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20 lines
582 B
C
20 lines
582 B
C
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// SPDX-License-Identifier: GPL-2.0
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#include <bpf.h>
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struct bpf_map SEC("maps") __bpf_stdout__ = {
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.type = BPF_MAP_TYPE_PERF_EVENT_ARRAY,
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.key_size = sizeof(int),
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.value_size = sizeof(u32),
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.max_entries = __NR_CPUS__,
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};
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static int (*perf_event_output)(void *, struct bpf_map *, int, void *, unsigned long) =
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(void *)BPF_FUNC_perf_event_output;
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#define puts(from) \
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({ const int __len = sizeof(from); \
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char __from[__len] = from; \
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perf_event_output(args, &__bpf_stdout__, BPF_F_CURRENT_CPU, \
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&__from, __len & (sizeof(from) - 1)); })
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