On 5/12/06, Vishal Sharda <Vishal_Sharda@xxxxxxxxxxx> wrote:
I am debugging an executable/process A (using gdb), which after sometime forks and execs process B. Now I want to break at main of process B. How can that be achieved? Thanks. Regards, Vishal. P.S.: This is not related to kernel though but I am posting it here in the anticipation of answer from veterans. **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS***
I think this is the one way to debug child process. Put a call to sleep in the code which the child process executes after the fork. It may be useful to sleep only if a certain environment variable is set, or a certain file exists, so that the delay need not occur when you don't want to run GDB on the child. While the child is sleeping, use the ps program to get its process ID. Then tell GDB (a new invocation of GDB if you are also debugging the parent process) to attach to the child process (see section Debugging an already-running process). From that point on you can debug the child process just like any other process which you attached to. You can follow this mailing list also. http://www.codecomments.com/archive286-2005-7-542164.html Thanks Manjunath Naik. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
