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         int64_t range_begin;
 205         int64_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_callbacks {
 287         struct side_callback *cb;
 288         uint32_t nr_cb;
 289 };
 290
 291 struct side_event_description {
 292         uint32_t version;
 293         uint32_t *enabled;
 294         uint32_t loglevel;      /* enum side_loglevel */
 295         uint32_t nr_fields;
 296         uint32_t nr_attr;
 297         uint32_t _unused;
 298         uint64_t flags;
 299         const char *provider_name;
 300         const char *event_name;
 301         const struct side_event_field *fields;
 302         const struct side_attr *attr;
 303         struct side_callbacks *callbacks;
 304 };
 305
 306 struct side_arg_dynamic_vec {
 307         uint32_t dynamic_type;  /* enum side_dynamic_type */
 308         union {
 309                 /* Basic types */
 310                 struct {
 311                         const struct side_attr *attr;
 312                         uint32_t nr_attr;
 313                         union {
 314                                 uint8_t side_bool;
 315                                 uint8_t side_u8;
 316                                 uint16_t side_u16;
 317                                 uint32_t side_u32;
 318                                 uint64_t side_u64;
 319                                 int8_t side_s8;
 320                                 int16_t side_s16;
 321                                 int32_t side_s32;
 322                                 int64_t side_s64;
 323                                 uint8_t side_byte;
 324 #if __HAVE_FLOAT16
 325                                 _Float16 side_float_binary16;
 326 #endif
 327 #if __HAVE_FLOAT32
 328                                 _Float32 side_float_binary32;
 329 #endif
 330 #if __HAVE_FLOAT64
 331                                 _Float64 side_float_binary64;
 332 #endif
 333 #if __HAVE_FLOAT128
 334                                 _Float128 side_float_binary128;
 335 #endif
 336                                 const char *string;
 337                         } u;
 338                 } side_basic;
 339
 340                 /* Compound types */
 341                 const struct side_arg_dynamic_event_struct *side_dynamic_struct;
 342                 struct {
 343                         void *app_ctx;
 344                         side_dynamic_struct_visitor visitor;
 345                         const struct side_attr *attr;
 346                         uint32_t nr_attr;
 347                 } side_dynamic_struct_visitor;
 348                 const struct side_arg_dynamic_vec_vla *side_dynamic_vla;
 349                 struct {
 350                         void *app_ctx;
 351                         side_dynamic_vla_visitor visitor;
 352                         const struct side_attr *attr;
 353                         uint32_t nr_attr;
 354                 } side_dynamic_vla_visitor;
 355         } u;
 356 };
 357
 358 struct side_arg_dynamic_vec_vla {
 359         const struct side_arg_dynamic_vec *sav;
 360         const struct side_attr *attr;
 361         uint32_t len;
 362         uint32_t nr_attr;
 363 };
 364
 365 struct side_arg_dynamic_event_field {
 366         const char *field_name;
 367         const struct side_arg_dynamic_vec elem;
 368 };
 369
 370 struct side_arg_dynamic_event_struct {
 371         const struct side_arg_dynamic_event_field *fields;
 372         const struct side_attr *attr;
 373         uint32_t len;
 374         uint32_t nr_attr;
 375 };
 376
 377 struct side_arg_vec {
 378         enum side_type type;
 379         union {
 380                 /* Basic types */
 381                 uint8_t side_bool;
 382                 uint8_t side_u8;
 383                 uint16_t side_u16;
 384                 uint32_t side_u32;
 385                 uint64_t side_u64;
 386                 int8_t side_s8;
 387                 int16_t side_s16;
 388                 int32_t side_s32;
 389                 int64_t side_s64;
 390                 uint8_t side_byte;
 391 #if __HAVE_FLOAT16
 392                 _Float16 side_float_binary16;
 393 #endif
 394 #if __HAVE_FLOAT32
 395                 _Float32 side_float_binary32;
 396 #endif
 397 #if __HAVE_FLOAT64
 398                 _Float64 side_float_binary64;
 399 #endif
 400 #if __HAVE_FLOAT128
 401                 _Float128 side_float_binary128;
 402 #endif
 403                 const char *string;
 404
 405                 /* Compound types */
 406                 const struct side_arg_vec_description *side_struct;
 407                 const struct side_arg_vec_description *side_array;
 408                 const struct side_arg_vec_description *side_vla;
 409                 void *side_vla_app_visitor_ctx;
 410                 void *side_array_fixint;
 411                 struct {
 412                         void *p;
 413                         uint32_t length;
 414                 } side_vla_fixint;
 415
 416                 /* Dynamic type */
 417                 struct side_arg_dynamic_vec dynamic;
 418         } u;
 419 };
 420
 421 struct side_arg_vec_description {
 422         const struct side_arg_vec *sav;
 423         uint32_t len;
 424 };
 425
 426 /* The visitor pattern is a double-dispatch visitor. */
 427 struct side_tracer_visitor_ctx {
 428         enum side_visitor_status (*write_elem)(
 429                         const struct side_tracer_visitor_ctx *tracer_ctx,
 430                         const struct side_arg_vec *elem);
 431         void *priv;             /* Private tracer context. */
 432 };
 433
 434 struct side_tracer_dynamic_struct_visitor_ctx {
 435         enum side_visitor_status (*write_field)(
 436                         const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
 437                         const struct side_arg_dynamic_event_field *dynamic_field);
 438         void *priv;             /* Private tracer context. */
 439 };
 440
 441 struct side_tracer_dynamic_vla_visitor_ctx {
 442         enum side_visitor_status (*write_elem)(
 443                         const struct side_tracer_dynamic_vla_visitor_ctx *tracer_ctx,
 444                         const struct side_arg_dynamic_vec *elem);
 445         void *priv;             /* Private tracer context. */
 446 };
 447
 448 /* Event and type attributes */
 449
 450 #define side_attr(_key, _value) \
 451         { \
 452                 .key = _key, \
 453                 .value = SIDE_PARAM(_value), \
 454         }
 455
 456 #define side_attr_list(...) \
 457         SIDE_COMPOUND_LITERAL(const struct side_attr, __VA_ARGS__)
 458
 459 #define side_attr_null(_val)            { .type = SIDE_ATTR_TYPE_NULL }
 460 #define side_attr_bool(_val)            { .type = SIDE_ATTR_TYPE_BOOL, .u = { .side_bool = !!(_val) } }
 461 #define side_attr_u8(_val)              { .type = SIDE_ATTR_TYPE_U8, .u = { .side_u8 = (_val) } }
 462 #define side_attr_u16(_val)             { .type = SIDE_ATTR_TYPE_U16, .u = { .side_u16 = (_val) } }
 463 #define side_attr_u32(_val)             { .type = SIDE_ATTR_TYPE_U32, .u = { .side_u32 = (_val) } }
 464 #define side_attr_u64(_val)             { .type = SIDE_ATTR_TYPE_U64, .u = { .side_u64 = (_val) } }
 465 #define side_attr_s8(_val)              { .type = SIDE_ATTR_TYPE_S8, .u = { .side_s8 = (_val) } }
 466 #define side_attr_s16(_val)             { .type = SIDE_ATTR_TYPE_S16, .u = { .side_s16 = (_val) } }
 467 #define side_attr_s32(_val)             { .type = SIDE_ATTR_TYPE_S32, .u = { .side_s32 = (_val) } }
 468 #define side_attr_s64(_val)             { .type = SIDE_ATTR_TYPE_S64, .u = { .side_s64 = (_val) } }
 469 #define side_attr_float_binary16(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY16, .u = { .side_float_binary16 = (_val) } }
 470 #define side_attr_float_binary32(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY32, .u = { .side_float_binary32 = (_val) } }
 471 #define side_attr_float_binary64(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY64, .u = { .side_float_binary64 = (_val) } }
 472 #define side_attr_float_binary128(_val) { .type = SIDE_ATTR_TYPE_FLOAT_BINARY128, .u = { .side_float_binary128 = (_val) } }
 473 #define side_attr_string(_val)          { .type = SIDE_ATTR_TYPE_STRING, .u = { .string = (_val) } }
 474
 475 /* Static field definition */
 476
 477 #define _side_type_basic(_type, _attr) \
 478         { \
 479                 .type = _type, \
 480                 .u = { \
 481                         .side_basic = { \
 482                                 .attr = _attr, \
 483                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 484                         }, \
 485                 }, \
 486         }
 487
 488 #define side_type_bool(_attr)                           _side_type_basic(SIDE_TYPE_BOOL, SIDE_PARAM(_attr))
 489 #define side_type_u8(_attr)                             _side_type_basic(SIDE_TYPE_U8, SIDE_PARAM(_attr))
 490 #define side_type_u16(_attr)                            _side_type_basic(SIDE_TYPE_U16, SIDE_PARAM(_attr))
 491 #define side_type_u32(_attr)                            _side_type_basic(SIDE_TYPE_U32, SIDE_PARAM(_attr))
 492 #define side_type_u64(_attr)                            _side_type_basic(SIDE_TYPE_U64, SIDE_PARAM(_attr))
 493 #define side_type_s8(_attr)                             _side_type_basic(SIDE_TYPE_S8, SIDE_PARAM(_attr))
 494 #define side_type_s16(_attr)                            _side_type_basic(SIDE_TYPE_S16, SIDE_PARAM(_attr))
 495 #define side_type_s32(_attr)                            _side_type_basic(SIDE_TYPE_S32, SIDE_PARAM(_attr))
 496 #define side_type_s64(_attr)                            _side_type_basic(SIDE_TYPE_S64, SIDE_PARAM(_attr))
 497 #define side_type_byte(_attr)                           _side_type_basic(SIDE_TYPE_BYTE, SIDE_PARAM(_attr))
 498 #define side_type_float_binary16(_attr)                 _side_type_basic(SIDE_TYPE_FLOAT_BINARY16, SIDE_PARAM(_attr))
 499 #define side_type_float_binary32(_attr)                 _side_type_basic(SIDE_TYPE_FLOAT_BINARY32, SIDE_PARAM(_attr))
 500 #define side_type_float_binary64(_attr)                 _side_type_basic(SIDE_TYPE_FLOAT_BINARY64, SIDE_PARAM(_attr))
 501 #define side_type_float_binary128(_attr)                _side_type_basic(SIDE_TYPE_FLOAT_BINARY128, SIDE_PARAM(_attr))
 502 #define side_type_string(_attr)                         _side_type_basic(SIDE_TYPE_STRING, SIDE_PARAM(_attr))
 503 #define side_type_dynamic(_attr)                        _side_type_basic(SIDE_TYPE_DYNAMIC, SIDE_PARAM(_attr))
 504
 505 #define _side_field(_name, _type) \
 506         { \
 507                 .field_name = _name, \
 508                 .side_type = _type, \
 509         }
 510
 511 #define side_field_bool(_name, _attr)                   _side_field(_name, side_type_bool(SIDE_PARAM(_attr)))
 512 #define side_field_u8(_name, _attr)                     _side_field(_name, side_type_u8(SIDE_PARAM(_attr)))
 513 #define side_field_u16(_name, _attr)                    _side_field(_name, side_type_u16(SIDE_PARAM(_attr)))
 514 #define side_field_u32(_name, _attr)                    _side_field(_name, side_type_u32(SIDE_PARAM(_attr)))
 515 #define side_field_u64(_name, _attr)                    _side_field(_name, side_type_u64(SIDE_PARAM(_attr)))
 516 #define side_field_s8(_name, _attr)                     _side_field(_name, side_type_s8(SIDE_PARAM(_attr)))
 517 #define side_field_s16(_name, _attr)                    _side_field(_name, side_type_s16(SIDE_PARAM(_attr)))
 518 #define side_field_s32(_name, _attr)                    _side_field(_name, side_type_s32(SIDE_PARAM(_attr)))
 519 #define side_field_s64(_name, _attr)                    _side_field(_name, side_type_s64(SIDE_PARAM(_attr)))
 520 #define side_field_byte(_name, _attr)                   _side_field(_name, side_type_byte(SIDE_PARAM(_attr)))
 521 #define side_field_float_binary16(_name, _attr)         _side_field(_name, side_type_float_binary16(SIDE_PARAM(_attr)))
 522 #define side_field_float_binary32(_name, _attr)         _side_field(_name, side_type_float_binary32(SIDE_PARAM(_attr)))
 523 #define side_field_float_binary64(_name, _attr)         _side_field(_name, side_type_float_binary64(SIDE_PARAM(_attr)))
 524 #define side_field_float_binary128(_name, _attr)        _side_field(_name, side_type_float_binary128(SIDE_PARAM(_attr)))
 525 #define side_field_string(_name, _attr)                 _side_field(_name, side_type_string(SIDE_PARAM(_attr)))
 526 #define side_field_dynamic(_name, _attr)                _side_field(_name, side_type_dynamic(SIDE_PARAM(_attr)))
 527
 528 #define side_type_enum(_mappings, _elem_type) \
 529         { \
 530                 .type = SIDE_TYPE_ENUM, \
 531                 .u = { \
 532                         .side_enum = { \
 533                                 .mappings = _mappings, \
 534                                 .elem_type = _elem_type, \
 535                         }, \
 536                 }, \
 537         }
 538 #define side_field_enum(_name, _mappings, _elem_type) \
 539         _side_field(_name, side_type_enum(SIDE_PARAM(_mappings), SIDE_PARAM(_elem_type)))
 540
 541 #define side_type_enum_bitmap(_mappings, _elem_type) \
 542         { \
 543                 .type = SIDE_TYPE_ENUM_BITMAP, \
 544                 .u = { \
 545                         .side_enum_bitmap = { \
 546                                 .mappings = _mappings, \
 547                                 .elem_type = _elem_type, \
 548                         }, \
 549                 }, \
 550         }
 551 #define side_field_enum_bitmap(_name, _mappings, _elem_type) \
 552         _side_field(_name, side_type_enum_bitmap(SIDE_PARAM(_mappings), SIDE_PARAM(_elem_type)))
 553
 554 #define side_type_struct(_struct) \
 555         { \
 556                 .type = SIDE_TYPE_STRUCT, \
 557                 .u = { \
 558                         .side_struct = _struct, \
 559                 }, \
 560         }
 561 #define side_field_struct(_name, _struct) \
 562         _side_field(_name, side_type_struct(SIDE_PARAM(_struct)))
 563
 564 #define _side_type_struct_define(_fields, _attr) \
 565         { \
 566                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \
 567                 .nr_attr  = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 568                 .fields = _fields, \
 569                 .attr = _attr, \
 570         }
 571
 572 #define side_define_struct(_identifier, _fields, _attr) \
 573         const struct side_type_struct _identifier = _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr))
 574
 575 #define side_struct_literal(_fields, _attr) \
 576         SIDE_COMPOUND_LITERAL(const struct side_type_struct, \
 577                 _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr)))
 578
 579 #define side_type_array(_elem_type, _length, _attr) \
 580         { \
 581                 .type = SIDE_TYPE_ARRAY, \
 582                 .u = { \
 583                         .side_array = { \
 584                                 .elem_type = _elem_type, \
 585                                 .attr = _attr, \
 586                                 .length = _length, \
 587                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 588                         }, \
 589                 }, \
 590         }
 591 #define side_field_array(_name, _elem_type, _length, _attr) \
 592         _side_field(_name, side_type_array(SIDE_PARAM(_elem_type), _length, SIDE_PARAM(_attr)))
 593
 594 #define side_type_vla(_elem_type, _attr) \
 595         { \
 596                 .type = SIDE_TYPE_VLA, \
 597                 .u = { \
 598                         .side_vla = { \
 599                                 .elem_type = _elem_type, \
 600                                 .attr = _attr, \
 601                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 602                         }, \
 603                 }, \
 604         }
 605 #define side_field_vla(_name, _elem_type, _attr) \
 606         _side_field(_name, side_type_vla(SIDE_PARAM(_elem_type), SIDE_PARAM(_attr)))
 607
 608 #define side_type_vla_visitor(_elem_type, _visitor, _attr) \
 609         { \
 610                 .type = SIDE_TYPE_VLA_VISITOR, \
 611                 .u = { \
 612                         .side_vla_visitor = { \
 613                                 .elem_type = SIDE_PARAM(_elem_type), \
 614                                 .visitor = _visitor, \
 615                                 .attr = _attr, \
 616                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 617                         }, \
 618                 }, \
 619         }
 620 #define side_field_vla_visitor(_name, _elem_type, _visitor, _attr) \
 621         _side_field(_name, side_type_vla_visitor(SIDE_PARAM(_elem_type), _visitor, SIDE_PARAM(_attr)))
 622
 623 #define side_elem(...) \
 624         SIDE_COMPOUND_LITERAL(const struct side_type_description, __VA_ARGS__)
 625
 626 #define side_field_list(...) \
 627         SIDE_COMPOUND_LITERAL(const struct side_event_field, __VA_ARGS__)
 628
 629 /* Static field arguments */
 630
 631 #define side_arg_bool(_val)             { .type = SIDE_TYPE_BOOL, .u = { .side_bool = !!(_val) } }
 632 #define side_arg_u8(_val)               { .type = SIDE_TYPE_U8, .u = { .side_u8 = (_val) } }
 633 #define side_arg_u16(_val)              { .type = SIDE_TYPE_U16, .u = { .side_u16 = (_val) } }
 634 #define side_arg_u32(_val)              { .type = SIDE_TYPE_U32, .u = { .side_u32 = (_val) } }
 635 #define side_arg_u64(_val)              { .type = SIDE_TYPE_U64, .u = { .side_u64 = (_val) } }
 636 #define side_arg_s8(_val)               { .type = SIDE_TYPE_S8, .u = { .side_s8 = (_val) } }
 637 #define side_arg_s16(_val)              { .type = SIDE_TYPE_S16, .u = { .side_s16 = (_val) } }
 638 #define side_arg_s32(_val)              { .type = SIDE_TYPE_S32, .u = { .side_s32 = (_val) } }
 639 #define side_arg_s64(_val)              { .type = SIDE_TYPE_S64, .u = { .side_s64 = (_val) } }
 640 #define side_arg_byte(_val)             { .type = SIDE_TYPE_BYTE, .u = { .side_byte = (_val) } }
 641 #define side_arg_enum_bitmap8(_val)     { .type = SIDE_TYPE_ENUM_BITMAP8, .u = { .side_u8 = (_val) } }
 642 #define side_arg_enum_bitmap16(_val)    { .type = SIDE_TYPE_ENUM_BITMAP16, .u = { .side_u16 = (_val) } }
 643 #define side_arg_enum_bitmap32(_val)    { .type = SIDE_TYPE_ENUM_BITMAP32, .u = { .side_u32 = (_val) } }
 644 #define side_arg_enum_bitmap64(_val)    { .type = SIDE_TYPE_ENUM_BITMAP64, .u = { .side_u64 = (_val) } }
 645 #define side_arg_enum_bitmap_array(_side_type)  { .type = SIDE_TYPE_ENUM_BITMAP_ARRAY, .u = { .side_array = (_side_type) } }
 646 #define side_arg_enum_bitmap_vla(_side_type)    { .type = SIDE_TYPE_ENUM_BITMAP_VLA, .u = { .side_vla = (_side_type) } }
 647 #define side_arg_float_binary16(_val)   { .type = SIDE_TYPE_FLOAT_BINARY16, .u = { .side_float_binary16 = (_val) } }
 648 #define side_arg_float_binary32(_val)   { .type = SIDE_TYPE_FLOAT_BINARY32, .u = { .side_float_binary32 = (_val) } }
 649 #define side_arg_float_binary64(_val)   { .type = SIDE_TYPE_FLOAT_BINARY64, .u = { .side_float_binary64 = (_val) } }
 650 #define side_arg_float_binary128(_val)  { .type = SIDE_TYPE_FLOAT_BINARY128, .u = { .side_float_binary128 = (_val) } }
 651
 652 #define side_arg_string(_val)           { .type = SIDE_TYPE_STRING, .u = { .string = (_val) } }
 653 #define side_arg_struct(_side_type)     { .type = SIDE_TYPE_STRUCT, .u = { .side_struct = (_side_type) } }
 654 #define side_arg_array(_side_type)      { .type = SIDE_TYPE_ARRAY, .u = { .side_array = (_side_type) } }
 655 #define side_arg_vla(_side_type)        { .type = SIDE_TYPE_VLA, .u = { .side_vla = (_side_type) } }
 656 #define side_arg_vla_visitor(_ctx)      { .type = SIDE_TYPE_VLA_VISITOR, .u = { .side_vla_app_visitor_ctx = (_ctx) } }
 657
 658 #define side_arg_array_u8(_ptr)         { .type = SIDE_TYPE_ARRAY_U8, .u = { .side_array_fixint = (_ptr) } }
 659 #define side_arg_array_u16(_ptr)        { .type = SIDE_TYPE_ARRAY_U16, .u = { .side_array_fixint = (_ptr) } }
 660 #define side_arg_array_u32(_ptr)        { .type = SIDE_TYPE_ARRAY_U32, .u = { .side_array_fixint = (_ptr) } }
 661 #define side_arg_array_u64(_ptr)        { .type = SIDE_TYPE_ARRAY_U64, .u = { .side_array_fixint = (_ptr) } }
 662 #define side_arg_array_s8(_ptr)         { .type = SIDE_TYPE_ARRAY_S8, .u = { .side_array_fixint = (_ptr) } }
 663 #define side_arg_array_s16(_ptr)        { .type = SIDE_TYPE_ARRAY_S16, .u = { .side_array_fixint  = (_ptr) } }
 664 #define side_arg_array_s32(_ptr)        { .type = SIDE_TYPE_ARRAY_S32, .u = { .side_array_fixint = (_ptr) } }
 665 #define side_arg_array_s64(_ptr)        { .type = SIDE_TYPE_ARRAY_S64, .u = { .side_array_fixint = (_ptr) } }
 666 #define side_arg_array_byte(_ptr)       { .type = SIDE_TYPE_ARRAY_BYTE, .u = { .side_array_fixint = (_ptr) } }
 667
 668 #define side_arg_vla_u8(_ptr, _length)  { .type = SIDE_TYPE_VLA_U8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } }
 669 #define side_arg_vla_u16(_ptr, _length) { .type = SIDE_TYPE_VLA_U16, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 670 #define side_arg_vla_u32(_ptr, _length) { .type = SIDE_TYPE_VLA_U32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 671 #define side_arg_vla_u64(_ptr, _length) { .type = SIDE_TYPE_VLA_U64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 672 #define side_arg_vla_s8(_ptr, _length)  { .type = SIDE_TYPE_VLA_S8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 673 #define side_arg_vla_s16(_ptr, _length) { .type = SIDE_TYPE_VLA_S16, .u = { .side_vla_fixint  = { .p = (_ptr), .length = (_length) } } }
 674 #define side_arg_vla_s32(_ptr, _length) { .type = SIDE_TYPE_VLA_S32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 675 #define side_arg_vla_s64(_ptr, _length) { .type = SIDE_TYPE_VLA_S64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 676 #define side_arg_vla_byte(_ptr, _length) { .type = SIDE_TYPE_VLA_BYTE, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 677
 678 #define side_arg_dynamic(_dynamic_arg_type) \
 679         { \
 680                 .type = SIDE_TYPE_DYNAMIC, \
 681                 .u = { \
 682                         .dynamic = _dynamic_arg_type, \
 683                 }, \
 684         }
 685
 686 /* Dynamic field arguments */
 687
 688 #define side_arg_dynamic_null(_attr) \
 689         { \
 690                 .dynamic_type = SIDE_DYNAMIC_TYPE_NULL, \
 691                 .u = { \
 692                         .side_basic = { \
 693                                 .attr = _attr, \
 694                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 695                         }, \
 696                 }, \
 697         }
 698
 699 #define side_arg_dynamic_bool(_val, _attr) \
 700         { \
 701                 .dynamic_type = SIDE_DYNAMIC_TYPE_BOOL, \
 702                 .u = { \
 703                         .side_basic = { \
 704                                 .attr = _attr, \
 705                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 706                                 .u = { \
 707                                         .side_bool = !!(_val), \
 708                                 }, \
 709                         }, \
 710                 }, \
 711         }
 712
 713 #define side_arg_dynamic_u8(_val, _attr) \
 714         { \
 715                 .dynamic_type = SIDE_DYNAMIC_TYPE_U8, \
 716                 .u = { \
 717                         .side_basic = { \
 718                                 .attr = _attr, \
 719                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 720                                 .u = { \
 721                                         .side_u8 = (_val), \
 722                                 }, \
 723                         }, \
 724                 }, \
 725         }
 726 #define side_arg_dynamic_u16(_val, _attr) \
 727         { \
 728                 .dynamic_type = SIDE_DYNAMIC_TYPE_U16, \
 729                 .u = { \
 730                         .side_basic = { \
 731                                 .attr = _attr, \
 732                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 733                                 .u = { \
 734                                         .side_u16 = (_val), \
 735                                 }, \
 736                         }, \
 737                 }, \
 738         }
 739 #define side_arg_dynamic_u32(_val, _attr) \
 740         { \
 741                 .dynamic_type = SIDE_DYNAMIC_TYPE_U32, \
 742                 .u = { \
 743                         .side_basic = { \
 744                                 .attr = _attr, \
 745                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 746                                 .u = { \
 747                                         .side_u32 = (_val), \
 748                                 }, \
 749                         }, \
 750                 }, \
 751         }
 752 #define side_arg_dynamic_u64(_val, _attr) \
 753         { \
 754                 .dynamic_type = SIDE_DYNAMIC_TYPE_U64, \
 755                 .u = { \
 756                         .side_basic = { \
 757                                 .attr = _attr, \
 758                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 759                                 .u = { \
 760                                         .side_u64 = (_val), \
 761                                 }, \
 762                         }, \
 763                 }, \
 764         }
 765
 766 #define side_arg_dynamic_s8(_val, _attr) \
 767         { \
 768                 .dynamic_type = SIDE_DYNAMIC_TYPE_S8, \
 769                 .u = { \
 770                         .side_basic = { \
 771                                 .attr = _attr, \
 772                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 773                                 .u = { \
 774                                         .side_s8 = (_val), \
 775                                 }, \
 776                         }, \
 777                 }, \
 778         }
 779 #define side_arg_dynamic_s16(_val, _attr) \
 780         { \
 781                 .dynamic_type = SIDE_DYNAMIC_TYPE_S16, \
 782                 .u = { \
 783                         .side_basic = { \
 784                                 .attr = _attr, \
 785                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 786                                 .u = { \
 787                                         .side_s16 = (_val), \
 788                                 }, \
 789                         }, \
 790                 }, \
 791         }
 792 #define side_arg_dynamic_s32(_val, _attr) \
 793         { \
 794                 .dynamic_type = SIDE_DYNAMIC_TYPE_S32, \
 795                 .u = { \
 796                         .side_basic = { \
 797                                 .attr = _attr, \
 798                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 799                                 .u = { \
 800                                         .side_s32 = (_val), \
 801                                 }, \
 802                         }, \
 803                 }, \
 804         }
 805 #define side_arg_dynamic_s64(_val, _attr) \
 806         { \
 807                 .dynamic_type = SIDE_DYNAMIC_TYPE_S64, \
 808                 .u = { \
 809                         .side_basic = { \
 810                                 .attr = _attr, \
 811                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 812                                 .u = { \
 813                                         .side_s64 = (_val), \
 814                                 }, \
 815                         }, \
 816                 }, \
 817         }
 818 #define side_arg_dynamic_byte(_val, _attr) \
 819         { \
 820                 .dynamic_type = SIDE_DYNAMIC_TYPE_BYTE, \
 821                 .u = { \
 822                         .side_basic = { \
 823                                 .attr = _attr, \
 824                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 825                                 .u = { \
 826                                         .side_byte = (_val), \
 827                                 }, \
 828                         }, \
 829                 }, \
 830         }
 831
 832 #define side_arg_dynamic_float_binary16(_val, _attr) \
 833         { \
 834                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY16, \
 835                 .u = { \
 836                         .side_basic = { \
 837                                 .attr = _attr, \
 838                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 839                                 .u = { \
 840                                         .side_float_binary16 = (_val), \
 841                                 }, \
 842                         }, \
 843                 }, \
 844         }
 845 #define side_arg_dynamic_float_binary32(_val, _attr) \
 846         { \
 847                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY32, \
 848                 .u = { \
 849                         .side_basic = { \
 850                                 .attr = _attr, \
 851                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 852                                 .u = { \
 853                                         .side_float_binary32 = (_val), \
 854                                 }, \
 855                         }, \
 856                 }, \
 857         }
 858 #define side_arg_dynamic_float_binary64(_val, _attr) \
 859         { \
 860                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY64, \
 861                 .u = { \
 862                         .side_basic = { \
 863                                 .attr = _attr, \
 864                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 865                                 .u = { \
 866                                         .side_float_binary64 = (_val), \
 867                                 }, \
 868                         }, \
 869                 }, \
 870         }
 871 #define side_arg_dynamic_float_binary128(_val, _attr) \
 872         { \
 873                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY128, \
 874                 .u = { \
 875                         .side_basic = { \
 876                                 .attr = _attr, \
 877                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 878                                 .u = { \
 879                                         .side_float_binary128 = (_val), \
 880                                 }, \
 881                         }, \
 882                 }, \
 883         }
 884
 885 #define side_arg_dynamic_string(_val, _attr) \
 886         { \
 887                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRING, \
 888                 .u = { \
 889                         .side_basic = { \
 890                                 .attr = _attr, \
 891                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 892                                 .u = { \
 893                                         .string = (_val), \
 894                                 }, \
 895                         }, \
 896                 }, \
 897         }
 898
 899 #define side_arg_dynamic_vla(_vla) \
 900         { \
 901                 .dynamic_type = SIDE_DYNAMIC_TYPE_VLA, \
 902                 .u = { \
 903                         .side_dynamic_vla = (_vla), \
 904                 }, \
 905         }
 906
 907 #define side_arg_dynamic_vla_visitor(_dynamic_vla_visitor, _ctx, _attr) \
 908         { \
 909                 .dynamic_type = SIDE_DYNAMIC_TYPE_VLA_VISITOR, \
 910                 .u = { \
 911                         .side_dynamic_vla_visitor = { \
 912                                 .app_ctx = _ctx, \
 913                                 .visitor = _dynamic_vla_visitor, \
 914                                 .attr = _attr, \
 915                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 916                         }, \
 917                 }, \
 918         }
 919
 920 #define side_arg_dynamic_struct(_struct) \
 921         { \
 922                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT, \
 923                 .u = { \
 924                         .side_dynamic_struct = (_struct), \
 925                 }, \
 926         }
 927
 928 #define side_arg_dynamic_struct_visitor(_dynamic_struct_visitor, _ctx, _attr) \
 929         { \
 930                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT_VISITOR, \
 931                 .u = { \
 932                         .side_dynamic_struct_visitor = { \
 933                                 .app_ctx = _ctx, \
 934                                 .visitor = _dynamic_struct_visitor, \
 935                                 .attr = _attr, \
 936                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 937                         }, \
 938                 }, \
 939         }
 940
 941 #define side_arg_dynamic_define_vec(_identifier, _sav, _attr) \
 942         const struct side_arg_dynamic_vec _identifier##_vec[] = { _sav }; \
 943         const struct side_arg_dynamic_vec_vla _identifier = { \
 944                 .sav = _identifier##_vec, \
 945                 .attr = _attr, \
 946                 .len = SIDE_ARRAY_SIZE(_identifier##_vec), \
 947                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 948         }
 949
 950 #define side_arg_dynamic_define_struct(_identifier, _struct_fields, _attr) \
 951         const struct side_arg_dynamic_event_field _identifier##_fields[] = { _struct_fields }; \
 952         const struct side_arg_dynamic_event_struct _identifier = { \
 953                 .fields = _identifier##_fields, \
 954                 .attr = _attr, \
 955                 .len = SIDE_ARRAY_SIZE(_identifier##_fields), \
 956                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 957         }
 958
 959 #define side_arg_define_vec(_identifier, _sav) \
 960         const struct side_arg_vec _identifier##_vec[] = { _sav }; \
 961         const struct side_arg_vec_description _identifier = { \
 962                 .sav = _identifier##_vec, \
 963                 .len = SIDE_ARRAY_SIZE(_identifier##_vec), \
 964         }
 965
 966 #define side_arg_dynamic_field(_name, _elem) \
 967         { \
 968                 .field_name = _name, \
 969                 .elem = _elem, \
 970         }
 971
 972 #define side_arg_list(...)      __VA_ARGS__
 973
 974 #define side_define_enum(_identifier, _mappings, _attr) \
 975         const struct side_enum_mappings _identifier = { \
 976                 .mappings = _mappings, \
 977                 .attr = _attr, \
 978                 .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \
 979                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 980         }
 981
 982 #define side_enum_mapping_list(...) \
 983         SIDE_COMPOUND_LITERAL(const struct side_enum_mapping, __VA_ARGS__)
 984
 985 #define side_enum_mapping_range(_label, _begin, _end) \
 986         { \
 987                 .range_begin = _begin, \
 988                 .range_end = _end, \
 989                 .label = _label, \
 990         }
 991
 992 #define side_enum_mapping_value(_label, _value) \
 993         { \
 994                 .range_begin = _value, \
 995                 .range_end = _value, \
 996                 .label = _label, \
 997         }
 998
 999 #define side_define_enum_bitmap(_identifier, _mappings, _attr) \
1000         const struct side_enum_bitmap_mappings _identifier = { \
1001                 .mappings = _mappings, \
1002                 .attr = _attr, \
1003                 .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \
1004                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1005         }
1006
1007 #define side_enum_bitmap_mapping_list(...) \
1008         SIDE_COMPOUND_LITERAL(const struct side_enum_bitmap_mapping, __VA_ARGS__)
1009
1010 #define side_enum_bitmap_mapping_range(_label, _begin, _end) \
1011         { \
1012                 .range_begin = _begin, \
1013                 .range_end = _end, \
1014                 .label = _label, \
1015         }
1016
1017 #define side_enum_bitmap_mapping_value(_label, _value) \
1018         { \
1019                 .range_begin = _value, \
1020                 .range_end = _value, \
1021                 .label = _label, \
1022         }
1023
1024 #define side_event_cond(_desc) if (side_unlikely(_desc##_enabled))
1025
1026 #define side_event_call(_desc, _sav) \
1027         { \
1028                 const struct side_arg_vec side_sav[] = { _sav }; \
1029                 const struct side_arg_vec_description sav_desc = { \
1030                         .sav = side_sav, \
1031                         .len = SIDE_ARRAY_SIZE(side_sav), \
1032                 }; \
1033                 side_call(&(_desc), &sav_desc); \
1034         }
1035
1036 #define side_event(_desc, _sav) \
1037         side_event_cond(_desc) \
1038                 side_event_call(_desc, SIDE_PARAM(_sav))
1039
1040 #define side_event_call_variadic(_desc, _sav, _var_fields, _attr) \
1041         { \
1042                 const struct side_arg_vec side_sav[] = { _sav }; \
1043                 const struct side_arg_vec_description sav_desc = { \
1044                         .sav = side_sav, \
1045                         .len = SIDE_ARRAY_SIZE(side_sav), \
1046                 }; \
1047                 const struct side_arg_dynamic_event_field side_fields[] = { _var_fields }; \
1048                 const struct side_arg_dynamic_event_struct var_struct = { \
1049                         .fields = side_fields, \
1050                         .attr = _attr, \
1051                         .len = SIDE_ARRAY_SIZE(side_fields), \
1052                         .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1053                 }; \
1054                 side_call_variadic(&(_desc), &sav_desc, &var_struct); \
1055         }
1056
1057 #define side_event_variadic(_desc, _sav, _var, _attr) \
1058         side_event_cond(_desc) \
1059                 side_event_call_variadic(_desc, SIDE_PARAM(_sav), SIDE_PARAM(_var), SIDE_PARAM(_attr))
1060
1061 #define _side_define_event(_identifier, _provider, _event, _loglevel, _fields, _attr, _flags) \
1062         uint32_t _identifier##_enabled __attribute__((section("side_event_enable"))); \
1063         struct side_callbacks _identifier##_callbacks __attribute__((section("side_event_callbacks"))); \
1064         const struct side_event_description _identifier = { \
1065                 .version = 0, \
1066                 .enabled = &(_identifier##_enabled), \
1067                 .loglevel = _loglevel, \
1068                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \
1069                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1070                 .flags = (_flags), \
1071                 .provider_name = _provider, \
1072                 .event_name = _event, \
1073                 .fields = _fields, \
1074                 .attr = _attr, \
1075                 .callbacks = &(_identifier##_callbacks), \
1076         }; \
1077         const struct side_event_description *_identifier##_ptr \
1078                 __attribute__((section("side_event_description"), used)) = &(_identifier);
1079
1080 #define side_define_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1081         _side_define_event(_identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1082                         SIDE_PARAM(_attr), 0)
1083
1084 #define side_define_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1085         _side_define_event(_identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1086                         SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC)
1087
1088 #define side_declare_event(_identifier) \
1089         struct side_event_description _identifier
1090
1091 void side_call(const struct side_event_description *desc,
1092         const struct side_arg_vec_description *sav_desc);
1093 void side_call_variadic(const struct side_event_description *desc,
1094         const struct side_arg_vec_description *sav_desc,
1095         const struct side_arg_dynamic_event_struct *var_struct);
1096
1097 #endif /* _SIDE_TRACE_H */