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7138f340b2
This patch focuses on the ARM64 general context handling code. The modifications are aimed at enhancing performance by simplifying context save/restore operations. Changes include: - Adjusted stack alignment in `arch_set_thread_context` function. - Updated `lwp_gcc.S` to reset frame pointer and link register. - Refined `rt_hw_backtrace_frame_unwind` to handle user space address checks. - Added `GET_THREAD_SELF` macro in `asm-generic.h`. - Simplified context saving/restoring in `context_gcc.h` and related files. - Optimized `rt_hw_context_switch_interrupt` and related assembly routines. Signed-off-by: Shell <smokewood@qq.com>
64 lines
1.3 KiB
ArmAsm
64 lines
1.3 KiB
ArmAsm
/*
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* Copyright (c) 2006-2020, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2024-03-28 Shell Move vector handling codes from context_gcc.S
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*/
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#ifndef __ASSEMBLY__
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#define __ASSEMBLY__
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#endif
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#include "../include/vector_gcc.h"
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#include "context_gcc.h"
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#include <rtconfig.h>
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#include <asm-generic.h>
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#include <asm-fpu.h>
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#include <armv8.h>
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.section .text
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.align 8
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.globl vector_fiq
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vector_fiq:
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SAVE_IRQ_CONTEXT
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bl rt_hw_trap_fiq
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RESTORE_IRQ_CONTEXT
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.globl rt_interrupt_enter
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.globl rt_interrupt_leave
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.globl rt_thread_switch_interrupt_flag
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.globl rt_interrupt_from_thread
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.globl rt_interrupt_to_thread
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.globl rt_hw_context_switch_interrupt_do
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.align 8
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.globl vector_irq
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vector_irq:
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SAVE_IRQ_CONTEXT
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bl rt_interrupt_enter
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bl rt_hw_trap_irq
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bl rt_interrupt_leave
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/**
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* if rt_thread_switch_interrupt_flag set, jump to
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* rt_hw_context_switch_interrupt_do and don't return
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*/
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ldr x1, =rt_thread_switch_interrupt_flag
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ldr x2, [x1]
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cmp x2, #1
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b.ne vector_irq_exit
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mov x2, #0 // clear flag
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str x2, [x1]
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bl rt_hw_context_switch_interrupt_do
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vector_irq_exit:
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RESTORE_IRQ_CONTEXT_WITHOUT_MMU_SWITCH
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