[PATCH v2 7/9] perf cs-etm: Create ETE decoder

Suzuki K Poulose suzuki.poulose at arm.com
Fri Sep 3 02:15:07 PDT 2021


On 06/08/2021 14:41, James Clark wrote:
> If the magic number indicates ETE instantiate a OCSD_BUILTIN_DCD_ETE
> decoder instead of OCSD_BUILTIN_DCD_ETMV4I. ETE is the new trace feature
> for Armv9.
> 
> Testing performed
> =================
> 
> * Old files with v0 and v1 headers for ETMv4 still open correctly
> * New files with new magic number open on new versions of perf
> * New files with new magic number fail to open on old versions of perf
> * Decoding with the ETE decoder results in the same output as the ETMv4
>    decoder as long as there are no new ETE packet types
> 
> Signed-off-by: James Clark <james.clark at arm.com>

Changes look good to me with my limited knowledge about the decoder
facing code.

FWIW,

Acked-by: Suzuki K Poulose <suzuki.poulose at arm.com>




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