[patch] add zero support for x86_64-linux-gnux32 target
david.holmes at oracle.com
Mon Sep 5 23:01:59 UTC 2016
Hi Severin, Matthias,
On 5/09/2016 10:16 PM, Severin Gehwolf wrote:
> On Mon, 2016-09-05 at 14:03 +0200, Matthias Klose wrote:
>> The attached patch adds support for building zero for the x86_64-
>> target, having changes in the build system, hotspot and jdk.
>> - the build system currently only derives the target from
>> the cpu in PLATFORM_EXTRACT_VARS_FROM_CPU; that is not enough
>> for the new target, which only differs by the ending of the
>> triplet. However the $host macro should be available anywhere.
>> - the hotspot part just handles the new "cpu"
>> - GensrcX11Wrappers.gmk assumes that there is a black/white
>> decision about -m32/-m64. The patch works around it. However
>> the real patch should be to get these flags from the build
>> system, and not hardcode itself.
>> - the sysctl system call is unsupported in the x32 kernel, and
>> just the include leads to a build error. From my point of view
>> the header is not needed. I had successful builds on all other
>> targets without including it. If you want to keep the include,
>> then it should be guarded with
>> #if !(defined(_ILP32) && defined(__x86_64__))
> I've filed this bug for this:
Please note that as a P4 issue this can not be fixed given we have hit RDP1:
Further this is filed as "bug" but seems to clearly be an enhancement,
so you would need approval for it to come in post-Feature-Complete.
Please consider if this is something that must be fixed for 9 or can be
deferred. Otherwise you will need to follow additional approval processes.
David (just the messenger!)
> Unfortunately, I have no way of testing it.
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