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Commit f0a91b3c authored by Steven Rostedt (Red Hat)'s avatar Steven Rostedt (Red Hat) Committed by Steven Rostedt
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irq/tracing: Export enums in tracepoints to user space 

The enums used by the softirq mapping is what is shown in the output
of the __print_symbolic() and not their values, that are needed
to map them to their strings. Export them to userspace with the
TRACE_DEFINE_ENUM() macro so that user space tools can map the enums
with their values.

Link: http://lkml.kernel.org/r/20150403013802.220157513@goodmis.org



Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Reviewed-by: default avatarMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: default avatarMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 5511b9a4

include/trace/events/irq.h

+27 −12
Original line number Diff line number Diff line
@@ -9,19 +9,34 @@ 
struct irqaction;

struct softirq_action;



#define softirq_name(sirq) { sirq##_SOFTIRQ, #sirq }

#define SOFTIRQ_NAME_LIST				\

			 softirq_name(HI)		\

			 softirq_name(TIMER)		\

			 softirq_name(NET_TX)		\

			 softirq_name(NET_RX)		\

			 softirq_name(BLOCK)		\

			 softirq_name(BLOCK_IOPOLL)	\

			 softirq_name(TASKLET)		\

			 softirq_name(SCHED)		\

			 softirq_name(HRTIMER)		\

			 softirq_name_end(RCU)



#undef softirq_name

#undef softirq_name_end



#define softirq_name(sirq) TRACE_DEFINE_ENUM(sirq##_SOFTIRQ);

#define softirq_name_end(sirq)  TRACE_DEFINE_ENUM(sirq##_SOFTIRQ);



SOFTIRQ_NAME_LIST



#undef softirq_name

#undef softirq_name_end



#define softirq_name(sirq) { sirq##_SOFTIRQ, #sirq },

#define softirq_name_end(sirq) { sirq##_SOFTIRQ, #sirq }



#define show_softirq_name(val)				\

	__print_symbolic(val,				\

			 softirq_name(HI),		\

			 softirq_name(TIMER),		\

			 softirq_name(NET_TX),		\

			 softirq_name(NET_RX),		\

			 softirq_name(BLOCK),		\

			 softirq_name(BLOCK_IOPOLL),	\

			 softirq_name(TASKLET),		\

			 softirq_name(SCHED),		\

			 softirq_name(HRTIMER),		\

			 softirq_name(RCU))

	__print_symbolic(val, SOFTIRQ_NAME_LIST)



/**

 * irq_handler_entry - called immediately before the irq action handler