Re: [Xen-devel] [PATCH 5/7] xen: Don't build libelf for Arm

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Tue, 5 Jun 2018, Julien Grall wrote:
> Now that ELF support has been dropped to boot Dom0, no-one is using
> libelf within the hypervisor.
> 
> Introduce a config option to select libelf on x86 and keep unselected
> for Arm.
> 
> Signed-off-by: Julien Grall <julien.grall@xxxxxxx>

Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>


> ---
>  xen/arch/x86/Kconfig | 1 +
>  xen/common/Kconfig   | 3 +++
>  xen/common/Makefile  | 2 +-
>  3 files changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/xen/arch/x86/Kconfig b/xen/arch/x86/Kconfig
> index f64fc56739..3d388133ef 100644
> --- a/xen/arch/x86/Kconfig
> +++ b/xen/arch/x86/Kconfig
> @@ -12,6 +12,7 @@ config X86
>       select HAS_CPUFREQ
>       select HAS_EHCI
>       select HAS_EX_TABLE
> +     select HAS_ELF
>       select HAS_GDBSX
>       select HAS_IOPORTS
>       select HAS_KEXEC
> diff --git a/xen/common/Kconfig b/xen/common/Kconfig
> index 9043dce937..3cf551c736 100644
> --- a/xen/common/Kconfig
> +++ b/xen/common/Kconfig
> @@ -17,6 +17,9 @@ config HAS_ALTERNATIVE
>  config HAS_DEVICE_TREE
>       bool
>  
> +config HAS_ELF
> +    bool
> +
>  config HAS_EX_TABLE
>       bool
>  
> diff --git a/xen/common/Makefile b/xen/common/Makefile
> index 24d4752ccc..3cc808bd83 100644
> --- a/xen/common/Makefile
> +++ b/xen/common/Makefile
> @@ -78,5 +78,5 @@ obj-$(CONFIG_TMEM) += $(tmem-y)
>  subdir-$(CONFIG_COVERAGE) += coverage
>  subdir-$(CONFIG_UBSAN) += ubsan
>  
> -subdir-y += libelf
> +subdir-$(CONFIG_HAS_ELF) += libelf
>  subdir-$(CONFIG_HAS_DEVICE_TREE) += libfdt
> -- 
> 2.11.0
> 

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