tools/perf/util/header.h

   1 #ifndef __PERF_HEADER_H
   2 #define __PERF_HEADER_H
   3
   4 #include "../../../include/linux/perf_event.h"
   5 #include <sys/types.h>
   6 #include <stdbool.h>
   7 #include "types.h"
   8 #include "event.h"
   9
  10 #include <linux/bitmap.h>
  11
  12 enum {
  13         HEADER_RESERVED         = 0,    /* always cleared */
  14         HEADER_TRACE_INFO       = 1,
  15         HEADER_BUILD_ID,
  16
  17         HEADER_HOSTNAME,
  18         HEADER_OSRELEASE,
  19         HEADER_VERSION,
  20         HEADER_ARCH,
  21         HEADER_NRCPUS,
  22         HEADER_CPUDESC,
  23         HEADER_CPUID,
  24         HEADER_TOTAL_MEM,
  25         HEADER_CMDLINE,
  26         HEADER_EVENT_DESC,
  27         HEADER_CPU_TOPOLOGY,
  28         HEADER_NUMA_TOPOLOGY,
  29
  30         HEADER_LAST_FEATURE,
  31         HEADER_FEAT_BITS        = 256,
  32 };
  33
  34 struct perf_file_section {
  35         u64 offset;
  36         u64 size;
  37 };
  38
  39 struct perf_file_header {
  40         u64                             magic;
  41         u64                             size;
  42         u64                             attr_size;
  43         struct perf_file_section        attrs;
  44         struct perf_file_section        data;
  45         struct perf_file_section        event_types;
  46         DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
  47 };
  48
  49 struct perf_pipe_file_header {
  50         u64                             magic;
  51         u64                             size;
  52 };
  53
  54 struct perf_header;
  55
  56 int perf_file_header__read(struct perf_file_header *header,
  57                            struct perf_header *ph, int fd);
  58
  59 struct perf_header {
  60         int                     frozen;
  61         bool                    needs_swap;
  62         s64                     attr_offset;
  63         u64                     data_offset;
  64         u64                     data_size;
  65         u64                     event_offset;
  66         u64                     event_size;
  67         DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
  68 };
  69
  70 struct perf_evlist;
  71 struct perf_session;
  72
  73 int perf_session__read_header(struct perf_session *session, int fd);
  74 int perf_session__write_header(struct perf_session *session,
  75                                struct perf_evlist *evlist,
  76                                int fd, bool at_exit);
  77 int perf_header__write_pipe(int fd);
  78
  79 int perf_header__push_event(u64 id, const char *name);
  80 char *perf_header__find_event(u64 id);
  81
  82 void perf_header__set_feat(struct perf_header *header, int feat);
  83 void perf_header__clear_feat(struct perf_header *header, int feat);
  84 bool perf_header__has_feat(const struct perf_header *header, int feat);
  85
  86 int perf_header__set_cmdline(int argc, const char **argv);
  87
  88 int perf_header__process_sections(struct perf_header *header, int fd,
  89                                   void *data,
  90                                   int (*process)(struct perf_file_section *section,
  91                                   struct perf_header *ph,
  92                                   int feat, int fd, void *data));
  93
  94 int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
  95
  96 int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
  97                           const char *name, bool is_kallsyms);
  98 int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
  99
 100 int perf_event__synthesize_attr(struct perf_tool *tool,
 101                                 struct perf_event_attr *attr, u16 ids, u64 *id,
 102                                 perf_event__handler_t process);
 103 int perf_event__synthesize_attrs(struct perf_tool *tool,
 104                                  struct perf_session *session,
 105                                  perf_event__handler_t process);
 106 int perf_event__process_attr(union perf_event *event, struct perf_evlist **pevlist);
 107
 108 int perf_event__synthesize_event_type(struct perf_tool *tool,
 109                                       u64 event_id, char *name,
 110                                       perf_event__handler_t process,
 111                                       struct machine *machine);
 112 int perf_event__synthesize_event_types(struct perf_tool *tool,
 113                                        perf_event__handler_t process,
 114                                        struct machine *machine);
 115 int perf_event__process_event_type(struct perf_tool *tool,
 116                                    union perf_event *event);
 117
 118 int perf_event__synthesize_tracing_data(struct perf_tool *tool,
 119                                         int fd, struct perf_evlist *evlist,
 120                                         perf_event__handler_t process);
 121 int perf_event__process_tracing_data(union perf_event *event,
 122                                      struct perf_session *session);
 123
 124 int perf_event__synthesize_build_id(struct perf_tool *tool,
 125                                     struct dso *pos, u16 misc,
 126                                     perf_event__handler_t process,
 127                                     struct machine *machine);
 128 int perf_event__process_build_id(struct perf_tool *tool,
 129                                  union perf_event *event,
 130                                  struct perf_session *session);
 131
 132 /*
 133  * arch specific callback
 134  */
 135 int get_cpuid(char *buffer, size_t sz);
 136
 137 #endif /* __PERF_HEADER_H */