[aarch64-port-dev ] [9] RFR (XS) 8051712 regression Test7107135 crashes

[Dean Long]

Looks OK to me.

dl

On 5/24/2015 12:49 PM, Chris Plummer wrote:
> Hello,
>
> Please review the fix for 8051712:
>
> http://cr.openjdk.java.net/~cjplummer/8051712/webrev.00
> https://bugs.openjdk.java.net/browse/JDK-8051712
>
> This fix was already applied to aarch64-port/jdk8, but was missed when 
> aarch64-port was integrated into jdk9. This commit is to the jdk9/dev 
> mainline, not aarch64-port/jdk9.
>
> The issue is that ElfFile::specifies_noexecstack() assumes that if no 
> PT_GNU_STACK record is found, then the platform (loader) defaults to 
> execstack. However, for AARCH64 is defaults to noexecstack. More info 
> can be found in the following discussion.
>
> http://mail.openjdk.java.net/pipermail/aarch64-port-dev/2014-February/000877.html 
>
>
> Also see 7107135 for info on the execstack/noexecstack issue, and why 
> ElfFile::specifies_noexecstack() exists in the first place:
>
> https://bugs.openjdk.java.net/browse/JDK-7107135
>
> Tested by using JPRT to run the test case on all supported platforms. 
> Also ran all default "-testset hotspot" tests on all platforms.
>
> thanks,
>
> Chris