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         /* Basic types */
  36         SIDE_TYPE_BOOL,
  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_BYTE,
  46         SIDE_TYPE_FLOAT_BINARY16,
  47         SIDE_TYPE_FLOAT_BINARY32,
  48         SIDE_TYPE_FLOAT_BINARY64,
  49         SIDE_TYPE_FLOAT_BINARY128,
  50         SIDE_TYPE_STRING,
  51
  52         /* Compound types */
  53         SIDE_TYPE_STRUCT,
  54         SIDE_TYPE_ARRAY,
  55         SIDE_TYPE_VLA,
  56         SIDE_TYPE_VLA_VISITOR,
  57
  58         SIDE_TYPE_ARRAY_U8,
  59         SIDE_TYPE_ARRAY_U16,
  60         SIDE_TYPE_ARRAY_U32,
  61         SIDE_TYPE_ARRAY_U64,
  62         SIDE_TYPE_ARRAY_S8,
  63         SIDE_TYPE_ARRAY_S16,
  64         SIDE_TYPE_ARRAY_S32,
  65         SIDE_TYPE_ARRAY_S64,
  66         SIDE_TYPE_ARRAY_BYTE,
  67
  68         SIDE_TYPE_VLA_U8,
  69         SIDE_TYPE_VLA_U16,
  70         SIDE_TYPE_VLA_U32,
  71         SIDE_TYPE_VLA_U64,
  72         SIDE_TYPE_VLA_S8,
  73         SIDE_TYPE_VLA_S16,
  74         SIDE_TYPE_VLA_S32,
  75         SIDE_TYPE_VLA_S64,
  76         SIDE_TYPE_VLA_BYTE,
  77
  78         /* Enumeration types */
  79         SIDE_TYPE_ENUM,
  80         SIDE_TYPE_ENUM_BITMAP,
  81
  82         /* Dynamic type */
  83         SIDE_TYPE_DYNAMIC,
  84 };
  85
  86 enum side_dynamic_type {
  87         /* Basic types */
  88         SIDE_DYNAMIC_TYPE_NULL,
  89         SIDE_DYNAMIC_TYPE_BOOL,
  90         SIDE_DYNAMIC_TYPE_U8,
  91         SIDE_DYNAMIC_TYPE_U16,
  92         SIDE_DYNAMIC_TYPE_U32,
  93         SIDE_DYNAMIC_TYPE_U64,
  94         SIDE_DYNAMIC_TYPE_S8,
  95         SIDE_DYNAMIC_TYPE_S16,
  96         SIDE_DYNAMIC_TYPE_S32,
  97         SIDE_DYNAMIC_TYPE_S64,
  98         SIDE_DYNAMIC_TYPE_BYTE,
  99         SIDE_DYNAMIC_TYPE_FLOAT_BINARY16,
 100         SIDE_DYNAMIC_TYPE_FLOAT_BINARY32,
 101         SIDE_DYNAMIC_TYPE_FLOAT_BINARY64,
 102         SIDE_DYNAMIC_TYPE_FLOAT_BINARY128,
 103         SIDE_DYNAMIC_TYPE_STRING,
 104
 105         /* Compound types */
 106         SIDE_DYNAMIC_TYPE_STRUCT,
 107         SIDE_DYNAMIC_TYPE_STRUCT_VISITOR,
 108         SIDE_DYNAMIC_TYPE_VLA,
 109         SIDE_DYNAMIC_TYPE_VLA_VISITOR,
 110 };
 111
 112 enum side_attr_type {
 113         SIDE_ATTR_TYPE_NULL,
 114         SIDE_ATTR_TYPE_BOOL,
 115         SIDE_ATTR_TYPE_U8,
 116         SIDE_ATTR_TYPE_U16,
 117         SIDE_ATTR_TYPE_U32,
 118         SIDE_ATTR_TYPE_U64,
 119         SIDE_ATTR_TYPE_S8,
 120         SIDE_ATTR_TYPE_S16,
 121         SIDE_ATTR_TYPE_S32,
 122         SIDE_ATTR_TYPE_S64,
 123         SIDE_ATTR_TYPE_FLOAT_BINARY16,
 124         SIDE_ATTR_TYPE_FLOAT_BINARY32,
 125         SIDE_ATTR_TYPE_FLOAT_BINARY64,
 126         SIDE_ATTR_TYPE_FLOAT_BINARY128,
 127         SIDE_ATTR_TYPE_STRING,
 128 };
 129
 130 enum side_loglevel {
 131         SIDE_LOGLEVEL_EMERG = 0,
 132         SIDE_LOGLEVEL_ALERT = 1,
 133         SIDE_LOGLEVEL_CRIT = 2,
 134         SIDE_LOGLEVEL_ERR = 3,
 135         SIDE_LOGLEVEL_WARNING = 4,
 136         SIDE_LOGLEVEL_NOTICE = 5,
 137         SIDE_LOGLEVEL_INFO = 6,
 138         SIDE_LOGLEVEL_DEBUG = 7,
 139 };
 140
 141 enum side_visitor_status {
 142         SIDE_VISITOR_STATUS_OK = 0,
 143         SIDE_VISITOR_STATUS_ERROR = -1,
 144 };
 145
 146 typedef enum side_visitor_status (*side_visitor)(
 147                 const struct side_tracer_visitor_ctx *tracer_ctx,
 148                 void *app_ctx);
 149 typedef enum side_visitor_status (*side_dynamic_struct_visitor)(
 150                 const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
 151                 void *app_ctx);
 152 typedef enum side_visitor_status (*side_dynamic_vla_visitor)(
 153                 const struct side_tracer_dynamic_vla_visitor_ctx *tracer_ctx,
 154                 void *app_ctx);
 155
 156 struct side_attr_value {
 157         uint32_t type;  /* enum side_attr_type */
 158         union {
 159                 uint8_t side_bool;
 160                 uint8_t side_u8;
 161                 uint16_t side_u16;
 162                 uint32_t side_u32;
 163                 uint64_t side_u64;
 164                 int8_t side_s8;
 165                 int16_t side_s16;
 166                 int32_t side_s32;
 167                 int64_t side_s64;
 168 #if __HAVE_FLOAT16
 169                 _Float16 side_float_binary16;
 170 #endif
 171 #if __HAVE_FLOAT32
 172                 _Float32 side_float_binary32;
 173 #endif
 174 #if __HAVE_FLOAT64
 175                 _Float64 side_float_binary64;
 176 #endif
 177 #if __HAVE_FLOAT128
 178                 _Float128 side_float_binary128;
 179 #endif
 180                 const char *string;
 181         } u;
 182 };
 183
 184 /* User attributes. */
 185 struct side_attr {
 186         const char *key;
 187         const struct side_attr_value value;
 188 };
 189
 190 struct side_enum_mapping {
 191         int64_t range_begin;
 192         int64_t range_end;
 193         const char *label;
 194 };
 195
 196 struct side_enum_mappings {
 197         const struct side_enum_mapping *mappings;
 198         const struct side_attr *attr;
 199         uint32_t nr_mappings;
 200         uint32_t nr_attr;
 201 };
 202
 203 struct side_enum_bitmap_mapping {
 204         uint64_t range_begin;
 205         uint64_t range_end;
 206         const char *label;
 207 };
 208
 209 struct side_enum_bitmap_mappings {
 210         const struct side_enum_bitmap_mapping *mappings;
 211         const struct side_attr *attr;
 212         uint32_t nr_mappings;
 213         uint32_t nr_attr;
 214 };
 215
 216 struct side_type_struct {
 217         uint32_t nr_fields;
 218         uint32_t nr_attr;
 219         const struct side_event_field *fields;
 220         const struct side_attr *attr;
 221 };
 222
 223 struct side_type_description {
 224         uint32_t type;  /* enum side_type */
 225         union {
 226                 /* Basic types */
 227                 struct {
 228                         const struct side_attr *attr;
 229                         uint32_t nr_attr;
 230                 } side_basic;
 231
 232                 /* Compound types */
 233                 struct {
 234                         const struct side_type_description *elem_type;
 235                         const struct side_attr *attr;
 236                         uint32_t length;
 237                         uint32_t nr_attr;
 238                 } side_array;
 239                 struct {
 240                         const struct side_type_description *elem_type;
 241                         const struct side_attr *attr;
 242                         uint32_t nr_attr;
 243                 } side_vla;
 244                 struct {
 245                         const struct side_type_description *elem_type;
 246                         side_visitor visitor;
 247                         const struct side_attr *attr;
 248                         uint32_t nr_attr;
 249                 } side_vla_visitor;
 250                 const struct side_type_struct *side_struct;
 251
 252                 /* Enumeration types */
 253                 struct {
 254                         const struct side_enum_mappings *mappings;
 255                         const struct side_type_description *elem_type;
 256                 } side_enum;
 257                 struct {
 258                         const struct side_enum_bitmap_mappings *mappings;
 259                         const struct side_type_description *elem_type;
 260                 } side_enum_bitmap;
 261         } u;
 262 };
 263
 264 struct side_event_field {
 265         const char *field_name;
 266         struct side_type_description side_type;
 267 };
 268
 269 enum side_event_flags {
 270         SIDE_EVENT_FLAG_VARIADIC = (1 << 0),
 271 };
 272
 273 struct side_callback {
 274         union {
 275                 void (*call)(const struct side_event_description *desc,
 276                         const struct side_arg_vec_description *sav_desc,
 277                         void *priv);
 278                 void (*call_variadic)(const struct side_event_description *desc,
 279                         const struct side_arg_vec_description *sav_desc,
 280                         const struct side_arg_dynamic_event_struct *var_struct,
 281                         void *priv);
 282         } u;
 283         void *priv;
 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         const struct side_callback *callbacks;
 299 };
 300
 301 struct side_arg_dynamic_vec {
 302         uint32_t dynamic_type;  /* enum side_dynamic_type */
 303         union {
 304                 /* Basic types */
 305                 struct {
 306                         const struct side_attr *attr;
 307                         uint32_t nr_attr;
 308                         union {
 309                                 uint8_t side_bool;
 310                                 uint8_t side_u8;
 311                                 uint16_t side_u16;
 312                                 uint32_t side_u32;
 313                                 uint64_t side_u64;
 314                                 int8_t side_s8;
 315                                 int16_t side_s16;
 316                                 int32_t side_s32;
 317                                 int64_t side_s64;
 318                                 uint8_t side_byte;
 319 #if __HAVE_FLOAT16
 320                                 _Float16 side_float_binary16;
 321 #endif
 322 #if __HAVE_FLOAT32
 323                                 _Float32 side_float_binary32;
 324 #endif
 325 #if __HAVE_FLOAT64
 326                                 _Float64 side_float_binary64;
 327 #endif
 328 #if __HAVE_FLOAT128
 329                                 _Float128 side_float_binary128;
 330 #endif
 331                                 const char *string;
 332                         } u;
 333                 } side_basic;
 334
 335                 /* Compound types */
 336                 const struct side_arg_dynamic_event_struct *side_dynamic_struct;
 337                 struct {
 338                         void *app_ctx;
 339                         side_dynamic_struct_visitor visitor;
 340                         const struct side_attr *attr;
 341                         uint32_t nr_attr;
 342                 } side_dynamic_struct_visitor;
 343                 const struct side_arg_dynamic_vec_vla *side_dynamic_vla;
 344                 struct {
 345                         void *app_ctx;
 346                         side_dynamic_vla_visitor visitor;
 347                         const struct side_attr *attr;
 348                         uint32_t nr_attr;
 349                 } side_dynamic_vla_visitor;
 350         } u;
 351 };
 352
 353 struct side_arg_dynamic_vec_vla {
 354         const struct side_arg_dynamic_vec *sav;
 355         const struct side_attr *attr;
 356         uint32_t len;
 357         uint32_t nr_attr;
 358 };
 359
 360 struct side_arg_dynamic_event_field {
 361         const char *field_name;
 362         const struct side_arg_dynamic_vec elem;
 363 };
 364
 365 struct side_arg_dynamic_event_struct {
 366         const struct side_arg_dynamic_event_field *fields;
 367         const struct side_attr *attr;
 368         uint32_t len;
 369         uint32_t nr_attr;
 370 };
 371
 372 struct side_arg_vec {
 373         enum side_type type;
 374         union {
 375                 /* Basic types */
 376                 uint8_t side_bool;
 377                 uint8_t side_u8;
 378                 uint16_t side_u16;
 379                 uint32_t side_u32;
 380                 uint64_t side_u64;
 381                 int8_t side_s8;
 382                 int16_t side_s16;
 383                 int32_t side_s32;
 384                 int64_t side_s64;
 385                 uint8_t side_byte;
 386 #if __HAVE_FLOAT16
 387                 _Float16 side_float_binary16;
 388 #endif
 389 #if __HAVE_FLOAT32
 390                 _Float32 side_float_binary32;
 391 #endif
 392 #if __HAVE_FLOAT64
 393                 _Float64 side_float_binary64;
 394 #endif
 395 #if __HAVE_FLOAT128
 396                 _Float128 side_float_binary128;
 397 #endif
 398                 const char *string;
 399
 400                 /* Compound types */
 401                 const struct side_arg_vec_description *side_struct;
 402                 const struct side_arg_vec_description *side_array;
 403                 const struct side_arg_vec_description *side_vla;
 404                 void *side_vla_app_visitor_ctx;
 405                 void *side_array_fixint;
 406                 struct {
 407                         void *p;
 408                         uint32_t length;
 409                 } side_vla_fixint;
 410
 411                 /* Dynamic type */
 412                 struct side_arg_dynamic_vec dynamic;
 413         } u;
 414 };
 415
 416 struct side_arg_vec_description {
 417         const struct side_arg_vec *sav;
 418         uint32_t len;
 419 };
 420
 421 /* The visitor pattern is a double-dispatch visitor. */
 422 struct side_tracer_visitor_ctx {
 423         enum side_visitor_status (*write_elem)(
 424                         const struct side_tracer_visitor_ctx *tracer_ctx,
 425                         const struct side_arg_vec *elem);
 426         void *priv;             /* Private tracer context. */
 427 };
 428
 429 struct side_tracer_dynamic_struct_visitor_ctx {
 430         enum side_visitor_status (*write_field)(
 431                         const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
 432                         const struct side_arg_dynamic_event_field *dynamic_field);
 433         void *priv;             /* Private tracer context. */
 434 };
 435
 436 struct side_tracer_dynamic_vla_visitor_ctx {
 437         enum side_visitor_status (*write_elem)(
 438                         const struct side_tracer_dynamic_vla_visitor_ctx *tracer_ctx,
 439                         const struct side_arg_dynamic_vec *elem);
 440         void *priv;             /* Private tracer context. */
 441 };
 442
 443 /* Event and type attributes */
 444
 445 #define side_attr(_key, _value) \
 446         { \
 447                 .key = _key, \
 448                 .value = SIDE_PARAM(_value), \
 449         }
 450
 451 #define side_attr_list(...) \
 452         SIDE_COMPOUND_LITERAL(const struct side_attr, __VA_ARGS__)
 453
 454 #define side_attr_null(_val)            { .type = SIDE_ATTR_TYPE_NULL }
 455 #define side_attr_bool(_val)            { .type = SIDE_ATTR_TYPE_BOOL, .u = { .side_bool = !!(_val) } }
 456 #define side_attr_u8(_val)              { .type = SIDE_ATTR_TYPE_U8, .u = { .side_u8 = (_val) } }
 457 #define side_attr_u16(_val)             { .type = SIDE_ATTR_TYPE_U16, .u = { .side_u16 = (_val) } }
 458 #define side_attr_u32(_val)             { .type = SIDE_ATTR_TYPE_U32, .u = { .side_u32 = (_val) } }
 459 #define side_attr_u64(_val)             { .type = SIDE_ATTR_TYPE_U64, .u = { .side_u64 = (_val) } }
 460 #define side_attr_s8(_val)              { .type = SIDE_ATTR_TYPE_S8, .u = { .side_s8 = (_val) } }
 461 #define side_attr_s16(_val)             { .type = SIDE_ATTR_TYPE_S16, .u = { .side_s16 = (_val) } }
 462 #define side_attr_s32(_val)             { .type = SIDE_ATTR_TYPE_S32, .u = { .side_s32 = (_val) } }
 463 #define side_attr_s64(_val)             { .type = SIDE_ATTR_TYPE_S64, .u = { .side_s64 = (_val) } }
 464 #define side_attr_float_binary16(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY16, .u = { .side_float_binary16 = (_val) } }
 465 #define side_attr_float_binary32(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY32, .u = { .side_float_binary32 = (_val) } }
 466 #define side_attr_float_binary64(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY64, .u = { .side_float_binary64 = (_val) } }
 467 #define side_attr_float_binary128(_val) { .type = SIDE_ATTR_TYPE_FLOAT_BINARY128, .u = { .side_float_binary128 = (_val) } }
 468 #define side_attr_string(_val)          { .type = SIDE_ATTR_TYPE_STRING, .u = { .string = (_val) } }
 469
 470 /* Static field definition */
 471
 472 #define _side_type_basic(_type, _attr) \
 473         { \
 474                 .type = _type, \
 475                 .u = { \
 476                         .side_basic = { \
 477                                 .attr = _attr, \
 478                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 479                         }, \
 480                 }, \
 481         }
 482
 483 #define side_type_bool(_attr)                           _side_type_basic(SIDE_TYPE_BOOL, SIDE_PARAM(_attr))
 484 #define side_type_u8(_attr)                             _side_type_basic(SIDE_TYPE_U8, SIDE_PARAM(_attr))
 485 #define side_type_u16(_attr)                            _side_type_basic(SIDE_TYPE_U16, SIDE_PARAM(_attr))
 486 #define side_type_u32(_attr)                            _side_type_basic(SIDE_TYPE_U32, SIDE_PARAM(_attr))
 487 #define side_type_u64(_attr)                            _side_type_basic(SIDE_TYPE_U64, SIDE_PARAM(_attr))
 488 #define side_type_s8(_attr)                             _side_type_basic(SIDE_TYPE_S8, SIDE_PARAM(_attr))
 489 #define side_type_s16(_attr)                            _side_type_basic(SIDE_TYPE_S16, SIDE_PARAM(_attr))
 490 #define side_type_s32(_attr)                            _side_type_basic(SIDE_TYPE_S32, SIDE_PARAM(_attr))
 491 #define side_type_s64(_attr)                            _side_type_basic(SIDE_TYPE_S64, SIDE_PARAM(_attr))
 492 #define side_type_byte(_attr)                           _side_type_basic(SIDE_TYPE_BYTE, SIDE_PARAM(_attr))
 493 #define side_type_float_binary16(_attr)                 _side_type_basic(SIDE_TYPE_FLOAT_BINARY16, SIDE_PARAM(_attr))
 494 #define side_type_float_binary32(_attr)                 _side_type_basic(SIDE_TYPE_FLOAT_BINARY32, SIDE_PARAM(_attr))
 495 #define side_type_float_binary64(_attr)                 _side_type_basic(SIDE_TYPE_FLOAT_BINARY64, SIDE_PARAM(_attr))
 496 #define side_type_float_binary128(_attr)                _side_type_basic(SIDE_TYPE_FLOAT_BINARY128, SIDE_PARAM(_attr))
 497 #define side_type_string(_attr)                         _side_type_basic(SIDE_TYPE_STRING, SIDE_PARAM(_attr))
 498 #define side_type_dynamic(_attr)                        _side_type_basic(SIDE_TYPE_DYNAMIC, SIDE_PARAM(_attr))
 499
 500 #define _side_field(_name, _type) \
 501         { \
 502                 .field_name = _name, \
 503                 .side_type = _type, \
 504         }
 505
 506 #define side_field_bool(_name, _attr)                   _side_field(_name, side_type_bool(SIDE_PARAM(_attr)))
 507 #define side_field_u8(_name, _attr)                     _side_field(_name, side_type_u8(SIDE_PARAM(_attr)))
 508 #define side_field_u16(_name, _attr)                    _side_field(_name, side_type_u16(SIDE_PARAM(_attr)))
 509 #define side_field_u32(_name, _attr)                    _side_field(_name, side_type_u32(SIDE_PARAM(_attr)))
 510 #define side_field_u64(_name, _attr)                    _side_field(_name, side_type_u64(SIDE_PARAM(_attr)))
 511 #define side_field_s8(_name, _attr)                     _side_field(_name, side_type_s8(SIDE_PARAM(_attr)))
 512 #define side_field_s16(_name, _attr)                    _side_field(_name, side_type_s16(SIDE_PARAM(_attr)))
 513 #define side_field_s32(_name, _attr)                    _side_field(_name, side_type_s32(SIDE_PARAM(_attr)))
 514 #define side_field_s64(_name, _attr)                    _side_field(_name, side_type_s64(SIDE_PARAM(_attr)))
 515 #define side_field_byte(_name, _attr)                   _side_field(_name, side_type_byte(SIDE_PARAM(_attr)))
 516 #define side_field_float_binary16(_name, _attr)         _side_field(_name, side_type_float_binary16(SIDE_PARAM(_attr)))
 517 #define side_field_float_binary32(_name, _attr)         _side_field(_name, side_type_float_binary32(SIDE_PARAM(_attr)))
 518 #define side_field_float_binary64(_name, _attr)         _side_field(_name, side_type_float_binary64(SIDE_PARAM(_attr)))
 519 #define side_field_float_binary128(_name, _attr)        _side_field(_name, side_type_float_binary128(SIDE_PARAM(_attr)))
 520 #define side_field_string(_name, _attr)                 _side_field(_name, side_type_string(SIDE_PARAM(_attr)))
 521 #define side_field_dynamic(_name, _attr)                _side_field(_name, side_type_dynamic(SIDE_PARAM(_attr)))
 522
 523 #define side_type_enum(_mappings, _elem_type) \
 524         { \
 525                 .type = SIDE_TYPE_ENUM, \
 526                 .u = { \
 527                         .side_enum = { \
 528                                 .mappings = _mappings, \
 529                                 .elem_type = _elem_type, \
 530                         }, \
 531                 }, \
 532         }
 533 #define side_field_enum(_name, _mappings, _elem_type) \
 534         _side_field(_name, side_type_enum(SIDE_PARAM(_mappings), SIDE_PARAM(_elem_type)))
 535
 536 #define side_type_enum_bitmap(_mappings, _elem_type) \
 537         { \
 538                 .type = SIDE_TYPE_ENUM_BITMAP, \
 539                 .u = { \
 540                         .side_enum_bitmap = { \
 541                                 .mappings = _mappings, \
 542                                 .elem_type = _elem_type, \
 543                         }, \
 544                 }, \
 545         }
 546 #define side_field_enum_bitmap(_name, _mappings, _elem_type) \
 547         _side_field(_name, side_type_enum_bitmap(SIDE_PARAM(_mappings), SIDE_PARAM(_elem_type)))
 548
 549 #define side_type_struct(_struct) \
 550         { \
 551                 .type = SIDE_TYPE_STRUCT, \
 552                 .u = { \
 553                         .side_struct = _struct, \
 554                 }, \
 555         }
 556 #define side_field_struct(_name, _struct) \
 557         _side_field(_name, side_type_struct(SIDE_PARAM(_struct)))
 558
 559 #define _side_type_struct_define(_fields, _attr) \
 560         { \
 561                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \
 562                 .nr_attr  = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 563                 .fields = _fields, \
 564                 .attr = _attr, \
 565         }
 566
 567 #define side_define_struct(_identifier, _fields, _attr) \
 568         const struct side_type_struct _identifier = _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr))
 569
 570 #define side_struct_literal(_fields, _attr) \
 571         SIDE_COMPOUND_LITERAL(const struct side_type_struct, \
 572                 _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr)))
 573
 574 #define side_type_array(_elem_type, _length, _attr) \
 575         { \
 576                 .type = SIDE_TYPE_ARRAY, \
 577                 .u = { \
 578                         .side_array = { \
 579                                 .elem_type = _elem_type, \
 580                                 .attr = _attr, \
 581                                 .length = _length, \
 582                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 583                         }, \
 584                 }, \
 585         }
 586 #define side_field_array(_name, _elem_type, _length, _attr) \
 587         _side_field(_name, side_type_array(SIDE_PARAM(_elem_type), _length, SIDE_PARAM(_attr)))
 588
 589 #define side_type_vla(_elem_type, _attr) \
 590         { \
 591                 .type = SIDE_TYPE_VLA, \
 592                 .u = { \
 593                         .side_vla = { \
 594                                 .elem_type = _elem_type, \
 595                                 .attr = _attr, \
 596                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 597                         }, \
 598                 }, \
 599         }
 600 #define side_field_vla(_name, _elem_type, _attr) \
 601         _side_field(_name, side_type_vla(SIDE_PARAM(_elem_type), SIDE_PARAM(_attr)))
 602
 603 #define side_type_vla_visitor(_elem_type, _visitor, _attr) \
 604         { \
 605                 .type = SIDE_TYPE_VLA_VISITOR, \
 606                 .u = { \
 607                         .side_vla_visitor = { \
 608                                 .elem_type = SIDE_PARAM(_elem_type), \
 609                                 .visitor = _visitor, \
 610                                 .attr = _attr, \
 611                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 612                         }, \
 613                 }, \
 614         }
 615 #define side_field_vla_visitor(_name, _elem_type, _visitor, _attr) \
 616         _side_field(_name, side_type_vla_visitor(SIDE_PARAM(_elem_type), _visitor, SIDE_PARAM(_attr)))
 617
 618 #define side_elem(...) \
 619         SIDE_COMPOUND_LITERAL(const struct side_type_description, __VA_ARGS__)
 620
 621 #define side_field_list(...) \
 622         SIDE_COMPOUND_LITERAL(const struct side_event_field, __VA_ARGS__)
 623
 624 /* Static field arguments */
 625
 626 #define side_arg_bool(_val)             { .type = SIDE_TYPE_BOOL, .u = { .side_bool = !!(_val) } }
 627 #define side_arg_u8(_val)               { .type = SIDE_TYPE_U8, .u = { .side_u8 = (_val) } }
 628 #define side_arg_u16(_val)              { .type = SIDE_TYPE_U16, .u = { .side_u16 = (_val) } }
 629 #define side_arg_u32(_val)              { .type = SIDE_TYPE_U32, .u = { .side_u32 = (_val) } }
 630 #define side_arg_u64(_val)              { .type = SIDE_TYPE_U64, .u = { .side_u64 = (_val) } }
 631 #define side_arg_s8(_val)               { .type = SIDE_TYPE_S8, .u = { .side_s8 = (_val) } }
 632 #define side_arg_s16(_val)              { .type = SIDE_TYPE_S16, .u = { .side_s16 = (_val) } }
 633 #define side_arg_s32(_val)              { .type = SIDE_TYPE_S32, .u = { .side_s32 = (_val) } }
 634 #define side_arg_s64(_val)              { .type = SIDE_TYPE_S64, .u = { .side_s64 = (_val) } }
 635 #define side_arg_byte(_val)             { .type = SIDE_TYPE_BYTE, .u = { .side_byte = (_val) } }
 636 #define side_arg_enum_bitmap8(_val)     { .type = SIDE_TYPE_ENUM_BITMAP8, .u = { .side_u8 = (_val) } }
 637 #define side_arg_enum_bitmap16(_val)    { .type = SIDE_TYPE_ENUM_BITMAP16, .u = { .side_u16 = (_val) } }
 638 #define side_arg_enum_bitmap32(_val)    { .type = SIDE_TYPE_ENUM_BITMAP32, .u = { .side_u32 = (_val) } }
 639 #define side_arg_enum_bitmap64(_val)    { .type = SIDE_TYPE_ENUM_BITMAP64, .u = { .side_u64 = (_val) } }
 640 #define side_arg_enum_bitmap_array(_side_type)  { .type = SIDE_TYPE_ENUM_BITMAP_ARRAY, .u = { .side_array = (_side_type) } }
 641 #define side_arg_enum_bitmap_vla(_side_type)    { .type = SIDE_TYPE_ENUM_BITMAP_VLA, .u = { .side_vla = (_side_type) } }
 642 #define side_arg_float_binary16(_val)   { .type = SIDE_TYPE_FLOAT_BINARY16, .u = { .side_float_binary16 = (_val) } }
 643 #define side_arg_float_binary32(_val)   { .type = SIDE_TYPE_FLOAT_BINARY32, .u = { .side_float_binary32 = (_val) } }
 644 #define side_arg_float_binary64(_val)   { .type = SIDE_TYPE_FLOAT_BINARY64, .u = { .side_float_binary64 = (_val) } }
 645 #define side_arg_float_binary128(_val)  { .type = SIDE_TYPE_FLOAT_BINARY128, .u = { .side_float_binary128 = (_val) } }
 646
 647 #define side_arg_string(_val)           { .type = SIDE_TYPE_STRING, .u = { .string = (_val) } }
 648 #define side_arg_struct(_side_type)     { .type = SIDE_TYPE_STRUCT, .u = { .side_struct = (_side_type) } }
 649 #define side_arg_array(_side_type)      { .type = SIDE_TYPE_ARRAY, .u = { .side_array = (_side_type) } }
 650 #define side_arg_vla(_side_type)        { .type = SIDE_TYPE_VLA, .u = { .side_vla = (_side_type) } }
 651 #define side_arg_vla_visitor(_ctx)      { .type = SIDE_TYPE_VLA_VISITOR, .u = { .side_vla_app_visitor_ctx = (_ctx) } }
 652
 653 #define side_arg_array_u8(_ptr)         { .type = SIDE_TYPE_ARRAY_U8, .u = { .side_array_fixint = (_ptr) } }
 654 #define side_arg_array_u16(_ptr)        { .type = SIDE_TYPE_ARRAY_U16, .u = { .side_array_fixint = (_ptr) } }
 655 #define side_arg_array_u32(_ptr)        { .type = SIDE_TYPE_ARRAY_U32, .u = { .side_array_fixint = (_ptr) } }
 656 #define side_arg_array_u64(_ptr)        { .type = SIDE_TYPE_ARRAY_U64, .u = { .side_array_fixint = (_ptr) } }
 657 #define side_arg_array_s8(_ptr)         { .type = SIDE_TYPE_ARRAY_S8, .u = { .side_array_fixint = (_ptr) } }
 658 #define side_arg_array_s16(_ptr)        { .type = SIDE_TYPE_ARRAY_S16, .u = { .side_array_fixint  = (_ptr) } }
 659 #define side_arg_array_s32(_ptr)        { .type = SIDE_TYPE_ARRAY_S32, .u = { .side_array_fixint = (_ptr) } }
 660 #define side_arg_array_s64(_ptr)        { .type = SIDE_TYPE_ARRAY_S64, .u = { .side_array_fixint = (_ptr) } }
 661 #define side_arg_array_byte(_ptr)       { .type = SIDE_TYPE_ARRAY_BYTE, .u = { .side_array_fixint = (_ptr) } }
 662
 663 #define side_arg_vla_u8(_ptr, _length)  { .type = SIDE_TYPE_VLA_U8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } }
 664 #define side_arg_vla_u16(_ptr, _length) { .type = SIDE_TYPE_VLA_U16, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 665 #define side_arg_vla_u32(_ptr, _length) { .type = SIDE_TYPE_VLA_U32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 666 #define side_arg_vla_u64(_ptr, _length) { .type = SIDE_TYPE_VLA_U64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 667 #define side_arg_vla_s8(_ptr, _length)  { .type = SIDE_TYPE_VLA_S8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 668 #define side_arg_vla_s16(_ptr, _length) { .type = SIDE_TYPE_VLA_S16, .u = { .side_vla_fixint  = { .p = (_ptr), .length = (_length) } } }
 669 #define side_arg_vla_s32(_ptr, _length) { .type = SIDE_TYPE_VLA_S32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 670 #define side_arg_vla_s64(_ptr, _length) { .type = SIDE_TYPE_VLA_S64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 671 #define side_arg_vla_byte(_ptr, _length) { .type = SIDE_TYPE_VLA_BYTE, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 672
 673 #define side_arg_dynamic(_dynamic_arg_type) \
 674         { \
 675                 .type = SIDE_TYPE_DYNAMIC, \
 676                 .u = { \
 677                         .dynamic = _dynamic_arg_type, \
 678                 }, \
 679         }
 680
 681 /* Dynamic field arguments */
 682
 683 #define side_arg_dynamic_null(_attr) \
 684         { \
 685                 .dynamic_type = SIDE_DYNAMIC_TYPE_NULL, \
 686                 .u = { \
 687                         .side_basic = { \
 688                                 .attr = _attr, \
 689                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 690                         }, \
 691                 }, \
 692         }
 693
 694 #define side_arg_dynamic_bool(_val, _attr) \
 695         { \
 696                 .dynamic_type = SIDE_DYNAMIC_TYPE_BOOL, \
 697                 .u = { \
 698                         .side_basic = { \
 699                                 .attr = _attr, \
 700                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 701                                 .u = { \
 702                                         .side_bool = !!(_val), \
 703                                 }, \
 704                         }, \
 705                 }, \
 706         }
 707
 708 #define side_arg_dynamic_u8(_val, _attr) \
 709         { \
 710                 .dynamic_type = SIDE_DYNAMIC_TYPE_U8, \
 711                 .u = { \
 712                         .side_basic = { \
 713                                 .attr = _attr, \
 714                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 715                                 .u = { \
 716                                         .side_u8 = (_val), \
 717                                 }, \
 718                         }, \
 719                 }, \
 720         }
 721 #define side_arg_dynamic_u16(_val, _attr) \
 722         { \
 723                 .dynamic_type = SIDE_DYNAMIC_TYPE_U16, \
 724                 .u = { \
 725                         .side_basic = { \
 726                                 .attr = _attr, \
 727                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 728                                 .u = { \
 729                                         .side_u16 = (_val), \
 730                                 }, \
 731                         }, \
 732                 }, \
 733         }
 734 #define side_arg_dynamic_u32(_val, _attr) \
 735         { \
 736                 .dynamic_type = SIDE_DYNAMIC_TYPE_U32, \
 737                 .u = { \
 738                         .side_basic = { \
 739                                 .attr = _attr, \
 740                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 741                                 .u = { \
 742                                         .side_u32 = (_val), \
 743                                 }, \
 744                         }, \
 745                 }, \
 746         }
 747 #define side_arg_dynamic_u64(_val, _attr) \
 748         { \
 749                 .dynamic_type = SIDE_DYNAMIC_TYPE_U64, \
 750                 .u = { \
 751                         .side_basic = { \
 752                                 .attr = _attr, \
 753                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 754                                 .u = { \
 755                                         .side_u64 = (_val), \
 756                                 }, \
 757                         }, \
 758                 }, \
 759         }
 760
 761 #define side_arg_dynamic_s8(_val, _attr) \
 762         { \
 763                 .dynamic_type = SIDE_DYNAMIC_TYPE_S8, \
 764                 .u = { \
 765                         .side_basic = { \
 766                                 .attr = _attr, \
 767                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 768                                 .u = { \
 769                                         .side_s8 = (_val), \
 770                                 }, \
 771                         }, \
 772                 }, \
 773         }
 774 #define side_arg_dynamic_s16(_val, _attr) \
 775         { \
 776                 .dynamic_type = SIDE_DYNAMIC_TYPE_S16, \
 777                 .u = { \
 778                         .side_basic = { \
 779                                 .attr = _attr, \
 780                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 781                                 .u = { \
 782                                         .side_s16 = (_val), \
 783                                 }, \
 784                         }, \
 785                 }, \
 786         }
 787 #define side_arg_dynamic_s32(_val, _attr) \
 788         { \
 789                 .dynamic_type = SIDE_DYNAMIC_TYPE_S32, \
 790                 .u = { \
 791                         .side_basic = { \
 792                                 .attr = _attr, \
 793                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 794                                 .u = { \
 795                                         .side_s32 = (_val), \
 796                                 }, \
 797                         }, \
 798                 }, \
 799         }
 800 #define side_arg_dynamic_s64(_val, _attr) \
 801         { \
 802                 .dynamic_type = SIDE_DYNAMIC_TYPE_S64, \
 803                 .u = { \
 804                         .side_basic = { \
 805                                 .attr = _attr, \
 806                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 807                                 .u = { \
 808                                         .side_s64 = (_val), \
 809                                 }, \
 810                         }, \
 811                 }, \
 812         }
 813 #define side_arg_dynamic_byte(_val, _attr) \
 814         { \
 815                 .dynamic_type = SIDE_DYNAMIC_TYPE_BYTE, \
 816                 .u = { \
 817                         .side_basic = { \
 818                                 .attr = _attr, \
 819                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 820                                 .u = { \
 821                                         .side_byte = (_val), \
 822                                 }, \
 823                         }, \
 824                 }, \
 825         }
 826
 827 #define side_arg_dynamic_float_binary16(_val, _attr) \
 828         { \
 829                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY16, \
 830                 .u = { \
 831                         .side_basic = { \
 832                                 .attr = _attr, \
 833                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 834                                 .u = { \
 835                                         .side_float_binary16 = (_val), \
 836                                 }, \
 837                         }, \
 838                 }, \
 839         }
 840 #define side_arg_dynamic_float_binary32(_val, _attr) \
 841         { \
 842                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY32, \
 843                 .u = { \
 844                         .side_basic = { \
 845                                 .attr = _attr, \
 846                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 847                                 .u = { \
 848                                         .side_float_binary32 = (_val), \
 849                                 }, \
 850                         }, \
 851                 }, \
 852         }
 853 #define side_arg_dynamic_float_binary64(_val, _attr) \
 854         { \
 855                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY64, \
 856                 .u = { \
 857                         .side_basic = { \
 858                                 .attr = _attr, \
 859                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 860                                 .u = { \
 861                                         .side_float_binary64 = (_val), \
 862                                 }, \
 863                         }, \
 864                 }, \
 865         }
 866 #define side_arg_dynamic_float_binary128(_val, _attr) \
 867         { \
 868                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY128, \
 869                 .u = { \
 870                         .side_basic = { \
 871                                 .attr = _attr, \
 872                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 873                                 .u = { \
 874                                         .side_float_binary128 = (_val), \
 875                                 }, \
 876                         }, \
 877                 }, \
 878         }
 879
 880 #define side_arg_dynamic_string(_val, _attr) \
 881         { \
 882                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRING, \
 883                 .u = { \
 884                         .side_basic = { \
 885                                 .attr = _attr, \
 886                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 887                                 .u = { \
 888                                         .string = (_val), \
 889                                 }, \
 890                         }, \
 891                 }, \
 892         }
 893
 894 #define side_arg_dynamic_vla(_vla) \
 895         { \
 896                 .dynamic_type = SIDE_DYNAMIC_TYPE_VLA, \
 897                 .u = { \
 898                         .side_dynamic_vla = (_vla), \
 899                 }, \
 900         }
 901
 902 #define side_arg_dynamic_vla_visitor(_dynamic_vla_visitor, _ctx, _attr) \
 903         { \
 904                 .dynamic_type = SIDE_DYNAMIC_TYPE_VLA_VISITOR, \
 905                 .u = { \
 906                         .side_dynamic_vla_visitor = { \
 907                                 .app_ctx = _ctx, \
 908                                 .visitor = _dynamic_vla_visitor, \
 909                                 .attr = _attr, \
 910                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 911                         }, \
 912                 }, \
 913         }
 914
 915 #define side_arg_dynamic_struct(_struct) \
 916         { \
 917                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT, \
 918                 .u = { \
 919                         .side_dynamic_struct = (_struct), \
 920                 }, \
 921         }
 922
 923 #define side_arg_dynamic_struct_visitor(_dynamic_struct_visitor, _ctx, _attr) \
 924         { \
 925                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT_VISITOR, \
 926                 .u = { \
 927                         .side_dynamic_struct_visitor = { \
 928                                 .app_ctx = _ctx, \
 929                                 .visitor = _dynamic_struct_visitor, \
 930                                 .attr = _attr, \
 931                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 932                         }, \
 933                 }, \
 934         }
 935
 936 #define side_arg_dynamic_define_vec(_identifier, _sav, _attr) \
 937         const struct side_arg_dynamic_vec _identifier##_vec[] = { _sav }; \
 938         const struct side_arg_dynamic_vec_vla _identifier = { \
 939                 .sav = _identifier##_vec, \
 940                 .attr = _attr, \
 941                 .len = SIDE_ARRAY_SIZE(_identifier##_vec), \
 942                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 943         }
 944
 945 #define side_arg_dynamic_define_struct(_identifier, _struct_fields, _attr) \
 946         const struct side_arg_dynamic_event_field _identifier##_fields[] = { _struct_fields }; \
 947         const struct side_arg_dynamic_event_struct _identifier = { \
 948                 .fields = _identifier##_fields, \
 949                 .attr = _attr, \
 950                 .len = SIDE_ARRAY_SIZE(_identifier##_fields), \
 951                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 952         }
 953
 954 #define side_arg_define_vec(_identifier, _sav) \
 955         const struct side_arg_vec _identifier##_vec[] = { _sav }; \
 956         const struct side_arg_vec_description _identifier = { \
 957                 .sav = _identifier##_vec, \
 958                 .len = SIDE_ARRAY_SIZE(_identifier##_vec), \
 959         }
 960
 961 #define side_arg_dynamic_field(_name, _elem) \
 962         { \
 963                 .field_name = _name, \
 964                 .elem = _elem, \
 965         }
 966
 967 #define side_arg_list(...)      __VA_ARGS__
 968
 969 #define side_define_enum(_identifier, _mappings, _attr) \
 970         const struct side_enum_mappings _identifier = { \
 971                 .mappings = _mappings, \
 972                 .attr = _attr, \
 973                 .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \
 974                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 975         }
 976
 977 #define side_enum_mapping_list(...) \
 978         SIDE_COMPOUND_LITERAL(const struct side_enum_mapping, __VA_ARGS__)
 979
 980 #define side_enum_mapping_range(_label, _begin, _end) \
 981         { \
 982                 .range_begin = _begin, \
 983                 .range_end = _end, \
 984                 .label = _label, \
 985         }
 986
 987 #define side_enum_mapping_value(_label, _value) \
 988         { \
 989                 .range_begin = _value, \
 990                 .range_end = _value, \
 991                 .label = _label, \
 992         }
 993
 994 #define side_define_enum_bitmap(_identifier, _mappings, _attr) \
 995         const struct side_enum_bitmap_mappings _identifier = { \
 996                 .mappings = _mappings, \
 997                 .attr = _attr, \
 998                 .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \
 999                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1000         }
1001
1002 #define side_enum_bitmap_mapping_list(...) \
1003         SIDE_COMPOUND_LITERAL(const struct side_enum_bitmap_mapping, __VA_ARGS__)
1004
1005 #define side_enum_bitmap_mapping_range(_label, _begin, _end) \
1006         { \
1007                 .range_begin = _begin, \
1008                 .range_end = _end, \
1009                 .label = _label, \
1010         }
1011
1012 #define side_enum_bitmap_mapping_value(_label, _value) \
1013         { \
1014                 .range_begin = _value, \
1015                 .range_end = _value, \
1016                 .label = _label, \
1017         }
1018
1019 #define side_event_cond(_identifier) if (side_unlikely(side_event_enable__##_identifier))
1020
1021 #define side_event_call(_identifier, _sav) \
1022         { \
1023                 const struct side_arg_vec side_sav[] = { _sav }; \
1024                 const struct side_arg_vec_description sav_desc = { \
1025                         .sav = side_sav, \
1026                         .len = SIDE_ARRAY_SIZE(side_sav), \
1027                 }; \
1028                 side_call(&(_identifier), &sav_desc); \
1029         }
1030
1031 #define side_event(_identifier, _sav) \
1032         side_event_cond(_identifier) \
1033                 side_event_call(_identifier, SIDE_PARAM(_sav))
1034
1035 #define side_event_call_variadic(_identifier, _sav, _var_fields, _attr) \
1036         { \
1037                 const struct side_arg_vec side_sav[] = { _sav }; \
1038                 const struct side_arg_vec_description sav_desc = { \
1039                         .sav = side_sav, \
1040                         .len = SIDE_ARRAY_SIZE(side_sav), \
1041                 }; \
1042                 const struct side_arg_dynamic_event_field side_fields[] = { _var_fields }; \
1043                 const struct side_arg_dynamic_event_struct var_struct = { \
1044                         .fields = side_fields, \
1045                         .attr = _attr, \
1046                         .len = SIDE_ARRAY_SIZE(side_fields), \
1047                         .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1048                 }; \
1049                 side_call_variadic(&(_identifier), &sav_desc, &var_struct); \
1050         }
1051
1052 #define side_event_variadic(_identifier, _sav, _var, _attr) \
1053         side_event_cond(_identifier) \
1054                 side_event_call_variadic(_identifier, SIDE_PARAM(_sav), SIDE_PARAM(_var), SIDE_PARAM(_attr))
1055
1056 #define _side_define_event(_linkage, _identifier, _provider, _event, _loglevel, _fields, _attr, _flags) \
1057         _linkage uint32_t side_event_enable__##_identifier __attribute__((section("side_event_enable"))); \
1058         _linkage struct side_event_description __attribute__((section("side_event_description"))) \
1059                         _identifier = { \
1060                 .version = 0, \
1061                 .enabled = &(side_event_enable__##_identifier), \
1062                 .loglevel = _loglevel, \
1063                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \
1064                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1065                 ._unused = 0, \
1066                 .flags = (_flags), \
1067                 .provider_name = _provider, \
1068                 .event_name = _event, \
1069                 .fields = _fields, \
1070                 .attr = _attr, \
1071                 .callbacks = &side_empty_callback, \
1072         }; \
1073         static const struct side_event_description *side_event_ptr__##_identifier \
1074                 __attribute__((section("side_event_description_ptr"), used)) = &(_identifier);
1075
1076 #define side_static_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1077         _side_define_event(static, _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1078                         SIDE_PARAM(_attr), 0)
1079
1080 #define side_static_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1081         _side_define_event(static, _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1082                         SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC)
1083
1084 #define side_hidden_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1085         _side_define_event(__attribute__((visibility("hidden"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1086                         SIDE_PARAM(_attr), 0)
1087
1088 #define side_hidden_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1089         _side_define_event(__attribute__((visibility("hidden"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1090                         SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC)
1091
1092 #define side_export_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1093         _side_define_event(__attribute__((visibility("default"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1094                         SIDE_PARAM(_attr), 0)
1095
1096 #define side_export_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1097         _side_define_event(__attribute__((visibility("default"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1098                         SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC)
1099
1100 #define side_declare_event(_identifier) \
1101         extern uint32_t side_event_enable_##_identifier; \
1102         extern struct side_event_description _identifier
1103
1104 void side_call(const struct side_event_description *desc,
1105         const struct side_arg_vec_description *sav_desc);
1106 void side_call_variadic(const struct side_event_description *desc,
1107         const struct side_arg_vec_description *sav_desc,
1108         const struct side_arg_dynamic_event_struct *var_struct);
1109
1110 extern const struct side_callback side_empty_callback;
1111
1112 #endif /* _SIDE_TRACE_H */