include/misc/debug/object_tracing_common.h

/*
 * Copyright (c) 2016 Intel Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @file
 * @brief APIs used to add or remove an object in a debug tracing list.
 */

#ifndef _OBJECT_TRACING_COMMON_H_
#define _OBJECT_TRACING_COMMON_H_

#ifndef CONFIG_DEBUG_TRACING_KERNEL_OBJECTS

#define SYS_TRACING_OBJ_INIT(name, obj) do { } while ((0))
#define SYS_TRACING_OBJ_INIT_DLL(name, obj) do { } while ((0))
#define SYS_TRACING_OBJ_REMOVE_DLL(name, obj) do { } while ((0))

#else

/**
 * @def SYS_TRACING_OBJ_INIT
 *
 * @brief Adds a new object into the trace list
 *
 * @details The object is added for tracing into
 * a trace list. This is usually called at the
 * moment of object initialization.
 *
 * @param name Name of the trace list.
 * @param obj Object to be added in the trace list.
 */
#define SYS_TRACING_OBJ_INIT(name, obj)	\
	do {					\
		unsigned int key;		\
						\
		key = irq_lock();		\
		(obj)->__next =  _trace_list_##name;\
		_trace_list_##name = obj;       \
		irq_unlock(key);		\
	}					\
	while (0)

/**
 * @def SYS_TRACING_OBJ_INIT_DLL
 *
 * @brief Adds a new object into the trace list
 * as a double linked list.
 *
 * @details The object is added for tracing into
 * a trace list. This is usually called at the
 * moment of object initialization. This list is
 * used for objects that can be removed from the
 * tracing list dynamically.
 *
 * @param name Name of the trace list.
 * @param obj Object to be added in the trace list.
 */
#define SYS_TRACING_OBJ_INIT_DLL(name, obj)	\
	do {					\
		unsigned int key;		\
						\
		key = irq_lock();		\
		if (_trace_list_##name) {	\
			_trace_list_##name->__prev = (obj);\
		}				\
		(obj)->__next = _trace_list_##name;\
		(obj)->__prev = NULL;		\
		_trace_list_##name = obj;       \
		irq_unlock(key);		\
	}					\
	while (0)

/**
 * @def SYS_TRACING_OBJ_REMOVE_DLL
 *
 * @brief Removes an object from a double linked
 * trace list.
 *
 * @details The object is remove from the trace list.
 * It needs to be used with DEBUG_TRACING_OBJ_INIT_DLL
 * as a pair.
 *
 * @param name Name of the trace list.
 * @param obj Object to be removed from the trace list.
 */
#define SYS_TRACING_OBJ_REMOVE_DLL(name, obj)	\
	do {						\
		unsigned int key;			\
							\
		key = irq_lock();			\
		if (obj->__next) {			\
			obj->__next->__prev = (obj)->__prev;\
		}					\
		if (obj->__prev) {			\
			obj->__prev->__next = (obj)->__next;\
		} else {				\
			_trace_list_##name = (obj)->__next;\
		}					\
		irq_unlock(key);			\
	}						\
	while (0)

#if !defined(CONFIG_KERNEL_V2)

/*
 * Define list variables for all object types.
 *
 * This is ugly, since these list variables are redefined by every .c file
 * that drags in this include file (explicitly or implicitly). Fortunately,
 * the linker doesn't seem to mind seeing these duplicate definitions ...
 */

#include <nanokernel.h>
struct nano_fifo  *_trace_list_nano_fifo;
struct nano_lifo  *_trace_list_nano_lifo;
struct nano_sem   *_trace_list_nano_sem;
struct nano_timer *_trace_list_nano_timer;
struct nano_stack *_trace_list_nano_stack;
struct ring_buf *_trace_list_sys_ring_buf;

#ifdef CONFIG_MICROKERNEL
#include <microkernel/base_api.h>
struct _k_mbox_struct  *_trace_list_micro_mbox;
struct _k_mutex_struct *_trace_list_micro_mutex;
struct _k_sem_struct   *_trace_list_micro_sem;
struct _k_fifo_struct  *_trace_list_micro_fifo;
struct _k_pipe_struct  *_trace_list_micro_pipe;
struct pool_struct     *_trace_list_micro_mem_pool;
struct _k_mem_map_struct *_trace_list_micro_mem_map;
struct _k_event_struct *_trace_list_micro_event;
struct k_timer         *_trace_list_micro_timer;
struct k_task          *_trace_list_micro_task;
#endif /*CONFIG_MICROKERNEL*/

#else

/*
 * Define list variables for object types that don't do it in a .c file.
 *
 * This is ugly, since these list variables are redefined by every .c file
 * that drags in this include file (explicitly or implicitly). Fortunately,
 * the linker doesn't seem to mind seeing these duplicate definitions ...
 */

struct ring_buf;

struct ring_buf   *_trace_list_sys_ring_buf;

#endif /*CONFIG_KERNEL_V2*/


#endif /*CONFIG_DEBUG_TRACING_KERNEL_OBJECTS*/
#endif /*_OBJECT_TRACING_COMMON_H_*/