[RFC PATCH 4/6] tracing: add TRACE_EVENT_MAP

This macro allows to create an alias of an existing TRACE_EVENT. A TRACE_EVENT_MAP connects a new probe to an existing tracepoint, so we can use it to create another output of the same tracepoint without changing the instrumented code. This allows to create alternate versions of existing

[RFC PATCH 4/6] tracing: add TRACE_EVENT_MAP

This macro allows to create an alias of an existing TRACE_EVENT. A TRACE_EVENT_MAP connects a new probe to an existing tracepoint, so we can use it to create another output of the same tracepoint without changing the instrumented code. This allows to create alternate versions of existing