diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2024-03-18 22:51:02 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2024-03-21 10:41:28 -0300 |
| commit | 4f903455befa257c50422a4570c4dca0020a1fc8 (patch) | |
| tree | 3f18fd28eb88028e918440d4b98f6a2ea2e1e353 /tools/perf/util/annotate.c | |
| parent | 06b2ce75386df04b7aea53818ed3c42ee50ec426 (diff) | |
perf annotate-data: Add update_insn_state()
The update_insn_state() function is to update the type state table after
processing each instruction. For now, it handles MOV (on x86) insn
to transfer type info from the source location to the target.
The location can be a register or a stack slot. Check carefully when
memory reference happens and fetch the type correctly. It basically
ignores write to a memory since it doesn't change the type info. One
exception is writes to (new) stack slots for register spilling.
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/20240319055115.4063940-11-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/annotate.c')
| -rw-r--r-- | tools/perf/util/annotate.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index aa005c13ff67..9777df5dc2e3 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -3872,6 +3872,7 @@ retry: for_each_insn_op_loc(&loc, i, op_loc) { struct data_loc_info dloc = { + .arch = arch, .ms = ms, /* Recalculate IP for LOCK prefix or insn fusion */ .ip = ms->sym->start + dl->al.offset, |