perf tools: Add code to support PERF_SAMPLE_BRANCH_STACK
This patch adds:
- ability to parse samples with PERF_SAMPLE_BRANCH_STACK
- sort on branches (dso_from, symbol_from, dso_to, symbol_to, mispredict)
- build histograms on branches
Signed-off-by: Roberto Agostino Vitillo <ravitillo@lbl.gov>
Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: peterz@infradead.org
Cc: acme@redhat.com
Cc: robert.richter@amd.com
Cc: ming.m.lin@intel.com
Cc: andi@firstfloor.org
Cc: asharma@fb.com
Cc: vweaver1@eecs.utk.edu
Cc: khandual@linux.vnet.ibm.com
Cc: dsahern@gmail.com
Link: http://lkml.kernel.org/r/1328826068-11713-12-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index c8d9017..7a5434c 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -73,6 +73,10 @@
struct ip_callchain *chain,
struct symbol **parent);
+struct branch_info *machine__resolve_bstack(struct machine *self,
+ struct thread *thread,
+ struct branch_stack *bs);
+
bool perf_session__has_traces(struct perf_session *self, const char *msg);
void mem_bswap_64(void *src, int byte_size);