Bug 1315

Summary:	support pid filtering
Product:	systemtap	Reporter:	Martin Hunt <hunt>
Component:	translator	Assignee:	Unassigned <systemtap>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	P2
Version:	unspecified
Target Milestone:	---
Host:		Target:
Build:		Last reconfirmed:

Description Martin Hunt 2005-09-07 19:16:28 UTC

We need some way of filtering kprobes based on pid.  It might be part of a more
general-purpose kprobe predicate system

for just filtering on pids, something like the following would be a minimum:

if (!_stp_target || in_interrupt() || (_stp_target == current->pid ||
_stp_target == current->parent->pid))

Comment 1 Frank Ch. Eigler 2006-11-09 16:53:37 UTC

This should include the dtrace-flavoured progenyof() and similar predicates.

Comment 2 Frank Ch. Eigler 2007-08-17 02:25:30 UTC

Committed a variant of the idea: target_set.stp tapset.