tree f1c10a5446805fcff2f1f59f20624d00f68da785
parent a19ff2508e37fce5e4909e0b717c3a4d2f0be679
author Brendan Jackman <brendan.jackman@arm.com> 1497449003 +0100
committer KP Singh <kpsingh@google.com> 1498769558 +0200

ftrace: Store and retrieve window params in trace cache

Store a JSON file with the parameters used to parse a trace in the cache. If, on
retrieval, we find a mismatch then simply invalidate the cache.

A richer implementation might detect whether we can still use the cache (e.g. if
the requested window is a subset of the cached one), but for now I don't think
that's worth the effort/complexity.

Reviewed-by: KP Singh <kpsingh@google.com>