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