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Dimitry Andric 9097e3cbca Partially revert libcxxrt changes to avoid _Unwind_Exception change 
(Note I am also applying this to main and stable/13, to restore the old
libcxxrt ABI and to avoid having to maintain a compat library.)

After the recent cherry-picking of libcxxrt commits 0ee0dbfb0d and
d2b3fadf2d, users reported that editors/libreoffice packages from the
official package builders did not start anymore. It turns out that the
combination of these commits subtly changes the ABI, requiring all
applications that depend on internal details of struct _Unwind_Exception
(available via unwind-arm.h and unwind-itanium.h) to be recompiled.

However, the FreeBSD package builders always use -RELEASE jails, so
these still use the old declaration of struct _Unwind_Exception, which
is not entirely compatible. In particular, LibreOffice uses this struct
in its internal "uno bridge" component, where it attempts to setup its
own exception handling mechanism.

To fix this incompatibility, go back to the old declarations of struct
_Unwind_Exception, and restore the __LP64__ specific workaround we had
in place before (which was to cope with yet another, older ABI bug).

Effectively, this reverts upstream libcxxrt commits 88bdf6b290da
("Specify double-word alignment for ARM unwind") and b96169641f79
("Updated Itanium unwind"), and reapplies our commit 3c4fd2463b
("libcxxrt: add padding in __cxa_allocate_* to fix alignment").

PR:		253840
2021-03-13 14:54:24 +01:00
.github/workflows GitHub actions: unbreak macOS build 2021-01-08 15:36:38 +01:00
bin bin/pkill: Fix {pgrep,pkill}-j_test.sh 2021-02-13 13:53:51 +00:00
cddl openzfs: attach pam_zfs_key to build 2021-03-02 07:26:59 -05:00
contrib Partially revert libcxxrt changes to avoid _Unwind_Exception change 2021-03-13 14:54:24 +01:00
crypto openssh: document two changes that are now upstream 2021-02-22 14:03:28 -05:00
etc Restore /boot/efi to mtree. 2021-03-05 21:01:11 -05:00
gnu dialog: fix macro redefinition 2021-03-01 16:01:44 +01:00
include Remove xform_poly1305.h from the build, it is not necessary. 2021-03-05 21:28:10 +00:00
kerberos5 kerberos5: fix the WITH_OPENLDAP build 2021-01-30 00:07:50 -06:00
lib lib/msun: Fix x86 GCC6 build after 221622ec0c 2021-03-12 18:44:44 +00:00
libexec Fix post-start check when unbound.conf has moved. 2021-03-10 15:53:25 +00:00
release release: Move the vagrant.vmx config out to its own file to match vbox 2021-03-12 09:44:42 -07:00
rescue ping: add a ping6 hard link for backwards compatibility 2020-11-26 18:33:04 +00:00
sbin Do not complain about incorrect cylinder group check-hashes when 2021-03-11 22:46:15 -08:00
secure OpenSSL: Regen manual page for the previous commit 2021-02-17 18:19:13 -05:00
share Document that uma_zfree_pcpu() allows NULL now 2021-03-12 12:12:35 +01:00
stand loader: cursor off should restore display content 2021-03-06 12:23:54 +02:00
sys zfs: bring back possibility to rewind the checkpoint from 2021-03-13 12:56:17 +01:00
targets ndis(4): remove as previous announced 2021-01-25 21:45:03 +00:00
tests tests/sys/netgraph/ng_macfilter_test: Fix invalid TAP output 2021-03-12 17:35:26 +00:00
tools stress2: open(2) tests with BENEATH flags. 2021-03-08 09:19:37 +01:00
usr.bin Improve the wording for showing the brightness level 2021-03-12 09:45:14 -07:00
usr.sbin autofs: best effort to maintain mounttab and mountdtab 2021-03-12 06:41:55 -09:00
.arcconfig arcconfig: add callsign again 2020-11-23 04:39:29 +00:00
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.cirrus.yml Cirrus-CI: Add more information to help track down disk full issues 2021-03-03 11:51:08 -05:00
.clang-format clang-format: Avoid breaking after the opening paren of function definitions 2020-10-28 11:54:00 +00:00
.gitattributes Add a basic clang-format configuration file 2019-06-07 15:23:52 +00:00
.gitignore gitignore: expand list of ignored files 2021-01-14 17:03:57 +01:00
COPYRIGHT copyrights: Happy New Year 2021 2020-12-31 10:29:44 -05:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Add a pointer to csprng@ for the CSPRNG driver. This is enforced anyway by 2020-09-01 08:02:12 +00:00
Makefile Fix 'make bmake' top-level bootstrapping. 2021-03-06 09:45:08 -08:00
Makefile.inc1 Makefile.inc1 "Avoid duplicate script for target" warning 2021-03-01 13:22:15 +00:00
Makefile.libcompat libcompat: remove redundant path for ncurses 2021-01-07 15:14:52 +01:00
Makefile.sys.inc AUTO_OBJ: For all top-level targets enforce using an OBJDIR. 2017-12-05 21:29:47 +00:00
ObsoleteFiles.inc Add ObsoleteFiles.inc entries for various OCF headers removed in 13. 2021-03-08 11:17:21 -08:00
README.md Whitespace cleanup 2021-03-12 19:57:58 +08:00
RELNOTES Bump CURRENT to 14.0 2021-01-21 19:10:07 -05:00
UPDATING Add UPDATING entry for PIE default 2021-02-25 11:02:09 -05:00

README.md

FreeBSD Source:

This is the top level of the FreeBSD source directory.

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), FreeBSD handbook on building userland, and Handbook for kernels for more information, including setting make(1) variables.

Source Roadmap:

Directory Description
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 and gnu/COPYING.LIB 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.
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.

For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see FreeBSD Handbook.