Re: [Xen-devel] xen/link: Move .data.rel.ro sections into .rodata for final link

[Wei Liu <wei.liu2@xxxxxxxxxx>]

CC relevant maintainers

On Thu, Jul 20, 2017 at 05:20:43PM +0200, David Woodhouse wrote:
> From: David Woodhouse <dwmw@xxxxxxxxxxxx>
> 
> This includes stuff lke the hypercall tables which we really want
> to be read-only. And they were going into .data.read-mostly.
> 
> Signed-off-by: David Woodhouse <dwmw@xxxxxxxxxxxx>
> ---
> Build tested on x86_64 (you really don't want to know about what I
> *actually* tested it with), not at all tested on ARM.
> 
>  xen/arch/arm/xen.lds.S | 4 ++--
>  xen/arch/x86/xen.lds.S | 4 ++--
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/xen/arch/arm/xen.lds.S b/xen/arch/arm/xen.lds.S
> index 44bd3bf..2d54f22 100644
> --- a/xen/arch/arm/xen.lds.S
> +++ b/xen/arch/arm/xen.lds.S
> @@ -52,6 +52,8 @@ SECTIONS
>         __stop_bug_frames_2 = .;
>         *(.rodata)
>         *(.rodata.*)
> +       *(.data.rel.ro)
> +       *(.data.rel.ro.*)
>  
>  #ifdef CONFIG_LOCK_PROFILE
>         . = ALIGN(POINTER_ALIGN);
> @@ -97,8 +99,6 @@ SECTIONS
>         __stop___pre_ex_table = .;
>  
>         *(.data.read_mostly)
> -       *(.data.rel.ro)
> -       *(.data.rel.ro.*)
>    } :text
>  
>    . = ALIGN(8);
> diff --git a/xen/arch/x86/xen.lds.S b/xen/arch/x86/xen.lds.S
> index 8289a1b..ff08bbe 100644
> --- a/xen/arch/x86/xen.lds.S
> +++ b/xen/arch/x86/xen.lds.S
> @@ -90,6 +90,8 @@ SECTIONS
>  
>         *(.rodata)
>         *(.rodata.*)
> +       *(.data.rel.ro)
> +       *(.data.rel.ro.*)
>  
>  #if defined(BUILD_ID) && defined(EFI) && !defined(BUILD_ID_EFI)
>  /*
> @@ -224,8 +226,6 @@ SECTIONS
>         __start_schedulers_array = .;
>         *(.data.schedulers)
>         __end_schedulers_array = .;
> -       *(.data.rel.ro)
> -       *(.data.rel.ro.*)
>    } :text
>  
>    .data : {                    /* Data */
> -- 
> 2.7.4



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