tools/perf/util/trace-event.h

   1 #ifndef __PERF_TRACE_EVENTS_H
   2 #define __PERF_TRACE_EVENTS_H
   3
   4 #include "parse-events.h"
   5
   6 #define __unused __attribute__((unused))
   7
   8
   9 #ifndef PAGE_MASK
  10 #define PAGE_MASK (page_size - 1)
  11 #endif
  12
  13 enum {
  14         RINGBUF_TYPE_PADDING            = 29,
  15         RINGBUF_TYPE_TIME_EXTEND        = 30,
  16         RINGBUF_TYPE_TIME_STAMP         = 31,
  17 };
  18
  19 #ifndef TS_SHIFT
  20 #define TS_SHIFT                27
  21 #endif
  22
  23 #define NSECS_PER_SEC           1000000000ULL
  24 #define NSECS_PER_USEC          1000ULL
  25
  26 enum format_flags {
  27         FIELD_IS_ARRAY          = 1,
  28         FIELD_IS_POINTER        = 2,
  29         FIELD_IS_SIGNED         = 4,
  30         FIELD_IS_STRING         = 8,
  31         FIELD_IS_DYNAMIC        = 16,
  32 };
  33
  34 struct format_field {
  35         struct format_field     *next;
  36         char                    *type;
  37         char                    *name;
  38         int                     offset;
  39         int                     size;
  40         unsigned long           flags;
  41 };
  42
  43 struct format {
  44         int                     nr_common;
  45         int                     nr_fields;
  46         struct format_field     *common_fields;
  47         struct format_field     *fields;
  48 };
  49
  50 struct print_arg_atom {
  51         char                    *atom;
  52 };
  53
  54 struct print_arg_string {
  55         char                    *string;
  56         int                     offset;
  57 };
  58
  59 struct print_arg_field {
  60         char                    *name;
  61         struct format_field     *field;
  62 };
  63
  64 struct print_flag_sym {
  65         struct print_flag_sym   *next;
  66         char                    *value;
  67         char                    *str;
  68 };
  69
  70 struct print_arg_typecast {
  71         char                    *type;
  72         struct print_arg        *item;
  73 };
  74
  75 struct print_arg_flags {
  76         struct print_arg        *field;
  77         char                    *delim;
  78         struct print_flag_sym   *flags;
  79 };
  80
  81 struct print_arg_symbol {
  82         struct print_arg        *field;
  83         struct print_flag_sym   *symbols;
  84 };
  85
  86 struct print_arg;
  87
  88 struct print_arg_op {
  89         char                    *op;
  90         int                     prio;
  91         struct print_arg        *left;
  92         struct print_arg        *right;
  93 };
  94
  95 struct print_arg_func {
  96         char                    *name;
  97         struct print_arg        *args;
  98 };
  99
 100 enum print_arg_type {
 101         PRINT_NULL,
 102         PRINT_ATOM,
 103         PRINT_FIELD,
 104         PRINT_FLAGS,
 105         PRINT_SYMBOL,
 106         PRINT_TYPE,
 107         PRINT_STRING,
 108         PRINT_OP,
 109 };
 110
 111 struct print_arg {
 112         struct print_arg                *next;
 113         enum print_arg_type             type;
 114         union {
 115                 struct print_arg_atom           atom;
 116                 struct print_arg_field          field;
 117                 struct print_arg_typecast       typecast;
 118                 struct print_arg_flags          flags;
 119                 struct print_arg_symbol         symbol;
 120                 struct print_arg_func           func;
 121                 struct print_arg_string         string;
 122                 struct print_arg_op             op;
 123         };
 124 };
 125
 126 struct print_fmt {
 127         char                    *format;
 128         struct print_arg        *args;
 129 };
 130
 131 struct event {
 132         struct event            *next;
 133         char                    *name;
 134         int                     id;
 135         int                     flags;
 136         struct format           format;
 137         struct print_fmt        print_fmt;
 138         char                    *system;
 139 };
 140
 141 enum {
 142         EVENT_FL_ISFTRACE       = 0x01,
 143         EVENT_FL_ISPRINT        = 0x02,
 144         EVENT_FL_ISBPRINT       = 0x04,
 145         EVENT_FL_ISFUNC         = 0x08,
 146         EVENT_FL_ISFUNCENT      = 0x10,
 147         EVENT_FL_ISFUNCRET      = 0x20,
 148
 149         EVENT_FL_FAILED         = 0x80000000
 150 };
 151
 152 struct record {
 153         unsigned long long ts;
 154         int size;
 155         void *data;
 156 };
 157
 158 struct record *trace_peek_data(int cpu);
 159 struct record *trace_read_data(int cpu);
 160
 161 void parse_set_info(int nr_cpus, int long_sz);
 162
 163 void trace_report(int fd);
 164
 165 void *malloc_or_die(unsigned int size);
 166
 167 void parse_cmdlines(char *file, int size);
 168 void parse_proc_kallsyms(char *file, unsigned int size);
 169 void parse_ftrace_printk(char *file, unsigned int size);
 170
 171 void print_funcs(void);
 172 void print_printk(void);
 173
 174 int parse_ftrace_file(char *buf, unsigned long size);
 175 int parse_event_file(char *buf, unsigned long size, char *sys);
 176 void print_event(int cpu, void *data, int size, unsigned long long nsecs,
 177                   char *comm);
 178
 179 extern int file_bigendian;
 180 extern int host_bigendian;
 181
 182 int bigendian(void);
 183
 184 static inline unsigned short __data2host2(unsigned short data)
 185 {
 186         unsigned short swap;
 187
 188         if (host_bigendian == file_bigendian)
 189                 return data;
 190
 191         swap = ((data & 0xffULL) << 8) |
 192                 ((data & (0xffULL << 8)) >> 8);
 193
 194         return swap;
 195 }
 196
 197 static inline unsigned int __data2host4(unsigned int data)
 198 {
 199         unsigned int swap;
 200
 201         if (host_bigendian == file_bigendian)
 202                 return data;
 203
 204         swap = ((data & 0xffULL) << 24) |
 205                 ((data & (0xffULL << 8)) << 8) |
 206                 ((data & (0xffULL << 16)) >> 8) |
 207                 ((data & (0xffULL << 24)) >> 24);
 208
 209         return swap;
 210 }
 211
 212 static inline unsigned long long __data2host8(unsigned long long data)
 213 {
 214         unsigned long long swap;
 215
 216         if (host_bigendian == file_bigendian)
 217                 return data;
 218
 219         swap = ((data & 0xffULL) << 56) |
 220                 ((data & (0xffULL << 8)) << 40) |
 221                 ((data & (0xffULL << 16)) << 24) |
 222                 ((data & (0xffULL << 24)) << 8) |
 223                 ((data & (0xffULL << 32)) >> 8) |
 224                 ((data & (0xffULL << 40)) >> 24) |
 225                 ((data & (0xffULL << 48)) >> 40) |
 226                 ((data & (0xffULL << 56)) >> 56);
 227
 228         return swap;
 229 }
 230
 231 #define data2host2(ptr)         __data2host2(*(unsigned short *)ptr)
 232 #define data2host4(ptr)         __data2host4(*(unsigned int *)ptr)
 233 #define data2host8(ptr)         __data2host8(*(unsigned long long *)ptr)
 234
 235 extern int header_page_ts_offset;
 236 extern int header_page_ts_size;
 237 extern int header_page_size_offset;
 238 extern int header_page_size_size;
 239 extern int header_page_data_offset;
 240 extern int header_page_data_size;
 241
 242 int parse_header_page(char *buf, unsigned long size);
 243 int trace_parse_common_type(void *data);
 244 struct event *trace_find_event(int id);
 245 unsigned long long
 246 raw_field_value(struct event *event, const char *name, void *data);
 247 void *raw_field_ptr(struct event *event, const char *name, void *data);
 248
 249 void read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events);
 250
 251 #endif /* __PERF_TRACE_EVENTS_H */