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 #include "event.h" 9 10 #include <linux/bitmap.h> 11 12 struct perf_header_attr { 13 struct perf_event_attr attr; 14 int ids, size; 15 u64 *id; 16 off_t id_offset; 17 }; 18 19 enum { 20 HEADER_TRACE_INFO = 1, 21 HEADER_BUILD_ID, 22 HEADER_LAST_FEATURE, 23 }; 24 25 #define HEADER_FEAT_BITS 256 26 27 struct perf_file_section { 28 u64 offset; 29 u64 size; 30 }; 31 32 struct perf_file_header { 33 u64 magic; 34 u64 size; 35 u64 attr_size; 36 struct perf_file_section attrs; 37 struct perf_file_section data; 38 struct perf_file_section event_types; 39 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 40 }; 41 42 struct perf_header; 43 44 int perf_file_header__read(struct perf_file_header *self, 45 struct perf_header *ph, int fd); 46 47 struct perf_header { 48 int frozen; 49 int attrs, size; 50 struct perf_header_attr **attr; 51 s64 attr_offset; 52 u64 data_offset; 53 u64 data_size; 54 u64 event_offset; 55 u64 event_size; 56 bool needs_swap; 57 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 58 }; 59 60 int perf_header__init(struct perf_header *self); 61 void perf_header__exit(struct perf_header *self); 62 63 int perf_header__read(struct perf_header *self, int fd); 64 int perf_header__write(struct perf_header *self, int fd, bool at_exit); 65 66 int perf_header__add_attr(struct perf_header *self, 67 struct perf_header_attr *attr); 68 69 int perf_header__push_event(u64 id, const char *name); 70 char *perf_header__find_event(u64 id); 71 72 struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr); 73 void perf_header_attr__delete(struct perf_header_attr *self); 74 75 int perf_header_attr__add_id(struct perf_header_attr *self, u64 id); 76 77 u64 perf_header__sample_type(struct perf_header *header); 78 struct perf_event_attr * 79 perf_header__find_attr(u64 id, struct perf_header *header); 80 void perf_header__set_feat(struct perf_header *self, int feat); 81 bool perf_header__has_feat(const struct perf_header *self, int feat); 82 83 int perf_header__process_sections(struct perf_header *self, int fd, 84 int (*process)(struct perf_file_section *self, 85 struct perf_header *ph, 86 int feat, int fd)); 87 88 int build_id_cache__add_s(const char *sbuild_id, const char *debugdir, 89 const char *name, bool is_kallsyms); 90 int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir); 91 92 #endif /* __PERF_HEADER_H */ 93