计算内核地址偏移脚本 

 1 #!/bin/bash
 2 
 3 #
 4 # toUpper str
 5 #
 6 function toUpper() {
 7     echo "$1" | awk '{print toupper($0)}'
 8 }
 9 #
10 # getDiff var1 var2
11 #
12 function getDiff() {
13     echo "obase=16;ibase=16;$(toUpper $1)- $(toUpper $2)" | bc
14 }
15 echo ".text .data .bss /proc/kallsyms"
16 echo $(cat /proc/kallsyms | grep '_stext' | awk '{print $1}')
17 echo $(cat /proc/kallsyms | grep '_sdata' | awk '{print $1}')
18 echo $(cat /proc/kallsyms | grep '_sinittext' | awk '{print $1}')
19 
20 var1=$(cat /proc/kallsyms | grep '_stext' | awk '{print $1}')
21 var2=$(cat /boot/System.map-`uname -r` | grep '_stext' | awk '{print $1}')
22 
23 echo -e "\nkernel base diff :$(getDiff $var1  $var2)"

 

posted @ 2021-10-13 11:13  maojun1998  阅读(88)  评论(0)    收藏  举报