From: Jiri Olsa <[email protected]> Introduce an 'alias' field to 'struct format_field' to be able to use alternative name for the field.
It is initialized with same string pointer as 'name' field. The free logic checks the 'alias' pointer being reset by user and frees it. This will be handy when converting data into CTF, where each field within event needs to have a unique name (while this is not required for tracepoint). Converter can easily assign unique name into the format_field struct. Suggested-by: Steven Rostedt <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Acked-by: Steven Rostedt <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: He Kuang <[email protected]> Cc: Jeremie Galarneau <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Sebastian Andrzej Siewior <[email protected]> Cc: Tom Zanussi <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/lib/traceevent/event-parse.c | 6 ++++-- tools/lib/traceevent/event-parse.h | 1 + 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 12a7e2a40c89..1ec56b459bc0 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -1387,7 +1387,7 @@ static int event_read_fields(struct event_format *event, struct format_field **f do_warning_event(event, "%s: no type found", __func__); goto fail; } - field->name = last_token; + field->name = field->alias = last_token; if (test_type(type, EVENT_OP)) goto fail; @@ -1469,7 +1469,7 @@ static int event_read_fields(struct event_format *event, struct format_field **f size_dynamic = type_size(field->name); free_token(field->name); strcat(field->type, brackets); - field->name = token; + field->name = field->alias = token; type = read_token(&token); } else { char *new_type; @@ -6444,6 +6444,8 @@ void pevent_ref(struct pevent *pevent) void pevent_free_format_field(struct format_field *field) { free(field->type); + if (field->alias != field->name) + free(field->alias); free(field->name); free(field); } diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h index 86a5839fb048..063b1971eb35 100644 --- a/tools/lib/traceevent/event-parse.h +++ b/tools/lib/traceevent/event-parse.h @@ -191,6 +191,7 @@ struct format_field { struct event_format *event; char *type; char *name; + char *alias; int offset; int size; unsigned int arraylen; -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
