perf annotate: Introduce strerror for handling symbol__disassemble() errors
We were just using pr_error() which makes it difficult for non stdio UIs
to provide errors using its widgets, as they need to somehow catch what
was passed to pr_error().
Fix it by introducing a __strerror() interface like the ones used
elsewhere, for instance target__strerror().
This is just the initial step, more work will be done, but first some
error handling bugs noticed while working on this need to be dealt with.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-dgd22zl2xg7x4vcnoa83jxfb@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/ui/gtk/annotate.c b/tools/perf/ui/gtk/annotate.c
index 35e4b9e..42d3199 100644
--- a/tools/perf/ui/gtk/annotate.c
+++ b/tools/perf/ui/gtk/annotate.c
@@ -162,12 +162,16 @@
GtkWidget *notebook;
GtkWidget *scrolled_window;
GtkWidget *tab_label;
+ int err;
if (map->dso->annotate_warned)
return -1;
- if (symbol__disassemble(sym, map, 0) < 0) {
- ui__error("%s", ui_helpline__current);
+ err = symbol__disassemble(sym, map, 0);
+ if (err) {
+ char msg[BUFSIZ];
+ symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg));
+ ui__error("Couldn't annotate %s: %s\n", sym->name, msg);
return -1;
}