2.5-18.1

1 files changed, 102 insertions, 1 deletions

diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h
index 24168146fa..21ce6fe0b7 100644
--- a/nptl/pthreadP.h
+++ b/nptl/pthreadP.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -31,6 +31,7 @@
 #include <internaltypes.h>
 #include <pthread-functions.h>
 #include <atomic.h>
+#include <kernel-features.h>
 
 
 /* Atomic operations on TLS memory.  */
@@ -51,6 +52,78 @@
 #endif
 
 
+/* Magic cookie representing robust mutex with dead owner.  */
+#define PTHREAD_MUTEX_INCONSISTENT	INT_MAX
+/* Magic cookie representing not recoverable robust mutex.  */
+#define PTHREAD_MUTEX_NOTRECOVERABLE	(INT_MAX - 1)
+
+
+/* Internal mutex type value.  */
+enum
+{
+  PTHREAD_MUTEX_KIND_MASK_NP = 3,
+  PTHREAD_MUTEX_ROBUST_NORMAL_NP = 16,
+  PTHREAD_MUTEX_ROBUST_RECURSIVE_NP
+  = PTHREAD_MUTEX_ROBUST_NORMAL_NP | PTHREAD_MUTEX_RECURSIVE_NP,
+  PTHREAD_MUTEX_ROBUST_ERRORCHECK_NP
+  = PTHREAD_MUTEX_ROBUST_NORMAL_NP | PTHREAD_MUTEX_ERRORCHECK_NP,
+  PTHREAD_MUTEX_ROBUST_ADAPTIVE_NP
+  = PTHREAD_MUTEX_ROBUST_NORMAL_NP | PTHREAD_MUTEX_ADAPTIVE_NP,
+  PTHREAD_MUTEX_PRIO_INHERIT_NP = 32,
+  PTHREAD_MUTEX_PI_NORMAL_NP
+  = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_NORMAL,
+  PTHREAD_MUTEX_PI_RECURSIVE_NP
+  = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_RECURSIVE_NP,
+  PTHREAD_MUTEX_PI_ERRORCHECK_NP
+  = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ERRORCHECK_NP,
+  PTHREAD_MUTEX_PI_ADAPTIVE_NP
+  = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ADAPTIVE_NP,
+  PTHREAD_MUTEX_PI_ROBUST_NORMAL_NP
+  = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_NORMAL_NP,
+  PTHREAD_MUTEX_PI_ROBUST_RECURSIVE_NP
+  = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_RECURSIVE_NP,
+  PTHREAD_MUTEX_PI_ROBUST_ERRORCHECK_NP
+  = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_ERRORCHECK_NP,
+  PTHREAD_MUTEX_PI_ROBUST_ADAPTIVE_NP
+  = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_ADAPTIVE_NP,
+  PTHREAD_MUTEX_PRIO_PROTECT_NP = 64,
+  PTHREAD_MUTEX_PP_NORMAL_NP
+  = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_NORMAL,
+  PTHREAD_MUTEX_PP_RECURSIVE_NP
+  = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_RECURSIVE_NP,
+  PTHREAD_MUTEX_PP_ERRORCHECK_NP
+  = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ERRORCHECK_NP,
+  PTHREAD_MUTEX_PP_ADAPTIVE_NP
+  = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ADAPTIVE_NP
+};
+
+/* Ceiling in __data.__lock.  __data.__lock is signed, so don't
+   use the MSB bit in there, but in the mask also include that bit,
+   so that the compiler can optimize & PTHREAD_MUTEX_PRIO_CEILING_MASK
+   masking if the value is then shifted down by
+   PTHREAD_MUTEX_PRIO_CEILING_SHIFT.  */
+#define PTHREAD_MUTEX_PRIO_CEILING_SHIFT	19
+#define PTHREAD_MUTEX_PRIO_CEILING_MASK		0xfff80000
+
+
+/* Flags in mutex attr.  */
+#define PTHREAD_MUTEXATTR_PROTOCOL_SHIFT	28
+#define PTHREAD_MUTEXATTR_PROTOCOL_MASK		0x30000000
+#define PTHREAD_MUTEXATTR_PRIO_CEILING_SHIFT	12
+#define PTHREAD_MUTEXATTR_PRIO_CEILING_MASK	0x00fff000
+#define PTHREAD_MUTEXATTR_FLAG_ROBUST		0x40000000
+#define PTHREAD_MUTEXATTR_FLAG_PSHARED		0x80000000
+#define PTHREAD_MUTEXATTR_FLAG_BITS \
+  (PTHREAD_MUTEXATTR_FLAG_ROBUST | PTHREAD_MUTEXATTR_FLAG_PSHARED \
+   | PTHREAD_MUTEXATTR_PROTOCOL_MASK | PTHREAD_MUTEXATTR_PRIO_CEILING_MASK)
+
+
+/* Bits used in robust mutex implementation.  */
+#define FUTEX_WAITERS		0x80000000
+#define FUTEX_OWNER_DIED	0x40000000
+#define FUTEX_TID_MASK		0x3fffffff
+
+
 /* Internal variables.  */
 
 
@@ -87,6 +160,19 @@ hidden_proto (__pthread_keys)
 /* Number of threads running.  */
 extern unsigned int __nptl_nthreads attribute_hidden;
 
+#ifndef __ASSUME_SET_ROBUST_LIST
+/* Negative if we do not have the system call and we can use it.  */
+extern int __set_robust_list_avail attribute_hidden;
+#endif
+
+/* Thread Priority Protection.  */
+extern int __sched_fifo_min_prio attribute_hidden;
+extern int __sched_fifo_max_prio attribute_hidden;
+extern void __init_sched_fifo_prio (void) attribute_hidden;
+extern int __pthread_tpp_change_priority (int prev_prio, int new_prio)
+     attribute_hidden;
+extern int __pthread_current_priority (void) attribute_hidden;
+
 /* The library can run in debugging mode where it performs a lot more
    tests.  */
 extern int __pthread_debug attribute_hidden;
@@ -457,10 +543,25 @@ extern void __nptl_deallocate_tsd (void) attribute_hidden;
 
 extern int __nptl_setxid (struct xid_command *cmdp) attribute_hidden;
 
+extern void __free_stack_cache (void) attribute_hidden;
+
+extern void __wait_lookup_done (void) attribute_hidden;
+
 #ifdef SHARED
 # define PTHREAD_STATIC_FN_REQUIRE(name)
 #else
 # define PTHREAD_STATIC_FN_REQUIRE(name) __asm (".globl " #name);
 #endif
 
+
+#ifndef __NR_set_robust_list
+/* XXX For the time being...  Once we can rely on the kernel headers
+   having the definition remove these lines.  */
+# if defined __i386__
+#  define __NR_set_robust_list  311
+# elif defined __x86_64__
+#  define __NR_set_robust_list  273
+# endif
+#endif
+
 #endif	/* pthreadP.h */