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From: Yann E. MORIN <yann.morin.1998@free.fr>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 2/3] boot/uboot: use HOSTCC_NOCCACHE as kconfig HOSTCC
Date: Sun, 13 Jan 2019 22:47:39 +0100	[thread overview]
Message-ID: <20190113214739.GL2428@scaer> (raw)
In-Reply-To: <20190110211500.14368-3-thomas.petazzoni@bootlin.com>

Thomas, All,

On 2019-01-10 22:14 +0100, Thomas Petazzoni spake thusly:
> At kconfig time, dependencies are not built, and therefore host-ccache
> is not ready. Due to this, using $(HOSTCC) as the host compiler in
> KCONFIG_OPTS does not work: a "make uboot-menuconfig" invocation from
> a clean tree with ccache enabled fails.
> 
> This commit fixes this by using $(HOSTCC_NOCCACHE). We cannot rely on
> the default value of HOSTCC passed by the kconfig-package
> infrastructure, because $(UBOOT_MAKE_OPTS) also contains a HOSTCC
> definition that would override the one passed by the kconfig-package
> infrastructure.
> 
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
> ---
>  boot/uboot/uboot.mk | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/boot/uboot/uboot.mk b/boot/uboot/uboot.mk
> index cbdfee6ac3..6977bcc064 100644
> --- a/boot/uboot/uboot.mk
> +++ b/boot/uboot/uboot.mk
> @@ -227,8 +227,9 @@ UBOOT_KCONFIG_EDITORS = menuconfig xconfig gconfig nconfig
>  # (which is typically wchar) but link with
>  # $(HOST_DIR)/lib/libncurses.so (which is not).  We don't actually
>  # need any host-package for kconfig, so remove the HOSTCC/HOSTLDFLAGS
> -# override again.
> -UBOOT_KCONFIG_OPTS = $(UBOOT_MAKE_OPTS) HOSTCC="$(HOSTCC)" HOSTLDFLAGS=""
> +# override again. In addition, host-ccache is not ready at kconfig
> +# time, so use HOSTCC_NOCCACHE.
> +UBOOT_KCONFIG_OPTS = $(UBOOT_MAKE_OPTS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTLDFLAGS=""

Since you're just switching over to the no-ccache variant:

Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

However, I wonder if we would not be better off if we had written
something like;

    UBOOT_KCONFIG_OPTS = $(filter-out HOSTCC=% HOSTLDFLAGS=%, $(UBOOT_MAKE_OPTS))

But this is another story. ;-)

Regards,
Yann E. MORIN.

>  define UBOOT_HELP_CMDS
>  	@echo '  uboot-menuconfig       - Run U-Boot menuconfig'
>  	@echo '  uboot-savedefconfig    - Run U-Boot savedefconfig'
> -- 
> 2.20.1
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

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  reply	other threads:[~2019-01-13 21:47 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-10 21:14 [Buildroot] [PATCH 0/3] Fix pkg-kconfig packages with ccache enabled Thomas Petazzoni
2019-01-10 21:14 ` [Buildroot] [PATCH 1/3] package/pkg-kconfig: pass HOSTCC during kconfig steps Thomas Petazzoni
2019-01-13 21:43   ` Yann E. MORIN
2019-01-16 22:39   ` Peter Korsgaard
2019-01-28 17:01   ` Peter Korsgaard
2019-01-10 21:14 ` [Buildroot] [PATCH 2/3] boot/uboot: use HOSTCC_NOCCACHE as kconfig HOSTCC Thomas Petazzoni
2019-01-13 21:47   ` Yann E. MORIN [this message]
2019-01-13 21:51     ` Yann E. MORIN
2019-01-24 16:12       ` Arnout Vandecappelle
2019-01-16 22:39   ` Peter Korsgaard
2019-01-28 17:01   ` Peter Korsgaard
2019-01-10 21:15 ` [Buildroot] [PATCH 3/3] linux: " Thomas Petazzoni
2019-01-13 21:50   ` Yann E. MORIN
2019-01-16 22:40   ` Peter Korsgaard
2019-01-28 17:01   ` Peter Korsgaard

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