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irq/tracing: Export enums in tracepoints to user space

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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: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat) 2015-03-27 16:31:44 -04:00 committed by Steven Rostedt
parent 5511b9a471
commit f0a91b3caa
1 changed files with 27 additions and 12 deletions
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39
include/trace/events/irq.h
View file

@ -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