perf annotate-data: Maintain variable type info
authorNamhyung Kim <namhyung@kernel.org>
Tue, 19 Mar 2024 05:51:01 +0000 (22:51 -0700)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Thu, 21 Mar 2024 13:41:28 +0000 (10:41 -0300)
commit06b2ce75386df04b7aea53818ed3c42ee50ec426
tree48bbaf194881c00f588c4178844ecc016fff3c38
parent90429524f3e7342e98fd3a14deaa46f1dd3f6ffe
perf annotate-data: Maintain variable type info

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>
tools/perf/util/annotate-data.c
tools/perf/util/dwarf-aux.c