On Fri, Oct 25, 2013 at 1:50 PM, Rusty Russell [off-list ref] wrote:

Ming Lei [off-list ref] writes:

quoted

On Fri, Oct 25, 2013 at 7:08 AM, Rusty Russell [off-list ref] wrote:

quoted

Sorry, I was imprecise.  I was referring to the kernel's kallsyms
tables produced by scripts/kallsyms.c.  This patch left them in the
the kallsyms tables and filtered them out from /proc/kallsyms.

Yes, but it isn't easy to do it by script/kallsyms.c , and IMO, it should
be correct to hide them for user space but keep them in kallsyms table.

So they'll appear in backtraces?  And turn up randomly for other symbol
dereferences?

I don't think you really want this!

Basically these symbols are only used to generate code, and in
kernel mode, CPU won't run into the corresponding addresses
because the generate code is copied to other address during booting,
so I understand they won't appear in backtraces.


Thanks,
-- 
Ming Lei