Re: [PATCH] meson.build: add -mcx16 flag

[Paolo Bonzini <pbonzini@redhat.com>]

On 5/22/24 21:30, Artyom Kunakovsky wrote:
> fix linker error if the project was configured by the './configure --cpu=unknown --target-list=riscv64-softmmu' command
> 
> Signed-off-by: Artyom Kunakovsky <artyomkunakovsky@gmail.com>
> ---
>   meson.build | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/meson.build b/meson.build
> index a9de71d450..0c24878c86 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -298,7 +298,7 @@ endforeach
>   
>   qemu_common_flags = [
>     '-D_GNU_SOURCE', '-D_FILE_OFFSET_BITS=64', '-D_LARGEFILE_SOURCE',
> -  '-fno-strict-aliasing', '-fno-common', '-fwrapv' ]
> +  '-fno-strict-aliasing', '-fno-common', '-fwrapv', '-mcx16' ]

-mcx16 does not exist on non-x86 hosts so this change breaks them.

QEMU's configure script knows to add -mcx16 on x86 hosts; you've added 
--cpu=unknown yourself, you have to add --extra-cflags=-mcx16 as well.

Paolo

>   qemu_cflags = []
>   qemu_ldflags = []
>