tracing: define TRACE_DEFINE_SIZEOF() macro to map sizeof's to their values
Perf has a problem that if sizeof() macros are used within TRACE_EVENT()
macro's they end up in userspace as "sizeof(kernel structure)" which
cannot properly be parsed. Add a macro which can forward this data
through the eval_map for userspace utilization.
Link: http://lkml.kernel.org/r/20170531215653.3240-10-jeremy.linton@arm.com
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index f7b0f55..a26ffbe 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -88,6 +88,7 @@
#define PARAMS(args...) args
#define TRACE_DEFINE_ENUM(x)
+#define TRACE_DEFINE_SIZEOF(x)
#endif /* _LINUX_TRACEPOINT_H */