1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (c) 2018 Facebook */ 3 4 #include <linux/bpf.h> 5 #include <linux/btf.h> 6 #include <linux/err.h> 7 #include <linux/kernel.h> 8 #include <linux/filter.h> 9 #include <linux/unistd.h> 10 #include <bpf/bpf.h> 11 #include <libelf.h> 12 #include <gelf.h> 13 #include <string.h> 14 #include <stdlib.h> 15 #include <stdio.h> 16 #include <stdarg.h> 17 #include <unistd.h> 18 #include <fcntl.h> 19 #include <errno.h> 20 #include <assert.h> 21 #include <bpf/libbpf.h> 22 #include <bpf/btf.h> 23 24 #include "bpf_util.h" 25 #include "../test_btf.h" 26 #include "test_progs.h" 27 28 #define MAX_INSNS 512 29 #define MAX_SUBPROGS 16 30 31 static int duration = 0; 32 static bool always_log; 33 34 #undef CHECK 35 #define CHECK(condition, format...) _CHECK(condition, "check", duration, format) 36 37 #define NAME_TBD 0xdeadb33f 38 39 #define NAME_NTH(N) (0xfffe0000 | N) 40 #define IS_NAME_NTH(X) ((X & 0xffff0000) == 0xfffe0000) 41 #define GET_NAME_NTH_IDX(X) (X & 0x0000ffff) 42 43 #define MAX_NR_RAW_U32 1024 44 #define BTF_LOG_BUF_SIZE 65535 45 46 static char btf_log_buf[BTF_LOG_BUF_SIZE]; 47 48 static struct btf_header hdr_tmpl = { 49 .magic = BTF_MAGIC, 50 .version = BTF_VERSION, 51 .hdr_len = sizeof(struct btf_header), 52 }; 53 54 /* several different mapv kinds(types) supported by pprint */ 55 enum pprint_mapv_kind_t { 56 PPRINT_MAPV_KIND_BASIC = 0, 57 PPRINT_MAPV_KIND_INT128, 58 }; 59 60 struct btf_raw_test { 61 const char *descr; 62 const char *str_sec; 63 const char *map_name; 64 const char *err_str; 65 __u32 raw_types[MAX_NR_RAW_U32]; 66 __u32 str_sec_size; 67 enum bpf_map_type map_type; 68 __u32 key_size; 69 __u32 value_size; 70 __u32 key_type_id; 71 __u32 value_type_id; 72 __u32 max_entries; 73 bool btf_load_err; 74 bool map_create_err; 75 bool ordered_map; 76 bool lossless_map; 77 bool percpu_map; 78 int hdr_len_delta; 79 int type_off_delta; 80 int str_off_delta; 81 int str_len_delta; 82 enum pprint_mapv_kind_t mapv_kind; 83 }; 84 85 #define BTF_STR_SEC(str) \ 86 .str_sec = str, .str_sec_size = sizeof(str) 87 88 static struct btf_raw_test raw_tests[] = { 89 /* enum E { 90 * E0, 91 * E1, 92 * }; 93 * 94 * struct A { 95 * unsigned long long m; 96 * int n; 97 * char o; 98 * [3 bytes hole] 99 * int p[8]; 100 * int q[4][8]; 101 * enum E r; 102 * }; 103 */ 104 { 105 .descr = "struct test #1", 106 .raw_types = { 107 /* int */ 108 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 109 /* unsigned long long */ 110 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */ 111 /* char */ 112 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */ 113 /* int[8] */ 114 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */ 115 /* struct A { */ /* [5] */ 116 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 6), 180), 117 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/ 118 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */ 119 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */ 120 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */ 121 BTF_MEMBER_ENC(NAME_TBD, 6, 384),/* int q[4][8] */ 122 BTF_MEMBER_ENC(NAME_TBD, 7, 1408), /* enum E r */ 123 /* } */ 124 /* int[4][8] */ 125 BTF_TYPE_ARRAY_ENC(4, 1, 4), /* [6] */ 126 /* enum E */ /* [7] */ 127 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), sizeof(int)), 128 BTF_ENUM_ENC(NAME_TBD, 0), 129 BTF_ENUM_ENC(NAME_TBD, 1), 130 BTF_END_RAW, 131 }, 132 .str_sec = "\0A\0m\0n\0o\0p\0q\0r\0E\0E0\0E1", 133 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0q\0r\0E\0E0\0E1"), 134 .map_type = BPF_MAP_TYPE_ARRAY, 135 .map_name = "struct_test1_map", 136 .key_size = sizeof(int), 137 .value_size = 180, 138 .key_type_id = 1, 139 .value_type_id = 5, 140 .max_entries = 4, 141 }, 142 143 /* typedef struct b Struct_B; 144 * 145 * struct A { 146 * int m; 147 * struct b n[4]; 148 * const Struct_B o[4]; 149 * }; 150 * 151 * struct B { 152 * int m; 153 * int n; 154 * }; 155 */ 156 { 157 .descr = "struct test #2", 158 .raw_types = { 159 /* int */ /* [1] */ 160 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 161 /* struct b [4] */ /* [2] */ 162 BTF_TYPE_ARRAY_ENC(4, 1, 4), 163 164 /* struct A { */ /* [3] */ 165 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 3), 68), 166 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ 167 BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct B n[4] */ 168 BTF_MEMBER_ENC(NAME_TBD, 8, 288),/* const Struct_B o[4];*/ 169 /* } */ 170 171 /* struct B { */ /* [4] */ 172 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8), 173 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ 174 BTF_MEMBER_ENC(NAME_TBD, 1, 32),/* int n; */ 175 /* } */ 176 177 /* const int */ /* [5] */ 178 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1), 179 /* typedef struct b Struct_B */ /* [6] */ 180 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 4), 181 /* const Struct_B */ /* [7] */ 182 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 6), 183 /* const Struct_B [4] */ /* [8] */ 184 BTF_TYPE_ARRAY_ENC(7, 1, 4), 185 BTF_END_RAW, 186 }, 187 .str_sec = "\0A\0m\0n\0o\0B\0m\0n\0Struct_B", 188 .str_sec_size = sizeof("\0A\0m\0n\0o\0B\0m\0n\0Struct_B"), 189 .map_type = BPF_MAP_TYPE_ARRAY, 190 .map_name = "struct_test2_map", 191 .key_size = sizeof(int), 192 .value_size = 68, 193 .key_type_id = 1, 194 .value_type_id = 3, 195 .max_entries = 4, 196 }, 197 { 198 .descr = "struct test #3 Invalid member offset", 199 .raw_types = { 200 /* int */ /* [1] */ 201 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 202 /* int64 */ /* [2] */ 203 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8), 204 205 /* struct A { */ /* [3] */ 206 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 16), 207 BTF_MEMBER_ENC(NAME_TBD, 1, 64), /* int m; */ 208 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* int64 n; */ 209 /* } */ 210 BTF_END_RAW, 211 }, 212 .str_sec = "\0A\0m\0n\0", 213 .str_sec_size = sizeof("\0A\0m\0n\0"), 214 .map_type = BPF_MAP_TYPE_ARRAY, 215 .map_name = "struct_test3_map", 216 .key_size = sizeof(int), 217 .value_size = 16, 218 .key_type_id = 1, 219 .value_type_id = 3, 220 .max_entries = 4, 221 .btf_load_err = true, 222 .err_str = "Invalid member bits_offset", 223 }, 224 /* 225 * struct A { 226 * unsigned long long m; 227 * int n; 228 * char o; 229 * [3 bytes hole] 230 * int p[8]; 231 * }; 232 */ 233 { 234 .descr = "global data test #1", 235 .raw_types = { 236 /* int */ 237 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 238 /* unsigned long long */ 239 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */ 240 /* char */ 241 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */ 242 /* int[8] */ 243 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */ 244 /* struct A { */ /* [5] */ 245 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48), 246 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/ 247 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */ 248 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */ 249 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */ 250 /* } */ 251 BTF_END_RAW, 252 }, 253 .str_sec = "\0A\0m\0n\0o\0p", 254 .str_sec_size = sizeof("\0A\0m\0n\0o\0p"), 255 .map_type = BPF_MAP_TYPE_ARRAY, 256 .map_name = "struct_test1_map", 257 .key_size = sizeof(int), 258 .value_size = 48, 259 .key_type_id = 1, 260 .value_type_id = 5, 261 .max_entries = 4, 262 }, 263 /* 264 * struct A { 265 * unsigned long long m; 266 * int n; 267 * char o; 268 * [3 bytes hole] 269 * int p[8]; 270 * }; 271 * static struct A t; <- in .bss 272 */ 273 { 274 .descr = "global data test #2", 275 .raw_types = { 276 /* int */ 277 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 278 /* unsigned long long */ 279 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */ 280 /* char */ 281 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */ 282 /* int[8] */ 283 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */ 284 /* struct A { */ /* [5] */ 285 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48), 286 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/ 287 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */ 288 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */ 289 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */ 290 /* } */ 291 /* static struct A t */ 292 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */ 293 /* .bss section */ /* [7] */ 294 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 48), 295 BTF_VAR_SECINFO_ENC(6, 0, 48), 296 BTF_END_RAW, 297 }, 298 .str_sec = "\0A\0m\0n\0o\0p\0t\0.bss", 299 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"), 300 .map_type = BPF_MAP_TYPE_ARRAY, 301 .map_name = ".bss", 302 .key_size = sizeof(int), 303 .value_size = 48, 304 .key_type_id = 0, 305 .value_type_id = 7, 306 .max_entries = 1, 307 }, 308 { 309 .descr = "global data test #3", 310 .raw_types = { 311 /* int */ 312 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 313 /* static int t */ 314 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 315 /* .bss section */ /* [3] */ 316 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 317 BTF_VAR_SECINFO_ENC(2, 0, 4), 318 BTF_END_RAW, 319 }, 320 .str_sec = "\0t\0.bss", 321 .str_sec_size = sizeof("\0t\0.bss"), 322 .map_type = BPF_MAP_TYPE_ARRAY, 323 .map_name = ".bss", 324 .key_size = sizeof(int), 325 .value_size = 4, 326 .key_type_id = 0, 327 .value_type_id = 3, 328 .max_entries = 1, 329 }, 330 { 331 .descr = "global data test #4, unsupported linkage", 332 .raw_types = { 333 /* int */ 334 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 335 /* static int t */ 336 BTF_VAR_ENC(NAME_TBD, 1, 2), /* [2] */ 337 /* .bss section */ /* [3] */ 338 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 339 BTF_VAR_SECINFO_ENC(2, 0, 4), 340 BTF_END_RAW, 341 }, 342 .str_sec = "\0t\0.bss", 343 .str_sec_size = sizeof("\0t\0.bss"), 344 .map_type = BPF_MAP_TYPE_ARRAY, 345 .map_name = ".bss", 346 .key_size = sizeof(int), 347 .value_size = 4, 348 .key_type_id = 0, 349 .value_type_id = 3, 350 .max_entries = 1, 351 .btf_load_err = true, 352 .err_str = "Linkage not supported", 353 }, 354 { 355 .descr = "global data test #5, invalid var type", 356 .raw_types = { 357 /* static void t */ 358 BTF_VAR_ENC(NAME_TBD, 0, 0), /* [1] */ 359 /* .bss section */ /* [2] */ 360 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 361 BTF_VAR_SECINFO_ENC(1, 0, 4), 362 BTF_END_RAW, 363 }, 364 .str_sec = "\0t\0.bss", 365 .str_sec_size = sizeof("\0t\0.bss"), 366 .map_type = BPF_MAP_TYPE_ARRAY, 367 .map_name = ".bss", 368 .key_size = sizeof(int), 369 .value_size = 4, 370 .key_type_id = 0, 371 .value_type_id = 2, 372 .max_entries = 1, 373 .btf_load_err = true, 374 .err_str = "Invalid type_id", 375 }, 376 { 377 .descr = "global data test #6, invalid var type (fwd type)", 378 .raw_types = { 379 /* union A */ 380 BTF_TYPE_ENC(NAME_TBD, 381 BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [1] */ 382 /* static union A t */ 383 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 384 /* .bss section */ /* [3] */ 385 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 386 BTF_VAR_SECINFO_ENC(2, 0, 4), 387 BTF_END_RAW, 388 }, 389 .str_sec = "\0A\0t\0.bss", 390 .str_sec_size = sizeof("\0A\0t\0.bss"), 391 .map_type = BPF_MAP_TYPE_ARRAY, 392 .map_name = ".bss", 393 .key_size = sizeof(int), 394 .value_size = 4, 395 .key_type_id = 0, 396 .value_type_id = 2, 397 .max_entries = 1, 398 .btf_load_err = true, 399 .err_str = "Invalid type", 400 }, 401 { 402 .descr = "global data test #7, invalid var type (fwd type)", 403 .raw_types = { 404 /* union A */ 405 BTF_TYPE_ENC(NAME_TBD, 406 BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [1] */ 407 /* static union A t */ 408 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 409 /* .bss section */ /* [3] */ 410 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 411 BTF_VAR_SECINFO_ENC(1, 0, 4), 412 BTF_END_RAW, 413 }, 414 .str_sec = "\0A\0t\0.bss", 415 .str_sec_size = sizeof("\0A\0t\0.bss"), 416 .map_type = BPF_MAP_TYPE_ARRAY, 417 .map_name = ".bss", 418 .key_size = sizeof(int), 419 .value_size = 4, 420 .key_type_id = 0, 421 .value_type_id = 2, 422 .max_entries = 1, 423 .btf_load_err = true, 424 .err_str = "Invalid type", 425 }, 426 { 427 .descr = "global data test #8, invalid var size", 428 .raw_types = { 429 /* int */ 430 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 431 /* unsigned long long */ 432 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */ 433 /* char */ 434 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */ 435 /* int[8] */ 436 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */ 437 /* struct A { */ /* [5] */ 438 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48), 439 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/ 440 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */ 441 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */ 442 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */ 443 /* } */ 444 /* static struct A t */ 445 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */ 446 /* .bss section */ /* [7] */ 447 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 48), 448 BTF_VAR_SECINFO_ENC(6, 0, 47), 449 BTF_END_RAW, 450 }, 451 .str_sec = "\0A\0m\0n\0o\0p\0t\0.bss", 452 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"), 453 .map_type = BPF_MAP_TYPE_ARRAY, 454 .map_name = ".bss", 455 .key_size = sizeof(int), 456 .value_size = 48, 457 .key_type_id = 0, 458 .value_type_id = 7, 459 .max_entries = 1, 460 .btf_load_err = true, 461 .err_str = "Invalid size", 462 }, 463 { 464 .descr = "global data test #9, invalid var size", 465 .raw_types = { 466 /* int */ 467 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 468 /* unsigned long long */ 469 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */ 470 /* char */ 471 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */ 472 /* int[8] */ 473 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */ 474 /* struct A { */ /* [5] */ 475 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48), 476 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/ 477 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */ 478 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */ 479 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */ 480 /* } */ 481 /* static struct A t */ 482 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */ 483 /* .bss section */ /* [7] */ 484 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 46), 485 BTF_VAR_SECINFO_ENC(6, 0, 48), 486 BTF_END_RAW, 487 }, 488 .str_sec = "\0A\0m\0n\0o\0p\0t\0.bss", 489 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"), 490 .map_type = BPF_MAP_TYPE_ARRAY, 491 .map_name = ".bss", 492 .key_size = sizeof(int), 493 .value_size = 48, 494 .key_type_id = 0, 495 .value_type_id = 7, 496 .max_entries = 1, 497 .btf_load_err = true, 498 .err_str = "Invalid size", 499 }, 500 { 501 .descr = "global data test #10, invalid var size", 502 .raw_types = { 503 /* int */ 504 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 505 /* unsigned long long */ 506 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */ 507 /* char */ 508 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */ 509 /* int[8] */ 510 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */ 511 /* struct A { */ /* [5] */ 512 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48), 513 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/ 514 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */ 515 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */ 516 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */ 517 /* } */ 518 /* static struct A t */ 519 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */ 520 /* .bss section */ /* [7] */ 521 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 46), 522 BTF_VAR_SECINFO_ENC(6, 0, 46), 523 BTF_END_RAW, 524 }, 525 .str_sec = "\0A\0m\0n\0o\0p\0t\0.bss", 526 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"), 527 .map_type = BPF_MAP_TYPE_ARRAY, 528 .map_name = ".bss", 529 .key_size = sizeof(int), 530 .value_size = 48, 531 .key_type_id = 0, 532 .value_type_id = 7, 533 .max_entries = 1, 534 .btf_load_err = true, 535 .err_str = "Invalid size", 536 }, 537 { 538 .descr = "global data test #11, multiple section members", 539 .raw_types = { 540 /* int */ 541 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 542 /* unsigned long long */ 543 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */ 544 /* char */ 545 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */ 546 /* int[8] */ 547 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */ 548 /* struct A { */ /* [5] */ 549 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48), 550 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/ 551 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */ 552 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */ 553 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */ 554 /* } */ 555 /* static struct A t */ 556 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */ 557 /* static int u */ 558 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [7] */ 559 /* .bss section */ /* [8] */ 560 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62), 561 BTF_VAR_SECINFO_ENC(6, 10, 48), 562 BTF_VAR_SECINFO_ENC(7, 58, 4), 563 BTF_END_RAW, 564 }, 565 .str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss", 566 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"), 567 .map_type = BPF_MAP_TYPE_ARRAY, 568 .map_name = ".bss", 569 .key_size = sizeof(int), 570 .value_size = 62, 571 .key_type_id = 0, 572 .value_type_id = 8, 573 .max_entries = 1, 574 }, 575 { 576 .descr = "global data test #12, invalid offset", 577 .raw_types = { 578 /* int */ 579 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 580 /* unsigned long long */ 581 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */ 582 /* char */ 583 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */ 584 /* int[8] */ 585 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */ 586 /* struct A { */ /* [5] */ 587 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48), 588 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/ 589 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */ 590 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */ 591 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */ 592 /* } */ 593 /* static struct A t */ 594 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */ 595 /* static int u */ 596 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [7] */ 597 /* .bss section */ /* [8] */ 598 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62), 599 BTF_VAR_SECINFO_ENC(6, 10, 48), 600 BTF_VAR_SECINFO_ENC(7, 60, 4), 601 BTF_END_RAW, 602 }, 603 .str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss", 604 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"), 605 .map_type = BPF_MAP_TYPE_ARRAY, 606 .map_name = ".bss", 607 .key_size = sizeof(int), 608 .value_size = 62, 609 .key_type_id = 0, 610 .value_type_id = 8, 611 .max_entries = 1, 612 .btf_load_err = true, 613 .err_str = "Invalid offset+size", 614 }, 615 { 616 .descr = "global data test #13, invalid offset", 617 .raw_types = { 618 /* int */ 619 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 620 /* unsigned long long */ 621 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */ 622 /* char */ 623 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */ 624 /* int[8] */ 625 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */ 626 /* struct A { */ /* [5] */ 627 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48), 628 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/ 629 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */ 630 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */ 631 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */ 632 /* } */ 633 /* static struct A t */ 634 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */ 635 /* static int u */ 636 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [7] */ 637 /* .bss section */ /* [8] */ 638 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62), 639 BTF_VAR_SECINFO_ENC(6, 10, 48), 640 BTF_VAR_SECINFO_ENC(7, 12, 4), 641 BTF_END_RAW, 642 }, 643 .str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss", 644 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"), 645 .map_type = BPF_MAP_TYPE_ARRAY, 646 .map_name = ".bss", 647 .key_size = sizeof(int), 648 .value_size = 62, 649 .key_type_id = 0, 650 .value_type_id = 8, 651 .max_entries = 1, 652 .btf_load_err = true, 653 .err_str = "Invalid offset", 654 }, 655 { 656 .descr = "global data test #14, invalid offset", 657 .raw_types = { 658 /* int */ 659 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 660 /* unsigned long long */ 661 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */ 662 /* char */ 663 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */ 664 /* int[8] */ 665 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */ 666 /* struct A { */ /* [5] */ 667 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48), 668 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/ 669 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */ 670 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */ 671 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */ 672 /* } */ 673 /* static struct A t */ 674 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */ 675 /* static int u */ 676 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [7] */ 677 /* .bss section */ /* [8] */ 678 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62), 679 BTF_VAR_SECINFO_ENC(7, 58, 4), 680 BTF_VAR_SECINFO_ENC(6, 10, 48), 681 BTF_END_RAW, 682 }, 683 .str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss", 684 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"), 685 .map_type = BPF_MAP_TYPE_ARRAY, 686 .map_name = ".bss", 687 .key_size = sizeof(int), 688 .value_size = 62, 689 .key_type_id = 0, 690 .value_type_id = 8, 691 .max_entries = 1, 692 .btf_load_err = true, 693 .err_str = "Invalid offset", 694 }, 695 { 696 .descr = "global data test #15, not var kind", 697 .raw_types = { 698 /* int */ 699 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 700 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 701 /* .bss section */ /* [3] */ 702 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 703 BTF_VAR_SECINFO_ENC(1, 0, 4), 704 BTF_END_RAW, 705 }, 706 .str_sec = "\0A\0t\0.bss", 707 .str_sec_size = sizeof("\0A\0t\0.bss"), 708 .map_type = BPF_MAP_TYPE_ARRAY, 709 .map_name = ".bss", 710 .key_size = sizeof(int), 711 .value_size = 4, 712 .key_type_id = 0, 713 .value_type_id = 3, 714 .max_entries = 1, 715 .btf_load_err = true, 716 .err_str = "Not a VAR kind member", 717 }, 718 { 719 .descr = "global data test #16, invalid var referencing sec", 720 .raw_types = { 721 /* int */ 722 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 723 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [2] */ 724 BTF_VAR_ENC(NAME_TBD, 2, 0), /* [3] */ 725 /* a section */ /* [4] */ 726 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 727 BTF_VAR_SECINFO_ENC(3, 0, 4), 728 /* a section */ /* [5] */ 729 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 730 BTF_VAR_SECINFO_ENC(6, 0, 4), 731 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [6] */ 732 BTF_END_RAW, 733 }, 734 .str_sec = "\0A\0t\0s\0a\0a", 735 .str_sec_size = sizeof("\0A\0t\0s\0a\0a"), 736 .map_type = BPF_MAP_TYPE_ARRAY, 737 .map_name = ".bss", 738 .key_size = sizeof(int), 739 .value_size = 4, 740 .key_type_id = 0, 741 .value_type_id = 4, 742 .max_entries = 1, 743 .btf_load_err = true, 744 .err_str = "Invalid type_id", 745 }, 746 { 747 .descr = "global data test #17, invalid var referencing var", 748 .raw_types = { 749 /* int */ 750 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 751 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 752 BTF_VAR_ENC(NAME_TBD, 2, 0), /* [3] */ 753 /* a section */ /* [4] */ 754 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 755 BTF_VAR_SECINFO_ENC(3, 0, 4), 756 BTF_END_RAW, 757 }, 758 .str_sec = "\0A\0t\0s\0a\0a", 759 .str_sec_size = sizeof("\0A\0t\0s\0a\0a"), 760 .map_type = BPF_MAP_TYPE_ARRAY, 761 .map_name = ".bss", 762 .key_size = sizeof(int), 763 .value_size = 4, 764 .key_type_id = 0, 765 .value_type_id = 4, 766 .max_entries = 1, 767 .btf_load_err = true, 768 .err_str = "Invalid type_id", 769 }, 770 { 771 .descr = "global data test #18, invalid var loop", 772 .raw_types = { 773 /* int */ 774 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 775 BTF_VAR_ENC(NAME_TBD, 2, 0), /* [2] */ 776 /* .bss section */ /* [3] */ 777 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 778 BTF_VAR_SECINFO_ENC(2, 0, 4), 779 BTF_END_RAW, 780 }, 781 .str_sec = "\0A\0t\0aaa", 782 .str_sec_size = sizeof("\0A\0t\0aaa"), 783 .map_type = BPF_MAP_TYPE_ARRAY, 784 .map_name = ".bss", 785 .key_size = sizeof(int), 786 .value_size = 4, 787 .key_type_id = 0, 788 .value_type_id = 4, 789 .max_entries = 1, 790 .btf_load_err = true, 791 .err_str = "Invalid type_id", 792 }, 793 { 794 .descr = "global data test #19, invalid var referencing var", 795 .raw_types = { 796 /* int */ 797 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 798 BTF_VAR_ENC(NAME_TBD, 3, 0), /* [2] */ 799 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [3] */ 800 BTF_END_RAW, 801 }, 802 .str_sec = "\0A\0t\0s\0a\0a", 803 .str_sec_size = sizeof("\0A\0t\0s\0a\0a"), 804 .map_type = BPF_MAP_TYPE_ARRAY, 805 .map_name = ".bss", 806 .key_size = sizeof(int), 807 .value_size = 4, 808 .key_type_id = 0, 809 .value_type_id = 4, 810 .max_entries = 1, 811 .btf_load_err = true, 812 .err_str = "Invalid type_id", 813 }, 814 { 815 .descr = "global data test #20, invalid ptr referencing var", 816 .raw_types = { 817 /* int */ 818 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 819 /* PTR type_id=3 */ /* [2] */ 820 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 3), 821 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [3] */ 822 BTF_END_RAW, 823 }, 824 .str_sec = "\0A\0t\0s\0a\0a", 825 .str_sec_size = sizeof("\0A\0t\0s\0a\0a"), 826 .map_type = BPF_MAP_TYPE_ARRAY, 827 .map_name = ".bss", 828 .key_size = sizeof(int), 829 .value_size = 4, 830 .key_type_id = 0, 831 .value_type_id = 4, 832 .max_entries = 1, 833 .btf_load_err = true, 834 .err_str = "Invalid type_id", 835 }, 836 { 837 .descr = "global data test #21, var included in struct", 838 .raw_types = { 839 /* int */ 840 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 841 /* struct A { */ /* [2] */ 842 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2), 843 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ 844 BTF_MEMBER_ENC(NAME_TBD, 3, 32),/* VAR type_id=3; */ 845 /* } */ 846 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [3] */ 847 BTF_END_RAW, 848 }, 849 .str_sec = "\0A\0t\0s\0a\0a", 850 .str_sec_size = sizeof("\0A\0t\0s\0a\0a"), 851 .map_type = BPF_MAP_TYPE_ARRAY, 852 .map_name = ".bss", 853 .key_size = sizeof(int), 854 .value_size = 4, 855 .key_type_id = 0, 856 .value_type_id = 4, 857 .max_entries = 1, 858 .btf_load_err = true, 859 .err_str = "Invalid member", 860 }, 861 { 862 .descr = "global data test #22, array of var", 863 .raw_types = { 864 /* int */ 865 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 866 BTF_TYPE_ARRAY_ENC(3, 1, 4), /* [2] */ 867 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [3] */ 868 BTF_END_RAW, 869 }, 870 .str_sec = "\0A\0t\0s\0a\0a", 871 .str_sec_size = sizeof("\0A\0t\0s\0a\0a"), 872 .map_type = BPF_MAP_TYPE_ARRAY, 873 .map_name = ".bss", 874 .key_size = sizeof(int), 875 .value_size = 4, 876 .key_type_id = 0, 877 .value_type_id = 4, 878 .max_entries = 1, 879 .btf_load_err = true, 880 .err_str = "Invalid elem", 881 }, 882 { 883 .descr = "var after datasec, ptr followed by modifier", 884 .raw_types = { 885 /* .bss section */ /* [1] */ 886 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 887 sizeof(void*)+4), 888 BTF_VAR_SECINFO_ENC(4, 0, sizeof(void*)), 889 BTF_VAR_SECINFO_ENC(6, sizeof(void*), 4), 890 /* int */ /* [2] */ 891 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 892 /* int* */ /* [3] */ 893 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2), 894 BTF_VAR_ENC(NAME_TBD, 3, 0), /* [4] */ 895 /* const int */ /* [5] */ 896 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2), 897 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */ 898 BTF_END_RAW, 899 }, 900 .str_sec = "\0a\0b\0c\0", 901 .str_sec_size = sizeof("\0a\0b\0c\0"), 902 .map_type = BPF_MAP_TYPE_ARRAY, 903 .map_name = ".bss", 904 .key_size = sizeof(int), 905 .value_size = sizeof(void*)+4, 906 .key_type_id = 0, 907 .value_type_id = 1, 908 .max_entries = 1, 909 }, 910 /* Test member exceeds the size of struct. 911 * 912 * struct A { 913 * int m; 914 * int n; 915 * }; 916 */ 917 { 918 .descr = "size check test #1", 919 .raw_types = { 920 /* int */ /* [1] */ 921 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 922 /* struct A { */ /* [2] */ 923 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2 - 1), 924 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ 925 BTF_MEMBER_ENC(NAME_TBD, 1, 32),/* int n; */ 926 /* } */ 927 BTF_END_RAW, 928 }, 929 .str_sec = "\0A\0m\0n", 930 .str_sec_size = sizeof("\0A\0m\0n"), 931 .map_type = BPF_MAP_TYPE_ARRAY, 932 .map_name = "size_check1_map", 933 .key_size = sizeof(int), 934 .value_size = 1, 935 .key_type_id = 1, 936 .value_type_id = 2, 937 .max_entries = 4, 938 .btf_load_err = true, 939 .err_str = "Member exceeds struct_size", 940 }, 941 942 /* Test member exceeds the size of struct 943 * 944 * struct A { 945 * int m; 946 * int n[2]; 947 * }; 948 */ 949 { 950 .descr = "size check test #2", 951 .raw_types = { 952 /* int */ /* [1] */ 953 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)), 954 /* int[2] */ /* [2] */ 955 BTF_TYPE_ARRAY_ENC(1, 1, 2), 956 /* struct A { */ /* [3] */ 957 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 3 - 1), 958 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ 959 BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* int n[2]; */ 960 /* } */ 961 BTF_END_RAW, 962 }, 963 .str_sec = "\0A\0m\0n", 964 .str_sec_size = sizeof("\0A\0m\0n"), 965 .map_type = BPF_MAP_TYPE_ARRAY, 966 .map_name = "size_check2_map", 967 .key_size = sizeof(int), 968 .value_size = 1, 969 .key_type_id = 1, 970 .value_type_id = 3, 971 .max_entries = 4, 972 .btf_load_err = true, 973 .err_str = "Member exceeds struct_size", 974 }, 975 976 /* Test member exceeds the size of struct 977 * 978 * struct A { 979 * int m; 980 * void *n; 981 * }; 982 */ 983 { 984 .descr = "size check test #3", 985 .raw_types = { 986 /* int */ /* [1] */ 987 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)), 988 /* void* */ /* [2] */ 989 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), 990 /* struct A { */ /* [3] */ 991 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) + sizeof(void *) - 1), 992 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ 993 BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* void *n; */ 994 /* } */ 995 BTF_END_RAW, 996 }, 997 .str_sec = "\0A\0m\0n", 998 .str_sec_size = sizeof("\0A\0m\0n"), 999 .map_type = BPF_MAP_TYPE_ARRAY, 1000 .map_name = "size_check3_map", 1001 .key_size = sizeof(int), 1002 .value_size = 1, 1003 .key_type_id = 1, 1004 .value_type_id = 3, 1005 .max_entries = 4, 1006 .btf_load_err = true, 1007 .err_str = "Member exceeds struct_size", 1008 }, 1009 1010 /* Test member exceeds the size of struct 1011 * 1012 * enum E { 1013 * E0, 1014 * E1, 1015 * }; 1016 * 1017 * struct A { 1018 * int m; 1019 * enum E n; 1020 * }; 1021 */ 1022 { 1023 .descr = "size check test #4", 1024 .raw_types = { 1025 /* int */ /* [1] */ 1026 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)), 1027 /* enum E { */ /* [2] */ 1028 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), sizeof(int)), 1029 BTF_ENUM_ENC(NAME_TBD, 0), 1030 BTF_ENUM_ENC(NAME_TBD, 1), 1031 /* } */ 1032 /* struct A { */ /* [3] */ 1033 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2 - 1), 1034 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ 1035 BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* enum E n; */ 1036 /* } */ 1037 BTF_END_RAW, 1038 }, 1039 .str_sec = "\0E\0E0\0E1\0A\0m\0n", 1040 .str_sec_size = sizeof("\0E\0E0\0E1\0A\0m\0n"), 1041 .map_type = BPF_MAP_TYPE_ARRAY, 1042 .map_name = "size_check4_map", 1043 .key_size = sizeof(int), 1044 .value_size = 1, 1045 .key_type_id = 1, 1046 .value_type_id = 3, 1047 .max_entries = 4, 1048 .btf_load_err = true, 1049 .err_str = "Member exceeds struct_size", 1050 }, 1051 1052 /* Test member unexceeds the size of struct 1053 * 1054 * enum E { 1055 * E0, 1056 * E1, 1057 * }; 1058 * 1059 * struct A { 1060 * char m; 1061 * enum E __attribute__((packed)) n; 1062 * }; 1063 */ 1064 { 1065 .descr = "size check test #5", 1066 .raw_types = { 1067 /* int */ /* [1] */ 1068 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)), 1069 /* char */ /* [2] */ 1070 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), 1071 /* enum E { */ /* [3] */ 1072 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 1), 1073 BTF_ENUM_ENC(NAME_TBD, 0), 1074 BTF_ENUM_ENC(NAME_TBD, 1), 1075 /* } */ 1076 /* struct A { */ /* [4] */ 1077 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 2), 1078 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* char m; */ 1079 BTF_MEMBER_ENC(NAME_TBD, 3, 8),/* enum E __attribute__((packed)) n; */ 1080 /* } */ 1081 BTF_END_RAW, 1082 }, 1083 .str_sec = "\0E\0E0\0E1\0A\0m\0n", 1084 .str_sec_size = sizeof("\0E\0E0\0E1\0A\0m\0n"), 1085 .map_type = BPF_MAP_TYPE_ARRAY, 1086 .map_name = "size_check5_map", 1087 .key_size = sizeof(int), 1088 .value_size = 2, 1089 .key_type_id = 1, 1090 .value_type_id = 4, 1091 .max_entries = 4, 1092 }, 1093 1094 /* typedef const void * const_void_ptr; 1095 * struct A { 1096 * const_void_ptr m; 1097 * }; 1098 */ 1099 { 1100 .descr = "void test #1", 1101 .raw_types = { 1102 /* int */ /* [1] */ 1103 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1104 /* const void */ /* [2] */ 1105 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), 1106 /* const void* */ /* [3] */ 1107 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2), 1108 /* typedef const void * const_void_ptr */ 1109 BTF_TYPEDEF_ENC(NAME_TBD, 3), /* [4] */ 1110 /* struct A { */ /* [5] */ 1111 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)), 1112 /* const_void_ptr m; */ 1113 BTF_MEMBER_ENC(NAME_TBD, 4, 0), 1114 /* } */ 1115 BTF_END_RAW, 1116 }, 1117 .str_sec = "\0const_void_ptr\0A\0m", 1118 .str_sec_size = sizeof("\0const_void_ptr\0A\0m"), 1119 .map_type = BPF_MAP_TYPE_ARRAY, 1120 .map_name = "void_test1_map", 1121 .key_size = sizeof(int), 1122 .value_size = sizeof(void *), 1123 .key_type_id = 1, 1124 .value_type_id = 4, 1125 .max_entries = 4, 1126 }, 1127 1128 /* struct A { 1129 * const void m; 1130 * }; 1131 */ 1132 { 1133 .descr = "void test #2", 1134 .raw_types = { 1135 /* int */ /* [1] */ 1136 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1137 /* const void */ /* [2] */ 1138 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), 1139 /* struct A { */ /* [3] */ 1140 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 8), 1141 /* const void m; */ 1142 BTF_MEMBER_ENC(NAME_TBD, 2, 0), 1143 /* } */ 1144 BTF_END_RAW, 1145 }, 1146 .str_sec = "\0A\0m", 1147 .str_sec_size = sizeof("\0A\0m"), 1148 .map_type = BPF_MAP_TYPE_ARRAY, 1149 .map_name = "void_test2_map", 1150 .key_size = sizeof(int), 1151 .value_size = sizeof(void *), 1152 .key_type_id = 1, 1153 .value_type_id = 3, 1154 .max_entries = 4, 1155 .btf_load_err = true, 1156 .err_str = "Invalid member", 1157 }, 1158 1159 /* typedef const void * const_void_ptr; 1160 * const_void_ptr[4] 1161 */ 1162 { 1163 .descr = "void test #3", 1164 .raw_types = { 1165 /* int */ /* [1] */ 1166 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1167 /* const void */ /* [2] */ 1168 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), 1169 /* const void* */ /* [3] */ 1170 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2), 1171 /* typedef const void * const_void_ptr */ 1172 BTF_TYPEDEF_ENC(NAME_TBD, 3), /* [4] */ 1173 /* const_void_ptr[4] */ 1174 BTF_TYPE_ARRAY_ENC(4, 1, 4), /* [5] */ 1175 BTF_END_RAW, 1176 }, 1177 .str_sec = "\0const_void_ptr", 1178 .str_sec_size = sizeof("\0const_void_ptr"), 1179 .map_type = BPF_MAP_TYPE_ARRAY, 1180 .map_name = "void_test3_map", 1181 .key_size = sizeof(int), 1182 .value_size = sizeof(void *) * 4, 1183 .key_type_id = 1, 1184 .value_type_id = 5, 1185 .max_entries = 4, 1186 }, 1187 1188 /* const void[4] */ 1189 { 1190 .descr = "void test #4", 1191 .raw_types = { 1192 /* int */ /* [1] */ 1193 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1194 /* const void */ /* [2] */ 1195 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), 1196 /* const void[4] */ /* [3] */ 1197 BTF_TYPE_ARRAY_ENC(2, 1, 4), 1198 BTF_END_RAW, 1199 }, 1200 .str_sec = "\0A\0m", 1201 .str_sec_size = sizeof("\0A\0m"), 1202 .map_type = BPF_MAP_TYPE_ARRAY, 1203 .map_name = "void_test4_map", 1204 .key_size = sizeof(int), 1205 .value_size = sizeof(void *) * 4, 1206 .key_type_id = 1, 1207 .value_type_id = 3, 1208 .max_entries = 4, 1209 .btf_load_err = true, 1210 .err_str = "Invalid elem", 1211 }, 1212 1213 /* Array_A <------------------+ 1214 * elem_type == Array_B | 1215 * | | 1216 * | | 1217 * Array_B <-------- + | 1218 * elem_type == Array A --+ 1219 */ 1220 { 1221 .descr = "loop test #1", 1222 .raw_types = { 1223 /* int */ /* [1] */ 1224 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1225 /* Array_A */ /* [2] */ 1226 BTF_TYPE_ARRAY_ENC(3, 1, 8), 1227 /* Array_B */ /* [3] */ 1228 BTF_TYPE_ARRAY_ENC(2, 1, 8), 1229 BTF_END_RAW, 1230 }, 1231 .str_sec = "", 1232 .str_sec_size = sizeof(""), 1233 .map_type = BPF_MAP_TYPE_ARRAY, 1234 .map_name = "loop_test1_map", 1235 .key_size = sizeof(int), 1236 .value_size = sizeof(sizeof(int) * 8), 1237 .key_type_id = 1, 1238 .value_type_id = 2, 1239 .max_entries = 4, 1240 .btf_load_err = true, 1241 .err_str = "Loop detected", 1242 }, 1243 1244 /* typedef is _before_ the BTF type of Array_A and Array_B 1245 * 1246 * typedef Array_B int_array; 1247 * 1248 * Array_A <------------------+ 1249 * elem_type == int_array | 1250 * | | 1251 * | | 1252 * Array_B <-------- + | 1253 * elem_type == Array_A --+ 1254 */ 1255 { 1256 .descr = "loop test #2", 1257 .raw_types = { 1258 /* int */ 1259 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 1260 /* typedef Array_B int_array */ 1261 BTF_TYPEDEF_ENC(1, 4), /* [2] */ 1262 /* Array_A */ 1263 BTF_TYPE_ARRAY_ENC(2, 1, 8), /* [3] */ 1264 /* Array_B */ 1265 BTF_TYPE_ARRAY_ENC(3, 1, 8), /* [4] */ 1266 BTF_END_RAW, 1267 }, 1268 .str_sec = "\0int_array\0", 1269 .str_sec_size = sizeof("\0int_array"), 1270 .map_type = BPF_MAP_TYPE_ARRAY, 1271 .map_name = "loop_test2_map", 1272 .key_size = sizeof(int), 1273 .value_size = sizeof(sizeof(int) * 8), 1274 .key_type_id = 1, 1275 .value_type_id = 2, 1276 .max_entries = 4, 1277 .btf_load_err = true, 1278 .err_str = "Loop detected", 1279 }, 1280 1281 /* Array_A <------------------+ 1282 * elem_type == Array_B | 1283 * | | 1284 * | | 1285 * Array_B <-------- + | 1286 * elem_type == Array_A --+ 1287 */ 1288 { 1289 .descr = "loop test #3", 1290 .raw_types = { 1291 /* int */ /* [1] */ 1292 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1293 /* Array_A */ /* [2] */ 1294 BTF_TYPE_ARRAY_ENC(3, 1, 8), 1295 /* Array_B */ /* [3] */ 1296 BTF_TYPE_ARRAY_ENC(2, 1, 8), 1297 BTF_END_RAW, 1298 }, 1299 .str_sec = "", 1300 .str_sec_size = sizeof(""), 1301 .map_type = BPF_MAP_TYPE_ARRAY, 1302 .map_name = "loop_test3_map", 1303 .key_size = sizeof(int), 1304 .value_size = sizeof(sizeof(int) * 8), 1305 .key_type_id = 1, 1306 .value_type_id = 2, 1307 .max_entries = 4, 1308 .btf_load_err = true, 1309 .err_str = "Loop detected", 1310 }, 1311 1312 /* typedef is _between_ the BTF type of Array_A and Array_B 1313 * 1314 * typedef Array_B int_array; 1315 * 1316 * Array_A <------------------+ 1317 * elem_type == int_array | 1318 * | | 1319 * | | 1320 * Array_B <-------- + | 1321 * elem_type == Array_A --+ 1322 */ 1323 { 1324 .descr = "loop test #4", 1325 .raw_types = { 1326 /* int */ /* [1] */ 1327 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1328 /* Array_A */ /* [2] */ 1329 BTF_TYPE_ARRAY_ENC(3, 1, 8), 1330 /* typedef Array_B int_array */ /* [3] */ 1331 BTF_TYPEDEF_ENC(NAME_TBD, 4), 1332 /* Array_B */ /* [4] */ 1333 BTF_TYPE_ARRAY_ENC(2, 1, 8), 1334 BTF_END_RAW, 1335 }, 1336 .str_sec = "\0int_array\0", 1337 .str_sec_size = sizeof("\0int_array"), 1338 .map_type = BPF_MAP_TYPE_ARRAY, 1339 .map_name = "loop_test4_map", 1340 .key_size = sizeof(int), 1341 .value_size = sizeof(sizeof(int) * 8), 1342 .key_type_id = 1, 1343 .value_type_id = 2, 1344 .max_entries = 4, 1345 .btf_load_err = true, 1346 .err_str = "Loop detected", 1347 }, 1348 1349 /* typedef struct B Struct_B 1350 * 1351 * struct A { 1352 * int x; 1353 * Struct_B y; 1354 * }; 1355 * 1356 * struct B { 1357 * int x; 1358 * struct A y; 1359 * }; 1360 */ 1361 { 1362 .descr = "loop test #5", 1363 .raw_types = { 1364 /* int */ 1365 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 1366 /* struct A */ /* [2] */ 1367 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8), 1368 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int x; */ 1369 BTF_MEMBER_ENC(NAME_TBD, 3, 32),/* Struct_B y; */ 1370 /* typedef struct B Struct_B */ 1371 BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */ 1372 /* struct B */ /* [4] */ 1373 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8), 1374 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int x; */ 1375 BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct A y; */ 1376 BTF_END_RAW, 1377 }, 1378 .str_sec = "\0A\0x\0y\0Struct_B\0B\0x\0y", 1379 .str_sec_size = sizeof("\0A\0x\0y\0Struct_B\0B\0x\0y"), 1380 .map_type = BPF_MAP_TYPE_ARRAY, 1381 .map_name = "loop_test5_map", 1382 .key_size = sizeof(int), 1383 .value_size = 8, 1384 .key_type_id = 1, 1385 .value_type_id = 2, 1386 .max_entries = 4, 1387 .btf_load_err = true, 1388 .err_str = "Loop detected", 1389 }, 1390 1391 /* struct A { 1392 * int x; 1393 * struct A array_a[4]; 1394 * }; 1395 */ 1396 { 1397 .descr = "loop test #6", 1398 .raw_types = { 1399 /* int */ 1400 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 1401 BTF_TYPE_ARRAY_ENC(3, 1, 4), /* [2] */ 1402 /* struct A */ /* [3] */ 1403 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8), 1404 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int x; */ 1405 BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct A array_a[4]; */ 1406 BTF_END_RAW, 1407 }, 1408 .str_sec = "\0A\0x\0y", 1409 .str_sec_size = sizeof("\0A\0x\0y"), 1410 .map_type = BPF_MAP_TYPE_ARRAY, 1411 .map_name = "loop_test6_map", 1412 .key_size = sizeof(int), 1413 .value_size = 8, 1414 .key_type_id = 1, 1415 .value_type_id = 2, 1416 .max_entries = 4, 1417 .btf_load_err = true, 1418 .err_str = "Loop detected", 1419 }, 1420 1421 { 1422 .descr = "loop test #7", 1423 .raw_types = { 1424 /* int */ /* [1] */ 1425 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1426 /* struct A { */ /* [2] */ 1427 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)), 1428 /* const void *m; */ 1429 BTF_MEMBER_ENC(NAME_TBD, 3, 0), 1430 /* CONST type_id=3 */ /* [3] */ 1431 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4), 1432 /* PTR type_id=2 */ /* [4] */ 1433 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 3), 1434 BTF_END_RAW, 1435 }, 1436 .str_sec = "\0A\0m", 1437 .str_sec_size = sizeof("\0A\0m"), 1438 .map_type = BPF_MAP_TYPE_ARRAY, 1439 .map_name = "loop_test7_map", 1440 .key_size = sizeof(int), 1441 .value_size = sizeof(void *), 1442 .key_type_id = 1, 1443 .value_type_id = 2, 1444 .max_entries = 4, 1445 .btf_load_err = true, 1446 .err_str = "Loop detected", 1447 }, 1448 1449 { 1450 .descr = "loop test #8", 1451 .raw_types = { 1452 /* int */ /* [1] */ 1453 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1454 /* struct A { */ /* [2] */ 1455 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)), 1456 /* const void *m; */ 1457 BTF_MEMBER_ENC(NAME_TBD, 4, 0), 1458 /* struct B { */ /* [3] */ 1459 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)), 1460 /* const void *n; */ 1461 BTF_MEMBER_ENC(NAME_TBD, 6, 0), 1462 /* CONST type_id=5 */ /* [4] */ 1463 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 5), 1464 /* PTR type_id=6 */ /* [5] */ 1465 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 6), 1466 /* CONST type_id=7 */ /* [6] */ 1467 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 7), 1468 /* PTR type_id=4 */ /* [7] */ 1469 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 4), 1470 BTF_END_RAW, 1471 }, 1472 .str_sec = "\0A\0m\0B\0n", 1473 .str_sec_size = sizeof("\0A\0m\0B\0n"), 1474 .map_type = BPF_MAP_TYPE_ARRAY, 1475 .map_name = "loop_test8_map", 1476 .key_size = sizeof(int), 1477 .value_size = sizeof(void *), 1478 .key_type_id = 1, 1479 .value_type_id = 2, 1480 .max_entries = 4, 1481 .btf_load_err = true, 1482 .err_str = "Loop detected", 1483 }, 1484 1485 { 1486 .descr = "string section does not end with null", 1487 .raw_types = { 1488 /* int */ /* [1] */ 1489 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 1490 BTF_END_RAW, 1491 }, 1492 .str_sec = "\0int", 1493 .str_sec_size = sizeof("\0int") - 1, 1494 .map_type = BPF_MAP_TYPE_ARRAY, 1495 .map_name = "hdr_test_map", 1496 .key_size = sizeof(int), 1497 .value_size = sizeof(int), 1498 .key_type_id = 1, 1499 .value_type_id = 1, 1500 .max_entries = 4, 1501 .btf_load_err = true, 1502 .err_str = "Invalid string section", 1503 }, 1504 1505 { 1506 .descr = "empty string section", 1507 .raw_types = { 1508 /* int */ /* [1] */ 1509 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1510 BTF_END_RAW, 1511 }, 1512 .str_sec = "", 1513 .str_sec_size = 0, 1514 .map_type = BPF_MAP_TYPE_ARRAY, 1515 .map_name = "hdr_test_map", 1516 .key_size = sizeof(int), 1517 .value_size = sizeof(int), 1518 .key_type_id = 1, 1519 .value_type_id = 1, 1520 .max_entries = 4, 1521 .btf_load_err = true, 1522 .err_str = "Invalid string section", 1523 }, 1524 1525 { 1526 .descr = "empty type section", 1527 .raw_types = { 1528 BTF_END_RAW, 1529 }, 1530 .str_sec = "\0int", 1531 .str_sec_size = sizeof("\0int"), 1532 .map_type = BPF_MAP_TYPE_ARRAY, 1533 .map_name = "hdr_test_map", 1534 .key_size = sizeof(int), 1535 .value_size = sizeof(int), 1536 .key_type_id = 1, 1537 .value_type_id = 1, 1538 .max_entries = 4, 1539 .btf_load_err = true, 1540 .err_str = "No type found", 1541 }, 1542 1543 { 1544 .descr = "btf_header test. Longer hdr_len", 1545 .raw_types = { 1546 /* int */ /* [1] */ 1547 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 1548 BTF_END_RAW, 1549 }, 1550 .str_sec = "\0int", 1551 .str_sec_size = sizeof("\0int"), 1552 .map_type = BPF_MAP_TYPE_ARRAY, 1553 .map_name = "hdr_test_map", 1554 .key_size = sizeof(int), 1555 .value_size = sizeof(int), 1556 .key_type_id = 1, 1557 .value_type_id = 1, 1558 .max_entries = 4, 1559 .btf_load_err = true, 1560 .hdr_len_delta = 4, 1561 .err_str = "Unsupported btf_header", 1562 }, 1563 1564 { 1565 .descr = "btf_header test. Gap between hdr and type", 1566 .raw_types = { 1567 /* int */ /* [1] */ 1568 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 1569 BTF_END_RAW, 1570 }, 1571 .str_sec = "\0int", 1572 .str_sec_size = sizeof("\0int"), 1573 .map_type = BPF_MAP_TYPE_ARRAY, 1574 .map_name = "hdr_test_map", 1575 .key_size = sizeof(int), 1576 .value_size = sizeof(int), 1577 .key_type_id = 1, 1578 .value_type_id = 1, 1579 .max_entries = 4, 1580 .btf_load_err = true, 1581 .type_off_delta = 4, 1582 .err_str = "Unsupported section found", 1583 }, 1584 1585 { 1586 .descr = "btf_header test. Gap between type and str", 1587 .raw_types = { 1588 /* int */ /* [1] */ 1589 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 1590 BTF_END_RAW, 1591 }, 1592 .str_sec = "\0int", 1593 .str_sec_size = sizeof("\0int"), 1594 .map_type = BPF_MAP_TYPE_ARRAY, 1595 .map_name = "hdr_test_map", 1596 .key_size = sizeof(int), 1597 .value_size = sizeof(int), 1598 .key_type_id = 1, 1599 .value_type_id = 1, 1600 .max_entries = 4, 1601 .btf_load_err = true, 1602 .str_off_delta = 4, 1603 .err_str = "Unsupported section found", 1604 }, 1605 1606 { 1607 .descr = "btf_header test. Overlap between type and str", 1608 .raw_types = { 1609 /* int */ /* [1] */ 1610 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 1611 BTF_END_RAW, 1612 }, 1613 .str_sec = "\0int", 1614 .str_sec_size = sizeof("\0int"), 1615 .map_type = BPF_MAP_TYPE_ARRAY, 1616 .map_name = "hdr_test_map", 1617 .key_size = sizeof(int), 1618 .value_size = sizeof(int), 1619 .key_type_id = 1, 1620 .value_type_id = 1, 1621 .max_entries = 4, 1622 .btf_load_err = true, 1623 .str_off_delta = -4, 1624 .err_str = "Section overlap found", 1625 }, 1626 1627 { 1628 .descr = "btf_header test. Larger BTF size", 1629 .raw_types = { 1630 /* int */ /* [1] */ 1631 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 1632 BTF_END_RAW, 1633 }, 1634 .str_sec = "\0int", 1635 .str_sec_size = sizeof("\0int"), 1636 .map_type = BPF_MAP_TYPE_ARRAY, 1637 .map_name = "hdr_test_map", 1638 .key_size = sizeof(int), 1639 .value_size = sizeof(int), 1640 .key_type_id = 1, 1641 .value_type_id = 1, 1642 .max_entries = 4, 1643 .btf_load_err = true, 1644 .str_len_delta = -4, 1645 .err_str = "Unsupported section found", 1646 }, 1647 1648 { 1649 .descr = "btf_header test. Smaller BTF size", 1650 .raw_types = { 1651 /* int */ /* [1] */ 1652 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 1653 BTF_END_RAW, 1654 }, 1655 .str_sec = "\0int", 1656 .str_sec_size = sizeof("\0int"), 1657 .map_type = BPF_MAP_TYPE_ARRAY, 1658 .map_name = "hdr_test_map", 1659 .key_size = sizeof(int), 1660 .value_size = sizeof(int), 1661 .key_type_id = 1, 1662 .value_type_id = 1, 1663 .max_entries = 4, 1664 .btf_load_err = true, 1665 .str_len_delta = 4, 1666 .err_str = "Total section length too long", 1667 }, 1668 1669 { 1670 .descr = "array test. index_type/elem_type \"int\"", 1671 .raw_types = { 1672 /* int */ /* [1] */ 1673 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1674 /* int[16] */ /* [2] */ 1675 BTF_TYPE_ARRAY_ENC(1, 1, 16), 1676 BTF_END_RAW, 1677 }, 1678 .str_sec = "", 1679 .str_sec_size = sizeof(""), 1680 .map_type = BPF_MAP_TYPE_ARRAY, 1681 .map_name = "array_test_map", 1682 .key_size = sizeof(int), 1683 .value_size = sizeof(int), 1684 .key_type_id = 1, 1685 .value_type_id = 1, 1686 .max_entries = 4, 1687 }, 1688 1689 { 1690 .descr = "array test. index_type/elem_type \"const int\"", 1691 .raw_types = { 1692 /* int */ /* [1] */ 1693 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1694 /* int[16] */ /* [2] */ 1695 BTF_TYPE_ARRAY_ENC(3, 3, 16), 1696 /* CONST type_id=1 */ /* [3] */ 1697 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1), 1698 BTF_END_RAW, 1699 }, 1700 .str_sec = "", 1701 .str_sec_size = sizeof(""), 1702 .map_type = BPF_MAP_TYPE_ARRAY, 1703 .map_name = "array_test_map", 1704 .key_size = sizeof(int), 1705 .value_size = sizeof(int), 1706 .key_type_id = 1, 1707 .value_type_id = 1, 1708 .max_entries = 4, 1709 }, 1710 1711 { 1712 .descr = "array test. index_type \"const int:31\"", 1713 .raw_types = { 1714 /* int */ /* [1] */ 1715 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1716 /* int:31 */ /* [2] */ 1717 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 31, 4), 1718 /* int[16] */ /* [3] */ 1719 BTF_TYPE_ARRAY_ENC(1, 4, 16), 1720 /* CONST type_id=2 */ /* [4] */ 1721 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2), 1722 BTF_END_RAW, 1723 }, 1724 .str_sec = "", 1725 .str_sec_size = sizeof(""), 1726 .map_type = BPF_MAP_TYPE_ARRAY, 1727 .map_name = "array_test_map", 1728 .key_size = sizeof(int), 1729 .value_size = sizeof(int), 1730 .key_type_id = 1, 1731 .value_type_id = 1, 1732 .max_entries = 4, 1733 .btf_load_err = true, 1734 .err_str = "Invalid index", 1735 }, 1736 1737 { 1738 .descr = "array test. elem_type \"const int:31\"", 1739 .raw_types = { 1740 /* int */ /* [1] */ 1741 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1742 /* int:31 */ /* [2] */ 1743 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 31, 4), 1744 /* int[16] */ /* [3] */ 1745 BTF_TYPE_ARRAY_ENC(4, 1, 16), 1746 /* CONST type_id=2 */ /* [4] */ 1747 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2), 1748 BTF_END_RAW, 1749 }, 1750 .str_sec = "", 1751 .str_sec_size = sizeof(""), 1752 .map_type = BPF_MAP_TYPE_ARRAY, 1753 .map_name = "array_test_map", 1754 .key_size = sizeof(int), 1755 .value_size = sizeof(int), 1756 .key_type_id = 1, 1757 .value_type_id = 1, 1758 .max_entries = 4, 1759 .btf_load_err = true, 1760 .err_str = "Invalid array of int", 1761 }, 1762 1763 { 1764 .descr = "array test. index_type \"void\"", 1765 .raw_types = { 1766 /* int */ /* [1] */ 1767 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1768 /* int[16] */ /* [2] */ 1769 BTF_TYPE_ARRAY_ENC(1, 0, 16), 1770 BTF_END_RAW, 1771 }, 1772 .str_sec = "", 1773 .str_sec_size = sizeof(""), 1774 .map_type = BPF_MAP_TYPE_ARRAY, 1775 .map_name = "array_test_map", 1776 .key_size = sizeof(int), 1777 .value_size = sizeof(int), 1778 .key_type_id = 1, 1779 .value_type_id = 1, 1780 .max_entries = 4, 1781 .btf_load_err = true, 1782 .err_str = "Invalid index", 1783 }, 1784 1785 { 1786 .descr = "array test. index_type \"const void\"", 1787 .raw_types = { 1788 /* int */ /* [1] */ 1789 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1790 /* int[16] */ /* [2] */ 1791 BTF_TYPE_ARRAY_ENC(1, 3, 16), 1792 /* CONST type_id=0 (void) */ /* [3] */ 1793 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), 1794 BTF_END_RAW, 1795 }, 1796 .str_sec = "", 1797 .str_sec_size = sizeof(""), 1798 .map_type = BPF_MAP_TYPE_ARRAY, 1799 .map_name = "array_test_map", 1800 .key_size = sizeof(int), 1801 .value_size = sizeof(int), 1802 .key_type_id = 1, 1803 .value_type_id = 1, 1804 .max_entries = 4, 1805 .btf_load_err = true, 1806 .err_str = "Invalid index", 1807 }, 1808 1809 { 1810 .descr = "array test. elem_type \"const void\"", 1811 .raw_types = { 1812 /* int */ /* [1] */ 1813 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1814 /* int[16] */ /* [2] */ 1815 BTF_TYPE_ARRAY_ENC(3, 1, 16), 1816 /* CONST type_id=0 (void) */ /* [3] */ 1817 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), 1818 BTF_END_RAW, 1819 }, 1820 .str_sec = "", 1821 .str_sec_size = sizeof(""), 1822 .map_type = BPF_MAP_TYPE_ARRAY, 1823 .map_name = "array_test_map", 1824 .key_size = sizeof(int), 1825 .value_size = sizeof(int), 1826 .key_type_id = 1, 1827 .value_type_id = 1, 1828 .max_entries = 4, 1829 .btf_load_err = true, 1830 .err_str = "Invalid elem", 1831 }, 1832 1833 { 1834 .descr = "array test. elem_type \"const void *\"", 1835 .raw_types = { 1836 /* int */ /* [1] */ 1837 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1838 /* const void *[16] */ /* [2] */ 1839 BTF_TYPE_ARRAY_ENC(3, 1, 16), 1840 /* CONST type_id=4 */ /* [3] */ 1841 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4), 1842 /* void* */ /* [4] */ 1843 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), 1844 BTF_END_RAW, 1845 }, 1846 .str_sec = "", 1847 .str_sec_size = sizeof(""), 1848 .map_type = BPF_MAP_TYPE_ARRAY, 1849 .map_name = "array_test_map", 1850 .key_size = sizeof(int), 1851 .value_size = sizeof(int), 1852 .key_type_id = 1, 1853 .value_type_id = 1, 1854 .max_entries = 4, 1855 }, 1856 1857 { 1858 .descr = "array test. index_type \"const void *\"", 1859 .raw_types = { 1860 /* int */ /* [1] */ 1861 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1862 /* const void *[16] */ /* [2] */ 1863 BTF_TYPE_ARRAY_ENC(3, 3, 16), 1864 /* CONST type_id=4 */ /* [3] */ 1865 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4), 1866 /* void* */ /* [4] */ 1867 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), 1868 BTF_END_RAW, 1869 }, 1870 .str_sec = "", 1871 .str_sec_size = sizeof(""), 1872 .map_type = BPF_MAP_TYPE_ARRAY, 1873 .map_name = "array_test_map", 1874 .key_size = sizeof(int), 1875 .value_size = sizeof(int), 1876 .key_type_id = 1, 1877 .value_type_id = 1, 1878 .max_entries = 4, 1879 .btf_load_err = true, 1880 .err_str = "Invalid index", 1881 }, 1882 1883 { 1884 .descr = "array test. t->size != 0\"", 1885 .raw_types = { 1886 /* int */ /* [1] */ 1887 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1888 /* int[16] */ /* [2] */ 1889 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 1), 1890 BTF_ARRAY_ENC(1, 1, 16), 1891 BTF_END_RAW, 1892 }, 1893 .str_sec = "", 1894 .str_sec_size = sizeof(""), 1895 .map_type = BPF_MAP_TYPE_ARRAY, 1896 .map_name = "array_test_map", 1897 .key_size = sizeof(int), 1898 .value_size = sizeof(int), 1899 .key_type_id = 1, 1900 .value_type_id = 1, 1901 .max_entries = 4, 1902 .btf_load_err = true, 1903 .err_str = "size != 0", 1904 }, 1905 1906 { 1907 .descr = "int test. invalid int_data", 1908 .raw_types = { 1909 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), 4), 1910 0x10000000, 1911 BTF_END_RAW, 1912 }, 1913 .str_sec = "", 1914 .str_sec_size = sizeof(""), 1915 .map_type = BPF_MAP_TYPE_ARRAY, 1916 .map_name = "array_test_map", 1917 .key_size = sizeof(int), 1918 .value_size = sizeof(int), 1919 .key_type_id = 1, 1920 .value_type_id = 1, 1921 .max_entries = 4, 1922 .btf_load_err = true, 1923 .err_str = "Invalid int_data", 1924 }, 1925 1926 { 1927 .descr = "invalid BTF kind", 1928 .raw_types = { 1929 /* int */ /* [1] */ 1930 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1931 BTF_TYPE_ENC(0, 0x7f000000, 4), 1932 BTF_END_RAW, 1933 }, 1934 .str_sec = "", 1935 .str_sec_size = sizeof(""), 1936 .map_type = BPF_MAP_TYPE_ARRAY, 1937 .map_name = "array_test_map", 1938 .key_size = sizeof(int), 1939 .value_size = sizeof(int), 1940 .key_type_id = 1, 1941 .value_type_id = 1, 1942 .max_entries = 4, 1943 .btf_load_err = true, 1944 .err_str = "Invalid kind", 1945 }, 1946 1947 { 1948 .descr = "fwd test. t->type != 0\"", 1949 .raw_types = { 1950 /* int */ /* [1] */ 1951 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1952 /* fwd type */ /* [2] */ 1953 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 1), 1954 BTF_END_RAW, 1955 }, 1956 .str_sec = "", 1957 .str_sec_size = sizeof(""), 1958 .map_type = BPF_MAP_TYPE_ARRAY, 1959 .map_name = "fwd_test_map", 1960 .key_size = sizeof(int), 1961 .value_size = sizeof(int), 1962 .key_type_id = 1, 1963 .value_type_id = 1, 1964 .max_entries = 4, 1965 .btf_load_err = true, 1966 .err_str = "type != 0", 1967 }, 1968 1969 { 1970 .descr = "typedef (invalid name, name_off = 0)", 1971 .raw_types = { 1972 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 1973 BTF_TYPEDEF_ENC(0, 1), /* [2] */ 1974 BTF_END_RAW, 1975 }, 1976 .str_sec = "\0__int", 1977 .str_sec_size = sizeof("\0__int"), 1978 .map_type = BPF_MAP_TYPE_ARRAY, 1979 .map_name = "typedef_check_btf", 1980 .key_size = sizeof(int), 1981 .value_size = sizeof(int), 1982 .key_type_id = 1, 1983 .value_type_id = 1, 1984 .max_entries = 4, 1985 .btf_load_err = true, 1986 .err_str = "Invalid name", 1987 }, 1988 1989 { 1990 .descr = "typedef (invalid name, invalid identifier)", 1991 .raw_types = { 1992 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 1993 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */ 1994 BTF_END_RAW, 1995 }, 1996 .str_sec = "\0__!int", 1997 .str_sec_size = sizeof("\0__!int"), 1998 .map_type = BPF_MAP_TYPE_ARRAY, 1999 .map_name = "typedef_check_btf", 2000 .key_size = sizeof(int), 2001 .value_size = sizeof(int), 2002 .key_type_id = 1, 2003 .value_type_id = 1, 2004 .max_entries = 4, 2005 .btf_load_err = true, 2006 .err_str = "Invalid name", 2007 }, 2008 2009 { 2010 .descr = "ptr type (invalid name, name_off <> 0)", 2011 .raw_types = { 2012 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2013 BTF_TYPE_ENC(NAME_TBD, 2014 BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 1), /* [2] */ 2015 BTF_END_RAW, 2016 }, 2017 .str_sec = "\0__int", 2018 .str_sec_size = sizeof("\0__int"), 2019 .map_type = BPF_MAP_TYPE_ARRAY, 2020 .map_name = "ptr_type_check_btf", 2021 .key_size = sizeof(int), 2022 .value_size = sizeof(int), 2023 .key_type_id = 1, 2024 .value_type_id = 1, 2025 .max_entries = 4, 2026 .btf_load_err = true, 2027 .err_str = "Invalid name", 2028 }, 2029 2030 { 2031 .descr = "volatile type (invalid name, name_off <> 0)", 2032 .raw_types = { 2033 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2034 BTF_TYPE_ENC(NAME_TBD, 2035 BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), 1), /* [2] */ 2036 BTF_END_RAW, 2037 }, 2038 .str_sec = "\0__int", 2039 .str_sec_size = sizeof("\0__int"), 2040 .map_type = BPF_MAP_TYPE_ARRAY, 2041 .map_name = "volatile_type_check_btf", 2042 .key_size = sizeof(int), 2043 .value_size = sizeof(int), 2044 .key_type_id = 1, 2045 .value_type_id = 1, 2046 .max_entries = 4, 2047 .btf_load_err = true, 2048 .err_str = "Invalid name", 2049 }, 2050 2051 { 2052 .descr = "const type (invalid name, name_off <> 0)", 2053 .raw_types = { 2054 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2055 BTF_TYPE_ENC(NAME_TBD, 2056 BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1), /* [2] */ 2057 BTF_END_RAW, 2058 }, 2059 .str_sec = "\0__int", 2060 .str_sec_size = sizeof("\0__int"), 2061 .map_type = BPF_MAP_TYPE_ARRAY, 2062 .map_name = "const_type_check_btf", 2063 .key_size = sizeof(int), 2064 .value_size = sizeof(int), 2065 .key_type_id = 1, 2066 .value_type_id = 1, 2067 .max_entries = 4, 2068 .btf_load_err = true, 2069 .err_str = "Invalid name", 2070 }, 2071 2072 { 2073 .descr = "restrict type (invalid name, name_off <> 0)", 2074 .raw_types = { 2075 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2076 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 1), /* [2] */ 2077 BTF_TYPE_ENC(NAME_TBD, 2078 BTF_INFO_ENC(BTF_KIND_RESTRICT, 0, 0), 2), /* [3] */ 2079 BTF_END_RAW, 2080 }, 2081 .str_sec = "\0__int", 2082 .str_sec_size = sizeof("\0__int"), 2083 .map_type = BPF_MAP_TYPE_ARRAY, 2084 .map_name = "restrict_type_check_btf", 2085 .key_size = sizeof(int), 2086 .value_size = sizeof(int), 2087 .key_type_id = 1, 2088 .value_type_id = 1, 2089 .max_entries = 4, 2090 .btf_load_err = true, 2091 .err_str = "Invalid name", 2092 }, 2093 2094 { 2095 .descr = "fwd type (invalid name, name_off = 0)", 2096 .raw_types = { 2097 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2098 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 0), /* [2] */ 2099 BTF_END_RAW, 2100 }, 2101 .str_sec = "\0__skb", 2102 .str_sec_size = sizeof("\0__skb"), 2103 .map_type = BPF_MAP_TYPE_ARRAY, 2104 .map_name = "fwd_type_check_btf", 2105 .key_size = sizeof(int), 2106 .value_size = sizeof(int), 2107 .key_type_id = 1, 2108 .value_type_id = 1, 2109 .max_entries = 4, 2110 .btf_load_err = true, 2111 .err_str = "Invalid name", 2112 }, 2113 2114 { 2115 .descr = "fwd type (invalid name, invalid identifier)", 2116 .raw_types = { 2117 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2118 BTF_TYPE_ENC(NAME_TBD, 2119 BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 0), /* [2] */ 2120 BTF_END_RAW, 2121 }, 2122 .str_sec = "\0__!skb", 2123 .str_sec_size = sizeof("\0__!skb"), 2124 .map_type = BPF_MAP_TYPE_ARRAY, 2125 .map_name = "fwd_type_check_btf", 2126 .key_size = sizeof(int), 2127 .value_size = sizeof(int), 2128 .key_type_id = 1, 2129 .value_type_id = 1, 2130 .max_entries = 4, 2131 .btf_load_err = true, 2132 .err_str = "Invalid name", 2133 }, 2134 2135 { 2136 .descr = "array type (invalid name, name_off <> 0)", 2137 .raw_types = { 2138 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2139 BTF_TYPE_ENC(NAME_TBD, 2140 BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 0), /* [2] */ 2141 BTF_ARRAY_ENC(1, 1, 4), 2142 BTF_END_RAW, 2143 }, 2144 .str_sec = "\0__skb", 2145 .str_sec_size = sizeof("\0__skb"), 2146 .map_type = BPF_MAP_TYPE_ARRAY, 2147 .map_name = "array_type_check_btf", 2148 .key_size = sizeof(int), 2149 .value_size = sizeof(int), 2150 .key_type_id = 1, 2151 .value_type_id = 1, 2152 .max_entries = 4, 2153 .btf_load_err = true, 2154 .err_str = "Invalid name", 2155 }, 2156 2157 { 2158 .descr = "struct type (name_off = 0)", 2159 .raw_types = { 2160 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2161 BTF_TYPE_ENC(0, 2162 BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */ 2163 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 2164 BTF_END_RAW, 2165 }, 2166 .str_sec = "\0A", 2167 .str_sec_size = sizeof("\0A"), 2168 .map_type = BPF_MAP_TYPE_ARRAY, 2169 .map_name = "struct_type_check_btf", 2170 .key_size = sizeof(int), 2171 .value_size = sizeof(int), 2172 .key_type_id = 1, 2173 .value_type_id = 1, 2174 .max_entries = 4, 2175 }, 2176 2177 { 2178 .descr = "struct type (invalid name, invalid identifier)", 2179 .raw_types = { 2180 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2181 BTF_TYPE_ENC(NAME_TBD, 2182 BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */ 2183 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 2184 BTF_END_RAW, 2185 }, 2186 .str_sec = "\0A!\0B", 2187 .str_sec_size = sizeof("\0A!\0B"), 2188 .map_type = BPF_MAP_TYPE_ARRAY, 2189 .map_name = "struct_type_check_btf", 2190 .key_size = sizeof(int), 2191 .value_size = sizeof(int), 2192 .key_type_id = 1, 2193 .value_type_id = 1, 2194 .max_entries = 4, 2195 .btf_load_err = true, 2196 .err_str = "Invalid name", 2197 }, 2198 2199 { 2200 .descr = "struct member (name_off = 0)", 2201 .raw_types = { 2202 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2203 BTF_TYPE_ENC(0, 2204 BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */ 2205 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 2206 BTF_END_RAW, 2207 }, 2208 .str_sec = "\0A", 2209 .str_sec_size = sizeof("\0A"), 2210 .map_type = BPF_MAP_TYPE_ARRAY, 2211 .map_name = "struct_type_check_btf", 2212 .key_size = sizeof(int), 2213 .value_size = sizeof(int), 2214 .key_type_id = 1, 2215 .value_type_id = 1, 2216 .max_entries = 4, 2217 }, 2218 2219 { 2220 .descr = "struct member (invalid name, invalid identifier)", 2221 .raw_types = { 2222 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2223 BTF_TYPE_ENC(NAME_TBD, 2224 BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */ 2225 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 2226 BTF_END_RAW, 2227 }, 2228 .str_sec = "\0A\0B*", 2229 .str_sec_size = sizeof("\0A\0B*"), 2230 .map_type = BPF_MAP_TYPE_ARRAY, 2231 .map_name = "struct_type_check_btf", 2232 .key_size = sizeof(int), 2233 .value_size = sizeof(int), 2234 .key_type_id = 1, 2235 .value_type_id = 1, 2236 .max_entries = 4, 2237 .btf_load_err = true, 2238 .err_str = "Invalid name", 2239 }, 2240 2241 { 2242 .descr = "enum type (name_off = 0)", 2243 .raw_types = { 2244 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2245 BTF_TYPE_ENC(0, 2246 BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 2247 sizeof(int)), /* [2] */ 2248 BTF_ENUM_ENC(NAME_TBD, 0), 2249 BTF_END_RAW, 2250 }, 2251 .str_sec = "\0A\0B", 2252 .str_sec_size = sizeof("\0A\0B"), 2253 .map_type = BPF_MAP_TYPE_ARRAY, 2254 .map_name = "enum_type_check_btf", 2255 .key_size = sizeof(int), 2256 .value_size = sizeof(int), 2257 .key_type_id = 1, 2258 .value_type_id = 1, 2259 .max_entries = 4, 2260 }, 2261 2262 { 2263 .descr = "enum type (invalid name, invalid identifier)", 2264 .raw_types = { 2265 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2266 BTF_TYPE_ENC(NAME_TBD, 2267 BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 2268 sizeof(int)), /* [2] */ 2269 BTF_ENUM_ENC(NAME_TBD, 0), 2270 BTF_END_RAW, 2271 }, 2272 .str_sec = "\0A!\0B", 2273 .str_sec_size = sizeof("\0A!\0B"), 2274 .map_type = BPF_MAP_TYPE_ARRAY, 2275 .map_name = "enum_type_check_btf", 2276 .key_size = sizeof(int), 2277 .value_size = sizeof(int), 2278 .key_type_id = 1, 2279 .value_type_id = 1, 2280 .max_entries = 4, 2281 .btf_load_err = true, 2282 .err_str = "Invalid name", 2283 }, 2284 2285 { 2286 .descr = "enum member (invalid name, name_off = 0)", 2287 .raw_types = { 2288 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2289 BTF_TYPE_ENC(0, 2290 BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 2291 sizeof(int)), /* [2] */ 2292 BTF_ENUM_ENC(0, 0), 2293 BTF_END_RAW, 2294 }, 2295 .str_sec = "", 2296 .str_sec_size = sizeof(""), 2297 .map_type = BPF_MAP_TYPE_ARRAY, 2298 .map_name = "enum_type_check_btf", 2299 .key_size = sizeof(int), 2300 .value_size = sizeof(int), 2301 .key_type_id = 1, 2302 .value_type_id = 1, 2303 .max_entries = 4, 2304 .btf_load_err = true, 2305 .err_str = "Invalid name", 2306 }, 2307 2308 { 2309 .descr = "enum member (invalid name, invalid identifier)", 2310 .raw_types = { 2311 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2312 BTF_TYPE_ENC(0, 2313 BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 2314 sizeof(int)), /* [2] */ 2315 BTF_ENUM_ENC(NAME_TBD, 0), 2316 BTF_END_RAW, 2317 }, 2318 .str_sec = "\0A!", 2319 .str_sec_size = sizeof("\0A!"), 2320 .map_type = BPF_MAP_TYPE_ARRAY, 2321 .map_name = "enum_type_check_btf", 2322 .key_size = sizeof(int), 2323 .value_size = sizeof(int), 2324 .key_type_id = 1, 2325 .value_type_id = 1, 2326 .max_entries = 4, 2327 .btf_load_err = true, 2328 .err_str = "Invalid name", 2329 }, 2330 { 2331 .descr = "arraymap invalid btf key (a bit field)", 2332 .raw_types = { 2333 /* int */ /* [1] */ 2334 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 2335 /* 32 bit int with 32 bit offset */ /* [2] */ 2336 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 32, 32, 8), 2337 BTF_END_RAW, 2338 }, 2339 .str_sec = "", 2340 .str_sec_size = sizeof(""), 2341 .map_type = BPF_MAP_TYPE_ARRAY, 2342 .map_name = "array_map_check_btf", 2343 .key_size = sizeof(int), 2344 .value_size = sizeof(int), 2345 .key_type_id = 2, 2346 .value_type_id = 1, 2347 .max_entries = 4, 2348 .map_create_err = true, 2349 }, 2350 2351 { 2352 .descr = "arraymap invalid btf key (!= 32 bits)", 2353 .raw_types = { 2354 /* int */ /* [1] */ 2355 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 2356 /* 16 bit int with 0 bit offset */ /* [2] */ 2357 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 16, 2), 2358 BTF_END_RAW, 2359 }, 2360 .str_sec = "", 2361 .str_sec_size = sizeof(""), 2362 .map_type = BPF_MAP_TYPE_ARRAY, 2363 .map_name = "array_map_check_btf", 2364 .key_size = sizeof(int), 2365 .value_size = sizeof(int), 2366 .key_type_id = 2, 2367 .value_type_id = 1, 2368 .max_entries = 4, 2369 .map_create_err = true, 2370 }, 2371 2372 { 2373 .descr = "arraymap invalid btf value (too small)", 2374 .raw_types = { 2375 /* int */ /* [1] */ 2376 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 2377 BTF_END_RAW, 2378 }, 2379 .str_sec = "", 2380 .str_sec_size = sizeof(""), 2381 .map_type = BPF_MAP_TYPE_ARRAY, 2382 .map_name = "array_map_check_btf", 2383 .key_size = sizeof(int), 2384 /* btf_value_size < map->value_size */ 2385 .value_size = sizeof(__u64), 2386 .key_type_id = 1, 2387 .value_type_id = 1, 2388 .max_entries = 4, 2389 .map_create_err = true, 2390 }, 2391 2392 { 2393 .descr = "arraymap invalid btf value (too big)", 2394 .raw_types = { 2395 /* int */ /* [1] */ 2396 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 2397 BTF_END_RAW, 2398 }, 2399 .str_sec = "", 2400 .str_sec_size = sizeof(""), 2401 .map_type = BPF_MAP_TYPE_ARRAY, 2402 .map_name = "array_map_check_btf", 2403 .key_size = sizeof(int), 2404 /* btf_value_size > map->value_size */ 2405 .value_size = sizeof(__u16), 2406 .key_type_id = 1, 2407 .value_type_id = 1, 2408 .max_entries = 4, 2409 .map_create_err = true, 2410 }, 2411 2412 { 2413 .descr = "func proto (int (*)(int, unsigned int))", 2414 .raw_types = { 2415 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2416 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2417 /* int (*)(int, unsigned int) */ 2418 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 2419 BTF_FUNC_PROTO_ARG_ENC(0, 1), 2420 BTF_FUNC_PROTO_ARG_ENC(0, 2), 2421 BTF_END_RAW, 2422 }, 2423 .str_sec = "", 2424 .str_sec_size = sizeof(""), 2425 .map_type = BPF_MAP_TYPE_ARRAY, 2426 .map_name = "func_proto_type_check_btf", 2427 .key_size = sizeof(int), 2428 .value_size = sizeof(int), 2429 .key_type_id = 1, 2430 .value_type_id = 1, 2431 .max_entries = 4, 2432 }, 2433 2434 { 2435 .descr = "func proto (vararg)", 2436 .raw_types = { 2437 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2438 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2439 /* void (*)(int, unsigned int, ...) */ 2440 BTF_FUNC_PROTO_ENC(0, 3), /* [3] */ 2441 BTF_FUNC_PROTO_ARG_ENC(0, 1), 2442 BTF_FUNC_PROTO_ARG_ENC(0, 2), 2443 BTF_FUNC_PROTO_ARG_ENC(0, 0), 2444 BTF_END_RAW, 2445 }, 2446 .str_sec = "", 2447 .str_sec_size = sizeof(""), 2448 .map_type = BPF_MAP_TYPE_ARRAY, 2449 .map_name = "func_proto_type_check_btf", 2450 .key_size = sizeof(int), 2451 .value_size = sizeof(int), 2452 .key_type_id = 1, 2453 .value_type_id = 1, 2454 .max_entries = 4, 2455 }, 2456 2457 { 2458 .descr = "func proto (vararg with name)", 2459 .raw_types = { 2460 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2461 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2462 /* void (*)(int a, unsigned int b, ... c) */ 2463 BTF_FUNC_PROTO_ENC(0, 3), /* [3] */ 2464 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 2465 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 2466 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 0), 2467 BTF_END_RAW, 2468 }, 2469 .str_sec = "\0a\0b\0c", 2470 .str_sec_size = sizeof("\0a\0b\0c"), 2471 .map_type = BPF_MAP_TYPE_ARRAY, 2472 .map_name = "func_proto_type_check_btf", 2473 .key_size = sizeof(int), 2474 .value_size = sizeof(int), 2475 .key_type_id = 1, 2476 .value_type_id = 1, 2477 .max_entries = 4, 2478 .btf_load_err = true, 2479 .err_str = "Invalid arg#3", 2480 }, 2481 2482 { 2483 .descr = "func proto (arg after vararg)", 2484 .raw_types = { 2485 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2486 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2487 /* void (*)(int a, ..., unsigned int b) */ 2488 BTF_FUNC_PROTO_ENC(0, 3), /* [3] */ 2489 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 2490 BTF_FUNC_PROTO_ARG_ENC(0, 0), 2491 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 2492 BTF_END_RAW, 2493 }, 2494 .str_sec = "\0a\0b", 2495 .str_sec_size = sizeof("\0a\0b"), 2496 .map_type = BPF_MAP_TYPE_ARRAY, 2497 .map_name = "func_proto_type_check_btf", 2498 .key_size = sizeof(int), 2499 .value_size = sizeof(int), 2500 .key_type_id = 1, 2501 .value_type_id = 1, 2502 .max_entries = 4, 2503 .btf_load_err = true, 2504 .err_str = "Invalid arg#2", 2505 }, 2506 2507 { 2508 .descr = "func proto (CONST=>TYPEDEF=>PTR=>FUNC_PROTO)", 2509 .raw_types = { 2510 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2511 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2512 /* typedef void (*func_ptr)(int, unsigned int) */ 2513 BTF_TYPEDEF_ENC(NAME_TBD, 5), /* [3] */ 2514 /* const func_ptr */ 2515 BTF_CONST_ENC(3), /* [4] */ 2516 BTF_PTR_ENC(6), /* [5] */ 2517 BTF_FUNC_PROTO_ENC(0, 2), /* [6] */ 2518 BTF_FUNC_PROTO_ARG_ENC(0, 1), 2519 BTF_FUNC_PROTO_ARG_ENC(0, 2), 2520 BTF_END_RAW, 2521 }, 2522 .str_sec = "\0func_ptr", 2523 .str_sec_size = sizeof("\0func_ptr"), 2524 .map_type = BPF_MAP_TYPE_ARRAY, 2525 .map_name = "func_proto_type_check_btf", 2526 .key_size = sizeof(int), 2527 .value_size = sizeof(int), 2528 .key_type_id = 1, 2529 .value_type_id = 1, 2530 .max_entries = 4, 2531 }, 2532 2533 { 2534 .descr = "func proto (TYPEDEF=>FUNC_PROTO)", 2535 .raw_types = { 2536 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2537 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2538 BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */ 2539 BTF_FUNC_PROTO_ENC(0, 2), /* [4] */ 2540 BTF_FUNC_PROTO_ARG_ENC(0, 1), 2541 BTF_FUNC_PROTO_ARG_ENC(0, 2), 2542 BTF_END_RAW, 2543 }, 2544 .str_sec = "\0func_typedef", 2545 .str_sec_size = sizeof("\0func_typedef"), 2546 .map_type = BPF_MAP_TYPE_ARRAY, 2547 .map_name = "func_proto_type_check_btf", 2548 .key_size = sizeof(int), 2549 .value_size = sizeof(int), 2550 .key_type_id = 1, 2551 .value_type_id = 1, 2552 .max_entries = 4, 2553 }, 2554 2555 { 2556 .descr = "func proto (btf_resolve(arg))", 2557 .raw_types = { 2558 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2559 /* void (*)(const void *) */ 2560 BTF_FUNC_PROTO_ENC(0, 1), /* [2] */ 2561 BTF_FUNC_PROTO_ARG_ENC(0, 3), 2562 BTF_CONST_ENC(4), /* [3] */ 2563 BTF_PTR_ENC(0), /* [4] */ 2564 BTF_END_RAW, 2565 }, 2566 .str_sec = "", 2567 .str_sec_size = sizeof(""), 2568 .map_type = BPF_MAP_TYPE_ARRAY, 2569 .map_name = "func_proto_type_check_btf", 2570 .key_size = sizeof(int), 2571 .value_size = sizeof(int), 2572 .key_type_id = 1, 2573 .value_type_id = 1, 2574 .max_entries = 4, 2575 }, 2576 2577 { 2578 .descr = "func proto (Not all arg has name)", 2579 .raw_types = { 2580 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2581 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2582 /* void (*)(int, unsigned int b) */ 2583 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ 2584 BTF_FUNC_PROTO_ARG_ENC(0, 1), 2585 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 2586 BTF_END_RAW, 2587 }, 2588 .str_sec = "\0b", 2589 .str_sec_size = sizeof("\0b"), 2590 .map_type = BPF_MAP_TYPE_ARRAY, 2591 .map_name = "func_proto_type_check_btf", 2592 .key_size = sizeof(int), 2593 .value_size = sizeof(int), 2594 .key_type_id = 1, 2595 .value_type_id = 1, 2596 .max_entries = 4, 2597 }, 2598 2599 { 2600 .descr = "func proto (Bad arg name_off)", 2601 .raw_types = { 2602 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2603 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2604 /* void (*)(int a, unsigned int <bad_name_off>) */ 2605 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ 2606 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 2607 BTF_FUNC_PROTO_ARG_ENC(0x0fffffff, 2), 2608 BTF_END_RAW, 2609 }, 2610 .str_sec = "\0a", 2611 .str_sec_size = sizeof("\0a"), 2612 .map_type = BPF_MAP_TYPE_ARRAY, 2613 .map_name = "func_proto_type_check_btf", 2614 .key_size = sizeof(int), 2615 .value_size = sizeof(int), 2616 .key_type_id = 1, 2617 .value_type_id = 1, 2618 .max_entries = 4, 2619 .btf_load_err = true, 2620 .err_str = "Invalid arg#2", 2621 }, 2622 2623 { 2624 .descr = "func proto (Bad arg name)", 2625 .raw_types = { 2626 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2627 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2628 /* void (*)(int a, unsigned int !!!) */ 2629 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ 2630 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 2631 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 2632 BTF_END_RAW, 2633 }, 2634 .str_sec = "\0a\0!!!", 2635 .str_sec_size = sizeof("\0a\0!!!"), 2636 .map_type = BPF_MAP_TYPE_ARRAY, 2637 .map_name = "func_proto_type_check_btf", 2638 .key_size = sizeof(int), 2639 .value_size = sizeof(int), 2640 .key_type_id = 1, 2641 .value_type_id = 1, 2642 .max_entries = 4, 2643 .btf_load_err = true, 2644 .err_str = "Invalid arg#2", 2645 }, 2646 2647 { 2648 .descr = "func proto (Invalid return type)", 2649 .raw_types = { 2650 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2651 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2652 /* <bad_ret_type> (*)(int, unsigned int) */ 2653 BTF_FUNC_PROTO_ENC(100, 2), /* [3] */ 2654 BTF_FUNC_PROTO_ARG_ENC(0, 1), 2655 BTF_FUNC_PROTO_ARG_ENC(0, 2), 2656 BTF_END_RAW, 2657 }, 2658 .str_sec = "", 2659 .str_sec_size = sizeof(""), 2660 .map_type = BPF_MAP_TYPE_ARRAY, 2661 .map_name = "func_proto_type_check_btf", 2662 .key_size = sizeof(int), 2663 .value_size = sizeof(int), 2664 .key_type_id = 1, 2665 .value_type_id = 1, 2666 .max_entries = 4, 2667 .btf_load_err = true, 2668 .err_str = "Invalid return type", 2669 }, 2670 2671 { 2672 .descr = "func proto (with func name)", 2673 .raw_types = { 2674 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2675 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2676 /* void func_proto(int, unsigned int) */ 2677 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, 2), 0), /* [3] */ 2678 BTF_FUNC_PROTO_ARG_ENC(0, 1), 2679 BTF_FUNC_PROTO_ARG_ENC(0, 2), 2680 BTF_END_RAW, 2681 }, 2682 .str_sec = "\0func_proto", 2683 .str_sec_size = sizeof("\0func_proto"), 2684 .map_type = BPF_MAP_TYPE_ARRAY, 2685 .map_name = "func_proto_type_check_btf", 2686 .key_size = sizeof(int), 2687 .value_size = sizeof(int), 2688 .key_type_id = 1, 2689 .value_type_id = 1, 2690 .max_entries = 4, 2691 .btf_load_err = true, 2692 .err_str = "Invalid name", 2693 }, 2694 2695 { 2696 .descr = "func proto (const void arg)", 2697 .raw_types = { 2698 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2699 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2700 /* void (*)(const void) */ 2701 BTF_FUNC_PROTO_ENC(0, 1), /* [3] */ 2702 BTF_FUNC_PROTO_ARG_ENC(0, 4), 2703 BTF_CONST_ENC(0), /* [4] */ 2704 BTF_END_RAW, 2705 }, 2706 .str_sec = "", 2707 .str_sec_size = sizeof(""), 2708 .map_type = BPF_MAP_TYPE_ARRAY, 2709 .map_name = "func_proto_type_check_btf", 2710 .key_size = sizeof(int), 2711 .value_size = sizeof(int), 2712 .key_type_id = 1, 2713 .value_type_id = 1, 2714 .max_entries = 4, 2715 .btf_load_err = true, 2716 .err_str = "Invalid arg#1", 2717 }, 2718 2719 { 2720 .descr = "func (void func(int a, unsigned int b))", 2721 .raw_types = { 2722 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2723 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2724 /* void (*)(int a, unsigned int b) */ 2725 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ 2726 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 2727 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 2728 /* void func(int a, unsigned int b) */ 2729 BTF_FUNC_ENC(NAME_TBD, 3), /* [4] */ 2730 BTF_END_RAW, 2731 }, 2732 .str_sec = "\0a\0b\0func", 2733 .str_sec_size = sizeof("\0a\0b\0func"), 2734 .map_type = BPF_MAP_TYPE_ARRAY, 2735 .map_name = "func_type_check_btf", 2736 .key_size = sizeof(int), 2737 .value_size = sizeof(int), 2738 .key_type_id = 1, 2739 .value_type_id = 1, 2740 .max_entries = 4, 2741 }, 2742 2743 { 2744 .descr = "func (No func name)", 2745 .raw_types = { 2746 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2747 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2748 /* void (*)(int a, unsigned int b) */ 2749 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ 2750 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 2751 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 2752 /* void <no_name>(int a, unsigned int b) */ 2753 BTF_FUNC_ENC(0, 3), /* [4] */ 2754 BTF_END_RAW, 2755 }, 2756 .str_sec = "\0a\0b", 2757 .str_sec_size = sizeof("\0a\0b"), 2758 .map_type = BPF_MAP_TYPE_ARRAY, 2759 .map_name = "func_type_check_btf", 2760 .key_size = sizeof(int), 2761 .value_size = sizeof(int), 2762 .key_type_id = 1, 2763 .value_type_id = 1, 2764 .max_entries = 4, 2765 .btf_load_err = true, 2766 .err_str = "Invalid name", 2767 }, 2768 2769 { 2770 .descr = "func (Invalid func name)", 2771 .raw_types = { 2772 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2773 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2774 /* void (*)(int a, unsigned int b) */ 2775 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ 2776 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 2777 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 2778 /* void !!!(int a, unsigned int b) */ 2779 BTF_FUNC_ENC(NAME_TBD, 3), /* [4] */ 2780 BTF_END_RAW, 2781 }, 2782 .str_sec = "\0a\0b\0!!!", 2783 .str_sec_size = sizeof("\0a\0b\0!!!"), 2784 .map_type = BPF_MAP_TYPE_ARRAY, 2785 .map_name = "func_type_check_btf", 2786 .key_size = sizeof(int), 2787 .value_size = sizeof(int), 2788 .key_type_id = 1, 2789 .value_type_id = 1, 2790 .max_entries = 4, 2791 .btf_load_err = true, 2792 .err_str = "Invalid name", 2793 }, 2794 2795 { 2796 .descr = "func (Some arg has no name)", 2797 .raw_types = { 2798 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2799 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2800 /* void (*)(int a, unsigned int) */ 2801 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ 2802 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 2803 BTF_FUNC_PROTO_ARG_ENC(0, 2), 2804 /* void func(int a, unsigned int) */ 2805 BTF_FUNC_ENC(NAME_TBD, 3), /* [4] */ 2806 BTF_END_RAW, 2807 }, 2808 .str_sec = "\0a\0func", 2809 .str_sec_size = sizeof("\0a\0func"), 2810 .map_type = BPF_MAP_TYPE_ARRAY, 2811 .map_name = "func_type_check_btf", 2812 .key_size = sizeof(int), 2813 .value_size = sizeof(int), 2814 .key_type_id = 1, 2815 .value_type_id = 1, 2816 .max_entries = 4, 2817 .btf_load_err = true, 2818 .err_str = "Invalid arg#2", 2819 }, 2820 2821 { 2822 .descr = "func (Non zero vlen)", 2823 .raw_types = { 2824 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2825 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ 2826 /* void (*)(int a, unsigned int b) */ 2827 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ 2828 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 2829 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 2830 /* void func(int a, unsigned int b) */ 2831 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC, 0, 2), 3), /* [4] */ 2832 BTF_END_RAW, 2833 }, 2834 .str_sec = "\0a\0b\0func", 2835 .str_sec_size = sizeof("\0a\0b\0func"), 2836 .map_type = BPF_MAP_TYPE_ARRAY, 2837 .map_name = "func_type_check_btf", 2838 .key_size = sizeof(int), 2839 .value_size = sizeof(int), 2840 .key_type_id = 1, 2841 .value_type_id = 1, 2842 .max_entries = 4, 2843 .btf_load_err = true, 2844 .err_str = "Invalid func linkage", 2845 }, 2846 2847 { 2848 .descr = "func (Not referring to FUNC_PROTO)", 2849 .raw_types = { 2850 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2851 BTF_FUNC_ENC(NAME_TBD, 1), /* [2] */ 2852 BTF_END_RAW, 2853 }, 2854 .str_sec = "\0func", 2855 .str_sec_size = sizeof("\0func"), 2856 .map_type = BPF_MAP_TYPE_ARRAY, 2857 .map_name = "func_type_check_btf", 2858 .key_size = sizeof(int), 2859 .value_size = sizeof(int), 2860 .key_type_id = 1, 2861 .value_type_id = 1, 2862 .max_entries = 4, 2863 .btf_load_err = true, 2864 .err_str = "Invalid type_id", 2865 }, 2866 2867 { 2868 .descr = "invalid int kind_flag", 2869 .raw_types = { 2870 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2871 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_INT, 1, 0), 4), /* [2] */ 2872 BTF_INT_ENC(0, 0, 32), 2873 BTF_END_RAW, 2874 }, 2875 BTF_STR_SEC(""), 2876 .map_type = BPF_MAP_TYPE_ARRAY, 2877 .map_name = "int_type_check_btf", 2878 .key_size = sizeof(int), 2879 .value_size = sizeof(int), 2880 .key_type_id = 1, 2881 .value_type_id = 1, 2882 .max_entries = 4, 2883 .btf_load_err = true, 2884 .err_str = "Invalid btf_info kind_flag", 2885 }, 2886 2887 { 2888 .descr = "invalid ptr kind_flag", 2889 .raw_types = { 2890 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2891 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 1, 0), 1), /* [2] */ 2892 BTF_END_RAW, 2893 }, 2894 BTF_STR_SEC(""), 2895 .map_type = BPF_MAP_TYPE_ARRAY, 2896 .map_name = "ptr_type_check_btf", 2897 .key_size = sizeof(int), 2898 .value_size = sizeof(int), 2899 .key_type_id = 1, 2900 .value_type_id = 1, 2901 .max_entries = 4, 2902 .btf_load_err = true, 2903 .err_str = "Invalid btf_info kind_flag", 2904 }, 2905 2906 { 2907 .descr = "invalid array kind_flag", 2908 .raw_types = { 2909 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2910 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 1, 0), 0), /* [2] */ 2911 BTF_ARRAY_ENC(1, 1, 1), 2912 BTF_END_RAW, 2913 }, 2914 BTF_STR_SEC(""), 2915 .map_type = BPF_MAP_TYPE_ARRAY, 2916 .map_name = "array_type_check_btf", 2917 .key_size = sizeof(int), 2918 .value_size = sizeof(int), 2919 .key_type_id = 1, 2920 .value_type_id = 1, 2921 .max_entries = 4, 2922 .btf_load_err = true, 2923 .err_str = "Invalid btf_info kind_flag", 2924 }, 2925 2926 { 2927 .descr = "valid fwd kind_flag", 2928 .raw_types = { 2929 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2930 BTF_TYPE_ENC(NAME_TBD, 2931 BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [2] */ 2932 BTF_END_RAW, 2933 }, 2934 BTF_STR_SEC("\0A"), 2935 .map_type = BPF_MAP_TYPE_ARRAY, 2936 .map_name = "fwd_type_check_btf", 2937 .key_size = sizeof(int), 2938 .value_size = sizeof(int), 2939 .key_type_id = 1, 2940 .value_type_id = 1, 2941 .max_entries = 4, 2942 }, 2943 2944 { 2945 .descr = "invalid typedef kind_flag", 2946 .raw_types = { 2947 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2948 BTF_TYPE_ENC(NAME_TBD, 2949 BTF_INFO_ENC(BTF_KIND_TYPEDEF, 1, 0), 1), /* [2] */ 2950 BTF_END_RAW, 2951 }, 2952 BTF_STR_SEC("\0A"), 2953 .map_type = BPF_MAP_TYPE_ARRAY, 2954 .map_name = "typedef_type_check_btf", 2955 .key_size = sizeof(int), 2956 .value_size = sizeof(int), 2957 .key_type_id = 1, 2958 .value_type_id = 1, 2959 .max_entries = 4, 2960 .btf_load_err = true, 2961 .err_str = "Invalid btf_info kind_flag", 2962 }, 2963 2964 { 2965 .descr = "invalid volatile kind_flag", 2966 .raw_types = { 2967 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2968 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 1, 0), 1), /* [2] */ 2969 BTF_END_RAW, 2970 }, 2971 BTF_STR_SEC(""), 2972 .map_type = BPF_MAP_TYPE_ARRAY, 2973 .map_name = "volatile_type_check_btf", 2974 .key_size = sizeof(int), 2975 .value_size = sizeof(int), 2976 .key_type_id = 1, 2977 .value_type_id = 1, 2978 .max_entries = 4, 2979 .btf_load_err = true, 2980 .err_str = "Invalid btf_info kind_flag", 2981 }, 2982 2983 { 2984 .descr = "invalid const kind_flag", 2985 .raw_types = { 2986 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 2987 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 1, 0), 1), /* [2] */ 2988 BTF_END_RAW, 2989 }, 2990 BTF_STR_SEC(""), 2991 .map_type = BPF_MAP_TYPE_ARRAY, 2992 .map_name = "const_type_check_btf", 2993 .key_size = sizeof(int), 2994 .value_size = sizeof(int), 2995 .key_type_id = 1, 2996 .value_type_id = 1, 2997 .max_entries = 4, 2998 .btf_load_err = true, 2999 .err_str = "Invalid btf_info kind_flag", 3000 }, 3001 3002 { 3003 .descr = "invalid restrict kind_flag", 3004 .raw_types = { 3005 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3006 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_RESTRICT, 1, 0), 1), /* [2] */ 3007 BTF_END_RAW, 3008 }, 3009 BTF_STR_SEC(""), 3010 .map_type = BPF_MAP_TYPE_ARRAY, 3011 .map_name = "restrict_type_check_btf", 3012 .key_size = sizeof(int), 3013 .value_size = sizeof(int), 3014 .key_type_id = 1, 3015 .value_type_id = 1, 3016 .max_entries = 4, 3017 .btf_load_err = true, 3018 .err_str = "Invalid btf_info kind_flag", 3019 }, 3020 3021 { 3022 .descr = "invalid func kind_flag", 3023 .raw_types = { 3024 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3025 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, 0), 0), /* [2] */ 3026 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC, 1, 0), 2), /* [3] */ 3027 BTF_END_RAW, 3028 }, 3029 BTF_STR_SEC("\0A"), 3030 .map_type = BPF_MAP_TYPE_ARRAY, 3031 .map_name = "func_type_check_btf", 3032 .key_size = sizeof(int), 3033 .value_size = sizeof(int), 3034 .key_type_id = 1, 3035 .value_type_id = 1, 3036 .max_entries = 4, 3037 .btf_load_err = true, 3038 .err_str = "Invalid btf_info kind_flag", 3039 }, 3040 3041 { 3042 .descr = "invalid func_proto kind_flag", 3043 .raw_types = { 3044 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3045 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 1, 0), 0), /* [2] */ 3046 BTF_END_RAW, 3047 }, 3048 BTF_STR_SEC(""), 3049 .map_type = BPF_MAP_TYPE_ARRAY, 3050 .map_name = "func_proto_type_check_btf", 3051 .key_size = sizeof(int), 3052 .value_size = sizeof(int), 3053 .key_type_id = 1, 3054 .value_type_id = 1, 3055 .max_entries = 4, 3056 .btf_load_err = true, 3057 .err_str = "Invalid btf_info kind_flag", 3058 }, 3059 3060 { 3061 .descr = "valid struct, kind_flag, bitfield_size = 0", 3062 .raw_types = { 3063 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3064 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 8), /* [2] */ 3065 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(0, 0)), 3066 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(0, 32)), 3067 BTF_END_RAW, 3068 }, 3069 BTF_STR_SEC("\0A\0B"), 3070 .map_type = BPF_MAP_TYPE_ARRAY, 3071 .map_name = "struct_type_check_btf", 3072 .key_size = sizeof(int), 3073 .value_size = sizeof(int), 3074 .key_type_id = 1, 3075 .value_type_id = 1, 3076 .max_entries = 4, 3077 }, 3078 3079 { 3080 .descr = "valid struct, kind_flag, int member, bitfield_size != 0", 3081 .raw_types = { 3082 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3083 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [2] */ 3084 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)), 3085 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 4)), 3086 BTF_END_RAW, 3087 }, 3088 BTF_STR_SEC("\0A\0B"), 3089 .map_type = BPF_MAP_TYPE_ARRAY, 3090 .map_name = "struct_type_check_btf", 3091 .key_size = sizeof(int), 3092 .value_size = sizeof(int), 3093 .key_type_id = 1, 3094 .value_type_id = 1, 3095 .max_entries = 4, 3096 }, 3097 3098 { 3099 .descr = "valid union, kind_flag, int member, bitfield_size != 0", 3100 .raw_types = { 3101 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3102 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4), /* [2] */ 3103 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)), 3104 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)), 3105 BTF_END_RAW, 3106 }, 3107 BTF_STR_SEC("\0A\0B"), 3108 .map_type = BPF_MAP_TYPE_ARRAY, 3109 .map_name = "union_type_check_btf", 3110 .key_size = sizeof(int), 3111 .value_size = sizeof(int), 3112 .key_type_id = 1, 3113 .value_type_id = 1, 3114 .max_entries = 4, 3115 }, 3116 3117 { 3118 .descr = "valid struct, kind_flag, enum member, bitfield_size != 0", 3119 .raw_types = { 3120 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3121 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ 3122 BTF_ENUM_ENC(NAME_TBD, 0), 3123 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),/* [3] */ 3124 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)), 3125 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 4)), 3126 BTF_END_RAW, 3127 }, 3128 BTF_STR_SEC("\0A\0B\0C"), 3129 .map_type = BPF_MAP_TYPE_ARRAY, 3130 .map_name = "struct_type_check_btf", 3131 .key_size = sizeof(int), 3132 .value_size = sizeof(int), 3133 .key_type_id = 1, 3134 .value_type_id = 1, 3135 .max_entries = 4, 3136 }, 3137 3138 { 3139 .descr = "valid union, kind_flag, enum member, bitfield_size != 0", 3140 .raw_types = { 3141 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3142 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ 3143 BTF_ENUM_ENC(NAME_TBD, 0), 3144 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4), /* [3] */ 3145 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)), 3146 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)), 3147 BTF_END_RAW, 3148 }, 3149 BTF_STR_SEC("\0A\0B\0C"), 3150 .map_type = BPF_MAP_TYPE_ARRAY, 3151 .map_name = "union_type_check_btf", 3152 .key_size = sizeof(int), 3153 .value_size = sizeof(int), 3154 .key_type_id = 1, 3155 .value_type_id = 1, 3156 .max_entries = 4, 3157 }, 3158 3159 { 3160 .descr = "valid struct, kind_flag, typedef member, bitfield_size != 0", 3161 .raw_types = { 3162 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3163 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ 3164 BTF_ENUM_ENC(NAME_TBD, 0), 3165 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),/* [3] */ 3166 BTF_MEMBER_ENC(NAME_TBD, 4, BTF_MEMBER_OFFSET(4, 0)), 3167 BTF_MEMBER_ENC(NAME_TBD, 5, BTF_MEMBER_OFFSET(4, 4)), 3168 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [4] */ 3169 BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [5] */ 3170 BTF_END_RAW, 3171 }, 3172 BTF_STR_SEC("\0A\0B\0C\0D\0E"), 3173 .map_type = BPF_MAP_TYPE_ARRAY, 3174 .map_name = "struct_type_check_btf", 3175 .key_size = sizeof(int), 3176 .value_size = sizeof(int), 3177 .key_type_id = 1, 3178 .value_type_id = 1, 3179 .max_entries = 4, 3180 }, 3181 3182 { 3183 .descr = "valid union, kind_flag, typedef member, bitfield_size != 0", 3184 .raw_types = { 3185 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3186 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ 3187 BTF_ENUM_ENC(NAME_TBD, 0), 3188 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4), /* [3] */ 3189 BTF_MEMBER_ENC(NAME_TBD, 4, BTF_MEMBER_OFFSET(4, 0)), 3190 BTF_MEMBER_ENC(NAME_TBD, 5, BTF_MEMBER_OFFSET(4, 0)), 3191 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [4] */ 3192 BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [5] */ 3193 BTF_END_RAW, 3194 }, 3195 BTF_STR_SEC("\0A\0B\0C\0D\0E"), 3196 .map_type = BPF_MAP_TYPE_ARRAY, 3197 .map_name = "union_type_check_btf", 3198 .key_size = sizeof(int), 3199 .value_size = sizeof(int), 3200 .key_type_id = 1, 3201 .value_type_id = 1, 3202 .max_entries = 4, 3203 }, 3204 3205 { 3206 .descr = "invalid struct, kind_flag, bitfield_size greater than struct size", 3207 .raw_types = { 3208 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3209 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [2] */ 3210 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 0)), 3211 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 20)), 3212 BTF_END_RAW, 3213 }, 3214 BTF_STR_SEC("\0A\0B"), 3215 .map_type = BPF_MAP_TYPE_ARRAY, 3216 .map_name = "struct_type_check_btf", 3217 .key_size = sizeof(int), 3218 .value_size = sizeof(int), 3219 .key_type_id = 1, 3220 .value_type_id = 1, 3221 .max_entries = 4, 3222 .btf_load_err = true, 3223 .err_str = "Member exceeds struct_size", 3224 }, 3225 3226 { 3227 .descr = "invalid struct, kind_flag, bitfield base_type int not regular", 3228 .raw_types = { 3229 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3230 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 20, 4), /* [2] */ 3231 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [3] */ 3232 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(20, 0)), 3233 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(20, 20)), 3234 BTF_END_RAW, 3235 }, 3236 BTF_STR_SEC("\0A\0B"), 3237 .map_type = BPF_MAP_TYPE_ARRAY, 3238 .map_name = "struct_type_check_btf", 3239 .key_size = sizeof(int), 3240 .value_size = sizeof(int), 3241 .key_type_id = 1, 3242 .value_type_id = 1, 3243 .max_entries = 4, 3244 .btf_load_err = true, 3245 .err_str = "Invalid member base type", 3246 }, 3247 3248 { 3249 .descr = "invalid struct, kind_flag, base_type int not regular", 3250 .raw_types = { 3251 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3252 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 12, 4), /* [2] */ 3253 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [3] */ 3254 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(8, 0)), 3255 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(8, 8)), 3256 BTF_END_RAW, 3257 }, 3258 BTF_STR_SEC("\0A\0B"), 3259 .map_type = BPF_MAP_TYPE_ARRAY, 3260 .map_name = "struct_type_check_btf", 3261 .key_size = sizeof(int), 3262 .value_size = sizeof(int), 3263 .key_type_id = 1, 3264 .value_type_id = 1, 3265 .max_entries = 4, 3266 .btf_load_err = true, 3267 .err_str = "Invalid member base type", 3268 }, 3269 3270 { 3271 .descr = "invalid union, kind_flag, bitfield_size greater than struct size", 3272 .raw_types = { 3273 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3274 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 2), /* [2] */ 3275 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(8, 0)), 3276 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 0)), 3277 BTF_END_RAW, 3278 }, 3279 BTF_STR_SEC("\0A\0B"), 3280 .map_type = BPF_MAP_TYPE_ARRAY, 3281 .map_name = "union_type_check_btf", 3282 .key_size = sizeof(int), 3283 .value_size = sizeof(int), 3284 .key_type_id = 1, 3285 .value_type_id = 1, 3286 .max_entries = 4, 3287 .btf_load_err = true, 3288 .err_str = "Member exceeds struct_size", 3289 }, 3290 3291 { 3292 .descr = "invalid struct, kind_flag, int member, bitfield_size = 0, wrong byte alignment", 3293 .raw_types = { 3294 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3295 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 3296 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 12), /* [3] */ 3297 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), 3298 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 36)), 3299 BTF_END_RAW, 3300 }, 3301 BTF_STR_SEC("\0A\0B"), 3302 .map_type = BPF_MAP_TYPE_ARRAY, 3303 .map_name = "struct_type_check_btf", 3304 .key_size = sizeof(int), 3305 .value_size = sizeof(int), 3306 .key_type_id = 1, 3307 .value_type_id = 1, 3308 .max_entries = 4, 3309 .btf_load_err = true, 3310 .err_str = "Invalid member offset", 3311 }, 3312 3313 { 3314 .descr = "invalid struct, kind_flag, enum member, bitfield_size = 0, wrong byte alignment", 3315 .raw_types = { 3316 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3317 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 3318 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ 3319 BTF_ENUM_ENC(NAME_TBD, 0), 3320 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 12), /* [3] */ 3321 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), 3322 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 36)), 3323 BTF_END_RAW, 3324 }, 3325 BTF_STR_SEC("\0A\0B\0C"), 3326 .map_type = BPF_MAP_TYPE_ARRAY, 3327 .map_name = "struct_type_check_btf", 3328 .key_size = sizeof(int), 3329 .value_size = sizeof(int), 3330 .key_type_id = 1, 3331 .value_type_id = 1, 3332 .max_entries = 4, 3333 .btf_load_err = true, 3334 .err_str = "Invalid member offset", 3335 }, 3336 3337 { 3338 .descr = "128-bit int", 3339 .raw_types = { 3340 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3341 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16), /* [2] */ 3342 BTF_END_RAW, 3343 }, 3344 BTF_STR_SEC("\0A"), 3345 .map_type = BPF_MAP_TYPE_ARRAY, 3346 .map_name = "int_type_check_btf", 3347 .key_size = sizeof(int), 3348 .value_size = sizeof(int), 3349 .key_type_id = 1, 3350 .value_type_id = 1, 3351 .max_entries = 4, 3352 }, 3353 3354 { 3355 .descr = "struct, 128-bit int member", 3356 .raw_types = { 3357 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3358 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16), /* [2] */ 3359 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 16), /* [3] */ 3360 BTF_MEMBER_ENC(NAME_TBD, 2, 0), 3361 BTF_END_RAW, 3362 }, 3363 BTF_STR_SEC("\0A"), 3364 .map_type = BPF_MAP_TYPE_ARRAY, 3365 .map_name = "struct_type_check_btf", 3366 .key_size = sizeof(int), 3367 .value_size = sizeof(int), 3368 .key_type_id = 1, 3369 .value_type_id = 1, 3370 .max_entries = 4, 3371 }, 3372 3373 { 3374 .descr = "struct, 120-bit int member bitfield", 3375 .raw_types = { 3376 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3377 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 120, 16), /* [2] */ 3378 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 16), /* [3] */ 3379 BTF_MEMBER_ENC(NAME_TBD, 2, 0), 3380 BTF_END_RAW, 3381 }, 3382 BTF_STR_SEC("\0A"), 3383 .map_type = BPF_MAP_TYPE_ARRAY, 3384 .map_name = "struct_type_check_btf", 3385 .key_size = sizeof(int), 3386 .value_size = sizeof(int), 3387 .key_type_id = 1, 3388 .value_type_id = 1, 3389 .max_entries = 4, 3390 }, 3391 3392 { 3393 .descr = "struct, kind_flag, 128-bit int member", 3394 .raw_types = { 3395 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3396 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16), /* [2] */ 3397 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 16), /* [3] */ 3398 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), 3399 BTF_END_RAW, 3400 }, 3401 BTF_STR_SEC("\0A"), 3402 .map_type = BPF_MAP_TYPE_ARRAY, 3403 .map_name = "struct_type_check_btf", 3404 .key_size = sizeof(int), 3405 .value_size = sizeof(int), 3406 .key_type_id = 1, 3407 .value_type_id = 1, 3408 .max_entries = 4, 3409 }, 3410 3411 { 3412 .descr = "struct, kind_flag, 120-bit int member bitfield", 3413 .raw_types = { 3414 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3415 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16), /* [2] */ 3416 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 16), /* [3] */ 3417 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(120, 0)), 3418 BTF_END_RAW, 3419 }, 3420 BTF_STR_SEC("\0A"), 3421 .map_type = BPF_MAP_TYPE_ARRAY, 3422 .map_name = "struct_type_check_btf", 3423 .key_size = sizeof(int), 3424 .value_size = sizeof(int), 3425 .key_type_id = 1, 3426 .value_type_id = 1, 3427 .max_entries = 4, 3428 }, 3429 /* 3430 * typedef int arr_t[16]; 3431 * struct s { 3432 * arr_t *a; 3433 * }; 3434 */ 3435 { 3436 .descr = "struct->ptr->typedef->array->int size resolution", 3437 .raw_types = { 3438 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [1] */ 3439 BTF_MEMBER_ENC(NAME_TBD, 2, 0), 3440 BTF_PTR_ENC(3), /* [2] */ 3441 BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */ 3442 BTF_TYPE_ARRAY_ENC(5, 5, 16), /* [4] */ 3443 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [5] */ 3444 BTF_END_RAW, 3445 }, 3446 BTF_STR_SEC("\0s\0a\0arr_t"), 3447 .map_type = BPF_MAP_TYPE_ARRAY, 3448 .map_name = "ptr_mod_chain_size_resolve_map", 3449 .key_size = sizeof(int), 3450 .value_size = sizeof(int) * 16, 3451 .key_type_id = 5 /* int */, 3452 .value_type_id = 3 /* arr_t */, 3453 .max_entries = 4, 3454 }, 3455 /* 3456 * typedef int arr_t[16][8][4]; 3457 * struct s { 3458 * arr_t *a; 3459 * }; 3460 */ 3461 { 3462 .descr = "struct->ptr->typedef->multi-array->int size resolution", 3463 .raw_types = { 3464 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [1] */ 3465 BTF_MEMBER_ENC(NAME_TBD, 2, 0), 3466 BTF_PTR_ENC(3), /* [2] */ 3467 BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */ 3468 BTF_TYPE_ARRAY_ENC(5, 7, 16), /* [4] */ 3469 BTF_TYPE_ARRAY_ENC(6, 7, 8), /* [5] */ 3470 BTF_TYPE_ARRAY_ENC(7, 7, 4), /* [6] */ 3471 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [7] */ 3472 BTF_END_RAW, 3473 }, 3474 BTF_STR_SEC("\0s\0a\0arr_t"), 3475 .map_type = BPF_MAP_TYPE_ARRAY, 3476 .map_name = "multi_arr_size_resolve_map", 3477 .key_size = sizeof(int), 3478 .value_size = sizeof(int) * 16 * 8 * 4, 3479 .key_type_id = 7 /* int */, 3480 .value_type_id = 3 /* arr_t */, 3481 .max_entries = 4, 3482 }, 3483 /* 3484 * typedef int int_t; 3485 * typedef int_t arr3_t[4]; 3486 * typedef arr3_t arr2_t[8]; 3487 * typedef arr2_t arr1_t[16]; 3488 * struct s { 3489 * arr1_t *a; 3490 * }; 3491 */ 3492 { 3493 .descr = "typedef/multi-arr mix size resolution", 3494 .raw_types = { 3495 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [1] */ 3496 BTF_MEMBER_ENC(NAME_TBD, 2, 0), 3497 BTF_PTR_ENC(3), /* [2] */ 3498 BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */ 3499 BTF_TYPE_ARRAY_ENC(5, 10, 16), /* [4] */ 3500 BTF_TYPEDEF_ENC(NAME_TBD, 6), /* [5] */ 3501 BTF_TYPE_ARRAY_ENC(7, 10, 8), /* [6] */ 3502 BTF_TYPEDEF_ENC(NAME_TBD, 8), /* [7] */ 3503 BTF_TYPE_ARRAY_ENC(9, 10, 4), /* [8] */ 3504 BTF_TYPEDEF_ENC(NAME_TBD, 10), /* [9] */ 3505 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [10] */ 3506 BTF_END_RAW, 3507 }, 3508 BTF_STR_SEC("\0s\0a\0arr1_t\0arr2_t\0arr3_t\0int_t"), 3509 .map_type = BPF_MAP_TYPE_ARRAY, 3510 .map_name = "typedef_arra_mix_size_resolve_map", 3511 .key_size = sizeof(int), 3512 .value_size = sizeof(int) * 16 * 8 * 4, 3513 .key_type_id = 10 /* int */, 3514 .value_type_id = 3 /* arr_t */, 3515 .max_entries = 4, 3516 }, 3517 /* 3518 * elf .rodata section size 4 and btf .rodata section vlen 0. 3519 */ 3520 { 3521 .descr = "datasec: vlen == 0", 3522 .raw_types = { 3523 /* int */ 3524 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3525 /* .rodata section */ 3526 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 0), 4), 3527 /* [2] */ 3528 BTF_END_RAW, 3529 }, 3530 BTF_STR_SEC("\0.rodata"), 3531 .map_type = BPF_MAP_TYPE_ARRAY, 3532 .key_size = sizeof(int), 3533 .value_size = sizeof(int), 3534 .key_type_id = 1, 3535 .value_type_id = 1, 3536 .max_entries = 1, 3537 }, 3538 { 3539 .descr = "datasec: name '?.foo bar:buz' is ok", 3540 .raw_types = { 3541 /* int */ 3542 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3543 /* VAR x */ /* [2] */ 3544 BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), 1), 3545 BTF_VAR_STATIC, 3546 /* DATASEC ?.data */ /* [3] */ 3547 BTF_TYPE_ENC(3, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 3548 BTF_VAR_SECINFO_ENC(2, 0, 4), 3549 BTF_END_RAW, 3550 }, 3551 BTF_STR_SEC("\0x\0?.foo bar:buz"), 3552 }, 3553 { 3554 .descr = "datasec: name with non-printable first char not is ok", 3555 .raw_types = { 3556 /* int */ 3557 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3558 /* VAR x */ /* [2] */ 3559 BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), 1), 3560 BTF_VAR_STATIC, 3561 /* DATASEC ?.data */ /* [3] */ 3562 BTF_TYPE_ENC(3, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 3563 BTF_VAR_SECINFO_ENC(2, 0, 4), 3564 BTF_END_RAW, 3565 }, 3566 BTF_STR_SEC("\0x\0\7foo"), 3567 .err_str = "Invalid name", 3568 .btf_load_err = true, 3569 }, 3570 { 3571 .descr = "datasec: name '\\0' is not ok", 3572 .raw_types = { 3573 /* int */ 3574 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3575 /* VAR x */ /* [2] */ 3576 BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), 1), 3577 BTF_VAR_STATIC, 3578 /* DATASEC \0 */ /* [3] */ 3579 BTF_TYPE_ENC(3, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 3580 BTF_VAR_SECINFO_ENC(2, 0, 4), 3581 BTF_END_RAW, 3582 }, 3583 BTF_STR_SEC("\0x\0"), 3584 .err_str = "Invalid name", 3585 .btf_load_err = true, 3586 }, 3587 { 3588 .descr = "type name '?foo' is not ok", 3589 .raw_types = { 3590 /* union ?foo; */ 3591 BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [1] */ 3592 BTF_END_RAW, 3593 }, 3594 BTF_STR_SEC("\0?foo"), 3595 .err_str = "Invalid name", 3596 .btf_load_err = true, 3597 }, 3598 3599 { 3600 .descr = "float test #1, well-formed", 3601 .raw_types = { 3602 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 3603 /* [1] */ 3604 BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [2] */ 3605 BTF_TYPE_FLOAT_ENC(NAME_TBD, 4), /* [3] */ 3606 BTF_TYPE_FLOAT_ENC(NAME_TBD, 8), /* [4] */ 3607 BTF_TYPE_FLOAT_ENC(NAME_TBD, 12), /* [5] */ 3608 BTF_TYPE_FLOAT_ENC(NAME_TBD, 16), /* [6] */ 3609 BTF_STRUCT_ENC(NAME_TBD, 5, 48), /* [7] */ 3610 BTF_MEMBER_ENC(NAME_TBD, 2, 0), 3611 BTF_MEMBER_ENC(NAME_TBD, 3, 32), 3612 BTF_MEMBER_ENC(NAME_TBD, 4, 64), 3613 BTF_MEMBER_ENC(NAME_TBD, 5, 128), 3614 BTF_MEMBER_ENC(NAME_TBD, 6, 256), 3615 BTF_END_RAW, 3616 }, 3617 BTF_STR_SEC("\0int\0_Float16\0float\0double\0_Float80\0long_double" 3618 "\0floats\0a\0b\0c\0d\0e"), 3619 .map_type = BPF_MAP_TYPE_ARRAY, 3620 .map_name = "float_type_check_btf", 3621 .key_size = sizeof(int), 3622 .value_size = 48, 3623 .key_type_id = 1, 3624 .value_type_id = 7, 3625 .max_entries = 1, 3626 }, 3627 { 3628 .descr = "float test #2, invalid vlen", 3629 .raw_types = { 3630 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 3631 /* [1] */ 3632 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FLOAT, 0, 1), 4), 3633 /* [2] */ 3634 BTF_END_RAW, 3635 }, 3636 BTF_STR_SEC("\0int\0float"), 3637 .map_type = BPF_MAP_TYPE_ARRAY, 3638 .map_name = "float_type_check_btf", 3639 .key_size = sizeof(int), 3640 .value_size = 4, 3641 .key_type_id = 1, 3642 .value_type_id = 2, 3643 .max_entries = 1, 3644 .btf_load_err = true, 3645 .err_str = "vlen != 0", 3646 }, 3647 { 3648 .descr = "float test #3, invalid kind_flag", 3649 .raw_types = { 3650 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 3651 /* [1] */ 3652 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FLOAT, 1, 0), 4), 3653 /* [2] */ 3654 BTF_END_RAW, 3655 }, 3656 BTF_STR_SEC("\0int\0float"), 3657 .map_type = BPF_MAP_TYPE_ARRAY, 3658 .map_name = "float_type_check_btf", 3659 .key_size = sizeof(int), 3660 .value_size = 4, 3661 .key_type_id = 1, 3662 .value_type_id = 2, 3663 .max_entries = 1, 3664 .btf_load_err = true, 3665 .err_str = "Invalid btf_info kind_flag", 3666 }, 3667 { 3668 .descr = "float test #4, member does not fit", 3669 .raw_types = { 3670 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 3671 /* [1] */ 3672 BTF_TYPE_FLOAT_ENC(NAME_TBD, 4), /* [2] */ 3673 BTF_STRUCT_ENC(NAME_TBD, 1, 2), /* [3] */ 3674 BTF_MEMBER_ENC(NAME_TBD, 2, 0), 3675 BTF_END_RAW, 3676 }, 3677 BTF_STR_SEC("\0int\0float\0floats\0x"), 3678 .map_type = BPF_MAP_TYPE_ARRAY, 3679 .map_name = "float_type_check_btf", 3680 .key_size = sizeof(int), 3681 .value_size = 4, 3682 .key_type_id = 1, 3683 .value_type_id = 3, 3684 .max_entries = 1, 3685 .btf_load_err = true, 3686 .err_str = "Member exceeds struct_size", 3687 }, 3688 { 3689 .descr = "float test #5, member is not properly aligned", 3690 .raw_types = { 3691 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 3692 /* [1] */ 3693 BTF_TYPE_FLOAT_ENC(NAME_TBD, 4), /* [2] */ 3694 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [3] */ 3695 BTF_MEMBER_ENC(NAME_TBD, 2, 8), 3696 BTF_END_RAW, 3697 }, 3698 BTF_STR_SEC("\0int\0float\0floats\0x"), 3699 .map_type = BPF_MAP_TYPE_ARRAY, 3700 .map_name = "float_type_check_btf", 3701 .key_size = sizeof(int), 3702 .value_size = 4, 3703 .key_type_id = 1, 3704 .value_type_id = 3, 3705 .max_entries = 1, 3706 .btf_load_err = true, 3707 .err_str = "Member is not properly aligned", 3708 }, 3709 { 3710 .descr = "float test #6, invalid size", 3711 .raw_types = { 3712 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 3713 /* [1] */ 3714 BTF_TYPE_FLOAT_ENC(NAME_TBD, 6), /* [2] */ 3715 BTF_END_RAW, 3716 }, 3717 BTF_STR_SEC("\0int\0float"), 3718 .map_type = BPF_MAP_TYPE_ARRAY, 3719 .map_name = "float_type_check_btf", 3720 .key_size = sizeof(int), 3721 .value_size = 6, 3722 .key_type_id = 1, 3723 .value_type_id = 2, 3724 .max_entries = 1, 3725 .btf_load_err = true, 3726 .err_str = "Invalid type_size", 3727 }, 3728 3729 { 3730 .descr = "decl_tag test #1, struct/member, well-formed", 3731 .raw_types = { 3732 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3733 BTF_STRUCT_ENC(0, 2, 8), /* [2] */ 3734 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 3735 BTF_MEMBER_ENC(NAME_TBD, 1, 32), 3736 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), 3737 BTF_DECL_TAG_ENC(NAME_TBD, 2, 0), 3738 BTF_DECL_TAG_ENC(NAME_TBD, 2, 1), 3739 BTF_END_RAW, 3740 }, 3741 BTF_STR_SEC("\0m1\0m2\0tag1\0tag2\0tag3"), 3742 .map_type = BPF_MAP_TYPE_ARRAY, 3743 .map_name = "tag_type_check_btf", 3744 .key_size = sizeof(int), 3745 .value_size = 8, 3746 .key_type_id = 1, 3747 .value_type_id = 2, 3748 .max_entries = 1, 3749 }, 3750 { 3751 .descr = "decl_tag test #2, union/member, well-formed", 3752 .raw_types = { 3753 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3754 BTF_UNION_ENC(NAME_TBD, 2, 4), /* [2] */ 3755 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 3756 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 3757 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), 3758 BTF_DECL_TAG_ENC(NAME_TBD, 2, 0), 3759 BTF_DECL_TAG_ENC(NAME_TBD, 2, 1), 3760 BTF_END_RAW, 3761 }, 3762 BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"), 3763 .map_type = BPF_MAP_TYPE_ARRAY, 3764 .map_name = "tag_type_check_btf", 3765 .key_size = sizeof(int), 3766 .value_size = 4, 3767 .key_type_id = 1, 3768 .value_type_id = 2, 3769 .max_entries = 1, 3770 }, 3771 { 3772 .descr = "decl_tag test #3, variable, well-formed", 3773 .raw_types = { 3774 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3775 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 3776 BTF_VAR_ENC(NAME_TBD, 1, 1), /* [3] */ 3777 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), 3778 BTF_DECL_TAG_ENC(NAME_TBD, 3, -1), 3779 BTF_END_RAW, 3780 }, 3781 BTF_STR_SEC("\0local\0global\0tag1\0tag2"), 3782 .map_type = BPF_MAP_TYPE_ARRAY, 3783 .map_name = "tag_type_check_btf", 3784 .key_size = sizeof(int), 3785 .value_size = 4, 3786 .key_type_id = 1, 3787 .value_type_id = 1, 3788 .max_entries = 1, 3789 }, 3790 { 3791 .descr = "decl_tag test #4, func/parameter, well-formed", 3792 .raw_types = { 3793 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3794 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ 3795 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 3796 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 3797 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 3798 BTF_DECL_TAG_ENC(NAME_TBD, 3, -1), 3799 BTF_DECL_TAG_ENC(NAME_TBD, 3, 0), 3800 BTF_DECL_TAG_ENC(NAME_TBD, 3, 1), 3801 BTF_END_RAW, 3802 }, 3803 BTF_STR_SEC("\0arg1\0arg2\0f\0tag1\0tag2\0tag3"), 3804 .map_type = BPF_MAP_TYPE_ARRAY, 3805 .map_name = "tag_type_check_btf", 3806 .key_size = sizeof(int), 3807 .value_size = 4, 3808 .key_type_id = 1, 3809 .value_type_id = 1, 3810 .max_entries = 1, 3811 }, 3812 { 3813 .descr = "decl_tag test #5, invalid value", 3814 .raw_types = { 3815 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3816 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 3817 BTF_DECL_TAG_ENC(0, 2, -1), 3818 BTF_END_RAW, 3819 }, 3820 BTF_STR_SEC("\0local\0tag"), 3821 .map_type = BPF_MAP_TYPE_ARRAY, 3822 .map_name = "tag_type_check_btf", 3823 .key_size = sizeof(int), 3824 .value_size = 4, 3825 .key_type_id = 1, 3826 .value_type_id = 1, 3827 .max_entries = 1, 3828 .btf_load_err = true, 3829 .err_str = "Invalid value", 3830 }, 3831 { 3832 .descr = "decl_tag test #6, invalid target type", 3833 .raw_types = { 3834 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3835 BTF_DECL_TAG_ENC(NAME_TBD, 1, -1), 3836 BTF_END_RAW, 3837 }, 3838 BTF_STR_SEC("\0tag1"), 3839 .map_type = BPF_MAP_TYPE_ARRAY, 3840 .map_name = "tag_type_check_btf", 3841 .key_size = sizeof(int), 3842 .value_size = 4, 3843 .key_type_id = 1, 3844 .value_type_id = 1, 3845 .max_entries = 1, 3846 .btf_load_err = true, 3847 .err_str = "Invalid type", 3848 }, 3849 { 3850 .descr = "decl_tag test #7, invalid vlen", 3851 .raw_types = { 3852 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3853 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 3854 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 1), 2), (0), 3855 BTF_END_RAW, 3856 }, 3857 BTF_STR_SEC("\0local\0tag1"), 3858 .map_type = BPF_MAP_TYPE_ARRAY, 3859 .map_name = "tag_type_check_btf", 3860 .key_size = sizeof(int), 3861 .value_size = 4, 3862 .key_type_id = 1, 3863 .value_type_id = 1, 3864 .max_entries = 1, 3865 .btf_load_err = true, 3866 .err_str = "vlen != 0", 3867 }, 3868 { 3869 .descr = "decl_tag test #8, tag with kflag", 3870 .raw_types = { 3871 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3872 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 3873 BTF_DECL_ATTR_ENC(NAME_TBD, 2, -1), 3874 BTF_END_RAW, 3875 }, 3876 BTF_STR_SEC("\0local\0tag1"), 3877 .map_type = BPF_MAP_TYPE_ARRAY, 3878 .map_name = "tag_type_check_btf", 3879 .key_size = sizeof(int), 3880 .value_size = 4, 3881 .key_type_id = 1, 3882 .value_type_id = 1, 3883 .max_entries = 1, 3884 }, 3885 { 3886 .descr = "decl_tag test #9, var, invalid component_idx", 3887 .raw_types = { 3888 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3889 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 3890 BTF_DECL_TAG_ENC(NAME_TBD, 2, 0), 3891 BTF_END_RAW, 3892 }, 3893 BTF_STR_SEC("\0local\0tag"), 3894 .map_type = BPF_MAP_TYPE_ARRAY, 3895 .map_name = "tag_type_check_btf", 3896 .key_size = sizeof(int), 3897 .value_size = 4, 3898 .key_type_id = 1, 3899 .value_type_id = 1, 3900 .max_entries = 1, 3901 .btf_load_err = true, 3902 .err_str = "Invalid component_idx", 3903 }, 3904 { 3905 .descr = "decl_tag test #10, struct member, invalid component_idx", 3906 .raw_types = { 3907 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3908 BTF_STRUCT_ENC(0, 2, 8), /* [2] */ 3909 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 3910 BTF_MEMBER_ENC(NAME_TBD, 1, 32), 3911 BTF_DECL_TAG_ENC(NAME_TBD, 2, 2), 3912 BTF_END_RAW, 3913 }, 3914 BTF_STR_SEC("\0m1\0m2\0tag"), 3915 .map_type = BPF_MAP_TYPE_ARRAY, 3916 .map_name = "tag_type_check_btf", 3917 .key_size = sizeof(int), 3918 .value_size = 8, 3919 .key_type_id = 1, 3920 .value_type_id = 2, 3921 .max_entries = 1, 3922 .btf_load_err = true, 3923 .err_str = "Invalid component_idx", 3924 }, 3925 { 3926 .descr = "decl_tag test #11, func parameter, invalid component_idx", 3927 .raw_types = { 3928 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3929 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ 3930 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 3931 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 3932 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 3933 BTF_DECL_TAG_ENC(NAME_TBD, 3, 2), 3934 BTF_END_RAW, 3935 }, 3936 BTF_STR_SEC("\0arg1\0arg2\0f\0tag"), 3937 .map_type = BPF_MAP_TYPE_ARRAY, 3938 .map_name = "tag_type_check_btf", 3939 .key_size = sizeof(int), 3940 .value_size = 4, 3941 .key_type_id = 1, 3942 .value_type_id = 1, 3943 .max_entries = 1, 3944 .btf_load_err = true, 3945 .err_str = "Invalid component_idx", 3946 }, 3947 { 3948 .descr = "decl_tag test #12, < -1 component_idx", 3949 .raw_types = { 3950 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3951 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ 3952 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 3953 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 3954 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 3955 BTF_DECL_TAG_ENC(NAME_TBD, 3, -2), 3956 BTF_END_RAW, 3957 }, 3958 BTF_STR_SEC("\0arg1\0arg2\0f\0tag"), 3959 .map_type = BPF_MAP_TYPE_ARRAY, 3960 .map_name = "tag_type_check_btf", 3961 .key_size = sizeof(int), 3962 .value_size = 4, 3963 .key_type_id = 1, 3964 .value_type_id = 1, 3965 .max_entries = 1, 3966 .btf_load_err = true, 3967 .err_str = "Invalid component_idx", 3968 }, 3969 { 3970 .descr = "decl_tag test #13, typedef, well-formed", 3971 .raw_types = { 3972 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3973 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */ 3974 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), 3975 BTF_END_RAW, 3976 }, 3977 BTF_STR_SEC("\0t\0tag"), 3978 .map_type = BPF_MAP_TYPE_ARRAY, 3979 .map_name = "tag_type_check_btf", 3980 .key_size = sizeof(int), 3981 .value_size = 4, 3982 .key_type_id = 1, 3983 .value_type_id = 1, 3984 .max_entries = 1, 3985 }, 3986 { 3987 .descr = "decl_tag test #14, typedef, invalid component_idx", 3988 .raw_types = { 3989 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3990 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */ 3991 BTF_DECL_TAG_ENC(NAME_TBD, 2, 0), 3992 BTF_END_RAW, 3993 }, 3994 BTF_STR_SEC("\0local\0tag"), 3995 .map_type = BPF_MAP_TYPE_ARRAY, 3996 .map_name = "tag_type_check_btf", 3997 .key_size = sizeof(int), 3998 .value_size = 4, 3999 .key_type_id = 1, 4000 .value_type_id = 1, 4001 .max_entries = 1, 4002 .btf_load_err = true, 4003 .err_str = "Invalid component_idx", 4004 }, 4005 { 4006 .descr = "decl_tag test #15, func, invalid func proto", 4007 .raw_types = { 4008 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4009 BTF_DECL_TAG_ENC(NAME_TBD, 3, 0), /* [2] */ 4010 BTF_FUNC_ENC(NAME_TBD, 8), /* [3] */ 4011 BTF_END_RAW, 4012 }, 4013 BTF_STR_SEC("\0tag\0func"), 4014 .map_type = BPF_MAP_TYPE_ARRAY, 4015 .map_name = "tag_type_check_btf", 4016 .key_size = sizeof(int), 4017 .value_size = 4, 4018 .key_type_id = 1, 4019 .value_type_id = 1, 4020 .max_entries = 1, 4021 .btf_load_err = true, 4022 .err_str = "Invalid type_id", 4023 }, 4024 { 4025 .descr = "decl_tag test #16, func proto, return type", 4026 .raw_types = { 4027 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4028 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 4029 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 0), 2), (-1), /* [3] */ 4030 BTF_FUNC_PROTO_ENC(3, 0), /* [4] */ 4031 BTF_END_RAW, 4032 }, 4033 BTF_STR_SEC("\0local\0tag1"), 4034 .btf_load_err = true, 4035 .err_str = "Invalid return type", 4036 }, 4037 { 4038 .descr = "decl_tag test #17, func proto, argument", 4039 .raw_types = { 4040 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 0), 4), (-1), /* [1] */ 4041 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), /* [2] */ 4042 BTF_FUNC_PROTO_ENC(0, 1), /* [3] */ 4043 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 4044 BTF_VAR_ENC(NAME_TBD, 2, 0), /* [4] */ 4045 BTF_END_RAW, 4046 }, 4047 BTF_STR_SEC("\0local\0tag1\0var"), 4048 .btf_load_err = true, 4049 .err_str = "Invalid arg#1", 4050 }, 4051 { 4052 .descr = "decl_tag test #18, decl_tag as the map key type", 4053 .raw_types = { 4054 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4055 BTF_STRUCT_ENC(0, 2, 8), /* [2] */ 4056 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 4057 BTF_MEMBER_ENC(NAME_TBD, 1, 32), 4058 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), /* [3] */ 4059 BTF_END_RAW, 4060 }, 4061 BTF_STR_SEC("\0m1\0m2\0tag"), 4062 .map_type = BPF_MAP_TYPE_HASH, 4063 .map_name = "tag_type_check_btf", 4064 .key_size = 8, 4065 .value_size = 4, 4066 .key_type_id = 3, 4067 .value_type_id = 1, 4068 .max_entries = 1, 4069 .map_create_err = true, 4070 }, 4071 { 4072 .descr = "decl_tag test #19, decl_tag as the map value type", 4073 .raw_types = { 4074 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4075 BTF_STRUCT_ENC(0, 2, 8), /* [2] */ 4076 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 4077 BTF_MEMBER_ENC(NAME_TBD, 1, 32), 4078 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), /* [3] */ 4079 BTF_END_RAW, 4080 }, 4081 BTF_STR_SEC("\0m1\0m2\0tag"), 4082 .map_type = BPF_MAP_TYPE_HASH, 4083 .map_name = "tag_type_check_btf", 4084 .key_size = 4, 4085 .value_size = 8, 4086 .key_type_id = 1, 4087 .value_type_id = 3, 4088 .max_entries = 1, 4089 .map_create_err = true, 4090 }, 4091 { 4092 .descr = "type_tag test #1", 4093 .raw_types = { 4094 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4095 BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [2] */ 4096 BTF_PTR_ENC(2), /* [3] */ 4097 BTF_END_RAW, 4098 }, 4099 BTF_STR_SEC("\0tag"), 4100 .map_type = BPF_MAP_TYPE_ARRAY, 4101 .map_name = "tag_type_check_btf", 4102 .key_size = sizeof(int), 4103 .value_size = 4, 4104 .key_type_id = 1, 4105 .value_type_id = 1, 4106 .max_entries = 1, 4107 }, 4108 { 4109 .descr = "type_tag test #2, type tag order", 4110 .raw_types = { 4111 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4112 BTF_CONST_ENC(3), /* [2] */ 4113 BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [3] */ 4114 BTF_END_RAW, 4115 }, 4116 BTF_STR_SEC("\0tag"), 4117 .map_type = BPF_MAP_TYPE_ARRAY, 4118 .map_name = "tag_type_check_btf", 4119 .key_size = sizeof(int), 4120 .value_size = 4, 4121 .key_type_id = 1, 4122 .value_type_id = 1, 4123 .max_entries = 1, 4124 .btf_load_err = true, 4125 .err_str = "Type tags don't precede modifiers", 4126 }, 4127 { 4128 .descr = "type_tag test #3, type tag order", 4129 .raw_types = { 4130 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4131 BTF_TYPE_TAG_ENC(NAME_TBD, 3), /* [2] */ 4132 BTF_CONST_ENC(4), /* [3] */ 4133 BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [4] */ 4134 BTF_END_RAW, 4135 }, 4136 BTF_STR_SEC("\0tag\0tag"), 4137 .map_type = BPF_MAP_TYPE_ARRAY, 4138 .map_name = "tag_type_check_btf", 4139 .key_size = sizeof(int), 4140 .value_size = 4, 4141 .key_type_id = 1, 4142 .value_type_id = 1, 4143 .max_entries = 1, 4144 .btf_load_err = true, 4145 .err_str = "Type tags don't precede modifiers", 4146 }, 4147 { 4148 .descr = "type_tag test #4, type tag order", 4149 .raw_types = { 4150 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4151 BTF_TYPEDEF_ENC(NAME_TBD, 3), /* [2] */ 4152 BTF_CONST_ENC(4), /* [3] */ 4153 BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [4] */ 4154 BTF_END_RAW, 4155 }, 4156 BTF_STR_SEC("\0tag\0tag"), 4157 .map_type = BPF_MAP_TYPE_ARRAY, 4158 .map_name = "tag_type_check_btf", 4159 .key_size = sizeof(int), 4160 .value_size = 4, 4161 .key_type_id = 1, 4162 .value_type_id = 1, 4163 .max_entries = 1, 4164 .btf_load_err = true, 4165 .err_str = "Type tags don't precede modifiers", 4166 }, 4167 { 4168 .descr = "type_tag test #5, type tag order", 4169 .raw_types = { 4170 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4171 BTF_TYPE_TAG_ENC(NAME_TBD, 3), /* [2] */ 4172 BTF_CONST_ENC(1), /* [3] */ 4173 BTF_TYPE_TAG_ENC(NAME_TBD, 2), /* [4] */ 4174 BTF_END_RAW, 4175 }, 4176 BTF_STR_SEC("\0tag\0tag"), 4177 .map_type = BPF_MAP_TYPE_ARRAY, 4178 .map_name = "tag_type_check_btf", 4179 .key_size = sizeof(int), 4180 .value_size = 4, 4181 .key_type_id = 1, 4182 .value_type_id = 1, 4183 .max_entries = 1, 4184 }, 4185 { 4186 .descr = "type_tag test #6, type tag order", 4187 .raw_types = { 4188 BTF_PTR_ENC(2), /* [1] */ 4189 BTF_TYPE_TAG_ENC(NAME_TBD, 3), /* [2] */ 4190 BTF_CONST_ENC(4), /* [3] */ 4191 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [4] */ 4192 BTF_PTR_ENC(6), /* [5] */ 4193 BTF_CONST_ENC(2), /* [6] */ 4194 BTF_END_RAW, 4195 }, 4196 BTF_STR_SEC("\0tag"), 4197 .map_type = BPF_MAP_TYPE_ARRAY, 4198 .map_name = "tag_type_check_btf", 4199 .key_size = sizeof(int), 4200 .value_size = 4, 4201 .key_type_id = 1, 4202 .value_type_id = 1, 4203 .max_entries = 1, 4204 .btf_load_err = true, 4205 .err_str = "Type tags don't precede modifiers", 4206 }, 4207 { 4208 .descr = "type_tag test #7, tag with kflag", 4209 .raw_types = { 4210 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4211 BTF_TYPE_ATTR_ENC(NAME_TBD, 1), /* [2] */ 4212 BTF_PTR_ENC(2), /* [3] */ 4213 BTF_END_RAW, 4214 }, 4215 BTF_STR_SEC("\0tag"), 4216 .map_type = BPF_MAP_TYPE_ARRAY, 4217 .map_name = "tag_type_check_btf", 4218 .key_size = sizeof(int), 4219 .value_size = 4, 4220 .key_type_id = 1, 4221 .value_type_id = 1, 4222 .max_entries = 1, 4223 }, 4224 { 4225 .descr = "enum64 test #1, unsigned, size 8", 4226 .raw_types = { 4227 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4228 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8), /* [2] */ 4229 BTF_ENUM64_ENC(NAME_TBD, 0, 0), 4230 BTF_ENUM64_ENC(NAME_TBD, 1, 1), 4231 BTF_END_RAW, 4232 }, 4233 BTF_STR_SEC("\0a\0b\0c"), 4234 .map_type = BPF_MAP_TYPE_ARRAY, 4235 .map_name = "tag_type_check_btf", 4236 .key_size = sizeof(int), 4237 .value_size = 8, 4238 .key_type_id = 1, 4239 .value_type_id = 2, 4240 .max_entries = 1, 4241 }, 4242 { 4243 .descr = "enum64 test #2, signed, size 4", 4244 .raw_types = { 4245 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4246 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 1, 2), 4), /* [2] */ 4247 BTF_ENUM64_ENC(NAME_TBD, -1, 0), 4248 BTF_ENUM64_ENC(NAME_TBD, 1, 0), 4249 BTF_END_RAW, 4250 }, 4251 BTF_STR_SEC("\0a\0b\0c"), 4252 .map_type = BPF_MAP_TYPE_ARRAY, 4253 .map_name = "tag_type_check_btf", 4254 .key_size = sizeof(int), 4255 .value_size = 4, 4256 .key_type_id = 1, 4257 .value_type_id = 2, 4258 .max_entries = 1, 4259 }, 4260 4261 { 4262 .descr = "struct test repeated fields count overflow", 4263 .raw_types = { 4264 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4265 BTF_STRUCT_ENC(NAME_TBD, 0, 0), /* [2] */ 4266 BTF_TYPE_TAG_ENC(NAME_TBD, 2), /* [3] */ 4267 BTF_PTR_ENC(3), /* [4] */ 4268 BTF_TYPE_ARRAY_ENC(4, 1, 1), /* [5] */ 4269 BTF_STRUCT_ENC(NAME_TBD, 10, 8), /* [6] */ 4270 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 4271 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 4272 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 4273 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 4274 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 4275 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 4276 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 4277 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 4278 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 4279 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 4280 BTF_TYPE_ARRAY_ENC(6, 1, 0x1999999aU), /* [7] */ 4281 BTF_STRUCT_ENC(NAME_TBD, 2, 8 + 8 * 0x1999999aU), /* [8] */ 4282 BTF_MEMBER_ENC(NAME_TBD, 4, 0), 4283 BTF_MEMBER_ENC(NAME_TBD, 7, 64), 4284 BTF_END_RAW, 4285 }, 4286 BTF_STR_SEC("\0int\0prog_test_ref_kfunc\0kptr_untrusted\0elem" 4287 "\0p0\0p1\0p2\0p3\0p4\0p5\0p6\0p7\0p8\0p9" 4288 "\0outer\0trigger\0elems"), 4289 .map_type = BPF_MAP_TYPE_ARRAY, 4290 .map_name = "repeat_fields", 4291 .key_size = sizeof(int), 4292 .value_size = 8 + 8 * 0x1999999aU, 4293 .key_type_id = 1, 4294 .value_type_id = 8, 4295 .max_entries = 1, 4296 .btf_load_err = true, 4297 }, 4298 }; /* struct btf_raw_test raw_tests[] */ 4299 4300 static const char *get_next_str(const char *start, const char *end) 4301 { 4302 return start < end - 1 ? start + 1 : NULL; 4303 } 4304 4305 static int get_raw_sec_size(const __u32 *raw_types) 4306 { 4307 int i; 4308 4309 for (i = MAX_NR_RAW_U32 - 1; 4310 i >= 0 && raw_types[i] != BTF_END_RAW; 4311 i--) 4312 ; 4313 4314 return i < 0 ? i : i * sizeof(raw_types[0]); 4315 } 4316 4317 static void *btf_raw_create(const struct btf_header *hdr, 4318 const __u32 *raw_types, 4319 const char *str, 4320 unsigned int str_sec_size, 4321 unsigned int *btf_size, 4322 const char **ret_next_str) 4323 { 4324 const char *next_str = str, *end_str = str + str_sec_size; 4325 const char **strs_idx = NULL, **tmp_strs_idx; 4326 int strs_cap = 0, strs_cnt = 0, next_str_idx = 0; 4327 unsigned int size_needed, offset; 4328 struct btf_header *ret_hdr; 4329 int i, type_sec_size, err = 0; 4330 uint32_t *ret_types; 4331 void *raw_btf = NULL; 4332 4333 type_sec_size = get_raw_sec_size(raw_types); 4334 if (CHECK(type_sec_size < 0, "Cannot get nr_raw_types")) 4335 return NULL; 4336 4337 size_needed = sizeof(*hdr) + type_sec_size + str_sec_size; 4338 raw_btf = malloc(size_needed); 4339 if (CHECK(!raw_btf, "Cannot allocate memory for raw_btf")) 4340 return NULL; 4341 4342 /* Copy header */ 4343 memcpy(raw_btf, hdr, sizeof(*hdr)); 4344 offset = sizeof(*hdr); 4345 4346 /* Index strings */ 4347 while ((next_str = get_next_str(next_str, end_str))) { 4348 if (strs_cnt == strs_cap) { 4349 strs_cap += max(16, strs_cap / 2); 4350 tmp_strs_idx = realloc(strs_idx, 4351 sizeof(*strs_idx) * strs_cap); 4352 if (CHECK(!tmp_strs_idx, 4353 "Cannot allocate memory for strs_idx")) { 4354 err = -1; 4355 goto done; 4356 } 4357 strs_idx = tmp_strs_idx; 4358 } 4359 strs_idx[strs_cnt++] = next_str; 4360 next_str += strlen(next_str); 4361 } 4362 4363 /* Copy type section */ 4364 ret_types = raw_btf + offset; 4365 for (i = 0; i < type_sec_size / sizeof(raw_types[0]); i++) { 4366 if (raw_types[i] == NAME_TBD) { 4367 if (CHECK(next_str_idx == strs_cnt, 4368 "Error in getting next_str #%d", 4369 next_str_idx)) { 4370 err = -1; 4371 goto done; 4372 } 4373 ret_types[i] = strs_idx[next_str_idx++] - str; 4374 } else if (IS_NAME_NTH(raw_types[i])) { 4375 int idx = GET_NAME_NTH_IDX(raw_types[i]); 4376 4377 if (CHECK(idx <= 0 || idx > strs_cnt, 4378 "Error getting string #%d, strs_cnt:%d", 4379 idx, strs_cnt)) { 4380 err = -1; 4381 goto done; 4382 } 4383 ret_types[i] = strs_idx[idx-1] - str; 4384 } else { 4385 ret_types[i] = raw_types[i]; 4386 } 4387 } 4388 offset += type_sec_size; 4389 4390 /* Copy string section */ 4391 memcpy(raw_btf + offset, str, str_sec_size); 4392 4393 ret_hdr = (struct btf_header *)raw_btf; 4394 ret_hdr->type_len = type_sec_size; 4395 ret_hdr->str_off = type_sec_size; 4396 ret_hdr->str_len = str_sec_size; 4397 4398 *btf_size = size_needed; 4399 if (ret_next_str) 4400 *ret_next_str = 4401 next_str_idx < strs_cnt ? strs_idx[next_str_idx] : NULL; 4402 4403 done: 4404 free(strs_idx); 4405 if (err) { 4406 free(raw_btf); 4407 return NULL; 4408 } 4409 return raw_btf; 4410 } 4411 4412 static int load_raw_btf(const void *raw_data, size_t raw_size) 4413 { 4414 LIBBPF_OPTS(bpf_btf_load_opts, opts); 4415 int btf_fd; 4416 4417 if (always_log) { 4418 opts.log_buf = btf_log_buf, 4419 opts.log_size = BTF_LOG_BUF_SIZE, 4420 opts.log_level = 1; 4421 } 4422 4423 btf_fd = bpf_btf_load(raw_data, raw_size, &opts); 4424 if (btf_fd < 0 && !always_log) { 4425 opts.log_buf = btf_log_buf, 4426 opts.log_size = BTF_LOG_BUF_SIZE, 4427 opts.log_level = 1; 4428 btf_fd = bpf_btf_load(raw_data, raw_size, &opts); 4429 } 4430 4431 return btf_fd; 4432 } 4433 4434 static void do_test_raw(unsigned int test_num) 4435 { 4436 struct btf_raw_test *test = &raw_tests[test_num - 1]; 4437 LIBBPF_OPTS(bpf_map_create_opts, opts); 4438 int map_fd = -1, btf_fd = -1; 4439 unsigned int raw_btf_size; 4440 struct btf_header *hdr; 4441 void *raw_btf; 4442 int err; 4443 4444 if (!test__start_subtest(test->descr)) 4445 return; 4446 4447 raw_btf = btf_raw_create(&hdr_tmpl, 4448 test->raw_types, 4449 test->str_sec, 4450 test->str_sec_size, 4451 &raw_btf_size, NULL); 4452 if (!raw_btf) 4453 return; 4454 4455 hdr = raw_btf; 4456 4457 hdr->hdr_len = (int)hdr->hdr_len + test->hdr_len_delta; 4458 hdr->type_off = (int)hdr->type_off + test->type_off_delta; 4459 hdr->str_off = (int)hdr->str_off + test->str_off_delta; 4460 hdr->str_len = (int)hdr->str_len + test->str_len_delta; 4461 4462 *btf_log_buf = '\0'; 4463 btf_fd = load_raw_btf(raw_btf, raw_btf_size); 4464 free(raw_btf); 4465 4466 err = ((btf_fd < 0) != test->btf_load_err); 4467 if (CHECK(err, "btf_fd:%d test->btf_load_err:%u", 4468 btf_fd, test->btf_load_err) || 4469 CHECK(test->err_str && !strstr(btf_log_buf, test->err_str), 4470 "expected err_str:%s\n", test->err_str)) { 4471 err = -1; 4472 goto done; 4473 } 4474 4475 if (err || btf_fd < 0) 4476 goto done; 4477 4478 if (!test->map_type) 4479 goto done; 4480 4481 opts.btf_fd = btf_fd; 4482 opts.btf_key_type_id = test->key_type_id; 4483 opts.btf_value_type_id = test->value_type_id; 4484 map_fd = bpf_map_create(test->map_type, test->map_name, 4485 test->key_size, test->value_size, test->max_entries, &opts); 4486 4487 err = ((map_fd < 0) != test->map_create_err); 4488 CHECK(err, "map_fd:%d test->map_create_err:%u", 4489 map_fd, test->map_create_err); 4490 4491 done: 4492 if (*btf_log_buf && (err || always_log)) 4493 fprintf(stderr, "\n%s", btf_log_buf); 4494 if (btf_fd >= 0) 4495 close(btf_fd); 4496 if (map_fd >= 0) 4497 close(map_fd); 4498 } 4499 4500 struct btf_get_info_test { 4501 const char *descr; 4502 const char *str_sec; 4503 __u32 raw_types[MAX_NR_RAW_U32]; 4504 __u32 str_sec_size; 4505 int btf_size_delta; 4506 int (*special_test)(unsigned int test_num); 4507 }; 4508 4509 static int test_big_btf_info(unsigned int test_num); 4510 static int test_btf_id(unsigned int test_num); 4511 4512 const struct btf_get_info_test get_info_tests[] = { 4513 { 4514 .descr = "== raw_btf_size+1", 4515 .raw_types = { 4516 /* int */ /* [1] */ 4517 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 4518 BTF_END_RAW, 4519 }, 4520 .str_sec = "", 4521 .str_sec_size = sizeof(""), 4522 .btf_size_delta = 1, 4523 }, 4524 { 4525 .descr = "== raw_btf_size-3", 4526 .raw_types = { 4527 /* int */ /* [1] */ 4528 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 4529 BTF_END_RAW, 4530 }, 4531 .str_sec = "", 4532 .str_sec_size = sizeof(""), 4533 .btf_size_delta = -3, 4534 }, 4535 { 4536 .descr = "Large bpf_btf_info", 4537 .raw_types = { 4538 /* int */ /* [1] */ 4539 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 4540 BTF_END_RAW, 4541 }, 4542 .str_sec = "", 4543 .str_sec_size = sizeof(""), 4544 .special_test = test_big_btf_info, 4545 }, 4546 { 4547 .descr = "BTF ID", 4548 .raw_types = { 4549 /* int */ /* [1] */ 4550 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 4551 /* unsigned int */ /* [2] */ 4552 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), 4553 BTF_END_RAW, 4554 }, 4555 .str_sec = "", 4556 .str_sec_size = sizeof(""), 4557 .special_test = test_btf_id, 4558 }, 4559 }; 4560 4561 static int test_big_btf_info(unsigned int test_num) 4562 { 4563 const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; 4564 uint8_t *raw_btf = NULL, *user_btf = NULL; 4565 unsigned int raw_btf_size; 4566 struct { 4567 struct bpf_btf_info info; 4568 uint64_t garbage; 4569 } info_garbage; 4570 struct bpf_btf_info *info; 4571 int btf_fd = -1, err; 4572 uint32_t info_len; 4573 4574 raw_btf = btf_raw_create(&hdr_tmpl, 4575 test->raw_types, 4576 test->str_sec, 4577 test->str_sec_size, 4578 &raw_btf_size, NULL); 4579 4580 if (!raw_btf) 4581 return -1; 4582 4583 *btf_log_buf = '\0'; 4584 4585 user_btf = malloc(raw_btf_size); 4586 if (CHECK(!user_btf, "!user_btf")) { 4587 err = -1; 4588 goto done; 4589 } 4590 4591 btf_fd = load_raw_btf(raw_btf, raw_btf_size); 4592 if (CHECK(btf_fd < 0, "errno:%d", errno)) { 4593 err = -1; 4594 goto done; 4595 } 4596 4597 /* 4598 * GET_INFO should error out if the userspace info 4599 * has non zero tailing bytes. 4600 */ 4601 info = &info_garbage.info; 4602 memset(info, 0, sizeof(*info)); 4603 info_garbage.garbage = 0xdeadbeef; 4604 info_len = sizeof(info_garbage); 4605 info->btf = ptr_to_u64(user_btf); 4606 info->btf_size = raw_btf_size; 4607 4608 err = bpf_btf_get_info_by_fd(btf_fd, info, &info_len); 4609 if (CHECK(!err, "!err")) { 4610 err = -1; 4611 goto done; 4612 } 4613 4614 /* 4615 * GET_INFO should succeed even info_len is larger than 4616 * the kernel supported as long as tailing bytes are zero. 4617 * The kernel supported info len should also be returned 4618 * to userspace. 4619 */ 4620 info_garbage.garbage = 0; 4621 err = bpf_btf_get_info_by_fd(btf_fd, info, &info_len); 4622 if (CHECK(err || info_len != sizeof(*info), 4623 "err:%d errno:%d info_len:%u sizeof(*info):%zu", 4624 err, errno, info_len, sizeof(*info))) { 4625 err = -1; 4626 goto done; 4627 } 4628 4629 fprintf(stderr, "OK"); 4630 4631 done: 4632 if (*btf_log_buf && (err || always_log)) 4633 fprintf(stderr, "\n%s", btf_log_buf); 4634 4635 free(raw_btf); 4636 free(user_btf); 4637 4638 if (btf_fd >= 0) 4639 close(btf_fd); 4640 4641 return err; 4642 } 4643 4644 static int test_btf_id(unsigned int test_num) 4645 { 4646 const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; 4647 LIBBPF_OPTS(bpf_map_create_opts, opts); 4648 uint8_t *raw_btf = NULL, *user_btf[2] = {}; 4649 int btf_fd[2] = {-1, -1}, map_fd = -1; 4650 struct bpf_map_info map_info = {}; 4651 struct bpf_btf_info info[2] = {}; 4652 unsigned int raw_btf_size; 4653 uint32_t info_len; 4654 int err, i, ret; 4655 4656 raw_btf = btf_raw_create(&hdr_tmpl, 4657 test->raw_types, 4658 test->str_sec, 4659 test->str_sec_size, 4660 &raw_btf_size, NULL); 4661 4662 if (!raw_btf) 4663 return -1; 4664 4665 *btf_log_buf = '\0'; 4666 4667 for (i = 0; i < 2; i++) { 4668 user_btf[i] = malloc(raw_btf_size); 4669 if (CHECK(!user_btf[i], "!user_btf[%d]", i)) { 4670 err = -1; 4671 goto done; 4672 } 4673 info[i].btf = ptr_to_u64(user_btf[i]); 4674 info[i].btf_size = raw_btf_size; 4675 } 4676 4677 btf_fd[0] = load_raw_btf(raw_btf, raw_btf_size); 4678 if (CHECK(btf_fd[0] < 0, "errno:%d", errno)) { 4679 err = -1; 4680 goto done; 4681 } 4682 4683 /* Test BPF_OBJ_GET_INFO_BY_ID on btf_id */ 4684 info_len = sizeof(info[0]); 4685 err = bpf_btf_get_info_by_fd(btf_fd[0], &info[0], &info_len); 4686 if (CHECK(err, "errno:%d", errno)) { 4687 err = -1; 4688 goto done; 4689 } 4690 4691 btf_fd[1] = bpf_btf_get_fd_by_id(info[0].id); 4692 if (CHECK(btf_fd[1] < 0, "errno:%d", errno)) { 4693 err = -1; 4694 goto done; 4695 } 4696 4697 ret = 0; 4698 err = bpf_btf_get_info_by_fd(btf_fd[1], &info[1], &info_len); 4699 if (CHECK(err || info[0].id != info[1].id || 4700 info[0].btf_size != info[1].btf_size || 4701 (ret = memcmp(user_btf[0], user_btf[1], info[0].btf_size)), 4702 "err:%d errno:%d id0:%u id1:%u btf_size0:%u btf_size1:%u memcmp:%d", 4703 err, errno, info[0].id, info[1].id, 4704 info[0].btf_size, info[1].btf_size, ret)) { 4705 err = -1; 4706 goto done; 4707 } 4708 4709 /* Test btf members in struct bpf_map_info */ 4710 opts.btf_fd = btf_fd[0]; 4711 opts.btf_key_type_id = 1; 4712 opts.btf_value_type_id = 2; 4713 map_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "test_btf_id", 4714 sizeof(int), sizeof(int), 4, &opts); 4715 if (CHECK(map_fd < 0, "errno:%d", errno)) { 4716 err = -1; 4717 goto done; 4718 } 4719 4720 info_len = sizeof(map_info); 4721 err = bpf_map_get_info_by_fd(map_fd, &map_info, &info_len); 4722 if (CHECK(err || map_info.btf_id != info[0].id || 4723 map_info.btf_key_type_id != 1 || map_info.btf_value_type_id != 2, 4724 "err:%d errno:%d info.id:%u btf_id:%u btf_key_type_id:%u btf_value_type_id:%u", 4725 err, errno, info[0].id, map_info.btf_id, map_info.btf_key_type_id, 4726 map_info.btf_value_type_id)) { 4727 err = -1; 4728 goto done; 4729 } 4730 4731 for (i = 0; i < 2; i++) { 4732 close(btf_fd[i]); 4733 btf_fd[i] = -1; 4734 } 4735 4736 /* Test BTF ID is removed from the kernel */ 4737 btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id); 4738 if (CHECK(btf_fd[0] < 0, "errno:%d", errno)) { 4739 err = -1; 4740 goto done; 4741 } 4742 close(btf_fd[0]); 4743 btf_fd[0] = -1; 4744 4745 /* The map holds the last ref to BTF and its btf_id */ 4746 close(map_fd); 4747 map_fd = -1; 4748 4749 fprintf(stderr, "OK"); 4750 4751 done: 4752 if (*btf_log_buf && (err || always_log)) 4753 fprintf(stderr, "\n%s", btf_log_buf); 4754 4755 free(raw_btf); 4756 if (map_fd >= 0) 4757 close(map_fd); 4758 for (i = 0; i < 2; i++) { 4759 free(user_btf[i]); 4760 if (btf_fd[i] >= 0) 4761 close(btf_fd[i]); 4762 } 4763 4764 return err; 4765 } 4766 4767 static void do_test_get_info(unsigned int test_num) 4768 { 4769 const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; 4770 unsigned int raw_btf_size, user_btf_size, expected_nbytes; 4771 uint8_t *raw_btf = NULL, *user_btf = NULL; 4772 struct bpf_btf_info info = {}; 4773 int btf_fd = -1, err, ret; 4774 uint32_t info_len; 4775 4776 if (!test__start_subtest(test->descr)) 4777 return; 4778 4779 if (test->special_test) { 4780 err = test->special_test(test_num); 4781 if (CHECK(err, "failed: %d\n", err)) 4782 return; 4783 } 4784 4785 raw_btf = btf_raw_create(&hdr_tmpl, 4786 test->raw_types, 4787 test->str_sec, 4788 test->str_sec_size, 4789 &raw_btf_size, NULL); 4790 4791 if (!raw_btf) 4792 return; 4793 4794 *btf_log_buf = '\0'; 4795 4796 user_btf = malloc(raw_btf_size); 4797 if (CHECK(!user_btf, "!user_btf")) { 4798 err = -1; 4799 goto done; 4800 } 4801 4802 btf_fd = load_raw_btf(raw_btf, raw_btf_size); 4803 if (CHECK(btf_fd <= 0, "errno:%d", errno)) { 4804 err = -1; 4805 goto done; 4806 } 4807 4808 user_btf_size = (int)raw_btf_size + test->btf_size_delta; 4809 expected_nbytes = min(raw_btf_size, user_btf_size); 4810 if (raw_btf_size > expected_nbytes) 4811 memset(user_btf + expected_nbytes, 0xff, 4812 raw_btf_size - expected_nbytes); 4813 4814 info_len = sizeof(info); 4815 info.btf = ptr_to_u64(user_btf); 4816 info.btf_size = user_btf_size; 4817 4818 ret = 0; 4819 err = bpf_btf_get_info_by_fd(btf_fd, &info, &info_len); 4820 if (CHECK(err || !info.id || info_len != sizeof(info) || 4821 info.btf_size != raw_btf_size || 4822 (ret = memcmp(raw_btf, user_btf, expected_nbytes)), 4823 "err:%d errno:%d info.id:%u info_len:%u sizeof(info):%zu raw_btf_size:%u info.btf_size:%u expected_nbytes:%u memcmp:%d", 4824 err, errno, info.id, info_len, sizeof(info), 4825 raw_btf_size, info.btf_size, expected_nbytes, ret)) { 4826 err = -1; 4827 goto done; 4828 } 4829 4830 while (expected_nbytes < raw_btf_size) { 4831 fprintf(stderr, "%u...", expected_nbytes); 4832 if (CHECK(user_btf[expected_nbytes++] != 0xff, 4833 "user_btf[%u]:%x != 0xff", expected_nbytes - 1, 4834 user_btf[expected_nbytes - 1])) { 4835 err = -1; 4836 goto done; 4837 } 4838 } 4839 4840 fprintf(stderr, "OK"); 4841 4842 done: 4843 if (*btf_log_buf && (err || always_log)) 4844 fprintf(stderr, "\n%s", btf_log_buf); 4845 4846 free(raw_btf); 4847 free(user_btf); 4848 4849 if (btf_fd >= 0) 4850 close(btf_fd); 4851 } 4852 4853 struct btf_file_test { 4854 const char *file; 4855 bool btf_kv_notfound; 4856 }; 4857 4858 static struct btf_file_test file_tests[] = { 4859 { .file = "test_btf_newkv.bpf.o", }, 4860 { .file = "test_btf_nokv.bpf.o", .btf_kv_notfound = true, }, 4861 }; 4862 4863 static void do_test_file(unsigned int test_num) 4864 { 4865 const struct btf_file_test *test = &file_tests[test_num - 1]; 4866 const char *expected_fnames[] = {"_dummy_tracepoint", 4867 "test_long_fname_1", 4868 "test_long_fname_2"}; 4869 struct btf_ext *btf_ext = NULL; 4870 struct bpf_prog_info info = {}; 4871 struct bpf_object *obj = NULL; 4872 struct bpf_func_info *finfo; 4873 struct bpf_program *prog; 4874 __u32 info_len, rec_size; 4875 bool has_btf_ext = false; 4876 struct btf *btf = NULL; 4877 void *func_info = NULL; 4878 struct bpf_map *map; 4879 int i, err, prog_fd; 4880 4881 if (!test__start_subtest(test->file)) 4882 return; 4883 4884 btf = btf__parse_elf(test->file, &btf_ext); 4885 err = libbpf_get_error(btf); 4886 if (err) { 4887 if (err == -ENOENT) { 4888 printf("%s:SKIP: No ELF %s found", __func__, BTF_ELF_SEC); 4889 test__skip(); 4890 return; 4891 } 4892 return; 4893 } 4894 btf__free(btf); 4895 4896 has_btf_ext = btf_ext != NULL; 4897 btf_ext__free(btf_ext); 4898 4899 /* temporary disable LIBBPF_STRICT_MAP_DEFINITIONS to test legacy maps */ 4900 libbpf_set_strict_mode(LIBBPF_STRICT_ALL & ~LIBBPF_STRICT_MAP_DEFINITIONS); 4901 obj = bpf_object__open(test->file); 4902 err = libbpf_get_error(obj); 4903 if (CHECK(err, "obj: %d", err)) 4904 return; 4905 4906 prog = bpf_object__next_program(obj, NULL); 4907 if (CHECK(!prog, "Cannot find bpf_prog")) { 4908 err = -1; 4909 goto done; 4910 } 4911 4912 bpf_program__set_type(prog, BPF_PROG_TYPE_TRACEPOINT); 4913 err = bpf_object__load(obj); 4914 if (CHECK(err < 0, "bpf_object__load: %d", err)) 4915 goto done; 4916 prog_fd = bpf_program__fd(prog); 4917 4918 map = bpf_object__find_map_by_name(obj, "btf_map"); 4919 if (CHECK(!map, "btf_map not found")) { 4920 err = -1; 4921 goto done; 4922 } 4923 4924 err = (bpf_map__btf_key_type_id(map) == 0 || bpf_map__btf_value_type_id(map) == 0) 4925 != test->btf_kv_notfound; 4926 if (CHECK(err, "btf_key_type_id:%u btf_value_type_id:%u test->btf_kv_notfound:%u", 4927 bpf_map__btf_key_type_id(map), bpf_map__btf_value_type_id(map), 4928 test->btf_kv_notfound)) 4929 goto done; 4930 4931 if (!has_btf_ext) 4932 goto skip; 4933 4934 /* get necessary program info */ 4935 info_len = sizeof(struct bpf_prog_info); 4936 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len); 4937 4938 if (CHECK(err < 0, "invalid get info (1st) errno:%d", errno)) { 4939 fprintf(stderr, "%s\n", btf_log_buf); 4940 err = -1; 4941 goto done; 4942 } 4943 if (CHECK(info.nr_func_info != 3, 4944 "incorrect info.nr_func_info (1st) %d", 4945 info.nr_func_info)) { 4946 err = -1; 4947 goto done; 4948 } 4949 rec_size = info.func_info_rec_size; 4950 if (CHECK(rec_size != sizeof(struct bpf_func_info), 4951 "incorrect info.func_info_rec_size (1st) %d\n", rec_size)) { 4952 err = -1; 4953 goto done; 4954 } 4955 4956 func_info = malloc(info.nr_func_info * rec_size); 4957 if (CHECK(!func_info, "out of memory")) { 4958 err = -1; 4959 goto done; 4960 } 4961 4962 /* reset info to only retrieve func_info related data */ 4963 memset(&info, 0, sizeof(info)); 4964 info.nr_func_info = 3; 4965 info.func_info_rec_size = rec_size; 4966 info.func_info = ptr_to_u64(func_info); 4967 4968 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len); 4969 4970 if (CHECK(err < 0, "invalid get info (2nd) errno:%d", errno)) { 4971 fprintf(stderr, "%s\n", btf_log_buf); 4972 err = -1; 4973 goto done; 4974 } 4975 if (CHECK(info.nr_func_info != 3, 4976 "incorrect info.nr_func_info (2nd) %d", 4977 info.nr_func_info)) { 4978 err = -1; 4979 goto done; 4980 } 4981 if (CHECK(info.func_info_rec_size != rec_size, 4982 "incorrect info.func_info_rec_size (2nd) %d", 4983 info.func_info_rec_size)) { 4984 err = -1; 4985 goto done; 4986 } 4987 4988 btf = btf__load_from_kernel_by_id(info.btf_id); 4989 err = libbpf_get_error(btf); 4990 if (CHECK(err, "cannot get btf from kernel, err: %d", err)) 4991 goto done; 4992 4993 /* check three functions */ 4994 finfo = func_info; 4995 for (i = 0; i < 3; i++) { 4996 const struct btf_type *t; 4997 const char *fname; 4998 4999 t = btf__type_by_id(btf, finfo->type_id); 5000 if (CHECK(!t, "btf__type_by_id failure: id %u", 5001 finfo->type_id)) { 5002 err = -1; 5003 goto done; 5004 } 5005 5006 fname = btf__name_by_offset(btf, t->name_off); 5007 err = strcmp(fname, expected_fnames[i]); 5008 /* for the second and third functions in .text section, 5009 * the compiler may order them either way. 5010 */ 5011 if (i && err) 5012 err = strcmp(fname, expected_fnames[3 - i]); 5013 if (CHECK(err, "incorrect fname %s", fname ? : "")) { 5014 err = -1; 5015 goto done; 5016 } 5017 5018 finfo = (void *)finfo + rec_size; 5019 } 5020 5021 skip: 5022 fprintf(stderr, "OK"); 5023 5024 done: 5025 libbpf_set_strict_mode(LIBBPF_STRICT_ALL); 5026 5027 btf__free(btf); 5028 free(func_info); 5029 bpf_object__close(obj); 5030 } 5031 5032 const char *pprint_enum_str[] = { 5033 "ENUM_ZERO", 5034 "ENUM_ONE", 5035 "ENUM_TWO", 5036 "ENUM_THREE", 5037 }; 5038 5039 struct pprint_mapv { 5040 uint32_t ui32; 5041 uint16_t ui16; 5042 /* 2 bytes hole */ 5043 int32_t si32; 5044 uint32_t unused_bits2a:2, 5045 bits28:28, 5046 unused_bits2b:2; 5047 union { 5048 uint64_t ui64; 5049 uint8_t ui8a[8]; 5050 }; 5051 enum { 5052 ENUM_ZERO, 5053 ENUM_ONE, 5054 ENUM_TWO, 5055 ENUM_THREE, 5056 } aenum; 5057 uint32_t ui32b; 5058 uint32_t bits2c:2; 5059 uint8_t si8_4[2][2]; 5060 }; 5061 5062 #ifdef __SIZEOF_INT128__ 5063 struct pprint_mapv_int128 { 5064 __int128 si128a; 5065 __int128 si128b; 5066 unsigned __int128 bits3:3; 5067 unsigned __int128 bits80:80; 5068 unsigned __int128 ui128; 5069 }; 5070 #endif 5071 5072 static struct btf_raw_test pprint_test_template[] = { 5073 { 5074 .raw_types = { 5075 /* unsigned char */ /* [1] */ 5076 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), 5077 /* unsigned short */ /* [2] */ 5078 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), 5079 /* unsigned int */ /* [3] */ 5080 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), 5081 /* int */ /* [4] */ 5082 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 5083 /* unsigned long long */ /* [5] */ 5084 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), 5085 /* 2 bits */ /* [6] */ 5086 BTF_TYPE_INT_ENC(0, 0, 0, 2, 2), 5087 /* 28 bits */ /* [7] */ 5088 BTF_TYPE_INT_ENC(0, 0, 0, 28, 4), 5089 /* uint8_t[8] */ /* [8] */ 5090 BTF_TYPE_ARRAY_ENC(9, 1, 8), 5091 /* typedef unsigned char uint8_t */ /* [9] */ 5092 BTF_TYPEDEF_ENC(NAME_TBD, 1), 5093 /* typedef unsigned short uint16_t */ /* [10] */ 5094 BTF_TYPEDEF_ENC(NAME_TBD, 2), 5095 /* typedef unsigned int uint32_t */ /* [11] */ 5096 BTF_TYPEDEF_ENC(NAME_TBD, 3), 5097 /* typedef int int32_t */ /* [12] */ 5098 BTF_TYPEDEF_ENC(NAME_TBD, 4), 5099 /* typedef unsigned long long uint64_t *//* [13] */ 5100 BTF_TYPEDEF_ENC(NAME_TBD, 5), 5101 /* union (anon) */ /* [14] */ 5102 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), 5103 BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ 5104 BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ 5105 /* enum (anon) */ /* [15] */ 5106 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), 5107 BTF_ENUM_ENC(NAME_TBD, 0), 5108 BTF_ENUM_ENC(NAME_TBD, 1), 5109 BTF_ENUM_ENC(NAME_TBD, 2), 5110 BTF_ENUM_ENC(NAME_TBD, 3), 5111 /* struct pprint_mapv */ /* [16] */ 5112 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 11), 40), 5113 BTF_MEMBER_ENC(NAME_TBD, 11, 0), /* uint32_t ui32 */ 5114 BTF_MEMBER_ENC(NAME_TBD, 10, 32), /* uint16_t ui16 */ 5115 BTF_MEMBER_ENC(NAME_TBD, 12, 64), /* int32_t si32 */ 5116 BTF_MEMBER_ENC(NAME_TBD, 6, 96), /* unused_bits2a */ 5117 BTF_MEMBER_ENC(NAME_TBD, 7, 98), /* bits28 */ 5118 BTF_MEMBER_ENC(NAME_TBD, 6, 126), /* unused_bits2b */ 5119 BTF_MEMBER_ENC(0, 14, 128), /* union (anon) */ 5120 BTF_MEMBER_ENC(NAME_TBD, 15, 192), /* aenum */ 5121 BTF_MEMBER_ENC(NAME_TBD, 11, 224), /* uint32_t ui32b */ 5122 BTF_MEMBER_ENC(NAME_TBD, 6, 256), /* bits2c */ 5123 BTF_MEMBER_ENC(NAME_TBD, 17, 264), /* si8_4 */ 5124 BTF_TYPE_ARRAY_ENC(18, 1, 2), /* [17] */ 5125 BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [18] */ 5126 BTF_END_RAW, 5127 }, 5128 BTF_STR_SEC("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum\0ui32b\0bits2c\0si8_4"), 5129 .key_size = sizeof(unsigned int), 5130 .value_size = sizeof(struct pprint_mapv), 5131 .key_type_id = 3, /* unsigned int */ 5132 .value_type_id = 16, /* struct pprint_mapv */ 5133 .max_entries = 128, 5134 }, 5135 5136 { 5137 /* this type will have the same type as the 5138 * first .raw_types definition, but struct type will 5139 * be encoded with kind_flag set. 5140 */ 5141 .raw_types = { 5142 /* unsigned char */ /* [1] */ 5143 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), 5144 /* unsigned short */ /* [2] */ 5145 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), 5146 /* unsigned int */ /* [3] */ 5147 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), 5148 /* int */ /* [4] */ 5149 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 5150 /* unsigned long long */ /* [5] */ 5151 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), 5152 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [6] */ 5153 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [7] */ 5154 /* uint8_t[8] */ /* [8] */ 5155 BTF_TYPE_ARRAY_ENC(9, 1, 8), 5156 /* typedef unsigned char uint8_t */ /* [9] */ 5157 BTF_TYPEDEF_ENC(NAME_TBD, 1), 5158 /* typedef unsigned short uint16_t */ /* [10] */ 5159 BTF_TYPEDEF_ENC(NAME_TBD, 2), 5160 /* typedef unsigned int uint32_t */ /* [11] */ 5161 BTF_TYPEDEF_ENC(NAME_TBD, 3), 5162 /* typedef int int32_t */ /* [12] */ 5163 BTF_TYPEDEF_ENC(NAME_TBD, 4), 5164 /* typedef unsigned long long uint64_t *//* [13] */ 5165 BTF_TYPEDEF_ENC(NAME_TBD, 5), 5166 /* union (anon) */ /* [14] */ 5167 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), 5168 BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ 5169 BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ 5170 /* enum (anon) */ /* [15] */ 5171 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), 5172 BTF_ENUM_ENC(NAME_TBD, 0), 5173 BTF_ENUM_ENC(NAME_TBD, 1), 5174 BTF_ENUM_ENC(NAME_TBD, 2), 5175 BTF_ENUM_ENC(NAME_TBD, 3), 5176 /* struct pprint_mapv */ /* [16] */ 5177 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 11), 40), 5178 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)), /* uint32_t ui32 */ 5179 BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)), /* uint16_t ui16 */ 5180 BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)), /* int32_t si32 */ 5181 BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 96)), /* unused_bits2a */ 5182 BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)), /* bits28 */ 5183 BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 126)), /* unused_bits2b */ 5184 BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)), /* union (anon) */ 5185 BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)), /* aenum */ 5186 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)), /* uint32_t ui32b */ 5187 BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 256)), /* bits2c */ 5188 BTF_MEMBER_ENC(NAME_TBD, 17, 264), /* si8_4 */ 5189 BTF_TYPE_ARRAY_ENC(18, 1, 2), /* [17] */ 5190 BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [18] */ 5191 BTF_END_RAW, 5192 }, 5193 BTF_STR_SEC("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum\0ui32b\0bits2c\0si8_4"), 5194 .key_size = sizeof(unsigned int), 5195 .value_size = sizeof(struct pprint_mapv), 5196 .key_type_id = 3, /* unsigned int */ 5197 .value_type_id = 16, /* struct pprint_mapv */ 5198 .max_entries = 128, 5199 }, 5200 5201 { 5202 /* this type will have the same layout as the 5203 * first .raw_types definition. The struct type will 5204 * be encoded with kind_flag set, bitfield members 5205 * are added typedef/const/volatile, and bitfield members 5206 * will have both int and enum types. 5207 */ 5208 .raw_types = { 5209 /* unsigned char */ /* [1] */ 5210 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), 5211 /* unsigned short */ /* [2] */ 5212 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), 5213 /* unsigned int */ /* [3] */ 5214 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), 5215 /* int */ /* [4] */ 5216 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 5217 /* unsigned long long */ /* [5] */ 5218 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), 5219 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [6] */ 5220 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [7] */ 5221 /* uint8_t[8] */ /* [8] */ 5222 BTF_TYPE_ARRAY_ENC(9, 1, 8), 5223 /* typedef unsigned char uint8_t */ /* [9] */ 5224 BTF_TYPEDEF_ENC(NAME_TBD, 1), 5225 /* typedef unsigned short uint16_t */ /* [10] */ 5226 BTF_TYPEDEF_ENC(NAME_TBD, 2), 5227 /* typedef unsigned int uint32_t */ /* [11] */ 5228 BTF_TYPEDEF_ENC(NAME_TBD, 3), 5229 /* typedef int int32_t */ /* [12] */ 5230 BTF_TYPEDEF_ENC(NAME_TBD, 4), 5231 /* typedef unsigned long long uint64_t *//* [13] */ 5232 BTF_TYPEDEF_ENC(NAME_TBD, 5), 5233 /* union (anon) */ /* [14] */ 5234 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), 5235 BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ 5236 BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ 5237 /* enum (anon) */ /* [15] */ 5238 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), 5239 BTF_ENUM_ENC(NAME_TBD, 0), 5240 BTF_ENUM_ENC(NAME_TBD, 1), 5241 BTF_ENUM_ENC(NAME_TBD, 2), 5242 BTF_ENUM_ENC(NAME_TBD, 3), 5243 /* struct pprint_mapv */ /* [16] */ 5244 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 11), 40), 5245 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)), /* uint32_t ui32 */ 5246 BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)), /* uint16_t ui16 */ 5247 BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)), /* int32_t si32 */ 5248 BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 96)), /* unused_bits2a */ 5249 BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)), /* bits28 */ 5250 BTF_MEMBER_ENC(NAME_TBD, 19, BTF_MEMBER_OFFSET(2, 126)),/* unused_bits2b */ 5251 BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)), /* union (anon) */ 5252 BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)), /* aenum */ 5253 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)), /* uint32_t ui32b */ 5254 BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 256)), /* bits2c */ 5255 BTF_MEMBER_ENC(NAME_TBD, 20, BTF_MEMBER_OFFSET(0, 264)), /* si8_4 */ 5256 /* typedef unsigned int ___int */ /* [17] */ 5257 BTF_TYPEDEF_ENC(NAME_TBD, 18), 5258 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), 6), /* [18] */ 5259 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 15), /* [19] */ 5260 BTF_TYPE_ARRAY_ENC(21, 1, 2), /* [20] */ 5261 BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [21] */ 5262 BTF_END_RAW, 5263 }, 5264 BTF_STR_SEC("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum\0ui32b\0bits2c\0___int\0si8_4"), 5265 .key_size = sizeof(unsigned int), 5266 .value_size = sizeof(struct pprint_mapv), 5267 .key_type_id = 3, /* unsigned int */ 5268 .value_type_id = 16, /* struct pprint_mapv */ 5269 .max_entries = 128, 5270 }, 5271 5272 #ifdef __SIZEOF_INT128__ 5273 { 5274 /* test int128 */ 5275 .raw_types = { 5276 /* unsigned int */ /* [1] */ 5277 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), 5278 /* __int128 */ /* [2] */ 5279 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 128, 16), 5280 /* unsigned __int128 */ /* [3] */ 5281 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 128, 16), 5282 /* struct pprint_mapv_int128 */ /* [4] */ 5283 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 5), 64), 5284 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), /* si128a */ 5285 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 128)), /* si128b */ 5286 BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(3, 256)), /* bits3 */ 5287 BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(80, 259)), /* bits80 */ 5288 BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(0, 384)), /* ui128 */ 5289 BTF_END_RAW, 5290 }, 5291 BTF_STR_SEC("\0unsigned int\0__int128\0unsigned __int128\0pprint_mapv_int128\0si128a\0si128b\0bits3\0bits80\0ui128"), 5292 .key_size = sizeof(unsigned int), 5293 .value_size = sizeof(struct pprint_mapv_int128), 5294 .key_type_id = 1, 5295 .value_type_id = 4, 5296 .max_entries = 128, 5297 .mapv_kind = PPRINT_MAPV_KIND_INT128, 5298 }, 5299 #endif 5300 5301 }; 5302 5303 static struct btf_pprint_test_meta { 5304 const char *descr; 5305 enum bpf_map_type map_type; 5306 const char *map_name; 5307 bool ordered_map; 5308 bool lossless_map; 5309 bool percpu_map; 5310 } pprint_tests_meta[] = { 5311 { 5312 .descr = "BTF pretty print array", 5313 .map_type = BPF_MAP_TYPE_ARRAY, 5314 .map_name = "pprint_test_array", 5315 .ordered_map = true, 5316 .lossless_map = true, 5317 .percpu_map = false, 5318 }, 5319 5320 { 5321 .descr = "BTF pretty print hash", 5322 .map_type = BPF_MAP_TYPE_HASH, 5323 .map_name = "pprint_test_hash", 5324 .ordered_map = false, 5325 .lossless_map = true, 5326 .percpu_map = false, 5327 }, 5328 5329 { 5330 .descr = "BTF pretty print lru hash", 5331 .map_type = BPF_MAP_TYPE_LRU_HASH, 5332 .map_name = "pprint_test_lru_hash", 5333 .ordered_map = false, 5334 .lossless_map = false, 5335 .percpu_map = false, 5336 }, 5337 5338 { 5339 .descr = "BTF pretty print percpu array", 5340 .map_type = BPF_MAP_TYPE_PERCPU_ARRAY, 5341 .map_name = "pprint_test_percpu_array", 5342 .ordered_map = true, 5343 .lossless_map = true, 5344 .percpu_map = true, 5345 }, 5346 5347 { 5348 .descr = "BTF pretty print percpu hash", 5349 .map_type = BPF_MAP_TYPE_PERCPU_HASH, 5350 .map_name = "pprint_test_percpu_hash", 5351 .ordered_map = false, 5352 .lossless_map = true, 5353 .percpu_map = true, 5354 }, 5355 5356 { 5357 .descr = "BTF pretty print lru percpu hash", 5358 .map_type = BPF_MAP_TYPE_LRU_PERCPU_HASH, 5359 .map_name = "pprint_test_lru_percpu_hash", 5360 .ordered_map = false, 5361 .lossless_map = false, 5362 .percpu_map = true, 5363 }, 5364 5365 }; 5366 5367 static size_t get_pprint_mapv_size(enum pprint_mapv_kind_t mapv_kind) 5368 { 5369 if (mapv_kind == PPRINT_MAPV_KIND_BASIC) 5370 return sizeof(struct pprint_mapv); 5371 5372 #ifdef __SIZEOF_INT128__ 5373 if (mapv_kind == PPRINT_MAPV_KIND_INT128) 5374 return sizeof(struct pprint_mapv_int128); 5375 #endif 5376 5377 assert(0); 5378 return 0; 5379 } 5380 5381 static void set_pprint_mapv(enum pprint_mapv_kind_t mapv_kind, 5382 void *mapv, uint32_t i, 5383 int num_cpus, int rounded_value_size) 5384 { 5385 int cpu; 5386 5387 if (mapv_kind == PPRINT_MAPV_KIND_BASIC) { 5388 struct pprint_mapv *v = mapv; 5389 5390 for (cpu = 0; cpu < num_cpus; cpu++) { 5391 v->ui32 = i + cpu; 5392 v->si32 = -i; 5393 v->unused_bits2a = 3; 5394 v->bits28 = i; 5395 v->unused_bits2b = 3; 5396 v->ui64 = i; 5397 v->aenum = i & 0x03; 5398 v->ui32b = 4; 5399 v->bits2c = 1; 5400 v->si8_4[0][0] = (cpu + i) & 0xff; 5401 v->si8_4[0][1] = (cpu + i + 1) & 0xff; 5402 v->si8_4[1][0] = (cpu + i + 2) & 0xff; 5403 v->si8_4[1][1] = (cpu + i + 3) & 0xff; 5404 v = (void *)v + rounded_value_size; 5405 } 5406 } 5407 5408 #ifdef __SIZEOF_INT128__ 5409 if (mapv_kind == PPRINT_MAPV_KIND_INT128) { 5410 struct pprint_mapv_int128 *v = mapv; 5411 5412 for (cpu = 0; cpu < num_cpus; cpu++) { 5413 v->si128a = i; 5414 v->si128b = -i; 5415 v->bits3 = i & 0x07; 5416 v->bits80 = (((unsigned __int128)1) << 64) + i; 5417 v->ui128 = (((unsigned __int128)2) << 64) + i; 5418 v = (void *)v + rounded_value_size; 5419 } 5420 } 5421 #endif 5422 } 5423 5424 ssize_t get_pprint_expected_line(enum pprint_mapv_kind_t mapv_kind, 5425 char *expected_line, ssize_t line_size, 5426 bool percpu_map, unsigned int next_key, 5427 int cpu, void *mapv) 5428 { 5429 ssize_t nexpected_line = -1; 5430 5431 if (mapv_kind == PPRINT_MAPV_KIND_BASIC) { 5432 struct pprint_mapv *v = mapv; 5433 5434 nexpected_line = snprintf(expected_line, line_size, 5435 "%s%u: {%u,0,%d,0x%x,0x%x,0x%x," 5436 "{%llu|[%u,%u,%u,%u,%u,%u,%u,%u]},%s," 5437 "%u,0x%x,[[%d,%d],[%d,%d]]}\n", 5438 percpu_map ? "\tcpu" : "", 5439 percpu_map ? cpu : next_key, 5440 v->ui32, v->si32, 5441 v->unused_bits2a, 5442 v->bits28, 5443 v->unused_bits2b, 5444 (__u64)v->ui64, 5445 v->ui8a[0], v->ui8a[1], 5446 v->ui8a[2], v->ui8a[3], 5447 v->ui8a[4], v->ui8a[5], 5448 v->ui8a[6], v->ui8a[7], 5449 pprint_enum_str[v->aenum], 5450 v->ui32b, 5451 v->bits2c, 5452 v->si8_4[0][0], v->si8_4[0][1], 5453 v->si8_4[1][0], v->si8_4[1][1]); 5454 } 5455 5456 #ifdef __SIZEOF_INT128__ 5457 if (mapv_kind == PPRINT_MAPV_KIND_INT128) { 5458 struct pprint_mapv_int128 *v = mapv; 5459 5460 nexpected_line = snprintf(expected_line, line_size, 5461 "%s%u: {0x%lx,0x%lx,0x%lx," 5462 "0x%lx%016lx,0x%lx%016lx}\n", 5463 percpu_map ? "\tcpu" : "", 5464 percpu_map ? cpu : next_key, 5465 (uint64_t)v->si128a, 5466 (uint64_t)v->si128b, 5467 (uint64_t)v->bits3, 5468 (uint64_t)(v->bits80 >> 64), 5469 (uint64_t)v->bits80, 5470 (uint64_t)(v->ui128 >> 64), 5471 (uint64_t)v->ui128); 5472 } 5473 #endif 5474 5475 return nexpected_line; 5476 } 5477 5478 static int check_line(const char *expected_line, int nexpected_line, 5479 int expected_line_len, const char *line) 5480 { 5481 if (CHECK(nexpected_line == expected_line_len, 5482 "expected_line is too long")) 5483 return -1; 5484 5485 if (strcmp(expected_line, line)) { 5486 fprintf(stderr, "unexpected pprint output\n"); 5487 fprintf(stderr, "expected: %s", expected_line); 5488 fprintf(stderr, " read: %s", line); 5489 return -1; 5490 } 5491 5492 return 0; 5493 } 5494 5495 5496 static void do_test_pprint(int test_num) 5497 { 5498 const struct btf_raw_test *test = &pprint_test_template[test_num]; 5499 enum pprint_mapv_kind_t mapv_kind = test->mapv_kind; 5500 LIBBPF_OPTS(bpf_map_create_opts, opts); 5501 bool ordered_map, lossless_map, percpu_map; 5502 int err, ret, num_cpus, rounded_value_size; 5503 unsigned int key, nr_read_elems; 5504 int map_fd = -1, btf_fd = -1; 5505 unsigned int raw_btf_size; 5506 char expected_line[255]; 5507 FILE *pin_file = NULL; 5508 char pin_path[255]; 5509 size_t line_len = 0; 5510 char *line = NULL; 5511 void *mapv = NULL; 5512 uint8_t *raw_btf; 5513 ssize_t nread; 5514 5515 if (!test__start_subtest(test->descr)) 5516 return; 5517 5518 raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, 5519 test->str_sec, test->str_sec_size, 5520 &raw_btf_size, NULL); 5521 5522 if (!raw_btf) 5523 return; 5524 5525 *btf_log_buf = '\0'; 5526 btf_fd = load_raw_btf(raw_btf, raw_btf_size); 5527 free(raw_btf); 5528 5529 if (CHECK(btf_fd < 0, "errno:%d\n", errno)) { 5530 err = -1; 5531 goto done; 5532 } 5533 5534 opts.btf_fd = btf_fd; 5535 opts.btf_key_type_id = test->key_type_id; 5536 opts.btf_value_type_id = test->value_type_id; 5537 map_fd = bpf_map_create(test->map_type, test->map_name, 5538 test->key_size, test->value_size, test->max_entries, &opts); 5539 if (CHECK(map_fd < 0, "errno:%d", errno)) { 5540 err = -1; 5541 goto done; 5542 } 5543 5544 ret = snprintf(pin_path, sizeof(pin_path), "%s/%s", 5545 "/sys/fs/bpf", test->map_name); 5546 5547 if (CHECK(ret >= sizeof(pin_path), "pin_path %s/%s is too long", 5548 "/sys/fs/bpf", test->map_name)) { 5549 err = -1; 5550 goto done; 5551 } 5552 5553 err = bpf_obj_pin(map_fd, pin_path); 5554 if (CHECK(err, "bpf_obj_pin(%s): errno:%d.", pin_path, errno)) 5555 goto done; 5556 5557 percpu_map = test->percpu_map; 5558 num_cpus = percpu_map ? bpf_num_possible_cpus() : 1; 5559 rounded_value_size = round_up(get_pprint_mapv_size(mapv_kind), 8); 5560 mapv = calloc(num_cpus, rounded_value_size); 5561 if (CHECK(!mapv, "mapv allocation failure")) { 5562 err = -1; 5563 goto done; 5564 } 5565 5566 for (key = 0; key < test->max_entries; key++) { 5567 set_pprint_mapv(mapv_kind, mapv, key, num_cpus, rounded_value_size); 5568 bpf_map_update_elem(map_fd, &key, mapv, 0); 5569 } 5570 5571 pin_file = fopen(pin_path, "r"); 5572 if (CHECK(!pin_file, "fopen(%s): errno:%d", pin_path, errno)) { 5573 err = -1; 5574 goto done; 5575 } 5576 5577 /* Skip lines start with '#' */ 5578 while ((nread = getline(&line, &line_len, pin_file)) > 0 && 5579 *line == '#') 5580 ; 5581 5582 if (CHECK(nread <= 0, "Unexpected EOF")) { 5583 err = -1; 5584 goto done; 5585 } 5586 5587 nr_read_elems = 0; 5588 ordered_map = test->ordered_map; 5589 lossless_map = test->lossless_map; 5590 do { 5591 ssize_t nexpected_line; 5592 unsigned int next_key; 5593 void *cmapv; 5594 int cpu; 5595 5596 next_key = ordered_map ? nr_read_elems : atoi(line); 5597 set_pprint_mapv(mapv_kind, mapv, next_key, num_cpus, rounded_value_size); 5598 cmapv = mapv; 5599 5600 for (cpu = 0; cpu < num_cpus; cpu++) { 5601 if (percpu_map) { 5602 /* for percpu map, the format looks like: 5603 * <key>: { 5604 * cpu0: <value_on_cpu0> 5605 * cpu1: <value_on_cpu1> 5606 * ... 5607 * cpun: <value_on_cpun> 5608 * } 5609 * 5610 * let us verify the line containing the key here. 5611 */ 5612 if (cpu == 0) { 5613 nexpected_line = snprintf(expected_line, 5614 sizeof(expected_line), 5615 "%u: {\n", 5616 next_key); 5617 5618 err = check_line(expected_line, nexpected_line, 5619 sizeof(expected_line), line); 5620 if (err < 0) 5621 goto done; 5622 } 5623 5624 /* read value@cpu */ 5625 nread = getline(&line, &line_len, pin_file); 5626 if (nread < 0) 5627 break; 5628 } 5629 5630 nexpected_line = get_pprint_expected_line(mapv_kind, expected_line, 5631 sizeof(expected_line), 5632 percpu_map, next_key, 5633 cpu, cmapv); 5634 err = check_line(expected_line, nexpected_line, 5635 sizeof(expected_line), line); 5636 if (err < 0) 5637 goto done; 5638 5639 cmapv = cmapv + rounded_value_size; 5640 } 5641 5642 if (percpu_map) { 5643 /* skip the last bracket for the percpu map */ 5644 nread = getline(&line, &line_len, pin_file); 5645 if (nread < 0) 5646 break; 5647 } 5648 5649 nread = getline(&line, &line_len, pin_file); 5650 } while (++nr_read_elems < test->max_entries && nread > 0); 5651 5652 if (lossless_map && 5653 CHECK(nr_read_elems < test->max_entries, 5654 "Unexpected EOF. nr_read_elems:%u test->max_entries:%u", 5655 nr_read_elems, test->max_entries)) { 5656 err = -1; 5657 goto done; 5658 } 5659 5660 if (CHECK(nread > 0, "Unexpected extra pprint output: %s", line)) { 5661 err = -1; 5662 goto done; 5663 } 5664 5665 err = 0; 5666 5667 done: 5668 if (mapv) 5669 free(mapv); 5670 if (!err) 5671 fprintf(stderr, "OK"); 5672 if (*btf_log_buf && (err || always_log)) 5673 fprintf(stderr, "\n%s", btf_log_buf); 5674 if (btf_fd >= 0) 5675 close(btf_fd); 5676 if (map_fd >= 0) 5677 close(map_fd); 5678 if (pin_file) 5679 fclose(pin_file); 5680 unlink(pin_path); 5681 free(line); 5682 } 5683 5684 static void test_pprint(void) 5685 { 5686 unsigned int i; 5687 5688 /* test various maps with the first test template */ 5689 for (i = 0; i < ARRAY_SIZE(pprint_tests_meta); i++) { 5690 pprint_test_template[0].descr = pprint_tests_meta[i].descr; 5691 pprint_test_template[0].map_type = pprint_tests_meta[i].map_type; 5692 pprint_test_template[0].map_name = pprint_tests_meta[i].map_name; 5693 pprint_test_template[0].ordered_map = pprint_tests_meta[i].ordered_map; 5694 pprint_test_template[0].lossless_map = pprint_tests_meta[i].lossless_map; 5695 pprint_test_template[0].percpu_map = pprint_tests_meta[i].percpu_map; 5696 5697 do_test_pprint(0); 5698 } 5699 5700 /* test rest test templates with the first map */ 5701 for (i = 1; i < ARRAY_SIZE(pprint_test_template); i++) { 5702 pprint_test_template[i].descr = pprint_tests_meta[0].descr; 5703 pprint_test_template[i].map_type = pprint_tests_meta[0].map_type; 5704 pprint_test_template[i].map_name = pprint_tests_meta[0].map_name; 5705 pprint_test_template[i].ordered_map = pprint_tests_meta[0].ordered_map; 5706 pprint_test_template[i].lossless_map = pprint_tests_meta[0].lossless_map; 5707 pprint_test_template[i].percpu_map = pprint_tests_meta[0].percpu_map; 5708 do_test_pprint(i); 5709 } 5710 } 5711 5712 #define BPF_LINE_INFO_ENC(insn_off, file_off, line_off, line_num, line_col) \ 5713 (insn_off), (file_off), (line_off), ((line_num) << 10 | ((line_col) & 0x3ff)) 5714 5715 static struct prog_info_raw_test { 5716 const char *descr; 5717 const char *str_sec; 5718 const char *err_str; 5719 __u32 raw_types[MAX_NR_RAW_U32]; 5720 __u32 str_sec_size; 5721 struct bpf_insn insns[MAX_INSNS]; 5722 __u32 prog_type; 5723 __u32 func_info[MAX_SUBPROGS][2]; 5724 __u32 func_info_rec_size; 5725 __u32 func_info_cnt; 5726 __u32 line_info[MAX_NR_RAW_U32]; 5727 __u32 line_info_rec_size; 5728 __u32 nr_jited_ksyms; 5729 bool expected_prog_load_failure; 5730 __u32 dead_code_cnt; 5731 __u32 dead_code_mask; 5732 __u32 dead_func_cnt; 5733 __u32 dead_func_mask; 5734 } info_raw_tests[] = { 5735 { 5736 .descr = "func_type (main func + one sub)", 5737 .raw_types = { 5738 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5739 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ 5740 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 5741 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5742 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5743 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ 5744 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5745 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5746 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ 5747 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ 5748 BTF_END_RAW, 5749 }, 5750 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", 5751 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), 5752 .insns = { 5753 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), 5754 BPF_MOV64_IMM(BPF_REG_0, 1), 5755 BPF_EXIT_INSN(), 5756 BPF_MOV64_IMM(BPF_REG_0, 2), 5757 BPF_EXIT_INSN(), 5758 }, 5759 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5760 .func_info = { {0, 5}, {3, 6} }, 5761 .func_info_rec_size = 8, 5762 .func_info_cnt = 2, 5763 .line_info = { BTF_END_RAW }, 5764 }, 5765 5766 { 5767 .descr = "func_type (Incorrect func_info_rec_size)", 5768 .raw_types = { 5769 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5770 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ 5771 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 5772 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5773 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5774 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ 5775 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5776 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5777 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ 5778 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ 5779 BTF_END_RAW, 5780 }, 5781 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", 5782 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), 5783 .insns = { 5784 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), 5785 BPF_MOV64_IMM(BPF_REG_0, 1), 5786 BPF_EXIT_INSN(), 5787 BPF_MOV64_IMM(BPF_REG_0, 2), 5788 BPF_EXIT_INSN(), 5789 }, 5790 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5791 .func_info = { {0, 5}, {3, 6} }, 5792 .func_info_rec_size = 4, 5793 .func_info_cnt = 2, 5794 .line_info = { BTF_END_RAW }, 5795 .expected_prog_load_failure = true, 5796 }, 5797 5798 { 5799 .descr = "func_type (Incorrect func_info_cnt)", 5800 .raw_types = { 5801 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5802 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ 5803 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 5804 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5805 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5806 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ 5807 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5808 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5809 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ 5810 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ 5811 BTF_END_RAW, 5812 }, 5813 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", 5814 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), 5815 .insns = { 5816 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), 5817 BPF_MOV64_IMM(BPF_REG_0, 1), 5818 BPF_EXIT_INSN(), 5819 BPF_MOV64_IMM(BPF_REG_0, 2), 5820 BPF_EXIT_INSN(), 5821 }, 5822 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5823 .func_info = { {0, 5}, {3, 6} }, 5824 .func_info_rec_size = 8, 5825 .func_info_cnt = 1, 5826 .line_info = { BTF_END_RAW }, 5827 .expected_prog_load_failure = true, 5828 }, 5829 5830 { 5831 .descr = "func_type (Incorrect bpf_func_info.insn_off)", 5832 .raw_types = { 5833 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5834 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ 5835 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 5836 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5837 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5838 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ 5839 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5840 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5841 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ 5842 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ 5843 BTF_END_RAW, 5844 }, 5845 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", 5846 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), 5847 .insns = { 5848 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), 5849 BPF_MOV64_IMM(BPF_REG_0, 1), 5850 BPF_EXIT_INSN(), 5851 BPF_MOV64_IMM(BPF_REG_0, 2), 5852 BPF_EXIT_INSN(), 5853 }, 5854 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5855 .func_info = { {0, 5}, {2, 6} }, 5856 .func_info_rec_size = 8, 5857 .func_info_cnt = 2, 5858 .line_info = { BTF_END_RAW }, 5859 .expected_prog_load_failure = true, 5860 }, 5861 5862 { 5863 .descr = "line_info (No subprog)", 5864 .raw_types = { 5865 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5866 BTF_END_RAW, 5867 }, 5868 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5869 .insns = { 5870 BPF_MOV64_IMM(BPF_REG_0, 1), 5871 BPF_MOV64_IMM(BPF_REG_1, 2), 5872 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5873 BPF_EXIT_INSN(), 5874 }, 5875 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5876 .func_info_cnt = 0, 5877 .line_info = { 5878 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5879 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 5880 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 5881 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 5882 BTF_END_RAW, 5883 }, 5884 .line_info_rec_size = sizeof(struct bpf_line_info), 5885 .nr_jited_ksyms = 1, 5886 }, 5887 5888 { 5889 .descr = "line_info (No subprog. insn_off >= prog->len)", 5890 .raw_types = { 5891 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5892 BTF_END_RAW, 5893 }, 5894 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5895 .insns = { 5896 BPF_MOV64_IMM(BPF_REG_0, 1), 5897 BPF_MOV64_IMM(BPF_REG_1, 2), 5898 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5899 BPF_EXIT_INSN(), 5900 }, 5901 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5902 .func_info_cnt = 0, 5903 .line_info = { 5904 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5905 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 5906 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 5907 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 5908 BPF_LINE_INFO_ENC(4, 0, 0, 5, 6), 5909 BTF_END_RAW, 5910 }, 5911 .line_info_rec_size = sizeof(struct bpf_line_info), 5912 .nr_jited_ksyms = 1, 5913 .err_str = "line_info[4].insn_off", 5914 .expected_prog_load_failure = true, 5915 }, 5916 5917 { 5918 .descr = "line_info (Zero bpf insn code)", 5919 .raw_types = { 5920 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5921 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), /* [2] */ 5922 BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [3] */ 5923 BTF_END_RAW, 5924 }, 5925 BTF_STR_SEC("\0int\0unsigned long\0u64\0u64 a=1;\0return a;"), 5926 .insns = { 5927 BPF_LD_IMM64(BPF_REG_0, 1), 5928 BPF_EXIT_INSN(), 5929 }, 5930 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5931 .func_info_cnt = 0, 5932 .line_info = { 5933 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5934 BPF_LINE_INFO_ENC(1, 0, 0, 2, 9), 5935 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 5936 BTF_END_RAW, 5937 }, 5938 .line_info_rec_size = sizeof(struct bpf_line_info), 5939 .nr_jited_ksyms = 1, 5940 .err_str = "Invalid insn code at line_info[1]", 5941 .expected_prog_load_failure = true, 5942 }, 5943 5944 { 5945 .descr = "line_info (No subprog. zero tailing line_info", 5946 .raw_types = { 5947 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5948 BTF_END_RAW, 5949 }, 5950 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5951 .insns = { 5952 BPF_MOV64_IMM(BPF_REG_0, 1), 5953 BPF_MOV64_IMM(BPF_REG_1, 2), 5954 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5955 BPF_EXIT_INSN(), 5956 }, 5957 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5958 .func_info_cnt = 0, 5959 .line_info = { 5960 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0, 5961 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0, 5962 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0, 5963 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 0, 5964 BTF_END_RAW, 5965 }, 5966 .line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32), 5967 .nr_jited_ksyms = 1, 5968 }, 5969 5970 { 5971 .descr = "line_info (No subprog. nonzero tailing line_info)", 5972 .raw_types = { 5973 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5974 BTF_END_RAW, 5975 }, 5976 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5977 .insns = { 5978 BPF_MOV64_IMM(BPF_REG_0, 1), 5979 BPF_MOV64_IMM(BPF_REG_1, 2), 5980 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5981 BPF_EXIT_INSN(), 5982 }, 5983 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5984 .func_info_cnt = 0, 5985 .line_info = { 5986 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0, 5987 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0, 5988 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0, 5989 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 1, 5990 BTF_END_RAW, 5991 }, 5992 .line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32), 5993 .nr_jited_ksyms = 1, 5994 .err_str = "nonzero tailing record in line_info", 5995 .expected_prog_load_failure = true, 5996 }, 5997 5998 { 5999 .descr = "line_info (subprog)", 6000 .raw_types = { 6001 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6002 BTF_END_RAW, 6003 }, 6004 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 6005 .insns = { 6006 BPF_MOV64_IMM(BPF_REG_2, 1), 6007 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 6008 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 6009 BPF_CALL_REL(1), 6010 BPF_EXIT_INSN(), 6011 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 6012 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6013 BPF_EXIT_INSN(), 6014 }, 6015 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6016 .func_info_cnt = 0, 6017 .line_info = { 6018 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6019 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), 6020 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), 6021 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 6022 BTF_END_RAW, 6023 }, 6024 .line_info_rec_size = sizeof(struct bpf_line_info), 6025 .nr_jited_ksyms = 2, 6026 }, 6027 6028 { 6029 .descr = "line_info (subprog + func_info)", 6030 .raw_types = { 6031 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6032 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6033 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6034 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6035 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 6036 BTF_END_RAW, 6037 }, 6038 BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 6039 .insns = { 6040 BPF_MOV64_IMM(BPF_REG_2, 1), 6041 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 6042 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 6043 BPF_CALL_REL(1), 6044 BPF_EXIT_INSN(), 6045 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 6046 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6047 BPF_EXIT_INSN(), 6048 }, 6049 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6050 .func_info_cnt = 2, 6051 .func_info_rec_size = 8, 6052 .func_info = { {0, 4}, {5, 3} }, 6053 .line_info = { 6054 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6055 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), 6056 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), 6057 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 6058 BTF_END_RAW, 6059 }, 6060 .line_info_rec_size = sizeof(struct bpf_line_info), 6061 .nr_jited_ksyms = 2, 6062 }, 6063 6064 { 6065 .descr = "line_info (subprog. missing 1st func line info)", 6066 .raw_types = { 6067 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6068 BTF_END_RAW, 6069 }, 6070 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 6071 .insns = { 6072 BPF_MOV64_IMM(BPF_REG_2, 1), 6073 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 6074 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 6075 BPF_CALL_REL(1), 6076 BPF_EXIT_INSN(), 6077 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 6078 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6079 BPF_EXIT_INSN(), 6080 }, 6081 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6082 .func_info_cnt = 0, 6083 .line_info = { 6084 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 1, 10), 6085 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), 6086 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), 6087 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 6088 BTF_END_RAW, 6089 }, 6090 .line_info_rec_size = sizeof(struct bpf_line_info), 6091 .nr_jited_ksyms = 2, 6092 .err_str = "missing bpf_line_info for func#0", 6093 .expected_prog_load_failure = true, 6094 }, 6095 6096 { 6097 .descr = "line_info (subprog. missing 2nd func line info)", 6098 .raw_types = { 6099 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6100 BTF_END_RAW, 6101 }, 6102 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 6103 .insns = { 6104 BPF_MOV64_IMM(BPF_REG_2, 1), 6105 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 6106 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 6107 BPF_CALL_REL(1), 6108 BPF_EXIT_INSN(), 6109 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 6110 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6111 BPF_EXIT_INSN(), 6112 }, 6113 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6114 .func_info_cnt = 0, 6115 .line_info = { 6116 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6117 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), 6118 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 3, 8), 6119 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 6120 BTF_END_RAW, 6121 }, 6122 .line_info_rec_size = sizeof(struct bpf_line_info), 6123 .nr_jited_ksyms = 2, 6124 .err_str = "missing bpf_line_info for func#1", 6125 .expected_prog_load_failure = true, 6126 }, 6127 6128 { 6129 .descr = "line_info (subprog. unordered insn offset)", 6130 .raw_types = { 6131 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6132 BTF_END_RAW, 6133 }, 6134 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 6135 .insns = { 6136 BPF_MOV64_IMM(BPF_REG_2, 1), 6137 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 6138 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 6139 BPF_CALL_REL(1), 6140 BPF_EXIT_INSN(), 6141 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 6142 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6143 BPF_EXIT_INSN(), 6144 }, 6145 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6146 .func_info_cnt = 0, 6147 .line_info = { 6148 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6149 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 2, 9), 6150 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 6151 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 6152 BTF_END_RAW, 6153 }, 6154 .line_info_rec_size = sizeof(struct bpf_line_info), 6155 .nr_jited_ksyms = 2, 6156 .err_str = "Invalid line_info[2].insn_off", 6157 .expected_prog_load_failure = true, 6158 }, 6159 6160 { 6161 .descr = "line_info (dead start)", 6162 .raw_types = { 6163 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6164 BTF_END_RAW, 6165 }, 6166 BTF_STR_SEC("\0int\0/* dead jmp */\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 6167 .insns = { 6168 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 6169 BPF_MOV64_IMM(BPF_REG_0, 1), 6170 BPF_MOV64_IMM(BPF_REG_1, 2), 6171 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 6172 BPF_EXIT_INSN(), 6173 }, 6174 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6175 .func_info_cnt = 0, 6176 .line_info = { 6177 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6178 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 6179 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 6180 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 6181 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 5, 6), 6182 BTF_END_RAW, 6183 }, 6184 .line_info_rec_size = sizeof(struct bpf_line_info), 6185 .nr_jited_ksyms = 1, 6186 .dead_code_cnt = 1, 6187 .dead_code_mask = 0x01, 6188 }, 6189 6190 { 6191 .descr = "line_info (dead end)", 6192 .raw_types = { 6193 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6194 BTF_END_RAW, 6195 }, 6196 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0/* dead jmp */\0return a + b;\0/* dead exit */"), 6197 .insns = { 6198 BPF_MOV64_IMM(BPF_REG_0, 1), 6199 BPF_MOV64_IMM(BPF_REG_1, 2), 6200 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 6201 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1), 6202 BPF_EXIT_INSN(), 6203 BPF_EXIT_INSN(), 6204 }, 6205 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6206 .func_info_cnt = 0, 6207 .line_info = { 6208 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 12), 6209 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 11), 6210 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 10), 6211 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 9), 6212 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 5, 8), 6213 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 6, 7), 6214 BTF_END_RAW, 6215 }, 6216 .line_info_rec_size = sizeof(struct bpf_line_info), 6217 .nr_jited_ksyms = 1, 6218 .dead_code_cnt = 2, 6219 .dead_code_mask = 0x28, 6220 }, 6221 6222 { 6223 .descr = "line_info (dead code + subprog + func_info)", 6224 .raw_types = { 6225 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6226 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6227 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6228 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6229 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 6230 BTF_END_RAW, 6231 }, 6232 BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0/* dead jmp */" 6233 "\0/* dead */\0/* dead */\0/* dead */\0/* dead */" 6234 "\0/* dead */\0/* dead */\0/* dead */\0/* dead */" 6235 "\0return func(a);\0b+=1;\0return b;"), 6236 .insns = { 6237 BPF_MOV64_IMM(BPF_REG_2, 1), 6238 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 6239 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 6240 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 8), 6241 BPF_MOV64_IMM(BPF_REG_2, 1), 6242 BPF_MOV64_IMM(BPF_REG_2, 1), 6243 BPF_MOV64_IMM(BPF_REG_2, 1), 6244 BPF_MOV64_IMM(BPF_REG_2, 1), 6245 BPF_MOV64_IMM(BPF_REG_2, 1), 6246 BPF_MOV64_IMM(BPF_REG_2, 1), 6247 BPF_MOV64_IMM(BPF_REG_2, 1), 6248 BPF_MOV64_IMM(BPF_REG_2, 1), 6249 BPF_CALL_REL(1), 6250 BPF_EXIT_INSN(), 6251 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 6252 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6253 BPF_EXIT_INSN(), 6254 }, 6255 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6256 .func_info_cnt = 2, 6257 .func_info_rec_size = 8, 6258 .func_info = { {0, 4}, {14, 3} }, 6259 .line_info = { 6260 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6261 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 6262 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 6263 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 6264 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 6265 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), 6266 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), 6267 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), 6268 BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10), 6269 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9), 6270 BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9), 6271 BPF_LINE_INFO_ENC(14, 0, NAME_TBD, 3, 8), 6272 BPF_LINE_INFO_ENC(16, 0, NAME_TBD, 4, 7), 6273 BTF_END_RAW, 6274 }, 6275 .line_info_rec_size = sizeof(struct bpf_line_info), 6276 .nr_jited_ksyms = 2, 6277 .dead_code_cnt = 9, 6278 .dead_code_mask = 0x3fe, 6279 }, 6280 6281 { 6282 .descr = "line_info (dead subprog)", 6283 .raw_types = { 6284 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6285 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6286 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6287 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6288 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 6289 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ 6290 BTF_END_RAW, 6291 }, 6292 BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* live call */" 6293 "\0return 0;\0return 0;\0/* dead */\0/* dead */" 6294 "\0/* dead */\0return bla + 1;\0return bla + 1;" 6295 "\0return bla + 1;\0return func(a);\0b+=1;\0return b;"), 6296 .insns = { 6297 BPF_MOV64_IMM(BPF_REG_2, 1), 6298 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), 6299 BPF_CALL_REL(3), 6300 BPF_CALL_REL(5), 6301 BPF_MOV64_IMM(BPF_REG_0, 0), 6302 BPF_EXIT_INSN(), 6303 BPF_MOV64_IMM(BPF_REG_0, 0), 6304 BPF_CALL_REL(1), 6305 BPF_EXIT_INSN(), 6306 BPF_MOV64_REG(BPF_REG_0, 2), 6307 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6308 BPF_EXIT_INSN(), 6309 }, 6310 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6311 .func_info_cnt = 3, 6312 .func_info_rec_size = 8, 6313 .func_info = { {0, 4}, {6, 3}, {9, 5} }, 6314 .line_info = { 6315 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6316 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 6317 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 6318 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 6319 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 6320 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), 6321 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), 6322 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), 6323 BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10), 6324 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9), 6325 BTF_END_RAW, 6326 }, 6327 .line_info_rec_size = sizeof(struct bpf_line_info), 6328 .nr_jited_ksyms = 2, 6329 .dead_code_cnt = 3, 6330 .dead_code_mask = 0x70, 6331 .dead_func_cnt = 1, 6332 .dead_func_mask = 0x2, 6333 }, 6334 6335 { 6336 .descr = "line_info (dead last subprog)", 6337 .raw_types = { 6338 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6339 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6340 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6341 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6342 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ 6343 BTF_END_RAW, 6344 }, 6345 BTF_STR_SEC("\0int\0x\0dead\0main\0int a=1+1;\0/* live call */" 6346 "\0return 0;\0/* dead */\0/* dead */"), 6347 .insns = { 6348 BPF_MOV64_IMM(BPF_REG_2, 1), 6349 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), 6350 BPF_CALL_REL(2), 6351 BPF_MOV64_IMM(BPF_REG_0, 0), 6352 BPF_EXIT_INSN(), 6353 BPF_MOV64_IMM(BPF_REG_0, 0), 6354 BPF_EXIT_INSN(), 6355 }, 6356 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6357 .func_info_cnt = 2, 6358 .func_info_rec_size = 8, 6359 .func_info = { {0, 4}, {5, 3} }, 6360 .line_info = { 6361 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6362 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 6363 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 6364 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 6365 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 6366 BTF_END_RAW, 6367 }, 6368 .line_info_rec_size = sizeof(struct bpf_line_info), 6369 .nr_jited_ksyms = 1, 6370 .dead_code_cnt = 2, 6371 .dead_code_mask = 0x18, 6372 .dead_func_cnt = 1, 6373 .dead_func_mask = 0x2, 6374 }, 6375 6376 { 6377 .descr = "line_info (dead subprog + dead start)", 6378 .raw_types = { 6379 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6380 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6381 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6382 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6383 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 6384 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ 6385 BTF_END_RAW, 6386 }, 6387 BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* dead */" 6388 "\0return 0;\0return 0;\0return 0;" 6389 "\0/* dead */\0/* dead */\0/* dead */\0/* dead */" 6390 "\0return b + 1;\0return b + 1;\0return b + 1;"), 6391 .insns = { 6392 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 6393 BPF_MOV64_IMM(BPF_REG_2, 1), 6394 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), 6395 BPF_CALL_REL(3), 6396 BPF_CALL_REL(5), 6397 BPF_MOV64_IMM(BPF_REG_0, 0), 6398 BPF_EXIT_INSN(), 6399 BPF_MOV64_IMM(BPF_REG_0, 0), 6400 BPF_CALL_REL(1), 6401 BPF_EXIT_INSN(), 6402 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 6403 BPF_MOV64_REG(BPF_REG_0, 2), 6404 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6405 BPF_EXIT_INSN(), 6406 }, 6407 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6408 .func_info_cnt = 3, 6409 .func_info_rec_size = 8, 6410 .func_info = { {0, 4}, {7, 3}, {10, 5} }, 6411 .line_info = { 6412 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6413 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 6414 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 6415 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 6416 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 6417 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), 6418 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), 6419 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), 6420 BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10), 6421 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9), 6422 BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9), 6423 BPF_LINE_INFO_ENC(13, 0, NAME_TBD, 2, 9), 6424 BTF_END_RAW, 6425 }, 6426 .line_info_rec_size = sizeof(struct bpf_line_info), 6427 .nr_jited_ksyms = 2, 6428 .dead_code_cnt = 5, 6429 .dead_code_mask = 0x1e2, 6430 .dead_func_cnt = 1, 6431 .dead_func_mask = 0x2, 6432 }, 6433 6434 { 6435 .descr = "line_info (dead subprog + dead start w/ move)", 6436 .raw_types = { 6437 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6438 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6439 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6440 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6441 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 6442 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ 6443 BTF_END_RAW, 6444 }, 6445 BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* live call */" 6446 "\0return 0;\0return 0;\0/* dead */\0/* dead */" 6447 "\0/* dead */\0return bla + 1;\0return bla + 1;" 6448 "\0return bla + 1;\0return func(a);\0b+=1;\0return b;"), 6449 .insns = { 6450 BPF_MOV64_IMM(BPF_REG_2, 1), 6451 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), 6452 BPF_CALL_REL(3), 6453 BPF_CALL_REL(5), 6454 BPF_MOV64_IMM(BPF_REG_0, 0), 6455 BPF_EXIT_INSN(), 6456 BPF_MOV64_IMM(BPF_REG_0, 0), 6457 BPF_CALL_REL(1), 6458 BPF_EXIT_INSN(), 6459 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 6460 BPF_MOV64_REG(BPF_REG_0, 2), 6461 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6462 BPF_EXIT_INSN(), 6463 }, 6464 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6465 .func_info_cnt = 3, 6466 .func_info_rec_size = 8, 6467 .func_info = { {0, 4}, {6, 3}, {9, 5} }, 6468 .line_info = { 6469 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6470 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 6471 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 6472 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 6473 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 6474 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), 6475 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), 6476 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), 6477 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 1, 10), 6478 BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9), 6479 BTF_END_RAW, 6480 }, 6481 .line_info_rec_size = sizeof(struct bpf_line_info), 6482 .nr_jited_ksyms = 2, 6483 .dead_code_cnt = 3, 6484 .dead_code_mask = 0x70, 6485 .dead_func_cnt = 1, 6486 .dead_func_mask = 0x2, 6487 }, 6488 6489 { 6490 .descr = "line_info (dead end + subprog start w/ no linfo)", 6491 .raw_types = { 6492 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6493 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6494 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6495 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6496 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 6497 BTF_END_RAW, 6498 }, 6499 BTF_STR_SEC("\0int\0x\0main\0func\0/* main linfo */\0/* func linfo */"), 6500 .insns = { 6501 BPF_MOV64_IMM(BPF_REG_0, 0), 6502 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 1, 3), 6503 BPF_CALL_REL(3), 6504 BPF_MOV64_IMM(BPF_REG_0, 0), 6505 BPF_EXIT_INSN(), 6506 BPF_EXIT_INSN(), 6507 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 6508 BPF_EXIT_INSN(), 6509 }, 6510 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6511 .func_info_cnt = 2, 6512 .func_info_rec_size = 8, 6513 .func_info = { {0, 3}, {6, 4}, }, 6514 .line_info = { 6515 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6516 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 6517 BTF_END_RAW, 6518 }, 6519 .line_info_rec_size = sizeof(struct bpf_line_info), 6520 .nr_jited_ksyms = 2, 6521 }, 6522 6523 }; 6524 6525 static size_t probe_prog_length(const struct bpf_insn *fp) 6526 { 6527 size_t len; 6528 6529 for (len = MAX_INSNS - 1; len > 0; --len) 6530 if (fp[len].code != 0 || fp[len].imm != 0) 6531 break; 6532 return len + 1; 6533 } 6534 6535 static __u32 *patch_name_tbd(const __u32 *raw_u32, 6536 const char *str, __u32 str_off, 6537 unsigned int str_sec_size, 6538 unsigned int *ret_size) 6539 { 6540 int i, raw_u32_size = get_raw_sec_size(raw_u32); 6541 const char *end_str = str + str_sec_size; 6542 const char *next_str = str + str_off; 6543 __u32 *new_u32 = NULL; 6544 6545 if (raw_u32_size == -1) 6546 return ERR_PTR(-EINVAL); 6547 6548 if (!raw_u32_size) { 6549 *ret_size = 0; 6550 return NULL; 6551 } 6552 6553 new_u32 = malloc(raw_u32_size); 6554 if (!new_u32) 6555 return ERR_PTR(-ENOMEM); 6556 6557 for (i = 0; i < raw_u32_size / sizeof(raw_u32[0]); i++) { 6558 if (raw_u32[i] == NAME_TBD) { 6559 next_str = get_next_str(next_str, end_str); 6560 if (CHECK(!next_str, "Error in getting next_str\n")) { 6561 free(new_u32); 6562 return ERR_PTR(-EINVAL); 6563 } 6564 new_u32[i] = next_str - str; 6565 next_str += strlen(next_str); 6566 } else { 6567 new_u32[i] = raw_u32[i]; 6568 } 6569 } 6570 6571 *ret_size = raw_u32_size; 6572 return new_u32; 6573 } 6574 6575 static int test_get_finfo(const struct prog_info_raw_test *test, 6576 int prog_fd) 6577 { 6578 struct bpf_prog_info info = {}; 6579 struct bpf_func_info *finfo; 6580 __u32 info_len, rec_size, i; 6581 void *func_info = NULL; 6582 __u32 nr_func_info; 6583 int err; 6584 6585 /* get necessary lens */ 6586 info_len = sizeof(struct bpf_prog_info); 6587 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len); 6588 if (CHECK(err < 0, "invalid get info (1st) errno:%d", errno)) { 6589 fprintf(stderr, "%s\n", btf_log_buf); 6590 return -1; 6591 } 6592 nr_func_info = test->func_info_cnt - test->dead_func_cnt; 6593 if (CHECK(info.nr_func_info != nr_func_info, 6594 "incorrect info.nr_func_info (1st) %d", 6595 info.nr_func_info)) { 6596 return -1; 6597 } 6598 6599 rec_size = info.func_info_rec_size; 6600 if (CHECK(rec_size != sizeof(struct bpf_func_info), 6601 "incorrect info.func_info_rec_size (1st) %d", rec_size)) { 6602 return -1; 6603 } 6604 6605 if (!info.nr_func_info) 6606 return 0; 6607 6608 func_info = malloc(info.nr_func_info * rec_size); 6609 if (CHECK(!func_info, "out of memory")) 6610 return -1; 6611 6612 /* reset info to only retrieve func_info related data */ 6613 memset(&info, 0, sizeof(info)); 6614 info.nr_func_info = nr_func_info; 6615 info.func_info_rec_size = rec_size; 6616 info.func_info = ptr_to_u64(func_info); 6617 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len); 6618 if (CHECK(err < 0, "invalid get info (2nd) errno:%d", errno)) { 6619 fprintf(stderr, "%s\n", btf_log_buf); 6620 err = -1; 6621 goto done; 6622 } 6623 if (CHECK(info.nr_func_info != nr_func_info, 6624 "incorrect info.nr_func_info (2nd) %d", 6625 info.nr_func_info)) { 6626 err = -1; 6627 goto done; 6628 } 6629 if (CHECK(info.func_info_rec_size != rec_size, 6630 "incorrect info.func_info_rec_size (2nd) %d", 6631 info.func_info_rec_size)) { 6632 err = -1; 6633 goto done; 6634 } 6635 6636 finfo = func_info; 6637 for (i = 0; i < nr_func_info; i++) { 6638 if (test->dead_func_mask & (1 << i)) 6639 continue; 6640 if (CHECK(finfo->type_id != test->func_info[i][1], 6641 "incorrect func_type %u expected %u", 6642 finfo->type_id, test->func_info[i][1])) { 6643 err = -1; 6644 goto done; 6645 } 6646 finfo = (void *)finfo + rec_size; 6647 } 6648 6649 err = 0; 6650 6651 done: 6652 free(func_info); 6653 return err; 6654 } 6655 6656 static int test_get_linfo(const struct prog_info_raw_test *test, 6657 const void *patched_linfo, 6658 __u32 cnt, int prog_fd) 6659 { 6660 __u32 i, info_len, nr_jited_ksyms, nr_jited_func_lens; 6661 __u64 *jited_linfo = NULL, *jited_ksyms = NULL; 6662 __u32 rec_size, jited_rec_size, jited_cnt; 6663 struct bpf_line_info *linfo = NULL; 6664 __u32 cur_func_len, ksyms_found; 6665 struct bpf_prog_info info = {}; 6666 __u32 *jited_func_lens = NULL; 6667 __u64 cur_func_ksyms; 6668 __u32 dead_insns; 6669 int err; 6670 6671 jited_cnt = cnt; 6672 rec_size = sizeof(*linfo); 6673 jited_rec_size = sizeof(*jited_linfo); 6674 if (test->nr_jited_ksyms) 6675 nr_jited_ksyms = test->nr_jited_ksyms; 6676 else 6677 nr_jited_ksyms = test->func_info_cnt - test->dead_func_cnt; 6678 nr_jited_func_lens = nr_jited_ksyms; 6679 6680 info_len = sizeof(struct bpf_prog_info); 6681 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len); 6682 if (CHECK(err < 0, "err:%d errno:%d", err, errno)) { 6683 err = -1; 6684 goto done; 6685 } 6686 6687 if (!info.jited_prog_len) { 6688 /* prog is not jited */ 6689 jited_cnt = 0; 6690 nr_jited_ksyms = 1; 6691 nr_jited_func_lens = 1; 6692 } 6693 6694 if (CHECK(info.nr_line_info != cnt || 6695 info.nr_jited_line_info != jited_cnt || 6696 info.nr_jited_ksyms != nr_jited_ksyms || 6697 info.nr_jited_func_lens != nr_jited_func_lens || 6698 (!info.nr_line_info && info.nr_jited_line_info), 6699 "info: nr_line_info:%u(expected:%u) nr_jited_line_info:%u(expected:%u) nr_jited_ksyms:%u(expected:%u) nr_jited_func_lens:%u(expected:%u)", 6700 info.nr_line_info, cnt, 6701 info.nr_jited_line_info, jited_cnt, 6702 info.nr_jited_ksyms, nr_jited_ksyms, 6703 info.nr_jited_func_lens, nr_jited_func_lens)) { 6704 err = -1; 6705 goto done; 6706 } 6707 6708 if (CHECK(info.line_info_rec_size != sizeof(struct bpf_line_info) || 6709 info.jited_line_info_rec_size != sizeof(__u64), 6710 "info: line_info_rec_size:%u(userspace expected:%u) jited_line_info_rec_size:%u(userspace expected:%u)", 6711 info.line_info_rec_size, rec_size, 6712 info.jited_line_info_rec_size, jited_rec_size)) { 6713 err = -1; 6714 goto done; 6715 } 6716 6717 if (!cnt) 6718 return 0; 6719 6720 rec_size = info.line_info_rec_size; 6721 jited_rec_size = info.jited_line_info_rec_size; 6722 6723 memset(&info, 0, sizeof(info)); 6724 6725 linfo = calloc(cnt, rec_size); 6726 if (CHECK(!linfo, "!linfo")) { 6727 err = -1; 6728 goto done; 6729 } 6730 info.nr_line_info = cnt; 6731 info.line_info_rec_size = rec_size; 6732 info.line_info = ptr_to_u64(linfo); 6733 6734 if (jited_cnt) { 6735 jited_linfo = calloc(jited_cnt, jited_rec_size); 6736 jited_ksyms = calloc(nr_jited_ksyms, sizeof(*jited_ksyms)); 6737 jited_func_lens = calloc(nr_jited_func_lens, 6738 sizeof(*jited_func_lens)); 6739 if (CHECK(!jited_linfo || !jited_ksyms || !jited_func_lens, 6740 "jited_linfo:%p jited_ksyms:%p jited_func_lens:%p", 6741 jited_linfo, jited_ksyms, jited_func_lens)) { 6742 err = -1; 6743 goto done; 6744 } 6745 6746 info.nr_jited_line_info = jited_cnt; 6747 info.jited_line_info_rec_size = jited_rec_size; 6748 info.jited_line_info = ptr_to_u64(jited_linfo); 6749 info.nr_jited_ksyms = nr_jited_ksyms; 6750 info.jited_ksyms = ptr_to_u64(jited_ksyms); 6751 info.nr_jited_func_lens = nr_jited_func_lens; 6752 info.jited_func_lens = ptr_to_u64(jited_func_lens); 6753 } 6754 6755 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len); 6756 6757 /* 6758 * Only recheck the info.*line_info* fields. 6759 * Other fields are not the concern of this test. 6760 */ 6761 if (CHECK(err < 0 || 6762 info.nr_line_info != cnt || 6763 (jited_cnt && !info.jited_line_info) || 6764 info.nr_jited_line_info != jited_cnt || 6765 info.line_info_rec_size != rec_size || 6766 info.jited_line_info_rec_size != jited_rec_size, 6767 "err:%d errno:%d info: nr_line_info:%u(expected:%u) nr_jited_line_info:%u(expected:%u) line_info_rec_size:%u(expected:%u) jited_linfo_rec_size:%u(expected:%u) line_info:%p jited_line_info:%p", 6768 err, errno, 6769 info.nr_line_info, cnt, 6770 info.nr_jited_line_info, jited_cnt, 6771 info.line_info_rec_size, rec_size, 6772 info.jited_line_info_rec_size, jited_rec_size, 6773 (void *)(long)info.line_info, 6774 (void *)(long)info.jited_line_info)) { 6775 err = -1; 6776 goto done; 6777 } 6778 6779 dead_insns = 0; 6780 while (test->dead_code_mask & (1 << dead_insns)) 6781 dead_insns++; 6782 6783 CHECK(linfo[0].insn_off, "linfo[0].insn_off:%u", 6784 linfo[0].insn_off); 6785 for (i = 1; i < cnt; i++) { 6786 const struct bpf_line_info *expected_linfo; 6787 6788 while (test->dead_code_mask & (1 << (i + dead_insns))) 6789 dead_insns++; 6790 6791 expected_linfo = patched_linfo + 6792 ((i + dead_insns) * test->line_info_rec_size); 6793 if (CHECK(linfo[i].insn_off <= linfo[i - 1].insn_off, 6794 "linfo[%u].insn_off:%u <= linfo[%u].insn_off:%u", 6795 i, linfo[i].insn_off, 6796 i - 1, linfo[i - 1].insn_off)) { 6797 err = -1; 6798 goto done; 6799 } 6800 if (CHECK(linfo[i].file_name_off != expected_linfo->file_name_off || 6801 linfo[i].line_off != expected_linfo->line_off || 6802 linfo[i].line_col != expected_linfo->line_col, 6803 "linfo[%u] (%u, %u, %u) != (%u, %u, %u)", i, 6804 linfo[i].file_name_off, 6805 linfo[i].line_off, 6806 linfo[i].line_col, 6807 expected_linfo->file_name_off, 6808 expected_linfo->line_off, 6809 expected_linfo->line_col)) { 6810 err = -1; 6811 goto done; 6812 } 6813 } 6814 6815 if (!jited_cnt) { 6816 fprintf(stderr, "not jited. skipping jited_line_info check. "); 6817 err = 0; 6818 goto done; 6819 } 6820 6821 if (CHECK(jited_linfo[0] != jited_ksyms[0], 6822 "jited_linfo[0]:%lx != jited_ksyms[0]:%lx", 6823 (long)(jited_linfo[0]), (long)(jited_ksyms[0]))) { 6824 err = -1; 6825 goto done; 6826 } 6827 6828 ksyms_found = 1; 6829 cur_func_len = jited_func_lens[0]; 6830 cur_func_ksyms = jited_ksyms[0]; 6831 for (i = 1; i < jited_cnt; i++) { 6832 if (ksyms_found < nr_jited_ksyms && 6833 jited_linfo[i] == jited_ksyms[ksyms_found]) { 6834 cur_func_ksyms = jited_ksyms[ksyms_found]; 6835 cur_func_len = jited_ksyms[ksyms_found]; 6836 ksyms_found++; 6837 continue; 6838 } 6839 6840 if (CHECK(jited_linfo[i] <= jited_linfo[i - 1], 6841 "jited_linfo[%u]:%lx <= jited_linfo[%u]:%lx", 6842 i, (long)jited_linfo[i], 6843 i - 1, (long)(jited_linfo[i - 1]))) { 6844 err = -1; 6845 goto done; 6846 } 6847 6848 if (CHECK(jited_linfo[i] - cur_func_ksyms > cur_func_len, 6849 "jited_linfo[%u]:%lx - %lx > %u", 6850 i, (long)jited_linfo[i], (long)cur_func_ksyms, 6851 cur_func_len)) { 6852 err = -1; 6853 goto done; 6854 } 6855 } 6856 6857 if (CHECK(ksyms_found != nr_jited_ksyms, 6858 "ksyms_found:%u != nr_jited_ksyms:%u", 6859 ksyms_found, nr_jited_ksyms)) { 6860 err = -1; 6861 goto done; 6862 } 6863 6864 err = 0; 6865 6866 done: 6867 free(linfo); 6868 free(jited_linfo); 6869 free(jited_ksyms); 6870 free(jited_func_lens); 6871 return err; 6872 } 6873 6874 static void do_test_info_raw(unsigned int test_num) 6875 { 6876 const struct prog_info_raw_test *test = &info_raw_tests[test_num - 1]; 6877 unsigned int raw_btf_size, linfo_str_off, linfo_size = 0; 6878 int btf_fd = -1, prog_fd = -1, err = 0; 6879 void *raw_btf, *patched_linfo = NULL; 6880 const char *ret_next_str; 6881 union bpf_attr attr = {}; 6882 6883 if (!test__start_subtest(test->descr)) 6884 return; 6885 6886 raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, 6887 test->str_sec, test->str_sec_size, 6888 &raw_btf_size, &ret_next_str); 6889 if (!raw_btf) 6890 return; 6891 6892 *btf_log_buf = '\0'; 6893 btf_fd = load_raw_btf(raw_btf, raw_btf_size); 6894 free(raw_btf); 6895 6896 if (CHECK(btf_fd < 0, "invalid btf_fd errno:%d", errno)) { 6897 err = -1; 6898 goto done; 6899 } 6900 6901 if (*btf_log_buf && always_log) 6902 fprintf(stderr, "\n%s", btf_log_buf); 6903 *btf_log_buf = '\0'; 6904 6905 linfo_str_off = ret_next_str - test->str_sec; 6906 patched_linfo = patch_name_tbd(test->line_info, 6907 test->str_sec, linfo_str_off, 6908 test->str_sec_size, &linfo_size); 6909 err = libbpf_get_error(patched_linfo); 6910 if (err) { 6911 fprintf(stderr, "error in creating raw bpf_line_info"); 6912 err = -1; 6913 goto done; 6914 } 6915 6916 attr.prog_type = test->prog_type; 6917 attr.insns = ptr_to_u64(test->insns); 6918 attr.insn_cnt = probe_prog_length(test->insns); 6919 attr.license = ptr_to_u64("GPL"); 6920 attr.prog_btf_fd = btf_fd; 6921 attr.func_info_rec_size = test->func_info_rec_size; 6922 attr.func_info_cnt = test->func_info_cnt; 6923 attr.func_info = ptr_to_u64(test->func_info); 6924 attr.log_buf = ptr_to_u64(btf_log_buf); 6925 attr.log_size = BTF_LOG_BUF_SIZE; 6926 attr.log_level = 1; 6927 if (linfo_size) { 6928 attr.line_info_rec_size = test->line_info_rec_size; 6929 attr.line_info = ptr_to_u64(patched_linfo); 6930 attr.line_info_cnt = linfo_size / attr.line_info_rec_size; 6931 } 6932 6933 prog_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr)); 6934 err = ((prog_fd < 0) != test->expected_prog_load_failure); 6935 if (CHECK(err, "prog_fd:%d expected_prog_load_failure:%u errno:%d", 6936 prog_fd, test->expected_prog_load_failure, errno) || 6937 CHECK(test->err_str && !strstr(btf_log_buf, test->err_str), 6938 "expected err_str:%s", test->err_str)) { 6939 err = -1; 6940 goto done; 6941 } 6942 6943 if (prog_fd < 0) 6944 goto done; 6945 6946 err = test_get_finfo(test, prog_fd); 6947 if (err) 6948 goto done; 6949 6950 err = test_get_linfo(test, patched_linfo, 6951 attr.line_info_cnt - test->dead_code_cnt, 6952 prog_fd); 6953 if (err) 6954 goto done; 6955 6956 done: 6957 if (*btf_log_buf && (err || always_log)) 6958 fprintf(stderr, "\n%s", btf_log_buf); 6959 6960 if (btf_fd >= 0) 6961 close(btf_fd); 6962 if (prog_fd >= 0) 6963 close(prog_fd); 6964 6965 if (!libbpf_get_error(patched_linfo)) 6966 free(patched_linfo); 6967 } 6968 6969 struct btf_raw_data { 6970 __u32 raw_types[MAX_NR_RAW_U32]; 6971 const char *str_sec; 6972 __u32 str_sec_size; 6973 }; 6974 6975 struct btf_dedup_test { 6976 const char *descr; 6977 struct btf_raw_data input; 6978 struct btf_raw_data expect; 6979 struct btf_dedup_opts opts; 6980 }; 6981 6982 static struct btf_dedup_test dedup_tests[] = { 6983 6984 { 6985 .descr = "dedup: unused strings filtering", 6986 .input = { 6987 .raw_types = { 6988 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 4), 6989 BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 64, 8), 6990 BTF_END_RAW, 6991 }, 6992 BTF_STR_SEC("\0unused\0int\0foo\0bar\0long"), 6993 }, 6994 .expect = { 6995 .raw_types = { 6996 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 6997 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8), 6998 BTF_END_RAW, 6999 }, 7000 BTF_STR_SEC("\0int\0long"), 7001 }, 7002 }, 7003 { 7004 .descr = "dedup: strings deduplication", 7005 .input = { 7006 .raw_types = { 7007 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 7008 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8), 7009 BTF_TYPE_INT_ENC(NAME_NTH(3), BTF_INT_SIGNED, 0, 32, 4), 7010 BTF_TYPE_INT_ENC(NAME_NTH(4), BTF_INT_SIGNED, 0, 64, 8), 7011 BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 32, 4), 7012 BTF_END_RAW, 7013 }, 7014 BTF_STR_SEC("\0int\0long int\0int\0long int\0int"), 7015 }, 7016 .expect = { 7017 .raw_types = { 7018 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 7019 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8), 7020 BTF_END_RAW, 7021 }, 7022 BTF_STR_SEC("\0int\0long int"), 7023 }, 7024 }, 7025 { 7026 .descr = "dedup: struct example #1", 7027 /* 7028 * struct s { 7029 * struct s *next; 7030 * const int *a; 7031 * int b[16]; 7032 * int c; 7033 * } 7034 */ 7035 .input = { 7036 .raw_types = { 7037 /* int */ 7038 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7039 /* int[16] */ 7040 BTF_TYPE_ARRAY_ENC(1, 1, 16), /* [2] */ 7041 /* struct s { */ 7042 BTF_STRUCT_ENC(NAME_NTH(2), 5, 88), /* [3] */ 7043 BTF_MEMBER_ENC(NAME_NTH(3), 4, 0), /* struct s *next; */ 7044 BTF_MEMBER_ENC(NAME_NTH(4), 5, 64), /* const int *a; */ 7045 BTF_MEMBER_ENC(NAME_NTH(5), 2, 128), /* int b[16]; */ 7046 BTF_MEMBER_ENC(NAME_NTH(6), 1, 640), /* int c; */ 7047 BTF_MEMBER_ENC(NAME_NTH(8), 15, 672), /* float d; */ 7048 /* ptr -> [3] struct s */ 7049 BTF_PTR_ENC(3), /* [4] */ 7050 /* ptr -> [6] const int */ 7051 BTF_PTR_ENC(6), /* [5] */ 7052 /* const -> [1] int */ 7053 BTF_CONST_ENC(1), /* [6] */ 7054 /* tag -> [3] struct s */ 7055 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [7] */ 7056 /* tag -> [3] struct s, member 1 */ 7057 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, 1), /* [8] */ 7058 7059 /* full copy of the above */ 7060 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [9] */ 7061 BTF_TYPE_ARRAY_ENC(9, 9, 16), /* [10] */ 7062 BTF_STRUCT_ENC(NAME_NTH(2), 5, 88), /* [11] */ 7063 BTF_MEMBER_ENC(NAME_NTH(3), 12, 0), 7064 BTF_MEMBER_ENC(NAME_NTH(4), 13, 64), 7065 BTF_MEMBER_ENC(NAME_NTH(5), 10, 128), 7066 BTF_MEMBER_ENC(NAME_NTH(6), 9, 640), 7067 BTF_MEMBER_ENC(NAME_NTH(8), 15, 672), 7068 BTF_PTR_ENC(11), /* [12] */ 7069 BTF_PTR_ENC(14), /* [13] */ 7070 BTF_CONST_ENC(9), /* [14] */ 7071 BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4), /* [15] */ 7072 BTF_DECL_TAG_ENC(NAME_NTH(2), 11, -1), /* [16] */ 7073 BTF_DECL_TAG_ENC(NAME_NTH(2), 11, 1), /* [17] */ 7074 BTF_END_RAW, 7075 }, 7076 BTF_STR_SEC("\0int\0s\0next\0a\0b\0c\0float\0d"), 7077 }, 7078 .expect = { 7079 .raw_types = { 7080 /* int */ 7081 BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7082 /* int[16] */ 7083 BTF_TYPE_ARRAY_ENC(1, 1, 16), /* [2] */ 7084 /* struct s { */ 7085 BTF_STRUCT_ENC(NAME_NTH(8), 5, 88), /* [3] */ 7086 BTF_MEMBER_ENC(NAME_NTH(7), 4, 0), /* struct s *next; */ 7087 BTF_MEMBER_ENC(NAME_NTH(1), 5, 64), /* const int *a; */ 7088 BTF_MEMBER_ENC(NAME_NTH(2), 2, 128), /* int b[16]; */ 7089 BTF_MEMBER_ENC(NAME_NTH(3), 1, 640), /* int c; */ 7090 BTF_MEMBER_ENC(NAME_NTH(4), 9, 672), /* float d; */ 7091 /* ptr -> [3] struct s */ 7092 BTF_PTR_ENC(3), /* [4] */ 7093 /* ptr -> [6] const int */ 7094 BTF_PTR_ENC(6), /* [5] */ 7095 /* const -> [1] int */ 7096 BTF_CONST_ENC(1), /* [6] */ 7097 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [7] */ 7098 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, 1), /* [8] */ 7099 BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4), /* [9] */ 7100 BTF_END_RAW, 7101 }, 7102 BTF_STR_SEC("\0a\0b\0c\0d\0int\0float\0next\0s"), 7103 }, 7104 }, 7105 { 7106 .descr = "dedup: struct <-> fwd resolution w/ hash collision", 7107 /* 7108 * // CU 1: 7109 * struct x; 7110 * struct s { 7111 * struct x *x; 7112 * }; 7113 * // CU 2: 7114 * struct x {}; 7115 * struct s { 7116 * struct x *x; 7117 * }; 7118 */ 7119 .input = { 7120 .raw_types = { 7121 /* CU 1 */ 7122 BTF_FWD_ENC(NAME_TBD, 0 /* struct fwd */), /* [1] fwd x */ 7123 BTF_PTR_ENC(1), /* [2] ptr -> [1] */ 7124 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [3] struct s */ 7125 BTF_MEMBER_ENC(NAME_TBD, 2, 0), 7126 /* CU 2 */ 7127 BTF_STRUCT_ENC(NAME_TBD, 0, 0), /* [4] struct x */ 7128 BTF_PTR_ENC(4), /* [5] ptr -> [4] */ 7129 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [6] struct s */ 7130 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 7131 BTF_END_RAW, 7132 }, 7133 BTF_STR_SEC("\0x\0s\0x\0x\0s\0x\0"), 7134 }, 7135 .expect = { 7136 .raw_types = { 7137 BTF_PTR_ENC(3), /* [1] ptr -> [3] */ 7138 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [2] struct s */ 7139 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 7140 BTF_STRUCT_ENC(NAME_NTH(2), 0, 0), /* [3] struct x */ 7141 BTF_END_RAW, 7142 }, 7143 BTF_STR_SEC("\0s\0x"), 7144 }, 7145 .opts = { 7146 .force_collisions = true, /* force hash collisions */ 7147 }, 7148 }, 7149 { 7150 .descr = "dedup: void equiv check", 7151 /* 7152 * // CU 1: 7153 * struct s { 7154 * struct {} *x; 7155 * }; 7156 * // CU 2: 7157 * struct s { 7158 * int *x; 7159 * }; 7160 */ 7161 .input = { 7162 .raw_types = { 7163 /* CU 1 */ 7164 BTF_STRUCT_ENC(0, 0, 1), /* [1] struct {} */ 7165 BTF_PTR_ENC(1), /* [2] ptr -> [1] */ 7166 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [3] struct s */ 7167 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7168 /* CU 2 */ 7169 BTF_PTR_ENC(0), /* [4] ptr -> void */ 7170 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [5] struct s */ 7171 BTF_MEMBER_ENC(NAME_NTH(2), 4, 0), 7172 BTF_END_RAW, 7173 }, 7174 BTF_STR_SEC("\0s\0x"), 7175 }, 7176 .expect = { 7177 .raw_types = { 7178 /* CU 1 */ 7179 BTF_STRUCT_ENC(0, 0, 1), /* [1] struct {} */ 7180 BTF_PTR_ENC(1), /* [2] ptr -> [1] */ 7181 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [3] struct s */ 7182 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7183 /* CU 2 */ 7184 BTF_PTR_ENC(0), /* [4] ptr -> void */ 7185 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [5] struct s */ 7186 BTF_MEMBER_ENC(NAME_NTH(2), 4, 0), 7187 BTF_END_RAW, 7188 }, 7189 BTF_STR_SEC("\0s\0x"), 7190 }, 7191 .opts = { 7192 .force_collisions = true, /* force hash collisions */ 7193 }, 7194 }, 7195 { 7196 .descr = "dedup: all possible kinds (no duplicates)", 7197 .input = { 7198 .raw_types = { 7199 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 8), /* [1] int */ 7200 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 4), /* [2] enum */ 7201 BTF_ENUM_ENC(NAME_TBD, 0), 7202 BTF_ENUM_ENC(NAME_TBD, 1), 7203 BTF_FWD_ENC(NAME_TBD, 1 /* union kind_flag */), /* [3] fwd */ 7204 BTF_TYPE_ARRAY_ENC(2, 1, 7), /* [4] array */ 7205 BTF_STRUCT_ENC(NAME_TBD, 1, 4), /* [5] struct */ 7206 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 7207 BTF_UNION_ENC(NAME_TBD, 1, 4), /* [6] union */ 7208 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 7209 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [7] typedef */ 7210 BTF_PTR_ENC(0), /* [8] ptr */ 7211 BTF_CONST_ENC(8), /* [9] const */ 7212 BTF_VOLATILE_ENC(8), /* [10] volatile */ 7213 BTF_RESTRICT_ENC(8), /* [11] restrict */ 7214 BTF_FUNC_PROTO_ENC(1, 2), /* [12] func_proto */ 7215 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 7216 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 18), 7217 BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */ 7218 BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [14] float */ 7219 BTF_DECL_TAG_ENC(NAME_TBD, 13, -1), /* [15] decl_tag */ 7220 BTF_DECL_TAG_ENC(NAME_TBD, 13, 1), /* [16] decl_tag */ 7221 BTF_DECL_TAG_ENC(NAME_TBD, 7, -1), /* [17] decl_tag */ 7222 BTF_TYPE_TAG_ENC(NAME_TBD, 8), /* [18] type_tag */ 7223 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8), /* [19] enum64 */ 7224 BTF_ENUM64_ENC(NAME_TBD, 0, 0), 7225 BTF_ENUM64_ENC(NAME_TBD, 1, 1), 7226 BTF_END_RAW, 7227 }, 7228 BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R\0S\0T\0U"), 7229 }, 7230 .expect = { 7231 .raw_types = { 7232 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 8), /* [1] int */ 7233 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 4), /* [2] enum */ 7234 BTF_ENUM_ENC(NAME_TBD, 0), 7235 BTF_ENUM_ENC(NAME_TBD, 1), 7236 BTF_FWD_ENC(NAME_TBD, 1 /* union kind_flag */), /* [3] fwd */ 7237 BTF_TYPE_ARRAY_ENC(2, 1, 7), /* [4] array */ 7238 BTF_STRUCT_ENC(NAME_TBD, 1, 4), /* [5] struct */ 7239 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 7240 BTF_UNION_ENC(NAME_TBD, 1, 4), /* [6] union */ 7241 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 7242 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [7] typedef */ 7243 BTF_PTR_ENC(0), /* [8] ptr */ 7244 BTF_CONST_ENC(8), /* [9] const */ 7245 BTF_VOLATILE_ENC(8), /* [10] volatile */ 7246 BTF_RESTRICT_ENC(8), /* [11] restrict */ 7247 BTF_FUNC_PROTO_ENC(1, 2), /* [12] func_proto */ 7248 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 7249 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 18), 7250 BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */ 7251 BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [14] float */ 7252 BTF_DECL_TAG_ENC(NAME_TBD, 13, -1), /* [15] decl_tag */ 7253 BTF_DECL_TAG_ENC(NAME_TBD, 13, 1), /* [16] decl_tag */ 7254 BTF_DECL_TAG_ENC(NAME_TBD, 7, -1), /* [17] decl_tag */ 7255 BTF_TYPE_TAG_ENC(NAME_TBD, 8), /* [18] type_tag */ 7256 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8), /* [19] enum64 */ 7257 BTF_ENUM64_ENC(NAME_TBD, 0, 0), 7258 BTF_ENUM64_ENC(NAME_TBD, 1, 1), 7259 BTF_END_RAW, 7260 }, 7261 BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R\0S\0T\0U"), 7262 }, 7263 }, 7264 { 7265 .descr = "dedup: no int/float duplicates", 7266 .input = { 7267 .raw_types = { 7268 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 8), 7269 /* different name */ 7270 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 8), 7271 /* different encoding */ 7272 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_CHAR, 0, 32, 8), 7273 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_BOOL, 0, 32, 8), 7274 /* different bit offset */ 7275 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 8, 32, 8), 7276 /* different bit size */ 7277 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 27, 8), 7278 /* different byte size */ 7279 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 7280 /* all allowed sizes */ 7281 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 2), 7282 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 4), 7283 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 8), 7284 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 12), 7285 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 16), 7286 BTF_END_RAW, 7287 }, 7288 BTF_STR_SEC("\0int\0some other int\0float"), 7289 }, 7290 .expect = { 7291 .raw_types = { 7292 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 8), 7293 /* different name */ 7294 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 8), 7295 /* different encoding */ 7296 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_CHAR, 0, 32, 8), 7297 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_BOOL, 0, 32, 8), 7298 /* different bit offset */ 7299 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 8, 32, 8), 7300 /* different bit size */ 7301 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 27, 8), 7302 /* different byte size */ 7303 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 7304 /* all allowed sizes */ 7305 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 2), 7306 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 4), 7307 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 8), 7308 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 12), 7309 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 16), 7310 BTF_END_RAW, 7311 }, 7312 BTF_STR_SEC("\0int\0some other int\0float"), 7313 }, 7314 }, 7315 { 7316 .descr = "dedup: enum fwd resolution", 7317 .input = { 7318 .raw_types = { 7319 /* [1] fwd enum 'e1' before full enum */ 7320 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4), 7321 /* [2] full enum 'e1' after fwd */ 7322 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7323 BTF_ENUM_ENC(NAME_NTH(2), 123), 7324 /* [3] full enum 'e2' before fwd */ 7325 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7326 BTF_ENUM_ENC(NAME_NTH(4), 456), 7327 /* [4] fwd enum 'e2' after full enum */ 7328 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4), 7329 /* [5] fwd enum with different size, size does not matter for fwd */ 7330 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 1), 7331 /* [6] incompatible full enum with different value */ 7332 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7333 BTF_ENUM_ENC(NAME_NTH(2), 321), 7334 BTF_END_RAW, 7335 }, 7336 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), 7337 }, 7338 .expect = { 7339 .raw_types = { 7340 /* [1] full enum 'e1' */ 7341 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7342 BTF_ENUM_ENC(NAME_NTH(2), 123), 7343 /* [2] full enum 'e2' */ 7344 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7345 BTF_ENUM_ENC(NAME_NTH(4), 456), 7346 /* [3] incompatible full enum with different value */ 7347 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7348 BTF_ENUM_ENC(NAME_NTH(2), 321), 7349 BTF_END_RAW, 7350 }, 7351 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), 7352 }, 7353 }, 7354 { 7355 .descr = "dedup: datasec and vars pass-through", 7356 .input = { 7357 .raw_types = { 7358 /* int */ 7359 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7360 /* static int t */ 7361 BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [2] */ 7362 /* .bss section */ /* [3] */ 7363 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 7364 BTF_VAR_SECINFO_ENC(2, 0, 4), 7365 /* int, referenced from [5] */ 7366 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [4] */ 7367 /* another static int t */ 7368 BTF_VAR_ENC(NAME_NTH(2), 4, 0), /* [5] */ 7369 /* another .bss section */ /* [6] */ 7370 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 7371 BTF_VAR_SECINFO_ENC(5, 0, 4), 7372 BTF_END_RAW, 7373 }, 7374 BTF_STR_SEC("\0.bss\0t"), 7375 }, 7376 .expect = { 7377 .raw_types = { 7378 /* int */ 7379 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7380 /* static int t */ 7381 BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [2] */ 7382 /* .bss section */ /* [3] */ 7383 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 7384 BTF_VAR_SECINFO_ENC(2, 0, 4), 7385 /* another static int t */ 7386 BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [4] */ 7387 /* another .bss section */ /* [5] */ 7388 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 7389 BTF_VAR_SECINFO_ENC(4, 0, 4), 7390 BTF_END_RAW, 7391 }, 7392 BTF_STR_SEC("\0.bss\0t"), 7393 }, 7394 .opts = { 7395 .force_collisions = true 7396 }, 7397 }, 7398 { 7399 .descr = "dedup: func/func_arg/var tags", 7400 .input = { 7401 .raw_types = { 7402 /* int */ 7403 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7404 /* static int t */ 7405 BTF_VAR_ENC(NAME_NTH(1), 1, 0), /* [2] */ 7406 /* void f(int a1, int a2) */ 7407 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ 7408 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), 7409 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1), 7410 BTF_FUNC_ENC(NAME_NTH(4), 3), /* [4] */ 7411 /* tag -> t */ 7412 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */ 7413 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [6] */ 7414 /* tag -> func */ 7415 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [7] */ 7416 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [8] */ 7417 /* tag -> func arg a1 */ 7418 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [9] */ 7419 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [10] */ 7420 BTF_END_RAW, 7421 }, 7422 BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"), 7423 }, 7424 .expect = { 7425 .raw_types = { 7426 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7427 BTF_VAR_ENC(NAME_NTH(1), 1, 0), /* [2] */ 7428 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ 7429 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), 7430 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1), 7431 BTF_FUNC_ENC(NAME_NTH(4), 3), /* [4] */ 7432 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */ 7433 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [6] */ 7434 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [7] */ 7435 BTF_END_RAW, 7436 }, 7437 BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"), 7438 }, 7439 }, 7440 { 7441 .descr = "dedup: func/func_param tags", 7442 .input = { 7443 .raw_types = { 7444 /* int */ 7445 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7446 /* void f(int a1, int a2) */ 7447 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ 7448 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1), 7449 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), 7450 BTF_FUNC_ENC(NAME_NTH(3), 2), /* [3] */ 7451 /* void f(int a1, int a2) */ 7452 BTF_FUNC_PROTO_ENC(0, 2), /* [4] */ 7453 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1), 7454 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), 7455 BTF_FUNC_ENC(NAME_NTH(3), 4), /* [5] */ 7456 /* tag -> f: tag1, tag2 */ 7457 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [6] */ 7458 BTF_DECL_TAG_ENC(NAME_NTH(5), 3, -1), /* [7] */ 7459 /* tag -> f/a2: tag1, tag2 */ 7460 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [8] */ 7461 BTF_DECL_TAG_ENC(NAME_NTH(5), 3, 1), /* [9] */ 7462 /* tag -> f: tag1, tag3 */ 7463 BTF_DECL_TAG_ENC(NAME_NTH(4), 5, -1), /* [10] */ 7464 BTF_DECL_TAG_ENC(NAME_NTH(6), 5, -1), /* [11] */ 7465 /* tag -> f/a2: tag1, tag3 */ 7466 BTF_DECL_TAG_ENC(NAME_NTH(4), 5, 1), /* [12] */ 7467 BTF_DECL_TAG_ENC(NAME_NTH(6), 5, 1), /* [13] */ 7468 BTF_END_RAW, 7469 }, 7470 BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"), 7471 }, 7472 .expect = { 7473 .raw_types = { 7474 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7475 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ 7476 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1), 7477 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), 7478 BTF_FUNC_ENC(NAME_NTH(3), 2), /* [3] */ 7479 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [4] */ 7480 BTF_DECL_TAG_ENC(NAME_NTH(5), 3, -1), /* [5] */ 7481 BTF_DECL_TAG_ENC(NAME_NTH(6), 3, -1), /* [6] */ 7482 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [7] */ 7483 BTF_DECL_TAG_ENC(NAME_NTH(5), 3, 1), /* [8] */ 7484 BTF_DECL_TAG_ENC(NAME_NTH(6), 3, 1), /* [9] */ 7485 BTF_END_RAW, 7486 }, 7487 BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"), 7488 }, 7489 }, 7490 { 7491 .descr = "dedup: struct/struct_member tags", 7492 .input = { 7493 .raw_types = { 7494 /* int */ 7495 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7496 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [2] */ 7497 BTF_MEMBER_ENC(NAME_NTH(2), 1, 0), 7498 BTF_MEMBER_ENC(NAME_NTH(3), 1, 32), 7499 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [3] */ 7500 BTF_MEMBER_ENC(NAME_NTH(2), 1, 0), 7501 BTF_MEMBER_ENC(NAME_NTH(3), 1, 32), 7502 /* tag -> t: tag1, tag2 */ 7503 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [4] */ 7504 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */ 7505 /* tag -> t/m2: tag1, tag2 */ 7506 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, 1), /* [6] */ 7507 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, 1), /* [7] */ 7508 /* tag -> t: tag1, tag3 */ 7509 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [8] */ 7510 BTF_DECL_TAG_ENC(NAME_NTH(6), 3, -1), /* [9] */ 7511 /* tag -> t/m2: tag1, tag3 */ 7512 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [10] */ 7513 BTF_DECL_TAG_ENC(NAME_NTH(6), 3, 1), /* [11] */ 7514 BTF_END_RAW, 7515 }, 7516 BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"), 7517 }, 7518 .expect = { 7519 .raw_types = { 7520 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7521 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [2] */ 7522 BTF_MEMBER_ENC(NAME_NTH(2), 1, 0), 7523 BTF_MEMBER_ENC(NAME_NTH(3), 1, 32), 7524 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [3] */ 7525 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [4] */ 7526 BTF_DECL_TAG_ENC(NAME_NTH(6), 2, -1), /* [5] */ 7527 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, 1), /* [6] */ 7528 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, 1), /* [7] */ 7529 BTF_DECL_TAG_ENC(NAME_NTH(6), 2, 1), /* [8] */ 7530 BTF_END_RAW, 7531 }, 7532 BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"), 7533 }, 7534 }, 7535 { 7536 .descr = "dedup: recursive typedef", 7537 /* 7538 * This test simulates a recursive typedef, which in GO is defined as such: 7539 * 7540 * type Foo func() Foo 7541 * 7542 * In BTF terms, this is represented as a TYPEDEF referencing 7543 * a FUNC_PROTO that returns the same TYPEDEF. 7544 */ 7545 .input = { 7546 .raw_types = { 7547 /* 7548 * [1] typedef Foo -> func() Foo 7549 * [2] func_proto() -> Foo 7550 * [3] typedef Foo -> func() Foo 7551 * [4] func_proto() -> Foo 7552 */ 7553 BTF_TYPEDEF_ENC(NAME_NTH(1), 2), /* [1] */ 7554 BTF_FUNC_PROTO_ENC(1, 0), /* [2] */ 7555 BTF_TYPEDEF_ENC(NAME_NTH(1), 4), /* [3] */ 7556 BTF_FUNC_PROTO_ENC(3, 0), /* [4] */ 7557 BTF_END_RAW, 7558 }, 7559 BTF_STR_SEC("\0Foo"), 7560 }, 7561 .expect = { 7562 .raw_types = { 7563 BTF_TYPEDEF_ENC(NAME_NTH(1), 2), /* [1] */ 7564 BTF_FUNC_PROTO_ENC(1, 0), /* [2] */ 7565 BTF_END_RAW, 7566 }, 7567 BTF_STR_SEC("\0Foo"), 7568 }, 7569 }, 7570 { 7571 .descr = "dedup: typedef", 7572 /* 7573 * // CU 1: 7574 * typedef int foo; 7575 * 7576 * // CU 2: 7577 * typedef int foo; 7578 */ 7579 .input = { 7580 .raw_types = { 7581 /* CU 1 */ 7582 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7583 BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [2] */ 7584 /* CU 2 */ 7585 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [3] */ 7586 BTF_TYPEDEF_ENC(NAME_NTH(1), 3), /* [4] */ 7587 BTF_END_RAW, 7588 }, 7589 BTF_STR_SEC("\0foo"), 7590 }, 7591 .expect = { 7592 .raw_types = { 7593 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7594 BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [2] */ 7595 BTF_END_RAW, 7596 }, 7597 BTF_STR_SEC("\0foo"), 7598 }, 7599 }, 7600 { 7601 .descr = "dedup: typedef tags", 7602 .input = { 7603 .raw_types = { 7604 /* int */ 7605 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7606 BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [2] */ 7607 BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [3] */ 7608 /* tag -> t: tag1, tag2 */ 7609 BTF_DECL_TAG_ENC(NAME_NTH(2), 2, -1), /* [4] */ 7610 BTF_DECL_TAG_ENC(NAME_NTH(3), 2, -1), /* [5] */ 7611 /* tag -> t: tag1, tag3 */ 7612 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [6] */ 7613 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [7] */ 7614 BTF_END_RAW, 7615 }, 7616 BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"), 7617 }, 7618 .expect = { 7619 .raw_types = { 7620 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7621 BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [2] */ 7622 BTF_DECL_TAG_ENC(NAME_NTH(2), 2, -1), /* [3] */ 7623 BTF_DECL_TAG_ENC(NAME_NTH(3), 2, -1), /* [4] */ 7624 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [5] */ 7625 BTF_END_RAW, 7626 }, 7627 BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"), 7628 }, 7629 }, 7630 { 7631 .descr = "dedup: btf_type_tag #1", 7632 .input = { 7633 .raw_types = { 7634 /* ptr -> tag2 -> tag1 -> int */ 7635 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7636 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7637 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ 7638 BTF_PTR_ENC(3), /* [4] */ 7639 /* ptr -> tag2 -> tag1 -> int */ 7640 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [5] */ 7641 BTF_TYPE_TAG_ENC(NAME_NTH(2), 5), /* [6] */ 7642 BTF_PTR_ENC(6), /* [7] */ 7643 /* ptr -> tag1 -> int */ 7644 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [8] */ 7645 BTF_PTR_ENC(8), /* [9] */ 7646 BTF_END_RAW, 7647 }, 7648 BTF_STR_SEC("\0tag1\0tag2"), 7649 }, 7650 .expect = { 7651 .raw_types = { 7652 /* ptr -> tag2 -> tag1 -> int */ 7653 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7654 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7655 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ 7656 BTF_PTR_ENC(3), /* [4] */ 7657 /* ptr -> tag1 -> int */ 7658 BTF_PTR_ENC(2), /* [5] */ 7659 BTF_END_RAW, 7660 }, 7661 BTF_STR_SEC("\0tag1\0tag2"), 7662 }, 7663 }, 7664 { 7665 .descr = "dedup: btf_type_tag #2", 7666 .input = { 7667 .raw_types = { 7668 /* ptr -> tag2 -> tag1 -> int */ 7669 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7670 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7671 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ 7672 BTF_PTR_ENC(3), /* [4] */ 7673 /* ptr -> tag2 -> int */ 7674 BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */ 7675 BTF_PTR_ENC(5), /* [6] */ 7676 BTF_END_RAW, 7677 }, 7678 BTF_STR_SEC("\0tag1\0tag2"), 7679 }, 7680 .expect = { 7681 .raw_types = { 7682 /* ptr -> tag2 -> tag1 -> int */ 7683 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7684 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7685 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ 7686 BTF_PTR_ENC(3), /* [4] */ 7687 /* ptr -> tag2 -> int */ 7688 BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */ 7689 BTF_PTR_ENC(5), /* [6] */ 7690 BTF_END_RAW, 7691 }, 7692 BTF_STR_SEC("\0tag1\0tag2"), 7693 }, 7694 }, 7695 { 7696 .descr = "dedup: btf_type_tag #3", 7697 .input = { 7698 .raw_types = { 7699 /* ptr -> tag2 -> tag1 -> int */ 7700 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7701 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7702 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ 7703 BTF_PTR_ENC(3), /* [4] */ 7704 /* ptr -> tag1 -> tag2 -> int */ 7705 BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */ 7706 BTF_TYPE_TAG_ENC(NAME_NTH(1), 5), /* [6] */ 7707 BTF_PTR_ENC(6), /* [7] */ 7708 BTF_END_RAW, 7709 }, 7710 BTF_STR_SEC("\0tag1\0tag2"), 7711 }, 7712 .expect = { 7713 .raw_types = { 7714 /* ptr -> tag2 -> tag1 -> int */ 7715 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7716 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7717 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ 7718 BTF_PTR_ENC(3), /* [4] */ 7719 /* ptr -> tag1 -> tag2 -> int */ 7720 BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */ 7721 BTF_TYPE_TAG_ENC(NAME_NTH(1), 5), /* [6] */ 7722 BTF_PTR_ENC(6), /* [7] */ 7723 BTF_END_RAW, 7724 }, 7725 BTF_STR_SEC("\0tag1\0tag2"), 7726 }, 7727 }, 7728 { 7729 .descr = "dedup: btf_type_tag #4", 7730 .input = { 7731 .raw_types = { 7732 /* ptr -> tag1 -> int */ 7733 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7734 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7735 BTF_PTR_ENC(2), /* [3] */ 7736 /* ptr -> tag1 -> long */ 7737 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8), /* [4] */ 7738 BTF_TYPE_TAG_ENC(NAME_NTH(1), 4), /* [5] */ 7739 BTF_PTR_ENC(5), /* [6] */ 7740 BTF_END_RAW, 7741 }, 7742 BTF_STR_SEC("\0tag1"), 7743 }, 7744 .expect = { 7745 .raw_types = { 7746 /* ptr -> tag1 -> int */ 7747 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7748 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7749 BTF_PTR_ENC(2), /* [3] */ 7750 /* ptr -> tag1 -> long */ 7751 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8), /* [4] */ 7752 BTF_TYPE_TAG_ENC(NAME_NTH(1), 4), /* [5] */ 7753 BTF_PTR_ENC(5), /* [6] */ 7754 BTF_END_RAW, 7755 }, 7756 BTF_STR_SEC("\0tag1"), 7757 }, 7758 }, 7759 { 7760 .descr = "dedup: btf_type_tag #5, struct", 7761 .input = { 7762 .raw_types = { 7763 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7764 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7765 BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4), /* [3] */ 7766 BTF_MEMBER_ENC(NAME_NTH(3), 2, BTF_MEMBER_OFFSET(0, 0)), 7767 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [4] */ 7768 BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4), /* [5] */ 7769 BTF_MEMBER_ENC(NAME_NTH(3), 4, BTF_MEMBER_OFFSET(0, 0)), 7770 BTF_END_RAW, 7771 }, 7772 BTF_STR_SEC("\0tag1\0t\0m"), 7773 }, 7774 .expect = { 7775 .raw_types = { 7776 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7777 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7778 BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4), /* [3] */ 7779 BTF_MEMBER_ENC(NAME_NTH(3), 2, BTF_MEMBER_OFFSET(0, 0)), 7780 BTF_END_RAW, 7781 }, 7782 BTF_STR_SEC("\0tag1\0t\0m"), 7783 }, 7784 }, 7785 { 7786 .descr = "dedup: enum64, standalone", 7787 .input = { 7788 .raw_types = { 7789 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7790 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), 7791 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7792 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), 7793 BTF_END_RAW, 7794 }, 7795 BTF_STR_SEC("\0e1\0e1_val"), 7796 }, 7797 .expect = { 7798 .raw_types = { 7799 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7800 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), 7801 BTF_END_RAW, 7802 }, 7803 BTF_STR_SEC("\0e1\0e1_val"), 7804 }, 7805 }, 7806 { 7807 .descr = "dedup: enum64, fwd resolution", 7808 .input = { 7809 .raw_types = { 7810 /* [1] fwd enum64 'e1' before full enum */ 7811 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8), 7812 /* [2] full enum64 'e1' after fwd */ 7813 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7814 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), 7815 /* [3] full enum64 'e2' before fwd */ 7816 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7817 BTF_ENUM64_ENC(NAME_NTH(4), 0, 456), 7818 /* [4] fwd enum64 'e2' after full enum */ 7819 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8), 7820 /* [5] incompatible full enum64 with different value */ 7821 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7822 BTF_ENUM64_ENC(NAME_NTH(2), 0, 321), 7823 BTF_END_RAW, 7824 }, 7825 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), 7826 }, 7827 .expect = { 7828 .raw_types = { 7829 /* [1] full enum64 'e1' */ 7830 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7831 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), 7832 /* [2] full enum64 'e2' */ 7833 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7834 BTF_ENUM64_ENC(NAME_NTH(4), 0, 456), 7835 /* [3] incompatible full enum64 with different value */ 7836 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7837 BTF_ENUM64_ENC(NAME_NTH(2), 0, 321), 7838 BTF_END_RAW, 7839 }, 7840 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), 7841 }, 7842 }, 7843 { 7844 .descr = "dedup: enum and enum64, no dedup", 7845 .input = { 7846 .raw_types = { 7847 /* [1] enum 'e1' */ 7848 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7849 BTF_ENUM_ENC(NAME_NTH(2), 1), 7850 /* [2] enum64 'e1' */ 7851 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 4), 7852 BTF_ENUM64_ENC(NAME_NTH(2), 1, 0), 7853 BTF_END_RAW, 7854 }, 7855 BTF_STR_SEC("\0e1\0e1_val"), 7856 }, 7857 .expect = { 7858 .raw_types = { 7859 /* [1] enum 'e1' */ 7860 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7861 BTF_ENUM_ENC(NAME_NTH(2), 1), 7862 /* [2] enum64 'e1' */ 7863 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 4), 7864 BTF_ENUM64_ENC(NAME_NTH(2), 1, 0), 7865 BTF_END_RAW, 7866 }, 7867 BTF_STR_SEC("\0e1\0e1_val"), 7868 }, 7869 }, 7870 { 7871 .descr = "dedup: enum of different size: no dedup", 7872 .input = { 7873 .raw_types = { 7874 /* [1] enum 'e1' */ 7875 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7876 BTF_ENUM_ENC(NAME_NTH(2), 1), 7877 /* [2] enum 'e1' */ 7878 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 2), 7879 BTF_ENUM_ENC(NAME_NTH(2), 1), 7880 BTF_END_RAW, 7881 }, 7882 BTF_STR_SEC("\0e1\0e1_val"), 7883 }, 7884 .expect = { 7885 .raw_types = { 7886 /* [1] enum 'e1' */ 7887 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7888 BTF_ENUM_ENC(NAME_NTH(2), 1), 7889 /* [2] enum 'e1' */ 7890 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 2), 7891 BTF_ENUM_ENC(NAME_NTH(2), 1), 7892 BTF_END_RAW, 7893 }, 7894 BTF_STR_SEC("\0e1\0e1_val"), 7895 }, 7896 }, 7897 { 7898 .descr = "dedup: enum fwd to enum64", 7899 .input = { 7900 .raw_types = { 7901 /* [1] enum64 'e1' */ 7902 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7903 BTF_ENUM64_ENC(NAME_NTH(2), 1, 0), 7904 /* [2] enum 'e1' fwd */ 7905 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4), 7906 /* [3] typedef enum 'e1' td */ 7907 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 2), 7908 BTF_END_RAW, 7909 }, 7910 BTF_STR_SEC("\0e1\0e1_val\0td"), 7911 }, 7912 .expect = { 7913 .raw_types = { 7914 /* [1] enum64 'e1' */ 7915 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7916 BTF_ENUM64_ENC(NAME_NTH(2), 1, 0), 7917 /* [2] typedef enum 'e1' td */ 7918 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 1), 7919 BTF_END_RAW, 7920 }, 7921 BTF_STR_SEC("\0e1\0e1_val\0td"), 7922 }, 7923 }, 7924 { 7925 .descr = "dedup: enum64 fwd to enum", 7926 .input = { 7927 .raw_types = { 7928 /* [1] enum 'e1' */ 7929 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7930 BTF_ENUM_ENC(NAME_NTH(2), 1), 7931 /* [2] enum64 'e1' fwd */ 7932 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8), 7933 /* [3] typedef enum 'e1' td */ 7934 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 2), 7935 BTF_END_RAW, 7936 }, 7937 BTF_STR_SEC("\0e1\0e1_val\0td"), 7938 }, 7939 .expect = { 7940 .raw_types = { 7941 /* [1] enum 'e1' */ 7942 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7943 BTF_ENUM_ENC(NAME_NTH(2), 1), 7944 /* [2] typedef enum 'e1' td */ 7945 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 1), 7946 BTF_END_RAW, 7947 }, 7948 BTF_STR_SEC("\0e1\0e1_val\0td"), 7949 }, 7950 }, 7951 { 7952 .descr = "dedup: standalone fwd declaration struct", 7953 /* 7954 * Verify that CU1:foo and CU2:foo would be unified and that 7955 * typedef/ptr would be updated to point to CU1:foo. 7956 * 7957 * // CU 1: 7958 * struct foo { int x; }; 7959 * 7960 * // CU 2: 7961 * struct foo; 7962 * typedef struct foo *foo_ptr; 7963 */ 7964 .input = { 7965 .raw_types = { 7966 /* CU 1 */ 7967 BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ 7968 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7969 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 7970 /* CU 2 */ 7971 BTF_FWD_ENC(NAME_NTH(1), 0), /* [3] */ 7972 BTF_PTR_ENC(3), /* [4] */ 7973 BTF_TYPEDEF_ENC(NAME_NTH(3), 4), /* [5] */ 7974 BTF_END_RAW, 7975 }, 7976 BTF_STR_SEC("\0foo\0x\0foo_ptr"), 7977 }, 7978 .expect = { 7979 .raw_types = { 7980 BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ 7981 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7982 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 7983 BTF_PTR_ENC(1), /* [3] */ 7984 BTF_TYPEDEF_ENC(NAME_NTH(3), 3), /* [4] */ 7985 BTF_END_RAW, 7986 }, 7987 BTF_STR_SEC("\0foo\0x\0foo_ptr"), 7988 }, 7989 }, 7990 { 7991 .descr = "dedup: standalone fwd declaration union", 7992 /* 7993 * Verify that CU1:foo and CU2:foo would be unified and that 7994 * typedef/ptr would be updated to point to CU1:foo. 7995 * Same as "dedup: standalone fwd declaration struct" but for unions. 7996 * 7997 * // CU 1: 7998 * union foo { int x; }; 7999 * 8000 * // CU 2: 8001 * union foo; 8002 * typedef union foo *foo_ptr; 8003 */ 8004 .input = { 8005 .raw_types = { 8006 /* CU 1 */ 8007 BTF_UNION_ENC(NAME_NTH(1), 1, 4), /* [1] */ 8008 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 8009 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 8010 /* CU 2 */ 8011 BTF_FWD_ENC(NAME_TBD, 1), /* [3] */ 8012 BTF_PTR_ENC(3), /* [4] */ 8013 BTF_TYPEDEF_ENC(NAME_NTH(3), 4), /* [5] */ 8014 BTF_END_RAW, 8015 }, 8016 BTF_STR_SEC("\0foo\0x\0foo_ptr"), 8017 }, 8018 .expect = { 8019 .raw_types = { 8020 BTF_UNION_ENC(NAME_NTH(1), 1, 4), /* [1] */ 8021 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 8022 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 8023 BTF_PTR_ENC(1), /* [3] */ 8024 BTF_TYPEDEF_ENC(NAME_NTH(3), 3), /* [4] */ 8025 BTF_END_RAW, 8026 }, 8027 BTF_STR_SEC("\0foo\0x\0foo_ptr"), 8028 }, 8029 }, 8030 { 8031 .descr = "dedup: standalone fwd declaration wrong kind", 8032 /* 8033 * Negative test for btf_dedup_resolve_fwds: 8034 * - CU1:foo is a struct, C2:foo is a union, thus CU2:foo is not deduped; 8035 * - typedef/ptr should remain unchanged as well. 8036 * 8037 * // CU 1: 8038 * struct foo { int x; }; 8039 * 8040 * // CU 2: 8041 * union foo; 8042 * typedef union foo *foo_ptr; 8043 */ 8044 .input = { 8045 .raw_types = { 8046 /* CU 1 */ 8047 BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ 8048 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 8049 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 8050 /* CU 2 */ 8051 BTF_FWD_ENC(NAME_NTH(3), 1), /* [3] */ 8052 BTF_PTR_ENC(3), /* [4] */ 8053 BTF_TYPEDEF_ENC(NAME_NTH(3), 4), /* [5] */ 8054 BTF_END_RAW, 8055 }, 8056 BTF_STR_SEC("\0foo\0x\0foo_ptr"), 8057 }, 8058 .expect = { 8059 .raw_types = { 8060 /* CU 1 */ 8061 BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ 8062 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 8063 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 8064 /* CU 2 */ 8065 BTF_FWD_ENC(NAME_NTH(3), 1), /* [3] */ 8066 BTF_PTR_ENC(3), /* [4] */ 8067 BTF_TYPEDEF_ENC(NAME_NTH(3), 4), /* [5] */ 8068 BTF_END_RAW, 8069 }, 8070 BTF_STR_SEC("\0foo\0x\0foo_ptr"), 8071 }, 8072 }, 8073 { 8074 .descr = "dedup: standalone fwd declaration name conflict", 8075 /* 8076 * Negative test for btf_dedup_resolve_fwds: 8077 * - two candidates for CU2:foo dedup, thus it is unchanged; 8078 * - typedef/ptr should remain unchanged as well. 8079 * 8080 * // CU 1: 8081 * struct foo { int x; }; 8082 * 8083 * // CU 2: 8084 * struct foo; 8085 * typedef struct foo *foo_ptr; 8086 * 8087 * // CU 3: 8088 * struct foo { int x; int y; }; 8089 */ 8090 .input = { 8091 .raw_types = { 8092 /* CU 1 */ 8093 BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ 8094 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 8095 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 8096 /* CU 2 */ 8097 BTF_FWD_ENC(NAME_NTH(1), 0), /* [3] */ 8098 BTF_PTR_ENC(3), /* [4] */ 8099 BTF_TYPEDEF_ENC(NAME_NTH(4), 4), /* [5] */ 8100 /* CU 3 */ 8101 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [6] */ 8102 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 8103 BTF_MEMBER_ENC(NAME_NTH(3), 2, 0), 8104 BTF_END_RAW, 8105 }, 8106 BTF_STR_SEC("\0foo\0x\0y\0foo_ptr"), 8107 }, 8108 .expect = { 8109 .raw_types = { 8110 /* CU 1 */ 8111 BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ 8112 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 8113 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 8114 /* CU 2 */ 8115 BTF_FWD_ENC(NAME_NTH(1), 0), /* [3] */ 8116 BTF_PTR_ENC(3), /* [4] */ 8117 BTF_TYPEDEF_ENC(NAME_NTH(4), 4), /* [5] */ 8118 /* CU 3 */ 8119 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [6] */ 8120 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 8121 BTF_MEMBER_ENC(NAME_NTH(3), 2, 0), 8122 BTF_END_RAW, 8123 }, 8124 BTF_STR_SEC("\0foo\0x\0y\0foo_ptr"), 8125 }, 8126 }, 8127 }; 8128 8129 static int btf_type_size(const struct btf_type *t) 8130 { 8131 int base_size = sizeof(struct btf_type); 8132 __u32 vlen = BTF_INFO_VLEN(t->info); 8133 __u16 kind = BTF_INFO_KIND(t->info); 8134 8135 switch (kind) { 8136 case BTF_KIND_FWD: 8137 case BTF_KIND_CONST: 8138 case BTF_KIND_VOLATILE: 8139 case BTF_KIND_RESTRICT: 8140 case BTF_KIND_PTR: 8141 case BTF_KIND_TYPEDEF: 8142 case BTF_KIND_FUNC: 8143 case BTF_KIND_FLOAT: 8144 case BTF_KIND_TYPE_TAG: 8145 return base_size; 8146 case BTF_KIND_INT: 8147 return base_size + sizeof(__u32); 8148 case BTF_KIND_ENUM: 8149 return base_size + vlen * sizeof(struct btf_enum); 8150 case BTF_KIND_ENUM64: 8151 return base_size + vlen * sizeof(struct btf_enum64); 8152 case BTF_KIND_ARRAY: 8153 return base_size + sizeof(struct btf_array); 8154 case BTF_KIND_STRUCT: 8155 case BTF_KIND_UNION: 8156 return base_size + vlen * sizeof(struct btf_member); 8157 case BTF_KIND_FUNC_PROTO: 8158 return base_size + vlen * sizeof(struct btf_param); 8159 case BTF_KIND_VAR: 8160 return base_size + sizeof(struct btf_var); 8161 case BTF_KIND_DATASEC: 8162 return base_size + vlen * sizeof(struct btf_var_secinfo); 8163 case BTF_KIND_DECL_TAG: 8164 return base_size + sizeof(struct btf_decl_tag); 8165 default: 8166 fprintf(stderr, "Unsupported BTF_KIND:%u\n", kind); 8167 return -EINVAL; 8168 } 8169 } 8170 8171 static void dump_btf_strings(const char *strs, __u32 len) 8172 { 8173 const char *cur = strs; 8174 int i = 0; 8175 8176 while (cur < strs + len) { 8177 fprintf(stderr, "string #%d: '%s'\n", i, cur); 8178 cur += strlen(cur) + 1; 8179 i++; 8180 } 8181 } 8182 8183 static void do_test_dedup(unsigned int test_num) 8184 { 8185 struct btf_dedup_test *test = &dedup_tests[test_num - 1]; 8186 __u32 test_nr_types, expect_nr_types, test_btf_size, expect_btf_size; 8187 const struct btf_header *test_hdr, *expect_hdr; 8188 struct btf *test_btf = NULL, *expect_btf = NULL; 8189 const void *test_btf_data, *expect_btf_data; 8190 const char *ret_test_next_str, *ret_expect_next_str; 8191 const char *test_strs, *expect_strs; 8192 const char *test_str_cur; 8193 const char *expect_str_cur, *expect_str_end; 8194 unsigned int raw_btf_size; 8195 void *raw_btf; 8196 int err = 0, i; 8197 8198 if (!test__start_subtest(test->descr)) 8199 return; 8200 8201 raw_btf = btf_raw_create(&hdr_tmpl, test->input.raw_types, 8202 test->input.str_sec, test->input.str_sec_size, 8203 &raw_btf_size, &ret_test_next_str); 8204 if (!raw_btf) 8205 return; 8206 8207 test_btf = btf__new((__u8 *)raw_btf, raw_btf_size); 8208 err = libbpf_get_error(test_btf); 8209 free(raw_btf); 8210 if (CHECK(err, "invalid test_btf errno:%d", err)) { 8211 err = -1; 8212 goto done; 8213 } 8214 8215 raw_btf = btf_raw_create(&hdr_tmpl, test->expect.raw_types, 8216 test->expect.str_sec, 8217 test->expect.str_sec_size, 8218 &raw_btf_size, &ret_expect_next_str); 8219 if (!raw_btf) 8220 return; 8221 expect_btf = btf__new((__u8 *)raw_btf, raw_btf_size); 8222 err = libbpf_get_error(expect_btf); 8223 free(raw_btf); 8224 if (CHECK(err, "invalid expect_btf errno:%d", err)) { 8225 err = -1; 8226 goto done; 8227 } 8228 8229 test->opts.sz = sizeof(test->opts); 8230 err = btf__dedup(test_btf, &test->opts); 8231 if (CHECK(err, "btf_dedup failed errno:%d", err)) { 8232 err = -1; 8233 goto done; 8234 } 8235 8236 test_btf_data = btf__raw_data(test_btf, &test_btf_size); 8237 expect_btf_data = btf__raw_data(expect_btf, &expect_btf_size); 8238 if (CHECK(test_btf_size != expect_btf_size, 8239 "test_btf_size:%u != expect_btf_size:%u", 8240 test_btf_size, expect_btf_size)) { 8241 err = -1; 8242 goto done; 8243 } 8244 8245 test_hdr = test_btf_data; 8246 test_strs = test_btf_data + sizeof(*test_hdr) + test_hdr->str_off; 8247 expect_hdr = expect_btf_data; 8248 expect_strs = expect_btf_data + sizeof(*test_hdr) + expect_hdr->str_off; 8249 if (CHECK(test_hdr->str_len != expect_hdr->str_len, 8250 "test_hdr->str_len:%u != expect_hdr->str_len:%u", 8251 test_hdr->str_len, expect_hdr->str_len)) { 8252 fprintf(stderr, "\ntest strings:\n"); 8253 dump_btf_strings(test_strs, test_hdr->str_len); 8254 fprintf(stderr, "\nexpected strings:\n"); 8255 dump_btf_strings(expect_strs, expect_hdr->str_len); 8256 err = -1; 8257 goto done; 8258 } 8259 8260 expect_str_cur = expect_strs; 8261 expect_str_end = expect_strs + expect_hdr->str_len; 8262 while (expect_str_cur < expect_str_end) { 8263 size_t test_len, expect_len; 8264 int off; 8265 8266 off = btf__find_str(test_btf, expect_str_cur); 8267 if (CHECK(off < 0, "exp str '%s' not found: %d\n", expect_str_cur, off)) { 8268 err = -1; 8269 goto done; 8270 } 8271 test_str_cur = btf__str_by_offset(test_btf, off); 8272 8273 test_len = strlen(test_str_cur); 8274 expect_len = strlen(expect_str_cur); 8275 if (CHECK(test_len != expect_len, 8276 "test_len:%zu != expect_len:%zu " 8277 "(test_str:%s, expect_str:%s)", 8278 test_len, expect_len, test_str_cur, expect_str_cur)) { 8279 err = -1; 8280 goto done; 8281 } 8282 if (CHECK(strcmp(test_str_cur, expect_str_cur), 8283 "test_str:%s != expect_str:%s", 8284 test_str_cur, expect_str_cur)) { 8285 err = -1; 8286 goto done; 8287 } 8288 expect_str_cur += expect_len + 1; 8289 } 8290 8291 test_nr_types = btf__type_cnt(test_btf); 8292 expect_nr_types = btf__type_cnt(expect_btf); 8293 if (CHECK(test_nr_types != expect_nr_types, 8294 "test_nr_types:%u != expect_nr_types:%u", 8295 test_nr_types, expect_nr_types)) { 8296 err = -1; 8297 goto done; 8298 } 8299 8300 for (i = 1; i < test_nr_types; i++) { 8301 const struct btf_type *test_type, *expect_type; 8302 int test_size, expect_size; 8303 8304 test_type = btf__type_by_id(test_btf, i); 8305 expect_type = btf__type_by_id(expect_btf, i); 8306 test_size = btf_type_size(test_type); 8307 expect_size = btf_type_size(expect_type); 8308 8309 if (CHECK(test_size != expect_size, 8310 "type #%d: test_size:%d != expect_size:%u", 8311 i, test_size, expect_size)) { 8312 err = -1; 8313 goto done; 8314 } 8315 if (CHECK(btf_kind(test_type) != btf_kind(expect_type), 8316 "type %d kind: exp %d != got %u\n", 8317 i, btf_kind(expect_type), btf_kind(test_type))) { 8318 err = -1; 8319 goto done; 8320 } 8321 if (CHECK(test_type->info != expect_type->info, 8322 "type %d info: exp %d != got %u\n", 8323 i, expect_type->info, test_type->info)) { 8324 err = -1; 8325 goto done; 8326 } 8327 if (CHECK(test_type->size != expect_type->size, 8328 "type %d size/type: exp %d != got %u\n", 8329 i, expect_type->size, test_type->size)) { 8330 err = -1; 8331 goto done; 8332 } 8333 } 8334 8335 done: 8336 btf__free(test_btf); 8337 btf__free(expect_btf); 8338 } 8339 8340 void test_btf(void) 8341 { 8342 int i; 8343 8344 always_log = env.verbosity > VERBOSE_NONE; 8345 8346 for (i = 1; i <= ARRAY_SIZE(raw_tests); i++) 8347 do_test_raw(i); 8348 for (i = 1; i <= ARRAY_SIZE(get_info_tests); i++) 8349 do_test_get_info(i); 8350 for (i = 1; i <= ARRAY_SIZE(file_tests); i++) 8351 do_test_file(i); 8352 for (i = 1; i <= ARRAY_SIZE(info_raw_tests); i++) 8353 do_test_info_raw(i); 8354 for (i = 1; i <= ARRAY_SIZE(dedup_tests); i++) 8355 do_test_dedup(i); 8356 test_pprint(); 8357 } 8358