[Buildroot] [PATCH 3/7] boot/uboot: do not check hash for custom versions

[Arnout Vandecappelle <arnout@mind.be>]

On 29/04/15 00:40, Yann E. MORIN wrote:
> For custom tarballs, it's quite obvious we can not check hashes.
> 
> For custom versions, that's not so obvious. One might think we could
> have hashes for all the official releases, but that's not possible: if
> the user uses a released version of Buildroot (say 2015.05) much later
> in the future, and wants to use the then-released 2038.02 U-Boot. It now
> seems pretty obvious that Buildroot 2015.02 can't know the hash for
> U-Boot 2038.02.
> 
> So, disable checking the hash for custom tarballs and custom versions.
> 
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> Cc: Vincent Stehle <vincent.stehle@laposte.net>
> ---
>  boot/uboot/uboot.mk | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/boot/uboot/uboot.mk b/boot/uboot/uboot.mk
> index 01aaf2c..410d8d8 100644
> --- a/boot/uboot/uboot.mk
> +++ b/boot/uboot/uboot.mk
> @@ -17,6 +17,7 @@ ifeq ($(UBOOT_VERSION),custom)
>  UBOOT_TARBALL = $(call qstrip,$(BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION))
>  UBOOT_SITE = $(patsubst %/,%,$(dir $(UBOOT_TARBALL)))
>  UBOOT_SOURCE = $(notdir $(UBOOT_TARBALL))
> +BR_NO_CHECK_HASH_FOR += $(UBOOT_SOURCE)
>  else ifeq ($(BR2_TARGET_UBOOT_CUSTOM_GIT),y)
>  UBOOT_SITE = $(call qstrip,$(BR2_TARGET_UBOOT_CUSTOM_REPO_URL))
>  UBOOT_SITE_METHOD = git
> @@ -27,6 +28,9 @@ else
>  # Handle stable official U-Boot versions
>  UBOOT_SITE = ftp://ftp.denx.de/pub/u-boot
>  UBOOT_SOURCE = u-boot-$(UBOOT_VERSION).tar.bz2
> +ifeq ($(BR2_TARGET_UBOOT_CUSTOM_VERSION),y)
> +BR_NO_CHECK_HASH_FOR += $(UBOOT_SOURCE)
> +endif
>  endif

 Since we really only have a hash for the latest version, I would prefer a
simple check after the entire condition:

ifeq ($(BR2_TARGET_UBOOT_LATEST_VERSION),)
BR_NO_CHECK_HASH_FOR += $(UBOOT_SOURCE)
endif

 This redundantly handles the VCS cases, but OTOH it doesn't hurt to have these
tarballs in there either. Actually, before patch 2/7, the VCS cases wouldn't
even be added because UBOOT_SOURCE is not set yet at that point :-)

 Regards,
 Arnout

>  
>  ifeq ($(BR2_TARGET_UBOOT_FORMAT_ELF),y)
> 


-- 
Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
Essensium/Mind                                http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium           BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F