Messages in this thread | | | Date | Wed, 27 Nov 2013 20:22:40 +0900 | From | Masami Hiramatsu <> | Subject | Re: modules, add_kallsyms() && DEFINE_PER_CPU |
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(2013/11/27 17:20), Namhyung Kim wrote: > Hi Masami, > > On Wed, 27 Nov 2013 11:23:43 +0900, Masami Hiramatsu wrote: >> (2013/11/27 2:50), Oleg Nesterov wrote: >>> On 11/26, Oleg Nesterov wrote: >>>> >>>> Note: this doesn't work for modules, but module's per-cpu data is >>>> not visible for kallsyms_lookup_name() anyway. >>> >>> Rusty, I am just curious if it makes sense to change this or not... >>> >>> But DEFINE_PER_CPU'ed symbols are ignored by add_kallsyms(). I guess >>> this is because is_core_symbol() requires "sh_flags & SHF_ALLOC". >>> And probably because of INIT_OFFSET_MASK. >> >> Oleg, I think you can do it by using is_module_percpu_address(). :) > > It seems the function only works for a translated address like > is_kernel_percpu_address() does. But we want to check a not-yet- > translated symbol address, right?
Ah, got it. Thanks to pointed! :)
-- Masami HIRAMATSU IT Management Research Dept. Linux Technology Center Hitachi, Ltd., Yokohama Research Laboratory E-mail: masami.hiramatsu.pt@hitachi.com
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