Event Recording/CTF: Get closer to LTTNG output
Sebastian Huber
sebastian.huber at embedded-brains.de
Thu Jul 11 09:29:57 UTC 2019
On 11/07/2019 11:24, Ravindra Kumar Meena wrote:
> the basic structure is now similar to the LTTNG output. The next
> step is
> to produce a packet header identical to LTTNG:
>
> trace {
> major = 1;
> minor = 8;
> uuid = "6a7715d0-b502-4c65-8678-6777ac7f755a";
> byte_order = le;
> packet.header := struct {
> uint32_t magic;
> uint8_t uuid[16];
Why don't you simply use the above in your C code as well?
> uint32_t stream_id;
> uint64_t stream_instance_id;
> };
> };
>
> I have added the ctf magic(0xC1FC1FC1) in header. I am facing difficulty
> in adding uuid in header. uuid is 128 a bit number which has 5 octets of
> 8-4-4-4-12 bytes.
[...]
--
Sebastian Huber, embedded brains GmbH
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