[RFC PATCH v2 05/10] tools: add sparse context/locking annotations in compiler-types.h

[Riccardo Mancini <rickyman7@gmail.com>]

This patch copies sparse context/locking annotations from
include/compiler-types.h to tools/include/compiler-types.h.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
---
 tools/include/linux/compiler_types.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/tools/include/linux/compiler_types.h b/tools/include/linux/compiler_types.h
index feea09029f610120..24ae3054f304f274 100644
--- a/tools/include/linux/compiler_types.h
+++ b/tools/include/linux/compiler_types.h
@@ -13,6 +13,24 @@
 #define __has_builtin(x) (0)
 #endif
 
+#ifdef __CHECKER__
+/* context/locking */
+# define __must_hold(x)	__attribute__((context(x,1,1)))
+# define __acquires(x)	__attribute__((context(x,0,1)))
+# define __releases(x)	__attribute__((context(x,1,0)))
+# define __acquire(x)	__context__(x,1)
+# define __release(x)	__context__(x,-1)
+# define __cond_lock(x,c)	((c) ? ({ __acquire(x); 1; }) : 0)
+#else /* __CHECKER__ */
+/* context/locking */
+# define __must_hold(x)
+# define __acquires(x)
+# define __releases(x)
+# define __acquire(x)	(void)0
+# define __release(x)	(void)0
+# define __cond_lock(x,c) (c)
+#endif /* __CHECKER__ */
+
 /* Compiler specific macros. */
 #ifdef __GNUC__
 #include <linux/compiler-gcc.h>
-- 
2.31.1