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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
| commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
| tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /tools/testing/selftests/bpf/bpf_legacy.h | |
| parent | Initial commit. (diff) | |
| download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip | |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/bpf/bpf_legacy.h')
| -rw-r--r-- | tools/testing/selftests/bpf/bpf_legacy.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/bpf_legacy.h b/tools/testing/selftests/bpf/bpf_legacy.h new file mode 100644 index 0000000000..bc4555a003 --- /dev/null +++ b/tools/testing/selftests/bpf/bpf_legacy.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ +#ifndef __BPF_LEGACY__ +#define __BPF_LEGACY__ + +#if __GNUC__ && !__clang__ +/* Functions to emit BPF_LD_ABS and BPF_LD_IND instructions. We + * provide the "standard" names as synonyms of the corresponding GCC + * builtins. Note how the SKB argument is ignored. + */ +#define load_byte(skb, off) __builtin_bpf_load_byte(off) +#define load_half(skb, off) __builtin_bpf_load_half(off) +#define load_word(skb, off) __builtin_bpf_load_word(off) +#else +/* llvm builtin functions that eBPF C program may use to + * emit BPF_LD_ABS and BPF_LD_IND instructions + */ +unsigned long long load_byte(void *skb, unsigned long long off) asm("llvm.bpf.load.byte"); +unsigned long long load_half(void *skb, unsigned long long off) asm("llvm.bpf.load.half"); +unsigned long long load_word(void *skb, unsigned long long off) asm("llvm.bpf.load.word"); +#endif + +#endif + |