auto import from //depot/cupcake/@135843
diff --git a/libc/bionic/pthread_internal.h b/libc/bionic/pthread_internal.h
new file mode 100644
index 0000000..eb4e80c
--- /dev/null
+++ b/libc/bionic/pthread_internal.h
@@ -0,0 +1,115 @@
+/*
+ * 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>
+
+__BEGIN_DECLS
+
+typedef struct pthread_internal_t
+{
+ struct pthread_internal_t* next;
+ struct pthread_internal_t** pref;
+ pthread_attr_t attr;
+ pid_t kernel_id;
+ pthread_cond_t join_cond;
+ int join_count;
+ void* return_value;
+ int intern;
+ __pthread_cleanup_t* cleanup_stack;
+ void** tls; /* thread-local storage area */
+} pthread_internal_t;
+
+extern void _init_thread(pthread_internal_t * thread, pid_t kernel_id, pthread_attr_t * attr, void * stack_base);
+
+/* needed by posix-timers.c */
+
+static __inline__ void timespec_add( struct timespec* a, const struct timespec* b )
+{
+ a->tv_sec += b->tv_sec;
+ a->tv_nsec += b->tv_nsec;
+ if (a->tv_nsec >= 1000000000) {
+ a->tv_nsec -= 1000000000;
+ a->tv_sec += 1;
+ }
+}
+
+static __inline__ void timespec_sub( struct timespec* a, const struct timespec* b )
+{
+ a->tv_sec -= b->tv_sec;
+ a->tv_nsec -= b->tv_nsec;
+ if (a->tv_nsec < 0) {
+ a->tv_nsec += 1000000000;
+ a->tv_sec -= 1;
+ }
+}
+
+static __inline__ void timespec_zero( struct timespec* a )
+{
+ a->tv_sec = a->tv_nsec = 0;
+}
+
+static __inline__ int timespec_is_zero( const struct timespec* a )
+{
+ return (a->tv_sec == 0 && a->tv_nsec == 0);
+}
+
+static __inline__ int timespec_cmp( const struct timespec* a, const struct timespec* b )
+{
+ if (a->tv_sec < b->tv_sec) return -1;
+ if (a->tv_sec > b->tv_sec) return +1;
+ if (a->tv_nsec < b->tv_nsec) return -1;
+ if (a->tv_nsec > b->tv_nsec) return +1;
+ return 0;
+}
+
+static __inline__ int timespec_cmp0( const struct timespec* a )
+{
+ if (a->tv_sec < 0) return -1;
+ if (a->tv_sec > 0) return +1;
+ if (a->tv_nsec < 0) return -1;
+ if (a->tv_nsec > 0) return +1;
+ return 0;
+}
+
+extern int __pthread_cond_timedwait(pthread_cond_t*,
+ pthread_mutex_t*,
+ const struct timespec*,
+ clockid_t);
+
+extern int __pthread_cond_timedwait_relative(pthread_cond_t*,
+ pthread_mutex_t*,
+ const struct timespec*);
+
+/* needed by fork.c */
+extern void __timer_table_start_stop(int stop);
+
+__END_DECLS
+
+#endif /* _PTHREAD_INTERNAL_H_ */