Re: [PATCH v3 2/5] arm/config: Declare ELFSIZE_[32|64] respectively.

[Julien Grall <julien.grall@arm.com>]

Hi Konrad,

On 17/03/16 01:16, Konrad Rzeszutek Wilk wrote:
> And here is the patch. The change for uintXX_t type worked out - same
> size and offset as on 64-bit. Thought I am tempted to add some
> more BUILD_BUG checks.
>
>  From 7007f1a3fa3a77a725f529420c7aea0e8ebdc9fa Mon Sep 17 00:00:00 2001
> From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
> Date: Wed, 16 Mar 2016 16:08:25 -0400
> Subject: [PATCH v4 01/35] arm/config: Declare ELFSIZE_[32|64]
>
> The commit bcfaea685d38c08e5eb90797512ab80f0bc69d0c
> "arm/config: Declare ELFSIZE_64" was not correct.
>
> For 32-bit ARM, ELFCLASS32 (i.e. 32-bit data types) will always
> be used so we need to set ELFSIZE to 32.
>
> Reported-by: Julien Grall <julien.grall@arm.com>
> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Acked-by: Julien Grall <julien.grall@arm.com>

Regards,

>
> ---
> Cc: Stefano Stabellini <stefano.stabellini@citrix.com>
> Cc: Julien Grall <julien.grall@arm.com>
> --
> ---
>   xen/include/asm-arm/config.h | 5 ++---
>   1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/xen/include/asm-arm/config.h b/xen/include/asm-arm/config.h
> index 7ceb5c5..2d11b62 100644
> --- a/xen/include/asm-arm/config.h
> +++ b/xen/include/asm-arm/config.h
> @@ -9,8 +9,10 @@
>
>   #if defined(CONFIG_ARM_64)
>   # define LONG_BYTEORDER 3
> +# define ELFSIZE 64
>   #else
>   # define LONG_BYTEORDER 2
> +# define ELFSIZE 32
>   #endif
>
>   #define BYTES_PER_LONG (1 << LONG_BYTEORDER)
> @@ -20,9 +22,6 @@
>   /* xen_ulong_t is always 64 bits */
>   #define BITS_PER_XEN_ULONG 64
>
> -/* And ELF files are also 64-bit. */
> -#define ELFSIZE 64
> -
>   #define CONFIG_PAGING_ASSISTANCE 1
>
>   #define CONFIG_PAGING_LEVELS 3
>

-- 
Julien Grall

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