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 size_t mmap_len; 56 u64 head; 57 size_t size; 58 char data[]; 59 }; 60 61 struct perf_tool; 62 63 struct perf_session *__perf_session__new(struct perf_data *data, 64 bool repipe, int repipe_fd, 65 struct perf_tool *tool); 66 67 static inline struct perf_session *perf_session__new(struct perf_data *data, 68 struct perf_tool *tool) 69 { 70 return __perf_session__new(data, false, -1, tool); 71 } 72 73 void perf_session__delete(struct perf_session *session); 74 75 void perf_event_header__bswap(struct perf_event_header *hdr); 76 77 int perf_session__peek_event(struct perf_session *session, off_t file_offset, 78 void *buf, size_t buf_sz, 79 union perf_event **event_ptr, 80 struct perf_sample *sample); 81 typedef int (*peek_events_cb_t)(struct perf_session *session, 82 union perf_event *event, u64 offset, 83 void *data); 84 int perf_session__peek_events(struct perf_session *session, u64 offset, 85 u64 size, peek_events_cb_t cb, void *data); 86 87 int perf_session__process_events(struct perf_session *session); 88 89 int perf_session__queue_event(struct perf_session *s, union perf_event *event, 90 u64 timestamp, u64 file_offset); 91 92 void perf_tool__fill_defaults(struct perf_tool *tool); 93 94 int perf_session__resolve_callchain(struct perf_session *session, 95 struct evsel *evsel, 96 struct thread *thread, 97 struct ip_callchain *chain, 98 struct symbol **parent); 99 100 bool perf_session__has_traces(struct perf_session *session, const char *msg); 101 102 void perf_event__attr_swap(struct perf_event_attr *attr); 103 104 int perf_session__create_kernel_maps(struct perf_session *session); 105 106 void perf_session__set_id_hdr_size(struct perf_session *session); 107 108 static inline 109 struct machine *perf_session__find_machine(struct perf_session *session, pid_t pid) 110 { 111 return machines__find(&session->machines, pid); 112 } 113 114 static inline 115 struct machine *perf_session__findnew_machine(struct perf_session *session, pid_t pid) 116 { 117 return machines__findnew(&session->machines, pid); 118 } 119 120 struct thread *perf_session__findnew(struct perf_session *session, pid_t pid); 121 int perf_session__register_idle_thread(struct perf_session *session); 122 123 size_t perf_session__fprintf(struct perf_session *session, FILE *fp); 124 125 size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp); 126 127 size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp, 128 bool (fn)(struct dso *dso, int parm), int parm); 129 130 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp, 131 bool skip_empty); 132 133 struct evsel *perf_session__find_first_evtype(struct perf_session *session, 134 unsigned int type); 135 136 int perf_session__cpu_bitmap(struct perf_session *session, 137 const char *cpu_list, unsigned long *cpu_bitmap); 138 139 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full); 140 141 struct evsel_str_handler; 142 143 #define perf_session__set_tracepoints_handlers(session, array) \ 144 __evlist__set_tracepoints_handlers(session->evlist, array, ARRAY_SIZE(array)) 145 146 extern volatile int session_done; 147 148 #define session_done() READ_ONCE(session_done) 149 150 int perf_session__deliver_synth_event(struct perf_session *session, 151 union perf_event *event, 152 struct perf_sample *sample); 153 154 int perf_event__process_id_index(struct perf_session *session, 155 union perf_event *event); 156 157 #endif /* __PERF_SESSION_H */ 158