From: mstarzinger@chromium.org <mstarzinger@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Fri, 2 Aug 2013 09:02:02 +0000 (+0000)
Subject: Generate grokdump constants with 'make grokdump' now.
X-Git-Tag: upstream/4.7.83~13079
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=12c8d363312fdf62d6c9bfb9e6ccc05dd548dabc;p=platform%2Fupstream%2Fv8.git

Generate grokdump constants with 'make grokdump' now.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/21771002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16022 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---

diff --git a/Makefile b/Makefile
index 499f6cb..288c257 100644
--- a/Makefile
+++ b/Makefile
@@ -192,6 +192,7 @@ endif
 
 # ----------------- available targets: --------------------
 # - "dependencies": pulls in external dependencies (currently: GYP)
+# - "grokdump": rebuilds heap constants lists used by grokdump
 # - any arch listed in ARCHES (see below)
 # - any mode listed in MODES
 # - every combination <arch>.<mode>, e.g. "ia32.release"
@@ -392,7 +393,7 @@ endif
 # Replaces the old with the new environment file if they're different, which
 # will trigger GYP to regenerate Makefiles.
 $(ENVFILE): $(ENVFILE).new
-	@if test -r $(ENVFILE) && cmp $(ENVFILE).new $(ENVFILE) >/dev/null; \
+	@if test -r $(ENVFILE) && cmp $(ENVFILE).new $(ENVFILE) > /dev/null; \
 	    then rm $(ENVFILE).new; \
 	    else mv $(ENVFILE).new $(ENVFILE); fi
 
@@ -401,6 +402,12 @@ $(ENVFILE).new:
 	@mkdir -p $(OUTDIR); echo "GYPFLAGS=$(GYPFLAGS)" > $(ENVFILE).new; \
 	    echo "CXX=$(CXX)" >> $(ENVFILE).new
 
+# Heap constants for grokdump.
+DUMP_FILE = tools/v8heapconst.py
+grokdump: ia32.release
+	@cat $(DUMP_FILE).tmpl > $(DUMP_FILE)
+	@$(OUTDIR)/ia32.release/d8 --dump-heap-constants >> $(DUMP_FILE)
+
 # Dependencies.
 # Remember to keep these in sync with the DEPS file.
 dependencies:
diff --git a/src/d8.cc b/src/d8.cc
index cde8404..d6ecdc9 100644
--- a/src/d8.cc
+++ b/src/d8.cc
@@ -1406,6 +1406,14 @@ bool Shell::SetOptions(int argc, char* argv[]) {
 #else
       options.num_parallel_files++;
 #endif  // V8_SHARED
+    } else if (strcmp(argv[i], "--dump-heap-constants") == 0) {
+#ifdef V8_SHARED
+      printf("D8 with shared library does not support constant dumping\n");
+      return false;
+#else
+      options.dump_heap_constants = true;
+      argv[i] = NULL;
+#endif
     }
 #ifdef V8_SHARED
     else if (strcmp(argv[i], "--dump-counters") == 0) {
@@ -1560,6 +1568,63 @@ static void SetStandaloneFlagsViaCommandLine() {
 #endif
 
 
+#ifndef V8_SHARED
+static void DumpHeapConstants(i::Isolate* isolate) {
+  i::Heap* heap = isolate->heap();
+
+  // Dump the INSTANCE_TYPES table to the console.
+  printf("# List of known V8 instance types.\n");
+#define DUMP_TYPE(T) printf("  %d: \"%s\",\n", i::T, #T);
+  printf("INSTANCE_TYPES = {\n");
+  INSTANCE_TYPE_LIST(DUMP_TYPE)
+  printf("}\n");
+#undef DUMP_TYPE
+
+  // Dump the KNOWN_MAP table to the console.
+  printf("\n# List of known V8 maps.\n");
+#define ROOT_LIST_CASE(type, name, camel_name) \
+  if (o == heap->name()) n = #camel_name;
+#define STRUCT_LIST_CASE(upper_name, camel_name, name) \
+  if (o == heap->name##_map()) n = #camel_name "Map";
+  i::HeapObjectIterator it(heap->map_space());
+  printf("KNOWN_MAPS = {\n");
+  for (i::Object* o = it.Next(); o != NULL; o = it.Next()) {
+    i::Map* m = i::Map::cast(o);
+    const char* n = NULL;
+    intptr_t p = reinterpret_cast<intptr_t>(m) & 0xfffff;
+    int t = m->instance_type();
+    ROOT_LIST(ROOT_LIST_CASE)
+    STRUCT_LIST(STRUCT_LIST_CASE)
+    if (n == NULL) continue;
+    printf("  0x%05" V8_PTR_PREFIX "x: (%d, \"%s\"),\n", p, t, n);
+  }
+  printf("}\n");
+#undef STRUCT_LIST_CASE
+#undef ROOT_LIST_CASE
+
+  // Dump the KNOWN_OBJECTS table to the console.
+  printf("\n# List of known V8 objects.\n");
+#define ROOT_LIST_CASE(type, name, camel_name) \
+  if (o == heap->name()) n = #camel_name;
+  i::OldSpaces spit(heap);
+  printf("KNOWN_OBJECTS = {\n");
+  for (i::PagedSpace* s = spit.next(); s != NULL; s = spit.next()) {
+    i::HeapObjectIterator it(s);
+    const char* sname = AllocationSpaceName(s->identity());
+    for (i::Object* o = it.Next(); o != NULL; o = it.Next()) {
+      const char* n = NULL;
+      intptr_t p = reinterpret_cast<intptr_t>(o) & 0xfffff;
+      ROOT_LIST(ROOT_LIST_CASE)
+      if (n == NULL) continue;
+      printf("  (\"%s\", 0x%05" V8_PTR_PREFIX "x): \"%s\",\n", sname, p, n);
+    }
+  }
+  printf("}\n");
+#undef ROOT_LIST_CASE
+}
+#endif  // V8_SHARED
+
+
 class ShellArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
  public:
   virtual void* Allocate(size_t length) {
@@ -1597,6 +1662,13 @@ int Shell::Main(int argc, char* argv[]) {
     PerIsolateData data(isolate);
     InitializeDebugger(isolate);
 
+#ifndef V8_SHARED
+    if (options.dump_heap_constants) {
+      DumpHeapConstants(reinterpret_cast<i::Isolate*>(isolate));
+      return 0;
+    }
+#endif
+
     if (options.stress_opt || options.stress_deopt) {
       Testing::SetStressRunType(options.stress_opt
                                 ? Testing::kStressTypeOpt
diff --git a/src/d8.h b/src/d8.h
index 4f04342..3b06985 100644
--- a/src/d8.h
+++ b/src/d8.h
@@ -231,6 +231,7 @@ class ShellOptions {
      stress_deopt(false),
      interactive_shell(false),
      test_shell(false),
+     dump_heap_constants(false),
      num_isolates(1),
      isolate_sources(NULL) { }
 
@@ -254,6 +255,7 @@ class ShellOptions {
   bool stress_deopt;
   bool interactive_shell;
   bool test_shell;
+  bool dump_heap_constants;
   int num_isolates;
   SourceGroup* isolate_sources;
 };
diff --git a/tools/grokdump.py b/tools/grokdump.py
index 9719376..fadbe76 100755
--- a/tools/grokdump.py
+++ b/tools/grokdump.py
@@ -40,6 +40,7 @@ import re
 import struct
 import sys
 import types
+import v8heapconst
 
 USAGE="""usage: %prog [OPTIONS] [DUMP-FILE]
 
@@ -163,6 +164,11 @@ def FullDump(reader, heap):
 
   reader.ForEachMemoryRegion(dump_region)
 
+# Heap constants generated by 'make grokdump' in v8heapconst module.
+INSTANCE_TYPES = v8heapconst.INSTANCE_TYPES
+KNOWN_MAPS = v8heapconst.KNOWN_MAPS
+KNOWN_OBJECTS = v8heapconst.KNOWN_OBJECTS
+
 # Set of structures and constants that describe the layout of minidump
 # files. Based on MSDN and Google Breakpad.
 
@@ -834,262 +840,6 @@ class MinidumpReader(object):
     return "%s+0x%x" % (symbol.name, diff)
 
 
-
-# List of V8 instance types. Obtained by adding the code below to any .cc file.
-#
-# #define DUMP_TYPE(T) printf("  %d: \"%s\",\n", T, #T);
-# struct P {
-#   P() {
-#     printf("INSTANCE_TYPES = {\n");
-#     INSTANCE_TYPE_LIST(DUMP_TYPE)
-#     printf("}\n");
-#   }
-# };
-# static P p;
-INSTANCE_TYPES = {
-  0: "STRING_TYPE",
-  4: "ASCII_STRING_TYPE",
-  1: "CONS_STRING_TYPE",
-  5: "CONS_ASCII_STRING_TYPE",
-  3: "SLICED_STRING_TYPE",
-  2: "EXTERNAL_STRING_TYPE",
-  6: "EXTERNAL_ASCII_STRING_TYPE",
-  10: "EXTERNAL_STRING_WITH_ASCII_DATA_TYPE",
-  18: "SHORT_EXTERNAL_STRING_TYPE",
-  22: "SHORT_EXTERNAL_ASCII_STRING_TYPE",
-  26: "SHORT_EXTERNAL_STRING_WITH_ASCII_DATA_TYPE",
-  64: "INTERNALIZED_STRING_TYPE",
-  68: "ASCII_INTERNALIZED_STRING_TYPE",
-  65: "CONS_INTERNALIZED_STRING_TYPE",
-  69: "CONS_ASCII_INTERNALIZED_STRING_TYPE",
-  66: "EXTERNAL_INTERNALIZED_STRING_TYPE",
-  70: "EXTERNAL_ASCII_INTERNALIZED_STRING_TYPE",
-  74: "EXTERNAL_INTERNALIZED_STRING_WITH_ASCII_DATA_TYPE",
-  82: "SHORT_EXTERNAL_INTERNALIZED_STRING_TYPE",
-  86: "SHORT_EXTERNAL_ASCII_INTERNALIZED_STRING_TYPE",
-  90: "SHORT_EXTERNAL_INTERNALIZED_STRING_WITH_ASCII_DATA_TYPE",
-  128: "SYMBOL_TYPE",
-  129: "MAP_TYPE",
-  130: "CODE_TYPE",
-  131: "ODDBALL_TYPE",
-  132: "JS_GLOBAL_PROPERTY_CELL_TYPE",
-  133: "HEAP_NUMBER_TYPE",
-  134: "FOREIGN_TYPE",
-  135: "BYTE_ARRAY_TYPE",
-  136: "FREE_SPACE_TYPE",
-  137: "EXTERNAL_BYTE_ARRAY_TYPE",
-  138: "EXTERNAL_UNSIGNED_BYTE_ARRAY_TYPE",
-  139: "EXTERNAL_SHORT_ARRAY_TYPE",
-  140: "EXTERNAL_UNSIGNED_SHORT_ARRAY_TYPE",
-  141: "EXTERNAL_INT_ARRAY_TYPE",
-  142: "EXTERNAL_UNSIGNED_INT_ARRAY_TYPE",
-  143: "EXTERNAL_FLOAT_ARRAY_TYPE",
-  145: "EXTERNAL_PIXEL_ARRAY_TYPE",
-  147: "FILLER_TYPE",
-  148: "DECLARED_ACCESSOR_DESCRIPTOR_TYPE",
-  149: "DECLARED_ACCESSOR_INFO_TYPE",
-  150: "EXECUTABLE_ACCESSOR_INFO_TYPE",
-  151: "ACCESSOR_PAIR_TYPE",
-  152: "ACCESS_CHECK_INFO_TYPE",
-  153: "INTERCEPTOR_INFO_TYPE",
-  154: "CALL_HANDLER_INFO_TYPE",
-  155: "FUNCTION_TEMPLATE_INFO_TYPE",
-  156: "OBJECT_TEMPLATE_INFO_TYPE",
-  157: "SIGNATURE_INFO_TYPE",
-  158: "TYPE_SWITCH_INFO_TYPE",
-  159: "ALLOCATION_SITE_INFO_TYPE",
-  160: "SCRIPT_TYPE",
-  161: "CODE_CACHE_TYPE",
-  162: "POLYMORPHIC_CODE_CACHE_TYPE",
-  163: "TYPE_FEEDBACK_INFO_TYPE",
-  164: "ALIASED_ARGUMENTS_ENTRY_TYPE",
-  167: "FIXED_ARRAY_TYPE",
-  146: "FIXED_DOUBLE_ARRAY_TYPE",
-  168: "SHARED_FUNCTION_INFO_TYPE",
-  169: "JS_MESSAGE_OBJECT_TYPE",
-  172: "JS_VALUE_TYPE",
-  173: "JS_DATE_TYPE",
-  174: "JS_OBJECT_TYPE",
-  175: "JS_CONTEXT_EXTENSION_OBJECT_TYPE",
-  176: "JS_MODULE_TYPE",
-  177: "JS_GLOBAL_OBJECT_TYPE",
-  178: "JS_BUILTINS_OBJECT_TYPE",
-  179: "JS_GLOBAL_PROXY_TYPE",
-  180: "JS_ARRAY_TYPE",
-  171: "JS_PROXY_TYPE",
-  183: "JS_WEAK_MAP_TYPE",
-  184: "JS_WEAK_SET_TYPE",
-  185: "JS_REGEXP_TYPE",
-  186: "JS_FUNCTION_TYPE",
-  170: "JS_FUNCTION_PROXY_TYPE",
-  165: "DEBUG_INFO_TYPE",
-  166: "BREAK_POINT_INFO_TYPE",
-}
-
-
-# List of known V8 maps. Used to determine the instance type and name
-# for maps that are part of the root-set and hence on the first page of
-# the map-space. Obtained by adding the code below to an IA32 release
-# build with enabled snapshots to the end of the Isolate::Init method.
-#
-# #define ROOT_LIST_CASE(type, name, camel_name) \
-#   if (o == heap_.name()) n = #camel_name;
-# #define STRUCT_LIST_CASE(upper_name, camel_name, name) \
-#   if (o == heap_.name##_map()) n = #camel_name "Map";
-# HeapObjectIterator it(heap_.map_space());
-# printf("KNOWN_MAPS = {\n");
-# for (Object* o = it.Next(); o != NULL; o = it.Next()) {
-#   Map* m = Map::cast(o);
-#   const char* n = "";
-#   intptr_t p = reinterpret_cast<intptr_t>(m) & 0xfffff;
-#   int t = m->instance_type();
-#   ROOT_LIST(ROOT_LIST_CASE)
-#   STRUCT_LIST(STRUCT_LIST_CASE)
-#   printf("  0x%05x: (%d, \"%s\"),\n", p, t, n);
-# }
-# printf("}\n");
-KNOWN_MAPS = {
-  0x08081: (135, "ByteArrayMap"),
-  0x080a9: (129, "MetaMap"),
-  0x080d1: (131, "OddballMap"),
-  0x080f9: (68, "AsciiInternalizedStringMap"),
-  0x08121: (167, "FixedArrayMap"),
-  0x08149: (133, "HeapNumberMap"),
-  0x08171: (136, "FreeSpaceMap"),
-  0x08199: (147, "OnePointerFillerMap"),
-  0x081c1: (147, "TwoPointerFillerMap"),
-  0x081e9: (132, "GlobalPropertyCellMap"),
-  0x08211: (168, "SharedFunctionInfoMap"),
-  0x08239: (167, "NativeContextMap"),
-  0x08261: (130, "CodeMap"),
-  0x08289: (167, "ScopeInfoMap"),
-  0x082b1: (167, "FixedCOWArrayMap"),
-  0x082d9: (146, "FixedDoubleArrayMap"),
-  0x08301: (167, "HashTableMap"),
-  0x08329: (128, "SymbolMap"),
-  0x08351: (0, "StringMap"),
-  0x08379: (4, "AsciiStringMap"),
-  0x083a1: (1, "ConsStringMap"),
-  0x083c9: (5, "ConsAsciiStringMap"),
-  0x083f1: (3, "SlicedStringMap"),
-  0x08419: (7, "SlicedAsciiStringMap"),
-  0x08441: (2, "ExternalStringMap"),
-  0x08469: (10, "ExternalStringWithAsciiDataMap"),
-  0x08491: (6, "ExternalAsciiStringMap"),
-  0x084b9: (18, "ShortExternalStringMap"),
-  0x084e1: (26, "ShortExternalStringWithAsciiDataMap"),
-  0x08509: (64, "InternalizedStringMap"),
-  0x08531: (65, "ConsInternalizedStringMap"),
-  0x08559: (69, "ConsAsciiInternalizedStringMap"),
-  0x08581: (66, "ExternalInternalizedStringMap"),
-  0x085a9: (74, "ExternalInternalizedStringWithAsciiDataMap"),
-  0x085d1: (70, "ExternalAsciiInternalizedStringMap"),
-  0x085f9: (82, "ShortExternalInternalizedStringMap"),
-  0x08621: (90, "ShortExternalInternalizedStringWithAsciiDataMap"),
-  0x08649: (86, "ShortExternalAsciiInternalizedStringMap"),
-  0x08671: (22, "ShortExternalAsciiStringMap"),
-  0x08699: (0, "UndetectableStringMap"),
-  0x086c1: (4, "UndetectableAsciiStringMap"),
-  0x086e9: (145, "ExternalPixelArrayMap"),
-  0x08711: (137, "ExternalByteArrayMap"),
-  0x08739: (138, "ExternalUnsignedByteArrayMap"),
-  0x08761: (139, "ExternalShortArrayMap"),
-  0x08789: (140, "ExternalUnsignedShortArrayMap"),
-  0x087b1: (141, "ExternalIntArrayMap"),
-  0x087d9: (142, "ExternalUnsignedIntArrayMap"),
-  0x08801: (143, "ExternalFloatArrayMap"),
-  0x08829: (144, "ExternalDoubleArrayMap"),
-  0x08851: (167, "NonStrictArgumentsElementsMap"),
-  0x08879: (167, "FunctionContextMap"),
-  0x088a1: (167, "CatchContextMap"),
-  0x088c9: (167, "WithContextMap"),
-  0x088f1: (167, "BlockContextMap"),
-  0x08919: (167, "ModuleContextMap"),
-  0x08941: (167, "GlobalContextMap"),
-  0x08969: (169, "JSMessageObjectMap"),
-  0x08991: (134, "ForeignMap"),
-  0x089b9: (174, "NeanderMap"),
-  0x089e1: (159, "AllocationSiteInfoMap"),
-  0x08a09: (162, "PolymorphicCodeCacheMap"),
-  0x08a31: (160, "ScriptMap"),
-  0x08a59: (174, ""),
-  0x08a81: (174, "ExternalMap"),
-  0x08aa9: (148, "DeclaredAccessorDescriptorMap"),
-  0x08ad1: (149, "DeclaredAccessorInfoMap"),
-  0x08af9: (150, "ExecutableAccessorInfoMap"),
-  0x08b21: (151, "AccessorPairMap"),
-  0x08b49: (152, "AccessCheckInfoMap"),
-  0x08b71: (153, "InterceptorInfoMap"),
-  0x08b99: (154, "CallHandlerInfoMap"),
-  0x08bc1: (155, "FunctionTemplateInfoMap"),
-  0x08be9: (156, "ObjectTemplateInfoMap"),
-  0x08c11: (157, "SignatureInfoMap"),
-  0x08c39: (158, "TypeSwitchInfoMap"),
-  0x08c61: (161, "CodeCacheMap"),
-  0x08c89: (163, "TypeFeedbackInfoMap"),
-  0x08cb1: (164, "AliasedArgumentsEntryMap"),
-  0x08cd9: (165, "DebugInfoMap"),
-  0x08d01: (166, "BreakPointInfoMap"),
-}
-
-
-# List of known V8 objects. Used to determine name for objects that are
-# part of the root-set and hence on the first page of various old-space
-# paged. Obtained by adding the code below to an IA32 release build with
-# enabled snapshots to the end of the Isolate::Init method.
-#
-# #define ROOT_LIST_CASE(type, name, camel_name) \
-#   if (o == heap_.name()) n = #camel_name;
-# OldSpaces spit(heap());
-# printf("KNOWN_OBJECTS = {\n");
-# for (PagedSpace* s = spit.next(); s != NULL; s = spit.next()) {
-#   HeapObjectIterator it(s);
-#   const char* sname = AllocationSpaceName(s->identity());
-#   for (Object* o = it.Next(); o != NULL; o = it.Next()) {
-#     const char* n = NULL;
-#     intptr_t p = reinterpret_cast<intptr_t>(o) & 0xfffff;
-#     ROOT_LIST(ROOT_LIST_CASE)
-#     if (n != NULL) {
-#       printf("  (\"%s\", 0x%05x): \"%s\",\n", sname, p, n);
-#     }
-#   }
-# }
-# printf("}\n");
-KNOWN_OBJECTS = {
-  ("OLD_POINTER_SPACE", 0x08081): "NullValue",
-  ("OLD_POINTER_SPACE", 0x08091): "UndefinedValue",
-  ("OLD_POINTER_SPACE", 0x080a1): "InstanceofCacheMap",
-  ("OLD_POINTER_SPACE", 0x080b1): "TrueValue",
-  ("OLD_POINTER_SPACE", 0x080c1): "FalseValue",
-  ("OLD_POINTER_SPACE", 0x080d1): "NoInterceptorResultSentinel",
-  ("OLD_POINTER_SPACE", 0x080e1): "ArgumentsMarker",
-  ("OLD_POINTER_SPACE", 0x080f1): "NumberStringCache",
-  ("OLD_POINTER_SPACE", 0x088f9): "SingleCharacterStringCache",
-  ("OLD_POINTER_SPACE", 0x08b01): "StringSplitCache",
-  ("OLD_POINTER_SPACE", 0x08f09): "RegExpMultipleCache",
-  ("OLD_POINTER_SPACE", 0x09311): "TerminationException",
-  ("OLD_POINTER_SPACE", 0x09321): "MessageListeners",
-  ("OLD_POINTER_SPACE", 0x0933d): "CodeStubs",
-  ("OLD_POINTER_SPACE", 0x09fa5): "NonMonomorphicCache",
-  ("OLD_POINTER_SPACE", 0x0a5b9): "PolymorphicCodeCache",
-  ("OLD_POINTER_SPACE", 0x0a5c1): "NativesSourceCache",
-  ("OLD_POINTER_SPACE", 0x0a601): "EmptyScript",
-  ("OLD_POINTER_SPACE", 0x0a63d): "IntrinsicFunctionNames",
-  ("OLD_POINTER_SPACE", 0x0d659): "ObservationState",
-  ("OLD_POINTER_SPACE", 0x27415): "SymbolTable",
-  ("OLD_DATA_SPACE", 0x08099): "EmptyDescriptorArray",
-  ("OLD_DATA_SPACE", 0x080a1): "EmptyFixedArray",
-  ("OLD_DATA_SPACE", 0x080a9): "NanValue",
-  ("OLD_DATA_SPACE", 0x08125): "EmptyByteArray",
-  ("OLD_DATA_SPACE", 0x0812d): "EmptyString",
-  ("OLD_DATA_SPACE", 0x08259): "InfinityValue",
-  ("OLD_DATA_SPACE", 0x08265): "MinusZeroValue",
-  ("OLD_DATA_SPACE", 0x08271): "PrototypeAccessors",
-  ("CODE_SPACE", 0x0aea1): "JsEntryCode",
-  ("CODE_SPACE", 0x0b5c1): "JsConstructEntryCode",
-}
-
-
 class Printer(object):
   """Printer with indentation support."""
 
diff --git a/tools/v8heapconst.py b/tools/v8heapconst.py
new file mode 100644
index 0000000..a8c0c7b
--- /dev/null
+++ b/tools/v8heapconst.py
@@ -0,0 +1,252 @@
+# Copyright 2013 the V8 project authors. All rights reserved.
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+#       copyright notice, this list of conditions and the following
+#       disclaimer in the documentation and/or other materials provided
+#       with the distribution.
+#     * Neither the name of Google Inc. nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# This file is automatically generated from the V8 source and should not
+# be modified manually, run 'make grokdump' instead to update this file.
+
+# List of known V8 instance types.
+INSTANCE_TYPES = {
+  64: "STRING_TYPE",
+  68: "ASCII_STRING_TYPE",
+  65: "CONS_STRING_TYPE",
+  69: "CONS_ASCII_STRING_TYPE",
+  67: "SLICED_STRING_TYPE",
+  66: "EXTERNAL_STRING_TYPE",
+  70: "EXTERNAL_ASCII_STRING_TYPE",
+  74: "EXTERNAL_STRING_WITH_ONE_BYTE_DATA_TYPE",
+  82: "SHORT_EXTERNAL_STRING_TYPE",
+  86: "SHORT_EXTERNAL_ASCII_STRING_TYPE",
+  90: "SHORT_EXTERNAL_STRING_WITH_ONE_BYTE_DATA_TYPE",
+  0: "INTERNALIZED_STRING_TYPE",
+  4: "ASCII_INTERNALIZED_STRING_TYPE",
+  1: "CONS_INTERNALIZED_STRING_TYPE",
+  5: "CONS_ASCII_INTERNALIZED_STRING_TYPE",
+  2: "EXTERNAL_INTERNALIZED_STRING_TYPE",
+  6: "EXTERNAL_ASCII_INTERNALIZED_STRING_TYPE",
+  10: "EXTERNAL_INTERNALIZED_STRING_WITH_ONE_BYTE_DATA_TYPE",
+  18: "SHORT_EXTERNAL_INTERNALIZED_STRING_TYPE",
+  22: "SHORT_EXTERNAL_ASCII_INTERNALIZED_STRING_TYPE",
+  26: "SHORT_EXTERNAL_INTERNALIZED_STRING_WITH_ONE_BYTE_DATA_TYPE",
+  128: "SYMBOL_TYPE",
+  129: "MAP_TYPE",
+  130: "CODE_TYPE",
+  131: "ODDBALL_TYPE",
+  132: "CELL_TYPE",
+  133: "PROPERTY_CELL_TYPE",
+  134: "HEAP_NUMBER_TYPE",
+  135: "FOREIGN_TYPE",
+  136: "BYTE_ARRAY_TYPE",
+  137: "FREE_SPACE_TYPE",
+  138: "EXTERNAL_BYTE_ARRAY_TYPE",
+  139: "EXTERNAL_UNSIGNED_BYTE_ARRAY_TYPE",
+  140: "EXTERNAL_SHORT_ARRAY_TYPE",
+  141: "EXTERNAL_UNSIGNED_SHORT_ARRAY_TYPE",
+  142: "EXTERNAL_INT_ARRAY_TYPE",
+  143: "EXTERNAL_UNSIGNED_INT_ARRAY_TYPE",
+  144: "EXTERNAL_FLOAT_ARRAY_TYPE",
+  145: "EXTERNAL_DOUBLE_ARRAY_TYPE",
+  146: "EXTERNAL_PIXEL_ARRAY_TYPE",
+  148: "FILLER_TYPE",
+  149: "DECLARED_ACCESSOR_DESCRIPTOR_TYPE",
+  150: "DECLARED_ACCESSOR_INFO_TYPE",
+  151: "EXECUTABLE_ACCESSOR_INFO_TYPE",
+  152: "ACCESSOR_PAIR_TYPE",
+  153: "ACCESS_CHECK_INFO_TYPE",
+  154: "INTERCEPTOR_INFO_TYPE",
+  155: "CALL_HANDLER_INFO_TYPE",
+  156: "FUNCTION_TEMPLATE_INFO_TYPE",
+  157: "OBJECT_TEMPLATE_INFO_TYPE",
+  158: "SIGNATURE_INFO_TYPE",
+  159: "TYPE_SWITCH_INFO_TYPE",
+  161: "ALLOCATION_MEMENTO_TYPE",
+  160: "ALLOCATION_SITE_TYPE",
+  162: "SCRIPT_TYPE",
+  163: "CODE_CACHE_TYPE",
+  164: "POLYMORPHIC_CODE_CACHE_TYPE",
+  165: "TYPE_FEEDBACK_INFO_TYPE",
+  166: "ALIASED_ARGUMENTS_ENTRY_TYPE",
+  167: "BOX_TYPE",
+  170: "FIXED_ARRAY_TYPE",
+  147: "FIXED_DOUBLE_ARRAY_TYPE",
+  171: "SHARED_FUNCTION_INFO_TYPE",
+  172: "JS_MESSAGE_OBJECT_TYPE",
+  175: "JS_VALUE_TYPE",
+  176: "JS_DATE_TYPE",
+  177: "JS_OBJECT_TYPE",
+  178: "JS_CONTEXT_EXTENSION_OBJECT_TYPE",
+  179: "JS_GENERATOR_OBJECT_TYPE",
+  180: "JS_MODULE_TYPE",
+  181: "JS_GLOBAL_OBJECT_TYPE",
+  182: "JS_BUILTINS_OBJECT_TYPE",
+  183: "JS_GLOBAL_PROXY_TYPE",
+  184: "JS_ARRAY_TYPE",
+  185: "JS_ARRAY_BUFFER_TYPE",
+  186: "JS_TYPED_ARRAY_TYPE",
+  187: "JS_DATA_VIEW_TYPE",
+  174: "JS_PROXY_TYPE",
+  190: "JS_WEAK_MAP_TYPE",
+  191: "JS_WEAK_SET_TYPE",
+  192: "JS_REGEXP_TYPE",
+  193: "JS_FUNCTION_TYPE",
+  173: "JS_FUNCTION_PROXY_TYPE",
+  168: "DEBUG_INFO_TYPE",
+  169: "BREAK_POINT_INFO_TYPE",
+}
+
+# List of known V8 maps.
+KNOWN_MAPS = {
+  0x08081: (136, "ByteArrayMap"),
+  0x080a9: (129, "MetaMap"),
+  0x080d1: (131, "OddballMap"),
+  0x080f9: (4, "AsciiInternalizedStringMap"),
+  0x08121: (170, "FixedArrayMap"),
+  0x08149: (134, "HeapNumberMap"),
+  0x08171: (137, "FreeSpaceMap"),
+  0x08199: (148, "OnePointerFillerMap"),
+  0x081c1: (148, "TwoPointerFillerMap"),
+  0x081e9: (132, "CellMap"),
+  0x08211: (133, "GlobalPropertyCellMap"),
+  0x08239: (171, "SharedFunctionInfoMap"),
+  0x08261: (170, "NativeContextMap"),
+  0x08289: (130, "CodeMap"),
+  0x082b1: (170, "ScopeInfoMap"),
+  0x082d9: (170, "FixedCOWArrayMap"),
+  0x08301: (147, "FixedDoubleArrayMap"),
+  0x08329: (170, "HashTableMap"),
+  0x08351: (128, "SymbolMap"),
+  0x08379: (64, "StringMap"),
+  0x083a1: (68, "AsciiStringMap"),
+  0x083c9: (65, "ConsStringMap"),
+  0x083f1: (69, "ConsAsciiStringMap"),
+  0x08419: (67, "SlicedStringMap"),
+  0x08441: (71, "SlicedAsciiStringMap"),
+  0x08469: (66, "ExternalStringMap"),
+  0x08491: (74, "ExternalStringWithOneByteDataMap"),
+  0x084b9: (70, "ExternalAsciiStringMap"),
+  0x084e1: (82, "ShortExternalStringMap"),
+  0x08509: (90, "ShortExternalStringWithOneByteDataMap"),
+  0x08531: (0, "InternalizedStringMap"),
+  0x08559: (1, "ConsInternalizedStringMap"),
+  0x08581: (5, "ConsAsciiInternalizedStringMap"),
+  0x085a9: (2, "ExternalInternalizedStringMap"),
+  0x085d1: (10, "ExternalInternalizedStringWithOneByteDataMap"),
+  0x085f9: (6, "ExternalAsciiInternalizedStringMap"),
+  0x08621: (18, "ShortExternalInternalizedStringMap"),
+  0x08649: (26, "ShortExternalInternalizedStringWithOneByteDataMap"),
+  0x08671: (22, "ShortExternalAsciiInternalizedStringMap"),
+  0x08699: (86, "ShortExternalAsciiStringMap"),
+  0x086c1: (64, "UndetectableStringMap"),
+  0x086e9: (68, "UndetectableAsciiStringMap"),
+  0x08711: (138, "ExternalByteArrayMap"),
+  0x08739: (139, "ExternalUnsignedByteArrayMap"),
+  0x08761: (140, "ExternalShortArrayMap"),
+  0x08789: (141, "ExternalUnsignedShortArrayMap"),
+  0x087b1: (142, "ExternalIntArrayMap"),
+  0x087d9: (143, "ExternalUnsignedIntArrayMap"),
+  0x08801: (144, "ExternalFloatArrayMap"),
+  0x08829: (145, "ExternalDoubleArrayMap"),
+  0x08851: (146, "ExternalPixelArrayMap"),
+  0x08879: (170, "NonStrictArgumentsElementsMap"),
+  0x088a1: (170, "FunctionContextMap"),
+  0x088c9: (170, "CatchContextMap"),
+  0x088f1: (170, "WithContextMap"),
+  0x08919: (170, "BlockContextMap"),
+  0x08941: (170, "ModuleContextMap"),
+  0x08969: (170, "GlobalContextMap"),
+  0x08991: (172, "JSMessageObjectMap"),
+  0x089b9: (135, "ForeignMap"),
+  0x089e1: (177, "NeanderMap"),
+  0x08a09: (161, "AllocationMementoMap"),
+  0x08a31: (160, "AllocationSiteMap"),
+  0x08a59: (164, "PolymorphicCodeCacheMap"),
+  0x08a81: (162, "ScriptMap"),
+  0x08ad1: (177, "ExternalMap"),
+  0x08af9: (167, "BoxMap"),
+  0x08b21: (149, "DeclaredAccessorDescriptorMap"),
+  0x08b49: (150, "DeclaredAccessorInfoMap"),
+  0x08b71: (151, "ExecutableAccessorInfoMap"),
+  0x08b99: (152, "AccessorPairMap"),
+  0x08bc1: (153, "AccessCheckInfoMap"),
+  0x08be9: (154, "InterceptorInfoMap"),
+  0x08c11: (155, "CallHandlerInfoMap"),
+  0x08c39: (156, "FunctionTemplateInfoMap"),
+  0x08c61: (157, "ObjectTemplateInfoMap"),
+  0x08c89: (158, "SignatureInfoMap"),
+  0x08cb1: (159, "TypeSwitchInfoMap"),
+  0x08cd9: (163, "CodeCacheMap"),
+  0x08d01: (165, "TypeFeedbackInfoMap"),
+  0x08d29: (166, "AliasedArgumentsEntryMap"),
+  0x08d51: (168, "DebugInfoMap"),
+  0x08d79: (169, "BreakPointInfoMap"),
+}
+
+# List of known V8 objects.
+KNOWN_OBJECTS = {
+  ("OLD_POINTER_SPACE", 0x08081): "NullValue",
+  ("OLD_POINTER_SPACE", 0x08091): "UndefinedValue",
+  ("OLD_POINTER_SPACE", 0x080a1): "I18nTemplateTwo",
+  ("OLD_POINTER_SPACE", 0x080b1): "TrueValue",
+  ("OLD_POINTER_SPACE", 0x080c1): "FalseValue",
+  ("OLD_POINTER_SPACE", 0x080d1): "UninitializedValue",
+  ("OLD_POINTER_SPACE", 0x080e1): "NoInterceptorResultSentinel",
+  ("OLD_POINTER_SPACE", 0x080f1): "ArgumentsMarker",
+  ("OLD_POINTER_SPACE", 0x08101): "NumberStringCache",
+  ("OLD_POINTER_SPACE", 0x08909): "SingleCharacterStringCache",
+  ("OLD_POINTER_SPACE", 0x08d11): "StringSplitCache",
+  ("OLD_POINTER_SPACE", 0x09119): "RegExpMultipleCache",
+  ("OLD_POINTER_SPACE", 0x09521): "TerminationException",
+  ("OLD_POINTER_SPACE", 0x09531): "MessageListeners",
+  ("OLD_POINTER_SPACE", 0x0954d): "CodeStubs",
+  ("OLD_POINTER_SPACE", 0x0a9d9): "NonMonomorphicCache",
+  ("OLD_POINTER_SPACE", 0x0afed): "PolymorphicCodeCache",
+  ("OLD_POINTER_SPACE", 0x0aff5): "NativesSourceCache",
+  ("OLD_POINTER_SPACE", 0x0b035): "EmptyScript",
+  ("OLD_POINTER_SPACE", 0x0b06d): "IntrinsicFunctionNames",
+  ("OLD_POINTER_SPACE", 0x0e089): "ObservationState",
+  ("OLD_POINTER_SPACE", 0x0e095): "FrozenSymbol",
+  ("OLD_POINTER_SPACE", 0x0e0a1): "ElementsTransitionSymbol",
+  ("OLD_POINTER_SPACE", 0x0e0ad): "EmptySlowElementDictionary",
+  ("OLD_POINTER_SPACE", 0x0e249): "ObservedSymbol",
+  ("OLD_POINTER_SPACE", 0x27631): "StringTable",
+  ("OLD_DATA_SPACE", 0x08099): "EmptyDescriptorArray",
+  ("OLD_DATA_SPACE", 0x080a1): "EmptyFixedArray",
+  ("OLD_DATA_SPACE", 0x080a9): "NanValue",
+  ("OLD_DATA_SPACE", 0x08141): "EmptyByteArray",
+  ("OLD_DATA_SPACE", 0x08269): "EmptyExternalByteArray",
+  ("OLD_DATA_SPACE", 0x08275): "EmptyExternalUnsignedByteArray",
+  ("OLD_DATA_SPACE", 0x08281): "EmptyExternalShortArray",
+  ("OLD_DATA_SPACE", 0x0828d): "EmptyExternalUnsignedShortArray",
+  ("OLD_DATA_SPACE", 0x08299): "EmptyExternalIntArray",
+  ("OLD_DATA_SPACE", 0x082a5): "EmptyExternalUnsignedIntArray",
+  ("OLD_DATA_SPACE", 0x082b1): "EmptyExternalFloatArray",
+  ("OLD_DATA_SPACE", 0x082bd): "EmptyExternalDoubleArray",
+  ("OLD_DATA_SPACE", 0x082c9): "EmptyExternalPixelArray",
+  ("OLD_DATA_SPACE", 0x082d5): "InfinityValue",
+  ("OLD_DATA_SPACE", 0x082e1): "MinusZeroValue",
+  ("CODE_SPACE", 0x0eb41): "JsConstructEntryCode",
+  ("CODE_SPACE", 0x177a1): "JsEntryCode",
+}
diff --git a/tools/v8heapconst.py.tmpl b/tools/v8heapconst.py.tmpl
new file mode 100644
index 0000000..a773f47
--- /dev/null
+++ b/tools/v8heapconst.py.tmpl
@@ -0,0 +1,30 @@
+# Copyright 2013 the V8 project authors. All rights reserved.
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+#       copyright notice, this list of conditions and the following
+#       disclaimer in the documentation and/or other materials provided
+#       with the distribution.
+#     * Neither the name of Google Inc. nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# This file is automatically generated from the V8 source and should not
+# be modified manually, run 'make grokdump' instead to update this file.
+