gcc 段寄存器传值 core

tom916

1. #include <stdio.h>
   
2. void main(){
   
3. 
   
4.     int result1  = 0;
   
5.     int result2  = 0;
   
6.     int i = 1;
   
7.     __asm__  __volatile__ ("mov %%gs:%P1 , %%eax" :"=a"(result1) :"n"(1));
   
8. 
   
9.     //为啥运行到这里就 core
   
10.     __asm__  __volatile__ ("mov %%gs:%P1,%0" :"=a"(result2) :"m"(i));
    
11. 
    
12.     printf("Result: %x %x \n", result1,result2);
    
13. }     

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