perf annotate-data: Handle call instructions
authorNamhyung Kim <namhyung@kernel.org>
Tue, 19 Mar 2024 05:51:05 +0000 (22:51 -0700)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Thu, 21 Mar 2024 13:41:29 +0000 (10:41 -0300)
commitcffb7910afbdf73ca5b2fdf8a617584a7dcecf14
treee54693e5220a8d3de1872aa3c538e4ba3d8b8d3e
parent0a41e5d6849b4f705c377d34799485b546764970
perf annotate-data: Handle call instructions

When updating instruction states, the call instruction should play a
role since it changes the register states.  For simplicity, mark some
registers as caller-saved registers (should be arch-dependent), and
invalidate them all after a function call.

If the function returns something, the designated register (ret_reg)
will have the type info.

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/20240319055115.4063940-14-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/annotate-data.c