diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sparc')
26 files changed, 924 insertions, 130 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/Makefile b/nptl/sysdeps/unix/sysv/linux/sparc/Makefile new file mode 100644 index 0000000000..e98c9bd866 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/Makefile @@ -0,0 +1,2 @@ +# pull in __syscall_error routine +libpthread-routines += sysdep diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/bits/pthreadtypes.h b/nptl/sysdeps/unix/sysv/linux/sparc/bits/pthreadtypes.h index 3c5a289445..e734c1205e 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/bits/pthreadtypes.h +++ b/nptl/sysdeps/unix/sysv/linux/sparc/bits/pthreadtypes.h @@ -1,5 +1,5 @@ /* Machine-specific pthread type layouts. SPARC version. - Copyright (C) 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. @@ -58,11 +58,25 @@ typedef union } pthread_attr_t; +#if __WORDSIZE == 64 +typedef struct __pthread_internal_list +{ + struct __pthread_internal_list *__prev; + struct __pthread_internal_list *__next; +} __pthread_list_t; +#else +typedef struct __pthread_internal_slist +{ + struct __pthread_internal_slist *__next; +} __pthread_slist_t; +#endif + + /* Data structures for mutex handling. The structure of the attribute type is deliberately not exposed. */ typedef union { - struct + struct __pthread_mutex_s { int __lock; unsigned int __count; @@ -73,10 +87,18 @@ typedef union /* KIND must stay at this position in the structure to maintain binary compatibility. */ int __kind; -#if __WORDSIZE != 64 +#if __WORDSIZE == 64 + int __spins; + __pthread_list_t __list; +# define __PTHREAD_MUTEX_HAVE_PREV 1 +#else unsigned int __nusers; + __extension__ union + { + int __spins; + __pthread_slist_t __list; + }; #endif - int __spins; } __data; char __size[__SIZEOF_PTHREAD_MUTEX_T]; long int __align; diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h index 4626aec524..5013922a2f 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. @@ -30,6 +30,11 @@ #define FUTEX_WAKE 1 #define FUTEX_REQUEUE 3 #define FUTEX_CMP_REQUEUE 4 +#define FUTEX_WAKE_OP 5 +#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1) +#define FUTEX_LOCK_PI 6 +#define FUTEX_UNLOCK_PI 7 +#define FUTEX_TRYLOCK_PI 8 /* Initializer for compatibility lock. */ #define LLL_MUTEX_LOCK_INITIALIZER (0) @@ -76,15 +81,38 @@ INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ }) +#define lll_robust_mutex_dead(futexv) \ + do \ + { \ + int *__futexp = &(futexv); \ + atomic_or (__futexp, FUTEX_OWNER_DIED); \ + lll_futex_wake (__futexp, 1); \ + } \ + while (0) + +/* Returns non-zero if error happened, zero if success. */ #ifdef __sparc32_atomic_do_lock -#error SPARC < v9 does not support compare and swap which is essential for futex based locking +/* Avoid FUTEX_WAKE_OP if supporting pre-v9 CPUs. */ +# define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2) 1 +#else +# define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + \ + __ret = INTERNAL_SYSCALL (futex, __err, 6, \ + (futexp), FUTEX_WAKE_OP, (nr_wake), \ + (nr_wake2), (futexp2), \ + FUTEX_OP_CLEAR_WAKE_IF_GT_ONE); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ + }) #endif static inline int __attribute__ ((always_inline)) __lll_mutex_trylock (int *futex) { - return atomic_compare_and_exchange_val_acq (futex, 1, 0) != 0; + return atomic_compare_and_exchange_val_24_acq (futex, 1, 0) != 0; } #define lll_mutex_trylock(futex) __lll_mutex_trylock (&(futex)) @@ -92,47 +120,71 @@ static inline int __attribute__ ((always_inline)) __lll_mutex_cond_trylock (int *futex) { - return atomic_compare_and_exchange_val_acq (futex, 2, 0) != 0; + return atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0; } #define lll_mutex_cond_trylock(futex) __lll_mutex_cond_trylock (&(futex)) +static inline int +__attribute__ ((always_inline)) +__lll_robust_mutex_trylock (int *futex, int id) +{ + return atomic_compare_and_exchange_val_acq (futex, id, 0) != 0; +} +#define lll_robust_mutex_trylock(futex, id) \ + __lll_robust_mutex_trylock (&(futex), id) -extern void __lll_lock_wait (int *futex) attribute_hidden; +extern void __lll_lock_wait (int *futex) attribute_hidden; +extern int __lll_robust_lock_wait (int *futex) attribute_hidden; static inline void __attribute__ ((always_inline)) __lll_mutex_lock (int *futex) { - int val = atomic_compare_and_exchange_val_acq (futex, 1, 0); + int val = atomic_compare_and_exchange_val_24_acq (futex, 1, 0); if (__builtin_expect (val != 0, 0)) __lll_lock_wait (futex); } #define lll_mutex_lock(futex) __lll_mutex_lock (&(futex)) +static inline int +__attribute__ ((always_inline)) +__lll_robust_mutex_lock (int *futex, int id) +{ + int result = 0; + if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0) + result = __lll_robust_lock_wait (futex); + return result; +} +#define lll_robust_mutex_lock(futex, id) \ + __lll_robust_mutex_lock (&(futex), id) static inline void __attribute__ ((always_inline)) __lll_mutex_cond_lock (int *futex) { - int val = atomic_compare_and_exchange_val_acq (futex, 2, 0); + int val = atomic_compare_and_exchange_val_24_acq (futex, 2, 0); if (__builtin_expect (val != 0, 0)) __lll_lock_wait (futex); } #define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex)) +#define lll_robust_mutex_cond_lock(futex, id) \ + __lll_robust_mutex_lock (&(futex), (id) | FUTEX_WAITERS) + extern int __lll_timedlock_wait (int *futex, const struct timespec *) attribute_hidden; - +extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *) + attribute_hidden; static inline int __attribute__ ((always_inline)) __lll_mutex_timedlock (int *futex, const struct timespec *abstime) { - int val = atomic_compare_and_exchange_val_acq (futex, 1, 0); + int val = atomic_compare_and_exchange_val_24_acq (futex, 1, 0); int result = 0; if (__builtin_expect (val != 0, 0)) @@ -142,18 +194,39 @@ __lll_mutex_timedlock (int *futex, const struct timespec *abstime) #define lll_mutex_timedlock(futex, abstime) \ __lll_mutex_timedlock (&(futex), abstime) +static inline int +__attribute__ ((always_inline)) +__lll_robust_mutex_timedlock (int *futex, const struct timespec *abstime, + int id) +{ + int result = 0; + if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0) + result = __lll_robust_timedlock_wait (futex, abstime); + return result; +} +#define lll_robust_mutex_timedlock(futex, abstime, id) \ + __lll_robust_mutex_timedlock (&(futex), abstime, id) + #define lll_mutex_unlock(lock) \ ((void) ({ \ int *__futex = &(lock); \ - int __val = atomic_exchange_rel (__futex, 0); \ + int __val = atomic_exchange_24_rel (__futex, 0); \ if (__builtin_expect (__val > 1, 0)) \ lll_futex_wake (__futex, 1); \ })) +#define lll_robust_mutex_unlock(lock) \ + ((void) ({ \ + int *__futex = &(lock); \ + int __val = atomic_exchange_rel (__futex, 0); \ + if (__builtin_expect (__val & FUTEX_WAITERS, 0)) \ + lll_futex_wake (__futex, 1); \ + })) + #define lll_mutex_unlock_force(lock) \ ((void) ({ \ int *__futex = &(lock); \ - (void) atomic_exchange_rel (__futex, 0); \ + (void) atomic_exchange_24_rel (__futex, 0); \ lll_futex_wake (__futex, 1); \ })) diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S index da6197c00d..675a997e97 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S @@ -1,2 +1,9 @@ -#define RESET_PID -#include <sysdeps/unix/sysv/linux/sparc/sparc32/clone.S> +/* We want an #include_next, but we are the main source file. + So, #include ourselves and in that incarnation we can use #include_next. */ +#ifndef INCLUDED_SELF +# define INCLUDED_SELF +# include <clone.S> +#else +# define RESET_PID +# include_next <clone.S> +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c new file mode 100644 index 0000000000..a7611d6a88 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c @@ -0,0 +1,131 @@ +/* low level locking for pthread library. SPARC version. + Copyright (C) 2003, 2006 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 <sys/time.h> + + +void +__lll_lock_wait (int *futex) +{ + do + { + int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1); + if (oldval != 0) + lll_futex_wait (futex, 2); + } + while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0); +} + + +int +__lll_timedlock_wait (int *futex, const struct timespec *abstime) +{ + /* Reject invalid timeouts. */ + if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) + return EINVAL; + + do + { + struct timeval tv; + struct timespec rt; + + /* Get the current time. */ + (void) __gettimeofday (&tv, NULL); + + /* Compute relative timeout. */ + rt.tv_sec = abstime->tv_sec - tv.tv_sec; + rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000; + if (rt.tv_nsec < 0) + { + rt.tv_nsec += 1000000000; + --rt.tv_sec; + } + + /* Already timed out? */ + if (rt.tv_sec < 0) + return ETIMEDOUT; + + /* Wait. */ + int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1); + if (oldval != 0) + lll_futex_timed_wait (futex, 2, &rt); + } + while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0); + + return 0; +} + + +/* These don't get included in libc.so */ +#ifdef IS_IN_libpthread +int +lll_unlock_wake_cb (int *futex) +{ + int val = atomic_exchange_24_rel (futex, 0); + + if (__builtin_expect (val > 1, 0)) + lll_futex_wake (futex, 1); + + return 0; +} + + +int +__lll_timedwait_tid (int *tidp, const struct timespec *abstime) +{ + int tid; + + if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) + return EINVAL; + + /* Repeat until thread terminated. */ + while ((tid = *tidp) != 0) + { + struct timeval tv; + struct timespec rt; + + /* Get the current time. */ + (void) __gettimeofday (&tv, NULL); + + /* Compute relative timeout. */ + rt.tv_sec = abstime->tv_sec - tv.tv_sec; + rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000; + if (rt.tv_nsec < 0) + { + rt.tv_nsec += 1000000000; + --rt.tv_sec; + } + + /* Already timed out? */ + if (rt.tv_sec < 0) + return ETIMEDOUT; + + /* Wait until thread terminates. */ + if (lll_futex_timed_wait (tidp, tid, &rt) == -ETIMEDOUT) + return ETIMEDOUT; + } + + return 0; +} + +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pt-vfork.S b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pt-vfork.S index 55229c9e66..fb01242b53 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pt-vfork.S +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pt-vfork.S @@ -21,6 +21,7 @@ #include <tcb-offsets.h> .text + .globl __syscall_error ENTRY(__vfork) ld [%g7 + PID], %o5 sub %g0, %o5, %o4 @@ -28,15 +29,17 @@ ENTRY(__vfork) LOADSYSCALL(vfork) ta 0x10 - bcs,a __syscall_error_handler - st %o5, [%g7 + PID] - SYSCALL_ERROR_HANDLER - sub %o1, 1, %o1 + bcc 2f + mov %o7, %g1 + st %o5, [%g7 + PID] + call __syscall_error + mov %g1, %o7 +2: sub %o1, 1, %o1 andcc %o0, %o1, %o0 bne,a 1f st %o5, [%g7 + PID] 1: retl nop +END(__vfork) -PSEUDO_END (__vfork) weak_alias (__vfork, vfork) diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_init.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_init.c new file mode 100644 index 0000000000..bbd08d0041 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_init.c @@ -0,0 +1,62 @@ +/* Copyright (C) 2002, 2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + 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 "pthreadP.h" +#include <lowlevellock.h> + +struct sparc_pthread_barrier +{ + struct pthread_barrier b; + unsigned char left_lock; + unsigned char pshared; +}; + +int +pthread_barrier_init (barrier, attr, count) + pthread_barrier_t *barrier; + const pthread_barrierattr_t *attr; + unsigned int count; +{ + struct sparc_pthread_barrier *ibarrier; + + if (__builtin_expect (count == 0, 0)) + return EINVAL; + + struct pthread_barrierattr *iattr = (struct pthread_barrierattr *) attr; + if (iattr != NULL) + { + if (iattr->pshared != PTHREAD_PROCESS_PRIVATE + && __builtin_expect (iattr->pshared != PTHREAD_PROCESS_SHARED, 0)) + /* Invalid attribute. */ + return EINVAL; + } + + ibarrier = (struct sparc_pthread_barrier *) barrier; + + /* Initialize the individual fields. */ + ibarrier->b.lock = LLL_LOCK_INITIALIZER; + ibarrier->b.left = count; + ibarrier->b.init_count = count; + ibarrier->b.curr_event = 0; + ibarrier->left_lock = 0; + ibarrier->pshared = (iattr && iattr->pshared == PTHREAD_PROCESS_SHARED); + + return 0; +} diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_wait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_wait.c new file mode 100644 index 0000000000..4dfd11dcbe --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_wait.c @@ -0,0 +1,100 @@ +/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Martin Schwidefsky <schwidefsky@de.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 <pthreadP.h> + +struct sparc_pthread_barrier +{ + struct pthread_barrier b; + unsigned char left_lock; + unsigned char pshared; +}; + +/* Wait on barrier. */ +int +pthread_barrier_wait (barrier) + pthread_barrier_t *barrier; +{ + struct sparc_pthread_barrier *ibarrier + = (struct sparc_pthread_barrier *) barrier; + int result = 0; + + /* Make sure we are alone. */ + lll_lock (ibarrier->b.lock); + + /* One more arrival. */ + --ibarrier->b.left; + + /* Are these all? */ + if (ibarrier->b.left == 0) + { + /* Yes. Increment the event counter to avoid invalid wake-ups and + tell the current waiters that it is their turn. */ + ++ibarrier->b.curr_event; + + /* Wake up everybody. */ + lll_futex_wake (&ibarrier->b.curr_event, INT_MAX); + + /* This is the thread which finished the serialization. */ + result = PTHREAD_BARRIER_SERIAL_THREAD; + } + else + { + /* The number of the event we are waiting for. The barrier's event + number must be bumped before we continue. */ + unsigned int event = ibarrier->b.curr_event; + + /* Before suspending, make the barrier available to others. */ + lll_unlock (ibarrier->b.lock); + + /* Wait for the event counter of the barrier to change. */ + do + lll_futex_wait (&ibarrier->b.curr_event, event); + while (event == ibarrier->b.curr_event); + } + + /* Make sure the init_count is stored locally or in a register. */ + unsigned int init_count = ibarrier->b.init_count; + + /* If this was the last woken thread, unlock. */ + if (__atomic_is_v9 || ibarrier->pshared == 0) + { + if (atomic_increment_val (&ibarrier->b.left) == init_count) + /* We are done. */ + lll_unlock (ibarrier->b.lock); + } + else + { + unsigned int left; + /* Slightly more complicated. On pre-v9 CPUs, atomic_increment_val + is only atomic for threads within the same process, not for + multiple processes. */ + __sparc32_atomic_do_lock24 (&ibarrier->left_lock); + left = ++ibarrier->b.left; + __sparc32_atomic_do_unlock24 (&ibarrier->left_lock); + if (left == init_count) + /* We are done. */ + lll_unlock (ibarrier->b.lock); + } + + return result; +} diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_init.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_init.c new file mode 100644 index 0000000000..dffd8c7efa --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_init.c @@ -0,0 +1,63 @@ +/* Copyright (C) 2002, 2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + 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 <semaphore.h> +#include <lowlevellock.h> +#include <shlib-compat.h> +#include "semaphoreP.h" + +struct sparc_sem +{ + struct sem s; + unsigned char lock; +}; + + +int +__new_sem_init (sem, pshared, value) + sem_t *sem; + int pshared; + unsigned int value; +{ + /* Parameter sanity check. */ + if (__builtin_expect (value > SEM_VALUE_MAX, 0)) + { + __set_errno (EINVAL); + return -1; + } + + /* Map to the internal type. */ + struct sparc_sem *isem = (struct sparc_sem *) sem; + + /* Use the value the user provided. */ + isem->s.count = value; + + isem->lock = 0; + + /* We can completely ignore the PSHARED parameter since inter-process + use needs no special preparation. */ + + return 0; +} +versioned_symbol (libpthread, __new_sem_init, sem_init, GLIBC_2_1); +#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) +strong_alias (__new_sem_init, __old_sem_init) +compat_symbol (libpthread, __old_sem_init, sem_init, GLIBC_2_0); +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c new file mode 100644 index 0000000000..be1cc60b11 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c @@ -0,0 +1,54 @@ +/* sem_post -- post to a POSIX semaphore. SPARC version. + Copyright (C) 2003, 2004, 2006 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) +{ + int *futex = (int *) sem, nr; + + if (__atomic_is_v9) + nr = atomic_increment_val (futex); + else + { + __sparc32_atomic_do_lock24 (futex + 1); + nr = ++*futex; + __sparc32_atomic_do_unlock24 (futex + 1); + } + int err = lll_futex_wake (futex, nr); + 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) +strong_alias (__new_sem_post, __old_sem_post) +compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0); +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_timedwait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_timedwait.c new file mode 100644 index 0000000000..efcc9e9aa8 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_timedwait.c @@ -0,0 +1,117 @@ +/* sem_timedwait -- wait on a semaphore. SPARC version. + Copyright (C) 2003, 2006 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> + +#include <pthreadP.h> +#include <shlib-compat.h> + + +int +sem_timedwait (sem_t *sem, const struct timespec *abstime) +{ + /* First check for cancellation. */ + CANCELLATION_P (THREAD_SELF); + + int *futex = (int *) sem; + int val; + int err; + + if (*futex > 0) + { + if (__atomic_is_v9) + val = atomic_decrement_if_positive (futex); + else + { + __sparc32_atomic_do_lock24 (futex + 1); + val = *futex; + if (val > 0) + *futex = val - 1; + __sparc32_atomic_do_unlock24 (futex + 1); + } + if (val > 0) + return 0; + } + + err = -EINVAL; + if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) + goto error_return; + + do + { + struct timeval tv; + struct timespec rt; + int sec, nsec; + + /* Get the current time. */ + __gettimeofday (&tv, NULL); + + /* Compute relative timeout. */ + sec = abstime->tv_sec - tv.tv_sec; + nsec = abstime->tv_nsec - tv.tv_usec * 1000; + if (nsec < 0) + { + nsec += 1000000000; + --sec; + } + + /* Already timed out? */ + err = -ETIMEDOUT; + if (sec < 0) + goto error_return; + + /* Do wait. */ + rt.tv_sec = sec; + rt.tv_nsec = nsec; + + /* Enable asynchronous cancellation. Required by the standard. */ + int oldtype = __pthread_enable_asynccancel (); + + err = lll_futex_timed_wait (futex, 0, &rt); + + /* Disable asynchronous cancellation. */ + __pthread_disable_asynccancel (oldtype); + + if (err != 0 && err != -EWOULDBLOCK) + goto error_return; + + if (__atomic_is_v9) + val = atomic_decrement_if_positive (futex); + else + { + __sparc32_atomic_do_lock24 (futex + 1); + val = *futex; + if (val > 0) + *futex = val - 1; + __sparc32_atomic_do_unlock24 (futex + 1); + } + } + while (val <= 0); + + return 0; + + error_return: + __set_errno (-err); + return -1; +} diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c new file mode 100644 index 0000000000..429494e257 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c @@ -0,0 +1,59 @@ +/* sem_trywait -- wait on a semaphore. SPARC version. + Copyright (C) 2003, 2006 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> + +#include <shlib-compat.h> + + +int +__new_sem_trywait (sem_t *sem) +{ + int *futex = (int *) sem; + int val; + + if (*futex > 0) + { + if (__atomic_is_v9) + val = atomic_decrement_if_positive (futex); + else + { + __sparc32_atomic_do_lock24 (futex + 1); + val = *futex; + if (val > 0) + *futex = val - 1; + __sparc32_atomic_do_unlock24 (futex + 1); + } + if (val > 0) + return 0; + } + + __set_errno (EAGAIN); + return -1; +} +versioned_symbol (libpthread, __new_sem_trywait, sem_trywait, GLIBC_2_1); +#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1) +strong_alias (__new_sem_trywait, __old_sem_trywait) +compat_symbol (libpthread, __old_sem_trywait, sem_trywait, GLIBC_2_0); +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_wait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_wait.c new file mode 100644 index 0000000000..d9fcdcd4ee --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_wait.c @@ -0,0 +1,74 @@ +/* sem_wait -- wait on a semaphore. SPARC version. + Copyright (C) 2003, 2006 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> + +#include <pthreadP.h> +#include <shlib-compat.h> + + +int +__new_sem_wait (sem_t *sem) +{ + /* First check for cancellation. */ + CANCELLATION_P (THREAD_SELF); + + int *futex = (int *) sem; + int err; + + do + { + int val; + if (__atomic_is_v9) + val = atomic_decrement_if_positive (futex); + else + { + __sparc32_atomic_do_lock24 (futex + 1); + val = *futex; + if (val > 0) + *futex = val - 1; + __sparc32_atomic_do_unlock24 (futex + 1); + } + if (val > 0) + return 0; + + /* Enable asynchronous cancellation. Required by the standard. */ + int oldtype = __pthread_enable_asynccancel (); + + err = lll_futex_wait (futex, 0); + + /* Disable asynchronous cancellation. */ + __pthread_disable_asynccancel (oldtype); + } + while (err == 0 || err == -EWOULDBLOCK); + + __set_errno (-err); + return -1; +} + +versioned_symbol (libpthread, __new_sem_wait, sem_wait, GLIBC_2_1); +#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1) +strong_alias (__new_sem_wait, __old_sem_wait) +compat_symbol (libpthread, __old_sem_wait, sem_wait, GLIBC_2_0); +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_init.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_init.c new file mode 100644 index 0000000000..b2b842336e --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_init.c @@ -0,0 +1 @@ +#include "../../../../../../../pthread_barrier_init.c" diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_wait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_wait.c new file mode 100644 index 0000000000..7613863bba --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_wait.c @@ -0,0 +1 @@ +#include "../../../../../../pthread/pthread_barrier_wait.c" diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_init.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_init.c new file mode 100644 index 0000000000..b2ebc4cbb5 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_init.c @@ -0,0 +1 @@ +#include "../../../../../../../sem_init.c" diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_post.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_post.c new file mode 100644 index 0000000000..4a6eac88f5 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_post.c @@ -0,0 +1 @@ +#include "../../../sem_post.c" diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_timedwait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_timedwait.c new file mode 100644 index 0000000000..b2526db02c --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_timedwait.c @@ -0,0 +1 @@ +#include "../../../sem_timedwait.c" diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_trywait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_trywait.c new file mode 100644 index 0000000000..aae46f725e --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_trywait.c @@ -0,0 +1 @@ +#include "../../../sem_trywait.c" diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_wait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_wait.c new file mode 100644 index 0000000000..31157f636f --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_wait.c @@ -0,0 +1 @@ +#include "../../../sem_wait.c" diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h index 5edf4b3772..f0349906b2 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. @@ -26,55 +26,48 @@ #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt # undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -ENTRY(name) \ - ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1; \ - cmp %g1, 0; \ - bne 1f; \ -.type __##syscall_name##_nocancel,@function; \ -.globl __##syscall_name##_nocancel; \ -__##syscall_name##_nocancel: \ - mov SYS_ify(syscall_name), %g1; \ - ta 0x10; \ - bcs __syscall_error_handler; \ - nop; \ -.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - .subsection 2; \ - cfi_startproc; \ -1: save %sp, -96, %sp; \ - cfi_def_cfa_register (%fp); \ - cfi_window_save; \ - cfi_register (%o7, %i7); \ - CENABLE; \ - nop; \ - mov %o0, %l0; \ - COPY_ARGS_##args \ - mov SYS_ify(syscall_name), %g1; \ - ta 0x10; \ - bcs __syscall_error_handler2; \ - mov %o0, %l1; \ - CDISABLE; \ - mov %l0, %o0; \ - jmpl %i7 + 8, %g0; \ - restore %g0, %l1, %o0; \ - cfi_endproc; \ - .previous; \ - SYSCALL_ERROR_HANDLER \ - SYSCALL_ERROR_HANDLER2 +# define PSEUDO(name, syscall_name, args) \ + .text; \ + .globl __syscall_error; \ +ENTRY(name) \ + ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1;\ + cmp %g1, 0; \ + bne 1f; \ +.type __##syscall_name##_nocancel,@function; \ +.globl __##syscall_name##_nocancel; \ +__##syscall_name##_nocancel: \ + mov SYS_ify(syscall_name), %g1; \ + ta 0x10; \ + bcc 8f; \ + mov %o7, %g1; \ + call __syscall_error; \ + mov %g1, %o7; \ +8: jmpl %o7 + 8, %g0; \ + nop; \ +.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;\ +1: save %sp, -96, %sp; \ + cfi_def_cfa_register(%fp); \ + cfi_window_save; \ + cfi_register(%o7, %i7); \ + CENABLE; \ + nop; \ + mov %o0, %l0; \ + COPY_ARGS_##args \ + mov SYS_ify(syscall_name), %g1; \ + ta 0x10; \ + bcc 1f; \ + mov %o0, %l1; \ + CDISABLE; \ + mov %l0, %o0; \ + call __syscall_error; \ + mov %l1, %o0; \ + b 2f; \ + mov -1, %l1; \ +1: CDISABLE; \ + mov %l0, %o0; \ +2: jmpl %i7 + 8, %g0; \ + restore %g0, %l1, %o0; -#define SYSCALL_ERROR_HANDLER2 \ -SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler2) \ - .global __errno_location; \ - .type __errno_location,@function; \ - CDISABLE; \ - mov %l0, %o0; \ - call __errno_location; \ - nop; \ - st %l1, [%o0]; \ - jmpl %i7 + 8, %g0; \ - restore %g0, -1, %o0; \ - .previous; # ifdef IS_IN_libpthread # define CENABLE call __pthread_enable_asynccancel @@ -111,3 +104,9 @@ SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler2) \ # define NO_CANCELLATION 1 #endif + +#ifndef __ASSEMBLER__ +# define RTLD_SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S index 7229608142..a8e4dd5a43 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S @@ -21,6 +21,7 @@ #include <tcb-offsets.h> .text + .globl __syscall_error ENTRY(__vfork) ld [%g7 + PID], %o5 cmp %o5, 0 @@ -31,16 +32,18 @@ ENTRY(__vfork) LOADSYSCALL(vfork) ta 0x10 - bcs,a __syscall_error_handler - st %o5, [%g7 + PID] - SYSCALL_ERROR_HANDLER - sub %o1, 1, %o1 + bcc 2f + mov %o7, %g1 + st %o5, [%g7 + PID] + call __syscall_error + mov %g1, %o7 +2: sub %o1, 1, %o1 andcc %o0, %o1, %o0 bne,a 1f st %o5, [%g7 + PID] 1: retl nop +END(__vfork) -PSEUDO_END (__vfork) libc_hidden_def (__vfork) weak_alias (__vfork, vfork) diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S b/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S new file mode 100644 index 0000000000..675a997e97 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S @@ -0,0 +1,9 @@ +/* We want an #include_next, but we are the main source file. + So, #include ourselves and in that incarnation we can use #include_next. */ +#ifndef INCLUDED_SELF +# define INCLUDED_SELF +# include <clone.S> +#else +# define RESET_PID +# include_next <clone.S> +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/pt-vfork.S b/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/pt-vfork.S index e9018b2e99..8941043c3a 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/pt-vfork.S +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/pt-vfork.S @@ -21,6 +21,7 @@ #include <tcb-offsets.h> .text + .globl __syscall_error ENTRY(__vfork) ld [%g7 + PID], %o5 sub %g0, %o5, %o4 @@ -28,15 +29,17 @@ ENTRY(__vfork) LOADSYSCALL(vfork) ta 0x6d - bcs,a,pn %xcc, __syscall_error_handler - st %o5, [%g7 + PID] - SYSCALL_ERROR_HANDLER - sub %o1, 1, %o1 + bcc,pt %xcc, 2f + mov %o7, %g1 + st %o5, [%g7 + PID] + call __syscall_error + mov %g1, %o7 +2: sub %o1, 1, %o1 andcc %o0, %o1, %o0 bne,a,pt %icc, 1f st %o5, [%g7 + PID] 1: retl nop +END(__vfork) -PSEUDO_END (__vfork) weak_alias (__vfork, vfork) diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h index d8c65aeffd..2c76d01715 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. @@ -26,49 +26,46 @@ #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt # undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -ENTRY(name) \ - ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1; \ - brnz,pn %g1, 1f; \ -.type __##syscall_name##_nocancel,@function; \ -.globl __##syscall_name##_nocancel; \ -__##syscall_name##_nocancel: \ - mov SYS_ify(syscall_name), %g1; \ - ta 0x6d; \ - bcs,pn %xcc, __syscall_error_handler; \ - nop; \ -.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - .subsection 2; \ -1: save %sp, -192, %sp; \ - CENABLE; \ - nop; \ - mov %o0, %l0; \ - COPY_ARGS_##args \ - mov SYS_ify(syscall_name), %g1; \ - ta 0x6d; \ - bcs,pn %xcc, __syscall_error_handler2; \ - mov %o0, %l1; \ - CDISABLE; \ - mov %l0, %o0; \ - jmpl %i7 + 8, %g0; \ - restore %g0, %l1, %o0; \ - .previous; \ - SYSCALL_ERROR_HANDLER \ - SYSCALL_ERROR_HANDLER2 - -#define SYSCALL_ERROR_HANDLER2 \ -SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler2) \ - .global __errno_location; \ - .type __errno_location,@function; \ - CDISABLE; \ - mov %l0, %o0; \ - call __errno_location; \ - nop; \ - st %l1, [%o0]; \ - jmpl %i7 + 8, %g0; \ - restore %g0, -1, %o0; \ - .previous; +# define PSEUDO(name, syscall_name, args) \ + .text; \ + .globl __syscall_error; \ +ENTRY(name) \ + ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1;\ + brnz,pn %g1, 1f; \ +.type __##syscall_name##_nocancel,@function; \ +.globl __##syscall_name##_nocancel; \ +__##syscall_name##_nocancel: \ + mov SYS_ify(syscall_name), %g1; \ + ta 0x6d; \ + bcc,pt %xcc, 8f; \ + mov %o7, %g1; \ + call __syscall_error; \ + mov %g1, %o7; \ +8: jmpl %o7 + 8, %g0; \ + nop; \ +.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;\ +1: save %sp, -192, %sp; \ + cfi_def_cfa_register(%fp); \ + cfi_window_save; \ + cfi_register(%o7, %i7); \ + CENABLE; \ + nop; \ + mov %o0, %l0; \ + COPY_ARGS_##args \ + mov SYS_ify(syscall_name), %g1; \ + ta 0x6d; \ + bcc,pt %xcc, 1f; \ + mov %o0, %l1; \ + CDISABLE; \ + mov %l0, %o0; \ + call __syscall_error; \ + mov %l1, %o0; \ + ba,pt %xcc, 2f; \ + mov -1, %l1; \ +1: CDISABLE; \ + mov %l0, %o0; \ +2: jmpl %i7 + 8, %g0; \ + restore %g0, %l1, %o0; # ifdef IS_IN_libpthread # define CENABLE call __pthread_enable_asynccancel @@ -105,3 +102,9 @@ SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler2) \ # define NO_CANCELLATION 1 #endif + +#ifndef __ASSEMBLER__ +# define RTLD_SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S b/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S index d6b2455d43..5597574304 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S +++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S @@ -21,6 +21,7 @@ #include <tcb-offsets.h> .text + .globl __syscall_error ENTRY(__vfork) ld [%g7 + PID], %o5 sethi %hi(0x80000000), %o3 @@ -31,16 +32,18 @@ ENTRY(__vfork) LOADSYSCALL(vfork) ta 0x6d - bcs,a,pn %xcc, __syscall_error_handler - st %o5, [%g7 + PID] - SYSCALL_ERROR_HANDLER - sub %o1, 1, %o1 + bcc,pt %xcc, 2f + mov %o7, %g1 + st %o5, [%g7 + PID] + call __syscall_error + mov %g1, %o7 +2: sub %o1, 1, %o1 andcc %o0, %o1, %o0 bne,a,pt %icc, 1f st %o5, [%g7 + PID] 1: retl nop +END(__vfork) -PSEUDO_END (__vfork) libc_hidden_def (__vfork) weak_alias (__vfork, vfork) |