Introducing libutil.h causes grief later because hexdump(3) in FreeBSD
and contrib/netbsd-tests/lib/libc/db/h_hash.c conflict.
I'm working adapting h_hash.c, but for now, unbreak the build in the
easiest way possible.
FreeBSD has pthread_np.h, which is used for consolidating all non-POSIX
functions, but NetBSD doesn't have this concept. Make _np functions work
seamlessly when ported from NetBSD to FreeBSD
sources to return timestamps when SO_TIMESTAMP is enabled. Two additional
clock sources are:
o nanosecond resolution realtime clock (equivalent of CLOCK_REALTIME);
o nanosecond resolution monotonic clock (equivalent of CLOCK_MONOTONIC).
In addition to this, this option provides unified interface to get bintime
(equivalent of using SO_BINTIME), except it also supported with IPv6 where
SO_BINTIME has never been supported. The long term plan is to depreciate
SO_BINTIME and move everything to using SO_TS_CLOCK.
Idea for this enhancement has been briefly discussed on the Net session
during dev summit in Ottawa last June and the general input was positive.
This change is believed to benefit network benchmarks/profiling as well
as other scenarios where precise time of arrival measurement is necessary.
There are two regression test cases as part of this commit: one extends unix
domain test code (unix_cmsg) to test new SCM_XXX types and another one
implementis totally new test case which exchanges UDP packets between two
processes using both conventional methods (i.e. calling clock_gettime(2)
before recv(2) and after send(2)), as well as using setsockopt()+recv() in
receive path. The resulting delays are checked for sanity for all supported
clock types.
Reviewed by: adrian, gnn
Differential Revision: https://reviews.freebsd.org/D9171
- stdio.h needs to pull in stdio.h/util.h for fparseln, not util.h
- util.h needs to #include sys/types.h for flags_to_string, etc as
flags_to_string uses u_long, which is typedef'ed in sys/types.h on
FreeBSD
of the clang version
This works around breakage on ^/stable/10 when running installworld from
a ^/stable/10 host where the test wouldn't be compiled on the first
go-around and would be missing when make installworld is run.
MFC after: 1 week
PR: 208703
Reported by: emaste
Sponsored by: Dell EMC Isilon
The previous code used to grab definitions from these openssl/openssh,
but this is no longer needed and is no longer correct. libnetbsd
provides all of the needed definitions
libnetbsd is added to CFLAGS automatically via netbsd-tests.test.mk --
hence all of CFLAGS can be cleared
This contains some new testcases in /usr/tests/...:
- .../lib/libc
- .../lib/libthr
- .../lib/msun
- .../sys/kern
Tested on: amd64, i386
MFC after: 1 month
drain timeout handling to historical freebsd behavior.
The primary reason for these changes is the need to have tty_drain() call
ttydevsw_busy() at some reasonable sub-second rate, to poll hardware that
doesn't signal an interrupt when the transmit shift register becomes empty
(which includes virtually all USB serial hardware). Such hardware hangs
in a ttyout wait, because it never gets an opportunity to trigger a wakeup
from the sleep in tty_drain() by calling ttydisc_getc() again, after
handing the last of the buffered data to the hardware.
While researching the history of changes to tty_drain() I stumbled across
some email describing the historical BSD behavior of tcdrain() and close()
on serial ports, and the ability of comcontrol(1) to control timeout
behavior. Using that and some advice from Bruce Evans as a guide, I've
put together these changes to implement the hardware polling and restore
the historical timeout behaviors...
- tty_drain() now calls ttydevsw_busy() in a loop at 10 Hz to accomodate
hardware that requires polling for busy state.
- The "new historical" behavior for draining during close(2) is retained:
the drain timeout is "1 second without making any progress". When the
1-second timeout expires, if the count of bytes remaining in the tty
layer buffer is smaller than last time, the timeout is extended for
another second. Unfortunately, the same logic cannot be extended all
the way down to the hardware, because the interface to that layer is a
simple busy/not-busy indication.
- Due to the previous point, an application that needs a guarantee that
all data has been transmitted must use TIOCDRAIN/tcdrain(3) before
calling close(2).
- The historical behavior of honoring the drainwait setting for TIOCDRAIN
(used by tcdrain(3)) is restored.
- The historical kern.drainwait sysctl to control the global default
drainwait time is restored, but is now named kern.tty_drainwait.
- The historical default drainwait timeout of 300 seconds is restored.
- Handling of TIOCGDRAINWAIT and TIOCSDRAINWAIT ioctls is restored
(this also makes the comcontrol(1) drainwait verb work again).
- Manpages are updated to document these behaviors.
Reviewed by: bde (prior version)
This makes the versions inheritance consistent for our versioned libraries.
Extracted from: ino64
Discussed with: kan
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Nowadays it's not necessary to compute network mask from the IP address and
compare to given by DHCP.
Submitted by: kczekirda
Reviewed by: glebius, bapt
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D8740
libstdc++ before gcc r244057 expected that libc provided
__cxa_thread_atexit_impl, and libstdc++ implemented
__cxa_thread_atexit, by forwarding the calls to _impl. Mentioned gcc
revision checks for __cxa_thread_atexit in libc and does not provide
the symbol from libstdc++ if found.
This change helps older gcc, in particular, all released versions
which implement thread_local, by consolidating the implementation into
libc. For that versions, if configured with the current libc, the
__cxa_thread_atexit is exported from libstdc++ as a trivial wrapper
around libc::__cxa_thread_atexit_impl.
The __cxa_thread_atexit implementation is put into separate source
file to allow for static linking with older libstdc++.a.
gcc bugzilla: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78968
Reported by: Hannes Hauswedell <h2+fbsdports@fsfe.org>
PR: 215709
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
This is preparation work for 11ac support. The regulatory database
needs to know about VHT channel flags and 80MHz (and later 160MHz)
available channel bands.
Whilst here, add the 2GHz VHT band (which is a terrible, terrible vendor
extension that almost all vendors do) just in preparation, even though
I don't (yet) plan on supporting it.
the mapping which might be accessed by other threads.
If a pointer to the /dev/hpet register page mapping was stored into
the hpet_dev_map, other threads might access the page at any time.
Never unmap it, instead, keep track of mappings for all hpet units in
smal array. Store pointer to the newly mapped registers page using
CAS, to detect parallel mappings.
It appeared relatively easy to demonstrate the problem by arranging
two threads which perform gettimeofday(2) concurently, first time in
the process address space, when HPET is used for timecounter.
PR: 215715
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
party software, this provides more standarized import workflow and
makes future upgrades easier.
The following files are new with this commit:
zconf.h.in
zlib.map
zlib.pc.in
They are not connected to build, but were kept in tree for reference
for future maintenance.
All our local trivial changes were applied to contrib/zlib, and the
contrib/zlib vendor source code is intended to 100% match lib/libz
before this commit.
MFC after: 2 weeks
As a followup to r310638, update libsysdecode (and kdump) to decode the
'mode' argument to getfsstat(). sysdecode_getfsstat_flags() has been
renamed to sysdecode_getfsstat_mode() and now treats the argument as an
enumerated value rather than a mask of flags.
