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authorRoberto Agostino Vitillo <ravitillo@lbl.gov>2012-02-09 23:21:01 +0100
committerIngo Molnar <mingo@elte.hu>2012-03-09 08:26:04 +0100
commitb5387528f31d98acedf06e930554b563d87e2383 (patch)
tree0a8fff59cc7d1392d7adfbbc0f9beacc9ca6d20b /tools/perf/perf.h
parentd010b3326cf06b3406cdd88af16dcf4e4b6fec2e (diff)
downloadlinux-b5387528f31d98acedf06e930554b563d87e2383.tar.bz2
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>
Diffstat (limited to 'tools/perf/perf.h')
-rw-r--r--tools/perf/perf.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index f0227e93665d..358f40135c4d 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -179,6 +179,23 @@ struct ip_callchain {
u64 ips[0];
};
+struct branch_flags {
+ u64 mispred:1;
+ u64 predicted:1;
+ u64 reserved:62;
+};
+
+struct branch_entry {
+ u64 from;
+ u64 to;
+ struct branch_flags flags;
+};
+
+struct branch_stack {
+ u64 nr;
+ struct branch_entry entries[0];
+};
+
extern bool perf_host, perf_guest;
extern const char perf_version_string[];