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- /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date Author Notes
- * 2018-10-06 ZhaoXiaowei the first version
- * 2024-03-28 Shell Move vector handling codes from context_gcc.S
- */
- #ifndef __ASSEMBLY__
- #define __ASSEMBLY__
- #endif
- #include <rtconfig.h>
- .text
- .globl system_vectors
- .globl vector_exception
- .globl vector_irq
- .globl vector_fiq
- system_vectors:
- .align 11
- .set VBAR, system_vectors
- .org VBAR
- /* Exception from CurrentEL (EL1) with SP_EL0 (SPSEL=1) */
- .org (VBAR + 0x00 + 0)
- b vector_serror /* Synchronous */
- .org (VBAR + 0x80 + 0)
- b vector_serror /* IRQ/vIRQ */
- .org (VBAR + 0x100 + 0)
- b vector_serror /* FIQ/vFIQ */
- .org (VBAR + 0x180 + 0)
- b vector_serror /* Error/vError */
- /* Exception from CurrentEL (EL1) with SP_ELn */
- .org (VBAR + 0x200 + 0)
- b vector_exception /* Synchronous */
- .org (VBAR + 0x280 + 0)
- b vector_irq /* IRQ/vIRQ */
- .org (VBAR + 0x300 + 0)
- b vector_fiq /* FIQ/vFIQ */
- .org (VBAR + 0x380 + 0)
- b vector_serror
- /* Exception from lower EL, aarch64 */
- .org (VBAR + 0x400 + 0)
- b vector_exception
- .org (VBAR + 0x480 + 0)
- b vector_irq
- .org (VBAR + 0x500 + 0)
- b vector_fiq
- .org (VBAR + 0x580 + 0)
- b vector_serror
- /* Exception from lower EL, aarch32 */
- .org (VBAR + 0x600 + 0)
- b vector_serror
- .org (VBAR + 0x680 + 0)
- b vector_serror
- .org (VBAR + 0x700 + 0)
- b vector_serror
- .org (VBAR + 0x780 + 0)
- b vector_serror
- #include "include/vector_gcc.h"
- #define EFRAMEX x19
- START_POINT(vector_exception)
- SAVE_IRQ_CONTEXT
- mov EFRAMEX, sp
- SAVE_USER_CTX EFRAMEX, x0
- mov x0, EFRAMEX
- bl rt_hw_trap_exception
- RESTORE_USER_CTX EFRAMEX, x0
- /* do exception switch for IRQ/exception handlers */
- EXCEPTION_SWITCH sp, x0
- RESTORE_IRQ_CONTEXT
- eret
- START_POINT_END(vector_exception)
- START_POINT(vector_serror)
- SAVE_IRQ_CONTEXT
- mov EFRAMEX, sp
- SAVE_USER_CTX EFRAMEX, x0
- mov x0, EFRAMEX
- bl rt_hw_trap_serror
- RESTORE_USER_CTX EFRAMEX, x0
- NEVER_RETURN
- START_POINT_END(vector_serror)
- START_POINT(vector_irq)
- SAVE_IRQ_CONTEXT
- mov EFRAMEX, sp
- /* trace IRQ level */
- bl rt_interrupt_enter
- SAVE_USER_CTX EFRAMEX, x0
- /* handline IRQ */
- mov x0, EFRAMEX
- bl rt_hw_trap_irq
- RESTORE_USER_CTX EFRAMEX, x0
- /* restore IRQ level */
- bl rt_interrupt_leave
- mov x0, EFRAMEX
- bl rt_hw_vector_irq_sched
- b rt_hw_irq_exit
- START_POINT_END(vector_irq)
- rt_hw_irq_exit:
- .globl rt_hw_irq_exit
- /* do exception switch for IRQ/exception handlers */
- EXCEPTION_SWITCH sp, x0
- RESTORE_IRQ_CONTEXT
- eret
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