Initial OpenJ9 contribution #1
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This is the initial contribution of the OpenJ9 JVM and tests based on IBM's J9 JVM. This project builds in conjungtion with the Eclipse OMR project (https://github.com/eclipse/openj9-omr) and combines with the OpenJDK extensions git mirror (https://github.com/ibmruntimes/openj9-openjdk-jdk9) -- which includes the OpenJ9-specific patches -- to provide a complete JDK. CQs: 14111 OpenJ9 initial contribution 14064 CuTest 1.4 14043 libffi 3.2.1 14045 Eclipse OMR 14047 FreeMarker 2.3.8 14042 MurmurHash3 14044 Unicode 8.0.0 14040 zlib 1.2.3 14046 dlmalloc 2.8.3 14084 testng 6.10.0 14081 java assist 3.12.1 14085 apache-ant-contrib 1.0b1 14087 log4j 2.3 14069 Apache Ant Version: 1.10.1 (PB CQ12750) 14066 junit Version: 4.10 (PB CQ5958) 14068 Apache Commons Exec Version: 1.1 (PB Orbit CQ6786) 14065 ASM 5.0.1 (PB Orbit CQ 8129) (PB CQ8123) 14067 Apache commons-cli Version: 1.2 (PB Orbit CQ 4580) (PB CQ10756) Signed-off-by: Dan Heidinga <[email protected]>
mstoodle
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Sep 13, 2017
tajila
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in tajila/openj9
Oct 2, 2017
Fix invokespecial selection and loading constraints
This was referenced Mar 6, 2018
sjkillen
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to themaplelab/openj9
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Jun 24, 2019
dsouzai
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Aug 29, 2019
…ator Added CMD Options and JVMImage Header
fengxue-IS
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Oct 4, 2019
Signed-off-by: Jack Lu <[email protected]>
Akira1Saitoh
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Nov 7, 2019
Add compensation code to TR_UnloadedClassPicSite for aarch64. This code uses _size member to check if the site is for address materialization sequence. Unlike arm or ppc, the lsb of the mov instruction of aarch64 is used for encoding the target register number. Thus, we cannot simply set lsb of the patch location to invalidate it. If _size is 4, we patch the pic location to `movz rX, eclipse-openj9#1`. Otherwise, we store -1 to the pic location. Signed-off-by: Akira Saitoh <[email protected]>
cathyzhyi
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Feb 24, 2020
…lue-proto Support in ILGen for defaultvalue bytecode instruction
knn-k
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May 30, 2020
This commit removes one instruction from the code generated by asynccheckEvaluator() for AArch64. (mov regY, #-1 + cmp regX, regY -> cmn regX, eclipse-openj9#1) Signed-off-by: KONNO Kazuhiro <[email protected]>
klangman
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Dec 12, 2022
Disable CLassLookahead because it is possible for static final field value to be changes via reflection or the unsafe API. 1. Disable ClassLookahead. Similar to GVP, ClassLookahead is using static analysis of static final field initialization code to provide field information that is later used to make assumptions about the field contents which might not be true if reflection or the unsafe API is used to change static final field values. An environment variable is introduced to allow ClassLookahead to be re-enable. 2. Apply a fix to ClassLookahead so that it does not not generate field information for static final fields that can be initialized with different values on different code paths. This fix is being applied in case the ClassLookahead code is resurrected in the future since `eclipse-openj9#1` above has disabled it globally. 3.Remove the code in IlGen what would replace array length checks with hard coded obj array length values. This code would look for static final fields that contain ClassLookahead fieldInfo and use the existence of that information to permit the inspection of a heap object and replace array length checks with a constant based on the current heap object's array length. This fix is also applied as a safety measure because the disabling of ClassLookahead (`eclipse-openj9#2` above) would effectively disable this code path. In general the only safe way to inspect at compile time heap objects pointed to by static final fields is to us the "Static Final Field Folding" optimization which uses OSR to invalidate any code which made an assumptions based on the contents of a static final field when that fields contents may have been modified by reflection. Signed-off-by: Kevin Langman <[email protected]>
fengxue-IS
added a commit
to fengxue-IS/openj9
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Oct 3, 2023
Signed-off-by: Jack Lu <[email protected]>
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This is the initial contribution of the OpenJ9 JVM and tests
based on IBM's J9 JVM.
This project builds in conjungtion with the Eclipse OMR project
(https://github.com/eclipse/openj9-omr) and combines with the
OpenJDK extensions git mirror
(https://github.com/ibmruntimes/openj9-openjdk-jdk9) -- which
includes the OpenJ9-specific patches -- to provide a complete JDK.
CQs:
14111 OpenJ9 initial contribution
14064 CuTest 1.4
14043 libffi 3.2.1
14045 Eclipse OMR
14047 FreeMarker 2.3.8
14042 MurmurHash3
14044 Unicode 8.0.0
14040 zlib 1.2.3
14046 dlmalloc 2.8.3
14084 testng 6.10.0
14081 java assist 3.12.1
14085 apache-ant-contrib 1.0b1
14087 log4j 2.3
14069 Apache Ant Version: 1.10.1 (PB CQ12750)
14066 junit Version: 4.10 (PB CQ5958)
14068 Apache Commons Exec Version: 1.1 (PB Orbit CQ6786)
14065 ASM 5.0.1 (PB Orbit CQ 8129) (PB CQ8123)
14067 Apache commons-cli Version: 1.2 (PB Orbit CQ 4580) (PB CQ10756)
Signed-off-by: Dan Heidinga [email protected]