Re: [PATCH 2/2] perf:tools: figure out start address of kernel map from /proc/kallsyms

[Arnaldo Carvalho de Melo <acme@ghostprotocols.net>]

Em Wed, Nov 24, 2010 at 10:38:29PM +0800, Ming Lei escreveu:
> 2010/11/24 Arnaldo Carvalho de Melo <acme@ghostprotocols.net>:
> > Can you please use kallsyms__parse()? Please take a look at
> > event__synthesize_kernel_mmap as it also uses it.
> 
> Good idea, but kallsyms__parse does not pass a parameter
> which indicates if it is a module or kernel symbol to process handler.
> 
> So could you agree on adding one parameter which indicates if
> the current symbol is module symbol to process handler?
> 
> If so, I can use kallsyms__parse.

It passes, for a line like:

ffffffffa00361ce t serio_raw_connect	[serio_raw]

The process callback will receive:

process_symbol(arg=callback arg,
               symbol_name="serio_raw_connect    [serio_raw]",
               symbol_type='T', start=0xffffffffa00361ce)

That is how we figure out if it is a module when splitting the kallsyms
into modules, as kallsyms__parse is also used in:

	dso__load_kallsyms
          dso__load_all_kallsyms
             kallsyms__parse

- Arnaldo