[jdk8u-dev] RFR: 8270517: Add Zero support for LoongArch [v2]

[Leslie Zhai]

> Hi,
> 
> I'd like to backport this patch to jdk8u. `common/autoconf/build-aux/config.guess` 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. `common/autoconf/platform.m4` just changed file path. A native build on LoongArch hardware is tested.
> 
> 
> $ ./build/images/j2sdk-image/bin/java -version
> openjdk version "1.8.0_392"
> OpenJDK Runtime Environment (build 1.8.0_392-8u392-ga-1-b08)
> OpenJDK 64-Bit Zero VM (build 25.392-b08, interpreted mode)
> 
> 
> Thanks,
> Leslie Zhai

Leslie Zhai has updated the pull request incrementally with one additional commit since the last revision:

  bash common/autoconf/autogen.sh to regerated common/autoconf/generated-configure.sh

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

Changes:
  - all: https://git.openjdk.org/jdk8u-dev/pull/413/files
  - new: https://git.openjdk.org/jdk8u-dev/pull/413/files/5009879b..ed0af160

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=413&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=413&range=00-01

  Stats: 26 lines in 1 file changed: 24 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/413.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/413/head:pull/413

PR: https://git.openjdk.org/jdk8u-dev/pull/413