[PATCH v2 07/16] perf stat: Move stat_config into config.c

[Ian Rogers <irogers@google.com>]

stat_config is accessed by config.c via helper functions, but declared
in builtin-stat. Move to util/config.c so that stub functions aren't
needed in python.c which doesn't link against the builtin files.

To avoid name conflicts change builtin-script to use the same
stat_config as builtin-stat. Rename local variables in tests to avoid
shadow declaration warnings.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/builtin-script.c |  1 -
 tools/perf/builtin-stat.c   | 27 ---------------------------
 tools/perf/tests/stat.c     | 16 +++++++++-------
 tools/perf/util/config.c    | 27 +++++++++++++++++++++++++++
 tools/perf/util/path.c      | 10 ++++++++++
 tools/perf/util/path.h      |  1 +
 tools/perf/util/python.c    |  9 ---------
 tools/perf/util/stat.h      |  3 ++-
 8 files changed, 49 insertions(+), 45 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 27b2fb08ad67..1ce7b71f1f46 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -85,7 +85,6 @@ static bool			system_wide;
 static bool			print_flags;
 static const char		*cpu_list;
 static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
-static struct perf_stat_config	stat_config;
 static int			max_blocks;
 static bool			native_arch;
 static struct dlfilter		*dlfilter;
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index b5e18853982c..7c7424824b0e 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -112,8 +112,6 @@ static struct target target = {
 	.uid	= UINT_MAX,
 };
 
-#define METRIC_ONLY_LEN 20
-
 static volatile sig_atomic_t	child_pid			= -1;
 static int			detailed_run			=  0;
 static bool			transaction_run;
@@ -151,21 +149,6 @@ static struct perf_stat		perf_stat;
 
 static volatile sig_atomic_t done = 0;
 
-static struct perf_stat_config stat_config = {
-	.aggr_mode		= AGGR_GLOBAL,
-	.aggr_level		= MAX_CACHE_LVL + 1,
-	.scale			= true,
-	.unit_width		= 4, /* strlen("unit") */
-	.run_count		= 1,
-	.metric_only_len	= METRIC_ONLY_LEN,
-	.walltime_nsecs_stats	= &walltime_nsecs_stats,
-	.ru_stats		= &ru_stats,
-	.big_num		= true,
-	.ctl_fd			= -1,
-	.ctl_fd_ack		= -1,
-	.iostat_run		= false,
-};
-
 /* Options set from the command line. */
 struct opt_aggr_mode {
 	bool node, socket, die, cluster, cache, core, thread, no_aggr;
@@ -1059,16 +1042,6 @@ static void sig_atexit(void)
 	kill(getpid(), signr);
 }
 
-void perf_stat__set_big_num(int set)
-{
-	stat_config.big_num = (set != 0);
-}
-
-void perf_stat__set_no_csv_summary(int set)
-{
-	stat_config.no_csv_summary = (set != 0);
-}
-
 static int stat__set_big_num(const struct option *opt __maybe_unused,
 			     const char *s __maybe_unused, int unset)
 {
diff --git a/tools/perf/tests/stat.c b/tools/perf/tests/stat.c
index 6468cc0d0204..d60983657bad 100644
--- a/tools/perf/tests/stat.c
+++ b/tools/perf/tests/stat.c
@@ -27,7 +27,7 @@ static int process_stat_config_event(const struct perf_tool *tool __maybe_unused
 				     struct machine *machine __maybe_unused)
 {
 	struct perf_record_stat_config *config = &event->stat_config;
-	struct perf_stat_config stat_config = {};
+	struct perf_stat_config test_stat_config = {};
 
 #define HAS(term, val) \
 	has_term(config, PERF_STAT_CONFIG_TERM__##term, val)
@@ -39,25 +39,27 @@ static int process_stat_config_event(const struct perf_tool *tool __maybe_unused
 
 #undef HAS
 
-	perf_event__read_stat_config(&stat_config, config);
+	perf_event__read_stat_config(&test_stat_config, config);
 
-	TEST_ASSERT_VAL("wrong aggr_mode", stat_config.aggr_mode == AGGR_CORE);
-	TEST_ASSERT_VAL("wrong scale",     stat_config.scale == 1);
-	TEST_ASSERT_VAL("wrong interval",  stat_config.interval == 1);
+	TEST_ASSERT_VAL("wrong aggr_mode", test_stat_config.aggr_mode == AGGR_CORE);
+	TEST_ASSERT_VAL("wrong scale",     test_stat_config.scale == 1);
+	TEST_ASSERT_VAL("wrong interval",  test_stat_config.interval == 1);
 	return 0;
 }
 
 static int test__synthesize_stat_config(struct test_suite *test __maybe_unused,
 					int subtest __maybe_unused)
 {
-	struct perf_stat_config stat_config = {
+	struct perf_stat_config test_stat_config = {
 		.aggr_mode	= AGGR_CORE,
 		.scale		= 1,
 		.interval	= 1,
 	};
 
 	TEST_ASSERT_VAL("failed to synthesize stat_config",
-		!perf_event__synthesize_stat_config(NULL, &stat_config, process_stat_config_event, NULL));
+		!perf_event__synthesize_stat_config(NULL, &test_stat_config,
+						    process_stat_config_event,
+						    NULL));
 
 	return 0;
 }
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index 68f9407ca74b..2d07c9257a1a 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -13,6 +13,7 @@
 #include <sys/param.h>
 #include "cache.h"
 #include "callchain.h"
+#include "header.h"
 #include <subcmd/exec-cmd.h>
 #include "util/event.h"  /* proc_map_timeout */
 #include "util/hist.h"  /* perf_hist_config */
@@ -34,6 +35,22 @@
 
 #define DEBUG_CACHE_DIR ".debug"
 
+#define METRIC_ONLY_LEN 20
+
+struct perf_stat_config stat_config = {
+	.aggr_mode		= AGGR_GLOBAL,
+	.aggr_level		= MAX_CACHE_LVL + 1,
+	.scale			= true,
+	.unit_width		= 4, /* strlen("unit") */
+	.run_count		= 1,
+	.metric_only_len	= METRIC_ONLY_LEN,
+	.walltime_nsecs_stats	= &walltime_nsecs_stats,
+	.ru_stats		= &ru_stats,
+	.big_num		= true,
+	.ctl_fd			= -1,
+	.ctl_fd_ack		= -1,
+	.iostat_run		= false,
+};
 
 char buildid_dir[MAXPATHLEN]; /* root dir for buildid, binary cache */
 
@@ -455,6 +472,16 @@ static int perf_ui_config(const char *var, const char *value)
 	return 0;
 }
 
+void perf_stat__set_big_num(int set)
+{
+	stat_config.big_num = (set != 0);
+}
+
+static void perf_stat__set_no_csv_summary(int set)
+{
+	stat_config.no_csv_summary = (set != 0);
+}
+
 static int perf_stat_config(const char *var, const char *value)
 {
 	if (!strcmp(var, "stat.big-num"))
diff --git a/tools/perf/util/path.c b/tools/perf/util/path.c
index 00adf872bf00..9712466c51e2 100644
--- a/tools/perf/util/path.c
+++ b/tools/perf/util/path.c
@@ -68,6 +68,16 @@ bool is_directory(const char *base_path, const struct dirent *dent)
 	return S_ISDIR(st.st_mode);
 }
 
+bool is_directory_at(int dir_fd, const char *path)
+{
+	struct stat st;
+
+	if (fstatat(dir_fd, path, &st, /*flags=*/0))
+		return false;
+
+	return S_ISDIR(st.st_mode);
+}
+
 bool is_executable_file(const char *base_path, const struct dirent *dent)
 {
 	char path[PATH_MAX];
diff --git a/tools/perf/util/path.h b/tools/perf/util/path.h
index d94902c22222..fbafbe7015dd 100644
--- a/tools/perf/util/path.h
+++ b/tools/perf/util/path.h
@@ -12,6 +12,7 @@ int path__join3(char *bf, size_t size, const char *path1, const char *path2, con
 
 bool is_regular_file(const char *file);
 bool is_directory(const char *base_path, const struct dirent *dent);
+bool is_directory_at(int dir_fd, const char *path);
 bool is_executable_file(const char *base_path, const struct dirent *dent);
 
 #endif /* _PERF_PATH_H */
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 5f11ae88943d..0fa8e27769be 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -17,7 +17,6 @@
 #include "trace-event.h"
 #include "mmap.h"
 #include "util/env.h"
-#include "util/kvm-stat.h"
 #include "util/kwork.h"
 #include "util/sample.h"
 #include "util/lock-contention.h"
@@ -1306,14 +1305,6 @@ PyMODINIT_FUNC PyInit_perf(void)
 /* The following are stubs to avoid dragging in builtin-* objects. */
 /* TODO: move the code out of the builtin-* file into util. */
 
-void perf_stat__set_no_csv_summary(int set __maybe_unused)
-{
-}
-
-void perf_stat__set_big_num(int set __maybe_unused)
-{
-}
-
 int script_spec_register(const char *spec __maybe_unused, struct scripting_ops *ops __maybe_unused)
 {
 	return -1;
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index fd7a187551bd..78ddc14507b7 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -117,8 +117,9 @@ struct perf_stat_config {
 	unsigned int		topdown_level;
 };
 
+extern struct perf_stat_config stat_config;
+
 void perf_stat__set_big_num(int set);
-void perf_stat__set_no_csv_summary(int set);
 
 void update_stats(struct stats *stats, u64 val);
 double avg_stats(struct stats *stats);
-- 
2.47.0.rc1.288.g06298d1525-goog