提交 d0b6e04a 编写于 作者: L Li Zefan 提交者: Ingo Molnar

tracing/events: Move TRACE_SYSTEM outside of include guard

If TRACE_INCLDUE_FILE is defined, <trace/events/TRACE_INCLUDE_FILE.h>
will be included and compiled, otherwise it will be
<trace/events/TRACE_SYSTEM.h>

So TRACE_SYSTEM should be defined outside of #if proctection,
just like TRACE_INCLUDE_FILE.

Imaging this scenario:

 #include <trace/events/foo.h>
    -> TRACE_SYSTEM == foo
 ...
 #include <trace/events/bar.h>
    -> TRACE_SYSTEM == bar
 ...
 #define CREATE_TRACE_POINTS
 #include <trace/events/foo.h>
    -> TRACE_SYSTEM == bar !!!

and then bar.h will be included and compiled.
Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4A5A9CF1.2010007@cn.fujitsu.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
上级 7638d532
#undef TRACE_SYSTEM
#define TRACE_SYSTEM gfs2
#if !defined(_TRACE_GFS2_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_GFS2_H
#include <linux/tracepoint.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM gfs2
#define TRACE_INCLUDE_FILE trace_gfs2
#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/dlmconstants.h>
......@@ -403,5 +402,6 @@ TRACE_EVENT(gfs2_block_alloc,
/* This part must be outside protection */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE trace_gfs2
#include <trace/define_trace.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM block
#if !defined(_TRACE_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_BLOCK_H
......@@ -5,9 +8,6 @@
#include <linux/blkdev.h>
#include <linux/tracepoint.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM block
TRACE_EVENT(block_rq_abort,
TP_PROTO(struct request_queue *q, struct request *rq),
......
#if !defined(_TRACE_EXT4_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_EXT4_H
#undef TRACE_SYSTEM
#define TRACE_SYSTEM ext4
#if !defined(_TRACE_EXT4_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_EXT4_H
#include <linux/writeback.h>
#include "../../../fs/ext4/ext4.h"
#include "../../../fs/ext4/mballoc.h"
......
#undef TRACE_SYSTEM
#define TRACE_SYSTEM irq
#if !defined(_TRACE_IRQ_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_IRQ_H
#include <linux/tracepoint.h>
#include <linux/interrupt.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM irq
#define softirq_name(sirq) { sirq##_SOFTIRQ, #sirq }
#define show_softirq_name(val) \
__print_symbolic(val, \
......
#undef TRACE_SYSTEM
#define TRACE_SYSTEM jbd2
#if !defined(_TRACE_JBD2_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_JBD2_H
#include <linux/jbd2.h>
#include <linux/tracepoint.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM jbd2
TRACE_EVENT(jbd2_checkpoint,
TP_PROTO(journal_t *journal, int result),
......
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kmem
#if !defined(_TRACE_KMEM_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_KMEM_H
#include <linux/types.h>
#include <linux/tracepoint.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kmem
/*
* The order of these masks is important. Matching masks will be seen
* first and the left over flags will end up showing by themselves.
......
#undef TRACE_SYSTEM
#define TRACE_SYSTEM lockdep
#if !defined(_TRACE_LOCKDEP_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_LOCKDEP_H
#include <linux/lockdep.h>
#include <linux/tracepoint.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM lockdep
#ifdef CONFIG_LOCKDEP
TRACE_EVENT(lock_acquire,
......
#undef TRACE_SYSTEM
#define TRACE_SYSTEM sched
#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SCHED_H
#include <linux/sched.h>
#include <linux/tracepoint.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM sched
/*
* Tracepoint for calling kthread_stop, performed to end a kthread:
*/
......
#undef TRACE_SYSTEM
#define TRACE_SYSTEM skb
#if !defined(_TRACE_SKB_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SKB_H
#include <linux/skbuff.h>
#include <linux/tracepoint.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM skb
/*
* Tracepoint for free an sk_buff:
*/
......
#undef TRACE_SYSTEM
#define TRACE_SYSTEM workqueue
#if !defined(_TRACE_WORKQUEUE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_WORKQUEUE_H
......@@ -5,9 +8,6 @@
#include <linux/sched.h>
#include <linux/tracepoint.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM workqueue
TRACE_EVENT(workqueue_insertion,
TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),
......
/*
* Notice that this file is not protected like a normal header.
* We also must allow for rereading of this file. The
*
* || defined(TRACE_HEADER_MULTI_READ)
*
* serves this purpose.
*/
#if !defined(_TRACE_EVENT_SAMPLE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_EVENT_SAMPLE_H
/*
* All trace headers should include tracepoint.h, until we finally
* make it into a standard header.
*/
#include <linux/tracepoint.h>
/*
* If TRACE_SYSTEM is defined, that will be the directory created
* in the ftrace directory under /debugfs/tracing/events/<system>
......@@ -34,10 +17,30 @@
* #define TRACE_INCLUDE_FILE trace-events-sample
*
* As we do an the bottom of this file.
*
* Notice that TRACE_SYSTEM should be defined outside of #if
* protection, just like TRACE_INCLUDE_FILE.
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM sample
/*
* Notice that this file is not protected like a normal header.
* We also must allow for rereading of this file. The
*
* || defined(TRACE_HEADER_MULTI_READ)
*
* serves this purpose.
*/
#if !defined(_TRACE_EVENT_SAMPLE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_EVENT_SAMPLE_H
/*
* All trace headers should include tracepoint.h, until we finally
* make it into a standard header.
*/
#include <linux/tracepoint.h>
/*
* The TRACE_EVENT macro is broken up into 5 parts.
*
......
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