glibc/linuxthreads/spinlock.c, branch cvs/ChangeLog

Update.

2002-08-29T10:42:30Z

2002-08-29 Jakub Jelinek * stdio-common/vfprintf.c (vfprintf): Add builtin_expect for string_malloced, it is unlikely to be set. Only call free with non-NULL workspace. * sysdeps/sparc/sparc32/sparcv9/Makefile (sysdep-CFLAGS): Use -mcpu=ultrasparc, not only tune for it. (ASFLAGS*): Set unconditionally. 2002-08-29 Jakub Jelinek * sysdeps/generic/readelflib.c (process_elf_file): Make loadaddr ElfW(Addr). Don't mask upper 32-bits and lower 12 bits off from p_vaddr/p_offset when computing loadaddr.

Update.

2002-06-21T05:32:43Z

2002-06-20 Ulrich Drepper * spinlock.c (wait_node_alloc): We cannot use compare-and-exchange. Unconditionally use the code using spinlock. Use __pthread_release to free a spinlock. (wait_node_free): Likewise. (__pthread_acquire, __pthread_release): Unconditionally define.

Update.

2001-08-30T02:13:26Z

2001-08-29 Ulrich Drepper * spinlock.c (__pthread_lock): Top max_count value with MAX_ADAPTIVE_SPIN_COUNT. * internals.h (MAX_ADAPTIVE_SPIN_COUNT): Define if not already done. * sysdeps/i386/i686/pt-machine.h (BUSY_WAIT_NOP): New macro to help P4.

Update.

2001-05-24T23:38:52Z

2001-05-24 Ulrich Drepper * spinlock.c (__pthread_lock) [HAS_COMPARE_AND_SWAP]: Before doing any serious work try once whether the lock is uncontested. Remove duplicate reading of __status before loop. Change suggested by Hans Boehm . * spinlock.h (__pthread_trylock): Remove need for oldstatus variable. (__pthread_alt_trylock): Likewise.

Update.

2001-05-24T07:25:43Z

2001-05-01 Kaz Kylheku Memory barrier overhaul following line by line inspection. * mutex.c (pthread_once): Missing memory barriers added. * pthread.c (__pthread_wait_for_restart_signal, __pthread_timedsuspend_new, __pthread_restart_new): Added memory barriers ``just in case'' and for documentary value. * spinlock.c (__pthread_release): New inline function for releasing spinlock, to complement __pthread_acquire. Includes memory barrier prior to assignment to spinlock, and __asm __volatile dance to prevent reordering or optimization of the spinlock access. * spinlock.c (__pthread_unlock, __pthread_alt_lock, __pthread_alt_timedlock, __pthread_alt_unlock, __pthread_compare_and_swap): Updated to use new __pthread_release instead of updating spinlock directly. * spinlock.c (__pthread_lock, __pthread_unlock, wait_node_alloc, wait_node_free, wait_node_dequeue, __pthread_alt_lock, __pthread_alt_timedlock, __pthread_alt_unlock, __pthread_acquire): Memory barrier overhaul. Lots of missing memory barriers added, a couple needless ones removed. * spinlock.c (__pthread_compare_and_swap): testandset optimization removed, just calls __pthread_acquire, which has the new read barrier in it before its testandset.

(__pthread_lock): Force lock->__status to be read from memory on every spin.

2001-02-19T18:47:27Z

Adjust for last change.

2001-01-28T16:39:07Z

2001-01-28 Andreas Jaeger * oldsemaphore.c (__old_sem_init): Adjust for last change. * sysdeps/pthread/bits/libc-lock.h: Likewise. * spinlock.c: Likewise.

Update.

2000-10-15T06:50:42Z

2000-10-14 Ulrich Drepper * math/libm-test.inc (frexp_test): Add L suffix also to parameters. (hypot_test): Likewise. * sysdeps/generic/printf_fphex.c: Compute width of decimal point string correctly. Handle padding correctly. * sysdeps/ia64/fpu/printf_fphex.c: Use sizeof in _itowa parameters correctly. * sysdeps/ieee754/ldbl-128/printf_fphex.c: Likewise. * sysdeps/ieee754/ldbl-96/printf_fphex.c: Likewise. 2000-10-12 Alan Modra * FAQ.in: Add --start-group and --end-group. 2000-10-12 Alan Modra * malloc/memusage.c: Conditionalize stack usage calculation on stack direction. 2000-10-12 Alan Modra * config.h.in: Add ASM_LINE_SEP. * configure.in: Add test for comment and line separators. * include/libc-symbols.h: Define and use ASM_LINE_SEP, and add tabs to placate some hppa assemblers. * sysdeps/hppa/sysdep.h: Likewise. * sysdeps/gnu/siglist.c: Insert \n and \t into inline asm. * sysdeps/unix/sysv/linux/errlist.c: Likewise. 2000-10-12 David Huggins-Daines * sysdeps/unix/sysv/linux/Makefile: Include in $(sysdep_headers). * sysdeps/unix/sysv/linux/bits/initspin.h: Dummy version for non-threaded platforms. 2000-10-12 David Huggins-Daines * configure.in: Add definitions for hppa. * elf/elf.h: Add PLABEL32 relocation for hppa ELF32, comments for IPLT and EPLT relocations. * shlib-versions: Version symbol definitions for hppa-linux. * sysdeps/unix/sysv/linux/configure.in: Define $arch_minimum_kernel for hppa. 2000-10-12 David Huggins-Daines * sysdeps/hppa/Makefile: New file. * sysdeps/hppa/Versions: New file. * sysdeps/hppa/setjmp.S: New file. * sysdeps/hppa/__longjmp.S: New file. * sysdeps/hppa/bits/setjmp.h: New file. * sysdeps/hppa/frame.h: New file. * sysdeps/hppa/add_n.s: Don't use %r19 (linkage table pointer). * sysdeps/hppa/sub_n.s: Likewise. * sysdeps/hppa/lshift.s: Likewise. * sysdeps/hppa/rshift.s: Likewise. * sysdeps/hppa/udiv_qrnnd.s: Likewise. * sysdeps/hppa/hppa1.1/addmul_1.s: Likewise. * sysdeps/hppa/hppa1.1/submul_1.s: Likewise. * sysdeps/hppa/hppa1.1/mul_1.s: Likewise. * sysdeps/hppa/hppa1.1/udiv_qrnnd.s: Likewise. * sysdeps/hppa/dl-machine.h: New file. * sysdeps/hppa/dl-fptr.c: New file (note that this is almost identical to the IA-64 one). * sysdeps/hppa/dl-lookupcfg.h: Likewise. * sysdeps/hppa/dl-symaddr.c: Likewise. * sysdeps/hppa/elf/initfini.c: New file. * sysdeps/hppa/elf/start.S: New file. * sysdeps/hppa/fpu/bits/fenv.h: New file. * sysdeps/hppa/fpu/fclrexcpt.c: New file. * sysdeps/hppa/fpu/fedisblxcpt.c: New file. * sysdeps/hppa/fpu/feenablxcpt.c: New file. * sysdeps/hppa/fpu/fegetenv.c: New file. * sysdeps/hppa/fpu/fegetexcept.c: New file. * sysdeps/hppa/fpu/fegetround.c: New file. * sysdeps/hppa/fpu/feholdexcpt.c: New file. * sysdeps/hppa/fpu/fesetenv.c: New file. * sysdeps/hppa/fpu/fesetround.c: New file. * sysdeps/hppa/fpu/feupdateenv.c: New file. * sysdeps/hppa/fpu/fegetexcptflg.c: New file. * sysdeps/hppa/fpu/fraiseexcpt.c: New file. * sysdeps/hppa/fpu/fsetexcptflg.c: New file. * sysdeps/hppa/fpu/ftestexcept.c: New file. * sysdeps/unix/sysv/linux/hppa/Makefile: New file. * sysdeps/unix/sysv/linux/hppa/Versions: New file. * sysdeps/unix/sysv/linux/hppa/syscalls.list: New file. * sysdeps/unix/sysv/linux/hppa/sysdep.c: New file. * sysdeps/unix/sysv/linux/hppa/sysdep.h: New file. * sysdeps/unix/sysv/linux/hppa/bits/fcntl.h: New file. * sysdeps/unix/sysv/linux/hppa/bits/ioctls.h: New file. * sysdeps/unix/sysv/linux/hppa/bits/mman.h: New file. * sysdeps/unix/sysv/linux/hppa/bits/sigaction.h: New file. * sysdeps/unix/sysv/linux/hppa/bits/signum.h: New file. * sysdeps/unix/sysv/linux/hppa/brk.c: New file. * sysdeps/unix/sysv/linux/hppa/clone.S: New file. * sysdeps/unix/sysv/linux/hppa/socket.S: New file. * sysdeps/unix/sysv/linux/hppa/syscall.S: New file. * sysdeps/unix/sysv/linux/hppa/setrlimit.c: New file. * sysdeps/unix/sysv/linux/hppa/getrlimit.c: New file. * sysdeps/unix/sysv/linux/hppa/getrlimit64.c: New file. * sysdeps/unix/sysv/linux/hppa/kernel_sigaction.h: New file. * sysdeps/unix/sysv/linux/hppa/kernel_stat.h: New file. * sysdeps/unix/sysv/linux/hppa/mmap.c: New file. * sysdeps/unix/sysv/linux/hppa/profil-counter.h: New file. * sysdeps/unix/sysv/linux/hppa/procfs.h: New file. * sysdeps/unix/sysv/linux/hppa/ucontext.h: New file. * sysdeps/unix/sysv/linux/hppa/umount.c: New file. 2000-10-12 Alan Modra * sysdeps/hppa/hppa1.1/Implies: New file. * sysdeps/hppa/memusage.h: New file.

Update.

2000-07-19T18:58:05Z

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.

Update.

2000-07-18T18:35:20Z

2000-07-18 Ulrich Drepper * spinlock.c (__pthread_alt_timedlock): Add back one of the removed thread_self calls.