[OE-core] [PATCH v2] grub: add -Wno-error=trampolines to native CFLAGS

[Khem Raj]

> On Jun 26, 2016, at 7:00 PM, ChenQi <Qi.Chen at windriver.com> wrote:
> 
> On 06/24/2016 10:04 PM, Khem Raj wrote:
>> On Thu, Jun 23, 2016 at 11:19 PM, ChenQi <Qi.Chen at windriver.com> wrote:
>>> Hi,
>>> 
>>> Is the error still there for gcc6 without this option for CFLAGS?
>>> The problem is that gcc on some old hosts don't support this option.
>> how old is the host. We should start recommending minimum required GCC
>> version on build host.
>> Sometimes a newer gcc is available for older distros too as alternative package.
> 
> That is centos6.

we can recommend additional feeds for centos6 then ?
something like

http://people.centos.org/tru/devtools-2

Which will make gcc 4.8 available for centos6 along with 4.4 which is the default

If one wants to use devtools-3 then they can get gcc-4.9 as well, however its only
available for x86_64

> 
> Best Regards,
> Chen Qi
> 
>>> Best Regards,
>>> Chen Qi
>>> 
>>> On 03/18/2016 09:30 AM, 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 at 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
>>> 
>>> --
>>> _______________________________________________
>>> Openembedded-core mailing list
>>> Openembedded-core at lists.openembedded.org
>>> http://lists.openembedded.org/mailman/listinfo/openembedded-core
> 

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