On 05/06/2018 09:20 AM, David Holmes wrote: > On 5/05/2018 9:26 PM, Aleksey Shipilev wrote: >> RFE: >> https://bugs.openjdk.java.net/browse/JDK-8202683 >> >> Fix: >> http://cr.openjdk.java.net/~shade/8202683/webrev.01/ >> >> Minimal VM is targeted to 32-bit only, but hear me out. Recent build system >> changes, notably >> conditional GC compilation, requires build/testing with some GCs disabled. >> Ultimately, we want >> minimal VM to be buildable at all times. Today, we need to cross-compile to >> x86_32 to verify that, >> but with this change, we can build minimal on x86_64, thus simplifying our >> day-to-day jobs. The >> change itself generates jvm.cfg for minimal VM properly on both bitnesses. > > Is 64-bit client VM now able to be built routinely?
As far as I understand, the culprit before was x86_64 C1, which was fixed to allow Tiered compilation. Anyhow, with the build fix above, Minimal VM seems to build, bootcycle, and run fine on x86_64. > I'm not sure we should be expanding the ability to build the Minimal VM. I am thinking about the patch as removing the 32-bit special case from the jvm.cfg generation. If we want to forbid some JVM variants from building on some arches, we should be doing that explicitly somewhere else. -Aleksey
