OpenJDK7 port to the little endian PowerPC64
Alexander Smundak
asmundak at google.com
Wed Mar 12 20:18:13 UTC 2014
Thanks, will publish updated make/linux/makefiles/ppc64le.make
for the next patch revision (I am waiting for additional comments
about the comparative merits of keeping make machinery for
PPC64 and PPC64LE separate or consolidated.)
On Wed, Mar 12, 2014 at 11:48 AM, Tiago Sturmer Daitx
<tdaitx at linux.vnet.ibm.com> wrote:
> On Fri, 2014-03-07 at 11:45 -0800, Alexander Smundak wrote:
>> On Fri, Mar 7, 2014 at 9:01 AM, Volker Simonis <volker.simonis at gmail.com> wrote:
>> > Regarding "-mtune=power7" I'm not sure. Are you absolutely sure that all
>> > ppc64le distros will only ever run on Power7 and above? If yes, you could
>> > put the "-mtune=power7" flag into the PPC64_ENDIANNESS=little section and
>> > move the "-mtune=power5" flag into the else branch.
>> I don't think it's possible to boot ppc64le distro on anything less then Power7.
>
> PPC64 LE will work for Power 8 and above since Power8 will be a
> prerequisite for ELFv2 ABI. The architecture level should be set to
> Power8 for instruction selection and scheduling (i.e, "-mcpu=power8" or
> "-mcpu=power7 -mtune=power8" as default) when the ELFv2 ABI is selected.
>
> Regards,
> Tiago Daitx
>
> --
> Tiago Sturmer Daitx
> Linux Technology Center [LTC|IBM]
> tdaitx at linux.vnet.ibm.com
>
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