AArch64: jaotc generates incorrect code for compressed OOPs with non-zero heap base #2446
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…zero heap base On AArch64 if the VM jaotc is running in uses compressed oops with a zero base it will not emit instructions to add/subtract the heap base when compressing/decompressing oops. This causes a crash if the AOT'd shared library is loaded into a VM with non-zero heap base. Fix for JDK-8244164. Change-Id: I9983f6ac81b5ef4a91ce595f61455b90ba1546c3
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Hello Nick Gasson, thanks for contributing a PR to our project! We use the Oracle Contributor Agreement to make the copyright of contributions clear. We don't have a record of you having signed this yet, based on your email address nick -(dot)- gasson -(at)- arm -(dot)- com. You can sign it at that link. If you think you've already signed it, please comment below and we'll check. |
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I'm covered by the OCA signed by Arm Limited |
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Nick Gasson has signed the Oracle Contributor Agreement (based on email address nick -(dot)- gasson -(at)- arm -(dot)- com) so can contribute to this repository. |
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Any feedback on this? There's a jtreg test that can reproduce this issue here: http://cr.openjdk.java.net/~ngasson/8244164/webrev.0/test/hotspot/jtreg/compiler/aot/TestHeapBase.java.html |
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I'm putting this through the integration process now. |
…s with non-zero heap base (#2446). PullRequest: graal/6270
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On AArch64 if the VM jaotc is running in uses compressed oops with a
zero base it will not emit instructions to add/subtract the heap base
when compressing/decompressing oops. This causes a crash if the AOT'd
shared library is loaded into a VM with non-zero heap base.
Fix for JDK-8244164.