RFR: 8264064: Cross compile JavaFX graphics and controls modules for Windows AArch64 (ARM64) [v2]

[Alexander Scherbatiy]

On Tue, 13 Apr 2021 13:13:50 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> Alexander Scherbatiy has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Remove mt.exe from win.gradle build script
>
> buildSrc/win.gradle line 468:
> 
>> 466:         case "aarch64" : return "arm64"
>> 467:         case "amd64" : return "x64"
>> 468:         default: return arch
> 
> This looks fine. I recommend to sanity test this on a 32-bit build to ensure that `os.arch` is `x86` (I don't have the ability to do that).

Here are some println lines which I added to win.gradle file before building the fix for windows 32 bits

println "CPU_BITS: $CPU_BITS, ext.OS_ARCH: ${ext.OS_ARCH}"
println "HOST_ARCH: $HOST_ARCH, TARGET_ARCH: ${TARGET_ARCH}, IS_CROSS: ${IS_CROSS}"


I built the fix on Windows x86_64 with 32bits java
The output was:

CPU_BITS: x86, ext.OS_ARCH: x86
HOST_ARCH: x86, TARGET_ARCH: x86, IS_CROSS: false


`file` showed that the glass.dll has been build for Intel 80386:

file build/sdk/bin/glass.dll 
build/sdk/bin/glass.dll: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows

I built corresponding jdk 16 with `--with-target-bits=32` option and the jfx and was able to successfully run Ensemble8.jar app on Windows 32bits.

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PR: https://git.openjdk.java.net/jfx/pull/439