2001-04-24 Andreas Jaeger * wrapsyscall.c: send* and recv* return ssize_t. * sysdeps/pthread/timer_getoverr.c (timer_getoverrun): Unlock the mutex instead of double locking it. Reported by Pierre Artaud . 2001-04-23 Ulrich Drepper * sysdeps/pthread/getcpuclockid.c: Make function generic, test using #ifdef whether the clock is available. * sysdeps/unix/sysv/linux/i386/getcpuclockid.c: Removed. * sysdeps/ia64/Versions: New file. * sysdeps/unix/sysv/linux/ia64/pt-initfini.c (_init): We don't have to call __gmon_start__ in the libpthread DSO. * sysdeps/pthread/pt-initfini.c (_init): Likewise. * Makefile (libpthread-routines): Add ptclock_gettime and ptclock_settime. * internals.h: Don't use cpuclock-init.h definitions, use hp-timing.h definitions. * pthread.c: Likewise. * manager.c: Likewise. * ptclock_gettime.c: New file. * ptclock_settime.c: New file. * internals.h: Fix parameter type for __pthread_clock_gettime and __pthread_clock_settime. * sysdeps/i386/i586/ptclock_gettime.c: Removed. * sysdeps/i386/i586/ptclock_settime.c: Removed. * sysdeps/i386/i586/Makefile: Removed. 2001-04-22 Ulrich Drepper * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_ASYNCH_IO. * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. 2001-04-21 Andreas Jaeger * sysdeps/pthread/timer_routines.c (thread_func): Add noreturn attribute, remove statements that will never be executed. (thread_func): Remove mutex_unlock call since it's never executed. (thread_func): Fix comment as suggested by Jakub Jelinek. * manager.c (__pthread_manager): Add noreturn attribute. (pthread_start_thread): Likewise, remove return statement. (pthread_start_thread_event): Likewise. Add noreturn attribute for pthread_handle_exit. * weaks.c: Add noreturn attribute for pthread_exit. * internals.h: Add __pthread_clock_gettime and __pthread_clock_settime prototypes. 2001-04-21 Ulrich Drepper * internals.h: Include . (struct _pthread_descr_struct): Add p_cpuclock_offset field if CPUCLOCK_VARDEF is defined. * pthread.c (__pthread_initialize_minimal): Initialize p_cpuclock_offset field for main thread if CPUCLOCK_INIT is defined. * manager.c (pthread_start_thread): Set p_cpuclock_offset field for new thread to current CPU clock value. * sysdeps/i386/useldt.h: Extend all the macros to handle 8-byte values. * sysdeps/i386/i586/Makefile: New file. * sysdeps/i386/i586/Versions: New file. * sysdeps/i386/i586/ptclock_gettime.c: New file. * sysdeps/i386/i586/ptclock_settime.c: New file. * sysdeps/i386/i686/Implies: New file. 2001-04-18 Jakub Jelinek * sysdeps/unix/sysv/linux/sparc/sparc64/Makefile: Put specs into $generated, not $postclean-generated. 2001-04-18 Andreas Jaeger * Makefile (otherlibs): Added. 2001-04-18 Jakub Jelinek * sysdeps/unix/sysv/linux/sparc/sparc64/Makefile: New file. 2001-04-16 Ulrich Drepper * signals.c (sigwait): NSIG is no signal number. Block all signals while in signal handler for signals in SET. Patch by Manfred Spraul . 2001-04-12 Ulrich Drepper * tst-cancel.c: Disable most tests. Add new test where all cleanup handlers must run. * Makefile (tests): Add tst-cancel again. * cancel.c (__pthread_perform_cleanup): Correct condition for leaving cleanup loop early. * sysdeps/i386/Makefile: Make sure gcc uses a frame pointer for all the files which use CURRENT_STACK_FRAME. * sysdeps/i386/pt-machine.h (CURRENT_STACK_FRAME): Define using __builtin_frame_address. * sysdeps/i386/i686/pt-machine.h: Likewise. 2001-04-11 Ulrich Drepper * Makefile (tests): Comment out tst-cancel for now. * tst-cancel.c (main): Cleanup 4 is supposed to run. Create temporary file in object directory. * Makefile: Don't allow inlining when compiling tst-cancel.c. Pass $(objpfx) to tst-cancel. 2001-04-11 David S. Miller * sysdeps/sparc/sparc32/pt-machine.h (stack_pointer): Advance up closer to user local variables so that new cleanup heuristics work. * sysdeps/sparc/sparc64/pt-machine.h (stack_pointer): Likewise. 2001-04-11 Ulrich Drepper * cancel.c (_pthread_cleanup_push): Catch invalid __prev buffer and remove it. (_pthread_cleanup_push_defer): Likewise. * tst-cancel.c (main): Fix loop printing cleanup output. 2001-04-10 kaz Kojima * sysdeps/sh/pspinlock.c (__pthread_spin_lock): Fix a reverse test. (__pthread_spin_trylock): Likewise. * sysdeps/sh/pt-machine.h (testandset): Likewise. 2001-04-10 Ulrich Drepper * join.c (pthread_exit): Move code to new function __pthread_do_exit which takes an extra parameter with the current frame pointer. Call new function with CURRENT_STACK_FRAME. (__pthread_do_exit): New function. Call __pthread_perform_cleanup with the new parameter. (pthread_join): Call __pthread_do_exit instead of pthread_exit. * cancel.c (__pthread_perform_cleanup): Takes extra parameter. Use this parameter as the initial value the cleanup handler records are compared against. No active cleanup handler record must have an address lower than the previous one and the initial record must be above (below on PA) the frame address passed in. (pthread_setcancelstate): Call __pthread_do_exit instead of pthread_exit. (pthread_setcanceltype): Likewise. (pthread_testcancel): Likewise. (_pthread_cleanup_pop_restore): Likewise. * condvar.c (pthread_cond_wait): Likewise. (pthread_cond_timedwait_relative): Likewise. * manager.c (pthread_start_thread): Likewise. * oldsemaphore.c (__old_sem_wait): Likewise. * pthread.c (pthread_handle_sigcancel): Likewise. * semaphore.c (__new_sem_wait): Likewise. (sem_timedwait): Likewise. * ptlongjmp.c (pthread_cleanup_upto): Also use current stack frame to limit the cleanup handlers which get run. * internals.h: Add prototype for __pthread_do_exit. Adjust prototype for __pthread_perform_cleanup. * Makefile (tests): Add tst-cancel. * tst-cancel.c: New file. 2001-04-08 Hans-Peter Nilsson * sysdeps/cris/pt-machine.h: New file. * sysdeps/cris/pspinlock.c: New file. 2001-04-09 Hans-Peter Nilsson * shlib-versions: Add case for Linux on CRIS. 2001-03-26 Ulrich Drepper * attr.c (pthread_getattr_np): Correct computation of stack size for machiens with register stack. * Examples/ex17.c (main): Correct detection of failed mmap call. 2001-03-21 Jakub Jelinek * pthread.c (__pthread_initialize_manager): Fix a typo. 2001-03-21 Jakub Jelinek * attr.c (__pthread_attr_setstack): Fix alignment check. (pthread_getattr_np): __stackaddr is top of stack, not bottom. * Makefile (tests): Add ex17 test. * Examples/ex17.c: New test. 2001-03-20 Ulrich Drepper * Makefile: Define -D_RPC_THREAD_SAFE_ for cancel.c. * cancel.c (__pthread_perform_cleanup): Call __rpc_thread_destroy. * sysdeps/pthread/bits/libc-tsd.h: Define _LIBC_TSD_KEY_VARS. 2001-03-18 Ulrich Drepper * Makefile: When generating DSO link with libc_nonshared.a. 2001-02-26 Jakub Jelinek * signals.c (pthread_sighandler): Use CALL_SIGHANDLER. 2001-02-23 Jakub Jelinek * internals.h (__pthread_init_max_stacksize): New prototype. * attr.c (__pthread_attr_setstacksize): Call __pthread_init_max_stacksize if not yet initialized. * pthread.c (__pthread_init_max_stacksize): New function. (__pthread_initialize_manager): Call it. Patch by . 2001-03-16 Ulrich Drepper * attr.c (pthread_getattr_np): Fix __stacksize computation for IA-64. 2001-03-13 Martin Schwidefsky * shlib-versions: Add rule for Linux on 64 bit S/390. * sysdeps/s390/s390-64/pt-machine.h: New file. * sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c: New file. 2001-03-13 Martin Schwidefsky * sysdeps/s390/pt-machine.h: Move to... * sysdeps/s390/s390-32/pt-machine.h: ...here. Add defines for FLOATING_STACK and ARCH_STACK_MAX_SIZE. 2001-03-15 Ulrich Drepper * Versions [libpthread] (GLIBC_2.2.3): Add pthread_getattr_np. * attr.c: Implement pthread_getattr_np. * sysdeps/pthread/pthread.h: Add prototype for pthread_getattr_np. * internals.h (struct _pthread_descr_struct): Add p_inheritsched. * manager.c (pthread_handle_create): Initialize p_inheritsched. 2001-03-09 Martin Schwidefsky * sysdeps/unix/sysv/linux/s390/pt-initfini.c: Use 0x07 padding for code alignment. 2001-02-20 Hans Boehm * manager.c (manager_mask): Removed static vesion. Now always local to __pthread_manager(). (manager_mask_all): Removed completely. (__pthread_manager): Remove manager_mask_all initialization. (pthread_handle_create): Remove code to set and reset signal mask around __clone2() calls. 2001-02-17 Jakub Jelinek * spinlock.c (__pthread_lock): Force lock->__status to be read from memory on every spin. 2001-02-10 Andreas Jaeger * Makefile (extra-objs): New. 2001-02-09 Jakub Jelinek * sysdeps/pthread/pt-initfini.c (call_initialize_minimal): Add __pthread_initialize_minimal prototype. 2001-02-08 kaz Kojima * sysdeps/unix/sysv/linux/sh/pt-initfini.c: New file. 2001-02-06 Martin Schwidefsky * sysdeps/unix/sysv/linux/s390/pt-initfini.c: New file. 2001-02-06 Ulrich Drepper * sysdeps/unix/sysv/linux/ia64/pt-initfini.c: First attempt to fix the broken code. Patch by Jes Sorensen. 2001-02-06 Andreas Jaeger * sysdeps/pthread/pthread.h: Move __pthread_initialize from here to... * internals.h: ...here. 2001-02-05 Jes Sorensen * sysdeps/unix/sysv/linux/ia64/pt-initfini.c: New file. 2001-02-02 Ulrich Drepper * Versions: Remove __pthread_initialize_minimal. 2001-02-01 Ulrich Drepper * Makefile: Add rules to build crti.o and make it being used in building libpthread.so. * sysdeps/i386/Makefile: New file. * sysdeps/pthread/pt-initfini.c: New file. * pthread.c: Cleanups. 2001-01-28 Andreas Jaeger * oldsemaphore.c (__old_sem_init): Adjust for last change. * sysdeps/pthread/bits/libc-lock.h: Likewise. * spinlock.c: Likewise. 2001-01-28 Ulrich Drepper * sysdeps/pthread/bits/initspin.h: Make all names namespace clean. * sysdeps/unix/sysv/linux/hppa/bits/initspin.h: Likewise. * manager.c: Adjust for namespace cleanup in bits/initspin.h. * pthread.c: Likewise. * spinlock.h: Likewise. * sysdeps/pthread/pthread.h: Likewise. 2001-01-26 Ulrich Drepper * sysdeps/pthread/bits/pthreadtypes.h: Define pthread_attr_t also as struct __pthread_attr_s. * semaphore.h (sem_t): Cleanup namespace, rename status and spinlock elements. 2001-01-13 Jakub Jelinek * pthread.c (pthread_onexit_process): Clear __pthread_manager_thread_bos after freeing it. * Makefile (tests): Add ex16. * Examples/ex16.c: New file. 2001-01-11 Jakub Jelinek * Makefile (CFLAGS-pthread.c): Pass -DHAVE_Z_NODELETE if ld supports -z nodelete. * pthread.c (pthread_exit_process): Rename to... (pthread_onexit_process): ...this. (pthread_atexit_process, pthread_atexit_retcode): New. (pthread_initialize): Call __cxa_atexit instead of __cxa_on_exit and only if HAVE_Z_NODELETE is not defined. (__pthread_initialize_manager): Register pthread_atexit_retcode with __cxa_atexit. 2001-01-11 Ulrich Drepper * pthread.c (pthread_initialize): Use __cxs_on_exit not __cxa_atexit. 2001-01-11 Jakub Jelinek * Makefile (tests): Add ex15. * Examples/ex15.c: New test. 2001-01-08 Ulrich Drepper * pthread.c (pthread_exit_process): Free memory allocated for manager stack. 2000-12-31 Ulrich Drepper * manager.c (pthread_alloca_stack): Remove MAP_FIXED from mmap calls. (pthread_free): Always unmap the stack. It's safe now that we don't use MAP_FIXED to allocate stacks. 2000-12-31 Ulrich Drepper * sysdeps/powerpc/pspinlock.c: Don't include pt-machine.h here. * manager.c (pthread_allocate_stack): Prepare for removal of MAP_FIXED. 2000-11-15 Wolfram Gloger * manager.c (pthread_free): [!FLOATING_STACKS]: Only remap the stack to PROT_NONE, don't unmap it, avoiding collisions with malloc. 2000-12-27 Andreas Jaeger * Examples/ex13.c: Make local functions static. * ecmutex.c: Likewise. * joinrace.c: Likewise. * Examples/ex14.c: Likewise. * Examples/ex2.c: Make local functions static; reformat. * Examples/ex1.c: Likewise. * Examples/ex4.c: Likewise. * Examples/ex5.c: Likewise. * Examples/ex7.c: Likewise. * oldsemaphore.c: Add prototypes to shut up GCC. * pt-machine.c: Likewise. * weaks.c: Add prototype for pthread_exit. * internals.h: Add some prototypes, format prototypes and add missing externs. Move __libc_waitpid prototype to include/sys/wait.h. * rwlock.c: Include for prototypes. * mutex.c: Likewise. * specific.c: Likewise. * ptfork.c: Likewise. * lockfile.c: Include internals.h to get prototypes. * events.c: Likewise. * sysdeps/alpha/pspinlock.c: Likewise. * sysdeps/arm/pspinlock.c: Likewise. * sysdeps/hppa/pspinlock.c: Likewise. * sysdeps/i386/pspinlock.c: Likewise. * sysdeps/ia64/pspinlock.c: Likewise. * sysdeps/m68k/pspinlock.c: Likewise. * sysdeps/mips/pspinlock.c: Likewise. * sysdeps/powerpc/pspinlock.c: Likewise. * sysdeps/s390/pspinlock.c: Likewise. * sysdeps/sh/pspinlock.c: Likewise. * sysdeps/sparc/sparc32/pspinlock.c: Likewise. * sysdeps/sparc/sparc32/sparcv9/pspinlock.c: Likewise. * sysdeps/sparc/sparc64/pspinlock.c: Likewise. 2000-12-27 Ulrich Drepper * attr.c (__pthread_attr_setstack): Fix setting of __stackaddr element. (__pthread_attr_getstack): Return correct address. Add warnings for using pthread_attr_getstackaddr and pthread_attr_setstackaddr. 2000-12-26 Ulrich Drepper * Examples/ex6.c (test_thread): Make static. * Examples/ex12.c (test_thread): Make static and add noreturn attribute. 2000-12-18 Jes Sorensen * linuxthreads/sysdeps/ia64/pt-machine.h: __compare_and_swap and compare_and_swap_with_release_semantics returns int not long. 2000-12-17 Andreas Jaeger * sysdeps/s390/pt-machine.h (testandset): Use long int as return value. * sysdeps/arm/pt-machine.h (testandset): Likewise. * sysdeps/hppa/pt-machine.h (testandset): Likewise. * sysdeps/m68k/pt-machine.h (testandset): Likewise. * sysdeps/sh/pt-machine.h (testandset): Likewise. * sysdeps/sparc/sparc32/pt-machine.h (testandset): Likewise. * sysdeps/sparc/sparc64/pt-machine.h (testandset): Likewise. 2000-12-17 Ulrich Drepper * sysdeps/i386/pt-machine.h (testandset): Adjust for prototype change. * sysdeps/i386/i686/pt-machine.h (testandset): Likewise. 2000-12-17 Andreas Jaeger * internals.h: Add prototypes for testandset and __compare_and_swap to shut up gcc warnings. 2000-12-06 Wolfram Gloger * join.c (pthread_detach): Allow case where the thread has already terminated. 2000-12-05 Andreas Jaeger * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Don't set mips2. * sysdeps/mips/pt-machine.h (testandset): Likewise. (__compare_and_swap): Likewise. Patches by Maciej W. Rozycki . 2000-11-20 Jakub Jelinek * Examples/ex3.c (main): Cast int to long before casting to void *. (search): Cast void * to long, not int. * Examples/ex8.c (main, thread): Similarly. * Examples/ex11.c (main): Similarly. * Examples/ex14.c (worker, do_test): Similarly. * ecmutex.c (worker, do_test): Similarly. (nlocks): Cast to int. 2000-11-08 Bruce Mitchener * linuxthreads.texi: Add documentation for pthreads attributes guardsize, stackaddr, stacksize, and stack. Fix typo in previous patch. Document pthread_[sg]etconcurrency(). Mark pthread_mutexattr_[sg]ettype() as POSIX rather than GNU. 2000-11-07 Ulrich Drepper * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_MESSAGE_PASSING): Don't define it. * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. Reported by Christopher Yeoh . 2000-11-06 Ulrich Drepper * cancel.c (pthread_cancel): Always set p_canceled, even if we are not doing it right now. Reported by Kaz Kylheku . 2000-10-30 Ulrich Drepper * Examples/ex4.c (main): Don't use exit() to avoid warning with broken compilers. 2000-10-29 Ulrich Drepper * attr.c (__pthread_attr_setguardsize): Don't round guardsize here. Reported by Bruce Mitchener . * linuxthreads.texi: Changes terminology to 'type' from 'kind' when discussing mutexes. (As per the Unix98 name for the API.) Changes documentation for pthread_mutexattr_setkind_np() and pthread_mutexattr_getkind_np() over to the Unix98 APIs for the same: pthread_mutexattr_settype() and pthread_mutexattr_gettype(). Changes references to PTHREAD_MUTEXATTR_FAST_NP to PTHREAD_MUTEXATTR_ADAPTIVE_NP. Begins to introduce discussion of the ``timed'' mutex type. This discussion is currently incomplete. Patch by Bruce Mitchener . 2000-10-26 Kazumoto Kojima Yutaka Niibe * sysdeps/sh/pt-machine.h (testandset): Since the operand of TAS.B has restrictions, use register. 2000-10-23 Andreas Schwab * Examples/ex14.c (TIMEOUT): Override default timeout. 2000-10-16 Ulrich Drepper * specific.c: Protect tsd array modification in thread data structures by getting the thread lock in pthread_key_delete and __pthread_destroy_specifics. Patch by Wolfram Gloger . 2000-10-12 Alan Modra * sysdeps/pthread/bits/initspin.h: New file. * spinlock.h: Move LOCK_INITIALIZER definition to . (__pthread_init_lock): Initialize lock with LT_SPINLOCK_INIT. (__pthread_alt_init_lock): Likewise. (__pthread_alt_trylock): Release lock with LT_SPINLOCK_INIT. 2000-10-12 David Huggins-Daines * oldsemaphore.c (__old_sem_init): Release lock with LT_SPINLOCK_INIT, not zero. * spinlock.c (__pthread_unlock): Likewise. (__pthread_alt_lock): Likewise. (__pthread_alt_timedlock): Likewise. (__pthread_alt_unlock): Likewise. * sysdeps/pthread/bits/libc-lock.h: Initialize locks with LT_SPINLOCK_INIT if it is non-zero. Likewise for init-once flags. * sysdeps/pthread/pthread.h: Include bits/initspin.h. Use LT_SPINLOCK_INIT do initialize spinlocks not 0. 2000-10-12 David Huggins-Daines * shlib-versions: Add version definitions for hppa-linux. 2000-10-12 Alan Modra * sysdeps/hppa/pspinlock.c: New file. * sysdeps/hppa/pt-machine.h: New file. * sysdeps/unix/sysv/linux/hppa/bits/initspin.h: New file. 2000-10-05 Jakub Jelinek * mutex.c (__pthread_mutex_destroy): Correct test of busy mutex for mutexes using alternate fastlocks. Patch by dtc@cmucl.cons.org. 2000-09-28 Martin Schwidefsksy * sysdeps/s390/pt-machine.h: Make %a0 the thread register. 2000-09-28 Ulrich Drepper * mutex.c (__pthread_mutex_unlock): For PTHREAD_MUTEX_RECURSIVE_NP test for owner first. Patch by Kaz Kylheku . * cancel.c (pthread_cancel): Don't do anything if cancelation is disabled. 2000-09-26 Ulrich Drepper * spinlock.h (__pthread_set_own_extricate_if): Optimize a bit. Patch by Kaz Kylheku . * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Remove _POSIX_MONOTONIC_CLOCK. * spinlock.h (__pthread_set_own_extricate_if): Add back locking and explain why. 2000-09-20 Andreas Jaeger * pthread.c [!__ASSUME_REALTIME_SIGNALS]: Make inclusion of "testrtsig.h" conditional. 2000-09-11 Ulrich Drepper * sysdeps/pthread/pthread.h: Declare pthread_attr_getstack and pthread_attr_setstack. * Versions [libpthread] (GLIBC_2.2): Export pthread_attr_getstack and pthread_attr_setstack. * attr.c (pthread_attr_getstack, pthread_attr_setstack): New functions. 2000-09-05 Ulrich Drepper * Examples/ex14.c: New file. * Makefile (tests): Add ex14. * mutex.c (__pthread_mutex_unlock): Correct test for already unlocked mutex. Patch by dtc@cmucl.cons.org. * ecmutex.c: New file. * Makefile (tests): Add ecmutex. 2000-09-04 H.J. Lu * attr.c (__pthread_attr_setguardsize): Use page_roundup instead of roundup to round up to the page size. 2000-09-03 Mark Kettenis * manager.c (pthread_exited): Correctly report event as TD_REAP instead of TD_DEATH. Fix comments. 2000-09-03 Ulrich Drepper * spinlock.h (testandset): Add cast to avoid warning. Patch by Franz Sirl . 2000-09-02 Andreas Jaeger * sysdeps/pthread/timer_routines.c: Include stdlib.h for abort prototype. 2000-09-01 Ulrich Drepper * sysdeps/pthread/bits/stdio-lock.h (_IO_cleanup_region_start): Fix typo in last patch (_mode -> _flags). * sysdeps/pthread/bits/stdio-lock.h (_IO_cleanup_region_start): Provide definition which respects _IO_USER_LOCK flag. 2000-08-30 Ulrich Drepper * manager.c (pthread_allocate_stack): Clear descriptor only if not mmaped. 2000-08-25 Ulrich Drepper * Makefile: Add rules to build and run unload. * unload.c: New file. * pthread.c (pthread_exit_process): Move thread_self use inside `if'. * sysdeps/pthread/pthread.h (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP): Defined. (PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP: Defined. 2000-08-24 Andreas Jaeger * Examples/ex13.c: Include for strerror prototype and for abort prototype. (pthr_cond_signal_mutex): Rewrite to silence GCC. (thread_start): Remove unused variable err. (main): Silence GCC warnings. 2000-08-22 Andreas Jaeger * Examples/ex13.c: New test by Kurt Garloff . * Makefile (tests): Add ex13. 2000-08-20 Ulrich Drepper * semaphore.h: Add restrict where required by AGd4. * sysdeps/pthread/pthread.h: Likewise. * sysdeps/pthread/unix/sysv/linux/bits/sigthread.h: Likewise. 2000-08-15 Ulrich Drepper * Makefile (tests): Add ex12. Add rule to build it. * Examples/ex12.c: New file. 2000-08-13 Ulrich Drepper * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_SEMAPHORES even though the implementation is not quite complete (but it reports it). Define _POSIX_MESSAGE_PASSING to -1. * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. 2000-08-12 Andreas Jaeger * sysdeps/mips/pt-machine.h (testandset): Add .set mips2 for assembler. (__compare_and_swap): Likewise. * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Likewise. 2000-08-10 Ulrich Drepper * pthread.c (__pthread_initial_thread): Initialize p_errnop and p_h_errnop correctly and not to NULL. 2000-08-05 Ulrich Drepper * Banner: Bump version number to 0.9. 2000-08-04 Ulrich Drepper * Makefile (tests): Add tststack. Add rule to build the program. * tststack.c: New file. * internals.h: Declare __pthread_max_stacksize. * pthread.c (__pthread_max_stacksize): New variable. (__pthread_initialize_manager): Determine __pthread_initialize_manager value. * manager.c (thread_segment): Return always NULL if FLOATING_STACKS. (pthread_allocate_stack): Allow kernel to choose stack address if FLOATING_STACKS. This also handles variable-sized stacks. Always allocate stack and guardpage together. Use mprotect to change guardpage access. * sysdeps/i386/useldt.h: Define FLOATING_STACKS and ARCH_STACK_MAX_SIZE. * attr.c (__pthread_attr_setstacksize): Also test value against upper limit. * manager.c (__pthread_nonstandard_stacks): Define only if THREAD_SELF is not defined. (pthread_allocate_stack): Always initialize gardaddr to a correct value. (pthread_handle_create): Unmap thread with one call. (pthread_free): Remove test for initial thread before removing stack. Unmap stack with one call. * pthread.c (__pthread_initial_thread): Initialize p_userstack to 1 to avoid removing the stack. 2000-07-27 Jes Sorensen * sysdeps/ia64/pspinlock.c (__pthread_spin_lock): Add load of spin lock to prime the cache before the atomic compare and exchange operation (cmpxchg4). This avoids the spinning on the cmpxchg4 instruction and reduces movement of the cache line back and forth between the processors (explanation by Asis K. Mallick from Intel). This basically makes the implementation operate the same as the Linux kernel implementation. * shlib-versions: Use GLIBC_2_2 for Linux/ia64. * sysdeps/ia64/pspinlock.c: New file. 2000-08-03 Ulrich Drepper * pthread.c: Move definition of __pthread_set_own_extricate_if... * spinlock.h: ...here. Remove locking. * internals.h: Remove __pthread_set_own_extricate_if prototype. * rwlock.c: Use THREAD_GETMEM And THREAD_SETMEM. (rwlock_rd_extricate_func): Don't determine self, let __pthread_lock do it. (rwlock_wr_extricate_func): Likewise. (rwlock_have_already): Optimize *pself handling a bit. * mutex.c: Use __builtin_expect. * pthread.c: Likewise. 2000-08-02 Andreas Jaeger * sysdeps/s390/pspinlock.c: New file. * sysdeps/s390/pt-machine.h: New file. Patches by Martin Schwidefsky . 2000-07-12 Maciej W. Rozycki * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Implement for R3K. * sysdeps/mips/pt-machine.h (testandset): Likewise. 2000-07-26 Andreas Jaeger * pthread.c: Initialize p_sem_avail. 2000-07-25 Ulrich Drepper * internals.h (struct __pthread_descr_struct): Add p_sem_avail. * semaphore.c: Handle spurious wakeups. * sysdeps/pthread/pthread.h: Add back PTHREAD_MUTX_FAST_NP as an alias for PTHREAD_MUTEX_ADAPTIVE_NP for source code compatibility. * pthread.c (__pthread_set_own_extricate): Use THREAD_GETMEM. (__pthread_wait_for_restart): Likewise. * condvar.c (pthread_cond_wait): Also check whether thread is cancelable before aborting loop. (pthread_cond_timedwait): Likewise. * signals.c (pthread_sighandler): Remove special code to restrore %gs on x86. (pthread_sighandler_t): Likewise. 2000-07-25 Mark Kettenis * internals.h (__RES_PTHREAD_INTERNAL): Remove define. * pthread.c: Include . (_res): Undefine. Add extern declaration. 2000-07-24 Ulrich Drepper * pthread.c (__pthread_initial_thread): Update initializer. (__pthread_manager_thread): Likewise. (pthread_initialize): Move setrlimit call to... (__pthread_initialize_manager): ...here. (__pthread_reset_main_thread): Reset also soft limit on stack size. * condvar.c: Handle spurious wakeups. [PR libc/1749]. * internals.h (struct _pthread_descr_struct): Add p_condvar_avail. 2000-07-21 Ulrich Drepper * spinlock.h: If IMPLEMENT_TAS_WITH_CAS is defined use __compare_and_swap to define testandset. * sysdeps/powerpc/pt-machine.h: Add volatile to asms. Define IMPLEMENT_TAS_WITH_CAS. 2000-07-20 Ulrich Drepper * Makefile: Pass -z nodelete to linker for libpthread.so generation if it understand this option. 2000-07-18 Mark Kettenis * manager.c (pthread_handle_create): Remove initialization of new_thread->p_res._sock. 2000-07-19 Kaz Kylheku Bugfixes to the variant of the code for machines with no compare and swap. * spinlock.c (__pthread_alt_lock, __pthread_alt_timedlock): Wait node was not being properly enqueued, due to failing to update the lock->__status field. * spinlock.c (__pthread_alt_timedlock): The oldstatus variable was being set inappropriately, causing the suspend function to be called with a null self pointer and crash. 2000-07-18 Ulrich Drepper * spinlock.h (__pthread_alt_trylock): Fix code used if no compare&swap is available. * spinlock.h (__pthread_trylock): Use __compare_and_swap, not compare_and_swap. * pthread.c (pthread_initialize): Don't use sysconf to determine whether the machine has more than one processor. * spinlock.c (__pthread_alt_timedlock): Add back one of the removed thread_self calls. 2000-07-18 Kaz Kylheku * spinlock.c (__pthread_alt_lock, __pthread_alt_timedlock): Changed __compare_and_swap to compare_and_swap in code which assumes compare swap is available. 2000-07-18 Kaz Kylheku * spinlock.c (__pthread_alt_lock, __pthread_alt_timedlock): Fixed bug whereby thr field of waitnode structure would not be correctly set unless a null self pointer is passed to the functions. Eliminated redundant calls to thread_self(). 2000-07-18 Jakub Jelinek * pthread.c (__pthread_initialize_manager): Lock __pthread_manager_thread.p_lock before calling clone. 2000-05-05 H.J. Lu * sysdeps/ia64/pt-machine.h (__compare_and_swap): Change it to have acquire semantics. (__compare_and_swap_with_release_semantics): New inline function. (HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS): New macro. 2000-01-28 Hans Boehm * manager.c: Fix the problem with signals at startup. Change the way that thread stacks are allocated on IA64. Clean up some of the guard page allocation stuff. 1999-12-19 H.J. Lu * internals.h (page_roundup): New. * attr.c (__pthread_attr_setguardsize); Use page_roundup instead of roundup. * manager.c (pthread_allocate_stack): Make sure guardaddr is page aligned with page_roundup if NEED_SEPARATE_REGISTER_STACK is define. 1999-12-17 Hans Boehm * manager.c (pthread_allocate_stack): Unmap the stack top if failed to map the stack bottom. Fix the guard page. (pthread_free): Fix the guard page. * pthread.c (pthread_initialize): Set rlimit correctly for NEED_SEPARATE_REGISTER_STACK. 1999-12-16 H.J. Lu * pthread.c (__pthread_initialize_manager): Pass __pthread_manager_thread_bos instead of __pthread_manager_thread_tos to __clone2. 1999-12-16 H.J. Lu * manager.c (pthread_allocate_stack): Correct the calculation of "new_thread_bottom". Remove MAP_GROWSDOWN from mmap for stack bottom. 1999-12-13 H.J. Lu * sysdeps/ia64/pt-machine.h (__compare_and_swap): Added a stop bit after setting ar.ccv. 1999-12-12 H.J. Lu * manager.c (pthread_allocate_stack): Make the starting address of the stack bottom page aligned. FIXME: it may need changes in other places. (pthread_handle_create): Likewise. 1999-12-11 Hans Boehm * manager.c (pthread_allocate_stack): Handle NEED_SEPARATE_REGISTER_STACK. (pthread_handle_create): Likewise. * pthread.c (__pthread_initialize_manager): Likewise. * sysdeps/ia64/pt-machine.h: Use r13 for thread pointer. 1999-12-02 H.J. Lu * sysdeps/ia64/pt-machine.h: New. 2000-07-13 Ulrich Drepper * wrapsyscall.c: Mark non-__ protected names as weak. PR libc/1466. 2000-07-12 Bruno Haible * Examples/ex8.c: Include , not . 2000-07-12 Ulrich Drepper * spinlock.c: Fix code for TEST_FOR_COMPARE_AND_SWAP being defined. Add tests also to new alternative spinlock implementation. * spinlock.h: Likewise. Patch by Kaz Kylheku . 2000-07-06 Ulrich Drepper * Version: Export __sigaction. * signals.c: Define __sigaction alias. Use __libc_sigaction instead of __sigaction. * pthread.c: Use __libc_sigaction instead of __sigaction. * condvar.c: Implement pthread_condattr_getpshared and pthread_condattr_setpshared. * mutex.c: Implement pthread_mutexattr_getpshared and pthread_mutexattr_setpshared. * Versions: Export new functions. * sysdeps/pthread/pthread.h: Add prototypes for new functions. * rwlock.c (pthread_rwlockattr_init): Use PTHREAD_PROCESS_PRIVATE. (pthread_rwlockattr_setpshared): Fail if PTHREAD_PROCESS_PRIVATE is not selected. 2000-07-04 Greg McGary * sysdeps/pthread/bits/libc-lock.h: Remove BP_SYM from pragmas. Include bp-sym.h only if _LIBC. 2000-07-04 Ulrich Drepper * spinlock.c (__pthread_unlock): Properly place write barrier. Patch by Kaz Kylheku . 2000-07-03 Ulrich Drepper * spinlock.c: Replace fast spinlocks by adaptive spinlocks which are faster on SMP systems. No more emulation of compare&swap for adaptive spinlocks. * spinlock.h: Likewise. * sysdeps/pthread/pthread.h: Shuffle PTHREAD_MUTEX_* values around. Replace fast with adaptive mutex. * mutex.c: Rewrite for replacement of fast by adaptive mutex. * condvar.c: Likewise. * pthread.c: Define and initialize __pthread_smp_kernel variable. * internals.h: Declare __pthread_smp_kernel. * sysdeps/pthread/bits/pthreadtypes.h: Update comment of _pthread_fastlock structure. Patch by Kaz Kylheku . * pthread.c: Remove initialization to zero from global variables. 2000-06-29 Jakub Jelinek * shlib-versions: Make sparc64 GLIBC_2.2+ only. 2000-06-28 Greg McGary * weaks.c: Wrap BP_SYM () around weak extern declarations of pthread functions that have pointers in their return+arg signatures. 2000-06-27 Greg McGary * sysdeps/pthread/bits/libc-lock.h: Wrap BP_SYM () around weak extern declarations of pthread functions that have pointers in their return+arg signatures. 2000-06-26 Ulrich Drepper * Makefile (tests): Add ex11. Add rules to build it. * Examples/ex11.c: New file. * rwlock.c: Fix complete braindamaged previous try to implement timedout functions. * spinlock.c: Pretty print. 2000-06-25 Ulrich Drepper * Makefile (tests): Add ex10. Add rules to build it. * Versions [GLIBC_2.2] (libpthread): Add pthread_mutex_timedlock, pthread_rwlock_timedrdlock, and pthread_rwlock_timedwrlock. * condvar.c (pthread_cond_wait): Allow mutex of kind PTHREAD_MUTEX_TIMED_NP. (pthread_cond_timedwait_relative): Likewise. * mutex.c (__pthread_mutex_init): Default is PTHREAD_MUTEX_TIMED_NP. (__pthread_mutex_trylock): Use __pthread_alt_trylock for PTHREAD_MUTEX_ERRORCHECK_NP. Handle PTHREAD_MUTEX_TIMED_NP. (__pthread_mutex_lock): Use __pthread_alt_lock for PTHREAD_MUTEX_ERRORCHECK_NP. Handle PTHREAD_MUTEX_TIMED_NP. (__pthread_mutex_timedlock): New function. (__pthread_mutex_unlock): Use __pthread_alt_unlock for PTHREAD_MUTEX_ERRORCHECK_NP. Handle PTHREAD_MUTEX_TIMED_NP. (__pthread_mutexattr_init): Use PTHREAD_MUTEX_TIMED_NP. (__pthread_mutexattr_settype): Allow PTHREAD_MUTEX_TIMED_NP. * spinlock.c: Implement alternate fastlocks. * spinlock.h: Add prototypes. * Examples/ex10.c: New file. * sysdeps/pthread/pthread.h: Add prototypes for new functions. Patch by Kaz Kylheku . * rwlock.c (__pthread_rwlock_rdlock): Optimize loop a bit. (__pthread_rwlock_timedrdlock): New function. (__pthread_rwlock_timedwrlock): New function. Use laternate fastlock function everywhere. 2000-06-21 Andreas Jaeger * sysdeps/pthread/timer_routines.c: Include for memset prototype. * join.c: Include for exit prototype. 2000-06-20 Ulrich Drepper * sysdeps/i386/useldt.h: Include . * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_BARRIERS. * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. * Makefile (libpthread-routines): Add barrier. (tests): Add ex9. Add rule to build ex9. * Versions: Export barrier functions. * barrier.c: New file. * Examples/ex9.c: New file. * sysdeps/pthread/pthread.h: Add barrier data types and declarations. * sysdeps/pthread/bits/pthreadtypes.h: Likewise. Patch by Kaz Kylheku . 2000-06-19 H.J. Lu * spinlock.h (HAS_COMPARE_AND_SWAP): Defined if HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS is defined. (compare_and_swap_with_release_semantics): New. Default to compare_and_swap if HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS is not defined. * spinlock.c (__pthread_unlock): Call compare_and_swap_with_release_semantics () instead of compare_and_swap (). 2000-06-19 Ulrich Drepper * sysdeps/pthread/timer_create.c: Use _set_errno instead of assigning to errno directly. * sysdeps/pthread/timer_delete.c: Likewise. * sysdeps/pthread/timer_getoverr.c: Likewise. * sysdeps/pthread/timer_gettime.c: Likewise. * sysdeps/pthread/timer_settime.c: Likewise. 2000-06-13 Kaz Kylheku Timer nodes are now reference counted, and can be marked as deleted. This allows for the safe release of the global mutex in the middle without losing the timer being operated on. * sysdeps/pthread/posix-timer.h (struct timer_node): The inuse member is now an enum with three values, so that an intermediate state can be represented (deleted but not free for reuse yet). New refcount member added. * sysdeps/pthread/timer_routines.c: Likewise. * sysdeps/pthread/posix-timer.h (timer_addref, timer_delref, timer_valid): New inline functions added. * sysdeps/pthread/timer_gettime.c (timer_gettime): Function restructured, recursive deadlock bug fixed. * sysdeps/pthread/timer_gettime.c (timer_gettime): Uses new timer_addref to ensure that timer won't be deleted while mutex is not held. Also uses timer_invalid to perform validation of timer handle. * sysdeps/pthread/timer_settime.c (timer_settime): Likewise. * sysdeps/pthread/timer_getoverr.c (timer_getoverrun): Likewise. 2000-06-14 Ulrich Drepper * shlib-versions: Add entry for SH. Patch by Kaz Kojima . 2000-06-13 Kaz Kylheku A few optimizations. Got rid of unnecessary wakeups of timer threads, tightened up some critical regions and micro-optimized some list manipulation code. * sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer): Returns int value now to indicate whether timer was queued at head. * sysdeps/pthread/posix-timer.h: Likewise. * sysdeps/pthread/timer_settime.c (timer_settime): Takes advantage of new return value from __timer_thread_queue_timer to avoid waking up timer thread unnecessarily. * sysdeps/pthread/posix-timer.h (timer_id2ptr): No longer checks inuse flag, because this requires mutex to be held. Callers updated to do the check when they have the mutex. * sysdeps/pthread/timer_getoverr.c: Add check for inuse here. * sysdeps/pthread/timer_settime.c (timer_settime): Tighter critical regions: avoids making system calls while holding timer mutex, and a few computations were moved outside of the mutex as well. * sysdeps/pthread/timer_gettime.c (timer_gettime): Likewise. * sysdeps/pthread/posix-timer.h (list_unlink_ip): Function name changed to list_unlink_ip, meaning idempotent. Pointer manipulation changed to get better better code out of gcc. * sysdeps/pthread/timer_routines.c (list_unlink): Non-idempotent version of list_unlink added here. * sysdeps/pthread/timer_delete.c: Use appropriate list unlink function in all places: idempotent one for timers, non-idempotent one for thread nodes. * sysdeps/pthread/timer_settime: Likewise. * sysdeps/pthread/timer_routines.c: Likewise. 2000-06-13 Ulrich Drepper * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_TIMERS): Define. * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. * sysdeps/pthread/Makefile: Remove tests definition. 2000-06-12 Kazumoto Kojima Yutaka Niibe * sysdeps/sh/pspinlock.c: New file. * sysdeps/sh/pt-machine.h: New file. 2000-06-12 Ulrich Drepper * Makefile (tests): Add joinrace. * Examples/ex6.c: Test return value of pthread_join. 2000-06-11 Geoff Keating * sysdeps/powerpc/pspinlock.c (__pthread_spin_lock): Implement. (__pthread_spin_trylock): Implement. (__pthread_spin_unlock): Implement. (__pthread_spin_init): Implement. (__pthread_spin_destroy): Implement. 2000-06-10 Ulrich Drepper * sysdeps/pthread/timer_routines.c (list_append): Little fix to really append the entry. 2000-06-10 Andreas Jaeger * lockfile.c (__fresetlockfiles): Remove unused variable fp. 2000-06-10 Kaz Kylheku * sysdeps/pthread/timer_create.c: Thread matching now done on clock type as well as thread attributes. There are individual global signal-delivering threads for different clock types. * sysdeps/pthread/posix-timer.h: Likewise. * sysdeps/pthread/timer_routines.c: Likewise. * sysdeps/pthread/timer_routines.c: Thread allocation and deallocation function now remembers to put thread on active list and remove from active list. Thus now the feature of binding multiple timers to a single thread actually works. 2000-06-10 Ulrich Drepper * pthread.c (__pthread_create_2_1): Optimize a bit. * internals.h (invalid_handle): Also test for p_terminated != 0. (nonexisting_handle): New function. Same as old invalid_handle. * join.c (pthread_join): Use nonexisting_handle instead of invalid_handle to test for acceptable thread handle. * manager.c (pthread_handle_free): Likewise. * joinrace.c: New file. Reported by Permaine Cheung . 2000-06-08 Ulrich Drepper * sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer): Correct handling of matching variable. * sysdeps/pthread/tst-timer.c (main): Rewrite initializers to avoid warnings. * sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer): Be prepared for empty timer list. * sysdeps/pthread/timer_create.c (timer_create): Correct names of CPUTIME clock ID. Add support for thread clocks. * sysdeps/pthread/posix-timer.h (timer_ptr2id): Operands in subtraction were switched. * sysdeps/pthread/timer_routines.c (init_module): Use THREAD_MAXNODES threads. * sysdeps/pthread/posix-timer.h (struct timer_node): Add creator_pid. * sysdeps/pthread/timer_create.c: Fill in creator_pid. * sysdeps/pthread/timer_routines.c (thread_expire_timer): Send signal with sigqueueinfo is this system call is available. * sysdeps/pthread/timer_create.c (timer_create): Allow CLOCK_CPUTIME if _POSIX_CPUTIME is defined. * sysdeps/pthread/Makefile: New file. Add rules to build timer functionality. * sysdeps/unix/sysv/linux/bits/local_lim.h: Add TIMER_MAX. 2000-06-04 Kaz Kylheku * sysdeps/pthread/posix-timer.h: New file. * sysdeps/pthread/timer_create.c: New file. * sysdeps/pthread/timer_delete.c: New file. * sysdeps/pthread/timer_getoverr.c: New file. * sysdeps/pthread/timer_gettime.c: New file. * sysdeps/pthread/timer_routines.c: New file. * sysdeps/pthread/timer_settime.c: New file. * sysdeps/pthread/tst-timer.c: New file. 2000-06-08 Ulrich Drepper * sysdeps/unix/sysv/linux/bits/local_lim.h: Remove OPEN_MAX and LINK_MAX definitions if necessary. 2000-06-04 Kaz Kylheku Added missing fork time handling of global libio lock. * lockfile.c (__fresetlockfiles): Now also resets the list lock, not just the individual stream locks. Rewritten to use new iterator interface provided by libio rather than accessing global variable. * lockfile.c (__flockfilelist, _funlockfilelist): New functions which lock and unlock the stream list using the new interface provied by libio. * internals.h: Likewise. * ptfork.c (__fork): Now calls __flockfilelist before fork, and __funlockfilelist in the parent after the fork. Child still calls __fresetlockfiles as before. * linuxthreads.texi: Now explains what happens to streams at fork time. Also whole new section on forking and thread added. Definition of pthread_atfork moved out of Miscellaneous Functions to this new section. 2000-06-04 Jakub Jelinek * sysdeps/sparc/sparc32/sparcv9/pspinlock.c (__pthread_spin_lock): Add missing register. * sysdeps/sparc/sparc64/pspinlock.c (__pthread_spin_lock): Likewise. 2000-06-02 Jakub Jelinek * sysdeps/sparc/sparc32/pspinlock.c: Implement spinlocks. * sysdeps/sparc/sparc32/sparcv9/pspinlock.c: New. * sysdeps/sparc/sparc64/pspinlock.c: Implement spinlocks. 2000-05-31 Andreas Jaeger * sysdeps/mips/pspinlock.c: Implement spinlocks. 2000-05-28 Ulrich Drepper * spinlock.c (__pthread_lock): Remove ASSERT. * Makefile (tests): Add ex8. * Examples/ex8.c: New file. 2000-05-12 Kaz Kylheku Bugfix: The pthread_atfork mechanism now takes care of its own internal mutex at fork time. * ptfork.c (__fork): Revised so that the mutex is held across the fork operation and while the handlers are called, and so that the child resets the mutex. * linuxthreads.texi: Updated pthread_atfork documentation to make it clear that fork and pthread_atfork can't be reentered from atfork handlers, that pthread_atfork and fork are mutually atomic, and that the handlers are inherited by the child process. 2000-05-24 Ulrich Drepper * Makefile (libpthread-routines): Add pspinlock. * cancel.c: Rename __pthread_spin_unlock back to __pthread_unlock. Use struct _pthread_fastlock instead of pthread_spinlock_t. * condvar.c: Likewise. * internals.h: Likewise. * join.c: Likewise. * manager.c: Likewise. * mutex.c: Likewise. * pthread.c: Likewise. * rwlock.c: Likewise. * semaphore.c: Likewise. * signals.c: Likewise. * spinlock.h: Likewise. * spinlock.c: Likewise. Remove pthread_spin_lock functions. * sysdeps/alpha/pspinlock.c: New file. * sysdeps/arm/pspinlock.c: New file. * sysdeps/i386/pspinlock.c: New file. * sysdeps/m68k/pspinlock.c: New file. * sysdeps/mips/pspinlock.c: New file. * sysdeps/powerpc/pspinlock.c: New file. * sysdeps/sparc/sparc32/pspinlock.c: New file. * sysdeps/sparc/sparc64/pspinlock.c: New file. * sysdeps/pthread/bits/pthreadtypes.h: Remove pthread_spinlock_t back to _pthread_fastlock. Define new pthread_spinlock_t. 2000-05-24 Andreas Jaeger * sysdeps/i386/i686/pt-machine.h: Only use LDT on newer kernels. 2000-05-21 Jakub Jelinek * manager.c (pthread_handle_create): Initialize p_res._sock to -1. 2000-05-13 Jakub Jelinek * internals.h (__RES_PTHREAD_INTERNAL): Define. 2000-05-06 Kaz Kylheku * mutex.c (pthread_once): IN_PROGRESS state of pthread_once_t object state is represented with additional bits which distinguish whether that state was set up in the current process, or in an ancestor process. If that state was set in an ancestor, it means that a fork happened while thread was executing the init function. In that case, the state is reset to NEVER. * mutex.c (__pthread_once_fork_prepare): New function. (__pthread_once_fork_child): Likewise (__pthread_once_fork_parent): Likewise (__pthread_reset_pthread_once): Removed. * ptfork.c (__fork): Call new handlers in mutex.c. * internals.h: Declarations of new mutex.c functions added. Declaration of removed function deleted. * linuxthreads.texi: Updated documentation about pthread_once to clarify what happens under cancellation and forking. 2000-05-06 Kaz Kylheku * internals.h: New thread manager request type, REQ_KICK. * join.c (pthread_exit): main thread now calls exit() instead of _exit() in order to proper process cleanup. * manager.c (__pthread_manager): Do not terminate manager after unblocking main thread; wait for main thread's REQ_PROCESS_EXIT request instead. Also, added REQ_KICK case to handle new request; this just does nothing. * manager.c (pthread_exited): Do not terminate manager after unblocking main thread. * manager.c (__pthread_manager_sighandler): If the main thread is waiting for all other threads to die, send a REQ_KICK into the thread manager request pipe to get it to clean out the threads and unblock the main thread as soon as possible. This fixes the 2000 millisecond hang on shutdown bug. * Examples/ex7.c: New file, tests shutdown behavior when all threads including the main one call pthread_exit(), or implicitly do so. * Makefile (tests): Add ex7. 2000-05-05 Andreas Jaeger * sysdeps/unix/sysv/linux/i386/getcpuclockid.c (pthread_getcpuclockid): Correct test for ourselves. 2000-05-05 Ulrich Drepper * internals.h (struct _pthread_descr_struct): Reorganization. Allocate room for 16 pointers at head of the structure for future thread-local data handling. Move p_self member in this area. * manager.c (pthread_handle_create): Adjust use of p_self. * sysdeps/i386/useldt.h (THREAD_SELF): Likewise. * pthread.c (__pthread_initial_thread): Adjust initialization. (__pthread_manager_thread): Likewise. 2000-04-29 Bruno Haible * join.c (pthread_exit): Use THREAD_GETMEM_NC instead of THREAD_GETMEM for eventmask larger than 1 word. 2000-04-27 Ulrich Drepper * Versions [libpthread] (GLIBC_2.2): Add __pthread_initialize_minimal. * pthread.c (__pthread_initialize_minimal): New function. Perform minimal initialization. (pthread_initialize): Remove this code here. * sysdeps/i386/i686/pt-machine.h: Include "../useldt.h" again. We are working around the problem in glibc. 2000-04-25 Ulrich Drepper * sysdeps/i386/i686/pt-machine.h: Do not use "../useldt.h" for now. First gcc must be fixed (more concrete: libgcc). 2000-04-24 Ulrich Drepper * pthread.c: Remove special treatement for interrupt handlers on x86. * manager.c (pthread_free): Use FREE_THREAD not FREE_THREAD_SELF. * sysdeps/i386/useldt.h: Use "q" constraint instead of "r" where necessary. * sysdeps/i386/i686/pt-machine.h: Include "../useldt.h". 2000-04-24 Mark Kettenis * join.c (pthread_exit): Set p_terminated after reporting the termination event instead of before. 2000-04-20 Jakub Jelinek * sysdeps/pthread/bits/libc-lock.h: Only declare __pthread_rwlock_* if __USE_UNIX98. 2000-04-18 Andreas Jaeger * Versions: Use ld instead of ld.so. 2000-04-18 Jakub Jelinek * sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h (struct sigcontext): Remove the typedef keyword. 2000-04-18 Jakub Jelinek * sysdeps/sparc/sparc64/pt-machine.h (MEMORY_BARRIER): Use membar, not stbar. (READ_MEMORY_BARRIER): Define. * spinlock.c (__pthread_spin_unlock): Use READ_MEMORY_BARRIER, not MEMORY_BARRIER. * internals.h (READ_MEMORY_BARRIER): Define if not defined in sysdep headers. 2000-04-17 Ulrich Drepper * sysdeps/unix/sysv/linux/i386/getcpuclockid.c (pthread_getcpuclockid): Don't compare thread_id with thread_self, use thread_handle(). 2000-04-16 Ulrich Drepper * condvar.c (pthread_cond_timedwait_relative): Don't test for owner if fast mutex is used. Don't initialize `already_canceled' twice. Correctly test for return value of timedsuspend. * pthread.c: Correct long-time braino. We never set SA_SIGINFO and therefore don't need the _rt versions of the signal handlers. 2000-04-15 Ulrich Drepper * pthread.c (pthread_yield): New function. * sysdeps/pthread/pthread.h (pthread_yield): Add prototype. * Versions [libpthread] (GLIBC_2.2): Add pthread_yield. * internals.h: Declare __pthread_yield. * pthread.c (pthread_initialize): Avoid a bit more code if realtime signals are known to exist. * pthread.c: Is __ASSUME_REALTIME_SIGNALS then avoid generating code to dynamically detect RT signals and avoid generating compatibility functions with old kernel. * restart.h (restart) [__ASSUME_REALTIME_SIGNALS]: Use __pthread_restart_new directly. (suspend) [__ASSUME_REALTIME_SIGNALS]: Use __pthread_wait_for_restart_signal directly. (timedsuspend) [__ASSUME_REALTIME_SIGNALS]: Use __pthread_timedsuspend_new directly. 2000-04-15 Ulrich Drepper * condvar.c: Remove all the special code to handle cond_timedwait. Use timedsuspend instead. * internals.h: Declare __pthread_timedsuspend_old, __pthread_timedsuspend_new, and __pthread_timedsuspend. Remove declaration of __pthread_init_condvar. * pthread.c: Define __pthread_timedsuspend variable. (__pthread_timedsuspend_old): New function. Timed suspension implementation for old Linux kernels. (__pthread_timedsuspend_new): New function. Timed suspension implementation for new Linux kernels. * restart.h (timedsuspend): New function. Call appropriate suspension function through __pthread_timedsuspend. * semaphore.c (sem_timedwait): Use timedsuspend, don't duplicate the code. Patch by Kaz Kylheku . * internals.h (WRITE_MEMORY_BARRIER): Define as MEMORY_BARRIER if undefined. * spinlock.c: Use WRITE_MEMORY_BARRIER instead of MEMORY_BARRIER where possible. * sysdeps/alpha/pt-machine.h: Define WRITE_MEMORY_BARRIER. * sysdeps/sparc/sparc64/pt-machine.h: Likewise. * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add _POSIX_SPAWN. * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. 2000-04-14 Andreas Jaeger * weaks.c: Fix typo. * shlib-versions (mips.*-.*-linux.*): Support only GLIBC 2.0 and 2.2 for linuxthreads. 2000-04-13 Ulrich Drepper * sysdeps/unix/sysv/linux/i386/getcpuclockid.c (pthread_getcpuclockid): Fix typo. 2000-04-12 Ulrich Drepper * Makefile (libpthread-routines): Add getcpuclockid. * Versions [libpthread] (GLIBC_2.2): Add pthread_getcpuclockid. * sysdeps/pthread/getcpuclockid.c: New file. * sysdeps/unix/sysv/linux/i386/getcpuclockid.c: New file. * sysdeps/pthread/pthread.h: Add prototype for pthread_getcpuclockid. * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_SPIN_LOCKS): Defined. * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. * sysdeps/pthread/pthread.h: Add prototypes for pthread_spin_init, pthread_spin_destroy, pthread_spin_lock, pthread_spin_trylock, and pthread_spin_unlock. * sysdeps/pthread/bits/pthreadtypes.h: Change struct _pthread_fastlock into pthread_spinlock_t. Change all uses. * spinlock.c: Implement pthread_spin_lock. Rename __pthread_unlock to __pthread_spin_unlock and define weak alias for real name. Define pthread_spin_trylock, pthread_spin_init, and pthread_spin_destroy. Change all uses of _pthread_fastlock to pthread_spinlock_t. * spinlock.h: Rename __pthread_unlock to __pthread_spin_unlock. Change all uses of _pthread_fastlock to pthread_spinlock_t. * Versions [libpthread] (GLIBC_2.2): Add pthread_spin_init, pthread_spin_destroy, pthread_spin_lock, pthread_spin_trylock, and pthread_spin_unlock. * cancel.c: Use __pthread_spin_unlock instead of __pthread_unlock. Change all uses of _pthread_fastlock to pthread_spinlock_t. * condvar.c: Likewise. * internals.h: Likewise. * join.c: Likewise. * manager.c: Likewise. * mutex.c: Likewise. * pthread.c: Likewise. * rwlock.c: Likewise. * semaphore.c: Likewise. * signals.c: Likewise. * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add various new POSIX macros. * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: New file. 2000-04-11 Ulrich Drepper * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add _POSIX_SHARED_MEMORY_OBJECTS. 2000-04-11 Andreas Jaeger * sysdeps/mips/pt-machine.h (MEMORY_BARRIER): Define. (__compare_and_swap): Mark as modifying memory. 2000-04-11 Geoff Keating * sysdeps/powerpc/pt-machine.h (MEMORY_BARRIER): Don't be __volatile__. (__compare_and_swap): Replace other 'sync' with MEMORY_BARRIER. Don't have the 'asm' __volatile__. 2000-04-11 Ulrich Drepper * internals.h: Define MEMORY_BARRIER as empty if not defined already. * spinlock.c (__pthread_lock): Add memory barriers. (__pthread_unlock): Likewise. * sysdeps/alpha/pt-machine.h (MEMORY_BARRIER): Define using mb instruction. (RELEASE): Not needed anymore. (__compare_and_swap): Mark asm as modifying memory. * sysdeps/powerpc/pt-machine.h (sync): Remove. Replace with definition of MEMORY_BARRIER. (__compare_and_swap): Use MEMORY_BARRIER instead of sync. * sysdeps/sparc/sparc32/pt-machine.h (RELEASE): Not needed anymore. (MEMORY_BARRIER): Define using stbar. * sysdeps/sparc/sparc64/pt-machine.h (MEMORY_BARRIER): Define using stbar. (__compare_and_swap): Use MEMORY_BARRIER to ensure ordering. Patch by Xavier Leroy based on comments by Mike Burrows . 2000-04-09 Ulrich Drepper * signals.c (sigaction): Fix return value for the case SIG is one of the signals the implementation uses. Patch by Xavier.Leroy@inria.fr. 2000-04-01 Andreas Jaeger * attr.c: Use shlib-compat macros. * oldsemaphore.c: Likewise. * pthread.c: Likewise. * weaks.c: Likewise. 2000-03-26 Ulrich Drepper * semaphore.c (sem_timedwait): New function. Patch by Carl Mailloux . * semaphore.h: Declare sem_timedwait. * Versions [libpthread] (GLIBC_2.2): Add sem_timedwait. 2000-03-26 Roland McGrath * sysdeps/pthread/Makefile: File removed. 2000-03-23 Ulrich Drepper * mutex.c (__pthread_reset_pthread_once): Reset once_masterlock. * internals.h (__pthread_reset_pthread_once): Add prototype. * ptfork.c (__fork): Call __pthread_reset_pthread_once. * manager.c (pthread_handle_create): Store ID of new thread before clone call. 2000-03-21 Ulrich Drepper * attr.c: Use new macros from shlib-compat.h to define versions. * oldsemaphore.c: Likewise. * semaphore.c: Likewise. * weaks.c: Likewise. * pthread.c: Update for new SHLIB_COMPAT definition. * manager.c (__pthread_manager): Unmask debug signal. * pthread.c (pthread_initialize): Test for address of __dso_handle being NULL, not value. Use __on_exit, not on_exit. Patch by Andreas Jaeger . * pthread.c: Use new macros from shlib-compat.h to define versions. 2000-03-19 Ulrich Drepper * pthread.c (pthread_initialize): Instead of on_exit use __cxa_atexit if __dso_label is available to allow unloading the libpthread shared library. 2000-03-16 Ulrich Drepper * condvar.c: Make tests for ownership of mutex less strict. 2000-03-14 Ulrich Drepper * condvar.c (pthread_cond_wait): Check whether mutex is owned by current thread and return error if not. (pthread_cond_timedwait_relative_old): Likewise. (pthread_cond_timedwait_relative_new): Likewise. * mutex.c (__pthread_once): Handle cancelled init function correctly. (pthread_once_cancelhandler): New function. Patch by Kaz Kylheku . 2000-03-14 Andreas Jaeger * pthread.c (pthread_handle_sigcancel_rt): GS has been renamed to REG_GS. (pthread_handle_sigrestart_rt): Likewise. * signals.c (pthread_sighandler_rt): Likewise. 2000-03-02 Andreas Jaeger * sysdeps/pthread/bits/libc-lock.h: Fix typo. Reported by Sean Chen . 2000-02-28 Andreas Jaeger * rwlock.c: Fix typo. 2000-02-27 Ulrich Drepper * rwlock.c: Define __* variants of the functions and make old names aliases. * Versions [GLIBC_2.2]: Export the __pthread_rwlock_* functions. * sysdeps/pthread/bits/libc-lock.h: Define __libc_rwlock_* macros. 2000-02-25 Andreas Jaeger * Versions: Export pread, __pread64, pread64, pwrite, __pwrite64, pwrite64, lseek64, open64, and __open64 with version 2.2. 2000-02-22 Ulrich Drepper * semaphore.h (SEM_FAILED): Use 0 not NULL. 2000-02-14 Ulrich Drepper * condvar.c (pthread_cond_timedwait_relative_old): Tight loop with nanosleep does not work either. Get absolute time inside the loop. (pthread_cond_timedwait_relative_new): Likewise. Patch by Kaz Kylheku . 2000-02-13 Andreas Jaeger * condvar.c (pthread_cond_timedwait_relative_new): Fix last patch. (pthread_cond_timedwait_relative_old): Likewise. 2000-02-13 Ulrich Drepper * condvar.c (pthread_cond_timedwait_relative_old): Undo last patch but keep the code around. A bug in the kernel prevent us from using the code. (pthread_cond_timedwait_relative_new): Likewise. (PR libc/1597 and libc/1598). 2000-02-01 Kaz Kylheku * condvar.c (pthread_cond_timedwait_relative_old): Do tight loop around nanosleep calls instead of around most of the function (pthread_cond_timedwait_relative_new): Likewise. body. Got rid of backwards goto and one local. 2000-01-31 Ulrich Drepper * condvar.c (pthread_cond_timedwait_relative_old): Recompute time before every nanosleep call to account for time spent in the rest of the function. (pthread_cond_timedwait_relative_new): Likewise. Patch by khendricks@ivey.uwo.ca (PR libc/1564). 2000-01-29 Ulrich Drepper * condvar.c (pthread_cond_timedwait_relative_old): Get remaining time from nanosleep call so that in case we restart we only wait for the remaining time. (pthread_cond_timedwait_relative_new): Likewise. Patch by khendricks@ivey.uwo.ca (PR libc/1561). 2000-01-18 Ulrich Drepper * manager.c (pthread_allocate_stack): Compute guard page address correctly. Patch by HJ Lu. * sysdeps/pthread/pthread.h: Define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP. 2000-01-16 Ulrich Drepper * rwlock.c (pthread_rwlock_unlock): Correct one more problem with preference handling. (pthread_rwlockattr_setkind_np): Allow PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP. Patches by Kaz Kylheku . 2000-01-12 Ulrich Drepper * internals.h (pthread_readlock_info): New structure. (_pthread_descr_struct): Add p_readlock_list, p_readlock_free, and p_untracked_readlock_count. * pthread.c (__pthread_initial_thread, pthread_manager_thread): Add initializers for new fields. * manager.c (pthread_free): Free read/write lock lists. * queue.h (queue_is_empty): New function. * rwlock.c: Implement requirements about when readers should get locks assigned. * sysdeps/pthread/pthread.h (PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP): New definition. * sysdeps/pthread/bits/pthreadtypes.h (struct _pthread_rwlock_t): Define this name as well. Patches by Kaz Kylheku . 2000-01-05 Ulrich Drepper * pthread.c (__pthread_initial_thread, pthread_manager_thread): Adjust initializers for struct _pthread_descr_struct change. * internals.h (struct _pthread_descr_struct): Move new elements to the end. 2000-01-03 Kaz Kylheku Redesigned how cancellation unblocks a thread from internal cancellation points (sem_wait, pthread_join, pthread_cond_{wait,timedwait}). Cancellation won't eat a signal in any of these functions (*required* by POSIX and Single Unix Spec!). * condvar.c: Spontaneous wakeup on pthread_cond_timedwait won't eat a simultaneous condition variable signal (not required by POSIX or Single Unix Spec, but nice). * spinlock.c: __pthread_lock queues back any received restarts that don't belong to it instead of assuming ownership of lock upon any restart; fastlock can no longer be acquired by two threads simultaneously. * restart.h: Restarts queue even on kernels that don't have queued real time signals (2.0, early 2.1), thanks to atomic counter, avoiding a rare race condition in pthread_cond_timedwait. 1999-12-31 Andreas Jaeger * internals.h: Remove duplicate prototype declarations. * weaks.c: Remove __THROW from prototypes since the file is not compiled by a C++ compiler. * internals.h: Likewise. 1999-12-30 Andreas Jaeger * sysdeps/pthread/pthread.h: Move internal functions to... * sysdeps/pthread/bits/libc-lock.h: ...here. 1999-12-29 Andreas Jaeger * sysdeps/pthread/pthread.h: Fix typos, reformat comments. 1999-12-28 Ulrich Drepper * sysdeps/alpha/pt-machine.h: Move stack_pointer definition to the beginning. * manager.c (__pthread_start): Add one more cast to prevent warning on 64bit machines. 1999-12-21 Ulrich Drepper * manager.c (pthread_handle_create): Set p_pid of new thread before calling the callback function to report a new thread. 1999-12-20 Andreas Jaeger * pthread.c (pthread_initialize): Move getrlimit call after setting of errno. 1999-12-18 Ulrich Drepper * Versions: Export pread, __pread64, pread64, pwrite, __pwrite64, pwrite64, lseek64, open64, and __open64. * wrapsyscall.c: Define pread, __pread64, pread64, pwrite, __pwrite64, pwrite64, lseek64, open64, and __open64. * manager.c (pthread_allocate_stack): Correct computation of new_thread_bottom. Correct handling of stack size and when the rlimit method to guard for stack growth is used. * pthread.c (pthread_initialize): Stack limit must be STACK_SIZE minus one pagesize (not two). 1999-12-03 Andreas Jaeger * Versions: Add __res_state with version GLIBC_2.2. * errno.c (__res_state): New function to return thread specific resolver state. * pthread.c (pthread_initialize): Initialize p_resp. (__pthread_reset_main_thread): Also set p_resp. * manager.c (pthread_handle_create): Initialize p_resp. * internals.h: Add thread specific resolver state. Based on patches by Adam D. Bradley . 1999-12-01 Ulrich Drepper * sysdeps/i386/pt-machine.h: Move stack_pointer definition to the beginning. * sysdeps/i386/i686/pt-machine.h: Likewise. Patches by Alan Modra . 1999-11-23 Ulrich Drepper * manager.c (pthread_start_thread_event): Initialize p_pid already here. 1999-11-22 Ulrich Drepper * internals.h: Add prototype for __pthread_manager_event. * manager.c (__pthread_manager_event): New function. (pthread_start_thread_event): Correct computation of self. Use INIT_THREAD_SELF. * pthread.c (__pthread_manager_thread): Initialize p_lock. (__pthread_initialize_manager): Respect event flags also for creation of the manager thread. 1999-11-08 Ulrich Drepper * pthread.c (__pthread_initialize_manager): Initialize __pthread_manager_thread.p_tid. 1999-11-02 Ulrich Drepper * internals.h: Declare __pthread_last_event. * manager.c: Define __pthread_last_event. (pthread_handle_create): Set __pthread_last_event. (pthread_exited): Likewise. * join.c (pthread_exit): Likewise. * Makefile (libpthread-routines): Add events. * events.c: New file. * internals.h: Protect against multiple inclusion. Include thread_dbP.h header. (struct _pthread_descr_struct): Add new fields p_report_events and p_eventbuf. Declare event reporting functions. * join.c (pthread_exit): Signal event if this is wanted. * manager.c (__pthread_threads_events): New variable. (pthread_handle_create): Take new parameters with event information. Signal TD_CREATE event if wanted. (__pthread_manager): Adjust pthread_handle_create call. (pthread_start_thread_event): New function. Block until manager is finished and then call pthread_start_thread. (pthread_exited): Signal TD_REAP event if wanted. 1999-10-26 Ulrich Drepper * restart.h (suspend_with_cancellation): Rewrite as a macro. * condvar.c (pthread_cond_timedwait_relative): Don't mark as inline. 1999-10-25 Andreas Jaeger * internals.h: Remove K&R compatibility. * no-tsd.c: Likewise. * semaphore.h: Likewise. * signals.c: Likewise. * sysdeps/pthread/bits/libc-tsd.h: Likewise. * sysdeps/unix/sysv/linux/bits/sigthread.h: Likewise. * weaks.c: Likewise. 1999-10-21 Xavier Leroy * pthread.c: For i386, wrap pthread_handle_sigrestart and pthread_handle_sigcancel with functions that restore %gs from the signal context. For each signal handling function, two wrappers are required, one for a non-RT signal and one for a RT signal. * signal.c: For i386, add code to restore %gs from the signal context in pthread_sighandler and pthread_sighandler_rt. 1999-10-17 Ulrich Drepper * internals.h (PTHREAD_START_ARGS_INITIALIZER): Add cast. 1999-10-14 Ulrich Drepper * pthread.c (__pthread_initial_thread): Pass argument to PTHREAD_START_ARGS_INITIALIZER. (__pthread_manager_thread): Likewise. * internals.h (PTHREAD_START_ARGS_INITIALIZER): Add parameter to initialize function. * manager.c (pthread_handle_create): Remove p_startfct initialization. * internals.h (_pthread_descr_struct): We don't need p_startfct field. 1999-10-12 Ulrich Drepper * internals.h: Correct return types for __libc_read and __libc_write. 1999-10-09 Andreas Jaeger * internals.h: Add __new_sem_post to get prototype in manager.c; include semaphore.h for needed types. 1999-10-08 Ulrich Drepper * manager.c (__pthread_manager) [REQ_POST]: Use __new_sem_post directly instead of calling sem_post which should not be necessary but is faster and might help in some case to work around problems. Patch by khendricks@ivey.uwo.ca [libc/1382]. 1999-10-08 Andreas Schwab * sysdeps/pthread/Subdirs: New file. * Implies: Removed. 1999-10-07 Ulrich Drepper * Implies: New file. * internals.h (struct _pthread_descr_struct): Add p_startfct. * manager.c (pthread_handle_create): Initialize p_startfct. * pthread.c: Define __linuxthread_pthread_sizeof_descr variable. 1999-09-25 Ulrich Drepper * manager.c (__linuxthreads_pthread_threads_max): New variable. * specific.c (__linuxthreads_pthread_keys_max): New variable. (__linuxthreads_pthread_key_2ndlevel_size): New variable. * condvar.c (pthread_cond_timedwait_relative): Never return with EINTR. Patch by Andreas Schwab. 1999-09-19 Ulrich Drepper * signals.c (sigaction): Correct last patch. Don't select pthread_sighandler_rt based on the signal number but instead of the SA_SIGINFO flag. 1999-09-23 Ulrich Drepper * specific.c: Move definitions of struct pthread_key_struct and destr_function to ... * internals.h: ...here. 1999-09-18 Ulrich Drepper * pthread.c (pthread_handle_sigrestart_rt): New function. Use this instead of pthread_handle_sigrestart if the signal is an RT signal. * signals.c: Handle passing through of sighandler arguments also for real-time signals. 1999-09-03 Andreas Schwab * ptfork.c (__fork): Renamed from fork and use __libc_fork. Add fork as weak alias. (__vfork): New function, alias vfork. * Versions: Export __fork, vfork, and __vfork in libpthread. 1999-08-23 Andreas Schwab * signals.c (pthread_sighandler): Add SIGCONTEXT_EXTRA_ARGS to call to signal handler. 1999-08-20 Ulrich Drepper * pthread.c (__pthread_reset_main_thread): Undo last change. (__pthread_kill_other_threads_np): Reset signal handlers for the signals we used in the thread implementation here. 1999-08-19 Ulrich Drepper * pthread.c (__pthread_reset_main_thread): Reset signal handlers for the signals we used in the thread implementation [PR libc/1234]. * Versions: Export __pthread_kill_other_threads_np from libpthread for GLIBC_2.1.2. * signals.c: Pass sigcontext through wrapper to the user function. 1999-08-01 Ulrich Drepper * Versions [ld.so] (GLIBC_2.0): Export __libc_internal_tsd_get and __libc_internal_tsd_set. 1999-07-29 Andreas Jaeger * manager.c: Remove inclusion of since it's not needed anymore. 1999-07-16 Andreas Jaeger * internals.h: Align _pthread_descr_struct to 32 bytes. Reported by Tim Hockin , close PR libc/1206. 1999-07-09 Ulrich Drepper * oldsemaphore.c (sem_compare_and_swap): Fix use of compare and swap function. 1999-07-09 Cristian Gafton * Makefile (libpthread-routines): Add oldsemaphore routine. * Versions: Add sem_destroy, sem_getvalue, sem_init, sem_post, sem_trywait, and sem_wait to GLIBC_2.1. * oldsemaphore.c: New file. * semaphore.c: Add default_symbol_versions for the changed functions. (__new_sem_init): Rename from sem_init. (__new_sem_post): Rename from sem_post. (__new_sem_wait): Rename from sem_wait. (__new_sem_trywait): Rename from sem_trywait. (__new_sem_getvalue): Rename from sem_getvalue. (__new_sem_destroy): Rename from sem_destroy. 1999-06-23 Robey Pointer * internals.h: Added p_nextlock entry to separate queueing for a lock from queueing for a CV (sometimes a thread queues on a lock to serialize removing itself from a CV queue). * pthread.c: Added p_nextlock to initializers. * spinlock.c: Changed to use p_nextlock instead of p_nextwaiting. 1999-07-09 Ulrich Drepper * manager.c (pthread_handle_create): Free mmap region after stack if clone failed. Patch by Kaz Kylheku . 1999-05-23 Andreas Jaeger * man/pthread_cond_init.man: Correct example. Reported by Tomas Berndtsson . * linuxthreads.texi (Condition Variables): Likewise. 1999-05-18 Jakub Jelinek * sysdeps/sparc/sparc64/pt-machine.h (__compare_and_swap): Use casx not cas, also successful casx returns the old value in rd and not the new value. 1999-05-16 Xavier Leroy * manager.c: If pthread_create() is given a NULL attribute and the thread manager runs with a realtime policy, set the scheduling policy of the newly created thread back to SCHED_OTHER. * manager.c: If the PTHREAD_INHERIT_SCHED attribute is given, initialize the schedpolicy field of new_thread->p_start_args to that of the calling thread. 1999-04-29 Ulrich Drepper * sysdeps/sparc/sparc64/pt-machine.h (__compare_and_swap): cas instruction does not allow memory element to use offset. 1999-04-28 Ulrich Drepper * manager.c (pthread_allocate_stack): Optimize initialization of new thread descriptor. * sysdeps/pthread/bits/libc-lock.h (__libc_lock_define_initialized): Don't use initializer since it is all zeroes. (__libc_once_define): Likewise. 1999-04-16 Andreas Jaeger * sysdeps/arm/Implies: Removed since cmpxchg/no-cmpxchg doesn't exist anymore. * sysdeps/i386/Implies: Likewise. * sysdeps/m68k/Implies: Likewise. * sysdeps/mips/Implies: Likewise. * sysdeps/powerpc/Implies: Likewise. * sysdeps/sparc/sparc32/Implies: Likewise. * sysdeps/sparc/sparc64/Implies: Likewise. 1999-04-15 Ulrich Drepper * sysdeps/alpha/bits/semaphore.h: Removed. * sysdeps/powerpc/bits/semaphore.h: Removed. * sysdeps/pthread/cmpxchg/bits/semaphore.h: Removed. * sysdeps/pthread/no-cmpxchg/bits/semaphore.h: Removed. * Makefile (headers): Remove bits/semaphore.h. * semaphore.h: Define _pthread_descr if necessary. Don't include limits.h. Define SEM_VALUE_MAX directly. Define SEM_FAILED. (sem_t): Protect element names with leading __. Add declarations for sem_close, sem_open, and sem_unlink. * semaphore.c: Adjust all functions for new element names. Define sem_close, sem_open, and sem_unlink. * Versions (libthread): Add sem_close, sem_open, and sem_unlink for GLIBC_2.1.1. * sysdeps/pthread/bits/pthreadtypes.h: Define _pthread_descr only if necessary. 1999-03-16 H.J. Lu * specific.c (pthread_key_delete): Check th->p_terminated to see if the thread is running. * Versions (__libc_internal_tsd_get, __libc_internal_tsd_set): Added to GLIBC_2.0 for libc.so. 1999-02-12 H.J. Lu * Versions (__libc_current_sigrtmin, __libc_current_sigrtmax, __libc_allocate_rtsig): Added to GLIBC_2.1. * internals.h (DEFAULT_SIG_RESTART): Removed. (DEFAULT_SIG_CANCEL): Removed. * pthread.c (init_rtsigs, __libc_current_sigrtmin, __libc_current_sigrtmax, __libc_allocate_rtsig): New functions. (__pthread_sig_restart, __pthread_sig_cancel, __pthread_sig_debug): Initialized. (pthread_initialize): Call init_rtsigs () to initialize real-time signals. 1999-02-03 H.J. Lu * manager.c (__pthread_manager): Do block __pthread_sig_debug. Don't restart the thread which sent REQ_DEBUG. (pthread_start_thread): Check if __pthread_sig_debug > 0 before debugging. * pthread.c (__pthread_initialize_manager): Suspend ourself after sending __pthread_sig_debug to gdb instead of __pthread_sig_cancel. 1999-01-24 H.J. Lu * manager.c (__pthread_manager): Delete __pthread_sig_debug from mask if __pthread_sig_debug > 0. (pthread_handle_create): Increment __pthread_handles_num. * manager.c (pthread_handle_create): Don't pass CLONE_PTRACE to clone. * pthread.c (__pthread_initialize_manager): Likewise. * pthread.c (pthread_initialize): Use __libc_allocate_rtsig (1) instead of __libc_allocate_rtsig (2). (__pthread_initialize_manager): Send __pthread_sig_debug to gdb instead of __pthread_sig_cancel. (pthread_handle_sigdebug): Fix comments. 1999-01-21 Ulrich Drepper * manager.c (pthread_allocate_stack): Set __pthread_nonstandard_stacks if user-specified stack is used. 1999-01-16 Ulrich Drepper * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add _LFS_ASYNCHRONOUS_IO, _LFS_LARGEFILE, _LFS64_LARGEFILE, and _LFS64_STDIO from Unix98. 1999-01-07 Xavier Leroy * pthread.c: Use a third signal __pthread_sig_debug distinct from __pthread_sig_cancel to notify gdb when a thread is created * manager.c: Likewise. * internals.h: Likewise. * signals.c: The implementation of sigwait(s) assumed that all signals in s have signal handlers already attached. This is not required by the standard, so make it work also if some of the signals have no handlers. 1999-01-05 Andreas Schwab * linuxthreads.texi: Remove pointers from first @node. Move old @node spec inside comment. 1998-12-31 Ulrich Drepper * sysdeps/pthread/bits/stdio-lock.h: Define _IO_lock_lock and _IO_lock_unlock. 1998-12-29 Ulrich Drepper * semaphore.c (sem_trywait): Don't forget to unlock the semaphore lock. Patch by Bernd Schmidt . 1998-12-21 Ulrich Drepper * manager.c: Threads now send __pthread_sig_cancel on termination. Change clone call and signal masks. * thread.c (pthread_handle_sigrestart): Remove special code for manager. (pthread_handle_sigcancel): In manager thread call __pthread_manager_sighandler. * sysdeps/i386/pt-machine.h (__compare_and_swap): Add memory clobber. * sysdeps/i386/i686/pt-machine.h: Likewise. Patches by Xavier Leroy. 1998-12-14 Ulrich Drepper * spinlock.c (__pthread_unlock): Don't crash if called for an untaken mutex. Reported by Ruslan V. Brushkoff . * Examples/ex6.c: Unbuffer stdout and reduce sleep time to reduce overall runtime. 1998-12-13 Ulrich Drepper * Examples/ex3.c: Wait until all threads are started before searching for the number to avoid race condition on very fast systems. 1998-12-08 Andreas Jaeger * sysdeps/pthread/pthread.h: Remove __pthread_setcanceltype declaration since it's not needed. * sysdeps/pthread/pthread.h: Move internal functions to ... * internals.h: ...here. 1998-12-02 H.J. Lu * pthread.c (__pthread_sig_restart): Initiliaze to 0 if SIGRTMIN is defined. (__pthread_sig_cancel): Likewise. 1998-12-01 Andreas Jaeger * wrapsyscall.c: Include for msync, for system and for tcdrain prototype. Correct msync declaration. 1998-11-29 Roland McGrath * sysdeps/pthread/bits/libc-tsd.h (__libc_tsd_define, __libc_tsd_get, __libc_tsd_set): New macros for new interface. * no-tsd.c: New file, provide uninitialized defns of __libc_internal_tsd_get and __libc_internal_tsd_set. * Makefile (routines): Add no-tsd. 1998-10-12 Roland McGrath * internals.h: Include , not . * sysdeps/pthread/bits/libc-lock.h (__libc_internal_tsd_get, __libc_internal_tsd_set): Move decls to ... * sysdeps/pthread/bits/libc-tsd.h: New file for __libc_internal_tsd_* declarations. * sysdeps/pthread/bits/libc-lock.h (__libc_internal_tsd_get, __libc_internal_tsd_set): Make these pointers to functions, not functions; remove #pragma weak decls for them. * specific.c (__libc_internal_tsd_get, __libc_internal_tsd_set): Define static functions and initialized pointers to them. 1998-11-18 Ulrich Drepper * Makefile (CFLAGS-mutex.c): Define as -D__NO_WEAK_PTHREAD_ALIASES. (CFLAGS-specific.c): Likewise. (CFLAGS-pthread.c): Likewise. (CFLAGS-ptfork.c): Likewise. (CFLAGS-cancel.c): Likewise. * sysdeps/pthread/bits/libc-lock.h: Don't mark __pthread_* functions as weak references if __NO_WEAK_PTHREAD_ALIASES is defined. * mutex.c (pthread_mutex_init): Define as strong symbol. (pthread_mutex_destroy): Likewise. (pthread_mutex_trylock): Likewise. (pthread_mutex_lock): Likewise. (pthread_mutex_unlock): Likewise. (pthread_mutexattr_init): Likewise. (pthread_mutexattr_destroy): Likewise. (pthread_once): Likewise. * ptfork.c (pthread_atfork): Likewise. * specific.c (pthread_key_create): Likewise. (pthread_setspecific): Likewise. (pthread_getspecific): Likewise. 1998-11-15 Andreas Schwab * linuxthreads.texi: Fix punctuation after xref. 1998-11-10 H.J. Lu * sysdeps/unix/sysv/linux/bits/local_lim.h: Undefine NR_OPEN if it is defined in . 1998-10-29 14:28 Ulrich Drepper * spinlock.h (__pthread_trylock): Define inline. (__pthread_lock): Add extra parameter to declaration. Declare using internal_function. (__pthread_unlock): Declare using internal_function. * spinlock.c (__pthread_lock): Add new parameter. Use it instead of local variable self. Avoid recomputing self. Define using internal_function. (__pthread_trylock): Remove. (__pthread_unlock): Define using internal_function. * cancel.c: Adjust for __pthread_lock interface change. Use already computed self value is possible. * condvar.c: Likewise. * join.c: Likewise. * manager.c: Likewise. * mutex.c: Likewise. * pthread.c: Likewise. * rwlock.c: Likewise. * semaphore.c: Likewise. * signals.c: Likewise. 1998-10-27 13:46 Ulrich Drepper * sysdeps/pthread/pthread.h (struct _pthread_cleanup_buffer): Prepend __ to field names of the struct. * sysdeps/pthread/bits/pthreadtypes.h (struct _pthread_fastlock): Likewise. (pthread_attr_t): Likewise. (pthread_cond_t): Likewise. (pthread_condattr_t): Likewise. (pthread_mutex_t): Likewise. (pthread_mutexattr_t): Likewise. (pthread_rwlock_t): Likewise. (pthread_rwlockattr_t): Likewise. * attr.c: Adjust for pthread.h and pthreadtypes.h change. * cancel.c: Likewise. * condvar.c: Likewise. * manager.c: Likewise. * mutex.c: Likewise. * pthread.c: Likewise. * ptlongjmp.c: Likewise. * rwlock.c: Likewise. * spinlock.c: Likewise. 1998-10-09 Ulrich Drepper * sysdeps/i386/pt-machine.h (get_eflags, set_eflags): Mark these also with PT_EI. * sysdeps/i386/i686/pt-machine.h: Remove unused inline definitions. * Makefile (libpthread-routines): Add pt-machine. * pt-machine.c: New file. * sysdeps/alpha/pt-machine.h: Define PT_EI as extern inline is not yet defined. Use PT_EI in extern inline definitions. * sysdeps/arm/pt-machine.h: Likewise. * sysdeps/i386/pt-machine.h: Likewise. * sysdeps/i386/i686/pt-machine.h: Likewise. * sysdeps/m68k/pt-machine.h: Likewise. * sysdeps/mips/pt-machine.h: Likewise. * sysdeps/powerpc/pt-machine.h: Likewise. * sysdeps/sparc/sparc32/pt-machine.h: Likewise. * sysdeps/sparc/sparc64/pt-machine.h: Likewise. 1998-10-02 Andreas Jaeger * semaphore.h: Include so that _pthread_descr is declared. 1998-09-15 David S. Miller * sysdeps/sparc/sparc32/pt-machine.h (INIT_THREAD_SELF): Add nr argument. * sysdeps/sparc/sparc64/pt-machine.h (INIT_THREAD_SELF): Likewise. 1998-09-12 14:24 -0400 Zack Weinberg * sysdeps/unix/sysv/linux/bits/sigthread.h: Add multiple inclusion guard. 1998-09-02 11:08 Andreas Schwab * signals.c (sigaction): Check that sig is less than NSIG to avoid array index overflow. 1998-09-06 10:56 Ulrich Drepper * sysdeps/pthread/semaphore.h: New file. 1998-09-06 09:08 Ulrich Drepper * sysdeps/pthread/bits/libc-lock.h (enum __libc_tsd_key_t): Add _LIBC_TSD_KEY_DL_ERROR. 1998-08-31 Ulrich Drepper * sysdeps/i386/i686/pt-machine.h (testandset): Add memory clobber. * sysdeps/i386/pt-machine.h: Likewise. Suggested by Roland McGrath. 1998-08-28 13:58 Ulrich Drepper * internals.h: Also define THREAD_GETMEM_NC and THREAD_SETMEM_NC to access thread data with non-constant offsets. * specific.c: Use THREAD_GETMEM_NC and THREAD_SETMEM_NC where necessary. * sysdeps/i386/useldt.h: Fix typo. Add THREAD_GETMEM_NC and THREAD_SETMEM_NC definitions. * sysdeps/sparc/sparc32/pt-machine.h: Define THREAD_GETMEM_NC and THREAD_SETMEM_NC. * sysdeps/sparc/sparc64/pt-machine.h: Likewise. 1998-08-26 15:46 Ulrich Drepper * internals.h: Define THREAD_GETMEM and THREAD_SETMEM to default if not already defined. (struct _pthread_descr_struct): Add p_self and p_nr field. * manager.c (__pthread_handles): Define second element to point to manager thread. (__pthread_handles_num): Initialize to 2. (__pthread_manager): Use INIT_THREAD_SELF with two arguments. (pthread_start_thread): Likewise. (pthread_handle_create): Start search for free slot at entry 2. Initialize new fields p_self and p_nr. Call __clone with CLONE_PTRACE if available. (pthread_free): Call FREE_THREAD_SELF if available. * pthread.c (__pthread_initial_thread): Initialize new fields. (__pthread_manager_thread): Likewise. (__pthread_initialize_manager): Call __clone with CLONE_PTRACE. * cancel.c: Use THREAD_GETMEM and THREAD_SETMEM to access the elements of the thread descriptor. * condvar.c: Likewise. * errno.c: Likewise. * join.c: Likewise. * manager.c: Likewise. * pthread.c: Likewise. * ptlongjmp.c: Likewise. * semaphore.c: Likewise. * signals.c: Likewise. * specific.c: Likewise. * spinlock.c: Likewise. * sysdeps/alpha/pt-machine.h (INIT_THREAD_SELF): Add extra parameter. * sysdeps/i386/useldt.h: New file. * sysdeps/i386/i686/pt-machine.h: Show how to use this file. * sysdeps/sparc/sparc32/pt-machine.h: Define THREAD_GETMEM and THREAD_SETMEM using __thread_self. * sysdeps/sparc/sparc64/pt-machine.h: Likewise. 1998-08-24 Geoff Keating * spinlock.c (__pthread_lock): Reset p_nextwaiting to NULL if it turned out that we didn't need to queue after all. 1998-08-22 Geoff Keating * sysdeps/powerpc/pt-machine.h: Remove testandset, it's not used and wastes space; correct types. 1998-08-08 11:18 H.J. Lu * signals.c (sigaction): Handle NULL argument. 1998-08-04 Ulrich Drepper * sysdeps/unix/sysv/linux/bits/sigthread.h: Use __sigset_t instead of sigset_t. 1998-08-02 Andreas Schwab * Makefile (linuxthreads-version): Extract correct number from Banner. 1998-07-29 Xavier Leroy * Banner: Bump version number to 0.8 * FAQ.html: Many updates, in particular w.r.t. debugging. * manager.c: Support for non-default stacksize for LinuxThreads-allocated stacks; don't use guard pages for stacks with default size, rely on rlimit(RLIMIT_STACK) instead (it's cheaper). * attr.c: Likewise. * cancel.c: Use __pthread_sig_cancel and __pthread_sig_restart everywhere instead of PTHREAD_SIG_CANCEL and PTHREAD_SIG_RESTART. * condvar.c: Likewise. * internals.h: Likewise. * restart.h: Likewise. * signals.c: Likewise. * pthread.c: Likewise; set rlimit(RLIMIT_STACK) as we need it. 1998-07-23 Andreas Schwab * weaks.c: Define pthread_mutexattr_[sg]ettype instead of __pthread_mutexattr_[sg]ettype. Add more weak aliases. * Versions: Put __pthread_mutexattr_settype under version GLIBC_2.0. Don't export __pthread_mutexattr_setkind_np and __pthread_mutexattr_gettype. 1998-07-23 Andreas Schwab * sysdeps/pthread/bits/libc-lock.h: Make __pthread_mutexattr_settype weak. Don't make __pthread_mutexattr_setkind_np weak. 1998-07-16 10:52 Ulrich Drepper * manager.c (pthread_handle_create): Check whether sched_setscheduler call can succeed here. * mutex.c: Define __pthread_mutexattr_settype and make __pthread_mutexattr_setkind_np an alias. Likewise for __pthread_mutexattr_gettype. 1998-07-15 11:00 -0400 Zack Weinberg * attr.c (pthread_attr_setschedpolicy): Don't check whether caller is root. 1998-07-14 19:38 Ulrich Drepper * sysdeps/pthread/bits/libc-lock.h: Define __libc_cleanup_end. 1998-07-11 Andreas Jaeger * Examples/ex6.c: Include for usleep. 1998-06-13 11:04 Andreas Schwab * Examples/ex4.c (main): Use exit, not pthread_exit. 1998-07-09 13:39 Ulrich Drepper * Versions: Add __pthread_mutexattr_gettype and __pthread_mutexattr_settype. * lockfile.c: Use __pthread_mutexattr_settype instead of __pthread_mutexattr_setkind_np. * mutex.c: Define __pthread_mutexattr_gettype and __pthread_mutexattr_settype. * weak.c: Likewise. * sysdeps/pthread/pthread.h: Declare __pthread_mutexattr_gettype and __pthread_mutexattr_settype. * sysdeps/pthread/bits/libc-lock.h (__libc_lock_init_recursive): Use __pthread_mutexattr_settype. 1998-07-08 22:26 Ulrich Drepper * Versions: Add pthread_mutexattr_gettype, pthread_mutexattr_settype. * mutex.c: Define weak alias pthread_mutexattr_gettype and pthread_mutexattr_settype. * sysdeps/pthread/pthread.h: Declare these functions. Move pthread_sigmask and pthread_kill declaration in separate header. * sysdeps/unix/sysv/linux/bits/sigthread.h: New file. 1998-07-07 15:20 Ulrich Drepper * Makefile: Add rules to compile and run tests. * Examples/ex1.c: Little changes to fix warnings. * Examples/ex2.c: Likewise. * Examples/ex3.c: Likewise. * Examples/ex4.c: Likewise. * Examples/ex5.c: Likewise. * Examples/ex6.c: New file. 1998-07-05 11:54 Ulrich Drepper * Versions: Add pthread_attr_init to GLIBC_2.1 version in libc. 1998-07-01 Andreas Jaeger * attr.c: Include . 1998-06-30 11:47 Ulrich Drepper * attr.c: Include errno.h. Use memcpy to copy sched_param. * internals.h: Include limits.h. * manager.c: Use memcpy to copy sched_param. * ptfork.c: Include errno.h. * pthread.c: Likewise. * semaphore.c: Likewise. * specific.c: Likewise. * spinlock.h: Likewise. * sysdeps/pthread/pthread.h: Include only allowed headers. Move type definition to ... * sysdeps/pthread/bits/pthreadtypes.h: ...here. New file. 1998-06-29 12:34 Ulrich Drepper * sysdeps/pthread/pthread.h: Use __PMT not __P for function pointers. * sysdeps/pthread/pthread.h: Define various PTHREAD_* symbols also as macros as demanded in POSIX.1, Annex C. 1998-06-29 12:29 Ulrich Drepper * internals.h (struct pthread_request): For free use pthread_t instead of pthread_descr. * join.c (pthread_join): Pass thread_id, not th to manager. (pthread_detach): Likewise. * manager.c (__pthread_manager): Except thread ID in FREE_REQ case. (pthread_exited): Remove detached queue code. (pthread_handle_free): Expect thread ID parameter and use it to validate the thread decsriptor. Don't use detached queue. Patches by Xavier Leroy. 1998-06-27 Andreas Schwab * libpthread.map: Export accept, longjmp, sigaction, siglongjmp, _IO_flockfile, _IO_ftrylockfile, _IO_funlockfile, __pthread_atfork, __pthread_key_create, __pthread_once. * internals.h: Doc fix. * pthread.c (__pthread_initialize): Define again. 1998-06-26 Ulrich Drepper * manager.c (pthread_exited): If thread is not detached put it on special list. (pthread_handle_free): If thread is not on list with living threads search on list with detached threads. * sysdeps/pthread/pthread.h (PTHREAD_RWLOCK_INITIALIZER): Correct for new definition of pthread_rwlock_t. * spinlock.c: Correct test whether to compile __pthread_compare_and_swap or not. 1998-06-25 19:27 Ulrich Drepper * attr.c: Finish user stack support. Change locking code to be safe in situations with different priorities. * cancel.c: Likewise. * condvar.c: Likewise. * internals.h: Likewise. * join.c: Likewise. * manager.c: Likewise. * mutex.c: Likewise. * pthread.c: Likewise. * ptlongjmp.c: Likewise. * queue.h: Likewise. * rwlock.c: Likewise. * semaphore.c: Likewise. * semaphore.h: Likewise. * signals.c: Likewise. * spinlock.c: Likewise. * spinlock.h: Likewise. * sysdeps/pthread/pthread.h: Likewise. Patches by Xavier Leroy. * sysdeps/i386/i686/pt-machine.h: New file. 1998-06-25 Ulrich Drepper * sysdeps/pthread/pthread.h: Make [sg]et_stacksize and [sg]et_stackaddr prototypes always available. * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_THREAD_ATTR_STACKSIZE and _POSIX_THREAD_ATTR_STACKADDR. 1998-06-24 Ulrich Drepper * manager.c (pthread_free): Undo patch from 980430. Reported by David Wragg . 1998-06-09 15:07 Ulrich Drepper * manager.c: Define __pthread_manager_adjust_prio and use it to increase priority when needed. * internals.h: Add prototype for __pthread_manager_adjust_prio. * mutex.c: Optimize mutexes to wake up only one thread. * pthread.c: Move PID of manager for global variable in structure element. Patches by Xavier Leroy. 1998-06-07 13:47 Ulrich Drepper * sysdeps/pthread/bits/libc-lock.h: Optimize cleanup handlers a bit. 1998-06-03 Andreas Jaeger * attr.c: Correct typo. 1998-05-01 Ulrich Drepper * manager.c (pthread_free): Unmap guard before the stack. Patch by Matthias Urlichs. 1998-04-30 Ulrich Drepper * manager.c (pthread_free): Detect already free child. Patch by Xavier Leroy, reported by Matthias Urlichs. 1998-04-23 Andreas Schwab * Makefile (linuxthreads-version): Renamed back from libpthread-version. 1998-04-21 Ulrich Drepper * ptlongjmp.c: Add prototypes for __libc_siglongjmp and __libc_longjmp. 1998-04-20 14:55 Ulrich Drepper * Makefile (libpthread-routines): Add ptlongjmp and spinlock. * internals.h: Add definitions for new spinlock implementation. * ptlongjmp.c: New file. * spinlock.c: New file. * spinlock.h (acquire): Don't reschedule using __sched_yield, use new function __pthread_acquire to prevent deadlocks with thread with different priorities. Patches by Xavier Leroy . 1998-03-16 Andreas Schwab * manager.c (__pthread_manager): Reduce first argument to select to include just the needed file descriptor. 1998-03-17 00:06 Ulrich Drepper * manager.c: Fix last patch which caused core dumps. * pthread.c: Correctly handle missing SIGRTMIN. 1998-03-15 Andreas Schwab * libpthread.map: Add __libc_internal_tsd_get and __libc_internal_tsd_set. Add missing cancelable functions. Export libc internal versions of the cancelable functions. 1998-03-13 16:51 Ulrich Drepper * weaks.c: Define pthread_attr_init as GLIBC_2.0 and GLIBC_2.1. 1998-03-13 00:46 Ulrich Drepper * attr.c: Implement pthread_attr_[gs]etguardsize, pthread_attr_[gs]setstackaddr, pthread_attr_[gs]etstacksize. Change pthread_attr_init to have two interfaces. * internals.h (struct _pthread_descr_struct): Add new fields for above functions. * libpthread.map: Add names in GLIBC_2.1 section. * manager.c (pthread_handle_create): Implement guardsize and user stack. (pthread_free): Likewise. * pthread.c (pthread_create): Add new interface for changed pthread_attr_t. * sysdeps/pthread/pthread.h: Add prototypes for new functions. * sysdeps/unix/sysv/linux/bits/local_lim.h: Add definition of PTHREAD_STACK_MIN. 1998-03-11 00:42 Wolfram Gloger * manager.c: Enable resetting of the thread scheduling policy to SCHED_OTHER when the parent thread has a different one. 1998-02-01 13:51 Ulrich Drepper * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_ASYNCHRONOUS_IO. * sysdeps/pthread/pthread.h: Define bits for Unix98 variants of mutexes. * mutex.c: Implement new mutex types. * internals.h: Include . * libpthread.map: Add __erno_location and __h_errno_location. * errno.c: Return pointer to variable actually in use. This might not be the one in the thread structure. * internals.h (struct _pthread_descr_struct): Add new fields p_errnop and p_h_errnop. * manager.c (__pthread_manager): Set p_errnop and p_h_errnop member of manager thread structure. (pthread_handle_create): Set p_errnop and p_h_errnop members for new thread. * pthread.c: Adapt initializer for thread structures. (__pthread_initial_thread): Set p_errnop and p_h_errnop member. (__pthread_reset_main_thread): Reset p_errnop and p_h_errnop of current thread to global variables. 1998-01-31 17:27 Ulrich Drepper * rwlock.c: New file. * Makefile (libpthread-routines): Add rwlock. * sysdeps/pthread/pthread.h: Define data structures and declare functions. * libpthread.map: Add new functions. 1997-12-18 13:50 Philip Blundell * sysdeps/arm/pt-machine.h: New file; add ARM support. * sysdeps/arm/Implies: likewise. * README: Document it. 1997-12-13 Andreas Schwab * signals.c: Remove unneeded initializer for sigwaited, saving a warning. 1997-04-11 01:18 Andreas Schwab * semaphore.c (sem_init): Set sem_spinlock only if available. 1997-12-04 01:48 Ulrich Drepper * mutex.c: Implement PTHREAD_MUTEX_CHECKERROR. * sysdeps/pthread/pthread.h: Define PTHREAD_MUTEX_CHECKERROR. * Makefile: Update from LinuxThreads 0.7. * internals.h. Likewise. * manager.c: Likewise. * mutex.c: Likewise. * pthread.c: Likewise. * signals.c: Likewise. * specific.c: Likewise. * Examples/ex3.c: Likewise. 1997-11-20 18:13 Ulrich Drepper * pthread.c (__pthread_reset_main_thread): Close pipe only if still open. 1997-10-29 05:38 Ulrich Drepper * wrapsyscall.c: Add socket functions which are also cancelation points. 1997-10-19 21:40 Wolfram Gloger * specific.c (__libc_internal_tsd_set, __libc_internal_tsd_get): New functions for fast thread specific data within libc. * internals.h: Add new array p_libc_specific to struct _pthread_descr_struct. * sysdeps/pthread/bits/libc-lock.h: Declare new functions. 1997-10-13 05:39 Ulrich Drepper * semaphore.h: Add __BEGIN_DECLS/__END_DECLS. Reported by Ralf Corsepius . 1997-08-29 03:05 Ulrich Drepper * internals.h (struct _pthread_descr_struct): Add definitions for two-level specific key handling. * manager.c (pthread_handle_create): Initialize specific memory array. * specific.c: Implement two-level key handling. * weaks.c: Don't provide dummy key handling. * sysdeps/pthread/bits/libc-lock.h: Typedef __libc_lock_t (no #define). Add definition of __libc_key_t. * sysdeps/unix/sysv/linux/bits/local_lim.h: Define PTHREAD_KEYS_MAX as 1024. Add definition of _POSIX_THREAD_DESTRUCTOR_ITERATIONS and PTHREAD_DESTRUCTOR_ITERATIONS. * manager.c (pthread_handle_create): Compare mmap result with MAP_FAILED. * ptfork.c: Rename to __pthread_atfork and make old name a weak alias. * sysdeps/pthread/bits/pthread.h: Add prototype for __pthread_atfork. 1997-08-22 19:04 Richard Henderson sysdeps/sparc -> sysdeps/sparc/sparc32 sysdeps/sparc64 -> sysdeps/sparc/sparc64 * internals.h: Change definition of THREAD_SELF to be an expression, not a statement that did a return. * sysdeps/alpha/pt-machine.h (THREAD_SELF): Update accordingly. * sysdeps/sparc/sparc32/pt-machine.h (THREAD_SELF, INIT_THREAD_SELF): Follow Solaris and use a "system reserved" register (%g6) to hold the thread descriptor. * sysdeps/sparc/sparc64/pt-machine.h: Likewise. 1997-08-03 00:09 Ulrich Drepper * mutex.c: Correct pthread_once. Patch by Xavier Leroy. * sysdeps/pthread/pthread.h: Add prototype for __pthread_once. * sysdeps/pthread/bits/pthread.h: Add macros for __libc_once. * semaphore.c: Include spinlock.h only when needed. * specific.c (__pthread_setsepcific, __pthread_getspecific): Reject keys for entries not in use. * weaks.c: Implement key handling functions for real. 1997-06-29 01:04 Richard Henderson Initial sparc64-linux support: * sysdeps/sparc64/Implies: New file. * sysdeps/sparc64/pt-machine.h: Likewise. 1997-06-29 00:48 Ulrich Drepper * semaphore.c: Include spinlock.h at correct place. Patch by HJ Lu. 1997-06-13 10:06 Richard Henderson The Great Bit File Move: * sysdeps/alpha/semaphorebits.h: -> .../bits/semaphore.h. * sysdeps/powerpc/semaphorebits.h: Likewise. * sysdeps/pthread/cmpxchg/semaphorebits.h: Likewise. * sysdeps/pthread/no-cmpxchg/semaphorebits.h: Likewise. * sysdeps/pthread/libc-lock.h: -> bits/ * sysdeps/pthread/stdio-lock.h: Likewise. * sysdeps/unix/sysv/linux/local_lim.h: Likewise. * sysdeps/unix/sysv/linux/posix_opt.h: Likewise. * semaphore.h: Likewise. * sysdeps/pthread/pthread.h: Likewise. * lockfile.c: -> . * semaphore.h: Likewise. * Makefile: (headers): foo.h -> bits/foo.h. * sysdeps/pthread/Makefile: Likewise. 1997-04-11 01:18 Andreas Schwab * semaphore.c (sem_init): Set sem_spinlock only if available. * sysdeps/m68k/pt-machine.h (testandset, __compare_and_swap): Fix asm constraints. 1997-04-09 03:00 Ulrich Drepper Update from LinuxThreads 0.6. * attr.c (pthread_attr_getdetachstate): Use __sched_get_priority_max and __sched_get_priority_min instead of names without `__'. * manager.c: Rewrite large parts to implement opaque pthread_t. * cancel.c: Adapt for opaque pthread_t type. * condvar.c: Likewise. * errno.c: Likewise. * join.c: Likewise. * mutex.c: Likewise. * pthread.c: Likewise. * signals.c: Likewise. * specific.c: Likewise. * restart.h: Likewise. * queue.h: Likewise. * Examples/ex3.c: Likewise. * Examples/ex4.c: Likewise. * sysdeps/pthread/pthread.h: Likewise. * pthread.c: Accumulate time for all threads in thread manager. * semaphore.c: Implement fallback implementation for architectures sometimes missing compare-exchange operations. * cancel.c (pthread_cancel): Validate handle argument. * join.c (pthread_join): Likewise. (pthread_detach): Likewise. * signals.c (pthread_kill): Likewise. * spinlock.h (acquire): Use __sched_yield not sched_yield. * queue.h (enqueue): Enqueue thread according to priority. * internals.c (struct pthread_start_args): New struct for passing args to cloning function. (struct _pthread): Rename to _pthread_descr_struct and adapt for opaque pthread_t. * Examples/Makefile (clean): Pass -f option to rm. * sysdeps/i386/pt-machine.h: Add check for compare-exchange instruction and define TEST_FOR_COMPARE_AND_SWAP. * sysdeps/i386/i486/pt-machine.h: Removed. * sysdeps/unix/sysv/linux/local_lim.h (PTHREAD_THREADS_MAX): Increase to 1024. 1997-04-04 16:38 Ulrich Drepper * restart.h (suspend): Clear p_signal before suspending. (suspend_with_cancellation): Likewise. Patch by Xavier Leroy . * weaks.c: Make __pthread_key_create return 1. * sysdeps/pthread/libc-lock.h: Define __libc_key_create, __libc_getspecific, __libc_setspecific, and __libc_key_t. * sysdeps/pthread/stdio-lock.h: Don't care for implementation not using libio. 1997-03-19 15:13 Miguel de Icaza * sysdeps/sparc/pt-machine (RELEASE): Fix. 1997-03-01 07:55 Geoff Keating * sysdeps/powerpc/Implies: Added. * sysdeps/powerpc/pt-machine.h: Added. * sysdeps/powerpc/semaphorebits.h: Added. 1997-01-22 01:22 Ulrich Drepper * pthread.c (__pthread_initial_thread): Correct initializer. (__pthread_manager_thread): Likewise. Reported by Andreas Jaeger. 1997-01-18 22:15 Richard Henderson Since sigset_t no longer fits in a register, we can't pass in the thread's initial mask so easily. Take this opportunity to simplify the clone implementation by only accepting a single void* argument. * manager.c (__pthread_manager): Put thread vitals in the thread struct instead of as arguments through clone. (pthread_start_thread): Look for them there. * internals.h (struct _pthread): Add p_initial_fn, p_initial_fn_arg, p_initial_mask. Fix __pthread_manager proto. * pthread.c (pthread_initialize_manager): Revise clone invocation.