[og12] nvptx: Support global constructors/destructors via 'collect2'

[Thomas Schwinge <thomas@codesourcery.com>]

Hi!

On 2022-12-02T14:35:35+0100, I wrote:
> On 2022-12-01T22:13:38+0100, I wrote:
>> I'm working on support for global constructors/destructors with
>> GCC/nvptx
>
> See "nvptx: Support global constructors/destructors via 'collect2'"
> attached; OK to push?  (... with 'gcc/doc/install.texi' accordingly
> updated once <https://github.com/MentorEmbedded/nvptx-tools/pull/40>
> "'nm'" and newlib
> <https://inbox.sourceware.org/newlib/878rjqaku5.fsf@dem-tschwing-1.ger.mentorg.com/>
> "nvptx: Implement '_exit' instead of 'exit'" have been merged; any
> comments to those?)

For now pushed to devel/omp/gcc-12 branch in
commit fe07b0003bb2092bc34d4bed504be1868b88782d
"nvptx: Support global constructors/destructors via 'collect2'",
see attached.

> Per my quick scanning of 'gcc/config.gcc' history, for more than two
> decades, there was a clear trend to remove 'use_collect2=yes'
> configurations; now finally a new one is being added -- making sure we're
> not slowly dispensing with the need for the early 1990s piece of work
> that 'gcc/collect2*' is...  ;'-P

(I still find that "notable" and "funny" in a certain way.)  ;-*


Grüße
 Thomas


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