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From: "klaus.doldinger64 at googlemail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/106997] New: Use coroutines on avr-gcc
Date: Wed, 21 Sep 2022 13:40:33 +0000
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X-Bugzilla-Component: c++
X-Bugzilla-Version: 13.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106997

            Bug ID: 106997
           Summary: Use coroutines on avr-gcc
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: klaus.doldinger64 at googlemail dot com
  Target Milestone: ---

I tried to use coroutines with avr-gcc (13.0.0) for the AVR target. I manag=
ed
to include the coroutine-header and to write a very simple generator using =
the
example from cppreference.

It compiles well, but then I get undefined symbols:

1) new and delete operator-functions
2) f(f()::f().Frame*)

Therefore two question arise here:

a) is it possible to use coroutines without head-allocation? E.g. define so=
me
global storage for the state of the coroutine?
b) if a) can be fullfilled, what is 2) supposed to do?=