setdetach-on-fork onsetfollow-fork-mode childsetbreakpoint pending on b _start attach$parent_pidfile childcontinue 首先告诉 gdb 跟踪子进程;然后设置set breakpoint pending on是为了在设置断点时让 gdb 不强制在对符号下断点时就需要固定地址,这样在b _start时就会 pending 而不是报错;最后再连接到父进程...
When the child process is created with clone(), it executes the function fn(arg). (This differs from fork(2), where execution continues in the child from the point of the fork(2) call.) The fn argument is a pointer to a function that is called by the child process at the beginning...
在2.5.60版Linux内核之后,GDB对使用fork、vfork创建子进程的程序提供了follow-fork-mode选项来支持多进程调试。follow-fork-mode的用法为set follow-fork-mode [parent|child] parent调试父进程,子进程不受影响 child调试子进程,父进程不受影响 我们需要调试子进程,所以在启动GDB后,set follow-fork-modechild...
根据其说法,使用 set follow-fork-mode child即可。这是一个 gdb 命令,其目的是告诉 gdb 在目标应用调用fork之后接着调试子进程而不是父进程,因为在 Linux 中fork系统调用成功会返回两次,一次在父进程,一次在子进程。我们来试一下,直接断点在 strcpy 符号中: gdb ...
GDB has a command called set follow-fork-mode child that instructs GDB to follow the forked process. I couldn't find a way to do this with this plugin. I tried adding various permutations of "-exec set follow-fork-mode child" to the setu...
parent off 同时调试两个进程,子进程暂停在fork位置 child off 同时调试两个进程,父进程暂停在fork位置 进程间的切换info inferiors:查看当前运行在那个进程上inferiors numinferiors [num]:切换进程,当前进程被挂起remove-inferiors [num]:删除进程-detach-inferiors [num]:注销进程kill-inferiors [num] :删除...
follow-fork-mode detach-on-fork 说明 parent on GDB默认的调试模式:只调试主进程 child on 只调试子进程 parent off 同时调试两个进程,gdb跟主进程,子进程block在fork位置 child off 同时调试两个进程,gdb跟子进程,主进程block在fork位置 也可将前面的set添加到~/.gdbinit来打开non-stop模式: ...