1 #ifndef __PERF_FTRACE_H__ 2 #define __PERF_FTRACE_H__ 3 4 #include <linux/list.h> 5 6 #include "target.h" 7 8 struct evlist; 9 struct hashamp; 10 struct stats; 11 12 struct perf_ftrace { 13 struct evlist *evlist; 14 struct target target; 15 const char *tracer; 16 struct list_head filters; 17 struct list_head notrace; 18 struct list_head graph_funcs; 19 struct list_head nograph_funcs; 20 struct hashmap *profile_hash; 21 unsigned long percpu_buffer_size; 22 bool inherit; 23 bool use_nsec; 24 unsigned int bucket_range; 25 unsigned int min_latency; 26 unsigned int max_latency; 27 int graph_depth; 28 int func_stack_trace; 29 int func_irq_info; 30 int graph_nosleep_time; 31 int graph_noirqs; 32 int graph_verbose; 33 int graph_thresh; 34 int graph_tail; 35 }; 36 37 struct filter_entry { 38 struct list_head list; 39 char name[]; 40 }; 41 42 #define NUM_BUCKET 22 /* 20 + 2 (for outliers in both direction) */ 43 44 #ifdef HAVE_BPF_SKEL 45 46 int perf_ftrace__latency_prepare_bpf(struct perf_ftrace *ftrace); 47 int perf_ftrace__latency_start_bpf(struct perf_ftrace *ftrace); 48 int perf_ftrace__latency_stop_bpf(struct perf_ftrace *ftrace); 49 int perf_ftrace__latency_read_bpf(struct perf_ftrace *ftrace, 50 int buckets[], struct stats *stats); 51 int perf_ftrace__latency_cleanup_bpf(struct perf_ftrace *ftrace); 52 53 #else /* !HAVE_BPF_SKEL */ 54 55 static inline int 56 perf_ftrace__latency_prepare_bpf(struct perf_ftrace *ftrace __maybe_unused) 57 { 58 return -1; 59 } 60 61 static inline int 62 perf_ftrace__latency_start_bpf(struct perf_ftrace *ftrace __maybe_unused) 63 { 64 return -1; 65 } 66 67 static inline int 68 perf_ftrace__latency_stop_bpf(struct perf_ftrace *ftrace __maybe_unused) 69 { 70 return -1; 71 } 72 73 static inline int 74 perf_ftrace__latency_read_bpf(struct perf_ftrace *ftrace __maybe_unused, 75 int buckets[] __maybe_unused, 76 struct stats *stats __maybe_unused) 77 { 78 return -1; 79 } 80 81 static inline int 82 perf_ftrace__latency_cleanup_bpf(struct perf_ftrace *ftrace __maybe_unused) 83 { 84 return -1; 85 } 86 87 #endif /* HAVE_BPF_SKEL */ 88 89 #endif /* __PERF_FTRACE_H__ */ 90