lkml.org 
[lkml]   [2015]   [Apr]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[RFC][PATCH 13/17 v2] irq/tracing: Export enums in tracepoints to user space
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>

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.

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/trace/events/irq.h | 39 +++++++++++++++++++++++++++------------
1 file changed, 27 insertions(+), 12 deletions(-)

diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
index 3608bebd3d9c..ff8f6c091a15 100644
--- a/include/trace/events/irq.h
+++ b/include/trace/events/irq.h
@@ -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
--
2.1.4



\
 
 \ /
  Last update: 2015-04-02 04:41    [W:0.168 / U:0.148 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site