On 16/06/2019 20:13, Ravindra Meena wrote:
---
misc/CTF/record-ctf.ref | 55 +++++++++++++++++++++++++++++++++----------------
1 file changed, 37 insertions(+), 18 deletions(-)
diff --git a/misc/CTF/record-ctf.ref b/misc/CTF/record-ctf.ref
index a27757c..bdb9648 100644
--- a/misc/CTF/record-ctf.ref
+++ b/misc/CTF/record-ctf.ref
[...]
clock {
- name = ctf_clock;
- freq = 1000;
- offset_s = 1421703448;
+ name = ctf_clock; /* name of montonic clock */
+ freq = 1000; /* frequency, in HZ */
Why 1000Hz?
+ offset_s = 1421703448;
What is this for an offset?
};
+/*
+ * A reference to the clock added within an integer type
+ */
+
typealias integer {
size = 64;
map = clock.ctf_clock.value;
} := ctf_clock_int_t;
Why does this start with "ctf_"?
+/*
+ * Trace stream packet having header and context.
+ *
+ * @param event.header includes id(unique identifier of stream) and timestamp.
+ * @param packet.context includes clock timestamp, cpu id, event and event
data.
+ */
+
stream {
id = 0;
+ event.header := struct {
+ uint32_t id;
What is this for an id?
+ ctf_clock_int_t timestamp;
Timestamp of what?
+ };
packet.context := struct {
ctf_clock_int_t timestamp;
uint32_t cpu;
uint32_t event;
uint64_t data;
};
- event.header := struct {
- uint32_t id;
- ctf_clock_int_t timestamp;
- };
};
event {
- id = 0;
- name = "ctf_event";
- stream_id = 0;
+ id = 0; /* event id
+ name = "ctf_event"; /* event name */
+ stream_id = 0; /* signifies stream id which event is supposed to concat
with events */
fields := struct {
- uint32_t a;
- uint16_t b;
- string c;
+ uint32_t a; /*event 1*/
+ uint16_t b; /*event 2*/
+ string c; /*event 3*/
What are events 1, 2, 3?
--
Sebastian Huber, embedded brains GmbH
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