(11) RFR (S) JDK-8198640: VS2017 (LNK4281) Link Warning Against Missed ASLR Optimization

Lois Foltan lois.foltan at oracle.com
Fri Feb 23 20:22:08 UTC 2018


On 2/23/2018 3:18 PM, Christian Tornqvist wrote:

> Hi Lois,
>
> Why do we link jvm.dll with -base?
Hi Christian,
It is not clear to me why we do, so I was going to follow up with an RFE 
to investigate & suggest the removal of -base if unnecessary.
Lois

>
> Thanks,
> Christian
>
>> On Feb 23, 2018, at 3:11 PM, Lois Foltan <lois.foltan at oracle.com> wrote:
>>
>> Please review this fix to ignore linker warning (LNK4281).  This is a new linker warning generated by VS2017 v15.5 to "to point out any 64-bit image specified to link with a lower than 4GB base address doesn't get best ASLR optimization". The Hotspot jvm.dll is specifically linked with -base:0x8000000.  As recommended by https://developercommunity.visualstudio.com/content/problem/160970/upgrading-from-154-to-155-throw-lnk4281-warning.html, this linker warning can be suppressed with -ignore.
>>
>> open webrev at http://cr.openjdk.java.net/~lfoltan/bug_jdk8198640/webrev/
>> bug link https://bugs.openjdk.java.net/browse/JDK-8198640
>>
>> Testing (hs-tier1-3 & jdk-tier1-3) in progress
>>
>> Thanks,
>> Lois
>>
>>



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