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1bc38b8ff6
libbpf is maturing as a library and gaining features that no other bpf libraries support (BPF Type Format, bpf to bpf calls, etc) Many Apache2 licensed projects (like bcc, bpftrace, gobpf, cilium, etc) would like to use libbpf, but cannot do this yet, since Apache Foundation explicitly states that LGPL is incompatible with Apache2. Hence let's relicense libbpf as dual license LGPL-2.1 or BSD-2-Clause, since BSD-2 is compatible with Apache2. Dual LGPL or Apache2 is invalid combination. Fix license mistake in Makefile as well. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrey Ignatov <rdna@fb.com> Acked-by: Arnaldo Carvalho de Melo <acme@kernel.org> Acked-by: Björn Töpel <bjorn.topel@intel.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: David Beckett <david.beckett@netronome.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Joe Stringer <joe@ovn.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Thomas Graf <tgraf@suug.ch> Acked-by: Roman Gushchin <guro@fb.com> Acked-by: Wang Nan <wangnan0@huawei.com> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
27 lines
820 B
C
27 lines
820 B
C
/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
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/* Copyright (c) 2018 Facebook */
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#ifndef __LIBBPF_BTF_H
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#define __LIBBPF_BTF_H
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#include <linux/types.h>
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#define BTF_ELF_SEC ".BTF"
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struct btf;
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struct btf_type;
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typedef int (*btf_print_fn_t)(const char *, ...)
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__attribute__((format(printf, 1, 2)));
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void btf__free(struct btf *btf);
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struct btf *btf__new(__u8 *data, __u32 size, btf_print_fn_t err_log);
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__s32 btf__find_by_name(const struct btf *btf, const char *type_name);
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const struct btf_type *btf__type_by_id(const struct btf *btf, __u32 id);
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__s64 btf__resolve_size(const struct btf *btf, __u32 type_id);
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int btf__resolve_type(const struct btf *btf, __u32 type_id);
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int btf__fd(const struct btf *btf);
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const char *btf__name_by_offset(const struct btf *btf, __u32 offset);
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#endif /* __LIBBPF_BTF_H */
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