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perf annotate: Introduce annotated_source__get_line()

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It's a helper function to get annotation_line at the given offset
without using the offsets array.  The goal is to get rid of the
offsets array altogether.  It just does the linear search but I
think it's better to save memory as it won't be called in a hot
path.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240404175716.1225482-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim
2024-04-04 10:57:10 -07:00
committed by Arnaldo Carvalho de Melo
parent bfd98ceb62
commit 6f157d9af1
3 changed files with 25 additions and 6 deletions
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2
tools/perf/ui/browsers/annotate.c
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@@ -186,7 +186,7 @@ static void annotate_browser__draw_current_jump(struct ui_browser *browser)
* name right after the '<' token and probably treating this like a
* 'call' instruction.
*/
target = notes->src->offsets[cursor->ops.target.offset];
target = annotated_source__get_line(notes->src, cursor->ops.target.offset);
if (target == NULL) {
ui_helpline__printf("WARN: jump target inconsistency, press 'o', notes->offsets[%#x] = NULL\n",
cursor->ops.target.offset);