[Bug libgcc/113403] [14 Regression] __builtin_nested_func_ptr_created, __builtin_nested_func_ptr should be dynamically linked by default

[iains at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113403

--- Comment #10 from Iain Sandoe <iains at gcc dot gnu.org> ---
it is an optimisation, yes - but as Richi points out, if we change this it will
affect ABI - so it is ideal to do this before the first release that includes
it?


- IIUC Jakub's suggestion:
 - remove the functions from libgcc.a
 - add a spec to gcc/gcc.cc like 
  %{!static:%(!static-libgcc:%(ftrampoline-impl=heap: -shared-libgcc }}}

So the symbols would be public and in libgcc_s only (unless a target chooses to
do something different).