text: #ifndef __PERF_RECORD_H
  #define __PERF_RECORD_H
  
  #include <limits.h>
  #include <stdio.h>
  
  #include "../perf.h"
  #include "map.h"
  #include "build-id.h"
  #include "perf_regs.h"
  
  struct mmap_event {
  	struct perf_event_header header;
  	u32 pid, tid;
  	u64 start;
  	u64 len;
  	u64 pgoff;
  	char filename[PATH_MAX];
  };
  
  struct mmap2_event {
  	struct perf_event_header header;
  	u32 pid, tid;
  	u64 start;
  	u64 len;
  	u64 pgoff;
  	u32 maj;
  	u32 min;
  	u64 ino;
  	u64 ino_generation;
  	u32 prot;
  	u32 flags;
  	char filename[PATH_MAX];
  };
  
  struct comm_event {
  	struct perf_event_header header;
  	u32 pid, tid;
  	char comm[16];
  };
  
  struct fork_event {
  	struct perf_event_header header;
  	u32 pid, ppid;
  	u32 tid, ptid;
  	u64 time;
  };
  
  struct lost_event {
  	struct perf_event_header header;
  	u64 id;
  	u64 lost;
  };
  
  struct lost_samples_event {
  	struct perf_event_header header;
  	u64 lost;
  };
  
  /*
   * PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID
   */
  struct read_event {
  	struct perf_event_header header;
  	u32 pid, tid;
  	u64 value;
  	u64 time_enabled;
  	u64 time_running;
  	u64 id;
  };
  
  struct throttle_event {
  	struct perf_event_header header;
  	u64 time;
  	u64 id;
  	u64 stream_id;
  };
  
  #define PERF_SAMPLE_MASK				\
  	(PERF_SAMPLE_IP | PERF_SAMPLE_TID |		\
  	 PERF_SAMPLE_TIME | PERF_SAMPLE_ADDR |		\
  	PERF_SAMPLE_ID | PERF_SAMPLE_STREAM_ID |	\
  	 PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD |		\
  	 PERF_SAMPLE_IDENTIFIER)
  
  /* perf sample has 16 bits size limit */
  #define PERF_SAMPLE_MAX_SIZE (1 << 16)
  
  struct sample_event {
  	struct perf_event_header        header;
  	u64 array[];
  };
  
  struct regs_dump {
  	u64 abi;
  	u64 mask;
  	u64 *regs;
  
  	/* Cached values/mask filled by first register access. */
  	u64 cache_regs[PERF_REGS_MAX];
  	u64 cache_mask;
  };
  
  struct stack_dump {
  	u16 offset;
  	u64 size;
  	char *data;
  };
  
  struct sample_read_value {
  	u64 value;
  	u64 id;
  };
  
  struct sample_read {
  	u64 time_enabled;
  	u64 time_running;
  	union {
  		struct {
  			u64 nr;
  			struct sample_read_value *values;
  		} group;
  		struct sample_read_value one;
  	};
  };
  
  struct ip_callchain {
  	u64 nr;
  	u64 ips[0];
  };
  
  struct branch_flags {
  	u64 mispred:1;
  	u64 predicted:1;
  	u64 in_tx:1;
  	u64 abort:1;
  	u64 cycles:16;
  	u64 reserved:44;
  };
  
  struct branch_entry {
  	u64			from;
  	u64			to;
  	struct branch_flags	flags;
  };
  
  struct branch_stack {
  	u64			nr;
  	struct branch_entry	entries[0];
  };
  
  enum {
  	PERF_IP_FLAG_BRANCH		= 1ULL << 0,
  	PERF_IP_FLAG_CALL		= 1ULL << 1,
  	PERF_IP_FLAG_RETURN		= 1ULL << 2,
  	PERF_IP_FLAG_CONDITIONAL	= 1ULL << 3,
  	PERF_IP_FLAG_SYSCALLRET		= 1ULL << 4,
  	PERF_IP_FLAG_ASYNC		= 1ULL << 5,
  	PERF_IP_FLAG_INTERRUPT		= 1ULL << 6,
  	PERF_IP_FLAG_TX_ABORT		= 1ULL << 7,
  	PERF_IP_FLAG_TRACE_BEGIN	= 1ULL << 8,
  	PERF_IP_FLAG_TRACE_END		= 1ULL << 9,
  	PERF_IP_FLAG_IN_TX		= 1ULL << 10,
  };
  
  #define PERF_IP_FLAG_CHARS "bcrosyiABEx"
  
  #define PERF_BRANCH_MASK		(\
  	PERF_IP_FLAG_BRANCH		|\
  	PERF_IP_FLAG_CALL		|\
  	PERF_IP_FLAG_RETURN		|\
  	PERF_IP_FLAG_CONDITIONAL	|\
  	PERF_IP_FLAG_SYSCALLRET		|\
  	PERF_IP_FLAG_ASYNC		|\
  	PERF_IP_FLAG_INTERRUPT		|\
  	PERF_IP_FLAG_TX_ABORT		|\
  	PERF_IP_FLAG_TRACE_BEGIN	|\
  	PERF_IP_FLAG_TRACE_END)
  
  struct perf_sample {
  	u64 ip;
  	u32 pid, tid;
  	u64 time;
  	u64 addr;
  	u64 id;
  	u64 stream_id;
  	u64 period;
  	u64 weight;
  	u64 transaction;
  	u32 cpu;
  	u32 raw_size;
  	u64 data_src;
  	u32 flags;
  	u16 insn_len;
  	void *raw_data;
  	struct ip_callchain *callchain;
  	struct branch_stack *branch_stack;
  	struct regs_dump  user_regs;
  	struct regs_dump  intr_regs;
  	struct stack_dump user_stack;
  	struct sample_read read;
  };
  
  #define PERF_MEM_DATA_SRC_NONE \
  	(PERF_MEM_S(OP, NA) |\
  	 PERF_MEM_S(LVL, NA) |\
  	 PERF_MEM_S(SNOOP, NA) |\
  	 PERF_MEM_S(LOCK, NA) |\
  	 PERF_MEM_S(TLB, NA))
  
  struct build_id_event {
  	struct perf_event_header header;
  	pid_t			 pid;
  	u8			 build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))];
  	char			 filename[];
  };
  
  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, /* depreceated */
  	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_HEADER_MAX
  };
  
  enum auxtrace_error_type {
  	PERF_AUXTRACE_ERROR_ITRACE  = 1,
  	PERF_AUXTRACE_ERROR_MAX
  };
  
  /*
   * The kernel collects the number of events it couldn't send in a stretch and
   * when possible sends this number in a PERF_RECORD_LOST event. The number of
   * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
   * total_lost tells exactly how many events the kernel in fact lost, i.e. it is
   * the sum of all struct lost_event.lost fields reported.
   *
   * The kernel discards mixed up samples and sends the number in a
   * PERF_RECORD_LOST_SAMPLES event. The number of lost-samples events is stored
   * in .nr_events[PERF_RECORD_LOST_SAMPLES] while total_lost_samples tells
   * exactly how many samples the kernel in fact dropped, i.e. it is the sum of
   * all struct lost_samples_event.lost fields reported.
   *
   * The total_period is needed because by default auto-freq is used, so
   * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
   * the total number of low level events, it is necessary to to sum all struct
   * sample_event.period and stash the result in total_period.
   */
  struct events_stats {
  	u64 total_period;
  	u64 total_non_filtered_period;
  	u64 total_lost;
  	u64 total_lost_samples;
  	u64 total_aux_lost;
  	u64 total_invalid_chains;
  	u32 nr_events[PERF_RECORD_HEADER_MAX];
  	u32 nr_non_filtered_samples;
  	u32 nr_lost_warned;
  	u32 nr_unknown_events;
  	u32 nr_invalid_chains;
  	u32 nr_unknown_id;
  	u32 nr_unprocessable_samples;
  	u32 nr_auxtrace_errors[PERF_AUXTRACE_ERROR_MAX];
  	u32 nr_proc_map_timeout;
  };
  
  enum {
  	PERF_CPU_MAP__CPUS = 0,
  	PERF_CPU_MAP__MASK = 1,
  };
  
  struct cpu_map_entries {
  	u16	nr;
  	u16	cpu[];
  };
  
  struct cpu_map_mask {
  	u16	nr;
  	u16	long_size;
  	unsigned long mask[];
  };
  
  struct cpu_map_data {
  	u16	type;
  	char	data[];
  };
  
  struct cpu_map_event {
  	struct perf_event_header	header;
  	struct cpu_map_data		data;
  };
  
  struct attr_event {
  	struct perf_event_header header;
  	struct perf_event_attr attr;
  	u64 id[];
  };
  
  enum {
  	PERF_EVENT_UPDATE__UNIT  = 0,
  	PERF_EVENT_UPDATE__SCALE = 1,
  	PERF_EVENT_UPDATE__NAME  = 2,
  	PERF_EVENT_UPDATE__CPUS  = 3,
  };
  
  struct event_update_event_cpus {
  	struct cpu_map_data cpus;
  };
  
  struct event_update_event_scale {
  	double scale;
  };
  
  struct event_update_event {
  	struct perf_event_header header;
  	u64 type;
  	u64 id;
  
  	char data[];
  };
  
  #define MAX_EVENT_NAME 64
  
  struct perf_trace_event_type {
  	u64	event_id;
  	char	name[MAX_EVENT_NAME];
  };
  
  struct event_type_event {
  	struct perf_event_header header;
  	struct perf_trace_event_type event_type;
  };
  
  struct tracing_data_event {
  	struct perf_event_header header;
  	u32 size;
  };
  
  struct id_index_entry {
  	u64 id;
  	u64 idx;
  	u64 cpu;
  	u64 tid;
  };
  
  struct id_index_event {
  	struct perf_event_header header;
  	u64 nr;
  	struct id_index_entry entries[0];
  };
  
  struct auxtrace_info_event {
  	struct perf_event_header header;
  	u32 type;
  	u32 reserved__; /* For alignment */
  	u64 priv[];
  };
  
  struct auxtrace_event {
  	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 auxtrace_error_event {
  	struct perf_event_header header;
  	u32 type;
  	u32 code;
  	u32 cpu;
  	u32 pid;
  	u32 tid;
  	u32 reserved__; /* For alignment */
  	u64 ip;
  	char msg[MAX_AUXTRACE_ERROR_MSG];
  };
  
  struct aux_event {
  	struct perf_event_header header;
  	u64	aux_offset;
  	u64	aux_size;
  	u64	flags;
  };
  
  struct itrace_start_event {
  	struct perf_event_header header;
  	u32 pid, tid;
  };
  
  struct context_switch_event {
  	struct perf_event_header header;
  	u32 next_prev_pid;
  	u32 next_prev_tid;
  };
  
  struct thread_map_event_entry {
  	u64	pid;
  	char	comm[16];
  };
  
  struct thread_map_event {
  	struct perf_event_header	header;
  	u64				nr;
  	struct thread_map_event_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 stat_config_event_entry {
  	u64	tag;
  	u64	val;
  };
  
  struct stat_config_event {
  	struct perf_event_header	header;
  	u64				nr;
  	struct stat_config_event_entry	data[];
  };
  
  struct stat_event {
  	struct perf_event_header	header;
  
  	u64	id;
  	u32	cpu;
  	u32	thread;
  
  	union {
  		struct {
  			u64 val;
  			u64 ena;
  			u64 run;
  		};
  		u64 values[3];
  	};
  };
  
  enum {
  	PERF_STAT_ROUND_TYPE__INTERVAL	= 0,
  	PERF_STAT_ROUND_TYPE__FINAL	= 1,
  };
  
  struct stat_round_event {
  	struct perf_event_header	header;
  	u64				type;
  	u64				time;
  };
  
  union perf_event {
  	struct perf_event_header	header;
  	struct mmap_event		mmap;
  	struct mmap2_event		mmap2;
  	struct comm_event		comm;
  	struct fork_event		fork;
  	struct lost_event		lost;
  	struct lost_samples_event	lost_samples;
  	struct read_event		read;
  	struct throttle_event		throttle;
  	struct sample_event		sample;
  	struct attr_event		attr;
  	struct event_update_event	event_update;
  	struct event_type_event		event_type;
  	struct tracing_data_event	tracing_data;
  	struct build_id_event		build_id;
  	struct id_index_event		id_index;
  	struct auxtrace_info_event	auxtrace_info;
  	struct auxtrace_event		auxtrace;
  	struct auxtrace_error_event	auxtrace_error;
  	struct aux_event		aux;
  	struct itrace_start_event	itrace_start;
  	struct context_switch_event	context_switch;
  	struct thread_map_event		thread_map;
  	struct cpu_map_event		cpu_map;
  	struct stat_config_event	stat_config;
  	struct stat_event		stat;
  	struct stat_round_event		stat_round;
  };
  
  void perf_event__print_totals(void);
  
  struct perf_tool;
  struct thread_map;
  struct cpu_map;
  struct perf_stat_config;
  struct perf_counts_values;
  
  typedef int (*perf_event__handler_t)(struct perf_tool *tool,
  				     union perf_event *event,
  				     struct perf_sample *sample,
  				     struct machine *machine);
  
  int perf_event__synthesize_thread_map(struct perf_tool *tool,
  				      struct thread_map *threads,
  				      perf_event__handler_t process,
  				      struct machine *machine, bool mmap_data,
  				      unsigned int proc_map_timeout);
  int perf_event__synthesize_thread_map2(struct perf_tool *tool,
  				      struct thread_map *threads,
  				      perf_event__handler_t process,
  				      struct machine *machine);
  int perf_event__synthesize_cpu_map(struct perf_tool *tool,
  				   struct cpu_map *cpus,
  				   perf_event__handler_t process,
  				   struct machine *machine);
  int perf_event__synthesize_threads(struct perf_tool *tool,
  				   perf_event__handler_t process,
  				   struct machine *machine, bool mmap_data,
  				   unsigned int proc_map_timeout);
  int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
  				       perf_event__handler_t process,
  				       struct machine *machine);
  int perf_event__synthesize_stat_config(struct perf_tool *tool,
  				       struct perf_stat_config *config,
  				       perf_event__handler_t process,
  				       struct machine *machine);
  void perf_event__read_stat_config(struct perf_stat_config *config,
  				  struct stat_config_event *event);
  int perf_event__synthesize_stat(struct perf_tool *tool,
  				u32 cpu, u32 thread, u64 id,
  				struct perf_counts_values *count,
  				perf_event__handler_t process,
  				struct machine *machine);
  int perf_event__synthesize_stat_round(struct perf_tool *tool,
  				      u64 time, u64 type,
  				      perf_event__handler_t process,
  				      struct machine *machine);
  int perf_event__synthesize_modules(struct perf_tool *tool,
  				   perf_event__handler_t process,
  				   struct machine *machine);
  
  int perf_event__process_comm(struct perf_tool *tool,
  			     union perf_event *event,
  			     struct perf_sample *sample,
  			     struct machine *machine);
  int perf_event__process_lost(struct perf_tool *tool,
  			     union perf_event *event,
  			     struct perf_sample *sample,
  			     struct machine *machine);
  int perf_event__process_lost_samples(struct perf_tool *tool,
  				     union perf_event *event,
  				     struct perf_sample *sample,
  				     struct machine *machine);
  int perf_event__process_aux(struct perf_tool *tool,
  			    union perf_event *event,
  			    struct perf_sample *sample,
  			    struct machine *machine);
  int perf_event__process_itrace_start(struct perf_tool *tool,
  				     union perf_event *event,
  				     struct perf_sample *sample,
  				     struct machine *machine);
  int perf_event__process_switch(struct perf_tool *tool,
  			       union perf_event *event,
  			       struct perf_sample *sample,
  			       struct machine *machine);
  int perf_event__process_mmap(struct perf_tool *tool,
  			     union perf_event *event,
  			     struct perf_sample *sample,
  			     struct machine *machine);
  int perf_event__process_mmap2(struct perf_tool *tool,
  			     union perf_event *event,
  			     struct perf_sample *sample,
  			     struct machine *machine);
  int perf_event__process_fork(struct perf_tool *tool,
  			     union perf_event *event,
  			     struct perf_sample *sample,
  			     struct machine *machine);
  int perf_event__process_exit(struct perf_tool *tool,
  			     union perf_event *event,
  			     struct perf_sample *sample,
  			     struct machine *machine);
  int perf_event__process(struct perf_tool *tool,
  			union perf_event *event,
  			struct perf_sample *sample,
  			struct machine *machine);
  
  struct addr_location;
  
  int perf_event__preprocess_sample(const union perf_event *event,
  				  struct machine *machine,
  				  struct addr_location *al,
  				  struct perf_sample *sample);
  
  void addr_location__put(struct addr_location *al);
  
  struct thread;
  
  bool is_bts_event(struct perf_event_attr *attr);
  bool sample_addr_correlates_sym(struct perf_event_attr *attr);
  void perf_event__preprocess_sample_addr(union perf_event *event,
  					struct perf_sample *sample,
  					struct thread *thread,
  					struct addr_location *al);
  
  const char *perf_event__name(unsigned int id);
  
  size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type,
  				     u64 read_format);
  int perf_event__synthesize_sample(union perf_event *event, u64 type,
  				  u64 read_format,
  				  const struct perf_sample *sample,
  				  bool swapped);
  
  pid_t perf_event__synthesize_comm(struct perf_tool *tool,
  				  union perf_event *event, pid_t pid,
  				  perf_event__handler_t process,
  				  struct machine *machine);
  
  int perf_event__synthesize_mmap_events(struct perf_tool *tool,
  				       union perf_event *event,
  				       pid_t pid, pid_t tgid,
  				       perf_event__handler_t process,
  				       struct machine *machine,
  				       bool mmap_data,
  				       unsigned int proc_map_timeout);
  
  size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp);
  size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
  size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
  size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
  size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
  size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
  size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp);
  size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp);
  size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp);
  size_t perf_event__fprintf(union perf_event *event, FILE *fp);
  
  u64 kallsyms__get_function_start(const char *kallsyms_filename,
  				 const char *symbol_name);
  
  void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max);
  void  cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map,
  			       u16 type, int max);
  #endif /* __PERF_RECORD_H */
  