1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2020 Facebook */ 3 #include <test_progs.h> 4 #include <bpf/btf.h> 5 #include "btf_helpers.h" 6 7 static void gen_btf(struct btf *btf) 8 { 9 const struct btf_var_secinfo *vi; 10 const struct btf_type *t; 11 const struct btf_member *m; 12 const struct btf_enum *v; 13 const struct btf_param *p; 14 int id, err, str_off; 15 16 str_off = btf__find_str(btf, "int"); 17 ASSERT_EQ(str_off, -ENOENT, "int_str_missing_off"); 18 19 str_off = btf__add_str(btf, "int"); 20 ASSERT_EQ(str_off, 1, "int_str_off"); 21 22 str_off = btf__find_str(btf, "int"); 23 ASSERT_EQ(str_off, 1, "int_str_found_off"); 24 25 /* BTF_KIND_INT */ 26 id = btf__add_int(btf, "int", 4, BTF_INT_SIGNED); 27 ASSERT_EQ(id, 1, "int_id"); 28 29 t = btf__type_by_id(btf, 1); 30 /* should re-use previously added "int" string */ 31 ASSERT_EQ(t->name_off, str_off, "int_name_off"); 32 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "int", "int_name"); 33 ASSERT_EQ(btf_kind(t), BTF_KIND_INT, "int_kind"); 34 ASSERT_EQ(t->size, 4, "int_sz"); 35 ASSERT_EQ(btf_int_encoding(t), BTF_INT_SIGNED, "int_enc"); 36 ASSERT_EQ(btf_int_bits(t), 32, "int_bits"); 37 ASSERT_STREQ(btf_type_raw_dump(btf, 1), 38 "[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED", "raw_dump"); 39 40 /* invalid int size */ 41 id = btf__add_int(btf, "bad sz int", 7, 0); 42 ASSERT_ERR(id, "int_bad_sz"); 43 /* invalid encoding */ 44 id = btf__add_int(btf, "bad enc int", 4, 123); 45 ASSERT_ERR(id, "int_bad_enc"); 46 /* NULL name */ 47 id = btf__add_int(btf, NULL, 4, 0); 48 ASSERT_ERR(id, "int_bad_null_name"); 49 /* empty name */ 50 id = btf__add_int(btf, "", 4, 0); 51 ASSERT_ERR(id, "int_bad_empty_name"); 52 53 /* PTR/CONST/VOLATILE/RESTRICT */ 54 id = btf__add_ptr(btf, 1); 55 ASSERT_EQ(id, 2, "ptr_id"); 56 t = btf__type_by_id(btf, 2); 57 ASSERT_EQ(btf_kind(t), BTF_KIND_PTR, "ptr_kind"); 58 ASSERT_EQ(t->type, 1, "ptr_type"); 59 ASSERT_STREQ(btf_type_raw_dump(btf, 2), 60 "[2] PTR '(anon)' type_id=1", "raw_dump"); 61 62 id = btf__add_const(btf, 5); /* points forward to restrict */ 63 ASSERT_EQ(id, 3, "const_id"); 64 t = btf__type_by_id(btf, 3); 65 ASSERT_EQ(btf_kind(t), BTF_KIND_CONST, "const_kind"); 66 ASSERT_EQ(t->type, 5, "const_type"); 67 ASSERT_STREQ(btf_type_raw_dump(btf, 3), 68 "[3] CONST '(anon)' type_id=5", "raw_dump"); 69 70 id = btf__add_volatile(btf, 3); 71 ASSERT_EQ(id, 4, "volatile_id"); 72 t = btf__type_by_id(btf, 4); 73 ASSERT_EQ(btf_kind(t), BTF_KIND_VOLATILE, "volatile_kind"); 74 ASSERT_EQ(t->type, 3, "volatile_type"); 75 ASSERT_STREQ(btf_type_raw_dump(btf, 4), 76 "[4] VOLATILE '(anon)' type_id=3", "raw_dump"); 77 78 id = btf__add_restrict(btf, 4); 79 ASSERT_EQ(id, 5, "restrict_id"); 80 t = btf__type_by_id(btf, 5); 81 ASSERT_EQ(btf_kind(t), BTF_KIND_RESTRICT, "restrict_kind"); 82 ASSERT_EQ(t->type, 4, "restrict_type"); 83 ASSERT_STREQ(btf_type_raw_dump(btf, 5), 84 "[5] RESTRICT '(anon)' type_id=4", "raw_dump"); 85 86 /* ARRAY */ 87 id = btf__add_array(btf, 1, 2, 10); /* int *[10] */ 88 ASSERT_EQ(id, 6, "array_id"); 89 t = btf__type_by_id(btf, 6); 90 ASSERT_EQ(btf_kind(t), BTF_KIND_ARRAY, "array_kind"); 91 ASSERT_EQ(btf_array(t)->index_type, 1, "array_index_type"); 92 ASSERT_EQ(btf_array(t)->type, 2, "array_elem_type"); 93 ASSERT_EQ(btf_array(t)->nelems, 10, "array_nelems"); 94 ASSERT_STREQ(btf_type_raw_dump(btf, 6), 95 "[6] ARRAY '(anon)' type_id=2 index_type_id=1 nr_elems=10", "raw_dump"); 96 97 /* STRUCT */ 98 err = btf__add_field(btf, "field", 1, 0, 0); 99 ASSERT_ERR(err, "no_struct_field"); 100 id = btf__add_struct(btf, "s1", 8); 101 ASSERT_EQ(id, 7, "struct_id"); 102 err = btf__add_field(btf, "f1", 1, 0, 0); 103 ASSERT_OK(err, "f1_res"); 104 err = btf__add_field(btf, "f2", 1, 32, 16); 105 ASSERT_OK(err, "f2_res"); 106 107 t = btf__type_by_id(btf, 7); 108 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "s1", "struct_name"); 109 ASSERT_EQ(btf_kind(t), BTF_KIND_STRUCT, "struct_kind"); 110 ASSERT_EQ(btf_vlen(t), 2, "struct_vlen"); 111 ASSERT_EQ(btf_kflag(t), true, "struct_kflag"); 112 ASSERT_EQ(t->size, 8, "struct_sz"); 113 m = btf_members(t) + 0; 114 ASSERT_STREQ(btf__str_by_offset(btf, m->name_off), "f1", "f1_name"); 115 ASSERT_EQ(m->type, 1, "f1_type"); 116 ASSERT_EQ(btf_member_bit_offset(t, 0), 0, "f1_bit_off"); 117 ASSERT_EQ(btf_member_bitfield_size(t, 0), 0, "f1_bit_sz"); 118 m = btf_members(t) + 1; 119 ASSERT_STREQ(btf__str_by_offset(btf, m->name_off), "f2", "f2_name"); 120 ASSERT_EQ(m->type, 1, "f2_type"); 121 ASSERT_EQ(btf_member_bit_offset(t, 1), 32, "f2_bit_off"); 122 ASSERT_EQ(btf_member_bitfield_size(t, 1), 16, "f2_bit_sz"); 123 ASSERT_STREQ(btf_type_raw_dump(btf, 7), 124 "[7] STRUCT 's1' size=8 vlen=2\n" 125 "\t'f1' type_id=1 bits_offset=0\n" 126 "\t'f2' type_id=1 bits_offset=32 bitfield_size=16", "raw_dump"); 127 128 /* UNION */ 129 id = btf__add_union(btf, "u1", 8); 130 ASSERT_EQ(id, 8, "union_id"); 131 132 /* invalid, non-zero offset */ 133 err = btf__add_field(btf, "field", 1, 1, 0); 134 ASSERT_ERR(err, "no_struct_field"); 135 136 err = btf__add_field(btf, "f1", 1, 0, 16); 137 ASSERT_OK(err, "f1_res"); 138 139 t = btf__type_by_id(btf, 8); 140 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "u1", "union_name"); 141 ASSERT_EQ(btf_kind(t), BTF_KIND_UNION, "union_kind"); 142 ASSERT_EQ(btf_vlen(t), 1, "union_vlen"); 143 ASSERT_EQ(btf_kflag(t), true, "union_kflag"); 144 ASSERT_EQ(t->size, 8, "union_sz"); 145 m = btf_members(t) + 0; 146 ASSERT_STREQ(btf__str_by_offset(btf, m->name_off), "f1", "f1_name"); 147 ASSERT_EQ(m->type, 1, "f1_type"); 148 ASSERT_EQ(btf_member_bit_offset(t, 0), 0, "f1_bit_off"); 149 ASSERT_EQ(btf_member_bitfield_size(t, 0), 16, "f1_bit_sz"); 150 ASSERT_STREQ(btf_type_raw_dump(btf, 8), 151 "[8] UNION 'u1' size=8 vlen=1\n" 152 "\t'f1' type_id=1 bits_offset=0 bitfield_size=16", "raw_dump"); 153 154 /* ENUM */ 155 id = btf__add_enum(btf, "e1", 4); 156 ASSERT_EQ(id, 9, "enum_id"); 157 err = btf__add_enum_value(btf, "v1", 1); 158 ASSERT_OK(err, "v1_res"); 159 err = btf__add_enum_value(btf, "v2", 2); 160 ASSERT_OK(err, "v2_res"); 161 162 t = btf__type_by_id(btf, 9); 163 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "e1", "enum_name"); 164 ASSERT_EQ(btf_kind(t), BTF_KIND_ENUM, "enum_kind"); 165 ASSERT_EQ(btf_vlen(t), 2, "enum_vlen"); 166 ASSERT_EQ(t->size, 4, "enum_sz"); 167 v = btf_enum(t) + 0; 168 ASSERT_STREQ(btf__str_by_offset(btf, v->name_off), "v1", "v1_name"); 169 ASSERT_EQ(v->val, 1, "v1_val"); 170 v = btf_enum(t) + 1; 171 ASSERT_STREQ(btf__str_by_offset(btf, v->name_off), "v2", "v2_name"); 172 ASSERT_EQ(v->val, 2, "v2_val"); 173 ASSERT_STREQ(btf_type_raw_dump(btf, 9), 174 "[9] ENUM 'e1' size=4 vlen=2\n" 175 "\t'v1' val=1\n" 176 "\t'v2' val=2", "raw_dump"); 177 178 /* FWDs */ 179 id = btf__add_fwd(btf, "struct_fwd", BTF_FWD_STRUCT); 180 ASSERT_EQ(id, 10, "struct_fwd_id"); 181 t = btf__type_by_id(btf, 10); 182 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "struct_fwd", "fwd_name"); 183 ASSERT_EQ(btf_kind(t), BTF_KIND_FWD, "fwd_kind"); 184 ASSERT_EQ(btf_kflag(t), 0, "fwd_kflag"); 185 ASSERT_STREQ(btf_type_raw_dump(btf, 10), 186 "[10] FWD 'struct_fwd' fwd_kind=struct", "raw_dump"); 187 188 id = btf__add_fwd(btf, "union_fwd", BTF_FWD_UNION); 189 ASSERT_EQ(id, 11, "union_fwd_id"); 190 t = btf__type_by_id(btf, 11); 191 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "union_fwd", "fwd_name"); 192 ASSERT_EQ(btf_kind(t), BTF_KIND_FWD, "fwd_kind"); 193 ASSERT_EQ(btf_kflag(t), 1, "fwd_kflag"); 194 ASSERT_STREQ(btf_type_raw_dump(btf, 11), 195 "[11] FWD 'union_fwd' fwd_kind=union", "raw_dump"); 196 197 id = btf__add_fwd(btf, "enum_fwd", BTF_FWD_ENUM); 198 ASSERT_EQ(id, 12, "enum_fwd_id"); 199 t = btf__type_by_id(btf, 12); 200 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "enum_fwd", "fwd_name"); 201 ASSERT_EQ(btf_kind(t), BTF_KIND_ENUM, "enum_fwd_kind"); 202 ASSERT_EQ(btf_vlen(t), 0, "enum_fwd_kind"); 203 ASSERT_EQ(t->size, 4, "enum_fwd_sz"); 204 ASSERT_STREQ(btf_type_raw_dump(btf, 12), 205 "[12] ENUM 'enum_fwd' size=4 vlen=0", "raw_dump"); 206 207 /* TYPEDEF */ 208 id = btf__add_typedef(btf, "typedef1", 1); 209 ASSERT_EQ(id, 13, "typedef_fwd_id"); 210 t = btf__type_by_id(btf, 13); 211 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "typedef1", "typedef_name"); 212 ASSERT_EQ(btf_kind(t), BTF_KIND_TYPEDEF, "typedef_kind"); 213 ASSERT_EQ(t->type, 1, "typedef_type"); 214 ASSERT_STREQ(btf_type_raw_dump(btf, 13), 215 "[13] TYPEDEF 'typedef1' type_id=1", "raw_dump"); 216 217 /* FUNC & FUNC_PROTO */ 218 id = btf__add_func(btf, "func1", BTF_FUNC_GLOBAL, 15); 219 ASSERT_EQ(id, 14, "func_id"); 220 t = btf__type_by_id(btf, 14); 221 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "func1", "func_name"); 222 ASSERT_EQ(t->type, 15, "func_type"); 223 ASSERT_EQ(btf_kind(t), BTF_KIND_FUNC, "func_kind"); 224 ASSERT_EQ(btf_vlen(t), BTF_FUNC_GLOBAL, "func_vlen"); 225 ASSERT_STREQ(btf_type_raw_dump(btf, 14), 226 "[14] FUNC 'func1' type_id=15 linkage=global", "raw_dump"); 227 228 id = btf__add_func_proto(btf, 1); 229 ASSERT_EQ(id, 15, "func_proto_id"); 230 err = btf__add_func_param(btf, "p1", 1); 231 ASSERT_OK(err, "p1_res"); 232 err = btf__add_func_param(btf, "p2", 2); 233 ASSERT_OK(err, "p2_res"); 234 235 t = btf__type_by_id(btf, 15); 236 ASSERT_EQ(btf_kind(t), BTF_KIND_FUNC_PROTO, "func_proto_kind"); 237 ASSERT_EQ(btf_vlen(t), 2, "func_proto_vlen"); 238 ASSERT_EQ(t->type, 1, "func_proto_ret_type"); 239 p = btf_params(t) + 0; 240 ASSERT_STREQ(btf__str_by_offset(btf, p->name_off), "p1", "p1_name"); 241 ASSERT_EQ(p->type, 1, "p1_type"); 242 p = btf_params(t) + 1; 243 ASSERT_STREQ(btf__str_by_offset(btf, p->name_off), "p2", "p2_name"); 244 ASSERT_EQ(p->type, 2, "p2_type"); 245 ASSERT_STREQ(btf_type_raw_dump(btf, 15), 246 "[15] FUNC_PROTO '(anon)' ret_type_id=1 vlen=2\n" 247 "\t'p1' type_id=1\n" 248 "\t'p2' type_id=2", "raw_dump"); 249 250 /* VAR */ 251 id = btf__add_var(btf, "var1", BTF_VAR_GLOBAL_ALLOCATED, 1); 252 ASSERT_EQ(id, 16, "var_id"); 253 t = btf__type_by_id(btf, 16); 254 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "var1", "var_name"); 255 ASSERT_EQ(btf_kind(t), BTF_KIND_VAR, "var_kind"); 256 ASSERT_EQ(t->type, 1, "var_type"); 257 ASSERT_EQ(btf_var(t)->linkage, BTF_VAR_GLOBAL_ALLOCATED, "var_type"); 258 ASSERT_STREQ(btf_type_raw_dump(btf, 16), 259 "[16] VAR 'var1' type_id=1, linkage=global-alloc", "raw_dump"); 260 261 /* DATASECT */ 262 id = btf__add_datasec(btf, "datasec1", 12); 263 ASSERT_EQ(id, 17, "datasec_id"); 264 err = btf__add_datasec_var_info(btf, 1, 4, 8); 265 ASSERT_OK(err, "v1_res"); 266 267 t = btf__type_by_id(btf, 17); 268 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "datasec1", "datasec_name"); 269 ASSERT_EQ(t->size, 12, "datasec_sz"); 270 ASSERT_EQ(btf_kind(t), BTF_KIND_DATASEC, "datasec_kind"); 271 ASSERT_EQ(btf_vlen(t), 1, "datasec_vlen"); 272 vi = btf_var_secinfos(t) + 0; 273 ASSERT_EQ(vi->type, 1, "v1_type"); 274 ASSERT_EQ(vi->offset, 4, "v1_off"); 275 ASSERT_EQ(vi->size, 8, "v1_sz"); 276 ASSERT_STREQ(btf_type_raw_dump(btf, 17), 277 "[17] DATASEC 'datasec1' size=12 vlen=1\n" 278 "\ttype_id=1 offset=4 size=8", "raw_dump"); 279 280 /* DECL_TAG */ 281 id = btf__add_decl_tag(btf, "tag1", 16, -1); 282 ASSERT_EQ(id, 18, "tag_id"); 283 t = btf__type_by_id(btf, 18); 284 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "tag1", "tag_value"); 285 ASSERT_EQ(btf_kind(t), BTF_KIND_DECL_TAG, "tag_kind"); 286 ASSERT_EQ(t->type, 16, "tag_type"); 287 ASSERT_EQ(btf_decl_tag(t)->component_idx, -1, "tag_component_idx"); 288 ASSERT_STREQ(btf_type_raw_dump(btf, 18), 289 "[18] DECL_TAG 'tag1' type_id=16 component_idx=-1", "raw_dump"); 290 291 id = btf__add_decl_tag(btf, "tag2", 14, 1); 292 ASSERT_EQ(id, 19, "tag_id"); 293 t = btf__type_by_id(btf, 19); 294 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "tag2", "tag_value"); 295 ASSERT_EQ(btf_kind(t), BTF_KIND_DECL_TAG, "tag_kind"); 296 ASSERT_EQ(t->type, 14, "tag_type"); 297 ASSERT_EQ(btf_decl_tag(t)->component_idx, 1, "tag_component_idx"); 298 ASSERT_STREQ(btf_type_raw_dump(btf, 19), 299 "[19] DECL_TAG 'tag2' type_id=14 component_idx=1", "raw_dump"); 300 301 /* TYPE_TAG */ 302 id = btf__add_type_tag(btf, "tag1", 1); 303 ASSERT_EQ(id, 20, "tag_id"); 304 t = btf__type_by_id(btf, 20); 305 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "tag1", "tag_value"); 306 ASSERT_EQ(btf_kind(t), BTF_KIND_TYPE_TAG, "tag_kind"); 307 ASSERT_EQ(t->type, 1, "tag_type"); 308 ASSERT_STREQ(btf_type_raw_dump(btf, 20), 309 "[20] TYPE_TAG 'tag1' type_id=1", "raw_dump"); 310 } 311 312 static void test_btf_add() 313 { 314 struct btf *btf; 315 316 btf = btf__new_empty(); 317 if (!ASSERT_OK_PTR(btf, "new_empty")) 318 return; 319 320 gen_btf(btf); 321 322 VALIDATE_RAW_BTF( 323 btf, 324 "[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED", 325 "[2] PTR '(anon)' type_id=1", 326 "[3] CONST '(anon)' type_id=5", 327 "[4] VOLATILE '(anon)' type_id=3", 328 "[5] RESTRICT '(anon)' type_id=4", 329 "[6] ARRAY '(anon)' type_id=2 index_type_id=1 nr_elems=10", 330 "[7] STRUCT 's1' size=8 vlen=2\n" 331 "\t'f1' type_id=1 bits_offset=0\n" 332 "\t'f2' type_id=1 bits_offset=32 bitfield_size=16", 333 "[8] UNION 'u1' size=8 vlen=1\n" 334 "\t'f1' type_id=1 bits_offset=0 bitfield_size=16", 335 "[9] ENUM 'e1' size=4 vlen=2\n" 336 "\t'v1' val=1\n" 337 "\t'v2' val=2", 338 "[10] FWD 'struct_fwd' fwd_kind=struct", 339 "[11] FWD 'union_fwd' fwd_kind=union", 340 "[12] ENUM 'enum_fwd' size=4 vlen=0", 341 "[13] TYPEDEF 'typedef1' type_id=1", 342 "[14] FUNC 'func1' type_id=15 linkage=global", 343 "[15] FUNC_PROTO '(anon)' ret_type_id=1 vlen=2\n" 344 "\t'p1' type_id=1\n" 345 "\t'p2' type_id=2", 346 "[16] VAR 'var1' type_id=1, linkage=global-alloc", 347 "[17] DATASEC 'datasec1' size=12 vlen=1\n" 348 "\ttype_id=1 offset=4 size=8", 349 "[18] DECL_TAG 'tag1' type_id=16 component_idx=-1", 350 "[19] DECL_TAG 'tag2' type_id=14 component_idx=1", 351 "[20] TYPE_TAG 'tag1' type_id=1"); 352 353 btf__free(btf); 354 } 355 356 static void test_btf_add_btf() 357 { 358 struct btf *btf1 = NULL, *btf2 = NULL; 359 int id; 360 361 btf1 = btf__new_empty(); 362 if (!ASSERT_OK_PTR(btf1, "btf1")) 363 return; 364 365 btf2 = btf__new_empty(); 366 if (!ASSERT_OK_PTR(btf2, "btf2")) 367 goto cleanup; 368 369 gen_btf(btf1); 370 gen_btf(btf2); 371 372 id = btf__add_btf(btf1, btf2); 373 if (!ASSERT_EQ(id, 21, "id")) 374 goto cleanup; 375 376 VALIDATE_RAW_BTF( 377 btf1, 378 "[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED", 379 "[2] PTR '(anon)' type_id=1", 380 "[3] CONST '(anon)' type_id=5", 381 "[4] VOLATILE '(anon)' type_id=3", 382 "[5] RESTRICT '(anon)' type_id=4", 383 "[6] ARRAY '(anon)' type_id=2 index_type_id=1 nr_elems=10", 384 "[7] STRUCT 's1' size=8 vlen=2\n" 385 "\t'f1' type_id=1 bits_offset=0\n" 386 "\t'f2' type_id=1 bits_offset=32 bitfield_size=16", 387 "[8] UNION 'u1' size=8 vlen=1\n" 388 "\t'f1' type_id=1 bits_offset=0 bitfield_size=16", 389 "[9] ENUM 'e1' size=4 vlen=2\n" 390 "\t'v1' val=1\n" 391 "\t'v2' val=2", 392 "[10] FWD 'struct_fwd' fwd_kind=struct", 393 "[11] FWD 'union_fwd' fwd_kind=union", 394 "[12] ENUM 'enum_fwd' size=4 vlen=0", 395 "[13] TYPEDEF 'typedef1' type_id=1", 396 "[14] FUNC 'func1' type_id=15 linkage=global", 397 "[15] FUNC_PROTO '(anon)' ret_type_id=1 vlen=2\n" 398 "\t'p1' type_id=1\n" 399 "\t'p2' type_id=2", 400 "[16] VAR 'var1' type_id=1, linkage=global-alloc", 401 "[17] DATASEC 'datasec1' size=12 vlen=1\n" 402 "\ttype_id=1 offset=4 size=8", 403 "[18] DECL_TAG 'tag1' type_id=16 component_idx=-1", 404 "[19] DECL_TAG 'tag2' type_id=14 component_idx=1", 405 "[20] TYPE_TAG 'tag1' type_id=1", 406 407 /* types appended from the second BTF */ 408 "[21] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED", 409 "[22] PTR '(anon)' type_id=21", 410 "[23] CONST '(anon)' type_id=25", 411 "[24] VOLATILE '(anon)' type_id=23", 412 "[25] RESTRICT '(anon)' type_id=24", 413 "[26] ARRAY '(anon)' type_id=22 index_type_id=21 nr_elems=10", 414 "[27] STRUCT 's1' size=8 vlen=2\n" 415 "\t'f1' type_id=21 bits_offset=0\n" 416 "\t'f2' type_id=21 bits_offset=32 bitfield_size=16", 417 "[28] UNION 'u1' size=8 vlen=1\n" 418 "\t'f1' type_id=21 bits_offset=0 bitfield_size=16", 419 "[29] ENUM 'e1' size=4 vlen=2\n" 420 "\t'v1' val=1\n" 421 "\t'v2' val=2", 422 "[30] FWD 'struct_fwd' fwd_kind=struct", 423 "[31] FWD 'union_fwd' fwd_kind=union", 424 "[32] ENUM 'enum_fwd' size=4 vlen=0", 425 "[33] TYPEDEF 'typedef1' type_id=21", 426 "[34] FUNC 'func1' type_id=35 linkage=global", 427 "[35] FUNC_PROTO '(anon)' ret_type_id=21 vlen=2\n" 428 "\t'p1' type_id=21\n" 429 "\t'p2' type_id=22", 430 "[36] VAR 'var1' type_id=21, linkage=global-alloc", 431 "[37] DATASEC 'datasec1' size=12 vlen=1\n" 432 "\ttype_id=21 offset=4 size=8", 433 "[38] DECL_TAG 'tag1' type_id=36 component_idx=-1", 434 "[39] DECL_TAG 'tag2' type_id=34 component_idx=1", 435 "[40] TYPE_TAG 'tag1' type_id=21"); 436 437 cleanup: 438 btf__free(btf1); 439 btf__free(btf2); 440 } 441 442 void test_btf_write() 443 { 444 if (test__start_subtest("btf_add")) 445 test_btf_add(); 446 if (test__start_subtest("btf_add_btf")) 447 test_btf_add_btf(); 448 } 449