Merge pull request #163 from danobi/wildcard_invalid_file

Supress invalid file warning for wildcarded tracepoints

src/tracepoint_format_parser.cpp

@@ -30,7 +30,9 @@ void TracepointFormatParser::parse(ast::Program *program)
         std::string &event_name = ap->func;
         std::string format_file_path = "/sys/kernel/debug/tracing/events/" + category + "/" + event_name + "/format";
         std::ifstream format_file(format_file_path.c_str());
-        if (format_file.fail())
+
+        // Only bail on error if the attachpoint isn't wildcarded
+        if (format_file.fail() && format_file_path.find('*') == std::string::npos)
         {
           std::cerr << strerror(errno) << ": " << format_file_path << std::endl;
           return;