add quota option

branches: 1.72.4;
Revert vadvise(2) removal

This system call was used in legacy Lisp code, that was inherited to modern
age and still compiled against supported compat layers (e.g. in clisp,
oaklisp, Franz Lisp).

It used to instruct the kernel about paging policy (G/C aware, flush etc).

Newly compiled code (assuming that it will detect vadvise()) will use the
libc stub for vadvise(). The headers for this interface are gone.

vadvise(2) could be marked as COMPAT_80, but as long as we support ultrix,
sunos or aout68k ABI, don't bother with this.

Requested by <mrg>

compat/freebsd: Drop SYS_vadvise

The (o)vadvise syscall is dummy since the beginning of NetBSD.

Sponsored by <The NetBSD Foundation>

compat/freebsd: Drop SYS_sbrk

sbrk - change data segment size

This syscall is dummy since the inception of the project.

Sponsored by <The NetBSD Foundation>

compat freebsd: Drop the sstk(2) syscall

sstk(2) has never been implemented by the NetBSD kernel.

Sponsored by <The NetBSD Foundation>

Move freebsd_machdep.h into sys/compat/freebsd, and don't install it. Now,
the compat_freebsd files are all contained in sys/compat/freebsd.

branches: 1.67.6;
Fix dup/dup2/dup3 argument types (u_int -> int).

branches: 1.66.2; 1.66.4;
P1003_1B_SEMAPHORE is no longer optional.

branches: 1.65.4; 1.65.8;
merge the bouyer-quota2 branch. This adds a new on-disk format
to store disk quota usage and limits, integrated with ffs
metadata. Usage is checked by fsck_ffs (no more quotacheck)
and is covered by the WAPBL journal. Enabled with kernel
option QUOTA2 (added where QUOTA was enabled in kernel config files),
turned on with tunefs(8) on a per-filesystem
basis. mount_mfs(8) can also turn quotas on.

See http://mail-index.netbsd.org/tech-kern/2011/02/19/msg010025.html
for details.

branches: 1.64.2; 1.64.4; 1.64.6;
Kill fs_nfs.h and #ifdef NFS by making getfh() support unconditional
and nfssvc unsupport unconditional. nfs server was just a fancy
NOP anyway for all except Ultrix. I know I'm boring but I couldn't
imagine why someone would want to run an Ultrix nfs server (and I
also doubt that it would work anymore with all the changes to fs
exporting etc).

Remove lfs syscall support from compat. I can't really imagine
anyone wanting to run lfs megamaid as a e.g. FreeBSD binary.
Besides, the real action has been in fcntl() for >5 years now.
The only place where the compat syscalls might have made the tiniest
bit of sense was netbsd32, but they were unimplemented there.

branches: 1.62.4;
Convert the syscalls.master to a format from which it is easier
to parse and generate the compat name and basename (e.g. __stat50
and stat). Use this to autogenerate __RENAME()'s to the rump_syscalls
header so that they can be called e.g. rump_sys_socket() instead
of rump_sys___socket30().

merge christos-time_t

Make the emulations, exec formats, coredump, NFS, and the NFS server
into modules. By and large this commit:

- shuffles header files and ifdefs
- splits code out where necessary to be modular
- adds module glue for each of the components
- adds/replaces hooks for things that can be installed at runtime

Replace semid_t with intptr_t. No function change. This is a libc/kernel
private interface and so the name change should not affect any third
party code.

branches: 1.58.28; 1.58.30; 1.58.34; 1.58.36; 1.58.40; 1.58.44;
Remove all the syscall stubs that were only there to get files lookup
up in the alternate path.

branches: 1.57.2;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.56.2;
Merge newlock2 to head.

branches: 1.55.2;
Don't conditionalize *sys_ptrace. The lack of sys_ptrace will be dealt
with differently.

Update for options PTRACE

Step 1 to make filehandles completely opaque to userland

version the socket(2) syscall. for compat30 socket, we use
EPROTONOSUPPORT instead of EAFNOSUPPORT.

from pavel@ with a little bit of clean up from myself.

XXX: netbsd32 (and perhaps other emulations) should be able
XXX: to call the standard socket calls for this i think, but
XXX: revisit this at another time.

branches: 1.51.4;
fhstat needs to be versioned too (for ino_t). Pointed out by Izumi Tsutsui

branches: 1.50.4; 1.50.6; 1.50.8; 1.50.10; 1.50.12;
merge ktrace-lwp.

compat code reorg.

64 bit inode changes.

branches: 1.47.4;
Add FreeBSD sysctl emulation for their undocumented special OIDs rooted at
OID 0. Only OID 0.3 is implemented for now, it 0.3 is the equivalent of
NetBSD's sysctlgetmibinfo().
This includes a new sysctl kern.osreldate with the value __NetBSD_Version__
for kernels with COMPAT_FREEBSD.

Both of these are used by 3ware's FreeBSD tw_cli, which seems to work now.

branches: 1.46.4; 1.46.6;
FreeBSD emulation should not depend on NetBSD binary compatibility
options. Include compat_20_sys_*statfs* unconditionally.

Add opt_compat_netbsd.h because we need it for COMPAT_20; pointed out
by Jonathan Stone.

Replace the statfs() family of system calls with statvfs().
Retain binary compatibility.

uuidgen(2) syscall. Originally from FreeBSD, ported by John Franklin in
PR#23470, with minor updates by me. This is only the syscall support
from that PR, for now.

Changes: port over fix from FreeBSD for multicast address generation.
Changed bcopy to memcpy. For now, #ifdef notyet the portions of
kern_uuid.c that are meant to be used by (currently nonexistent) other
things in the kernel. Added syscall to COMPAT_FREEBSD as well, though
that's currently not useful, as any program new enough to use this call
also uses other syscalls we don't (yet) emulate.

add the new syscalls to the list

Add a good enuf emulation of the MAP_STACK flag to the mmap()
syscall. This allows programs which use MAP_STACK to work instead
of failing in weird and wonderous ways.

branches: 1.40.2;
Merge the nathanw_sa branch.

Add scheduler syscalls.

FreeBSD rfork emulation

Use #if defined(_LP64) to determine if we're generating 64-bit binaries,
not #if defined(alpha).

Hook in minherit(2), fhstatfs(2), fhopen(2), fhstat(2).
Adresses kern/8622 by Paul Shupak.

branches: 1.35.2; 1.35.6;
use _KERNEL_OPT.

branches: 1.34.2;
add emulation of FreeBSD utrace(2)

Get rid of the damn EMUL_GET* flags.

Add the %% separators.

LKMify

s/#ifdefined/#ifdef/

Changes to syscalls.master to exclude ntp_adjtime(2) entirely if NTP is not
defined. Changes to other files will follow in a moment.

implement new signal syscalls in FreeBSD 4.0-RELEASE, using native syscalls:
sigaction, sigprocmask, sigsuspend, and sigpending.

branches: 1.27.4;
Add names for many syscalls not yet implemented, including those in
FreeBSD 4.0-RELEASE. Also implement the following using existing NetBSD
syscalls: pread, pwrite, getsid, mlockall, munlockall, __getcwd.

We have now native issetugid.

branches: 1.25.2;
Update for new msgctl()/semctl()/shmctl().

XSH5: change function signature to `void *sbrk(intptr_t)'.

add "sys_" prefix to LFS syscalls

branches: 1.22.4;
PR/6962: Paul Shupak: FreeBSD-3.0 additions
- const poisoning

Defopt COMPAT_43

Defopt SYSVMSG, SYSVSEM and SYSVSHM.

Substantial signal handling changes:
* Increase the size of sigset_t to accomodate 128 signals -- adding new
versions of sys_setprocmask(), sys_sigaction(), sys_sigpending() and
sys_sigsuspend() to handle the changed arguments.
* Abstract the guts of sys_sigaltstack(), sys_setprocmask(), sys_sigaction(),
sys_sigpending() and sys_sigsuspend() into separate functions, and call them
from all the emulations rather than hard-coding everything. (Avoids uses
the stackgap crap for these system calls.)
* Add a new flag (p_checksig) to indicate that a process may have signals
pending and userret() needs to do the full (slow) check.
* Eliminate SAS_ALTSTACK; it's exactly the inverse of SS_DISABLE.
* Correct emulation bugs with restoring SS_ONSTACK.
* Make the signal mask in the sigcontext always use the emulated mask format.
* Store signals internally in sigaction structures, rather than maintaining a
bunch of little sigsets for each SA_* bit.
* Keep track of where we put the signal trampoline, rather than figuring it out
in *_sendsig().
* Issue a warning when a non-emulated sigaction bit is observed.
* Add missing emulated signals, and a native SIGPWR (currently not used).
* Implement the `not reset when caught' semantics for relevant signals.

Note: Only code touched by the i386 port has been modified. Other ports and
emulations need to be updated.

defopt NFSSERVER

defopt KTRACE

PR/5350: Minoura Makoto: add issetugid() syscall. (with fixes from me)

Include the NFS option header.

Put a local copy of the SysV IPC compatibility from compat/common in here, so
it's not dependent on COMPAT_10. Also, fix translation of shmctl(), since
FreeBSD's is a little different.

Change syscall table to use the 1.3 compatibility sigaltstack() function
(fix from kleink).

branches: 1.12.2;
Use stat12; from Enami Tsugutomo

ostat -> stat43

Fix a typo inherited from kern/syscalls.master.

lchown at #254.

Channel FreeBSD getdirentries to our now obsolete getdirentries call.

branches: 1.7.4;
Use compat_12_sys_swapon().

branches: 1.6.2;
NFSCLIENT -> NFS

branches: 1.5.2;
getlogin -> __getlogin

Catch up with setre[ug]id() changes.

branches: 1.3.4;
Fix minor oversight.

branches: 1.2.2;
Fix typo.

FreeBSD binary compatibility module, from Noriyuki Soda.