a752c7ab
 elopes
add first test an...
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/*
* Copyright (C) 2014 Freie Universitรคt Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @addtogroup core_util
* @{
*
* @file
* @brief Debug-header
*
* @details If *ENABLE_DEBUG* is defined inside an implementation file, all
* calls to ::DEBUG will work the same as *printf* and output the
* given information to stdout. If *ENABLE_DEBUG* is not defined,
* all calls to ::DEBUG will be ignored.
*
* @author Kaspar Schleiser <kaspar@schleiser.de>
*/
#ifndef DEBUG_H
#define DEBUG_H
#include <stdio.h>
#include "sched.h"
#include "thread.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @def ENABLE_DEBUG
* @brief This macro can be defined as 0 or other on a file-based level.
* @ref DEBUG() will generate output only if ENABLE_DEBUG is non-zero.
*/
/**
* @def DEBUG_PRINT
*
* @brief Print debug information if the calling thread stack is large enough
*
* Use this macro the same as `printf`. When `DEVELHELP` is defined inside an
* implementation file, all usages of ::DEBUG_PRINT will print the given
* information to stdout after verifying the stack is big enough. If `DEVELHELP`
* is not set, this check is not performed. (CPU exception may occur)
*/
#ifdef DEVELHELP
#include "cpu_conf.h"
#define DEBUG_PRINT(...) \
do { \
if ((sched_active_thread == NULL) || (sched_active_thread->stack_size > THREAD_EXTRA_STACKSIZE_PRINTF)) { \
printf(__VA_ARGS__); \
} \
else { \
puts("Cannot debug, stack too small"); \
} \
} while (0)
#else
#define DEBUG_PRINT(...) printf(__VA_ARGS__)
#endif
/**
* @name Debugging defines
* @{
*/
#if ENABLE_DEBUG
/**
* @def DEBUG_FUNC
*
* @brief Contains the function name if given compiler supports it.
* Otherwise it is an empty string.
*/
# if defined(__cplusplus) && defined(__GNUC__)
# define DEBUG_FUNC __PRETTY_FUNCTION__
# elif __STDC_VERSION__ >= 199901L
# define DEBUG_FUNC __func__
# elif __GNUC__ >= 2
# define DEBUG_FUNC __FUNCTION__
# else
# define DEBUG_FUNC ""
# endif
/**
* @def DEBUG
*
* @brief Print debug information to stdout
*
* @note Another name for ::DEBUG_PRINT
*/
#define DEBUG(...) DEBUG_PRINT(__VA_ARGS__)
#else
#define DEBUG(...)
#endif
/** @} */
/**
* @def DEBUG_EXTRA_STACKSIZE
*
* @brief Extra stacksize needed when ENABLE_DEBUG==1
*/
#if ENABLE_DEBUG
#define DEBUG_EXTRA_STACKSIZE THREAD_EXTRA_STACKSIZE_PRINTF
#else
#define DEBUG_EXTRA_STACKSIZE (0)
#endif
#ifdef __cplusplus
}
#endif
#endif /* DEBUG_H */
/** @} */
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