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Semantic error on probe module("foo").function("bar")
- From: Christian Pössinger <poessinger at mixed-mode dot de>
- To: systemtap at sourceware dot org
- Date: Sun, 12 Sep 2010 14:56:21 +0200 (CEST)
- Subject: Semantic error on probe module("foo").function("bar")
- Reply-to: poessinger at mixed-mode dot de
Hello *,
I'm quiet new to systemtap and trying to understand how everything works
out. I want to connect a probe to a kernel module (mplex-stap) and access
a function within that module.
probe module("mplex-stap").function("mplex_fop_ioctl").return {...}
When I compile the module and load it (either as a out of tree module, or
throuth CONFIG_SAMPLES with the kernel build system) the module loads just
fine, but calling STAP always results in:
semantic error: missing i386 kernel/module debuginfo under
'/lib/modules/2.6.32.9-lttng-0.198/build' while resolving probe point
module("mplex-stap").function("mplex_fop_ioctl").return
Working with probes that tap into syscall.* work like a charm. Am I
missing something in my build system for my own module?
Best Regards,
Christian