[U-Boot] [PATCH] efi_loader: EFI entry point should be EFIAPI

[Alexander Graf <agraf@suse.de>]

On 18.09.17 19:47, Rob Clark wrote:
> This is needed to run 'bootefi' from sandbox.  I suspect StartImage()
> must have been broken too on x86.
> 
> Signed-off-by: Rob Clark <robdclark@gmail.com>
> ---
>   cmd/bootefi.c                 | 2 +-
>   include/efi.h                 | 2 +-
>   lib/efi_loader/efi_boottime.c | 2 +-
>   3 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/cmd/bootefi.c b/cmd/bootefi.c
> index fb8ba9be6a..3c9a466e20 100644
> --- a/cmd/bootefi.c
> +++ b/cmd/bootefi.c
> @@ -96,7 +96,7 @@ static void *copy_fdt(void *fdt)
>   
>   static ulong efi_do_enter(void *image_handle,
>   			  struct efi_system_table *st,
> -			  asmlinkage ulong (*entry)(void *image_handle,
> +			  EFIAPI ulong (*entry)(void *image_handle,
>   				struct efi_system_table *st))
>   {
>   	efi_status_t ret = EFI_LOAD_ERROR;
> diff --git a/include/efi.h b/include/efi.h
> index 04e83220b4..47c2c8f398 100644
> --- a/include/efi.h
> +++ b/include/efi.h
> @@ -19,7 +19,7 @@
>   #include <linux/string.h>
>   #include <linux/types.h>
>   
> -#ifdef CONFIG_EFI_STUB_64BIT
> +#if defined(CONFIG_EFI_STUB_64BIT) || defined(CONFIG_SANDBOX)

This is incorrect for sandbox on non-x86_64 hosts. We should rather fix 
it in Kconfig I guess.


Alex

>   /* EFI uses the Microsoft ABI which is not the default for GCC */
>   #define EFIAPI __attribute__((ms_abi))
>   #else
> diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
> index 22bb95d738..3e10e6f6b5 100644
> --- a/lib/efi_loader/efi_boottime.c
> +++ b/lib/efi_loader/efi_boottime.c
> @@ -950,7 +950,7 @@ static efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle,
>   					   unsigned long *exit_data_size,
>   					   s16 **exit_data)
>   {
> -	ulong (*entry)(void *image_handle, struct efi_system_table *st);
> +	EFIAPI ulong (*entry)(void *image_handle, struct efi_system_table *st);
>   	struct efi_loaded_image *info = image_handle;
>   
>   	EFI_ENTRY("%p, %p, %p", image_handle, exit_data_size, exit_data);
>