libbpf: Add enum64 parsing and new enum64 public API

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Add enum64 parsing support and two new enum64 public APIs:
  btf__add_enum64
  btf__add_enum64_value

Also add support of signedness for BTF_KIND_ENUM. The
BTF_KIND_ENUM API signatures are not changed. The signedness
will be changed from unsigned to signed if btf__add_enum_value()
finds any negative values.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220607062621.3719391-1-yhs@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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This commit is contained in:

Yonghong Song 2022-06-06 23:26:21 -07:00 • committed by Alexei Starovoitov

parent 8479aa7522

commit dffbbdc2d9

3 changed files with 117 additions and 0 deletions

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103

tools/lib/bpf/btf.c

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12

tools/lib/bpf/btf.h

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2

tools/lib/bpf/libbpf.map

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