96 Commits

Author SHA1 Message Date
David Greenman
90324b078e Whoops, accidently left out some pieces of the munmapfd patch. 1994-09-02 15:06:51 +00:00
David Greenman
dd968eae1a Make sure that uio_resid isn't negative in read(). 1994-09-02 14:04:39 +00:00
David Greenman
8fceb1ba2d Disallow truncating to negative file sizes. Doing so causes ffs_truncate()
and perhaps other fs truncate's to go crazy and panic the machine or worse.
This fixes the truncate bug reported by Michael Class.
1994-09-02 10:23:43 +00:00
David Greenman
b36a2ba1ce munmapfd() was being called with one too few params - bug introduced
during my initial kernel port.
1994-09-02 10:17:30 +00:00
David Greenman
2fc62994a0 Make olstat() consistent with lstat() - so they both return the same
owner..

Submitted by:	Kirk McKusick
1994-09-02 04:14:44 +00:00
David Greenman
f992f48043 Fixed bug that caused system processes to run at realtime priority. 1994-09-01 11:20:11 +00:00
David Greenman
60fef21477 Realtime priority scheduling support.
Added "sys/rtprio.h" with the used defines.
    Added rtprio(2) - the kernel interface.                  init_sysent.c,
                                                             kern_resource.c
                                                             syscalls.master
    Added 32 new runqueues (rtqs), with initialization.      kern_proc.c
                                                             kern_synch.c
    Realtime processes do not change nice/priority           kern_synch.c
    Added a column "rt" to ddb's ps (#ifdef RTPRIO_DEBUG)    kern_synch.c
    Realtime priorities are enherited through fork().        kern_fork.c
    Init (and children) NOT run as realtime process.         init_main.c

Submitted by:	Henrik Vestergaard Draboel
1994-09-01 05:15:50 +00:00
David Greenman
e8fb0b2c17 Realtime priority scheduling support.
Submitted by:	Henrik Vestergaard Draboel
1994-09-01 05:12:53 +00:00
David Greenman
b1c9b68c8e Conditionalized support for syscons as the console so that it can be
made optional in the kernel config file.

Submitted by:	John Hay
1994-08-31 07:44:22 +00:00
David Greenman
9aba88bf29 Rather than exclude bounce buffers support with NOBOUNCE, include it
with BOUNCE_BUFFERS. This is more intuitive, and is better for future
multiplatform support. Added BOUNCE_BUFFERS option to the GENERIC and
LINT kernel config files.
1994-08-31 06:17:49 +00:00
David Greenman
0711286530 Cleaned up after Bruce: there were still some things that included
com.h/lpa.h. Removed all vestiges of com/lpa out of conf.c and also
fixed up the end of cdevsw/bdevsw to have "no" routines instead of
a NULL pointer (suggested by someone a few weeks back).
1994-08-30 19:36:35 +00:00
David Greenman
e66defe8ab Changed to reclaim memory from other buffers to eliminate memory
thrashing.

Submitted by:	John Dyson
1994-08-30 18:19:11 +00:00
David Greenman
1cdeb653a8 "bogus" fixes from 1.1.5 to work around some cache coherency problems. 1994-08-29 06:09:15 +00:00
Bruce Evans
406d45e059 Don't test if a u_int is < 0. The remaining test is sufficient and the
extra one caused a warning.
1994-08-28 16:16:33 +00:00
David Greenman
8a129caed5 1) Changed ddb into a option rather than a pseudo-device (use options DDB
in your kernel config now).
2) Added ps ddb function from 1.1.5. Cleaned it up a bit and moved into its
   own file.
3) Added \r handing in db_printf.
4) Added missing memory usage stats to statclock().
5) Added dummy function to pseudo_set so it will be emitted if there
   are no other pseudo declarations.
1994-08-27 16:14:39 +00:00
Garrett Wollman
24ea21ced4 Added ntp_gettime and ntp_adjtime syscalls, both nosys'ed out until
someone gets to re-integrating the code.  ntp_gettime() should be
turned into a sysctl variable and emulated in the library.
1994-08-26 18:15:25 +00:00
Søren Schmidt
acb5f10f46 Oops didn't check that init_sysent.c was generated proberly. Fixed.
Reviewed by:
Submitted by:
1994-08-26 09:33:37 +00:00
Søren Schmidt
75c34c34d6 Changes to new sysent structure. TODO MOD_EXEC support.
Reviewed by:
Submitted by:
1994-08-26 08:42:07 +00:00
Bruce Evans
5b96a5b90d Support speeds 57600 and 115200.
Privatize functions.
1994-08-25 10:01:00 +00:00
Søren Schmidt
f3f0ca6051 Changes preparing for iBCS support
Reviewed by:
Submitted by:
1994-08-24 11:52:21 +00:00
David Greenman
0fd1a014fe Pay attention to *all* errors from copyinstr(). This patch fixes a bug
that causes a no-panic instant reboot when bogus argv/envvs are fed to
execve().
1994-08-24 10:53:53 +00:00
David Greenman
e0c0215442 Initialized v_writecount. 1994-08-24 04:06:39 +00:00
David Greenman
4f5a3fef1a print "BUSY" instead of error number if filesystem was busy during
vfs_unmountall() - this is the most common case. If it was a different
error, then print the error number.
1994-08-22 17:05:00 +00:00
David Greenman
e0e9c42112 Implemented filesystem clean bit via:
machdep.c:
	Changed printf's a little and call vfs_unmountall() if the sync was
	successful.

cd9660_vfsops.c, ffs_vfsops.c, nfs_vfsops.c, lfs_vfsops.c:
	Allow dismount of root FS. It is now disallowed at a higher level.

vfs_conf.c:
	Removed unused rootfs global.

vfs_subr.c:
	Added new routines vfs_unmountall and vfs_unmountroot. Filesystems
	are now dismounted if the machine is properly rebooted.

ffs_vfsops.c:
	Toggle clean bit at the appropriate places. Print warning if an
	unclean FS is mounted.

ffs_vfsops.c, lfs_vfsops.c:
	Fix bug in selecting proper flags for VOP_CLOSE().

vfs_syscalls.c:
	Disallow dismounting root FS via umount syscall.
1994-08-20 16:03:26 +00:00
David Greenman
7b42c960f8 1) cleaned up after Garrett - fixed more redundant declarations, changed
use of timeout_t -> timeout_func_t in aha1542 and aha1742 drivers.
2) fix a bug in the portalfs that was uncovered by better prototyping -
   specifically, the time must be converted from timeval to timespec
   before storing in va_atime.
3) fixed/added some miscellaneous prototypes
1994-08-20 03:49:02 +00:00
David Greenman
3edb235c09 Terry Lambert's loadable kernel module support w/improvements from the
NetBSD group.
1994-08-19 11:45:29 +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
David Greenman
9a500b2bcc Added support for TIOCSTAT ioctl. This allows shells that use raw/cbreak
tty modes to process a control-T and do the right thing.
1994-08-18 09:16:37 +00:00
David Greenman
605f11c8f2 Moved over my fix for vnode lossage when multiple TIOCSCTTY ioctls are
done. This patch was extended to also include a suggested change by
Kirk McKusick which allows the control tty to be reasigned to a different
tty without losing a vnode.
1994-08-18 03:53:38 +00:00
David Greenman
0e42760866 Made the kernel compile cleanly with gcc 2.6.0. Thanks go to Bruce
Evans for suggesting a method to detect various versions of gcc.
1994-08-13 14:21:58 +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
Garrett Wollman
9ae159169a Make it easier for programs to figure out what revision of FreeBSD they
are running under.  Here's how to bootstrap (order is important):

1) Re-compile gcc (just the driver is all you need).
2) Re-compile libc.
3) Re-compile your kernel.  Reboot.
4) cd /usr/src/include; make install

You can now detect the compilation environment with the following code:

#if !defined(__FreeBSD__)
#define __FreeBSD_version 199401
#elif __FreeBSD__ == 1
#define __FreeBSD_version 199405
#else
#include <osreldate.h>
#endif

You can determine the run-time environment by calling the new C library
function getosreldate(), or by examining the MIB variable kern.osreldate.

For the time being, the release date is defined as 199409, which we have
already established as our target.
1994-08-10 06:25:07 +00:00
Garrett Wollman
5c8b38d41d Handle NMI's in accordance with data in van Gilluwe book. 1994-08-10 04:39:52 +00:00
Garrett Wollman
6ae6a09b83 Change default security level to -1, so that users don't get bitten by
upcoming makefile change.
1994-08-10 02:41:09 +00:00
David Greenman
92dc7331c9 Made lockf advisory locking code generic (rather than ufs specific), and
use it in NFS. This is required both for diskless support and for POSIX
compliance. Note: the support in NFS is only for the local node.

Submitted by:	based on work originally done by Yuval Yurom
1994-08-08 17:31:01 +00:00
Garrett Wollman
57034e7407 Run-time configuration of VFS update interval. Old UPDATE_INTERVAL
configuration option is no longer supported.
1994-08-08 15:41:08 +00:00
David Greenman
7d7bb69d41 Detect the "EOF" condition. Specifically, end of partition.
Submitted by:	Bruce Evans
1994-08-08 13:53:55 +00:00
David Greenman
4e68ceaba0 Process tracing code. Written by Sean Eric Fagan.
Submitted by:	Sean Eric Fagan
1994-08-08 13:00:27 +00:00
David Greenman
866dba7305 Changed B_AGE policy to work correctly in a world with relatively large
buffer caches. The old policy generally ended up caching nothing.
1994-08-08 09:11:44 +00:00
Garrett Wollman
4849be9c13 Define a sysctl MIB variable for the YP domain name. 1994-08-08 00:30:12 +00:00
David Greenman
8339815ff9 Made pmap_kenter "TLB safe". ...and then removed all the pmap_updates that
are no longer needed because of this.
1994-08-07 14:53:27 +00:00
David Greenman
a481f20029 Provide support for upcoming merged VM/buffer cache, and fixed a few bugs
that haven't appeared to manifest themselves (yet).

Submitted by:	John Dyson
1994-08-07 13:10:43 +00:00
David Greenman
16f62314cd Incorporated post 1.1.5 work from John Dyson. This includes performance
improvements via the new routines pmap_qenter/pmap_qremove and pmap_kenter/
pmap_kremove. These routine allow fast mapping of pages for those
architectures that have "normal" MMUs. Also included is a fix to the
pageout daemon to properly check a queue end condition.

Submitted by:	John Dyson
1994-08-06 09:15:42 +00:00
David Greenman
93f6448c49 Implemented support for the "ps_strings" structure (grrrr...) for use in
the userland library libkvm.
1994-08-06 09:06:31 +00:00
David Greenman
0d2afceedd Process scheduling changes - adapted from FreeBSD 1.1.5. Basically,
charge scheduling CPU of child process to the parent and have child
inherit scheduling CPU from parent on fork. Makes a **big** difference
in the feel of the system to interactive users.

Submitted by:	John Dyson
1994-08-06 07:15:04 +00:00
David Greenman
ce921c90fd Fixed bug that would cause free memory reserves to be depleted and cause a
panic in some cases.
Submitted by:	John Dyson
1994-08-04 19:43:13 +00:00
David Greenman
3c4dd3568f Added $Id$ 1994-08-02 07:55:43 +00:00
David Greenman
03e6c2532f Removed all code related to the pagescan daemon, and changed 'act_count'
adjustments to compensate for a world without the pagescan daemon.
1994-08-01 11:25:45 +00:00
David Greenman
9b970c5afa Allow for output processing routine to handle entire character buffer
and thus not require a sleep/wakeup.
Reviewed by:
Submitted by:
1994-08-01 10:42:26 +00:00
Poul-Henning Kamp
c9502b535e Reviewed by: phk
Imported libmd.  This library contains MD2, MD4 and MD5.
These three boggers pop up all over the place all of the time, so I 
decided we needed a library with them.  In general they are used for
security checks, so if you use them you want to link them static.
1994-07-24 03:29:56 +00:00