RFA (libstdc++): PATCH to implement C++17 over-aligned new

[Christophe Lyon]

On 9 September 2016 at 23:20, Jason Merrill <jason@redhat.com> wrote:
> On Thu, Sep 8, 2016 at 7:06 AM, Jonathan Wakely <jwakely@redhat.com> wrote:
>> On 08/09/16 09:10 +0200, Marc Glisse wrote:
>>>
>>> Do we want a generic fallback implementation (similar to
>>> gcc/config/i386/gmm_malloc.h)? A windows version with _aligned_malloc /
>>> _aligned_free would also be possible.
>>
>> Making it work for MinGW would be nice.
>
> OK, this is what I'm checking in; could someone test it on MinGW?
>
> Jason

Hi Jason,

I'm seeing problems on arm*linux: the tests aligned-new[1235].C fail to link:
aligned-new5.C:(.text+0x14): undefined reference to `operator
new(unsigned int, std::align_val_t)'


On aarch64*-elf and arm-eabi (using newlib), I'm seeing:
/gccsrc/libstdc++-v3/libsupc++/new_opa.cc:66: undefined reference to
`aligned_alloc'

Am I missing something in my setup?

Thanks,

Christophe