Set up macos machines to be able to build OpenJ9

[sxa]

Instructions to follow via @groeges - plan would be to intiially apply this to https://ci.adoptopenjdk.net/computer/build-macstadium-macos1010-2/ to validate there are no side effects before deploying on the other build machine.

Ref support being added under eclipse-openj9/openj9#36

[groeges]

Setup of Mac OS system for build of OpenJDK with OpenJ9

System needs to have the following code installed on it:

• Xcode 4.6.2 required (installed in /Applications/Xcode4/
• nasm 2.13.03 required (install using brew)
• bash 4.4.23 required (install using brew)
• freemarker.jar 2.3.8 required (install using wget)

For JDK8 only
export MACOSX_DEPLOYMENT_TARGET=10.8
export SDKPATH=/Applications/Xcode4/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk
export UMA_SUPPRESS_WARNINGS_AS_ERRORS=1
export OMR_WARNINGS_AS_ERRORS=1

Download the code from Github.com and make JDK
For JDK8

• change into a directory to which the code should be downloaded.
• run commands
  • git clone https://github.com/ibmruntimes/openj9-openjdk-jdk8.git
  • cd openj9-openjdk-jdk8
  • bash ./get_source.sh
  • bash ./configure --with-xcode-path=/Applications/Xcode4/Xcode.app —with-freemarker-jar=<path to freemarker.jar> --with-noncompressedrefs
  • make images

For JDK11

• change into a directory to which the code should be downloaded.
• run commands
  • git clone https://github.com/ibmruntimes/openj9-openjdk-jdk11.git
  • cd openj9-openjdk-jd11
  • bash ./get_source.sh
  • bash configure —with-freemarker-jar=<path to freemarker.jar> —with-boot-jdk=<path to jdk11> —disable-warnings-as-erorrs
  • make images

[groeges]

JDK11 build completes successfully (on my local Yosemite system)
JDK8 build does not build successfully. Still has errors which are being worked on.

[sxa]

Will start work on configuring https://ci.adoptopenjdk.net/computer/build-macstadium-macos1010-2/ tomorrow

[sxa]

brew install nasm has brought it up from 0.98.40 to 2.13.03 (Had to chown Administrator /usr/local/man/man3 as it couldn't write to there - other /usr/local/man/man? directories were already owned by Administrator but man3 was root)

[sxa]

Passing on JDK11: https://ci.adoptopenjdk.net/job/build-scripts/job/jobs/job/jdk11/job/jdk11-mac-x64-openj9/

OpenJ9 team still have issues to work out for JDK8 - leaving this open until that has been resolved.

[groeges]

@sxa555 The OpenJ9 team have now got the JDK 8 build working on Mac OS.
There are some additional pre-requisite code that needs to be installed.
This is documented at the top of this issue: eclipse-openj9/openj9#3323

[sxa]

brew install gcc49
brew install gnu-sed
brew install gnu-tar

This left me with: xcrun: error: missing DEVELOPER_DIR path: /Applications/Xcode7/Xcode.app/Contents/Developer
Fixed with:

sudo mkdir /Applications/Xcode7
sudo ln -s /Applications/Xcode.app.7.2.1 /Applications/Xcode7/Xcode.app

Then this showed up:

/Applications/Xcode.app.7.2.1/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libffi.a(sysv.o) has no symbols
In file included from /usr/include/dispatch/dispatch.h:51:0,
                 from ../omr/include_core/./unix/thrdsup.h:91,
                 from ../omr/include_core/thrdsup.h:35,
                 from ../omr/include_core/thrtypes.h:32,
                 from ObjectMonitor.cpp:28:
/usr/include/dispatch/object.h:143:15: error: expected unqualified-id before '^' token
 typedef void (^dispatch_block_t)(void);
               ^
/usr/include/dispatch/object.h:143:15: error: expected ')' before '^' token
/usr/include/dispatch/object.h:362:3: error: 'dispatch_block_t' has not been declared
   dispatch_block_t notification_block);
   ^
make[3]: *** [ObjectMonitor.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[3]: *** [DebugBytecodeInterpreter.o] Interrupt: 2
make[2]: *** [j9vm] Interrupt: 2
make[1]: *** [build-j9] Interrupt: 2
make: *** [j9vm-build] Interrupt: 2
Process exited

Resolved via the change in the openj9 instructions to edit line 143 of /usr/include/dispatch/object.h and replace with:

#ifdef __clang__
typedef void (^dispatch_block_t)(void);
#else
typedef void* dispatch_block_t;
#endif

PR now in to set the appropriate variables.