3683 Commits

Author SHA1 Message Date
peter
2f446fa455 Turn '#if NSNP > 0' into an option. 2001-01-29 09:43:36 +00:00
peter
b7edc4f4e3 Send "#if NISA > 0" to the bit-bucket and replace it with an option.
These were compile-time "is the isa code present?" tests and not
'how many isa busses' tests.
2001-01-29 09:38:39 +00:00
marcel
99d951b840 Don't hard-code alignment and data declarations valid for 64-bit
machines (duh!). This was one reason why this script broke on
i386. The other being that on i386 sections did not have the
proper alignment. This has been fixed in sys/sys/linker_set.h.
2001-01-29 01:55:54 +00:00
marcel
93f1d42808 Improve kernel bootstrapping:
o  Use objdump instead of gensetdefs(1) to build the linker sets.
o  Allow overriding of nm and objdump in resp. genassym.sh and
   gensetdefs.pl for non-native toolchains.

Reviewed by: arch
Perl improvements: Jos Backus <josb@cncdsl.com>, benno
2001-01-28 06:39:56 +00:00
bmilekic
4f534409b3 Move the setting of curproc to idleproc up earlier in ap_init(). The
problem is that a mutex lock, prior to this change, is acquired before
the curproc is set to idleproc, so we mess ourselves up by calling
the mutex lock routine with curproc == NULL.

Moving it up after the aps_ready spin-wait has us hopefully setting it
after idleproc is setup.

Solved by: jake (the allmighty) :-)
2001-01-28 03:41:01 +00:00
tegge
55837ed17a Defer assignment of low level interrupt handlers for PCI interrupts
described in the MP table until something asks for the interrupt number
later on.
2001-01-28 01:07:54 +00:00
des
f175b29e06 Remove an assertion I forgot to remove in the previous commit: sbuf_len()
may now be called with an unfinished sbuf.
For consistency, copy the related comment from sbuf_delete() to sbuf_clear()
and sbuf_len().
2001-01-28 00:33:58 +00:00
des
ba6b6e22f5 Add sbuf_clear() and sbuf_overflowed().
Move the helper macros from sbuf.h to sbuf.c
Use ints instead of size_ts.
Relax the requirements for sbuf_finish(): it is now possible to finish an
overflowed buffer.
Make sbuf_len() return -1 instead of 0 if the sbuf overflowed.

Requested by:	gibbs
2001-01-28 00:13:01 +00:00
jhb
02ab182bc1 Add a new ddb command 'witness_list' that lists the mutexes held by
curproc.

Requested by:	peter
2001-01-27 07:51:34 +00:00
peter
ee90d51e9c p->p_intr_nesting_level is MI now and initialized to 0 in kern_fork.c,
so it should be save to KASSERT() on it even on an arch that may not
use it.
2001-01-27 06:32:20 +00:00
jhb
b6baa60b1e Back out proc locking to protect p_ucred for obtaining additional
references along with the actual obtaining of additional references.
2001-01-27 00:01:31 +00:00
jhb
5881492684 Fix fork_exit() to take a pointer to a function that returns void as its
first argument rather than a function that returns a void *.

Noticed by:	jake
2001-01-26 23:51:41 +00:00
jake
c7072beb9d Push Giant down into the trap handlers that need it, instead of
acquiring it unconditionally.

Reviewed by:	jhb
2001-01-26 04:16:16 +00:00
jhb
af00dc8eef - Change fork_exit() to take a pointer to a trapframe as its 3rd argument
instead of a trapframe directly.  (Requested by bde.)
- Convert the alpha switch_trampoline to call fork_exit() and use the MI
  fork_return() instead of child_return().
- Axe child_return().
2001-01-24 21:59:25 +00:00
jhb
91e8162c0a Add a new item to kinfo_proc: ki_sflag to mirror p_sflag. 2001-01-24 12:49:52 +00:00
jasone
8d2ec1ebc4 Convert all simplelocks to mutexes and remove the simplelock implementations. 2001-01-24 12:35:55 +00:00
jhb
a56633d331 - Catch up to proc flag changes.
- Assert sched_lock is held in proc_compare.
2001-01-24 11:15:59 +00:00
jhb
2a1df40436 - Catch up to proc flag changes.
- Update stopevent() to assert that the proc lock is held when it is
  held and is not recursed.  Note that the STOPEVENT() macro obtains
  the proc lock when calling this function.
2001-01-24 11:15:24 +00:00
jhb
13bef95f6e - Catch up to proc flag changes.
- Add proc locking for selwakeup() and selrecord().
2001-01-24 11:12:37 +00:00
jhb
d5d162ffe9 - Catch up to proc flag changes. 2001-01-24 11:11:35 +00:00
jhb
c0f4ac74f2 - Catch up to proc flag changes.
- Add in some locking ops that might fix SIGXCPU, but don't enable them
  yet.
- Assert that sched_lock is not recursed when mi_switch() is called.
2001-01-24 11:10:55 +00:00
jhb
d161c1e3f8 - Proc locking.
- Catch up to proc flag changes.
2001-01-24 11:08:02 +00:00
jhb
daef77c52d - Add a mtx_assert() for sched_lock in calcru().
- Protect calcru() with sched_lock later on in the file when it is called.
2001-01-24 11:06:39 +00:00
jhb
bd862d8954 - Proc locking.
- Catch up to proc flag changes.
- Reorder the way we get things in fill_kinfoproc() to minimize the
  number of locking operations.
2001-01-24 11:05:50 +00:00
jhb
233d6de215 - Don't use a union and fun tricks to shave one extra pointer off of struct
mtx right now as it makes debugging harder.  When we are in optimizing
  mode, we can revisit this.
- Fix the KTR trace messages to use %p rather than 0x%p to avoid duplicate
  0x's in KTR output.
- During witness_fixup, release Giant so that witness doesn't get confused.
  Also, grab all_mtx while walking the list of mutexes.
- Remove w_sleep and w_recurse.  Instead, perform checks on mutexes using
  the mutex's mtx_flags field.
- Allow debug.witness_ddb and debug.witness_skipspin to be set from the
  loader.
- Add Giant to the front of existing order_list entries to help ensure
  Giant is always first.
- Add an order entry for the various proc locks.  Note that this only
  helps keep proc in order mostly as the allproc and proctree mutexes are
  only obtained during a lockmgr operation on the specified mutex.
2001-01-24 10:57:01 +00:00
jhb
eccf4f41cd - Catch up to proc flag changes.
- Set the new P_KTHREAD flag for kthreads during kthread_create.
2001-01-24 10:47:50 +00:00
jhb
f739ee5728 - Catch up to proc flag changes.
- Add new fork_exit() and fork_return() MI C functions.
2001-01-24 10:47:14 +00:00
jhb
fdd3fb7200 Catch up to P_FOO -> PS_FOO changes in proc flags. 2001-01-24 10:44:01 +00:00
jhb
180bd8bf65 - Proc locking.
- P_FOO -> PS_FOO.
2001-01-24 10:43:25 +00:00
jhb
eef4e5d2f9 - Catch up to p_sflag changes.
- The MD code now initializes proc0.p_heldmtx, proc0.p_contested, and
  curproc.
- The MD code calls here with Giant already held.
- Proc locking.
2001-01-24 10:40:56 +00:00
jhb
a539ffb3e7 - Kill the have_giant parameter to userret() along with all instances of
that name as a variable.  Use mtx_owned(&Giant) where appropriate
  instead.
- Proc locking.
- P_FOO -> PS_FOO.
- Update comments about enable interrupts during trap and why this may be
  bad if we trap while holding a spin mutex.
- Don't bother resetting p to curproc in syscall() in case we are the child
  returning from fork.  The child hasn't returned from fork through syscall
  in a while.
- Remove fork_return() as it has been superseded by the MI version.
2001-01-24 09:53:49 +00:00
jhb
8e161d3269 - Relocate portions of this file to get it into an order closer to that of
the alpha mp_machdep.c.
- Proc locking.
- Catch up to the P_FOO -> PS_FOO proc flags changes.
- Stick ap_init()'s prototype with the other prototypes.
- Remove the Xforwardirq IPI.
- Remove unused simplelocks.
- Don't try to psignal() from forward_statclock(), but set the appropriate
  signal pending flag in p_sflag instead.
- Add in KTR_SMP tracepoints for various SMP functions.   (Brought over
  from the alpha port)
2001-01-24 09:48:52 +00:00
jhb
558ee819ee Fix a typo.
Reported by:	albert
2001-01-24 08:42:39 +00:00
mckusick
28dc76bebe Never reuse AUTO_OID values.
Approved by:	Alfred Perlstein <bright@wintelcom.net>
2001-01-24 04:35:13 +00:00
jhb
fa0d2b97b0 Don't grab Giant when calling kmem_alloc/kmem_free as this is just
encouraging other people to follow the same practice.  If this is going
to be done, then it should be done inside of those two functions instead.
2001-01-24 00:36:03 +00:00
jhb
7c01c0a2c2 Proc locking. 2001-01-24 00:35:12 +00:00
jhb
1046fa2a8d - Proc locking.
- Protect calcru() with sched_lock.
2001-01-24 00:33:44 +00:00
jhb
065a35fbb6 - Proc locking.
- Protect calcru() with sched_lock.
2001-01-24 00:28:07 +00:00
jhb
a294d4e362 Proc locking. 2001-01-24 00:27:28 +00:00
mjacob
b4e8c12b24 Do not do the commenting out the way that saves bytes and looks cleaner
to you. Do it the way Vox Populi wants it.
2001-01-23 16:35:33 +00:00
ume
1ae749987d Add mibs to hold the number of forks since boot. New mibs are:
vm.stats.vm.v_forks
	vm.stats.vm.v_vforks
	vm.stats.vm.v_rforks
	vm.stats.vm.v_kthreads
	vm.stats.vm.v_forkpages
	vm.stats.vm.v_vforkpages
	vm.stats.vm.v_rforkpages
	vm.stats.vm.v_kthreadpages

Submitted by:	Paul Herman <pherman@frenchfries.net>
Reviewed by:	alfred
2001-01-23 14:32:01 +00:00
rwatson
a7fc696a51 o The move to using VADMIN under vaccess() resulted in some system
calls returning EACCES instead of EPERM.  This patch modifies vaccess()
  to return EPERM instead of EACCES if VADMIN is among the requested
  rights.  This affects functions normally limited to the owners of
  a file, such as chmod(), as EPERM is the error indicating that
  privilege would allow the operation, rather than a chance in mandatory
  or discretionary rights.

Reported by:	bde
2001-01-23 04:15:19 +00:00
mjacob
6c5381dc64 Move (now) unused variable declaration inside the block (now commented out). 2001-01-22 22:22:38 +00:00
jasone
cf0a6d372c Print correct file name and line number in mtx_assert().
Noticed by:	jake
2001-01-22 05:56:55 +00:00
jasone
ec55088093 Move most of sys/mutex.h into kern/kern_mutex.c, thereby making the mutex
inline functions non-inlined.  Hide parts of the mutex implementation that
should not be exposed.

Make sure that WITNESS code is not executed during boot until the mutexes
are fully initialized by SI_SUB_MUTEX (the original motivation for this
commit).

Submitted by:	peter
2001-01-21 22:34:43 +00:00
des
b3c27aaaf7 First step towards an MP-safe zone allocator:
- have zalloc() and zfree() always lock the vm_zone.
 - remove zalloci() and zfreei(), which are now redundant.

Reviewed by:	bmilekic, jasone
2001-01-21 22:23:11 +00:00
phk
ea80761e20 Convert a Debugger(3) to a panic(9) and a EINVAL.
Reminded by:	bde
2001-01-21 21:19:49 +00:00
jake
937122ae6d Make intr_nesting_level per-process, rather than per-cpu. Setup
interrupt threads to run with it always >= 1, so that malloc can
detect M_WAITOK from "interrupt" context.  This is also necessary
in order to context switch from sched_ithd() directly.

Reviewed By:	peter
2001-01-21 19:25:07 +00:00
jasone
c3fd76623a Make the order of the static initializer for all_mtx match the order of
fields in struct mtx.

Found by:	jake
2001-01-21 11:05:02 +00:00
peter
0f92919216 Remove APIC_INTR_DIAGNOSTIC - this has been disabled for some time now.
Remove some leftovers of removed SMP options.
2001-01-21 07:54:10 +00:00