include/side/trace.h

   1 // SPDX-License-Identifier: MIT
   2 /*
   3  * Copyright 2022 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   4  */
   5
   6 #ifndef _SIDE_TRACE_H
   7 #define _SIDE_TRACE_H
   8
   9 #include <stdint.h>
  10 #include <inttypes.h>
  11 #include <stdlib.h>
  12 #include <stdio.h>
  13 #include <math.h>
  14 #include <side/macros.h>
  15
  16 /* SIDE stands for "Static Instrumentation Dynamically Enabled" */
  17
  18 //TODO: as those structures will be ABI, we need to either consider them
  19 //fixed forever, or think of a scheme that would allow their binary
  20 //representation to be extended if need be.
  21
  22 struct side_arg_vec;
  23 struct side_arg_vec_description;
  24 struct side_arg_dynamic_vec;
  25 struct side_arg_dynamic_vec_vla;
  26 struct side_type_description;
  27 struct side_event_field;
  28 struct side_tracer_visitor_ctx;
  29 struct side_tracer_dynamic_struct_visitor_ctx;
  30 struct side_tracer_dynamic_vla_visitor_ctx;
  31 struct side_event_description;
  32 struct side_arg_dynamic_event_struct;
  33
  34 enum side_type {
  35         /* Basic types */
  36         SIDE_TYPE_BOOL,
  37         SIDE_TYPE_U8,
  38         SIDE_TYPE_U16,
  39         SIDE_TYPE_U32,
  40         SIDE_TYPE_U64,
  41         SIDE_TYPE_S8,
  42         SIDE_TYPE_S16,
  43         SIDE_TYPE_S32,
  44         SIDE_TYPE_S64,
  45         SIDE_TYPE_BLOB,
  46         SIDE_TYPE_FLOAT_BINARY16,
  47         SIDE_TYPE_FLOAT_BINARY32,
  48         SIDE_TYPE_FLOAT_BINARY64,
  49         SIDE_TYPE_FLOAT_BINARY128,
  50         SIDE_TYPE_STRING,
  51
  52         /* Compound types */
  53         SIDE_TYPE_STRUCT,
  54         SIDE_TYPE_ARRAY,
  55         SIDE_TYPE_VLA,
  56         SIDE_TYPE_VLA_VISITOR,
  57
  58         SIDE_TYPE_ARRAY_U8,
  59         SIDE_TYPE_ARRAY_U16,
  60         SIDE_TYPE_ARRAY_U32,
  61         SIDE_TYPE_ARRAY_U64,
  62         SIDE_TYPE_ARRAY_S8,
  63         SIDE_TYPE_ARRAY_S16,
  64         SIDE_TYPE_ARRAY_S32,
  65         SIDE_TYPE_ARRAY_S64,
  66         SIDE_TYPE_ARRAY_BLOB,
  67
  68         SIDE_TYPE_VLA_U8,
  69         SIDE_TYPE_VLA_U16,
  70         SIDE_TYPE_VLA_U32,
  71         SIDE_TYPE_VLA_U64,
  72         SIDE_TYPE_VLA_S8,
  73         SIDE_TYPE_VLA_S16,
  74         SIDE_TYPE_VLA_S32,
  75         SIDE_TYPE_VLA_S64,
  76         SIDE_TYPE_VLA_BLOB,
  77
  78         /* Enumeration types */
  79         SIDE_TYPE_ENUM_U8,
  80         SIDE_TYPE_ENUM_U16,
  81         SIDE_TYPE_ENUM_U32,
  82         SIDE_TYPE_ENUM_U64,
  83         SIDE_TYPE_ENUM_S8,
  84         SIDE_TYPE_ENUM_S16,
  85         SIDE_TYPE_ENUM_S32,
  86         SIDE_TYPE_ENUM_S64,
  87
  88         SIDE_TYPE_ENUM_BITMAP8,
  89         SIDE_TYPE_ENUM_BITMAP16,
  90         SIDE_TYPE_ENUM_BITMAP32,
  91         SIDE_TYPE_ENUM_BITMAP64,
  92
  93         SIDE_TYPE_ENUM_BITMAP_ARRAY,
  94         SIDE_TYPE_ENUM_BITMAP_VLA,
  95
  96         /* Dynamic type */
  97         SIDE_TYPE_DYNAMIC,
  98 };
  99
 100 enum side_dynamic_type {
 101         /* Basic types */
 102         SIDE_DYNAMIC_TYPE_NULL,
 103         SIDE_DYNAMIC_TYPE_BOOL,
 104         SIDE_DYNAMIC_TYPE_U8,
 105         SIDE_DYNAMIC_TYPE_U16,
 106         SIDE_DYNAMIC_TYPE_U32,
 107         SIDE_DYNAMIC_TYPE_U64,
 108         SIDE_DYNAMIC_TYPE_S8,
 109         SIDE_DYNAMIC_TYPE_S16,
 110         SIDE_DYNAMIC_TYPE_S32,
 111         SIDE_DYNAMIC_TYPE_S64,
 112         SIDE_DYNAMIC_TYPE_BLOB,
 113         SIDE_DYNAMIC_TYPE_FLOAT_BINARY16,
 114         SIDE_DYNAMIC_TYPE_FLOAT_BINARY32,
 115         SIDE_DYNAMIC_TYPE_FLOAT_BINARY64,
 116         SIDE_DYNAMIC_TYPE_FLOAT_BINARY128,
 117         SIDE_DYNAMIC_TYPE_STRING,
 118
 119         /* Compound types */
 120         SIDE_DYNAMIC_TYPE_STRUCT,
 121         SIDE_DYNAMIC_TYPE_STRUCT_VISITOR,
 122         SIDE_DYNAMIC_TYPE_VLA,
 123         SIDE_DYNAMIC_TYPE_VLA_VISITOR,
 124 };
 125
 126 enum side_attr_type {
 127         SIDE_ATTR_TYPE_BOOL,
 128         SIDE_ATTR_TYPE_U8,
 129         SIDE_ATTR_TYPE_U16,
 130         SIDE_ATTR_TYPE_U32,
 131         SIDE_ATTR_TYPE_U64,
 132         SIDE_ATTR_TYPE_S8,
 133         SIDE_ATTR_TYPE_S16,
 134         SIDE_ATTR_TYPE_S32,
 135         SIDE_ATTR_TYPE_S64,
 136         SIDE_ATTR_TYPE_FLOAT_BINARY16,
 137         SIDE_ATTR_TYPE_FLOAT_BINARY32,
 138         SIDE_ATTR_TYPE_FLOAT_BINARY64,
 139         SIDE_ATTR_TYPE_FLOAT_BINARY128,
 140         SIDE_ATTR_TYPE_STRING,
 141 };
 142
 143 enum side_loglevel {
 144         SIDE_LOGLEVEL_EMERG = 0,
 145         SIDE_LOGLEVEL_ALERT = 1,
 146         SIDE_LOGLEVEL_CRIT = 2,
 147         SIDE_LOGLEVEL_ERR = 3,
 148         SIDE_LOGLEVEL_WARNING = 4,
 149         SIDE_LOGLEVEL_NOTICE = 5,
 150         SIDE_LOGLEVEL_INFO = 6,
 151         SIDE_LOGLEVEL_DEBUG = 7,
 152 };
 153
 154 enum side_visitor_status {
 155         SIDE_VISITOR_STATUS_OK = 0,
 156         SIDE_VISITOR_STATUS_ERROR = -1,
 157 };
 158
 159 typedef enum side_visitor_status (*side_visitor)(
 160                 const struct side_tracer_visitor_ctx *tracer_ctx,
 161                 void *app_ctx);
 162 typedef enum side_visitor_status (*side_dynamic_struct_visitor)(
 163                 const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
 164                 void *app_ctx);
 165 typedef enum side_visitor_status (*side_dynamic_vla_visitor)(
 166                 const struct side_tracer_dynamic_vla_visitor_ctx *tracer_ctx,
 167                 void *app_ctx);
 168
 169 struct side_attr_value {
 170         uint32_t type;  /* enum side_attr_type */
 171         union {
 172                 uint8_t side_bool;
 173                 uint8_t side_u8;
 174                 uint16_t side_u16;
 175                 uint32_t side_u32;
 176                 uint64_t side_u64;
 177                 int8_t side_s8;
 178                 int16_t side_s16;
 179                 int32_t side_s32;
 180                 int64_t side_s64;
 181 #if __HAVE_FLOAT16
 182                 _Float16 side_float_binary16;
 183 #endif
 184 #if __HAVE_FLOAT32
 185                 _Float32 side_float_binary32;
 186 #endif
 187 #if __HAVE_FLOAT64
 188                 _Float64 side_float_binary64;
 189 #endif
 190 #if __HAVE_FLOAT128
 191                 _Float128 side_float_binary128;
 192 #endif
 193                 const char *string;
 194         } u;
 195 };
 196
 197 /* User attributes. */
 198 struct side_attr {
 199         const char *key;
 200         const struct side_attr_value value;
 201 };
 202
 203 struct side_enum_mapping {
 204         int64_t range_begin;
 205         int64_t range_end;
 206         const char *label;
 207 };
 208
 209 struct side_enum_mappings {
 210         const struct side_enum_mapping *mappings;
 211         const struct side_attr *attr;
 212         uint32_t nr_mappings;
 213         uint32_t nr_attr;
 214 };
 215
 216 struct side_enum_bitmap_mapping {
 217         int64_t range_begin;
 218         int64_t range_end;
 219         const char *label;
 220 };
 221
 222 struct side_enum_bitmap_mappings {
 223         const struct side_enum_bitmap_mapping *mappings;
 224         const struct side_attr *attr;
 225         uint32_t nr_mappings;
 226         uint32_t nr_attr;
 227 };
 228
 229 struct side_type_struct {
 230         uint32_t nr_fields;
 231         uint32_t nr_attr;
 232         const struct side_event_field *fields;
 233         const struct side_attr *attr;
 234 };
 235
 236 struct side_type_description {
 237         uint32_t type;  /* enum side_type */
 238         union {
 239                 /* Basic types */
 240                 struct {
 241                         const struct side_attr *attr;
 242                         uint32_t nr_attr;
 243                 } side_basic;
 244
 245                 /* Compound types */
 246                 struct {
 247                         const struct side_type_description *elem_type;
 248                         const struct side_attr *attr;
 249                         uint32_t length;
 250                         uint32_t nr_attr;
 251                 } side_array;
 252                 struct {
 253                         const struct side_type_description *elem_type;
 254                         const struct side_attr *attr;
 255                         uint32_t nr_attr;
 256                 } side_vla;
 257                 struct {
 258                         const struct side_type_description *elem_type;
 259                         side_visitor visitor;
 260                         const struct side_attr *attr;
 261                         uint32_t nr_attr;
 262                 } side_vla_visitor;
 263                 const struct side_type_struct *side_struct;
 264
 265                 /* Enumeration types */
 266                 const struct side_enum_mappings *side_enum_mappings;
 267                 const struct side_enum_bitmap_mappings *side_enum_bitmap_mappings;
 268                 struct {
 269                         const struct side_type_description *elem_type;
 270                         const struct side_enum_bitmap_mappings *mappings;
 271                         uint32_t length;
 272                 } side_enum_bitmap_array;
 273                 struct {
 274                         const struct side_type_description *elem_type;
 275                         const struct side_enum_bitmap_mappings *mappings;
 276                 } side_enum_bitmap_vla;
 277         } u;
 278 };
 279
 280 struct side_event_field {
 281         const char *field_name;
 282         struct side_type_description side_type;
 283 };
 284
 285 enum side_event_flags {
 286         SIDE_EVENT_FLAG_VARIADIC = (1 << 0),
 287 };
 288
 289 struct side_callback {
 290         union {
 291                 void (*call)(const struct side_event_description *desc,
 292                         const struct side_arg_vec_description *sav_desc,
 293                         void *priv);
 294                 void (*call_variadic)(const struct side_event_description *desc,
 295                         const struct side_arg_vec_description *sav_desc,
 296                         const struct side_arg_dynamic_event_struct *var_struct,
 297                         void *priv);
 298         } u;
 299         void *priv;
 300 };
 301
 302 struct side_callbacks {
 303         struct side_callback *cb;
 304         uint32_t nr_cb;
 305 };
 306
 307 struct side_event_description {
 308         uint32_t version;
 309         uint32_t *enabled;
 310         uint32_t loglevel;      /* enum side_loglevel */
 311         uint32_t nr_fields;
 312         uint32_t nr_attr;
 313         uint32_t _unused;
 314         uint64_t flags;
 315         const char *provider_name;
 316         const char *event_name;
 317         const struct side_event_field *fields;
 318         const struct side_attr *attr;
 319         struct side_callbacks *callbacks;
 320 };
 321
 322 struct side_arg_dynamic_vec {
 323         uint32_t dynamic_type;  /* enum side_dynamic_type */
 324         union {
 325                 /* Basic types */
 326                 struct {
 327                         const struct side_attr *attr;
 328                         uint32_t nr_attr;
 329                         union {
 330                                 uint8_t side_bool;
 331                                 uint8_t side_u8;
 332                                 uint16_t side_u16;
 333                                 uint32_t side_u32;
 334                                 uint64_t side_u64;
 335                                 int8_t side_s8;
 336                                 int16_t side_s16;
 337                                 int32_t side_s32;
 338                                 int64_t side_s64;
 339                                 uint8_t side_blob;
 340 #if __HAVE_FLOAT16
 341                                 _Float16 side_float_binary16;
 342 #endif
 343 #if __HAVE_FLOAT32
 344                                 _Float32 side_float_binary32;
 345 #endif
 346 #if __HAVE_FLOAT64
 347                                 _Float64 side_float_binary64;
 348 #endif
 349 #if __HAVE_FLOAT128
 350                                 _Float128 side_float_binary128;
 351 #endif
 352                                 const char *string;
 353                         } u;
 354                 } side_basic;
 355
 356                 /* Compound types */
 357                 const struct side_arg_dynamic_event_struct *side_dynamic_struct;
 358                 struct {
 359                         void *app_ctx;
 360                         side_dynamic_struct_visitor visitor;
 361                         const struct side_attr *attr;
 362                         uint32_t nr_attr;
 363                 } side_dynamic_struct_visitor;
 364                 const struct side_arg_dynamic_vec_vla *side_dynamic_vla;
 365                 struct {
 366                         void *app_ctx;
 367                         side_dynamic_vla_visitor visitor;
 368                         const struct side_attr *attr;
 369                         uint32_t nr_attr;
 370                 } side_dynamic_vla_visitor;
 371         } u;
 372 };
 373
 374 struct side_arg_dynamic_vec_vla {
 375         const struct side_arg_dynamic_vec *sav;
 376         const struct side_attr *attr;
 377         uint32_t len;
 378         uint32_t nr_attr;
 379 };
 380
 381 struct side_arg_dynamic_event_field {
 382         const char *field_name;
 383         const struct side_arg_dynamic_vec elem;
 384 };
 385
 386 struct side_arg_dynamic_event_struct {
 387         const struct side_arg_dynamic_event_field *fields;
 388         const struct side_attr *attr;
 389         uint32_t len;
 390         uint32_t nr_attr;
 391 };
 392
 393 struct side_arg_vec {
 394         enum side_type type;
 395         union {
 396                 /* Basic types */
 397                 uint8_t side_bool;
 398                 uint8_t side_u8;
 399                 uint16_t side_u16;
 400                 uint32_t side_u32;
 401                 uint64_t side_u64;
 402                 int8_t side_s8;
 403                 int16_t side_s16;
 404                 int32_t side_s32;
 405                 int64_t side_s64;
 406                 uint8_t side_blob;
 407 #if __HAVE_FLOAT16
 408                 _Float16 side_float_binary16;
 409 #endif
 410 #if __HAVE_FLOAT32
 411                 _Float32 side_float_binary32;
 412 #endif
 413 #if __HAVE_FLOAT64
 414                 _Float64 side_float_binary64;
 415 #endif
 416 #if __HAVE_FLOAT128
 417                 _Float128 side_float_binary128;
 418 #endif
 419                 const char *string;
 420
 421                 /* Compound types */
 422                 const struct side_arg_vec_description *side_struct;
 423                 const struct side_arg_vec_description *side_array;
 424                 const struct side_arg_vec_description *side_vla;
 425                 void *side_vla_app_visitor_ctx;
 426                 void *side_array_fixint;
 427                 struct {
 428                         void *p;
 429                         uint32_t length;
 430                 } side_vla_fixint;
 431
 432                 /* Dynamic type */
 433                 struct side_arg_dynamic_vec dynamic;
 434         } u;
 435 };
 436
 437 struct side_arg_vec_description {
 438         const struct side_arg_vec *sav;
 439         uint32_t len;
 440 };
 441
 442 /* The visitor pattern is a double-dispatch visitor. */
 443 struct side_tracer_visitor_ctx {
 444         enum side_visitor_status (*write_elem)(
 445                         const struct side_tracer_visitor_ctx *tracer_ctx,
 446                         const struct side_arg_vec *elem);
 447         void *priv;             /* Private tracer context. */
 448 };
 449
 450 struct side_tracer_dynamic_struct_visitor_ctx {
 451         enum side_visitor_status (*write_field)(
 452                         const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
 453                         const struct side_arg_dynamic_event_field *dynamic_field);
 454         void *priv;             /* Private tracer context. */
 455 };
 456
 457 struct side_tracer_dynamic_vla_visitor_ctx {
 458         enum side_visitor_status (*write_elem)(
 459                         const struct side_tracer_dynamic_vla_visitor_ctx *tracer_ctx,
 460                         const struct side_arg_dynamic_vec *elem);
 461         void *priv;             /* Private tracer context. */
 462 };
 463
 464 /* Event and type attributes */
 465
 466 #define side_attr(_key, _value) \
 467         { \
 468                 .key = _key, \
 469                 .value = SIDE_PARAM(_value), \
 470         }
 471
 472 #define side_attr_list(...) \
 473         SIDE_COMPOUND_LITERAL(const struct side_attr, __VA_ARGS__)
 474
 475 #define side_attr_bool(_val)            { .type = SIDE_ATTR_TYPE_BOOL, .u = { .side_bool = !!(_val) } }
 476 #define side_attr_u8(_val)              { .type = SIDE_ATTR_TYPE_U8, .u = { .side_u8 = (_val) } }
 477 #define side_attr_u16(_val)             { .type = SIDE_ATTR_TYPE_U16, .u = { .side_u16 = (_val) } }
 478 #define side_attr_u32(_val)             { .type = SIDE_ATTR_TYPE_U32, .u = { .side_u32 = (_val) } }
 479 #define side_attr_u64(_val)             { .type = SIDE_ATTR_TYPE_U64, .u = { .side_u64 = (_val) } }
 480 #define side_attr_s8(_val)              { .type = SIDE_ATTR_TYPE_S8, .u = { .side_s8 = (_val) } }
 481 #define side_attr_s16(_val)             { .type = SIDE_ATTR_TYPE_S16, .u = { .side_s16 = (_val) } }
 482 #define side_attr_s32(_val)             { .type = SIDE_ATTR_TYPE_S32, .u = { .side_s32 = (_val) } }
 483 #define side_attr_s64(_val)             { .type = SIDE_ATTR_TYPE_S64, .u = { .side_s64 = (_val) } }
 484 #define side_attr_float_binary16(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY16, .u = { .side_float_binary16 = (_val) } }
 485 #define side_attr_float_binary32(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY32, .u = { .side_float_binary32 = (_val) } }
 486 #define side_attr_float_binary64(_val)  { .type = SIDE_ATTR_TYPE_FLOAT_BINARY64, .u = { .side_float_binary64 = (_val) } }
 487 #define side_attr_float_binary128(_val) { .type = SIDE_ATTR_TYPE_FLOAT_BINARY128, .u = { .side_float_binary128 = (_val) } }
 488 #define side_attr_string(_val)          { .type = SIDE_ATTR_TYPE_STRING, .u = { .string = (_val) } }
 489
 490 /* Static field definition */
 491
 492 #define _side_type_basic(_type, _attr) \
 493         { \
 494                 .type = _type, \
 495                 .u = { \
 496                         .side_basic = { \
 497                                 .attr = _attr, \
 498                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 499                         }, \
 500                 }, \
 501         }
 502
 503 #define side_type_bool(_attr)                           _side_type_basic(SIDE_TYPE_BOOL, SIDE_PARAM(_attr))
 504 #define side_type_u8(_attr)                             _side_type_basic(SIDE_TYPE_U8, SIDE_PARAM(_attr))
 505 #define side_type_u16(_attr)                            _side_type_basic(SIDE_TYPE_U16, SIDE_PARAM(_attr))
 506 #define side_type_u32(_attr)                            _side_type_basic(SIDE_TYPE_U32, SIDE_PARAM(_attr))
 507 #define side_type_u64(_attr)                            _side_type_basic(SIDE_TYPE_U64, SIDE_PARAM(_attr))
 508 #define side_type_s8(_attr)                             _side_type_basic(SIDE_TYPE_S8, SIDE_PARAM(_attr))
 509 #define side_type_s16(_attr)                            _side_type_basic(SIDE_TYPE_S16, SIDE_PARAM(_attr))
 510 #define side_type_s32(_attr)                            _side_type_basic(SIDE_TYPE_S32, SIDE_PARAM(_attr))
 511 #define side_type_s64(_attr)                            _side_type_basic(SIDE_TYPE_S64, SIDE_PARAM(_attr))
 512 #define side_type_blob(_attr)                           _side_type_basic(SIDE_TYPE_BLOB, SIDE_PARAM(_attr))
 513 #define side_type_float_binary16(_attr)                 _side_type_basic(SIDE_TYPE_FLOAT_BINARY16, SIDE_PARAM(_attr))
 514 #define side_type_float_binary32(_attr)                 _side_type_basic(SIDE_TYPE_FLOAT_BINARY32, SIDE_PARAM(_attr))
 515 #define side_type_float_binary64(_attr)                 _side_type_basic(SIDE_TYPE_FLOAT_BINARY64, SIDE_PARAM(_attr))
 516 #define side_type_float_binary128(_attr)                _side_type_basic(SIDE_TYPE_FLOAT_BINARY128, SIDE_PARAM(_attr))
 517 #define side_type_string(_attr)                         _side_type_basic(SIDE_TYPE_STRING, SIDE_PARAM(_attr))
 518 #define side_type_dynamic(_attr)                        _side_type_basic(SIDE_TYPE_DYNAMIC, SIDE_PARAM(_attr))
 519
 520 #define _side_field(_name, _type) \
 521         { \
 522                 .field_name = _name, \
 523                 .side_type = _type, \
 524         }
 525
 526 #define side_field_bool(_name, _attr)                   _side_field(_name, side_type_bool(SIDE_PARAM(_attr)))
 527 #define side_field_u8(_name, _attr)                     _side_field(_name, side_type_u8(SIDE_PARAM(_attr)))
 528 #define side_field_u16(_name, _attr)                    _side_field(_name, side_type_u16(SIDE_PARAM(_attr)))
 529 #define side_field_u32(_name, _attr)                    _side_field(_name, side_type_u32(SIDE_PARAM(_attr)))
 530 #define side_field_u64(_name, _attr)                    _side_field(_name, side_type_u64(SIDE_PARAM(_attr)))
 531 #define side_field_s8(_name, _attr)                     _side_field(_name, side_type_s8(SIDE_PARAM(_attr)))
 532 #define side_field_s16(_name, _attr)                    _side_field(_name, side_type_s16(SIDE_PARAM(_attr)))
 533 #define side_field_s32(_name, _attr)                    _side_field(_name, side_type_s32(SIDE_PARAM(_attr)))
 534 #define side_field_s64(_name, _attr)                    _side_field(_name, side_type_s64(SIDE_PARAM(_attr)))
 535 #define side_field_blob(_name, _attr)                   _side_field(_name, side_type_blob(SIDE_PARAM(_attr)))
 536 #define side_field_float_binary16(_name, _attr)         _side_field(_name, side_type_float_binary16(SIDE_PARAM(_attr)))
 537 #define side_field_float_binary32(_name, _attr)         _side_field(_name, side_type_float_binary32(SIDE_PARAM(_attr)))
 538 #define side_field_float_binary64(_name, _attr)         _side_field(_name, side_type_float_binary64(SIDE_PARAM(_attr)))
 539 #define side_field_float_binary128(_name, _attr)        _side_field(_name, side_type_float_binary128(SIDE_PARAM(_attr)))
 540 #define side_field_string(_name, _attr)                 _side_field(_name, side_type_string(SIDE_PARAM(_attr)))
 541 #define side_field_dynamic(_name, _attr)                _side_field(_name, side_type_dynamic(SIDE_PARAM(_attr)))
 542
 543 #define side_type_enum(_type, _mappings) \
 544         { \
 545                 .type = _type, \
 546                 .u = { \
 547                         .side_enum_mappings = _mappings, \
 548                 }, \
 549         }
 550 #define _side_field_enum(_name, _type, _mappings) \
 551         _side_field(_name, side_type_enum(_type, SIDE_PARAM(_mappings)))
 552
 553 #define side_field_enum_u8(_name, _mappings) \
 554         _side_field_enum(_name, SIDE_TYPE_ENUM_U8, SIDE_PARAM(_mappings))
 555 #define side_field_enum_u16(_name, _mappings) \
 556         _side_field_enum(_name, SIDE_TYPE_ENUM_U16, SIDE_PARAM(_mappings))
 557 #define side_field_enum_u32(_name, _mappings) \
 558         _side_field_enum(_name, SIDE_TYPE_ENUM_U32, SIDE_PARAM(_mappings))
 559 #define side_field_enum_u64(_name, _mappings) \
 560         _side_field_enum(_name, SIDE_TYPE_ENUM_U64, SIDE_PARAM(_mappings))
 561 #define side_field_enum_s8(_name, _mappings) \
 562         _side_field_enum(_name, SIDE_TYPE_ENUM_S8, SIDE_PARAM(_mappings))
 563 #define side_field_enum_s16(_name, _mappings) \
 564         _side_field_enum(_name, SIDE_TYPE_ENUM_S16, SIDE_PARAM(_mappings))
 565 #define side_field_enum_s32(_name, _mappings) \
 566         _side_field_enum(_name, SIDE_TYPE_ENUM_S32, SIDE_PARAM(_mappings))
 567 #define side_field_enum_s64(_name, _mappings) \
 568         _side_field_enum(_name, SIDE_TYPE_ENUM_S64, SIDE_PARAM(_mappings))
 569
 570 #define side_type_enum_bitmap(_type, _mappings) \
 571         { \
 572                 .type = _type, \
 573                 .u = { \
 574                         .side_enum_bitmap_mappings = _mappings, \
 575                 }, \
 576         }
 577 #define side_type_enum_bitmap8(_mappings) \
 578         side_type_enum_bitmap(SIDE_TYPE_ENUM_BITMAP8, SIDE_PARAM(_mappings))
 579 #define side_type_enum_bitmap16(_mappings) \
 580         side_type_enum_bitmap(SIDE_TYPE_ENUM_BITMAP16, SIDE_PARAM(_mappings))
 581 #define side_type_enum_bitmap32(_mappings) \
 582         side_type_enum_bitmap(SIDE_TYPE_ENUM_BITMAP32, SIDE_PARAM(_mappings))
 583 #define side_type_enum_bitmap64(_mappings) \
 584         side_type_enum_bitmap(SIDE_TYPE_ENUM_BITMAP64, SIDE_PARAM(_mappings))
 585
 586 #define _side_field_enum_bitmap(_name, _type)   _side_field(_name, SIDE_PARAM(_type))
 587
 588 #define side_field_enum_bitmap8(_name, _mappings) \
 589         _side_field_enum_bitmap(_name, side_type_enum_bitmap8(SIDE_PARAM(_mappings)))
 590 #define side_field_enum_bitmap16(_name, _mappings) \
 591         _side_field_enum_bitmap(_name, side_type_enum_bitmap16(SIDE_PARAM(_mappings)))
 592 #define side_field_enum_bitmap32(_name, _mappings) \
 593         _side_field_enum_bitmap(_name, side_type_enum_bitmap32(SIDE_PARAM(_mappings)))
 594 #define side_field_enum_bitmap64(_name, _mappings) \
 595         _side_field_enum_bitmap(_name, side_type_enum_bitmap64(SIDE_PARAM(_mappings)))
 596
 597 #define side_type_enum_bitmap_array(_mappings, _elem_type, _length) \
 598         { \
 599                 .type = SIDE_TYPE_ENUM_BITMAP_ARRAY, \
 600                 .u = { \
 601                         .side_enum_bitmap_array = { \
 602                                 .elem_type = _elem_type, \
 603                                 .mappings = _mappings, \
 604                                 .length = _length, \
 605                         }, \
 606                 }, \
 607         }
 608 #define side_field_enum_bitmap_array(_name, _mappings, _elem_type, _length) \
 609         _side_field(_name, side_type_enum_bitmap_array(SIDE_PARAM(_mappings), SIDE_PARAM(_elem_type), _length))
 610
 611 #define side_type_enum_bitmap_vla(_mappings, _elem_type) \
 612         { \
 613                 .type = SIDE_TYPE_ENUM_BITMAP_VLA, \
 614                 .u = { \
 615                         .side_enum_bitmap_vla = { \
 616                                 .elem_type = _elem_type, \
 617                                 .mappings = _mappings, \
 618                         }, \
 619                 }, \
 620         }
 621 #define side_field_enum_bitmap_vla(_name, _mappings, _elem_type) \
 622         _side_field(_name, side_type_enum_bitmap_vla(SIDE_PARAM(_mappings), SIDE_PARAM(_elem_type)))
 623
 624 #define side_type_struct(_struct) \
 625         { \
 626                 .type = SIDE_TYPE_STRUCT, \
 627                 .u = { \
 628                         .side_struct = _struct, \
 629                 }, \
 630         }
 631 #define side_field_struct(_name, _struct) \
 632         _side_field(_name, side_type_struct(SIDE_PARAM(_struct)))
 633
 634 #define _side_type_struct_define(_fields, _attr) \
 635         { \
 636                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \
 637                 .nr_attr  = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 638                 .fields = _fields, \
 639                 .attr = _attr, \
 640         }
 641
 642 #define side_define_struct(_identifier, _fields, _attr) \
 643         const struct side_type_struct _identifier = _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr))
 644
 645 #define side_struct_literal(_fields, _attr) \
 646         SIDE_COMPOUND_LITERAL(const struct side_type_struct, \
 647                 _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr)))
 648
 649 #define side_type_array(_elem_type, _length, _attr) \
 650         { \
 651                 .type = SIDE_TYPE_ARRAY, \
 652                 .u = { \
 653                         .side_array = { \
 654                                 .elem_type = _elem_type, \
 655                                 .attr = _attr, \
 656                                 .length = _length, \
 657                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 658                         }, \
 659                 }, \
 660         }
 661 #define side_field_array(_name, _elem_type, _length, _attr) \
 662         _side_field(_name, side_type_array(SIDE_PARAM(_elem_type), _length, SIDE_PARAM(_attr)))
 663
 664 #define side_type_vla(_elem_type, _attr) \
 665         { \
 666                 .type = SIDE_TYPE_VLA, \
 667                 .u = { \
 668                         .side_vla = { \
 669                                 .elem_type = _elem_type, \
 670                                 .attr = _attr, \
 671                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 672                         }, \
 673                 }, \
 674         }
 675 #define side_field_vla(_name, _elem_type, _attr) \
 676         _side_field(_name, side_type_vla(SIDE_PARAM(_elem_type), SIDE_PARAM(_attr)))
 677
 678 #define side_type_vla_visitor(_elem_type, _visitor, _attr) \
 679         { \
 680                 .type = SIDE_TYPE_VLA_VISITOR, \
 681                 .u = { \
 682                         .side_vla_visitor = { \
 683                                 .elem_type = SIDE_PARAM(_elem_type), \
 684                                 .visitor = _visitor, \
 685                                 .attr = _attr, \
 686                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 687                         }, \
 688                 }, \
 689         }
 690 #define side_field_vla_visitor(_name, _elem_type, _visitor, _attr) \
 691         _side_field(_name, side_type_vla_visitor(SIDE_PARAM(_elem_type), _visitor, SIDE_PARAM(_attr)))
 692
 693 #define side_elem(...) \
 694         SIDE_COMPOUND_LITERAL(const struct side_type_description, __VA_ARGS__)
 695
 696 #define side_field_list(...) \
 697         SIDE_COMPOUND_LITERAL(const struct side_event_field, __VA_ARGS__)
 698
 699 /* Static field arguments */
 700
 701 #define side_arg_bool(_val)             { .type = SIDE_TYPE_BOOL, .u = { .side_bool = !!(_val) } }
 702 #define side_arg_u8(_val)               { .type = SIDE_TYPE_U8, .u = { .side_u8 = (_val) } }
 703 #define side_arg_u16(_val)              { .type = SIDE_TYPE_U16, .u = { .side_u16 = (_val) } }
 704 #define side_arg_u32(_val)              { .type = SIDE_TYPE_U32, .u = { .side_u32 = (_val) } }
 705 #define side_arg_u64(_val)              { .type = SIDE_TYPE_U64, .u = { .side_u64 = (_val) } }
 706 #define side_arg_s8(_val)               { .type = SIDE_TYPE_S8, .u = { .side_s8 = (_val) } }
 707 #define side_arg_s16(_val)              { .type = SIDE_TYPE_S16, .u = { .side_s16 = (_val) } }
 708 #define side_arg_s32(_val)              { .type = SIDE_TYPE_S32, .u = { .side_s32 = (_val) } }
 709 #define side_arg_s64(_val)              { .type = SIDE_TYPE_S64, .u = { .side_s64 = (_val) } }
 710 #define side_arg_blob(_val)             { .type = SIDE_TYPE_BLOB, .u = { .side_blob = (_val) } }
 711 #define side_arg_enum_u8(_val)          { .type = SIDE_TYPE_ENUM_U8, .u = { .side_u8 = (_val) } }
 712 #define side_arg_enum_u16(_val)         { .type = SIDE_TYPE_ENUM_U16, .u = { .side_u16 = (_val) } }
 713 #define side_arg_enum_u32(_val)         { .type = SIDE_TYPE_ENUM_U32, .u = { .side_u32 = (_val) } }
 714 #define side_arg_enum_u64(_val)         { .type = SIDE_TYPE_ENUM_U64, .u = { .side_u64 = (_val) } }
 715 #define side_arg_enum_s8(_val)          { .type = SIDE_TYPE_ENUM_S8, .u = { .side_s8 = (_val) } }
 716 #define side_arg_enum_s16(_val)         { .type = SIDE_TYPE_ENUM_S16, .u = { .side_s16 = (_val) } }
 717 #define side_arg_enum_s32(_val)         { .type = SIDE_TYPE_ENUM_S32, .u = { .side_s32 = (_val) } }
 718 #define side_arg_enum_s64(_val)         { .type = SIDE_TYPE_ENUM_S64, .u = { .side_s64 = (_val) } }
 719 #define side_arg_enum_bitmap8(_val)     { .type = SIDE_TYPE_ENUM_BITMAP8, .u = { .side_u8 = (_val) } }
 720 #define side_arg_enum_bitmap16(_val)    { .type = SIDE_TYPE_ENUM_BITMAP16, .u = { .side_u16 = (_val) } }
 721 #define side_arg_enum_bitmap32(_val)    { .type = SIDE_TYPE_ENUM_BITMAP32, .u = { .side_u32 = (_val) } }
 722 #define side_arg_enum_bitmap64(_val)    { .type = SIDE_TYPE_ENUM_BITMAP64, .u = { .side_u64 = (_val) } }
 723 #define side_arg_enum_bitmap_array(_side_type)  { .type = SIDE_TYPE_ENUM_BITMAP_ARRAY, .u = { .side_array = (_side_type) } }
 724 #define side_arg_enum_bitmap_vla(_side_type)    { .type = SIDE_TYPE_ENUM_BITMAP_VLA, .u = { .side_vla = (_side_type) } }
 725 #define side_arg_float_binary16(_val)   { .type = SIDE_TYPE_FLOAT_BINARY16, .u = { .side_float_binary16 = (_val) } }
 726 #define side_arg_float_binary32(_val)   { .type = SIDE_TYPE_FLOAT_BINARY32, .u = { .side_float_binary32 = (_val) } }
 727 #define side_arg_float_binary64(_val)   { .type = SIDE_TYPE_FLOAT_BINARY64, .u = { .side_float_binary64 = (_val) } }
 728 #define side_arg_float_binary128(_val)  { .type = SIDE_TYPE_FLOAT_BINARY128, .u = { .side_float_binary128 = (_val) } }
 729
 730 #define side_arg_string(_val)           { .type = SIDE_TYPE_STRING, .u = { .string = (_val) } }
 731 #define side_arg_struct(_side_type)     { .type = SIDE_TYPE_STRUCT, .u = { .side_struct = (_side_type) } }
 732 #define side_arg_array(_side_type)      { .type = SIDE_TYPE_ARRAY, .u = { .side_array = (_side_type) } }
 733 #define side_arg_vla(_side_type)        { .type = SIDE_TYPE_VLA, .u = { .side_vla = (_side_type) } }
 734 #define side_arg_vla_visitor(_ctx)      { .type = SIDE_TYPE_VLA_VISITOR, .u = { .side_vla_app_visitor_ctx = (_ctx) } }
 735
 736 #define side_arg_array_u8(_ptr)         { .type = SIDE_TYPE_ARRAY_U8, .u = { .side_array_fixint = (_ptr) } }
 737 #define side_arg_array_u16(_ptr)        { .type = SIDE_TYPE_ARRAY_U16, .u = { .side_array_fixint = (_ptr) } }
 738 #define side_arg_array_u32(_ptr)        { .type = SIDE_TYPE_ARRAY_U32, .u = { .side_array_fixint = (_ptr) } }
 739 #define side_arg_array_u64(_ptr)        { .type = SIDE_TYPE_ARRAY_U64, .u = { .side_array_fixint = (_ptr) } }
 740 #define side_arg_array_s8(_ptr)         { .type = SIDE_TYPE_ARRAY_S8, .u = { .side_array_fixint = (_ptr) } }
 741 #define side_arg_array_s16(_ptr)        { .type = SIDE_TYPE_ARRAY_S16, .u = { .side_array_fixint  = (_ptr) } }
 742 #define side_arg_array_s32(_ptr)        { .type = SIDE_TYPE_ARRAY_S32, .u = { .side_array_fixint = (_ptr) } }
 743 #define side_arg_array_s64(_ptr)        { .type = SIDE_TYPE_ARRAY_S64, .u = { .side_array_fixint = (_ptr) } }
 744 #define side_arg_array_blob(_ptr)       { .type = SIDE_TYPE_ARRAY_BLOB, .u = { .side_array_fixint = (_ptr) } }
 745
 746 #define side_arg_vla_u8(_ptr, _length)  { .type = SIDE_TYPE_VLA_U8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } }
 747 #define side_arg_vla_u16(_ptr, _length) { .type = SIDE_TYPE_VLA_U16, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 748 #define side_arg_vla_u32(_ptr, _length) { .type = SIDE_TYPE_VLA_U32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 749 #define side_arg_vla_u64(_ptr, _length) { .type = SIDE_TYPE_VLA_U64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 750 #define side_arg_vla_s8(_ptr, _length)  { .type = SIDE_TYPE_VLA_S8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 751 #define side_arg_vla_s16(_ptr, _length) { .type = SIDE_TYPE_VLA_S16, .u = { .side_vla_fixint  = { .p = (_ptr), .length = (_length) } } }
 752 #define side_arg_vla_s32(_ptr, _length) { .type = SIDE_TYPE_VLA_S32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 753 #define side_arg_vla_s64(_ptr, _length) { .type = SIDE_TYPE_VLA_S64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 754 #define side_arg_vla_blob(_ptr, _length) { .type = SIDE_TYPE_VLA_BLOB, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } }
 755
 756 #define side_arg_dynamic(_dynamic_arg_type) \
 757         { \
 758                 .type = SIDE_TYPE_DYNAMIC, \
 759                 .u = { \
 760                         .dynamic = _dynamic_arg_type, \
 761                 }, \
 762         }
 763
 764 /* Dynamic field arguments */
 765
 766 #define side_arg_dynamic_null(_attr) \
 767         { \
 768                 .dynamic_type = SIDE_DYNAMIC_TYPE_NULL, \
 769                 .u = { \
 770                         .side_basic = { \
 771                                 .attr = _attr, \
 772                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 773                         }, \
 774                 }, \
 775         }
 776
 777 #define side_arg_dynamic_bool(_val, _attr) \
 778         { \
 779                 .dynamic_type = SIDE_DYNAMIC_TYPE_BOOL, \
 780                 .u = { \
 781                         .side_basic = { \
 782                                 .attr = _attr, \
 783                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 784                                 .u = { \
 785                                         .side_bool = !!(_val), \
 786                                 }, \
 787                         }, \
 788                 }, \
 789         }
 790
 791 #define side_arg_dynamic_u8(_val, _attr) \
 792         { \
 793                 .dynamic_type = SIDE_DYNAMIC_TYPE_U8, \
 794                 .u = { \
 795                         .side_basic = { \
 796                                 .attr = _attr, \
 797                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 798                                 .u = { \
 799                                         .side_u8 = (_val), \
 800                                 }, \
 801                         }, \
 802                 }, \
 803         }
 804 #define side_arg_dynamic_u16(_val, _attr) \
 805         { \
 806                 .dynamic_type = SIDE_DYNAMIC_TYPE_U16, \
 807                 .u = { \
 808                         .side_basic = { \
 809                                 .attr = _attr, \
 810                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 811                                 .u = { \
 812                                         .side_u16 = (_val), \
 813                                 }, \
 814                         }, \
 815                 }, \
 816         }
 817 #define side_arg_dynamic_u32(_val, _attr) \
 818         { \
 819                 .dynamic_type = SIDE_DYNAMIC_TYPE_U32, \
 820                 .u = { \
 821                         .side_basic = { \
 822                                 .attr = _attr, \
 823                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 824                                 .u = { \
 825                                         .side_u32 = (_val), \
 826                                 }, \
 827                         }, \
 828                 }, \
 829         }
 830 #define side_arg_dynamic_u64(_val, _attr) \
 831         { \
 832                 .dynamic_type = SIDE_DYNAMIC_TYPE_U64, \
 833                 .u = { \
 834                         .side_basic = { \
 835                                 .attr = _attr, \
 836                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 837                                 .u = { \
 838                                         .side_u64 = (_val), \
 839                                 }, \
 840                         }, \
 841                 }, \
 842         }
 843
 844 #define side_arg_dynamic_s8(_val, _attr) \
 845         { \
 846                 .dynamic_type = SIDE_DYNAMIC_TYPE_S8, \
 847                 .u = { \
 848                         .side_basic = { \
 849                                 .attr = _attr, \
 850                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 851                                 .u = { \
 852                                         .side_s8 = (_val), \
 853                                 }, \
 854                         }, \
 855                 }, \
 856         }
 857 #define side_arg_dynamic_s16(_val, _attr) \
 858         { \
 859                 .dynamic_type = SIDE_DYNAMIC_TYPE_S16, \
 860                 .u = { \
 861                         .side_basic = { \
 862                                 .attr = _attr, \
 863                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 864                                 .u = { \
 865                                         .side_s16 = (_val), \
 866                                 }, \
 867                         }, \
 868                 }, \
 869         }
 870 #define side_arg_dynamic_s32(_val, _attr) \
 871         { \
 872                 .dynamic_type = SIDE_DYNAMIC_TYPE_S32, \
 873                 .u = { \
 874                         .side_basic = { \
 875                                 .attr = _attr, \
 876                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 877                                 .u = { \
 878                                         .side_s32 = (_val), \
 879                                 }, \
 880                         }, \
 881                 }, \
 882         }
 883 #define side_arg_dynamic_s64(_val, _attr) \
 884         { \
 885                 .dynamic_type = SIDE_DYNAMIC_TYPE_S64, \
 886                 .u = { \
 887                         .side_basic = { \
 888                                 .attr = _attr, \
 889                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 890                                 .u = { \
 891                                         .side_s64 = (_val), \
 892                                 }, \
 893                         }, \
 894                 }, \
 895         }
 896 #define side_arg_dynamic_blob(_val, _attr) \
 897         { \
 898                 .dynamic_type = SIDE_DYNAMIC_TYPE_BLOB, \
 899                 .u = { \
 900                         .side_basic = { \
 901                                 .attr = _attr, \
 902                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 903                                 .u = { \
 904                                         .side_blob = (_val), \
 905                                 }, \
 906                         }, \
 907                 }, \
 908         }
 909
 910 #define side_arg_dynamic_float_binary16(_val, _attr) \
 911         { \
 912                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY16, \
 913                 .u = { \
 914                         .side_basic = { \
 915                                 .attr = _attr, \
 916                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 917                                 .u = { \
 918                                         .side_float_binary16 = (_val), \
 919                                 }, \
 920                         }, \
 921                 }, \
 922         }
 923 #define side_arg_dynamic_float_binary32(_val, _attr) \
 924         { \
 925                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY32, \
 926                 .u = { \
 927                         .side_basic = { \
 928                                 .attr = _attr, \
 929                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 930                                 .u = { \
 931                                         .side_float_binary32 = (_val), \
 932                                 }, \
 933                         }, \
 934                 }, \
 935         }
 936 #define side_arg_dynamic_float_binary64(_val, _attr) \
 937         { \
 938                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY64, \
 939                 .u = { \
 940                         .side_basic = { \
 941                                 .attr = _attr, \
 942                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 943                                 .u = { \
 944                                         .side_float_binary64 = (_val), \
 945                                 }, \
 946                         }, \
 947                 }, \
 948         }
 949 #define side_arg_dynamic_float_binary128(_val, _attr) \
 950         { \
 951                 .dynamic_type = SIDE_DYNAMIC_TYPE_FLOAT_BINARY128, \
 952                 .u = { \
 953                         .side_basic = { \
 954                                 .attr = _attr, \
 955                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 956                                 .u = { \
 957                                         .side_float_binary128 = (_val), \
 958                                 }, \
 959                         }, \
 960                 }, \
 961         }
 962
 963 #define side_arg_dynamic_string(_val, _attr) \
 964         { \
 965                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRING, \
 966                 .u = { \
 967                         .side_basic = { \
 968                                 .attr = _attr, \
 969                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 970                                 .u = { \
 971                                         .string = (_val), \
 972                                 }, \
 973                         }, \
 974                 }, \
 975         }
 976
 977 #define side_arg_dynamic_vla(_vla) \
 978         { \
 979                 .dynamic_type = SIDE_DYNAMIC_TYPE_VLA, \
 980                 .u = { \
 981                         .side_dynamic_vla = (_vla), \
 982                 }, \
 983         }
 984
 985 #define side_arg_dynamic_vla_visitor(_dynamic_vla_visitor, _ctx, _attr) \
 986         { \
 987                 .dynamic_type = SIDE_DYNAMIC_TYPE_VLA_VISITOR, \
 988                 .u = { \
 989                         .side_dynamic_vla_visitor = { \
 990                                 .app_ctx = _ctx, \
 991                                 .visitor = _dynamic_vla_visitor, \
 992                                 .attr = _attr, \
 993                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
 994                         }, \
 995                 }, \
 996         }
 997
 998 #define side_arg_dynamic_struct(_struct) \
 999         { \
1000                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT, \
1001                 .u = { \
1002                         .side_dynamic_struct = (_struct), \
1003                 }, \
1004         }
1005
1006 #define side_arg_dynamic_struct_visitor(_dynamic_struct_visitor, _ctx, _attr) \
1007         { \
1008                 .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT_VISITOR, \
1009                 .u = { \
1010                         .side_dynamic_struct_visitor = { \
1011                                 .app_ctx = _ctx, \
1012                                 .visitor = _dynamic_struct_visitor, \
1013                                 .attr = _attr, \
1014                                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1015                         }, \
1016                 }, \
1017         }
1018
1019 #define side_arg_dynamic_define_vec(_identifier, _sav, _attr) \
1020         const struct side_arg_dynamic_vec _identifier##_vec[] = { _sav }; \
1021         const struct side_arg_dynamic_vec_vla _identifier = { \
1022                 .sav = _identifier##_vec, \
1023                 .attr = _attr, \
1024                 .len = SIDE_ARRAY_SIZE(_identifier##_vec), \
1025                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1026         }
1027
1028 #define side_arg_dynamic_define_struct(_identifier, _struct_fields, _attr) \
1029         const struct side_arg_dynamic_event_field _identifier##_fields[] = { _struct_fields }; \
1030         const struct side_arg_dynamic_event_struct _identifier = { \
1031                 .fields = _identifier##_fields, \
1032                 .attr = _attr, \
1033                 .len = SIDE_ARRAY_SIZE(_identifier##_fields), \
1034                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1035         }
1036
1037 #define side_arg_define_vec(_identifier, _sav) \
1038         const struct side_arg_vec _identifier##_vec[] = { _sav }; \
1039         const struct side_arg_vec_description _identifier = { \
1040                 .sav = _identifier##_vec, \
1041                 .len = SIDE_ARRAY_SIZE(_identifier##_vec), \
1042         }
1043
1044 #define side_arg_dynamic_field(_name, _elem) \
1045         { \
1046                 .field_name = _name, \
1047                 .elem = _elem, \
1048         }
1049
1050 #define side_arg_list(...)      __VA_ARGS__
1051
1052 #define side_define_enum(_identifier, _mappings, _attr) \
1053         const struct side_enum_mappings _identifier = { \
1054                 .mappings = _mappings, \
1055                 .attr = _attr, \
1056                 .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \
1057                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1058         }
1059
1060 #define side_enum_mapping_list(...) \
1061         SIDE_COMPOUND_LITERAL(const struct side_enum_mapping, __VA_ARGS__)
1062
1063 #define side_enum_mapping_range(_label, _begin, _end) \
1064         { \
1065                 .range_begin = _begin, \
1066                 .range_end = _end, \
1067                 .label = _label, \
1068         }
1069
1070 #define side_enum_mapping_value(_label, _value) \
1071         { \
1072                 .range_begin = _value, \
1073                 .range_end = _value, \
1074                 .label = _label, \
1075         }
1076
1077 #define side_define_enum_bitmap(_identifier, _mappings, _attr) \
1078         const struct side_enum_bitmap_mappings _identifier = { \
1079                 .mappings = _mappings, \
1080                 .attr = _attr, \
1081                 .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \
1082                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1083         }
1084
1085 #define side_enum_bitmap_mapping_list(...) \
1086         SIDE_COMPOUND_LITERAL(const struct side_enum_bitmap_mapping, __VA_ARGS__)
1087
1088 #define side_enum_bitmap_mapping_range(_label, _begin, _end) \
1089         { \
1090                 .range_begin = _begin, \
1091                 .range_end = _end, \
1092                 .label = _label, \
1093         }
1094
1095 #define side_enum_bitmap_mapping_value(_label, _value) \
1096         { \
1097                 .range_begin = _value, \
1098                 .range_end = _value, \
1099                 .label = _label, \
1100         }
1101
1102 #define side_event_cond(_desc) if (side_unlikely(_desc##_enabled))
1103
1104 #define side_event_call(_desc, _sav) \
1105         { \
1106                 const struct side_arg_vec side_sav[] = { _sav }; \
1107                 const struct side_arg_vec_description sav_desc = { \
1108                         .sav = side_sav, \
1109                         .len = SIDE_ARRAY_SIZE(side_sav), \
1110                 }; \
1111                 side_call(&(_desc), &sav_desc); \
1112         }
1113
1114 #define side_event(_desc, _sav) \
1115         side_event_cond(_desc) \
1116                 side_event_call(_desc, SIDE_PARAM(_sav))
1117
1118 #define side_event_call_variadic(_desc, _sav, _var_fields, _attr) \
1119         { \
1120                 const struct side_arg_vec side_sav[] = { _sav }; \
1121                 const struct side_arg_vec_description sav_desc = { \
1122                         .sav = side_sav, \
1123                         .len = SIDE_ARRAY_SIZE(side_sav), \
1124                 }; \
1125                 const struct side_arg_dynamic_event_field side_fields[] = { _var_fields }; \
1126                 const struct side_arg_dynamic_event_struct var_struct = { \
1127                         .fields = side_fields, \
1128                         .attr = _attr, \
1129                         .len = SIDE_ARRAY_SIZE(side_fields), \
1130                         .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1131                 }; \
1132                 side_call_variadic(&(_desc), &sav_desc, &var_struct); \
1133         }
1134
1135 #define side_event_variadic(_desc, _sav, _var, _attr) \
1136         side_event_cond(_desc) \
1137                 side_event_call_variadic(_desc, SIDE_PARAM(_sav), SIDE_PARAM(_var), SIDE_PARAM(_attr))
1138
1139 #define _side_define_event(_identifier, _provider, _event, _loglevel, _fields, _attr, _flags) \
1140         uint32_t _identifier##_enabled __attribute__((section("side_event_enable"))); \
1141         struct side_callbacks _identifier##_callbacks __attribute__((section("side_event_callbacks"))); \
1142         const struct side_event_description _identifier = { \
1143                 .version = 0, \
1144                 .enabled = &(_identifier##_enabled), \
1145                 .loglevel = _loglevel, \
1146                 .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \
1147                 .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \
1148                 .flags = (_flags), \
1149                 .provider_name = _provider, \
1150                 .event_name = _event, \
1151                 .fields = _fields, \
1152                 .attr = _attr, \
1153                 .callbacks = &(_identifier##_callbacks), \
1154         }; \
1155         const struct side_event_description *_identifier##_ptr \
1156                 __attribute__((section("side_event_description"), used)) = &(_identifier);
1157
1158 #define side_define_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1159         _side_define_event(_identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1160                         SIDE_PARAM(_attr), 0)
1161
1162 #define side_define_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \
1163         _side_define_event(_identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \
1164                         SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC)
1165
1166 #define side_declare_event(_identifier) \
1167         struct side_event_description _identifier
1168
1169 void side_call(const struct side_event_description *desc,
1170         const struct side_arg_vec_description *sav_desc);
1171 void side_call_variadic(const struct side_event_description *desc,
1172         const struct side_arg_vec_description *sav_desc,
1173         const struct side_arg_dynamic_event_struct *var_struct);
1174
1175 #endif /* _SIDE_TRACE_H */