libpthread/nptl: core of the "Native Posix Threading Library" for uClibc

targetting arm,sh,i386,mips,sparc for now

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

1 files changed, 153 insertions, 0 deletions

diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/internaltypes.h b/libpthread/nptl/sysdeps/unix/sysv/linux/internaltypes.h
new file mode 100644
index 000000000..07ee9d7dd
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/internaltypes.h
@@ -0,0 +1,153 @@
+/* Copyright (C) 2002, 2003, 2004 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.  */
+
+#ifndef _INTERNALTYPES_H
+#define _INTERNALTYPES_H	1
+
+#include <stdint.h>
+#include <sched.h>
+
+
+struct pthread_attr
+{
+  /* Scheduler parameters and priority.  */
+  struct sched_param schedparam;
+  int schedpolicy;
+  /* Various flags like detachstate, scope, etc.  */
+  int flags;
+  /* Size of guard area.  */
+  size_t guardsize;
+  /* Stack handling.  */
+  void *stackaddr;
+  size_t stacksize;
+  /* Affinity map.  */
+  cpu_set_t *cpuset;
+  size_t cpusetsize;
+};
+
+#define ATTR_FLAG_DETACHSTATE		0x0001
+#define ATTR_FLAG_NOTINHERITSCHED	0x0002
+#define ATTR_FLAG_SCOPEPROCESS		0x0004
+#define ATTR_FLAG_STACKADDR		0x0008
+#define ATTR_FLAG_OLDATTR		0x0010
+#define ATTR_FLAG_SCHED_SET		0x0020
+#define ATTR_FLAG_POLICY_SET		0x0040
+
+
+/* Mutex attribute data structure.  */
+struct pthread_mutexattr
+{
+  /* Identifier for the kind of mutex.
+
+     Bit 31 is set if the mutex is to be shared between processes.
+
+     Bit 0 to 30 contain one of the PTHREAD_MUTEX_ values to identify
+     the type of the mutex.  */
+  int mutexkind;
+};
+
+
+/* Conditional variable attribute data structure.  */
+struct pthread_condattr
+{
+  /* Combination of values:
+
+     Bit 0  : flag whether coditional variable will be shareable between
+	      processes.
+
+     Bit 1-7: clock ID.  */
+  int value;
+};
+
+
+/* The __NWAITERS field is used as a counter and to house the number
+   of bits which represent the clock.  COND_CLOCK_BITS is the number
+   of bits reserved for the clock.  */
+#define COND_CLOCK_BITS	1
+
+
+/* Read-write lock variable attribute data structure.  */
+struct pthread_rwlockattr
+{
+  int lockkind;
+  int pshared;
+};
+
+
+/* Barrier data structure.  */
+struct pthread_barrier
+{
+  unsigned int curr_event;
+  int lock;
+  unsigned int left;
+  unsigned int init_count;
+};
+
+
+/* Barrier variable attribute data structure.  */
+struct pthread_barrierattr
+{
+  int pshared;
+};
+
+
+/* Thread-local data handling.  */
+struct pthread_key_struct
+{
+  /* Sequence numbers.  Even numbers indicated vacant entries.  Note
+     that zero is even.  We use uintptr_t to not require padding on
+     32- and 64-bit machines.  On 64-bit machines it helps to avoid
+     wrapping, too.  */
+  uintptr_t seq;
+
+  /* Destructor for the data.  */
+  void (*destr) (void *);
+};
+
+/* Check whether an entry is unused.  */
+#define KEY_UNUSED(p) (((p) & 1) == 0)
+/* Check whether a key is usable.  We cannot reuse an allocated key if
+   the sequence counter would overflow after the next destroy call.
+   This would mean that we potentially free memory for a key with the
+   same sequence.  This is *very* unlikely to happen, A program would
+   have to create and destroy a key 2^31 times (on 32-bit platforms,
+   on 64-bit platforms that would be 2^63).  If it should happen we
+   simply don't use this specific key anymore.  */
+#define KEY_USABLE(p) (((uintptr_t) (p)) < ((uintptr_t) ((p) + 2)))
+
+
+/* Handling of read-write lock data.  */
+// XXX For now there is only one flag.  Maybe more in future.
+#define RWLOCK_RECURSIVE(rwlock) ((rwlock)->__data.__flags != 0)
+
+
+/* Semaphore variable structure.  */
+struct sem
+{
+  unsigned int count;
+};
+
+
+/* Compatibility type for old conditional variable interfaces.  */
+typedef struct
+{
+  pthread_cond_t *cond;
+} pthread_cond_2_0_t;
+
+#endif	/* internaltypes.h */