[Added Ingo, Peter and Arnaldo for opinions on the symbol exports - or
lack of]
On 8/28/13 4:53 PM, Chris Freehill wrote:
Another way to ask this, is why are these symbols no longer exported
(previously exported in core.c with EXPORT_SYMBOL_GPL), and how are
people who built lkm's using the previously existing interface
supposed to port them? Is it perhaps documented somewhere? I have not
been able to find this via google or in git comments.
Is this the wrong forum for this question (which I grant may be a
"newbie" question), or is there just no good answer?
thanks,
chris
I am trying to get my linux kernel module that extends perf support to work
in a later kernel version. The lkm had been working in 3.0.51.
In the new target kernel to which I am trying to port, 3.8.13, I get
warnings at the modpost stage complaining about symbols that can no longer
be found. If I attempt to load that module, I get errors saying the same
thing (those symbols can't be found).
The symbols that can't be found are
".perf_pmu_enable"
".perf_event_update_userpage"
".perf_pmu_disable"
".perf_event_overflow"
".perf_pmu_unregister"
".perf_pmu_register"
Does anyone have any tips or advice as to how code that calls these
previously working functions should now be handled when built against later
kernels?
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