Re: g++ 3 name mangling

[Carlo Wood <carlo at alinoe dot com>]

On Mon, Mar 04, 2002 at 06:04:35PM +0100, jeroen dobbelaere wrote:
> > void Foo::f(int i) { ... }
> > 
> > extern "C" void stub_Foo_f(Foo* th, int i);
> > inline void stub_Foo_f(Foo* th, int i) { th->f(i); }
> > 
> > and then use stub_Foo_f in the __asm__.
> 
> Problem is that I don't have control over the calling side : the c++ interface is
> fixed. The implementation has to do some very low level things.

I didn't say you need to change the C++ interface,
just write a wrapper for it.  If you can write:

__asm__ {
...
  ..._ZXYZ...
}

then you can also write:

extern "C" void stub(Foo* th);
inline void stub(Foo* th) { th->XYZ(); }

__asm__ {
...
  ...stub...
}

Imho this is the cleanest solution: the compiler will do
the mangling for you.  Optimization will remove the "C" function,
your asm will still call the C++ function directly.

-- 
Carlo Wood <carlo@alinoe.com>