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 <libelf.h>
12 #include <gelf.h>
13 #include <string.h>
14 #include <stdlib.h>
15 #include <stdio.h>
16 #include <stdarg.h>
17 #include <unistd.h>
18 #include <fcntl.h>
19 #include <errno.h>
20 #include <assert.h>
21 #include <bpf/libbpf.h>
22 #include <bpf/btf.h>
23
24 #include "bpf_util.h"
25 #include "../test_btf.h"
26 #include "test_progs.h"
27
28 #define MAX_INSNS 512
29 #define MAX_SUBPROGS 16
30
31 static int duration = 0;
32 static bool always_log;
33
34 #undef CHECK
35 #define CHECK(condition, format...) _CHECK(condition, "check", duration, format)
36
37 #define NAME_TBD 0xdeadb33f
38
39 #define NAME_NTH(N) (0xfffe0000 | N)
40 #define IS_NAME_NTH(X) ((X & 0xffff0000) == 0xfffe0000)
41 #define GET_NAME_NTH_IDX(X) (X & 0x0000ffff)
42
43 #define MAX_NR_RAW_U32 1024
44 #define BTF_LOG_BUF_SIZE 65535
45
46 static char btf_log_buf[BTF_LOG_BUF_SIZE];
47
48 static struct btf_header hdr_tmpl = {
49 .magic = BTF_MAGIC,
50 .version = BTF_VERSION,
51 .hdr_len = sizeof(struct btf_header),
52 };
53
54 /* several different mapv kinds(types) supported by pprint */
55 enum pprint_mapv_kind_t {
56 PPRINT_MAPV_KIND_BASIC = 0,
57 PPRINT_MAPV_KIND_INT128,
58 };
59
60 struct btf_raw_test {
61 const char *descr;
62 const char *str_sec;
63 const char *map_name;
64 const char *err_str;
65 __u32 raw_types[MAX_NR_RAW_U32];
66 __u32 str_sec_size;
67 enum bpf_map_type map_type;
68 __u32 key_size;
69 __u32 value_size;
70 __u32 key_type_id;
71 __u32 value_type_id;
72 __u32 max_entries;
73 bool btf_load_err;
74 bool map_create_err;
75 bool ordered_map;
76 bool lossless_map;
77 bool percpu_map;
78 int hdr_len_delta;
79 int type_off_delta;
80 int str_off_delta;
81 int str_len_delta;
82 enum pprint_mapv_kind_t mapv_kind;
83 };
84
85 #define BTF_STR_SEC(str) \
86 .str_sec = str, .str_sec_size = sizeof(str)
87
88 static struct btf_raw_test raw_tests[] = {
89 /* enum E {
90 * E0,
91 * E1,
92 * };
93 *
94 * struct A {
95 * unsigned long long m;
96 * int n;
97 * char o;
98 * [3 bytes hole]
99 * int p[8];
100 * int q[4][8];
101 * enum E r;
102 * };
103 */
104 {
105 .descr = "struct test #1",
106 .raw_types = {
107 /* int */
108 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
109 /* unsigned long long */
110 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
111 /* char */
112 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
113 /* int[8] */
114 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
115 /* struct A { */ /* [5] */
116 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 6), 180),
117 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
118 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
119 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
120 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
121 BTF_MEMBER_ENC(NAME_TBD, 6, 384),/* int q[4][8] */
122 BTF_MEMBER_ENC(NAME_TBD, 7, 1408), /* enum E r */
123 /* } */
124 /* int[4][8] */
125 BTF_TYPE_ARRAY_ENC(4, 1, 4), /* [6] */
126 /* enum E */ /* [7] */
127 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), sizeof(int)),
128 BTF_ENUM_ENC(NAME_TBD, 0),
129 BTF_ENUM_ENC(NAME_TBD, 1),
130 BTF_END_RAW,
131 },
132 .str_sec = "\0A\0m\0n\0o\0p\0q\0r\0E\0E0\0E1",
133 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0q\0r\0E\0E0\0E1"),
134 .map_type = BPF_MAP_TYPE_ARRAY,
135 .map_name = "struct_test1_map",
136 .key_size = sizeof(int),
137 .value_size = 180,
138 .key_type_id = 1,
139 .value_type_id = 5,
140 .max_entries = 4,
141 },
142
143 /* typedef struct b Struct_B;
144 *
145 * struct A {
146 * int m;
147 * struct b n[4];
148 * const Struct_B o[4];
149 * };
150 *
151 * struct B {
152 * int m;
153 * int n;
154 * };
155 */
156 {
157 .descr = "struct test #2",
158 .raw_types = {
159 /* int */ /* [1] */
160 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
161 /* struct b [4] */ /* [2] */
162 BTF_TYPE_ARRAY_ENC(4, 1, 4),
163
164 /* struct A { */ /* [3] */
165 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 3), 68),
166 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */
167 BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct B n[4] */
168 BTF_MEMBER_ENC(NAME_TBD, 8, 288),/* const Struct_B o[4];*/
169 /* } */
170
171 /* struct B { */ /* [4] */
172 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8),
173 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */
174 BTF_MEMBER_ENC(NAME_TBD, 1, 32),/* int n; */
175 /* } */
176
177 /* const int */ /* [5] */
178 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1),
179 /* typedef struct b Struct_B */ /* [6] */
180 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 4),
181 /* const Struct_B */ /* [7] */
182 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 6),
183 /* const Struct_B [4] */ /* [8] */
184 BTF_TYPE_ARRAY_ENC(7, 1, 4),
185 BTF_END_RAW,
186 },
187 .str_sec = "\0A\0m\0n\0o\0B\0m\0n\0Struct_B",
188 .str_sec_size = sizeof("\0A\0m\0n\0o\0B\0m\0n\0Struct_B"),
189 .map_type = BPF_MAP_TYPE_ARRAY,
190 .map_name = "struct_test2_map",
191 .key_size = sizeof(int),
192 .value_size = 68,
193 .key_type_id = 1,
194 .value_type_id = 3,
195 .max_entries = 4,
196 },
197 {
198 .descr = "struct test #3 Invalid member offset",
199 .raw_types = {
200 /* int */ /* [1] */
201 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
202 /* int64 */ /* [2] */
203 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8),
204
205 /* struct A { */ /* [3] */
206 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 16),
207 BTF_MEMBER_ENC(NAME_TBD, 1, 64), /* int m; */
208 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* int64 n; */
209 /* } */
210 BTF_END_RAW,
211 },
212 .str_sec = "\0A\0m\0n\0",
213 .str_sec_size = sizeof("\0A\0m\0n\0"),
214 .map_type = BPF_MAP_TYPE_ARRAY,
215 .map_name = "struct_test3_map",
216 .key_size = sizeof(int),
217 .value_size = 16,
218 .key_type_id = 1,
219 .value_type_id = 3,
220 .max_entries = 4,
221 .btf_load_err = true,
222 .err_str = "Invalid member bits_offset",
223 },
224 /*
225 * struct A {
226 * unsigned long long m;
227 * int n;
228 * char o;
229 * [3 bytes hole]
230 * int p[8];
231 * };
232 */
233 {
234 .descr = "global data test #1",
235 .raw_types = {
236 /* int */
237 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
238 /* unsigned long long */
239 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
240 /* char */
241 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
242 /* int[8] */
243 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
244 /* struct A { */ /* [5] */
245 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
246 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
247 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
248 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
249 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
250 /* } */
251 BTF_END_RAW,
252 },
253 .str_sec = "\0A\0m\0n\0o\0p",
254 .str_sec_size = sizeof("\0A\0m\0n\0o\0p"),
255 .map_type = BPF_MAP_TYPE_ARRAY,
256 .map_name = "struct_test1_map",
257 .key_size = sizeof(int),
258 .value_size = 48,
259 .key_type_id = 1,
260 .value_type_id = 5,
261 .max_entries = 4,
262 },
263 /*
264 * struct A {
265 * unsigned long long m;
266 * int n;
267 * char o;
268 * [3 bytes hole]
269 * int p[8];
270 * };
271 * static struct A t; <- in .bss
272 */
273 {
274 .descr = "global data test #2",
275 .raw_types = {
276 /* int */
277 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
278 /* unsigned long long */
279 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
280 /* char */
281 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
282 /* int[8] */
283 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
284 /* struct A { */ /* [5] */
285 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
286 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
287 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
288 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
289 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
290 /* } */
291 /* static struct A t */
292 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
293 /* .bss section */ /* [7] */
294 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 48),
295 BTF_VAR_SECINFO_ENC(6, 0, 48),
296 BTF_END_RAW,
297 },
298 .str_sec = "\0A\0m\0n\0o\0p\0t\0.bss",
299 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"),
300 .map_type = BPF_MAP_TYPE_ARRAY,
301 .map_name = ".bss",
302 .key_size = sizeof(int),
303 .value_size = 48,
304 .key_type_id = 0,
305 .value_type_id = 7,
306 .max_entries = 1,
307 },
308 {
309 .descr = "global data test #3",
310 .raw_types = {
311 /* int */
312 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
313 /* static int t */
314 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
315 /* .bss section */ /* [3] */
316 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
317 BTF_VAR_SECINFO_ENC(2, 0, 4),
318 BTF_END_RAW,
319 },
320 .str_sec = "\0t\0.bss",
321 .str_sec_size = sizeof("\0t\0.bss"),
322 .map_type = BPF_MAP_TYPE_ARRAY,
323 .map_name = ".bss",
324 .key_size = sizeof(int),
325 .value_size = 4,
326 .key_type_id = 0,
327 .value_type_id = 3,
328 .max_entries = 1,
329 },
330 {
331 .descr = "global data test #4, unsupported linkage",
332 .raw_types = {
333 /* int */
334 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
335 /* static int t */
336 BTF_VAR_ENC(NAME_TBD, 1, 2), /* [2] */
337 /* .bss section */ /* [3] */
338 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
339 BTF_VAR_SECINFO_ENC(2, 0, 4),
340 BTF_END_RAW,
341 },
342 .str_sec = "\0t\0.bss",
343 .str_sec_size = sizeof("\0t\0.bss"),
344 .map_type = BPF_MAP_TYPE_ARRAY,
345 .map_name = ".bss",
346 .key_size = sizeof(int),
347 .value_size = 4,
348 .key_type_id = 0,
349 .value_type_id = 3,
350 .max_entries = 1,
351 .btf_load_err = true,
352 .err_str = "Linkage not supported",
353 },
354 {
355 .descr = "global data test #5, invalid var type",
356 .raw_types = {
357 /* static void t */
358 BTF_VAR_ENC(NAME_TBD, 0, 0), /* [1] */
359 /* .bss section */ /* [2] */
360 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
361 BTF_VAR_SECINFO_ENC(1, 0, 4),
362 BTF_END_RAW,
363 },
364 .str_sec = "\0t\0.bss",
365 .str_sec_size = sizeof("\0t\0.bss"),
366 .map_type = BPF_MAP_TYPE_ARRAY,
367 .map_name = ".bss",
368 .key_size = sizeof(int),
369 .value_size = 4,
370 .key_type_id = 0,
371 .value_type_id = 2,
372 .max_entries = 1,
373 .btf_load_err = true,
374 .err_str = "Invalid type_id",
375 },
376 {
377 .descr = "global data test #6, invalid var type (fwd type)",
378 .raw_types = {
379 /* union A */
380 BTF_TYPE_ENC(NAME_TBD,
381 BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [1] */
382 /* static union A t */
383 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
384 /* .bss section */ /* [3] */
385 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
386 BTF_VAR_SECINFO_ENC(2, 0, 4),
387 BTF_END_RAW,
388 },
389 .str_sec = "\0A\0t\0.bss",
390 .str_sec_size = sizeof("\0A\0t\0.bss"),
391 .map_type = BPF_MAP_TYPE_ARRAY,
392 .map_name = ".bss",
393 .key_size = sizeof(int),
394 .value_size = 4,
395 .key_type_id = 0,
396 .value_type_id = 2,
397 .max_entries = 1,
398 .btf_load_err = true,
399 .err_str = "Invalid type",
400 },
401 {
402 .descr = "global data test #7, invalid var type (fwd type)",
403 .raw_types = {
404 /* union A */
405 BTF_TYPE_ENC(NAME_TBD,
406 BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [1] */
407 /* static union A t */
408 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
409 /* .bss section */ /* [3] */
410 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
411 BTF_VAR_SECINFO_ENC(1, 0, 4),
412 BTF_END_RAW,
413 },
414 .str_sec = "\0A\0t\0.bss",
415 .str_sec_size = sizeof("\0A\0t\0.bss"),
416 .map_type = BPF_MAP_TYPE_ARRAY,
417 .map_name = ".bss",
418 .key_size = sizeof(int),
419 .value_size = 4,
420 .key_type_id = 0,
421 .value_type_id = 2,
422 .max_entries = 1,
423 .btf_load_err = true,
424 .err_str = "Invalid type",
425 },
426 {
427 .descr = "global data test #8, invalid var size",
428 .raw_types = {
429 /* int */
430 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
431 /* unsigned long long */
432 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
433 /* char */
434 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
435 /* int[8] */
436 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
437 /* struct A { */ /* [5] */
438 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
439 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
440 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
441 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
442 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
443 /* } */
444 /* static struct A t */
445 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
446 /* .bss section */ /* [7] */
447 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 48),
448 BTF_VAR_SECINFO_ENC(6, 0, 47),
449 BTF_END_RAW,
450 },
451 .str_sec = "\0A\0m\0n\0o\0p\0t\0.bss",
452 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"),
453 .map_type = BPF_MAP_TYPE_ARRAY,
454 .map_name = ".bss",
455 .key_size = sizeof(int),
456 .value_size = 48,
457 .key_type_id = 0,
458 .value_type_id = 7,
459 .max_entries = 1,
460 .btf_load_err = true,
461 .err_str = "Invalid size",
462 },
463 {
464 .descr = "global data test #9, invalid var size",
465 .raw_types = {
466 /* int */
467 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
468 /* unsigned long long */
469 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
470 /* char */
471 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
472 /* int[8] */
473 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
474 /* struct A { */ /* [5] */
475 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
476 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
477 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
478 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
479 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
480 /* } */
481 /* static struct A t */
482 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
483 /* .bss section */ /* [7] */
484 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 46),
485 BTF_VAR_SECINFO_ENC(6, 0, 48),
486 BTF_END_RAW,
487 },
488 .str_sec = "\0A\0m\0n\0o\0p\0t\0.bss",
489 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"),
490 .map_type = BPF_MAP_TYPE_ARRAY,
491 .map_name = ".bss",
492 .key_size = sizeof(int),
493 .value_size = 48,
494 .key_type_id = 0,
495 .value_type_id = 7,
496 .max_entries = 1,
497 .btf_load_err = true,
498 .err_str = "Invalid size",
499 },
500 {
501 .descr = "global data test #10, invalid var size",
502 .raw_types = {
503 /* int */
504 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
505 /* unsigned long long */
506 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
507 /* char */
508 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
509 /* int[8] */
510 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
511 /* struct A { */ /* [5] */
512 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
513 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
514 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
515 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
516 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
517 /* } */
518 /* static struct A t */
519 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
520 /* .bss section */ /* [7] */
521 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 46),
522 BTF_VAR_SECINFO_ENC(6, 0, 46),
523 BTF_END_RAW,
524 },
525 .str_sec = "\0A\0m\0n\0o\0p\0t\0.bss",
526 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"),
527 .map_type = BPF_MAP_TYPE_ARRAY,
528 .map_name = ".bss",
529 .key_size = sizeof(int),
530 .value_size = 48,
531 .key_type_id = 0,
532 .value_type_id = 7,
533 .max_entries = 1,
534 .btf_load_err = true,
535 .err_str = "Invalid size",
536 },
537 {
538 .descr = "global data test #11, multiple section members",
539 .raw_types = {
540 /* int */
541 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
542 /* unsigned long long */
543 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
544 /* char */
545 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
546 /* int[8] */
547 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
548 /* struct A { */ /* [5] */
549 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
550 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
551 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
552 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
553 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
554 /* } */
555 /* static struct A t */
556 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
557 /* static int u */
558 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [7] */
559 /* .bss section */ /* [8] */
560 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62),
561 BTF_VAR_SECINFO_ENC(6, 10, 48),
562 BTF_VAR_SECINFO_ENC(7, 58, 4),
563 BTF_END_RAW,
564 },
565 .str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss",
566 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"),
567 .map_type = BPF_MAP_TYPE_ARRAY,
568 .map_name = ".bss",
569 .key_size = sizeof(int),
570 .value_size = 62,
571 .key_type_id = 0,
572 .value_type_id = 8,
573 .max_entries = 1,
574 },
575 {
576 .descr = "global data test #12, invalid offset",
577 .raw_types = {
578 /* int */
579 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
580 /* unsigned long long */
581 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
582 /* char */
583 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
584 /* int[8] */
585 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
586 /* struct A { */ /* [5] */
587 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
588 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
589 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
590 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
591 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
592 /* } */
593 /* static struct A t */
594 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
595 /* static int u */
596 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [7] */
597 /* .bss section */ /* [8] */
598 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62),
599 BTF_VAR_SECINFO_ENC(6, 10, 48),
600 BTF_VAR_SECINFO_ENC(7, 60, 4),
601 BTF_END_RAW,
602 },
603 .str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss",
604 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"),
605 .map_type = BPF_MAP_TYPE_ARRAY,
606 .map_name = ".bss",
607 .key_size = sizeof(int),
608 .value_size = 62,
609 .key_type_id = 0,
610 .value_type_id = 8,
611 .max_entries = 1,
612 .btf_load_err = true,
613 .err_str = "Invalid offset+size",
614 },
615 {
616 .descr = "global data test #13, invalid offset",
617 .raw_types = {
618 /* int */
619 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
620 /* unsigned long long */
621 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
622 /* char */
623 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
624 /* int[8] */
625 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
626 /* struct A { */ /* [5] */
627 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
628 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
629 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
630 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
631 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
632 /* } */
633 /* static struct A t */
634 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
635 /* static int u */
636 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [7] */
637 /* .bss section */ /* [8] */
638 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62),
639 BTF_VAR_SECINFO_ENC(6, 10, 48),
640 BTF_VAR_SECINFO_ENC(7, 12, 4),
641 BTF_END_RAW,
642 },
643 .str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss",
644 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"),
645 .map_type = BPF_MAP_TYPE_ARRAY,
646 .map_name = ".bss",
647 .key_size = sizeof(int),
648 .value_size = 62,
649 .key_type_id = 0,
650 .value_type_id = 8,
651 .max_entries = 1,
652 .btf_load_err = true,
653 .err_str = "Invalid offset",
654 },
655 {
656 .descr = "global data test #14, invalid offset",
657 .raw_types = {
658 /* int */
659 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
660 /* unsigned long long */
661 BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
662 /* char */
663 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
664 /* int[8] */
665 BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
666 /* struct A { */ /* [5] */
667 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
668 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
669 BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
670 BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
671 BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
672 /* } */
673 /* static struct A t */
674 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
675 /* static int u */
676 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [7] */
677 /* .bss section */ /* [8] */
678 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62),
679 BTF_VAR_SECINFO_ENC(7, 58, 4),
680 BTF_VAR_SECINFO_ENC(6, 10, 48),
681 BTF_END_RAW,
682 },
683 .str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss",
684 .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"),
685 .map_type = BPF_MAP_TYPE_ARRAY,
686 .map_name = ".bss",
687 .key_size = sizeof(int),
688 .value_size = 62,
689 .key_type_id = 0,
690 .value_type_id = 8,
691 .max_entries = 1,
692 .btf_load_err = true,
693 .err_str = "Invalid offset",
694 },
695 {
696 .descr = "global data test #15, not var kind",
697 .raw_types = {
698 /* int */
699 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
700 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
701 /* .bss section */ /* [3] */
702 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
703 BTF_VAR_SECINFO_ENC(1, 0, 4),
704 BTF_END_RAW,
705 },
706 .str_sec = "\0A\0t\0.bss",
707 .str_sec_size = sizeof("\0A\0t\0.bss"),
708 .map_type = BPF_MAP_TYPE_ARRAY,
709 .map_name = ".bss",
710 .key_size = sizeof(int),
711 .value_size = 4,
712 .key_type_id = 0,
713 .value_type_id = 3,
714 .max_entries = 1,
715 .btf_load_err = true,
716 .err_str = "Not a VAR kind member",
717 },
718 {
719 .descr = "global data test #16, invalid var referencing sec",
720 .raw_types = {
721 /* int */
722 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
723 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [2] */
724 BTF_VAR_ENC(NAME_TBD, 2, 0), /* [3] */
725 /* a section */ /* [4] */
726 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
727 BTF_VAR_SECINFO_ENC(3, 0, 4),
728 /* a section */ /* [5] */
729 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
730 BTF_VAR_SECINFO_ENC(6, 0, 4),
731 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [6] */
732 BTF_END_RAW,
733 },
734 .str_sec = "\0A\0t\0s\0a\0a",
735 .str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
736 .map_type = BPF_MAP_TYPE_ARRAY,
737 .map_name = ".bss",
738 .key_size = sizeof(int),
739 .value_size = 4,
740 .key_type_id = 0,
741 .value_type_id = 4,
742 .max_entries = 1,
743 .btf_load_err = true,
744 .err_str = "Invalid type_id",
745 },
746 {
747 .descr = "global data test #17, invalid var referencing var",
748 .raw_types = {
749 /* int */
750 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
751 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
752 BTF_VAR_ENC(NAME_TBD, 2, 0), /* [3] */
753 /* a section */ /* [4] */
754 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
755 BTF_VAR_SECINFO_ENC(3, 0, 4),
756 BTF_END_RAW,
757 },
758 .str_sec = "\0A\0t\0s\0a\0a",
759 .str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
760 .map_type = BPF_MAP_TYPE_ARRAY,
761 .map_name = ".bss",
762 .key_size = sizeof(int),
763 .value_size = 4,
764 .key_type_id = 0,
765 .value_type_id = 4,
766 .max_entries = 1,
767 .btf_load_err = true,
768 .err_str = "Invalid type_id",
769 },
770 {
771 .descr = "global data test #18, invalid var loop",
772 .raw_types = {
773 /* int */
774 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
775 BTF_VAR_ENC(NAME_TBD, 2, 0), /* [2] */
776 /* .bss section */ /* [3] */
777 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
778 BTF_VAR_SECINFO_ENC(2, 0, 4),
779 BTF_END_RAW,
780 },
781 .str_sec = "\0A\0t\0aaa",
782 .str_sec_size = sizeof("\0A\0t\0aaa"),
783 .map_type = BPF_MAP_TYPE_ARRAY,
784 .map_name = ".bss",
785 .key_size = sizeof(int),
786 .value_size = 4,
787 .key_type_id = 0,
788 .value_type_id = 4,
789 .max_entries = 1,
790 .btf_load_err = true,
791 .err_str = "Invalid type_id",
792 },
793 {
794 .descr = "global data test #19, invalid var referencing var",
795 .raw_types = {
796 /* int */
797 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
798 BTF_VAR_ENC(NAME_TBD, 3, 0), /* [2] */
799 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [3] */
800 BTF_END_RAW,
801 },
802 .str_sec = "\0A\0t\0s\0a\0a",
803 .str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
804 .map_type = BPF_MAP_TYPE_ARRAY,
805 .map_name = ".bss",
806 .key_size = sizeof(int),
807 .value_size = 4,
808 .key_type_id = 0,
809 .value_type_id = 4,
810 .max_entries = 1,
811 .btf_load_err = true,
812 .err_str = "Invalid type_id",
813 },
814 {
815 .descr = "global data test #20, invalid ptr referencing var",
816 .raw_types = {
817 /* int */
818 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
819 /* PTR type_id=3 */ /* [2] */
820 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 3),
821 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [3] */
822 BTF_END_RAW,
823 },
824 .str_sec = "\0A\0t\0s\0a\0a",
825 .str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
826 .map_type = BPF_MAP_TYPE_ARRAY,
827 .map_name = ".bss",
828 .key_size = sizeof(int),
829 .value_size = 4,
830 .key_type_id = 0,
831 .value_type_id = 4,
832 .max_entries = 1,
833 .btf_load_err = true,
834 .err_str = "Invalid type_id",
835 },
836 {
837 .descr = "global data test #21, var included in struct",
838 .raw_types = {
839 /* int */
840 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
841 /* struct A { */ /* [2] */
842 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2),
843 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */
844 BTF_MEMBER_ENC(NAME_TBD, 3, 32),/* VAR type_id=3; */
845 /* } */
846 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [3] */
847 BTF_END_RAW,
848 },
849 .str_sec = "\0A\0t\0s\0a\0a",
850 .str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
851 .map_type = BPF_MAP_TYPE_ARRAY,
852 .map_name = ".bss",
853 .key_size = sizeof(int),
854 .value_size = 4,
855 .key_type_id = 0,
856 .value_type_id = 4,
857 .max_entries = 1,
858 .btf_load_err = true,
859 .err_str = "Invalid member",
860 },
861 {
862 .descr = "global data test #22, array of var",
863 .raw_types = {
864 /* int */
865 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
866 BTF_TYPE_ARRAY_ENC(3, 1, 4), /* [2] */
867 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [3] */
868 BTF_END_RAW,
869 },
870 .str_sec = "\0A\0t\0s\0a\0a",
871 .str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
872 .map_type = BPF_MAP_TYPE_ARRAY,
873 .map_name = ".bss",
874 .key_size = sizeof(int),
875 .value_size = 4,
876 .key_type_id = 0,
877 .value_type_id = 4,
878 .max_entries = 1,
879 .btf_load_err = true,
880 .err_str = "Invalid elem",
881 },
882 {
883 .descr = "var after datasec, ptr followed by modifier",
884 .raw_types = {
885 /* .bss section */ /* [1] */
886 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2),
887 sizeof(void*)+4),
888 BTF_VAR_SECINFO_ENC(4, 0, sizeof(void*)),
889 BTF_VAR_SECINFO_ENC(6, sizeof(void*), 4),
890 /* int */ /* [2] */
891 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
892 /* int* */ /* [3] */
893 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2),
894 BTF_VAR_ENC(NAME_TBD, 3, 0), /* [4] */
895 /* const int */ /* [5] */
896 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2),
897 BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
898 BTF_END_RAW,
899 },
900 .str_sec = "\0a\0b\0c\0",
901 .str_sec_size = sizeof("\0a\0b\0c\0"),
902 .map_type = BPF_MAP_TYPE_ARRAY,
903 .map_name = ".bss",
904 .key_size = sizeof(int),
905 .value_size = sizeof(void*)+4,
906 .key_type_id = 0,
907 .value_type_id = 1,
908 .max_entries = 1,
909 },
910 /* Test member exceeds the size of struct.
911 *
912 * struct A {
913 * int m;
914 * int n;
915 * };
916 */
917 {
918 .descr = "size check test #1",
919 .raw_types = {
920 /* int */ /* [1] */
921 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
922 /* struct A { */ /* [2] */
923 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2 - 1),
924 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */
925 BTF_MEMBER_ENC(NAME_TBD, 1, 32),/* int n; */
926 /* } */
927 BTF_END_RAW,
928 },
929 .str_sec = "\0A\0m\0n",
930 .str_sec_size = sizeof("\0A\0m\0n"),
931 .map_type = BPF_MAP_TYPE_ARRAY,
932 .map_name = "size_check1_map",
933 .key_size = sizeof(int),
934 .value_size = 1,
935 .key_type_id = 1,
936 .value_type_id = 2,
937 .max_entries = 4,
938 .btf_load_err = true,
939 .err_str = "Member exceeds struct_size",
940 },
941
942 /* Test member exceeds the size of struct
943 *
944 * struct A {
945 * int m;
946 * int n[2];
947 * };
948 */
949 {
950 .descr = "size check test #2",
951 .raw_types = {
952 /* int */ /* [1] */
953 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)),
954 /* int[2] */ /* [2] */
955 BTF_TYPE_ARRAY_ENC(1, 1, 2),
956 /* struct A { */ /* [3] */
957 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 3 - 1),
958 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */
959 BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* int n[2]; */
960 /* } */
961 BTF_END_RAW,
962 },
963 .str_sec = "\0A\0m\0n",
964 .str_sec_size = sizeof("\0A\0m\0n"),
965 .map_type = BPF_MAP_TYPE_ARRAY,
966 .map_name = "size_check2_map",
967 .key_size = sizeof(int),
968 .value_size = 1,
969 .key_type_id = 1,
970 .value_type_id = 3,
971 .max_entries = 4,
972 .btf_load_err = true,
973 .err_str = "Member exceeds struct_size",
974 },
975
976 /* Test member exceeds the size of struct
977 *
978 * struct A {
979 * int m;
980 * void *n;
981 * };
982 */
983 {
984 .descr = "size check test #3",
985 .raw_types = {
986 /* int */ /* [1] */
987 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)),
988 /* void* */ /* [2] */
989 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0),
990 /* struct A { */ /* [3] */
991 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) + sizeof(void *) - 1),
992 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */
993 BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* void *n; */
994 /* } */
995 BTF_END_RAW,
996 },
997 .str_sec = "\0A\0m\0n",
998 .str_sec_size = sizeof("\0A\0m\0n"),
999 .map_type = BPF_MAP_TYPE_ARRAY,
1000 .map_name = "size_check3_map",
1001 .key_size = sizeof(int),
1002 .value_size = 1,
1003 .key_type_id = 1,
1004 .value_type_id = 3,
1005 .max_entries = 4,
1006 .btf_load_err = true,
1007 .err_str = "Member exceeds struct_size",
1008 },
1009
1010 /* Test member exceeds the size of struct
1011 *
1012 * enum E {
1013 * E0,
1014 * E1,
1015 * };
1016 *
1017 * struct A {
1018 * int m;
1019 * enum E n;
1020 * };
1021 */
1022 {
1023 .descr = "size check test #4",
1024 .raw_types = {
1025 /* int */ /* [1] */
1026 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)),
1027 /* enum E { */ /* [2] */
1028 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), sizeof(int)),
1029 BTF_ENUM_ENC(NAME_TBD, 0),
1030 BTF_ENUM_ENC(NAME_TBD, 1),
1031 /* } */
1032 /* struct A { */ /* [3] */
1033 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2 - 1),
1034 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */
1035 BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* enum E n; */
1036 /* } */
1037 BTF_END_RAW,
1038 },
1039 .str_sec = "\0E\0E0\0E1\0A\0m\0n",
1040 .str_sec_size = sizeof("\0E\0E0\0E1\0A\0m\0n"),
1041 .map_type = BPF_MAP_TYPE_ARRAY,
1042 .map_name = "size_check4_map",
1043 .key_size = sizeof(int),
1044 .value_size = 1,
1045 .key_type_id = 1,
1046 .value_type_id = 3,
1047 .max_entries = 4,
1048 .btf_load_err = true,
1049 .err_str = "Member exceeds struct_size",
1050 },
1051
1052 /* Test member unexceeds the size of struct
1053 *
1054 * enum E {
1055 * E0,
1056 * E1,
1057 * };
1058 *
1059 * struct A {
1060 * char m;
1061 * enum E __attribute__((packed)) n;
1062 * };
1063 */
1064 {
1065 .descr = "size check test #5",
1066 .raw_types = {
1067 /* int */ /* [1] */
1068 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)),
1069 /* char */ /* [2] */
1070 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),
1071 /* enum E { */ /* [3] */
1072 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 1),
1073 BTF_ENUM_ENC(NAME_TBD, 0),
1074 BTF_ENUM_ENC(NAME_TBD, 1),
1075 /* } */
1076 /* struct A { */ /* [4] */
1077 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 2),
1078 BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* char m; */
1079 BTF_MEMBER_ENC(NAME_TBD, 3, 8),/* enum E __attribute__((packed)) n; */
1080 /* } */
1081 BTF_END_RAW,
1082 },
1083 .str_sec = "\0E\0E0\0E1\0A\0m\0n",
1084 .str_sec_size = sizeof("\0E\0E0\0E1\0A\0m\0n"),
1085 .map_type = BPF_MAP_TYPE_ARRAY,
1086 .map_name = "size_check5_map",
1087 .key_size = sizeof(int),
1088 .value_size = 2,
1089 .key_type_id = 1,
1090 .value_type_id = 4,
1091 .max_entries = 4,
1092 },
1093
1094 /* typedef const void * const_void_ptr;
1095 * struct A {
1096 * const_void_ptr m;
1097 * };
1098 */
1099 {
1100 .descr = "void test #1",
1101 .raw_types = {
1102 /* int */ /* [1] */
1103 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1104 /* const void */ /* [2] */
1105 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0),
1106 /* const void* */ /* [3] */
1107 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2),
1108 /* typedef const void * const_void_ptr */
1109 BTF_TYPEDEF_ENC(NAME_TBD, 3), /* [4] */
1110 /* struct A { */ /* [5] */
1111 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)),
1112 /* const_void_ptr m; */
1113 BTF_MEMBER_ENC(NAME_TBD, 4, 0),
1114 /* } */
1115 BTF_END_RAW,
1116 },
1117 .str_sec = "\0const_void_ptr\0A\0m",
1118 .str_sec_size = sizeof("\0const_void_ptr\0A\0m"),
1119 .map_type = BPF_MAP_TYPE_ARRAY,
1120 .map_name = "void_test1_map",
1121 .key_size = sizeof(int),
1122 .value_size = sizeof(void *),
1123 .key_type_id = 1,
1124 .value_type_id = 4,
1125 .max_entries = 4,
1126 },
1127
1128 /* struct A {
1129 * const void m;
1130 * };
1131 */
1132 {
1133 .descr = "void test #2",
1134 .raw_types = {
1135 /* int */ /* [1] */
1136 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1137 /* const void */ /* [2] */
1138 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0),
1139 /* struct A { */ /* [3] */
1140 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 8),
1141 /* const void m; */
1142 BTF_MEMBER_ENC(NAME_TBD, 2, 0),
1143 /* } */
1144 BTF_END_RAW,
1145 },
1146 .str_sec = "\0A\0m",
1147 .str_sec_size = sizeof("\0A\0m"),
1148 .map_type = BPF_MAP_TYPE_ARRAY,
1149 .map_name = "void_test2_map",
1150 .key_size = sizeof(int),
1151 .value_size = sizeof(void *),
1152 .key_type_id = 1,
1153 .value_type_id = 3,
1154 .max_entries = 4,
1155 .btf_load_err = true,
1156 .err_str = "Invalid member",
1157 },
1158
1159 /* typedef const void * const_void_ptr;
1160 * const_void_ptr[4]
1161 */
1162 {
1163 .descr = "void test #3",
1164 .raw_types = {
1165 /* int */ /* [1] */
1166 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1167 /* const void */ /* [2] */
1168 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0),
1169 /* const void* */ /* [3] */
1170 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2),
1171 /* typedef const void * const_void_ptr */
1172 BTF_TYPEDEF_ENC(NAME_TBD, 3), /* [4] */
1173 /* const_void_ptr[4] */
1174 BTF_TYPE_ARRAY_ENC(4, 1, 4), /* [5] */
1175 BTF_END_RAW,
1176 },
1177 .str_sec = "\0const_void_ptr",
1178 .str_sec_size = sizeof("\0const_void_ptr"),
1179 .map_type = BPF_MAP_TYPE_ARRAY,
1180 .map_name = "void_test3_map",
1181 .key_size = sizeof(int),
1182 .value_size = sizeof(void *) * 4,
1183 .key_type_id = 1,
1184 .value_type_id = 5,
1185 .max_entries = 4,
1186 },
1187
1188 /* const void[4] */
1189 {
1190 .descr = "void test #4",
1191 .raw_types = {
1192 /* int */ /* [1] */
1193 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1194 /* const void */ /* [2] */
1195 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0),
1196 /* const void[4] */ /* [3] */
1197 BTF_TYPE_ARRAY_ENC(2, 1, 4),
1198 BTF_END_RAW,
1199 },
1200 .str_sec = "\0A\0m",
1201 .str_sec_size = sizeof("\0A\0m"),
1202 .map_type = BPF_MAP_TYPE_ARRAY,
1203 .map_name = "void_test4_map",
1204 .key_size = sizeof(int),
1205 .value_size = sizeof(void *) * 4,
1206 .key_type_id = 1,
1207 .value_type_id = 3,
1208 .max_entries = 4,
1209 .btf_load_err = true,
1210 .err_str = "Invalid elem",
1211 },
1212
1213 /* Array_A <------------------+
1214 * elem_type == Array_B |
1215 * | |
1216 * | |
1217 * Array_B <-------- + |
1218 * elem_type == Array A --+
1219 */
1220 {
1221 .descr = "loop test #1",
1222 .raw_types = {
1223 /* int */ /* [1] */
1224 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1225 /* Array_A */ /* [2] */
1226 BTF_TYPE_ARRAY_ENC(3, 1, 8),
1227 /* Array_B */ /* [3] */
1228 BTF_TYPE_ARRAY_ENC(2, 1, 8),
1229 BTF_END_RAW,
1230 },
1231 .str_sec = "",
1232 .str_sec_size = sizeof(""),
1233 .map_type = BPF_MAP_TYPE_ARRAY,
1234 .map_name = "loop_test1_map",
1235 .key_size = sizeof(int),
1236 .value_size = sizeof(sizeof(int) * 8),
1237 .key_type_id = 1,
1238 .value_type_id = 2,
1239 .max_entries = 4,
1240 .btf_load_err = true,
1241 .err_str = "Loop detected",
1242 },
1243
1244 /* typedef is _before_ the BTF type of Array_A and Array_B
1245 *
1246 * typedef Array_B int_array;
1247 *
1248 * Array_A <------------------+
1249 * elem_type == int_array |
1250 * | |
1251 * | |
1252 * Array_B <-------- + |
1253 * elem_type == Array_A --+
1254 */
1255 {
1256 .descr = "loop test #2",
1257 .raw_types = {
1258 /* int */
1259 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
1260 /* typedef Array_B int_array */
1261 BTF_TYPEDEF_ENC(1, 4), /* [2] */
1262 /* Array_A */
1263 BTF_TYPE_ARRAY_ENC(2, 1, 8), /* [3] */
1264 /* Array_B */
1265 BTF_TYPE_ARRAY_ENC(3, 1, 8), /* [4] */
1266 BTF_END_RAW,
1267 },
1268 .str_sec = "\0int_array\0",
1269 .str_sec_size = sizeof("\0int_array"),
1270 .map_type = BPF_MAP_TYPE_ARRAY,
1271 .map_name = "loop_test2_map",
1272 .key_size = sizeof(int),
1273 .value_size = sizeof(sizeof(int) * 8),
1274 .key_type_id = 1,
1275 .value_type_id = 2,
1276 .max_entries = 4,
1277 .btf_load_err = true,
1278 .err_str = "Loop detected",
1279 },
1280
1281 /* Array_A <------------------+
1282 * elem_type == Array_B |
1283 * | |
1284 * | |
1285 * Array_B <-------- + |
1286 * elem_type == Array_A --+
1287 */
1288 {
1289 .descr = "loop test #3",
1290 .raw_types = {
1291 /* int */ /* [1] */
1292 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1293 /* Array_A */ /* [2] */
1294 BTF_TYPE_ARRAY_ENC(3, 1, 8),
1295 /* Array_B */ /* [3] */
1296 BTF_TYPE_ARRAY_ENC(2, 1, 8),
1297 BTF_END_RAW,
1298 },
1299 .str_sec = "",
1300 .str_sec_size = sizeof(""),
1301 .map_type = BPF_MAP_TYPE_ARRAY,
1302 .map_name = "loop_test3_map",
1303 .key_size = sizeof(int),
1304 .value_size = sizeof(sizeof(int) * 8),
1305 .key_type_id = 1,
1306 .value_type_id = 2,
1307 .max_entries = 4,
1308 .btf_load_err = true,
1309 .err_str = "Loop detected",
1310 },
1311
1312 /* typedef is _between_ the BTF type of Array_A and Array_B
1313 *
1314 * typedef Array_B int_array;
1315 *
1316 * Array_A <------------------+
1317 * elem_type == int_array |
1318 * | |
1319 * | |
1320 * Array_B <-------- + |
1321 * elem_type == Array_A --+
1322 */
1323 {
1324 .descr = "loop test #4",
1325 .raw_types = {
1326 /* int */ /* [1] */
1327 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1328 /* Array_A */ /* [2] */
1329 BTF_TYPE_ARRAY_ENC(3, 1, 8),
1330 /* typedef Array_B int_array */ /* [3] */
1331 BTF_TYPEDEF_ENC(NAME_TBD, 4),
1332 /* Array_B */ /* [4] */
1333 BTF_TYPE_ARRAY_ENC(2, 1, 8),
1334 BTF_END_RAW,
1335 },
1336 .str_sec = "\0int_array\0",
1337 .str_sec_size = sizeof("\0int_array"),
1338 .map_type = BPF_MAP_TYPE_ARRAY,
1339 .map_name = "loop_test4_map",
1340 .key_size = sizeof(int),
1341 .value_size = sizeof(sizeof(int) * 8),
1342 .key_type_id = 1,
1343 .value_type_id = 2,
1344 .max_entries = 4,
1345 .btf_load_err = true,
1346 .err_str = "Loop detected",
1347 },
1348
1349 /* typedef struct B Struct_B
1350 *
1351 * struct A {
1352 * int x;
1353 * Struct_B y;
1354 * };
1355 *
1356 * struct B {
1357 * int x;
1358 * struct A y;
1359 * };
1360 */
1361 {
1362 .descr = "loop test #5",
1363 .raw_types = {
1364 /* int */
1365 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
1366 /* struct A */ /* [2] */
1367 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8),
1368 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int x; */
1369 BTF_MEMBER_ENC(NAME_TBD, 3, 32),/* Struct_B y; */
1370 /* typedef struct B Struct_B */
1371 BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */
1372 /* struct B */ /* [4] */
1373 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8),
1374 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int x; */
1375 BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct A y; */
1376 BTF_END_RAW,
1377 },
1378 .str_sec = "\0A\0x\0y\0Struct_B\0B\0x\0y",
1379 .str_sec_size = sizeof("\0A\0x\0y\0Struct_B\0B\0x\0y"),
1380 .map_type = BPF_MAP_TYPE_ARRAY,
1381 .map_name = "loop_test5_map",
1382 .key_size = sizeof(int),
1383 .value_size = 8,
1384 .key_type_id = 1,
1385 .value_type_id = 2,
1386 .max_entries = 4,
1387 .btf_load_err = true,
1388 .err_str = "Loop detected",
1389 },
1390
1391 /* struct A {
1392 * int x;
1393 * struct A array_a[4];
1394 * };
1395 */
1396 {
1397 .descr = "loop test #6",
1398 .raw_types = {
1399 /* int */
1400 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
1401 BTF_TYPE_ARRAY_ENC(3, 1, 4), /* [2] */
1402 /* struct A */ /* [3] */
1403 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8),
1404 BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int x; */
1405 BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct A array_a[4]; */
1406 BTF_END_RAW,
1407 },
1408 .str_sec = "\0A\0x\0y",
1409 .str_sec_size = sizeof("\0A\0x\0y"),
1410 .map_type = BPF_MAP_TYPE_ARRAY,
1411 .map_name = "loop_test6_map",
1412 .key_size = sizeof(int),
1413 .value_size = 8,
1414 .key_type_id = 1,
1415 .value_type_id = 2,
1416 .max_entries = 4,
1417 .btf_load_err = true,
1418 .err_str = "Loop detected",
1419 },
1420
1421 {
1422 .descr = "loop test #7",
1423 .raw_types = {
1424 /* int */ /* [1] */
1425 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1426 /* struct A { */ /* [2] */
1427 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)),
1428 /* const void *m; */
1429 BTF_MEMBER_ENC(NAME_TBD, 3, 0),
1430 /* CONST type_id=3 */ /* [3] */
1431 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4),
1432 /* PTR type_id=2 */ /* [4] */
1433 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 3),
1434 BTF_END_RAW,
1435 },
1436 .str_sec = "\0A\0m",
1437 .str_sec_size = sizeof("\0A\0m"),
1438 .map_type = BPF_MAP_TYPE_ARRAY,
1439 .map_name = "loop_test7_map",
1440 .key_size = sizeof(int),
1441 .value_size = sizeof(void *),
1442 .key_type_id = 1,
1443 .value_type_id = 2,
1444 .max_entries = 4,
1445 .btf_load_err = true,
1446 .err_str = "Loop detected",
1447 },
1448
1449 {
1450 .descr = "loop test #8",
1451 .raw_types = {
1452 /* int */ /* [1] */
1453 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1454 /* struct A { */ /* [2] */
1455 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)),
1456 /* const void *m; */
1457 BTF_MEMBER_ENC(NAME_TBD, 4, 0),
1458 /* struct B { */ /* [3] */
1459 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)),
1460 /* const void *n; */
1461 BTF_MEMBER_ENC(NAME_TBD, 6, 0),
1462 /* CONST type_id=5 */ /* [4] */
1463 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 5),
1464 /* PTR type_id=6 */ /* [5] */
1465 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 6),
1466 /* CONST type_id=7 */ /* [6] */
1467 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 7),
1468 /* PTR type_id=4 */ /* [7] */
1469 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 4),
1470 BTF_END_RAW,
1471 },
1472 .str_sec = "\0A\0m\0B\0n",
1473 .str_sec_size = sizeof("\0A\0m\0B\0n"),
1474 .map_type = BPF_MAP_TYPE_ARRAY,
1475 .map_name = "loop_test8_map",
1476 .key_size = sizeof(int),
1477 .value_size = sizeof(void *),
1478 .key_type_id = 1,
1479 .value_type_id = 2,
1480 .max_entries = 4,
1481 .btf_load_err = true,
1482 .err_str = "Loop detected",
1483 },
1484
1485 {
1486 .descr = "string section does not end with null",
1487 .raw_types = {
1488 /* int */ /* [1] */
1489 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
1490 BTF_END_RAW,
1491 },
1492 .str_sec = "\0int",
1493 .str_sec_size = sizeof("\0int") - 1,
1494 .map_type = BPF_MAP_TYPE_ARRAY,
1495 .map_name = "hdr_test_map",
1496 .key_size = sizeof(int),
1497 .value_size = sizeof(int),
1498 .key_type_id = 1,
1499 .value_type_id = 1,
1500 .max_entries = 4,
1501 .btf_load_err = true,
1502 .err_str = "Invalid string section",
1503 },
1504
1505 {
1506 .descr = "empty string section",
1507 .raw_types = {
1508 /* int */ /* [1] */
1509 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1510 BTF_END_RAW,
1511 },
1512 .str_sec = "",
1513 .str_sec_size = 0,
1514 .map_type = BPF_MAP_TYPE_ARRAY,
1515 .map_name = "hdr_test_map",
1516 .key_size = sizeof(int),
1517 .value_size = sizeof(int),
1518 .key_type_id = 1,
1519 .value_type_id = 1,
1520 .max_entries = 4,
1521 .btf_load_err = true,
1522 .err_str = "Invalid string section",
1523 },
1524
1525 {
1526 .descr = "empty type section",
1527 .raw_types = {
1528 BTF_END_RAW,
1529 },
1530 .str_sec = "\0int",
1531 .str_sec_size = sizeof("\0int"),
1532 .map_type = BPF_MAP_TYPE_ARRAY,
1533 .map_name = "hdr_test_map",
1534 .key_size = sizeof(int),
1535 .value_size = sizeof(int),
1536 .key_type_id = 1,
1537 .value_type_id = 1,
1538 .max_entries = 4,
1539 .btf_load_err = true,
1540 .err_str = "No type found",
1541 },
1542
1543 {
1544 .descr = "btf_header test. Longer hdr_len",
1545 .raw_types = {
1546 /* int */ /* [1] */
1547 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
1548 BTF_END_RAW,
1549 },
1550 .str_sec = "\0int",
1551 .str_sec_size = sizeof("\0int"),
1552 .map_type = BPF_MAP_TYPE_ARRAY,
1553 .map_name = "hdr_test_map",
1554 .key_size = sizeof(int),
1555 .value_size = sizeof(int),
1556 .key_type_id = 1,
1557 .value_type_id = 1,
1558 .max_entries = 4,
1559 .btf_load_err = true,
1560 .hdr_len_delta = 4,
1561 .err_str = "Unsupported btf_header",
1562 },
1563
1564 {
1565 .descr = "btf_header test. Gap between hdr and type",
1566 .raw_types = {
1567 /* int */ /* [1] */
1568 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
1569 BTF_END_RAW,
1570 },
1571 .str_sec = "\0int",
1572 .str_sec_size = sizeof("\0int"),
1573 .map_type = BPF_MAP_TYPE_ARRAY,
1574 .map_name = "hdr_test_map",
1575 .key_size = sizeof(int),
1576 .value_size = sizeof(int),
1577 .key_type_id = 1,
1578 .value_type_id = 1,
1579 .max_entries = 4,
1580 .btf_load_err = true,
1581 .type_off_delta = 4,
1582 .err_str = "Unsupported section found",
1583 },
1584
1585 {
1586 .descr = "btf_header test. Gap between type and str",
1587 .raw_types = {
1588 /* int */ /* [1] */
1589 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
1590 BTF_END_RAW,
1591 },
1592 .str_sec = "\0int",
1593 .str_sec_size = sizeof("\0int"),
1594 .map_type = BPF_MAP_TYPE_ARRAY,
1595 .map_name = "hdr_test_map",
1596 .key_size = sizeof(int),
1597 .value_size = sizeof(int),
1598 .key_type_id = 1,
1599 .value_type_id = 1,
1600 .max_entries = 4,
1601 .btf_load_err = true,
1602 .str_off_delta = 4,
1603 .err_str = "Unsupported section found",
1604 },
1605
1606 {
1607 .descr = "btf_header test. Overlap between type and str",
1608 .raw_types = {
1609 /* int */ /* [1] */
1610 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
1611 BTF_END_RAW,
1612 },
1613 .str_sec = "\0int",
1614 .str_sec_size = sizeof("\0int"),
1615 .map_type = BPF_MAP_TYPE_ARRAY,
1616 .map_name = "hdr_test_map",
1617 .key_size = sizeof(int),
1618 .value_size = sizeof(int),
1619 .key_type_id = 1,
1620 .value_type_id = 1,
1621 .max_entries = 4,
1622 .btf_load_err = true,
1623 .str_off_delta = -4,
1624 .err_str = "Section overlap found",
1625 },
1626
1627 {
1628 .descr = "btf_header test. Larger BTF size",
1629 .raw_types = {
1630 /* int */ /* [1] */
1631 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
1632 BTF_END_RAW,
1633 },
1634 .str_sec = "\0int",
1635 .str_sec_size = sizeof("\0int"),
1636 .map_type = BPF_MAP_TYPE_ARRAY,
1637 .map_name = "hdr_test_map",
1638 .key_size = sizeof(int),
1639 .value_size = sizeof(int),
1640 .key_type_id = 1,
1641 .value_type_id = 1,
1642 .max_entries = 4,
1643 .btf_load_err = true,
1644 .str_len_delta = -4,
1645 .err_str = "Unsupported section found",
1646 },
1647
1648 {
1649 .descr = "btf_header test. Smaller BTF size",
1650 .raw_types = {
1651 /* int */ /* [1] */
1652 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
1653 BTF_END_RAW,
1654 },
1655 .str_sec = "\0int",
1656 .str_sec_size = sizeof("\0int"),
1657 .map_type = BPF_MAP_TYPE_ARRAY,
1658 .map_name = "hdr_test_map",
1659 .key_size = sizeof(int),
1660 .value_size = sizeof(int),
1661 .key_type_id = 1,
1662 .value_type_id = 1,
1663 .max_entries = 4,
1664 .btf_load_err = true,
1665 .str_len_delta = 4,
1666 .err_str = "Total section length too long",
1667 },
1668
1669 {
1670 .descr = "array test. index_type/elem_type \"int\"",
1671 .raw_types = {
1672 /* int */ /* [1] */
1673 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1674 /* int[16] */ /* [2] */
1675 BTF_TYPE_ARRAY_ENC(1, 1, 16),
1676 BTF_END_RAW,
1677 },
1678 .str_sec = "",
1679 .str_sec_size = sizeof(""),
1680 .map_type = BPF_MAP_TYPE_ARRAY,
1681 .map_name = "array_test_map",
1682 .key_size = sizeof(int),
1683 .value_size = sizeof(int),
1684 .key_type_id = 1,
1685 .value_type_id = 1,
1686 .max_entries = 4,
1687 },
1688
1689 {
1690 .descr = "array test. index_type/elem_type \"const int\"",
1691 .raw_types = {
1692 /* int */ /* [1] */
1693 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1694 /* int[16] */ /* [2] */
1695 BTF_TYPE_ARRAY_ENC(3, 3, 16),
1696 /* CONST type_id=1 */ /* [3] */
1697 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1),
1698 BTF_END_RAW,
1699 },
1700 .str_sec = "",
1701 .str_sec_size = sizeof(""),
1702 .map_type = BPF_MAP_TYPE_ARRAY,
1703 .map_name = "array_test_map",
1704 .key_size = sizeof(int),
1705 .value_size = sizeof(int),
1706 .key_type_id = 1,
1707 .value_type_id = 1,
1708 .max_entries = 4,
1709 },
1710
1711 {
1712 .descr = "array test. index_type \"const int:31\"",
1713 .raw_types = {
1714 /* int */ /* [1] */
1715 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1716 /* int:31 */ /* [2] */
1717 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 31, 4),
1718 /* int[16] */ /* [3] */
1719 BTF_TYPE_ARRAY_ENC(1, 4, 16),
1720 /* CONST type_id=2 */ /* [4] */
1721 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2),
1722 BTF_END_RAW,
1723 },
1724 .str_sec = "",
1725 .str_sec_size = sizeof(""),
1726 .map_type = BPF_MAP_TYPE_ARRAY,
1727 .map_name = "array_test_map",
1728 .key_size = sizeof(int),
1729 .value_size = sizeof(int),
1730 .key_type_id = 1,
1731 .value_type_id = 1,
1732 .max_entries = 4,
1733 .btf_load_err = true,
1734 .err_str = "Invalid index",
1735 },
1736
1737 {
1738 .descr = "array test. elem_type \"const int:31\"",
1739 .raw_types = {
1740 /* int */ /* [1] */
1741 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1742 /* int:31 */ /* [2] */
1743 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 31, 4),
1744 /* int[16] */ /* [3] */
1745 BTF_TYPE_ARRAY_ENC(4, 1, 16),
1746 /* CONST type_id=2 */ /* [4] */
1747 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2),
1748 BTF_END_RAW,
1749 },
1750 .str_sec = "",
1751 .str_sec_size = sizeof(""),
1752 .map_type = BPF_MAP_TYPE_ARRAY,
1753 .map_name = "array_test_map",
1754 .key_size = sizeof(int),
1755 .value_size = sizeof(int),
1756 .key_type_id = 1,
1757 .value_type_id = 1,
1758 .max_entries = 4,
1759 .btf_load_err = true,
1760 .err_str = "Invalid array of int",
1761 },
1762
1763 {
1764 .descr = "array test. index_type \"void\"",
1765 .raw_types = {
1766 /* int */ /* [1] */
1767 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1768 /* int[16] */ /* [2] */
1769 BTF_TYPE_ARRAY_ENC(1, 0, 16),
1770 BTF_END_RAW,
1771 },
1772 .str_sec = "",
1773 .str_sec_size = sizeof(""),
1774 .map_type = BPF_MAP_TYPE_ARRAY,
1775 .map_name = "array_test_map",
1776 .key_size = sizeof(int),
1777 .value_size = sizeof(int),
1778 .key_type_id = 1,
1779 .value_type_id = 1,
1780 .max_entries = 4,
1781 .btf_load_err = true,
1782 .err_str = "Invalid index",
1783 },
1784
1785 {
1786 .descr = "array test. index_type \"const void\"",
1787 .raw_types = {
1788 /* int */ /* [1] */
1789 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1790 /* int[16] */ /* [2] */
1791 BTF_TYPE_ARRAY_ENC(1, 3, 16),
1792 /* CONST type_id=0 (void) */ /* [3] */
1793 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0),
1794 BTF_END_RAW,
1795 },
1796 .str_sec = "",
1797 .str_sec_size = sizeof(""),
1798 .map_type = BPF_MAP_TYPE_ARRAY,
1799 .map_name = "array_test_map",
1800 .key_size = sizeof(int),
1801 .value_size = sizeof(int),
1802 .key_type_id = 1,
1803 .value_type_id = 1,
1804 .max_entries = 4,
1805 .btf_load_err = true,
1806 .err_str = "Invalid index",
1807 },
1808
1809 {
1810 .descr = "array test. elem_type \"const void\"",
1811 .raw_types = {
1812 /* int */ /* [1] */
1813 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1814 /* int[16] */ /* [2] */
1815 BTF_TYPE_ARRAY_ENC(3, 1, 16),
1816 /* CONST type_id=0 (void) */ /* [3] */
1817 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0),
1818 BTF_END_RAW,
1819 },
1820 .str_sec = "",
1821 .str_sec_size = sizeof(""),
1822 .map_type = BPF_MAP_TYPE_ARRAY,
1823 .map_name = "array_test_map",
1824 .key_size = sizeof(int),
1825 .value_size = sizeof(int),
1826 .key_type_id = 1,
1827 .value_type_id = 1,
1828 .max_entries = 4,
1829 .btf_load_err = true,
1830 .err_str = "Invalid elem",
1831 },
1832
1833 {
1834 .descr = "array test. elem_type \"const void *\"",
1835 .raw_types = {
1836 /* int */ /* [1] */
1837 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1838 /* const void *[16] */ /* [2] */
1839 BTF_TYPE_ARRAY_ENC(3, 1, 16),
1840 /* CONST type_id=4 */ /* [3] */
1841 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4),
1842 /* void* */ /* [4] */
1843 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0),
1844 BTF_END_RAW,
1845 },
1846 .str_sec = "",
1847 .str_sec_size = sizeof(""),
1848 .map_type = BPF_MAP_TYPE_ARRAY,
1849 .map_name = "array_test_map",
1850 .key_size = sizeof(int),
1851 .value_size = sizeof(int),
1852 .key_type_id = 1,
1853 .value_type_id = 1,
1854 .max_entries = 4,
1855 },
1856
1857 {
1858 .descr = "array test. index_type \"const void *\"",
1859 .raw_types = {
1860 /* int */ /* [1] */
1861 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1862 /* const void *[16] */ /* [2] */
1863 BTF_TYPE_ARRAY_ENC(3, 3, 16),
1864 /* CONST type_id=4 */ /* [3] */
1865 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4),
1866 /* void* */ /* [4] */
1867 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0),
1868 BTF_END_RAW,
1869 },
1870 .str_sec = "",
1871 .str_sec_size = sizeof(""),
1872 .map_type = BPF_MAP_TYPE_ARRAY,
1873 .map_name = "array_test_map",
1874 .key_size = sizeof(int),
1875 .value_size = sizeof(int),
1876 .key_type_id = 1,
1877 .value_type_id = 1,
1878 .max_entries = 4,
1879 .btf_load_err = true,
1880 .err_str = "Invalid index",
1881 },
1882
1883 {
1884 .descr = "array test. t->size != 0\"",
1885 .raw_types = {
1886 /* int */ /* [1] */
1887 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1888 /* int[16] */ /* [2] */
1889 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 1),
1890 BTF_ARRAY_ENC(1, 1, 16),
1891 BTF_END_RAW,
1892 },
1893 .str_sec = "",
1894 .str_sec_size = sizeof(""),
1895 .map_type = BPF_MAP_TYPE_ARRAY,
1896 .map_name = "array_test_map",
1897 .key_size = sizeof(int),
1898 .value_size = sizeof(int),
1899 .key_type_id = 1,
1900 .value_type_id = 1,
1901 .max_entries = 4,
1902 .btf_load_err = true,
1903 .err_str = "size != 0",
1904 },
1905
1906 {
1907 .descr = "int test. invalid int_data",
1908 .raw_types = {
1909 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), 4),
1910 0x10000000,
1911 BTF_END_RAW,
1912 },
1913 .str_sec = "",
1914 .str_sec_size = sizeof(""),
1915 .map_type = BPF_MAP_TYPE_ARRAY,
1916 .map_name = "array_test_map",
1917 .key_size = sizeof(int),
1918 .value_size = sizeof(int),
1919 .key_type_id = 1,
1920 .value_type_id = 1,
1921 .max_entries = 4,
1922 .btf_load_err = true,
1923 .err_str = "Invalid int_data",
1924 },
1925
1926 {
1927 .descr = "invalid BTF_INFO",
1928 .raw_types = {
1929 /* int */ /* [1] */
1930 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1931 BTF_TYPE_ENC(0, 0x20000000, 4),
1932 BTF_END_RAW,
1933 },
1934 .str_sec = "",
1935 .str_sec_size = sizeof(""),
1936 .map_type = BPF_MAP_TYPE_ARRAY,
1937 .map_name = "array_test_map",
1938 .key_size = sizeof(int),
1939 .value_size = sizeof(int),
1940 .key_type_id = 1,
1941 .value_type_id = 1,
1942 .max_entries = 4,
1943 .btf_load_err = true,
1944 .err_str = "Invalid btf_info",
1945 },
1946
1947 {
1948 .descr = "fwd test. t->type != 0\"",
1949 .raw_types = {
1950 /* int */ /* [1] */
1951 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
1952 /* fwd type */ /* [2] */
1953 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 1),
1954 BTF_END_RAW,
1955 },
1956 .str_sec = "",
1957 .str_sec_size = sizeof(""),
1958 .map_type = BPF_MAP_TYPE_ARRAY,
1959 .map_name = "fwd_test_map",
1960 .key_size = sizeof(int),
1961 .value_size = sizeof(int),
1962 .key_type_id = 1,
1963 .value_type_id = 1,
1964 .max_entries = 4,
1965 .btf_load_err = true,
1966 .err_str = "type != 0",
1967 },
1968
1969 {
1970 .descr = "typedef (invalid name, name_off = 0)",
1971 .raw_types = {
1972 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
1973 BTF_TYPEDEF_ENC(0, 1), /* [2] */
1974 BTF_END_RAW,
1975 },
1976 .str_sec = "\0__int",
1977 .str_sec_size = sizeof("\0__int"),
1978 .map_type = BPF_MAP_TYPE_ARRAY,
1979 .map_name = "typedef_check_btf",
1980 .key_size = sizeof(int),
1981 .value_size = sizeof(int),
1982 .key_type_id = 1,
1983 .value_type_id = 1,
1984 .max_entries = 4,
1985 .btf_load_err = true,
1986 .err_str = "Invalid name",
1987 },
1988
1989 {
1990 .descr = "typedef (invalid name, invalid identifier)",
1991 .raw_types = {
1992 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
1993 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */
1994 BTF_END_RAW,
1995 },
1996 .str_sec = "\0__!int",
1997 .str_sec_size = sizeof("\0__!int"),
1998 .map_type = BPF_MAP_TYPE_ARRAY,
1999 .map_name = "typedef_check_btf",
2000 .key_size = sizeof(int),
2001 .value_size = sizeof(int),
2002 .key_type_id = 1,
2003 .value_type_id = 1,
2004 .max_entries = 4,
2005 .btf_load_err = true,
2006 .err_str = "Invalid name",
2007 },
2008
2009 {
2010 .descr = "ptr type (invalid name, name_off <> 0)",
2011 .raw_types = {
2012 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2013 BTF_TYPE_ENC(NAME_TBD,
2014 BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 1), /* [2] */
2015 BTF_END_RAW,
2016 },
2017 .str_sec = "\0__int",
2018 .str_sec_size = sizeof("\0__int"),
2019 .map_type = BPF_MAP_TYPE_ARRAY,
2020 .map_name = "ptr_type_check_btf",
2021 .key_size = sizeof(int),
2022 .value_size = sizeof(int),
2023 .key_type_id = 1,
2024 .value_type_id = 1,
2025 .max_entries = 4,
2026 .btf_load_err = true,
2027 .err_str = "Invalid name",
2028 },
2029
2030 {
2031 .descr = "volatile type (invalid name, name_off <> 0)",
2032 .raw_types = {
2033 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2034 BTF_TYPE_ENC(NAME_TBD,
2035 BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), 1), /* [2] */
2036 BTF_END_RAW,
2037 },
2038 .str_sec = "\0__int",
2039 .str_sec_size = sizeof("\0__int"),
2040 .map_type = BPF_MAP_TYPE_ARRAY,
2041 .map_name = "volatile_type_check_btf",
2042 .key_size = sizeof(int),
2043 .value_size = sizeof(int),
2044 .key_type_id = 1,
2045 .value_type_id = 1,
2046 .max_entries = 4,
2047 .btf_load_err = true,
2048 .err_str = "Invalid name",
2049 },
2050
2051 {
2052 .descr = "const type (invalid name, name_off <> 0)",
2053 .raw_types = {
2054 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2055 BTF_TYPE_ENC(NAME_TBD,
2056 BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1), /* [2] */
2057 BTF_END_RAW,
2058 },
2059 .str_sec = "\0__int",
2060 .str_sec_size = sizeof("\0__int"),
2061 .map_type = BPF_MAP_TYPE_ARRAY,
2062 .map_name = "const_type_check_btf",
2063 .key_size = sizeof(int),
2064 .value_size = sizeof(int),
2065 .key_type_id = 1,
2066 .value_type_id = 1,
2067 .max_entries = 4,
2068 .btf_load_err = true,
2069 .err_str = "Invalid name",
2070 },
2071
2072 {
2073 .descr = "restrict type (invalid name, name_off <> 0)",
2074 .raw_types = {
2075 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2076 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 1), /* [2] */
2077 BTF_TYPE_ENC(NAME_TBD,
2078 BTF_INFO_ENC(BTF_KIND_RESTRICT, 0, 0), 2), /* [3] */
2079 BTF_END_RAW,
2080 },
2081 .str_sec = "\0__int",
2082 .str_sec_size = sizeof("\0__int"),
2083 .map_type = BPF_MAP_TYPE_ARRAY,
2084 .map_name = "restrict_type_check_btf",
2085 .key_size = sizeof(int),
2086 .value_size = sizeof(int),
2087 .key_type_id = 1,
2088 .value_type_id = 1,
2089 .max_entries = 4,
2090 .btf_load_err = true,
2091 .err_str = "Invalid name",
2092 },
2093
2094 {
2095 .descr = "fwd type (invalid name, name_off = 0)",
2096 .raw_types = {
2097 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2098 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 0), /* [2] */
2099 BTF_END_RAW,
2100 },
2101 .str_sec = "\0__skb",
2102 .str_sec_size = sizeof("\0__skb"),
2103 .map_type = BPF_MAP_TYPE_ARRAY,
2104 .map_name = "fwd_type_check_btf",
2105 .key_size = sizeof(int),
2106 .value_size = sizeof(int),
2107 .key_type_id = 1,
2108 .value_type_id = 1,
2109 .max_entries = 4,
2110 .btf_load_err = true,
2111 .err_str = "Invalid name",
2112 },
2113
2114 {
2115 .descr = "fwd type (invalid name, invalid identifier)",
2116 .raw_types = {
2117 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2118 BTF_TYPE_ENC(NAME_TBD,
2119 BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 0), /* [2] */
2120 BTF_END_RAW,
2121 },
2122 .str_sec = "\0__!skb",
2123 .str_sec_size = sizeof("\0__!skb"),
2124 .map_type = BPF_MAP_TYPE_ARRAY,
2125 .map_name = "fwd_type_check_btf",
2126 .key_size = sizeof(int),
2127 .value_size = sizeof(int),
2128 .key_type_id = 1,
2129 .value_type_id = 1,
2130 .max_entries = 4,
2131 .btf_load_err = true,
2132 .err_str = "Invalid name",
2133 },
2134
2135 {
2136 .descr = "array type (invalid name, name_off <> 0)",
2137 .raw_types = {
2138 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2139 BTF_TYPE_ENC(NAME_TBD,
2140 BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 0), /* [2] */
2141 BTF_ARRAY_ENC(1, 1, 4),
2142 BTF_END_RAW,
2143 },
2144 .str_sec = "\0__skb",
2145 .str_sec_size = sizeof("\0__skb"),
2146 .map_type = BPF_MAP_TYPE_ARRAY,
2147 .map_name = "array_type_check_btf",
2148 .key_size = sizeof(int),
2149 .value_size = sizeof(int),
2150 .key_type_id = 1,
2151 .value_type_id = 1,
2152 .max_entries = 4,
2153 .btf_load_err = true,
2154 .err_str = "Invalid name",
2155 },
2156
2157 {
2158 .descr = "struct type (name_off = 0)",
2159 .raw_types = {
2160 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2161 BTF_TYPE_ENC(0,
2162 BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */
2163 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
2164 BTF_END_RAW,
2165 },
2166 .str_sec = "\0A",
2167 .str_sec_size = sizeof("\0A"),
2168 .map_type = BPF_MAP_TYPE_ARRAY,
2169 .map_name = "struct_type_check_btf",
2170 .key_size = sizeof(int),
2171 .value_size = sizeof(int),
2172 .key_type_id = 1,
2173 .value_type_id = 1,
2174 .max_entries = 4,
2175 },
2176
2177 {
2178 .descr = "struct type (invalid name, invalid identifier)",
2179 .raw_types = {
2180 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2181 BTF_TYPE_ENC(NAME_TBD,
2182 BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */
2183 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
2184 BTF_END_RAW,
2185 },
2186 .str_sec = "\0A!\0B",
2187 .str_sec_size = sizeof("\0A!\0B"),
2188 .map_type = BPF_MAP_TYPE_ARRAY,
2189 .map_name = "struct_type_check_btf",
2190 .key_size = sizeof(int),
2191 .value_size = sizeof(int),
2192 .key_type_id = 1,
2193 .value_type_id = 1,
2194 .max_entries = 4,
2195 .btf_load_err = true,
2196 .err_str = "Invalid name",
2197 },
2198
2199 {
2200 .descr = "struct member (name_off = 0)",
2201 .raw_types = {
2202 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2203 BTF_TYPE_ENC(0,
2204 BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */
2205 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
2206 BTF_END_RAW,
2207 },
2208 .str_sec = "\0A",
2209 .str_sec_size = sizeof("\0A"),
2210 .map_type = BPF_MAP_TYPE_ARRAY,
2211 .map_name = "struct_type_check_btf",
2212 .key_size = sizeof(int),
2213 .value_size = sizeof(int),
2214 .key_type_id = 1,
2215 .value_type_id = 1,
2216 .max_entries = 4,
2217 },
2218
2219 {
2220 .descr = "struct member (invalid name, invalid identifier)",
2221 .raw_types = {
2222 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2223 BTF_TYPE_ENC(NAME_TBD,
2224 BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */
2225 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
2226 BTF_END_RAW,
2227 },
2228 .str_sec = "\0A\0B*",
2229 .str_sec_size = sizeof("\0A\0B*"),
2230 .map_type = BPF_MAP_TYPE_ARRAY,
2231 .map_name = "struct_type_check_btf",
2232 .key_size = sizeof(int),
2233 .value_size = sizeof(int),
2234 .key_type_id = 1,
2235 .value_type_id = 1,
2236 .max_entries = 4,
2237 .btf_load_err = true,
2238 .err_str = "Invalid name",
2239 },
2240
2241 {
2242 .descr = "enum type (name_off = 0)",
2243 .raw_types = {
2244 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2245 BTF_TYPE_ENC(0,
2246 BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1),
2247 sizeof(int)), /* [2] */
2248 BTF_ENUM_ENC(NAME_TBD, 0),
2249 BTF_END_RAW,
2250 },
2251 .str_sec = "\0A\0B",
2252 .str_sec_size = sizeof("\0A\0B"),
2253 .map_type = BPF_MAP_TYPE_ARRAY,
2254 .map_name = "enum_type_check_btf",
2255 .key_size = sizeof(int),
2256 .value_size = sizeof(int),
2257 .key_type_id = 1,
2258 .value_type_id = 1,
2259 .max_entries = 4,
2260 },
2261
2262 {
2263 .descr = "enum type (invalid name, invalid identifier)",
2264 .raw_types = {
2265 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2266 BTF_TYPE_ENC(NAME_TBD,
2267 BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1),
2268 sizeof(int)), /* [2] */
2269 BTF_ENUM_ENC(NAME_TBD, 0),
2270 BTF_END_RAW,
2271 },
2272 .str_sec = "\0A!\0B",
2273 .str_sec_size = sizeof("\0A!\0B"),
2274 .map_type = BPF_MAP_TYPE_ARRAY,
2275 .map_name = "enum_type_check_btf",
2276 .key_size = sizeof(int),
2277 .value_size = sizeof(int),
2278 .key_type_id = 1,
2279 .value_type_id = 1,
2280 .max_entries = 4,
2281 .btf_load_err = true,
2282 .err_str = "Invalid name",
2283 },
2284
2285 {
2286 .descr = "enum member (invalid name, name_off = 0)",
2287 .raw_types = {
2288 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2289 BTF_TYPE_ENC(0,
2290 BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1),
2291 sizeof(int)), /* [2] */
2292 BTF_ENUM_ENC(0, 0),
2293 BTF_END_RAW,
2294 },
2295 .str_sec = "",
2296 .str_sec_size = sizeof(""),
2297 .map_type = BPF_MAP_TYPE_ARRAY,
2298 .map_name = "enum_type_check_btf",
2299 .key_size = sizeof(int),
2300 .value_size = sizeof(int),
2301 .key_type_id = 1,
2302 .value_type_id = 1,
2303 .max_entries = 4,
2304 .btf_load_err = true,
2305 .err_str = "Invalid name",
2306 },
2307
2308 {
2309 .descr = "enum member (invalid name, invalid identifier)",
2310 .raw_types = {
2311 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2312 BTF_TYPE_ENC(0,
2313 BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1),
2314 sizeof(int)), /* [2] */
2315 BTF_ENUM_ENC(NAME_TBD, 0),
2316 BTF_END_RAW,
2317 },
2318 .str_sec = "\0A!",
2319 .str_sec_size = sizeof("\0A!"),
2320 .map_type = BPF_MAP_TYPE_ARRAY,
2321 .map_name = "enum_type_check_btf",
2322 .key_size = sizeof(int),
2323 .value_size = sizeof(int),
2324 .key_type_id = 1,
2325 .value_type_id = 1,
2326 .max_entries = 4,
2327 .btf_load_err = true,
2328 .err_str = "Invalid name",
2329 },
2330 {
2331 .descr = "arraymap invalid btf key (a bit field)",
2332 .raw_types = {
2333 /* int */ /* [1] */
2334 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
2335 /* 32 bit int with 32 bit offset */ /* [2] */
2336 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 32, 32, 8),
2337 BTF_END_RAW,
2338 },
2339 .str_sec = "",
2340 .str_sec_size = sizeof(""),
2341 .map_type = BPF_MAP_TYPE_ARRAY,
2342 .map_name = "array_map_check_btf",
2343 .key_size = sizeof(int),
2344 .value_size = sizeof(int),
2345 .key_type_id = 2,
2346 .value_type_id = 1,
2347 .max_entries = 4,
2348 .map_create_err = true,
2349 },
2350
2351 {
2352 .descr = "arraymap invalid btf key (!= 32 bits)",
2353 .raw_types = {
2354 /* int */ /* [1] */
2355 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
2356 /* 16 bit int with 0 bit offset */ /* [2] */
2357 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 16, 2),
2358 BTF_END_RAW,
2359 },
2360 .str_sec = "",
2361 .str_sec_size = sizeof(""),
2362 .map_type = BPF_MAP_TYPE_ARRAY,
2363 .map_name = "array_map_check_btf",
2364 .key_size = sizeof(int),
2365 .value_size = sizeof(int),
2366 .key_type_id = 2,
2367 .value_type_id = 1,
2368 .max_entries = 4,
2369 .map_create_err = true,
2370 },
2371
2372 {
2373 .descr = "arraymap invalid btf value (too small)",
2374 .raw_types = {
2375 /* int */ /* [1] */
2376 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
2377 BTF_END_RAW,
2378 },
2379 .str_sec = "",
2380 .str_sec_size = sizeof(""),
2381 .map_type = BPF_MAP_TYPE_ARRAY,
2382 .map_name = "array_map_check_btf",
2383 .key_size = sizeof(int),
2384 /* btf_value_size < map->value_size */
2385 .value_size = sizeof(__u64),
2386 .key_type_id = 1,
2387 .value_type_id = 1,
2388 .max_entries = 4,
2389 .map_create_err = true,
2390 },
2391
2392 {
2393 .descr = "arraymap invalid btf value (too big)",
2394 .raw_types = {
2395 /* int */ /* [1] */
2396 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
2397 BTF_END_RAW,
2398 },
2399 .str_sec = "",
2400 .str_sec_size = sizeof(""),
2401 .map_type = BPF_MAP_TYPE_ARRAY,
2402 .map_name = "array_map_check_btf",
2403 .key_size = sizeof(int),
2404 /* btf_value_size > map->value_size */
2405 .value_size = sizeof(__u16),
2406 .key_type_id = 1,
2407 .value_type_id = 1,
2408 .max_entries = 4,
2409 .map_create_err = true,
2410 },
2411
2412 {
2413 .descr = "func proto (int (*)(int, unsigned int))",
2414 .raw_types = {
2415 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2416 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2417 /* int (*)(int, unsigned int) */
2418 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */
2419 BTF_FUNC_PROTO_ARG_ENC(0, 1),
2420 BTF_FUNC_PROTO_ARG_ENC(0, 2),
2421 BTF_END_RAW,
2422 },
2423 .str_sec = "",
2424 .str_sec_size = sizeof(""),
2425 .map_type = BPF_MAP_TYPE_ARRAY,
2426 .map_name = "func_proto_type_check_btf",
2427 .key_size = sizeof(int),
2428 .value_size = sizeof(int),
2429 .key_type_id = 1,
2430 .value_type_id = 1,
2431 .max_entries = 4,
2432 },
2433
2434 {
2435 .descr = "func proto (vararg)",
2436 .raw_types = {
2437 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2438 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2439 /* void (*)(int, unsigned int, ...) */
2440 BTF_FUNC_PROTO_ENC(0, 3), /* [3] */
2441 BTF_FUNC_PROTO_ARG_ENC(0, 1),
2442 BTF_FUNC_PROTO_ARG_ENC(0, 2),
2443 BTF_FUNC_PROTO_ARG_ENC(0, 0),
2444 BTF_END_RAW,
2445 },
2446 .str_sec = "",
2447 .str_sec_size = sizeof(""),
2448 .map_type = BPF_MAP_TYPE_ARRAY,
2449 .map_name = "func_proto_type_check_btf",
2450 .key_size = sizeof(int),
2451 .value_size = sizeof(int),
2452 .key_type_id = 1,
2453 .value_type_id = 1,
2454 .max_entries = 4,
2455 },
2456
2457 {
2458 .descr = "func proto (vararg with name)",
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, ... c) */
2463 BTF_FUNC_PROTO_ENC(0, 3), /* [3] */
2464 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
2465 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
2466 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 0),
2467 BTF_END_RAW,
2468 },
2469 .str_sec = "\0a\0b\0c",
2470 .str_sec_size = sizeof("\0a\0b\0c"),
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#3",
2480 },
2481
2482 {
2483 .descr = "func proto (arg after vararg)",
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 /* void (*)(int a, ..., unsigned int b) */
2488 BTF_FUNC_PROTO_ENC(0, 3), /* [3] */
2489 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
2490 BTF_FUNC_PROTO_ARG_ENC(0, 0),
2491 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
2492 BTF_END_RAW,
2493 },
2494 .str_sec = "\0a\0b",
2495 .str_sec_size = sizeof("\0a\0b"),
2496 .map_type = BPF_MAP_TYPE_ARRAY,
2497 .map_name = "func_proto_type_check_btf",
2498 .key_size = sizeof(int),
2499 .value_size = sizeof(int),
2500 .key_type_id = 1,
2501 .value_type_id = 1,
2502 .max_entries = 4,
2503 .btf_load_err = true,
2504 .err_str = "Invalid arg#2",
2505 },
2506
2507 {
2508 .descr = "func proto (CONST=>TYPEDEF=>PTR=>FUNC_PROTO)",
2509 .raw_types = {
2510 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2511 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2512 /* typedef void (*func_ptr)(int, unsigned int) */
2513 BTF_TYPEDEF_ENC(NAME_TBD, 5), /* [3] */
2514 /* const func_ptr */
2515 BTF_CONST_ENC(3), /* [4] */
2516 BTF_PTR_ENC(6), /* [5] */
2517 BTF_FUNC_PROTO_ENC(0, 2), /* [6] */
2518 BTF_FUNC_PROTO_ARG_ENC(0, 1),
2519 BTF_FUNC_PROTO_ARG_ENC(0, 2),
2520 BTF_END_RAW,
2521 },
2522 .str_sec = "\0func_ptr",
2523 .str_sec_size = sizeof("\0func_ptr"),
2524 .map_type = BPF_MAP_TYPE_ARRAY,
2525 .map_name = "func_proto_type_check_btf",
2526 .key_size = sizeof(int),
2527 .value_size = sizeof(int),
2528 .key_type_id = 1,
2529 .value_type_id = 1,
2530 .max_entries = 4,
2531 },
2532
2533 {
2534 .descr = "func proto (TYPEDEF=>FUNC_PROTO)",
2535 .raw_types = {
2536 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2537 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2538 BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */
2539 BTF_FUNC_PROTO_ENC(0, 2), /* [4] */
2540 BTF_FUNC_PROTO_ARG_ENC(0, 1),
2541 BTF_FUNC_PROTO_ARG_ENC(0, 2),
2542 BTF_END_RAW,
2543 },
2544 .str_sec = "\0func_typedef",
2545 .str_sec_size = sizeof("\0func_typedef"),
2546 .map_type = BPF_MAP_TYPE_ARRAY,
2547 .map_name = "func_proto_type_check_btf",
2548 .key_size = sizeof(int),
2549 .value_size = sizeof(int),
2550 .key_type_id = 1,
2551 .value_type_id = 1,
2552 .max_entries = 4,
2553 },
2554
2555 {
2556 .descr = "func proto (btf_resolve(arg))",
2557 .raw_types = {
2558 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2559 /* void (*)(const void *) */
2560 BTF_FUNC_PROTO_ENC(0, 1), /* [2] */
2561 BTF_FUNC_PROTO_ARG_ENC(0, 3),
2562 BTF_CONST_ENC(4), /* [3] */
2563 BTF_PTR_ENC(0), /* [4] */
2564 BTF_END_RAW,
2565 },
2566 .str_sec = "",
2567 .str_sec_size = sizeof(""),
2568 .map_type = BPF_MAP_TYPE_ARRAY,
2569 .map_name = "func_proto_type_check_btf",
2570 .key_size = sizeof(int),
2571 .value_size = sizeof(int),
2572 .key_type_id = 1,
2573 .value_type_id = 1,
2574 .max_entries = 4,
2575 },
2576
2577 {
2578 .descr = "func proto (Not all arg has name)",
2579 .raw_types = {
2580 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2581 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2582 /* void (*)(int, unsigned int b) */
2583 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */
2584 BTF_FUNC_PROTO_ARG_ENC(0, 1),
2585 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
2586 BTF_END_RAW,
2587 },
2588 .str_sec = "\0b",
2589 .str_sec_size = sizeof("\0b"),
2590 .map_type = BPF_MAP_TYPE_ARRAY,
2591 .map_name = "func_proto_type_check_btf",
2592 .key_size = sizeof(int),
2593 .value_size = sizeof(int),
2594 .key_type_id = 1,
2595 .value_type_id = 1,
2596 .max_entries = 4,
2597 },
2598
2599 {
2600 .descr = "func proto (Bad arg name_off)",
2601 .raw_types = {
2602 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2603 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2604 /* void (*)(int a, unsigned int <bad_name_off>) */
2605 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */
2606 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
2607 BTF_FUNC_PROTO_ARG_ENC(0x0fffffff, 2),
2608 BTF_END_RAW,
2609 },
2610 .str_sec = "\0a",
2611 .str_sec_size = sizeof("\0a"),
2612 .map_type = BPF_MAP_TYPE_ARRAY,
2613 .map_name = "func_proto_type_check_btf",
2614 .key_size = sizeof(int),
2615 .value_size = sizeof(int),
2616 .key_type_id = 1,
2617 .value_type_id = 1,
2618 .max_entries = 4,
2619 .btf_load_err = true,
2620 .err_str = "Invalid arg#2",
2621 },
2622
2623 {
2624 .descr = "func proto (Bad arg name)",
2625 .raw_types = {
2626 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2627 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2628 /* void (*)(int a, unsigned int !!!) */
2629 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */
2630 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
2631 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
2632 BTF_END_RAW,
2633 },
2634 .str_sec = "\0a\0!!!",
2635 .str_sec_size = sizeof("\0a\0!!!"),
2636 .map_type = BPF_MAP_TYPE_ARRAY,
2637 .map_name = "func_proto_type_check_btf",
2638 .key_size = sizeof(int),
2639 .value_size = sizeof(int),
2640 .key_type_id = 1,
2641 .value_type_id = 1,
2642 .max_entries = 4,
2643 .btf_load_err = true,
2644 .err_str = "Invalid arg#2",
2645 },
2646
2647 {
2648 .descr = "func proto (Invalid return type)",
2649 .raw_types = {
2650 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2651 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2652 /* <bad_ret_type> (*)(int, unsigned int) */
2653 BTF_FUNC_PROTO_ENC(100, 2), /* [3] */
2654 BTF_FUNC_PROTO_ARG_ENC(0, 1),
2655 BTF_FUNC_PROTO_ARG_ENC(0, 2),
2656 BTF_END_RAW,
2657 },
2658 .str_sec = "",
2659 .str_sec_size = sizeof(""),
2660 .map_type = BPF_MAP_TYPE_ARRAY,
2661 .map_name = "func_proto_type_check_btf",
2662 .key_size = sizeof(int),
2663 .value_size = sizeof(int),
2664 .key_type_id = 1,
2665 .value_type_id = 1,
2666 .max_entries = 4,
2667 .btf_load_err = true,
2668 .err_str = "Invalid return type",
2669 },
2670
2671 {
2672 .descr = "func proto (with func name)",
2673 .raw_types = {
2674 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2675 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2676 /* void func_proto(int, unsigned int) */
2677 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, 2), 0), /* [3] */
2678 BTF_FUNC_PROTO_ARG_ENC(0, 1),
2679 BTF_FUNC_PROTO_ARG_ENC(0, 2),
2680 BTF_END_RAW,
2681 },
2682 .str_sec = "\0func_proto",
2683 .str_sec_size = sizeof("\0func_proto"),
2684 .map_type = BPF_MAP_TYPE_ARRAY,
2685 .map_name = "func_proto_type_check_btf",
2686 .key_size = sizeof(int),
2687 .value_size = sizeof(int),
2688 .key_type_id = 1,
2689 .value_type_id = 1,
2690 .max_entries = 4,
2691 .btf_load_err = true,
2692 .err_str = "Invalid name",
2693 },
2694
2695 {
2696 .descr = "func proto (const void arg)",
2697 .raw_types = {
2698 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2699 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2700 /* void (*)(const void) */
2701 BTF_FUNC_PROTO_ENC(0, 1), /* [3] */
2702 BTF_FUNC_PROTO_ARG_ENC(0, 4),
2703 BTF_CONST_ENC(0), /* [4] */
2704 BTF_END_RAW,
2705 },
2706 .str_sec = "",
2707 .str_sec_size = sizeof(""),
2708 .map_type = BPF_MAP_TYPE_ARRAY,
2709 .map_name = "func_proto_type_check_btf",
2710 .key_size = sizeof(int),
2711 .value_size = sizeof(int),
2712 .key_type_id = 1,
2713 .value_type_id = 1,
2714 .max_entries = 4,
2715 .btf_load_err = true,
2716 .err_str = "Invalid arg#1",
2717 },
2718
2719 {
2720 .descr = "func (void func(int a, unsigned int b))",
2721 .raw_types = {
2722 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2723 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2724 /* void (*)(int a, unsigned int b) */
2725 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */
2726 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
2727 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
2728 /* void func(int a, unsigned int b) */
2729 BTF_FUNC_ENC(NAME_TBD, 3), /* [4] */
2730 BTF_END_RAW,
2731 },
2732 .str_sec = "\0a\0b\0func",
2733 .str_sec_size = sizeof("\0a\0b\0func"),
2734 .map_type = BPF_MAP_TYPE_ARRAY,
2735 .map_name = "func_type_check_btf",
2736 .key_size = sizeof(int),
2737 .value_size = sizeof(int),
2738 .key_type_id = 1,
2739 .value_type_id = 1,
2740 .max_entries = 4,
2741 },
2742
2743 {
2744 .descr = "func (No func name)",
2745 .raw_types = {
2746 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2747 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2748 /* void (*)(int a, unsigned int b) */
2749 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */
2750 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
2751 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
2752 /* void <no_name>(int a, unsigned int b) */
2753 BTF_FUNC_ENC(0, 3), /* [4] */
2754 BTF_END_RAW,
2755 },
2756 .str_sec = "\0a\0b",
2757 .str_sec_size = sizeof("\0a\0b"),
2758 .map_type = BPF_MAP_TYPE_ARRAY,
2759 .map_name = "func_type_check_btf",
2760 .key_size = sizeof(int),
2761 .value_size = sizeof(int),
2762 .key_type_id = 1,
2763 .value_type_id = 1,
2764 .max_entries = 4,
2765 .btf_load_err = true,
2766 .err_str = "Invalid name",
2767 },
2768
2769 {
2770 .descr = "func (Invalid func name)",
2771 .raw_types = {
2772 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2773 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2774 /* void (*)(int a, unsigned int b) */
2775 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */
2776 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
2777 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
2778 /* void !!!(int a, unsigned int b) */
2779 BTF_FUNC_ENC(NAME_TBD, 3), /* [4] */
2780 BTF_END_RAW,
2781 },
2782 .str_sec = "\0a\0b\0!!!",
2783 .str_sec_size = sizeof("\0a\0b\0!!!"),
2784 .map_type = BPF_MAP_TYPE_ARRAY,
2785 .map_name = "func_type_check_btf",
2786 .key_size = sizeof(int),
2787 .value_size = sizeof(int),
2788 .key_type_id = 1,
2789 .value_type_id = 1,
2790 .max_entries = 4,
2791 .btf_load_err = true,
2792 .err_str = "Invalid name",
2793 },
2794
2795 {
2796 .descr = "func (Some arg has no name)",
2797 .raw_types = {
2798 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2799 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2800 /* void (*)(int a, unsigned int) */
2801 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */
2802 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
2803 BTF_FUNC_PROTO_ARG_ENC(0, 2),
2804 /* void func(int a, unsigned int) */
2805 BTF_FUNC_ENC(NAME_TBD, 3), /* [4] */
2806 BTF_END_RAW,
2807 },
2808 .str_sec = "\0a\0func",
2809 .str_sec_size = sizeof("\0a\0func"),
2810 .map_type = BPF_MAP_TYPE_ARRAY,
2811 .map_name = "func_type_check_btf",
2812 .key_size = sizeof(int),
2813 .value_size = sizeof(int),
2814 .key_type_id = 1,
2815 .value_type_id = 1,
2816 .max_entries = 4,
2817 .btf_load_err = true,
2818 .err_str = "Invalid arg#2",
2819 },
2820
2821 {
2822 .descr = "func (Non zero vlen)",
2823 .raw_types = {
2824 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2825 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */
2826 /* void (*)(int a, unsigned int b) */
2827 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */
2828 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
2829 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
2830 /* void func(int a, unsigned int b) */
2831 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC, 0, 2), 3), /* [4] */
2832 BTF_END_RAW,
2833 },
2834 .str_sec = "\0a\0b\0func",
2835 .str_sec_size = sizeof("\0a\0b\0func"),
2836 .map_type = BPF_MAP_TYPE_ARRAY,
2837 .map_name = "func_type_check_btf",
2838 .key_size = sizeof(int),
2839 .value_size = sizeof(int),
2840 .key_type_id = 1,
2841 .value_type_id = 1,
2842 .max_entries = 4,
2843 .btf_load_err = true,
2844 .err_str = "Invalid func linkage",
2845 },
2846
2847 {
2848 .descr = "func (Not referring to FUNC_PROTO)",
2849 .raw_types = {
2850 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2851 BTF_FUNC_ENC(NAME_TBD, 1), /* [2] */
2852 BTF_END_RAW,
2853 },
2854 .str_sec = "\0func",
2855 .str_sec_size = sizeof("\0func"),
2856 .map_type = BPF_MAP_TYPE_ARRAY,
2857 .map_name = "func_type_check_btf",
2858 .key_size = sizeof(int),
2859 .value_size = sizeof(int),
2860 .key_type_id = 1,
2861 .value_type_id = 1,
2862 .max_entries = 4,
2863 .btf_load_err = true,
2864 .err_str = "Invalid type_id",
2865 },
2866
2867 {
2868 .descr = "invalid int kind_flag",
2869 .raw_types = {
2870 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2871 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_INT, 1, 0), 4), /* [2] */
2872 BTF_INT_ENC(0, 0, 32),
2873 BTF_END_RAW,
2874 },
2875 BTF_STR_SEC(""),
2876 .map_type = BPF_MAP_TYPE_ARRAY,
2877 .map_name = "int_type_check_btf",
2878 .key_size = sizeof(int),
2879 .value_size = sizeof(int),
2880 .key_type_id = 1,
2881 .value_type_id = 1,
2882 .max_entries = 4,
2883 .btf_load_err = true,
2884 .err_str = "Invalid btf_info kind_flag",
2885 },
2886
2887 {
2888 .descr = "invalid ptr kind_flag",
2889 .raw_types = {
2890 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2891 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 1, 0), 1), /* [2] */
2892 BTF_END_RAW,
2893 },
2894 BTF_STR_SEC(""),
2895 .map_type = BPF_MAP_TYPE_ARRAY,
2896 .map_name = "ptr_type_check_btf",
2897 .key_size = sizeof(int),
2898 .value_size = sizeof(int),
2899 .key_type_id = 1,
2900 .value_type_id = 1,
2901 .max_entries = 4,
2902 .btf_load_err = true,
2903 .err_str = "Invalid btf_info kind_flag",
2904 },
2905
2906 {
2907 .descr = "invalid array kind_flag",
2908 .raw_types = {
2909 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2910 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 1, 0), 0), /* [2] */
2911 BTF_ARRAY_ENC(1, 1, 1),
2912 BTF_END_RAW,
2913 },
2914 BTF_STR_SEC(""),
2915 .map_type = BPF_MAP_TYPE_ARRAY,
2916 .map_name = "array_type_check_btf",
2917 .key_size = sizeof(int),
2918 .value_size = sizeof(int),
2919 .key_type_id = 1,
2920 .value_type_id = 1,
2921 .max_entries = 4,
2922 .btf_load_err = true,
2923 .err_str = "Invalid btf_info kind_flag",
2924 },
2925
2926 {
2927 .descr = "valid fwd kind_flag",
2928 .raw_types = {
2929 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2930 BTF_TYPE_ENC(NAME_TBD,
2931 BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [2] */
2932 BTF_END_RAW,
2933 },
2934 BTF_STR_SEC("\0A"),
2935 .map_type = BPF_MAP_TYPE_ARRAY,
2936 .map_name = "fwd_type_check_btf",
2937 .key_size = sizeof(int),
2938 .value_size = sizeof(int),
2939 .key_type_id = 1,
2940 .value_type_id = 1,
2941 .max_entries = 4,
2942 },
2943
2944 {
2945 .descr = "invalid typedef kind_flag",
2946 .raw_types = {
2947 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2948 BTF_TYPE_ENC(NAME_TBD,
2949 BTF_INFO_ENC(BTF_KIND_TYPEDEF, 1, 0), 1), /* [2] */
2950 BTF_END_RAW,
2951 },
2952 BTF_STR_SEC("\0A"),
2953 .map_type = BPF_MAP_TYPE_ARRAY,
2954 .map_name = "typedef_type_check_btf",
2955 .key_size = sizeof(int),
2956 .value_size = sizeof(int),
2957 .key_type_id = 1,
2958 .value_type_id = 1,
2959 .max_entries = 4,
2960 .btf_load_err = true,
2961 .err_str = "Invalid btf_info kind_flag",
2962 },
2963
2964 {
2965 .descr = "invalid volatile kind_flag",
2966 .raw_types = {
2967 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2968 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 1, 0), 1), /* [2] */
2969 BTF_END_RAW,
2970 },
2971 BTF_STR_SEC(""),
2972 .map_type = BPF_MAP_TYPE_ARRAY,
2973 .map_name = "volatile_type_check_btf",
2974 .key_size = sizeof(int),
2975 .value_size = sizeof(int),
2976 .key_type_id = 1,
2977 .value_type_id = 1,
2978 .max_entries = 4,
2979 .btf_load_err = true,
2980 .err_str = "Invalid btf_info kind_flag",
2981 },
2982
2983 {
2984 .descr = "invalid const kind_flag",
2985 .raw_types = {
2986 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
2987 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 1, 0), 1), /* [2] */
2988 BTF_END_RAW,
2989 },
2990 BTF_STR_SEC(""),
2991 .map_type = BPF_MAP_TYPE_ARRAY,
2992 .map_name = "const_type_check_btf",
2993 .key_size = sizeof(int),
2994 .value_size = sizeof(int),
2995 .key_type_id = 1,
2996 .value_type_id = 1,
2997 .max_entries = 4,
2998 .btf_load_err = true,
2999 .err_str = "Invalid btf_info kind_flag",
3000 },
3001
3002 {
3003 .descr = "invalid restrict kind_flag",
3004 .raw_types = {
3005 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3006 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_RESTRICT, 1, 0), 1), /* [2] */
3007 BTF_END_RAW,
3008 },
3009 BTF_STR_SEC(""),
3010 .map_type = BPF_MAP_TYPE_ARRAY,
3011 .map_name = "restrict_type_check_btf",
3012 .key_size = sizeof(int),
3013 .value_size = sizeof(int),
3014 .key_type_id = 1,
3015 .value_type_id = 1,
3016 .max_entries = 4,
3017 .btf_load_err = true,
3018 .err_str = "Invalid btf_info kind_flag",
3019 },
3020
3021 {
3022 .descr = "invalid func kind_flag",
3023 .raw_types = {
3024 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3025 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, 0), 0), /* [2] */
3026 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC, 1, 0), 2), /* [3] */
3027 BTF_END_RAW,
3028 },
3029 BTF_STR_SEC("\0A"),
3030 .map_type = BPF_MAP_TYPE_ARRAY,
3031 .map_name = "func_type_check_btf",
3032 .key_size = sizeof(int),
3033 .value_size = sizeof(int),
3034 .key_type_id = 1,
3035 .value_type_id = 1,
3036 .max_entries = 4,
3037 .btf_load_err = true,
3038 .err_str = "Invalid btf_info kind_flag",
3039 },
3040
3041 {
3042 .descr = "invalid func_proto kind_flag",
3043 .raw_types = {
3044 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3045 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 1, 0), 0), /* [2] */
3046 BTF_END_RAW,
3047 },
3048 BTF_STR_SEC(""),
3049 .map_type = BPF_MAP_TYPE_ARRAY,
3050 .map_name = "func_proto_type_check_btf",
3051 .key_size = sizeof(int),
3052 .value_size = sizeof(int),
3053 .key_type_id = 1,
3054 .value_type_id = 1,
3055 .max_entries = 4,
3056 .btf_load_err = true,
3057 .err_str = "Invalid btf_info kind_flag",
3058 },
3059
3060 {
3061 .descr = "valid struct, kind_flag, bitfield_size = 0",
3062 .raw_types = {
3063 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3064 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 8), /* [2] */
3065 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(0, 0)),
3066 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(0, 32)),
3067 BTF_END_RAW,
3068 },
3069 BTF_STR_SEC("\0A\0B"),
3070 .map_type = BPF_MAP_TYPE_ARRAY,
3071 .map_name = "struct_type_check_btf",
3072 .key_size = sizeof(int),
3073 .value_size = sizeof(int),
3074 .key_type_id = 1,
3075 .value_type_id = 1,
3076 .max_entries = 4,
3077 },
3078
3079 {
3080 .descr = "valid struct, kind_flag, int member, bitfield_size != 0",
3081 .raw_types = {
3082 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3083 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [2] */
3084 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)),
3085 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 4)),
3086 BTF_END_RAW,
3087 },
3088 BTF_STR_SEC("\0A\0B"),
3089 .map_type = BPF_MAP_TYPE_ARRAY,
3090 .map_name = "struct_type_check_btf",
3091 .key_size = sizeof(int),
3092 .value_size = sizeof(int),
3093 .key_type_id = 1,
3094 .value_type_id = 1,
3095 .max_entries = 4,
3096 },
3097
3098 {
3099 .descr = "valid union, kind_flag, int member, bitfield_size != 0",
3100 .raw_types = {
3101 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3102 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4), /* [2] */
3103 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)),
3104 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)),
3105 BTF_END_RAW,
3106 },
3107 BTF_STR_SEC("\0A\0B"),
3108 .map_type = BPF_MAP_TYPE_ARRAY,
3109 .map_name = "union_type_check_btf",
3110 .key_size = sizeof(int),
3111 .value_size = sizeof(int),
3112 .key_type_id = 1,
3113 .value_type_id = 1,
3114 .max_entries = 4,
3115 },
3116
3117 {
3118 .descr = "valid struct, kind_flag, enum member, bitfield_size != 0",
3119 .raw_types = {
3120 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3121 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */
3122 BTF_ENUM_ENC(NAME_TBD, 0),
3123 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),/* [3] */
3124 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)),
3125 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 4)),
3126 BTF_END_RAW,
3127 },
3128 BTF_STR_SEC("\0A\0B\0C"),
3129 .map_type = BPF_MAP_TYPE_ARRAY,
3130 .map_name = "struct_type_check_btf",
3131 .key_size = sizeof(int),
3132 .value_size = sizeof(int),
3133 .key_type_id = 1,
3134 .value_type_id = 1,
3135 .max_entries = 4,
3136 },
3137
3138 {
3139 .descr = "valid union, kind_flag, enum member, bitfield_size != 0",
3140 .raw_types = {
3141 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3142 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */
3143 BTF_ENUM_ENC(NAME_TBD, 0),
3144 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4), /* [3] */
3145 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)),
3146 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)),
3147 BTF_END_RAW,
3148 },
3149 BTF_STR_SEC("\0A\0B\0C"),
3150 .map_type = BPF_MAP_TYPE_ARRAY,
3151 .map_name = "union_type_check_btf",
3152 .key_size = sizeof(int),
3153 .value_size = sizeof(int),
3154 .key_type_id = 1,
3155 .value_type_id = 1,
3156 .max_entries = 4,
3157 },
3158
3159 {
3160 .descr = "valid struct, kind_flag, typedef member, bitfield_size != 0",
3161 .raw_types = {
3162 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3163 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */
3164 BTF_ENUM_ENC(NAME_TBD, 0),
3165 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),/* [3] */
3166 BTF_MEMBER_ENC(NAME_TBD, 4, BTF_MEMBER_OFFSET(4, 0)),
3167 BTF_MEMBER_ENC(NAME_TBD, 5, BTF_MEMBER_OFFSET(4, 4)),
3168 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [4] */
3169 BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [5] */
3170 BTF_END_RAW,
3171 },
3172 BTF_STR_SEC("\0A\0B\0C\0D\0E"),
3173 .map_type = BPF_MAP_TYPE_ARRAY,
3174 .map_name = "struct_type_check_btf",
3175 .key_size = sizeof(int),
3176 .value_size = sizeof(int),
3177 .key_type_id = 1,
3178 .value_type_id = 1,
3179 .max_entries = 4,
3180 },
3181
3182 {
3183 .descr = "valid union, kind_flag, typedef member, bitfield_size != 0",
3184 .raw_types = {
3185 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3186 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */
3187 BTF_ENUM_ENC(NAME_TBD, 0),
3188 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4), /* [3] */
3189 BTF_MEMBER_ENC(NAME_TBD, 4, BTF_MEMBER_OFFSET(4, 0)),
3190 BTF_MEMBER_ENC(NAME_TBD, 5, BTF_MEMBER_OFFSET(4, 0)),
3191 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [4] */
3192 BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [5] */
3193 BTF_END_RAW,
3194 },
3195 BTF_STR_SEC("\0A\0B\0C\0D\0E"),
3196 .map_type = BPF_MAP_TYPE_ARRAY,
3197 .map_name = "union_type_check_btf",
3198 .key_size = sizeof(int),
3199 .value_size = sizeof(int),
3200 .key_type_id = 1,
3201 .value_type_id = 1,
3202 .max_entries = 4,
3203 },
3204
3205 {
3206 .descr = "invalid struct, kind_flag, bitfield_size greater than struct size",
3207 .raw_types = {
3208 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3209 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [2] */
3210 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 0)),
3211 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 20)),
3212 BTF_END_RAW,
3213 },
3214 BTF_STR_SEC("\0A\0B"),
3215 .map_type = BPF_MAP_TYPE_ARRAY,
3216 .map_name = "struct_type_check_btf",
3217 .key_size = sizeof(int),
3218 .value_size = sizeof(int),
3219 .key_type_id = 1,
3220 .value_type_id = 1,
3221 .max_entries = 4,
3222 .btf_load_err = true,
3223 .err_str = "Member exceeds struct_size",
3224 },
3225
3226 {
3227 .descr = "invalid struct, kind_flag, bitfield base_type int not regular",
3228 .raw_types = {
3229 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3230 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 20, 4), /* [2] */
3231 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [3] */
3232 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(20, 0)),
3233 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(20, 20)),
3234 BTF_END_RAW,
3235 },
3236 BTF_STR_SEC("\0A\0B"),
3237 .map_type = BPF_MAP_TYPE_ARRAY,
3238 .map_name = "struct_type_check_btf",
3239 .key_size = sizeof(int),
3240 .value_size = sizeof(int),
3241 .key_type_id = 1,
3242 .value_type_id = 1,
3243 .max_entries = 4,
3244 .btf_load_err = true,
3245 .err_str = "Invalid member base type",
3246 },
3247
3248 {
3249 .descr = "invalid struct, kind_flag, base_type int not regular",
3250 .raw_types = {
3251 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3252 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 12, 4), /* [2] */
3253 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [3] */
3254 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(8, 0)),
3255 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(8, 8)),
3256 BTF_END_RAW,
3257 },
3258 BTF_STR_SEC("\0A\0B"),
3259 .map_type = BPF_MAP_TYPE_ARRAY,
3260 .map_name = "struct_type_check_btf",
3261 .key_size = sizeof(int),
3262 .value_size = sizeof(int),
3263 .key_type_id = 1,
3264 .value_type_id = 1,
3265 .max_entries = 4,
3266 .btf_load_err = true,
3267 .err_str = "Invalid member base type",
3268 },
3269
3270 {
3271 .descr = "invalid union, kind_flag, bitfield_size greater than struct size",
3272 .raw_types = {
3273 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3274 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 2), /* [2] */
3275 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(8, 0)),
3276 BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 0)),
3277 BTF_END_RAW,
3278 },
3279 BTF_STR_SEC("\0A\0B"),
3280 .map_type = BPF_MAP_TYPE_ARRAY,
3281 .map_name = "union_type_check_btf",
3282 .key_size = sizeof(int),
3283 .value_size = sizeof(int),
3284 .key_type_id = 1,
3285 .value_type_id = 1,
3286 .max_entries = 4,
3287 .btf_load_err = true,
3288 .err_str = "Member exceeds struct_size",
3289 },
3290
3291 {
3292 .descr = "invalid struct, kind_flag, int member, bitfield_size = 0, wrong byte alignment",
3293 .raw_types = {
3294 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3295 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */
3296 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 12), /* [3] */
3297 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)),
3298 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 36)),
3299 BTF_END_RAW,
3300 },
3301 BTF_STR_SEC("\0A\0B"),
3302 .map_type = BPF_MAP_TYPE_ARRAY,
3303 .map_name = "struct_type_check_btf",
3304 .key_size = sizeof(int),
3305 .value_size = sizeof(int),
3306 .key_type_id = 1,
3307 .value_type_id = 1,
3308 .max_entries = 4,
3309 .btf_load_err = true,
3310 .err_str = "Invalid member offset",
3311 },
3312
3313 {
3314 .descr = "invalid struct, kind_flag, enum member, bitfield_size = 0, wrong byte alignment",
3315 .raw_types = {
3316 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3317 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */
3318 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */
3319 BTF_ENUM_ENC(NAME_TBD, 0),
3320 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 12), /* [3] */
3321 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)),
3322 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 36)),
3323 BTF_END_RAW,
3324 },
3325 BTF_STR_SEC("\0A\0B\0C"),
3326 .map_type = BPF_MAP_TYPE_ARRAY,
3327 .map_name = "struct_type_check_btf",
3328 .key_size = sizeof(int),
3329 .value_size = sizeof(int),
3330 .key_type_id = 1,
3331 .value_type_id = 1,
3332 .max_entries = 4,
3333 .btf_load_err = true,
3334 .err_str = "Invalid member offset",
3335 },
3336
3337 {
3338 .descr = "128-bit int",
3339 .raw_types = {
3340 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3341 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16), /* [2] */
3342 BTF_END_RAW,
3343 },
3344 BTF_STR_SEC("\0A"),
3345 .map_type = BPF_MAP_TYPE_ARRAY,
3346 .map_name = "int_type_check_btf",
3347 .key_size = sizeof(int),
3348 .value_size = sizeof(int),
3349 .key_type_id = 1,
3350 .value_type_id = 1,
3351 .max_entries = 4,
3352 },
3353
3354 {
3355 .descr = "struct, 128-bit int member",
3356 .raw_types = {
3357 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3358 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16), /* [2] */
3359 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 16), /* [3] */
3360 BTF_MEMBER_ENC(NAME_TBD, 2, 0),
3361 BTF_END_RAW,
3362 },
3363 BTF_STR_SEC("\0A"),
3364 .map_type = BPF_MAP_TYPE_ARRAY,
3365 .map_name = "struct_type_check_btf",
3366 .key_size = sizeof(int),
3367 .value_size = sizeof(int),
3368 .key_type_id = 1,
3369 .value_type_id = 1,
3370 .max_entries = 4,
3371 },
3372
3373 {
3374 .descr = "struct, 120-bit int member bitfield",
3375 .raw_types = {
3376 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3377 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 120, 16), /* [2] */
3378 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 16), /* [3] */
3379 BTF_MEMBER_ENC(NAME_TBD, 2, 0),
3380 BTF_END_RAW,
3381 },
3382 BTF_STR_SEC("\0A"),
3383 .map_type = BPF_MAP_TYPE_ARRAY,
3384 .map_name = "struct_type_check_btf",
3385 .key_size = sizeof(int),
3386 .value_size = sizeof(int),
3387 .key_type_id = 1,
3388 .value_type_id = 1,
3389 .max_entries = 4,
3390 },
3391
3392 {
3393 .descr = "struct, kind_flag, 128-bit int member",
3394 .raw_types = {
3395 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3396 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16), /* [2] */
3397 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 16), /* [3] */
3398 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)),
3399 BTF_END_RAW,
3400 },
3401 BTF_STR_SEC("\0A"),
3402 .map_type = BPF_MAP_TYPE_ARRAY,
3403 .map_name = "struct_type_check_btf",
3404 .key_size = sizeof(int),
3405 .value_size = sizeof(int),
3406 .key_type_id = 1,
3407 .value_type_id = 1,
3408 .max_entries = 4,
3409 },
3410
3411 {
3412 .descr = "struct, kind_flag, 120-bit int member bitfield",
3413 .raw_types = {
3414 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3415 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16), /* [2] */
3416 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 16), /* [3] */
3417 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(120, 0)),
3418 BTF_END_RAW,
3419 },
3420 BTF_STR_SEC("\0A"),
3421 .map_type = BPF_MAP_TYPE_ARRAY,
3422 .map_name = "struct_type_check_btf",
3423 .key_size = sizeof(int),
3424 .value_size = sizeof(int),
3425 .key_type_id = 1,
3426 .value_type_id = 1,
3427 .max_entries = 4,
3428 },
3429 /*
3430 * typedef int arr_t[16];
3431 * struct s {
3432 * arr_t *a;
3433 * };
3434 */
3435 {
3436 .descr = "struct->ptr->typedef->array->int size resolution",
3437 .raw_types = {
3438 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [1] */
3439 BTF_MEMBER_ENC(NAME_TBD, 2, 0),
3440 BTF_PTR_ENC(3), /* [2] */
3441 BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */
3442 BTF_TYPE_ARRAY_ENC(5, 5, 16), /* [4] */
3443 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [5] */
3444 BTF_END_RAW,
3445 },
3446 BTF_STR_SEC("\0s\0a\0arr_t"),
3447 .map_type = BPF_MAP_TYPE_ARRAY,
3448 .map_name = "ptr_mod_chain_size_resolve_map",
3449 .key_size = sizeof(int),
3450 .value_size = sizeof(int) * 16,
3451 .key_type_id = 5 /* int */,
3452 .value_type_id = 3 /* arr_t */,
3453 .max_entries = 4,
3454 },
3455 /*
3456 * typedef int arr_t[16][8][4];
3457 * struct s {
3458 * arr_t *a;
3459 * };
3460 */
3461 {
3462 .descr = "struct->ptr->typedef->multi-array->int size resolution",
3463 .raw_types = {
3464 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [1] */
3465 BTF_MEMBER_ENC(NAME_TBD, 2, 0),
3466 BTF_PTR_ENC(3), /* [2] */
3467 BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */
3468 BTF_TYPE_ARRAY_ENC(5, 7, 16), /* [4] */
3469 BTF_TYPE_ARRAY_ENC(6, 7, 8), /* [5] */
3470 BTF_TYPE_ARRAY_ENC(7, 7, 4), /* [6] */
3471 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [7] */
3472 BTF_END_RAW,
3473 },
3474 BTF_STR_SEC("\0s\0a\0arr_t"),
3475 .map_type = BPF_MAP_TYPE_ARRAY,
3476 .map_name = "multi_arr_size_resolve_map",
3477 .key_size = sizeof(int),
3478 .value_size = sizeof(int) * 16 * 8 * 4,
3479 .key_type_id = 7 /* int */,
3480 .value_type_id = 3 /* arr_t */,
3481 .max_entries = 4,
3482 },
3483 /*
3484 * typedef int int_t;
3485 * typedef int_t arr3_t[4];
3486 * typedef arr3_t arr2_t[8];
3487 * typedef arr2_t arr1_t[16];
3488 * struct s {
3489 * arr1_t *a;
3490 * };
3491 */
3492 {
3493 .descr = "typedef/multi-arr mix size resolution",
3494 .raw_types = {
3495 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [1] */
3496 BTF_MEMBER_ENC(NAME_TBD, 2, 0),
3497 BTF_PTR_ENC(3), /* [2] */
3498 BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */
3499 BTF_TYPE_ARRAY_ENC(5, 10, 16), /* [4] */
3500 BTF_TYPEDEF_ENC(NAME_TBD, 6), /* [5] */
3501 BTF_TYPE_ARRAY_ENC(7, 10, 8), /* [6] */
3502 BTF_TYPEDEF_ENC(NAME_TBD, 8), /* [7] */
3503 BTF_TYPE_ARRAY_ENC(9, 10, 4), /* [8] */
3504 BTF_TYPEDEF_ENC(NAME_TBD, 10), /* [9] */
3505 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [10] */
3506 BTF_END_RAW,
3507 },
3508 BTF_STR_SEC("\0s\0a\0arr1_t\0arr2_t\0arr3_t\0int_t"),
3509 .map_type = BPF_MAP_TYPE_ARRAY,
3510 .map_name = "typedef_arra_mix_size_resolve_map",
3511 .key_size = sizeof(int),
3512 .value_size = sizeof(int) * 16 * 8 * 4,
3513 .key_type_id = 10 /* int */,
3514 .value_type_id = 3 /* arr_t */,
3515 .max_entries = 4,
3516 },
3517 /*
3518 * elf .rodata section size 4 and btf .rodata section vlen 0.
3519 */
3520 {
3521 .descr = "datasec: vlen == 0",
3522 .raw_types = {
3523 /* int */
3524 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3525 /* .rodata section */
3526 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 0), 4),
3527 /* [2] */
3528 BTF_END_RAW,
3529 },
3530 BTF_STR_SEC("\0.rodata"),
3531 .map_type = BPF_MAP_TYPE_ARRAY,
3532 .key_size = sizeof(int),
3533 .value_size = sizeof(int),
3534 .key_type_id = 1,
3535 .value_type_id = 1,
3536 .max_entries = 1,
3537 },
3538
3539 {
3540 .descr = "float test #1, well-formed",
3541 .raw_types = {
3542 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
3543 /* [1] */
3544 BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [2] */
3545 BTF_TYPE_FLOAT_ENC(NAME_TBD, 4), /* [3] */
3546 BTF_TYPE_FLOAT_ENC(NAME_TBD, 8), /* [4] */
3547 BTF_TYPE_FLOAT_ENC(NAME_TBD, 12), /* [5] */
3548 BTF_TYPE_FLOAT_ENC(NAME_TBD, 16), /* [6] */
3549 BTF_STRUCT_ENC(NAME_TBD, 5, 48), /* [7] */
3550 BTF_MEMBER_ENC(NAME_TBD, 2, 0),
3551 BTF_MEMBER_ENC(NAME_TBD, 3, 32),
3552 BTF_MEMBER_ENC(NAME_TBD, 4, 64),
3553 BTF_MEMBER_ENC(NAME_TBD, 5, 128),
3554 BTF_MEMBER_ENC(NAME_TBD, 6, 256),
3555 BTF_END_RAW,
3556 },
3557 BTF_STR_SEC("\0int\0_Float16\0float\0double\0_Float80\0long_double"
3558 "\0floats\0a\0b\0c\0d\0e"),
3559 .map_type = BPF_MAP_TYPE_ARRAY,
3560 .map_name = "float_type_check_btf",
3561 .key_size = sizeof(int),
3562 .value_size = 48,
3563 .key_type_id = 1,
3564 .value_type_id = 7,
3565 .max_entries = 1,
3566 },
3567 {
3568 .descr = "float test #2, invalid vlen",
3569 .raw_types = {
3570 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
3571 /* [1] */
3572 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FLOAT, 0, 1), 4),
3573 /* [2] */
3574 BTF_END_RAW,
3575 },
3576 BTF_STR_SEC("\0int\0float"),
3577 .map_type = BPF_MAP_TYPE_ARRAY,
3578 .map_name = "float_type_check_btf",
3579 .key_size = sizeof(int),
3580 .value_size = 4,
3581 .key_type_id = 1,
3582 .value_type_id = 2,
3583 .max_entries = 1,
3584 .btf_load_err = true,
3585 .err_str = "vlen != 0",
3586 },
3587 {
3588 .descr = "float test #3, invalid kind_flag",
3589 .raw_types = {
3590 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
3591 /* [1] */
3592 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FLOAT, 1, 0), 4),
3593 /* [2] */
3594 BTF_END_RAW,
3595 },
3596 BTF_STR_SEC("\0int\0float"),
3597 .map_type = BPF_MAP_TYPE_ARRAY,
3598 .map_name = "float_type_check_btf",
3599 .key_size = sizeof(int),
3600 .value_size = 4,
3601 .key_type_id = 1,
3602 .value_type_id = 2,
3603 .max_entries = 1,
3604 .btf_load_err = true,
3605 .err_str = "Invalid btf_info kind_flag",
3606 },
3607 {
3608 .descr = "float test #4, member does not fit",
3609 .raw_types = {
3610 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
3611 /* [1] */
3612 BTF_TYPE_FLOAT_ENC(NAME_TBD, 4), /* [2] */
3613 BTF_STRUCT_ENC(NAME_TBD, 1, 2), /* [3] */
3614 BTF_MEMBER_ENC(NAME_TBD, 2, 0),
3615 BTF_END_RAW,
3616 },
3617 BTF_STR_SEC("\0int\0float\0floats\0x"),
3618 .map_type = BPF_MAP_TYPE_ARRAY,
3619 .map_name = "float_type_check_btf",
3620 .key_size = sizeof(int),
3621 .value_size = 4,
3622 .key_type_id = 1,
3623 .value_type_id = 3,
3624 .max_entries = 1,
3625 .btf_load_err = true,
3626 .err_str = "Member exceeds struct_size",
3627 },
3628 {
3629 .descr = "float test #5, member is not properly aligned",
3630 .raw_types = {
3631 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
3632 /* [1] */
3633 BTF_TYPE_FLOAT_ENC(NAME_TBD, 4), /* [2] */
3634 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [3] */
3635 BTF_MEMBER_ENC(NAME_TBD, 2, 8),
3636 BTF_END_RAW,
3637 },
3638 BTF_STR_SEC("\0int\0float\0floats\0x"),
3639 .map_type = BPF_MAP_TYPE_ARRAY,
3640 .map_name = "float_type_check_btf",
3641 .key_size = sizeof(int),
3642 .value_size = 4,
3643 .key_type_id = 1,
3644 .value_type_id = 3,
3645 .max_entries = 1,
3646 .btf_load_err = true,
3647 .err_str = "Member is not properly aligned",
3648 },
3649 {
3650 .descr = "float test #6, invalid size",
3651 .raw_types = {
3652 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
3653 /* [1] */
3654 BTF_TYPE_FLOAT_ENC(NAME_TBD, 6), /* [2] */
3655 BTF_END_RAW,
3656 },
3657 BTF_STR_SEC("\0int\0float"),
3658 .map_type = BPF_MAP_TYPE_ARRAY,
3659 .map_name = "float_type_check_btf",
3660 .key_size = sizeof(int),
3661 .value_size = 6,
3662 .key_type_id = 1,
3663 .value_type_id = 2,
3664 .max_entries = 1,
3665 .btf_load_err = true,
3666 .err_str = "Invalid type_size",
3667 },
3668
3669 {
3670 .descr = "decl_tag test #1, struct/member, well-formed",
3671 .raw_types = {
3672 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3673 BTF_STRUCT_ENC(0, 2, 8), /* [2] */
3674 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
3675 BTF_MEMBER_ENC(NAME_TBD, 1, 32),
3676 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),
3677 BTF_DECL_TAG_ENC(NAME_TBD, 2, 0),
3678 BTF_DECL_TAG_ENC(NAME_TBD, 2, 1),
3679 BTF_END_RAW,
3680 },
3681 BTF_STR_SEC("\0m1\0m2\0tag1\0tag2\0tag3"),
3682 .map_type = BPF_MAP_TYPE_ARRAY,
3683 .map_name = "tag_type_check_btf",
3684 .key_size = sizeof(int),
3685 .value_size = 8,
3686 .key_type_id = 1,
3687 .value_type_id = 2,
3688 .max_entries = 1,
3689 },
3690 {
3691 .descr = "decl_tag test #2, union/member, well-formed",
3692 .raw_types = {
3693 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3694 BTF_UNION_ENC(NAME_TBD, 2, 4), /* [2] */
3695 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
3696 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
3697 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),
3698 BTF_DECL_TAG_ENC(NAME_TBD, 2, 0),
3699 BTF_DECL_TAG_ENC(NAME_TBD, 2, 1),
3700 BTF_END_RAW,
3701 },
3702 BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"),
3703 .map_type = BPF_MAP_TYPE_ARRAY,
3704 .map_name = "tag_type_check_btf",
3705 .key_size = sizeof(int),
3706 .value_size = 4,
3707 .key_type_id = 1,
3708 .value_type_id = 2,
3709 .max_entries = 1,
3710 },
3711 {
3712 .descr = "decl_tag test #3, variable, well-formed",
3713 .raw_types = {
3714 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3715 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
3716 BTF_VAR_ENC(NAME_TBD, 1, 1), /* [3] */
3717 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),
3718 BTF_DECL_TAG_ENC(NAME_TBD, 3, -1),
3719 BTF_END_RAW,
3720 },
3721 BTF_STR_SEC("\0local\0global\0tag1\0tag2"),
3722 .map_type = BPF_MAP_TYPE_ARRAY,
3723 .map_name = "tag_type_check_btf",
3724 .key_size = sizeof(int),
3725 .value_size = 4,
3726 .key_type_id = 1,
3727 .value_type_id = 1,
3728 .max_entries = 1,
3729 },
3730 {
3731 .descr = "decl_tag test #4, func/parameter, well-formed",
3732 .raw_types = {
3733 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3734 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */
3735 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
3736 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
3737 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
3738 BTF_DECL_TAG_ENC(NAME_TBD, 3, -1),
3739 BTF_DECL_TAG_ENC(NAME_TBD, 3, 0),
3740 BTF_DECL_TAG_ENC(NAME_TBD, 3, 1),
3741 BTF_END_RAW,
3742 },
3743 BTF_STR_SEC("\0arg1\0arg2\0f\0tag1\0tag2\0tag3"),
3744 .map_type = BPF_MAP_TYPE_ARRAY,
3745 .map_name = "tag_type_check_btf",
3746 .key_size = sizeof(int),
3747 .value_size = 4,
3748 .key_type_id = 1,
3749 .value_type_id = 1,
3750 .max_entries = 1,
3751 },
3752 {
3753 .descr = "decl_tag test #5, invalid value",
3754 .raw_types = {
3755 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3756 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
3757 BTF_DECL_TAG_ENC(0, 2, -1),
3758 BTF_END_RAW,
3759 },
3760 BTF_STR_SEC("\0local\0tag"),
3761 .map_type = BPF_MAP_TYPE_ARRAY,
3762 .map_name = "tag_type_check_btf",
3763 .key_size = sizeof(int),
3764 .value_size = 4,
3765 .key_type_id = 1,
3766 .value_type_id = 1,
3767 .max_entries = 1,
3768 .btf_load_err = true,
3769 .err_str = "Invalid value",
3770 },
3771 {
3772 .descr = "decl_tag test #6, invalid target type",
3773 .raw_types = {
3774 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3775 BTF_DECL_TAG_ENC(NAME_TBD, 1, -1),
3776 BTF_END_RAW,
3777 },
3778 BTF_STR_SEC("\0tag1"),
3779 .map_type = BPF_MAP_TYPE_ARRAY,
3780 .map_name = "tag_type_check_btf",
3781 .key_size = sizeof(int),
3782 .value_size = 4,
3783 .key_type_id = 1,
3784 .value_type_id = 1,
3785 .max_entries = 1,
3786 .btf_load_err = true,
3787 .err_str = "Invalid type",
3788 },
3789 {
3790 .descr = "decl_tag test #7, invalid vlen",
3791 .raw_types = {
3792 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3793 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
3794 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 1), 2), (0),
3795 BTF_END_RAW,
3796 },
3797 BTF_STR_SEC("\0local\0tag1"),
3798 .map_type = BPF_MAP_TYPE_ARRAY,
3799 .map_name = "tag_type_check_btf",
3800 .key_size = sizeof(int),
3801 .value_size = 4,
3802 .key_type_id = 1,
3803 .value_type_id = 1,
3804 .max_entries = 1,
3805 .btf_load_err = true,
3806 .err_str = "vlen != 0",
3807 },
3808 {
3809 .descr = "decl_tag test #8, invalid kflag",
3810 .raw_types = {
3811 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3812 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
3813 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 1, 0), 2), (-1),
3814 BTF_END_RAW,
3815 },
3816 BTF_STR_SEC("\0local\0tag1"),
3817 .map_type = BPF_MAP_TYPE_ARRAY,
3818 .map_name = "tag_type_check_btf",
3819 .key_size = sizeof(int),
3820 .value_size = 4,
3821 .key_type_id = 1,
3822 .value_type_id = 1,
3823 .max_entries = 1,
3824 .btf_load_err = true,
3825 .err_str = "Invalid btf_info kind_flag",
3826 },
3827 {
3828 .descr = "decl_tag test #9, var, invalid component_idx",
3829 .raw_types = {
3830 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3831 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
3832 BTF_DECL_TAG_ENC(NAME_TBD, 2, 0),
3833 BTF_END_RAW,
3834 },
3835 BTF_STR_SEC("\0local\0tag"),
3836 .map_type = BPF_MAP_TYPE_ARRAY,
3837 .map_name = "tag_type_check_btf",
3838 .key_size = sizeof(int),
3839 .value_size = 4,
3840 .key_type_id = 1,
3841 .value_type_id = 1,
3842 .max_entries = 1,
3843 .btf_load_err = true,
3844 .err_str = "Invalid component_idx",
3845 },
3846 {
3847 .descr = "decl_tag test #10, struct member, invalid component_idx",
3848 .raw_types = {
3849 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3850 BTF_STRUCT_ENC(0, 2, 8), /* [2] */
3851 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
3852 BTF_MEMBER_ENC(NAME_TBD, 1, 32),
3853 BTF_DECL_TAG_ENC(NAME_TBD, 2, 2),
3854 BTF_END_RAW,
3855 },
3856 BTF_STR_SEC("\0m1\0m2\0tag"),
3857 .map_type = BPF_MAP_TYPE_ARRAY,
3858 .map_name = "tag_type_check_btf",
3859 .key_size = sizeof(int),
3860 .value_size = 8,
3861 .key_type_id = 1,
3862 .value_type_id = 2,
3863 .max_entries = 1,
3864 .btf_load_err = true,
3865 .err_str = "Invalid component_idx",
3866 },
3867 {
3868 .descr = "decl_tag test #11, func parameter, invalid component_idx",
3869 .raw_types = {
3870 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3871 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */
3872 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
3873 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
3874 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
3875 BTF_DECL_TAG_ENC(NAME_TBD, 3, 2),
3876 BTF_END_RAW,
3877 },
3878 BTF_STR_SEC("\0arg1\0arg2\0f\0tag"),
3879 .map_type = BPF_MAP_TYPE_ARRAY,
3880 .map_name = "tag_type_check_btf",
3881 .key_size = sizeof(int),
3882 .value_size = 4,
3883 .key_type_id = 1,
3884 .value_type_id = 1,
3885 .max_entries = 1,
3886 .btf_load_err = true,
3887 .err_str = "Invalid component_idx",
3888 },
3889 {
3890 .descr = "decl_tag test #12, < -1 component_idx",
3891 .raw_types = {
3892 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3893 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */
3894 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
3895 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
3896 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
3897 BTF_DECL_TAG_ENC(NAME_TBD, 3, -2),
3898 BTF_END_RAW,
3899 },
3900 BTF_STR_SEC("\0arg1\0arg2\0f\0tag"),
3901 .map_type = BPF_MAP_TYPE_ARRAY,
3902 .map_name = "tag_type_check_btf",
3903 .key_size = sizeof(int),
3904 .value_size = 4,
3905 .key_type_id = 1,
3906 .value_type_id = 1,
3907 .max_entries = 1,
3908 .btf_load_err = true,
3909 .err_str = "Invalid component_idx",
3910 },
3911 {
3912 .descr = "decl_tag test #13, typedef, well-formed",
3913 .raw_types = {
3914 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3915 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */
3916 BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),
3917 BTF_END_RAW,
3918 },
3919 BTF_STR_SEC("\0t\0tag"),
3920 .map_type = BPF_MAP_TYPE_ARRAY,
3921 .map_name = "tag_type_check_btf",
3922 .key_size = sizeof(int),
3923 .value_size = 4,
3924 .key_type_id = 1,
3925 .value_type_id = 1,
3926 .max_entries = 1,
3927 },
3928 {
3929 .descr = "decl_tag test #14, typedef, invalid component_idx",
3930 .raw_types = {
3931 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3932 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */
3933 BTF_DECL_TAG_ENC(NAME_TBD, 2, 0),
3934 BTF_END_RAW,
3935 },
3936 BTF_STR_SEC("\0local\0tag"),
3937 .map_type = BPF_MAP_TYPE_ARRAY,
3938 .map_name = "tag_type_check_btf",
3939 .key_size = sizeof(int),
3940 .value_size = 4,
3941 .key_type_id = 1,
3942 .value_type_id = 1,
3943 .max_entries = 1,
3944 .btf_load_err = true,
3945 .err_str = "Invalid component_idx",
3946 },
3947 {
3948 .descr = "decl_tag test #15, func, invalid func proto",
3949 .raw_types = {
3950 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3951 BTF_DECL_TAG_ENC(NAME_TBD, 3, 0), /* [2] */
3952 BTF_FUNC_ENC(NAME_TBD, 8), /* [3] */
3953 BTF_END_RAW,
3954 },
3955 BTF_STR_SEC("\0tag\0func"),
3956 .map_type = BPF_MAP_TYPE_ARRAY,
3957 .map_name = "tag_type_check_btf",
3958 .key_size = sizeof(int),
3959 .value_size = 4,
3960 .key_type_id = 1,
3961 .value_type_id = 1,
3962 .max_entries = 1,
3963 .btf_load_err = true,
3964 .err_str = "Invalid type_id",
3965 },
3966 {
3967 .descr = "decl_tag test #16, func proto, return type",
3968 .raw_types = {
3969 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3970 BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
3971 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 0), 2), (-1), /* [3] */
3972 BTF_FUNC_PROTO_ENC(3, 0), /* [4] */
3973 BTF_END_RAW,
3974 },
3975 BTF_STR_SEC("\0local\0tag1"),
3976 .btf_load_err = true,
3977 .err_str = "Invalid return type",
3978 },
3979 {
3980 .descr = "type_tag test #1",
3981 .raw_types = {
3982 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
3983 BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [2] */
3984 BTF_PTR_ENC(2), /* [3] */
3985 BTF_END_RAW,
3986 },
3987 BTF_STR_SEC("\0tag"),
3988 .map_type = BPF_MAP_TYPE_ARRAY,
3989 .map_name = "tag_type_check_btf",
3990 .key_size = sizeof(int),
3991 .value_size = 4,
3992 .key_type_id = 1,
3993 .value_type_id = 1,
3994 .max_entries = 1,
3995 },
3996 {
3997 .descr = "type_tag test #2, type tag order",
3998 .raw_types = {
3999 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
4000 BTF_CONST_ENC(3), /* [2] */
4001 BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [3] */
4002 BTF_END_RAW,
4003 },
4004 BTF_STR_SEC("\0tag"),
4005 .map_type = BPF_MAP_TYPE_ARRAY,
4006 .map_name = "tag_type_check_btf",
4007 .key_size = sizeof(int),
4008 .value_size = 4,
4009 .key_type_id = 1,
4010 .value_type_id = 1,
4011 .max_entries = 1,
4012 .btf_load_err = true,
4013 .err_str = "Type tags don't precede modifiers",
4014 },
4015 {
4016 .descr = "type_tag test #3, type tag order",
4017 .raw_types = {
4018 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
4019 BTF_TYPE_TAG_ENC(NAME_TBD, 3), /* [2] */
4020 BTF_CONST_ENC(4), /* [3] */
4021 BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [4] */
4022 BTF_END_RAW,
4023 },
4024 BTF_STR_SEC("\0tag\0tag"),
4025 .map_type = BPF_MAP_TYPE_ARRAY,
4026 .map_name = "tag_type_check_btf",
4027 .key_size = sizeof(int),
4028 .value_size = 4,
4029 .key_type_id = 1,
4030 .value_type_id = 1,
4031 .max_entries = 1,
4032 .btf_load_err = true,
4033 .err_str = "Type tags don't precede modifiers",
4034 },
4035 {
4036 .descr = "type_tag test #4, type tag order",
4037 .raw_types = {
4038 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
4039 BTF_TYPEDEF_ENC(NAME_TBD, 3), /* [2] */
4040 BTF_CONST_ENC(4), /* [3] */
4041 BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [4] */
4042 BTF_END_RAW,
4043 },
4044 BTF_STR_SEC("\0tag\0tag"),
4045 .map_type = BPF_MAP_TYPE_ARRAY,
4046 .map_name = "tag_type_check_btf",
4047 .key_size = sizeof(int),
4048 .value_size = 4,
4049 .key_type_id = 1,
4050 .value_type_id = 1,
4051 .max_entries = 1,
4052 .btf_load_err = true,
4053 .err_str = "Type tags don't precede modifiers",
4054 },
4055 {
4056 .descr = "type_tag test #5, type tag order",
4057 .raw_types = {
4058 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
4059 BTF_TYPE_TAG_ENC(NAME_TBD, 3), /* [2] */
4060 BTF_CONST_ENC(1), /* [3] */
4061 BTF_TYPE_TAG_ENC(NAME_TBD, 2), /* [4] */
4062 BTF_END_RAW,
4063 },
4064 BTF_STR_SEC("\0tag\0tag"),
4065 .map_type = BPF_MAP_TYPE_ARRAY,
4066 .map_name = "tag_type_check_btf",
4067 .key_size = sizeof(int),
4068 .value_size = 4,
4069 .key_type_id = 1,
4070 .value_type_id = 1,
4071 .max_entries = 1,
4072 },
4073 {
4074 .descr = "type_tag test #6, type tag order",
4075 .raw_types = {
4076 BTF_PTR_ENC(2), /* [1] */
4077 BTF_TYPE_TAG_ENC(NAME_TBD, 3), /* [2] */
4078 BTF_CONST_ENC(4), /* [3] */
4079 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [4] */
4080 BTF_PTR_ENC(6), /* [5] */
4081 BTF_CONST_ENC(2), /* [6] */
4082 BTF_END_RAW,
4083 },
4084 BTF_STR_SEC("\0tag"),
4085 .map_type = BPF_MAP_TYPE_ARRAY,
4086 .map_name = "tag_type_check_btf",
4087 .key_size = sizeof(int),
4088 .value_size = 4,
4089 .key_type_id = 1,
4090 .value_type_id = 1,
4091 .max_entries = 1,
4092 .btf_load_err = true,
4093 .err_str = "Type tags don't precede modifiers",
4094 },
4095 {
4096 .descr = "enum64 test #1, unsigned, size 8",
4097 .raw_types = {
4098 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
4099 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8), /* [2] */
4100 BTF_ENUM64_ENC(NAME_TBD, 0, 0),
4101 BTF_ENUM64_ENC(NAME_TBD, 1, 1),
4102 BTF_END_RAW,
4103 },
4104 BTF_STR_SEC("\0a\0b\0c"),
4105 .map_type = BPF_MAP_TYPE_ARRAY,
4106 .map_name = "tag_type_check_btf",
4107 .key_size = sizeof(int),
4108 .value_size = 8,
4109 .key_type_id = 1,
4110 .value_type_id = 2,
4111 .max_entries = 1,
4112 },
4113 {
4114 .descr = "enum64 test #2, signed, size 4",
4115 .raw_types = {
4116 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
4117 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 1, 2), 4), /* [2] */
4118 BTF_ENUM64_ENC(NAME_TBD, -1, 0),
4119 BTF_ENUM64_ENC(NAME_TBD, 1, 0),
4120 BTF_END_RAW,
4121 },
4122 BTF_STR_SEC("\0a\0b\0c"),
4123 .map_type = BPF_MAP_TYPE_ARRAY,
4124 .map_name = "tag_type_check_btf",
4125 .key_size = sizeof(int),
4126 .value_size = 4,
4127 .key_type_id = 1,
4128 .value_type_id = 2,
4129 .max_entries = 1,
4130 },
4131
4132 }; /* struct btf_raw_test raw_tests[] */
4133
get_next_str(const char * start,const char * end)4134 static const char *get_next_str(const char *start, const char *end)
4135 {
4136 return start < end - 1 ? start + 1 : NULL;
4137 }
4138
get_raw_sec_size(const __u32 * raw_types)4139 static int get_raw_sec_size(const __u32 *raw_types)
4140 {
4141 int i;
4142
4143 for (i = MAX_NR_RAW_U32 - 1;
4144 i >= 0 && raw_types[i] != BTF_END_RAW;
4145 i--)
4146 ;
4147
4148 return i < 0 ? i : i * sizeof(raw_types[0]);
4149 }
4150
btf_raw_create(const struct btf_header * hdr,const __u32 * raw_types,const char * str,unsigned int str_sec_size,unsigned int * btf_size,const char ** ret_next_str)4151 static void *btf_raw_create(const struct btf_header *hdr,
4152 const __u32 *raw_types,
4153 const char *str,
4154 unsigned int str_sec_size,
4155 unsigned int *btf_size,
4156 const char **ret_next_str)
4157 {
4158 const char *next_str = str, *end_str = str + str_sec_size;
4159 const char **strs_idx = NULL, **tmp_strs_idx;
4160 int strs_cap = 0, strs_cnt = 0, next_str_idx = 0;
4161 unsigned int size_needed, offset;
4162 struct btf_header *ret_hdr;
4163 int i, type_sec_size, err = 0;
4164 uint32_t *ret_types;
4165 void *raw_btf = NULL;
4166
4167 type_sec_size = get_raw_sec_size(raw_types);
4168 if (CHECK(type_sec_size < 0, "Cannot get nr_raw_types"))
4169 return NULL;
4170
4171 size_needed = sizeof(*hdr) + type_sec_size + str_sec_size;
4172 raw_btf = malloc(size_needed);
4173 if (CHECK(!raw_btf, "Cannot allocate memory for raw_btf"))
4174 return NULL;
4175
4176 /* Copy header */
4177 memcpy(raw_btf, hdr, sizeof(*hdr));
4178 offset = sizeof(*hdr);
4179
4180 /* Index strings */
4181 while ((next_str = get_next_str(next_str, end_str))) {
4182 if (strs_cnt == strs_cap) {
4183 strs_cap += max(16, strs_cap / 2);
4184 tmp_strs_idx = realloc(strs_idx,
4185 sizeof(*strs_idx) * strs_cap);
4186 if (CHECK(!tmp_strs_idx,
4187 "Cannot allocate memory for strs_idx")) {
4188 err = -1;
4189 goto done;
4190 }
4191 strs_idx = tmp_strs_idx;
4192 }
4193 strs_idx[strs_cnt++] = next_str;
4194 next_str += strlen(next_str);
4195 }
4196
4197 /* Copy type section */
4198 ret_types = raw_btf + offset;
4199 for (i = 0; i < type_sec_size / sizeof(raw_types[0]); i++) {
4200 if (raw_types[i] == NAME_TBD) {
4201 if (CHECK(next_str_idx == strs_cnt,
4202 "Error in getting next_str #%d",
4203 next_str_idx)) {
4204 err = -1;
4205 goto done;
4206 }
4207 ret_types[i] = strs_idx[next_str_idx++] - str;
4208 } else if (IS_NAME_NTH(raw_types[i])) {
4209 int idx = GET_NAME_NTH_IDX(raw_types[i]);
4210
4211 if (CHECK(idx <= 0 || idx > strs_cnt,
4212 "Error getting string #%d, strs_cnt:%d",
4213 idx, strs_cnt)) {
4214 err = -1;
4215 goto done;
4216 }
4217 ret_types[i] = strs_idx[idx-1] - str;
4218 } else {
4219 ret_types[i] = raw_types[i];
4220 }
4221 }
4222 offset += type_sec_size;
4223
4224 /* Copy string section */
4225 memcpy(raw_btf + offset, str, str_sec_size);
4226
4227 ret_hdr = (struct btf_header *)raw_btf;
4228 ret_hdr->type_len = type_sec_size;
4229 ret_hdr->str_off = type_sec_size;
4230 ret_hdr->str_len = str_sec_size;
4231
4232 *btf_size = size_needed;
4233 if (ret_next_str)
4234 *ret_next_str =
4235 next_str_idx < strs_cnt ? strs_idx[next_str_idx] : NULL;
4236
4237 done:
4238 free(strs_idx);
4239 if (err) {
4240 free(raw_btf);
4241 return NULL;
4242 }
4243 return raw_btf;
4244 }
4245
load_raw_btf(const void * raw_data,size_t raw_size)4246 static int load_raw_btf(const void *raw_data, size_t raw_size)
4247 {
4248 LIBBPF_OPTS(bpf_btf_load_opts, opts);
4249 int btf_fd;
4250
4251 if (always_log) {
4252 opts.log_buf = btf_log_buf,
4253 opts.log_size = BTF_LOG_BUF_SIZE,
4254 opts.log_level = 1;
4255 }
4256
4257 btf_fd = bpf_btf_load(raw_data, raw_size, &opts);
4258 if (btf_fd < 0 && !always_log) {
4259 opts.log_buf = btf_log_buf,
4260 opts.log_size = BTF_LOG_BUF_SIZE,
4261 opts.log_level = 1;
4262 btf_fd = bpf_btf_load(raw_data, raw_size, &opts);
4263 }
4264
4265 return btf_fd;
4266 }
4267
do_test_raw(unsigned int test_num)4268 static void do_test_raw(unsigned int test_num)
4269 {
4270 struct btf_raw_test *test = &raw_tests[test_num - 1];
4271 LIBBPF_OPTS(bpf_map_create_opts, opts);
4272 int map_fd = -1, btf_fd = -1;
4273 unsigned int raw_btf_size;
4274 struct btf_header *hdr;
4275 void *raw_btf;
4276 int err;
4277
4278 if (!test__start_subtest(test->descr))
4279 return;
4280
4281 raw_btf = btf_raw_create(&hdr_tmpl,
4282 test->raw_types,
4283 test->str_sec,
4284 test->str_sec_size,
4285 &raw_btf_size, NULL);
4286 if (!raw_btf)
4287 return;
4288
4289 hdr = raw_btf;
4290
4291 hdr->hdr_len = (int)hdr->hdr_len + test->hdr_len_delta;
4292 hdr->type_off = (int)hdr->type_off + test->type_off_delta;
4293 hdr->str_off = (int)hdr->str_off + test->str_off_delta;
4294 hdr->str_len = (int)hdr->str_len + test->str_len_delta;
4295
4296 *btf_log_buf = '\0';
4297 btf_fd = load_raw_btf(raw_btf, raw_btf_size);
4298 free(raw_btf);
4299
4300 err = ((btf_fd < 0) != test->btf_load_err);
4301 if (CHECK(err, "btf_fd:%d test->btf_load_err:%u",
4302 btf_fd, test->btf_load_err) ||
4303 CHECK(test->err_str && !strstr(btf_log_buf, test->err_str),
4304 "expected err_str:%s\n", test->err_str)) {
4305 err = -1;
4306 goto done;
4307 }
4308
4309 if (err || btf_fd < 0)
4310 goto done;
4311
4312 opts.btf_fd = btf_fd;
4313 opts.btf_key_type_id = test->key_type_id;
4314 opts.btf_value_type_id = test->value_type_id;
4315 map_fd = bpf_map_create(test->map_type, test->map_name,
4316 test->key_size, test->value_size, test->max_entries, &opts);
4317
4318 err = ((map_fd < 0) != test->map_create_err);
4319 CHECK(err, "map_fd:%d test->map_create_err:%u",
4320 map_fd, test->map_create_err);
4321
4322 done:
4323 if (*btf_log_buf && (err || always_log))
4324 fprintf(stderr, "\n%s", btf_log_buf);
4325 if (btf_fd >= 0)
4326 close(btf_fd);
4327 if (map_fd >= 0)
4328 close(map_fd);
4329 }
4330
4331 struct btf_get_info_test {
4332 const char *descr;
4333 const char *str_sec;
4334 __u32 raw_types[MAX_NR_RAW_U32];
4335 __u32 str_sec_size;
4336 int btf_size_delta;
4337 int (*special_test)(unsigned int test_num);
4338 };
4339
4340 static int test_big_btf_info(unsigned int test_num);
4341 static int test_btf_id(unsigned int test_num);
4342
4343 const struct btf_get_info_test get_info_tests[] = {
4344 {
4345 .descr = "== raw_btf_size+1",
4346 .raw_types = {
4347 /* int */ /* [1] */
4348 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
4349 BTF_END_RAW,
4350 },
4351 .str_sec = "",
4352 .str_sec_size = sizeof(""),
4353 .btf_size_delta = 1,
4354 },
4355 {
4356 .descr = "== raw_btf_size-3",
4357 .raw_types = {
4358 /* int */ /* [1] */
4359 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
4360 BTF_END_RAW,
4361 },
4362 .str_sec = "",
4363 .str_sec_size = sizeof(""),
4364 .btf_size_delta = -3,
4365 },
4366 {
4367 .descr = "Large bpf_btf_info",
4368 .raw_types = {
4369 /* int */ /* [1] */
4370 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
4371 BTF_END_RAW,
4372 },
4373 .str_sec = "",
4374 .str_sec_size = sizeof(""),
4375 .special_test = test_big_btf_info,
4376 },
4377 {
4378 .descr = "BTF ID",
4379 .raw_types = {
4380 /* int */ /* [1] */
4381 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
4382 /* unsigned int */ /* [2] */
4383 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),
4384 BTF_END_RAW,
4385 },
4386 .str_sec = "",
4387 .str_sec_size = sizeof(""),
4388 .special_test = test_btf_id,
4389 },
4390 };
4391
test_big_btf_info(unsigned int test_num)4392 static int test_big_btf_info(unsigned int test_num)
4393 {
4394 const struct btf_get_info_test *test = &get_info_tests[test_num - 1];
4395 uint8_t *raw_btf = NULL, *user_btf = NULL;
4396 unsigned int raw_btf_size;
4397 struct {
4398 struct bpf_btf_info info;
4399 uint64_t garbage;
4400 } info_garbage;
4401 struct bpf_btf_info *info;
4402 int btf_fd = -1, err;
4403 uint32_t info_len;
4404
4405 raw_btf = btf_raw_create(&hdr_tmpl,
4406 test->raw_types,
4407 test->str_sec,
4408 test->str_sec_size,
4409 &raw_btf_size, NULL);
4410
4411 if (!raw_btf)
4412 return -1;
4413
4414 *btf_log_buf = '\0';
4415
4416 user_btf = malloc(raw_btf_size);
4417 if (CHECK(!user_btf, "!user_btf")) {
4418 err = -1;
4419 goto done;
4420 }
4421
4422 btf_fd = load_raw_btf(raw_btf, raw_btf_size);
4423 if (CHECK(btf_fd < 0, "errno:%d", errno)) {
4424 err = -1;
4425 goto done;
4426 }
4427
4428 /*
4429 * GET_INFO should error out if the userspace info
4430 * has non zero tailing bytes.
4431 */
4432 info = &info_garbage.info;
4433 memset(info, 0, sizeof(*info));
4434 info_garbage.garbage = 0xdeadbeef;
4435 info_len = sizeof(info_garbage);
4436 info->btf = ptr_to_u64(user_btf);
4437 info->btf_size = raw_btf_size;
4438
4439 err = bpf_obj_get_info_by_fd(btf_fd, info, &info_len);
4440 if (CHECK(!err, "!err")) {
4441 err = -1;
4442 goto done;
4443 }
4444
4445 /*
4446 * GET_INFO should succeed even info_len is larger than
4447 * the kernel supported as long as tailing bytes are zero.
4448 * The kernel supported info len should also be returned
4449 * to userspace.
4450 */
4451 info_garbage.garbage = 0;
4452 err = bpf_obj_get_info_by_fd(btf_fd, info, &info_len);
4453 if (CHECK(err || info_len != sizeof(*info),
4454 "err:%d errno:%d info_len:%u sizeof(*info):%zu",
4455 err, errno, info_len, sizeof(*info))) {
4456 err = -1;
4457 goto done;
4458 }
4459
4460 fprintf(stderr, "OK");
4461
4462 done:
4463 if (*btf_log_buf && (err || always_log))
4464 fprintf(stderr, "\n%s", btf_log_buf);
4465
4466 free(raw_btf);
4467 free(user_btf);
4468
4469 if (btf_fd >= 0)
4470 close(btf_fd);
4471
4472 return err;
4473 }
4474
test_btf_id(unsigned int test_num)4475 static int test_btf_id(unsigned int test_num)
4476 {
4477 const struct btf_get_info_test *test = &get_info_tests[test_num - 1];
4478 LIBBPF_OPTS(bpf_map_create_opts, opts);
4479 uint8_t *raw_btf = NULL, *user_btf[2] = {};
4480 int btf_fd[2] = {-1, -1}, map_fd = -1;
4481 struct bpf_map_info map_info = {};
4482 struct bpf_btf_info info[2] = {};
4483 unsigned int raw_btf_size;
4484 uint32_t info_len;
4485 int err, i, ret;
4486
4487 raw_btf = btf_raw_create(&hdr_tmpl,
4488 test->raw_types,
4489 test->str_sec,
4490 test->str_sec_size,
4491 &raw_btf_size, NULL);
4492
4493 if (!raw_btf)
4494 return -1;
4495
4496 *btf_log_buf = '\0';
4497
4498 for (i = 0; i < 2; i++) {
4499 user_btf[i] = malloc(raw_btf_size);
4500 if (CHECK(!user_btf[i], "!user_btf[%d]", i)) {
4501 err = -1;
4502 goto done;
4503 }
4504 info[i].btf = ptr_to_u64(user_btf[i]);
4505 info[i].btf_size = raw_btf_size;
4506 }
4507
4508 btf_fd[0] = load_raw_btf(raw_btf, raw_btf_size);
4509 if (CHECK(btf_fd[0] < 0, "errno:%d", errno)) {
4510 err = -1;
4511 goto done;
4512 }
4513
4514 /* Test BPF_OBJ_GET_INFO_BY_ID on btf_id */
4515 info_len = sizeof(info[0]);
4516 err = bpf_obj_get_info_by_fd(btf_fd[0], &info[0], &info_len);
4517 if (CHECK(err, "errno:%d", errno)) {
4518 err = -1;
4519 goto done;
4520 }
4521
4522 btf_fd[1] = bpf_btf_get_fd_by_id(info[0].id);
4523 if (CHECK(btf_fd[1] < 0, "errno:%d", errno)) {
4524 err = -1;
4525 goto done;
4526 }
4527
4528 ret = 0;
4529 err = bpf_obj_get_info_by_fd(btf_fd[1], &info[1], &info_len);
4530 if (CHECK(err || info[0].id != info[1].id ||
4531 info[0].btf_size != info[1].btf_size ||
4532 (ret = memcmp(user_btf[0], user_btf[1], info[0].btf_size)),
4533 "err:%d errno:%d id0:%u id1:%u btf_size0:%u btf_size1:%u memcmp:%d",
4534 err, errno, info[0].id, info[1].id,
4535 info[0].btf_size, info[1].btf_size, ret)) {
4536 err = -1;
4537 goto done;
4538 }
4539
4540 /* Test btf members in struct bpf_map_info */
4541 opts.btf_fd = btf_fd[0];
4542 opts.btf_key_type_id = 1;
4543 opts.btf_value_type_id = 2;
4544 map_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "test_btf_id",
4545 sizeof(int), sizeof(int), 4, &opts);
4546 if (CHECK(map_fd < 0, "errno:%d", errno)) {
4547 err = -1;
4548 goto done;
4549 }
4550
4551 info_len = sizeof(map_info);
4552 err = bpf_obj_get_info_by_fd(map_fd, &map_info, &info_len);
4553 if (CHECK(err || map_info.btf_id != info[0].id ||
4554 map_info.btf_key_type_id != 1 || map_info.btf_value_type_id != 2,
4555 "err:%d errno:%d info.id:%u btf_id:%u btf_key_type_id:%u btf_value_type_id:%u",
4556 err, errno, info[0].id, map_info.btf_id, map_info.btf_key_type_id,
4557 map_info.btf_value_type_id)) {
4558 err = -1;
4559 goto done;
4560 }
4561
4562 for (i = 0; i < 2; i++) {
4563 close(btf_fd[i]);
4564 btf_fd[i] = -1;
4565 }
4566
4567 /* Test BTF ID is removed from the kernel */
4568 btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id);
4569 if (CHECK(btf_fd[0] < 0, "errno:%d", errno)) {
4570 err = -1;
4571 goto done;
4572 }
4573 close(btf_fd[0]);
4574 btf_fd[0] = -1;
4575
4576 /* The map holds the last ref to BTF and its btf_id */
4577 close(map_fd);
4578 map_fd = -1;
4579 btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id);
4580 if (CHECK(btf_fd[0] >= 0, "BTF lingers")) {
4581 err = -1;
4582 goto done;
4583 }
4584
4585 fprintf(stderr, "OK");
4586
4587 done:
4588 if (*btf_log_buf && (err || always_log))
4589 fprintf(stderr, "\n%s", btf_log_buf);
4590
4591 free(raw_btf);
4592 if (map_fd >= 0)
4593 close(map_fd);
4594 for (i = 0; i < 2; i++) {
4595 free(user_btf[i]);
4596 if (btf_fd[i] >= 0)
4597 close(btf_fd[i]);
4598 }
4599
4600 return err;
4601 }
4602
do_test_get_info(unsigned int test_num)4603 static void do_test_get_info(unsigned int test_num)
4604 {
4605 const struct btf_get_info_test *test = &get_info_tests[test_num - 1];
4606 unsigned int raw_btf_size, user_btf_size, expected_nbytes;
4607 uint8_t *raw_btf = NULL, *user_btf = NULL;
4608 struct bpf_btf_info info = {};
4609 int btf_fd = -1, err, ret;
4610 uint32_t info_len;
4611
4612 if (!test__start_subtest(test->descr))
4613 return;
4614
4615 if (test->special_test) {
4616 err = test->special_test(test_num);
4617 if (CHECK(err, "failed: %d\n", err))
4618 return;
4619 }
4620
4621 raw_btf = btf_raw_create(&hdr_tmpl,
4622 test->raw_types,
4623 test->str_sec,
4624 test->str_sec_size,
4625 &raw_btf_size, NULL);
4626
4627 if (!raw_btf)
4628 return;
4629
4630 *btf_log_buf = '\0';
4631
4632 user_btf = malloc(raw_btf_size);
4633 if (CHECK(!user_btf, "!user_btf")) {
4634 err = -1;
4635 goto done;
4636 }
4637
4638 btf_fd = load_raw_btf(raw_btf, raw_btf_size);
4639 if (CHECK(btf_fd <= 0, "errno:%d", errno)) {
4640 err = -1;
4641 goto done;
4642 }
4643
4644 user_btf_size = (int)raw_btf_size + test->btf_size_delta;
4645 expected_nbytes = min(raw_btf_size, user_btf_size);
4646 if (raw_btf_size > expected_nbytes)
4647 memset(user_btf + expected_nbytes, 0xff,
4648 raw_btf_size - expected_nbytes);
4649
4650 info_len = sizeof(info);
4651 info.btf = ptr_to_u64(user_btf);
4652 info.btf_size = user_btf_size;
4653
4654 ret = 0;
4655 err = bpf_obj_get_info_by_fd(btf_fd, &info, &info_len);
4656 if (CHECK(err || !info.id || info_len != sizeof(info) ||
4657 info.btf_size != raw_btf_size ||
4658 (ret = memcmp(raw_btf, user_btf, expected_nbytes)),
4659 "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",
4660 err, errno, info.id, info_len, sizeof(info),
4661 raw_btf_size, info.btf_size, expected_nbytes, ret)) {
4662 err = -1;
4663 goto done;
4664 }
4665
4666 while (expected_nbytes < raw_btf_size) {
4667 fprintf(stderr, "%u...", expected_nbytes);
4668 if (CHECK(user_btf[expected_nbytes++] != 0xff,
4669 "user_btf[%u]:%x != 0xff", expected_nbytes - 1,
4670 user_btf[expected_nbytes - 1])) {
4671 err = -1;
4672 goto done;
4673 }
4674 }
4675
4676 fprintf(stderr, "OK");
4677
4678 done:
4679 if (*btf_log_buf && (err || always_log))
4680 fprintf(stderr, "\n%s", btf_log_buf);
4681
4682 free(raw_btf);
4683 free(user_btf);
4684
4685 if (btf_fd >= 0)
4686 close(btf_fd);
4687 }
4688
4689 struct btf_file_test {
4690 const char *file;
4691 bool btf_kv_notfound;
4692 };
4693
4694 static struct btf_file_test file_tests[] = {
4695 { .file = "test_btf_newkv.bpf.o", },
4696 { .file = "test_btf_nokv.bpf.o", .btf_kv_notfound = true, },
4697 };
4698
do_test_file(unsigned int test_num)4699 static void do_test_file(unsigned int test_num)
4700 {
4701 const struct btf_file_test *test = &file_tests[test_num - 1];
4702 const char *expected_fnames[] = {"_dummy_tracepoint",
4703 "test_long_fname_1",
4704 "test_long_fname_2"};
4705 struct btf_ext *btf_ext = NULL;
4706 struct bpf_prog_info info = {};
4707 struct bpf_object *obj = NULL;
4708 struct bpf_func_info *finfo;
4709 struct bpf_program *prog;
4710 __u32 info_len, rec_size;
4711 bool has_btf_ext = false;
4712 struct btf *btf = NULL;
4713 void *func_info = NULL;
4714 struct bpf_map *map;
4715 int i, err, prog_fd;
4716
4717 if (!test__start_subtest(test->file))
4718 return;
4719
4720 btf = btf__parse_elf(test->file, &btf_ext);
4721 err = libbpf_get_error(btf);
4722 if (err) {
4723 if (err == -ENOENT) {
4724 printf("%s:SKIP: No ELF %s found", __func__, BTF_ELF_SEC);
4725 test__skip();
4726 return;
4727 }
4728 return;
4729 }
4730 btf__free(btf);
4731
4732 has_btf_ext = btf_ext != NULL;
4733 btf_ext__free(btf_ext);
4734
4735 /* temporary disable LIBBPF_STRICT_MAP_DEFINITIONS to test legacy maps */
4736 libbpf_set_strict_mode(LIBBPF_STRICT_ALL & ~LIBBPF_STRICT_MAP_DEFINITIONS);
4737 obj = bpf_object__open(test->file);
4738 err = libbpf_get_error(obj);
4739 if (CHECK(err, "obj: %d", err))
4740 return;
4741
4742 prog = bpf_object__next_program(obj, NULL);
4743 if (CHECK(!prog, "Cannot find bpf_prog")) {
4744 err = -1;
4745 goto done;
4746 }
4747
4748 bpf_program__set_type(prog, BPF_PROG_TYPE_TRACEPOINT);
4749 err = bpf_object__load(obj);
4750 if (CHECK(err < 0, "bpf_object__load: %d", err))
4751 goto done;
4752 prog_fd = bpf_program__fd(prog);
4753
4754 map = bpf_object__find_map_by_name(obj, "btf_map");
4755 if (CHECK(!map, "btf_map not found")) {
4756 err = -1;
4757 goto done;
4758 }
4759
4760 err = (bpf_map__btf_key_type_id(map) == 0 || bpf_map__btf_value_type_id(map) == 0)
4761 != test->btf_kv_notfound;
4762 if (CHECK(err, "btf_key_type_id:%u btf_value_type_id:%u test->btf_kv_notfound:%u",
4763 bpf_map__btf_key_type_id(map), bpf_map__btf_value_type_id(map),
4764 test->btf_kv_notfound))
4765 goto done;
4766
4767 if (!has_btf_ext)
4768 goto skip;
4769
4770 /* get necessary program info */
4771 info_len = sizeof(struct bpf_prog_info);
4772 err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
4773
4774 if (CHECK(err < 0, "invalid get info (1st) errno:%d", errno)) {
4775 fprintf(stderr, "%s\n", btf_log_buf);
4776 err = -1;
4777 goto done;
4778 }
4779 if (CHECK(info.nr_func_info != 3,
4780 "incorrect info.nr_func_info (1st) %d",
4781 info.nr_func_info)) {
4782 err = -1;
4783 goto done;
4784 }
4785 rec_size = info.func_info_rec_size;
4786 if (CHECK(rec_size != sizeof(struct bpf_func_info),
4787 "incorrect info.func_info_rec_size (1st) %d\n", rec_size)) {
4788 err = -1;
4789 goto done;
4790 }
4791
4792 func_info = malloc(info.nr_func_info * rec_size);
4793 if (CHECK(!func_info, "out of memory")) {
4794 err = -1;
4795 goto done;
4796 }
4797
4798 /* reset info to only retrieve func_info related data */
4799 memset(&info, 0, sizeof(info));
4800 info.nr_func_info = 3;
4801 info.func_info_rec_size = rec_size;
4802 info.func_info = ptr_to_u64(func_info);
4803
4804 err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
4805
4806 if (CHECK(err < 0, "invalid get info (2nd) errno:%d", errno)) {
4807 fprintf(stderr, "%s\n", btf_log_buf);
4808 err = -1;
4809 goto done;
4810 }
4811 if (CHECK(info.nr_func_info != 3,
4812 "incorrect info.nr_func_info (2nd) %d",
4813 info.nr_func_info)) {
4814 err = -1;
4815 goto done;
4816 }
4817 if (CHECK(info.func_info_rec_size != rec_size,
4818 "incorrect info.func_info_rec_size (2nd) %d",
4819 info.func_info_rec_size)) {
4820 err = -1;
4821 goto done;
4822 }
4823
4824 btf = btf__load_from_kernel_by_id(info.btf_id);
4825 err = libbpf_get_error(btf);
4826 if (CHECK(err, "cannot get btf from kernel, err: %d", err))
4827 goto done;
4828
4829 /* check three functions */
4830 finfo = func_info;
4831 for (i = 0; i < 3; i++) {
4832 const struct btf_type *t;
4833 const char *fname;
4834
4835 t = btf__type_by_id(btf, finfo->type_id);
4836 if (CHECK(!t, "btf__type_by_id failure: id %u",
4837 finfo->type_id)) {
4838 err = -1;
4839 goto done;
4840 }
4841
4842 fname = btf__name_by_offset(btf, t->name_off);
4843 err = strcmp(fname, expected_fnames[i]);
4844 /* for the second and third functions in .text section,
4845 * the compiler may order them either way.
4846 */
4847 if (i && err)
4848 err = strcmp(fname, expected_fnames[3 - i]);
4849 if (CHECK(err, "incorrect fname %s", fname ? : "")) {
4850 err = -1;
4851 goto done;
4852 }
4853
4854 finfo = (void *)finfo + rec_size;
4855 }
4856
4857 skip:
4858 fprintf(stderr, "OK");
4859
4860 done:
4861 libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
4862
4863 btf__free(btf);
4864 free(func_info);
4865 bpf_object__close(obj);
4866 }
4867
4868 const char *pprint_enum_str[] = {
4869 "ENUM_ZERO",
4870 "ENUM_ONE",
4871 "ENUM_TWO",
4872 "ENUM_THREE",
4873 };
4874
4875 struct pprint_mapv {
4876 uint32_t ui32;
4877 uint16_t ui16;
4878 /* 2 bytes hole */
4879 int32_t si32;
4880 uint32_t unused_bits2a:2,
4881 bits28:28,
4882 unused_bits2b:2;
4883 union {
4884 uint64_t ui64;
4885 uint8_t ui8a[8];
4886 };
4887 enum {
4888 ENUM_ZERO,
4889 ENUM_ONE,
4890 ENUM_TWO,
4891 ENUM_THREE,
4892 } aenum;
4893 uint32_t ui32b;
4894 uint32_t bits2c:2;
4895 uint8_t si8_4[2][2];
4896 };
4897
4898 #ifdef __SIZEOF_INT128__
4899 struct pprint_mapv_int128 {
4900 __int128 si128a;
4901 __int128 si128b;
4902 unsigned __int128 bits3:3;
4903 unsigned __int128 bits80:80;
4904 unsigned __int128 ui128;
4905 };
4906 #endif
4907
4908 static struct btf_raw_test pprint_test_template[] = {
4909 {
4910 .raw_types = {
4911 /* unsighed char */ /* [1] */
4912 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1),
4913 /* unsigned short */ /* [2] */
4914 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2),
4915 /* unsigned int */ /* [3] */
4916 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4),
4917 /* int */ /* [4] */
4918 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
4919 /* unsigned long long */ /* [5] */
4920 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8),
4921 /* 2 bits */ /* [6] */
4922 BTF_TYPE_INT_ENC(0, 0, 0, 2, 2),
4923 /* 28 bits */ /* [7] */
4924 BTF_TYPE_INT_ENC(0, 0, 0, 28, 4),
4925 /* uint8_t[8] */ /* [8] */
4926 BTF_TYPE_ARRAY_ENC(9, 1, 8),
4927 /* typedef unsigned char uint8_t */ /* [9] */
4928 BTF_TYPEDEF_ENC(NAME_TBD, 1),
4929 /* typedef unsigned short uint16_t */ /* [10] */
4930 BTF_TYPEDEF_ENC(NAME_TBD, 2),
4931 /* typedef unsigned int uint32_t */ /* [11] */
4932 BTF_TYPEDEF_ENC(NAME_TBD, 3),
4933 /* typedef int int32_t */ /* [12] */
4934 BTF_TYPEDEF_ENC(NAME_TBD, 4),
4935 /* typedef unsigned long long uint64_t *//* [13] */
4936 BTF_TYPEDEF_ENC(NAME_TBD, 5),
4937 /* union (anon) */ /* [14] */
4938 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8),
4939 BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */
4940 BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */
4941 /* enum (anon) */ /* [15] */
4942 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4),
4943 BTF_ENUM_ENC(NAME_TBD, 0),
4944 BTF_ENUM_ENC(NAME_TBD, 1),
4945 BTF_ENUM_ENC(NAME_TBD, 2),
4946 BTF_ENUM_ENC(NAME_TBD, 3),
4947 /* struct pprint_mapv */ /* [16] */
4948 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 11), 40),
4949 BTF_MEMBER_ENC(NAME_TBD, 11, 0), /* uint32_t ui32 */
4950 BTF_MEMBER_ENC(NAME_TBD, 10, 32), /* uint16_t ui16 */
4951 BTF_MEMBER_ENC(NAME_TBD, 12, 64), /* int32_t si32 */
4952 BTF_MEMBER_ENC(NAME_TBD, 6, 96), /* unused_bits2a */
4953 BTF_MEMBER_ENC(NAME_TBD, 7, 98), /* bits28 */
4954 BTF_MEMBER_ENC(NAME_TBD, 6, 126), /* unused_bits2b */
4955 BTF_MEMBER_ENC(0, 14, 128), /* union (anon) */
4956 BTF_MEMBER_ENC(NAME_TBD, 15, 192), /* aenum */
4957 BTF_MEMBER_ENC(NAME_TBD, 11, 224), /* uint32_t ui32b */
4958 BTF_MEMBER_ENC(NAME_TBD, 6, 256), /* bits2c */
4959 BTF_MEMBER_ENC(NAME_TBD, 17, 264), /* si8_4 */
4960 BTF_TYPE_ARRAY_ENC(18, 1, 2), /* [17] */
4961 BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [18] */
4962 BTF_END_RAW,
4963 },
4964 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"),
4965 .key_size = sizeof(unsigned int),
4966 .value_size = sizeof(struct pprint_mapv),
4967 .key_type_id = 3, /* unsigned int */
4968 .value_type_id = 16, /* struct pprint_mapv */
4969 .max_entries = 128,
4970 },
4971
4972 {
4973 /* this type will have the same type as the
4974 * first .raw_types definition, but struct type will
4975 * be encoded with kind_flag set.
4976 */
4977 .raw_types = {
4978 /* unsighed char */ /* [1] */
4979 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1),
4980 /* unsigned short */ /* [2] */
4981 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2),
4982 /* unsigned int */ /* [3] */
4983 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4),
4984 /* int */ /* [4] */
4985 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
4986 /* unsigned long long */ /* [5] */
4987 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8),
4988 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [6] */
4989 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [7] */
4990 /* uint8_t[8] */ /* [8] */
4991 BTF_TYPE_ARRAY_ENC(9, 1, 8),
4992 /* typedef unsigned char uint8_t */ /* [9] */
4993 BTF_TYPEDEF_ENC(NAME_TBD, 1),
4994 /* typedef unsigned short uint16_t */ /* [10] */
4995 BTF_TYPEDEF_ENC(NAME_TBD, 2),
4996 /* typedef unsigned int uint32_t */ /* [11] */
4997 BTF_TYPEDEF_ENC(NAME_TBD, 3),
4998 /* typedef int int32_t */ /* [12] */
4999 BTF_TYPEDEF_ENC(NAME_TBD, 4),
5000 /* typedef unsigned long long uint64_t *//* [13] */
5001 BTF_TYPEDEF_ENC(NAME_TBD, 5),
5002 /* union (anon) */ /* [14] */
5003 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8),
5004 BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */
5005 BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */
5006 /* enum (anon) */ /* [15] */
5007 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4),
5008 BTF_ENUM_ENC(NAME_TBD, 0),
5009 BTF_ENUM_ENC(NAME_TBD, 1),
5010 BTF_ENUM_ENC(NAME_TBD, 2),
5011 BTF_ENUM_ENC(NAME_TBD, 3),
5012 /* struct pprint_mapv */ /* [16] */
5013 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 11), 40),
5014 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)), /* uint32_t ui32 */
5015 BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)), /* uint16_t ui16 */
5016 BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)), /* int32_t si32 */
5017 BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 96)), /* unused_bits2a */
5018 BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)), /* bits28 */
5019 BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 126)), /* unused_bits2b */
5020 BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)), /* union (anon) */
5021 BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)), /* aenum */
5022 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)), /* uint32_t ui32b */
5023 BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 256)), /* bits2c */
5024 BTF_MEMBER_ENC(NAME_TBD, 17, 264), /* si8_4 */
5025 BTF_TYPE_ARRAY_ENC(18, 1, 2), /* [17] */
5026 BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [18] */
5027 BTF_END_RAW,
5028 },
5029 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"),
5030 .key_size = sizeof(unsigned int),
5031 .value_size = sizeof(struct pprint_mapv),
5032 .key_type_id = 3, /* unsigned int */
5033 .value_type_id = 16, /* struct pprint_mapv */
5034 .max_entries = 128,
5035 },
5036
5037 {
5038 /* this type will have the same layout as the
5039 * first .raw_types definition. The struct type will
5040 * be encoded with kind_flag set, bitfield members
5041 * are added typedef/const/volatile, and bitfield members
5042 * will have both int and enum types.
5043 */
5044 .raw_types = {
5045 /* unsighed char */ /* [1] */
5046 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1),
5047 /* unsigned short */ /* [2] */
5048 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2),
5049 /* unsigned int */ /* [3] */
5050 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4),
5051 /* int */ /* [4] */
5052 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
5053 /* unsigned long long */ /* [5] */
5054 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8),
5055 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [6] */
5056 BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [7] */
5057 /* uint8_t[8] */ /* [8] */
5058 BTF_TYPE_ARRAY_ENC(9, 1, 8),
5059 /* typedef unsigned char uint8_t */ /* [9] */
5060 BTF_TYPEDEF_ENC(NAME_TBD, 1),
5061 /* typedef unsigned short uint16_t */ /* [10] */
5062 BTF_TYPEDEF_ENC(NAME_TBD, 2),
5063 /* typedef unsigned int uint32_t */ /* [11] */
5064 BTF_TYPEDEF_ENC(NAME_TBD, 3),
5065 /* typedef int int32_t */ /* [12] */
5066 BTF_TYPEDEF_ENC(NAME_TBD, 4),
5067 /* typedef unsigned long long uint64_t *//* [13] */
5068 BTF_TYPEDEF_ENC(NAME_TBD, 5),
5069 /* union (anon) */ /* [14] */
5070 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8),
5071 BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */
5072 BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */
5073 /* enum (anon) */ /* [15] */
5074 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4),
5075 BTF_ENUM_ENC(NAME_TBD, 0),
5076 BTF_ENUM_ENC(NAME_TBD, 1),
5077 BTF_ENUM_ENC(NAME_TBD, 2),
5078 BTF_ENUM_ENC(NAME_TBD, 3),
5079 /* struct pprint_mapv */ /* [16] */
5080 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 11), 40),
5081 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)), /* uint32_t ui32 */
5082 BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)), /* uint16_t ui16 */
5083 BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)), /* int32_t si32 */
5084 BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 96)), /* unused_bits2a */
5085 BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)), /* bits28 */
5086 BTF_MEMBER_ENC(NAME_TBD, 19, BTF_MEMBER_OFFSET(2, 126)),/* unused_bits2b */
5087 BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)), /* union (anon) */
5088 BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)), /* aenum */
5089 BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)), /* uint32_t ui32b */
5090 BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 256)), /* bits2c */
5091 BTF_MEMBER_ENC(NAME_TBD, 20, BTF_MEMBER_OFFSET(0, 264)), /* si8_4 */
5092 /* typedef unsigned int ___int */ /* [17] */
5093 BTF_TYPEDEF_ENC(NAME_TBD, 18),
5094 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), 6), /* [18] */
5095 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 15), /* [19] */
5096 BTF_TYPE_ARRAY_ENC(21, 1, 2), /* [20] */
5097 BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [21] */
5098 BTF_END_RAW,
5099 },
5100 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"),
5101 .key_size = sizeof(unsigned int),
5102 .value_size = sizeof(struct pprint_mapv),
5103 .key_type_id = 3, /* unsigned int */
5104 .value_type_id = 16, /* struct pprint_mapv */
5105 .max_entries = 128,
5106 },
5107
5108 #ifdef __SIZEOF_INT128__
5109 {
5110 /* test int128 */
5111 .raw_types = {
5112 /* unsigned int */ /* [1] */
5113 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4),
5114 /* __int128 */ /* [2] */
5115 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 128, 16),
5116 /* unsigned __int128 */ /* [3] */
5117 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 128, 16),
5118 /* struct pprint_mapv_int128 */ /* [4] */
5119 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 5), 64),
5120 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), /* si128a */
5121 BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 128)), /* si128b */
5122 BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(3, 256)), /* bits3 */
5123 BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(80, 259)), /* bits80 */
5124 BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(0, 384)), /* ui128 */
5125 BTF_END_RAW,
5126 },
5127 BTF_STR_SEC("\0unsigned int\0__int128\0unsigned __int128\0pprint_mapv_int128\0si128a\0si128b\0bits3\0bits80\0ui128"),
5128 .key_size = sizeof(unsigned int),
5129 .value_size = sizeof(struct pprint_mapv_int128),
5130 .key_type_id = 1,
5131 .value_type_id = 4,
5132 .max_entries = 128,
5133 .mapv_kind = PPRINT_MAPV_KIND_INT128,
5134 },
5135 #endif
5136
5137 };
5138
5139 static struct btf_pprint_test_meta {
5140 const char *descr;
5141 enum bpf_map_type map_type;
5142 const char *map_name;
5143 bool ordered_map;
5144 bool lossless_map;
5145 bool percpu_map;
5146 } pprint_tests_meta[] = {
5147 {
5148 .descr = "BTF pretty print array",
5149 .map_type = BPF_MAP_TYPE_ARRAY,
5150 .map_name = "pprint_test_array",
5151 .ordered_map = true,
5152 .lossless_map = true,
5153 .percpu_map = false,
5154 },
5155
5156 {
5157 .descr = "BTF pretty print hash",
5158 .map_type = BPF_MAP_TYPE_HASH,
5159 .map_name = "pprint_test_hash",
5160 .ordered_map = false,
5161 .lossless_map = true,
5162 .percpu_map = false,
5163 },
5164
5165 {
5166 .descr = "BTF pretty print lru hash",
5167 .map_type = BPF_MAP_TYPE_LRU_HASH,
5168 .map_name = "pprint_test_lru_hash",
5169 .ordered_map = false,
5170 .lossless_map = false,
5171 .percpu_map = false,
5172 },
5173
5174 {
5175 .descr = "BTF pretty print percpu array",
5176 .map_type = BPF_MAP_TYPE_PERCPU_ARRAY,
5177 .map_name = "pprint_test_percpu_array",
5178 .ordered_map = true,
5179 .lossless_map = true,
5180 .percpu_map = true,
5181 },
5182
5183 {
5184 .descr = "BTF pretty print percpu hash",
5185 .map_type = BPF_MAP_TYPE_PERCPU_HASH,
5186 .map_name = "pprint_test_percpu_hash",
5187 .ordered_map = false,
5188 .lossless_map = true,
5189 .percpu_map = true,
5190 },
5191
5192 {
5193 .descr = "BTF pretty print lru percpu hash",
5194 .map_type = BPF_MAP_TYPE_LRU_PERCPU_HASH,
5195 .map_name = "pprint_test_lru_percpu_hash",
5196 .ordered_map = false,
5197 .lossless_map = false,
5198 .percpu_map = true,
5199 },
5200
5201 };
5202
get_pprint_mapv_size(enum pprint_mapv_kind_t mapv_kind)5203 static size_t get_pprint_mapv_size(enum pprint_mapv_kind_t mapv_kind)
5204 {
5205 if (mapv_kind == PPRINT_MAPV_KIND_BASIC)
5206 return sizeof(struct pprint_mapv);
5207
5208 #ifdef __SIZEOF_INT128__
5209 if (mapv_kind == PPRINT_MAPV_KIND_INT128)
5210 return sizeof(struct pprint_mapv_int128);
5211 #endif
5212
5213 assert(0);
5214 return 0;
5215 }
5216
set_pprint_mapv(enum pprint_mapv_kind_t mapv_kind,void * mapv,uint32_t i,int num_cpus,int rounded_value_size)5217 static void set_pprint_mapv(enum pprint_mapv_kind_t mapv_kind,
5218 void *mapv, uint32_t i,
5219 int num_cpus, int rounded_value_size)
5220 {
5221 int cpu;
5222
5223 if (mapv_kind == PPRINT_MAPV_KIND_BASIC) {
5224 struct pprint_mapv *v = mapv;
5225
5226 for (cpu = 0; cpu < num_cpus; cpu++) {
5227 v->ui32 = i + cpu;
5228 v->si32 = -i;
5229 v->unused_bits2a = 3;
5230 v->bits28 = i;
5231 v->unused_bits2b = 3;
5232 v->ui64 = i;
5233 v->aenum = i & 0x03;
5234 v->ui32b = 4;
5235 v->bits2c = 1;
5236 v->si8_4[0][0] = (cpu + i) & 0xff;
5237 v->si8_4[0][1] = (cpu + i + 1) & 0xff;
5238 v->si8_4[1][0] = (cpu + i + 2) & 0xff;
5239 v->si8_4[1][1] = (cpu + i + 3) & 0xff;
5240 v = (void *)v + rounded_value_size;
5241 }
5242 }
5243
5244 #ifdef __SIZEOF_INT128__
5245 if (mapv_kind == PPRINT_MAPV_KIND_INT128) {
5246 struct pprint_mapv_int128 *v = mapv;
5247
5248 for (cpu = 0; cpu < num_cpus; cpu++) {
5249 v->si128a = i;
5250 v->si128b = -i;
5251 v->bits3 = i & 0x07;
5252 v->bits80 = (((unsigned __int128)1) << 64) + i;
5253 v->ui128 = (((unsigned __int128)2) << 64) + i;
5254 v = (void *)v + rounded_value_size;
5255 }
5256 }
5257 #endif
5258 }
5259
get_pprint_expected_line(enum pprint_mapv_kind_t mapv_kind,char * expected_line,ssize_t line_size,bool percpu_map,unsigned int next_key,int cpu,void * mapv)5260 ssize_t get_pprint_expected_line(enum pprint_mapv_kind_t mapv_kind,
5261 char *expected_line, ssize_t line_size,
5262 bool percpu_map, unsigned int next_key,
5263 int cpu, void *mapv)
5264 {
5265 ssize_t nexpected_line = -1;
5266
5267 if (mapv_kind == PPRINT_MAPV_KIND_BASIC) {
5268 struct pprint_mapv *v = mapv;
5269
5270 nexpected_line = snprintf(expected_line, line_size,
5271 "%s%u: {%u,0,%d,0x%x,0x%x,0x%x,"
5272 "{%llu|[%u,%u,%u,%u,%u,%u,%u,%u]},%s,"
5273 "%u,0x%x,[[%d,%d],[%d,%d]]}\n",
5274 percpu_map ? "\tcpu" : "",
5275 percpu_map ? cpu : next_key,
5276 v->ui32, v->si32,
5277 v->unused_bits2a,
5278 v->bits28,
5279 v->unused_bits2b,
5280 (__u64)v->ui64,
5281 v->ui8a[0], v->ui8a[1],
5282 v->ui8a[2], v->ui8a[3],
5283 v->ui8a[4], v->ui8a[5],
5284 v->ui8a[6], v->ui8a[7],
5285 pprint_enum_str[v->aenum],
5286 v->ui32b,
5287 v->bits2c,
5288 v->si8_4[0][0], v->si8_4[0][1],
5289 v->si8_4[1][0], v->si8_4[1][1]);
5290 }
5291
5292 #ifdef __SIZEOF_INT128__
5293 if (mapv_kind == PPRINT_MAPV_KIND_INT128) {
5294 struct pprint_mapv_int128 *v = mapv;
5295
5296 nexpected_line = snprintf(expected_line, line_size,
5297 "%s%u: {0x%lx,0x%lx,0x%lx,"
5298 "0x%lx%016lx,0x%lx%016lx}\n",
5299 percpu_map ? "\tcpu" : "",
5300 percpu_map ? cpu : next_key,
5301 (uint64_t)v->si128a,
5302 (uint64_t)v->si128b,
5303 (uint64_t)v->bits3,
5304 (uint64_t)(v->bits80 >> 64),
5305 (uint64_t)v->bits80,
5306 (uint64_t)(v->ui128 >> 64),
5307 (uint64_t)v->ui128);
5308 }
5309 #endif
5310
5311 return nexpected_line;
5312 }
5313
check_line(const char * expected_line,int nexpected_line,int expected_line_len,const char * line)5314 static int check_line(const char *expected_line, int nexpected_line,
5315 int expected_line_len, const char *line)
5316 {
5317 if (CHECK(nexpected_line == expected_line_len,
5318 "expected_line is too long"))
5319 return -1;
5320
5321 if (strcmp(expected_line, line)) {
5322 fprintf(stderr, "unexpected pprint output\n");
5323 fprintf(stderr, "expected: %s", expected_line);
5324 fprintf(stderr, " read: %s", line);
5325 return -1;
5326 }
5327
5328 return 0;
5329 }
5330
5331
do_test_pprint(int test_num)5332 static void do_test_pprint(int test_num)
5333 {
5334 const struct btf_raw_test *test = &pprint_test_template[test_num];
5335 enum pprint_mapv_kind_t mapv_kind = test->mapv_kind;
5336 LIBBPF_OPTS(bpf_map_create_opts, opts);
5337 bool ordered_map, lossless_map, percpu_map;
5338 int err, ret, num_cpus, rounded_value_size;
5339 unsigned int key, nr_read_elems;
5340 int map_fd = -1, btf_fd = -1;
5341 unsigned int raw_btf_size;
5342 char expected_line[255];
5343 FILE *pin_file = NULL;
5344 char pin_path[255];
5345 size_t line_len = 0;
5346 char *line = NULL;
5347 void *mapv = NULL;
5348 uint8_t *raw_btf;
5349 ssize_t nread;
5350
5351 if (!test__start_subtest(test->descr))
5352 return;
5353
5354 raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types,
5355 test->str_sec, test->str_sec_size,
5356 &raw_btf_size, NULL);
5357
5358 if (!raw_btf)
5359 return;
5360
5361 *btf_log_buf = '\0';
5362 btf_fd = load_raw_btf(raw_btf, raw_btf_size);
5363 free(raw_btf);
5364
5365 if (CHECK(btf_fd < 0, "errno:%d\n", errno)) {
5366 err = -1;
5367 goto done;
5368 }
5369
5370 opts.btf_fd = btf_fd;
5371 opts.btf_key_type_id = test->key_type_id;
5372 opts.btf_value_type_id = test->value_type_id;
5373 map_fd = bpf_map_create(test->map_type, test->map_name,
5374 test->key_size, test->value_size, test->max_entries, &opts);
5375 if (CHECK(map_fd < 0, "errno:%d", errno)) {
5376 err = -1;
5377 goto done;
5378 }
5379
5380 ret = snprintf(pin_path, sizeof(pin_path), "%s/%s",
5381 "/sys/fs/bpf", test->map_name);
5382
5383 if (CHECK(ret >= sizeof(pin_path), "pin_path %s/%s is too long",
5384 "/sys/fs/bpf", test->map_name)) {
5385 err = -1;
5386 goto done;
5387 }
5388
5389 err = bpf_obj_pin(map_fd, pin_path);
5390 if (CHECK(err, "bpf_obj_pin(%s): errno:%d.", pin_path, errno))
5391 goto done;
5392
5393 percpu_map = test->percpu_map;
5394 num_cpus = percpu_map ? bpf_num_possible_cpus() : 1;
5395 rounded_value_size = round_up(get_pprint_mapv_size(mapv_kind), 8);
5396 mapv = calloc(num_cpus, rounded_value_size);
5397 if (CHECK(!mapv, "mapv allocation failure")) {
5398 err = -1;
5399 goto done;
5400 }
5401
5402 for (key = 0; key < test->max_entries; key++) {
5403 set_pprint_mapv(mapv_kind, mapv, key, num_cpus, rounded_value_size);
5404 bpf_map_update_elem(map_fd, &key, mapv, 0);
5405 }
5406
5407 pin_file = fopen(pin_path, "r");
5408 if (CHECK(!pin_file, "fopen(%s): errno:%d", pin_path, errno)) {
5409 err = -1;
5410 goto done;
5411 }
5412
5413 /* Skip lines start with '#' */
5414 while ((nread = getline(&line, &line_len, pin_file)) > 0 &&
5415 *line == '#')
5416 ;
5417
5418 if (CHECK(nread <= 0, "Unexpected EOF")) {
5419 err = -1;
5420 goto done;
5421 }
5422
5423 nr_read_elems = 0;
5424 ordered_map = test->ordered_map;
5425 lossless_map = test->lossless_map;
5426 do {
5427 ssize_t nexpected_line;
5428 unsigned int next_key;
5429 void *cmapv;
5430 int cpu;
5431
5432 next_key = ordered_map ? nr_read_elems : atoi(line);
5433 set_pprint_mapv(mapv_kind, mapv, next_key, num_cpus, rounded_value_size);
5434 cmapv = mapv;
5435
5436 for (cpu = 0; cpu < num_cpus; cpu++) {
5437 if (percpu_map) {
5438 /* for percpu map, the format looks like:
5439 * <key>: {
5440 * cpu0: <value_on_cpu0>
5441 * cpu1: <value_on_cpu1>
5442 * ...
5443 * cpun: <value_on_cpun>
5444 * }
5445 *
5446 * let us verify the line containing the key here.
5447 */
5448 if (cpu == 0) {
5449 nexpected_line = snprintf(expected_line,
5450 sizeof(expected_line),
5451 "%u: {\n",
5452 next_key);
5453
5454 err = check_line(expected_line, nexpected_line,
5455 sizeof(expected_line), line);
5456 if (err < 0)
5457 goto done;
5458 }
5459
5460 /* read value@cpu */
5461 nread = getline(&line, &line_len, pin_file);
5462 if (nread < 0)
5463 break;
5464 }
5465
5466 nexpected_line = get_pprint_expected_line(mapv_kind, expected_line,
5467 sizeof(expected_line),
5468 percpu_map, next_key,
5469 cpu, cmapv);
5470 err = check_line(expected_line, nexpected_line,
5471 sizeof(expected_line), line);
5472 if (err < 0)
5473 goto done;
5474
5475 cmapv = cmapv + rounded_value_size;
5476 }
5477
5478 if (percpu_map) {
5479 /* skip the last bracket for the percpu map */
5480 nread = getline(&line, &line_len, pin_file);
5481 if (nread < 0)
5482 break;
5483 }
5484
5485 nread = getline(&line, &line_len, pin_file);
5486 } while (++nr_read_elems < test->max_entries && nread > 0);
5487
5488 if (lossless_map &&
5489 CHECK(nr_read_elems < test->max_entries,
5490 "Unexpected EOF. nr_read_elems:%u test->max_entries:%u",
5491 nr_read_elems, test->max_entries)) {
5492 err = -1;
5493 goto done;
5494 }
5495
5496 if (CHECK(nread > 0, "Unexpected extra pprint output: %s", line)) {
5497 err = -1;
5498 goto done;
5499 }
5500
5501 err = 0;
5502
5503 done:
5504 if (mapv)
5505 free(mapv);
5506 if (!err)
5507 fprintf(stderr, "OK");
5508 if (*btf_log_buf && (err || always_log))
5509 fprintf(stderr, "\n%s", btf_log_buf);
5510 if (btf_fd >= 0)
5511 close(btf_fd);
5512 if (map_fd >= 0)
5513 close(map_fd);
5514 if (pin_file)
5515 fclose(pin_file);
5516 unlink(pin_path);
5517 free(line);
5518 }
5519
test_pprint(void)5520 static void test_pprint(void)
5521 {
5522 unsigned int i;
5523
5524 /* test various maps with the first test template */
5525 for (i = 0; i < ARRAY_SIZE(pprint_tests_meta); i++) {
5526 pprint_test_template[0].descr = pprint_tests_meta[i].descr;
5527 pprint_test_template[0].map_type = pprint_tests_meta[i].map_type;
5528 pprint_test_template[0].map_name = pprint_tests_meta[i].map_name;
5529 pprint_test_template[0].ordered_map = pprint_tests_meta[i].ordered_map;
5530 pprint_test_template[0].lossless_map = pprint_tests_meta[i].lossless_map;
5531 pprint_test_template[0].percpu_map = pprint_tests_meta[i].percpu_map;
5532
5533 do_test_pprint(0);
5534 }
5535
5536 /* test rest test templates with the first map */
5537 for (i = 1; i < ARRAY_SIZE(pprint_test_template); i++) {
5538 pprint_test_template[i].descr = pprint_tests_meta[0].descr;
5539 pprint_test_template[i].map_type = pprint_tests_meta[0].map_type;
5540 pprint_test_template[i].map_name = pprint_tests_meta[0].map_name;
5541 pprint_test_template[i].ordered_map = pprint_tests_meta[0].ordered_map;
5542 pprint_test_template[i].lossless_map = pprint_tests_meta[0].lossless_map;
5543 pprint_test_template[i].percpu_map = pprint_tests_meta[0].percpu_map;
5544 do_test_pprint(i);
5545 }
5546 }
5547
5548 #define BPF_LINE_INFO_ENC(insn_off, file_off, line_off, line_num, line_col) \
5549 (insn_off), (file_off), (line_off), ((line_num) << 10 | ((line_col) & 0x3ff))
5550
5551 static struct prog_info_raw_test {
5552 const char *descr;
5553 const char *str_sec;
5554 const char *err_str;
5555 __u32 raw_types[MAX_NR_RAW_U32];
5556 __u32 str_sec_size;
5557 struct bpf_insn insns[MAX_INSNS];
5558 __u32 prog_type;
5559 __u32 func_info[MAX_SUBPROGS][2];
5560 __u32 func_info_rec_size;
5561 __u32 func_info_cnt;
5562 __u32 line_info[MAX_NR_RAW_U32];
5563 __u32 line_info_rec_size;
5564 __u32 nr_jited_ksyms;
5565 bool expected_prog_load_failure;
5566 __u32 dead_code_cnt;
5567 __u32 dead_code_mask;
5568 __u32 dead_func_cnt;
5569 __u32 dead_func_mask;
5570 } info_raw_tests[] = {
5571 {
5572 .descr = "func_type (main func + one sub)",
5573 .raw_types = {
5574 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5575 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */
5576 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */
5577 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
5578 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
5579 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */
5580 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
5581 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
5582 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */
5583 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */
5584 BTF_END_RAW,
5585 },
5586 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB",
5587 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"),
5588 .insns = {
5589 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
5590 BPF_MOV64_IMM(BPF_REG_0, 1),
5591 BPF_EXIT_INSN(),
5592 BPF_MOV64_IMM(BPF_REG_0, 2),
5593 BPF_EXIT_INSN(),
5594 },
5595 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5596 .func_info = { {0, 5}, {3, 6} },
5597 .func_info_rec_size = 8,
5598 .func_info_cnt = 2,
5599 .line_info = { BTF_END_RAW },
5600 },
5601
5602 {
5603 .descr = "func_type (Incorrect func_info_rec_size)",
5604 .raw_types = {
5605 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5606 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */
5607 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */
5608 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
5609 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
5610 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */
5611 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
5612 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
5613 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */
5614 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */
5615 BTF_END_RAW,
5616 },
5617 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB",
5618 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"),
5619 .insns = {
5620 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
5621 BPF_MOV64_IMM(BPF_REG_0, 1),
5622 BPF_EXIT_INSN(),
5623 BPF_MOV64_IMM(BPF_REG_0, 2),
5624 BPF_EXIT_INSN(),
5625 },
5626 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5627 .func_info = { {0, 5}, {3, 6} },
5628 .func_info_rec_size = 4,
5629 .func_info_cnt = 2,
5630 .line_info = { BTF_END_RAW },
5631 .expected_prog_load_failure = true,
5632 },
5633
5634 {
5635 .descr = "func_type (Incorrect func_info_cnt)",
5636 .raw_types = {
5637 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5638 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */
5639 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */
5640 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
5641 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
5642 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */
5643 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
5644 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
5645 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */
5646 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */
5647 BTF_END_RAW,
5648 },
5649 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB",
5650 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"),
5651 .insns = {
5652 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
5653 BPF_MOV64_IMM(BPF_REG_0, 1),
5654 BPF_EXIT_INSN(),
5655 BPF_MOV64_IMM(BPF_REG_0, 2),
5656 BPF_EXIT_INSN(),
5657 },
5658 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5659 .func_info = { {0, 5}, {3, 6} },
5660 .func_info_rec_size = 8,
5661 .func_info_cnt = 1,
5662 .line_info = { BTF_END_RAW },
5663 .expected_prog_load_failure = true,
5664 },
5665
5666 {
5667 .descr = "func_type (Incorrect bpf_func_info.insn_off)",
5668 .raw_types = {
5669 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5670 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */
5671 BTF_FUNC_PROTO_ENC(1, 2), /* [3] */
5672 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
5673 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
5674 BTF_FUNC_PROTO_ENC(1, 2), /* [4] */
5675 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
5676 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
5677 BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */
5678 BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */
5679 BTF_END_RAW,
5680 },
5681 .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB",
5682 .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"),
5683 .insns = {
5684 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
5685 BPF_MOV64_IMM(BPF_REG_0, 1),
5686 BPF_EXIT_INSN(),
5687 BPF_MOV64_IMM(BPF_REG_0, 2),
5688 BPF_EXIT_INSN(),
5689 },
5690 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5691 .func_info = { {0, 5}, {2, 6} },
5692 .func_info_rec_size = 8,
5693 .func_info_cnt = 2,
5694 .line_info = { BTF_END_RAW },
5695 .expected_prog_load_failure = true,
5696 },
5697
5698 {
5699 .descr = "line_info (No subprog)",
5700 .raw_types = {
5701 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5702 BTF_END_RAW,
5703 },
5704 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"),
5705 .insns = {
5706 BPF_MOV64_IMM(BPF_REG_0, 1),
5707 BPF_MOV64_IMM(BPF_REG_1, 2),
5708 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
5709 BPF_EXIT_INSN(),
5710 },
5711 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5712 .func_info_cnt = 0,
5713 .line_info = {
5714 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
5715 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9),
5716 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8),
5717 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7),
5718 BTF_END_RAW,
5719 },
5720 .line_info_rec_size = sizeof(struct bpf_line_info),
5721 .nr_jited_ksyms = 1,
5722 },
5723
5724 {
5725 .descr = "line_info (No subprog. insn_off >= prog->len)",
5726 .raw_types = {
5727 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5728 BTF_END_RAW,
5729 },
5730 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"),
5731 .insns = {
5732 BPF_MOV64_IMM(BPF_REG_0, 1),
5733 BPF_MOV64_IMM(BPF_REG_1, 2),
5734 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
5735 BPF_EXIT_INSN(),
5736 },
5737 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5738 .func_info_cnt = 0,
5739 .line_info = {
5740 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
5741 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9),
5742 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8),
5743 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7),
5744 BPF_LINE_INFO_ENC(4, 0, 0, 5, 6),
5745 BTF_END_RAW,
5746 },
5747 .line_info_rec_size = sizeof(struct bpf_line_info),
5748 .nr_jited_ksyms = 1,
5749 .err_str = "line_info[4].insn_off",
5750 .expected_prog_load_failure = true,
5751 },
5752
5753 {
5754 .descr = "line_info (Zero bpf insn code)",
5755 .raw_types = {
5756 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5757 BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), /* [2] */
5758 BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [3] */
5759 BTF_END_RAW,
5760 },
5761 BTF_STR_SEC("\0int\0unsigned long\0u64\0u64 a=1;\0return a;"),
5762 .insns = {
5763 BPF_LD_IMM64(BPF_REG_0, 1),
5764 BPF_EXIT_INSN(),
5765 },
5766 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5767 .func_info_cnt = 0,
5768 .line_info = {
5769 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
5770 BPF_LINE_INFO_ENC(1, 0, 0, 2, 9),
5771 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8),
5772 BTF_END_RAW,
5773 },
5774 .line_info_rec_size = sizeof(struct bpf_line_info),
5775 .nr_jited_ksyms = 1,
5776 .err_str = "Invalid insn code at line_info[1]",
5777 .expected_prog_load_failure = true,
5778 },
5779
5780 {
5781 .descr = "line_info (No subprog. zero tailing line_info",
5782 .raw_types = {
5783 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5784 BTF_END_RAW,
5785 },
5786 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"),
5787 .insns = {
5788 BPF_MOV64_IMM(BPF_REG_0, 1),
5789 BPF_MOV64_IMM(BPF_REG_1, 2),
5790 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
5791 BPF_EXIT_INSN(),
5792 },
5793 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5794 .func_info_cnt = 0,
5795 .line_info = {
5796 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0,
5797 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0,
5798 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0,
5799 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 0,
5800 BTF_END_RAW,
5801 },
5802 .line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32),
5803 .nr_jited_ksyms = 1,
5804 },
5805
5806 {
5807 .descr = "line_info (No subprog. nonzero tailing line_info)",
5808 .raw_types = {
5809 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5810 BTF_END_RAW,
5811 },
5812 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"),
5813 .insns = {
5814 BPF_MOV64_IMM(BPF_REG_0, 1),
5815 BPF_MOV64_IMM(BPF_REG_1, 2),
5816 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
5817 BPF_EXIT_INSN(),
5818 },
5819 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5820 .func_info_cnt = 0,
5821 .line_info = {
5822 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0,
5823 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0,
5824 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0,
5825 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 1,
5826 BTF_END_RAW,
5827 },
5828 .line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32),
5829 .nr_jited_ksyms = 1,
5830 .err_str = "nonzero tailing record in line_info",
5831 .expected_prog_load_failure = true,
5832 },
5833
5834 {
5835 .descr = "line_info (subprog)",
5836 .raw_types = {
5837 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5838 BTF_END_RAW,
5839 },
5840 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"),
5841 .insns = {
5842 BPF_MOV64_IMM(BPF_REG_2, 1),
5843 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
5844 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
5845 BPF_CALL_REL(1),
5846 BPF_EXIT_INSN(),
5847 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
5848 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
5849 BPF_EXIT_INSN(),
5850 },
5851 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5852 .func_info_cnt = 0,
5853 .line_info = {
5854 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
5855 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9),
5856 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8),
5857 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7),
5858 BTF_END_RAW,
5859 },
5860 .line_info_rec_size = sizeof(struct bpf_line_info),
5861 .nr_jited_ksyms = 2,
5862 },
5863
5864 {
5865 .descr = "line_info (subprog + func_info)",
5866 .raw_types = {
5867 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5868 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */
5869 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
5870 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
5871 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */
5872 BTF_END_RAW,
5873 },
5874 BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0return func(a);\0b+=1;\0return b;"),
5875 .insns = {
5876 BPF_MOV64_IMM(BPF_REG_2, 1),
5877 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
5878 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
5879 BPF_CALL_REL(1),
5880 BPF_EXIT_INSN(),
5881 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
5882 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
5883 BPF_EXIT_INSN(),
5884 },
5885 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5886 .func_info_cnt = 2,
5887 .func_info_rec_size = 8,
5888 .func_info = { {0, 4}, {5, 3} },
5889 .line_info = {
5890 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
5891 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9),
5892 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8),
5893 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7),
5894 BTF_END_RAW,
5895 },
5896 .line_info_rec_size = sizeof(struct bpf_line_info),
5897 .nr_jited_ksyms = 2,
5898 },
5899
5900 {
5901 .descr = "line_info (subprog. missing 1st func line info)",
5902 .raw_types = {
5903 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5904 BTF_END_RAW,
5905 },
5906 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"),
5907 .insns = {
5908 BPF_MOV64_IMM(BPF_REG_2, 1),
5909 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
5910 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
5911 BPF_CALL_REL(1),
5912 BPF_EXIT_INSN(),
5913 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
5914 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
5915 BPF_EXIT_INSN(),
5916 },
5917 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5918 .func_info_cnt = 0,
5919 .line_info = {
5920 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 1, 10),
5921 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9),
5922 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8),
5923 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7),
5924 BTF_END_RAW,
5925 },
5926 .line_info_rec_size = sizeof(struct bpf_line_info),
5927 .nr_jited_ksyms = 2,
5928 .err_str = "missing bpf_line_info for func#0",
5929 .expected_prog_load_failure = true,
5930 },
5931
5932 {
5933 .descr = "line_info (subprog. missing 2nd func line info)",
5934 .raw_types = {
5935 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5936 BTF_END_RAW,
5937 },
5938 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"),
5939 .insns = {
5940 BPF_MOV64_IMM(BPF_REG_2, 1),
5941 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
5942 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
5943 BPF_CALL_REL(1),
5944 BPF_EXIT_INSN(),
5945 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
5946 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
5947 BPF_EXIT_INSN(),
5948 },
5949 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5950 .func_info_cnt = 0,
5951 .line_info = {
5952 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
5953 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9),
5954 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 3, 8),
5955 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7),
5956 BTF_END_RAW,
5957 },
5958 .line_info_rec_size = sizeof(struct bpf_line_info),
5959 .nr_jited_ksyms = 2,
5960 .err_str = "missing bpf_line_info for func#1",
5961 .expected_prog_load_failure = true,
5962 },
5963
5964 {
5965 .descr = "line_info (subprog. unordered insn offset)",
5966 .raw_types = {
5967 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
5968 BTF_END_RAW,
5969 },
5970 BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"),
5971 .insns = {
5972 BPF_MOV64_IMM(BPF_REG_2, 1),
5973 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
5974 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
5975 BPF_CALL_REL(1),
5976 BPF_EXIT_INSN(),
5977 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
5978 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
5979 BPF_EXIT_INSN(),
5980 },
5981 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5982 .func_info_cnt = 0,
5983 .line_info = {
5984 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
5985 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 2, 9),
5986 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8),
5987 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7),
5988 BTF_END_RAW,
5989 },
5990 .line_info_rec_size = sizeof(struct bpf_line_info),
5991 .nr_jited_ksyms = 2,
5992 .err_str = "Invalid line_info[2].insn_off",
5993 .expected_prog_load_failure = true,
5994 },
5995
5996 {
5997 .descr = "line_info (dead start)",
5998 .raw_types = {
5999 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
6000 BTF_END_RAW,
6001 },
6002 BTF_STR_SEC("\0int\0/* dead jmp */\0int a=1;\0int b=2;\0return a + b;\0return a + b;"),
6003 .insns = {
6004 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
6005 BPF_MOV64_IMM(BPF_REG_0, 1),
6006 BPF_MOV64_IMM(BPF_REG_1, 2),
6007 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6008 BPF_EXIT_INSN(),
6009 },
6010 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
6011 .func_info_cnt = 0,
6012 .line_info = {
6013 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
6014 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9),
6015 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8),
6016 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7),
6017 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 5, 6),
6018 BTF_END_RAW,
6019 },
6020 .line_info_rec_size = sizeof(struct bpf_line_info),
6021 .nr_jited_ksyms = 1,
6022 .dead_code_cnt = 1,
6023 .dead_code_mask = 0x01,
6024 },
6025
6026 {
6027 .descr = "line_info (dead end)",
6028 .raw_types = {
6029 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
6030 BTF_END_RAW,
6031 },
6032 BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0/* dead jmp */\0return a + b;\0/* dead exit */"),
6033 .insns = {
6034 BPF_MOV64_IMM(BPF_REG_0, 1),
6035 BPF_MOV64_IMM(BPF_REG_1, 2),
6036 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6037 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1),
6038 BPF_EXIT_INSN(),
6039 BPF_EXIT_INSN(),
6040 },
6041 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
6042 .func_info_cnt = 0,
6043 .line_info = {
6044 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 12),
6045 BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 11),
6046 BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 10),
6047 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 9),
6048 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 5, 8),
6049 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 6, 7),
6050 BTF_END_RAW,
6051 },
6052 .line_info_rec_size = sizeof(struct bpf_line_info),
6053 .nr_jited_ksyms = 1,
6054 .dead_code_cnt = 2,
6055 .dead_code_mask = 0x28,
6056 },
6057
6058 {
6059 .descr = "line_info (dead code + subprog + func_info)",
6060 .raw_types = {
6061 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
6062 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */
6063 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
6064 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
6065 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */
6066 BTF_END_RAW,
6067 },
6068 BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0/* dead jmp */"
6069 "\0/* dead */\0/* dead */\0/* dead */\0/* dead */"
6070 "\0/* dead */\0/* dead */\0/* dead */\0/* dead */"
6071 "\0return func(a);\0b+=1;\0return b;"),
6072 .insns = {
6073 BPF_MOV64_IMM(BPF_REG_2, 1),
6074 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
6075 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
6076 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 8),
6077 BPF_MOV64_IMM(BPF_REG_2, 1),
6078 BPF_MOV64_IMM(BPF_REG_2, 1),
6079 BPF_MOV64_IMM(BPF_REG_2, 1),
6080 BPF_MOV64_IMM(BPF_REG_2, 1),
6081 BPF_MOV64_IMM(BPF_REG_2, 1),
6082 BPF_MOV64_IMM(BPF_REG_2, 1),
6083 BPF_MOV64_IMM(BPF_REG_2, 1),
6084 BPF_MOV64_IMM(BPF_REG_2, 1),
6085 BPF_CALL_REL(1),
6086 BPF_EXIT_INSN(),
6087 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
6088 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
6089 BPF_EXIT_INSN(),
6090 },
6091 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
6092 .func_info_cnt = 2,
6093 .func_info_rec_size = 8,
6094 .func_info = { {0, 4}, {14, 3} },
6095 .line_info = {
6096 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
6097 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10),
6098 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10),
6099 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10),
6100 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10),
6101 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10),
6102 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10),
6103 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10),
6104 BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10),
6105 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9),
6106 BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9),
6107 BPF_LINE_INFO_ENC(14, 0, NAME_TBD, 3, 8),
6108 BPF_LINE_INFO_ENC(16, 0, NAME_TBD, 4, 7),
6109 BTF_END_RAW,
6110 },
6111 .line_info_rec_size = sizeof(struct bpf_line_info),
6112 .nr_jited_ksyms = 2,
6113 .dead_code_cnt = 9,
6114 .dead_code_mask = 0x3fe,
6115 },
6116
6117 {
6118 .descr = "line_info (dead subprog)",
6119 .raw_types = {
6120 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
6121 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */
6122 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
6123 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
6124 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */
6125 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */
6126 BTF_END_RAW,
6127 },
6128 BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* live call */"
6129 "\0return 0;\0return 0;\0/* dead */\0/* dead */"
6130 "\0/* dead */\0return bla + 1;\0return bla + 1;"
6131 "\0return bla + 1;\0return func(a);\0b+=1;\0return b;"),
6132 .insns = {
6133 BPF_MOV64_IMM(BPF_REG_2, 1),
6134 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
6135 BPF_CALL_REL(3),
6136 BPF_CALL_REL(5),
6137 BPF_MOV64_IMM(BPF_REG_0, 0),
6138 BPF_EXIT_INSN(),
6139 BPF_MOV64_IMM(BPF_REG_0, 0),
6140 BPF_CALL_REL(1),
6141 BPF_EXIT_INSN(),
6142 BPF_MOV64_REG(BPF_REG_0, 2),
6143 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
6144 BPF_EXIT_INSN(),
6145 },
6146 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
6147 .func_info_cnt = 3,
6148 .func_info_rec_size = 8,
6149 .func_info = { {0, 4}, {6, 3}, {9, 5} },
6150 .line_info = {
6151 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
6152 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10),
6153 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10),
6154 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10),
6155 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10),
6156 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10),
6157 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10),
6158 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10),
6159 BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10),
6160 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9),
6161 BTF_END_RAW,
6162 },
6163 .line_info_rec_size = sizeof(struct bpf_line_info),
6164 .nr_jited_ksyms = 2,
6165 .dead_code_cnt = 3,
6166 .dead_code_mask = 0x70,
6167 .dead_func_cnt = 1,
6168 .dead_func_mask = 0x2,
6169 },
6170
6171 {
6172 .descr = "line_info (dead last subprog)",
6173 .raw_types = {
6174 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
6175 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */
6176 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
6177 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
6178 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */
6179 BTF_END_RAW,
6180 },
6181 BTF_STR_SEC("\0int\0x\0dead\0main\0int a=1+1;\0/* live call */"
6182 "\0return 0;\0/* dead */\0/* dead */"),
6183 .insns = {
6184 BPF_MOV64_IMM(BPF_REG_2, 1),
6185 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
6186 BPF_CALL_REL(2),
6187 BPF_MOV64_IMM(BPF_REG_0, 0),
6188 BPF_EXIT_INSN(),
6189 BPF_MOV64_IMM(BPF_REG_0, 0),
6190 BPF_EXIT_INSN(),
6191 },
6192 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
6193 .func_info_cnt = 2,
6194 .func_info_rec_size = 8,
6195 .func_info = { {0, 4}, {5, 3} },
6196 .line_info = {
6197 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
6198 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10),
6199 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10),
6200 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10),
6201 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10),
6202 BTF_END_RAW,
6203 },
6204 .line_info_rec_size = sizeof(struct bpf_line_info),
6205 .nr_jited_ksyms = 1,
6206 .dead_code_cnt = 2,
6207 .dead_code_mask = 0x18,
6208 .dead_func_cnt = 1,
6209 .dead_func_mask = 0x2,
6210 },
6211
6212 {
6213 .descr = "line_info (dead subprog + dead start)",
6214 .raw_types = {
6215 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
6216 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */
6217 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
6218 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
6219 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */
6220 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */
6221 BTF_END_RAW,
6222 },
6223 BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* dead */"
6224 "\0return 0;\0return 0;\0return 0;"
6225 "\0/* dead */\0/* dead */\0/* dead */\0/* dead */"
6226 "\0return b + 1;\0return b + 1;\0return b + 1;"),
6227 .insns = {
6228 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
6229 BPF_MOV64_IMM(BPF_REG_2, 1),
6230 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
6231 BPF_CALL_REL(3),
6232 BPF_CALL_REL(5),
6233 BPF_MOV64_IMM(BPF_REG_0, 0),
6234 BPF_EXIT_INSN(),
6235 BPF_MOV64_IMM(BPF_REG_0, 0),
6236 BPF_CALL_REL(1),
6237 BPF_EXIT_INSN(),
6238 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
6239 BPF_MOV64_REG(BPF_REG_0, 2),
6240 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
6241 BPF_EXIT_INSN(),
6242 },
6243 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
6244 .func_info_cnt = 3,
6245 .func_info_rec_size = 8,
6246 .func_info = { {0, 4}, {7, 3}, {10, 5} },
6247 .line_info = {
6248 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
6249 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10),
6250 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10),
6251 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10),
6252 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10),
6253 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10),
6254 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10),
6255 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10),
6256 BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10),
6257 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9),
6258 BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9),
6259 BPF_LINE_INFO_ENC(13, 0, NAME_TBD, 2, 9),
6260 BTF_END_RAW,
6261 },
6262 .line_info_rec_size = sizeof(struct bpf_line_info),
6263 .nr_jited_ksyms = 2,
6264 .dead_code_cnt = 5,
6265 .dead_code_mask = 0x1e2,
6266 .dead_func_cnt = 1,
6267 .dead_func_mask = 0x2,
6268 },
6269
6270 {
6271 .descr = "line_info (dead subprog + dead start w/ move)",
6272 .raw_types = {
6273 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
6274 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */
6275 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
6276 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
6277 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */
6278 BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */
6279 BTF_END_RAW,
6280 },
6281 BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* live call */"
6282 "\0return 0;\0return 0;\0/* dead */\0/* dead */"
6283 "\0/* dead */\0return bla + 1;\0return bla + 1;"
6284 "\0return bla + 1;\0return func(a);\0b+=1;\0return b;"),
6285 .insns = {
6286 BPF_MOV64_IMM(BPF_REG_2, 1),
6287 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
6288 BPF_CALL_REL(3),
6289 BPF_CALL_REL(5),
6290 BPF_MOV64_IMM(BPF_REG_0, 0),
6291 BPF_EXIT_INSN(),
6292 BPF_MOV64_IMM(BPF_REG_0, 0),
6293 BPF_CALL_REL(1),
6294 BPF_EXIT_INSN(),
6295 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
6296 BPF_MOV64_REG(BPF_REG_0, 2),
6297 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
6298 BPF_EXIT_INSN(),
6299 },
6300 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
6301 .func_info_cnt = 3,
6302 .func_info_rec_size = 8,
6303 .func_info = { {0, 4}, {6, 3}, {9, 5} },
6304 .line_info = {
6305 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
6306 BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10),
6307 BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10),
6308 BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10),
6309 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10),
6310 BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10),
6311 BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10),
6312 BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10),
6313 BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 1, 10),
6314 BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9),
6315 BTF_END_RAW,
6316 },
6317 .line_info_rec_size = sizeof(struct bpf_line_info),
6318 .nr_jited_ksyms = 2,
6319 .dead_code_cnt = 3,
6320 .dead_code_mask = 0x70,
6321 .dead_func_cnt = 1,
6322 .dead_func_mask = 0x2,
6323 },
6324
6325 {
6326 .descr = "line_info (dead end + subprog start w/ no linfo)",
6327 .raw_types = {
6328 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
6329 BTF_FUNC_PROTO_ENC(1, 1), /* [2] */
6330 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
6331 BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
6332 BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */
6333 BTF_END_RAW,
6334 },
6335 BTF_STR_SEC("\0int\0x\0main\0func\0/* main linfo */\0/* func linfo */"),
6336 .insns = {
6337 BPF_MOV64_IMM(BPF_REG_0, 0),
6338 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 1, 3),
6339 BPF_CALL_REL(3),
6340 BPF_MOV64_IMM(BPF_REG_0, 0),
6341 BPF_EXIT_INSN(),
6342 BPF_EXIT_INSN(),
6343 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
6344 BPF_EXIT_INSN(),
6345 },
6346 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
6347 .func_info_cnt = 2,
6348 .func_info_rec_size = 8,
6349 .func_info = { {0, 3}, {6, 4}, },
6350 .line_info = {
6351 BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
6352 BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10),
6353 BTF_END_RAW,
6354 },
6355 .line_info_rec_size = sizeof(struct bpf_line_info),
6356 .nr_jited_ksyms = 2,
6357 },
6358
6359 };
6360
probe_prog_length(const struct bpf_insn * fp)6361 static size_t probe_prog_length(const struct bpf_insn *fp)
6362 {
6363 size_t len;
6364
6365 for (len = MAX_INSNS - 1; len > 0; --len)
6366 if (fp[len].code != 0 || fp[len].imm != 0)
6367 break;
6368 return len + 1;
6369 }
6370
patch_name_tbd(const __u32 * raw_u32,const char * str,__u32 str_off,unsigned int str_sec_size,unsigned int * ret_size)6371 static __u32 *patch_name_tbd(const __u32 *raw_u32,
6372 const char *str, __u32 str_off,
6373 unsigned int str_sec_size,
6374 unsigned int *ret_size)
6375 {
6376 int i, raw_u32_size = get_raw_sec_size(raw_u32);
6377 const char *end_str = str + str_sec_size;
6378 const char *next_str = str + str_off;
6379 __u32 *new_u32 = NULL;
6380
6381 if (raw_u32_size == -1)
6382 return ERR_PTR(-EINVAL);
6383
6384 if (!raw_u32_size) {
6385 *ret_size = 0;
6386 return NULL;
6387 }
6388
6389 new_u32 = malloc(raw_u32_size);
6390 if (!new_u32)
6391 return ERR_PTR(-ENOMEM);
6392
6393 for (i = 0; i < raw_u32_size / sizeof(raw_u32[0]); i++) {
6394 if (raw_u32[i] == NAME_TBD) {
6395 next_str = get_next_str(next_str, end_str);
6396 if (CHECK(!next_str, "Error in getting next_str\n")) {
6397 free(new_u32);
6398 return ERR_PTR(-EINVAL);
6399 }
6400 new_u32[i] = next_str - str;
6401 next_str += strlen(next_str);
6402 } else {
6403 new_u32[i] = raw_u32[i];
6404 }
6405 }
6406
6407 *ret_size = raw_u32_size;
6408 return new_u32;
6409 }
6410
test_get_finfo(const struct prog_info_raw_test * test,int prog_fd)6411 static int test_get_finfo(const struct prog_info_raw_test *test,
6412 int prog_fd)
6413 {
6414 struct bpf_prog_info info = {};
6415 struct bpf_func_info *finfo;
6416 __u32 info_len, rec_size, i;
6417 void *func_info = NULL;
6418 __u32 nr_func_info;
6419 int err;
6420
6421 /* get necessary lens */
6422 info_len = sizeof(struct bpf_prog_info);
6423 err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
6424 if (CHECK(err < 0, "invalid get info (1st) errno:%d", errno)) {
6425 fprintf(stderr, "%s\n", btf_log_buf);
6426 return -1;
6427 }
6428 nr_func_info = test->func_info_cnt - test->dead_func_cnt;
6429 if (CHECK(info.nr_func_info != nr_func_info,
6430 "incorrect info.nr_func_info (1st) %d",
6431 info.nr_func_info)) {
6432 return -1;
6433 }
6434
6435 rec_size = info.func_info_rec_size;
6436 if (CHECK(rec_size != sizeof(struct bpf_func_info),
6437 "incorrect info.func_info_rec_size (1st) %d", rec_size)) {
6438 return -1;
6439 }
6440
6441 if (!info.nr_func_info)
6442 return 0;
6443
6444 func_info = malloc(info.nr_func_info * rec_size);
6445 if (CHECK(!func_info, "out of memory"))
6446 return -1;
6447
6448 /* reset info to only retrieve func_info related data */
6449 memset(&info, 0, sizeof(info));
6450 info.nr_func_info = nr_func_info;
6451 info.func_info_rec_size = rec_size;
6452 info.func_info = ptr_to_u64(func_info);
6453 err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
6454 if (CHECK(err < 0, "invalid get info (2nd) errno:%d", errno)) {
6455 fprintf(stderr, "%s\n", btf_log_buf);
6456 err = -1;
6457 goto done;
6458 }
6459 if (CHECK(info.nr_func_info != nr_func_info,
6460 "incorrect info.nr_func_info (2nd) %d",
6461 info.nr_func_info)) {
6462 err = -1;
6463 goto done;
6464 }
6465 if (CHECK(info.func_info_rec_size != rec_size,
6466 "incorrect info.func_info_rec_size (2nd) %d",
6467 info.func_info_rec_size)) {
6468 err = -1;
6469 goto done;
6470 }
6471
6472 finfo = func_info;
6473 for (i = 0; i < nr_func_info; i++) {
6474 if (test->dead_func_mask & (1 << i))
6475 continue;
6476 if (CHECK(finfo->type_id != test->func_info[i][1],
6477 "incorrect func_type %u expected %u",
6478 finfo->type_id, test->func_info[i][1])) {
6479 err = -1;
6480 goto done;
6481 }
6482 finfo = (void *)finfo + rec_size;
6483 }
6484
6485 err = 0;
6486
6487 done:
6488 free(func_info);
6489 return err;
6490 }
6491
test_get_linfo(const struct prog_info_raw_test * test,const void * patched_linfo,__u32 cnt,int prog_fd)6492 static int test_get_linfo(const struct prog_info_raw_test *test,
6493 const void *patched_linfo,
6494 __u32 cnt, int prog_fd)
6495 {
6496 __u32 i, info_len, nr_jited_ksyms, nr_jited_func_lens;
6497 __u64 *jited_linfo = NULL, *jited_ksyms = NULL;
6498 __u32 rec_size, jited_rec_size, jited_cnt;
6499 struct bpf_line_info *linfo = NULL;
6500 __u32 cur_func_len, ksyms_found;
6501 struct bpf_prog_info info = {};
6502 __u32 *jited_func_lens = NULL;
6503 __u64 cur_func_ksyms;
6504 __u32 dead_insns;
6505 int err;
6506
6507 jited_cnt = cnt;
6508 rec_size = sizeof(*linfo);
6509 jited_rec_size = sizeof(*jited_linfo);
6510 if (test->nr_jited_ksyms)
6511 nr_jited_ksyms = test->nr_jited_ksyms;
6512 else
6513 nr_jited_ksyms = test->func_info_cnt - test->dead_func_cnt;
6514 nr_jited_func_lens = nr_jited_ksyms;
6515
6516 info_len = sizeof(struct bpf_prog_info);
6517 err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
6518 if (CHECK(err < 0, "err:%d errno:%d", err, errno)) {
6519 err = -1;
6520 goto done;
6521 }
6522
6523 if (!info.jited_prog_len) {
6524 /* prog is not jited */
6525 jited_cnt = 0;
6526 nr_jited_ksyms = 1;
6527 nr_jited_func_lens = 1;
6528 }
6529
6530 if (CHECK(info.nr_line_info != cnt ||
6531 info.nr_jited_line_info != jited_cnt ||
6532 info.nr_jited_ksyms != nr_jited_ksyms ||
6533 info.nr_jited_func_lens != nr_jited_func_lens ||
6534 (!info.nr_line_info && info.nr_jited_line_info),
6535 "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)",
6536 info.nr_line_info, cnt,
6537 info.nr_jited_line_info, jited_cnt,
6538 info.nr_jited_ksyms, nr_jited_ksyms,
6539 info.nr_jited_func_lens, nr_jited_func_lens)) {
6540 err = -1;
6541 goto done;
6542 }
6543
6544 if (CHECK(info.line_info_rec_size != sizeof(struct bpf_line_info) ||
6545 info.jited_line_info_rec_size != sizeof(__u64),
6546 "info: line_info_rec_size:%u(userspace expected:%u) jited_line_info_rec_size:%u(userspace expected:%u)",
6547 info.line_info_rec_size, rec_size,
6548 info.jited_line_info_rec_size, jited_rec_size)) {
6549 err = -1;
6550 goto done;
6551 }
6552
6553 if (!cnt)
6554 return 0;
6555
6556 rec_size = info.line_info_rec_size;
6557 jited_rec_size = info.jited_line_info_rec_size;
6558
6559 memset(&info, 0, sizeof(info));
6560
6561 linfo = calloc(cnt, rec_size);
6562 if (CHECK(!linfo, "!linfo")) {
6563 err = -1;
6564 goto done;
6565 }
6566 info.nr_line_info = cnt;
6567 info.line_info_rec_size = rec_size;
6568 info.line_info = ptr_to_u64(linfo);
6569
6570 if (jited_cnt) {
6571 jited_linfo = calloc(jited_cnt, jited_rec_size);
6572 jited_ksyms = calloc(nr_jited_ksyms, sizeof(*jited_ksyms));
6573 jited_func_lens = calloc(nr_jited_func_lens,
6574 sizeof(*jited_func_lens));
6575 if (CHECK(!jited_linfo || !jited_ksyms || !jited_func_lens,
6576 "jited_linfo:%p jited_ksyms:%p jited_func_lens:%p",
6577 jited_linfo, jited_ksyms, jited_func_lens)) {
6578 err = -1;
6579 goto done;
6580 }
6581
6582 info.nr_jited_line_info = jited_cnt;
6583 info.jited_line_info_rec_size = jited_rec_size;
6584 info.jited_line_info = ptr_to_u64(jited_linfo);
6585 info.nr_jited_ksyms = nr_jited_ksyms;
6586 info.jited_ksyms = ptr_to_u64(jited_ksyms);
6587 info.nr_jited_func_lens = nr_jited_func_lens;
6588 info.jited_func_lens = ptr_to_u64(jited_func_lens);
6589 }
6590
6591 err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
6592
6593 /*
6594 * Only recheck the info.*line_info* fields.
6595 * Other fields are not the concern of this test.
6596 */
6597 if (CHECK(err < 0 ||
6598 info.nr_line_info != cnt ||
6599 (jited_cnt && !info.jited_line_info) ||
6600 info.nr_jited_line_info != jited_cnt ||
6601 info.line_info_rec_size != rec_size ||
6602 info.jited_line_info_rec_size != jited_rec_size,
6603 "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",
6604 err, errno,
6605 info.nr_line_info, cnt,
6606 info.nr_jited_line_info, jited_cnt,
6607 info.line_info_rec_size, rec_size,
6608 info.jited_line_info_rec_size, jited_rec_size,
6609 (void *)(long)info.line_info,
6610 (void *)(long)info.jited_line_info)) {
6611 err = -1;
6612 goto done;
6613 }
6614
6615 dead_insns = 0;
6616 while (test->dead_code_mask & (1 << dead_insns))
6617 dead_insns++;
6618
6619 CHECK(linfo[0].insn_off, "linfo[0].insn_off:%u",
6620 linfo[0].insn_off);
6621 for (i = 1; i < cnt; i++) {
6622 const struct bpf_line_info *expected_linfo;
6623
6624 while (test->dead_code_mask & (1 << (i + dead_insns)))
6625 dead_insns++;
6626
6627 expected_linfo = patched_linfo +
6628 ((i + dead_insns) * test->line_info_rec_size);
6629 if (CHECK(linfo[i].insn_off <= linfo[i - 1].insn_off,
6630 "linfo[%u].insn_off:%u <= linfo[%u].insn_off:%u",
6631 i, linfo[i].insn_off,
6632 i - 1, linfo[i - 1].insn_off)) {
6633 err = -1;
6634 goto done;
6635 }
6636 if (CHECK(linfo[i].file_name_off != expected_linfo->file_name_off ||
6637 linfo[i].line_off != expected_linfo->line_off ||
6638 linfo[i].line_col != expected_linfo->line_col,
6639 "linfo[%u] (%u, %u, %u) != (%u, %u, %u)", i,
6640 linfo[i].file_name_off,
6641 linfo[i].line_off,
6642 linfo[i].line_col,
6643 expected_linfo->file_name_off,
6644 expected_linfo->line_off,
6645 expected_linfo->line_col)) {
6646 err = -1;
6647 goto done;
6648 }
6649 }
6650
6651 if (!jited_cnt) {
6652 fprintf(stderr, "not jited. skipping jited_line_info check. ");
6653 err = 0;
6654 goto done;
6655 }
6656
6657 if (CHECK(jited_linfo[0] != jited_ksyms[0],
6658 "jited_linfo[0]:%lx != jited_ksyms[0]:%lx",
6659 (long)(jited_linfo[0]), (long)(jited_ksyms[0]))) {
6660 err = -1;
6661 goto done;
6662 }
6663
6664 ksyms_found = 1;
6665 cur_func_len = jited_func_lens[0];
6666 cur_func_ksyms = jited_ksyms[0];
6667 for (i = 1; i < jited_cnt; i++) {
6668 if (ksyms_found < nr_jited_ksyms &&
6669 jited_linfo[i] == jited_ksyms[ksyms_found]) {
6670 cur_func_ksyms = jited_ksyms[ksyms_found];
6671 cur_func_len = jited_ksyms[ksyms_found];
6672 ksyms_found++;
6673 continue;
6674 }
6675
6676 if (CHECK(jited_linfo[i] <= jited_linfo[i - 1],
6677 "jited_linfo[%u]:%lx <= jited_linfo[%u]:%lx",
6678 i, (long)jited_linfo[i],
6679 i - 1, (long)(jited_linfo[i - 1]))) {
6680 err = -1;
6681 goto done;
6682 }
6683
6684 if (CHECK(jited_linfo[i] - cur_func_ksyms > cur_func_len,
6685 "jited_linfo[%u]:%lx - %lx > %u",
6686 i, (long)jited_linfo[i], (long)cur_func_ksyms,
6687 cur_func_len)) {
6688 err = -1;
6689 goto done;
6690 }
6691 }
6692
6693 if (CHECK(ksyms_found != nr_jited_ksyms,
6694 "ksyms_found:%u != nr_jited_ksyms:%u",
6695 ksyms_found, nr_jited_ksyms)) {
6696 err = -1;
6697 goto done;
6698 }
6699
6700 err = 0;
6701
6702 done:
6703 free(linfo);
6704 free(jited_linfo);
6705 free(jited_ksyms);
6706 free(jited_func_lens);
6707 return err;
6708 }
6709
do_test_info_raw(unsigned int test_num)6710 static void do_test_info_raw(unsigned int test_num)
6711 {
6712 const struct prog_info_raw_test *test = &info_raw_tests[test_num - 1];
6713 unsigned int raw_btf_size, linfo_str_off, linfo_size = 0;
6714 int btf_fd = -1, prog_fd = -1, err = 0;
6715 void *raw_btf, *patched_linfo = NULL;
6716 const char *ret_next_str;
6717 union bpf_attr attr = {};
6718
6719 if (!test__start_subtest(test->descr))
6720 return;
6721
6722 raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types,
6723 test->str_sec, test->str_sec_size,
6724 &raw_btf_size, &ret_next_str);
6725 if (!raw_btf)
6726 return;
6727
6728 *btf_log_buf = '\0';
6729 btf_fd = load_raw_btf(raw_btf, raw_btf_size);
6730 free(raw_btf);
6731
6732 if (CHECK(btf_fd < 0, "invalid btf_fd errno:%d", errno)) {
6733 err = -1;
6734 goto done;
6735 }
6736
6737 if (*btf_log_buf && always_log)
6738 fprintf(stderr, "\n%s", btf_log_buf);
6739 *btf_log_buf = '\0';
6740
6741 linfo_str_off = ret_next_str - test->str_sec;
6742 patched_linfo = patch_name_tbd(test->line_info,
6743 test->str_sec, linfo_str_off,
6744 test->str_sec_size, &linfo_size);
6745 err = libbpf_get_error(patched_linfo);
6746 if (err) {
6747 fprintf(stderr, "error in creating raw bpf_line_info");
6748 err = -1;
6749 goto done;
6750 }
6751
6752 attr.prog_type = test->prog_type;
6753 attr.insns = ptr_to_u64(test->insns);
6754 attr.insn_cnt = probe_prog_length(test->insns);
6755 attr.license = ptr_to_u64("GPL");
6756 attr.prog_btf_fd = btf_fd;
6757 attr.func_info_rec_size = test->func_info_rec_size;
6758 attr.func_info_cnt = test->func_info_cnt;
6759 attr.func_info = ptr_to_u64(test->func_info);
6760 attr.log_buf = ptr_to_u64(btf_log_buf);
6761 attr.log_size = BTF_LOG_BUF_SIZE;
6762 attr.log_level = 1;
6763 if (linfo_size) {
6764 attr.line_info_rec_size = test->line_info_rec_size;
6765 attr.line_info = ptr_to_u64(patched_linfo);
6766 attr.line_info_cnt = linfo_size / attr.line_info_rec_size;
6767 }
6768
6769 prog_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
6770 err = ((prog_fd < 0) != test->expected_prog_load_failure);
6771 if (CHECK(err, "prog_fd:%d expected_prog_load_failure:%u errno:%d",
6772 prog_fd, test->expected_prog_load_failure, errno) ||
6773 CHECK(test->err_str && !strstr(btf_log_buf, test->err_str),
6774 "expected err_str:%s", test->err_str)) {
6775 err = -1;
6776 goto done;
6777 }
6778
6779 if (prog_fd < 0)
6780 goto done;
6781
6782 err = test_get_finfo(test, prog_fd);
6783 if (err)
6784 goto done;
6785
6786 err = test_get_linfo(test, patched_linfo,
6787 attr.line_info_cnt - test->dead_code_cnt,
6788 prog_fd);
6789 if (err)
6790 goto done;
6791
6792 done:
6793 if (*btf_log_buf && (err || always_log))
6794 fprintf(stderr, "\n%s", btf_log_buf);
6795
6796 if (btf_fd >= 0)
6797 close(btf_fd);
6798 if (prog_fd >= 0)
6799 close(prog_fd);
6800
6801 if (!libbpf_get_error(patched_linfo))
6802 free(patched_linfo);
6803 }
6804
6805 struct btf_raw_data {
6806 __u32 raw_types[MAX_NR_RAW_U32];
6807 const char *str_sec;
6808 __u32 str_sec_size;
6809 };
6810
6811 struct btf_dedup_test {
6812 const char *descr;
6813 struct btf_raw_data input;
6814 struct btf_raw_data expect;
6815 struct btf_dedup_opts opts;
6816 };
6817
6818 static struct btf_dedup_test dedup_tests[] = {
6819
6820 {
6821 .descr = "dedup: unused strings filtering",
6822 .input = {
6823 .raw_types = {
6824 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 4),
6825 BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 64, 8),
6826 BTF_END_RAW,
6827 },
6828 BTF_STR_SEC("\0unused\0int\0foo\0bar\0long"),
6829 },
6830 .expect = {
6831 .raw_types = {
6832 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4),
6833 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8),
6834 BTF_END_RAW,
6835 },
6836 BTF_STR_SEC("\0int\0long"),
6837 },
6838 },
6839 {
6840 .descr = "dedup: strings deduplication",
6841 .input = {
6842 .raw_types = {
6843 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4),
6844 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8),
6845 BTF_TYPE_INT_ENC(NAME_NTH(3), BTF_INT_SIGNED, 0, 32, 4),
6846 BTF_TYPE_INT_ENC(NAME_NTH(4), BTF_INT_SIGNED, 0, 64, 8),
6847 BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 32, 4),
6848 BTF_END_RAW,
6849 },
6850 BTF_STR_SEC("\0int\0long int\0int\0long int\0int"),
6851 },
6852 .expect = {
6853 .raw_types = {
6854 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4),
6855 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8),
6856 BTF_END_RAW,
6857 },
6858 BTF_STR_SEC("\0int\0long int"),
6859 },
6860 },
6861 {
6862 .descr = "dedup: struct example #1",
6863 /*
6864 * struct s {
6865 * struct s *next;
6866 * const int *a;
6867 * int b[16];
6868 * int c;
6869 * }
6870 */
6871 .input = {
6872 .raw_types = {
6873 /* int */
6874 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [1] */
6875 /* int[16] */
6876 BTF_TYPE_ARRAY_ENC(1, 1, 16), /* [2] */
6877 /* struct s { */
6878 BTF_STRUCT_ENC(NAME_NTH(2), 5, 88), /* [3] */
6879 BTF_MEMBER_ENC(NAME_NTH(3), 4, 0), /* struct s *next; */
6880 BTF_MEMBER_ENC(NAME_NTH(4), 5, 64), /* const int *a; */
6881 BTF_MEMBER_ENC(NAME_NTH(5), 2, 128), /* int b[16]; */
6882 BTF_MEMBER_ENC(NAME_NTH(6), 1, 640), /* int c; */
6883 BTF_MEMBER_ENC(NAME_NTH(8), 15, 672), /* float d; */
6884 /* ptr -> [3] struct s */
6885 BTF_PTR_ENC(3), /* [4] */
6886 /* ptr -> [6] const int */
6887 BTF_PTR_ENC(6), /* [5] */
6888 /* const -> [1] int */
6889 BTF_CONST_ENC(1), /* [6] */
6890 /* tag -> [3] struct s */
6891 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [7] */
6892 /* tag -> [3] struct s, member 1 */
6893 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, 1), /* [8] */
6894
6895 /* full copy of the above */
6896 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [9] */
6897 BTF_TYPE_ARRAY_ENC(9, 9, 16), /* [10] */
6898 BTF_STRUCT_ENC(NAME_NTH(2), 5, 88), /* [11] */
6899 BTF_MEMBER_ENC(NAME_NTH(3), 12, 0),
6900 BTF_MEMBER_ENC(NAME_NTH(4), 13, 64),
6901 BTF_MEMBER_ENC(NAME_NTH(5), 10, 128),
6902 BTF_MEMBER_ENC(NAME_NTH(6), 9, 640),
6903 BTF_MEMBER_ENC(NAME_NTH(8), 15, 672),
6904 BTF_PTR_ENC(11), /* [12] */
6905 BTF_PTR_ENC(14), /* [13] */
6906 BTF_CONST_ENC(9), /* [14] */
6907 BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4), /* [15] */
6908 BTF_DECL_TAG_ENC(NAME_NTH(2), 11, -1), /* [16] */
6909 BTF_DECL_TAG_ENC(NAME_NTH(2), 11, 1), /* [17] */
6910 BTF_END_RAW,
6911 },
6912 BTF_STR_SEC("\0int\0s\0next\0a\0b\0c\0float\0d"),
6913 },
6914 .expect = {
6915 .raw_types = {
6916 /* int */
6917 BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 32, 4), /* [1] */
6918 /* int[16] */
6919 BTF_TYPE_ARRAY_ENC(1, 1, 16), /* [2] */
6920 /* struct s { */
6921 BTF_STRUCT_ENC(NAME_NTH(8), 5, 88), /* [3] */
6922 BTF_MEMBER_ENC(NAME_NTH(7), 4, 0), /* struct s *next; */
6923 BTF_MEMBER_ENC(NAME_NTH(1), 5, 64), /* const int *a; */
6924 BTF_MEMBER_ENC(NAME_NTH(2), 2, 128), /* int b[16]; */
6925 BTF_MEMBER_ENC(NAME_NTH(3), 1, 640), /* int c; */
6926 BTF_MEMBER_ENC(NAME_NTH(4), 9, 672), /* float d; */
6927 /* ptr -> [3] struct s */
6928 BTF_PTR_ENC(3), /* [4] */
6929 /* ptr -> [6] const int */
6930 BTF_PTR_ENC(6), /* [5] */
6931 /* const -> [1] int */
6932 BTF_CONST_ENC(1), /* [6] */
6933 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [7] */
6934 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, 1), /* [8] */
6935 BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4), /* [9] */
6936 BTF_END_RAW,
6937 },
6938 BTF_STR_SEC("\0a\0b\0c\0d\0int\0float\0next\0s"),
6939 },
6940 },
6941 {
6942 .descr = "dedup: struct <-> fwd resolution w/ hash collision",
6943 /*
6944 * // CU 1:
6945 * struct x;
6946 * struct s {
6947 * struct x *x;
6948 * };
6949 * // CU 2:
6950 * struct x {};
6951 * struct s {
6952 * struct x *x;
6953 * };
6954 */
6955 .input = {
6956 .raw_types = {
6957 /* CU 1 */
6958 BTF_FWD_ENC(NAME_TBD, 0 /* struct fwd */), /* [1] fwd x */
6959 BTF_PTR_ENC(1), /* [2] ptr -> [1] */
6960 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [3] struct s */
6961 BTF_MEMBER_ENC(NAME_TBD, 2, 0),
6962 /* CU 2 */
6963 BTF_STRUCT_ENC(NAME_TBD, 0, 0), /* [4] struct x */
6964 BTF_PTR_ENC(4), /* [5] ptr -> [4] */
6965 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [6] struct s */
6966 BTF_MEMBER_ENC(NAME_TBD, 5, 0),
6967 BTF_END_RAW,
6968 },
6969 BTF_STR_SEC("\0x\0s\0x\0x\0s\0x\0"),
6970 },
6971 .expect = {
6972 .raw_types = {
6973 BTF_PTR_ENC(3), /* [1] ptr -> [3] */
6974 BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [2] struct s */
6975 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
6976 BTF_STRUCT_ENC(NAME_NTH(2), 0, 0), /* [3] struct x */
6977 BTF_END_RAW,
6978 },
6979 BTF_STR_SEC("\0s\0x"),
6980 },
6981 .opts = {
6982 .force_collisions = true, /* force hash collisions */
6983 },
6984 },
6985 {
6986 .descr = "dedup: void equiv check",
6987 /*
6988 * // CU 1:
6989 * struct s {
6990 * struct {} *x;
6991 * };
6992 * // CU 2:
6993 * struct s {
6994 * int *x;
6995 * };
6996 */
6997 .input = {
6998 .raw_types = {
6999 /* CU 1 */
7000 BTF_STRUCT_ENC(0, 0, 1), /* [1] struct {} */
7001 BTF_PTR_ENC(1), /* [2] ptr -> [1] */
7002 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [3] struct s */
7003 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
7004 /* CU 2 */
7005 BTF_PTR_ENC(0), /* [4] ptr -> void */
7006 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [5] struct s */
7007 BTF_MEMBER_ENC(NAME_NTH(2), 4, 0),
7008 BTF_END_RAW,
7009 },
7010 BTF_STR_SEC("\0s\0x"),
7011 },
7012 .expect = {
7013 .raw_types = {
7014 /* CU 1 */
7015 BTF_STRUCT_ENC(0, 0, 1), /* [1] struct {} */
7016 BTF_PTR_ENC(1), /* [2] ptr -> [1] */
7017 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [3] struct s */
7018 BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
7019 /* CU 2 */
7020 BTF_PTR_ENC(0), /* [4] ptr -> void */
7021 BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [5] struct s */
7022 BTF_MEMBER_ENC(NAME_NTH(2), 4, 0),
7023 BTF_END_RAW,
7024 },
7025 BTF_STR_SEC("\0s\0x"),
7026 },
7027 .opts = {
7028 .force_collisions = true, /* force hash collisions */
7029 },
7030 },
7031 {
7032 .descr = "dedup: all possible kinds (no duplicates)",
7033 .input = {
7034 .raw_types = {
7035 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 8), /* [1] int */
7036 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 4), /* [2] enum */
7037 BTF_ENUM_ENC(NAME_TBD, 0),
7038 BTF_ENUM_ENC(NAME_TBD, 1),
7039 BTF_FWD_ENC(NAME_TBD, 1 /* union kind_flag */), /* [3] fwd */
7040 BTF_TYPE_ARRAY_ENC(2, 1, 7), /* [4] array */
7041 BTF_STRUCT_ENC(NAME_TBD, 1, 4), /* [5] struct */
7042 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
7043 BTF_UNION_ENC(NAME_TBD, 1, 4), /* [6] union */
7044 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
7045 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [7] typedef */
7046 BTF_PTR_ENC(0), /* [8] ptr */
7047 BTF_CONST_ENC(8), /* [9] const */
7048 BTF_VOLATILE_ENC(8), /* [10] volatile */
7049 BTF_RESTRICT_ENC(8), /* [11] restrict */
7050 BTF_FUNC_PROTO_ENC(1, 2), /* [12] func_proto */
7051 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
7052 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 18),
7053 BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */
7054 BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [14] float */
7055 BTF_DECL_TAG_ENC(NAME_TBD, 13, -1), /* [15] decl_tag */
7056 BTF_DECL_TAG_ENC(NAME_TBD, 13, 1), /* [16] decl_tag */
7057 BTF_DECL_TAG_ENC(NAME_TBD, 7, -1), /* [17] decl_tag */
7058 BTF_TYPE_TAG_ENC(NAME_TBD, 8), /* [18] type_tag */
7059 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8), /* [19] enum64 */
7060 BTF_ENUM64_ENC(NAME_TBD, 0, 0),
7061 BTF_ENUM64_ENC(NAME_TBD, 1, 1),
7062 BTF_END_RAW,
7063 },
7064 BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R\0S\0T\0U"),
7065 },
7066 .expect = {
7067 .raw_types = {
7068 BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 8), /* [1] int */
7069 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 4), /* [2] enum */
7070 BTF_ENUM_ENC(NAME_TBD, 0),
7071 BTF_ENUM_ENC(NAME_TBD, 1),
7072 BTF_FWD_ENC(NAME_TBD, 1 /* union kind_flag */), /* [3] fwd */
7073 BTF_TYPE_ARRAY_ENC(2, 1, 7), /* [4] array */
7074 BTF_STRUCT_ENC(NAME_TBD, 1, 4), /* [5] struct */
7075 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
7076 BTF_UNION_ENC(NAME_TBD, 1, 4), /* [6] union */
7077 BTF_MEMBER_ENC(NAME_TBD, 1, 0),
7078 BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [7] typedef */
7079 BTF_PTR_ENC(0), /* [8] ptr */
7080 BTF_CONST_ENC(8), /* [9] const */
7081 BTF_VOLATILE_ENC(8), /* [10] volatile */
7082 BTF_RESTRICT_ENC(8), /* [11] restrict */
7083 BTF_FUNC_PROTO_ENC(1, 2), /* [12] func_proto */
7084 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
7085 BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 18),
7086 BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */
7087 BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [14] float */
7088 BTF_DECL_TAG_ENC(NAME_TBD, 13, -1), /* [15] decl_tag */
7089 BTF_DECL_TAG_ENC(NAME_TBD, 13, 1), /* [16] decl_tag */
7090 BTF_DECL_TAG_ENC(NAME_TBD, 7, -1), /* [17] decl_tag */
7091 BTF_TYPE_TAG_ENC(NAME_TBD, 8), /* [18] type_tag */
7092 BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8), /* [19] enum64 */
7093 BTF_ENUM64_ENC(NAME_TBD, 0, 0),
7094 BTF_ENUM64_ENC(NAME_TBD, 1, 1),
7095 BTF_END_RAW,
7096 },
7097 BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R\0S\0T\0U"),
7098 },
7099 },
7100 {
7101 .descr = "dedup: no int/float duplicates",
7102 .input = {
7103 .raw_types = {
7104 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 8),
7105 /* different name */
7106 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 8),
7107 /* different encoding */
7108 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_CHAR, 0, 32, 8),
7109 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_BOOL, 0, 32, 8),
7110 /* different bit offset */
7111 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 8, 32, 8),
7112 /* different bit size */
7113 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 27, 8),
7114 /* different byte size */
7115 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4),
7116 /* all allowed sizes */
7117 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 2),
7118 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 4),
7119 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 8),
7120 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 12),
7121 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 16),
7122 BTF_END_RAW,
7123 },
7124 BTF_STR_SEC("\0int\0some other int\0float"),
7125 },
7126 .expect = {
7127 .raw_types = {
7128 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 8),
7129 /* different name */
7130 BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 8),
7131 /* different encoding */
7132 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_CHAR, 0, 32, 8),
7133 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_BOOL, 0, 32, 8),
7134 /* different bit offset */
7135 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 8, 32, 8),
7136 /* different bit size */
7137 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 27, 8),
7138 /* different byte size */
7139 BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4),
7140 /* all allowed sizes */
7141 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 2),
7142 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 4),
7143 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 8),
7144 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 12),
7145 BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 16),
7146 BTF_END_RAW,
7147 },
7148 BTF_STR_SEC("\0int\0some other int\0float"),
7149 },
7150 },
7151 {
7152 .descr = "dedup: enum fwd resolution",
7153 .input = {
7154 .raw_types = {
7155 /* [1] fwd enum 'e1' before full enum */
7156 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4),
7157 /* [2] full enum 'e1' after fwd */
7158 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
7159 BTF_ENUM_ENC(NAME_NTH(2), 123),
7160 /* [3] full enum 'e2' before fwd */
7161 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
7162 BTF_ENUM_ENC(NAME_NTH(4), 456),
7163 /* [4] fwd enum 'e2' after full enum */
7164 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4),
7165 /* [5] incompatible fwd enum with different size */
7166 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 1),
7167 /* [6] incompatible full enum with different value */
7168 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
7169 BTF_ENUM_ENC(NAME_NTH(2), 321),
7170 BTF_END_RAW,
7171 },
7172 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"),
7173 },
7174 .expect = {
7175 .raw_types = {
7176 /* [1] full enum 'e1' */
7177 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
7178 BTF_ENUM_ENC(NAME_NTH(2), 123),
7179 /* [2] full enum 'e2' */
7180 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
7181 BTF_ENUM_ENC(NAME_NTH(4), 456),
7182 /* [3] incompatible fwd enum with different size */
7183 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 1),
7184 /* [4] incompatible full enum with different value */
7185 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
7186 BTF_ENUM_ENC(NAME_NTH(2), 321),
7187 BTF_END_RAW,
7188 },
7189 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"),
7190 },
7191 },
7192 {
7193 .descr = "dedup: datasec and vars pass-through",
7194 .input = {
7195 .raw_types = {
7196 /* int */
7197 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7198 /* static int t */
7199 BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [2] */
7200 /* .bss section */ /* [3] */
7201 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
7202 BTF_VAR_SECINFO_ENC(2, 0, 4),
7203 /* int, referenced from [5] */
7204 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [4] */
7205 /* another static int t */
7206 BTF_VAR_ENC(NAME_NTH(2), 4, 0), /* [5] */
7207 /* another .bss section */ /* [6] */
7208 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
7209 BTF_VAR_SECINFO_ENC(5, 0, 4),
7210 BTF_END_RAW,
7211 },
7212 BTF_STR_SEC("\0.bss\0t"),
7213 },
7214 .expect = {
7215 .raw_types = {
7216 /* int */
7217 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7218 /* static int t */
7219 BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [2] */
7220 /* .bss section */ /* [3] */
7221 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
7222 BTF_VAR_SECINFO_ENC(2, 0, 4),
7223 /* another static int t */
7224 BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [4] */
7225 /* another .bss section */ /* [5] */
7226 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
7227 BTF_VAR_SECINFO_ENC(4, 0, 4),
7228 BTF_END_RAW,
7229 },
7230 BTF_STR_SEC("\0.bss\0t"),
7231 },
7232 .opts = {
7233 .force_collisions = true
7234 },
7235 },
7236 {
7237 .descr = "dedup: func/func_arg/var tags",
7238 .input = {
7239 .raw_types = {
7240 /* int */
7241 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7242 /* static int t */
7243 BTF_VAR_ENC(NAME_NTH(1), 1, 0), /* [2] */
7244 /* void f(int a1, int a2) */
7245 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */
7246 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
7247 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1),
7248 BTF_FUNC_ENC(NAME_NTH(4), 2), /* [4] */
7249 /* tag -> t */
7250 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */
7251 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [6] */
7252 /* tag -> func */
7253 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [7] */
7254 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [8] */
7255 /* tag -> func arg a1 */
7256 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [9] */
7257 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [10] */
7258 BTF_END_RAW,
7259 },
7260 BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"),
7261 },
7262 .expect = {
7263 .raw_types = {
7264 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7265 BTF_VAR_ENC(NAME_NTH(1), 1, 0), /* [2] */
7266 BTF_FUNC_PROTO_ENC(0, 2), /* [3] */
7267 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
7268 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1),
7269 BTF_FUNC_ENC(NAME_NTH(4), 2), /* [4] */
7270 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */
7271 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [6] */
7272 BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [7] */
7273 BTF_END_RAW,
7274 },
7275 BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"),
7276 },
7277 },
7278 {
7279 .descr = "dedup: func/func_param tags",
7280 .input = {
7281 .raw_types = {
7282 /* int */
7283 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7284 /* void f(int a1, int a2) */
7285 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */
7286 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1),
7287 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
7288 BTF_FUNC_ENC(NAME_NTH(3), 2), /* [3] */
7289 /* void f(int a1, int a2) */
7290 BTF_FUNC_PROTO_ENC(0, 2), /* [4] */
7291 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1),
7292 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
7293 BTF_FUNC_ENC(NAME_NTH(3), 4), /* [5] */
7294 /* tag -> f: tag1, tag2 */
7295 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [6] */
7296 BTF_DECL_TAG_ENC(NAME_NTH(5), 3, -1), /* [7] */
7297 /* tag -> f/a2: tag1, tag2 */
7298 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [8] */
7299 BTF_DECL_TAG_ENC(NAME_NTH(5), 3, 1), /* [9] */
7300 /* tag -> f: tag1, tag3 */
7301 BTF_DECL_TAG_ENC(NAME_NTH(4), 5, -1), /* [10] */
7302 BTF_DECL_TAG_ENC(NAME_NTH(6), 5, -1), /* [11] */
7303 /* tag -> f/a2: tag1, tag3 */
7304 BTF_DECL_TAG_ENC(NAME_NTH(4), 5, 1), /* [12] */
7305 BTF_DECL_TAG_ENC(NAME_NTH(6), 5, 1), /* [13] */
7306 BTF_END_RAW,
7307 },
7308 BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"),
7309 },
7310 .expect = {
7311 .raw_types = {
7312 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7313 BTF_FUNC_PROTO_ENC(0, 2), /* [2] */
7314 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1),
7315 BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
7316 BTF_FUNC_ENC(NAME_NTH(3), 2), /* [3] */
7317 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [4] */
7318 BTF_DECL_TAG_ENC(NAME_NTH(5), 3, -1), /* [5] */
7319 BTF_DECL_TAG_ENC(NAME_NTH(6), 3, -1), /* [6] */
7320 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [7] */
7321 BTF_DECL_TAG_ENC(NAME_NTH(5), 3, 1), /* [8] */
7322 BTF_DECL_TAG_ENC(NAME_NTH(6), 3, 1), /* [9] */
7323 BTF_END_RAW,
7324 },
7325 BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"),
7326 },
7327 },
7328 {
7329 .descr = "dedup: struct/struct_member tags",
7330 .input = {
7331 .raw_types = {
7332 /* int */
7333 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7334 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [2] */
7335 BTF_MEMBER_ENC(NAME_NTH(2), 1, 0),
7336 BTF_MEMBER_ENC(NAME_NTH(3), 1, 32),
7337 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [3] */
7338 BTF_MEMBER_ENC(NAME_NTH(2), 1, 0),
7339 BTF_MEMBER_ENC(NAME_NTH(3), 1, 32),
7340 /* tag -> t: tag1, tag2 */
7341 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [4] */
7342 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */
7343 /* tag -> t/m2: tag1, tag2 */
7344 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, 1), /* [6] */
7345 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, 1), /* [7] */
7346 /* tag -> t: tag1, tag3 */
7347 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [8] */
7348 BTF_DECL_TAG_ENC(NAME_NTH(6), 3, -1), /* [9] */
7349 /* tag -> t/m2: tag1, tag3 */
7350 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [10] */
7351 BTF_DECL_TAG_ENC(NAME_NTH(6), 3, 1), /* [11] */
7352 BTF_END_RAW,
7353 },
7354 BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"),
7355 },
7356 .expect = {
7357 .raw_types = {
7358 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7359 BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [2] */
7360 BTF_MEMBER_ENC(NAME_NTH(2), 1, 0),
7361 BTF_MEMBER_ENC(NAME_NTH(3), 1, 32),
7362 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [3] */
7363 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [4] */
7364 BTF_DECL_TAG_ENC(NAME_NTH(6), 2, -1), /* [5] */
7365 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, 1), /* [6] */
7366 BTF_DECL_TAG_ENC(NAME_NTH(5), 2, 1), /* [7] */
7367 BTF_DECL_TAG_ENC(NAME_NTH(6), 2, 1), /* [8] */
7368 BTF_END_RAW,
7369 },
7370 BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"),
7371 },
7372 },
7373 {
7374 .descr = "dedup: typedef tags",
7375 .input = {
7376 .raw_types = {
7377 /* int */
7378 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7379 BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [2] */
7380 BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [3] */
7381 /* tag -> t: tag1, tag2 */
7382 BTF_DECL_TAG_ENC(NAME_NTH(2), 2, -1), /* [4] */
7383 BTF_DECL_TAG_ENC(NAME_NTH(3), 2, -1), /* [5] */
7384 /* tag -> t: tag1, tag3 */
7385 BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [6] */
7386 BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [7] */
7387 BTF_END_RAW,
7388 },
7389 BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"),
7390 },
7391 .expect = {
7392 .raw_types = {
7393 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7394 BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [2] */
7395 BTF_DECL_TAG_ENC(NAME_NTH(2), 2, -1), /* [3] */
7396 BTF_DECL_TAG_ENC(NAME_NTH(3), 2, -1), /* [4] */
7397 BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [5] */
7398 BTF_END_RAW,
7399 },
7400 BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"),
7401 },
7402 },
7403 {
7404 .descr = "dedup: btf_type_tag #1",
7405 .input = {
7406 .raw_types = {
7407 /* ptr -> tag2 -> tag1 -> int */
7408 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7409 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */
7410 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */
7411 BTF_PTR_ENC(3), /* [4] */
7412 /* ptr -> tag2 -> tag1 -> int */
7413 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [5] */
7414 BTF_TYPE_TAG_ENC(NAME_NTH(2), 5), /* [6] */
7415 BTF_PTR_ENC(6), /* [7] */
7416 /* ptr -> tag1 -> int */
7417 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [8] */
7418 BTF_PTR_ENC(8), /* [9] */
7419 BTF_END_RAW,
7420 },
7421 BTF_STR_SEC("\0tag1\0tag2"),
7422 },
7423 .expect = {
7424 .raw_types = {
7425 /* ptr -> tag2 -> tag1 -> int */
7426 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7427 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */
7428 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */
7429 BTF_PTR_ENC(3), /* [4] */
7430 /* ptr -> tag1 -> int */
7431 BTF_PTR_ENC(2), /* [5] */
7432 BTF_END_RAW,
7433 },
7434 BTF_STR_SEC("\0tag1\0tag2"),
7435 },
7436 },
7437 {
7438 .descr = "dedup: btf_type_tag #2",
7439 .input = {
7440 .raw_types = {
7441 /* ptr -> tag2 -> tag1 -> int */
7442 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7443 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */
7444 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */
7445 BTF_PTR_ENC(3), /* [4] */
7446 /* ptr -> tag2 -> int */
7447 BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */
7448 BTF_PTR_ENC(5), /* [6] */
7449 BTF_END_RAW,
7450 },
7451 BTF_STR_SEC("\0tag1\0tag2"),
7452 },
7453 .expect = {
7454 .raw_types = {
7455 /* ptr -> tag2 -> tag1 -> int */
7456 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7457 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */
7458 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */
7459 BTF_PTR_ENC(3), /* [4] */
7460 /* ptr -> tag2 -> int */
7461 BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */
7462 BTF_PTR_ENC(5), /* [6] */
7463 BTF_END_RAW,
7464 },
7465 BTF_STR_SEC("\0tag1\0tag2"),
7466 },
7467 },
7468 {
7469 .descr = "dedup: btf_type_tag #3",
7470 .input = {
7471 .raw_types = {
7472 /* ptr -> tag2 -> tag1 -> int */
7473 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7474 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */
7475 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */
7476 BTF_PTR_ENC(3), /* [4] */
7477 /* ptr -> tag1 -> tag2 -> int */
7478 BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */
7479 BTF_TYPE_TAG_ENC(NAME_NTH(1), 5), /* [6] */
7480 BTF_PTR_ENC(6), /* [7] */
7481 BTF_END_RAW,
7482 },
7483 BTF_STR_SEC("\0tag1\0tag2"),
7484 },
7485 .expect = {
7486 .raw_types = {
7487 /* ptr -> tag2 -> tag1 -> int */
7488 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7489 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */
7490 BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */
7491 BTF_PTR_ENC(3), /* [4] */
7492 /* ptr -> tag1 -> tag2 -> int */
7493 BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */
7494 BTF_TYPE_TAG_ENC(NAME_NTH(1), 5), /* [6] */
7495 BTF_PTR_ENC(6), /* [7] */
7496 BTF_END_RAW,
7497 },
7498 BTF_STR_SEC("\0tag1\0tag2"),
7499 },
7500 },
7501 {
7502 .descr = "dedup: btf_type_tag #4",
7503 .input = {
7504 .raw_types = {
7505 /* ptr -> tag1 -> int */
7506 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7507 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */
7508 BTF_PTR_ENC(2), /* [3] */
7509 /* ptr -> tag1 -> long */
7510 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8), /* [4] */
7511 BTF_TYPE_TAG_ENC(NAME_NTH(1), 4), /* [5] */
7512 BTF_PTR_ENC(5), /* [6] */
7513 BTF_END_RAW,
7514 },
7515 BTF_STR_SEC("\0tag1"),
7516 },
7517 .expect = {
7518 .raw_types = {
7519 /* ptr -> tag1 -> int */
7520 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7521 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */
7522 BTF_PTR_ENC(2), /* [3] */
7523 /* ptr -> tag1 -> long */
7524 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8), /* [4] */
7525 BTF_TYPE_TAG_ENC(NAME_NTH(1), 4), /* [5] */
7526 BTF_PTR_ENC(5), /* [6] */
7527 BTF_END_RAW,
7528 },
7529 BTF_STR_SEC("\0tag1"),
7530 },
7531 },
7532 {
7533 .descr = "dedup: btf_type_tag #5, struct",
7534 .input = {
7535 .raw_types = {
7536 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7537 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */
7538 BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4), /* [3] */
7539 BTF_MEMBER_ENC(NAME_NTH(3), 2, BTF_MEMBER_OFFSET(0, 0)),
7540 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [4] */
7541 BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4), /* [5] */
7542 BTF_MEMBER_ENC(NAME_NTH(3), 4, BTF_MEMBER_OFFSET(0, 0)),
7543 BTF_END_RAW,
7544 },
7545 BTF_STR_SEC("\0tag1\0t\0m"),
7546 },
7547 .expect = {
7548 .raw_types = {
7549 BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
7550 BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */
7551 BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4), /* [3] */
7552 BTF_MEMBER_ENC(NAME_NTH(3), 2, BTF_MEMBER_OFFSET(0, 0)),
7553 BTF_END_RAW,
7554 },
7555 BTF_STR_SEC("\0tag1\0t\0m"),
7556 },
7557 },
7558 {
7559 .descr = "dedup: enum64, standalone",
7560 .input = {
7561 .raw_types = {
7562 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
7563 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
7564 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
7565 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
7566 BTF_END_RAW,
7567 },
7568 BTF_STR_SEC("\0e1\0e1_val"),
7569 },
7570 .expect = {
7571 .raw_types = {
7572 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
7573 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
7574 BTF_END_RAW,
7575 },
7576 BTF_STR_SEC("\0e1\0e1_val"),
7577 },
7578 },
7579 {
7580 .descr = "dedup: enum64, fwd resolution",
7581 .input = {
7582 .raw_types = {
7583 /* [1] fwd enum64 'e1' before full enum */
7584 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8),
7585 /* [2] full enum64 'e1' after fwd */
7586 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
7587 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
7588 /* [3] full enum64 'e2' before fwd */
7589 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
7590 BTF_ENUM64_ENC(NAME_NTH(4), 0, 456),
7591 /* [4] fwd enum64 'e2' after full enum */
7592 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8),
7593 /* [5] incompatible full enum64 with different value */
7594 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
7595 BTF_ENUM64_ENC(NAME_NTH(2), 0, 321),
7596 BTF_END_RAW,
7597 },
7598 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"),
7599 },
7600 .expect = {
7601 .raw_types = {
7602 /* [1] full enum64 'e1' */
7603 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
7604 BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
7605 /* [2] full enum64 'e2' */
7606 BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
7607 BTF_ENUM64_ENC(NAME_NTH(4), 0, 456),
7608 /* [3] incompatible full enum64 with different value */
7609 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
7610 BTF_ENUM64_ENC(NAME_NTH(2), 0, 321),
7611 BTF_END_RAW,
7612 },
7613 BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"),
7614 },
7615 },
7616 {
7617 .descr = "dedup: enum and enum64, no dedup",
7618 .input = {
7619 .raw_types = {
7620 /* [1] enum 'e1' */
7621 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
7622 BTF_ENUM_ENC(NAME_NTH(2), 1),
7623 /* [2] enum64 'e1' */
7624 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 4),
7625 BTF_ENUM64_ENC(NAME_NTH(2), 1, 0),
7626 BTF_END_RAW,
7627 },
7628 BTF_STR_SEC("\0e1\0e1_val"),
7629 },
7630 .expect = {
7631 .raw_types = {
7632 /* [1] enum 'e1' */
7633 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
7634 BTF_ENUM_ENC(NAME_NTH(2), 1),
7635 /* [2] enum64 'e1' */
7636 BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 4),
7637 BTF_ENUM64_ENC(NAME_NTH(2), 1, 0),
7638 BTF_END_RAW,
7639 },
7640 BTF_STR_SEC("\0e1\0e1_val"),
7641 },
7642 },
7643
7644 };
7645
btf_type_size(const struct btf_type * t)7646 static int btf_type_size(const struct btf_type *t)
7647 {
7648 int base_size = sizeof(struct btf_type);
7649 __u16 vlen = BTF_INFO_VLEN(t->info);
7650 __u16 kind = BTF_INFO_KIND(t->info);
7651
7652 switch (kind) {
7653 case BTF_KIND_FWD:
7654 case BTF_KIND_CONST:
7655 case BTF_KIND_VOLATILE:
7656 case BTF_KIND_RESTRICT:
7657 case BTF_KIND_PTR:
7658 case BTF_KIND_TYPEDEF:
7659 case BTF_KIND_FUNC:
7660 case BTF_KIND_FLOAT:
7661 case BTF_KIND_TYPE_TAG:
7662 return base_size;
7663 case BTF_KIND_INT:
7664 return base_size + sizeof(__u32);
7665 case BTF_KIND_ENUM:
7666 return base_size + vlen * sizeof(struct btf_enum);
7667 case BTF_KIND_ENUM64:
7668 return base_size + vlen * sizeof(struct btf_enum64);
7669 case BTF_KIND_ARRAY:
7670 return base_size + sizeof(struct btf_array);
7671 case BTF_KIND_STRUCT:
7672 case BTF_KIND_UNION:
7673 return base_size + vlen * sizeof(struct btf_member);
7674 case BTF_KIND_FUNC_PROTO:
7675 return base_size + vlen * sizeof(struct btf_param);
7676 case BTF_KIND_VAR:
7677 return base_size + sizeof(struct btf_var);
7678 case BTF_KIND_DATASEC:
7679 return base_size + vlen * sizeof(struct btf_var_secinfo);
7680 case BTF_KIND_DECL_TAG:
7681 return base_size + sizeof(struct btf_decl_tag);
7682 default:
7683 fprintf(stderr, "Unsupported BTF_KIND:%u\n", kind);
7684 return -EINVAL;
7685 }
7686 }
7687
dump_btf_strings(const char * strs,__u32 len)7688 static void dump_btf_strings(const char *strs, __u32 len)
7689 {
7690 const char *cur = strs;
7691 int i = 0;
7692
7693 while (cur < strs + len) {
7694 fprintf(stderr, "string #%d: '%s'\n", i, cur);
7695 cur += strlen(cur) + 1;
7696 i++;
7697 }
7698 }
7699
do_test_dedup(unsigned int test_num)7700 static void do_test_dedup(unsigned int test_num)
7701 {
7702 struct btf_dedup_test *test = &dedup_tests[test_num - 1];
7703 __u32 test_nr_types, expect_nr_types, test_btf_size, expect_btf_size;
7704 const struct btf_header *test_hdr, *expect_hdr;
7705 struct btf *test_btf = NULL, *expect_btf = NULL;
7706 const void *test_btf_data, *expect_btf_data;
7707 const char *ret_test_next_str, *ret_expect_next_str;
7708 const char *test_strs, *expect_strs;
7709 const char *test_str_cur;
7710 const char *expect_str_cur, *expect_str_end;
7711 unsigned int raw_btf_size;
7712 void *raw_btf;
7713 int err = 0, i;
7714
7715 if (!test__start_subtest(test->descr))
7716 return;
7717
7718 raw_btf = btf_raw_create(&hdr_tmpl, test->input.raw_types,
7719 test->input.str_sec, test->input.str_sec_size,
7720 &raw_btf_size, &ret_test_next_str);
7721 if (!raw_btf)
7722 return;
7723
7724 test_btf = btf__new((__u8 *)raw_btf, raw_btf_size);
7725 err = libbpf_get_error(test_btf);
7726 free(raw_btf);
7727 if (CHECK(err, "invalid test_btf errno:%d", err)) {
7728 err = -1;
7729 goto done;
7730 }
7731
7732 raw_btf = btf_raw_create(&hdr_tmpl, test->expect.raw_types,
7733 test->expect.str_sec,
7734 test->expect.str_sec_size,
7735 &raw_btf_size, &ret_expect_next_str);
7736 if (!raw_btf)
7737 return;
7738 expect_btf = btf__new((__u8 *)raw_btf, raw_btf_size);
7739 err = libbpf_get_error(expect_btf);
7740 free(raw_btf);
7741 if (CHECK(err, "invalid expect_btf errno:%d", err)) {
7742 err = -1;
7743 goto done;
7744 }
7745
7746 test->opts.sz = sizeof(test->opts);
7747 err = btf__dedup(test_btf, &test->opts);
7748 if (CHECK(err, "btf_dedup failed errno:%d", err)) {
7749 err = -1;
7750 goto done;
7751 }
7752
7753 test_btf_data = btf__raw_data(test_btf, &test_btf_size);
7754 expect_btf_data = btf__raw_data(expect_btf, &expect_btf_size);
7755 if (CHECK(test_btf_size != expect_btf_size,
7756 "test_btf_size:%u != expect_btf_size:%u",
7757 test_btf_size, expect_btf_size)) {
7758 err = -1;
7759 goto done;
7760 }
7761
7762 test_hdr = test_btf_data;
7763 test_strs = test_btf_data + sizeof(*test_hdr) + test_hdr->str_off;
7764 expect_hdr = expect_btf_data;
7765 expect_strs = expect_btf_data + sizeof(*test_hdr) + expect_hdr->str_off;
7766 if (CHECK(test_hdr->str_len != expect_hdr->str_len,
7767 "test_hdr->str_len:%u != expect_hdr->str_len:%u",
7768 test_hdr->str_len, expect_hdr->str_len)) {
7769 fprintf(stderr, "\ntest strings:\n");
7770 dump_btf_strings(test_strs, test_hdr->str_len);
7771 fprintf(stderr, "\nexpected strings:\n");
7772 dump_btf_strings(expect_strs, expect_hdr->str_len);
7773 err = -1;
7774 goto done;
7775 }
7776
7777 expect_str_cur = expect_strs;
7778 expect_str_end = expect_strs + expect_hdr->str_len;
7779 while (expect_str_cur < expect_str_end) {
7780 size_t test_len, expect_len;
7781 int off;
7782
7783 off = btf__find_str(test_btf, expect_str_cur);
7784 if (CHECK(off < 0, "exp str '%s' not found: %d\n", expect_str_cur, off)) {
7785 err = -1;
7786 goto done;
7787 }
7788 test_str_cur = btf__str_by_offset(test_btf, off);
7789
7790 test_len = strlen(test_str_cur);
7791 expect_len = strlen(expect_str_cur);
7792 if (CHECK(test_len != expect_len,
7793 "test_len:%zu != expect_len:%zu "
7794 "(test_str:%s, expect_str:%s)",
7795 test_len, expect_len, test_str_cur, expect_str_cur)) {
7796 err = -1;
7797 goto done;
7798 }
7799 if (CHECK(strcmp(test_str_cur, expect_str_cur),
7800 "test_str:%s != expect_str:%s",
7801 test_str_cur, expect_str_cur)) {
7802 err = -1;
7803 goto done;
7804 }
7805 expect_str_cur += expect_len + 1;
7806 }
7807
7808 test_nr_types = btf__type_cnt(test_btf);
7809 expect_nr_types = btf__type_cnt(expect_btf);
7810 if (CHECK(test_nr_types != expect_nr_types,
7811 "test_nr_types:%u != expect_nr_types:%u",
7812 test_nr_types, expect_nr_types)) {
7813 err = -1;
7814 goto done;
7815 }
7816
7817 for (i = 1; i < test_nr_types; i++) {
7818 const struct btf_type *test_type, *expect_type;
7819 int test_size, expect_size;
7820
7821 test_type = btf__type_by_id(test_btf, i);
7822 expect_type = btf__type_by_id(expect_btf, i);
7823 test_size = btf_type_size(test_type);
7824 expect_size = btf_type_size(expect_type);
7825
7826 if (CHECK(test_size != expect_size,
7827 "type #%d: test_size:%d != expect_size:%u",
7828 i, test_size, expect_size)) {
7829 err = -1;
7830 goto done;
7831 }
7832 if (CHECK(btf_kind(test_type) != btf_kind(expect_type),
7833 "type %d kind: exp %d != got %u\n",
7834 i, btf_kind(expect_type), btf_kind(test_type))) {
7835 err = -1;
7836 goto done;
7837 }
7838 if (CHECK(test_type->info != expect_type->info,
7839 "type %d info: exp %d != got %u\n",
7840 i, expect_type->info, test_type->info)) {
7841 err = -1;
7842 goto done;
7843 }
7844 if (CHECK(test_type->size != expect_type->size,
7845 "type %d size/type: exp %d != got %u\n",
7846 i, expect_type->size, test_type->size)) {
7847 err = -1;
7848 goto done;
7849 }
7850 }
7851
7852 done:
7853 btf__free(test_btf);
7854 btf__free(expect_btf);
7855 }
7856
test_btf(void)7857 void test_btf(void)
7858 {
7859 int i;
7860
7861 always_log = env.verbosity > VERBOSE_NONE;
7862
7863 for (i = 1; i <= ARRAY_SIZE(raw_tests); i++)
7864 do_test_raw(i);
7865 for (i = 1; i <= ARRAY_SIZE(get_info_tests); i++)
7866 do_test_get_info(i);
7867 for (i = 1; i <= ARRAY_SIZE(file_tests); i++)
7868 do_test_file(i);
7869 for (i = 1; i <= ARRAY_SIZE(info_raw_tests); i++)
7870 do_test_info_raw(i);
7871 for (i = 1; i <= ARRAY_SIZE(dedup_tests); i++)
7872 do_test_dedup(i);
7873 test_pprint();
7874 }
7875