[PATCH 1/9] perf stat: Move perf_counts struct and functions into separate object

[Arnaldo Carvalho de Melo <acme@kernel.org>]

From: Jiri Olsa <jolsa@redhat.com>

Moving 'struct perf_counts' and associated functions into separate
object, so we could remove stat.c object dependency from python build.

It makes the python code to build properly, because it fails to load due
to missing stat-shadow.c object dependency if some patches from Kan
Liang are applied.

So apply this one, then Kan's.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20150807105103.GB8624@krava.brq.redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-stat.c          |  1 +
 tools/perf/util/Build              |  1 +
 tools/perf/util/counts.c           | 52 ++++++++++++++++++++++++++++++++++++++
 tools/perf/util/counts.h           | 37 +++++++++++++++++++++++++++
 tools/perf/util/evsel.h            |  2 +-
 tools/perf/util/python-ext-sources |  2 +-
 tools/perf/util/stat.c             | 49 -----------------------------------
 tools/perf/util/stat.h             | 30 ----------------------
 8 files changed, 93 insertions(+), 81 deletions(-)
 create mode 100644 tools/perf/util/counts.c
 create mode 100644 tools/perf/util/counts.h

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index a054ddc0b2a0..7aa039bd379a 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -58,6 +58,7 @@
 #include "util/cpumap.h"
 #include "util/thread.h"
 #include "util/thread_map.h"
+#include "util/counts.h"
 
 #include <stdlib.h>
 #include <sys/prctl.h>
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 2ee81d74cf45..1ce0adc8b3cb 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -68,6 +68,7 @@ libperf-y += target.o
 libperf-y += rblist.o
 libperf-y += intlist.o
 libperf-y += vdso.o
+libperf-y += counts.o
 libperf-y += stat.o
 libperf-y += stat-shadow.o
 libperf-y += record.o
diff --git a/tools/perf/util/counts.c b/tools/perf/util/counts.c
new file mode 100644
index 000000000000..e3fde313deb2
--- /dev/null
+++ b/tools/perf/util/counts.c
@@ -0,0 +1,52 @@
+#include <stdlib.h>
+#include "evsel.h"
+#include "counts.h"
+
+struct perf_counts *perf_counts__new(int ncpus, int nthreads)
+{
+	struct perf_counts *counts = zalloc(sizeof(*counts));
+
+	if (counts) {
+		struct xyarray *values;
+
+		values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
+		if (!values) {
+			free(counts);
+			return NULL;
+		}
+
+		counts->values = values;
+	}
+
+	return counts;
+}
+
+void perf_counts__delete(struct perf_counts *counts)
+{
+	if (counts) {
+		xyarray__delete(counts->values);
+		free(counts);
+	}
+}
+
+static void perf_counts__reset(struct perf_counts *counts)
+{
+	xyarray__reset(counts->values);
+}
+
+void perf_evsel__reset_counts(struct perf_evsel *evsel)
+{
+	perf_counts__reset(evsel->counts);
+}
+
+int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads)
+{
+	evsel->counts = perf_counts__new(ncpus, nthreads);
+	return evsel->counts != NULL ? 0 : -ENOMEM;
+}
+
+void perf_evsel__free_counts(struct perf_evsel *evsel)
+{
+	perf_counts__delete(evsel->counts);
+	evsel->counts = NULL;
+}
diff --git a/tools/perf/util/counts.h b/tools/perf/util/counts.h
new file mode 100644
index 000000000000..34d8baaf558a
--- /dev/null
+++ b/tools/perf/util/counts.h
@@ -0,0 +1,37 @@
+#ifndef __PERF_COUNTS_H
+#define __PERF_COUNTS_H
+
+#include "xyarray.h"
+
+struct perf_counts_values {
+	union {
+		struct {
+			u64 val;
+			u64 ena;
+			u64 run;
+		};
+		u64 values[3];
+	};
+};
+
+struct perf_counts {
+	s8			  scaled;
+	struct perf_counts_values aggr;
+	struct xyarray		  *values;
+};
+
+
+static inline struct perf_counts_values*
+perf_counts(struct perf_counts *counts, int cpu, int thread)
+{
+	return xyarray__entry(counts->values, cpu, thread);
+}
+
+struct perf_counts *perf_counts__new(int ncpus, int nthreads);
+void perf_counts__delete(struct perf_counts *counts);
+
+void perf_evsel__reset_counts(struct perf_evsel *evsel);
+int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads);
+void perf_evsel__free_counts(struct perf_evsel *evsel);
+
+#endif /* __PERF_COUNTS_H */
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 6a129081f3ad..b948f69d2558 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -9,7 +9,7 @@
 #include "xyarray.h"
 #include "symbol.h"
 #include "cpumap.h"
-#include "stat.h"
+#include "counts.h"
 
 struct perf_evsel;
 
diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index 0766d98c5da5..51be28b1bca2 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -16,7 +16,7 @@ util/util.c
 util/xyarray.c
 util/cgroup.c
 util/rblist.c
-util/stat.c
+util/counts.c
 util/strlist.c
 util/trace-event.c
 ../lib/rbtree.c
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index c5c709cdc3ce..415c359de465 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -97,55 +97,6 @@ void perf_stat_evsel_id_init(struct perf_evsel *evsel)
 	}
 }
 
-struct perf_counts *perf_counts__new(int ncpus, int nthreads)
-{
-	struct perf_counts *counts = zalloc(sizeof(*counts));
-
-	if (counts) {
-		struct xyarray *values;
-
-		values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
-		if (!values) {
-			free(counts);
-			return NULL;
-		}
-
-		counts->values = values;
-	}
-
-	return counts;
-}
-
-void perf_counts__delete(struct perf_counts *counts)
-{
-	if (counts) {
-		xyarray__delete(counts->values);
-		free(counts);
-	}
-}
-
-static void perf_counts__reset(struct perf_counts *counts)
-{
-	xyarray__reset(counts->values);
-}
-
-void perf_evsel__reset_counts(struct perf_evsel *evsel)
-{
-	perf_counts__reset(evsel->counts);
-}
-
-int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads)
-{
-	evsel->counts = perf_counts__new(ncpus, nthreads);
-	return evsel->counts != NULL ? 0 : -ENOMEM;
-}
-
-void perf_evsel__free_counts(struct perf_evsel *evsel)
-{
-	perf_counts__delete(evsel->counts);
-	evsel->counts = NULL;
-}
-
 void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
 {
 	int i;
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 0b897b083682..62448c8175d3 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -33,23 +33,6 @@ enum aggr_mode {
 	AGGR_THREAD,
 };
 
-struct perf_counts_values {
-	union {
-		struct {
-			u64 val;
-			u64 ena;
-			u64 run;
-		};
-		u64 values[3];
-	};
-};
-
-struct perf_counts {
-	s8			  scaled;
-	struct perf_counts_values aggr;
-	struct xyarray		  *values;
-};
-
 struct perf_stat_config {
 	enum aggr_mode	aggr_mode;
 	bool		scale;
@@ -57,12 +40,6 @@ struct perf_stat_config {
 	unsigned int	interval;
 };
 
-static inline struct perf_counts_values*
-perf_counts(struct perf_counts *counts, int cpu, int thread)
-{
-	return xyarray__entry(counts->values, cpu, thread);
-}
-
 void update_stats(struct stats *stats, u64 val);
 double avg_stats(struct stats *stats);
 double stddev_stats(struct stats *stats);
@@ -96,13 +73,6 @@ void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
 void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
 				   double avg, int cpu, enum aggr_mode aggr);
 
-struct perf_counts *perf_counts__new(int ncpus, int nthreads);
-void perf_counts__delete(struct perf_counts *counts);
-
-void perf_evsel__reset_counts(struct perf_evsel *evsel);
-int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads);
-void perf_evsel__free_counts(struct perf_evsel *evsel);
-
 void perf_evsel__reset_stat_priv(struct perf_evsel *evsel);
 int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel);
 void perf_evsel__free_stat_priv(struct perf_evsel *evsel);
-- 
2.1.0