nptl: fix calling convention for __pthread_mutex_cond_lock

The assembly versions of pthread_cond_wait calls
__pthread_mutex_cond_lock and __pthread_mutex_cond_lock_adjust
using internal calling convention (which differs from default
calling convention at least on x86). Thus these two functions
must be defined with internal_function or the call sequence goes
wrong.

__pthread_mutex_cond_lock resides in
sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c, but it does
evil macro definitions and includes pthread_mutex_lock.c, so
we need to add some extra kludge to pthread_mutex_lock.c to get
the prototypes correctly.

Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libpthread/nptl/pthreadP.h

@@ -414,8 +414,10 @@ extern int __pthread_mutex_trylock (pthread_mutex_t *_mutex);
 extern int __pthread_mutex_lock (pthread_mutex_t *__mutex);
 extern int __pthread_mutex_lock_internal (pthread_mutex_t *__mutex)
      attribute_hidden;
-extern int __pthread_mutex_cond_lock (pthread_mutex_t *__mutex);
-extern void __pthread_mutex_cond_lock_adjust (pthread_mutex_t *__mutex);
+extern int __pthread_mutex_cond_lock (pthread_mutex_t *__mutex)
+     attribute_hidden internal_function;
+extern void __pthread_mutex_cond_lock_adjust (pthread_mutex_t *__mutex)
+     attribute_hidden internal_function;
 extern int __pthread_mutex_unlock (pthread_mutex_t *__mutex);
 extern int __pthread_mutex_unlock_internal (pthread_mutex_t *__mutex)
      attribute_hidden;

libpthread/nptl/pthread_mutex_lock.c

@@ -42,7 +42,11 @@ static int __pthread_mutex_lock_full (pthread_mutex_t *mutex)
 
 
 int
+#ifdef NO_INCR
+attribute_hidden internal_function
+#else
 attribute_protected
+#endif
 __pthread_mutex_lock (
      pthread_mutex_t *mutex)
 {
@@ -477,7 +481,8 @@ strong_alias (__pthread_mutex_lock, __pthread_mutex_lock_internal)
 
 
 #ifdef NO_INCR
-void attribute_protected
+void
+attribute_hidden internal_function
 __pthread_mutex_cond_lock_adjust (
      pthread_mutex_t *mutex)
 {