使用ptrace获取rip寄存器的值,C语言,x64架构
时间: 2023-12-10 08:37:19 浏览: 287
在x64架构下,rip寄存器存储的是当前指令的地址,因此可以使用ptrace函数获取当前进程rip寄存器的值。
以下是一个简单的示例代码:
```c
#include <stdio.h>
#include <sys/ptrace.h>
#include <sys/user.h>
int main() {
pid_t pid = 1234; // 进程PID
struct user_regs_struct regs;
if (ptrace(PTRACE_ATTACH, pid, NULL, NULL) == -1) {
perror("ptrace attach");
return 1;
}
if (waitpid(pid, NULL, 0) == -1) {
perror("waitpid");
return 1;
}
if (ptrace(PTRACE_GETREGS, pid, NULL, ®s) == -1) {
perror("ptrace getregs");
return 1;
}
printf("RIP: %lx\n", regs.rip);
if (ptrace(PTRACE_DETACH, pid, NULL, NULL) == -1) {
perror("ptrace detach");
return 1;
}
return 0;
}
```
该代码通过调用ptrace函数,首先附加到指定的进程,然后等待进程暂停,获取进程的寄存器信息,最后打印出rip寄存器的值。注意,此处使用了`struct user_regs_struct`结构体来存储寄存器值,其中rip寄存器的值对应`regs.rip`。最后,还需要使用ptrace函数将进程从跟踪模式中分离出来。
阅读全文
相关推荐


















