From ab3c0ddb0d71dc214b61d11deb8770196ef46c05 Mon Sep 17 00:00:00 2001
From: Riccardo Mancini <rickyman7@gmail.com>
Date: Fri, 30 Jul 2021 17:34:12 +0200
Subject: tools: Add sparse context/locking annotations in compiler-types.h

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

Committer notes:

This will be used in the upcoming workqueue patchset.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http //lore.kernel.org/lkml/58b2f161ce856ec8b499f4dcf60a10adc84651e0.1627657061.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/include/linux/compiler_types.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'tools/include/linux/compiler_types.h')

diff --git a/tools/include/linux/compiler_types.h b/tools/include/linux/compiler_types.h
index feea09029f61..24ae3054f304 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>
-- 
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