* [Bug runtime/21887] New: bpf: exit()
@ 2017-08-02 18:07 fche at redhat dot com
2017-10-03 21:04 ` [Bug runtime/21887] " amerey at redhat dot com
0 siblings, 1 reply; 2+ messages in thread
From: fche at redhat dot com @ 2017-08-02 18:07 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=21887
Bug ID: 21887
Summary: bpf: exit()
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
Assignee: systemtap at sourceware dot org
Reporter: fche at redhat dot com
Target Milestone: ---
The bpf runtime doesn't support an exit operation. This would require a piece
of shared state between the bpf runtime and stapbpf userspace; probably a
designated bpf map object. (Maybe we need a map that has such metadata, and
per-probe hit counts, etc.; the kind of stuff stap -t uses.)
The exit() %{ /* bpf */ %} variant function would set that global; bpf probe
handlers would check it and abort if set (to avoid triggering new probe
handlers after one of them calls exit()); stapbpf userspace would poll it
periodically (instead of just sitting in pause()).
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* [Bug runtime/21887] bpf: exit()
2017-08-02 18:07 [Bug runtime/21887] New: bpf: exit() fche at redhat dot com
@ 2017-10-03 21:04 ` amerey at redhat dot com
0 siblings, 0 replies; 2+ messages in thread
From: amerey at redhat dot com @ 2017-10-03 21:04 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=21887
Aaron Merey <amerey at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |amerey at redhat dot com
Resolution|--- |FIXED
--- Comment #1 from Aaron Merey <amerey at redhat dot com> ---
Added in commit cf8d5f1d90e78.
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