trace.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef UTIL_TRACE_H
 3#define UTIL_TRACE_H
 4
 5#include <stdio.h>  /* for FILE */
 6
 7enum trace_summary_mode {
 8	SUMMARY__NONE = 0,
 9	SUMMARY__BY_TOTAL,
10	SUMMARY__BY_THREAD,
11	SUMMARY__BY_CGROUP,
12};
13
14#ifdef HAVE_BPF_SKEL
15
16int trace_prepare_bpf_summary(enum trace_summary_mode mode);
17void trace_start_bpf_summary(void);
18void trace_end_bpf_summary(void);
19int trace_print_bpf_summary(FILE *fp, int max_summary);
20void trace_cleanup_bpf_summary(void);
21
22#else /* !HAVE_BPF_SKEL */
23
24static inline int trace_prepare_bpf_summary(enum trace_summary_mode mode __maybe_unused)
25{
26	return -1;
27}
28static inline void trace_start_bpf_summary(void) {}
29static inline void trace_end_bpf_summary(void) {}
30static inline int trace_print_bpf_summary(FILE *fp __maybe_unused, int max_summary __maybe_unused)
31{
32	return 0;
33}
34static inline void trace_cleanup_bpf_summary(void) {}
35
36#endif /* HAVE_BPF_SKEL */
37
38#endif /* UTIL_TRACE_H */