1 #ifndef __PERF_HEADER_H 2 #define __PERF_HEADER_H 3 4 #include "../../../include/linux/perf_event.h" 5 #include <sys/types.h> 6 #include <stdbool.h> 7 #include "types.h" 8 9 #include <linux/bitmap.h> 10 11 struct perf_header_attr { 12 struct perf_event_attr attr; 13 int ids, size; 14 u64 *id; 15 off_t id_offset; 16 }; 17 18 enum { 19 HEADER_TRACE_INFO = 1, 20 HEADER_BUILD_ID, 21 HEADER_LAST_FEATURE, 22 }; 23 24 #define HEADER_FEAT_BITS 256 25 26 struct perf_file_section { 27 u64 offset; 28 u64 size; 29 }; 30 31 struct perf_file_header { 32 u64 magic; 33 u64 size; 34 u64 attr_size; 35 struct perf_file_section attrs; 36 struct perf_file_section data; 37 struct perf_file_section event_types; 38 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 39 }; 40 41 struct perf_header; 42 43 int perf_file_header__read(struct perf_file_header *self, 44 struct perf_header *ph, int fd); 45 46 struct perf_header { 47 int frozen; 48 int attrs, size; 49 struct perf_header_attr **attr; 50 s64 attr_offset; 51 u64 data_offset; 52 u64 data_size; 53 u64 event_offset; 54 u64 event_size; 55 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 56 }; 57 58 int perf_header__init(struct perf_header *self); 59 void perf_header__exit(struct perf_header *self); 60 61 int perf_header__read(struct perf_header *self, int fd); 62 int perf_header__write(struct perf_header *self, int fd, bool at_exit); 63 64 int perf_header__add_attr(struct perf_header *self, 65 struct perf_header_attr *attr); 66 67 void perf_header__push_event(u64 id, const char *name); 68 char *perf_header__find_event(u64 id); 69 70 struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr); 71 void perf_header_attr__delete(struct perf_header_attr *self); 72 73 int perf_header_attr__add_id(struct perf_header_attr *self, u64 id); 74 75 u64 perf_header__sample_type(struct perf_header *header); 76 struct perf_event_attr * 77 perf_header__find_attr(u64 id, struct perf_header *header); 78 void perf_header__set_feat(struct perf_header *self, int feat); 79 bool perf_header__has_feat(const struct perf_header *self, int feat); 80 81 int perf_header__process_sections(struct perf_header *self, int fd, 82 int (*process)(struct perf_file_section *self, 83 int feat, int fd)); 84 85 #endif /* __PERF_HEADER_H */ 86