Add NT_ARM_PAC_ENABLED_KEYS to elf.h

[Adhemerval Zanella]

On 08/07/2021 13:56, Joseph Myers wrote:
> This patch adds the new NT_ARM_PAC_ENABLED_KEYS constant from Linux
> 5.13 to glibc's elf.h.
> 
> Tested for x86_64.

LGTM, thanks.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

> 
> diff --git a/elf/elf.h b/elf/elf.h
> index 2a62b98d4a..4738dfa28f 100644
> --- a/elf/elf.h
> +++ b/elf/elf.h
> @@ -816,6 +816,8 @@ typedef struct
>  					   generic key.  */
>  #define NT_ARM_TAGGED_ADDR_CTRL	0x409	/* AArch64 tagged address
>  					   control.  */
> +#define NT_ARM_PAC_ENABLED_KEYS	0x40a	/* AArch64 pointer authentication
> +					   enabled keys.  */
>  #define NT_VMCOREDD	0x700		/* Vmcore Device Dump Note.  */
>  #define NT_MIPS_DSP	0x800		/* MIPS DSP ASE registers.  */
>  #define NT_MIPS_FP_MODE	0x801		/* MIPS floating-point mode.  */
>