Commit-ID: 170ae6bc24e1d7f9bd921a484ec9ea2825497970
Gitweb: http://git.kernel.org/tip/170ae6bc24e1d7f9bd921a484ec9ea2825497970
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Wed, 23 Feb 2011 11:08:59 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 23 Feb 2011 12:13:39 -0300
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 <mingo@xxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: Tom Zanussi <tzanussi@xxxxxxxxx>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
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 70ec422..0d0830c 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 294b495..497b3c4 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;
--
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