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Message-Id: <1259133352-23685-3-git-send-email-tzanussi@gmail.com>
Date: Wed, 25 Nov 2009 01:15:47 -0600
From: Tom Zanussi <tzanussi@...il.com>
To: linux-kernel@...r.kernel.org
Cc: mingo@...e.hu, fweisbec@...il.com, rostedt@...dmis.org,
anton@...ba.org, hch@...radead.org
Subject: [RFC][PATCH 2/7] 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: Tom Zanussi <tzanussi@...il.com>
---
tools/perf/util/trace-event-parse.c | 17 +++++++++++++++++
tools/perf/util/trace-event.h | 2 ++
2 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index eae5605..b2aa520 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -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)
{
@@ -1300,6 +1305,16 @@ 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;
@@ -1667,9 +1682,11 @@ 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);
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index e7aaf00..aeb9157 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -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 {
--
1.6.4.GIT
--
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