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tracing/events: Add ftrace_event_call param to define_fields() 

This parameter is needed by syscall events to add define_fields()
handler.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4A8BAF90.6060801@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Li Zefan 2009-08-19 15:53:52 +08:00 committed by Ingo Molnar
parent 10a5b66f62
commit 14be96c971
4 changed files with 5 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/ftrace_event.h
View File

@ -118,7 +118,7 @@ struct ftrace_event_call {
int (*raw_init)(void);
int (*show_format)(struct ftrace_event_call *call,
struct trace_seq *s);
int (*define_fields)(void);
int (*define_fields)(struct ftrace_event_call *);
struct list_head fields;
int filter_active;
struct event_filter *filter;

3
include/trace/ftrace.h
View File

@ -294,10 +294,9 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \
#undef TRACE_EVENT
#define TRACE_EVENT(call, proto, args, tstruct, func, print) \
int \
ftrace_define_fields_##call(void) \
ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
{ \
struct ftrace_raw_##call field; \
struct ftrace_event_call *event_call = &event_##call; \
int ret; \
\
__common_field(int, type, 1); \

2
kernel/trace/trace_events.c
View File

@ -941,7 +941,7 @@ event_create_dir(struct ftrace_event_call *call, struct dentry *d_events,
id);
if (call->define_fields) {
ret = call->define_fields();
ret = call->define_fields(call);
if (ret < 0) {
pr_warning("Could not initialize trace point"
" events/%s\n", call->name);

5
kernel/trace/trace_export.c
View File

@ -119,7 +119,7 @@ ftrace_format_##call(struct ftrace_event_call *unused, \
#undef TRACE_EVENT_FORMAT
#define TRACE_EVENT_FORMAT(call, proto, args, fmt, tstruct, tpfmt) \
int ftrace_define_fields_##call(void); \
int ftrace_define_fields_##call(struct ftrace_event_call *event_call); \
static int ftrace_raw_init_event_##call(void); \
\
struct ftrace_event_call __used \
@ -184,9 +184,8 @@ __attribute__((section("_ftrace_events"))) event_##call = { \
#undef TRACE_EVENT_FORMAT
#define TRACE_EVENT_FORMAT(call, proto, args, fmt, tstruct, tpfmt) \
int \
ftrace_define_fields_##call(void) \
ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
{ \
struct ftrace_event_call *event_call = &event_##call; \
struct args field; \
int ret; \
\