On Wed, Sep 28, 2016 at 8:07 PM, Joseph Myers <jos...@codesourcery.com> wrote: > On Wed, 28 Sep 2016, Yichao Yu wrote: > >> >> Except where an external ABI defines things like that, the normal >> >> expectation for libgcc functions is that they have the same ABI as for an >> >> ordinary C function with the same prototype. That is, since libgcc.texi >> >> gives a prototype for __powidf2 without saying anything special about its >> >> ABI, and since it is not a function defined in RTABI, it can be taken to >> > >> > I guess other ppl on the list probably know this but what's the list >> > of function in RTABI? >> >> Is it >> http://infocenter.arm.com/help/topic/com.arm.doc.ihi0043d/IHI0043D_rtabi.pdf >> ? > > Yes, that's the right document. Specifically, section 4.1.2, which > defines the floating-point functions that always use the base ABI.
I've just started reading 4.1.1 =) Got it. Thanks very much for the fast answer! Yichao Yu > > -- > Joseph S. Myers > jos...@codesourcery.com