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 fd; 47 bool fd_pipe; 48 bool repipe; 49 bool sample_id_all; 50 u16 id_hdr_size; 51 int cwdlen; 52 char *cwd; 53 struct ordered_samples ordered_samples; 54 struct callchain_cursor callchain_cursor; 55 char filename[0]; 56 }; 57 58 struct perf_event_ops; 59 60 typedef int (*event_op)(union perf_event *self, struct perf_sample *sample, 61 struct perf_session *session); 62 typedef int (*event_synth_op)(union perf_event *self, 63 struct perf_session *session); 64 typedef int (*event_op2)(union perf_event *self, struct perf_session *session, 65 struct perf_event_ops *ops); 66 67 struct perf_event_ops { 68 event_op sample, 69 mmap, 70 comm, 71 fork, 72 exit, 73 lost, 74 read, 75 throttle, 76 unthrottle; 77 event_synth_op attr, 78 event_type, 79 tracing_data, 80 build_id; 81 event_op2 finished_round; 82 bool ordered_samples; 83 bool ordering_requires_timestamps; 84 }; 85 86 struct perf_session *perf_session__new(const char *filename, int mode, 87 bool force, bool repipe, 88 struct perf_event_ops *ops); 89 void perf_session__delete(struct perf_session *self); 90 91 void perf_event_header__bswap(struct perf_event_header *self); 92 93 int __perf_session__process_events(struct perf_session *self, 94 u64 data_offset, u64 data_size, u64 size, 95 struct perf_event_ops *ops); 96 int perf_session__process_events(struct perf_session *self, 97 struct perf_event_ops *event_ops); 98 99 int perf_session__resolve_callchain(struct perf_session *self, 100 struct thread *thread, 101 struct ip_callchain *chain, 102 struct symbol **parent); 103 104 bool perf_session__has_traces(struct perf_session *self, const char *msg); 105 106 int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps, 107 const char *symbol_name, 108 u64 addr); 109 110 void mem_bswap_64(void *src, int byte_size); 111 112 int perf_session__create_kernel_maps(struct perf_session *self); 113 114 void perf_session__update_sample_type(struct perf_session *self); 115 void perf_session__remove_thread(struct perf_session *self, struct thread *th); 116 117 static inline 118 struct machine *perf_session__find_host_machine(struct perf_session *self) 119 { 120 return &self->host_machine; 121 } 122 123 static inline 124 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid) 125 { 126 if (pid == HOST_KERNEL_ID) 127 return &self->host_machine; 128 return machines__find(&self->machines, pid); 129 } 130 131 static inline 132 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid) 133 { 134 if (pid == HOST_KERNEL_ID) 135 return &self->host_machine; 136 return machines__findnew(&self->machines, pid); 137 } 138 139 static inline 140 void perf_session__process_machines(struct perf_session *self, 141 machine__process_t process) 142 { 143 process(&self->host_machine, self); 144 return machines__process(&self->machines, process, self); 145 } 146 147 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp); 148 149 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, 150 FILE *fp, bool with_hits); 151 152 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp); 153 154 static inline int perf_session__parse_sample(struct perf_session *session, 155 const union perf_event *event, 156 struct perf_sample *sample) 157 { 158 return perf_event__parse_sample(event, session->sample_type, 159 session->sample_id_all, sample); 160 } 161 162 void perf_session__print_symbols(union perf_event *event, 163 struct perf_sample *sample, 164 struct perf_session *session); 165 166 #endif /* __PERF_SESSION_H */ 167