| 1 | // SPDX-License-Identifier: GPL-2.0 |
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| 2 | // Copyright (c) 2019 Facebook |
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| 3 | |
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| 4 | #include <linux/bpf.h> |
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| 5 | #include <stdint.h> |
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| 6 | #include <bpf/bpf_helpers.h> |
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| 7 | #include <bpf/bpf_core_read.h> |
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| 8 | |
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| 9 | char _license[] SEC("license" ) = "GPL" ; |
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| 10 | |
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| 11 | struct { |
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| 12 | char in[256]; |
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| 13 | char out[256]; |
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| 14 | } data = {}; |
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| 15 | |
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| 16 | enum core_reloc_primitives_enum { |
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| 17 | A = 0, |
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| 18 | B = 1, |
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| 19 | }; |
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| 20 | |
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| 21 | struct core_reloc_primitives { |
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| 22 | char a; |
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| 23 | int b; |
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| 24 | enum core_reloc_primitives_enum c; |
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| 25 | void *d; |
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| 26 | int (*f)(const char *); |
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| 27 | }; |
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| 28 | |
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| 29 | #define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src) |
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| 30 | |
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| 31 | SEC("raw_tracepoint/sys_enter" ) |
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| 32 | int test_core_primitives(void *ctx) |
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| 33 | { |
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| 34 | struct core_reloc_primitives *in = (void *)&data.in; |
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| 35 | struct core_reloc_primitives *out = (void *)&data.out; |
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| 36 | |
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| 37 | if (CORE_READ(&out->a, &in->a) || |
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| 38 | CORE_READ(&out->b, &in->b) || |
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| 39 | CORE_READ(&out->c, &in->c) || |
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| 40 | CORE_READ(&out->d, &in->d) || |
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| 41 | CORE_READ(&out->f, &in->f)) |
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| 42 | return 1; |
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| 43 | |
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| 44 | return 0; |
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| 45 | } |
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| 46 | |
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| 47 | |
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