NOTE: This project is on an indefinite hiatus. I will fix any reported bugs, but I am taking a break from actually attempting to continue the bootstrap chain. If someone would like to continue the work here, please make a PR, or let me know about the work so I can point people in the right direction. But, as it stands, this repo is still the only option for bootstrapping up to Java 7 on KISS Linux.
This is a repo that aims to bootstrap Java on KISS Linux, without using precompiled binaries.
My current plan is to stick as close to GNU Guix's java.scm boostrap chain as close as possible. Diagram
The following are currently packaged:
- jikes (1.22)
- gnuclasspath (0.93)
- fastjar (0.98)
- jamvm (1.5.1)
- ant (1.8.4)
- ecj (3.2.2)
- ecj-javac-wrapper
- gnuclasspath (0.99)
- classpath-jamvm-wrappers
- gnuclasspath (git)
- jamvm (2.0.0)
- ecj (4.2.1)
- gcj (6.4.0)
- java-gcj-compat (6.4.0)
- ecj (4.4.2)
- ant (1.8.4)
The following are WIP:
- openjdk7 (6.2.28)
- openjdk8 (3.22.0)
If you have any experience or are able to get a package to compile, please submit a PR or issue! Any and all help is appreciated!
You'll need all of the software packaged under extra/, the unofficial
community repo, as well as access to kiss-xorg.
My current issue when building openjdk8 is a CRC error (full build log here).
What's odd is that when building openjdk7 with itself (not using the icedtea-boot target), a CRC error also occurs. That leads me to think that there is some issue with openjdk7's zip implementation.
UPDATE: this issue seems to have been slightly fixed, by instead using fastjar as the jar implementation during build, however now there are bigger build issues.
When trying to compile openjdk7 with itself, the build fails spectacularly: log
When trying to build openjdk8 with openjdk7, the build also fails: log
The process for installation is almost entirely manual, and I do not recommend
you place any of these repos in your KISS_PATH, since this repo is strictly
intended to be a testing ground and serve as a way to get java binaries starting
from only source code.
These are the three components:
| software | version | desc |
|---|---|---|
| jikes | 1.22 | Java Compiler |
| gnuclasspath | 0.93 | Java Standard Library |
| jamvm | 1.5.1 | Java Virtual Machine |
To build & Install:
cd jdk0
export KISS_PATH="$PWD:$KISS_PATH"
kiss build jikes gnuclasspath jamvm
cd ..JDK 0.5 is effectively a transition JDK, from 0 to 1 (the final bootstrap JDK).
These are the components:
| software | version | desc |
|---|---|---|
| fastjar | 0.98 | Java's jar written in C |
| ant-bootstrap | 1.8.4 | Java build tool |
| ecj | 3.2.2 | Incremental Java Compiler |
| ecj-javac-wrapper | git | Wrapper for ECJ to behave like javac |
| gnuclasspath | 0.99 | Java Standard Library |
To build & Install:
cd jdk0.5
export KISS_PATH="$PWD:$KISS_PATH"
kiss build fastjar ant-bootstrap
sh /etc/profile.d/apache-ant-bootstrap.sh
kiss build ecj ecj-javac-wrapper
kiss build gnuclasspath
cd ..JDK 1 is the second to last bootstrap JDK and is used to compile GCJ (GNU Java Compiler).
| software | version | desc |
|---|---|---|
| classpath-jamvm-wrappers | git | Wrapper for GNUclasspath Java tools |
| jamvm | 2.0.0 | Java Virtual Machine |
| ecj | 4.2.1 | Incremental Java Compiler |
| gnuclasspath | git | Java Standard Library |
To build & Install:
cd jdk1
export KISS_PATH="$PWD:$KISS_PATH"
kiss build classpath-jamvm-wrappers
kiss build gnuclasspath
kiss build jamvm
kiss build ecj
cd ..JDK 2 contains the final bootstrap JDK, that being GCJ. We are able to build it now because we have all of the requisite software built. We also build the latest release of ECJ that we can, and replace ant-bootstrap with ant.
| software | version | desc |
|---|---|---|
| gcj6 | 6.4.0 | GNU Java Compiler |
| java-gcj-compat | 6.4.0 | Alpine's wrapper to have GCJ behave like OpenJDK. |
| ant | 1.8.4 | Java build tool (without environment script) |
| ecj | 4.4.2 | Incremental Java Compiler |
To build & Install:
cd jdk2
export KISS_PATH="$PWD:$KISS_PATH"
kiss build ecj
kiss build gcj6
kiss build java-gcj-compat
kiss remove ant-bootstrap
kiss build ant
cd ..OpenJDK7 is the first OpenJDK that we are able to build and is able to build OpenJDK8 (Java 8).
To build & Install:
#export KISS_PATH="$PWD:$KISS_PATH"
#kiss build openjdk7
# openjdk7's jar implementation is totally busted.
# So we rebuild fastjar, and switch to it for jar.
#kiss b fastjar
#kiss a fastjar /usr/lib/jvm/java-1.7-openjdk/bin/jarWIP. See above.
Useful links:
https://www.reddit.com/r/Gentoo/comments/h96zuq/openjdk_or_icedtea_on_gentoo_musl/
Help is very much appreciated!