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_TRACE_INFO = 1,
  14         HEADER_BUILD_ID,
  15
  16         HEADER_HOSTNAME,
  17         HEADER_OSRELEASE,
  18         HEADER_VERSION,
  19         HEADER_ARCH,
  20         HEADER_NRCPUS,
  21         HEADER_CPUDESC,
  22         HEADER_CPUID,
  23         HEADER_TOTAL_MEM,
  24         HEADER_CMDLINE,
  25         HEADER_EVENT_DESC,
  26         HEADER_CPU_TOPOLOGY,
  27         HEADER_NUMA_TOPOLOGY,
  28
  29         HEADER_LAST_FEATURE,
  30 };
  31
  32 #define HEADER_FEAT_BITS                        256
  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
  72 int perf_session__read_header(struct perf_session *session, int fd);
  73 int perf_session__write_header(struct perf_session *session,
  74                                struct perf_evlist *evlist,
  75                                int fd, bool at_exit);
  76 int perf_header__write_pipe(int fd);
  77
  78 int perf_header__push_event(u64 id, const char *name);
  79 char *perf_header__find_event(u64 id);
  80
  81 void perf_header__set_feat(struct perf_header *header, int feat);
  82 void perf_header__clear_feat(struct perf_header *header, int feat);
  83 bool perf_header__has_feat(const struct perf_header *header, int feat);
  84
  85 int perf_header__set_cmdline(int argc, const char **argv);
  86
  87 int perf_header__process_sections(struct perf_header *header, int fd,
  88                                   void *data,
  89                                   int (*process)(struct perf_file_section *section,
  90                                   struct perf_header *ph,
  91                                   int feat, int fd, void *data));
  92
  93 int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
  94
  95 int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
  96                           const char *name, bool is_kallsyms);
  97 int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
  98
  99 int perf_event__synthesize_attr(struct perf_event_attr *attr, u16 ids, u64 *id,
 100                                 perf_event__handler_t process,
 101                                 struct perf_session *session);
 102 int perf_session__synthesize_attrs(struct perf_session *session,
 103                                    perf_event__handler_t process);
 104 int perf_event__process_attr(union perf_event *event, struct perf_session *session);
 105
 106 int perf_event__synthesize_event_type(u64 event_id, char *name,
 107                                       perf_event__handler_t process,
 108                                       struct perf_session *session);
 109 int perf_event__synthesize_event_types(perf_event__handler_t process,
 110                                        struct perf_session *session);
 111 int perf_event__process_event_type(union perf_event *event,
 112                                    struct perf_session *session);
 113
 114 int perf_event__synthesize_tracing_data(int fd, struct perf_evlist *evlist,
 115                                         perf_event__handler_t process,
 116                                         struct perf_session *session);
 117 int perf_event__process_tracing_data(union perf_event *event,
 118                                      struct perf_session *session);
 119
 120 int perf_event__synthesize_build_id(struct dso *pos, u16 misc,
 121                                     perf_event__handler_t process,
 122                                     struct machine *machine,
 123                                     struct perf_session *session);
 124 int perf_event__process_build_id(union perf_event *event,
 125                                  struct perf_session *session);
 126
 127 /*
 128  * arch specific callback
 129  */
 130 int get_cpuid(char *buffer, size_t sz);
 131
 132 #endif /* __PERF_HEADER_H */