tools/perf/util/trace-event.h

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