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_evsel; 59 struct perf_event_ops; 60 61 typedef int (*event_sample)(union perf_event *event, struct perf_sample *sample, 62 struct perf_evsel *evsel, struct perf_session *session); 63 typedef int (*event_op)(union perf_event *self, struct perf_sample *sample, 64 struct perf_session *session); 65 typedef int (*event_synth_op)(union perf_event *self, 66 struct perf_session *session); 67 typedef int (*event_op2)(union perf_event *self, struct perf_session *session, 68 struct perf_event_ops *ops); 69 70 struct perf_event_ops { 71 event_sample sample; 72 event_op mmap, 73 comm, 74 fork, 75 exit, 76 lost, 77 read, 78 throttle, 79 unthrottle; 80 event_synth_op attr, 81 event_type, 82 tracing_data, 83 build_id; 84 event_op2 finished_round; 85 bool ordered_samples; 86 bool ordering_requires_timestamps; 87 }; 88 89 struct perf_session *perf_session__new(const char *filename, int mode, 90 bool force, bool repipe, 91 struct perf_event_ops *ops); 92 void perf_session__delete(struct perf_session *self); 93 94 void perf_event_header__bswap(struct perf_event_header *self); 95 96 int __perf_session__process_events(struct perf_session *self, 97 u64 data_offset, u64 data_size, u64 size, 98 struct perf_event_ops *ops); 99 int perf_session__process_events(struct perf_session *self, 100 struct perf_event_ops *event_ops); 101 102 int perf_session__resolve_callchain(struct perf_session *self, 103 struct thread *thread, 104 struct ip_callchain *chain, 105 struct symbol **parent); 106 107 bool perf_session__has_traces(struct perf_session *self, const char *msg); 108 109 int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps, 110 const char *symbol_name, 111 u64 addr); 112 113 void mem_bswap_64(void *src, int byte_size); 114 115 int perf_session__create_kernel_maps(struct perf_session *self); 116 117 void perf_session__update_sample_type(struct perf_session *self); 118 void perf_session__remove_thread(struct perf_session *self, struct thread *th); 119 120 static inline 121 struct machine *perf_session__find_host_machine(struct perf_session *self) 122 { 123 return &self->host_machine; 124 } 125 126 static inline 127 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid) 128 { 129 if (pid == HOST_KERNEL_ID) 130 return &self->host_machine; 131 return machines__find(&self->machines, pid); 132 } 133 134 static inline 135 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid) 136 { 137 if (pid == HOST_KERNEL_ID) 138 return &self->host_machine; 139 return machines__findnew(&self->machines, pid); 140 } 141 142 static inline 143 void perf_session__process_machines(struct perf_session *self, 144 machine__process_t process) 145 { 146 process(&self->host_machine, self); 147 return machines__process(&self->machines, process, self); 148 } 149 150 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp); 151 152 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, 153 FILE *fp, bool with_hits); 154 155 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp); 156 157 static inline int perf_session__parse_sample(struct perf_session *session, 158 const union perf_event *event, 159 struct perf_sample *sample) 160 { 161 return perf_event__parse_sample(event, session->sample_type, 162 session->sample_id_all, sample); 163 } 164 165 void perf_session__print_symbols(union perf_event *event, 166 struct perf_sample *sample, 167 struct perf_session *session); 168 169 #endif /* __PERF_SESSION_H */ 170