perf metric: Add referenced metrics to hash data

Adding referenced metrics to the parsing context so they can be resolved
during the metric processing.

Adding expr__add_ref function to store referenced metrics into parse
context.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200719181320.785305-11-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2020-07-19 20:13:11 +02:00
committed by Arnaldo Carvalho de Melo
parent 4ea2896715
commit fc393839c1
3 changed files with 80 additions and 7 deletions

View File

@@ -11,12 +11,22 @@
#include "util/hashmap.h"
//#endif
struct metric_ref;
struct expr_parse_ctx {
struct hashmap ids;
};
struct expr_id_data {
double val;
union {
double val;
struct {
const char *metric_name;
const char *metric_expr;
} ref;
};
bool is_ref;
};
struct expr_scanner_ctx {
@@ -29,6 +39,7 @@ void expr__ctx_clear(struct expr_parse_ctx *ctx);
void expr__del_id(struct expr_parse_ctx *ctx, const char *id);
int expr__add_id(struct expr_parse_ctx *ctx, const char *id);
int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val);
int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref);
int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
struct expr_id_data **data);
int expr__parse(double *final_val, struct expr_parse_ctx *ctx,