Re: [PATCH v5 0/3] perf report: Support annotation of code without symbols

From: Jiri Olsa
Date: Mon Mar 02 2020 - 07:51:38 EST


On Thu, Feb 27, 2020 at 12:39:36PM +0800, Jin Yao wrote:
> For perf report on stripped binaries it is currently impossible to do
> annotation. The annotation state is all tied to symbols, but there are
> either no symbols, or symbols are not covering all the code.
>
> We should support the annotation functionality even without symbols.
>
> The first patch uses al_addr to print because it's easy to dump
> the instructions from this address in binary for branch mode.
>
> The second patch supports the annotation on stripped binary.
>
> The third patch supports the hotkey 'a' on address for annotation.
>
> v5:
> ---
> Separate the hotkey 'a' implementation to a new patch
> "perf report: Support hotkey 'a' on address for annotation"

Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>

thanks,
jirka

>
> v4:
> ---
> 1. Support the hotkey 'a'. When we press 'a' on address,
> now it supports the annotation.
>
> 2. Change the patch title from
> "Support interactive annotation of code without symbols" to
> "perf report: Support interactive annotation of code without symbols"
>
> v3:
> ---
> Keep just the ANNOTATION_DUMMY_LEN, and remove the
> opts->annotate_dummy_len since it's the "maybe in future
> we will provide" feature.
>
> v2:
> ---
> Fix a crash issue when annotating an address in "unknown" object.
>
> Jin Yao (3):
> perf util: Print al_addr when symbol is not found
> perf report: Support interactive annotation of code without symbols
> perf report: Support hotkey 'a' on address for annotation
>
> tools/perf/ui/browsers/hists.c | 90 +++++++++++++++++++++++++++-------
> tools/perf/util/annotate.h | 1 +
> tools/perf/util/sort.c | 6 ++-
> 3 files changed, 78 insertions(+), 19 deletions(-)
>
> --
> 2.17.1
>