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 "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_GROUP_DESC, 33 HEADER_LAST_FEATURE, 34 HEADER_FEAT_BITS = 256, 35 }; 36 37 struct perf_file_section { 38 u64 offset; 39 u64 size; 40 }; 41 42 struct perf_file_header { 43 u64 magic; 44 u64 size; 45 u64 attr_size; 46 struct perf_file_section attrs; 47 struct perf_file_section data; 48 struct perf_file_section event_types; 49 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 50 }; 51 52 struct perf_pipe_file_header { 53 u64 magic; 54 u64 size; 55 }; 56 57 struct perf_header; 58 59 int perf_file_header__read(struct perf_file_header *header, 60 struct perf_header *ph, int fd); 61 62 struct perf_session_env { 63 char *hostname; 64 char *os_release; 65 char *version; 66 char *arch; 67 int nr_cpus_online; 68 int nr_cpus_avail; 69 char *cpu_desc; 70 char *cpuid; 71 unsigned long long total_mem; 72 73 int nr_cmdline; 74 char *cmdline; 75 int nr_sibling_cores; 76 char *sibling_cores; 77 int nr_sibling_threads; 78 char *sibling_threads; 79 int nr_numa_nodes; 80 char *numa_nodes; 81 int nr_pmu_mappings; 82 char *pmu_mappings; 83 int nr_groups; 84 }; 85 86 struct perf_header { 87 bool needs_swap; 88 s64 attr_offset; 89 u64 data_offset; 90 u64 data_size; 91 u64 event_offset; 92 u64 event_size; 93 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 94 struct perf_session_env env; 95 }; 96 97 struct perf_evlist; 98 struct perf_session; 99 100 int perf_session__read_header(struct perf_session *session, int fd); 101 int perf_session__write_header(struct perf_session *session, 102 struct perf_evlist *evlist, 103 int fd, bool at_exit); 104 int perf_header__write_pipe(int fd); 105 106 int perf_header__push_event(u64 id, const char *name); 107 char *perf_header__find_event(u64 id); 108 109 void perf_header__set_feat(struct perf_header *header, int feat); 110 void perf_header__clear_feat(struct perf_header *header, int feat); 111 bool perf_header__has_feat(const struct perf_header *header, int feat); 112 113 int perf_header__set_cmdline(int argc, const char **argv); 114 115 int perf_header__process_sections(struct perf_header *header, int fd, 116 void *data, 117 int (*process)(struct perf_file_section *section, 118 struct perf_header *ph, 119 int feat, int fd, void *data)); 120 121 int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full); 122 123 int build_id_cache__add_s(const char *sbuild_id, const char *debugdir, 124 const char *name, bool is_kallsyms, bool is_vdso); 125 int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir); 126 127 int perf_event__synthesize_attr(struct perf_tool *tool, 128 struct perf_event_attr *attr, u32 ids, u64 *id, 129 perf_event__handler_t process); 130 int perf_event__synthesize_attrs(struct perf_tool *tool, 131 struct perf_session *session, 132 perf_event__handler_t process); 133 int perf_event__process_attr(union perf_event *event, struct perf_evlist **pevlist); 134 135 int perf_event__synthesize_event_type(struct perf_tool *tool, 136 u64 event_id, char *name, 137 perf_event__handler_t process, 138 struct machine *machine); 139 int perf_event__synthesize_event_types(struct perf_tool *tool, 140 perf_event__handler_t process, 141 struct machine *machine); 142 int perf_event__process_event_type(struct perf_tool *tool, 143 union perf_event *event); 144 145 int perf_event__synthesize_tracing_data(struct perf_tool *tool, 146 int fd, struct perf_evlist *evlist, 147 perf_event__handler_t process); 148 int perf_event__process_tracing_data(union perf_event *event, 149 struct perf_session *session); 150 151 int perf_event__synthesize_build_id(struct perf_tool *tool, 152 struct dso *pos, u16 misc, 153 perf_event__handler_t process, 154 struct machine *machine); 155 int perf_event__process_build_id(struct perf_tool *tool, 156 union perf_event *event, 157 struct perf_session *session); 158 bool is_perf_magic(u64 magic); 159 160 /* 161 * arch specific callback 162 */ 163 int get_cpuid(char *buffer, size_t sz); 164 165 #endif /* __PERF_HEADER_H */ 166