Konstantin Belousov d735998057 Correct the problems with the ptrace(2) making the debuggee an orphan. ... One problem is inferior(9) looping due to the process tree becoming a graph instead of tree if the parent is traced by child. Another issue is due to the use of p_oppid to restore the original parent/child relationship, because real parent could already exited and its pid reused (noted by mjg). Add the function proc_realparent(9), which calculates the parent for given process. It uses the flag P_TREE_FIRST_ORPHAN to detect the head element of the p_orphan list and than stepping back to its container to find the parent process. If the parent has already exited, the init(8) is returned. Move the P_ORPHAN and the new helper flag from the p_flag* to new p_treeflag field of struct proc, which is protected by proctree lock instead of proc lock, since the orphans relationship is managed under the proctree_lock already. The remaining uses of p_oppid in ptrace(PT_DETACH) and process reapping are replaced by proc_realparent(9). Phabric: D417 Reviewed by: jhb Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 2 weeks		2014-08-07 05:47:53 +00:00
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extern.h	Include the thread name along with the command name when displaying the	2013-01-18 18:24:40 +00:00
fmt.c	- Move 'showthreads' check out of fmt.c.	2013-01-19 00:21:55 +00:00
keyword.c	Add support for inspecting process flags set in p_flag2.	2014-06-06 22:52:11 +00:00
Makefile	Add -J to filter by matching jail IDs and names.	2014-05-02 15:05:47 +00:00
nlist.c
print.c	Don't test arrays for being NULL.	2013-10-21 09:12:04 +00:00
ps.1	Correct the problems with the ptrace(2) making the debuggee an orphan.	2014-08-07 05:47:53 +00:00
ps.c	Add -J to filter by matching jail IDs and names.	2014-05-02 15:05:47 +00:00
ps.h