#
259065 |
|
07-Dec-2013 |
gjb |
- Copy stable/10 (r259064) to releng/10.0 as part of the 10.0-RELEASE cycle. - Update __FreeBSD_version [1] - Set branch name to -RC1
[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so start releng/10.0 at '100' so the branch is started with a value ending in zero.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
#
256281 |
|
10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
|
#
225617 |
|
16-Sep-2011 |
kmacy |
In order to maximize the re-usability of kernel code in user space this patch modifies makesyscalls.sh to prefix all of the non-compatibility calls (e.g. not linux_, freebsd32_) with sys_ and updates the kernel entry points and all places in the code that use them. It also fixes an additional name space collision between the kernel function psignal and the libc function of the same name by renaming the kernel psignal kern_psignal(). By introducing this change now we will ease future MFCs that change syscalls.
Reviewed by: rwatson Approved by: re (bz)
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#
207848 |
|
10-May-2010 |
kib |
The thread_unsuspend() requires both process mutex and process spinlock locked. Postpone the process unlock till the thread_unsuspend() is called.
Approved by: des (procfs maintainer) MFC after: 1 week
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#
207847 |
|
10-May-2010 |
kib |
For detach procfs ctl command, also clear P_STOPPED_TRACE process stop flag, and for each thread, TDB_SUSPEND debug flag, same as it is done by exit1() for orphaned debugee.
Approved by: des (procfs maintainer) MFC after: 1 week
|
#
177091 |
|
12-Mar-2008 |
jeff |
Remove kernel support for M:N threading.
While the KSE project was quite successful in bringing threading to FreeBSD, the M:N approach taken by the kse library was never developed to its full potential. Backwards compatibility will be provided via libmap.conf for dynamically linked binaries and static binaries will be broken.
|
#
170307 |
|
04-Jun-2007 |
jeff |
Commit 14/14 of sched_lock decomposition. - Use thread_lock() rather than sched_lock for per-thread scheduling sychronization. - Use the per-process spinlock rather than the sched_lock for per-process scheduling synchronization.
Tested by: kris, current@ Tested on: i386, amd64, ULE, 4BSD, libthr, libkse, PREEMPTION, etc. Discussed with: kris, attilio, kmacy, jhb, julian, bde (small parts each)
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#
155918 |
|
22-Feb-2006 |
jhb |
Hold the proc lock while calling proc_sstep() since the function asserts it and remove a PRELE() that didn't have a matching PHOLD(). The calling code already has a PHOLD anyway.
MFC after: 1 week
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#
151316 |
|
14-Oct-2005 |
davidxu |
1. Change prototype of trapsignal and sendsig to use ksiginfo_t *, most changes in MD code are trivial, before this change, trapsignal and sendsig use discrete parameters, now they uses member fields of ksiginfo_t structure. For sendsig, this change allows us to pass POSIX realtime signal value to user code.
2. Remove cpu_thread_siginfo, it is no longer needed because we now always generate ksiginfo_t data and feed it to libpthread.
3. Add p_sigqueue to proc structure to hold shared signals which were blocked by all threads in the proc.
4. Add td_sigqueue to thread structure to hold all signals delivered to thread.
5. i386 and amd64 now return POSIX standard si_code, other arches will be fixed.
6. In this sigqueue implementation, pending signal set is kept as before, an extra siginfo list holds additional siginfo_t data for signals. kernel code uses psignal() still behavior as before, it won't be failed even under memory pressure, only exception is when deleting a signal, we should call sigqueue_delete to remove signal from sigqueue but not SIGDELSET. Current there is no kernel code will deliver a signal with additional data, so kernel should be as stable as before, a ksiginfo can carry more information, for example, allow signal to be delivered but throw away siginfo data if memory is not enough. SIGKILL and SIGSTOP have fast path in sigqueue_add, because they can not be caught or masked. The sigqueue() syscall allows user code to queue a signal to target process, if resource is unavailable, EAGAIN will be returned as specification said. Just before thread exits, signal queue memory will be freed by sigqueue_flush. Current, all signals are allowed to be queued, not only realtime signals.
Earlier patch reviewed by: jhb, deischen Tested on: i386, amd64
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#
139776 |
|
06-Jan-2005 |
imp |
/* -> /*- for copyright notices, minor format tweaks as necessary
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#
128019 |
|
07-Apr-2004 |
imp |
Remove advertising clause from University of California Regent's license, per letter dated July 22, 1999 and email from Peter Wemm, Alan Cox and Robert Watson.
Approved by: core, peter, alc, rwatson
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#
123247 |
|
07-Dec-2003 |
des |
Minor whitespace and style issues.
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#
113867 |
|
22-Apr-2003 |
jhb |
- Always call faultin() in _PHOLD() if PS_INMEM is clear. This closes a race where a thread could assume that a process was swapped in by PHOLD() when it actually wasn't fully swapped in yet. - In faultin(), always msleep() if PS_SWAPPINGIN is set instead of doing this check after bumping p_lock in the PS_INMEM == 0 case. Also, sched_lock is only needed for setting and clearning swapping PS_* flags and the swap thread inhibitor. - Don't set and clear the thread swap inhibitor in the same loops as the pmap_swapin/out_thread() since we have to do it under sched_lock. Instead, mimic the treatment of the PS_INMEM flag and use separate loops to set the inhibitors when clearing PS_INMEM and clear the inhibitors when setting PS_INMEM. - swapout() now returns with the proc lock held as it holds the lock while adjusting the swapping-related PS_* flags so that the proc lock can be used to test those flags. - Only use the proc lock to check the swapping-related PS_* flags in several places. - faultin() no longer requires sched_lock to be held by callers. - Rename PS_SWAPPING to PS_SWAPPINGOUT to be less ambiguous now that we have PS_SWAPPINGIN.
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#
113619 |
|
17-Apr-2003 |
jhb |
Protect p_flag with the proc lock. The sched_lock is not needed to turn off P_STOPPED_SIG in p_flag.
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#
111738 |
|
02-Mar-2003 |
des |
wakeup(9) and msleep(9) take void * arguments, not caddr_t.
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#
104306 |
|
01-Oct-2002 |
jmallett |
Back our kernel support for reliable signal queues.
Requested by: rwatson, phk, and many others
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#
104245 |
|
30-Sep-2002 |
jmallett |
(Forced commit, to clarify previous commit of ksiginfo/signal queue code.)
I've added a structure, kernel-private, to represent a pending or in-delivery signal, called `ksiginfo'. It is roughly analogous to the basic information that is exported by the POSIX interface 'siginfo_t', but more basic. I've added functions to allocate these structures, and further to wrap all signal operations using them.
Once the operations are wrapped, I've added a TailQ (see queue(3)) of these structures to 'struct proc', and all pending signals are in that TailQ. When a signal is being delivered, it is dequeued from the list. Once I finish the spreading of ksiginfo throughout the tree, the dequeued structure will be delivered to the process in question, whereas currently and normally, the signal number is what is used.
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#
104233 |
|
30-Sep-2002 |
jmallett |
First half of implementation of ksiginfo, signal queues, and such. This gets signals operating based on a TailQ, and is good enough to run X11, GNOME, and do job control. There are some intricate parts which could be more refined to match the sigset_t versions, but those require further evaluation of directions in which our signal system can expand and contract to fit our needs.
After this has been in the tree for a while, I will make in kernel API changes, most notably to trapsignal(9) and sendsig(9), to use ksiginfo more robustly, such that we can actually pass information with our (queued) signals to the userland. That will also result in using a struct ksiginfo pointer, rather than a signal number, in a lot of kern_sig.c, to refer to an individual pending signal queue member, but right now there is no defined behaviour for such.
CODAFS is unfinished in this regard because the logic is unclear in some places.
Sponsored by: New Gold Technology Reviewed by: bde, tjr, jake [an older version, logic similar]
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#
103216 |
|
11-Sep-2002 |
julian |
Completely redo thread states.
Reviewed by: davidxu@freebsd.org
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#
102950 |
|
05-Sep-2002 |
davidxu |
s/SGNL/SIG/ s/SNGL/SINGLE/ s/SNGLE/SINGLE/
Fix abbreviation for P_STOPPED_* etc flags, in original code they were inconsistent and difficult to distinguish between them.
Approved by: julian (mentor)
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#
100884 |
|
29-Jul-2002 |
julian |
Create a new thread state to describe threads that would be ready to run except for the fact tha they are presently swapped out. Also add a process flag to indicate that the process has started the struggle to swap back in. This will be needed for the case where multiple threads start the swapin action top a collision. Also add code to stop a process fropm being swapped out if one of the threads in this process is actually off running on another CPU.. that might hurt...
Submitted by: Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp>
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#
99072 |
|
29-Jun-2002 |
julian |
Part 1 of KSE-III
The ability to schedule multiple threads per process (one one cpu) by making ALL system calls optionally asynchronous. to come: ia64 and power-pc patches, patches for gdb, test program (in tools)
Reviewed by: Almost everyone who counts (at various times, peter, jhb, matt, alfred, mini, bernd, and a cast of thousands)
NOTE: this is still Beta code, and contains lots of debugging stuff. expect slight instability in signals..
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#
96886 |
|
18-May-2002 |
jhb |
Change p_can{debug,see,sched,signal}()'s first argument to be a thread pointer instead of a proc pointer and require the process pointed to by the second argument to be locked. We now use the thread ucred reference for the credential checks in p_can*() as a result. p_canfoo() should now no longer need Giant.
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#
94624 |
|
13-Apr-2002 |
jhb |
- Change procfs_control()'s first argument to be a thread pointer instead of a process pointer. - Move the p_candebug() at the start of procfs_control() a bit to make locking feasible. We still perform the access check before doing anything, we just now perform it after acquiring locks. - Don't lock the sched_lock for TRACE_WAIT_P() and when checking to see if p_stat is SSTOP. We lock the process while setting p_stat to SSTOP so locking the process is sufficient to do a read to see if p_stat is SSTOP or not.
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#
92727 |
|
19-Mar-2002 |
alfred |
Remove __P.
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#
91140 |
|
23-Feb-2002 |
tanimura |
Lock struct pgrp, session and sigio.
New locks are:
- pgrpsess_lock which locks the whole pgrps and sessions, - pg_mtx which protects the pgrp members, and - s_mtx which protects the session members.
Please refer to sys/proc.h for the coverage of these locks.
Changes on the pgrp/session interface:
- pgfind() needs the pgrpsess_lock held.
- The caller of enterpgrp() is responsible to allocate a new pgrp and session.
- Call enterthispgrp() in order to enter an existing pgrp.
- pgsignal() requires a pgrp lock held.
Reviewed by: jhb, alfred Tested on: cvsup.jp.FreeBSD.org (which is a quad-CPU machine running -current)
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#
90717 |
|
16-Feb-2002 |
bde |
FIxed the following style bugs: - clobbering of jsp's $Id$ by FreeBSD's old $Id$. - long lines in recent KSE changes (procfs_ctl.c). - other style bugs in KSE changes (most related to an shadowed variable in procfs_status.c -- the td in the outer scope is obfuscated by PFS_FILL_ARGS).
Approved by: des
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#
90361 |
|
07-Feb-2002 |
julian |
Pre-KSE/M3 commit. this is a low-functionality change that changes the kernel to access the main thread of a process via the linked list of threads rather than assuming that it is embedded in the process. It IS still embeded there but remove all teh code that assumes that in preparation for the next commit which will actually move it out.
Reviewed by: peter@freebsd.org, gallatin@cs.duke.edu, benno rice,
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#
87321 |
|
03-Dec-2001 |
des |
Pseudofsize procfs(5).
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#
85297 |
|
21-Oct-2001 |
des |
Move procfs_* from procfs_machdep.c into sys_process.c, and rename them to proc_* in the process; procfs_machdep.c is no longer needed.
Run-tested on i386, build-tested on Alpha, untested on other platforms.
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#
84634 |
|
07-Oct-2001 |
des |
Remove some useless preprocesor paranoia.
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#
83366 |
|
12-Sep-2001 |
julian |
KSE Milestone 2 Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process.
Sorry john! (your next MFC will be a doosie!)
Reviewed by: peter@freebsd.org, dillon@freebsd.org
X-MFC after: ha ha ha ha
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#
79335 |
|
05-Jul-2001 |
rwatson |
o Replace calls to p_can(..., P_CAN_xxx) with calls to p_canxxx(). The p_can(...) construct was a premature (and, it turns out, awkward) abstraction. The individual calls to p_canxxx() better reflect differences between the inter-process authorization checks, such as differing checks based on the type of signal. This has a side effect of improving code readability. o Replace direct credential authorization checks in ktrace() with invocation of p_candebug(), while maintaining the special case check of KTR_ROOT. This allows ktrace() to "play more nicely" with new mandatory access control schemes, as well as making its authorization checks consistent with other "debugging class" checks. o Eliminate "privused" construct for p_can*() calls which allowed the caller to determine if privilege was required for successful evaluation of the access control check. This primitive is currently unused, and as such, serves only to complicate the API.
Approved by: ({procfs,linprocfs} changes) des Obtained from: TrustedBSD Project
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#
77031 |
|
23-May-2001 |
ru |
- FDESC, FIFO, NULL, PORTAL, PROC, UMAP and UNION file systems were repo-copied from sys/miscfs to sys/fs.
- Renamed the following file systems and their modules: fdesc -> fdescfs, portal -> portalfs, union -> unionfs.
- Renamed corresponding kernel options: FDESC -> FDESCFS, PORTAL -> PORTALFS, UNION -> UNIONFS.
- Install header files for the above file systems.
- Removed bogus -I${.CURDIR}/../../sys CFLAGS from userland Makefiles.
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#
76166 |
|
01-May-2001 |
markm |
Undo part of the tangle of having sys/lock.h and sys/mutex.h included in other "system" header files.
Also help the deprecation of lockmgr.h by making it a sub-include of sys/lock.h and removing sys/lockmgr.h form kernel .c files.
Sort sys/*.h includes where possible in affected files.
OK'ed by: bde (with reservations)
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#
74996 |
|
29-Mar-2001 |
jhb |
- Various style fixes. - Fix a silly bug so that we return the actual error code if a procfs attach fails rather than always returning 0.
Reported by: bde
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#
74927 |
|
28-Mar-2001 |
jhb |
Convert the allproc and proctree locks from lockmgr locks to sx locks.
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#
73918 |
|
07-Mar-2001 |
jhb |
Proc locking. Lock around psignal() and also ensure both an exclusive proctree lock and the process lock are held when updating p_pptr and p_oppid. When we are just reaading p_pptr we only need the proc lock and not a proctree lock as well.
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#
72200 |
|
09-Feb-2001 |
bmilekic |
Change and clean the mutex lock interface.
mtx_enter(lock, type) becomes:
mtx_lock(lock) for sleep locks (MTX_DEF-initialized locks) mtx_lock_spin(lock) for spin locks (MTX_SPIN-initialized)
similarily, for releasing a lock, we now have:
mtx_unlock(lock) for MTX_DEF and mtx_unlock_spin(lock) for MTX_SPIN. We change the caller interface for the two different types of locks because the semantics are entirely different for each case, and this makes it explicitly clear and, at the same time, it rids us of the extra `type' argument.
The enter->lock and exit->unlock change has been made with the idea that we're "locking data" and not "entering locked code" in mind.
Further, remove all additional "flags" previously passed to the lock acquire/release routines with the exception of two:
MTX_QUIET and MTX_NOSWITCH
The functionality of these flags is preserved and they can be passed to the lock/unlock routines by calling the corresponding wrappers:
mtx_{lock, unlock}_flags(lock, flag(s)) and mtx_{lock, unlock}_spin_flags(lock, flag(s)) for MTX_DEF and MTX_SPIN locks, respectively.
Re-inline some lock acq/rel code; in the sleep lock case, we only inline the _obtain_lock()s in order to ensure that the inlined code fits into a cache line. In the spin lock case, we inline recursion and actually only perform a function call if we need to spin. This change has been made with the idea that we generally tend to avoid spin locks and that also the spin locks that we do have and are heavily used (i.e. sched_lock) do recurse, and therefore in an effort to reduce function call overhead for some architectures (such as alpha), we inline recursion for this case.
Create a new malloc type for the witness code and retire from using the M_DEV type. The new type is called M_WITNESS and is only declared if WITNESS is enabled.
Begin cleaning up some machdep/mutex.h code - specifically updated the "optimized" inlined code in alpha/mutex.h and wrote MTX_LOCK_SPIN and MTX_UNLOCK_SPIN asm macros for the i386/mutex.h as we presently need those.
Finally, caught up to the interface changes in all sys code.
Contributors: jake, jhb, jasone (in no particular order)
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#
70317 |
|
23-Dec-2000 |
jake |
Protect proc.p_pptr and proc.p_children/p_sibling with the proctree_lock.
linprocfs not locked pending response from informal maintainer.
Reviewed by: jhb, -smp@
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#
69958 |
|
13-Dec-2000 |
rwatson |
o Tighten restrictions on use of /proc/pid/ctl and move access checks in ctl to using centralized p_can() inter-process access control interface.
Reviewed by: sef
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#
69507 |
|
01-Dec-2000 |
jhb |
Protect p_stat with the sched_lock.
Reviewed by: jake
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#
54292 |
|
08-Dec-1999 |
phk |
Remove unused #includes.
Obtained from: http://bogon.freebsd.dk/include
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#
51791 |
|
29-Sep-1999 |
marcel |
sigset_t change (part 2 of 5) -----------------------------
The core of the signalling code has been rewritten to operate on the new sigset_t. No methodological changes have been made. Most references to a sigset_t object are through macros (see signalvar.h) to create a level of abstraction and to provide a basis for further improvements.
The NSIG constant has not been changed to reflect the maximum number of signals possible. The reason is that it breaks programs (especially shells) which assume that all signals have a non-null name in sys_signame. See src/bin/sh/trap.c for an example. Instead _SIG_MAXSIG has been introduced to hold the maximum signal possible with the new sigset_t.
struct sigprop has been moved from signalvar.h to kern_sig.c because a) it is only used there, and b) access must be done though function sigprop(). The latter because the table doesn't holds properties for all signals, but only for the first NSIG signals.
signal.h has been reorganized to make reading easier and to add the new and/or modified structures. The "old" structures are moved to signalvar.h to prevent namespace polution.
Especially the coda filesystem suffers from the change, because it contained lines like (p->p_sigmask == SIGIO), which is easy to do for integral types, but not for compound types.
NOTE: kdump (and port linux_kdump) must be recompiled.
Thanks to Garrett Wollman and Daniel Eischen for pressing the importance of changing sigreturn as well.
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#
50477 |
|
27-Aug-1999 |
peter |
$Id$ -> $FreeBSD$
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#
27845 |
|
02-Aug-1997 |
bde |
Removed unused #includes.
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#
25207 |
|
27-Apr-1997 |
alex |
Removed bogon from previous commit: doubly included sys/systm.h.
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#
25200 |
|
27-Apr-1997 |
alex |
Prevent debugger attachment to init when securelevel > 0.
Noticed by: Brian Buchanan <brian@wasteland.calbbs.com>
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#
24203 |
|
24-Mar-1997 |
bde |
Don't include <sys/ioctl.h> in the kernel. Stage 1: don't include it when it is not used. In most cases, the reasons for including it went away when the special ioctl headers became self-sufficient.
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#
22975 |
|
22-Feb-1997 |
peter |
Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not ready for it yet.
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#
22579 |
|
12-Feb-1997 |
mpp |
Add function prototypes for most of the new Lite2 functions. Also made a few of the miscfs routines static to be consistent. Some modules simply required some additional #includes to remove -Wall warnings.
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#
22521 |
|
10-Feb-1997 |
dyson |
This is the kernel Lite/2 commit. There are some requisite userland changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes.
The system boots and can mount UFS filesystems.
Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed.
Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org>
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#
21673 |
|
14-Jan-1997 |
jkh |
Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
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#
13608 |
|
24-Jan-1996 |
peter |
Major fixes for procfs..
Implement a "variable" directory structure. Files that do not make sense for the given process do not "appear" and cannot be opened. For example, "system" processes do not have "file", "regs" or "fpregs", because they do not have a user area.
"attempt" to fill in the user area of a given process when it is being accessed via /proc/pid/mem (the user struct is just after VM_MAXUSER_ADDRESS in the process address space.)
Dont do IO to the U area while it's swapped, hold it in place if possible.
Lock off access to the "ctl" file if it's done a setuid like the other pseudo-files in there.
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#
12662 |
|
07-Dec-1995 |
dg |
Untangled the vm.h include file spaghetti.
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#
12595 |
|
03-Dec-1995 |
bde |
Added prototypes.
Removed some unnecessary #includes.
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#
9540 |
|
16-Jul-1995 |
bde |
Don't include <sys/tty.h> in drivers that aren't tty drivers or in general files that don't depend on the internals of <sys/tty.h>
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#
7090 |
|
16-Mar-1995 |
bde |
Add and move declarations to fix all of the warnings from `gcc -Wimplicit' (except in netccitt, netiso and netns) and most of the warnings from `gcc -Wnested-externs'. Fix all the bugs found. There were no serious ones.
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#
6569 |
|
20-Feb-1995 |
dg |
Make sure process isn't swapped when messing with it. Added missing newline to log() call.
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#
5312 |
|
31-Dec-1994 |
ache |
Fix problem when attached process detached Submitted by: Gary Jennejohn
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#
1817 |
|
02-Aug-1994 |
dg |
Added $Id$
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#
1541 |
|
24-May-1994 |
rgrimes |
BSD 4.4 Lite Kernel Sources
|