FreeBSD Source:

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

FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.

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), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.

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.

stand       Boot loader sources.

sys     Kernel sources.

sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
        used in release builds. NOTES contains documentation of
        all possible entries.

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