On 6/1/2016 4:48 PM, Mark Millard wrote:
> On 2016-Jun-1, at 4:30 PM, Bryan Drewery <bdrewery at FreeBSD.org> wrote:
>> On 6/1/2016 4:29 PM, Bryan Drewery wrote:
>>> On 6/1/2016 4:25 PM, Mark Millard wrote:
>>>> [The example context here for extracted materials is a amd64 -> armv6 
>>>> cross build.]
>>>> In my recent experimentation with WITH_META_MODE=yes I’ve had multiple 
>>>> occasions when after updating /usr/src I attempt buildworld buildkernel 
>>>> and end up with something like:
>>>>> --- lib/ncurses/ncursesw__L ---
>>>>> Building 
>>>>> /usr/obj/clang/arm.armv6/usr/src/lib/ncurses/ncursesw/init_keytry.h
>>>>> --- init_keytry.h ---
>>>>> sh: ./make_keys: Exec format error
>>>>> *** [init_keytry.h] Error code 126
>>>>> make[4]: stopped in /usr/src/lib/ncurses/ncursesw
>>>>> 1 error
>>>>> make[4]: stopped in /usr/src/lib/ncurses/ncursesw
>>>>> *** [lib/ncurses/ncursesw__L] Error code 2
>>>> I’ve also had such for powerpc being the target and make toolchain in use 
>>>> (preparing for buildkernel without buildworld).
>>>> There are multiple instances of make_keys construction in the builds. Here 
>>>> it looks like:
>>>>> # grep make_keys 
>>>>> ~/sys_typescripts/typescript_make_rpi2_nodebug_clang_bootstrap-amd64-host-2016-06-01:15:17:28
>>>>> Building /usr/obj/clang/arm.armv6/usr/src/lib/ncurses/ncursesw/make_keys
>>>>> Building /usr/obj/clang/arm.armv6/usr/src/lib/ncurses/ncurses/make_keys
>>>>> Building /usr/obj/clang/arm.armv6/usr/src/lib/ncurses/ncursesw/make_keys
>>>>> sh: ./make_keys: Exec format error
>>>> Note that ncursesw has two Building lines above with the same path listed.
>>>> cleanworld and then retrying the sequence desired always seems to work but 
>>>> is a complete rebuild.
>>> I don't understand why you're hitting this. It's an issue that I ran
>>> into and fixed and haven't run into again from several powerpc64 build
>>> tests.
>> It's possible r301079 reintroduced the bug. I'll find out.
>> -- 
>> Regards,
>> Bryan Drewery
> [All the below is from an amd64 host context.]
> As far as I remember I've not seen "sh: ./make_keys: Exec format error" when 
> powerpc64-gcc or amd64-gcc is in use (my xtoolchain experiments): my src.conf 
> files for such have more in them and various other differences for those 
> because of binding to powerpc64-gcc or amd64-gcc and the related binutils.
> [The below do not involve ports compilers/tools.]
> I have seen "sh: ./make_keys: Exec format error" when clang or gcc 4.2.1 is 
> being used for the cross compiles. My armv6 context has a clang based 
> buildworld and buildkernel. My powerpc kernel builds have a gcc 4.2.1 based 
> buildkernel (no buildworld).
> I've not seen the problem for amd64 targeting amd64 via clang as far as I can 
> remember. I've not tried WITH_META_MODE=yes for any other self-targeting 
> context yet.

Yup it is due to r301079. Will have to think on this. It was a temporary
workaround until bmake was fixed.

Bryan Drewery

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