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perf: add new PERF_SAMPLE_BRANCH_IND_JUMP branch sample type
This patch adds a new branch_sample_type flag to enable filtering branch sampling to indirect jumps. The support is subject to hardware or kernel software support on each architecture. Filtering on indirect jump is useful to study the targets of the jump. Signed-off-by: Stephane Eranian <eranian@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Andi Kleen <ak@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: acme@redhat.com Cc: dsahern@gmail.com Cc: jolsa@redhat.com Cc: kan.liang@intel.com Cc: namhyung@kernel.org Link: http://lkml.kernel.org/r/1431637800-31061-2-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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@ -167,6 +167,7 @@ enum perf_branch_sample_type_shift {
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PERF_SAMPLE_BRANCH_COND_SHIFT = 10, /* conditional branches */
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PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT = 11, /* call/ret stack */
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PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT = 12, /* indirect jumps */
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PERF_SAMPLE_BRANCH_MAX_SHIFT /* non-ABI */
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};
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@ -186,6 +187,7 @@ enum perf_branch_sample_type {
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PERF_SAMPLE_BRANCH_COND = 1U << PERF_SAMPLE_BRANCH_COND_SHIFT,
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PERF_SAMPLE_BRANCH_CALL_STACK = 1U << PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT,
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PERF_SAMPLE_BRANCH_IND_JUMP = 1U << PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT,
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PERF_SAMPLE_BRANCH_MAX = 1U << PERF_SAMPLE_BRANCH_MAX_SHIFT,
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};
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