1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */ |
3 | |
4 | #include <linux/bpf.h> |
5 | #include <stdint.h> |
6 | #include <stdbool.h> |
7 | #include <bpf/bpf_helpers.h> |
8 | #include <bpf/bpf_core_read.h> |
9 | |
10 | char _license[] SEC("license" ) = "GPL" ; |
11 | |
12 | struct { |
13 | char in[256]; |
14 | char out[256]; |
15 | bool skip; |
16 | } data = {}; |
17 | |
18 | enum named_unsigned_enum64 { |
19 | UNSIGNED_ENUM64_VAL1 = 0x1ffffffffULL, |
20 | UNSIGNED_ENUM64_VAL2 = 0x2ffffffffULL, |
21 | UNSIGNED_ENUM64_VAL3 = 0x3ffffffffULL, |
22 | }; |
23 | |
24 | enum named_signed_enum64 { |
25 | SIGNED_ENUM64_VAL1 = 0x1ffffffffLL, |
26 | SIGNED_ENUM64_VAL2 = -2, |
27 | SIGNED_ENUM64_VAL3 = 0x3ffffffffLL, |
28 | }; |
29 | |
30 | struct core_reloc_enum64val_output { |
31 | bool unsigned_val1_exists; |
32 | bool unsigned_val2_exists; |
33 | bool unsigned_val3_exists; |
34 | bool signed_val1_exists; |
35 | bool signed_val2_exists; |
36 | bool signed_val3_exists; |
37 | |
38 | long unsigned_val1; |
39 | long unsigned_val2; |
40 | long signed_val1; |
41 | long signed_val2; |
42 | }; |
43 | |
44 | SEC("raw_tracepoint/sys_enter" ) |
45 | int test_core_enum64val(void *ctx) |
46 | { |
47 | #if __clang_major__ >= 15 |
48 | struct core_reloc_enum64val_output *out = (void *)&data.out; |
49 | enum named_unsigned_enum64 named_unsigned = 0; |
50 | enum named_signed_enum64 named_signed = 0; |
51 | |
52 | out->unsigned_val1_exists = bpf_core_enum_value_exists(named_unsigned, UNSIGNED_ENUM64_VAL1); |
53 | out->unsigned_val2_exists = bpf_core_enum_value_exists(enum named_unsigned_enum64, UNSIGNED_ENUM64_VAL2); |
54 | out->unsigned_val3_exists = bpf_core_enum_value_exists(enum named_unsigned_enum64, UNSIGNED_ENUM64_VAL3); |
55 | out->signed_val1_exists = bpf_core_enum_value_exists(named_signed, SIGNED_ENUM64_VAL1); |
56 | out->signed_val2_exists = bpf_core_enum_value_exists(enum named_signed_enum64, SIGNED_ENUM64_VAL2); |
57 | out->signed_val3_exists = bpf_core_enum_value_exists(enum named_signed_enum64, SIGNED_ENUM64_VAL3); |
58 | |
59 | out->unsigned_val1 = bpf_core_enum_value(named_unsigned, UNSIGNED_ENUM64_VAL1); |
60 | out->unsigned_val2 = bpf_core_enum_value(named_unsigned, UNSIGNED_ENUM64_VAL2); |
61 | out->signed_val1 = bpf_core_enum_value(named_signed, SIGNED_ENUM64_VAL1); |
62 | out->signed_val2 = bpf_core_enum_value(named_signed, SIGNED_ENUM64_VAL2); |
63 | /* NAMED_ENUM64_VAL3 value is optional */ |
64 | |
65 | #else |
66 | data.skip = true; |
67 | #endif |
68 | |
69 | return 0; |
70 | } |
71 | |