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34 lines
827 B
ArmAsm
34 lines
827 B
ArmAsm
#include"../common/asm.h"
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/**
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* @brief 导出内核线程的执行引导程序
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* 目的是还原执行现场(在kernel_thread中伪造的)
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* 执行到这里时，rsp位于栈顶，然后弹出寄存器值
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* 弹出之后还要向上移动7个unsigned long的大小，从而弹出额外的信息（详见pt_regs）
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*/
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ENTRY(kernel_thread_func)
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popq %r15
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popq %r14
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popq %r13
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popq %r12
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popq %r11
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popq %r10
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popq %r9
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popq %r8
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popq %rbx
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popq %rcx
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popq %rdx
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popq %rsi
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popq %rdi
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popq %rbp
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popq %rax
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movq %rax, %ds
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popq %rax
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movq %rax, %es
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popq %rax
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addq $0x38, %rsp
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movq %rdx, %rdi
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callq *%rbx
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movq %rax, %rdi
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callq process_do_exit
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