linux-kernel - Re: [PATCH] h8300: Don't set CROSS

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Date:	Wed, 21 Oct 2015 23:55:09 +0900
From:	Yoshinori Sato <ysato@...rs.sourceforge.jp>
To:	Javier Martinez Canillas <javier@....samsung.com>
Cc:	linux-kernel@...r.kernel.org, uclinux-h8-devel@...ts.sourceforge.jp
Subject: Re: [PATCH] h8300: Don't set CROSS_COMPILE unconditionally

On Fri, 16 Oct 2015 20:31:27 +0900,
Javier Martinez Canillas wrote:
> 
> The h8300 architecture Makefile sets the CROSS_COMPILE variable to
> "h8300-unknown-linux-" unconditionally but doing that prevents the
> variable to be used if a toolchain with a different binary name is
> installed in the machine.
> 
> So only set CROSS_COMPILE to that default if the variable has not
> been set by the user before.
> 
> Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
> 
> ---
> 
> Hello,
> 
> After $SUBJECT, I'm able to build using the toolchain installed by
> my Linux distribution but the linker gives me an error about an
> unrecognised emulation mode:
> 
> h8300-linux-gnu-ld: unrecognised emulation mode: h8300helf_linux
> 
> I see that h8300helf_linux and 8300self_linux are hardcoded in the
> Makefile as well and these are not listed as supported emulations:
>
> Supported emulations: h8300elf h8300helf h8300self h8300hnelf h8300snelf h8300sxelf h8300sxnelf
> 
> I tried changing -mh8300helf_linux for -mh8300helf that is listed
> as a supported emulation but then I got the following error:
> 
> h8300-linux-gnu-ld: cannot open linker script file ldscripts/h8300helf.xr: No such file or directory
>

h8300-linux is alias of h8300-*-elf.
kernel building toolchain is h8300-*-linux.

h8300-*-linux toolchain is already merged for trunk.
But not include latest release.
Backported patch is https://osdn.jp/projects/uclinux-h8/releases/p14625

> Best regards,
> Javier
> 
>  arch/h8300/Makefile | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile
> index 0d2d96e52d9f..e1c02ca230cb 100644
> --- a/arch/h8300/Makefile
> +++ b/arch/h8300/Makefile
> @@ -22,7 +22,9 @@ KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\"
>  KBUILD_AFLAGS += $(aflags-y)
>  LDFLAGS += $(ldflags-y)
>  
> +ifeq ($(CROSS_COMPILE),)
>  CROSS_COMPILE := h8300-unknown-linux-
> +endif
>  
>  core-y	+= arch/$(ARCH)/kernel/ arch/$(ARCH)/mm/
>  ifneq '$(CONFIG_H8300_BUILTIN_DTB)' '""'
> -- 
> 2.4.3
> 

Applied.
Thanks.

-- 
Yoshinori Sato
<ysato@...rs.sourceforge.jp>
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