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 #include <side/endian.h>
  16
  17 /* SIDE stands for "Static Instrumentation Dynamically Enabled" */
  18
  19 //TODO: as those structures will be ABI, we need to either consider them
  20 //fixed forever, or think of a scheme that would allow their binary
  21 //representation to be extended if need be.
  22
  23 struct side_arg_vec;
  24 struct side_arg_vec_description;
  25 struct side_arg_dynamic_vec;
  26 struct side_arg_dynamic_vec_vla;
  27 struct side_type_description;
  28 struct side_event_field;
  29 struct side_event_field_sg;
  30 struct side_tracer_visitor_ctx;
  31 struct side_tracer_dynamic_struct_visitor_ctx;
  32 struct side_tracer_dynamic_vla_visitor_ctx;
  33 struct side_event_description;
  34 struct side_arg_dynamic_event_struct;
  35 struct side_events_register_handle;
  36
  37 enum side_type {
  38         /* Basic types */
  39         SIDE_TYPE_BOOL,
  40         SIDE_TYPE_U8,
  41         SIDE_TYPE_U16,
  42         SIDE_TYPE_U32,
  43         SIDE_TYPE_U64,
  44         SIDE_TYPE_S8,
  45         SIDE_TYPE_S16,
  46         SIDE_TYPE_S32,
  47         SIDE_TYPE_S64,
  48         SIDE_TYPE_BYTE,
  49         SIDE_TYPE_POINTER32,
  50         SIDE_TYPE_POINTER64,
  51         SIDE_TYPE_FLOAT_BINARY16,
  52         SIDE_TYPE_FLOAT_BINARY32,
  53         SIDE_TYPE_FLOAT_BINARY64,
  54         SIDE_TYPE_FLOAT_BINARY128,
  55         SIDE_TYPE_STRING,
  56
  57         /* Compound types */
  58         SIDE_TYPE_STRUCT,
  59         SIDE_TYPE_STRUCT_SG,
  60         SIDE_TYPE_ARRAY,
  61         SIDE_TYPE_VLA,
  62         SIDE_TYPE_VLA_VISITOR,
  63
  64         SIDE_TYPE_ARRAY_U8,
  65         SIDE_TYPE_ARRAY_U16,
  66         SIDE_TYPE_ARRAY_U32,
  67         SIDE_TYPE_ARRAY_U64,
  68         SIDE_TYPE_ARRAY_S8,
  69         SIDE_TYPE_ARRAY_S16,
  70         SIDE_TYPE_ARRAY_S32,
  71         SIDE_TYPE_ARRAY_S64,
  72         SIDE_TYPE_ARRAY_BYTE,
  73         SIDE_TYPE_ARRAY_POINTER32,
  74         SIDE_TYPE_ARRAY_POINTER64,
  75
  76         SIDE_TYPE_VLA_U8,
  77         SIDE_TYPE_VLA_U16,
  78         SIDE_TYPE_VLA_U32,
  79         SIDE_TYPE_VLA_U64,
  80         SIDE_TYPE_VLA_S8,
  81         SIDE_TYPE_VLA_S16,
  82         SIDE_TYPE_VLA_S32,
  83         SIDE_TYPE_VLA_S64,
  84         SIDE_TYPE_VLA_BYTE,
  85         SIDE_TYPE_VLA_POINTER32,
  86         SIDE_TYPE_VLA_POINTER64,
  87
  88         /* Enumeration types */
  89         SIDE_TYPE_ENUM,
  90         SIDE_TYPE_ENUM_BITMAP,
  91
  92         /* Dynamic type */
  93         SIDE_TYPE_DYNAMIC,
  94 };
  95
  96 enum side_dynamic_type {
  97         /* Basic types */
  98         SIDE_DYNAMIC_TYPE_NULL,
  99         SIDE_DYNAMIC_TYPE_BOOL,
 100         SIDE_DYNAMIC_TYPE_U8,
 101         SIDE_DYNAMIC_TYPE_U16,
 102         SIDE_DYNAMIC_TYPE_U32,
 103         SIDE_DYNAMIC_TYPE_U64,
 104         SIDE_DYNAMIC_TYPE_S8,
 105         SIDE_DYNAMIC_TYPE_S16,
 106         SIDE_DYNAMIC_TYPE_S32,
 107         SIDE_DYNAMIC_TYPE_S64,
 108         SIDE_DYNAMIC_TYPE_BYTE,
 109         SIDE_DYNAMIC_TYPE_POINTER32,
 110         SIDE_DYNAMIC_TYPE_POINTER64,
 111         SIDE_DYNAMIC_TYPE_FLOAT_BINARY16,
 112         SIDE_DYNAMIC_TYPE_FLOAT_BINARY32,
 113         SIDE_DYNAMIC_TYPE_FLOAT_BINARY64,
 114         SIDE_DYNAMIC_TYPE_FLOAT_BINARY128,
 115         SIDE_DYNAMIC_TYPE_STRING,
 116
 117         /* Compound types */
 118         SIDE_DYNAMIC_TYPE_STRUCT,
 119         SIDE_DYNAMIC_TYPE_STRUCT_VISITOR,
 120         SIDE_DYNAMIC_TYPE_VLA,
 121         SIDE_DYNAMIC_TYPE_VLA_VISITOR,
 122 };
 123
 124 enum side_attr_type {
 125         SIDE_ATTR_TYPE_NULL,
 126         SIDE_ATTR_TYPE_BOOL,
 127         SIDE_ATTR_TYPE_U8,
 128         SIDE_ATTR_TYPE_U16,
 129         SIDE_ATTR_TYPE_U32,
 130         SIDE_ATTR_TYPE_U64,
 131         SIDE_ATTR_TYPE_S8,
 132         SIDE_ATTR_TYPE_S16,
 133         SIDE_ATTR_TYPE_S32,
 134         SIDE_ATTR_TYPE_S64,
 135         SIDE_ATTR_TYPE_POINTER32,
 136         SIDE_ATTR_TYPE_POINTER64,
 137         SIDE_ATTR_TYPE_FLOAT_BINARY16,
 138         SIDE_ATTR_TYPE_FLOAT_BINARY32,
 139         SIDE_ATTR_TYPE_FLOAT_BINARY64,
 140         SIDE_ATTR_TYPE_FLOAT_BINARY128,
 141         SIDE_ATTR_TYPE_STRING,
 142 };
 143
 144 enum side_type_sg {
 145         SIDE_TYPE_SG_UNSIGNED_INT,
 146         SIDE_TYPE_SG_SIGNED_INT,
 147 };
 148
 149 enum side_loglevel {
 150         SIDE_LOGLEVEL_EMERG = 0,
 151         SIDE_LOGLEVEL_ALERT = 1,
 152         SIDE_LOGLEVEL_CRIT = 2,
 153         SIDE_LOGLEVEL_ERR = 3,
 154         SIDE_LOGLEVEL_WARNING = 4,
 155         SIDE_LOGLEVEL_NOTICE = 5,
 156         SIDE_LOGLEVEL_INFO = 6,
 157         SIDE_LOGLEVEL_DEBUG = 7,
 158 };
 159
 160 enum side_visitor_status {
 161         SIDE_VISITOR_STATUS_OK = 0,
 162         SIDE_VISITOR_STATUS_ERROR = -1,
 163 };
 164
 165 enum side_error {
 166         SIDE_ERROR_OK = 0,
 167         SIDE_ERROR_INVAL = 1,
 168         SIDE_ERROR_EXIST = 2,
 169         SIDE_ERROR_NOMEM = 3,
 170         SIDE_ERROR_NOENT = 4,
 171         SIDE_ERROR_EXITING = 5,
 172 };
 173
 174 enum side_type_byte_order {
 175         SIDE_TYPE_BYTE_ORDER_LE = 0,
 176         SIDE_TYPE_BYTE_ORDER_BE = 1,
 177 };
 178
 179 #if (SIDE_BYTE_ORDER == SIDE_LITTLE_ENDIAN)
 180 # define SIDE_TYPE_BYTE_ORDER_HOST              SIDE_TYPE_BYTE_ORDER_LE
 181 #else
 182 # define SIDE_TYPE_BYTE_ORDER_HOST              SIDE_TYPE_BYTE_ORDER_BE
 183 #endif
 184
 185 #if (SIDE_FLOAT_WORD_ORDER == SIDE_LITTLE_ENDIAN)
 186 # define SIDE_TYPE_FLOAT_WORD_ORDER_HOST        SIDE_TYPE_BYTE_ORDER_LE
 187 #else
 188 # define SIDE_TYPE_FLOAT_WORD_ORDER_HOST        SIDE_TYPE_BYTE_ORDER_BE
 189 #endif
 190
 191 typedef enum side_visitor_status (*side_visitor)(
 192                 const struct side_tracer_visitor_ctx *tracer_ctx,
 193                 void *app_ctx);
 194 typedef enum side_visitor_status (*side_dynamic_struct_visitor)(
 195                 const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
 196                 void *app_ctx);
 197 typedef enum side_visitor_status (*side_dynamic_vla_visitor)(
 198                 const struct side_tracer_dynamic_vla_visitor_ctx *tracer_ctx,
 199                 void *app_ctx);
 200
 201 struct side_attr_value {
 202         uint32_t type;  /* enum side_attr_type */
 203         union {
 204                 uint8_t side_bool;
 205                 uint8_t side_u8;
 206                 uint16_t side_u16;
 207                 uint32_t side_u32;
 208                 uint64_t side_u64;
 209                 int8_t side_s8;
 210                 int16_t side_s16;
 211                 int32_t side_s32;
 212                 int64_t side_s64;
 213 #if __HAVE_FLOAT16
 214                 _Float16 side_float_binary16;
 215 #endif
 216 #if __HAVE_FLOAT32
 217                 _Float32 side_float_binary32;
 218 #endif
 219 #if __HAVE_FLOAT64
 220                 _Float64 side_float_binary64;
 221 #endif
 222 #if __HAVE_FLOAT128
 223                 _Float128 side_float_binary128;
 224 #endif
 225                 uint64_t string;        /* const char * */
 226         } u;
 227 };
 228
 229 /* User attributes. */
 230 struct side_attr {
 231         const char *key;
 232         const struct side_attr_value value;
 233 };
 234
 235 struct side_enum_mapping {
 236         int64_t range_begin;
 237         int64_t range_end;
 238         const char *label;
 239 };
 240
 241 struct side_enum_mappings {
 242         const struct side_enum_mapping *mappings;
 243         const struct side_attr *attr;
 244         uint32_t nr_mappings;
 245         uint32_t nr_attr;
 246 };
 247
 248 struct side_enum_bitmap_mapping {
 249         uint64_t range_begin;
 250         uint64_t range_end;
 251         const char *label;
 252 };
 253
 254 struct side_enum_bitmap_mappings {
 255         const struct side_enum_bitmap_mapping *mappings;
 256         const struct side_attr *attr;
 257         uint32_t nr_mappings;
 258         uint32_t nr_attr;
 259 };
 260
 261 struct side_type_struct {
 262         uint32_t nr_fields;
 263         uint32_t nr_attr;
 264         const struct side_event_field *fields;
 265         const struct side_attr *attr;
 266 };
 267
 268 struct side_type_sg_description {
 269         uint32_t type;  /* enum side_type_sg */
 270         union {
 271                 /* Basic types */
 272                 struct {
 273                         uint64_t integer_offset;        /* bytes */
 274                         const struct side_attr *attr;
 275                         uint32_t nr_attr;
 276                         uint32_t byte_order;            /* enum side_type_byte_order */
 277                         uint8_t integer_size_bits;      /* bits */
 278                         uint8_t offset_bits;            /* bits */
 279                         uint8_t len_bits;               /* bits */
 280                 } side_basic;
 281         } u;
 282 };
 283
 284 struct side_struct_field_sg {
 285         const char *field_name;
 286         struct side_type_sg_description side_type;
 287 };
 288
 289 /* Structure fields scatter-gather. */
 290 struct side_type_struct_sg {
 291         uint32_t nr_fields;
 292         uint32_t nr_attr;
 293         const struct side_struct_field_sg *fields_sg;
 294         const struct side_attr *attr;
 295 };
 296
 297 struct side_type_description {
 298         uint32_t type;  /* enum side_type */
 299         union {
 300                 /* Basic types */
 301                 struct {
 302                         const struct side_attr *attr;
 303                         uint32_t nr_attr;
 304                         uint32_t byte_order;    /* enum side_type_byte_order */
 305                 } side_basic;
 306
 307                 /* Compound types */
 308                 struct {
 309                         const struct side_type_description *elem_type;
 310                         const struct side_attr *attr;
 311                         uint32_t length;
 312                         uint32_t nr_attr;
 313                 } side_array;
 314                 struct {
 315                         const struct side_type_description *elem_type;
 316                         const struct side_attr *attr;
 317                         uint32_t nr_attr;
 318                 } side_vla;
 319                 struct {
 320                         const struct side_type_description *elem_type;
 321                         side_visitor visitor;
 322                         const struct side_attr *attr;
 323                         uint32_t nr_attr;
 324                 } side_vla_visitor;
 325                 const struct side_type_struct *side_struct;
 326                 const struct side_type_struct_sg *side_struct_sg;
 327
 328                 /* Enumeration types */
 329                 struct {
 330                         const struct side_enum_mappings *mappings;
 331                         const struct side_type_description *elem_type;
 332                 } side_enum;
 333                 struct {
 334                         const struct side_enum_bitmap_mappings *mappings;
 335                         const struct side_type_description *elem_type;
 336                 } side_enum_bitmap;
 337         } u;
 338 };
 339
 340 struct side_event_field {
 341         const char *field_name;
 342         struct side_type_description side_type;
 343 };
 344
 345 enum side_event_flags {
 346         SIDE_EVENT_FLAG_VARIADIC = (1 << 0),
 347 };
 348
 349 struct side_callback {
 350         union {
 351                 void (*call)(const struct side_event_description *desc,
 352                         const struct side_arg_vec_description *sav_desc,
 353                         void *priv);
 354                 void (*call_variadic)(const struct side_event_description *desc,
 355                         const struct side_arg_vec_description *sav_desc,
 356                         const struct side_arg_dynamic_event_struct *var_struct,
 357                         void *priv);
 358         } u;
 359         void *priv;
 360 };
 361
 362 struct side_event_description {
 363         uintptr_t *enabled;
 364         const char *provider_name;
 365         const char *event_name;
 366         const struct side_event_field *fields;
 367         const struct side_attr *attr;
 368         const struct side_callback *callbacks;
 369         uint64_t flags;
 370         uint32_t version;
 371         uint32_t loglevel;      /* enum side_loglevel */
 372         uint32_t nr_fields;
 373         uint32_t nr_attr;
 374         uint32_t nr_callbacks;
 375 };
 376
 377 struct side_arg_dynamic_vec {
 378         uint32_t dynamic_type;  /* enum side_dynamic_type */
 379         union {
 380                 /* Basic types */
 381                 struct {
 382                         const struct side_attr *attr;
 383                         uint32_t nr_attr;
 384                         uint32_t byte_order;    /* enum side_type_byte_order */
 385                         union {
 386                                 uint8_t side_bool;
 387                                 uint8_t side_u8;
 388                                 uint16_t side_u16;
 389                                 uint32_t side_u32;
 390                                 uint64_t side_u64;
 391                                 int8_t side_s8;
 392                                 int16_t side_s16;
 393                                 int32_t side_s32;
 394                                 int64_t side_s64;
 395                                 uint8_t side_byte;
 396 #if __HAVE_FLOAT16
 397                                 _Float16 side_float_binary16;
 398 #endif
 399 #if __HAVE_FLOAT32
 400                                 _Float32 side_float_binary32;
 401 #endif
 402 #if __HAVE_FLOAT64
 403                                 _Float64 side_float_binary64;
 404 #endif
 405 #if __HAVE_FLOAT128
 406                                 _Float128 side_float_binary128;
 407 #endif
 408                                 uint64_t string;        /* const char * */
 409                         } u;
 410                 } side_basic;
 411
 412                 /* Compound types */
 413                 const struct side_arg_dynamic_event_struct *side_dynamic_struct;
 414                 struct {
 415                         void *app_ctx;
 416                         side_dynamic_struct_visitor visitor;
 417                         const struct side_attr *attr;
 418                         uint32_t nr_attr;
 419                 } side_dynamic_struct_visitor;
 420                 const struct side_arg_dynamic_vec_vla *side_dynamic_vla;
 421                 struct {
 422                         void *app_ctx;
 423                         side_dynamic_vla_visitor visitor;
 424                         const struct side_attr *attr;
 425                         uint32_t nr_attr;
 426                 } side_dynamic_vla_visitor;
 427         } u;
 428 };
 429
 430 struct side_arg_dynamic_vec_vla {
 431         const struct side_arg_dynamic_vec *sav;
 432         const struct side_attr *attr;
 433         uint32_t len;
 434         uint32_t nr_attr;
 435 };
 436
 437 struct side_arg_dynamic_event_field {
 438         const char *field_name;
 439         const struct side_arg_dynamic_vec elem;
 440 };
 441
 442 struct side_arg_dynamic_event_struct {
 443         const struct side_arg_dynamic_event_field *fields;
 444         const struct side_attr *attr;
 445         uint32_t len;
 446         uint32_t nr_attr;
 447 };
 448
 449 struct side_arg_vec {
 450         enum side_type type;
 451         union {
 452                 /* Basic types */
 453                 uint8_t side_bool;
 454                 uint8_t side_u8;
 455                 uint16_t side_u16;
 456                 uint32_t side_u32;
 457                 uint64_t side_u64;
 458                 int8_t side_s8;
 459                 int16_t side_s16;
 460                 int32_t side_s32;
 461                 int64_t side_s64;
 462                 uint8_t side_byte;
 463 #if __HAVE_FLOAT16
 464                 _Float16 side_float_binary16;
 465 #endif
 466 #if __HAVE_FLOAT32
 467                 _Float32 side_float_binary32;
 468 #endif
 469 #if __HAVE_FLOAT64
 470                 _Float64 side_float_binary64;
 471 #endif
 472 #if __HAVE_FLOAT128
 473                 _Float128 side_float_binary128;
 474 #endif
 475                 uint64_t string;        /* const char * */
 476
 477                 /* Compound types */
 478                 const struct side_arg_vec_description *side_struct;
 479                 const struct side_arg_vec_description *side_array;
 480                 const struct side_arg_vec_description *side_vla;
 481                 void *side_vla_app_visitor_ctx;
 482                 void *side_array_fixint;
 483                 struct {
 484                         void *p;
 485                         uint32_t length;
 486                 } side_vla_fixint;
 487                 void *side_struct_sg_ptr;
 488
 489                 /* Dynamic type */
 490                 struct side_arg_dynamic_vec dynamic;
 491         } u;
 492 };
 493
 494 struct side_arg_vec_description {
 495         const struct side_arg_vec *sav;
 496         uint32_t len;
 497 };
 498
 499 /* The visitor pattern is a double-dispatch visitor. */
 500 struct side_tracer_visitor_ctx {
 501         enum side_visitor_status (*write_elem)(
 502                         const struct side_tracer_visitor_ctx *tracer_ctx,
 503                         const struct side_arg_vec *elem);
 504         void *priv;             /* Private tracer context. */
 505 };
 506
 507 struct side_tracer_dynamic_struct_visitor_ctx {
 508         enum side_visitor_status (*write_field)(
 509                         const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
 510                         const struct side_arg_dynamic_event_field *dynamic_field);
 511         void *priv;             /* Private tracer context. */
 512 };
 513
 514 struct side_tracer_dynamic_vla_visitor_ctx {
 515         enum side_visitor_status (*write_elem)(
 516                         const struct side_tracer_dynamic_vla_visitor_ctx *tracer_ctx,
 517                         const struct side_arg_dynamic_vec *elem);
 518         void *priv;             /* Private tracer context. */
 519 };
 520
 521 /* Event and type attributes */
 522
 523 #if SIDE_BITS_PER_LONG == 64
 524 # define SIDE_TYPE_POINTER_HOST         SIDE_TYPE_POINTER64
 525 # define SIDE_TYPE_ARRAY_POINTER_HOST   SIDE_TYPE_ARRAY_POINTER64
 526 # define SIDE_TYPE_VLA_POINTER_HOST     SIDE_TYPE_VLA_POINTER64
 527 # define SIDE_DYNAMIC_TYPE_POINTER_HOST SIDE_DYNAMIC_TYPE_POINTER64
 528 # define SIDE_ATTR_TYPE_POINTER_HOST    SIDE_ATTR_TYPE_POINTER64
 529 # define SIDE_PTR_HOST                  .side_u64
 530 #else
 531 # define SIDE_TYPE_POINTER_HOST         SIDE_TYPE_POINTER32
 532 # define SIDE_TYPE_ARRAY_POINTER_HOST   SIDE_TYPE_ARRAY_POINTER32
 533 # define SIDE_TYPE_VLA_POINTER_HOST     SIDE_TYPE_VLA_POINTER32
 534 # define SIDE_DYNAMIC_TYPE_POINTER_HOST SIDE_DYNAMIC_TYPE_POINTER32
 535 # define SIDE_ATTR_TYPE_POINTER_HOST    SIDE_ATTR_TYPE_POINTER32
 536 # define SIDE_PTR_HOST                  .side_u32
 537 #endif
 538
 539 #define side_attr(_key, _value) \
 540         { \
 541                 .key = _key, \
 542                 .value = SIDE_PARAM(_value), \
 543         }
 544
 545 #define side_attr_list(...) \
 546         SIDE_COMPOUND_LITERAL(const struct side_attr, __VA_ARGS__)
 547
 548 #define side_attr_null(_val)            { .type = SIDE_ATTR_TYPE_NULL }
 549 #define side_attr_bool(_val)            { .type = SIDE_ATTR_TYPE_BOOL, .u = { .side_bool = !!(_val) } }
 550 #define side_attr_u8(_val)              { .type = SIDE_ATTR_TYPE_U8, .u = { .side_u8 = (_val) } }
 551 #define side_attr_u16(_val)             { .type = SIDE_ATTR_TYPE_U16, .u = { .side_u16 = (_val) } }
 552 #define side_attr_u32(_val)             { .type = SIDE_ATTR_TYPE_U32, .u = { .side_u32 = (_val) } }
 553 #define side_attr_u64(_val)             { .type = SIDE_ATTR_TYPE_U64, .u = { .side_u64 = (_val) } }
 554 #define side_attr_s8(_val)              { .type = SIDE_ATTR_TYPE_S8, .u = { .side_s8 = (_val) } }
 555 #define side_attr_s16(_val)             { .type = SIDE_ATTR_TYPE_S16, .u = { .side_s16 = (_val) } }
 556 #define side_attr_s32(_val)             { .type = SIDE_ATTR_TYPE_S32, .u = { .side_s32 = (_val) } }
 557 #define side_attr_s64(_val)             { .type = SIDE_ATTR_TYPE_S64, .u = { .side_s64 = (_val) } }
 558 #define side_attr_pointer(_val)         { .type = SIDE_ATTR_TYPE_POINTER_HOST, .u = { SIDE_PTR_HOST = (uintptr_t) (_val) } }
 559 #define side_attr_float_binary16(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY16, .u = { .side_float_binary16 = (_val) } }
 560 #define side_attr_float_binary32(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY32, .u = { .side_float_binary32 = (_val) } }
 561 #define side_attr_float_binary64(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY64, .u = { .side_float_binary64 = (_val) } }
 562 #define side_attr_float_binary128(_val) { .type = SIDE_ATTR_TYPE_FLOAT_BINARY128, .u = { .side_float_binary128 = (_val) } }
 563 #define side_attr_string(_val)          { .type = SIDE_ATTR_TYPE_STRING, .u = { .string = (uintptr_t) (_val) } }
 564
 565 /* Static field definition */
 566
 567 #define _side_type_basic(_type, _byte_order, _attr) \
 568         { \
 569                 .type = _type, \
 570                 .u = { \
 571                         .side_basic = { \
 572                                 .attr = _attr, \
 573                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 574                                 .byte_order = _byte_order, \
 575                         }, \
 576                 }, \
 577         }
 578
 579 #define _side_field(_name, _type) \
 580         { \
 581                 .field_name = _name, \
 582                 .side_type = _type, \
 583         }
 584
 585 /* Host endian */
 586 #define side_type_bool(_attr)                           _side_type_basic(SIDE_TYPE_BOOL, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 587 #define side_type_u8(_attr)                             _side_type_basic(SIDE_TYPE_U8, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 588 #define side_type_u16(_attr)                            _side_type_basic(SIDE_TYPE_U16, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 589 #define side_type_u32(_attr)                            _side_type_basic(SIDE_TYPE_U32, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 590 #define side_type_u64(_attr)                            _side_type_basic(SIDE_TYPE_U64, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 591 #define side_type_s8(_attr)                             _side_type_basic(SIDE_TYPE_S8, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 592 #define side_type_s16(_attr)                            _side_type_basic(SIDE_TYPE_S16, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 593 #define side_type_s32(_attr)                            _side_type_basic(SIDE_TYPE_S32, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 594 #define side_type_s64(_attr)                            _side_type_basic(SIDE_TYPE_S64, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 595 #define side_type_byte(_attr)                           _side_type_basic(SIDE_TYPE_BYTE, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 596 #define side_type_pointer(_attr)                        _side_type_basic(SIDE_TYPE_POINTER_HOST, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 597 #define side_type_float_binary16(_attr)                 _side_type_basic(SIDE_TYPE_FLOAT_BINARY16, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr))
 598 #define side_type_float_binary32(_attr)                 _side_type_basic(SIDE_TYPE_FLOAT_BINARY32, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr))
 599 #define side_type_float_binary64(_attr)                 _side_type_basic(SIDE_TYPE_FLOAT_BINARY64, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr))
 600 #define side_type_float_binary128(_attr)                _side_type_basic(SIDE_TYPE_FLOAT_BINARY128, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr))
 601 #define side_type_string(_attr)                         _side_type_basic(SIDE_TYPE_STRING, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 602 #define side_type_dynamic(_attr)                        _side_type_basic(SIDE_TYPE_DYNAMIC, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 603
 604 #define side_field_bool(_name, _attr)                   _side_field(_name, side_type_bool(SIDE_PARAM(_attr)))
 605 #define side_field_u8(_name, _attr)                     _side_field(_name, side_type_u8(SIDE_PARAM(_attr)))
 606 #define side_field_u16(_name, _attr)                    _side_field(_name, side_type_u16(SIDE_PARAM(_attr)))
 607 #define side_field_u32(_name, _attr)                    _side_field(_name, side_type_u32(SIDE_PARAM(_attr)))
 608 #define side_field_u64(_name, _attr)                    _side_field(_name, side_type_u64(SIDE_PARAM(_attr)))
 609 #define side_field_s8(_name, _attr)                     _side_field(_name, side_type_s8(SIDE_PARAM(_attr)))
 610 #define side_field_s16(_name, _attr)                    _side_field(_name, side_type_s16(SIDE_PARAM(_attr)))
 611 #define side_field_s32(_name, _attr)                    _side_field(_name, side_type_s32(SIDE_PARAM(_attr)))
 612 #define side_field_s64(_name, _attr)                    _side_field(_name, side_type_s64(SIDE_PARAM(_attr)))
 613 #define side_field_byte(_name, _attr)                   _side_field(_name, side_type_byte(SIDE_PARAM(_attr)))
 614 #define side_field_pointer(_name, _attr)                _side_field(_name, side_type_pointer(SIDE_PARAM(_attr)))
 615 #define side_field_float_binary16(_name, _attr)         _side_field(_name, side_type_float_binary16(SIDE_PARAM(_attr)))
 616 #define side_field_float_binary32(_name, _attr)         _side_field(_name, side_type_float_binary32(SIDE_PARAM(_attr)))
 617 #define side_field_float_binary64(_name, _attr)         _side_field(_name, side_type_float_binary64(SIDE_PARAM(_attr)))
 618 #define side_field_float_binary128(_name, _attr)        _side_field(_name, side_type_float_binary128(SIDE_PARAM(_attr)))
 619 #define side_field_string(_name, _attr)                 _side_field(_name, side_type_string(SIDE_PARAM(_attr)))
 620 #define side_field_dynamic(_name, _attr)                _side_field(_name, side_type_dynamic(SIDE_PARAM(_attr)))
 621
 622 /* Little endian */
 623 #define side_type_u16_le(_attr)                         _side_type_basic(SIDE_TYPE_U16, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
 624 #define side_type_u32_le(_attr)                         _side_type_basic(SIDE_TYPE_U32, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
 625 #define side_type_u64_le(_attr)                         _side_type_basic(SIDE_TYPE_U64, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
 626 #define side_type_s16_le(_attr)                         _side_type_basic(SIDE_TYPE_S16, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
 627 #define side_type_s32_le(_attr)                         _side_type_basic(SIDE_TYPE_S32, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
 628 #define side_type_s64_le(_attr)                         _side_type_basic(SIDE_TYPE_S64, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
 629 #define side_type_pointer_le(_attr)                     _side_type_basic(SIDE_TYPE_POINTER_HOST, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
 630 #define side_type_float_binary16_le(_attr)              _side_type_basic(SIDE_TYPE_FLOAT_BINARY16, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
 631 #define side_type_float_binary32_le(_attr)              _side_type_basic(SIDE_TYPE_FLOAT_BINARY32, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
 632 #define side_type_float_binary64_le(_attr)              _side_type_basic(SIDE_TYPE_FLOAT_BINARY64, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
 633 #define side_type_float_binary128_le(_attr)             _side_type_basic(SIDE_TYPE_FLOAT_BINARY128, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
 634
 635 #define side_field_u16_le(_name, _attr)                 _side_field(_name, side_type_u16_le(SIDE_PARAM(_attr)))
 636 #define side_field_u32_le(_name, _attr)                 _side_field(_name, side_type_u32_le(SIDE_PARAM(_attr)))
 637 #define side_field_u64_le(_name, _attr)                 _side_field(_name, side_type_u64_le(SIDE_PARAM(_attr)))
 638 #define side_field_s16_le(_name, _attr)                 _side_field(_name, side_type_s16_le(SIDE_PARAM(_attr)))
 639 #define side_field_s32_le(_name, _attr)                 _side_field(_name, side_type_s32_le(SIDE_PARAM(_attr)))
 640 #define side_field_s64_le(_name, _attr)                 _side_field(_name, side_type_s64_le(SIDE_PARAM(_attr)))
 641 #define side_field_pointer_le(_name, _attr)             _side_field(_name, side_type_pointer_le(SIDE_PARAM(_attr)))
 642 #define side_field_float_binary16_le(_name, _attr)      _side_field(_name, side_type_float_binary16_le(SIDE_PARAM(_attr)))
 643 #define side_field_float_binary32_le(_name, _attr)      _side_field(_name, side_type_float_binary32_le(SIDE_PARAM(_attr)))
 644 #define side_field_float_binary64_le(_name, _attr)      _side_field(_name, side_type_float_binary64_le(SIDE_PARAM(_attr)))
 645 #define side_field_float_binary128_le(_name, _attr)     _side_field(_name, side_type_float_binary128_le(SIDE_PARAM(_attr)))
 646
 647 /* Big endian */
 648 #define side_type_u16_be(_attr)                         _side_type_basic(SIDE_TYPE_U16, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
 649 #define side_type_u32_be(_attr)                         _side_type_basic(SIDE_TYPE_U32, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
 650 #define side_type_u64_be(_attr)                         _side_type_basic(SIDE_TYPE_U64, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
 651 #define side_type_s16_be(_attr)                         _side_type_basic(SIDE_TYPE_S16, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
 652 #define side_type_s32_be(_attr)                         _side_type_basic(SIDE_TYPE_S32, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
 653 #define side_type_s64_be(_attr)                         _side_type_basic(SIDE_TYPE_S64, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
 654 #define side_type_pointer_be(_attr)                     _side_type_basic(SIDE_TYPE_POINTER_HOST, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
 655 #define side_type_float_binary16_be(_attr)              _side_type_basic(SIDE_TYPE_FLOAT_BINARY16, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
 656 #define side_type_float_binary32_be(_attr)              _side_type_basic(SIDE_TYPE_FLOAT_BINARY32, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
 657 #define side_type_float_binary64_be(_attr)              _side_type_basic(SIDE_TYPE_FLOAT_BINARY64, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
 658 #define side_type_float_binary128_be(_attr)             _side_type_basic(SIDE_TYPE_FLOAT_BINARY128, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
 659
 660 #define side_field_u16_be(_name, _attr)                 _side_field(_name, side_type_u16_be(SIDE_PARAM(_attr)))
 661 #define side_field_u32_be(_name, _attr)                 _side_field(_name, side_type_u32_be(SIDE_PARAM(_attr)))
 662 #define side_field_u64_be(_name, _attr)                 _side_field(_name, side_type_u64_be(SIDE_PARAM(_attr)))
 663 #define side_field_s16_be(_name, _attr)                 _side_field(_name, side_type_s16_be(SIDE_PARAM(_attr)))
 664 #define side_field_s32_be(_name, _attr)                 _side_field(_name, side_type_s32_be(SIDE_PARAM(_attr)))
 665 #define side_field_s64_be(_name, _attr)                 _side_field(_name, side_type_s64_be(SIDE_PARAM(_attr)))
 666 #define side_field_pointer_be(_name, _attr)             _side_field(_name, side_type_pointer_be(SIDE_PARAM(_attr)))
 667 #define side_field_float_binary16_be(_name, _attr)      _side_field(_name, side_type_float_binary16_be(SIDE_PARAM(_attr)))
 668 #define side_field_float_binary32_be(_name, _attr)      _side_field(_name, side_type_float_binary32_be(SIDE_PARAM(_attr)))
 669 #define side_field_float_binary64_be(_name, _attr)      _side_field(_name, side_type_float_binary64_be(SIDE_PARAM(_attr)))
 670 #define side_field_float_binary128_be(_name, _attr)     _side_field(_name, side_type_float_binary128_be(SIDE_PARAM(_attr)))
 671
 672 #define side_type_enum(_mappings, _elem_type) \
 673         { \
 674                 .type = SIDE_TYPE_ENUM, \
 675                 .u = { \
 676                         .side_enum = { \
 677                                 .mappings = _mappings, \
 678                                 .elem_type = _elem_type, \
 679                         }, \
 680                 }, \
 681         }
 682 #define side_field_enum(_name, _mappings, _elem_type) \
 683         _side_field(_name, side_type_enum(SIDE_PARAM(_mappings), SIDE_PARAM(_elem_type)))
 684
 685 #define side_type_enum_bitmap(_mappings, _elem_type) \
 686         { \
 687                 .type = SIDE_TYPE_ENUM_BITMAP, \
 688                 .u = { \
 689                         .side_enum_bitmap = { \
 690                                 .mappings = _mappings, \
 691                                 .elem_type = _elem_type, \
 692                         }, \
 693                 }, \
 694         }
 695 #define side_field_enum_bitmap(_name, _mappings, _elem_type) \
 696         _side_field(_name, side_type_enum_bitmap(SIDE_PARAM(_mappings), SIDE_PARAM(_elem_type)))
 697
 698 #define side_type_struct(_struct) \
 699         { \
 700                 .type = SIDE_TYPE_STRUCT, \
 701                 .u = { \
 702                         .side_struct = _struct, \
 703                 }, \
 704         }
 705 #define side_field_struct(_name, _struct) \
 706         _side_field(_name, side_type_struct(SIDE_PARAM(_struct)))
 707
 708 #define _side_type_struct_define(_fields, _attr) \
 709         { \
 710                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \
 711                 .nr_attr  = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 712                 .fields = _fields, \
 713                 .attr = _attr, \
 714         }
 715
 716 #define side_define_struct(_identifier, _fields, _attr) \
 717         const struct side_type_struct _identifier = _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr))
 718
 719 #define side_struct_literal(_fields, _attr) \
 720         SIDE_COMPOUND_LITERAL(const struct side_type_struct, \
 721                 _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr)))
 722
 723 /* Scatter-gather struct */
 724
 725 #define _side_type_sg_integer(_type, _byte_order, _integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \
 726         { \
 727                 .type = _type, \
 728                 .u = { \
 729                         .side_basic = { \
 730                                 .attr = _attr, \
 731                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 732                                 .byte_order = _byte_order, \
 733                                 .integer_offset = _integer_offset, \
 734                                 .integer_size_bits = _integer_size_bits, \
 735                                 .offset_bits = _offset_bits, \
 736                                 .len_bits = _len_bits, \
 737                         }, \
 738                 }, \
 739         }
 740
 741 #define _side_field_sg(_name, _type) \
 742         { \
 743                 .field_name = _name, \
 744                 .side_type = _type, \
 745         }
 746
 747 #define side_type_sg_unsigned_integer(_integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \
 748         _side_type_sg_integer(SIDE_TYPE_SG_UNSIGNED_INT, SIDE_TYPE_BYTE_ORDER_HOST, \
 749                         _integer_offset, _integer_size_bits, _offset_bits, _len_bits, SIDE_PARAM(_attr))
 750 #define side_type_sg_signed_integer(_integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \
 751         _side_type_sg_integer(SIDE_TYPE_SG_SIGNED_INT, SIDE_TYPE_BYTE_ORDER_HOST, \
 752                         _integer_offset, _integer_size_bits, _offset_bits, _len_bits, SIDE_PARAM(_attr))
 753
 754 #define side_field_sg_unsigned_integer(_name, _integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \
 755         _side_field_sg(_name, side_type_sg_unsigned_integer(_integer_offset, _integer_size_bits, _offset_bits, _len_bits, SIDE_PARAM(_attr)))
 756 #define side_field_sg_signed_integer(_name, _integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \
 757         _side_field_sg(_name, side_type_sg_signed_integer(_integer_offset, _integer_size_bits, _offset_bits, _len_bits, SIDE_PARAM(_attr)))
 758
 759 #define side_type_struct_sg(_struct_sg) \
 760         { \
 761                 .type = SIDE_TYPE_STRUCT_SG, \
 762                 .u = { \
 763                         .side_struct_sg = _struct_sg, \
 764                 }, \
 765         }
 766 #define side_field_struct_sg(_name, _struct_sg) \
 767         _side_field(_name, side_type_struct_sg(SIDE_PARAM(_struct_sg)))
 768
 769 #define _side_type_struct_sg_define(_fields_sg, _attr) \
 770         { \
 771                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields_sg)), \
 772                 .nr_attr  = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 773                 .fields_sg = _fields_sg, \
 774                 .attr = _attr, \
 775         }
 776
 777 #define side_define_struct_sg(_identifier, _fields_sg, _attr) \
 778         const struct side_type_struct_sg _identifier = _side_type_struct_sg_define(SIDE_PARAM(_fields_sg), SIDE_PARAM(_attr))
 779
 780 #define side_struct_sg_literal(_fields_sg, _attr) \
 781         SIDE_COMPOUND_LITERAL(const struct side_type_struct_sg, \
 782                 _side_type_struct_sg_define(SIDE_PARAM(_fields_sg), SIDE_PARAM(_attr)))
 783
 784 #define side_type_array(_elem_type, _length, _attr) \
 785         { \
 786                 .type = SIDE_TYPE_ARRAY, \
 787                 .u = { \
 788                         .side_array = { \
 789                                 .elem_type = _elem_type, \
 790                                 .attr = _attr, \
 791                                 .length = _length, \
 792                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 793                         }, \
 794                 }, \
 795         }
 796 #define side_field_array(_name, _elem_type, _length, _attr) \
 797         _side_field(_name, side_type_array(SIDE_PARAM(_elem_type), _length, SIDE_PARAM(_attr)))
 798
 799 #define side_type_vla(_elem_type, _attr) \
 800         { \
 801                 .type = SIDE_TYPE_VLA, \
 802                 .u = { \
 803                         .side_vla = { \
 804                                 .elem_type = _elem_type, \
 805                                 .attr = _attr, \
 806                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 807                         }, \
 808                 }, \
 809         }
 810 #define side_field_vla(_name, _elem_type, _attr) \
 811         _side_field(_name, side_type_vla(SIDE_PARAM(_elem_type), SIDE_PARAM(_attr)))
 812
 813 #define side_type_vla_visitor(_elem_type, _visitor, _attr) \
 814         { \
 815                 .type = SIDE_TYPE_VLA_VISITOR, \
 816                 .u = { \
 817                         .side_vla_visitor = { \
 818                                 .elem_type = SIDE_PARAM(_elem_type), \
 819                                 .visitor = _visitor, \
 820                                 .attr = _attr, \
 821                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 822                         }, \
 823                 }, \
 824         }
 825 #define side_field_vla_visitor(_name, _elem_type, _visitor, _attr) \
 826         _side_field(_name, side_type_vla_visitor(SIDE_PARAM(_elem_type), _visitor, SIDE_PARAM(_attr)))
 827
 828 #define side_elem(...) \
 829         SIDE_COMPOUND_LITERAL(const struct side_type_description, __VA_ARGS__)
 830
 831 #define side_field_list(...) \
 832         SIDE_COMPOUND_LITERAL(const struct side_event_field, __VA_ARGS__)
 833
 834 #define side_field_sg_list(...) \
 835         SIDE_COMPOUND_LITERAL(const struct side_struct_field_sg, __VA_ARGS__)
 836
 837 /* Static field arguments */
 838
 839 #define side_arg_bool(_val)             { .type = SIDE_TYPE_BOOL, .u = { .side_bool = !!(_val) } }
 840 #define side_arg_u8(_val)               { .type = SIDE_TYPE_U8, .u = { .side_u8 = (_val) } }
 841 #define side_arg_u16(_val)              { .type = SIDE_TYPE_U16, .u = { .side_u16 = (_val) } }
 842 #define side_arg_u32(_val)              { .type = SIDE_TYPE_U32, .u = { .side_u32 = (_val) } }
 843 #define side_arg_u64(_val)              { .type = SIDE_TYPE_U64, .u = { .side_u64 = (_val) } }
 844 #define side_arg_s8(_val)               { .type = SIDE_TYPE_S8, .u = { .side_s8 = (_val) } }
 845 #define side_arg_s16(_val)              { .type = SIDE_TYPE_S16, .u = { .side_s16 = (_val) } }
 846 #define side_arg_s32(_val)              { .type = SIDE_TYPE_S32, .u = { .side_s32 = (_val) } }
 847 #define side_arg_s64(_val)              { .type = SIDE_TYPE_S64, .u = { .side_s64 = (_val) } }
 848 #define side_arg_byte(_val)             { .type = SIDE_TYPE_BYTE, .u = { .side_byte = (_val) } }
 849 #define side_arg_pointer(_val)          { .type = SIDE_TYPE_POINTER_HOST, .u = { SIDE_PTR_HOST = (uintptr_t) (_val) } }
 850 #define side_arg_enum_bitmap8(_val)     { .type = SIDE_TYPE_ENUM_BITMAP8, .u = { .side_u8 = (_val) } }
 851 #define side_arg_enum_bitmap16(_val)    { .type = SIDE_TYPE_ENUM_BITMAP16, .u = { .side_u16 = (_val) } }
 852 #define side_arg_enum_bitmap32(_val)    { .type = SIDE_TYPE_ENUM_BITMAP32, .u = { .side_u32 = (_val) } }
 853 #define side_arg_enum_bitmap64(_val)    { .type = SIDE_TYPE_ENUM_BITMAP64, .u = { .side_u64 = (_val) } }
 854 #define side_arg_enum_bitmap_array(_side_type)  { .type = SIDE_TYPE_ENUM_BITMAP_ARRAY, .u = { .side_array = (_side_type) } }
 855 #define side_arg_enum_bitmap_vla(_side_type)    { .type = SIDE_TYPE_ENUM_BITMAP_VLA, .u = { .side_vla = (_side_type) } }
 856 #define side_arg_float_binary16(_val)   { .type = SIDE_TYPE_FLOAT_BINARY16, .u = { .side_float_binary16 = (_val) } }
 857 #define side_arg_float_binary32(_val)   { .type = SIDE_TYPE_FLOAT_BINARY32, .u = { .side_float_binary32 = (_val) } }
 858 #define side_arg_float_binary64(_val)   { .type = SIDE_TYPE_FLOAT_BINARY64, .u = { .side_float_binary64 = (_val) } }
 859 #define side_arg_float_binary128(_val)  { .type = SIDE_TYPE_FLOAT_BINARY128, .u = { .side_float_binary128 = (_val) } }
 860
 861 #define side_arg_string(_val)           { .type = SIDE_TYPE_STRING, .u = { .string = (uintptr_t) (_val) } }
 862 #define side_arg_struct(_side_type)     { .type = SIDE_TYPE_STRUCT, .u = { .side_struct = (_side_type) } }
 863 #define side_arg_struct_sg(_ptr)        { .type = SIDE_TYPE_STRUCT_SG, .u = { .side_struct_sg_ptr = (_ptr) } }
 864 #define side_arg_array(_side_type)      { .type = SIDE_TYPE_ARRAY, .u = { .side_array = (_side_type) } }
 865 #define side_arg_vla(_side_type)        { .type = SIDE_TYPE_VLA, .u = { .side_vla = (_side_type) } }
 866 #define side_arg_vla_visitor(_ctx)      { .type = SIDE_TYPE_VLA_VISITOR, .u = { .side_vla_app_visitor_ctx = (_ctx) } }
 867
 868 #define side_arg_array_u8(_ptr)         { .type = SIDE_TYPE_ARRAY_U8, .u = { .side_array_fixint = (_ptr) } }
 869 #define side_arg_array_u16(_ptr)        { .type = SIDE_TYPE_ARRAY_U16, .u = { .side_array_fixint = (_ptr) } }
 870 #define side_arg_array_u32(_ptr)        { .type = SIDE_TYPE_ARRAY_U32, .u = { .side_array_fixint = (_ptr) } }
 871 #define side_arg_array_u64(_ptr)        { .type = SIDE_TYPE_ARRAY_U64, .u = { .side_array_fixint = (_ptr) } }
 872 #define side_arg_array_s8(_ptr)         { .type = SIDE_TYPE_ARRAY_S8, .u = { .side_array_fixint = (_ptr) } }
 873 #define side_arg_array_s16(_ptr)        { .type = SIDE_TYPE_ARRAY_S16, .u = { .side_array_fixint  = (_ptr) } }
 874 #define side_arg_array_s32(_ptr)        { .type = SIDE_TYPE_ARRAY_S32, .u = { .side_array_fixint = (_ptr) } }
 875 #define side_arg_array_s64(_ptr)        { .type = SIDE_TYPE_ARRAY_S64, .u = { .side_array_fixint = (_ptr) } }
 876 #define side_arg_array_byte(_ptr)       { .type = SIDE_TYPE_ARRAY_BYTE, .u = { .side_array_fixint = (_ptr) } }
 877 #define side_arg_array_pointer(_ptr)    { .type = SIDE_TYPE_ARRAY_POINTER_HOST, .u = { .side_array_fixint = (_ptr) } }
 878
 879 #define side_arg_vla_u8(_ptr, _length)  { .type = SIDE_TYPE_VLA_U8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } }
 880 #define side_arg_vla_u16(_ptr, _length) { .type = SIDE_TYPE_VLA_U16, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 881 #define side_arg_vla_u32(_ptr, _length) { .type = SIDE_TYPE_VLA_U32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 882 #define side_arg_vla_u64(_ptr, _length) { .type = SIDE_TYPE_VLA_U64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 883 #define side_arg_vla_s8(_ptr, _length)  { .type = SIDE_TYPE_VLA_S8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 884 #define side_arg_vla_s16(_ptr, _length) { .type = SIDE_TYPE_VLA_S16, .u = { .side_vla_fixint  = { .p = (_ptr), .length = (_length) } } }
 885 #define side_arg_vla_s32(_ptr, _length) { .type = SIDE_TYPE_VLA_S32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 886 #define side_arg_vla_s64(_ptr, _length) { .type = SIDE_TYPE_VLA_S64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 887 #define side_arg_vla_byte(_ptr, _length) { .type = SIDE_TYPE_VLA_BYTE, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 888 #define side_arg_vla_pointer(_ptr, _length) { .type = SIDE_TYPE_VLA_POINTER_HOST, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 889
 890 #define side_arg_dynamic(_dynamic_arg_type) \
 891         { \
 892                 .type = SIDE_TYPE_DYNAMIC, \
 893                 .u = { \
 894                         .dynamic = _dynamic_arg_type, \
 895                 }, \
 896         }
 897
 898 /* Dynamic field arguments */
 899
 900 #define side_arg_dynamic_null(_attr) \
 901         { \
 902                 .dynamic_type = SIDE_DYNAMIC_TYPE_NULL, \
 903                 .u = { \
 904                         .side_basic = { \
 905                                 .attr = _attr, \
 906                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 907                                 .byte_order = SIDE_TYPE_BYTE_ORDER_HOST, \
 908                         }, \
 909                 }, \
 910         }
 911
 912 #define side_arg_dynamic_bool(_val, _attr) \
 913         { \
 914                 .dynamic_type = SIDE_DYNAMIC_TYPE_BOOL, \
 915                 .u = { \
 916                         .side_basic = { \
 917                                 .attr = _attr, \
 918                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 919                                 .byte_order = SIDE_TYPE_BYTE_ORDER_HOST, \
 920                                 .u = { \
 921                                         .side_bool = !!(_val), \
 922                                 }, \
 923                         }, \
 924                 }, \
 925         }
 926
 927 #define side_arg_dynamic_u8(_val, _attr) \
 928         { \
 929                 .dynamic_type = SIDE_DYNAMIC_TYPE_U8, \
 930                 .u = { \
 931                         .side_basic = { \
 932                                 .attr = _attr, \
 933                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 934                                 .byte_order = SIDE_TYPE_BYTE_ORDER_HOST, \
 935                                 .u = { \
 936                                         .side_u8 = (_val), \
 937                                 }, \
 938                         }, \
 939                 }, \
 940         }
 941 #define side_arg_dynamic_s8(_val, _attr) \
 942         { \
 943                 .dynamic_type = SIDE_DYNAMIC_TYPE_S8, \
 944                 .u = { \
 945                         .side_basic = { \
 946                                 .attr = _attr, \
 947                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 948                                 .byte_order = SIDE_TYPE_BYTE_ORDER_HOST, \
 949                                 .u = { \
 950                                         .side_s8 = (_val), \
 951                                 }, \
 952                         }, \
 953                 }, \
 954         }
 955 #define side_arg_dynamic_byte(_val, _attr) \
 956         { \
 957                 .dynamic_type = SIDE_DYNAMIC_TYPE_BYTE, \
 958                 .u = { \
 959                         .side_basic = { \
 960                                 .attr = _attr, \
 961                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 962                                 .byte_order = SIDE_TYPE_BYTE_ORDER_HOST, \
 963                                 .u = { \
 964                                         .side_byte = (_val), \
 965                                 }, \
 966                         }, \
 967                 }, \
 968         }
 969 #define side_arg_dynamic_string(_val, _attr) \
 970         { \
 971                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRING, \
 972                 .u = { \
 973                         .side_basic = { \
 974                                 .attr = _attr, \
 975                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 976                                 .byte_order = SIDE_TYPE_BYTE_ORDER_HOST, \
 977                                 .u = { \
 978                                         .string = (uintptr_t) (_val), \
 979                                 }, \
 980                         }, \
 981                 }, \
 982         }
 983
 984 #define _side_arg_dynamic_u16(_val, _byte_order, _attr) \
 985         { \
 986                 .dynamic_type = SIDE_DYNAMIC_TYPE_U16, \
 987                 .u = { \
 988                         .side_basic = { \
 989                                 .attr = _attr, \
 990                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 991                                 .byte_order = _byte_order, \
 992                                 .u = { \
 993                                         .side_u16 = (_val), \
 994                                 }, \
 995                         }, \
 996                 }, \
 997         }
 998 #define _side_arg_dynamic_u32(_val, _byte_order, _attr) \
 999         { \
1000                 .dynamic_type = SIDE_DYNAMIC_TYPE_U32, \
1001                 .u = { \
1002                         .side_basic = { \
1003                                 .attr = _attr, \
1004                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1005                                 .byte_order = _byte_order, \
1006                                 .u = { \
1007                                         .side_u32 = (_val), \
1008                                 }, \
1009                         }, \
1010                 }, \
1011         }
1012 #define _side_arg_dynamic_u64(_val, _byte_order, _attr) \
1013         { \
1014                 .dynamic_type = SIDE_DYNAMIC_TYPE_U64, \
1015                 .u = { \
1016                         .side_basic = { \
1017                                 .attr = _attr, \
1018                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1019                                 .byte_order = _byte_order, \
1020                                 .u = { \
1021                                         .side_u64 = (_val), \
1022                                 }, \
1023                         }, \
1024                 }, \
1025         }
1026
1027 #define _side_arg_dynamic_s16(_val, _byte_order, _attr) \
1028         { \
1029                 .dynamic_type = SIDE_DYNAMIC_TYPE_S16, \
1030                 .u = { \
1031                         .side_basic = { \
1032                                 .attr = _attr, \
1033                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1034                                 .byte_order = _byte_order, \
1035                                 .u = { \
1036                                         .side_s16 = (_val), \
1037                                 }, \
1038                         }, \
1039                 }, \
1040         }
1041 #define _side_arg_dynamic_s32(_val, _byte_order, _attr) \
1042         { \
1043                 .dynamic_type = SIDE_DYNAMIC_TYPE_S32, \
1044                 .u = { \
1045                         .side_basic = { \
1046                                 .attr = _attr, \
1047                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1048                                 .byte_order = _byte_order, \
1049                                 .u = { \
1050                                         .side_s32 = (_val), \
1051                                 }, \
1052                         }, \
1053                 }, \
1054         }
1055 #define _side_arg_dynamic_s64(_val, _byte_order, _attr) \
1056         { \
1057                 .dynamic_type = SIDE_DYNAMIC_TYPE_S64, \
1058                 .u = { \
1059                         .side_basic = { \
1060                                 .attr = _attr, \
1061                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1062                                 .byte_order = _byte_order, \
1063                                 .u = { \
1064                                         .side_s64 = (_val), \
1065                                 }, \
1066                         }, \
1067                 }, \
1068         }
1069 #define _side_arg_dynamic_pointer(_val, _byte_order, _attr) \
1070         { \
1071                 .dynamic_type = SIDE_DYNAMIC_TYPE_POINTER_HOST, \
1072                 .u = { \
1073                         .side_basic = { \
1074                                 .attr = _attr, \
1075                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1076                                 .byte_order = _byte_order, \
1077                                 .u = { \
1078                                         SIDE_PTR_HOST = (uintptr_t) (_val), \
1079                                 }, \
1080                         }, \
1081                 }, \
1082         }
1083 #define _side_arg_dynamic_float_binary16(_val, _byte_order, _attr) \
1084         { \
1085                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY16, \
1086                 .u = { \
1087                         .side_basic = { \
1088                                 .attr = _attr, \
1089                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1090                                 .byte_order = _byte_order, \
1091                                 .u = { \
1092                                         .side_float_binary16 = (_val), \
1093                                 }, \
1094                         }, \
1095                 }, \
1096         }
1097 #define _side_arg_dynamic_float_binary32(_val, _byte_order, _attr) \
1098         { \
1099                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY32, \
1100                 .u = { \
1101                         .side_basic = { \
1102                                 .attr = _attr, \
1103                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1104                                 .byte_order = _byte_order, \
1105                                 .u = { \
1106                                         .side_float_binary32 = (_val), \
1107                                 }, \
1108                         }, \
1109                 }, \
1110         }
1111 #define _side_arg_dynamic_float_binary64(_val, _byte_order, _attr) \
1112         { \
1113                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY64, \
1114                 .u = { \
1115                         .side_basic = { \
1116                                 .attr = _attr, \
1117                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1118                                 .byte_order = _byte_order, \
1119                                 .u = { \
1120                                         .side_float_binary64 = (_val), \
1121                                 }, \
1122                         }, \
1123                 }, \
1124         }
1125 #define _side_arg_dynamic_float_binary128(_val, _byte_order, _attr) \
1126         { \
1127                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY128, \
1128                 .u = { \
1129                         .side_basic = { \
1130                                 .attr = _attr, \
1131                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1132                                 .byte_order = _byte_order, \
1133                                 .u = { \
1134                                         .side_float_binary128 = (_val), \
1135                                 }, \
1136                         }, \
1137                 }, \
1138         }
1139
1140 /* Host endian */
1141 #define side_arg_dynamic_u16(_val, _attr)               _side_arg_dynamic_u16(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1142 #define side_arg_dynamic_u32(_val, _attr)               _side_arg_dynamic_u32(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1143 #define side_arg_dynamic_u64(_val, _attr)               _side_arg_dynamic_u64(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1144 #define side_arg_dynamic_s16(_val, _attr)               _side_arg_dynamic_s16(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1145 #define side_arg_dynamic_s32(_val, _attr)               _side_arg_dynamic_s32(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1146 #define side_arg_dynamic_s64(_val, _attr)               _side_arg_dynamic_s64(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1147 #define side_arg_dynamic_pointer(_val, _attr)           _side_arg_dynamic_pointer(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1148 #define side_arg_dynamic_float_binary16(_val, _attr)    _side_arg_dynamic_float_binary16(_val, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr))
1149 #define side_arg_dynamic_float_binary32(_val, _attr)    _side_arg_dynamic_float_binary32(_val, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr))
1150 #define side_arg_dynamic_float_binary64(_val, _attr)    _side_arg_dynamic_float_binary64(_val, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr))
1151 #define side_arg_dynamic_float_binary128(_val, _attr)   _side_arg_dynamic_float_binary128(_val, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr))
1152
1153 /* Little endian */
1154 #define side_arg_dynamic_u16_le(_val, _attr)                    _side_arg_dynamic_u16(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1155 #define side_arg_dynamic_u32_le(_val, _attr)                    _side_arg_dynamic_u32(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1156 #define side_arg_dynamic_u64_le(_val, _attr)                    _side_arg_dynamic_u64(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1157 #define side_arg_dynamic_s16_le(_val, _attr)                    _side_arg_dynamic_s16(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1158 #define side_arg_dynamic_s32_le(_val, _attr)                    _side_arg_dynamic_s32(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1159 #define side_arg_dynamic_s64_le(_val, _attr)                    _side_arg_dynamic_s64(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1160 #define side_arg_dynamic_pointer_le(_val, _attr)                _side_arg_dynamic_pointer(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1161 #define side_arg_dynamic_float_binary16_le(_val, _attr)         _side_arg_dynamic_float_binary16(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1162 #define side_arg_dynamic_float_binary32_le(_val, _attr)         _side_arg_dynamic_float_binary32(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1163 #define side_arg_dynamic_float_binary64_le(_val, _attr)         _side_arg_dynamic_float_binary64(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1164 #define side_arg_dynamic_float_binary128_le(_val, _attr)        _side_arg_dynamic_float_binary128(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1165
1166 /* Big endian */
1167 #define side_arg_dynamic_u16_be(_val, _attr)                    _side_arg_dynamic_u16(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1168 #define side_arg_dynamic_u32_be(_val, _attr)                    _side_arg_dynamic_u32(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1169 #define side_arg_dynamic_u64_be(_val, _attr)                    _side_arg_dynamic_u64(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1170 #define side_arg_dynamic_s16_be(_val, _attr)                    _side_arg_dynamic_s16(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1171 #define side_arg_dynamic_s32_be(_val, _attr)                    _side_arg_dynamic_s32(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1172 #define side_arg_dynamic_s64_be(_val, _attr)                    _side_arg_dynamic_s64(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1173 #define side_arg_dynamic_pointer_be(_val, _attr)                _side_arg_dynamic_pointer(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1174 #define side_arg_dynamic_float_binary16_be(_val, _attr)         _side_arg_dynamic_float_binary16(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1175 #define side_arg_dynamic_float_binary32_be(_val, _attr)         _side_arg_dynamic_float_binary32(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1176 #define side_arg_dynamic_float_binary64_be(_val, _attr)         _side_arg_dynamic_float_binary64(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1177 #define side_arg_dynamic_float_binary128_be(_val, _attr)        _side_arg_dynamic_float_binary128(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1178
1179 #define side_arg_dynamic_vla(_vla) \
1180         { \
1181                 .dynamic_type = SIDE_DYNAMIC_TYPE_VLA, \
1182                 .u = { \
1183                         .side_dynamic_vla = (_vla), \
1184                 }, \
1185         }
1186
1187 #define side_arg_dynamic_vla_visitor(_dynamic_vla_visitor, _ctx, _attr) \
1188         { \
1189                 .dynamic_type = SIDE_DYNAMIC_TYPE_VLA_VISITOR, \
1190                 .u = { \
1191                         .side_dynamic_vla_visitor = { \
1192                                 .app_ctx = _ctx, \
1193                                 .visitor = _dynamic_vla_visitor, \
1194                                 .attr = _attr, \
1195                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1196                         }, \
1197                 }, \
1198         }
1199
1200 #define side_arg_dynamic_struct(_struct) \
1201         { \
1202                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT, \
1203                 .u = { \
1204                         .side_dynamic_struct = (_struct), \
1205                 }, \
1206         }
1207
1208 #define side_arg_dynamic_struct_visitor(_dynamic_struct_visitor, _ctx, _attr) \
1209         { \
1210                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT_VISITOR, \
1211                 .u = { \
1212                         .side_dynamic_struct_visitor = { \
1213                                 .app_ctx = _ctx, \
1214                                 .visitor = _dynamic_struct_visitor, \
1215                                 .attr = _attr, \
1216                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1217                         }, \
1218                 }, \
1219         }
1220
1221 #define side_arg_dynamic_define_vec(_identifier, _sav, _attr) \
1222         const struct side_arg_dynamic_vec _identifier##_vec[] = { _sav }; \
1223         const struct side_arg_dynamic_vec_vla _identifier = { \
1224                 .sav = _identifier##_vec, \
1225                 .attr = _attr, \
1226                 .len = SIDE_ARRAY_SIZE(_identifier##_vec), \
1227                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1228         }
1229
1230 #define side_arg_dynamic_define_struct(_identifier, _struct_fields, _attr) \
1231         const struct side_arg_dynamic_event_field _identifier##_fields[] = { _struct_fields }; \
1232         const struct side_arg_dynamic_event_struct _identifier = { \
1233                 .fields = _identifier##_fields, \
1234                 .attr = _attr, \
1235                 .len = SIDE_ARRAY_SIZE(_identifier##_fields), \
1236                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1237         }
1238
1239 #define side_arg_define_vec(_identifier, _sav) \
1240         const struct side_arg_vec _identifier##_vec[] = { _sav }; \
1241         const struct side_arg_vec_description _identifier = { \
1242                 .sav = _identifier##_vec, \
1243                 .len = SIDE_ARRAY_SIZE(_identifier##_vec), \
1244         }
1245
1246 #define side_arg_dynamic_field(_name, _elem) \
1247         { \
1248                 .field_name = _name, \
1249                 .elem = _elem, \
1250         }
1251
1252 #define side_arg_list(...)      __VA_ARGS__
1253
1254 #define side_define_enum(_identifier, _mappings, _attr) \
1255         const struct side_enum_mappings _identifier = { \
1256                 .mappings = _mappings, \
1257                 .attr = _attr, \
1258                 .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \
1259                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1260         }
1261
1262 #define side_enum_mapping_list(...) \
1263         SIDE_COMPOUND_LITERAL(const struct side_enum_mapping, __VA_ARGS__)
1264
1265 #define side_enum_mapping_range(_label, _begin, _end) \
1266         { \
1267                 .range_begin = _begin, \
1268                 .range_end = _end, \
1269                 .label = _label, \
1270         }
1271
1272 #define side_enum_mapping_value(_label, _value) \
1273         { \
1274                 .range_begin = _value, \
1275                 .range_end = _value, \
1276                 .label = _label, \
1277         }
1278
1279 #define side_define_enum_bitmap(_identifier, _mappings, _attr) \
1280         const struct side_enum_bitmap_mappings _identifier = { \
1281                 .mappings = _mappings, \
1282                 .attr = _attr, \
1283                 .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \
1284                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1285         }
1286
1287 #define side_enum_bitmap_mapping_list(...) \
1288         SIDE_COMPOUND_LITERAL(const struct side_enum_bitmap_mapping, __VA_ARGS__)
1289
1290 #define side_enum_bitmap_mapping_range(_label, _begin, _end) \
1291         { \
1292                 .range_begin = _begin, \
1293                 .range_end = _end, \
1294                 .label = _label, \
1295         }
1296
1297 #define side_enum_bitmap_mapping_value(_label, _value) \
1298         { \
1299                 .range_begin = _value, \
1300                 .range_end = _value, \
1301                 .label = _label, \
1302         }
1303
1304 #define side_event_cond(_identifier) \
1305         if (side_unlikely(__atomic_load_n(&side_event_enable__##_identifier, \
1306                                         __ATOMIC_RELAXED)))
1307
1308 #define side_event_call(_identifier, _sav) \
1309         { \
1310                 const struct side_arg_vec side_sav[] = { _sav }; \
1311                 const struct side_arg_vec_description sav_desc = { \
1312                         .sav = side_sav, \
1313                         .len = SIDE_ARRAY_SIZE(side_sav), \
1314                 }; \
1315                 side_call(&(_identifier), &sav_desc); \
1316         }
1317
1318 #define side_event(_identifier, _sav) \
1319         side_event_cond(_identifier) \
1320                 side_event_call(_identifier, SIDE_PARAM(_sav))
1321
1322 #define side_event_call_variadic(_identifier, _sav, _var_fields, _attr) \
1323         { \
1324                 const struct side_arg_vec side_sav[] = { _sav }; \
1325                 const struct side_arg_vec_description sav_desc = { \
1326                         .sav = side_sav, \
1327                         .len = SIDE_ARRAY_SIZE(side_sav), \
1328                 }; \
1329                 const struct side_arg_dynamic_event_field side_fields[] = { _var_fields }; \
1330                 const struct side_arg_dynamic_event_struct var_struct = { \
1331                         .fields = side_fields, \
1332                         .attr = _attr, \
1333                         .len = SIDE_ARRAY_SIZE(side_fields), \
1334                         .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1335                 }; \
1336                 side_call_variadic(&(_identifier), &sav_desc, &var_struct); \
1337         }
1338
1339 #define side_event_variadic(_identifier, _sav, _var, _attr) \
1340         side_event_cond(_identifier) \
1341                 side_event_call_variadic(_identifier, SIDE_PARAM(_sav), SIDE_PARAM(_var), SIDE_PARAM(_attr))
1342
1343 #define _side_define_event(_linkage, _identifier, _provider, _event, _loglevel, _fields, _attr, _flags) \
1344         _linkage uintptr_t side_event_enable__##_identifier __attribute__((section("side_event_enable"))); \
1345         _linkage struct side_event_description __attribute__((section("side_event_description"))) \
1346                         _identifier = { \
1347                 .enabled = &(side_event_enable__##_identifier), \
1348                 .provider_name = _provider, \
1349                 .event_name = _event, \
1350                 .fields = _fields, \
1351                 .attr = _attr, \
1352                 .callbacks = &side_empty_callback, \
1353                 .flags = (_flags), \
1354                 .version = 0, \
1355                 .loglevel = _loglevel, \
1356                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \
1357                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1358                 .nr_callbacks = 0, \
1359         }; \
1360         static const struct side_event_description *side_event_ptr__##_identifier \
1361                 __attribute__((section("side_event_description_ptr"), used)) = &(_identifier);
1362
1363 #define side_static_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1364         _side_define_event(static, _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1365                         SIDE_PARAM(_attr), 0)
1366
1367 #define side_static_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1368         _side_define_event(static, _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1369                         SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC)
1370
1371 #define side_hidden_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1372         _side_define_event(__attribute__((visibility("hidden"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1373                         SIDE_PARAM(_attr), 0)
1374
1375 #define side_hidden_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1376         _side_define_event(__attribute__((visibility("hidden"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1377                         SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC)
1378
1379 #define side_export_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1380         _side_define_event(__attribute__((visibility("default"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1381                         SIDE_PARAM(_attr), 0)
1382
1383 #define side_export_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1384         _side_define_event(__attribute__((visibility("default"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1385                         SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC)
1386
1387 #define side_declare_event(_identifier) \
1388         extern uintptr_t side_event_enable_##_identifier; \
1389         extern struct side_event_description _identifier
1390
1391 extern const struct side_callback side_empty_callback;
1392
1393 void side_call(const struct side_event_description *desc,
1394         const struct side_arg_vec_description *sav_desc);
1395 void side_call_variadic(const struct side_event_description *desc,
1396         const struct side_arg_vec_description *sav_desc,
1397         const struct side_arg_dynamic_event_struct *var_struct);
1398
1399 int side_tracer_callback_register(struct side_event_description *desc,
1400                 void (*call)(const struct side_event_description *desc,
1401                         const struct side_arg_vec_description *sav_desc,
1402                         void *priv),
1403                 void *priv);
1404 int side_tracer_callback_variadic_register(struct side_event_description *desc,
1405                 void (*call_variadic)(const struct side_event_description *desc,
1406                         const struct side_arg_vec_description *sav_desc,
1407                         const struct side_arg_dynamic_event_struct *var_struct,
1408                         void *priv),
1409                 void *priv);
1410 int side_tracer_callback_unregister(struct side_event_description *desc,
1411                 void (*call)(const struct side_event_description *desc,
1412                         const struct side_arg_vec_description *sav_desc,
1413                         void *priv),
1414                 void *priv);
1415 int side_tracer_callback_variadic_unregister(struct side_event_description *desc,
1416                 void (*call_variadic)(const struct side_event_description *desc,
1417                         const struct side_arg_vec_description *sav_desc,
1418                         const struct side_arg_dynamic_event_struct *var_struct,
1419                         void *priv),
1420                 void *priv);
1421
1422 struct side_events_register_handle *side_events_register(struct side_event_description **events, uint32_t nr_events);
1423 void side_events_unregister(struct side_events_register_handle *handle);
1424
1425 enum side_tracer_notification {
1426         SIDE_TRACER_NOTIFICATION_INSERT_EVENTS,
1427         SIDE_TRACER_NOTIFICATION_REMOVE_EVENTS,
1428 };
1429
1430 /* Callback is invoked with side library internal lock held. */
1431 struct side_tracer_handle *side_tracer_event_notification_register(
1432                 void (*cb)(enum side_tracer_notification notif,
1433                         struct side_event_description **events, uint32_t nr_events, void *priv),
1434                 void *priv);
1435 void side_tracer_event_notification_unregister(struct side_tracer_handle *handle);
1436
1437 void side_init(void);
1438 void side_exit(void);
1439
1440 /*
1441  * These weak symbols, the constructor, and destructor take care of
1442  * registering only _one_ instance of the side instrumentation per
1443  * shared-ojbect (or for the whole main program).
1444  */
1445 extern struct side_event_description * __start_side_event_description_ptr[]
1446         __attribute__((weak, visibility("hidden")));
1447 extern struct side_event_description * __stop_side_event_description_ptr[]
1448         __attribute__((weak, visibility("hidden")));
1449 int side_event_description_ptr_registered
1450         __attribute__((weak, visibility("hidden")));
1451 struct side_events_register_handle *side_events_handle
1452         __attribute__((weak, visibility("hidden")));
1453
1454 static void
1455 side_event_description_ptr_init(void)
1456         __attribute__((no_instrument_function))
1457         __attribute__((constructor));
1458 static void
1459 side_event_description_ptr_init(void)
1460 {
1461         if (side_event_description_ptr_registered++)
1462                 return;
1463         side_events_handle = side_events_register(__start_side_event_description_ptr,
1464                 __stop_side_event_description_ptr - __start_side_event_description_ptr);
1465 }
1466
1467 static void
1468 side_event_description_ptr_exit(void)
1469         __attribute__((no_instrument_function))
1470         __attribute__((destructor));
1471 static void
1472 side_event_description_ptr_exit(void)
1473 {
1474         if (--side_event_description_ptr_registered)
1475                 return;
1476         side_events_unregister(side_events_handle);
1477         side_events_handle = NULL;
1478 }
1479
1480 #endif /* _SIDE_TRACE_H */