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_FIRST_FEATURE    = 1,
  15         HEADER_TRACING_DATA     = 1,
  16         HEADER_BUILD_ID,
  17
  18         HEADER_HOSTNAME,
  19         HEADER_OSRELEASE,
  20         HEADER_VERSION,
  21         HEADER_ARCH,
  22         HEADER_NRCPUS,
  23         HEADER_CPUDESC,
  24         HEADER_CPUID,
  25         HEADER_TOTAL_MEM,
  26         HEADER_CMDLINE,
  27         HEADER_EVENT_DESC,
  28         HEADER_CPU_TOPOLOGY,
  29         HEADER_NUMA_TOPOLOGY,
  30         HEADER_BRANCH_STACK,
  31         HEADER_PMU_MAPPINGS,
  32         HEADER_LAST_FEATURE,
  33         HEADER_FEAT_BITS        = 256,
  34 };
  35
  36 struct perf_file_section {
  37         u64 offset;
  38         u64 size;
  39 };
  40
  41 struct perf_file_header {
  42         u64                             magic;
  43         u64                             size;
  44         u64                             attr_size;
  45         struct perf_file_section        attrs;
  46         struct perf_file_section        data;
  47         struct perf_file_section        event_types;
  48         DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
  49 };
  50
  51 struct perf_pipe_file_header {
  52         u64                             magic;
  53         u64                             size;
  54 };
  55
  56 struct perf_header;
  57
  58 int perf_file_header__read(struct perf_file_header *header,
  59                            struct perf_header *ph, int fd);
  60
  61 struct perf_header {
  62         int                     frozen;
  63         bool                    needs_swap;
  64         s64                     attr_offset;
  65         u64                     data_offset;
  66         u64                     data_size;
  67         u64                     event_offset;
  68         u64                     event_size;
  69         DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
  70 };
  71
  72 struct perf_evlist;
  73 struct perf_session;
  74
  75 int perf_session__read_header(struct perf_session *session, int fd);
  76 int perf_session__write_header(struct perf_session *session,
  77                                struct perf_evlist *evlist,
  78                                int fd, bool at_exit);
  79 int perf_header__write_pipe(int fd);
  80
  81 int perf_header__push_event(u64 id, const char *name);
  82 char *perf_header__find_event(u64 id);
  83
  84 void perf_header__set_feat(struct perf_header *header, int feat);
  85 void perf_header__clear_feat(struct perf_header *header, int feat);
  86 bool perf_header__has_feat(const struct perf_header *header, int feat);
  87
  88 int perf_header__set_cmdline(int argc, const char **argv);
  89
  90 int perf_header__process_sections(struct perf_header *header, int fd,
  91                                   void *data,
  92                                   int (*process)(struct perf_file_section *section,
  93                                   struct perf_header *ph,
  94                                   int feat, int fd, void *data));
  95
  96 int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
  97 char *perf_header__read_feature(struct perf_session *session, int feat);
  98
  99 int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
 100                           const char *name, bool is_kallsyms, bool is_vdso);
 101 int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
 102
 103 int perf_event__synthesize_attr(struct perf_tool *tool,
 104                                 struct perf_event_attr *attr, u32 ids, u64 *id,
 105                                 perf_event__handler_t process);
 106 int perf_event__synthesize_attrs(struct perf_tool *tool,
 107                                  struct perf_session *session,
 108                                  perf_event__handler_t process);
 109 int perf_event__process_attr(union perf_event *event, struct perf_evlist **pevlist);
 110
 111 int perf_event__synthesize_event_type(struct perf_tool *tool,
 112                                       u64 event_id, char *name,
 113                                       perf_event__handler_t process,
 114                                       struct machine *machine);
 115 int perf_event__synthesize_event_types(struct perf_tool *tool,
 116                                        perf_event__handler_t process,
 117                                        struct machine *machine);
 118 int perf_event__process_event_type(struct perf_tool *tool,
 119                                    union perf_event *event);
 120
 121 int perf_event__synthesize_tracing_data(struct perf_tool *tool,
 122                                         int fd, struct perf_evlist *evlist,
 123                                         perf_event__handler_t process);
 124 int perf_event__process_tracing_data(union perf_event *event,
 125                                      struct perf_session *session);
 126
 127 int perf_event__synthesize_build_id(struct perf_tool *tool,
 128                                     struct dso *pos, u16 misc,
 129                                     perf_event__handler_t process,
 130                                     struct machine *machine);
 131 int perf_event__process_build_id(struct perf_tool *tool,
 132                                  union perf_event *event,
 133                                  struct perf_session *session);
 134
 135 /*
 136  * arch specific callback
 137  */
 138 int get_cpuid(char *buffer, size_t sz);
 139
 140 #endif /* __PERF_HEADER_H */