1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __PERF_SESSION_H 3 #define __PERF_SESSION_H 4 5 #include "trace-event.h" 6 #include "event.h" 7 #include "header.h" 8 #include "machine.h" 9 #include "data.h" 10 #include "ordered-events.h" 11 #include "util/compress.h" 12 #include <linux/kernel.h> 13 #include <linux/rbtree.h> 14 #include <linux/perf_event.h> 15 16 struct ip_callchain; 17 struct symbol; 18 struct thread; 19 20 struct auxtrace; 21 struct itrace_synth_opts; 22 23 struct decomp_data { 24 struct decomp *decomp; 25 struct decomp *decomp_last; 26 struct zstd_data *zstd_decomp; 27 }; 28 29 struct perf_session { 30 struct perf_header header; 31 struct machines machines; 32 struct evlist *evlist; 33 struct auxtrace *auxtrace; 34 struct itrace_synth_opts *itrace_synth_opts; 35 struct list_head auxtrace_index; 36 struct trace_event tevent; 37 struct perf_record_time_conv time_conv; 38 bool repipe; 39 bool one_mmap; 40 void *one_mmap_addr; 41 u64 one_mmap_offset; 42 struct ordered_events ordered_events; 43 struct perf_data *data; 44 struct perf_tool *tool; 45 u64 bytes_transferred; 46 u64 bytes_compressed; 47 struct zstd_data zstd_data; 48 struct decomp_data decomp_data; 49 struct decomp_data *active_decomp; 50 }; 51 52 struct decomp { 53 struct decomp *next; 54 u64 file_pos; 55 const char *file_path; 56 size_t mmap_len; 57 u64 head; 58 size_t size; 59 char data[]; 60 }; 61 62 struct perf_tool; 63 64 struct perf_session *__perf_session__new(struct perf_data *data, 65 bool repipe, int repipe_fd, 66 struct perf_tool *tool); 67 68 static inline struct perf_session *perf_session__new(struct perf_data *data, 69 struct perf_tool *tool) 70 { 71 return __perf_session__new(data, false, -1, tool); 72 } 73 74 void perf_session__delete(struct perf_session *session); 75 76 void perf_event_header__bswap(struct perf_event_header *hdr); 77 78 int perf_session__peek_event(struct perf_session *session, off_t file_offset, 79 void *buf, size_t buf_sz, 80 union perf_event **event_ptr, 81 struct perf_sample *sample); 82 typedef int (*peek_events_cb_t)(struct perf_session *session, 83 union perf_event *event, u64 offset, 84 void *data); 85 int perf_session__peek_events(struct perf_session *session, u64 offset, 86 u64 size, peek_events_cb_t cb, void *data); 87 88 int perf_session__process_events(struct perf_session *session); 89 90 int perf_session__queue_event(struct perf_session *s, union perf_event *event, 91 u64 timestamp, u64 file_offset, const char *file_path); 92 93 void perf_tool__fill_defaults(struct perf_tool *tool); 94 95 int perf_session__resolve_callchain(struct perf_session *session, 96 struct evsel *evsel, 97 struct thread *thread, 98 struct ip_callchain *chain, 99 struct symbol **parent); 100 101 bool perf_session__has_traces(struct perf_session *session, const char *msg); 102 103 void perf_event__attr_swap(struct perf_event_attr *attr); 104 105 int perf_session__create_kernel_maps(struct perf_session *session); 106 107 void perf_session__set_id_hdr_size(struct perf_session *session); 108 109 static inline 110 struct machine *perf_session__find_machine(struct perf_session *session, pid_t pid) 111 { 112 return machines__find(&session->machines, pid); 113 } 114 115 static inline 116 struct machine *perf_session__findnew_machine(struct perf_session *session, pid_t pid) 117 { 118 return machines__findnew(&session->machines, pid); 119 } 120 121 struct thread *perf_session__findnew(struct perf_session *session, pid_t pid); 122 int perf_session__register_idle_thread(struct perf_session *session); 123 124 size_t perf_session__fprintf(struct perf_session *session, FILE *fp); 125 126 size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp); 127 128 size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp, 129 bool (fn)(struct dso *dso, int parm), int parm); 130 131 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp, 132 bool skip_empty); 133 134 struct evsel *perf_session__find_first_evtype(struct perf_session *session, 135 unsigned int type); 136 137 int perf_session__cpu_bitmap(struct perf_session *session, 138 const char *cpu_list, unsigned long *cpu_bitmap); 139 140 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full); 141 142 struct evsel_str_handler; 143 144 #define perf_session__set_tracepoints_handlers(session, array) \ 145 __evlist__set_tracepoints_handlers(session->evlist, array, ARRAY_SIZE(array)) 146 147 extern volatile int session_done; 148 149 #define session_done() READ_ONCE(session_done) 150 151 int perf_session__deliver_synth_event(struct perf_session *session, 152 union perf_event *event, 153 struct perf_sample *sample); 154 155 int perf_event__process_id_index(struct perf_session *session, 156 union perf_event *event); 157 158 int perf_event__process_finished_round(struct perf_tool *tool, 159 union perf_event *event, 160 struct ordered_events *oe); 161 162 #endif /* __PERF_SESSION_H */ 163