RFR: JDK-8204602 Add devkit for linux-arm32

[David Holmes]

On 11/06/2018 4:46 PM, Magnus Ihse Bursie wrote:
> On 2018-06-10 15:35, David Holmes wrote:
>> On 8/06/2018 6:38 PM, Magnus Ihse Bursie wrote:
>>> With some simple changes, our devkit scripts can be made to generate 
>>> devkits for cross-compiling on linux-x64 to linux-arm (32-bit). Also 
>>> add a jib profile to use this new linux-arm devkit, as opposed to the 
>>> legacy devkits used by the traditional linux-arm profiles.
>>
>> I'm not at all clear what this is providing or for whom. The legacy 
>> linux-arm-vfp-hflt requires pointers to the X11R6 installation to 
>> build. The linux-arm32 jib-profile has none, but instead lists 
>> freetype as being bundled. ??
> 
> The target audience here is mainly Erik and me (and the Hotspot 
> engineers who have requested a simple way to build the arm port). This 
> provides us with an up-to-date, standard configured, devkit for building 
> arm-32.
> 
> In contrast to the legacy jib profile, we now have a devkit that is 
> build according to our standard, so configure need a minimal amount of 
> flags (hence no X11 flags). The bundled freetype is to simplify things; 
> we now have a version of freetype included in the OpenJDK source, and 
> it's by far the easiest to use it, rather than to include it in the 
> devkit, but this is not enabled by default on linux-arm.
> 
> I hope that answers your questions!

Yes - thanks. I'm not sure the legacy jib profile serves any purpose now 
- or even if it still builds.

David

> /Magnus
> 
>>
>> David
>>
>>> Note that this change does not imply any change in Oracle's support 
>>> of the linux-arm platform.
>>>
>>> Bug: https://bugs.openjdk.java.net/browse/JDK-8204602
>>> WebRev: 
>>> http://cr.openjdk.java.net/~ihse/JDK-8204602-add-linux-arm-32-devkit/webrev.01 
>>>
>>>
>>> /Magnus
>