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tools lib traceevent: Change pevent_parse_format to include pevent handle

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Changing the pevent_parse_format interface to include the pevent handle.

The goal is to always use pevent object when dealing with traceevent
library. The reason is that we might need additional processing (like
plugins), which is not possible otherwise.

Patches follow to make this happen completely.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386076182-14484-6-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2013-12-03 14:09:19 +01:00 committed by Arnaldo Carvalho de Melo
parent 91a058ad38
commit 71ad9583ff
3 changed files with 39 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
tools/lib/traceevent/event-parse.c
View File

@ -5121,8 +5121,38 @@ enum pevent_errno __pevent_parse_format(struct event_format **eventp,
return ret;
}
static enum pevent_errno
__pevent_parse_event(struct pevent *pevent,
struct event_format **eventp,
const char *buf, unsigned long size,
const char *sys)
{
int ret = __pevent_parse_format(eventp, pevent, buf, size, sys);
struct event_format *event = *eventp;
if (event == NULL)
return ret;
if (pevent && add_event(pevent, event)) {
ret = PEVENT_ERRNO__MEM_ALLOC_FAILED;
goto event_add_failed;
}
#define PRINT_ARGS 0
if (PRINT_ARGS && event->print_fmt.args)
print_args(event->print_fmt.args);
return 0;
event_add_failed:
pevent_free_format(event);
return ret;
}
/**
* pevent_parse_format - parse the event format
* @pevent: the handle to the pevent
* @eventp: returned format
* @buf: the buffer storing the event format string
* @size: the size of @buf
* @sys: the system the event belongs to
@ -5134,10 +5164,12 @@ enum pevent_errno __pevent_parse_format(struct event_format **eventp,
*
* /sys/kernel/debug/tracing/events/.../.../format
*/
enum pevent_errno pevent_parse_format(struct event_format **eventp, const char *buf,
enum pevent_errno pevent_parse_format(struct pevent *pevent,
struct event_format **eventp,
const char *buf,
unsigned long size, const char *sys)
{
return __pevent_parse_format(eventp, NULL, buf, size, sys);
return __pevent_parse_event(pevent, eventp, buf, size, sys);
}
/**
@ -5158,25 +5190,7 @@ enum pevent_errno pevent_parse_event(struct pevent *pevent, const char *buf,
unsigned long size, const char *sys)
{
struct event_format *event = NULL;
int ret = __pevent_parse_format(&event, pevent, buf, size, sys);
if (event == NULL)
return ret;
if (add_event(pevent, event)) {
ret = PEVENT_ERRNO__MEM_ALLOC_FAILED;
goto event_add_failed;
}
#define PRINT_ARGS 0
if (PRINT_ARGS && event->print_fmt.args)
print_args(event->print_fmt.args);
return 0;
event_add_failed:
pevent_free_format(event);
return ret;
return __pevent_parse_event(pevent, &event, buf, size, sys);
}
#undef _PE

4
tools/lib/traceevent/event-parse.h
View File

@ -562,7 +562,9 @@ int pevent_parse_header_page(struct pevent *pevent, char *buf, unsigned long siz
enum pevent_errno pevent_parse_event(struct pevent *pevent, const char *buf,
unsigned long size, const char *sys);
enum pevent_errno pevent_parse_format(struct event_format **eventp, const char *buf,
enum pevent_errno pevent_parse_format(struct pevent *pevent,
struct event_format **eventp,
const char *buf,
unsigned long size, const char *sys);
void pevent_free_format(struct event_format *event);

2
tools/perf/util/evsel.c
View File

@ -210,7 +210,7 @@ struct event_format *event_format__new(const char *sys, const char *name)
size += n;
} while (n > 0);
pevent_parse_format(&format, bf, size, sys);
pevent_parse_format(NULL, &format, bf, size, sys);
out_free_bf:
free(bf);