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 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_LAST_FEATURE, 35 HEADER_FEAT_BITS = 256, 36 }; 37 38 enum perf_header_version { 39 PERF_HEADER_VERSION_1, 40 PERF_HEADER_VERSION_2, 41 }; 42 43 struct perf_file_section { 44 u64 offset; 45 u64 size; 46 }; 47 48 struct perf_file_header { 49 u64 magic; 50 u64 size; 51 u64 attr_size; 52 struct perf_file_section attrs; 53 struct perf_file_section data; 54 /* event_types is ignored */ 55 struct perf_file_section event_types; 56 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 57 }; 58 59 struct perf_pipe_file_header { 60 u64 magic; 61 u64 size; 62 }; 63 64 struct perf_header; 65 66 int perf_file_header__read(struct perf_file_header *header, 67 struct perf_header *ph, int fd); 68 69 struct cpu_topology_map { 70 int socket_id; 71 int core_id; 72 }; 73 74 struct perf_env { 75 char *hostname; 76 char *os_release; 77 char *version; 78 char *arch; 79 int nr_cpus_online; 80 int nr_cpus_avail; 81 char *cpu_desc; 82 char *cpuid; 83 unsigned long long total_mem; 84 85 int nr_cmdline; 86 int nr_sibling_cores; 87 int nr_sibling_threads; 88 int nr_numa_nodes; 89 int nr_pmu_mappings; 90 int nr_groups; 91 char *cmdline; 92 const char **cmdline_argv; 93 char *sibling_cores; 94 char *sibling_threads; 95 char *numa_nodes; 96 char *pmu_mappings; 97 struct cpu_topology_map *cpu; 98 }; 99 100 struct perf_header { 101 enum perf_header_version version; 102 bool needs_swap; 103 u64 data_offset; 104 u64 data_size; 105 u64 feat_offset; 106 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 107 struct perf_env env; 108 }; 109 110 struct perf_evlist; 111 struct perf_session; 112 113 int perf_session__read_header(struct perf_session *session); 114 int perf_session__write_header(struct perf_session *session, 115 struct perf_evlist *evlist, 116 int fd, bool at_exit); 117 int perf_header__write_pipe(int fd); 118 119 void perf_header__set_feat(struct perf_header *header, int feat); 120 void perf_header__clear_feat(struct perf_header *header, int feat); 121 bool perf_header__has_feat(const struct perf_header *header, int feat); 122 123 int perf_header__set_cmdline(int argc, const char **argv); 124 125 int perf_header__process_sections(struct perf_header *header, int fd, 126 void *data, 127 int (*process)(struct perf_file_section *section, 128 struct perf_header *ph, 129 int feat, int fd, void *data)); 130 131 int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full); 132 133 int perf_event__synthesize_attr(struct perf_tool *tool, 134 struct perf_event_attr *attr, u32 ids, u64 *id, 135 perf_event__handler_t process); 136 int perf_event__synthesize_attrs(struct perf_tool *tool, 137 struct perf_session *session, 138 perf_event__handler_t process); 139 int perf_event__process_attr(struct perf_tool *tool, union perf_event *event, 140 struct perf_evlist **pevlist); 141 142 int perf_event__synthesize_tracing_data(struct perf_tool *tool, 143 int fd, struct perf_evlist *evlist, 144 perf_event__handler_t process); 145 int perf_event__process_tracing_data(struct perf_tool *tool, 146 union perf_event *event, 147 struct perf_session *session); 148 149 int perf_event__synthesize_build_id(struct perf_tool *tool, 150 struct dso *pos, u16 misc, 151 perf_event__handler_t process, 152 struct machine *machine); 153 int perf_event__process_build_id(struct perf_tool *tool, 154 union perf_event *event, 155 struct perf_session *session); 156 bool is_perf_magic(u64 magic); 157 158 #define NAME_ALIGN 64 159 160 int write_padded(int fd, const void *bf, size_t count, size_t count_aligned); 161 162 /* 163 * arch specific callback 164 */ 165 int get_cpuid(char *buffer, size_t sz); 166 167 #endif /* __PERF_HEADER_H */ 168