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LiteOS-Reading/文豪/cppsupport/los_cppsupport.c

75 lines
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/* ----------------------------------------------------------------------------
* Copyright (c) Huawei Technologies Co., Ltd. 2013-2019. All rights reserved.
* Description: LiteOS Cpp Support Implementation
* Author: Huawei LiteOS Team
* Create: 2013-01-01
* 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.
* --------------------------------------------------------------------------- */
#include "los_cppsupport_pri.h"
#include "los_printf.h"
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */
typedef VOID (*InitFunc)(VOID);
/*-------------------------------------------
*`LITE_OS_SEC_TEXT_MINOR`<60><>`UINTPTR`<60>ȡ<EFBFBD>
*<2A><>`LOS_CppSystemInit`<60><><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*<2A><><EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD><CEB5><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><D0A9>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD><EFBFBD><EFBFBD>`flag`<60><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ض<EFBFBD><D8B6><EFBFBD>λ<EFBFBD><CEBB>ִ<EFBFBD>г<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*--------------------------------------------*/
LITE_OS_SEC_TEXT_MINOR INT32 LOS_CppSystemInit(UINTPTR initArrayStart, UINTPTR initArrayEnd, INT32 flag)
{
UINTPTR fastEnd = (UINTPTR)&__fast_end;
UINTPTR *start = (UINTPTR *)initArrayStart;
InitFunc initFunc = NULL;
#ifdef LOSCFG_AARCH64
__register_frame(__EH_FRAME_BEGIN__);
#endif
for (; start != (UINTPTR *)initArrayEnd; ++start) {
if ((flag == BEFORE_SCATTER) && ((UINTPTR)*start > fastEnd)) {
continue;
} else if ((flag == AFTER_SCATTER) && ((UINTPTR)*start <= fastEnd)) {
continue;
}
initFunc = (InitFunc)(*start);
initFunc();
}
return 0;
}
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */