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2.5-18.1
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Jakub Jelinek
103
nptl/pthreadP.h
103
nptl/pthreadP.h
@@ -1,4 +1,4 @@
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/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
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/* Copyright (C) 2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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@@ -31,6 +31,7 @@
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#include <internaltypes.h>
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#include <pthread-functions.h>
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#include <atomic.h>
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#include <kernel-features.h>
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/* Atomic operations on TLS memory. */
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@@ -51,6 +52,78 @@
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#endif
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/* Magic cookie representing robust mutex with dead owner. */
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#define PTHREAD_MUTEX_INCONSISTENT INT_MAX
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/* Magic cookie representing not recoverable robust mutex. */
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#define PTHREAD_MUTEX_NOTRECOVERABLE (INT_MAX - 1)
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/* Internal mutex type value. */
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enum
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{
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PTHREAD_MUTEX_KIND_MASK_NP = 3,
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PTHREAD_MUTEX_ROBUST_NORMAL_NP = 16,
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PTHREAD_MUTEX_ROBUST_RECURSIVE_NP
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= PTHREAD_MUTEX_ROBUST_NORMAL_NP | PTHREAD_MUTEX_RECURSIVE_NP,
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PTHREAD_MUTEX_ROBUST_ERRORCHECK_NP
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= PTHREAD_MUTEX_ROBUST_NORMAL_NP | PTHREAD_MUTEX_ERRORCHECK_NP,
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PTHREAD_MUTEX_ROBUST_ADAPTIVE_NP
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= PTHREAD_MUTEX_ROBUST_NORMAL_NP | PTHREAD_MUTEX_ADAPTIVE_NP,
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PTHREAD_MUTEX_PRIO_INHERIT_NP = 32,
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PTHREAD_MUTEX_PI_NORMAL_NP
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= PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_NORMAL,
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PTHREAD_MUTEX_PI_RECURSIVE_NP
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= PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_RECURSIVE_NP,
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PTHREAD_MUTEX_PI_ERRORCHECK_NP
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= PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ERRORCHECK_NP,
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PTHREAD_MUTEX_PI_ADAPTIVE_NP
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= PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ADAPTIVE_NP,
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PTHREAD_MUTEX_PI_ROBUST_NORMAL_NP
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= PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_NORMAL_NP,
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PTHREAD_MUTEX_PI_ROBUST_RECURSIVE_NP
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= PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_RECURSIVE_NP,
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PTHREAD_MUTEX_PI_ROBUST_ERRORCHECK_NP
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= PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_ERRORCHECK_NP,
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PTHREAD_MUTEX_PI_ROBUST_ADAPTIVE_NP
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= PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_ADAPTIVE_NP,
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PTHREAD_MUTEX_PRIO_PROTECT_NP = 64,
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PTHREAD_MUTEX_PP_NORMAL_NP
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= PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_NORMAL,
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PTHREAD_MUTEX_PP_RECURSIVE_NP
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= PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_RECURSIVE_NP,
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PTHREAD_MUTEX_PP_ERRORCHECK_NP
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= PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ERRORCHECK_NP,
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PTHREAD_MUTEX_PP_ADAPTIVE_NP
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= PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ADAPTIVE_NP
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};
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/* Ceiling in __data.__lock. __data.__lock is signed, so don't
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use the MSB bit in there, but in the mask also include that bit,
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so that the compiler can optimize & PTHREAD_MUTEX_PRIO_CEILING_MASK
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masking if the value is then shifted down by
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PTHREAD_MUTEX_PRIO_CEILING_SHIFT. */
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#define PTHREAD_MUTEX_PRIO_CEILING_SHIFT 19
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#define PTHREAD_MUTEX_PRIO_CEILING_MASK 0xfff80000
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/* Flags in mutex attr. */
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#define PTHREAD_MUTEXATTR_PROTOCOL_SHIFT 28
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#define PTHREAD_MUTEXATTR_PROTOCOL_MASK 0x30000000
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#define PTHREAD_MUTEXATTR_PRIO_CEILING_SHIFT 12
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#define PTHREAD_MUTEXATTR_PRIO_CEILING_MASK 0x00fff000
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#define PTHREAD_MUTEXATTR_FLAG_ROBUST 0x40000000
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#define PTHREAD_MUTEXATTR_FLAG_PSHARED 0x80000000
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#define PTHREAD_MUTEXATTR_FLAG_BITS \
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(PTHREAD_MUTEXATTR_FLAG_ROBUST | PTHREAD_MUTEXATTR_FLAG_PSHARED \
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| PTHREAD_MUTEXATTR_PROTOCOL_MASK | PTHREAD_MUTEXATTR_PRIO_CEILING_MASK)
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/* Bits used in robust mutex implementation. */
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#define FUTEX_WAITERS 0x80000000
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#define FUTEX_OWNER_DIED 0x40000000
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#define FUTEX_TID_MASK 0x3fffffff
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/* Internal variables. */
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@@ -87,6 +160,19 @@ hidden_proto (__pthread_keys)
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/* Number of threads running. */
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extern unsigned int __nptl_nthreads attribute_hidden;
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#ifndef __ASSUME_SET_ROBUST_LIST
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/* Negative if we do not have the system call and we can use it. */
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extern int __set_robust_list_avail attribute_hidden;
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#endif
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/* Thread Priority Protection. */
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extern int __sched_fifo_min_prio attribute_hidden;
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extern int __sched_fifo_max_prio attribute_hidden;
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extern void __init_sched_fifo_prio (void) attribute_hidden;
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extern int __pthread_tpp_change_priority (int prev_prio, int new_prio)
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attribute_hidden;
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extern int __pthread_current_priority (void) attribute_hidden;
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/* The library can run in debugging mode where it performs a lot more
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tests. */
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extern int __pthread_debug attribute_hidden;
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@@ -457,10 +543,25 @@ extern void __nptl_deallocate_tsd (void) attribute_hidden;
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extern int __nptl_setxid (struct xid_command *cmdp) attribute_hidden;
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extern void __free_stack_cache (void) attribute_hidden;
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extern void __wait_lookup_done (void) attribute_hidden;
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#ifdef SHARED
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# define PTHREAD_STATIC_FN_REQUIRE(name)
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#else
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# define PTHREAD_STATIC_FN_REQUIRE(name) __asm (".globl " #name);
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#endif
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#ifndef __NR_set_robust_list
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/* XXX For the time being... Once we can rely on the kernel headers
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having the definition remove these lines. */
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# if defined __i386__
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# define __NR_set_robust_list 311
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# elif defined __x86_64__
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# define __NR_set_robust_list 273
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# endif
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#endif
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#endif /* pthreadP.h */
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