Re-apply the -S switch to disable soft-updates in memory disks (commit
8b1292ac52). This might be beneficial when tmpfs(5) is not present in
the kernel, as this can cause mdmfs(8)'s auto keyword to fallback to
using md(4).
PR: 85558
MFC after: 1 week
Reviewed by: imp, emaste, brooks
Differential Revision: https://reviews.freebsd.org/D43242
(cherry picked from commit bb4116576f2edf466ada3885cf851599ce7a4792)
Accept either little-endian or big-endian representation of the ELF
hints magic number in the header of a hints file and convert the
parameters to the native byte-order of the repsective system.
This is a pre-requisite for a planned change to always write the byte
order in little-endian format on all architectures. The only relvant
architecture that uses big-endian data is powerpc64, and it is not
likely that new architectures will choose that representation of data
in memory.
When all supported architectures use little-endian data in the hints
file, the byte swap logic can be enabled for big-endian CPUs at
compile time. Up to that point, there is a very small run-time penalty
that is paid on all systems to check the byte-order of the hints file
and to provide the option to byte-swap the parameters read from the
hints file header.
This commit contains the changes from review D44080 (which had been
split off from this patch for easier review),
Reviewed by: kib
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D44053
(cherry picked from commit 7b77d37a561b47db093a2528b8032dbfe5791698)
rtld-elf: add some debug print statements
The byte-order independent code has been reported to fail on powerpc64.
Add some more debug statements to help identify the parametrs used and
to verify the correct operation of the byte-swap macros used..
(cherry picked from commit 173953182af060dcab43990e179ee91e9f2d1e54)
rtld: fix check for endianess of elf hints file
Don't check if the elf hints file is in host byte order, but check
if it is in little endian by looking at the magic number.
This fixes rtld on big endian platforms.
Reviewed by: se, kib (prior version of the patch)
Fixes: 7b77d37a561b ("rtld-elf: support either byte-order of hints")
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D44472
(cherry picked from commit da2d6e2815d7694e3ccbd561508074c547b02dd6)
rtld: reduce debug messages after fix on big-endian hosts
Remove a debug message that had been added to support the debugging
of a mis-detection of the hint files endianness on powerpc64.
MFC after: 3 days
(cherry picked from commit c44bf7d2e9d2292867f2e23f291266af26762354)
dlopen_basic just tests that libthr.so can be dlopen()ed, which will
just serve as a sanity check that "libthr.so" is a thing that can be
dlopened in case we get a weird failure in dlopen_recursing.
dlopen_recursing tests a regression reported after the libsys split,
where some dlopen() may cause infinite recursion and a resulting crash.
This case is inspired by bdrewery's description of what seemed to be
causing his issue.
The corresponding fix landed in commit
968a18975ad ("rtld: ignore load_filtees() calls if we already [...]")
Reviewed by: kib
(cherry picked from commit c5796f1572c82b88e8b6a2810c92f30e5ac3e118)
Add the Branch Target Identification (BTI) note to libc assembly
sources. As all obect files need the note for rtld to have it we need
to insert it in all asm files.
Reviewed by: markj, emaste
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D42228
(cherry picked from commit 5270cc9757fb4e0c1303ec44c2602b75acf3806d)
In order to atomically upgrade the rtld bind lock, load_filtees() may
trigger a longjmp back to _rtld_bind() so that the binding can be done
with the write lock held. However, the write lock is only needed when
filtee objects haven't already been loaded, so move the
lock_restart_for_upgrade() call to avoid unnecessary lock upgrades when
a filtee is defined.
Reviewed by: kib
Tested by: brooks
MFC after: 1 week
Sponsored by: Innovate UK
(cherry picked from commit e7951d0b04e6464b37264b8166b1e9ce368a9f1d)
Add a python script which implements the bulk of this functionality.
Over time, this would ideally evolve into a library of python routines
which can be used to inspect kernel data structures and automate some
debugging tasks, similar to jhb's out-of-tree scripts, but written in a
somewhat nicer language and with better integration into the kgdb
command prompt.
Note that kgdb currently won't auto-load scripts in this directory.
This should perhaps change in the future. It probably also makes more
sense to have a crashinfo.py which provides all the kgdb output that we
want to include in core.txt, rather than having crashinfo.sh pipe in
several commands.
Reviewed by: avg, imp
Discussed with: jhb
MFC after: 3 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33817
(cherry picked from commit 2524b7dfb0df7e37ea9651559ce6c027b006e2a9)
IERS is the source of truth for leap seconds. Their leapsecond file is
updated most quickly and is always right (unlike the IANA one which
often lags). IERS operates this public service for the express purpose
of random people downloading it. Their terms of service are compatible
with open source (we could include this in our release). Rather than
fighting with questions around this because the IANA one changed
locations or the auto update script broken, just use this.
This is in preference to the NIST ftp copy. NIST is in the process of
retiring their FTP services.
Sponsored by: Netflix
Reviewed by: philip, delphij, cy
Differential Revision: https://reviews.freebsd.org/D43752
(cherry picked from commit 11da791920ba285f0832f09cb504ac81e35ff8d1)
Some users wishing to use the MIT krb5kdc have discovered the
kdc script workaround applied to the MIT krb5 ports is insufficient.
Let's build into this rc script the smarts to determine whether
base or ports Hiemdal kdc is being invoked or the MIT krb5kdc.
While at it, remove kdc_start_precmd(). This will simplify a future
jail patch.
Suggested by: netchild
Original patch: netchild
Reviewed by: emaste, netchild
Differential Revision: https://reviews.freebsd.org/D43523
(cherry picked from commit 91f78c32befa08bf4010db7afd4407277a3e585f)
Upstream is now https://github.com/zoulasc/blocklist/. Rename the
contrib directory and update Makefiles to match, in advance of the next
vendor branch update.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 5f4c09dd85bff675e0ca63c55ea3c517e0fddfcc)
This was originally used (along with FREEBSD_AOUT) to prefer the use
of ELF in various tools instead of a.out as part of the a.out to ELF
transition in the 3.x days. The last use of it was removed from
<link.h> in commit 66422f5b7a back in
2002, but various files still #define it.
Reviewed by: kevans, imp, emaste
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D42964
(cherry picked from commit 4a3cf5f329d69076aa9d093d596eb0ee82d917f5)
IETF is no longer serving leap-seconds.list. Point at IANA instead.
This fixes "service ntpd fetch".
(cherry picked from commit b1c95af45488bef649e9a84890e2414ff80b3a00)
This tests that with RTLD_DEEPBIND, symbols are looked up in all of the
object's needed objects before the global object.
PR: 275393
Reviewed by: kib
Sponsored by: NetApp, Inc.
Sponsored by: Klara, Inc.
(cherry picked from commit d9c543b6b0cabea6e6679d70b4e701018e7eab80)
These do not use __FBSDID but instead use bare char arrays.
Reviewed by: imp, emaste
Differential Revision: https://reviews.freebsd.org/D41957
(cherry picked from commit eba230afba4932f02a1ca44efc797cf7499a5cb0)
Since 13.1, /etc/rc.d/jail has looked for a per-jail config file in
/etc/jail.conf.d. For RELENG 14, the ".include" directive was added to
jail(8), with a sample line in the jail.conf(5) man page that includes
"/etc/jail.conf.d/*.conf".
These two use cases don't work together. When the jail.conf.d files
are included from a master jail.conf, the files in jail.conf.d are
likely to hold only partial configurations, and shouldn't be directly
loaded by rc.d/jail. But there are existing configurations that depend
on the current rc.d behavior. While users could be advised not to
include from /etc/jail.conf.d, it's the natural choice even if not
mentioned in jail.conf.5.
The workaround is for rc.d/jail to continue to load the individual
files, but only when /etc/jail.conf doesn't include from that
directory (via a simple grep test), This allows the current use
while not breaking the previous use.
Reported by: antranigv at freebsd.am
Differential Revision: https://reviews.freebsd.org/D41962
(cherry picked from commit a2440348eed75bb7682579af0905b652747fd016)
For a service that sets an rcvar, there is a check whether it has been
enabled before the actual command is executed. If the check fails, one
gets a message to enable it and the returned exit status is 0.
However, this is usually undesirable for the status command, which is
a) supposed to check whether the service is running anyway and
b) returns a non-zero exit code if that is not the case.
Thus, skip the check for the status command.
PR: 272282
Reviewed by: emaste
(cherry picked from commit ba793728a840041e93e38bcbff4a7233dc63b722)
Also bump .Dd for the original change.
Reported by: karels
Fixes: 98b98ec1bc7e ("ftpd: add deprecation notice")
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 01d82151022cb1383e83c331708a787f1907b00f)
Approved by: gordon
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D26447
(cherry picked from commit 98b98ec1bc7e961c3d3468b0e481080580c902cf)
Use regular free(), since it works now.
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D41150
It is modelled after aligned_alloc(3). Most importantly, to free the
allocation, __crt_free() can be used. Additionally, caller may specify
offset into the aligned allocation, so that we return offset-ed from
alignment pointer.
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D41150
Reorder it with magic, to keep alignment.
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D41150
for it to be useful to return unaligned pointer.
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D41150
The method might require resolving and binding symbols, which means
recursing on the bind lock. It is safe to unlock the bind lock,
since we operate on the private object list, and user attempting to
unload an object from the list of not yet fully loaded objects caused
self-inflicted race.
It is similar to how we treat user' init/fini methods.
Reported by: stevek
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
9600 was a standard baud rate decades ago, but 115200 is now more common
so choose defaults that are useful to the largest number of users.
Note that boot0sio does not support rates above 9600 so it remains
unchanged.
Reviewed by: bz, imp, manu
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D36295
