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opnsense-src/lib/libc/sys
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Konstantin Belousov 869fd80fd4 Use struct vdso_timehands data to implement fast gettimeofday(2) and 
clock_gettime(2) functions if supported. The speedup seen in
microbenchmarks is in range 4x-7x depending on the hardware.

Only amd64 and i386 architectures are supported. Libc uses rdtsc and
kernel data to calculate current time, if enabled by kernel.

Hopefully, this code is going to migrate into vdso in some future.

Discussed with:	bde
Reviewed by:	jhb
Tested by:	flo
MFC after:	1 month
2012-06-22 07:13:30 +00:00
..
__error.c Fix many "function declaration isn't a prototype" warnings in libc. 2009-12-05 19:31:38 +00:00
__vdso_gettimeofday.c Use struct vdso_timehands data to implement fast gettimeofday(2) and 2012-06-22 07:13:30 +00:00
_exit.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
abort2.2 Fix markup, language, function prototype, and example code. 2006-09-30 10:24:00 +00:00
accept.2 Attempt to reduce accidental foot-shooting by pointing out that 2009-11-02 07:21:13 +00:00
access.2 mdoc: move CAVEATS, BUGS and SECURITY CONSIDERATIONS sections to the 2010-05-13 12:07:55 +00:00
acct.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
adjtime.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
aio_cancel.2 style(9) cleanup 2008-04-03 02:41:54 +00:00
aio_error.2 Fix typo 2006-09-26 09:47:46 +00:00
aio_read.2 mdoc: drop redundant .Pp and .LP calls 2010-10-08 12:40:16 +00:00
aio_return.2 Reword previous delta a little bit. 2006-10-07 10:49:20 +00:00
aio_suspend.2 style(9) cleanup 2008-04-03 02:41:54 +00:00
aio_waitcomplete.2 mdoc(7) police: Tidy up the syscall language. 2002-12-18 09:22:32 +00:00
aio_write.2 mdoc: drop redundant .Pp and .LP calls 2010-10-08 12:40:16 +00:00
bind.2 Document EINVAL for bind(2). 2009-06-01 09:32:12 +00:00
brk.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
cap_enter.2 Fix various typos in manual pages. 2012-02-25 14:31:25 +00:00
cap_new.2 Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
chdir.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
chflags.2 Additional manual page updates for r234103. 2012-04-13 05:40:26 +00:00
chmod.2 Update sticky(7) cross references. 2011-05-13 16:29:57 +00:00
chown.2 Man pages for the openat(2), fexecve(2) and related syscalls. 2008-04-16 13:03:12 +00:00
chroot.2 Document the fact that chroot(2) is no longer part of POSIX since SUSv3 2012-01-04 02:04:20 +00:00
clock_gettime.2 mdoc: drop redundant .Pp and .LP calls 2010-10-08 12:40:16 +00:00
clock_gettime.c Use struct vdso_timehands data to implement fast gettimeofday(2) and 2012-06-22 07:13:30 +00:00
close.2 Clarify the implementation-defined behaviour in case of close(2) 2012-01-22 11:58:17 +00:00
closefrom.2 Add a new 'void closefrom(int lowfd)' system call. When called, it closes 2009-06-15 20:38:55 +00:00
connect.2 Add ECONNRESET to list of possible errors in connect(2). 2010-09-06 21:39:54 +00:00
cpuset.2 Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
cpuset_getaffinity.2 Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
dup.2 Return EBADF instead of EMFILE from dup2 when the second argument is 2012-04-11 14:08:09 +00:00
execve.2 Fix exec_imgact_shell()'s handling of two error cases: (1) Previously, if 2010-09-21 16:24:51 +00:00
extattr_get_file.2 Update this manual page to describe the extattr_list_file() and the 2008-01-29 18:15:38 +00:00
fcntl.2 Return EBADF instead of EMFILE from dup2 when the second argument is 2012-04-11 14:08:09 +00:00
fcntl.c Call the fcntl compatiblity wrapper from the thread library fcntl wrappers 2008-05-30 14:47:42 +00:00
ffclock.2 General mdoc(7) and typo fixes. 2012-05-08 18:56:21 +00:00
fhopen.2 Use 'manual page' instead of 'man page' for consistency. 2005-06-30 13:18:15 +00:00
flock.2 Document that flock can return ENOLCK 2011-11-10 06:20:18 +00:00
fork.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
fsync.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
ftruncate.c Change the C wrappers for mmap/lseek/pread/pwrite/truncate/ftruncate to 2007-07-04 23:27:38 +00:00
getdirentries.2 Globally replace u_int*_t from (non-contributed) man pages. 2012-02-12 18:29:56 +00:00
getdtablesize.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
getfh.2 getfh(2): Add xrefs for fhopen(2), open(2), stat(2). 2011-04-14 22:06:11 +00:00
getfsstat.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
getgid.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
getgroups.2 getgroups(2): Remove mention of <sys/param.h> and refer to sysconf(3). 2011-01-21 22:15:17 +00:00
getitimer.2 mdoc: remove literal tabs where they don't belong 2010-06-08 16:48:59 +00:00
getlogin.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
getloginclass.2 Add manual page for getloginclass(2) and setloginclass(2). 2011-03-06 08:35:50 +00:00
getpeername.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
getpgrp.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
getpid.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
getpriority.2 mdoc: make pages render with mandoc 2010-10-21 12:27:13 +00:00
getrlimit.2 Update xrefs from 4.3BSD to modern signal functions in various man pages. 2010-05-06 22:49:54 +00:00
getrusage.2 mdoc: remove literal tabs where they don't belong 2010-06-08 16:48:59 +00:00
getsid.2 mdoc(7) police: Tidy up the syscall language. 2002-12-18 09:22:32 +00:00
getsockname.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
getsockopt.2 Document SO_PROTOCOL socket option. 2012-02-26 13:57:24 +00:00
gettimeofday.2 mdoc: drop redundant .Pp and .LP calls 2010-10-08 12:40:16 +00:00
gettimeofday.c Use struct vdso_timehands data to implement fast gettimeofday(2) and 2012-06-22 07:13:30 +00:00
getuid.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
intro.2 Add description of ECAPMODE to errno(2) man page. 2011-03-03 11:29:48 +00:00
ioctl.2 Document FIONREAD, FIONWRITE and FIONSPACE. 2010-05-11 17:02:12 +00:00
issetugid.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
jail.2 A new jail(8) with a configuration file, ultimately to replace the work 2012-04-26 17:36:05 +00:00
kenv.2 Use 'manual page' instead of 'man page' for consistency. 2005-06-30 13:18:15 +00:00
kill.2 Extend the description for ESRCH a bit. 2012-03-15 12:12:39 +00:00
kldfind.2 mdoc(7) police: Tidy up the syscall language. 2002-12-18 09:22:32 +00:00
kldfirstmod.2 mdoc(7) police: Tidy up the syscall language. 2002-12-18 09:22:32 +00:00
kldload.2 Document that kldload(2) can also return EEXIST. 2003-06-03 12:29:34 +00:00
kldnext.2 Markup fixes. 2006-09-17 21:27:35 +00:00
kldstat.2 Fix comment to specify correct struct name. 2012-03-28 23:51:06 +00:00
kldsym.2 mdoc: drop redundant .Pp and .LP calls 2010-10-08 12:40:16 +00:00
kldunload.2 Document that kldunloadf can return EINVAL. 2008-12-25 09:15:31 +00:00
kqueue.2 Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
kse.2 mdoc: Ud takes no argument. 2012-03-29 16:20:20 +00:00
ktrace.2 General mdoc(7) and typo fixes. 2012-05-08 18:56:21 +00:00
link.2 Correct AT_SYMLINK_FOLLOW flag name in linkat(2) man page. 2009-07-19 16:48:25 +00:00
lio_listio.2 Add missing word "returns." 2006-10-07 05:13:32 +00:00
listen.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
lseek.2 Clarify the SEEK_HOLE description, it repositions the file pointer. 2012-05-26 05:25:55 +00:00
lseek.c Change the C wrappers for mmap/lseek/pread/pwrite/truncate/ftruncate to 2007-07-04 23:27:38 +00:00
madvise.2 Add the posix_fadvise(2) system call. It is somewhat similar to 2011-11-04 04:02:50 +00:00
Makefile.inc Use struct vdso_timehands data to implement fast gettimeofday(2) and 2012-06-22 07:13:30 +00:00
mincore.2 Add support to mincore for detecting whether a page is part of a 2008-03-28 04:29:27 +00:00
minherit.2 Bump manpage date, missed during the last change. 2007-10-30 15:28:43 +00:00
mkdir.2 - Forgot to bump a date after last change 2008-06-30 08:46:09 +00:00
mkfifo.2 Man pages for the openat(2), fexecve(2) and related syscalls. 2008-04-16 13:03:12 +00:00
mknod.2 mknod(2): The required include is <sys/stat.h>, not <unistd.h>. 2011-01-16 21:59:50 +00:00
mlock.2 Update mlockall(2) to mention that it's superuser-only syscall, just 2010-07-27 20:34:37 +00:00
mlockall.2 Update mlockall(2) to mention that it's superuser-only syscall, just 2010-07-27 20:34:37 +00:00
mmap.2 Do not claim that msync(2) is obsoleted [1]. 2012-03-17 23:55:18 +00:00
mmap.c Change the C wrappers for mmap/lseek/pread/pwrite/truncate/ftruncate to 2007-07-04 23:27:38 +00:00
modfind.2 mdoc(7) police: Tidy up the syscall language. 2002-12-18 09:22:32 +00:00
modnext.2 Expand *n't contractions. 2005-02-13 22:25:33 +00:00
modstat.2 mdoc: drop redundant .Pp and .LP calls 2010-10-08 12:40:16 +00:00
mount.2 Change the current working directory to be inside the jail created by 2010-05-27 03:15:04 +00:00
mprotect.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
mq_close.2 mdoc: remove literal tabs where they don't belong 2010-06-08 16:48:59 +00:00
mq_getattr.2 mdoc: remove literal tabs where they don't belong 2010-06-08 16:48:59 +00:00
mq_notify.2 mdoc: remove literal tabs where they don't belong 2010-06-08 16:48:59 +00:00
mq_open.2 mdoc: remove literal tabs where they don't belong 2010-06-08 16:48:59 +00:00
mq_receive.2 mdoc: remove literal tabs where they don't belong 2010-06-08 16:48:59 +00:00
mq_send.2 mdoc: remove literal tabs where they don't belong 2010-06-08 16:48:59 +00:00
mq_setattr.2 mq_setattr(2): Add missing const to man page. 2011-05-17 21:03:34 +00:00
msgctl.2 Move msg{snd,recv,get,ctl} manual pages from section 3 to 2. 2009-07-13 12:53:43 +00:00
msgget.2 Move msg{snd,recv,get,ctl} manual pages from section 3 to 2. 2009-07-13 12:53:43 +00:00
msgrcv.2 Move msg{snd,recv,get,ctl} manual pages from section 3 to 2. 2009-07-13 12:53:43 +00:00
msgsnd.2 General mdoc(7) and typo fixes. 2012-05-08 18:56:21 +00:00
msync.2 Do not claim that msync(2) is obsoleted [1]. 2012-03-17 23:55:18 +00:00
munmap.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
nanosleep.2 In nanosleep(2), note that the calling thread is put to sleep, not the 2009-10-11 16:23:11 +00:00
nfssvc.2 Globally replace u_int*_t from (non-contributed) man pages. 2012-02-12 18:29:56 +00:00
ntp_adjtime.2 Fix typos, spelling, formatting and mdoc mistakes found by Nobuyuki while 2010-08-16 15:18:30 +00:00
open.2 Fix mdoc errors. 2011-04-01 19:57:27 +00:00
pathconf.2 General mdoc(7) and typo fixes. 2012-05-08 18:56:21 +00:00
pdfork.2 fix a further typo in the pdfork(2) man page. 2012-04-30 08:00:52 +00:00
pipe.2 Several cleanups related to pipe(2). 2008-11-11 14:55:59 +00:00
poll.2 Sort sections. 2005-01-20 09:17:07 +00:00
posix_fadvise.2 Further refine the implementation of POSIX_FADV_NOREUSE. 2012-06-19 18:42:24 +00:00
posix_fallocate.2 Remove superfluous paragraph macro. 2012-03-25 12:13:24 +00:00
posix_openpt.2 Integrate the new MPSAFE TTY layer to the FreeBSD operating system. 2008-08-20 08:31:58 +00:00
pread.c Change the C wrappers for mmap/lseek/pread/pwrite/truncate/ftruncate to 2007-07-04 23:27:38 +00:00
profil.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
pselect.2 Move pselect(3) man page to section 2. 2009-10-28 11:14:32 +00:00
ptrace.2 Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
pwrite.c Change the C wrappers for mmap/lseek/pread/pwrite/truncate/ftruncate to 2007-07-04 23:27:38 +00:00
quotactl.2 Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
read.2 pread(2) might fail with EBUSY, so document it 2012-04-29 22:23:00 +00:00
readlink.2 Man pages for the openat(2), fexecve(2) and related syscalls. 2008-04-16 13:03:12 +00:00
reboot.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
recv.2 mdoc: drop redundant .Pp and .LP calls 2010-10-08 12:40:16 +00:00
rename.2 Add one more EACCES clause to rename.2. 2008-11-07 15:01:40 +00:00
revoke.2 Add revoke(1). 2009-06-15 21:52:27 +00:00
rfork.2 Document RFTSIGZMB. Fix spelling of SIGCHLD. Note that signals are 2011-07-12 20:38:42 +00:00
rmdir.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
rtprio.2 General mdoc(7) and typo fixes. 2012-05-08 18:56:21 +00:00
sched_get_priority_max.2 Mechanically kill hard sentence breaks. 2004-07-02 23:52:20 +00:00
sched_setparam.2 Sort SEE ALSO references (in dictionary order, ignoring case). 2004-07-04 20:55:50 +00:00
sched_setscheduler.2 mdoc: drop redundant .Pp and .LP calls 2010-10-08 12:40:16 +00:00
sched_yield.2 Mechanically kill hard sentence breaks. 2004-07-02 23:52:20 +00:00
sctp_generic_recvmsg.2 Miscellaneous mdoc, spelling and inconsistency fixes. 2010-01-12 21:45:03 +00:00
sctp_generic_sendmsg.2 Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
sctp_peeloff.2 Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
select.2 Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
semctl.2 Make the structure definitions in the man pages match the real code, and 2009-06-29 18:54:17 +00:00
semget.2 Expand contractions. 2005-02-15 09:27:00 +00:00
semop.2 Fix incorrect usage of 'assure' and 'insure'. 2010-08-28 16:32:01 +00:00
send.2 Standardize the various prison_foo_ip[46] functions and prison_if to 2009-02-05 14:06:09 +00:00
sendfile.2 Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
setfib.2 Remove tab from kernel configuration option. This is consistent with the rest 2012-05-12 16:08:05 +00:00
setgroups.2 In preparation for raising NGROUPS and NGROUPS_MAX, change base 2009-06-19 15:58:24 +00:00
setpgid.2 Describe what setpgid(2) does when pgid=0. The text has been 2009-12-01 06:12:31 +00:00
setregid.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
setresuid.2 mdoc(7) police: Tidy up the syscall language. 2002-12-18 09:22:32 +00:00
setreuid.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
setsid.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
setuid.2 Make man page wording more clear: 2012-01-15 20:14:52 +00:00
shm_open.2 General mdoc(7) and typo fixes. 2012-05-08 18:56:21 +00:00
shmat.2 Update shmget(2) with POSIX access permissions and remove non-standard SHM_R, 2010-12-17 21:10:08 +00:00
shmctl.2 Update shmget(2) with POSIX access permissions and remove non-standard SHM_R, 2010-12-17 21:10:08 +00:00
shmget.2 Sort cross references by section. 2010-12-18 10:09:07 +00:00
shutdown.2 Fix license. Clause 4 is still required (UCB materiel). 2007-03-07 13:38:11 +00:00
sigaction.2 Update xrefs from 4.3BSD to modern signal functions in various man pages. 2010-05-06 22:49:54 +00:00
sigaltstack.2 Use NULL instead of 0 for pointer in example. 2010-08-29 16:38:08 +00:00
sigpending.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
sigprocmask.2 sigprocmask(2): pthread_sigmask(3) must be used in threaded processes. 2010-05-07 20:46:22 +00:00
sigqueue.2 General mdoc(7) and typo fixes. 2012-05-08 18:56:21 +00:00
sigreturn.2 Update xrefs from 4.3BSD to modern signal functions in various man pages. 2010-05-06 22:49:54 +00:00
sigstack.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
sigsuspend.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
sigwait.2 Clarify the behaviour of sigwait() on signal interruption, and note 2011-08-25 10:00:38 +00:00
sigwait.c Because POSIX does not allow EINTR to be returned from sigwait(), 2010-09-10 01:47:37 +00:00
sigwaitinfo.2 Clarify the behaviour of sigwait() on signal interruption, and note 2011-08-25 10:00:38 +00:00
socket.2 Note that the protocol argument can be set to 0. 2009-01-05 12:18:46 +00:00
socketpair.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
stack_protector.c Clang related fixes: 2010-10-13 16:57:06 +00:00
stack_protector_compat.c Move the __stack_chk_fail_local@FBSD_1.0 compat symbol definition into 2010-08-24 12:58:54 +00:00
stat.2 Remove invalid remark about pipes. 2012-06-02 10:50:25 +00:00
statfs.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
swapon.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
Symbol.map - Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate() 2011-11-21 01:26:10 +00:00
symlink.2 Man pages for the openat(2), fexecve(2) and related syscalls. 2008-04-16 13:03:12 +00:00
sync.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
sysarch.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
syscall.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
timer_create.2 General mdoc(7) and typo fixes. 2012-05-08 18:56:21 +00:00
timer_delete.2 General mdoc(7) and typo fixes. 2012-05-08 18:56:21 +00:00
timer_settime.2 General mdoc(7) and typo fixes. 2012-05-08 18:56:21 +00:00
truncate.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
truncate.c Change the C wrappers for mmap/lseek/pread/pwrite/truncate/ftruncate to 2007-07-04 23:27:38 +00:00
umask.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
undelete.2 Per Regents of the University of Calfornia letter, remove advertising 2007-01-09 00:28:16 +00:00
unlink.2 General mdoc(7) and typo fixes. 2012-05-08 18:56:21 +00:00
utimes.2 Man pages for the openat(2), fexecve(2) and related syscalls. 2008-04-16 13:03:12 +00:00
utrace.2 The NetBSD Foundation has granted permission to remove clause 3 and 4 from 2010-03-02 17:20:04 +00:00
uuidgen.2 Fix all the spelling mistakes I could find in the man pages for words 2005-07-31 03:30:48 +00:00
vfork.2 Update xrefs from 4.3BSD to modern signal functions in various man pages. 2010-05-06 22:49:54 +00:00
wait.2 Note how wait(3) is implemented. 2011-06-18 00:53:51 +00:00
write.2 The sys/uio.h header is needed only for readv(2), preadv(2), writev(2) and 2012-01-22 11:15:48 +00:00