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mjoras 9c18ca3bd2 Introduce EVENTHANDLER_LIST and some users.
This introduces a facility to EVENTHANDLER(9) for explicitly defining a
reference to an event handler list. This is useful since previously all
invokers of events had to do a locked traversal of the global list of
event handler lists in order to find the appropriate event handler list.
By keeping a pointer to the appropriate list an invoker can avoid this
traversal completely. The pointer is initialized with SYSINIT(9) during
the eventhandler stage. Users registering interest in events do not need
to know if the event is backed by such a list, since the list is added
to the global list of lists. As with lists that are not pre-defined it
is safe to register for the events before the list has been created.

This converts the process_* and thread_* events to using the new
facility, as these are events whose locked traversals end up showing up
significantly in ports build workflows (and presumably other workflows
with many short lived threads/procs). It may be advantageous to convert
other events to using the new facility.

The el_flags field is now unused, but leave it be so that this revision
can be MFC'd.

Reviewed by:	bdrewery, markj, mjg
Approved by:	rstone (mentor)
In collaboration with:  ian
MFC after:      4 weeks
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D12814
2017-11-09 22:51:48 +00:00
bin Fix cosmetic nit when printing out "override $mode" and "$owner/$group ..." 2017-11-05 21:43:26 +00:00
cddl DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
contrib lld: accept EINVAL to indicate posix_fallocate is unsupported 2017-11-05 00:51:53 +00:00
crypto Merge OpenSSL 1.0.2m. 2017-11-02 18:04:29 +00:00
etc Add suitable knob ifconfig_<interface>_descr for static interface description. 2017-11-08 16:53:11 +00:00
gnu build-tools: De-special-case the gcc tools build. 2017-10-31 19:02:05 +00:00
include libc: Do not refer to _DefaultRuneLocale in ctype inlines 2017-10-22 20:01:07 +00:00
kerberos5 DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
lib s/NgSendMsgReply/NgSendReplyMsg/ in man to match the code. 2017-11-08 12:34:47 +00:00
libexec DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
release Specify WITH_UNIFIED_OBJDIR in chroot_arm_build_release() to 2017-11-06 17:59:04 +00:00
rescue Remove badsect(8). 2017-11-05 22:00:54 +00:00
sbin Add a place for a driver to report rx timestamps in nanoseconds from 2017-11-07 09:29:14 +00:00
secure Merge OpenSSL 1.0.2m. 2017-11-02 18:04:29 +00:00
share Introduce EVENTHANDLER_LIST and some users. 2017-11-09 22:51:48 +00:00
sys Introduce EVENTHANDLER_LIST and some users. 2017-11-09 22:51:48 +00:00
targets Fix nested MAKEOBJDIRPREFIX breaking various release/buildworld/toolchain targets. 2017-11-05 00:11:51 +00:00
tests DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
tools [bsdbox] fix compilation due to library work. 2017-11-09 01:41:00 +00:00
usr.bin Revert r325365 2017-11-08 23:11:15 +00:00
usr.sbin Remove useless .if. The whole point of SUBDIR.yes was so that we 2017-11-09 14:31:25 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint
COPYRIGHT Bump copyright year. 2016-12-31 12:41:42 +00:00
LOCKS
MAINTAINERS Add asomers as a pjdfstest co-maintainer per the project status change 2017-06-28 09:25:15 +00:00
Makefile universe: Fix creating LINT files with AUTO_OBJ. 2017-11-08 23:41:27 +00:00
Makefile.inc1 Note interactive shell errors for make buildenv and add a warning for 2017-11-07 15:01:38 +00:00
Makefile.libcompat Fix nested MAKEOBJDIRPREFIX breaking various release/buildworld/toolchain targets. 2017-11-05 00:11:51 +00:00
ObsoleteFiles.inc Propagate the same condition for obsolete files as we use to generate 2017-11-08 03:10:40 +00:00
README Correct the URLs for both READMEs for tracking src 2017-10-29 20:29:31 +00:00
README.md Correct the URLs for both READMEs for tracking src 2017-10-29 20:29:31 +00:00
UPDATING Add an UPDATING entry for the posix_fallocate/ZFS change, r325320 2017-11-06 15:29:33 +00:00

FreeBSD Source:

This is the top level of the FreeBSD source directory. This file was last revised on: FreeBSD

For copyright information, please see the file COPYRIGHT in this directory (additional copyright information also exists for some sources in this tree - please see the specific source directories for more information).

The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7) and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html for more information, including setting make(1) variables.

The buildkernel and installkernel targets build and install the kernel and the modules (see below). Please see the top of the Makefile in this directory for more information on the standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process. See build(7), config(8), and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information.

Note: If you want to build and install the kernel with the buildkernel and installkernel targets, you might need to build world before. More information is available in the handbook.

The kernel configuration files reside in the sys/<arch>/conf sub-directory. GENERIC is the default configuration used in release builds. NOTES contains entries and documentation for all possible devices, not just those commonly used.

Source Roadmap:

bin				System/user commands.

cddl			Various commands and libraries under the Common Development  
				and Distribution License.

contrib			Packages contributed by 3rd parties.

crypto			Cryptography stuff (see crypto/README).

etc				Template files for /etc.

gnu				Various commands and libraries under the GNU Public License.  
				Please see gnu/COPYING* for more information.

include			System include files.

kerberos5		Kerberos5 (Heimdal) package.

lib				System libraries.

libexec			System daemons.

release			Release building Makefile & associated tools.

rescue			Build system for statically linked /rescue utilities.

sbin			System commands.

secure			Cryptographic libraries and commands.

share			Shared resources.

sys				Kernel sources.

tests			Regression tests which can be run by Kyua.  See tests/README
				for additional information.

tools			Utilities for regression testing and miscellaneous tasks.

usr.bin			User commands.

usr.sbin		System administration commands.

For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see:

https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html