28 Mar
2018
28 Mar
'18
8:51 p.m.
On Wed, Mar 28, 2018 at 09:12:09PM +0200, Waldemar Brodkorb wrote:
Hi,
I believe OpenWrt disabled uClibc-ng support later.
Nope. The default may now be MUSL, but uClibc still is available as a
libc option on master, and the version was bumped to v1.0.28 two months
ago, so it definitely appears to be in use:
https://github.com/openwrt/openwrt/tree/master/toolchain/uClibc
The uClibc-ng config however makes no mention of
UCLIBC_USE_MIPS_PREFETCH, so by default it will be enabled:
https://github.com/openwrt/openwrt/blob/master/toolchain/uClibc/config/mips
I will log an issue on this so others don't fall victim to this.
good luck
Waldemar
> Am 28.03.2018 um 20:54 schrieb Pieter Smith <pieter(a)boesman.nl>nl>:
>
>> On Wed, Mar 28, 2018 at 08:27:26PM +0200, Waldemar Brodkorb wrote:
>> Hi,
>> Pieter Smith wrote,
>>
>>> It looks like memmove() is broken by design for mips. This has come up
>>> before in a previous thread, but with no proper resolution:
>>> https://mailman.uclibc-ng.org/pipermail/devel/2016-April/000837.html
>>
>> IIRC, the solution was found later, see:
>> https://mailman.uclibc-ng.org/pipermail/devel/2016-May/000918.html
>
> Thanks! I missed that one.
>
>> Disable UCLIBC_USE_MIPS_PREFETCH.
>> Prefetch is broken on some MIPS cores.
>
> Pity. This was only introduced in v1.0.15. We are still stuck with
> OpenWRT Chaos Calmer for which the toolchain is based on v1.0.14. We
> should be switching to OpenWRT DD soon, so I should be able to disable
> UCLIBC_USE_MIPS_PREFETCH.
>
> I did however notice that this is not done even on the latest OpenWRT. I
> will go knocking on the OpenWRT communitie's door.
>
>> best regards
>> Waldemar
>
> Thanks,
> Pieter
>
- Pieter