After patch 7e066fb870fc ("tracepoints: add DECLARE_TRACE() and
DEFINE_TRACE()"),
the trace APIs declared by "TRACE_EVENT(irq_handler_entry" can not be directly
used
by ko, because it's not explicitly exported by EXPORT_TRACEPOINT_SYMBOL_GPL or
EXPORT_TRACEPOINT_SYMBOL.
Did we miss it? or it's not recommended to be used in ko?
-------------
commit 7e066fb870fcd1025ec3ba7bbde5d541094f4ce1
Author: Mathieu Desnoyers <mathieu.desnoy...@polymtl.ca>
Date: Fri Nov 14 17:47:47 2008 -0500
tracepoints: add DECLARE_TRACE() and DEFINE_TRACE()
Impact: API *CHANGE*. Must update all tracepoint users.
Add DEFINE_TRACE() to tracepoints to let them declare the tracepoint
structure in a single spot for all the kernel. It helps reducing memory
consumption, especially when declaring a lot of tracepoints, e.g. for
kmalloc tracing.
*API CHANGE WARNING*: now, DECLARE_TRACE() must be used in headers for
tracepoint declarations rather than DEFINE_TRACE(). This is the sane way
to do it. The name previously used was misleading.
Updates scheduler instrumentation to follow this API change.
--
Thanks!
BestRegards
