[PATCH v4 3/4] arm64: vdso32: put ELF related sections in the linker script

[Vincenzo Frascino]

On 4/14/22 11:46 AM, Joey Gouly wrote:
> Use macros from vmlinux.lds.h to explicitly name sections that are included
> in the compat VDSO32 output.
> 
> Signed-off-by: Joey Gouly <joey.gouly at arm.com>
> Cc: Catalin Marinas <catalin.marinas at arm.com>
> Cc: Will Deacon <will at kernel.org>
> Cc: Masahiro Yamada <masahiroy at kernel.org>
> Cc: Vincenzo Frascino <vincenzo.frascino at arm.com>
> Cc: Kees Cook <keescook at chromium.org>

Reviewed-by: Vincenzo Frascino <vincenzo.frascino at arm.com>

> ---
>  arch/arm64/kernel/vdso32/vdso.lds.S | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/kernel/vdso32/vdso.lds.S b/arch/arm64/kernel/vdso32/vdso.lds.S
> index 3348ce5ea306..3bb955f08240 100644
> --- a/arch/arm64/kernel/vdso32/vdso.lds.S
> +++ b/arch/arm64/kernel/vdso32/vdso.lds.S
> @@ -11,6 +11,7 @@
>  #include <linux/const.h>
>  #include <asm/page.h>
>  #include <asm/vdso.h>
> +#include <asm-generic/vmlinux.lds.h>
>  
>  OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
>  OUTPUT_ARCH(arm)
> @@ -42,6 +43,9 @@ SECTIONS
>  	.got		: { *(.got) }
>  	.rel.plt	: { *(.rel.plt) }
>  
> +	ELF_DETAILS
> +	.ARM.attributes 0 : { *(.ARM.attributes) }
> +
>  	/DISCARD/	: {
>  		*(.note.GNU-stack)
>  		*(.data .data.* .gnu.linkonce.d.* .sdata*)

-- 
Regards,
Vincenzo