[OE-core] [PATCH v2] libunwind: add aarch64 support

[Khem Raj]

On Tue, Sep 20, 2016 at 7:21 AM, Randy MacLeod
<randy.macleod at windriver.com> wrote:
> On 2016-09-20 07:57 AM, Fathi Boudra wrote:
>>
>> Hi,
>>
>> On 20 September 2016 at 05:12, ChenQi <Qi.Chen at windriver.com
>> <mailto:Qi.Chen at windriver.com>> wrote:
>>>
>>> On 09/26/2014 05:59 PM, Fathi Boudra wrote:
>>>>
>>>>
>>>> * pass --enable-debug-frame on aarch64 architecture
>>>
>>>
>>>
>>> Hi Fathi,
>>>
>>> I'm now dealing with a problem related to libunwind support on aarch64.
>>> Could you please tell me why '--enable-debug-frame' is needed for
>>> aarch64?
>>
>>
>> libunwind needs to be configured with --enable-debug-frame to prevent a
>> linkage error.
>> Note: --enable-debug-frame is automatically selected on ARM32, not on
>> ARM64.
>>
>
> Thanks.
> We dropped the configuration flag and don't see any linking/linkage
> problems yet. Can you be more specific about the problems encountered?

This would enable .debug_frame instead of .eh_frame for unwinding.
AFAICT it was only
needed on arm ( 32bit) not sure you need this on aarch64

>
> Our goal is to make tcmalloc from gperftools work on ARM64.
>
> ../Randy
>
>
>>> Best Regards,
>>> Chen Qi
>>
>>
>> Cheers,
>> Fathi
>>
>>
>
>
> --
> # Randy MacLeod. SMTS, Linux, Wind River
> Direct: 613.963.1350 | 350 Terry Fox Drive, Suite 200, Ottawa, ON, Canada,
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