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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>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
	Eric Van Hensbergen <ericvh@gmail.com>
Subject: [RFC][PATCH 11/17 v2] net/9p/tracing: Export enums in tracepoints to userspace
Date: Wed, 01 Apr 2015 21:56:59 -0400	[thread overview]
Message-ID: <20150402020941.744303583@goodmis.org> (raw)
In-Reply-To: <20150402015648.249824760@goodmis.org>

[-- Attachment #1: 0011-net-9p-tracing-Export-enums-in-tracepoints-to-usersp.patch --]
[-- Type: text/plain, Size: 6698 bytes --]

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

The tracepoints in the 9p code use a lot of enums for the __print_symbolic()
function. These enums are shown in the tracepoint format files, and user
space tools such as trace-cmd does not have the information to parse it.
Add helper macros to export the enums with TRACE_DEFINE_ENUM().

Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/trace/events/9p.h | 157 ++++++++++++++++++++++++++--------------------
 1 file changed, 88 insertions(+), 69 deletions(-)

diff --git a/include/trace/events/9p.h b/include/trace/events/9p.h
index a0666362c111..633ee9ee9778 100644
--- a/include/trace/events/9p.h
+++ b/include/trace/events/9p.h
@@ -6,76 +6,95 @@
 
 #include <linux/tracepoint.h>
 
+#define P9_MSG_T							\
+		EM( P9_TLERROR,		"P9_TLERROR" )			\
+		EM( P9_RLERROR,		"P9_RLERROR" )			\
+		EM( P9_TSTATFS,		"P9_TSTATFS" )			\
+		EM( P9_RSTATFS,		"P9_RSTATFS" )			\
+		EM( P9_TLOPEN,		"P9_TLOPEN" )			\
+		EM( P9_RLOPEN,		"P9_RLOPEN" )			\
+		EM( P9_TLCREATE,	"P9_TLCREATE" )			\
+		EM( P9_RLCREATE,	"P9_RLCREATE" )			\
+		EM( P9_TSYMLINK,	"P9_TSYMLINK" )			\
+		EM( P9_RSYMLINK,	"P9_RSYMLINK" )			\
+		EM( P9_TMKNOD,		"P9_TMKNOD" )			\
+		EM( P9_RMKNOD,		"P9_RMKNOD" )			\
+		EM( P9_TRENAME,		"P9_TRENAME" )			\
+		EM( P9_RRENAME,		"P9_RRENAME" )			\
+		EM( P9_TREADLINK,	"P9_TREADLINK" )		\
+		EM( P9_RREADLINK,	"P9_RREADLINK" )		\
+		EM( P9_TGETATTR,	"P9_TGETATTR" )			\
+		EM( P9_RGETATTR,	"P9_RGETATTR" )			\
+		EM( P9_TSETATTR,	"P9_TSETATTR" )			\
+		EM( P9_RSETATTR,	"P9_RSETATTR" )			\
+		EM( P9_TXATTRWALK,	"P9_TXATTRWALK" )		\
+		EM( P9_RXATTRWALK,	"P9_RXATTRWALK" )		\
+		EM( P9_TXATTRCREATE,	"P9_TXATTRCREATE" )		\
+		EM( P9_RXATTRCREATE,	"P9_RXATTRCREATE" )		\
+		EM( P9_TREADDIR,	"P9_TREADDIR" )			\
+		EM( P9_RREADDIR,	"P9_RREADDIR" )			\
+		EM( P9_TFSYNC,		"P9_TFSYNC" )			\
+		EM( P9_RFSYNC,		"P9_RFSYNC" )			\
+		EM( P9_TLOCK,		"P9_TLOCK" )			\
+		EM( P9_RLOCK,		"P9_RLOCK" )			\
+		EM( P9_TGETLOCK,	"P9_TGETLOCK" )			\
+		EM( P9_RGETLOCK,	"P9_RGETLOCK" )			\
+		EM( P9_TLINK,		"P9_TLINK" )			\
+		EM( P9_RLINK,		"P9_RLINK" )			\
+		EM( P9_TMKDIR,		"P9_TMKDIR" )			\
+		EM( P9_RMKDIR,		"P9_RMKDIR" )			\
+		EM( P9_TRENAMEAT,	"P9_TRENAMEAT" )		\
+		EM( P9_RRENAMEAT,	"P9_RRENAMEAT" )		\
+		EM( P9_TUNLINKAT,	"P9_TUNLINKAT" )		\
+		EM( P9_RUNLINKAT,	"P9_RUNLINKAT" )		\
+		EM( P9_TVERSION,	"P9_TVERSION" )			\
+		EM( P9_RVERSION,	"P9_RVERSION" )			\
+		EM( P9_TAUTH,		"P9_TAUTH" )			\
+		EM( P9_RAUTH,		"P9_RAUTH" )			\
+		EM( P9_TATTACH,		"P9_TATTACH" )			\
+		EM( P9_RATTACH,		"P9_RATTACH" )			\
+		EM( P9_TERROR,		"P9_TERROR" )			\
+		EM( P9_RERROR,		"P9_RERROR" )			\
+		EM( P9_TFLUSH,		"P9_TFLUSH" )			\
+		EM( P9_RFLUSH,		"P9_RFLUSH" )			\
+		EM( P9_TWALK,		"P9_TWALK" )			\
+		EM( P9_RWALK,		"P9_RWALK" )			\
+		EM( P9_TOPEN,		"P9_TOPEN" )			\
+		EM( P9_ROPEN,		"P9_ROPEN" )			\
+		EM( P9_TCREATE,		"P9_TCREATE" )			\
+		EM( P9_RCREATE,		"P9_RCREATE" )			\
+		EM( P9_TREAD,		"P9_TREAD" )			\
+		EM( P9_RREAD,		"P9_RREAD" )			\
+		EM( P9_TWRITE,		"P9_TWRITE" )			\
+		EM( P9_RWRITE,		"P9_RWRITE" )			\
+		EM( P9_TCLUNK,		"P9_TCLUNK" )			\
+		EM( P9_RCLUNK,		"P9_RCLUNK" )			\
+		EM( P9_TREMOVE,		"P9_TREMOVE" )			\
+		EM( P9_RREMOVE,		"P9_RREMOVE" )			\
+		EM( P9_TSTAT,		"P9_TSTAT" )			\
+		EM( P9_RSTAT,		"P9_RSTAT" )			\
+		EM( P9_TWSTAT,		"P9_TWSTAT" )			\
+		EMe(P9_RWSTAT,		"P9_RWSTAT" )
+
+/* Define EM() to export the enums 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);
+
+P9_MSG_T
+
+/*
+ * 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 }
+
 #define show_9p_op(type)						\
-	__print_symbolic(type,						\
-			 { P9_TLERROR,		"P9_TLERROR" },		\
-			 { P9_RLERROR,		"P9_RLERROR" },		\
-			 { P9_TSTATFS,		"P9_TSTATFS" },		\
-			 { P9_RSTATFS,		"P9_RSTATFS" },		\
-			 { P9_TLOPEN,		"P9_TLOPEN" },		\
-			 { P9_RLOPEN,		"P9_RLOPEN" },		\
-			 { P9_TLCREATE,		"P9_TLCREATE" },	\
-			 { P9_RLCREATE,		"P9_RLCREATE" },	\
-			 { P9_TSYMLINK,		"P9_TSYMLINK" },	\
-			 { P9_RSYMLINK,		"P9_RSYMLINK" },	\
-			 { P9_TMKNOD,		"P9_TMKNOD" },		\
-			 { P9_RMKNOD,		"P9_RMKNOD" },		\
-			 { P9_TRENAME,		"P9_TRENAME" },		\
-			 { P9_RRENAME,		"P9_RRENAME" },		\
-			 { P9_TREADLINK,	"P9_TREADLINK" },	\
-			 { P9_RREADLINK,	"P9_RREADLINK" },	\
-			 { P9_TGETATTR,		"P9_TGETATTR" },	\
-			 { P9_RGETATTR,		"P9_RGETATTR" },	\
-			 { P9_TSETATTR,		"P9_TSETATTR" },	\
-			 { P9_RSETATTR,		"P9_RSETATTR" },	\
-			 { P9_TXATTRWALK,	"P9_TXATTRWALK" },	\
-			 { P9_RXATTRWALK,	"P9_RXATTRWALK" },	\
-			 { P9_TXATTRCREATE,	"P9_TXATTRCREATE" },	\
-			 { P9_RXATTRCREATE,	"P9_RXATTRCREATE" },	\
-			 { P9_TREADDIR,		"P9_TREADDIR" },	\
-			 { P9_RREADDIR,		"P9_RREADDIR" },	\
-			 { P9_TFSYNC,		"P9_TFSYNC" },		\
-			 { P9_RFSYNC,		"P9_RFSYNC" },		\
-			 { P9_TLOCK,		"P9_TLOCK" },		\
-			 { P9_RLOCK,		"P9_RLOCK" },		\
-			 { P9_TGETLOCK,		"P9_TGETLOCK" },	\
-			 { P9_RGETLOCK,		"P9_RGETLOCK" },	\
-			 { P9_TLINK,		"P9_TLINK" },		\
-			 { P9_RLINK,		"P9_RLINK" },		\
-			 { P9_TMKDIR,		"P9_TMKDIR" },		\
-			 { P9_RMKDIR,		"P9_RMKDIR" },		\
-			 { P9_TRENAMEAT,	"P9_TRENAMEAT" },	\
-			 { P9_RRENAMEAT,	"P9_RRENAMEAT" },	\
-			 { P9_TUNLINKAT,	"P9_TUNLINKAT" },	\
-			 { P9_RUNLINKAT,	"P9_RUNLINKAT" },	\
-			 { P9_TVERSION,		"P9_TVERSION" },	\
-			 { P9_RVERSION,		"P9_RVERSION" },	\
-			 { P9_TAUTH,		"P9_TAUTH" },		\
-			 { P9_RAUTH,		"P9_RAUTH" },		\
-			 { P9_TATTACH,		"P9_TATTACH" },		\
-			 { P9_RATTACH,		"P9_RATTACH" },		\
-			 { P9_TERROR,		"P9_TERROR" },		\
-			 { P9_RERROR,		"P9_RERROR" },		\
-			 { P9_TFLUSH,		"P9_TFLUSH" },		\
-			 { P9_RFLUSH,		"P9_RFLUSH" },		\
-			 { P9_TWALK,		"P9_TWALK" },		\
-			 { P9_RWALK,		"P9_RWALK" },		\
-			 { P9_TOPEN,		"P9_TOPEN" },		\
-			 { P9_ROPEN,		"P9_ROPEN" },		\
-			 { P9_TCREATE,		"P9_TCREATE" },		\
-			 { P9_RCREATE,		"P9_RCREATE" },		\
-			 { P9_TREAD,		"P9_TREAD" },		\
-			 { P9_RREAD,		"P9_RREAD" },		\
-			 { P9_TWRITE,		"P9_TWRITE" },		\
-			 { P9_RWRITE,		"P9_RWRITE" },		\
-			 { P9_TCLUNK,		"P9_TCLUNK" },		\
-			 { P9_RCLUNK,		"P9_RCLUNK" },		\
-			 { P9_TREMOVE,		"P9_TREMOVE" },		\
-			 { P9_RREMOVE,		"P9_RREMOVE" },		\
-			 { P9_TSTAT,		"P9_TSTAT" },		\
-			 { P9_RSTAT,		"P9_RSTAT" },		\
-			 { P9_TWSTAT,		"P9_TWSTAT" },		\
-			 { P9_RWSTAT,		"P9_RWSTAT" })
+	__print_symbolic(type, P9_MSG_T)
 
 TRACE_EVENT(9p_client_req,
 	    TP_PROTO(struct p9_client *clnt, int8_t type, int tag),
-- 
2.1.4



  parent reply	other threads:[~2015-04-02  2:14 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 ` [RFC][PATCH 10/17 v2] x86/tlb/trace: Export enums in used by tlb_flush tracepoint Steven Rostedt
2015-04-02  1:56 ` Steven Rostedt [this message]
2015-04-02  1:57 ` [RFC][PATCH 12/17 v2] f2fs: Export the enums in the tracepoints to userspace 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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