| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1383587947-17419-23-git-send-email-acme@infradead.org>
Date: Mon, 4 Nov 2013 14:59:00 -0300
From: Arnaldo Carvalho de Melo <acme@...radead.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org,
Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@...achi.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Frederic Weisbecker <fweisbec@...il.com>,
Namhyung Kim <namhyung@...nel.org>,
Steven Rostedt <rostedt@...dmis.org>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 22/29] tools lib traceevent: Add support for extracting trace_clock in report
From: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@...achi.com>
If trace-cmd extracts trace_clock, trace-cmd reads trace_clock data from
the trace.dat and switches outputting format of timestamp for each
trace_clock.
Signed-off-by: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@...achi.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Link: http://lkml.kernel.org/r/20130424231305.14877.86147.stgit@yunodevel
Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/lib/traceevent/event-parse.c | 50 +++++++++++++++++++++++++++++---------
tools/lib/traceevent/event-parse.h | 6 ++++-
2 files changed, 44 insertions(+), 12 deletions(-)
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index d1c2a6a4cd32..deedff9d06af 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -305,6 +305,11 @@ int pevent_register_comm(struct pevent *pevent, const char *comm, int pid)
return 0;
}
+void pevent_register_trace_clock(struct pevent *pevent, char *trace_clock)
+{
+ pevent->trace_clock = trace_clock;
+}
+
struct func_map {
unsigned long long addr;
char *func;
@@ -4443,8 +4448,21 @@ void pevent_event_info(struct trace_seq *s, struct event_format *event,
trace_seq_terminate(s);
}
+static bool is_timestamp_in_us(char *trace_clock, bool use_trace_clock)
+{
+ if (!use_trace_clock)
+ return true;
+
+ if (!strcmp(trace_clock, "local") || !strcmp(trace_clock, "global")
+ || !strcmp(trace_clock, "uptime") || !strcmp(trace_clock, "perf"))
+ return true;
+
+ /* trace_clock is setting in tsc or counter mode */
+ return false;
+}
+
void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
- struct pevent_record *record)
+ struct pevent_record *record, bool use_trace_clock)
{
static const char *spaces = " "; /* 20 spaces */
struct event_format *event;
@@ -4457,9 +4475,14 @@ void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
int pid;
int len;
int p;
+ bool use_usec_format;
- secs = record->ts / NSECS_PER_SEC;
- nsecs = record->ts - secs * NSECS_PER_SEC;
+ use_usec_format = is_timestamp_in_us(pevent->trace_clock,
+ use_trace_clock);
+ if (use_usec_format) {
+ secs = record->ts / NSECS_PER_SEC;
+ nsecs = record->ts - secs * NSECS_PER_SEC;
+ }
if (record->size < 0) {
do_warning("ug! negative record size %d", record->size);
@@ -4484,15 +4507,20 @@ void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
} else
trace_seq_printf(s, "%16s-%-5d [%03d]", comm, pid, record->cpu);
- if (pevent->flags & PEVENT_NSEC_OUTPUT) {
- usecs = nsecs;
- p = 9;
- } else {
- usecs = (nsecs + 500) / NSECS_PER_USEC;
- p = 6;
- }
+ if (use_usec_format) {
+ if (pevent->flags & PEVENT_NSEC_OUTPUT) {
+ usecs = nsecs;
+ p = 9;
+ } else {
+ usecs = (nsecs + 500) / NSECS_PER_USEC;
+ p = 6;
+ }
- trace_seq_printf(s, " %5lu.%0*lu: %s: ", secs, p, usecs, event->name);
+ trace_seq_printf(s, " %5lu.%0*lu: %s: ",
+ secs, p, usecs, event->name);
+ } else
+ trace_seq_printf(s, " %12llu: %s: ",
+ record->ts, event->name);
/* Space out the event names evenly. */
len = strlen(event->name);
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index c37b2026d04a..7503edf5ac6a 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -20,6 +20,7 @@
#ifndef _PARSE_EVENTS_H
#define _PARSE_EVENTS_H
+#include <stdbool.h>
#include <stdarg.h>
#include <regex.h>
@@ -450,6 +451,8 @@ struct pevent {
/* cache */
struct event_format *last_event;
+
+ char *trace_clock;
};
static inline void pevent_set_flag(struct pevent *pevent, int flag)
@@ -527,6 +530,7 @@ enum trace_flag_type {
};
int pevent_register_comm(struct pevent *pevent, const char *comm, int pid);
+void pevent_register_trace_clock(struct pevent *pevent, char *trace_clock);
int pevent_register_function(struct pevent *pevent, char *name,
unsigned long long addr, char *mod);
int pevent_register_print_string(struct pevent *pevent, char *fmt,
@@ -534,7 +538,7 @@ int pevent_register_print_string(struct pevent *pevent, char *fmt,
int pevent_pid_is_registered(struct pevent *pevent, int pid);
void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
- struct pevent_record *record);
+ struct pevent_record *record, bool use_trace_clock);
int pevent_parse_header_page(struct pevent *pevent, char *buf, unsigned long size,
int long_size);
--
1.8.1.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists