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June 2013

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Re: [aarch64-port-dev ] aarch64-port-dev Digest, Vol 4, Issue 1
by Andrea Gallo 17 Jun '13

17 Jun '13

-- Andrea Gallo Director, Linaro Enterprise Group Mobile: +39 338 4075993 <+39%20338%204075993> IRC: agallo@#linaro on irc.linaro.org Skype: agallo70 On 17/giu/2013, at 21:01, "aarch64-port-dev-request(a)openjdk.java.net" < aarch64-port-dev-request(a)openjdk.java.net> wrote: Send aarch64-port-dev mailing list submissions to aarch64-port-dev(a)openjdk.java.net To subscribe or unsubscribe via the World Wide Web, visit http://mail.openjdk.java.net/mailman/listinfo/aarch64-port-dev or, via email, send a message with subject or body 'help' to aarch64-port-dev-request(a)openjdk.java.net You can reach the person managing the list at aarch64-port-dev-owner(a)openjdk.java.net When replying, please edit your Subject line so it is more specific than "Re: Contents of aarch64-port-dev digest..." Today's Topics: 1. OpenJDK8/Zero cross compile build for Foundation model (Edward Nevill) ---------------------------------------------------------------------- Message: 1 Date: Mon, 17 Jun 2013 13:50:24 +0100 From: Edward Nevill <ed(a)camswl.com> Subject: [aarch64-port-dev ] OpenJDK8/Zero cross compile build for Foundation model To: aarch64-port-dev(a)openjdk.java.net Message-ID: <51BF0610.9020000(a)camswl.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi all, I have got a cross compile build of OpenJDK8/Zero working for the ARM foundation model (ARM's aarch64 simulator). I have made binaries of the images available should people wish to try this out directly, and I have also included details on how to build from the source below. Firstly the build in OpenJDK8 has been changed completely. The top level jdk8 directory now contains a ./configure. This has a --with-jvm-variants= argument. From jdk8-b85 onwards it is possible to build zero out of the box by simply doing ./configure --with-jvm-variants=zero make The support for cross compiling also seems to have been vastly improved. The following options are available to ./configure. --with-sys-root= <location of your cross compile sysroot> --openjdk-target= <cross compile 'target'> Armed with these options, a properly configured sysroot and a few patches as given below it was possible to get OpenJDK cross compiling for aarc64 with relatively little difficulty. Well done to those who worked on the new build system in OpenJDK8 - it is a vast improvement. Setting up and running the binaries ----------------------------------------------- First of all I will described how you can download the Foundation model (ARM's aarch64 simulator) and get a Java binary up and running. Note: In all of the below I am running Fedora 18 x86 64 bit. Your mileage on other OS/Distro may vary. First of all you will need to download the foundation model from ARM's website at http://www.arm.com/products/tools/models/fast-models/foundation-model.php At the bottom of the page under "Get started with Foundation Models" click on "download now". You will be asked to login. If you have prevously registered for an ARM account login, otherwise you will need to check the license terms, ensure that you are happy with them and register for an ARM account. After logging in above, on the right hand side of the next page under "ARM V8 Foundation Model" click "Download Now". The name of the file I downloaded was "FM000-KT-00035-r0p8-48rel5.tgz". Obviously the name of the file you download may differ depending on the version number you download, but if you want to download exactly the same version number you can look for it under "Display older versions". Untar this archive. It will create a directory 'Foundation_v8pkg'. cd to this directory tar xfz FM000-KT-00035-r0p8-48rel5.tgz cd Foundation_v8pkg Next you will need to download a boot image and an SD disk image. To download the boot image do wget http://releases.linaro.org/13.05/openembedded/aarch64/img-foundation.axf The SD disk image may be downloaded from http://people.linaro.org/~edward.nevill/sd.img.gz Decompress it using gzip -d sd.img.gz To boot the image in the foundation model do ./models/Linux64_GCC-4.1/Foundation_v8 --image img-foundation.axf --block-device sd.img --network=nat Now, an xterm window will open and Linux will boot in the aarch64 simulator. After a short while you will get the root '#' prompt. The root home directory has been pre populated with the following # ls Queens.class Queens.java ecm j2re-image j2sdk-image Some things you can try. In each case be prepared to wait, it hasn't crashed, it is running under a simulator. ./jsdk-image/bin/javac Queens.java ./j2re-image/bin/java Queens cd ecm ../j2re-image/bin/java CaffeineMarkEmbeddedApp If you want to download more Java programs to you image follow the instructions at the end of the next section for mounting the sd.img on your host. Please be careful to shut down the simulator properly before mounting the file system on your host machine. Otherwise you *will* corrupt the filesystem! To shutdown the simulator do shutdown -h now Then, when the simulator says "system halted" use CTRL-C to stop it. Building the OpenJDK8/zero image ---------------------------------------------- For convenience I have provided a complete build tree and a populated sysroot below. Details of how to fetch and patch the OpenJDK8 source, and how to build your own sysroot are given later, but to get started you may find it more convenient just to download the images below. The OpenJDK8 source tree:- http://people.linaro.org/~edward.nevill/aa64_openjdk_130606.tar.gz The sysroot http://people.linaro.org/~edward.nevill/sysroot.tar.gz Untar the 1st achive aa64_openjdk_130606.tar.gz. This will create a directory aa64_openjdk. cd to that directory and untar the 2nd archive, sysroot.tar.gz. tar xfz ~/Downloads/aa64_openjdk_130606.tar.gz cd aa64_openjdk tar xfz ~/Downloads/sysroot.tar.gz Then just execute the 'do_configure' and 'do_compile' scripts contained in the aa64_openjdk directory and all being well, some time later, you should have a j2sdk and a j2re image. ./do_configure ./do_compile 2>&1 | tee log To transfer the compiled j2sdk and 2re images to the SD card image do the following. Be very careful to shut down the simulator before attempting the following. If you attempt to mount the sd.img file as described below, while you are running a simulator which also has it mounted you *will* corrupt the filesystem. sudo mount -o loop,offset=54525952 sd.img /mnt sudo cp -r <...>/aa64_openjdk/jdk8/build/linux-aarch64-normal-zero-release/j2sdk-image /mnt/home/root sudo cp -r <...>/aa64_openjdk/jdk8/build/linux-aarch64-normal-zero-release/j2re-image /mnt/home/root sudo umount /mnt You may then reboot the simulator with the upated image as described above. Rebuilding from scratch -------------------------------- To rebuild from scratch you will first of all need to build and populate a sysroot. The easiest way to do this is to use Open Embedded. mkdir fromscratch cd fromscratch git clone git://git.linaro.org/openembedded/jenkins-setup.git cd jenkins-setup bash init-and-build.sh cd openembedded-core source oe-init-build-env ../build bitbake -k openjdk-7-jre Note: The reason for doing openjdk-7-jre is that we want to ensure that all the packages required to build openjdk are included in the sysroot. We are not actually going to use openjdk-7-jre in the build. The above command will take several hours. Now cd to the 'fromscratch' directory created above. cd ~/fromscratch Create a symbolic link to the sysroots created in the Open Embedded build above ln -s jenkins-setup/build/tmp-eglibc/sysroots sysroots Download the OpenJDK source from openjdk.java.net hg clone http://hg.openjdk.java.net/jdk8/jdk8 cd jdk8 sh ./get_source.sh Update everything to jdk8-b92 sh ./common/bin/hgforest.sh up -r jdk8-b92 Download and untar the patches http://people.linaro.org/~edward.nevill/patches.tar cd ~/fromscratch tar xf patches.tar cd jdk8 patch -p 1 < ../patches/jdk8_patches cd jdk patch -p 1 < ../../patches/jdk_patches cd ../hotspot patch -p 1 < ../../patches/hotspot_patches Download the 'do_configure' and 'do_compile' scripts. First make sure you cd to the ~/fromscratch directory above. cd ~/fromscratch http://people.linaro.org/~edward.nevill/do_configure http://people.linaro.org/~edward.nevill/do_compile Then execute do_configure and do_compile bash do_configure bash do_compile 2>&1 | tee log All being well, within a few minutes you should have a j2sdk and j2re image! If you run into difficulties with any of this please drop me an email. All the best, Edward Nevill End of aarch64-port-dev Digest, Vol 4, Issue 1 **********************************************

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OpenJDK8/Zero cross compile build for Foundation model
by Edward Nevill 17 Jun '13

17 Jun '13

Hi all, I have got a cross compile build of OpenJDK8/Zero working for the ARM foundation model (ARM's aarch64 simulator). I have made binaries of the images available should people wish to try this out directly, and I have also included details on how to build from the source below. Firstly the build in OpenJDK8 has been changed completely. The top level jdk8 directory now contains a ./configure. This has a --with-jvm-variants= argument. From jdk8-b85 onwards it is possible to build zero out of the box by simply doing ./configure --with-jvm-variants=zero make The support for cross compiling also seems to have been vastly improved. The following options are available to ./configure. --with-sys-root= <location of your cross compile sysroot> --openjdk-target= <cross compile 'target'> Armed with these options, a properly configured sysroot and a few patches as given below it was possible to get OpenJDK cross compiling for aarc64 with relatively little difficulty. Well done to those who worked on the new build system in OpenJDK8 - it is a vast improvement. Setting up and running the binaries ----------------------------------------------- First of all I will described how you can download the Foundation model (ARM's aarch64 simulator) and get a Java binary up and running. Note: In all of the below I am running Fedora 18 x86 64 bit. Your mileage on other OS/Distro may vary. First of all you will need to download the foundation model from ARM's website at http://www.arm.com/products/tools/models/fast-models/foundation-model.php At the bottom of the page under "Get started with Foundation Models" click on "download now". You will be asked to login. If you have prevously registered for an ARM account login, otherwise you will need to check the license terms, ensure that you are happy with them and register for an ARM account. After logging in above, on the right hand side of the next page under "ARM V8 Foundation Model" click "Download Now". The name of the file I downloaded was "FM000-KT-00035-r0p8-48rel5.tgz". Obviously the name of the file you download may differ depending on the version number you download, but if you want to download exactly the same version number you can look for it under "Display older versions". Untar this archive. It will create a directory 'Foundation_v8pkg'. cd to this directory tar xfz FM000-KT-00035-r0p8-48rel5.tgz cd Foundation_v8pkg Next you will need to download a boot image and an SD disk image. To download the boot image do wget http://releases.linaro.org/13.05/openembedded/aarch64/img-foundation.axf The SD disk image may be downloaded from http://people.linaro.org/~edward.nevill/sd.img.gz Decompress it using gzip -d sd.img.gz To boot the image in the foundation model do ./models/Linux64_GCC-4.1/Foundation_v8 --image img-foundation.axf --block-device sd.img --network=nat Now, an xterm window will open and Linux will boot in the aarch64 simulator. After a short while you will get the root '#' prompt. The root home directory has been pre populated with the following # ls Queens.class Queens.java ecm j2re-image j2sdk-image Some things you can try. In each case be prepared to wait, it hasn't crashed, it is running under a simulator. ./jsdk-image/bin/javac Queens.java ./j2re-image/bin/java Queens cd ecm ../j2re-image/bin/java CaffeineMarkEmbeddedApp If you want to download more Java programs to you image follow the instructions at the end of the next section for mounting the sd.img on your host. Please be careful to shut down the simulator properly before mounting the file system on your host machine. Otherwise you *will* corrupt the filesystem! To shutdown the simulator do shutdown -h now Then, when the simulator says "system halted" use CTRL-C to stop it. Building the OpenJDK8/zero image ---------------------------------------------- For convenience I have provided a complete build tree and a populated sysroot below. Details of how to fetch and patch the OpenJDK8 source, and how to build your own sysroot are given later, but to get started you may find it more convenient just to download the images below. The OpenJDK8 source tree:- http://people.linaro.org/~edward.nevill/aa64_openjdk_130606.tar.gz The sysroot http://people.linaro.org/~edward.nevill/sysroot.tar.gz Untar the 1st achive aa64_openjdk_130606.tar.gz. This will create a directory aa64_openjdk. cd to that directory and untar the 2nd archive, sysroot.tar.gz. tar xfz ~/Downloads/aa64_openjdk_130606.tar.gz cd aa64_openjdk tar xfz ~/Downloads/sysroot.tar.gz Then just execute the 'do_configure' and 'do_compile' scripts contained in the aa64_openjdk directory and all being well, some time later, you should have a j2sdk and a j2re image. ./do_configure ./do_compile 2>&1 | tee log To transfer the compiled j2sdk and 2re images to the SD card image do the following. Be very careful to shut down the simulator before attempting the following. If you attempt to mount the sd.img file as described below, while you are running a simulator which also has it mounted you *will* corrupt the filesystem. sudo mount -o loop,offset=54525952 sd.img /mnt sudo cp -r <...>/aa64_openjdk/jdk8/build/linux-aarch64-normal-zero-release/j2sdk-image /mnt/home/root sudo cp -r <...>/aa64_openjdk/jdk8/build/linux-aarch64-normal-zero-release/j2re-image /mnt/home/root sudo umount /mnt You may then reboot the simulator with the upated image as described above. Rebuilding from scratch -------------------------------- To rebuild from scratch you will first of all need to build and populate a sysroot. The easiest way to do this is to use Open Embedded. mkdir fromscratch cd fromscratch git clone git://git.linaro.org/openembedded/jenkins-setup.git cd jenkins-setup bash init-and-build.sh cd openembedded-core source oe-init-build-env ../build bitbake -k openjdk-7-jre Note: The reason for doing openjdk-7-jre is that we want to ensure that all the packages required to build openjdk are included in the sysroot. We are not actually going to use openjdk-7-jre in the build. The above command will take several hours. Now cd to the 'fromscratch' directory created above. cd ~/fromscratch Create a symbolic link to the sysroots created in the Open Embedded build above ln -s jenkins-setup/build/tmp-eglibc/sysroots sysroots Download the OpenJDK source from openjdk.java.net hg clone http://hg.openjdk.java.net/jdk8/jdk8 cd jdk8 sh ./get_source.sh Update everything to jdk8-b92 sh ./common/bin/hgforest.sh up -r jdk8-b92 Download and untar the patches http://people.linaro.org/~edward.nevill/patches.tar cd ~/fromscratch tar xf patches.tar cd jdk8 patch -p 1 < ../patches/jdk8_patches cd jdk patch -p 1 < ../../patches/jdk_patches cd ../hotspot patch -p 1 < ../../patches/hotspot_patches Download the 'do_configure' and 'do_compile' scripts. First make sure you cd to the ~/fromscratch directory above. cd ~/fromscratch http://people.linaro.org/~edward.nevill/do_configure http://people.linaro.org/~edward.nevill/do_compile Then execute do_configure and do_compile bash do_configure bash do_compile 2>&1 | tee log All being well, within a few minutes you should have a j2sdk and j2re image! If you run into difficulties with any of this please drop me an email. All the best, Edward Nevill

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