fix typo

branches: 1.6.6;
use new bsd.syscall.mk

branches: 1.5.110; 1.5.120; 1.5.126;
merge ktrace-lwp.

make this rebuild generated files by default

branches: 1.3.8; 1.3.10;
We have CVS; there is no reason to make .bak files when generating the
syscall tables.

Use ${HOST_SH} instead of `sh'.

If necessary, pull in <bsd.sys.mk> to get the definition of HOST_SH;
Makefiles that pull in one of (most of) <bsd.*.mk> will get this anyway.

branches: 1.1.64;
Added a missing Makefile and run it
Moved the prototyp for sunos_sendsig in an #ifndef sparc

Standardize COMPAT_SUNOS -- remove all references to
sunos_exec_aout_makecmds() in machdep.c for various architectures and put
it in exec_conf.c like the other emulations; rename exec.h to
sunos_exec.h.

rename, new syscall interface, etc.

New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD'

Fix spelling error in Copyright notice

branches: 1.1.2;
compat exec() stuff is done more sensibly now
(hpux and ultrix compat stuff will be done the same way)

compat_sunos depends upon compat_09. fixes:

[ 1.8785495] WARNING: module error: built-in module compat_sunos can't find builtin dependency `compat_09'
[ 1.8785495] WARNING: module error: built-in module compat_sunos prerequisite compat_09 failed, error 2

Merge the [pgoyette-compat] branch

branches: 1.9.18; 1.9.20;
Define compat modules (but without dependencies yet).

branches: 1.8.26;
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

branches: 1.7.122; 1.7.126; 1.7.132; 1.7.136;
don't build these files if we're doing compat_netbsd32 as well.
a different set are required.

put aout specific sunos code from sunos_exec.c to separate file
sunos_exec_aout.c
make LKM safe
add EMUL_GETPID_PASS_PPID|EMUL_GETID_PASS_EID to emul_sunos flags

branches: 1.5.12;
if syscall_debug & compat_sunos, include sunos_syscalls.c

branches: 1.4.8;
config.new => config

Use compat_util.[ch]

Go with the flow; use `/emul/sunos' pseudo-root (from Matthew Green).
Note: sunos_stat() and sunos_lstat() were added too.

Try to make the reboot system call compile under sun3 with RB_STRING
support [not tested]
Add files.sunos
Rename system call switch table file from sunos_init_sysent.c to sunos_sysent.c
like other emulations.

Clean up deleted files.

fix a botch, and gen syscall files

fix up for new ID format, and consistency

New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD'

keep appropriate id's in 'created from' lines

SYS_* -> SUN_SYS_* to avoid name space clash

branches: 1.4.2;
moved from arch/sparc/sunos to compat/sunos

chmod 444 on the output files is a bad idea

various changes, suffice to say that 4.4 syscalls do not look like ours

Chris Torek's sparc port. Missing lots of things.

Clean up deleted files.

Avoid some macro redefinitions that have appeared since exec.h
now includes exec_aout.h

branches: 1.5.2;
New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD'

Fix spelling error in Copyright notice

for new exec, from mw

m68k/sparc sunos binary compatibility code, pulled down from magnum branch
for consumption by the m68k masses

branches: 1.1.2;
compat exec() stuff is done more sensibly now
(hpux and ultrix compat stuff will be done the same way)

Clean up deleted files.

branches: 1.3.2;
moved from arch/sparc/sunos to compat/sunos

cannonicalize #include's

sunos compat execve() helper routines.
these routines are not useful/used on the sparc, but are needed
by the sun3.

Clean up deleted files.

pay a small amount of lip service to the new syscall args mechanism.
In reality, none of these will compile.

New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD'

bail on SIOCGARP

Fix typo.
Give TIOCTCNTL a try.

Fix spelling error in Copyright notice

sync with magnum

m68k/sparc sunos binary compatibility code, pulled down from magnum branch
for consumption by the m68k masses

branches: 1.5.2;
moved from arch/sparc/sunos to compat/sunos

fake support for TIOCSSOFTCAR and TIOCGSOFTCAR
(one of which used to point to NetBSD's TIOCSTAT :-)

disassembly shows the %f2 register being accessed, and of course the
kernel panics.
why wasit using %f2? some expressions were too complicated and gcc2 (with
the optimizer off, mind you) ran out of integer registers and thus used
started using a float register for a temporary.

replacement set of sun ioctl functions. markus wild added a
whole slew of new ioctl's that are much more close to reality.

the comat-sunos tree is now almost good enough to be used in
both m68k and sparc kernels.

Chris Torek's sparc port. Missing lots of things.

Clean up deleted files.

pay a small amount of lip service to the new syscall args mechanism.
In reality, none of these will compile.

use STACKGAPBASE

New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD'

sun_mount: fill in one more field.

async_daemon only if NFSCLIENT

Adapt to 4.4-lite.

Minor change.

tricky

maxfdescs -> maxfiles

iszerodev

fix uname after sysctl

p->p_sig -> p->p_siglist

fix my forgetfulness; from gwr

expand the rlimit struct, kill last vestiges of off_t bogosity.

kill syscall name aliases. no user-visible changes

SunOS's RLIMIT_NOFILE is different: add sun_[gs]rlimit().

make sunos mount(2) work again

sickness to get SunOS mmap right

expand uid_t/gid_t/off_t

DoH!

first cut at a SUNOS_COMPAT sysconf() system call.

place conditional around sun_nfssvc.

m68k/sparc sunos binary compatibility code, pulled down from magnum branch
for consumption by the m68k masses

branches: 1.9.2;
moved from arch/sparc/sunos to compat/sunos

new compat functions: sun_open, sun_auditsys, sun_setpgid, sun_uname
some from Markus.

specdev.h moves

silly typo

support both sun3 & sparc concepts of minor/major #'s for /dev/zero

fix sun_getdents()
fix sun_mmap()
Note: delete the "struct dirent" in here when sys/dirent.h is created.

Add a stub auditsys() system call that does nothing.
SunOS /sbin/fsck calls it..

various changes, suffice to say that 4.4 syscalls do not look like ours

Chris Torek's sparc port. Missing lots of things.

Clean up deleted files.

fix a botch, and gen syscall files

update to match recent getdtablesize() change

follow

sun syscalls.master update

SunOS's RLIMIT_NOFILE is different: add sun_[gs]rlimit().

nice unique SUN_SYS_ names..

expand uid_t/gid_t/off_t

update to syscall.master (for sysconf)

update to latest syscalls.master

branches: 1.8.2;
moved from arch/sparc/sunos to compat/sunos

update to new syscalls.master

update to latest syscalls.master

update from new syscalls.master

rebuilt from syscall.master: {get,set}domainname change

rebuild files from syscalls.master

various changes, suffice to say that 4.4 syscalls do not look like ours

Chris Torek's sparc port. Missing lots of things.

Clean up deleted files.

fix a botch, and gen syscall files

update to match recent getdtablesize() change

follow

sun syscalls.master update

SunOS's RLIMIT_NOFILE is different: add sun_[gs]rlimit().

nice unique SUN_SYS_ names..

expand uid_t/gid_t/off_t

update to syscall.master (for sysconf)

update to latest syscalls.master

branches: 1.8.2;
moved from arch/sparc/sunos to compat/sunos

update to new syscalls.master

update to latest syscalls.master

update from new syscalls.master

rebuilt from syscall.master: {get,set}domainname change

rebuild files from syscalls.master

various changes, suffice to say that 4.4 syscalls do not look like ours

Chris Torek's sparc port. Missing lots of things.

Clean up deleted files.

fix a botch, and gen syscall files

update to match recent getdtablesize() change

follow

sun syscalls.master update

SunOS's RLIMIT_NOFILE is different: add sun_[gs]rlimit().

nice unique SUN_SYS_ names..

expand uid_t/gid_t/off_t

update to syscall.master (for sysconf)

update to latest syscalls.master

branches: 1.8.2;
moved from arch/sparc/sunos to compat/sunos

update to new syscalls.master

update to latest syscalls.master

update from new syscalls.master

rebuilt from syscall.master: {get,set}domainname change

rebuild files from syscalls.master

various changes, suffice to say that 4.4 syscalls do not look like ours

Chris Torek's sparc port. Missing lots of things.

More on PR 41200: headers that declare ioctls should include sys/ioccom.h.
This covers (I think) all the MI headers outside of external/ (and dist/).

branches: 1.23.24; 1.23.42;
merge christos-time_t

branches: 1.22.12; 1.22.14; 1.22.18; 1.22.26;
Remove all the __P

branches: 1.21.14; 1.21.16; 1.21.22; 1.21.24;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.20.26;
merge ktrace-lwp.

64 bit inode changes.

branches: 1.18.16;
all ports define __HAVE_SIGINFO now, so remove the CPP conditionals

catch up with const sigset_t and const ksiginfo_t

Fix "constify sendsig/trapsignal" fallout for non-siginfo'd archs. Test
compiled on most architectures.

SA_SIGINFO support for m68k (compat sunos)

branches: 1.14.2;
Bump daddr_t to 64 bits. Replace it with int32_t in all places where
it was used on-disk, so that on-disk formats remain the same.
Remove ufs_daddr_t and ufs_lbn_t for the time being.

Add kernel support for having userland provide the signal trampoline:

* struct sigacts gets a new sigact_sigdesc structure, which has the
sigaction and the trampoline/version. Version 0 means "legacy kernel
provided trampoline". Other versions are coordinated with machine-
dependent code in libc.
* sigaction1() grows two more arguments -- the trampoline pointer and
the trampoline version.
* A new __sigaction_sigtramp() system call is provided to register a
trampoline along with a signal handler.
* The handler is no longer passed to sensig() functions. Instead,
sendsig() looks up the handler by peeking in the sigacts for the
process getting the signal (since it has to look in there for the
trampoline anyway).
* Native sendsig() functions now select the appropriate trampoline and
its arguments based on the trampoline version in the sigacts.

Changes to libc to use the new facility will be checked in later. Kernel
version not bumped; we will ride the 1.6C bump made recently.

branches: 1.12.2; 1.12.4; 1.12.16;
make this useful when compiled on sparc64: two members in sunos_nfs_args
become typedefs.

branches: 1.11.12;
Since the last signal restructuring the sparc also has an sunos_sendsig().

change sunos compat structure members from long to int so they stay the same on sparc64

Definition of pollfd is no longer needed.

Added a missing Makefile and run it
Moved the prototyp for sunos_sendsig in an #ifndef sparc

Put prototype for sunos_sendsig() in sunos.h as suggested by veego.

Adapt compat NFS mount code to NFSv3.

Remove struct sunos_dirent from here.

Move SunOS audio_info compat stuff here (from sparc/dev/bsd_audio.c).

ptrace from chs+@CS.cmu.edu, poll from christos

new RCS ID format.

and these

Remove compat_svr4 and compat_svr4_32, as discussed on tech-kern@ recently,
but also as discussed several times in the past.

branches: 1.3.86; 1.3.88;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.144; 1.2.146; 1.2.148;
Assign copyright to TNF.

Use cookies for directory offset, mostly from Greg Hudson.

Allow syscall_establish() to install new syscalls when the existing
entry-point is either sys_nomodule or sys_nosys. Update the
makesyscalls.sh script to create a const array of bits to allow
syscall_disestablish() to properly restore the original entry-point.
Update all the initializers of struct emul to initialize the pointer
to the bit array struct emul.

XXX Regen of all files created by makesyscalls.sh will come soon,
XXX followed by a kernel version bump (since struct emul is being
XXX modified).

This commit should address PR kern/45781 and also removes the need
for the work-around for that PR in file

sys/arch/usermode/modules/syscallemu/syscallemu.c

branches: 1.56.2;
Remove an element from struct emul: e_tracesig

e_tracesig used to be implemented for Darwin compat. Nowadays the Darwin
compatiblity layer is gone and there are no other users.

This functionality isn't used where it shall be used in the existing
codebase.

If we want to emulate debugging interfaces in compat layers we would need
to implement that from scratch anyway. We would need to be bug compatible
with other OSes too.

Proposed on tech-kern@.

Welcome to NetBSD 8.99.16!

Sponsored by <The NetBSD Foundation>

branches: 1.55.2;
remove struct emul's e_fault.

It used to be used by COMPAT_IRIX for the purpose of overriding
uvm_fault (only implemented in MIPS), now removed.

Ride 8.99.12 version bump.

Remove COMPAT_SA / KERN_SA. Welcome to 6.99.3!
Approved by core@.

branches: 1.53.8; 1.53.12;
many changes for COMPAT_LINUX:
- update the linux syscall table for each platform.
- support new-style (NPTL) linux pthreads on all platforms.
clone() with CLONE_THREAD uses 1 process with many LWPs
instead of separate processes.
- move the contents of sys__lwp_setprivate() into a new
lwp_setprivate() and use that everywhere.
- update linux_release[] and linux32_release[] to "2.6.18".
- adjust placement of emul fork/exec/exit hooks as needed
and adjust other emul code to match.
- convert all struct emul definitions to use named initializers.
- change the pid allocator to allow multiple pids to refer to the same proc.
- remove a few fields from struct proc that are no longer needed.
- disable the non-functional "vdso" code in linux32/amd64,
glibc works fine without it.
- fix a race in the futex code where we could miss a wakeup after
a requeue operation.
- redo futex locking to be a little more efficient.

branches: 1.52.6; 1.52.8;
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

branches: 1.51.12; 1.51.16; 1.51.22; 1.51.24;
Remove all the __P

branches: 1.50.44; 1.50.46; 1.50.52; 1.50.56;
merge ktrace-lwp.

Add a sunos_machdep include file to deal with MD implementations of
sunos_syscall_intern.

More syscall_intern lossage.

branches: 1.47.2;
Fix some things regarding COMPAT_NETBSD32 and limits/VM addresses.

* For sparc64 and amd64, define *SIZ32 VM constants.
* Add a new function pointer to struct emul, pointing at a function
that will return the default VM map address. The default function
is uvm_map_defaultaddr, which just uses the VM_DEFAULT_ADDRESS
macro. This gives emulations control over the default map address,
and allows things to be mapped at the right address (in 32bit range)
for COMPAT_NETBSD32.
* Add code to adjust the data and stack limits when a COMPAT_NETBSD32
or COMPAT_SVR4_32 binary is executed.
* Don't use USRSTACK in kern_resource.c, use p_vmspace->vm_minsaddr
instead (emulations might have set it differently)
* Since this changes struct emul, bump kernel version to 3.99.2

Tested on amd64, compile-tested on sparc64.

branches: 1.46.2;
nuke trailing whitespace

branches: 1.45.8; 1.45.10;
Put back Emmanuel's sigfilter hooks, as decided by Core.

Introduce lwp_emuldata and the associated hooks. No hook is provided for the
exec case, as the emulation already has the ability to intercept that
with the e_proc_exec hook. It is the responsability of the emulation to
take appropriaye action about lwp_emuldata in e_proc_exec.

Patch reviewed by Christos.

back the sigfilter emulation hook change off

Add a sigfilter emulation hook. It is used at the beginning of kpsignal2()
so that a specific emulation has the oportunity to filter out some signals.

if sigfilter returns 0, then no signal is sent by kpsignal2().

There is another place where signals can be generated: trapsignal. Since this
function is already an emulation hook, no call to the sigfilter hook was
introduced in trapsignal.

This is needed to emulate the softsignal feature in COMPAT_DARWIN (signals
sent as Mach exception messages)

add support for non-executable mappings (where the hardware allows this)
and make the stack and heap non-executable by default. the changes
fall into two basic catagories:

- pmap and trap-handler changes. these are all MD:
= alpha: we already track per-page execute permission with the (software)
PG_EXEC bit, so just have the trap handler pay attention to it.
= i386: use a new GDT segment for %cs for processes that have no
executable mappings above a certain threshold (currently the
bottom of the stack). track per-page execute permission with
the last unused PTE bit.
= powerpc/ibm4xx: just use the hardware exec bit.
= powerpc/oea: we already track per-page exec bits, but the hardware only
implements non-exec mappings at the segment level. so track the
number of executable mappings in each segment and turn on the no-exec
segment bit iff the count is 0. adjust the trap handler to deal.
= sparc (sun4m): fix our use of the hardware protection bits.
fix the trap handler to recognize text faults.
= sparc64: split the existing unified TSB into data and instruction TSBs,
and only load TTEs into the appropriate TSB(s) for the permissions.
fix the trap handler to check for execute permission.
= not yet implemented: amd64, hppa, sh5

- changes in all the emulations that put a signal trampoline on the stack.
instead, we now put the trampoline into a uvm_aobj and map that into
the process separately.

originally from openbsd, adapted for netbsd by me.

branches: 1.40.6;
handle __HAVE_MINIMAL_EMUL

set struct emul's nsysent to compat SYS_NSYSENT, not SYS_MAXSYSCALL

- Introduce a e_fault field in struct proc to provide emulation specific
memory fault handler. IRIX uses irix_vm_fault, and all other emulation
use NULL, which means to use uvm_fault.

- While we are there, explicitely set to NULL the uninitialized fields in
struct emul: e_fault and e_sysctl on most ports

- e_fault is used by the trap handler, for now only on mips. In order to avoid
intrusive modifications in UVM, the function pointed by e_fault does not
has exactly the same protoype as uvm_fault:
int uvm_fault __P((struct vm_map *, vaddr_t, vm_fault_t, vm_prot_t));
int e_fault __P((struct proc *, vaddr_t, vm_fault_t, vm_prot_t));

- In IRIX share groups, all the VM space is shared, except one page.
This bounds us to have different VM spaces and synchronize modifications
to the VM space accross share group members. We need an IRIX specific hook
to the page fault handler in order to propagate VM space modifications
caused by page faults.

m68k syscall rototill:

- Switch all m68k-based ports over to __HAVE_SYSCALL_INTERN.
- Add systrace glue.
- Define struct mdproc in <m68k/proc.h> instead of <machine/proc.h>.
(They were all defined exactly the same anyway, other than a couple
of the MDP_* flags.)

branches: 1.36.8;
add RCSIDs (including regeneration of files as appropriate)

Make the setregs hook emulation-specific, rather than executable
format specific.
Struct emul has a e_setregs hook back, which points to emulation-specific
setregs function. es_setregs of struct execsw now only points to
optional executable-specific setup function (this is only used for
ECOFF).

branches: 1.34.2; 1.34.4;
Add an e_trapsignal member to struct emul, so that emulated processes can
send the appropriate signal depending on the trap type.

Removed obsoletes EMUL_NO_BSD_ASYNCIO_PIPE and EMUL_NO_SIGIO_ON_READ flags.
Async I/O OS specifities should now handled in OS specific code. Linux
has been done, but other emulation should be handled. See case LINUX_F_SETFL
in sys/compat/linux/common/linux_file.c:linux_sys_fcntl() for more details.

The data that has been collected yet:

Net Free Open Linux SunOS AIX OSF1 Darwin
send SIGIO to write end of pipe Y N N N N N Y Y
send SIGIO to read end of pipe Y Y N N N ? Y ?
send SIGIO to write end of socket Y Y Y N N Y Y Y
send SIGIO to read end of socket Y Y Y Y Y ? Y ?

use _KERNEL_OPT.

Changed EMUL_BSD_ASYNCIO_PIPE to EMUL_NO_BSD_ASYNCIO_PIPE, so that
the native emulation (NetBSD) does not have a flag.

Added two flags to emulation packages:

EMUL_BSD_ASYNCIO_PIPE notes that the emulated binaries expect the original
BSD pipe behavior for asynchronous I/O, which is to fire SIGIO on read() and
write(). OSes without this flag do not expect any SIGIO to be fired on
read() and write() for pipes, even when async I/O was requested. As far as
we know, the OSes that need EMUL_BSD_ASYNCIO_PIPE are NetBSD, OSF/1 and
Darwin.

EMUL_NO_SIGIO_ON_READ notes that the emulated binaries that requested
asynchrnous I/O expect the reader process to be notified by a SIGIO, but
not the writer process. OSes without this flag expect the reader and the
writer to be notified when some data has arrived or when some data have been
read. As far as we know, the OSes that need EMUL_NO_SIGIO_ON_READ are Linux
and SunOS.

branches: 1.29.2;
Introduce 2 new flags in types.h:
* __HAVE_SYSCALL_INTERN. If this is defined, e_syscall is replaced by
e_syscall_intern, which is called at key places in the kernel. This can be
used to set a MD syscall handler pointer. This obsoletes and replaces the
*_HAS_SEPARATED_SYSCALL flags.
* __HAVE_MINIMAL_EMUL. If this is defined, certain (deprecated) elements in
struct emul are omitted.

always fill in e_syscall in respective emul_*; if the emulation doesn't
have it's own separated *_syscall() function, use syscall()

Get rid of the damn EMUL_GET* flags.

put aout specific sunos code from sunos_exec.c to separate file
sunos_exec_aout.c
make LKM safe
add EMUL_GETPID_PASS_PPID|EMUL_GETID_PASS_EID to emul_sunos flags

fix the emulation path

add e_path (emulation path) to struct emul, which replaces emulation-specific
*_emul_path variables

change macros CHECK_ALT_{CREAT|EXIST} to use that, 'root' doesn't need
to be passed explicitly any more and *_CHECK_ALT_{CREAT|EXIST} are removed
change explicit emul_find() calls in probe functions to get the emulation
path from the checked exec switch entry's emulation

remove no longer needed header files

add e_flags and e_syscall to struct emul; these are unsed and empty for now

Make these compile with the latest execsw[] changes. Someone with
SunOS binaries needs to test this...

restructure struct emul and execsw, in preparation to make emulations LKMable:
* move all exec-type specific information from struct emul to execsw[] and
provide single struct emul per emulation
* elf:
- kern/exec_elf32.c:probe_funcs[] is gone, execsw[] how has one entry
per emulation and contains pointer to respective probe function
- interp is allocated via MALLOC() rather than on stack
- elf_args structure is allocated via MALLOC() rather than malloc()
* ecoff: the per-emulation hooks moved from alpha and mips specific code
to OSF1 and Ultrix compat code as appropriate, execsw[] has one entry per
emulation supporting ecoff with appropriate probe function
* the makecmds/probe functions don't set emulation, pointer to emulation is
part of appropriate execsw[] entry
* constify couple of structures

change the type of *syscallnames[] array to 'const char * const foo[]'

remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

defopt SYSCALL_DEBUG.

branches: 1.18.2;
add a new function vn_marktext() for exec code to let others know
that the vnode is now being used as process text.

branches: 1.17.2;
Need sunos_sigcode and sunos_esigcode now that our sigreturn is
different.

branches: 1.16.2;
remove unneeded <vm/*> includes

Everyone uses sunos_sendsig().

use __sparc__ not sparc

Standardize COMPAT_SUNOS -- remove all references to
sunos_exec_aout_makecmds() in machdep.c for various architectures and put
it in exec_conf.c like the other emulations; rename exec.h to
sunos_exec.h.

don't include <machine/exec.h> explicitly. No other changes needed, since
<sys/exec.h> was already being included.

Put prototype for sunos_sendsig() in sunos.h as suggested by veego.

Bring prototypes into scope and fix compiler warnings.

Add sunos_emul_path (/emul/sunos). I don't know if this is correct, but
this will at least aid the compilation step and is similar to the
others.

- added struct emul to all emulations.
- removed all setup functions.
- added copyargs() functions where needed.

rename, new syscall interface, etc.

Avoid some macro redefinitions that have appeared since exec.h
now includes exec_aout.h

branches: 1.5.2;
New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD'

Fix spelling error in Copyright notice

for new exec, from mw

m68k/sparc sunos binary compatibility code, pulled down from magnum branch
for consumption by the m68k masses

branches: 1.1.2;
compat exec() stuff is done more sensibly now
(hpux and ultrix compat stuff will be done the same way)

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

branches: 1.10.12; 1.10.16; 1.10.22; 1.10.24;
Remove all the __P

branches: 1.9.44; 1.9.46; 1.9.52; 1.9.56;
merge ktrace-lwp.

Delete define for sunos_syscall_intern.

define sunos_syscall_intern now that sparc needs it.

branches: 1.6.2; 1.6.18;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V

Added support for running 68010 SunOS executables.

branches: 1.3.2; 1.3.4;
Make these compile with the latest execsw[] changes. Someone with
SunOS binaries needs to test this...

branches: 1.2.12;
use __sparc__ not sparc

Standardize COMPAT_SUNOS -- remove all references to
sunos_exec_aout_makecmds() in machdep.c for various architectures and put
it in exec_conf.c like the other emulations; rename exec.h to
sunos_exec.h.

Make sure we have space for the aout header.

branches: 1.18.22; 1.18.40;
Include <sys/exec_aout.h> explicitly instead of relying on <sys/exec.h> to
do it for you.

branches: 1.17.16;
ANSIfy most of the function definitions in sys/compat (but not ndis).
All by the magic of sed ...

Remove all the __P

branches: 1.15.2; 1.15.4;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.14.30; 1.14.44; 1.14.46; 1.14.50;
merge ktrace-lwp.

branches: 1.13.4;
nuke trailing whitespace

Don't try to map a 0 size bss.

branches: 1.11.8; 1.11.10;
- GC all the setup_stack functions
- add one for linux/i386

branches: 1.10.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

More changes for providing lwpid for ktrace (sparc GENERIC built)

Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V

Use PAGE_SIZE rather than NBPG.

count executable image pages as executable for vm-usage purposes.
also, always do the VTEXT vs. v_writecount mutual exclusion
(which we previously skipped if the text or data segment was empty).

remove trailing \n in panic(). approved perry.

branches: 1.4.10;
Added support for running 68010 SunOS executables.

add RCSIDs (including regeneration of files as appropriate)

- Add a new vnode flag VEXECMAP, which indicates that a vnode has
executable mappings. Stop overloading VTEXT for this purpose (VTEXT
also has another meaning).
- Rename vn_marktext() to vn_markexec(), and use it when executable
mappings of a vnode are established.
- In places where we want to set VTEXT, set it in v_flag directly, rather
than making a function call to do this (it no longer makes sense to
use a function call, since we no longer overload VTEXT with VEXECMAP's
meaning).

VEXECMAP suggested by Chuq Silvers.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.10;
put aout specific sunos code from sunos_exec.c to separate file
sunos_exec_aout.c

Try to make the reboot system call compile under sun3 with RB_STRING
support [not tested]
Add files.sunos
Rename system call switch table file from sunos_init_sysent.c to sunos_sysent.c
like other emulations.

syscalls.master was changed

- added struct emul to all emulations.
- removed all setup functions.
- added copyargs() functions where needed.

update

update

new syscalls

syscalls.master changed

update

and we update these

and these

sys/compat: Memset zero before copyout.

Just in case of uninitialized padding which would lead to kernel
stack disclosure. If the compiler can prove the memset redundant
then it can optimize it away; otherwise better safe than sorry.

Add missing break

branches: 1.69.2;
KNF. No functional change.

branches: 1.68.8; 1.68.16;
Uninitialized var, found by mootja; not tested, but obvious enough

branches: 1.67.2;
Redo previous. zero check before modulo.

d_secpercyl is gone and we use the value from disklabel anyway.

PR 50518 bad switch

Replace DIOCGPART -> DIOCGPARTINFO which returns the data needed instead of
pointers.

rename sun ioctls

branches: 1.62.2;
Try not to use f_data, use f_{vnode,socket,pipe,mqueue,kqueue,ksem} to get
a correctly typed pointer.

branches: 1.61.26;
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

branches: 1.60.4; 1.60.6; 1.60.10; 1.60.12;
Catch up with descriptor handling changes. See kern_descrip.c revision
1.173 for details.

branches: 1.59.6;
Convert all the system call entry points from:
int foo(struct lwp *l, void *v, register_t *retval)
to:
int foo(struct lwp *l, const struct foo_args *uap, register_t *retval)
Fixup compat code to not write into 'uap' and (in some cases) to actually
pass a correctly formatted 'uap' structure with the right name to the
next routine.
A few 'compat' routines that just call standard ones have been deleted.
All the 'compat' code compiles (along with the kernels required to test
build it).
98% done by automated scripts.

branches: 1.58.4;
ANSIfy most of the function definitions in sys/compat (but not ndis).
All by the magic of sed ...

Remove all the __P

branches: 1.56.6; 1.56.8; 1.56.14; 1.56.16;
Fallout from the interface ioctl changes:

OSIOCGIFADDR -> OOSIOCGIFADDR
OSIOCGIFDSTADDR -> OOSIOCGIFDSTADDR
OSIOCGIFNETMASK -> OOSIOCGIFNETMASK

Also, one instance of needing to include <net/if.h> before
<compat/sys/sockio.h> due to use of IFNAMSIZ in the latter.

Discussed with christos.

Add a sockaddr_storage member to "struct ifreq" maintaining backwards
compatibility with the older ioctls. This avoids stack smashing and
abuse of "struct sockaddr" when ioctls placed "struct sockaddr_foo's" that
were longer than "struct sockaddr".
XXX: Some of the emulations might be broken; I tried to add code for
them but I did not test them.

Split the fcntl locking code out from its copyin/out.
Use to avoid all the stackgap stuff in compat code.

branches: 1.53.2; 1.53.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.52.2;
Merge newlock2 to head.

branches: 1.51.20;
merge ktrace-lwp.

branches: 1.50.2;
Fix shadow warnings.

sunos_ioctl(): acquire a reference to the file.
This also fixes a locking botch reported in PR#25738.

Constify the speedtab arrays

branches: 1.47.2; 1.47.4;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

More changes for providing lwpid for ktrace (sparc GENERIC built)

Change 'data' argument to fo_ioctl and fo_fcntl from 'caddr_t' to 'void *'.
Avoids a lot of casting and removes the need for some line breaks.
Removed a load of (caddr_t) casts from calls to copyin/copyout as well.
(approved by christos - he has a plan to remove caddr_t...)

Make updating a file's reference and use count MP-safe.

Merge the nathanw_sa branch.

Spell output with two ts.

Statements must follow labels.

branches: 1.40.4; 1.40.6;
make the stackgap_{init,alloc} functions MP friendly (i.e. pass struct proc *
in, instead of using curproc). While there add an optional size argument to
stackgap_init.

move the COMPAT_SUNOS TIOCGPGRP handling in the compat sunos code proper.
this is the final fix needed for it to run properly as an LKM. no more
COMPAT_SUNOS hacks around the tree!

add RCSIDs (including regeneration of files as appropriate)

branches: 1.37.2;
Fix a partial construction problem that can cause race conditions
between creation of a file descriptor and close(2) when using kernel
assisted threads. What we do is stick descriptors in the table, but
mark them as "larval". This causes essentially everything to treat
it as a non-existent descriptor, except for fdalloc(), which sees a
filled slot so that it won't (incorrectly) allocate it again. When
a descriptor is fully constructed, the code that has constructed it
marks it as "mature" (which actually clears the "larval" flag), and
things continue to work as normal.

While here, gather all the code that gets a descriptor from the table
into a fd_getfile() function, and call it, rather than having the
same (sometimes incorrect) code copied all over the place.

use _KERNEL_OPT.

branches: 1.35.2;
add missing !LKM check, noted by <tih@kpnQwest.no>

sunos_ioctl.c is included by sunos32_ioctl.c. include the sunos32 &
netbsd32 headers if we are in sunos32 mode.

add e_path (emulation path) to struct emul, which replaces emulation-specific
*_emul_path variables

change macros CHECK_ALT_{CREAT|EXIST} to use that, 'root' doesn't need
to be passed explicitly any more and *_CHECK_ALT_{CREAT|EXIST} are removed
change explicit emul_find() calls in probe functions to get the emulation
path from the checked exec switch entry's emulation

remove no longer needed header files

add e_flags and e_syscall to struct emul; these are unsed and empty for now

fix LP64 warnings.

Kill register declarations.

branches: 1.30.12;
bzero->memset, bcopy->memcpy, bcmp->memcmp

use <dev/sun/disklabel.h> for new (old) compat ioctls: DKIOCGGEOM, DKIOCINFO and DKIOCGPART

Pull in fcntl GETLK/SETLK/UNLK compat functions from SVR4 sibling.

- Doesn't need to privately define AUDIO_SPEAKER and AUDIO_HEADPHONE any
longer.
- XXX Don't access the nonexistant backlog structure element.

Ignore use of sunos_audioio.monitor_gain because it has no equivalent in the
audio sub-system. It used to use the ``__spare'' member of the audio_info
struct, but that has been removed.

Translate EIO to ENOTTY after a SunOS `TIOCGETPGRP' (tcgetpgrp(3)) fails
on a pty (see also kern/pty_tty.c).

I_SIGSET => I_SETSIG (pointed out by Greg Earle).

Bring prototypes into scope and fix compiler warnings.

Insert sunos_sys_fcntl().

Prefix names of system call implementation functions with `sys_'.

Make system calls conform to a standard prototype and bring those
prototypes into scope.

Go with the flow; use `/emul/sunos' pseudo-root (from Matthew Green).
Note: sunos_stat() and sunos_lstat() were added too.

init `mode' field in sunaudiogetinfo().

Fix TCGETA compat, from Matthew Green.
SunOS `setaudioinfo' does implicit `getaudioinfo'.
Recognise streams flush/setsig ioctls.

Move SunOS audio_info compat stuff here (from sparc/dev/bsd_audio.c).

improve VMIN/VTIME emulation (from chs+@CS.cmu.edu)

fix CS[5678] code

rename, new syscall interface, etc.

pay a small amount of lip service to the new syscall args mechanism.
In reality, none of these will compile.

New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD'

bail on SIOCGARP

Fix typo.
Give TIOCTCNTL a try.

Fix spelling error in Copyright notice

sync with magnum

m68k/sparc sunos binary compatibility code, pulled down from magnum branch
for consumption by the m68k masses

branches: 1.5.2;
moved from arch/sparc/sunos to compat/sunos

fake support for TIOCSSOFTCAR and TIOCGSOFTCAR
(one of which used to point to NetBSD's TIOCSTAT :-)

disassembly shows the %f2 register being accessed, and of course the
kernel panics.
why wasit using %f2? some expressions were too complicated and gcc2 (with
the optimizer off, mind you) ran out of integer registers and thus used
started using a float register for a temporary.

replacement set of sun ioctl functions. markus wild added a
whole slew of new ioctl's that are much more close to reality.

the comat-sunos tree is now almost good enough to be used in
both m68k and sparc kernels.

Chris Torek's sparc port. Missing lots of things.

sys/compat: Memset zero before copyout.

Just in case of uninitialized padding which would lead to kernel
stack disclosure. If the compiler can prove the memset redundant
then it can optimize it away; otherwise better safe than sorry.

use strlcpy() for the uts conversion, makes the code simpler and more readable.

replace memcpy() with src bounds overflow with single char write.

make this compile again.

branches: 1.173.2;
Stack buffers mustn't escape their scope. PR 54326 from David Binderman

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)

branches: 1.171.2; 1.171.4;
Fail, don't panic, on bad dirents from file system.

Controllable via puffs from userland.

From Ilja Van Sprundel.

branches: 1.170.10;
Change do_sys_mount() so that it only takes as argument the type of the
drive instead of its associated vfsops. Makes it more friendly, and allows
compat binaries to autoload VFS modules if needed.

sent on tech-kern@, ok christos@

branches: 1.169.2;
Try not to use f_data, use f_{vnode,socket,pipe,mqueue,kqueue,ksem} to get
a correctly typed pointer.

branches: 1.168.14; 1.168.18; 1.168.20; 1.168.28; 1.168.34; 1.168.36; 1.168.40;
Clean up vnode lock operations pass 2:

VOP_UNLOCK(vp, flags) -> VOP_UNLOCK(vp): Remove the unneeded flags argument.

Welcome to 5.99.32.

Discussed on tech-kern.

branches: 1.167.2;
One more overcomplex ENOSYS bites the dust.

When implementing "read directory", when there are too many empty entries
in a row, and we need to try to read the next block, and have passed a
non-NULL cookie pointer to VOP_READDIR, ensure that we free the cookie
buffer before re-doing VOP_READDIR, so that we don't leak memory.
This fix is similar to nfs_serv.c revisions 1.115 + 1.124.

This should fix the long-standing problem observed by e.g. using Linux-
emulated programs to take backup of servers, which is one of the problems
which were reported in PR#42661.

Thanks to pooka@ for the hints for traversing the VOP* layer.

branches: 1.165.2;
Convert 67 namei call sites to use namei_simple, in these functions:

check_console, veriexecclose, veriexec_delete, veriexec_file_add,
emul_find_root, coff_load_shlib (sh3 version), coff_load_shlib,
compat_20_sys_statfs, compat_20_netbsd32_statfs,
ELFNAME2(netbsd32,probe_noteless), darwin_sys_statfs,
ibcs2_sys_statfs, ibcs2_sys_statvfs, linux_sys_uselib,
osf1_sys_statfs, sunos_sys_statfs, sunos32_sys_statfs,
ultrix_sys_statfs, do_sys_mount, fss_create_files (3 of 4),
adosfs_mount, cd9660_mount, coda_ioctl, coda_mount, ext2fs_mount,
ffs_mount, filecore_mount, hfs_mount, lfs_mount, msdosfs_mount,
ntfs_mount, sysvbfs_mount, udf_mount, union_mount, sys_chflags,
sys_lchflags, sys_chmod, sys_lchmod, sys_chown, sys_lchown,
sys___posix_chown, sys___posix_lchown, sys_link, do_sys_pstatvfs,
sys_quotactl, sys_revoke, sys_truncate, do_sys_utimes, sys_extattrctl,
sys_extattr_set_file, sys_extattr_set_link, sys_extattr_get_file,
sys_extattr_get_link, sys_extattr_delete_file,
sys_extattr_delete_link, sys_extattr_list_file, sys_extattr_list_link,
sys_setxattr, sys_lsetxattr, sys_getxattr, sys_lgetxattr,
sys_listxattr, sys_llistxattr, sys_removexattr, sys_lremovexattr

All have been scrutinized (several times, in fact) and compile-tested,
but not all have been explicitly tested in action.

XXX: While I haven't (intentionally) changed the use or nonuse of
XXX: TRYEMULROOT in any of these places, I'm not convinced all the
XXX: uses are correct; an audit might be desirable.

branches: 1.164.2;
Update for compat_50 stuff. (compile test only)

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

Remove LKMs and switch to the module framework, pass 1.

Proposed on tech-kern@.

branches: 1.161.2; 1.161.4; 1.161.8;
convert some [left behind] compat code to use new sockopt API

branches: 1.160.2;
Replace references to getsock/getvnode.

branches: 1.159.4; 1.159.6; 1.159.8;
Catch up with descriptor handling changes. See kern_descrip.c revision
1.173 for details.

branches: 1.158.6;
Remove now superflous (and wrong) extern declaration for maxfiles.

Convert all the system call entry points from:
int foo(struct lwp *l, void *v, register_t *retval)
to:
int foo(struct lwp *l, const struct foo_args *uap, register_t *retval)
Fixup compat code to not write into 'uap' and (in some cases) to actually
pass a correctly formatted 'uap' structure with the right name to the
next routine.
A few 'compat' routines that just call standard ones have been deleted.
All the 'compat' code compiles (along with the kernels required to test
build it).
98% done by automated scripts.

branches: 1.156.4;
Remove cn_lwp from struct componentname. curlwp should be used
from on. The NDINIT() macro no longer takes the lwp parameter and
associates the credentials of the calling thread with the namei
structure.

ANSIfy most of the function definitions in sys/compat (but not ndis).
All by the magic of sed ...

Remove all the __P

branches: 1.153.2;
more VFS_STATVFS(x,y,z) fallout; change them to VFS_STATVFS(x,y). (hi, pooka!)

branches: 1.152.4;
Merge file descriptor locking, cwdi locking and cross-call changes
from the vmlocking branch.

branches: 1.151.6; 1.151.8; 1.151.10;
include <compat/sys/mount.h> for MFSNAMELEN

Change compat mount code to pass do_sys_mount() kernel resident buffers.
Possibly the standard nfs code needs teaching how to set the length and
address family in order to support non-netbsd sockaddr.
There are now no active stackgap() calls in the compat tree.

Change interface to settimeofday1() so that it can also be used from
compat code in order to avoid the stackgap.

and unbork some more changes.

Change the way that emulations locate files within the emulation root to
avoid having to allocate space in the 'stackgap'
- which is very LWP unfriendly.
The additional code for non-emulation namei() is trivial, the reduction for
the emulations is massive.
The vnode for a processes emulation root is saved in the cwdi structure
during process exec.
If the emulation root the TRYEMULROOT flag are set, namei() will do an initial
search for absolute pathnames in the emulation root, if that fails it will
retry from the normal root.
".." at the emulation root will always go to the real root, even in the middle
of paths and when expanding symlinks.
Absolute symlinks found using absolute paths in the emulation root will be
relative to the emulation root (so /usr/lib/xxx.so -> /lib/xxx.so links
inside the emulation root don't need changing).
If the root of the emulation would be returned (for an emulation lookup), then
the real root is returned instead (matching the behaviour of emul_lookup,
but being a cheap comparison here) so that programs that scan "../.."
looking for the root dircetory don't loop forever.
The target for symbolic links is no longer mangled (it used to get the
CHECK_ALT_xxx() treatment, so could get /emul/xxx prepended).
CHECK_ALT_xxx() are no more. Most of the change is deleting them, and adding
TRYEMULROOT to the flags to NDINIT().
A lot of the emulation system call stubs could now be deleted.

branches: 1.146.2; 1.146.4;
- don't forget to add * to all params
- use (char *) where pointer arith is required

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

branches: 1.144.2;
Merge newlock2 to head.

branches: 1.143.2;
Clean some KAUTH_GENERIC_ISSUSER usage in compat code.

branches: 1.142.2; 1.142.4;
When calling PTRACE from an LKM, use sysent[SYS_ptrace].sy_call in case
the sys_ptrace symbol isn't present.

Update for options PTRACE.

Use the LWP cached credentials where sane.

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: 1.138.4;
- include kauth.h for kauth_authorize_generic.
- wrap a long line.

integrate kauth.

branches: 1.136.2; 1.136.4; 1.136.6;
merge yamt-uio_vmspace branch.

- use vmspace rather than proc or lwp where appropriate.
the latter is more natural to specify an address space.
(and less likely to be abused for random purposes.)
- fix a swdmover race.

branches: 1.135.2; 1.135.4; 1.135.6;
__inline__ -> inline

merge ktrace-lwp.

This now needs <compat/sys/signal.h> to build.

branches: 1.132.2;
PR/29696: Joel Carnat: NetBSD freezes when accessing smbfs mounted FS with
firefox/linux due to compat getdents() call assumption that all filesystems
support cookies.

branches: 1.131.2;
nuke trailing whitespace

branches: 1.130.4; 1.130.6;
There's no need to pass a proc value when using UIO_SYSSPACE with
vn_rdwr(9) and uiomove(9).

OK'd by Jason Thorpe

Constify sreq2breq

Constify a few read-only arrays/variables.

Make it compile again after statvfs import.

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

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.124.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

More changes for providing lwpid for ktrace (sparc GENERIC built)

Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V

use strlcpy
[compat/svr4_32 should have bound check for SVR4_32_AUX_ARGSIZ]

Make updating a file's reference and use count MP-safe.

Cull unused variables. Sigh.

PS - Cross compilers are cool.

No need to pick a "default address" for mmap in compat code, since we
merely call sys_mmap() at the end anyway, and that will pick the
address for us, if it's needed.

Likewise for checking if /dev/zero is being mapped.

Merge the nathanw_sa branch.

Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.

Add kernel support for having userland provide the signal trampoline:

* struct sigacts gets a new sigact_sigdesc structure, which has the
sigaction and the trampoline/version. Version 0 means "legacy kernel
provided trampoline". Other versions are coordinated with machine-
dependent code in libc.
* sigaction1() grows two more arguments -- the trampoline pointer and
the trampoline version.
* A new __sigaction_sigtramp() system call is provided to register a
trampoline along with a signal handler.
* The handler is no longer passed to sensig() functions. Instead,
sendsig() looks up the handler by peeking in the sigacts for the
process getting the signal (since it has to look in there for the
trampoline anyway).
* Native sendsig() functions now select the appropriate trampoline and
its arguments based on the trampoline version in the sigacts.

Changes to libc to use the new facility will be checked in later. Kernel
version not bumped; we will ride the 1.6C bump made recently.

branches: 1.114.4;
make the stackgap_{init,alloc} functions MP friendly (i.e. pass struct proc *
in, instead of using curproc). While there add an optional size argument to
stackgap_init.

move the COMPAT_SUNOS SO_BROADCAST hack out of uipc_socket.c into the
compat/sunos code. besides being cleaner this allows the sunos LKM
to properly work without any special kernel hacks.

Don't define COMPAT_SUNOS here. It is defined in opt_compat_sunos.h
and <sys/ioctl.h> and <sys/tty.h> include it properly.

XXX Is this needed for LKM?

add RCSIDs (including regeneration of files as appropriate)

branches: 1.110.2; 1.110.4;
Fix a partial construction problem that can cause race conditions
between creation of a file descriptor and close(2) when using kernel
assisted threads. What we do is stick descriptors in the table, but
mark them as "larval". This causes essentially everything to treat
it as a non-existent descriptor, except for fdalloc(), which sees a
filled slot so that it won't (incorrectly) allocate it again. When
a descriptor is fully constructed, the code that has constructed it
marks it as "mature" (which actually clears the "larval" flag), and
things continue to work as normal.

While here, gather all the code that gets a descriptor from the table
into a fd_getfile() function, and call it, rather than having the
same (sometimes incorrect) code copied all over the place.

use _KERNEL_OPT.

branches: 1.108.2;
Cast 32bit sunos_nfs_arg member to (char *)(long) to avoid warning
after sunos.h change (cast is safe; a SunOS binary will pas a 32 bit
pointer).

make LKM safe

add e_path (emulation path) to struct emul, which replaces emulation-specific
*_emul_path variables

change macros CHECK_ALT_{CREAT|EXIST} to use that, 'root' doesn't need
to be passed explicitly any more and *_CHECK_ALT_{CREAT|EXIST} are removed
change explicit emul_find() calls in probe functions to get the emulation
path from the checked exec switch entry's emulation

remove no longer needed header files

add e_flags and e_syscall to struct emul; these are unsed and empty for now

remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

Kill register declarations.

Centralise the declarations of cpu_model, machine, machine_arch,
osrelease, and ostype and remove "extern char foo[];" (for hostname
and domainname too).

Also delete redunctant decl of boottime in kern_info_43.c.

Merge parts of chs-ubc2 into the trunk:
* Remove the casts to vaddr_t from the round_page() and trunc_page() macros to
make them type-generic, which is necessary i.e. to operate on file offsets
without truncating them.
* In due course, cast pointer arguments to these macros to an appropriate
integral type (paddr_t, vaddr_t).

Originally done by Chuck Silvers, updated by myself.

branches: 1.101.2;
Add "use counting" to file entries. When closing a file, and it's reference
count is 0, wait for use count to drain before finishing the close.

This is necessary in order for multiple processes to safely share file
descriptor tables.

branches: 1.100.4;
Use regular system fchroot, now that we have it.

Const poisoning and CHECK_ALT_CREAT fixes

g/c SA_USERTRAMP (ok'd by pk)

get "opt_compat_xxx.h" includes out of <sys/signal.h>

Fix copyout() argument switch.

Signal compat: sunos sigset_t conversions;
new sunos_sigvec() & sunos_sigpending()

ufs_readdir no longer checks if vp->v_type != VDIR so
the individual emulated readdirs must check.
Since netbsd and freebsd return EINVAL for the error
and I don't know what the other platforms do, return
EINVAL for them too.

move <vm/vm_swap.h> to <sys/swap.h>. <vm/vm_swap.h> still works for now (goes away later)

bzero->memset, bcopy->memcpy, bcmp->memcmp

Include NFSSERVER option header opt_nfsserver.h.

Make this compile again.

Only free cookiebuf when sure that the vop actually allocated it.

Merge with Lite2 + local changes

Include the NFS option header.

branches: 1.86.2;
Update for new msync (== __msync13), use flags

Simplify use of round_page() like in other emulations.

cast to void * not caddr_t

Fix braino in my interpretation of the eof flag to VOP_READDIR.

Signal error when getting a 64 bit offset cookie that can't be stored
in 32 bits. Provide an error message to the user, and return EINVAL.
Also, pay attention to the EOF flag from VOP_READDIR. Correct a
misspell in a panic message.

branches: 1.81.2;
Fix "missing entries" bug when reading large directories: When reading a
directory and running out of space in the dest buffer, off should point to the
current entry (which was not saved) and not to the next.
I discovered this bug using linux and SunOS emulation over NFS, but seems to
affect other emulations as well.

branches: 1.80.4;
Garbage-collect sunos_sys_swapon(); it is not needed.

bring mrg-vm-swap2 onto mainline.

branches: 1.78.2;
Pass the vnode type to vaccess(), and use it when checking VEXEC. Make sure
that the mode bits passed to vaccess() and returned by foo_getattr() contain
only permission bits.

VEXEC -> VLOOKUP, as appropriate.

NFSCLIENT -> NFS

branches: 1.75.2;
This recently stopped compiling due to a warning about const being
dropped. This fix suggested by cgd.

Remove STACKGAPBASE dependencies.

catch up with Jason's changes.

Implement poll(2).

Define execv() and execve() consistently across emulations.
Do path name translation.

add obsolete stime(2)

Implement sunos_sys_execve(). The previous code simply called
sys_execve() without doing an alternate patch check, which was
incorrect. Bug pointed out by Krister Walfridsson <cato@df.lth.se>
on port-sparc@NetBSD.ORG.

update sunos_sys_reboot() to actually work again.

Change reboot(2) to take two arguments: bootopt like normal and also
a boot string for firmware that can do this, such as the SPARC and
the sun3 models. It is currently silently ignored on all other
hardware now, however. The MD function "boot()" has been changed to
also take a char *.

avoid unnecessary checks of m_get/MGET/etc.'s return values. When
they're called with M_WAIT, they are defined to never return NULL.

branches: 1.65.4;
remove include of <sys/cpu.h>

Bring prototypes into scope and fix compiler warnings.

dir => dirent

If NFS `rsize' is specified, set `readdirsize' too.

Adapt compat NFS mount code to NFSv3.

Implement vhangup(); more or less as suggested in PR#1560 (matthew green).
I'm vrele'ing s_ttyvp here too, so sys_exit() won't have to go over it
again.

Reverse pk's changes from 1.57; the faked cookies are not valid,
and are no longer necessary now that NFS provides cookies.

ufs ==> ffs

Gets NFS-mounted /emul/sunos going again by faking readdir cookies if
not supported by VOP_READDIR().

branches: 1.56.2;
Use cookies for directory offset, mostly from Greg Hudson.

Prefix names of system call implementation functions with `sys_'.

Make system calls conform to a standard prototype and bring those
prototypes into scope.

Catch up with renamed SA_DISABLE flag and update
sunos_sigvec to allow the new SA_RESETHAND flag.

Start using sunos_sigvec().

* Don't include sys/exec.h explicitly--it's not protected against multiple
inclusions and compat_util.h now includes it.
* Declare struct emul *e=p->p_emul in a couple of places so we can use
STACKGAPBASE macro (should this macro be modified to take a struct
emul * or struct proc * parameter?).
* Declare extern struct emul emul_sunos for sunos_sigvec's comparison.

Use compat_util.[ch]

don't assume the f_fsnamelen is nul-truncated or longer than MFSNAMELEN

Go with the flow; use `/emul/sunos' pseudo-root (from Matthew Green).
Note: sunos_stat() and sunos_lstat() were added too.

Try to make the reboot system call compile under sun3 with RB_STRING
support [not tested]
Add files.sunos
Rename system call switch table file from sunos_init_sysent.c to sunos_sysent.c
like other emulations.

Make sunos_reboot(RB_STRING,"...") work for sun3.
Could be made to work for sparc too.

Fix compiler error in sunos_reboot().

Added sunos_reboot().

Update to use timer{add,sub}().

copy*str() should use size_t.

timevaladd -> __timeradd (AGAIN)

correct ansi glitch

mode/flags confusion in sunos_open().

Use __timeradd(), not timervaladd().

Convert SunOS IP multicast socket options.

m68k does not have PT_{SET,GET}FPREGS

ptrace from chs+@CS.cmu.edu, poll from christos

fix sunos_mmap

rename, new syscall interface, etc.

pay a small amount of lip service to the new syscall args mechanism.
In reality, none of these will compile.

use STACKGAPBASE

New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD'

sun_mount: fill in one more field.

async_daemon only if NFSCLIENT

Adapt to 4.4-lite.

Minor change.

tricky

maxfdescs -> maxfiles

iszerodev

fix uname after sysctl

p->p_sig -> p->p_siglist

fix my forgetfulness; from gwr

expand the rlimit struct, kill last vestiges of off_t bogosity.

kill syscall name aliases. no user-visible changes

SunOS's RLIMIT_NOFILE is different: add sun_[gs]rlimit().

make sunos mount(2) work again

sickness to get SunOS mmap right

expand uid_t/gid_t/off_t

DoH!

first cut at a SUNOS_COMPAT sysconf() system call.

place conditional around sun_nfssvc.

m68k/sparc sunos binary compatibility code, pulled down from magnum branch
for consumption by the m68k masses

branches: 1.9.2;
moved from arch/sparc/sunos to compat/sunos

new compat functions: sun_open, sun_auditsys, sun_setpgid, sun_uname
some from Markus.

specdev.h moves

silly typo

support both sun3 & sparc concepts of minor/major #'s for /dev/zero

fix sun_getdents()
fix sun_mmap()
Note: delete the "struct dirent" in here when sys/dirent.h is created.

Add a stub auditsys() system call that does nothing.
SunOS /sbin/fsck calls it..

various changes, suffice to say that 4.4 syscalls do not look like ours

Chris Torek's sparc port. Missing lots of things.

Rather than keeping a separate mutex, condvar, and pserialize for each
module hook, we can share a common set of synchronization structures.
This cuts the amount of cacheline_aligned data for these structures by
50%.

Note that we still have a per-hook localcount, since we need to count
individual references.

As discussed with riastradh@

Welcome to 9.99.22 !

Rename the MODULE_*_HOOK() macros to MODULE_HOOK_*() as briefly
discussed on irc.

NFCI intended.

Ride the earlier kernel bump - it;s getting crowded.

The sunos and sunos32 modules require compat_09, not compat (the
latter no longer exists).

Should fix "missing prerequisite" errors seen during qemu boot
of sparc64's MODULAR kernel.

Merge the [pgoyette-compat] branch

branches: 1.3.28; 1.3.30;
c99 initializers for struct execsw

exec modules need to be of the exec kind

branches: 1.1.4; 1.1.6; 1.1.8; 1.1.12; 1.1.24; 1.1.34; 1.1.38;
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

Regen after -r1.82 of compat_sunos syscalls.master last September.

(Apparently forgotten.)

"Treat valsize as unsigned"

Merge the [pgoyette-compat] branch

Regen

branches: 1.96.2; 1.96.4;
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/sunos: Drop SYS_vadvise

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

Sponsored by <The NetBSD Foundation>

compat/sunos: Drop SYS_sbrk

sbrk - change data segment size

This syscall is dummy since the inception of the project.

Sponsored by <The NetBSD Foundation>

compat sunos: Drop the sstk(2) syscall

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

Sponsored by <The NetBSD Foundation>

regen

branches: 1.91.4;
regen

branches: 1.90.2;
regen

branches: 1.89.2;
regen

regen

branches: 1.87.6;
Regen for dup/dup2/dup3 argument types fix.

branches: 1.86.10; 1.86.20; 1.86.24;
regen: ENOSYS nfssvc honestly

branches: 1.85.2;
Regen (new makesyscalls.sh)

Regen to prove I didn't screw up the conversion: purely RCSID changes.

regen: unimpl police

Regen from syscalls.master rev 1.72:
> Update for compat_50 stuff. (compile test only)

Regen.

branches: 1.80.2; 1.80.4;
Regen from syscalls.master rev 1.69:
> Include <sys/sched.h> before <sys/syscallargs.h> for cpuset_t.

branches: 1.79.6; 1.79.10; 1.79.12; 1.79.14;
Remove now superflous (and wrong) extern declaration for maxfiles.

regen

branches: 1.77.16; 1.77.22; 1.77.24; 1.77.28;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.76.8;
Regen.

Regen (for PTRACE).

regen

branches: 1.73.4; 1.73.8;
merge ktrace-lwp.

branches: 1.72.4;
regen

regen

branches: 1.70.2; 1.70.10; 1.70.12;
Regen for correct RCS ID.

Regen: Merge the nathanw_sa branch.

set nsysent to 256

move the COMPAT_SUNOS SO_BROADCAST hack out of uipc_socket.c into the
compat/sunos code. besides being cleaner this allows the sunos LKM
to properly work without any special kernel hacks.

add RCSIDs (including regeneration of files as appropriate)

branches: 1.65.2;
use _KERNEL_OPT.

branches: 1.64.2;
Regen; add sy_flags.

Regen.

Regen.

update for changed makesyscalls.master

regen

branches: 1.59.2;
Regen.

branches: 1.58.4;
Use regular system fchroot, now that we have it.

Regen

regen

Regen

Regen.

regen.

Regen: defopt NFSSERVER

Regen: makesyscalls.sh changed.

regen; syscalls.master and makesyscalls.sh changed.

Regen.

Regen: back out RCD ID related changes.

regened with RCSIDs in place

Regen.

Regen

Regen.

branches: 1.43.4;
Regen: Use compat_12_sys_swapon().

bring mrg-vm-swap2 onto mainline.

branches: 1.41.6;
Syscalls.master chagned, regen. (NFSCLIENT -> NFS)

branches: 1.40.2;
Regen; makesyscalls.sh emits comments now.

Regen.

Regen.

regen syscall tables

Regen; syscalls.master changed.

Regen.

branches: 1.34.4;
Added a missing Makefile and run it
Moved the prototyp for sunos_sendsig in an #ifndef sparc

Reran makesyscalls.sh.

makesyscalls.sh changed.

Start using sunos_sigvec().

Oops... NOARGS for compat_43_sigvec.

syscalls.master changed.

Syscalls.master was changed

Go with the flow; use `/emul/sunos' pseudo-root (from Matthew Green).
Note: sunos_stat() and sunos_lstat() were added too.

syscalls.master was changed

- added struct emul to all emulations.
- removed all setup functions.
- added copyargs() functions where needed.

update

update

new syscalls

syscalls.master changed