1 #ifndef __PERF_SESSION_H 2 #define __PERF_SESSION_H 3 4 #include "hist.h" 5 #include "event.h" 6 #include "header.h" 7 #include "symbol.h" 8 #include "thread.h" 9 #include <linux/rbtree.h> 10 #include "../../../include/linux/perf_event.h" 11 12 struct sample_queue; 13 struct ip_callchain; 14 struct thread; 15 16 struct ordered_samples { 17 u64 last_flush; 18 u64 next_flush; 19 u64 max_timestamp; 20 struct list_head samples; 21 struct list_head sample_cache; 22 struct list_head to_free; 23 struct sample_queue *sample_buffer; 24 struct sample_queue *last_sample; 25 int sample_buffer_idx; 26 unsigned int nr_samples; 27 }; 28 29 struct perf_session { 30 struct perf_header header; 31 unsigned long size; 32 unsigned long mmap_window; 33 struct machine host_machine; 34 struct rb_root machines; 35 struct perf_evlist *evlist; 36 /* 37 * FIXME: Need to split this up further, we need global 38 * stats + per event stats. 'perf diff' also needs 39 * to properly support multiple events in a single 40 * perf.data file. 41 */ 42 struct hists hists; 43 u64 sample_type; 44 int sample_size; 45 int fd; 46 bool fd_pipe; 47 bool repipe; 48 bool sample_id_all; 49 u16 id_hdr_size; 50 int cwdlen; 51 char *cwd; 52 struct ordered_samples ordered_samples; 53 char filename[0]; 54 }; 55 56 struct perf_evsel; 57 struct perf_event_ops; 58 59 typedef int (*event_sample)(struct perf_event_ops *ops, 60 union perf_event *event, struct perf_sample *sample, 61 struct perf_evsel *evsel, struct machine *machine); 62 typedef int (*event_op)(struct perf_event_ops *ops, union perf_event *event, 63 struct perf_sample *sample, 64 struct machine *machine); 65 typedef int (*event_synth_op)(union perf_event *self, 66 struct perf_session *session); 67 typedef int (*event_attr_op)(union perf_event *event, 68 struct perf_evlist **pevlist); 69 typedef int (*event_simple_op)(struct perf_event_ops *ops, 70 union perf_event *event); 71 typedef int (*event_op2)(struct perf_event_ops *ops, union perf_event *event, 72 struct perf_session *session); 73 74 struct perf_event_ops { 75 event_sample sample, 76 read; 77 event_op mmap, 78 comm, 79 fork, 80 exit, 81 lost, 82 throttle, 83 unthrottle; 84 event_attr_op attr; 85 event_synth_op tracing_data; 86 event_simple_op event_type; 87 event_op2 finished_round, 88 build_id; 89 bool ordered_samples; 90 bool ordering_requires_timestamps; 91 }; 92 93 struct perf_session *perf_session__new(const char *filename, int mode, 94 bool force, bool repipe, 95 struct perf_event_ops *ops); 96 void perf_session__delete(struct perf_session *self); 97 98 void perf_event_header__bswap(struct perf_event_header *self); 99 100 int __perf_session__process_events(struct perf_session *self, 101 u64 data_offset, u64 data_size, u64 size, 102 struct perf_event_ops *ops); 103 int perf_session__process_events(struct perf_session *self, 104 struct perf_event_ops *event_ops); 105 106 int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel, 107 struct thread *thread, 108 struct ip_callchain *chain, 109 struct symbol **parent); 110 111 bool perf_session__has_traces(struct perf_session *self, const char *msg); 112 113 void mem_bswap_64(void *src, int byte_size); 114 void perf_event__attr_swap(struct perf_event_attr *attr); 115 116 int perf_session__create_kernel_maps(struct perf_session *self); 117 118 void perf_session__update_sample_type(struct perf_session *self); 119 void perf_session__remove_thread(struct perf_session *self, struct thread *th); 120 121 static inline 122 struct machine *perf_session__find_host_machine(struct perf_session *self) 123 { 124 return &self->host_machine; 125 } 126 127 static inline 128 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid) 129 { 130 if (pid == HOST_KERNEL_ID) 131 return &self->host_machine; 132 return machines__find(&self->machines, pid); 133 } 134 135 static inline 136 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid) 137 { 138 if (pid == HOST_KERNEL_ID) 139 return &self->host_machine; 140 return machines__findnew(&self->machines, pid); 141 } 142 143 static inline 144 void perf_session__process_machines(struct perf_session *self, 145 struct perf_event_ops *ops, 146 machine__process_t process) 147 { 148 process(&self->host_machine, ops); 149 return machines__process(&self->machines, process, ops); 150 } 151 152 struct thread *perf_session__findnew(struct perf_session *self, pid_t pid); 153 size_t perf_session__fprintf(struct perf_session *self, FILE *fp); 154 155 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp); 156 157 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, 158 FILE *fp, bool with_hits); 159 160 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp); 161 162 static inline int perf_session__parse_sample(struct perf_session *session, 163 const union perf_event *event, 164 struct perf_sample *sample) 165 { 166 return perf_event__parse_sample(event, session->sample_type, 167 session->sample_size, 168 session->sample_id_all, sample, 169 session->header.needs_swap); 170 } 171 172 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, 173 unsigned int type); 174 175 void perf_event__print_ip(union perf_event *event, struct perf_sample *sample, 176 struct machine *machine, struct perf_evsel *evsel, 177 int print_sym, int print_dso); 178 179 int perf_session__cpu_bitmap(struct perf_session *session, 180 const char *cpu_list, unsigned long *cpu_bitmap); 181 182 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full); 183 #endif /* __PERF_SESSION_H */ 184