170 lines
6.4 KiB
C
170 lines
6.4 KiB
C
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/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LOS_INIT_INFO_H
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#define _LOS_INIT_INFO_H
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#include "stdalign.h"
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#include "los_toolchain.h"
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#include "los_typedef.h"
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/**
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* @ingroup los_init_info
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* Macro LOS_INIT_DEBUG needs to be defined here, used to debug the init framework.
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* #define LOS_INIT_DEBUG
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*/
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/**
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* @ingroup los_init_info
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* Macro LOS_INIT_STATISTICS needs to be defined here, used to count the kernel startup time.
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* @attention
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* <ul>
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* <li> if uses, the macro LOS_INIT_DEBUG must be undefined. </li>
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* </ul>
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* #define LOS_INIT_STATISTICS
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*/
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#if defined(LOS_INIT_STATISTICS) && defined(LOS_INIT_DEBUG)
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#error "LOS_INIT_STATISTICS needs LOS_INIT_DEBUG to be undefined"
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#endif
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#define INIT_SECTION(_type, _level, _hook) __attribute__((section(".rodata.init."#_type"."#_level"."#_hook)))
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#define INIT_ALIGN __attribute__((aligned(alignof(struct ModuleInitInfo))))
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typedef UINT32 (*OsInitHook)(VOID);
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struct ModuleInitInfo {
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OsInitHook hook;
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#ifdef LOS_INIT_DEBUG
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const CHAR *name;
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#endif
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};
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#ifdef LOS_INIT_DEBUG
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#define SET_MODULE_NAME(_hook) .name = #_hook,
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#else
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#define SET_MODULE_NAME(_hook)
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#endif
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/**
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* @ingroup los_init_info
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* @brief Add a registration module to the specified level in a startup framework.
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*
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* @par Description:
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* This API is used to add a registration module to the specified level in a startup framework.
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* @attention
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* <ul>
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* <li>It is not recommended to call directly, it is recommended that each startup framework
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* encapsulate a layer of interface in los_init.h.</li>
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* </ul>
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*
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* @param _type [IN] Type name of startup framework.
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* @param _hook [IN] Register function.
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* @param _level [IN] At which _level do you want to register.
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*
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* @retval None
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* @par Dependency:
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* <ul><li>los_task_info.h: the header file that contains the API declaration.</li></ul>
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* @see
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*/
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#define OS_INIT_HOOK_REG(_type, _hook, _level) \
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STATIC const struct ModuleInitInfo ModuleInitInfo_##_hook \
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USED INIT_SECTION(_type, _level, _hook) INIT_ALIGN = { \
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.hook = (UINT32 (*)(VOID))&_hook, \
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SET_MODULE_NAME(_hook) \
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};
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#define EXTERN_LABEL(_type, _level) extern struct ModuleInitInfo __##_type##_init_level_##_level;
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#define GET_LABEL(_type, _level) &__##_type##_init_level_##_level,
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#define INIT_LABEL_REG_0(_op, _type) \
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_op(_type, 0)
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#define INIT_LABEL_REG_1(_op, _type) \
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INIT_LABEL_REG_0(_op, _type) \
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_op(_type, 1)
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#define INIT_LABEL_REG_2(_op, _type) \
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INIT_LABEL_REG_1(_op, _type) \
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_op(_type, 2)
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#define INIT_LABEL_REG_3(_op, _type) \
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INIT_LABEL_REG_2(_op, _type) \
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_op(_type, 3)
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#define INIT_LABEL_REG_4(_op, _type) \
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INIT_LABEL_REG_3(_op, _type) \
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_op(_type, 4)
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#define INIT_LABEL_REG_5(_op, _type) \
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INIT_LABEL_REG_4(_op, _type) \
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_op(_type, 5)
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#define INIT_LABEL_REG_6(_op, _type) \
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INIT_LABEL_REG_5(_op, _type) \
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_op(_type, 6)
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#define INIT_LABEL_REG_7(_op, _type) \
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INIT_LABEL_REG_6(_op, _type) \
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_op(_type, 7)
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#define INIT_LABEL_REG_8(_op, _type) \
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INIT_LABEL_REG_7(_op, _type) \
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_op(_type, 8)
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#define INIT_LABEL_REG_9(_op, _type) \
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INIT_LABEL_REG_8(_op, _type) \
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_op(_type, 9)
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#define INIT_LABEL_REG_10(_op, _type) \
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INIT_LABEL_REG_9(_op, _type) \
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_op(_type, 10)
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/**
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* @ingroup los_init_info
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* @brief Define a set of levels and initialize the labels of each level.
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*
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* @par Description:
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* This API is used to define a set of levels and initialize the labels of each level.
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* @attention
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* <ul>
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* <li>This interface is used to add a new startup framework.</li>
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* <li>To use this interface, you need to add a corresponding section description in
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* the liteos.ld and liteos_llvm.ld files to match </li>
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* </ul>
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*
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* @param _type [IN] Type name of startup framework.
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* @param _num [IN] The maximum effective level of the startup framework, the level range is [0, _num].
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* @param _list [IN] Static global array, used to manage labels at all levels.
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*
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* @retval None
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* @par Dependency:
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* <ul><li>los_task_info.h: the header file that contains the API declaration.</li></ul>
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* @see
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*/
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#define OS_INIT_LEVEL_REG(_type, _num, _list) \
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INIT_LABEL_REG_##_num(EXTERN_LABEL, _type) \
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STATIC struct ModuleInitInfo* _list [] = { \
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INIT_LABEL_REG_##_num(GET_LABEL, _type) \
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}
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#endif /* _LOS_INIT_INFO_H */
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