From 170ae6bc24e1d7f9bd921a484ec9ea2825497970 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 23 Feb 2011 11:08:59 -0300 Subject: [PATCH] perf annotate: Show better message when no vmlinux is found In both --tui and --stdio, in 'annotate', 'top', 'report' when trying to annotate a kernel symbol having just access to a kallsyms file, that doesn't have the DWARF info needed for annotation. Suggested-by: Ingo Molnar Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/annotate.c | 15 +++++++++++++-- tools/perf/util/ui/browsers/hists.c | 8 -------- 2 files changed, 13 insertions(+), 10 deletions(-) diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 70ec422ddb64..0d0830c98cd7 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -295,12 +295,23 @@ fallback: } if (dso->origin == DSO__ORIG_KERNEL) { + char bf[BUILD_ID_SIZE * 2 + 16] = " with build id "; + char *build_id_msg = NULL; + if (dso->annotate_warned) goto out_free_filename; + + if (dso->has_build_id) { + build_id__sprintf(dso->build_id, + sizeof(dso->build_id), bf + 15); + build_id_msg = bf; + } err = -ENOENT; dso->annotate_warned = 1; - pr_err("Can't annotate %s: No vmlinux file was found in the " - "path\n", sym->name); + pr_err("Can't annotate %s: No vmlinux file%s was found in the " + "path.\nPlease use 'perf buildid-cache -av vmlinux' or " + "--vmlinux vmlinux.\n", + sym->name, build_id_msg ?: ""); goto out_free_filename; } diff --git a/tools/perf/util/ui/browsers/hists.c b/tools/perf/util/ui/browsers/hists.c index 294b49538522..497b3c4076a3 100644 --- a/tools/perf/util/ui/browsers/hists.c +++ b/tools/perf/util/ui/browsers/hists.c @@ -924,14 +924,6 @@ int hists__browse(struct hists *self, const char *helpline, if (choice == annotate) { struct hist_entry *he; do_annotate: - if (browser->selection->map->dso->origin == DSO__ORIG_KERNEL) { - browser->selection->map->dso->annotate_warned = 1; - ui_helpline__puts("No vmlinux file found, can't " - "annotate with just a " - "kallsyms file"); - continue; - } - he = hist_browser__selected_entry(browser); if (he == NULL) continue; -- 2.30.2