Build Infrastructure Project

This Project is sponsored by the Build Group.

The primary goals of this project is a complete rewrite of the OpenJDK makefiles so that we:

improve build performance significantly
normalize the makefiles and share common build logic
provide correct build target dependency information so that 'make -j N' will work in all cases
significantly reduce the use of nested makes
allow for correct and reliable incremental builds
accurately document the build dependencies and allow for easy and simple installs to local disks of those dependencies
allow for easier cross compile builds and 32bit builds on 64bit systems

Repositories

The repositories for this work can be obtained with:

There are some very basic build rules we would like to set down:

All generated files need to be kept isolated from the files maintained or managed by the source control system.
The default build process should be to build the product and nothing else, in one form, e.g. a product, debug, or fastdebug version.
The .hgignore file in each repository must exist and should: include ^build/, ^dist/ and optionally any nbproject/private directories. It should NEVER include anything in the src/ or test/ or any managed directory area of a repository.
Directory names should never contain blanks or non-printing characters
Generated source or binary files should NEVER be added to the repository (that includes javah output)
Files not needed for typical building or testing of the repository should not be added to the repository.
All build dependencies must be specified for all targets.
Where necessary, and when re-generating targets from rules, great care should be taken to avoid updating file timestamps when the target's actual results have not changed.