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Andrew Turner 9d4de283d5 Rework the exception entry/return functions to make them valid frames to be
unwound through. For this we need the frame pointer (x29) to point to the
location on the stack where we stored the previous frame pointer, and link
register. To simplify this the stack pointer is only adjusted by addition
and subtraction, and not through the use of post increment on loads and
stores.

The updated frame layout is:

+------------+
| lr -- x30  |
+------------+
| fp -- x29  | <-- x29 points at this
+------------+
| Trap frame |
| ...        |
|            | <-- sp points at this
+------------+

The only difference is the first two items, and setting of x29.

Sponsored by:	ABT Systems Ltd
2015-12-01 12:37:04 +00:00
bin Update dependencies after r291406 added libelf to libkvm. 2015-12-01 05:18:48 +00:00
cddl META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
contrib [wpa] use IFM_IEEE80211_ADHOC for now on FreeBSD for IBSS operation. 2015-11-26 17:28:40 +00:00
crypto r291198 inadvertantly reverted a local patch for the default location 2015-11-26 23:05:40 +00:00
etc Revert r290840 2015-12-01 06:22:27 +00:00
gnu META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
include Stop building vers.c in include/ and only build the needed osreldate.h. 2015-11-25 19:10:59 +00:00
kerberos5 META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
lib Move libelf.so.2 from /usr/lib to /lib to unbreak libkvm use after r291406 2015-12-01 06:09:22 +00:00
libexec META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
release Fix tmpfs(5) '/tmp' mount point. 2015-11-25 19:10:04 +00:00
rescue Fix the build after ifconfig was converted over to lib80211 in r291470 2015-11-30 16:34:13 +00:00
sbin META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
secure META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
share META MODE: Add some basic bootstrapping support for no Makefile.depend. 2015-12-01 05:29:30 +00:00
sys Rework the exception entry/return functions to make them valid frames to be 2015-12-01 12:37:04 +00:00
targets META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
tests Disable mqueue test # 3 and # 4 until __mq_oshandle is properly publicized 2015-12-01 07:52:41 +00:00
tools add missing lib80211 include. 2015-11-30 09:02:28 +00:00
usr.bin META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
usr.sbin META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
.arcconfig Add repository.callsign, to help arcanist figure out what repo it's 2015-07-02 22:23:52 +00:00
.arclint phabricator related changes: 2015-04-20 20:33:22 +00:00
COPYRIGHT Bump copyright year. 2014-12-31 10:00:43 +00:00
LOCKS
MAINTAINERS Move recently added entry above the "old" line. 2015-11-17 19:03:55 +00:00
Makefile Rename META_MODE option to DIRDEPS_BUILD 2015-11-14 03:24:48 +00:00
Makefile.inc1 Add support to libkvm for reading vmcores from other architectures. 2015-11-27 18:58:26 +00:00
ObsoleteFiles.inc Move libelf.so.2 from /usr/lib to /lib to unbreak libkvm use after r291406 2015-12-01 06:09:22 +00:00
README README: changes and fixups 2015-04-19 07:16:44 +00:00
UPDATING Document the __FreeBSD_version bump done for r291527 in UPDATING. 2015-11-30 22:46:34 +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