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perf metric: Change expr__get_id to return struct expr_id_data

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Changing expr__get_id to use and return struct expr_id_data
pointer as value for the ID. This way we can access data other
than value for given ID in following changes.

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/20200719181320.785305-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2020-07-19 20:13:04 +02:00 committed by Arnaldo Carvalho de Melo
parent 332603c2aa
commit 5c5f5e835f
3 changed files with 14 additions and 13 deletions
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10
tools/perf/util/expr.c
View File

@ -73,14 +73,10 @@ int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val)
return ret;
}
int expr__get_id(struct expr_parse_ctx *ctx, const char *id, double *val_ptr)
int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
struct expr_id_data **data)
{
struct expr_id_data *data;
if (!hashmap__find(&ctx->ids, id, (void **)&data))
return -1;
*val_ptr = (data == NULL) ? 0.0 : data->val;
return 0;
return hashmap__find(&ctx->ids, id, (void **)data) ? 0 : -1;
}
void expr__ctx_init(struct expr_parse_ctx *ctx)

3
tools/perf/util/expr.h
View File

@ -28,7 +28,8 @@ void expr__ctx_init(struct expr_parse_ctx *ctx);
void expr__ctx_clear(struct expr_parse_ctx *ctx);
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__get_id(struct expr_parse_ctx *ctx, const char *id, double *val_ptr);
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,
const char *expr, int runtime);
int expr__find_other(const char *expr, const char *one,

14
tools/perf/util/expr.y
View File

@ -85,12 +85,16 @@ if_expr:
;
expr: NUMBER
| ID { if (expr__get_id(ctx, $1, &$$)) {
pr_debug("%s not found\n", $1);
| ID {
struct expr_id_data *data;
if (expr__get_id(ctx, $1, &data) || !data) {
pr_debug("%s not found\n", $1);
free($1);
YYABORT;
}
$$ = data->val;
free($1);
YYABORT;
}
free($1);
}
| expr '|' expr { $$ = (long)$1 | (long)$3; }
| expr '&' expr { $$ = (long)$1 & (long)$3; }