diff options
Diffstat (limited to 'tools/lib/perf/include')
| -rw-r--r-- | tools/lib/perf/include/internal/cpumap.h | 30 | ||||
| -rw-r--r-- | tools/lib/perf/include/internal/evlist.h | 139 | ||||
| -rw-r--r-- | tools/lib/perf/include/internal/evsel.h | 82 | ||||
| -rw-r--r-- | tools/lib/perf/include/internal/lib.h | 14 | ||||
| -rw-r--r-- | tools/lib/perf/include/internal/mmap.h | 59 | ||||
| -rw-r--r-- | tools/lib/perf/include/internal/tests.h | 67 | ||||
| -rw-r--r-- | tools/lib/perf/include/internal/threadmap.h | 23 | ||||
| -rw-r--r-- | tools/lib/perf/include/internal/xyarray.h | 43 | ||||
| -rw-r--r-- | tools/lib/perf/include/perf/bpf_perf.h | 31 | ||||
| -rw-r--r-- | tools/lib/perf/include/perf/core.h | 25 | ||||
| -rw-r--r-- | tools/lib/perf/include/perf/cpumap.h | 37 | ||||
| -rw-r--r-- | tools/lib/perf/include/perf/event.h | 504 | ||||
| -rw-r--r-- | tools/lib/perf/include/perf/evlist.h | 50 | ||||
| -rw-r--r-- | tools/lib/perf/include/perf/evsel.h | 50 | ||||
| -rw-r--r-- | tools/lib/perf/include/perf/mmap.h | 15 | ||||
| -rw-r--r-- | tools/lib/perf/include/perf/threadmap.h | 21 |
16 files changed, 1190 insertions, 0 deletions
diff --git a/tools/lib/perf/include/internal/cpumap.h b/tools/lib/perf/include/internal/cpumap.h new file mode 100644 index 000000000..35dd29642 --- /dev/null +++ b/tools/lib/perf/include/internal/cpumap.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_INTERNAL_CPUMAP_H +#define __LIBPERF_INTERNAL_CPUMAP_H + +#include <linux/refcount.h> +#include <perf/cpumap.h> + +/** + * A sized, reference counted, sorted array of integers representing CPU + * numbers. This is commonly used to capture which CPUs a PMU is associated + * with. The indices into the cpumap are frequently used as they avoid having + * gaps if CPU numbers were used. For events associated with a pid, rather than + * a CPU, a single dummy map with an entry of -1 is used. + */ +struct perf_cpu_map { + refcount_t refcnt; + /** Length of the map array. */ + int nr; + /** The CPU values. */ + struct perf_cpu map[]; +}; + +#ifndef MAX_NR_CPUS +#define MAX_NR_CPUS 2048 +#endif + +int perf_cpu_map__idx(const struct perf_cpu_map *cpus, struct perf_cpu cpu); +bool perf_cpu_map__is_subset(const struct perf_cpu_map *a, const struct perf_cpu_map *b); + +#endif /* __LIBPERF_INTERNAL_CPUMAP_H */ diff --git a/tools/lib/perf/include/internal/evlist.h b/tools/lib/perf/include/internal/evlist.h new file mode 100644 index 000000000..850f07070 --- /dev/null +++ b/tools/lib/perf/include/internal/evlist.h @@ -0,0 +1,139 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_INTERNAL_EVLIST_H +#define __LIBPERF_INTERNAL_EVLIST_H + +#include <linux/list.h> +#include <api/fd/array.h> +#include <internal/cpumap.h> +#include <internal/evsel.h> + +#define PERF_EVLIST__HLIST_BITS 8 +#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS) + +struct perf_cpu_map; +struct perf_thread_map; +struct perf_mmap_param; + +struct perf_evlist { + struct list_head entries; + int nr_entries; + int nr_groups; + bool has_user_cpus; + bool needs_map_propagation; + /** + * The cpus passed from the command line or all online CPUs by + * default. + */ + struct perf_cpu_map *user_requested_cpus; + /** The union of all evsel cpu maps. */ + struct perf_cpu_map *all_cpus; + struct perf_thread_map *threads; + int nr_mmaps; + size_t mmap_len; + struct fdarray pollfd; + struct hlist_head heads[PERF_EVLIST__HLIST_SIZE]; + struct perf_mmap *mmap; + struct perf_mmap *mmap_ovw; + struct perf_mmap *mmap_first; + struct perf_mmap *mmap_ovw_first; +}; + +typedef void +(*perf_evlist_mmap__cb_idx_t)(struct perf_evlist*, struct perf_evsel*, + struct perf_mmap_param*, int); +typedef struct perf_mmap* +(*perf_evlist_mmap__cb_get_t)(struct perf_evlist*, bool, int); +typedef int +(*perf_evlist_mmap__cb_mmap_t)(struct perf_mmap*, struct perf_mmap_param*, int, struct perf_cpu); + +struct perf_evlist_mmap_ops { + perf_evlist_mmap__cb_idx_t idx; + perf_evlist_mmap__cb_get_t get; + perf_evlist_mmap__cb_mmap_t mmap; +}; + +int perf_evlist__alloc_pollfd(struct perf_evlist *evlist); +int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd, + void *ptr, short revent, enum fdarray_flags flags); + +int perf_evlist__mmap_ops(struct perf_evlist *evlist, + struct perf_evlist_mmap_ops *ops, + struct perf_mmap_param *mp); + +void perf_evlist__init(struct perf_evlist *evlist); +void perf_evlist__exit(struct perf_evlist *evlist); + +/** + * __perf_evlist__for_each_entry - iterate thru all the evsels + * @list: list_head instance to iterate + * @evsel: struct perf_evsel iterator + */ +#define __perf_evlist__for_each_entry(list, evsel) \ + list_for_each_entry(evsel, list, node) + +/** + * evlist__for_each_entry - iterate thru all the evsels + * @evlist: perf_evlist instance to iterate + * @evsel: struct perf_evsel iterator + */ +#define perf_evlist__for_each_entry(evlist, evsel) \ + __perf_evlist__for_each_entry(&(evlist)->entries, evsel) + +/** + * __perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order + * @list: list_head instance to iterate + * @evsel: struct evsel iterator + */ +#define __perf_evlist__for_each_entry_reverse(list, evsel) \ + list_for_each_entry_reverse(evsel, list, node) + +/** + * perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order + * @evlist: evlist instance to iterate + * @evsel: struct evsel iterator + */ +#define perf_evlist__for_each_entry_reverse(evlist, evsel) \ + __perf_evlist__for_each_entry_reverse(&(evlist)->entries, evsel) + +/** + * __perf_evlist__for_each_entry_safe - safely iterate thru all the evsels + * @list: list_head instance to iterate + * @tmp: struct evsel temp iterator + * @evsel: struct evsel iterator + */ +#define __perf_evlist__for_each_entry_safe(list, tmp, evsel) \ + list_for_each_entry_safe(evsel, tmp, list, node) + +/** + * perf_evlist__for_each_entry_safe - safely iterate thru all the evsels + * @evlist: evlist instance to iterate + * @evsel: struct evsel iterator + * @tmp: struct evsel temp iterator + */ +#define perf_evlist__for_each_entry_safe(evlist, tmp, evsel) \ + __perf_evlist__for_each_entry_safe(&(evlist)->entries, tmp, evsel) + +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); +} + +u64 perf_evlist__read_format(struct perf_evlist *evlist); + +void perf_evlist__id_add(struct perf_evlist *evlist, + struct perf_evsel *evsel, + int cpu, int thread, u64 id); + +int perf_evlist__id_add_fd(struct perf_evlist *evlist, + struct perf_evsel *evsel, + int cpu, int thread, int fd); + +void perf_evlist__reset_id_hash(struct perf_evlist *evlist); + +void __perf_evlist__set_leader(struct list_head *list, struct perf_evsel *leader); +#endif /* __LIBPERF_INTERNAL_EVLIST_H */ diff --git a/tools/lib/perf/include/internal/evsel.h b/tools/lib/perf/include/internal/evsel.h new file mode 100644 index 000000000..a99a75d9e --- /dev/null +++ b/tools/lib/perf/include/internal/evsel.h @@ -0,0 +1,82 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_INTERNAL_EVSEL_H +#define __LIBPERF_INTERNAL_EVSEL_H + +#include <linux/types.h> +#include <linux/perf_event.h> +#include <stdbool.h> +#include <sys/types.h> +#include <internal/cpumap.h> + +struct perf_thread_map; +struct xyarray; + +/* + * Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are + * more than one entry in the evlist. + */ +struct perf_sample_id { + struct hlist_node node; + u64 id; + struct perf_evsel *evsel; + /* + * 'idx' will be used for AUX area sampling. A sample will have AUX area + * data that will be queued for decoding, where there are separate + * queues for each CPU (per-cpu tracing) or task (per-thread tracing). + * The sample ID can be used to lookup 'idx' which is effectively the + * queue number. + */ + int idx; + struct perf_cpu cpu; + pid_t tid; + + /* Guest machine pid and VCPU, valid only if machine_pid is non-zero */ + pid_t machine_pid; + struct perf_cpu vcpu; + + /* Holds total ID period value for PERF_SAMPLE_READ processing. */ + u64 period; +}; + +struct perf_evsel { + struct list_head node; + struct perf_event_attr attr; + struct perf_cpu_map *cpus; + struct perf_cpu_map *own_cpus; + struct perf_thread_map *threads; + struct xyarray *fd; + struct xyarray *mmap; + struct xyarray *sample_id; + u64 *id; + u32 ids; + struct perf_evsel *leader; + + /* parse modifier helper */ + int nr_members; + /* + * system_wide is for events that need to be on every CPU, irrespective + * of user requested CPUs or threads. Map propagation will set cpus to + * this event's own_cpus, whereby they will contribute to evlist + * all_cpus. + */ + bool system_wide; + /* + * Some events, for example uncore events, require a CPU. + * i.e. it cannot be the 'any CPU' value of -1. + */ + bool requires_cpu; + int idx; +}; + +void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr, + int idx); +int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads); +void perf_evsel__close_fd(struct perf_evsel *evsel); +void perf_evsel__free_fd(struct perf_evsel *evsel); +int perf_evsel__read_size(struct perf_evsel *evsel); +int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter); + +int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads); +void perf_evsel__free_id(struct perf_evsel *evsel); + +#endif /* __LIBPERF_INTERNAL_EVSEL_H */ diff --git a/tools/lib/perf/include/internal/lib.h b/tools/lib/perf/include/internal/lib.h new file mode 100644 index 000000000..85471a4b9 --- /dev/null +++ b/tools/lib/perf/include/internal/lib.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_INTERNAL_LIB_H +#define __LIBPERF_INTERNAL_LIB_H + +#include <sys/types.h> + +extern unsigned int page_size; + +ssize_t readn(int fd, void *buf, size_t n); +ssize_t writen(int fd, const void *buf, size_t n); + +ssize_t preadn(int fd, void *buf, size_t n, off_t offs); + +#endif /* __LIBPERF_INTERNAL_CPUMAP_H */ diff --git a/tools/lib/perf/include/internal/mmap.h b/tools/lib/perf/include/internal/mmap.h new file mode 100644 index 000000000..5a062af8e --- /dev/null +++ b/tools/lib/perf/include/internal/mmap.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_INTERNAL_MMAP_H +#define __LIBPERF_INTERNAL_MMAP_H + +#include <linux/compiler.h> +#include <linux/refcount.h> +#include <linux/types.h> +#include <stdbool.h> +#include <internal/cpumap.h> + +/* perf sample has 16 bits size limit */ +#define PERF_SAMPLE_MAX_SIZE (1 << 16) + +struct perf_mmap; +struct perf_counts_values; + +typedef void (*libperf_unmap_cb_t)(struct perf_mmap *map); + +/** + * struct perf_mmap - perf's ring buffer mmap details + * + * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this + */ +struct perf_mmap { + void *base; + int mask; + int fd; + struct perf_cpu cpu; + refcount_t refcnt; + u64 prev; + u64 start; + u64 end; + bool overwrite; + u64 flush; + libperf_unmap_cb_t unmap_cb; + char event_copy[PERF_SAMPLE_MAX_SIZE] __aligned(8); + struct perf_mmap *next; +}; + +struct perf_mmap_param { + int prot; + int mask; +}; + +size_t perf_mmap__mmap_len(struct perf_mmap *map); + +void perf_mmap__init(struct perf_mmap *map, struct perf_mmap *prev, + bool overwrite, libperf_unmap_cb_t unmap_cb); +int perf_mmap__mmap(struct perf_mmap *map, struct perf_mmap_param *mp, + int fd, struct perf_cpu cpu); +void perf_mmap__munmap(struct perf_mmap *map); +void perf_mmap__get(struct perf_mmap *map); +void perf_mmap__put(struct perf_mmap *map); + +u64 perf_mmap__read_head(struct perf_mmap *map); + +int perf_mmap__read_self(struct perf_mmap *map, struct perf_counts_values *count); + +#endif /* __LIBPERF_INTERNAL_MMAP_H */ diff --git a/tools/lib/perf/include/internal/tests.h b/tools/lib/perf/include/internal/tests.h new file mode 100644 index 000000000..b130a6663 --- /dev/null +++ b/tools/lib/perf/include/internal/tests.h @@ -0,0 +1,67 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_INTERNAL_TESTS_H +#define __LIBPERF_INTERNAL_TESTS_H + +#include <stdio.h> +#include <unistd.h> + +extern int tests_failed; +extern int tests_verbose; + +static inline int get_verbose(char **argv, int argc) +{ + int c; + int verbose = 0; + + while ((c = getopt(argc, argv, "v")) != -1) { + switch (c) + { + case 'v': + verbose = 1; + break; + default: + break; + } + } + optind = 1; + + return verbose; +} + +#define __T_START \ +do { \ + tests_verbose = get_verbose(argv, argc); \ + fprintf(stdout, "- running %s...", __FILE__); \ + fflush(NULL); \ + tests_failed = 0; \ +} while (0) + +#define __T_END \ +do { \ + if (tests_failed) \ + fprintf(stdout, " FAILED (%d)\n", tests_failed); \ + else \ + fprintf(stdout, "OK\n"); \ +} while (0) + +#define __T(text, cond) \ +do { \ + if (!(cond)) { \ + fprintf(stderr, "FAILED %s:%d %s\n", __FILE__, __LINE__, text); \ + tests_failed++; \ + return -1; \ + } \ +} while (0) + +#define __T_VERBOSE(...) \ +do { \ + if (tests_verbose) { \ + if (tests_verbose == 1) { \ + fputc('\n', stderr); \ + tests_verbose++; \ + } \ + fprintf(stderr, ##__VA_ARGS__); \ + } \ +} while (0) + +#endif /* __LIBPERF_INTERNAL_TESTS_H */ diff --git a/tools/lib/perf/include/internal/threadmap.h b/tools/lib/perf/include/internal/threadmap.h new file mode 100644 index 000000000..df748baf9 --- /dev/null +++ b/tools/lib/perf/include/internal/threadmap.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_INTERNAL_THREADMAP_H +#define __LIBPERF_INTERNAL_THREADMAP_H + +#include <linux/refcount.h> +#include <sys/types.h> +#include <unistd.h> + +struct thread_map_data { + pid_t pid; + char *comm; +}; + +struct perf_thread_map { + refcount_t refcnt; + int nr; + int err_thread; + struct thread_map_data map[]; +}; + +struct perf_thread_map *perf_thread_map__realloc(struct perf_thread_map *map, int nr); + +#endif /* __LIBPERF_INTERNAL_THREADMAP_H */ diff --git a/tools/lib/perf/include/internal/xyarray.h b/tools/lib/perf/include/internal/xyarray.h new file mode 100644 index 000000000..f10af3da7 --- /dev/null +++ b/tools/lib/perf/include/internal/xyarray.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_INTERNAL_XYARRAY_H +#define __LIBPERF_INTERNAL_XYARRAY_H + +#include <linux/compiler.h> +#include <sys/types.h> + +struct xyarray { + size_t row_size; + size_t entry_size; + size_t entries; + size_t max_x; + size_t max_y; + char contents[] __aligned(8); +}; + +struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size); +void xyarray__delete(struct xyarray *xy); +void xyarray__reset(struct xyarray *xy); + +static inline void *__xyarray__entry(struct xyarray *xy, int x, int y) +{ + return &xy->contents[x * xy->row_size + y * xy->entry_size]; +} + +static inline void *xyarray__entry(struct xyarray *xy, size_t x, size_t y) +{ + if (x >= xy->max_x || y >= xy->max_y) + return NULL; + return __xyarray__entry(xy, x, y); +} + +static inline int xyarray__max_y(struct xyarray *xy) +{ + return xy->max_y; +} + +static inline int xyarray__max_x(struct xyarray *xy) +{ + return xy->max_x; +} + +#endif /* __LIBPERF_INTERNAL_XYARRAY_H */ diff --git a/tools/lib/perf/include/perf/bpf_perf.h b/tools/lib/perf/include/perf/bpf_perf.h new file mode 100644 index 000000000..e7cf6ba7b --- /dev/null +++ b/tools/lib/perf/include/perf/bpf_perf.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ +#ifndef __LIBPERF_BPF_PERF_H +#define __LIBPERF_BPF_PERF_H + +#include <linux/types.h> /* for __u32 */ + +/* + * bpf_perf uses a hashmap, the attr_map, to track all the leader programs. + * The hashmap is pinned in bpffs. flock() on this file is used to ensure + * no concurrent access to the attr_map. The key of attr_map is struct + * perf_event_attr, and the value is struct perf_event_attr_map_entry. + * + * struct perf_event_attr_map_entry contains two __u32 IDs, bpf_link of the + * leader prog, and the diff_map. Each perf-stat session holds a reference + * to the bpf_link to make sure the leader prog is attached to sched_switch + * tracepoint. + * + * Since the hashmap only contains IDs of the bpf_link and diff_map, it + * does not hold any references to the leader program. Once all perf-stat + * sessions of these events exit, the leader prog, its maps, and the + * perf_events will be freed. + */ +struct perf_event_attr_map_entry { + __u32 link_id; + __u32 diff_map_id; +}; + +/* default attr_map name */ +#define BPF_PERF_DEFAULT_ATTR_MAP_PATH "perf_attr_map" + +#endif /* __LIBPERF_BPF_PERF_H */ diff --git a/tools/lib/perf/include/perf/core.h b/tools/lib/perf/include/perf/core.h new file mode 100644 index 000000000..a3f6d68ed --- /dev/null +++ b/tools/lib/perf/include/perf/core.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_CORE_H +#define __LIBPERF_CORE_H + +#include <stdarg.h> + +#ifndef LIBPERF_API +#define LIBPERF_API __attribute__((visibility("default"))) +#endif + +enum libperf_print_level { + LIBPERF_ERR, + LIBPERF_WARN, + LIBPERF_INFO, + LIBPERF_DEBUG, + LIBPERF_DEBUG2, + LIBPERF_DEBUG3, +}; + +typedef int (*libperf_print_fn_t)(enum libperf_print_level level, + const char *, va_list ap); + +LIBPERF_API void libperf_init(libperf_print_fn_t fn); + +#endif /* __LIBPERF_CORE_H */ diff --git a/tools/lib/perf/include/perf/cpumap.h b/tools/lib/perf/include/perf/cpumap.h new file mode 100644 index 000000000..03aceb72a --- /dev/null +++ b/tools/lib/perf/include/perf/cpumap.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_CPUMAP_H +#define __LIBPERF_CPUMAP_H + +#include <perf/core.h> +#include <perf/cpumap.h> +#include <stdio.h> +#include <stdbool.h> + +/** A wrapper around a CPU to avoid confusion with the perf_cpu_map's map's indices. */ +struct perf_cpu { + int cpu; +}; + +LIBPERF_API struct perf_cpu_map *perf_cpu_map__dummy_new(void); +LIBPERF_API struct perf_cpu_map *perf_cpu_map__default_new(void); +LIBPERF_API struct perf_cpu_map *perf_cpu_map__new(const char *cpu_list); +LIBPERF_API struct perf_cpu_map *perf_cpu_map__read(FILE *file); +LIBPERF_API struct perf_cpu_map *perf_cpu_map__get(struct perf_cpu_map *map); +LIBPERF_API struct perf_cpu_map *perf_cpu_map__merge(struct perf_cpu_map *orig, + struct perf_cpu_map *other); +LIBPERF_API void perf_cpu_map__put(struct perf_cpu_map *map); +LIBPERF_API struct perf_cpu perf_cpu_map__cpu(const struct perf_cpu_map *cpus, int idx); +LIBPERF_API int perf_cpu_map__nr(const struct perf_cpu_map *cpus); +LIBPERF_API bool perf_cpu_map__empty(const struct perf_cpu_map *map); +LIBPERF_API struct perf_cpu perf_cpu_map__max(const struct perf_cpu_map *map); +LIBPERF_API bool perf_cpu_map__has(const struct perf_cpu_map *map, struct perf_cpu cpu); + +#define perf_cpu_map__for_each_cpu(cpu, idx, cpus) \ + for ((idx) = 0, (cpu) = perf_cpu_map__cpu(cpus, idx); \ + (idx) < perf_cpu_map__nr(cpus); \ + (idx)++, (cpu) = perf_cpu_map__cpu(cpus, idx)) + +#define perf_cpu_map__for_each_idx(idx, cpus) \ + for ((idx) = 0; (idx) < perf_cpu_map__nr(cpus); (idx)++) + +#endif /* __LIBPERF_CPUMAP_H */ diff --git a/tools/lib/perf/include/perf/event.h b/tools/lib/perf/include/perf/event.h new file mode 100644 index 000000000..ad47d7b31 --- /dev/null +++ b/tools/lib/perf/include/perf/event.h @@ -0,0 +1,504 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_EVENT_H +#define __LIBPERF_EVENT_H + +#include <linux/perf_event.h> +#include <linux/types.h> +#include <linux/limits.h> +#include <linux/bpf.h> +#include <sys/types.h> /* pid_t */ + +#define event_contains(obj, mem) ((obj).header.size > offsetof(typeof(obj), mem)) + +struct perf_record_mmap { + struct perf_event_header header; + __u32 pid, tid; + __u64 start; + __u64 len; + __u64 pgoff; + char filename[PATH_MAX]; +}; + +struct perf_record_mmap2 { + struct perf_event_header header; + __u32 pid, tid; + __u64 start; + __u64 len; + __u64 pgoff; + union { + struct { + __u32 maj; + __u32 min; + __u64 ino; + __u64 ino_generation; + }; + struct { + __u8 build_id_size; + __u8 __reserved_1; + __u16 __reserved_2; + __u8 build_id[20]; + }; + }; + __u32 prot; + __u32 flags; + char filename[PATH_MAX]; +}; + +struct perf_record_comm { + struct perf_event_header header; + __u32 pid, tid; + char comm[16]; +}; + +struct perf_record_namespaces { + struct perf_event_header header; + __u32 pid, tid; + __u64 nr_namespaces; + struct perf_ns_link_info link_info[]; +}; + +struct perf_record_fork { + struct perf_event_header header; + __u32 pid, ppid; + __u32 tid, ptid; + __u64 time; +}; + +struct perf_record_lost { + struct perf_event_header header; + __u64 id; + __u64 lost; +}; + +struct perf_record_lost_samples { + struct perf_event_header header; + __u64 lost; +}; + +/* + * PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID | PERF_FORMAT_LOST + */ +struct perf_record_read { + struct perf_event_header header; + __u32 pid, tid; + __u64 value; + __u64 time_enabled; + __u64 time_running; + __u64 id; + __u64 lost; +}; + +struct perf_record_throttle { + struct perf_event_header header; + __u64 time; + __u64 id; + __u64 stream_id; +}; + +#ifndef KSYM_NAME_LEN +#define KSYM_NAME_LEN 512 +#endif + +struct perf_record_ksymbol { + struct perf_event_header header; + __u64 addr; + __u32 len; + __u16 ksym_type; + __u16 flags; + char name[KSYM_NAME_LEN]; +}; + +struct perf_record_bpf_event { + struct perf_event_header header; + __u16 type; + __u16 flags; + __u32 id; + + /* for bpf_prog types */ + __u8 tag[BPF_TAG_SIZE]; // prog tag +}; + +struct perf_record_cgroup { + struct perf_event_header header; + __u64 id; + char path[PATH_MAX]; +}; + +struct perf_record_text_poke_event { + struct perf_event_header header; + __u64 addr; + __u16 old_len; + __u16 new_len; + __u8 bytes[]; +}; + +struct perf_record_sample { + struct perf_event_header header; + __u64 array[]; +}; + +struct perf_record_switch { + struct perf_event_header header; + __u32 next_prev_pid; + __u32 next_prev_tid; +}; + +struct perf_record_header_attr { + struct perf_event_header header; + struct perf_event_attr attr; + __u64 id[]; +}; + +enum { + PERF_CPU_MAP__CPUS = 0, + PERF_CPU_MAP__MASK = 1, + PERF_CPU_MAP__RANGE_CPUS = 2, +}; + +/* + * Array encoding of a perf_cpu_map where nr is the number of entries in cpu[] + * and each entry is a value for a CPU in the map. + */ +struct cpu_map_entries { + __u16 nr; + __u16 cpu[]; +}; + +/* Bitmap encoding of a perf_cpu_map where bitmap entries are 32-bit. */ +struct perf_record_mask_cpu_map32 { + /* Number of mask values. */ + __u16 nr; + /* Constant 4. */ + __u16 long_size; + /* Bitmap data. */ + __u32 mask[]; +}; + +/* Bitmap encoding of a perf_cpu_map where bitmap entries are 64-bit. */ +struct perf_record_mask_cpu_map64 { + /* Number of mask values. */ + __u16 nr; + /* Constant 8. */ + __u16 long_size; + /* Legacy padding. */ + char __pad[4]; + /* Bitmap data. */ + __u64 mask[]; +}; + +/* + * 'struct perf_record_cpu_map_data' is packed as unfortunately an earlier + * version had unaligned data and we wish to retain file format compatibility. + * -irogers + */ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wpacked" +#pragma GCC diagnostic ignored "-Wattributes" + +/* + * An encoding of a CPU map for a range starting at start_cpu through to + * end_cpu. If any_cpu is 1, an any CPU (-1) value (aka dummy value) is present. + */ +struct perf_record_range_cpu_map { + __u8 any_cpu; + __u8 __pad; + __u16 start_cpu; + __u16 end_cpu; +}; + +struct perf_record_cpu_map_data { + __u16 type; + union { + /* Used when type == PERF_CPU_MAP__CPUS. */ + struct cpu_map_entries cpus_data; + /* Used when type == PERF_CPU_MAP__MASK and long_size == 4. */ + struct perf_record_mask_cpu_map32 mask32_data; + /* Used when type == PERF_CPU_MAP__MASK and long_size == 8. */ + struct perf_record_mask_cpu_map64 mask64_data; + /* Used when type == PERF_CPU_MAP__RANGE_CPUS. */ + struct perf_record_range_cpu_map range_cpu_data; + }; +} __attribute__((packed)); + +#pragma GCC diagnostic pop + +struct perf_record_cpu_map { + struct perf_event_header header; + struct perf_record_cpu_map_data data; +}; + +enum { + PERF_EVENT_UPDATE__UNIT = 0, + PERF_EVENT_UPDATE__SCALE = 1, + PERF_EVENT_UPDATE__NAME = 2, + PERF_EVENT_UPDATE__CPUS = 3, +}; + +struct perf_record_event_update_cpus { + struct perf_record_cpu_map_data cpus; +}; + +struct perf_record_event_update_scale { + double scale; +}; + +struct perf_record_event_update { + struct perf_event_header header; + __u64 type; + __u64 id; + union { + /* Used when type == PERF_EVENT_UPDATE__SCALE. */ + struct perf_record_event_update_scale scale; + /* Used when type == PERF_EVENT_UPDATE__UNIT. */ + char unit[0]; + /* Used when type == PERF_EVENT_UPDATE__NAME. */ + char name[0]; + /* Used when type == PERF_EVENT_UPDATE__CPUS. */ + struct perf_record_event_update_cpus cpus; + }; +}; + +#define MAX_EVENT_NAME 64 + +struct perf_trace_event_type { + __u64 event_id; + char name[MAX_EVENT_NAME]; +}; + +struct perf_record_header_event_type { + struct perf_event_header header; + struct perf_trace_event_type event_type; +}; + +struct perf_record_header_tracing_data { + struct perf_event_header header; + __u32 size; +}; + +#define PERF_RECORD_MISC_BUILD_ID_SIZE (1 << 15) + +struct perf_record_header_build_id { + struct perf_event_header header; + pid_t pid; + union { + __u8 build_id[24]; + struct { + __u8 data[20]; + __u8 size; + __u8 reserved1__; + __u16 reserved2__; + }; + }; + char filename[]; +}; + +struct id_index_entry { + __u64 id; + __u64 idx; + __u64 cpu; + __u64 tid; +}; + +struct id_index_entry_2 { + __u64 machine_pid; + __u64 vcpu; +}; + +struct perf_record_id_index { + struct perf_event_header header; + __u64 nr; + struct id_index_entry entries[]; +}; + +struct perf_record_auxtrace_info { + struct perf_event_header header; + __u32 type; + __u32 reserved__; /* For alignment */ + __u64 priv[]; +}; + +struct perf_record_auxtrace { + struct perf_event_header header; + __u64 size; + __u64 offset; + __u64 reference; + __u32 idx; + __u32 tid; + __u32 cpu; + __u32 reserved__; /* For alignment */ +}; + +#define MAX_AUXTRACE_ERROR_MSG 64 + +struct perf_record_auxtrace_error { + struct perf_event_header header; + __u32 type; + __u32 code; + __u32 cpu; + __u32 pid; + __u32 tid; + __u32 fmt; + __u64 ip; + __u64 time; + char msg[MAX_AUXTRACE_ERROR_MSG]; + __u32 machine_pid; + __u32 vcpu; +}; + +struct perf_record_aux { + struct perf_event_header header; + __u64 aux_offset; + __u64 aux_size; + __u64 flags; +}; + +struct perf_record_itrace_start { + struct perf_event_header header; + __u32 pid; + __u32 tid; +}; + +struct perf_record_aux_output_hw_id { + struct perf_event_header header; + __u64 hw_id; +}; + +struct perf_record_thread_map_entry { + __u64 pid; + char comm[16]; +}; + +struct perf_record_thread_map { + struct perf_event_header header; + __u64 nr; + struct perf_record_thread_map_entry entries[]; +}; + +enum { + PERF_STAT_CONFIG_TERM__AGGR_MODE = 0, + PERF_STAT_CONFIG_TERM__INTERVAL = 1, + PERF_STAT_CONFIG_TERM__SCALE = 2, + PERF_STAT_CONFIG_TERM__MAX = 3, +}; + +struct perf_record_stat_config_entry { + __u64 tag; + __u64 val; +}; + +struct perf_record_stat_config { + struct perf_event_header header; + __u64 nr; + struct perf_record_stat_config_entry data[]; +}; + +struct perf_record_stat { + struct perf_event_header header; + + __u64 id; + __u32 cpu; + __u32 thread; + + union { + struct { + __u64 val; + __u64 ena; + __u64 run; + }; + __u64 values[3]; + }; +}; + +struct perf_record_stat_round { + struct perf_event_header header; + __u64 type; + __u64 time; +}; + +struct perf_record_time_conv { + struct perf_event_header header; + __u64 time_shift; + __u64 time_mult; + __u64 time_zero; + __u64 time_cycles; + __u64 time_mask; + __u8 cap_user_time_zero; + __u8 cap_user_time_short; + __u8 reserved[6]; /* For alignment */ +}; + +struct perf_record_header_feature { + struct perf_event_header header; + __u64 feat_id; + char data[]; +}; + +struct perf_record_compressed { + struct perf_event_header header; + char data[]; +}; + +enum perf_user_event_type { /* above any possible kernel type */ + PERF_RECORD_USER_TYPE_START = 64, + PERF_RECORD_HEADER_ATTR = 64, + PERF_RECORD_HEADER_EVENT_TYPE = 65, /* deprecated */ + PERF_RECORD_HEADER_TRACING_DATA = 66, + PERF_RECORD_HEADER_BUILD_ID = 67, + PERF_RECORD_FINISHED_ROUND = 68, + PERF_RECORD_ID_INDEX = 69, + PERF_RECORD_AUXTRACE_INFO = 70, + PERF_RECORD_AUXTRACE = 71, + PERF_RECORD_AUXTRACE_ERROR = 72, + PERF_RECORD_THREAD_MAP = 73, + PERF_RECORD_CPU_MAP = 74, + PERF_RECORD_STAT_CONFIG = 75, + PERF_RECORD_STAT = 76, + PERF_RECORD_STAT_ROUND = 77, + PERF_RECORD_EVENT_UPDATE = 78, + PERF_RECORD_TIME_CONV = 79, + PERF_RECORD_HEADER_FEATURE = 80, + PERF_RECORD_COMPRESSED = 81, + PERF_RECORD_FINISHED_INIT = 82, + PERF_RECORD_HEADER_MAX +}; + +union perf_event { + struct perf_event_header header; + struct perf_record_mmap mmap; + struct perf_record_mmap2 mmap2; + struct perf_record_comm comm; + struct perf_record_namespaces namespaces; + struct perf_record_cgroup cgroup; + struct perf_record_fork fork; + struct perf_record_lost lost; + struct perf_record_lost_samples lost_samples; + struct perf_record_read read; + struct perf_record_throttle throttle; + struct perf_record_sample sample; + struct perf_record_bpf_event bpf; + struct perf_record_ksymbol ksymbol; + struct perf_record_text_poke_event text_poke; + struct perf_record_header_attr attr; + struct perf_record_event_update event_update; + struct perf_record_header_event_type event_type; + struct perf_record_header_tracing_data tracing_data; + struct perf_record_header_build_id build_id; + struct perf_record_id_index id_index; + struct perf_record_auxtrace_info auxtrace_info; + struct perf_record_auxtrace auxtrace; + struct perf_record_auxtrace_error auxtrace_error; + struct perf_record_aux aux; + struct perf_record_itrace_start itrace_start; + struct perf_record_aux_output_hw_id aux_output_hw_id; + struct perf_record_switch context_switch; + struct perf_record_thread_map thread_map; + struct perf_record_cpu_map cpu_map; + struct perf_record_stat_config stat_config; + struct perf_record_stat stat; + struct perf_record_stat_round stat_round; + struct perf_record_time_conv time_conv; + struct perf_record_header_feature feat; + struct perf_record_compressed pack; +}; + +#endif /* __LIBPERF_EVENT_H */ diff --git a/tools/lib/perf/include/perf/evlist.h b/tools/lib/perf/include/perf/evlist.h new file mode 100644 index 000000000..9ca399d49 --- /dev/null +++ b/tools/lib/perf/include/perf/evlist.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_EVLIST_H +#define __LIBPERF_EVLIST_H + +#include <perf/core.h> +#include <stdbool.h> + +struct perf_evlist; +struct perf_evsel; +struct perf_cpu_map; +struct perf_thread_map; + +LIBPERF_API void perf_evlist__add(struct perf_evlist *evlist, + struct perf_evsel *evsel); +LIBPERF_API void perf_evlist__remove(struct perf_evlist *evlist, + struct perf_evsel *evsel); +LIBPERF_API struct perf_evlist *perf_evlist__new(void); +LIBPERF_API void perf_evlist__delete(struct perf_evlist *evlist); +LIBPERF_API struct perf_evsel* perf_evlist__next(struct perf_evlist *evlist, + struct perf_evsel *evsel); +LIBPERF_API int perf_evlist__open(struct perf_evlist *evlist); +LIBPERF_API void perf_evlist__close(struct perf_evlist *evlist); +LIBPERF_API void perf_evlist__enable(struct perf_evlist *evlist); +LIBPERF_API void perf_evlist__disable(struct perf_evlist *evlist); + +#define perf_evlist__for_each_evsel(evlist, pos) \ + for ((pos) = perf_evlist__next((evlist), NULL); \ + (pos) != NULL; \ + (pos) = perf_evlist__next((evlist), (pos))) + +LIBPERF_API void perf_evlist__set_maps(struct perf_evlist *evlist, + struct perf_cpu_map *cpus, + struct perf_thread_map *threads); +LIBPERF_API int perf_evlist__poll(struct perf_evlist *evlist, int timeout); +LIBPERF_API int perf_evlist__filter_pollfd(struct perf_evlist *evlist, + short revents_and_mask); + +LIBPERF_API int perf_evlist__mmap(struct perf_evlist *evlist, int pages); +LIBPERF_API void perf_evlist__munmap(struct perf_evlist *evlist); + +LIBPERF_API struct perf_mmap *perf_evlist__next_mmap(struct perf_evlist *evlist, + struct perf_mmap *map, + bool overwrite); +#define perf_evlist__for_each_mmap(evlist, pos, overwrite) \ + for ((pos) = perf_evlist__next_mmap((evlist), NULL, overwrite); \ + (pos) != NULL; \ + (pos) = perf_evlist__next_mmap((evlist), (pos), overwrite)) + +LIBPERF_API void perf_evlist__set_leader(struct perf_evlist *evlist); +#endif /* __LIBPERF_EVLIST_H */ diff --git a/tools/lib/perf/include/perf/evsel.h b/tools/lib/perf/include/perf/evsel.h new file mode 100644 index 000000000..6f9220407 --- /dev/null +++ b/tools/lib/perf/include/perf/evsel.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_EVSEL_H +#define __LIBPERF_EVSEL_H + +#include <stdint.h> +#include <perf/core.h> +#include <stdbool.h> +#include <linux/types.h> + +struct perf_evsel; +struct perf_event_attr; +struct perf_cpu_map; +struct perf_thread_map; + +struct perf_counts_values { + union { + struct { + uint64_t val; + uint64_t ena; + uint64_t run; + uint64_t id; + uint64_t lost; + }; + uint64_t values[5]; + }; +}; + +LIBPERF_API struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr); +LIBPERF_API void perf_evsel__delete(struct perf_evsel *evsel); +LIBPERF_API int perf_evsel__open(struct perf_evsel *evsel, struct perf_cpu_map *cpus, + struct perf_thread_map *threads); +LIBPERF_API void perf_evsel__close(struct perf_evsel *evsel); +LIBPERF_API void perf_evsel__close_cpu(struct perf_evsel *evsel, int cpu_map_idx); +LIBPERF_API int perf_evsel__mmap(struct perf_evsel *evsel, int pages); +LIBPERF_API void perf_evsel__munmap(struct perf_evsel *evsel); +LIBPERF_API void *perf_evsel__mmap_base(struct perf_evsel *evsel, int cpu_map_idx, int thread); +LIBPERF_API int perf_evsel__read(struct perf_evsel *evsel, int cpu_map_idx, int thread, + struct perf_counts_values *count); +LIBPERF_API int perf_evsel__enable(struct perf_evsel *evsel); +LIBPERF_API int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu_map_idx); +LIBPERF_API int perf_evsel__enable_thread(struct perf_evsel *evsel, int thread); +LIBPERF_API int perf_evsel__disable(struct perf_evsel *evsel); +LIBPERF_API int perf_evsel__disable_cpu(struct perf_evsel *evsel, int cpu_map_idx); +LIBPERF_API struct perf_cpu_map *perf_evsel__cpus(struct perf_evsel *evsel); +LIBPERF_API struct perf_thread_map *perf_evsel__threads(struct perf_evsel *evsel); +LIBPERF_API struct perf_event_attr *perf_evsel__attr(struct perf_evsel *evsel); +LIBPERF_API void perf_counts_values__scale(struct perf_counts_values *count, + bool scale, __s8 *pscaled); + +#endif /* __LIBPERF_EVSEL_H */ diff --git a/tools/lib/perf/include/perf/mmap.h b/tools/lib/perf/include/perf/mmap.h new file mode 100644 index 000000000..9508ad90d --- /dev/null +++ b/tools/lib/perf/include/perf/mmap.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_MMAP_H +#define __LIBPERF_MMAP_H + +#include <perf/core.h> + +struct perf_mmap; +union perf_event; + +LIBPERF_API void perf_mmap__consume(struct perf_mmap *map); +LIBPERF_API int perf_mmap__read_init(struct perf_mmap *map); +LIBPERF_API void perf_mmap__read_done(struct perf_mmap *map); +LIBPERF_API union perf_event *perf_mmap__read_event(struct perf_mmap *map); + +#endif /* __LIBPERF_MMAP_H */ diff --git a/tools/lib/perf/include/perf/threadmap.h b/tools/lib/perf/include/perf/threadmap.h new file mode 100644 index 000000000..8b40e7777 --- /dev/null +++ b/tools/lib/perf/include/perf/threadmap.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_THREADMAP_H +#define __LIBPERF_THREADMAP_H + +#include <perf/core.h> +#include <sys/types.h> + +struct perf_thread_map; + +LIBPERF_API struct perf_thread_map *perf_thread_map__new_dummy(void); +LIBPERF_API struct perf_thread_map *perf_thread_map__new_array(int nr_threads, pid_t *array); + +LIBPERF_API void perf_thread_map__set_pid(struct perf_thread_map *map, int idx, pid_t pid); +LIBPERF_API char *perf_thread_map__comm(struct perf_thread_map *map, int idx); +LIBPERF_API int perf_thread_map__nr(struct perf_thread_map *threads); +LIBPERF_API pid_t perf_thread_map__pid(struct perf_thread_map *map, int idx); + +LIBPERF_API struct perf_thread_map *perf_thread_map__get(struct perf_thread_map *map); +LIBPERF_API void perf_thread_map__put(struct perf_thread_map *map); + +#endif /* __LIBPERF_THREADMAP_H */ |