Commit Graph

157 Commits

Author SHA1 Message Date
Marcel Moolenaar
42035021f5 Implement linux_vfork() syscall by calling vfork(). Analogous to the
linux_fork() implementation.
1999-08-16 11:49:30 +00:00
Marcel Moolenaar
a171f5adb6 Provide wrappers for sched_{s|g}etscheduler. We need to convert the policy
argument.

PR: 12006
Originator: Jean-Claude MICHOT <jcmichot@teaser.fr>
1999-08-15 17:28:40 +00:00
Marcel Moolenaar
dc6f939870 Fix bug in the fcntl syscall where 'arg' was not set properly.
PR: 12147
Submitted by: Allan Saddi <asaddi@philosophysw.com>
1999-08-15 14:22:30 +00:00
Marcel Moolenaar
20c661befb Include opt_compat.h so that COMPAT_43 is defined. This gives us the proper
prototypes of o{s|g}etrlimit (from sys/sysproto.h). Update linux_{s|g}etrlimit
so that the arguments to o{s|g}etrlimit are corresponding the prototypes.

Pointed out by: bde
1999-08-15 13:28:35 +00:00
Marcel Moolenaar
81d960fa6d Implementation of the linux_getcwd syscall. 1999-08-14 18:20:44 +00:00
Marcel Moolenaar
06ebbe77ed Implementation of linux_rt_sigaction and linux_rt_sigprocmask syscalls. Both
functions use the new sigset_t and sigaction_t which allows support for more
than 32 signals. Only the lower 32 signals are supported for now.

linux_rt_sigaction, linux_sigaction and linux_signal use linux_do_sigaction
to do the actual work. That way unnecessary redundancy is avoided. The same
has been done for linux_rt_sigprocmask and linux_sigprocmask. They call
linux_do_sigprocmask to do the actual work.
1999-08-14 17:28:46 +00:00
Marcel Moolenaar
3bde119b1e Fix LINUX_TIOC{S|G}SERIAL implementation. Both do not copy data in or out
of kernel space. Remove the ioctl supporting functions, and move the actual
code to the switch-statement. Now everybody can clearly see that the
implementation is really poor.

Also fix a typo in LINUX_TIOCGETD. The underlying function was given command
TIOCSETD instead op TIOCGETD...
1999-08-14 13:26:44 +00:00
Mark Newton
5462f43fb0 Avoid possible panic by checking for EFAULT from copyinstr() during
pathname translation.

Submitted by:	green
1999-08-14 10:52:33 +00:00
Marcel Moolenaar
86cfb28d8d Fix the LINUX_TCSET{A|AW|AF} and LINUX_TCSET{S|SW|SF} ioctls. These all suffer
from the same bug in that the argument is not first copied from user space
before it is used. This is part 2 (of 2) of the termios fixes.
1999-08-14 10:30:38 +00:00
Marcel Moolenaar
432d528c8d Fix a couple of termio/termios conversion bugs/typos/dupos/brainos and other
changes. This is part 1 of the complete termios ioctl fixes.

o  change type of c_{i|o|c|l}flag in struct termios from unsigned long to
   unsigned int. The type now matches the Linux definitions.
o  replaced constants by the corresponding defines in sptab[] for clarity.
   Since there's no define for 135 baud, its mapping has been dropped.

function bsd_to_linux_termios:
o  Fix typo IXON -> IXANY.
o  Remove bogus assignment to c_cc[LINUX_VSWTC].

function linux_to_bsd_termios:
o  Fix dupo LINUX_IXON -> LINUX_IXANY.
o  Add LINUX_CREAD mapping.
o  Fix typo IEXTEN -> LINUX_IEXTEN.

function linux_to_bsd_termio:
o  Small optimization: Don't preset the complete c_cc array when we next
   assign to the first LINUX_NCC entries.
1999-08-14 10:05:50 +00:00
Marcel Moolenaar
7636612d50 Implementation of the CDROMSUBCHNL ioctl. 1999-08-13 14:44:13 +00:00
Marcel Moolenaar
0839a7e83d In doing lock type conversion (struct flock), make sure that carbage in results
in deterministic behaviour. In this case known garbage out.
The fix is different than suggested in the PR.

PR: 12749
Originator: Boris Nikolaus <boris@cs.tu-berlin.de>
1999-08-13 09:27:54 +00:00
Marcel Moolenaar
00d3c51669 Use a wrapper for the link syscall that does name translations.
PR: 12749
Submitted by: Boris Nikolaus <boris@cs.tu-berlin.de>
1999-08-12 19:53:33 +00:00
Marcel Moolenaar
175db64b3e Do not map {s|g}etrlimit onto FreeBSD syscalls. The arguments don't match.
The linux syscalls translate the arguments first before invoking the
FreeBSD native syscalls.

PR: kern/9591
Originator: John Plevyak <jplevyak@inktomi.com>
1999-08-11 13:34:31 +00:00
Marcel Moolenaar
6a6ea79ac8 Fix page fault in linux_uselib syscall.
PR: 12910
Submitted by: Peter Holm <peter@holm.cc>
1999-08-08 11:26:46 +00:00
Brian Feldman
942fd180df We don't end up checking for a return value of EFAULT from the copyinstr()
in the pathname translation procedure. This proves fatal, and can be
easily fixed. This or a similar change needs to be committed to svr4_util.h
and ibcs2_util.h. I will update ibcs2_util.h, if noone else thinks of a
better way to do this, in the same manner. I will leave svr4 to the
respective maintainer.

This closes the problem of the only crash I've been able to produce as
a user recently, except for (currently not-in-the-source tree) fd
table sharing fixes. Thanks goes to pho for his stress-testers.
1999-08-07 05:33:35 +00:00
Mark Newton
275d27d822 Previous commit also removed some 'const' qualifiers on args for
svr4_sys_sendto() which probably shouldn't have been 'const'.
1999-07-30 13:44:43 +00:00
Mark Newton
c8f2ce34ac Previous commit also finished cleaning up some dev_t -> udev_t transformations
related to the commit for rev 1.3 of svr4_stat.c.
svr4_sysvec.c also received a copyright message (which is why it grew by
28 lines).
1999-07-30 13:42:56 +00:00
Mark Newton
f46f4cccb8 Fix svr4_sys_poll(); SysV STREAMS produce return values from poll() which
BSD sockets don't.  Guess at a correct emulation for those values (it seems
to work for telnet, ftp and friends)
1999-07-30 13:12:26 +00:00
Mark Newton
587297dc40 Add $Id$ tags 1999-07-30 12:45:21 +00:00
Mark Newton
6ef6864f94 Fix panic caused when *stat64() family of syscalls try to fill-in
their svr4_stat64 structures with old dev_t values instead of udev_t's.
Panic was caused when major() and minor() were called with args which
weren't pointers.  The panic was probably introduced in rev 1.51 of
kern_conf.c
1999-07-30 12:43:30 +00:00
Poul-Henning Kamp
684adedee4 Use the vn_todev() function, rather than VOP_GETATTR 1999-07-18 14:31:01 +00:00
Marcel Moolenaar
3cef63a1f6 Implementation of TCXONC.
Reviewed by: bde
1999-07-17 08:24:57 +00:00
Marcel Moolenaar
68875907c6 Implement VT_RELDISP ioctl
Submitted by: Kazutaka Yokota <yokota@FreeBSD.org>
1999-07-08 16:15:19 +00:00
Marcel Moolenaar
4cf8b502c3 Trivial implementation of TIOCM{S|G}ET and TIOCMBI{S|C} ioctls. No need
to convert the arguments.
1999-07-06 11:41:48 +00:00
Martin Cracauer
8f437f4439 Rename struct members sa_siginfo. POSIX reserves identifiers starting
with sa_ when <signal.h> is included. They would conflict with the
upcoming SA_SIGINFO implementation.

Reviewed by:	BDE
1999-07-06 06:55:29 +00:00
Marcel Moolenaar
19e520961c Let newuname return "Linux" as the OS name and not "FreeBSD". Also, return a
more sensible (for Linux applications) release number. Hardcoding a release
number has its drawbacks, but it will do for now.
1999-07-05 19:18:03 +00:00
Brian Feldman
6989d53551 sys/buf.h needs to have included sys/systm.h for spl prototypes. 1999-07-03 04:56:57 +00:00
Poul-Henning Kamp
bfbb9ce670 Divorce "dev_t" from the "major|minor" bitmap, which is now called
udev_t in the kernel but still called dev_t in userland.

Provide functions to manipulate both types:
        major()         umajor()
        minor()         uminor()
        makedev()       umakedev()
        dev2udev()      udev2dev()

For now they're functions, they will become in-line functions
after one of the next two steps in this process.

Return major/minor/makedev to macro-hood for userland.

Register a name in cdevsw[] for the "filedescriptor" driver.

In the kernel the udev_t appears in places where we have the
major/minor number combination, (ie: a potential device: we
may not have the driver nor the device), like in inodes, vattr,
cdevsw registration and so on, whereas the dev_t appears where
we carry around a reference to a actual device.

In the future the cdevsw and the aliased-from vnode will be hung
directly from the dev_t, along with up to two softc pointers for
the device driver and a few houskeeping bits.  This will essentially
replace the current "alias" check code (same buck, bigger bang).

A little stunt has been provided to try to catch places where the
wrong type is being used (dev_t vs udev_t), if you see something
not working, #undef DEVT_FASCIST in kern/kern_conf.c and see if
it makes a difference.  If it does, please try to track it down
(many hands make light work) or at least try to reproduce it
as simply as possible, and describe how to do that.

Without DEVT_FASCIST I belive this patch is a no-op.

Stylistic/posixoid comments about the userland view of the <sys/*.h>
files welcome now, from userland they now contain the end result.

Next planned step: make all dev_t's refer to the same devsw[] which
means convert BLK's to CHR's at the perimeter of the vnodes and
other places where they enter the game (bootdev, mknod, sysctl).
1999-05-11 19:55:07 +00:00
Peter Wemm
0749bbe267 Ack! I deleted "struct", not "const".. Oh boy...
Submitted by:	jkh
1999-05-10 12:38:41 +00:00
Peter Wemm
e37622b251 Fix a couple of warnings and some bitrot in comments. 1999-05-09 16:04:14 +00:00
Poul-Henning Kamp
90fb336860 Yet another place which knew too much. Still not sure how much
good this does in the end.
1999-05-09 10:25:30 +00:00
Poul-Henning Kamp
4be2eb8c49 I got tired of seeing all the cdevsw[major(foo)] all over the place.
Made a new (inline) function devsw(dev_t dev) and substituted it.

Changed to the BDEV variant to this format as well: bdevsw(dev_t dev)

DEVFS will eventually benefit from this change too.
1999-05-08 06:40:31 +00:00
Peter Wemm
d5558c001a Fix up a few easy 'assignment used as truth value' and 'suggest parens
around && within ||' type warnings.  I'm pretty sure I have not masked
any problems here, I've committed real problem fixes seperately.
1999-05-06 18:44:42 +00:00
Luoqi Chen
9debe21353 - Handle mixer read ioctls correctly. They have the same group, number and
argument size as their write counterparts and were handled as write ioctls.
- Emulate some cdrom ioctls.
1999-04-29 04:37:57 +00:00
Luoqi Chen
5206bca10a Enable vmspace sharing on SMP. Major changes are,
- %fs register is added to trapframe and saved/restored upon kernel entry/exit.
- Per-cpu pages are no longer mapped at the same virtual address.
- Each cpu now has a separate gdt selector table. A new segment selector
  is added to point to per-cpu pages, per-cpu global variables are now
  accessed through this new selector (%fs). The selectors in gdt table are
  rearranged for cache line optimization.
- fask_vfork is now on as default for both UP and SMP.
- Some aio code cleanup.

Reviewed by:	Alan Cox	<alc@cs.rice.edu>
		John Dyson	<dyson@iquest.net>
		Julian Elischer	<julian@whistel.com>
		Bruce Evans	<bde@zeta.org.au>
		David Greenman	<dg@root.com>
1999-04-28 01:04:33 +00:00
Poul-Henning Kamp
1c308b817a Change suser_xxx() to suser() where it applies. 1999-04-27 12:21:16 +00:00
Poul-Henning Kamp
f711d546d2 Suser() simplification:
1:
  s/suser/suser_xxx/

2:
  Add new function: suser(struct proc *), prototyped in <sys/proc.h>.

3:
  s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/

The remaining suser_xxx() calls will be scrutinized and dealt with
later.

There may be some unneeded #include <sys/cred.h>, but they are left
as an exercise for Bruce.

More changes to the suser() API will come along with the "jail" code.
1999-04-27 11:18:52 +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
e91896117b Well folks, this is it - The second stage of the removal for build support
for LKM's..
1999-04-17 08:36:07 +00:00
Peter Wemm
6637b74945 Image activators use EXEC_SET(), not TEXT_SET(). (The first is a macro
wrapper for DECLARE_MODULE(), the second is a linker set declaration)
1999-04-17 07:55:15 +00:00
Julian Elischer
4ac9ae7083 Fix thread/process tracking and differentiation for Linux threads emulation.
Submitted by:	Richard Seaman, Jr." <dick@tar.com>

Also clean some compiler warnings in surrounding code.
1999-03-02 00:28:09 +00:00
Mark Newton
0f1110bb5f svr4 emulator will refuse to unload itself if it is currently in use. 1999-02-04 12:43:17 +00:00
Mark Newton
4a735ee8b0 Acquiesce to proc.h for declarations of M_ZOMBIE, M_SUBPROC (and reorder
includes so proc.h knows the right type for 'em).

Suggested by: bde
1999-02-01 13:26:13 +00:00
Mark Newton
871f5df0ef Oops - Ripped out a bit of debugging code which will stop certain bits
of networking from working for people without DEC Tulip ethernet cards.
1999-01-30 09:42:55 +00:00
Mark Newton
f22dd58acc Emulator KLD for SysVR4 executables grabbed from NetBSD.
See http://www.freebsd.org/~newton/freebsd-svr4 for limitations,
capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
Julian Elischer
88c5ea4574 Enable Linux threads support by default.
This takes the conditionals out of the code that has been tested by
various people for a while.
ps and friends (libkvm) will need a recompile as some proc structure
changes are made.

Submitted by:	"Richard Seaman, Jr." <dick@tar.com>
1999-01-26 02:38:12 +00:00
Mike Smith
096d55fc13 Fix linux sendmsg() emulation
Submitted by:	Brian Feldman <green@unixhelp.org>
1999-01-11 05:28:44 +00:00
Eivind Eklund
dcda29feba Use truncate() instead of otruncate() - step on the way to stopping
the linulator from depending on COMPAT_43.
1999-01-10 23:15:35 +00:00
Julian Elischer
2267af789e Add (but don't activate) code for a special VM option to make
downward growing stacks more general.
Add (but don't activate) code to use the new stack facility
when running threads, (specifically the linux threads support).
This allows people to use both linux compiled linuxthreads, and also the
native FreeBSD linux-threads port.

The code is conditional on VM_STACK. Not using this will
produce the old heavily tested system.

Submitted by: Richard Seaman <dick@tar.com>
1999-01-06 23:05:42 +00:00