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 union side_integer_value {
 202         uint8_t side_u8;
 203         uint16_t side_u16;
 204         uint32_t side_u32;
 205         uint64_t side_u64;
 206         int8_t side_s8;
 207         int16_t side_s16;
 208         int32_t side_s32;
 209         int64_t side_s64;
 210 };
 211
 212 union side_float_value {
 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 };
 226
 227 struct side_attr_value {
 228         uint32_t type;  /* enum side_attr_type */
 229         union {
 230                 union side_integer_value integer_value;
 231                 union side_float_value float_value;
 232                 uint8_t side_bool;
 233                 uint64_t string;        /* const char * */
 234         } u;
 235 };
 236
 237 /* User attributes. */
 238 struct side_attr {
 239         const char *key;
 240         const struct side_attr_value value;
 241 };
 242
 243 struct side_enum_mapping {
 244         int64_t range_begin;
 245         int64_t range_end;
 246         const char *label;
 247 };
 248
 249 struct side_enum_mappings {
 250         const struct side_enum_mapping *mappings;
 251         const struct side_attr *attr;
 252         uint32_t nr_mappings;
 253         uint32_t nr_attr;
 254 };
 255
 256 struct side_enum_bitmap_mapping {
 257         uint64_t range_begin;
 258         uint64_t range_end;
 259         const char *label;
 260 };
 261
 262 struct side_enum_bitmap_mappings {
 263         const struct side_enum_bitmap_mapping *mappings;
 264         const struct side_attr *attr;
 265         uint32_t nr_mappings;
 266         uint32_t nr_attr;
 267 };
 268
 269 struct side_type_struct {
 270         uint32_t nr_fields;
 271         uint32_t nr_attr;
 272         const struct side_event_field *fields;
 273         const struct side_attr *attr;
 274 };
 275
 276 struct side_type_sg_description {
 277         uint32_t type;  /* enum side_type_sg */
 278         union {
 279                 /* Basic types */
 280                 struct {
 281                         uint64_t integer_offset;        /* bytes */
 282                         const struct side_attr *attr;
 283                         uint32_t nr_attr;
 284                         uint32_t byte_order;            /* enum side_type_byte_order */
 285                         uint8_t integer_size_bits;      /* bits */
 286                         uint8_t offset_bits;            /* bits */
 287                         uint8_t len_bits;               /* bits */
 288                 } side_basic;
 289         } u;
 290 };
 291
 292 struct side_struct_field_sg {
 293         const char *field_name;
 294         struct side_type_sg_description side_type;
 295 };
 296
 297 /* Structure fields scatter-gather. */
 298 struct side_type_struct_sg {
 299         uint32_t nr_fields;
 300         uint32_t nr_attr;
 301         const struct side_struct_field_sg *fields_sg;
 302         const struct side_attr *attr;
 303 };
 304
 305 struct side_type_integer {
 306         const struct side_attr *attr;
 307         uint32_t nr_attr;
 308         uint16_t integer_size_bits;     /* bits */
 309         uint16_t len_bits;              /* bits */
 310         uint8_t signedness;             /* true/false */
 311         uint8_t byte_order;             /* enum side_type_byte_order */
 312 };
 313
 314 struct side_type_float {
 315         const struct side_attr *attr;
 316         uint32_t nr_attr;
 317         uint32_t byte_order;            /* enum side_type_byte_order */
 318         uint16_t float_size_bits;       /* bits */
 319 };
 320
 321 struct side_type_description {
 322         uint32_t type;  /* enum side_type */
 323         union {
 324                 /* Basic types */
 325                 struct {
 326                         const struct side_attr *attr;
 327                         uint32_t nr_attr;
 328                         uint32_t byte_order;            /* enum side_type_byte_order */
 329                 } side_basic;
 330
 331                 struct side_type_integer side_integer;
 332                 struct side_type_float side_float;
 333
 334                 /* Compound types */
 335                 struct {
 336                         const struct side_type_description *elem_type;
 337                         const struct side_attr *attr;
 338                         uint32_t length;
 339                         uint32_t nr_attr;
 340                 } side_array;
 341                 struct {
 342                         const struct side_type_description *elem_type;
 343                         const struct side_attr *attr;
 344                         uint32_t nr_attr;
 345                 } side_vla;
 346                 struct {
 347                         const struct side_type_description *elem_type;
 348                         side_visitor visitor;
 349                         const struct side_attr *attr;
 350                         uint32_t nr_attr;
 351                 } side_vla_visitor;
 352                 const struct side_type_struct *side_struct;
 353                 const struct side_type_struct_sg *side_struct_sg;
 354
 355                 /* Enumeration types */
 356                 struct {
 357                         const struct side_enum_mappings *mappings;
 358                         const struct side_type_description *elem_type;
 359                 } side_enum;
 360                 struct {
 361                         const struct side_enum_bitmap_mappings *mappings;
 362                         const struct side_type_description *elem_type;
 363                 } side_enum_bitmap;
 364         } u;
 365 };
 366
 367 struct side_event_field {
 368         const char *field_name;
 369         struct side_type_description side_type;
 370 };
 371
 372 enum side_event_flags {
 373         SIDE_EVENT_FLAG_VARIADIC = (1 << 0),
 374 };
 375
 376 struct side_callback {
 377         union {
 378                 void (*call)(const struct side_event_description *desc,
 379                         const struct side_arg_vec_description *sav_desc,
 380                         void *priv);
 381                 void (*call_variadic)(const struct side_event_description *desc,
 382                         const struct side_arg_vec_description *sav_desc,
 383                         const struct side_arg_dynamic_event_struct *var_struct,
 384                         void *priv);
 385         } u;
 386         void *priv;
 387 };
 388
 389 struct side_event_description {
 390         uintptr_t *enabled;
 391         const char *provider_name;
 392         const char *event_name;
 393         const struct side_event_field *fields;
 394         const struct side_attr *attr;
 395         const struct side_callback *callbacks;
 396         uint64_t flags;
 397         uint32_t version;
 398         uint32_t loglevel;      /* enum side_loglevel */
 399         uint32_t nr_fields;
 400         uint32_t nr_attr;
 401         uint32_t nr_callbacks;
 402 };
 403
 404 struct side_arg_dynamic_vec {
 405         uint32_t dynamic_type;  /* enum side_dynamic_type */
 406         union {
 407                 /* Basic types */
 408                 struct {
 409                         const struct side_attr *attr;
 410                         uint32_t nr_attr;
 411                         uint32_t byte_order;    /* enum side_type_byte_order */
 412                         union {
 413                                 union side_float_value float_value;
 414                                 uint8_t side_bool;
 415                                 uint8_t side_byte;
 416                                 uint64_t string;        /* const char * */
 417                         } u;
 418                 } side_basic;
 419
 420                 /* Integer type */
 421                 struct {
 422                         struct side_type_integer type;
 423                         union side_integer_value value;
 424                 } side_integer;
 425
 426                 /* Compound types */
 427                 const struct side_arg_dynamic_event_struct *side_dynamic_struct;
 428                 struct {
 429                         void *app_ctx;
 430                         side_dynamic_struct_visitor visitor;
 431                         const struct side_attr *attr;
 432                         uint32_t nr_attr;
 433                 } side_dynamic_struct_visitor;
 434                 const struct side_arg_dynamic_vec_vla *side_dynamic_vla;
 435                 struct {
 436                         void *app_ctx;
 437                         side_dynamic_vla_visitor visitor;
 438                         const struct side_attr *attr;
 439                         uint32_t nr_attr;
 440                 } side_dynamic_vla_visitor;
 441         } u;
 442 };
 443
 444 struct side_arg_dynamic_vec_vla {
 445         const struct side_arg_dynamic_vec *sav;
 446         const struct side_attr *attr;
 447         uint32_t len;
 448         uint32_t nr_attr;
 449 };
 450
 451 struct side_arg_dynamic_event_field {
 452         const char *field_name;
 453         const struct side_arg_dynamic_vec elem;
 454 };
 455
 456 struct side_arg_dynamic_event_struct {
 457         const struct side_arg_dynamic_event_field *fields;
 458         const struct side_attr *attr;
 459         uint32_t len;
 460         uint32_t nr_attr;
 461 };
 462
 463 struct side_arg_vec {
 464         enum side_type type;
 465         union {
 466                 /* Integer types */
 467                 union side_integer_value integer_value;
 468
 469                 /* Basic types */
 470                 union side_float_value float_value;
 471                 uint8_t side_bool;
 472                 uint8_t side_byte;
 473                 uint64_t string;        /* const char * */
 474
 475                 /* Compound types */
 476                 const struct side_arg_vec_description *side_struct;
 477                 const struct side_arg_vec_description *side_array;
 478                 const struct side_arg_vec_description *side_vla;
 479                 void *side_vla_app_visitor_ctx;
 480                 void *side_array_fixint;
 481                 struct {
 482                         void *p;
 483                         uint32_t length;
 484                 } side_vla_fixint;
 485                 void *side_struct_sg_ptr;
 486
 487                 /* Dynamic type */
 488                 struct side_arg_dynamic_vec dynamic;
 489         } u;
 490 };
 491
 492 struct side_arg_vec_description {
 493         const struct side_arg_vec *sav;
 494         uint32_t len;
 495 };
 496
 497 /* The visitor pattern is a double-dispatch visitor. */
 498 struct side_tracer_visitor_ctx {
 499         enum side_visitor_status (*write_elem)(
 500                         const struct side_tracer_visitor_ctx *tracer_ctx,
 501                         const struct side_arg_vec *elem);
 502         void *priv;             /* Private tracer context. */
 503 };
 504
 505 struct side_tracer_dynamic_struct_visitor_ctx {
 506         enum side_visitor_status (*write_field)(
 507                         const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
 508                         const struct side_arg_dynamic_event_field *dynamic_field);
 509         void *priv;             /* Private tracer context. */
 510 };
 511
 512 struct side_tracer_dynamic_vla_visitor_ctx {
 513         enum side_visitor_status (*write_elem)(
 514                         const struct side_tracer_dynamic_vla_visitor_ctx *tracer_ctx,
 515                         const struct side_arg_dynamic_vec *elem);
 516         void *priv;             /* Private tracer context. */
 517 };
 518
 519 /* Event and type attributes */
 520
 521 #if SIDE_BITS_PER_LONG == 64
 522 # define SIDE_TYPE_POINTER_HOST         SIDE_TYPE_POINTER64
 523 # define SIDE_TYPE_ARRAY_POINTER_HOST   SIDE_TYPE_ARRAY_POINTER64
 524 # define SIDE_TYPE_VLA_POINTER_HOST     SIDE_TYPE_VLA_POINTER64
 525 # define SIDE_DYNAMIC_TYPE_POINTER_HOST SIDE_DYNAMIC_TYPE_POINTER64
 526 # define SIDE_ATTR_TYPE_POINTER_HOST    SIDE_ATTR_TYPE_POINTER64
 527 # define SIDE_PTR_HOST                  .side_u64
 528 #else
 529 # define SIDE_TYPE_POINTER_HOST         SIDE_TYPE_POINTER32
 530 # define SIDE_TYPE_ARRAY_POINTER_HOST   SIDE_TYPE_ARRAY_POINTER32
 531 # define SIDE_TYPE_VLA_POINTER_HOST     SIDE_TYPE_VLA_POINTER32
 532 # define SIDE_DYNAMIC_TYPE_POINTER_HOST SIDE_DYNAMIC_TYPE_POINTER32
 533 # define SIDE_ATTR_TYPE_POINTER_HOST    SIDE_ATTR_TYPE_POINTER32
 534 # define SIDE_PTR_HOST                  .side_u32
 535 #endif
 536
 537 #define side_attr(_key, _value) \
 538         { \
 539                 .key = _key, \
 540                 .value = SIDE_PARAM(_value), \
 541         }
 542
 543 #define side_attr_list(...) \
 544         SIDE_COMPOUND_LITERAL(const struct side_attr, __VA_ARGS__)
 545
 546 #define side_attr_null(_val)            { .type = SIDE_ATTR_TYPE_NULL }
 547 #define side_attr_bool(_val)            { .type = SIDE_ATTR_TYPE_BOOL, .u = { .side_bool = !!(_val) } }
 548 #define side_attr_u8(_val)              { .type = SIDE_ATTR_TYPE_U8, .u = { .integer_value = { .side_u8 = (_val) } } }
 549 #define side_attr_u16(_val)             { .type = SIDE_ATTR_TYPE_U16, .u = { .integer_value = { .side_u16 = (_val) } } }
 550 #define side_attr_u32(_val)             { .type = SIDE_ATTR_TYPE_U32, .u = { .integer_value = { .side_u32 = (_val) } } }
 551 #define side_attr_u64(_val)             { .type = SIDE_ATTR_TYPE_U64, .u = { .integer_value = { .side_u64 = (_val) } } }
 552 #define side_attr_s8(_val)              { .type = SIDE_ATTR_TYPE_S8, .u = { .integer_value = { .side_s8 = (_val) } } }
 553 #define side_attr_s16(_val)             { .type = SIDE_ATTR_TYPE_S16, .u = { .integer_value = { .side_s16 = (_val) } } }
 554 #define side_attr_s32(_val)             { .type = SIDE_ATTR_TYPE_S32, .u = { .integer_value = { .side_s32 = (_val) } } }
 555 #define side_attr_s64(_val)             { .type = SIDE_ATTR_TYPE_S64, .u = { .integer_value = { .side_s64 = (_val) } } }
 556 #define side_attr_pointer(_val)         { .type = SIDE_ATTR_TYPE_POINTER_HOST, .u = { .integer_value = { SIDE_PTR_HOST = (uintptr_t) (_val) } } }
 557 #define side_attr_float_binary16(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY16, .u = { .float_value = { .side_float_binary16 = (_val) } } }
 558 #define side_attr_float_binary32(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY32, .u = { .float_value = { .side_float_binary32 = (_val) } } }
 559 #define side_attr_float_binary64(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY64, .u = { .float_value = { .side_float_binary64 = (_val) } } }
 560 #define side_attr_float_binary128(_val) { .type = SIDE_ATTR_TYPE_FLOAT_BINARY128, .u = { .float_value = { .side_float_binary128 = (_val) } } }
 561 #define side_attr_string(_val)          { .type = SIDE_ATTR_TYPE_STRING, .u = { .string = (uintptr_t) (_val) } }
 562
 563 /* Static field definition */
 564
 565 #define _side_type_basic(_type, _byte_order, _attr) \
 566         { \
 567                 .type = _type, \
 568                 .u = { \
 569                         .side_basic = { \
 570                                 .attr = _attr, \
 571                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 572                                 .byte_order = _byte_order, \
 573                         }, \
 574                 }, \
 575         }
 576
 577 #define _side_type_integer(_type, _signedness, _byte_order, _integer_size_bits, _len_bits, _attr) \
 578         { \
 579                 .type = _type, \
 580                 .u = { \
 581                         .side_integer = { \
 582                                 .attr = _attr, \
 583                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 584                                 .integer_size_bits = _integer_size_bits, \
 585                                 .len_bits = _len_bits, \
 586                                 .signedness = _signedness, \
 587                                 .byte_order = _byte_order, \
 588                         }, \
 589                 }, \
 590         }
 591
 592 #define _side_type_float(_type, _byte_order, _float_size_bits, _attr) \
 593         { \
 594                 .type = _type, \
 595                 .u = { \
 596                         .side_float = { \
 597                                 .attr = _attr, \
 598                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 599                                 .byte_order = _byte_order, \
 600                                 .float_size_bits = _float_size_bits, \
 601                         }, \
 602                 }, \
 603         }
 604
 605 #define _side_field(_name, _type) \
 606         { \
 607                 .field_name = _name, \
 608                 .side_type = _type, \
 609         }
 610
 611 /* Host endian */
 612 #define side_type_bool(_attr)                           _side_type_basic(SIDE_TYPE_BOOL, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 613 #define side_type_u8(_attr)                             _side_type_integer(SIDE_TYPE_U8, false, SIDE_TYPE_BYTE_ORDER_HOST, 8, 8, SIDE_PARAM(_attr))
 614 #define side_type_u16(_attr)                            _side_type_integer(SIDE_TYPE_U16, false, SIDE_TYPE_BYTE_ORDER_HOST, 16, 16, SIDE_PARAM(_attr))
 615 #define side_type_u32(_attr)                            _side_type_integer(SIDE_TYPE_U32, false, SIDE_TYPE_BYTE_ORDER_HOST, 32, 32, SIDE_PARAM(_attr))
 616 #define side_type_u64(_attr)                            _side_type_integer(SIDE_TYPE_U64, false, SIDE_TYPE_BYTE_ORDER_HOST, 64, 64, SIDE_PARAM(_attr))
 617 #define side_type_s8(_attr)                             _side_type_integer(SIDE_TYPE_S8, true, SIDE_TYPE_BYTE_ORDER_HOST, 8, 8, SIDE_PARAM(_attr))
 618 #define side_type_s16(_attr)                            _side_type_integer(SIDE_TYPE_S16, true, SIDE_TYPE_BYTE_ORDER_HOST, 16, 16, SIDE_PARAM(_attr))
 619 #define side_type_s32(_attr)                            _side_type_integer(SIDE_TYPE_S32, true, SIDE_TYPE_BYTE_ORDER_HOST, 32, 32, SIDE_PARAM(_attr))
 620 #define side_type_s64(_attr)                            _side_type_integer(SIDE_TYPE_S64, true, SIDE_TYPE_BYTE_ORDER_HOST, 64, 64, SIDE_PARAM(_attr))
 621 #define side_type_byte(_attr)                           _side_type_basic(SIDE_TYPE_BYTE, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 622 #define side_type_pointer(_attr)                        _side_type_basic(SIDE_TYPE_POINTER_HOST, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 623 #define side_type_float_binary16(_attr)                 _side_type_float(SIDE_TYPE_FLOAT_BINARY16, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, 16, SIDE_PARAM(_attr))
 624 #define side_type_float_binary32(_attr)                 _side_type_float(SIDE_TYPE_FLOAT_BINARY32, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, 32, SIDE_PARAM(_attr))
 625 #define side_type_float_binary64(_attr)                 _side_type_float(SIDE_TYPE_FLOAT_BINARY64, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, 64, SIDE_PARAM(_attr))
 626 #define side_type_float_binary128(_attr)                _side_type_float(SIDE_TYPE_FLOAT_BINARY128, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, 128, SIDE_PARAM(_attr))
 627 #define side_type_string(_attr)                         _side_type_basic(SIDE_TYPE_STRING, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 628 #define side_type_dynamic(_attr)                        _side_type_basic(SIDE_TYPE_DYNAMIC, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
 629
 630 #define side_field_bool(_name, _attr)                   _side_field(_name, side_type_bool(SIDE_PARAM(_attr)))
 631 #define side_field_u8(_name, _attr)                     _side_field(_name, side_type_u8(SIDE_PARAM(_attr)))
 632 #define side_field_u16(_name, _attr)                    _side_field(_name, side_type_u16(SIDE_PARAM(_attr)))
 633 #define side_field_u32(_name, _attr)                    _side_field(_name, side_type_u32(SIDE_PARAM(_attr)))
 634 #define side_field_u64(_name, _attr)                    _side_field(_name, side_type_u64(SIDE_PARAM(_attr)))
 635 #define side_field_s8(_name, _attr)                     _side_field(_name, side_type_s8(SIDE_PARAM(_attr)))
 636 #define side_field_s16(_name, _attr)                    _side_field(_name, side_type_s16(SIDE_PARAM(_attr)))
 637 #define side_field_s32(_name, _attr)                    _side_field(_name, side_type_s32(SIDE_PARAM(_attr)))
 638 #define side_field_s64(_name, _attr)                    _side_field(_name, side_type_s64(SIDE_PARAM(_attr)))
 639 #define side_field_byte(_name, _attr)                   _side_field(_name, side_type_byte(SIDE_PARAM(_attr)))
 640 #define side_field_pointer(_name, _attr)                _side_field(_name, side_type_pointer(SIDE_PARAM(_attr)))
 641 #define side_field_float_binary16(_name, _attr)         _side_field(_name, side_type_float_binary16(SIDE_PARAM(_attr)))
 642 #define side_field_float_binary32(_name, _attr)         _side_field(_name, side_type_float_binary32(SIDE_PARAM(_attr)))
 643 #define side_field_float_binary64(_name, _attr)         _side_field(_name, side_type_float_binary64(SIDE_PARAM(_attr)))
 644 #define side_field_float_binary128(_name, _attr)        _side_field(_name, side_type_float_binary128(SIDE_PARAM(_attr)))
 645 #define side_field_string(_name, _attr)                 _side_field(_name, side_type_string(SIDE_PARAM(_attr)))
 646 #define side_field_dynamic(_name, _attr)                _side_field(_name, side_type_dynamic(SIDE_PARAM(_attr)))
 647
 648 /* Little endian */
 649 #define side_type_u16_le(_attr)                         _side_type_integer(SIDE_TYPE_U16, false, SIDE_TYPE_BYTE_ORDER_LE, 16, 16, SIDE_PARAM(_attr))
 650 #define side_type_u32_le(_attr)                         _side_type_integer(SIDE_TYPE_U32, false, SIDE_TYPE_BYTE_ORDER_LE, 32, 32, SIDE_PARAM(_attr))
 651 #define side_type_u64_le(_attr)                         _side_type_integer(SIDE_TYPE_U64, false, SIDE_TYPE_BYTE_ORDER_LE, 64, 64, SIDE_PARAM(_attr))
 652 #define side_type_s16_le(_attr)                         _side_type_integer(SIDE_TYPE_S16, true, SIDE_TYPE_BYTE_ORDER_LE, 16, 16, SIDE_PARAM(_attr))
 653 #define side_type_s32_le(_attr)                         _side_type_integer(SIDE_TYPE_S32, true, SIDE_TYPE_BYTE_ORDER_LE, 32, 32, SIDE_PARAM(_attr))
 654 #define side_type_s64_le(_attr)                         _side_type_integer(SIDE_TYPE_S64, true, SIDE_TYPE_BYTE_ORDER_LE, 64, 64, SIDE_PARAM(_attr))
 655 #define side_type_pointer_le(_attr)                     _side_type_basic(SIDE_TYPE_POINTER_HOST, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
 656 #define side_type_float_binary16_le(_attr)              _side_type_float(SIDE_TYPE_FLOAT_BINARY16, SIDE_TYPE_BYTE_ORDER_LE, 16, SIDE_PARAM(_attr))
 657 #define side_type_float_binary32_le(_attr)              _side_type_float(SIDE_TYPE_FLOAT_BINARY32, SIDE_TYPE_BYTE_ORDER_LE, 32, SIDE_PARAM(_attr))
 658 #define side_type_float_binary64_le(_attr)              _side_type_float(SIDE_TYPE_FLOAT_BINARY64, SIDE_TYPE_BYTE_ORDER_LE, 64, SIDE_PARAM(_attr))
 659 #define side_type_float_binary128_le(_attr)             _side_type_float(SIDE_TYPE_FLOAT_BINARY128, SIDE_TYPE_BYTE_ORDER_LE, 128, SIDE_PARAM(_attr))
 660
 661 #define side_field_u16_le(_name, _attr)                 _side_field(_name, side_type_u16_le(SIDE_PARAM(_attr)))
 662 #define side_field_u32_le(_name, _attr)                 _side_field(_name, side_type_u32_le(SIDE_PARAM(_attr)))
 663 #define side_field_u64_le(_name, _attr)                 _side_field(_name, side_type_u64_le(SIDE_PARAM(_attr)))
 664 #define side_field_s16_le(_name, _attr)                 _side_field(_name, side_type_s16_le(SIDE_PARAM(_attr)))
 665 #define side_field_s32_le(_name, _attr)                 _side_field(_name, side_type_s32_le(SIDE_PARAM(_attr)))
 666 #define side_field_s64_le(_name, _attr)                 _side_field(_name, side_type_s64_le(SIDE_PARAM(_attr)))
 667 #define side_field_pointer_le(_name, _attr)             _side_field(_name, side_type_pointer_le(SIDE_PARAM(_attr)))
 668 #define side_field_float_binary16_le(_name, _attr)      _side_field(_name, side_type_float_binary16_le(SIDE_PARAM(_attr)))
 669 #define side_field_float_binary32_le(_name, _attr)      _side_field(_name, side_type_float_binary32_le(SIDE_PARAM(_attr)))
 670 #define side_field_float_binary64_le(_name, _attr)      _side_field(_name, side_type_float_binary64_le(SIDE_PARAM(_attr)))
 671 #define side_field_float_binary128_le(_name, _attr)     _side_field(_name, side_type_float_binary128_le(SIDE_PARAM(_attr)))
 672
 673 /* Big endian */
 674 #define side_type_u16_be(_attr)                         _side_type_integer(SIDE_TYPE_U16, false, SIDE_TYPE_BYTE_ORDER_BE, 16, 16, SIDE_PARAM(_attr))
 675 #define side_type_u32_be(_attr)                         _side_type_integer(SIDE_TYPE_U32, false, SIDE_TYPE_BYTE_ORDER_BE, 32, 32, SIDE_PARAM(_attr))
 676 #define side_type_u64_be(_attr)                         _side_type_integer(SIDE_TYPE_U64, false, SIDE_TYPE_BYTE_ORDER_BE, 64, 64, SIDE_PARAM(_attr))
 677 #define side_type_s16_be(_attr)                         _side_type_integer(SIDE_TYPE_S16, false, SIDE_TYPE_BYTE_ORDER_BE, 16, 16, SIDE_PARAM(_attr))
 678 #define side_type_s32_be(_attr)                         _side_type_integer(SIDE_TYPE_S32, false, SIDE_TYPE_BYTE_ORDER_BE, 32, 32, SIDE_PARAM(_attr))
 679 #define side_type_s64_be(_attr)                         _side_type_integer(SIDE_TYPE_S64, false, SIDE_TYPE_BYTE_ORDER_BE, 64, 64, SIDE_PARAM(_attr))
 680 #define side_type_pointer_be(_attr)                     _side_type_basic(SIDE_TYPE_POINTER_HOST, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
 681 #define side_type_float_binary16_be(_attr)              _side_type_float(SIDE_TYPE_FLOAT_BINARY16, SIDE_TYPE_BYTE_ORDER_BE, 16, SIDE_PARAM(_attr))
 682 #define side_type_float_binary32_be(_attr)              _side_type_float(SIDE_TYPE_FLOAT_BINARY32, SIDE_TYPE_BYTE_ORDER_BE, 32, SIDE_PARAM(_attr))
 683 #define side_type_float_binary64_be(_attr)              _side_type_float(SIDE_TYPE_FLOAT_BINARY64, SIDE_TYPE_BYTE_ORDER_BE, 64, SIDE_PARAM(_attr))
 684 #define side_type_float_binary128_be(_attr)             _side_type_float(SIDE_TYPE_FLOAT_BINARY128, SIDE_TYPE_BYTE_ORDER_BE, 128, SIDE_PARAM(_attr))
 685
 686 #define side_field_u16_be(_name, _attr)                 _side_field(_name, side_type_u16_be(SIDE_PARAM(_attr)))
 687 #define side_field_u32_be(_name, _attr)                 _side_field(_name, side_type_u32_be(SIDE_PARAM(_attr)))
 688 #define side_field_u64_be(_name, _attr)                 _side_field(_name, side_type_u64_be(SIDE_PARAM(_attr)))
 689 #define side_field_s16_be(_name, _attr)                 _side_field(_name, side_type_s16_be(SIDE_PARAM(_attr)))
 690 #define side_field_s32_be(_name, _attr)                 _side_field(_name, side_type_s32_be(SIDE_PARAM(_attr)))
 691 #define side_field_s64_be(_name, _attr)                 _side_field(_name, side_type_s64_be(SIDE_PARAM(_attr)))
 692 #define side_field_pointer_be(_name, _attr)             _side_field(_name, side_type_pointer_be(SIDE_PARAM(_attr)))
 693 #define side_field_float_binary16_be(_name, _attr)      _side_field(_name, side_type_float_binary16_be(SIDE_PARAM(_attr)))
 694 #define side_field_float_binary32_be(_name, _attr)      _side_field(_name, side_type_float_binary32_be(SIDE_PARAM(_attr)))
 695 #define side_field_float_binary64_be(_name, _attr)      _side_field(_name, side_type_float_binary64_be(SIDE_PARAM(_attr)))
 696 #define side_field_float_binary128_be(_name, _attr)     _side_field(_name, side_type_float_binary128_be(SIDE_PARAM(_attr)))
 697
 698 #define side_type_enum(_mappings, _elem_type) \
 699         { \
 700                 .type = SIDE_TYPE_ENUM, \
 701                 .u = { \
 702                         .side_enum = { \
 703                                 .mappings = _mappings, \
 704                                 .elem_type = _elem_type, \
 705                         }, \
 706                 }, \
 707         }
 708 #define side_field_enum(_name, _mappings, _elem_type) \
 709         _side_field(_name, side_type_enum(SIDE_PARAM(_mappings), SIDE_PARAM(_elem_type)))
 710
 711 #define side_type_enum_bitmap(_mappings, _elem_type) \
 712         { \
 713                 .type = SIDE_TYPE_ENUM_BITMAP, \
 714                 .u = { \
 715                         .side_enum_bitmap = { \
 716                                 .mappings = _mappings, \
 717                                 .elem_type = _elem_type, \
 718                         }, \
 719                 }, \
 720         }
 721 #define side_field_enum_bitmap(_name, _mappings, _elem_type) \
 722         _side_field(_name, side_type_enum_bitmap(SIDE_PARAM(_mappings), SIDE_PARAM(_elem_type)))
 723
 724 #define side_type_struct(_struct) \
 725         { \
 726                 .type = SIDE_TYPE_STRUCT, \
 727                 .u = { \
 728                         .side_struct = _struct, \
 729                 }, \
 730         }
 731 #define side_field_struct(_name, _struct) \
 732         _side_field(_name, side_type_struct(SIDE_PARAM(_struct)))
 733
 734 #define _side_type_struct_define(_fields, _attr) \
 735         { \
 736                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \
 737                 .nr_attr  = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 738                 .fields = _fields, \
 739                 .attr = _attr, \
 740         }
 741
 742 #define side_define_struct(_identifier, _fields, _attr) \
 743         const struct side_type_struct _identifier = _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr))
 744
 745 #define side_struct_literal(_fields, _attr) \
 746         SIDE_COMPOUND_LITERAL(const struct side_type_struct, \
 747                 _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr)))
 748
 749 /* Scatter-gather struct */
 750
 751 #define _side_type_sg_integer(_type, _byte_order, _integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \
 752         { \
 753                 .type = _type, \
 754                 .u = { \
 755                         .side_basic = { \
 756                                 .attr = _attr, \
 757                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 758                                 .byte_order = _byte_order, \
 759                                 .integer_offset = _integer_offset, \
 760                                 .integer_size_bits = _integer_size_bits, \
 761                                 .offset_bits = _offset_bits, \
 762                                 .len_bits = _len_bits, \
 763                         }, \
 764                 }, \
 765         }
 766
 767 #define _side_field_sg(_name, _type) \
 768         { \
 769                 .field_name = _name, \
 770                 .side_type = _type, \
 771         }
 772
 773 #define side_type_sg_unsigned_integer(_integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \
 774         _side_type_sg_integer(SIDE_TYPE_SG_UNSIGNED_INT, SIDE_TYPE_BYTE_ORDER_HOST, \
 775                         _integer_offset, _integer_size_bits, _offset_bits, _len_bits, SIDE_PARAM(_attr))
 776 #define side_type_sg_signed_integer(_integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \
 777         _side_type_sg_integer(SIDE_TYPE_SG_SIGNED_INT, SIDE_TYPE_BYTE_ORDER_HOST, \
 778                         _integer_offset, _integer_size_bits, _offset_bits, _len_bits, SIDE_PARAM(_attr))
 779
 780 #define side_field_sg_unsigned_integer(_name, _integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \
 781         _side_field_sg(_name, side_type_sg_unsigned_integer(_integer_offset, _integer_size_bits, _offset_bits, _len_bits, SIDE_PARAM(_attr)))
 782 #define side_field_sg_signed_integer(_name, _integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \
 783         _side_field_sg(_name, side_type_sg_signed_integer(_integer_offset, _integer_size_bits, _offset_bits, _len_bits, SIDE_PARAM(_attr)))
 784
 785 #define side_type_struct_sg(_struct_sg) \
 786         { \
 787                 .type = SIDE_TYPE_STRUCT_SG, \
 788                 .u = { \
 789                         .side_struct_sg = _struct_sg, \
 790                 }, \
 791         }
 792 #define side_field_struct_sg(_name, _struct_sg) \
 793         _side_field(_name, side_type_struct_sg(SIDE_PARAM(_struct_sg)))
 794
 795 #define _side_type_struct_sg_define(_fields_sg, _attr) \
 796         { \
 797                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields_sg)), \
 798                 .nr_attr  = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 799                 .fields_sg = _fields_sg, \
 800                 .attr = _attr, \
 801         }
 802
 803 #define side_define_struct_sg(_identifier, _fields_sg, _attr) \
 804         const struct side_type_struct_sg _identifier = _side_type_struct_sg_define(SIDE_PARAM(_fields_sg), SIDE_PARAM(_attr))
 805
 806 #define side_struct_sg_literal(_fields_sg, _attr) \
 807         SIDE_COMPOUND_LITERAL(const struct side_type_struct_sg, \
 808                 _side_type_struct_sg_define(SIDE_PARAM(_fields_sg), SIDE_PARAM(_attr)))
 809
 810 #define side_type_array(_elem_type, _length, _attr) \
 811         { \
 812                 .type = SIDE_TYPE_ARRAY, \
 813                 .u = { \
 814                         .side_array = { \
 815                                 .elem_type = _elem_type, \
 816                                 .attr = _attr, \
 817                                 .length = _length, \
 818                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 819                         }, \
 820                 }, \
 821         }
 822 #define side_field_array(_name, _elem_type, _length, _attr) \
 823         _side_field(_name, side_type_array(SIDE_PARAM(_elem_type), _length, SIDE_PARAM(_attr)))
 824
 825 #define side_type_vla(_elem_type, _attr) \
 826         { \
 827                 .type = SIDE_TYPE_VLA, \
 828                 .u = { \
 829                         .side_vla = { \
 830                                 .elem_type = _elem_type, \
 831                                 .attr = _attr, \
 832                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 833                         }, \
 834                 }, \
 835         }
 836 #define side_field_vla(_name, _elem_type, _attr) \
 837         _side_field(_name, side_type_vla(SIDE_PARAM(_elem_type), SIDE_PARAM(_attr)))
 838
 839 #define side_type_vla_visitor(_elem_type, _visitor, _attr) \
 840         { \
 841                 .type = SIDE_TYPE_VLA_VISITOR, \
 842                 .u = { \
 843                         .side_vla_visitor = { \
 844                                 .elem_type = SIDE_PARAM(_elem_type), \
 845                                 .visitor = _visitor, \
 846                                 .attr = _attr, \
 847                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 848                         }, \
 849                 }, \
 850         }
 851 #define side_field_vla_visitor(_name, _elem_type, _visitor, _attr) \
 852         _side_field(_name, side_type_vla_visitor(SIDE_PARAM(_elem_type), _visitor, SIDE_PARAM(_attr)))
 853
 854 #define side_elem(...) \
 855         SIDE_COMPOUND_LITERAL(const struct side_type_description, __VA_ARGS__)
 856
 857 #define side_field_list(...) \
 858         SIDE_COMPOUND_LITERAL(const struct side_event_field, __VA_ARGS__)
 859
 860 #define side_field_sg_list(...) \
 861         SIDE_COMPOUND_LITERAL(const struct side_struct_field_sg, __VA_ARGS__)
 862
 863 /* Static field arguments */
 864
 865 #define side_arg_bool(_val)             { .type = SIDE_TYPE_BOOL, .u = { .side_bool = !!(_val) } }
 866 #define side_arg_u8(_val)               { .type = SIDE_TYPE_U8, .u = { .integer_value = { .side_u8 = (_val) } } }
 867 #define side_arg_u16(_val)              { .type = SIDE_TYPE_U16, .u = { .integer_value = { .side_u16 = (_val) } } }
 868 #define side_arg_u32(_val)              { .type = SIDE_TYPE_U32, .u = { .integer_value = { .side_u32 = (_val) } } }
 869 #define side_arg_u64(_val)              { .type = SIDE_TYPE_U64, .u = { .integer_value = { .side_u64 = (_val) } } }
 870 #define side_arg_s8(_val)               { .type = SIDE_TYPE_S8, .u = { .integer_value = { .side_s8 = (_val) } } }
 871 #define side_arg_s16(_val)              { .type = SIDE_TYPE_S16, .u = { .integer_value = { .side_s16 = (_val) } } }
 872 #define side_arg_s32(_val)              { .type = SIDE_TYPE_S32, .u = { .integer_value = { .side_s32 = (_val) } } }
 873 #define side_arg_s64(_val)              { .type = SIDE_TYPE_S64, .u = { .integer_value = { .side_s64 = (_val) } } }
 874 #define side_arg_byte(_val)             { .type = SIDE_TYPE_BYTE, .u = { .side_byte = (_val) } }
 875 #define side_arg_pointer(_val)          { .type = SIDE_TYPE_POINTER_HOST, .u = { .integer_value = { SIDE_PTR_HOST = (uintptr_t) (_val) } } }
 876 #define side_arg_enum_bitmap8(_val)     { .type = SIDE_TYPE_ENUM_BITMAP8, .u = { .integer_value = { .side_u8 = (_val) } } }
 877 #define side_arg_enum_bitmap16(_val)    { .type = SIDE_TYPE_ENUM_BITMAP16, .u = { .integer_value = { .side_u16 = (_val) } } }
 878 #define side_arg_enum_bitmap32(_val)    { .type = SIDE_TYPE_ENUM_BITMAP32, .u = { .integer_value = { .side_u32 = (_val) } } }
 879 #define side_arg_enum_bitmap64(_val)    { .type = SIDE_TYPE_ENUM_BITMAP64, .u = { .integer_value = { .side_u64 = (_val) } } }
 880 #define side_arg_enum_bitmap_array(_side_type)  { .type = SIDE_TYPE_ENUM_BITMAP_ARRAY, .u = { .side_array = (_side_type) } }
 881 #define side_arg_enum_bitmap_vla(_side_type)    { .type = SIDE_TYPE_ENUM_BITMAP_VLA, .u = { .side_vla = (_side_type) } }
 882 #define side_arg_float_binary16(_val)   { .type = SIDE_TYPE_FLOAT_BINARY16, .u = { .float_value = { .side_float_binary16 = (_val) } } }
 883 #define side_arg_float_binary32(_val)   { .type = SIDE_TYPE_FLOAT_BINARY32, .u = { .float_value = { .side_float_binary32 = (_val) } } }
 884 #define side_arg_float_binary64(_val)   { .type = SIDE_TYPE_FLOAT_BINARY64, .u = { .float_value = { .side_float_binary64 = (_val) } } }
 885 #define side_arg_float_binary128(_val)  { .type = SIDE_TYPE_FLOAT_BINARY128, .u = { .float_value = { .side_float_binary128 = (_val) } } }
 886
 887 #define side_arg_string(_val)           { .type = SIDE_TYPE_STRING, .u = { .string = (uintptr_t) (_val) } }
 888 #define side_arg_struct(_side_type)     { .type = SIDE_TYPE_STRUCT, .u = { .side_struct = (_side_type) } }
 889 #define side_arg_struct_sg(_ptr)        { .type = SIDE_TYPE_STRUCT_SG, .u = { .side_struct_sg_ptr = (_ptr) } }
 890 #define side_arg_array(_side_type)      { .type = SIDE_TYPE_ARRAY, .u = { .side_array = (_side_type) } }
 891 #define side_arg_vla(_side_type)        { .type = SIDE_TYPE_VLA, .u = { .side_vla = (_side_type) } }
 892 #define side_arg_vla_visitor(_ctx)      { .type = SIDE_TYPE_VLA_VISITOR, .u = { .side_vla_app_visitor_ctx = (_ctx) } }
 893
 894 #define side_arg_array_u8(_ptr)         { .type = SIDE_TYPE_ARRAY_U8, .u = { .side_array_fixint = (_ptr) } }
 895 #define side_arg_array_u16(_ptr)        { .type = SIDE_TYPE_ARRAY_U16, .u = { .side_array_fixint = (_ptr) } }
 896 #define side_arg_array_u32(_ptr)        { .type = SIDE_TYPE_ARRAY_U32, .u = { .side_array_fixint = (_ptr) } }
 897 #define side_arg_array_u64(_ptr)        { .type = SIDE_TYPE_ARRAY_U64, .u = { .side_array_fixint = (_ptr) } }
 898 #define side_arg_array_s8(_ptr)         { .type = SIDE_TYPE_ARRAY_S8, .u = { .side_array_fixint = (_ptr) } }
 899 #define side_arg_array_s16(_ptr)        { .type = SIDE_TYPE_ARRAY_S16, .u = { .side_array_fixint  = (_ptr) } }
 900 #define side_arg_array_s32(_ptr)        { .type = SIDE_TYPE_ARRAY_S32, .u = { .side_array_fixint = (_ptr) } }
 901 #define side_arg_array_s64(_ptr)        { .type = SIDE_TYPE_ARRAY_S64, .u = { .side_array_fixint = (_ptr) } }
 902 #define side_arg_array_byte(_ptr)       { .type = SIDE_TYPE_ARRAY_BYTE, .u = { .side_array_fixint = (_ptr) } }
 903 #define side_arg_array_pointer(_ptr)    { .type = SIDE_TYPE_ARRAY_POINTER_HOST, .u = { .side_array_fixint = (_ptr) } }
 904
 905 #define side_arg_vla_u8(_ptr, _length)  { .type = SIDE_TYPE_VLA_U8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } }
 906 #define side_arg_vla_u16(_ptr, _length) { .type = SIDE_TYPE_VLA_U16, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 907 #define side_arg_vla_u32(_ptr, _length) { .type = SIDE_TYPE_VLA_U32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 908 #define side_arg_vla_u64(_ptr, _length) { .type = SIDE_TYPE_VLA_U64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 909 #define side_arg_vla_s8(_ptr, _length)  { .type = SIDE_TYPE_VLA_S8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 910 #define side_arg_vla_s16(_ptr, _length) { .type = SIDE_TYPE_VLA_S16, .u = { .side_vla_fixint  = { .p = (_ptr), .length = (_length) } } }
 911 #define side_arg_vla_s32(_ptr, _length) { .type = SIDE_TYPE_VLA_S32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 912 #define side_arg_vla_s64(_ptr, _length) { .type = SIDE_TYPE_VLA_S64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 913 #define side_arg_vla_byte(_ptr, _length) { .type = SIDE_TYPE_VLA_BYTE, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 914 #define side_arg_vla_pointer(_ptr, _length) { .type = SIDE_TYPE_VLA_POINTER_HOST, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 915
 916 #define side_arg_dynamic(_dynamic_arg_type) \
 917         { \
 918                 .type = SIDE_TYPE_DYNAMIC, \
 919                 .u = { \
 920                         .dynamic = _dynamic_arg_type, \
 921                 }, \
 922         }
 923
 924 /* Dynamic field arguments */
 925
 926 #define side_arg_dynamic_null(_attr) \
 927         { \
 928                 .dynamic_type = SIDE_DYNAMIC_TYPE_NULL, \
 929                 .u = { \
 930                         .side_basic = { \
 931                                 .attr = _attr, \
 932                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 933                                 .byte_order = SIDE_TYPE_BYTE_ORDER_HOST, \
 934                         }, \
 935                 }, \
 936         }
 937
 938 #define side_arg_dynamic_bool(_val, _attr) \
 939         { \
 940                 .dynamic_type = SIDE_DYNAMIC_TYPE_BOOL, \
 941                 .u = { \
 942                         .side_basic = { \
 943                                 .attr = _attr, \
 944                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 945                                 .byte_order = SIDE_TYPE_BYTE_ORDER_HOST, \
 946                                 .u = { \
 947                                         .side_bool = !!(_val), \
 948                                 }, \
 949                         }, \
 950                 }, \
 951         }
 952
 953 #define side_arg_dynamic_byte(_val, _attr) \
 954         { \
 955                 .dynamic_type = SIDE_DYNAMIC_TYPE_BYTE, \
 956                 .u = { \
 957                         .side_basic = { \
 958                                 .attr = _attr, \
 959                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 960                                 .byte_order = SIDE_TYPE_BYTE_ORDER_HOST, \
 961                                 .u = { \
 962                                         .side_byte = (_val), \
 963                                 }, \
 964                         }, \
 965                 }, \
 966         }
 967 #define side_arg_dynamic_string(_val, _attr) \
 968         { \
 969                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRING, \
 970                 .u = { \
 971                         .side_basic = { \
 972                                 .attr = _attr, \
 973                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 974                                 .byte_order = SIDE_TYPE_BYTE_ORDER_HOST, \
 975                                 .u = { \
 976                                         .string = (uintptr_t) (_val), \
 977                                 }, \
 978                         }, \
 979                 }, \
 980         }
 981
 982 #define _side_arg_dynamic_integer(_field, _val, _type, _signedness, _byte_order, _integer_size_bits, _len_bits, _attr) \
 983         { \
 984                 .dynamic_type = _type, \
 985                 .u = { \
 986                         .side_integer = { \
 987                                 .type = { \
 988                                         .attr = _attr, \
 989                                         .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 990                                         .integer_size_bits = _integer_size_bits, \
 991                                         .len_bits = _len_bits, \
 992                                         .signedness = _signedness, \
 993                                         .byte_order = _byte_order, \
 994                                 }, \
 995                                 .value = { \
 996                                         _field = (_val), \
 997                                 }, \
 998                         }, \
 999                 }, \
1000         }
1001
1002 #define side_arg_dynamic_u8(_val, _attr) \
1003         _side_arg_dynamic_integer(.side_u8, _val, SIDE_DYNAMIC_TYPE_U8, false, SIDE_TYPE_BYTE_ORDER_HOST, 8, 8, SIDE_PARAM(_attr))
1004 #define side_arg_dynamic_s8(_val, _attr) \
1005         _side_arg_dynamic_integer(.side_s8, _val, SIDE_DYNAMIC_TYPE_S8, true, SIDE_TYPE_BYTE_ORDER_HOST, 8, 8, SIDE_PARAM(_attr))
1006
1007 #define _side_arg_dynamic_u16(_val, _byte_order, _attr) \
1008         _side_arg_dynamic_integer(.side_u16, _val, SIDE_DYNAMIC_TYPE_U16, false, _byte_order, 16, 16, SIDE_PARAM(_attr))
1009 #define _side_arg_dynamic_u32(_val, _byte_order, _attr) \
1010         _side_arg_dynamic_integer(.side_u32, _val, SIDE_DYNAMIC_TYPE_U32, false, _byte_order, 32, 32, SIDE_PARAM(_attr))
1011 #define _side_arg_dynamic_u64(_val, _byte_order, _attr) \
1012         _side_arg_dynamic_integer(.side_u64, _val, SIDE_DYNAMIC_TYPE_U64, false, _byte_order, 64, 64, SIDE_PARAM(_attr))
1013
1014 #define _side_arg_dynamic_s16(_val, _byte_order, _attr) \
1015         _side_arg_dynamic_integer(.side_s16, _val, SIDE_DYNAMIC_TYPE_S16, true, _byte_order, 16, 16, SIDE_PARAM(_attr))
1016 #define _side_arg_dynamic_s32(_val, _byte_order, _attr) \
1017         _side_arg_dynamic_integer(.side_s32, _val, SIDE_DYNAMIC_TYPE_S32, true, _byte_order, 32, 32, SIDE_PARAM(_attr))
1018 #define _side_arg_dynamic_s64(_val, _byte_order, _attr) \
1019         _side_arg_dynamic_integer(.side_s64, _val, SIDE_DYNAMIC_TYPE_S64, true, _byte_order, 64, 64, SIDE_PARAM(_attr))
1020
1021 #define _side_arg_dynamic_pointer(_val, _byte_order, _attr) \
1022         _side_arg_dynamic_integer(SIDE_PTR_HOST, (uintptr_t) (_val), SIDE_DYNAMIC_TYPE_POINTER_HOST, false, _byte_order, \
1023                         SIDE_BITS_PER_LONG, SIDE_BITS_PER_LONG, SIDE_PARAM(_attr))
1024
1025 #define _side_arg_dynamic_float_binary16(_val, _byte_order, _attr) \
1026         { \
1027                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY16, \
1028                 .u = { \
1029                         .side_basic = { \
1030                                 .attr = _attr, \
1031                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1032                                 .byte_order = _byte_order, \
1033                                 .u = { \
1034                                         .float_value.side_float_binary16 = (_val), \
1035                                 }, \
1036                         }, \
1037                 }, \
1038         }
1039 #define _side_arg_dynamic_float_binary32(_val, _byte_order, _attr) \
1040         { \
1041                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY32, \
1042                 .u = { \
1043                         .side_basic = { \
1044                                 .attr = _attr, \
1045                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1046                                 .byte_order = _byte_order, \
1047                                 .u = { \
1048                                         .float_value.side_float_binary32 = (_val), \
1049                                 }, \
1050                         }, \
1051                 }, \
1052         }
1053 #define _side_arg_dynamic_float_binary64(_val, _byte_order, _attr) \
1054         { \
1055                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY64, \
1056                 .u = { \
1057                         .side_basic = { \
1058                                 .attr = _attr, \
1059                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1060                                 .byte_order = _byte_order, \
1061                                 .u = { \
1062                                         .float_value.side_float_binary64 = (_val), \
1063                                 }, \
1064                         }, \
1065                 }, \
1066         }
1067 #define _side_arg_dynamic_float_binary128(_val, _byte_order, _attr) \
1068         { \
1069                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY128, \
1070                 .u = { \
1071                         .side_basic = { \
1072                                 .attr = _attr, \
1073                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1074                                 .byte_order = _byte_order, \
1075                                 .u = { \
1076                                         .float_value.side_float_binary128 = (_val), \
1077                                 }, \
1078                         }, \
1079                 }, \
1080         }
1081
1082 /* Host endian */
1083 #define side_arg_dynamic_u16(_val, _attr)               _side_arg_dynamic_u16(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1084 #define side_arg_dynamic_u32(_val, _attr)               _side_arg_dynamic_u32(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1085 #define side_arg_dynamic_u64(_val, _attr)               _side_arg_dynamic_u64(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1086 #define side_arg_dynamic_s16(_val, _attr)               _side_arg_dynamic_s16(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1087 #define side_arg_dynamic_s32(_val, _attr)               _side_arg_dynamic_s32(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1088 #define side_arg_dynamic_s64(_val, _attr)               _side_arg_dynamic_s64(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1089 #define side_arg_dynamic_pointer(_val, _attr)           _side_arg_dynamic_pointer(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr))
1090 #define side_arg_dynamic_float_binary16(_val, _attr)    _side_arg_dynamic_float_binary16(_val, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr))
1091 #define side_arg_dynamic_float_binary32(_val, _attr)    _side_arg_dynamic_float_binary32(_val, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr))
1092 #define side_arg_dynamic_float_binary64(_val, _attr)    _side_arg_dynamic_float_binary64(_val, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr))
1093 #define side_arg_dynamic_float_binary128(_val, _attr)   _side_arg_dynamic_float_binary128(_val, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr))
1094
1095 /* Little endian */
1096 #define side_arg_dynamic_u16_le(_val, _attr)                    _side_arg_dynamic_u16(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1097 #define side_arg_dynamic_u32_le(_val, _attr)                    _side_arg_dynamic_u32(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1098 #define side_arg_dynamic_u64_le(_val, _attr)                    _side_arg_dynamic_u64(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1099 #define side_arg_dynamic_s16_le(_val, _attr)                    _side_arg_dynamic_s16(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1100 #define side_arg_dynamic_s32_le(_val, _attr)                    _side_arg_dynamic_s32(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1101 #define side_arg_dynamic_s64_le(_val, _attr)                    _side_arg_dynamic_s64(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1102 #define side_arg_dynamic_pointer_le(_val, _attr)                _side_arg_dynamic_pointer(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1103 #define side_arg_dynamic_float_binary16_le(_val, _attr)         _side_arg_dynamic_float_binary16(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1104 #define side_arg_dynamic_float_binary32_le(_val, _attr)         _side_arg_dynamic_float_binary32(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1105 #define side_arg_dynamic_float_binary64_le(_val, _attr)         _side_arg_dynamic_float_binary64(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1106 #define side_arg_dynamic_float_binary128_le(_val, _attr)        _side_arg_dynamic_float_binary128(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr))
1107
1108 /* Big endian */
1109 #define side_arg_dynamic_u16_be(_val, _attr)                    _side_arg_dynamic_u16(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1110 #define side_arg_dynamic_u32_be(_val, _attr)                    _side_arg_dynamic_u32(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1111 #define side_arg_dynamic_u64_be(_val, _attr)                    _side_arg_dynamic_u64(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1112 #define side_arg_dynamic_s16_be(_val, _attr)                    _side_arg_dynamic_s16(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1113 #define side_arg_dynamic_s32_be(_val, _attr)                    _side_arg_dynamic_s32(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1114 #define side_arg_dynamic_s64_be(_val, _attr)                    _side_arg_dynamic_s64(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1115 #define side_arg_dynamic_pointer_be(_val, _attr)                _side_arg_dynamic_pointer(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1116 #define side_arg_dynamic_float_binary16_be(_val, _attr)         _side_arg_dynamic_float_binary16(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1117 #define side_arg_dynamic_float_binary32_be(_val, _attr)         _side_arg_dynamic_float_binary32(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1118 #define side_arg_dynamic_float_binary64_be(_val, _attr)         _side_arg_dynamic_float_binary64(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1119 #define side_arg_dynamic_float_binary128_be(_val, _attr)        _side_arg_dynamic_float_binary128(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr))
1120
1121 #define side_arg_dynamic_vla(_vla) \
1122         { \
1123                 .dynamic_type = SIDE_DYNAMIC_TYPE_VLA, \
1124                 .u = { \
1125                         .side_dynamic_vla = (_vla), \
1126                 }, \
1127         }
1128
1129 #define side_arg_dynamic_vla_visitor(_dynamic_vla_visitor, _ctx, _attr) \
1130         { \
1131                 .dynamic_type = SIDE_DYNAMIC_TYPE_VLA_VISITOR, \
1132                 .u = { \
1133                         .side_dynamic_vla_visitor = { \
1134                                 .app_ctx = _ctx, \
1135                                 .visitor = _dynamic_vla_visitor, \
1136                                 .attr = _attr, \
1137                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1138                         }, \
1139                 }, \
1140         }
1141
1142 #define side_arg_dynamic_struct(_struct) \
1143         { \
1144                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT, \
1145                 .u = { \
1146                         .side_dynamic_struct = (_struct), \
1147                 }, \
1148         }
1149
1150 #define side_arg_dynamic_struct_visitor(_dynamic_struct_visitor, _ctx, _attr) \
1151         { \
1152                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT_VISITOR, \
1153                 .u = { \
1154                         .side_dynamic_struct_visitor = { \
1155                                 .app_ctx = _ctx, \
1156                                 .visitor = _dynamic_struct_visitor, \
1157                                 .attr = _attr, \
1158                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1159                         }, \
1160                 }, \
1161         }
1162
1163 #define side_arg_dynamic_define_vec(_identifier, _sav, _attr) \
1164         const struct side_arg_dynamic_vec _identifier##_vec[] = { _sav }; \
1165         const struct side_arg_dynamic_vec_vla _identifier = { \
1166                 .sav = _identifier##_vec, \
1167                 .attr = _attr, \
1168                 .len = SIDE_ARRAY_SIZE(_identifier##_vec), \
1169                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1170         }
1171
1172 #define side_arg_dynamic_define_struct(_identifier, _struct_fields, _attr) \
1173         const struct side_arg_dynamic_event_field _identifier##_fields[] = { _struct_fields }; \
1174         const struct side_arg_dynamic_event_struct _identifier = { \
1175                 .fields = _identifier##_fields, \
1176                 .attr = _attr, \
1177                 .len = SIDE_ARRAY_SIZE(_identifier##_fields), \
1178                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1179         }
1180
1181 #define side_arg_define_vec(_identifier, _sav) \
1182         const struct side_arg_vec _identifier##_vec[] = { _sav }; \
1183         const struct side_arg_vec_description _identifier = { \
1184                 .sav = _identifier##_vec, \
1185                 .len = SIDE_ARRAY_SIZE(_identifier##_vec), \
1186         }
1187
1188 #define side_arg_dynamic_field(_name, _elem) \
1189         { \
1190                 .field_name = _name, \
1191                 .elem = _elem, \
1192         }
1193
1194 #define side_arg_list(...)      __VA_ARGS__
1195
1196 #define side_define_enum(_identifier, _mappings, _attr) \
1197         const struct side_enum_mappings _identifier = { \
1198                 .mappings = _mappings, \
1199                 .attr = _attr, \
1200                 .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \
1201                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1202         }
1203
1204 #define side_enum_mapping_list(...) \
1205         SIDE_COMPOUND_LITERAL(const struct side_enum_mapping, __VA_ARGS__)
1206
1207 #define side_enum_mapping_range(_label, _begin, _end) \
1208         { \
1209                 .range_begin = _begin, \
1210                 .range_end = _end, \
1211                 .label = _label, \
1212         }
1213
1214 #define side_enum_mapping_value(_label, _value) \
1215         { \
1216                 .range_begin = _value, \
1217                 .range_end = _value, \
1218                 .label = _label, \
1219         }
1220
1221 #define side_define_enum_bitmap(_identifier, _mappings, _attr) \
1222         const struct side_enum_bitmap_mappings _identifier = { \
1223                 .mappings = _mappings, \
1224                 .attr = _attr, \
1225                 .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \
1226                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1227         }
1228
1229 #define side_enum_bitmap_mapping_list(...) \
1230         SIDE_COMPOUND_LITERAL(const struct side_enum_bitmap_mapping, __VA_ARGS__)
1231
1232 #define side_enum_bitmap_mapping_range(_label, _begin, _end) \
1233         { \
1234                 .range_begin = _begin, \
1235                 .range_end = _end, \
1236                 .label = _label, \
1237         }
1238
1239 #define side_enum_bitmap_mapping_value(_label, _value) \
1240         { \
1241                 .range_begin = _value, \
1242                 .range_end = _value, \
1243                 .label = _label, \
1244         }
1245
1246 #define side_event_cond(_identifier) \
1247         if (side_unlikely(__atomic_load_n(&side_event_enable__##_identifier, \
1248                                         __ATOMIC_RELAXED)))
1249
1250 #define side_event_call(_identifier, _sav) \
1251         { \
1252                 const struct side_arg_vec side_sav[] = { _sav }; \
1253                 const struct side_arg_vec_description sav_desc = { \
1254                         .sav = side_sav, \
1255                         .len = SIDE_ARRAY_SIZE(side_sav), \
1256                 }; \
1257                 side_call(&(_identifier), &sav_desc); \
1258         }
1259
1260 #define side_event(_identifier, _sav) \
1261         side_event_cond(_identifier) \
1262                 side_event_call(_identifier, SIDE_PARAM(_sav))
1263
1264 #define side_event_call_variadic(_identifier, _sav, _var_fields, _attr) \
1265         { \
1266                 const struct side_arg_vec side_sav[] = { _sav }; \
1267                 const struct side_arg_vec_description sav_desc = { \
1268                         .sav = side_sav, \
1269                         .len = SIDE_ARRAY_SIZE(side_sav), \
1270                 }; \
1271                 const struct side_arg_dynamic_event_field side_fields[] = { _var_fields }; \
1272                 const struct side_arg_dynamic_event_struct var_struct = { \
1273                         .fields = side_fields, \
1274                         .attr = _attr, \
1275                         .len = SIDE_ARRAY_SIZE(side_fields), \
1276                         .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1277                 }; \
1278                 side_call_variadic(&(_identifier), &sav_desc, &var_struct); \
1279         }
1280
1281 #define side_event_variadic(_identifier, _sav, _var, _attr) \
1282         side_event_cond(_identifier) \
1283                 side_event_call_variadic(_identifier, SIDE_PARAM(_sav), SIDE_PARAM(_var), SIDE_PARAM(_attr))
1284
1285 #define _side_define_event(_linkage, _identifier, _provider, _event, _loglevel, _fields, _attr, _flags) \
1286         _linkage uintptr_t side_event_enable__##_identifier __attribute__((section("side_event_enable"))); \
1287         _linkage struct side_event_description __attribute__((section("side_event_description"))) \
1288                         _identifier = { \
1289                 .enabled = &(side_event_enable__##_identifier), \
1290                 .provider_name = _provider, \
1291                 .event_name = _event, \
1292                 .fields = _fields, \
1293                 .attr = _attr, \
1294                 .callbacks = &side_empty_callback, \
1295                 .flags = (_flags), \
1296                 .version = 0, \
1297                 .loglevel = _loglevel, \
1298                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \
1299                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1300                 .nr_callbacks = 0, \
1301         }; \
1302         static const struct side_event_description *side_event_ptr__##_identifier \
1303                 __attribute__((section("side_event_description_ptr"), used)) = &(_identifier);
1304
1305 #define side_static_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1306         _side_define_event(static, _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1307                         SIDE_PARAM(_attr), 0)
1308
1309 #define side_static_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1310         _side_define_event(static, _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1311                         SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC)
1312
1313 #define side_hidden_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1314         _side_define_event(__attribute__((visibility("hidden"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1315                         SIDE_PARAM(_attr), 0)
1316
1317 #define side_hidden_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1318         _side_define_event(__attribute__((visibility("hidden"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1319                         SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC)
1320
1321 #define side_export_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1322         _side_define_event(__attribute__((visibility("default"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1323                         SIDE_PARAM(_attr), 0)
1324
1325 #define side_export_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1326         _side_define_event(__attribute__((visibility("default"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1327                         SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC)
1328
1329 #define side_declare_event(_identifier) \
1330         extern uintptr_t side_event_enable_##_identifier; \
1331         extern struct side_event_description _identifier
1332
1333 extern const struct side_callback side_empty_callback;
1334
1335 void side_call(const struct side_event_description *desc,
1336         const struct side_arg_vec_description *sav_desc);
1337 void side_call_variadic(const struct side_event_description *desc,
1338         const struct side_arg_vec_description *sav_desc,
1339         const struct side_arg_dynamic_event_struct *var_struct);
1340
1341 int side_tracer_callback_register(struct side_event_description *desc,
1342                 void (*call)(const struct side_event_description *desc,
1343                         const struct side_arg_vec_description *sav_desc,
1344                         void *priv),
1345                 void *priv);
1346 int side_tracer_callback_variadic_register(struct side_event_description *desc,
1347                 void (*call_variadic)(const struct side_event_description *desc,
1348                         const struct side_arg_vec_description *sav_desc,
1349                         const struct side_arg_dynamic_event_struct *var_struct,
1350                         void *priv),
1351                 void *priv);
1352 int side_tracer_callback_unregister(struct side_event_description *desc,
1353                 void (*call)(const struct side_event_description *desc,
1354                         const struct side_arg_vec_description *sav_desc,
1355                         void *priv),
1356                 void *priv);
1357 int side_tracer_callback_variadic_unregister(struct side_event_description *desc,
1358                 void (*call_variadic)(const struct side_event_description *desc,
1359                         const struct side_arg_vec_description *sav_desc,
1360                         const struct side_arg_dynamic_event_struct *var_struct,
1361                         void *priv),
1362                 void *priv);
1363
1364 struct side_events_register_handle *side_events_register(struct side_event_description **events, uint32_t nr_events);
1365 void side_events_unregister(struct side_events_register_handle *handle);
1366
1367 enum side_tracer_notification {
1368         SIDE_TRACER_NOTIFICATION_INSERT_EVENTS,
1369         SIDE_TRACER_NOTIFICATION_REMOVE_EVENTS,
1370 };
1371
1372 /* Callback is invoked with side library internal lock held. */
1373 struct side_tracer_handle *side_tracer_event_notification_register(
1374                 void (*cb)(enum side_tracer_notification notif,
1375                         struct side_event_description **events, uint32_t nr_events, void *priv),
1376                 void *priv);
1377 void side_tracer_event_notification_unregister(struct side_tracer_handle *handle);
1378
1379 void side_init(void);
1380 void side_exit(void);
1381
1382 /*
1383  * These weak symbols, the constructor, and destructor take care of
1384  * registering only _one_ instance of the side instrumentation per
1385  * shared-ojbect (or for the whole main program).
1386  */
1387 extern struct side_event_description * __start_side_event_description_ptr[]
1388         __attribute__((weak, visibility("hidden")));
1389 extern struct side_event_description * __stop_side_event_description_ptr[]
1390         __attribute__((weak, visibility("hidden")));
1391 int side_event_description_ptr_registered
1392         __attribute__((weak, visibility("hidden")));
1393 struct side_events_register_handle *side_events_handle
1394         __attribute__((weak, visibility("hidden")));
1395
1396 static void
1397 side_event_description_ptr_init(void)
1398         __attribute__((no_instrument_function))
1399         __attribute__((constructor));
1400 static void
1401 side_event_description_ptr_init(void)
1402 {
1403         if (side_event_description_ptr_registered++)
1404                 return;
1405         side_events_handle = side_events_register(__start_side_event_description_ptr,
1406                 __stop_side_event_description_ptr - __start_side_event_description_ptr);
1407 }
1408
1409 static void
1410 side_event_description_ptr_exit(void)
1411         __attribute__((no_instrument_function))
1412         __attribute__((destructor));
1413 static void
1414 side_event_description_ptr_exit(void)
1415 {
1416         if (--side_event_description_ptr_registered)
1417                 return;
1418         side_events_unregister(side_events_handle);
1419         side_events_handle = NULL;
1420 }
1421
1422 #endif /* _SIDE_TRACE_H */