src-test2/lib/libpthread/sys, branch release/6.4.0_cvs FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F6.4.0_cvs 2008-11-26T01:09:48Z Copy releng/6.4 to release/6.4.0 in preparation for 6.4-RELEASE. 2008-11-26T01:09:48Z Ken Smith kensmith@FreeBSD.org 2008-11-26T01:09:48Z urn:sha1:a93332491e10c1a23a9fd2f11ccbdba33d72d850 Approved by: re (implicit) This commit was manufactured to restore the state of the 6.4-RELEASE image. MFC changes from 1.14 for sys/lock.c and 1.127+1.128 for thread/thr_kern.c 2008-02-04T20:05:20Z Julian Elischer julian@FreeBSD.org 2008-02-04T20:05:20Z urn:sha1:1191d3e7a09d5c3943048cfbcd7db215dfcd748f this copes with the fact that during a fork the child may get really screwy state in the threading system due to the sudden vaporisation of it's sibling threads. MFC: Convert the atomic pointer operations to operate on uintptr_t rather 2005-08-05T19:44:00Z John Baldwin jhb@FreeBSD.org 2005-08-05T19:44:00Z urn:sha1:95b1c1e157778c489ab6051ab991c831c38bd863 than void *. Approved by: re (kensmith) Change the spin lock logic to a reasonable one. We should spin when 2005-02-27T17:45:55Z Xin LI delphij@FreeBSD.org 2005-02-27T17:45:55Z urn:sha1:12927a851366fd52e494fc656c96574af18fc46e the lock is held by other thread, but not when nobody owns it. According to deischen@, this part of code will never be hit in our threads library, since it does not use locks without wait/wakeup functions. Spotted by: mingyanguo via ChinaUnix.net forum Reviewed by: deischen Use a generic way to back threads out of wait queues when handling 2004-12-18T18:07:37Z Daniel Eischen deischen@FreeBSD.org 2004-12-18T18:07:37Z urn: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 Add the ability to reinitialize libpthread's internal FIFO-queueing 2003-11-04T20:01:38Z Daniel Eischen deischen@FreeBSD.org 2003-11-04T20:01:38Z urn:sha1:d6b826bac7cba8bd901ca2db952bb1dc514ca79f locks. Reviewed by: davidxu Only generate code for _LCK_ASSERT if _LCK_DEBUG is defined. 2003-10-02T03:24:26Z David Xu davidxu@FreeBSD.org 2003-10-02T03:24:26Z urn:sha1:28e2ce478d04a60f22169aedfce85d93c1ed3328 Don't assume sizeof(long) = sizeof(int) on x86; use int 2003-09-03T17:56:26Z Daniel Eischen deischen@FreeBSD.org 2003-09-03T17:56:26Z urn:sha1:850108c0b4ef4545310af9b03c4a8531b8b36d55 instead of long types for low-level locks. Add prototypes for some internal libc functions that are wrapped by the library as cancellation points. Add memory barriers to alpha atomic swap functions (submitted by davidxu). Requested by: bde Move the machine specific files from sys/Makefile.inc and put them 2003-06-23T04:28:31Z Marcel Moolenaar marcel@FreeBSD.org 2003-06-23T04:28:31Z urn:sha1:842728619a412d2ce3a8c4c5ba4ac60a9a77726c in a machine specific makefile. While here, sort the sub-directories in Makefile and remove _atomic_lock.S from all makefiles. Attempt to eliminate PLT relocations from rwlock aquire/release 2003-05-30T00:21:52Z Alexander Kabaev kan@FreeBSD.org 2003-05-30T00:21:52Z urn:sha1:84d55c7fad83f4fa1330cc8c2206da8ebd0b300d path, making them suitable for direct use by the dynamic loader. Register libpthread-specific locking API with rtld on startup. This still has some rough edges with signals which should be addresses later. Approved by: re (scottl)