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Force build failure on unknown architectures
[urcu.git]
/
urcu
/
compiler.h
diff --git
a/urcu/compiler.h
b/urcu/compiler.h
index 975e1eadc1e9cfddd8c21d34f129921808ef7863..ce19c74764de7c82c5c8dbb06e2ddd214027c5f8 100644
(file)
--- a/
urcu/compiler.h
+++ b/
urcu/compiler.h
@@
-23,7
+23,7
@@
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
-#define barrier() asm volatile("" : : : "memory")
;
+#define barrier() asm volatile("" : : : "memory")
/*
* Instruct the compiler to perform only a single access to a variable
/*
* Instruct the compiler to perform only a single access to a variable
@@
-37,7
+37,7
@@
* use is to mediate communication between process-level code and irq/NMI
* handlers, all running on the same CPU.
*/
* use is to mediate communication between process-level code and irq/NMI
* handlers, all running on the same CPU.
*/
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&
x
)
+#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&
(x)
)
#ifndef max
#define max(a,b) ((a)>(b)?(a):(b))
#ifndef max
#define max(a,b) ((a)>(b)?(a):(b))
@@
-47,4
+47,12
@@
#define min(a,b) ((a)<(b)?(a):(b))
#endif
#define min(a,b) ((a)<(b)?(a):(b))
#endif
+#if defined(__SIZEOF_LONG__)
+#define BITS_PER_LONG (__SIZEOF_LONG__ * 8)
+#elif defined(_LP64)
+#define BITS_PER_LONG 64
+#else
+#define BITS_PER_LONG 32
+#endif
+
#endif /* _URCU_COMPILER_H */
#endif /* _URCU_COMPILER_H */
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