609 lines
16 KiB
Groff
609 lines
16 KiB
Groff
.\" Copyright (c) 2000
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.\" Mike W. Meyer
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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 AUTHOR ``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 AUTHOR 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 September 29, 2011
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.Dt BUILD 7
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.Os
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.Sh NAME
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.Nm build
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.Nd information on how to build the system
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.Sh DESCRIPTION
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The sources for the
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.Fx
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system and its applications are contained in three different directories,
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normally
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.Pa /usr/src ,
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.Pa /usr/doc ,
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and
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.Pa /usr/ports .
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Directory
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.Pa /usr/src
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contains the
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.Dq "base system"
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sources, which is loosely defined as the things required to rebuild
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the system to a useful state.
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Directory
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.Pa /usr/doc
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contains the source for the system documentation, excluding the manual
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pages.
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Directory
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.Pa /usr/ports
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contains a tree that provides a consistent interface for building and
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installing third party applications.
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For more information about the ports build process, see
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.Xr ports 7 .
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.Pp
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The
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.Xr make 1
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command is used in each of these directories to build and install the
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things in that directory.
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Issuing the
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.Xr make 1
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command in any directory or
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subdirectory of those directories has the same effect as issuing the
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same command in all subdirectories of that directory.
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With no target specified, the things in that directory are just built.
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.Pp
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A source tree is allowed to be read-only.
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As described in
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.Xr make 1 ,
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objects are usually built in a separate object directory hierarchy
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specified by the environment variable
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.Va MAKEOBJDIRPREFIX ,
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or under
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.Pa /usr/obj
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if variable
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.Va MAKEOBJDIRPREFIX
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is not set.
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For a given source directory, its canonical object directory
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would be
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.Pa ${MAKEOBJDIRPREFIX}${.CURDIR}
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if
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.Xr make 1
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variable
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.Va MAKEOBJDIRPREFIX
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is set, or
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.Pa /usr/obj${.CURDIR}
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if this variable is not set.
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Cross-builds set the object directory as described in the
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documentation for the
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.Cm buildworld
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target below.
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.Pp
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The build may be controlled by defining
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.Xr make 1
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variables described in the
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.Sx ENVIRONMENT
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section below, and by the variables documented in
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.Xr make.conf 5 .
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.Pp
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The following list provides the names and actions for the targets
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supported by the build system:
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.Bl -tag -width ".Cm cleandepend"
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.It Cm clean
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Remove any files created during the build process.
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.It Cm cleandepend
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Remove the file
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.Pa ${.OBJDIR}/${DEPENDFILE}
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generated by a prior
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.Dq Li "make depend"
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step.
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.It Cm cleandir
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Remove the canonical object directory if it exists, or perform
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actions equivalent to
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.Dq Li "make clean cleandepend"
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if it does not.
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This target will also remove an
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.Pa obj
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link in
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.Pa ${.CURDIR}
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if that exists.
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.Pp
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It is advisable to run
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.Dq Li "make cleandir"
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twice: the first invocation will remove the canonical object directory
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and the second one will clean up
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.Pa ${.CURDIR} .
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.It Cm depend
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Generate a list of build dependencies in file
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.Pa ${.OBJDIR}/${DEPENDFILE} .
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.It Cm install
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Install the results of the build to the appropriate location in the
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installation directory hierarchy specified in variable
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.Va DESTDIR .
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.It Cm obj
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Create the canonical object directory associated with the current
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directory.
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.It Cm objlink
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Create a symbolic link to the canonical object directory in
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.Pa ${.CURDIR} .
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.It Cm tags
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Generate a tags file using the program specified in the
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.Xr make 1
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variable
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.Va CTAGS .
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The build system supports
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.Xr ctags 1
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and
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.Nm "GNU Global" .
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.El
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.Pp
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The other supported targets under directory
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.Pa /usr/src
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are:
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.Bl -tag -width ".Cm distributeworld"
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.It Cm buildenv
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Spawn an interactive shell with environment variables set up for
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cross-building the system.
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The target architecture needs to be specified with
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.Xr make 1
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variables
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.Va TARGET_ARCH
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and
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.Va TARGET .
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.Pp
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This target is only useful after a complete cross-toolchain including
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the compiler, linker, assembler, headers and libraries has been
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built; see the
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.Cm toolchain
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target below.
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.It Cm buildworld
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Build everything but the kernel, configure files in
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.Pa etc ,
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and
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.Pa release .
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The actual build location prefix used is
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.Pa ${MAKEOBJDIRPREFIX}${.CURDIR}
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for native builds, and
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.Pa ${MAKEOBJDIRPREFIX}/${TARGET}${.CURDIR}
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for cross builds and native builds with variable
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.Va CROSS_BUILD_TESTING
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set.
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.It Cm cleanworld
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Attempt to clean up targets built by a preceding
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.Cm buildworld
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step.
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.It Cm distributeworld
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Distribute everything compiled by a preceding
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.Cm buildworld
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step.
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Files are placed in the directory hierarchy specified by
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.Xr make 1
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variable
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.Va DISTDIR .
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This target is used while building a release; see
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.Xr release 7 .
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.It Cm packageworld
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Archive the results of
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.Cm distributeworld ,
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placing the results in
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.Va DISTDIR .
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This target is used while building a release; see
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.Xr release 7 .
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.It Cm installworld
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Install everything built by a preceding
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.Cm buildworld
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step into the directory hierarchy pointed to by
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.Xr make 1
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variable
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.Va DESTDIR .
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.Pp
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If installing onto an NFS file system and running
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.Xr make 1
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with the
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.Fl j
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option, make sure that
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.Xr rpc.lockd 8
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is running on both client and server.
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See
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.Xr rc.conf 5
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on how to make it start at boot time.
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.It Cm toolchain
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Create the build toolchain needed to build the rest of the system.
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For cross-architecture builds, this step creates a cross-toolchain.
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.It Cm universe
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For each architecture,
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execute a
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.Cm buildworld
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followed by a
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.Cm buildkernel
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for all kernels for that architecture,
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including
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.Pa LINT .
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This command takes a long time.
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.It Cm update
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Get updated sources as configured in
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.Xr make.conf 5 .
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.It Cm targets
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Print a list of supported
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.Va TARGET
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/
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.Va TARGET_ARCH
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pairs for world and kernel targets.
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.It Cm tinderbox
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Execute the same targets as
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.Cm universe .
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In addition print a summary of all failed targets at the end and
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exit with an error if there were any.
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.It Cm toolchains
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Create a build toolchain for each architecture supported by the build system.
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.El
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.Pp
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Kernel specific build targets in
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.Pa /usr/src
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are:
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.Bl -tag -width ".Cm distributekernel"
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.It Cm buildkernel
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Rebuild the kernel and the kernel modules.
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.It Cm installkernel
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Install the kernel and the kernel modules to directory
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.Pa ${DESTDIR}/boot/kernel ,
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renaming any pre-existing directory with this name to
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.Pa kernel.old
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if it contained the currently running kernel.
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The target directory under
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.Pa ${DESTDIR}
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may be modified using the
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.Va INSTKERNNAME
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and
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.Va KODIR
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.Xr make 1
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variables.
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.It Cm distributekernel
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Install the kernel to the directory
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.Pa ${DISTDIR}/kernel/boot/kernel .
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This target is used while building a release; see
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.Xr release 7 .
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.It Cm packagekernel
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Archive the results of
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.Cm distributekernel ,
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placing the results in
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.Va DISTDIR .
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This target is used while building a release; see
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.Xr release 7 .
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.It Cm kernel
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Equivalent to
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.Cm buildkernel
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followed by
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.Cm installkernel
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.It Cm kernel-toolchain
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Rebuild the tools needed for kernel compilation.
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Use this if you did not do a
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.Cm buildworld
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first.
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.It Cm reinstallkernel
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Reinstall the kernel and the kernel modules, overwriting the contents
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of the target directory.
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As with the
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.Cm installkernel
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target, the target directory can be specified using the
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.Xr make 1
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variable
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.Va INSTKERNNAME .
|
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.El
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.Pp
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Convenience targets for cleaning up the install destination directory
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denoted by variable
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.Va DESTDIR
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include:
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.Bl -tag -width ".Cm delete-old-libs"
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.It Cm check-old
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Print a list of old files and directories in the system.
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.It Cm delete-old
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Delete obsolete base system files and directories interactively.
|
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When
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.Li -DBATCH_DELETE_OLD_FILES
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is specified at the command line, the delete operation will be
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non-interactive.
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The variables
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.Va DESTDIR ,
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.Va TARGET_ARCH
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and
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.Va TARGET
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should be set as with
|
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.Dq Li "make installworld" .
|
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.It Cm delete-old-libs
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Delete obsolete base system libraries interactively.
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This target should only be used if no 3rd party software uses these
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libraries.
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When
|
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.Li -DBATCH_DELETE_OLD_FILES
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is specified at the command line, the delete operation will be
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non-interactive.
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The variables
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.Va DESTDIR ,
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.Va TARGET_ARCH
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and
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.Va TARGET
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should be set as with
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.Dq Li "make installworld" .
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.El
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.Sh ENVIRONMENT
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Variables that influence all builds include:
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.Bl -tag -width ".Va MAKEOBJDIRPREFIX"
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.It Va DEBUG_FLAGS
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|
Defines a set of debugging flags that will be used to build all userland
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binaries under
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.Pa /usr/src .
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|
When
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.Va DEBUG_FLAGS
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is defined, the
|
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.Cm install
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and
|
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.Cm installworld
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targets install binaries from the current
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.Va MAKEOBJDIRPREFIX
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without stripping,
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so that debugging information is retained in the installed binaries.
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.It Va DESTDIR
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The directory hierarchy prefix where built objects will be installed.
|
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If not set,
|
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.Va DESTDIR
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defaults to the empty string.
|
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.It Va MAKEOBJDIRPREFIX
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Defines the prefix for directory names in the tree of built objects.
|
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Defaults to
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.Pa /usr/obj
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if not defined.
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This variable should only be set in the environment and not via
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.Pa /etc/make.conf
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or the command line.
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.It Va NO_WERROR
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If defined, compiler warnings will not cause the build to halt,
|
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even if the makefile says otherwise.
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.It Va WITH_CTF
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If defined, the build process will run the DTrace CTF conversion
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tools on built objects.
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Please note that this WITH_ option is handled differently than all
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other WITH_ options (there is no
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.Va WITHOUT_CTF ,
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or corresponding
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.Va MK_CTF
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in the build system).
|
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.El
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.Pp
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|
Additionally, builds in
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.Pa /usr/src
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|
are influenced by the following
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.Xr make 1
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|
variables:
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.Bl -tag -width ".Va SUBDIR_OVERRIDE"
|
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.It Va KERNCONF
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Overrides which kernel to build and install for the various kernel
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make targets.
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It defaults to
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.Cm GENERIC .
|
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.It Va KERNFAST
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If set, the build target
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.Cm buildkernel
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defaults to setting
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.Va NO_KERNELCLEAN ,
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|
.Va NO_KERNELCONFIG ,
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|
.Va NO_KERNELDEPEND
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|
and
|
|
.Va NO_KERNELOBJ .
|
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When set to a value other than
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.Cm 1
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|
then
|
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.Va KERNCONF
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|
is set to the value of
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.Va KERNFAST .
|
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.It Va LOCAL_DIRS
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|
If set, this variable supplies a list of additional directories to
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build, relative to the root of the source tree.
|
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.It Va PORTS_MODULES
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A list of ports with kernel modules that should be built and installed
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as part of the
|
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.Cm buildkernel
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and
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.Cm installkernel
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process.
|
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.Bd -literal -offset indent
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make PORTS_MODULES=emulators/kqemu-kmod kernel
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.Ed
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.It Va SUBDIR_OVERRIDE
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|
Override the default list of sub-directories and only build the
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sub-directory named in this variable.
|
|
This variable is useful when debugging failed builds.
|
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.Bd -literal -offset indent
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make some-target SUBDIR_OVERRIDE=foo/bar
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.Ed
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.It Va TARGET
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The target hardware platform.
|
|
This is analogous to the
|
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.Dq Nm uname Fl m
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output.
|
|
This is necessary to cross-build some target architectures.
|
|
For example, cross-building for PC98 machines requires
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.Va TARGET_ARCH Ns = Ns Li i386
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and
|
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.Va TARGET Ns = Ns Li pc98 .
|
|
If not set,
|
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.Va TARGET
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defaults to the current hardware platform.
|
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.It Va TARGET_ARCH
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The target machine processor architecture.
|
|
This is analogous to the
|
|
.Dq Nm uname Fl p
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|
output.
|
|
Set this to cross-build for a different architecture.
|
|
If not set,
|
|
.Va TARGET_ARCH
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|
defaults to the current machine architecture, unless
|
|
.Va TARGET
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|
is also set, in which case it defaults to the appropriate
|
|
value for that platform.
|
|
Typically, one only needs to set
|
|
.Va TARGET .
|
|
.El
|
|
.Pp
|
|
Builds under directory
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.Pa /usr/src
|
|
are also influenced by defining one or more of the following symbols,
|
|
using the
|
|
.Fl D
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|
option of
|
|
.Xr make 1 :
|
|
.Bl -tag -width ".Va -DNO_KERNELDEPEND"
|
|
.It Va NO_CLEANDIR
|
|
If set, the build targets that clean parts of the object tree use the
|
|
equivalent of
|
|
.Dq make clean
|
|
instead of
|
|
.Dq make cleandir .
|
|
.It Va NO_CLEAN
|
|
If set, no object tree files are cleaned at all.
|
|
Setting
|
|
.Va NO_CLEAN
|
|
implies
|
|
.Va NO_KERNELCLEAN ,
|
|
so when
|
|
.Va NO_CLEAN
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|
is set no kernel objects are cleaned either.
|
|
.It Va NO_CTF
|
|
If set, the build process does not run the DTrace CTF conversion tools
|
|
on built objects.
|
|
.It Va NO_SHARE
|
|
If set, the build does not descend into the
|
|
.Pa /usr/src/share
|
|
subdirectory (i.e. manpages, locale data files, timezone data files and
|
|
other
|
|
.Pa /usr/src/share
|
|
files will not be rebuild from their sources).
|
|
.It Va NO_KERNELCLEAN
|
|
If set, the build process does not run
|
|
.Dq make clean
|
|
as part of the
|
|
.Cm buildkernel
|
|
target.
|
|
.It Va NO_KERNELCONFIG
|
|
If set, the build process does not run
|
|
.Xr config 8
|
|
as part of the
|
|
.Cm buildkernel
|
|
target.
|
|
.It Va NO_KERNELDEPEND
|
|
If set, the build process does not run
|
|
.Dq make depend
|
|
as part of the
|
|
.Cm buildkernel
|
|
target.
|
|
.It Va NO_KERNELOBJ
|
|
If set, the build process does not run
|
|
.Dq make obj
|
|
as part of the
|
|
.Cm buildkernel
|
|
target.
|
|
.It Va NO_DOCUPDATE
|
|
If set, the update process does not update the source of the
|
|
.Fx
|
|
documentation as part of the
|
|
.Dq make update
|
|
target.
|
|
.It Va NO_PORTSUPDATE
|
|
If set, the update process does not update the Ports tree as part of the
|
|
.Dq make update
|
|
target.
|
|
.It Va NO_WWWUPDATE
|
|
If set, the update process does not update the www tree as part of the
|
|
.Dq make update
|
|
target.
|
|
.El
|
|
.Pp
|
|
Builds under directory
|
|
.Pa /usr/doc
|
|
are influenced by the following
|
|
.Xr make 1
|
|
variables:
|
|
.Bl -tag -width ".Va DOC_LANG"
|
|
.It Va DOC_LANG
|
|
If set, restricts the documentation build to the language subdirectories
|
|
specified as its content.
|
|
The default action is to build documentation for all languages.
|
|
.El
|
|
.Pp
|
|
Builds using the
|
|
.Cm universe
|
|
target are influenced by the following
|
|
.Xr make 1
|
|
variables:
|
|
.Bl -tag -width ".Va MAKE_JUST_KERNELS"
|
|
.It Va JFLAG
|
|
Pass the value of this variable to each
|
|
.Xr make 1
|
|
invocation used to build worlds and kernels.
|
|
This can be used to enable multiple jobs within a single architecture's build
|
|
while still building each architecture serially.
|
|
.It Va MAKE_JUST_KERNELS
|
|
Only build kernels for each supported architecture.
|
|
.It Va MAKE_JUST_WORLDS
|
|
Only build worlds for each supported architecture.
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|
.It Va UNIVERSE_TARGET
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|
Execute the specified
|
|
.Xr make 1
|
|
target for each supported architecture instead of the default action of
|
|
building a world and one or more kernels.
|
|
.El
|
|
.Sh FILES
|
|
.Bl -tag -width ".Pa /usr/share/examples/etc/make.conf" -compact
|
|
.It Pa /usr/doc/Makefile
|
|
.It Pa /usr/doc/share/mk/doc.project.mk
|
|
.It Pa /usr/ports/Mk/bsd.port.mk
|
|
.It Pa /usr/ports/Mk/bsd.sites.mk
|
|
.It Pa /usr/share/examples/etc/make.conf
|
|
.It Pa /usr/src/Makefile
|
|
.It Pa /usr/src/Makefile.inc1
|
|
.El
|
|
.Sh EXAMPLES
|
|
For an
|
|
.Dq approved
|
|
method of updating your system from the latest sources, please see the
|
|
.Sx COMMON ITEMS
|
|
section in
|
|
.Pa src/UPDATING .
|
|
.Pp
|
|
The following sequence of commands can be used to cross-build the
|
|
system for the sparc64 architecture on an i386 host:
|
|
.Bd -literal -offset indent
|
|
cd /usr/src
|
|
make TARGET=sparc64 buildworld
|
|
make TARGET=sparc64 DESTDIR=/clients/sparc64 installworld
|
|
.Ed
|
|
.Sh SEE ALSO
|
|
.Xr cc 1 ,
|
|
.Xr install 1 ,
|
|
.Xr make 1 ,
|
|
.Xr make.conf 5 ,
|
|
.Xr src.conf 5 ,
|
|
.Xr ports 7 ,
|
|
.Xr release 7 ,
|
|
.Xr config 8 ,
|
|
.Xr mergemaster 8 ,
|
|
.Xr reboot 8 ,
|
|
.Xr shutdown 8
|
|
.Sh AUTHORS
|
|
.An Mike W. Meyer Aq mwm@mired.org .
|