Re: [PATCH 1/2] perf symbol: Set binary_type of dso when loading

From: Alexander Monakov
Date: Fri Sep 20 2024 - 13:04:22 EST


Hi,

On Fri, 26 Apr 2024, Namhyung Kim wrote:

> For the kernel dso, it sets the binary type of dso when loading the
> symbol table. But it seems not to do that for user DSOs. Actually
> it sets the symtab type only. It's not clear why we want to maintain
> the two separately but it uses the binary type info before getting
> the disassembly.
>
> Let's use the symtab type as binary type too if it's not set. I think
> it's ok to set the binary type when it founds a symsrc whether or not
> it has actual symbols.
>
> Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>

Any chance this can be applied and propagated to stable? Annotating
functions outside of the main executable is broken otherwise (regressed
since 873a83731f1c ("perf annotate: Skip DSOs not found")).

Tested-by: Alexander Monakov <amonakov@xxxxxxxxx>

> ---
> tools/perf/util/symbol.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
> index 7772a4d3e66c..63936269ec15 100644
> --- a/tools/perf/util/symbol.c
> +++ b/tools/perf/util/symbol.c
> @@ -1927,6 +1927,9 @@ int dso__load(struct dso *dso, struct map *map)
> if (next_slot) {
> ss_pos++;
>
> + if (dso__binary_type(dso) == DSO_BINARY_TYPE__NOT_FOUND)
> + dso__set_binary_type(dso, symtab_type);
> +
> if (syms_ss && runtime_ss)
> break;
> } else {
>