Messages in this thread | | | Date | Sun, 24 Nov 2013 16:32:53 +0900 | From | Masami Hiramatsu <> | Subject | Re: [PATCH 1/1] tracing: Introduce "pseudo registers" for FETCH_MTD_reg |
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(2013/11/24 5:16), Oleg Nesterov wrote: > The probe can dump the registers or memory, but it is not possible > to dump, say, current->pid. This patch adds the pseudo regs table, > currently it has only two methods to get current/smp_processor_id > but it can be trivially extended.
Good catch! :)
> This syntax is %%pseudo-reg-name, I agree in advance with any other > naming.
For this kind of use, kprobe-tracer already provides '$' prefix :) e.g. $stack, $retval etc. Please see parse_probe_vars in trace_probe.c.
So, $current and $cpu is better for me.
Thank you,
-- 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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