Version 3.20.15

tools/grokdump.py

 #!/usr/bin/env python
 #
 # Copyright 2012 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
@@ skipping 22 matching lines @@
 import ctypes
 import datetime
 import disasm
 import mmap
 import optparse
 import os
 import re
 import struct
 import sys
 import types
-import v8heapconst
 
 USAGE="""usage: %prog [OPTIONS] [DUMP-FILE]
 
 Minidump analyzer.
 
 Shows the processor state at the point of exception including the
 stack of the active thread and the referenced objects in the V8
 heap. Code objects are disassembled and the addresses linked from the
 stack (e.g. pushed return addresses) are marked with "=>".
 
@@ skipping 103 matching lines @@
         maybe_address = reader.ReadUIntPtr(slot)
         heap_object = heap.FindObject(maybe_address)
         print "%s: %s" % (reader.FormatIntPtr(slot),
                           reader.FormatIntPtr(maybe_address))
         if heap_object:
           heap_object.Print(Printer())
           print
 
   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.
 
 MINIDUMP_HEADER = Descriptor([
   ("signature", ctypes.c_uint32),
   ("version", ctypes.c_uint32),
   ("stream_count", ctypes.c_uint32),
   ("stream_directories_rva", ctypes.c_uint32),
   ("checksum", ctypes.c_uint32),
   ("time_date_stampt", ctypes.c_uint32),
@@ skipping 571 matching lines @@
       return self.exception_context.eip
 
   def ExceptionSP(self):
     if self.arch == MD_CPU_ARCHITECTURE_AMD64:
       return self.exception_context.rsp
     elif self.arch == MD_CPU_ARCHITECTURE_ARM:
       return self.exception_context.sp
     elif self.arch == MD_CPU_ARCHITECTURE_X86:
       return self.exception_context.esp
 
-  def ExceptionFP(self):
-    if self.arch == MD_CPU_ARCHITECTURE_AMD64:
-      return self.exception_context.rbp
-    elif self.arch == MD_CPU_ARCHITECTURE_ARM:
-      return None
-    elif self.arch == MD_CPU_ARCHITECTURE_X86:
-      return self.exception_context.ebp
-
   def FormatIntPtr(self, value):
     if self.arch == MD_CPU_ARCHITECTURE_AMD64:
       return "%016x" % value
     elif self.arch == MD_CPU_ARCHITECTURE_ARM:
       return "%08x" % value
     elif self.arch == MD_CPU_ARCHITECTURE_X86:
       return "%08x" % value
 
   def PointerSize(self):
     if self.arch == MD_CPU_ARCHITECTURE_AMD64:
@@ skipping 60 matching lines @@
     if (0 < i) and self.symbols[i - 1].Covers(addr):
       symbol = self.symbols[i - 1]
     elif (i < len(self.symbols)) and self.symbols[i].Covers(addr):
       symbol = self.symbols[i]
     else:
       return None
     diff = addr - symbol.start
     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."""
 
   def __init__(self):
     self.indent = 0
 
   def Indent(self):
     self.indent += 2
 
   def Dedent(self):
@@ skipping 1091 matching lines @@
   if options.command:
     InspectionShell(reader, heap).onecmd(options.command)
 
   if options.shell:
     try:
       InspectionShell(reader, heap).cmdloop("type help to get help")
     except KeyboardInterrupt:
       print "Kthxbye."
   elif not options.command:
     if reader.exception is not None:
-      frame_pointer = reader.ExceptionFP()
       print "Annotated stack (from exception.esp to bottom):"
       for slot in xrange(stack_top, stack_bottom, reader.PointerSize()):
         maybe_address = reader.ReadUIntPtr(slot)
         heap_object = heap.FindObject(maybe_address)
         maybe_symbol = reader.FindSymbol(maybe_address)
-        if slot == frame_pointer:
-          maybe_symbol = "<---- frame pointer"
-          frame_pointer = maybe_address
         print "%s: %s %s" % (reader.FormatIntPtr(slot),
                              reader.FormatIntPtr(maybe_address),
                              maybe_symbol or "")
         if heap_object:
           heap_object.Print(Printer())
           print
 
   reader.Dispose()
 
 
@@ skipping 13 matching lines @@
   options, args = parser.parse_args()
   if os.path.exists(options.objdump):
     disasm.OBJDUMP_BIN = options.objdump
     OBJDUMP_BIN = options.objdump
   else:
     print "Cannot find %s, falling back to default objdump" % options.objdump
   if len(args) != 1:
     parser.print_help()
     sys.exit(1)
   AnalyzeMinidump(options, args[0])