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perf trace: Add flag/symbolic format_flags

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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@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: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Tom Zanussi 2009-11-25 01:15:47 -06:00 committed by Ingo Molnar
parent 956ffd027b
commit eb9a42caa7
2 changed files with 19 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

17
tools/perf/util/trace-event-parse.c
View file

@ -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);

2
tools/perf/util/trace-event.h
View file

@ -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 {