Rainer Orth <r...@cebitec.uni-bielefeld.de> writes:
> Ian Lance Taylor <i...@google.com> writes:
>
>> I guess ARCH == mips64 is going to be appropriate for any 64-bit MIPS
>> target. If you need a different syscall_linux_${GOARCH} file for
>> different mips64 targets, then I think we're going to need to test some
>> conditional in libgo/Makefile.am to add the file to build. E.g., look
>> at syscall_filesize_file.
>
> This is the same difference as between sparc and sparc64/sparcv9: while
> all recent SPARC CPUs are capable of executing 64-bit insns, there's
> both a 32-bit ABI (sparc) and a 64-bit one (sparcv9/sparc64).
>
> On MIPS (at least IRIX and obviously Linux/MIPS as well), you have two
> 32-bit ABIs (O32 and N32) and one 64-bit one (N64), on other systems
> there's also O64.
>
> It again comes down to what GOARCH is supposed to mean: an ABI, or what
> else?
That's a good point. I guess it has to mean an ABI. So we should be
using different values for the different MIPS ABIs.
Ian
