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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, the most
commonly used one being ``world'', which rebuilds and installs
everything in the FreeBSD system from the source tree except the
kernel, the kernel-modules and the contents of /etc.  The ``world''
target should only be used in cases where the source tree has not
changed from the currently running version.  See:
http://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, documentation
for which can be found at:
   http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
And in the config(8) man page.
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 sample kernel configuration files reside in the sys/<arch>/conf
sub-directory (assuming that you've installed the kernel sources), the
file named GENERIC being the one used to build your initial installation
kernel.  The file NOTES contains entries and documentation for all possible
devices, not just those commonly used.  It is the successor of the ancient
LINT file, but in contrast to LINT, it is not buildable as a kernel but a
pure reference and documentation file.


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.

games		Amusements.

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.

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:

  http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html

Recent activity

dteske

Commits by dteske were pushed to freebsd/freebsd-head

333e05e - Fix typo. Reviewed by: adrian (co-mentor) Approved by: adrian (co-mentor)
jimharris

Commits by jimharris were pushed to freebsd/freebsd-head

5a2b10c - Add ability to queue nvme_request objects if no nvme_trackers are available. This eliminates the need to manage queue depth at the nvd(4) level for Chatham ...
jimharris

Commits by jimharris were pushed to freebsd/freebsd-head

1e47fc3 - Preallocate a limited number of nvme_tracker objects per qpair, rather than dynamically creating them at runtime. Sponsored by: Intel
jimharris

Commits by jimharris were pushed to freebsd/freebsd-head

ce60c61 - Create nvme_qpair_submit_request() which eliminates all of the code duplication between the admin and io controller-level submit functions. Sponsored by: Intel
jimharris

Commits by jimharris were pushed to freebsd/freebsd-head

987e353 - Simplify how the qpair lock is acquired and released. Sponsored by: Intel
jimharris

Commits by jimharris were pushed to freebsd/freebsd-head

d15aa66 - Cleanup uio-related code to use struct nvme_request and nvme_ctrlr_submit_io_request(). While here, also fix case where a uio may have more than 1 iovec. NVMe's definition ...
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