tools/perf/util/session.h

   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 perf_session {
  24         struct perf_header      header;
  25         struct machines         machines;
  26         struct evlist   *evlist;
  27         struct auxtrace         *auxtrace;
  28         struct itrace_synth_opts *itrace_synth_opts;
  29         struct list_head        auxtrace_index;
  30         struct trace_event      tevent;
  31         struct perf_record_time_conv    time_conv;
  32         bool                    repipe;
  33         bool                    one_mmap;
  34         void                    *one_mmap_addr;
  35         u64                     one_mmap_offset;
  36         struct ordered_events   ordered_events;
  37         struct perf_data        *data;
  38         struct perf_tool        *tool;
  39         u64                     bytes_transferred;
  40         u64                     bytes_compressed;
  41         struct zstd_data        zstd_data;
  42         struct decomp           *decomp;
  43         struct decomp           *decomp_last;
  44 };
  45
  46 struct decomp {
  47         struct decomp *next;
  48         u64 file_pos;
  49         size_t mmap_len;
  50         u64 head;
  51         size_t size;
  52         char data[];
  53 };
  54
  55 struct perf_tool;
  56
  57 struct perf_session *perf_session__new(struct perf_data *data,
  58                                        bool repipe, struct perf_tool *tool);
  59 void perf_session__delete(struct perf_session *session);
  60
  61 void perf_event_header__bswap(struct perf_event_header *hdr);
  62
  63 int perf_session__peek_event(struct perf_session *session, off_t file_offset,
  64                              void *buf, size_t buf_sz,
  65                              union perf_event **event_ptr,
  66                              struct perf_sample *sample);
  67
  68 int perf_session__process_events(struct perf_session *session);
  69
  70 int perf_session__queue_event(struct perf_session *s, union perf_event *event,
  71                               u64 timestamp, u64 file_offset);
  72
  73 void perf_tool__fill_defaults(struct perf_tool *tool);
  74
  75 int perf_session__resolve_callchain(struct perf_session *session,
  76                                     struct evsel *evsel,
  77                                     struct thread *thread,
  78                                     struct ip_callchain *chain,
  79                                     struct symbol **parent);
  80
  81 bool perf_session__has_traces(struct perf_session *session, const char *msg);
  82
  83 void perf_event__attr_swap(struct perf_event_attr *attr);
  84
  85 int perf_session__create_kernel_maps(struct perf_session *session);
  86
  87 void perf_session__set_id_hdr_size(struct perf_session *session);
  88
  89 static inline
  90 struct machine *perf_session__find_machine(struct perf_session *session, pid_t pid)
  91 {
  92         return machines__find(&session->machines, pid);
  93 }
  94
  95 static inline
  96 struct machine *perf_session__findnew_machine(struct perf_session *session, pid_t pid)
  97 {
  98         return machines__findnew(&session->machines, pid);
  99 }
 100
 101 struct thread *perf_session__findnew(struct perf_session *session, pid_t pid);
 102 int perf_session__register_idle_thread(struct perf_session *session);
 103
 104 size_t perf_session__fprintf(struct perf_session *session, FILE *fp);
 105
 106 size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp);
 107
 108 size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
 109                                           bool (fn)(struct dso *dso, int parm), int parm);
 110
 111 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
 112
 113 struct evsel *perf_session__find_first_evtype(struct perf_session *session,
 114                                             unsigned int type);
 115
 116 int perf_session__cpu_bitmap(struct perf_session *session,
 117                              const char *cpu_list, unsigned long *cpu_bitmap);
 118
 119 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
 120
 121 struct evsel_str_handler;
 122
 123 int __perf_session__set_tracepoints_handlers(struct perf_session *session,
 124                                              const struct evsel_str_handler *assocs,
 125                                              size_t nr_assocs);
 126
 127 #define perf_session__set_tracepoints_handlers(session, array) \
 128         __perf_session__set_tracepoints_handlers(session, array, ARRAY_SIZE(array))
 129
 130 extern volatile int session_done;
 131
 132 #define session_done()  READ_ONCE(session_done)
 133
 134 int perf_session__deliver_synth_event(struct perf_session *session,
 135                                       union perf_event *event,
 136                                       struct perf_sample *sample);
 137
 138 int perf_event__process_id_index(struct perf_session *session,
 139                                  union perf_event *event);
 140
 141 #endif /* __PERF_SESSION_H */