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@arm.com

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

FWIW,

Acked-by: Suzuki K Poulose suzuki.poulose@arm.com