/
bug.hpp
42 lines (36 loc) · 1.49 KB
/
bug.hpp
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/*
* Copyright (C) 2010-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
* SPDX-License-Identifier: MIT
*
*/
#ifndef _LTTNG_BUG_H
#define _LTTNG_BUG_H
#include <stdio.h>
#include <stdlib.h>
#include <urcu/compiler.h>
#define LTTNG_BUG_ON(condition) \
do { \
if (caa_unlikely(condition)) { \
fprintf(stderr, "LTTng BUG in file %s, line %d.\n", __FILE__, __LINE__); \
exit(EXIT_FAILURE); \
} \
} while (0)
#define LTTNG_BUILD_BUG_ON(condition) ((void) sizeof(char[-!!(condition)]))
/**
* LTTNG_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 LTTNG_BUILD_RUNTIME_BUG_ON(condition) \
do { \
if (__builtin_constant_p(condition)) \
LTTNG_BUILD_BUG_ON(condition); \
else \
LTTNG_BUG_ON(condition); \
} while (0)
#endif