On Tue, Nov 17, 2020 at 09:50:40AM -0300, Arnaldo Carvalho de Melo wrote: > Em Tue, Nov 17, 2020 at 12:00:52PM +0100, Jiri Olsa escreveu: > > Add buildid-list support for mmap2's build id data, so we can > > display build ids for dso objects for data without the build > > id cache update. > > > $ perf buildid-list > > 1805c738c8f3ec0f47b7ea09080c28f34d18a82b /usr/lib64/ld-2.31.so > > d278249792061c6b74d1693ca59513be1def13f2 /usr/lib64/libc-2.31.so > > > > By default only dso objects with hits are shown. > > Would be interesting to be able to show all the build ids that are > there. a 'perf buildid-list --all' or make this under --force?
ok, will check.. one other tool I think would be handy is to show which debuginfo is not available, because it can change the report a lot - missing symbols are not getting accounted, and their hits are accounted only as separated addresses jirka > > - Arnaldo > > > Signed-off-by: Jiri Olsa <[email protected]> > > --- > > tools/perf/builtin-buildid-list.c | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/tools/perf/builtin-buildid-list.c > > b/tools/perf/builtin-buildid-list.c > > index e3ef75583514..87f5b1a4a7fa 100644 > > --- a/tools/perf/builtin-buildid-list.c > > +++ b/tools/perf/builtin-buildid-list.c > > @@ -77,6 +77,9 @@ static int perf_session__list_build_ids(bool force, bool > > with_hits) > > perf_header__has_feat(&session->header, HEADER_AUXTRACE)) > > with_hits = false; > > > > + if (!perf_header__has_feat(&session->header, HEADER_BUILD_ID)) > > + with_hits = true; > > + > > /* > > * in pipe-mode, the only way to get the buildids is to parse > > * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID > > -- > > 2.26.2 > > > > -- > > - Arnaldo >
