los_init.h

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/* ----------------------------------------------------------------------------
 * Copyright (c) Huawei Technologies Co., Ltd. 2023-2023. All rights reserved.
 * Description: Los Init Headfile
 * Author: Huawei LiteOS Team
 * Create: 2023-02-10
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * --------------------------------------------------------------------------- */
 
#ifndef _LOS_INIT_H
#define _LOS_INIT_H
 
#include "los_typedef.h"
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
typedef UINT32 (*SysInitcallFunc)(VOID);
 
extern SysInitcallFunc __sysinitcall_start[];
extern SysInitcallFunc __sysinitcall0_start[];
extern SysInitcallFunc __sysinitcall1_start[];
extern SysInitcallFunc __sysinitcall2_start[];
extern SysInitcallFunc __sysinitcall3_start[];
extern SysInitcallFunc __sysinitcall4_start[];
extern SysInitcallFunc __sysinitcall5_start[];
extern SysInitcallFunc __sysinitcall6_start[];
extern SysInitcallFunc __sysinitcall7_start[];
extern SysInitcallFunc __sysinitcall_end[];
 
#define ATTRIBUTE_USED  __attribute__((__used__))
#define DO_INITCALL(fn, level) \
    SysInitcallFunc initFn_##fn ATTRIBUTE_USED __attribute__((section(".sysinitcall"#level".init"))) = fn
 
#define CREATE_INITCALL(fn, level, sync)    DO_INITCALL(fn, _level##level##_##sync)
#define SYS_INITCALL(fn, level, sync)       CREATE_INITCALL(fn, level, sync)
 
#define SYS_INIT_LEVEL_EARLY                0 /* reserved before kernel init */
#define SYS_INIT_LEVEL_AHEAD                1 /* prepare for initialization and debug tool init */
#define SYS_INIT_LEVEL_ARCH                 2 /* arch and platform initialization */
#define SYS_INIT_LEVEL_KERNEL               3 /* system basic module need init earlier */
#define SYS_INIT_LEVEL_KERNEL_ADDITION      4 /* system additional module init, rely on kernel */
#define SYS_INIT_LEVEL_COMPONENT            5 /* component level used for fs drivers compat and so on */
#define SYS_INIT_LEVEL_APP                  6 /* application init */
#define SYS_INIT_LEVEL_RESERVE              7 /* reserved after kernel init */
 
#define SYS_INIT_SYNC_0     s0
#define SYS_INIT_SYNC_1     s1
#define SYS_INIT_SYNC_2     s2
#define SYS_INIT_SYNC_3     s3
#define SYS_INIT_SYNC_4     s4
 
#define LOS_SYS_INIT(func, level, sync) SYS_INITCALL(func, level, sync)
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* _LOS_INIT_H */