From d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:45:28 +0000
Subject: [PATCH] add boot partition size
---
kernel/tools/perf/util/time-utils.c | 191 +++++++++++++++++++++++++++++++++++++++++------
1 files changed, 164 insertions(+), 27 deletions(-)
diff --git a/kernel/tools/perf/util/time-utils.c b/kernel/tools/perf/util/time-utils.c
index 6193b46..3024439 100644
--- a/kernel/tools/perf/util/time-utils.c
+++ b/kernel/tools/perf/util/time-utils.c
@@ -1,16 +1,19 @@
// SPDX-License-Identifier: GPL-2.0
#include <stdlib.h>
#include <string.h>
+#include <linux/string.h>
#include <sys/time.h>
#include <linux/time64.h>
#include <time.h>
#include <errno.h>
#include <inttypes.h>
#include <math.h>
+#include <linux/ctype.h>
-#include "perf.h"
#include "debug.h"
#include "time-utils.h"
+#include "session.h"
+#include "evlist.h"
int parse_nsec_time(const char *str, u64 *ptime)
{
@@ -114,6 +117,66 @@
return rc;
}
+static int perf_time__parse_strs(struct perf_time_interval *ptime,
+ const char *ostr, int size)
+{
+ const char *cp;
+ char *str, *arg, *p;
+ int i, num = 0, rc = 0;
+
+ /* Count the commas */
+ for (cp = ostr; *cp; cp++)
+ num += !!(*cp == ',');
+
+ if (!num)
+ return -EINVAL;
+
+ BUG_ON(num > size);
+
+ str = strdup(ostr);
+ if (!str)
+ return -ENOMEM;
+
+ /* Split the string and parse each piece, except the last */
+ for (i = 0, p = str; i < num - 1; i++) {
+ arg = p;
+ /* Find next comma, there must be one */
+ p = skip_spaces(strchr(p, ',') + 1);
+ /* Skip the value, must not contain space or comma */
+ while (*p && !isspace(*p)) {
+ if (*p++ == ',') {
+ rc = -EINVAL;
+ goto out;
+ }
+ }
+ /* Split and parse */
+ if (*p)
+ *p++ = 0;
+ rc = perf_time__parse_str(ptime + i, arg);
+ if (rc < 0)
+ goto out;
+ }
+
+ /* Parse the last piece */
+ rc = perf_time__parse_str(ptime + i, p);
+ if (rc < 0)
+ goto out;
+
+ /* Check there is no overlap */
+ for (i = 0; i < num - 1; i++) {
+ if (ptime[i].end >= ptime[i + 1].start) {
+ rc = -EINVAL;
+ goto out;
+ }
+ }
+
+ rc = num;
+out:
+ free(str);
+
+ return rc;
+}
+
static int parse_percent(double *pcnt, char *str)
{
char *c, *endptr;
@@ -133,12 +196,30 @@
return 0;
}
+static int set_percent_time(struct perf_time_interval *ptime, double start_pcnt,
+ double end_pcnt, u64 start, u64 end)
+{
+ u64 total = end - start;
+
+ if (start_pcnt < 0.0 || start_pcnt > 1.0 ||
+ end_pcnt < 0.0 || end_pcnt > 1.0) {
+ return -1;
+ }
+
+ ptime->start = start + round(start_pcnt * total);
+ ptime->end = start + round(end_pcnt * total);
+
+ if (ptime->end > ptime->start && ptime->end != end)
+ ptime->end -= 1;
+
+ return 0;
+}
+
static int percent_slash_split(char *str, struct perf_time_interval *ptime,
u64 start, u64 end)
{
char *p, *end_str;
double pcnt, start_pcnt, end_pcnt;
- u64 total = end - start;
int i;
/*
@@ -166,15 +247,7 @@
start_pcnt = pcnt * (i - 1);
end_pcnt = pcnt * i;
- if (start_pcnt < 0.0 || start_pcnt > 1.0 ||
- end_pcnt < 0.0 || end_pcnt > 1.0) {
- return -1;
- }
-
- ptime->start = start + round(start_pcnt * total);
- ptime->end = start + round(end_pcnt * total);
-
- return 0;
+ return set_percent_time(ptime, start_pcnt, end_pcnt, start, end);
}
static int percent_dash_split(char *str, struct perf_time_interval *ptime,
@@ -182,7 +255,6 @@
{
char *start_str = NULL, *end_str;
double start_pcnt, end_pcnt;
- u64 total = end - start;
int ret;
/*
@@ -201,16 +273,7 @@
free(start_str);
- if (start_pcnt < 0.0 || start_pcnt > 1.0 ||
- end_pcnt < 0.0 || end_pcnt > 1.0 ||
- start_pcnt > end_pcnt) {
- return -1;
- }
-
- ptime->start = start + round(start_pcnt * total);
- ptime->end = start + round(end_pcnt * total);
-
- return 0;
+ return set_percent_time(ptime, start_pcnt, end_pcnt, start, end);
}
typedef int (*time_pecent_split)(char *, struct perf_time_interval *,
@@ -374,7 +437,7 @@
struct perf_time_interval *ptime;
int i;
- if ((timestamp == 0) || (num == 0))
+ if ((!ptime_buf) || (timestamp == 0) || (num == 0))
return false;
if (num == 1)
@@ -387,13 +450,79 @@
ptime = &ptime_buf[i];
if (timestamp >= ptime->start &&
- ((timestamp < ptime->end && i < num - 1) ||
- (timestamp <= ptime->end && i == num - 1))) {
- break;
+ (timestamp <= ptime->end || !ptime->end)) {
+ return false;
}
}
- return (i == num) ? true : false;
+ return true;
+}
+
+int perf_time__parse_for_ranges_reltime(const char *time_str,
+ struct perf_session *session,
+ struct perf_time_interval **ranges,
+ int *range_size, int *range_num,
+ bool reltime)
+{
+ bool has_percent = strchr(time_str, '%');
+ struct perf_time_interval *ptime_range;
+ int size, num, ret = -EINVAL;
+
+ ptime_range = perf_time__range_alloc(time_str, &size);
+ if (!ptime_range)
+ return -ENOMEM;
+
+ if (has_percent || reltime) {
+ if (session->evlist->first_sample_time == 0 &&
+ session->evlist->last_sample_time == 0) {
+ pr_err("HINT: no first/last sample time found in perf data.\n"
+ "Please use latest perf binary to execute 'perf record'\n"
+ "(if '--buildid-all' is enabled, please set '--timestamp-boundary').\n");
+ goto error;
+ }
+ }
+
+ if (has_percent) {
+ num = perf_time__percent_parse_str(
+ ptime_range, size,
+ time_str,
+ session->evlist->first_sample_time,
+ session->evlist->last_sample_time);
+ } else {
+ num = perf_time__parse_strs(ptime_range, time_str, size);
+ }
+
+ if (num < 0)
+ goto error_invalid;
+
+ if (reltime) {
+ int i;
+
+ for (i = 0; i < num; i++) {
+ ptime_range[i].start += session->evlist->first_sample_time;
+ ptime_range[i].end += session->evlist->first_sample_time;
+ }
+ }
+
+ *range_size = size;
+ *range_num = num;
+ *ranges = ptime_range;
+ return 0;
+
+error_invalid:
+ pr_err("Invalid time string\n");
+error:
+ free(ptime_range);
+ return ret;
+}
+
+int perf_time__parse_for_ranges(const char *time_str,
+ struct perf_session *session,
+ struct perf_time_interval **ranges,
+ int *range_size, int *range_num)
+{
+ return perf_time__parse_for_ranges_reltime(time_str, session, ranges,
+ range_size, range_num, false);
}
int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz)
@@ -404,6 +533,14 @@
return scnprintf(buf, sz, "%"PRIu64".%06"PRIu64, sec, usec);
}
+int timestamp__scnprintf_nsec(u64 timestamp, char *buf, size_t sz)
+{
+ u64 sec = timestamp / NSEC_PER_SEC,
+ nsec = timestamp % NSEC_PER_SEC;
+
+ return scnprintf(buf, sz, "%" PRIu64 ".%09" PRIu64, sec, nsec);
+}
+
int fetch_current_timestamp(char *buf, size_t sz)
{
struct timeval tv;
--
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