Re: [PATCH v3 3/4] bpftool: add support for ints larger than 128 bits

[Andrii Nakryiko]

On Tue, Jan 5, 2021 at 6:45 AM Sean Young <sean@xxxxxxxx> wrote:
>
> clang supports arbitrary length ints using the _ExtInt extension. This
> can be useful to hold very large values, e.g. 256 bit or 512 bit types.
>
> This requires the _ExtInt extension enabled in clang, which is under
> review.
>
> Link: https://clang.llvm.org/docs/LanguageExtensions.html#extended-integer-types
> Link: https://reviews.llvm.org/D93103
>
> Signed-off-by: Sean Young <sean@xxxxxxxx>
> ---

all the same comments as in patch #1

>  tools/bpf/bpftool/btf_dumper.c | 40 ++++++++++++++++++++++++++++++++++
>  1 file changed, 40 insertions(+)
>
> diff --git a/tools/bpf/bpftool/btf_dumper.c b/tools/bpf/bpftool/btf_dumper.c
> index 0e9310727281..8b5318ec5c26 100644
> --- a/tools/bpf/bpftool/btf_dumper.c
> +++ b/tools/bpf/bpftool/btf_dumper.c
> @@ -271,6 +271,41 @@ static void btf_int128_print(json_writer_t *jw, const void *data,
>         }
>  }

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