Re: [Xen-devel] [PATCH 19/34] xen/arm: Provide eabi wrapper for __aeabi_mem* functions

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 03/26/2014 03:47 PM, Ian Campbell wrote:
> On Wed, 2014-03-26 at 15:38 +0000, Julien Grall wrote:
>> On 03/26/2014 10:39 AM, Ian Campbell wrote:
>>> On Tue, 2014-03-25 at 18:12 +0000, Julien Grall wrote:
>>>> Hi Ian,
>>>>
>>>> On 03/25/2014 05:25 PM, Ian Campbell wrote:
>>>>> On Tue, 2014-03-25 at 16:55 +0000, Julien Grall wrote:
>>>>>> Clang doesn't provide function __aebai_mem*, implement generically as a 
>>>>>> wrapper
>>>>>> for mem* function provided by Xen.
>>>>>
>>>>> Where are the references to these functions coming from if not from the
>>>>> compiler?
>>>>
>>>> Theses functions are called by the code generated by the compiler.
>>>
>>> And who normally provides them when building with clang? Some sort of
>>> libclang I guess?
>>
>> I've tried to compile a same compilation unit with gcc and clang. gcc is
>> inlining the call to __aebi_*.
> 
> That is orthogonal to the question I asked.
> 
> What in a clang based system normally provides __aeabi_*?
> 
> Your choices are "a libclang thing", "the libc", "something else".

Sorry I spent the last couple of hours to try to find who is providing
the __aebi_* functions.

For userspace binary it's providing by the glibc.

Regards,

-- 
Julien Grall

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