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_pipe_file_header { 43 u64 magic; 44 u64 size; 45 }; 46 47 struct perf_header; 48 49 int perf_file_header__read(struct perf_file_header *self, 50 struct perf_header *ph, int fd); 51 52 struct perf_header { 53 int frozen; 54 int attrs, size; 55 bool needs_swap; 56 struct perf_header_attr **attr; 57 s64 attr_offset; 58 u64 data_offset; 59 u64 data_size; 60 u64 event_offset; 61 u64 event_size; 62 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); 63 }; 64 65 int perf_header__init(struct perf_header *self); 66 void perf_header__exit(struct perf_header *self); 67 68 int perf_header__read(struct perf_session *session, int fd); 69 int perf_header__write(struct perf_header *self, int fd, bool at_exit); 70 int perf_header__write_pipe(int fd); 71 72 int perf_header__add_attr(struct perf_header *self, 73 struct perf_header_attr *attr); 74 75 int perf_header__push_event(u64 id, const char *name); 76 char *perf_header__find_event(u64 id); 77 78 struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr); 79 void perf_header_attr__delete(struct perf_header_attr *self); 80 81 int perf_header_attr__add_id(struct perf_header_attr *self, u64 id); 82 83 u64 perf_header__sample_type(struct perf_header *header); 84 struct perf_event_attr * 85 perf_header__find_attr(u64 id, struct perf_header *header); 86 void perf_header__set_feat(struct perf_header *self, int feat); 87 bool perf_header__has_feat(const struct perf_header *self, int feat); 88 89 int perf_header__process_sections(struct perf_header *self, int fd, 90 int (*process)(struct perf_file_section *self, 91 struct perf_header *ph, 92 int feat, int fd)); 93 94 int build_id_cache__add_s(const char *sbuild_id, const char *debugdir, 95 const char *name, bool is_kallsyms); 96 int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir); 97 98 #endif /* __PERF_HEADER_H */ 99