Re: [PATCH V2 0/2] perf symbols: Slightly improve module file executable section mappings

From: Namhyung Kim
Date: Thu Feb 08 2024 - 00:26:33 EST


Hi Adrian,

On Tue, Feb 6, 2024 at 5:05 AM Adrian Hunter <adrian.hunter@xxxxxxxxx> wrote:
>
> Hi
>
> Currently perf does not record module section addresses except for
> the .text section. In general that means perf cannot get module section
> mappings correct (except for .text) when loading symbols from a kernel
> module file. (Note using --kcore does not have this issue)
>
> Here are a couple of patches to help shed light upon and slightly improve
> the situation.
>
>
> Changes in V2:
>
> perf tools: Make it possible to see perf's kernel and module memory mappings
> - add dump to perf report (if no browser) as well as perf script
> - add 'perf --debug kmaps' option also to dump kmaps
>
>
> Adrian Hunter (2):
> perf tools: Make it possible to see perf's kernel and module memory mappings
> perf symbols: Slightly improve module file executable section mappings

Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>

Thanks,
Namhyung

>
> tools/perf/Documentation/perf.txt | 2 ++
> tools/perf/builtin-report.c | 2 ++
> tools/perf/builtin-script.c | 3 ++
> tools/perf/util/debug.c | 3 ++
> tools/perf/util/debug.h | 1 +
> tools/perf/util/python.c | 1 +
> tools/perf/util/session.c | 11 ++++++
> tools/perf/util/session.h | 2 ++
> tools/perf/util/symbol-elf.c | 75 +++++++++++++++++++++++++++++++++++++--
> 9 files changed, 98 insertions(+), 2 deletions(-)
>
>
> Regards
> Adrian