When there's new data in the AUX space, output a record indicating its offset and size and a set of flags, such as PERF_AUX_FLAG_TRUNCATED, to mean the described data was truncated to fit in the ring buffer.
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| @@ -768,6 +768,20 @@ enum perf_event_type { · 767 unmodified lines | |||
| 768 | */ | 768 | */ |
| 769 | PERF_RECORD_MMAP2 = 10, | 769 | PERF_RECORD_MMAP2 = 10, |
| 770 | 770 | ||
| 771 | /* | ||
| 772 | * Records that new data landed in the AUX buffer part. | ||
| 773 | * | ||
| 774 | * struct { | ||
| 775 | * struct perf_event_header header; | ||
| 776 | * | ||
| 777 | * u64 aux_offset; | ||
| 778 | * u64 aux_size; | ||
| 779 | * u64 flags; | ||
| 780 | * struct sample_id sample_id; | ||
| 781 | * }; | ||
| 782 | */ | ||
| 783 | PERF_RECORD_AUX = 11, | ||
| 784 | |||
| 771 | PERF_RECORD_MAX, /* non-ABI */ | 785 | PERF_RECORD_MAX, /* non-ABI */ |
| 772 | }; | 786 | }; |
| 773 | 787 | ||
| @@ -785,6 +799,11 @@ enum perf_callchain_context { · 11 unmodified lines | |||
| 785 | PERF_CONTEXT_MAX = (__u64)-4095, | 799 | PERF_CONTEXT_MAX = (__u64)-4095, |
| 786 | }; | 800 | }; |
| 787 | 801 | ||
| 802 | /** | ||
| 803 | * PERF_RECORD_AUX::flags bits | ||
| 804 | */ | ||
| 805 | #define PERF_AUX_FLAG_TRUNCATED 0x01 /* record was truncated to fit */ | ||
| 806 | |||
| 788 | #define PERF_FLAG_FD_NO_GROUP (1UL << 0) | 807 | #define PERF_FLAG_FD_NO_GROUP (1UL << 0) |
| 789 | #define PERF_FLAG_FD_OUTPUT (1UL << 1) | 808 | #define PERF_FLAG_FD_OUTPUT (1UL << 1) |
| 790 | #define PERF_FLAG_PID_CGROUP (1UL << 2) /* pid=cgroup id, per-cpu mode only */ | 809 | #define PERF_FLAG_PID_CGROUP (1UL << 2) /* pid=cgroup id, per-cpu mode only */ |