debug.h

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/*
 * Copyright (C) 2014 Freie Universität 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.
 */

#ifndef DEBUG_H
#define DEBUG_H

#include <stdio.h>
#include "sched.h"
#include "thread.h"

#ifdef __cplusplus
extern "C" {
#endif

#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. Consider using DEBUG_PUTS()."); \
        } \
    } while (0)
#else
#define DEBUG_PRINT(...) printf(__VA_ARGS__)
#endif

#ifndef ENABLE_DEBUG
#define ENABLE_DEBUG (0)
#endif

# 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

#define DEBUG(...) if (ENABLE_DEBUG) DEBUG_PRINT(__VA_ARGS__)

#define DEBUG_PUTS(str) if (ENABLE_DEBUG) puts(str)

#if ENABLE_DEBUG
#define DEBUG_EXTRA_STACKSIZE THREAD_EXTRA_STACKSIZE_PRINTF
#else
#define DEBUG_EXTRA_STACKSIZE (0)
#endif

#ifdef __cplusplus
}
#endif

#endif /* DEBUG_H */