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Marcel Moolenaar fdcac92868 Assign thread IDs to kernel threads. The purpose of the thread ID (tid) 
is twofold:
1. When a 1:1 or M:N threaded process dumps core, we need to put the
   register state of each of its kernel threads in the core file.
   This can only be done by differentiating the pid field in the
   respective note. For this we need the tid.
2. When thread support is present for remote debugging the kernel
   with gdb(1), threads need to be identified by an integer due to
   limitations in the remote protocol. This requires having a tid.

To minimize the impact of having thread IDs, threads that are created
as part of a fork (i.e. the initial thread in a process) will inherit
the process ID (i.e. tid=pid). Subsequent threads will have IDs larger
than PID_MAX to avoid interference with the pid allocation algorithm.
The assignment of tids is handled by thread_new_tid().

The thread ID allocation algorithm has been written with 3 assumptions
in mind:
1. IDs need to be created as fast a possible,
2. Reuse of IDs may happen instantaneously,
3. Someone else will write a better algorithm.
2004-04-03 15:59:13 +00:00
..
_iovec.h
Move the typedef for size_t into _iovec.h, so that size_t is available
2003-02-26 20:16:58 +00:00
_label.h
Update my personal copyrights and NETA copyrights in the kernel
2004-02-22 00:33:12 +00:00
_lock.h
Renamed the idempotency identifier to match the file name.
2002-06-07 14:37:09 +00:00
_mutex.h
Add some basic support for measuring sleep mutex contention to the
2004-01-25 01:59:27 +00:00
_null.h
Make NULL a (void*)0 whereever possible, and fix the warnings(-Werror)
2004-03-05 08:10:19 +00:00
_semaphore.h
The sem_timedwait() and ksem_timedwait() functions both
2004-02-03 22:27:03 +00:00
_sigset.h
Split 4.x and 5.x signal handling so that we can keep 4.x signal
2002-10-25 19:10:58 +00:00
_task.h
Defer the vrele() on a jail's root vnode reference from prison_free()
2004-01-23 20:44:26 +00:00
_timespec.h
Simplify struct __timespec, fix style bugs, add an XXX comment.
2003-02-26 16:50:01 +00:00
_timeval.h
Move struct timeval to its own header so that it can be shared between
2002-12-31 04:08:41 +00:00
_types.h
Move details of dev_t (and udev_t) to <sys/_types.h>.
2003-03-28 15:27:30 +00:00
aac_ioctl.h
Do some small cleanups to comments and remove AACQ_COMPLETE definitions since
2004-02-07 17:40:38 +00:00
acct.h
Move details of dev_t (and udev_t) to <sys/_types.h>.
2003-03-28 15:27:30 +00:00
acl.h
Move more ACL logic from the UFS code (ufs_acl.c) to the central POSIX.1e
2003-08-04 02:13:05 +00:00
agpio.h
Add simple support for AGP 3.0 including enabling 8x mode. The simple
2003-10-23 18:08:56 +00:00
aio.h
…
alq.h
Add an explicit credential argument to alq_open() to allow the caller to
2003-06-22 22:28:56 +00:00
assym.h
These are changes to allow to use the Intel C/C++ compiler (lang/icc)
2004-03-12 21:45:33 +00:00
ata.h
Add SATA support fields
2004-03-15 13:17:24 +00:00
bio.h
Bring back the geom_bioqueues, they _are_ a good idea.
2004-01-28 08:39:18 +00:00
bitstring.h
Finish the repocopy of bitstring.h to sys so it can be used
2003-06-13 19:40:13 +00:00
blist.h
Expand inline the relevant parts of src/COPYRIGHT for Matt Dillon's
2003-08-12 23:24:05 +00:00
buf.h
Fix copy&paste-o.
2004-03-12 06:51:21 +00:00
bus_dma.h
Document the lockfunc and lockfuncarg arguments to bus_dma_tag_create() in
2003-11-07 23:29:42 +00:00
bus.h
Add bus_alloc_resource_any(9), which does bus_alloc_resource() with the
2004-03-17 17:40:34 +00:00
callout.h
Remove __P
2002-03-19 20:18:42 +00:00
cdefs.h
These are changes to allow to use the Intel C/C++ compiler (lang/icc)
2004-03-12 21:45:33 +00:00
cdio.h
Remove no longer existant CDIOCREADAUDIO ioctl.
2003-10-20 09:29:40 +00:00
cdrio.h
* Add CDRIOC{READ,WRITE}SPEED ioctls to cd(4). Units are in KB/sec.
2002-10-18 22:03:39 +00:00
chio.h
Use symbolic constants instead of "4".
2003-05-31 16:54:37 +00:00
clist.h
…
clock.h
Add a generic implementation of inittodr() and resettodr(), as well as
2002-04-04 23:39:10 +00:00
condvar.h
Switch the sleep/wakeup and condition variable implementations to use the
2004-02-27 18:52:44 +00:00
conf.h
Add clone_setup() function rather than rely on lazy initialization.
2004-03-11 12:58:55 +00:00
cons.h
Rename cn_unavailable to cnunavailable for little more consistency.
2004-02-05 17:35:28 +00:00
consio.h
1. Allow information about current history size be retrieved using ioctl(2);
2002-08-19 16:32:09 +00:00
copyright.h
Happy 2004!
2003-12-31 22:27:51 +00:00
ctype.h
Resolve conflicts arising from the ACPI CA 20021118 import.
2002-11-27 18:09:20 +00:00
dataacq.h
…
device_port.h
…
devicestat.h
Add an XXX comment with a TODO item for next time we run a revision
2003-05-31 21:10:01 +00:00
digiio.h
…
dir.h
These are changes to allow to use the Intel C/C++ compiler (lang/icc)
2004-03-12 21:45:33 +00:00
dirent.h
Fix namespace issues by using the relatively new visibility
2002-09-10 18:12:16 +00:00
disk.h
I think the divorce successed, so stop #including <geom/geom_disk.h>
2003-04-01 18:55:04 +00:00
disklabel.h
Sanitize the LABELSECTOR & LABELOFFSET definitions:
2003-06-07 09:06:39 +00:00
diskmbr.h
Add definitions for location of the magic sequence and the length
2003-04-13 21:52:22 +00:00
diskpc98.h
Remove DIOCGPC98 ioctl.
2003-05-01 14:40:16 +00:00
dkstat.h
#include <sys/resource.h> to limit ports damage.
2003-05-07 15:26:43 +00:00
domain.h
- add dom_if{attach,detach} framework.
2003-10-17 15:46:31 +00:00
dvdio.h
Update header.
2002-03-04 21:08:35 +00:00
elf32.h
Move the definition of ElfN_Hashelt to common headers. The only platform
2002-05-30 08:32:18 +00:00
elf64.h
Move the definition of ElfN_Hashelt to common headers. The only platform
2002-05-30 08:32:18 +00:00
elf_common.h
Add defines required for TLS support.
2003-06-18 16:38:22 +00:00
elf_generic.h
Infrastructure tweaks to allow having both an Elf32 and an Elf64 executable
2002-07-20 02:56:12 +00:00
endian.h
Quiet warnings about mis-matched pointer assignment.
2003-10-15 20:05:57 +00:00
errno.h
Copyin and copyout are only possible from a process-native thread,
2002-10-07 06:25:26 +00:00
event.h
Tweak the definition of the EV_SET macro so that it evaluates each
2003-02-02 19:39:51 +00:00
eventhandler.h
Make the process_exit eventhandler run without Giant. Add Giant hooks
2004-03-14 02:06:28 +00:00
eventvar.h
…
exec.h
Increase the size of SPARE_USRSPACE. It is way too small by default
2003-11-07 21:25:54 +00:00
extattr.h
Userspace prototypes for the extattr_list_*() system calls.
2003-06-04 04:04:24 +00:00
fbio.h
Add FBTYPEs used by the sbus bus support in XFree86. This uses some of
2003-06-18 17:49:52 +00:00
fcntl.h
Move FMARK and FDEFER til sys/file.h where they belong.
2003-06-20 07:59:59 +00:00
fdcio.h
…
file.h
Add a f_vnode field to struct file.
2003-06-22 08:41:43 +00:00
filedesc.h
Fixed the XXX'ed namespace pollution in rev.1.54 by using
2004-03-04 11:35:30 +00:00
filio.h
…
fnv_hash.h
…
gmon.h
Reserved one of the spare fields in struct gmon to record the history
2002-02-21 05:52:49 +00:00
gpt.h
o Include <sys/uuid.h>. This avoids that applications such as
2002-11-10 20:13:58 +00:00
iconv.h
Make msdosfs long filenames matching case insensitive again.
2003-12-08 08:32:20 +00:00
imgact_aout.h
Forward declare struct vnode so that <sys/vnode.h> or some other header
2002-09-05 07:54:03 +00:00
imgact_elf.h
Add an additional field to the elf brandinfo structure to support
2003-12-23 02:42:39 +00:00
imgact.h
Bring in two sets of changes:
2002-11-05 17:51:56 +00:00
inflate.h
Forgot one more instance of my old email address.
2002-03-26 08:29:40 +00:00
interrupt.h
Expand the argument to the ithread enable/disable helper hooks from an
2003-11-17 06:08:10 +00:00
ioccom.h
I've fixed the X11 port, so I can remove the (ioctl) hack.
2002-04-10 04:53:37 +00:00
ioctl_compat.h
…
ioctl.h
These are changes to allow to use the Intel C/C++ compiler (lang/icc)
2004-03-12 21:45:33 +00:00
ipc.h
It is possible for an active aio to prevent shared memory from being
2003-01-13 23:04:32 +00:00
jail.h
By default, when a process in jail calls getfsstat(), only return the
2004-02-14 18:31:11 +00:00
joystick.h
Fix typo in the BSD copyright: s/withough/without/
2002-06-02 20:05:59 +00:00
jumbo.h
Fix 2 vm_offset_t -> vm_paddr_t missed in previous commit.
2003-03-25 01:47:29 +00:00
kbio.h
…
kenv.h
Rework the kernel environment subsystem. We now convert the static
2002-04-17 13:06:36 +00:00
kernel.h
Remove the /* 1.2 */ comment which was orphaned by previous commit.
2004-03-10 09:23:27 +00:00
kerneldump.h
Add kernel dump support, based on the ia64 version (which was committed
2002-10-20 17:03:15 +00:00
kobj.h
* Add multiple inheritance to kobj. Each class can have zero or more base
2003-10-16 09:16:28 +00:00
kse.h
GC the unused <machine/kse.h> file.
2003-12-24 00:51:30 +00:00
kthread.h
Some kernel threads try to do significant work, and the default KSTACK_PAGES
2002-10-02 07:44:29 +00:00
ktr.h
Retire the KTR_LOCKMGR bit and use it to log eventhandler messages
2003-03-11 20:07:22 +00:00
ktrace.h
- Add a td_pflags field to struct thread for private flags accessed only by
2003-06-09 17:38:32 +00:00
libkern.h
Back out previous commit; it doesn't seem to do what I thought it does.
2004-02-16 21:31:14 +00:00
limits.h
Move GID/UID_MAX under __BSD_VISIBLE protection.
2004-03-15 13:43:44 +00:00
linedisc.h
Add clone_setup() function rather than rely on lazy initialization.
2004-03-11 12:58:55 +00:00
link_aout.h
Repo copy link.h to sys/link_elf.h and sys/link_aout.h since they are
2002-08-22 20:35:23 +00:00
link_elf.h
Implement dlinfo() function.
2003-02-13 17:47:44 +00:00
linker_set.h
These are changes to allow to use the Intel C/C++ compiler (lang/icc)
2004-03-12 21:45:33 +00:00
linker.h
Slight reorg and added AMD64 support. A couple of the MODINFOMD_* values
2003-05-01 03:31:18 +00:00
lock.h
Rework witness_lock() to make it slightly more useful and flexible.
2004-01-28 20:39:57 +00:00
lockf.h
Remove __P
2002-03-19 20:18:42 +00:00
lockmgr.h
- Add an interlock argument to BUF_LOCK and BUF_TIMELOCK.
2003-02-25 03:37:48 +00:00
mac_policy.h
Forward declare struct proc, struct sockaddr, and struct thread, which
2004-02-26 20:44:50 +00:00
mac.h
Reimplement sysctls handling by MAC framework.
2004-02-22 12:31:44 +00:00
malloc.h
correct typo in comment
2003-08-19 16:41:12 +00:00
mbpool.h
Add a facility for devices, specifically network interfaces, that require
2003-07-15 08:59:38 +00:00
mbuf.h
Tweak existing header and other build infrastructure to be able to build
2004-02-26 03:53:54 +00:00
mchain.h
Some style fixes.
2003-02-21 16:24:49 +00:00
md4.h
…
md5.h
Oops, this should have been part of my previous commit.
2002-06-24 14:18:39 +00:00
mdioctl.h
Fix a long-standing deadlock issue with vnode backed md(4) devices:
2004-03-10 20:41:09 +00:00
memrange.h
Some BIOSs are using MTRR values that are only documented under NDA
2002-09-15 15:07:55 +00:00
mman.h
Add the mlockall() and munlockall() system calls.
2003-08-11 07:14:08 +00:00
module.h
- Lock down the ``module'' structure by adding an SX lock that is used by
2002-03-18 07:45:30 +00:00
mount.h
Make vfs_nmount() public. The Linux emulator needs this in order to mount
2004-03-16 08:59:37 +00:00
mouse.h
Minor changes:
2002-03-24 03:07:07 +00:00
msg.h
Add const qualifier to data argument for msgsnd.
2003-01-26 20:09:34 +00:00
msgbuf.h
Fixed some style bugs (spaces instead of tabs in macro definitions ...).
2004-02-18 02:56:14 +00:00
mtio.h
Make the mtio data structures explicitly sized.
2002-05-14 07:30:13 +00:00
mutex.h
Invert the logic of NET_LOCK_GIANT(), and remove the one reference to it.
2004-03-28 23:12:19 +00:00
namei.h
Consistently use the BSD u_int and u_short instead of the SYSV uint and
2003-08-07 15:04:27 +00:00
nlist_aout.h
Pad after "char *n_name;" in the !_AOUT_INCLUDE_ case so that struct nlist
2002-09-05 08:03:02 +00:00
param.h
Bump FreeBSD version for UTF-8 locale addition. This is primarily for
2004-03-27 08:21:00 +00:00
pciio.h
…
pcpu.h
Change the type of the various CPU masks to cpumask_t. Note that as
2004-03-27 18:21:24 +00:00
pioctl.h
Kernel modifications necessary to allow to follow fork()ed children.
2002-08-04 01:07:02 +00:00
pipe.h
Revise the direct or optimized case to use uiomove_fromphys() by the reader
2004-03-27 19:50:23 +00:00
poll.h
Reconnect a comment with its code.
2002-07-10 04:47:25 +00:00
posix4.h
Back out M_* changes, per decision of the TRB.
2003-02-19 05:47:46 +00:00
power.h
Very minor warns fix. Add a declaration for an unused parameter.
2002-07-15 14:06:03 +00:00
priority.h
…
proc.h
Assign thread IDs to kernel threads. The purpose of the thread ID (tid)
2004-04-03 15:59:13 +00:00
procfs.h
…
protosw.h
Introduce a MAC label reference in 'struct inpcb', which caches
2003-11-18 00:39:07 +00:00
ptio.h
…
ptrace.h
Implement preliminary support for the PT_SYSCALL command to ptrace(2).
2003-10-09 10:17:16 +00:00
queue.h
These are changes to allow to use the Intel C/C++ compiler (lang/icc)
2004-03-12 21:45:33 +00:00
random.h
add RANDOM_PURE for use by crypto drivers that harvest data from h/w RNG's
2002-10-04 20:34:08 +00:00
reboot.h
Changed the RB_PAUSE flag from 0x40000 to 0x100000 and marked the old
2003-11-15 10:04:06 +00:00
regression.h
Remove __P
2002-03-19 20:18:42 +00:00
resource.h
Locking for the per-process resource limits structure.
2004-02-04 21:52:57 +00:00
resourcevar.h
- Convert the plimit lock to a pool mutex lock.
2004-02-06 19:35:14 +00:00
rman.h
Implement rman_get_device
2003-02-12 07:00:59 +00:00
rtprio.h
Remove __P
2002-03-19 20:18:42 +00:00
runq.h
Make the run queue parameters machine dependent. Optimize 64 bit
2002-05-25 01:12:23 +00:00
sbuf.h
Add the new function "sbuf_done()" which returns non-zero if the sbuf is
2002-10-04 09:58:17 +00:00
sched.h
Switch the sleep/wakeup and condition variable implementations to use the
2004-02-27 18:52:44 +00:00
select.h
Add complete struct timeval by including <sys/_timeval.h>.
2002-12-31 04:13:50 +00:00
selinfo.h
- Implement selwakeuppri() which allows raising the priority of a
2003-11-09 09:17:26 +00:00
sem.h
s/u_short/unsigned short/ to make this compile if _POSIX_C_SOURCE=200112
2003-06-02 17:23:37 +00:00
sema.h
…
semaphore.h
The sem_timedwait() and ksem_timedwait() functions both
2004-02-03 22:27:03 +00:00
sf_buf.h
In some cases, sf_buf_alloc() should sleep with pri PCATCH; in others, it
2004-04-03 09:16:27 +00:00
shm.h
Bring shm functions closer the the opengroup standards.
2003-01-25 21:33:05 +00:00
sigio.h
When compiling the kernel do not implicitly include filedesc.h from proc.h,
2003-01-01 01:56:19 +00:00
signal.h
- According to mike@FreeBSD.org SIGTHR should be hiden by
2003-03-31 23:31:50 +00:00
signalvar.h
If a thread masks all its signal, in cursig(), no signal will be exchanged
2003-11-10 03:11:08 +00:00
sleepqueue.h
- Remove old sleep queues.
2004-03-12 19:06:18 +00:00
smp.h
Change the type of the various CPU masks to cpumask_t. Note that as
2004-03-27 18:21:24 +00:00
snoop.h
Declare the snp ioctl()s to work on udev_t, since that is what they
2002-11-11 10:45:31 +00:00
socket.h
Define AF_ARP/PF_ARP.
2004-03-14 00:49:09 +00:00
socketvar.h
Rename dup_sockaddr() to sodupsockaddr() for consistency with other
2004-03-01 03:14:23 +00:00
sockio.h
Add the kernel side of network interface renaming support.
2004-02-04 02:54:25 +00:00
soundcard.h
New defines that paves the way for new midi features and ports.
2003-11-22 03:27:09 +00:00
stat.h
Fix two misuses of __BSD_VISIBLE.
2003-05-22 17:07:57 +00:00
statvfs.h
o Merge <machine/ansi.h> and <machine/types.h> into a new header
2002-08-21 16:20:02 +00:00
stddef.h
Change the definition of NULL on ia64 (for LP64 compilations) from
2003-12-07 21:10:06 +00:00
stdint.h
o Merge <machine/ansi.h> and <machine/types.h> into a new header
2002-08-21 16:20:02 +00:00
sun_disklabel.h
Introduce a #define for the length of the bootloader code.
2003-04-23 08:04:30 +00:00
sx.h
Include <sys/queue.h> before <sys/_lock.h> instead of depending on
2004-02-04 14:18:21 +00:00
syscall.h
Regen for libthr thread synchronization syscalls.
2004-03-27 14:34:17 +00:00
syscall.mk
Regen for libthr thread synchronization syscalls.
2004-03-27 14:34:17 +00:00
syscallsubr.h
Back out the following revisions:
2003-11-05 01:53:10 +00:00
sysctl.h
Rename the wiredlen member of struct sysctl_req to validlen and always
2004-03-16 06:53:03 +00:00
sysent.h
Add sysentvec->sv_fixlimits() hook so that we can catch cases on 64 bit
2003-09-25 01:10:26 +00:00
syslimits.h
These are changes to allow to use the Intel C/C++ compiler (lang/icc)
2004-03-12 21:45:33 +00:00
syslog.h
o Merge <machine/ansi.h> and <machine/types.h> into a new header
2002-08-21 16:20:02 +00:00
sysproto.h
Regen for libthr thread synchronization syscalls.
2004-03-27 14:34:17 +00:00
systm.h
Switch the sleep/wakeup and condition variable implementations to use the
2004-02-27 18:52:44 +00:00
taskqueue.h
Defer the vrele() on a jail's root vnode reference from prison_free()
2004-01-23 20:44:26 +00:00
termios.h
Remove __P
2002-03-19 20:18:42 +00:00
thr.h
Separate thread synchronization from signals in libthr. Instead
2004-03-27 14:30:43 +00:00
tiio.h
At long last, commit the zero copy sockets code.
2002-06-26 03:37:47 +00:00
time.h
Move boottime from <sys/kernel.h> to <sys/time.h> where it belongs.
2004-02-29 10:55:15 +00:00
timeb.h
Remove __P
2002-03-19 20:18:42 +00:00
timepps.h
Long overdue comment claification: RFC 2783 was approved long time ago.
2003-11-23 18:52:23 +00:00
timers.h
…
times.h
o Merge <machine/ansi.h> and <machine/types.h> into a new header
2002-08-21 16:20:02 +00:00
timespec.h
o Merge <machine/ansi.h> and <machine/types.h> into a new header
2002-08-21 16:20:02 +00:00
timetc.h
Give timecounters a numeric quality field.
2003-08-16 08:23:53 +00:00
timex.h
Removed unused forward struct declaration.
2002-04-28 09:51:45 +00:00
tree.h
Synch with NetBSD: avoid "unused parameter" warning.
2004-03-29 11:18:25 +00:00
tty.h
Use a new message buffer `consmsgbuf' to forward messages to a
2003-06-22 02:54:33 +00:00
ttychars.h
…
ttycom.h
Fixed editing error in a comment in previous commit.
2004-02-04 17:08:46 +00:00
ttydefaults.h
…
ttydev.h
…
turnstile.h
Clarify and tweak some comments.
2004-02-27 16:14:27 +00:00
types.h
Introduce the cpumask_t type. The purpose of the type is to create a
2004-03-20 20:41:40 +00:00
ucontext.h
Change the clear_ret argument of get_mcontext() to be a flags argument.
2003-11-09 20:31:04 +00:00
ucred.h
Fixed some style bugs (insertion sort error and extra blank line).
2003-11-12 15:07:18 +00:00
uio.h
Introduce uiomove_fromphys(). This is a variant of uiomove() that takes
2004-03-20 19:36:29 +00:00
umtx.h
Catch a few places where NULL (pointer) was used where 0 (integer) was
2003-12-23 02:36:43 +00:00
un.h
Export uipc_connect2() from uipc_usrreq.c instead of unp_connect2(),
2004-03-31 01:41:30 +00:00
unistd.h
Update limits and configuration parameters for 1003.1/TC1/D6.
2002-10-27 18:03:02 +00:00
unpcb.h
Remove vestiges of no longer needed unp_rvnode field.
2003-02-06 01:34:43 +00:00
user.h
Make proc's kg_nice/ki_nice explicitly signed for PPC. This is a
2004-01-22 06:56:00 +00:00
utsname.h
…
uuid.h
Introduce {be,le}_uuid_{enc,dec}() functions for explicitly encoding
2003-05-31 16:47:07 +00:00
vmmeter.h
- It's more accurate to say that vm_paging_needed() returns TRUE
2003-02-02 07:16:40 +00:00
vnode.h
Clean up the stub fake vnode locking implemenations. The main reason this
2004-03-29 22:41:21 +00:00
wait.h
- Replace wait1() with a kern_wait() function that accepts the pid,
2004-03-17 20:00:00 +00:00
watchdog.h
Add a generic watchdog facility which through a single device entry
2004-02-28 20:06:59 +00:00
xrpuio.h
…