189 lines
5.3 KiB
Groff
189 lines
5.3 KiB
Groff
.\" Copyright (c) 2018 Edward Tomasz Napierala <trasz@FreeBSD.org>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd May 16, 2019
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.Dt DEVELOPMENT 7
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.Os
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.Sh NAME
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.Nm development
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.Nd introduction to
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.Fx
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development process
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.Sh DESCRIPTION
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.Fx
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development is split into three major suprojects: doc, ports, and src.
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Doc is the documentation, such as the
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.Fx
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Handbook.
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To read more, see:
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.Pp
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.Lk https://www.FreeBSD.org/doc/en/books/fdp-primer/
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.Pp
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Ports, described further in
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.Xr ports 7 ,
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are the way to build, package, and install third party software.
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To read more, see:
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.Pp
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.Lk https://www.FreeBSD.org/doc/en/books/porters-handbook/
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.Pp
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The last one, src, revolves around the source code for the base system,
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consisting of the kernel, and the libraries and utilities commonly called
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the world.
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.Pp
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The Committer's Guide, describing topics relevant to all committers,
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can be found at:
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.Pp
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.Lk https://www.FreeBSD.org/doc/en/articles/committers-guide/
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.Pp
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.Fx
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src development takes place in the CURRENT branch in Subversion,
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located at:
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.Pp
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.Lk https://svn.FreeBSD.org/base/head
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.Pp
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There is also a read-only GitHub mirror at:
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.Pp
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.Lk https://github.com/freebsd/freebsd
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.Pp
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Changes are first committed to CURRENT and then usually merged back
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to STABLE.
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Every few years the CURRENT branch is renamed to STABLE, and a new
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CURRENT is branched, with an incremented major version number.
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Releases are then branched off STABLE and numbered with consecutive minor
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numbers.
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.Pp
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Layout of the source tree is described in
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.Xr hier 7 .
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Build instructions can be found in
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.Xr build 7
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and
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.Xr release 7 .
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Kernel programming interfaces (KPIs) are documented in section 9
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manual pages; use
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.Ql "apropos -s 9 ."
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for a list.
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Regression test suite is described in
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.Xr tests 7 .
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For coding conventions, see
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.Xr style 9 .
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.Pp
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To ask questions regarding development, use the mailing lists,
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such as freebsd-arch@ and freebsd-hackers@:
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.Pp
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.Lk https://lists.FreeBSD.org
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.Pp
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To get your patches integrated into the main
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.Fx
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repository use Phabricator;
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it is a code review tool that allows other developers to review the changes,
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suggest improvements, and, eventually, allows them to pick up the change and
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commit it:
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.Pp
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.Lk https://reviews.FreeBSD.org
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.Sh EXAMPLES
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Check out the CURRENT branch, build it, and install, overwriting the current
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system:
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.Bd -literal -offset indent
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svnlite co https://svn.FreeBSD.org/base/head src
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cd src
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make -sj8 buildworld buildkernel installkernel
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shutdown -r now
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.Ed
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.Pp
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After reboot:
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.Bd -literal -offset indent
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cd src
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make -j8 installworld
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reboot
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.Ed
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.Pp
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Rebuild and reinstall a single piece of userspace, in this
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case
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.Xr ls 1 :
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.Bd -literal -offset indent
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cd src/bin/ls
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make clean all install
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.Ed
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.Pp
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Quickly rebuild and reinstall the kernel, only recompiling the files
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changed since last build; note that this will only work if the full kernel
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build has been completed in the past, not on a fresh source tree:
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.Bd -literal -offset indent
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cd src
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make -sj8 kernel KERNFAST=1
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.Ed
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.Pp
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To rebuild parts of
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.Fx
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for another CPU architecture,
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first prepare your source tree by building the cross-toolchain:
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.Bd -literal -offset indent
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cd src
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make -sj8 toolchain TARGET_ARCH=armv6
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.Ed
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.Pp
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Afterwards, to build and install a single piece of userspace, use:
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.Bd -literal -offset indent
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cd src/bin/ls
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make buildenv TARGET_ARCH=armv6
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make clean all install DESTDIR=/clients/arm
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.Ed
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.Pp
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Likewise, to quickly rebuild and reinstall the kernel, use:
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.Bd -literal -offset indent
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cd src
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make buildenv TARGET_ARCH=armv6
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make -sj8 kernel KERNFAST=1 DESTDIR=/clients/arm
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.Ed
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.Sh SEE ALSO
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.Xr svnlite 1 ,
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.Xr witness 4 ,
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.Xr build 7 ,
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.Xr hier 7 ,
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.Xr ports 7 ,
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.Xr release 7 ,
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.Xr locking 9 ,
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.Xr style 9
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.Sh HISTORY
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The
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.Nm
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manual page was originally written by
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.An Matthew Dillon Aq Mt dillon@FreeBSD.org
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and first appeared
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in
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.Fx 5.0 ,
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December 2002.
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It was since extensively modified by
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.An Eitan Adler Aq Mt eadler@FreeBSD.org
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to reflect the repository conversion from
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.Xr cvs 1
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to
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.Xr svn 1 .
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It was rewritten from scratch by
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.An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org
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for
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.Fx 12.0 .
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