Matthew Malcomson <matthew.malcom...@arm.com> writes:
> diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
> index 
> d581a34653f61a440b3c3b832836fe109e2fbd08..25d041fcbb1f7c16f7ac47b7b5d4ea8308c6f69c
>  100644
> --- a/gcc/doc/install.texi
> +++ b/gcc/doc/install.texi
> @@ -2767,6 +2767,11 @@ the build tree.
>  Compiles GCC itself using Address Sanitization in order to catch invalid 
> memory
>  accesses within the GCC code.
>  
> +@item @samp{bootstrap-hwasan}
> +Compiles GCC itself using HWAddress Sanitization in order to catch invalid
> +memory accesses within the GCC code.  This option is only available on 
> AArch64
> +targets running a Linux kernel that supports the required ABI (5.4 or later).

I'd suggest rewording the last sentence, since it isn't clear whether 5.4
is an ABI version or a Linux kernel version.  Maybe something like:

  This option is only available on AArch64 systems that are running Linux
  kernel version 5.4 or later.

Not sure how good that is, suggestions for something better welcome.

Looks good otherwise.

Thanks,
Richard

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