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

[Sergey Bylokhov]

On Sat, 6 Jan 2024 02:53:45 GMT, Leslie Zhai <lzhai at openjdk.org> wrote:

>> 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.
>> 
>> `common/autoconf/generated-configure.sh` regenerated by `bash common/autoconf/autogen.sh`.
>> 
>> A native build on LoongArch hardware is tested.
>> 
>> Debian:  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1060236
>> 
>> 
>> $ ./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)
>> 
>> 
>> Loongnix Desktop:
>> 
>> 
>> $ ./build/linux-loongarch64-normal-zero-release/images/j2sdk-image/bin/java -version
>> openjdk version "1.8.0_412-internal"
>> OpenJDK Runtime Environment (build 1.8.0_412-internal-zhaixiang_2024_01_06_10_53-b00)
>> OpenJDK 64-Bit Zero VM (build 25.412-b00, interpreted mode)
>> 
>> 
>> The risk of the downport is low.
>> 
>> 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

It is strange but after integration of this patch, execution of "autogen.sh" using autoconf 2.69 will cut part of the change(tested on macOS+brew).

[autoconf (GNU Autoconf) 2.69]
Generating generated-configure.sh

diff --git a/common/autoconf/generated-configure.sh b/common/autoconf/generated-configure.sh
index 85eb8a16a21..0803a8782af 100644
--- a/common/autoconf/generated-configure.sh
+++ b/common/autoconf/generated-configure.sh
@@ -1017,7 +1017,6 @@ infodir
 docdir
 oldincludedir
 includedir
-runstatedir
 localstatedir
 sharedstatedir
 sysconfdir
@@ -1263,7 +1262,6 @@ datadir='${datarootdir}'
 sysconfdir='${prefix}/etc'
 sharedstatedir='${prefix}/com'
 localstatedir='${prefix}/var'
-runstatedir='${localstatedir}/run'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
 docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@@ -1516,15 +1514,6 @@ do
   | -silent | --silent | --silen | --sile | --sil)
     silent=yes ;;
 
-  -runstatedir | --runstatedir | --runstatedi | --runstated \
-  | --runstate | --runstat | --runsta | --runst | --runs \
-  | --run | --ru | --r)
-    ac_prev=runstatedir ;;
-  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
-  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
-  | --run=* | --ru=* | --r=*)
-    runstatedir=$ac_optarg ;;
-
   -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1662,7 +1651,7 @@ fi
 for ac_var in  exec_prefix prefix bindir sbindir libexecdir datarootdir \
                datadir sysconfdir sharedstatedir localstatedir includedir \
                oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
-               libdir localedir mandir runstatedir
+               libdir localedir mandir
 do
   eval ac_val=$$ac_var
   # Remove trailing slashes.
@@ -1815,7 +1804,6 @@ Fine tuning of the installation directories:
   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
-  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
   --libdir=DIR            object code libraries [EPREFIX/lib]
   --includedir=DIR        C header files [PREFIX/include]
   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
@@ -4440,7 +4428,7 @@ VS_TOOLSET_SUPPORTED_2022=true

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

PR Comment: https://git.openjdk.org/jdk8u-dev/pull/413#issuecomment-1951600088