From 7b59a82493b49b715224bfe3b35fae52e48e5fa1 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 19 Nov 2019 16:30:56 -0300 Subject: perf map: Move comparision of map's dso_id to a separate function We'll use it when doing DSO lookups using dso_ids. Cc: Adrian Hunter Cc: Andi Kleen Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-u2nr1oq03o0i29w2ay9jx03s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/dsos.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'tools/perf/util/dsos.c') diff --git a/tools/perf/util/dsos.c b/tools/perf/util/dsos.c index 3ea80d203587..ecf8d7346685 100644 --- a/tools/perf/util/dsos.c +++ b/tools/perf/util/dsos.c @@ -2,6 +2,7 @@ #include "debug.h" #include "dsos.h" #include "dso.h" +#include "map.h" #include "vdso.h" #include "namespaces.h" #include @@ -9,6 +10,30 @@ #include #include // filename__read_build_id +int dso_id__cmp(struct dso_id *a, struct dso_id *b) +{ + /* + * The second is always dso->id, so zeroes if not set, assume passing + * NULL for a means a zeroed id + */ + if (a == NULL) + return 0; + + if (a->maj > b->maj) return -1; + if (a->maj < b->maj) return 1; + + if (a->min > b->min) return -1; + if (a->min < b->min) return 1; + + if (a->ino > b->ino) return -1; + if (a->ino < b->ino) return 1; + + if (a->ino_generation > b->ino_generation) return -1; + if (a->ino_generation < b->ino_generation) return 1; + + return 0; +} + bool __dsos__read_build_ids(struct list_head *head, bool with_hits) { bool have_build_id = false; -- cgit v1.2.3