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