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Bryan Drewery a7d84af890 Add WITH_SYSTEM_LINKER, on by default, that avoids building lld when possible.
This works similar to WITH_SYSTEM_COMPILER added in r300354.  It only
supports lld via WITH_LLD_BOOTSTRAP.

When both SYSTEM_COMPILER and SYSTEM_LINKER logic passes then libclang
will not build in cross-tools.  If either check fails though then
libclang is built.

The .info is reworked to notify when libclang will be built since if
either clang or lld needs to be rebuilt, but not the other, the
notification can lead to confusion on why "clang is building".

-fuse-ld= is not used with this method so some combinations of compiler
and linker are expected to fail.

A new 'make test-system-linker' target is added to see the logic results.

Makefile.inc1:
  CROSS_BINUTILS_PREFIX support had to be moved higher up so that XLD
  could be set and MK_LLD_BOOTSTRAP disabled before checking SYSTEM_LINKER
  logic as done with SYSTEM_COMPILER.  This also required moving where
  bsd.linker.mk was read since XLD needs to be set before parsing it.  This
  creates a situation where src.opts.mk can not test LINKER_FEATURES or
  add LLD_BOOTSTAP to BROKEN_OPTIONS.

Reviewed by:	emaste (earlier version)
Sponsored by:	Dell EMC
Differential Revision:	https://reviews.freebsd.org/D15894
2018-06-20 16:10:14 +00:00
bin Convert cap_enter() < 0 && errno != ENOSYS to caph_enter() < 0. 2018-06-19 23:43:14 +00:00
cddl The IP, TCP, and UDP provider report IP addresses as strings. 2018-06-18 18:35:29 +00:00
contrib Convert cap_enter() < 0 && errno != ENOSYS to caph_enter() < 0. 2018-06-19 23:43:14 +00:00
crypto Merge upstream patch to unbreak tunnel forwarding. 2018-05-16 14:04:39 +00:00
etc praudit(1): add tests 2018-06-17 17:31:16 +00:00
gnu Rework how the ld link is handled in WORLDTMP from r322811. 2018-06-20 16:10:02 +00:00
include Add time2posix and posix2time to time.h 2018-05-25 13:40:05 +00:00
kerberos5 various: general adoption of SPDX licensing ID tags. 2017-11-27 15:37:16 +00:00
lib Fix sources needed for lld. 2018-06-20 16:10:10 +00:00
libexec Make rtld use libc_nossp_pic.a. Remove SSP shims. 2018-05-09 10:30:56 +00:00
release Enable USB OTG serial terminal on ARM SD card images. This configures 2018-06-12 16:45:52 +00:00
rescue Avoid referencing private lib names directly. 2017-11-10 07:53:02 +00:00
sbin This application (veriexecctl) handles reading a fingerprints file 2018-06-20 01:08:54 +00:00
secure Upgrade to OpenSSH 7.7p1. 2018-05-11 13:22:43 +00:00
share Add WITH_SYSTEM_LINKER, on by default, that avoids building lld when possible. 2018-06-20 16:10:14 +00:00
stand Revert r335276 2018-06-20 00:14:54 +00:00
sys Add pmap_mapdev_attr for arm64 2018-06-20 16:07:35 +00:00
targets Remove obsolete asf(8) 2018-06-15 17:44:21 +00:00
tests audit(4): add tests for sendmsg, recvmsg, shutdown, and sendfile 2018-06-19 17:41:46 +00:00
tools Add WITH_SYSTEM_LINKER, on by default, that avoids building lld when possible. 2018-06-20 16:10:14 +00:00
usr.bin Rework how the ld link is handled in WORLDTMP from r322811. 2018-06-20 16:10:02 +00:00
usr.sbin Convert cap_enter() < 0 && errno != ENOSYS to caph_enter() < 0. 2018-06-19 23:43:14 +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 .git*: add gitattributes and gitignore 2017-12-25 21:07:54 +00:00
.gitignore .git*: add gitattributes and gitignore 2017-12-25 21:07:54 +00:00
COPYRIGHT Remove 'All Rights Reserved' from the collection copyright and templates. 2018-05-09 02:02:49 +00:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Pass on bhyve kernel module maintenance to 2018-06-10 04:25:19 +00:00
Makefile Add WITH_SYSTEM_LINKER, on by default, that avoids building lld when possible. 2018-06-20 16:10:14 +00:00
Makefile.inc1 Add WITH_SYSTEM_LINKER, on by default, that avoids building lld when possible. 2018-06-20 16:10:14 +00:00
Makefile.libcompat lib32: Fix lib/libpmc/pmu-events files ending up in source directory. 2018-06-15 18:50:24 +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 Remove obsolete asf(8) 2018-06-15 17:44:21 +00:00
README README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
README.md README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
UPDATING Explain why a __FreeBSD_version bump was done for r334930. 2018-06-12 22:52:27 +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