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* 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 <jakub@redhat.com> * sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept): Fix raising FE_UNDERFLOW on Niagara CPUs. * sysdeps/sparc/fpu/feholdexcpt.c (feholdexcept): Clear all exceptions.
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Jakub Jelinek
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -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 <jakub@redhat.com>, 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 <errno.h> | ||
| #include <sysdep.h> | ||
| #include <lowlevellock.h> | ||
| #include <internaltypes.h> | ||
| #include <semaphore.h> | ||
|
|
||
| #include <shlib-compat.h> | ||
|
|
||
| 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); | ||
|
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||
|
|
||
| #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 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| /* sem_timedwait -- wait on a semaphore. Generic futex-using version. | ||
| Copyright (C) 2003, 2007 Free Software Foundation, Inc. | ||
| This file is part of the GNU C Library. | ||
| Contributed by Paul Mackerras <paulus@au.ibm.com>, 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 <errno.h> | ||
| #include <sysdep.h> | ||
| #include <lowlevellock.h> | ||
| #include <internaltypes.h> | ||
| #include <semaphore.h> | ||
|
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| #include <pthreadP.h> | ||
| #include <shlib-compat.h> | ||
|
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| extern void __sem_wait_cleanup (void *arg) attribute_hidden; | ||
|
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| int | ||
| sem_timedwait (sem_t *sem, const struct timespec *abstime) | ||
| { | ||
| struct sparc_new_sem *isem = (struct sparc_new_sem *) sem; | ||
| int err; | ||
|
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| if (atomic_decrement_if_positive (&isem->value) > 0) | ||
| return 0; | ||
|
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| if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) | ||
| { | ||
| __set_errno (EINVAL); | ||
| return -1; | ||
| } | ||
|
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| atomic_increment (&isem->nwaiters); | ||
|
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| pthread_cleanup_push (__sem_wait_cleanup, isem); | ||
|
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| while (1) | ||
| { | ||
| struct timeval tv; | ||
| struct timespec rt; | ||
| int sec, nsec; | ||
|
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| /* Get the current time. */ | ||
| __gettimeofday (&tv, NULL); | ||
|
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| /* Compute relative timeout. */ | ||
| sec = abstime->tv_sec - tv.tv_sec; | ||
| nsec = abstime->tv_nsec - tv.tv_usec * 1000; | ||
| if (nsec < 0) | ||
| { | ||
| nsec += 1000000000; | ||
| --sec; | ||
| } | ||
|
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||
| /* Already timed out? */ | ||
| err = -ETIMEDOUT; | ||
| if (sec < 0) | ||
| { | ||
| __set_errno (ETIMEDOUT); | ||
| err = -1; | ||
| break; | ||
| } | ||
|
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| /* Do wait. */ | ||
| rt.tv_sec = sec; | ||
| rt.tv_nsec = nsec; | ||
|
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| /* Enable asynchronous cancellation. Required by the standard. */ | ||
| int oldtype = __pthread_enable_asynccancel (); | ||
|
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| err = lll_futex_timed_wait (&isem->value, 0, &rt, | ||
| isem->private ^ FUTEX_PRIVATE_FLAG); | ||
|
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| /* Disable asynchronous cancellation. */ | ||
| __pthread_disable_asynccancel (oldtype); | ||
|
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| if (err != 0 && err != -EWOULDBLOCK) | ||
| { | ||
| __set_errno (-err); | ||
| err = -1; | ||
| break; | ||
| } | ||
|
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| if (atomic_decrement_if_positive (&isem->value) > 0) | ||
| { | ||
| err = 0; | ||
| break; | ||
| } | ||
| } | ||
|
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| pthread_cleanup_pop (0); | ||
|
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| atomic_decrement (&isem->nwaiters); | ||
|
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| return err; | ||
| } |
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