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Enji Cooper 7d0a282a12 kvm_geterr: handle kd == NULL in a deterministic/graceful manner
Return a NUL string instead of just working by accident with kvm_geterr(3)
when MALLOC_PRODUCTION is disabled (I didn't confirm the MALLOC_PRODUCTION
being enabled path).

Document the new explicit return behavior for kvm_geterr(3), as well
as the previous implicit behavior, i.e., the buffer attached to
returned via kvm_geterr(3) would be empty if a previous error hadn't been
stored in `kd`.

Differential Revision:	D10022
MFC after:	1 week
Reviewed by:	vangyzen
Sponsored by:	Dell EMC Isilon
2017-03-21 19:02:17 +00:00
bin sh: Fix build with -DDEBUG=2. 2017-03-19 21:18:53 +00:00
cddl cddl: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:30:04 +00:00
contrib Hide struct inpcb, struct tcpcb from the userland. 2017-03-21 06:39:49 +00:00
crypto Upgrade to OpenSSH 7.4p1. 2017-03-06 01:37:05 +00:00
etc Remove empty Big5 directory from share/nls 2017-03-19 18:03:52 +00:00
gnu Temporary readd GNU diff 2017-03-19 17:19:59 +00:00
include Add clock_nanosleep() 2017-03-19 00:51:12 +00:00
kerberos5 kerberos5: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:34:36 +00:00
lib kvm_geterr: handle kd == NULL in a deterministic/graceful manner 2017-03-21 19:02:17 +00:00
libexec Remove unused vmmeter. 2017-03-17 04:16:14 +00:00
release ec2.conf and vmimage.subr can be used from the installation livecd after 2017-03-09 01:26:10 +00:00
rescue Fix linking /rescue/rescue to multiple programs in usr.bin after r315113 2017-03-20 22:33:22 +00:00
sbin The .Cm macro usage fixed. 2017-03-21 13:01:08 +00:00
secure Upgrade to OpenSSH 7.4p1. 2017-03-06 01:37:05 +00:00
share Pet manlint. 2017-03-20 04:41:36 +00:00
sys tighten buffer bounds in imgact_binmisc_populate_interp 2017-03-21 18:02:14 +00:00
targets pwait: Add a -t flag to specify a timeout before exiting, and tests. 2017-03-07 22:16:55 +00:00
tests Fix back-to-back runs of sys/netinet/fibs_test;slaac_on_nondefault_fib6 2017-03-20 23:07:34 +00:00
tools Remove zh_TW.Big5 locale 2017-03-19 17:52:46 +00:00
usr.bin Shut up gcc. 2017-03-21 08:57:20 +00:00
usr.sbin Hide struct inpcb, struct tcpcb from the userland. 2017-03-21 06:39:49 +00:00
.arcconfig
.arclint
COPYRIGHT Bump copyright year. 2016-12-31 12:41:42 +00:00
LOCKS
MAINTAINERS As suggested by several people, note that I prefer to communicate by email. 2017-03-03 20:23:21 +00:00
Makefile Remove pc98 support completely. 2017-01-28 02:22:15 +00:00
Makefile.inc1 Temporary readd GNU diff 2017-03-19 17:19:59 +00:00
Makefile.libcompat Use cross-NM (XNM) in compat32 build 2017-01-27 03:43:18 +00:00
ObsoleteFiles.inc Don't build/install lib/libc/io_test anymore 2017-03-20 03:50:22 +00:00
README
README.md Remove hard line breaks from README.md 2017-03-01 15:39:58 +00:00
UPDATING Temporary readd GNU diff 2017-03-19 17:19:59 +00:00

FreeBSD Source:

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.

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