Messages in this thread Patch in this message |  | | | Date | Thu, 9 Mar 2000 00:19:16 +0100 | | From | Pavel Machek <> | | Subject | Re: Allow debuger to examine real parent |
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Hi!
> > It doesn't. ps reports the tracing process as the parent, rather than > > reporting the original parent as the parent. AFAIK, ps gets its info from > > /proc, and you can verify that every occurrence of 'pptr' in the proc code is > > 'p_pptr' (referring to the parent) rather than p_opptr (referring to the > > original parent). > > Hmm.. That's probably a bug. It would probably be best to export the > original parent in the /proc setup, and make the "debugging parent" > possibly visible some way (but the original parent should be the normal > one).
Ok, it is a bug and here is a fix:
--- clean/fs/proc/array.c Fri Feb 11 23:11:41 2000 +++ linux/fs/proc/array.c Thu Mar 9 00:11:08 2000 @@ -151,12 +151,13 @@ "State:\t%s\n" "Pid:\t%d\n" "PPid:\t%d\n" + "TracerPid:\t%d\n" "Uid:\t%d\t%d\t%d\t%d\n" "Gid:\t%d\t%d\t%d\t%d\n" "FDSize:\t%d\n" "Groups:\t", get_task_state(p), - p->pid, p->p_pptr->pid, + p->pid, p->p_opptr->pid, p->p_pptr->pid != p->p_opptr->pid ? p->p_opptr->pid : 0, p->uid, p->euid, p->suid, p->fsuid, p->gid, p->egid, p->sgid, p->fsgid, p->files ? p->files->max_fds : 0); @@ -327,7 +328,7 @@ task->pid, task->comm, state, - task->p_pptr->pid, + task->p_opptr->pid, task->pgrp, task->session, task->tty ? kdev_t_to_nr(task->tty->device) : 0, Pavel -- I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care." Panos Katsaloulis describing me w.r.t. patents me at discuss@linmodems.org
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