perf script: Explicitly handle known default print arg type

Handle the print argument types brought by the new libparsevent in perl
scripting engine.

PRINT_BSTRING and PRINT_DYNAMIC_ARRAY are treated just like strings
and thus don't require specific processing.

But PRINT_FUNC need specific plugins which are not yet handled, lets
warn if we meet this case.

This fixes:

     util/scripting-engines/trace-event-perl.c: In function define_event_symbol:
     util/scripting-engines/trace-event-perl.c:188: error: enumeration value PRINT_BSTRING not handled in switch
     util/scripting-engines/trace-event-perl.c:188: error: enumeration value PRINT_DYNAMIC_ARRAY not handled in switch
     util/scripting-engines/trace-event-perl.c:188: error: enumeration value PRINT_FUNC not handled in switch

Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@redhat.com>
Cc: Frederic Weisbecker <fweisbec@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
Link: http://lkml.kernel.org/r/1337697049-30251-1-git-send-email-fweisbec@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index e30749e38a9b..d50658b7d9e0 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -209,6 +209,8 @@ static void define_event_symbols(struct event *event,
                 define_symbolic_values(args->symbol.symbols, ev_name,
                                        cur_field_name);
                 break;
+        case PRINT_BSTRING:
+        case PRINT_DYNAMIC_ARRAY:
         case PRINT_STRING:
                 break;
         case PRINT_TYPE:
@@ -220,7 +222,9 @@ static void define_event_symbols(struct event *event,
                 define_event_symbols(event, ev_name, args->op.left);
                 define_event_symbols(event, ev_name, args->op.right);
                 break;
+        case PRINT_FUNC:
         default:
+                pr_err("Unsupported print arg type\n");
                 /* we should warn... */
                 return;
         }