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Date: Wed, 5 Aug 2020 11:34:38 +0200
From: Jiri Olsa <jolsa@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: lkml <linux-kernel@...r.kernel.org>,
Ingo Molnar <mingo@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Michael Petlan <mpetlan@...hat.com>,
Ian Rogers <irogers@...gle.com>,
Andi Kleen <ak@...ux.intel.com>,
David Ahern <dsahern@...il.com>,
Geneviève Bastien <gbastien@...satic.net>,
Wang Nan <wangnan0@...wei.com>,
Jeremie Galarneau <jgalar@...icios.com>
Subject: [PATCH v2 1/7] perf tools: Move parse_clockid into clockid object
Move parse_clockid and all needed clcckid related stuff
into clockid object. We are going to add clockid_name
function in following change, so it's better it's placed
in separated object and not in builtin-record.c.
No functional change is intended.
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
tools/perf/builtin-record.c | 98 +-------------------------------
tools/perf/util/Build | 1 +
tools/perf/util/clockid.c | 108 ++++++++++++++++++++++++++++++++++++
tools/perf/util/clockid.h | 9 +++
4 files changed, 119 insertions(+), 97 deletions(-)
create mode 100644 tools/perf/util/clockid.c
create mode 100644 tools/perf/util/clockid.h
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index b6bdccd875bc..eb42d2d9d16b 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -46,6 +46,7 @@
#include "util/bpf-event.h"
#include "util/util.h"
#include "util/pfm.h"
+#include "util/clockid.h"
#include "asm/bug.h"
#include "perf.h"
@@ -2078,103 +2079,6 @@ static int perf_record_config(const char *var, const char *value, void *cb)
return 0;
}
-struct clockid_map {
- const char *name;
- int clockid;
-};
-
-#define CLOCKID_MAP(n, c) \
- { .name = n, .clockid = (c), }
-
-#define CLOCKID_END { .name = NULL, }
-
-
-/*
- * Add the missing ones, we need to build on many distros...
- */
-#ifndef CLOCK_MONOTONIC_RAW
-#define CLOCK_MONOTONIC_RAW 4
-#endif
-#ifndef CLOCK_BOOTTIME
-#define CLOCK_BOOTTIME 7
-#endif
-#ifndef CLOCK_TAI
-#define CLOCK_TAI 11
-#endif
-
-static const struct clockid_map clockids[] = {
- /* available for all events, NMI safe */
- CLOCKID_MAP("monotonic", CLOCK_MONOTONIC),
- CLOCKID_MAP("monotonic_raw", CLOCK_MONOTONIC_RAW),
-
- /* available for some events */
- CLOCKID_MAP("realtime", CLOCK_REALTIME),
- CLOCKID_MAP("boottime", CLOCK_BOOTTIME),
- CLOCKID_MAP("tai", CLOCK_TAI),
-
- /* available for the lazy */
- CLOCKID_MAP("mono", CLOCK_MONOTONIC),
- CLOCKID_MAP("raw", CLOCK_MONOTONIC_RAW),
- CLOCKID_MAP("real", CLOCK_REALTIME),
- CLOCKID_MAP("boot", CLOCK_BOOTTIME),
-
- CLOCKID_END,
-};
-
-static int get_clockid_res(clockid_t clk_id, u64 *res_ns)
-{
- struct timespec res;
-
- *res_ns = 0;
- if (!clock_getres(clk_id, &res))
- *res_ns = res.tv_nsec + res.tv_sec * NSEC_PER_SEC;
- else
- pr_warning("WARNING: Failed to determine specified clock resolution.\n");
-
- return 0;
-}
-
-static int parse_clockid(const struct option *opt, const char *str, int unset)
-{
- struct record_opts *opts = (struct record_opts *)opt->value;
- const struct clockid_map *cm;
- const char *ostr = str;
-
- if (unset) {
- opts->use_clockid = 0;
- return 0;
- }
-
- /* no arg passed */
- if (!str)
- return 0;
-
- /* no setting it twice */
- if (opts->use_clockid)
- return -1;
-
- opts->use_clockid = true;
-
- /* if its a number, we're done */
- if (sscanf(str, "%d", &opts->clockid) == 1)
- return get_clockid_res(opts->clockid, &opts->clockid_res_ns);
-
- /* allow a "CLOCK_" prefix to the name */
- if (!strncasecmp(str, "CLOCK_", 6))
- str += 6;
-
- for (cm = clockids; cm->name; cm++) {
- if (!strcasecmp(str, cm->name)) {
- opts->clockid = cm->clockid;
- return get_clockid_res(opts->clockid,
- &opts->clockid_res_ns);
- }
- }
-
- opts->use_clockid = false;
- ui__warning("unknown clockid %s, check man page\n", ostr);
- return -1;
-}
static int record__parse_affinity(const struct option *opt, const char *str, int unset)
{
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 380e6a9f564d..494626e303f5 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -128,6 +128,7 @@ perf-y += expr-bison.o
perf-y += expr.o
perf-y += branch.o
perf-y += mem2node.o
+perf-y += clockid.o
perf-$(CONFIG_LIBBPF) += bpf-loader.o
perf-$(CONFIG_LIBBPF) += bpf_map.o
diff --git a/tools/perf/util/clockid.c b/tools/perf/util/clockid.c
new file mode 100644
index 000000000000..b7a08606dc3e
--- /dev/null
+++ b/tools/perf/util/clockid.c
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <subcmd/parse-options.h>
+#include <stdio.h>
+#include <time.h>
+#include <strings.h>
+#include <linux/time64.h>
+#include "debug.h"
+#include "clockid.h"
+#include "record.h"
+
+struct clockid_map {
+ const char *name;
+ int clockid;
+};
+
+#define CLOCKID_MAP(n, c) \
+ { .name = n, .clockid = (c), }
+
+#define CLOCKID_END { .name = NULL, }
+
+
+/*
+ * Add the missing ones, we need to build on many distros...
+ */
+#ifndef CLOCK_MONOTONIC_RAW
+#define CLOCK_MONOTONIC_RAW 4
+#endif
+#ifndef CLOCK_BOOTTIME
+#define CLOCK_BOOTTIME 7
+#endif
+#ifndef CLOCK_TAI
+#define CLOCK_TAI 11
+#endif
+
+static const struct clockid_map clockids[] = {
+ /* available for all events, NMI safe */
+ CLOCKID_MAP("monotonic", CLOCK_MONOTONIC),
+ CLOCKID_MAP("monotonic_raw", CLOCK_MONOTONIC_RAW),
+
+ /* available for some events */
+ CLOCKID_MAP("realtime", CLOCK_REALTIME),
+ CLOCKID_MAP("boottime", CLOCK_BOOTTIME),
+ CLOCKID_MAP("tai", CLOCK_TAI),
+
+ /* available for the lazy */
+ CLOCKID_MAP("mono", CLOCK_MONOTONIC),
+ CLOCKID_MAP("raw", CLOCK_MONOTONIC_RAW),
+ CLOCKID_MAP("real", CLOCK_REALTIME),
+ CLOCKID_MAP("boot", CLOCK_BOOTTIME),
+
+ CLOCKID_END,
+};
+
+static int get_clockid_res(clockid_t clk_id, u64 *res_ns)
+{
+ struct timespec res;
+
+ *res_ns = 0;
+ if (!clock_getres(clk_id, &res))
+ *res_ns = res.tv_nsec + res.tv_sec * NSEC_PER_SEC;
+ else
+ pr_warning("WARNING: Failed to determine specified clock resolution.\n");
+
+ return 0;
+}
+
+int parse_clockid(const struct option *opt, const char *str, int unset)
+{
+ struct record_opts *opts = (struct record_opts *)opt->value;
+ const struct clockid_map *cm;
+ const char *ostr = str;
+
+ if (unset) {
+ opts->use_clockid = 0;
+ return 0;
+ }
+
+ /* no arg passed */
+ if (!str)
+ return 0;
+
+ /* no setting it twice */
+ if (opts->use_clockid)
+ return -1;
+
+ opts->use_clockid = true;
+
+ /* if its a number, we're done */
+ if (sscanf(str, "%d", &opts->clockid) == 1)
+ return get_clockid_res(opts->clockid, &opts->clockid_res_ns);
+
+ /* allow a "CLOCK_" prefix to the name */
+ if (!strncasecmp(str, "CLOCK_", 6))
+ str += 6;
+
+ for (cm = clockids; cm->name; cm++) {
+ if (!strcasecmp(str, cm->name)) {
+ opts->clockid = cm->clockid;
+ return get_clockid_res(opts->clockid,
+ &opts->clockid_res_ns);
+ }
+ }
+
+ opts->use_clockid = false;
+ ui__warning("unknown clockid %s, check man page\n", ostr);
+ return -1;
+}
diff --git a/tools/perf/util/clockid.h b/tools/perf/util/clockid.h
new file mode 100644
index 000000000000..8e567b3ebbbd
--- /dev/null
+++ b/tools/perf/util/clockid.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __PERF_CLOCKID_H
+#define __PERF_CLOCKID_H
+
+struct option;
+int parse_clockid(const struct option *opt, const char *str, int unset);
+
+#endif
--
2.25.4
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