Re: [PATCH v3 2/2] bpf: makefiles: do not generate empty vmlinux.h

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2022-12-18 06:35 UTC+0800 ~ Changbin Du <changbin.du@xxxxxxxxx>
> Remove the empty vmlinux.h if bpftool failed to dump btf info.
> The empty vmlinux.h can hide real error when reading output
> of make.
> 
> This is done by adding .DELETE_ON_ERROR special target in related
> makefiles.
> 
> Signed-off-by: Changbin Du <changbin.du@xxxxxxxxx>
> ---
>  tools/bpf/bpftool/Makefile           | 3 +++
>  tools/testing/selftests/bpf/Makefile | 3 +++
>  2 files changed, 6 insertions(+)
> 
> diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
> index 787b857d3fb5..313fd1b09189 100644
> --- a/tools/bpf/bpftool/Makefile
> +++ b/tools/bpf/bpftool/Makefile
> @@ -289,3 +289,6 @@ FORCE:
>  .PHONY: all FORCE bootstrap clean install-bin install uninstall
>  .PHONY: doc doc-clean doc-install doc-uninstall
>  .DEFAULT_GOAL := all
> +
> +# Delete partially updated (corrupted) files on error
> +.DELETE_ON_ERROR:

Acked-by: Quentin Monnet <quentin@xxxxxxxxxxxxx>

Thanks!




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