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ida中交叉引用的解析
2022-06-24 22:30:00 【华为云】
1.代码交叉引用
代码交叉引用的前缀为:CODE XREF如下图显示,箭头方向表示引用位置的相对方向。
每一个交叉引用的最后一位后缀表示引用的类型:
o 普通流 ,表示一条指令到另一条指令的顺序流
p 调用流,表示控制权被转交给目标函数,如BL等命令
j 跳转流,表示分支操作,常见于if等操作
- 数据交叉引用
数据交叉应用的前缀为:DATA XREF如下图所示,数据交叉引用
每一个交叉引用的最后一位后缀表示引用的类型
r 读取交叉引用,表示访问的是某个内存位置的内容
w 写入交叉引用,指出了修改变量内容的程序位置
o 偏移量交叉引用,表示引用的是某个位置的地址(而非内容)
- 交叉引用列表
Jump - Jump to xref 或快捷键X,将光标放在一个交叉引用的目标地址上,通过该快捷键可弹出交叉引用列表。

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