From: Tal Shorer <tal.shorer@gmail.com>
To: rostedt@goodmis.org, mingo@redhat.com
Cc: linux-kernel@vger.kernel.org, Tal Shorer <tal.shorer@gmail.com>
Subject: [Patch RFC 1/2] tracing: allow disabling compilation of specific trace systems
Date: Sun, 14 Jun 2015 00:00:11 +0300 [thread overview]
Message-ID: <1434229212-3168-2-git-send-email-tal.shorer@gmail.com> (raw)
In-Reply-To: <1434229212-3168-1-git-send-email-tal.shorer@gmail.com>
Allow a trace events header file to disable compilation of its
trace events by defining the preprocessor macro NOTRACE.
This could be done, for example, according to a Kconfig option.
Signed-off-by: Tal Shorer <tal.shorer@gmail.com>
---
include/linux/tracepoint.h | 6 +++---
include/trace/define_trace.h | 2 +-
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index a5f7f3e..c869f84 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -111,7 +111,7 @@ extern void syscall_unregfunc(void);
#define TP_ARGS(args...) args
#define TP_CONDITION(args...) args
-#ifdef CONFIG_TRACEPOINTS
+#if defined(CONFIG_TRACEPOINTS) && !defined(NOTRACE)
/*
* it_func[0] is never NULL because there is at least one element in the array
@@ -234,7 +234,7 @@ extern void syscall_unregfunc(void);
#define EXPORT_TRACEPOINT_SYMBOL(name) \
EXPORT_SYMBOL(__tracepoint_##name)
-#else /* !CONFIG_TRACEPOINTS */
+#else /* !(defined(CONFIG_TRACEPOINTS) && !defined(NOTRACE)) */
#define __DECLARE_TRACE(name, proto, args, cond, data_proto, data_args) \
static inline void trace_##name(proto) \
{ } \
@@ -266,7 +266,7 @@ extern void syscall_unregfunc(void);
#define EXPORT_TRACEPOINT_SYMBOL_GPL(name)
#define EXPORT_TRACEPOINT_SYMBOL(name)
-#endif /* CONFIG_TRACEPOINTS */
+#endif /* defined(CONFIG_TRACEPOINTS) && !defined(NOTRACE) */
#ifdef CONFIG_TRACING
/**
diff --git a/include/trace/define_trace.h b/include/trace/define_trace.h
index 02e1003..e847fd7 100644
--- a/include/trace/define_trace.h
+++ b/include/trace/define_trace.h
@@ -86,7 +86,7 @@
#undef DECLARE_TRACE
#define DECLARE_TRACE(name, proto, args)
-#ifdef CONFIG_EVENT_TRACING
+#if defined(CONFIG_EVENT_TRACING) && !defined(NOTRACE)
#include <trace/ftrace.h>
#endif
--
2.2.2
next prev parent reply other threads:[~2015-06-13 21:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-13 21:00 [Patch RFC 0/2] tracing: allow disabling compilation of specific trace systems Tal Shorer
2015-06-13 21:00 ` Tal Shorer [this message]
2015-06-13 21:00 ` [Patch RFC 2/2] tracing: gpio: add Kconfig option for enabling/disabling trace events Tal Shorer
-- strict thread matches above, loose matches on Subject: below --
2015-06-20 20:21 [Patch RFC 0/2] tracing: allow disabling compilation of specific trace systems Tal Shorer
2015-06-20 20:21 ` [Patch RFC 1/2] " Tal Shorer
2015-07-13 18:34 ` Steven Rostedt
2015-07-13 21:38 ` Tal Shorer
2015-06-08 19:04 [Patch RFC 0/2] " Tal Shorer
2015-06-08 19:04 ` [Patch RFC 1/2] " Tal Shorer
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