Commit 75051724 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

perf report: Split out event processing helpers 



- Introduce per event helper functions

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <new-submission>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent d80d338d

Documentation/perf_counter/builtin-report.c

+118 −93
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ struct ip_event { 
	__u64 ip;

	__u32 pid, tid;

};



struct mmap_event {

	struct perf_event_header header;

	__u32 pid, tid;
@@ -58,6 +59,7 @@ struct mmap_event { 
	__u64 pgoff;

	char filename[PATH_MAX];

};



struct comm_event {

	struct perf_event_header header;

	__u32 pid, tid;
@@ -760,9 +762,8 @@ static void register_idle_thread(void) 
static unsigned long total = 0, total_mmap = 0, total_comm = 0, total_unknown = 0;



static int

process_event(event_t *event, unsigned long offset, unsigned long head)

process_overflow_event(event_t *event, unsigned long offset, unsigned long head)

{

	if (event->header.misc & PERF_EVENT_MISC_OVERFLOW) {

	char level;

	int show = 0;

	struct dso *dso = NULL;
@@ -830,8 +831,13 @@ process_event(event_t *event, unsigned long offset, unsigned long head) 
		}

	}

	total++;

	} else switch (event->header.type) {

	case PERF_EVENT_MMAP: {



	return 0;

}



static int

process_mmap_event(event_t *event, unsigned long offset, unsigned long head)

{

	struct thread *thread = threads__findnew(event->mmap.pid);

	struct map *map = map__new(&event->mmap);
@@ -844,15 +850,19 @@ process_event(event_t *event, unsigned long offset, unsigned long head) 
		event->mmap.filename);



	if (thread == NULL || map == NULL) {

			if (verbose)

				fprintf(stderr, "problem processing PERF_EVENT_MMAP, skipping event.\n");

		dprintf("problem processing PERF_EVENT_MMAP, skipping event.\n");

		return -1;

	}



	thread__insert_map(thread, map);

	total_mmap++;

		break;



	return 0;

}

	case PERF_EVENT_COMM: {



static int

process_comm_event(event_t *event, unsigned long offset, unsigned long head)

{

	struct thread *thread = threads__findnew(event->comm.pid);



	dprintf("%p [%p]: PERF_EVENT_COMM: %s:%d\n",
@@ -862,12 +872,27 @@ process_event(event_t *event, unsigned long offset, unsigned long head) 


	if (thread == NULL ||

	    thread__set_comm(thread, event->comm.comm)) {

			fprintf(stderr, "problem processing PERF_EVENT_COMM, skipping event.\n");

		dprintf("problem processing PERF_EVENT_COMM, skipping event.\n");

		return -1;

	}

	total_comm++;

		break;



	return 0;

}



static int

process_event(event_t *event, unsigned long offset, unsigned long head)

{

	if (event->header.misc & PERF_EVENT_MISC_OVERFLOW)

		return process_overflow_event(event, offset, head);



	switch (event->header.type) {

	case PERF_EVENT_MMAP:

		return process_mmap_event(event, offset, head);



	case PERF_EVENT_COMM:

		return process_comm_event(event, offset, head);



	default:

		return -1;

	}
@@ -877,13 +902,13 @@ process_event(event_t *event, unsigned long offset, unsigned long head) 


static int __cmd_report(void)

{

	int ret, rc = EXIT_FAILURE;

	unsigned long offset = 0;

	unsigned long head = 0;

	struct stat stat;

	char *buf;

	event_t *event;

	int ret, rc = EXIT_FAILURE;

	uint32_t size;

	char *buf;



	register_idle_thread();

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