From 44d13f199a033b2a220d01003b885a0103adf5a4 Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Thu, 16 Jun 2011 15:33:33 -0400 Subject: [PATCH] Add bug management header Signed-off-by: Mathieu Desnoyers --- include/ust/bug.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 include/ust/bug.h diff --git a/include/ust/bug.h b/include/ust/bug.h new file mode 100644 index 00000000..8243cc94 --- /dev/null +++ b/include/ust/bug.h @@ -0,0 +1,29 @@ +#ifndef _LTTNG_BUG_H +#define _LTTNG_BUG_H + +/* + * lib/bug.h + * + * (C) Copyright 2010-2011 - Mathieu Desnoyers + * + * Dual LGPL v2.1/GPL v2 license. + */ + +/** + * BUILD_RUNTIME_BUG_ON - check condition at build (if constant) or runtime + * @condition: the condition which should be false. + * + * If the condition is a constant and true, the compiler will generate a build + * error. If the condition is not constant, a BUG will be triggered at runtime + * if the condition is ever true. If the condition is constant and false, no + * code is emitted. + */ +#define BUILD_RUNTIME_BUG_ON(condition) \ + do { \ + if (__builtin_constant_p(condition)) \ + BUILD_BUG_ON(condition); \ + else \ + BUG_ON(condition); \ + } while (0) + +#endif -- 2.34.1