On Wed, Nov 04, 2020 at 11:10:51AM -0800, Nick Desaulniers wrote:
> bpftrace parses the kernel headers and uses Clang under the hood. Remove
> the version check when __BPF_TRACING__ is defined (as bpftrace does) so
> that this tool can continue to parse kernel headers, even with older
> clang sources.
>
> Cc: <sta...@vger.kernel.org>
> Fixes: commit 1f7a44f63e6c ("compiler-clang: add build check for clang
> 10.0.1")
> Reported-by: Chen Yu <yu.chen.s...@gmail.com>
> Reported-by: Jarkko Sakkinen <jar...@kernel.org>
> Signed-off-by: Nick Desaulniers <ndesaulni...@google.com>
Acked-by: Nathan Chancellor <natechancel...@gmail.com>
> ---
> include/linux/compiler-clang.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
> index dd7233c48bf3..98cff1b4b088 100644
> --- a/include/linux/compiler-clang.h
> +++ b/include/linux/compiler-clang.h
> @@ -8,8 +8,10 @@
> + __clang_patchlevel__)
>
> #if CLANG_VERSION < 100001
> +#ifndef __BPF_TRACING__
> # error Sorry, your version of Clang is too old - please use 10.0.1 or newer.
> #endif
> +#endif
>
> /* Compiler specific definitions for Clang compiler */
>
> --
> 2.29.1.341.ge80a0c044ae-goog
>
