Re: [kvm-unit-tests PATCH v2 21/23] x86: Move x86_64-specific EFI CFLAGS to x86_64 Makefile

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On Fri, May 06, 2022 at 09:56:03PM +0100, Nikos Nikoleris wrote:
> Compiler flag -macculate-outgoing-args is only needed by the x86_64
> ABI. Move it to the relevant Makefile.
> 
> Signed-off-by: Nikos Nikoleris <nikos.nikoleris@xxxxxxx>
> ---
>  Makefile            | 4 ----
>  x86/Makefile.x86_64 | 4 ++++
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 6ed5dea..307bc29 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -40,14 +40,10 @@ OBJDIRS += $(LIBFDT_objdir)
>  
>  # EFI App
>  ifeq ($(CONFIG_EFI),y)
> -EFI_ARCH = x86_64

Should this be moved to the x86 Makefile as well? (just in case)

>  EFI_CFLAGS := -DCONFIG_EFI
>  # The following CFLAGS and LDFLAGS come from:
>  #   - GNU-EFI/Makefile.defaults
>  #   - GNU-EFI/apps/Makefile
> -# Function calls must include the number of arguments passed to the functions
> -# More details: https://wiki.osdev.org/GNU-EFI
> -EFI_CFLAGS += -maccumulate-outgoing-args
>  # GCC defines wchar to be 32 bits, but EFI expects 16 bits
>  EFI_CFLAGS += -fshort-wchar
>  # EFI applications use PIC as they are loaded to dynamic addresses, not a fixed
> diff --git a/x86/Makefile.x86_64 b/x86/Makefile.x86_64
> index f18c1e2..ac588ed 100644
> --- a/x86/Makefile.x86_64
> +++ b/x86/Makefile.x86_64
> @@ -2,6 +2,10 @@ cstart.o = $(TEST_DIR)/cstart64.o
>  bits = 64
>  ldarch = elf64-x86-64
>  ifeq ($(CONFIG_EFI),y)
> +# Function calls must include the number of arguments passed to the functions
> +# More details: https://wiki.osdev.org/GNU-EFI
> +CFLAGS += -maccumulate-outgoing-args
> +
>  exe = efi
>  bin = so
>  FORMAT = efi-app-x86_64
> -- 
> 2.25.1
> 

Reviewed-by: Ricardo Koller <ricarkol@xxxxxxxxxx>



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