[PATCH v2 05/13] aarch64: Add BTI landing pads to assembly code

[Andreas Schwab]

On Mai 12 2020, Szabolcs Nagy wrote:

> diff --git a/sysdeps/aarch64/sysdep.h b/sysdeps/aarch64/sysdep.h
> index 604c489170..161d63c782 100644
> --- a/sysdeps/aarch64/sysdep.h
> +++ b/sysdeps/aarch64/sysdep.h
> @@ -41,12 +41,40 @@
>  
>  #define ASM_SIZE_DIRECTIVE(name) .size name,.-name
>  
> +/* Branch Target Identitication support.  */
> +#define BTI_C		hint	34
> +#define BTI_J		hint	36
> +
> +#define FEATURE_1_BTI 1
> +#define FEATURE_1_PAC 2
> +
> +/* Add a GNU_PROPERTY_AARCH64_FEATURE_1_AND note.  */
> +#define GNU_PROPERTY(features)		\
> +  .section .note.gnu.property, "a";	\
> +  .p2align 3;				\
> +  .word 4;				\
> +  .word 16;				\
> +  .word 5;				\
> +  .asciz "GNU";				\
> +  .word 0xc0000000;			\

Is that GNU_PROPERTY_AARCH64_FEATURE_1_AND?

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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