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Commit eb9a42ca authored by Tom Zanussi's avatar Tom Zanussi Committed by Ingo Molnar
Browse files

perf trace: Add flag/symbolic format_flags 



It's useful to know whether a field is a flag or symbolic field
for e.g. when generating scripts - it allows us to translate
those fields specially rather than literally as plain numeric
values.

Signed-off-by: default avatarTom Zanussi <tzanussi@gmail.com>
Cc: fweisbec@gmail.com
Cc: rostedt@goodmis.org
Cc: anton@samba.org
Cc: hch@infradead.org
LKML-Reference: <1259133352-23685-3-git-send-email-tzanussi@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 956ffd02

tools/perf/util/trace-event-parse.c

+17 −0
Original line number Diff line number Diff line
@@ -48,6 +48,11 @@ static unsigned long long input_buf_siz; 


static int cpus;

static int long_size;

static int is_flag_field;

static int is_symbolic_field;



static struct format_field *

find_any_field(struct event *event, const char *name);



static void init_input_buf(char *buf, unsigned long long size)

{
@@ -1301,6 +1306,16 @@ process_entry(struct event *event __unused, struct print_arg *arg, 
	arg->type = PRINT_FIELD;

	arg->field.name = field;



	if (is_flag_field) {

		arg->field.field = find_any_field(event, arg->field.name);

		arg->field.field->flags |= FIELD_IS_FLAG;

		is_flag_field = 0;

	} else if (is_symbolic_field) {

		arg->field.field = find_any_field(event, arg->field.name);

		arg->field.field->flags |= FIELD_IS_SYMBOLIC;

		is_symbolic_field = 0;

	}



	type = read_token(&token);

	*tok = token;
@@ -1668,9 +1683,11 @@ process_arg_token(struct event *event, struct print_arg *arg, 
			type = process_entry(event, arg, &token);

		} else if (strcmp(token, "__print_flags") == 0) {

			free_token(token);

			is_flag_field = 1;

			type = process_flags(event, arg, &token);

		} else if (strcmp(token, "__print_symbolic") == 0) {

			free_token(token);

			is_symbolic_field = 1;

			type = process_symbols(event, arg, &token);

		} else if (strcmp(token, "__get_str") == 0) {

			free_token(token);

tools/perf/util/trace-event.h

+2 −0
Original line number Diff line number Diff line
@@ -29,6 +29,8 @@ enum format_flags { 
	FIELD_IS_SIGNED		= 4,

	FIELD_IS_STRING		= 8,

	FIELD_IS_DYNAMIC	= 16,

	FIELD_IS_FLAG		= 32,

	FIELD_IS_SYMBOLIC	= 64,

};



struct format_field {