| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef __PERF_HEADER_H |
| #define __PERF_HEADER_H |
| |
| #include <linux/stddef.h> |
| #include <linux/perf_event.h> |
| #include <sys/types.h> |
| #include <stdbool.h> |
| #include <linux/bitmap.h> |
| #include <linux/types.h> |
| #include "event.h" |
| #include "env.h" |
| #include "pmu.h" |
| |
| enum { |
| HEADER_RESERVED = 0, /* always cleared */ |
| HEADER_FIRST_FEATURE = 1, |
| HEADER_TRACING_DATA = 1, |
| HEADER_BUILD_ID, |
| |
| HEADER_HOSTNAME, |
| HEADER_OSRELEASE, |
| HEADER_VERSION, |
| HEADER_ARCH, |
| HEADER_NRCPUS, |
| HEADER_CPUDESC, |
| HEADER_CPUID, |
| HEADER_TOTAL_MEM, |
| HEADER_CMDLINE, |
| HEADER_EVENT_DESC, |
| HEADER_CPU_TOPOLOGY, |
| HEADER_NUMA_TOPOLOGY, |
| HEADER_BRANCH_STACK, |
| HEADER_PMU_MAPPINGS, |
| HEADER_GROUP_DESC, |
| HEADER_AUXTRACE, |
| HEADER_STAT, |
| HEADER_CACHE, |
| HEADER_SAMPLE_TIME, |
| HEADER_MEM_TOPOLOGY, |
| HEADER_CLOCKID, |
| HEADER_LAST_FEATURE, |
| HEADER_FEAT_BITS = 256, |
| }; |
| |
| enum perf_header_version { |
| PERF_HEADER_VERSION_1, |
| PERF_HEADER_VERSION_2, |
| }; |
| |
| struct perf_file_section { |
| u64 offset; |
| u64 size; |
| }; |
| |
| struct perf_file_header { |
| u64 magic; |
| u64 size; |
| u64 attr_size; |
| struct perf_file_section attrs; |
| struct perf_file_section data; |
| /* event_types is ignored */ |
| struct perf_file_section event_types; |
| DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); |
| }; |
| |
| struct perf_pipe_file_header { |
| u64 magic; |
| u64 size; |
| }; |
| |
| struct perf_header; |
| |
| int perf_file_header__read(struct perf_file_header *header, |
| struct perf_header *ph, int fd); |
| |
| struct perf_header { |
| enum perf_header_version version; |
| bool needs_swap; |
| u64 data_offset; |
| u64 data_size; |
| u64 feat_offset; |
| DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); |
| struct perf_env env; |
| }; |
| |
| struct perf_evlist; |
| struct perf_session; |
| |
| int perf_session__read_header(struct perf_session *session); |
| int perf_session__write_header(struct perf_session *session, |
| struct perf_evlist *evlist, |
| int fd, bool at_exit); |
| int perf_header__write_pipe(int fd); |
| |
| void perf_header__set_feat(struct perf_header *header, int feat); |
| void perf_header__clear_feat(struct perf_header *header, int feat); |
| bool perf_header__has_feat(const struct perf_header *header, int feat); |
| |
| int perf_header__set_cmdline(int argc, const char **argv); |
| |
| int perf_header__process_sections(struct perf_header *header, int fd, |
| void *data, |
| int (*process)(struct perf_file_section *section, |
| struct perf_header *ph, |
| int feat, int fd, void *data)); |
| |
| int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full); |
| |
| int perf_event__synthesize_features(struct perf_tool *tool, |
| struct perf_session *session, |
| struct perf_evlist *evlist, |
| perf_event__handler_t process); |
| |
| int perf_event__synthesize_extra_attr(struct perf_tool *tool, |
| struct perf_evlist *evsel_list, |
| perf_event__handler_t process, |
| bool is_pipe); |
| |
| int perf_event__process_feature(struct perf_session *session, |
| union perf_event *event); |
| |
| int perf_event__synthesize_attr(struct perf_tool *tool, |
| struct perf_event_attr *attr, u32 ids, u64 *id, |
| perf_event__handler_t process); |
| int perf_event__synthesize_attrs(struct perf_tool *tool, |
| struct perf_evlist *evlist, |
| perf_event__handler_t process); |
| int perf_event__synthesize_event_update_unit(struct perf_tool *tool, |
| struct perf_evsel *evsel, |
| perf_event__handler_t process); |
| int perf_event__synthesize_event_update_scale(struct perf_tool *tool, |
| struct perf_evsel *evsel, |
| perf_event__handler_t process); |
| int perf_event__synthesize_event_update_name(struct perf_tool *tool, |
| struct perf_evsel *evsel, |
| perf_event__handler_t process); |
| int perf_event__synthesize_event_update_cpus(struct perf_tool *tool, |
| struct perf_evsel *evsel, |
| perf_event__handler_t process); |
| int perf_event__process_attr(struct perf_tool *tool, union perf_event *event, |
| struct perf_evlist **pevlist); |
| int perf_event__process_event_update(struct perf_tool *tool, |
| union perf_event *event, |
| struct perf_evlist **pevlist); |
| size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp); |
| |
| int perf_event__synthesize_tracing_data(struct perf_tool *tool, |
| int fd, struct perf_evlist *evlist, |
| perf_event__handler_t process); |
| int perf_event__process_tracing_data(struct perf_session *session, |
| union perf_event *event); |
| |
| int perf_event__synthesize_build_id(struct perf_tool *tool, |
| struct dso *pos, u16 misc, |
| perf_event__handler_t process, |
| struct machine *machine); |
| int perf_event__process_build_id(struct perf_session *session, |
| union perf_event *event); |
| bool is_perf_magic(u64 magic); |
| |
| #define NAME_ALIGN 64 |
| |
| struct feat_fd; |
| |
| int do_write(struct feat_fd *fd, const void *buf, size_t size); |
| |
| int write_padded(struct feat_fd *fd, const void *bf, |
| size_t count, size_t count_aligned); |
| |
| /* |
| * arch specific callback |
| */ |
| int get_cpuid(char *buffer, size_t sz); |
| |
| char *get_cpuid_str(struct perf_pmu *pmu __maybe_unused); |
| int strcmp_cpuid_str(const char *s1, const char *s2); |
| #endif /* __PERF_HEADER_H */ |