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Andriy Gapon 2d69831b85 lahf/sahf are supported on some amd64 processors
While the instructions were not included into the original instruction
set, their support can be indicated by a special feature bit.
For example:
  CPU: AMD Phenom(tm) II X4 955 Processor (3214.71-MHz K8-class CPU)
  ...
    AMD Features2=0x37ff<LAHF, ...>

Clang 3.8 uses lahf/sahf as a faster alternative to pushf/popf where
possible.

MFC after:	2 weeks
2016-04-22 13:44:12 +00:00
bin Use NULL instead of 0 for pointers. 2016-04-19 00:40:43 +00:00
cddl MFV r298471: 6052 decouple lzc_create() from the implementation details 2016-04-22 13:00:27 +00:00
contrib Use sizeof(*uuser) instead of sizeof(struct usm_user) for consistency with 2016-04-22 08:11:26 +00:00
crypto Re-add AES-CBC ciphers to the default cipher list on the server. 2016-03-11 00:23:10 +00:00
etc Turn ssh_host_dsa_key back on until PR#208254 is taken care of. 2016-04-17 03:57:37 +00:00
gnu Add missing function prototypes in KGDB 2016-04-20 20:22:48 +00:00
include MFH 2016-04-16 02:32:12 +00:00
kerberos5 Remove the old depend (mkdep) code and make FAST_DEPEND the one true way. 2016-03-30 23:50:23 +00:00
lib 6052 decouple lzc_create() from the implementation details 2016-04-22 12:51:55 +00:00
libexec rtld-elf: use our roundup2() macro when param.h is available. 2016-04-19 20:12:46 +00:00
release Replace the A20 kernel config with a generic ALLWINNER kernel config that 2016-04-21 16:49:04 +00:00
rescue Split /rescue into its own package. 2016-02-08 14:27:45 +00:00
sbin Use macro MAX() from sys/param.h. 2016-04-22 03:32:14 +00:00
secure MFH 2016-04-04 23:55:32 +00:00
share Follow-up r298219: Don't error with 'make all install'. 2016-04-21 16:12:55 +00:00
sys lahf/sahf are supported on some amd64 processors 2016-04-22 13:44:12 +00:00
targets Simplify building libpam and fix libpam.a not containing the modules since r284345. 2016-04-14 01:17:03 +00:00
tests Fix issues identified by Coverity 2016-04-19 23:15:47 +00:00
tools Remove leftover from Big5HKSCS removal 2016-04-17 12:12:25 +00:00
usr.bin Use roundup2() macro from sys/param.h. 2016-04-22 06:23:23 +00:00
usr.sbin Use MIN()/MAX() macros from sys/param.h. 2016-04-22 06:25:32 +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 Explicitly require Security Officer's approval for kernel PRNG bits. 2013-09-17 14:19:05 +00:00
MAINTAINERS Add myself to MAINTAINERS. 2016-03-14 16:27:43 +00:00
Makefile Follow-up r298220: Don't pass down META_MODE which will still enable it. 2016-04-18 18:39:43 +00:00
Makefile.inc1 Fix unset variables from r298417. 2016-04-21 16:50:45 +00:00
Makefile.libcompat Set CPP from XCPP for the libcompat build. 2016-04-15 18:32:05 +00:00
ObsoleteFiles.inc Rename units.lib -> definitions.units 2016-04-19 05:18:12 +00:00
README README: changes and fixups 2015-04-19 07:16:44 +00:00
UPDATING Add update. 2016-04-15 04:45:37 +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.

games		Amusements.

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