C++ (Cpp) __bpf_perf_event_output Examples

Example #1

File: bpf_trace.c Project: acton393/linux

BPF_CALL_5(bpf_perf_event_output, struct pt_regs *, regs, struct bpf_map *, map,
	   u64, flags, void *, data, u64, size)
{
	struct perf_raw_record raw = {
		.frag = {
			.size = size,
			.data = data,
		},
	};

	if (unlikely(flags & ~(BPF_F_INDEX_MASK)))
		return -EINVAL;

	return __bpf_perf_event_output(regs, map, flags, &raw);
}

Example #2

File: bpf_trace.c Project: sjp38/linux.doc_trans_membarrier

static u64 bpf_perf_event_output(u64 r1, u64 r2, u64 flags, u64 r4, u64 size)
{
	struct pt_regs *regs = (struct pt_regs *)(long) r1;
	struct bpf_map *map  = (struct bpf_map *)(long) r2;
	void *data = (void *)(long) r4;
	struct perf_raw_record raw = {
		.frag = {
			.size = size,
			.data = data,
		},
	};

	if (unlikely(flags & ~(BPF_F_INDEX_MASK)))
		return -EINVAL;

	return __bpf_perf_event_output(regs, map, flags, &raw);
}

Example #3

File: bpf_trace.c Project: markus-oberhumer/linux

BPF_CALL_5(bpf_perf_event_output, struct pt_regs *, regs, struct bpf_map *, map,
	   u64, flags, void *, data, u64, size)
{
	struct perf_sample_data *sd = this_cpu_ptr(&bpf_trace_sd);
	struct perf_raw_record raw = {
		.frag = {
			.size = size,
			.data = data,
		},
	};

	if (unlikely(flags & ~(BPF_F_INDEX_MASK)))
		return -EINVAL;

	perf_sample_data_init(sd, 0, 0);
	sd->raw = &raw;

	return __bpf_perf_event_output(regs, map, flags, sd);
}