On Sat, 14 Jun 2025 11:59:32 GMT, Magnus Ihse Bursie <i...@openjdk.org> wrote:
>> I was thinking we could create the devkit based on the platform where the >> script is being run. For example, running `createWindowsDevkit.sh` on: >> >> - Windows x64 would produce: >> - Native x86 libraries >> - Native x64 libraries >> - Cross-compiled aarch64 libraries >> - Windows aarch64 would produce: >> - Native x86 libraries >> - Native x64 libraries >> - Native aarch64 libraries >> >> From my analysis of your code suggestion, it looks like it might override >> the native aarch64 libraries and always set the cross-compiled ones. What do >> you think? > > I agree with your general premise, that the devkit should be created for the > platform the devkit script is run on. > > When you say that you should produce "native" x64 libraries on aarch64, do > you mean that they should be run using x64 emulation? Otherwise you can't > really have native x64 on aarch64... And even if that works, would it not be > better to have pure native aarch64 cross-compiling to x64 (given that > Microsoft in fact ships such compilers). When you download the Visual Studio Build Tools on an ARM64 machine, it downloads the native binaries for the `x64` architecture under `Hostx64` and the native binaries for `arm64` under `Hostarm64`. This devkit script does not generate any binaries; it simply copies the Build Tools from Visual Studio. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/25259#discussion_r2147426849
