When tsc2nsec clock is used, save it as selected clock in the trace.dat
file. When reading the file, in case of tsc2nsec clock show timestamps
in usec / nsec.
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@xxxxxxxxx>
---
lib/trace-cmd/include/private/trace-cmd-private.h | 2 ++
lib/trace-cmd/trace-input.c | 2 +-
tracecmd/trace-record.c | 9 +++++----
3 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/lib/trace-cmd/include/private/trace-cmd-private.h b/lib/trace-cmd/include/private/trace-cmd-private.h
index ce3d8dc0..c33d067a 100644
--- a/lib/trace-cmd/include/private/trace-cmd-private.h
+++ b/lib/trace-cmd/include/private/trace-cmd-private.h
@@ -22,6 +22,8 @@
#define TRACECMD_ERROR(ret) ((void *)((unsigned long)(ret) | TRACECMD_ERR_MSK))
#define TRACECMD_PTR2ERR(ptr) ((unisgned long)(ptr) & ~TRACECMD_ERR_MSK)
+#define TSCNSEC_CLOCK "tsc2nsec"
+
void tracecmd_parse_cmdlines(struct tep_handle *pevent, char *file, int size);
void tracecmd_parse_proc_kallsyms(struct tep_handle *pevent, char *file, unsigned int size);
void tracecmd_parse_ftrace_printk(struct tep_handle *pevent, char *file, unsigned int size);
diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c
index ebc28f7b..67915f25 100644
--- a/lib/trace-cmd/trace-input.c
+++ b/lib/trace-cmd/trace-input.c
@@ -2906,7 +2906,7 @@ static void extract_trace_clock(struct tracecmd_input *handle, char *line)
/* Clear usecs if not one of the specified clocks */
if (strcmp(clock, "local") && strcmp(clock, "global") &&
strcmp(clock, "uptime") && strcmp(clock, "perf") &&
- strncmp(clock, "mono", 4))
+ strncmp(clock, "mono", 4) && strcmp(clock, TSCNSEC_CLOCK))
handle->flags &= ~TRACECMD_FL_IN_USECS;
}
diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c
index 9f8c4943..b7f6f438 100644
--- a/tracecmd/trace-record.c
+++ b/tracecmd/trace-record.c
@@ -58,7 +58,6 @@
#define STAMP "stamp"
#define FUNC_STACK_TRACE "func_stack_trace"
#define TSC_CLOCK "x86-tsc"
-#define TSCNSEC_CLOCK "tsc2nsec"
enum trace_type {
TRACE_TYPE_RECORD = 1,
@@ -4168,7 +4167,8 @@ static void write_guest_file(struct buffer_instance *instance)
handle = tracecmd_get_output_handle_fd(fd);
if (!handle)
die("error writing to %s", file);
-
+ if (instance->flags & BUFFER_FL_TSC2NSEC)
+ tracecmd_set_out_clock(handle, TSCNSEC_CLOCK);
temp_files = malloc(sizeof(*temp_files) * cpu_count);
if (!temp_files)
die("failed to allocate temp_files for %d cpus",
@@ -4290,9 +4290,10 @@ static void record_data(struct common_record_context *ctx)
add_guest_info(handle, instance);
}
- if (ctx->tsc2nsec.mult)
+ if (ctx->tsc2nsec.mult) {
add_tsc2nsec(handle, &ctx->tsc2nsec);
-
+ tracecmd_set_out_clock(handle, TSCNSEC_CLOCK);
+ }
if (tracecmd_write_cmdlines(handle))
die("Writing cmdlines");
--
2.30.2
|