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/*
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 * Copyright (c) 2005 Martin Decky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup genericdebug
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 * @{
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 */
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/** @file
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 */
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#ifndef KERN_DEBUG_H_
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#define KERN_DEBUG_H_
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#include <panic.h>
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#include <arch/debug.h>
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#define CALLER ((uintptr_t) __builtin_return_address(0))
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#ifndef HERE
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/** Current Instruction Pointer address */
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#   define HERE ((uintptr_t *) 0)
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#endif
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/** Debugging ASSERT macro
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 *
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 * If CONFIG_DEBUG is set, the ASSERT() macro
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 * evaluates expr and if it is false raises
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 * kernel panic.
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 *
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 * @param expr Expression which is expected to be true.
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 *
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 */
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#ifdef CONFIG_DEBUG
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#   define ASSERT(expr) \
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        if (!(expr)) { \
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            panic("assertion failed (%s), caller=%p\n", #expr, CALLER); \
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        }
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#else
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#   define ASSERT(expr)
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#endif
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/** Extensive debugging output macro
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 *
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 * If CONFIG_EDEBUG is set, the LOG() macro
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 * will print whatever message is indicated plus
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 * an information about the location.
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 *
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 */
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#ifdef CONFIG_EDEBUG
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#   define LOG(format, ...) \
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        printf("%s() at %s:%u: " format "\n", __func__, __FILE__, \
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            __LINE__, ##__VA_ARGS__);
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#else
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#   define LOG(format, ...)
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#endif
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/** Extensive debugging execute macro
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 *
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 * If CONFIG_EDEBUG is set, the LOG_EXEC() macro
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 * will print an information about calling a given
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 * function and call it.
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 *
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 */
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#ifdef CONFIG_EDEBUG
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#   define LOG_EXEC(fnc) \
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        { \
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            printf("%s() at %s:%u: " #fnc "\n", __func__, __FILE__, \
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            __LINE__); \
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            fnc; \
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        }
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#else
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#   define LOG_EXEC(fnc) fnc
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#endif
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#endif
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/** @}
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 */