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Kyle Evans dc4636133f Allow kernel config to specify DTS/DTSO to build, and out-of-tree support
This allows for directives such as

makeoptions DTS+=/out/of/tree/myboard.dts
# in tree! Same rules applied as if this were in a dtb/ module
makeoptions DTS+=otherboard.dts

to be specified in config(5) and have these built/installed alongside th
kernel. The assumption that overlays live in an overlays/ directory is only
made for in-tree DTSO, but we still make the assumption that out-of-tree
arm64 DTS will be in vendored directories (for now).

This lowers the cost to hacking on an overlay or dts by being able to
quickly throw it in a custom config, especially if it doesn't fit one of the
current dtb/modules quite appropriately or it's not intended for commit
there.

The build/install targets were split out of dtb.mk to centralize the build
logic and leave out the all/realinstall/CLEANFILES additions... it was
believed that we didn't want to pollute the kernel build with these.

The build rules were converted to suffix rules at the suggestion of Ian to
clean things up a little bit in a world where we can have mixed
in-tree/out-of-tree DTS/DTSO specified.

Reviewed by:	ian
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D19351
2019-03-26 02:45:23 +00:00
bin Remove -n flag, fix setting date / time 2019-03-21 06:47:23 +00:00
cddl Ensure that we use a 64-bit value for the last mmap() argument. 2019-03-20 23:35:15 +00:00
contrib MFV r345515: netbsd-tests: import memory bump for libc/regex/t_exhaust 2019-03-26 02:21:09 +00:00
crypto Merge OpenSSL 1.1.1b. 2019-02-26 19:31:33 +00:00
etc MFHead@r345275 2019-03-18 19:21:53 +00:00
gnu Apply WITH_PIE changes to other binutils components 2019-03-25 01:18:26 +00:00
include Import OpenSSL 1.1.1b. 2019-02-26 18:06:51 +00:00
kerberos5 Add WITH_PIE knob to build Position Independent Executables 2019-02-15 22:22:38 +00:00
lib netbsd-tests: import memory bump for libc/regex/t_exhaust 2019-03-26 02:13:25 +00:00
libexec Add ability to automatically load ipfw_nat64, ipfw_nptv6 and ipfw_pmod 2019-03-23 15:41:32 +00:00
release Bump the IMAGE_SIZE for arm64 SoC images to prevent failures due 2019-03-21 14:17:55 +00:00
rescue rescue: set NO_SHARED in Makefile 2018-11-19 22:18:18 +00:00
sbin Make WD and WDC aliases for HGST. 2019-03-21 06:27:58 +00:00
secure Merge OpenSSL 1.1.1b. 2019-02-26 19:31:33 +00:00
share Add sysctl variable net.inet.tcp.rexmit_initial for setting RTO.Initial 2019-03-23 21:36:59 +00:00
stand lualoader: Fix up some luacheck concerns 2019-03-26 02:35:58 +00:00
sys Allow kernel config to specify DTS/DTSO to build, and out-of-tree support 2019-03-26 02:45:23 +00:00
targets retire LINKER_FEATURES filter flag 2018-11-12 20:44:22 +00:00
tests pf tests: Fix accidental duplication of content 2019-03-23 01:07:51 +00:00
tools Add description for WITHOUT_RETPOLINE 2019-03-24 23:26:03 +00:00
usr.bin Update mentor and calendar files 2019-03-22 17:37:14 +00:00
usr.sbin Correct contradictory information on default syslog logging priority. 2019-03-25 21:14:51 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.gitattributes MK_ZFS -> {MK_ZFS|MK_LOADER_ZFS}, this is so we can diable userland / kernel 2019-01-05 22:45:20 +00:00
.gitignore Ignore _.universe-toolchain file. 2018-07-01 13:50:37 +00:00
COPYRIGHT Happy New Year 2019! 2019-01-01 00:25:25 +00:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Update maintainers for libunwind and lldb. 2019-03-16 13:26:42 +00:00
Makefile Update comment about 'universe' disk usage 2018-11-10 19:09:48 +00:00
Makefile.inc1 Improve english grammar for kernel built time 2019-03-19 19:58:40 +00:00
Makefile.libcompat Use ...-freebsd13.0 in -target strings. 2018-11-12 16:55:20 +00:00
Makefile.sys.inc AUTO_OBJ: For all top-level targets enforce using an OBJDIR. 2017-12-05 21:29:47 +00:00
ObsoleteFiles.inc Set tentative merge date, and bump __FreeBSD_version. 2019-03-04 19:23:11 +00:00
README Import OpenSSL 1.1.1b. 2019-02-26 18:06:51 +00:00
README.md README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
UPDATING Add UPDATING note for geom_uzip(4)/xz, and bump geom_uzip(4) man page date. 2019-03-23 10:13:01 +00:00

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