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: Adrian 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: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 893f8e2df9285237b26365922adf9b1eaa88a5ec..a588a3eb575320ecb06d28292ee4fe232db1d780 100644 (file)
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -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)

diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index d08cfe49940448170dc5c680dc30ff9256ed7158..8f5cbaea64a5288faba84440722595854c04c044 100644 (file)
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -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
  */