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