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Dimitry Andric 986e05bc2a Completely revamp the way llvm, clang and lldb are built.
* Bootstrap llvm-tblgen and clang-tblgen with a minimal llvm static
  library, that has no other dependencies.
* Roll up all separate llvm libraries into one big static libllvm.
* Similar for all separate clang and lldb static libraries.
* For all these libraries, generate their .inc files only once.
* Link all llvm tools (including extra) against the big libllvm.
* Link clang and clang-format against the big libllvm and libclang.
* Link lldb against the big libllvm, libclang and liblldb.

N.B.: This is work in progress, some details may still be missing.

It also heavily depends on bsd.*.mk's support for SRCS and DPSRCS with
relative pathnames, which apparently does not always work as expected.
For building llvm, clang and lldb though, it seems to work just fine.

The main idea behind this restructuring is maintainability and build
peformance.  The previous large number of very small libraries, each
with their own generated files and dependencies was slow to traverse
and hard to understand.

Possible future improvements:
* Only build certain targets, e.g. for most regular users having just
  one target will be fine.  This will shave off some build time.
* Building the big llvm, clang and lldb libraries as shared (private)
  libraries.
* Adding other components from the LLVM project, such as lld.
2016-08-26 22:44:22 +00:00
bin MFhead @ r304038 2016-08-13 06:16:38 +00:00
cddl For now, don't error out on warnings about undefined behavior calling 2016-08-20 21:34:41 +00:00
contrib Slightly reduce diffs against upstream lldb, and comment out PDB support. 2016-08-25 21:13:16 +00:00
crypto Build OpenSSL assembly sources for arm. Tested with Raspberry Pi 2 Model B. 2016-08-22 20:59:34 +00:00
etc Merge ^/head r304236 through r304536. 2016-08-20 18:52:03 +00:00
gnu rename ARM's libunwind.S to to avoid conflict with llvm libunwind 2016-07-27 16:34:19 +00:00
include Vendor import of llvm release_39 branch r279477: 2016-08-24 17:35:37 +00:00
kerberos5 DIRDEPS_BUILD: Update dependencies 2016-06-14 16:55:05 +00:00
lib Completely revamp the way llvm, clang and lldb are built. 2016-08-26 22:44:22 +00:00
libexec Import Dragonfly Mail Agent snapshort from 20160806 aka v0.11+ 2016-08-20 16:36:05 +00:00
release Remove the ie(4) hardware list from the release documentation 2016-08-21 15:39:46 +00:00
rescue DIRDEPS_BUILD: Fix and hookup rescue/rescue to the build. 2016-05-26 23:20:40 +00:00
sbin Fix missing substitution of @SBINDIR@ in resolvconf scripts 2016-08-23 02:06:20 +00:00
secure Prefer C-style comments in assembly sources. 2016-08-22 21:49:17 +00:00
share FAST_DEPEND: Fix 'make all install' not properly rebuilding based on .depend.* files. 2016-08-23 19:37:18 +00:00
sys Fix key delay and repeat, part 1. 2016-08-23 19:50:16 +00:00
targets Remove the wl(4) driver and wlconfig(8) utility. 2016-08-19 22:27:14 +00:00
tests Only expect :encode_tv_random_million to fail on 64-bit platforms 2016-08-16 20:32:08 +00:00
tools Remove the wl(4) driver and wlconfig(8) utility. 2016-08-19 22:27:14 +00:00
usr.bin Completely revamp the way llvm, clang and lldb are built. 2016-08-26 22:44:22 +00:00
usr.sbin Use roundup2() from sys/param.h. 2016-08-23 13:43:43 +00:00
.arcconfig Remove project.name which is a product of a bygone era. 2016-04-21 04:33:07 +00:00
.arclint phabricator related changes: 2015-04-20 20:33:22 +00:00
COPYRIGHT Bump copyright year. 2015-12-31 11:21:45 +00:00
LOCKS
MAINTAINERS Remove myself from kern_timeout.c yeah! 2016-07-27 20:37:32 +00:00
Makefile Avoid showing the bootstrap make command for check-old, etc. 2016-08-12 13:52:51 +00:00
Makefile.inc1 Completely revamp the way llvm, clang and lldb are built. 2016-08-26 22:44:22 +00:00
Makefile.libcompat Fix in-tree GCC builds after r304681. 2016-08-23 19:29:37 +00:00
ObsoleteFiles.inc Remove the ie(4) driver for Intel 82586 ISA Ethernet adapters. 2016-08-20 00:49:29 +00:00
README README: remove nonexistent 'games' directory. 2016-05-18 10:43:13 +00:00
UPDATING Don't check for broadcast IPs on non-bcast pkts 2016-08-18 22:59:05 +00:00

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

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

The `buildkernel` and `installkernel` targets build and install
the kernel and the modules (see below).  Please see the top of
the Makefile in this directory for more information on the
standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process.  See build(7), config(8),
and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
for more information.

Note: If you want to build and install the kernel with the
`buildkernel` and `installkernel` targets, you might need to build
world before.  More information is available in the handbook.

The kernel configuration files reside in the sys/<arch>/conf
sub-directory.  GENERIC is the default configuration used in release builds.
NOTES contains entries and documentation for all possible
devices, not just those commonly used.


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.

sys		Kernel sources.

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:

  http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html