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_CACHE, 36 HEADER_LAST_FEATURE, 37 HEADER_FEAT_BITS = 256, 38 }; 39 40 enum perf_header_version { 41 PERF_HEADER_VERSION_1, 42 PERF_HEADER_VERSION_2, 43 }; 44 45 struct perf_file_section { 46 u64 offset; 47 u64 size; 48 }; 49 50 struct perf_file_header { 51 u64 magic; 52 u64 size; 53 u64 attr_size; 54 struct perf_file_section attrs; 55 struct perf_file_section data; 56 /* event_types is ignored */ 57 struct perf_file_section event_types; 58 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 59 }; 60 61 struct perf_pipe_file_header { 62 u64 magic; 63 u64 size; 64 }; 65 66 struct perf_header; 67 68 int perf_file_header__read(struct perf_file_header *header, 69 struct perf_header *ph, int fd); 70 71 struct perf_header { 72 enum perf_header_version version; 73 bool needs_swap; 74 u64 data_offset; 75 u64 data_size; 76 u64 feat_offset; 77 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 78 struct perf_env env; 79 }; 80 81 struct perf_evlist; 82 struct perf_session; 83 84 int perf_session__read_header(struct perf_session *session); 85 int perf_session__write_header(struct perf_session *session, 86 struct perf_evlist *evlist, 87 int fd, bool at_exit); 88 int perf_header__write_pipe(int fd); 89 90 void perf_header__set_feat(struct perf_header *header, int feat); 91 void perf_header__clear_feat(struct perf_header *header, int feat); 92 bool perf_header__has_feat(const struct perf_header *header, int feat); 93 94 int perf_header__set_cmdline(int argc, const char **argv); 95 96 int perf_header__process_sections(struct perf_header *header, int fd, 97 void *data, 98 int (*process)(struct perf_file_section *section, 99 struct perf_header *ph, 100 int feat, int fd, void *data)); 101 102 int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full); 103 104 int perf_event__synthesize_attr(struct perf_tool *tool, 105 struct perf_event_attr *attr, u32 ids, u64 *id, 106 perf_event__handler_t process); 107 int perf_event__synthesize_attrs(struct perf_tool *tool, 108 struct perf_session *session, 109 perf_event__handler_t process); 110 int perf_event__synthesize_event_update_unit(struct perf_tool *tool, 111 struct perf_evsel *evsel, 112 perf_event__handler_t process); 113 int perf_event__synthesize_event_update_scale(struct perf_tool *tool, 114 struct perf_evsel *evsel, 115 perf_event__handler_t process); 116 int perf_event__synthesize_event_update_name(struct perf_tool *tool, 117 struct perf_evsel *evsel, 118 perf_event__handler_t process); 119 int perf_event__synthesize_event_update_cpus(struct perf_tool *tool, 120 struct perf_evsel *evsel, 121 perf_event__handler_t process); 122 int perf_event__process_attr(struct perf_tool *tool, union perf_event *event, 123 struct perf_evlist **pevlist); 124 int perf_event__process_event_update(struct perf_tool *tool, 125 union perf_event *event, 126 struct perf_evlist **pevlist); 127 size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp); 128 129 int perf_event__synthesize_tracing_data(struct perf_tool *tool, 130 int fd, struct perf_evlist *evlist, 131 perf_event__handler_t process); 132 int perf_event__process_tracing_data(struct perf_tool *tool, 133 union perf_event *event, 134 struct perf_session *session); 135 136 int perf_event__synthesize_build_id(struct perf_tool *tool, 137 struct dso *pos, u16 misc, 138 perf_event__handler_t process, 139 struct machine *machine); 140 int perf_event__process_build_id(struct perf_tool *tool, 141 union perf_event *event, 142 struct perf_session *session); 143 bool is_perf_magic(u64 magic); 144 145 #define NAME_ALIGN 64 146 147 int write_padded(int fd, const void *bf, size_t count, size_t count_aligned); 148 149 /* 150 * arch specific callback 151 */ 152 int get_cpuid(char *buffer, size_t sz); 153 154 #endif /* __PERF_HEADER_H */ 155