46 lines
1.4 KiB
ArmAsm
46 lines
1.4 KiB
ArmAsm
/*----------------------------------------------------------------------------
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* Tencent is pleased to support the open source community by making TencentOS
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* available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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* If you have downloaded a copy of the TencentOS binary from Tencent, please
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* note that the TencentOS binary is licensed under the BSD 3-Clause License.
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*
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* If you have downloaded a copy of the TencentOS source code from Tencent,
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* please note that TencentOS source code is licensed under the BSD 3-Clause
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* License, except for the third-party components listed below which are
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* subject to different license terms. Your integration of TencentOS into your
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* own projects may require compliance with the BSD 3-Clause License, as well
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* as the other licenses applicable to the third-party components included
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* within TencentOS.
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*---------------------------------------------------------------------------*/
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.global eclic_mtip_handler
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.global irq_entry
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.global trap_entry
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.extern SysTick_IRQHandler
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.align 2
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eclic_mtip_handler:
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/* normal code */
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// add sp, sp, -4
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// sw ra, (sp)
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// call SysTick_IRQHandler
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// lw ra, (sp)
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// add sp, sp, 4
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// ret
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/* the most efficient code */
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j SysTick_IRQHandler
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// the code will return to caller directly from SysTick_IRQHandler
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.align 2
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irq_entry:
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j irq_entry
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.align 2
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trap_entry:
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j trap_entry
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