tools/perf/util/trace-event.h

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