IcedTea ======= The IcedTea project provides a harness to build the source code from openjdk.java.net using Free Software tools and dependencies. IcedTea addresses two problems: it eliminates the build requirement on proprietary build tools and provides additional patches and features not available in OpenJDK. IcedTea also provides build scripts and patches that fix a number of issues which are as yet unresolved upstream. See INSTALL for build instructions. Homepage (wiki): https://icedtea.classpath.org/ Bugs (bugzilla): https://icedtea.classpath.org/bugzilla Mailing List: [email protected] https://mail.openjdk.java.net/mailman/listinfo/distro-pkg-dev FAQ: https://icedtea.classpath.org/wiki/FrequentlyAskedQuestions Anonymous Mercurial checkout: hg clone https://icedtea.classpath.org/hg/icedtea Java compatibility ------------------ IcedTea is derived from OpenJDK, an open-source implementation of the Java SE platform. See https://openjdk.java.net/groups/conformance/ for information on compatibility testing. A Note About License Headers ---------------------------- Some sources downloaded from openjdk.java.net do not display the GPL license header. Instances are: - We are assuming that these files are owned by Sun: openjdk/jdk/src/share/classes/**/resources/*.properties The Zero Assembler and Shark Ports ================================== Gary Benson has developed a port of the interpreter included in the HotSpot virtual machine which avoids using any assembly language. As a pure C++ interpreter, it should be possible to build this on most architectures and have a working (albeit slow) version of OpenJDK. Successful builds have been made on ppc, ppc64 and arm. The zero assembler port is enabled by default on platforms other than x86, x86_64 and sparc. To enable it on these platforms, use the --enable-zero option. Gary is now working on a JIT called Shark to provide better performance on platforms which need to use the zero port. A preliminary version of this is now included with IcedTea and can be built with the --enable-shark option. CACAO as VM =========== The CACAO virtual machine (http://www.cacaovm.org) can be used as an alternative to the HotSpot virtual machine. One advantage of this is that it already provides a JIT for many platforms to which HotSpot has not yet been ported, including ppc, ppc64, arm and mips. To use CACAO as the VM, use the --with-cacao option. This will download a snapshot of CACAO during the build, which has been tested with this version of IcedTea7. The environment variable CACAO_CONFIGURE_ARGS can be used to pass additional arguments to the cacao configure. PulseAudio Mixer ================ Passing --enable-pulse-java to configure will build the PulseAudio Mixer for java. This allows java programs to use PulseAudio as the sound backend. SystemTap Support ================= configure will try to find the systemtap runtime development files (sdt.h and the dtrace python script wrapper), enable compilation of static markers in the hotspot code and install a systemtap hotspot.stp tapset for easy tracing with systemtap's stap utility. The probes are documented in tapset/hotspot.stp. This requires the systemtap-sdt-devel package as a build dependency and optionally the systemtap package at run time when the user want to use the tapset to trace Java programs. The probes have zero overhead when not used and can safely be compiled in even when not used at runtime. Support for Additional VMs ========================== Although IcedTea can be built multiple times to use a different virtual machine, additional VMs can be built without building the other components multiple times. On architectures where hotspot is available, use --with-additional-vms=cacao,zero (or shark instead of zero) on architectures where only zero (or shark) is available, use --with-additional-vms=cacao to build the additional VM's. It's not possible to build cacao as the default VM, and zero as additional VM. To build zero as the default VM and shark as an additional VM, use --enable-zero --with-additional-vms=shark The additional VM's are available by calling the java with the option `-cacao', `-zero' or `-shark', or by calling the java tools with `-J-'. If the build was configured with '--enable-shark', use `-Xint' to just use the zero VM.
A harness to build the source code from openjdk.java.net using Free Software tools and dependencies
Overview
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Comments
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GH003: Import ECC test patch from Zdeněk Žamberský
2022-07-12 Andrew John Hughes [email protected]
GH003: Import ECC test patch from Zdeněk Žamberský * NEWS: Fix issue reference. * fsg.sh.in: Update references to ECC patches. * patches/gh002-3curve-test.patch, * patches/gh002-4curve-test.patch: Renamed to... * patches/gh003-3curve-test.patch, * patches/gh003-4curve-test.patch: ...as GitHub numbers both pull requests and issues from the same sequence.
Resolves: #3
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GH002: Import ECC test patch from Zdeněk Žamberský
2022-07-12 Andrew John Hughes [email protected]
* AUTHORS: Add Zdeněk Žamberský. * NEWS: Updated. * fsg.sh.in: Update references to ECC patches. * patches/gh001-3curve.patch, * patches/gh001-4curve.patch: Remove changes to tests, now moved to gh002* test patches. * patches/gh002-3curve.patch, * patches/gh002-4curve.patch: Use a separate patch for tests and include additional cases from work by Zdeněk.
Resolves: #2
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Import ECC test patch from Zdeněk Žamberský
https://src.fedoraproject.org/rpms/java-11-openjdk/pull-request/156
We'll include the test patch as is for now in 6.0, but some of it should go upstream and to other releases.
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GH001: Update ECC patches following JDK-8226374
2022-07-04 Andrew John Hughes [email protected]
* NEWS: Updated. * patches/gh001-3curve.patch: Renamed from pr3818-3curve.patch. Updated to apply after JDK-8226374, including removal of unsupported curve from jdk.tls.disabledAlgorithms. * patches/gh001-4curve.patch: Likewise for the 4 curve version, renamed from pr3818-4curve.patch
Fixes: #1
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