perf auxtrace: Alter addr_filter__entire_dso() to work if there are no symbols

addr_filter__entire_dso() uses the first and last symbols from a dso,
and so does not work when there are no symbols. Alter it to filter the
whole file instead.

Signed-off-by: Adrian Hunter <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Masami Hiramatsu <[e-mail]>
Cc: Mathieu Poirier <[e-mail]>
Fixes: 1b36c03e3569 ("perf record: Add support for using symbols in address filters")
Link: http://lkml.kernel.org/r/[e-mail]
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/util/auxtrace.c

···
 
 static int addr_filter__entire_dso(struct addr_filter *filt, struct dso *dso)
 {
-	struct symbol *first_sym = dso__first_symbol(dso);
-	struct symbol *last_sym = dso__last_symbol(dso);
-
-	if (!first_sym || !last_sym) {
-		pr_err("Failed to determine filter for %s\nNo symbols found.\n",
+	if (dso__data_file_size(dso, NULL)) {
+		pr_err("Failed to determine filter for %s\nCannot determine file size.\n",
 		       filt->filename);
 		return -EINVAL;
 	}
 
-	filt->addr = first_sym->start;
-	filt->size = last_sym->end - first_sym->start;
+	filt->addr = 0;
+	filt->size = dso->data.file_size;
 
 	return 0;
 }