动态链接和静态链接的指令点值 [英] instruction point value of dynamic linking and static linking

问题描述

通过使用 Intel 的 pin，我打印出具有动态链接和静态链接的程序的指令指针 (ip) 值.

By using Intel's pin, I printed out the instruction pointer (ip) values for a program with dynamic linking and static linking.

而且我发现他们的ip值大不相同，即使它们是同一个程序.

And I've found that their ip values are quite different, even though they are the same program.

具有静态链接的程序的第一个 ip 值显示为 0x400f50.

A program with static linking shows 0x400f50 for its very first ip value.

但是一个带有动态链接的程序的第一个 ip 值显示为 0x7f94f0762090

but a program with dynamic linking shows 0x7f94f0762090 for its first ip value

我不知道为什么他们有这么大的差距.

I am not sure why they have that quite a large gap.

如果有人能帮我找出原因，将不胜感激

It would be appreciated if anyone could help me find out the reason

推荐答案

我不知道为什么他们有这么大的差距.

I am not sure why they have that quite a large gap.

因为动态链接的程序不会在二进制中开始执行:在控制转移到 _start 之前，在动态链接器 (ld-linux) 中执行前几千条指令 在主可执行文件中.

Because a dynamically linked program does not start executing in the binary: the first few thousands of instructions are executed in the dynamic linker (ld-linux), before control is transferred to _start in the main executable.

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