Diffstat (limited to 'tools/perf/Documentation/perf-script.txt')
1 files changed, 12 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index b3b42f9285df..382ddfb45d1d 100644
@@ -112,11 +112,11 @@ OPTIONS
Do various checks like samples ordering and lost events.
Comma separated list of fields to print. Options are:
comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr, symoff,
- srcline, period, iregs, flags.
+ srcline, period, iregs, brstack, brstacksym, flags.
Field list can be prepended with the type, trace, sw or hw,
to indicate to which event type the field list applies.
e.g., -f sw:comm,tid,time,ip,sym and -f trace:time,cpu,trace
@@ -175,6 +175,16 @@ OPTIONS
Finally, a user may not set fields to none for all event types.
i.e., -f "" is not allowed.
+ The brstack output includes branch related information with raw addresses using the
+ /v/v/v/v/ syntax in the following order:
+ FROM: branch source instruction
+ TO : branch target instruction
+ M/P/-: M=branch target mispredicted or branch direction was mispredicted, P=target predicted or direction predicted, -=not supported
+ X/- : X=branch inside a transactional region, -=not in transaction region or not supported
+ A/- : A=TSX abort entry, -=not aborted region or not supported
+ The brstacksym is identical to brstack, except that the FROM and TO addresses are printed in a symbolic form if possible.