fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1 | #!/usr/bin/env python |
| 2 | # |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 3 | # Copyright 2012 the V8 project authors. All rights reserved. |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 4 | # Redistribution and use in source and binary forms, with or without |
| 5 | # modification, are permitted provided that the following conditions are |
| 6 | # met: |
| 7 | # |
| 8 | # * Redistributions of source code must retain the above copyright |
| 9 | # notice, this list of conditions and the following disclaimer. |
| 10 | # * Redistributions in binary form must reproduce the above |
| 11 | # copyright notice, this list of conditions and the following |
| 12 | # disclaimer in the documentation and/or other materials provided |
| 13 | # with the distribution. |
| 14 | # * Neither the name of Google Inc. nor the names of its |
| 15 | # contributors may be used to endorse or promote products derived |
| 16 | # from this software without specific prior written permission. |
| 17 | # |
| 18 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 | # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 | # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 21 | # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 22 | # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 23 | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 24 | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 | # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 30 | import bisect |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 31 | import cmd |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 32 | import codecs |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 33 | import ctypes |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame^] | 34 | import datetime |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 35 | import disasm |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 36 | import mmap |
| 37 | import optparse |
| 38 | import os |
danno@chromium.org | 2ab0c3b | 2012-10-05 08:50:56 +0000 | [diff] [blame] | 39 | import re |
| 40 | import struct |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 41 | import sys |
| 42 | import types |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 43 | |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 44 | USAGE="""usage: %prog [OPTIONS] [DUMP-FILE] |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 45 | |
| 46 | Minidump analyzer. |
| 47 | |
| 48 | Shows the processor state at the point of exception including the |
| 49 | stack of the active thread and the referenced objects in the V8 |
| 50 | heap. Code objects are disassembled and the addresses linked from the |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 51 | stack (e.g. pushed return addresses) are marked with "=>". |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 52 | |
| 53 | Examples: |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 54 | $ %prog 12345678-1234-1234-1234-123456789abcd-full.dmp""" |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 55 | |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 56 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 57 | DEBUG=False |
| 58 | |
| 59 | |
| 60 | def DebugPrint(s): |
| 61 | if not DEBUG: return |
| 62 | print s |
| 63 | |
| 64 | |
| 65 | class Descriptor(object): |
| 66 | """Descriptor of a structure in a memory.""" |
| 67 | |
| 68 | def __init__(self, fields): |
| 69 | self.fields = fields |
| 70 | self.is_flexible = False |
| 71 | for _, type_or_func in fields: |
| 72 | if isinstance(type_or_func, types.FunctionType): |
| 73 | self.is_flexible = True |
| 74 | break |
| 75 | if not self.is_flexible: |
| 76 | self.ctype = Descriptor._GetCtype(fields) |
| 77 | self.size = ctypes.sizeof(self.ctype) |
| 78 | |
| 79 | def Read(self, memory, offset): |
| 80 | if self.is_flexible: |
| 81 | fields_copy = self.fields[:] |
| 82 | last = 0 |
| 83 | for name, type_or_func in fields_copy: |
| 84 | if isinstance(type_or_func, types.FunctionType): |
| 85 | partial_ctype = Descriptor._GetCtype(fields_copy[:last]) |
| 86 | partial_object = partial_ctype.from_buffer(memory, offset) |
| 87 | type = type_or_func(partial_object) |
| 88 | if type is not None: |
| 89 | fields_copy[last] = (name, type) |
| 90 | last += 1 |
| 91 | else: |
| 92 | last += 1 |
| 93 | complete_ctype = Descriptor._GetCtype(fields_copy[:last]) |
| 94 | else: |
| 95 | complete_ctype = self.ctype |
| 96 | return complete_ctype.from_buffer(memory, offset) |
| 97 | |
| 98 | @staticmethod |
| 99 | def _GetCtype(fields): |
| 100 | class Raw(ctypes.Structure): |
| 101 | _fields_ = fields |
| 102 | _pack_ = 1 |
| 103 | |
| 104 | def __str__(self): |
| 105 | return "{" + ", ".join("%s: %s" % (field, self.__getattribute__(field)) |
| 106 | for field, _ in Raw._fields_) + "}" |
| 107 | return Raw |
| 108 | |
| 109 | |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 110 | def FullDump(reader, heap): |
yangguo@chromium.org | cb9affa | 2012-05-15 12:16:38 +0000 | [diff] [blame] | 111 | """Dump all available memory regions.""" |
| 112 | def dump_region(reader, start, size, location): |
mstarzinger@chromium.org | 15613d0 | 2012-05-23 12:04:37 +0000 | [diff] [blame] | 113 | print |
| 114 | while start & 3 != 0: |
| 115 | start += 1 |
| 116 | size -= 1 |
| 117 | location += 1 |
| 118 | is_executable = reader.IsProbableExecutableRegion(location, size) |
| 119 | is_ascii = reader.IsProbableASCIIRegion(location, size) |
| 120 | |
| 121 | if is_executable is not False: |
| 122 | lines = reader.GetDisasmLines(start, size) |
| 123 | for line in lines: |
| 124 | print FormatDisasmLine(start, heap, line) |
| 125 | print |
| 126 | |
| 127 | if is_ascii is not False: |
| 128 | # Output in the same format as the Unix hd command |
| 129 | addr = start |
| 130 | for slot in xrange(location, location + size, 16): |
| 131 | hex_line = "" |
| 132 | asc_line = "" |
| 133 | for i in xrange(0, 16): |
| 134 | if slot + i < location + size: |
| 135 | byte = ctypes.c_uint8.from_buffer(reader.minidump, slot + i).value |
| 136 | if byte >= 0x20 and byte < 0x7f: |
| 137 | asc_line += chr(byte) |
| 138 | else: |
| 139 | asc_line += "." |
| 140 | hex_line += " %02x" % (byte) |
| 141 | else: |
| 142 | hex_line += " " |
| 143 | if i == 7: |
| 144 | hex_line += " " |
| 145 | print "%s %s |%s|" % (reader.FormatIntPtr(addr), |
| 146 | hex_line, |
| 147 | asc_line) |
| 148 | addr += 16 |
| 149 | |
| 150 | if is_executable is not True and is_ascii is not True: |
| 151 | print "%s - %s" % (reader.FormatIntPtr(start), |
| 152 | reader.FormatIntPtr(start + size)) |
| 153 | for slot in xrange(start, |
| 154 | start + size, |
| 155 | reader.PointerSize()): |
| 156 | maybe_address = reader.ReadUIntPtr(slot) |
| 157 | heap_object = heap.FindObject(maybe_address) |
| 158 | print "%s: %s" % (reader.FormatIntPtr(slot), |
| 159 | reader.FormatIntPtr(maybe_address)) |
| 160 | if heap_object: |
| 161 | heap_object.Print(Printer()) |
| 162 | print |
yangguo@chromium.org | cb9affa | 2012-05-15 12:16:38 +0000 | [diff] [blame] | 163 | |
| 164 | reader.ForEachMemoryRegion(dump_region) |
| 165 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 166 | # Set of structures and constants that describe the layout of minidump |
| 167 | # files. Based on MSDN and Google Breakpad. |
| 168 | |
| 169 | MINIDUMP_HEADER = Descriptor([ |
| 170 | ("signature", ctypes.c_uint32), |
| 171 | ("version", ctypes.c_uint32), |
| 172 | ("stream_count", ctypes.c_uint32), |
| 173 | ("stream_directories_rva", ctypes.c_uint32), |
| 174 | ("checksum", ctypes.c_uint32), |
| 175 | ("time_date_stampt", ctypes.c_uint32), |
| 176 | ("flags", ctypes.c_uint64) |
| 177 | ]) |
| 178 | |
| 179 | MINIDUMP_LOCATION_DESCRIPTOR = Descriptor([ |
| 180 | ("data_size", ctypes.c_uint32), |
| 181 | ("rva", ctypes.c_uint32) |
| 182 | ]) |
| 183 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 184 | MINIDUMP_STRING = Descriptor([ |
| 185 | ("length", ctypes.c_uint32), |
| 186 | ("buffer", lambda t: ctypes.c_uint8 * (t.length + 2)) |
| 187 | ]) |
| 188 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 189 | MINIDUMP_DIRECTORY = Descriptor([ |
| 190 | ("stream_type", ctypes.c_uint32), |
| 191 | ("location", MINIDUMP_LOCATION_DESCRIPTOR.ctype) |
| 192 | ]) |
| 193 | |
| 194 | MD_EXCEPTION_MAXIMUM_PARAMETERS = 15 |
| 195 | |
| 196 | MINIDUMP_EXCEPTION = Descriptor([ |
| 197 | ("code", ctypes.c_uint32), |
| 198 | ("flags", ctypes.c_uint32), |
| 199 | ("record", ctypes.c_uint64), |
| 200 | ("address", ctypes.c_uint64), |
| 201 | ("parameter_count", ctypes.c_uint32), |
| 202 | ("unused_alignment", ctypes.c_uint32), |
| 203 | ("information", ctypes.c_uint64 * MD_EXCEPTION_MAXIMUM_PARAMETERS) |
| 204 | ]) |
| 205 | |
| 206 | MINIDUMP_EXCEPTION_STREAM = Descriptor([ |
| 207 | ("thread_id", ctypes.c_uint32), |
| 208 | ("unused_alignment", ctypes.c_uint32), |
| 209 | ("exception", MINIDUMP_EXCEPTION.ctype), |
| 210 | ("thread_context", MINIDUMP_LOCATION_DESCRIPTOR.ctype) |
| 211 | ]) |
| 212 | |
| 213 | # Stream types. |
| 214 | MD_UNUSED_STREAM = 0 |
| 215 | MD_RESERVED_STREAM_0 = 1 |
| 216 | MD_RESERVED_STREAM_1 = 2 |
| 217 | MD_THREAD_LIST_STREAM = 3 |
| 218 | MD_MODULE_LIST_STREAM = 4 |
| 219 | MD_MEMORY_LIST_STREAM = 5 |
| 220 | MD_EXCEPTION_STREAM = 6 |
| 221 | MD_SYSTEM_INFO_STREAM = 7 |
| 222 | MD_THREAD_EX_LIST_STREAM = 8 |
| 223 | MD_MEMORY_64_LIST_STREAM = 9 |
| 224 | MD_COMMENT_STREAM_A = 10 |
| 225 | MD_COMMENT_STREAM_W = 11 |
| 226 | MD_HANDLE_DATA_STREAM = 12 |
| 227 | MD_FUNCTION_TABLE_STREAM = 13 |
| 228 | MD_UNLOADED_MODULE_LIST_STREAM = 14 |
| 229 | MD_MISC_INFO_STREAM = 15 |
| 230 | MD_MEMORY_INFO_LIST_STREAM = 16 |
| 231 | MD_THREAD_INFO_LIST_STREAM = 17 |
| 232 | MD_HANDLE_OPERATION_LIST_STREAM = 18 |
| 233 | |
| 234 | MD_FLOATINGSAVEAREA_X86_REGISTERAREA_SIZE = 80 |
| 235 | |
| 236 | MINIDUMP_FLOATING_SAVE_AREA_X86 = Descriptor([ |
| 237 | ("control_word", ctypes.c_uint32), |
| 238 | ("status_word", ctypes.c_uint32), |
| 239 | ("tag_word", ctypes.c_uint32), |
| 240 | ("error_offset", ctypes.c_uint32), |
| 241 | ("error_selector", ctypes.c_uint32), |
| 242 | ("data_offset", ctypes.c_uint32), |
| 243 | ("data_selector", ctypes.c_uint32), |
| 244 | ("register_area", ctypes.c_uint8 * MD_FLOATINGSAVEAREA_X86_REGISTERAREA_SIZE), |
| 245 | ("cr0_npx_state", ctypes.c_uint32) |
| 246 | ]) |
| 247 | |
| 248 | MD_CONTEXT_X86_EXTENDED_REGISTERS_SIZE = 512 |
| 249 | |
| 250 | # Context flags. |
| 251 | MD_CONTEXT_X86 = 0x00010000 |
| 252 | MD_CONTEXT_X86_CONTROL = (MD_CONTEXT_X86 | 0x00000001) |
| 253 | MD_CONTEXT_X86_INTEGER = (MD_CONTEXT_X86 | 0x00000002) |
| 254 | MD_CONTEXT_X86_SEGMENTS = (MD_CONTEXT_X86 | 0x00000004) |
| 255 | MD_CONTEXT_X86_FLOATING_POINT = (MD_CONTEXT_X86 | 0x00000008) |
| 256 | MD_CONTEXT_X86_DEBUG_REGISTERS = (MD_CONTEXT_X86 | 0x00000010) |
| 257 | MD_CONTEXT_X86_EXTENDED_REGISTERS = (MD_CONTEXT_X86 | 0x00000020) |
| 258 | |
| 259 | def EnableOnFlag(type, flag): |
| 260 | return lambda o: [None, type][int((o.context_flags & flag) != 0)] |
| 261 | |
| 262 | MINIDUMP_CONTEXT_X86 = Descriptor([ |
| 263 | ("context_flags", ctypes.c_uint32), |
| 264 | # MD_CONTEXT_X86_DEBUG_REGISTERS. |
| 265 | ("dr0", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_DEBUG_REGISTERS)), |
| 266 | ("dr1", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_DEBUG_REGISTERS)), |
| 267 | ("dr2", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_DEBUG_REGISTERS)), |
| 268 | ("dr3", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_DEBUG_REGISTERS)), |
| 269 | ("dr6", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_DEBUG_REGISTERS)), |
| 270 | ("dr7", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_DEBUG_REGISTERS)), |
| 271 | # MD_CONTEXT_X86_FLOATING_POINT. |
| 272 | ("float_save", EnableOnFlag(MINIDUMP_FLOATING_SAVE_AREA_X86.ctype, |
| 273 | MD_CONTEXT_X86_FLOATING_POINT)), |
| 274 | # MD_CONTEXT_X86_SEGMENTS. |
| 275 | ("gs", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_SEGMENTS)), |
| 276 | ("fs", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_SEGMENTS)), |
| 277 | ("es", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_SEGMENTS)), |
| 278 | ("ds", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_SEGMENTS)), |
| 279 | # MD_CONTEXT_X86_INTEGER. |
| 280 | ("edi", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_INTEGER)), |
| 281 | ("esi", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_INTEGER)), |
| 282 | ("ebx", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_INTEGER)), |
| 283 | ("edx", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_INTEGER)), |
| 284 | ("ecx", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_INTEGER)), |
| 285 | ("eax", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_INTEGER)), |
| 286 | # MD_CONTEXT_X86_CONTROL. |
| 287 | ("ebp", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_CONTROL)), |
| 288 | ("eip", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_CONTROL)), |
| 289 | ("cs", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_CONTROL)), |
| 290 | ("eflags", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_CONTROL)), |
| 291 | ("esp", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_CONTROL)), |
| 292 | ("ss", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_CONTROL)), |
| 293 | # MD_CONTEXT_X86_EXTENDED_REGISTERS. |
| 294 | ("extended_registers", |
| 295 | EnableOnFlag(ctypes.c_uint8 * MD_CONTEXT_X86_EXTENDED_REGISTERS_SIZE, |
| 296 | MD_CONTEXT_X86_EXTENDED_REGISTERS)) |
| 297 | ]) |
| 298 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 299 | MD_CONTEXT_ARM = 0x40000000 |
| 300 | MD_CONTEXT_ARM_INTEGER = (MD_CONTEXT_ARM | 0x00000002) |
| 301 | MD_CONTEXT_ARM_FLOATING_POINT = (MD_CONTEXT_ARM | 0x00000004) |
| 302 | MD_FLOATINGSAVEAREA_ARM_FPR_COUNT = 32 |
| 303 | MD_FLOATINGSAVEAREA_ARM_FPEXTRA_COUNT = 8 |
| 304 | |
| 305 | MINIDUMP_FLOATING_SAVE_AREA_ARM = Descriptor([ |
| 306 | ("fpscr", ctypes.c_uint64), |
| 307 | ("regs", ctypes.c_uint64 * MD_FLOATINGSAVEAREA_ARM_FPR_COUNT), |
| 308 | ("extra", ctypes.c_uint64 * MD_FLOATINGSAVEAREA_ARM_FPEXTRA_COUNT) |
| 309 | ]) |
| 310 | |
| 311 | MINIDUMP_CONTEXT_ARM = Descriptor([ |
| 312 | ("context_flags", ctypes.c_uint32), |
| 313 | # MD_CONTEXT_ARM_INTEGER. |
| 314 | ("r0", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 315 | ("r1", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 316 | ("r2", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 317 | ("r3", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 318 | ("r4", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 319 | ("r5", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 320 | ("r6", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 321 | ("r7", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 322 | ("r8", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 323 | ("r9", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 324 | ("r10", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 325 | ("r11", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 326 | ("r12", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 327 | ("sp", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 328 | ("lr", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 329 | ("pc", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_ARM_INTEGER)), |
| 330 | ("cpsr", ctypes.c_uint32), |
| 331 | ("float_save", EnableOnFlag(MINIDUMP_FLOATING_SAVE_AREA_ARM.ctype, |
| 332 | MD_CONTEXT_ARM_FLOATING_POINT)) |
| 333 | ]) |
| 334 | |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 335 | MD_CONTEXT_AMD64 = 0x00100000 |
| 336 | MD_CONTEXT_AMD64_CONTROL = (MD_CONTEXT_AMD64 | 0x00000001) |
| 337 | MD_CONTEXT_AMD64_INTEGER = (MD_CONTEXT_AMD64 | 0x00000002) |
| 338 | MD_CONTEXT_AMD64_SEGMENTS = (MD_CONTEXT_AMD64 | 0x00000004) |
| 339 | MD_CONTEXT_AMD64_FLOATING_POINT = (MD_CONTEXT_AMD64 | 0x00000008) |
| 340 | MD_CONTEXT_AMD64_DEBUG_REGISTERS = (MD_CONTEXT_AMD64 | 0x00000010) |
| 341 | |
| 342 | MINIDUMP_CONTEXT_AMD64 = Descriptor([ |
| 343 | ("p1_home", ctypes.c_uint64), |
| 344 | ("p2_home", ctypes.c_uint64), |
| 345 | ("p3_home", ctypes.c_uint64), |
| 346 | ("p4_home", ctypes.c_uint64), |
| 347 | ("p5_home", ctypes.c_uint64), |
| 348 | ("p6_home", ctypes.c_uint64), |
| 349 | ("context_flags", ctypes.c_uint32), |
| 350 | ("mx_csr", ctypes.c_uint32), |
| 351 | # MD_CONTEXT_AMD64_CONTROL. |
| 352 | ("cs", EnableOnFlag(ctypes.c_uint16, MD_CONTEXT_AMD64_CONTROL)), |
| 353 | # MD_CONTEXT_AMD64_SEGMENTS |
| 354 | ("ds", EnableOnFlag(ctypes.c_uint16, MD_CONTEXT_AMD64_SEGMENTS)), |
| 355 | ("es", EnableOnFlag(ctypes.c_uint16, MD_CONTEXT_AMD64_SEGMENTS)), |
| 356 | ("fs", EnableOnFlag(ctypes.c_uint16, MD_CONTEXT_AMD64_SEGMENTS)), |
| 357 | ("gs", EnableOnFlag(ctypes.c_uint16, MD_CONTEXT_AMD64_SEGMENTS)), |
| 358 | # MD_CONTEXT_AMD64_CONTROL. |
| 359 | ("ss", EnableOnFlag(ctypes.c_uint16, MD_CONTEXT_AMD64_CONTROL)), |
| 360 | ("eflags", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_AMD64_CONTROL)), |
| 361 | # MD_CONTEXT_AMD64_DEBUG_REGISTERS. |
| 362 | ("dr0", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 363 | ("dr1", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 364 | ("dr2", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 365 | ("dr3", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 366 | ("dr6", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 367 | ("dr7", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 368 | # MD_CONTEXT_AMD64_INTEGER. |
| 369 | ("rax", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 370 | ("rcx", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 371 | ("rdx", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 372 | ("rbx", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 373 | # MD_CONTEXT_AMD64_CONTROL. |
| 374 | ("rsp", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_CONTROL)), |
| 375 | # MD_CONTEXT_AMD64_INTEGER. |
| 376 | ("rbp", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 377 | ("rsi", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 378 | ("rdi", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 379 | ("r8", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 380 | ("r9", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 381 | ("r10", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 382 | ("r11", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 383 | ("r12", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 384 | ("r13", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 385 | ("r14", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 386 | ("r15", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 387 | # MD_CONTEXT_AMD64_CONTROL. |
| 388 | ("rip", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_CONTROL)), |
| 389 | # MD_CONTEXT_AMD64_FLOATING_POINT |
| 390 | ("sse_registers", EnableOnFlag(ctypes.c_uint8 * (16 * 26), |
| 391 | MD_CONTEXT_AMD64_FLOATING_POINT)), |
| 392 | ("vector_registers", EnableOnFlag(ctypes.c_uint8 * (16 * 26), |
| 393 | MD_CONTEXT_AMD64_FLOATING_POINT)), |
| 394 | ("vector_control", EnableOnFlag(ctypes.c_uint64, |
| 395 | MD_CONTEXT_AMD64_FLOATING_POINT)), |
| 396 | # MD_CONTEXT_AMD64_DEBUG_REGISTERS. |
| 397 | ("debug_control", EnableOnFlag(ctypes.c_uint64, |
| 398 | MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 399 | ("last_branch_to_rip", EnableOnFlag(ctypes.c_uint64, |
| 400 | MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 401 | ("last_branch_from_rip", EnableOnFlag(ctypes.c_uint64, |
| 402 | MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 403 | ("last_exception_to_rip", EnableOnFlag(ctypes.c_uint64, |
| 404 | MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 405 | ("last_exception_from_rip", EnableOnFlag(ctypes.c_uint64, |
| 406 | MD_CONTEXT_AMD64_DEBUG_REGISTERS)) |
| 407 | ]) |
| 408 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 409 | MINIDUMP_MEMORY_DESCRIPTOR = Descriptor([ |
| 410 | ("start", ctypes.c_uint64), |
| 411 | ("memory", MINIDUMP_LOCATION_DESCRIPTOR.ctype) |
| 412 | ]) |
| 413 | |
| 414 | MINIDUMP_MEMORY_DESCRIPTOR64 = Descriptor([ |
| 415 | ("start", ctypes.c_uint64), |
| 416 | ("size", ctypes.c_uint64) |
| 417 | ]) |
| 418 | |
| 419 | MINIDUMP_MEMORY_LIST = Descriptor([ |
| 420 | ("range_count", ctypes.c_uint32), |
| 421 | ("ranges", lambda m: MINIDUMP_MEMORY_DESCRIPTOR.ctype * m.range_count) |
| 422 | ]) |
| 423 | |
| 424 | MINIDUMP_MEMORY_LIST64 = Descriptor([ |
| 425 | ("range_count", ctypes.c_uint64), |
| 426 | ("base_rva", ctypes.c_uint64), |
| 427 | ("ranges", lambda m: MINIDUMP_MEMORY_DESCRIPTOR64.ctype * m.range_count) |
| 428 | ]) |
| 429 | |
| 430 | MINIDUMP_THREAD = Descriptor([ |
| 431 | ("id", ctypes.c_uint32), |
| 432 | ("suspend_count", ctypes.c_uint32), |
| 433 | ("priority_class", ctypes.c_uint32), |
| 434 | ("priority", ctypes.c_uint32), |
| 435 | ("ted", ctypes.c_uint64), |
| 436 | ("stack", MINIDUMP_MEMORY_DESCRIPTOR.ctype), |
| 437 | ("context", MINIDUMP_LOCATION_DESCRIPTOR.ctype) |
| 438 | ]) |
| 439 | |
| 440 | MINIDUMP_THREAD_LIST = Descriptor([ |
| 441 | ("thread_count", ctypes.c_uint32), |
| 442 | ("threads", lambda t: MINIDUMP_THREAD.ctype * t.thread_count) |
| 443 | ]) |
| 444 | |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame^] | 445 | MINIDUMP_VS_FIXEDFILEINFO = Descriptor([ |
| 446 | ("dwSignature", ctypes.c_uint32), |
| 447 | ("dwStrucVersion", ctypes.c_uint32), |
| 448 | ("dwFileVersionMS", ctypes.c_uint32), |
| 449 | ("dwFileVersionLS", ctypes.c_uint32), |
| 450 | ("dwProductVersionMS", ctypes.c_uint32), |
| 451 | ("dwProductVersionLS", ctypes.c_uint32), |
| 452 | ("dwFileFlagsMask", ctypes.c_uint32), |
| 453 | ("dwFileFlags", ctypes.c_uint32), |
| 454 | ("dwFileOS", ctypes.c_uint32), |
| 455 | ("dwFileType", ctypes.c_uint32), |
| 456 | ("dwFileSubtype", ctypes.c_uint32), |
| 457 | ("dwFileDateMS", ctypes.c_uint32), |
| 458 | ("dwFileDateLS", ctypes.c_uint32) |
| 459 | ]) |
| 460 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 461 | MINIDUMP_RAW_MODULE = Descriptor([ |
| 462 | ("base_of_image", ctypes.c_uint64), |
| 463 | ("size_of_image", ctypes.c_uint32), |
| 464 | ("checksum", ctypes.c_uint32), |
| 465 | ("time_date_stamp", ctypes.c_uint32), |
| 466 | ("module_name_rva", ctypes.c_uint32), |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame^] | 467 | ("version_info", MINIDUMP_VS_FIXEDFILEINFO.ctype), |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 468 | ("cv_record", MINIDUMP_LOCATION_DESCRIPTOR.ctype), |
| 469 | ("misc_record", MINIDUMP_LOCATION_DESCRIPTOR.ctype), |
| 470 | ("reserved0", ctypes.c_uint32 * 2), |
| 471 | ("reserved1", ctypes.c_uint32 * 2) |
| 472 | ]) |
| 473 | |
| 474 | MINIDUMP_MODULE_LIST = Descriptor([ |
| 475 | ("number_of_modules", ctypes.c_uint32), |
| 476 | ("modules", lambda t: MINIDUMP_RAW_MODULE.ctype * t.number_of_modules) |
| 477 | ]) |
| 478 | |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 479 | MINIDUMP_RAW_SYSTEM_INFO = Descriptor([ |
| 480 | ("processor_architecture", ctypes.c_uint16) |
| 481 | ]) |
| 482 | |
| 483 | MD_CPU_ARCHITECTURE_X86 = 0 |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 484 | MD_CPU_ARCHITECTURE_ARM = 5 |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 485 | MD_CPU_ARCHITECTURE_AMD64 = 9 |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 486 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 487 | class FuncSymbol: |
| 488 | def __init__(self, start, size, name): |
| 489 | self.start = start |
| 490 | self.end = self.start + size |
| 491 | self.name = name |
| 492 | |
| 493 | def __cmp__(self, other): |
| 494 | if isinstance(other, FuncSymbol): |
| 495 | return self.start - other.start |
| 496 | return self.start - other |
| 497 | |
| 498 | def Covers(self, addr): |
| 499 | return (self.start <= addr) and (addr < self.end) |
| 500 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 501 | class MinidumpReader(object): |
| 502 | """Minidump (.dmp) reader.""" |
| 503 | |
| 504 | _HEADER_MAGIC = 0x504d444d |
| 505 | |
| 506 | def __init__(self, options, minidump_name): |
| 507 | self.minidump_name = minidump_name |
| 508 | self.minidump_file = open(minidump_name, "r") |
| 509 | self.minidump = mmap.mmap(self.minidump_file.fileno(), 0, mmap.MAP_PRIVATE) |
| 510 | self.header = MINIDUMP_HEADER.Read(self.minidump, 0) |
| 511 | if self.header.signature != MinidumpReader._HEADER_MAGIC: |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 512 | print >>sys.stderr, "Warning: Unsupported minidump header magic!" |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 513 | DebugPrint(self.header) |
| 514 | directories = [] |
| 515 | offset = self.header.stream_directories_rva |
| 516 | for _ in xrange(self.header.stream_count): |
| 517 | directories.append(MINIDUMP_DIRECTORY.Read(self.minidump, offset)) |
| 518 | offset += MINIDUMP_DIRECTORY.size |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 519 | self.arch = None |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 520 | self.exception = None |
| 521 | self.exception_context = None |
| 522 | self.memory_list = None |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 523 | self.memory_list64 = None |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 524 | self.module_list = None |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 525 | self.thread_map = {} |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 526 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 527 | self.symdir = options.symdir |
| 528 | self.modules_with_symbols = [] |
| 529 | self.symbols = [] |
| 530 | |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 531 | # Find MDRawSystemInfo stream and determine arch. |
| 532 | for d in directories: |
| 533 | if d.stream_type == MD_SYSTEM_INFO_STREAM: |
| 534 | system_info = MINIDUMP_RAW_SYSTEM_INFO.Read( |
| 535 | self.minidump, d.location.rva) |
| 536 | self.arch = system_info.processor_architecture |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 537 | assert self.arch in [MD_CPU_ARCHITECTURE_AMD64, |
| 538 | MD_CPU_ARCHITECTURE_ARM, |
| 539 | MD_CPU_ARCHITECTURE_X86] |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 540 | assert not self.arch is None |
| 541 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 542 | for d in directories: |
| 543 | DebugPrint(d) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 544 | if d.stream_type == MD_EXCEPTION_STREAM: |
| 545 | self.exception = MINIDUMP_EXCEPTION_STREAM.Read( |
| 546 | self.minidump, d.location.rva) |
| 547 | DebugPrint(self.exception) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 548 | if self.arch == MD_CPU_ARCHITECTURE_X86: |
| 549 | self.exception_context = MINIDUMP_CONTEXT_X86.Read( |
| 550 | self.minidump, self.exception.thread_context.rva) |
| 551 | elif self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 552 | self.exception_context = MINIDUMP_CONTEXT_AMD64.Read( |
| 553 | self.minidump, self.exception.thread_context.rva) |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 554 | elif self.arch == MD_CPU_ARCHITECTURE_ARM: |
| 555 | self.exception_context = MINIDUMP_CONTEXT_ARM.Read( |
| 556 | self.minidump, self.exception.thread_context.rva) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 557 | DebugPrint(self.exception_context) |
| 558 | elif d.stream_type == MD_THREAD_LIST_STREAM: |
| 559 | thread_list = MINIDUMP_THREAD_LIST.Read(self.minidump, d.location.rva) |
| 560 | assert ctypes.sizeof(thread_list) == d.location.data_size |
| 561 | DebugPrint(thread_list) |
| 562 | for thread in thread_list.threads: |
| 563 | DebugPrint(thread) |
| 564 | self.thread_map[thread.id] = thread |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 565 | elif d.stream_type == MD_MODULE_LIST_STREAM: |
| 566 | assert self.module_list is None |
| 567 | self.module_list = MINIDUMP_MODULE_LIST.Read( |
| 568 | self.minidump, d.location.rva) |
| 569 | assert ctypes.sizeof(self.module_list) == d.location.data_size |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 570 | elif d.stream_type == MD_MEMORY_LIST_STREAM: |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 571 | print >>sys.stderr, "Warning: This is not a full minidump!" |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 572 | assert self.memory_list is None |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 573 | self.memory_list = MINIDUMP_MEMORY_LIST.Read( |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 574 | self.minidump, d.location.rva) |
| 575 | assert ctypes.sizeof(self.memory_list) == d.location.data_size |
| 576 | DebugPrint(self.memory_list) |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 577 | elif d.stream_type == MD_MEMORY_64_LIST_STREAM: |
| 578 | assert self.memory_list64 is None |
| 579 | self.memory_list64 = MINIDUMP_MEMORY_LIST64.Read( |
| 580 | self.minidump, d.location.rva) |
| 581 | assert ctypes.sizeof(self.memory_list64) == d.location.data_size |
| 582 | DebugPrint(self.memory_list64) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 583 | |
| 584 | def IsValidAddress(self, address): |
| 585 | return self.FindLocation(address) is not None |
| 586 | |
| 587 | def ReadU8(self, address): |
| 588 | location = self.FindLocation(address) |
| 589 | return ctypes.c_uint8.from_buffer(self.minidump, location).value |
| 590 | |
| 591 | def ReadU32(self, address): |
| 592 | location = self.FindLocation(address) |
| 593 | return ctypes.c_uint32.from_buffer(self.minidump, location).value |
| 594 | |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 595 | def ReadU64(self, address): |
| 596 | location = self.FindLocation(address) |
| 597 | return ctypes.c_uint64.from_buffer(self.minidump, location).value |
| 598 | |
| 599 | def ReadUIntPtr(self, address): |
| 600 | if self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 601 | return self.ReadU64(address) |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 602 | elif self.arch == MD_CPU_ARCHITECTURE_ARM: |
| 603 | return self.ReadU32(address) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 604 | elif self.arch == MD_CPU_ARCHITECTURE_X86: |
| 605 | return self.ReadU32(address) |
| 606 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 607 | def ReadBytes(self, address, size): |
| 608 | location = self.FindLocation(address) |
| 609 | return self.minidump[location:location + size] |
| 610 | |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 611 | def _ReadWord(self, location): |
| 612 | if self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 613 | return ctypes.c_uint64.from_buffer(self.minidump, location).value |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 614 | elif self.arch == MD_CPU_ARCHITECTURE_ARM: |
| 615 | return ctypes.c_uint32.from_buffer(self.minidump, location).value |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 616 | elif self.arch == MD_CPU_ARCHITECTURE_X86: |
| 617 | return ctypes.c_uint32.from_buffer(self.minidump, location).value |
| 618 | |
mstarzinger@chromium.org | 15613d0 | 2012-05-23 12:04:37 +0000 | [diff] [blame] | 619 | def IsProbableASCIIRegion(self, location, length): |
| 620 | ascii_bytes = 0 |
| 621 | non_ascii_bytes = 0 |
| 622 | for loc in xrange(location, location + length): |
| 623 | byte = ctypes.c_uint8.from_buffer(self.minidump, loc).value |
| 624 | if byte >= 0x7f: |
| 625 | non_ascii_bytes += 1 |
| 626 | if byte < 0x20 and byte != 0: |
| 627 | non_ascii_bytes += 1 |
| 628 | if byte < 0x7f and byte >= 0x20: |
| 629 | ascii_bytes += 1 |
| 630 | if byte == 0xa: # newline |
| 631 | ascii_bytes += 1 |
| 632 | if ascii_bytes * 10 <= length: |
| 633 | return False |
| 634 | if length > 0 and ascii_bytes > non_ascii_bytes * 7: |
| 635 | return True |
| 636 | if ascii_bytes > non_ascii_bytes * 3: |
| 637 | return None # Maybe |
| 638 | return False |
| 639 | |
| 640 | def IsProbableExecutableRegion(self, location, length): |
| 641 | opcode_bytes = 0 |
| 642 | sixty_four = self.arch == MD_CPU_ARCHITECTURE_AMD64 |
| 643 | for loc in xrange(location, location + length): |
| 644 | byte = ctypes.c_uint8.from_buffer(self.minidump, loc).value |
| 645 | if (byte == 0x8b or # mov |
| 646 | byte == 0x89 or # mov reg-reg |
| 647 | (byte & 0xf0) == 0x50 or # push/pop |
| 648 | (sixty_four and (byte & 0xf0) == 0x40) or # rex prefix |
| 649 | byte == 0xc3 or # return |
| 650 | byte == 0x74 or # jeq |
| 651 | byte == 0x84 or # jeq far |
| 652 | byte == 0x75 or # jne |
| 653 | byte == 0x85 or # jne far |
| 654 | byte == 0xe8 or # call |
| 655 | byte == 0xe9 or # jmp far |
| 656 | byte == 0xeb): # jmp near |
| 657 | opcode_bytes += 1 |
| 658 | opcode_percent = (opcode_bytes * 100) / length |
| 659 | threshold = 20 |
| 660 | if opcode_percent > threshold + 2: |
| 661 | return True |
| 662 | if opcode_percent > threshold - 2: |
| 663 | return None # Maybe |
| 664 | return False |
| 665 | |
| 666 | def FindRegion(self, addr): |
| 667 | answer = [-1, -1] |
| 668 | def is_in(reader, start, size, location): |
| 669 | if addr >= start and addr < start + size: |
| 670 | answer[0] = start |
| 671 | answer[1] = size |
| 672 | self.ForEachMemoryRegion(is_in) |
| 673 | if answer[0] == -1: |
| 674 | return None |
| 675 | return answer |
| 676 | |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 677 | def ForEachMemoryRegion(self, cb): |
| 678 | if self.memory_list64 is not None: |
| 679 | for r in self.memory_list64.ranges: |
| 680 | location = self.memory_list64.base_rva + offset |
| 681 | cb(self, r.start, r.size, location) |
| 682 | offset += r.size |
| 683 | |
| 684 | if self.memory_list is not None: |
| 685 | for r in self.memory_list.ranges: |
| 686 | cb(self, r.start, r.memory.data_size, r.memory.rva) |
| 687 | |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 688 | def FindWord(self, word, alignment=0): |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 689 | def search_inside_region(reader, start, size, location): |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 690 | location = (location + alignment) & ~alignment |
| 691 | for loc in xrange(location, location + size - self.PointerSize()): |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 692 | if reader._ReadWord(loc) == word: |
| 693 | slot = start + (loc - location) |
| 694 | print "%s: %s" % (reader.FormatIntPtr(slot), |
| 695 | reader.FormatIntPtr(word)) |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 696 | self.ForEachMemoryRegion(search_inside_region) |
| 697 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 698 | def FindLocation(self, address): |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 699 | offset = 0 |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 700 | if self.memory_list64 is not None: |
| 701 | for r in self.memory_list64.ranges: |
| 702 | if r.start <= address < r.start + r.size: |
| 703 | return self.memory_list64.base_rva + offset + address - r.start |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 704 | offset += r.size |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 705 | if self.memory_list is not None: |
| 706 | for r in self.memory_list.ranges: |
| 707 | if r.start <= address < r.start + r.memory.data_size: |
| 708 | return r.memory.rva + address - r.start |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 709 | return None |
| 710 | |
| 711 | def GetDisasmLines(self, address, size): |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 712 | def CountUndefinedInstructions(lines): |
| 713 | pattern = "<UNDEFINED>" |
| 714 | return sum([line.count(pattern) for (ignore, line) in lines]) |
| 715 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 716 | location = self.FindLocation(address) |
| 717 | if location is None: return [] |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 718 | arch = None |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 719 | possible_objdump_flags = [""] |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 720 | if self.arch == MD_CPU_ARCHITECTURE_X86: |
| 721 | arch = "ia32" |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 722 | elif self.arch == MD_CPU_ARCHITECTURE_ARM: |
| 723 | arch = "arm" |
| 724 | possible_objdump_flags = ["", "--disassembler-options=force-thumb"] |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 725 | elif self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 726 | arch = "x64" |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 727 | results = [ disasm.GetDisasmLines(self.minidump_name, |
| 728 | location, |
| 729 | size, |
| 730 | arch, |
| 731 | False, |
| 732 | objdump_flags) |
| 733 | for objdump_flags in possible_objdump_flags ] |
| 734 | return min(results, key=CountUndefinedInstructions) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 735 | |
| 736 | |
| 737 | def Dispose(self): |
| 738 | self.minidump.close() |
| 739 | self.minidump_file.close() |
| 740 | |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 741 | def ExceptionIP(self): |
| 742 | if self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 743 | return self.exception_context.rip |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 744 | elif self.arch == MD_CPU_ARCHITECTURE_ARM: |
| 745 | return self.exception_context.pc |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 746 | elif self.arch == MD_CPU_ARCHITECTURE_X86: |
| 747 | return self.exception_context.eip |
| 748 | |
| 749 | def ExceptionSP(self): |
| 750 | if self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 751 | return self.exception_context.rsp |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 752 | elif self.arch == MD_CPU_ARCHITECTURE_ARM: |
| 753 | return self.exception_context.sp |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 754 | elif self.arch == MD_CPU_ARCHITECTURE_X86: |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 755 | return self.exception_context.esp |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 756 | |
| 757 | def FormatIntPtr(self, value): |
| 758 | if self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 759 | return "%016x" % value |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 760 | elif self.arch == MD_CPU_ARCHITECTURE_ARM: |
| 761 | return "%08x" % value |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 762 | elif self.arch == MD_CPU_ARCHITECTURE_X86: |
| 763 | return "%08x" % value |
| 764 | |
| 765 | def PointerSize(self): |
| 766 | if self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 767 | return 8 |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 768 | elif self.arch == MD_CPU_ARCHITECTURE_ARM: |
| 769 | return 4 |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 770 | elif self.arch == MD_CPU_ARCHITECTURE_X86: |
| 771 | return 4 |
| 772 | |
| 773 | def Register(self, name): |
| 774 | return self.exception_context.__getattribute__(name) |
| 775 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 776 | def ReadMinidumpString(self, rva): |
| 777 | string = bytearray(MINIDUMP_STRING.Read(self.minidump, rva).buffer) |
| 778 | string = string.decode("utf16") |
| 779 | return string[0:len(string) - 1] |
| 780 | |
| 781 | # Load FUNC records from a BreakPad symbol file |
| 782 | # |
| 783 | # http://code.google.com/p/google-breakpad/wiki/SymbolFiles |
| 784 | # |
| 785 | def _LoadSymbolsFrom(self, symfile, baseaddr): |
| 786 | print "Loading symbols from %s" % (symfile) |
| 787 | funcs = [] |
| 788 | with open(symfile) as f: |
| 789 | for line in f: |
| 790 | result = re.match( |
| 791 | r"^FUNC ([a-f0-9]+) ([a-f0-9]+) ([a-f0-9]+) (.*)$", line) |
| 792 | if result is not None: |
| 793 | start = int(result.group(1), 16) |
| 794 | size = int(result.group(2), 16) |
| 795 | name = result.group(4).rstrip() |
| 796 | bisect.insort_left(self.symbols, |
| 797 | FuncSymbol(baseaddr + start, size, name)) |
| 798 | print " ... done" |
| 799 | |
| 800 | def TryLoadSymbolsFor(self, modulename, module): |
| 801 | try: |
| 802 | symfile = os.path.join(self.symdir, |
| 803 | modulename.replace('.', '_') + ".pdb.sym") |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame^] | 804 | if os.path.isfile(symfile): |
| 805 | self._LoadSymbolsFrom(symfile, module.base_of_image) |
| 806 | self.modules_with_symbols.append(module) |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 807 | except Exception as e: |
| 808 | print " ... failure (%s)" % (e) |
| 809 | |
| 810 | # Returns true if address is covered by some module that has loaded symbols. |
| 811 | def _IsInModuleWithSymbols(self, addr): |
| 812 | for module in self.modules_with_symbols: |
| 813 | start = module.base_of_image |
| 814 | end = start + module.size_of_image |
| 815 | if (start <= addr) and (addr < end): |
| 816 | return True |
| 817 | return False |
| 818 | |
| 819 | # Find symbol covering the given address and return its name in format |
| 820 | # <symbol name>+<offset from the start> |
| 821 | def FindSymbol(self, addr): |
| 822 | if not self._IsInModuleWithSymbols(addr): |
| 823 | return None |
| 824 | |
| 825 | i = bisect.bisect_left(self.symbols, addr) |
| 826 | symbol = None |
| 827 | if (0 < i) and self.symbols[i - 1].Covers(addr): |
| 828 | symbol = self.symbols[i - 1] |
| 829 | elif (i < len(self.symbols)) and self.symbols[i].Covers(addr): |
| 830 | symbol = self.symbols[i] |
| 831 | else: |
| 832 | return None |
| 833 | diff = addr - symbol.start |
| 834 | return "%s+0x%x" % (symbol.name, diff) |
| 835 | |
| 836 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 837 | |
| 838 | # List of V8 instance types. Obtained by adding the code below to any .cc file. |
| 839 | # |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 840 | # #define DUMP_TYPE(T) printf(" %d: \"%s\",\n", T, #T); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 841 | # struct P { |
| 842 | # P() { |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 843 | # printf("INSTANCE_TYPES = {\n"); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 844 | # INSTANCE_TYPE_LIST(DUMP_TYPE) |
| 845 | # printf("}\n"); |
| 846 | # } |
| 847 | # }; |
| 848 | # static P p; |
| 849 | INSTANCE_TYPES = { |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 850 | 0: "STRING_TYPE", |
| 851 | 4: "ASCII_STRING_TYPE", |
| 852 | 1: "CONS_STRING_TYPE", |
| 853 | 5: "CONS_ASCII_STRING_TYPE", |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 854 | 3: "SLICED_STRING_TYPE", |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 855 | 2: "EXTERNAL_STRING_TYPE", |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 856 | 6: "EXTERNAL_ASCII_STRING_TYPE", |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 857 | 10: "EXTERNAL_STRING_WITH_ASCII_DATA_TYPE", |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 858 | 18: "SHORT_EXTERNAL_STRING_TYPE", |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 859 | 22: "SHORT_EXTERNAL_ASCII_STRING_TYPE", |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 860 | 26: "SHORT_EXTERNAL_STRING_WITH_ASCII_DATA_TYPE", |
| 861 | 64: "INTERNALIZED_STRING_TYPE", |
| 862 | 68: "ASCII_INTERNALIZED_STRING_TYPE", |
| 863 | 65: "CONS_INTERNALIZED_STRING_TYPE", |
| 864 | 69: "CONS_ASCII_INTERNALIZED_STRING_TYPE", |
| 865 | 66: "EXTERNAL_INTERNALIZED_STRING_TYPE", |
| 866 | 70: "EXTERNAL_ASCII_INTERNALIZED_STRING_TYPE", |
| 867 | 74: "EXTERNAL_INTERNALIZED_STRING_WITH_ASCII_DATA_TYPE", |
| 868 | 82: "SHORT_EXTERNAL_INTERNALIZED_STRING_TYPE", |
| 869 | 86: "SHORT_EXTERNAL_ASCII_INTERNALIZED_STRING_TYPE", |
| 870 | 90: "SHORT_EXTERNAL_INTERNALIZED_STRING_WITH_ASCII_DATA_TYPE", |
| 871 | 128: "SYMBOL_TYPE", |
| 872 | 129: "MAP_TYPE", |
| 873 | 130: "CODE_TYPE", |
| 874 | 131: "ODDBALL_TYPE", |
| 875 | 132: "JS_GLOBAL_PROPERTY_CELL_TYPE", |
| 876 | 133: "HEAP_NUMBER_TYPE", |
| 877 | 134: "FOREIGN_TYPE", |
| 878 | 135: "BYTE_ARRAY_TYPE", |
| 879 | 136: "FREE_SPACE_TYPE", |
| 880 | 137: "EXTERNAL_BYTE_ARRAY_TYPE", |
| 881 | 138: "EXTERNAL_UNSIGNED_BYTE_ARRAY_TYPE", |
| 882 | 139: "EXTERNAL_SHORT_ARRAY_TYPE", |
| 883 | 140: "EXTERNAL_UNSIGNED_SHORT_ARRAY_TYPE", |
| 884 | 141: "EXTERNAL_INT_ARRAY_TYPE", |
| 885 | 142: "EXTERNAL_UNSIGNED_INT_ARRAY_TYPE", |
| 886 | 143: "EXTERNAL_FLOAT_ARRAY_TYPE", |
| 887 | 145: "EXTERNAL_PIXEL_ARRAY_TYPE", |
| 888 | 147: "FILLER_TYPE", |
| 889 | 148: "DECLARED_ACCESSOR_DESCRIPTOR_TYPE", |
| 890 | 149: "DECLARED_ACCESSOR_INFO_TYPE", |
| 891 | 150: "EXECUTABLE_ACCESSOR_INFO_TYPE", |
| 892 | 151: "ACCESSOR_PAIR_TYPE", |
| 893 | 152: "ACCESS_CHECK_INFO_TYPE", |
| 894 | 153: "INTERCEPTOR_INFO_TYPE", |
| 895 | 154: "CALL_HANDLER_INFO_TYPE", |
| 896 | 155: "FUNCTION_TEMPLATE_INFO_TYPE", |
| 897 | 156: "OBJECT_TEMPLATE_INFO_TYPE", |
| 898 | 157: "SIGNATURE_INFO_TYPE", |
| 899 | 158: "TYPE_SWITCH_INFO_TYPE", |
| 900 | 159: "ALLOCATION_SITE_INFO_TYPE", |
| 901 | 160: "SCRIPT_TYPE", |
| 902 | 161: "CODE_CACHE_TYPE", |
| 903 | 162: "POLYMORPHIC_CODE_CACHE_TYPE", |
| 904 | 163: "TYPE_FEEDBACK_INFO_TYPE", |
| 905 | 164: "ALIASED_ARGUMENTS_ENTRY_TYPE", |
| 906 | 167: "FIXED_ARRAY_TYPE", |
| 907 | 146: "FIXED_DOUBLE_ARRAY_TYPE", |
| 908 | 168: "SHARED_FUNCTION_INFO_TYPE", |
| 909 | 169: "JS_MESSAGE_OBJECT_TYPE", |
| 910 | 172: "JS_VALUE_TYPE", |
| 911 | 173: "JS_DATE_TYPE", |
| 912 | 174: "JS_OBJECT_TYPE", |
| 913 | 175: "JS_CONTEXT_EXTENSION_OBJECT_TYPE", |
| 914 | 176: "JS_MODULE_TYPE", |
| 915 | 177: "JS_GLOBAL_OBJECT_TYPE", |
| 916 | 178: "JS_BUILTINS_OBJECT_TYPE", |
| 917 | 179: "JS_GLOBAL_PROXY_TYPE", |
| 918 | 180: "JS_ARRAY_TYPE", |
| 919 | 171: "JS_PROXY_TYPE", |
| 920 | 183: "JS_WEAK_MAP_TYPE", |
| 921 | 184: "JS_REGEXP_TYPE", |
| 922 | 185: "JS_FUNCTION_TYPE", |
| 923 | 170: "JS_FUNCTION_PROXY_TYPE", |
| 924 | 165: "DEBUG_INFO_TYPE", |
| 925 | 166: "BREAK_POINT_INFO_TYPE", |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 926 | } |
| 927 | |
| 928 | |
| 929 | # List of known V8 maps. Used to determine the instance type and name |
| 930 | # for maps that are part of the root-set and hence on the first page of |
| 931 | # the map-space. Obtained by adding the code below to an IA32 release |
| 932 | # build with enabled snapshots to the end of the Isolate::Init method. |
| 933 | # |
| 934 | # #define ROOT_LIST_CASE(type, name, camel_name) \ |
| 935 | # if (o == heap_.name()) n = #camel_name; |
| 936 | # #define STRUCT_LIST_CASE(upper_name, camel_name, name) \ |
| 937 | # if (o == heap_.name##_map()) n = #camel_name "Map"; |
| 938 | # HeapObjectIterator it(heap_.map_space()); |
| 939 | # printf("KNOWN_MAPS = {\n"); |
| 940 | # for (Object* o = it.Next(); o != NULL; o = it.Next()) { |
| 941 | # Map* m = Map::cast(o); |
| 942 | # const char* n = ""; |
| 943 | # intptr_t p = reinterpret_cast<intptr_t>(m) & 0xfffff; |
| 944 | # int t = m->instance_type(); |
| 945 | # ROOT_LIST(ROOT_LIST_CASE) |
| 946 | # STRUCT_LIST(STRUCT_LIST_CASE) |
| 947 | # printf(" 0x%05x: (%d, \"%s\"),\n", p, t, n); |
| 948 | # } |
| 949 | # printf("}\n"); |
| 950 | KNOWN_MAPS = { |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 951 | 0x08081: (135, "ByteArrayMap"), |
| 952 | 0x080a9: (129, "MetaMap"), |
| 953 | 0x080d1: (131, "OddballMap"), |
| 954 | 0x080f9: (68, "AsciiInternalizedStringMap"), |
| 955 | 0x08121: (167, "FixedArrayMap"), |
| 956 | 0x08149: (133, "HeapNumberMap"), |
| 957 | 0x08171: (136, "FreeSpaceMap"), |
| 958 | 0x08199: (147, "OnePointerFillerMap"), |
| 959 | 0x081c1: (147, "TwoPointerFillerMap"), |
| 960 | 0x081e9: (132, "GlobalPropertyCellMap"), |
| 961 | 0x08211: (168, "SharedFunctionInfoMap"), |
| 962 | 0x08239: (167, "NativeContextMap"), |
| 963 | 0x08261: (130, "CodeMap"), |
| 964 | 0x08289: (167, "ScopeInfoMap"), |
| 965 | 0x082b1: (167, "FixedCOWArrayMap"), |
| 966 | 0x082d9: (146, "FixedDoubleArrayMap"), |
| 967 | 0x08301: (167, "HashTableMap"), |
| 968 | 0x08329: (128, "SymbolMap"), |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 969 | 0x08351: (0, "StringMap"), |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 970 | 0x08379: (4, "AsciiStringMap"), |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 971 | 0x083a1: (1, "ConsStringMap"), |
| 972 | 0x083c9: (5, "ConsAsciiStringMap"), |
| 973 | 0x083f1: (3, "SlicedStringMap"), |
| 974 | 0x08419: (7, "SlicedAsciiStringMap"), |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 975 | 0x08441: (2, "ExternalStringMap"), |
| 976 | 0x08469: (10, "ExternalStringWithAsciiDataMap"), |
| 977 | 0x08491: (6, "ExternalAsciiStringMap"), |
| 978 | 0x084b9: (18, "ShortExternalStringMap"), |
| 979 | 0x084e1: (26, "ShortExternalStringWithAsciiDataMap"), |
| 980 | 0x08509: (64, "InternalizedStringMap"), |
| 981 | 0x08531: (65, "ConsInternalizedStringMap"), |
| 982 | 0x08559: (69, "ConsAsciiInternalizedStringMap"), |
| 983 | 0x08581: (66, "ExternalInternalizedStringMap"), |
| 984 | 0x085a9: (74, "ExternalInternalizedStringWithAsciiDataMap"), |
| 985 | 0x085d1: (70, "ExternalAsciiInternalizedStringMap"), |
| 986 | 0x085f9: (82, "ShortExternalInternalizedStringMap"), |
| 987 | 0x08621: (90, "ShortExternalInternalizedStringWithAsciiDataMap"), |
| 988 | 0x08649: (86, "ShortExternalAsciiInternalizedStringMap"), |
| 989 | 0x08671: (22, "ShortExternalAsciiStringMap"), |
| 990 | 0x08699: (0, "UndetectableStringMap"), |
| 991 | 0x086c1: (4, "UndetectableAsciiStringMap"), |
| 992 | 0x086e9: (145, "ExternalPixelArrayMap"), |
| 993 | 0x08711: (137, "ExternalByteArrayMap"), |
| 994 | 0x08739: (138, "ExternalUnsignedByteArrayMap"), |
| 995 | 0x08761: (139, "ExternalShortArrayMap"), |
| 996 | 0x08789: (140, "ExternalUnsignedShortArrayMap"), |
| 997 | 0x087b1: (141, "ExternalIntArrayMap"), |
| 998 | 0x087d9: (142, "ExternalUnsignedIntArrayMap"), |
| 999 | 0x08801: (143, "ExternalFloatArrayMap"), |
| 1000 | 0x08829: (144, "ExternalDoubleArrayMap"), |
| 1001 | 0x08851: (167, "NonStrictArgumentsElementsMap"), |
| 1002 | 0x08879: (167, "FunctionContextMap"), |
| 1003 | 0x088a1: (167, "CatchContextMap"), |
| 1004 | 0x088c9: (167, "WithContextMap"), |
| 1005 | 0x088f1: (167, "BlockContextMap"), |
| 1006 | 0x08919: (167, "ModuleContextMap"), |
| 1007 | 0x08941: (167, "GlobalContextMap"), |
| 1008 | 0x08969: (169, "JSMessageObjectMap"), |
| 1009 | 0x08991: (134, "ForeignMap"), |
| 1010 | 0x089b9: (174, "NeanderMap"), |
| 1011 | 0x089e1: (159, "AllocationSiteInfoMap"), |
| 1012 | 0x08a09: (162, "PolymorphicCodeCacheMap"), |
| 1013 | 0x08a31: (160, "ScriptMap"), |
| 1014 | 0x08a59: (174, ""), |
| 1015 | 0x08a81: (174, "ExternalMap"), |
| 1016 | 0x08aa9: (148, "DeclaredAccessorDescriptorMap"), |
| 1017 | 0x08ad1: (149, "DeclaredAccessorInfoMap"), |
| 1018 | 0x08af9: (150, "ExecutableAccessorInfoMap"), |
| 1019 | 0x08b21: (151, "AccessorPairMap"), |
| 1020 | 0x08b49: (152, "AccessCheckInfoMap"), |
| 1021 | 0x08b71: (153, "InterceptorInfoMap"), |
| 1022 | 0x08b99: (154, "CallHandlerInfoMap"), |
| 1023 | 0x08bc1: (155, "FunctionTemplateInfoMap"), |
| 1024 | 0x08be9: (156, "ObjectTemplateInfoMap"), |
| 1025 | 0x08c11: (157, "SignatureInfoMap"), |
| 1026 | 0x08c39: (158, "TypeSwitchInfoMap"), |
| 1027 | 0x08c61: (161, "CodeCacheMap"), |
| 1028 | 0x08c89: (163, "TypeFeedbackInfoMap"), |
| 1029 | 0x08cb1: (164, "AliasedArgumentsEntryMap"), |
| 1030 | 0x08cd9: (165, "DebugInfoMap"), |
| 1031 | 0x08d01: (166, "BreakPointInfoMap"), |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 1032 | } |
| 1033 | |
| 1034 | |
| 1035 | # List of known V8 objects. Used to determine name for objects that are |
| 1036 | # part of the root-set and hence on the first page of various old-space |
| 1037 | # paged. Obtained by adding the code below to an IA32 release build with |
| 1038 | # enabled snapshots to the end of the Isolate::Init method. |
| 1039 | # |
| 1040 | # #define ROOT_LIST_CASE(type, name, camel_name) \ |
| 1041 | # if (o == heap_.name()) n = #camel_name; |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 1042 | # OldSpaces spit(heap()); |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 1043 | # printf("KNOWN_OBJECTS = {\n"); |
| 1044 | # for (PagedSpace* s = spit.next(); s != NULL; s = spit.next()) { |
| 1045 | # HeapObjectIterator it(s); |
| 1046 | # const char* sname = AllocationSpaceName(s->identity()); |
| 1047 | # for (Object* o = it.Next(); o != NULL; o = it.Next()) { |
| 1048 | # const char* n = NULL; |
| 1049 | # intptr_t p = reinterpret_cast<intptr_t>(o) & 0xfffff; |
| 1050 | # ROOT_LIST(ROOT_LIST_CASE) |
| 1051 | # if (n != NULL) { |
| 1052 | # printf(" (\"%s\", 0x%05x): \"%s\",\n", sname, p, n); |
| 1053 | # } |
| 1054 | # } |
| 1055 | # } |
| 1056 | # printf("}\n"); |
| 1057 | KNOWN_OBJECTS = { |
| 1058 | ("OLD_POINTER_SPACE", 0x08081): "NullValue", |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 1059 | ("OLD_POINTER_SPACE", 0x08091): "UndefinedValue", |
| 1060 | ("OLD_POINTER_SPACE", 0x080a1): "InstanceofCacheMap", |
| 1061 | ("OLD_POINTER_SPACE", 0x080b1): "TrueValue", |
| 1062 | ("OLD_POINTER_SPACE", 0x080c1): "FalseValue", |
| 1063 | ("OLD_POINTER_SPACE", 0x080d1): "NoInterceptorResultSentinel", |
| 1064 | ("OLD_POINTER_SPACE", 0x080e1): "ArgumentsMarker", |
| 1065 | ("OLD_POINTER_SPACE", 0x080f1): "NumberStringCache", |
| 1066 | ("OLD_POINTER_SPACE", 0x088f9): "SingleCharacterStringCache", |
| 1067 | ("OLD_POINTER_SPACE", 0x08b01): "StringSplitCache", |
| 1068 | ("OLD_POINTER_SPACE", 0x08f09): "RegExpMultipleCache", |
| 1069 | ("OLD_POINTER_SPACE", 0x09311): "TerminationException", |
| 1070 | ("OLD_POINTER_SPACE", 0x09321): "MessageListeners", |
| 1071 | ("OLD_POINTER_SPACE", 0x0933d): "CodeStubs", |
| 1072 | ("OLD_POINTER_SPACE", 0x09fa5): "NonMonomorphicCache", |
| 1073 | ("OLD_POINTER_SPACE", 0x0a5b9): "PolymorphicCodeCache", |
| 1074 | ("OLD_POINTER_SPACE", 0x0a5c1): "NativesSourceCache", |
| 1075 | ("OLD_POINTER_SPACE", 0x0a601): "EmptyScript", |
| 1076 | ("OLD_POINTER_SPACE", 0x0a63d): "IntrinsicFunctionNames", |
| 1077 | ("OLD_POINTER_SPACE", 0x0d659): "ObservationState", |
| 1078 | ("OLD_POINTER_SPACE", 0x27415): "SymbolTable", |
| 1079 | ("OLD_DATA_SPACE", 0x08099): "EmptyDescriptorArray", |
| 1080 | ("OLD_DATA_SPACE", 0x080a1): "EmptyFixedArray", |
| 1081 | ("OLD_DATA_SPACE", 0x080a9): "NanValue", |
| 1082 | ("OLD_DATA_SPACE", 0x08125): "EmptyByteArray", |
| 1083 | ("OLD_DATA_SPACE", 0x0812d): "EmptyString", |
| 1084 | ("OLD_DATA_SPACE", 0x08259): "InfinityValue", |
| 1085 | ("OLD_DATA_SPACE", 0x08265): "MinusZeroValue", |
| 1086 | ("OLD_DATA_SPACE", 0x08271): "PrototypeAccessors", |
| 1087 | ("CODE_SPACE", 0x0aea1): "JsEntryCode", |
| 1088 | ("CODE_SPACE", 0x0b5c1): "JsConstructEntryCode", |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1089 | } |
| 1090 | |
| 1091 | |
| 1092 | class Printer(object): |
| 1093 | """Printer with indentation support.""" |
| 1094 | |
| 1095 | def __init__(self): |
| 1096 | self.indent = 0 |
| 1097 | |
| 1098 | def Indent(self): |
| 1099 | self.indent += 2 |
| 1100 | |
| 1101 | def Dedent(self): |
| 1102 | self.indent -= 2 |
| 1103 | |
| 1104 | def Print(self, string): |
| 1105 | print "%s%s" % (self._IndentString(), string) |
| 1106 | |
| 1107 | def PrintLines(self, lines): |
| 1108 | indent = self._IndentString() |
| 1109 | print "\n".join("%s%s" % (indent, line) for line in lines) |
| 1110 | |
| 1111 | def _IndentString(self): |
| 1112 | return self.indent * " " |
| 1113 | |
| 1114 | |
| 1115 | ADDRESS_RE = re.compile(r"0x[0-9a-fA-F]+") |
| 1116 | |
| 1117 | |
| 1118 | def FormatDisasmLine(start, heap, line): |
| 1119 | line_address = start + line[0] |
| 1120 | stack_slot = heap.stack_map.get(line_address) |
| 1121 | marker = " " |
| 1122 | if stack_slot: |
| 1123 | marker = "=>" |
| 1124 | code = AnnotateAddresses(heap, line[1]) |
| 1125 | return "%s%08x %08x: %s" % (marker, line_address, line[0], code) |
| 1126 | |
| 1127 | |
| 1128 | def AnnotateAddresses(heap, line): |
| 1129 | extra = [] |
| 1130 | for m in ADDRESS_RE.finditer(line): |
| 1131 | maybe_address = int(m.group(0), 16) |
| 1132 | object = heap.FindObject(maybe_address) |
| 1133 | if not object: continue |
| 1134 | extra.append(str(object)) |
| 1135 | if len(extra) == 0: return line |
| 1136 | return "%s ;; %s" % (line, ", ".join(extra)) |
| 1137 | |
| 1138 | |
| 1139 | class HeapObject(object): |
| 1140 | def __init__(self, heap, map, address): |
| 1141 | self.heap = heap |
| 1142 | self.map = map |
| 1143 | self.address = address |
| 1144 | |
| 1145 | def Is(self, cls): |
| 1146 | return isinstance(self, cls) |
| 1147 | |
| 1148 | def Print(self, p): |
| 1149 | p.Print(str(self)) |
| 1150 | |
| 1151 | def __str__(self): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1152 | return "HeapObject(%s, %s)" % (self.heap.reader.FormatIntPtr(self.address), |
| 1153 | INSTANCE_TYPES[self.map.instance_type]) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1154 | |
| 1155 | def ObjectField(self, offset): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1156 | field_value = self.heap.reader.ReadUIntPtr(self.address + offset) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1157 | return self.heap.FindObjectOrSmi(field_value) |
| 1158 | |
| 1159 | def SmiField(self, offset): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1160 | field_value = self.heap.reader.ReadUIntPtr(self.address + offset) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1161 | assert (field_value & 1) == 0 |
| 1162 | return field_value / 2 |
| 1163 | |
| 1164 | |
| 1165 | class Map(HeapObject): |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1166 | def Decode(self, offset, size, value): |
| 1167 | return (value >> offset) & ((1 << size) - 1) |
| 1168 | |
| 1169 | # Instance Sizes |
| 1170 | def InstanceSizesOffset(self): |
| 1171 | return self.heap.PointerSize() |
| 1172 | |
| 1173 | def InstanceSizeOffset(self): |
| 1174 | return self.InstanceSizesOffset() |
| 1175 | |
| 1176 | def InObjectProperties(self): |
| 1177 | return self.InstanceSizeOffset() + 1 |
| 1178 | |
| 1179 | def PreAllocatedPropertyFields(self): |
| 1180 | return self.InObjectProperties() + 1 |
| 1181 | |
| 1182 | def VisitorId(self): |
| 1183 | return self.PreAllocatedPropertyFields() + 1 |
| 1184 | |
| 1185 | # Instance Attributes |
| 1186 | def InstanceAttributesOffset(self): |
| 1187 | return self.InstanceSizesOffset() + self.heap.IntSize() |
| 1188 | |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 1189 | def InstanceTypeOffset(self): |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1190 | return self.InstanceAttributesOffset() |
| 1191 | |
| 1192 | def UnusedPropertyFieldsOffset(self): |
| 1193 | return self.InstanceTypeOffset() + 1 |
| 1194 | |
| 1195 | def BitFieldOffset(self): |
| 1196 | return self.UnusedPropertyFieldsOffset() + 1 |
| 1197 | |
| 1198 | def BitField2Offset(self): |
| 1199 | return self.BitFieldOffset() + 1 |
| 1200 | |
| 1201 | # Other fields |
| 1202 | def PrototypeOffset(self): |
| 1203 | return self.InstanceAttributesOffset() + self.heap.IntSize() |
| 1204 | |
| 1205 | def ConstructorOffset(self): |
| 1206 | return self.PrototypeOffset() + self.heap.PointerSize() |
| 1207 | |
| 1208 | def TransitionsOrBackPointerOffset(self): |
| 1209 | return self.ConstructorOffset() + self.heap.PointerSize() |
| 1210 | |
| 1211 | def DescriptorsOffset(self): |
| 1212 | return self.TransitionsOrBackPointerOffset() + self.heap.PointerSize() |
| 1213 | |
| 1214 | def CodeCacheOffset(self): |
| 1215 | return self.DescriptorsOffset() + self.heap.PointerSize() |
| 1216 | |
| 1217 | def DependentCodeOffset(self): |
| 1218 | return self.CodeCacheOffset() + self.heap.PointerSize() |
| 1219 | |
| 1220 | def BitField3Offset(self): |
| 1221 | return self.DependentCodeOffset() + self.heap.PointerSize() |
| 1222 | |
| 1223 | def ReadByte(self, offset): |
| 1224 | return self.heap.reader.ReadU8(self.address + offset) |
| 1225 | |
| 1226 | def Print(self, p): |
| 1227 | p.Print("Map(%08x)" % (self.address)) |
| 1228 | p.Print("- size: %d, inobject: %d, preallocated: %d, visitor: %d" % ( |
| 1229 | self.ReadByte(self.InstanceSizeOffset()), |
| 1230 | self.ReadByte(self.InObjectProperties()), |
| 1231 | self.ReadByte(self.PreAllocatedPropertyFields()), |
| 1232 | self.VisitorId())) |
| 1233 | |
| 1234 | bitfield = self.ReadByte(self.BitFieldOffset()) |
| 1235 | bitfield2 = self.ReadByte(self.BitField2Offset()) |
| 1236 | p.Print("- %s, unused: %d, bf: %d, bf2: %d" % ( |
| 1237 | INSTANCE_TYPES[self.ReadByte(self.InstanceTypeOffset())], |
| 1238 | self.ReadByte(self.UnusedPropertyFieldsOffset()), |
| 1239 | bitfield, bitfield2)) |
| 1240 | |
| 1241 | p.Print("- kind: %s" % (self.Decode(3, 5, bitfield2))) |
| 1242 | |
| 1243 | bitfield3 = self.ObjectField(self.BitField3Offset()) |
| 1244 | p.Print( |
| 1245 | "- EnumLength: %d NumberOfOwnDescriptors: %d OwnsDescriptors: %s" % ( |
| 1246 | self.Decode(0, 11, bitfield3), |
| 1247 | self.Decode(11, 11, bitfield3), |
| 1248 | self.Decode(25, 1, bitfield3))) |
| 1249 | p.Print("- IsShared: %s" % (self.Decode(22, 1, bitfield3))) |
| 1250 | p.Print("- FunctionWithPrototype: %s" % (self.Decode(23, 1, bitfield3))) |
| 1251 | p.Print("- DictionaryMap: %s" % (self.Decode(24, 1, bitfield3))) |
| 1252 | |
| 1253 | descriptors = self.ObjectField(self.DescriptorsOffset()) |
| 1254 | if descriptors.__class__ == FixedArray: |
| 1255 | DescriptorArray(descriptors).Print(p) |
| 1256 | else: |
| 1257 | p.Print("Descriptors: %s" % (descriptors)) |
| 1258 | |
| 1259 | transitions = self.ObjectField(self.TransitionsOrBackPointerOffset()) |
| 1260 | if transitions.__class__ == FixedArray: |
| 1261 | TransitionArray(transitions).Print(p) |
| 1262 | else: |
| 1263 | p.Print("TransitionsOrBackPointer: %s" % (transitions)) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1264 | |
| 1265 | def __init__(self, heap, map, address): |
| 1266 | HeapObject.__init__(self, heap, map, address) |
| 1267 | self.instance_type = \ |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1268 | heap.reader.ReadU8(self.address + self.InstanceTypeOffset()) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1269 | |
| 1270 | |
| 1271 | class String(HeapObject): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1272 | def LengthOffset(self): |
| 1273 | return self.heap.PointerSize() |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1274 | |
| 1275 | def __init__(self, heap, map, address): |
| 1276 | HeapObject.__init__(self, heap, map, address) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1277 | self.length = self.SmiField(self.LengthOffset()) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1278 | |
| 1279 | def GetChars(self): |
| 1280 | return "?string?" |
| 1281 | |
| 1282 | def Print(self, p): |
| 1283 | p.Print(str(self)) |
| 1284 | |
| 1285 | def __str__(self): |
| 1286 | return "\"%s\"" % self.GetChars() |
| 1287 | |
| 1288 | |
| 1289 | class SeqString(String): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1290 | def CharsOffset(self): |
| 1291 | return self.heap.PointerSize() * 3 |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1292 | |
| 1293 | def __init__(self, heap, map, address): |
| 1294 | String.__init__(self, heap, map, address) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1295 | self.chars = heap.reader.ReadBytes(self.address + self.CharsOffset(), |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1296 | self.length) |
| 1297 | |
| 1298 | def GetChars(self): |
| 1299 | return self.chars |
| 1300 | |
| 1301 | |
| 1302 | class ExternalString(String): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1303 | # TODO(vegorov) fix ExternalString for X64 architecture |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1304 | RESOURCE_OFFSET = 12 |
| 1305 | |
| 1306 | WEBKIT_RESOUCE_STRING_IMPL_OFFSET = 4 |
| 1307 | WEBKIT_STRING_IMPL_CHARS_OFFSET = 8 |
| 1308 | |
| 1309 | def __init__(self, heap, map, address): |
| 1310 | String.__init__(self, heap, map, address) |
| 1311 | reader = heap.reader |
| 1312 | self.resource = \ |
| 1313 | reader.ReadU32(self.address + ExternalString.RESOURCE_OFFSET) |
| 1314 | self.chars = "?external string?" |
| 1315 | if not reader.IsValidAddress(self.resource): return |
| 1316 | string_impl_address = self.resource + \ |
| 1317 | ExternalString.WEBKIT_RESOUCE_STRING_IMPL_OFFSET |
| 1318 | if not reader.IsValidAddress(string_impl_address): return |
| 1319 | string_impl = reader.ReadU32(string_impl_address) |
| 1320 | chars_ptr_address = string_impl + \ |
| 1321 | ExternalString.WEBKIT_STRING_IMPL_CHARS_OFFSET |
| 1322 | if not reader.IsValidAddress(chars_ptr_address): return |
| 1323 | chars_ptr = reader.ReadU32(chars_ptr_address) |
| 1324 | if not reader.IsValidAddress(chars_ptr): return |
| 1325 | raw_chars = reader.ReadBytes(chars_ptr, 2 * self.length) |
| 1326 | self.chars = codecs.getdecoder("utf16")(raw_chars)[0] |
| 1327 | |
| 1328 | def GetChars(self): |
| 1329 | return self.chars |
| 1330 | |
| 1331 | |
| 1332 | class ConsString(String): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1333 | def LeftOffset(self): |
| 1334 | return self.heap.PointerSize() * 3 |
| 1335 | |
| 1336 | def RightOffset(self): |
| 1337 | return self.heap.PointerSize() * 4 |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1338 | |
| 1339 | def __init__(self, heap, map, address): |
| 1340 | String.__init__(self, heap, map, address) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1341 | self.left = self.ObjectField(self.LeftOffset()) |
| 1342 | self.right = self.ObjectField(self.RightOffset()) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1343 | |
| 1344 | def GetChars(self): |
yangguo@chromium.org | cb9affa | 2012-05-15 12:16:38 +0000 | [diff] [blame] | 1345 | try: |
| 1346 | return self.left.GetChars() + self.right.GetChars() |
| 1347 | except: |
| 1348 | return "***CAUGHT EXCEPTION IN GROKDUMP***" |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1349 | |
| 1350 | |
| 1351 | class Oddball(HeapObject): |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1352 | # Should match declarations in objects.h |
| 1353 | KINDS = [ |
| 1354 | "False", |
| 1355 | "True", |
| 1356 | "TheHole", |
| 1357 | "Null", |
| 1358 | "ArgumentMarker", |
| 1359 | "Undefined", |
| 1360 | "Other" |
| 1361 | ] |
| 1362 | |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1363 | def ToStringOffset(self): |
| 1364 | return self.heap.PointerSize() |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1365 | |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1366 | def ToNumberOffset(self): |
| 1367 | return self.ToStringOffset() + self.heap.PointerSize() |
| 1368 | |
| 1369 | def KindOffset(self): |
| 1370 | return self.ToNumberOffset() + self.heap.PointerSize() |
| 1371 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1372 | def __init__(self, heap, map, address): |
| 1373 | HeapObject.__init__(self, heap, map, address) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1374 | self.to_string = self.ObjectField(self.ToStringOffset()) |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1375 | self.kind = self.SmiField(self.KindOffset()) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1376 | |
| 1377 | def Print(self, p): |
| 1378 | p.Print(str(self)) |
| 1379 | |
| 1380 | def __str__(self): |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 1381 | if self.to_string: |
| 1382 | return "Oddball(%08x, <%s>)" % (self.address, self.to_string.GetChars()) |
| 1383 | else: |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1384 | kind = "???" |
| 1385 | if 0 <= self.kind < len(Oddball.KINDS): |
| 1386 | kind = Oddball.KINDS[self.kind] |
| 1387 | return "Oddball(%08x, kind=%s)" % (self.address, kind) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1388 | |
| 1389 | |
| 1390 | class FixedArray(HeapObject): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1391 | def LengthOffset(self): |
| 1392 | return self.heap.PointerSize() |
| 1393 | |
| 1394 | def ElementsOffset(self): |
| 1395 | return self.heap.PointerSize() * 2 |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1396 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1397 | def MemberOffset(self, i): |
| 1398 | return self.ElementsOffset() + self.heap.PointerSize() * i |
| 1399 | |
| 1400 | def Get(self, i): |
| 1401 | return self.ObjectField(self.MemberOffset(i)) |
| 1402 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1403 | def __init__(self, heap, map, address): |
| 1404 | HeapObject.__init__(self, heap, map, address) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1405 | self.length = self.SmiField(self.LengthOffset()) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1406 | |
| 1407 | def Print(self, p): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1408 | p.Print("FixedArray(%s) {" % self.heap.reader.FormatIntPtr(self.address)) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1409 | p.Indent() |
| 1410 | p.Print("length: %d" % self.length) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1411 | base_offset = self.ElementsOffset() |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1412 | for i in xrange(self.length): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1413 | offset = base_offset + 4 * i |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 1414 | try: |
| 1415 | p.Print("[%08d] = %s" % (i, self.ObjectField(offset))) |
| 1416 | except TypeError: |
| 1417 | p.Dedent() |
| 1418 | p.Print("...") |
| 1419 | p.Print("}") |
| 1420 | return |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1421 | p.Dedent() |
| 1422 | p.Print("}") |
| 1423 | |
| 1424 | def __str__(self): |
| 1425 | return "FixedArray(%08x, length=%d)" % (self.address, self.length) |
| 1426 | |
| 1427 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1428 | class DescriptorArray(object): |
| 1429 | def __init__(self, array): |
| 1430 | self.array = array |
| 1431 | |
| 1432 | def Length(self): |
| 1433 | return self.array.Get(0) |
| 1434 | |
| 1435 | def Decode(self, offset, size, value): |
| 1436 | return (value >> offset) & ((1 << size) - 1) |
| 1437 | |
| 1438 | TYPES = [ |
| 1439 | "normal", |
| 1440 | "field", |
| 1441 | "function", |
| 1442 | "callbacks" |
| 1443 | ] |
| 1444 | |
| 1445 | def Type(self, value): |
| 1446 | return DescriptorArray.TYPES[self.Decode(0, 3, value)] |
| 1447 | |
| 1448 | def Attributes(self, value): |
| 1449 | attributes = self.Decode(3, 3, value) |
| 1450 | result = [] |
| 1451 | if (attributes & 0): result += ["ReadOnly"] |
| 1452 | if (attributes & 1): result += ["DontEnum"] |
| 1453 | if (attributes & 2): result += ["DontDelete"] |
| 1454 | return "[" + (",".join(result)) + "]" |
| 1455 | |
| 1456 | def Deleted(self, value): |
| 1457 | return self.Decode(6, 1, value) == 1 |
| 1458 | |
| 1459 | def Storage(self, value): |
| 1460 | return self.Decode(7, 11, value) |
| 1461 | |
| 1462 | def Pointer(self, value): |
| 1463 | return self.Decode(18, 11, value) |
| 1464 | |
| 1465 | def Details(self, di, value): |
| 1466 | return ( |
| 1467 | di, |
| 1468 | self.Type(value), |
| 1469 | self.Attributes(value), |
| 1470 | self.Storage(value), |
| 1471 | self.Pointer(value) |
| 1472 | ) |
| 1473 | |
| 1474 | |
| 1475 | def Print(self, p): |
| 1476 | length = self.Length() |
| 1477 | array = self.array |
| 1478 | |
| 1479 | p.Print("Descriptors(%08x, length=%d)" % (array.address, length)) |
| 1480 | p.Print("[et] %s" % (array.Get(1))) |
| 1481 | |
| 1482 | for di in xrange(length): |
| 1483 | i = 2 + di * 3 |
| 1484 | p.Print("0x%x" % (array.address + array.MemberOffset(i))) |
| 1485 | p.Print("[%i] name: %s" % (di, array.Get(i + 0))) |
| 1486 | p.Print("[%i] details: %s %s enum %i pointer %i" % \ |
| 1487 | self.Details(di, array.Get(i + 1))) |
| 1488 | p.Print("[%i] value: %s" % (di, array.Get(i + 2))) |
| 1489 | |
| 1490 | end = self.array.length // 3 |
| 1491 | if length != end: |
| 1492 | p.Print("[%i-%i] slack descriptors" % (length, end)) |
| 1493 | |
| 1494 | |
| 1495 | class TransitionArray(object): |
| 1496 | def __init__(self, array): |
| 1497 | self.array = array |
| 1498 | |
| 1499 | def IsSimpleTransition(self): |
| 1500 | return self.array.length <= 2 |
| 1501 | |
| 1502 | def Length(self): |
| 1503 | # SimpleTransition cases |
| 1504 | if self.IsSimpleTransition(): |
| 1505 | return self.array.length - 1 |
| 1506 | return (self.array.length - 3) // 2 |
| 1507 | |
| 1508 | def Print(self, p): |
| 1509 | length = self.Length() |
| 1510 | array = self.array |
| 1511 | |
| 1512 | p.Print("Transitions(%08x, length=%d)" % (array.address, length)) |
| 1513 | p.Print("[backpointer] %s" % (array.Get(0))) |
| 1514 | if self.IsSimpleTransition(): |
| 1515 | if length == 1: |
| 1516 | p.Print("[simple target] %s" % (array.Get(1))) |
| 1517 | return |
| 1518 | |
| 1519 | elements = array.Get(1) |
| 1520 | if elements is not None: |
| 1521 | p.Print("[elements ] %s" % (elements)) |
| 1522 | |
| 1523 | prototype = array.Get(2) |
| 1524 | if prototype is not None: |
| 1525 | p.Print("[prototype ] %s" % (prototype)) |
| 1526 | |
| 1527 | for di in xrange(length): |
| 1528 | i = 3 + di * 2 |
| 1529 | p.Print("[%i] symbol: %s" % (di, array.Get(i + 0))) |
| 1530 | p.Print("[%i] target: %s" % (di, array.Get(i + 1))) |
| 1531 | |
| 1532 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1533 | class JSFunction(HeapObject): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1534 | def CodeEntryOffset(self): |
| 1535 | return 3 * self.heap.PointerSize() |
| 1536 | |
| 1537 | def SharedOffset(self): |
| 1538 | return 5 * self.heap.PointerSize() |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1539 | |
| 1540 | def __init__(self, heap, map, address): |
| 1541 | HeapObject.__init__(self, heap, map, address) |
| 1542 | code_entry = \ |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1543 | heap.reader.ReadU32(self.address + self.CodeEntryOffset()) |
| 1544 | self.code = heap.FindObject(code_entry - Code.HeaderSize(heap) + 1) |
| 1545 | self.shared = self.ObjectField(self.SharedOffset()) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1546 | |
| 1547 | def Print(self, p): |
| 1548 | source = "\n".join(" %s" % line for line in self._GetSource().split("\n")) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1549 | p.Print("JSFunction(%s) {" % self.heap.reader.FormatIntPtr(self.address)) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1550 | p.Indent() |
| 1551 | p.Print("inferred name: %s" % self.shared.inferred_name) |
| 1552 | if self.shared.script.Is(Script) and self.shared.script.name.Is(String): |
| 1553 | p.Print("script name: %s" % self.shared.script.name) |
| 1554 | p.Print("source:") |
| 1555 | p.PrintLines(self._GetSource().split("\n")) |
| 1556 | p.Print("code:") |
| 1557 | self.code.Print(p) |
| 1558 | if self.code != self.shared.code: |
| 1559 | p.Print("unoptimized code:") |
| 1560 | self.shared.code.Print(p) |
| 1561 | p.Dedent() |
| 1562 | p.Print("}") |
| 1563 | |
| 1564 | def __str__(self): |
| 1565 | inferred_name = "" |
| 1566 | if self.shared.Is(SharedFunctionInfo): |
| 1567 | inferred_name = self.shared.inferred_name |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1568 | return "JSFunction(%s, %s)" % \ |
| 1569 | (self.heap.reader.FormatIntPtr(self.address), inferred_name) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1570 | |
| 1571 | def _GetSource(self): |
| 1572 | source = "?source?" |
| 1573 | start = self.shared.start_position |
| 1574 | end = self.shared.end_position |
| 1575 | if not self.shared.script.Is(Script): return source |
| 1576 | script_source = self.shared.script.source |
| 1577 | if not script_source.Is(String): return source |
| 1578 | return script_source.GetChars()[start:end] |
| 1579 | |
| 1580 | |
| 1581 | class SharedFunctionInfo(HeapObject): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1582 | def CodeOffset(self): |
| 1583 | return 2 * self.heap.PointerSize() |
| 1584 | |
| 1585 | def ScriptOffset(self): |
| 1586 | return 7 * self.heap.PointerSize() |
| 1587 | |
| 1588 | def InferredNameOffset(self): |
| 1589 | return 9 * self.heap.PointerSize() |
| 1590 | |
| 1591 | def EndPositionOffset(self): |
| 1592 | return 12 * self.heap.PointerSize() + 4 * self.heap.IntSize() |
| 1593 | |
| 1594 | def StartPositionAndTypeOffset(self): |
| 1595 | return 12 * self.heap.PointerSize() + 5 * self.heap.IntSize() |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1596 | |
| 1597 | def __init__(self, heap, map, address): |
| 1598 | HeapObject.__init__(self, heap, map, address) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1599 | self.code = self.ObjectField(self.CodeOffset()) |
| 1600 | self.script = self.ObjectField(self.ScriptOffset()) |
| 1601 | self.inferred_name = self.ObjectField(self.InferredNameOffset()) |
| 1602 | if heap.PointerSize() == 8: |
| 1603 | start_position_and_type = \ |
| 1604 | heap.reader.ReadU32(self.StartPositionAndTypeOffset()) |
| 1605 | self.start_position = start_position_and_type >> 2 |
| 1606 | pseudo_smi_end_position = \ |
| 1607 | heap.reader.ReadU32(self.EndPositionOffset()) |
| 1608 | self.end_position = pseudo_smi_end_position >> 2 |
| 1609 | else: |
| 1610 | start_position_and_type = \ |
| 1611 | self.SmiField(self.StartPositionAndTypeOffset()) |
| 1612 | self.start_position = start_position_and_type >> 2 |
| 1613 | self.end_position = \ |
| 1614 | self.SmiField(self.EndPositionOffset()) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1615 | |
| 1616 | |
| 1617 | class Script(HeapObject): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1618 | def SourceOffset(self): |
| 1619 | return self.heap.PointerSize() |
| 1620 | |
| 1621 | def NameOffset(self): |
| 1622 | return self.SourceOffset() + self.heap.PointerSize() |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1623 | |
| 1624 | def __init__(self, heap, map, address): |
| 1625 | HeapObject.__init__(self, heap, map, address) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1626 | self.source = self.ObjectField(self.SourceOffset()) |
| 1627 | self.name = self.ObjectField(self.NameOffset()) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1628 | |
| 1629 | |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 1630 | class CodeCache(HeapObject): |
| 1631 | def DefaultCacheOffset(self): |
| 1632 | return self.heap.PointerSize() |
| 1633 | |
| 1634 | def NormalTypeCacheOffset(self): |
| 1635 | return self.DefaultCacheOffset() + self.heap.PointerSize() |
| 1636 | |
| 1637 | def __init__(self, heap, map, address): |
| 1638 | HeapObject.__init__(self, heap, map, address) |
| 1639 | self.default_cache = self.ObjectField(self.DefaultCacheOffset()) |
| 1640 | self.normal_type_cache = self.ObjectField(self.NormalTypeCacheOffset()) |
| 1641 | |
| 1642 | def Print(self, p): |
| 1643 | p.Print("CodeCache(%s) {" % self.heap.reader.FormatIntPtr(self.address)) |
| 1644 | p.Indent() |
| 1645 | p.Print("default cache: %s" % self.default_cache) |
| 1646 | p.Print("normal type cache: %s" % self.normal_type_cache) |
| 1647 | p.Dedent() |
| 1648 | p.Print("}") |
| 1649 | |
| 1650 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1651 | class Code(HeapObject): |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1652 | CODE_ALIGNMENT_MASK = (1 << 5) - 1 |
| 1653 | |
| 1654 | def InstructionSizeOffset(self): |
| 1655 | return self.heap.PointerSize() |
| 1656 | |
| 1657 | @staticmethod |
| 1658 | def HeaderSize(heap): |
| 1659 | return (heap.PointerSize() + heap.IntSize() + \ |
| 1660 | 4 * heap.PointerSize() + 3 * heap.IntSize() + \ |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 1661 | Code.CODE_ALIGNMENT_MASK) & ~Code.CODE_ALIGNMENT_MASK |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1662 | |
| 1663 | def __init__(self, heap, map, address): |
| 1664 | HeapObject.__init__(self, heap, map, address) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1665 | self.entry = self.address + Code.HeaderSize(heap) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1666 | self.instruction_size = \ |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1667 | heap.reader.ReadU32(self.address + self.InstructionSizeOffset()) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1668 | |
| 1669 | def Print(self, p): |
| 1670 | lines = self.heap.reader.GetDisasmLines(self.entry, self.instruction_size) |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1671 | p.Print("Code(%s) {" % self.heap.reader.FormatIntPtr(self.address)) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1672 | p.Indent() |
| 1673 | p.Print("instruction_size: %d" % self.instruction_size) |
| 1674 | p.PrintLines(self._FormatLine(line) for line in lines) |
| 1675 | p.Dedent() |
| 1676 | p.Print("}") |
| 1677 | |
| 1678 | def _FormatLine(self, line): |
| 1679 | return FormatDisasmLine(self.entry, self.heap, line) |
| 1680 | |
| 1681 | |
| 1682 | class V8Heap(object): |
| 1683 | CLASS_MAP = { |
| 1684 | "SYMBOL_TYPE": SeqString, |
| 1685 | "ASCII_SYMBOL_TYPE": SeqString, |
| 1686 | "CONS_SYMBOL_TYPE": ConsString, |
| 1687 | "CONS_ASCII_SYMBOL_TYPE": ConsString, |
| 1688 | "EXTERNAL_SYMBOL_TYPE": ExternalString, |
| 1689 | "EXTERNAL_SYMBOL_WITH_ASCII_DATA_TYPE": ExternalString, |
| 1690 | "EXTERNAL_ASCII_SYMBOL_TYPE": ExternalString, |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 1691 | "SHORT_EXTERNAL_SYMBOL_TYPE": ExternalString, |
| 1692 | "SHORT_EXTERNAL_SYMBOL_WITH_ASCII_DATA_TYPE": ExternalString, |
| 1693 | "SHORT_EXTERNAL_ASCII_SYMBOL_TYPE": ExternalString, |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1694 | "STRING_TYPE": SeqString, |
| 1695 | "ASCII_STRING_TYPE": SeqString, |
| 1696 | "CONS_STRING_TYPE": ConsString, |
| 1697 | "CONS_ASCII_STRING_TYPE": ConsString, |
| 1698 | "EXTERNAL_STRING_TYPE": ExternalString, |
| 1699 | "EXTERNAL_STRING_WITH_ASCII_DATA_TYPE": ExternalString, |
| 1700 | "EXTERNAL_ASCII_STRING_TYPE": ExternalString, |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1701 | "MAP_TYPE": Map, |
| 1702 | "ODDBALL_TYPE": Oddball, |
| 1703 | "FIXED_ARRAY_TYPE": FixedArray, |
| 1704 | "JS_FUNCTION_TYPE": JSFunction, |
| 1705 | "SHARED_FUNCTION_INFO_TYPE": SharedFunctionInfo, |
| 1706 | "SCRIPT_TYPE": Script, |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 1707 | "CODE_CACHE_TYPE": CodeCache, |
| 1708 | "CODE_TYPE": Code, |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1709 | } |
| 1710 | |
| 1711 | def __init__(self, reader, stack_map): |
| 1712 | self.reader = reader |
| 1713 | self.stack_map = stack_map |
| 1714 | self.objects = {} |
| 1715 | |
| 1716 | def FindObjectOrSmi(self, tagged_address): |
| 1717 | if (tagged_address & 1) == 0: return tagged_address / 2 |
| 1718 | return self.FindObject(tagged_address) |
| 1719 | |
| 1720 | def FindObject(self, tagged_address): |
| 1721 | if tagged_address in self.objects: |
| 1722 | return self.objects[tagged_address] |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 1723 | if (tagged_address & self.ObjectAlignmentMask()) != 1: return None |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1724 | address = tagged_address - 1 |
| 1725 | if not self.reader.IsValidAddress(address): return None |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1726 | map_tagged_address = self.reader.ReadUIntPtr(address) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1727 | if tagged_address == map_tagged_address: |
| 1728 | # Meta map? |
| 1729 | meta_map = Map(self, None, address) |
| 1730 | instance_type_name = INSTANCE_TYPES.get(meta_map.instance_type) |
| 1731 | if instance_type_name != "MAP_TYPE": return None |
| 1732 | meta_map.map = meta_map |
| 1733 | object = meta_map |
| 1734 | else: |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 1735 | map = self.FindMap(map_tagged_address) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1736 | if map is None: return None |
| 1737 | instance_type_name = INSTANCE_TYPES.get(map.instance_type) |
| 1738 | if instance_type_name is None: return None |
| 1739 | cls = V8Heap.CLASS_MAP.get(instance_type_name, HeapObject) |
| 1740 | object = cls(self, map, address) |
| 1741 | self.objects[tagged_address] = object |
| 1742 | return object |
| 1743 | |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 1744 | def FindMap(self, tagged_address): |
| 1745 | if (tagged_address & self.MapAlignmentMask()) != 1: return None |
| 1746 | address = tagged_address - 1 |
| 1747 | if not self.reader.IsValidAddress(address): return None |
| 1748 | object = Map(self, None, address) |
| 1749 | return object |
| 1750 | |
| 1751 | def IntSize(self): |
| 1752 | return 4 |
| 1753 | |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1754 | def PointerSize(self): |
| 1755 | return self.reader.PointerSize() |
| 1756 | |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 1757 | def ObjectAlignmentMask(self): |
| 1758 | return self.PointerSize() - 1 |
| 1759 | |
| 1760 | def MapAlignmentMask(self): |
| 1761 | if self.reader.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 1762 | return (1 << 4) - 1 |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1763 | elif self.reader.arch == MD_CPU_ARCHITECTURE_ARM: |
| 1764 | return (1 << 4) - 1 |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 1765 | elif self.reader.arch == MD_CPU_ARCHITECTURE_X86: |
| 1766 | return (1 << 5) - 1 |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 1767 | |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 1768 | def PageAlignmentMask(self): |
| 1769 | return (1 << 20) - 1 |
| 1770 | |
| 1771 | |
| 1772 | class KnownObject(HeapObject): |
| 1773 | def __init__(self, heap, known_name): |
| 1774 | HeapObject.__init__(self, heap, None, None) |
| 1775 | self.known_name = known_name |
| 1776 | |
| 1777 | def __str__(self): |
| 1778 | return "<%s>" % self.known_name |
| 1779 | |
| 1780 | |
| 1781 | class KnownMap(HeapObject): |
| 1782 | def __init__(self, heap, known_name, instance_type): |
| 1783 | HeapObject.__init__(self, heap, None, None) |
| 1784 | self.instance_type = instance_type |
| 1785 | self.known_name = known_name |
| 1786 | |
| 1787 | def __str__(self): |
| 1788 | return "<%s>" % self.known_name |
| 1789 | |
| 1790 | |
| 1791 | class InspectionPadawan(object): |
| 1792 | """The padawan can improve annotations by sensing well-known objects.""" |
| 1793 | def __init__(self, reader, heap): |
| 1794 | self.reader = reader |
| 1795 | self.heap = heap |
| 1796 | self.known_first_map_page = 0 |
| 1797 | self.known_first_data_page = 0 |
| 1798 | self.known_first_pointer_page = 0 |
| 1799 | |
| 1800 | def __getattr__(self, name): |
| 1801 | """An InspectionPadawan can be used instead of V8Heap, even though |
| 1802 | it does not inherit from V8Heap (aka. mixin).""" |
| 1803 | return getattr(self.heap, name) |
| 1804 | |
| 1805 | def GetPageOffset(self, tagged_address): |
| 1806 | return tagged_address & self.heap.PageAlignmentMask() |
| 1807 | |
| 1808 | def IsInKnownMapSpace(self, tagged_address): |
| 1809 | page_address = tagged_address & ~self.heap.PageAlignmentMask() |
| 1810 | return page_address == self.known_first_map_page |
| 1811 | |
| 1812 | def IsInKnownOldSpace(self, tagged_address): |
| 1813 | page_address = tagged_address & ~self.heap.PageAlignmentMask() |
| 1814 | return page_address in [self.known_first_data_page, |
| 1815 | self.known_first_pointer_page] |
| 1816 | |
| 1817 | def ContainingKnownOldSpaceName(self, tagged_address): |
| 1818 | page_address = tagged_address & ~self.heap.PageAlignmentMask() |
| 1819 | if page_address == self.known_first_data_page: return "OLD_DATA_SPACE" |
| 1820 | if page_address == self.known_first_pointer_page: return "OLD_POINTER_SPACE" |
| 1821 | return None |
| 1822 | |
| 1823 | def SenseObject(self, tagged_address): |
| 1824 | if self.IsInKnownOldSpace(tagged_address): |
| 1825 | offset = self.GetPageOffset(tagged_address) |
| 1826 | lookup_key = (self.ContainingKnownOldSpaceName(tagged_address), offset) |
| 1827 | known_obj_name = KNOWN_OBJECTS.get(lookup_key) |
| 1828 | if known_obj_name: |
| 1829 | return KnownObject(self, known_obj_name) |
| 1830 | if self.IsInKnownMapSpace(tagged_address): |
| 1831 | known_map = self.SenseMap(tagged_address) |
| 1832 | if known_map: |
| 1833 | return known_map |
| 1834 | found_obj = self.heap.FindObject(tagged_address) |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 1835 | if found_obj: return found_obj |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 1836 | address = tagged_address - 1 |
| 1837 | if self.reader.IsValidAddress(address): |
| 1838 | map_tagged_address = self.reader.ReadUIntPtr(address) |
| 1839 | map = self.SenseMap(map_tagged_address) |
| 1840 | if map is None: return None |
| 1841 | instance_type_name = INSTANCE_TYPES.get(map.instance_type) |
| 1842 | if instance_type_name is None: return None |
| 1843 | cls = V8Heap.CLASS_MAP.get(instance_type_name, HeapObject) |
| 1844 | return cls(self, map, address) |
| 1845 | return None |
| 1846 | |
| 1847 | def SenseMap(self, tagged_address): |
| 1848 | if self.IsInKnownMapSpace(tagged_address): |
| 1849 | offset = self.GetPageOffset(tagged_address) |
| 1850 | known_map_info = KNOWN_MAPS.get(offset) |
| 1851 | if known_map_info: |
| 1852 | known_map_type, known_map_name = known_map_info |
| 1853 | return KnownMap(self, known_map_name, known_map_type) |
| 1854 | found_map = self.heap.FindMap(tagged_address) |
| 1855 | if found_map: return found_map |
| 1856 | return None |
| 1857 | |
| 1858 | def FindObjectOrSmi(self, tagged_address): |
| 1859 | """When used as a mixin in place of V8Heap.""" |
| 1860 | found_obj = self.SenseObject(tagged_address) |
| 1861 | if found_obj: return found_obj |
| 1862 | if (tagged_address & 1) == 0: |
| 1863 | return "Smi(%d)" % (tagged_address / 2) |
| 1864 | else: |
| 1865 | return "Unknown(%s)" % self.reader.FormatIntPtr(tagged_address) |
| 1866 | |
| 1867 | def FindObject(self, tagged_address): |
| 1868 | """When used as a mixin in place of V8Heap.""" |
| 1869 | raise NotImplementedError |
| 1870 | |
| 1871 | def FindMap(self, tagged_address): |
| 1872 | """When used as a mixin in place of V8Heap.""" |
| 1873 | raise NotImplementedError |
| 1874 | |
| 1875 | def PrintKnowledge(self): |
| 1876 | print " known_first_map_page = %s\n"\ |
| 1877 | " known_first_data_page = %s\n"\ |
| 1878 | " known_first_pointer_page = %s" % ( |
| 1879 | self.reader.FormatIntPtr(self.known_first_map_page), |
| 1880 | self.reader.FormatIntPtr(self.known_first_data_page), |
| 1881 | self.reader.FormatIntPtr(self.known_first_pointer_page)) |
| 1882 | |
| 1883 | |
| 1884 | class InspectionShell(cmd.Cmd): |
| 1885 | def __init__(self, reader, heap): |
| 1886 | cmd.Cmd.__init__(self) |
| 1887 | self.reader = reader |
| 1888 | self.heap = heap |
| 1889 | self.padawan = InspectionPadawan(reader, heap) |
| 1890 | self.prompt = "(grok) " |
| 1891 | |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 1892 | def do_da(self, address): |
| 1893 | """ |
| 1894 | Print ASCII string starting at specified address. |
| 1895 | """ |
| 1896 | address = int(address, 16) |
| 1897 | string = "" |
| 1898 | while self.reader.IsValidAddress(address): |
| 1899 | code = self.reader.ReadU8(address) |
| 1900 | if code < 128: |
| 1901 | string += chr(code) |
| 1902 | else: |
| 1903 | break |
| 1904 | address += 1 |
| 1905 | if string == "": |
| 1906 | print "Not an ASCII string at %s" % self.reader.FormatIntPtr(address) |
| 1907 | else: |
| 1908 | print "%s\n" % string |
| 1909 | |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 1910 | def do_dd(self, address): |
| 1911 | """ |
| 1912 | Interpret memory at the given address (if available) as a sequence |
| 1913 | of words. Automatic alignment is not performed. |
| 1914 | """ |
| 1915 | start = int(address, 16) |
| 1916 | if (start & self.heap.ObjectAlignmentMask()) != 0: |
| 1917 | print "Warning: Dumping un-aligned memory, is this what you had in mind?" |
| 1918 | for slot in xrange(start, |
| 1919 | start + self.reader.PointerSize() * 10, |
| 1920 | self.reader.PointerSize()): |
rossberg@chromium.org | 400388e | 2012-06-06 09:29:22 +0000 | [diff] [blame] | 1921 | if not self.reader.IsValidAddress(slot): |
| 1922 | print "Address is not contained within the minidump!" |
| 1923 | return |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 1924 | maybe_address = self.reader.ReadUIntPtr(slot) |
| 1925 | heap_object = self.padawan.SenseObject(maybe_address) |
| 1926 | print "%s: %s %s" % (self.reader.FormatIntPtr(slot), |
| 1927 | self.reader.FormatIntPtr(maybe_address), |
| 1928 | heap_object or '') |
| 1929 | |
| 1930 | def do_do(self, address): |
| 1931 | """ |
| 1932 | Interpret memory at the given address as a V8 object. Automatic |
| 1933 | alignment makes sure that you can pass tagged as well as un-tagged |
| 1934 | addresses. |
| 1935 | """ |
| 1936 | address = int(address, 16) |
| 1937 | if (address & self.heap.ObjectAlignmentMask()) == 0: |
| 1938 | address = address + 1 |
| 1939 | elif (address & self.heap.ObjectAlignmentMask()) != 1: |
| 1940 | print "Address doesn't look like a valid pointer!" |
| 1941 | return |
| 1942 | heap_object = self.padawan.SenseObject(address) |
| 1943 | if heap_object: |
| 1944 | heap_object.Print(Printer()) |
| 1945 | else: |
| 1946 | print "Address cannot be interpreted as object!" |
| 1947 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1948 | def do_do_desc(self, address): |
| 1949 | """ |
| 1950 | Print a descriptor array in a readable format. |
| 1951 | """ |
| 1952 | start = int(address, 16) |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 1953 | if ((start & 1) == 1): start = start - 1 |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1954 | DescriptorArray(FixedArray(self.heap, None, start)).Print(Printer()) |
| 1955 | |
| 1956 | def do_do_map(self, address): |
| 1957 | """ |
| 1958 | Print a descriptor array in a readable format. |
| 1959 | """ |
| 1960 | start = int(address, 16) |
| 1961 | if ((start & 1) == 1): start = start - 1 |
| 1962 | Map(self.heap, None, start).Print(Printer()) |
| 1963 | |
| 1964 | def do_do_trans(self, address): |
| 1965 | """ |
| 1966 | Print a transition array in a readable format. |
| 1967 | """ |
| 1968 | start = int(address, 16) |
| 1969 | if ((start & 1) == 1): start = start - 1 |
| 1970 | TransitionArray(FixedArray(self.heap, None, start)).Print(Printer()) |
| 1971 | |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 1972 | def do_dp(self, address): |
| 1973 | """ |
| 1974 | Interpret memory at the given address as being on a V8 heap page |
| 1975 | and print information about the page header (if available). |
| 1976 | """ |
| 1977 | address = int(address, 16) |
| 1978 | page_address = address & ~self.heap.PageAlignmentMask() |
| 1979 | if self.reader.IsValidAddress(page_address): |
| 1980 | raise NotImplementedError |
| 1981 | else: |
| 1982 | print "Page header is not available!" |
| 1983 | |
| 1984 | def do_k(self, arguments): |
| 1985 | """ |
| 1986 | Teach V8 heap layout information to the inspector. This increases |
| 1987 | the amount of annotations the inspector can produce while dumping |
| 1988 | data. The first page of each heap space is of particular interest |
| 1989 | because it contains known objects that do not move. |
| 1990 | """ |
| 1991 | self.padawan.PrintKnowledge() |
| 1992 | |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 1993 | def do_kd(self, address): |
| 1994 | """ |
| 1995 | Teach V8 heap layout information to the inspector. Set the first |
| 1996 | data-space page by passing any pointer into that page. |
| 1997 | """ |
| 1998 | address = int(address, 16) |
| 1999 | page_address = address & ~self.heap.PageAlignmentMask() |
| 2000 | self.padawan.known_first_data_page = page_address |
| 2001 | |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 2002 | def do_km(self, address): |
| 2003 | """ |
| 2004 | Teach V8 heap layout information to the inspector. Set the first |
| 2005 | map-space page by passing any pointer into that page. |
| 2006 | """ |
| 2007 | address = int(address, 16) |
| 2008 | page_address = address & ~self.heap.PageAlignmentMask() |
| 2009 | self.padawan.known_first_map_page = page_address |
| 2010 | |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 2011 | def do_kp(self, address): |
| 2012 | """ |
| 2013 | Teach V8 heap layout information to the inspector. Set the first |
| 2014 | pointer-space page by passing any pointer into that page. |
| 2015 | """ |
| 2016 | address = int(address, 16) |
| 2017 | page_address = address & ~self.heap.PageAlignmentMask() |
| 2018 | self.padawan.known_first_pointer_page = page_address |
| 2019 | |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 2020 | def do_list(self, smth): |
| 2021 | """ |
| 2022 | List all available memory regions. |
| 2023 | """ |
| 2024 | def print_region(reader, start, size, location): |
| 2025 | print " %s - %s (%d bytes)" % (reader.FormatIntPtr(start), |
| 2026 | reader.FormatIntPtr(start + size), |
| 2027 | size) |
| 2028 | print "Available memory regions:" |
| 2029 | self.reader.ForEachMemoryRegion(print_region) |
| 2030 | |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame^] | 2031 | def do_lm(self, arg): |
| 2032 | """ |
| 2033 | List details for all loaded modules in the minidump. An argument can |
| 2034 | be passed to limit the output to only those modules that contain the |
| 2035 | argument as a substring (case insensitive match). |
| 2036 | """ |
| 2037 | for module in self.reader.module_list.modules: |
| 2038 | if arg: |
| 2039 | name = GetModuleName(self.reader, module).lower() |
| 2040 | if name.find(arg.lower()) >= 0: |
| 2041 | PrintModuleDetails(self.reader, module) |
| 2042 | else: |
| 2043 | PrintModuleDetails(self.reader, module) |
| 2044 | print |
| 2045 | |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 2046 | def do_s(self, word): |
| 2047 | """ |
| 2048 | Search for a given word in available memory regions. The given word |
| 2049 | is expanded to full pointer size and searched at aligned as well as |
| 2050 | un-aligned memory locations. Use 'sa' to search aligned locations |
| 2051 | only. |
| 2052 | """ |
| 2053 | try: |
| 2054 | word = int(word, 0) |
| 2055 | except ValueError: |
| 2056 | print "Malformed word, prefix with '0x' to use hexadecimal format." |
| 2057 | return |
| 2058 | print "Searching for word %d/0x%s:" % (word, self.reader.FormatIntPtr(word)) |
| 2059 | self.reader.FindWord(word) |
| 2060 | |
| 2061 | def do_sh(self, none): |
| 2062 | """ |
| 2063 | Search for the V8 Heap object in all available memory regions. You |
| 2064 | might get lucky and find this rare treasure full of invaluable |
| 2065 | information. |
| 2066 | """ |
| 2067 | raise NotImplementedError |
| 2068 | |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 2069 | def do_u(self, args): |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 2070 | """ |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 2071 | Unassemble memory in the region [address, address + size). If the |
| 2072 | size is not specified, a default value of 32 bytes is used. |
| 2073 | Synopsis: u 0x<address> 0x<size> |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 2074 | """ |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 2075 | args = args.split(' ') |
| 2076 | start = int(args[0], 16) |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 2077 | size = int(args[1], 16) if len(args) > 1 else 0x20 |
| 2078 | if not self.reader.IsValidAddress(start): |
| 2079 | print "Address is not contained within the minidump!" |
| 2080 | return |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 2081 | lines = self.reader.GetDisasmLines(start, size) |
| 2082 | for line in lines: |
| 2083 | print FormatDisasmLine(start, self.heap, line) |
| 2084 | print |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2085 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 2086 | def do_EOF(self, none): |
| 2087 | raise KeyboardInterrupt |
| 2088 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2089 | EIP_PROXIMITY = 64 |
| 2090 | |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 2091 | CONTEXT_FOR_ARCH = { |
| 2092 | MD_CPU_ARCHITECTURE_AMD64: |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2093 | ['rax', 'rbx', 'rcx', 'rdx', 'rdi', 'rsi', 'rbp', 'rsp', 'rip', |
| 2094 | 'r8', 'r9', 'r10', 'r11', 'r12', 'r13', 'r14', 'r15'], |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2095 | MD_CPU_ARCHITECTURE_ARM: |
| 2096 | ['r0', 'r1', 'r2', 'r3', 'r4', 'r5', 'r6', 'r7', 'r8', 'r9', |
| 2097 | 'r10', 'r11', 'r12', 'sp', 'lr', 'pc'], |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 2098 | MD_CPU_ARCHITECTURE_X86: |
| 2099 | ['eax', 'ebx', 'ecx', 'edx', 'edi', 'esi', 'ebp', 'esp', 'eip'] |
| 2100 | } |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2101 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2102 | KNOWN_MODULES = {'chrome.exe', 'chrome.dll'} |
| 2103 | |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame^] | 2104 | def GetVersionString(ms, ls): |
| 2105 | return "%d.%d.%d.%d" % (ms >> 16, ms & 0xffff, ls >> 16, ls & 0xffff) |
| 2106 | |
| 2107 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2108 | def GetModuleName(reader, module): |
| 2109 | name = reader.ReadMinidumpString(module.module_name_rva) |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame^] | 2110 | # simplify for path manipulation |
| 2111 | name = name.encode('utf-8') |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2112 | return str(os.path.basename(str(name).replace("\\", "/"))) |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 2113 | |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame^] | 2114 | |
| 2115 | def PrintModuleDetails(reader, module): |
| 2116 | print "%s" % GetModuleName(reader, module) |
| 2117 | file_version = GetVersionString(module.version_info.dwFileVersionMS, |
| 2118 | module.version_info.dwFileVersionLS) |
| 2119 | product_version = GetVersionString(module.version_info.dwProductVersionMS, |
| 2120 | module.version_info.dwProductVersionLS) |
| 2121 | print " base: %s" % reader.FormatIntPtr(module.base_of_image) |
| 2122 | print " end: %s" % reader.FormatIntPtr(module.base_of_image + |
| 2123 | module.size_of_image) |
| 2124 | print " file version: %s" % file_version |
| 2125 | print " product version: %s" % product_version |
| 2126 | time_date_stamp = datetime.datetime.fromtimestamp(module.time_date_stamp) |
| 2127 | print " timestamp: %s" % time_date_stamp |
| 2128 | |
| 2129 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2130 | def AnalyzeMinidump(options, minidump_name): |
| 2131 | reader = MinidumpReader(options, minidump_name) |
mstarzinger@chromium.org | 15613d0 | 2012-05-23 12:04:37 +0000 | [diff] [blame] | 2132 | heap = None |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2133 | DebugPrint("========================================") |
| 2134 | if reader.exception is None: |
| 2135 | print "Minidump has no exception info" |
mstarzinger@chromium.org | 15613d0 | 2012-05-23 12:04:37 +0000 | [diff] [blame] | 2136 | else: |
| 2137 | print "Exception info:" |
| 2138 | exception_thread = reader.thread_map[reader.exception.thread_id] |
| 2139 | print " thread id: %d" % exception_thread.id |
| 2140 | print " code: %08X" % reader.exception.exception.code |
| 2141 | print " context:" |
| 2142 | for r in CONTEXT_FOR_ARCH[reader.arch]: |
| 2143 | print " %s: %s" % (r, reader.FormatIntPtr(reader.Register(r))) |
| 2144 | # TODO(vitalyr): decode eflags. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2145 | if reader.arch == MD_CPU_ARCHITECTURE_ARM: |
| 2146 | print " cpsr: %s" % bin(reader.exception_context.cpsr)[2:] |
| 2147 | else: |
| 2148 | print " eflags: %s" % bin(reader.exception_context.eflags)[2:] |
| 2149 | |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame^] | 2150 | print |
| 2151 | print " modules:" |
| 2152 | for module in reader.module_list.modules: |
| 2153 | name = GetModuleName(reader, module) |
| 2154 | if name in KNOWN_MODULES: |
| 2155 | print " %s at %08X" % (name, module.base_of_image) |
| 2156 | reader.TryLoadSymbolsFor(name, module) |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2157 | print |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2158 | |
mstarzinger@chromium.org | 15613d0 | 2012-05-23 12:04:37 +0000 | [diff] [blame] | 2159 | stack_top = reader.ExceptionSP() |
| 2160 | stack_bottom = exception_thread.stack.start + \ |
| 2161 | exception_thread.stack.memory.data_size |
| 2162 | stack_map = {reader.ExceptionIP(): -1} |
| 2163 | for slot in xrange(stack_top, stack_bottom, reader.PointerSize()): |
| 2164 | maybe_address = reader.ReadUIntPtr(slot) |
| 2165 | if not maybe_address in stack_map: |
| 2166 | stack_map[maybe_address] = slot |
| 2167 | heap = V8Heap(reader, stack_map) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2168 | |
mstarzinger@chromium.org | 15613d0 | 2012-05-23 12:04:37 +0000 | [diff] [blame] | 2169 | print "Disassembly around exception.eip:" |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2170 | eip_symbol = reader.FindSymbol(reader.ExceptionIP()) |
| 2171 | if eip_symbol is not None: |
| 2172 | print eip_symbol |
mstarzinger@chromium.org | 15613d0 | 2012-05-23 12:04:37 +0000 | [diff] [blame] | 2173 | disasm_start = reader.ExceptionIP() - EIP_PROXIMITY |
| 2174 | disasm_bytes = 2 * EIP_PROXIMITY |
| 2175 | if (options.full): |
| 2176 | full_range = reader.FindRegion(reader.ExceptionIP()) |
| 2177 | if full_range is not None: |
| 2178 | disasm_start = full_range[0] |
| 2179 | disasm_bytes = full_range[1] |
| 2180 | |
| 2181 | lines = reader.GetDisasmLines(disasm_start, disasm_bytes) |
| 2182 | |
| 2183 | for line in lines: |
| 2184 | print FormatDisasmLine(disasm_start, heap, line) |
| 2185 | print |
| 2186 | |
| 2187 | if heap is None: |
| 2188 | heap = V8Heap(reader, None) |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2189 | |
yangguo@chromium.org | cb9affa | 2012-05-15 12:16:38 +0000 | [diff] [blame] | 2190 | if options.full: |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 2191 | FullDump(reader, heap) |
yangguo@chromium.org | cb9affa | 2012-05-15 12:16:38 +0000 | [diff] [blame] | 2192 | |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame^] | 2193 | if options.command: |
| 2194 | InspectionShell(reader, heap).onecmd(options.command) |
| 2195 | |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 2196 | if options.shell: |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 2197 | try: |
| 2198 | InspectionShell(reader, heap).cmdloop("type help to get help") |
| 2199 | except KeyboardInterrupt: |
| 2200 | print "Kthxbye." |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame^] | 2201 | elif not options.command: |
mstarzinger@chromium.org | 15613d0 | 2012-05-23 12:04:37 +0000 | [diff] [blame] | 2202 | if reader.exception is not None: |
| 2203 | print "Annotated stack (from exception.esp to bottom):" |
| 2204 | for slot in xrange(stack_top, stack_bottom, reader.PointerSize()): |
| 2205 | maybe_address = reader.ReadUIntPtr(slot) |
| 2206 | heap_object = heap.FindObject(maybe_address) |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2207 | maybe_symbol = reader.FindSymbol(maybe_address) |
| 2208 | print "%s: %s %s" % (reader.FormatIntPtr(slot), |
| 2209 | reader.FormatIntPtr(maybe_address), |
| 2210 | maybe_symbol or "") |
mstarzinger@chromium.org | 15613d0 | 2012-05-23 12:04:37 +0000 | [diff] [blame] | 2211 | if heap_object: |
| 2212 | heap_object.Print(Printer()) |
| 2213 | print |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2214 | |
| 2215 | reader.Dispose() |
| 2216 | |
| 2217 | |
| 2218 | if __name__ == "__main__": |
| 2219 | parser = optparse.OptionParser(USAGE) |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 2220 | parser.add_option("-s", "--shell", dest="shell", action="store_true", |
| 2221 | help="start an interactive inspector shell") |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame^] | 2222 | parser.add_option("-c", "--command", dest="command", default="", |
| 2223 | help="run an interactive inspector shell command and exit") |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 2224 | parser.add_option("-f", "--full", dest="full", action="store_true", |
| 2225 | help="dump all information contained in the minidump") |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2226 | parser.add_option("--symdir", dest="symdir", default=".", |
| 2227 | help="directory containing *.pdb.sym file with symbols") |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2228 | parser.add_option("--objdump", |
| 2229 | default="/usr/bin/objdump", |
| 2230 | help="objdump tool to use [default: %default]") |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2231 | options, args = parser.parse_args() |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2232 | if os.path.exists(options.objdump): |
| 2233 | disasm.OBJDUMP_BIN = options.objdump |
| 2234 | OBJDUMP_BIN = options.objdump |
| 2235 | else: |
| 2236 | print "Cannot find %s, falling back to default objdump" % options.objdump |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2237 | if len(args) != 1: |
| 2238 | parser.print_help() |
| 2239 | sys.exit(1) |
| 2240 | AnalyzeMinidump(options, args[0]) |