Re: [Qemu-devel] [PATCH for-2.0 V2] tests/acpi-test: do not run iasl on big endian machines

["Michael S. Tsirkin" <mst@redhat.com>]

On Thu, Mar 20, 2014 at 08:40:08PM +0200, Marcel Apfelbaum wrote:
> There is an issue with iasl on big endian machines: It
> cannot disassemble acpi tables taken from little endian
> machines, so we cannot check the expected tables.
> 
> Do not run iasl on those machines until this
> problem is solved by the acpica community.
> 
> Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>

Seems too aggressive: can't we detect the broken iasl?
E.g. won't it fail to disassemble expected AML files?
Also, won't this broken iasl generate corrupt AML
on output? If yes we should detect this at configure
time instead?

> ---
> V1 -> V2:
>  Addressed an offline tip for a much cleaner
>  macro line, thanks!
> 
>  tests/acpi-test.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tests/acpi-test.c b/tests/acpi-test.c
> index 249fe03..88e876f 100644
> --- a/tests/acpi-test.c
> +++ b/tests/acpi-test.c
> @@ -145,7 +145,7 @@ static uint8_t boot_sector[0x7e000] = {
>  
>  static const char *disk = "tests/acpi-test-disk.raw";
>  static const char *data_dir = "tests/acpi-test-data";
> -#ifdef CONFIG_IASL
> +#if G_BYTE_ORDER == G_LITTLE_ENDIAN && defined(CONFIG_IASL)
>  static const char *iasl = stringify(CONFIG_IASL);
>  #else
>  static const char *iasl;
> -- 
> 1.8.3.1