Hi,

reposting on serviceability-dev (was core-libs-dev before).

Bug:
https://bugs.openjdk.java.net/browse/JDK-8239856

Webrev:
http://cr.openjdk.java.net/~mdoerr/8239856_win32_long_double_align/webrev.00/

Thanks for the review, Thomas!

Best regards,
Martin


From: Thomas Stüfe <[email protected]>
Sent: Montag, 24. Februar 2020 14:41
To: Doerr, Martin <[email protected]>
Cc: [email protected]; Lindenmaier, Goetz 
<[email protected]>; Langer, Christoph <[email protected]>
Subject: Re: RFR(XS): 8239856: [ntintel] asserts about copying unaligned array 
element

Oh okay. Then it looks okay to me.

Cheers, Thomas

On Mon, Feb 24, 2020 at 12:56 PM Doerr, Martin 
<[email protected]<mailto:[email protected]>> wrote:
Hi Thomas,

thanks for the quick review.

ATTRIBUTE_ALIGNED is defined in hotspot. I can’t use it for 
src/jdk.jdwp.agent/share/native/libjdwp/ArrayReferenceImpl.c.

Christoph had already suggested to make it available for core libs, too, but I 
haven’t found a good place for it.

Best regards,
Martin


From: Thomas Stüfe <[email protected]<mailto:[email protected]>>
Sent: Montag, 24. Februar 2020 12:52
To: Doerr, Martin <[email protected]<mailto:[email protected]>>
Cc: [email protected]<mailto:[email protected]>; 
Lindenmaier, Goetz 
<[email protected]<mailto:[email protected]>>; Langer, 
Christoph <[email protected]<mailto:[email protected]>>
Subject: Re: RFR(XS): 8239856: [ntintel] asserts about copying unaligned array 
element

Hi Martin,

maybe use ATTRIBUTE_ALIGNED instead?

Cheers, Thomas

On Mon, Feb 24, 2020 at 12:44 PM Doerr, Martin 
<[email protected]<mailto:[email protected]>> wrote:
Hi,

we had fixed stack array alignment for Windows 32 bit with JDK-8220348.
However, there are also stack allocated jlong and jdouble used as source for 
SetLongArrayRegion and SetDoubleArrayRegion with insufficient alignment for 
this platform.

Here’s my proposed fix:
http://cr.openjdk.java.net/~mdoerr/8239856_win32_long_double_align/webrev.00/

Please review.

Best regards,
Martin

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