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 #ifdef HAVE_LIBTRACEEVENT 37 struct trace_event tevent; 38 #endif 39 struct perf_record_time_conv time_conv; 40 bool repipe; 41 bool one_mmap; 42 void *one_mmap_addr; 43 u64 one_mmap_offset; 44 struct ordered_events ordered_events; 45 struct perf_data *data; 46 struct perf_tool *tool; 47 u64 bytes_transferred; 48 u64 bytes_compressed; 49 struct zstd_data zstd_data; 50 struct decomp_data decomp_data; 51 struct decomp_data *active_decomp; 52 }; 53 54 struct decomp { 55 struct decomp *next; 56 u64 file_pos; 57 const char *file_path; 58 size_t mmap_len; 59 u64 head; 60 size_t size; 61 char data[]; 62 }; 63 64 struct perf_tool; 65 66 struct perf_session *__perf_session__new(struct perf_data *data, 67 bool repipe, int repipe_fd, 68 struct perf_tool *tool); 69 70 static inline struct perf_session *perf_session__new(struct perf_data *data, 71 struct perf_tool *tool) 72 { 73 return __perf_session__new(data, false, -1, tool); 74 } 75 76 void perf_session__delete(struct perf_session *session); 77 78 void perf_event_header__bswap(struct perf_event_header *hdr); 79 80 int perf_session__peek_event(struct perf_session *session, off_t file_offset, 81 void *buf, size_t buf_sz, 82 union perf_event **event_ptr, 83 struct perf_sample *sample); 84 typedef int (*peek_events_cb_t)(struct perf_session *session, 85 union perf_event *event, u64 offset, 86 void *data); 87 int perf_session__peek_events(struct perf_session *session, u64 offset, 88 u64 size, peek_events_cb_t cb, void *data); 89 90 int perf_session__process_events(struct perf_session *session); 91 92 int perf_session__queue_event(struct perf_session *s, union perf_event *event, 93 u64 timestamp, u64 file_offset, const char *file_path); 94 95 void perf_tool__fill_defaults(struct perf_tool *tool); 96 97 int perf_session__resolve_callchain(struct perf_session *session, 98 struct evsel *evsel, 99 struct thread *thread, 100 struct ip_callchain *chain, 101 struct symbol **parent); 102 103 bool perf_session__has_traces(struct perf_session *session, const char *msg); 104 105 void perf_event__attr_swap(struct perf_event_attr *attr); 106 107 int perf_session__create_kernel_maps(struct perf_session *session); 108 109 void perf_session__set_id_hdr_size(struct perf_session *session); 110 111 static inline 112 struct machine *perf_session__find_machine(struct perf_session *session, pid_t pid) 113 { 114 return machines__find(&session->machines, pid); 115 } 116 117 static inline 118 struct machine *perf_session__findnew_machine(struct perf_session *session, pid_t pid) 119 { 120 return machines__findnew(&session->machines, pid); 121 } 122 123 struct thread *perf_session__findnew(struct perf_session *session, pid_t pid); 124 int perf_session__register_idle_thread(struct perf_session *session); 125 126 size_t perf_session__fprintf(struct perf_session *session, FILE *fp); 127 128 size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp); 129 130 size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp, 131 bool (fn)(struct dso *dso, int parm), int parm); 132 133 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp, 134 bool skip_empty); 135 136 struct evsel *perf_session__find_first_evtype(struct perf_session *session, 137 unsigned int type); 138 139 int perf_session__cpu_bitmap(struct perf_session *session, 140 const char *cpu_list, unsigned long *cpu_bitmap); 141 142 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full); 143 144 struct evsel_str_handler; 145 146 #define perf_session__set_tracepoints_handlers(session, array) \ 147 __evlist__set_tracepoints_handlers(session->evlist, array, ARRAY_SIZE(array)) 148 149 extern volatile int session_done; 150 151 #define session_done() READ_ONCE(session_done) 152 153 int perf_session__deliver_synth_event(struct perf_session *session, 154 union perf_event *event, 155 struct perf_sample *sample); 156 157 int perf_event__process_id_index(struct perf_session *session, 158 union perf_event *event); 159 160 int perf_event__process_finished_round(struct perf_tool *tool, 161 union perf_event *event, 162 struct ordered_events *oe); 163 164 #endif /* __PERF_SESSION_H */ 165