diff options
Diffstat (limited to 'tools/perf/util/evlist.h')
| -rw-r--r-- | tools/perf/util/evlist.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h new file mode 100644 index 00000000..0583d362 --- /dev/null +++ b/tools/perf/util/evlist.h @@ -0,0 +1,167 @@ +#ifndef __PERF_EVLIST_H +#define __PERF_EVLIST_H 1 + +#include <linux/list.h> +#include <stdio.h> +#include "../perf.h" +#include "event.h" +#include "evsel.h" +#include "util.h" +#include <unistd.h> + +struct pollfd; +struct thread_map; +struct cpu_map; +struct perf_record_opts; + +#define PERF_EVLIST__HLIST_BITS 8 +#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS) + +struct perf_mmap { + void *base; + int mask; + unsigned int prev; + union perf_event event_copy; +}; + +struct perf_evlist { + struct list_head entries; + struct hlist_head heads[PERF_EVLIST__HLIST_SIZE]; + int nr_entries; + int nr_groups; + int nr_fds; + int nr_mmaps; + int mmap_len; + struct { + int cork_fd; + pid_t pid; + } workload; + bool overwrite; + struct perf_mmap *mmap; + struct pollfd *pollfd; + struct thread_map *threads; + struct cpu_map *cpus; + struct perf_evsel *selected; +}; + +struct perf_evsel_str_handler { + const char *name; + void *handler; +}; + +struct perf_evlist *perf_evlist__new(void); +void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus, + struct thread_map *threads); +void perf_evlist__exit(struct perf_evlist *evlist); +void perf_evlist__delete(struct perf_evlist *evlist); + +void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry); +int perf_evlist__add_default(struct perf_evlist *evlist); +int __perf_evlist__add_default_attrs(struct perf_evlist *evlist, + struct perf_event_attr *attrs, size_t nr_attrs); + +#define perf_evlist__add_default_attrs(evlist, array) \ + __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array)) + +int perf_evlist__add_newtp(struct perf_evlist *evlist, + const char *sys, const char *name, void *handler); + +int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter); + +struct perf_evsel * +perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id); + +void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel, + int cpu, int thread, u64 id); + +void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd); + +struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id); + +union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx); + +int perf_evlist__open(struct perf_evlist *evlist); +void perf_evlist__close(struct perf_evlist *evlist); + +void perf_evlist__config(struct perf_evlist *evlist, + struct perf_record_opts *opts); + +int perf_evlist__prepare_workload(struct perf_evlist *evlist, + struct perf_target *target, + const char *argv[], bool pipe_output, + bool want_signal); +int perf_evlist__start_workload(struct perf_evlist *evlist); + +int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages, + bool overwrite); +void perf_evlist__munmap(struct perf_evlist *evlist); + +void perf_evlist__disable(struct perf_evlist *evlist); +void perf_evlist__enable(struct perf_evlist *evlist); + +void perf_evlist__set_selected(struct perf_evlist *evlist, + struct perf_evsel *evsel); + +static inline void perf_evlist__set_maps(struct perf_evlist *evlist, + struct cpu_map *cpus, + struct thread_map *threads) +{ + evlist->cpus = cpus; + evlist->threads = threads; +} + +int perf_evlist__create_maps(struct perf_evlist *evlist, + struct perf_target *target); +void perf_evlist__delete_maps(struct perf_evlist *evlist); +int perf_evlist__apply_filters(struct perf_evlist *evlist); + +void __perf_evlist__set_leader(struct list_head *list); +void perf_evlist__set_leader(struct perf_evlist *evlist); + +u64 perf_evlist__sample_type(struct perf_evlist *evlist); +bool perf_evlist__sample_id_all(struct perf_evlist *evlist); +u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist); + +int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event, + struct perf_sample *sample); + +bool perf_evlist__valid_sample_type(struct perf_evlist *evlist); +bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist); + +void perf_evlist__splice_list_tail(struct perf_evlist *evlist, + struct list_head *list, + int nr_entries); + +static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist) +{ + return list_entry(evlist->entries.next, struct perf_evsel, node); +} + +static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist) +{ + return list_entry(evlist->entries.prev, struct perf_evsel, node); +} + +size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp); + +static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm) +{ + struct perf_event_mmap_page *pc = mm->base; + int head = pc->data_head; + rmb(); + return head; +} + +static inline void perf_mmap__write_tail(struct perf_mmap *md, + unsigned long tail) +{ + struct perf_event_mmap_page *pc = md->base; + + /* + * ensure all reads are done before we write the tail out. + */ + /* mb(); */ + pc->data_tail = tail; +} + +#endif /* __PERF_EVLIST_H */ |