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Jung-uk Kim a2d2c83668 - Merge savectx2() with savectx() and struct xpcb with struct pcb. [1]
savectx() is only used for panic dump (dumppcb) and kdb (stoppcbs).  Thus,
saving additional information does not hurt and it may be even beneficial.
Unfortunately, struct pcb has grown larger to accommodate more data.
Move 512-byte long pcb_user_save to the end of struct pcb while I am here.
- savectx() now saves FPU state unconditionally and copy it to the PCB of
FPU thread if necessary.  This gives panic dump and kdb a chance to take
a look at the current FPU state even if the FPU is "supposedly" not used.
- Resuming CPU now unconditionally reinitializes FPU.  If the saved FPU
state was irrelevant, it could be in an unknown state.

Suggested by:	bde [1]
2010-08-02 17:35:00 +00:00
bin Document the new argument parser for sleep(1) and SIGINFO behaviour. 2010-08-02 10:59:23 +00:00
cddl Fix another mismerge: bring back the definition of DT_MUTEX_HELD(). 2010-08-02 17:31:48 +00:00
contrib Properly warp around more code under COMPILE_ONLY to recover from build 2010-08-02 13:05:12 +00:00
crypto More commas 2010-06-01 22:46:57 +00:00
etc Allow starting /etc/rc.d/ipmon if ipnat is enabled but ipfilter is not 2010-08-01 15:41:00 +00:00
games grdc(6): fix timekeeping for user-supplied value n 2010-08-02 12:15:22 +00:00
gnu Fix case for library macros 2010-08-02 15:33:16 +00:00
include Connect powerpc64 to the build. It is not presently part of make universe, 2010-07-13 21:19:59 +00:00
kerberos5 Fix a typo. 2010-01-09 18:53:03 +00:00
lib Spelling fixes. 2010-08-02 16:01:45 +00:00
libexec 64 bit support for MIPS rtld. 2010-07-29 20:18:52 +00:00
release add some modern stuff: SMP, SCHED_ULE, PREEMPTION 2010-07-15 16:32:59 +00:00
rescue Enable liblzma support in libarchive 2010-05-10 15:28:44 +00:00
sbin Spelling fixes. 2010-07-31 21:09:49 +00:00
secure OpenSSL configuration for powerpc64 2010-07-10 22:07:48 +00:00
share Added myself (must have forgot a couple of years ago?) and fixed the 2010-08-02 16:18:41 +00:00
sys - Merge savectx2() with savectx() and struct xpcb with struct pcb. [1] 2010-08-02 17:35:00 +00:00
tools Update DTrace userland code to the latest available. 2010-08-02 12:13:33 +00:00
usr.bin mdoc: make sure to pass at least one argument to quotation macros 2010-08-02 13:11:35 +00:00
usr.sbin Fix the calltree top view that incorrectly filter out some nodes. 2010-08-02 13:40:19 +00:00
COPYRIGHT Happy New Year 2010! :-) 2009-12-31 10:00:37 +00:00
LOCKS Update LOCKS syntax. 2008-06-05 19:47:58 +00:00
MAINTAINERS Add a comment to MAINTAINERS indicating that sbin/routed is in fact 2010-04-10 12:29:09 +00:00
Makefile Connect FDT infrastructure to the build system. 2010-06-13 13:02:43 +00:00
Makefile.inc1 Relax FDT_DTS_FILE validation (and unbreak world build). 2010-07-15 13:21:25 +00:00
Makefile.mips Merge from TBEMD: 2010-06-24 16:28:52 +00:00
ObsoleteFiles.inc Add an entry to remove the acpi_boost(4) man page. 2010-07-27 14:26:38 +00:00
README
UPDATING Mention the removal of acpi_aiboost. 2010-07-25 18:32:59 +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, the most
commonly used one being ``world'', which rebuilds and installs
everything in the FreeBSD system from the source tree except the
kernel, the kernel-modules and the contents of /etc.  The ``world''
target should only be used in cases where the source tree has not
changed from the currently running version.  See:
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, documentation
for which can be found at:
   http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
And in the config(8) man page.
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 sample kernel configuration files reside in the sys/<arch>/conf
sub-directory (assuming that you've installed the kernel sources), the
file named GENERIC being the one used to build your initial installation
kernel.  The file NOTES contains entries and documentation for all possible
devices, not just those commonly used.  It is the successor of the ancient
LINT file, but in contrast to LINT, it is not buildable as a kernel but a
pure reference and documentation file.


Source Roadmap:
---------------
bin		System/user commands.

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.

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