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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2009-10-30 18:28:25 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-02 15:52:12 (GMT) |
| commit | d70a5402f9c2e2671b809363616b3508b4c5a565 (patch) | |
| tree | 1dd27fc44cc1e395542fcd6381f4b9b46be72264 /tools/perf/util/map.c | |
| parent | 00a192b395b0606ad0265243844b3cd68e73420a (diff) | |
| download | linux-fsl-qoriq-d70a5402f9c2e2671b809363616b3508b4c5a565.tar.xz | |
perf tools: Improve message about missing symtabs for deleted DSOs
Instead of:
no symbols found in /usr/lib/gstreamer-0.10/libgsttypefindfunctions.so (deleted), maybe install a debug package?
no symbols found in /usr/lib/gstreamer-0.10/libgstaudioconvert.so (deleted), maybe install a debug package?
We now emit:
/usr/lib/gstreamer-0.10/libgsttypefindfunctions.so was updated, restart the long running apps that use it!
/usr/lib/gstreamer-0.10/libgstaudioconvert.so was updated, restart the long running apps that use it!
Which is far less misleading about what the cause of the
symbol mismatch is.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1256927305-4628-3-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/map.c')
| -rw-r--r-- | tools/perf/util/map.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 679011c..f1e2169 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -75,6 +75,8 @@ out_delete: return NULL; } +#define DSO__DELETED "(deleted)" + struct symbol * map__find_symbol(struct map *self, u64 ip, symbol_filter_t filter) { @@ -86,8 +88,18 @@ map__find_symbol(struct map *self, u64 ip, symbol_filter_t filter) self->dso->long_name); return NULL; } else if (nr == 0) { - pr_warning("No symbols found in %s, maybe install a debug package?\n", - self->dso->long_name); + const char *name = self->dso->long_name; + const size_t len = strlen(name); + const size_t real_len = len - sizeof(DSO__DELETED); + + if (len > sizeof(DSO__DELETED) && + strcmp(name + real_len + 1, DSO__DELETED) == 0) + pr_warning("%.*s was updated, restart the " + "long running apps that use it!\n", + real_len, name); + else + pr_warning("no symbols found in %s, maybe " + "install a debug package?\n", name); return NULL; } } |