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 }; 27 28 struct perf_session { 29 struct perf_header header; 30 unsigned long size; 31 unsigned long mmap_window; 32 struct rb_root threads; 33 struct list_head dead_threads; 34 struct thread *last_match; 35 struct machine host_machine; 36 struct rb_root machines; 37 struct perf_evlist *evlist; 38 /* 39 * FIXME: Need to split this up further, we need global 40 * stats + per event stats. 'perf diff' also needs 41 * to properly support multiple events in a single 42 * perf.data file. 43 */ 44 struct hists hists; 45 u64 sample_type; 46 int sample_size; 47 int fd; 48 bool fd_pipe; 49 bool repipe; 50 bool sample_id_all; 51 u16 id_hdr_size; 52 int cwdlen; 53 char *cwd; 54 struct ordered_samples ordered_samples; 55 struct callchain_cursor callchain_cursor; 56 char filename[0]; 57 }; 58 59 struct perf_evsel; 60 struct perf_event_ops; 61 62 typedef int (*event_sample)(union perf_event *event, struct perf_sample *sample, 63 struct perf_evsel *evsel, struct perf_session *session); 64 typedef int (*event_op)(union perf_event *self, struct perf_sample *sample, 65 struct perf_session *session); 66 typedef int (*event_synth_op)(union perf_event *self, 67 struct perf_session *session); 68 typedef int (*event_op2)(union perf_event *self, struct perf_session *session, 69 struct perf_event_ops *ops); 70 71 struct perf_event_ops { 72 event_sample sample; 73 event_op mmap, 74 comm, 75 fork, 76 exit, 77 lost, 78 read, 79 throttle, 80 unthrottle; 81 event_synth_op attr, 82 event_type, 83 tracing_data, 84 build_id; 85 event_op2 finished_round; 86 bool ordered_samples; 87 bool ordering_requires_timestamps; 88 }; 89 90 struct perf_session *perf_session__new(const char *filename, int mode, 91 bool force, bool repipe, 92 struct perf_event_ops *ops); 93 void perf_session__delete(struct perf_session *self); 94 95 void perf_event_header__bswap(struct perf_event_header *self); 96 97 int __perf_session__process_events(struct perf_session *self, 98 u64 data_offset, u64 data_size, u64 size, 99 struct perf_event_ops *ops); 100 int perf_session__process_events(struct perf_session *self, 101 struct perf_event_ops *event_ops); 102 103 int perf_session__resolve_callchain(struct perf_session *self, 104 struct thread *thread, 105 struct ip_callchain *chain, 106 struct symbol **parent); 107 108 bool perf_session__has_traces(struct perf_session *self, const char *msg); 109 110 int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps, 111 const char *symbol_name, 112 u64 addr); 113 114 void mem_bswap_64(void *src, int byte_size); 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 machine__process_t process) 146 { 147 process(&self->host_machine, self); 148 return machines__process(&self->machines, process, self); 149 } 150 151 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp); 152 153 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, 154 FILE *fp, bool with_hits); 155 156 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp); 157 158 static inline int perf_session__parse_sample(struct perf_session *session, 159 const union perf_event *event, 160 struct perf_sample *sample) 161 { 162 return perf_event__parse_sample(event, session->sample_type, 163 session->sample_size, 164 session->sample_id_all, sample); 165 } 166 167 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, 168 unsigned int type); 169 170 void perf_session__print_ip(union perf_event *event, 171 struct perf_sample *sample, 172 struct perf_session *session, 173 int print_sym, int print_dso); 174 175 #endif /* __PERF_SESSION_H */ 176