, and run a number of different ELF
kernel configurations, including GENERIC.  LINT also builds and
links cleanly, though I have not tried to boot it.

The impact on developers is virtually nil, except for two things.
All linker sets that might possibly be present in the kernel must be
listed in "sys/i386/i386/setdefs.h".  And all C symbols that are
also referenced from assembly language code must be listed in
"sys/i386/include/asnames.h".  It so happens that failure to do
these things will have no impact on the a.out kernel.  But it will
break the build of the ELF kernel.

The ELF bootloader works, but it is not ready to commit quite yet.
1997-04-22 06:55:47 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Bruce Evans
c08d58eade Moved nonstandard compiler profiling options out of config. Just print
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.
1996-12-13 12:46:28 +00:00
Bruce Evans
f5227a832c Compile genassym without -static (undo rev.1.20). The default can be
depended on now, and linux_genassym has depended on it for a long time.
1996-11-06 14:56:11 +00:00
Bruce Evans
9e72552ff0 Centralized the definition of CWARNFLAGS into bsd.kern.mk. 1996-10-08 22:09:03 +00:00
Bruce Evans
e2e0d560a2 Added -I- to ${INCLUDES}. This makes 4.4Lite's (mis?)use of "foo.h"
for headers in the compile directory work unsurprisingly.  Without
-I-, the search for "foo.h" begins in the directory of the file
that includes it, and the compile directory is only searched because
`-I.' is in ${INCLUDES}.

Removed -I$S/sys from ${INCLUDES}.  It was once necessary to find
things like "param.h" in $S/sys.  Now <sys/param.h> is found in $S.
1996-09-27 16:34:16 +00:00
Bruce Evans
09a8dfa260 Don't depend in the kernel on the gcc feature of doing arithmetic on
pointers of type `void *'.  Warn about this in future.
1996-08-31 14:48:13 +00:00
Andrey A. Chernov
d17e5f0b6f Add /usr/sbin to sysctl because /usr/sbin not in standard path 1996-08-21 16:31:34 +00:00
Gary Palmer
a01e62f093 Add -Wunused to try and catch any future offenders
Reviewed by:	bde
1996-06-12 05:54:46 +00:00
Jordan K. Hubbard
43b74d6191 Bring back the `config file in the kernel' feature from the 1.x days. This
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>
1996-06-08 23:27:16 +00:00
Peter Wemm
fd54183bb9 Instead of: cpp blah file.s | as -o file.o, use instead:
cc -c -x assembler-with-cpp -o file.o file.s.

This means that any cpp fatal errors will now be detected, as well as
running *.s files through an ansi cpp instead of a traditional cpp.

(fixes to allow *.s to compile under both ansi and traditional to follow)
1996-05-31 01:01:24 +00:00
Wolfram Schneider
9fb933075e `mv'' -> `mv -f''
``rm'' -> ``rm -f''
so mv/rm may not ask for confirmation if you are not root
1996-05-07 23:19:49 +00:00
Joerg Wunsch
1c393ef6fb Replace the dependency of install' from kernel' by a test for the
existance fo `kernel'.

Submitted by:	peter
1996-05-02 21:40:50 +00:00
Poul-Henning Kamp
e911eafcba removed:
CLBYTES PD_SHIFT PGSHIFT NBPG PGOFSET CLSIZELOG2 CLSIZE pdei()
        ptei() kvtopte() ptetov() ispt() ptetoav() &c &c
new:
        NPDEPG

Major macro cleanup.
1996-05-02 14:21:14 +00:00
Joerg Wunsch
d5d7648201 Make install' depend on kernel'. Some idiot tried to install a
non-built kernel and complained in Usenet... :-)
1996-04-27 07:30:49 +00:00
Peter Wemm
6386a7e079 When doing a 'make depend', dont blow away the existing .depend until
the generation of a new one is complete.
1996-03-30 14:57:02 +00:00
Bruce Evans
1d4bbd7d60 Added necessary quotes (${CPP} might have spaces in it). Removed
unnecessary quotes.
1996-03-29 14:08:30 +00:00
Peter Wemm
d66a506616 Mega-commit for Linux emulator update.. This has been stress tested under
netscape-2.0 for Linux running all the Java stuff.  The scrollbars are now
working, at least on my machine. (whew! :-)

I'm uncomfortable with the size of this commit, but it's too
inter-dependant to easily seperate out.

The main changes:

COMPAT_LINUX is *GONE*.  Most of the code has been moved out of the i386
machine dependent section into the linux emulator itself.  The int 0x80
syscall code was almost identical to the lcall 7,0 code and a minor tweak
allows them to both be used with the same C code.  All kernels can now
just modload the lkm and it'll DTRT without having to rebuild the kernel
first.  Like IBCS2, you can statically compile it in with "options LINUX".

A pile of new syscalls implemented, including getdents(), llseek(),
readv(), writev(), msync(), personality().  The Linux-ELF libraries want
to use some of these.

linux_select() now obeys Linux semantics, ie: returns the time remaining
of the timeout value rather than leaving it the original value.

Quite a few bugs removed, including incorrect arguments being used in
syscalls..  eg:  mixups between passing the sigset as an int, vs passing
it as a pointer and doing a copyin(), missing return values, unhandled
cases, SIOC* ioctls, etc.

The build for the code has changed.  i386/conf/files now knows how
to build linux_genassym and generate linux_assym.h on the fly.

Supporting changes elsewhere in the kernel:

The user-mode signal trampoline has moved from the U area to immediately
below the top of the stack (below PS_STRINGS).  This allows the different
binary emulations to have their own signal trampoline code (which gets rid
of the hardwired syscall 103 (sigreturn on BSD, syslog on Linux)) and so
that the emulator can provide the exact "struct sigcontext *" argument to
the program's signal handlers.

The sigstack's "ss_flags" now uses SS_DISABLE and SS_ONSTACK flags, which
have the same values as the re-used SA_DISABLE and SA_ONSTACK which are
intended for sigaction only.  This enables the support of a SA_RESETHAND
flag to sigaction to implement the gross SYSV and Linux SA_ONESHOT signal
semantics where the signal handler is reset when it's triggered.

makesyscalls.sh no longer appends the struct sysentvec on the end of the
generated init_sysent.c code.  It's a lot saner to have it in a seperate
file rather than trying to update the structure inside the awk script. :-)

At exec time, the dozen bytes or so of signal trampoline code are copied
to the top of the user's stack, rather than obtaining the trampoline code
the old way by getting a clone of the parent's user area.  This allows
Linux and native binaries to freely exec each other without getting
trampolines mixed up.
1996-03-02 19:38:20 +00:00
Peter Wemm
0f7183ad60 Also move /var/db/kvm_kernel.db to /var/db/kvm_kernel.old.db IF we change
sysctl kern.bootfile - since libkvm expects it there.
1996-01-08 03:55:36 +00:00
Poul-Henning Kamp
3b3f55c76f Only change the sysctl variable if it presently points to /kernel. 1996-01-07 22:31:27 +00:00
Garrett Wollman
b6794438ad Delete a couple of unnecessary dependencies on Makefile. 1996-01-05 18:30:10 +00:00
Bruce Evans
62394a63c8 Removed almost all traces of libkern.a. The objects that were in
libkern.a are now specified by listing their source files in
files.${MACHINE}.  The list is machine-dependent to save space.
All the necessary object for each machine must be linked into the
kernel in case an lkm wants one.
1995-12-26 13:58:31 +00:00
Bruce Evans
a5db65d39f Added `-Wstrict-prototypes -Wmissing-prototypes' to CWARNFLAGS so that
prototypes don't go missing again.  Also added -Winline so that some
doubtful (non-)inlines get fixed.

bsd.kmod.mk:
Also added `-Wreturn-type -Wimplicit -Wnested-externs' to catch up
with the kernel.
1995-12-16 01:57:25 +00:00
David Greenman
82faa9875a i386 is defined by the compiler, so don't define it here. LOAD_ADDRESS
is only used in the Makefile, so don't define it in CFLAGS.
1995-11-19 19:49:43 +00:00
Peter Wemm
30a4b938d0 Add a DRIVER_S= definition that config wants to use for assembler
source.  This was copied from NORMAL_S..
1995-11-01 15:03:02 +00:00
Guido van Rooij
026d3dc8e3 When moving kernel to kernel.old, also change kern.bootfile.to
kernel.old. This is a solution for only the first install
on a running system, but it's better than it is now.
1995-10-30 20:20:49 +00:00
David Greenman
c91d636e6f Use the new config(8) %SFILES token to auto-generate the SFILES list.
Note: THIS REQUIRES THAT YOU REBUILD CONFIG(8)!!!
1995-10-29 11:10:53 +00:00
Bruce Evans
8c13738f38 Make everything except the unsupported network sources compile cleanly
with -Wnested-extern.
1995-08-16 16:11:48 +00:00
Bruce Evans
5542b158d8 Fix clean rule to remove remove everything that isn't created by config
except .depend and `version'.
1995-07-22 23:55:41 +00:00
Rodney W. Grimes
9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
Garrett Wollman
1d86aba60b Make `make links' work by leaving swapkernel.c off out of the links processing
(it is never generic).
1995-05-11 19:48:45 +00:00
Nate Williams
070e3ec139 Modify behavior of INCLUDES to never look in /usr/include unless we
can't find the src/include directory.

Reviewed by:	"Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com>
Submitted by:	Mike Pritchard <pritc003@maroon.tc.umn.edu>
1995-04-05 04:10:58 +00:00
Nate Williams
146e71662f Added -I/usrinclude to the tail end of the INCLUDES line. This hack
will cause kernel compiles to work even if the src/includes directory
doesn't exist but still do the 'Right Thing' and pull files from the
source tree if it does exist.

Reviewed by:	Bruce Evans
1995-04-03 01:13:50 +00:00
Bruce Evans
ce7c8b00ff CVS:
Enable -Wimplicit again.
bash: /src/z1: No such file or directory
1995-03-28 08:02:37 +00:00
Bruce Evans
8e4150e95a Reviewed by:
Submitted by:
Obtained from:

Disable previous change.  I missed a lot of implicit declarations.
1995-03-25 23:21:36 +00:00
Bruce Evans
feae7fb7d3 Add -Wimplicit to ${CWARNFLAGS} so that implicitly declared functions
don't come back.  There are still a few for unsupported network protocols.
1995-03-25 17:50:19 +00:00
David Greenman
403ef252fa Removed obsolete vtrace() remnants. 1995-03-04 03:24:45 +00:00
Justin T. Gibbs
0bf316f5ac Fix "dependency" spelling error. Implement "clean" entries for device
config entries.  Add clean rules to aic7xxx and aic7xxx_seq.h.

Submitted by: Pointed out by Bruce Evans <bde@zeta.org.au>
1995-03-01 10:08:07 +00:00
Bruce Evans
c5489d9047 Use relative include path and -nostdinc avoid getting anything from
/usr/include.
1995-02-26 05:05:53 +00:00
Poul-Henning Kamp
50bd4cabd3 Pass '-m' to symorder. Kernels without INET will fail otherwise. 1995-01-29 23:42:11 +00:00
Bruce Evans
b5d89ca8ad Load the kernel symbol table in the boot loader and not at compile time.
(Boot with the -D flag if you want symbols.)

Make it easier to extend `struct bootinfo' without losing either forwards
or backwards compatibility.

ddb_aout.c:
Get the symbol table from wherever the loader put it.
Nuke db_symtab[SYMTAB_SPACE].

boot.c:
Enable loading of symbols.  Align them on a page boundary.  Add printfs
about the symbol table sizes.
Pass the memory sizes to the kernel.
Fix initialization of `unit' (it got moved out of the loop).
Fix adding the bss size (it got moved inside an ifdef).
Initialize serial port when RB_SERIAL is toggled on.
Fix comments.
Clean up formatting of recently added code.

io.c:
Clean up formatting of recently added code.

netboot/main.c, machdep.c, wd.c:
Change names of bootinfo fields.

LINT:
Nuke SYMTAB_SPACE.
Fix comment about DODUMP.

Makefile.i386:
Nuke use of dbsym.
Exclude gcc symbols from kernel unless compiling with -g.
Remove unused macro.
Fix comments and formatting.

genassym.c:
Generate defines for some new bootinfo fields.  Change names of old ones.

locore.s:
Copy only the valid part of the `struct bootinfo' passed by the loader.
Reserve space for symbol table, if any.

machdep.c:
Check the memory sizes passed by the loader, if any.  Don't use them yet.

bootinfo.h:
Add a size field so that we can resolve some mismatches between the loader
bootinfo and the kernel boot info.  The version number is not so good for
this because of historical botches and because it's harder to maintain.
Add memory size and symbol table fields.  Change the names of everything.

Hacks to save a few bytes:

asm.S, boot.c, boot2.S:
Replace `ouraddr' by `(BOOTSEG << 4)'.

boot.c:
Don't statically initialize `loadflags' to 0.  Disable the "REDUNDANT"
code that skips the BIOS variables.  Eliminate `total'.  Combine some
more printfs.

boot.h, disk.c, io.c, table.c:
Move all statically initialzed data to table.c.

io.c:
Don't put the A20 gate bits in a variable.
1995-01-25 21:40:47 +00:00
Justin T. Gibbs
58e4304e3d Handle the aic7770 driver's dependancies correctly.
YOU MUST REBUILD CONFIG.
1994-12-31 19:27:29 +00:00
David Greenman
150f9c68d5 Go back to -O optimization...Bruce's arguments against -O2 are convincing
enough for me.
1994-11-27 14:26:16 +00:00
David Greenman
63281ad752 Changed optimization level to -O2. 1994-11-24 14:26:11 +00:00
Bruce Evans
d0c8f50566 Don't define KERNEL for compiling genassym. The prototype for the system
printf() is inconsistent with the prototype for the library printf() and
gets declared if DIAGNOSTIC is defined because <vm/vm_page.h> includes
<sys/systm.h>.
1994-11-15 14:43:45 +00:00
Bruce Evans
40974c748a Never strip the kernel.
Recommend -Wimplicit in CWARNFLAGS next.  There are still a few hundred
potential arg mismatches because no function declaration is in scope.

Don't duplicate option `-I.'.

Remove null editing of the assembler source for all profiled objects.
The required magic has been done since prehistoric times by an
asm("mcount") declaration.

Simplify the clean rule.

Don't try to be clever about timestamps involving genassym.  genassym's
timestamp usually got ahead of assym.s's timestamp, so `make' almost
always had to run genassym and compare *assym.s to decide that nothing
needed to be done.  The cost is reassembling a few files whenever
genassym is rebuilt.  Assembling is almost as fast as comparing.

Always go through genassym.o to build genassym.  This would have avoided
numerous bugs involving mkdep -p.  Now it just stops genassym from
depending on the name of the temporary object file.

Use ${CFLAGS} for building genassym.  Mainly ${CWARNFLAGS} were missing.
1994-10-25 19:34:57 +00:00
Garrett Wollman
6a8d662377 LINT: vastly restructured so that it's actually useful for something
Makefile.i386: make definition of STRIP unconditional.
1994-10-21 01:10:54 +00:00
Garrett Wollman
2a07a4c97e Conditionally define CC, CWARNOPTS, etc., so that `makeoptions' in
config files actually does something useful.
1994-10-18 19:45:46 +00:00
Rodney W. Grimes
def3ff8dc9 Put genassym: back how it was originally, the real bug was in mkdep. 1994-10-03 23:03:38 +00:00
Poul-Henning Kamp
cabc837c74 dependency for genassym was wrong, there is never made a genassym.o file.
made i depend on the src.
1994-10-03 18:51:35 +00:00
Rodney W. Grimes
07049f23e9 genassym: depends on Makefile and genassym.o, genassym.o dependicies are
picked up from .depend.
1994-10-02 22:58:40 +00:00
Poul-Henning Kamp
0ff3ad4e5e In case CWARNFLAGS and COPTFLAGS are already defined (from /etc/make.conf
for instance), don't nuke them.
1994-10-02 21:50:51 +00:00
Rodney W. Grimes
470d929ec2 genassym: depends on the source code too. 1994-10-01 21:43:24 +00:00
David Greenman
22414e535a Laptop Advanced Power Management support by HOSOKAWA Tatsumi.
Submitted by:	HOSOKAWA Tatsumi
1994-10-01 02:56:21 +00:00
Geoff Rehmet
27476ec8f6 Do strip -x of kernel
Obtained from:1.1.5.1
1994-09-29 14:02:40 +00:00
Poul-Henning Kamp
905d9e84dd Fixed the problem where "make depend" was mandatory for building kernel.
moved vnode_if.o up before ${OBJS} in the SYSTEM_OBJS list.
1994-09-23 07:01:59 +00:00
Jordan K. Hubbard
12cada7161 Add SYSV shm stuff back to LINT.
chflags noschg /kernel in Makefile.i386 so if our previous kernel
was installed by make install, the second won't fall over.
1994-09-16 10:23:46 +00:00
Garrett Wollman
6bf5b24768 Don't include options MULTICAST or MROUTING in generic kernels. MULTICAST
has no effect now, and MROUTING should never be defined by default.
(Eventually the code should be dynamically loadable.)

Also, allow for Pentium CPUs in GENERICBT kernels.

Add an `install' rule to Makefile.i386, which looks like this:
	mv /kernel /kernel.old
	install -c -m 555 -o root -g root -fschg kernel /
I'd like comments on whether or not you think it's a good idea to have
the kernel be immutable by default; I'm happy either way.
CVS:
1994-09-09 22:03:51 +00:00
Jordan K. Hubbard
7d5a70fc3b Get rid of a superfluous echo.
Submitted by:	jkh
1994-09-05 19:10:01 +00:00
Jordan K. Hubbard
82e08a73de Remove symlink before remaking it for libkern.a
Reviewed by:	jkh
Submitted by:	dima
1994-09-05 19:09:15 +00:00
Bruce Evans
86a8648eef Restore some explicit dependencies for locore.s so that "make clean; make"
works even if .depend doesn't exist.
1994-09-02 20:24:15 +00:00
Bruce Evans
0611064bd9 Remove exception.o, swtch.o, support.o, conf.o and machdep.o from
SYSTEM_OBS.  They are now normal objects.

Remove stale dependencies for the above now-normal objects and for
locore.o and generate dependencies using mkdep.  Config doesn't
generate lists of assembler source files so the lists to be mkdep'ed
have to be given explictly.  Only the standard *.s files are given,
so the dependencies for gnu/fpemul/*.s are incomplete.  *.S files
would be handled right if config put them in CFILES.

Don't define NPX.  It was replaced by NNPX > 0 years ago.

Define LOAD_ADDRESS in COPTS so that compiling machdep.c isn't a special
case.

Moving around the dependencies exposed a bug in make.  It doesn't
know that assym.s and ./assym.s are the same.  Add a rule tell it.
1994-08-30 17:17:49 +00:00
Jordan K. Hubbard
d42826b436 I was in bourne-shell mode when I wrote this.. *blush*.
Submitted by:	jkh
1994-08-23 09:54:22 +00:00
Jordan K. Hubbard
84fb67c981 Fix the libkern references to hopefully DTRT. See comments regarding
a slight change in how profiled version is selected - may need to adjust
some .mk macros if PROF is foolishly initialized anywhere to a null value.
Submitted by:	jkh
1994-08-23 04:21:21 +00:00
Garrett Wollman
f23b4c91c4 Fix up some sloppy coding practices:
- Delete redundant declarations.
- Add -Wredundant-declarations to Makefile.i386 so they don't come back.
- Delete sloppy COMMON-style declarations of uninitialized data in
  header files.
- Add a few prototypes.
- Clean up warnings resulting from the above.

NB: ioconf.c will still generate a redundant-declaration warning, which
is unavoidable unless somebody volunteers to make `config' smarter.
1994-08-18 22:36:09 +00:00
Garrett Wollman
f540b1065a Change all #includes to follow the current Berkeley style. Some of these
``changes'' are actually not changes at all, but CVS sometimes has trouble
telling the difference.

This also includes support for second-directory compiles.  This is not
quite complete yet, as `config' doesn't yet do the right thing.  You can
still make it work trivially, however, by doing the following:

rm /sys/compile
mkdir /usr/obj/sys/compile
ln -s M-. /sys/compile
cd /sys/i386/conf
config MYKERNEL
cd ../../compile/MYKERNEL
ln -s /sys @
rm machine
ln -s @/i386/include machine
make depend
make
1994-08-13 03:50:34 +00:00
David Greenman
539d9ba017 Don't strip the kernel. 1994-08-06 10:52:15 +00:00
Rodney W. Grimes
c7cb9b9654 SYSCONS is no longer needed since pccons has been removed.
Update the GENERIC* to have the new file system options and the new kernel
name.

Fix the clean target in Makefile.i386 to rm kernel instead of 386bsd.
1994-05-26 13:38:01 +00:00
Rodney W. Grimes
26f9a76710 The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.
Reviewed by:	Rodney W. Grimes
Submitted by:	John Dyson and David Greenman
1994-05-25 09:21:21 +00:00
David Greenman
d230622648 New interrupt code from Bruce Evans. In additional to Bruce's attached
list of changes, I've made the following additional changes:

1) i386/include/ipl.h renamed to spl.h as the name conflicts with the
   file of the same name in i386/isa/ipl.h.
2) changed all use of *mask (i.e. netmask, biomask, ttymask, etc) to
   *_imask (net_imask, etc).
3) changed vestige of splnet use in if_is to splimp.
4) got rid of "impmask" completely (Bruce had gotten rid of netmask),
   and are now using net_imask instead.
5) dozens of minor cruft to glue in Bruce's changes.

   These require changes I made to config(8) as well, and thus it must
be rebuilt.

-DG

from Bruce Evans:

sio:
	o No diff is supplied.  Remove the define of setsofttty().  I hope
	  that is enough.

*.s:
	o i386/isa/debug.h no longer exists.  The event counters became too
	  much trouble to maintain.  All function call entry and exception
	  entry counters can be recovered by using profiling kernel (the new
	  profiling supports all entry points; however, it is too slow to
	  leave enabled all the time; it also).  Only BDBTRAP() from debug.h
	  is now used.  That is moved to exception.s.  It might be worth
	  preserving SHOW_BITS() and calling it from _mcount() (if enabled).
	o T_ASTFLT is now only set just before calling trap().
	o All exception handlers set SWI_AST_MASK in cpl as soon as possible
	  after entry and arrange for _doreti to restore it atomically with
	  exiting.  It is not possible to set it atomically with entering
	  the kernel, so it must be checked against the user mode bits in
	  the trap frame before committing to using it.  There is no place
	  to store the old value of cpl for syscalls or traps, so there are
	  some complications restoring it.

Profiling stuff (mostly in *.s):
	o Changes to kern/subr_mcount.c, gcc and gprof are not supplied yet.
	o All interesting labels `foo' are renamed `_foo' and all
	  uninteresting labels `_bar' are renamed `bar'.  A small change
	  to gprof allows ignoring labels not starting with underscores.
	o MCOUNT_LABEL() is to provide names for counters for times spent
	  in exception handlers.
	o FAKE_MCOUNT() is a version of MCOUNT() suitable for exception
	  handlers.  Its arg is the pc where the exception occurred.  The
	  new mcount() pretends that this was a call from that pc to a
	  suitable MCOUNT_LABEL().
	o MEXITCOUNT is to turn off any timer started by MCOUNT().

/usr/src/sys/i386/i386/exception.s:
	o The non-BDB BPTTRAP() macros were doing a sti even when interrupts
	  were disabled when the trap occurred.  The sti (fixed) sti is
	  actually a no-op unless you have my changes to machdep.c that make
	  the debugger trap gates interrupt gates, but fixing that would
	  make the ifdefs messier.  ddb seems to be unharmed by both
	  interrupts always disabled and always enabled (I had the branch in
	  the fix back to front for some time :-().
	o There is no known pushal bug.
	o tf_err can be left as garbage for syscalls.

/usr/src/sys/i386/i386/locore.s:
	o Fix and update BDE_DEBUGGER support.
	o ENTRY(btext) before initialization was dangerous.
	o Warm boot shot was longer than intended.

/usr/src/sys/i386/i386/machdep.c:
	o DON'T APPLY ALL OF THIS DIFF.  It's what I'm using, but may require
	  other changes.
	  Use the following:
		o Remove aston() and setsoftclock().
	  Maybe use the following:
		o No netisr.h.
		o Spelling fix.
		o Delay to read the Rebooting message.
		o Fix for vm system unmapping a reduced area of memory
		  after bounds_check_with_label() reduces the size of
		  a physical i/o for a partition boundary.  A similar
		  fix is required in kern_physio.c.
		o Correct use of __CONCAT.  It never worked here for non-
		  ANSI cpp's.  Is it time to drop support for non-ANSI?
		o gdt_segs init.  0xffffffffUL is bogus because ssd_limit
		  is not 32 bits.  The replacement may have the same
		  value :-), but is more natural.
		o physmem was one page too low.  Confusing variable names.
	  Don't use the following:
		o Better numbers of buffers.  Each 8K page requires up to
		  16 buffer headers.  On my system, this results in 5576
		  buffers containing [up to] 2854912 bytes of memory.
		  The usual allocation of about 384 buffers only holds
		  192K of disk if you use it on an fs with a block size
		  of 512.
		o gdt changes for bdb.
		o *TGT -> *IDT changes for bdb.
		o #ifdefed changes for bdb.

/usr/src/sys/i386/i386/microtime.s:
	o Use the correct asm macros.  I think asm.h was copied from Mach
	  just for microtime and isn't used now.  It certainly doesn't
	  belong in <sys>.  Various macros are also duplicated in
	  sys/i386/boot.h and libc/i386/*.h.
	o Don't switch to and from the IRR; it is guaranteed to be selected
	  (default after ICU init and explicitly selected in isa.c too, and
	  never changed until the old microtime clobbered it).

/usr/src/sys/i386/i386/support.s:
	o Non-essential changes (none related to spls or profiling).
	o Removed slow loads of %gs again.  The LDT support may require
	  not relying on %gs, but loading it is not the way to fix it!
	  Some places (copyin ...) forgot to load it.  Loading it clobbers
	  the user %gs.  trap() still loads it after certain types of
	  faults so that fuword() etc can rely on it without loading it
	  explicitly.  Exception handlers don't restore it.  If we want
	  to preserve the user %gs, then the fastest method is to not
	  touch it except for context switches.  Comparing with
	  VM_MAXUSER_ADDRESS and branching takes only 2 or 4 cycles on
	  a 486, while loading %gs takes 9 cycles and using it takes
	  another.
	o Fixed a signed branch to unsigned.

/usr/src/sys/i386/i386/swtch.s:
	o Move spl0() outside of idle loop.
	o Remove cli/sti from idle loop.  sw1 does a cli, and in the
	  unlikely event of an interrupt occurring and whichqs becoming
	  zero, sw1 will just jump back to _idle.
	o There's no spl0() function in asm any more, so use splz().
	o swtch() doesn't need to be superaligned, at least with the
	  new mcounting.
	o Fixed a signed branch to unsigned.
	o Removed astoff().

/usr/src/sys/i386/i386/trap.c:
	o The decentralized extern decls were inconsistent, of course.
	o Fixed typo MATH_EMULTATE in comments. */
	o Removed unused variables.
	o Old netmask is now impmask; print it instead.  Perhaps we
	  should print some of the new masks.
	o BTW, trap() should not print anything for normal debugger
	  traps.

/usr/src/sys/i386/include/asmacros.h:
	o DON'T APPLY ALL OF THIS DIFF.  Just use some of the null macros
	  as necessary.

/usr/src/sys/i386/include/cpu.h:
	o CLKF_BASEPRI() changes since cpl == SWI_AST_MASK is now normal
	  while the kernel is running.
	o Don't use var++ to set boolean variables.  It fails after a mere
	  4G times :-) and is slower than storing a constant on [3-4]86s.

/usr/src/sys/i386/include/cpufunc.h:
	o DON'T APPLY ALL OF THIS DIFF.  You need mainly the include of
	  <machine/ipl.h>.  Unfortunately, <machine/ipl.h> is needed by
	  almost everything for the inlines.

/usr/src/sys/i386/include/ipl.h:
	o New file.  Defines spl inlines and SWI macros and declares most
	  variables related to hard and soft interrupt masks.

/usr/src/sys/i386/isa/icu.h:
	o Moved definitions to <machine/ipl.h>

/usr/src/sys/i386/isa/icu.s:
	o Software interrupts (SWIs) and delayed hardware interrupts (HWIs)
	  are now handled uniformally, and dispatching them from splx() is
	  more like dispatching them from _doreti.  The dispatcher is
	  essentially *(handler[ffs(ipending & ~cpl)]().
	o More care (not quite enough) is taken to avoid unbounded nesting
	  of interrupts.
	o The interface to softclock() is changed so that a trap frame is
	  not required.
	o Fast interrupt handlers are now handled more uniformally.
	  Configuration is still too early (new handlers would require
	  bits in <machine/ipl.h> and functions to vector.s).
	o splnnn() and splx() are no longer here; they are inline functions
	  (could be macros for other compilers).  splz() is the nontrivial
	  part of the old splx().

/usr/src/sys/i386/isa/ipl.h
	o New file.  Supposed to have only bus-dependent stuff.  Perhaps
	  the h/w masks should be declared here.

/usr/src/sys/i386/isa/isa.c:
	o DON'T APPLY ALL OF THIS DIFF.  You need only things involving
	  *mask and *MASK and comments about them.  netmask is now a pure
	  software mask.  It works like the softclock mask.

/usr/src/sys/i386/isa/vector.s:
	o Reorganize AUTO_EOI* macros.
	o Option FAST_INTR_HANDLER_USERS_ES for people who don't trust
	  fastintr handlers.
	o fastintr handlers need to metamorphose into ordinary interrupt
	  handlers if their SWI bit has become set.  Previously, sio had
	  unintended latency for handling output completions and input
	  of SLIP framing characters because this was not done.

/usr/src/sys/net/netisr.h:
	o The machine-dependent stuff is now imported from <machine/ipl.h>.

/usr/src/sys/sys/systm.h
	o DON'T APPLY ALL OF THIS DIFF.  You need mainly the different
	  splx() prototype.  The spl*() prototypes are duplicated as
	  inlines in <machine/ipl.h> but they need to be duplicated here
	  in case there are no inlines.  I sent systm.h and cpufunc.h
	  to Garrett.  We agree that spl0 should be replaced by splnone
	  and not the other way around like I've done.

/usr/src/sys/kern/kern_clock.c
	o splsoftclock() now lowers cpl so the direct call to softclock()
	  works as intended.
	o softclock() interface changed to avoid passing the whole frame
	  (some machines may need another change for profile_tick()).
	o profiling renamed _profiling to avoid ANSI namespace pollution.
	  (I had to improve the mcount() interface and may as well fix it.)
	  The GUPROF variant doesn't actually reference profiling here,
	  but the 'U' in GUPROF should mean to select the microtimer
	  mcount() and not change the interface.
1994-04-02 07:00:53 +00:00
Andreas Schulz
16a6a70817 Makefile.i386:
put vers.o at the end of the loader line. We are simply jumping in the
moment into the first location of the text segment in 386bsd. So the
linking order is very important :-). With the addition of the const
types in newvers.sh we jumped into them. I have experimented with an
entry point specification, but was unsuccessfull. Someone else should
look at this.
devices.i386:
files.i386:
Added entries for a Sony cdrom driver.
1994-03-21 20:48:52 +00:00
Rodney W. Grimes
dbd8393f77 I don't want to read about all the people that forgot this due to syscons
changes, so I am adding it here until AFTER the 1.1 release:
+ COPTFLAGS+=-D__FreeBSD__
1994-02-17 06:51:15 +00:00
Jordan K. Hubbard
8d5a4c1f9e Use -Z instead of -z to build kernels. This is consistent with NetBSD's
usage of the -[Zz] flags (we're now in sync).  Part of the ld update
changes.
1994-02-13 20:37:32 +00:00
Nate Williams
f657493cee Added -static declartion to genassym compile so a kernel doesn't require
working shlibs.
1994-01-27 21:10:14 +00:00
David Greenman
7f8cb36869 "New" VM system from John Dyson & myself. For a run-down of the
major changes, see the log of any effected file in the sys/vm
directory (swap_pager.c for instance).
1994-01-14 16:25:31 +00:00
Garrett Wollman
aaf08d94ca Make everything compile with -Wtraditional. Make it easier to distribute
a binary link-kit.  Make all non-optional options (pagers, procfs) standard,
and update LINT to reflect new symtab requirements.

NB: -Wtraditional will henceforth be forgotten.  This editing pass was
primarily intended to detect any constructions where the old code might
have been relying on traditional C semantics or syntax.  These were all
fixed, and the result of fixing some of them means that -Wall is now a
realistic possibility within a few weeks.
1993-12-19 00:55:01 +00:00
David Greenman
6d01f02e51 1) Added proc file system from Paul Kranenburg with changes from
John Dyson to make it reliably work under FreeBSD.
2) Added and enabled PROCFS in the GENERICxx and LINT kernels.
3) New execve() from me. Still work to be done here, but this version
	works well and is needed before other changes can be made. For
	a description of the design behind this, see freebsd-arch or
	ask me.
4) Rewrote stack fault code; made user stack VM grow as needed rather
	than all up front; improves performance a little and reduces
	process memory requirements.
5) Incorporated fix from Gene Stark to fault/wire a user page table
	page to fix a problem in copyout. This is a temporary fix and
	is not appropriate for pageable page tables. For a description
	of the problem, see Gene's post to the freebsd-hackers mailing
	list.
6) Tighten up vm_page struct to reduce memory requirements for it. ifdef
	pager page lock code as it's not being used currently.
7) Introduced new element to vmspace struct - vm_minsaddr; initial
	(minimum) stack address. Compliment to vm_maxsaddr.
8) Added a panic if the allocation for process u-pages fails.
9) Improve performance and accuracy of kernel profiling by putting in
	a little inline assembly instead of spl().
10) Made serial console with sio driver work. Still has problems with
	serial input, but is almost useable.
11) Added -Bstatic to SYSTEM_LD in Makefile.i386 so that kernels will
	build properly with the new ld.
1993-12-12 12:22:57 +00:00
Garrett Wollman
381fe1aaf4 Make the LINT kernel compile with -W -Wreturn-type -Wcomment -Werror, and
add same (sans -Werror) to Makefile for future compilations.
1993-11-25 01:38:01 +00:00
Paul Richards
cf0f1d209c Changed -Z back to -z.
In line with all other ld's -z is now the "standard" ZMAGIC format.
1993-11-16 00:45:04 +00:00
Paul Richards
f4165dc353 Changed -z to -Z so we create old-style ZMAGIC kernels. 1993-11-15 21:06:08 +00:00
David Greenman
0967373e1c First steps in rewriting locore.s, and making info useful
when the machine panics.

i386/i386/locore.s:
1) got rid of most .set directives that were being used like
	#define's, and replaced them with appropriate #define's in
	the appropriate header files (accessed via genassym).
2) added comments to header inclusions and global definitions,
	and global variables
3) replaced some hardcoded constants with cpp defines (such as
	PDESIZE and others)
4) aligned all comments to the same column to make them easier to
	read
5) moved macro definitions for ENTRY, ALIGN, NOP, etc. to
	/sys/i386/include/asmacros.h
6) added #ifdef BDE_DEBUGGER around all of Bruce's debugger code
7) added new global '_KERNend' to store last location+1 of kernel
8) cleaned up zeroing of bss so that only bss is zeroed
9) fix zeroing of page tables so that it really does zero them all
	- not just if they follow the bss.
10) rewrote page table initialization code so that 1) works correctly
	and 2) write protects the kernel text by default
11) properly initialize the kernel page directory, upages, p0stack PT,
	and page tables. The previous scheme was more than a bit
	screwy.
12) change allocation of virtual area of IO hole so that it is
	fixed at KERNBASE + 0xa0000. The previous scheme put it
	right after the kernel page tables and then later expected
	it to be at KERNBASE +0xa0000
13) change multiple bogus settings of user read/write of various
	areas of kernel VM - including the IO hole; we should never
	be accessing the IO hole in user mode through the kernel
	page tables
14) split kernel support routines such as bcopy, bzero, copyin,
	copyout, etc. into a seperate file 'support.s'
15) split swtch and related routines into a seperate 'swtch.s'
16) split routines related to traps, syscalls, and interrupts
	into a seperate file 'exception.s'
17) remove some unused global variables from locore that got
	inserted by Garrett when he pulled them out of some .h
	files.

i386/isa/icu.s:
1) clean up global variable declarations
2) move in declaration of astpending and netisr

i386/i386/pmap.c:
1) fix calculation of virtual_avail. It previously was calculated
	to be right in the middle of the kernel page tables - not
	a good place to start allocating kernel VM.
2) properly allocate kernel page dir/tables etc out of kernel map
	- previously only took out 2 pages.

i386/i386/machdep.c:
1) modify boot() to print a warning that the system will reboot in
	PANIC_REBOOT_WAIT_TIME amount of seconds, and let the user
	abort with a key on the console. The machine will wait for
	ever if a key is typed before the reboot. The default is
	15 seconds, but can be set to 0 to mean don't wait at all,
	-1 to mean wait forever, or any positive value to wait for
	that many seconds.
2) print "Rebooting..." just before doing it.

kern/subr_prf.c:
1) remove PANICWAIT as it is deprecated by the change to machdep.c

i386/i386/trap.c:
1) add table of trap type strings and use it to print a real trap/
	panic message rather than just a number. Lot's of work to
	be done here, but this is the first step. Symbolic traceback
	is in the TODO.

i386/i386/Makefile.i386:
1) add support in to build support.s, exception.s and swtch.s

...and various changes to various header files to make all of the
	above happen.
1993-11-13 02:25:21 +00:00
Garrett Wollman
024253188b Try to be a little smarter about touching the date on assym.s, so that
if something changes which doesn't affect it, locore doesn't have to get
rebuilt.  This is at the cost of a genassym and a cmp in every compile,
until someone can figure out how to make `make' smarter itself.
1993-11-07 16:46:33 +00:00