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