From: Andi Kleen <a...@linux.intel.com> The message about missing /tmp/perf-* for JITed code is quite confusing to users. Add a better error message, but only print it once.
Signed-off-by: Andi Kleen <a...@linux.intel.com> --- tools/perf/util/map.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index fbeb0c6efaa6..d476b76abc6a 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -316,6 +316,15 @@ int map__load(struct map *map) nr = dso__load(map->dso, map); if (nr < 0) { + if (!strncmp(map->dso->name, "/tmp/perf-", 10)) { + static bool warned; + if (!warned) { + pr_err("Cannot find executable, JITed code present? May need agent.\n"); + warned = true; + } + return -1; + } + if (map->dso->has_build_id) { char sbuild_id[SBUILD_ID_SIZE]; -- 2.20.1