From e4720b0e594f4599d0256dfb713ddd4d2281ddbc Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Wed, 15 Aug 2007 20:47:43 +0000 Subject: * sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept): Fix raising FE_UNDERFLOW on Niagara CPUs. * sysdeps/sparc/fpu/feholdexcpt.c (feholdexcept): Clear all exceptions. * sysdeps/unix/sysv/linux/sparc/internaltypes.h (sparc_new_sem, sparc_old_sem): New structs. * sysdeps/unix/sysv/linux/sparc/sparc32/sem_wait.c (__sem_wait_cleanup): New function. (__new_sem_wait): Use sparc_new_sem structure. Bump and afterwards decrease nwaiters. Register __sem_wait_cleanup as cleanup handler. Pass isem->private ^ FUTEX_PRIVATE_FLAG as last argument to lll_futex_wait. (__old_sem_wait): New function. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_wait.c: Include nptl/sysdeps/unix/sysv/linux/sparc version. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_timedwait.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_post.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c (__new_sem_trywait): Use sparc_old_sem structure. * sysdeps/unix/sysv/linux/sparc/sparc32/sem_timedwait.c (sem_timedwait): Use sparc_new_sem structure. Bump and afterwards decrease nwaiters. Register __sem_wait_cleanup as cleanup handler. Pass isem->private ^ FUTEX_PRIVATE_FLAG as last argument to lll_futex_timed_wait. * sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c (__new_sem_post): Use sparc_new_sem structure. Only wake if nwaiters > 0. Pass isem->private ^ FUTEX_PRIVATE_FLAG as last argument to lll_futex_wake. (__old_sem_post): New function. * sysdeps/unix/sysv/linux/sparc/sem_wait.c: New file. * sysdeps/unix/sysv/linux/sparc/sem_init.c: New file. * sysdeps/unix/sysv/linux/sparc/sem_timedwait.c: New file. * sysdeps/unix/sysv/linux/sparc/sem_post.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_init.c: Remove. * sysdeps/unix/sysv/linux/sparc/sparc32/sem_init.c: Remove. 2007-08-15 Jakub Jelinek * sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept): Fix raising FE_UNDERFLOW on Niagara CPUs. * sysdeps/sparc/fpu/feholdexcpt.c (feholdexcept): Clear all exceptions. --- nptl/sysdeps/unix/sysv/linux/sparc/sem_post.c | 69 +++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 nptl/sysdeps/unix/sysv/linux/sparc/sem_post.c (limited to 'nptl/sysdeps/unix/sysv/linux/sparc/sem_post.c') diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sem_post.c b/nptl/sysdeps/unix/sysv/linux/sparc/sem_post.c new file mode 100644 index 0000000000..95964d0744 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sem_post.c @@ -0,0 +1,69 @@ +/* sem_post -- post to a POSIX semaphore. SPARC version. + Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek , 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include +#include +#include +#include + +#include + +int +__new_sem_post (sem_t *sem) +{ + struct sparc_new_sem *isem = (struct sparc_new_sem *) sem; + + int nr = atomic_increment_val (&isem->value); + atomic_full_barrier (); + if (isem->nwaiters > 0) + { + int err = lll_futex_wake (&isem->value, 1, + isem->private ^ FUTEX_PRIVATE_FLAG); + if (__builtin_expect (err, 0) < 0) + { + __set_errno (-err); + return -1; + } + } + return 0; +} +versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1); + + +#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1) +int +attribute_compat_text_section +__old_sem_post (sem_t *sem) +{ + struct sparc_old_sem *isem = (struct sparc_old_sem *) sem; + + int nr = atomic_increment_val (&isem->value); + int err = lll_futex_wake (&isem->value, 1, + isem->private ^ FUTEX_PRIVATE_FLAG); + if (__builtin_expect (err, 0) < 0) + { + __set_errno (-err); + return -1; + } + return 0; +} +compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0); +#endif -- cgit 1.4.1