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From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Namhyung Kim <namhyung@kernel.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Dave Hansen <dave@sr71.net>
Subject: [RFC][PATCH 10/17 v2] x86/tlb/trace: Export enums in used by tlb_flush tracepoint
Date: Wed, 01 Apr 2015 21:56:58 -0400	[thread overview]
Message-ID: <20150402020941.597759903@goodmis.org> (raw)
In-Reply-To: <20150402015648.249824760@goodmis.org>

[-- Attachment #1: 0010-x86-tlb-trace-Export-enums-in-used-by-tlb_flush-trac.patch --]
[-- Type: text/plain, Size: 1645 bytes --]

From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>

Have the enums used in __print_symbolic() by the trace_tlb_flush()
tracepoint exported to userpace such that they can be parsed by
userspace tools.

Cc: Dave Hansen <dave@sr71.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/trace/events/tlb.h | 30 +++++++++++++++++++++++++-----
 1 file changed, 25 insertions(+), 5 deletions(-)

diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h
index 0e7635765153..4250f364a6ca 100644
--- a/include/trace/events/tlb.h
+++ b/include/trace/events/tlb.h
@@ -7,11 +7,31 @@
 #include <linux/mm_types.h>
 #include <linux/tracepoint.h>
 
-#define TLB_FLUSH_REASON	\
-	{ TLB_FLUSH_ON_TASK_SWITCH,	"flush on task switch" },	\
-	{ TLB_REMOTE_SHOOTDOWN,		"remote shootdown" },		\
-	{ TLB_LOCAL_SHOOTDOWN,		"local shootdown" },		\
-	{ TLB_LOCAL_MM_SHOOTDOWN,	"local mm shootdown" }
+#define TLB_FLUSH_REASON						\
+	EM(  TLB_FLUSH_ON_TASK_SWITCH,	"flush on task switch" )	\
+	EM(  TLB_REMOTE_SHOOTDOWN,	"remote shootdown" )		\
+	EM(  TLB_LOCAL_SHOOTDOWN,	"local shootdown" )		\
+	EMe( TLB_LOCAL_MM_SHOOTDOWN,	"local mm shootdown" )
+
+/*
+ * First define the enums in TLB_FLUSH_REASON to be exported to userspace
+ * via TRACE_DEFINE_ENUM().
+ */
+#undef EM
+#undef EMe
+#define EM(a,b)		TRACE_DEFINE_ENUM(a);
+#define EMe(a,b)	TRACE_DEFINE_ENUM(a);
+
+TLB_FLUSH_REASON
+
+/*
+ * Now redefine the EM() and EMe() macros to map the enums to the strings
+ * that will be printed in the output.
+ */
+#undef EM
+#undef EMe
+#define EM(a,b)		{ a, b },
+#define EMe(a,b)	{ a, b }
 
 TRACE_EVENT_CONDITION(tlb_flush,
 
-- 
2.1.4



  parent reply	other threads:[~2015-04-02  2:12 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-02  1:56 [RFC][PATCH 00/17 v2] tracing: Use TRACE_DEFINE_ENUM() to show enum values Steven Rostedt
2015-04-02  1:56 ` [RFC][PATCH 01/17 v2] tracing: Add TRACE_SYSTEM_VAR to intel-sst Steven Rostedt
     [not found]   ` <CADRr18NOdH3rqLeK3aJBaQ5ZfQSPDYiLdkDNshzSvUwctR8EEQ@mail.gmail.com>
2015-04-02 13:32     ` Steven Rostedt
2015-04-02 13:33       ` Steven Rostedt
2015-04-02 13:40         ` Mark Brown
2015-04-02 13:49           ` Steven Rostedt
2015-04-02 13:59             ` Mark Brown
2015-04-02 14:03               ` Steven Rostedt
2015-04-02 14:28                 ` Mark Brown
2015-04-02  1:56 ` [RFC][PATCH 02/17 v2] tracing: Add TRACE_SYSTEM_VAR to kvm-s390 Steven Rostedt
2015-04-02  9:15   ` Cornelia Huck
2015-04-02  1:56 ` [RFC][PATCH 03/17 v2] tracing: Add TRACE_SYSTEM_VAR to xhci-hcd Steven Rostedt
2015-04-02  1:56 ` [RFC][PATCH 04/17 v2] tracing: Give system name a pointer Steven Rostedt
2015-04-02  1:56 ` [RFC][PATCH 05/17 v2] tracing: Update trace-event-sample with TRACE_SYSTEM_VAR documentation Steven Rostedt
2015-04-02  1:56 ` [RFC][PATCH 06/17 v2] tracing: Add TRACE_DEFINE_ENUM() macro to map enums to their values Steven Rostedt
2015-04-02  7:47   ` Namhyung Kim
2015-04-02 13:27     ` Steven Rostedt
2015-04-02 13:57       ` [RFC][PATCH 06/17 v3] " Steven Rostedt
2015-04-02 16:25         ` Steven Rostedt
2015-04-02  1:56 ` [RFC][PATCH 07/17 v2] tracing: Allow for modules to export their trace enums as well Steven Rostedt
2015-04-02  1:56 ` [RFC][PATCH 08/17 v2] tracing/samples: Update the trace-event-sample.h with TRACE_DEFINE_ENUM() Steven Rostedt
2015-04-02  1:56 ` [RFC][PATCH 09/17 v2] tracing: Show the mapped enums in enum_map file Steven Rostedt
2015-04-02  2:58   ` Steven Rostedt
2015-04-02  1:56 ` Steven Rostedt [this message]
2015-04-02  1:56 ` [RFC][PATCH 11/17 v2] net/9p/tracing: Export enums in tracepoints to userspace Steven Rostedt
2015-04-02  1:57 ` [RFC][PATCH 12/17 v2] f2fs: Export the enums in the " Steven Rostedt
2015-04-02  1:57 ` [RFC][PATCH 13/17 v2] irq/tracing: Export enums in tracepoints to user space Steven Rostedt
2015-04-02  1:57 ` [RFC][PATCH 14/17 v2] mm: tracing: " Steven Rostedt
2015-04-02  1:57 ` [RFC][PATCH 15/17 v2] SUNRPC: " Steven Rostedt
2015-04-02  1:57 ` [RFC][PATCH 16/17 v2] v4l: Export enums used by " Steven Rostedt
2015-04-02  1:57 ` [RFC][PATCH 17/17 v2] writeback: Export enums used by tracepoint " Steven Rostedt
2015-04-07  0:44 ` [RFC][PATCH 00/17 v2] tracing: Use TRACE_DEFINE_ENUM() to show enum values Masami Hiramatsu

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