Date: Fri, 11 Feb 2022 14:10:30 +0000 (UTC) From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: dtrace@freebsd.org Subject: DTrace, kernel loader, unknown probes, enable on load? Message-ID: <alpine.BSF.2.00.2202111403340.68830@ai.fobar.qr>
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Hi, one of the drawbacks of Dtrace (and other tracing frameworks out there on various OSes) is that they do need a list of probes upfront before they can enable. Say I want to trace a kernel module from the moment it is loaded, that is currently not possible. What I am wondering is how hard it would be to "ignore" unknown probes but enable them the moment on loading matching ones. I assume that will probably need a callback through user space to complicate things but it should not be impossible. In case anyone has some spare time to draft this up, I'll be happily a first tester; otherwise the idea is out at least for someone to find it one day ... Lots of health, /bz -- Bjoern A. Zeeb r15:7home | help
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