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 #include "env.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_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_header { 70 enum perf_header_version version; 71 bool needs_swap; 72 u64 data_offset; 73 u64 data_size; 74 u64 feat_offset; 75 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 76 struct perf_env env; 77 }; 78 79 struct perf_evlist; 80 struct perf_session; 81 82 int perf_session__read_header(struct perf_session *session); 83 int perf_session__write_header(struct perf_session *session, 84 struct perf_evlist *evlist, 85 int fd, bool at_exit); 86 int perf_header__write_pipe(int fd); 87 88 void perf_header__set_feat(struct perf_header *header, int feat); 89 void perf_header__clear_feat(struct perf_header *header, int feat); 90 bool perf_header__has_feat(const struct perf_header *header, int feat); 91 92 int perf_header__set_cmdline(int argc, const char **argv); 93 94 int perf_header__process_sections(struct perf_header *header, int fd, 95 void *data, 96 int (*process)(struct perf_file_section *section, 97 struct perf_header *ph, 98 int feat, int fd, void *data)); 99 100 int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full); 101 102 int perf_event__synthesize_attr(struct perf_tool *tool, 103 struct perf_event_attr *attr, u32 ids, u64 *id, 104 perf_event__handler_t process); 105 int perf_event__synthesize_attrs(struct perf_tool *tool, 106 struct perf_session *session, 107 perf_event__handler_t process); 108 int perf_event__process_attr(struct perf_tool *tool, union perf_event *event, 109 struct perf_evlist **pevlist); 110 111 int perf_event__synthesize_tracing_data(struct perf_tool *tool, 112 int fd, struct perf_evlist *evlist, 113 perf_event__handler_t process); 114 int perf_event__process_tracing_data(struct perf_tool *tool, 115 union perf_event *event, 116 struct perf_session *session); 117 118 int perf_event__synthesize_build_id(struct perf_tool *tool, 119 struct dso *pos, u16 misc, 120 perf_event__handler_t process, 121 struct machine *machine); 122 int perf_event__process_build_id(struct perf_tool *tool, 123 union perf_event *event, 124 struct perf_session *session); 125 bool is_perf_magic(u64 magic); 126 127 #define NAME_ALIGN 64 128 129 int write_padded(int fd, const void *bf, size_t count, size_t count_aligned); 130 131 /* 132 * arch specific callback 133 */ 134 int get_cpuid(char *buffer, size_t sz); 135 136 #endif /* __PERF_HEADER_H */ 137