--- /dev/null
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#ifndef _PTHREAD_INTERNAL_H_
+#define _PTHREAD_INTERNAL_H_
+
+#include <pthread.h>
+
+struct pthread_internal_t {
+ struct pthread_internal_t* next;
+ struct pthread_internal_t* prev;
+
+ pid_t tid;
+
+ void** tls;
+
+ volatile pthread_attr_t attr;
+
+ __pthread_cleanup_t* cleanup_stack;
+
+ void* (*start_routine)(void*);
+ void* start_routine_arg;
+ void* return_value;
+
+ void* alternate_signal_stack;
+
+ /*
+ * The dynamic linker implements dlerror(3), which makes it hard for us to implement this
+ * per-thread buffer by simply using malloc(3) and free(3).
+ */
+#define __BIONIC_DLERROR_BUFFER_SIZE 508
+ char dlerror_buffer[__BIONIC_DLERROR_BUFFER_SIZE];
+
+ // ugly hack: use last 4 bytes of dlerror_buffer as cancel_lock
+ pthread_mutex_t cancel_lock;
+};
+
+/* Has the thread a cancellation request? */
+#define PTHREAD_ATTR_FLAG_CANCEL_PENDING 0x00000008
+
+/* Has the thread enabled cancellation? */
+#define PTHREAD_ATTR_FLAG_CANCEL_ENABLE 0x00000010
+
+/* Has the thread asyncronous cancellation? */
+#define PTHREAD_ATTR_FLAG_CANCEL_ASYNCRONOUS 0x00000020
+
+/* Has the thread a cancellation handler? */
+#define PTHREAD_ATTR_FLAG_CANCEL_HANDLER 0x00000040
+
+struct pthread_internal_t *__pthread_getid ( pthread_t );
+
+int __pthread_do_cancel (struct pthread_internal_t *);
+
+void pthread_init(void);
+
+#endif /* _PTHREAD_INTERNAL_H_ */