linux-master/lib/test_bpf.c

38 /* Redefine REGs to make tests less verbose */
84 	int stack_depth; /* for eBPF only, since tests don't call verifier */
476  * Branch conversion tests. Complex operations can expand to a lot
542 /* ALU result computation used in tests */
811  * tests. The block size parameters can be adjusted to increase/reduce the
895  * Block size parameters used in pattern tests below. une as needed to
911  * Exhaustive tests of ALU operations for all combinations of power-of-two
1590  * Exhaustive tests of atomic operations for all power-of-two operand
2027 /* 64-bit atomic register tests */
2078 /* 32-bit atomic register tests */
2140 	int block = 64; /* Increase for more tests per MSB position */
2267  * Exhaustive tests of JMP operations for all combinations of power-of-two
2418 /* JMP immediate tests */
2474 /* JMP32 immediate tests */
2530 /* JMP register tests */
2586 /* JMP32 register tests */
2644  * increasing offset. This tests the conversion of relative jumps to
3063 static struct bpf_test tests[] = {
8938 	 * Exhaustive tests of atomic operation variants.
8939 	 * Individual tests are expanded from template macros for all
10903 		 * this tests that the JIT/interpreter correctly resets X
11903 	 * Register (non-)clobbering tests for the case where a JIT implements
11907 	 * The following tests check that the eBPF registers retain their
14767 	if (tests[which].fill_helper)
14768 		return tests[which].u.ptr.len;
14770 	fp = tests[which].u.insns;
14780 	if (tests[which].fill_helper)
14781 		return tests[which].u.ptr.insns;
14783 		return tests[which].u.insns;
14788 	__u8 test_type = tests[which].aux & TEST_TYPE_MASK;
14800 		if (tests[which].aux & FLAG_EXPECTED_FAIL) {
14801 			if (*err == tests[which].expected_errcode) {
14834 		fp->aux->stack_depth = tests[which].stack_depth;
14835 		fp->aux->verifier_zext = !!(tests[which].aux &
14855 	__u8 test_type = tests[which].aux & TEST_TYPE_MASK;
14901 		 * NOTE: Several sub-tests may be present, in which case
15139 	for (i = 0; i < ARRAY_SIZE(tests); i++) {
15147 		pr_info("#%d %s ", i, tests[i].descr);
15149 		if (tests[i].fill_helper &&
15150 		    tests[i].fill_helper(&tests[i]) < 0) {
15157 		if (tests[i].fill_helper) {
15158 			kfree(tests[i].u.ptr.insns);
15159 			tests[i].u.ptr.insns = NULL;
15177 		err = run_one(fp, &tests[i]);
15251  * Tail call tests. Each test case may call any other test in the table,
15570 		for (i = 0; i < ARRAY_SIZE(tests); i++) {
15571 			if (!strcmp(tests[i].descr, test_name))
15598 		valid_range = ARRAY_SIZE(tests);