# HG changeset patch
# User asaha
# Date 1339097402 25200
# Node ID f9d57285de70374c69be326ee018711b6700fdb0
# Parent  84e198dc24742a237f31c60fc01efe93f7b5c5d3# Parent  55954061c6e8750ea39a63523fd65d580db6eeb1
Merge

diff -r 84e198dc2474 -r f9d57285de70 .hgtags
--- a/.hgtags	Mon May 21 14:56:33 2012 -0700
+++ b/.hgtags	Thu Jun 07 12:30:02 2012 -0700
@@ -247,3 +247,8 @@
 637c3f5f068f88fb9ec9c5867341cf59fd5ebedc jdk8-b38
 73147e6c48813b5fee904aa33f79a77103250ff4 hs24-b10
 96a403721094ecdaf6a1f4f52ebd0a82e07df199 jdk8-b39
+14b0e07ab9a6fa1662414496b7e07ac8450cf517 hs24-b11
+ff9decc8235d5af80ea45fda4ecbe643ea252564 jdk8-b40
+785573170238f0eae6dc8e22ecf1050fbc9ea055 hs24-b12
+37add4fa0296705f67481e1fd50e2900cd25e39b jdk8-b41
+bd568544be7fcd12a9327e6c448592198d57b043 hs24-b13
diff -r 84e198dc2474 -r f9d57285de70 agent/src/share/classes/sun/jvm/hotspot/HotSpotAgent.java
--- a/agent/src/share/classes/sun/jvm/hotspot/HotSpotAgent.java	Mon May 21 14:56:33 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/HotSpotAgent.java	Thu Jun 07 12:30:02 2012 -0700
@@ -572,10 +572,10 @@
 
         if (cpu.equals("x86")) {
             machDesc = new MachineDescriptionIntelX86();
-        } else if (cpu.equals("amd64")) {
+        } else if (cpu.equals("amd64") || cpu.equals("x86_64")) {
             machDesc = new MachineDescriptionAMD64();
         } else {
-            throw new DebuggerException("BSD only supported on x86/amd64");
+            throw new DebuggerException("BSD only supported on x86/x86_64. Current arch: " + cpu);
         }
 
         BsdDebuggerLocal dbg = new BsdDebuggerLocal(machDesc, !isServer);
diff -r 84e198dc2474 -r f9d57285de70 agent/src/share/classes/sun/jvm/hotspot/bugspot/BugSpotAgent.java
--- a/agent/src/share/classes/sun/jvm/hotspot/bugspot/BugSpotAgent.java	Mon May 21 14:56:33 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/bugspot/BugSpotAgent.java	Thu Jun 07 12:30:02 2012 -0700
@@ -762,10 +762,10 @@
 
         if (cpu.equals("x86")) {
             machDesc = new MachineDescriptionIntelX86();
-        } else if (cpu.equals("amd64")) {
+        } else if (cpu.equals("amd64") || (cpu.equals("x86_64"))) {
             machDesc = new MachineDescriptionAMD64();
         } else {
-            throw new DebuggerException("Bsd only supported on x86/amd64");
+            throw new DebuggerException("Bsd only supported on x86/x86_64. Current arch: " + cpu);
         }
 
         // Note we do not use a cache for the local debugger in server
diff -r 84e198dc2474 -r f9d57285de70 agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdCDebugger.java
--- a/agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdCDebugger.java	Mon May 21 14:56:33 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdCDebugger.java	Thu Jun 07 12:30:02 2012 -0700
@@ -90,7 +90,7 @@
        Address pc  = context.getRegisterAsAddress(X86ThreadContext.EIP);
        if (pc == null) return null;
        return new BsdX86CFrame(dbg, ebp, pc);
-    } else if (cpu.equals("amd64")) {
+    } else if (cpu.equals("amd64") || cpu.equals("x86_64")) {
        AMD64ThreadContext context = (AMD64ThreadContext) thread.getContext();
        Address rbp = context.getRegisterAsAddress(AMD64ThreadContext.RBP);
        if (rbp == null) return null;
diff -r 84e198dc2474 -r f9d57285de70 agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdThreadContextFactory.java
--- a/agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdThreadContextFactory.java	Mon May 21 14:56:33 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdThreadContextFactory.java	Thu Jun 07 12:30:02 2012 -0700
@@ -33,7 +33,7 @@
       String cpu = dbg.getCPU();
       if (cpu.equals("x86")) {
          return new BsdX86ThreadContext(dbg);
-      } else if (cpu.equals("amd64")) {
+      } else if (cpu.equals("amd64") || cpu.equals("x86_64")) {
          return new BsdAMD64ThreadContext(dbg);
       } else {
          throw new RuntimeException("cpu " + cpu + " is not yet supported");
diff -r 84e198dc2474 -r f9d57285de70 agent/src/share/classes/sun/jvm/hotspot/debugger/proc/ProcDebuggerLocal.java
--- a/agent/src/share/classes/sun/jvm/hotspot/debugger/proc/ProcDebuggerLocal.java	Mon May 21 14:56:33 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/debugger/proc/ProcDebuggerLocal.java	Thu Jun 07 12:30:02 2012 -0700
@@ -81,7 +81,7 @@
             pcRegIndex = X86ThreadContext.EIP;
             fpRegIndex = X86ThreadContext.EBP;
             unalignedAccessesOkay = true;
-        } else if (cpu.equals("amd64")) {
+        } else if (cpu.equals("amd64") || cpu.equals("x86_64")) {
             threadFactory = new ProcAMD64ThreadFactory(this);
             pcRegIndex = AMD64ThreadContext.RIP;
             fpRegIndex = AMD64ThreadContext.RBP;
diff -r 84e198dc2474 -r f9d57285de70 agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerClient.java
--- a/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerClient.java	Mon May 21 14:56:33 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerClient.java	Thu Jun 07 12:30:02 2012 -0700
@@ -64,7 +64,7 @@
         cachePageSize = 4096;
         cacheNumPages = parseCacheNumPagesProperty(cacheSize / cachePageSize);
         unalignedAccessesOkay = true;
-      } else if (cpu.equals("amd64")) {
+      } else if (cpu.equals("amd64") || cpu.equals("x86_64")) {
         threadFactory = new RemoteAMD64ThreadFactory(this);
         cachePageSize = 4096;
         cacheNumPages = parseCacheNumPagesProperty(cacheSize / cachePageSize);
diff -r 84e198dc2474 -r f9d57285de70 agent/src/share/classes/sun/jvm/hotspot/oops/AccessFlags.java
--- a/agent/src/share/classes/sun/jvm/hotspot/oops/AccessFlags.java	Mon May 21 14:56:33 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/oops/AccessFlags.java	Thu Jun 07 12:30:02 2012 -0700
@@ -81,6 +81,7 @@
   // field flags
   public boolean fieldAccessWatched () { return (flags & JVM_ACC_FIELD_ACCESS_WATCHED) != 0; }
   public boolean fieldModificationWatched() { return (flags & JVM_ACC_FIELD_MODIFICATION_WATCHED) != 0; }
+  public boolean fieldHasGenericSignature() { return (flags & JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE)!= 0; }
 
   public void printOn(PrintStream tty) {
     // prints only .class flags and not the hotspot internal flags
diff -r 84e198dc2474 -r f9d57285de70 agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java
--- a/agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java	Mon May 21 14:56:33 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java	Thu Jun 07 12:30:02 2012 -0700
@@ -50,7 +50,6 @@
   private static int INITVAL_INDEX_OFFSET;
   private static int LOW_OFFSET;
   private static int HIGH_OFFSET;
-  private static int GENERIC_SIGNATURE_INDEX_OFFSET;
   private static int FIELD_SLOTS;
 
   // ClassState constants
@@ -99,7 +98,6 @@
     INITVAL_INDEX_OFFSET           = db.lookupIntConstant("FieldInfo::initval_index_offset").intValue();
     LOW_OFFSET                     = db.lookupIntConstant("FieldInfo::low_offset").intValue();
     HIGH_OFFSET                    = db.lookupIntConstant("FieldInfo::high_offset").intValue();
-    GENERIC_SIGNATURE_INDEX_OFFSET = db.lookupIntConstant("FieldInfo::generic_signature_offset").intValue();
     FIELD_SLOTS                    = db.lookupIntConstant("FieldInfo::field_slots").intValue();
     // read ClassState constants
     CLASS_STATE_UNPARSABLE_BY_GC = db.lookupIntConstant("instanceKlass::unparsable_by_gc").intValue();
@@ -279,7 +277,25 @@
   }
 
   public short getFieldGenericSignatureIndex(int index) {
-    return getFields().getShortAt(index * FIELD_SLOTS + GENERIC_SIGNATURE_INDEX_OFFSET);
+    int len = (int)getFields().getLength();
+    int allFieldsCount = getAllFieldsCount();
+    int generic_signature_slot = allFieldsCount * FIELD_SLOTS;
+    for (int i = 0; i < allFieldsCount; i++) {
+      short flags = getFieldAccessFlags(i);
+      AccessFlags access = new AccessFlags(flags);
+      if (i == index) {
+        if (access.fieldHasGenericSignature()) {
+          return getFields().getShortAt(generic_signature_slot);
+        } else {
+          return 0;
+        }
+      } else {
+        if (access.fieldHasGenericSignature()) {
+          generic_signature_slot ++;
+        }
+      }
+    }
+    return 0;
   }
 
   public Symbol getFieldGenericSignature(int index) {
@@ -309,7 +325,18 @@
   public ObjArray  getTransitiveInterfaces() { return (ObjArray)     transitiveInterfaces.getValue(this); }
   public TypeArray getFields()              { return (TypeArray)    fields.getValue(this); }
   public int       getJavaFieldsCount()     { return                (int) javaFieldsCount.getValue(this); }
-  public int       getAllFieldsCount()      { return                (int)getFields().getLength() / FIELD_SLOTS; }
+  public int       getAllFieldsCount()      {
+    int len = (int)getFields().getLength();
+    int allFieldsCount = 0;
+    for (; allFieldsCount*FIELD_SLOTS < len; allFieldsCount++) {
+      short flags = getFieldAccessFlags(allFieldsCount);
+      AccessFlags access = new AccessFlags(flags);
+      if (access.fieldHasGenericSignature()) {
+        len --;
+      }
+    }
+    return allFieldsCount;
+  }
   public ConstantPool getConstants()        { return (ConstantPool) constants.getValue(this); }
   public Oop       getClassLoader()         { return                classLoader.getValue(this); }
   public Oop       getProtectionDomain()    { return                protectionDomain.getValue(this); }
diff -r 84e198dc2474 -r f9d57285de70 agent/src/share/classes/sun/jvm/hotspot/runtime/ClassConstants.java
--- a/agent/src/share/classes/sun/jvm/hotspot/runtime/ClassConstants.java	Mon May 21 14:56:33 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/runtime/ClassConstants.java	Thu Jun 07 12:30:02 2012 -0700
@@ -153,6 +153,8 @@
     public static final long JVM_ACC_FIELD_ACCESS_WATCHED         = 0x00002000;
     // field modification is watched by JVMTI
     public static final long JVM_ACC_FIELD_MODIFICATION_WATCHED   = 0x00008000;
+    // field has generic signature
+    public static final long JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE  = 0x00000800;
 
     // flags accepted by set_field_flags
     public static final long JVM_ACC_FIELD_FLAGS = 0x00008000 | JVM_ACC_WRITTEN_FLAGS;
diff -r 84e198dc2474 -r f9d57285de70 agent/src/share/classes/sun/jvm/hotspot/runtime/Threads.java
--- a/agent/src/share/classes/sun/jvm/hotspot/runtime/Threads.java	Mon May 21 14:56:33 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/runtime/Threads.java	Thu Jun 07 12:30:02 2012 -0700
@@ -95,7 +95,7 @@
         } else if (os.equals("bsd")) {
             if (cpu.equals("x86")) {
                 access = new BsdX86JavaThreadPDAccess();
-            } else if (cpu.equals("amd64")) {
+            } else if (cpu.equals("amd64") || cpu.equals("x86_64")) {
                 access = new BsdAMD64JavaThreadPDAccess();
             }
         }
diff -r 84e198dc2474 -r f9d57285de70 agent/src/share/classes/sun/jvm/hotspot/ui/classbrowser/HTMLGenerator.java
--- a/agent/src/share/classes/sun/jvm/hotspot/ui/classbrowser/HTMLGenerator.java	Mon May 21 14:56:33 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/ui/classbrowser/HTMLGenerator.java	Thu Jun 07 12:30:02 2012 -0700
@@ -199,7 +199,7 @@
          cpuHelper = new SPARCHelper();
       } else if (cpu.equals("x86")) {
          cpuHelper = new X86Helper();
-      } else if (cpu.equals("amd64")) {
+      } else if (cpu.equals("amd64") || cpu.equals("x86_64")) {
          cpuHelper = new AMD64Helper();
       } else if (cpu.equals("ia64")) {
          cpuHelper = new IA64Helper();
diff -r 84e198dc2474 -r f9d57285de70 agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaFrame.java
--- a/agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaFrame.java	Mon May 21 14:56:33 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaFrame.java	Thu Jun 07 12:30:02 2012 -0700
@@ -153,7 +153,8 @@
             List visibleVars = new ArrayList(0);
             for (int i = 0; i < localVars.length; i++) {
                 LocalVariableTableElement cur = localVars[i];
-                if (cur.getStartBCI() >= bci && cur.getLength() > 0) {
+                int startBCI = cur.getStartBCI();
+                if (startBCI <= bci && bci < startBCI + cur.getLength()) {
                     visibleVars.add(cur);
                 }
             }
diff -r 84e198dc2474 -r f9d57285de70 make/hotspot_version
--- a/make/hotspot_version	Mon May 21 14:56:33 2012 -0700
+++ b/make/hotspot_version	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 # 
-# Copyright (c) 2006, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2006, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -31,11 +31,11 @@
 #
 
 # Don't put quotes (fail windows build).
-HOTSPOT_VM_COPYRIGHT=Copyright 2011
+HOTSPOT_VM_COPYRIGHT=Copyright 2012
 
 HS_MAJOR_VER=24
 HS_MINOR_VER=0
-HS_BUILD_NUMBER=10
+HS_BUILD_NUMBER=13
 
 JDK_MAJOR_VER=1
 JDK_MINOR_VER=8
diff -r 84e198dc2474 -r f9d57285de70 make/jprt.properties
--- a/make/jprt.properties	Mon May 21 14:56:33 2012 -0700
+++ b/make/jprt.properties	Thu Jun 07 12:30:02 2012 -0700
@@ -133,7 +133,8 @@
     ${jprt.my.linux.x64}-{product|fastdebug}, \
     ${jprt.my.macosx.x64}-{product|fastdebug|debug}, \
     ${jprt.my.windows.i586}-{product|fastdebug|debug}, \
-    ${jprt.my.windows.x64}-{product|fastdebug|debug}
+    ${jprt.my.windows.x64}-{product|fastdebug|debug}, \
+    ${jprt.my.linux.armvfp}-{product|fastdebug}
 
 jprt.build.targets.open= \
     ${jprt.my.solaris.i586}-{productOpen}, \
diff -r 84e198dc2474 -r f9d57285de70 make/linux/makefiles/vm.make
--- a/make/linux/makefiles/vm.make	Mon May 21 14:56:33 2012 -0700
+++ b/make/linux/makefiles/vm.make	Thu Jun 07 12:30:02 2012 -0700
@@ -102,9 +102,11 @@
 # a time and date. 
 vm_version.o: CXXFLAGS += ${JRE_VERSION}
 
-ifndef JAVASE_EMBEDDED
+ifndef JAVASE_EMBEDDED 
+ifneq (${ARCH},arm)
 CFLAGS += -DINCLUDE_TRACE
 endif
+endif
 
 # CFLAGS_WARN holds compiler options to suppress/enable warnings.
 CFLAGS += $(CFLAGS_WARN/BYFILE)
@@ -153,11 +155,13 @@
 SOURCE_PATHS+=$(HS_COMMON_SRC)/cpu/$(Platform_arch)/vm
 SOURCE_PATHS+=$(HS_COMMON_SRC)/os_cpu/$(Platform_os_arch)/vm
 
-ifndef JAVASE_EMBEDDED
+ifndef JAVASE_EMBEDDED 
+ifneq (${ARCH},arm)
 SOURCE_PATHS+=$(shell if [ -d $(HS_ALT_SRC)/share/vm/jfr ]; then \
   find $(HS_ALT_SRC)/share/vm/jfr -type d; \
   fi)
 endif
+endif
 
 CORE_PATHS=$(foreach path,$(SOURCE_PATHS),$(call altsrc,$(path)) $(path))
 CORE_PATHS+=$(GENERATED)/jvmtifiles
diff -r 84e198dc2474 -r f9d57285de70 make/solaris/makefiles/add_gnu_debuglink.make
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/make/solaris/makefiles/add_gnu_debuglink.make	Thu Jun 07 12:30:02 2012 -0700
@@ -0,0 +1,51 @@
+#
+# Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#  
+#
+
+# Rules to build add_gnu_debuglink, used by vm.make on Solaris
+
+GENERATED                 = ../generated
+ADD_GNU_DEBUGLINK         = $(GENERATED)/add_gnu_debuglink
+
+ADD_GNU_DEBUGLINK_DIR     = $(GAMMADIR)/src/os/solaris/add_gnu_debuglink
+ADD_GNU_DEBUGLINK_SRC     = $(ADD_GNU_DEBUGLINK_DIR)/add_gnu_debuglink.c
+ADD_GNU_DEBUGLINK_FLAGS   = 
+LIBS_ADD_GNU_DEBUGLINK   += -lelf
+
+ifeq ("${Platform_compiler}", "sparcWorks")
+# Enable the following ADD_GNU_DEBUGLINK_FLAGS addition if you need to
+# compare the built ELF objects.
+#
+# The -g option makes static data global and the "-W0,-noglobal"
+# option tells the compiler to not globalize static data using a unique
+# globalization prefix. Instead force the use of a static globalization
+# prefix based on the source filepath so the objects from two identical
+# compilations are the same.
+#
+# Note: The blog says to use "-W0,-xglobalstatic", but that doesn't
+#       seem to work. I got "-W0,-noglobal" from Kelly and that works.
+#ADD_GNU_DEBUGLINK_FLAGS += -W0,-noglobal
+endif # Platform_compiler == sparcWorks
+
+$(ADD_GNU_DEBUGLINK): $(ADD_GNU_DEBUGLINK_SRC)
+	$(CC) -g -o $@ $< $(ADD_GNU_DEBUGLINK_FLAGS) $(LIBS_ADD_GNU_DEBUGLINK)
diff -r 84e198dc2474 -r f9d57285de70 make/solaris/makefiles/defs.make
--- a/make/solaris/makefiles/defs.make	Mon May 21 14:56:33 2012 -0700
+++ b/make/solaris/makefiles/defs.make	Thu Jun 07 12:30:02 2012 -0700
@@ -109,18 +109,12 @@
   # overridden in some situations, e.g., a BUILD_FLAVOR != product
   # build.
 
-  # Disable FULL_DEBUG_SYMBOLS by default because dtrace tests are
-  # failing in nightly when the debug info files are ZIP'ed. On
-  # Solaris debug info files need to be ZIP'ed to reduce the impact
-  # on disk space footprint.
-  FULL_DEBUG_SYMBOLS ?= 0
   ifeq ($(BUILD_FLAVOR), product)
-    # FULL_DEBUG_SYMBOLS ?= 1
+    FULL_DEBUG_SYMBOLS ?= 1
     ENABLE_FULL_DEBUG_SYMBOLS = $(FULL_DEBUG_SYMBOLS)
   else
     # debug variants always get Full Debug Symbols (if available)
-    # ENABLE_FULL_DEBUG_SYMBOLS = 1
-    ENABLE_FULL_DEBUG_SYMBOLS = $(FULL_DEBUG_SYMBOLS)
+    ENABLE_FULL_DEBUG_SYMBOLS = 1
   endif
   _JUNK_ := $(shell \
     echo >&2 "INFO: ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS)")
@@ -129,25 +123,10 @@
   ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
     # Default OBJCOPY comes from the SUNWbinutils package:
     DEF_OBJCOPY=/usr/sfw/bin/gobjcopy
-    ifeq ($(VM_PLATFORM),solaris_amd64)
-      # On Solaris AMD64/X64, gobjcopy is not happy and fails:
-      #
-      # usr/sfw/bin/gobjcopy --add-gnu-debuglink=<lib>.debuginfo <lib>.so
-      # BFD: stKPaiop: Not enough room for program headers, try linking with -N
-      # /usr/sfw/bin/gobjcopy: stKPaiop: Bad value
-      # BFD: stKPaiop: Not enough room for program headers, try linking with -N
-      # /usr/sfw/bin/gobjcopy: libsaproc.debuginfo: Bad value
-      # BFD: stKPaiop: Not enough room for program headers, try linking with -N
-      # /usr/sfw/bin/gobjcopy: stKPaiop: Bad value
-      _JUNK_ := $(shell \
-        echo >&2 "INFO: $(DEF_OBJCOPY) is not working on Solaris AMD64/X64")
-      OBJCOPY=
-    else
-      OBJCOPY=$(shell test -x $(DEF_OBJCOPY) && echo $(DEF_OBJCOPY))
-      ifneq ($(ALT_OBJCOPY),)
-        _JUNK_ := $(shell echo >&2 "INFO: ALT_OBJCOPY=$(ALT_OBJCOPY)")
-        OBJCOPY=$(shell test -x $(ALT_OBJCOPY) && echo $(ALT_OBJCOPY))
-      endif
+    OBJCOPY=$(shell test -x $(DEF_OBJCOPY) && echo $(DEF_OBJCOPY))
+    ifneq ($(ALT_OBJCOPY),)
+      _JUNK_ := $(shell echo >&2 "INFO: ALT_OBJCOPY=$(ALT_OBJCOPY)")
+      OBJCOPY=$(shell test -x $(ALT_OBJCOPY) && echo $(ALT_OBJCOPY))
     endif
   else
     OBJCOPY=
@@ -178,9 +157,7 @@
     _JUNK_ := $(shell \
       echo >&2 "INFO: STRIP_POLICY=$(STRIP_POLICY)")
 
-    # Disable ZIP_DEBUGINFO_FILES by default because dtrace tests are
-    # failing in nightly when the debug info files are ZIP'ed.
-    ZIP_DEBUGINFO_FILES ?= 0
+    ZIP_DEBUGINFO_FILES ?= 1
 
     _JUNK_ := $(shell \
       echo >&2 "INFO: ZIP_DEBUGINFO_FILES=$(ZIP_DEBUGINFO_FILES)")
diff -r 84e198dc2474 -r f9d57285de70 make/solaris/makefiles/dtrace.make
--- a/make/solaris/makefiles/dtrace.make	Mon May 21 14:56:33 2012 -0700
+++ b/make/solaris/makefiles/dtrace.make	Thu Jun 07 12:30:02 2012 -0700
@@ -108,15 +108,24 @@
 XLIBJVM_DTRACE_G_DEBUGINFO = 64/$(LIBJVM_DTRACE_G_DEBUGINFO)
 XLIBJVM_DTRACE_G_DIZ       = 64/$(LIBJVM_DTRACE_G_DIZ)
 
-$(XLIBJVM_DB): $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS).h $(LIBJVM_DB_MAPFILE)
+$(XLIBJVM_DB): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS).h $(LIBJVM_DB_MAPFILE)
 	@echo Making $@
 	$(QUIETLY) mkdir -p 64/ ; \
 	$(CC) $(SYMFLAG) $(ARCHFLAG/$(ISA)) -D$(TYPE) -I. -I$(GENERATED) \
 		$(SHARED_FLAG) $(LFLAGS_JVM_DB) -o $@ $(DTRACE_SRCDIR)/$(JVM_DB).c -lc
 	[ -f $(XLIBJVM_DB_G) ] || { ln -s $(LIBJVM_DB) $(XLIBJVM_DB_G); }
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# gobjcopy crashes on "empty" section headers with the SHF_ALLOC flag set.
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+# An empty section header has sh_addr == 0 and sh_size == 0.
+# This problem has only been seen on Solaris X64, but we call this tool
+# on all Solaris builds just in case.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(XLIBJVM_DB_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(XLIBJVM_DB_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+# Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) is available.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(XLIBJVM_DB_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(XLIBJVM_DB_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
@@ -133,15 +142,19 @@
   endif
 endif
 
-$(XLIBJVM_DTRACE): $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
+$(XLIBJVM_DTRACE): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
 	@echo Making $@
 	$(QUIETLY) mkdir -p 64/ ; \
 	$(CC) $(SYMFLAG) $(ARCHFLAG/$(ISA)) -D$(TYPE) -I. \
 		$(SHARED_FLAG) $(LFLAGS_JVM_DTRACE) -o $@ $(DTRACE_SRCDIR)/$(JVM_DTRACE).c -lc -lthread -ldoor
 	[ -f $(XLIBJVM_DTRACE_G) ] || { ln -s $(LIBJVM_DTRACE) $(XLIBJVM_DTRACE_G); }
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(XLIBJVM_DTRACE_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(XLIBJVM_DTRACE_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(XLIBJVM_DTRACE_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(XLIBJVM_DTRACE_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
@@ -198,14 +211,18 @@
 $(JVMOFFS.o): $(JVMOFFS).h $(JVMOFFS).cpp 
 	$(QUIETLY) $(CXX) -c -I. -o $@ $(ARCHFLAG) -D$(TYPE) $(JVMOFFS).cpp
 
-$(LIBJVM_DB): $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS.o) $(XLIBJVM_DB) $(LIBJVM_DB_MAPFILE)
+$(LIBJVM_DB): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS.o) $(XLIBJVM_DB) $(LIBJVM_DB_MAPFILE)
 	@echo Making $@
 	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) -D$(TYPE) -I. -I$(GENERATED) \
 		$(SHARED_FLAG) $(LFLAGS_JVM_DB) -o $@ $(DTRACE_SRCDIR)/$(JVM_DB).c -lc
 	[ -f $(LIBJVM_DB_G) ] || { ln -s $@ $(LIBJVM_DB_G); }
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DB_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DB_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DB_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBJVM_DB_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
@@ -222,14 +239,18 @@
   endif
 endif
 
-$(LIBJVM_DTRACE): $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(XLIBJVM_DTRACE) $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
+$(LIBJVM_DTRACE): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(XLIBJVM_DTRACE) $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
 	@echo Making $@
 	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) -D$(TYPE) -I.  \
 		$(SHARED_FLAG) $(LFLAGS_JVM_DTRACE) -o $@ $(DTRACE_SRCDIR)/$(JVM_DTRACE).c -lc -lthread -ldoor
 	[ -f $(LIBJVM_DTRACE_G) ] || { ln -s $@ $(LIBJVM_DTRACE_G); }
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DTRACE_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DTRACE_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DTRACE_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBJVM_DTRACE_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
diff -r 84e198dc2474 -r f9d57285de70 make/solaris/makefiles/fix_empty_sec_hdr_flags.make
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/make/solaris/makefiles/fix_empty_sec_hdr_flags.make	Thu Jun 07 12:30:02 2012 -0700
@@ -0,0 +1,51 @@
+#
+# Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#  
+#
+
+# Rules to build fix_empty_sec_hdr_flags, used by vm.make on Solaris
+
+GENERATED                       = ../generated
+FIX_EMPTY_SEC_HDR_FLAGS         = $(GENERATED)/fix_empty_sec_hdr_flags
+
+FIX_EMPTY_SEC_HDR_FLAGS_DIR     = $(GAMMADIR)/src/os/solaris/fix_empty_sec_hdr_flags
+FIX_EMPTY_SEC_HDR_FLAGS_SRC     = $(FIX_EMPTY_SEC_HDR_FLAGS_DIR)/fix_empty_sec_hdr_flags.c
+FIX_EMPTY_SEC_HDR_FLAGS_FLAGS   = 
+LIBS_FIX_EMPTY_SEC_HDR_FLAGS   += -lelf
+
+ifeq ("${Platform_compiler}", "sparcWorks")
+# Enable the following FIX_EMPTY_SEC_HDR_FLAGS_FLAGS addition if you need to
+# compare the built ELF objects.
+#
+# The -g option makes static data global and the "-W0,-noglobal"
+# option tells the compiler to not globalize static data using a unique
+# globalization prefix. Instead force the use of a static globalization
+# prefix based on the source filepath so the objects from two identical
+# compilations are the same.
+#
+# Note: The blog says to use "-W0,-xglobalstatic", but that doesn't
+#       seem to work. I got "-W0,-noglobal" from Kelly and that works.
+#FIX_EMPTY_SEC_HDR_FLAGS_FLAGS += -W0,-noglobal
+endif # Platform_compiler == sparcWorks
+
+$(FIX_EMPTY_SEC_HDR_FLAGS): $(FIX_EMPTY_SEC_HDR_FLAGS_SRC)
+	$(CC) -g -o $@ $< $(FIX_EMPTY_SEC_HDR_FLAGS_FLAGS) $(LIBS_FIX_EMPTY_SEC_HDR_FLAGS)
diff -r 84e198dc2474 -r f9d57285de70 make/solaris/makefiles/jsig.make
--- a/make/solaris/makefiles/jsig.make	Mon May 21 14:56:33 2012 -0700
+++ b/make/solaris/makefiles/jsig.make	Thu Jun 07 12:30:02 2012 -0700
@@ -52,14 +52,23 @@
 LFLAGS_JSIG += -mt -xnolib
 endif
 
-$(LIBJSIG): $(JSIGSRCDIR)/jsig.c $(LIBJSIG_MAPFILE)
+$(LIBJSIG): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(JSIGSRCDIR)/jsig.c $(LIBJSIG_MAPFILE)
 	@echo Making signal interposition lib...
 	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) $(SHARED_FLAG) $(PICFLAG) \
-                         $(LFLAGS_JSIG) -o $@ $< -ldl
+                         $(LFLAGS_JSIG) -o $@ $(JSIGSRCDIR)/jsig.c -ldl
 	[ -f $(LIBJSIG_G) ] || { ln -s $@ $(LIBJSIG_G); }
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# gobjcopy crashes on "empty" section headers with the SHF_ALLOC flag set.
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+# An empty section header has sh_addr == 0 and sh_size == 0.
+# This problem has only been seen on Solaris X64, but we call this tool
+# on all Solaris builds just in case.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJSIG_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJSIG_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+# Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) is available.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJSIG_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBJSIG_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
diff -r 84e198dc2474 -r f9d57285de70 make/solaris/makefiles/saproc.make
--- a/make/solaris/makefiles/saproc.make	Mon May 21 14:56:33 2012 -0700
+++ b/make/solaris/makefiles/saproc.make	Thu Jun 07 12:30:02 2012 -0700
@@ -90,7 +90,7 @@
 # when actually building on Nevada-B158 or earlier:
 #SOLARIS_11_B159_OR_LATER=-DSOLARIS_11_B159_OR_LATER
 
-$(LIBSAPROC): $(SASRCFILES) $(SAMAPFILE)
+$(LIBSAPROC): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(SASRCFILES) $(SAMAPFILE)
 	$(QUIETLY) if [ "$(BOOT_JAVA_HOME)" = "" ]; then \
 	  echo "ALT_BOOTDIR, BOOTDIR or JAVA_HOME needs to be defined to build SA"; \
 	  exit 1; \
@@ -109,8 +109,17 @@
 	           -ldl -ldemangle -lthread -lc
 	[ -f $(LIBSAPROC_G) ] || { ln -s $@ $(LIBSAPROC_G); }
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# gobjcopy crashes on "empty" section headers with the SHF_ALLOC flag set.
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+# An empty section header has sh_addr == 0 and sh_size == 0.
+# This problem has only been seen on Solaris X64, but we call this tool
+# on all Solaris builds just in case.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBSAPROC_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBSAPROC_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+# Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) is available.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBSAPROC_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBSAPROC_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
diff -r 84e198dc2474 -r f9d57285de70 make/solaris/makefiles/vm.make
--- a/make/solaris/makefiles/vm.make	Mon May 21 14:56:33 2012 -0700
+++ b/make/solaris/makefiles/vm.make	Thu Jun 07 12:30:02 2012 -0700
@@ -145,6 +145,14 @@
 include $(MAKEFILES_DIR)/dtrace.make
 
 #----------------------------------------------------------------------
+# add_gnu_debuglink tool
+include $(MAKEFILES_DIR)/add_gnu_debuglink.make
+
+#----------------------------------------------------------------------
+# fix_empty_sec_hdr_flags tool
+include $(MAKEFILES_DIR)/fix_empty_sec_hdr_flags.make
+
+#----------------------------------------------------------------------
 # JVM
 
 JVM      = jvm
@@ -276,7 +284,7 @@
 LINK_VM = $(LINK_LIB.CXX)
 endif
 # making the library:
-$(LIBJVM): $(LIBJVM.o) $(LIBJVM_MAPFILE) 
+$(LIBJVM): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(LIBJVM.o) $(LIBJVM_MAPFILE) 
 ifeq ($(filter -sbfast -xsbfast, $(CFLAGS_BROWSE)),)
 	@echo Linking vm...
 	$(QUIETLY) $(LINK_LIB.CXX/PRE_HOOK)
@@ -286,8 +294,17 @@
 	$(QUIETLY) [ -f $(LIBJVM_G) ] || ln -s $@ $(LIBJVM_G)
 	$(QUIETLY) [ -f $(LIBJVM_G).1 ] || ln -s $@.1 $(LIBJVM_G).1
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# gobjcopy crashes on "empty" section headers with the SHF_ALLOC flag set.
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+# An empty section header has sh_addr == 0 and sh_size == 0.
+# This problem has only been seen on Solaris X64, but we call this tool
+# on all Solaris builds just in case.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+# Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) is available.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBJVM_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
diff -r 84e198dc2474 -r f9d57285de70 make/windows/makefiles/defs.make
--- a/make/windows/makefiles/defs.make	Mon May 21 14:56:33 2012 -0700
+++ b/make/windows/makefiles/defs.make	Thu Jun 07 12:30:02 2012 -0700
@@ -143,9 +143,7 @@
 MAKE_ARGS += ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS)
 
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
-  # Disable ZIP_DEBUGINFO_FILES by default because various tests are
-  # failing in nightly when the debug info files are ZIP'ed.
-  ZIP_DEBUGINFO_FILES ?= 0
+  ZIP_DEBUGINFO_FILES ?= 1
 else
   ZIP_DEBUGINFO_FILES=0
 endif
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp
--- a/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -238,9 +238,12 @@
 
   Register result = dst->as_register();
   {
-    // Get a pointer to the first character of string0 in tmp0 and get string0.count in str0
-    // Get a pointer to the first character of string1 in tmp1 and get string1.count in str1
-    // Also, get string0.count-string1.count in o7 and get the condition code set
+    // Get a pointer to the first character of string0 in tmp0
+    //   and get string0.length() in str0
+    // Get a pointer to the first character of string1 in tmp1
+    //   and get string1.length() in str1
+    // Also, get string0.length()-string1.length() in
+    //   o7 and get the condition code set
     // Note: some instructions have been hoisted for better instruction scheduling
 
     Register tmp0 = L0;
@@ -248,27 +251,40 @@
     Register tmp2 = L2;
 
     int  value_offset = java_lang_String:: value_offset_in_bytes(); // char array
-    int offset_offset = java_lang_String::offset_offset_in_bytes(); // first character position
-    int  count_offset = java_lang_String:: count_offset_in_bytes();
-
-    __ load_heap_oop(str0, value_offset, tmp0);
-    __ ld(str0, offset_offset, tmp2);
-    __ add(tmp0, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp0);
-    __ ld(str0, count_offset, str0);
-    __ sll(tmp2, exact_log2(sizeof(jchar)), tmp2);
+    if (java_lang_String::has_offset_field()) {
+      int offset_offset = java_lang_String::offset_offset_in_bytes(); // first character position
+      int  count_offset = java_lang_String:: count_offset_in_bytes();
+      __ load_heap_oop(str0, value_offset, tmp0);
+      __ ld(str0, offset_offset, tmp2);
+      __ add(tmp0, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp0);
+      __ ld(str0, count_offset, str0);
+      __ sll(tmp2, exact_log2(sizeof(jchar)), tmp2);
+    } else {
+      __ load_heap_oop(str0, value_offset, tmp1);
+      __ add(tmp1, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp0);
+      __ ld(tmp1, arrayOopDesc::length_offset_in_bytes(), str0);
+    }
 
     // str1 may be null
     add_debug_info_for_null_check_here(info);
 
-    __ load_heap_oop(str1, value_offset, tmp1);
-    __ add(tmp0, tmp2, tmp0);
-
-    __ ld(str1, offset_offset, tmp2);
-    __ add(tmp1, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp1);
-    __ ld(str1, count_offset, str1);
-    __ sll(tmp2, exact_log2(sizeof(jchar)), tmp2);
+    if (java_lang_String::has_offset_field()) {
+      int offset_offset = java_lang_String::offset_offset_in_bytes(); // first character position
+      int  count_offset = java_lang_String:: count_offset_in_bytes();
+      __ load_heap_oop(str1, value_offset, tmp1);
+      __ add(tmp0, tmp2, tmp0);
+
+      __ ld(str1, offset_offset, tmp2);
+      __ add(tmp1, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp1);
+      __ ld(str1, count_offset, str1);
+      __ sll(tmp2, exact_log2(sizeof(jchar)), tmp2);
+      __ add(tmp1, tmp2, tmp1);
+    } else {
+      __ load_heap_oop(str1, value_offset, tmp2);
+      __ add(tmp2, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp1);
+      __ ld(tmp2, arrayOopDesc::length_offset_in_bytes(), str1);
+    }
     __ subcc(str0, str1, O7);
-    __ add(tmp1, tmp2, tmp1);
   }
 
   {
@@ -302,7 +318,7 @@
     // Shift base0 and base1 to the end of the arrays, negate limit
     __ add(base0, limit, base0);
     __ add(base1, limit, base1);
-    __ neg(limit);  // limit = -min{string0.count, strin1.count}
+    __ neg(limit);  // limit = -min{string0.length(), string1.length()}
 
     __ lduh(base0, limit, chr0);
     __ bind(Lloop);
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/sparc/vm/c1_LIRGenerator_sparc.cpp
--- a/src/cpu/sparc/vm/c1_LIRGenerator_sparc.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/sparc/vm/c1_LIRGenerator_sparc.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -738,7 +738,8 @@
     case vmIntrinsics::_dlog: // fall through
     case vmIntrinsics::_dsin: // fall through
     case vmIntrinsics::_dtan: // fall through
-    case vmIntrinsics::_dcos: {
+    case vmIntrinsics::_dcos: // fall through
+    case vmIntrinsics::_dexp: {
       assert(x->number_of_arguments() == 1, "wrong type");
 
       address runtime_entry = NULL;
@@ -758,12 +759,23 @@
       case vmIntrinsics::_dlog10:
         runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dlog10);
         break;
+      case vmIntrinsics::_dexp:
+        runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dexp);
+        break;
       default:
         ShouldNotReachHere();
       }
 
       LIR_Opr result = call_runtime(x->argument_at(0), runtime_entry, x->type(), NULL);
       set_result(x, result);
+      break;
+    }
+    case vmIntrinsics::_dpow: {
+      assert(x->number_of_arguments() == 2, "wrong type");
+      address runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dpow);
+      LIR_Opr result = call_runtime(x->argument_at(0), x->argument_at(1), runtime_entry, x->type(), NULL);
+      set_result(x, result);
+      break;
     }
   }
 }
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/sparc/vm/interpreter_sparc.cpp
--- a/src/cpu/sparc/vm/interpreter_sparc.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/sparc/vm/interpreter_sparc.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -403,6 +403,8 @@
     case Interpreter::java_lang_math_abs     :                                                                             break;
     case Interpreter::java_lang_math_log     :                                                                             break;
     case Interpreter::java_lang_math_log10   :                                                                             break;
+    case Interpreter::java_lang_math_pow     :                                                                             break;
+    case Interpreter::java_lang_math_exp     :                                                                             break;
     case Interpreter::java_lang_ref_reference_get
                                              : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break;
     default                                  : ShouldNotReachHere();                                                       break;
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/assembler_x86.cpp
--- a/src/cpu/x86/vm/assembler_x86.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/assembler_x86.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -3578,6 +3578,21 @@
   emit_byte(0xF1);
 }
 
+void Assembler::frndint() {
+  emit_byte(0xD9);
+  emit_byte(0xFC);
+}
+
+void Assembler::f2xm1() {
+  emit_byte(0xD9);
+  emit_byte(0xF0);
+}
+
+void Assembler::fldl2e() {
+  emit_byte(0xD9);
+  emit_byte(0xEA);
+}
+
 // SSE SIMD prefix byte values corresponding to VexSimdPrefix encoding.
 static int simd_pre[4] = { 0, 0x66, 0xF3, 0xF2 };
 // SSE opcode second byte values (first is 0x0F) corresponding to VexOpcode encoding.
@@ -6868,6 +6883,243 @@
   Assembler::fldcw(as_Address(src));
 }
 
+void MacroAssembler::pow_exp_core_encoding() {
+  // kills rax, rcx, rdx
+  subptr(rsp,sizeof(jdouble));
+  // computes 2^X. Stack: X ...
+  // f2xm1 computes 2^X-1 but only operates on -1<=X<=1. Get int(X) and
+  // keep it on the thread's stack to compute 2^int(X) later
+  // then compute 2^(X-int(X)) as (2^(X-int(X)-1+1)
+  // final result is obtained with: 2^X = 2^int(X) * 2^(X-int(X))
+  fld_s(0);                 // Stack: X X ...
+  frndint();                // Stack: int(X) X ...
+  fsuba(1);                 // Stack: int(X) X-int(X) ...
+  fistp_s(Address(rsp,0));  // move int(X) as integer to thread's stack. Stack: X-int(X) ...
+  f2xm1();                  // Stack: 2^(X-int(X))-1 ...
+  fld1();                   // Stack: 1 2^(X-int(X))-1 ...
+  faddp(1);                 // Stack: 2^(X-int(X))
+  // computes 2^(int(X)): add exponent bias (1023) to int(X), then
+  // shift int(X)+1023 to exponent position.
+  // Exponent is limited to 11 bits if int(X)+1023 does not fit in 11
+  // bits, set result to NaN. 0x000 and 0x7FF are reserved exponent
+  // values so detect them and set result to NaN.
+  movl(rax,Address(rsp,0));
+  movl(rcx, -2048); // 11 bit mask and valid NaN binary encoding
+  addl(rax, 1023);
+  movl(rdx,rax);
+  shll(rax,20);
+  // Check that 0 < int(X)+1023 < 2047. Otherwise set rax to NaN.
+  addl(rdx,1);
+  // Check that 1 < int(X)+1023+1 < 2048
+  // in 3 steps:
+  // 1- (int(X)+1023+1)&-2048 == 0 => 0 <= int(X)+1023+1 < 2048
+  // 2- (int(X)+1023+1)&-2048 != 0
+  // 3- (int(X)+1023+1)&-2048 != 1
+  // Do 2- first because addl just updated the flags.
+  cmov32(Assembler::equal,rax,rcx);
+  cmpl(rdx,1);
+  cmov32(Assembler::equal,rax,rcx);
+  testl(rdx,rcx);
+  cmov32(Assembler::notEqual,rax,rcx);
+  movl(Address(rsp,4),rax);
+  movl(Address(rsp,0),0);
+  fmul_d(Address(rsp,0));   // Stack: 2^X ...
+  addptr(rsp,sizeof(jdouble));
+}
+
+void MacroAssembler::fast_pow() {
+  // computes X^Y = 2^(Y * log2(X))
+  // if fast computation is not possible, result is NaN. Requires
+  // fallback from user of this macro.
+  fyl2x();                 // Stack: (Y*log2(X)) ...
+  pow_exp_core_encoding(); // Stack: exp(X) ...
+}
+
+void MacroAssembler::fast_exp() {
+  // computes exp(X) = 2^(X * log2(e))
+  // if fast computation is not possible, result is NaN. Requires
+  // fallback from user of this macro.
+  fldl2e();                // Stack: log2(e) X ...
+  fmulp(1);                // Stack: (X*log2(e)) ...
+  pow_exp_core_encoding(); // Stack: exp(X) ...
+}
+
+void MacroAssembler::pow_or_exp(bool is_exp, int num_fpu_regs_in_use) {
+  // kills rax, rcx, rdx
+  // pow and exp needs 2 extra registers on the fpu stack.
+  Label slow_case, done;
+  Register tmp = noreg;
+  if (!VM_Version::supports_cmov()) {
+    // fcmp needs a temporary so preserve rdx,
+    tmp = rdx;
+  }
+  Register tmp2 = rax;
+  Register tmp3 = rcx;
+
+  if (is_exp) {
+    // Stack: X
+    fld_s(0);                   // duplicate argument for runtime call. Stack: X X
+    fast_exp();                 // Stack: exp(X) X
+    fcmp(tmp, 0, false, false); // Stack: exp(X) X
+    // exp(X) not equal to itself: exp(X) is NaN go to slow case.
+    jcc(Assembler::parity, slow_case);
+    // get rid of duplicate argument. Stack: exp(X)
+    if (num_fpu_regs_in_use > 0) {
+      fxch();
+      fpop();
+    } else {
+      ffree(1);
+    }
+    jmp(done);
+  } else {
+    // Stack: X Y
+    Label x_negative, y_odd;
+
+    fldz();                     // Stack: 0 X Y
+    fcmp(tmp, 1, true, false);  // Stack: X Y
+    jcc(Assembler::above, x_negative);
+
+    // X >= 0
+
+    fld_s(1);                   // duplicate arguments for runtime call. Stack: Y X Y
+    fld_s(1);                   // Stack: X Y X Y
+    fast_pow();                 // Stack: X^Y X Y
+    fcmp(tmp, 0, false, false); // Stack: X^Y X Y
+    // X^Y not equal to itself: X^Y is NaN go to slow case.
+    jcc(Assembler::parity, slow_case);
+    // get rid of duplicate arguments. Stack: X^Y
+    if (num_fpu_regs_in_use > 0) {
+      fxch(); fpop();
+      fxch(); fpop();
+    } else {
+      ffree(2);
+      ffree(1);
+    }
+    jmp(done);
+
+    // X <= 0
+    bind(x_negative);
+
+    fld_s(1);                   // Stack: Y X Y
+    frndint();                  // Stack: int(Y) X Y
+    fcmp(tmp, 2, false, false); // Stack: int(Y) X Y
+    jcc(Assembler::notEqual, slow_case);
+
+    subptr(rsp, 8);
+
+    // For X^Y, when X < 0, Y has to be an integer and the final
+    // result depends on whether it's odd or even. We just checked
+    // that int(Y) == Y.  We move int(Y) to gp registers as a 64 bit
+    // integer to test its parity. If int(Y) is huge and doesn't fit
+    // in the 64 bit integer range, the integer indefinite value will
+    // end up in the gp registers. Huge numbers are all even, the
+    // integer indefinite number is even so it's fine.
+
+#ifdef ASSERT
+    // Let's check we don't end up with an integer indefinite number
+    // when not expected. First test for huge numbers: check whether
+    // int(Y)+1 == int(Y) which is true for very large numbers and
+    // those are all even. A 64 bit integer is guaranteed to not
+    // overflow for numbers where y+1 != y (when precision is set to
+    // double precision).
+    Label y_not_huge;
+
+    fld1();                     // Stack: 1 int(Y) X Y
+    fadd(1);                    // Stack: 1+int(Y) int(Y) X Y
+
+#ifdef _LP64
+    // trip to memory to force the precision down from double extended
+    // precision
+    fstp_d(Address(rsp, 0));
+    fld_d(Address(rsp, 0));
+#endif
+
+    fcmp(tmp, 1, true, false);  // Stack: int(Y) X Y
+#endif
+
+    // move int(Y) as 64 bit integer to thread's stack
+    fistp_d(Address(rsp,0));    // Stack: X Y
+
+#ifdef ASSERT
+    jcc(Assembler::notEqual, y_not_huge);
+
+    // Y is huge so we know it's even. It may not fit in a 64 bit
+    // integer and we don't want the debug code below to see the
+    // integer indefinite value so overwrite int(Y) on the thread's
+    // stack with 0.
+    movl(Address(rsp, 0), 0);
+    movl(Address(rsp, 4), 0);
+
+    bind(y_not_huge);
+#endif
+
+    fld_s(1);                   // duplicate arguments for runtime call. Stack: Y X Y
+    fld_s(1);                   // Stack: X Y X Y
+    fabs();                     // Stack: abs(X) Y X Y
+    fast_pow();                 // Stack: abs(X)^Y X Y
+    fcmp(tmp, 0, false, false); // Stack: abs(X)^Y X Y
+    // abs(X)^Y not equal to itself: abs(X)^Y is NaN go to slow case.
+
+    pop(tmp2);
+    NOT_LP64(pop(tmp3));
+    jcc(Assembler::parity, slow_case);
+
+#ifdef ASSERT
+    // Check that int(Y) is not integer indefinite value (int
+    // overflow). Shouldn't happen because for values that would
+    // overflow, 1+int(Y)==Y which was tested earlier.
+#ifndef _LP64
+    {
+      Label integer;
+      testl(tmp2, tmp2);
+      jcc(Assembler::notZero, integer);
+      cmpl(tmp3, 0x80000000);
+      jcc(Assembler::notZero, integer);
+      stop("integer indefinite value shouldn't be seen here");
+      bind(integer);
+    }
+#else
+    {
+      Label integer;
+      mov(tmp3, tmp2); // preserve tmp2 for parity check below
+      shlq(tmp3, 1);
+      jcc(Assembler::carryClear, integer);
+      jcc(Assembler::notZero, integer);
+      stop("integer indefinite value shouldn't be seen here");
+      bind(integer);
+    }
+#endif
+#endif
+
+    // get rid of duplicate arguments. Stack: X^Y
+    if (num_fpu_regs_in_use > 0) {
+      fxch(); fpop();
+      fxch(); fpop();
+    } else {
+      ffree(2);
+      ffree(1);
+    }
+
+    testl(tmp2, 1);
+    jcc(Assembler::zero, done); // X <= 0, Y even: X^Y = abs(X)^Y
+    // X <= 0, Y even: X^Y = -abs(X)^Y
+
+    fchs();                     // Stack: -abs(X)^Y Y
+    jmp(done);
+  }
+
+  // slow case: runtime call
+  bind(slow_case);
+
+  fpop();                       // pop incorrect result or int(Y)
+
+  fp_runtime_fallback(is_exp ? CAST_FROM_FN_PTR(address, SharedRuntime::dexp) : CAST_FROM_FN_PTR(address, SharedRuntime::dpow),
+                      is_exp ? 1 : 2, num_fpu_regs_in_use);
+
+  // Come here with result in F-TOS
+  bind(done);
+}
+
 void MacroAssembler::fpop() {
   ffree();
   fincstp();
@@ -8045,6 +8297,144 @@
 #endif
 }
 
+void MacroAssembler::fp_runtime_fallback(address runtime_entry, int nb_args, int num_fpu_regs_in_use) {
+  pusha();
+
+  // if we are coming from c1, xmm registers may be live
+  if (UseSSE >= 1) {
+    subptr(rsp, sizeof(jdouble)* LP64_ONLY(16) NOT_LP64(8));
+  }
+  int off = 0;
+  if (UseSSE == 1)  {
+    movflt(Address(rsp,off++*sizeof(jdouble)),xmm0);
+    movflt(Address(rsp,off++*sizeof(jdouble)),xmm1);
+    movflt(Address(rsp,off++*sizeof(jdouble)),xmm2);
+    movflt(Address(rsp,off++*sizeof(jdouble)),xmm3);
+    movflt(Address(rsp,off++*sizeof(jdouble)),xmm4);
+    movflt(Address(rsp,off++*sizeof(jdouble)),xmm5);
+    movflt(Address(rsp,off++*sizeof(jdouble)),xmm6);
+    movflt(Address(rsp,off++*sizeof(jdouble)),xmm7);
+  } else if (UseSSE >= 2)  {
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm0);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm1);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm2);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm3);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm4);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm5);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm6);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm7);
+#ifdef _LP64
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm8);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm9);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm10);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm11);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm12);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm13);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm14);
+    movdbl(Address(rsp,off++*sizeof(jdouble)),xmm15);
+#endif
+  }
+
+  // Preserve registers across runtime call
+  int incoming_argument_and_return_value_offset = -1;
+  if (num_fpu_regs_in_use > 1) {
+    // Must preserve all other FPU regs (could alternatively convert
+    // SharedRuntime::dsin, dcos etc. into assembly routines known not to trash
+    // FPU state, but can not trust C compiler)
+    NEEDS_CLEANUP;
+    // NOTE that in this case we also push the incoming argument(s) to
+    // the stack and restore it later; we also use this stack slot to
+    // hold the return value from dsin, dcos etc.
+    for (int i = 0; i < num_fpu_regs_in_use; i++) {
+      subptr(rsp, sizeof(jdouble));
+      fstp_d(Address(rsp, 0));
+    }
+    incoming_argument_and_return_value_offset = sizeof(jdouble)*(num_fpu_regs_in_use-1);
+    for (int i = nb_args-1; i >= 0; i--) {
+      fld_d(Address(rsp, incoming_argument_and_return_value_offset-i*sizeof(jdouble)));
+    }
+  }
+
+  subptr(rsp, nb_args*sizeof(jdouble));
+  for (int i = 0; i < nb_args; i++) {
+    fstp_d(Address(rsp, i*sizeof(jdouble)));
+  }
+
+#ifdef _LP64
+  if (nb_args > 0) {
+    movdbl(xmm0, Address(rsp, 0));
+  }
+  if (nb_args > 1) {
+    movdbl(xmm1, Address(rsp, sizeof(jdouble)));
+  }
+  assert(nb_args <= 2, "unsupported number of args");
+#endif // _LP64
+
+  // NOTE: we must not use call_VM_leaf here because that requires a
+  // complete interpreter frame in debug mode -- same bug as 4387334
+  // MacroAssembler::call_VM_leaf_base is perfectly safe and will
+  // do proper 64bit abi
+
+  NEEDS_CLEANUP;
+  // Need to add stack banging before this runtime call if it needs to
+  // be taken; however, there is no generic stack banging routine at
+  // the MacroAssembler level
+
+  MacroAssembler::call_VM_leaf_base(runtime_entry, 0);
+
+#ifdef _LP64
+  movsd(Address(rsp, 0), xmm0);
+  fld_d(Address(rsp, 0));
+#endif // _LP64
+  addptr(rsp, sizeof(jdouble) * nb_args);
+  if (num_fpu_regs_in_use > 1) {
+    // Must save return value to stack and then restore entire FPU
+    // stack except incoming arguments
+    fstp_d(Address(rsp, incoming_argument_and_return_value_offset));
+    for (int i = 0; i < num_fpu_regs_in_use - nb_args; i++) {
+      fld_d(Address(rsp, 0));
+      addptr(rsp, sizeof(jdouble));
+    }
+    fld_d(Address(rsp, (nb_args-1)*sizeof(jdouble)));
+    addptr(rsp, sizeof(jdouble) * nb_args);
+  }
+
+  off = 0;
+  if (UseSSE == 1)  {
+    movflt(xmm0, Address(rsp,off++*sizeof(jdouble)));
+    movflt(xmm1, Address(rsp,off++*sizeof(jdouble)));
+    movflt(xmm2, Address(rsp,off++*sizeof(jdouble)));
+    movflt(xmm3, Address(rsp,off++*sizeof(jdouble)));
+    movflt(xmm4, Address(rsp,off++*sizeof(jdouble)));
+    movflt(xmm5, Address(rsp,off++*sizeof(jdouble)));
+    movflt(xmm6, Address(rsp,off++*sizeof(jdouble)));
+    movflt(xmm7, Address(rsp,off++*sizeof(jdouble)));
+  } else if (UseSSE >= 2)  {
+    movdbl(xmm0, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm1, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm2, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm3, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm4, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm5, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm6, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm7, Address(rsp,off++*sizeof(jdouble)));
+#ifdef _LP64
+    movdbl(xmm8, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm9, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm10, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm11, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm12, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm13, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm14, Address(rsp,off++*sizeof(jdouble)));
+    movdbl(xmm15, Address(rsp,off++*sizeof(jdouble)));
+#endif
+  }
+  if (UseSSE >= 1) {
+    addptr(rsp, sizeof(jdouble)* LP64_ONLY(16) NOT_LP64(8));
+  }
+  popa();
+}
+
 static const double     pi_4 =  0.7853981633974483;
 
 void MacroAssembler::trigfunc(char trig, int num_fpu_regs_in_use) {
@@ -8092,73 +8482,27 @@
 
   // slow case: runtime call
   bind(slow_case);
-  // Preserve registers across runtime call
-  pusha();
-  int incoming_argument_and_return_value_offset = -1;
-  if (num_fpu_regs_in_use > 1) {
-    // Must preserve all other FPU regs (could alternatively convert
-    // SharedRuntime::dsin and dcos into assembly routines known not to trash
-    // FPU state, but can not trust C compiler)
-    NEEDS_CLEANUP;
-    // NOTE that in this case we also push the incoming argument to
-    // the stack and restore it later; we also use this stack slot to
-    // hold the return value from dsin or dcos.
-    for (int i = 0; i < num_fpu_regs_in_use; i++) {
-      subptr(rsp, sizeof(jdouble));
-      fstp_d(Address(rsp, 0));
-    }
-    incoming_argument_and_return_value_offset = sizeof(jdouble)*(num_fpu_regs_in_use-1);
-    fld_d(Address(rsp, incoming_argument_and_return_value_offset));
-  }
-  subptr(rsp, sizeof(jdouble));
-  fstp_d(Address(rsp, 0));
-#ifdef _LP64
-  movdbl(xmm0, Address(rsp, 0));
-#endif // _LP64
-
-  // NOTE: we must not use call_VM_leaf here because that requires a
-  // complete interpreter frame in debug mode -- same bug as 4387334
-  // MacroAssembler::call_VM_leaf_base is perfectly safe and will
-  // do proper 64bit abi
-
-  NEEDS_CLEANUP;
-  // Need to add stack banging before this runtime call if it needs to
-  // be taken; however, there is no generic stack banging routine at
-  // the MacroAssembler level
+
   switch(trig) {
   case 's':
     {
-      MacroAssembler::call_VM_leaf_base(CAST_FROM_FN_PTR(address, SharedRuntime::dsin), 0);
+      fp_runtime_fallback(CAST_FROM_FN_PTR(address, SharedRuntime::dsin), 1, num_fpu_regs_in_use);
     }
     break;
   case 'c':
     {
-      MacroAssembler::call_VM_leaf_base(CAST_FROM_FN_PTR(address, SharedRuntime::dcos), 0);
+      fp_runtime_fallback(CAST_FROM_FN_PTR(address, SharedRuntime::dcos), 1, num_fpu_regs_in_use);
     }
     break;
   case 't':
     {
-      MacroAssembler::call_VM_leaf_base(CAST_FROM_FN_PTR(address, SharedRuntime::dtan), 0);
+      fp_runtime_fallback(CAST_FROM_FN_PTR(address, SharedRuntime::dtan), 1, num_fpu_regs_in_use);
     }
     break;
   default:
     assert(false, "bad intrinsic");
     break;
   }
-#ifdef _LP64
-    movsd(Address(rsp, 0), xmm0);
-    fld_d(Address(rsp, 0));
-#endif // _LP64
-  addptr(rsp, sizeof(jdouble));
-  if (num_fpu_regs_in_use > 1) {
-    // Must save return value to stack and then restore entire FPU stack
-    fstp_d(Address(rsp, incoming_argument_and_return_value_offset));
-    for (int i = 0; i < num_fpu_regs_in_use; i++) {
-      fld_d(Address(rsp, 0));
-      addptr(rsp, sizeof(jdouble));
-    }
-  }
-  popa();
 
   // Come here with result in F-TOS
   bind(done);
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/assembler_x86.hpp
--- a/src/cpu/x86/vm/assembler_x86.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/assembler_x86.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1148,6 +1148,9 @@
   void fxsave(Address dst);
 
   void fyl2x();
+  void frndint();
+  void f2xm1();
+  void fldl2e();
 
   void hlt();
 
@@ -2387,7 +2390,28 @@
   void ldmxcsr(Address src) { Assembler::ldmxcsr(src); }
   void ldmxcsr(AddressLiteral src);
 
+  // compute pow(x,y) and exp(x) with x86 instructions. Don't cover
+  // all corner cases and may result in NaN and require fallback to a
+  // runtime call.
+  void fast_pow();
+  void fast_exp();
+
+  // computes exp(x). Fallback to runtime call included.
+  void exp_with_fallback(int num_fpu_regs_in_use) { pow_or_exp(true, num_fpu_regs_in_use); }
+  // computes pow(x,y). Fallback to runtime call included.
+  void pow_with_fallback(int num_fpu_regs_in_use) { pow_or_exp(false, num_fpu_regs_in_use); }
+
 private:
+
+  // call runtime as a fallback for trig functions and pow/exp.
+  void fp_runtime_fallback(address runtime_entry, int nb_args, int num_fpu_regs_in_use);
+
+  // computes 2^(Ylog2X); Ylog2X in ST(0)
+  void pow_exp_core_encoding();
+
+  // computes pow(x,y) or exp(x). Fallback to runtime call included.
+  void pow_or_exp(bool is_exp, int num_fpu_regs_in_use);
+
   // these are private because users should be doing movflt/movdbl
 
   void movss(Address dst, XMMRegister src)     { Assembler::movss(dst, src); }
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
--- a/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -505,19 +505,28 @@
 
   // Get addresses of first characters from both Strings
   __ load_heap_oop(rsi, Address(rax, java_lang_String::value_offset_in_bytes()));
-  __ movptr       (rcx, Address(rax, java_lang_String::offset_offset_in_bytes()));
-  __ lea          (rsi, Address(rsi, rcx, Address::times_2, arrayOopDesc::base_offset_in_bytes(T_CHAR)));
-
+  if (java_lang_String::has_offset_field()) {
+    __ movptr     (rcx, Address(rax, java_lang_String::offset_offset_in_bytes()));
+    __ movl       (rax, Address(rax, java_lang_String::count_offset_in_bytes()));
+    __ lea        (rsi, Address(rsi, rcx, Address::times_2, arrayOopDesc::base_offset_in_bytes(T_CHAR)));
+  } else {
+    __ movl       (rax, Address(rsi, arrayOopDesc::length_offset_in_bytes()));
+    __ lea        (rsi, Address(rsi, arrayOopDesc::base_offset_in_bytes(T_CHAR)));
+  }
 
   // rbx, may be NULL
   add_debug_info_for_null_check_here(info);
   __ load_heap_oop(rdi, Address(rbx, java_lang_String::value_offset_in_bytes()));
-  __ movptr       (rcx, Address(rbx, java_lang_String::offset_offset_in_bytes()));
-  __ lea          (rdi, Address(rdi, rcx, Address::times_2, arrayOopDesc::base_offset_in_bytes(T_CHAR)));
+  if (java_lang_String::has_offset_field()) {
+    __ movptr     (rcx, Address(rbx, java_lang_String::offset_offset_in_bytes()));
+    __ movl       (rbx, Address(rbx, java_lang_String::count_offset_in_bytes()));
+    __ lea        (rdi, Address(rdi, rcx, Address::times_2, arrayOopDesc::base_offset_in_bytes(T_CHAR)));
+  } else {
+    __ movl       (rbx, Address(rdi, arrayOopDesc::length_offset_in_bytes()));
+    __ lea        (rdi, Address(rdi, arrayOopDesc::base_offset_in_bytes(T_CHAR)));
+  }
 
   // compute minimum length (in rax) and difference of lengths (on top of stack)
-  __ movl  (rbx, Address(rbx, java_lang_String::count_offset_in_bytes()));
-  __ movl  (rax, Address(rax, java_lang_String::count_offset_in_bytes()));
   __ mov   (rcx, rbx);
   __ subptr(rbx, rax); // subtract lengths
   __ push  (rbx);      // result
@@ -2437,6 +2446,12 @@
         // Should consider not saving rbx, if not necessary
         __ trigfunc('t', op->as_Op2()->fpu_stack_size());
         break;
+      case lir_exp :
+        __ exp_with_fallback(op->as_Op2()->fpu_stack_size());
+        break;
+      case lir_pow :
+        __ pow_with_fallback(op->as_Op2()->fpu_stack_size());
+        break;
       default      : ShouldNotReachHere();
     }
   } else {
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/c1_LIRGenerator_x86.cpp
--- a/src/cpu/x86/vm/c1_LIRGenerator_x86.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/c1_LIRGenerator_x86.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -823,7 +823,7 @@
 
 
 void LIRGenerator::do_MathIntrinsic(Intrinsic* x) {
-  assert(x->number_of_arguments() == 1, "wrong type");
+  assert(x->number_of_arguments() == 1 || (x->number_of_arguments() == 2 && x->id() == vmIntrinsics::_dpow), "wrong type");
   LIRItem value(x->argument_at(0), this);
 
   bool use_fpu = false;
@@ -834,6 +834,8 @@
       case vmIntrinsics::_dtan:
       case vmIntrinsics::_dlog:
       case vmIntrinsics::_dlog10:
+      case vmIntrinsics::_dexp:
+      case vmIntrinsics::_dpow:
         use_fpu = true;
     }
   } else {
@@ -843,20 +845,37 @@
   value.load_item();
 
   LIR_Opr calc_input = value.result();
+  LIR_Opr calc_input2 = NULL;
+  if (x->id() == vmIntrinsics::_dpow) {
+    LIRItem extra_arg(x->argument_at(1), this);
+    if (UseSSE < 2) {
+      extra_arg.set_destroys_register();
+    }
+    extra_arg.load_item();
+    calc_input2 = extra_arg.result();
+  }
   LIR_Opr calc_result = rlock_result(x);
 
-  // sin and cos need two free fpu stack slots, so register two temporary operands
+  // sin, cos, pow and exp need two free fpu stack slots, so register
+  // two temporary operands
   LIR_Opr tmp1 = FrameMap::caller_save_fpu_reg_at(0);
   LIR_Opr tmp2 = FrameMap::caller_save_fpu_reg_at(1);
 
   if (use_fpu) {
     LIR_Opr tmp = FrameMap::fpu0_double_opr;
+    int tmp_start = 1;
+    if (calc_input2 != NULL) {
+      __ move(calc_input2, tmp);
+      tmp_start = 2;
+      calc_input2 = tmp;
+    }
     __ move(calc_input, tmp);
 
     calc_input = tmp;
     calc_result = tmp;
-    tmp1 = FrameMap::caller_save_fpu_reg_at(1);
-    tmp2 = FrameMap::caller_save_fpu_reg_at(2);
+
+    tmp1 = FrameMap::caller_save_fpu_reg_at(tmp_start);
+    tmp2 = FrameMap::caller_save_fpu_reg_at(tmp_start + 1);
   }
 
   switch(x->id()) {
@@ -867,6 +886,8 @@
     case vmIntrinsics::_dtan:   __ tan  (calc_input, calc_result, tmp1, tmp2);              break;
     case vmIntrinsics::_dlog:   __ log  (calc_input, calc_result, tmp1);                    break;
     case vmIntrinsics::_dlog10: __ log10(calc_input, calc_result, tmp1);                    break;
+    case vmIntrinsics::_dexp:   __ exp  (calc_input, calc_result,              tmp1, tmp2, FrameMap::rax_opr, FrameMap::rcx_opr, FrameMap::rdx_opr); break;
+    case vmIntrinsics::_dpow:   __ pow  (calc_input, calc_input2, calc_result, tmp1, tmp2, FrameMap::rax_opr, FrameMap::rcx_opr, FrameMap::rdx_opr); break;
     default:                    ShouldNotReachHere();
   }
 
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/c1_LinearScan_x86.cpp
--- a/src/cpu/x86/vm/c1_LinearScan_x86.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/c1_LinearScan_x86.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -690,8 +690,8 @@
 
     case lir_mul_strictfp:
     case lir_div_strictfp: {
-      assert(op2->tmp_opr()->is_fpu_register(), "strict operations need temporary fpu stack slot");
-      insert_free_if_dead(op2->tmp_opr());
+      assert(op2->tmp1_opr()->is_fpu_register(), "strict operations need temporary fpu stack slot");
+      insert_free_if_dead(op2->tmp1_opr());
       assert(sim()->stack_size() <= 7, "at least one stack slot must be free");
       // fall-through: continue with the normal handling of lir_mul and lir_div
     }
@@ -787,16 +787,17 @@
 
     case lir_log:
     case lir_log10: {
-      // log and log10 needs one temporary fpu stack slot, so there is ontemporary
-      // registers stored in temp of the operation.
-      // the stack allocator must guarantee that the stack slots are really free,
-      // otherwise there might be a stack overflow.
+      // log and log10 need one temporary fpu stack slot, so
+      // there is one temporary registers stored in temp of the
+      // operation. the stack allocator must guarantee that the stack
+      // slots are really free, otherwise there might be a stack
+      // overflow.
       assert(right->is_illegal(), "must be");
       assert(left->is_fpu_register(), "must be");
       assert(res->is_fpu_register(), "must be");
-      assert(op2->tmp_opr()->is_fpu_register(), "must be");
+      assert(op2->tmp1_opr()->is_fpu_register(), "must be");
 
-      insert_free_if_dead(op2->tmp_opr());
+      insert_free_if_dead(op2->tmp1_opr());
       insert_free_if_dead(res, left);
       insert_exchange(left);
       do_rename(left, res);
@@ -812,8 +813,9 @@
 
     case lir_tan:
     case lir_sin:
-    case lir_cos: {
-      // sin and cos need two temporary fpu stack slots, so there are two temporary
+    case lir_cos:
+    case lir_exp: {
+      // sin, cos and exp need two temporary fpu stack slots, so there are two temporary
       // registers (stored in right and temp of the operation).
       // the stack allocator must guarantee that the stack slots are really free,
       // otherwise there might be a stack overflow.
@@ -821,11 +823,11 @@
       assert(res->is_fpu_register(), "must be");
       // assert(left->is_last_use(), "old value gets destroyed");
       assert(right->is_fpu_register(), "right is used as the first temporary register");
-      assert(op2->tmp_opr()->is_fpu_register(), "temp is used as the second temporary register");
-      assert(fpu_num(left) != fpu_num(right) && fpu_num(right) != fpu_num(op2->tmp_opr()) && fpu_num(op2->tmp_opr()) != fpu_num(res), "need distinct temp registers");
+      assert(op2->tmp1_opr()->is_fpu_register(), "temp is used as the second temporary register");
+      assert(fpu_num(left) != fpu_num(right) && fpu_num(right) != fpu_num(op2->tmp1_opr()) && fpu_num(op2->tmp1_opr()) != fpu_num(res), "need distinct temp registers");
 
       insert_free_if_dead(right);
-      insert_free_if_dead(op2->tmp_opr());
+      insert_free_if_dead(op2->tmp1_opr());
 
       insert_free_if_dead(res, left);
       insert_exchange(left);
@@ -839,6 +841,53 @@
       break;
     }
 
+    case lir_pow: {
+      // pow needs two temporary fpu stack slots, so there are two temporary
+      // registers (stored in tmp1 and tmp2 of the operation).
+      // the stack allocator must guarantee that the stack slots are really free,
+      // otherwise there might be a stack overflow.
+      assert(left->is_fpu_register(), "must be");
+      assert(right->is_fpu_register(), "must be");
+      assert(res->is_fpu_register(), "must be");
+
+      assert(op2->tmp1_opr()->is_fpu_register(), "tmp1 is the first temporary register");
+      assert(op2->tmp2_opr()->is_fpu_register(), "tmp2 is the second temporary register");
+      assert(fpu_num(left) != fpu_num(right) && fpu_num(left) != fpu_num(op2->tmp1_opr()) && fpu_num(left) != fpu_num(op2->tmp2_opr()) && fpu_num(left) != fpu_num(res), "need distinct temp registers");
+      assert(fpu_num(right) != fpu_num(op2->tmp1_opr()) && fpu_num(right) != fpu_num(op2->tmp2_opr()) && fpu_num(right) != fpu_num(res), "need distinct temp registers");
+      assert(fpu_num(op2->tmp1_opr()) != fpu_num(op2->tmp2_opr()) && fpu_num(op2->tmp1_opr()) != fpu_num(res), "need distinct temp registers");
+      assert(fpu_num(op2->tmp2_opr()) != fpu_num(res), "need distinct temp registers");
+
+      insert_free_if_dead(op2->tmp1_opr());
+      insert_free_if_dead(op2->tmp2_opr());
+
+      // Must bring both operands to top of stack with following operand ordering:
+      // * fpu stack before pow: ... right left
+      // * fpu stack after pow:  ... left
+
+      insert_free_if_dead(res, right);
+
+      if (tos_offset(right) != 1) {
+        insert_exchange(right);
+        insert_exchange(1);
+      }
+      insert_exchange(left);
+      assert(tos_offset(right) == 1, "check");
+      assert(tos_offset(left) == 0, "check");
+
+      new_left = to_fpu_stack_top(left);
+      new_right = to_fpu_stack(right);
+
+      op2->set_fpu_stack_size(sim()->stack_size());
+      assert(sim()->stack_size() <= 6, "at least two stack slots must be free");
+
+      sim()->pop();
+
+      do_rename(right, res);
+
+      new_res = to_fpu_stack_top(res);
+      break;
+    }
+
     default: {
       assert(false, "missed a fpu-operation");
     }
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/interpreter_x86_32.cpp
--- a/src/cpu/x86/vm/interpreter_x86_32.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/interpreter_x86_32.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -181,6 +181,19 @@
         __ push_fTOS();
         __ pop_fTOS();
         break;
+    case Interpreter::java_lang_math_pow:
+      __ fld_d(Address(rsp, 3*wordSize)); // second argument
+      __ pow_with_fallback(0);
+      // Store to stack to convert 80bit precision back to 64bits
+      __ push_fTOS();
+      __ pop_fTOS();
+      break;
+    case Interpreter::java_lang_math_exp:
+      __ exp_with_fallback(0);
+      // Store to stack to convert 80bit precision back to 64bits
+      __ push_fTOS();
+      __ pop_fTOS();
+      break;
     default                              :
         ShouldNotReachHere();
   }
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/interpreter_x86_64.cpp
--- a/src/cpu/x86/vm/interpreter_x86_64.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/interpreter_x86_64.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -271,6 +271,14 @@
       case Interpreter::java_lang_math_log10:
           __ flog10();
           break;
+      case Interpreter::java_lang_math_pow:
+          __ fld_d(Address(rsp, 3*wordSize)); // second argument (one
+                                              // empty stack slot)
+          __ pow_with_fallback(0);
+          break;
+      case Interpreter::java_lang_math_exp:
+          __ exp_with_fallback(0);
+           break;
       default                              :
           ShouldNotReachHere();
     }
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/stubGenerator_x86_32.cpp
--- a/src/cpu/x86/vm/stubGenerator_x86_32.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/stubGenerator_x86_32.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -2136,11 +2136,23 @@
       __ trigfunc('t');
       __ ret(0);
     }
+    {
+      StubCodeMark mark(this, "StubRoutines", "exp");
+      StubRoutines::_intrinsic_exp = (double (*)(double)) __ pc();
 
-    // The intrinsic version of these seem to return the same value as
-    // the strict version.
-    StubRoutines::_intrinsic_exp = SharedRuntime::dexp;
-    StubRoutines::_intrinsic_pow = SharedRuntime::dpow;
+      __ fld_d(Address(rsp, 4));
+      __ exp_with_fallback(0);
+      __ ret(0);
+    }
+    {
+      StubCodeMark mark(this, "StubRoutines", "pow");
+      StubRoutines::_intrinsic_pow = (double (*)(double,double)) __ pc();
+
+      __ fld_d(Address(rsp, 12));
+      __ fld_d(Address(rsp, 4));
+      __ pow_with_fallback(0);
+      __ ret(0);
+    }
   }
 
  public:
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/stubGenerator_x86_64.cpp
--- a/src/cpu/x86/vm/stubGenerator_x86_64.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/stubGenerator_x86_64.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -2928,11 +2928,34 @@
       __ addq(rsp, 8);
       __ ret(0);
     }
-
-    // The intrinsic version of these seem to return the same value as
-    // the strict version.
-    StubRoutines::_intrinsic_exp = SharedRuntime::dexp;
-    StubRoutines::_intrinsic_pow = SharedRuntime::dpow;
+    {
+      StubCodeMark mark(this, "StubRoutines", "exp");
+      StubRoutines::_intrinsic_exp = (double (*)(double)) __ pc();
+
+      __ subq(rsp, 8);
+      __ movdbl(Address(rsp, 0), xmm0);
+      __ fld_d(Address(rsp, 0));
+      __ exp_with_fallback(0);
+      __ fstp_d(Address(rsp, 0));
+      __ movdbl(xmm0, Address(rsp, 0));
+      __ addq(rsp, 8);
+      __ ret(0);
+    }
+    {
+      StubCodeMark mark(this, "StubRoutines", "pow");
+      StubRoutines::_intrinsic_pow = (double (*)(double,double)) __ pc();
+
+      __ subq(rsp, 8);
+      __ movdbl(Address(rsp, 0), xmm1);
+      __ fld_d(Address(rsp, 0));
+      __ movdbl(Address(rsp, 0), xmm0);
+      __ fld_d(Address(rsp, 0));
+      __ pow_with_fallback(0);
+      __ fstp_d(Address(rsp, 0));
+      __ movdbl(xmm0, Address(rsp, 0));
+      __ addq(rsp, 8);
+      __ ret(0);
+    }
   }
 
 #undef __
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/templateInterpreter_x86_32.cpp
--- a/src/cpu/x86/vm/templateInterpreter_x86_32.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/templateInterpreter_x86_32.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1518,7 +1518,9 @@
     case Interpreter::java_lang_math_abs     : // fall thru
     case Interpreter::java_lang_math_log     : // fall thru
     case Interpreter::java_lang_math_log10   : // fall thru
-    case Interpreter::java_lang_math_sqrt    : entry_point = ((InterpreterGenerator*)this)->generate_math_entry(kind);     break;
+    case Interpreter::java_lang_math_sqrt    : // fall thru
+    case Interpreter::java_lang_math_pow     : // fall thru
+    case Interpreter::java_lang_math_exp     : entry_point = ((InterpreterGenerator*)this)->generate_math_entry(kind);     break;
     case Interpreter::java_lang_ref_reference_get
                                              : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break;
     default                                  : ShouldNotReachHere();                                                       break;
@@ -1540,7 +1542,9 @@
     case Interpreter::java_lang_math_abs     : // fall thru
     case Interpreter::java_lang_math_log     : // fall thru
     case Interpreter::java_lang_math_log10   : // fall thru
-    case Interpreter::java_lang_math_sqrt    :
+    case Interpreter::java_lang_math_sqrt    : // fall thru
+    case Interpreter::java_lang_math_pow     : // fall thru
+    case Interpreter::java_lang_math_exp     :
       return false;
     default:
       return true;
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/templateInterpreter_x86_64.cpp
--- a/src/cpu/x86/vm/templateInterpreter_x86_64.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/templateInterpreter_x86_64.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1534,7 +1534,9 @@
   case Interpreter::java_lang_math_abs     : // fall thru
   case Interpreter::java_lang_math_log     : // fall thru
   case Interpreter::java_lang_math_log10   : // fall thru
-  case Interpreter::java_lang_math_sqrt    : entry_point = ((InterpreterGenerator*) this)->generate_math_entry(kind);    break;
+  case Interpreter::java_lang_math_sqrt    : // fall thru
+  case Interpreter::java_lang_math_pow     : // fall thru
+  case Interpreter::java_lang_math_exp     : entry_point = ((InterpreterGenerator*) this)->generate_math_entry(kind);    break;
   case Interpreter::java_lang_ref_reference_get
                                            : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break;
   default                                  : ShouldNotReachHere();                                                       break;
@@ -1558,7 +1560,9 @@
     case Interpreter::java_lang_math_abs     : // fall thru
     case Interpreter::java_lang_math_log     : // fall thru
     case Interpreter::java_lang_math_log10   : // fall thru
-    case Interpreter::java_lang_math_sqrt    :
+    case Interpreter::java_lang_math_sqrt    : // fall thru
+    case Interpreter::java_lang_math_pow     : // fall thru
+    case Interpreter::java_lang_math_exp     :
       return false;
     default:
       return true;
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/x86_32.ad
--- a/src/cpu/x86/vm/x86_32.ad	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/x86_32.ad	Thu Jun 07 12:30:02 2012 -0700
@@ -2536,45 +2536,6 @@
     __ fld_d(Address(rsp, 0));
   %}
 
-  // Compute X^Y using Intel's fast hardware instructions, if possible.
-  // Otherwise return a NaN.
-  enc_class pow_exp_core_encoding %{
-    // FPR1 holds Y*ln2(X).  Compute FPR1 = 2^(Y*ln2(X))
-    emit_opcode(cbuf,0xD9); emit_opcode(cbuf,0xC0);  // fdup = fld st(0)          Q       Q
-    emit_opcode(cbuf,0xD9); emit_opcode(cbuf,0xFC);  // frndint               int(Q)      Q
-    emit_opcode(cbuf,0xDC); emit_opcode(cbuf,0xE9);  // fsub st(1) -= st(0);  int(Q) frac(Q)
-    emit_opcode(cbuf,0xDB);                          // FISTP [ESP]           frac(Q)
-    emit_opcode(cbuf,0x1C);
-    emit_d8(cbuf,0x24);
-    emit_opcode(cbuf,0xD9); emit_opcode(cbuf,0xF0);  // f2xm1                 2^frac(Q)-1
-    emit_opcode(cbuf,0xD9); emit_opcode(cbuf,0xE8);  // fld1                  1 2^frac(Q)-1
-    emit_opcode(cbuf,0xDE); emit_opcode(cbuf,0xC1);  // faddp                 2^frac(Q)
-    emit_opcode(cbuf,0x8B);                          // mov rax,[esp+0]=int(Q)
-    encode_RegMem(cbuf, EAX_enc, ESP_enc, 0x4, 0, 0, false);
-    emit_opcode(cbuf,0xC7);                          // mov rcx,0xFFFFF800 - overflow mask
-    emit_rm(cbuf, 0x3, 0x0, ECX_enc);
-    emit_d32(cbuf,0xFFFFF800);
-    emit_opcode(cbuf,0x81);                          // add rax,1023 - the double exponent bias
-    emit_rm(cbuf, 0x3, 0x0, EAX_enc);
-    emit_d32(cbuf,1023);
-    emit_opcode(cbuf,0x8B);                          // mov rbx,eax
-    emit_rm(cbuf, 0x3, EBX_enc, EAX_enc);
-    emit_opcode(cbuf,0xC1);                          // shl rax,20 - Slide to exponent position
-    emit_rm(cbuf,0x3,0x4,EAX_enc);
-    emit_d8(cbuf,20);
-    emit_opcode(cbuf,0x85);                          // test rbx,ecx - check for overflow
-    emit_rm(cbuf, 0x3, EBX_enc, ECX_enc);
-    emit_opcode(cbuf,0x0F); emit_opcode(cbuf,0x45);  // CMOVne rax,ecx - overflow; stuff NAN into EAX
-    emit_rm(cbuf, 0x3, EAX_enc, ECX_enc);
-    emit_opcode(cbuf,0x89);                          // mov [esp+4],eax - Store as part of double word
-    encode_RegMem(cbuf, EAX_enc, ESP_enc, 0x4, 0, 4, false);
-    emit_opcode(cbuf,0xC7);                          // mov [esp+0],0   - [ESP] = (double)(1<<int(Q)) = 2^int(Q)
-    encode_RegMem(cbuf, 0x0, ESP_enc, 0x4, 0, 0, false);
-    emit_d32(cbuf,0);
-    emit_opcode(cbuf,0xDC);                          // fmul dword st(0),[esp+0]; FPR1 = 2^int(Q)*2^frac(Q) = 2^Q
-    encode_RegMem(cbuf, 0x1, ESP_enc, 0x4, 0, 0, false);
-  %}
-
   enc_class Push_Result_Mod_DPR( regDPR src) %{
     if ($src$$reg != FPR1L_enc) {
       // fincstp
@@ -10100,161 +10061,67 @@
   ins_pipe( pipe_slow );
 %}
 
-instruct powDPR_reg(regDPR X, regDPR1 Y, eAXRegI rax, eBXRegI rbx, eCXRegI rcx) %{
+instruct powDPR_reg(regDPR X, regDPR1 Y, eAXRegI rax, eDXRegI rdx, eCXRegI rcx, eFlagsReg cr) %{
   predicate (UseSSE<=1);
   match(Set Y (PowD X Y));  // Raise X to the Yth power
-  effect(KILL rax, KILL rbx, KILL rcx);
-  format %{ "SUB    ESP,8\t\t# Fast-path POW encoding\n\t"
-            "FLD_D  $X\n\t"
-            "FYL2X  \t\t\t# Q=Y*ln2(X)\n\t"
-
-            "FDUP   \t\t\t# Q Q\n\t"
-            "FRNDINT\t\t\t# int(Q) Q\n\t"
-            "FSUB   ST(1),ST(0)\t# int(Q) frac(Q)\n\t"
-            "FISTP  dword [ESP]\n\t"
-            "F2XM1  \t\t\t# 2^frac(Q)-1 int(Q)\n\t"
-            "FLD1   \t\t\t# 1 2^frac(Q)-1 int(Q)\n\t"
-            "FADDP  \t\t\t# 2^frac(Q) int(Q)\n\t" // could use FADD [1.000] instead
-            "MOV    EAX,[ESP]\t# Pick up int(Q)\n\t"
-            "MOV    ECX,0xFFFFF800\t# Overflow mask\n\t"
-            "ADD    EAX,1023\t\t# Double exponent bias\n\t"
-            "MOV    EBX,EAX\t\t# Preshifted biased expo\n\t"
-            "SHL    EAX,20\t\t# Shift exponent into place\n\t"
-            "TEST   EBX,ECX\t\t# Check for overflow\n\t"
-            "CMOVne EAX,ECX\t\t# If overflow, stuff NaN into EAX\n\t"
-            "MOV    [ESP+4],EAX\t# Marshal 64-bit scaling double\n\t"
-            "MOV    [ESP+0],0\n\t"
-            "FMUL   ST(0),[ESP+0]\t# Scale\n\t"
-
-            "ADD    ESP,8"
-             %}
-  ins_encode( push_stack_temp_qword,
-              Push_Reg_DPR(X),
-              Opcode(0xD9), Opcode(0xF1),   // fyl2x
-              pow_exp_core_encoding,
-              pop_stack_temp_qword);
-  ins_pipe( pipe_slow );
-%}
-
-instruct powD_reg(regD dst, regD src0, regD src1, regDPR1 tmp1, eAXRegI rax, eBXRegI rbx, eCXRegI rcx ) %{
+  effect(KILL rax, KILL rdx, KILL rcx, KILL cr);
+  format %{ "fast_pow $X $Y -> $Y  // KILL $rax, $rcx, $rdx" %}
+  ins_encode %{
+    __ subptr(rsp, 8);
+    __ fld_s($X$$reg - 1);
+    __ fast_pow();
+    __ addptr(rsp, 8);
+  %}
+  ins_pipe( pipe_slow );
+%}
+
+instruct powD_reg(regD dst, regD src0, regD src1, eAXRegI rax, eDXRegI rdx, eCXRegI rcx, eFlagsReg cr) %{
   predicate (UseSSE>=2);
   match(Set dst (PowD src0 src1));  // Raise src0 to the src1'th power
-  effect(KILL tmp1, KILL rax, KILL rbx, KILL rcx );
-  format %{ "SUB    ESP,8\t\t# Fast-path POW encoding\n\t"
-            "MOVSD  [ESP],$src1\n\t"
-            "FLD    FPR1,$src1\n\t"
-            "MOVSD  [ESP],$src0\n\t"
-            "FLD    FPR1,$src0\n\t"
-            "FYL2X  \t\t\t# Q=Y*ln2(X)\n\t"
-
-            "FDUP   \t\t\t# Q Q\n\t"
-            "FRNDINT\t\t\t# int(Q) Q\n\t"
-            "FSUB   ST(1),ST(0)\t# int(Q) frac(Q)\n\t"
-            "FISTP  dword [ESP]\n\t"
-            "F2XM1  \t\t\t# 2^frac(Q)-1 int(Q)\n\t"
-            "FLD1   \t\t\t# 1 2^frac(Q)-1 int(Q)\n\t"
-            "FADDP  \t\t\t# 2^frac(Q) int(Q)\n\t" // could use FADD [1.000] instead
-            "MOV    EAX,[ESP]\t# Pick up int(Q)\n\t"
-            "MOV    ECX,0xFFFFF800\t# Overflow mask\n\t"
-            "ADD    EAX,1023\t\t# Double exponent bias\n\t"
-            "MOV    EBX,EAX\t\t# Preshifted biased expo\n\t"
-            "SHL    EAX,20\t\t# Shift exponent into place\n\t"
-            "TEST   EBX,ECX\t\t# Check for overflow\n\t"
-            "CMOVne EAX,ECX\t\t# If overflow, stuff NaN into EAX\n\t"
-            "MOV    [ESP+4],EAX\t# Marshal 64-bit scaling double\n\t"
-            "MOV    [ESP+0],0\n\t"
-            "FMUL   ST(0),[ESP+0]\t# Scale\n\t"
-
-            "FST_D  [ESP]\n\t"
-            "MOVSD  $dst,[ESP]\n\t"
-            "ADD    ESP,8"
-             %}
-  ins_encode( push_stack_temp_qword,
-              push_xmm_to_fpr1(src1),
-              push_xmm_to_fpr1(src0),
-              Opcode(0xD9), Opcode(0xF1),   // fyl2x
-              pow_exp_core_encoding,
-              Push_ResultD(dst) );
-  ins_pipe( pipe_slow );
-%}
-
-
-instruct expDPR_reg(regDPR1 dpr1, eAXRegI rax, eBXRegI rbx, eCXRegI rcx) %{
+  effect(KILL rax, KILL rdx, KILL rcx, KILL cr);
+  format %{ "fast_pow $src0 $src1 -> $dst  // KILL $rax, $rcx, $rdx" %}
+  ins_encode %{
+    __ subptr(rsp, 8);
+    __ movdbl(Address(rsp, 0), $src1$$XMMRegister);
+    __ fld_d(Address(rsp, 0));
+    __ movdbl(Address(rsp, 0), $src0$$XMMRegister);
+    __ fld_d(Address(rsp, 0));
+    __ fast_pow();
+    __ fstp_d(Address(rsp, 0));
+    __ movdbl($dst$$XMMRegister, Address(rsp, 0));
+    __ addptr(rsp, 8);
+  %}
+  ins_pipe( pipe_slow );
+%}
+
+
+instruct expDPR_reg(regDPR1 dpr1, eAXRegI rax, eDXRegI rdx, eCXRegI rcx, eFlagsReg cr) %{
   predicate (UseSSE<=1);
   match(Set dpr1 (ExpD dpr1));
-  effect(KILL rax, KILL rbx, KILL rcx);
-  format %{ "SUB    ESP,8\t\t# Fast-path EXP encoding"
-            "FLDL2E \t\t\t# Ld log2(e) X\n\t"
-            "FMULP  \t\t\t# Q=X*log2(e)\n\t"
-
-            "FDUP   \t\t\t# Q Q\n\t"
-            "FRNDINT\t\t\t# int(Q) Q\n\t"
-            "FSUB   ST(1),ST(0)\t# int(Q) frac(Q)\n\t"
-            "FISTP  dword [ESP]\n\t"
-            "F2XM1  \t\t\t# 2^frac(Q)-1 int(Q)\n\t"
-            "FLD1   \t\t\t# 1 2^frac(Q)-1 int(Q)\n\t"
-            "FADDP  \t\t\t# 2^frac(Q) int(Q)\n\t" // could use FADD [1.000] instead
-            "MOV    EAX,[ESP]\t# Pick up int(Q)\n\t"
-            "MOV    ECX,0xFFFFF800\t# Overflow mask\n\t"
-            "ADD    EAX,1023\t\t# Double exponent bias\n\t"
-            "MOV    EBX,EAX\t\t# Preshifted biased expo\n\t"
-            "SHL    EAX,20\t\t# Shift exponent into place\n\t"
-            "TEST   EBX,ECX\t\t# Check for overflow\n\t"
-            "CMOVne EAX,ECX\t\t# If overflow, stuff NaN into EAX\n\t"
-            "MOV    [ESP+4],EAX\t# Marshal 64-bit scaling double\n\t"
-            "MOV    [ESP+0],0\n\t"
-            "FMUL   ST(0),[ESP+0]\t# Scale\n\t"
-
-            "ADD    ESP,8"
-             %}
-  ins_encode( push_stack_temp_qword,
-              Opcode(0xD9), Opcode(0xEA),   // fldl2e
-              Opcode(0xDE), Opcode(0xC9),   // fmulp
-              pow_exp_core_encoding,
-              pop_stack_temp_qword);
-  ins_pipe( pipe_slow );
-%}
-
-instruct expD_reg(regD dst, regD src, regDPR1 tmp1, eAXRegI rax, eBXRegI rbx, eCXRegI rcx) %{
+  effect(KILL rax, KILL rcx, KILL rdx, KILL cr);
+  format %{ "fast_exp $dpr1 -> $dpr1  // KILL $rax, $rcx, $rdx" %}
+  ins_encode %{
+    __ fast_exp();
+  %}
+  ins_pipe( pipe_slow );
+%}
+
+instruct expD_reg(regD dst, regD src, eAXRegI rax, eDXRegI rdx, eCXRegI rcx, eFlagsReg cr) %{
   predicate (UseSSE>=2);
   match(Set dst (ExpD src));
-  effect(KILL tmp1, KILL rax, KILL rbx, KILL rcx);
-  format %{ "SUB    ESP,8\t\t# Fast-path EXP encoding\n\t"
-            "MOVSD  [ESP],$src\n\t"
-            "FLDL2E \t\t\t# Ld log2(e) X\n\t"
-            "FMULP  \t\t\t# Q=X*log2(e) X\n\t"
-
-            "FDUP   \t\t\t# Q Q\n\t"
-            "FRNDINT\t\t\t# int(Q) Q\n\t"
-            "FSUB   ST(1),ST(0)\t# int(Q) frac(Q)\n\t"
-            "FISTP  dword [ESP]\n\t"
-            "F2XM1  \t\t\t# 2^frac(Q)-1 int(Q)\n\t"
-            "FLD1   \t\t\t# 1 2^frac(Q)-1 int(Q)\n\t"
-            "FADDP  \t\t\t# 2^frac(Q) int(Q)\n\t" // could use FADD [1.000] instead
-            "MOV    EAX,[ESP]\t# Pick up int(Q)\n\t"
-            "MOV    ECX,0xFFFFF800\t# Overflow mask\n\t"
-            "ADD    EAX,1023\t\t# Double exponent bias\n\t"
-            "MOV    EBX,EAX\t\t# Preshifted biased expo\n\t"
-            "SHL    EAX,20\t\t# Shift exponent into place\n\t"
-            "TEST   EBX,ECX\t\t# Check for overflow\n\t"
-            "CMOVne EAX,ECX\t\t# If overflow, stuff NaN into EAX\n\t"
-            "MOV    [ESP+4],EAX\t# Marshal 64-bit scaling double\n\t"
-            "MOV    [ESP+0],0\n\t"
-            "FMUL   ST(0),[ESP+0]\t# Scale\n\t"
-
-            "FST_D  [ESP]\n\t"
-            "MOVSD  $dst,[ESP]\n\t"
-            "ADD    ESP,8"
-             %}
-  ins_encode( Push_SrcD(src),
-              Opcode(0xD9), Opcode(0xEA),   // fldl2e
-              Opcode(0xDE), Opcode(0xC9),   // fmulp
-              pow_exp_core_encoding,
-              Push_ResultD(dst) );
-  ins_pipe( pipe_slow );
-%}
-
-
+  effect(KILL rax, KILL rcx, KILL rdx, KILL cr);
+  format %{ "fast_exp $dst -> $src  // KILL $rax, $rcx, $rdx" %}
+  ins_encode %{
+    __ subptr(rsp, 8);
+    __ movdbl(Address(rsp, 0), $src$$XMMRegister);
+    __ fld_d(Address(rsp, 0));
+    __ fast_exp();
+    __ fstp_d(Address(rsp, 0));
+    __ movdbl($dst$$XMMRegister, Address(rsp, 0));
+    __ addptr(rsp, 8);
+  %}
+  ins_pipe( pipe_slow );
+%}
 
 instruct log10DPR_reg(regDPR1 dst, regDPR1 src) %{
   predicate (UseSSE<=1);
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/x86/vm/x86_64.ad
--- a/src/cpu/x86/vm/x86_64.ad	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/x86/vm/x86_64.ad	Thu Jun 07 12:30:02 2012 -0700
@@ -9823,7 +9823,39 @@
   ins_pipe( pipe_slow );
 %}
 
-
+instruct powD_reg(regD dst, regD src0, regD src1, rax_RegI rax, rdx_RegI rdx, rcx_RegI rcx, rFlagsReg cr) %{
+  match(Set dst (PowD src0 src1));  // Raise src0 to the src1'th power
+  effect(KILL rax, KILL rdx, KILL rcx, KILL cr);
+  format %{ "fast_pow $src0 $src1 -> $dst  // KILL $rax, $rcx, $rdx" %}
+  ins_encode %{
+    __ subptr(rsp, 8);
+    __ movdbl(Address(rsp, 0), $src1$$XMMRegister);
+    __ fld_d(Address(rsp, 0));
+    __ movdbl(Address(rsp, 0), $src0$$XMMRegister);
+    __ fld_d(Address(rsp, 0));
+    __ fast_pow();
+    __ fstp_d(Address(rsp, 0));
+    __ movdbl($dst$$XMMRegister, Address(rsp, 0));
+    __ addptr(rsp, 8);
+  %}
+  ins_pipe( pipe_slow );
+%}
+
+instruct expD_reg(regD dst, regD src, rax_RegI rax, rdx_RegI rdx, rcx_RegI rcx, rFlagsReg cr) %{
+  match(Set dst (ExpD src));
+  effect(KILL rax, KILL rcx, KILL rdx, KILL cr);
+  format %{ "fast_exp $dst -> $src  // KILL $rax, $rcx, $rdx" %}
+  ins_encode %{
+    __ subptr(rsp, 8);
+    __ movdbl(Address(rsp, 0), $src$$XMMRegister);
+    __ fld_d(Address(rsp, 0));
+    __ fast_exp();
+    __ fstp_d(Address(rsp, 0));
+    __ movdbl($dst$$XMMRegister, Address(rsp, 0));
+    __ addptr(rsp, 8);
+  %}
+  ins_pipe( pipe_slow );
+%}
 
 //----------Arithmetic Conversion Instructions---------------------------------
 
diff -r 84e198dc2474 -r f9d57285de70 src/cpu/zero/vm/cppInterpreter_zero.cpp
--- a/src/cpu/zero/vm/cppInterpreter_zero.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/cpu/zero/vm/cppInterpreter_zero.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1026,6 +1026,16 @@
         java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle);
       oop arg = VMSLOTS_OBJECT(arg_slot);
       jvalue arg_value;
+      if (arg == NULL) {
+        // queue a nullpointer exception for the caller
+        stack->set_sp(calculate_unwind_sp(stack, method_handle));
+        CALL_VM_NOCHECK_NOFIX(
+          throw_exception(
+            thread, vmSymbols::java_lang_NullPointerException()));
+        // NB all oops trashed!
+        assert(HAS_PENDING_EXCEPTION, "should do");
+        return;
+      }
       BasicType arg_type = java_lang_boxing_object::get_value(arg, &arg_value);
       if (arg_type == T_LONG || arg_type == T_DOUBLE) {
         intptr_t *unwind_sp = calculate_unwind_sp(stack, method_handle);
@@ -1112,6 +1122,15 @@
       case T_SHORT:
         return;
       }
+      // INT results sometimes need narrowing
+    case T_BOOLEAN:
+    case T_CHAR:
+    case T_BYTE:
+    case T_SHORT:
+      switch (src_rtype) {
+      case T_INT:
+        return;
+      }
     }
 
     tty->print_cr("unhandled conversion:");
diff -r 84e198dc2474 -r f9d57285de70 src/os/bsd/vm/osThread_bsd.hpp
--- a/src/os/bsd/vm/osThread_bsd.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os/bsd/vm/osThread_bsd.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -42,26 +42,19 @@
 #ifdef _ALLBSD_SOURCE
 
 #ifdef __APPLE__
-  thread_t  _thread_id;
+  typedef thread_t thread_id_t;
 #else
-  pthread_t _thread_id;
+  typedef pthread_t thread_id_t;
+#endif
+
+#else
+  typedef pid_t thread_id_t;
 #endif
 
   // _pthread_id is the pthread id, which is used by library calls
   // (e.g. pthread_kill).
   pthread_t _pthread_id;
 
-#else
-  // _thread_id is kernel thread id (similar to LWP id on Solaris). Each
-  // thread has a unique thread_id (BsdThreads or NPTL). It can be used
-  // to access /proc.
-  pid_t     _thread_id;
-
-  // _pthread_id is the pthread id, which is used by library calls
-  // (e.g. pthread_kill).
-  pthread_t _pthread_id;
-#endif
-
   sigset_t _caller_sigmask; // Caller's signal mask
 
  public:
@@ -70,28 +63,11 @@
   sigset_t  caller_sigmask() const       { return _caller_sigmask; }
   void    set_caller_sigmask(sigset_t sigmask)  { _caller_sigmask = sigmask; }
 
-#ifdef _ALLBSD_SOURCE
-#ifdef __APPLE__
-  static size_t thread_id_size()         { return sizeof(thread_t); }
-  thread_t thread_id() const {
-    return _thread_id;
-  }
-#else
-  static size_t thread_id_size()         { return sizeof(pthread_t); }
-  pthread_t thread_id() const {
-    return _thread_id;
-  }
-#endif
-#else
-  static size_t thread_id_size()         { return sizeof(pid_t); }
-  pid_t thread_id() const {
-    return _thread_id;
-  }
-#endif
 #ifndef PRODUCT
   // Used for debugging, return a unique integer for each thread.
   intptr_t thread_identifier() const   { return (intptr_t)_pthread_id; }
 #endif
+
 #ifdef ASSERT
   // We expect no reposition failures so kill vm if we get one.
   //
@@ -99,21 +75,7 @@
     return false;
   }
 #endif // ASSERT
-#ifdef _ALLBSD_SOURCE
-#ifdef __APPLE__
-  void set_thread_id(thread_t id) {
-    _thread_id = id;
-  }
-#else
-  void set_thread_id(pthread_t id) {
-    _thread_id = id;
-  }
-#endif
-#else
-  void set_thread_id(pid_t id) {
-    _thread_id = id;
-  }
-#endif
+
   pthread_t pthread_id() const {
     return _pthread_id;
   }
diff -r 84e198dc2474 -r f9d57285de70 src/os/bsd/vm/os_bsd.cpp
--- a/src/os/bsd/vm/os_bsd.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os/bsd/vm/os_bsd.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -2340,93 +2340,21 @@
 #endif
 }
 
+void os::print_os_info_brief(outputStream* st) {
+  st->print("Bsd");
+
+  os::Posix::print_uname_info(st);
+}
 
 void os::print_os_info(outputStream* st) {
   st->print("OS:");
-
-  // Try to identify popular distros.
-  // Most Bsd distributions have /etc/XXX-release file, which contains
-  // the OS version string. Some have more than one /etc/XXX-release file
-  // (e.g. Mandrake has both /etc/mandrake-release and /etc/redhat-release.),
-  // so the order is important.
-  if (!_print_ascii_file("/etc/mandrake-release", st) &&
-      !_print_ascii_file("/etc/sun-release", st) &&
-      !_print_ascii_file("/etc/redhat-release", st) &&
-      !_print_ascii_file("/etc/SuSE-release", st) &&
-      !_print_ascii_file("/etc/turbobsd-release", st) &&
-      !_print_ascii_file("/etc/gentoo-release", st) &&
-      !_print_ascii_file("/etc/debian_version", st) &&
-      !_print_ascii_file("/etc/ltib-release", st) &&
-      !_print_ascii_file("/etc/angstrom-version", st)) {
-      st->print("Bsd");
-  }
-  st->cr();
-
-  // kernel
-  st->print("uname:");
-  struct utsname name;
-  uname(&name);
-  st->print(name.sysname); st->print(" ");
-  st->print(name.release); st->print(" ");
-  st->print(name.version); st->print(" ");
-  st->print(name.machine);
-  st->cr();
-
-#ifndef _ALLBSD_SOURCE
-  // Print warning if unsafe chroot environment detected
-  if (unsafe_chroot_detected) {
-    st->print("WARNING!! ");
-    st->print_cr(unstable_chroot_error);
-  }
-
-  // libc, pthread
-  st->print("libc:");
-  st->print(os::Bsd::glibc_version()); st->print(" ");
-  st->print(os::Bsd::libpthread_version()); st->print(" ");
-  if (os::Bsd::is_BsdThreads()) {
-     st->print("(%s stack)", os::Bsd::is_floating_stack() ? "floating" : "fixed");
-  }
-  st->cr();
-#endif
-
-  // rlimit
-  st->print("rlimit:");
-  struct rlimit rlim;
-
-  st->print(" STACK ");
-  getrlimit(RLIMIT_STACK, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%uk", rlim.rlim_cur >> 10);
-
-  st->print(", CORE ");
-  getrlimit(RLIMIT_CORE, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%uk", rlim.rlim_cur >> 10);
-
-  st->print(", NPROC ");
-  getrlimit(RLIMIT_NPROC, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%d", rlim.rlim_cur);
-
-  st->print(", NOFILE ");
-  getrlimit(RLIMIT_NOFILE, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%d", rlim.rlim_cur);
-
-#ifndef _ALLBSD_SOURCE
-  st->print(", AS ");
-  getrlimit(RLIMIT_AS, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%uk", rlim.rlim_cur >> 10);
-  st->cr();
-
-  // load average
-  st->print("load average:");
-  double loadavg[3];
-  os::loadavg(loadavg, 3);
-  st->print("%0.02f %0.02f %0.02f", loadavg[0], loadavg[1], loadavg[2]);
-  st->cr();
-#endif
+  st->print("Bsd");
+
+  os::Posix::print_uname_info(st);
+
+  os::Posix::print_rlimit_info(st);
+
+  os::Posix::print_load_average(st);
 }
 
 void os::pd_print_cpu_info(outputStream* st) {
diff -r 84e198dc2474 -r f9d57285de70 src/os/linux/vm/osThread_linux.hpp
--- a/src/os/linux/vm/osThread_linux.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os/linux/vm/osThread_linux.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -24,6 +24,8 @@
 
 #ifndef OS_LINUX_VM_OSTHREAD_LINUX_HPP
 #define OS_LINUX_VM_OSTHREAD_LINUX_HPP
+ public:
+  typedef pid_t thread_id_t;
 
  private:
   int _thread_type;
@@ -37,13 +39,6 @@
     _thread_type = type;
   }
 
- private:
-
-  // _thread_id is kernel thread id (similar to LWP id on Solaris). Each
-  // thread has a unique thread_id (LinuxThreads or NPTL). It can be used
-  // to access /proc.
-  pid_t     _thread_id;
-
   // _pthread_id is the pthread id, which is used by library calls
   // (e.g. pthread_kill).
   pthread_t _pthread_id;
@@ -56,11 +51,6 @@
   sigset_t  caller_sigmask() const       { return _caller_sigmask; }
   void    set_caller_sigmask(sigset_t sigmask)  { _caller_sigmask = sigmask; }
 
-  static size_t thread_id_size()         { return sizeof(pid_t); }
-
-  pid_t thread_id() const {
-    return _thread_id;
-  }
 #ifndef PRODUCT
   // Used for debugging, return a unique integer for each thread.
   int thread_identifier() const   { return _thread_id; }
@@ -72,9 +62,6 @@
     return false;
   }
 #endif // ASSERT
-  void set_thread_id(pid_t id) {
-    _thread_id = id;
-  }
   pthread_t pthread_id() const {
     return _pthread_id;
   }
diff -r 84e198dc2474 -r f9d57285de70 src/os/linux/vm/os_linux.cpp
--- a/src/os/linux/vm/os_linux.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os/linux/vm/os_linux.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -2020,15 +2020,43 @@
    }
 }
 
+void os::print_os_info_brief(outputStream* st) {
+  os::Linux::print_distro_info(st);
+
+  os::Posix::print_uname_info(st);
+
+  os::Linux::print_libversion_info(st);
+
+}
 
 void os::print_os_info(outputStream* st) {
   st->print("OS:");
 
-  // Try to identify popular distros.
-  // Most Linux distributions have /etc/XXX-release file, which contains
-  // the OS version string. Some have more than one /etc/XXX-release file
-  // (e.g. Mandrake has both /etc/mandrake-release and /etc/redhat-release.),
-  // so the order is important.
+  os::Linux::print_distro_info(st);
+
+  os::Posix::print_uname_info(st);
+
+  // Print warning if unsafe chroot environment detected
+  if (unsafe_chroot_detected) {
+    st->print("WARNING!! ");
+    st->print_cr(unstable_chroot_error);
+  }
+
+  os::Linux::print_libversion_info(st);
+
+  os::Posix::print_rlimit_info(st);
+
+  os::Posix::print_load_average(st);
+
+  os::Linux::print_full_memory_info(st);
+}
+
+// Try to identify popular distros.
+// Most Linux distributions have /etc/XXX-release file, which contains
+// the OS version string. Some have more than one /etc/XXX-release file
+// (e.g. Mandrake has both /etc/mandrake-release and /etc/redhat-release.),
+// so the order is important.
+void os::Linux::print_distro_info(outputStream* st) {
   if (!_print_ascii_file("/etc/mandrake-release", st) &&
       !_print_ascii_file("/etc/sun-release", st) &&
       !_print_ascii_file("/etc/redhat-release", st) &&
@@ -2041,23 +2069,9 @@
       st->print("Linux");
   }
   st->cr();
-
-  // kernel
-  st->print("uname:");
-  struct utsname name;
-  uname(&name);
-  st->print(name.sysname); st->print(" ");
-  st->print(name.release); st->print(" ");
-  st->print(name.version); st->print(" ");
-  st->print(name.machine);
-  st->cr();
-
-  // Print warning if unsafe chroot environment detected
-  if (unsafe_chroot_detected) {
-    st->print("WARNING!! ");
-    st->print_cr(unstable_chroot_error);
-  }
-
+}
+
+void os::Linux::print_libversion_info(outputStream* st) {
   // libc, pthread
   st->print("libc:");
   st->print(os::Linux::glibc_version()); st->print(" ");
@@ -2066,56 +2080,12 @@
      st->print("(%s stack)", os::Linux::is_floating_stack() ? "floating" : "fixed");
   }
   st->cr();
-
-  // rlimit
-  st->print("rlimit:");
-  struct rlimit rlim;
-
-  st->print(" STACK ");
-  getrlimit(RLIMIT_STACK, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%uk", rlim.rlim_cur >> 10);
-
-  st->print(", CORE ");
-  getrlimit(RLIMIT_CORE, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%uk", rlim.rlim_cur >> 10);
-
-  st->print(", NPROC ");
-  getrlimit(RLIMIT_NPROC, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%d", rlim.rlim_cur);
-
-  st->print(", NOFILE ");
-  getrlimit(RLIMIT_NOFILE, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%d", rlim.rlim_cur);
-
-  st->print(", AS ");
-  getrlimit(RLIMIT_AS, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%uk", rlim.rlim_cur >> 10);
-  st->cr();
-
-  // load average
-  st->print("load average:");
-  double loadavg[3];
-  os::loadavg(loadavg, 3);
-  st->print("%0.02f %0.02f %0.02f", loadavg[0], loadavg[1], loadavg[2]);
-  st->cr();
-
-  // meminfo
-  st->print("\n/proc/meminfo:\n");
-  _print_ascii_file("/proc/meminfo", st);
-  st->cr();
-}
-
-void os::pd_print_cpu_info(outputStream* st) {
-  st->print("\n/proc/cpuinfo:\n");
-  if (!_print_ascii_file("/proc/cpuinfo", st)) {
-    st->print("  <Not Available>");
-  }
-  st->cr();
+}
+
+void os::Linux::print_full_memory_info(outputStream* st) {
+   st->print("\n/proc/meminfo:\n");
+   _print_ascii_file("/proc/meminfo", st);
+   st->cr();
 }
 
 void os::print_memory_info(outputStream* st) {
@@ -2138,6 +2108,14 @@
   st->cr();
 }
 
+void os::pd_print_cpu_info(outputStream* st) {
+  st->print("\n/proc/cpuinfo:\n");
+  if (!_print_ascii_file("/proc/cpuinfo", st)) {
+    st->print("  <Not Available>");
+  }
+  st->cr();
+}
+
 // Taken from /usr/include/bits/siginfo.h  Supposed to be architecture specific
 // but they're the same for all the linux arch that we support
 // and they're the same for solaris but there's no common place to put this.
diff -r 84e198dc2474 -r f9d57285de70 src/os/linux/vm/os_linux.hpp
--- a/src/os/linux/vm/os_linux.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os/linux/vm/os_linux.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -89,6 +89,10 @@
 
   static bool hugetlbfs_sanity_check(bool warn, size_t page_size);
 
+  static void print_full_memory_info(outputStream* st);
+  static void print_distro_info(outputStream* st);
+  static void print_libversion_info(outputStream* st);
+
  public:
   static void init_thread_fpu_state();
   static int  get_fpu_control_word();
diff -r 84e198dc2474 -r f9d57285de70 src/os/posix/vm/os_posix.cpp
--- a/src/os/posix/vm/os_posix.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os/posix/vm/os_posix.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -28,6 +28,8 @@
 
 #include <unistd.h>
 #include <sys/resource.h>
+#include <sys/utsname.h>
+
 
 // Check core dump limit and report possible place where core can be found
 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) {
@@ -72,3 +74,59 @@
   // don't do anything on posix platforms
   return;
 }
+
+void os::Posix::print_load_average(outputStream* st) {
+  st->print("load average:");
+  double loadavg[3];
+  os::loadavg(loadavg, 3);
+  st->print("%0.02f %0.02f %0.02f", loadavg[0], loadavg[1], loadavg[2]);
+  st->cr();
+}
+
+void os::Posix::print_rlimit_info(outputStream* st) {
+  st->print("rlimit:");
+  struct rlimit rlim;
+
+  st->print(" STACK ");
+  getrlimit(RLIMIT_STACK, &rlim);
+  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
+  else st->print("%uk", rlim.rlim_cur >> 10);
+
+  st->print(", CORE ");
+  getrlimit(RLIMIT_CORE, &rlim);
+  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
+  else st->print("%uk", rlim.rlim_cur >> 10);
+
+  //Isn't there on solaris
+#ifndef TARGET_OS_FAMILY_solaris
+  st->print(", NPROC ");
+  getrlimit(RLIMIT_NPROC, &rlim);
+  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
+  else st->print("%d", rlim.rlim_cur);
+#endif
+
+  st->print(", NOFILE ");
+  getrlimit(RLIMIT_NOFILE, &rlim);
+  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
+  else st->print("%d", rlim.rlim_cur);
+
+  st->print(", AS ");
+  getrlimit(RLIMIT_AS, &rlim);
+  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
+  else st->print("%uk", rlim.rlim_cur >> 10);
+  st->cr();
+}
+
+void os::Posix::print_uname_info(outputStream* st) {
+  // kernel
+  st->print("uname:");
+  struct utsname name;
+  uname(&name);
+  st->print(name.sysname); st->print(" ");
+  st->print(name.release); st->print(" ");
+  st->print(name.version); st->print(" ");
+  st->print(name.machine);
+  st->cr();
+}
+
+
diff -r 84e198dc2474 -r f9d57285de70 src/os/posix/vm/os_posix.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/os/posix/vm/os_posix.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_POSIX_VM_OS_POSIX_HPP
+#define OS_POSIX_VM_OS_POSIX_HPP
+class Posix {
+  friend class os;
+
+protected:
+  static void print_distro_info(outputStream* st);
+  static void print_rlimit_info(outputStream* st);
+  static void print_uname_info(outputStream* st);
+  static void print_libversion_info(outputStream* st);
+  static void print_load_average(outputStream* st);
+
+
+};
+
+
+#endif
diff -r 84e198dc2474 -r f9d57285de70 src/os/solaris/add_gnu_debuglink/add_gnu_debuglink.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/os/solaris/add_gnu_debuglink/add_gnu_debuglink.c	Thu Jun 07 12:30:02 2012 -0700
@@ -0,0 +1,285 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+/*
+ * Name:        add_gnu_debuglink.c
+ *
+ * Description: Add a ".gnu_debuglink" section that refers to the specified
+ *     debug_info_path to the specified ELF object.
+ *
+ *     This program is adapted from the example program shown on the
+ *     elf(3elf) man page and from code from the Solaris compiler
+ *     driver.
+ */
+
+/*
+ * needed to define SHF_EXCLUDE
+ */
+#define ELF_TARGET_ALL
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <libelf.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static void failure(void);
+static unsigned int gnu_debuglink_crc32(unsigned int crc, unsigned char *buf,
+                                        size_t len);
+
+void
+main(int argc, char ** argv) {
+                                 /* new ELF section name */
+    static char SEC_NAME[] = ".gnu_debuglink";
+
+    unsigned char buffer[8 * 1024];  /* I/O buffer */
+    int           buffer_len;        /* buffer length */
+    char *        debug_info_path;   /* debug info path */
+    void *        ehdr;              /* ELF header */
+    Elf *         elf;               /* ELF descriptor */
+    char *        elf_ident;         /* ELF identity string */
+    char *        elf_obj;           /* elf_obj file */
+    int           fd;                /* descriptor for files */
+    unsigned int  file_crc = 0;      /* CRC for debug info file */
+    int           is_elfclass64;     /* is an ELFCLASS64 file? */
+    Elf_Data *    link_dat;          /* ELF data for new debug info link */
+    Elf_Data *    name_dat;          /* ELF data for new section name */
+    Elf_Scn *     new_scn;           /* new ELF section descriptor */
+    void *        new_shdr;          /* new ELF section header */
+    Elf_Scn *     scn;               /* ELF section descriptor */
+    void *        shdr;              /* ELF section header */
+
+    if (argc != 3) {
+        (void) fprintf(stderr, "Usage: %s debug_info_path elf_obj\n", argv[0]);
+        exit(2);
+    }
+
+    debug_info_path = argv[1];  /* save for later */
+    if ((fd = open(debug_info_path, O_RDONLY)) == -1) {
+        (void) fprintf(stderr, "%s: cannot open file.\n", debug_info_path);
+        exit(3);
+    }
+
+    (void) printf("Computing CRC for '%s'\n", debug_info_path);
+    (void) fflush(stdout);
+    /* compute CRC for the debug info file */
+    for (;;) {
+        int len = read(fd, buffer, sizeof buffer);
+        if (len <= 0) {
+            break;
+        }
+        file_crc = gnu_debuglink_crc32(file_crc, buffer, len);
+    }
+    (void) close(fd);
+
+    /* open the elf_obj */
+    elf_obj = argv[2];
+    if ((fd = open(elf_obj, O_RDWR)) == -1) {
+        (void) fprintf(stderr, "%s: cannot open file.\n", elf_obj);
+        exit(4);
+    }
+
+    (void) printf("Opening '%s' for update\n", elf_obj);
+    (void) fflush(stdout);
+    (void) elf_version(EV_CURRENT);  /* coordinate ELF versions */
+
+    /* obtain the ELF descriptors from the input file */
+    if ((elf = elf_begin(fd, ELF_C_RDWR, NULL)) == NULL) {
+        failure();
+    }
+
+    /* determine if ELFCLASS64 or not? */
+    elf_ident = elf_getident(elf, NULL);
+    is_elfclass64 = (elf_ident[EI_CLASS] == ELFCLASS64);
+
+    /* get the ELF header */
+    if (is_elfclass64) {
+        ehdr = elf64_getehdr(elf);
+    } else {
+        ehdr = elf32_getehdr(elf);
+    }
+    if (ehdr == NULL) {
+        failure();
+    }
+
+    /* get the ELF section descriptor */
+    if (is_elfclass64) {
+        scn = elf_getscn(elf, ((Elf64_Ehdr *) ehdr)->e_shstrndx);
+    } else {
+        scn = elf_getscn(elf, ((Elf32_Ehdr *) ehdr)->e_shstrndx);
+    }
+    if (scn == NULL) {
+        failure();
+    }
+
+    /* get the section header */
+    if (is_elfclass64) {
+        shdr = elf64_getshdr(scn);
+    } else {
+        shdr = elf32_getshdr(scn);
+    }
+    if (shdr == NULL) {
+        failure();
+    }
+
+    (void) printf("Adding ELF data for new section name\n");
+    (void) fflush(stdout);
+    name_dat = elf_newdata(scn);
+    name_dat->d_buf = (void *) SEC_NAME;
+    if (is_elfclass64) {
+        name_dat->d_off = ((Elf64_Shdr *) shdr)->sh_size + 1;
+    } else {
+        name_dat->d_off = ((Elf32_Shdr *) shdr)->sh_size + 1;
+    }
+    name_dat->d_align = 1;
+    name_dat->d_size = strlen(SEC_NAME) + 1;
+
+    new_scn = elf_newscn(elf);
+
+    if (is_elfclass64) {
+        new_shdr = elf64_getshdr(new_scn);
+        ((Elf64_Shdr *) new_shdr)->sh_flags = SHF_EXCLUDE;
+        ((Elf64_Shdr *) new_shdr)->sh_type = SHT_PROGBITS;
+        ((Elf64_Shdr *) new_shdr)->sh_name = ((Elf64_Shdr *) shdr)->sh_size;
+        ((Elf64_Shdr *) new_shdr)->sh_addralign = 1;
+        ((Elf64_Shdr *) shdr)->sh_size += (strlen(SEC_NAME) + 1);
+    } else {
+        new_shdr = elf32_getshdr(new_scn);
+        ((Elf32_Shdr *) new_shdr)->sh_flags = SHF_EXCLUDE;
+        ((Elf32_Shdr *) new_shdr)->sh_type = SHT_PROGBITS;
+        ((Elf32_Shdr *) new_shdr)->sh_name = ((Elf32_Shdr *) shdr)->sh_size;
+        ((Elf32_Shdr *) new_shdr)->sh_addralign = 1;
+        ((Elf32_Shdr *) shdr)->sh_size += (strlen(SEC_NAME) + 1);
+    }
+
+    (void) printf("Adding ELF data for debug_info_path value\n");
+    (void) fflush(stdout);
+    (void) memset(buffer, 0, sizeof buffer);
+    buffer_len = strlen(debug_info_path) + 1;  /* +1 for NUL */
+    (void) strncpy((char *) buffer, debug_info_path, buffer_len);
+    if (buffer_len % 4 != 0) {
+        /* not on a 4 byte boundary so pad to the next one */
+        buffer_len += (4 - buffer_len % 4);
+    }
+    /* save the CRC */
+    (void) memcpy(&buffer[buffer_len], &file_crc, sizeof file_crc);
+    buffer_len += sizeof file_crc;
+
+    link_dat = elf_newdata(new_scn);
+    link_dat->d_type = ELF_T_BYTE;
+    link_dat->d_size = buffer_len;
+    link_dat->d_buf = buffer;
+    link_dat->d_align = 1;
+
+    (void) printf("Saving updates to '%s'\n", elf_obj);
+    (void) fflush(stdout);
+    (void) elf_update(elf, ELF_C_NULL);   /* recalc ELF memory structures */
+    (void) elf_update(elf, ELF_C_WRITE);  /* write out changes to ELF obj */
+    (void) elf_end(elf);                  /* done with ELF obj */
+    (void) close(fd);
+
+    (void) printf("Done updating '%s'\n", elf_obj);
+    (void) fflush(stdout);
+    exit(0);
+}  /* end main */
+
+
+static void
+failure() {
+    (void) fprintf(stderr, "%s\n", elf_errmsg(elf_errno()));
+    exit(5);
+}
+
+
+/*
+ * The CRC used in gnu_debuglink, retrieved from
+ * http://sourceware.org/gdb/current/onlinedocs/gdb/Separate-Debug-Files.html#Separate-Debug-Files.
+ */
+
+static unsigned int
+gnu_debuglink_crc32(unsigned int crc, unsigned char *buf, size_t len) {
+    static const unsigned int crc32_table[256] = {
+        0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
+        0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
+        0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
+        0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
+        0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
+        0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+        0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
+        0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
+        0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
+        0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
+        0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
+        0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+        0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
+        0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
+        0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
+        0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
+        0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
+        0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+        0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
+        0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
+        0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
+        0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
+        0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
+        0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+        0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
+        0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
+        0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
+        0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
+        0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
+        0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+        0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
+        0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
+        0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
+        0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
+        0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
+        0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+        0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
+        0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
+        0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
+        0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
+        0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
+        0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+        0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
+        0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
+        0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
+        0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
+        0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
+        0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+        0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
+        0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
+        0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
+        0x2d02ef8d
+    };
+
+    unsigned char *end;
+
+    crc = ~crc & 0xffffffff;
+    for (end = buf + len; buf < end; ++buf) {
+        crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8);
+    }
+    return ~crc & 0xffffffff;
+}
diff -r 84e198dc2474 -r f9d57285de70 src/os/solaris/fix_empty_sec_hdr_flags/fix_empty_sec_hdr_flags.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/os/solaris/fix_empty_sec_hdr_flags/fix_empty_sec_hdr_flags.c	Thu Jun 07 12:30:02 2012 -0700
@@ -0,0 +1,181 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+/*
+ * Name:        fix_empty_sec_hdr_flags.c
+ *
+ * Description: Remove the SHF_ALLOC flag from "empty" section headers.
+ *     An "empty" section header has sh_addr == 0 and sh_size == 0.
+ *
+ *     This program is adapted from the example program shown on the
+ *     elf(3elf) man page and from code from the Solaris compiler
+ *     driver.
+ */
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <libelf.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static void failure(void);
+
+void
+main(int argc, char ** argv) {
+    void *        ehdr;           /* ELF header */
+    unsigned int  i;              /* section counter */
+    int           fd;             /* descriptor for file */
+    Elf *         elf;            /* ELF descriptor */
+    char *        elf_ident;      /* ELF identity string */
+    char *        elf_obj;        /* elf_obj file */
+    int           fix_count;      /* number of flags fixed */
+    int           is_elfclass64;  /* is an ELFCLASS64 file? */
+    Elf_Scn *     scn;            /* ELF section descriptor */
+    void *        shdr;           /* ELF section header */
+    Elf_Data *    shstrtab;       /* ELF section header string table */
+
+    if (argc != 2) {
+        (void) fprintf(stderr, "Usage: %s elf_obj\n", argv[0]);
+        exit(2);
+    }
+
+    /* open the elf_obj */
+    elf_obj = argv[1];
+    if ((fd = open(elf_obj, O_RDWR)) == -1) {
+        (void) fprintf(stderr, "%s: cannot open file.\n", elf_obj);
+        exit(3);
+    }
+
+    (void) printf("Opening '%s' for update\n", elf_obj);
+    (void) fflush(stdout);
+    (void) elf_version(EV_CURRENT);  /* coordinate ELF versions */
+
+    /* obtain the ELF descriptors from the input file */
+    if ((elf = elf_begin(fd, ELF_C_RDWR, NULL)) == NULL) {
+        failure();
+    }
+
+    /* determine if ELFCLASS64 or not? */
+    elf_ident = elf_getident(elf, NULL);
+    is_elfclass64 = (elf_ident[EI_CLASS] == ELFCLASS64);
+
+    /* get the ELF header */
+    if (is_elfclass64) {
+        ehdr = elf64_getehdr(elf);
+    } else {
+        ehdr = elf32_getehdr(elf);
+    }
+    if (ehdr == NULL) {
+        failure();
+    }
+
+    /* get the ELF section descriptor */
+    if (is_elfclass64) {
+        scn = elf_getscn(elf, ((Elf64_Ehdr *) ehdr)->e_shstrndx);
+    } else {
+        scn = elf_getscn(elf, ((Elf32_Ehdr *) ehdr)->e_shstrndx);
+    }
+    if (scn == NULL) {
+        failure();
+    }
+
+    /* get the section header string table */
+    shstrtab = elf_getdata(scn, NULL);
+    if (shstrtab == NULL) {
+        failure();
+    }
+
+    fix_count = 0;
+
+    /* traverse the sections of the input file */
+    for (i = 1, scn = NULL; scn = elf_nextscn(elf, scn); i++) {
+        int    has_flag_set;  /* is SHF_ALLOC flag set? */
+        int    is_empty;      /* is section empty? */
+        char * name;          /* short hand pointer */
+
+        /* get the section header */
+        if (is_elfclass64) {
+            shdr = elf64_getshdr(scn);
+        } else {
+            shdr = elf32_getshdr(scn);
+        }
+        if (shdr == NULL) {
+            failure();
+        }
+
+        if (is_elfclass64) {
+            name = (char *)shstrtab->d_buf + ((Elf64_Shdr *) shdr)->sh_name;
+        } else {
+            name = (char *)shstrtab->d_buf + ((Elf32_Shdr *) shdr)->sh_name;
+        }
+
+        if (is_elfclass64) {
+            has_flag_set = ((Elf64_Shdr *) shdr)->sh_flags & SHF_ALLOC;
+            is_empty = ((Elf64_Shdr *) shdr)->sh_addr == 0 &&
+                ((Elf64_Shdr *) shdr)->sh_size == 0;
+        } else {
+            has_flag_set = ((Elf32_Shdr *) shdr)->sh_flags & SHF_ALLOC;
+            is_empty = ((Elf32_Shdr *) shdr)->sh_addr == 0 &&
+                ((Elf32_Shdr *) shdr)->sh_size == 0;
+        }
+
+        if (is_empty && has_flag_set) {
+            (void) printf("section[%u] '%s' is empty, "
+                "but SHF_ALLOC flag is set.\n", i, name);
+            (void) printf("Clearing the SHF_ALLOC flag.\n");
+
+            if (is_elfclass64) {
+                ((Elf64_Shdr *) shdr)->sh_flags &= ~SHF_ALLOC;
+            } else {
+                ((Elf32_Shdr *) shdr)->sh_flags &= ~SHF_ALLOC;
+            }
+            fix_count++;
+        }
+    }  /* end for each ELF section */
+
+    if (fix_count > 0) {
+        (void) printf("Saving %d updates to '%s'\n", fix_count, elf_obj);
+        (void) fflush(stdout);
+        (void) elf_update(elf, ELF_C_NULL);   /* recalc ELF memory structures */
+        (void) elf_update(elf, ELF_C_WRITE);  /* write out changes to ELF obj */
+    } else {
+        (void) printf("No SHF_ALLOC flags needed to be cleared.\n");
+    }
+
+    (void) elf_end(elf);                  /* done with ELF obj */
+    (void) close(fd);
+
+    (void) printf("Done %s '%s'\n",
+               (fix_count > 0) ? "updating" : "with", elf_obj);
+    (void) fflush(stdout);
+    exit(0);
+}  /* end main */
+
+
+static void
+failure() {
+    (void) fprintf(stderr, "%s\n", elf_errmsg(elf_errno()));
+    exit(6);
+}
diff -r 84e198dc2474 -r f9d57285de70 src/os/solaris/vm/osThread_solaris.hpp
--- a/src/os/solaris/vm/osThread_solaris.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os/solaris/vm/osThread_solaris.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -26,9 +26,10 @@
 #define OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP
 
 // This is embedded via include into the class OSThread
+ public:
+  typedef thread_t thread_id_t;
 
  private:
-  thread_t _thread_id;         // Solaris thread id
   uint     _lwp_id;            // lwp ID, only used with bound threads
   int      _native_priority;   // Saved native priority when starting
                                // a bound thread
@@ -36,8 +37,6 @@
   bool     _vm_created_thread; // true if the VM created this thread,
                                // false if primary thread or attached thread
  public:
-  static size_t thread_id_size()   { return sizeof(thread_t); }
-  thread_t thread_id() const       { return _thread_id; }
   uint     lwp_id() const          { return _lwp_id; }
   int      native_priority() const { return _native_priority; }
 
@@ -63,7 +62,6 @@
     return true;
   }
 #endif
-  void set_thread_id(thread_t id)    { _thread_id = id; }
   void set_lwp_id(uint id)           { _lwp_id = id; }
   void set_native_priority(int prio) { _native_priority = prio; }
 
diff -r 84e198dc2474 -r f9d57285de70 src/os/solaris/vm/os_solaris.cpp
--- a/src/os/solaris/vm/os_solaris.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os/solaris/vm/os_solaris.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -2242,61 +2242,44 @@
   return true;
 }
 
+void os::print_os_info_brief(outputStream* st) {
+  os::Solaris::print_distro_info(st);
+
+  os::Posix::print_uname_info(st);
+
+  os::Solaris::print_libversion_info(st);
+}
+
 void os::print_os_info(outputStream* st) {
   st->print("OS:");
 
+  os::Solaris::print_distro_info(st);
+
+  os::Posix::print_uname_info(st);
+
+  os::Solaris::print_libversion_info(st);
+
+  os::Posix::print_rlimit_info(st);
+
+  os::Posix::print_load_average(st);
+}
+
+void os::Solaris::print_distro_info(outputStream* st) {
   if (!_print_ascii_file("/etc/release", st)) {
-    st->print("Solaris");
+      st->print("Solaris");
+    }
+    st->cr();
+}
+
+void os::Solaris::print_libversion_info(outputStream* st) {
+  if (os::Solaris::T2_libthread()) {
+    st->print("  (T2 libthread)");
+  }
+  else {
+    st->print("  (T1 libthread)");
   }
   st->cr();
-
-  // kernel
-  st->print("uname:");
-  struct utsname name;
-  uname(&name);
-  st->print(name.sysname); st->print(" ");
-  st->print(name.release); st->print(" ");
-  st->print(name.version); st->print(" ");
-  st->print(name.machine);
-
-  // libthread
-  if (os::Solaris::T2_libthread()) st->print("  (T2 libthread)");
-  else st->print("  (T1 libthread)");
-  st->cr();
-
-  // rlimit
-  st->print("rlimit:");
-  struct rlimit rlim;
-
-  st->print(" STACK ");
-  getrlimit(RLIMIT_STACK, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%uk", rlim.rlim_cur >> 10);
-
-  st->print(", CORE ");
-  getrlimit(RLIMIT_CORE, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%uk", rlim.rlim_cur >> 10);
-
-  st->print(", NOFILE ");
-  getrlimit(RLIMIT_NOFILE, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%d", rlim.rlim_cur);
-
-  st->print(", AS ");
-  getrlimit(RLIMIT_AS, &rlim);
-  if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
-  else st->print("%uk", rlim.rlim_cur >> 10);
-  st->cr();
-
-  // load average
-  st->print("load average:");
-  double loadavg[3];
-  os::loadavg(loadavg, 3);
-  st->print("%0.02f %0.02f %0.02f", loadavg[0], loadavg[1], loadavg[2]);
-  st->cr();
-}
-
+}
 
 static bool check_addr0(outputStream* st) {
   jboolean status = false;
diff -r 84e198dc2474 -r f9d57285de70 src/os/solaris/vm/os_solaris.hpp
--- a/src/os/solaris/vm/os_solaris.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os/solaris/vm/os_solaris.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -180,6 +180,9 @@
   // proc_t structure (note that this is a system struct).
   static address _main_stack_base;
 
+  static void print_distro_info(outputStream* st);
+  static void print_libversion_info(outputStream* st);
+
  public:
   static void libthread_init();
   static void synchronization_init();
diff -r 84e198dc2474 -r f9d57285de70 src/os/windows/vm/osThread_windows.hpp
--- a/src/os/windows/vm/osThread_windows.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os/windows/vm/osThread_windows.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -25,12 +25,13 @@
 #ifndef OS_WINDOWS_VM_OSTHREAD_WINDOWS_HPP
 #define OS_WINDOWS_VM_OSTHREAD_WINDOWS_HPP
 
-typedef void* HANDLE;
+  typedef void* HANDLE;
+ public:
+  typedef unsigned long thread_id_t;
 
  private:
   // Win32-specific thread information
   HANDLE _thread_handle;        // Win32 thread handle
-  unsigned long _thread_id;     // Win32 thread id
   HANDLE _interrupt_event;      // Event signalled on thread interrupt
   ThreadState _last_state;
 
@@ -42,9 +43,6 @@
   HANDLE interrupt_event() const                   { return _interrupt_event; }
   void set_interrupt_event(HANDLE interrupt_event) { _interrupt_event = interrupt_event; }
 
-
-  static size_t thread_id_size()                   { return sizeof(unsigned long); }
-  unsigned long thread_id() const                  { return _thread_id; }
 #ifndef PRODUCT
   // Used for debugging, return a unique integer for each thread.
   int thread_identifier() const                    { return _thread_id; }
@@ -56,8 +54,6 @@
     return false;
   }
 #endif // ASSERT
-  void set_thread_id(unsigned long thread_id)      { _thread_id = thread_id; }
-
   bool is_try_mutex_enter()                        { return false; }
 
   // This is a temporary fix for the thread states during
diff -r 84e198dc2474 -r f9d57285de70 src/os/windows/vm/os_windows.cpp
--- a/src/os/windows/vm/os_windows.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os/windows/vm/os_windows.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1562,9 +1562,17 @@
    enumerate_modules(pid, _print_module, (void *)st);
 }
 
+void os::print_os_info_brief(outputStream* st) {
+  os::print_os_info(st);
+}
+
 void os::print_os_info(outputStream* st) {
   st->print("OS:");
 
+  os::win32::print_windows_version(st);
+}
+
+void os::win32::print_windows_version(outputStream* st) {
   OSVERSIONINFOEX osvi;
   ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
   osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
diff -r 84e198dc2474 -r f9d57285de70 src/os/windows/vm/os_windows.hpp
--- a/src/os/windows/vm/os_windows.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os/windows/vm/os_windows.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -27,6 +27,7 @@
 // Win32_OS defines the interface to windows operating systems
 
 class win32 {
+  friend class os;
 
  protected:
   static int    _vm_page_size;
@@ -39,6 +40,8 @@
   static bool   _is_windows_2003;
   static bool   _is_windows_server;
 
+  static void print_windows_version(outputStream* st);
+
  public:
   // Windows-specific interface:
   static void   initialize_system_info();
diff -r 84e198dc2474 -r f9d57285de70 src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp
--- a/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -522,11 +522,12 @@
 
       if ((sig == SIGSEGV || sig == SIGBUS) && os::is_poll_address((address)info->si_addr)) {
         stub = SharedRuntime::get_poll_stub(pc);
-#if defined(__APPLE__) && !defined(AMD64)
+#if defined(__APPLE__)
       // 32-bit Darwin reports a SIGBUS for nearly all memory access exceptions.
+      // 64-bit Darwin may also use a SIGBUS (seen with compressed oops).
       // Catching SIGBUS here prevents the implicit SIGBUS NULL check below from
       // being called, so only do so if the implicit NULL check is not necessary.
-      } else if (sig == SIGBUS && MacroAssembler::needs_explicit_null_check((int)info->si_addr)) {
+      } else if (sig == SIGBUS && MacroAssembler::needs_explicit_null_check((intptr_t)info->si_addr)) {
 #else
       } else if (sig == SIGBUS /* && info->si_code == BUS_OBJERR */) {
 #endif
diff -r 84e198dc2474 -r f9d57285de70 src/os_cpu/bsd_x86/vm/vmStructs_bsd_x86.hpp
--- a/src/os_cpu/bsd_x86/vm/vmStructs_bsd_x86.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os_cpu/bsd_x86/vm/vmStructs_bsd_x86.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -29,18 +29,12 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#ifdef __APPLE__
-#define OS_THREAD_ID_TYPE thread_t
-#else
-#define OS_THREAD_ID_TYPE pthread_t
-#endif
-
 #define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
                                                                                                                                      \
   /******************************/                                                                                                   \
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
-  nonstatic_field(OSThread,                      _thread_id,                                      OS_THREAD_ID_TYPE)                 \
+  nonstatic_field(OSThread,                      _thread_id,                                      OSThread::thread_id_t)             \
   nonstatic_field(OSThread,                      _pthread_id,                                     pthread_t)                         \
   /* This must be the last entry, and must be present */                                                                             \
   last_entry()
@@ -52,7 +46,7 @@
   /* Posix Thread IDs   */                                                \
   /**********************/                                                \
                                                                           \
-  declare_unsigned_integer_type(thread_t)                                 \
+  declare_unsigned_integer_type(OSThread::thread_id_t)                    \
   declare_unsigned_integer_type(pthread_t)                                \
                                                                           \
   /* This must be the last entry, and must be present */                  \
diff -r 84e198dc2474 -r f9d57285de70 src/os_cpu/linux_sparc/vm/vmStructs_linux_sparc.hpp
--- a/src/os_cpu/linux_sparc/vm/vmStructs_linux_sparc.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os_cpu/linux_sparc/vm/vmStructs_linux_sparc.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -36,7 +36,7 @@
   /******************************/                                                                                                   \
                                                                                                                                      \
   nonstatic_field(JavaThread,                  _base_of_stack_pointer,                        intptr_t*)                             \
-  nonstatic_field(OSThread,                    _thread_id,                                    pid_t)                                 \
+  nonstatic_field(OSThread,                    _thread_id,                                    OSThread::thread_id_t)                 \
   nonstatic_field(OSThread,                    _pthread_id,                                   pthread_t)                             \
   /* This must be the last entry, and must be present */                                                                             \
   last_entry()
@@ -48,7 +48,7 @@
   /* POSIX Thread IDs */                                                  \
   /**********************/                                                \
                                                                           \
-  declare_integer_type(pid_t)                                             \
+  declare_integer_type(OSThread::thread_id_t)                             \
   declare_unsigned_integer_type(pthread_t)                                \
                                                                           \
   /* This must be the last entry, and must be present */                  \
diff -r 84e198dc2474 -r f9d57285de70 src/os_cpu/linux_x86/vm/vmStructs_linux_x86.hpp
--- a/src/os_cpu/linux_x86/vm/vmStructs_linux_x86.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os_cpu/linux_x86/vm/vmStructs_linux_x86.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -34,7 +34,7 @@
   /******************************/                                                                                                   \
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
-  nonstatic_field(OSThread,                      _thread_id,                                      pid_t)                             \
+  nonstatic_field(OSThread,                      _thread_id,                                      OSThread::thread_id_t)             \
   nonstatic_field(OSThread,                      _pthread_id,                                     pthread_t)                         \
   /* This must be the last entry, and must be present */                                                                             \
   last_entry()
@@ -46,7 +46,7 @@
   /* Posix Thread IDs   */                                                \
   /**********************/                                                \
                                                                           \
-  declare_integer_type(pid_t)                                             \
+  declare_integer_type(OSThread::thread_id_t)                             \
   declare_unsigned_integer_type(pthread_t)                                \
                                                                           \
   /* This must be the last entry, and must be present */                  \
diff -r 84e198dc2474 -r f9d57285de70 src/os_cpu/solaris_sparc/vm/vmStructs_solaris_sparc.hpp
--- a/src/os_cpu/solaris_sparc/vm/vmStructs_solaris_sparc.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os_cpu/solaris_sparc/vm/vmStructs_solaris_sparc.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -36,7 +36,7 @@
   /******************************/                                                                                                   \
                                                                                                                                      \
   nonstatic_field(JavaThread,                  _base_of_stack_pointer,                        intptr_t*)                             \
-  nonstatic_field(OSThread,                    _thread_id,                                    thread_t)                              \
+  nonstatic_field(OSThread,                    _thread_id,                                    OSThread::thread_id_t)                 \
   /* This must be the last entry, and must be present */                                                                             \
   last_entry()
 
@@ -47,7 +47,7 @@
   /* Solaris Thread IDs */                                                \
   /**********************/                                                \
                                                                           \
-  declare_unsigned_integer_type(thread_t)                                 \
+  declare_unsigned_integer_type(OSThread::thread_id_t)                    \
                                                                           \
   /* This must be the last entry, and must be present */                  \
   last_entry()
diff -r 84e198dc2474 -r f9d57285de70 src/os_cpu/solaris_x86/vm/vmStructs_solaris_x86.hpp
--- a/src/os_cpu/solaris_x86/vm/vmStructs_solaris_x86.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os_cpu/solaris_x86/vm/vmStructs_solaris_x86.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -35,7 +35,7 @@
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
                                                                                                                                      \
-  nonstatic_field(OSThread,                      _thread_id,                                    thread_t)                              \
+  nonstatic_field(OSThread,                      _thread_id,                                    OSThread::thread_id_t)               \
                                                                                                                                      \
   /* This must be the last entry, and must be present */                                                                             \
   last_entry()
@@ -46,7 +46,7 @@
   /* Solaris Thread IDs */                                                \
   /**********************/                                                \
                                                                           \
-  declare_unsigned_integer_type(thread_t)                                 \
+  declare_unsigned_integer_type(OSThread::thread_id_t)                    \
                                                                           \
   /* This must be the last entry, and must be present */                  \
   last_entry()
diff -r 84e198dc2474 -r f9d57285de70 src/os_cpu/windows_x86/vm/vmStructs_windows_x86.hpp
--- a/src/os_cpu/windows_x86/vm/vmStructs_windows_x86.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/os_cpu/windows_x86/vm/vmStructs_windows_x86.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -35,7 +35,7 @@
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
                                                                                                                                      \
-  nonstatic_field(OSThread,                    _thread_id,                                    unsigned long)                         \
+  nonstatic_field(OSThread,                    _thread_id,                                    OSThread::thread_id_t)                 \
   unchecked_nonstatic_field(OSThread,          _thread_handle,                                sizeof(HANDLE)) /* NOTE: no type */    \
                                                                                                                                      \
   /* This must be the last entry, and must be present */                                                                             \
@@ -43,6 +43,7 @@
 
 #define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
                                                                           \
+  declare_unsigned_integer_type(OSThread::thread_id_t)                    \
   /* This must be the last entry, and must be present */                  \
   last_entry()
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/c1/c1_GraphBuilder.cpp
--- a/src/share/vm/c1/c1_GraphBuilder.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/c1/c1_GraphBuilder.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -2949,6 +2949,8 @@
   case vmIntrinsics::_dtan          : // fall through
   case vmIntrinsics::_dlog          : // fall through
   case vmIntrinsics::_dlog10        : // fall through
+  case vmIntrinsics::_dexp          : // fall through
+  case vmIntrinsics::_dpow          : // fall through
     {
       // Compiles where the root method is an intrinsic need a special
       // compilation environment because the bytecodes for the method
@@ -2969,6 +2971,9 @@
       _state = start_block->state()->copy_for_parsing();
       _last  = start_block;
       load_local(doubleType, 0);
+      if (scope->method()->intrinsic_id() == vmIntrinsics::_dpow) {
+        load_local(doubleType, 2);
+      }
 
       // Emit the intrinsic node.
       bool result = try_inline_intrinsics(scope->method());
@@ -3182,6 +3187,8 @@
     case vmIntrinsics::_dtan          : // fall through
     case vmIntrinsics::_dlog          : // fall through
     case vmIntrinsics::_dlog10        : // fall through
+    case vmIntrinsics::_dexp          : // fall through
+    case vmIntrinsics::_dpow          : // fall through
       if (!InlineMathNatives) return false;
       cantrap = false;
       preserves_state = true;
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/c1/c1_LIR.cpp
--- a/src/share/vm/c1/c1_LIR.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/c1/c1_LIR.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -624,11 +624,13 @@
     {
       assert(op->as_Op2() != NULL, "must be");
       LIR_Op2* op2 = (LIR_Op2*)op;
+      assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
+             op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 
       if (op2->_info)                     do_info(op2->_info);
       if (op2->_opr1->is_valid())         do_input(op2->_opr1);
       if (op2->_opr2->is_valid())         do_input(op2->_opr2);
-      if (op2->_tmp->is_valid())          do_temp(op2->_tmp);
+      if (op2->_tmp1->is_valid())         do_temp(op2->_tmp1);
       if (op2->_result->is_valid())       do_output(op2->_result);
 
       break;
@@ -641,7 +643,8 @@
       assert(op->as_Op2() != NULL, "must be");
       LIR_Op2* op2 = (LIR_Op2*)op;
 
-      assert(op2->_info == NULL && op2->_tmp->is_illegal(), "not used");
+      assert(op2->_info == NULL && op2->_tmp1->is_illegal() && op2->_tmp2->is_illegal() &&
+             op2->_tmp3->is_illegal() && op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
       assert(op2->_opr1->is_valid() && op2->_opr2->is_valid() && op2->_result->is_valid(), "used");
 
       do_input(op2->_opr1);
@@ -665,10 +668,12 @@
       assert(op2->_opr1->is_valid(), "used");
       assert(op2->_opr2->is_valid(), "used");
       assert(op2->_result->is_valid(), "used");
+      assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
+             op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 
       do_input(op2->_opr1); do_temp(op2->_opr1);
       do_input(op2->_opr2); do_temp(op2->_opr2);
-      if (op2->_tmp->is_valid()) do_temp(op2->_tmp);
+      if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
       do_output(op2->_result);
 
       break;
@@ -682,6 +687,8 @@
       if (op2->_opr1->is_valid())         do_temp(op2->_opr1);
       if (op2->_opr2->is_valid())         do_input(op2->_opr2); // exception object is input parameter
       assert(op2->_result->is_illegal(), "no result");
+      assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
+             op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 
       break;
     }
@@ -702,7 +709,8 @@
     case lir_sin:
     case lir_cos:
     case lir_log:
-    case lir_log10: {
+    case lir_log10:
+    case lir_exp: {
       assert(op->as_Op2() != NULL, "must be");
       LIR_Op2* op2 = (LIR_Op2*)op;
 
@@ -711,16 +719,47 @@
       // Register input operand as temp to guarantee that it doesn't
       // overlap with the input.
       assert(op2->_info == NULL, "not used");
+      assert(op2->_tmp5->is_illegal(), "not used");
+      assert(op2->_tmp2->is_valid() == (op->code() == lir_exp), "not used");
+      assert(op2->_tmp3->is_valid() == (op->code() == lir_exp), "not used");
+      assert(op2->_tmp4->is_valid() == (op->code() == lir_exp), "not used");
       assert(op2->_opr1->is_valid(), "used");
       do_input(op2->_opr1); do_temp(op2->_opr1);
 
       if (op2->_opr2->is_valid())         do_temp(op2->_opr2);
-      if (op2->_tmp->is_valid())          do_temp(op2->_tmp);
+      if (op2->_tmp1->is_valid())         do_temp(op2->_tmp1);
+      if (op2->_tmp2->is_valid())         do_temp(op2->_tmp2);
+      if (op2->_tmp3->is_valid())         do_temp(op2->_tmp3);
+      if (op2->_tmp4->is_valid())         do_temp(op2->_tmp4);
       if (op2->_result->is_valid())       do_output(op2->_result);
 
       break;
     }
 
+    case lir_pow: {
+      assert(op->as_Op2() != NULL, "must be");
+      LIR_Op2* op2 = (LIR_Op2*)op;
+
+      // On x86 pow needs two temporary fpu stack slots: tmp1 and
+      // tmp2. Register input operands as temps to guarantee that it
+      // doesn't overlap with the temporary slots.
+      assert(op2->_info == NULL, "not used");
+      assert(op2->_opr1->is_valid() && op2->_opr2->is_valid(), "used");
+      assert(op2->_tmp1->is_valid() && op2->_tmp2->is_valid() && op2->_tmp3->is_valid()
+             && op2->_tmp4->is_valid() && op2->_tmp5->is_valid(), "used");
+      assert(op2->_result->is_valid(), "used");
+
+      do_input(op2->_opr1); do_temp(op2->_opr1);
+      do_input(op2->_opr2); do_temp(op2->_opr2);
+      do_temp(op2->_tmp1);
+      do_temp(op2->_tmp2);
+      do_temp(op2->_tmp3);
+      do_temp(op2->_tmp4);
+      do_temp(op2->_tmp5);
+      do_output(op2->_result);
+
+      break;
+    }
 
 // LIR_Op3
     case lir_idiv:
@@ -1670,6 +1709,8 @@
      case lir_tan:                   s = "tan";           break;
      case lir_log:                   s = "log";           break;
      case lir_log10:                 s = "log10";         break;
+     case lir_exp:                   s = "exp";           break;
+     case lir_pow:                   s = "pow";           break;
      case lir_logic_and:             s = "logic_and";     break;
      case lir_logic_or:              s = "logic_or";      break;
      case lir_logic_xor:             s = "logic_xor";     break;
@@ -1892,7 +1933,11 @@
   }
   in_opr1()->print(out);    out->print(" ");
   in_opr2()->print(out);    out->print(" ");
-  if (tmp_opr()->is_valid()) { tmp_opr()->print(out);    out->print(" "); }
+  if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out);    out->print(" "); }
+  if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out);    out->print(" "); }
+  if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out);    out->print(" "); }
+  if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out);    out->print(" "); }
+  if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out);    out->print(" "); }
   result_opr()->print(out);
 }
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/c1/c1_LIR.hpp
--- a/src/share/vm/c1/c1_LIR.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/c1/c1_LIR.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -916,6 +916,8 @@
       , lir_tan
       , lir_log
       , lir_log10
+      , lir_exp
+      , lir_pow
       , lir_logic_and
       , lir_logic_or
       , lir_logic_xor
@@ -1560,7 +1562,11 @@
   LIR_Opr   _opr1;
   LIR_Opr   _opr2;
   BasicType _type;
-  LIR_Opr   _tmp;
+  LIR_Opr   _tmp1;
+  LIR_Opr   _tmp2;
+  LIR_Opr   _tmp3;
+  LIR_Opr   _tmp4;
+  LIR_Opr   _tmp5;
   LIR_Condition _condition;
 
   void verify() const;
@@ -1573,7 +1579,11 @@
     , _type(T_ILLEGAL)
     , _condition(condition)
     , _fpu_stack_size(0)
-    , _tmp(LIR_OprFact::illegalOpr) {
+    , _tmp1(LIR_OprFact::illegalOpr)
+    , _tmp2(LIR_OprFact::illegalOpr)
+    , _tmp3(LIR_OprFact::illegalOpr)
+    , _tmp4(LIR_OprFact::illegalOpr)
+    , _tmp5(LIR_OprFact::illegalOpr) {
     assert(code == lir_cmp, "code check");
   }
 
@@ -1584,7 +1594,11 @@
     , _type(type)
     , _condition(condition)
     , _fpu_stack_size(0)
-    , _tmp(LIR_OprFact::illegalOpr) {
+    , _tmp1(LIR_OprFact::illegalOpr)
+    , _tmp2(LIR_OprFact::illegalOpr)
+    , _tmp3(LIR_OprFact::illegalOpr)
+    , _tmp4(LIR_OprFact::illegalOpr)
+    , _tmp5(LIR_OprFact::illegalOpr) {
     assert(code == lir_cmove, "code check");
     assert(type != T_ILLEGAL, "cmove should have type");
   }
@@ -1597,25 +1611,38 @@
     , _type(type)
     , _condition(lir_cond_unknown)
     , _fpu_stack_size(0)
-    , _tmp(LIR_OprFact::illegalOpr) {
+    , _tmp1(LIR_OprFact::illegalOpr)
+    , _tmp2(LIR_OprFact::illegalOpr)
+    , _tmp3(LIR_OprFact::illegalOpr)
+    , _tmp4(LIR_OprFact::illegalOpr)
+    , _tmp5(LIR_OprFact::illegalOpr) {
     assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
   }
 
-  LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp)
+  LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2 = LIR_OprFact::illegalOpr,
+          LIR_Opr tmp3 = LIR_OprFact::illegalOpr, LIR_Opr tmp4 = LIR_OprFact::illegalOpr, LIR_Opr tmp5 = LIR_OprFact::illegalOpr)
     : LIR_Op(code, result, NULL)
     , _opr1(opr1)
     , _opr2(opr2)
     , _type(T_ILLEGAL)
     , _condition(lir_cond_unknown)
     , _fpu_stack_size(0)
-    , _tmp(tmp) {
+    , _tmp1(tmp1)
+    , _tmp2(tmp2)
+    , _tmp3(tmp3)
+    , _tmp4(tmp4)
+    , _tmp5(tmp5) {
     assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
   }
 
   LIR_Opr in_opr1() const                        { return _opr1; }
   LIR_Opr in_opr2() const                        { return _opr2; }
   BasicType type()  const                        { return _type; }
-  LIR_Opr tmp_opr() const                        { return _tmp; }
+  LIR_Opr tmp1_opr() const                       { return _tmp1; }
+  LIR_Opr tmp2_opr() const                       { return _tmp2; }
+  LIR_Opr tmp3_opr() const                       { return _tmp3; }
+  LIR_Opr tmp4_opr() const                       { return _tmp4; }
+  LIR_Opr tmp5_opr() const                       { return _tmp5; }
   LIR_Condition condition() const  {
     assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); return _condition;
   }
@@ -2025,6 +2052,8 @@
   void sin (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_sin , from, tmp1, to, tmp2)); }
   void cos (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_cos , from, tmp1, to, tmp2)); }
   void tan (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_tan , from, tmp1, to, tmp2)); }
+  void exp (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, LIR_Opr tmp4, LIR_Opr tmp5)                { append(new LIR_Op2(lir_exp , from, tmp1, to, tmp2, tmp3, tmp4, tmp5)); }
+  void pow (LIR_Opr arg1, LIR_Opr arg2, LIR_Opr res, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, LIR_Opr tmp4, LIR_Opr tmp5) { append(new LIR_Op2(lir_pow, arg1, arg2, res, tmp1, tmp2, tmp3, tmp4, tmp5)); }
 
   void add (LIR_Opr left, LIR_Opr right, LIR_Opr res)      { append(new LIR_Op2(lir_add, left, right, res)); }
   void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_sub, left, right, res, info)); }
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/c1/c1_LIRAssembler.cpp
--- a/src/share/vm/c1/c1_LIRAssembler.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/c1/c1_LIRAssembler.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -718,7 +718,7 @@
       if (op->in_opr2()->is_constant()) {
         shift_op(op->code(), op->in_opr1(), op->in_opr2()->as_constant_ptr()->as_jint(), op->result_opr());
       } else {
-        shift_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op->tmp_opr());
+        shift_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op->tmp1_opr());
       }
       break;
 
@@ -746,6 +746,8 @@
     case lir_cos:
     case lir_log:
     case lir_log10:
+    case lir_exp:
+    case lir_pow:
       intrinsic_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op);
       break;
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/c1/c1_LIRGenerator.cpp
--- a/src/share/vm/c1/c1_LIRGenerator.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/c1/c1_LIRGenerator.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -2960,7 +2960,9 @@
   case vmIntrinsics::_dsqrt:          // fall through
   case vmIntrinsics::_dtan:           // fall through
   case vmIntrinsics::_dsin :          // fall through
-  case vmIntrinsics::_dcos :          do_MathIntrinsic(x); break;
+  case vmIntrinsics::_dcos :          // fall through
+  case vmIntrinsics::_dexp :          // fall through
+  case vmIntrinsics::_dpow :          do_MathIntrinsic(x); break;
   case vmIntrinsics::_arraycopy:      do_ArrayCopy(x);     break;
 
   // java.nio.Buffer.checkIndex
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/c1/c1_LinearScan.cpp
--- a/src/share/vm/c1/c1_LinearScan.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/c1/c1_LinearScan.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -6579,6 +6579,8 @@
         case lir_abs:
         case lir_log10:
         case lir_log:
+        case lir_pow:
+        case lir_exp:
         case lir_logic_and:
         case lir_logic_or:
         case lir_logic_xor:
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/classfile/classFileParser.cpp
--- a/src/share/vm/classfile/classFileParser.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/classfile/classFileParser.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1082,12 +1082,36 @@
 
   int num_injected = 0;
   InjectedField* injected = JavaClasses::get_injected(class_name, &num_injected);
-
-  // Tuples of shorts [access, name index, sig index, initial value index, byte offset, generic signature index]
-  typeArrayOop new_fields = oopFactory::new_permanent_shortArray((length + num_injected) * FieldInfo::field_slots, CHECK_(nullHandle));
-  typeArrayHandle fields(THREAD, new_fields);
+  int total_fields = length + num_injected;
+
+  // The field array starts with tuples of shorts
+  // [access, name index, sig index, initial value index, byte offset].
+  // A generic signature slot only exists for field with generic
+  // signature attribute. And the access flag is set with
+  // JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE for that field. The generic
+  // signature slots are at the end of the field array and after all
+  // other fields data.
+  //
+  //   f1: [access, name index, sig index, initial value index, low_offset, high_offset]
+  //   f2: [access, name index, sig index, initial value index, low_offset, high_offset]
+  //       ...
+  //   fn: [access, name index, sig index, initial value index, low_offset, high_offset]
+  //       [generic signature index]
+  //       [generic signature index]
+  //       ...
+  //
+  // Allocate a temporary resource array for field data. For each field,
+  // a slot is reserved in the temporary array for the generic signature
+  // index. After parsing all fields, the data are copied to a permanent
+  // array and any unused slots will be discarded.
+  ResourceMark rm(THREAD);
+  u2* fa = NEW_RESOURCE_ARRAY_IN_THREAD(
+             THREAD, u2, total_fields * (FieldInfo::field_slots + 1));
 
   typeArrayHandle field_annotations;
+  // The generic signature slots start after all other fields' data.
+  int generic_signature_slot = total_fields * FieldInfo::field_slots;
+  int num_generic_signature = 0;
   for (int n = 0; n < length; n++) {
     cfs->guarantee_more(8, CHECK_(nullHandle));  // access_flags, name_index, descriptor_index, attributes_count
 
@@ -1135,14 +1159,19 @@
       if (is_synthetic) {
         access_flags.set_is_synthetic();
       }
+      if (generic_signature_index != 0) {
+        access_flags.set_field_has_generic_signature();
+        fa[generic_signature_slot] = generic_signature_index;
+        generic_signature_slot ++;
+        num_generic_signature ++;
+      }
     }
 
-    FieldInfo* field = FieldInfo::from_field_array(fields(), n);
+    FieldInfo* field = FieldInfo::from_field_array(fa, n);
     field->initialize(access_flags.as_short(),
                       name_index,
                       signature_index,
                       constantvalue_index,
-                      generic_signature_index,
                       0);
 
     BasicType type = cp->basic_type_for_signature_at(signature_index);
@@ -1155,8 +1184,8 @@
     field->set_offset(atype);
   }
 
+  int index = length;
   if (num_injected != 0) {
-    int index = length;
     for (int n = 0; n < num_injected; n++) {
       // Check for duplicates
       if (injected[n].may_be_java) {
@@ -1164,7 +1193,7 @@
         Symbol* signature = injected[n].signature();
         bool duplicate = false;
         for (int i = 0; i < length; i++) {
-          FieldInfo* f = FieldInfo::from_field_array(fields(), i);
+          FieldInfo* f = FieldInfo::from_field_array(fa, i);
           if (name      == cp->symbol_at(f->name_index()) &&
               signature == cp->symbol_at(f->signature_index())) {
             // Symbol is desclared in Java so skip this one
@@ -1179,12 +1208,11 @@
       }
 
       // Injected field
-      FieldInfo* field = FieldInfo::from_field_array(fields(), index);
+      FieldInfo* field = FieldInfo::from_field_array(fa, index);
       field->initialize(JVM_ACC_FIELD_INTERNAL,
                         injected[n].name_index,
                         injected[n].signature_index,
                         0,
-                        0,
                         0);
 
       BasicType type = FieldType::basic_type(injected[n].signature());
@@ -1197,17 +1225,27 @@
       field->set_offset(atype);
       index++;
     }
-
-    if (index < length + num_injected) {
-      // sometimes injected fields already exist in the Java source so
-      // the fields array could be too long.  In that case trim the
-      // fields array.
-      new_fields = oopFactory::new_permanent_shortArray(index * FieldInfo::field_slots, CHECK_(nullHandle));
-      for (int i = 0; i < index * FieldInfo::field_slots; i++) {
-        new_fields->short_at_put(i, fields->short_at(i));
-      }
-      fields = new_fields;
+  }
+
+  // Now copy the fields' data from the temporary resource array.
+  // Sometimes injected fields already exist in the Java source so
+  // the fields array could be too long.  In that case the
+  // fields array is trimed. Also unused slots that were reserved
+  // for generic signature indexes are discarded.
+  typeArrayOop new_fields = oopFactory::new_permanent_shortArray(
+    index * FieldInfo::field_slots + num_generic_signature,
+    CHECK_(nullHandle));
+  typeArrayHandle fields(THREAD, new_fields);
+  {
+    int i = 0;
+    for (; i < index * FieldInfo::field_slots; i++) {
+      new_fields->short_at_put(i, fa[i]);
     }
+    for (int j = total_fields * FieldInfo::field_slots;
+         j < generic_signature_slot; j++) {
+      new_fields->short_at_put(i++, fa[j]);
+    }
+    assert(i == new_fields->length(), "");
   }
 
   if (_need_verify && length > 1) {
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/classfile/javaClasses.cpp
--- a/src/share/vm/classfile/javaClasses.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/classfile/javaClasses.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -143,7 +143,27 @@
 }
 
 
+int java_lang_String::value_offset  = 0;
+int java_lang_String::offset_offset = 0;
+int java_lang_String::count_offset  = 0;
+int java_lang_String::hash_offset   = 0;
+
+bool java_lang_String::initialized  = false;
+
+void java_lang_String::compute_offsets() {
+  assert(!initialized, "offsets should be initialized only once");
+
+  klassOop k = SystemDictionary::String_klass();
+  compute_offset(value_offset,           k, vmSymbols::value_name(),  vmSymbols::char_array_signature());
+  compute_optional_offset(offset_offset, k, vmSymbols::offset_name(), vmSymbols::int_signature());
+  compute_optional_offset(count_offset,  k, vmSymbols::count_name(),  vmSymbols::int_signature());
+  compute_optional_offset(hash_offset,   k, vmSymbols::hash_name(),   vmSymbols::int_signature());
+
+  initialized = true;
+}
+
 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) {
+  assert(initialized, "Must be initialized");
   // Create the String object first, so there's a chance that the String
   // and the char array it points to end up in the same cache line.
   oop obj;
@@ -2837,10 +2857,6 @@
 
 
 
-int java_lang_String::value_offset;
-int java_lang_String::offset_offset;
-int java_lang_String::count_offset;
-int java_lang_String::hash_offset;
 int java_lang_Class::_klass_offset;
 int java_lang_Class::_array_klass_offset;
 int java_lang_Class::_resolved_constructor_offset;
@@ -3000,12 +3016,6 @@
   const int x = heapOopSize;
   const int header = instanceOopDesc::base_offset_in_bytes();
 
-  // Do the String Class
-  java_lang_String::value_offset  = java_lang_String::hc_value_offset  * x + header;
-  java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header;
-  java_lang_String::count_offset  = java_lang_String::offset_offset + sizeof (jint);
-  java_lang_String::hash_offset   = java_lang_String::count_offset + sizeof (jint);
-
   // Throwable Class
   java_lang_Throwable::backtrace_offset  = java_lang_Throwable::hc_backtrace_offset  * x + header;
   java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header;
@@ -3200,9 +3210,13 @@
   // java.lang.String
 
   CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C");
-  CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I");
-  CHECK_OFFSET("java/lang/String", java_lang_String, count, "I");
-  CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I");
+  if (java_lang_String::has_offset_field()) {
+    CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I");
+    CHECK_OFFSET("java/lang/String", java_lang_String, count, "I");
+  }
+  if (java_lang_String::has_hash_field()) {
+    CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I");
+  }
 
   // java.lang.Class
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/classfile/javaClasses.hpp
--- a/src/share/vm/classfile/javaClasses.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/classfile/javaClasses.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -52,26 +52,36 @@
 
 class java_lang_String : AllStatic {
  private:
-  enum {
-    hc_value_offset  = 0,
-    hc_offset_offset = 1
-    //hc_count_offset = 2  -- not a word-scaled offset
-    //hc_hash_offset  = 3  -- not a word-scaled offset
-  };
-
   static int value_offset;
   static int offset_offset;
   static int count_offset;
   static int hash_offset;
 
+  static bool initialized;
+
   static Handle basic_create(int length, bool tenured, TRAPS);
   static Handle basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS);
 
-  static void set_value( oop string, typeArrayOop buffer) { string->obj_field_put(value_offset,  (oop)buffer); }
-  static void set_offset(oop string, int offset)          { string->int_field_put(offset_offset, offset); }
-  static void set_count( oop string, int count)           { string->int_field_put(count_offset,  count);  }
+  static void set_value( oop string, typeArrayOop buffer) {
+    assert(initialized, "Must be initialized");
+    string->obj_field_put(value_offset,  (oop)buffer);
+  }
+  static void set_offset(oop string, int offset) {
+    assert(initialized, "Must be initialized");
+    if (offset_offset > 0) {
+      string->int_field_put(offset_offset, offset);
+    }
+  }
+  static void set_count( oop string, int count) {
+    assert(initialized, "Must be initialized");
+    if (count_offset > 0) {
+      string->int_field_put(count_offset,  count);
+    }
+  }
 
  public:
+  static void compute_offsets();
+
   // Instance creation
   static Handle create_from_unicode(jchar* unicode, int len, TRAPS);
   static Handle create_tenured_from_unicode(jchar* unicode, int len, TRAPS);
@@ -82,23 +92,61 @@
   static Handle create_from_platform_dependent_str(const char* str, TRAPS);
   static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS);
 
-  static int value_offset_in_bytes()  { return value_offset;  }
-  static int count_offset_in_bytes()  { return count_offset;  }
-  static int offset_offset_in_bytes() { return offset_offset; }
-  static int hash_offset_in_bytes()   { return hash_offset;   }
+  static bool has_offset_field()  {
+    assert(initialized, "Must be initialized");
+    return (offset_offset > 0);
+  }
+
+  static bool has_count_field()  {
+    assert(initialized, "Must be initialized");
+    return (count_offset > 0);
+  }
+
+  static bool has_hash_field()  {
+    assert(initialized, "Must be initialized");
+    return (hash_offset > 0);
+  }
+
+  static int value_offset_in_bytes()  {
+    assert(initialized && (value_offset > 0), "Must be initialized");
+    return value_offset;
+  }
+  static int count_offset_in_bytes()  {
+    assert(initialized && (count_offset > 0), "Must be initialized");
+    return count_offset;
+  }
+  static int offset_offset_in_bytes() {
+    assert(initialized && (offset_offset > 0), "Must be initialized");
+    return offset_offset;
+  }
+  static int hash_offset_in_bytes()   {
+    assert(initialized && (hash_offset > 0), "Must be initialized");
+    return hash_offset;
+  }
 
   // Accessors
   static typeArrayOop value(oop java_string) {
+    assert(initialized && (value_offset > 0), "Must be initialized");
     assert(is_instance(java_string), "must be java_string");
     return (typeArrayOop) java_string->obj_field(value_offset);
   }
   static int offset(oop java_string) {
+    assert(initialized, "Must be initialized");
     assert(is_instance(java_string), "must be java_string");
-    return java_string->int_field(offset_offset);
+    if (offset_offset > 0) {
+      return java_string->int_field(offset_offset);
+    } else {
+      return 0;
+    }
   }
   static int length(oop java_string) {
+    assert(initialized, "Must be initialized");
     assert(is_instance(java_string), "must be java_string");
-    return java_string->int_field(count_offset);
+    if (count_offset > 0) {
+      return java_string->int_field(count_offset);
+    } else {
+      return ((typeArrayOop)java_string->obj_field(value_offset))->length();
+    }
   }
   static int utf8_length(oop java_string);
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/classfile/systemDictionary.cpp
--- a/src/share/vm/classfile/systemDictionary.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/classfile/systemDictionary.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1971,6 +1971,9 @@
   // first do Object, String, Class
   initialize_wk_klasses_through(WK_KLASS_ENUM_NAME(Class_klass), scan, CHECK);
 
+  // Calculate offsets for String and Class classes since they are loaded and
+  // can be used after this point.
+  java_lang_String::compute_offsets();
   java_lang_Class::compute_offsets();
 
   // Fixup mirrors for classes loaded before java.lang.Class.
@@ -2760,7 +2763,7 @@
       class_size += ik->local_interfaces()->size();
       class_size += ik->transitive_interfaces()->size();
       // We do not have to count implementors, since we only store one!
-      class_size += ik->all_fields_count() * FieldInfo::field_slots;
+      class_size += ik->fields()->length();
     }
   }
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/classfile/vmSymbols.hpp
--- a/src/share/vm/classfile/vmSymbols.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/classfile/vmSymbols.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -340,6 +340,9 @@
   template(park_event_name,                           "nativeParkEventPointer")                   \
   template(cache_field_name,                          "cache")                                    \
   template(value_name,                                "value")                                    \
+  template(offset_name,                               "offset")                                   \
+  template(count_name,                                "count")                                    \
+  template(hash_name,                                 "hash")                                     \
   template(frontCacheEnabled_name,                    "frontCacheEnabled")                        \
   template(stringCacheEnabled_name,                   "stringCacheEnabled")                       \
   template(numberOfLeadingZeros_name,                 "numberOfLeadingZeros")                     \
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -58,8 +58,11 @@
 void CompactibleFreeListSpace::set_cms_values() {
   // Set CMS global values
   assert(MinChunkSize == 0, "already set");
-  #define numQuanta(x,y) ((x+y-1)/y)
-  MinChunkSize = numQuanta(sizeof(FreeChunk), MinObjAlignmentInBytes) * MinObjAlignment;
+
+  // MinChunkSize should be a multiple of MinObjAlignment and be large enough
+  // for chunks to contain a FreeChunk.
+  size_t min_chunk_size_in_bytes = align_size_up(sizeof(FreeChunk), MinObjAlignmentInBytes);
+  MinChunkSize = min_chunk_size_in_bytes / BytesPerWord;
 
   assert(IndexSetStart == 0 && IndexSetStride == 0, "already set");
   IndexSetStart  = MinChunkSize;
@@ -2534,12 +2537,8 @@
     " linear allocation buffers");
   assert(BinaryTreeDictionary<FreeChunk>::min_tree_chunk_size*HeapWordSize == sizeof(TreeChunk<FreeChunk>),
     "else MIN_TREE_CHUNK_SIZE is wrong");
-  assert((IndexSetStride == 2 && IndexSetStart == 4) ||                   // 32-bit
-         (IndexSetStride == 1 && IndexSetStart == 3), "just checking");   // 64-bit
-  assert((IndexSetStride != 2) || (IndexSetStart % 2 == 0),
-      "Some for-loops may be incorrectly initialized");
-  assert((IndexSetStride != 2) || (IndexSetSize % 2 == 1),
-      "For-loops that iterate over IndexSet with stride 2 may be wrong");
+  assert(IndexSetStart != 0, "IndexSetStart not initialized");
+  assert(IndexSetStride != 0, "IndexSetStride not initialized");
 }
 #endif
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -6332,10 +6332,10 @@
   )
 }
 
-void CMSCollector::do_CMS_operation(CMS_op_type op) {
+void CMSCollector::do_CMS_operation(CMS_op_type op, GCCause::Cause gc_cause) {
   gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
   TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-  TraceTime t("GC", PrintGC, !PrintGCDetails, gclog_or_tty);
+  TraceTime t(GCCauseString("GC", gc_cause), PrintGC, !PrintGCDetails, gclog_or_tty);
   TraceCollectorStats tcs(counters());
 
   switch (op) {
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -717,7 +717,7 @@
     CMS_op_checkpointRootsFinal
   };
 
-  void do_CMS_operation(CMS_op_type op);
+  void do_CMS_operation(CMS_op_type op, GCCause::Cause gc_cause);
   bool stop_world_and_do(CMS_op_type op);
 
   OopTaskQueueSet* task_queues() { return _task_queues; }
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/concurrentMarkSweep/vmCMSOperations.cpp
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/vmCMSOperations.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/vmCMSOperations.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -146,7 +146,7 @@
   VM_CMS_Operation::verify_before_gc();
 
   IsGCActiveMark x; // stop-world GC active
-  _collector->do_CMS_operation(CMSCollector::CMS_op_checkpointRootsInitial);
+  _collector->do_CMS_operation(CMSCollector::CMS_op_checkpointRootsInitial, gch->gc_cause());
 
   VM_CMS_Operation::verify_after_gc();
 #ifndef USDT2
@@ -178,7 +178,7 @@
   VM_CMS_Operation::verify_before_gc();
 
   IsGCActiveMark x; // stop-world GC active
-  _collector->do_CMS_operation(CMSCollector::CMS_op_checkpointRootsFinal);
+  _collector->do_CMS_operation(CMSCollector::CMS_op_checkpointRootsFinal, gch->gc_cause());
 
   VM_CMS_Operation::verify_after_gc();
 #ifndef USDT2
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -952,9 +952,18 @@
         }
         should_try_gc = false;
       } else {
-        // Read the GC count while still holding the Heap_lock.
-        gc_count_before = total_collections();
-        should_try_gc = true;
+        // The GCLocker may not be active but the GCLocker initiated
+        // GC may not yet have been performed (GCLocker::needs_gc()
+        // returns true). In this case we do not try this GC and
+        // wait until the GCLocker initiated GC is performed, and
+        // then retry the allocation.
+        if (GC_locker::needs_gc()) {
+          should_try_gc = false;
+        } else {
+          // Read the GC count while still holding the Heap_lock.
+          gc_count_before = total_collections();
+          should_try_gc = true;
+        }
       }
     }
 
@@ -975,6 +984,9 @@
         return NULL;
       }
     } else {
+      // The GCLocker is either active or the GCLocker initiated
+      // GC has not yet been performed. Stall until it is and
+      // then retry the allocation.
       GC_locker::stall_until_clear();
     }
 
@@ -1054,9 +1066,18 @@
       if (GC_locker::is_active_and_needs_gc()) {
         should_try_gc = false;
       } else {
-        // Read the GC count while still holding the Heap_lock.
-        gc_count_before = total_collections();
-        should_try_gc = true;
+         // The GCLocker may not be active but the GCLocker initiated
+        // GC may not yet have been performed (GCLocker::needs_gc()
+        // returns true). In this case we do not try this GC and
+        // wait until the GCLocker initiated GC is performed, and
+        // then retry the allocation.
+        if (GC_locker::needs_gc()) {
+          should_try_gc = false;
+        } else {
+          // Read the GC count while still holding the Heap_lock.
+          gc_count_before = total_collections();
+          should_try_gc = true;
+        }
       }
     }
 
@@ -1081,6 +1102,9 @@
         return NULL;
       }
     } else {
+      // The GCLocker is either active or the GCLocker initiated
+      // GC has not yet been performed. Stall until it is and
+      // then retry the allocation.
       GC_locker::stall_until_clear();
     }
 
@@ -1252,10 +1276,7 @@
     gclog_or_tty->date_stamp(G1Log::fine() && PrintGCDateStamps);
     TraceCPUTime tcpu(G1Log::finer(), true, gclog_or_tty);
 
-    char verbose_str[128];
-    sprintf(verbose_str, "Full GC (%s)", GCCause::to_string(gc_cause()));
-    TraceTime t(verbose_str, G1Log::fine(), true, gclog_or_tty);
-
+    TraceTime t(GCCauseString("Full GC", gc_cause()), G1Log::fine(), true, gclog_or_tty);
     TraceCollectorStats tcs(g1mm()->full_collection_counters());
     TraceMemoryManagerStats tms(true /* fullGC */, gc_cause());
 
@@ -3600,12 +3621,10 @@
     gclog_or_tty->date_stamp(G1Log::fine() && PrintGCDateStamps);
     TraceCPUTime tcpu(G1Log::finer(), true, gclog_or_tty);
 
-    char verbose_str[128];
-    sprintf(verbose_str, "GC pause (%s) (%s)%s",
-      GCCause::to_string(gc_cause()),
-      g1_policy()->gcs_are_young() ? "young" : "mixed",
-      g1_policy()->during_initial_mark_pause() ? " (initial-mark)" : "");
-    TraceTime t(verbose_str, G1Log::fine() && !G1Log::finer(), true, gclog_or_tty);
+    GCCauseString gc_cause_str = GCCauseString("GC pause", gc_cause())
+      .append(g1_policy()->gcs_are_young() ? " (young)" : " (mixed)")
+      .append(g1_policy()->during_initial_mark_pause() ? " (initial-mark)" : "");
+    TraceTime t(gc_cause_str, G1Log::fine() && !G1Log::finer(), true, gclog_or_tty);
 
     TraceCollectorStats tcs(g1mm()->incremental_collection_counters());
     TraceMemoryManagerStats tms(false /* fullGC */, gc_cause());
@@ -3911,12 +3930,6 @@
 
       gc_epilogue(false);
     }
-
-    if (ExitAfterGCNum > 0 && total_collections() == ExitAfterGCNum) {
-      gclog_or_tty->print_cr("Stopping after GC #%d", ExitAfterGCNum);
-      print_tracing_info();
-      vm_exit(-1);
-    }
   }
 
   // The closing of the inner scope, immediately above, will complete
@@ -5502,7 +5515,7 @@
   if (evacuation_failed()) {
     remove_self_forwarding_pointers();
     if (G1Log::finer()) {
-      gclog_or_tty->print(" (to-space overflow)");
+      gclog_or_tty->print(" (to-space exhausted)");
     } else if (G1Log::fine()) {
       gclog_or_tty->print("--");
     }
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp
--- a/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -133,12 +133,7 @@
                         ? ParallelGCThreads : 1),
 
   _recent_gc_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
-  _all_pause_times_ms(new NumberSeq()),
   _stop_world_start(0.0),
-  _all_stop_world_times_ms(new NumberSeq()),
-  _all_yield_times_ms(new NumberSeq()),
-
-  _summary(new Summary()),
 
   _cur_clear_ct_time_ms(0.0),
   _root_region_scan_wait_time_ms(0.0),
@@ -154,12 +149,6 @@
   _num_cc_clears(0L),
 #endif
 
-  _aux_num(10),
-  _all_aux_times_ms(new NumberSeq[_aux_num]),
-  _cur_aux_start_times_ms(new double[_aux_num]),
-  _cur_aux_times_ms(new double[_aux_num]),
-  _cur_aux_times_set(new bool[_aux_num]),
-
   _concurrent_mark_remark_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
   _concurrent_mark_cleanup_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
 
@@ -185,8 +174,6 @@
   _pause_time_target_ms((double) MaxGCPauseMillis),
 
   _gcs_are_young(true),
-  _young_pause_num(0),
-  _mixed_pause_num(0),
 
   _during_marking(false),
   _in_marking_window(false),
@@ -197,8 +184,6 @@
 
   _recent_avg_pause_time_ratio(0.0),
 
-  _all_full_gc_times_ms(new NumberSeq()),
-
   _initiate_conc_mark_if_possible(false),
   _during_initial_mark_pause(false),
   _last_young_gc(false),
@@ -851,7 +836,7 @@
   double full_gc_time_sec = end_sec - _cur_collection_start_sec;
   double full_gc_time_ms = full_gc_time_sec * 1000.0;
 
-  _all_full_gc_times_ms->add(full_gc_time_ms);
+  _trace_gen1_time_data.record_full_collection(full_gc_time_ms);
 
   update_recent_gc_times(end_sec, full_gc_time_ms);
 
@@ -886,9 +871,8 @@
                                                       size_t start_used) {
   if (G1Log::finer()) {
     gclog_or_tty->stamp(PrintGCTimeStamps);
-    gclog_or_tty->print("[GC pause (%s) (%s)",
-      GCCause::to_string(_g1->gc_cause()),
-      gcs_are_young() ? "young" : "mixed");
+    gclog_or_tty->print("[%s", (const char*)GCCauseString("GC pause", _g1->gc_cause())
+      .append(gcs_are_young() ? " (young)" : " (mixed)"));
   }
 
   // We only need to do this here as the policy will only be applied
@@ -901,7 +885,7 @@
                  _g1->used(), _g1->recalculate_used()));
 
   double s_w_t_ms = (start_time_sec - _stop_world_start) * 1000.0;
-  _all_stop_world_times_ms->add(s_w_t_ms);
+  _trace_gen0_time_data.record_start_collection(s_w_t_ms);
   _stop_world_start = 0.0;
 
   _cur_collection_start_sec = start_time_sec;
@@ -938,11 +922,6 @@
   }
 #endif
 
-  for (int i = 0; i < _aux_num; ++i) {
-    _cur_aux_times_ms[i] = 0.0;
-    _cur_aux_times_set[i] = false;
-  }
-
   // This is initialized to zero here and is set during the evacuation
   // pause if we actually waited for the root region scanning to finish.
   _root_region_scan_wait_time_ms = 0.0;
@@ -991,7 +970,7 @@
 void G1CollectorPolicy::record_concurrent_pause() {
   if (_stop_world_start > 0.0) {
     double yield_ms = (os::elapsedTime() - _stop_world_start) * 1000.0;
-    _all_yield_times_ms->add(yield_ms);
+    _trace_gen0_time_data.record_yield_time(yield_ms);
   }
 }
 
@@ -1010,7 +989,8 @@
 
 void G1CollectorPolicy::print_par_stats(int level,
                                         const char* str,
-                                        double* data) {
+                                        double* data,
+                                        bool showDecimals) {
   double min = data[0], max = data[0];
   double total = 0.0;
   LineBuffer buf(level);
@@ -1023,7 +1003,11 @@
       max = val;
     total += val;
     if (G1Log::finest()) {
-      buf.append("  %.1lf", val);
+      if (showDecimals) {
+        buf.append("  %.1lf", val);
+      } else {
+        buf.append("  %d", (int)val);
+      }
     }
   }
 
@@ -1031,36 +1015,26 @@
     buf.append_and_print_cr("");
   }
   double avg = total / (double) no_of_gc_threads();
-  buf.append_and_print_cr(" Avg: %.1lf Min: %.1lf Max: %.1lf Diff: %.1lf]",
-    avg, min, max, max - min);
-}
-
-void G1CollectorPolicy::print_par_sizes(int level,
-                                        const char* str,
-                                        double* data) {
-  double min = data[0], max = data[0];
-  double total = 0.0;
-  LineBuffer buf(level);
-  buf.append("[%s :", str);
-  for (uint i = 0; i < no_of_gc_threads(); ++i) {
-    double val = data[i];
-    if (val < min)
-      min = val;
-    if (val > max)
-      max = val;
-    total += val;
-    buf.append(" %d", (int) val);
+  if (showDecimals) {
+    buf.append_and_print_cr(" Min: %.1lf, Avg: %.1lf, Max: %.1lf, Diff: %.1lf, Sum: %.1lf]",
+      min, avg, max, max - min, total);
+  } else {
+    buf.append_and_print_cr(" Min: %d, Avg: %d, Max: %d, Diff: %d, Sum: %d]",
+      (int)min, (int)avg, (int)max, (int)max - (int)min, (int)total);
   }
-  buf.append_and_print_cr("");
-  double avg = total / (double) no_of_gc_threads();
-  buf.append_and_print_cr(" Sum: %d, Avg: %d, Min: %d, Max: %d, Diff: %d]",
-    (int)total, (int)avg, (int)min, (int)max, (int)max - (int)min);
 }
 
 void G1CollectorPolicy::print_stats(int level,
                                     const char* str,
                                     double value) {
-  LineBuffer(level).append_and_print_cr("[%s: %5.1lf ms]", str, value);
+  LineBuffer(level).append_and_print_cr("[%s: %.1lf ms]", str, value);
+}
+
+void G1CollectorPolicy::print_stats(int level,
+                                    const char* str,
+                                    double value,
+                                    int workers) {
+  LineBuffer(level).append_and_print_cr("[%s: %.1lf ms, GC Workers: %d]", str, value, workers);
 }
 
 void G1CollectorPolicy::print_stats(int level,
@@ -1203,21 +1177,6 @@
   _mmu_tracker->add_pause(end_time_sec - elapsed_ms/1000.0,
                           end_time_sec, false);
 
-  // This assert is exempted when we're doing parallel collection pauses,
-  // because the fragmentation caused by the parallel GC allocation buffers
-  // can lead to more memory being used during collection than was used
-  // before. Best leave this out until the fragmentation problem is fixed.
-  // Pauses in which evacuation failed can also lead to negative
-  // collections, since no space is reclaimed from a region containing an
-  // object whose evacuation failed.
-  // Further, we're now always doing parallel collection.  But I'm still
-  // leaving this here as a placeholder for a more precise assertion later.
-  // (DLD, 10/05.)
-  assert((true || parallel) // Always using GC LABs now.
-         || _g1->evacuation_failed()
-         || _cur_collection_pause_used_at_start_bytes >= cur_used_bytes,
-         "Negative collection");
-
   size_t freed_bytes =
     _cur_collection_pause_used_at_start_bytes - cur_used_bytes;
   size_t surviving_bytes = _collection_set_bytes_used_before - freed_bytes;
@@ -1265,44 +1224,15 @@
   other_time_ms -= _cur_clear_ct_time_ms;
 
   // TraceGen0Time and TraceGen1Time summary info updating.
-  _all_pause_times_ms->add(elapsed_ms);
 
   if (update_stats) {
-    _summary->record_total_time_ms(elapsed_ms);
-    _summary->record_other_time_ms(other_time_ms);
-
-    MainBodySummary* body_summary = _summary->main_body_summary();
-    assert(body_summary != NULL, "should not be null!");
-
-    body_summary->record_root_region_scan_wait_time_ms(
-                                               _root_region_scan_wait_time_ms);
-    body_summary->record_ext_root_scan_time_ms(ext_root_scan_time);
-    body_summary->record_satb_filtering_time_ms(satb_filtering_time);
-    body_summary->record_update_rs_time_ms(update_rs_time);
-    body_summary->record_scan_rs_time_ms(scan_rs_time);
-    body_summary->record_obj_copy_time_ms(obj_copy_time);
-
-    if (parallel) {
-      body_summary->record_parallel_time_ms(_cur_collection_par_time_ms);
-      body_summary->record_termination_time_ms(termination_time);
+    double parallel_known_time = known_time + termination_time;
+    double parallel_other_time = _cur_collection_par_time_ms - parallel_known_time;
 
-      double parallel_known_time = known_time + termination_time;
-      double parallel_other_time = _cur_collection_par_time_ms - parallel_known_time;
-      body_summary->record_parallel_other_time_ms(parallel_other_time);
-    }
-
-    body_summary->record_clear_ct_time_ms(_cur_clear_ct_time_ms);
-
-    // We exempt parallel collection from this check because Alloc Buffer
-    // fragmentation can produce negative collections.  Same with evac
-    // failure.
-    // Further, we're now always doing parallel collection.  But I'm still
-    // leaving this here as a placeholder for a more precise assertion later.
-    // (DLD, 10/05.
-    assert((true || parallel)
-           || _g1->evacuation_failed()
-           || surviving_bytes <= _collection_set_bytes_used_before,
-           "Or else negative collection!");
+    _trace_gen0_time_data.record_end_collection(
+      elapsed_ms, other_time_ms, _root_region_scan_wait_time_ms, _cur_collection_par_time_ms,
+      ext_root_scan_time, satb_filtering_time, update_rs_time, scan_rs_time, obj_copy_time,
+      termination_time, parallel_other_time, _cur_clear_ct_time_ms);
 
     // this is where we update the allocation rate of the application
     double app_time_ms =
@@ -1355,12 +1285,6 @@
     }
   }
 
-  for (int i = 0; i < _aux_num; ++i) {
-    if (_cur_aux_times_set[i]) {
-      _all_aux_times_ms[i].add(_cur_aux_times_ms[i]);
-    }
-  }
-
   if (G1Log::finer()) {
     bool print_marking_info =
       _g1->mark_in_progress() && !last_pause_included_initial_mark;
@@ -1373,7 +1297,7 @@
       print_stats(1, "Root Region Scan Waiting", _root_region_scan_wait_time_ms);
     }
     if (parallel) {
-      print_stats(1, "Parallel Time", _cur_collection_par_time_ms);
+      print_stats(1, "Parallel Time", _cur_collection_par_time_ms, no_of_gc_threads);
       print_par_stats(2, "GC Worker Start", _par_last_gc_worker_start_times_ms);
       print_par_stats(2, "Ext Root Scanning", _par_last_ext_root_scan_times_ms);
       if (print_marking_info) {
@@ -1381,13 +1305,15 @@
       }
       print_par_stats(2, "Update RS", _par_last_update_rs_times_ms);
       if (G1Log::finest()) {
-        print_par_sizes(3, "Processed Buffers", _par_last_update_rs_processed_buffers);
+        print_par_stats(3, "Processed Buffers", _par_last_update_rs_processed_buffers,
+          false /* showDecimals */);
       }
       print_par_stats(2, "Scan RS", _par_last_scan_rs_times_ms);
       print_par_stats(2, "Object Copy", _par_last_obj_copy_times_ms);
       print_par_stats(2, "Termination", _par_last_termination_times_ms);
       if (G1Log::finest()) {
-        print_par_sizes(3, "Termination Attempts", _par_last_termination_attempts);
+        print_par_stats(3, "Termination Attempts", _par_last_termination_attempts,
+          false /* showDecimals */);
       }
 
       for (int i = 0; i < _parallel_gc_threads; i++) {
@@ -1440,14 +1366,6 @@
     print_stats(2, "Free CSet",
                    (_recorded_young_free_cset_time_ms +
                     _recorded_non_young_free_cset_time_ms));
-
-    for (int i = 0; i < _aux_num; ++i) {
-      if (_cur_aux_times_set[i]) {
-        char buffer[96];
-        sprintf(buffer, "Aux%d", i);
-        print_stats(1, buffer, _cur_aux_times_ms[i]);
-      }
-    }
   }
 
   bool new_in_marking_window = _in_marking_window;
@@ -1601,9 +1519,9 @@
   _collectionSetChooser->verify();
 }
 
-#define EXT_SIZE_FORMAT "%d%s"
+#define EXT_SIZE_FORMAT "%.1f%s"
 #define EXT_SIZE_PARAMS(bytes)                                  \
-  byte_size_in_proper_unit((bytes)),                            \
+  byte_size_in_proper_unit((double)(bytes)),                    \
   proper_unit_for_byte_size((bytes))
 
 void G1CollectorPolicy::print_heap_transition() {
@@ -1812,179 +1730,9 @@
   _g1->collection_set_iterate(&cs_closure);
 }
 
-void G1CollectorPolicy::print_summary(int level,
-                                      const char* str,
-                                      NumberSeq* seq) const {
-  double sum = seq->sum();
-  LineBuffer(level + 1).append_and_print_cr("%-24s = %8.2lf s (avg = %8.2lf ms)",
-                str, sum / 1000.0, seq->avg());
-}
-
-void G1CollectorPolicy::print_summary_sd(int level,
-                                         const char* str,
-                                         NumberSeq* seq) const {
-  print_summary(level, str, seq);
-  LineBuffer(level + 6).append_and_print_cr("(num = %5d, std dev = %8.2lf ms, max = %8.2lf ms)",
-                seq->num(), seq->sd(), seq->maximum());
-}
-
-void G1CollectorPolicy::check_other_times(int level,
-                                        NumberSeq* other_times_ms,
-                                        NumberSeq* calc_other_times_ms) const {
-  bool should_print = false;
-  LineBuffer buf(level + 2);
-
-  double max_sum = MAX2(fabs(other_times_ms->sum()),
-                        fabs(calc_other_times_ms->sum()));
-  double min_sum = MIN2(fabs(other_times_ms->sum()),
-                        fabs(calc_other_times_ms->sum()));
-  double sum_ratio = max_sum / min_sum;
-  if (sum_ratio > 1.1) {
-    should_print = true;
-    buf.append_and_print_cr("## CALCULATED OTHER SUM DOESN'T MATCH RECORDED ###");
-  }
-
-  double max_avg = MAX2(fabs(other_times_ms->avg()),
-                        fabs(calc_other_times_ms->avg()));
-  double min_avg = MIN2(fabs(other_times_ms->avg()),
-                        fabs(calc_other_times_ms->avg()));
-  double avg_ratio = max_avg / min_avg;
-  if (avg_ratio > 1.1) {
-    should_print = true;
-    buf.append_and_print_cr("## CALCULATED OTHER AVG DOESN'T MATCH RECORDED ###");
-  }
-
-  if (other_times_ms->sum() < -0.01) {
-    buf.append_and_print_cr("## RECORDED OTHER SUM IS NEGATIVE ###");
-  }
-
-  if (other_times_ms->avg() < -0.01) {
-    buf.append_and_print_cr("## RECORDED OTHER AVG IS NEGATIVE ###");
-  }
-
-  if (calc_other_times_ms->sum() < -0.01) {
-    should_print = true;
-    buf.append_and_print_cr("## CALCULATED OTHER SUM IS NEGATIVE ###");
-  }
-
-  if (calc_other_times_ms->avg() < -0.01) {
-    should_print = true;
-    buf.append_and_print_cr("## CALCULATED OTHER AVG IS NEGATIVE ###");
-  }
-
-  if (should_print)
-    print_summary(level, "Other(Calc)", calc_other_times_ms);
-}
-
-void G1CollectorPolicy::print_summary(PauseSummary* summary) const {
-  bool parallel = G1CollectedHeap::use_parallel_gc_threads();
-  MainBodySummary*    body_summary = summary->main_body_summary();
-  if (summary->get_total_seq()->num() > 0) {
-    print_summary_sd(0, "Evacuation Pauses", summary->get_total_seq());
-    if (body_summary != NULL) {
-      print_summary(1, "Root Region Scan Wait", body_summary->get_root_region_scan_wait_seq());
-      if (parallel) {
-        print_summary(1, "Parallel Time", body_summary->get_parallel_seq());
-        print_summary(2, "Ext Root Scanning", body_summary->get_ext_root_scan_seq());
-        print_summary(2, "SATB Filtering", body_summary->get_satb_filtering_seq());
-        print_summary(2, "Update RS", body_summary->get_update_rs_seq());
-        print_summary(2, "Scan RS", body_summary->get_scan_rs_seq());
-        print_summary(2, "Object Copy", body_summary->get_obj_copy_seq());
-        print_summary(2, "Termination", body_summary->get_termination_seq());
-        print_summary(2, "Parallel Other", body_summary->get_parallel_other_seq());
-        {
-          NumberSeq* other_parts[] = {
-            body_summary->get_ext_root_scan_seq(),
-            body_summary->get_satb_filtering_seq(),
-            body_summary->get_update_rs_seq(),
-            body_summary->get_scan_rs_seq(),
-            body_summary->get_obj_copy_seq(),
-            body_summary->get_termination_seq()
-          };
-          NumberSeq calc_other_times_ms(body_summary->get_parallel_seq(),
-                                        6, other_parts);
-          check_other_times(2, body_summary->get_parallel_other_seq(),
-                            &calc_other_times_ms);
-        }
-      } else {
-        print_summary(1, "Ext Root Scanning", body_summary->get_ext_root_scan_seq());
-        print_summary(1, "SATB Filtering", body_summary->get_satb_filtering_seq());
-        print_summary(1, "Update RS", body_summary->get_update_rs_seq());
-        print_summary(1, "Scan RS", body_summary->get_scan_rs_seq());
-        print_summary(1, "Object Copy", body_summary->get_obj_copy_seq());
-      }
-    }
-    print_summary(1, "Clear CT", body_summary->get_clear_ct_seq());
-    print_summary(1, "Other", summary->get_other_seq());
-    {
-      if (body_summary != NULL) {
-        NumberSeq calc_other_times_ms;
-        if (parallel) {
-          // parallel
-          NumberSeq* other_parts[] = {
-            body_summary->get_root_region_scan_wait_seq(),
-            body_summary->get_parallel_seq(),
-            body_summary->get_clear_ct_seq()
-          };
-          calc_other_times_ms = NumberSeq(summary->get_total_seq(),
-                                          3, other_parts);
-        } else {
-          // serial
-          NumberSeq* other_parts[] = {
-            body_summary->get_root_region_scan_wait_seq(),
-            body_summary->get_update_rs_seq(),
-            body_summary->get_ext_root_scan_seq(),
-            body_summary->get_satb_filtering_seq(),
-            body_summary->get_scan_rs_seq(),
-            body_summary->get_obj_copy_seq()
-          };
-          calc_other_times_ms = NumberSeq(summary->get_total_seq(),
-                                          6, other_parts);
-        }
-        check_other_times(1,  summary->get_other_seq(), &calc_other_times_ms);
-      }
-    }
-  } else {
-    LineBuffer(1).append_and_print_cr("none");
-  }
-  LineBuffer(0).append_and_print_cr("");
-}
-
 void G1CollectorPolicy::print_tracing_info() const {
-  if (TraceGen0Time) {
-    gclog_or_tty->print_cr("ALL PAUSES");
-    print_summary_sd(0, "Total", _all_pause_times_ms);
-    gclog_or_tty->print_cr("");
-    gclog_or_tty->print_cr("");
-    gclog_or_tty->print_cr("   Young GC Pauses: %8d", _young_pause_num);
-    gclog_or_tty->print_cr("   Mixed GC Pauses: %8d", _mixed_pause_num);
-    gclog_or_tty->print_cr("");
-
-    gclog_or_tty->print_cr("EVACUATION PAUSES");
-    print_summary(_summary);
-
-    gclog_or_tty->print_cr("MISC");
-    print_summary_sd(0, "Stop World", _all_stop_world_times_ms);
-    print_summary_sd(0, "Yields", _all_yield_times_ms);
-    for (int i = 0; i < _aux_num; ++i) {
-      if (_all_aux_times_ms[i].num() > 0) {
-        char buffer[96];
-        sprintf(buffer, "Aux%d", i);
-        print_summary_sd(0, buffer, &_all_aux_times_ms[i]);
-      }
-    }
-  }
-  if (TraceGen1Time) {
-    if (_all_full_gc_times_ms->num() > 0) {
-      gclog_or_tty->print("\n%4d full_gcs: total time = %8.2f s",
-                 _all_full_gc_times_ms->num(),
-                 _all_full_gc_times_ms->sum() / 1000.0);
-      gclog_or_tty->print_cr(" (avg = %8.2fms).", _all_full_gc_times_ms->avg());
-      gclog_or_tty->print_cr("                     [std. dev = %8.2f ms, max = %8.2f ms]",
-                    _all_full_gc_times_ms->sd(),
-                    _all_full_gc_times_ms->maximum());
-    }
-  }
+  _trace_gen0_time_data.print();
+  _trace_gen1_time_data.print();
 }
 
 void G1CollectorPolicy::print_yg_surv_rate_info() const {
@@ -2535,9 +2283,9 @@
   _last_gc_was_young = gcs_are_young() ? true : false;
 
   if (_last_gc_was_young) {
-    ++_young_pause_num;
+    _trace_gen0_time_data.increment_young_collection_count();
   } else {
-    ++_mixed_pause_num;
+    _trace_gen0_time_data.increment_mixed_collection_count();
   }
 
   // The young list is laid with the survivor regions from the previous
@@ -2694,3 +2442,133 @@
   _recorded_non_young_cset_choice_time_ms =
     (non_young_end_time_sec - non_young_start_time_sec) * 1000.0;
 }
+
+void TraceGen0TimeData::record_start_collection(double time_to_stop_the_world_ms) {
+  if(TraceGen0Time) {
+    _all_stop_world_times_ms.add(time_to_stop_the_world_ms);
+  }
+}
+
+void TraceGen0TimeData::record_yield_time(double yield_time_ms) {
+  if(TraceGen0Time) {
+    _all_yield_times_ms.add(yield_time_ms);
+  }
+}
+
+void TraceGen0TimeData::record_end_collection(
+     double total_ms,
+     double other_ms,
+     double root_region_scan_wait_ms,
+     double parallel_ms,
+     double ext_root_scan_ms,
+     double satb_filtering_ms,
+     double update_rs_ms,
+     double scan_rs_ms,
+     double obj_copy_ms,
+     double termination_ms,
+     double parallel_other_ms,
+     double clear_ct_ms)
+{
+  if(TraceGen0Time) {
+    _total.add(total_ms);
+    _other.add(other_ms);
+    _root_region_scan_wait.add(root_region_scan_wait_ms);
+    _parallel.add(parallel_ms);
+    _ext_root_scan.add(ext_root_scan_ms);
+    _satb_filtering.add(satb_filtering_ms);
+    _update_rs.add(update_rs_ms);
+    _scan_rs.add(scan_rs_ms);
+    _obj_copy.add(obj_copy_ms);
+    _termination.add(termination_ms);
+    _parallel_other.add(parallel_other_ms);
+    _clear_ct.add(clear_ct_ms);
+  }
+}
+
+void TraceGen0TimeData::increment_young_collection_count() {
+  if(TraceGen0Time) {
+    ++_young_pause_num;
+  }
+}
+
+void TraceGen0TimeData::increment_mixed_collection_count() {
+  if(TraceGen0Time) {
+    ++_mixed_pause_num;
+  }
+}
+
+void TraceGen0TimeData::print_summary(int level,
+                                      const char* str,
+                                      const NumberSeq* seq) const {
+  double sum = seq->sum();
+  LineBuffer(level + 1).append_and_print_cr("%-24s = %8.2lf s (avg = %8.2lf ms)",
+                str, sum / 1000.0, seq->avg());
+}
+
+void TraceGen0TimeData::print_summary_sd(int level,
+                                         const char* str,
+                                         const NumberSeq* seq) const {
+  print_summary(level, str, seq);
+  LineBuffer(level + 6).append_and_print_cr("(num = %5d, std dev = %8.2lf ms, max = %8.2lf ms)",
+                seq->num(), seq->sd(), seq->maximum());
+}
+
+void TraceGen0TimeData::print() const {
+  if (!TraceGen0Time) {
+    return;
+  }
+
+  gclog_or_tty->print_cr("ALL PAUSES");
+  print_summary_sd(0, "Total", &_total);
+  gclog_or_tty->print_cr("");
+  gclog_or_tty->print_cr("");
+  gclog_or_tty->print_cr("   Young GC Pauses: %8d", _young_pause_num);
+  gclog_or_tty->print_cr("   Mixed GC Pauses: %8d", _mixed_pause_num);
+  gclog_or_tty->print_cr("");
+
+  gclog_or_tty->print_cr("EVACUATION PAUSES");
+
+  if (_young_pause_num == 0 && _mixed_pause_num == 0) {
+    gclog_or_tty->print_cr("none");
+  } else {
+    print_summary_sd(0, "Evacuation Pauses", &_total);
+    print_summary(1, "Root Region Scan Wait", &_root_region_scan_wait);
+    print_summary(1, "Parallel Time", &_parallel);
+    print_summary(2, "Ext Root Scanning", &_ext_root_scan);
+    print_summary(2, "SATB Filtering", &_satb_filtering);
+    print_summary(2, "Update RS", &_update_rs);
+    print_summary(2, "Scan RS", &_scan_rs);
+    print_summary(2, "Object Copy", &_obj_copy);
+    print_summary(2, "Termination", &_termination);
+    print_summary(2, "Parallel Other", &_parallel_other);
+    print_summary(1, "Clear CT", &_clear_ct);
+    print_summary(1, "Other", &_other);
+  }
+  gclog_or_tty->print_cr("");
+
+  gclog_or_tty->print_cr("MISC");
+  print_summary_sd(0, "Stop World", &_all_stop_world_times_ms);
+  print_summary_sd(0, "Yields", &_all_yield_times_ms);
+}
+
+void TraceGen1TimeData::record_full_collection(double full_gc_time_ms) {
+  if (TraceGen1Time) {
+    _all_full_gc_times.add(full_gc_time_ms);
+  }
+}
+
+void TraceGen1TimeData::print() const {
+  if (!TraceGen1Time) {
+    return;
+  }
+
+  if (_all_full_gc_times.num() > 0) {
+    gclog_or_tty->print("\n%4d full_gcs: total time = %8.2f s",
+      _all_full_gc_times.num(),
+      _all_full_gc_times.sum() / 1000.0);
+    gclog_or_tty->print_cr(" (avg = %8.2fms).", _all_full_gc_times.avg());
+    gclog_or_tty->print_cr("                     [std. dev = %8.2f ms, max = %8.2f ms]",
+      _all_full_gc_times.sd(),
+      _all_full_gc_times.maximum());
+  }
+}
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp
--- a/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -37,49 +37,62 @@
 class HeapRegion;
 class CollectionSetChooser;
 
-// Yes, this is a bit unpleasant... but it saves replicating the same thing
-// over and over again and introducing subtle problems through small typos and
-// cutting and pasting mistakes. The macros below introduces a number
-// sequnce into the following two classes and the methods that access it.
+// TraceGen0Time collects data on _both_ young and mixed evacuation pauses
+// (the latter may contain non-young regions - i.e. regions that are
+// technically in Gen1) while TraceGen1Time collects data about full GCs.
+class TraceGen0TimeData : public CHeapObj {
+ private:
+  unsigned  _young_pause_num;
+  unsigned  _mixed_pause_num;
+
+  NumberSeq _all_stop_world_times_ms;
+  NumberSeq _all_yield_times_ms;
 
-#define define_num_seq(name)                                                  \
-private:                                                                      \
-  NumberSeq _all_##name##_times_ms;                                           \
-public:                                                                       \
-  void record_##name##_time_ms(double ms) {                                   \
-    _all_##name##_times_ms.add(ms);                                           \
-  }                                                                           \
-  NumberSeq* get_##name##_seq() {                                             \
-    return &_all_##name##_times_ms;                                           \
-  }
+  NumberSeq _total;
+  NumberSeq _other;
+  NumberSeq _root_region_scan_wait;
+  NumberSeq _parallel;
+  NumberSeq _ext_root_scan;
+  NumberSeq _satb_filtering;
+  NumberSeq _update_rs;
+  NumberSeq _scan_rs;
+  NumberSeq _obj_copy;
+  NumberSeq _termination;
+  NumberSeq _parallel_other;
+  NumberSeq _clear_ct;
 
-class MainBodySummary;
-
-class PauseSummary: public CHeapObj {
-  define_num_seq(total)
-    define_num_seq(other)
+  void print_summary (int level, const char* str, const NumberSeq* seq) const;
+  void print_summary_sd (int level, const char* str, const NumberSeq* seq) const;
 
 public:
-  virtual MainBodySummary*    main_body_summary()    { return NULL; }
+   TraceGen0TimeData() : _young_pause_num(0), _mixed_pause_num(0) {};
+  void record_start_collection(double time_to_stop_the_world_ms);
+  void record_yield_time(double yield_time_ms);
+  void record_end_collection(
+     double total_ms,
+     double other_ms,
+     double root_region_scan_wait_ms,
+     double parallel_ms,
+     double ext_root_scan_ms,
+     double satb_filtering_ms,
+     double update_rs_ms,
+     double scan_rs_ms,
+     double obj_copy_ms,
+     double termination_ms,
+     double parallel_other_ms,
+     double clear_ct_ms);
+  void increment_young_collection_count();
+  void increment_mixed_collection_count();
+  void print() const;
 };
 
-class MainBodySummary: public CHeapObj {
-  define_num_seq(root_region_scan_wait)
-  define_num_seq(parallel) // parallel only
-    define_num_seq(ext_root_scan)
-    define_num_seq(satb_filtering)
-    define_num_seq(update_rs)
-    define_num_seq(scan_rs)
-    define_num_seq(obj_copy)
-    define_num_seq(termination) // parallel only
-    define_num_seq(parallel_other) // parallel only
-  define_num_seq(clear_ct)
-};
+class TraceGen1TimeData : public CHeapObj {
+ private:
+  NumberSeq _all_full_gc_times;
 
-class Summary: public PauseSummary,
-               public MainBodySummary {
-public:
-  virtual MainBodySummary*    main_body_summary()    { return this; }
+ public:
+  void record_full_collection(double full_gc_time_ms);
+  void print() const;
 };
 
 // There are three command line options related to the young gen size:
@@ -199,19 +212,10 @@
   TruncatedSeq* _concurrent_mark_remark_times_ms;
   TruncatedSeq* _concurrent_mark_cleanup_times_ms;
 
-  Summary*           _summary;
+  TraceGen0TimeData _trace_gen0_time_data;
+  TraceGen1TimeData _trace_gen1_time_data;
 
-  NumberSeq* _all_pause_times_ms;
-  NumberSeq* _all_full_gc_times_ms;
   double _stop_world_start;
-  NumberSeq* _all_stop_world_times_ms;
-  NumberSeq* _all_yield_times_ms;
-
-  int        _aux_num;
-  NumberSeq* _all_aux_times_ms;
-  double*    _cur_aux_start_times_ms;
-  double*    _cur_aux_times_ms;
-  bool*      _cur_aux_times_set;
 
   double* _par_last_gc_worker_start_times_ms;
   double* _par_last_ext_root_scan_times_ms;
@@ -243,9 +247,6 @@
 
   bool                  _last_gc_was_young;
 
-  unsigned              _young_pause_num;
-  unsigned              _mixed_pause_num;
-
   bool                  _during_marking;
   bool                  _in_marking_window;
   bool                  _in_marking_window_im;
@@ -552,19 +553,10 @@
 
 private:
   void print_stats(int level, const char* str, double value);
+  void print_stats(int level, const char* str, double value, int workers);
   void print_stats(int level, const char* str, int value);
 
-  void print_par_stats(int level, const char* str, double* data);
-  void print_par_sizes(int level, const char* str, double* data);
-
-  void check_other_times(int level,
-                         NumberSeq* other_times_ms,
-                         NumberSeq* calc_other_times_ms) const;
-
-  void print_summary (PauseSummary* stats) const;
-
-  void print_summary (int level, const char* str, NumberSeq* seq) const;
-  void print_summary_sd (int level, const char* str, NumberSeq* seq) const;
+  void print_par_stats(int level, const char* str, double* data, bool showDecimals = true);
 
   double avg_value (double* data);
   double max_value (double* data);
@@ -745,10 +737,6 @@
     return _bytes_in_collection_set_before_gc;
   }
 
-  unsigned calc_gc_alloc_time_stamp() {
-    return _all_pause_times_ms->num() + 1;
-  }
-
   // This should be called after the heap is resized.
   void record_new_heap_size(uint new_number_of_regions);
 
@@ -867,18 +855,6 @@
     _cur_collection_code_root_fixup_time_ms = ms;
   }
 
-  void record_aux_start_time(int i) {
-    guarantee(i < _aux_num, "should be within range");
-    _cur_aux_start_times_ms[i] = os::elapsedTime() * 1000.0;
-  }
-
-  void record_aux_end_time(int i) {
-    guarantee(i < _aux_num, "should be within range");
-    double ms = os::elapsedTime() * 1000.0 - _cur_aux_start_times_ms[i];
-    _cur_aux_times_set[i] = true;
-    _cur_aux_times_ms[i] += ms;
-  }
-
   void record_ref_proc_time(double ms) {
     _cur_ref_proc_time_ms = ms;
   }
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp
--- a/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1106,7 +1106,8 @@
 void HeapRegionRemSet::setup_remset_size() {
   // Setup sparse and fine-grain tables sizes.
   // table_size = base * (log(region_size / 1M) + 1)
-  int region_size_log_mb = MAX2((int)HeapRegion::LogOfHRGrainBytes - (int)LOG_M, 0);
+  const int LOG_M = 20;
+  int region_size_log_mb = MAX2(HeapRegion::LogOfHRGrainBytes - LOG_M, 0);
   if (FLAG_IS_DEFAULT(G1RSetSparseRegionEntries)) {
     G1RSetSparseRegionEntries = G1RSetSparseRegionEntriesBase * (region_size_log_mb + 1);
   }
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/g1/vm_operations_g1.cpp
--- a/src/share/vm/gc_implementation/g1/vm_operations_g1.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/g1/vm_operations_g1.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -42,6 +42,7 @@
 
 void VM_G1CollectForAllocation::doit() {
   G1CollectedHeap* g1h = G1CollectedHeap::heap();
+  GCCauseSetter x(g1h, _gc_cause);
   _result = g1h->satisfy_failed_allocation(_word_size, &_pause_succeeded);
   assert(_result == NULL || _pause_succeeded,
          "if we get back a result, the pause should have succeeded");
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/parNew/parNewGeneration.cpp
--- a/src/share/vm/gc_implementation/parNew/parNewGeneration.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/parNew/parNewGeneration.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -916,7 +916,7 @@
     size_policy->minor_collection_begin();
   }
 
-  TraceTime t1("GC", PrintGC && !PrintGCDetails, true, gclog_or_tty);
+  TraceTime t1(GCCauseString("GC", gch->gc_cause()), PrintGC && !PrintGCDetails, true, gclog_or_tty);
   // Capture heap used before collection (for printing).
   size_t gch_prev_used = gch->used();
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -160,16 +160,10 @@
 
   {
     HandleMark hm;
-    const bool is_system_gc = gc_cause == GCCause::_java_lang_system_gc;
-    // This is useful for debugging but don't change the output the
-    // the customer sees.
-    const char* gc_cause_str = "Full GC";
-    if (is_system_gc && PrintGCDetails) {
-      gc_cause_str = "Full GC (System)";
-    }
+
     gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    TraceTime t1(gc_cause_str, PrintGC, !PrintGCDetails, gclog_or_tty);
+    TraceTime t1(GCCauseString("Full GC", gc_cause), PrintGC, !PrintGCDetails, gclog_or_tty);
     TraceCollectorStats tcs(counters());
     TraceMemoryManagerStats tms(true /* Full GC */,gc_cause);
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -2047,17 +2047,9 @@
     gc_task_manager()->task_idle_workers();
     heap->set_par_threads(gc_task_manager()->active_workers());
 
-    const bool is_system_gc = gc_cause == GCCause::_java_lang_system_gc;
-
-    // This is useful for debugging but don't change the output the
-    // the customer sees.
-    const char* gc_cause_str = "Full GC";
-    if (is_system_gc && PrintGCDetails) {
-      gc_cause_str = "Full GC (System)";
-    }
     gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    TraceTime t1(gc_cause_str, PrintGC, !PrintGCDetails, gclog_or_tty);
+    TraceTime t1(GCCauseString("Full GC", gc_cause), PrintGC, !PrintGCDetails, gclog_or_tty);
     TraceCollectorStats tcs(counters());
     TraceMemoryManagerStats tms(true /* Full GC */,gc_cause);
 
@@ -2090,7 +2082,8 @@
     }
 #endif  // #ifndef PRODUCT
 
-    bool max_on_system_gc = UseMaximumCompactionOnSystemGC && is_system_gc;
+    bool max_on_system_gc = UseMaximumCompactionOnSystemGC
+      && gc_cause == GCCause::_java_lang_system_gc;
     summary_phase(vmthread_cm, maximum_heap_compaction || max_on_system_gc);
 
     COMPILER2_PRESENT(assert(DerivedPointerTable::is_active(), "Sanity"));
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -325,7 +325,7 @@
 
     gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    TraceTime t1("GC", PrintGC, !PrintGCDetails, gclog_or_tty);
+    TraceTime t1(GCCauseString("GC", gc_cause), PrintGC, !PrintGCDetails, gclog_or_tty);
     TraceCollectorStats tcs(counters());
     TraceMemoryManagerStats tms(false /* not full GC */,gc_cause);
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/shared/gcUtil.cpp
--- a/src/share/vm/gc_implementation/shared/gcUtil.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/shared/gcUtil.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -31,9 +31,15 @@
                                                         float average) {
   // We smooth the samples by not using weight() directly until we've
   // had enough data to make it meaningful. We'd like the first weight
-  // used to be 1, the second to be 1/2, etc until we have 100/weight
-  // samples.
-  unsigned count_weight = 100/count();
+  // used to be 1, the second to be 1/2, etc until we have
+  // OLD_THRESHOLD/weight samples.
+  unsigned count_weight = 0;
+
+  // Avoid division by zero if the counter wraps (7158457)
+  if (!is_old()) {
+    count_weight = OLD_THRESHOLD/count();
+  }
+
   unsigned adaptive_weight = (MAX2(weight(), count_weight));
 
   float new_avg = exp_avg(average, new_sample, adaptive_weight);
@@ -43,8 +49,6 @@
 
 void AdaptiveWeightedAverage::sample(float new_sample) {
   increment_count();
-  assert(count() != 0,
-         "Wraparound -- history would be incorrectly discarded");
 
   // Compute the new weighted average
   float new_avg = compute_adaptive_average(new_sample, average());
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_implementation/shared/gcUtil.hpp
--- a/src/share/vm/gc_implementation/shared/gcUtil.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_implementation/shared/gcUtil.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -50,11 +50,20 @@
   unsigned         _weight;         // The weight used to smooth the averages
                                     //   A higher weight favors the most
                                     //   recent data.
+  bool             _is_old;         // Has enough historical data
+
+  const static unsigned OLD_THRESHOLD = 100;
 
  protected:
   float            _last_sample;    // The last value sampled.
 
-  void  increment_count()       { _sample_count++;       }
+  void  increment_count() {
+    _sample_count++;
+    if (!_is_old && _sample_count > OLD_THRESHOLD) {
+      _is_old = true;
+    }
+  }
+
   void  set_average(float avg)  { _average = avg;        }
 
   // Helper function, computes an adaptive weighted average
@@ -64,13 +73,15 @@
  public:
   // Input weight must be between 0 and 100
   AdaptiveWeightedAverage(unsigned weight, float avg = 0.0) :
-    _average(avg), _sample_count(0), _weight(weight), _last_sample(0.0) {
+    _average(avg), _sample_count(0), _weight(weight), _last_sample(0.0),
+    _is_old(false) {
   }
 
   void clear() {
     _average = 0;
     _sample_count = 0;
     _last_sample = 0;
+    _is_old = false;
   }
 
   // Useful for modifying static structures after startup.
@@ -84,7 +95,8 @@
   float    average() const       { return _average;       }
   unsigned weight()  const       { return _weight;        }
   unsigned count()   const       { return _sample_count;  }
-  float    last_sample() const   { return _last_sample; }
+  float    last_sample() const   { return _last_sample;   }
+  bool     is_old()  const       { return _is_old;        }
 
   // Update data with a new sample.
   void sample(float new_sample);
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/gc_interface/gcCause.hpp
--- a/src/share/vm/gc_interface/gcCause.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/gc_interface/gcCause.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -88,4 +88,36 @@
   static const char* to_string(GCCause::Cause cause);
 };
 
+// Helper class for doing logging that includes the GC Cause
+// as a string.
+class GCCauseString : StackObj {
+ private:
+   static const int _length = 128;
+   char _buffer[_length];
+   int _position;
+
+ public:
+   GCCauseString(const char* prefix, GCCause::Cause cause) {
+     if (PrintGCCause) {
+      _position = jio_snprintf(_buffer, _length, "%s (%s)", prefix, GCCause::to_string(cause));
+     } else {
+      _position = jio_snprintf(_buffer, _length, "%s", prefix);
+     }
+     assert(_position >= 0 && _position <= _length,
+       err_msg("Need to increase the buffer size in GCCauseString? %d", _position));
+   }
+
+   GCCauseString& append(const char* str) {
+     int res = jio_snprintf(_buffer + _position, _length - _position, "%s", str);
+     _position += res;
+     assert(res >= 0 && _position <= _length,
+       err_msg("Need to increase the buffer size in GCCauseString? %d", res));
+     return *this;
+   }
+
+   operator const char*() {
+     return _buffer;
+   }
+};
+
 #endif // SHARE_VM_GC_INTERFACE_GCCAUSE_HPP
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/interpreter/abstractInterpreter.hpp
--- a/src/share/vm/interpreter/abstractInterpreter.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/interpreter/abstractInterpreter.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -107,6 +107,8 @@
     java_lang_math_sqrt,                                        // implementation of java.lang.Math.sqrt  (x)
     java_lang_math_log,                                         // implementation of java.lang.Math.log   (x)
     java_lang_math_log10,                                       // implementation of java.lang.Math.log10 (x)
+    java_lang_math_pow,                                         // implementation of java.lang.Math.pow   (x,y)
+    java_lang_math_exp,                                         // implementation of java.lang.Math.exp   (x)
     java_lang_ref_reference_get,                                // implementation of java.lang.ref.Reference.get()
     number_of_method_entries,
     invalid = -1
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/interpreter/interpreter.cpp
--- a/src/share/vm/interpreter/interpreter.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/interpreter/interpreter.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -221,6 +221,8 @@
     case vmIntrinsics::_dsqrt : return java_lang_math_sqrt ;
     case vmIntrinsics::_dlog  : return java_lang_math_log  ;
     case vmIntrinsics::_dlog10: return java_lang_math_log10;
+    case vmIntrinsics::_dpow  : return java_lang_math_pow  ;
+    case vmIntrinsics::_dexp  : return java_lang_math_exp  ;
 
     case vmIntrinsics::_Reference_get:
                                 return java_lang_ref_reference_get;
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/interpreter/templateInterpreter.cpp
--- a/src/share/vm/interpreter/templateInterpreter.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/interpreter/templateInterpreter.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -370,6 +370,8 @@
   method_entry(java_lang_math_sqrt )
   method_entry(java_lang_math_log  )
   method_entry(java_lang_math_log10)
+  method_entry(java_lang_math_exp  )
+  method_entry(java_lang_math_pow  )
   method_entry(java_lang_ref_reference_get)
 
   // all native method kinds (must be one contiguous block)
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/memory/defNewGeneration.cpp
--- a/src/share/vm/memory/defNewGeneration.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/memory/defNewGeneration.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -548,7 +548,7 @@
 
   init_assuming_no_promotion_failure();
 
-  TraceTime t1("GC", PrintGC && !PrintGCDetails, true, gclog_or_tty);
+  TraceTime t1(GCCauseString("GC", gch->gc_cause()), PrintGC && !PrintGCDetails, true, gclog_or_tty);
   // Capture heap used before collection (for printing).
   size_t gch_prev_used = gch->used();
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/memory/dump.cpp
--- a/src/share/vm/memory/dump.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/memory/dump.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -78,8 +78,8 @@
   void do_oop(oop* p) {
     if (p != NULL) {
       oop obj = *p;
-      if (obj->klass() == SystemDictionary::String_klass()) {
-
+      if (obj->klass() == SystemDictionary::String_klass() &&
+          java_lang_String::has_hash_field()) {
         int hash = java_lang_String::hash_string(obj);
         obj->int_field_put(hash_offset, hash);
       }
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/memory/genCollectedHeap.cpp
--- a/src/share/vm/memory/genCollectedHeap.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/memory/genCollectedHeap.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -480,26 +480,15 @@
   const size_t perm_prev_used = perm_gen()->used();
 
   print_heap_before_gc();
-  if (Verbose) {
-    gclog_or_tty->print_cr("GC Cause: %s", GCCause::to_string(gc_cause()));
-  }
 
   {
     FlagSetting fl(_is_gc_active, true);
 
     bool complete = full && (max_level == (n_gens()-1));
-    const char* gc_cause_str = "GC ";
-    if (complete) {
-      GCCause::Cause cause = gc_cause();
-      if (cause == GCCause::_java_lang_system_gc) {
-        gc_cause_str = "Full GC (System) ";
-      } else {
-        gc_cause_str = "Full GC ";
-      }
-    }
+    const char* gc_cause_prefix = complete ? "Full GC" : "GC";
     gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    TraceTime t(gc_cause_str, PrintGCDetails, false, gclog_or_tty);
+    TraceTime t(GCCauseString(gc_cause_prefix, gc_cause()), PrintGCDetails, false, gclog_or_tty);
 
     gc_prologue(complete);
     increment_total_collections(complete);
@@ -688,11 +677,6 @@
 #ifdef TRACESPINNING
   ParallelTaskTerminator::print_termination_counts();
 #endif
-
-  if (ExitAfterGCNum > 0 && total_collections() == ExitAfterGCNum) {
-    tty->print_cr("Stopping after GC #%d", ExitAfterGCNum);
-    vm_exit(-1);
-  }
 }
 
 HeapWord* GenCollectedHeap::satisfy_failed_allocation(size_t size, bool is_tlab) {
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/memory/genMarkSweep.cpp
--- a/src/share/vm/memory/genMarkSweep.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/memory/genMarkSweep.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -76,7 +76,7 @@
   _ref_processor = rp;
   rp->setup_policy(clear_all_softrefs);
 
-  TraceTime t1("Full GC", PrintGC && !PrintGCDetails, true, gclog_or_tty);
+  TraceTime t1(GCCauseString("Full GC", gch->gc_cause()), PrintGC && !PrintGCDetails, true, gclog_or_tty);
 
   // When collecting the permanent generation methodOops may be moving,
   // so we either have to flush all bcp data or convert it into bci.
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/oops/fieldInfo.hpp
--- a/src/share/vm/oops/fieldInfo.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/oops/fieldInfo.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -50,8 +50,7 @@
     initval_index_offset     = 3,
     low_offset               = 4,
     high_offset              = 5,
-    generic_signature_offset = 6,
-    field_slots              = 7
+    field_slots              = 6
   };
 
  private:
@@ -60,29 +59,28 @@
   void set_name_index(u2 val)                    { _shorts[name_index_offset] = val;         }
   void set_signature_index(u2 val)               { _shorts[signature_index_offset] = val;    }
   void set_initval_index(u2 val)                 { _shorts[initval_index_offset] = val;      }
-  void set_generic_signature_index(u2 val)       { _shorts[generic_signature_offset] = val;  }
 
   u2 name_index() const                          { return _shorts[name_index_offset];        }
   u2 signature_index() const                     { return _shorts[signature_index_offset];   }
   u2 initval_index() const                       { return _shorts[initval_index_offset];     }
-  u2 generic_signature_index() const             { return _shorts[generic_signature_offset]; }
 
  public:
   static FieldInfo* from_field_array(typeArrayOop fields, int index) {
     return ((FieldInfo*)fields->short_at_addr(index * field_slots));
   }
+  static FieldInfo* from_field_array(u2* fields, int index) {
+    return ((FieldInfo*)(fields + index * field_slots));
+  }
 
   void initialize(u2 access_flags,
                   u2 name_index,
                   u2 signature_index,
                   u2 initval_index,
-                  u2 generic_signature_index,
                   u4 offset) {
     _shorts[access_flags_offset] = access_flags;
     _shorts[name_index_offset] = name_index;
     _shorts[signature_index_offset] = signature_index;
     _shorts[initval_index_offset] = initval_index;
-    _shorts[generic_signature_offset] = generic_signature_index;
     set_offset(offset);
   }
 
@@ -105,14 +103,6 @@
     return cp->symbol_at(index);
   }
 
-  Symbol* generic_signature(constantPoolHandle cp) const {
-    int index = generic_signature_index();
-    if (index == 0) {
-      return NULL;
-    }
-    return cp->symbol_at(index);
-  }
-
   void set_access_flags(u2 val)                  { _shorts[access_flags_offset] = val;             }
   void set_offset(u4 val)                        {
     _shorts[low_offset] = extract_low_short_from_int(val);
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/oops/fieldStreams.hpp
--- a/src/share/vm/oops/fieldStreams.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/oops/fieldStreams.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -42,21 +42,57 @@
   constantPoolHandle  _constants;
   int                 _index;
   int                 _limit;
+  int                 _generic_signature_slot;
 
   FieldInfo* field() const { return FieldInfo::from_field_array(_fields(), _index); }
 
+  int init_generic_signature_start_slot() {
+    int length = _fields->length();
+    int num_fields = 0;
+    int skipped_generic_signature_slots = 0;
+    FieldInfo* fi;
+    AccessFlags flags;
+    /* Scan from 0 to the current _index. Count the number of generic
+       signature slots for field[0] to field[_index - 1]. */
+    for (int i = 0; i < _index; i++) {
+      fi = FieldInfo::from_field_array(_fields(), i);
+      flags.set_flags(fi->access_flags());
+      if (flags.field_has_generic_signature()) {
+        length --;
+        skipped_generic_signature_slots ++;
+      }
+    }
+    /* Scan from the current _index. */
+    for (int i = _index; i*FieldInfo::field_slots < length; i++) {
+      fi = FieldInfo::from_field_array(_fields(), i);
+      flags.set_flags(fi->access_flags());
+      if (flags.field_has_generic_signature()) {
+        length --;
+      }
+      num_fields ++;
+    }
+    _generic_signature_slot = length + skipped_generic_signature_slots;
+    assert(_generic_signature_slot <= _fields->length(), "");
+    return num_fields;
+  }
+
   FieldStreamBase(typeArrayHandle fields, constantPoolHandle constants, int start, int limit) {
     _fields = fields;
     _constants = constants;
     _index = start;
-    _limit = limit;
+    int num_fields = init_generic_signature_start_slot();
+    if (limit < start) {
+      _limit = num_fields;
+    } else {
+      _limit = limit;
+    }
   }
 
   FieldStreamBase(typeArrayHandle fields, constantPoolHandle constants) {
     _fields = fields;
     _constants = constants;
     _index = 0;
-    _limit = fields->length() / FieldInfo::field_slots;
+    _limit = init_generic_signature_start_slot();
   }
 
  public:
@@ -65,18 +101,26 @@
     _constants = klass->constants();
     _index = 0;
     _limit = klass->java_fields_count();
+    init_generic_signature_start_slot();
   }
   FieldStreamBase(instanceKlassHandle klass) {
     _fields = klass->fields();
     _constants = klass->constants();
     _index = 0;
     _limit = klass->java_fields_count();
+    init_generic_signature_start_slot();
   }
 
   // accessors
   int index() const                 { return _index; }
 
-  void next() { _index += 1; }
+  void next() {
+    if (access_flags().field_has_generic_signature()) {
+      _generic_signature_slot ++;
+      assert(_generic_signature_slot <= _fields->length(), "");
+    }
+    _index += 1;
+  }
   bool done() const { return _index >= _limit; }
 
   // Accessors for current field
@@ -103,7 +147,13 @@
   }
 
   Symbol* generic_signature() const {
-    return field()->generic_signature(_constants);
+    if (access_flags().field_has_generic_signature()) {
+      assert(_generic_signature_slot < _fields->length(), "out of bounds");
+      int index = _fields->short_at(_generic_signature_slot);
+      return _constants->symbol_at(index);
+    } else {
+      return NULL;
+    }
   }
 
   int offset() const {
@@ -139,11 +189,19 @@
   }
   int generic_signature_index() const {
     assert(!field()->is_internal(), "regular only");
-    return field()->generic_signature_index();
+    if (access_flags().field_has_generic_signature()) {
+      assert(_generic_signature_slot < _fields->length(), "out of bounds");
+      return _fields->short_at(_generic_signature_slot);
+    } else {
+      return 0;
+    }
   }
   void set_generic_signature_index(int index) {
     assert(!field()->is_internal(), "regular only");
-    field()->set_generic_signature_index(index);
+    if (access_flags().field_has_generic_signature()) {
+      assert(_generic_signature_slot < _fields->length(), "out of bounds");
+      _fields->short_at_put(_generic_signature_slot, index);
+    }
   }
   int initval_index() const {
     assert(!field()->is_internal(), "regular only");
@@ -159,8 +217,8 @@
 // Iterate over only the internal fields
 class InternalFieldStream : public FieldStreamBase {
  public:
-  InternalFieldStream(instanceKlass* k):      FieldStreamBase(k->fields(), k->constants(), k->java_fields_count(), k->all_fields_count()) {}
-  InternalFieldStream(instanceKlassHandle k): FieldStreamBase(k->fields(), k->constants(), k->java_fields_count(), k->all_fields_count()) {}
+  InternalFieldStream(instanceKlass* k):      FieldStreamBase(k->fields(), k->constants(), k->java_fields_count(), 0) {}
+  InternalFieldStream(instanceKlassHandle k): FieldStreamBase(k->fields(), k->constants(), k->java_fields_count(), 0) {}
 };
 
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/oops/instanceKlass.hpp
--- a/src/share/vm/oops/instanceKlass.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/oops/instanceKlass.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -168,8 +168,19 @@
   objArrayOop     _local_interfaces;
   // Interface (klassOops) this class implements transitively.
   objArrayOop     _transitive_interfaces;
-  // Instance and static variable information, 5-tuples of shorts [access, name
-  // index, sig index, initval index, offset].
+  // Instance and static variable information, starts with 6-tuples of shorts
+  // [access, name index, sig index, initval index, low_offset, high_offset]
+  // for all fields, followed by the generic signature data at the end of
+  // the array. Only fields with generic signature attributes have the generic
+  // signature data set in the array. The fields array looks like following:
+  //
+  // f1: [access, name index, sig index, initial value index, low_offset, high_offset]
+  // f2: [access, name index, sig index, initial value index, low_offset, high_offset]
+  //      ...
+  // fn: [access, name index, sig index, initial value index, low_offset, high_offset]
+  //     [generic signature index]
+  //     [generic signature index]
+  //     ...
   typeArrayOop    _fields;
   // Constant pool for this class.
   constantPoolOop _constants;
@@ -351,9 +362,6 @@
   // Number of Java declared fields
   int java_fields_count() const           { return (int)_java_fields_count; }
 
-  // Number of fields including any injected fields
-  int all_fields_count() const            { return _fields->length() / FieldInfo::field_slots; }
-
   typeArrayOop fields() const              { return _fields; }
 
   void set_fields(typeArrayOop f, u2 java_fields_count) {
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/oops/instanceRefKlass.cpp
--- a/src/share/vm/oops/instanceRefKlass.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/oops/instanceRefKlass.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -515,6 +515,12 @@
 void instanceRefKlass::acquire_pending_list_lock(BasicLock *pending_list_basic_lock) {
   // we may enter this with pending exception set
   PRESERVE_EXCEPTION_MARK;  // exceptions are never thrown, needed for TRAPS argument
+
+  // Create a HandleMark in case we retry a GC multiple times.
+  // Each time we attempt the GC, we allocate the handle below
+  // to hold the pending list lock. We want to free this handle.
+  HandleMark hm;
+
   Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());
   ObjectSynchronizer::fast_enter(h_lock, pending_list_basic_lock, false, THREAD);
   assert(ObjectSynchronizer::current_thread_holds_lock(
@@ -527,7 +533,12 @@
   BasicLock *pending_list_basic_lock) {
   // we may enter this with pending exception set
   PRESERVE_EXCEPTION_MARK;  // exceptions are never thrown, needed for TRAPS argument
-  //
+
+  // Create a HandleMark in case we retry a GC multiple times.
+  // Each time we attempt the GC, we allocate the handle below
+  // to hold the pending list lock. We want to free this handle.
+  HandleMark hm;
+
   Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());
   assert(ObjectSynchronizer::current_thread_holds_lock(
            JavaThread::current(), h_lock),
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/opto/doCall.cpp
--- a/src/share/vm/opto/doCall.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/opto/doCall.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -780,7 +780,7 @@
     if( at_method_entry ) {
       // bump invocation counter if top method (for statistics)
       if (CountCompiledCalls && depth() == 1) {
-        const TypeInstPtr* addr_type = TypeInstPtr::make(method());
+        const TypeOopPtr* addr_type = TypeOopPtr::make_from_constant(method());
         Node* adr1 = makecon(addr_type);
         Node* adr2 = basic_plus_adr(adr1, adr1, in_bytes(methodOopDesc::compiled_invocation_counter_offset()));
         increment_counter(adr2);
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/opto/graphKit.cpp
--- a/src/share/vm/opto/graphKit.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/opto/graphKit.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -3748,3 +3748,81 @@
   final_sync(ideal);
 }
 #undef __
+
+
+
+Node* GraphKit::load_String_offset(Node* ctrl, Node* str) {
+  if (java_lang_String::has_offset_field()) {
+    int offset_offset = java_lang_String::offset_offset_in_bytes();
+    const TypeInstPtr* string_type = TypeInstPtr::make(TypePtr::NotNull, C->env()->String_klass(),
+                                                       false, NULL, 0);
+    const TypePtr* offset_field_type = string_type->add_offset(offset_offset);
+    int offset_field_idx = C->get_alias_index(offset_field_type);
+    return make_load(ctrl,
+                     basic_plus_adr(str, str, offset_offset),
+                     TypeInt::INT, T_INT, offset_field_idx);
+  } else {
+    return intcon(0);
+  }
+}
+
+Node* GraphKit::load_String_length(Node* ctrl, Node* str) {
+  if (java_lang_String::has_count_field()) {
+    int count_offset = java_lang_String::count_offset_in_bytes();
+    const TypeInstPtr* string_type = TypeInstPtr::make(TypePtr::NotNull, C->env()->String_klass(),
+                                                       false, NULL, 0);
+    const TypePtr* count_field_type = string_type->add_offset(count_offset);
+    int count_field_idx = C->get_alias_index(count_field_type);
+    return make_load(ctrl,
+                     basic_plus_adr(str, str, count_offset),
+                     TypeInt::INT, T_INT, count_field_idx);
+  } else {
+    return load_array_length(load_String_value(ctrl, str));
+  }
+}
+
+Node* GraphKit::load_String_value(Node* ctrl, Node* str) {
+  int value_offset = java_lang_String::value_offset_in_bytes();
+  const TypeInstPtr* string_type = TypeInstPtr::make(TypePtr::NotNull, C->env()->String_klass(),
+                                                     false, NULL, 0);
+  const TypePtr* value_field_type = string_type->add_offset(value_offset);
+  const TypeAryPtr*  value_type = TypeAryPtr::make(TypePtr::NotNull,
+                                                   TypeAry::make(TypeInt::CHAR,TypeInt::POS),
+                                                   ciTypeArrayKlass::make(T_CHAR), true, 0);
+  int value_field_idx = C->get_alias_index(value_field_type);
+  return make_load(ctrl, basic_plus_adr(str, str, value_offset),
+                   value_type, T_OBJECT, value_field_idx);
+}
+
+void GraphKit::store_String_offset(Node* ctrl, Node* str, Node* value) {
+  int offset_offset = java_lang_String::offset_offset_in_bytes();
+  const TypeInstPtr* string_type = TypeInstPtr::make(TypePtr::NotNull, C->env()->String_klass(),
+                                                     false, NULL, 0);
+  const TypePtr* offset_field_type = string_type->add_offset(offset_offset);
+  int offset_field_idx = C->get_alias_index(offset_field_type);
+  store_to_memory(ctrl, basic_plus_adr(str, offset_offset),
+                  value, T_INT, offset_field_idx);
+}
+
+void GraphKit::store_String_value(Node* ctrl, Node* str, Node* value) {
+  int value_offset = java_lang_String::value_offset_in_bytes();
+  const TypeInstPtr* string_type = TypeInstPtr::make(TypePtr::NotNull, C->env()->String_klass(),
+                                                     false, NULL, 0);
+  const TypePtr* value_field_type = string_type->add_offset(value_offset);
+  const TypeAryPtr*  value_type = TypeAryPtr::make(TypePtr::NotNull,
+                                                   TypeAry::make(TypeInt::CHAR,TypeInt::POS),
+                                                   ciTypeArrayKlass::make(T_CHAR), true, 0);
+  int value_field_idx = C->get_alias_index(value_field_type);
+  store_to_memory(ctrl, basic_plus_adr(str, value_offset),
+                  value, T_OBJECT, value_field_idx);
+}
+
+void GraphKit::store_String_length(Node* ctrl, Node* str, Node* value) {
+  int count_offset = java_lang_String::count_offset_in_bytes();
+  const TypeInstPtr* string_type = TypeInstPtr::make(TypePtr::NotNull, C->env()->String_klass(),
+                                                     false, NULL, 0);
+  const TypePtr* count_field_type = string_type->add_offset(count_offset);
+  int count_field_idx = C->get_alias_index(count_field_type);
+  store_to_memory(ctrl, basic_plus_adr(str, count_offset),
+                  value, T_INT, count_field_idx);
+}
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/opto/graphKit.hpp
--- a/src/share/vm/opto/graphKit.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/opto/graphKit.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -781,6 +781,14 @@
   Node* new_array(Node* klass_node, Node* count_val, int nargs,
                   Node* *return_size_val = NULL);
 
+  // java.lang.String helpers
+  Node* load_String_offset(Node* ctrl, Node* str);
+  Node* load_String_length(Node* ctrl, Node* str);
+  Node* load_String_value(Node* ctrl, Node* str);
+  void store_String_offset(Node* ctrl, Node* str, Node* value);
+  void store_String_length(Node* ctrl, Node* str, Node* value);
+  void store_String_value(Node* ctrl, Node* str, Node* value);
+
   // Handy for making control flow
   IfNode* create_and_map_if(Node* ctrl, Node* tst, float prob, float cnt) {
     IfNode* iff = new (C, 2) IfNode(ctrl, tst, prob, cnt);// New IfNode's
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/opto/library_call.cpp
--- a/src/share/vm/opto/library_call.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/opto/library_call.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -147,7 +147,8 @@
     return generate_method_call(method_id, true, false);
   }
 
-  Node* make_string_method_node(int opcode, Node* str1, Node* cnt1, Node* str2, Node* cnt2);
+  Node* make_string_method_node(int opcode, Node* str1_start, Node* cnt1, Node* str2_start, Node* cnt2);
+  Node* make_string_method_node(int opcode, Node* str1, Node* str2);
   bool inline_string_compareTo();
   bool inline_string_indexOf();
   Node* string_indexOf(Node* string_object, ciTypeArray* target_array, jint offset, jint cache_i, jint md2_i);
@@ -873,48 +874,76 @@
 
 
 //------------------------------make_string_method_node------------------------
-// Helper method for String intrinsic finctions.
-Node* LibraryCallKit::make_string_method_node(int opcode, Node* str1, Node* cnt1, Node* str2, Node* cnt2) {
-  const int value_offset  = java_lang_String::value_offset_in_bytes();
-  const int count_offset  = java_lang_String::count_offset_in_bytes();
-  const int offset_offset = java_lang_String::offset_offset_in_bytes();
-
+// Helper method for String intrinsic functions. This version is called
+// with str1 and str2 pointing to String object nodes.
+//
+Node* LibraryCallKit::make_string_method_node(int opcode, Node* str1, Node* str2) {
   Node* no_ctrl = NULL;
 
-  ciInstanceKlass* klass = env()->String_klass();
-  const TypeOopPtr* string_type = TypeOopPtr::make_from_klass(klass);
-
-  const TypeAryPtr* value_type =
-        TypeAryPtr::make(TypePtr::NotNull,
-                         TypeAry::make(TypeInt::CHAR,TypeInt::POS),
-                         ciTypeArrayKlass::make(T_CHAR), true, 0);
-
-  // Get start addr of string and substring
-  Node* str1_valuea  = basic_plus_adr(str1, str1, value_offset);
-  Node* str1_value   = make_load(no_ctrl, str1_valuea, value_type, T_OBJECT, string_type->add_offset(value_offset));
-  Node* str1_offseta = basic_plus_adr(str1, str1, offset_offset);
-  Node* str1_offset  = make_load(no_ctrl, str1_offseta, TypeInt::INT, T_INT, string_type->add_offset(offset_offset));
+  // Get start addr of string
+  Node* str1_value   = load_String_value(no_ctrl, str1);
+  Node* str1_offset  = load_String_offset(no_ctrl, str1);
   Node* str1_start   = array_element_address(str1_value, str1_offset, T_CHAR);
 
-  Node* str2_valuea  = basic_plus_adr(str2, str2, value_offset);
-  Node* str2_value   = make_load(no_ctrl, str2_valuea, value_type, T_OBJECT, string_type->add_offset(value_offset));
-  Node* str2_offseta = basic_plus_adr(str2, str2, offset_offset);
-  Node* str2_offset  = make_load(no_ctrl, str2_offseta, TypeInt::INT, T_INT, string_type->add_offset(offset_offset));
+  // Get length of string 1
+  Node* str1_len  = load_String_length(no_ctrl, str1);
+
+  Node* str2_value   = load_String_value(no_ctrl, str2);
+  Node* str2_offset  = load_String_offset(no_ctrl, str2);
   Node* str2_start   = array_element_address(str2_value, str2_offset, T_CHAR);
 
+  Node* str2_len = NULL;
+  Node* result = NULL;
+
+  switch (opcode) {
+  case Op_StrIndexOf:
+    // Get length of string 2
+    str2_len = load_String_length(no_ctrl, str2);
+
+    result = new (C, 6) StrIndexOfNode(control(), memory(TypeAryPtr::CHARS),
+                                 str1_start, str1_len, str2_start, str2_len);
+    break;
+  case Op_StrComp:
+    // Get length of string 2
+    str2_len = load_String_length(no_ctrl, str2);
+
+    result = new (C, 6) StrCompNode(control(), memory(TypeAryPtr::CHARS),
+                                 str1_start, str1_len, str2_start, str2_len);
+    break;
+  case Op_StrEquals:
+    result = new (C, 5) StrEqualsNode(control(), memory(TypeAryPtr::CHARS),
+                               str1_start, str2_start, str1_len);
+    break;
+  default:
+    ShouldNotReachHere();
+    return NULL;
+  }
+
+  // All these intrinsics have checks.
+  C->set_has_split_ifs(true); // Has chance for split-if optimization
+
+  return _gvn.transform(result);
+}
+
+// Helper method for String intrinsic functions. This version is called
+// with str1 and str2 pointing to char[] nodes, with cnt1 and cnt2 pointing
+// to Int nodes containing the lenghts of str1 and str2.
+//
+Node* LibraryCallKit::make_string_method_node(int opcode, Node* str1_start, Node* cnt1, Node* str2_start, Node* cnt2) {
+
   Node* result = NULL;
   switch (opcode) {
   case Op_StrIndexOf:
     result = new (C, 6) StrIndexOfNode(control(), memory(TypeAryPtr::CHARS),
-                                       str1_start, cnt1, str2_start, cnt2);
+                                 str1_start, cnt1, str2_start, cnt2);
     break;
   case Op_StrComp:
     result = new (C, 6) StrCompNode(control(), memory(TypeAryPtr::CHARS),
-                                    str1_start, cnt1, str2_start, cnt2);
+                                 str1_start, cnt1, str2_start, cnt2);
     break;
   case Op_StrEquals:
     result = new (C, 5) StrEqualsNode(control(), memory(TypeAryPtr::CHARS),
-                                      str1_start, str2_start, cnt1);
+                                 str1_start, str2_start, cnt1);
     break;
   default:
     ShouldNotReachHere();
@@ -932,10 +961,6 @@
 
   if (!Matcher::has_match_rule(Op_StrComp)) return false;
 
-  const int value_offset = java_lang_String::value_offset_in_bytes();
-  const int count_offset = java_lang_String::count_offset_in_bytes();
-  const int offset_offset = java_lang_String::offset_offset_in_bytes();
-
   _sp += 2;
   Node *argument = pop();  // pop non-receiver first:  it was pushed second
   Node *receiver = pop();
@@ -952,18 +977,7 @@
     return true;
   }
 
-  ciInstanceKlass* klass = env()->String_klass();
-  const TypeOopPtr* string_type = TypeOopPtr::make_from_klass(klass);
-  Node* no_ctrl = NULL;
-
-  // Get counts for string and argument
-  Node* receiver_cnta = basic_plus_adr(receiver, receiver, count_offset);
-  Node* receiver_cnt  = make_load(no_ctrl, receiver_cnta, TypeInt::INT, T_INT, string_type->add_offset(count_offset));
-
-  Node* argument_cnta = basic_plus_adr(argument, argument, count_offset);
-  Node* argument_cnt  = make_load(no_ctrl, argument_cnta, TypeInt::INT, T_INT, string_type->add_offset(count_offset));
-
-  Node* compare = make_string_method_node(Op_StrComp, receiver, receiver_cnt, argument, argument_cnt);
+  Node* compare = make_string_method_node(Op_StrComp, receiver, argument);
   push(compare);
   return true;
 }
@@ -973,10 +987,6 @@
 
   if (!Matcher::has_match_rule(Op_StrEquals)) return false;
 
-  const int value_offset = java_lang_String::value_offset_in_bytes();
-  const int count_offset = java_lang_String::count_offset_in_bytes();
-  const int offset_offset = java_lang_String::offset_offset_in_bytes();
-
   int nargs = 2;
   _sp += nargs;
   Node* argument = pop();  // pop non-receiver first:  it was pushed second
@@ -1030,24 +1040,31 @@
     }
   }
 
-  const TypeOopPtr* string_type = TypeOopPtr::make_from_klass(klass);
-
-  Node* no_ctrl = NULL;
-  Node* receiver_cnt;
-  Node* argument_cnt;
-
   if (!stopped()) {
+    const TypeOopPtr* string_type = TypeOopPtr::make_from_klass(klass);
+
     // Properly cast the argument to String
     argument = _gvn.transform(new (C, 2) CheckCastPPNode(control(), argument, string_type));
     // This path is taken only when argument's type is String:NotNull.
     argument = cast_not_null(argument, false);
 
-    // Get counts for string and argument
-    Node* receiver_cnta = basic_plus_adr(receiver, receiver, count_offset);
-    receiver_cnt  = make_load(no_ctrl, receiver_cnta, TypeInt::INT, T_INT, string_type->add_offset(count_offset));
-
-    Node* argument_cnta = basic_plus_adr(argument, argument, count_offset);
-    argument_cnt  = make_load(no_ctrl, argument_cnta, TypeInt::INT, T_INT, string_type->add_offset(count_offset));
+    Node* no_ctrl = NULL;
+
+    // Get start addr of receiver
+    Node* receiver_val    = load_String_value(no_ctrl, receiver);
+    Node* receiver_offset = load_String_offset(no_ctrl, receiver);
+    Node* receiver_start = array_element_address(receiver_val, receiver_offset, T_CHAR);
+
+    // Get length of receiver
+    Node* receiver_cnt  = load_String_length(no_ctrl, receiver);
+
+    // Get start addr of argument
+    Node* argument_val   = load_String_value(no_ctrl, argument);
+    Node* argument_offset = load_String_offset(no_ctrl, argument);
+    Node* argument_start = array_element_address(argument_val, argument_offset, T_CHAR);
+
+    // Get length of argument
+    Node* argument_cnt  = load_String_length(no_ctrl, argument);
 
     // Check for receiver count != argument count
     Node* cmp = _gvn.transform( new(C, 3) CmpINode(receiver_cnt, argument_cnt) );
@@ -1057,14 +1074,14 @@
       phi->init_req(4, intcon(0));
       region->init_req(4, if_ne);
     }
-  }
-
-  // Check for count == 0 is done by mach node StrEquals.
-
-  if (!stopped()) {
-    Node* equals = make_string_method_node(Op_StrEquals, receiver, receiver_cnt, argument, argument_cnt);
-    phi->init_req(1, equals);
-    region->init_req(1, control());
+
+    // Check for count == 0 is done by assembler code for StrEquals.
+
+    if (!stopped()) {
+      Node* equals = make_string_method_node(Op_StrEquals, receiver_start, receiver_cnt, argument_start, argument_cnt);
+      phi->init_req(1, equals);
+      region->init_req(1, control());
+    }
   }
 
   // post merge
@@ -1162,20 +1179,9 @@
 
   const int nargs = 2; // number of arguments to push back for uncommon trap in predicate
 
-  const int value_offset  = java_lang_String::value_offset_in_bytes();
-  const int count_offset  = java_lang_String::count_offset_in_bytes();
-  const int offset_offset = java_lang_String::offset_offset_in_bytes();
-
-  ciInstanceKlass* klass = env()->String_klass();
-  const TypeOopPtr* string_type = TypeOopPtr::make_from_klass(klass);
-  const TypeAryPtr*  source_type = TypeAryPtr::make(TypePtr::NotNull, TypeAry::make(TypeInt::CHAR,TypeInt::POS), ciTypeArrayKlass::make(T_CHAR), true, 0);
-
-  Node* sourceOffseta = basic_plus_adr(string_object, string_object, offset_offset);
-  Node* sourceOffset  = make_load(no_ctrl, sourceOffseta, TypeInt::INT, T_INT, string_type->add_offset(offset_offset));
-  Node* sourceCounta  = basic_plus_adr(string_object, string_object, count_offset);
-  Node* sourceCount   = make_load(no_ctrl, sourceCounta, TypeInt::INT, T_INT, string_type->add_offset(count_offset));
-  Node* sourcea       = basic_plus_adr(string_object, string_object, value_offset);
-  Node* source        = make_load(no_ctrl, sourcea, source_type, T_OBJECT, string_type->add_offset(value_offset));
+  Node* source        = load_String_value(no_ctrl, string_object);
+  Node* sourceOffset  = load_String_offset(no_ctrl, string_object);
+  Node* sourceCount   = load_String_length(no_ctrl, string_object);
 
   Node* target = _gvn.transform( makecon(TypeOopPtr::make_from_constant(target_array, true)) );
   jint target_length = target_array->length();
@@ -1243,10 +1249,6 @@
 //------------------------------inline_string_indexOf------------------------
 bool LibraryCallKit::inline_string_indexOf() {
 
-  const int value_offset  = java_lang_String::value_offset_in_bytes();
-  const int count_offset  = java_lang_String::count_offset_in_bytes();
-  const int offset_offset = java_lang_String::offset_offset_in_bytes();
-
   _sp += 2;
   Node *argument = pop();  // pop non-receiver first:  it was pushed second
   Node *receiver = pop();
@@ -1280,12 +1282,21 @@
     Node*       result_phi = new (C, 4) PhiNode(result_rgn, TypeInt::INT);
     Node* no_ctrl  = NULL;
 
-    // Get counts for string and substr
-    Node* source_cnta = basic_plus_adr(receiver, receiver, count_offset);
-    Node* source_cnt  = make_load(no_ctrl, source_cnta, TypeInt::INT, T_INT, string_type->add_offset(count_offset));
-
-    Node* substr_cnta = basic_plus_adr(argument, argument, count_offset);
-    Node* substr_cnt  = make_load(no_ctrl, substr_cnta, TypeInt::INT, T_INT, string_type->add_offset(count_offset));
+    // Get start addr of source string
+    Node* source = load_String_value(no_ctrl, receiver);
+    Node* source_offset = load_String_offset(no_ctrl, receiver);
+    Node* source_start = array_element_address(source, source_offset, T_CHAR);
+
+    // Get length of source string
+    Node* source_cnt  = load_String_length(no_ctrl, receiver);
+
+    // Get start addr of substring
+    Node* substr = load_String_value(no_ctrl, argument);
+    Node* substr_offset = load_String_offset(no_ctrl, argument);
+    Node* substr_start = array_element_address(substr, substr_offset, T_CHAR);
+
+    // Get length of source string
+    Node* substr_cnt  = load_String_length(no_ctrl, argument);
 
     // Check for substr count > string count
     Node* cmp = _gvn.transform( new(C, 3) CmpINode(substr_cnt, source_cnt) );
@@ -1308,7 +1319,7 @@
     }
 
     if (!stopped()) {
-      result = make_string_method_node(Op_StrIndexOf, receiver, source_cnt, argument, substr_cnt);
+      result = make_string_method_node(Op_StrIndexOf, source_start, source_cnt, substr_start, substr_cnt);
       result_phi->init_req(1, result);
       result_rgn->init_req(1, control());
     }
@@ -1333,11 +1344,19 @@
     ciInstance* str = str_const->as_instance();
     assert(str != NULL, "must be instance");
 
-    ciObject* v = str->field_value_by_offset(value_offset).as_object();
-    int       o = str->field_value_by_offset(offset_offset).as_int();
-    int       c = str->field_value_by_offset(count_offset).as_int();
+    ciObject* v = str->field_value_by_offset(java_lang_String::value_offset_in_bytes()).as_object();
     ciTypeArray* pat = v->as_type_array(); // pattern (argument) character array
 
+    int o;
+    int c;
+    if (java_lang_String::has_offset_field()) {
+      o = str->field_value_by_offset(java_lang_String::offset_offset_in_bytes()).as_int();
+      c = str->field_value_by_offset(java_lang_String::count_offset_in_bytes()).as_int();
+    } else {
+      o = 0;
+      c = pat->length();
+    }
+
     // constant strings have no offset and count == length which
     // simplifies the resulting code somewhat so lets optimize for that.
     if (o != 0 || c != pat->length()) {
@@ -1538,9 +1557,6 @@
   // every again.  NaN results requires StrictMath.exp handling.
   if (too_many_traps(Deoptimization::Reason_intrinsic))  return false;
 
-  // Do not intrinsify on older platforms which lack cmove.
-  if (ConditionalMoveLimit == 0)  return false;
-
   _sp += arg_size();        // restore stack pointer
   Node *x = pop_math_arg();
   Node *result = _gvn.transform(new (C, 2) ExpDNode(0,x));
@@ -1783,15 +1799,11 @@
   case vmIntrinsics::_dsqrt: return Matcher::has_match_rule(Op_SqrtD) ? inline_sqrt(id) : false;
   case vmIntrinsics::_dabs:  return Matcher::has_match_rule(Op_AbsD)  ? inline_abs(id)  : false;
 
-    // These intrinsics don't work on X86.  The ad implementation doesn't
-    // handle NaN's properly.  Instead of returning infinity, the ad
-    // implementation returns a NaN on overflow. See bug: 6304089
-    // Once the ad implementations are fixed, change the code below
-    // to match the intrinsics above
-
   case vmIntrinsics::_dexp:  return
+    Matcher::has_match_rule(Op_ExpD) ? inline_exp(id) :
     runtime_math(OptoRuntime::Math_D_D_Type(), CAST_FROM_FN_PTR(address, SharedRuntime::dexp), "EXP");
   case vmIntrinsics::_dpow:  return
+    Matcher::has_match_rule(Op_PowD) ? inline_pow(id) :
     runtime_math(OptoRuntime::Math_DD_D_Type(), CAST_FROM_FN_PTR(address, SharedRuntime::dpow), "POW");
 
    // These intrinsics are not yet correctly implemented
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/opto/stringopts.cpp
--- a/src/share/vm/opto/stringopts.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/opto/stringopts.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -528,16 +528,6 @@
   }
 
   // Collect the types needed to talk about the various slices of memory
-  const TypeInstPtr* string_type = TypeInstPtr::make(TypePtr::NotNull, C->env()->String_klass(),
-                                                     false, NULL, 0);
-
-  const TypePtr* value_field_type = string_type->add_offset(java_lang_String::value_offset_in_bytes());
-  const TypePtr* offset_field_type = string_type->add_offset(java_lang_String::offset_offset_in_bytes());
-  const TypePtr* count_field_type = string_type->add_offset(java_lang_String::count_offset_in_bytes());
-
-  value_field_idx = C->get_alias_index(value_field_type);
-  count_field_idx = C->get_alias_index(count_field_type);
-  offset_field_idx = C->get_alias_index(offset_field_type);
   char_adr_idx = C->get_alias_index(TypeAryPtr::CHARS);
 
   // For each locally allocated StringBuffer see if the usages can be
@@ -1174,18 +1164,9 @@
 
 Node* PhaseStringOpts::copy_string(GraphKit& kit, Node* str, Node* char_array, Node* start) {
   Node* string = str;
-  Node* offset = kit.make_load(kit.control(),
-                               kit.basic_plus_adr(string, string, java_lang_String::offset_offset_in_bytes()),
-                               TypeInt::INT, T_INT, offset_field_idx);
-  Node* count = kit.make_load(kit.control(),
-                              kit.basic_plus_adr(string, string, java_lang_String::count_offset_in_bytes()),
-                              TypeInt::INT, T_INT, count_field_idx);
-  const TypeAryPtr*  value_type = TypeAryPtr::make(TypePtr::NotNull,
-                                                   TypeAry::make(TypeInt::CHAR,TypeInt::POS),
-                                                   ciTypeArrayKlass::make(T_CHAR), true, 0);
-  Node* value = kit.make_load(kit.control(),
-                              kit.basic_plus_adr(string, string, java_lang_String::value_offset_in_bytes()),
-                              value_type, T_OBJECT, value_field_idx);
+  Node* offset = kit.load_String_offset(kit.control(), string);
+  Node* count  = kit.load_String_length(kit.control(), string);
+  Node* value  = kit.load_String_value (kit.control(), string);
 
   // copy the contents
   if (offset->is_Con() && count->is_Con() && value->is_Con() && count->get_int() < unroll_string_copy_length) {
@@ -1342,10 +1323,9 @@
           arg = phi;
           sc->set_argument(argi, arg);
         }
-        //         Node* offset = kit.make_load(NULL, kit.basic_plus_adr(arg, arg, offset_offset),
-        //                                      TypeInt::INT, T_INT, offset_field_idx);
-        Node* count = kit.make_load(kit.control(), kit.basic_plus_adr(arg, arg, java_lang_String::count_offset_in_bytes()),
-                                    TypeInt::INT, T_INT, count_field_idx);
+
+        Node* count = kit.load_String_length(kit.control(), arg);
+
         length = __ AddI(length, count);
         string_sizes->init_req(argi, NULL);
         break;
@@ -1436,12 +1416,11 @@
   }
 
   // Intialize the string
-  kit.store_to_memory(kit.control(), kit.basic_plus_adr(result, java_lang_String::offset_offset_in_bytes()),
-                      __ intcon(0), T_INT, offset_field_idx);
-  kit.store_to_memory(kit.control(), kit.basic_plus_adr(result, java_lang_String::count_offset_in_bytes()),
-                      length, T_INT, count_field_idx);
-  kit.store_to_memory(kit.control(), kit.basic_plus_adr(result, java_lang_String::value_offset_in_bytes()),
-                      char_array, T_OBJECT, value_field_idx);
+  if (java_lang_String::has_offset_field()) {
+    kit.store_String_offset(kit.control(), result, __ intcon(0));
+    kit.store_String_length(kit.control(), result, length);
+  }
+  kit.store_String_value(kit.control(), result, char_array);
 
   // hook up the outgoing control and result
   kit.replace_call(sc->end(), result);
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/opto/stringopts.hpp
--- a/src/share/vm/opto/stringopts.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/opto/stringopts.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -41,9 +41,6 @@
 
   // Memory slices needed for code gen
   int char_adr_idx;
-  int value_field_idx;
-  int count_field_idx;
-  int offset_field_idx;
 
   // Integer.sizeTable - used for int to String conversion
   ciField* size_table_field;
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/opto/subnode.cpp
--- a/src/share/vm/opto/subnode.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/opto/subnode.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1314,7 +1314,5 @@
   if( t2->base() != Type::DoubleCon ) return Type::DOUBLE;
   double d1 = t1->getd();
   double d2 = t2->getd();
-  if( d1 < 0.0 ) return Type::DOUBLE;
-  if( d2 < 0.0 ) return Type::DOUBLE;
   return TypeD::make( StubRoutines::intrinsic_pow( d1, d2 ) );
 }
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/runtime/arguments.cpp
--- a/src/share/vm/runtime/arguments.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/runtime/arguments.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -3041,7 +3041,7 @@
     return result;
   }
 
-#ifdef JAVASE_EMBEDDED
+#if (defined JAVASE_EMBEDDED || defined ARM)
   UNSUPPORTED_OPTION(UseG1GC, "G1 GC");
 #endif
 
@@ -3094,6 +3094,14 @@
     PrintGC = true;
   }
 
+  if (!JDK_Version::is_gte_jdk18x_version()) {
+    // To avoid changing the log format for 7 updates this flag is only
+    // true by default in JDK8 and above.
+    if (FLAG_IS_DEFAULT(PrintGCCause)) {
+      FLAG_SET_DEFAULT(PrintGCCause, false);
+    }
+  }
+
   // Set object alignment values.
   set_object_alignment();
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/runtime/fieldDescriptor.cpp
--- a/src/share/vm/runtime/fieldDescriptor.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/runtime/fieldDescriptor.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -28,6 +28,7 @@
 #include "memory/resourceArea.hpp"
 #include "memory/universe.inline.hpp"
 #include "oops/instanceKlass.hpp"
+#include "oops/fieldStreams.hpp"
 #include "runtime/fieldDescriptor.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/signature.hpp"
@@ -37,6 +38,20 @@
   return instanceKlass::cast(_cp->pool_holder())->class_loader();
 }
 
+Symbol* fieldDescriptor::generic_signature() const {
+  int idx = 0;
+  instanceKlass* ik = instanceKlass::cast(field_holder());
+  for (AllFieldStream fs(ik); !fs.done(); fs.next()) {
+    if (idx == _index) {
+      return fs.generic_signature();
+    } else {
+      idx ++;
+    }
+  }
+  assert(false, "should never happen");
+  return NULL;
+}
+
 typeArrayOop fieldDescriptor::annotations() const {
   instanceKlass* ik = instanceKlass::cast(field_holder());
   objArrayOop md = ik->fields_annotations();
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/runtime/fieldDescriptor.hpp
--- a/src/share/vm/runtime/fieldDescriptor.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/runtime/fieldDescriptor.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -67,7 +67,7 @@
   oop loader() const;
   // Offset (in words) of field from start of instanceOop / klassOop
   int offset() const                   { return field()->offset(); }
-  Symbol* generic_signature() const    { return field()->generic_signature(_cp); }
+  Symbol* generic_signature() const;
   int index() const                    { return _index; }
   typeArrayOop annotations() const;
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/runtime/globals.hpp
--- a/src/share/vm/runtime/globals.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/runtime/globals.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -3285,9 +3285,6 @@
   diagnostic(intx, VerifyGCLevel,     0,                                    \
           "Generation level at which to start +VerifyBefore/AfterGC")       \
                                                                             \
-  develop(uintx, ExitAfterGCNum,   0,                                       \
-          "If non-zero, exit after this GC.")                               \
-                                                                            \
   product(intx, MaxTenuringThreshold,    15,                                \
           "Maximum value for tenuring threshold")                           \
                                                                             \
@@ -3902,7 +3899,10 @@
           " of this flag is true for JDK 6 and earlier")                    \
                                                                             \
   diagnostic(bool, WhiteBoxAPI, false,                                      \
-          "Enable internal testing APIs")
+          "Enable internal testing APIs")                                   \
+                                                                            \
+  product(bool, PrintGCCause, true,                                         \
+          "Include GC cause in GC logging")
 
 /*
  *  Macros for factoring of globals
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/runtime/java.hpp
--- a/src/share/vm/runtime/java.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/runtime/java.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -206,6 +206,10 @@
     return current().compare_major(7) == 0;
   }
 
+  static bool is_jdk18x_version() {
+    return current().compare_major(8) == 0;
+  }
+
   static bool is_gte_jdk13x_version() {
     return current().compare_major(3) >= 0;
   }
@@ -225,6 +229,10 @@
   static bool is_gte_jdk17x_version() {
     return current().compare_major(7) >= 0;
   }
+
+  static bool is_gte_jdk18x_version() {
+    return current().compare_major(8) >= 0;
+  }
 };
 
 #endif // SHARE_VM_RUNTIME_JAVA_HPP
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/runtime/os.hpp
--- a/src/share/vm/runtime/os.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/runtime/os.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -492,6 +492,7 @@
   // Print out system information; they are called by fatal error handler.
   // Output format may be different on different platforms.
   static void print_os_info(outputStream* st);
+  static void print_os_info_brief(outputStream* st);
   static void print_cpu_info(outputStream* st);
   static void pd_print_cpu_info(outputStream* st);
   static void print_memory_info(outputStream* st);
@@ -685,14 +686,17 @@
   // Platform dependent stuff
 #ifdef TARGET_OS_FAMILY_linux
 # include "os_linux.hpp"
+# include "os_posix.hpp"
 #endif
 #ifdef TARGET_OS_FAMILY_solaris
 # include "os_solaris.hpp"
+# include "os_posix.hpp"
 #endif
 #ifdef TARGET_OS_FAMILY_windows
 # include "os_windows.hpp"
 #endif
 #ifdef TARGET_OS_FAMILY_bsd
+# include "os_posix.hpp"
 # include "os_bsd.hpp"
 #endif
 #ifdef TARGET_OS_ARCH_linux_x86
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/runtime/osThread.hpp
--- a/src/share/vm/runtime/osThread.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/runtime/osThread.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -61,7 +61,6 @@
 class OSThread: public CHeapObj {
   friend class VMStructs;
  private:
-  //void* _start_proc;            // Thread start routine
   OSThreadStartFunc _start_proc;  // Thread start routine
   void* _start_parm;              // Thread start routine parameter
   volatile ThreadState _state;    // Thread state *hint*
@@ -77,10 +76,7 @@
   void set_state(ThreadState state)                { _state = state; }
   ThreadState get_state()                          { return _state; }
 
-  // Constructor
   OSThread(OSThreadStartFunc start_proc, void* start_parm);
-
-  // Destructor
   ~OSThread();
 
   // Accessors
@@ -98,7 +94,6 @@
 
   // For java intrinsics:
   static ByteSize interrupted_offset()            { return byte_offset_of(OSThread, _interrupted); }
-  static ByteSize thread_id_offset()              { return byte_offset_of(OSThread, _thread_id); }
 
   // Platform dependent stuff
 #ifdef TARGET_OS_FAMILY_linux
@@ -114,6 +109,19 @@
 # include "osThread_bsd.hpp"
 #endif
 
+ public:
+  static ByteSize thread_id_offset()              { return byte_offset_of(OSThread, _thread_id); }
+  static size_t thread_id_size()                  { return sizeof(thread_id_t); }
+
+  thread_id_t thread_id() const                   { return _thread_id; }
+
+  void set_thread_id(thread_id_t id)              { _thread_id = id; }
+
+ private:
+  // _thread_id is kernel thread id (similar to LWP id on Solaris). Each
+  // thread has a unique thread_id (BsdThreads or NPTL). It can be used
+  // to access /proc.
+  thread_id_t _thread_id;
 };
 
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/runtime/vmStructs.cpp
--- a/src/share/vm/runtime/vmStructs.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/runtime/vmStructs.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -2352,7 +2352,6 @@
   declare_constant(FieldInfo::initval_index_offset)                       \
   declare_constant(FieldInfo::low_offset)                                 \
   declare_constant(FieldInfo::high_offset)                                \
-  declare_constant(FieldInfo::generic_signature_offset)                   \
   declare_constant(FieldInfo::field_slots)                                \
                                                                           \
   /************************************************/                      \
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/utilities/accessFlags.hpp
--- a/src/share/vm/utilities/accessFlags.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/utilities/accessFlags.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -80,10 +80,12 @@
   JVM_ACC_FIELD_ACCESS_WATCHED       = 0x00002000,  // field access is watched by JVMTI
   JVM_ACC_FIELD_MODIFICATION_WATCHED = 0x00008000,  // field modification is watched by JVMTI
   JVM_ACC_FIELD_INTERNAL             = 0x00000400,  // internal field, same as JVM_ACC_ABSTRACT
+  JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE = 0x00000800, // field has generic signature
 
   JVM_ACC_FIELD_INTERNAL_FLAGS       = JVM_ACC_FIELD_ACCESS_WATCHED |
                                        JVM_ACC_FIELD_MODIFICATION_WATCHED |
-                                       JVM_ACC_FIELD_INTERNAL,
+                                       JVM_ACC_FIELD_INTERNAL |
+                                       JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE,
 
                                                     // flags accepted by set_field_flags()
   JVM_ACC_FIELD_FLAGS                = JVM_RECOGNIZED_FIELD_MODIFIERS | JVM_ACC_FIELD_INTERNAL_FLAGS
@@ -156,6 +158,8 @@
   bool is_field_modification_watched() const
                                         { return (_flags & JVM_ACC_FIELD_MODIFICATION_WATCHED) != 0; }
   bool is_internal() const              { return (_flags & JVM_ACC_FIELD_INTERNAL) != 0; }
+  bool field_has_generic_signature() const
+                                        { return (_flags & JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE) != 0; }
 
   // get .class file flags
   jint get_flags               () const { return (_flags & JVM_ACC_WRITTEN_FLAGS); }
@@ -225,6 +229,10 @@
                                            atomic_clear_bits(JVM_ACC_FIELD_MODIFICATION_WATCHED);
                                          }
                                        }
+  void set_field_has_generic_signature()
+                                       {
+                                         atomic_set_bits(JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE);
+                                       }
 
   // Conversion
   jshort as_short() const              { return (jshort)_flags; }
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/utilities/globalDefinitions.hpp
--- a/src/share/vm/utilities/globalDefinitions.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/utilities/globalDefinitions.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -161,10 +161,6 @@
 const size_t G                  = M*K;
 const size_t HWperKB            = K / sizeof(HeapWord);
 
-const size_t LOG_K              = 10;
-const size_t LOG_M              = 2 * LOG_K;
-const size_t LOG_G              = 2 * LOG_M;
-
 const jint min_jint = (jint)1 << (sizeof(jint)*BitsPerByte-1); // 0x80000000 == smallest jint
 const jint max_jint = (juint)min_jint - 1;                     // 0x7FFFFFFF == largest jint
 
@@ -179,6 +175,11 @@
 const jint  NANOSECS_PER_MILLISEC = 1000000;
 
 inline const char* proper_unit_for_byte_size(size_t s) {
+#ifdef _LP64
+  if (s >= 10*G) {
+    return "G";
+  }
+#endif
   if (s >= 10*M) {
     return "M";
   } else if (s >= 10*K) {
@@ -188,17 +189,22 @@
   }
 }
 
-inline size_t byte_size_in_proper_unit(size_t s) {
+template <class T>
+inline T byte_size_in_proper_unit(T s) {
+#ifdef _LP64
+  if (s >= 10*G) {
+    return (T)(s/G);
+  }
+#endif
   if (s >= 10*M) {
-    return s/M;
+    return (T)(s/M);
   } else if (s >= 10*K) {
-    return s/K;
+    return (T)(s/K);
   } else {
     return s;
   }
 }
 
-
 //----------------------------------------------------------------------------------------------------
 // VM type definitions
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/utilities/numberSeq.cpp
--- a/src/share/vm/utilities/numberSeq.cpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/utilities/numberSeq.cpp	Thu Jun 07 12:30:02 2012 -0700
@@ -115,24 +115,6 @@
   return true;
 }
 
-NumberSeq::NumberSeq(NumberSeq *total, int n, NumberSeq **parts) {
-  guarantee(check_nums(total, n, parts), "all seq lengths should match");
-  double sum = total->sum();
-  for (int i = 0; i < n; ++i) {
-    if (parts[i] != NULL)
-      sum -= parts[i]->sum();
-  }
-
-  _num = total->num();
-  _sum = sum;
-
-  // we do not calculate these...
-  _sum_of_squares = -1.0;
-  _maximum = -1.0;
-  _davg = -1.0;
-  _dvariance = -1.0;
-}
-
 void NumberSeq::add(double val) {
   AbsSeq::add(val);
 
diff -r 84e198dc2474 -r f9d57285de70 src/share/vm/utilities/numberSeq.hpp
--- a/src/share/vm/utilities/numberSeq.hpp	Mon May 21 14:56:33 2012 -0700
+++ b/src/share/vm/utilities/numberSeq.hpp	Thu Jun 07 12:30:02 2012 -0700
@@ -93,7 +93,6 @@
 
 public:
   NumberSeq(double alpha = DEFAULT_ALPHA_VALUE);
-  NumberSeq(NumberSeq* total, int n_parts, NumberSeq** parts);
 
   virtual void add(double val);
   virtual double maximum() const { return _maximum; }
diff -r 84e198dc2474 -r f9d57285de70 test/compiler/6894807/Test6894807.sh
--- a/test/compiler/6894807/Test6894807.sh	Mon May 21 14:56:33 2012 -0700
+++ b/test/compiler/6894807/Test6894807.sh	Thu Jun 07 12:30:02 2012 -0700
@@ -18,8 +18,6 @@
   exit 1
 fi
 
-BIT_FLAG=""
-
 # set platform-dependent variables
 OS=`uname -s`
 case "$OS" in
@@ -27,12 +25,6 @@
     NULL=/dev/null
     PS=":"
     FS="/"
-    ## for solaris, linux it's HOME
-    FILE_LOCATION=$HOME
-    if [ -f ${FILE_LOCATION}${FS}JDK64BIT -a ${OS} = "SunOS" ]
-    then
-        BIT_FLAG=`cat ${FILE_LOCATION}${FS}JDK64BIT | grep -v '^#'`
-    fi
     ;;
   Windows_* )
     NULL=NUL
@@ -50,9 +42,9 @@
 
 THIS_DIR=`pwd`
 
-${TESTJAVA}${FS}bin${FS}java ${BIT_FLAG} -version
+${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} -version
 
-${TESTJAVA}${FS}bin${FS}java ${BIT_FLAG} -server IsInstanceTest > test.out 2>&1
+${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} IsInstanceTest > test.out 2>&1
 
 cat test.out
 
diff -r 84e198dc2474 -r f9d57285de70 test/gc/6941923/test6941923.sh
--- a/test/gc/6941923/test6941923.sh	Mon May 21 14:56:33 2012 -0700
+++ b/test/gc/6941923/test6941923.sh	Thu Jun 07 12:30:02 2012 -0700
@@ -30,7 +30,7 @@
   exit 0
 fi
 
-$JAVA_HOME/bin/java -version > $NULL 2>&1
+$JAVA_HOME/bin/java ${TESTVMOPTS} -version > $NULL 2>&1
 
 if [ $? != 0 ]; then
   echo "Wrong JAVA_HOME? JAVA_HOME: $JAVA_HOME"
@@ -119,7 +119,7 @@
 
 options="-Xloggc:$logfile -XX:+UseConcMarkSweepGC -XX:+PrintGC -XX:+PrintGCDetails -XX:+UseGCLogFileRotation  -XX:NumberOfGCLogFiles=1 -XX:GCLogFileSize=$gclogsize"
 echo "Test gc log rotation in same file, wait for $tts minutes ...."
-$JAVA_HOME/bin/java $options $testname $tts
+$JAVA_HOME/bin/java ${TESTVMOPTS} $options $testname $tts
 if [ $? != 0 ]; then
   echo "$msgfail"
   exit -1
@@ -148,7 +148,7 @@
 numoffiles=3
 options="-Xloggc:$logfile -XX:+UseConcMarkSweepGC -XX:+PrintGC -XX:+PrintGCDetails -XX:+UseGCLogFileRotation  -XX:NumberOfGCLogFiles=$numoffiles -XX:GCLogFileSize=$gclogsize"
 echo "Test gc log rotation in $numoffiles files, wait for $tts minutes ...."
-$JAVA_HOME/bin/java $options $testname $tts
+$JAVA_HOME/bin/java ${TESTVMOPTS} $options $testname $tts
 if [ $? != 0 ]; then
   echo "$msgfail"
   exit -1
diff -r 84e198dc2474 -r f9d57285de70 test/gc/7168848/HumongousAlloc.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/gc/7168848/HumongousAlloc.java	Thu Jun 07 12:30:02 2012 -0700
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test Humongous.java
+ * @bug 7168848
+ * @summary G1: humongous object allocations should initiate marking cycles when necessary
+ * @run main/othervm -Xms100m -Xmx100m -XX:+PrintGC -XX:G1HeapRegionSize=1m -XX:+UseG1GC  HumongousAlloc
+ *
+ */
+import java.lang.management.GarbageCollectorMXBean;
+import java.lang.management.ManagementFactory;
+import java.util.List;
+
+public class HumongousAlloc {
+
+    public static byte[] dummy;
+    private static int sleepFreq = 40;
+    private static int sleepTime = 1000;
+    private static double size = 0.75;
+    private static int iterations = 50;
+    private static int MB = 1024 * 1024;
+
+    public static void allocate(int size, int sleepTime, int sleepFreq) throws InterruptedException {
+        System.out.println("Will allocate objects of size: " + size
+                + " bytes and sleep for " + sleepTime
+                + " ms after every " + sleepFreq + "th allocation.");
+        int count = 0;
+        while (count < iterations) {
+            for (int i = 0; i < sleepFreq; i++) {
+                dummy = new byte[size - 16];
+            }
+            Thread.sleep(sleepTime);
+            count++;
+        }
+    }
+
+    public static void main(String[] args) throws InterruptedException {
+        allocate((int) (size * MB), sleepTime, sleepFreq);
+        List<GarbageCollectorMXBean> collectors = ManagementFactory.getGarbageCollectorMXBeans();
+        for (GarbageCollectorMXBean collector : collectors) {
+            if (collector.getName().contains("G1 Old")) {
+               long count = collector.getCollectionCount();
+                if (count > 0) {
+                    throw new RuntimeException("Failed: FullGCs should not have happened. The number of FullGC run is " + count);
+                }
+                else {
+                    System.out.println("Passed.");
+                }
+            }
+        }
+    }
+}
+
diff -r 84e198dc2474 -r f9d57285de70 test/runtime/6626217/Test6626217.sh
--- a/test/runtime/6626217/Test6626217.sh	Mon May 21 14:56:33 2012 -0700
+++ b/test/runtime/6626217/Test6626217.sh	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 # 
-#  Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
+#  Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
 #  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 # 
 #  This code is free software; you can redistribute it and/or modify it
@@ -46,8 +46,6 @@
   exit 1
 fi
 
-BIT_FLAG=""
-
 # set platform-dependent variables
 OS=`uname -s`
 case "$OS" in
@@ -58,12 +56,6 @@
     RM=/bin/rm
     CP=/bin/cp
     MV=/bin/mv
-    ## for solaris, linux it's HOME
-    FILE_LOCATION=$HOME
-    if [ -f ${FILE_LOCATION}${FS}JDK64BIT -a ${OS} = "SunOS" ]
-    then
-        BIT_FLAG=`cat ${FILE_LOCATION}${FS}JDK64BIT`
-    fi
     ;;
   Windows_* )
     NULL=NUL
@@ -87,7 +79,7 @@
 JAVA=${TESTJAVA}${FS}bin${FS}java
 JAVAC=${TESTJAVA}${FS}bin${FS}javac
 
-${JAVA} ${BIT_FLAG} -version
+${JAVA} ${TESTVMOPTS} -version
 
 # Current directory is scratch directory, copy all the test source there
 # (for the subsequent moves to work).
@@ -113,7 +105,7 @@
 ${MV} many_loader.impl1 many_loader.class
 ${RM} many_loader.java
 
-${JAVA} ${BIT_FLAG} -Xverify -Xint -cp . bug_21227 >test.out 2>&1
+${JAVA} ${TESTVMOPTS} -Xverify -Xint -cp . bug_21227 >test.out 2>&1
 grep "loader constraint" test.out
 exit $?
 
diff -r 84e198dc2474 -r f9d57285de70 test/runtime/6878713/Test6878713.sh
--- a/test/runtime/6878713/Test6878713.sh	Mon May 21 14:56:33 2012 -0700
+++ b/test/runtime/6878713/Test6878713.sh	Thu Jun 07 12:30:02 2012 -0700
@@ -25,8 +25,6 @@
   exit 1
 fi
 
-BIT_FLAG=""
-
 # set platform-dependent variables
 OS=`uname -s`
 case "$OS" in
@@ -34,12 +32,6 @@
     NULL=/dev/null
     PS=":"
     FS="/"
-    ## for solaris, linux it's HOME
-    FILE_LOCATION=$HOME
-    if [ -f ${FILE_LOCATION}${FS}JDK64BIT -a ${OS} = "SunOS" ]
-    then
-        BIT_FLAG=`cat ${FILE_LOCATION}${FS}JDK64BIT | grep -v '^#'`
-    fi
     ;;
   Windows_* )
     NULL=NUL
@@ -57,11 +49,11 @@
 
 THIS_DIR=`pwd`
 
-${TESTJAVA}${FS}bin${FS}java ${BIT_FLAG} -version
+${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} -version
 
 ${TESTJAVA}${FS}bin${FS}jar xvf ${TESTSRC}${FS}testcase.jar
 
-${TESTJAVA}${FS}bin${FS}java ${BIT_FLAG} OOMCrashClass1960_2 > test.out 2>&1
+${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} OOMCrashClass1960_2 > test.out 2>&1
 
 if [ -s core -o -s "hs_*.log" ]
 then
diff -r 84e198dc2474 -r f9d57285de70 test/runtime/6929067/Test6929067.sh
--- a/test/runtime/6929067/Test6929067.sh	Mon May 21 14:56:33 2012 -0700
+++ b/test/runtime/6929067/Test6929067.sh	Thu Jun 07 12:30:02 2012 -0700
@@ -19,8 +19,6 @@
   echo "If this is incorrect, try setting the variable manually."
 fi
 
-BIT_FLAG=""
-
 # set platform-dependent variables
 OS=`uname -s`
 case "$OS" in
@@ -42,7 +40,19 @@
     ;;
 esac
 
-LD_LIBRARY_PATH=.:${TESTJAVA}/jre/lib/i386/client:/usr/openwin/lib:/usr/dt/lib:/usr/lib:$LD_LIBRARY_PATH
+# Choose arch: i386 or amd64 (test is Linux-specific)
+# Cannot simply look at TESTVMOPTS as -d64 is not
+# passed if there is only a 64-bit JVM available.
+
+${TESTJAVA}/bin/java ${TESTVMOPTS} -version 2>1 | grep "64-Bit" >/dev/null
+if [ "$?" = "0" ]
+then
+  ARCH=amd64
+else
+  ARCH=i386
+fi
+
+LD_LIBRARY_PATH=.:${TESTJAVA}/jre/lib/${ARCH}/client:/usr/openwin/lib:/usr/dt/lib:/usr/lib:$LD_LIBRARY_PATH
 export LD_LIBRARY_PATH
 
 THIS_DIR=`pwd`
@@ -51,10 +61,10 @@
 cp ${TESTSRC}${FS}T.java ${THIS_DIR}
 
 
-${TESTJAVA}${FS}bin${FS}java ${BIT_FLAG} -fullversion
+${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} -fullversion
 
 ${TESTJAVA}${FS}bin${FS}javac T.java
 
-gcc -o invoke -I${TESTJAVA}/include -I${TESTJAVA}/include/linux invoke.c ${TESTJAVA}/jre/lib/i386/client/libjvm.so
+gcc -o invoke -I${TESTJAVA}/include -I${TESTJAVA}/include/linux invoke.c ${TESTJAVA}/jre/lib/${ARCH}/client/libjvm.so
 ./invoke
 exit $?
diff -r 84e198dc2474 -r f9d57285de70 test/runtime/7020373/Test7020373.sh
--- a/test/runtime/7020373/Test7020373.sh	Mon May 21 14:56:33 2012 -0700
+++ b/test/runtime/7020373/Test7020373.sh	Thu Jun 07 12:30:02 2012 -0700
@@ -27,8 +27,6 @@
   exit 1
 fi
 
-BIT_FLAG=""
-
 # set platform-dependent variables
 OS=`uname -s`
 case "$OS" in
@@ -36,12 +34,6 @@
     NULL=/dev/null
     PS=":"
     FS="/"
-    ## for solaris, linux it's HOME
-    FILE_LOCATION=$HOME
-    if [ -f ${FILE_LOCATION}${FS}JDK64BIT -a ${OS} = "SunOS" ]
-    then
-        BIT_FLAG=`cat ${FILE_LOCATION}${FS}JDK64BIT | grep -v '^#'`
-    fi
     ;;
   Windows_* )
     NULL=NUL
@@ -59,11 +51,11 @@
 
 THIS_DIR=`pwd`
 
-${TESTJAVA}${FS}bin${FS}java ${BIT_FLAG} -version
+${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} -version
 
 ${TESTJAVA}${FS}bin${FS}jar xvf ${TESTSRC}${FS}testcase.jar
 
-${TESTJAVA}${FS}bin${FS}java ${BIT_FLAG} OOMCrashClass4000_1 > test.out 2>&1
+${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} OOMCrashClass4000_1 > test.out 2>&1
 
 cat test.out
 
diff -r 84e198dc2474 -r f9d57285de70 test/runtime/7051189/Xchecksig.sh
--- a/test/runtime/7051189/Xchecksig.sh	Mon May 21 14:56:33 2012 -0700
+++ b/test/runtime/7051189/Xchecksig.sh	Thu Jun 07 12:30:02 2012 -0700
@@ -1,5 +1,5 @@
 # 
-#  Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
+#  Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
 #  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 # 
 #  This code is free software; you can redistribute it and/or modify it
@@ -41,18 +41,10 @@
 fi
 
 
-BIT_FLAG=""
-
 OS=`uname -s`
 case "$OS" in
   SunOS | Linux )
     FS="/"
-    ## for solaris, linux it's HOME
-    FILE_LOCATION=$HOME
-    if [ -f ${FILE_LOCATION}${FS}JDK64BIT -a ${OS} = "SunOS" ]
-    then
-        BIT_FLAG=`cat ${FILE_LOCATION}${FS}JDK64BIT`
-    fi
     ;;
   Windows_* )
     printf "Not testing libjsig.so on Windows. PASSED.\n "
@@ -69,20 +61,16 @@
 
 # LD_PRELOAD arch needs to match the binary we run, so run the java
 # 64-bit binary directly if we are testing 64-bit (bin/ARCH/java).
-
-# However JPRT runs: .../solaris_x64_5.10-debug/bin/java
-# ..which is 32-bit, when it has built the 64-bit version to test.
-#
-# How does this script know we are meant to run the 64-bit version?
-# Can check for the path of the binary containing "x64" on Solaris.
+# Check if TESTVMOPS contains -d64, but cannot use 
+# java ${TESTVMOPS} to run "java -d64"  with LD_PRELOAD.
 
 if [ ${OS} -eq "SunOS" ]
 then
-  printf  "SunOS test JAVA=${JAVA}"
-  printf ${JAVA} | grep x64 > /dev/null
+  printf  "SunOS test TESTVMOPTS = ${TESTVMOPTS}"
+  printf ${TESTVMOPTS} | grep d64 > /dev/null
   if [ $? -eq 0 ]
   then
-    printf "SunOS x64 test, forcing -d64\n"
+    printf "SunOS 64-bit test\n"
     BIT_FLAG=-d64
   fi
 fi
@@ -127,20 +115,19 @@
   printf "Skipping test: libjsig missing for given architecture: ${LIBJSIG}\n"
   exit 0
 fi
-# Use java -version to test, java version info appeas on stderr,
+# Use java -version to test, java version info appears on stderr,
 # the libjsig message we are removing appears on stdout.
 
 # grep returns zero meaning found, non-zero means not found:
 
-LD_PRELOAD=${LIBJSIG} ${JAVA} ${BIT_FLAG} -Xcheck:jni -version 2>&1  | grep "libjsig is activated"
-
+LD_PRELOAD=${LIBJSIG} ${JAVA} ${TESTVMOPTS} -Xcheck:jni -version 2>&1  | grep "libjsig is activated"
 if [ $? -eq 0 ]; then
   printf "Failed: -Xcheck:jni prints message when libjsig.so is loaded.\n"
   exit 1
 fi
 
 
-LD_PRELOAD=${LIBJSIG} ${JAVA} ${BIT_FLAG} -Xcheck:jni -verbose:jni -version 2>&1 | grep "libjsig is activated"
+LD_PRELOAD=${LIBJSIG} ${JAVA} ${TESTVMOPTS} -Xcheck:jni -verbose:jni -version 2>&1 | grep "libjsig is activated"
 if [ $? != 0 ]; then
   printf "Failed: -Xcheck:jni does not print message when libjsig.so is loaded and -verbose:jni is set.\n"
   exit 1
diff -r 84e198dc2474 -r f9d57285de70 test/runtime/7158988/TestFieldMonitor.sh
--- a/test/runtime/7158988/TestFieldMonitor.sh	Mon May 21 14:56:33 2012 -0700
+++ b/test/runtime/7158988/TestFieldMonitor.sh	Thu Jun 07 12:30:02 2012 -0700
@@ -18,8 +18,6 @@
   exit 1
 fi
 
-BIT_FLAG=""
-
 # set platform-dependent variables
 OS=`uname -s`
 case "$OS" in
@@ -27,12 +25,6 @@
     NULL=/dev/null
     PS=":"
     FS="/"
-    ## for solaris, linux it's HOME
-    FILE_LOCATION=$HOME
-    if [ -f ${FILE_LOCATION}${FS}JDK64BIT -a ${OS} = "SunOS" -a `uname -p`='sparc' ]
-    then
-        BIT_FLAG="-d64"
-    fi
     ;;
   Windows_95 | Windows_98 | Windows_ME )
     NULL=NUL
@@ -56,11 +48,11 @@
 
 cp ${TESTSRC}${FS}*.java .
 
-${TESTJAVA}${FS}bin${FS}java ${BIT_FLAG} -fullversion
+${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} -fullversion
 
 ${TESTJAVA}${FS}bin${FS}javac -classpath .${PS}$TESTJAVA${FS}lib${FS}tools.jar *.java
 
-${TESTJAVA}${FS}bin${FS}java ${BIT_FLAG} -classpath .${PS}$TESTJAVA${FS}lib${FS}tools.jar FieldMonitor > test.out 2>&1 &
+${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} -classpath .${PS}$TESTJAVA${FS}lib${FS}tools.jar FieldMonitor > test.out 2>&1 &
 
 P_PID=$!