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_INFO", 1928 .raw_types = { 1929 /* int */ /* [1] */ 1930 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 1931 BTF_TYPE_ENC(0, 0x20000000, 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 btf_info", 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, invalid 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_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 1, 0), 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 .btf_load_err = true, 3885 .err_str = "Invalid btf_info kind_flag", 3886 }, 3887 { 3888 .descr = "decl_tag test #9, var, invalid component_idx", 3889 .raw_types = { 3890 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3891 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 3892 BTF_DECL_TAG_ENC(NAME_TBD, 2, 0), 3893 BTF_END_RAW, 3894 }, 3895 BTF_STR_SEC("\0local\0tag"), 3896 .map_type = BPF_MAP_TYPE_ARRAY, 3897 .map_name = "tag_type_check_btf", 3898 .key_size = sizeof(int), 3899 .value_size = 4, 3900 .key_type_id = 1, 3901 .value_type_id = 1, 3902 .max_entries = 1, 3903 .btf_load_err = true, 3904 .err_str = "Invalid component_idx", 3905 }, 3906 { 3907 .descr = "decl_tag test #10, struct member, invalid component_idx", 3908 .raw_types = { 3909 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3910 BTF_STRUCT_ENC(0, 2, 8), /* [2] */ 3911 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 3912 BTF_MEMBER_ENC(NAME_TBD, 1, 32), 3913 BTF_DECL_TAG_ENC(NAME_TBD, 2, 2), 3914 BTF_END_RAW, 3915 }, 3916 BTF_STR_SEC("\0m1\0m2\0tag"), 3917 .map_type = BPF_MAP_TYPE_ARRAY, 3918 .map_name = "tag_type_check_btf", 3919 .key_size = sizeof(int), 3920 .value_size = 8, 3921 .key_type_id = 1, 3922 .value_type_id = 2, 3923 .max_entries = 1, 3924 .btf_load_err = true, 3925 .err_str = "Invalid component_idx", 3926 }, 3927 { 3928 .descr = "decl_tag test #11, func parameter, invalid component_idx", 3929 .raw_types = { 3930 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3931 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ 3932 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 3933 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 3934 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 3935 BTF_DECL_TAG_ENC(NAME_TBD, 3, 2), 3936 BTF_END_RAW, 3937 }, 3938 BTF_STR_SEC("\0arg1\0arg2\0f\0tag"), 3939 .map_type = BPF_MAP_TYPE_ARRAY, 3940 .map_name = "tag_type_check_btf", 3941 .key_size = sizeof(int), 3942 .value_size = 4, 3943 .key_type_id = 1, 3944 .value_type_id = 1, 3945 .max_entries = 1, 3946 .btf_load_err = true, 3947 .err_str = "Invalid component_idx", 3948 }, 3949 { 3950 .descr = "decl_tag test #12, < -1 component_idx", 3951 .raw_types = { 3952 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3953 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ 3954 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 3955 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 3956 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 3957 BTF_DECL_TAG_ENC(NAME_TBD, 3, -2), 3958 BTF_END_RAW, 3959 }, 3960 BTF_STR_SEC("\0arg1\0arg2\0f\0tag"), 3961 .map_type = BPF_MAP_TYPE_ARRAY, 3962 .map_name = "tag_type_check_btf", 3963 .key_size = sizeof(int), 3964 .value_size = 4, 3965 .key_type_id = 1, 3966 .value_type_id = 1, 3967 .max_entries = 1, 3968 .btf_load_err = true, 3969 .err_str = "Invalid component_idx", 3970 }, 3971 { 3972 .descr = "decl_tag test #13, typedef, well-formed", 3973 .raw_types = { 3974 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3975 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */ 3976 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), 3977 BTF_END_RAW, 3978 }, 3979 BTF_STR_SEC("\0t\0tag"), 3980 .map_type = BPF_MAP_TYPE_ARRAY, 3981 .map_name = "tag_type_check_btf", 3982 .key_size = sizeof(int), 3983 .value_size = 4, 3984 .key_type_id = 1, 3985 .value_type_id = 1, 3986 .max_entries = 1, 3987 }, 3988 { 3989 .descr = "decl_tag test #14, typedef, invalid component_idx", 3990 .raw_types = { 3991 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 3992 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */ 3993 BTF_DECL_TAG_ENC(NAME_TBD, 2, 0), 3994 BTF_END_RAW, 3995 }, 3996 BTF_STR_SEC("\0local\0tag"), 3997 .map_type = BPF_MAP_TYPE_ARRAY, 3998 .map_name = "tag_type_check_btf", 3999 .key_size = sizeof(int), 4000 .value_size = 4, 4001 .key_type_id = 1, 4002 .value_type_id = 1, 4003 .max_entries = 1, 4004 .btf_load_err = true, 4005 .err_str = "Invalid component_idx", 4006 }, 4007 { 4008 .descr = "decl_tag test #15, func, invalid func proto", 4009 .raw_types = { 4010 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4011 BTF_DECL_TAG_ENC(NAME_TBD, 3, 0), /* [2] */ 4012 BTF_FUNC_ENC(NAME_TBD, 8), /* [3] */ 4013 BTF_END_RAW, 4014 }, 4015 BTF_STR_SEC("\0tag\0func"), 4016 .map_type = BPF_MAP_TYPE_ARRAY, 4017 .map_name = "tag_type_check_btf", 4018 .key_size = sizeof(int), 4019 .value_size = 4, 4020 .key_type_id = 1, 4021 .value_type_id = 1, 4022 .max_entries = 1, 4023 .btf_load_err = true, 4024 .err_str = "Invalid type_id", 4025 }, 4026 { 4027 .descr = "decl_tag test #16, func proto, return type", 4028 .raw_types = { 4029 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4030 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ 4031 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 0), 2), (-1), /* [3] */ 4032 BTF_FUNC_PROTO_ENC(3, 0), /* [4] */ 4033 BTF_END_RAW, 4034 }, 4035 BTF_STR_SEC("\0local\0tag1"), 4036 .btf_load_err = true, 4037 .err_str = "Invalid return type", 4038 }, 4039 { 4040 .descr = "decl_tag test #17, func proto, argument", 4041 .raw_types = { 4042 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 0), 4), (-1), /* [1] */ 4043 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), /* [2] */ 4044 BTF_FUNC_PROTO_ENC(0, 1), /* [3] */ 4045 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 4046 BTF_VAR_ENC(NAME_TBD, 2, 0), /* [4] */ 4047 BTF_END_RAW, 4048 }, 4049 BTF_STR_SEC("\0local\0tag1\0var"), 4050 .btf_load_err = true, 4051 .err_str = "Invalid arg#1", 4052 }, 4053 { 4054 .descr = "decl_tag test #18, decl_tag as the map key type", 4055 .raw_types = { 4056 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4057 BTF_STRUCT_ENC(0, 2, 8), /* [2] */ 4058 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 4059 BTF_MEMBER_ENC(NAME_TBD, 1, 32), 4060 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), /* [3] */ 4061 BTF_END_RAW, 4062 }, 4063 BTF_STR_SEC("\0m1\0m2\0tag"), 4064 .map_type = BPF_MAP_TYPE_HASH, 4065 .map_name = "tag_type_check_btf", 4066 .key_size = 8, 4067 .value_size = 4, 4068 .key_type_id = 3, 4069 .value_type_id = 1, 4070 .max_entries = 1, 4071 .map_create_err = true, 4072 }, 4073 { 4074 .descr = "decl_tag test #19, decl_tag as the map value type", 4075 .raw_types = { 4076 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4077 BTF_STRUCT_ENC(0, 2, 8), /* [2] */ 4078 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 4079 BTF_MEMBER_ENC(NAME_TBD, 1, 32), 4080 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), /* [3] */ 4081 BTF_END_RAW, 4082 }, 4083 BTF_STR_SEC("\0m1\0m2\0tag"), 4084 .map_type = BPF_MAP_TYPE_HASH, 4085 .map_name = "tag_type_check_btf", 4086 .key_size = 4, 4087 .value_size = 8, 4088 .key_type_id = 1, 4089 .value_type_id = 3, 4090 .max_entries = 1, 4091 .map_create_err = true, 4092 }, 4093 { 4094 .descr = "type_tag test #1", 4095 .raw_types = { 4096 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4097 BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [2] */ 4098 BTF_PTR_ENC(2), /* [3] */ 4099 BTF_END_RAW, 4100 }, 4101 BTF_STR_SEC("\0tag"), 4102 .map_type = BPF_MAP_TYPE_ARRAY, 4103 .map_name = "tag_type_check_btf", 4104 .key_size = sizeof(int), 4105 .value_size = 4, 4106 .key_type_id = 1, 4107 .value_type_id = 1, 4108 .max_entries = 1, 4109 }, 4110 { 4111 .descr = "type_tag test #2, type tag order", 4112 .raw_types = { 4113 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4114 BTF_CONST_ENC(3), /* [2] */ 4115 BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [3] */ 4116 BTF_END_RAW, 4117 }, 4118 BTF_STR_SEC("\0tag"), 4119 .map_type = BPF_MAP_TYPE_ARRAY, 4120 .map_name = "tag_type_check_btf", 4121 .key_size = sizeof(int), 4122 .value_size = 4, 4123 .key_type_id = 1, 4124 .value_type_id = 1, 4125 .max_entries = 1, 4126 .btf_load_err = true, 4127 .err_str = "Type tags don't precede modifiers", 4128 }, 4129 { 4130 .descr = "type_tag test #3, type tag order", 4131 .raw_types = { 4132 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4133 BTF_TYPE_TAG_ENC(NAME_TBD, 3), /* [2] */ 4134 BTF_CONST_ENC(4), /* [3] */ 4135 BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [4] */ 4136 BTF_END_RAW, 4137 }, 4138 BTF_STR_SEC("\0tag\0tag"), 4139 .map_type = BPF_MAP_TYPE_ARRAY, 4140 .map_name = "tag_type_check_btf", 4141 .key_size = sizeof(int), 4142 .value_size = 4, 4143 .key_type_id = 1, 4144 .value_type_id = 1, 4145 .max_entries = 1, 4146 .btf_load_err = true, 4147 .err_str = "Type tags don't precede modifiers", 4148 }, 4149 { 4150 .descr = "type_tag test #4, type tag order", 4151 .raw_types = { 4152 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4153 BTF_TYPEDEF_ENC(NAME_TBD, 3), /* [2] */ 4154 BTF_CONST_ENC(4), /* [3] */ 4155 BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [4] */ 4156 BTF_END_RAW, 4157 }, 4158 BTF_STR_SEC("\0tag\0tag"), 4159 .map_type = BPF_MAP_TYPE_ARRAY, 4160 .map_name = "tag_type_check_btf", 4161 .key_size = sizeof(int), 4162 .value_size = 4, 4163 .key_type_id = 1, 4164 .value_type_id = 1, 4165 .max_entries = 1, 4166 .btf_load_err = true, 4167 .err_str = "Type tags don't precede modifiers", 4168 }, 4169 { 4170 .descr = "type_tag test #5, type tag order", 4171 .raw_types = { 4172 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4173 BTF_TYPE_TAG_ENC(NAME_TBD, 3), /* [2] */ 4174 BTF_CONST_ENC(1), /* [3] */ 4175 BTF_TYPE_TAG_ENC(NAME_TBD, 2), /* [4] */ 4176 BTF_END_RAW, 4177 }, 4178 BTF_STR_SEC("\0tag\0tag"), 4179 .map_type = BPF_MAP_TYPE_ARRAY, 4180 .map_name = "tag_type_check_btf", 4181 .key_size = sizeof(int), 4182 .value_size = 4, 4183 .key_type_id = 1, 4184 .value_type_id = 1, 4185 .max_entries = 1, 4186 }, 4187 { 4188 .descr = "type_tag test #6, type tag order", 4189 .raw_types = { 4190 BTF_PTR_ENC(2), /* [1] */ 4191 BTF_TYPE_TAG_ENC(NAME_TBD, 3), /* [2] */ 4192 BTF_CONST_ENC(4), /* [3] */ 4193 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [4] */ 4194 BTF_PTR_ENC(6), /* [5] */ 4195 BTF_CONST_ENC(2), /* [6] */ 4196 BTF_END_RAW, 4197 }, 4198 BTF_STR_SEC("\0tag"), 4199 .map_type = BPF_MAP_TYPE_ARRAY, 4200 .map_name = "tag_type_check_btf", 4201 .key_size = sizeof(int), 4202 .value_size = 4, 4203 .key_type_id = 1, 4204 .value_type_id = 1, 4205 .max_entries = 1, 4206 .btf_load_err = true, 4207 .err_str = "Type tags don't precede modifiers", 4208 }, 4209 { 4210 .descr = "enum64 test #1, unsigned, size 8", 4211 .raw_types = { 4212 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4213 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8), /* [2] */ 4214 BTF_ENUM64_ENC(NAME_TBD, 0, 0), 4215 BTF_ENUM64_ENC(NAME_TBD, 1, 1), 4216 BTF_END_RAW, 4217 }, 4218 BTF_STR_SEC("\0a\0b\0c"), 4219 .map_type = BPF_MAP_TYPE_ARRAY, 4220 .map_name = "tag_type_check_btf", 4221 .key_size = sizeof(int), 4222 .value_size = 8, 4223 .key_type_id = 1, 4224 .value_type_id = 2, 4225 .max_entries = 1, 4226 }, 4227 { 4228 .descr = "enum64 test #2, signed, size 4", 4229 .raw_types = { 4230 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4231 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 1, 2), 4), /* [2] */ 4232 BTF_ENUM64_ENC(NAME_TBD, -1, 0), 4233 BTF_ENUM64_ENC(NAME_TBD, 1, 0), 4234 BTF_END_RAW, 4235 }, 4236 BTF_STR_SEC("\0a\0b\0c"), 4237 .map_type = BPF_MAP_TYPE_ARRAY, 4238 .map_name = "tag_type_check_btf", 4239 .key_size = sizeof(int), 4240 .value_size = 4, 4241 .key_type_id = 1, 4242 .value_type_id = 2, 4243 .max_entries = 1, 4244 }, 4245 4246 }; /* struct btf_raw_test raw_tests[] */ 4247 4248 static const char *get_next_str(const char *start, const char *end) 4249 { 4250 return start < end - 1 ? start + 1 : NULL; 4251 } 4252 4253 static int get_raw_sec_size(const __u32 *raw_types) 4254 { 4255 int i; 4256 4257 for (i = MAX_NR_RAW_U32 - 1; 4258 i >= 0 && raw_types[i] != BTF_END_RAW; 4259 i--) 4260 ; 4261 4262 return i < 0 ? i : i * sizeof(raw_types[0]); 4263 } 4264 4265 static void *btf_raw_create(const struct btf_header *hdr, 4266 const __u32 *raw_types, 4267 const char *str, 4268 unsigned int str_sec_size, 4269 unsigned int *btf_size, 4270 const char **ret_next_str) 4271 { 4272 const char *next_str = str, *end_str = str + str_sec_size; 4273 const char **strs_idx = NULL, **tmp_strs_idx; 4274 int strs_cap = 0, strs_cnt = 0, next_str_idx = 0; 4275 unsigned int size_needed, offset; 4276 struct btf_header *ret_hdr; 4277 int i, type_sec_size, err = 0; 4278 uint32_t *ret_types; 4279 void *raw_btf = NULL; 4280 4281 type_sec_size = get_raw_sec_size(raw_types); 4282 if (CHECK(type_sec_size < 0, "Cannot get nr_raw_types")) 4283 return NULL; 4284 4285 size_needed = sizeof(*hdr) + type_sec_size + str_sec_size; 4286 raw_btf = malloc(size_needed); 4287 if (CHECK(!raw_btf, "Cannot allocate memory for raw_btf")) 4288 return NULL; 4289 4290 /* Copy header */ 4291 memcpy(raw_btf, hdr, sizeof(*hdr)); 4292 offset = sizeof(*hdr); 4293 4294 /* Index strings */ 4295 while ((next_str = get_next_str(next_str, end_str))) { 4296 if (strs_cnt == strs_cap) { 4297 strs_cap += max(16, strs_cap / 2); 4298 tmp_strs_idx = realloc(strs_idx, 4299 sizeof(*strs_idx) * strs_cap); 4300 if (CHECK(!tmp_strs_idx, 4301 "Cannot allocate memory for strs_idx")) { 4302 err = -1; 4303 goto done; 4304 } 4305 strs_idx = tmp_strs_idx; 4306 } 4307 strs_idx[strs_cnt++] = next_str; 4308 next_str += strlen(next_str); 4309 } 4310 4311 /* Copy type section */ 4312 ret_types = raw_btf + offset; 4313 for (i = 0; i < type_sec_size / sizeof(raw_types[0]); i++) { 4314 if (raw_types[i] == NAME_TBD) { 4315 if (CHECK(next_str_idx == strs_cnt, 4316 "Error in getting next_str #%d", 4317 next_str_idx)) { 4318 err = -1; 4319 goto done; 4320 } 4321 ret_types[i] = strs_idx[next_str_idx++] - str; 4322 } else if (IS_NAME_NTH(raw_types[i])) { 4323 int idx = GET_NAME_NTH_IDX(raw_types[i]); 4324 4325 if (CHECK(idx <= 0 || idx > strs_cnt, 4326 "Error getting string #%d, strs_cnt:%d", 4327 idx, strs_cnt)) { 4328 err = -1; 4329 goto done; 4330 } 4331 ret_types[i] = strs_idx[idx-1] - str; 4332 } else { 4333 ret_types[i] = raw_types[i]; 4334 } 4335 } 4336 offset += type_sec_size; 4337 4338 /* Copy string section */ 4339 memcpy(raw_btf + offset, str, str_sec_size); 4340 4341 ret_hdr = (struct btf_header *)raw_btf; 4342 ret_hdr->type_len = type_sec_size; 4343 ret_hdr->str_off = type_sec_size; 4344 ret_hdr->str_len = str_sec_size; 4345 4346 *btf_size = size_needed; 4347 if (ret_next_str) 4348 *ret_next_str = 4349 next_str_idx < strs_cnt ? strs_idx[next_str_idx] : NULL; 4350 4351 done: 4352 free(strs_idx); 4353 if (err) { 4354 free(raw_btf); 4355 return NULL; 4356 } 4357 return raw_btf; 4358 } 4359 4360 static int load_raw_btf(const void *raw_data, size_t raw_size) 4361 { 4362 LIBBPF_OPTS(bpf_btf_load_opts, opts); 4363 int btf_fd; 4364 4365 if (always_log) { 4366 opts.log_buf = btf_log_buf, 4367 opts.log_size = BTF_LOG_BUF_SIZE, 4368 opts.log_level = 1; 4369 } 4370 4371 btf_fd = bpf_btf_load(raw_data, raw_size, &opts); 4372 if (btf_fd < 0 && !always_log) { 4373 opts.log_buf = btf_log_buf, 4374 opts.log_size = BTF_LOG_BUF_SIZE, 4375 opts.log_level = 1; 4376 btf_fd = bpf_btf_load(raw_data, raw_size, &opts); 4377 } 4378 4379 return btf_fd; 4380 } 4381 4382 static void do_test_raw(unsigned int test_num) 4383 { 4384 struct btf_raw_test *test = &raw_tests[test_num - 1]; 4385 LIBBPF_OPTS(bpf_map_create_opts, opts); 4386 int map_fd = -1, btf_fd = -1; 4387 unsigned int raw_btf_size; 4388 struct btf_header *hdr; 4389 void *raw_btf; 4390 int err; 4391 4392 if (!test__start_subtest(test->descr)) 4393 return; 4394 4395 raw_btf = btf_raw_create(&hdr_tmpl, 4396 test->raw_types, 4397 test->str_sec, 4398 test->str_sec_size, 4399 &raw_btf_size, NULL); 4400 if (!raw_btf) 4401 return; 4402 4403 hdr = raw_btf; 4404 4405 hdr->hdr_len = (int)hdr->hdr_len + test->hdr_len_delta; 4406 hdr->type_off = (int)hdr->type_off + test->type_off_delta; 4407 hdr->str_off = (int)hdr->str_off + test->str_off_delta; 4408 hdr->str_len = (int)hdr->str_len + test->str_len_delta; 4409 4410 *btf_log_buf = '\0'; 4411 btf_fd = load_raw_btf(raw_btf, raw_btf_size); 4412 free(raw_btf); 4413 4414 err = ((btf_fd < 0) != test->btf_load_err); 4415 if (CHECK(err, "btf_fd:%d test->btf_load_err:%u", 4416 btf_fd, test->btf_load_err) || 4417 CHECK(test->err_str && !strstr(btf_log_buf, test->err_str), 4418 "expected err_str:%s\n", test->err_str)) { 4419 err = -1; 4420 goto done; 4421 } 4422 4423 if (err || btf_fd < 0) 4424 goto done; 4425 4426 if (!test->map_type) 4427 goto done; 4428 4429 opts.btf_fd = btf_fd; 4430 opts.btf_key_type_id = test->key_type_id; 4431 opts.btf_value_type_id = test->value_type_id; 4432 map_fd = bpf_map_create(test->map_type, test->map_name, 4433 test->key_size, test->value_size, test->max_entries, &opts); 4434 4435 err = ((map_fd < 0) != test->map_create_err); 4436 CHECK(err, "map_fd:%d test->map_create_err:%u", 4437 map_fd, test->map_create_err); 4438 4439 done: 4440 if (*btf_log_buf && (err || always_log)) 4441 fprintf(stderr, "\n%s", btf_log_buf); 4442 if (btf_fd >= 0) 4443 close(btf_fd); 4444 if (map_fd >= 0) 4445 close(map_fd); 4446 } 4447 4448 struct btf_get_info_test { 4449 const char *descr; 4450 const char *str_sec; 4451 __u32 raw_types[MAX_NR_RAW_U32]; 4452 __u32 str_sec_size; 4453 int btf_size_delta; 4454 int (*special_test)(unsigned int test_num); 4455 }; 4456 4457 static int test_big_btf_info(unsigned int test_num); 4458 static int test_btf_id(unsigned int test_num); 4459 4460 const struct btf_get_info_test get_info_tests[] = { 4461 { 4462 .descr = "== raw_btf_size+1", 4463 .raw_types = { 4464 /* int */ /* [1] */ 4465 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 4466 BTF_END_RAW, 4467 }, 4468 .str_sec = "", 4469 .str_sec_size = sizeof(""), 4470 .btf_size_delta = 1, 4471 }, 4472 { 4473 .descr = "== raw_btf_size-3", 4474 .raw_types = { 4475 /* int */ /* [1] */ 4476 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 4477 BTF_END_RAW, 4478 }, 4479 .str_sec = "", 4480 .str_sec_size = sizeof(""), 4481 .btf_size_delta = -3, 4482 }, 4483 { 4484 .descr = "Large bpf_btf_info", 4485 .raw_types = { 4486 /* int */ /* [1] */ 4487 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 4488 BTF_END_RAW, 4489 }, 4490 .str_sec = "", 4491 .str_sec_size = sizeof(""), 4492 .special_test = test_big_btf_info, 4493 }, 4494 { 4495 .descr = "BTF ID", 4496 .raw_types = { 4497 /* int */ /* [1] */ 4498 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 4499 /* unsigned int */ /* [2] */ 4500 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), 4501 BTF_END_RAW, 4502 }, 4503 .str_sec = "", 4504 .str_sec_size = sizeof(""), 4505 .special_test = test_btf_id, 4506 }, 4507 }; 4508 4509 static int test_big_btf_info(unsigned int test_num) 4510 { 4511 const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; 4512 uint8_t *raw_btf = NULL, *user_btf = NULL; 4513 unsigned int raw_btf_size; 4514 struct { 4515 struct bpf_btf_info info; 4516 uint64_t garbage; 4517 } info_garbage; 4518 struct bpf_btf_info *info; 4519 int btf_fd = -1, err; 4520 uint32_t info_len; 4521 4522 raw_btf = btf_raw_create(&hdr_tmpl, 4523 test->raw_types, 4524 test->str_sec, 4525 test->str_sec_size, 4526 &raw_btf_size, NULL); 4527 4528 if (!raw_btf) 4529 return -1; 4530 4531 *btf_log_buf = '\0'; 4532 4533 user_btf = malloc(raw_btf_size); 4534 if (CHECK(!user_btf, "!user_btf")) { 4535 err = -1; 4536 goto done; 4537 } 4538 4539 btf_fd = load_raw_btf(raw_btf, raw_btf_size); 4540 if (CHECK(btf_fd < 0, "errno:%d", errno)) { 4541 err = -1; 4542 goto done; 4543 } 4544 4545 /* 4546 * GET_INFO should error out if the userspace info 4547 * has non zero tailing bytes. 4548 */ 4549 info = &info_garbage.info; 4550 memset(info, 0, sizeof(*info)); 4551 info_garbage.garbage = 0xdeadbeef; 4552 info_len = sizeof(info_garbage); 4553 info->btf = ptr_to_u64(user_btf); 4554 info->btf_size = raw_btf_size; 4555 4556 err = bpf_btf_get_info_by_fd(btf_fd, info, &info_len); 4557 if (CHECK(!err, "!err")) { 4558 err = -1; 4559 goto done; 4560 } 4561 4562 /* 4563 * GET_INFO should succeed even info_len is larger than 4564 * the kernel supported as long as tailing bytes are zero. 4565 * The kernel supported info len should also be returned 4566 * to userspace. 4567 */ 4568 info_garbage.garbage = 0; 4569 err = bpf_btf_get_info_by_fd(btf_fd, info, &info_len); 4570 if (CHECK(err || info_len != sizeof(*info), 4571 "err:%d errno:%d info_len:%u sizeof(*info):%zu", 4572 err, errno, info_len, sizeof(*info))) { 4573 err = -1; 4574 goto done; 4575 } 4576 4577 fprintf(stderr, "OK"); 4578 4579 done: 4580 if (*btf_log_buf && (err || always_log)) 4581 fprintf(stderr, "\n%s", btf_log_buf); 4582 4583 free(raw_btf); 4584 free(user_btf); 4585 4586 if (btf_fd >= 0) 4587 close(btf_fd); 4588 4589 return err; 4590 } 4591 4592 static int test_btf_id(unsigned int test_num) 4593 { 4594 const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; 4595 LIBBPF_OPTS(bpf_map_create_opts, opts); 4596 uint8_t *raw_btf = NULL, *user_btf[2] = {}; 4597 int btf_fd[2] = {-1, -1}, map_fd = -1; 4598 struct bpf_map_info map_info = {}; 4599 struct bpf_btf_info info[2] = {}; 4600 unsigned int raw_btf_size; 4601 uint32_t info_len; 4602 int err, i, ret; 4603 4604 raw_btf = btf_raw_create(&hdr_tmpl, 4605 test->raw_types, 4606 test->str_sec, 4607 test->str_sec_size, 4608 &raw_btf_size, NULL); 4609 4610 if (!raw_btf) 4611 return -1; 4612 4613 *btf_log_buf = '\0'; 4614 4615 for (i = 0; i < 2; i++) { 4616 user_btf[i] = malloc(raw_btf_size); 4617 if (CHECK(!user_btf[i], "!user_btf[%d]", i)) { 4618 err = -1; 4619 goto done; 4620 } 4621 info[i].btf = ptr_to_u64(user_btf[i]); 4622 info[i].btf_size = raw_btf_size; 4623 } 4624 4625 btf_fd[0] = load_raw_btf(raw_btf, raw_btf_size); 4626 if (CHECK(btf_fd[0] < 0, "errno:%d", errno)) { 4627 err = -1; 4628 goto done; 4629 } 4630 4631 /* Test BPF_OBJ_GET_INFO_BY_ID on btf_id */ 4632 info_len = sizeof(info[0]); 4633 err = bpf_btf_get_info_by_fd(btf_fd[0], &info[0], &info_len); 4634 if (CHECK(err, "errno:%d", errno)) { 4635 err = -1; 4636 goto done; 4637 } 4638 4639 btf_fd[1] = bpf_btf_get_fd_by_id(info[0].id); 4640 if (CHECK(btf_fd[1] < 0, "errno:%d", errno)) { 4641 err = -1; 4642 goto done; 4643 } 4644 4645 ret = 0; 4646 err = bpf_btf_get_info_by_fd(btf_fd[1], &info[1], &info_len); 4647 if (CHECK(err || info[0].id != info[1].id || 4648 info[0].btf_size != info[1].btf_size || 4649 (ret = memcmp(user_btf[0], user_btf[1], info[0].btf_size)), 4650 "err:%d errno:%d id0:%u id1:%u btf_size0:%u btf_size1:%u memcmp:%d", 4651 err, errno, info[0].id, info[1].id, 4652 info[0].btf_size, info[1].btf_size, ret)) { 4653 err = -1; 4654 goto done; 4655 } 4656 4657 /* Test btf members in struct bpf_map_info */ 4658 opts.btf_fd = btf_fd[0]; 4659 opts.btf_key_type_id = 1; 4660 opts.btf_value_type_id = 2; 4661 map_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "test_btf_id", 4662 sizeof(int), sizeof(int), 4, &opts); 4663 if (CHECK(map_fd < 0, "errno:%d", errno)) { 4664 err = -1; 4665 goto done; 4666 } 4667 4668 info_len = sizeof(map_info); 4669 err = bpf_map_get_info_by_fd(map_fd, &map_info, &info_len); 4670 if (CHECK(err || map_info.btf_id != info[0].id || 4671 map_info.btf_key_type_id != 1 || map_info.btf_value_type_id != 2, 4672 "err:%d errno:%d info.id:%u btf_id:%u btf_key_type_id:%u btf_value_type_id:%u", 4673 err, errno, info[0].id, map_info.btf_id, map_info.btf_key_type_id, 4674 map_info.btf_value_type_id)) { 4675 err = -1; 4676 goto done; 4677 } 4678 4679 for (i = 0; i < 2; i++) { 4680 close(btf_fd[i]); 4681 btf_fd[i] = -1; 4682 } 4683 4684 /* Test BTF ID is removed from the kernel */ 4685 btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id); 4686 if (CHECK(btf_fd[0] < 0, "errno:%d", errno)) { 4687 err = -1; 4688 goto done; 4689 } 4690 close(btf_fd[0]); 4691 btf_fd[0] = -1; 4692 4693 /* The map holds the last ref to BTF and its btf_id */ 4694 close(map_fd); 4695 map_fd = -1; 4696 4697 fprintf(stderr, "OK"); 4698 4699 done: 4700 if (*btf_log_buf && (err || always_log)) 4701 fprintf(stderr, "\n%s", btf_log_buf); 4702 4703 free(raw_btf); 4704 if (map_fd >= 0) 4705 close(map_fd); 4706 for (i = 0; i < 2; i++) { 4707 free(user_btf[i]); 4708 if (btf_fd[i] >= 0) 4709 close(btf_fd[i]); 4710 } 4711 4712 return err; 4713 } 4714 4715 static void do_test_get_info(unsigned int test_num) 4716 { 4717 const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; 4718 unsigned int raw_btf_size, user_btf_size, expected_nbytes; 4719 uint8_t *raw_btf = NULL, *user_btf = NULL; 4720 struct bpf_btf_info info = {}; 4721 int btf_fd = -1, err, ret; 4722 uint32_t info_len; 4723 4724 if (!test__start_subtest(test->descr)) 4725 return; 4726 4727 if (test->special_test) { 4728 err = test->special_test(test_num); 4729 if (CHECK(err, "failed: %d\n", err)) 4730 return; 4731 } 4732 4733 raw_btf = btf_raw_create(&hdr_tmpl, 4734 test->raw_types, 4735 test->str_sec, 4736 test->str_sec_size, 4737 &raw_btf_size, NULL); 4738 4739 if (!raw_btf) 4740 return; 4741 4742 *btf_log_buf = '\0'; 4743 4744 user_btf = malloc(raw_btf_size); 4745 if (CHECK(!user_btf, "!user_btf")) { 4746 err = -1; 4747 goto done; 4748 } 4749 4750 btf_fd = load_raw_btf(raw_btf, raw_btf_size); 4751 if (CHECK(btf_fd <= 0, "errno:%d", errno)) { 4752 err = -1; 4753 goto done; 4754 } 4755 4756 user_btf_size = (int)raw_btf_size + test->btf_size_delta; 4757 expected_nbytes = min(raw_btf_size, user_btf_size); 4758 if (raw_btf_size > expected_nbytes) 4759 memset(user_btf + expected_nbytes, 0xff, 4760 raw_btf_size - expected_nbytes); 4761 4762 info_len = sizeof(info); 4763 info.btf = ptr_to_u64(user_btf); 4764 info.btf_size = user_btf_size; 4765 4766 ret = 0; 4767 err = bpf_btf_get_info_by_fd(btf_fd, &info, &info_len); 4768 if (CHECK(err || !info.id || info_len != sizeof(info) || 4769 info.btf_size != raw_btf_size || 4770 (ret = memcmp(raw_btf, user_btf, expected_nbytes)), 4771 "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", 4772 err, errno, info.id, info_len, sizeof(info), 4773 raw_btf_size, info.btf_size, expected_nbytes, ret)) { 4774 err = -1; 4775 goto done; 4776 } 4777 4778 while (expected_nbytes < raw_btf_size) { 4779 fprintf(stderr, "%u...", expected_nbytes); 4780 if (CHECK(user_btf[expected_nbytes++] != 0xff, 4781 "user_btf[%u]:%x != 0xff", expected_nbytes - 1, 4782 user_btf[expected_nbytes - 1])) { 4783 err = -1; 4784 goto done; 4785 } 4786 } 4787 4788 fprintf(stderr, "OK"); 4789 4790 done: 4791 if (*btf_log_buf && (err || always_log)) 4792 fprintf(stderr, "\n%s", btf_log_buf); 4793 4794 free(raw_btf); 4795 free(user_btf); 4796 4797 if (btf_fd >= 0) 4798 close(btf_fd); 4799 } 4800 4801 struct btf_file_test { 4802 const char *file; 4803 bool btf_kv_notfound; 4804 }; 4805 4806 static struct btf_file_test file_tests[] = { 4807 { .file = "test_btf_newkv.bpf.o", }, 4808 { .file = "test_btf_nokv.bpf.o", .btf_kv_notfound = true, }, 4809 }; 4810 4811 static void do_test_file(unsigned int test_num) 4812 { 4813 const struct btf_file_test *test = &file_tests[test_num - 1]; 4814 const char *expected_fnames[] = {"_dummy_tracepoint", 4815 "test_long_fname_1", 4816 "test_long_fname_2"}; 4817 struct btf_ext *btf_ext = NULL; 4818 struct bpf_prog_info info = {}; 4819 struct bpf_object *obj = NULL; 4820 struct bpf_func_info *finfo; 4821 struct bpf_program *prog; 4822 __u32 info_len, rec_size; 4823 bool has_btf_ext = false; 4824 struct btf *btf = NULL; 4825 void *func_info = NULL; 4826 struct bpf_map *map; 4827 int i, err, prog_fd; 4828 4829 if (!test__start_subtest(test->file)) 4830 return; 4831 4832 btf = btf__parse_elf(test->file, &btf_ext); 4833 err = libbpf_get_error(btf); 4834 if (err) { 4835 if (err == -ENOENT) { 4836 printf("%s:SKIP: No ELF %s found", __func__, BTF_ELF_SEC); 4837 test__skip(); 4838 return; 4839 } 4840 return; 4841 } 4842 btf__free(btf); 4843 4844 has_btf_ext = btf_ext != NULL; 4845 btf_ext__free(btf_ext); 4846 4847 /* temporary disable LIBBPF_STRICT_MAP_DEFINITIONS to test legacy maps */ 4848 libbpf_set_strict_mode(LIBBPF_STRICT_ALL & ~LIBBPF_STRICT_MAP_DEFINITIONS); 4849 obj = bpf_object__open(test->file); 4850 err = libbpf_get_error(obj); 4851 if (CHECK(err, "obj: %d", err)) 4852 return; 4853 4854 prog = bpf_object__next_program(obj, NULL); 4855 if (CHECK(!prog, "Cannot find bpf_prog")) { 4856 err = -1; 4857 goto done; 4858 } 4859 4860 bpf_program__set_type(prog, BPF_PROG_TYPE_TRACEPOINT); 4861 err = bpf_object__load(obj); 4862 if (CHECK(err < 0, "bpf_object__load: %d", err)) 4863 goto done; 4864 prog_fd = bpf_program__fd(prog); 4865 4866 map = bpf_object__find_map_by_name(obj, "btf_map"); 4867 if (CHECK(!map, "btf_map not found")) { 4868 err = -1; 4869 goto done; 4870 } 4871 4872 err = (bpf_map__btf_key_type_id(map) == 0 || bpf_map__btf_value_type_id(map) == 0) 4873 != test->btf_kv_notfound; 4874 if (CHECK(err, "btf_key_type_id:%u btf_value_type_id:%u test->btf_kv_notfound:%u", 4875 bpf_map__btf_key_type_id(map), bpf_map__btf_value_type_id(map), 4876 test->btf_kv_notfound)) 4877 goto done; 4878 4879 if (!has_btf_ext) 4880 goto skip; 4881 4882 /* get necessary program info */ 4883 info_len = sizeof(struct bpf_prog_info); 4884 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len); 4885 4886 if (CHECK(err < 0, "invalid get info (1st) errno:%d", errno)) { 4887 fprintf(stderr, "%s\n", btf_log_buf); 4888 err = -1; 4889 goto done; 4890 } 4891 if (CHECK(info.nr_func_info != 3, 4892 "incorrect info.nr_func_info (1st) %d", 4893 info.nr_func_info)) { 4894 err = -1; 4895 goto done; 4896 } 4897 rec_size = info.func_info_rec_size; 4898 if (CHECK(rec_size != sizeof(struct bpf_func_info), 4899 "incorrect info.func_info_rec_size (1st) %d\n", rec_size)) { 4900 err = -1; 4901 goto done; 4902 } 4903 4904 func_info = malloc(info.nr_func_info * rec_size); 4905 if (CHECK(!func_info, "out of memory")) { 4906 err = -1; 4907 goto done; 4908 } 4909 4910 /* reset info to only retrieve func_info related data */ 4911 memset(&info, 0, sizeof(info)); 4912 info.nr_func_info = 3; 4913 info.func_info_rec_size = rec_size; 4914 info.func_info = ptr_to_u64(func_info); 4915 4916 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len); 4917 4918 if (CHECK(err < 0, "invalid get info (2nd) errno:%d", errno)) { 4919 fprintf(stderr, "%s\n", btf_log_buf); 4920 err = -1; 4921 goto done; 4922 } 4923 if (CHECK(info.nr_func_info != 3, 4924 "incorrect info.nr_func_info (2nd) %d", 4925 info.nr_func_info)) { 4926 err = -1; 4927 goto done; 4928 } 4929 if (CHECK(info.func_info_rec_size != rec_size, 4930 "incorrect info.func_info_rec_size (2nd) %d", 4931 info.func_info_rec_size)) { 4932 err = -1; 4933 goto done; 4934 } 4935 4936 btf = btf__load_from_kernel_by_id(info.btf_id); 4937 err = libbpf_get_error(btf); 4938 if (CHECK(err, "cannot get btf from kernel, err: %d", err)) 4939 goto done; 4940 4941 /* check three functions */ 4942 finfo = func_info; 4943 for (i = 0; i < 3; i++) { 4944 const struct btf_type *t; 4945 const char *fname; 4946 4947 t = btf__type_by_id(btf, finfo->type_id); 4948 if (CHECK(!t, "btf__type_by_id failure: id %u", 4949 finfo->type_id)) { 4950 err = -1; 4951 goto done; 4952 } 4953 4954 fname = btf__name_by_offset(btf, t->name_off); 4955 err = strcmp(fname, expected_fnames[i]); 4956 /* for the second and third functions in .text section, 4957 * the compiler may order them either way. 4958 */ 4959 if (i && err) 4960 err = strcmp(fname, expected_fnames[3 - i]); 4961 if (CHECK(err, "incorrect fname %s", fname ? : "")) { 4962 err = -1; 4963 goto done; 4964 } 4965 4966 finfo = (void *)finfo + rec_size; 4967 } 4968 4969 skip: 4970 fprintf(stderr, "OK"); 4971 4972 done: 4973 libbpf_set_strict_mode(LIBBPF_STRICT_ALL); 4974 4975 btf__free(btf); 4976 free(func_info); 4977 bpf_object__close(obj); 4978 } 4979 4980 const char *pprint_enum_str[] = { 4981 "ENUM_ZERO", 4982 "ENUM_ONE", 4983 "ENUM_TWO", 4984 "ENUM_THREE", 4985 }; 4986 4987 struct pprint_mapv { 4988 uint32_t ui32; 4989 uint16_t ui16; 4990 /* 2 bytes hole */ 4991 int32_t si32; 4992 uint32_t unused_bits2a:2, 4993 bits28:28, 4994 unused_bits2b:2; 4995 union { 4996 uint64_t ui64; 4997 uint8_t ui8a[8]; 4998 }; 4999 enum { 5000 ENUM_ZERO, 5001 ENUM_ONE, 5002 ENUM_TWO, 5003 ENUM_THREE, 5004 } aenum; 5005 uint32_t ui32b; 5006 uint32_t bits2c:2; 5007 uint8_t si8_4[2][2]; 5008 }; 5009 5010 #ifdef __SIZEOF_INT128__ 5011 struct pprint_mapv_int128 { 5012 __int128 si128a; 5013 __int128 si128b; 5014 unsigned __int128 bits3:3; 5015 unsigned __int128 bits80:80; 5016 unsigned __int128 ui128; 5017 }; 5018 #endif 5019 5020 static struct btf_raw_test pprint_test_template[] = { 5021 { 5022 .raw_types = { 5023 /* unsigned char */ /* [1] */ 5024 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), 5025 /* unsigned short */ /* [2] */ 5026 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), 5027 /* unsigned int */ /* [3] */ 5028 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), 5029 /* int */ /* [4] */ 5030 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 5031 /* unsigned long long */ /* [5] */ 5032 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), 5033 /* 2 bits */ /* [6] */ 5034 BTF_TYPE_INT_ENC(0, 0, 0, 2, 2), 5035 /* 28 bits */ /* [7] */ 5036 BTF_TYPE_INT_ENC(0, 0, 0, 28, 4), 5037 /* uint8_t[8] */ /* [8] */ 5038 BTF_TYPE_ARRAY_ENC(9, 1, 8), 5039 /* typedef unsigned char uint8_t */ /* [9] */ 5040 BTF_TYPEDEF_ENC(NAME_TBD, 1), 5041 /* typedef unsigned short uint16_t */ /* [10] */ 5042 BTF_TYPEDEF_ENC(NAME_TBD, 2), 5043 /* typedef unsigned int uint32_t */ /* [11] */ 5044 BTF_TYPEDEF_ENC(NAME_TBD, 3), 5045 /* typedef int int32_t */ /* [12] */ 5046 BTF_TYPEDEF_ENC(NAME_TBD, 4), 5047 /* typedef unsigned long long uint64_t *//* [13] */ 5048 BTF_TYPEDEF_ENC(NAME_TBD, 5), 5049 /* union (anon) */ /* [14] */ 5050 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), 5051 BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ 5052 BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ 5053 /* enum (anon) */ /* [15] */ 5054 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), 5055 BTF_ENUM_ENC(NAME_TBD, 0), 5056 BTF_ENUM_ENC(NAME_TBD, 1), 5057 BTF_ENUM_ENC(NAME_TBD, 2), 5058 BTF_ENUM_ENC(NAME_TBD, 3), 5059 /* struct pprint_mapv */ /* [16] */ 5060 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 11), 40), 5061 BTF_MEMBER_ENC(NAME_TBD, 11, 0), /* uint32_t ui32 */ 5062 BTF_MEMBER_ENC(NAME_TBD, 10, 32), /* uint16_t ui16 */ 5063 BTF_MEMBER_ENC(NAME_TBD, 12, 64), /* int32_t si32 */ 5064 BTF_MEMBER_ENC(NAME_TBD, 6, 96), /* unused_bits2a */ 5065 BTF_MEMBER_ENC(NAME_TBD, 7, 98), /* bits28 */ 5066 BTF_MEMBER_ENC(NAME_TBD, 6, 126), /* unused_bits2b */ 5067 BTF_MEMBER_ENC(0, 14, 128), /* union (anon) */ 5068 BTF_MEMBER_ENC(NAME_TBD, 15, 192), /* aenum */ 5069 BTF_MEMBER_ENC(NAME_TBD, 11, 224), /* uint32_t ui32b */ 5070 BTF_MEMBER_ENC(NAME_TBD, 6, 256), /* bits2c */ 5071 BTF_MEMBER_ENC(NAME_TBD, 17, 264), /* si8_4 */ 5072 BTF_TYPE_ARRAY_ENC(18, 1, 2), /* [17] */ 5073 BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [18] */ 5074 BTF_END_RAW, 5075 }, 5076 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"), 5077 .key_size = sizeof(unsigned int), 5078 .value_size = sizeof(struct pprint_mapv), 5079 .key_type_id = 3, /* unsigned int */ 5080 .value_type_id = 16, /* struct pprint_mapv */ 5081 .max_entries = 128, 5082 }, 5083 5084 { 5085 /* this type will have the same type as the 5086 * first .raw_types definition, but struct type will 5087 * be encoded with kind_flag set. 5088 */ 5089 .raw_types = { 5090 /* unsigned char */ /* [1] */ 5091 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), 5092 /* unsigned short */ /* [2] */ 5093 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), 5094 /* unsigned int */ /* [3] */ 5095 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), 5096 /* int */ /* [4] */ 5097 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 5098 /* unsigned long long */ /* [5] */ 5099 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), 5100 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [6] */ 5101 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [7] */ 5102 /* uint8_t[8] */ /* [8] */ 5103 BTF_TYPE_ARRAY_ENC(9, 1, 8), 5104 /* typedef unsigned char uint8_t */ /* [9] */ 5105 BTF_TYPEDEF_ENC(NAME_TBD, 1), 5106 /* typedef unsigned short uint16_t */ /* [10] */ 5107 BTF_TYPEDEF_ENC(NAME_TBD, 2), 5108 /* typedef unsigned int uint32_t */ /* [11] */ 5109 BTF_TYPEDEF_ENC(NAME_TBD, 3), 5110 /* typedef int int32_t */ /* [12] */ 5111 BTF_TYPEDEF_ENC(NAME_TBD, 4), 5112 /* typedef unsigned long long uint64_t *//* [13] */ 5113 BTF_TYPEDEF_ENC(NAME_TBD, 5), 5114 /* union (anon) */ /* [14] */ 5115 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), 5116 BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ 5117 BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ 5118 /* enum (anon) */ /* [15] */ 5119 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), 5120 BTF_ENUM_ENC(NAME_TBD, 0), 5121 BTF_ENUM_ENC(NAME_TBD, 1), 5122 BTF_ENUM_ENC(NAME_TBD, 2), 5123 BTF_ENUM_ENC(NAME_TBD, 3), 5124 /* struct pprint_mapv */ /* [16] */ 5125 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 11), 40), 5126 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)), /* uint32_t ui32 */ 5127 BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)), /* uint16_t ui16 */ 5128 BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)), /* int32_t si32 */ 5129 BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 96)), /* unused_bits2a */ 5130 BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)), /* bits28 */ 5131 BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 126)), /* unused_bits2b */ 5132 BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)), /* union (anon) */ 5133 BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)), /* aenum */ 5134 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)), /* uint32_t ui32b */ 5135 BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 256)), /* bits2c */ 5136 BTF_MEMBER_ENC(NAME_TBD, 17, 264), /* si8_4 */ 5137 BTF_TYPE_ARRAY_ENC(18, 1, 2), /* [17] */ 5138 BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [18] */ 5139 BTF_END_RAW, 5140 }, 5141 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"), 5142 .key_size = sizeof(unsigned int), 5143 .value_size = sizeof(struct pprint_mapv), 5144 .key_type_id = 3, /* unsigned int */ 5145 .value_type_id = 16, /* struct pprint_mapv */ 5146 .max_entries = 128, 5147 }, 5148 5149 { 5150 /* this type will have the same layout as the 5151 * first .raw_types definition. The struct type will 5152 * be encoded with kind_flag set, bitfield members 5153 * are added typedef/const/volatile, and bitfield members 5154 * will have both int and enum types. 5155 */ 5156 .raw_types = { 5157 /* unsigned char */ /* [1] */ 5158 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), 5159 /* unsigned short */ /* [2] */ 5160 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), 5161 /* unsigned int */ /* [3] */ 5162 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), 5163 /* int */ /* [4] */ 5164 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 5165 /* unsigned long long */ /* [5] */ 5166 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), 5167 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [6] */ 5168 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [7] */ 5169 /* uint8_t[8] */ /* [8] */ 5170 BTF_TYPE_ARRAY_ENC(9, 1, 8), 5171 /* typedef unsigned char uint8_t */ /* [9] */ 5172 BTF_TYPEDEF_ENC(NAME_TBD, 1), 5173 /* typedef unsigned short uint16_t */ /* [10] */ 5174 BTF_TYPEDEF_ENC(NAME_TBD, 2), 5175 /* typedef unsigned int uint32_t */ /* [11] */ 5176 BTF_TYPEDEF_ENC(NAME_TBD, 3), 5177 /* typedef int int32_t */ /* [12] */ 5178 BTF_TYPEDEF_ENC(NAME_TBD, 4), 5179 /* typedef unsigned long long uint64_t *//* [13] */ 5180 BTF_TYPEDEF_ENC(NAME_TBD, 5), 5181 /* union (anon) */ /* [14] */ 5182 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), 5183 BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ 5184 BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ 5185 /* enum (anon) */ /* [15] */ 5186 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), 5187 BTF_ENUM_ENC(NAME_TBD, 0), 5188 BTF_ENUM_ENC(NAME_TBD, 1), 5189 BTF_ENUM_ENC(NAME_TBD, 2), 5190 BTF_ENUM_ENC(NAME_TBD, 3), 5191 /* struct pprint_mapv */ /* [16] */ 5192 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 11), 40), 5193 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)), /* uint32_t ui32 */ 5194 BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)), /* uint16_t ui16 */ 5195 BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)), /* int32_t si32 */ 5196 BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 96)), /* unused_bits2a */ 5197 BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)), /* bits28 */ 5198 BTF_MEMBER_ENC(NAME_TBD, 19, BTF_MEMBER_OFFSET(2, 126)),/* unused_bits2b */ 5199 BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)), /* union (anon) */ 5200 BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)), /* aenum */ 5201 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)), /* uint32_t ui32b */ 5202 BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 256)), /* bits2c */ 5203 BTF_MEMBER_ENC(NAME_TBD, 20, BTF_MEMBER_OFFSET(0, 264)), /* si8_4 */ 5204 /* typedef unsigned int ___int */ /* [17] */ 5205 BTF_TYPEDEF_ENC(NAME_TBD, 18), 5206 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), 6), /* [18] */ 5207 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 15), /* [19] */ 5208 BTF_TYPE_ARRAY_ENC(21, 1, 2), /* [20] */ 5209 BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [21] */ 5210 BTF_END_RAW, 5211 }, 5212 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"), 5213 .key_size = sizeof(unsigned int), 5214 .value_size = sizeof(struct pprint_mapv), 5215 .key_type_id = 3, /* unsigned int */ 5216 .value_type_id = 16, /* struct pprint_mapv */ 5217 .max_entries = 128, 5218 }, 5219 5220 #ifdef __SIZEOF_INT128__ 5221 { 5222 /* test int128 */ 5223 .raw_types = { 5224 /* unsigned int */ /* [1] */ 5225 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), 5226 /* __int128 */ /* [2] */ 5227 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 128, 16), 5228 /* unsigned __int128 */ /* [3] */ 5229 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 128, 16), 5230 /* struct pprint_mapv_int128 */ /* [4] */ 5231 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 5), 64), 5232 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), /* si128a */ 5233 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 128)), /* si128b */ 5234 BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(3, 256)), /* bits3 */ 5235 BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(80, 259)), /* bits80 */ 5236 BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(0, 384)), /* ui128 */ 5237 BTF_END_RAW, 5238 }, 5239 BTF_STR_SEC("\0unsigned int\0__int128\0unsigned __int128\0pprint_mapv_int128\0si128a\0si128b\0bits3\0bits80\0ui128"), 5240 .key_size = sizeof(unsigned int), 5241 .value_size = sizeof(struct pprint_mapv_int128), 5242 .key_type_id = 1, 5243 .value_type_id = 4, 5244 .max_entries = 128, 5245 .mapv_kind = PPRINT_MAPV_KIND_INT128, 5246 }, 5247 #endif 5248 5249 }; 5250 5251 static struct btf_pprint_test_meta { 5252 const char *descr; 5253 enum bpf_map_type map_type; 5254 const char *map_name; 5255 bool ordered_map; 5256 bool lossless_map; 5257 bool percpu_map; 5258 } pprint_tests_meta[] = { 5259 { 5260 .descr = "BTF pretty print array", 5261 .map_type = BPF_MAP_TYPE_ARRAY, 5262 .map_name = "pprint_test_array", 5263 .ordered_map = true, 5264 .lossless_map = true, 5265 .percpu_map = false, 5266 }, 5267 5268 { 5269 .descr = "BTF pretty print hash", 5270 .map_type = BPF_MAP_TYPE_HASH, 5271 .map_name = "pprint_test_hash", 5272 .ordered_map = false, 5273 .lossless_map = true, 5274 .percpu_map = false, 5275 }, 5276 5277 { 5278 .descr = "BTF pretty print lru hash", 5279 .map_type = BPF_MAP_TYPE_LRU_HASH, 5280 .map_name = "pprint_test_lru_hash", 5281 .ordered_map = false, 5282 .lossless_map = false, 5283 .percpu_map = false, 5284 }, 5285 5286 { 5287 .descr = "BTF pretty print percpu array", 5288 .map_type = BPF_MAP_TYPE_PERCPU_ARRAY, 5289 .map_name = "pprint_test_percpu_array", 5290 .ordered_map = true, 5291 .lossless_map = true, 5292 .percpu_map = true, 5293 }, 5294 5295 { 5296 .descr = "BTF pretty print percpu hash", 5297 .map_type = BPF_MAP_TYPE_PERCPU_HASH, 5298 .map_name = "pprint_test_percpu_hash", 5299 .ordered_map = false, 5300 .lossless_map = true, 5301 .percpu_map = true, 5302 }, 5303 5304 { 5305 .descr = "BTF pretty print lru percpu hash", 5306 .map_type = BPF_MAP_TYPE_LRU_PERCPU_HASH, 5307 .map_name = "pprint_test_lru_percpu_hash", 5308 .ordered_map = false, 5309 .lossless_map = false, 5310 .percpu_map = true, 5311 }, 5312 5313 }; 5314 5315 static size_t get_pprint_mapv_size(enum pprint_mapv_kind_t mapv_kind) 5316 { 5317 if (mapv_kind == PPRINT_MAPV_KIND_BASIC) 5318 return sizeof(struct pprint_mapv); 5319 5320 #ifdef __SIZEOF_INT128__ 5321 if (mapv_kind == PPRINT_MAPV_KIND_INT128) 5322 return sizeof(struct pprint_mapv_int128); 5323 #endif 5324 5325 assert(0); 5326 return 0; 5327 } 5328 5329 static void set_pprint_mapv(enum pprint_mapv_kind_t mapv_kind, 5330 void *mapv, uint32_t i, 5331 int num_cpus, int rounded_value_size) 5332 { 5333 int cpu; 5334 5335 if (mapv_kind == PPRINT_MAPV_KIND_BASIC) { 5336 struct pprint_mapv *v = mapv; 5337 5338 for (cpu = 0; cpu < num_cpus; cpu++) { 5339 v->ui32 = i + cpu; 5340 v->si32 = -i; 5341 v->unused_bits2a = 3; 5342 v->bits28 = i; 5343 v->unused_bits2b = 3; 5344 v->ui64 = i; 5345 v->aenum = i & 0x03; 5346 v->ui32b = 4; 5347 v->bits2c = 1; 5348 v->si8_4[0][0] = (cpu + i) & 0xff; 5349 v->si8_4[0][1] = (cpu + i + 1) & 0xff; 5350 v->si8_4[1][0] = (cpu + i + 2) & 0xff; 5351 v->si8_4[1][1] = (cpu + i + 3) & 0xff; 5352 v = (void *)v + rounded_value_size; 5353 } 5354 } 5355 5356 #ifdef __SIZEOF_INT128__ 5357 if (mapv_kind == PPRINT_MAPV_KIND_INT128) { 5358 struct pprint_mapv_int128 *v = mapv; 5359 5360 for (cpu = 0; cpu < num_cpus; cpu++) { 5361 v->si128a = i; 5362 v->si128b = -i; 5363 v->bits3 = i & 0x07; 5364 v->bits80 = (((unsigned __int128)1) << 64) + i; 5365 v->ui128 = (((unsigned __int128)2) << 64) + i; 5366 v = (void *)v + rounded_value_size; 5367 } 5368 } 5369 #endif 5370 } 5371 5372 ssize_t get_pprint_expected_line(enum pprint_mapv_kind_t mapv_kind, 5373 char *expected_line, ssize_t line_size, 5374 bool percpu_map, unsigned int next_key, 5375 int cpu, void *mapv) 5376 { 5377 ssize_t nexpected_line = -1; 5378 5379 if (mapv_kind == PPRINT_MAPV_KIND_BASIC) { 5380 struct pprint_mapv *v = mapv; 5381 5382 nexpected_line = snprintf(expected_line, line_size, 5383 "%s%u: {%u,0,%d,0x%x,0x%x,0x%x," 5384 "{%llu|[%u,%u,%u,%u,%u,%u,%u,%u]},%s," 5385 "%u,0x%x,[[%d,%d],[%d,%d]]}\n", 5386 percpu_map ? "\tcpu" : "", 5387 percpu_map ? cpu : next_key, 5388 v->ui32, v->si32, 5389 v->unused_bits2a, 5390 v->bits28, 5391 v->unused_bits2b, 5392 (__u64)v->ui64, 5393 v->ui8a[0], v->ui8a[1], 5394 v->ui8a[2], v->ui8a[3], 5395 v->ui8a[4], v->ui8a[5], 5396 v->ui8a[6], v->ui8a[7], 5397 pprint_enum_str[v->aenum], 5398 v->ui32b, 5399 v->bits2c, 5400 v->si8_4[0][0], v->si8_4[0][1], 5401 v->si8_4[1][0], v->si8_4[1][1]); 5402 } 5403 5404 #ifdef __SIZEOF_INT128__ 5405 if (mapv_kind == PPRINT_MAPV_KIND_INT128) { 5406 struct pprint_mapv_int128 *v = mapv; 5407 5408 nexpected_line = snprintf(expected_line, line_size, 5409 "%s%u: {0x%lx,0x%lx,0x%lx," 5410 "0x%lx%016lx,0x%lx%016lx}\n", 5411 percpu_map ? "\tcpu" : "", 5412 percpu_map ? cpu : next_key, 5413 (uint64_t)v->si128a, 5414 (uint64_t)v->si128b, 5415 (uint64_t)v->bits3, 5416 (uint64_t)(v->bits80 >> 64), 5417 (uint64_t)v->bits80, 5418 (uint64_t)(v->ui128 >> 64), 5419 (uint64_t)v->ui128); 5420 } 5421 #endif 5422 5423 return nexpected_line; 5424 } 5425 5426 static int check_line(const char *expected_line, int nexpected_line, 5427 int expected_line_len, const char *line) 5428 { 5429 if (CHECK(nexpected_line == expected_line_len, 5430 "expected_line is too long")) 5431 return -1; 5432 5433 if (strcmp(expected_line, line)) { 5434 fprintf(stderr, "unexpected pprint output\n"); 5435 fprintf(stderr, "expected: %s", expected_line); 5436 fprintf(stderr, " read: %s", line); 5437 return -1; 5438 } 5439 5440 return 0; 5441 } 5442 5443 5444 static void do_test_pprint(int test_num) 5445 { 5446 const struct btf_raw_test *test = &pprint_test_template[test_num]; 5447 enum pprint_mapv_kind_t mapv_kind = test->mapv_kind; 5448 LIBBPF_OPTS(bpf_map_create_opts, opts); 5449 bool ordered_map, lossless_map, percpu_map; 5450 int err, ret, num_cpus, rounded_value_size; 5451 unsigned int key, nr_read_elems; 5452 int map_fd = -1, btf_fd = -1; 5453 unsigned int raw_btf_size; 5454 char expected_line[255]; 5455 FILE *pin_file = NULL; 5456 char pin_path[255]; 5457 size_t line_len = 0; 5458 char *line = NULL; 5459 void *mapv = NULL; 5460 uint8_t *raw_btf; 5461 ssize_t nread; 5462 5463 if (!test__start_subtest(test->descr)) 5464 return; 5465 5466 raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, 5467 test->str_sec, test->str_sec_size, 5468 &raw_btf_size, NULL); 5469 5470 if (!raw_btf) 5471 return; 5472 5473 *btf_log_buf = '\0'; 5474 btf_fd = load_raw_btf(raw_btf, raw_btf_size); 5475 free(raw_btf); 5476 5477 if (CHECK(btf_fd < 0, "errno:%d\n", errno)) { 5478 err = -1; 5479 goto done; 5480 } 5481 5482 opts.btf_fd = btf_fd; 5483 opts.btf_key_type_id = test->key_type_id; 5484 opts.btf_value_type_id = test->value_type_id; 5485 map_fd = bpf_map_create(test->map_type, test->map_name, 5486 test->key_size, test->value_size, test->max_entries, &opts); 5487 if (CHECK(map_fd < 0, "errno:%d", errno)) { 5488 err = -1; 5489 goto done; 5490 } 5491 5492 ret = snprintf(pin_path, sizeof(pin_path), "%s/%s", 5493 "/sys/fs/bpf", test->map_name); 5494 5495 if (CHECK(ret >= sizeof(pin_path), "pin_path %s/%s is too long", 5496 "/sys/fs/bpf", test->map_name)) { 5497 err = -1; 5498 goto done; 5499 } 5500 5501 err = bpf_obj_pin(map_fd, pin_path); 5502 if (CHECK(err, "bpf_obj_pin(%s): errno:%d.", pin_path, errno)) 5503 goto done; 5504 5505 percpu_map = test->percpu_map; 5506 num_cpus = percpu_map ? bpf_num_possible_cpus() : 1; 5507 rounded_value_size = round_up(get_pprint_mapv_size(mapv_kind), 8); 5508 mapv = calloc(num_cpus, rounded_value_size); 5509 if (CHECK(!mapv, "mapv allocation failure")) { 5510 err = -1; 5511 goto done; 5512 } 5513 5514 for (key = 0; key < test->max_entries; key++) { 5515 set_pprint_mapv(mapv_kind, mapv, key, num_cpus, rounded_value_size); 5516 bpf_map_update_elem(map_fd, &key, mapv, 0); 5517 } 5518 5519 pin_file = fopen(pin_path, "r"); 5520 if (CHECK(!pin_file, "fopen(%s): errno:%d", pin_path, errno)) { 5521 err = -1; 5522 goto done; 5523 } 5524 5525 /* Skip lines start with '#' */ 5526 while ((nread = getline(&line, &line_len, pin_file)) > 0 && 5527 *line == '#') 5528 ; 5529 5530 if (CHECK(nread <= 0, "Unexpected EOF")) { 5531 err = -1; 5532 goto done; 5533 } 5534 5535 nr_read_elems = 0; 5536 ordered_map = test->ordered_map; 5537 lossless_map = test->lossless_map; 5538 do { 5539 ssize_t nexpected_line; 5540 unsigned int next_key; 5541 void *cmapv; 5542 int cpu; 5543 5544 next_key = ordered_map ? nr_read_elems : atoi(line); 5545 set_pprint_mapv(mapv_kind, mapv, next_key, num_cpus, rounded_value_size); 5546 cmapv = mapv; 5547 5548 for (cpu = 0; cpu < num_cpus; cpu++) { 5549 if (percpu_map) { 5550 /* for percpu map, the format looks like: 5551 * <key>: { 5552 * cpu0: <value_on_cpu0> 5553 * cpu1: <value_on_cpu1> 5554 * ... 5555 * cpun: <value_on_cpun> 5556 * } 5557 * 5558 * let us verify the line containing the key here. 5559 */ 5560 if (cpu == 0) { 5561 nexpected_line = snprintf(expected_line, 5562 sizeof(expected_line), 5563 "%u: {\n", 5564 next_key); 5565 5566 err = check_line(expected_line, nexpected_line, 5567 sizeof(expected_line), line); 5568 if (err < 0) 5569 goto done; 5570 } 5571 5572 /* read value@cpu */ 5573 nread = getline(&line, &line_len, pin_file); 5574 if (nread < 0) 5575 break; 5576 } 5577 5578 nexpected_line = get_pprint_expected_line(mapv_kind, expected_line, 5579 sizeof(expected_line), 5580 percpu_map, next_key, 5581 cpu, cmapv); 5582 err = check_line(expected_line, nexpected_line, 5583 sizeof(expected_line), line); 5584 if (err < 0) 5585 goto done; 5586 5587 cmapv = cmapv + rounded_value_size; 5588 } 5589 5590 if (percpu_map) { 5591 /* skip the last bracket for the percpu map */ 5592 nread = getline(&line, &line_len, pin_file); 5593 if (nread < 0) 5594 break; 5595 } 5596 5597 nread = getline(&line, &line_len, pin_file); 5598 } while (++nr_read_elems < test->max_entries && nread > 0); 5599 5600 if (lossless_map && 5601 CHECK(nr_read_elems < test->max_entries, 5602 "Unexpected EOF. nr_read_elems:%u test->max_entries:%u", 5603 nr_read_elems, test->max_entries)) { 5604 err = -1; 5605 goto done; 5606 } 5607 5608 if (CHECK(nread > 0, "Unexpected extra pprint output: %s", line)) { 5609 err = -1; 5610 goto done; 5611 } 5612 5613 err = 0; 5614 5615 done: 5616 if (mapv) 5617 free(mapv); 5618 if (!err) 5619 fprintf(stderr, "OK"); 5620 if (*btf_log_buf && (err || always_log)) 5621 fprintf(stderr, "\n%s", btf_log_buf); 5622 if (btf_fd >= 0) 5623 close(btf_fd); 5624 if (map_fd >= 0) 5625 close(map_fd); 5626 if (pin_file) 5627 fclose(pin_file); 5628 unlink(pin_path); 5629 free(line); 5630 } 5631 5632 static void test_pprint(void) 5633 { 5634 unsigned int i; 5635 5636 /* test various maps with the first test template */ 5637 for (i = 0; i < ARRAY_SIZE(pprint_tests_meta); i++) { 5638 pprint_test_template[0].descr = pprint_tests_meta[i].descr; 5639 pprint_test_template[0].map_type = pprint_tests_meta[i].map_type; 5640 pprint_test_template[0].map_name = pprint_tests_meta[i].map_name; 5641 pprint_test_template[0].ordered_map = pprint_tests_meta[i].ordered_map; 5642 pprint_test_template[0].lossless_map = pprint_tests_meta[i].lossless_map; 5643 pprint_test_template[0].percpu_map = pprint_tests_meta[i].percpu_map; 5644 5645 do_test_pprint(0); 5646 } 5647 5648 /* test rest test templates with the first map */ 5649 for (i = 1; i < ARRAY_SIZE(pprint_test_template); i++) { 5650 pprint_test_template[i].descr = pprint_tests_meta[0].descr; 5651 pprint_test_template[i].map_type = pprint_tests_meta[0].map_type; 5652 pprint_test_template[i].map_name = pprint_tests_meta[0].map_name; 5653 pprint_test_template[i].ordered_map = pprint_tests_meta[0].ordered_map; 5654 pprint_test_template[i].lossless_map = pprint_tests_meta[0].lossless_map; 5655 pprint_test_template[i].percpu_map = pprint_tests_meta[0].percpu_map; 5656 do_test_pprint(i); 5657 } 5658 } 5659 5660 #define BPF_LINE_INFO_ENC(insn_off, file_off, line_off, line_num, line_col) \ 5661 (insn_off), (file_off), (line_off), ((line_num) << 10 | ((line_col) & 0x3ff)) 5662 5663 static struct prog_info_raw_test { 5664 const char *descr; 5665 const char *str_sec; 5666 const char *err_str; 5667 __u32 raw_types[MAX_NR_RAW_U32]; 5668 __u32 str_sec_size; 5669 struct bpf_insn insns[MAX_INSNS]; 5670 __u32 prog_type; 5671 __u32 func_info[MAX_SUBPROGS][2]; 5672 __u32 func_info_rec_size; 5673 __u32 func_info_cnt; 5674 __u32 line_info[MAX_NR_RAW_U32]; 5675 __u32 line_info_rec_size; 5676 __u32 nr_jited_ksyms; 5677 bool expected_prog_load_failure; 5678 __u32 dead_code_cnt; 5679 __u32 dead_code_mask; 5680 __u32 dead_func_cnt; 5681 __u32 dead_func_mask; 5682 } info_raw_tests[] = { 5683 { 5684 .descr = "func_type (main func + one sub)", 5685 .raw_types = { 5686 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5687 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ 5688 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 5689 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5690 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5691 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ 5692 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5693 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5694 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ 5695 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ 5696 BTF_END_RAW, 5697 }, 5698 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", 5699 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), 5700 .insns = { 5701 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), 5702 BPF_MOV64_IMM(BPF_REG_0, 1), 5703 BPF_EXIT_INSN(), 5704 BPF_MOV64_IMM(BPF_REG_0, 2), 5705 BPF_EXIT_INSN(), 5706 }, 5707 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5708 .func_info = { {0, 5}, {3, 6} }, 5709 .func_info_rec_size = 8, 5710 .func_info_cnt = 2, 5711 .line_info = { BTF_END_RAW }, 5712 }, 5713 5714 { 5715 .descr = "func_type (Incorrect func_info_rec_size)", 5716 .raw_types = { 5717 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5718 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ 5719 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 5720 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5721 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5722 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ 5723 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5724 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5725 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ 5726 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ 5727 BTF_END_RAW, 5728 }, 5729 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", 5730 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), 5731 .insns = { 5732 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), 5733 BPF_MOV64_IMM(BPF_REG_0, 1), 5734 BPF_EXIT_INSN(), 5735 BPF_MOV64_IMM(BPF_REG_0, 2), 5736 BPF_EXIT_INSN(), 5737 }, 5738 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5739 .func_info = { {0, 5}, {3, 6} }, 5740 .func_info_rec_size = 4, 5741 .func_info_cnt = 2, 5742 .line_info = { BTF_END_RAW }, 5743 .expected_prog_load_failure = true, 5744 }, 5745 5746 { 5747 .descr = "func_type (Incorrect func_info_cnt)", 5748 .raw_types = { 5749 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5750 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ 5751 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 5752 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5753 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5754 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ 5755 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5756 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5757 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ 5758 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ 5759 BTF_END_RAW, 5760 }, 5761 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", 5762 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), 5763 .insns = { 5764 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), 5765 BPF_MOV64_IMM(BPF_REG_0, 1), 5766 BPF_EXIT_INSN(), 5767 BPF_MOV64_IMM(BPF_REG_0, 2), 5768 BPF_EXIT_INSN(), 5769 }, 5770 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5771 .func_info = { {0, 5}, {3, 6} }, 5772 .func_info_rec_size = 8, 5773 .func_info_cnt = 1, 5774 .line_info = { BTF_END_RAW }, 5775 .expected_prog_load_failure = true, 5776 }, 5777 5778 { 5779 .descr = "func_type (Incorrect bpf_func_info.insn_off)", 5780 .raw_types = { 5781 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5782 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ 5783 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 5784 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5785 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5786 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ 5787 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5788 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5789 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ 5790 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ 5791 BTF_END_RAW, 5792 }, 5793 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", 5794 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), 5795 .insns = { 5796 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), 5797 BPF_MOV64_IMM(BPF_REG_0, 1), 5798 BPF_EXIT_INSN(), 5799 BPF_MOV64_IMM(BPF_REG_0, 2), 5800 BPF_EXIT_INSN(), 5801 }, 5802 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5803 .func_info = { {0, 5}, {2, 6} }, 5804 .func_info_rec_size = 8, 5805 .func_info_cnt = 2, 5806 .line_info = { BTF_END_RAW }, 5807 .expected_prog_load_failure = true, 5808 }, 5809 5810 { 5811 .descr = "line_info (No subprog)", 5812 .raw_types = { 5813 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5814 BTF_END_RAW, 5815 }, 5816 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5817 .insns = { 5818 BPF_MOV64_IMM(BPF_REG_0, 1), 5819 BPF_MOV64_IMM(BPF_REG_1, 2), 5820 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5821 BPF_EXIT_INSN(), 5822 }, 5823 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5824 .func_info_cnt = 0, 5825 .line_info = { 5826 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5827 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 5828 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 5829 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 5830 BTF_END_RAW, 5831 }, 5832 .line_info_rec_size = sizeof(struct bpf_line_info), 5833 .nr_jited_ksyms = 1, 5834 }, 5835 5836 { 5837 .descr = "line_info (No subprog. insn_off >= prog->len)", 5838 .raw_types = { 5839 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5840 BTF_END_RAW, 5841 }, 5842 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5843 .insns = { 5844 BPF_MOV64_IMM(BPF_REG_0, 1), 5845 BPF_MOV64_IMM(BPF_REG_1, 2), 5846 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5847 BPF_EXIT_INSN(), 5848 }, 5849 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5850 .func_info_cnt = 0, 5851 .line_info = { 5852 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5853 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 5854 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 5855 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 5856 BPF_LINE_INFO_ENC(4, 0, 0, 5, 6), 5857 BTF_END_RAW, 5858 }, 5859 .line_info_rec_size = sizeof(struct bpf_line_info), 5860 .nr_jited_ksyms = 1, 5861 .err_str = "line_info[4].insn_off", 5862 .expected_prog_load_failure = true, 5863 }, 5864 5865 { 5866 .descr = "line_info (Zero bpf insn code)", 5867 .raw_types = { 5868 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5869 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), /* [2] */ 5870 BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [3] */ 5871 BTF_END_RAW, 5872 }, 5873 BTF_STR_SEC("\0int\0unsigned long\0u64\0u64 a=1;\0return a;"), 5874 .insns = { 5875 BPF_LD_IMM64(BPF_REG_0, 1), 5876 BPF_EXIT_INSN(), 5877 }, 5878 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5879 .func_info_cnt = 0, 5880 .line_info = { 5881 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5882 BPF_LINE_INFO_ENC(1, 0, 0, 2, 9), 5883 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 5884 BTF_END_RAW, 5885 }, 5886 .line_info_rec_size = sizeof(struct bpf_line_info), 5887 .nr_jited_ksyms = 1, 5888 .err_str = "Invalid insn code at line_info[1]", 5889 .expected_prog_load_failure = true, 5890 }, 5891 5892 { 5893 .descr = "line_info (No subprog. zero tailing line_info", 5894 .raw_types = { 5895 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5896 BTF_END_RAW, 5897 }, 5898 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5899 .insns = { 5900 BPF_MOV64_IMM(BPF_REG_0, 1), 5901 BPF_MOV64_IMM(BPF_REG_1, 2), 5902 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5903 BPF_EXIT_INSN(), 5904 }, 5905 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5906 .func_info_cnt = 0, 5907 .line_info = { 5908 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0, 5909 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0, 5910 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0, 5911 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 0, 5912 BTF_END_RAW, 5913 }, 5914 .line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32), 5915 .nr_jited_ksyms = 1, 5916 }, 5917 5918 { 5919 .descr = "line_info (No subprog. nonzero tailing line_info)", 5920 .raw_types = { 5921 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5922 BTF_END_RAW, 5923 }, 5924 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5925 .insns = { 5926 BPF_MOV64_IMM(BPF_REG_0, 1), 5927 BPF_MOV64_IMM(BPF_REG_1, 2), 5928 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5929 BPF_EXIT_INSN(), 5930 }, 5931 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5932 .func_info_cnt = 0, 5933 .line_info = { 5934 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0, 5935 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0, 5936 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0, 5937 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 1, 5938 BTF_END_RAW, 5939 }, 5940 .line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32), 5941 .nr_jited_ksyms = 1, 5942 .err_str = "nonzero tailing record in line_info", 5943 .expected_prog_load_failure = true, 5944 }, 5945 5946 { 5947 .descr = "line_info (subprog)", 5948 .raw_types = { 5949 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5950 BTF_END_RAW, 5951 }, 5952 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 5953 .insns = { 5954 BPF_MOV64_IMM(BPF_REG_2, 1), 5955 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 5956 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 5957 BPF_CALL_REL(1), 5958 BPF_EXIT_INSN(), 5959 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 5960 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 5961 BPF_EXIT_INSN(), 5962 }, 5963 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5964 .func_info_cnt = 0, 5965 .line_info = { 5966 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5967 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), 5968 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), 5969 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 5970 BTF_END_RAW, 5971 }, 5972 .line_info_rec_size = sizeof(struct bpf_line_info), 5973 .nr_jited_ksyms = 2, 5974 }, 5975 5976 { 5977 .descr = "line_info (subprog + func_info)", 5978 .raw_types = { 5979 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5980 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 5981 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5982 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 5983 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 5984 BTF_END_RAW, 5985 }, 5986 BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 5987 .insns = { 5988 BPF_MOV64_IMM(BPF_REG_2, 1), 5989 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 5990 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 5991 BPF_CALL_REL(1), 5992 BPF_EXIT_INSN(), 5993 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 5994 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 5995 BPF_EXIT_INSN(), 5996 }, 5997 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5998 .func_info_cnt = 2, 5999 .func_info_rec_size = 8, 6000 .func_info = { {0, 4}, {5, 3} }, 6001 .line_info = { 6002 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6003 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), 6004 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), 6005 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 6006 BTF_END_RAW, 6007 }, 6008 .line_info_rec_size = sizeof(struct bpf_line_info), 6009 .nr_jited_ksyms = 2, 6010 }, 6011 6012 { 6013 .descr = "line_info (subprog. missing 1st func line info)", 6014 .raw_types = { 6015 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6016 BTF_END_RAW, 6017 }, 6018 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 6019 .insns = { 6020 BPF_MOV64_IMM(BPF_REG_2, 1), 6021 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 6022 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 6023 BPF_CALL_REL(1), 6024 BPF_EXIT_INSN(), 6025 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 6026 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6027 BPF_EXIT_INSN(), 6028 }, 6029 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6030 .func_info_cnt = 0, 6031 .line_info = { 6032 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 1, 10), 6033 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), 6034 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), 6035 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 6036 BTF_END_RAW, 6037 }, 6038 .line_info_rec_size = sizeof(struct bpf_line_info), 6039 .nr_jited_ksyms = 2, 6040 .err_str = "missing bpf_line_info for func#0", 6041 .expected_prog_load_failure = true, 6042 }, 6043 6044 { 6045 .descr = "line_info (subprog. missing 2nd func line info)", 6046 .raw_types = { 6047 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6048 BTF_END_RAW, 6049 }, 6050 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 6051 .insns = { 6052 BPF_MOV64_IMM(BPF_REG_2, 1), 6053 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 6054 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 6055 BPF_CALL_REL(1), 6056 BPF_EXIT_INSN(), 6057 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 6058 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6059 BPF_EXIT_INSN(), 6060 }, 6061 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6062 .func_info_cnt = 0, 6063 .line_info = { 6064 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6065 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), 6066 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 3, 8), 6067 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 6068 BTF_END_RAW, 6069 }, 6070 .line_info_rec_size = sizeof(struct bpf_line_info), 6071 .nr_jited_ksyms = 2, 6072 .err_str = "missing bpf_line_info for func#1", 6073 .expected_prog_load_failure = true, 6074 }, 6075 6076 { 6077 .descr = "line_info (subprog. unordered insn offset)", 6078 .raw_types = { 6079 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6080 BTF_END_RAW, 6081 }, 6082 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 6083 .insns = { 6084 BPF_MOV64_IMM(BPF_REG_2, 1), 6085 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 6086 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 6087 BPF_CALL_REL(1), 6088 BPF_EXIT_INSN(), 6089 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 6090 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6091 BPF_EXIT_INSN(), 6092 }, 6093 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6094 .func_info_cnt = 0, 6095 .line_info = { 6096 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6097 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 2, 9), 6098 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 6099 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 6100 BTF_END_RAW, 6101 }, 6102 .line_info_rec_size = sizeof(struct bpf_line_info), 6103 .nr_jited_ksyms = 2, 6104 .err_str = "Invalid line_info[2].insn_off", 6105 .expected_prog_load_failure = true, 6106 }, 6107 6108 { 6109 .descr = "line_info (dead start)", 6110 .raw_types = { 6111 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6112 BTF_END_RAW, 6113 }, 6114 BTF_STR_SEC("\0int\0/* dead jmp */\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 6115 .insns = { 6116 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 6117 BPF_MOV64_IMM(BPF_REG_0, 1), 6118 BPF_MOV64_IMM(BPF_REG_1, 2), 6119 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 6120 BPF_EXIT_INSN(), 6121 }, 6122 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6123 .func_info_cnt = 0, 6124 .line_info = { 6125 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6126 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 6127 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 6128 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 6129 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 5, 6), 6130 BTF_END_RAW, 6131 }, 6132 .line_info_rec_size = sizeof(struct bpf_line_info), 6133 .nr_jited_ksyms = 1, 6134 .dead_code_cnt = 1, 6135 .dead_code_mask = 0x01, 6136 }, 6137 6138 { 6139 .descr = "line_info (dead end)", 6140 .raw_types = { 6141 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6142 BTF_END_RAW, 6143 }, 6144 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0/* dead jmp */\0return a + b;\0/* dead exit */"), 6145 .insns = { 6146 BPF_MOV64_IMM(BPF_REG_0, 1), 6147 BPF_MOV64_IMM(BPF_REG_1, 2), 6148 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 6149 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1), 6150 BPF_EXIT_INSN(), 6151 BPF_EXIT_INSN(), 6152 }, 6153 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6154 .func_info_cnt = 0, 6155 .line_info = { 6156 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 12), 6157 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 11), 6158 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 10), 6159 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 9), 6160 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 5, 8), 6161 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 6, 7), 6162 BTF_END_RAW, 6163 }, 6164 .line_info_rec_size = sizeof(struct bpf_line_info), 6165 .nr_jited_ksyms = 1, 6166 .dead_code_cnt = 2, 6167 .dead_code_mask = 0x28, 6168 }, 6169 6170 { 6171 .descr = "line_info (dead code + subprog + func_info)", 6172 .raw_types = { 6173 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6174 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6175 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6176 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6177 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 6178 BTF_END_RAW, 6179 }, 6180 BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0/* dead jmp */" 6181 "\0/* dead */\0/* dead */\0/* dead */\0/* dead */" 6182 "\0/* dead */\0/* dead */\0/* dead */\0/* dead */" 6183 "\0return func(a);\0b+=1;\0return b;"), 6184 .insns = { 6185 BPF_MOV64_IMM(BPF_REG_2, 1), 6186 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 6187 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 6188 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 8), 6189 BPF_MOV64_IMM(BPF_REG_2, 1), 6190 BPF_MOV64_IMM(BPF_REG_2, 1), 6191 BPF_MOV64_IMM(BPF_REG_2, 1), 6192 BPF_MOV64_IMM(BPF_REG_2, 1), 6193 BPF_MOV64_IMM(BPF_REG_2, 1), 6194 BPF_MOV64_IMM(BPF_REG_2, 1), 6195 BPF_MOV64_IMM(BPF_REG_2, 1), 6196 BPF_MOV64_IMM(BPF_REG_2, 1), 6197 BPF_CALL_REL(1), 6198 BPF_EXIT_INSN(), 6199 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 6200 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6201 BPF_EXIT_INSN(), 6202 }, 6203 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6204 .func_info_cnt = 2, 6205 .func_info_rec_size = 8, 6206 .func_info = { {0, 4}, {14, 3} }, 6207 .line_info = { 6208 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6209 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 6210 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 6211 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 6212 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 6213 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), 6214 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), 6215 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), 6216 BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10), 6217 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9), 6218 BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9), 6219 BPF_LINE_INFO_ENC(14, 0, NAME_TBD, 3, 8), 6220 BPF_LINE_INFO_ENC(16, 0, NAME_TBD, 4, 7), 6221 BTF_END_RAW, 6222 }, 6223 .line_info_rec_size = sizeof(struct bpf_line_info), 6224 .nr_jited_ksyms = 2, 6225 .dead_code_cnt = 9, 6226 .dead_code_mask = 0x3fe, 6227 }, 6228 6229 { 6230 .descr = "line_info (dead subprog)", 6231 .raw_types = { 6232 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6233 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6234 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6235 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6236 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 6237 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ 6238 BTF_END_RAW, 6239 }, 6240 BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* live call */" 6241 "\0return 0;\0return 0;\0/* dead */\0/* dead */" 6242 "\0/* dead */\0return bla + 1;\0return bla + 1;" 6243 "\0return bla + 1;\0return func(a);\0b+=1;\0return b;"), 6244 .insns = { 6245 BPF_MOV64_IMM(BPF_REG_2, 1), 6246 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), 6247 BPF_CALL_REL(3), 6248 BPF_CALL_REL(5), 6249 BPF_MOV64_IMM(BPF_REG_0, 0), 6250 BPF_EXIT_INSN(), 6251 BPF_MOV64_IMM(BPF_REG_0, 0), 6252 BPF_CALL_REL(1), 6253 BPF_EXIT_INSN(), 6254 BPF_MOV64_REG(BPF_REG_0, 2), 6255 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6256 BPF_EXIT_INSN(), 6257 }, 6258 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6259 .func_info_cnt = 3, 6260 .func_info_rec_size = 8, 6261 .func_info = { {0, 4}, {6, 3}, {9, 5} }, 6262 .line_info = { 6263 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6264 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 6265 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 6266 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 6267 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 6268 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), 6269 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), 6270 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), 6271 BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10), 6272 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9), 6273 BTF_END_RAW, 6274 }, 6275 .line_info_rec_size = sizeof(struct bpf_line_info), 6276 .nr_jited_ksyms = 2, 6277 .dead_code_cnt = 3, 6278 .dead_code_mask = 0x70, 6279 .dead_func_cnt = 1, 6280 .dead_func_mask = 0x2, 6281 }, 6282 6283 { 6284 .descr = "line_info (dead last subprog)", 6285 .raw_types = { 6286 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6287 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6288 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6289 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6290 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ 6291 BTF_END_RAW, 6292 }, 6293 BTF_STR_SEC("\0int\0x\0dead\0main\0int a=1+1;\0/* live call */" 6294 "\0return 0;\0/* dead */\0/* dead */"), 6295 .insns = { 6296 BPF_MOV64_IMM(BPF_REG_2, 1), 6297 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), 6298 BPF_CALL_REL(2), 6299 BPF_MOV64_IMM(BPF_REG_0, 0), 6300 BPF_EXIT_INSN(), 6301 BPF_MOV64_IMM(BPF_REG_0, 0), 6302 BPF_EXIT_INSN(), 6303 }, 6304 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6305 .func_info_cnt = 2, 6306 .func_info_rec_size = 8, 6307 .func_info = { {0, 4}, {5, 3} }, 6308 .line_info = { 6309 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6310 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 6311 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 6312 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 6313 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 6314 BTF_END_RAW, 6315 }, 6316 .line_info_rec_size = sizeof(struct bpf_line_info), 6317 .nr_jited_ksyms = 1, 6318 .dead_code_cnt = 2, 6319 .dead_code_mask = 0x18, 6320 .dead_func_cnt = 1, 6321 .dead_func_mask = 0x2, 6322 }, 6323 6324 { 6325 .descr = "line_info (dead subprog + dead start)", 6326 .raw_types = { 6327 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6328 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6329 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6330 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6331 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 6332 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ 6333 BTF_END_RAW, 6334 }, 6335 BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* dead */" 6336 "\0return 0;\0return 0;\0return 0;" 6337 "\0/* dead */\0/* dead */\0/* dead */\0/* dead */" 6338 "\0return b + 1;\0return b + 1;\0return b + 1;"), 6339 .insns = { 6340 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 6341 BPF_MOV64_IMM(BPF_REG_2, 1), 6342 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), 6343 BPF_CALL_REL(3), 6344 BPF_CALL_REL(5), 6345 BPF_MOV64_IMM(BPF_REG_0, 0), 6346 BPF_EXIT_INSN(), 6347 BPF_MOV64_IMM(BPF_REG_0, 0), 6348 BPF_CALL_REL(1), 6349 BPF_EXIT_INSN(), 6350 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 6351 BPF_MOV64_REG(BPF_REG_0, 2), 6352 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6353 BPF_EXIT_INSN(), 6354 }, 6355 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6356 .func_info_cnt = 3, 6357 .func_info_rec_size = 8, 6358 .func_info = { {0, 4}, {7, 3}, {10, 5} }, 6359 .line_info = { 6360 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6361 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 6362 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 6363 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 6364 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 6365 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), 6366 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), 6367 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), 6368 BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10), 6369 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9), 6370 BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9), 6371 BPF_LINE_INFO_ENC(13, 0, NAME_TBD, 2, 9), 6372 BTF_END_RAW, 6373 }, 6374 .line_info_rec_size = sizeof(struct bpf_line_info), 6375 .nr_jited_ksyms = 2, 6376 .dead_code_cnt = 5, 6377 .dead_code_mask = 0x1e2, 6378 .dead_func_cnt = 1, 6379 .dead_func_mask = 0x2, 6380 }, 6381 6382 { 6383 .descr = "line_info (dead subprog + dead start w/ move)", 6384 .raw_types = { 6385 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6386 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6387 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6388 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6389 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 6390 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ 6391 BTF_END_RAW, 6392 }, 6393 BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* live call */" 6394 "\0return 0;\0return 0;\0/* dead */\0/* dead */" 6395 "\0/* dead */\0return bla + 1;\0return bla + 1;" 6396 "\0return bla + 1;\0return func(a);\0b+=1;\0return b;"), 6397 .insns = { 6398 BPF_MOV64_IMM(BPF_REG_2, 1), 6399 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), 6400 BPF_CALL_REL(3), 6401 BPF_CALL_REL(5), 6402 BPF_MOV64_IMM(BPF_REG_0, 0), 6403 BPF_EXIT_INSN(), 6404 BPF_MOV64_IMM(BPF_REG_0, 0), 6405 BPF_CALL_REL(1), 6406 BPF_EXIT_INSN(), 6407 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 6408 BPF_MOV64_REG(BPF_REG_0, 2), 6409 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 6410 BPF_EXIT_INSN(), 6411 }, 6412 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6413 .func_info_cnt = 3, 6414 .func_info_rec_size = 8, 6415 .func_info = { {0, 4}, {6, 3}, {9, 5} }, 6416 .line_info = { 6417 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6418 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 6419 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 6420 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 6421 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 6422 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), 6423 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), 6424 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), 6425 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 1, 10), 6426 BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9), 6427 BTF_END_RAW, 6428 }, 6429 .line_info_rec_size = sizeof(struct bpf_line_info), 6430 .nr_jited_ksyms = 2, 6431 .dead_code_cnt = 3, 6432 .dead_code_mask = 0x70, 6433 .dead_func_cnt = 1, 6434 .dead_func_mask = 0x2, 6435 }, 6436 6437 { 6438 .descr = "line_info (dead end + subprog start w/ no linfo)", 6439 .raw_types = { 6440 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6441 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 6442 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6443 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 6444 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 6445 BTF_END_RAW, 6446 }, 6447 BTF_STR_SEC("\0int\0x\0main\0func\0/* main linfo */\0/* func linfo */"), 6448 .insns = { 6449 BPF_MOV64_IMM(BPF_REG_0, 0), 6450 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 1, 3), 6451 BPF_CALL_REL(3), 6452 BPF_MOV64_IMM(BPF_REG_0, 0), 6453 BPF_EXIT_INSN(), 6454 BPF_EXIT_INSN(), 6455 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 6456 BPF_EXIT_INSN(), 6457 }, 6458 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 6459 .func_info_cnt = 2, 6460 .func_info_rec_size = 8, 6461 .func_info = { {0, 3}, {6, 4}, }, 6462 .line_info = { 6463 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 6464 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 6465 BTF_END_RAW, 6466 }, 6467 .line_info_rec_size = sizeof(struct bpf_line_info), 6468 .nr_jited_ksyms = 2, 6469 }, 6470 6471 }; 6472 6473 static size_t probe_prog_length(const struct bpf_insn *fp) 6474 { 6475 size_t len; 6476 6477 for (len = MAX_INSNS - 1; len > 0; --len) 6478 if (fp[len].code != 0 || fp[len].imm != 0) 6479 break; 6480 return len + 1; 6481 } 6482 6483 static __u32 *patch_name_tbd(const __u32 *raw_u32, 6484 const char *str, __u32 str_off, 6485 unsigned int str_sec_size, 6486 unsigned int *ret_size) 6487 { 6488 int i, raw_u32_size = get_raw_sec_size(raw_u32); 6489 const char *end_str = str + str_sec_size; 6490 const char *next_str = str + str_off; 6491 __u32 *new_u32 = NULL; 6492 6493 if (raw_u32_size == -1) 6494 return ERR_PTR(-EINVAL); 6495 6496 if (!raw_u32_size) { 6497 *ret_size = 0; 6498 return NULL; 6499 } 6500 6501 new_u32 = malloc(raw_u32_size); 6502 if (!new_u32) 6503 return ERR_PTR(-ENOMEM); 6504 6505 for (i = 0; i < raw_u32_size / sizeof(raw_u32[0]); i++) { 6506 if (raw_u32[i] == NAME_TBD) { 6507 next_str = get_next_str(next_str, end_str); 6508 if (CHECK(!next_str, "Error in getting next_str\n")) { 6509 free(new_u32); 6510 return ERR_PTR(-EINVAL); 6511 } 6512 new_u32[i] = next_str - str; 6513 next_str += strlen(next_str); 6514 } else { 6515 new_u32[i] = raw_u32[i]; 6516 } 6517 } 6518 6519 *ret_size = raw_u32_size; 6520 return new_u32; 6521 } 6522 6523 static int test_get_finfo(const struct prog_info_raw_test *test, 6524 int prog_fd) 6525 { 6526 struct bpf_prog_info info = {}; 6527 struct bpf_func_info *finfo; 6528 __u32 info_len, rec_size, i; 6529 void *func_info = NULL; 6530 __u32 nr_func_info; 6531 int err; 6532 6533 /* get necessary lens */ 6534 info_len = sizeof(struct bpf_prog_info); 6535 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len); 6536 if (CHECK(err < 0, "invalid get info (1st) errno:%d", errno)) { 6537 fprintf(stderr, "%s\n", btf_log_buf); 6538 return -1; 6539 } 6540 nr_func_info = test->func_info_cnt - test->dead_func_cnt; 6541 if (CHECK(info.nr_func_info != nr_func_info, 6542 "incorrect info.nr_func_info (1st) %d", 6543 info.nr_func_info)) { 6544 return -1; 6545 } 6546 6547 rec_size = info.func_info_rec_size; 6548 if (CHECK(rec_size != sizeof(struct bpf_func_info), 6549 "incorrect info.func_info_rec_size (1st) %d", rec_size)) { 6550 return -1; 6551 } 6552 6553 if (!info.nr_func_info) 6554 return 0; 6555 6556 func_info = malloc(info.nr_func_info * rec_size); 6557 if (CHECK(!func_info, "out of memory")) 6558 return -1; 6559 6560 /* reset info to only retrieve func_info related data */ 6561 memset(&info, 0, sizeof(info)); 6562 info.nr_func_info = nr_func_info; 6563 info.func_info_rec_size = rec_size; 6564 info.func_info = ptr_to_u64(func_info); 6565 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len); 6566 if (CHECK(err < 0, "invalid get info (2nd) errno:%d", errno)) { 6567 fprintf(stderr, "%s\n", btf_log_buf); 6568 err = -1; 6569 goto done; 6570 } 6571 if (CHECK(info.nr_func_info != nr_func_info, 6572 "incorrect info.nr_func_info (2nd) %d", 6573 info.nr_func_info)) { 6574 err = -1; 6575 goto done; 6576 } 6577 if (CHECK(info.func_info_rec_size != rec_size, 6578 "incorrect info.func_info_rec_size (2nd) %d", 6579 info.func_info_rec_size)) { 6580 err = -1; 6581 goto done; 6582 } 6583 6584 finfo = func_info; 6585 for (i = 0; i < nr_func_info; i++) { 6586 if (test->dead_func_mask & (1 << i)) 6587 continue; 6588 if (CHECK(finfo->type_id != test->func_info[i][1], 6589 "incorrect func_type %u expected %u", 6590 finfo->type_id, test->func_info[i][1])) { 6591 err = -1; 6592 goto done; 6593 } 6594 finfo = (void *)finfo + rec_size; 6595 } 6596 6597 err = 0; 6598 6599 done: 6600 free(func_info); 6601 return err; 6602 } 6603 6604 static int test_get_linfo(const struct prog_info_raw_test *test, 6605 const void *patched_linfo, 6606 __u32 cnt, int prog_fd) 6607 { 6608 __u32 i, info_len, nr_jited_ksyms, nr_jited_func_lens; 6609 __u64 *jited_linfo = NULL, *jited_ksyms = NULL; 6610 __u32 rec_size, jited_rec_size, jited_cnt; 6611 struct bpf_line_info *linfo = NULL; 6612 __u32 cur_func_len, ksyms_found; 6613 struct bpf_prog_info info = {}; 6614 __u32 *jited_func_lens = NULL; 6615 __u64 cur_func_ksyms; 6616 __u32 dead_insns; 6617 int err; 6618 6619 jited_cnt = cnt; 6620 rec_size = sizeof(*linfo); 6621 jited_rec_size = sizeof(*jited_linfo); 6622 if (test->nr_jited_ksyms) 6623 nr_jited_ksyms = test->nr_jited_ksyms; 6624 else 6625 nr_jited_ksyms = test->func_info_cnt - test->dead_func_cnt; 6626 nr_jited_func_lens = nr_jited_ksyms; 6627 6628 info_len = sizeof(struct bpf_prog_info); 6629 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len); 6630 if (CHECK(err < 0, "err:%d errno:%d", err, errno)) { 6631 err = -1; 6632 goto done; 6633 } 6634 6635 if (!info.jited_prog_len) { 6636 /* prog is not jited */ 6637 jited_cnt = 0; 6638 nr_jited_ksyms = 1; 6639 nr_jited_func_lens = 1; 6640 } 6641 6642 if (CHECK(info.nr_line_info != cnt || 6643 info.nr_jited_line_info != jited_cnt || 6644 info.nr_jited_ksyms != nr_jited_ksyms || 6645 info.nr_jited_func_lens != nr_jited_func_lens || 6646 (!info.nr_line_info && info.nr_jited_line_info), 6647 "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)", 6648 info.nr_line_info, cnt, 6649 info.nr_jited_line_info, jited_cnt, 6650 info.nr_jited_ksyms, nr_jited_ksyms, 6651 info.nr_jited_func_lens, nr_jited_func_lens)) { 6652 err = -1; 6653 goto done; 6654 } 6655 6656 if (CHECK(info.line_info_rec_size != sizeof(struct bpf_line_info) || 6657 info.jited_line_info_rec_size != sizeof(__u64), 6658 "info: line_info_rec_size:%u(userspace expected:%u) jited_line_info_rec_size:%u(userspace expected:%u)", 6659 info.line_info_rec_size, rec_size, 6660 info.jited_line_info_rec_size, jited_rec_size)) { 6661 err = -1; 6662 goto done; 6663 } 6664 6665 if (!cnt) 6666 return 0; 6667 6668 rec_size = info.line_info_rec_size; 6669 jited_rec_size = info.jited_line_info_rec_size; 6670 6671 memset(&info, 0, sizeof(info)); 6672 6673 linfo = calloc(cnt, rec_size); 6674 if (CHECK(!linfo, "!linfo")) { 6675 err = -1; 6676 goto done; 6677 } 6678 info.nr_line_info = cnt; 6679 info.line_info_rec_size = rec_size; 6680 info.line_info = ptr_to_u64(linfo); 6681 6682 if (jited_cnt) { 6683 jited_linfo = calloc(jited_cnt, jited_rec_size); 6684 jited_ksyms = calloc(nr_jited_ksyms, sizeof(*jited_ksyms)); 6685 jited_func_lens = calloc(nr_jited_func_lens, 6686 sizeof(*jited_func_lens)); 6687 if (CHECK(!jited_linfo || !jited_ksyms || !jited_func_lens, 6688 "jited_linfo:%p jited_ksyms:%p jited_func_lens:%p", 6689 jited_linfo, jited_ksyms, jited_func_lens)) { 6690 err = -1; 6691 goto done; 6692 } 6693 6694 info.nr_jited_line_info = jited_cnt; 6695 info.jited_line_info_rec_size = jited_rec_size; 6696 info.jited_line_info = ptr_to_u64(jited_linfo); 6697 info.nr_jited_ksyms = nr_jited_ksyms; 6698 info.jited_ksyms = ptr_to_u64(jited_ksyms); 6699 info.nr_jited_func_lens = nr_jited_func_lens; 6700 info.jited_func_lens = ptr_to_u64(jited_func_lens); 6701 } 6702 6703 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len); 6704 6705 /* 6706 * Only recheck the info.*line_info* fields. 6707 * Other fields are not the concern of this test. 6708 */ 6709 if (CHECK(err < 0 || 6710 info.nr_line_info != cnt || 6711 (jited_cnt && !info.jited_line_info) || 6712 info.nr_jited_line_info != jited_cnt || 6713 info.line_info_rec_size != rec_size || 6714 info.jited_line_info_rec_size != jited_rec_size, 6715 "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", 6716 err, errno, 6717 info.nr_line_info, cnt, 6718 info.nr_jited_line_info, jited_cnt, 6719 info.line_info_rec_size, rec_size, 6720 info.jited_line_info_rec_size, jited_rec_size, 6721 (void *)(long)info.line_info, 6722 (void *)(long)info.jited_line_info)) { 6723 err = -1; 6724 goto done; 6725 } 6726 6727 dead_insns = 0; 6728 while (test->dead_code_mask & (1 << dead_insns)) 6729 dead_insns++; 6730 6731 CHECK(linfo[0].insn_off, "linfo[0].insn_off:%u", 6732 linfo[0].insn_off); 6733 for (i = 1; i < cnt; i++) { 6734 const struct bpf_line_info *expected_linfo; 6735 6736 while (test->dead_code_mask & (1 << (i + dead_insns))) 6737 dead_insns++; 6738 6739 expected_linfo = patched_linfo + 6740 ((i + dead_insns) * test->line_info_rec_size); 6741 if (CHECK(linfo[i].insn_off <= linfo[i - 1].insn_off, 6742 "linfo[%u].insn_off:%u <= linfo[%u].insn_off:%u", 6743 i, linfo[i].insn_off, 6744 i - 1, linfo[i - 1].insn_off)) { 6745 err = -1; 6746 goto done; 6747 } 6748 if (CHECK(linfo[i].file_name_off != expected_linfo->file_name_off || 6749 linfo[i].line_off != expected_linfo->line_off || 6750 linfo[i].line_col != expected_linfo->line_col, 6751 "linfo[%u] (%u, %u, %u) != (%u, %u, %u)", i, 6752 linfo[i].file_name_off, 6753 linfo[i].line_off, 6754 linfo[i].line_col, 6755 expected_linfo->file_name_off, 6756 expected_linfo->line_off, 6757 expected_linfo->line_col)) { 6758 err = -1; 6759 goto done; 6760 } 6761 } 6762 6763 if (!jited_cnt) { 6764 fprintf(stderr, "not jited. skipping jited_line_info check. "); 6765 err = 0; 6766 goto done; 6767 } 6768 6769 if (CHECK(jited_linfo[0] != jited_ksyms[0], 6770 "jited_linfo[0]:%lx != jited_ksyms[0]:%lx", 6771 (long)(jited_linfo[0]), (long)(jited_ksyms[0]))) { 6772 err = -1; 6773 goto done; 6774 } 6775 6776 ksyms_found = 1; 6777 cur_func_len = jited_func_lens[0]; 6778 cur_func_ksyms = jited_ksyms[0]; 6779 for (i = 1; i < jited_cnt; i++) { 6780 if (ksyms_found < nr_jited_ksyms && 6781 jited_linfo[i] == jited_ksyms[ksyms_found]) { 6782 cur_func_ksyms = jited_ksyms[ksyms_found]; 6783 cur_func_len = jited_ksyms[ksyms_found]; 6784 ksyms_found++; 6785 continue; 6786 } 6787 6788 if (CHECK(jited_linfo[i] <= jited_linfo[i - 1], 6789 "jited_linfo[%u]:%lx <= jited_linfo[%u]:%lx", 6790 i, (long)jited_linfo[i], 6791 i - 1, (long)(jited_linfo[i - 1]))) { 6792 err = -1; 6793 goto done; 6794 } 6795 6796 if (CHECK(jited_linfo[i] - cur_func_ksyms > cur_func_len, 6797 "jited_linfo[%u]:%lx - %lx > %u", 6798 i, (long)jited_linfo[i], (long)cur_func_ksyms, 6799 cur_func_len)) { 6800 err = -1; 6801 goto done; 6802 } 6803 } 6804 6805 if (CHECK(ksyms_found != nr_jited_ksyms, 6806 "ksyms_found:%u != nr_jited_ksyms:%u", 6807 ksyms_found, nr_jited_ksyms)) { 6808 err = -1; 6809 goto done; 6810 } 6811 6812 err = 0; 6813 6814 done: 6815 free(linfo); 6816 free(jited_linfo); 6817 free(jited_ksyms); 6818 free(jited_func_lens); 6819 return err; 6820 } 6821 6822 static void do_test_info_raw(unsigned int test_num) 6823 { 6824 const struct prog_info_raw_test *test = &info_raw_tests[test_num - 1]; 6825 unsigned int raw_btf_size, linfo_str_off, linfo_size = 0; 6826 int btf_fd = -1, prog_fd = -1, err = 0; 6827 void *raw_btf, *patched_linfo = NULL; 6828 const char *ret_next_str; 6829 union bpf_attr attr = {}; 6830 6831 if (!test__start_subtest(test->descr)) 6832 return; 6833 6834 raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, 6835 test->str_sec, test->str_sec_size, 6836 &raw_btf_size, &ret_next_str); 6837 if (!raw_btf) 6838 return; 6839 6840 *btf_log_buf = '\0'; 6841 btf_fd = load_raw_btf(raw_btf, raw_btf_size); 6842 free(raw_btf); 6843 6844 if (CHECK(btf_fd < 0, "invalid btf_fd errno:%d", errno)) { 6845 err = -1; 6846 goto done; 6847 } 6848 6849 if (*btf_log_buf && always_log) 6850 fprintf(stderr, "\n%s", btf_log_buf); 6851 *btf_log_buf = '\0'; 6852 6853 linfo_str_off = ret_next_str - test->str_sec; 6854 patched_linfo = patch_name_tbd(test->line_info, 6855 test->str_sec, linfo_str_off, 6856 test->str_sec_size, &linfo_size); 6857 err = libbpf_get_error(patched_linfo); 6858 if (err) { 6859 fprintf(stderr, "error in creating raw bpf_line_info"); 6860 err = -1; 6861 goto done; 6862 } 6863 6864 attr.prog_type = test->prog_type; 6865 attr.insns = ptr_to_u64(test->insns); 6866 attr.insn_cnt = probe_prog_length(test->insns); 6867 attr.license = ptr_to_u64("GPL"); 6868 attr.prog_btf_fd = btf_fd; 6869 attr.func_info_rec_size = test->func_info_rec_size; 6870 attr.func_info_cnt = test->func_info_cnt; 6871 attr.func_info = ptr_to_u64(test->func_info); 6872 attr.log_buf = ptr_to_u64(btf_log_buf); 6873 attr.log_size = BTF_LOG_BUF_SIZE; 6874 attr.log_level = 1; 6875 if (linfo_size) { 6876 attr.line_info_rec_size = test->line_info_rec_size; 6877 attr.line_info = ptr_to_u64(patched_linfo); 6878 attr.line_info_cnt = linfo_size / attr.line_info_rec_size; 6879 } 6880 6881 prog_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr)); 6882 err = ((prog_fd < 0) != test->expected_prog_load_failure); 6883 if (CHECK(err, "prog_fd:%d expected_prog_load_failure:%u errno:%d", 6884 prog_fd, test->expected_prog_load_failure, errno) || 6885 CHECK(test->err_str && !strstr(btf_log_buf, test->err_str), 6886 "expected err_str:%s", test->err_str)) { 6887 err = -1; 6888 goto done; 6889 } 6890 6891 if (prog_fd < 0) 6892 goto done; 6893 6894 err = test_get_finfo(test, prog_fd); 6895 if (err) 6896 goto done; 6897 6898 err = test_get_linfo(test, patched_linfo, 6899 attr.line_info_cnt - test->dead_code_cnt, 6900 prog_fd); 6901 if (err) 6902 goto done; 6903 6904 done: 6905 if (*btf_log_buf && (err || always_log)) 6906 fprintf(stderr, "\n%s", btf_log_buf); 6907 6908 if (btf_fd >= 0) 6909 close(btf_fd); 6910 if (prog_fd >= 0) 6911 close(prog_fd); 6912 6913 if (!libbpf_get_error(patched_linfo)) 6914 free(patched_linfo); 6915 } 6916 6917 struct btf_raw_data { 6918 __u32 raw_types[MAX_NR_RAW_U32]; 6919 const char *str_sec; 6920 __u32 str_sec_size; 6921 }; 6922 6923 struct btf_dedup_test { 6924 const char *descr; 6925 struct btf_raw_data input; 6926 struct btf_raw_data expect; 6927 struct btf_dedup_opts opts; 6928 }; 6929 6930 static struct btf_dedup_test dedup_tests[] = { 6931 6932 { 6933 .descr = "dedup: unused strings filtering", 6934 .input = { 6935 .raw_types = { 6936 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 4), 6937 BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 64, 8), 6938 BTF_END_RAW, 6939 }, 6940 BTF_STR_SEC("\0unused\0int\0foo\0bar\0long"), 6941 }, 6942 .expect = { 6943 .raw_types = { 6944 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 6945 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8), 6946 BTF_END_RAW, 6947 }, 6948 BTF_STR_SEC("\0int\0long"), 6949 }, 6950 }, 6951 { 6952 .descr = "dedup: strings deduplication", 6953 .input = { 6954 .raw_types = { 6955 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 6956 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8), 6957 BTF_TYPE_INT_ENC(NAME_NTH(3), BTF_INT_SIGNED, 0, 32, 4), 6958 BTF_TYPE_INT_ENC(NAME_NTH(4), BTF_INT_SIGNED, 0, 64, 8), 6959 BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 32, 4), 6960 BTF_END_RAW, 6961 }, 6962 BTF_STR_SEC("\0int\0long int\0int\0long int\0int"), 6963 }, 6964 .expect = { 6965 .raw_types = { 6966 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 6967 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8), 6968 BTF_END_RAW, 6969 }, 6970 BTF_STR_SEC("\0int\0long int"), 6971 }, 6972 }, 6973 { 6974 .descr = "dedup: struct example #1", 6975 /* 6976 * struct s { 6977 * struct s *next; 6978 * const int *a; 6979 * int b[16]; 6980 * int c; 6981 * } 6982 */ 6983 .input = { 6984 .raw_types = { 6985 /* int */ 6986 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6987 /* int[16] */ 6988 BTF_TYPE_ARRAY_ENC(1, 1, 16), /* [2] */ 6989 /* struct s { */ 6990 BTF_STRUCT_ENC(NAME_NTH(2), 5, 88), /* [3] */ 6991 BTF_MEMBER_ENC(NAME_NTH(3), 4, 0), /* struct s *next; */ 6992 BTF_MEMBER_ENC(NAME_NTH(4), 5, 64), /* const int *a; */ 6993 BTF_MEMBER_ENC(NAME_NTH(5), 2, 128), /* int b[16]; */ 6994 BTF_MEMBER_ENC(NAME_NTH(6), 1, 640), /* int c; */ 6995 BTF_MEMBER_ENC(NAME_NTH(8), 15, 672), /* float d; */ 6996 /* ptr -> [3] struct s */ 6997 BTF_PTR_ENC(3), /* [4] */ 6998 /* ptr -> [6] const int */ 6999 BTF_PTR_ENC(6), /* [5] */ 7000 /* const -> [1] int */ 7001 BTF_CONST_ENC(1), /* [6] */ 7002 /* tag -> [3] struct s */ 7003 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [7] */ 7004 /* tag -> [3] struct s, member 1 */ 7005 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, 1), /* [8] */ 7006 7007 /* full copy of the above */ 7008 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [9] */ 7009 BTF_TYPE_ARRAY_ENC(9, 9, 16), /* [10] */ 7010 BTF_STRUCT_ENC(NAME_NTH(2), 5, 88), /* [11] */ 7011 BTF_MEMBER_ENC(NAME_NTH(3), 12, 0), 7012 BTF_MEMBER_ENC(NAME_NTH(4), 13, 64), 7013 BTF_MEMBER_ENC(NAME_NTH(5), 10, 128), 7014 BTF_MEMBER_ENC(NAME_NTH(6), 9, 640), 7015 BTF_MEMBER_ENC(NAME_NTH(8), 15, 672), 7016 BTF_PTR_ENC(11), /* [12] */ 7017 BTF_PTR_ENC(14), /* [13] */ 7018 BTF_CONST_ENC(9), /* [14] */ 7019 BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4), /* [15] */ 7020 BTF_DECL_TAG_ENC(NAME_NTH(2), 11, -1), /* [16] */ 7021 BTF_DECL_TAG_ENC(NAME_NTH(2), 11, 1), /* [17] */ 7022 BTF_END_RAW, 7023 }, 7024 BTF_STR_SEC("\0int\0s\0next\0a\0b\0c\0float\0d"), 7025 }, 7026 .expect = { 7027 .raw_types = { 7028 /* int */ 7029 BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7030 /* int[16] */ 7031 BTF_TYPE_ARRAY_ENC(1, 1, 16), /* [2] */ 7032 /* struct s { */ 7033 BTF_STRUCT_ENC(NAME_NTH(8), 5, 88), /* [3] */ 7034 BTF_MEMBER_ENC(NAME_NTH(7), 4, 0), /* struct s *next; */ 7035 BTF_MEMBER_ENC(NAME_NTH(1), 5, 64), /* const int *a; */ 7036 BTF_MEMBER_ENC(NAME_NTH(2), 2, 128), /* int b[16]; */ 7037 BTF_MEMBER_ENC(NAME_NTH(3), 1, 640), /* int c; */ 7038 BTF_MEMBER_ENC(NAME_NTH(4), 9, 672), /* float d; */ 7039 /* ptr -> [3] struct s */ 7040 BTF_PTR_ENC(3), /* [4] */ 7041 /* ptr -> [6] const int */ 7042 BTF_PTR_ENC(6), /* [5] */ 7043 /* const -> [1] int */ 7044 BTF_CONST_ENC(1), /* [6] */ 7045 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [7] */ 7046 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, 1), /* [8] */ 7047 BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4), /* [9] */ 7048 BTF_END_RAW, 7049 }, 7050 BTF_STR_SEC("\0a\0b\0c\0d\0int\0float\0next\0s"), 7051 }, 7052 }, 7053 { 7054 .descr = "dedup: struct <-> fwd resolution w/ hash collision", 7055 /* 7056 * // CU 1: 7057 * struct x; 7058 * struct s { 7059 * struct x *x; 7060 * }; 7061 * // CU 2: 7062 * struct x {}; 7063 * struct s { 7064 * struct x *x; 7065 * }; 7066 */ 7067 .input = { 7068 .raw_types = { 7069 /* CU 1 */ 7070 BTF_FWD_ENC(NAME_TBD, 0 /* struct fwd */), /* [1] fwd x */ 7071 BTF_PTR_ENC(1), /* [2] ptr -> [1] */ 7072 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [3] struct s */ 7073 BTF_MEMBER_ENC(NAME_TBD, 2, 0), 7074 /* CU 2 */ 7075 BTF_STRUCT_ENC(NAME_TBD, 0, 0), /* [4] struct x */ 7076 BTF_PTR_ENC(4), /* [5] ptr -> [4] */ 7077 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [6] struct s */ 7078 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 7079 BTF_END_RAW, 7080 }, 7081 BTF_STR_SEC("\0x\0s\0x\0x\0s\0x\0"), 7082 }, 7083 .expect = { 7084 .raw_types = { 7085 BTF_PTR_ENC(3), /* [1] ptr -> [3] */ 7086 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [2] struct s */ 7087 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 7088 BTF_STRUCT_ENC(NAME_NTH(2), 0, 0), /* [3] struct x */ 7089 BTF_END_RAW, 7090 }, 7091 BTF_STR_SEC("\0s\0x"), 7092 }, 7093 .opts = { 7094 .force_collisions = true, /* force hash collisions */ 7095 }, 7096 }, 7097 { 7098 .descr = "dedup: void equiv check", 7099 /* 7100 * // CU 1: 7101 * struct s { 7102 * struct {} *x; 7103 * }; 7104 * // CU 2: 7105 * struct s { 7106 * int *x; 7107 * }; 7108 */ 7109 .input = { 7110 .raw_types = { 7111 /* CU 1 */ 7112 BTF_STRUCT_ENC(0, 0, 1), /* [1] struct {} */ 7113 BTF_PTR_ENC(1), /* [2] ptr -> [1] */ 7114 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [3] struct s */ 7115 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7116 /* CU 2 */ 7117 BTF_PTR_ENC(0), /* [4] ptr -> void */ 7118 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [5] struct s */ 7119 BTF_MEMBER_ENC(NAME_NTH(2), 4, 0), 7120 BTF_END_RAW, 7121 }, 7122 BTF_STR_SEC("\0s\0x"), 7123 }, 7124 .expect = { 7125 .raw_types = { 7126 /* CU 1 */ 7127 BTF_STRUCT_ENC(0, 0, 1), /* [1] struct {} */ 7128 BTF_PTR_ENC(1), /* [2] ptr -> [1] */ 7129 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [3] struct s */ 7130 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7131 /* CU 2 */ 7132 BTF_PTR_ENC(0), /* [4] ptr -> void */ 7133 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [5] struct s */ 7134 BTF_MEMBER_ENC(NAME_NTH(2), 4, 0), 7135 BTF_END_RAW, 7136 }, 7137 BTF_STR_SEC("\0s\0x"), 7138 }, 7139 .opts = { 7140 .force_collisions = true, /* force hash collisions */ 7141 }, 7142 }, 7143 { 7144 .descr = "dedup: all possible kinds (no duplicates)", 7145 .input = { 7146 .raw_types = { 7147 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 8), /* [1] int */ 7148 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 4), /* [2] enum */ 7149 BTF_ENUM_ENC(NAME_TBD, 0), 7150 BTF_ENUM_ENC(NAME_TBD, 1), 7151 BTF_FWD_ENC(NAME_TBD, 1 /* union kind_flag */), /* [3] fwd */ 7152 BTF_TYPE_ARRAY_ENC(2, 1, 7), /* [4] array */ 7153 BTF_STRUCT_ENC(NAME_TBD, 1, 4), /* [5] struct */ 7154 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 7155 BTF_UNION_ENC(NAME_TBD, 1, 4), /* [6] union */ 7156 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 7157 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [7] typedef */ 7158 BTF_PTR_ENC(0), /* [8] ptr */ 7159 BTF_CONST_ENC(8), /* [9] const */ 7160 BTF_VOLATILE_ENC(8), /* [10] volatile */ 7161 BTF_RESTRICT_ENC(8), /* [11] restrict */ 7162 BTF_FUNC_PROTO_ENC(1, 2), /* [12] func_proto */ 7163 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 7164 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 18), 7165 BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */ 7166 BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [14] float */ 7167 BTF_DECL_TAG_ENC(NAME_TBD, 13, -1), /* [15] decl_tag */ 7168 BTF_DECL_TAG_ENC(NAME_TBD, 13, 1), /* [16] decl_tag */ 7169 BTF_DECL_TAG_ENC(NAME_TBD, 7, -1), /* [17] decl_tag */ 7170 BTF_TYPE_TAG_ENC(NAME_TBD, 8), /* [18] type_tag */ 7171 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8), /* [19] enum64 */ 7172 BTF_ENUM64_ENC(NAME_TBD, 0, 0), 7173 BTF_ENUM64_ENC(NAME_TBD, 1, 1), 7174 BTF_END_RAW, 7175 }, 7176 BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R\0S\0T\0U"), 7177 }, 7178 .expect = { 7179 .raw_types = { 7180 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 8), /* [1] int */ 7181 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 4), /* [2] enum */ 7182 BTF_ENUM_ENC(NAME_TBD, 0), 7183 BTF_ENUM_ENC(NAME_TBD, 1), 7184 BTF_FWD_ENC(NAME_TBD, 1 /* union kind_flag */), /* [3] fwd */ 7185 BTF_TYPE_ARRAY_ENC(2, 1, 7), /* [4] array */ 7186 BTF_STRUCT_ENC(NAME_TBD, 1, 4), /* [5] struct */ 7187 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 7188 BTF_UNION_ENC(NAME_TBD, 1, 4), /* [6] union */ 7189 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 7190 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [7] typedef */ 7191 BTF_PTR_ENC(0), /* [8] ptr */ 7192 BTF_CONST_ENC(8), /* [9] const */ 7193 BTF_VOLATILE_ENC(8), /* [10] volatile */ 7194 BTF_RESTRICT_ENC(8), /* [11] restrict */ 7195 BTF_FUNC_PROTO_ENC(1, 2), /* [12] func_proto */ 7196 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 7197 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 18), 7198 BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */ 7199 BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [14] float */ 7200 BTF_DECL_TAG_ENC(NAME_TBD, 13, -1), /* [15] decl_tag */ 7201 BTF_DECL_TAG_ENC(NAME_TBD, 13, 1), /* [16] decl_tag */ 7202 BTF_DECL_TAG_ENC(NAME_TBD, 7, -1), /* [17] decl_tag */ 7203 BTF_TYPE_TAG_ENC(NAME_TBD, 8), /* [18] type_tag */ 7204 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8), /* [19] enum64 */ 7205 BTF_ENUM64_ENC(NAME_TBD, 0, 0), 7206 BTF_ENUM64_ENC(NAME_TBD, 1, 1), 7207 BTF_END_RAW, 7208 }, 7209 BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R\0S\0T\0U"), 7210 }, 7211 }, 7212 { 7213 .descr = "dedup: no int/float duplicates", 7214 .input = { 7215 .raw_types = { 7216 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 8), 7217 /* different name */ 7218 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 8), 7219 /* different encoding */ 7220 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_CHAR, 0, 32, 8), 7221 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_BOOL, 0, 32, 8), 7222 /* different bit offset */ 7223 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 8, 32, 8), 7224 /* different bit size */ 7225 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 27, 8), 7226 /* different byte size */ 7227 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 7228 /* all allowed sizes */ 7229 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 2), 7230 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 4), 7231 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 8), 7232 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 12), 7233 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 16), 7234 BTF_END_RAW, 7235 }, 7236 BTF_STR_SEC("\0int\0some other int\0float"), 7237 }, 7238 .expect = { 7239 .raw_types = { 7240 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 8), 7241 /* different name */ 7242 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 8), 7243 /* different encoding */ 7244 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_CHAR, 0, 32, 8), 7245 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_BOOL, 0, 32, 8), 7246 /* different bit offset */ 7247 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 8, 32, 8), 7248 /* different bit size */ 7249 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 27, 8), 7250 /* different byte size */ 7251 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 7252 /* all allowed sizes */ 7253 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 2), 7254 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 4), 7255 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 8), 7256 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 12), 7257 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 16), 7258 BTF_END_RAW, 7259 }, 7260 BTF_STR_SEC("\0int\0some other int\0float"), 7261 }, 7262 }, 7263 { 7264 .descr = "dedup: enum fwd resolution", 7265 .input = { 7266 .raw_types = { 7267 /* [1] fwd enum 'e1' before full enum */ 7268 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4), 7269 /* [2] full enum 'e1' after fwd */ 7270 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7271 BTF_ENUM_ENC(NAME_NTH(2), 123), 7272 /* [3] full enum 'e2' before fwd */ 7273 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7274 BTF_ENUM_ENC(NAME_NTH(4), 456), 7275 /* [4] fwd enum 'e2' after full enum */ 7276 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4), 7277 /* [5] fwd enum with different size, size does not matter for fwd */ 7278 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 1), 7279 /* [6] incompatible full enum with different value */ 7280 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7281 BTF_ENUM_ENC(NAME_NTH(2), 321), 7282 BTF_END_RAW, 7283 }, 7284 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), 7285 }, 7286 .expect = { 7287 .raw_types = { 7288 /* [1] full enum 'e1' */ 7289 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7290 BTF_ENUM_ENC(NAME_NTH(2), 123), 7291 /* [2] full enum 'e2' */ 7292 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7293 BTF_ENUM_ENC(NAME_NTH(4), 456), 7294 /* [3] incompatible full enum with different value */ 7295 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7296 BTF_ENUM_ENC(NAME_NTH(2), 321), 7297 BTF_END_RAW, 7298 }, 7299 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), 7300 }, 7301 }, 7302 { 7303 .descr = "dedup: datasec and vars pass-through", 7304 .input = { 7305 .raw_types = { 7306 /* int */ 7307 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7308 /* static int t */ 7309 BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [2] */ 7310 /* .bss section */ /* [3] */ 7311 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 7312 BTF_VAR_SECINFO_ENC(2, 0, 4), 7313 /* int, referenced from [5] */ 7314 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [4] */ 7315 /* another static int t */ 7316 BTF_VAR_ENC(NAME_NTH(2), 4, 0), /* [5] */ 7317 /* another .bss section */ /* [6] */ 7318 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 7319 BTF_VAR_SECINFO_ENC(5, 0, 4), 7320 BTF_END_RAW, 7321 }, 7322 BTF_STR_SEC("\0.bss\0t"), 7323 }, 7324 .expect = { 7325 .raw_types = { 7326 /* int */ 7327 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7328 /* static int t */ 7329 BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [2] */ 7330 /* .bss section */ /* [3] */ 7331 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 7332 BTF_VAR_SECINFO_ENC(2, 0, 4), 7333 /* another static int t */ 7334 BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [4] */ 7335 /* another .bss section */ /* [5] */ 7336 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 7337 BTF_VAR_SECINFO_ENC(4, 0, 4), 7338 BTF_END_RAW, 7339 }, 7340 BTF_STR_SEC("\0.bss\0t"), 7341 }, 7342 .opts = { 7343 .force_collisions = true 7344 }, 7345 }, 7346 { 7347 .descr = "dedup: func/func_arg/var tags", 7348 .input = { 7349 .raw_types = { 7350 /* int */ 7351 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7352 /* static int t */ 7353 BTF_VAR_ENC(NAME_NTH(1), 1, 0), /* [2] */ 7354 /* void f(int a1, int a2) */ 7355 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ 7356 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), 7357 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1), 7358 BTF_FUNC_ENC(NAME_NTH(4), 3), /* [4] */ 7359 /* tag -> t */ 7360 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */ 7361 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [6] */ 7362 /* tag -> func */ 7363 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [7] */ 7364 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [8] */ 7365 /* tag -> func arg a1 */ 7366 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [9] */ 7367 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [10] */ 7368 BTF_END_RAW, 7369 }, 7370 BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"), 7371 }, 7372 .expect = { 7373 .raw_types = { 7374 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7375 BTF_VAR_ENC(NAME_NTH(1), 1, 0), /* [2] */ 7376 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ 7377 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), 7378 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1), 7379 BTF_FUNC_ENC(NAME_NTH(4), 3), /* [4] */ 7380 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */ 7381 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [6] */ 7382 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [7] */ 7383 BTF_END_RAW, 7384 }, 7385 BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"), 7386 }, 7387 }, 7388 { 7389 .descr = "dedup: func/func_param tags", 7390 .input = { 7391 .raw_types = { 7392 /* int */ 7393 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7394 /* void f(int a1, int a2) */ 7395 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ 7396 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1), 7397 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), 7398 BTF_FUNC_ENC(NAME_NTH(3), 2), /* [3] */ 7399 /* void f(int a1, int a2) */ 7400 BTF_FUNC_PROTO_ENC(0, 2), /* [4] */ 7401 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1), 7402 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), 7403 BTF_FUNC_ENC(NAME_NTH(3), 4), /* [5] */ 7404 /* tag -> f: tag1, tag2 */ 7405 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [6] */ 7406 BTF_DECL_TAG_ENC(NAME_NTH(5), 3, -1), /* [7] */ 7407 /* tag -> f/a2: tag1, tag2 */ 7408 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [8] */ 7409 BTF_DECL_TAG_ENC(NAME_NTH(5), 3, 1), /* [9] */ 7410 /* tag -> f: tag1, tag3 */ 7411 BTF_DECL_TAG_ENC(NAME_NTH(4), 5, -1), /* [10] */ 7412 BTF_DECL_TAG_ENC(NAME_NTH(6), 5, -1), /* [11] */ 7413 /* tag -> f/a2: tag1, tag3 */ 7414 BTF_DECL_TAG_ENC(NAME_NTH(4), 5, 1), /* [12] */ 7415 BTF_DECL_TAG_ENC(NAME_NTH(6), 5, 1), /* [13] */ 7416 BTF_END_RAW, 7417 }, 7418 BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"), 7419 }, 7420 .expect = { 7421 .raw_types = { 7422 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7423 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ 7424 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1), 7425 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), 7426 BTF_FUNC_ENC(NAME_NTH(3), 2), /* [3] */ 7427 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [4] */ 7428 BTF_DECL_TAG_ENC(NAME_NTH(5), 3, -1), /* [5] */ 7429 BTF_DECL_TAG_ENC(NAME_NTH(6), 3, -1), /* [6] */ 7430 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [7] */ 7431 BTF_DECL_TAG_ENC(NAME_NTH(5), 3, 1), /* [8] */ 7432 BTF_DECL_TAG_ENC(NAME_NTH(6), 3, 1), /* [9] */ 7433 BTF_END_RAW, 7434 }, 7435 BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"), 7436 }, 7437 }, 7438 { 7439 .descr = "dedup: struct/struct_member tags", 7440 .input = { 7441 .raw_types = { 7442 /* int */ 7443 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7444 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [2] */ 7445 BTF_MEMBER_ENC(NAME_NTH(2), 1, 0), 7446 BTF_MEMBER_ENC(NAME_NTH(3), 1, 32), 7447 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [3] */ 7448 BTF_MEMBER_ENC(NAME_NTH(2), 1, 0), 7449 BTF_MEMBER_ENC(NAME_NTH(3), 1, 32), 7450 /* tag -> t: tag1, tag2 */ 7451 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [4] */ 7452 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */ 7453 /* tag -> t/m2: tag1, tag2 */ 7454 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, 1), /* [6] */ 7455 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, 1), /* [7] */ 7456 /* tag -> t: tag1, tag3 */ 7457 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [8] */ 7458 BTF_DECL_TAG_ENC(NAME_NTH(6), 3, -1), /* [9] */ 7459 /* tag -> t/m2: tag1, tag3 */ 7460 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [10] */ 7461 BTF_DECL_TAG_ENC(NAME_NTH(6), 3, 1), /* [11] */ 7462 BTF_END_RAW, 7463 }, 7464 BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"), 7465 }, 7466 .expect = { 7467 .raw_types = { 7468 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7469 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [2] */ 7470 BTF_MEMBER_ENC(NAME_NTH(2), 1, 0), 7471 BTF_MEMBER_ENC(NAME_NTH(3), 1, 32), 7472 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [3] */ 7473 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [4] */ 7474 BTF_DECL_TAG_ENC(NAME_NTH(6), 2, -1), /* [5] */ 7475 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, 1), /* [6] */ 7476 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, 1), /* [7] */ 7477 BTF_DECL_TAG_ENC(NAME_NTH(6), 2, 1), /* [8] */ 7478 BTF_END_RAW, 7479 }, 7480 BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"), 7481 }, 7482 }, 7483 { 7484 .descr = "dedup: typedef tags", 7485 .input = { 7486 .raw_types = { 7487 /* int */ 7488 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7489 BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [2] */ 7490 BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [3] */ 7491 /* tag -> t: tag1, tag2 */ 7492 BTF_DECL_TAG_ENC(NAME_NTH(2), 2, -1), /* [4] */ 7493 BTF_DECL_TAG_ENC(NAME_NTH(3), 2, -1), /* [5] */ 7494 /* tag -> t: tag1, tag3 */ 7495 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [6] */ 7496 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [7] */ 7497 BTF_END_RAW, 7498 }, 7499 BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"), 7500 }, 7501 .expect = { 7502 .raw_types = { 7503 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7504 BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [2] */ 7505 BTF_DECL_TAG_ENC(NAME_NTH(2), 2, -1), /* [3] */ 7506 BTF_DECL_TAG_ENC(NAME_NTH(3), 2, -1), /* [4] */ 7507 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [5] */ 7508 BTF_END_RAW, 7509 }, 7510 BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"), 7511 }, 7512 }, 7513 { 7514 .descr = "dedup: btf_type_tag #1", 7515 .input = { 7516 .raw_types = { 7517 /* ptr -> tag2 -> tag1 -> int */ 7518 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7519 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7520 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ 7521 BTF_PTR_ENC(3), /* [4] */ 7522 /* ptr -> tag2 -> tag1 -> int */ 7523 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [5] */ 7524 BTF_TYPE_TAG_ENC(NAME_NTH(2), 5), /* [6] */ 7525 BTF_PTR_ENC(6), /* [7] */ 7526 /* ptr -> tag1 -> int */ 7527 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [8] */ 7528 BTF_PTR_ENC(8), /* [9] */ 7529 BTF_END_RAW, 7530 }, 7531 BTF_STR_SEC("\0tag1\0tag2"), 7532 }, 7533 .expect = { 7534 .raw_types = { 7535 /* ptr -> tag2 -> tag1 -> int */ 7536 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7537 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7538 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ 7539 BTF_PTR_ENC(3), /* [4] */ 7540 /* ptr -> tag1 -> int */ 7541 BTF_PTR_ENC(2), /* [5] */ 7542 BTF_END_RAW, 7543 }, 7544 BTF_STR_SEC("\0tag1\0tag2"), 7545 }, 7546 }, 7547 { 7548 .descr = "dedup: btf_type_tag #2", 7549 .input = { 7550 .raw_types = { 7551 /* ptr -> tag2 -> tag1 -> int */ 7552 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7553 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7554 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ 7555 BTF_PTR_ENC(3), /* [4] */ 7556 /* ptr -> tag2 -> int */ 7557 BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */ 7558 BTF_PTR_ENC(5), /* [6] */ 7559 BTF_END_RAW, 7560 }, 7561 BTF_STR_SEC("\0tag1\0tag2"), 7562 }, 7563 .expect = { 7564 .raw_types = { 7565 /* ptr -> tag2 -> tag1 -> int */ 7566 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7567 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7568 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ 7569 BTF_PTR_ENC(3), /* [4] */ 7570 /* ptr -> tag2 -> int */ 7571 BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */ 7572 BTF_PTR_ENC(5), /* [6] */ 7573 BTF_END_RAW, 7574 }, 7575 BTF_STR_SEC("\0tag1\0tag2"), 7576 }, 7577 }, 7578 { 7579 .descr = "dedup: btf_type_tag #3", 7580 .input = { 7581 .raw_types = { 7582 /* ptr -> tag2 -> tag1 -> int */ 7583 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7584 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7585 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ 7586 BTF_PTR_ENC(3), /* [4] */ 7587 /* ptr -> tag1 -> tag2 -> int */ 7588 BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */ 7589 BTF_TYPE_TAG_ENC(NAME_NTH(1), 5), /* [6] */ 7590 BTF_PTR_ENC(6), /* [7] */ 7591 BTF_END_RAW, 7592 }, 7593 BTF_STR_SEC("\0tag1\0tag2"), 7594 }, 7595 .expect = { 7596 .raw_types = { 7597 /* ptr -> tag2 -> tag1 -> int */ 7598 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7599 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7600 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ 7601 BTF_PTR_ENC(3), /* [4] */ 7602 /* ptr -> tag1 -> tag2 -> int */ 7603 BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */ 7604 BTF_TYPE_TAG_ENC(NAME_NTH(1), 5), /* [6] */ 7605 BTF_PTR_ENC(6), /* [7] */ 7606 BTF_END_RAW, 7607 }, 7608 BTF_STR_SEC("\0tag1\0tag2"), 7609 }, 7610 }, 7611 { 7612 .descr = "dedup: btf_type_tag #4", 7613 .input = { 7614 .raw_types = { 7615 /* ptr -> tag1 -> int */ 7616 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7617 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7618 BTF_PTR_ENC(2), /* [3] */ 7619 /* ptr -> tag1 -> long */ 7620 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8), /* [4] */ 7621 BTF_TYPE_TAG_ENC(NAME_NTH(1), 4), /* [5] */ 7622 BTF_PTR_ENC(5), /* [6] */ 7623 BTF_END_RAW, 7624 }, 7625 BTF_STR_SEC("\0tag1"), 7626 }, 7627 .expect = { 7628 .raw_types = { 7629 /* ptr -> tag1 -> int */ 7630 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7631 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7632 BTF_PTR_ENC(2), /* [3] */ 7633 /* ptr -> tag1 -> long */ 7634 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8), /* [4] */ 7635 BTF_TYPE_TAG_ENC(NAME_NTH(1), 4), /* [5] */ 7636 BTF_PTR_ENC(5), /* [6] */ 7637 BTF_END_RAW, 7638 }, 7639 BTF_STR_SEC("\0tag1"), 7640 }, 7641 }, 7642 { 7643 .descr = "dedup: btf_type_tag #5, struct", 7644 .input = { 7645 .raw_types = { 7646 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7647 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7648 BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4), /* [3] */ 7649 BTF_MEMBER_ENC(NAME_NTH(3), 2, BTF_MEMBER_OFFSET(0, 0)), 7650 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [4] */ 7651 BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4), /* [5] */ 7652 BTF_MEMBER_ENC(NAME_NTH(3), 4, BTF_MEMBER_OFFSET(0, 0)), 7653 BTF_END_RAW, 7654 }, 7655 BTF_STR_SEC("\0tag1\0t\0m"), 7656 }, 7657 .expect = { 7658 .raw_types = { 7659 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 7660 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ 7661 BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4), /* [3] */ 7662 BTF_MEMBER_ENC(NAME_NTH(3), 2, BTF_MEMBER_OFFSET(0, 0)), 7663 BTF_END_RAW, 7664 }, 7665 BTF_STR_SEC("\0tag1\0t\0m"), 7666 }, 7667 }, 7668 { 7669 .descr = "dedup: enum64, standalone", 7670 .input = { 7671 .raw_types = { 7672 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7673 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), 7674 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7675 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), 7676 BTF_END_RAW, 7677 }, 7678 BTF_STR_SEC("\0e1\0e1_val"), 7679 }, 7680 .expect = { 7681 .raw_types = { 7682 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7683 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), 7684 BTF_END_RAW, 7685 }, 7686 BTF_STR_SEC("\0e1\0e1_val"), 7687 }, 7688 }, 7689 { 7690 .descr = "dedup: enum64, fwd resolution", 7691 .input = { 7692 .raw_types = { 7693 /* [1] fwd enum64 'e1' before full enum */ 7694 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8), 7695 /* [2] full enum64 'e1' after fwd */ 7696 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7697 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), 7698 /* [3] full enum64 'e2' before fwd */ 7699 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7700 BTF_ENUM64_ENC(NAME_NTH(4), 0, 456), 7701 /* [4] fwd enum64 'e2' after full enum */ 7702 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8), 7703 /* [5] incompatible full enum64 with different value */ 7704 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7705 BTF_ENUM64_ENC(NAME_NTH(2), 0, 321), 7706 BTF_END_RAW, 7707 }, 7708 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), 7709 }, 7710 .expect = { 7711 .raw_types = { 7712 /* [1] full enum64 'e1' */ 7713 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7714 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), 7715 /* [2] full enum64 'e2' */ 7716 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7717 BTF_ENUM64_ENC(NAME_NTH(4), 0, 456), 7718 /* [3] incompatible full enum64 with different value */ 7719 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7720 BTF_ENUM64_ENC(NAME_NTH(2), 0, 321), 7721 BTF_END_RAW, 7722 }, 7723 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), 7724 }, 7725 }, 7726 { 7727 .descr = "dedup: enum and enum64, no dedup", 7728 .input = { 7729 .raw_types = { 7730 /* [1] enum 'e1' */ 7731 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7732 BTF_ENUM_ENC(NAME_NTH(2), 1), 7733 /* [2] enum64 'e1' */ 7734 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 4), 7735 BTF_ENUM64_ENC(NAME_NTH(2), 1, 0), 7736 BTF_END_RAW, 7737 }, 7738 BTF_STR_SEC("\0e1\0e1_val"), 7739 }, 7740 .expect = { 7741 .raw_types = { 7742 /* [1] enum 'e1' */ 7743 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7744 BTF_ENUM_ENC(NAME_NTH(2), 1), 7745 /* [2] enum64 'e1' */ 7746 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 4), 7747 BTF_ENUM64_ENC(NAME_NTH(2), 1, 0), 7748 BTF_END_RAW, 7749 }, 7750 BTF_STR_SEC("\0e1\0e1_val"), 7751 }, 7752 }, 7753 { 7754 .descr = "dedup: enum of different size: no dedup", 7755 .input = { 7756 .raw_types = { 7757 /* [1] enum 'e1' */ 7758 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7759 BTF_ENUM_ENC(NAME_NTH(2), 1), 7760 /* [2] enum 'e1' */ 7761 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 2), 7762 BTF_ENUM_ENC(NAME_NTH(2), 1), 7763 BTF_END_RAW, 7764 }, 7765 BTF_STR_SEC("\0e1\0e1_val"), 7766 }, 7767 .expect = { 7768 .raw_types = { 7769 /* [1] enum 'e1' */ 7770 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7771 BTF_ENUM_ENC(NAME_NTH(2), 1), 7772 /* [2] enum 'e1' */ 7773 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 2), 7774 BTF_ENUM_ENC(NAME_NTH(2), 1), 7775 BTF_END_RAW, 7776 }, 7777 BTF_STR_SEC("\0e1\0e1_val"), 7778 }, 7779 }, 7780 { 7781 .descr = "dedup: enum fwd to enum64", 7782 .input = { 7783 .raw_types = { 7784 /* [1] enum64 'e1' */ 7785 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7786 BTF_ENUM64_ENC(NAME_NTH(2), 1, 0), 7787 /* [2] enum 'e1' fwd */ 7788 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4), 7789 /* [3] typedef enum 'e1' td */ 7790 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 2), 7791 BTF_END_RAW, 7792 }, 7793 BTF_STR_SEC("\0e1\0e1_val\0td"), 7794 }, 7795 .expect = { 7796 .raw_types = { 7797 /* [1] enum64 'e1' */ 7798 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), 7799 BTF_ENUM64_ENC(NAME_NTH(2), 1, 0), 7800 /* [2] typedef enum 'e1' td */ 7801 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 1), 7802 BTF_END_RAW, 7803 }, 7804 BTF_STR_SEC("\0e1\0e1_val\0td"), 7805 }, 7806 }, 7807 { 7808 .descr = "dedup: enum64 fwd to enum", 7809 .input = { 7810 .raw_types = { 7811 /* [1] enum 'e1' */ 7812 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7813 BTF_ENUM_ENC(NAME_NTH(2), 1), 7814 /* [2] enum64 'e1' fwd */ 7815 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8), 7816 /* [3] typedef enum 'e1' td */ 7817 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 2), 7818 BTF_END_RAW, 7819 }, 7820 BTF_STR_SEC("\0e1\0e1_val\0td"), 7821 }, 7822 .expect = { 7823 .raw_types = { 7824 /* [1] enum 'e1' */ 7825 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 7826 BTF_ENUM_ENC(NAME_NTH(2), 1), 7827 /* [2] typedef enum 'e1' td */ 7828 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 1), 7829 BTF_END_RAW, 7830 }, 7831 BTF_STR_SEC("\0e1\0e1_val\0td"), 7832 }, 7833 }, 7834 { 7835 .descr = "dedup: standalone fwd declaration struct", 7836 /* 7837 * Verify that CU1:foo and CU2:foo would be unified and that 7838 * typedef/ptr would be updated to point to CU1:foo. 7839 * 7840 * // CU 1: 7841 * struct foo { int x; }; 7842 * 7843 * // CU 2: 7844 * struct foo; 7845 * typedef struct foo *foo_ptr; 7846 */ 7847 .input = { 7848 .raw_types = { 7849 /* CU 1 */ 7850 BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ 7851 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7852 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 7853 /* CU 2 */ 7854 BTF_FWD_ENC(NAME_NTH(1), 0), /* [3] */ 7855 BTF_PTR_ENC(3), /* [4] */ 7856 BTF_TYPEDEF_ENC(NAME_NTH(3), 4), /* [5] */ 7857 BTF_END_RAW, 7858 }, 7859 BTF_STR_SEC("\0foo\0x\0foo_ptr"), 7860 }, 7861 .expect = { 7862 .raw_types = { 7863 BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ 7864 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7865 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 7866 BTF_PTR_ENC(1), /* [3] */ 7867 BTF_TYPEDEF_ENC(NAME_NTH(3), 3), /* [4] */ 7868 BTF_END_RAW, 7869 }, 7870 BTF_STR_SEC("\0foo\0x\0foo_ptr"), 7871 }, 7872 }, 7873 { 7874 .descr = "dedup: standalone fwd declaration union", 7875 /* 7876 * Verify that CU1:foo and CU2:foo would be unified and that 7877 * typedef/ptr would be updated to point to CU1:foo. 7878 * Same as "dedup: standalone fwd declaration struct" but for unions. 7879 * 7880 * // CU 1: 7881 * union foo { int x; }; 7882 * 7883 * // CU 2: 7884 * union foo; 7885 * typedef union foo *foo_ptr; 7886 */ 7887 .input = { 7888 .raw_types = { 7889 /* CU 1 */ 7890 BTF_UNION_ENC(NAME_NTH(1), 1, 4), /* [1] */ 7891 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7892 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 7893 /* CU 2 */ 7894 BTF_FWD_ENC(NAME_TBD, 1), /* [3] */ 7895 BTF_PTR_ENC(3), /* [4] */ 7896 BTF_TYPEDEF_ENC(NAME_NTH(3), 4), /* [5] */ 7897 BTF_END_RAW, 7898 }, 7899 BTF_STR_SEC("\0foo\0x\0foo_ptr"), 7900 }, 7901 .expect = { 7902 .raw_types = { 7903 BTF_UNION_ENC(NAME_NTH(1), 1, 4), /* [1] */ 7904 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7905 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 7906 BTF_PTR_ENC(1), /* [3] */ 7907 BTF_TYPEDEF_ENC(NAME_NTH(3), 3), /* [4] */ 7908 BTF_END_RAW, 7909 }, 7910 BTF_STR_SEC("\0foo\0x\0foo_ptr"), 7911 }, 7912 }, 7913 { 7914 .descr = "dedup: standalone fwd declaration wrong kind", 7915 /* 7916 * Negative test for btf_dedup_resolve_fwds: 7917 * - CU1:foo is a struct, C2:foo is a union, thus CU2:foo is not deduped; 7918 * - typedef/ptr should remain unchanged as well. 7919 * 7920 * // CU 1: 7921 * struct foo { int x; }; 7922 * 7923 * // CU 2: 7924 * union foo; 7925 * typedef union foo *foo_ptr; 7926 */ 7927 .input = { 7928 .raw_types = { 7929 /* CU 1 */ 7930 BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ 7931 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7932 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 7933 /* CU 2 */ 7934 BTF_FWD_ENC(NAME_NTH(3), 1), /* [3] */ 7935 BTF_PTR_ENC(3), /* [4] */ 7936 BTF_TYPEDEF_ENC(NAME_NTH(3), 4), /* [5] */ 7937 BTF_END_RAW, 7938 }, 7939 BTF_STR_SEC("\0foo\0x\0foo_ptr"), 7940 }, 7941 .expect = { 7942 .raw_types = { 7943 /* CU 1 */ 7944 BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ 7945 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7946 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 7947 /* CU 2 */ 7948 BTF_FWD_ENC(NAME_NTH(3), 1), /* [3] */ 7949 BTF_PTR_ENC(3), /* [4] */ 7950 BTF_TYPEDEF_ENC(NAME_NTH(3), 4), /* [5] */ 7951 BTF_END_RAW, 7952 }, 7953 BTF_STR_SEC("\0foo\0x\0foo_ptr"), 7954 }, 7955 }, 7956 { 7957 .descr = "dedup: standalone fwd declaration name conflict", 7958 /* 7959 * Negative test for btf_dedup_resolve_fwds: 7960 * - two candidates for CU2:foo dedup, thus it is unchanged; 7961 * - typedef/ptr should remain unchanged as well. 7962 * 7963 * // CU 1: 7964 * struct foo { int x; }; 7965 * 7966 * // CU 2: 7967 * struct foo; 7968 * typedef struct foo *foo_ptr; 7969 * 7970 * // CU 3: 7971 * struct foo { int x; int y; }; 7972 */ 7973 .input = { 7974 .raw_types = { 7975 /* CU 1 */ 7976 BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ 7977 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7978 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 7979 /* CU 2 */ 7980 BTF_FWD_ENC(NAME_NTH(1), 0), /* [3] */ 7981 BTF_PTR_ENC(3), /* [4] */ 7982 BTF_TYPEDEF_ENC(NAME_NTH(4), 4), /* [5] */ 7983 /* CU 3 */ 7984 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [6] */ 7985 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7986 BTF_MEMBER_ENC(NAME_NTH(3), 2, 0), 7987 BTF_END_RAW, 7988 }, 7989 BTF_STR_SEC("\0foo\0x\0y\0foo_ptr"), 7990 }, 7991 .expect = { 7992 .raw_types = { 7993 /* CU 1 */ 7994 BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ 7995 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 7996 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ 7997 /* CU 2 */ 7998 BTF_FWD_ENC(NAME_NTH(1), 0), /* [3] */ 7999 BTF_PTR_ENC(3), /* [4] */ 8000 BTF_TYPEDEF_ENC(NAME_NTH(4), 4), /* [5] */ 8001 /* CU 3 */ 8002 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [6] */ 8003 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 8004 BTF_MEMBER_ENC(NAME_NTH(3), 2, 0), 8005 BTF_END_RAW, 8006 }, 8007 BTF_STR_SEC("\0foo\0x\0y\0foo_ptr"), 8008 }, 8009 }, 8010 }; 8011 8012 static int btf_type_size(const struct btf_type *t) 8013 { 8014 int base_size = sizeof(struct btf_type); 8015 __u16 vlen = BTF_INFO_VLEN(t->info); 8016 __u16 kind = BTF_INFO_KIND(t->info); 8017 8018 switch (kind) { 8019 case BTF_KIND_FWD: 8020 case BTF_KIND_CONST: 8021 case BTF_KIND_VOLATILE: 8022 case BTF_KIND_RESTRICT: 8023 case BTF_KIND_PTR: 8024 case BTF_KIND_TYPEDEF: 8025 case BTF_KIND_FUNC: 8026 case BTF_KIND_FLOAT: 8027 case BTF_KIND_TYPE_TAG: 8028 return base_size; 8029 case BTF_KIND_INT: 8030 return base_size + sizeof(__u32); 8031 case BTF_KIND_ENUM: 8032 return base_size + vlen * sizeof(struct btf_enum); 8033 case BTF_KIND_ENUM64: 8034 return base_size + vlen * sizeof(struct btf_enum64); 8035 case BTF_KIND_ARRAY: 8036 return base_size + sizeof(struct btf_array); 8037 case BTF_KIND_STRUCT: 8038 case BTF_KIND_UNION: 8039 return base_size + vlen * sizeof(struct btf_member); 8040 case BTF_KIND_FUNC_PROTO: 8041 return base_size + vlen * sizeof(struct btf_param); 8042 case BTF_KIND_VAR: 8043 return base_size + sizeof(struct btf_var); 8044 case BTF_KIND_DATASEC: 8045 return base_size + vlen * sizeof(struct btf_var_secinfo); 8046 case BTF_KIND_DECL_TAG: 8047 return base_size + sizeof(struct btf_decl_tag); 8048 default: 8049 fprintf(stderr, "Unsupported BTF_KIND:%u\n", kind); 8050 return -EINVAL; 8051 } 8052 } 8053 8054 static void dump_btf_strings(const char *strs, __u32 len) 8055 { 8056 const char *cur = strs; 8057 int i = 0; 8058 8059 while (cur < strs + len) { 8060 fprintf(stderr, "string #%d: '%s'\n", i, cur); 8061 cur += strlen(cur) + 1; 8062 i++; 8063 } 8064 } 8065 8066 static void do_test_dedup(unsigned int test_num) 8067 { 8068 struct btf_dedup_test *test = &dedup_tests[test_num - 1]; 8069 __u32 test_nr_types, expect_nr_types, test_btf_size, expect_btf_size; 8070 const struct btf_header *test_hdr, *expect_hdr; 8071 struct btf *test_btf = NULL, *expect_btf = NULL; 8072 const void *test_btf_data, *expect_btf_data; 8073 const char *ret_test_next_str, *ret_expect_next_str; 8074 const char *test_strs, *expect_strs; 8075 const char *test_str_cur; 8076 const char *expect_str_cur, *expect_str_end; 8077 unsigned int raw_btf_size; 8078 void *raw_btf; 8079 int err = 0, i; 8080 8081 if (!test__start_subtest(test->descr)) 8082 return; 8083 8084 raw_btf = btf_raw_create(&hdr_tmpl, test->input.raw_types, 8085 test->input.str_sec, test->input.str_sec_size, 8086 &raw_btf_size, &ret_test_next_str); 8087 if (!raw_btf) 8088 return; 8089 8090 test_btf = btf__new((__u8 *)raw_btf, raw_btf_size); 8091 err = libbpf_get_error(test_btf); 8092 free(raw_btf); 8093 if (CHECK(err, "invalid test_btf errno:%d", err)) { 8094 err = -1; 8095 goto done; 8096 } 8097 8098 raw_btf = btf_raw_create(&hdr_tmpl, test->expect.raw_types, 8099 test->expect.str_sec, 8100 test->expect.str_sec_size, 8101 &raw_btf_size, &ret_expect_next_str); 8102 if (!raw_btf) 8103 return; 8104 expect_btf = btf__new((__u8 *)raw_btf, raw_btf_size); 8105 err = libbpf_get_error(expect_btf); 8106 free(raw_btf); 8107 if (CHECK(err, "invalid expect_btf errno:%d", err)) { 8108 err = -1; 8109 goto done; 8110 } 8111 8112 test->opts.sz = sizeof(test->opts); 8113 err = btf__dedup(test_btf, &test->opts); 8114 if (CHECK(err, "btf_dedup failed errno:%d", err)) { 8115 err = -1; 8116 goto done; 8117 } 8118 8119 test_btf_data = btf__raw_data(test_btf, &test_btf_size); 8120 expect_btf_data = btf__raw_data(expect_btf, &expect_btf_size); 8121 if (CHECK(test_btf_size != expect_btf_size, 8122 "test_btf_size:%u != expect_btf_size:%u", 8123 test_btf_size, expect_btf_size)) { 8124 err = -1; 8125 goto done; 8126 } 8127 8128 test_hdr = test_btf_data; 8129 test_strs = test_btf_data + sizeof(*test_hdr) + test_hdr->str_off; 8130 expect_hdr = expect_btf_data; 8131 expect_strs = expect_btf_data + sizeof(*test_hdr) + expect_hdr->str_off; 8132 if (CHECK(test_hdr->str_len != expect_hdr->str_len, 8133 "test_hdr->str_len:%u != expect_hdr->str_len:%u", 8134 test_hdr->str_len, expect_hdr->str_len)) { 8135 fprintf(stderr, "\ntest strings:\n"); 8136 dump_btf_strings(test_strs, test_hdr->str_len); 8137 fprintf(stderr, "\nexpected strings:\n"); 8138 dump_btf_strings(expect_strs, expect_hdr->str_len); 8139 err = -1; 8140 goto done; 8141 } 8142 8143 expect_str_cur = expect_strs; 8144 expect_str_end = expect_strs + expect_hdr->str_len; 8145 while (expect_str_cur < expect_str_end) { 8146 size_t test_len, expect_len; 8147 int off; 8148 8149 off = btf__find_str(test_btf, expect_str_cur); 8150 if (CHECK(off < 0, "exp str '%s' not found: %d\n", expect_str_cur, off)) { 8151 err = -1; 8152 goto done; 8153 } 8154 test_str_cur = btf__str_by_offset(test_btf, off); 8155 8156 test_len = strlen(test_str_cur); 8157 expect_len = strlen(expect_str_cur); 8158 if (CHECK(test_len != expect_len, 8159 "test_len:%zu != expect_len:%zu " 8160 "(test_str:%s, expect_str:%s)", 8161 test_len, expect_len, test_str_cur, expect_str_cur)) { 8162 err = -1; 8163 goto done; 8164 } 8165 if (CHECK(strcmp(test_str_cur, expect_str_cur), 8166 "test_str:%s != expect_str:%s", 8167 test_str_cur, expect_str_cur)) { 8168 err = -1; 8169 goto done; 8170 } 8171 expect_str_cur += expect_len + 1; 8172 } 8173 8174 test_nr_types = btf__type_cnt(test_btf); 8175 expect_nr_types = btf__type_cnt(expect_btf); 8176 if (CHECK(test_nr_types != expect_nr_types, 8177 "test_nr_types:%u != expect_nr_types:%u", 8178 test_nr_types, expect_nr_types)) { 8179 err = -1; 8180 goto done; 8181 } 8182 8183 for (i = 1; i < test_nr_types; i++) { 8184 const struct btf_type *test_type, *expect_type; 8185 int test_size, expect_size; 8186 8187 test_type = btf__type_by_id(test_btf, i); 8188 expect_type = btf__type_by_id(expect_btf, i); 8189 test_size = btf_type_size(test_type); 8190 expect_size = btf_type_size(expect_type); 8191 8192 if (CHECK(test_size != expect_size, 8193 "type #%d: test_size:%d != expect_size:%u", 8194 i, test_size, expect_size)) { 8195 err = -1; 8196 goto done; 8197 } 8198 if (CHECK(btf_kind(test_type) != btf_kind(expect_type), 8199 "type %d kind: exp %d != got %u\n", 8200 i, btf_kind(expect_type), btf_kind(test_type))) { 8201 err = -1; 8202 goto done; 8203 } 8204 if (CHECK(test_type->info != expect_type->info, 8205 "type %d info: exp %d != got %u\n", 8206 i, expect_type->info, test_type->info)) { 8207 err = -1; 8208 goto done; 8209 } 8210 if (CHECK(test_type->size != expect_type->size, 8211 "type %d size/type: exp %d != got %u\n", 8212 i, expect_type->size, test_type->size)) { 8213 err = -1; 8214 goto done; 8215 } 8216 } 8217 8218 done: 8219 btf__free(test_btf); 8220 btf__free(expect_btf); 8221 } 8222 8223 void test_btf(void) 8224 { 8225 int i; 8226 8227 always_log = env.verbosity > VERBOSE_NONE; 8228 8229 for (i = 1; i <= ARRAY_SIZE(raw_tests); i++) 8230 do_test_raw(i); 8231 for (i = 1; i <= ARRAY_SIZE(get_info_tests); i++) 8232 do_test_get_info(i); 8233 for (i = 1; i <= ARRAY_SIZE(file_tests); i++) 8234 do_test_file(i); 8235 for (i = 1; i <= ARRAY_SIZE(info_raw_tests); i++) 8236 do_test_info_raw(i); 8237 for (i = 1; i <= ARRAY_SIZE(dedup_tests); i++) 8238 do_test_dedup(i); 8239 test_pprint(); 8240 } 8241