linux-kernel - Re: [PATCH 01/45] Makefile: propagate verbose options

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Message-Id: <20150217161810.A3B9.AA925319@jp.panasonic.com>
Date:	Tue, 17 Feb 2015 16:18:12 +0900
From:	Masahiro Yamada <yamada.m@...panasonic.com>
To:	Mikko Rapeli <mikko.rapeli@....fi>
Cc:	linux-kernel@...r.kernel.org, Michal Marek <mmarek@...e.cz>,
	linux-kbuild@...r.kernel.org
Subject: Re: [PATCH 01/45] Makefile: propagate verbose options

Hi Mikko,

On Tue, 17 Feb 2015 00:05:04 +0100
Mikko Rapeli <mikko.rapeli@....fi> wrote:

> Usefull when debugging the make scripts.
> 
> Signed-off-by: Mikko Rapeli <mikko.rapeli@....fi>
> ---
>  Makefile | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 4e93284..c1b515d 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -912,13 +912,13 @@ quiet_cmd_link-vmlinux = LINK    $@
>  # execute if the rest of the kernel build went well.
>  vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE
>  ifdef CONFIG_HEADERS_CHECK
> -	$(Q)$(MAKE) -f $(srctree)/Makefile headers_check
> +	$(Q)$(MAKE) V=$(KBUILD_VERBOSE) -f $(srctree)/Makefile headers_check
>  endif
>  ifdef CONFIG_SAMPLES
> -	$(Q)$(MAKE) $(build)=samples
> +	$(Q)$(MAKE) V=$(KBUILD_VERBOSE) $(build)=samples
>  endif
>  ifdef CONFIG_BUILD_DOCSRC
> -	$(Q)$(MAKE) $(build)=Documentation
> +	$(Q)$(MAKE) V=$(KBUILD_VERBOSE) $(build)=Documentation
>  endif
>  	+$(call if_changed,link-vmlinux)
>  
> @@ -1069,7 +1069,7 @@ headers_check_all: headers_install_all
>  PHONY += headers_check
>  headers_check: headers_install
>  	$(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
> -	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1
> +	$(Q)$(MAKE) V=$(KBUILD_VERBOSE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1
>  
>  # ---------------------------------------------------------------------------
>  # Kernel selftest



If you give V=... from the command line, it is automatically propagated
to its sub-makes.

I think this patch has no point.


Best Regards
Masahiro Yamada

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