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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: Yao Jin <yao.jin@linux.intel.com> Acked-by: Jiri 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: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -332,6 +332,7 @@ following filters are defined:
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- no_tx: only when the target is not in a hardware transaction
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- abort_tx: only when the target is a hardware transaction abort
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- cond: conditional branches
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- save_type: save branch type during sampling in case binary is not available later
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+
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The option requires at least one branch type among any, any_call, any_ret, ind_call, cond.
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@ -28,6 +28,7 @@ static const struct branch_mode branch_modes[] = {
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BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND),
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BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP),
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BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL),
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BRANCH_OPT("save_type", PERF_SAMPLE_BRANCH_TYPE_SAVE),
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BRANCH_END
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};
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