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