1 /* SPDX-License-Identifier: GPL-2.0 */
2 #pragma once
3
4 enum summary_field {
5 SUMMARY_CURRENT,
6 SUMMARY_MIN,
7 SUMMARY_MAX,
8 SUMMARY_COUNT,
9 SUMMARY_SUM,
10 SUMMARY_OVERFLOW,
11 SUMMARY_FIELD_N
12 };
13
14 #ifndef __bpf__
15 #ifdef HAVE_BPF_SKEL
16 int timerlat_bpf_init(struct timerlat_params *params);
17 int timerlat_bpf_attach(void);
18 void timerlat_bpf_detach(void);
19 void timerlat_bpf_destroy(void);
20 int timerlat_bpf_wait(int timeout);
21 int timerlat_bpf_restart_tracing(void);
22 int timerlat_bpf_get_hist_value(int key,
23 long long *value_irq,
24 long long *value_thread,
25 long long *value_user,
26 int cpus);
27 int timerlat_bpf_get_summary_value(enum summary_field key,
28 long long *value_irq,
29 long long *value_thread,
30 long long *value_user,
31 int cpus);
32
have_libbpf_support(void)33 static inline int have_libbpf_support(void) { return 1; }
34 #else
timerlat_bpf_init(struct timerlat_params * params)35 static inline int timerlat_bpf_init(struct timerlat_params *params)
36 {
37 return -1;
38 }
timerlat_bpf_attach(void)39 static inline int timerlat_bpf_attach(void) { return -1; }
timerlat_bpf_detach(void)40 static inline void timerlat_bpf_detach(void) { };
timerlat_bpf_destroy(void)41 static inline void timerlat_bpf_destroy(void) { };
timerlat_bpf_wait(int timeout)42 static inline int timerlat_bpf_wait(int timeout) { return -1; }
timerlat_bpf_restart_tracing(void)43 static inline int timerlat_bpf_restart_tracing(void) { return -1; };
timerlat_bpf_get_hist_value(int key,long long * value_irq,long long * value_thread,long long * value_user,int cpus)44 static inline int timerlat_bpf_get_hist_value(int key,
45 long long *value_irq,
46 long long *value_thread,
47 long long *value_user,
48 int cpus)
49 {
50 return -1;
51 }
timerlat_bpf_get_summary_value(enum summary_field key,long long * value_irq,long long * value_thread,long long * value_user,int cpus)52 static inline int timerlat_bpf_get_summary_value(enum summary_field key,
53 long long *value_irq,
54 long long *value_thread,
55 long long *value_user,
56 int cpus)
57 {
58 return -1;
59 }
have_libbpf_support(void)60 static inline int have_libbpf_support(void) { return 0; }
61 #endif /* HAVE_BPF_SKEL */
62 #endif /* __bpf__ */
63