1
2
3#include <test_progs.h>
4#include <bpf/btf.h>
5#include "btf_helpers.h"
6
7static 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
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
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
41 id = btf__add_int(btf, "bad sz int", 7, 0);
42 ASSERT_ERR(id, "int_bad_sz");
43
44 id = btf__add_int(btf, "bad enc int", 4, 123);
45 ASSERT_ERR(id, "int_bad_enc");
46
47 id = btf__add_int(btf, NULL, 4, 0);
48 ASSERT_ERR(id, "int_bad_null_name");
49
50 id = btf__add_int(btf, "", 4, 0);
51 ASSERT_ERR(id, "int_bad_empty_name");
52
53
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);
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
87 id = btf__add_array(btf, 1, 2, 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
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
129 id = btf__add_union(btf, "u1", 8);
130 ASSERT_EQ(id, 8, "union_id");
131
132
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
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
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
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
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
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
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
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
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
312static 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
356static 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
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
437cleanup:
438 btf__free(btf1);
439 btf__free(btf2);
440}
441
442void 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
