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WIP FPC-III support
[linux/fpc-iii.git] / tools / testing / selftests / bpf / prog_tests / btf.c
blob8ae97e2a4b9deed70ba013f9946d24c0d7d6a7d7
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;
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 expect_str_cur = expect_strs;
6723 expect_str_end = expect_strs + expect_hdr->str_len;
6724 while (expect_str_cur < expect_str_end) {
6725 size_t test_len, expect_len;
6726 int off;
6727
6728 off = btf__find_str(test_btf, expect_str_cur);
6729 if (CHECK(off < 0, "exp str '%s' not found: %d\n", expect_str_cur, off)) {
6730 err = -1;
6731 goto done;
6732 }
6733 test_str_cur = btf__str_by_offset(test_btf, off);
6734
6735 test_len = strlen(test_str_cur);
6736 expect_len = strlen(expect_str_cur);
6737 if (CHECK(test_len != expect_len,
6738 "test_len:%zu != expect_len:%zu "
6739 "(test_str:%s, expect_str:%s)",
6740 test_len, expect_len, test_str_cur, expect_str_cur)) {
6741 err = -1;
6742 goto done;
6743 }
6744 if (CHECK(strcmp(test_str_cur, expect_str_cur),
6745 "test_str:%s != expect_str:%s",
6746 test_str_cur, expect_str_cur)) {
6747 err = -1;
6748 goto done;
6749 }
6750 expect_str_cur += expect_len + 1;
6751 }
6752
6753 test_nr_types = btf__get_nr_types(test_btf);
6754 expect_nr_types = btf__get_nr_types(expect_btf);
6755 if (CHECK(test_nr_types != expect_nr_types,
6756 "test_nr_types:%u != expect_nr_types:%u",
6757 test_nr_types, expect_nr_types)) {
6758 err = -1;
6759 goto done;
6760 }
6761
6762 for (i = 1; i <= test_nr_types; i++) {
6763 const struct btf_type *test_type, *expect_type;
6764 int test_size, expect_size;
6765
6766 test_type = btf__type_by_id(test_btf, i);
6767 expect_type = btf__type_by_id(expect_btf, i);
6768 test_size = btf_type_size(test_type);
6769 expect_size = btf_type_size(expect_type);
6770
6771 if (CHECK(test_size != expect_size,
6772 "type #%d: test_size:%d != expect_size:%u",
6773 i, test_size, expect_size)) {
6774 err = -1;
6775 goto done;
6776 }
6777 if (CHECK(btf_kind(test_type) != btf_kind(expect_type),
6778 "type %d kind: exp %d != got %u\n",
6779 i, btf_kind(expect_type), btf_kind(test_type))) {
6780 err = -1;
6781 goto done;
6782 }
6783 if (CHECK(test_type->info != expect_type->info,
6784 "type %d info: exp %d != got %u\n",
6785 i, expect_type->info, test_type->info)) {
6786 err = -1;
6787 goto done;
6788 }
6789 if (CHECK(test_type->size != expect_type->size,
6790 "type %d size/type: exp %d != got %u\n",
6791 i, expect_type->size, test_type->size)) {
6792 err = -1;
6793 goto done;
6794 }
6795 }
6796
6797 done:
6798 if (!IS_ERR(test_btf))
6799 btf__free(test_btf);
6800 if (!IS_ERR(expect_btf))
6801 btf__free(expect_btf);
6802 }
6803
6804 void test_btf(void)
6805 {
6806 int i;
6807
6808 always_log = env.verbosity > VERBOSE_NONE;
6809
6810 for (i = 1; i <= ARRAY_SIZE(raw_tests); i++)
6811 do_test_raw(i);
6812 for (i = 1; i <= ARRAY_SIZE(get_info_tests); i++)
6813 do_test_get_info(i);
6814 for (i = 1; i <= ARRAY_SIZE(file_tests); i++)
6815 do_test_file(i);
6816 for (i = 1; i <= ARRAY_SIZE(info_raw_tests); i++)
6817 do_test_info_raw(i);
6818 for (i = 1; i <= ARRAY_SIZE(dedup_tests); i++)
6819 do_test_dedup(i);
6820 test_pprint();
6821 }
Linux with added FPC-III support