Commit Graph

300 Commits

Author SHA1 Message Date
ad
284c2b9aef Merge proc::p_mutex and proc::p_smutex into a single adaptive mutex, since
we no longer need to guard against access from hardware interrupt handlers.

Additionally, if cloning a process with CLONE_SIGHAND, arrange to have the
child process share the parent's lock so that signal state may be kept in
sync. Partially addresses PR kern/37437.
2008-04-24 18:39:20 +00:00
ad
6d70f903e6 Network protocol interrupts can now block on locks, so merge the globals
proclist_mutex and proclist_lock into a single adaptive mutex (proc_lock).
Implications:

- Inspecting process state requires thread context, so signals can no longer
  be sent from a hardware interrupt handler. Signal activity must be
  deferred to a soft interrupt or kthread.

- As the proc state locking is simplified, it's now safe to take exit()
  and wait() out from under kernel_lock.

- The system spends less time at IPL_SCHED, and there is less lock activity.
2008-04-24 15:35:27 +00:00
ad
be04ac4896 Make rusage collection per-LWP and collate in the appropriate places.
cloned threads need a little bit more work but the locking needs to
be fixed first.
2008-03-27 19:06:51 +00:00
ad
a9ca7a3734 Catch up with descriptor handling changes. See kern_descrip.c revision
1.173 for details.
2008-03-21 21:54:58 +00:00
yamt
97436a1e88 fix malloc type mismatches. 2008-01-03 14:25:49 +00:00
dsl
2fb0ada366 Fix build of macppc with COMPAT_MACH 2007-12-29 18:12:37 +00:00
perry
b6a2ef7569 Convert many of the uses of __attribute__ to equivalent
__packed, __unused and __dead macros from cdefs.h
2007-12-25 18:33:32 +00:00
christos
18bf1f8006 someone forgot /g in the vi s command. 2007-12-22 17:49:32 +00:00
dsl
6fb2884c3a regen 2007-12-20 23:07:25 +00:00
dsl
7e2790cf6f 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.
2007-12-20 23:02:38 +00:00
cube
d97f33f6eb Regen syscall tables for mach binary compatibility. Per request from dsl@. 2007-12-11 08:06:46 +00:00
dsl
be33a1a204 Increase the maximum number of syscall args.
sys_mach_sys_msg_overwrite_trap() has been overwriting stack!
2007-12-10 22:32:15 +00:00
dsl
28bae79b27 ANSIfy most of the function definitions in sys/compat (but not ndis).
All by the magic of sed ...
2007-12-08 18:35:53 +00:00
ad
a5bdf04ea6 lockmgr -> rwlock 2007-12-05 08:33:23 +00:00
ad
d831186d55 Merge scheduler changes from the vmlocking branch. All discussed on
tech-kern:

- Invert priority space so that zero is the lowest priority. Rearrange
  number and type of priority levels into bands. Add new bands like
  'kernel real time'.
- Ignore the priority level passed to tsleep. Compute priority for
  sleep dynamically.
- For SCHED_4BSD, make priority adjustment per-LWP, not per-process.
2007-11-06 00:42:39 +00:00
ad
63c4506184 Changes to make ktrace LKM friendly and reduce ifdef KTRACE. Proposed
on tech-kern.
2007-08-15 12:07:23 +00:00
yamt
f03010953f merge yamt-idlelwp branch. asked by core@. some ports still needs work.
from doc/BRANCHES:

	idle lwp, and some changes depending on it.

	1. separate context switching and thread scheduling.
	   (cf. gmcgarry_ctxsw)
	2. implement idle lwp.
	3. clean up related MD/MI interfaces.
	4. make scheduler(s) modular.
2007-05-17 14:51:11 +00:00
dsl
b8fbaf8c4b 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.
2007-04-22 08:29:55 +00:00
rmind
7b9af0160d Handle newlwp() error case. Currently, newlwp() cannot fail, but this
will likely change in the future.
2007-03-24 16:43:56 +00:00
ad
59d979c5f1 Pass an ipl argument to pool_init/POOL_INIT to be used when initializing
the pool's lock.
2007-03-12 18:18:22 +00:00
christos
53524e44ef Kill caddr_t; there will be some MI fallout, but it will be fixed shortly. 2007-03-04 05:59:00 +00:00
cube
632ece3eaf Introduce a new member to struct emul, e_startlwp, to be used by
sys__lwp_create.  It allows using the said syscall under COMPAT_NETBSD32.

The libpthread regression tests now pass on amd64 and sparc64.
2007-02-19 15:10:02 +00:00
pavel
934634a18c Change the process/lwp flags seen by userland via sysctl back to the
P_*/L_* naming convention, and rename the in-kernel flags to avoid
conflict. (P_ -> PK_, L_ -> LW_ ). Add back the (now unused) LSDEAD
constant.

Restores source compatibility with pre-newlock2 tools like ps or top.

Reviewed by Andrew Doran.
2007-02-17 22:31:36 +00:00
ad
b07ec3fc38 Merge newlock2 to head. 2007-02-09 21:55:00 +00:00
hubertf
eda05c6413 Remove more duplicate headers.
Patch by Slava Semushin <slava.semushin@gmail.com>

Again, this was tested by comparing obj files from a pristine and a patched
source tree against an i386/ALL kernel, and also for src/sbin/fsck_ffs,
src/sbin/fsdb and src/usr.sbin/makefs. Only changes in assert() line numbers
were detected in 'objdump -d' output.
2007-01-29 01:52:43 +00:00
elad
b31e9c44cf Consistent usage of KAUTH_GENERIC_ISSUSER. 2007-01-04 18:27:36 +00:00
christos
168cd830d2 __unused removal on arguments; approved by core. 2006-11-16 01:32:37 +00:00
christos
4d595fd7b1 - sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386
2006-10-12 01:30:41 +00:00
jmcneill
8c94a07b9d In mach_msg_receive(), don't declare 'struct proc *p' unless either
DEBUG_MACH_MSG or KTRACE are defined. The variable is unused otherwise,
resulting in a compile error. Fixes PR# 33211.
2006-09-23 03:34:19 +00:00
christos
489fe1e988 add missing initializers 2006-09-02 06:56:30 +00:00
christos
35ca6c8b5b Fix all the -D*DEBUG* code that it was rotting away and did not even compile.
Mostly from Arnaud Lacombe, many thanks!
2006-08-17 17:11:27 +00:00
ad
f474dceb13 Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
christos
3f0deeffa7 stack police: don't allocate PAGE_SIZE bytes on the stack. 2006-06-12 00:07:24 +00:00
christos
fc6d984beb kauth fallout 2006-05-15 00:05:16 +00:00
elad
874fef3711 integrate kauth. 2006-05-14 21:19:33 +00:00
christos
fc33769a12 gcc 4 does not like LHS casts. 2006-05-14 05:28:45 +00:00
drochner
2f9ef14bcf make this compile w/o KTRACE,
resolves PR kern/33212 by KIYOHARA Takashi
2006-04-07 09:23:16 +00:00
thorpej
be8b235384 Clean up fallout proc_is_traced_p() change:
- proc_is_traced_p() -> trace_is_enabled(), to match trace_enter() and
  trace_exit().
- trace_is_enabled() becomes a real function.
- Remove unnecessary include files from various files that used to care
  about KTRACE and SYSTRACE, but do no more.
2006-03-07 03:32:04 +00:00
perry
fbae48b901 Change "inline" back to "__inline" in .h files -- C99 is still too
new, and some apps compile things in C89 mode. C89 keywords stay.

As per core@.
2006-02-16 20:17:12 +00:00
christos
95e1ffb156 merge ktrace-lwp. 2005-12-11 12:16:03 +00:00
simonb
a21c456e2e Call nanotime() directly, instead of doing the
microtime()/TIMEVAL_TO_TIMESPEC() dance.
2005-11-11 07:07:42 +00:00
yamt
209478cccf protect p_nrlwps by sched_lock. 2005-09-17 14:35:51 +00:00
christos
758a209d23 64 bit inode changes. 2005-08-19 02:03:49 +00:00
christos
7a55962329 the exception numbers are MI. 2005-06-25 08:28:34 +00:00
christos
fb4b40b7e8 - sprinkle const.
- add XXXUNCONST to the emul_find() pbuf argument free'ing. XXX: this needs
  an api change.
- avoid variable shadowing.
2005-05-29 22:08:16 +00:00
fvdl
c487efe4a7 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.
2005-03-26 05:12:34 +00:00
perry
77f2a006d0 regen 2005-02-26 23:58:19 +00:00
perry
bcaf99655c remove trailing whitespace after the "created from: NetBSD..." line. 2005-02-26 23:55:49 +00:00
perry
6377fcfee3 make this rebuild generated files by default, and don't build .bak files 2005-02-26 23:43:15 +00:00
perry
834b86bb6d eliminate creation of .bak files -- we have source control 2005-02-26 23:42:13 +00:00