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SubjectRe: [PATCH 05/15 V3] perf, c2c: Rework setup code to prepare for features
Date
On Sat, 29 Mar 2014 18:10:18 +0100, Jiri Olsa wrote:
> On Mon, Mar 24, 2014 at 03:36:56PM -0400, Don Zickus wrote:
>
> SNIP
>
>>
>> static int perf_c2c__process_load_store(struct perf_c2c *c2c,
>> + struct addr_location *al,
>> struct perf_sample *sample,
>> - struct addr_location *al)
>> + struct perf_evsel *evsel)
>> {
>> - if (c2c->raw_records)
>> - perf_sample__fprintf(sample, ' ', "raw input", al, stdout);
>> + struct mem_info *mi;
>> +
>> + mi = sample__resolve_mem(sample, al);
>> + if (!mi)
>> + return -ENOMEM;
>
> perhaps not directly related to this patchset, but I needed
> attached patch to get resolved data in .bss (static), which
> for some reason happened to be located in executable segment

Wasn't it a read-only/const data?

Hmm.. maybe we could copy the text map and add it to a variable map
group if it has any variables in it..

Thanks,
Namhyung

>
> I wonder why we need this VARIABLE/FUNCTION separation at all,
> I think Arnaldo told me some archs could have same addresses
> for data and functions.. will check ;-)
>
> jirka
>
> ---
> diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
> index d9d86c6..be6d7cf 100644
> --- a/tools/perf/util/machine.c
> +++ b/tools/perf/util/machine.c
> @@ -1220,6 +1220,10 @@ static void ip__resolve_data(struct machine *machine, struct thread *thread,
>
> thread__find_addr_location(thread, machine, m, MAP__VARIABLE, addr,
> &al);
> + if (!al.map)
> + thread__find_addr_location(thread, machine, m, MAP__FUNCTION, addr,
> + &al);
> +
> ams->addr = addr;
> ams->al_addr = al.addr;
> ams->sym = al.sym;


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