--- a/hotspot/agent/make/Makefile	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/agent/make/Makefile	Wed Dec 17 18:20:10 2014 +0100
@@ -58,15 +58,19 @@
 sun.jvm.hotspot.debugger.dummy \
 sun.jvm.hotspot.debugger.linux \
 sun.jvm.hotspot.debugger.linux.amd64 \
+sun.jvm.hotspot.debugger.linux.ppc64 \
 sun.jvm.hotspot.debugger.linux.x86 \
 sun.jvm.hotspot.debugger.posix \
 sun.jvm.hotspot.debugger.posix.elf \
+sun.jvm.hotspot.debugger.ppc64 \
 sun.jvm.hotspot.debugger.proc \
 sun.jvm.hotspot.debugger.proc.amd64 \
+sun.jvm.hotspot.debugger.proc.ppc64 \
 sun.jvm.hotspot.debugger.proc.sparc \
 sun.jvm.hotspot.debugger.proc.x86 \
 sun.jvm.hotspot.debugger.remote \
 sun.jvm.hotspot.debugger.remote.amd64 \
+sun.jvm.hotspot.debugger.remote.ppc64 \
 sun.jvm.hotspot.debugger.remote.sparc \
 sun.jvm.hotspot.debugger.remote.x86 \
 sun.jvm.hotspot.debugger.sparc \
@@ -93,9 +97,11 @@
 sun.jvm.hotspot.runtime.bsd_x86 \
 sun.jvm.hotspot.runtime.linux \
 sun.jvm.hotspot.runtime.linux_amd64 \
+sun.jvm.hotspot.runtime.linux_ppc64 \
 sun.jvm.hotspot.runtime.linux_sparc \
 sun.jvm.hotspot.runtime.linux_x86 \
 sun.jvm.hotspot.runtime.posix \
+sun.jvm.hotspot.runtime.ppc64 \
 sun.jvm.hotspot.runtime.solaris_amd64 \
 sun.jvm.hotspot.runtime.solaris_sparc \
 sun.jvm.hotspot.runtime.solaris_x86 \
@@ -142,15 +148,19 @@
 sun/jvm/hotspot/debugger/cdbg/basic/x86/*.java \
 sun/jvm/hotspot/debugger/dummy/*.java \
 sun/jvm/hotspot/debugger/linux/*.java \
+sun/jvm/hotspot/debugger/linux/ppc64/*.java \
 sun/jvm/hotspot/debugger/linux/x86/*.java \
 sun/jvm/hotspot/debugger/posix/*.java \
 sun/jvm/hotspot/debugger/posix/elf/*.java \
+sun/jvm/hotspot/debugger/ppc64/*.java \
 sun/jvm/hotspot/debugger/proc/*.java \
 sun/jvm/hotspot/debugger/proc/amd64/*.java \
+sun/jvm/hotspot/debugger/proc/ppc64/*.java \
 sun/jvm/hotspot/debugger/proc/sparc/*.java \
 sun/jvm/hotspot/debugger/proc/x86/*.java \
 sun/jvm/hotspot/debugger/remote/*.java \
 sun/jvm/hotspot/debugger/remote/amd64/*.java \
+sun/jvm/hotspot/debugger/remote/ppc64/*.java \
 sun/jvm/hotspot/debugger/remote/sparc/*.java \
 sun/jvm/hotspot/debugger/remote/x86/*.java \
 sun/jvm/hotspot/debugger/sparc/*.java \
@@ -174,9 +184,11 @@
 sun/jvm/hotspot/runtime/bsd_x86/*.java \
 sun/jvm/hotspot/runtime/linux/*.java \
 sun/jvm/hotspot/runtime/linux_amd64/*.java \
+sun/jvm/hotspot/runtime/linux_ppc64/*.java \
 sun/jvm/hotspot/runtime/linux_sparc/*.java \
 sun/jvm/hotspot/runtime/linux_x86/*.java \
 sun/jvm/hotspot/runtime/posix/*.java \
+sun/jvm/hotspot/runtime/ppc64/*.java \
 sun/jvm/hotspot/runtime/solaris_amd64/*.java \
 sun/jvm/hotspot/runtime/solaris_sparc/*.java \
 sun/jvm/hotspot/runtime/solaris_x86/*.java \

--- a/hotspot/agent/src/os/linux/LinuxDebuggerLocal.c	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/agent/src/os/linux/LinuxDebuggerLocal.c	Wed Dec 17 18:20:10 2014 +0100
@@ -49,6 +49,10 @@
 #include "sun_jvm_hotspot_debugger_sparc_SPARCThreadContext.h"
 #endif
 
+#ifdef ppc64
+#include "sun_jvm_hotspot_debugger_ppc64_PPC64ThreadContext.h"
+#endif
+
 static jfieldID p_ps_prochandle_ID = 0;
 static jfieldID threadList_ID = 0;
 static jfieldID loadObjectList_ID = 0;
@@ -341,7 +345,7 @@
   return (err == PS_OK)? array : 0;
 }
 
-#if defined(i386) || defined(amd64) || defined(sparc) || defined(sparcv9)
+#if defined(i386) || defined(amd64) || defined(sparc) || defined(sparcv9) | defined(ppc64)
 JNIEXPORT jlongArray JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal_getThreadIntegerRegisterSet0
   (JNIEnv *env, jobject this_obj, jint lwp_id) {
 
@@ -366,6 +370,10 @@
 #if defined(sparc) || defined(sparcv9)
 #define NPRGREG sun_jvm_hotspot_debugger_sparc_SPARCThreadContext_NPRGREG
 #endif
+#ifdef ppc64
+#define NPRGREG sun_jvm_hotspot_debugger_ppc64_PPC64ThreadContext_NPRGREG
+#endif
+
 
   array = (*env)->NewLongArray(env, NPRGREG);
   CHECK_EXCEPTION_(0);
@@ -458,6 +466,45 @@
   regs[REG_INDEX(R_O7)]  = gregs.u_regs[14];
 #endif /* sparc */
 
+#ifdef ppc64
+#define REG_INDEX(reg) sun_jvm_hotspot_debugger_ppc64_PPC64ThreadContext_##reg
+
+  regs[REG_INDEX(LR)] = gregs.link;
+  regs[REG_INDEX(NIP)] = gregs.nip;
+  regs[REG_INDEX(R0)]  = gregs.gpr[0];
+  regs[REG_INDEX(R1)]  = gregs.gpr[1];
+  regs[REG_INDEX(R2)]  = gregs.gpr[2];
+  regs[REG_INDEX(R3)]  = gregs.gpr[3];
+  regs[REG_INDEX(R4)]  = gregs.gpr[4];
+  regs[REG_INDEX(R5)]  = gregs.gpr[5];
+  regs[REG_INDEX(R6)]  = gregs.gpr[6];
+  regs[REG_INDEX(R7)]  = gregs.gpr[7];
+  regs[REG_INDEX(R8)]  = gregs.gpr[8];
+  regs[REG_INDEX(R9)]  = gregs.gpr[9];
+  regs[REG_INDEX(R10)] = gregs.gpr[10];
+  regs[REG_INDEX(R11)] = gregs.gpr[11];
+  regs[REG_INDEX(R12)] = gregs.gpr[12];
+  regs[REG_INDEX(R13)] = gregs.gpr[13];
+  regs[REG_INDEX(R14)] = gregs.gpr[14];
+  regs[REG_INDEX(R15)] = gregs.gpr[15];
+  regs[REG_INDEX(R16)] = gregs.gpr[16];
+  regs[REG_INDEX(R17)] = gregs.gpr[17];
+  regs[REG_INDEX(R18)] = gregs.gpr[18];
+  regs[REG_INDEX(R19)] = gregs.gpr[19];
+  regs[REG_INDEX(R20)] = gregs.gpr[20];
+  regs[REG_INDEX(R21)] = gregs.gpr[21];
+  regs[REG_INDEX(R22)] = gregs.gpr[22];
+  regs[REG_INDEX(R23)] = gregs.gpr[23];
+  regs[REG_INDEX(R24)] = gregs.gpr[24];
+  regs[REG_INDEX(R25)] = gregs.gpr[25];
+  regs[REG_INDEX(R26)] = gregs.gpr[26];
+  regs[REG_INDEX(R27)] = gregs.gpr[27];
+  regs[REG_INDEX(R28)] = gregs.gpr[28];
+  regs[REG_INDEX(R29)] = gregs.gpr[29];
+  regs[REG_INDEX(R30)] = gregs.gpr[30];
+  regs[REG_INDEX(R31)] = gregs.gpr[31];
+
+#endif
 
   (*env)->ReleaseLongArrayElements(env, array, regs, JNI_COMMIT);
   return array;

--- a/hotspot/agent/src/os/linux/symtab.c	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/agent/src/os/linux/symtab.c	Wed Dec 17 18:20:10 2014 +0100
@@ -325,6 +325,12 @@
 
   // Reading of elf header
   struct elf_section *scn_cache = NULL;
+#if defined(ppc64) && !defined(ABI_ELFv2)
+  // Only big endian ppc64 (i.e. ABI_ELFv1) has 'official procedure descriptors' in ELF files
+  // see: http://refspecs.linuxfoundation.org/LSB_3.1.1/LSB-Core-PPC64/LSB-Core-PPC64/specialsections.html
+  struct elf_section *opd_sect = NULL;
+  ELF_SHDR *opd = NULL;
+#endif
   int cnt = 0;
   ELF_SHDR* shbuf = NULL;
   ELF_SHDR* cursct = NULL;
@@ -368,6 +374,14 @@
     cursct++;
   }
 
+#if defined(ppc64) && !defined(ABI_ELFv2)
+  opd_sect = find_section_by_name(".opd", fd, &ehdr, scn_cache);
+  if (opd_sect != NULL && opd_sect->c_data != NULL && opd_sect->c_shdr != NULL) {
+    // plausibility check
+    opd = opd_sect->c_shdr;
+  }
+#endif
+
   for (cnt = 1; cnt < ehdr.e_shnum; cnt++) {
     ELF_SHDR *shdr = scn_cache[cnt].c_shdr;
 
@@ -412,6 +426,7 @@
       // copy symbols info our symtab and enter them info the hash table
       for (j = 0; j < n; j++, syms++) {
         ENTRY item, *ret;
+        uintptr_t sym_value;
         char *sym_name = symtab->strs + syms->st_name;
 
         // skip non-object and non-function symbols
@@ -422,9 +437,19 @@
         if (*sym_name == '\0' || syms->st_shndx == SHN_UNDEF) continue;
 
         symtab->symbols[j].name   = sym_name;
-        symtab->symbols[j].offset = syms->st_value - baseaddr;
         symtab->symbols[j].size   = syms->st_size;
+        sym_value = syms->st_value;
 
+#if defined(ppc64) && !defined(ABI_ELFv2)
+        // see hotspot/src/share/vm/utilities/elfFuncDescTable.hpp for a detailed description
+        // of why we have to go this extra way via the '.opd' section on big endian ppc64
+        if (opd != NULL && *sym_name != '.' &&
+            (opd->sh_addr <= sym_value && sym_value <= opd->sh_addr + opd->sh_size)) {
+          sym_value = ((ELF_ADDR*)opd_sect->c_data)[(sym_value - opd->sh_addr) / sizeof(ELF_ADDR*)];
+        }
+#endif
+
+        symtab->symbols[j].offset = sym_value - baseaddr;
         item.key = sym_name;
         item.data = (void *)&(symtab->symbols[j]);
 
@@ -433,9 +458,17 @@
     }
   }
 
+#if defined(ppc64) && !defined(ABI_ELFv2)
+  // On Linux/PPC64 the debuginfo files contain an empty function descriptor
+  // section (i.e. '.opd' section) which makes the resolution of symbols
+  // with the above algorithm impossible (we would need the have both, the
+  // .opd section from the library and the symbol table from the debuginfo
+  // file which doesn't match with the current workflow.)
+  goto quit;
+#endif
+
   // Look for a separate debuginfo file.
   if (try_debuginfo) {
-
     // We prefer a debug symtab to an object's own symtab, so look in
     // the debuginfo file.  We stash a copy of the old symtab in case
     // there is no debuginfo.

--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/MachineDescriptionPPC64.java	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/MachineDescriptionPPC64.java	Wed Dec 17 18:20:10 2014 +0100
@@ -34,6 +34,6 @@
   }
 
   public boolean isBigEndian() {
-    return true;
+    return "big".equals(System.getProperty("sun.cpu.endian"));
   }
 }

--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/linux/LinuxCDebugger.java	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/linux/LinuxCDebugger.java	Wed Dec 17 18:20:10 2014 +0100
@@ -26,14 +26,17 @@
 
 import java.io.*;
 import java.util.*;
+
 import sun.jvm.hotspot.debugger.*;
 import sun.jvm.hotspot.debugger.cdbg.*;
 import sun.jvm.hotspot.debugger.x86.*;
 import sun.jvm.hotspot.debugger.amd64.*;
 import sun.jvm.hotspot.debugger.sparc.*;
+import sun.jvm.hotspot.debugger.ppc64.*;
 import sun.jvm.hotspot.debugger.linux.x86.*;
 import sun.jvm.hotspot.debugger.linux.amd64.*;
 import sun.jvm.hotspot.debugger.linux.sparc.*;
+import sun.jvm.hotspot.debugger.linux.ppc64.*;
 import sun.jvm.hotspot.utilities.*;
 
 class LinuxCDebugger implements CDebugger {
@@ -96,7 +99,14 @@
        Address pc  = context.getRegisterAsAddress(SPARCThreadContext.R_O7);
        if (pc == null) return null;
        return new LinuxSPARCCFrame(dbg, sp, pc, LinuxDebuggerLocal.getAddressSize());
-    } else {
+    }  else if (cpu.equals("ppc64")) {
+        PPC64ThreadContext context = (PPC64ThreadContext) thread.getContext();
+        Address sp = context.getRegisterAsAddress(PPC64ThreadContext.SP);
+        if (sp == null) return null;
+        Address pc  = context.getRegisterAsAddress(PPC64ThreadContext.PC);
+        if (pc == null) return null;
+        return new LinuxPPC64CFrame(dbg, sp, pc, LinuxDebuggerLocal.getAddressSize());
+     } else {
        // Runtime exception thrown by LinuxThreadContextFactory if unknown cpu
        ThreadContext context = (ThreadContext) thread.getContext();
        return context.getTopFrame(dbg);

--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/linux/LinuxThreadContextFactory.java	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/linux/LinuxThreadContextFactory.java	Wed Dec 17 18:20:10 2014 +0100
@@ -29,6 +29,7 @@
 import sun.jvm.hotspot.debugger.linux.amd64.*;
 import sun.jvm.hotspot.debugger.linux.ia64.*;
 import sun.jvm.hotspot.debugger.linux.x86.*;
+import sun.jvm.hotspot.debugger.linux.ppc64.*;
 import sun.jvm.hotspot.debugger.linux.sparc.*;
 
 class LinuxThreadContextFactory {
@@ -42,6 +43,8 @@
          return new LinuxIA64ThreadContext(dbg);
       } else if (cpu.equals("sparc")) {
          return new LinuxSPARCThreadContext(dbg);
+      }  else if (cpu.equals("ppc64")) {
+          return new LinuxPPC64ThreadContext(dbg);
       } else  {
         try {
           Class tcc = Class.forName("sun.jvm.hotspot.debugger.linux." +

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/linux/ppc64/LinuxPPC64CFrame.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.debugger.linux.ppc64;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.ppc64.*;
+import sun.jvm.hotspot.debugger.linux.*;
+import sun.jvm.hotspot.debugger.cdbg.*;
+import sun.jvm.hotspot.debugger.cdbg.basic.*;
+
+final public class LinuxPPC64CFrame extends BasicCFrame {
+  // package/class internals only
+
+  public LinuxPPC64CFrame(LinuxDebugger dbg, Address sp, Address pc, int address_size) {
+    super(dbg.getCDebugger());
+    this.sp = sp;
+    this.pc = pc;
+    this.dbg = dbg;
+    this.address_size = address_size;
+  }
+
+  // override base class impl to avoid ELF parsing
+  public ClosestSymbol closestSymbolToPC() {
+    // try native lookup in debugger.
+    return dbg.lookup(dbg.getAddressValue(pc()));
+  }
+
+  public Address pc() {
+    return pc;
+  }
+
+  public Address localVariableBase() {
+    return sp;
+  }
+
+  public CFrame sender(ThreadProxy thread) {
+    if (sp == null) {
+      return null;
+    }
+
+    Address nextSP = sp.getAddressAt(0);
+    if (nextSP == null) {
+      return null;
+    }
+    Address nextPC  = sp.getAddressAt(2 * address_size);
+    if (nextPC == null) {
+      return null;
+    }
+    return new LinuxPPC64CFrame(dbg, nextSP, nextPC, address_size);
+  }
+
+  public static int PPC64_STACK_BIAS = 0;
+  private static int address_size;
+  private Address pc;
+  private Address sp;
+  private LinuxDebugger dbg;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/linux/ppc64/LinuxPPC64ThreadContext.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.debugger.linux.ppc64;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.ppc64.*;
+import sun.jvm.hotspot.debugger.linux.*;
+
+public class LinuxPPC64ThreadContext extends PPC64ThreadContext {
+  private LinuxDebugger debugger;
+
+  public LinuxPPC64ThreadContext(LinuxDebugger debugger) {
+    super();
+    this.debugger = debugger;
+  }
+
+  public void setRegisterAsAddress(int index, Address value) {
+    setRegister(index, debugger.getAddressValue(value));
+  }
+
+  public Address getRegisterAsAddress(int index) {
+    return debugger.newAddress(getRegister(index));
+  }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/ppc64/PPC64ThreadContext.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.debugger.ppc64;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.cdbg.*;
+
+/** Specifies the thread context on ppc64 platforms; only a sub-portion
+ * of the context is guaranteed to be present on all operating
+ * systems. */
+
+public abstract class PPC64ThreadContext implements ThreadContext {
+
+  // NOTE: The indices for the various registers must be maintained as
+  // listed across various operating systems. However, only a small
+  // subset of the registers' values are guaranteed to be present (and
+  // must be present for the SA's stack walking to work).
+
+  public static final int R31 = 0;
+  public static final int R30 = 1;
+  public static final int R29 = 2;
+  public static final int R28 = 3;
+  public static final int R27 = 4;
+  public static final int R26 = 5;
+  public static final int R25 = 6;
+  public static final int R24 = 7;
+  public static final int R23 = 8;
+  public static final int R22 = 9;
+  public static final int R21 = 10;
+  public static final int R20 = 11;
+  public static final int R19 = 12;
+  public static final int R18 = 13;
+  public static final int R17 = 14;
+  public static final int R16 = 15;
+  public static final int R15 = 16;
+  public static final int R14 = 17;
+  public static final int R13 = 18;
+  public static final int R12 = 19;
+  public static final int R11 = 20;
+  public static final int R10 = 21;
+  public static final int R9 = 22;
+  public static final int R8 = 23;
+  public static final int R7 = 24;
+  public static final int R6 = 25;
+  public static final int R5 = 26;
+  public static final int R4 = 27;
+  public static final int R3 = 28;
+  public static final int R2 = 29;
+  public static final int R1 = 30;
+  public static final int R0 = 31;
+  public static final int NIP = 32;
+  public static final int LR = 33;
+
+  public static final int NPRGREG = 34;
+
+  private static final String[] regNames = {
+    "r31", "r30", "r29", "r28", "r27", "r26", "r25", "r24",
+    "r23", "r22", "r21", "r20", "r19", "r18", "r17", "r16",
+    "r15", "r14", "r13", "r12", "r11", "r10", "r9",  "r8",
+    "r7",  "r6",  "r5",  "r4",  "r3",   "r2", "r1",  "r0",
+    "nip", "link"
+  };
+
+  public static final int PC = NIP;
+  public static final int SP = R1;
+
+  private long[] data;
+
+  public PPC64ThreadContext() {
+    data = new long[NPRGREG];
+  }
+
+  public int getNumRegisters() {
+    return NPRGREG;
+  }
+
+  public String getRegisterName(int index) {
+    return regNames[index];
+  }
+
+  public void setRegister(int index, long value) {
+    data[index] = value;
+  }
+
+  public long getRegister(int index) {
+    return data[index];
+  }
+
+  public CFrame getTopFrame(Debugger dbg) {
+    return null;
+  }
+
+  /** This can't be implemented in this class since we would have to
+   * tie the implementation to, for example, the debugging system */
+  public abstract void setRegisterAsAddress(int index, Address value);
+
+  /** This can't be implemented in this class since we would have to
+   * tie the implementation to, for example, the debugging system */
+  public abstract Address getRegisterAsAddress(int index);
+
+}

--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/proc/ProcDebuggerLocal.java	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/proc/ProcDebuggerLocal.java	Wed Dec 17 18:20:10 2014 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 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
@@ -32,7 +32,9 @@
 import sun.jvm.hotspot.debugger.cdbg.*;
 import sun.jvm.hotspot.debugger.proc.amd64.*;
 import sun.jvm.hotspot.debugger.proc.sparc.*;
+import sun.jvm.hotspot.debugger.proc.ppc64.*;
 import sun.jvm.hotspot.debugger.proc.x86.*;
+import sun.jvm.hotspot.debugger.ppc64.*;
 import sun.jvm.hotspot.debugger.amd64.*;
 import sun.jvm.hotspot.debugger.sparc.*;
 import sun.jvm.hotspot.debugger.x86.*;
@@ -86,6 +88,10 @@
             threadFactory = new ProcAMD64ThreadFactory(this);
             pcRegIndex = AMD64ThreadContext.RIP;
             fpRegIndex = AMD64ThreadContext.RBP;
+        } else if (cpu.equals("ppc64")) {
+            threadFactory = new ProcPPC64ThreadFactory(this);
+            pcRegIndex = PPC64ThreadContext.PC;
+            fpRegIndex = PPC64ThreadContext.SP;
         } else {
           try {
             Class tfc = Class.forName("sun.jvm.hotspot.debugger.proc." +

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/proc/ppc64/ProcPPC64Thread.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.debugger.proc.ppc64;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.ppc64.*;
+import sun.jvm.hotspot.debugger.proc.*;
+import sun.jvm.hotspot.utilities.*;
+
+public class ProcPPC64Thread implements ThreadProxy {
+  private ProcDebugger debugger;
+  private int id;
+
+  public ProcPPC64Thread(ProcDebugger debugger, Address addr) {
+    this.debugger = debugger;
+
+    // FIXME: the size here should be configurable. However, making it
+    // so would produce a dependency on the "types" package from the
+    // debugger package, which is not desired.
+    this.id = (int) addr.getCIntegerAt(0, 4, true);
+  }
+
+  public ProcPPC64Thread(ProcDebugger debugger, long id) {
+    this.debugger = debugger;
+    this.id = (int) id;
+  }
+
+  public ThreadContext getContext() throws IllegalThreadStateException {
+    ProcPPC64ThreadContext context = new ProcPPC64ThreadContext(debugger);
+    long[] regs = debugger.getThreadIntegerRegisterSet(id);
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(regs.length <= PPC64ThreadContext.NPRGREG, "size of register set is greater than " + PPC64ThreadContext.NPRGREG);
+    }
+    for (int i = 0; i < regs.length; i++) {
+      context.setRegister(i, regs[i]);
+    }
+    return context;
+  }
+
+  public boolean canSetContext() throws DebuggerException {
+    return false;
+  }
+
+  public void setContext(ThreadContext context)
+    throws IllegalThreadStateException, DebuggerException {
+    throw new DebuggerException("Unimplemented");
+  }
+
+  public String toString() {
+    return "t@" + id;
+  }
+
+  public boolean equals(Object obj) {
+    if ((obj == null) || !(obj instanceof ProcPPC64Thread)) {
+      return false;
+    }
+
+    return (((ProcPPC64Thread) obj).id == id);
+  }
+
+  public int hashCode() {
+    return id;
+  }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/proc/ppc64/ProcPPC64ThreadContext.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.debugger.proc.ppc64;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.ppc64.*;
+import sun.jvm.hotspot.debugger.proc.*;
+
+public class ProcPPC64ThreadContext extends PPC64ThreadContext {
+  private ProcDebugger debugger;
+
+  public ProcPPC64ThreadContext(ProcDebugger debugger) {
+    super();
+    this.debugger = debugger;
+  }
+
+  public void setRegisterAsAddress(int index, Address value) {
+    setRegister(index, debugger.getAddressValue(value));
+  }
+
+  public Address getRegisterAsAddress(int index) {
+    return debugger.newAddress(getRegister(index));
+  }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/proc/ppc64/ProcPPC64ThreadFactory.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.debugger.proc.ppc64;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.proc.*;
+
+public class ProcPPC64ThreadFactory implements ProcThreadFactory {
+  private ProcDebugger debugger;
+
+  public ProcPPC64ThreadFactory(ProcDebugger debugger) {
+    this.debugger = debugger;
+  }
+
+  public ThreadProxy createThreadWrapper(Address threadIdentifierAddr) {
+    return new ProcPPC64Thread(debugger, threadIdentifierAddr);
+  }
+
+  public ThreadProxy createThreadWrapper(long id) {
+    return new ProcPPC64Thread(debugger, id);
+  }
+}

--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerClient.java	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerClient.java	Wed Dec 17 18:20:10 2014 +0100
@@ -33,6 +33,7 @@
 import sun.jvm.hotspot.debugger.remote.sparc.*;
 import sun.jvm.hotspot.debugger.remote.x86.*;
 import sun.jvm.hotspot.debugger.remote.amd64.*;
+import sun.jvm.hotspot.debugger.remote.ppc64.*;
 
 /** An implementation of Debugger which wraps a
     RemoteDebugger, providing remote debugging via RMI.
@@ -70,6 +71,11 @@
         cachePageSize = 4096;
         cacheNumPages = parseCacheNumPagesProperty(cacheSize / cachePageSize);
         unalignedAccessesOkay = true;
+      } else if (cpu.equals("ppc64")) {
+        threadFactory = new RemotePPC64ThreadFactory(this);
+        cachePageSize = 4096;
+        cacheNumPages = parseCacheNumPagesProperty(cacheSize / cachePageSize);
+        unalignedAccessesOkay = true;
       } else {
         try {
           Class tf = Class.forName("sun.jvm.hotspot.debugger.remote." +

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/ppc64/RemotePPC64Thread.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.debugger.remote.ppc64;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.ppc64.*;
+import sun.jvm.hotspot.debugger.remote.*;
+import sun.jvm.hotspot.utilities.*;
+
+public class RemotePPC64Thread extends RemoteThread  {
+  public RemotePPC64Thread(RemoteDebuggerClient debugger, Address addr) {
+    super(debugger, addr);
+  }
+
+  public RemotePPC64Thread(RemoteDebuggerClient debugger, long id) {
+    super(debugger, id);
+  }
+
+  public ThreadContext getContext() throws IllegalThreadStateException {
+    RemotePPC64ThreadContext context = new RemotePPC64ThreadContext(debugger);
+    long[] regs = (addr != null)? debugger.getThreadIntegerRegisterSet(addr) :
+                                  debugger.getThreadIntegerRegisterSet(id);
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(regs.length == PPC64ThreadContext.NPRGREG, "size of register set must match");
+    }
+    for (int i = 0; i < regs.length; i++) {
+      context.setRegister(i, regs[i]);
+    }
+    return context;
+  }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/ppc64/RemotePPC64ThreadContext.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.debugger.remote.ppc64;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.ppc64.*;
+import sun.jvm.hotspot.debugger.remote.*;
+
+public class RemotePPC64ThreadContext extends PPC64ThreadContext {
+  private RemoteDebuggerClient debugger;
+
+  public RemotePPC64ThreadContext(RemoteDebuggerClient debugger) {
+    super();
+    this.debugger = debugger;
+  }
+
+  /** This can't be implemented in this class since we would have to
+      tie the implementation to, for example, the debugging system */
+  public void setRegisterAsAddress(int index, Address value) {
+    setRegister(index, debugger.getAddressValue(value));
+  }
+
+  /** This can't be implemented in this class since we would have to
+      tie the implementation to, for example, the debugging system */
+  public Address getRegisterAsAddress(int index) {
+    return debugger.newAddress(getRegister(index));
+  }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/ppc64/RemotePPC64ThreadFactory.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.debugger.remote.ppc64;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.remote.*;
+
+public class RemotePPC64ThreadFactory implements RemoteThreadFactory {
+  private RemoteDebuggerClient debugger;
+
+  public RemotePPC64ThreadFactory(RemoteDebuggerClient debugger) {
+    this.debugger = debugger;
+  }
+
+  public ThreadProxy createThreadWrapper(Address threadIdentifierAddr) {
+    return new RemotePPC64Thread(debugger, threadIdentifierAddr);
+  }
+
+  public ThreadProxy createThreadWrapper(long id) {
+    return new RemotePPC64Thread(debugger, id);
+  }
+}

--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/Threads.java	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/Threads.java	Wed Dec 17 18:20:10 2014 +0100
@@ -25,6 +25,7 @@
 package sun.jvm.hotspot.runtime;
 
 import java.util.*;
+
 import sun.jvm.hotspot.debugger.*;
 import sun.jvm.hotspot.types.*;
 import sun.jvm.hotspot.runtime.solaris_sparc.SolarisSPARCJavaThreadPDAccess;
@@ -34,6 +35,7 @@
 import sun.jvm.hotspot.runtime.win32_x86.Win32X86JavaThreadPDAccess;
 import sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess;
 import sun.jvm.hotspot.runtime.linux_amd64.LinuxAMD64JavaThreadPDAccess;
+import sun.jvm.hotspot.runtime.linux_ppc64.LinuxPPC64JavaThreadPDAccess;
 import sun.jvm.hotspot.runtime.linux_sparc.LinuxSPARCJavaThreadPDAccess;
 import sun.jvm.hotspot.runtime.bsd_x86.BsdX86JavaThreadPDAccess;
 import sun.jvm.hotspot.runtime.bsd_amd64.BsdAMD64JavaThreadPDAccess;
@@ -87,6 +89,8 @@
                 access = new LinuxAMD64JavaThreadPDAccess();
             } else if (cpu.equals("sparc")) {
                 access = new LinuxSPARCJavaThreadPDAccess();
+            } else if (cpu.equals("ppc64")) {
+                access = new LinuxPPC64JavaThreadPDAccess();
             } else {
               try {
                 access = (JavaThreadPDAccess)

--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/VFrame.java	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/VFrame.java	Wed Dec 17 18:20:10 2014 +0100
@@ -78,7 +78,7 @@
         }
 
         if (f.isRuntimeFrame()) {
-          // This is a conversion frame. Skip this frame and try again.
+          // This is a conversion frame or a Stub routine. Skip this frame and try again.
           RegisterMap tempMap = regMap.copy();
           Frame s = f.sender(tempMap);
           return newVFrame(s, tempMap, thread, unsafe, false);

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/linux_ppc64/LinuxPPC64JavaThreadPDAccess.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.runtime.linux_ppc64;
+
+import java.io.*;
+import java.util.*;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.ppc64.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.runtime.ppc64.*;
+import sun.jvm.hotspot.types.*;
+import sun.jvm.hotspot.utilities.*;
+
+public class LinuxPPC64JavaThreadPDAccess implements JavaThreadPDAccess {
+  private static AddressField  osThreadField;
+
+  // Field from OSThread
+  private static CIntegerField osThreadThreadIDField;
+
+  // This is currently unneeded but is being kept in case we change
+  // the currentFrameGuess algorithm
+  private static final long GUESS_SCAN_RANGE = 128 * 1024;
+
+  static {
+    VM.registerVMInitializedObserver(new Observer() {
+        public void update(Observable o, Object data) {
+          initialize(VM.getVM().getTypeDataBase());
+        }
+      });
+  }
+
+  private static synchronized void initialize(TypeDataBase db) {
+    Type type = db.lookupType("JavaThread");
+    osThreadField = type.getAddressField("_osthread");
+
+    Type osThreadType = db.lookupType("OSThread");
+    osThreadThreadIDField = osThreadType.getCIntegerField("_thread_id");
+  }
+
+  public Address getLastJavaFP(Address addr) {
+    return null;
+  }
+
+  public Address getLastJavaPC(Address addr) {
+    return null;
+  }
+
+  public Address getBaseOfStackPointer(Address addr) {
+    return null;
+  }
+
+  public Frame getLastFramePD(JavaThread thread, Address addr) {
+    Address fp = thread.getLastJavaFP();
+    if (fp == null) {
+      return null; // no information
+    }
+    return new PPC64Frame(thread.getLastJavaSP(), fp);
+  }
+
+  public RegisterMap newRegisterMap(JavaThread thread, boolean updateMap) {
+    return new PPC64RegisterMap(thread, updateMap);
+  }
+
+  public Frame getCurrentFrameGuess(JavaThread thread, Address addr) {
+    ThreadProxy t = getThreadProxy(addr);
+    PPC64ThreadContext context = (PPC64ThreadContext) t.getContext();
+    PPC64CurrentFrameGuess guesser = new PPC64CurrentFrameGuess(context, thread);
+    if (!guesser.run(GUESS_SCAN_RANGE)) {
+      return null;
+    }
+    if (guesser.getPC() == null) {
+      return new PPC64Frame(guesser.getSP(), guesser.getFP());
+    } else {
+      return new PPC64Frame(guesser.getSP(), guesser.getFP(), guesser.getPC());
+    }
+  }
+
+  public void printThreadIDOn(Address addr, PrintStream tty) {
+    tty.print(getThreadProxy(addr));
+  }
+
+  public void printInfoOn(Address threadAddr, PrintStream tty) {
+    tty.print("Thread id: ");
+    printThreadIDOn(threadAddr, tty);
+    // tty.println("\nPostJavaState: " + getPostJavaState(threadAddr));
+  }
+
+  public Address getLastSP(Address addr) {
+    ThreadProxy t = getThreadProxy(addr);
+    PPC64ThreadContext context = (PPC64ThreadContext) t.getContext();
+    return context.getRegisterAsAddress(PPC64ThreadContext.SP);
+  }
+
+  public Address getLastFP(Address addr) {
+    return getLastSP(addr).getAddressAt(0);
+  }
+
+  public ThreadProxy getThreadProxy(Address addr) {
+    // Addr is the address of the JavaThread.
+    // Fetch the OSThread (for now and for simplicity, not making a
+    // separate "OSThread" class in this package)
+    Address osThreadAddr = osThreadField.getValue(addr);
+    // Get the address of the _thread_id from the OSThread
+    Address threadIdAddr = osThreadAddr.addOffsetTo(osThreadThreadIDField.getOffset());
+
+    JVMDebugger debugger = VM.getVM().getDebugger();
+    return debugger.getThreadForIdentifierAddress(threadIdAddr);
+  }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/ppc64/PPC64CurrentFrameGuess.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,179 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.runtime.ppc64;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.ppc64.*;
+import sun.jvm.hotspot.code.*;
+import sun.jvm.hotspot.interpreter.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.runtime.ppc64.*;
+
+/** <P> Should be able to be used on all ppc64 platforms we support
+    (Linux/ppc64) to implement JavaThread's "currentFrameGuess()"
+    functionality. Input is a PPC64ThreadContext; output is SP, FP,
+    and PC for an PPC64Frame. Instantiation of the PPC64Frame is left
+    to the caller, since we may need to subclass PPC64Frame to support
+    signal handler frames on Unix platforms. </P>
+ */
+
+public class PPC64CurrentFrameGuess {
+  private PPC64ThreadContext context;
+  private JavaThread       thread;
+  private Address          spFound;
+  private Address          fpFound;
+  private Address          pcFound;
+
+  private static final boolean DEBUG;
+  static {
+    DEBUG = System.getProperty("sun.jvm.hotspot.runtime.ppc64.PPC64Frame.DEBUG") != null;
+  }
+
+  public PPC64CurrentFrameGuess(PPC64ThreadContext context,
+                              JavaThread thread) {
+    this.context = context;
+    this.thread  = thread;
+  }
+
+  /** Returns false if not able to find a frame within a reasonable range. */
+  public boolean run(long regionInBytesToSearch) {
+    Address sp = context.getRegisterAsAddress(PPC64ThreadContext.SP);
+    Address pc = context.getRegisterAsAddress(PPC64ThreadContext.PC);
+    if (sp == null) {
+      // Bail out if no last java frame either
+      if (thread.getLastJavaSP() != null) {
+        Address javaSP = thread.getLastJavaSP();
+        Address javaFP = javaSP.getAddressAt(0);
+        setValues(javaSP, javaFP, null);
+        return true;
+      }
+      return false;
+    }
+    /* There is no frame pointer per se for the ppc64 architecture.  To mirror
+     * the behavior of the VM frame manager, we set fp to be the caller's (i.e., "sender's")
+     * stack pointer, which is the back chain value contained in our sp.
+     */
+    Address fp = sp.getAddressAt(0);
+    setValues(null, null, null); // Assume we're not going to find anything
+
+    VM vm = VM.getVM();
+    if (vm.isJavaPCDbg(pc)) {
+      if (vm.isClientCompiler()) {
+        // Topmost frame is a Java frame.
+        if (DEBUG) {
+          System.out.println("CurrentFrameGuess: choosing compiler frame: sp = " +
+                             sp + ", fp = " + fp + ", pc = " + pc);
+        }
+        setValues(sp, fp, pc);
+        return true;
+      } else {
+        if (vm.getInterpreter().contains(pc)) {
+          if (DEBUG) {
+            System.out.println("CurrentFrameGuess: choosing interpreter frame: sp = " +
+                               sp + ", fp = " + fp + ", pc = " + pc);
+          }
+          setValues(sp, fp, pc);
+          return true;
+        }
+
+        // This algorithm takes the current PC as a given and tries to
+        // find the correct corresponding SP by walking up the stack
+        // and repeatedly performing stackwalks (very inefficient).
+        for (long offset = 0;
+             offset < regionInBytesToSearch;
+             offset += vm.getAddressSize()) {
+          try {
+            Address curSP = sp.addOffsetTo(offset);
+            fp = curSP.getAddressAt(0);
+            Frame frame = new PPC64Frame(curSP, fp, pc);
+            RegisterMap map = thread.newRegisterMap(false);
+            while (frame != null) {
+              if (frame.isEntryFrame() && frame.entryFrameIsFirst()) {
+                // We were able to traverse all the way to the
+                // bottommost Java frame.
+                // This sp looks good. Keep it.
+                if (DEBUG) {
+                  System.out.println("CurrentFrameGuess: Choosing sp = " + curSP + ", pc = " + pc);
+                }
+                setValues(curSP, fp, pc);
+                return true;
+              }
+              frame = frame.sender(map);
+            }
+          } catch (Exception e) {
+            if (DEBUG) {
+              System.out.println("CurrentFrameGuess: Exception " + e + " at offset " + offset);
+            }
+            // Bad SP. Try another.
+          }
+        }
+
+        // Were not able to find a plausible SP to go with this PC.
+        // Bail out.
+        return false;
+
+      }
+    } else {
+      // If the current program counter was not known to us as a Java
+      // PC, we currently assume that we are in the run-time system
+      // and attempt to look to thread-local storage for saved java SP.
+      // Note that if this is null (because we were, in fact,
+      // in Java code, i.e., vtable stubs or similar, and the SA
+      // didn't have enough insight into the target VM to understand
+      // that) then we are going to lose the entire stack trace for
+      // the thread, which is sub-optimal. FIXME.
+
+      if (thread.getLastJavaSP() == null) {
+        if (DEBUG) {
+          System.out.println("CurrentFrameGuess: last java sp is null");
+        }
+        return false; // No known Java frames on stack
+      }
+
+      Address javaSP = thread.getLastJavaSP();
+      Address javaFP = javaSP.getAddressAt(0);
+      Address javaPC = thread.getLastJavaPC();
+      if (DEBUG) {
+        System.out.println("CurrentFrameGuess: choosing last Java frame: sp = " +
+                           javaSP + ", fp = " + javaFP + ", pc = " + javaPC);
+      }
+      setValues(javaSP, javaFP, javaPC);
+      return true;
+    }
+  }
+
+  public Address getSP() { return spFound; }
+  public Address getFP() { return fpFound; }
+  /** May be null if getting values from thread-local storage; take
+      care to call the correct PPC64Frame constructor to recover this if
+      necessary */
+  public Address getPC() { return pcFound; }
+
+  private void setValues(Address sp, Address fp, Address pc) {
+    spFound = sp;
+    fpFound = fp;
+    pcFound = pc;
+  }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/ppc64/PPC64Frame.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,513 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.runtime.ppc64;
+
+import java.util.*;
+import sun.jvm.hotspot.code.*;
+import sun.jvm.hotspot.compiler.*;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.oops.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.types.*;
+import sun.jvm.hotspot.utilities.*;
+
+/** Specialization of and implementation of abstract methods of the
+    Frame class for the ppc64 family of CPUs. */
+
+public class PPC64Frame extends Frame {
+  private static final boolean DEBUG;
+  static {
+    DEBUG = System.getProperty("sun.jvm.hotspot.runtime.ppc64.PPC64Frame.DEBUG") != null;
+  }
+
+  // All frames
+  private static final int SENDER_SP_OFFSET           =  0;
+
+  // Interpreter frames
+  private static final int INTERPRETER_FRAME_MIRROR_OFFSET = -3; // for native calls only
+  private static final int INTERPRETER_FRAME_SENDER_SP_OFFSET = -4;
+  private static final int INTERPRETER_FRAME_LAST_SP_OFFSET = INTERPRETER_FRAME_SENDER_SP_OFFSET - 1;
+  private static final int INTERPRETER_FRAME_MDX_OFFSET = INTERPRETER_FRAME_LAST_SP_OFFSET -1;
+  private static final int INTERPRETER_FRAME_ESP_OFFSET = INTERPRETER_FRAME_MDX_OFFSET - 1;
+  private static final int INTERPRETER_FRAME_BCX_OFFSET = INTERPRETER_FRAME_ESP_OFFSET - 1;
+  private static final int INTERPRETER_FRAME_CACHE_OFFSET =INTERPRETER_FRAME_BCX_OFFSET - 1;
+  private static final int INTERPRETER_FRAME_MONITORS_OFFSET = INTERPRETER_FRAME_CACHE_OFFSET - 1;
+  private static final int INTERPRETER_FRAME_LOCALS_OFFSET = INTERPRETER_FRAME_MONITORS_OFFSET - 1;
+  private static final int INTERPRETER_FRAME_METHOD_OFFSET = INTERPRETER_FRAME_LOCALS_OFFSET - 1;
+  private static final int INTERPRETER_FRAME_INITIAL_SP_OFFSET = INTERPRETER_FRAME_BCX_OFFSET - 1; // FIXME: probably wrong, but unused anyway
+  private static final int INTERPRETER_FRAME_MONITOR_BLOCK_TOP_OFFSET = INTERPRETER_FRAME_INITIAL_SP_OFFSET;
+  private static final int INTERPRETER_FRAME_MONITOR_BLOCK_BOTTOM_OFFSET = INTERPRETER_FRAME_INITIAL_SP_OFFSET;
+
+  // Entry frames
+  private static int ENTRY_FRAME_CALL_WRAPPER_OFFSET;
+
+  // Native frames
+  private static int NATIVE_FRAME_INITIAL_PARAM_OFFSET;
+
+
+  static {
+    VM.registerVMInitializedObserver(new Observer() {
+      public void update(Observable o, Object data) {
+        initialize(VM.getVM().getTypeDataBase());
+      }
+    });
+  }
+
+  private static synchronized void initialize(TypeDataBase db) {
+    int abi_minframe_size = db.lookupIntConstant("frame::abi_minframe_size").intValue();
+    int entry_frame_locals_size = db.lookupIntConstant("frame::entry_frame_locals_size").intValue();
+    int wordLength = (int) VM.getVM().getAddressSize();
+    NATIVE_FRAME_INITIAL_PARAM_OFFSET = -abi_minframe_size/wordLength;
+    ENTRY_FRAME_CALL_WRAPPER_OFFSET = -entry_frame_locals_size/wordLength;
+  }
+
+
+  // an additional field beyond sp and pc:
+  Address raw_fp; // frame pointer
+  private Address raw_unextendedSP;
+
+  private PPC64Frame() {
+  }
+
+  private void adjustForDeopt() {
+    if ( pc != null) {
+      // Look for a deopt pc and if it is deopted convert to original pc
+      CodeBlob cb = VM.getVM().getCodeCache().findBlob(pc);
+      if (cb != null && cb.isJavaMethod()) {
+        NMethod nm = (NMethod) cb;
+        if (pc.equals(nm.deoptHandlerBegin())) {
+          if (Assert.ASSERTS_ENABLED) {
+            Assert.that(this.getUnextendedSP() != null, "null SP in Java frame");
+          }
+          // adjust pc if frame is deoptimized.
+          pc = this.getUnextendedSP().getAddressAt(nm.origPCOffset());
+          deoptimized = true;
+        }
+      }
+    }
+  }
+
+  public PPC64Frame(Address raw_sp, Address raw_fp, Address pc) {
+    this.raw_sp = raw_sp;
+    this.raw_unextendedSP = raw_sp;
+    if (raw_fp == null) {
+      this.raw_fp = raw_sp.getAddressAt(0);
+    } else {
+      this.raw_fp = raw_fp;
+    }
+    if (pc == null) {
+      this.pc = raw_sp.getAddressAt(2 * VM.getVM().getAddressSize());
+    } else {
+      this.pc = pc;
+    }
+    adjustUnextendedSP();
+
+    // Frame must be fully constructed before this call
+    adjustForDeopt();
+
+    if (DEBUG) {
+      System.out.println("PPC64Frame(sp, fp, pc): " + this);
+      dumpStack();
+    }
+  }
+
+  public PPC64Frame(Address raw_sp, Address raw_fp) {
+    this.raw_sp = raw_sp;
+    this.raw_unextendedSP = raw_sp;
+    if (raw_fp == null) {
+      this.raw_fp = raw_sp.getAddressAt(0);
+    } else {
+      this.raw_fp = raw_fp;
+    }
+    this.pc = raw_sp.getAddressAt(2 * VM.getVM().getAddressSize());
+    adjustUnextendedSP();
+
+    // Frame must be fully constructed before this call
+    adjustForDeopt();
+
+    if (DEBUG) {
+      System.out.println("PPC64Frame(sp, fp): " + this);
+      dumpStack();
+    }
+  }
+
+  public PPC64Frame(Address raw_sp, Address raw_unextendedSp, Address raw_fp, Address pc) {
+    this.raw_sp = raw_sp;
+    this.raw_unextendedSP = raw_unextendedSp;
+    if (raw_fp == null) {
+      this.raw_fp = raw_sp.getAddressAt(0);
+    } else {
+      this.raw_fp = raw_fp;
+    }
+    if (pc == null) {
+      this.pc = raw_sp.getAddressAt(2 * VM.getVM().getAddressSize());
+    } else {
+      this.pc = pc;
+    }
+    adjustUnextendedSP();
+
+    // Frame must be fully constructed before this call
+    adjustForDeopt();
+
+    if (DEBUG) {
+      System.out.println("PPC64Frame(sp, unextendedSP, fp, pc): " + this);
+      dumpStack();
+    }
+
+  }
+
+  public Object clone() {
+    PPC64Frame frame = new PPC64Frame();
+    frame.raw_sp = raw_sp;
+    frame.raw_unextendedSP = raw_unextendedSP;
+    frame.raw_fp = raw_fp;
+    frame.pc = pc;
+    frame.deoptimized = deoptimized;
+    return frame;
+  }
+
+  public boolean equals(Object arg) {
+    if (arg == null) {
+      return false;
+    }
+
+    if (!(arg instanceof PPC64Frame)) {
+      return false;
+    }
+
+    PPC64Frame other = (PPC64Frame) arg;
+
+    return (AddressOps.equal(getSP(), other.getSP()) &&
+        AddressOps.equal(getUnextendedSP(), other.getUnextendedSP()) &&
+        AddressOps.equal(getFP(), other.getFP()) &&
+        AddressOps.equal(getPC(), other.getPC()));
+  }
+
+  public int hashCode() {
+    if (raw_sp == null) {
+      return 0;
+    }
+
+    return raw_sp.hashCode();
+  }
+
+  public String toString() {
+    return "sp: " + (getSP() == null ? "null" : getSP().toString()) +
+        ", unextendedSP: " + (getUnextendedSP() == null ? "null" : getUnextendedSP().toString()) +
+        ", fp: " + (getFP() == null ? "null" : getFP().toString()) +
+        ", pc: " + (pc == null ? "null" : pc.toString());
+  }
+
+  // accessors for the instance variables
+  public Address getFP() { return raw_fp; }
+  public Address getSP() { return raw_sp; }
+  public Address getID() { return raw_sp; }
+
+  // FIXME: not implemented yet (should be done for Solaris/PPC64)
+  public boolean isSignalHandlerFrameDbg() { return false; }
+  public int     getSignalNumberDbg()      { return 0;     }
+  public String  getSignalNameDbg()        { return null;  }
+
+  public boolean isInterpretedFrameValid() {
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(isInterpretedFrame(), "Not an interpreted frame");
+    }
+
+    // These are reasonable sanity checks
+    if (getFP() == null || getFP().andWithMask(0x3) != null) {
+      return false;
+    }
+
+    if (getSP() == null || getSP().andWithMask(0x3) != null) {
+      return false;
+    }
+
+    // These are hacks to keep us out of trouble.
+    // The problem with these is that they mask other problems
+    if (getFP().lessThanOrEqual(getSP())) {
+      // this attempts to deal with unsigned comparison above
+      return false;
+    }
+
+    if (getFP().minus(getSP()) > 4096 * VM.getVM().getAddressSize()) {
+      // stack frames shouldn't be large.
+      return false;
+    }
+
+    return true;
+  }
+
+  // FIXME: not applicable in current system
+  //  void    patch_pc(Thread* thread, address pc);
+
+  public Frame sender(RegisterMap regMap, CodeBlob cb) {
+    PPC64RegisterMap map = (PPC64RegisterMap) regMap;
+
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(map != null, "map must be set");
+    }
+
+    // Default is we done have to follow them. The sender_for_xxx will
+    // update it accordingly
+    map.setIncludeArgumentOops(false);
+
+    if (isEntryFrame()) return senderForEntryFrame(map);
+    if (isInterpretedFrame()) return senderForInterpreterFrame(map);
+
+    if(cb == null) {
+      cb = VM.getVM().getCodeCache().findBlob(getPC());
+    } else {
+      if (Assert.ASSERTS_ENABLED) {
+        Assert.that(cb.equals(VM.getVM().getCodeCache().findBlob(getPC())), "Must be the same");
+      }
+    }
+
+    if (cb != null) {
+      return senderForCompiledFrame(map, cb);
+    }
+
+    // Must be native-compiled frame, i.e. the marshaling code for native
+    // methods that exists in the core system.
+    return new PPC64Frame(getSenderSP(), getLink(), getSenderPC());
+  }
+
+  private Frame senderForEntryFrame(PPC64RegisterMap map) {
+    if (DEBUG) {
+      System.out.println("senderForEntryFrame");
+    }
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(map != null, "map must be set");
+    }
+    // Java frame called from C; skip all C frames and return top C
+    // frame of that chunk as the sender
+    PPC64JavaCallWrapper jcw = (PPC64JavaCallWrapper) getEntryFrameCallWrapper();
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(!entryFrameIsFirst(), "next Java fp must be non zero");
+      Assert.that(jcw.getLastJavaSP().greaterThan(getSP()), "must be above this frame on stack");
+    }
+    PPC64Frame fr;
+    if (jcw.getLastJavaPC() != null) {
+      fr = new PPC64Frame(jcw.getLastJavaSP(), jcw.getLastJavaFP(), jcw.getLastJavaPC());
+    } else {
+      fr = new PPC64Frame(jcw.getLastJavaSP(), jcw.getLastJavaFP());
+    }
+    map.clear();
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(map.getIncludeArgumentOops(), "should be set by clear");
+    }
+    return fr;
+  }
+
+  //------------------------------------------------------------------------------
+  // frame::adjust_unextended_sp
+  private void adjustUnextendedSP() {
+    raw_unextendedSP = getFP();
+  }
+  private Frame senderForInterpreterFrame(PPC64RegisterMap map) {
+    if (DEBUG) {
+      System.out.println("senderForInterpreterFrame");
+    }
+    Address unextendedSP = addressOfStackSlot(INTERPRETER_FRAME_SENDER_SP_OFFSET).getAddressAt(0);
+    Address sp = getSenderSP();
+
+    return new PPC64Frame(sp, unextendedSP, getLink(), getSenderPC());
+  }
+
+
+  private Frame senderForCompiledFrame(PPC64RegisterMap map, CodeBlob cb) {
+    if (DEBUG) {
+      System.out.println("senderForCompiledFrame");
+    }
+
+    //
+    // NOTE: some of this code is (unfortunately) duplicated in PPC64CurrentFrameGuess
+    //
+
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(map != null, "map must be set");
+    }
+
+    // frame owned by optimizing compiler
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(cb.getFrameSize() >= 0, "must have non-zero frame size");
+    }
+    Address senderSP = getSenderSP();
+
+    Address senderPC = getSenderPC();
+
+    if (map.getUpdateMap()) {
+      // Tell GC to use argument oopmaps for some runtime stubs that need it.
+      // For C1, the runtime stub might not have oop maps, so set this flag
+      // outside of update_register_map.
+      map.setIncludeArgumentOops(cb.callerMustGCArguments());
+
+      if (cb.getOopMaps() != null) {
+        OopMapSet.updateRegisterMap(this, cb, map, true);
+      }
+    }
+
+    return new PPC64Frame(senderSP, getLink(), senderPC);
+  }
+
+  protected boolean hasSenderPD() {
+    // FIXME
+    return true;
+  }
+
+  public long frameSize() {
+    return (getSenderSP().minus(getSP()) / VM.getVM().getAddressSize());
+  }
+
+  public Address getLink() {
+    return getSenderSP().getAddressAt(0);
+  }
+
+  public Address getUnextendedSP() { return raw_unextendedSP; }
+
+  // Return address:
+  public Address getSenderPC()     { return getSenderSP().getAddressAt(2 * VM.getVM().getAddressSize()); }
+
+  // return address of param, zero origin index.
+  // MPJ note:   Appears to be unused.
+  public Address getNativeParamAddr(int idx) {
+    return null;
+    // return addressOfStackSlot(NATIVE_FRAME_INITIAL_PARAM_OFFSET + idx);
+  }
+
+  public Address getSenderSP()     { return getFP(); }
+  public Address addressOfInterpreterFrameLocals() {
+    return addressOfStackSlot(INTERPRETER_FRAME_LOCALS_OFFSET);
+  }
+
+  private Address addressOfInterpreterFrameBCX() {
+    return addressOfStackSlot(INTERPRETER_FRAME_BCX_OFFSET);
+  }
+
+  public int getInterpreterFrameBCI() {
+    // FIXME: this is not atomic with respect to GC and is unsuitable
+    // for use in a non-debugging, or reflective, system. Need to
+    // figure out how to express this.
+    Address bcp = addressOfInterpreterFrameBCX().getAddressAt(0);
+    Address methodHandle = addressOfInterpreterFrameMethod().getAddressAt(0);
+    Method method = (Method)Metadata.instantiateWrapperFor(methodHandle);
+    return bcpToBci(bcp, method);
+  }
+
+  public Address addressOfInterpreterFrameMDX() {
+    return addressOfStackSlot(INTERPRETER_FRAME_MDX_OFFSET);
+  }
+
+  // FIXME
+  //inline int frame::interpreter_frame_monitor_size() {
+  //  return BasicObjectLock::size();
+  //}
+
+  // expression stack
+  // (the max_stack arguments are used by the GC; see class FrameClosure)
+
+  public Address addressOfInterpreterFrameExpressionStack() {
+    Address monitorEnd = interpreterFrameMonitorEnd().address();
+    return monitorEnd.addOffsetTo(-1 * VM.getVM().getAddressSize());
+  }
+
+  public int getInterpreterFrameExpressionStackDirection() { return -1; }
+
+  // top of expression stack
+  public Address addressOfInterpreterFrameTOS() {
+    return getSP();
+  }
+
+  /** Expression stack from top down */
+  public Address addressOfInterpreterFrameTOSAt(int slot) {
+    return addressOfInterpreterFrameTOS().addOffsetTo(slot * VM.getVM().getAddressSize());
+  }
+
+  public Address getInterpreterFrameSenderSP() {
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(isInterpretedFrame(), "interpreted frame expected");
+    }
+    return addressOfStackSlot(INTERPRETER_FRAME_SENDER_SP_OFFSET).getAddressAt(0);
+  }
+
+  // Monitors
+  public BasicObjectLock interpreterFrameMonitorBegin() {
+    return new BasicObjectLock(addressOfStackSlot(INTERPRETER_FRAME_MONITOR_BLOCK_BOTTOM_OFFSET));
+  }
+
+  public BasicObjectLock interpreterFrameMonitorEnd() {
+    Address result = addressOfStackSlot(INTERPRETER_FRAME_MONITOR_BLOCK_TOP_OFFSET).getAddressAt(0);
+    if (Assert.ASSERTS_ENABLED) {
+      // make sure the pointer points inside the frame
+      Assert.that(AddressOps.gt(getFP(), result), "result must <  than frame pointer");
+      Assert.that(AddressOps.lte(getSP(), result), "result must >= than stack pointer");
+    }
+    return new BasicObjectLock(result);
+  }
+
+  public int interpreterFrameMonitorSize() {
+    return BasicObjectLock.size();
+  }
+
+  // Method
+  public Address addressOfInterpreterFrameMethod() {
+    return addressOfStackSlot(INTERPRETER_FRAME_METHOD_OFFSET);
+  }
+
+  // Constant pool cache
+  public Address addressOfInterpreterFrameCPCache() {
+    return addressOfStackSlot(INTERPRETER_FRAME_CACHE_OFFSET);
+  }
+
+  // Entry frames
+  public JavaCallWrapper getEntryFrameCallWrapper() {
+    return new PPC64JavaCallWrapper(addressOfStackSlot(ENTRY_FRAME_CALL_WRAPPER_OFFSET).getAddressAt(0));
+  }
+
+  protected Address addressOfSavedOopResult() {
+    // offset is 2 for compiler2 and 3 for compiler1
+    return getSP().addOffsetTo((VM.getVM().isClientCompiler() ? 2 : 3) *
+        VM.getVM().getAddressSize());
+  }
+
+  protected Address addressOfSavedReceiver() {
+    return getSP().addOffsetTo(-4 * VM.getVM().getAddressSize());
+  }
+
+  private void dumpStack() {
+    if (getFP() != null) {
+      for (Address addr = getSP().addOffsetTo(-5 * VM.getVM().getAddressSize());
+          AddressOps.lte(addr, getFP().addOffsetTo(5 * VM.getVM().getAddressSize()));
+          addr = addr.addOffsetTo(VM.getVM().getAddressSize())) {
+        System.out.println(addr + ": " + addr.getAddressAt(0));
+      }
+    } else {
+      for (Address addr = getSP().addOffsetTo(-5 * VM.getVM().getAddressSize());
+          AddressOps.lte(addr, getSP().addOffsetTo(20 * VM.getVM().getAddressSize()));
+          addr = addr.addOffsetTo(VM.getVM().getAddressSize())) {
+        System.out.println(addr + ": " + addr.getAddressAt(0));
+      }
+    }
+  }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/ppc64/PPC64JavaCallWrapper.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.runtime.ppc64;
+
+import java.util.*;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.types.*;
+import sun.jvm.hotspot.runtime.*;
+
+public class PPC64JavaCallWrapper extends JavaCallWrapper {
+
+  public PPC64JavaCallWrapper(Address addr) {
+    super(addr);
+  }
+
+  public Address getLastJavaFP() {
+    return null;
+  }
+
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/ppc64/PPC64RegisterMap.java	Wed Dec 17 18:20:10 2014 +0100
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 20014, 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.
+ *
+ */
+
+package sun.jvm.hotspot.runtime.ppc64;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.runtime.*;
+
+public class PPC64RegisterMap extends RegisterMap {
+
+  /** This is the only public constructor */
+  public PPC64RegisterMap(JavaThread thread, boolean updateMap) {
+    super(thread, updateMap);
+  }
+
+  protected PPC64RegisterMap(RegisterMap map) {
+    super(map);
+  }
+
+  public Object clone() {
+    PPC64RegisterMap retval = new PPC64RegisterMap(this);
+    return retval;
+  }
+
+  // no PD state to clear or copy:
+  protected void clearPD() {}
+  protected void initializePD() {}
+  protected void initializeFromPD(RegisterMap map) {}
+  protected Address getLocationPD(VMReg reg) { return null; }
+}

--- a/hotspot/make/linux/makefiles/sa.make	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/make/linux/makefiles/sa.make	Wed Dec 17 18:20:10 2014 +0100
@@ -109,6 +109,7 @@
 	$(QUIETLY) $(REMOTE) $(RUN.JAVAH) -classpath $(SA_CLASSDIR) -d $(GENERATED) -jni sun.jvm.hotspot.debugger.x86.X86ThreadContext
 	$(QUIETLY) $(REMOTE) $(RUN.JAVAH) -classpath $(SA_CLASSDIR) -d $(GENERATED) -jni sun.jvm.hotspot.debugger.amd64.AMD64ThreadContext
 	$(QUIETLY) $(REMOTE) $(RUN.JAVAH) -classpath $(SA_CLASSDIR) -d $(GENERATED) -jni sun.jvm.hotspot.debugger.sparc.SPARCThreadContext
+	$(QUIETLY) $(REMOTE) $(RUN.JAVAH) -classpath $(SA_CLASSDIR) -d $(GENERATED) -jni sun.jvm.hotspot.debugger.ppc64.PPC64ThreadContext
 	$(QUIETLY) $(REMOTE) $(RUN.JAVAH) -classpath $(SA_CLASSDIR) -d $(GENERATED) -jni sun.jvm.hotspot.asm.Disassembler
 
 clean:

--- a/hotspot/make/sa.files	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/make/sa.files	Wed Dec 17 18:20:10 2014 +0100
@@ -51,16 +51,20 @@
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/dummy/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/linux/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/linux/amd64/*.java \
+$(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/linux/ppc64/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/linux/x86/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/linux/sparc/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/posix/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/posix/elf/*.java \
+$(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/ppc64/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/proc/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/proc/amd64/*.java \
+$(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/proc/ppc64/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/proc/sparc/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/proc/x86/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/remote/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/remote/amd64/*.java \
+$(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/remote/ppc64/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/remote/sparc/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/remote/x86/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/debugger/sparc/*.java \
@@ -90,12 +94,14 @@
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/runtime/linux_amd64/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/runtime/linux_x86/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/runtime/linux_sparc/*.java \
+$(AGENT_SRC_DIR)/sun/jvm/hotspot/runtime/linux_ppc64/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/runtime/posix/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/runtime/solaris_amd64/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/runtime/solaris_sparc/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/runtime/solaris_x86/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/runtime/sparc/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/runtime/x86/*.java \
+$(AGENT_SRC_DIR)/sun/jvm/hotspot/runtime/ppc64/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/tools/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/tools/jcore/*.java \
 $(AGENT_SRC_DIR)/sun/jvm/hotspot/tools/soql/*.java \

--- a/hotspot/src/share/vm/runtime/vmStructs.cpp	Fri Dec 19 22:52:02 2014 -0800
+++ b/hotspot/src/share/vm/runtime/vmStructs.cpp	Wed Dec 17 18:20:10 2014 +0100
@@ -2559,6 +2559,8 @@
   /**********************/                                                \
   /* frame              */                                                \
   /**********************/                                                \
+  NOT_ZERO(PPC64_ONLY(declare_constant(frame::abi_minframe_size)))        \
+  NOT_ZERO(PPC64_ONLY(declare_constant(frame::entry_frame_locals_size)))  \
                                                                           \
   NOT_ZERO(X86_ONLY(declare_constant(frame::entry_frame_call_wrapper_offset)))      \
   declare_constant(frame::pc_return_offset)                               \