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 perf_session_env { 70 char *hostname; 71 char *os_release; 72 char *version; 73 char *arch; 74 int nr_cpus_online; 75 int nr_cpus_avail; 76 char *cpu_desc; 77 char *cpuid; 78 unsigned long long total_mem; 79 80 int nr_cmdline; 81 int nr_sibling_cores; 82 int nr_sibling_threads; 83 int nr_numa_nodes; 84 int nr_pmu_mappings; 85 int nr_groups; 86 char *cmdline; 87 char *sibling_cores; 88 char *sibling_threads; 89 char *numa_nodes; 90 char *pmu_mappings; 91 }; 92 93 struct perf_header { 94 enum perf_header_version version; 95 bool needs_swap; 96 u64 data_offset; 97 u64 data_size; 98 u64 feat_offset; 99 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 100 struct perf_session_env env; 101 }; 102 103 struct perf_evlist; 104 struct perf_session; 105 106 int perf_session__read_header(struct perf_session *session); 107 int perf_session__write_header(struct perf_session *session, 108 struct perf_evlist *evlist, 109 int fd, bool at_exit); 110 int perf_header__write_pipe(int fd); 111 112 void perf_header__set_feat(struct perf_header *header, int feat); 113 void perf_header__clear_feat(struct perf_header *header, int feat); 114 bool perf_header__has_feat(const struct perf_header *header, int feat); 115 116 int perf_header__set_cmdline(int argc, const char **argv); 117 118 int perf_header__process_sections(struct perf_header *header, int fd, 119 void *data, 120 int (*process)(struct perf_file_section *section, 121 struct perf_header *ph, 122 int feat, int fd, void *data)); 123 124 int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full); 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(struct perf_tool *tool, union perf_event *event, 133 struct perf_evlist **pevlist); 134 135 int perf_event__synthesize_tracing_data(struct perf_tool *tool, 136 int fd, struct perf_evlist *evlist, 137 perf_event__handler_t process); 138 int perf_event__process_tracing_data(struct perf_tool *tool, 139 union perf_event *event, 140 struct perf_session *session); 141 142 int perf_event__synthesize_build_id(struct perf_tool *tool, 143 struct dso *pos, u16 misc, 144 perf_event__handler_t process, 145 struct machine *machine); 146 int perf_event__process_build_id(struct perf_tool *tool, 147 union perf_event *event, 148 struct perf_session *session); 149 bool is_perf_magic(u64 magic); 150 151 #define NAME_ALIGN 64 152 153 int write_padded(int fd, const void *bf, size_t count, size_t count_aligned); 154 155 /* 156 * arch specific callback 157 */ 158 int get_cpuid(char *buffer, size_t sz); 159 160 #endif /* __PERF_HEADER_H */ 161