perf annotate-data: Maintain variable type info

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As it collected basic block and variable information in each scope, it
now can build a state table to find matching variable at the location.

The struct type_state is to keep the type info saved in each register
and stack slot.  The update_var_state() updates the table when it finds
variables in the current address.  It expects die_collect_vars() filled
a list of variables with type info and starting address.

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: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20240319055115.4063940-10-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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Namhyung Kim 2024-03-18 22:51:01 -07:00 • committed by Arnaldo Carvalho de Melo

parent 90429524f3

commit 06b2ce7538

2 changed files with 177 additions and 0 deletions

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173

tools/perf/util/annotate-data.c

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4

tools/perf/util/dwarf-aux.c

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