Re: 'perf probe' and symbols from .text.<something>

[Masami Hiramatsu]

Hi,

On Tue, 23 Feb 2021 00:05:08 +0900
Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote:

>   ----
> /* Adjust symbol name and address */
> static int post_process_probe_trace_point(struct probe_trace_point *tp,
>                                            struct map *map, unsigned long offs)
> {
>         struct symbol *sym;
>         u64 addr = tp->address - offs;
> 
>         sym = map__find_symbol(map, addr);
>         if (!sym)
>                 return -ENOENT;
>   ----
> 
> So it seems "map" may not load the symbol out of ".text".
> This need to be fixed, since the map is widely used in the perf.

OK, I found a root cause of this issue.
dso__process_kernel_symbol() (which invoked from map__load() path) only adds the
symbols in ".text" section to the symbol list. It must be fixed.

Thank you,

-- 
Masami Hiramatsu <mhiramat@xxxxxxxxxx>