src/lib/libpthread/thread/thr_fork.c, branch releng/12.4FreeBSD source treehttps://cgit-dev.freebsd.org/src/atom?h=releng%2F12.42007-10-09T14:16:39ZRepo copy libpthreads to libkse.2007-10-09T14:16:39ZDavid E. O'Brienobrien@FreeBSD.org2007-10-09T14:16:39Zurn:sha1:aaffe2b157f65a534c955edb61c88aa1b764266d
This introduces the WITHOUT_LIBKSE nob,
and changes WITHOUT_LIBPTHREADS to mean with neither threading libs.
Approved by: re(kensmith)
Remove 3rd clause, renumber, ok per email2007-01-12T07:26:21ZWarner Loshimp@FreeBSD.org2007-01-12T07:26:21Zurn:sha1:fed32d75449d7d05afdd7ddb7703bfa69a3027f3Add compatibility symbol maps. libpthread (.so.1 and .so.2)2006-03-13T00:59:51ZDaniel Eischendeischen@FreeBSD.org2006-03-13T00:59:51Zurn:sha1:e62165c8b0f7d6452c0033127a0fd8ad1d9e34d3
used LIBTHREAD_1_0 as its version definition, but now needs
to define its symbols in the same namespace used by libc.
The compatibility hooks allows you to use libraries and
binaries built and linked to libpthread before libc was
built with symbol versioning. The shims can be removed if
libpthread is given a version bump.
Reviewed by: davidxu
In preparation for a new malloc implementation:2006-01-12T07:28:21ZJason Evansjasone@FreeBSD.org2006-01-12T07:28:21Zurn:sha1:52828c0e9cfdf1681a8c16cf313294ad1413ac25
* Add posix_memalign().
* Move calloc() from calloc.c to malloc.c. Add a calloc() implementation in
rtld-elf in order to make the loader happy (even though calloc() isn't
used in rtld-elf).
* Add _malloc_prefork() and _malloc_postfork(), and use them instead of
directly manipulating __malloc_lock.
Approved by: phk, markm (mentor)
Use a generic way to back threads out of wait queues when handling2004-12-18T18:07:37ZDaniel Eischendeischen@FreeBSD.org2004-12-18T18:07:37Zurn:sha1:843d4004b367db61428fa1cbf611cdbd2791d672
signals instead of having more intricate knowledge of thread state
within signal handling.
Simplify signal code because of above (by David Xu).
Use macros for libpthread usage of pthread_cleanup_push() and
pthread_cleanup_pop(). This removes some instances of malloc()
and free() from the semaphore and pthread_once() implementations.
When single threaded and forking(), make sure that the current
thread's signal mask is inherited by the forked thread.
Use private mutexes for libc and libpthread. Signals are
deferred while threads hold private mutexes. This fix also
breaks www/linuxpluginwrapper; a patch that fixes it is at
http://people.freebsd.org/~deischen/kse/linuxpluginwrapper.diff
Fix race condition in condition variables where handling a
signal (pthread_kill() or kill()) may not see a wakeup
(pthread_cond_signal() or pthread_cond_broadcast()).
In collaboration with: davidxu
Don't declare the malloc lock; use the declaration provided in libc.2003-11-05T18:18:45ZDaniel Eischendeischen@FreeBSD.org2003-11-05T18:18:45Zurn:sha1:94db4dd759dc22f1927f945a3611281d99ebbdf4
Noticed by: bde
Add an implementation for pthread_atfork().2003-11-04T20:04:45ZDaniel Eischendeischen@FreeBSD.org2003-11-04T20:04:45Zurn:sha1:4c1123c1c023bff3a413efecc581d1508a7d211c
Aside from the POSIX requirements for pthread_atfork(), when
fork()ing, take the malloc lock to keep malloc state consistent
in the child.
Reviewed by: davidxu
Save and restore errno around sigprocmask.2003-08-19T03:33:51ZDavid Xudavidxu@FreeBSD.org2003-08-19T03:33:51Zurn:sha1:6705464db0fefe9befeb9061e80bf77cb1a54bedIf thread mode is not activated yet, just call __sys_fork() directly,2003-08-10T22:20:41ZDavid Xudavidxu@FreeBSD.org2003-08-10T22:20:41Zurn:sha1:7292e8d1744d0d074d96ac83085dbaec3871e311
otherwise masks all signals until fork() returns, in child process,
we reset library state before restoring signal masks until we reach
a safe to point.
Reviewed by: deischen
Revamp libpthread so that it has a chance of working in an SMP2003-04-18T05:04:16ZDaniel Eischendeischen@FreeBSD.org2003-04-18T05:04:16Zurn:sha1:a0240e2cb0b1ef8e5b61930ac2b850c884daaba8
environment. This includes support for multiple KSEs and KSEGs.
The ability to create more than 1 KSE via pthread_setconcurrency()
is in the works as well as support for PTHREAD_SCOPE_SYSTEM threads.
Those should come shortly.
There are still some known issues which davidxu and I are working
on, but it'll make it easier for us by committing what we have.
This library now passes all of the ACE tests that libc_r passes
with the exception of one. It also seems to work OK with KDE
including konqueror, kwrite, etc. I haven't been able to get
mozilla to run due to lack of java plugin, so I'd be interested
to see how it works with that.
Reviewed by: davidxu