perf tools: Consolidate output field handling to hpp format routines

Until now the hpp and sort functions do similar jobs different ways.
Since the sort functions converted/wrapped to hpp formats it can do
the job in a uniform way.

The perf_hpp__sort_list has a list of hpp formats to sort entries and
the perf_hpp__list has a list of hpp formats to print output result.

To have a backward compatibility, it automatically adds 'overhead'
field in front of sort list.  And then all of fields in sort list
added to the output list (if it's not already there).

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/n/tip-7g3h86woz2sckg3h1lj42ygj@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>

1 files changed, 17 insertions, 38 deletions

diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 9eccf7f..49e2e4a 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -306,8 +306,7 @@ static size_t hist_entry__callchain_fprintf(struct hist_entry *he,
 	return hist_entry_callchain__fprintf(he, total_period, left_margin, fp);
 }
 
-static int hist_entry__period_snprintf(struct perf_hpp *hpp,
-				       struct hist_entry *he)
+static int hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp)
 {
 	const char *sep = symbol_conf.field_sep;
 	struct perf_hpp_fmt *fmt;
@@ -353,8 +352,7 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size,
 	if (size == 0 || size > bfsz)
 		size = hpp.size = bfsz;
 
-	ret = hist_entry__period_snprintf(&hpp, he);
-	hist_entry__sort_snprintf(he, bf + ret, size - ret, hists);
+	hist_entry__snprintf(he, &hpp);
 
 	ret = fprintf(fp, "%s\n", bf);
 
@@ -386,28 +384,9 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
 
 	init_rem_hits();
 
-	if (!show_header)
-		goto print_entries;
-
-	fprintf(fp, "# ");
-
-	perf_hpp__for_each_format(fmt) {
-		if (!first)
-			fprintf(fp, "%s", sep ?: "  ");
-		else
-			first = false;
-
-		fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists));
-		fprintf(fp, "%s", bf);
-	}
-
 	list_for_each_entry(se, &hist_entry__sort_list, list) {
 		if (se->elide)
 			continue;
-		if (sep) {
-			fprintf(fp, "%c%s", *sep, se->se_header);
-			continue;
-		}
 		width = strlen(se->se_header);
 		if (symbol_conf.col_width_list_str) {
 			if (col_width) {
@@ -420,7 +399,21 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
 		}
 		if (!hists__new_col_len(hists, se->se_width_idx, width))
 			width = hists__col_len(hists, se->se_width_idx);
-		fprintf(fp, "  %*s", width, se->se_header);
+	}
+
+	if (!show_header)
+		goto print_entries;
+
+	fprintf(fp, "# ");
+
+	perf_hpp__for_each_format(fmt) {
+		if (!first)
+			fprintf(fp, "%s", sep ?: "  ");
+		else
+			first = false;
+
+		fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists));
+		fprintf(fp, "%s", bf);
 	}
 
 	fprintf(fp, "\n");
@@ -447,20 +440,6 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
 			fprintf(fp, ".");
 	}
 
-	list_for_each_entry(se, &hist_entry__sort_list, list) {
-		unsigned int i;
-
-		if (se->elide)
-			continue;
-
-		fprintf(fp, "  ");
-		width = hists__col_len(hists, se->se_width_idx);
-		if (width == 0)
-			width = strlen(se->se_header);
-		for (i = 0; i < width; i++)
-			fprintf(fp, ".");
-	}
-
 	fprintf(fp, "\n");
 	if (max_rows && ++nr_rows >= max_rows)
 		goto out;