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To: "Randle, William C" <william.c.randle@intel.com>,
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From: "Lopez, Mariano" <mariano.lopez@linux.intel.com>
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Date: Fri, 18 Mar 2016 12:00:08 -0600
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Subject: Re: [PATCH v2] grub: add -Wno-error=trampolines to native CFLAGS
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On 3/17/2016 7:30 PM, Randle, William C wrote:
> Previous patch was not against master. Updated against master branch.
>
> Fixes YOCTO 9201
> Adds -Wno-error=trampolines to native CFLAGS prevent multiple compile
> errors when using gcc 5.3.0 for gentoo.
>
> Signed-off-by: Bill Randle <william.c.randle@intel.com>
> ---
>   meta/recipes-bsp/grub/grub-efi_2.00.bb | 4 ++++
>   1 file changed, 4 insertions(+)
>
> diff --git a/meta/recipes-bsp/grub/grub-efi_2.00.bb b/meta/recipes-bsp/grub/grub-efi_2.00.bb
> index 4e80e18..ca73234 100644
> --- a/meta/recipes-bsp/grub/grub-efi_2.00.bb
> +++ b/meta/recipes-bsp/grub/grub-efi_2.00.bb
> @@ -35,6 +35,10 @@ EXTRA_OECONF = "--with-platform=efi --disable-grub-mkfont \
>   
>   EXTRA_OECONF += "${@bb.utils.contains('DISTRO_FEATURES', 'largefile', '--enable-largefile ac_cv_sizeof_off_t=8', '--disable-largefile', d)}"
>   
> +# ldm.c:114:7: error: trampoline generated for nested function 'hook' [-Werror=trampolines]
> +# and many other places in the grub code when compiled with some native gcc 5.3 compilers
> +CFLAGS_append_class-native = " -Wno-error=trampolines"
> +
>   do_install_class-native() {
>      install -d ${D}${bindir}
>      install -m 755 grub-mkimage ${D}${bindir}
> --
> 2.5.0

I'm a gentoo user and I have the trampoline issue with gcc 4.9.3. I just 
tested this patch in gentoo and it works, I can remove my bbappend file 
from my personal layer!

Mariano