Fix some __UCLIBC_IO_MUTEX_XXXX macro to be used without FUTEX support. Thanks Khem for pointing this out

1 files changed, 60 insertions, 2 deletions

diff --git a/libc/sysdeps/linux/common/bits/uClibc_mutex.h b/libc/sysdeps/linux/common/bits/uClibc_mutex.h
index 14aeb9c80..91b9ce915 100644
--- a/libc/sysdeps/linux/common/bits/uClibc_mutex.h
+++ b/libc/sysdeps/linux/common/bits/uClibc_mutex.h
@@ -14,6 +14,7 @@
 
 #include <pthread.h>
 #include <bits/uClibc_pthread.h>
+#include <bits/libc-lock.h>
 
 #define __UCLIBC_MUTEX_TYPE				pthread_mutex_t
 
@@ -62,7 +63,55 @@
 #define __UCLIBC_MUTEX_UNLOCK(M)									\
         __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M, 1)
 
-#else
+#ifdef __USE_STDIO_FUTEXES__
+
+#include <bits/stdio-lock.h>
+
+#define __UCLIBC_IO_MUTEX(M)			_IO_lock_t M
+#define __UCLIBC_IO_MUTEX_LOCK(M) 		_IO_lock_lock(M)
+#define __UCLIBC_IO_MUTEX_UNLOCK(M) 	_IO_lock_unlock(M)
+#define __UCLIBC_IO_MUTEX_TRYLOCK(M) 	_IO_lock_trylock(M)
+#define __UCLIBC_IO_MUTEX_INIT(M) 	_IO_lock_t M = _IO_lock_initializer
+#define __UCLIBC_IO_MUTEX_EXTERN(M)		extern _IO_lock_t M
+
+#define __UCLIBC_IO_MUTEX_CONDITIONAL_LOCK(M,C)		\
+	if (C) {										\
+		_IO_lock_lock(M);							\
+	}
+
+#define __UCLIBC_IO_MUTEX_CONDITIONAL_UNLOCK(M,C)	\
+	if (C) {										\
+		_IO_lock_unlock(M);							\
+	}
+
+#define __UCLIBC_IO_MUTEX_AUTO_LOCK(M,A,V)			\
+		__UCLIBC_IO_MUTEX_CONDITIONAL_LOCK(M,((A=(V))) == 0)
+
+#define __UCLIBC_IO_MUTEX_AUTO_UNLOCK(M,A)			\
+		__UCLIBC_IO_MUTEX_CONDITIONAL_UNLOCK(M,((A) == 0))
+
+#define __UCLIBC_IO_MUTEX_LOCK_CANCEL_UNSAFE(M)		_IO_lock_lock(M)
+#define __UCLIBC_IO_MUTEX_UNLOCK_CANCEL_UNSAFE(M) 	_IO_lock_unlock(M)
+
+#else /* of __USE_STDIO_FUTEXES__ */
+
+#define __UCLIBC_IO_MUTEX(M)                        __UCLIBC_MUTEX(M)
+#define __UCLIBC_IO_MUTEX_LOCK(M)                   __UCLIBC_MUTEX_CONDITIONAL_LOCK(M, 1)
+#define __UCLIBC_IO_MUTEX_UNLOCK(M)                 __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M, 1)
+#define __UCLIBC_IO_MUTEX_TRYLOCK(M)                __UCLIBC_MUTEX_TRYLOCK_CANCEL_UNSAFE(M)
+#define __UCLIBC_IO_MUTEX_INIT(M)                   __UCLIBC_MUTEX_INIT(M, PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP)
+#define __UCLIBC_IO_MUTEX_EXTERN(M)                 __UCLIBC_MUTEX_EXTERN(M)
+#define __UCLIBC_IO_MUTEX_AUTO_LOCK(M,A,V)          __UCLIBC_MUTEX_AUTO_LOCK(M,A,V)
+#define __UCLIBC_IO_MUTEX_AUTO_UNLOCK(M,A)          __UCLIBC_MUTEX_AUTO_UNLOCK(M,A)
+#define __UCLIBC_IO_MUTEX_LOCK_CANCEL_UNSAFE(M)     __UCLIBC_MUTEX_LOCK_CANCEL_UNSAFE(M)
+#define __UCLIBC_IO_MUTEX_UNLOCK_CANCEL_UNSAFE(M)   __UCLIBC_MUTEX_UNLOCK_CANCEL_UNSAFE(M)
+#define __UCLIBC_IO_MUTEX_CONDITIONAL_LOCK(M,C)     __UCLIBC_MUTEX_CONDITIONAL_LOCK(M, 1)
+#define __UCLIBC_IO_MUTEX_CONDITIONAL_UNLOCK(M,C)   __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M, 1)
+
+#endif /* of __USE_STDIO_FUTEXES__ */
+
+
+#else /* of __UCLIBC_HAS_THREADS__ */
 
 #define __UCLIBC_MUTEX(M)				void *__UCLIBC_MUTEX_DUMMY_ ## M
 #define __UCLIBC_MUTEX_INIT(M,I)			extern void *__UCLIBC_MUTEX_DUMMY_ ## M
@@ -83,6 +132,15 @@
 #define __UCLIBC_MUTEX_LOCK(M)				((void)0)
 #define __UCLIBC_MUTEX_UNLOCK(M)			((void)0)
 
-#endif
+#define __UCLIBC_IO_MUTEX_LOCK(M) 				((void)0)
+#define __UCLIBC_IO_MUTEX_UNLOCK(M)				((void)0)
+#define __UCLIBC_IO_MUTEX_TRYLOCK(M)				((void)0)
+#define __UCLIBC_IO_MUTEX_INIT(M,I)			extern void *__UCLIBC_MUTEX_DUMMY_ ## M
+#define __UCLIBC_IO_MUTEX_EXTERN(M)			extern void *__UCLIBC_MUTEX_DUMMY_ ## M
+
+#endif /* of __UCLIBC_HAS_THREADS__ */
+
+#define __UCLIBC_IO_MUTEX_TRYLOCK_CANCEL_UNSAFE(M)	\
+		__UCLIBC_IO_MUTEX_TRYLOCK(M)
 
 #endif /* _UCLIBC_MUTEX_H */