Commit Graph

105 Commits

Author SHA1 Message Date
John Baldwin
48052f99e7 - Use a custom version of copyinuio() to implement readv/writev using
kern_readv/writev.
- Use kern_settimeofday() and kern_adjtime() rather than stackgapping it.
2005-03-31 22:58:13 +00:00
Paul Saab
b8a4edc17e Use kern_kevent instead of the stackgap for 32bit syscall wrapping.
Submitted by:	jhb
Tested on:	amd64
2005-03-01 17:45:55 +00:00
Paul Saab
5d83706b23 Ooops. I will compile test before committing. The stackgap version
of kevent32 will be going away shortly, so this is temporary until
I commit the non-stackgap version.
2005-03-01 13:50:57 +00:00
Paul Saab
a95e8cd364 Correct the freebsd32_kevent prototype. 2005-03-01 06:32:53 +00:00
John Baldwin
ead6bc8265 Regen. 2005-02-24 18:24:29 +00:00
John Baldwin
ddcc2a3ff3 Use msync() to implement msync() for freebsd32 emulation. This isn't quite
right for certain MAP_FIXED mappings on ia64 but it will work fine for all
other mappings and works fine on amd64.

Requested by:	ps, Christian Zander
MFC after:	1 week
2005-02-24 18:24:16 +00:00
John Baldwin
38765a3178 - Add a custom version of exec_copyin_args() to deal with the 32-bit
pointers in argv and envv in userland and use that together with
  kern_execve() and exec_free_args() to implement freebsd32_execve()
  without using the stackgap.
- Fix freebsd32_adjtime() to call adjtime() rather than utimes().  Still
  uses stackgap for now.
- Use kern_setitimer(), kern_getitimer(), kern_select(), kern_utimes(),
  kern_statfs(), kern_fstatfs(), kern_fhstatfs(), kern_stat(),
  kern_fstat(), and kern_lstat().

Tested by:	cokane (amd64)
Silence on:	amd64, ia64
2005-02-18 18:56:04 +00:00
Paul Saab
0e214fad37 Add a 32bit syscall wrapper for modstat
Obtained from:	Yahoo!
2005-01-19 17:53:06 +00:00
Paul Saab
7fdf2c856f - rename nanosleep1 to kern_nanosleep
- Add a 32bit syscall entry for nanosleep

Reviewed by:	peter
Obtained from:	Yahoo!
2005-01-19 17:44:59 +00:00
John Baldwin
d7d1139749 Regenerate. 2005-01-04 18:54:40 +00:00
John Baldwin
20ae37df8c Partial sync up to the master syscalls.master file:
- Mark mount, unmount and nmount MPSAFE.
- Add a stub for _umtx_op().
- Mark open(), link(), unlink(), and freebsd32_sigaction() MPSAFE.

Pointy hats to:	several
2005-01-04 18:53:32 +00:00
David Schultz
6004362e66 Don't include sys/user.h merely for its side-effect of recursively
including other headers.
2004-11-27 06:51:39 +00:00
Mark Santcroos
463b173e50 Rebuild from compat/freebsd32/syscalls.master:1.43
Reviewed by:	imp, phk, njl, peter
Approved by:	njl
2004-11-18 23:56:09 +00:00
Mark Santcroos
f16ab45fbc 32-bit FreeBSD ABI compatibility stubs from syscalls.master:1.179
Reviewed by:	imp, phk, njl, peter
Approved by:	njl
2004-11-18 23:54:26 +00:00
Robert Watson
a4bde6f695 Rebuild from FreeBSD32 syscalls.master:1.42. 2004-10-23 20:05:42 +00:00
Robert Watson
8e36528346 32-bit FreeBSD ABI compatibility stubs from syscalls.master:1.178. 2004-10-23 20:04:56 +00:00
Peter Wemm
a7bc3102c4 Put on my peril sensitive sunglasses and add a flags field to the internal
sysctl routines and state.  Add some code to use it for signalling the need
to downconvert a data structure to 32 bits on a 64 bit OS when requested by
a 32 bit app.

I tried to do this in a generic abi wrapper that intercepted the sysctl
oid's, or looked up the format string etc, but it was a real can of worms
that turned into a fragile mess before I even got it partially working.

With this, we can now run 'sysctl -a' on a 32 bit sysctl binary and have
it not abort.  Things like netstat, ps, etc have a long way to go.

This also fixes a bug in the kern.ps_strings and kern.usrstack hacks.
These do matter very much because they are used by libc_r and other things.
2004-10-11 22:04:16 +00:00
Mike Makonnen
401901ac43 Close a race between a thread exiting and the freeing of it's stack.
After some discussion the best option seems to be to signal the thread's
death from within the kernel. This requires that thr_exit() take an
argument.

Discussed with: davidxu, deischen, marcel
MFC after: 3 days
2004-10-06 14:23:00 +00:00
John Baldwin
78c85e8dfc Rework how we store process times in the kernel such that we always store
the raw values including for child process statistics and only compute the
system and user timevals on demand.

- Fix the various kern_wait() syscall wrappers to only pass in a rusage
  pointer if they are going to use the result.
- Add a kern_getrusage() function for the ABI syscalls to use so that they
  don't have to play stackgap games to call getrusage().
- Fix the svr4_sys_times() syscall to just call calcru() to calculate the
  times it needs rather than calling getrusage() twice with associated
  stackgap, etc.
- Add a new rusage_ext structure to store raw time stats such as tick counts
  for user, system, and interrupt time as well as a bintime of the total
  runtime.  A new p_rux field in struct proc replaces the same inline fields
  from struct proc (i.e. p_[isu]ticks, p_[isu]u, and p_runtime).  A new p_crux
  field in struct proc contains the "raw" child time usage statistics.
  ruadd() has been changed to handle adding the associated rusage_ext
  structures as well as the values in rusage.  Effectively, the values in
  rusage_ext replace the ru_utime and ru_stime values in struct rusage.  These
  two fields in struct rusage are no longer used in the kernel.
- calcru() has been split into a static worker function calcru1() that
  calculates appropriate timevals for user and system time as well as updating
  the rux_[isu]u fields of a passed in rusage_ext structure.  calcru() uses a
  copy of the process' p_rux structure to compute the timevals after updating
  the runtime appropriately if any of the threads in that process are
  currently executing.  It also now only locks sched_lock internally while
  doing the rux_runtime fixup.  calcru() now only requires the caller to
  hold the proc lock and calcru1() only requires the proc lock internally.
  calcru() also no longer allows callers to ask for an interrupt timeval
  since none of them actually did.
- calcru() now correctly handles threads executing on other CPUs.
- A new calccru() function computes the child system and user timevals by
  calling calcru1() on p_crux.  Note that this means that any code that wants
  child times must now call this function rather than reading from p_cru
  directly.  This function also requires the proc lock.
- This finishes the locking for rusage and friends so some of the Giant locks
  in exit1() and kern_wait() are now gone.
- The locking in ttyinfo() has been tweaked so that a shared lock of the
  proctree lock is used to protect the process group rather than the process
  group lock.  By holding this lock until the end of the function we now
  ensure that the process/thread that we pick to dump info about will no
  longer vanish while we are trying to output its info to the console.

Submitted by:	bde (mostly)
MFC after:	1 month
2004-10-05 18:51:11 +00:00
Peter Wemm
707783de09 Regen 2004-07-14 00:03:51 +00:00
Peter Wemm
1174965ee2 Unmapped syscalls should be NOPROTO so that we don't get a duplicate
prototype.  (kldunloadf in this case)
2004-07-14 00:03:30 +00:00
Poul-Henning Kamp
65a311fcb2 Give kldunload a -f(orce) argument.
Add a MOD_QUIESCE event for modules.  This should return error (EBUSY)
of the module is in use.

MOD_UNLOAD should now only fail if it is impossible (as opposed to
inconvenient) to unload the module.  Valid reasons are memory references
into the module which cannot be tracked down and eliminated.

When kldunloading, we abandon if MOD_UNLOAD fails, and if -force is
not given, MOD_QUIESCE failing will also prevent the unload.

For backwards compatibility, we treat EOPNOTSUPP from MOD_QUIESCE as
success.

Document that modules should return EOPNOTSUPP for unknown events.
2004-07-13 19:36:59 +00:00
Poul-Henning Kamp
1a946b9fef Add kldunloadf() system call. Stay tuned for follwing commit messages. 2004-07-13 19:35:11 +00:00
Marcel Moolenaar
cd28f17da2 Change the thread ID (thr_id_t) used for 1:1 threading from being a
pointer to the corresponding struct thread to the thread ID (lwpid_t)
assigned to that thread. The primary reason for this change is that
libthr now internally uses the same ID as the debugger and the kernel
when referencing to a kernel thread. This allows us to implement the
support for debugging without additional translations and/or mappings.

To preserve the ABI, the 1:1 threading syscalls, including the umtx
locking API have not been changed to work on a lwpid_t. Instead the
1:1 threading syscalls operate on long and the umtx locking API has
not been changed except for the contested bit. Previously this was
the least significant bit. Now it's the most significant bit. Since
the contested bit should not be tested by userland, this change is
not expected to be visible. Just to be sure, UMTX_CONTESTED has been
removed from <sys/umtx.h>.

Reviewed by: mtm@
ABI preservation tested on: i386, ia64
2004-07-02 00:40:07 +00:00
Marcel Moolenaar
c2589102b0 Regen. 2004-07-02 00:38:56 +00:00
Poul-Henning Kamp
f3732fd15b Second half of the dev_t cleanup.
The big lines are:
	NODEV -> NULL
	NOUDEV -> NODEV
	udev_t -> dev_t
	udev2dev() -> findcdev()

Various minor adjustments including handling of userland access to kernel
space struct cdev etc.
2004-06-17 17:16:53 +00:00
Marcel Moolenaar
c050455eac Fix build for non-COMPAT_FREEBSD4 configurations. Make the FreeBSD 4
statfs functions conditional upon the option.
2004-04-24 04:31:59 +00:00
Peter Wemm
5b3283b084 Regen 2004-04-14 23:17:57 +00:00
Peter Wemm
0c70bced57 Catch up to the not-so-recent statfs(2) changes. 2004-04-14 23:17:37 +00:00
Mike Makonnen
a73027fee9 Regen for libthr thread synchronization syscalls. 2004-03-27 14:34:17 +00:00
Mike Makonnen
1713a51661 Separate thread synchronization from signals in libthr. Instead
use msleep() and wakeup_one().

Discussed with: jhb, peter, tjr
2004-03-27 14:30:43 +00:00
John Baldwin
b7e23e826c - Replace wait1() with a kern_wait() function that accepts the pid,
options, status pointer and rusage pointer as arguments.  It is up to
  the caller to copyout the status and rusage to userland if needed.  This
  lets us axe the 'compat' argument and hide all that functionality in
  owait(), by the way.  This also cleans up some locking in kern_wait()
  since it no longer has to drop locks around copyout() since all the
  copyout()'s are deferred.
- Convert owait(), wait4(), and the various ABI compat wait() syscalls to
  use kern_wait() rather than wait1() or wait4().  This removes a bit
  more stackgap usage.

Tested on:	i386
Compiled on:	i386, alpha, amd64
2004-03-17 20:00:00 +00:00
Peter Wemm
fffaaed41a Regen (FWIW) 2004-02-21 23:38:58 +00:00
Peter Wemm
cdee486c65 Try and make the compat sigreturn prototypes closer to reality. 2004-02-21 23:37:33 +00:00
Daniel Eischen
51305c403f Regen. 2004-02-03 05:20:28 +00:00
Daniel Eischen
12ef052ac2 Sync with kern/syscalls.master. 2004-02-03 05:18:48 +00:00
Peter Wemm
996a568eda Regen 2004-01-28 23:45:48 +00:00
Peter Wemm
0e3a9619ad Add getitimer swab stub 2004-01-28 23:45:37 +00:00
Peter Wemm
bdbbbb1bb9 GC unused 'syshide' override to /dev/null. This was here to disable
the output of the namespc column.  Its functionality was removed some time
ago, but the overrides and the namespc column remained.
2003-12-24 00:32:07 +00:00
Peter Wemm
d1d7ef3e23 Regen (should be a NOP except for rcsid) 2003-12-23 04:07:47 +00:00
Peter Wemm
151e298ec2 GC unused namespc column. 2003-12-23 04:07:22 +00:00
Peter Wemm
cb925bec10 Regen 2003-12-23 03:21:49 +00:00
Peter Wemm
c725485111 freebsd32_fstat(2) is now MPSAFE 2003-12-23 03:21:06 +00:00
Peter Wemm
34eda6348d Rather than screw around with the (unsafe) stackgap, call vn_stat/fo_stat
directly for stat/fstat/lstat syscall emulation.  It turns out not only
safer, but the code is smaller this way too.
2003-12-23 03:20:49 +00:00
Peter Wemm
096cced7fb Regen 2003-12-23 02:48:58 +00:00
Peter Wemm
5cb0e301a4 Eliminate stackgap usage for the (woefully incomplete) path translations
since it isn't needed here anymore.
Use standard open(2)/access(2) and chflags(2) syscalls now.
2003-12-23 02:48:11 +00:00
Peter Wemm
65365aa0c6 regen 2003-12-11 02:36:37 +00:00
Peter Wemm
ca40b45fb7 Mark freebsd32_gettimeofday() as mpsafe 2003-12-11 02:36:07 +00:00
Peter Wemm
4eeb271ab4 Just implementing a 32 bit version of gettimeofday() was smaller than
the wrapper code.  And it doesn't use the stackgap as a bonus.
2003-12-11 02:34:49 +00:00
Peter Wemm
d8411ca6b7 Regen 2003-12-10 22:33:45 +00:00