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* bzero -> memsettedu2014-01-211-3/+3
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* Correct the handling of I/O of >=2^32 bytes and the ktracing there ofguenther2013-09-141-4/+3
| | | | | | by using size_t/ssize_t instead of int/u_int to handle I/O lengths in uiomove(), vn_fsizechk(), and ktrgenio(). Eliminate the always-zero 'error' argument to ktrgenio() at the same time.
* Snapshots for all archs have been built, so remove the T32 codeguenther2013-09-141-140/+1
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* Switch time_t, ino_t, clock_t, and struct kevent's ident and dataguenther2013-08-131-1/+140
| | | | | | | | | | | | | | | | | | | | members to 64bit types. Assign new syscall numbers for (almost all) the syscalls that involve the affected types, including anything with time_t, timeval, itimerval, timespec, rusage, dirent, stat, or kevent arguments. Add a d_off member to struct dirent and replace getdirentries() with getdents(), thus immensely simplifying and accelerating telldir/seekdir. Build perl with -DBIG_TIME. Bump the major on every single base library: the compat bits included here are only good enough to make the transition; the T32 compat option will be burned as soon as we've reached the new world are are happy with the snapshots for all architectures. DANGER: ABI incompatibility. Updating to this kernel requires extra work or you won't be able to login: install a snapshot instead. Much assistance in fixing userland issues from deraadt@ and tedu@ and build assistance from todd@ and otto@
* always implement stub utrace syscall, but keep the body #ifdef KTRACEtedu2013-06-011-1/+21
| | | | ok guenther matthew
* select(-1, ...) should fail with EINVAL.guenther2013-05-191-3/+5
| | | | ok matthew@
* Extend P_SIGSUSPEND handling in userret() to properly restore thematthew2013-04-291-62/+172
| | | | | | | | | | | | | | | sigmask even if there are no pending signals under the temporary sigmask. Refactor existing select() and poll() system calls to introduce the pselect() and ppoll() system calls. Add rthread wrappers for pselect() and ppoll(). While there, update cancellation point comments to reflect recent fdatasync() addition. Minor bumps for libc and librthread due to new symbols. ok guenther, millert, deraadt, jmc
* Print the fd_set used by select in kdump.claudio2012-07-091-1/+15
| | | | OK guenther@ and deraadt@
* Compare the size of the static fd_mask against the number of bytes neededclaudio2012-07-091-2/+2
| | | | | not against the number bit / number of fds in the select set. ok guenther@
* Add struct proc * argument to FRELE() and FILE_SET_MATURE() inguenther2012-04-221-6/+6
| | | | | | anticipation of further changes to closef(). No binary change. ok krw@ miod@ deraadt@
* Add tracing and dumping of "pointer to struct" syscall arguments forguenther2012-03-191-1/+5
| | | | | | structs timespec, timeval, sigaction, and rlimit. ok otto@ jsing@
* Hold struct filedesc's fd_lock when writing to the fd_ofiles, fd_ofileflags,guenther2012-02-151-4/+7
| | | | | | | | or fd_{lo,hi}maps members, or when doing a read for a write. Fixes hangs when an rthreaded processes sleeps while copying the fd table for fork() and catches another thread with the lock. ok jsing@ tedu@
* Document a non-obvious reason why something can't overflow.guenther2011-11-061-3/+5
| | | | Discussed with deraadt@
* Since we have an ioctl that uses a struct with an off_t member as itskettenis2010-12-191-2/+2
| | | | | | | | argument, we need to make sure this buffer has 64-bit alignment, even on 32-bit architectures. Fixes the alignment trap triggered by vnconfig(8) on sparc for kernels compiled with gcc4. ok miod@
* delete some rogue spaces and tabs. no binary change.marco2010-08-181-8/+8
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* Correct the links between threads, processes, pgrps, and sessions,guenther2010-07-261-4/+4
| | | | | | | | | so that the process-level stuff is to/from struct process and not struct proc. This fixes a bunch of problem cases in rthreads. Based on earlier work by blambert and myself, but mostly written at c2k10. Tested by many: deraadt, sthen, krw, ray, and in snapshots
* Devices which don't have read or write functionality should not returnderaadt2010-07-081-2/+8
| | | | | | | enodev to poll, because this returns an errno of 19 in revents. Oops. Use seltrue where needed, and use a new selfalse function for those which don't know if the next op will be non-blocking Mostly discussed with guenther and miod
* In sys_ioctl(), change the type of stkbuf to u_long to make sure it iskettenis2010-04-111-3/+3
| | | | | | | | properly aligned. Otherwise we lose on strict alignment architectures if the compiler happens to give it a smaller alignment. Fixes another gcc4 problem on sparc64. ok miod@
* Every selwakeup() should have a matching KNOTE() (even if kqueue isn'tnicm2009-11-091-1/+2
| | | | | | | | | | supported it doesn't do any harm), so put the KNOTE() in selwakeup() itself and remove it from any occurences where both are used, except one for kqueue itself and one in sys_pipe.c (where the selwakeup is under a PIPE_SEL flag). Based on a diff from tedu. ok deraadt
* must calculate iovlen or ktrace panics the machine; diff from blambertderaadt2009-06-081-5/+7
| | | | | and it is pretty critical so commiting it now. Any more fallout from the code 'simplication'?
* Put readv/writev changes back in, as they no longer hang ckuethe's ntpd.blambert2009-06-041-158/+61
| | | | | | Special thanks to ckuethe's ntpd for noticing the problem. ok deraadt@
* Revert readv/writev changes, as they trigger an apparent file descriptorblambert2009-06-031-81/+183
| | | | | | deadlock for ckuethe@ "if you have to revert, you have to revert" deraadt@
* set needfree to NULL in sys_writev() so stack garbagethib2009-06-021-2/+2
| | | | | | does not cause us to call free if we never malloced. crash found by & OK marco@
* it is better when ramdisks compilederaadt2009-06-021-3/+3
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* dofile{read,write} are essentially identical to their iovec equivalents,blambert2009-06-021-183/+81
| | | | | | | dofile{read,write}v, so remove the former and rework it so that everything uses the latter "nice" deraadt@ "reads ok" oga@ spastic 'OMG Ponies!!!!' weingart@
* Only copy out the revents field, not the whole pollfd structure. Thiskurt2009-03-241-3/+23
| | | | | | | allows threaded programs to concurrently update the events field while a thread is blocked in poll(2). okay deraadt@ millert@
* Move the functionality of psignal() to a new function ptsignal()guenther2008-12-161-3/+3
| | | | | | | | | | | | | that takes an additional argument "type" that indicates whether the signal is for the process, just a particular thread, or propagated to a thread because it's not caught or blocked. psignal() becomes a wrapper that does the first of those. So that sys_kill() can tell apart signals for the process and signals for the process's original thread, the tid of the original thread is defined as its pid + THREAD_PID_OFFSET. ok tedu@ art@ andreas@ kurt@ "better early than late" deraadt@
* Use M_ZERO in a few more places to shave bytes from the kernel.art2007-09-071-3/+2
| | | | eyeballed and ok dlg@
* Back out the tracking of procs in struct selinfo. There's one seriousart2007-07-251-36/+20
| | | | | | | bug in the code, but as soon as I try to fix it, it seems to trigger some other bugs. Instead of trying to figure out what's going on while everyone suffers, it's better to back out and figure out the bugs outside the tree.
* Kill the horrible hack of storing the pid in struct selinfo.art2007-03-241-20/+36
| | | | | | | | Instead, keep the proc pointer in it and put the selinfo on a list in struct proc in selrecord. Then clean up the list when leaving sys_select and sys_poll. miod@ ok, testing by many, including Bobs spamd boxes.
* Since p_flag is often manipulated in interrupts and without biglockart2007-03-151-8/+8
| | | | | | | | | | | | it's a good idea to use atomic.h operations on it. This mechanic change updates all bit operations on p_flag to atomic_{set,clear}bits_int. Only exception is that P_OWEUPC is set by MI code before calling need_proftick and it's automatically cleared by ADDUPC. There's no reason for MD handling of that flag since everyone handles it the same way. kettenis@ ok
* Repair FIOGETOWN operation; from Alexandre Ratchov.miod2006-04-151-7/+7
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* do per file io accounting and show that in fstat as well; pedro@ marco@ okmickey2006-03-261-3/+14
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* copyout() the pollfds if poll() gets interrupted. This resets the reventsclaudio2006-03-151-2/+4
| | | | | bitmask and makes poll() behave like documented in the man page. OK deraadt@
* ansi/deregister. No binary change.jsg2005-12-131-77/+24
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* sys_select() used to use 6 local fd_set's in case the width was <= thederaadt2005-08-011-22/+16
| | | | | | | size of an fd_set (ie. 256 bits), to avoid the malloc. that is a lot of local storage. change the cross-over point to 32-bits, which is more fair. if you select with large widths, you pay the price. tested by dlg, read by millert and pascoe, run on all machines
* This moves access to wall and uptime variables in MI code,tholo2004-06-241-23/+30
| | | | | | | | | | | | | | encapsulating all such access into wall-defined functions that makes sure locking is done as needed. It also cleans up some uses of wall time vs. uptime some places, but there is sure to be more of these needed as well, particularily in MD code. Also, many current calls to microtime() should probably be changed to getmicrotime(), or to the {,get}microuptime() versions. ok art@ deraadt@ aaron@ matthieu@ beck@ sturm@ millert@ others "Oh, that is not your problem!" from miod@
* debranch SMP, have funniklas2004-06-131-3/+4
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* Add an nfds_t type as per POSIX and also add pollfd_t like Solaris has.millert2003-12-101-11/+11
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* Replace select backends with poll backends. selscan() and pollscan()millert2003-09-231-40/+31
| | | | | | | now call the poll backend. With this change we implement greater poll(2) functionality instead of emulating it via the select backend. Adapted from NetBSD and including some changes from FreeBSD. Tested by many, deraadt@ OK
* match syscallargs comments with realityhenning2003-09-011-2/+2
| | | | | from Patrick Latifi <patrick.l@hermes.usherb.ca> ok jason@ tedu@
* remove caddr_t casts. it's just silly to cast something when the functiontedu2003-07-211-15/+14
| | | | takes a void *. convert uiomove to take a void * as well. ok deraadt@
* fix nfds type; tedu marc okderaadt2003-06-231-2/+7
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* Remove the advertising clause in the UCB license which Berkeleymillert2003-06-021-6/+2
| | | | rescinded 22 July 1999. Proofed by myself and Theo.
* Missing FRELE() call on writev(2) error condition; art@ ok.aaron2002-08-121-3/+5
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* SCARG cleanup; okay millert@provos2002-08-111-21/+16
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* First round of __P removal in sysmillert2002-03-141-4/+4
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* On sparc, PAGE_SIZE and friends might not be a compile-time constant.miod2002-03-131-1/+3
| | | | | | | | | | Instead of using a homegrown set of variables in this case, rely on uvmexp fields once uvm has been initialized. This requires a few #include <uvm/uvm_extern.h> here and there in the kernel as well. Idea from art@, changes by me.
* More FREF/FRELE on relevant places. Now, only sys_mmap and a bunch of ioctl functions in sys/compat are left.art2002-02-131-10/+15
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* Require a FREFd file in dofilewrite{,v}.art2002-02-081-3/+9
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