[Buildroot] [PATCH v3 3/4] package/binutils: Cortex-M targets require version <2.29

[Yann E. MORIN]

Christophe, All,

On 2018-05-31 13:21 +0000, Christophe PRIOUZEAU spake thusly:
> From: Laurent GONZALEZ <br22 at gezedo.com>
> 
> binutils 2.29 changed the implementation of adr pseudo instruction
> it breaks linux kernel and impacts Cortex-M targets (eg. stm32)
> 
> Signed-off-by: Laurent GONZALEZ <br22 at gezedo.com>
> Signed-off-by: Christophe Priouzeau <christophe.priouzeau at st.com>
> ---
>  package/binutils/Config.in.host | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/package/binutils/Config.in.host b/package/binutils/Config.in.host
> index 03b2281..9a4caad 100644
> --- a/package/binutils/Config.in.host
> +++ b/package/binutils/Config.in.host
> @@ -2,8 +2,9 @@ comment "Binutils Options"
>  
>  choice
>  	prompt "Binutils Version"
> -	default BR2_BINUTILS_VERSION_2_29_X if !BR2_arc
> -	default BR2_BINUTILS_VERSION_ARC if BR2_arc
> +	default BR2_BINUTILS_VERSION_2_28_X if BR2_ARM_CPU_ARMV7M

Again, isn't it the fact that a Thumb-mode compilation is attempted, so
we'd trigger the same issue when building in Thumb mode for (e.g.) a
cortex-a CPU as well?

Regards,
Yann E. MORIN.

> +	default BR2_BINUTILS_VERSION_2_29_X if !BR2_arc && !BR2_ARM_CPU_ARMV7M
> +	default BR2_BINUTILS_VERSION_ARC if BR2_arc && !BR2_ARM_CPU_ARMV7M
>  	help
>  	  Select the version of binutils you wish to use.
>  
> -- 
> 2.7.4
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