#include <errno.h>
#include <stdlib.h>
#include <string.h>
+#include "metricgroup.h"
+#include "debug.h"
#include "expr.h"
#include "expr-bison.h"
#include "expr-flex.h"
#include <linux/kernel.h>
+#include <linux/zalloc.h>
+#include <ctype.h>
#ifdef PARSER_DEBUG
extern int expr_debug;
if (!data_ptr)
return -ENOMEM;
data_ptr->val = val;
+ data_ptr->is_ref = false;
ret = hashmap__set(&ctx->ids, id, data_ptr,
(const void **)&old_key, (void **)&old_data);
return ret;
}
+int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref)
+{
+ struct expr_id_data *data_ptr = NULL, *old_data = NULL;
+ char *old_key = NULL;
+ char *name, *p;
+ int ret;
+
+ data_ptr = zalloc(sizeof(*data_ptr));
+ if (!data_ptr)
+ return -ENOMEM;
+
+ name = strdup(ref->metric_name);
+ if (!name) {
+ free(data_ptr);
+ return -ENOMEM;
+ }
+
+ /*
+ * The jevents tool converts all metric expressions
+ * to lowercase, including metric references, hence
+ * we need to add lowercase name for metric, so it's
+ * properly found.
+ */
+ for (p = name; *p; p++)
+ *p = tolower(*p);
+
+ /*
+ * Intentionally passing just const char pointers,
+ * originally from 'struct pmu_event' object.
+ * We don't need to change them, so there's no
+ * need to create our own copy.
+ */
+ data_ptr->ref.metric_name = ref->metric_name;
+ data_ptr->ref.metric_expr = ref->metric_expr;
+ data_ptr->is_ref = true;
+
+ ret = hashmap__set(&ctx->ids, name, data_ptr,
+ (const void **)&old_key, (void **)&old_data);
+ if (ret)
+ free(data_ptr);
+
+ pr_debug2("adding ref metric %s: %s\n",
+ ref->metric_name, ref->metric_expr);
+
+ free(old_key);
+ free(old_data);
+ return ret;
+}
+
int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
struct expr_id_data **data)
{
#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 {
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,
}
static int prepare_metric(struct evsel **metric_events,
+ struct metric_ref *metric_refs,
struct expr_parse_ctx *pctx,
int cpu,
struct runtime_stat *st)
{
double scale;
char *n, *pn;
- int i;
+ int i, j, ret;
expr__ctx_init(pctx);
for (i = 0; metric_events[i]; i++) {
expr__add_id_val(pctx, n, avg_stats(stats)*scale);
}
+ for (j = 0; metric_refs && metric_refs[j].metric_name; j++) {
+ ret = expr__add_ref(pctx, &metric_refs[j]);
+ if (ret)
+ return ret;
+ }
+
return i;
}
static void generic_metric(struct perf_stat_config *config,
const char *metric_expr,
struct evsel **metric_events,
+ struct metric_ref *metric_refs,
char *name,
const char *metric_name,
const char *metric_unit,
int i;
void *ctxp = out->ctx;
- i = prepare_metric(metric_events, &pctx, cpu, st);
+ i = prepare_metric(metric_events, metric_refs, &pctx, cpu, st);
if (i < 0)
return;
struct expr_parse_ctx pctx;
double ratio;
- if (prepare_metric(mexp->metric_events, &pctx, cpu, st) < 0)
+ if (prepare_metric(mexp->metric_events, mexp->metric_refs, &pctx, cpu, st) < 0)
return 0.;
if (expr__parse(&ratio, &pctx, mexp->metric_expr, 1))
else
print_metric(config, ctxp, NULL, NULL, name, 0);
} else if (evsel->metric_expr) {
- generic_metric(config, evsel->metric_expr, evsel->metric_events, evsel->name,
- evsel->metric_name, NULL, 1, cpu, out, st);
+ generic_metric(config, evsel->metric_expr, evsel->metric_events, NULL,
+ evsel->name, evsel->metric_name, NULL, 1, cpu, out, st);
} else if (runtime_stat_n(st, STAT_NSECS, 0, cpu) != 0) {
char unit = 'M';
char unit_buf[10];
if (num++ > 0)
out->new_line(config, ctxp);
generic_metric(config, mexp->metric_expr, mexp->metric_events,
- evsel->name, mexp->metric_name,
+ mexp->metric_refs, evsel->name, mexp->metric_name,
mexp->metric_unit, mexp->runtime, cpu, out, st);
}
}