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 exeeds 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 exeeds 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 }; /* struct btf_raw_test raw_tests[] */ 3514 3515 static const char *get_next_str(const char *start, const char *end) 3516 { 3517 return start < end - 1 ? start + 1 : NULL; 3518 } 3519 3520 static int get_raw_sec_size(const __u32 *raw_types) 3521 { 3522 int i; 3523 3524 for (i = MAX_NR_RAW_U32 - 1; 3525 i >= 0 && raw_types[i] != BTF_END_RAW; 3526 i--) 3527 ; 3528 3529 return i < 0 ? i : i * sizeof(raw_types[0]); 3530 } 3531 3532 static void *btf_raw_create(const struct btf_header *hdr, 3533 const __u32 *raw_types, 3534 const char *str, 3535 unsigned int str_sec_size, 3536 unsigned int *btf_size, 3537 const char **ret_next_str) 3538 { 3539 const char *next_str = str, *end_str = str + str_sec_size; 3540 const char **strs_idx = NULL, **tmp_strs_idx; 3541 int strs_cap = 0, strs_cnt = 0, next_str_idx = 0; 3542 unsigned int size_needed, offset; 3543 struct btf_header *ret_hdr; 3544 int i, type_sec_size, err = 0; 3545 uint32_t *ret_types; 3546 void *raw_btf = NULL; 3547 3548 type_sec_size = get_raw_sec_size(raw_types); 3549 if (CHECK(type_sec_size < 0, "Cannot get nr_raw_types")) 3550 return NULL; 3551 3552 size_needed = sizeof(*hdr) + type_sec_size + str_sec_size; 3553 raw_btf = malloc(size_needed); 3554 if (CHECK(!raw_btf, "Cannot allocate memory for raw_btf")) 3555 return NULL; 3556 3557 /* Copy header */ 3558 memcpy(raw_btf, hdr, sizeof(*hdr)); 3559 offset = sizeof(*hdr); 3560 3561 /* Index strings */ 3562 while ((next_str = get_next_str(next_str, end_str))) { 3563 if (strs_cnt == strs_cap) { 3564 strs_cap += max(16, strs_cap / 2); 3565 tmp_strs_idx = realloc(strs_idx, 3566 sizeof(*strs_idx) * strs_cap); 3567 if (CHECK(!tmp_strs_idx, 3568 "Cannot allocate memory for strs_idx")) { 3569 err = -1; 3570 goto done; 3571 } 3572 strs_idx = tmp_strs_idx; 3573 } 3574 strs_idx[strs_cnt++] = next_str; 3575 next_str += strlen(next_str); 3576 } 3577 3578 /* Copy type section */ 3579 ret_types = raw_btf + offset; 3580 for (i = 0; i < type_sec_size / sizeof(raw_types[0]); i++) { 3581 if (raw_types[i] == NAME_TBD) { 3582 if (CHECK(next_str_idx == strs_cnt, 3583 "Error in getting next_str #%d", 3584 next_str_idx)) { 3585 err = -1; 3586 goto done; 3587 } 3588 ret_types[i] = strs_idx[next_str_idx++] - str; 3589 } else if (IS_NAME_NTH(raw_types[i])) { 3590 int idx = GET_NAME_NTH_IDX(raw_types[i]); 3591 3592 if (CHECK(idx <= 0 || idx > strs_cnt, 3593 "Error getting string #%d, strs_cnt:%d", 3594 idx, strs_cnt)) { 3595 err = -1; 3596 goto done; 3597 } 3598 ret_types[i] = strs_idx[idx-1] - str; 3599 } else { 3600 ret_types[i] = raw_types[i]; 3601 } 3602 } 3603 offset += type_sec_size; 3604 3605 /* Copy string section */ 3606 memcpy(raw_btf + offset, str, str_sec_size); 3607 3608 ret_hdr = (struct btf_header *)raw_btf; 3609 ret_hdr->type_len = type_sec_size; 3610 ret_hdr->str_off = type_sec_size; 3611 ret_hdr->str_len = str_sec_size; 3612 3613 *btf_size = size_needed; 3614 if (ret_next_str) 3615 *ret_next_str = 3616 next_str_idx < strs_cnt ? strs_idx[next_str_idx] : NULL; 3617 3618 done: 3619 if (err) { 3620 if (raw_btf) 3621 free(raw_btf); 3622 if (strs_idx) 3623 free(strs_idx); 3624 return NULL; 3625 } 3626 return raw_btf; 3627 } 3628 3629 static void do_test_raw(unsigned int test_num) 3630 { 3631 struct btf_raw_test *test = &raw_tests[test_num - 1]; 3632 struct bpf_create_map_attr create_attr = {}; 3633 int map_fd = -1, btf_fd = -1; 3634 unsigned int raw_btf_size; 3635 struct btf_header *hdr; 3636 void *raw_btf; 3637 int err; 3638 3639 if (!test__start_subtest(test->descr)) 3640 return; 3641 3642 raw_btf = btf_raw_create(&hdr_tmpl, 3643 test->raw_types, 3644 test->str_sec, 3645 test->str_sec_size, 3646 &raw_btf_size, NULL); 3647 if (!raw_btf) 3648 return; 3649 3650 hdr = raw_btf; 3651 3652 hdr->hdr_len = (int)hdr->hdr_len + test->hdr_len_delta; 3653 hdr->type_off = (int)hdr->type_off + test->type_off_delta; 3654 hdr->str_off = (int)hdr->str_off + test->str_off_delta; 3655 hdr->str_len = (int)hdr->str_len + test->str_len_delta; 3656 3657 *btf_log_buf = '\0'; 3658 btf_fd = bpf_load_btf(raw_btf, raw_btf_size, 3659 btf_log_buf, BTF_LOG_BUF_SIZE, 3660 always_log); 3661 free(raw_btf); 3662 3663 err = ((btf_fd == -1) != test->btf_load_err); 3664 if (CHECK(err, "btf_fd:%d test->btf_load_err:%u", 3665 btf_fd, test->btf_load_err) || 3666 CHECK(test->err_str && !strstr(btf_log_buf, test->err_str), 3667 "expected err_str:%s", test->err_str)) { 3668 err = -1; 3669 goto done; 3670 } 3671 3672 if (err || btf_fd == -1) 3673 goto done; 3674 3675 create_attr.name = test->map_name; 3676 create_attr.map_type = test->map_type; 3677 create_attr.key_size = test->key_size; 3678 create_attr.value_size = test->value_size; 3679 create_attr.max_entries = test->max_entries; 3680 create_attr.btf_fd = btf_fd; 3681 create_attr.btf_key_type_id = test->key_type_id; 3682 create_attr.btf_value_type_id = test->value_type_id; 3683 3684 map_fd = bpf_create_map_xattr(&create_attr); 3685 3686 err = ((map_fd == -1) != test->map_create_err); 3687 CHECK(err, "map_fd:%d test->map_create_err:%u", 3688 map_fd, test->map_create_err); 3689 3690 done: 3691 if (*btf_log_buf && (err || always_log)) 3692 fprintf(stderr, "\n%s", btf_log_buf); 3693 if (btf_fd != -1) 3694 close(btf_fd); 3695 if (map_fd != -1) 3696 close(map_fd); 3697 } 3698 3699 struct btf_get_info_test { 3700 const char *descr; 3701 const char *str_sec; 3702 __u32 raw_types[MAX_NR_RAW_U32]; 3703 __u32 str_sec_size; 3704 int btf_size_delta; 3705 int (*special_test)(unsigned int test_num); 3706 }; 3707 3708 static int test_big_btf_info(unsigned int test_num); 3709 static int test_btf_id(unsigned int test_num); 3710 3711 const struct btf_get_info_test get_info_tests[] = { 3712 { 3713 .descr = "== raw_btf_size+1", 3714 .raw_types = { 3715 /* int */ /* [1] */ 3716 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 3717 BTF_END_RAW, 3718 }, 3719 .str_sec = "", 3720 .str_sec_size = sizeof(""), 3721 .btf_size_delta = 1, 3722 }, 3723 { 3724 .descr = "== raw_btf_size-3", 3725 .raw_types = { 3726 /* int */ /* [1] */ 3727 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 3728 BTF_END_RAW, 3729 }, 3730 .str_sec = "", 3731 .str_sec_size = sizeof(""), 3732 .btf_size_delta = -3, 3733 }, 3734 { 3735 .descr = "Large bpf_btf_info", 3736 .raw_types = { 3737 /* int */ /* [1] */ 3738 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 3739 BTF_END_RAW, 3740 }, 3741 .str_sec = "", 3742 .str_sec_size = sizeof(""), 3743 .special_test = test_big_btf_info, 3744 }, 3745 { 3746 .descr = "BTF ID", 3747 .raw_types = { 3748 /* int */ /* [1] */ 3749 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), 3750 /* unsigned int */ /* [2] */ 3751 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), 3752 BTF_END_RAW, 3753 }, 3754 .str_sec = "", 3755 .str_sec_size = sizeof(""), 3756 .special_test = test_btf_id, 3757 }, 3758 }; 3759 3760 static int test_big_btf_info(unsigned int test_num) 3761 { 3762 const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; 3763 uint8_t *raw_btf = NULL, *user_btf = NULL; 3764 unsigned int raw_btf_size; 3765 struct { 3766 struct bpf_btf_info info; 3767 uint64_t garbage; 3768 } info_garbage; 3769 struct bpf_btf_info *info; 3770 int btf_fd = -1, err; 3771 uint32_t info_len; 3772 3773 raw_btf = btf_raw_create(&hdr_tmpl, 3774 test->raw_types, 3775 test->str_sec, 3776 test->str_sec_size, 3777 &raw_btf_size, NULL); 3778 3779 if (!raw_btf) 3780 return -1; 3781 3782 *btf_log_buf = '\0'; 3783 3784 user_btf = malloc(raw_btf_size); 3785 if (CHECK(!user_btf, "!user_btf")) { 3786 err = -1; 3787 goto done; 3788 } 3789 3790 btf_fd = bpf_load_btf(raw_btf, raw_btf_size, 3791 btf_log_buf, BTF_LOG_BUF_SIZE, 3792 always_log); 3793 if (CHECK(btf_fd == -1, "errno:%d", errno)) { 3794 err = -1; 3795 goto done; 3796 } 3797 3798 /* 3799 * GET_INFO should error out if the userspace info 3800 * has non zero tailing bytes. 3801 */ 3802 info = &info_garbage.info; 3803 memset(info, 0, sizeof(*info)); 3804 info_garbage.garbage = 0xdeadbeef; 3805 info_len = sizeof(info_garbage); 3806 info->btf = ptr_to_u64(user_btf); 3807 info->btf_size = raw_btf_size; 3808 3809 err = bpf_obj_get_info_by_fd(btf_fd, info, &info_len); 3810 if (CHECK(!err, "!err")) { 3811 err = -1; 3812 goto done; 3813 } 3814 3815 /* 3816 * GET_INFO should succeed even info_len is larger than 3817 * the kernel supported as long as tailing bytes are zero. 3818 * The kernel supported info len should also be returned 3819 * to userspace. 3820 */ 3821 info_garbage.garbage = 0; 3822 err = bpf_obj_get_info_by_fd(btf_fd, info, &info_len); 3823 if (CHECK(err || info_len != sizeof(*info), 3824 "err:%d errno:%d info_len:%u sizeof(*info):%zu", 3825 err, errno, info_len, sizeof(*info))) { 3826 err = -1; 3827 goto done; 3828 } 3829 3830 fprintf(stderr, "OK"); 3831 3832 done: 3833 if (*btf_log_buf && (err || always_log)) 3834 fprintf(stderr, "\n%s", btf_log_buf); 3835 3836 free(raw_btf); 3837 free(user_btf); 3838 3839 if (btf_fd != -1) 3840 close(btf_fd); 3841 3842 return err; 3843 } 3844 3845 static int test_btf_id(unsigned int test_num) 3846 { 3847 const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; 3848 struct bpf_create_map_attr create_attr = {}; 3849 uint8_t *raw_btf = NULL, *user_btf[2] = {}; 3850 int btf_fd[2] = {-1, -1}, map_fd = -1; 3851 struct bpf_map_info map_info = {}; 3852 struct bpf_btf_info info[2] = {}; 3853 unsigned int raw_btf_size; 3854 uint32_t info_len; 3855 int err, i, ret; 3856 3857 raw_btf = btf_raw_create(&hdr_tmpl, 3858 test->raw_types, 3859 test->str_sec, 3860 test->str_sec_size, 3861 &raw_btf_size, NULL); 3862 3863 if (!raw_btf) 3864 return -1; 3865 3866 *btf_log_buf = '\0'; 3867 3868 for (i = 0; i < 2; i++) { 3869 user_btf[i] = malloc(raw_btf_size); 3870 if (CHECK(!user_btf[i], "!user_btf[%d]", i)) { 3871 err = -1; 3872 goto done; 3873 } 3874 info[i].btf = ptr_to_u64(user_btf[i]); 3875 info[i].btf_size = raw_btf_size; 3876 } 3877 3878 btf_fd[0] = bpf_load_btf(raw_btf, raw_btf_size, 3879 btf_log_buf, BTF_LOG_BUF_SIZE, 3880 always_log); 3881 if (CHECK(btf_fd[0] == -1, "errno:%d", errno)) { 3882 err = -1; 3883 goto done; 3884 } 3885 3886 /* Test BPF_OBJ_GET_INFO_BY_ID on btf_id */ 3887 info_len = sizeof(info[0]); 3888 err = bpf_obj_get_info_by_fd(btf_fd[0], &info[0], &info_len); 3889 if (CHECK(err, "errno:%d", errno)) { 3890 err = -1; 3891 goto done; 3892 } 3893 3894 btf_fd[1] = bpf_btf_get_fd_by_id(info[0].id); 3895 if (CHECK(btf_fd[1] == -1, "errno:%d", errno)) { 3896 err = -1; 3897 goto done; 3898 } 3899 3900 ret = 0; 3901 err = bpf_obj_get_info_by_fd(btf_fd[1], &info[1], &info_len); 3902 if (CHECK(err || info[0].id != info[1].id || 3903 info[0].btf_size != info[1].btf_size || 3904 (ret = memcmp(user_btf[0], user_btf[1], info[0].btf_size)), 3905 "err:%d errno:%d id0:%u id1:%u btf_size0:%u btf_size1:%u memcmp:%d", 3906 err, errno, info[0].id, info[1].id, 3907 info[0].btf_size, info[1].btf_size, ret)) { 3908 err = -1; 3909 goto done; 3910 } 3911 3912 /* Test btf members in struct bpf_map_info */ 3913 create_attr.name = "test_btf_id"; 3914 create_attr.map_type = BPF_MAP_TYPE_ARRAY; 3915 create_attr.key_size = sizeof(int); 3916 create_attr.value_size = sizeof(unsigned int); 3917 create_attr.max_entries = 4; 3918 create_attr.btf_fd = btf_fd[0]; 3919 create_attr.btf_key_type_id = 1; 3920 create_attr.btf_value_type_id = 2; 3921 3922 map_fd = bpf_create_map_xattr(&create_attr); 3923 if (CHECK(map_fd == -1, "errno:%d", errno)) { 3924 err = -1; 3925 goto done; 3926 } 3927 3928 info_len = sizeof(map_info); 3929 err = bpf_obj_get_info_by_fd(map_fd, &map_info, &info_len); 3930 if (CHECK(err || map_info.btf_id != info[0].id || 3931 map_info.btf_key_type_id != 1 || map_info.btf_value_type_id != 2, 3932 "err:%d errno:%d info.id:%u btf_id:%u btf_key_type_id:%u btf_value_type_id:%u", 3933 err, errno, info[0].id, map_info.btf_id, map_info.btf_key_type_id, 3934 map_info.btf_value_type_id)) { 3935 err = -1; 3936 goto done; 3937 } 3938 3939 for (i = 0; i < 2; i++) { 3940 close(btf_fd[i]); 3941 btf_fd[i] = -1; 3942 } 3943 3944 /* Test BTF ID is removed from the kernel */ 3945 btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id); 3946 if (CHECK(btf_fd[0] == -1, "errno:%d", errno)) { 3947 err = -1; 3948 goto done; 3949 } 3950 close(btf_fd[0]); 3951 btf_fd[0] = -1; 3952 3953 /* The map holds the last ref to BTF and its btf_id */ 3954 close(map_fd); 3955 map_fd = -1; 3956 btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id); 3957 if (CHECK(btf_fd[0] != -1, "BTF lingers")) { 3958 err = -1; 3959 goto done; 3960 } 3961 3962 fprintf(stderr, "OK"); 3963 3964 done: 3965 if (*btf_log_buf && (err || always_log)) 3966 fprintf(stderr, "\n%s", btf_log_buf); 3967 3968 free(raw_btf); 3969 if (map_fd != -1) 3970 close(map_fd); 3971 for (i = 0; i < 2; i++) { 3972 free(user_btf[i]); 3973 if (btf_fd[i] != -1) 3974 close(btf_fd[i]); 3975 } 3976 3977 return err; 3978 } 3979 3980 static void do_test_get_info(unsigned int test_num) 3981 { 3982 const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; 3983 unsigned int raw_btf_size, user_btf_size, expected_nbytes; 3984 uint8_t *raw_btf = NULL, *user_btf = NULL; 3985 struct bpf_btf_info info = {}; 3986 int btf_fd = -1, err, ret; 3987 uint32_t info_len; 3988 3989 if (!test__start_subtest(test->descr)) 3990 return; 3991 3992 if (test->special_test) { 3993 err = test->special_test(test_num); 3994 if (CHECK(err, "failed: %d\n", err)) 3995 return; 3996 } 3997 3998 raw_btf = btf_raw_create(&hdr_tmpl, 3999 test->raw_types, 4000 test->str_sec, 4001 test->str_sec_size, 4002 &raw_btf_size, NULL); 4003 4004 if (!raw_btf) 4005 return; 4006 4007 *btf_log_buf = '\0'; 4008 4009 user_btf = malloc(raw_btf_size); 4010 if (CHECK(!user_btf, "!user_btf")) { 4011 err = -1; 4012 goto done; 4013 } 4014 4015 btf_fd = bpf_load_btf(raw_btf, raw_btf_size, 4016 btf_log_buf, BTF_LOG_BUF_SIZE, 4017 always_log); 4018 if (CHECK(btf_fd == -1, "errno:%d", errno)) { 4019 err = -1; 4020 goto done; 4021 } 4022 4023 user_btf_size = (int)raw_btf_size + test->btf_size_delta; 4024 expected_nbytes = min(raw_btf_size, user_btf_size); 4025 if (raw_btf_size > expected_nbytes) 4026 memset(user_btf + expected_nbytes, 0xff, 4027 raw_btf_size - expected_nbytes); 4028 4029 info_len = sizeof(info); 4030 info.btf = ptr_to_u64(user_btf); 4031 info.btf_size = user_btf_size; 4032 4033 ret = 0; 4034 err = bpf_obj_get_info_by_fd(btf_fd, &info, &info_len); 4035 if (CHECK(err || !info.id || info_len != sizeof(info) || 4036 info.btf_size != raw_btf_size || 4037 (ret = memcmp(raw_btf, user_btf, expected_nbytes)), 4038 "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", 4039 err, errno, info.id, info_len, sizeof(info), 4040 raw_btf_size, info.btf_size, expected_nbytes, ret)) { 4041 err = -1; 4042 goto done; 4043 } 4044 4045 while (expected_nbytes < raw_btf_size) { 4046 fprintf(stderr, "%u...", expected_nbytes); 4047 if (CHECK(user_btf[expected_nbytes++] != 0xff, 4048 "user_btf[%u]:%x != 0xff", expected_nbytes - 1, 4049 user_btf[expected_nbytes - 1])) { 4050 err = -1; 4051 goto done; 4052 } 4053 } 4054 4055 fprintf(stderr, "OK"); 4056 4057 done: 4058 if (*btf_log_buf && (err || always_log)) 4059 fprintf(stderr, "\n%s", btf_log_buf); 4060 4061 free(raw_btf); 4062 free(user_btf); 4063 4064 if (btf_fd != -1) 4065 close(btf_fd); 4066 } 4067 4068 struct btf_file_test { 4069 const char *file; 4070 bool btf_kv_notfound; 4071 }; 4072 4073 static struct btf_file_test file_tests[] = { 4074 { .file = "test_btf_haskv.o", }, 4075 { .file = "test_btf_newkv.o", }, 4076 { .file = "test_btf_nokv.o", .btf_kv_notfound = true, }, 4077 }; 4078 4079 static void do_test_file(unsigned int test_num) 4080 { 4081 const struct btf_file_test *test = &file_tests[test_num - 1]; 4082 const char *expected_fnames[] = {"_dummy_tracepoint", 4083 "test_long_fname_1", 4084 "test_long_fname_2"}; 4085 struct btf_ext *btf_ext = NULL; 4086 struct bpf_prog_info info = {}; 4087 struct bpf_object *obj = NULL; 4088 struct bpf_func_info *finfo; 4089 struct bpf_program *prog; 4090 __u32 info_len, rec_size; 4091 bool has_btf_ext = false; 4092 struct btf *btf = NULL; 4093 void *func_info = NULL; 4094 struct bpf_map *map; 4095 int i, err, prog_fd; 4096 4097 if (!test__start_subtest(test->file)) 4098 return; 4099 4100 btf = btf__parse_elf(test->file, &btf_ext); 4101 if (IS_ERR(btf)) { 4102 if (PTR_ERR(btf) == -ENOENT) { 4103 printf("%s:SKIP: No ELF %s found", __func__, BTF_ELF_SEC); 4104 test__skip(); 4105 return; 4106 } 4107 return; 4108 } 4109 btf__free(btf); 4110 4111 has_btf_ext = btf_ext != NULL; 4112 btf_ext__free(btf_ext); 4113 4114 obj = bpf_object__open(test->file); 4115 if (CHECK(IS_ERR(obj), "obj: %ld", PTR_ERR(obj))) 4116 return; 4117 4118 prog = bpf_program__next(NULL, obj); 4119 if (CHECK(!prog, "Cannot find bpf_prog")) { 4120 err = -1; 4121 goto done; 4122 } 4123 4124 bpf_program__set_type(prog, BPF_PROG_TYPE_TRACEPOINT); 4125 err = bpf_object__load(obj); 4126 if (CHECK(err < 0, "bpf_object__load: %d", err)) 4127 goto done; 4128 prog_fd = bpf_program__fd(prog); 4129 4130 map = bpf_object__find_map_by_name(obj, "btf_map"); 4131 if (CHECK(!map, "btf_map not found")) { 4132 err = -1; 4133 goto done; 4134 } 4135 4136 err = (bpf_map__btf_key_type_id(map) == 0 || bpf_map__btf_value_type_id(map) == 0) 4137 != test->btf_kv_notfound; 4138 if (CHECK(err, "btf_key_type_id:%u btf_value_type_id:%u test->btf_kv_notfound:%u", 4139 bpf_map__btf_key_type_id(map), bpf_map__btf_value_type_id(map), 4140 test->btf_kv_notfound)) 4141 goto done; 4142 4143 if (!has_btf_ext) 4144 goto skip; 4145 4146 /* get necessary program info */ 4147 info_len = sizeof(struct bpf_prog_info); 4148 err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); 4149 4150 if (CHECK(err == -1, "invalid get info (1st) errno:%d", errno)) { 4151 fprintf(stderr, "%s\n", btf_log_buf); 4152 err = -1; 4153 goto done; 4154 } 4155 if (CHECK(info.nr_func_info != 3, 4156 "incorrect info.nr_func_info (1st) %d", 4157 info.nr_func_info)) { 4158 err = -1; 4159 goto done; 4160 } 4161 rec_size = info.func_info_rec_size; 4162 if (CHECK(rec_size != sizeof(struct bpf_func_info), 4163 "incorrect info.func_info_rec_size (1st) %d\n", rec_size)) { 4164 err = -1; 4165 goto done; 4166 } 4167 4168 func_info = malloc(info.nr_func_info * rec_size); 4169 if (CHECK(!func_info, "out of memory")) { 4170 err = -1; 4171 goto done; 4172 } 4173 4174 /* reset info to only retrieve func_info related data */ 4175 memset(&info, 0, sizeof(info)); 4176 info.nr_func_info = 3; 4177 info.func_info_rec_size = rec_size; 4178 info.func_info = ptr_to_u64(func_info); 4179 4180 err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); 4181 4182 if (CHECK(err == -1, "invalid get info (2nd) errno:%d", errno)) { 4183 fprintf(stderr, "%s\n", btf_log_buf); 4184 err = -1; 4185 goto done; 4186 } 4187 if (CHECK(info.nr_func_info != 3, 4188 "incorrect info.nr_func_info (2nd) %d", 4189 info.nr_func_info)) { 4190 err = -1; 4191 goto done; 4192 } 4193 if (CHECK(info.func_info_rec_size != rec_size, 4194 "incorrect info.func_info_rec_size (2nd) %d", 4195 info.func_info_rec_size)) { 4196 err = -1; 4197 goto done; 4198 } 4199 4200 err = btf__get_from_id(info.btf_id, &btf); 4201 if (CHECK(err, "cannot get btf from kernel, err: %d", err)) 4202 goto done; 4203 4204 /* check three functions */ 4205 finfo = func_info; 4206 for (i = 0; i < 3; i++) { 4207 const struct btf_type *t; 4208 const char *fname; 4209 4210 t = btf__type_by_id(btf, finfo->type_id); 4211 if (CHECK(!t, "btf__type_by_id failure: id %u", 4212 finfo->type_id)) { 4213 err = -1; 4214 goto done; 4215 } 4216 4217 fname = btf__name_by_offset(btf, t->name_off); 4218 err = strcmp(fname, expected_fnames[i]); 4219 /* for the second and third functions in .text section, 4220 * the compiler may order them either way. 4221 */ 4222 if (i && err) 4223 err = strcmp(fname, expected_fnames[3 - i]); 4224 if (CHECK(err, "incorrect fname %s", fname ? : "")) { 4225 err = -1; 4226 goto done; 4227 } 4228 4229 finfo = (void *)finfo + rec_size; 4230 } 4231 4232 skip: 4233 fprintf(stderr, "OK"); 4234 4235 done: 4236 free(func_info); 4237 bpf_object__close(obj); 4238 } 4239 4240 const char *pprint_enum_str[] = { 4241 "ENUM_ZERO", 4242 "ENUM_ONE", 4243 "ENUM_TWO", 4244 "ENUM_THREE", 4245 }; 4246 4247 struct pprint_mapv { 4248 uint32_t ui32; 4249 uint16_t ui16; 4250 /* 2 bytes hole */ 4251 int32_t si32; 4252 uint32_t unused_bits2a:2, 4253 bits28:28, 4254 unused_bits2b:2; 4255 union { 4256 uint64_t ui64; 4257 uint8_t ui8a[8]; 4258 }; 4259 enum { 4260 ENUM_ZERO, 4261 ENUM_ONE, 4262 ENUM_TWO, 4263 ENUM_THREE, 4264 } aenum; 4265 uint32_t ui32b; 4266 uint32_t bits2c:2; 4267 uint8_t si8_4[2][2]; 4268 }; 4269 4270 #ifdef __SIZEOF_INT128__ 4271 struct pprint_mapv_int128 { 4272 __int128 si128a; 4273 __int128 si128b; 4274 unsigned __int128 bits3:3; 4275 unsigned __int128 bits80:80; 4276 unsigned __int128 ui128; 4277 }; 4278 #endif 4279 4280 static struct btf_raw_test pprint_test_template[] = { 4281 { 4282 .raw_types = { 4283 /* unsighed char */ /* [1] */ 4284 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), 4285 /* unsigned short */ /* [2] */ 4286 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), 4287 /* unsigned int */ /* [3] */ 4288 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), 4289 /* int */ /* [4] */ 4290 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 4291 /* unsigned long long */ /* [5] */ 4292 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), 4293 /* 2 bits */ /* [6] */ 4294 BTF_TYPE_INT_ENC(0, 0, 0, 2, 2), 4295 /* 28 bits */ /* [7] */ 4296 BTF_TYPE_INT_ENC(0, 0, 0, 28, 4), 4297 /* uint8_t[8] */ /* [8] */ 4298 BTF_TYPE_ARRAY_ENC(9, 1, 8), 4299 /* typedef unsigned char uint8_t */ /* [9] */ 4300 BTF_TYPEDEF_ENC(NAME_TBD, 1), 4301 /* typedef unsigned short uint16_t */ /* [10] */ 4302 BTF_TYPEDEF_ENC(NAME_TBD, 2), 4303 /* typedef unsigned int uint32_t */ /* [11] */ 4304 BTF_TYPEDEF_ENC(NAME_TBD, 3), 4305 /* typedef int int32_t */ /* [12] */ 4306 BTF_TYPEDEF_ENC(NAME_TBD, 4), 4307 /* typedef unsigned long long uint64_t *//* [13] */ 4308 BTF_TYPEDEF_ENC(NAME_TBD, 5), 4309 /* union (anon) */ /* [14] */ 4310 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), 4311 BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ 4312 BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ 4313 /* enum (anon) */ /* [15] */ 4314 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), 4315 BTF_ENUM_ENC(NAME_TBD, 0), 4316 BTF_ENUM_ENC(NAME_TBD, 1), 4317 BTF_ENUM_ENC(NAME_TBD, 2), 4318 BTF_ENUM_ENC(NAME_TBD, 3), 4319 /* struct pprint_mapv */ /* [16] */ 4320 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 11), 40), 4321 BTF_MEMBER_ENC(NAME_TBD, 11, 0), /* uint32_t ui32 */ 4322 BTF_MEMBER_ENC(NAME_TBD, 10, 32), /* uint16_t ui16 */ 4323 BTF_MEMBER_ENC(NAME_TBD, 12, 64), /* int32_t si32 */ 4324 BTF_MEMBER_ENC(NAME_TBD, 6, 96), /* unused_bits2a */ 4325 BTF_MEMBER_ENC(NAME_TBD, 7, 98), /* bits28 */ 4326 BTF_MEMBER_ENC(NAME_TBD, 6, 126), /* unused_bits2b */ 4327 BTF_MEMBER_ENC(0, 14, 128), /* union (anon) */ 4328 BTF_MEMBER_ENC(NAME_TBD, 15, 192), /* aenum */ 4329 BTF_MEMBER_ENC(NAME_TBD, 11, 224), /* uint32_t ui32b */ 4330 BTF_MEMBER_ENC(NAME_TBD, 6, 256), /* bits2c */ 4331 BTF_MEMBER_ENC(NAME_TBD, 17, 264), /* si8_4 */ 4332 BTF_TYPE_ARRAY_ENC(18, 1, 2), /* [17] */ 4333 BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [18] */ 4334 BTF_END_RAW, 4335 }, 4336 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"), 4337 .key_size = sizeof(unsigned int), 4338 .value_size = sizeof(struct pprint_mapv), 4339 .key_type_id = 3, /* unsigned int */ 4340 .value_type_id = 16, /* struct pprint_mapv */ 4341 .max_entries = 128, 4342 }, 4343 4344 { 4345 /* this type will have the same type as the 4346 * first .raw_types definition, but struct type will 4347 * be encoded with kind_flag set. 4348 */ 4349 .raw_types = { 4350 /* unsighed char */ /* [1] */ 4351 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), 4352 /* unsigned short */ /* [2] */ 4353 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), 4354 /* unsigned int */ /* [3] */ 4355 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), 4356 /* int */ /* [4] */ 4357 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 4358 /* unsigned long long */ /* [5] */ 4359 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), 4360 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [6] */ 4361 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [7] */ 4362 /* uint8_t[8] */ /* [8] */ 4363 BTF_TYPE_ARRAY_ENC(9, 1, 8), 4364 /* typedef unsigned char uint8_t */ /* [9] */ 4365 BTF_TYPEDEF_ENC(NAME_TBD, 1), 4366 /* typedef unsigned short uint16_t */ /* [10] */ 4367 BTF_TYPEDEF_ENC(NAME_TBD, 2), 4368 /* typedef unsigned int uint32_t */ /* [11] */ 4369 BTF_TYPEDEF_ENC(NAME_TBD, 3), 4370 /* typedef int int32_t */ /* [12] */ 4371 BTF_TYPEDEF_ENC(NAME_TBD, 4), 4372 /* typedef unsigned long long uint64_t *//* [13] */ 4373 BTF_TYPEDEF_ENC(NAME_TBD, 5), 4374 /* union (anon) */ /* [14] */ 4375 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), 4376 BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ 4377 BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ 4378 /* enum (anon) */ /* [15] */ 4379 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), 4380 BTF_ENUM_ENC(NAME_TBD, 0), 4381 BTF_ENUM_ENC(NAME_TBD, 1), 4382 BTF_ENUM_ENC(NAME_TBD, 2), 4383 BTF_ENUM_ENC(NAME_TBD, 3), 4384 /* struct pprint_mapv */ /* [16] */ 4385 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 11), 40), 4386 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)), /* uint32_t ui32 */ 4387 BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)), /* uint16_t ui16 */ 4388 BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)), /* int32_t si32 */ 4389 BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 96)), /* unused_bits2a */ 4390 BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)), /* bits28 */ 4391 BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 126)), /* unused_bits2b */ 4392 BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)), /* union (anon) */ 4393 BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)), /* aenum */ 4394 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)), /* uint32_t ui32b */ 4395 BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 256)), /* bits2c */ 4396 BTF_MEMBER_ENC(NAME_TBD, 17, 264), /* si8_4 */ 4397 BTF_TYPE_ARRAY_ENC(18, 1, 2), /* [17] */ 4398 BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [18] */ 4399 BTF_END_RAW, 4400 }, 4401 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"), 4402 .key_size = sizeof(unsigned int), 4403 .value_size = sizeof(struct pprint_mapv), 4404 .key_type_id = 3, /* unsigned int */ 4405 .value_type_id = 16, /* struct pprint_mapv */ 4406 .max_entries = 128, 4407 }, 4408 4409 { 4410 /* this type will have the same layout as the 4411 * first .raw_types definition. The struct type will 4412 * be encoded with kind_flag set, bitfield members 4413 * are added typedef/const/volatile, and bitfield members 4414 * will have both int and enum types. 4415 */ 4416 .raw_types = { 4417 /* unsighed char */ /* [1] */ 4418 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), 4419 /* unsigned short */ /* [2] */ 4420 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), 4421 /* unsigned int */ /* [3] */ 4422 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), 4423 /* int */ /* [4] */ 4424 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), 4425 /* unsigned long long */ /* [5] */ 4426 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), 4427 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [6] */ 4428 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [7] */ 4429 /* uint8_t[8] */ /* [8] */ 4430 BTF_TYPE_ARRAY_ENC(9, 1, 8), 4431 /* typedef unsigned char uint8_t */ /* [9] */ 4432 BTF_TYPEDEF_ENC(NAME_TBD, 1), 4433 /* typedef unsigned short uint16_t */ /* [10] */ 4434 BTF_TYPEDEF_ENC(NAME_TBD, 2), 4435 /* typedef unsigned int uint32_t */ /* [11] */ 4436 BTF_TYPEDEF_ENC(NAME_TBD, 3), 4437 /* typedef int int32_t */ /* [12] */ 4438 BTF_TYPEDEF_ENC(NAME_TBD, 4), 4439 /* typedef unsigned long long uint64_t *//* [13] */ 4440 BTF_TYPEDEF_ENC(NAME_TBD, 5), 4441 /* union (anon) */ /* [14] */ 4442 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), 4443 BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ 4444 BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ 4445 /* enum (anon) */ /* [15] */ 4446 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), 4447 BTF_ENUM_ENC(NAME_TBD, 0), 4448 BTF_ENUM_ENC(NAME_TBD, 1), 4449 BTF_ENUM_ENC(NAME_TBD, 2), 4450 BTF_ENUM_ENC(NAME_TBD, 3), 4451 /* struct pprint_mapv */ /* [16] */ 4452 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 11), 40), 4453 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)), /* uint32_t ui32 */ 4454 BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)), /* uint16_t ui16 */ 4455 BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)), /* int32_t si32 */ 4456 BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 96)), /* unused_bits2a */ 4457 BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)), /* bits28 */ 4458 BTF_MEMBER_ENC(NAME_TBD, 19, BTF_MEMBER_OFFSET(2, 126)),/* unused_bits2b */ 4459 BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)), /* union (anon) */ 4460 BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)), /* aenum */ 4461 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)), /* uint32_t ui32b */ 4462 BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 256)), /* bits2c */ 4463 BTF_MEMBER_ENC(NAME_TBD, 20, BTF_MEMBER_OFFSET(0, 264)), /* si8_4 */ 4464 /* typedef unsigned int ___int */ /* [17] */ 4465 BTF_TYPEDEF_ENC(NAME_TBD, 18), 4466 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), 6), /* [18] */ 4467 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 15), /* [19] */ 4468 BTF_TYPE_ARRAY_ENC(21, 1, 2), /* [20] */ 4469 BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [21] */ 4470 BTF_END_RAW, 4471 }, 4472 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"), 4473 .key_size = sizeof(unsigned int), 4474 .value_size = sizeof(struct pprint_mapv), 4475 .key_type_id = 3, /* unsigned int */ 4476 .value_type_id = 16, /* struct pprint_mapv */ 4477 .max_entries = 128, 4478 }, 4479 4480 #ifdef __SIZEOF_INT128__ 4481 { 4482 /* test int128 */ 4483 .raw_types = { 4484 /* unsigned int */ /* [1] */ 4485 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), 4486 /* __int128 */ /* [2] */ 4487 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 128, 16), 4488 /* unsigned __int128 */ /* [3] */ 4489 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 128, 16), 4490 /* struct pprint_mapv_int128 */ /* [4] */ 4491 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 5), 64), 4492 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), /* si128a */ 4493 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 128)), /* si128b */ 4494 BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(3, 256)), /* bits3 */ 4495 BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(80, 259)), /* bits80 */ 4496 BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(0, 384)), /* ui128 */ 4497 BTF_END_RAW, 4498 }, 4499 BTF_STR_SEC("\0unsigned int\0__int128\0unsigned __int128\0pprint_mapv_int128\0si128a\0si128b\0bits3\0bits80\0ui128"), 4500 .key_size = sizeof(unsigned int), 4501 .value_size = sizeof(struct pprint_mapv_int128), 4502 .key_type_id = 1, 4503 .value_type_id = 4, 4504 .max_entries = 128, 4505 .mapv_kind = PPRINT_MAPV_KIND_INT128, 4506 }, 4507 #endif 4508 4509 }; 4510 4511 static struct btf_pprint_test_meta { 4512 const char *descr; 4513 enum bpf_map_type map_type; 4514 const char *map_name; 4515 bool ordered_map; 4516 bool lossless_map; 4517 bool percpu_map; 4518 } pprint_tests_meta[] = { 4519 { 4520 .descr = "BTF pretty print array", 4521 .map_type = BPF_MAP_TYPE_ARRAY, 4522 .map_name = "pprint_test_array", 4523 .ordered_map = true, 4524 .lossless_map = true, 4525 .percpu_map = false, 4526 }, 4527 4528 { 4529 .descr = "BTF pretty print hash", 4530 .map_type = BPF_MAP_TYPE_HASH, 4531 .map_name = "pprint_test_hash", 4532 .ordered_map = false, 4533 .lossless_map = true, 4534 .percpu_map = false, 4535 }, 4536 4537 { 4538 .descr = "BTF pretty print lru hash", 4539 .map_type = BPF_MAP_TYPE_LRU_HASH, 4540 .map_name = "pprint_test_lru_hash", 4541 .ordered_map = false, 4542 .lossless_map = false, 4543 .percpu_map = false, 4544 }, 4545 4546 { 4547 .descr = "BTF pretty print percpu array", 4548 .map_type = BPF_MAP_TYPE_PERCPU_ARRAY, 4549 .map_name = "pprint_test_percpu_array", 4550 .ordered_map = true, 4551 .lossless_map = true, 4552 .percpu_map = true, 4553 }, 4554 4555 { 4556 .descr = "BTF pretty print percpu hash", 4557 .map_type = BPF_MAP_TYPE_PERCPU_HASH, 4558 .map_name = "pprint_test_percpu_hash", 4559 .ordered_map = false, 4560 .lossless_map = true, 4561 .percpu_map = true, 4562 }, 4563 4564 { 4565 .descr = "BTF pretty print lru percpu hash", 4566 .map_type = BPF_MAP_TYPE_LRU_PERCPU_HASH, 4567 .map_name = "pprint_test_lru_percpu_hash", 4568 .ordered_map = false, 4569 .lossless_map = false, 4570 .percpu_map = true, 4571 }, 4572 4573 }; 4574 4575 static size_t get_pprint_mapv_size(enum pprint_mapv_kind_t mapv_kind) 4576 { 4577 if (mapv_kind == PPRINT_MAPV_KIND_BASIC) 4578 return sizeof(struct pprint_mapv); 4579 4580 #ifdef __SIZEOF_INT128__ 4581 if (mapv_kind == PPRINT_MAPV_KIND_INT128) 4582 return sizeof(struct pprint_mapv_int128); 4583 #endif 4584 4585 assert(0); 4586 } 4587 4588 static void set_pprint_mapv(enum pprint_mapv_kind_t mapv_kind, 4589 void *mapv, uint32_t i, 4590 int num_cpus, int rounded_value_size) 4591 { 4592 int cpu; 4593 4594 if (mapv_kind == PPRINT_MAPV_KIND_BASIC) { 4595 struct pprint_mapv *v = mapv; 4596 4597 for (cpu = 0; cpu < num_cpus; cpu++) { 4598 v->ui32 = i + cpu; 4599 v->si32 = -i; 4600 v->unused_bits2a = 3; 4601 v->bits28 = i; 4602 v->unused_bits2b = 3; 4603 v->ui64 = i; 4604 v->aenum = i & 0x03; 4605 v->ui32b = 4; 4606 v->bits2c = 1; 4607 v->si8_4[0][0] = (cpu + i) & 0xff; 4608 v->si8_4[0][1] = (cpu + i + 1) & 0xff; 4609 v->si8_4[1][0] = (cpu + i + 2) & 0xff; 4610 v->si8_4[1][1] = (cpu + i + 3) & 0xff; 4611 v = (void *)v + rounded_value_size; 4612 } 4613 } 4614 4615 #ifdef __SIZEOF_INT128__ 4616 if (mapv_kind == PPRINT_MAPV_KIND_INT128) { 4617 struct pprint_mapv_int128 *v = mapv; 4618 4619 for (cpu = 0; cpu < num_cpus; cpu++) { 4620 v->si128a = i; 4621 v->si128b = -i; 4622 v->bits3 = i & 0x07; 4623 v->bits80 = (((unsigned __int128)1) << 64) + i; 4624 v->ui128 = (((unsigned __int128)2) << 64) + i; 4625 v = (void *)v + rounded_value_size; 4626 } 4627 } 4628 #endif 4629 } 4630 4631 ssize_t get_pprint_expected_line(enum pprint_mapv_kind_t mapv_kind, 4632 char *expected_line, ssize_t line_size, 4633 bool percpu_map, unsigned int next_key, 4634 int cpu, void *mapv) 4635 { 4636 ssize_t nexpected_line = -1; 4637 4638 if (mapv_kind == PPRINT_MAPV_KIND_BASIC) { 4639 struct pprint_mapv *v = mapv; 4640 4641 nexpected_line = snprintf(expected_line, line_size, 4642 "%s%u: {%u,0,%d,0x%x,0x%x,0x%x," 4643 "{%llu|[%u,%u,%u,%u,%u,%u,%u,%u]},%s," 4644 "%u,0x%x,[[%d,%d],[%d,%d]]}\n", 4645 percpu_map ? "\tcpu" : "", 4646 percpu_map ? cpu : next_key, 4647 v->ui32, v->si32, 4648 v->unused_bits2a, 4649 v->bits28, 4650 v->unused_bits2b, 4651 (__u64)v->ui64, 4652 v->ui8a[0], v->ui8a[1], 4653 v->ui8a[2], v->ui8a[3], 4654 v->ui8a[4], v->ui8a[5], 4655 v->ui8a[6], v->ui8a[7], 4656 pprint_enum_str[v->aenum], 4657 v->ui32b, 4658 v->bits2c, 4659 v->si8_4[0][0], v->si8_4[0][1], 4660 v->si8_4[1][0], v->si8_4[1][1]); 4661 } 4662 4663 #ifdef __SIZEOF_INT128__ 4664 if (mapv_kind == PPRINT_MAPV_KIND_INT128) { 4665 struct pprint_mapv_int128 *v = mapv; 4666 4667 nexpected_line = snprintf(expected_line, line_size, 4668 "%s%u: {0x%lx,0x%lx,0x%lx," 4669 "0x%lx%016lx,0x%lx%016lx}\n", 4670 percpu_map ? "\tcpu" : "", 4671 percpu_map ? cpu : next_key, 4672 (uint64_t)v->si128a, 4673 (uint64_t)v->si128b, 4674 (uint64_t)v->bits3, 4675 (uint64_t)(v->bits80 >> 64), 4676 (uint64_t)v->bits80, 4677 (uint64_t)(v->ui128 >> 64), 4678 (uint64_t)v->ui128); 4679 } 4680 #endif 4681 4682 return nexpected_line; 4683 } 4684 4685 static int check_line(const char *expected_line, int nexpected_line, 4686 int expected_line_len, const char *line) 4687 { 4688 if (CHECK(nexpected_line == expected_line_len, 4689 "expected_line is too long")) 4690 return -1; 4691 4692 if (strcmp(expected_line, line)) { 4693 fprintf(stderr, "unexpected pprint output\n"); 4694 fprintf(stderr, "expected: %s", expected_line); 4695 fprintf(stderr, " read: %s", line); 4696 return -1; 4697 } 4698 4699 return 0; 4700 } 4701 4702 4703 static void do_test_pprint(int test_num) 4704 { 4705 const struct btf_raw_test *test = &pprint_test_template[test_num]; 4706 enum pprint_mapv_kind_t mapv_kind = test->mapv_kind; 4707 struct bpf_create_map_attr create_attr = {}; 4708 bool ordered_map, lossless_map, percpu_map; 4709 int err, ret, num_cpus, rounded_value_size; 4710 unsigned int key, nr_read_elems; 4711 int map_fd = -1, btf_fd = -1; 4712 unsigned int raw_btf_size; 4713 char expected_line[255]; 4714 FILE *pin_file = NULL; 4715 char pin_path[255]; 4716 size_t line_len = 0; 4717 char *line = NULL; 4718 void *mapv = NULL; 4719 uint8_t *raw_btf; 4720 ssize_t nread; 4721 4722 if (!test__start_subtest(test->descr)) 4723 return; 4724 4725 raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, 4726 test->str_sec, test->str_sec_size, 4727 &raw_btf_size, NULL); 4728 4729 if (!raw_btf) 4730 return; 4731 4732 *btf_log_buf = '\0'; 4733 btf_fd = bpf_load_btf(raw_btf, raw_btf_size, 4734 btf_log_buf, BTF_LOG_BUF_SIZE, 4735 always_log); 4736 free(raw_btf); 4737 4738 if (CHECK(btf_fd == -1, "errno:%d", errno)) { 4739 err = -1; 4740 goto done; 4741 } 4742 4743 create_attr.name = test->map_name; 4744 create_attr.map_type = test->map_type; 4745 create_attr.key_size = test->key_size; 4746 create_attr.value_size = test->value_size; 4747 create_attr.max_entries = test->max_entries; 4748 create_attr.btf_fd = btf_fd; 4749 create_attr.btf_key_type_id = test->key_type_id; 4750 create_attr.btf_value_type_id = test->value_type_id; 4751 4752 map_fd = bpf_create_map_xattr(&create_attr); 4753 if (CHECK(map_fd == -1, "errno:%d", errno)) { 4754 err = -1; 4755 goto done; 4756 } 4757 4758 ret = snprintf(pin_path, sizeof(pin_path), "%s/%s", 4759 "/sys/fs/bpf", test->map_name); 4760 4761 if (CHECK(ret == sizeof(pin_path), "pin_path %s/%s is too long", 4762 "/sys/fs/bpf", test->map_name)) { 4763 err = -1; 4764 goto done; 4765 } 4766 4767 err = bpf_obj_pin(map_fd, pin_path); 4768 if (CHECK(err, "bpf_obj_pin(%s): errno:%d.", pin_path, errno)) 4769 goto done; 4770 4771 percpu_map = test->percpu_map; 4772 num_cpus = percpu_map ? bpf_num_possible_cpus() : 1; 4773 rounded_value_size = round_up(get_pprint_mapv_size(mapv_kind), 8); 4774 mapv = calloc(num_cpus, rounded_value_size); 4775 if (CHECK(!mapv, "mapv allocation failure")) { 4776 err = -1; 4777 goto done; 4778 } 4779 4780 for (key = 0; key < test->max_entries; key++) { 4781 set_pprint_mapv(mapv_kind, mapv, key, num_cpus, rounded_value_size); 4782 bpf_map_update_elem(map_fd, &key, mapv, 0); 4783 } 4784 4785 pin_file = fopen(pin_path, "r"); 4786 if (CHECK(!pin_file, "fopen(%s): errno:%d", pin_path, errno)) { 4787 err = -1; 4788 goto done; 4789 } 4790 4791 /* Skip lines start with '#' */ 4792 while ((nread = getline(&line, &line_len, pin_file)) > 0 && 4793 *line == '#') 4794 ; 4795 4796 if (CHECK(nread <= 0, "Unexpected EOF")) { 4797 err = -1; 4798 goto done; 4799 } 4800 4801 nr_read_elems = 0; 4802 ordered_map = test->ordered_map; 4803 lossless_map = test->lossless_map; 4804 do { 4805 ssize_t nexpected_line; 4806 unsigned int next_key; 4807 void *cmapv; 4808 int cpu; 4809 4810 next_key = ordered_map ? nr_read_elems : atoi(line); 4811 set_pprint_mapv(mapv_kind, mapv, next_key, num_cpus, rounded_value_size); 4812 cmapv = mapv; 4813 4814 for (cpu = 0; cpu < num_cpus; cpu++) { 4815 if (percpu_map) { 4816 /* for percpu map, the format looks like: 4817 * <key>: { 4818 * cpu0: <value_on_cpu0> 4819 * cpu1: <value_on_cpu1> 4820 * ... 4821 * cpun: <value_on_cpun> 4822 * } 4823 * 4824 * let us verify the line containing the key here. 4825 */ 4826 if (cpu == 0) { 4827 nexpected_line = snprintf(expected_line, 4828 sizeof(expected_line), 4829 "%u: {\n", 4830 next_key); 4831 4832 err = check_line(expected_line, nexpected_line, 4833 sizeof(expected_line), line); 4834 if (err == -1) 4835 goto done; 4836 } 4837 4838 /* read value@cpu */ 4839 nread = getline(&line, &line_len, pin_file); 4840 if (nread < 0) 4841 break; 4842 } 4843 4844 nexpected_line = get_pprint_expected_line(mapv_kind, expected_line, 4845 sizeof(expected_line), 4846 percpu_map, next_key, 4847 cpu, cmapv); 4848 err = check_line(expected_line, nexpected_line, 4849 sizeof(expected_line), line); 4850 if (err == -1) 4851 goto done; 4852 4853 cmapv = cmapv + rounded_value_size; 4854 } 4855 4856 if (percpu_map) { 4857 /* skip the last bracket for the percpu map */ 4858 nread = getline(&line, &line_len, pin_file); 4859 if (nread < 0) 4860 break; 4861 } 4862 4863 nread = getline(&line, &line_len, pin_file); 4864 } while (++nr_read_elems < test->max_entries && nread > 0); 4865 4866 if (lossless_map && 4867 CHECK(nr_read_elems < test->max_entries, 4868 "Unexpected EOF. nr_read_elems:%u test->max_entries:%u", 4869 nr_read_elems, test->max_entries)) { 4870 err = -1; 4871 goto done; 4872 } 4873 4874 if (CHECK(nread > 0, "Unexpected extra pprint output: %s", line)) { 4875 err = -1; 4876 goto done; 4877 } 4878 4879 err = 0; 4880 4881 done: 4882 if (mapv) 4883 free(mapv); 4884 if (!err) 4885 fprintf(stderr, "OK"); 4886 if (*btf_log_buf && (err || always_log)) 4887 fprintf(stderr, "\n%s", btf_log_buf); 4888 if (btf_fd != -1) 4889 close(btf_fd); 4890 if (map_fd != -1) 4891 close(map_fd); 4892 if (pin_file) 4893 fclose(pin_file); 4894 unlink(pin_path); 4895 free(line); 4896 } 4897 4898 static void test_pprint(void) 4899 { 4900 unsigned int i; 4901 4902 /* test various maps with the first test template */ 4903 for (i = 0; i < ARRAY_SIZE(pprint_tests_meta); i++) { 4904 pprint_test_template[0].descr = pprint_tests_meta[i].descr; 4905 pprint_test_template[0].map_type = pprint_tests_meta[i].map_type; 4906 pprint_test_template[0].map_name = pprint_tests_meta[i].map_name; 4907 pprint_test_template[0].ordered_map = pprint_tests_meta[i].ordered_map; 4908 pprint_test_template[0].lossless_map = pprint_tests_meta[i].lossless_map; 4909 pprint_test_template[0].percpu_map = pprint_tests_meta[i].percpu_map; 4910 4911 do_test_pprint(0); 4912 } 4913 4914 /* test rest test templates with the first map */ 4915 for (i = 1; i < ARRAY_SIZE(pprint_test_template); i++) { 4916 pprint_test_template[i].descr = pprint_tests_meta[0].descr; 4917 pprint_test_template[i].map_type = pprint_tests_meta[0].map_type; 4918 pprint_test_template[i].map_name = pprint_tests_meta[0].map_name; 4919 pprint_test_template[i].ordered_map = pprint_tests_meta[0].ordered_map; 4920 pprint_test_template[i].lossless_map = pprint_tests_meta[0].lossless_map; 4921 pprint_test_template[i].percpu_map = pprint_tests_meta[0].percpu_map; 4922 do_test_pprint(i); 4923 } 4924 } 4925 4926 #define BPF_LINE_INFO_ENC(insn_off, file_off, line_off, line_num, line_col) \ 4927 (insn_off), (file_off), (line_off), ((line_num) << 10 | ((line_col) & 0x3ff)) 4928 4929 static struct prog_info_raw_test { 4930 const char *descr; 4931 const char *str_sec; 4932 const char *err_str; 4933 __u32 raw_types[MAX_NR_RAW_U32]; 4934 __u32 str_sec_size; 4935 struct bpf_insn insns[MAX_INSNS]; 4936 __u32 prog_type; 4937 __u32 func_info[MAX_SUBPROGS][2]; 4938 __u32 func_info_rec_size; 4939 __u32 func_info_cnt; 4940 __u32 line_info[MAX_NR_RAW_U32]; 4941 __u32 line_info_rec_size; 4942 __u32 nr_jited_ksyms; 4943 bool expected_prog_load_failure; 4944 __u32 dead_code_cnt; 4945 __u32 dead_code_mask; 4946 __u32 dead_func_cnt; 4947 __u32 dead_func_mask; 4948 } info_raw_tests[] = { 4949 { 4950 .descr = "func_type (main func + one sub)", 4951 .raw_types = { 4952 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4953 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ 4954 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 4955 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 4956 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 4957 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ 4958 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 4959 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 4960 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ 4961 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ 4962 BTF_END_RAW, 4963 }, 4964 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", 4965 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), 4966 .insns = { 4967 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), 4968 BPF_MOV64_IMM(BPF_REG_0, 1), 4969 BPF_EXIT_INSN(), 4970 BPF_MOV64_IMM(BPF_REG_0, 2), 4971 BPF_EXIT_INSN(), 4972 }, 4973 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4974 .func_info = { {0, 5}, {3, 6} }, 4975 .func_info_rec_size = 8, 4976 .func_info_cnt = 2, 4977 .line_info = { BTF_END_RAW }, 4978 }, 4979 4980 { 4981 .descr = "func_type (Incorrect func_info_rec_size)", 4982 .raw_types = { 4983 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 4984 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ 4985 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 4986 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 4987 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 4988 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ 4989 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 4990 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 4991 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ 4992 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ 4993 BTF_END_RAW, 4994 }, 4995 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", 4996 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), 4997 .insns = { 4998 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), 4999 BPF_MOV64_IMM(BPF_REG_0, 1), 5000 BPF_EXIT_INSN(), 5001 BPF_MOV64_IMM(BPF_REG_0, 2), 5002 BPF_EXIT_INSN(), 5003 }, 5004 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5005 .func_info = { {0, 5}, {3, 6} }, 5006 .func_info_rec_size = 4, 5007 .func_info_cnt = 2, 5008 .line_info = { BTF_END_RAW }, 5009 .expected_prog_load_failure = true, 5010 }, 5011 5012 { 5013 .descr = "func_type (Incorrect func_info_cnt)", 5014 .raw_types = { 5015 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5016 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ 5017 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 5018 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5019 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5020 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ 5021 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5022 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5023 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ 5024 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ 5025 BTF_END_RAW, 5026 }, 5027 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", 5028 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), 5029 .insns = { 5030 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), 5031 BPF_MOV64_IMM(BPF_REG_0, 1), 5032 BPF_EXIT_INSN(), 5033 BPF_MOV64_IMM(BPF_REG_0, 2), 5034 BPF_EXIT_INSN(), 5035 }, 5036 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5037 .func_info = { {0, 5}, {3, 6} }, 5038 .func_info_rec_size = 8, 5039 .func_info_cnt = 1, 5040 .line_info = { BTF_END_RAW }, 5041 .expected_prog_load_failure = true, 5042 }, 5043 5044 { 5045 .descr = "func_type (Incorrect bpf_func_info.insn_off)", 5046 .raw_types = { 5047 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5048 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ 5049 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ 5050 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5051 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5052 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ 5053 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), 5054 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5055 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ 5056 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ 5057 BTF_END_RAW, 5058 }, 5059 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", 5060 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), 5061 .insns = { 5062 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), 5063 BPF_MOV64_IMM(BPF_REG_0, 1), 5064 BPF_EXIT_INSN(), 5065 BPF_MOV64_IMM(BPF_REG_0, 2), 5066 BPF_EXIT_INSN(), 5067 }, 5068 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5069 .func_info = { {0, 5}, {2, 6} }, 5070 .func_info_rec_size = 8, 5071 .func_info_cnt = 2, 5072 .line_info = { BTF_END_RAW }, 5073 .expected_prog_load_failure = true, 5074 }, 5075 5076 { 5077 .descr = "line_info (No subprog)", 5078 .raw_types = { 5079 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5080 BTF_END_RAW, 5081 }, 5082 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5083 .insns = { 5084 BPF_MOV64_IMM(BPF_REG_0, 1), 5085 BPF_MOV64_IMM(BPF_REG_1, 2), 5086 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5087 BPF_EXIT_INSN(), 5088 }, 5089 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5090 .func_info_cnt = 0, 5091 .line_info = { 5092 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5093 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 5094 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 5095 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 5096 BTF_END_RAW, 5097 }, 5098 .line_info_rec_size = sizeof(struct bpf_line_info), 5099 .nr_jited_ksyms = 1, 5100 }, 5101 5102 { 5103 .descr = "line_info (No subprog. insn_off >= prog->len)", 5104 .raw_types = { 5105 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5106 BTF_END_RAW, 5107 }, 5108 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5109 .insns = { 5110 BPF_MOV64_IMM(BPF_REG_0, 1), 5111 BPF_MOV64_IMM(BPF_REG_1, 2), 5112 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5113 BPF_EXIT_INSN(), 5114 }, 5115 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5116 .func_info_cnt = 0, 5117 .line_info = { 5118 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5119 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 5120 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 5121 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 5122 BPF_LINE_INFO_ENC(4, 0, 0, 5, 6), 5123 BTF_END_RAW, 5124 }, 5125 .line_info_rec_size = sizeof(struct bpf_line_info), 5126 .nr_jited_ksyms = 1, 5127 .err_str = "line_info[4].insn_off", 5128 .expected_prog_load_failure = true, 5129 }, 5130 5131 { 5132 .descr = "line_info (Zero bpf insn code)", 5133 .raw_types = { 5134 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5135 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), /* [2] */ 5136 BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [3] */ 5137 BTF_END_RAW, 5138 }, 5139 BTF_STR_SEC("\0int\0unsigned long\0u64\0u64 a=1;\0return a;"), 5140 .insns = { 5141 BPF_LD_IMM64(BPF_REG_0, 1), 5142 BPF_EXIT_INSN(), 5143 }, 5144 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5145 .func_info_cnt = 0, 5146 .line_info = { 5147 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5148 BPF_LINE_INFO_ENC(1, 0, 0, 2, 9), 5149 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 5150 BTF_END_RAW, 5151 }, 5152 .line_info_rec_size = sizeof(struct bpf_line_info), 5153 .nr_jited_ksyms = 1, 5154 .err_str = "Invalid insn code at line_info[1]", 5155 .expected_prog_load_failure = true, 5156 }, 5157 5158 { 5159 .descr = "line_info (No subprog. zero tailing line_info", 5160 .raw_types = { 5161 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5162 BTF_END_RAW, 5163 }, 5164 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5165 .insns = { 5166 BPF_MOV64_IMM(BPF_REG_0, 1), 5167 BPF_MOV64_IMM(BPF_REG_1, 2), 5168 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5169 BPF_EXIT_INSN(), 5170 }, 5171 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5172 .func_info_cnt = 0, 5173 .line_info = { 5174 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0, 5175 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0, 5176 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0, 5177 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 0, 5178 BTF_END_RAW, 5179 }, 5180 .line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32), 5181 .nr_jited_ksyms = 1, 5182 }, 5183 5184 { 5185 .descr = "line_info (No subprog. nonzero tailing line_info)", 5186 .raw_types = { 5187 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5188 BTF_END_RAW, 5189 }, 5190 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5191 .insns = { 5192 BPF_MOV64_IMM(BPF_REG_0, 1), 5193 BPF_MOV64_IMM(BPF_REG_1, 2), 5194 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5195 BPF_EXIT_INSN(), 5196 }, 5197 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5198 .func_info_cnt = 0, 5199 .line_info = { 5200 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0, 5201 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0, 5202 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0, 5203 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 1, 5204 BTF_END_RAW, 5205 }, 5206 .line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32), 5207 .nr_jited_ksyms = 1, 5208 .err_str = "nonzero tailing record in line_info", 5209 .expected_prog_load_failure = true, 5210 }, 5211 5212 { 5213 .descr = "line_info (subprog)", 5214 .raw_types = { 5215 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5216 BTF_END_RAW, 5217 }, 5218 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 5219 .insns = { 5220 BPF_MOV64_IMM(BPF_REG_2, 1), 5221 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 5222 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 5223 BPF_CALL_REL(1), 5224 BPF_EXIT_INSN(), 5225 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 5226 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 5227 BPF_EXIT_INSN(), 5228 }, 5229 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5230 .func_info_cnt = 0, 5231 .line_info = { 5232 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5233 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), 5234 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), 5235 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 5236 BTF_END_RAW, 5237 }, 5238 .line_info_rec_size = sizeof(struct bpf_line_info), 5239 .nr_jited_ksyms = 2, 5240 }, 5241 5242 { 5243 .descr = "line_info (subprog + func_info)", 5244 .raw_types = { 5245 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5246 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 5247 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5248 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 5249 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 5250 BTF_END_RAW, 5251 }, 5252 BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 5253 .insns = { 5254 BPF_MOV64_IMM(BPF_REG_2, 1), 5255 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 5256 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 5257 BPF_CALL_REL(1), 5258 BPF_EXIT_INSN(), 5259 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 5260 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 5261 BPF_EXIT_INSN(), 5262 }, 5263 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5264 .func_info_cnt = 2, 5265 .func_info_rec_size = 8, 5266 .func_info = { {0, 4}, {5, 3} }, 5267 .line_info = { 5268 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5269 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), 5270 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), 5271 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 5272 BTF_END_RAW, 5273 }, 5274 .line_info_rec_size = sizeof(struct bpf_line_info), 5275 .nr_jited_ksyms = 2, 5276 }, 5277 5278 { 5279 .descr = "line_info (subprog. missing 1st func line info)", 5280 .raw_types = { 5281 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5282 BTF_END_RAW, 5283 }, 5284 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 5285 .insns = { 5286 BPF_MOV64_IMM(BPF_REG_2, 1), 5287 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 5288 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 5289 BPF_CALL_REL(1), 5290 BPF_EXIT_INSN(), 5291 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 5292 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 5293 BPF_EXIT_INSN(), 5294 }, 5295 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5296 .func_info_cnt = 0, 5297 .line_info = { 5298 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 1, 10), 5299 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), 5300 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), 5301 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 5302 BTF_END_RAW, 5303 }, 5304 .line_info_rec_size = sizeof(struct bpf_line_info), 5305 .nr_jited_ksyms = 2, 5306 .err_str = "missing bpf_line_info for func#0", 5307 .expected_prog_load_failure = true, 5308 }, 5309 5310 { 5311 .descr = "line_info (subprog. missing 2nd func line info)", 5312 .raw_types = { 5313 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5314 BTF_END_RAW, 5315 }, 5316 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 5317 .insns = { 5318 BPF_MOV64_IMM(BPF_REG_2, 1), 5319 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 5320 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 5321 BPF_CALL_REL(1), 5322 BPF_EXIT_INSN(), 5323 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 5324 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 5325 BPF_EXIT_INSN(), 5326 }, 5327 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5328 .func_info_cnt = 0, 5329 .line_info = { 5330 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5331 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), 5332 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 3, 8), 5333 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 5334 BTF_END_RAW, 5335 }, 5336 .line_info_rec_size = sizeof(struct bpf_line_info), 5337 .nr_jited_ksyms = 2, 5338 .err_str = "missing bpf_line_info for func#1", 5339 .expected_prog_load_failure = true, 5340 }, 5341 5342 { 5343 .descr = "line_info (subprog. unordered insn offset)", 5344 .raw_types = { 5345 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5346 BTF_END_RAW, 5347 }, 5348 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), 5349 .insns = { 5350 BPF_MOV64_IMM(BPF_REG_2, 1), 5351 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 5352 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 5353 BPF_CALL_REL(1), 5354 BPF_EXIT_INSN(), 5355 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 5356 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 5357 BPF_EXIT_INSN(), 5358 }, 5359 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5360 .func_info_cnt = 0, 5361 .line_info = { 5362 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5363 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 2, 9), 5364 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 5365 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), 5366 BTF_END_RAW, 5367 }, 5368 .line_info_rec_size = sizeof(struct bpf_line_info), 5369 .nr_jited_ksyms = 2, 5370 .err_str = "Invalid line_info[2].insn_off", 5371 .expected_prog_load_failure = true, 5372 }, 5373 5374 { 5375 .descr = "line_info (dead start)", 5376 .raw_types = { 5377 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5378 BTF_END_RAW, 5379 }, 5380 BTF_STR_SEC("\0int\0/* dead jmp */\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), 5381 .insns = { 5382 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 5383 BPF_MOV64_IMM(BPF_REG_0, 1), 5384 BPF_MOV64_IMM(BPF_REG_1, 2), 5385 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5386 BPF_EXIT_INSN(), 5387 }, 5388 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5389 .func_info_cnt = 0, 5390 .line_info = { 5391 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5392 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 5393 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 5394 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 5395 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 5, 6), 5396 BTF_END_RAW, 5397 }, 5398 .line_info_rec_size = sizeof(struct bpf_line_info), 5399 .nr_jited_ksyms = 1, 5400 .dead_code_cnt = 1, 5401 .dead_code_mask = 0x01, 5402 }, 5403 5404 { 5405 .descr = "line_info (dead end)", 5406 .raw_types = { 5407 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5408 BTF_END_RAW, 5409 }, 5410 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0/* dead jmp */\0return a + b;\0/* dead exit */"), 5411 .insns = { 5412 BPF_MOV64_IMM(BPF_REG_0, 1), 5413 BPF_MOV64_IMM(BPF_REG_1, 2), 5414 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 5415 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1), 5416 BPF_EXIT_INSN(), 5417 BPF_EXIT_INSN(), 5418 }, 5419 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5420 .func_info_cnt = 0, 5421 .line_info = { 5422 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 12), 5423 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 11), 5424 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 10), 5425 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 9), 5426 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 5, 8), 5427 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 6, 7), 5428 BTF_END_RAW, 5429 }, 5430 .line_info_rec_size = sizeof(struct bpf_line_info), 5431 .nr_jited_ksyms = 1, 5432 .dead_code_cnt = 2, 5433 .dead_code_mask = 0x28, 5434 }, 5435 5436 { 5437 .descr = "line_info (dead code + subprog + func_info)", 5438 .raw_types = { 5439 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5440 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 5441 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5442 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 5443 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 5444 BTF_END_RAW, 5445 }, 5446 BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0/* dead jmp */" 5447 "\0/* dead */\0/* dead */\0/* dead */\0/* dead */" 5448 "\0/* dead */\0/* dead */\0/* dead */\0/* dead */" 5449 "\0return func(a);\0b+=1;\0return b;"), 5450 .insns = { 5451 BPF_MOV64_IMM(BPF_REG_2, 1), 5452 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 5453 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 5454 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 8), 5455 BPF_MOV64_IMM(BPF_REG_2, 1), 5456 BPF_MOV64_IMM(BPF_REG_2, 1), 5457 BPF_MOV64_IMM(BPF_REG_2, 1), 5458 BPF_MOV64_IMM(BPF_REG_2, 1), 5459 BPF_MOV64_IMM(BPF_REG_2, 1), 5460 BPF_MOV64_IMM(BPF_REG_2, 1), 5461 BPF_MOV64_IMM(BPF_REG_2, 1), 5462 BPF_MOV64_IMM(BPF_REG_2, 1), 5463 BPF_CALL_REL(1), 5464 BPF_EXIT_INSN(), 5465 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 5466 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 5467 BPF_EXIT_INSN(), 5468 }, 5469 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5470 .func_info_cnt = 2, 5471 .func_info_rec_size = 8, 5472 .func_info = { {0, 4}, {14, 3} }, 5473 .line_info = { 5474 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5475 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 5476 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 5477 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 5478 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 5479 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), 5480 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), 5481 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), 5482 BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10), 5483 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9), 5484 BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9), 5485 BPF_LINE_INFO_ENC(14, 0, NAME_TBD, 3, 8), 5486 BPF_LINE_INFO_ENC(16, 0, NAME_TBD, 4, 7), 5487 BTF_END_RAW, 5488 }, 5489 .line_info_rec_size = sizeof(struct bpf_line_info), 5490 .nr_jited_ksyms = 2, 5491 .dead_code_cnt = 9, 5492 .dead_code_mask = 0x3fe, 5493 }, 5494 5495 { 5496 .descr = "line_info (dead subprog)", 5497 .raw_types = { 5498 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5499 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 5500 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5501 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 5502 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 5503 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ 5504 BTF_END_RAW, 5505 }, 5506 BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* live call */" 5507 "\0return 0;\0return 0;\0/* dead */\0/* dead */" 5508 "\0/* dead */\0return bla + 1;\0return bla + 1;" 5509 "\0return bla + 1;\0return func(a);\0b+=1;\0return b;"), 5510 .insns = { 5511 BPF_MOV64_IMM(BPF_REG_2, 1), 5512 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), 5513 BPF_CALL_REL(3), 5514 BPF_CALL_REL(5), 5515 BPF_MOV64_IMM(BPF_REG_0, 0), 5516 BPF_EXIT_INSN(), 5517 BPF_MOV64_IMM(BPF_REG_0, 0), 5518 BPF_CALL_REL(1), 5519 BPF_EXIT_INSN(), 5520 BPF_MOV64_REG(BPF_REG_0, 2), 5521 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 5522 BPF_EXIT_INSN(), 5523 }, 5524 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5525 .func_info_cnt = 3, 5526 .func_info_rec_size = 8, 5527 .func_info = { {0, 4}, {6, 3}, {9, 5} }, 5528 .line_info = { 5529 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5530 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 5531 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 5532 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 5533 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 5534 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), 5535 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), 5536 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), 5537 BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10), 5538 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9), 5539 BTF_END_RAW, 5540 }, 5541 .line_info_rec_size = sizeof(struct bpf_line_info), 5542 .nr_jited_ksyms = 2, 5543 .dead_code_cnt = 3, 5544 .dead_code_mask = 0x70, 5545 .dead_func_cnt = 1, 5546 .dead_func_mask = 0x2, 5547 }, 5548 5549 { 5550 .descr = "line_info (dead last subprog)", 5551 .raw_types = { 5552 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5553 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 5554 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5555 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 5556 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ 5557 BTF_END_RAW, 5558 }, 5559 BTF_STR_SEC("\0int\0x\0dead\0main\0int a=1+1;\0/* live call */" 5560 "\0return 0;\0/* dead */\0/* dead */"), 5561 .insns = { 5562 BPF_MOV64_IMM(BPF_REG_2, 1), 5563 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), 5564 BPF_CALL_REL(2), 5565 BPF_MOV64_IMM(BPF_REG_0, 0), 5566 BPF_EXIT_INSN(), 5567 BPF_MOV64_IMM(BPF_REG_0, 0), 5568 BPF_EXIT_INSN(), 5569 }, 5570 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5571 .func_info_cnt = 2, 5572 .func_info_rec_size = 8, 5573 .func_info = { {0, 4}, {5, 3} }, 5574 .line_info = { 5575 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5576 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 5577 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 5578 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 5579 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 5580 BTF_END_RAW, 5581 }, 5582 .line_info_rec_size = sizeof(struct bpf_line_info), 5583 .nr_jited_ksyms = 1, 5584 .dead_code_cnt = 2, 5585 .dead_code_mask = 0x18, 5586 .dead_func_cnt = 1, 5587 .dead_func_mask = 0x2, 5588 }, 5589 5590 { 5591 .descr = "line_info (dead subprog + dead start)", 5592 .raw_types = { 5593 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5594 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 5595 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5596 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 5597 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 5598 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ 5599 BTF_END_RAW, 5600 }, 5601 BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* dead */" 5602 "\0return 0;\0return 0;\0return 0;" 5603 "\0/* dead */\0/* dead */\0/* dead */\0/* dead */" 5604 "\0return b + 1;\0return b + 1;\0return b + 1;"), 5605 .insns = { 5606 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 5607 BPF_MOV64_IMM(BPF_REG_2, 1), 5608 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), 5609 BPF_CALL_REL(3), 5610 BPF_CALL_REL(5), 5611 BPF_MOV64_IMM(BPF_REG_0, 0), 5612 BPF_EXIT_INSN(), 5613 BPF_MOV64_IMM(BPF_REG_0, 0), 5614 BPF_CALL_REL(1), 5615 BPF_EXIT_INSN(), 5616 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 5617 BPF_MOV64_REG(BPF_REG_0, 2), 5618 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 5619 BPF_EXIT_INSN(), 5620 }, 5621 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5622 .func_info_cnt = 3, 5623 .func_info_rec_size = 8, 5624 .func_info = { {0, 4}, {7, 3}, {10, 5} }, 5625 .line_info = { 5626 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5627 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 5628 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 5629 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 5630 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 5631 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), 5632 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), 5633 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), 5634 BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10), 5635 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9), 5636 BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9), 5637 BPF_LINE_INFO_ENC(13, 0, NAME_TBD, 2, 9), 5638 BTF_END_RAW, 5639 }, 5640 .line_info_rec_size = sizeof(struct bpf_line_info), 5641 .nr_jited_ksyms = 2, 5642 .dead_code_cnt = 5, 5643 .dead_code_mask = 0x1e2, 5644 .dead_func_cnt = 1, 5645 .dead_func_mask = 0x2, 5646 }, 5647 5648 { 5649 .descr = "line_info (dead subprog + dead start w/ move)", 5650 .raw_types = { 5651 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5652 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 5653 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5654 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 5655 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 5656 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ 5657 BTF_END_RAW, 5658 }, 5659 BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* live call */" 5660 "\0return 0;\0return 0;\0/* dead */\0/* dead */" 5661 "\0/* dead */\0return bla + 1;\0return bla + 1;" 5662 "\0return bla + 1;\0return func(a);\0b+=1;\0return b;"), 5663 .insns = { 5664 BPF_MOV64_IMM(BPF_REG_2, 1), 5665 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), 5666 BPF_CALL_REL(3), 5667 BPF_CALL_REL(5), 5668 BPF_MOV64_IMM(BPF_REG_0, 0), 5669 BPF_EXIT_INSN(), 5670 BPF_MOV64_IMM(BPF_REG_0, 0), 5671 BPF_CALL_REL(1), 5672 BPF_EXIT_INSN(), 5673 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 5674 BPF_MOV64_REG(BPF_REG_0, 2), 5675 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), 5676 BPF_EXIT_INSN(), 5677 }, 5678 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5679 .func_info_cnt = 3, 5680 .func_info_rec_size = 8, 5681 .func_info = { {0, 4}, {6, 3}, {9, 5} }, 5682 .line_info = { 5683 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5684 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), 5685 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), 5686 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), 5687 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 5688 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), 5689 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), 5690 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), 5691 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 1, 10), 5692 BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9), 5693 BTF_END_RAW, 5694 }, 5695 .line_info_rec_size = sizeof(struct bpf_line_info), 5696 .nr_jited_ksyms = 2, 5697 .dead_code_cnt = 3, 5698 .dead_code_mask = 0x70, 5699 .dead_func_cnt = 1, 5700 .dead_func_mask = 0x2, 5701 }, 5702 5703 { 5704 .descr = "line_info (dead end + subprog start w/ no linfo)", 5705 .raw_types = { 5706 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 5707 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ 5708 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 5709 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ 5710 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ 5711 BTF_END_RAW, 5712 }, 5713 BTF_STR_SEC("\0int\0x\0main\0func\0/* main linfo */\0/* func linfo */"), 5714 .insns = { 5715 BPF_MOV64_IMM(BPF_REG_0, 0), 5716 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 1, 3), 5717 BPF_CALL_REL(3), 5718 BPF_MOV64_IMM(BPF_REG_0, 0), 5719 BPF_EXIT_INSN(), 5720 BPF_EXIT_INSN(), 5721 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 5722 BPF_EXIT_INSN(), 5723 }, 5724 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 5725 .func_info_cnt = 2, 5726 .func_info_rec_size = 8, 5727 .func_info = { {0, 3}, {6, 4}, }, 5728 .line_info = { 5729 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 5730 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), 5731 BTF_END_RAW, 5732 }, 5733 .line_info_rec_size = sizeof(struct bpf_line_info), 5734 .nr_jited_ksyms = 2, 5735 }, 5736 5737 }; 5738 5739 static size_t probe_prog_length(const struct bpf_insn *fp) 5740 { 5741 size_t len; 5742 5743 for (len = MAX_INSNS - 1; len > 0; --len) 5744 if (fp[len].code != 0 || fp[len].imm != 0) 5745 break; 5746 return len + 1; 5747 } 5748 5749 static __u32 *patch_name_tbd(const __u32 *raw_u32, 5750 const char *str, __u32 str_off, 5751 unsigned int str_sec_size, 5752 unsigned int *ret_size) 5753 { 5754 int i, raw_u32_size = get_raw_sec_size(raw_u32); 5755 const char *end_str = str + str_sec_size; 5756 const char *next_str = str + str_off; 5757 __u32 *new_u32 = NULL; 5758 5759 if (raw_u32_size == -1) 5760 return ERR_PTR(-EINVAL); 5761 5762 if (!raw_u32_size) { 5763 *ret_size = 0; 5764 return NULL; 5765 } 5766 5767 new_u32 = malloc(raw_u32_size); 5768 if (!new_u32) 5769 return ERR_PTR(-ENOMEM); 5770 5771 for (i = 0; i < raw_u32_size / sizeof(raw_u32[0]); i++) { 5772 if (raw_u32[i] == NAME_TBD) { 5773 next_str = get_next_str(next_str, end_str); 5774 if (CHECK(!next_str, "Error in getting next_str\n")) { 5775 free(new_u32); 5776 return ERR_PTR(-EINVAL); 5777 } 5778 new_u32[i] = next_str - str; 5779 next_str += strlen(next_str); 5780 } else { 5781 new_u32[i] = raw_u32[i]; 5782 } 5783 } 5784 5785 *ret_size = raw_u32_size; 5786 return new_u32; 5787 } 5788 5789 static int test_get_finfo(const struct prog_info_raw_test *test, 5790 int prog_fd) 5791 { 5792 struct bpf_prog_info info = {}; 5793 struct bpf_func_info *finfo; 5794 __u32 info_len, rec_size, i; 5795 void *func_info = NULL; 5796 __u32 nr_func_info; 5797 int err; 5798 5799 /* get necessary lens */ 5800 info_len = sizeof(struct bpf_prog_info); 5801 err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); 5802 if (CHECK(err == -1, "invalid get info (1st) errno:%d", errno)) { 5803 fprintf(stderr, "%s\n", btf_log_buf); 5804 return -1; 5805 } 5806 nr_func_info = test->func_info_cnt - test->dead_func_cnt; 5807 if (CHECK(info.nr_func_info != nr_func_info, 5808 "incorrect info.nr_func_info (1st) %d", 5809 info.nr_func_info)) { 5810 return -1; 5811 } 5812 5813 rec_size = info.func_info_rec_size; 5814 if (CHECK(rec_size != sizeof(struct bpf_func_info), 5815 "incorrect info.func_info_rec_size (1st) %d", rec_size)) { 5816 return -1; 5817 } 5818 5819 if (!info.nr_func_info) 5820 return 0; 5821 5822 func_info = malloc(info.nr_func_info * rec_size); 5823 if (CHECK(!func_info, "out of memory")) 5824 return -1; 5825 5826 /* reset info to only retrieve func_info related data */ 5827 memset(&info, 0, sizeof(info)); 5828 info.nr_func_info = nr_func_info; 5829 info.func_info_rec_size = rec_size; 5830 info.func_info = ptr_to_u64(func_info); 5831 err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); 5832 if (CHECK(err == -1, "invalid get info (2nd) errno:%d", errno)) { 5833 fprintf(stderr, "%s\n", btf_log_buf); 5834 err = -1; 5835 goto done; 5836 } 5837 if (CHECK(info.nr_func_info != nr_func_info, 5838 "incorrect info.nr_func_info (2nd) %d", 5839 info.nr_func_info)) { 5840 err = -1; 5841 goto done; 5842 } 5843 if (CHECK(info.func_info_rec_size != rec_size, 5844 "incorrect info.func_info_rec_size (2nd) %d", 5845 info.func_info_rec_size)) { 5846 err = -1; 5847 goto done; 5848 } 5849 5850 finfo = func_info; 5851 for (i = 0; i < nr_func_info; i++) { 5852 if (test->dead_func_mask & (1 << i)) 5853 continue; 5854 if (CHECK(finfo->type_id != test->func_info[i][1], 5855 "incorrect func_type %u expected %u", 5856 finfo->type_id, test->func_info[i][1])) { 5857 err = -1; 5858 goto done; 5859 } 5860 finfo = (void *)finfo + rec_size; 5861 } 5862 5863 err = 0; 5864 5865 done: 5866 free(func_info); 5867 return err; 5868 } 5869 5870 static int test_get_linfo(const struct prog_info_raw_test *test, 5871 const void *patched_linfo, 5872 __u32 cnt, int prog_fd) 5873 { 5874 __u32 i, info_len, nr_jited_ksyms, nr_jited_func_lens; 5875 __u64 *jited_linfo = NULL, *jited_ksyms = NULL; 5876 __u32 rec_size, jited_rec_size, jited_cnt; 5877 struct bpf_line_info *linfo = NULL; 5878 __u32 cur_func_len, ksyms_found; 5879 struct bpf_prog_info info = {}; 5880 __u32 *jited_func_lens = NULL; 5881 __u64 cur_func_ksyms; 5882 __u32 dead_insns; 5883 int err; 5884 5885 jited_cnt = cnt; 5886 rec_size = sizeof(*linfo); 5887 jited_rec_size = sizeof(*jited_linfo); 5888 if (test->nr_jited_ksyms) 5889 nr_jited_ksyms = test->nr_jited_ksyms; 5890 else 5891 nr_jited_ksyms = test->func_info_cnt - test->dead_func_cnt; 5892 nr_jited_func_lens = nr_jited_ksyms; 5893 5894 info_len = sizeof(struct bpf_prog_info); 5895 err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); 5896 if (CHECK(err == -1, "err:%d errno:%d", err, errno)) { 5897 err = -1; 5898 goto done; 5899 } 5900 5901 if (!info.jited_prog_len) { 5902 /* prog is not jited */ 5903 jited_cnt = 0; 5904 nr_jited_ksyms = 1; 5905 nr_jited_func_lens = 1; 5906 } 5907 5908 if (CHECK(info.nr_line_info != cnt || 5909 info.nr_jited_line_info != jited_cnt || 5910 info.nr_jited_ksyms != nr_jited_ksyms || 5911 info.nr_jited_func_lens != nr_jited_func_lens || 5912 (!info.nr_line_info && info.nr_jited_line_info), 5913 "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)", 5914 info.nr_line_info, cnt, 5915 info.nr_jited_line_info, jited_cnt, 5916 info.nr_jited_ksyms, nr_jited_ksyms, 5917 info.nr_jited_func_lens, nr_jited_func_lens)) { 5918 err = -1; 5919 goto done; 5920 } 5921 5922 if (CHECK(info.line_info_rec_size != sizeof(struct bpf_line_info) || 5923 info.jited_line_info_rec_size != sizeof(__u64), 5924 "info: line_info_rec_size:%u(userspace expected:%u) jited_line_info_rec_size:%u(userspace expected:%u)", 5925 info.line_info_rec_size, rec_size, 5926 info.jited_line_info_rec_size, jited_rec_size)) { 5927 err = -1; 5928 goto done; 5929 } 5930 5931 if (!cnt) 5932 return 0; 5933 5934 rec_size = info.line_info_rec_size; 5935 jited_rec_size = info.jited_line_info_rec_size; 5936 5937 memset(&info, 0, sizeof(info)); 5938 5939 linfo = calloc(cnt, rec_size); 5940 if (CHECK(!linfo, "!linfo")) { 5941 err = -1; 5942 goto done; 5943 } 5944 info.nr_line_info = cnt; 5945 info.line_info_rec_size = rec_size; 5946 info.line_info = ptr_to_u64(linfo); 5947 5948 if (jited_cnt) { 5949 jited_linfo = calloc(jited_cnt, jited_rec_size); 5950 jited_ksyms = calloc(nr_jited_ksyms, sizeof(*jited_ksyms)); 5951 jited_func_lens = calloc(nr_jited_func_lens, 5952 sizeof(*jited_func_lens)); 5953 if (CHECK(!jited_linfo || !jited_ksyms || !jited_func_lens, 5954 "jited_linfo:%p jited_ksyms:%p jited_func_lens:%p", 5955 jited_linfo, jited_ksyms, jited_func_lens)) { 5956 err = -1; 5957 goto done; 5958 } 5959 5960 info.nr_jited_line_info = jited_cnt; 5961 info.jited_line_info_rec_size = jited_rec_size; 5962 info.jited_line_info = ptr_to_u64(jited_linfo); 5963 info.nr_jited_ksyms = nr_jited_ksyms; 5964 info.jited_ksyms = ptr_to_u64(jited_ksyms); 5965 info.nr_jited_func_lens = nr_jited_func_lens; 5966 info.jited_func_lens = ptr_to_u64(jited_func_lens); 5967 } 5968 5969 err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); 5970 5971 /* 5972 * Only recheck the info.*line_info* fields. 5973 * Other fields are not the concern of this test. 5974 */ 5975 if (CHECK(err == -1 || 5976 info.nr_line_info != cnt || 5977 (jited_cnt && !info.jited_line_info) || 5978 info.nr_jited_line_info != jited_cnt || 5979 info.line_info_rec_size != rec_size || 5980 info.jited_line_info_rec_size != jited_rec_size, 5981 "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", 5982 err, errno, 5983 info.nr_line_info, cnt, 5984 info.nr_jited_line_info, jited_cnt, 5985 info.line_info_rec_size, rec_size, 5986 info.jited_line_info_rec_size, jited_rec_size, 5987 (void *)(long)info.line_info, 5988 (void *)(long)info.jited_line_info)) { 5989 err = -1; 5990 goto done; 5991 } 5992 5993 dead_insns = 0; 5994 while (test->dead_code_mask & (1 << dead_insns)) 5995 dead_insns++; 5996 5997 CHECK(linfo[0].insn_off, "linfo[0].insn_off:%u", 5998 linfo[0].insn_off); 5999 for (i = 1; i < cnt; i++) { 6000 const struct bpf_line_info *expected_linfo; 6001 6002 while (test->dead_code_mask & (1 << (i + dead_insns))) 6003 dead_insns++; 6004 6005 expected_linfo = patched_linfo + 6006 ((i + dead_insns) * test->line_info_rec_size); 6007 if (CHECK(linfo[i].insn_off <= linfo[i - 1].insn_off, 6008 "linfo[%u].insn_off:%u <= linfo[%u].insn_off:%u", 6009 i, linfo[i].insn_off, 6010 i - 1, linfo[i - 1].insn_off)) { 6011 err = -1; 6012 goto done; 6013 } 6014 if (CHECK(linfo[i].file_name_off != expected_linfo->file_name_off || 6015 linfo[i].line_off != expected_linfo->line_off || 6016 linfo[i].line_col != expected_linfo->line_col, 6017 "linfo[%u] (%u, %u, %u) != (%u, %u, %u)", i, 6018 linfo[i].file_name_off, 6019 linfo[i].line_off, 6020 linfo[i].line_col, 6021 expected_linfo->file_name_off, 6022 expected_linfo->line_off, 6023 expected_linfo->line_col)) { 6024 err = -1; 6025 goto done; 6026 } 6027 } 6028 6029 if (!jited_cnt) { 6030 fprintf(stderr, "not jited. skipping jited_line_info check. "); 6031 err = 0; 6032 goto done; 6033 } 6034 6035 if (CHECK(jited_linfo[0] != jited_ksyms[0], 6036 "jited_linfo[0]:%lx != jited_ksyms[0]:%lx", 6037 (long)(jited_linfo[0]), (long)(jited_ksyms[0]))) { 6038 err = -1; 6039 goto done; 6040 } 6041 6042 ksyms_found = 1; 6043 cur_func_len = jited_func_lens[0]; 6044 cur_func_ksyms = jited_ksyms[0]; 6045 for (i = 1; i < jited_cnt; i++) { 6046 if (ksyms_found < nr_jited_ksyms && 6047 jited_linfo[i] == jited_ksyms[ksyms_found]) { 6048 cur_func_ksyms = jited_ksyms[ksyms_found]; 6049 cur_func_len = jited_ksyms[ksyms_found]; 6050 ksyms_found++; 6051 continue; 6052 } 6053 6054 if (CHECK(jited_linfo[i] <= jited_linfo[i - 1], 6055 "jited_linfo[%u]:%lx <= jited_linfo[%u]:%lx", 6056 i, (long)jited_linfo[i], 6057 i - 1, (long)(jited_linfo[i - 1]))) { 6058 err = -1; 6059 goto done; 6060 } 6061 6062 if (CHECK(jited_linfo[i] - cur_func_ksyms > cur_func_len, 6063 "jited_linfo[%u]:%lx - %lx > %u", 6064 i, (long)jited_linfo[i], (long)cur_func_ksyms, 6065 cur_func_len)) { 6066 err = -1; 6067 goto done; 6068 } 6069 } 6070 6071 if (CHECK(ksyms_found != nr_jited_ksyms, 6072 "ksyms_found:%u != nr_jited_ksyms:%u", 6073 ksyms_found, nr_jited_ksyms)) { 6074 err = -1; 6075 goto done; 6076 } 6077 6078 err = 0; 6079 6080 done: 6081 free(linfo); 6082 free(jited_linfo); 6083 free(jited_ksyms); 6084 free(jited_func_lens); 6085 return err; 6086 } 6087 6088 static void do_test_info_raw(unsigned int test_num) 6089 { 6090 const struct prog_info_raw_test *test = &info_raw_tests[test_num - 1]; 6091 unsigned int raw_btf_size, linfo_str_off, linfo_size; 6092 int btf_fd = -1, prog_fd = -1, err = 0; 6093 void *raw_btf, *patched_linfo = NULL; 6094 const char *ret_next_str; 6095 union bpf_attr attr = {}; 6096 6097 if (!test__start_subtest(test->descr)) 6098 return; 6099 6100 raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, 6101 test->str_sec, test->str_sec_size, 6102 &raw_btf_size, &ret_next_str); 6103 if (!raw_btf) 6104 return; 6105 6106 *btf_log_buf = '\0'; 6107 btf_fd = bpf_load_btf(raw_btf, raw_btf_size, 6108 btf_log_buf, BTF_LOG_BUF_SIZE, 6109 always_log); 6110 free(raw_btf); 6111 6112 if (CHECK(btf_fd == -1, "invalid btf_fd errno:%d", errno)) { 6113 err = -1; 6114 goto done; 6115 } 6116 6117 if (*btf_log_buf && always_log) 6118 fprintf(stderr, "\n%s", btf_log_buf); 6119 *btf_log_buf = '\0'; 6120 6121 linfo_str_off = ret_next_str - test->str_sec; 6122 patched_linfo = patch_name_tbd(test->line_info, 6123 test->str_sec, linfo_str_off, 6124 test->str_sec_size, &linfo_size); 6125 if (IS_ERR(patched_linfo)) { 6126 fprintf(stderr, "error in creating raw bpf_line_info"); 6127 err = -1; 6128 goto done; 6129 } 6130 6131 attr.prog_type = test->prog_type; 6132 attr.insns = ptr_to_u64(test->insns); 6133 attr.insn_cnt = probe_prog_length(test->insns); 6134 attr.license = ptr_to_u64("GPL"); 6135 attr.prog_btf_fd = btf_fd; 6136 attr.func_info_rec_size = test->func_info_rec_size; 6137 attr.func_info_cnt = test->func_info_cnt; 6138 attr.func_info = ptr_to_u64(test->func_info); 6139 attr.log_buf = ptr_to_u64(btf_log_buf); 6140 attr.log_size = BTF_LOG_BUF_SIZE; 6141 attr.log_level = 1; 6142 if (linfo_size) { 6143 attr.line_info_rec_size = test->line_info_rec_size; 6144 attr.line_info = ptr_to_u64(patched_linfo); 6145 attr.line_info_cnt = linfo_size / attr.line_info_rec_size; 6146 } 6147 6148 prog_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr)); 6149 err = ((prog_fd == -1) != test->expected_prog_load_failure); 6150 if (CHECK(err, "prog_fd:%d expected_prog_load_failure:%u errno:%d", 6151 prog_fd, test->expected_prog_load_failure, errno) || 6152 CHECK(test->err_str && !strstr(btf_log_buf, test->err_str), 6153 "expected err_str:%s", test->err_str)) { 6154 err = -1; 6155 goto done; 6156 } 6157 6158 if (prog_fd == -1) 6159 goto done; 6160 6161 err = test_get_finfo(test, prog_fd); 6162 if (err) 6163 goto done; 6164 6165 err = test_get_linfo(test, patched_linfo, 6166 attr.line_info_cnt - test->dead_code_cnt, 6167 prog_fd); 6168 if (err) 6169 goto done; 6170 6171 done: 6172 if (*btf_log_buf && (err || always_log)) 6173 fprintf(stderr, "\n%s", btf_log_buf); 6174 6175 if (btf_fd != -1) 6176 close(btf_fd); 6177 if (prog_fd != -1) 6178 close(prog_fd); 6179 6180 if (!IS_ERR(patched_linfo)) 6181 free(patched_linfo); 6182 } 6183 6184 struct btf_raw_data { 6185 __u32 raw_types[MAX_NR_RAW_U32]; 6186 const char *str_sec; 6187 __u32 str_sec_size; 6188 }; 6189 6190 struct btf_dedup_test { 6191 const char *descr; 6192 struct btf_raw_data input; 6193 struct btf_raw_data expect; 6194 struct btf_dedup_opts opts; 6195 }; 6196 6197 const struct btf_dedup_test dedup_tests[] = { 6198 6199 { 6200 .descr = "dedup: unused strings filtering", 6201 .input = { 6202 .raw_types = { 6203 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 4), 6204 BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 64, 8), 6205 BTF_END_RAW, 6206 }, 6207 BTF_STR_SEC("\0unused\0int\0foo\0bar\0long"), 6208 }, 6209 .expect = { 6210 .raw_types = { 6211 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 6212 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8), 6213 BTF_END_RAW, 6214 }, 6215 BTF_STR_SEC("\0int\0long"), 6216 }, 6217 .opts = { 6218 .dont_resolve_fwds = false, 6219 }, 6220 }, 6221 { 6222 .descr = "dedup: strings deduplication", 6223 .input = { 6224 .raw_types = { 6225 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 6226 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8), 6227 BTF_TYPE_INT_ENC(NAME_NTH(3), BTF_INT_SIGNED, 0, 32, 4), 6228 BTF_TYPE_INT_ENC(NAME_NTH(4), BTF_INT_SIGNED, 0, 64, 8), 6229 BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 32, 4), 6230 BTF_END_RAW, 6231 }, 6232 BTF_STR_SEC("\0int\0long int\0int\0long int\0int"), 6233 }, 6234 .expect = { 6235 .raw_types = { 6236 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 6237 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8), 6238 BTF_END_RAW, 6239 }, 6240 BTF_STR_SEC("\0int\0long int"), 6241 }, 6242 .opts = { 6243 .dont_resolve_fwds = false, 6244 }, 6245 }, 6246 { 6247 .descr = "dedup: struct example #1", 6248 /* 6249 * struct s { 6250 * struct s *next; 6251 * const int *a; 6252 * int b[16]; 6253 * int c; 6254 * } 6255 */ 6256 .input = { 6257 .raw_types = { 6258 /* int */ 6259 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6260 /* int[16] */ 6261 BTF_TYPE_ARRAY_ENC(1, 1, 16), /* [2] */ 6262 /* struct s { */ 6263 BTF_STRUCT_ENC(NAME_NTH(2), 4, 84), /* [3] */ 6264 BTF_MEMBER_ENC(NAME_NTH(3), 4, 0), /* struct s *next; */ 6265 BTF_MEMBER_ENC(NAME_NTH(4), 5, 64), /* const int *a; */ 6266 BTF_MEMBER_ENC(NAME_NTH(5), 2, 128), /* int b[16]; */ 6267 BTF_MEMBER_ENC(NAME_NTH(6), 1, 640), /* int c; */ 6268 /* ptr -> [3] struct s */ 6269 BTF_PTR_ENC(3), /* [4] */ 6270 /* ptr -> [6] const int */ 6271 BTF_PTR_ENC(6), /* [5] */ 6272 /* const -> [1] int */ 6273 BTF_CONST_ENC(1), /* [6] */ 6274 6275 /* full copy of the above */ 6276 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [7] */ 6277 BTF_TYPE_ARRAY_ENC(7, 7, 16), /* [8] */ 6278 BTF_STRUCT_ENC(NAME_NTH(2), 4, 84), /* [9] */ 6279 BTF_MEMBER_ENC(NAME_NTH(3), 10, 0), 6280 BTF_MEMBER_ENC(NAME_NTH(4), 11, 64), 6281 BTF_MEMBER_ENC(NAME_NTH(5), 8, 128), 6282 BTF_MEMBER_ENC(NAME_NTH(6), 7, 640), 6283 BTF_PTR_ENC(9), /* [10] */ 6284 BTF_PTR_ENC(12), /* [11] */ 6285 BTF_CONST_ENC(7), /* [12] */ 6286 BTF_END_RAW, 6287 }, 6288 BTF_STR_SEC("\0int\0s\0next\0a\0b\0c\0"), 6289 }, 6290 .expect = { 6291 .raw_types = { 6292 /* int */ 6293 BTF_TYPE_INT_ENC(NAME_NTH(4), BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6294 /* int[16] */ 6295 BTF_TYPE_ARRAY_ENC(1, 1, 16), /* [2] */ 6296 /* struct s { */ 6297 BTF_STRUCT_ENC(NAME_NTH(6), 4, 84), /* [3] */ 6298 BTF_MEMBER_ENC(NAME_NTH(5), 4, 0), /* struct s *next; */ 6299 BTF_MEMBER_ENC(NAME_NTH(1), 5, 64), /* const int *a; */ 6300 BTF_MEMBER_ENC(NAME_NTH(2), 2, 128), /* int b[16]; */ 6301 BTF_MEMBER_ENC(NAME_NTH(3), 1, 640), /* int c; */ 6302 /* ptr -> [3] struct s */ 6303 BTF_PTR_ENC(3), /* [4] */ 6304 /* ptr -> [6] const int */ 6305 BTF_PTR_ENC(6), /* [5] */ 6306 /* const -> [1] int */ 6307 BTF_CONST_ENC(1), /* [6] */ 6308 BTF_END_RAW, 6309 }, 6310 BTF_STR_SEC("\0a\0b\0c\0int\0next\0s"), 6311 }, 6312 .opts = { 6313 .dont_resolve_fwds = false, 6314 }, 6315 }, 6316 { 6317 .descr = "dedup: struct <-> fwd resolution w/ hash collision", 6318 /* 6319 * // CU 1: 6320 * struct x; 6321 * struct s { 6322 * struct x *x; 6323 * }; 6324 * // CU 2: 6325 * struct x {}; 6326 * struct s { 6327 * struct x *x; 6328 * }; 6329 */ 6330 .input = { 6331 .raw_types = { 6332 /* CU 1 */ 6333 BTF_FWD_ENC(NAME_TBD, 0 /* struct fwd */), /* [1] fwd x */ 6334 BTF_PTR_ENC(1), /* [2] ptr -> [1] */ 6335 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [3] struct s */ 6336 BTF_MEMBER_ENC(NAME_TBD, 2, 0), 6337 /* CU 2 */ 6338 BTF_STRUCT_ENC(NAME_TBD, 0, 0), /* [4] struct x */ 6339 BTF_PTR_ENC(4), /* [5] ptr -> [4] */ 6340 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [6] struct s */ 6341 BTF_MEMBER_ENC(NAME_TBD, 5, 0), 6342 BTF_END_RAW, 6343 }, 6344 BTF_STR_SEC("\0x\0s\0x\0x\0s\0x\0"), 6345 }, 6346 .expect = { 6347 .raw_types = { 6348 BTF_PTR_ENC(3), /* [1] ptr -> [3] */ 6349 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [2] struct s */ 6350 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 6351 BTF_STRUCT_ENC(NAME_NTH(2), 0, 0), /* [3] struct x */ 6352 BTF_END_RAW, 6353 }, 6354 BTF_STR_SEC("\0s\0x"), 6355 }, 6356 .opts = { 6357 .dont_resolve_fwds = false, 6358 .dedup_table_size = 1, /* force hash collisions */ 6359 }, 6360 }, 6361 { 6362 .descr = "dedup: void equiv check", 6363 /* 6364 * // CU 1: 6365 * struct s { 6366 * struct {} *x; 6367 * }; 6368 * // CU 2: 6369 * struct s { 6370 * int *x; 6371 * }; 6372 */ 6373 .input = { 6374 .raw_types = { 6375 /* CU 1 */ 6376 BTF_STRUCT_ENC(0, 0, 1), /* [1] struct {} */ 6377 BTF_PTR_ENC(1), /* [2] ptr -> [1] */ 6378 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [3] struct s */ 6379 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 6380 /* CU 2 */ 6381 BTF_PTR_ENC(0), /* [4] ptr -> void */ 6382 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [5] struct s */ 6383 BTF_MEMBER_ENC(NAME_NTH(2), 4, 0), 6384 BTF_END_RAW, 6385 }, 6386 BTF_STR_SEC("\0s\0x"), 6387 }, 6388 .expect = { 6389 .raw_types = { 6390 /* CU 1 */ 6391 BTF_STRUCT_ENC(0, 0, 1), /* [1] struct {} */ 6392 BTF_PTR_ENC(1), /* [2] ptr -> [1] */ 6393 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [3] struct s */ 6394 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), 6395 /* CU 2 */ 6396 BTF_PTR_ENC(0), /* [4] ptr -> void */ 6397 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [5] struct s */ 6398 BTF_MEMBER_ENC(NAME_NTH(2), 4, 0), 6399 BTF_END_RAW, 6400 }, 6401 BTF_STR_SEC("\0s\0x"), 6402 }, 6403 .opts = { 6404 .dont_resolve_fwds = false, 6405 .dedup_table_size = 1, /* force hash collisions */ 6406 }, 6407 }, 6408 { 6409 .descr = "dedup: all possible kinds (no duplicates)", 6410 .input = { 6411 .raw_types = { 6412 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 8), /* [1] int */ 6413 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 4), /* [2] enum */ 6414 BTF_ENUM_ENC(NAME_TBD, 0), 6415 BTF_ENUM_ENC(NAME_TBD, 1), 6416 BTF_FWD_ENC(NAME_TBD, 1 /* union kind_flag */), /* [3] fwd */ 6417 BTF_TYPE_ARRAY_ENC(2, 1, 7), /* [4] array */ 6418 BTF_STRUCT_ENC(NAME_TBD, 1, 4), /* [5] struct */ 6419 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 6420 BTF_UNION_ENC(NAME_TBD, 1, 4), /* [6] union */ 6421 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 6422 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [7] typedef */ 6423 BTF_PTR_ENC(0), /* [8] ptr */ 6424 BTF_CONST_ENC(8), /* [9] const */ 6425 BTF_VOLATILE_ENC(8), /* [10] volatile */ 6426 BTF_RESTRICT_ENC(8), /* [11] restrict */ 6427 BTF_FUNC_PROTO_ENC(1, 2), /* [12] func_proto */ 6428 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6429 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 8), 6430 BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */ 6431 BTF_END_RAW, 6432 }, 6433 BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M"), 6434 }, 6435 .expect = { 6436 .raw_types = { 6437 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 8), /* [1] int */ 6438 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 4), /* [2] enum */ 6439 BTF_ENUM_ENC(NAME_TBD, 0), 6440 BTF_ENUM_ENC(NAME_TBD, 1), 6441 BTF_FWD_ENC(NAME_TBD, 1 /* union kind_flag */), /* [3] fwd */ 6442 BTF_TYPE_ARRAY_ENC(2, 1, 7), /* [4] array */ 6443 BTF_STRUCT_ENC(NAME_TBD, 1, 4), /* [5] struct */ 6444 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 6445 BTF_UNION_ENC(NAME_TBD, 1, 4), /* [6] union */ 6446 BTF_MEMBER_ENC(NAME_TBD, 1, 0), 6447 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [7] typedef */ 6448 BTF_PTR_ENC(0), /* [8] ptr */ 6449 BTF_CONST_ENC(8), /* [9] const */ 6450 BTF_VOLATILE_ENC(8), /* [10] volatile */ 6451 BTF_RESTRICT_ENC(8), /* [11] restrict */ 6452 BTF_FUNC_PROTO_ENC(1, 2), /* [12] func_proto */ 6453 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), 6454 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 8), 6455 BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */ 6456 BTF_END_RAW, 6457 }, 6458 BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M"), 6459 }, 6460 .opts = { 6461 .dont_resolve_fwds = false, 6462 }, 6463 }, 6464 { 6465 .descr = "dedup: no int duplicates", 6466 .input = { 6467 .raw_types = { 6468 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 8), 6469 /* different name */ 6470 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 8), 6471 /* different encoding */ 6472 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_CHAR, 0, 32, 8), 6473 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_BOOL, 0, 32, 8), 6474 /* different bit offset */ 6475 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 8, 32, 8), 6476 /* different bit size */ 6477 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 27, 8), 6478 /* different byte size */ 6479 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 6480 BTF_END_RAW, 6481 }, 6482 BTF_STR_SEC("\0int\0some other int"), 6483 }, 6484 .expect = { 6485 .raw_types = { 6486 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 8), 6487 /* different name */ 6488 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 8), 6489 /* different encoding */ 6490 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_CHAR, 0, 32, 8), 6491 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_BOOL, 0, 32, 8), 6492 /* different bit offset */ 6493 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 8, 32, 8), 6494 /* different bit size */ 6495 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 27, 8), 6496 /* different byte size */ 6497 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), 6498 BTF_END_RAW, 6499 }, 6500 BTF_STR_SEC("\0int\0some other int"), 6501 }, 6502 .opts = { 6503 .dont_resolve_fwds = false, 6504 }, 6505 }, 6506 { 6507 .descr = "dedup: enum fwd resolution", 6508 .input = { 6509 .raw_types = { 6510 /* [1] fwd enum 'e1' before full enum */ 6511 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4), 6512 /* [2] full enum 'e1' after fwd */ 6513 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 6514 BTF_ENUM_ENC(NAME_NTH(2), 123), 6515 /* [3] full enum 'e2' before fwd */ 6516 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 6517 BTF_ENUM_ENC(NAME_NTH(4), 456), 6518 /* [4] fwd enum 'e2' after full enum */ 6519 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4), 6520 /* [5] incompatible fwd enum with different size */ 6521 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 1), 6522 /* [6] incompatible full enum with different value */ 6523 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 6524 BTF_ENUM_ENC(NAME_NTH(2), 321), 6525 BTF_END_RAW, 6526 }, 6527 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), 6528 }, 6529 .expect = { 6530 .raw_types = { 6531 /* [1] full enum 'e1' */ 6532 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 6533 BTF_ENUM_ENC(NAME_NTH(2), 123), 6534 /* [2] full enum 'e2' */ 6535 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 6536 BTF_ENUM_ENC(NAME_NTH(4), 456), 6537 /* [3] incompatible fwd enum with different size */ 6538 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 1), 6539 /* [4] incompatible full enum with different value */ 6540 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), 6541 BTF_ENUM_ENC(NAME_NTH(2), 321), 6542 BTF_END_RAW, 6543 }, 6544 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), 6545 }, 6546 .opts = { 6547 .dont_resolve_fwds = false, 6548 }, 6549 }, 6550 { 6551 .descr = "dedup: datasec and vars pass-through", 6552 .input = { 6553 .raw_types = { 6554 /* int */ 6555 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6556 /* static int t */ 6557 BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [2] */ 6558 /* .bss section */ /* [3] */ 6559 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 6560 BTF_VAR_SECINFO_ENC(2, 0, 4), 6561 /* int, referenced from [5] */ 6562 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [4] */ 6563 /* another static int t */ 6564 BTF_VAR_ENC(NAME_NTH(2), 4, 0), /* [5] */ 6565 /* another .bss section */ /* [6] */ 6566 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 6567 BTF_VAR_SECINFO_ENC(5, 0, 4), 6568 BTF_END_RAW, 6569 }, 6570 BTF_STR_SEC("\0.bss\0t"), 6571 }, 6572 .expect = { 6573 .raw_types = { 6574 /* int */ 6575 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ 6576 /* static int t */ 6577 BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [2] */ 6578 /* .bss section */ /* [3] */ 6579 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 6580 BTF_VAR_SECINFO_ENC(2, 0, 4), 6581 /* another static int t */ 6582 BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [4] */ 6583 /* another .bss section */ /* [5] */ 6584 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), 6585 BTF_VAR_SECINFO_ENC(4, 0, 4), 6586 BTF_END_RAW, 6587 }, 6588 BTF_STR_SEC("\0.bss\0t"), 6589 }, 6590 .opts = { 6591 .dont_resolve_fwds = false, 6592 .dedup_table_size = 1 6593 }, 6594 }, 6595 6596 }; 6597 6598 static int btf_type_size(const struct btf_type *t) 6599 { 6600 int base_size = sizeof(struct btf_type); 6601 __u16 vlen = BTF_INFO_VLEN(t->info); 6602 __u16 kind = BTF_INFO_KIND(t->info); 6603 6604 switch (kind) { 6605 case BTF_KIND_FWD: 6606 case BTF_KIND_CONST: 6607 case BTF_KIND_VOLATILE: 6608 case BTF_KIND_RESTRICT: 6609 case BTF_KIND_PTR: 6610 case BTF_KIND_TYPEDEF: 6611 case BTF_KIND_FUNC: 6612 return base_size; 6613 case BTF_KIND_INT: 6614 return base_size + sizeof(__u32); 6615 case BTF_KIND_ENUM: 6616 return base_size + vlen * sizeof(struct btf_enum); 6617 case BTF_KIND_ARRAY: 6618 return base_size + sizeof(struct btf_array); 6619 case BTF_KIND_STRUCT: 6620 case BTF_KIND_UNION: 6621 return base_size + vlen * sizeof(struct btf_member); 6622 case BTF_KIND_FUNC_PROTO: 6623 return base_size + vlen * sizeof(struct btf_param); 6624 case BTF_KIND_VAR: 6625 return base_size + sizeof(struct btf_var); 6626 case BTF_KIND_DATASEC: 6627 return base_size + vlen * sizeof(struct btf_var_secinfo); 6628 default: 6629 fprintf(stderr, "Unsupported BTF_KIND:%u\n", kind); 6630 return -EINVAL; 6631 } 6632 } 6633 6634 static void dump_btf_strings(const char *strs, __u32 len) 6635 { 6636 const char *cur = strs; 6637 int i = 0; 6638 6639 while (cur < strs + len) { 6640 fprintf(stderr, "string #%d: '%s'\n", i, cur); 6641 cur += strlen(cur) + 1; 6642 i++; 6643 } 6644 } 6645 6646 static void do_test_dedup(unsigned int test_num) 6647 { 6648 const struct btf_dedup_test *test = &dedup_tests[test_num - 1]; 6649 __u32 test_nr_types, expect_nr_types, test_btf_size, expect_btf_size; 6650 const struct btf_header *test_hdr, *expect_hdr; 6651 struct btf *test_btf = NULL, *expect_btf = NULL; 6652 const void *test_btf_data, *expect_btf_data; 6653 const char *ret_test_next_str, *ret_expect_next_str; 6654 const char *test_strs, *expect_strs; 6655 const char *test_str_cur, *test_str_end; 6656 const char *expect_str_cur, *expect_str_end; 6657 unsigned int raw_btf_size; 6658 void *raw_btf; 6659 int err = 0, i; 6660 6661 if (!test__start_subtest(test->descr)) 6662 return; 6663 6664 raw_btf = btf_raw_create(&hdr_tmpl, test->input.raw_types, 6665 test->input.str_sec, test->input.str_sec_size, 6666 &raw_btf_size, &ret_test_next_str); 6667 if (!raw_btf) 6668 return; 6669 6670 test_btf = btf__new((__u8 *)raw_btf, raw_btf_size); 6671 free(raw_btf); 6672 if (CHECK(IS_ERR(test_btf), "invalid test_btf errno:%ld", 6673 PTR_ERR(test_btf))) { 6674 err = -1; 6675 goto done; 6676 } 6677 6678 raw_btf = btf_raw_create(&hdr_tmpl, test->expect.raw_types, 6679 test->expect.str_sec, 6680 test->expect.str_sec_size, 6681 &raw_btf_size, &ret_expect_next_str); 6682 if (!raw_btf) 6683 return; 6684 expect_btf = btf__new((__u8 *)raw_btf, raw_btf_size); 6685 free(raw_btf); 6686 if (CHECK(IS_ERR(expect_btf), "invalid expect_btf errno:%ld", 6687 PTR_ERR(expect_btf))) { 6688 err = -1; 6689 goto done; 6690 } 6691 6692 err = btf__dedup(test_btf, NULL, &test->opts); 6693 if (CHECK(err, "btf_dedup failed errno:%d", err)) { 6694 err = -1; 6695 goto done; 6696 } 6697 6698 test_btf_data = btf__get_raw_data(test_btf, &test_btf_size); 6699 expect_btf_data = btf__get_raw_data(expect_btf, &expect_btf_size); 6700 if (CHECK(test_btf_size != expect_btf_size, 6701 "test_btf_size:%u != expect_btf_size:%u", 6702 test_btf_size, expect_btf_size)) { 6703 err = -1; 6704 goto done; 6705 } 6706 6707 test_hdr = test_btf_data; 6708 test_strs = test_btf_data + sizeof(*test_hdr) + test_hdr->str_off; 6709 expect_hdr = expect_btf_data; 6710 expect_strs = expect_btf_data + sizeof(*test_hdr) + expect_hdr->str_off; 6711 if (CHECK(test_hdr->str_len != expect_hdr->str_len, 6712 "test_hdr->str_len:%u != expect_hdr->str_len:%u", 6713 test_hdr->str_len, expect_hdr->str_len)) { 6714 fprintf(stderr, "\ntest strings:\n"); 6715 dump_btf_strings(test_strs, test_hdr->str_len); 6716 fprintf(stderr, "\nexpected strings:\n"); 6717 dump_btf_strings(expect_strs, expect_hdr->str_len); 6718 err = -1; 6719 goto done; 6720 } 6721 6722 test_str_cur = test_strs; 6723 test_str_end = test_strs + test_hdr->str_len; 6724 expect_str_cur = expect_strs; 6725 expect_str_end = expect_strs + expect_hdr->str_len; 6726 while (test_str_cur < test_str_end && expect_str_cur < expect_str_end) { 6727 size_t test_len, expect_len; 6728 6729 test_len = strlen(test_str_cur); 6730 expect_len = strlen(expect_str_cur); 6731 if (CHECK(test_len != expect_len, 6732 "test_len:%zu != expect_len:%zu " 6733 "(test_str:%s, expect_str:%s)", 6734 test_len, expect_len, test_str_cur, expect_str_cur)) { 6735 err = -1; 6736 goto done; 6737 } 6738 if (CHECK(strcmp(test_str_cur, expect_str_cur), 6739 "test_str:%s != expect_str:%s", 6740 test_str_cur, expect_str_cur)) { 6741 err = -1; 6742 goto done; 6743 } 6744 test_str_cur += test_len + 1; 6745 expect_str_cur += expect_len + 1; 6746 } 6747 if (CHECK(test_str_cur != test_str_end, 6748 "test_str_cur:%p != test_str_end:%p", 6749 test_str_cur, test_str_end)) { 6750 err = -1; 6751 goto done; 6752 } 6753 6754 test_nr_types = btf__get_nr_types(test_btf); 6755 expect_nr_types = btf__get_nr_types(expect_btf); 6756 if (CHECK(test_nr_types != expect_nr_types, 6757 "test_nr_types:%u != expect_nr_types:%u", 6758 test_nr_types, expect_nr_types)) { 6759 err = -1; 6760 goto done; 6761 } 6762 6763 for (i = 1; i <= test_nr_types; i++) { 6764 const struct btf_type *test_type, *expect_type; 6765 int test_size, expect_size; 6766 6767 test_type = btf__type_by_id(test_btf, i); 6768 expect_type = btf__type_by_id(expect_btf, i); 6769 test_size = btf_type_size(test_type); 6770 expect_size = btf_type_size(expect_type); 6771 6772 if (CHECK(test_size != expect_size, 6773 "type #%d: test_size:%d != expect_size:%u", 6774 i, test_size, expect_size)) { 6775 err = -1; 6776 goto done; 6777 } 6778 if (CHECK(memcmp((void *)test_type, 6779 (void *)expect_type, 6780 test_size), 6781 "type #%d: contents differ", i)) { 6782 err = -1; 6783 goto done; 6784 } 6785 } 6786 6787 done: 6788 if (!IS_ERR(test_btf)) 6789 btf__free(test_btf); 6790 if (!IS_ERR(expect_btf)) 6791 btf__free(expect_btf); 6792 } 6793 6794 void test_btf(void) 6795 { 6796 int i; 6797 6798 always_log = env.verbosity > VERBOSE_NONE; 6799 6800 for (i = 1; i <= ARRAY_SIZE(raw_tests); i++) 6801 do_test_raw(i); 6802 for (i = 1; i <= ARRAY_SIZE(get_info_tests); i++) 6803 do_test_get_info(i); 6804 for (i = 1; i <= ARRAY_SIZE(file_tests); i++) 6805 do_test_file(i); 6806 for (i = 1; i <= ARRAY_SIZE(info_raw_tests); i++) 6807 do_test_info_raw(i); 6808 for (i = 1; i <= ARRAY_SIZE(dedup_tests); i++) 6809 do_test_dedup(i); 6810 test_pprint(); 6811 } 6812