RFR: JDK-8170280: Enable -g for all java compilation in the build

[Tim Bell]

Erik:

Looks good to me.

/Tim

On 11/23/16 07:10, Erik Joelsson wrote:
> It was pointed out that the changes to Images.gmk could be made simpler.
> Here is a new webrev:
>
> http://cr.openjdk.java.net/~erikj/8170280/webrev.top.02
>
> /Erik
>
>
> On 2016-11-23 15:25, Erik Joelsson wrote:
>> For a long time, a lot of people have been wanting the JDK classes to
>> be compiled with debug symbols enabled by default. I believe the
>> reason we haven't so far is to keep footprint down for the JRE image.
>> The usecase for debug information is mainly in the JDK image, which is
>> used for development. The problem so far has then been that we don't
>> want to compile everything twice, once with and once without debug
>> symbols.
>>
>> With jlink, we now have the option of stripping debug information at
>> link time. This adds a bit of time creating the images, but it's small
>> compared to recompiling all classes. Because of this, I propose that
>> we enable debug symbols for all java compilation in the build by
>> default and add stripping to all images that are footprint sensitive.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8170280
>>
>> Webrev: http://cr.openjdk.java.net/~erikj/8170280/webrev.top.01
>>
>> /Erik
>>
>