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