Where to set correct value for tdep->struct_return for Cygwin?

[Corinna Vinschen <vinschen at redhat dot com>]

Hi,

I just found the following problem:

In i386-tdep.c::i386_gdbarch_init(), tdep->struct_return is set to
pcc_struct_return by default.  Several i386 targets set this value
in their appropriate _init function to reg_struct_return (e. g. the
bsd and interix targets). 

Cygwin is using reg_struct_return as well but unfortunately in contrast
to Interix it has no own tdep.c file and so there's no appropriate _init
function as e. g. i386_interix_init_abi() available to set that value.  
This results in having tdep->struct_return still set to pcc_struct_return
and about 25 fails in the testsuite.

So the question is, where to set that value?  Shall we add a new cygwin-tdep.c
file, just to set this one value?  Or is there some already existing obvious
place to do this?  win32-nat.c seems to be not a good chice, btw.

Corinna

-- 
Corinna Vinschen
Cygwin Developer
Red Hat, Inc.
mailto:vinschen at redhat dot com