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Commit 60f83fa6 authored by Jin Yao's avatar Jin Yao Committed by Arnaldo Carvalho de Melo
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perf record: Create a new option save_type in --branch-filter 



The option indicates the kernel to save branch type during sampling.

One example:

  perf record -g --branch-filter any,save_type <command>

Signed-off-by: default avatarYao Jin <yao.jin@linux.intel.com>
Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1500379995-6449-4-git-send-email-yao.jin@linux.intel.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent d5c7f9dc

tools/perf/Documentation/perf-record.txt

+1 −0
Original line number Original line Diff line number Diff line
@@ -332,6 +332,7 @@ following filters are defined: 
	- no_tx: only when the target is not in a hardware transaction

	- no_tx: only when the target is not in a hardware transaction

	- abort_tx: only when the target is a hardware transaction abort

	- abort_tx: only when the target is a hardware transaction abort

	- cond: conditional branches

	- cond: conditional branches

	- save_type: save branch type during sampling in case binary is not available later





+

+

The option requires at least one branch type among any, any_call, any_ret, ind_call, cond.

The option requires at least one branch type among any, any_call, any_ret, ind_call, cond.

tools/perf/util/parse-branch-options.c

+1 −0
Original line number Original line Diff line number Diff line
@@ -28,6 +28,7 @@ static const struct branch_mode branch_modes[] = { 
	BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND),

	BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND),

	BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP),

	BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP),

	BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL),

	BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL),

	BRANCH_OPT("save_type", PERF_SAMPLE_BRANCH_TYPE_SAVE),

	BRANCH_END

	BRANCH_END

};

};