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 enum perf_header_version { 38 PERF_HEADER_VERSION_1, 39 PERF_HEADER_VERSION_2, 40 }; 41 42 struct perf_file_section { 43 u64 offset; 44 u64 size; 45 }; 46 47 struct perf_file_header { 48 u64 magic; 49 u64 size; 50 u64 attr_size; 51 struct perf_file_section attrs; 52 struct perf_file_section data; 53 /* event_types is ignored */ 54 struct perf_file_section event_types; 55 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 56 }; 57 58 struct perf_pipe_file_header { 59 u64 magic; 60 u64 size; 61 }; 62 63 struct perf_header; 64 65 int perf_file_header__read(struct perf_file_header *header, 66 struct perf_header *ph, int fd); 67 68 struct perf_session_env { 69 char *hostname; 70 char *os_release; 71 char *version; 72 char *arch; 73 int nr_cpus_online; 74 int nr_cpus_avail; 75 char *cpu_desc; 76 char *cpuid; 77 unsigned long long total_mem; 78 79 int nr_cmdline; 80 char *cmdline; 81 int nr_sibling_cores; 82 char *sibling_cores; 83 int nr_sibling_threads; 84 char *sibling_threads; 85 int nr_numa_nodes; 86 char *numa_nodes; 87 int nr_pmu_mappings; 88 char *pmu_mappings; 89 int nr_groups; 90 }; 91 92 struct perf_header { 93 enum perf_header_version version; 94 bool needs_swap; 95 u64 data_offset; 96 u64 data_size; 97 u64 feat_offset; 98 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 99 struct perf_session_env env; 100 }; 101 102 struct perf_evlist; 103 struct perf_session; 104 105 int perf_session__read_header(struct perf_session *session); 106 int perf_session__write_header(struct perf_session *session, 107 struct perf_evlist *evlist, 108 int fd, bool at_exit); 109 int perf_header__write_pipe(int fd); 110 111 void perf_header__set_feat(struct perf_header *header, int feat); 112 void perf_header__clear_feat(struct perf_header *header, int feat); 113 bool perf_header__has_feat(const struct perf_header *header, int feat); 114 115 int perf_header__set_cmdline(int argc, const char **argv); 116 117 int perf_header__process_sections(struct perf_header *header, int fd, 118 void *data, 119 int (*process)(struct perf_file_section *section, 120 struct perf_header *ph, 121 int feat, int fd, void *data)); 122 123 int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full); 124 125 int build_id_cache__add_s(const char *sbuild_id, const char *debugdir, 126 const char *name, bool is_kallsyms, bool is_vdso); 127 int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir); 128 129 int perf_event__synthesize_attr(struct perf_tool *tool, 130 struct perf_event_attr *attr, u32 ids, u64 *id, 131 perf_event__handler_t process); 132 int perf_event__synthesize_attrs(struct perf_tool *tool, 133 struct perf_session *session, 134 perf_event__handler_t process); 135 int perf_event__process_attr(struct perf_tool *tool, union perf_event *event, 136 struct perf_evlist **pevlist); 137 138 int perf_event__synthesize_tracing_data(struct perf_tool *tool, 139 int fd, struct perf_evlist *evlist, 140 perf_event__handler_t process); 141 int perf_event__process_tracing_data(struct perf_tool *tool, 142 union perf_event *event, 143 struct perf_session *session); 144 145 int perf_event__synthesize_build_id(struct perf_tool *tool, 146 struct dso *pos, u16 misc, 147 perf_event__handler_t process, 148 struct machine *machine); 149 int perf_event__process_build_id(struct perf_tool *tool, 150 union perf_event *event, 151 struct perf_session *session); 152 bool is_perf_magic(u64 magic); 153 154 /* 155 * arch specific callback 156 */ 157 int get_cpuid(char *buffer, size_t sz); 158 159 #endif /* __PERF_HEADER_H */ 160