Project Proposal: Build Infrastructure Changes

Kelly O'Hair kelly.ohair at oracle.com
Mon Apr 25 23:12:47 UTC 2011


I looked at it, and I'm not convinced it provides a great deal of benefits over GNU make 3.81.
It seems to be missing anything with regards to dealing with building a jdk image
(where there are 2 JDKs involved or a langtools javac building situation).
The JNI support seemed limited. And I saw nothing to help with getting accurate Java recompilation
when java sources change.

Bottom line is that even if we used it, there would be lots of missing functionality we would need
to invent, and possibly be restricted to the cmake design/patterns in creating it.

The JDK builds are fairly unique, quite a combination of technologies and techniques that
are not normally used together.

-kto

On Apr 25, 2011, at 12:09 PM, Julien Ponge wrote:

> Hi,
> 
> Did you consider using a tool like cmake to manage the build?
> 
> Cheers
> 
> On 25 avr. 2011, at 12:46, Erik Trimble <erik.trimble at oracle.com> wrote:
> 
>> On 4/24/2011 10:12 AM, Kelly O'Hair wrote:
>>> 
>>> 
>>> FYI...
>>> 
>>> I sent this, but I'm not seeing any record it was received... :^(
>>> 
>>> -kto
>>> 
>>> 
>>> Begin forwarded message:
>>> 
>>>> From: Kelly O'Hair <kelly.ohair at oracle.com>
>>>> Date: April 22, 2011 16:49:29 PM PDT
>>>> To: announce at openjdk.java.net
>>>> Subject: Project Proposal: Build Infrastructure Changes
>>>> Reply-To: discuss at openjdk.java.net
>>>> 
>>>> Project Proposal: Build Infrastructure Changes
>>>> In accordance with the OpenJDK guidelines for projects [1], I hereby 
>>>> propose the OpenJDK Project "Build Infrastructure Changes".
>>>> This Project will be used for developing major changes to the JDK build process.
>>>> A list of some of the goals include:
>>>>   * Drastically improving the turnaround on full builds
>>>>   * Provide a reliable way for incremental builds to work
>>>>   * Simplify the makefiles drastically avoiding unnecessary nested makes
>>>>   * Allow for parallel building with make -j
>>>>   * Allow for 32bit builds to happen on 64bit systems
>>>>   * Allow for use of more portable build tools (compilers etc.) where possible
>>>> This work will be done in a separate set of repositories.
>>>> I propose this project be sponsored by the Build Group [2] and that I 
>>>> be the initial moderator of the project.
>>>> 
>>>> [1] http://openjdk.java.net/projects/
>>>> [2] http://openjdk.java.net/groups/build/
>>>> 
>>>> 
>>> 
>> 
>> As one of the major people impacted by this, I give it a very big +1.
>> 
>> YES.
>> 
>> 
>> I'd also like to add that an additional goal could be:
>> 
>> * full documentation of the design (as well as the process) of the build
>> 
>> 
>> It would be a good idea to get this done as one of the first things, that way, it makes it easier to attract new forks. Right now, the barrier to help is quite high.
>> 
>> 
>> -- 
>> Erik Trimble
>> Java System Support
>> Mailstop:  usca22-123
>> Phone:  x17195
>> Santa Clara, CA

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