JDK15 support

scripts/config.sh

@@ -289,6 +289,33 @@ elif [ "$JDKVER" == "14" ]; then
   HOTSPOT_ABI=arm-sflt
   JNI_PATH_FLAGS="--with-jni-libpath=/usr/lib/$DEB_HOST_MULTIARCH/jni:/lib/$DEB_HOST_MULTIARCH:/usr/lib/$DEB_HOST_MULTIARCH:/usr/lib/jni:/lib:/usr/lib"
 
+# OpenJDK 15
+elif [ "$JDKVER" == "15" ]; then
+  VERSION_POLICY="latest_general_availability"
+  JAVA_REPO="https://github.com/openjdk/jdk15u.git"
+  JAVA_SCM="git"
+  PATCHVER="jdk15"
+  AUTOGEN_STYLE="v2"
+  if [ "$BUILDER_TYPE" = "native" ]; then
+    HOSTJDK="$BUILDDIR/jdk-ev3"
+    HOSTJDK_RENAME_FROM="$BUILDDIR/jdk"
+    HOSTJDK_FILE="$BUILDDIR/jdk-ev3.tar.gz"
+    # stretch and buster have different versions
+    if [ "$BUILDER_DISTRO" = "stretch" ]; then
+      HOSTJDK_URL="https://ci.adoptopenjdk.net/job/eljbuild/job/stretch-14/lastSuccessfulBuild/artifact/build/jdk-ev3.tar.gz"
+    else
+      HOSTJDK_URL="https://ci.adoptopenjdk.net/job/eljbuild/job/buster-14/lastSuccessfulBuild/artifact/build/jdk-ev3.tar.gz"
+    fi
+  else
+    # same for both stretch & buster
+    HOSTJDK="$BUILDDIR/jdk-14.0.1+7"
+    HOSTJDK_FILE="$BUILDDIR/OpenJDK14U-jdk_x64_linux_hotspot_14.0.1_7.tar.gz"
+    HOSTJDK_URL="https://github.com/AdoptOpenJDK/openjdk14-binaries/releases/download/jdk-14.0.1%2B7/OpenJDK14U-jdk_x64_linux_hotspot_14.0.1_7.tar.gz"
+  fi
+  IMAGEDIR="$JDKDIR/build/linux-arm-${JDKVM}-${HOTSPOT_DEBUG}/images"
+  HOTSPOT_ABI=arm-sflt
+  JNI_PATH_FLAGS="--with-jni-libpath=/usr/lib/$DEB_HOST_MULTIARCH/jni:/lib/$DEB_HOST_MULTIARCH:/usr/lib/$DEB_HOST_MULTIARCH:/usr/lib/jni:/lib:/usr/lib"
+
 # OpenJDK Loom & Master+dev
 elif [ "$JDKVER" == "loom" ] || [ "$JDKVER" == "tip" ]; then
   if [ "$JDKVER" == "loom" ]; then
@@ -333,6 +360,7 @@ else
   echo "JDKVER=12" >&2
   echo "JDKVER=13" >&2
   echo "JDKVER=14" >&2
+  echo "JDKVER=15" >&2
   echo "JDKVER=loom" >&2
   echo "JDKVER=tip" >&2
   exit 1

scripts/jdk15_cds.patch

@@ -1,8 +1,8 @@
 diff --git a/src/hotspot/share/memory/metaspaceShared.cpp b/src/hotspot/share/memory/metaspaceShared.cpp
-index 20d7f53d3..4f6130b62 100644
+index 57a97b5c2..448156667 100644
 --- a/src/hotspot/share/memory/metaspaceShared.cpp
 +++ b/src/hotspot/share/memory/metaspaceShared.cpp
-@@ -1221,7 +1221,7 @@ public:
+@@ -1311,7 +1311,7 @@ public:
      address obj = ref->obj();
      int bytes = ref->size() * BytesPerWord;
      char* p;
@@ -11,7 +11,7 @@ index 20d7f53d3..4f6130b62 100644
      char* oldtop;
      char* newtop;
 
-@@ -1239,7 +1239,7 @@ public:
+@@ -1329,7 +1329,7 @@ public:
          Klass* klass = (Klass*)obj;
          if (klass->is_instance_klass()) {
            SystemDictionaryShared::validate_before_archiving(InstanceKlass::cast(klass));
@@ -21,10 +21,10 @@ index 20d7f53d3..4f6130b62 100644
        }
        p = _rw_region.allocate(bytes, alignment);
 diff --git a/src/hotspot/share/memory/metaspaceShared.hpp b/src/hotspot/share/memory/metaspaceShared.hpp
-index 4a4ee709f..57af38f19 100644
+index 326522c4a..4c5e54b4d 100644
 --- a/src/hotspot/share/memory/metaspaceShared.hpp
 +++ b/src/hotspot/share/memory/metaspaceShared.hpp
-@@ -70,7 +70,7 @@ public:
+@@ -71,7 +71,7 @@ public:
    DumpRegion(const char* name) : _name(name), _base(NULL), _top(NULL), _end(NULL), _is_packed(false) {}
 
    char* expand_top_to(char* newtop);

scripts/jdk15_new.patch

@@ -1,8 +1,8 @@
 diff --git a/make/autoconf/hotspot.m4 b/make/autoconf/hotspot.m4
-index 0e4f4c283..647f41158 100644
+index 43653c115..4c5f960a8 100644
 --- a/make/autoconf/hotspot.m4
 +++ b/make/autoconf/hotspot.m4
-@@ -172,6 +172,11 @@ AC_DEFUN_ONCE([HOTSPOT_SETUP_MISC],
+@@ -138,6 +138,11 @@ AC_DEFUN_ONCE([HOTSPOT_SETUP_MISC],
      HOTSPOT_TARGET_CPU_DEFINE="ARM32"
    fi
 
@@ -13,24 +13,24 @@ index 0e4f4c283..647f41158 100644
 +
    # --with-cpu-port is no longer supported
    UTIL_DEPRECATED_ARG_WITH(with-cpu-port)
- ])
+
 diff --git a/src/hotspot/share/memory/metaspaceShared.cpp b/src/hotspot/share/memory/metaspaceShared.cpp
-index 5bc8df595..20d7f53d3 100644
+index 28742febe..57a97b5c2 100644
 --- a/src/hotspot/share/memory/metaspaceShared.cpp
 +++ b/src/hotspot/share/memory/metaspaceShared.cpp
-@@ -71,6 +71,7 @@
- #include "utilities/bitMap.inline.hpp"
+@@ -72,6 +72,7 @@
+ #include "utilities/ostream.hpp"
  #include "utilities/defaultStream.hpp"
  #include "utilities/hashtable.inline.hpp"
 +#include "gc/shared/softRefPolicy.hpp"
  #if INCLUDE_G1GC
  #include "gc/g1/g1CollectedHeap.hpp"
  #endif
 diff --git a/src/hotspot/share/oops/constantPool.cpp b/src/hotspot/share/oops/constantPool.cpp
-index b325f9f16..da47aff73 100644
+index d27bf3474..35bc24c7b 100644
 --- a/src/hotspot/share/oops/constantPool.cpp
 +++ b/src/hotspot/share/oops/constantPool.cpp
-@@ -429,8 +429,12 @@ void ConstantPool::remove_unshareable_info() {
+@@ -437,8 +437,12 @@ void ConstantPool::remove_unshareable_info() {
  }
 
  int ConstantPool::cp_to_object_index(int cp_index) {