On Mon, Sep 09, 2019 at 11:16:44PM +0200, Bruno Haible via cfarm-users wrote:
> Paulo César Pereira de Andrade wrote:
> > When testing on gcc110.fsffrance.org I got confused as there were no
> > function descriptors, and the float abi to call varargs functions did
> > not match.
>
> Indeed, function descriptors are a difference between the ABIs as well:
>
> On powerpc-aix and powerpc64-aix, a function pointer is actually a pointer to
> a
> struct {
> void* code_address;
> void* toc_pointer; /* gets loaded into register r2 */
> void* static_chain; /* gets loaded into register r11 */
> }.
The third entry is the environment pointer and isn't used normally.
> Likewise on powerpc64-linux (but not on powerpc-linux and
> not on powerpc64-elfv2-linux!).
I think you mean powerpc64le-linux?
(ELFv2 does exist for BE as well, but no distro ships it, and nothing much
is established for it, including its canonical triple. It cannot be
powerpc64-elfv2-linux though, that would put elfv2 as the vendor field).
Segher
_______________________________________________
cfarm-users mailing list
[email protected]
https://lists.tetaneutral.net/listinfo/cfarm-users
