[jdk8u-dev] RFR: 8315020: The macro definition for LoongArch64 zero build is not accurate.

[Leslie Zhai]

Hi,

I'd like to backport this patch to jdk8u. `common/autoconf/platform.m4` and `hotspot/src/os/linux/vm/os_linux.cpp` do not apply cleanly due to context difference, but it is easy to resolve them manually.

A native build on LoongArch hardware is tested.

Debian: https://mail.openjdk.org/pipermail/jdk8u-dev/2024-April/018378.html


$ ./build/images/j2sdk-image/bin/java -version
openjdk version "1.8.0_412"
OpenJDK Runtime Environment (build 1.8.0_412-8u412-ga-1-b08)
OpenJDK 64-Bit Zero VM (build 25.412-b08, interpreted mode)


Loongnix Desktop:


$ ./build/linux-loongarch64-normal-zero-release/images/j2sdk-image/bin/java -version
openjdk version "1.8.0_422-internal"
OpenJDK Runtime Environment (build 1.8.0_422-internal-zhaixiang_2024_04_28_10_57-b00)
OpenJDK 64-Bit Zero VM (build 25.422-b00, interpreted mode)


The risk of the downport is low.

Thanks,
Leslie Zhai

-------------

Commit messages:
 - Backport 725ec0ce1b463b21cd4c5287cf4ccbee53ec7349

Changes: https://git.openjdk.org/jdk8u-dev/pull/489/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=489&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315020
  Stats: 3 lines in 2 files changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/489.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/489/head:pull/489

PR: https://git.openjdk.org/jdk8u-dev/pull/489