[U-Boot] [PATCH v4 11/21] efi_loader: Introduce ms abi vararg helpers

[Simon Glass]

Hi Alex,

On 18 June 2018 at 09:23, Alexander Graf <agraf at suse.de> wrote:
> Varargs differ between sysv and ms abi. On x86_64 we have to follow the ms
> abi though, so we also need to make sure we use x86_64 varargs helpers.
>
> This patch introduces generic efi vararg helpers that adhere to the
> respective EFI ABI. That way we can deal with them properly from efi
> loader code and properly interpret variable arguments.
>
> This fixes the InstallMultipleProtocolInterfaces tests in the efi selftests
> on x86_64 for me.
>
> Signed-off-by: Alexander Graf <agraf at suse.de>
> ---
>  include/efi.h                 |  8 ++++++++
>  lib/efi_loader/efi_boottime.c | 36 ++++++++++++++++++------------------
>  2 files changed, 26 insertions(+), 18 deletions(-)

I thought this was a bug in gcc. Should we include this workaround
only for older gcc versions?

Regards,
Simon