《操作系统》的实验代码。
 
 
 
 
 

40 строки
1.0 KiB

#include <stdio.h>
void A();
void B(int a, int b, int c);
int main()
{
A();
return 0;
}
void A()
{
unsigned int a = 1;
unsigned int b = 2;
unsigned int c = 3;
B(a,b,c);
}
void B(int d, int e, int f)
{
int g;
unsigned int _ebp;
__asm__(
"movl %%ebp,%0\n\t" \
:"=r" (_ebp));
g=4;
printf(" [ebp-12] --?? = %p --- %d \n [ebp-08] --?? = %p --- %d \n [ebp-04] --?? = %p --- %d \n [ebp+00] -oebp= %p --- %p \n [ebp+04] -ret = %p --- %p \n [ebp+08] -- d = %p --- %d \n [ebp+12] -- e = %p --- %d \n [ebp+16] -- f = %p --- %d \n ",
(unsigned *)(_ebp-12), *(unsigned *)(_ebp-12),
(unsigned *)(_ebp-8), *(unsigned *)(_ebp-8),
(unsigned *)(_ebp-4), *(unsigned *)(_ebp-4),
(unsigned *)(_ebp), *(unsigned *)(_ebp),
(unsigned *)(_ebp+4), *(unsigned *)(_ebp+4),
(unsigned *)(_ebp+8), *(unsigned *)(_ebp+8),
(unsigned *)(_ebp+12), *(unsigned *)(_ebp+12),
(unsigned *)(_ebp+16), *(unsigned *)(_ebp+16));
}