Re: [PATCH v2] Cygwin: mkimport: port to support AArch64

[Corinna Vinschen]

On Jul 10 09:24, Radek Barton via Cygwin-patches wrote:
> >From e5060aa9afc7346301b7f394515d7a280b3c703d Mon Sep 17 00:00:00 2001
> From: =?UTF-8?q?Radek=20Barto=C5=88?= <radek.bar...@microsoft.com>
> Date: Mon, 9 Jun 2025 08:45:27 +0200
> Subject: [PATCH v2] Cygwin: mkimport: port to support AArch64
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
> 
> This patch ports winsup/cygwin/scripts/mkimport script to AArch64, namely
> implements relocation to the imp_sym.
> 
> Signed-off-by: Radek Bartoň <radek.bar...@microsoft.com>
> ---
>  winsup/cygwin/scripts/mkimport | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/winsup/cygwin/scripts/mkimport b/winsup/cygwin/scripts/mkimport
> index 9517c4e9e..0c1bcafbf 100755
> --- a/winsup/cygwin/scripts/mkimport
> +++ b/winsup/cygwin/scripts/mkimport
> @@ -24,6 +24,7 @@ my %import = ();
>  my %symfile = ();
>  
>  my $is_x86_64 = ($cpu eq 'x86_64' ? 1 : 0);
> +my $is_aarch64 = ($cpu eq 'aarch64' ? 1 : 0);
>  # FIXME? Do other (non-32 bit) arches on Windows still use symbol prefixes?
>  my $sym_prefix = '';
>  
> @@ -65,6 +66,16 @@ for my $f (keys %text) {
>       .global $glob_sym
>  $glob_sym:
>       jmp     *$imp_sym(%rip)
> +EOF
> +     } elsif ($is_aarch64) {
> +         print $as_fd <<EOF;
> +     .text
> +     .extern $imp_sym
> +     .global $glob_sym
> +$glob_sym:
> +     adr x16, $imp_sym
> +     ldr x16, [x16]
> +     br x16
>  EOF
>       } else {
>           print $as_fd <<EOF;
> -- 
> 2.50.1.vfs.0.0
> 

Pushed.


Thanks,
Corinna