Commit Graph

35 Commits

Author SHA1 Message Date
Maxim Sobolev
3ad9c842d2 - Add support for IPC_64 extensions into shmctl(2), semctl(2) and msgctl(2);
- add wrappers for mmap2(2) and ftruncate64(2) system calls;
- don't spam console with printf's when VFAT_READDIR_BOTH ioctl(2) is invoked;
- add support for SOUND_MIXER_READ_STEREODEVS ioctl(2);
- make msgctl(IPC_STAT) and IPC_SET actually working by converting from
  BSD msqid_ds to Linux and vice versa;
- properly return EINVAL if semget(2) is called with nsems being negative.

Reviewed by:	marcel
Approved by:	marcel
Tested with:	LSB runtime test
2002-10-11 11:43:09 +00:00
Jens Schweikhardt
21dc7d4f57 Fix typo in the BSD copyright: s/withough/without/
Spotted and suggested by:	des
MFC after:	3 weeks
2002-06-02 20:05:59 +00:00
Marcel Moolenaar
c444f61706 Hook up the new linux_ptrace implementation.
PR: 33299
Submitted by: Alexander N. Kabaev <ak03@gte.com>
2002-05-19 01:27:14 +00:00
Marcel Moolenaar
4c1e3817c4 Implement linux_chown and linux_lchown. The fchown syscall maps
directly to the native syscall, because no filename handling
needs to be done.

Tested by: Martin Blapp <mb@imp.ch>
2001-10-16 06:15:36 +00:00
Michael Reifenberger
b8febfd1f2 Add a wrapper for linux_getsid -> getsid Syscall. 2001-09-15 09:57:30 +00:00
Marcel Moolenaar
5002a60f9b Round of cleanups and enhancements. These include (in random order):
o  Introduce private types for use in linux syscalls for two reasons:
   1. establish type independence for ease in porting and,
   2. provide a visual queue as to which syscalls have proper
      prototypes to further cleanup the i386/alpha split.
   Linuxulator types are prefixed by 'l_'. void and char have not
   been "virtualized".

o  Provide dummy functions for all syscalls and remove dummy functions
   or implementations of truely obsolete syscalls.

o  Sanitize the shm*, sem* and msg* syscalls.

o  Make a first attempt to implement the linux_sysctl syscall. At this
   time it only returns one MIB (KERN_VERSION), but most importantly,
   it tells us when we need to add additional sysctls :-)

o  Bump the kenel version up to 2.4.2 (this is not the same as the
   KERN_VERSION MIB, BTW).

o  Implement new syscalls, of which most are specific to i386. Our
   syscall table is now up to date with Linux 2.4.2. Some highlights:
   -  Implement the 32-bit uid_t and gid_t bases syscalls.
   -  Implement a couple of 64-bit file size/offset bases syscalls.

o  Fix or improve numerous syscalls and prototypes.

o  Reduce style(9) violations while I'm here. Especially indentation
   inconsistencies within the same file are addressed. Re-indenting
   did not obfuscate actual changes to the extend that it could not
   be combined.

NOTE: I spend some time testing these changes and found that if there
      were regressions, they were not caused by these changes AFAICT.
      It was observed that installing a RH 7.1 runtime environment
      did make matters worse. Hangs and/or reboots have been observed
      with and without these changes, so when it failed to make life
      better in cases it doesn't look like it made it worse.
2001-09-08 19:07:04 +00:00
Jim Pirzyk
814c95264f Added the linux_sysinfo function to implement sysinfo(2).
PR:		kern/27759
Reviewed by:	marcel
Approved by:	marcel
MFC after:	1 week
2001-07-23 06:22:10 +00:00
Jonathan Lemon
3417b54986 Remove dummy stub functions. 2001-02-16 14:46:16 +00:00
Marcel Moolenaar
ebea866055 Revert auto-generation. The Alpha port is broken.
Syncing with it is wrong.
2000-11-10 21:30:19 +00:00
Marcel Moolenaar
2da829a0c8 Sync with Alpha:
Do not use sysent.c, proto.h and syscall.h in source tree;
use auto-generated versions.
2000-11-09 07:27:55 +00:00
Andrew Gallatin
7936339495 A start at an implemention of linux_rt_sendsig & linux_rt_sigreturn
and associated user-level signal trampoline glue.

Without this patch, an SA_SIGINFO style handler can be installed by a linux
app, but if the handler accesses its sip argument, it will get a garbage
pointer and likely segfault.

We currently supply a valid pointer, but its contents are mainly
garbage.  Filling this in properly is future work.

This is the second of 3 commits that will get IBM's JDK 1.3 working with
FreeBSD ...
2000-10-17 00:00:20 +00:00
Marcel Moolenaar
a603fe5a07 Revert implementation of setfsuid and setfsgid due to security
issues.

Requested by: rwatson
Backed by: kris
2000-07-20 05:37:41 +00:00
Marcel Moolenaar
d5124417a7 Implement pread and pwrite.
PR: 17991
Submitted by: Geoffrey Speicher <geoff@caribbean.sea-incorporated.com>
2000-07-17 00:17:07 +00:00
Marcel Moolenaar
ddb48608ab Implement setfsuid and setfsgid. Implementation derived from patch
in PR.

PR: 16993
Submitted by: Bjoern Groenvall <bg@sics.se>
2000-07-16 21:23:34 +00:00
Peter Wemm
edfd254255 Regen after pointing to the real setres[ug]id(). Remove dummy function.
(Note: getres[ug]id is still a dummy as it returns via pointers to a
 different sized integer and does need real wrappers.)
2000-01-29 12:45:36 +00:00
Marcel Moolenaar
0484ef81d9 Update syscalls to Linux kernel 2.3.38. These syscalls are
implemented as dummies to ease problem solving.
2000-01-10 22:19:06 +00:00
Marcel Moolenaar
ec99e32256 Implement linux_sigaltstack. 1999-11-30 15:02:28 +00:00
Marcel Moolenaar
408da11907 Implement linux_ustat.
Reviewed by: bde
1999-11-27 16:55:14 +00:00
Marcel Moolenaar
25e5bdab9e Implement fdatasync in terms of fsync. The regeneration of proto.h,
syscall.h and sysent.h was probably forgotten after the last change
syscalls.master.
1999-11-26 10:20:10 +00:00
Marcel Moolenaar
956d3333ca sigset_t change (part 4 of 5)
-----------------------------

The compatibility code and/or emulators have been updated:

iBCS2 now mostly uses the older syscalls. SVR4 now properly
handles all signals. This has been achieved by using the
new sigset_t throughout the emulator. The Linuxulator has
been severely updated. Internally the new Linux sigset_t is
made the default. These are then mapped to and from the
new FreeBSD sigset_t.

Also, rt_sigsuspend has been implemented in the Linuxulator.
Implementing this syscall basicly caused all this sigset_t
changing in the first place and the syscall has been used
throughout the change as a means for testing. It basicly is
too much work to undo the implementation so that it can
later be added again.

A special note on the use of sv_sigtbl and sv_sigsize in
struct sysentvec:
Every signal larger than sv_sigsize is not translated and is
passed on to the signal handler unmodified. Signals in the
range 1 upto and including sv_sigsize are translated.
The rationale is that only the system defined signals need to
be translated.

The emulators also have been updated so that the translation
tables are only indexed for valid (system defined) signals.
This change also fixes the translation bug already in the
SVR4 emulator.
1999-09-29 15:12:18 +00:00
Luoqi Chen
2323686abc Implement linux_ioperm() syscall. Fix linux_iopl() to use the level argument.
SVGAlib should now work.

Reviewed by:	marcel
1999-09-22 22:01:51 +00:00
Marcel Moolenaar
ff78e85043 Implementation of the modify_ldt syscall. Use the sysarch() interface to do
the actual work. When USER_LDT is not defined for a kernel, sysarch returns
EOPNOTSUPP. Display a message in that case and return ENOSYS to userland.

Reviewed by: luoqi
1999-09-02 21:50:42 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Marcel Moolenaar
296f7267f3 Fix lingo: 'is not implemented or obsoleted' is not the same as 'is obsoleted
or not implemented'.
1999-08-25 13:17:05 +00:00
Marcel Moolenaar
2fdc82e093 Change all UNIMPL syscalls to STD and add them to linux_dummy. Now we always
know if and when an unimplemented or obsoleted syscall is being used. Make the
message more end-user friendly.

And as long as we're here, rename some unimplemeted syscalls (linux_phys ->
linux_umount2, linux_vm86 -> linux_vm86old, linux_new_vm86 -> linux_vm86).

Change prototype for linux_newuname from `struct linux_newuname_t *' into
`struct linux_new_utsname *'. This change is reflected in linux.h and
linux_misc.c.
1999-08-25 11:19:03 +00:00
Marcel Moolenaar
878c351a1c Major rewrite.
The first reason for this rewrite is KNF conformance.

The second reason is to avoid redundancy. Each function printed the same
string, with only the syscall name being different. The actual printing is now
performed by a single function, which gets the syscall name as an argument.

The third reason is that of convenience. It's now very easy to add a new
dummy implementation. Just add ``DUMMY(foo);'' to the file. It's also a lot
easier now to see if a syscall has a dummy implementation or not.

The dummies are ordered on syscall number. Please maintain this when adding
new dummies (there're 32 candidates at the time of writing :-)

Reviewed by: bde
1999-08-15 18:59:44 +00:00
Julian Elischer
6626c6045c Reviewed by: Luoqi Chen, Jordan Hubbard
Submitted by:	 "Richard Seaman, Jr." <lists@tar.com>
Obtained from:	linux :-)

Code to allow Linux Threads to run under FreeBSD.

By default not enabled
This code is dependent on the conditional
COMPAT_LINUX_THREADS (suggested by Garret)
This is not yet a 'real' option but will be within some number of hours.
1998-12-19 02:55:34 +00:00
Poul-Henning Kamp
cb226aaa62 Move the "retval" (3rd) parameter from all syscall functions and put
it in struct proc instead.

This fixes a boatload of compiler warning, and removes a lot of cruft
from the sources.

I have not removed the /*ARGSUSED*/, they will require some looking at.

libkvm, ps and other userland struct proc frobbing programs will need
recompiled.
1997-11-06 19:29:57 +00:00
KATO Takenori
404c835d69 Implement linux_iopl and linux_nice. 1997-10-29 08:17:14 +00:00
Bruce Evans
293a9e510c Removed unused #includes. 1997-07-20 16:06:08 +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
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
Bruce Evans
1f3dad5a8d Completed function declarations and added prototypes.
Removed some unnecessary #includes.

Fixed warnings about nested externs.
1995-11-22 07:43:53 +00:00
Søren Schmidt
c21dee177f First incarnation of our Linux emulator or rather compatibility code.
This first shot only incorporaties so much functionality that DOOM
can run (the X version), signal handling is VERY weak, so is many
other things. But it meets my milestone number one (you guessed it
- running DOOM).

Uses /compat/linux as prefix for loading shared libs, so it won't
conflict with our own libs.

Kernel must be compiled with "options COMPAT_LINUX" for this to work.
1995-06-25 17:32:43 +00:00