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John Baldwin 64345f0b57 Add an extension to the character device interface that allows character
device drivers to use arbitrary VM objects to satisfy individual mmap()
requests.
- A new d_mmap_single(cdev, &foff, objsize, &object, prot) callback is
  added to cdevsw.  This function is called for each mmap() request.
  If it returns ENODEV, then the mmap() request will fall back to using
  the device's device pager object and d_mmap().  Otherwise, the method
  can return a VM object to satisfy this entire mmap() request via
  *object.  It can also modify the starting offset into this object via
  *foff.  This allows device drivers to use the file offset as a cookie
  to identify specific VM objects.
- vm_mmap_vnode() has been changed to call vm_mmap_cdev() directly when
  mapping V_CHR vnodes.  This avoids duplicating all the cdev mmap
  handling code and simplifies some of vm_mmap_vnode().
- D_VERSION has been bumped to D_VERSION_02.  Older device drivers
  using D_VERSION_01 are still supported.

MFC after:	1 month
2009-06-01 21:32:52 +00:00
bin use explicit 'unsigned int' instead of just the implicit-style 'unsigned' to make linting tools (e.g. FlexeLint) happy, too 2009-06-01 11:38:38 +00:00
cddl Fix lockstat breakage to arm/powerpc buildworld. 2009-05-27 22:41:28 +00:00
contrib - Add missing data argument to printf. 2009-06-01 09:25:32 +00:00
crypto Upgrade to OpenSSH 5.2p1. 2009-05-22 18:46:28 +00:00
etc Eliminate the warning that "Values of network_interfaces other than 2009-06-01 05:37:13 +00:00
games Too good to pass. 2009-03-06 13:24:54 +00:00
gnu Change the internal buffer used to store input lines from a static buffer 2009-05-08 02:18:46 +00:00
include Delete the old USB stack. The new stack has settled in and has all the 2009-05-27 16:16:56 +00:00
kerberos5
lib Document EINVAL for bind(2). 2009-06-01 09:32:12 +00:00
libexec Increase the size of the static TLS area slightly (required for the NVidia's 2009-05-27 18:54:31 +00:00
release nge(4) should work on all archs now. 2009-05-21 10:04:51 +00:00
rescue Add zfs/zpool to rescue programs 2009-05-23 00:47:23 +00:00
sbin Code for parsing nmount options in kernel was merged 2009-06-01 00:40:39 +00:00
secure Upgrade to OpenSSH 5.2p1. 2009-05-22 18:46:28 +00:00
share Add a simple API to manage scatter/gather lists of phyiscal addresses. 2009-06-01 20:35:39 +00:00
sys Add an extension to the character device interface that allows character 2009-06-01 21:32:52 +00:00
tools tools for mwl driver 2009-06-01 18:27:16 +00:00
usr.bin Change the "-4" option flag to "-e" since it does not refer to IPv4 2009-06-01 20:34:00 +00:00
usr.sbin Fix segfault when giving invalid long option to pkg_info. 2009-06-01 21:26:52 +00:00
COPYRIGHT Vendor import of BIND 9.6.1rc1 2009-05-31 00:11:36 +00:00
LOCKS
MAINTAINERS Replace anholt with myself as drm maintainer. 2009-03-20 18:51:13 +00:00
Makefile Add a new world named 'mips' to our universe. 2009-04-01 17:11:50 +00:00
Makefile.inc1 Revert c190007 at the request of Ruslan. It was not correct because 2009-04-05 00:24:49 +00:00
ObsoleteFiles.inc Removal of early.sh 2009-05-30 19:39:57 +00:00
README Vendor import of BIND 9.6.1rc1 2009-05-31 00:11:36 +00:00
UPDATING Decrement __FreeBSD_version again to 96 as we are runing out of digits 2009-06-01 18:07:38 +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