From 6088b088ad5cdd020d9299cce01f9bc621a007b5 Mon Sep 17 00:00:00 2001 From: KONNO Kazuhiro Date: Wed, 23 Oct 2019 15:52:53 +0900 Subject: [PATCH] AArch64: Update Build Instructions This commit updates Build Instructions for AArch64 for V11. Signed-off-by: KONNO Kazuhiro --- .../Build_Instructions_V11.md | 20 +++++++++---------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/doc/build-instructions/Build_Instructions_V11.md b/doc/build-instructions/Build_Instructions_V11.md index ae9fe78cb4a..6fa2c7123cd 100644 --- a/doc/build-instructions/Build_Instructions_V11.md +++ b/doc/build-instructions/Build_Instructions_V11.md @@ -652,8 +652,6 @@ JCL - 9da99f8b97 based on jdk-11+28) ## AArch64 -:construction: This section is still under construction. - :penguin: The following instructions guide you through the process of building an **OpenJDK V11** binary that contains Eclipse OpenJ9 for AArch64 (ARMv8 64-bit) Linux. @@ -730,7 +728,7 @@ bash configure --openjdk-target=${OPENJ9_CC_PREFIX} \ --disable-warnings-as-errors ``` -:pencil: **Non-compressed references support:** If you require a heap size greater than 57GB, enable a noncompressedrefs build with the `--with-noncompressedrefs` option during this step. +:pencil: **Non-compressed references support:** If you require a heap size greater than 57GB, enable a noncompressedrefs build with the `--with-noncompressedrefs` option during this step. You need this option to use the JIT compiler regardless of heap size: the JIT does not support compressed references yet. :pencil: **OpenSSL support:** If you want to build an OpenJDK that uses OpenSSL, you must specify `--with-openssl={system|path_to_library}` @@ -764,21 +762,21 @@ cd jdk ``` Run: ``` -bin/java -Xint -version +bin/java -version ``` Here is some sample output: ``` -openjdk version "11.0.2-internal" 2019-01-15 -OpenJDK Runtime Environment (build 11.0.2-internal+0-adhoc..openj9-openjdk-jdk11) -Eclipse OpenJ9 VM (build master-03a061a, JRE 11 Linux aarch64-64-Bit 20190208_000000 (JIT disabled, AOT disabled) -OpenJ9 - 03a061a -OMR - a8ca0e6 -JCL - fd5cc89 based on jdk-11.0.2+7) +openjdk version "11.0.6-internal" 2020-01-14 +OpenJDK Runtime Environment (build 11.0.6-internal+0-adhoc..openj9-openjdk-jdk11) +Eclipse OpenJ9 VM (build master-83baf0b, JRE 11 Linux aarch64-64-Bit 20191204_000000 (JIT enabled, AOT enabled) +OpenJ9 - 83baf0b +OMR - 7b2e5df +JCL - d247952 based on jdk-11.0.6+6) ``` -:pencil: The JIT compiler for AArch64 is not supported at the time of writing this. If you don't disable the JIT compiler with the `-Xint` option, you will see a warning for `libj9jit29.so`. +:construction: AArch64 JIT compiler is not fully optimized at the time of writing this, compared with other platforms. :pencil: **OpenSSL support:** If you built an OpenJDK with OpenJ9 that includes OpenSSL v1.1.x support, the following acknowledgements apply in accordance with the license terms: