Commit 1f625b0b authored by Adrian Hunter's avatar Adrian Hunter Committed by Arnaldo Carvalho de Melo
Browse files

perf tools: Add dsos__hit_all() 



Add ability to mark all dsos as hit.

This is needed in the case of Instruction Tracing.  It takes so long to
decode an Instruction Trace that it is not worth doing just to determine
which dsos are hit.  A later patch takes this into use.

Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1406035081-14301-15-git-send-email-adrian.hunter@intel.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 288be943

tools/perf/util/header.c

+41 −0
Original line number Diff line number Diff line
@@ -200,6 +200,47 @@ static int write_buildid(const char *name, size_t name_len, u8 *build_id, 
	return write_padded(fd, name, name_len + 1, len);

}



static int __dsos__hit_all(struct list_head *head)

{

	struct dso *pos;



	list_for_each_entry(pos, head, node)

		pos->hit = true;



	return 0;

}



static int machine__hit_all_dsos(struct machine *machine)

{

	int err;



	err = __dsos__hit_all(&machine->kernel_dsos);

	if (err)

		return err;



	return __dsos__hit_all(&machine->user_dsos);

}



int dsos__hit_all(struct perf_session *session)

{

	struct rb_node *nd;

	int err;



	err = machine__hit_all_dsos(&session->machines.host);

	if (err)

		return err;



	for (nd = rb_first(&session->machines.guests); nd; nd = rb_next(nd)) {

		struct machine *pos = rb_entry(nd, struct machine, rb_node);



		err = machine__hit_all_dsos(pos);

		if (err)

			return err;

	}



	return 0;

}



static int __dsos__write_buildid_table(struct list_head *head,

				       struct machine *machine,

				       pid_t pid, u16 misc, int fd)

tools/perf/util/header.h

+2 −0
Original line number Diff line number Diff line
@@ -151,6 +151,8 @@ int perf_event__process_build_id(struct perf_tool *tool, 
				 struct perf_session *session);

bool is_perf_magic(u64 magic);



int dsos__hit_all(struct perf_session *session);



/*

 * arch specific callback

 */

CRA Git | Maintained and supported by SUSTech CRA and CCSE