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         FIELD_IS_FLAG           = 32,
  33         FIELD_IS_SYMBOLIC       = 64,
  34 };
  35
  36 struct format_field {
  37         struct format_field     *next;
  38         char                    *type;
  39         char                    *name;
  40         int                     offset;
  41         int                     size;
  42         unsigned long           flags;
  43 };
  44
  45 struct format {
  46         int                     nr_common;
  47         int                     nr_fields;
  48         struct format_field     *common_fields;
  49         struct format_field     *fields;
  50 };
  51
  52 struct print_arg_atom {
  53         char                    *atom;
  54 };
  55
  56 struct print_arg_string {
  57         char                    *string;
  58         int                     offset;
  59 };
  60
  61 struct print_arg_field {
  62         char                    *name;
  63         struct format_field     *field;
  64 };
  65
  66 struct print_flag_sym {
  67         struct print_flag_sym   *next;
  68         char                    *value;
  69         char                    *str;
  70 };
  71
  72 struct print_arg_typecast {
  73         char                    *type;
  74         struct print_arg        *item;
  75 };
  76
  77 struct print_arg_flags {
  78         struct print_arg        *field;
  79         char                    *delim;
  80         struct print_flag_sym   *flags;
  81 };
  82
  83 struct print_arg_symbol {
  84         struct print_arg        *field;
  85         struct print_flag_sym   *symbols;
  86 };
  87
  88 struct print_arg;
  89
  90 struct print_arg_op {
  91         char                    *op;
  92         int                     prio;
  93         struct print_arg        *left;
  94         struct print_arg        *right;
  95 };
  96
  97 struct print_arg_func {
  98         char                    *name;
  99         struct print_arg        *args;
 100 };
 101
 102 enum print_arg_type {
 103         PRINT_NULL,
 104         PRINT_ATOM,
 105         PRINT_FIELD,
 106         PRINT_FLAGS,
 107         PRINT_SYMBOL,
 108         PRINT_TYPE,
 109         PRINT_STRING,
 110         PRINT_OP,
 111 };
 112
 113 struct print_arg {
 114         struct print_arg                *next;
 115         enum print_arg_type             type;
 116         union {
 117                 struct print_arg_atom           atom;
 118                 struct print_arg_field          field;
 119                 struct print_arg_typecast       typecast;
 120                 struct print_arg_flags          flags;
 121                 struct print_arg_symbol         symbol;
 122                 struct print_arg_func           func;
 123                 struct print_arg_string         string;
 124                 struct print_arg_op             op;
 125         };
 126 };
 127
 128 struct print_fmt {
 129         char                    *format;
 130         struct print_arg        *args;
 131 };
 132
 133 struct event {
 134         struct event            *next;
 135         char                    *name;
 136         int                     id;
 137         int                     flags;
 138         struct format           format;
 139         struct print_fmt        print_fmt;
 140         char                    *system;
 141 };
 142
 143 enum {
 144         EVENT_FL_ISFTRACE       = 0x01,
 145         EVENT_FL_ISPRINT        = 0x02,
 146         EVENT_FL_ISBPRINT       = 0x04,
 147         EVENT_FL_ISFUNC         = 0x08,
 148         EVENT_FL_ISFUNCENT      = 0x10,
 149         EVENT_FL_ISFUNCRET      = 0x20,
 150
 151         EVENT_FL_FAILED         = 0x80000000
 152 };
 153
 154 struct record {
 155         unsigned long long ts;
 156         int size;
 157         void *data;
 158 };
 159
 160 struct record *trace_peek_data(int cpu);
 161 struct record *trace_read_data(int cpu);
 162
 163 void parse_set_info(int nr_cpus, int long_sz);
 164
 165 void trace_report(int fd);
 166
 167 void *malloc_or_die(unsigned int size);
 168
 169 void parse_cmdlines(char *file, int size);
 170 void parse_proc_kallsyms(char *file, unsigned int size);
 171 void parse_ftrace_printk(char *file, unsigned int size);
 172
 173 void print_funcs(void);
 174 void print_printk(void);
 175
 176 int parse_ftrace_file(char *buf, unsigned long size);
 177 int parse_event_file(char *buf, unsigned long size, char *sys);
 178 void print_event(int cpu, void *data, int size, unsigned long long nsecs,
 179                   char *comm);
 180
 181 extern int file_bigendian;
 182 extern int host_bigendian;
 183
 184 int bigendian(void);
 185
 186 static inline unsigned short __data2host2(unsigned short data)
 187 {
 188         unsigned short swap;
 189
 190         if (host_bigendian == file_bigendian)
 191                 return data;
 192
 193         swap = ((data & 0xffULL) << 8) |
 194                 ((data & (0xffULL << 8)) >> 8);
 195
 196         return swap;
 197 }
 198
 199 static inline unsigned int __data2host4(unsigned int data)
 200 {
 201         unsigned int swap;
 202
 203         if (host_bigendian == file_bigendian)
 204                 return data;
 205
 206         swap = ((data & 0xffULL) << 24) |
 207                 ((data & (0xffULL << 8)) << 8) |
 208                 ((data & (0xffULL << 16)) >> 8) |
 209                 ((data & (0xffULL << 24)) >> 24);
 210
 211         return swap;
 212 }
 213
 214 static inline unsigned long long __data2host8(unsigned long long data)
 215 {
 216         unsigned long long swap;
 217
 218         if (host_bigendian == file_bigendian)
 219                 return data;
 220
 221         swap = ((data & 0xffULL) << 56) |
 222                 ((data & (0xffULL << 8)) << 40) |
 223                 ((data & (0xffULL << 16)) << 24) |
 224                 ((data & (0xffULL << 24)) << 8) |
 225                 ((data & (0xffULL << 32)) >> 8) |
 226                 ((data & (0xffULL << 40)) >> 24) |
 227                 ((data & (0xffULL << 48)) >> 40) |
 228                 ((data & (0xffULL << 56)) >> 56);
 229
 230         return swap;
 231 }
 232
 233 #define data2host2(ptr)         __data2host2(*(unsigned short *)ptr)
 234 #define data2host4(ptr)         __data2host4(*(unsigned int *)ptr)
 235 #define data2host8(ptr)         __data2host8(*(unsigned long long *)ptr)
 236
 237 extern int header_page_ts_offset;
 238 extern int header_page_ts_size;
 239 extern int header_page_size_offset;
 240 extern int header_page_size_size;
 241 extern int header_page_data_offset;
 242 extern int header_page_data_size;
 243
 244 extern int latency_format;
 245
 246 int parse_header_page(char *buf, unsigned long size);
 247 int trace_parse_common_type(void *data);
 248 int trace_parse_common_pid(void *data);
 249 int parse_common_pc(void *data);
 250 int parse_common_flags(void *data);
 251 int parse_common_lock_depth(void *data);
 252 struct event *trace_find_event(int id);
 253 struct event *trace_find_next_event(struct event *event);
 254 unsigned long long read_size(void *ptr, int size);
 255 unsigned long long
 256 raw_field_value(struct event *event, const char *name, void *data);
 257 void *raw_field_ptr(struct event *event, const char *name, void *data);
 258 unsigned long long eval_flag(const char *flag);
 259
 260 int read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events);
 261
 262 /* taken from kernel/trace/trace.h */
 263 enum trace_flag_type {
 264         TRACE_FLAG_IRQS_OFF             = 0x01,
 265         TRACE_FLAG_IRQS_NOSUPPORT       = 0x02,
 266         TRACE_FLAG_NEED_RESCHED         = 0x04,
 267         TRACE_FLAG_HARDIRQ              = 0x08,
 268         TRACE_FLAG_SOFTIRQ              = 0x10,
 269 };
 270
 271 struct scripting_ops {
 272         const char *name;
 273         int (*start_script) (const char *script, int argc, const char **argv);
 274         int (*stop_script) (void);
 275         void (*process_event) (int cpu, void *data, int size,
 276                                unsigned long long nsecs, char *comm);
 277         int (*generate_script) (const char *outfile);
 278 };
 279
 280 int script_spec_register(const char *spec, struct scripting_ops *ops);
 281
 282 void setup_perl_scripting(void);
 283 void setup_python_scripting(void);
 284
 285 struct scripting_context {
 286         void *event_data;
 287 };
 288
 289 int common_pc(struct scripting_context *context);
 290 int common_flags(struct scripting_context *context);
 291 int common_lock_depth(struct scripting_context *context);
 292
 293 #endif /* __PERF_TRACE_EVENTS_H */