Can't build kernel anymore: amd64 kernel requires linker ifunc support

[Warner Losh]

On Wed, May 16, 2018 at 3:49 AM, Hans Petter Selasky <hps at selasky.org>
wrote:

> On 05/16/18 11:42, Emeric POUPON wrote:
>
>>
>> Thanks for your help.
>>>>
>>>> Actually, I already did all the steps described here:
>>>> https://www.freebsd.org/doc/handbook/makeworld.html with success.
>>>> After step 10, I now get this error.
>>>> I tried to put WITHOUT_LLD_BOOTSTRAP=yes in /etc/src.conf + rebuild
>>>> everything with no luck.
>>>>
>>>>
>>>> Please remove this line from your src.conf, lld is required for building
>>> kernel since the ifunc support.
>>>
>>>
>> I already did all the steps of the handbook without this line, and I
>> finally had the issue I described.
>> What I told is that adding this line + make buildworld does not solve the
>> kernel building issue.
>>
>
> Try adding:
>
> -m $PWD/share/mk
>
> After make.
>
> Not sure if it helps.


LD=ld.lld make

is the magic here. The kernel needs a new linker to properly link in the
ifunc, and that's not our ancient ld. lld does it, as does the latter-day
binutils.

Warner