1 #ifndef __PERF_HEADER_H 2 #define __PERF_HEADER_H 3 4 #include <linux/perf_event.h> 5 #include <sys/types.h> 6 #include <stdbool.h> 7 #include <linux/bitmap.h> 8 #include <linux/types.h> 9 #include "event.h" 10 #include "env.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_GROUP_DESC, 33 HEADER_AUXTRACE, 34 HEADER_STAT, 35 HEADER_LAST_FEATURE, 36 HEADER_FEAT_BITS = 256, 37 }; 38 39 enum perf_header_version { 40 PERF_HEADER_VERSION_1, 41 PERF_HEADER_VERSION_2, 42 }; 43 44 struct perf_file_section { 45 u64 offset; 46 u64 size; 47 }; 48 49 struct perf_file_header { 50 u64 magic; 51 u64 size; 52 u64 attr_size; 53 struct perf_file_section attrs; 54 struct perf_file_section data; 55 /* event_types is ignored */ 56 struct perf_file_section event_types; 57 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 58 }; 59 60 struct perf_pipe_file_header { 61 u64 magic; 62 u64 size; 63 }; 64 65 struct perf_header; 66 67 int perf_file_header__read(struct perf_file_header *header, 68 struct perf_header *ph, int fd); 69 70 struct perf_header { 71 enum perf_header_version version; 72 bool needs_swap; 73 u64 data_offset; 74 u64 data_size; 75 u64 feat_offset; 76 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 77 struct perf_env env; 78 }; 79 80 struct perf_evlist; 81 struct perf_session; 82 83 int perf_session__read_header(struct perf_session *session); 84 int perf_session__write_header(struct perf_session *session, 85 struct perf_evlist *evlist, 86 int fd, bool at_exit); 87 int perf_header__write_pipe(int fd); 88 89 void perf_header__set_feat(struct perf_header *header, int feat); 90 void perf_header__clear_feat(struct perf_header *header, int feat); 91 bool perf_header__has_feat(const struct perf_header *header, int feat); 92 93 int perf_header__set_cmdline(int argc, const char **argv); 94 95 int perf_header__process_sections(struct perf_header *header, int fd, 96 void *data, 97 int (*process)(struct perf_file_section *section, 98 struct perf_header *ph, 99 int feat, int fd, void *data)); 100 101 int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full); 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__synthesize_event_update_unit(struct perf_tool *tool, 110 struct perf_evsel *evsel, 111 perf_event__handler_t process); 112 int perf_event__synthesize_event_update_scale(struct perf_tool *tool, 113 struct perf_evsel *evsel, 114 perf_event__handler_t process); 115 int perf_event__synthesize_event_update_name(struct perf_tool *tool, 116 struct perf_evsel *evsel, 117 perf_event__handler_t process); 118 int perf_event__synthesize_event_update_cpus(struct perf_tool *tool, 119 struct perf_evsel *evsel, 120 perf_event__handler_t process); 121 int perf_event__process_attr(struct perf_tool *tool, union perf_event *event, 122 struct perf_evlist **pevlist); 123 int perf_event__process_event_update(struct perf_tool *tool __maybe_unused, 124 union perf_event *event, 125 struct perf_evlist **pevlist); 126 size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp); 127 128 int perf_event__synthesize_tracing_data(struct perf_tool *tool, 129 int fd, struct perf_evlist *evlist, 130 perf_event__handler_t process); 131 int perf_event__process_tracing_data(struct perf_tool *tool, 132 union perf_event *event, 133 struct perf_session *session); 134 135 int perf_event__synthesize_build_id(struct perf_tool *tool, 136 struct dso *pos, u16 misc, 137 perf_event__handler_t process, 138 struct machine *machine); 139 int perf_event__process_build_id(struct perf_tool *tool, 140 union perf_event *event, 141 struct perf_session *session); 142 bool is_perf_magic(u64 magic); 143 144 #define NAME_ALIGN 64 145 146 int write_padded(int fd, const void *bf, size_t count, size_t count_aligned); 147 148 /* 149 * arch specific callback 150 */ 151 int get_cpuid(char *buffer, size_t sz); 152 153 #endif /* __PERF_HEADER_H */ 154