diff -r 4d3fefdd2f98 -r 64a3eeabf6e5 common/autoconf/platform.m4
--- a/common/autoconf/platform.m4	Sat Oct 06 10:24:47 2018 +0100
+++ b/common/autoconf/platform.m4	Thu Dec 27 11:47:57 2018 +0800
@@ -23,6 +23,12 @@
 # questions.
 #
 
+#
+# This file has been modified by Loongson Technology in 2018. These
+# modifications are Copyright (c) 2018 Loongson Technology, and are made
+# available on the same license terms set forth above.
+#
+
 # Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
 # Converts autoconf style CPU name to OpenJDK style, into
 # VAR_CPU, VAR_CPU_ARCH, VAR_CPU_BITS and VAR_CPU_ENDIAN.
@@ -96,6 +102,12 @@
       VAR_CPU_BITS=64
       VAR_CPU_ENDIAN=big
       ;;
+    mips64el)
+      VAR_CPU=mips64
+      VAR_CPU_ARCH=mips
+      VAR_CPU_BITS=64
+      VAR_CPU_ENDIAN=little
+      ;;
     *)
       AC_MSG_ERROR([unsupported cpu $1])
       ;;
@@ -283,6 +295,8 @@
     OPENJDK_TARGET_CPU_LEGACY_LIB="i386"
   elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then
     OPENJDK_TARGET_CPU_LEGACY_LIB="amd64"
+  elif test "x$OPENJDK_TARGET_CPU" = xmips64 && test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
+    OPENJDK_TARGET_CPU_LEGACY_LIB="mips64el"
   fi
   AC_SUBST(OPENJDK_TARGET_CPU_LEGACY_LIB)
 
@@ -316,6 +330,10 @@
   elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then
     # On all platforms except macosx, we replace x86_64 with amd64.
     OPENJDK_TARGET_CPU_OSARCH="amd64"
+  elif test "x$OPENJDK_TARGET_OS" = xlinux && test "x$OPENJDK_TARGET_CPU" = xmips64 && test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
+    # Jin: to be exactly same with OpenJDK 6(mips64)
+    # System.getProperty("os.arch"): mips64 -> mips64el
+    OPENJDK_TARGET_CPU_OSARCH="mips64el"
   fi
   AC_SUBST(OPENJDK_TARGET_CPU_OSARCH)
 
@@ -325,6 +343,8 @@
   elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then
     # On all platforms except macosx, we replace x86_64 with amd64.
     OPENJDK_TARGET_CPU_JLI="amd64"
+  elif test "x$OPENJDK_TARGET_CPU" = xmips64 && test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
+    OPENJDK_TARGET_CPU_JLI="mips64el"
   fi
   # Now setup the -D flags for building libjli.
   OPENJDK_TARGET_CPU_JLI_CFLAGS="-DLIBARCHNAME='\"$OPENJDK_TARGET_CPU_JLI\"'"
@@ -335,6 +355,9 @@
       OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"i386\"' -DLIBARCH64NAME='\"amd64\"'"
     fi
   fi
+  if test "x$OPENJDK_TARGET_CPU" = xmips64 && test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
+    OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"mips32el\"' -DLIBARCH64NAME='\"mips64el\"'"
+  fi
   AC_SUBST(OPENJDK_TARGET_CPU_JLI_CFLAGS)
 
   # Setup OPENJDK_TARGET_OS_API_DIR, used in source paths.
@@ -548,3 +571,45 @@
     AC_MSG_ERROR([The tested endian in the target ($ENDIAN) differs from the endian expected to be found in the target ($OPENJDK_TARGET_CPU_ENDIAN)])
   fi
 ])
+
+AC_DEFUN([GET_BUILDER_AND_HOST_DATA],
+[
+BUILDER_NAME="$build_os"
+BUILDER_ID="Custom build ($(date))"
+if test -f /etc/issue; then
+  etc_issue_info=`cat /etc/issue`
+  if test -n "$etc_issue_info"; then
+    BUILDER_NAME=`cat /etc/issue | head -n 1 | cut -d " " -f 1`
+  fi
+fi
+if test -f /etc/redhat-release; then
+  etc_issue_info=`cat /etc/redhat-release`
+  if test -n "$etc_issue_info"; then
+    BUILDER_NAME=`cat /etc/redhat-release | head -n 1 | cut -d " " -f 1`
+  fi
+fi
+if test -f /etc/neokylin-release; then
+  etc_issue_info=`cat /etc/neokylin-release`
+  if test -n "$etc_issue_info"; then
+    BUILDER_NAME=`cat /etc/neokylin-release | head -n 1 | cut -d " " -f 1`
+  fi
+fi
+if test -z "$BUILDER_NAME"; then
+  BUILDER_NAME="unknown"
+fi
+if test -n "$OPENJDK_TARGET_CPU_OSARCH"; then
+  HOST_NAME="$OPENJDK_TARGET_CPU_OSARCH"
+else
+  HOST_NAME="unknown"
+fi
+if test -f "/usr/bin/cpp"; then
+  # gcc_with_arch_info=`gcc -v 2>&1 | grep '\-\-with-arch=' | sed 's/.*--with-arch=//;s/ .*$//'`
+  gcc_with_arch_info=`cpp -dM /dev/null | grep '\<_MIPS_ARCH\>' | sed 's/^#define _MIPS_ARCH "//;s/"$//'`
+  if test -n "$gcc_with_arch_info"; then
+    HOST_NAME="$gcc_with_arch_info"
+  fi
+fi
+AC_SUBST(BUILDER_ID)
+AC_SUBST(BUILDER_NAME)
+AC_SUBST(HOST_NAME)
+])