Link to https://github.com/rumpkernel/ instead of
a site now taken over by an SEO squatter.
Per discussion on github.com/rumpkernel issues with pooka.
PR misc/57501
by /sbin/{zfs,zpool,mount_zfs}. The general effect is to move them
from /usr/lib to /lib. Compatibility links are installed in /usr/lib
and nothing that is installed, say in /usr/pkg, appears to break.
With this, it is possible to have a /var and /usr mount using ZFS
legacy mounting early on in the boot process.
Run tested on amd64 and i386 and compile tested on evbarm.
with all the libpthread symbols in it.
This makes -lpthread behave like to -Wl,--whole-archive -lpthread.
This avoids a situation where threaded static binaries use some libc thread
stubs, which are racy.
Fixes PR lib/54001: call_once2_32, call_once2_static test cases failing on
amd64 since gcc7 import.
Suggested by Jonathan Wakely, thanks!
C11 Thread support library is a portable threading C API between OSs,
similar to std::threads in the C++ world.
The library is implemented as a thin shim over POSIX interfaces.
NetBSD implements the API as a part of the POSIX threading library
(libpthread(3)).
C11 threads(3) are in the process of making them an integral part
of the POSIX standard. The interface has been implemented in major
OSs and used with stopgap libraries for older versions of them.
C11 threading library is already used (with a stopgap implementation)
in the NetBSD distribution in MESA.
Original implementation by myself from 2016.
ATF tests are new and cover almost all interfaces.
Proposed on tech-userlevel@.
by Andy Doran. Also document the get/set pshared thread calls as not
implemented, and add a skeleton implementation that is disabled.
XXX: document _sched_protect(2).
A concrete result is enabling unpatched libpthread to run on the
rumprun stacks (e.g. Xen and bare metal) with a non-NetBSD scheduler.
Those schedulers hook into the existing _lwp_frobnitz() NetBSD syscall
interfaces (well, "syscall" interfaces in that scenario ;)
More specifically about the change itself:
1) instead of calling _lwp_makecontext() followed by _lwp_create()
and passing the entry point in ucontext_t (MD) through the calls, roll
the calls into pthread__makelwp() and allow alternate implementations
for that MI interface.
2) allow compile-time overriding of __lwp_gettcb_fast() or
__lwp_getprivate_fast, which are inline and leak MD scheduler/thread
details into libpthread
Additionally, two small nits:
I) define LIB=pthread before including mk.conf so that it's possible
to test for LIB==pthread in mk.conf
II) make it possible to leave out pthread_cancelstub.c. This is required
by the current implementation of rumprun-posix (i.e. rumprun on
POSIX hosts) due to symbol collisions. It needs to be fixed properly
some day, but for now allows an almost-correct libpthread to run.
I am sure @justin will be happy to explain the details ;)
no change to NetBSD
tested: anita+atf
- Fail if the dlopened libpthread does pthread_create(). From manu@
- Discussed at length in the mailing lists; approved by core@
- This was chosen as the least intrusive patch that will provide
the necessary functionality.
XXX: pullup to 6
objects, and the RTLD_NODELETE and RTLD_NOLOAD flags to dlopen(3).
Mark libpthread as DF_1_NOOPEN and use it to test the functionality.
Somewhat taken from FreeBSD.
Fixes PR 42029.
OK from christos and joerg.
- pthread_barrier_{init,destroy,wait} into pthread_barrier(3).
- pthread_cond_* into pthread_cond(3).
- pthread_mutex_* into pthread_mutex(3).
- pthread_rwlock_* into pthread_rwlock(3).
- pthread_spin_* into pthread_spin(3).
Cross-link amongst groups.
OK jruoho@
document pthread_attr_getstack() and pthread_attr_setstack(). Try to also
document these a little better (in particular, note some items in the long
list of caveats and questions related to application-controlled thread stack).
Builds a libpthread that can be dropped into a NetBSD 2/3/4 chroot.
This makes threading work in the chroot when using a NetBSD 5 kernel, no
other modifications required.
pthread_setaffinity_np(3) and pthread_getaffinity_np(3) functions,
provides simple code example.
- Add cpuset(3) manual page, which describes API of CPU-sets.
Thanks <wiz> for many improvements!
Add schedctl(8) - a program to control scheduling of processes and threads.
Notes:
- This is supported only by SCHED_M2;
- Migration of LWP mechanism will be revisited;
Proposed on: <tech-kern>. Reviewed by: <ad>.
rin