73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_BPF_COUNTER_H
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#define __PERF_BPF_COUNTER_H 1
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#include <linux/list.h>
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struct evsel;
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struct target;
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struct bpf_counter;
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typedef int (*bpf_counter_evsel_op)(struct evsel *evsel);
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typedef int (*bpf_counter_evsel_target_op)(struct evsel *evsel,
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struct target *target);
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typedef int (*bpf_counter_evsel_install_pe_op)(struct evsel *evsel,
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int cpu,
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int fd);
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struct bpf_counter_ops {
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bpf_counter_evsel_target_op load;
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bpf_counter_evsel_op enable;
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bpf_counter_evsel_op read;
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bpf_counter_evsel_op destroy;
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bpf_counter_evsel_install_pe_op install_pe;
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};
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struct bpf_counter {
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void *skel;
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struct list_head list;
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};
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#ifdef HAVE_BPF_SKEL
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int bpf_counter__load(struct evsel *evsel, struct target *target);
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int bpf_counter__enable(struct evsel *evsel);
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int bpf_counter__read(struct evsel *evsel);
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void bpf_counter__destroy(struct evsel *evsel);
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int bpf_counter__install_pe(struct evsel *evsel, int cpu, int fd);
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#else /* HAVE_BPF_SKEL */
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#include<linux/err.h>
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static inline int bpf_counter__load(struct evsel *evsel __maybe_unused,
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struct target *target __maybe_unused)
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{
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return 0;
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}
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static inline int bpf_counter__enable(struct evsel *evsel __maybe_unused)
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{
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return 0;
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}
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static inline int bpf_counter__read(struct evsel *evsel __maybe_unused)
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{
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return -EAGAIN;
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}
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static inline void bpf_counter__destroy(struct evsel *evsel __maybe_unused)
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{
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}
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static inline int bpf_counter__install_pe(struct evsel *evsel __maybe_unused,
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int cpu __maybe_unused,
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int fd __maybe_unused)
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{
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return 0;
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}
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#endif /* HAVE_BPF_SKEL */
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#endif /* __PERF_BPF_COUNTER_H */
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