2022-04-25 16:25:15 +00:00
|
|
|
|
#include"../common/asm.h"
|
|
|
|
|
|
|
2022-04-27 12:49:10 +00:00
|
|
|
|
/**
|
|
|
|
|
|
* @brief 导出内核线程的执行引导程序
|
|
|
|
|
|
* 目的是还原执行现场(在kernel_thread中伪造的)
|
|
|
|
|
|
* 执行到这里时，rsp位于栈顶，然后弹出寄存器值
|
|
|
|
|
|
* 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）
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
2022-04-25 16:25:15 +00:00
|
|
|
|
ENTRY(kernel_thread_func)
|
|
|
|
|
|
popq %r15
|
|
|
|
|
|
popq %r14
|
|
|
|
|
|
popq %r13
|
|
|
|
|
|
popq %r12
|
|
|
|
|
|
popq %r11
|
|
|
|
|
|
popq %r10
|
|
|
|
|
|
popq %r9
|
|
|
|
|
|
popq %r8
|
|
|
|
|
|
popq %rbx
|
|
|
|
|
|
popq %rcx
|
|
|
|
|
|
popq %rdx
|
|
|
|
|
|
popq %rsi
|
|
|
|
|
|
popq %rdi
|
|
|
|
|
|
popq %rbp
|
|
|
|
|
|
popq %rax
|
|
|
|
|
|
movq %rax, %ds
|
|
|
|
|
|
popq %rax
|
|
|
|
|
|
movq %rax, %es
|
|
|
|
|
|
popq %rax
|
|
|
|
|
|
addq $0x38, %rsp
|
|
|
|
|
|
movq %rdx, %rdi
|
|
|
|
|
|
callq *%rbx
|
|
|
|
|
|
movq %rax, %rdi
|
|
|
|
|
|
callq process_thread_do_exit
|
