--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/os/bsd/dtrace/jhelper.d	Thu Oct 13 09:35:42 2011 -0700
@@ -0,0 +1,447 @@
+/*
+ * Copyright (c) 2003, 2011, 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.
+ *  
+ */
+
+/* This file is auto-generated */
+#include "JvmOffsetsIndex.h"
+
+#define DEBUG
+
+#ifdef DEBUG
+#define MARK_LINE this->line = __LINE__
+#else
+#define MARK_LINE 
+#endif
+
+#ifdef _LP64
+#define STACK_BIAS 0x7ff
+#define pointer uint64_t
+#else
+#define STACK_BIAS 0
+#define pointer uint32_t
+#endif
+
+extern pointer __JvmOffsets;
+
+extern pointer __1cJCodeCacheF_heap_;
+extern pointer __1cIUniverseP_methodKlassObj_;
+extern pointer __1cIUniverseO_collectedHeap_;
+extern pointer __1cIUniverseL_narrow_oop_;
+#ifdef _LP64
+extern pointer UseCompressedOops;
+#endif
+
+extern pointer __1cHnmethodG__vtbl_;
+extern pointer __1cKBufferBlobG__vtbl_;
+
+#define copyin_ptr(ADDR)    *(pointer*)  copyin((pointer) (ADDR), sizeof(pointer))
+#define copyin_uchar(ADDR)  *(uchar_t*)  copyin((pointer) (ADDR), sizeof(uchar_t))
+#define copyin_uint16(ADDR) *(uint16_t*) copyin((pointer) (ADDR), sizeof(uint16_t))
+#define copyin_uint32(ADDR) *(uint32_t*) copyin((pointer) (ADDR), sizeof(uint32_t))
+#define copyin_int32(ADDR)  *(int32_t*)  copyin((pointer) (ADDR), sizeof(int32_t))
+#define copyin_uint8(ADDR)  *(uint8_t*)  copyin((pointer) (ADDR), sizeof(uint8_t))
+
+#define SAME(x) x
+#define copyin_offset(JVM_CONST)  JVM_CONST = \
+	copyin_int32(JvmOffsetsPtr + SAME(IDX_)JVM_CONST * sizeof(int32_t))
+
+int init_done;
+
+dtrace:helper:ustack:
+{
+  MARK_LINE;
+  this->done = 0;
+  /*
+   * TBD:
+   * Here we initialize init_done, otherwise jhelper does not work.
+   * Therefore, copyin_offset() statements work multiple times now.
+   * There is a hope we could avoid it in the future, and so,
+   * this initialization can be removed.
+   */
+  init_done  = 0;
+  this->error = (char *) NULL;
+  this->result = (char *) NULL;
+  this->methodOop = 0;
+  this->codecache = 0;
+  this->klass = (pointer) NULL;
+  this->vtbl  = (pointer) NULL;
+  this->suffix = '\0';
+}
+
+dtrace:helper:ustack:
+{
+  MARK_LINE;
+  /* Initialization of JvmOffsets constants */
+  JvmOffsetsPtr = (pointer) &``__JvmOffsets;
+}
+
+dtrace:helper:ustack:
+/!init_done && !this->done/
+{
+  MARK_LINE;
+  init_done = 1;
+
+  copyin_offset(COMPILER);
+  copyin_offset(OFFSET_CollectedHeap_reserved);
+  copyin_offset(OFFSET_MemRegion_start);
+  copyin_offset(OFFSET_MemRegion_word_size);
+  copyin_offset(SIZE_HeapWord);
+
+  copyin_offset(OFFSET_interpreter_frame_method);
+  copyin_offset(OFFSET_Klass_name);
+  copyin_offset(OFFSET_constantPoolOopDesc_pool_holder);
+
+  copyin_offset(OFFSET_HeapBlockHeader_used);
+  copyin_offset(OFFSET_oopDesc_metadata);
+
+  copyin_offset(OFFSET_Symbol_length);
+  copyin_offset(OFFSET_Symbol_body);
+
+  copyin_offset(OFFSET_methodOopDesc_constMethod);
+  copyin_offset(OFFSET_methodOopDesc_constants);
+  copyin_offset(OFFSET_constMethodOopDesc_name_index);
+  copyin_offset(OFFSET_constMethodOopDesc_signature_index);
+
+  copyin_offset(OFFSET_CodeHeap_memory);
+  copyin_offset(OFFSET_CodeHeap_segmap);
+  copyin_offset(OFFSET_CodeHeap_log2_segment_size);
+
+  copyin_offset(OFFSET_VirtualSpace_low);
+  copyin_offset(OFFSET_VirtualSpace_high);
+
+  copyin_offset(OFFSET_CodeBlob_name);
+
+  copyin_offset(OFFSET_nmethod_method);
+  copyin_offset(SIZE_HeapBlockHeader);
+  copyin_offset(SIZE_oopDesc);
+  copyin_offset(SIZE_constantPoolOopDesc);
+
+  copyin_offset(OFFSET_NarrowOopStruct_base);
+  copyin_offset(OFFSET_NarrowOopStruct_shift);
+
+  /*
+   * The PC to translate is in arg0.
+   */
+  this->pc = arg0;
+
+  /*
+   * The methodOopPtr is in %l2 on SPARC.  This can be found at
+   * offset 8 from the frame pointer on 32-bit processes.
+   */
+#if   defined(__sparc)
+  this->methodOopPtr = copyin_ptr(arg1 + 2 * sizeof(pointer) + STACK_BIAS);
+#elif defined(__i386) || defined(__amd64)
+  this->methodOopPtr = copyin_ptr(arg1 + OFFSET_interpreter_frame_method);
+#else
+#error "Don't know architecture"
+#endif
+
+  this->Universe_methodKlassOop = copyin_ptr(&``__1cIUniverseP_methodKlassObj_);
+  this->CodeCache_heap_address = copyin_ptr(&``__1cJCodeCacheF_heap_);
+
+  /* Reading volatile values */
+#ifdef _LP64
+  this->Use_Compressed_Oops  = copyin_uint8(&``UseCompressedOops);
+#else
+  this->Use_Compressed_Oops  = 0;
+#endif
+
+  this->Universe_narrow_oop_base  = copyin_ptr(&``__1cIUniverseL_narrow_oop_ +
+                                               OFFSET_NarrowOopStruct_base);
+  this->Universe_narrow_oop_shift = copyin_int32(&``__1cIUniverseL_narrow_oop_ +
+                                                 OFFSET_NarrowOopStruct_shift);
+
+  this->CodeCache_low = copyin_ptr(this->CodeCache_heap_address + 
+      OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_low);
+
+  this->CodeCache_high = copyin_ptr(this->CodeCache_heap_address +
+      OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_high);
+
+  this->CodeCache_segmap_low = copyin_ptr(this->CodeCache_heap_address +
+      OFFSET_CodeHeap_segmap + OFFSET_VirtualSpace_low);
+
+  this->CodeCache_segmap_high = copyin_ptr(this->CodeCache_heap_address +
+      OFFSET_CodeHeap_segmap + OFFSET_VirtualSpace_high);
+
+  this->CodeHeap_log2_segment_size = copyin_uint32(
+      this->CodeCache_heap_address + OFFSET_CodeHeap_log2_segment_size);
+
+  /*
+   * Get Java heap bounds
+   */
+  this->Universe_collectedHeap = copyin_ptr(&``__1cIUniverseO_collectedHeap_);
+  this->heap_start = copyin_ptr(this->Universe_collectedHeap +
+      OFFSET_CollectedHeap_reserved +
+      OFFSET_MemRegion_start);
+  this->heap_size = SIZE_HeapWord *
+    copyin_ptr(this->Universe_collectedHeap +
+        OFFSET_CollectedHeap_reserved +
+        OFFSET_MemRegion_word_size
+        );
+  this->heap_end = this->heap_start + this->heap_size;
+}
+
+dtrace:helper:ustack:
+/!this->done &&
+this->CodeCache_low <= this->pc && this->pc < this->CodeCache_high/
+{
+  MARK_LINE;
+  this->codecache = 1;
+
+  /*
+   * Find start.
+   */
+  this->segment = (this->pc - this->CodeCache_low) >>
+    this->CodeHeap_log2_segment_size;
+  this->block = this->CodeCache_segmap_low;
+  this->tag = copyin_uchar(this->block + this->segment);
+  "second";
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && this->tag > 0/
+{
+  MARK_LINE;
+  this->tag = copyin_uchar(this->block + this->segment);
+  this->segment = this->segment - this->tag;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && this->tag > 0/
+{
+  MARK_LINE;
+  this->tag = copyin_uchar(this->block + this->segment);
+  this->segment = this->segment - this->tag;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && this->tag > 0/
+{
+  MARK_LINE;
+  this->tag = copyin_uchar(this->block + this->segment);
+  this->segment = this->segment - this->tag;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && this->tag > 0/
+{
+  MARK_LINE;
+  this->tag = copyin_uchar(this->block + this->segment);
+  this->segment = this->segment - this->tag;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && this->tag > 0/
+{
+  MARK_LINE;
+  this->tag = copyin_uchar(this->block + this->segment);
+  this->segment = this->segment - this->tag;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && this->tag > 0/
+{
+  MARK_LINE;
+  this->error = "<couldn't find start>";
+  this->done = 1;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache/
+{
+  MARK_LINE;
+  this->block = this->CodeCache_low +
+    (this->segment << this->CodeHeap_log2_segment_size);
+  this->used = copyin_uint32(this->block + OFFSET_HeapBlockHeader_used);
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && !this->used/
+{
+  MARK_LINE;
+  this->error = "<block not in use>";
+  this->done = 1;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache/
+{
+  MARK_LINE;
+  this->start = this->block + SIZE_HeapBlockHeader;
+  this->vtbl = copyin_ptr(this->start);
+
+  this->nmethod_vtbl            = (pointer) &``__1cHnmethodG__vtbl_;
+  this->BufferBlob_vtbl         = (pointer) &``__1cKBufferBlobG__vtbl_;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->vtbl == this->nmethod_vtbl/
+{
+  MARK_LINE;
+  this->methodOopPtr = copyin_ptr(this->start + OFFSET_nmethod_method);
+  this->suffix = '*';
+  this->methodOop = 1;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->vtbl == this->BufferBlob_vtbl/
+{
+  MARK_LINE;
+  this->name = copyin_ptr(this->start + OFFSET_CodeBlob_name);
+}
+
+dtrace:helper:ustack:
+/!this->done && this->vtbl == this->BufferBlob_vtbl &&
+this->Use_Compressed_Oops == 0 &&
+this->methodOopPtr > this->heap_start && this->methodOopPtr < this->heap_end/
+{
+  MARK_LINE;
+  this->klass = copyin_ptr(this->methodOopPtr + OFFSET_oopDesc_metadata);
+  this->methodOop = this->klass == this->Universe_methodKlassOop;
+  this->done = !this->methodOop;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->vtbl == this->BufferBlob_vtbl &&
+this->Use_Compressed_Oops != 0 &&
+this->methodOopPtr > this->heap_start && this->methodOopPtr < this->heap_end/
+{
+  MARK_LINE;
+  /*
+   * Read compressed pointer and  decode heap oop, same as oop.inline.hpp
+   */
+  this->cklass = copyin_uint32(this->methodOopPtr + OFFSET_oopDesc_metadata);
+  this->klass = (uint64_t)((uintptr_t)this->Universe_narrow_oop_base +
+                ((uintptr_t)this->cklass << this->Universe_narrow_oop_shift));
+  this->methodOop = this->klass == this->Universe_methodKlassOop;
+  this->done = !this->methodOop;
+}
+
+dtrace:helper:ustack:
+/!this->done && !this->methodOop/
+{
+  MARK_LINE;
+  this->name = copyin_ptr(this->start + OFFSET_CodeBlob_name);
+  this->result = this->name != 0 ? copyinstr(this->name) : "<CodeBlob>";
+  this->done = 1;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->methodOop/
+{
+  MARK_LINE;
+  this->constMethod = copyin_ptr(this->methodOopPtr +
+      OFFSET_methodOopDesc_constMethod);
+
+  this->nameIndex = copyin_uint16(this->constMethod +
+      OFFSET_constMethodOopDesc_name_index);
+
+  this->signatureIndex = copyin_uint16(this->constMethod +
+      OFFSET_constMethodOopDesc_signature_index);
+
+  this->constantPool = copyin_ptr(this->methodOopPtr +
+      OFFSET_methodOopDesc_constants);
+
+  this->nameSymbol = copyin_ptr(this->constantPool +
+      this->nameIndex * sizeof (pointer) + SIZE_constantPoolOopDesc);
+
+  this->nameSymbolLength = copyin_uint16(this->nameSymbol +
+      OFFSET_Symbol_length);
+
+  this->signatureSymbol = copyin_ptr(this->constantPool +
+      this->signatureIndex * sizeof (pointer) + SIZE_constantPoolOopDesc);
+
+  this->signatureSymbolLength = copyin_uint16(this->signatureSymbol +
+      OFFSET_Symbol_length);
+
+  this->klassPtr = copyin_ptr(this->constantPool +
+      OFFSET_constantPoolOopDesc_pool_holder);
+
+  this->klassSymbol = copyin_ptr(this->klassPtr +
+      OFFSET_Klass_name + SIZE_oopDesc);
+
+  this->klassSymbolLength = copyin_uint16(this->klassSymbol +
+      OFFSET_Symbol_length);
+
+  /*
+   * Enough for three strings, plus the '.', plus the trailing '\0'.
+   */
+  this->result = (char *) alloca(this->klassSymbolLength +
+      this->nameSymbolLength +
+      this->signatureSymbolLength + 2 + 1);
+
+  copyinto(this->klassSymbol + OFFSET_Symbol_body,
+      this->klassSymbolLength, this->result);
+
+  /*
+   * Add the '.' between the class and the name.
+   */
+  this->result[this->klassSymbolLength] = '.';
+
+  copyinto(this->nameSymbol + OFFSET_Symbol_body,
+      this->nameSymbolLength,
+      this->result + this->klassSymbolLength + 1);
+
+  copyinto(this->signatureSymbol + OFFSET_Symbol_body,
+      this->signatureSymbolLength,
+      this->result + this->klassSymbolLength +
+      this->nameSymbolLength + 1);
+
+  /*
+   * Now we need to add a trailing '\0' and possibly a tag character.
+   */
+  this->result[this->klassSymbolLength + 1 + 
+      this->nameSymbolLength +
+      this->signatureSymbolLength] = this->suffix;
+  this->result[this->klassSymbolLength + 2 + 
+      this->nameSymbolLength +
+      this->signatureSymbolLength] = '\0';
+
+  this->done = 1;
+}
+
+dtrace:helper:ustack:
+/this->done && this->error == (char *) NULL/
+{
+  this->result;   
+}
+
+dtrace:helper:ustack:
+/this->done && this->error != (char *) NULL/
+{
+  this->error;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache/
+{
+  this->done = 1;
+  "error";
+}
+
+
+dtrace:helper:ustack:
+/!this->done/
+{
+  NULL;
+}