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authorAdrian Hunter <adrian.hunter@intel.com>2014-07-22 09:17:23 -0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-07-23 10:25:40 -0400
commit1f625b0b3dd641b74ba21640a1fea19a3dd893a2 (patch)
treeb451ba6761307f540996dec29d051b2f48bfc4f1
parent288be943b5024729cd6809b61b62f727960178f3 (diff)
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>
-rw-r--r--tools/perf/util/header.c41
-rw-r--r--tools/perf/util/header.h2
2 files changed, 43 insertions, 0 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 893f8e2df928..a588a3eb5753 100644
--- 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,
200 return write_padded(fd, name, name_len + 1, len); 200 return write_padded(fd, name, name_len + 1, len);
201} 201}
202 202
203static int __dsos__hit_all(struct list_head *head)
204{
205 struct dso *pos;
206
207 list_for_each_entry(pos, head, node)
208 pos->hit = true;
209
210 return 0;
211}
212
213static int machine__hit_all_dsos(struct machine *machine)
214{
215 int err;
216
217 err = __dsos__hit_all(&machine->kernel_dsos);
218 if (err)
219 return err;
220
221 return __dsos__hit_all(&machine->user_dsos);
222}
223
224int dsos__hit_all(struct perf_session *session)
225{
226 struct rb_node *nd;
227 int err;
228
229 err = machine__hit_all_dsos(&session->machines.host);
230 if (err)
231 return err;
232
233 for (nd = rb_first(&session->machines.guests); nd; nd = rb_next(nd)) {
234 struct machine *pos = rb_entry(nd, struct machine, rb_node);
235
236 err = machine__hit_all_dsos(pos);
237 if (err)
238 return err;
239 }
240
241 return 0;
242}
243
203static int __dsos__write_buildid_table(struct list_head *head, 244static int __dsos__write_buildid_table(struct list_head *head,
204 struct machine *machine, 245 struct machine *machine,
205 pid_t pid, u16 misc, int fd) 246 pid_t pid, u16 misc, int fd)
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index d08cfe499404..8f5cbaea64a5 100644
--- 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,
151 struct perf_session *session); 151 struct perf_session *session);
152bool is_perf_magic(u64 magic); 152bool is_perf_magic(u64 magic);
153 153
154int dsos__hit_all(struct perf_session *session);
155
154/* 156/*
155 * arch specific callback 157 * arch specific callback
156 */ 158 */