The whole point of the DIRDEPS_BUILD is to avoid tree walks and basically build everything in a single pass. We use the pseudo MACHINE "host" to represent the build host. When the build host is not FreeBSD or is an older version of FreeBSD it may need some help to build host-tools. The directory tools/build does this - building libegacy. local.sys.mk: create a pseudo option MK_host_egacy to indicate if tools/build needs to be built for "host". local.dirdeps.mk: set MK_host_egacy.host to ${MK_host_egacy} all other DEP_MACHINES will get "no" This allows a Makefile.depend.options in makefs etc to cause tools/build to be built for host but only if necessary. local.init.mk: use ISYSTEM as arg to -isystem so that it can be overridden. The default remains ${STAGE_INCLUDEDIR} src.init.mk: if MACHINE is host and we are not FreeBSD set some MK_ flags the same as tools/build/mk/Makefile.boot.pre and include src.init.${.MAKE.OS:tl}.mk if it exists. For older versions of FreeBSD add libegacy when building PROGs for "host" Also instead of -isystem${STAGE_INCLUDEDIR} we want -I${STAGE_INCLUDEDIR} and -isystem/usr/include so we override ISYSTEM. This means any headers we stage for "host" will take precedence over system headers but #include_next will DTRT. src.init.linux.mk: add -I${SRCTOP}/tools/build/cross-build/include/linux and generally deal with building host tools on Linux. Eg. static linking does not work so set NO_SHARED= no Override some HAVE_ flags. src.sys.env.mk: on linux awk throws an warning about # in newvers.sh just send stderr to /dev/null Reviewed by: jrtc27, arichardson Sponsored by: Juniper Networks, Inc. Differential Revision: https://reviews.freebsd.org/D39744 |
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.cirrus-ci | ||
.github | ||
bin | ||
cddl | ||
contrib | ||
crypto | ||
etc | ||
gnu | ||
include | ||
kerberos5 | ||
lib | ||
libexec | ||
release | ||
rescue | ||
sbin | ||
secure | ||
share | ||
stand | ||
sys | ||
targets | ||
tests | ||
tools | ||
usr.bin | ||
usr.sbin | ||
.arcconfig | ||
.arclint | ||
.cirrus.yml | ||
.clang-format | ||
.git-blame-ignore-revs | ||
.gitattributes | ||
.gitignore | ||
CONTRIBUTING.md | ||
COPYRIGHT | ||
LOCKS | ||
MAINTAINERS | ||
Makefile | ||
Makefile.inc1 | ||
Makefile.libcompat | ||
Makefile.sys.inc | ||
ObsoleteFiles.inc | ||
README.md | ||
RELNOTES | ||
UPDATING |
FreeBSD Source:
This is the top level of the FreeBSD source directory.
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), FreeBSD handbook on building userland, and Handbook for kernels for more information, including setting make(1) variables.
For information on the CPU architectures and platforms supported by FreeBSD, see the FreeBSD website's Platforms page.
Source Roadmap:
Directory | Description |
---|---|
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 | Commands and libraries under the GNU General Public License (GPL) or Lesser General Public License (LGPL). Please see gnu/COPYING and gnu/COPYING.LIB 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 (see sys/README.md). |
targets | Support for experimental DIRDEPS_BUILD |
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 FreeBSD Handbook.