/* 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;
};
#define PERF_RECORD_MISC_LOST_SAMPLES_BPF (1 << 15)
struct perf_record_lost_samples {
struct perf_event_header header;
__u64 lost;
};
#define MAX_ID_HDR_ENTRIES 6
struct perf_record_lost_samples_and_ids {
struct perf_record_lost_samples lost;
__u64 sample_ids[MAX_ID_HDR_ENTRIES];
};
/*
* 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;
/*
* Array of u64 id follows here but we cannot use a flexible array
* because size of attr in the data can be different then current
* version. Please use perf_record_header_attr_id() below.
*
* __u64 id[]; // do not use this
*/
};
/* Returns the pointer to id array based on the actual attr size. */
#define perf_record_header_attr_id(evt) \
((void *)&(evt)->attr.attr + (evt)->attr.attr.size)
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__AGGR_LEVEL = 3,
PERF_STAT_CONFIG_TERM__MAX = 4,
};
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 */
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