include/side/trace.h

   1 // SPDX-License-Identifier: MIT
   2 /*
   3  * Copyright 2022 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   4  */
   5
   6 #ifndef _SIDE_TRACE_H
   7 #define _SIDE_TRACE_H
   8
   9 #include <stdint.h>
  10 #include <inttypes.h>
  11 #include <stdlib.h>
  12 #include <stdio.h>
  13 #include <math.h>
  14 #include <side/macros.h>
  15
  16 /* SIDE stands for "Static Instrumentation Dynamically Enabled" */
  17
  18 //TODO: as those structures will be ABI, we need to either consider them
  19 //fixed forever, or think of a scheme that would allow their binary
  20 //representation to be extended if need be.
  21
  22 struct side_arg_vec;
  23 struct side_arg_vec_description;
  24 struct side_arg_dynamic_vec;
  25 struct side_arg_dynamic_vec_vla;
  26 struct side_type_description;
  27 struct side_event_field;
  28 struct side_tracer_visitor_ctx;
  29 struct side_tracer_dynamic_struct_visitor_ctx;
  30 struct side_tracer_dynamic_vla_visitor_ctx;
  31 struct side_event_description;
  32 struct side_arg_dynamic_event_struct;
  33
  34 enum side_type {
  35         SIDE_TYPE_BOOL,
  36
  37         SIDE_TYPE_U8,
  38         SIDE_TYPE_U16,
  39         SIDE_TYPE_U32,
  40         SIDE_TYPE_U64,
  41         SIDE_TYPE_S8,
  42         SIDE_TYPE_S16,
  43         SIDE_TYPE_S32,
  44         SIDE_TYPE_S64,
  45         SIDE_TYPE_BLOB,
  46
  47         SIDE_TYPE_ENUM_U8,
  48         SIDE_TYPE_ENUM_U16,
  49         SIDE_TYPE_ENUM_U32,
  50         SIDE_TYPE_ENUM_U64,
  51         SIDE_TYPE_ENUM_S8,
  52         SIDE_TYPE_ENUM_S16,
  53         SIDE_TYPE_ENUM_S32,
  54         SIDE_TYPE_ENUM_S64,
  55
  56         SIDE_TYPE_ENUM_BITMAP8,
  57         SIDE_TYPE_ENUM_BITMAP16,
  58         SIDE_TYPE_ENUM_BITMAP32,
  59         SIDE_TYPE_ENUM_BITMAP64,
  60
  61         SIDE_TYPE_FLOAT_BINARY16,
  62         SIDE_TYPE_FLOAT_BINARY32,
  63         SIDE_TYPE_FLOAT_BINARY64,
  64         SIDE_TYPE_FLOAT_BINARY128,
  65
  66         SIDE_TYPE_STRING,
  67
  68         SIDE_TYPE_STRUCT,
  69         SIDE_TYPE_ARRAY,
  70         SIDE_TYPE_VLA,
  71         SIDE_TYPE_VLA_VISITOR,
  72
  73         SIDE_TYPE_ARRAY_U8,
  74         SIDE_TYPE_ARRAY_U16,
  75         SIDE_TYPE_ARRAY_U32,
  76         SIDE_TYPE_ARRAY_U64,
  77         SIDE_TYPE_ARRAY_S8,
  78         SIDE_TYPE_ARRAY_S16,
  79         SIDE_TYPE_ARRAY_S32,
  80         SIDE_TYPE_ARRAY_S64,
  81         SIDE_TYPE_ARRAY_BLOB,
  82
  83         SIDE_TYPE_VLA_U8,
  84         SIDE_TYPE_VLA_U16,
  85         SIDE_TYPE_VLA_U32,
  86         SIDE_TYPE_VLA_U64,
  87         SIDE_TYPE_VLA_S8,
  88         SIDE_TYPE_VLA_S16,
  89         SIDE_TYPE_VLA_S32,
  90         SIDE_TYPE_VLA_S64,
  91         SIDE_TYPE_VLA_BLOB,
  92
  93         SIDE_TYPE_DYNAMIC,
  94 };
  95
  96 enum side_dynamic_type {
  97         SIDE_DYNAMIC_TYPE_NULL,
  98
  99         SIDE_DYNAMIC_TYPE_BOOL,
 100
 101         SIDE_DYNAMIC_TYPE_U8,
 102         SIDE_DYNAMIC_TYPE_U16,
 103         SIDE_DYNAMIC_TYPE_U32,
 104         SIDE_DYNAMIC_TYPE_U64,
 105         SIDE_DYNAMIC_TYPE_S8,
 106         SIDE_DYNAMIC_TYPE_S16,
 107         SIDE_DYNAMIC_TYPE_S32,
 108         SIDE_DYNAMIC_TYPE_S64,
 109         SIDE_DYNAMIC_TYPE_BLOB,
 110
 111         SIDE_DYNAMIC_TYPE_FLOAT_BINARY16,
 112         SIDE_DYNAMIC_TYPE_FLOAT_BINARY32,
 113         SIDE_DYNAMIC_TYPE_FLOAT_BINARY64,
 114         SIDE_DYNAMIC_TYPE_FLOAT_BINARY128,
 115
 116         SIDE_DYNAMIC_TYPE_STRING,
 117
 118         SIDE_DYNAMIC_TYPE_STRUCT,
 119         SIDE_DYNAMIC_TYPE_STRUCT_VISITOR,
 120
 121         SIDE_DYNAMIC_TYPE_VLA,
 122         SIDE_DYNAMIC_TYPE_VLA_VISITOR,
 123 };
 124
 125 enum side_attr_type {
 126         SIDE_ATTR_TYPE_BOOL,
 127
 128         SIDE_ATTR_TYPE_U8,
 129         SIDE_ATTR_TYPE_U16,
 130         SIDE_ATTR_TYPE_U32,
 131         SIDE_ATTR_TYPE_U64,
 132         SIDE_ATTR_TYPE_S8,
 133         SIDE_ATTR_TYPE_S16,
 134         SIDE_ATTR_TYPE_S32,
 135         SIDE_ATTR_TYPE_S64,
 136
 137         SIDE_ATTR_TYPE_FLOAT_BINARY16,
 138         SIDE_ATTR_TYPE_FLOAT_BINARY32,
 139         SIDE_ATTR_TYPE_FLOAT_BINARY64,
 140         SIDE_ATTR_TYPE_FLOAT_BINARY128,
 141
 142         SIDE_ATTR_TYPE_STRING,
 143 };
 144
 145 enum side_loglevel {
 146         SIDE_LOGLEVEL_EMERG = 0,
 147         SIDE_LOGLEVEL_ALERT = 1,
 148         SIDE_LOGLEVEL_CRIT = 2,
 149         SIDE_LOGLEVEL_ERR = 3,
 150         SIDE_LOGLEVEL_WARNING = 4,
 151         SIDE_LOGLEVEL_NOTICE = 5,
 152         SIDE_LOGLEVEL_INFO = 6,
 153         SIDE_LOGLEVEL_DEBUG = 7,
 154 };
 155
 156 enum side_visitor_status {
 157         SIDE_VISITOR_STATUS_OK = 0,
 158         SIDE_VISITOR_STATUS_ERROR = -1,
 159 };
 160
 161 typedef enum side_visitor_status (*side_visitor)(
 162                 const struct side_tracer_visitor_ctx *tracer_ctx,
 163                 void *app_ctx);
 164 typedef enum side_visitor_status (*side_dynamic_struct_visitor)(
 165                 const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
 166                 void *app_ctx);
 167 typedef enum side_visitor_status (*side_dynamic_vla_visitor)(
 168                 const struct side_tracer_dynamic_vla_visitor_ctx *tracer_ctx,
 169                 void *app_ctx);
 170
 171 struct side_attr_value {
 172         uint32_t type;  /* enum side_attr_type */
 173         union {
 174                 uint8_t side_bool;
 175
 176                 uint8_t side_u8;
 177                 uint16_t side_u16;
 178                 uint32_t side_u32;
 179                 uint64_t side_u64;
 180                 int8_t side_s8;
 181                 int16_t side_s16;
 182                 int32_t side_s32;
 183                 int64_t side_s64;
 184
 185 #if __HAVE_FLOAT16
 186                 _Float16 side_float_binary16;
 187 #endif
 188 #if __HAVE_FLOAT32
 189                 _Float32 side_float_binary32;
 190 #endif
 191 #if __HAVE_FLOAT64
 192                 _Float64 side_float_binary64;
 193 #endif
 194 #if __HAVE_FLOAT128
 195                 _Float128 side_float_binary128;
 196 #endif
 197
 198                 const char *string;
 199         } u;
 200 };
 201
 202 /* User attributes. */
 203 struct side_attr {
 204         const char *key;
 205         const struct side_attr_value value;
 206 };
 207
 208 struct side_enum_mapping {
 209         int64_t range_begin;
 210         int64_t range_end;
 211         const char *label;
 212 };
 213
 214 struct side_enum_mappings {
 215         const struct side_enum_mapping *mappings;
 216         uint32_t nr_mappings;
 217 };
 218
 219 struct side_enum_bitmap_mapping {
 220         int64_t range_begin;
 221         int64_t range_end;
 222         const char *label;
 223 };
 224
 225 struct side_enum_bitmap_mappings {
 226         const struct side_enum_bitmap_mapping *mappings;
 227         uint32_t nr_mappings;
 228 };
 229
 230 struct side_type_struct {
 231         uint32_t nr_fields;
 232         uint32_t nr_attr;
 233         const struct side_event_field *fields;
 234         const struct side_attr *attr;
 235 };
 236
 237 struct side_type_description {
 238         uint32_t type;  /* enum side_type */
 239         uint32_t nr_attr;
 240         const struct side_attr *attr;
 241         union {
 242                 const struct side_type_struct *side_struct;
 243                 struct {
 244                         uint32_t length;
 245                         const struct side_type_description *elem_type;
 246                 } side_array;
 247                 struct {
 248                         const struct side_type_description *elem_type;
 249                 } side_vla;
 250                 struct {
 251                         const struct side_type_description *elem_type;
 252                         side_visitor visitor;
 253                 } side_vla_visitor;
 254                 const struct side_enum_mappings *side_enum_mappings;
 255                 const struct side_enum_bitmap_mappings *side_enum_bitmap_mappings;
 256         } u;
 257 };
 258
 259 struct side_event_field {
 260         const char *field_name;
 261         struct side_type_description side_type;
 262 };
 263
 264 enum side_event_flags {
 265         SIDE_EVENT_FLAG_VARIADIC = (1 << 0),
 266 };
 267
 268 struct side_callback {
 269         union {
 270                 void (*call)(const struct side_event_description *desc,
 271                         const struct side_arg_vec_description *sav_desc,
 272                         void *priv);
 273                 void (*call_variadic)(const struct side_event_description *desc,
 274                         const struct side_arg_vec_description *sav_desc,
 275                         const struct side_arg_dynamic_event_struct *var_struct,
 276                         void *priv);
 277         } u;
 278         void *priv;
 279 };
 280
 281 struct side_callbacks {
 282         struct side_callback *cb;
 283         uint32_t nr_cb;
 284 };
 285
 286 struct side_event_description {
 287         uint32_t version;
 288         uint32_t *enabled;
 289         uint32_t loglevel;      /* enum side_loglevel */
 290         uint32_t nr_fields;
 291         uint32_t nr_attr;
 292         uint32_t _unused;
 293         uint64_t flags;
 294         const char *provider_name;
 295         const char *event_name;
 296         const struct side_event_field *fields;
 297         const struct side_attr *attr;
 298         struct side_callbacks *callbacks;
 299 };
 300
 301 struct side_arg_dynamic_vec_vla {
 302         const struct side_arg_dynamic_vec *sav;
 303         uint32_t len;
 304 };
 305
 306 struct side_arg_dynamic_vec {
 307         uint32_t dynamic_type;  /* enum side_dynamic_type */
 308         uint32_t nr_attr;
 309         const struct side_attr *attr;
 310         union {
 311                 uint8_t side_bool;
 312
 313                 uint8_t side_u8;
 314                 uint16_t side_u16;
 315                 uint32_t side_u32;
 316                 uint64_t side_u64;
 317                 int8_t side_s8;
 318                 int16_t side_s16;
 319                 int32_t side_s32;
 320                 int64_t side_s64;
 321                 uint8_t side_blob;
 322
 323 #if __HAVE_FLOAT16
 324                 _Float16 side_float_binary16;
 325 #endif
 326 #if __HAVE_FLOAT32
 327                 _Float32 side_float_binary32;
 328 #endif
 329 #if __HAVE_FLOAT64
 330                 _Float64 side_float_binary64;
 331 #endif
 332 #if __HAVE_FLOAT128
 333                 _Float128 side_float_binary128;
 334 #endif
 335
 336                 const char *string;
 337
 338                 const struct side_arg_dynamic_event_struct *side_dynamic_struct;
 339                 struct {
 340                         void *app_ctx;
 341                         side_dynamic_struct_visitor visitor;
 342                 } side_dynamic_struct_visitor;
 343
 344                 const struct side_arg_dynamic_vec_vla *side_dynamic_vla;
 345                 struct {
 346                         void *app_ctx;
 347                         side_dynamic_vla_visitor visitor;
 348                 } side_dynamic_vla_visitor;
 349         } u;
 350 };
 351
 352 struct side_arg_dynamic_event_field {
 353         const char *field_name;
 354         const struct side_arg_dynamic_vec elem;
 355 };
 356
 357 struct side_arg_dynamic_event_struct {
 358         const struct side_arg_dynamic_event_field *fields;
 359         uint32_t len;
 360 };
 361
 362 struct side_arg_vec {
 363         enum side_type type;
 364         union {
 365                 uint8_t side_bool;
 366
 367                 uint8_t side_u8;
 368                 uint16_t side_u16;
 369                 uint32_t side_u32;
 370                 uint64_t side_u64;
 371                 int8_t side_s8;
 372                 int16_t side_s16;
 373                 int32_t side_s32;
 374                 int64_t side_s64;
 375                 uint8_t side_blob;
 376
 377 #if __HAVE_FLOAT16
 378                 _Float16 side_float_binary16;
 379 #endif
 380 #if __HAVE_FLOAT32
 381                 _Float32 side_float_binary32;
 382 #endif
 383 #if __HAVE_FLOAT64
 384                 _Float64 side_float_binary64;
 385 #endif
 386 #if __HAVE_FLOAT128
 387                 _Float128 side_float_binary128;
 388 #endif
 389
 390                 const char *string;
 391                 const struct side_arg_vec_description *side_struct;
 392                 const struct side_arg_vec_description *side_array;
 393                 const struct side_arg_vec_description *side_vla;
 394                 void *side_vla_app_visitor_ctx;
 395
 396                 void *side_array_fixint;
 397                 struct {
 398                         void *p;
 399                         uint32_t length;
 400                 } side_vla_fixint;
 401
 402                 struct side_arg_dynamic_vec dynamic;
 403         } u;
 404 };
 405
 406 struct side_arg_vec_description {
 407         const struct side_arg_vec *sav;
 408         uint32_t len;
 409 };
 410
 411 /* The visitor pattern is a double-dispatch visitor. */
 412 struct side_tracer_visitor_ctx {
 413         enum side_visitor_status (*write_elem)(
 414                         const struct side_tracer_visitor_ctx *tracer_ctx,
 415                         const struct side_arg_vec *elem);
 416         void *priv;             /* Private tracer context. */
 417 };
 418
 419 struct side_tracer_dynamic_struct_visitor_ctx {
 420         enum side_visitor_status (*write_field)(
 421                         const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
 422                         const struct side_arg_dynamic_event_field *dynamic_field);
 423         void *priv;             /* Private tracer context. */
 424 };
 425
 426 struct side_tracer_dynamic_vla_visitor_ctx {
 427         enum side_visitor_status (*write_elem)(
 428                         const struct side_tracer_dynamic_vla_visitor_ctx *tracer_ctx,
 429                         const struct side_arg_dynamic_vec *elem);
 430         void *priv;             /* Private tracer context. */
 431 };
 432
 433 #define side_attr(_key, _value) \
 434         { \
 435                 .key = _key, \
 436                 .value = SIDE_PARAM(_value), \
 437         }
 438
 439 #define side_attr_list(...) \
 440         SIDE_COMPOUND_LITERAL(const struct side_attr, __VA_ARGS__)
 441
 442 #define _side_type(_type, _attr) \
 443         { \
 444                 .type = _type, \
 445                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 446                 .attr = _attr, \
 447         }
 448
 449 #define side_type_bool(_attr)                           _side_type(SIDE_TYPE_BOOL, SIDE_PARAM(_attr))
 450 #define side_type_u8(_attr)                             _side_type(SIDE_TYPE_U8, SIDE_PARAM(_attr))
 451 #define side_type_u16(_attr)                            _side_type(SIDE_TYPE_U16, SIDE_PARAM(_attr))
 452 #define side_type_u32(_attr)                            _side_type(SIDE_TYPE_U32, SIDE_PARAM(_attr))
 453 #define side_type_u64(_attr)                            _side_type(SIDE_TYPE_U64, SIDE_PARAM(_attr))
 454 #define side_type_s8(_attr)                             _side_type(SIDE_TYPE_S8, SIDE_PARAM(_attr))
 455 #define side_type_s16(_attr)                            _side_type(SIDE_TYPE_S16, SIDE_PARAM(_attr))
 456 #define side_type_s32(_attr)                            _side_type(SIDE_TYPE_S32, SIDE_PARAM(_attr))
 457 #define side_type_s64(_attr)                            _side_type(SIDE_TYPE_S64, SIDE_PARAM(_attr))
 458 #define side_type_blob(_attr)                           _side_type(SIDE_TYPE_BLOB, SIDE_PARAM(_attr))
 459 #define side_type_float_binary16(_attr)                 _side_type(SIDE_TYPE_FLOAT_BINARY16, SIDE_PARAM(_attr))
 460 #define side_type_float_binary32(_attr)                 _side_type(SIDE_TYPE_FLOAT_BINARY32, SIDE_PARAM(_attr))
 461 #define side_type_float_binary64(_attr)                 _side_type(SIDE_TYPE_FLOAT_BINARY64, SIDE_PARAM(_attr))
 462 #define side_type_float_binary128(_attr)                _side_type(SIDE_TYPE_FLOAT_BINARY128, SIDE_PARAM(_attr))
 463 #define side_type_string(_attr)                         _side_type(SIDE_TYPE_STRING, SIDE_PARAM(_attr))
 464 #define side_type_dynamic(_attr)                        _side_type(SIDE_TYPE_DYNAMIC, SIDE_PARAM(_attr))
 465
 466 #define _side_field(_name, _type) \
 467         { \
 468                 .field_name = _name, \
 469                 .side_type = _type, \
 470         }
 471
 472 #define side_field_bool(_name, _attr)                   _side_field(_name, side_type_bool(SIDE_PARAM(_attr)))
 473 #define side_field_u8(_name, _attr)                     _side_field(_name, side_type_u8(SIDE_PARAM(_attr)))
 474 #define side_field_u16(_name, _attr)                    _side_field(_name, side_type_u16(SIDE_PARAM(_attr)))
 475 #define side_field_u32(_name, _attr)                    _side_field(_name, side_type_u32(SIDE_PARAM(_attr)))
 476 #define side_field_u64(_name, _attr)                    _side_field(_name, side_type_u64(SIDE_PARAM(_attr)))
 477 #define side_field_s8(_name, _attr)                     _side_field(_name, side_type_s8(SIDE_PARAM(_attr)))
 478 #define side_field_s16(_name, _attr)                    _side_field(_name, side_type_s16(SIDE_PARAM(_attr)))
 479 #define side_field_s32(_name, _attr)                    _side_field(_name, side_type_s32(SIDE_PARAM(_attr)))
 480 #define side_field_s64(_name, _attr)                    _side_field(_name, side_type_s64(SIDE_PARAM(_attr)))
 481 #define side_field_blob(_name, _attr)                   _side_field(_name, side_type_blob(SIDE_PARAM(_attr)))
 482 #define side_field_float_binary16(_name, _attr)         _side_field(_name, side_type_float_binary16(SIDE_PARAM(_attr)))
 483 #define side_field_float_binary32(_name, _attr)         _side_field(_name, side_type_float_binary32(SIDE_PARAM(_attr)))
 484 #define side_field_float_binary64(_name, _attr)         _side_field(_name, side_type_float_binary64(SIDE_PARAM(_attr)))
 485 #define side_field_float_binary128(_name, _attr)        _side_field(_name, side_type_float_binary128(SIDE_PARAM(_attr)))
 486 #define side_field_string(_name, _attr)                 _side_field(_name, side_type_string(SIDE_PARAM(_attr)))
 487 #define side_field_dynamic(_name, _attr)                _side_field(_name, side_type_dynamic(SIDE_PARAM(_attr)))
 488
 489 #define side_type_enum(_type, _mappings, _attr) \
 490         { \
 491                 .type = _type, \
 492                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 493                 .attr = _attr, \
 494                 .u = { \
 495                         .side_enum_mappings = _mappings, \
 496                 }, \
 497         }
 498 #define _side_field_enum(_name, _type, _mappings, _attr) \
 499         _side_field(_name, side_type_enum(_type, SIDE_PARAM(_mappings), SIDE_PARAM(_attr)))
 500
 501 #define side_field_enum_u8(_name, _mappings, _attr) \
 502         _side_field_enum(_name, SIDE_TYPE_ENUM_U8, SIDE_PARAM(_mappings), SIDE_PARAM(_attr))
 503 #define side_field_enum_u16(_name, _mappings, _attr) \
 504         _side_field_enum(_name, SIDE_TYPE_ENUM_U16, SIDE_PARAM(_mappings), SIDE_PARAM(_attr))
 505 #define side_field_enum_u32(_name, _mappings, _attr) \
 506         _side_field_enum(_name, SIDE_TYPE_ENUM_U32, SIDE_PARAM(_mappings), SIDE_PARAM(_attr))
 507 #define side_field_enum_u64(_name, _mappings, _attr) \
 508         _side_field_enum(_name, SIDE_TYPE_ENUM_U64, SIDE_PARAM(_mappings), SIDE_PARAM(_attr))
 509 #define side_field_enum_s8(_name, _mappings, _attr) \
 510         _side_field_enum(_name, SIDE_TYPE_ENUM_S8, SIDE_PARAM(_mappings), SIDE_PARAM(_attr))
 511 #define side_field_enum_s16(_name, _mappings, _attr) \
 512         _side_field_enum(_name, SIDE_TYPE_ENUM_S16, SIDE_PARAM(_mappings), SIDE_PARAM(_attr))
 513 #define side_field_enum_s32(_name, _mappings, _attr) \
 514         _side_field_enum(_name, SIDE_TYPE_ENUM_S32, SIDE_PARAM(_mappings), SIDE_PARAM(_attr))
 515 #define side_field_enum_s64(_name, _mappings, _attr) \
 516         _side_field_enum(_name, SIDE_TYPE_ENUM_S64, SIDE_PARAM(_mappings), SIDE_PARAM(_attr))
 517
 518 #define side_type_enum_bitmap(_type, _mappings, _attr) \
 519         { \
 520                 .type = _type, \
 521                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 522                 .attr = _attr, \
 523                 .u = { \
 524                         .side_enum_bitmap_mappings = _mappings, \
 525                 }, \
 526         }
 527 #define _side_field_enum_bitmap(_name, _type, _mappings, _attr) \
 528         _side_field(_name, side_type_enum_bitmap(_type, SIDE_PARAM(_mappings), SIDE_PARAM(_attr)))
 529
 530 #define side_field_enum_bitmap8(_name, _mappings, _attr) \
 531         _side_field_enum_bitmap(_name, SIDE_TYPE_ENUM_BITMAP8, SIDE_PARAM(_mappings), SIDE_PARAM(_attr))
 532 #define side_field_enum_bitmap16(_name, _mappings, _attr) \
 533         _side_field_enum_bitmap(_name, SIDE_TYPE_ENUM_BITMAP16, SIDE_PARAM(_mappings), SIDE_PARAM(_attr))
 534 #define side_field_enum_bitmap32(_name, _mappings, _attr) \
 535         _side_field_enum_bitmap(_name, SIDE_TYPE_ENUM_BITMAP32, SIDE_PARAM(_mappings), SIDE_PARAM(_attr))
 536 #define side_field_enum_bitmap64(_name, _mappings, _attr) \
 537         _side_field_enum_bitmap(_name, SIDE_TYPE_ENUM_BITMAP64, SIDE_PARAM(_mappings), SIDE_PARAM(_attr))
 538
 539 #define side_type_struct(_struct) \
 540         { \
 541                 .type = SIDE_TYPE_STRUCT, \
 542                 .nr_attr = 0, \
 543                 .attr = NULL, \
 544                 .u = { \
 545                         .side_struct = _struct, \
 546                 }, \
 547         }
 548 #define side_field_struct(_name, _struct) \
 549         _side_field(_name, side_type_struct(SIDE_PARAM(_struct)))
 550
 551 #define _side_type_struct_define(_fields, _attr) \
 552         { \
 553                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \
 554                 .nr_attr  = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 555                 .fields = _fields, \
 556                 .attr = _attr, \
 557         }
 558
 559 #define side_define_struct(_identifier, _fields, _attr) \
 560         const struct side_type_struct _identifier = _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr))
 561
 562 #define side_struct_literal(_fields, _attr) \
 563         SIDE_COMPOUND_LITERAL(const struct side_type_struct, \
 564                 _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr)))
 565
 566 #define side_type_array(_elem_type, _length, _attr) \
 567         { \
 568                 .type = SIDE_TYPE_ARRAY, \
 569                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 570                 .attr = _attr, \
 571                 .u = { \
 572                         .side_array = { \
 573                                 .length = _length, \
 574                                 .elem_type = _elem_type, \
 575                         }, \
 576                 }, \
 577         }
 578 #define side_field_array(_name, _elem_type, _length, _attr) \
 579         _side_field(_name, side_type_array(SIDE_PARAM(_elem_type), _length, SIDE_PARAM(_attr)))
 580
 581 #define side_type_vla(_elem_type, _attr) \
 582         { \
 583                 .type = SIDE_TYPE_VLA, \
 584                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 585                 .attr = _attr, \
 586                 .u = { \
 587                         .side_vla = { \
 588                                 .elem_type = _elem_type, \
 589                         }, \
 590                 }, \
 591         }
 592 #define side_field_vla(_name, _elem_type, _attr) \
 593         _side_field(_name, side_type_vla(SIDE_PARAM(_elem_type), SIDE_PARAM(_attr)))
 594
 595 #define side_type_vla_visitor(_elem_type, _visitor, _attr) \
 596         { \
 597                 .type = SIDE_TYPE_VLA_VISITOR, \
 598                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 599                 .attr = _attr, \
 600                 .u = { \
 601                         .side_vla_visitor = { \
 602                                 .elem_type = SIDE_PARAM(_elem_type), \
 603                                 .visitor = _visitor, \
 604                         }, \
 605                 }, \
 606         }
 607 #define side_field_vla_visitor(_name, _elem_type, _visitor, _attr) \
 608         _side_field(_name, side_type_vla_visitor(SIDE_PARAM(_elem_type), _visitor, SIDE_PARAM(_attr)))
 609
 610 #define side_elem(...) \
 611         SIDE_COMPOUND_LITERAL(const struct side_type_description, __VA_ARGS__)
 612
 613 #define side_field_list(...) \
 614         SIDE_COMPOUND_LITERAL(const struct side_event_field, __VA_ARGS__)
 615
 616 #define side_arg_bool(val)              { .type = SIDE_TYPE_BOOL, .u = { .side_bool = !!(val) } }
 617 #define side_arg_u8(val)                { .type = SIDE_TYPE_U8, .u = { .side_u8 = (val) } }
 618 #define side_arg_u16(val)               { .type = SIDE_TYPE_U16, .u = { .side_u16 = (val) } }
 619 #define side_arg_u32(val)               { .type = SIDE_TYPE_U32, .u = { .side_u32 = (val) } }
 620 #define side_arg_u64(val)               { .type = SIDE_TYPE_U64, .u = { .side_u64 = (val) } }
 621 #define side_arg_s8(val)                { .type = SIDE_TYPE_S8, .u = { .side_s8 = (val) } }
 622 #define side_arg_s16(val)               { .type = SIDE_TYPE_S16, .u = { .side_s16 = (val) } }
 623 #define side_arg_s32(val)               { .type = SIDE_TYPE_S32, .u = { .side_s32 = (val) } }
 624 #define side_arg_s64(val)               { .type = SIDE_TYPE_S64, .u = { .side_s64 = (val) } }
 625 #define side_arg_blob(val)              { .type = SIDE_TYPE_BLOB, .u = { .side_blob = (val) } }
 626 #define side_arg_enum_u8(val)           { .type = SIDE_TYPE_ENUM_U8, .u = { .side_u8 = (val) } }
 627 #define side_arg_enum_u16(val)          { .type = SIDE_TYPE_ENUM_U16, .u = { .side_u16 = (val) } }
 628 #define side_arg_enum_u32(val)          { .type = SIDE_TYPE_ENUM_U32, .u = { .side_u32 = (val) } }
 629 #define side_arg_enum_u64(val)          { .type = SIDE_TYPE_ENUM_U64, .u = { .side_u64 = (val) } }
 630 #define side_arg_enum_s8(val)           { .type = SIDE_TYPE_ENUM_S8, .u = { .side_s8 = (val) } }
 631 #define side_arg_enum_s16(val)          { .type = SIDE_TYPE_ENUM_S16, .u = { .side_s16 = (val) } }
 632 #define side_arg_enum_s32(val)          { .type = SIDE_TYPE_ENUM_S32, .u = { .side_s32 = (val) } }
 633 #define side_arg_enum_s64(val)          { .type = SIDE_TYPE_ENUM_S64, .u = { .side_s64 = (val) } }
 634 #define side_arg_enum_bitmap8(val)      { .type = SIDE_TYPE_ENUM_BITMAP8, .u = { .side_u8 = (val) } }
 635 #define side_arg_enum_bitmap16(val)     { .type = SIDE_TYPE_ENUM_BITMAP16, .u = { .side_u16 = (val) } }
 636 #define side_arg_enum_bitmap32(val)     { .type = SIDE_TYPE_ENUM_BITMAP32, .u = { .side_u32 = (val) } }
 637 #define side_arg_enum_bitmap64(val)     { .type = SIDE_TYPE_ENUM_BITMAP64, .u = { .side_u64 = (val) } }
 638 #define side_arg_float_binary16(val)    { .type = SIDE_TYPE_FLOAT_BINARY16, .u = { .side_float_binary16 = (val) } }
 639 #define side_arg_float_binary32(val)    { .type = SIDE_TYPE_FLOAT_BINARY32, .u = { .side_float_binary32 = (val) } }
 640 #define side_arg_float_binary64(val)    { .type = SIDE_TYPE_FLOAT_BINARY64, .u = { .side_float_binary64 = (val) } }
 641 #define side_arg_float_binary128(val)   { .type = SIDE_TYPE_FLOAT_BINARY128, .u = { .side_float_binary128 = (val) } }
 642
 643 #define side_arg_string(val)            { .type = SIDE_TYPE_STRING, .u = { .string = (val) } }
 644 #define side_arg_struct(_side_type)     { .type = SIDE_TYPE_STRUCT, .u = { .side_struct = (_side_type) } }
 645 #define side_arg_array(_side_type)      { .type = SIDE_TYPE_ARRAY, .u = { .side_array = (_side_type) } }
 646 #define side_arg_vla(_side_type)        { .type = SIDE_TYPE_VLA, .u = { .side_vla = (_side_type) } }
 647 #define side_arg_vla_visitor(_ctx)      { .type = SIDE_TYPE_VLA_VISITOR, .u = { .side_vla_app_visitor_ctx = (_ctx) } }
 648
 649 #define side_arg_array_u8(_ptr)         { .type = SIDE_TYPE_ARRAY_U8, .u = { .side_array_fixint = (_ptr) } }
 650 #define side_arg_array_u16(_ptr)        { .type = SIDE_TYPE_ARRAY_U16, .u = { .side_array_fixint = (_ptr) } }
 651 #define side_arg_array_u32(_ptr)        { .type = SIDE_TYPE_ARRAY_U32, .u = { .side_array_fixint = (_ptr) } }
 652 #define side_arg_array_u64(_ptr)        { .type = SIDE_TYPE_ARRAY_U64, .u = { .side_array_fixint = (_ptr) } }
 653 #define side_arg_array_s8(_ptr)         { .type = SIDE_TYPE_ARRAY_S8, .u = { .side_array_fixint = (_ptr) } }
 654 #define side_arg_array_s16(_ptr)        { .type = SIDE_TYPE_ARRAY_S16, .u = { .side_array_fixint  = (_ptr) } }
 655 #define side_arg_array_s32(_ptr)        { .type = SIDE_TYPE_ARRAY_S32, .u = { .side_array_fixint = (_ptr) } }
 656 #define side_arg_array_s64(_ptr)        { .type = SIDE_TYPE_ARRAY_S64, .u = { .side_array_fixint = (_ptr) } }
 657 #define side_arg_array_blob(_ptr)       { .type = SIDE_TYPE_ARRAY_BLOB, .u = { .side_array_fixint = (_ptr) } }
 658
 659 #define side_arg_vla_u8(_ptr, _length)  { .type = SIDE_TYPE_VLA_U8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } }
 660 #define side_arg_vla_u16(_ptr, _length) { .type = SIDE_TYPE_VLA_U16, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 661 #define side_arg_vla_u32(_ptr, _length) { .type = SIDE_TYPE_VLA_U32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 662 #define side_arg_vla_u64(_ptr, _length) { .type = SIDE_TYPE_VLA_U64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 663 #define side_arg_vla_s8(_ptr, _length)  { .type = SIDE_TYPE_VLA_S8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 664 #define side_arg_vla_s16(_ptr, _length) { .type = SIDE_TYPE_VLA_S16, .u = { .side_vla_fixint  = { .p = (_ptr), .length = (_length) } } }
 665 #define side_arg_vla_s32(_ptr, _length) { .type = SIDE_TYPE_VLA_S32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 666 #define side_arg_vla_s64(_ptr, _length) { .type = SIDE_TYPE_VLA_S64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 667 #define side_arg_vla_blob(_ptr, _length) { .type = SIDE_TYPE_VLA_BLOB, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 668
 669 #define side_arg_dynamic(dynamic_arg_type) \
 670         { \
 671                 .type = SIDE_TYPE_DYNAMIC, \
 672                 .u = { \
 673                         .dynamic = dynamic_arg_type, \
 674                 }, \
 675         }
 676
 677 #define side_arg_dynamic_null(_attr) \
 678         { \
 679                 .dynamic_type = SIDE_DYNAMIC_TYPE_NULL, \
 680                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 681                 .attr = _attr, \
 682         }
 683
 684 #define side_arg_dynamic_bool(_val, _attr) \
 685         { \
 686                 .dynamic_type = SIDE_DYNAMIC_TYPE_BOOL, \
 687                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 688                 .attr = _attr, \
 689                 .u = { \
 690                         .side_bool = !!(_val), \
 691                 }, \
 692         }
 693
 694 #define side_arg_dynamic_u8(_val, _attr) \
 695         { \
 696                 .dynamic_type = SIDE_DYNAMIC_TYPE_U8, \
 697                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 698                 .attr = _attr, \
 699                 .u = { \
 700                         .side_u8 = (_val), \
 701                 }, \
 702         }
 703 #define side_arg_dynamic_u16(_val, _attr) \
 704         { \
 705                 .dynamic_type = SIDE_DYNAMIC_TYPE_U16, \
 706                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 707                 .attr = _attr, \
 708                 .u = { \
 709                         .side_u16 = (_val), \
 710                 }, \
 711         }
 712 #define side_arg_dynamic_u32(_val, _attr) \
 713         { \
 714                 .dynamic_type = SIDE_DYNAMIC_TYPE_U32, \
 715                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 716                 .attr = _attr, \
 717                 .u = { \
 718                         .side_u32 = (_val), \
 719                 }, \
 720         }
 721 #define side_arg_dynamic_u64(_val, _attr) \
 722         { \
 723                 .dynamic_type = SIDE_DYNAMIC_TYPE_U64, \
 724                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 725                 .attr = _attr, \
 726                 .u = { \
 727                         .side_u64 = (_val), \
 728                 }, \
 729         }
 730
 731 #define side_arg_dynamic_s8(_val, _attr) \
 732         { \
 733                 .dynamic_type = SIDE_DYNAMIC_TYPE_S8, \
 734                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 735                 .attr = _attr, \
 736                 .u = { \
 737                         .side_s8 = (_val), \
 738                 }, \
 739         }
 740 #define side_arg_dynamic_s16(_val, _attr) \
 741         { \
 742                 .dynamic_type = SIDE_DYNAMIC_TYPE_S16, \
 743                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 744                 .attr = _attr, \
 745                 .u = { \
 746                         .side_s16 = (_val), \
 747                 }, \
 748         }
 749 #define side_arg_dynamic_s32(_val, _attr) \
 750         { \
 751                 .dynamic_type = SIDE_DYNAMIC_TYPE_S32, \
 752                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 753                 .attr = _attr, \
 754                 .u = { \
 755                         .side_s32 = (_val), \
 756                 }, \
 757         }
 758 #define side_arg_dynamic_s64(_val, _attr) \
 759         { \
 760                 .dynamic_type = SIDE_DYNAMIC_TYPE_S64, \
 761                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 762                 .attr = _attr, \
 763                 .u = { \
 764                         .side_s64 = (_val), \
 765                 }, \
 766         }
 767 #define side_arg_dynamic_blob(_val, _attr) \
 768         { \
 769                 .dynamic_type = SIDE_DYNAMIC_TYPE_BLOB, \
 770                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 771                 .attr = _attr, \
 772                 .u = { \
 773                         .side_blob = (_val), \
 774                 }, \
 775         }
 776
 777 #define side_arg_dynamic_float_binary16(_val, _attr) \
 778         { \
 779                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY16, \
 780                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 781                 .attr = _attr, \
 782                 .u = { \
 783                         .side_float_binary16 = (_val), \
 784                 }, \
 785         }
 786 #define side_arg_dynamic_float_binary32(_val, _attr) \
 787         { \
 788                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY32, \
 789                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 790                 .attr = _attr, \
 791                 .u = { \
 792                         .side_float_binary32 = (_val), \
 793                 }, \
 794         }
 795 #define side_arg_dynamic_float_binary64(_val, _attr) \
 796         { \
 797                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY64, \
 798                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 799                 .attr = _attr, \
 800                 .u = { \
 801                         .side_float_binary64 = (_val), \
 802                 }, \
 803         }
 804 #define side_arg_dynamic_float_binary128(_val, _attr) \
 805         { \
 806                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY128, \
 807                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 808                 .attr = _attr, \
 809                 .u = { \
 810                         .side_float_binary128 = (_val), \
 811                 }, \
 812         }
 813
 814 #define side_arg_dynamic_string(_val, _attr) \
 815         { \
 816                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRING, \
 817                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 818                 .attr = _attr, \
 819                 .u = { \
 820                         .string = (_val), \
 821                 }, \
 822         }
 823
 824 #define side_arg_dynamic_vla(_vla, _attr) \
 825         { \
 826                 .dynamic_type = SIDE_DYNAMIC_TYPE_VLA, \
 827                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 828                 .attr = _attr, \
 829                 .u = { \
 830                         .side_dynamic_vla = (_vla), \
 831                 }, \
 832         }
 833
 834 #define side_arg_dynamic_vla_visitor(_dynamic_vla_visitor, _ctx, _attr) \
 835         { \
 836                 .dynamic_type = SIDE_DYNAMIC_TYPE_VLA_VISITOR, \
 837                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 838                 .attr = _attr, \
 839                 .u = { \
 840                         .side_dynamic_vla_visitor = { \
 841                                 .app_ctx = _ctx, \
 842                                 .visitor = _dynamic_vla_visitor, \
 843                         }, \
 844                 }, \
 845         }
 846
 847 #define side_arg_dynamic_struct(_struct, _attr) \
 848         { \
 849                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT, \
 850                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 851                 .attr = _attr, \
 852                 .u = { \
 853                         .side_dynamic_struct = (_struct), \
 854                 }, \
 855         }
 856
 857 #define side_arg_dynamic_struct_visitor(_dynamic_struct_visitor, _ctx, _attr) \
 858         { \
 859                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT_VISITOR, \
 860                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 861                 .attr = _attr, \
 862                 .u = { \
 863                         .side_dynamic_struct_visitor = { \
 864                                 .app_ctx = _ctx, \
 865                                 .visitor = _dynamic_struct_visitor, \
 866                         }, \
 867                 }, \
 868         }
 869
 870 #define side_arg_dynamic_define_vec(_identifier, _sav) \
 871         const struct side_arg_dynamic_vec _identifier##_vec[] = { _sav }; \
 872         const struct side_arg_dynamic_vec_vla _identifier = { \
 873                 .sav = _identifier##_vec, \
 874                 .len = SIDE_ARRAY_SIZE(_identifier##_vec), \
 875         }
 876
 877 #define side_arg_dynamic_define_struct(_identifier, _struct_fields) \
 878         const struct side_arg_dynamic_event_field _identifier##_fields[] = { _struct_fields }; \
 879         const struct side_arg_dynamic_event_struct _identifier = { \
 880                 .fields = _identifier##_fields, \
 881                 .len = SIDE_ARRAY_SIZE(_identifier##_fields), \
 882         }
 883
 884 #define side_arg_define_vec(_identifier, _sav) \
 885         const struct side_arg_vec _identifier##_vec[] = { _sav }; \
 886         const struct side_arg_vec_description _identifier = { \
 887                 .sav = _identifier##_vec, \
 888                 .len = SIDE_ARRAY_SIZE(_identifier##_vec), \
 889         }
 890
 891 #define side_arg_dynamic_field(_name, _elem) \
 892         { \
 893                 .field_name = _name, \
 894                 .elem = _elem, \
 895         }
 896
 897 #define side_arg_list(...)      __VA_ARGS__
 898
 899 #define side_attr_bool(val)             { .type = SIDE_ATTR_TYPE_BOOL, .u = { .side_bool = !!(val) } }
 900 #define side_attr_u8(val)               { .type = SIDE_ATTR_TYPE_U8, .u = { .side_u8 = (val) } }
 901 #define side_attr_u16(val)              { .type = SIDE_ATTR_TYPE_U16, .u = { .side_u16 = (val) } }
 902 #define side_attr_u32(val)              { .type = SIDE_ATTR_TYPE_U32, .u = { .side_u32 = (val) } }
 903 #define side_attr_u64(val)              { .type = SIDE_ATTR_TYPE_U64, .u = { .side_u64 = (val) } }
 904 #define side_attr_s8(val)               { .type = SIDE_ATTR_TYPE_S8, .u = { .side_s8 = (val) } }
 905 #define side_attr_s16(val)              { .type = SIDE_ATTR_TYPE_S16, .u = { .side_s16 = (val) } }
 906 #define side_attr_s32(val)              { .type = SIDE_ATTR_TYPE_S32, .u = { .side_s32 = (val) } }
 907 #define side_attr_s64(val)              { .type = SIDE_ATTR_TYPE_S64, .u = { .side_s64 = (val) } }
 908 #define side_attr_float_binary16(val)   { .type = SIDE_ATTR_TYPE_FLOAT_BINARY16, .u = { .side_float_binary16 = (val) } }
 909 #define side_attr_float_binary32(val)   { .type = SIDE_ATTR_TYPE_FLOAT_BINARY32, .u = { .side_float_binary32 = (val) } }
 910 #define side_attr_float_binary64(val)   { .type = SIDE_ATTR_TYPE_FLOAT_BINARY64, .u = { .side_float_binary64 = (val) } }
 911 #define side_attr_float_binary128(val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY128, .u = { .side_float_binary128 = (val) } }
 912 #define side_attr_string(val)           { .type = SIDE_ATTR_TYPE_STRING, .u = { .string = (val) } }
 913
 914 #define side_event_cond(_desc) if (side_unlikely(_desc##_enabled))
 915
 916 #define side_event_call(_desc, _sav) \
 917         { \
 918                 const struct side_arg_vec side_sav[] = { _sav }; \
 919                 const struct side_arg_vec_description sav_desc = { \
 920                         .sav = side_sav, \
 921                         .len = SIDE_ARRAY_SIZE(side_sav), \
 922                 }; \
 923                 side_call(&(_desc), &sav_desc); \
 924         }
 925
 926 #define side_event(_desc, _sav) \
 927         side_event_cond(_desc) \
 928                 side_event_call(_desc, SIDE_PARAM(_sav))
 929
 930 #define side_event_call_variadic(_desc, _sav, _var_fields) \
 931         { \
 932                 const struct side_arg_vec side_sav[] = { _sav }; \
 933                 const struct side_arg_vec_description sav_desc = { \
 934                         .sav = side_sav, \
 935                         .len = SIDE_ARRAY_SIZE(side_sav), \
 936                 }; \
 937                 const struct side_arg_dynamic_event_field side_fields[] = { _var_fields }; \
 938                 const struct side_arg_dynamic_event_struct var_struct = { \
 939                         .fields = side_fields, \
 940                         .len = SIDE_ARRAY_SIZE(side_fields), \
 941                 }; \
 942                 side_call_variadic(&(_desc), &sav_desc, &var_struct); \
 943         }
 944
 945 #define side_event_variadic(_desc, _sav, _var) \
 946         side_event_cond(_desc) \
 947                 side_event_call_variadic(_desc, SIDE_PARAM(_sav), SIDE_PARAM(_var))
 948
 949 #define side_define_enum(_identifier, _mappings) \
 950         const struct side_enum_mappings _identifier = { \
 951                 .mappings = _mappings, \
 952                 .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \
 953         }
 954
 955 #define side_enum_mapping_list(...) \
 956         SIDE_COMPOUND_LITERAL(const struct side_enum_mapping, __VA_ARGS__)
 957
 958 #define side_enum_mapping_range(_label, _begin, _end) \
 959         { \
 960                 .range_begin = _begin, \
 961                 .range_end = _end, \
 962                 .label = _label, \
 963         }
 964
 965 #define side_enum_mapping_value(_label, _value) \
 966         { \
 967                 .range_begin = _value, \
 968                 .range_end = _value, \
 969                 .label = _label, \
 970         }
 971
 972 #define side_define_enum_bitmap(_identifier, _mappings) \
 973         const struct side_enum_bitmap_mappings _identifier = { \
 974                 .mappings = _mappings, \
 975                 .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \
 976         }
 977
 978 #define side_enum_bitmap_mapping_list(...) \
 979         SIDE_COMPOUND_LITERAL(const struct side_enum_bitmap_mapping, __VA_ARGS__)
 980
 981 #define side_enum_bitmap_mapping_range(_label, _begin, _end) \
 982         { \
 983                 .range_begin = _begin, \
 984                 .range_end = _end, \
 985                 .label = _label, \
 986         }
 987
 988 #define side_enum_bitmap_mapping_value(_label, _value) \
 989         { \
 990                 .range_begin = _value, \
 991                 .range_end = _value, \
 992                 .label = _label, \
 993         }
 994
 995 #define _side_define_event(_identifier, _provider, _event, _loglevel, _fields, _attr, _flags) \
 996         uint32_t _identifier##_enabled __attribute__((section("side_event_enable"))); \
 997         struct side_callbacks _identifier##_callbacks __attribute__((section("side_event_callbacks"))); \
 998         const struct side_event_description _identifier = { \
 999                 .version = 0, \
1000                 .enabled = &(_identifier##_enabled), \
1001                 .loglevel = _loglevel, \
1002                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \
1003                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1004                 .flags = (_flags), \
1005                 .provider_name = _provider, \
1006                 .event_name = _event, \
1007                 .fields = _fields, \
1008                 .attr = _attr, \
1009                 .callbacks = &(_identifier##_callbacks), \
1010         }; \
1011         const struct side_event_description *_identifier##_ptr \
1012                 __attribute__((section("side_event_description"), used)) = &(_identifier);
1013
1014 #define side_define_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1015         _side_define_event(_identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1016                         SIDE_PARAM(_attr), 0)
1017
1018 #define side_define_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1019         _side_define_event(_identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1020                         SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC)
1021
1022 #define side_declare_event(_identifier) \
1023         struct side_event_description _identifier
1024
1025 void side_call(const struct side_event_description *desc,
1026         const struct side_arg_vec_description *sav_desc);
1027 void side_call_variadic(const struct side_event_description *desc,
1028         const struct side_arg_vec_description *sav_desc,
1029         const struct side_arg_dynamic_event_struct *var_struct);
1030
1031 #endif /* _SIDE_TRACE_H */