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 perf_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 time_conv_event  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         u64 head;
  50         size_t size;
  51         char data[];
  52 };
  53
  54 struct perf_tool;
  55
  56 struct perf_session *perf_session__new(struct perf_data *data,
  57                                        bool repipe, struct perf_tool *tool);
  58 void perf_session__delete(struct perf_session *session);
  59
  60 void perf_event_header__bswap(struct perf_event_header *hdr);
  61
  62 int perf_session__peek_event(struct perf_session *session, off_t file_offset,
  63                              void *buf, size_t buf_sz,
  64                              union perf_event **event_ptr,
  65                              struct perf_sample *sample);
  66
  67 int perf_session__process_events(struct perf_session *session);
  68
  69 int perf_session__queue_event(struct perf_session *s, union perf_event *event,
  70                               u64 timestamp, u64 file_offset);
  71
  72 void perf_tool__fill_defaults(struct perf_tool *tool);
  73
  74 int perf_session__resolve_callchain(struct perf_session *session,
  75                                     struct perf_evsel *evsel,
  76                                     struct thread *thread,
  77                                     struct ip_callchain *chain,
  78                                     struct symbol **parent);
  79
  80 bool perf_session__has_traces(struct perf_session *session, const char *msg);
  81
  82 void perf_event__attr_swap(struct perf_event_attr *attr);
  83
  84 int perf_session__create_kernel_maps(struct perf_session *session);
  85
  86 void perf_session__set_id_hdr_size(struct perf_session *session);
  87
  88 static inline
  89 struct machine *perf_session__find_machine(struct perf_session *session, pid_t pid)
  90 {
  91         return machines__find(&session->machines, pid);
  92 }
  93
  94 static inline
  95 struct machine *perf_session__findnew_machine(struct perf_session *session, pid_t pid)
  96 {
  97         return machines__findnew(&session->machines, pid);
  98 }
  99
 100 struct thread *perf_session__findnew(struct perf_session *session, pid_t pid);
 101 int perf_session__register_idle_thread(struct perf_session *session);
 102
 103 size_t perf_session__fprintf(struct perf_session *session, FILE *fp);
 104
 105 size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp);
 106
 107 size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
 108                                           bool (fn)(struct dso *dso, int parm), int parm);
 109
 110 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
 111
 112 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 113                                             unsigned int type);
 114
 115 int perf_session__cpu_bitmap(struct perf_session *session,
 116                              const char *cpu_list, unsigned long *cpu_bitmap);
 117
 118 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
 119
 120 struct perf_evsel_str_handler;
 121
 122 int __perf_session__set_tracepoints_handlers(struct perf_session *session,
 123                                              const struct perf_evsel_str_handler *assocs,
 124                                              size_t nr_assocs);
 125
 126 #define perf_session__set_tracepoints_handlers(session, array) \
 127         __perf_session__set_tracepoints_handlers(session, array, ARRAY_SIZE(array))
 128
 129 extern volatile int session_done;
 130
 131 #define session_done()  READ_ONCE(session_done)
 132
 133 int perf_session__deliver_synth_event(struct perf_session *session,
 134                                       union perf_event *event,
 135                                       struct perf_sample *sample);
 136
 137 int perf_event__process_id_index(struct perf_session *session,
 138                                  union perf_event *event);
 139
 140 int perf_event__synthesize_id_index(struct perf_tool *tool,
 141                                     perf_event__handler_t process,
 142                                     struct perf_evlist *evlist,
 143                                     struct machine *machine);
 144
 145 #endif /* __PERF_SESSION_H */