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Commit Graph

759 Commits

Author SHA1 Message Date
John Dyson
0ada0d6748 Added a missing splx(s). 1995-11-18 23:33:48 +00:00
Bruce Evans
75a85811c1 Fixed the errno returned by rename("dir1", "dir2/."). It was EISDIR
(duh); translate it to EINVAL which is the errno for other renames
to ".".
1995-11-18 11:35:05 +00:00
Bruce Evans
3b9a76f03c Improved formatting.
Added a comment about possibly better handling of INPCK.

Added a prototype.
1995-11-18 11:07:00 +00:00
Bruce Evans
7bcb7905fd Cleaned up SA_NODEFER changes.
Added prototypes.
1995-11-18 10:01:38 +00:00
Poul-Henning Kamp
5204129576 All net.* sysctl converted now. 1995-11-16 19:00:27 +00:00
Bruce Evans
986f4ce75e Fixed support for DIAGNOSTIC option. SYSCTL_INT() depends on kernel.h. 1995-11-16 09:45:23 +00:00
Poul-Henning Kamp
43f242265a Do what is generally belived to be the right thing, though it may not be :-) 1995-11-14 20:43:29 +00:00
Poul-Henning Kamp
d457bade76 Final part of this bunch of sysctl commits: cleanup. 1995-11-14 09:42:22 +00:00
Poul-Henning Kamp
af8364b0ad Get rid of the last debug sysctl variables of the old style. 1995-11-14 09:40:06 +00:00
Poul-Henning Kamp
9565c0e60d Get rid of hostnamelen variable. 1995-11-14 09:37:22 +00:00
Poul-Henning Kamp
a9ad941c7a Move all the VM sysctl stuff home where it belongs. 1995-11-14 09:29:34 +00:00
Poul-Henning Kamp
16cd04a3b8 A couple of nitpicks. 1995-11-14 09:26:17 +00:00
Poul-Henning Kamp
f7152c81a0 Convert dumpdev & securelevel. 1995-11-14 09:22:15 +00:00
Poul-Henning Kamp
395e673587 Change some of the debug sysctl vars. The semantics of these will change. 1995-11-14 09:19:16 +00:00
Poul-Henning Kamp
549a075acc KERN_MAXFILESPERPROC, KERN_MAXFILES went to another file. 1995-11-14 09:17:32 +00:00
Poul-Henning Kamp
972f9b209d Hmm, I seem to have got all my patches screwed up anyway. Too bad.
this is where the proctable stuff went.
1995-11-14 09:16:27 +00:00
Poul-Henning Kamp
27aef04699 Get rid of domainnamelen. 1995-11-14 09:10:54 +00:00
Poul-Henning Kamp
a52752a457 Move KERN_NTP to a more suitable file. 1995-11-14 09:07:14 +00:00
Poul-Henning Kamp
45a4ad1146 Move the process-table stuff to a more suitable file.
Remove filetable stuff from kern_sysctl.c
1995-11-14 09:05:40 +00:00
Poul-Henning Kamp
18e6fe0250 Add new-style sysctl for KERN_FILE here. 1995-11-14 08:58:35 +00:00
Poul-Henning Kamp
deae269ab1 Try to make my new scheme work more along the lines of the manual.
There are still some gray areas here and there.
1995-11-13 13:54:09 +00:00
David Greenman
c2f9f36bae Use kmem_alloc_pageable/kmem_free to allocate memory instead of individual
VM map functions.
1995-11-13 10:45:22 +00:00
Bruce Evans
c8cbd8682f Fixed a cast in olseek().
Fixed confusing order of declarations of getvnode()'s args.
1995-11-13 08:22:21 +00:00
Poul-Henning Kamp
ae0eb976c5 The entire sysctl callback to read/write version. I havn't tested this as
much as I'd like to, but the malloc stunt I tried for an interim for
sure does worse.
Now we can read and write from any kind of address-space, not only
user and kernel, using callbacks.
This may be over-generalization for now, but it's actually simpler.
1995-11-12 19:52:09 +00:00
Bruce Evans
f35a53bf11 Restored the (buggy) historical behaviour of getdomainname().
Negative name lengths for getdomainname() and setdomainname() were
converted to large positive ones by misdeclaring the args struct.
1995-11-12 07:04:30 +00:00
Bruce Evans
d2d3e8751c Included <sys/sysproto.h> to get central declarations for syscall args
structs and prototypes for syscalls.

Ifdefed duplicated decentralized declarations of args structs.  It's
convenient to have this visible but they are hard to maintain.  Some
are already different from the central declarations.  4.4lite2 puts
them in comments in the function headers but I wanted to avoid the
large changes for that.
1995-11-12 06:43:28 +00:00
Bruce Evans
c484c256a5 Updated machine-generated files. 1995-11-12 04:29:37 +00:00
Bruce Evans
93915a2ac4 Fixed the args list for mount(). We're not ready for the BSD4.4lite2/
NetBSD interface.

Increased the bogusness of the args list for mmap().  The args lists for
most of the memory mapping functions are bogus.  The args lists in
syscalls.master are a little better than the ones in the args structs
currently being used, but the improvement for mmap() changed the object
code and I don't want to worry about that now.

Increased the bogusness of the args list for fcntl.  BSD4.4lite2/NetBSD
uses `void *' instead of int for the third arg.  This has the advantage
of working when `void *'s are longer than ints, but requires extra bogus
casts that I hope to avoid.

Fixed the args list for uname.  `struct outsname' seems to be a typo,
not an old interface.

Added comments about bogus args lists for open, mount, msync, munmap,
mprotect, madvise, mincore, fcntl, semsys, msgsys and shmsys.
1995-11-12 04:24:53 +00:00
Bruce Evans
7147b19de5 Fixed the type of readv(). An args struct member name conflicted with the
machine-generated one in <sys/sysproto.h>.
1995-11-11 06:57:34 +00:00
Bruce Evans
82970b81a9 Fixed type of setsid(). It used used the bogus `getsid_args'. 1995-11-11 06:53:08 +00:00
Bruce Evans
b2f9e8b1ee Removed unreachable code.
Changed `#if defined()' back to `#ifdef' to finish removing COMPAT_IBCS2.
1995-11-11 05:49:22 +00:00
Bruce Evans
cf7e5eab8b Fixed types of rtprio(), osetrlimit() and setrlimit(). The args struct
tag and/or member names conflicted with the machine generated ones in
<sys/sysproto.h>.
1995-11-11 01:48:17 +00:00
Bruce Evans
2635f86c68 Fixed types of ogethostid() and osethostid(). The args struct names
conflicted with the machine generated ones in <sys/sysproto.h>.

Fixed type of oquota().  It didn't even use an args struct.
1995-11-11 01:04:42 +00:00
Bruce Evans
ceba6236e0 Fixed type of vfs_free_netcred().
Removed redundant declaration of insmntque().
1995-11-11 00:27:00 +00:00
Bruce Evans
3c8e79dd2b Fixed type of sysctl_order_cmp().
KNFized sysctl_order_cmp().
Staticized definition of kern_sysctl() to match its declaration.
1995-11-11 00:09:21 +00:00
Poul-Henning Kamp
69feb38841 Fix a minor buglet. 1995-11-10 16:22:41 +00:00
Poul-Henning Kamp
6ff1bbebdf convert more sysctl variables. 1995-11-10 09:58:53 +00:00
Poul-Henning Kamp
b8da239623 Make the old compat functions use the sysctl front door, rather than
crashing through the walls.
This should save Peters blood pressure and netscapes uname call.
1995-11-09 20:22:12 +00:00
Bruce Evans
5739bf963a Introduced lkm_nullcmd(), which will be used instead of nosys() in
some places to fix type mismatches.

Added prototypes and bogus casts.
1995-11-09 09:43:32 +00:00
Bruce Evans
f57e65478d Introduced a type `vop_t' for vnode operation functions and used
it 1138 times (:-() in casts and a few more times in declarations.
This change is null for the i386.

The type has to be `typedef int vop_t(void *)' and not `typedef
int vop_t()' because `gcc -Wstrict-prototypes' warns about the
latter.  Since vnode op functions are called with args of different
(struct pointer) types, neither of these function types is any use
for type checking of the arg, so it would be preferable not to use
the complete function type, especially since using the complete
type requires adding 1138 casts to avoid compiler warnings and
another 40+ casts to reverse the function pointer conversions before
calling the functions.
1995-11-09 08:17:23 +00:00
Poul-Henning Kamp
787d58f201 Fix some of the sysctl broke, and add a lot more to it. 1995-11-08 08:48:36 +00:00
John Dyson
5e527f652f This is a modification missed by me in the msync fixes a few days ago. 1995-11-07 05:09:43 +00:00
Poul-Henning Kamp
2e21099372 On working the new sysctl vars a bit I realized that I needed more generality.
This is here now.  We can now access (the new) sysctl variables from the
kernel too and using functions to handle access is more sane now.
I will now attack sysctl variables in the rest of the kernel and get them
all converted to newspeak.
1995-11-06 16:18:52 +00:00
David Greenman
c52007c2cc All:
Changed vnodep -> vp for consistency with the rest of the kernel, and
changed iparams -> imgp for brevity.

kern_exec.c:
   Explicitly initialized some additional parts of the image_params struct
to avoid bzeroing it. Rewrote the set-id code to reduce the number of
logical tests. The rewrite exposed a mostly benign bug in the algorithm:
traced set-id images would get ktracing disabled even if the set-id didn't
happen for other reasons.
1995-11-06 12:52:37 +00:00
Bruce Evans
8b25681eb5 Replaced bogus macros for dummy devswitch entries by functions.
These functions went away:

	enosys (hasn't been used for some time)
	enxio
	enodev
	enoioctl (was used only once, actually for a vop)

if_tun.c:
Continued cleaning up...

conf.h:
Probably fixed the type of d_reset_t.  It is hard to tell the correct
type because there are no non-dummy device reset functions.

Removed last vestige of ambiguous sleep message strings.
1995-11-06 00:36:19 +00:00
John Dyson
4dc4e0d228 Make MNT_ASYNC more effective for UFS. It should not be too much more
dangerous than the original MNT_ASYNC.  There might be some minor
security considerations due to data writes not being posted as promptly
as before.  Meta-data operations are still not quite as fast as Linux,
but streaming I/O is still higher.
1995-11-05 21:01:15 +00:00
John Dyson
aef922f514 Greatly simplify the msync code. Eliminate complications in vm_pageout
for msyncing.  Remove a bug that manifests itself primarily on NFS
(the dirty range on the buffers is not set on msync.)
1995-11-05 20:46:03 +00:00
Bruce Evans
286f8561e2 Replaced bogus macros for entry points to unconfigured line disciplines
by functions.

tty_conf.c:
Cleaned up formatting of tables.

Removed another ARGSUSED for consistency.

conf.h:
Introduced typedefs for line discipline functions.

Backed out most of previous revision (it is done elsewhere).
1995-11-05 20:25:59 +00:00
Bruce Evans
4fda91c705 Moved prototypes for devswitch functions from conf.c and driver sources
to <machine/conf.h>.  conf.h was mechanically generated by
`grep ^d_ conf.c >conf.h'.  This accounts for part of its ugliness.  The
prototypes should be moved back to the driver sources when the functions
are staticalized.
1995-11-04 13:25:33 +00:00
David Greenman
3956a1702c Return EINVAL if the number of groups is less than 1 in setgroups().
Obtained from:	4.4BSD-Lite2
1995-11-04 10:50:55 +00:00
Bruce Evans
046bc05396 Prototype getvnode() in the right place (where ibcs2_stat.c can see it). 1995-11-04 10:35:26 +00:00
Garrett Wollman
ff5c09da20 Make somaxconn (maximum backlog in a listen(2) request) and sb_max
(maximum size of a socket buffer) tunable.

Permit callers of listen(2) to specify a negative backlog, which
is translated into somaxconn.  Previously, a negative backlog was
silently translated into 0.
1995-11-03 18:33:46 +00:00
Peter Wemm
0839e0de72 Make putc and b_to_q deal with clists with no reserved blocks in a more
civilised manner than panicing.  This only happens as a result of another
state botch somewhere else, eg: from a tty driver calling putc or b_to_q
on a closed device.  Apparently, it's also been implicated in a panic
with a status (^T) event on ptys.

This change should pretty well be in it's final form now.
1995-11-02 08:37:22 +00:00
Peter Wemm
a317bc2c36 Clean up the previous commit I did on this file.
The Jury has not reached a verdict yet on this approach - a better fix
may be thought of, but for now this works.
1995-11-01 15:59:55 +00:00
Bruce Evans
bb1140a9a5 Fixed initialization of TS_CONNECTED bit in t_state. It wasn't
set in open() when CLOCAL is set unless carrier is present.

Fixed initialization of line discipline.  It lived across opens.
Lines that started with the wrong discipline probably didn't work
at all, because TS_ISOPEN is only set by TTYDISC.
1995-10-31 19:27:50 +00:00
Peter Wemm
e8c8f201ec Make a putc()/b_to_q() to a clist that hasn't had cblocks reserved
non-fatal.  I've make it return an appropriate error to the caller instead
of panic()ing.

Handling an error condition is inherently more friendly than exploding
the kernel.. :-)  The new behavior is a little closer to traditional
clists, potentially making porting a little simpler.

Suggested by: bde (many months ago, I've been using this for a while..)
1995-10-31 19:00:00 +00:00
Bruce Evans
7a6e2e527b Removed an annoying redundant declaration that I added in the previous
revision.
1995-10-30 17:16:55 +00:00
Poul-Henning Kamp
a98ca4699e Second batch of cleanup changes.
This time mostly making a lot of things static and some unused
variables here and there.
1995-10-29 15:33:36 +00:00
Poul-Henning Kamp
4ccc87c594 Remove unused functions and variables, make things static, and other cleanups. 1995-10-28 15:39:31 +00:00
Poul-Henning Kamp
3a34a5c3b8 Sorry, the last commit screwed up for me, this is the right one (I hope!)
Please refer to the previous commit message about sysctl variables.
1995-10-28 13:07:28 +00:00
Poul-Henning Kamp
b396cd832c Rewamp the way we make sysctl variables to be easier to cope with.
The goal is to make them "user-friendly" :-)

In the end this will allow a SNMP style "getnext" function, sysctl editing
in the boot-editor and/or debugger, LKMs can define sysctl vars when
they get loaded, and remove them when unloaded and other interesting
uses for dynamic sysctl variables.
1995-10-28 12:59:25 +00:00
Bruce Evans
e887950a45 Call vfs_unbusy() before error returns from sysctl_vnode(). This fixes
PR 795.

Set the size before one error return from sysctl_vnode() the same as before
the other.  The caller might want to know about the amount successfully
read although the current caller doesn't.
1995-10-28 08:50:08 +00:00
Bruce Evans
e2f15ca546 Fixed data loss in writes to pty masters. Data was almost always lost
at the end of each write for writes of more than 1K.

Fixed handling of residual count for early returns in writes to pty masters.
It was only adjusted in 2 out of 6 cases.

Added prototypes.
1995-10-25 18:23:58 +00:00
Bruce Evans
12bc45a8df Fix clist limits. They were usually one too low. E.g., for a limit of
TTYHOG = 1024 bytes, 10 cblocks were reserved.  This was thought to
provide 10 * CBSIZE = 1080 bytes of buffering, but if the head pointer
is at the end of a cblock, then it only provides 1 + 9 * CBSIZE = 973
bytes of buffering.  This caused serious data loss for ptys because the
flow control is deterministic and requires at least TTYHOG bytes of
buffering.  For ttys, if input flow control is used then there is
usually enough slop in the high watermark to avoid problems, and if
input flow control isn't used then a limit of 973 is not much different
from a limit of 1024.

Add prototypes.

Continue cleaning up new init stuff.
1995-10-25 17:59:58 +00:00
Steven Wallace
f23c6d682b Remove COMPAT_IBCS2 option.
Ibcs2 emulator no longer depends on owait() or any other hack to wait4().
1995-10-23 19:44:38 +00:00
Bruce Evans
8159bae9d0 Fix a sign extension bug that was unleashed by the previous change.
The total process time was sometimes 2^32 usec too large but that
wasn't a problem before because the time was bogusly truncated mod
2^32.
1995-10-23 19:05:50 +00:00
Bruce Evans
5fdb832498 Simplify the pseudo-argument removal changes by not optimizing for
the !COMPAT_43 case - use a common function even when there is no
`old' function.  The diffs for this are large because of code motion
to restore the function order to what it was before the pseudo-argument
changes.

Include <sys/sysproto.h> to get correct args structs and prototypes.
The diffs for this are large because the declarations of the args structs
were moved to become comments in the function headers.  The comments may
actually match the automatically generated declarations right now.

Add prototypes.
1995-10-23 15:42:12 +00:00
John Dyson
cd0402ec7a Interface change for the VOP_GETPAGES -- missed in previous commits. 1995-10-23 02:55:55 +00:00
David Greenman
d68a41903e Moved the filesystem read-only check out of the syscalls and into the
filesystem layer, as was done in lite-2. Merged in some other cosmetic
changes while I was at it. Rewrote most of msdosfs_access() to be more
like ufs_access() and to include the FS read-only check.

Obtained from: partially from 4.4BSD-lite2
1995-10-22 09:32:48 +00:00
Bruce Evans
725db531b8 Start including <sys/sysproto.h> to get the correct args structs and
prototypes for all syscalls.  The args structs are still declared in
comments as in VOP implementation functions.  I don't like the
duplication for this, but several more layers of changes are required
to get it right.  First we need to catch up with 4.4lite2, which uses
macros to handle struct padding.  Then we need to catch up with NetBSD,
which passes the args correctly (as void *).  Then we need to handle
varargs functions and struct padding better.  I think all the details
can be hidden in machine-generated functions so that the args structs
and verbose macros to reference them don't have to appear in the core
sources.

Add prototypes.

Add bogus casts to hide the evil type puns exposed by the previous
steps.  &uap[1] was used to get at the args after the first.  This
worked because only the first arg in *uap was declared.  This broke
when the machine- genenerated args struct declared all the args
(actually it declares extra args in some cases and depends on the
user stack having some accessible junk after the last arg, not to
mention the user args being on the stack.  It isn't possible to
declare a correct args struct for a varargs syscall).  The msgsys(),
semsys() and shmsys() syscall interfaces are BAD because they
multiplex several syscalls that have different types of args.
There was no reason to duplicate this sysv braindamage but now
we're stuck with it.  NetBSD has reimplemented the syscalls properly
as separate syscalls #220-231.

Declare static functions as static in both their prototype and their
implementation (the latter is optional, and this misfeature was used).

Remove gratuitous #includes.

Continue cleaning up new init stuff.
1995-10-21 19:50:00 +00:00
Bruce Evans
bcee717be5 Avoid overflow in calcru(). Fixes PR 788.
Submitted by:	imdave@synet.net (Dave Bodenstab)
1995-10-21 09:18:45 +00:00
David Greenman
079cc25b11 Killed a few gratuitous #include's. 1995-10-21 08:38:13 +00:00
John Dyson
6d875bf526 If we clear the B_CACHE flag because a buffer isn't composed fully of
valid bytes, we must also clear the B_DONE flag.  Some filesystems
depend on this (incl NFS) and is probably the cause of the biodone
error and subsequent crash.  Anyway this change needs to be made.
1995-10-19 23:48:25 +00:00
Steven Wallace
1e41c1b5d5 Implement SA_NODEFER sa_flag for sigaction():
Add SA_NODEFER define to signal.h
	Add ps_nodefer field to struct sigacts in signalvar.h.
	Add code to kern_sig.c to handle SA_NODEFER.

If flag is set, when the signal is delivered, it is not masked automatically
from receiving the same signal again.

Reviewed by:	 wollman, bde
1995-10-19 19:16:01 +00:00
Garrett Wollman
07e3b0c25b Improve clock accuracy by accounting for late/missed clock interrupts
if the hardware supports it.
1995-10-12 20:35:01 +00:00
Steven Wallace
88c94611b1 Remove the '1' from getpeername1 and getsockname1 when NOT COMPAT_OLDSOCK.
Left it in there by mistake.
1995-10-11 06:09:45 +00:00
Steven Wallace
c3e5be204b Remove the ugly COMPAT_IBCS2 hack to hide a return value through
magic numbers.  The new socksys support does not need this hack.

I am against any magic practicing.
1995-10-10 08:08:54 +00:00
Bruce Evans
029b0fc88f Fix tracing of syscalls. The previous fix required the undocumented
option DDB_NO_LCALLS to stop ddb getting control and broke all ddb
tracing.  Now there is no option and no way for ddb to trace at
address _Xsyscall or to _Xsyscall, but tracing everywhere else
works.  The previous fix did unnecessary things for Linux syscalls.

Don't bother checking that syscall frames are for user mode.

Make debugger traps inside the kernel (except at addresses _Xsyscall
and _Xsyscall+1) fatal if ddb is not configured.  They "can't happen".

Add prototypes.

Remove stupid comments, e.g., /*ARGSUSED*/ for args that are used.
1995-10-09 04:36:01 +00:00
John Dyson
f4a73b85ed Work-around a problem in the clustering code on non-VMIO buffers. The
write-side needs rewriting, but this makes a ktrace panic go away for
now.
1995-10-09 03:19:49 +00:00
Steven Wallace
ad7507e248 Remove prototype definitions from <sys/systm.h>.
Prototypes are located in <sys/sysproto.h>.

Add appropriate #include <sys/sysproto.h> to files that needed
protos from systm.h.

Add structure definitions to appropriate files that relied on sys/systm.h,
right before system call definition, as in the rest of the kernel source.

In kern_prot.c, instead of using the dummy structure "args", create
individual dummy structures named <syscall>_args.  This makes
life easier for prototype generation.
1995-10-08 00:06:22 +00:00
Steven Wallace
a932a33de3 Fix misc formatting errors in makesyscalls.sh.
Add CPT_NOA type which is COMPAT with NOARGS -- do not produce argument
struct in sysproto.

Change accept, recvfrom, getsockname to CPT_NOA type.
Fix getrlimit, setrlimit argument #2 name to struct rlimit.
1995-10-07 23:56:20 +00:00
Steven Wallace
93c9414e49 Remove compat_43 psuedo-argument hack, and replace with a better hack.
Instead of using a fake "compat" argument, pass a real compat int to function
if COMPAT_43 is defined.  Functions involved: wait4, accept, recvfrom,
getsockname.

With the compat psuedo-argument, this introduces an argument structure
that can have two possible sizes depending on compat options.
This makes life difficult for lkm modules like ibcs2, which would
have to guess what size used in kernel when compiled.  Also,
the prototype generator for these structures cannot generate proper sizes.

Now there is only one fixed structure and makes everybody happy.

I recommend these changes be introduced to 2.1 so that ibcs2, linux
lkm's generated for 2.2 can still run on a 2.1 kernel.
1995-10-07 23:47:26 +00:00
Steven Wallace
4887ee51b2 Remake generated files to reflect makesyscalls.sh changes 1995-10-07 06:29:30 +00:00
Steven Wallace
f171307e84 Add new functionality to makesyscalls.sh:
o  optional config-file to set vars: sysnames, sysproto, sysproto_h,
	syshdr, syssw, syshide, syscallprefix, switchname, namesname, sysvec.
  o  change syntax of syscalls.master entry:
	remove argument count.
	add pseudo-prototype field defining function name and arguments.
  o  generates correct structure definitions for all system calls
	in sys/sysproto.h
  o  add type NOARGS:  same as STD except do not create structure in
	sys/sysproto.h
  o  add type NOPROTO:  same as STD except do not create structure or function
	prototype in sys/sysproto.h

New functionality provides complete prototype definitions.
Usefull for generating files for emulated systems like my new ibcs2 code.

Update syscalls.master to reflect new changes.  For example, read()
entry now looks like:

3	STD	POSIX	{ int ibcs2_read(int fd, char *buf, u_int nbytes); }

This is similar to how NetBSD generates these files.
1995-10-07 06:24:08 +00:00
Poul-Henning Kamp
e83e1865c0 A little hack to avoid a 64bit divide. Can go away if Gcc ever learns to
optimise 64bit stuff...
1995-10-06 09:43:32 +00:00
Julian Elischer
4c1a35b2a6 fix REALLY STUPID bug/typo
don't look at the diffs.. it's too embarassing :)
1995-10-04 08:58:00 +00:00
Julian Elischer
00c6cadad3 Submitted by: Juergen Lock <nox@jelal.hb.north.de>
Obtained from: other people on the net ?

1. stepping over syscalls (gdb ni) sends you to DDB, and returned
to the wrong address afterwards, with or without DDB.  patch in
i386/i386/trap.c below.

2. the linux emulator (modload'ed) still causes panics with DIAGNOSTIC,
re-applied a patch posted to one of the lists...
1995-10-04 07:08:04 +00:00
Julian Elischer
d8af1be3d9 add the file kern_conf.c so it can be compiled in when needed
for testing.. (for cdevsw_add and bdevsw_add)

make the lkm code use the new generic devsw add routines (if so required)
1995-10-04 03:42:39 +00:00
Julian Elischer
f8a760b32a actually compiles.. (previous commit was to just get it into the tree) 1995-10-02 10:15:40 +00:00
Julian Elischer
26453f354f Obtained from: well it has a relationship with the LKM code..
This is a place for all things to do with conf.c and conf.h
that are not machine specific.
Other things that are at present in i386/isa/conf.c might
migrate into here..
It's the first small step in cleaning up the device interface
to make it more dynamic and to assist in more modular drivers
(i.e. both loadable via LKMs and linked in..
e.g able to add a device without having to edit conf.c)

this code is not yet used and the whole thing will be conditionally
compiled in for a while till proven useful :)
1995-10-02 09:24:44 +00:00
David Greenman
7329854ac4 Two critical bugfixes:
1) "obj" was't initialized properly, resulting in an important vm_page_lookup
   always failing (resulting in a panic).
2) busy pages could be put on the cache queue or freed (resulting in a panic).
1995-10-01 05:50:27 +00:00
John Dyson
164fd96f34 These changes fix a bug in the clustering code that I made worse when adding
support for EXT2FS.  Note that the Sig-11 problems appear to be caused by
this, but there is still probably an underlying VM problem that let this
clustering bug cause vnode objects to appear to be corrupted.

The direct manifestation of this bug would have been severely mis-read
files.  It is possible that processes would Sig-11 on very damaged
input files and might explain the mysterious differences in system
behaviour when phk's malloc is being used.
1995-09-23 21:12:45 +00:00
Bruce Evans
c1b0bf4649 Update machine-generated files. 1995-09-19 13:56:09 +00:00
Bruce Evans
d60a9ca6ab Oops. Avoid literal $Id in an awk string to stop cvs from substituting it. 1995-09-19 13:50:26 +00:00
Bruce Evans
3cb43dbdaf Generate prototypes for syscall-implementing functions. Put them in
<sys/sysproto.h> and use them (so far only) in kern/init_sysent.c.

Don't put $Id in generated files.

kern/syscalls.master:
I had to add some new fields to describe some non-orthogonal names.
E.g., the args struct for the syscall-implementing function foo()
is usually named `foo_args', but for getpid() it is named `args'.

sys/sysent.h:
sy_call_t is still incomplete to hide a couple of warnings.
1995-09-19 13:31:04 +00:00
Bruce Evans
04cc52dfc3 Don't clear the session pointer in ptcclose(). It must be left alone
until the session leader exits so that a SIGHUP gets sent to the process
group and the pty slave gets revoked.
1995-09-19 12:26:47 +00:00
Bruce Evans
191e1a59da Remove transitory labelling code. Labels are now handled by essentially
the original 4.4lite code.  Machine Specific Partitions are now handled
separately.
1995-09-16 17:04:06 +00:00
Bruce Evans
5e3e8d2b88 Generate prototypes for VOP functions. I decided to keep the old-style
definitions even though the functions are inline.  If vnode_if.h was
compiled by a non-ANSI compiler, then `inline' would be defined away,
so vnode_if.h might compile correctly.
1995-09-11 16:05:16 +00:00
Bruce Evans
e7451974bb Make pcvt and syscons live in the same kernel. If both are enabled, then
the first one in the config has priority.  They can be switched using
userconfig().

i386/i386/conf.c:
Initialize the shared syscons/pcvt cdevsw entry to `nx'.

Add cdevsw registration functions.

Use devsw functions of the correct type if they exist.

i386/i386/cons.c:
Add renamed syscons entry points to constab.

i386/i386/cons.h:
Declare the renamed syscons entry points.

i386/i386/machdep.c:
Repeat console initialization after userconfig() in case the current
console has become wrong.  This depends on cn functions not wiring down
anything important.

sys/conf.h:
Declare new functions.

i386/isa/isa.[ch]:
Add a function to decide which display driver has priority.  Should be
done better.

i386/isa/syscons.c:
Rename pccn* -> sccn*.

Initialize CRTC start address in case the previous driver has moved it.

i386/isa/syscons.c, i386/isa/pcvt/*
Initialize the bogusly shared variable Crtat dynamically in case the
stored value was changed by the previous driver.

Initialize cdevsw table from a template.

Don't grab the console if another display driver has priority.

i386/isa/syscons.h, i386/isa/pcvt/pcvt_hdr.h:
Don't externally declare now-static cdevsw functions.

i386/isa/pcvt/pcvt_hdr.h:
Set the sensitive hardware flag so that pcvt doesn't always have lower
priority than syscons.  This also fixes the "stupid" detection of the
display after filling the display with text.

i386/isa/pcvt/pcvt_out.c:
Don't be confused the off-screen cursor offset 0xffff set by syscons.

kern/subr_xxx.c:
Add enough nxio/nodev/null devsw functions of the correct type for syscons
and pcvt.
1995-09-10 21:36:12 +00:00
Bruce Evans
f2cb5630d0 cons.c:
Split off cdevsw initialization in cninit() into a new function
cninit_finish() that isn't called until all hardware device drivers
have been attached.  The bdevsw entry of the driver for the physical
console needs to be hooked after the physical driver has been
attached in case the attachment modified the entry.

Rearrange cninit() to avoid changing cn_tab until the driver for the
physical console has been initialized, so that the previous driver
(if any) can be used for debugging.

Start removing half-baked lint support.  bdevsw functions usually have
unused args but /*ARGSUSED*/ was used for only about 5% of them.

cons.h:
Declare cn_init_finish().

autoconf.c:
Call cn_init_finish().

Start adding prototypes.  Functions with bogus linkage (extern where
static is probably should be static) are explicitly declared as extern
so that the can be found easily (extern in a non-header is usually
wrong).

All:
Continue cleaning up init stuff: init functions shall be static;
INITs should be at the start of files...
1995-09-10 18:57:26 +00:00
Bruce Evans
e7c89b42c5 Fix wakeups for TIOCDRAINWAIT. The conditional wakeups introduced in rev
1.59 defeated the point of doing the wakeups (having reduced timeouts
take effect immediately).
1995-09-10 11:48:13 +00:00
David Greenman
4590fd3a2a Fixed init functions argument type - caddr_t -> void *. Fixed a couple of
compiler warnings.
1995-09-09 18:10:37 +00:00
David Greenman
1984b014a0 Fix my copyright. 1995-09-08 13:24:33 +00:00
Bruce Evans
6003967057 Fix benign type mismatches in devsw functions. 82 out of 299 devsw
functions were wrong.
1995-09-08 11:09:15 +00:00
Nate Williams
4756154a9e Removed unused local variable from shutdown_nice() 1995-09-06 15:23:20 +00:00
John Dyson
c83ebe7781 Added VOP_GETPAGES/VOP_PUTPAGES and also the "backwards" block count
for VOP_BMAP.  Updated affected filesystems...
1995-09-04 00:21:16 +00:00
John Dyson
41db6f5f99 VOP_BMAP will eventually need an additional argument, but not yet. This
backs out that modification to minimize the window during which this
is not yet correct.
1995-09-03 20:32:52 +00:00
John Dyson
8c601f7da8 Improvements to the cluster code, minor vfs_bio efficiency:
Better performance -- more aggressive read-ahead
	under certain circumstanses.

	Mods to support clustering on small
	( < PAGE_SIZE) block size filesystems (e.g. ext2fs,
	msdosfs.)
1995-09-03 19:56:15 +00:00
Julian Elischer
8af5d536ff devfs changes..
changes to allow devices that don't probe (e.g. /dev/mem)
to create devfs entries
this required giving 'configure' its own SYSINIT entry
so we could duck in just before it with a DEVFS init
and some device inits..
my devfs now looks like:
./misc
./misc/speaker
./misc/mem
./misc/kmem
./misc/null
./misc/zero
./misc/io
./misc/console
./misc/pcaudio
./misc/pcaudioctl
./disks
./disks/rfloppy
./disks/rfloppy/fd0.1440
./disks/rfloppy/fd1.1200
./disks/floppy
./disks/floppy/fd0.1440
./disks/floppy/fd1.1200
also some sligt cleanups.. DEVFS needs a lot of work
but I'm getting back to it..
1995-09-03 05:43:50 +00:00
John Dyson
5dce41c5a5 Increase the size of the pipe buffer as denoted by PIPSIZ from
4k to 8k.  This has a significant effect on the pipe performance.  In
the future it might be good to increase this to 16k.  PIPSIZ is now
tunable for experimentation.
1995-08-31 01:39:31 +00:00
Bruce Evans
088f73968c Fix several sysinit functions that had the wrong type and unnecessarily
external linkage.

Remove useless comments saying that SYSINIT() does system initialization.

shm.c:
Remove nearly useless comment that gave wrong pseudo-prototypes.
1995-08-30 00:33:02 +00:00
Bruce Evans
41a93c86d6 Fix benign type mismatch in a sysinit function arg. 1995-08-30 00:17:18 +00:00
Bruce Evans
9ef6c28ae2 Fix benign type mismatches and nested extern declarations in new sysinit
code.

Fix old and new missing prototypes.
1995-08-29 23:59:22 +00:00
Bruce Evans
5c7761b2af kmstartup had the wrong type and unnecessarily external linkage for a
sysinit function.

subr_prof.c:
Remove useless comment.
1995-08-29 03:09:14 +00:00
Bruce Evans
4bb0ce8ce3 Fix correct_writedisklabel() and writedisklabel(). Their setting of
bp->b_flags has been broken for many years:
a) they didn't set B_BUSY for doing i/o.  This has been fatal since
   1995/07/25 when biodone() started checking that B_BUSY is set.
b) they didn't set B_INVAL for releasing the buffer.  This at best
   just put a useless buffer in the LRU queue for a little while.

Fix a couple of spelling errors and complete a couple of function
pointer declarations.
1995-08-28 16:09:11 +00:00
Julian Elischer
2b14f991e6 Reviewed by: julian with quick glances by bruce and others
Submitted by:	terry (terry lambert)
This is  a composite of 3 patch sets submitted by terry.
they are:
New low-level init code that supports loadbal modules better
some cleanups in the namei code to help terry in 16-bit character support
some changes to the mount-root code to make it a little more
modular..

NOTE: mounting root off cdrom or NFS MIGHT be broken as I haven't been able
to test those cases..

certainly mounting root of disk still works just fine..
mfs should work but is untested. (tomorrows task)

The low level init stuff includes a total rewrite of init_main.c
to make it possible for new modules to have an init phase by simply
adding an entry to a TEXT_SET (or is it DATA_SET) list. thus a new module can
be added to the kernel without editing any other files other than the
'files' file.
1995-08-28 09:19:25 +00:00
Bruce Evans
430179f0c3 Don't compile the diagnostic functions vhold() and holdrele() unless
DIAGNOSTIC is defined.
1995-08-25 20:49:44 +00:00
Bruce Evans
5e319b84a1 Remove extra arg from one of the calls to (*pr_usrreq)(). 1995-08-25 20:27:46 +00:00
Bruce Evans
e3546115f3 Call nosys() from lkmnosys() with the correct number and type of args
instead of with none.  The first (struct proc *) arg is used if lkmnosys()
if is actually called.

Implement lkmnosys() with the correct number and type of args so that
the first of them can be used and the others won't need to be fixed
lated.
1995-08-25 20:03:02 +00:00
David Greenman
9f95e53cff Another minor optimization, this time to incore(). 1995-08-24 13:59:14 +00:00
David Greenman
ff3aaf2582 Minor optimization. 1995-08-24 13:28:16 +00:00
David Greenman
229296b0cf Killed some gratuitous #include's. 1995-08-24 12:54:11 +00:00
David Greenman
c0e5de7d88 Moved setting of VTEXT flag into the appropriate image activators. This
fixes a bug where linux binaries would get the flag set inappropriately.
1995-08-24 10:32:37 +00:00
Doug Rabson
27df97742b Add support for amd direct maps.
Reviewed by:	Thomas Graichen <graichen@sirius.physik.fu-berlin.de>
1995-08-24 10:17:39 +00:00
Jordan K. Hubbard
215b0e62d5 Don't clip d_ncylinders to value used by partitions. 1995-08-23 11:43:45 +00:00
Jordan K. Hubbard
b8ef36f62e Properly initialize the d_ncylinders field to the maximum number of
cylinders.
1995-08-23 10:41:57 +00:00
David Greenman
4219d2b2ac A couple of micro optimizations to improve NULL syscall performance by
about 2%.
1995-08-21 18:06:48 +00:00
David Greenman
cd92a6182d Call boot() instead of cpu_reset() if init isn't running in shutdown_nice. 1995-08-20 04:42:25 +00:00
Bruce Evans
cf2455a3ec The cred' and proc' args were missing for some VOP_OPEN() and VOP_CLOSE()
calls.

Found by: gcc -Wstrict-prototypes after I supplied some of the 5000+
missing prototypes.  Now I have 9000+ lines of warnings and errors
about bogus conversions of function pointers.
1995-08-17 11:53:51 +00:00
Bruce Evans
bf25be48a5 Make everything except the unsupported network sources compile cleanly
with -Wnested-externs.
1995-08-16 16:14:28 +00:00
David Greenman
628641f8a6 Converted mountlist to a CIRCLEQ.
Partially obtained from: 4.4BSD-Lite2
1995-08-11 11:31:18 +00:00
David Greenman
b4c196550c Move mbuf frees to after call to sorflush().
Submitted by:	Matt Dillon
1995-08-08 02:22:16 +00:00
David Greenman
74ca9fa64f On closer inspection, it turns out that all of the callers of disksort
are already at splbio()...so back out the last change to disksort.
1995-08-07 14:20:27 +00:00
David Greenman
5d210d3fd4 Since buffers can be pulled off of the disk queue at interrupt time and
disksort is called at non-interrupt time and can be actively traversing
the list when that happens, there is a very small window of vulnerability.
Close it by protecting disksort with splbio().
1995-08-07 11:55:32 +00:00
David Greenman
b4224c9c6c Woops, I committed the wrong version of the diff in the last rev. 1995-08-07 08:40:49 +00:00
David Greenman
6c8897cf98 Made msgbuf range checking more robust and clean. 1995-08-07 07:58:23 +00:00
David Greenman
02d5c7b197 Restore check for msg_bufx being negative. Changed if() expression to be
in Lite2 style.
1995-08-06 22:00:17 +00:00
Joerg Wunsch
352abcd4a7 Extentd David's recent change to shutdown_nice() by calling
cpu_reset() directly in case init(8) is *not* running.
1995-08-06 19:45:34 +00:00
David Greenman
d63abe4172 Resize both VMIO and non-VMIO buffers if the size changes. 1995-08-06 12:10:39 +00:00
Andrey A. Chernov
e581051d3d Preserve current termios speed for TIOCSET*, if it matched with
nearest valid. It means that gtty+stty transaction (without speed
change) not breaks non-standard speeds now.
1995-08-02 12:53:14 +00:00
Andrey A. Chernov
4e5f73581c Better approximation for TIOCGETP (gtty) for non-standard speeds.
Old variant returns 38400 for them, now it returns nearest matched
rounded down, expect speeds in range 0 > speed < 50 rounded up
to not produce hangup.
1995-08-02 12:03:12 +00:00
Andrey A. Chernov
29ae13ad3c Back out predefined termios speeds check, it can cause troubles
with interaction pty <-> serial driver with non-standard speed.
So, nothing protect us from garbadge in speed field, expect
checking for < 0 left in tty.c :-(
1995-08-02 11:26:50 +00:00
Andrey A. Chernov
af2a00bbbc Check for valid speed values in pty drive
Check for negative speed values in tty drive
Back out valid speed values checking from tty drive
Suggested by: bde
1995-08-02 06:55:36 +00:00
Bruce Evans
76107ba3af Don't set TS_ZOMBIE flag for non-open ptys. ptcclose() has always done
too much for non-open ptys, but there is normally no problem because the
l_modem(, 0) is a no-op for closed ptys provided the line discipline is
standard and MDMBUF isn't set.
1995-08-02 02:55:47 +00:00
Andrey A. Chernov
271381b3b8 Optimize a bit valid speed search using fact that speed table sorted
Submitted by:
Obtained from:
1995-08-01 23:38:00 +00:00
Andrey A. Chernov
7a82fc7855 Check for valid speeds in TIOCSET* and return EINVAL for incorrect
values instead of setting garbadge.
1995-08-01 23:27:36 +00:00
David Greenman
4777741358 Removed my special-case hack for VOP_LINK and fixed the problem with the
wrong vp's ops vector being used by changing the VOP_LINK's argument order.
The special-case hack doesn't go far enough and breaks the generic
bypass routine used in some non-leaf filesystems. Pointed out by Kirk
McKusick.
1995-08-01 18:51:02 +00:00
Bruce Evans
19829865ca Obtained from: partly from ancient patches of mine via 1.1.5
Change all short variables in `struct tty' to int.  Shorts were only
right on ancient systems with ints optimized for vaxness over
efficiency.
1995-07-31 22:50:08 +00:00
Bruce Evans
35b46c174c Obtained from: partly from ancient patches of mine via 1.1.5
Handle MDMBUF a little better.  Prepare to handle 4 different kinds of
output flow control.
1995-07-31 22:48:46 +00:00
Bruce Evans
f91307e23d Obtained from: an ancient patch of mine via 1.1.5
Clear PENDIN when input is flushed so that the handling of future input
doesn't get pessimized.
1995-07-31 21:43:37 +00:00