2006-03-02 Lior Balkohen <balkohen@gmail.com>
* sysdeps/unix/sysv/linux/mips/nptl/bits/pthreadtypes.h (__pthread_list_t, __pthread_slist_t): New typedefs. (pthread_mutex_t): Replace __next and __prev fields with __list. * sysdeps/unix/sysv/linux/mips/nptl/lowlevellock.h (FUTEX_WAKE_OP, FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define. (lll_futex_wake_unlock): Define. (lll_robust_mutex_dead, lll_robust_mutex_trylock, lll_robust_mutex_lock, lll_robust_mutex_cond_lock, lll_robust_mutex_timedlock, lll_robust_mutex_unlock): New macros. (__lll_robust_lock_wait, __lll_robust_timedlock_wait): New prototypes. * sysdeps/unix/sysv/linux/mips/nptl/pt-vfork.S: Use correct path to vfork.S. * sysdeps/unix/sysv/linux/mips/nptl/vfork.S: Likewise.
This commit is contained in:
Daniel Jacobowitz
parent
7320480770
commit
13d7881aeb
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@ -1,3 +1,19 @@
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2006-03-02 Lior Balkohen <balkohen@gmail.com>
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* sysdeps/unix/sysv/linux/mips/nptl/bits/pthreadtypes.h
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(__pthread_list_t, __pthread_slist_t): New typedefs.
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(pthread_mutex_t): Replace __next and __prev fields with __list.
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* sysdeps/unix/sysv/linux/mips/nptl/lowlevellock.h (FUTEX_WAKE_OP,
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FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
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(lll_futex_wake_unlock): Define.
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(lll_robust_mutex_dead, lll_robust_mutex_trylock, lll_robust_mutex_lock,
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lll_robust_mutex_cond_lock, lll_robust_mutex_timedlock,
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lll_robust_mutex_unlock): New macros.
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(__lll_robust_lock_wait, __lll_robust_timedlock_wait): New prototypes.
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* sysdeps/unix/sysv/linux/mips/nptl/pt-vfork.S: Use correct path to
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vfork.S.
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* sysdeps/unix/sysv/linux/mips/nptl/vfork.S: Likewise.
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2006-03-02 Daniel Jacobowitz <dan@codesourcery.com>
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* sysdeps/unix/sysv/linux/mips/ptrace.c: Delete file.
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@ -55,6 +55,20 @@ typedef union
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} pthread_attr_t;
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#if _MIPS_SIM == _ABI64
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typedef struct __pthread_internal_list
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{
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struct __pthread_internal_list *__prev;
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struct __pthread_internal_list *__next;
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} __pthread_list_t;
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#else
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typedef struct __pthread_internal_slist
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{
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struct __pthread_internal_slist *__next;
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} __pthread_slist_t;
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#endif
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/* Data structures for mutex handling. The structure of the attribute
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type is deliberately not exposed. */
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typedef union
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@ -72,15 +86,14 @@ typedef union
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int __kind;
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#if _MIPS_SIM == _ABI64
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int __spins;
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struct __pthread_mutex_s *__next;
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struct __pthread_mutex_s *__prev;
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__pthread_list_t __list;
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# define __PTHREAD_MUTEX_HAVE_PREV 1
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#else
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unsigned int __nusers;
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__extension__ union
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{
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int __spins;
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struct __pthread_mutex_s *__next;
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__pthread_slist_t __list;
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};
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#endif
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} __data;
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@ -30,6 +30,8 @@
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#define FUTEX_WAKE 1
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#define FUTEX_REQUEUE 3
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#define FUTEX_CMP_REQUEUE 4
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#define FUTEX_WAKE_OP 5
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#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1)
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/* Initializer for compatibility lock. */
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#define LLL_MUTEX_LOCK_INITIALIZER (0)
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@ -61,6 +63,15 @@
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INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \
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})
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#define lll_robust_mutex_dead(futexv) \
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do \
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{ \
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int *__futexp = &(futexv); \
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atomic_or (__futexp, FUTEX_OWNER_DIED); \
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lll_futex_wake (__futexp, 1); \
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} \
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while (0)
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/* Returns non-zero if error happened, zero if success. */
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#define lll_futex_requeue(futexp, nr_wake, nr_move, mutex, val) \
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({ \
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@ -72,6 +83,18 @@
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INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
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})
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/* Returns non-zero if error happened, zero if success. */
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#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2) \
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({ \
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INTERNAL_SYSCALL_DECL (__err); \
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long int __ret; \
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\
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__ret = INTERNAL_SYSCALL (futex, __err, 6, \
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(futexp), FUTEX_WAKE_OP, (nr_wake), \
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(nr_wake2), (futexp2), \
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FUTEX_OP_CLEAR_WAKE_IF_GT_ONE); \
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INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
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})
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static inline int __attribute__((always_inline))
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__lll_mutex_trylock(int *futex)
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@ -89,7 +112,16 @@ __lll_mutex_cond_trylock(int *futex)
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#define lll_mutex_cond_trylock(lock) __lll_mutex_cond_trylock (&(lock))
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static inline int __attribute__((always_inline))
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__lll_robust_mutex_trylock(int *futex, int id)
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{
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return atomic_compare_and_exchange_val_acq (futex, id, 0) != 0;
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}
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#define lll_robust_mutex_trylock(lock, id) \
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__lll_robust_mutex_trylock (&(lock), id)
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extern void __lll_lock_wait (int *futex) attribute_hidden;
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extern int __lll_robust_lock_wait (int *futex) attribute_hidden;
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static inline void __attribute__((always_inline))
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__lll_mutex_lock(int *futex)
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@ -100,6 +132,18 @@ __lll_mutex_lock(int *futex)
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#define lll_mutex_lock(futex) __lll_mutex_lock (&(futex))
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static inline int __attribute__ ((always_inline))
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__lll_robust_mutex_lock (int *futex, int id)
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{
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int result = 0;
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if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0)
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result = __lll_robust_lock_wait (futex);
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return result;
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}
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#define lll_robust_mutex_lock(futex, id) \
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__lll_robust_mutex_lock (&(futex), id)
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static inline void __attribute__ ((always_inline))
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__lll_mutex_cond_lock (int *futex)
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{
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@ -109,8 +153,14 @@ __lll_mutex_cond_lock (int *futex)
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#define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex))
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#define lll_robust_mutex_cond_lock(futex, id) \
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__lll_robust_mutex_lock (&(futex), (id) | FUTEX_WAITERS)
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extern int __lll_timedlock_wait (int *futex, const struct timespec *)
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attribute_hidden;
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extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *)
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attribute_hidden;
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static inline int __attribute__ ((always_inline))
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__lll_mutex_timedlock (int *futex, const struct timespec *abstime)
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@ -124,6 +174,19 @@ __lll_mutex_timedlock (int *futex, const struct timespec *abstime)
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__lll_mutex_timedlock (&(futex), abstime)
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static inline int __attribute__ ((always_inline))
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__lll_robust_mutex_timedlock (int *futex, const struct timespec *abstime,
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int id)
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{
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int result = 0;
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if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0)
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result = __lll_robust_timedlock_wait (futex, abstime);
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return result;
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}
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#define lll_robust_mutex_timedlock(futex, abstime, id) \
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__lll_robust_mutex_timedlock (&(futex), abstime, id)
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static inline void __attribute__ ((always_inline))
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__lll_mutex_unlock (int *futex)
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{
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@ -134,6 +197,17 @@ __lll_mutex_unlock (int *futex)
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#define lll_mutex_unlock(futex) __lll_mutex_unlock(&(futex))
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static inline void __attribute__ ((always_inline))
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__lll_robust_mutex_unlock (int *futex, int mask)
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{
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int val = atomic_exchange_rel (futex, 0);
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if (__builtin_expect (val & mask, 0))
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lll_futex_wake (futex, 1);
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}
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#define lll_robust_mutex_unlock(futex) \
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__lll_robust_mutex_unlock(&(futex), FUTEX_WAITERS)
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static inline void __attribute__ ((always_inline))
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__lll_mutex_unlock_force (int *futex)
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{
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@ -1,4 +1,4 @@
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/* Copyright (C) 2005 Free Software Foundation, Inc.
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/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -34,4 +34,4 @@
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sw a2, PID_OFFSET(v1); /* Restore the PID. */ \
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1:
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#include <../sysdeps/unix/sysv/linux/mips/vfork.S>
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#include <sysdeps/unix/sysv/linux/mips/vfork.S>
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@ -1,4 +1,4 @@
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/* Copyright (C) 2005 Free Software Foundation, Inc.
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/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -39,4 +39,4 @@
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2: sw a2, PID_OFFSET(v1); /* Restore the PID. */ \
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1:
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#include <../sysdeps/unix/sysv/linux/mips/vfork.S>
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#include <sysdeps/unix/sysv/linux/mips/vfork.S>
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