------- Comment #4 from aran at 100acres dot us 2009-03-28 01:34 ------- Subject: Re: cabs and cabsf are named differently on NetBSD 5
What is beyond me is how darwin_patch_builtings gets called. It looks like it is called from rs6000.c in rs6000_init_builtins via the macro SUBTARGET_INIT_BUILTINS. i386.c doesn't appear to have this infrastructure. I am not familiar enough with gcc internals to know what the impacts might be on other platforms if I start making changes here. Also, these renames are only for NetBSD 5. How do I detect the os version. The darwin example uses darwin_macosx_version_min. Is there a NetBSD analog? Aran On Friday 27 March 2009 18:02:48 steven at gcc dot gnu dot org wrote: > ------- Comment #3 from steven at gcc dot gnu dot org > 2009-03-28 01:02 ------- Completely beyond you, how? > > What gcc does for darwin (and this is a hack, mind you), > is basically replace the standard C99 builtins with > darwin-specific ones. You have to do the same for > NetBSD. > > See the following files in gcc/config/: > * darwin.c > * darwin-ppc-ldouble-patch.def > > The code in darwin_patch_builtin() changes the assembler > name of the builtin function to a custom, darwin-specific > version. E.g. cabsl has a PATCH_BUILTIN defines, so its > DECL_NAME is the normal cabls name but its assembler name > becomes _cabsl_$LDBL128. > > You need to do something similar (but probably less ugly) > for NetBSD to make this work. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39570
