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Andrew Turner 256c5d705a Don't overflow the trap frame when accessing lr or xzr.
When emulating a load pair or store pair in dtrace on arm64 we need to
copy the data between the stack and trap frame. When the registers are
either the link register or the zero register we will access memory
past the end of the trap frame as these are encoded as registers 30 and
31 respectively while the array they access only has 30 entries.

Fix this by creating 2 helper functions to perform the operation with
special cases for these registers.

Sponsored by:	Innovate UK
2020-07-17 14:39:07 +00:00
bin Update to D25266, bin/ps: Make the rtprio option actually show 2020-07-14 18:57:31 +00:00
cddl zpool-features(7): Note that the boot loader has support for large_blocks 2020-07-15 14:38:15 +00:00
contrib Merge sendmail 8.16.1 to HEAD: See contrib/sendmail/RELEASE_NOTES for details 2020-07-15 18:28:54 +00:00
crypto openssh: refer to OpenSSL not SSLeay, part 2 2020-07-15 18:49:00 +00:00
etc Merge sendmail 8.16.1 to HEAD: See contrib/sendmail/RELEASE_NOTES for details 2020-07-15 18:28:54 +00:00
gnu Remove now-unused GNU as build infrastructure 2020-06-07 13:53:23 +00:00
include Make CLOCK_REALTIME and TIMER_ABSTIME available for XOPEN_SOURCE >= 500. 2020-07-14 20:23:27 +00:00
kerberos5 Update Makefile.depend files 2019-12-11 17:37:53 +00:00
lib Include ABI note tag in shared libraries. 2020-07-16 21:58:43 +00:00
libexec Include FreeBSD ABI tag note in the ELF runtime loader. 2020-07-16 22:01:01 +00:00
release Enable EFI system partition on amd64 and i386 VM images 2020-07-14 18:02:24 +00:00
rescue rescue: Remove useless linking with libl 2020-03-24 07:08:02 +00:00
sbin Remove old devd rules for ActiveWire and Entrega Serial DB25 2020-07-16 14:04:29 +00:00
secure Replace OPENSSL_NO_SSL3_METHODs with dummies 2020-07-01 00:59:28 +00:00
share Promote use of unprivileged users for building ports by documenting SU_CMD. 2020-07-17 06:33:20 +00:00
stand Really fix cleandir after r362973 2020-07-14 21:15:16 +00:00
sys Don't overflow the trap frame when accessing lr or xzr. 2020-07-17 14:39:07 +00:00
targets Add WITH_CLANG_FORMAT option 2020-06-24 17:03:42 +00:00
tests Add safexcel(4) to cryptotest. 2020-07-14 14:11:54 +00:00
tools add script to help figure out what man pages need MLINKS updated... 2020-07-16 23:05:18 +00:00
usr.bin Allow install(1)'s create_tempfile() to work on Linux hosts 2020-07-15 17:24:39 +00:00
usr.sbin efibootmgr: typo in long option name 2020-07-16 10:20:35 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.cirrus.yml Cirrus-CI: increase timeout to 120m 2020-02-19 15:56:40 +00:00
.clang-format Clang-format: Avoid hardcoded LLVM include-order style 2020-06-24 23:22:36 +00:00
.gitattributes Add a basic clang-format configuration file 2019-06-07 15:23:52 +00:00
.gitignore .gitignore: Add LINT kernel configurations generated into SRCDIR 2019-08-10 18:22:22 +00:00
COPYRIGHT Happy New Year 2020! 2019-12-31 16:01:36 +00:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Update bhyve maintainers. 2020-06-26 06:11:50 +00:00
Makefile Use universe-toolchain config(8) 2020-04-29 02:18:39 +00:00
Makefile.inc1 Add WITH_CLANG_FORMAT option 2020-06-24 17:03:42 +00:00
Makefile.libcompat Stop building libl and liby 2020-03-26 08:23:09 +00:00
Makefile.sys.inc AUTO_OBJ: For all top-level targets enforce using an OBJDIR. 2017-12-05 21:29:47 +00:00
ObsoleteFiles.inc Remove obsolete files after byacc 20200330 import (r363171). 2020-07-15 00:13:15 +00:00
README README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
README.md README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
RELNOTES Add a RELNOTES entry for r363253. 2020-07-16 15:12:52 +00:00
UPDATING Add a note regarding the introduction of the new bc and dc implementations 2020-07-05 14:43:14 +00:00

FreeBSD Source:

This is the top level of the FreeBSD source directory. This file was last revised on: FreeBSD

FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.

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), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.

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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.
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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.

stand		Boot loader sources.

sys		Kernel sources.

sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
		used in release builds. NOTES contains documentation of
		all possible entries.

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.

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