Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1 | #!/usr/bin/env python |
| 2 | # |
| 3 | # Copyright 2011 the V8 project authors. All rights reserved. |
| 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 | |
| 30 | import ctypes |
| 31 | import mmap |
| 32 | import optparse |
| 33 | import os |
| 34 | import disasm |
| 35 | import sys |
| 36 | import types |
| 37 | import codecs |
| 38 | import re |
| 39 | |
| 40 | |
| 41 | USAGE="""usage: %prog [OPTION]... |
| 42 | |
| 43 | Minidump analyzer. |
| 44 | |
| 45 | Shows the processor state at the point of exception including the |
| 46 | stack of the active thread and the referenced objects in the V8 |
| 47 | heap. Code objects are disassembled and the addresses linked from the |
| 48 | stack (pushed return addresses) are marked with "=>". |
| 49 | |
| 50 | |
| 51 | Examples: |
| 52 | $ %prog 12345678-1234-1234-1234-123456789abcd-full.dmp |
| 53 | """ |
| 54 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 55 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 56 | DEBUG=False |
| 57 | |
| 58 | |
| 59 | def DebugPrint(s): |
| 60 | if not DEBUG: return |
| 61 | print s |
| 62 | |
| 63 | |
| 64 | class Descriptor(object): |
| 65 | """Descriptor of a structure in a memory.""" |
| 66 | |
| 67 | def __init__(self, fields): |
| 68 | self.fields = fields |
| 69 | self.is_flexible = False |
| 70 | for _, type_or_func in fields: |
| 71 | if isinstance(type_or_func, types.FunctionType): |
| 72 | self.is_flexible = True |
| 73 | break |
| 74 | if not self.is_flexible: |
| 75 | self.ctype = Descriptor._GetCtype(fields) |
| 76 | self.size = ctypes.sizeof(self.ctype) |
| 77 | |
| 78 | def Read(self, memory, offset): |
| 79 | if self.is_flexible: |
| 80 | fields_copy = self.fields[:] |
| 81 | last = 0 |
| 82 | for name, type_or_func in fields_copy: |
| 83 | if isinstance(type_or_func, types.FunctionType): |
| 84 | partial_ctype = Descriptor._GetCtype(fields_copy[:last]) |
| 85 | partial_object = partial_ctype.from_buffer(memory, offset) |
| 86 | type = type_or_func(partial_object) |
| 87 | if type is not None: |
| 88 | fields_copy[last] = (name, type) |
| 89 | last += 1 |
| 90 | else: |
| 91 | last += 1 |
| 92 | complete_ctype = Descriptor._GetCtype(fields_copy[:last]) |
| 93 | else: |
| 94 | complete_ctype = self.ctype |
| 95 | return complete_ctype.from_buffer(memory, offset) |
| 96 | |
| 97 | @staticmethod |
| 98 | def _GetCtype(fields): |
| 99 | class Raw(ctypes.Structure): |
| 100 | _fields_ = fields |
| 101 | _pack_ = 1 |
| 102 | |
| 103 | def __str__(self): |
| 104 | return "{" + ", ".join("%s: %s" % (field, self.__getattribute__(field)) |
| 105 | for field, _ in Raw._fields_) + "}" |
| 106 | return Raw |
| 107 | |
| 108 | |
| 109 | # Set of structures and constants that describe the layout of minidump |
| 110 | # files. Based on MSDN and Google Breakpad. |
| 111 | |
| 112 | MINIDUMP_HEADER = Descriptor([ |
| 113 | ("signature", ctypes.c_uint32), |
| 114 | ("version", ctypes.c_uint32), |
| 115 | ("stream_count", ctypes.c_uint32), |
| 116 | ("stream_directories_rva", ctypes.c_uint32), |
| 117 | ("checksum", ctypes.c_uint32), |
| 118 | ("time_date_stampt", ctypes.c_uint32), |
| 119 | ("flags", ctypes.c_uint64) |
| 120 | ]) |
| 121 | |
| 122 | MINIDUMP_LOCATION_DESCRIPTOR = Descriptor([ |
| 123 | ("data_size", ctypes.c_uint32), |
| 124 | ("rva", ctypes.c_uint32) |
| 125 | ]) |
| 126 | |
| 127 | MINIDUMP_DIRECTORY = Descriptor([ |
| 128 | ("stream_type", ctypes.c_uint32), |
| 129 | ("location", MINIDUMP_LOCATION_DESCRIPTOR.ctype) |
| 130 | ]) |
| 131 | |
| 132 | MD_EXCEPTION_MAXIMUM_PARAMETERS = 15 |
| 133 | |
| 134 | MINIDUMP_EXCEPTION = Descriptor([ |
| 135 | ("code", ctypes.c_uint32), |
| 136 | ("flags", ctypes.c_uint32), |
| 137 | ("record", ctypes.c_uint64), |
| 138 | ("address", ctypes.c_uint64), |
| 139 | ("parameter_count", ctypes.c_uint32), |
| 140 | ("unused_alignment", ctypes.c_uint32), |
| 141 | ("information", ctypes.c_uint64 * MD_EXCEPTION_MAXIMUM_PARAMETERS) |
| 142 | ]) |
| 143 | |
| 144 | MINIDUMP_EXCEPTION_STREAM = Descriptor([ |
| 145 | ("thread_id", ctypes.c_uint32), |
| 146 | ("unused_alignment", ctypes.c_uint32), |
| 147 | ("exception", MINIDUMP_EXCEPTION.ctype), |
| 148 | ("thread_context", MINIDUMP_LOCATION_DESCRIPTOR.ctype) |
| 149 | ]) |
| 150 | |
| 151 | # Stream types. |
| 152 | MD_UNUSED_STREAM = 0 |
| 153 | MD_RESERVED_STREAM_0 = 1 |
| 154 | MD_RESERVED_STREAM_1 = 2 |
| 155 | MD_THREAD_LIST_STREAM = 3 |
| 156 | MD_MODULE_LIST_STREAM = 4 |
| 157 | MD_MEMORY_LIST_STREAM = 5 |
| 158 | MD_EXCEPTION_STREAM = 6 |
| 159 | MD_SYSTEM_INFO_STREAM = 7 |
| 160 | MD_THREAD_EX_LIST_STREAM = 8 |
| 161 | MD_MEMORY_64_LIST_STREAM = 9 |
| 162 | MD_COMMENT_STREAM_A = 10 |
| 163 | MD_COMMENT_STREAM_W = 11 |
| 164 | MD_HANDLE_DATA_STREAM = 12 |
| 165 | MD_FUNCTION_TABLE_STREAM = 13 |
| 166 | MD_UNLOADED_MODULE_LIST_STREAM = 14 |
| 167 | MD_MISC_INFO_STREAM = 15 |
| 168 | MD_MEMORY_INFO_LIST_STREAM = 16 |
| 169 | MD_THREAD_INFO_LIST_STREAM = 17 |
| 170 | MD_HANDLE_OPERATION_LIST_STREAM = 18 |
| 171 | |
| 172 | MD_FLOATINGSAVEAREA_X86_REGISTERAREA_SIZE = 80 |
| 173 | |
| 174 | MINIDUMP_FLOATING_SAVE_AREA_X86 = Descriptor([ |
| 175 | ("control_word", ctypes.c_uint32), |
| 176 | ("status_word", ctypes.c_uint32), |
| 177 | ("tag_word", ctypes.c_uint32), |
| 178 | ("error_offset", ctypes.c_uint32), |
| 179 | ("error_selector", ctypes.c_uint32), |
| 180 | ("data_offset", ctypes.c_uint32), |
| 181 | ("data_selector", ctypes.c_uint32), |
| 182 | ("register_area", ctypes.c_uint8 * MD_FLOATINGSAVEAREA_X86_REGISTERAREA_SIZE), |
| 183 | ("cr0_npx_state", ctypes.c_uint32) |
| 184 | ]) |
| 185 | |
| 186 | MD_CONTEXT_X86_EXTENDED_REGISTERS_SIZE = 512 |
| 187 | |
| 188 | # Context flags. |
| 189 | MD_CONTEXT_X86 = 0x00010000 |
| 190 | MD_CONTEXT_X86_CONTROL = (MD_CONTEXT_X86 | 0x00000001) |
| 191 | MD_CONTEXT_X86_INTEGER = (MD_CONTEXT_X86 | 0x00000002) |
| 192 | MD_CONTEXT_X86_SEGMENTS = (MD_CONTEXT_X86 | 0x00000004) |
| 193 | MD_CONTEXT_X86_FLOATING_POINT = (MD_CONTEXT_X86 | 0x00000008) |
| 194 | MD_CONTEXT_X86_DEBUG_REGISTERS = (MD_CONTEXT_X86 | 0x00000010) |
| 195 | MD_CONTEXT_X86_EXTENDED_REGISTERS = (MD_CONTEXT_X86 | 0x00000020) |
| 196 | |
| 197 | def EnableOnFlag(type, flag): |
| 198 | return lambda o: [None, type][int((o.context_flags & flag) != 0)] |
| 199 | |
| 200 | MINIDUMP_CONTEXT_X86 = Descriptor([ |
| 201 | ("context_flags", ctypes.c_uint32), |
| 202 | # MD_CONTEXT_X86_DEBUG_REGISTERS. |
| 203 | ("dr0", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_DEBUG_REGISTERS)), |
| 204 | ("dr1", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_DEBUG_REGISTERS)), |
| 205 | ("dr2", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_DEBUG_REGISTERS)), |
| 206 | ("dr3", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_DEBUG_REGISTERS)), |
| 207 | ("dr6", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_DEBUG_REGISTERS)), |
| 208 | ("dr7", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_DEBUG_REGISTERS)), |
| 209 | # MD_CONTEXT_X86_FLOATING_POINT. |
| 210 | ("float_save", EnableOnFlag(MINIDUMP_FLOATING_SAVE_AREA_X86.ctype, |
| 211 | MD_CONTEXT_X86_FLOATING_POINT)), |
| 212 | # MD_CONTEXT_X86_SEGMENTS. |
| 213 | ("gs", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_SEGMENTS)), |
| 214 | ("fs", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_SEGMENTS)), |
| 215 | ("es", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_SEGMENTS)), |
| 216 | ("ds", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_SEGMENTS)), |
| 217 | # MD_CONTEXT_X86_INTEGER. |
| 218 | ("edi", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_INTEGER)), |
| 219 | ("esi", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_INTEGER)), |
| 220 | ("ebx", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_INTEGER)), |
| 221 | ("edx", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_INTEGER)), |
| 222 | ("ecx", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_INTEGER)), |
| 223 | ("eax", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_INTEGER)), |
| 224 | # MD_CONTEXT_X86_CONTROL. |
| 225 | ("ebp", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_CONTROL)), |
| 226 | ("eip", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_CONTROL)), |
| 227 | ("cs", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_CONTROL)), |
| 228 | ("eflags", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_CONTROL)), |
| 229 | ("esp", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_CONTROL)), |
| 230 | ("ss", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_X86_CONTROL)), |
| 231 | # MD_CONTEXT_X86_EXTENDED_REGISTERS. |
| 232 | ("extended_registers", |
| 233 | EnableOnFlag(ctypes.c_uint8 * MD_CONTEXT_X86_EXTENDED_REGISTERS_SIZE, |
| 234 | MD_CONTEXT_X86_EXTENDED_REGISTERS)) |
| 235 | ]) |
| 236 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 237 | MD_CONTEXT_AMD64 = 0x00100000 |
| 238 | MD_CONTEXT_AMD64_CONTROL = (MD_CONTEXT_AMD64 | 0x00000001) |
| 239 | MD_CONTEXT_AMD64_INTEGER = (MD_CONTEXT_AMD64 | 0x00000002) |
| 240 | MD_CONTEXT_AMD64_SEGMENTS = (MD_CONTEXT_AMD64 | 0x00000004) |
| 241 | MD_CONTEXT_AMD64_FLOATING_POINT = (MD_CONTEXT_AMD64 | 0x00000008) |
| 242 | MD_CONTEXT_AMD64_DEBUG_REGISTERS = (MD_CONTEXT_AMD64 | 0x00000010) |
| 243 | |
| 244 | MINIDUMP_CONTEXT_AMD64 = Descriptor([ |
| 245 | ("p1_home", ctypes.c_uint64), |
| 246 | ("p2_home", ctypes.c_uint64), |
| 247 | ("p3_home", ctypes.c_uint64), |
| 248 | ("p4_home", ctypes.c_uint64), |
| 249 | ("p5_home", ctypes.c_uint64), |
| 250 | ("p6_home", ctypes.c_uint64), |
| 251 | ("context_flags", ctypes.c_uint32), |
| 252 | ("mx_csr", ctypes.c_uint32), |
| 253 | # MD_CONTEXT_AMD64_CONTROL. |
| 254 | ("cs", EnableOnFlag(ctypes.c_uint16, MD_CONTEXT_AMD64_CONTROL)), |
| 255 | # MD_CONTEXT_AMD64_SEGMENTS |
| 256 | ("ds", EnableOnFlag(ctypes.c_uint16, MD_CONTEXT_AMD64_SEGMENTS)), |
| 257 | ("es", EnableOnFlag(ctypes.c_uint16, MD_CONTEXT_AMD64_SEGMENTS)), |
| 258 | ("fs", EnableOnFlag(ctypes.c_uint16, MD_CONTEXT_AMD64_SEGMENTS)), |
| 259 | ("gs", EnableOnFlag(ctypes.c_uint16, MD_CONTEXT_AMD64_SEGMENTS)), |
| 260 | # MD_CONTEXT_AMD64_CONTROL. |
| 261 | ("ss", EnableOnFlag(ctypes.c_uint16, MD_CONTEXT_AMD64_CONTROL)), |
| 262 | ("eflags", EnableOnFlag(ctypes.c_uint32, MD_CONTEXT_AMD64_CONTROL)), |
| 263 | # MD_CONTEXT_AMD64_DEBUG_REGISTERS. |
| 264 | ("dr0", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 265 | ("dr1", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 266 | ("dr2", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 267 | ("dr3", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 268 | ("dr6", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 269 | ("dr7", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 270 | # MD_CONTEXT_AMD64_INTEGER. |
| 271 | ("rax", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 272 | ("rcx", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 273 | ("rdx", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 274 | ("rbx", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 275 | # MD_CONTEXT_AMD64_CONTROL. |
| 276 | ("rsp", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_CONTROL)), |
| 277 | # MD_CONTEXT_AMD64_INTEGER. |
| 278 | ("rbp", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 279 | ("rsi", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 280 | ("rdi", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 281 | ("r8", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 282 | ("r9", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 283 | ("r10", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 284 | ("r11", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 285 | ("r12", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 286 | ("r13", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 287 | ("r14", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 288 | ("r15", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_INTEGER)), |
| 289 | # MD_CONTEXT_AMD64_CONTROL. |
| 290 | ("rip", EnableOnFlag(ctypes.c_uint64, MD_CONTEXT_AMD64_CONTROL)), |
| 291 | # MD_CONTEXT_AMD64_FLOATING_POINT |
| 292 | ("sse_registers", EnableOnFlag(ctypes.c_uint8 * (16 * 26), |
| 293 | MD_CONTEXT_AMD64_FLOATING_POINT)), |
| 294 | ("vector_registers", EnableOnFlag(ctypes.c_uint8 * (16 * 26), |
| 295 | MD_CONTEXT_AMD64_FLOATING_POINT)), |
| 296 | ("vector_control", EnableOnFlag(ctypes.c_uint64, |
| 297 | MD_CONTEXT_AMD64_FLOATING_POINT)), |
| 298 | # MD_CONTEXT_AMD64_DEBUG_REGISTERS. |
| 299 | ("debug_control", EnableOnFlag(ctypes.c_uint64, |
| 300 | MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 301 | ("last_branch_to_rip", EnableOnFlag(ctypes.c_uint64, |
| 302 | MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 303 | ("last_branch_from_rip", EnableOnFlag(ctypes.c_uint64, |
| 304 | MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 305 | ("last_exception_to_rip", EnableOnFlag(ctypes.c_uint64, |
| 306 | MD_CONTEXT_AMD64_DEBUG_REGISTERS)), |
| 307 | ("last_exception_from_rip", EnableOnFlag(ctypes.c_uint64, |
| 308 | MD_CONTEXT_AMD64_DEBUG_REGISTERS)) |
| 309 | ]) |
| 310 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 311 | MINIDUMP_MEMORY_DESCRIPTOR = Descriptor([ |
| 312 | ("start", ctypes.c_uint64), |
| 313 | ("memory", MINIDUMP_LOCATION_DESCRIPTOR.ctype) |
| 314 | ]) |
| 315 | |
| 316 | MINIDUMP_MEMORY_DESCRIPTOR64 = Descriptor([ |
| 317 | ("start", ctypes.c_uint64), |
| 318 | ("size", ctypes.c_uint64) |
| 319 | ]) |
| 320 | |
| 321 | MINIDUMP_MEMORY_LIST = Descriptor([ |
| 322 | ("range_count", ctypes.c_uint32), |
| 323 | ("ranges", lambda m: MINIDUMP_MEMORY_DESCRIPTOR.ctype * m.range_count) |
| 324 | ]) |
| 325 | |
| 326 | MINIDUMP_MEMORY_LIST64 = Descriptor([ |
| 327 | ("range_count", ctypes.c_uint64), |
| 328 | ("base_rva", ctypes.c_uint64), |
| 329 | ("ranges", lambda m: MINIDUMP_MEMORY_DESCRIPTOR64.ctype * m.range_count) |
| 330 | ]) |
| 331 | |
| 332 | MINIDUMP_THREAD = Descriptor([ |
| 333 | ("id", ctypes.c_uint32), |
| 334 | ("suspend_count", ctypes.c_uint32), |
| 335 | ("priority_class", ctypes.c_uint32), |
| 336 | ("priority", ctypes.c_uint32), |
| 337 | ("ted", ctypes.c_uint64), |
| 338 | ("stack", MINIDUMP_MEMORY_DESCRIPTOR.ctype), |
| 339 | ("context", MINIDUMP_LOCATION_DESCRIPTOR.ctype) |
| 340 | ]) |
| 341 | |
| 342 | MINIDUMP_THREAD_LIST = Descriptor([ |
| 343 | ("thread_count", ctypes.c_uint32), |
| 344 | ("threads", lambda t: MINIDUMP_THREAD.ctype * t.thread_count) |
| 345 | ]) |
| 346 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 347 | MINIDUMP_RAW_SYSTEM_INFO = Descriptor([ |
| 348 | ("processor_architecture", ctypes.c_uint16) |
| 349 | ]) |
| 350 | |
| 351 | MD_CPU_ARCHITECTURE_X86 = 0 |
| 352 | MD_CPU_ARCHITECTURE_AMD64 = 9 |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 353 | |
| 354 | class MinidumpReader(object): |
| 355 | """Minidump (.dmp) reader.""" |
| 356 | |
| 357 | _HEADER_MAGIC = 0x504d444d |
| 358 | |
| 359 | def __init__(self, options, minidump_name): |
| 360 | self.minidump_name = minidump_name |
| 361 | self.minidump_file = open(minidump_name, "r") |
| 362 | self.minidump = mmap.mmap(self.minidump_file.fileno(), 0, mmap.MAP_PRIVATE) |
| 363 | self.header = MINIDUMP_HEADER.Read(self.minidump, 0) |
| 364 | if self.header.signature != MinidumpReader._HEADER_MAGIC: |
| 365 | print >>sys.stderr, "Warning: unsupported minidump header magic" |
| 366 | DebugPrint(self.header) |
| 367 | directories = [] |
| 368 | offset = self.header.stream_directories_rva |
| 369 | for _ in xrange(self.header.stream_count): |
| 370 | directories.append(MINIDUMP_DIRECTORY.Read(self.minidump, offset)) |
| 371 | offset += MINIDUMP_DIRECTORY.size |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 372 | self.arch = None |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 373 | self.exception = None |
| 374 | self.exception_context = None |
| 375 | self.memory_list = None |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 376 | self.memory_list64 = None |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 377 | self.thread_map = {} |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 378 | |
| 379 | # Find MDRawSystemInfo stream and determine arch. |
| 380 | for d in directories: |
| 381 | if d.stream_type == MD_SYSTEM_INFO_STREAM: |
| 382 | system_info = MINIDUMP_RAW_SYSTEM_INFO.Read( |
| 383 | self.minidump, d.location.rva) |
| 384 | self.arch = system_info.processor_architecture |
| 385 | assert self.arch in [MD_CPU_ARCHITECTURE_AMD64, MD_CPU_ARCHITECTURE_X86] |
| 386 | assert not self.arch is None |
| 387 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 388 | for d in directories: |
| 389 | DebugPrint(d) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 390 | if d.stream_type == MD_EXCEPTION_STREAM: |
| 391 | self.exception = MINIDUMP_EXCEPTION_STREAM.Read( |
| 392 | self.minidump, d.location.rva) |
| 393 | DebugPrint(self.exception) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 394 | if self.arch == MD_CPU_ARCHITECTURE_X86: |
| 395 | self.exception_context = MINIDUMP_CONTEXT_X86.Read( |
| 396 | self.minidump, self.exception.thread_context.rva) |
| 397 | elif self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 398 | self.exception_context = MINIDUMP_CONTEXT_AMD64.Read( |
| 399 | self.minidump, self.exception.thread_context.rva) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 400 | DebugPrint(self.exception_context) |
| 401 | elif d.stream_type == MD_THREAD_LIST_STREAM: |
| 402 | thread_list = MINIDUMP_THREAD_LIST.Read(self.minidump, d.location.rva) |
| 403 | assert ctypes.sizeof(thread_list) == d.location.data_size |
| 404 | DebugPrint(thread_list) |
| 405 | for thread in thread_list.threads: |
| 406 | DebugPrint(thread) |
| 407 | self.thread_map[thread.id] = thread |
| 408 | elif d.stream_type == MD_MEMORY_LIST_STREAM: |
| 409 | print >>sys.stderr, "Warning: not a full minidump" |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 410 | assert self.memory_list is None |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 411 | self.memory_list = MINIDUMP_MEMORY_LIST.Read( |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 412 | self.minidump, d.location.rva) |
| 413 | assert ctypes.sizeof(self.memory_list) == d.location.data_size |
| 414 | DebugPrint(self.memory_list) |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 415 | elif d.stream_type == MD_MEMORY_64_LIST_STREAM: |
| 416 | assert self.memory_list64 is None |
| 417 | self.memory_list64 = MINIDUMP_MEMORY_LIST64.Read( |
| 418 | self.minidump, d.location.rva) |
| 419 | assert ctypes.sizeof(self.memory_list64) == d.location.data_size |
| 420 | DebugPrint(self.memory_list64) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 421 | |
| 422 | def IsValidAddress(self, address): |
| 423 | return self.FindLocation(address) is not None |
| 424 | |
| 425 | def ReadU8(self, address): |
| 426 | location = self.FindLocation(address) |
| 427 | return ctypes.c_uint8.from_buffer(self.minidump, location).value |
| 428 | |
| 429 | def ReadU32(self, address): |
| 430 | location = self.FindLocation(address) |
| 431 | return ctypes.c_uint32.from_buffer(self.minidump, location).value |
| 432 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 433 | def ReadU64(self, address): |
| 434 | location = self.FindLocation(address) |
| 435 | return ctypes.c_uint64.from_buffer(self.minidump, location).value |
| 436 | |
| 437 | def ReadUIntPtr(self, address): |
| 438 | if self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 439 | return self.ReadU64(address) |
| 440 | elif self.arch == MD_CPU_ARCHITECTURE_X86: |
| 441 | return self.ReadU32(address) |
| 442 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 443 | def ReadBytes(self, address, size): |
| 444 | location = self.FindLocation(address) |
| 445 | return self.minidump[location:location + size] |
| 446 | |
| 447 | def FindLocation(self, address): |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 448 | offset = 0 |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 449 | if self.memory_list64 is not None: |
| 450 | for r in self.memory_list64.ranges: |
| 451 | if r.start <= address < r.start + r.size: |
| 452 | return self.memory_list64.base_rva + offset + address - r.start |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 453 | offset += r.size |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 454 | if self.memory_list is not None: |
| 455 | for r in self.memory_list.ranges: |
| 456 | if r.start <= address < r.start + r.memory.data_size: |
| 457 | return r.memory.rva + address - r.start |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 458 | return None |
| 459 | |
| 460 | def GetDisasmLines(self, address, size): |
| 461 | location = self.FindLocation(address) |
| 462 | if location is None: return [] |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 463 | arch = None |
| 464 | if self.arch == MD_CPU_ARCHITECTURE_X86: |
| 465 | arch = "ia32" |
| 466 | elif self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 467 | arch = "x64" |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 468 | return disasm.GetDisasmLines(self.minidump_name, |
| 469 | location, |
| 470 | size, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 471 | arch, |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 472 | False) |
| 473 | |
| 474 | |
| 475 | def Dispose(self): |
| 476 | self.minidump.close() |
| 477 | self.minidump_file.close() |
| 478 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 479 | def ExceptionIP(self): |
| 480 | if self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 481 | return self.exception_context.rip |
| 482 | elif self.arch == MD_CPU_ARCHITECTURE_X86: |
| 483 | return self.exception_context.eip |
| 484 | |
| 485 | def ExceptionSP(self): |
| 486 | if self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 487 | return self.exception_context.rsp |
| 488 | elif self.arch == MD_CPU_ARCHITECTURE_X86: |
| 489 | return self.exception_context.esp |
| 490 | |
| 491 | def FormatIntPtr(self, value): |
| 492 | if self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 493 | return "%016x" % value |
| 494 | elif self.arch == MD_CPU_ARCHITECTURE_X86: |
| 495 | return "%08x" % value |
| 496 | |
| 497 | def PointerSize(self): |
| 498 | if self.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 499 | return 8 |
| 500 | elif self.arch == MD_CPU_ARCHITECTURE_X86: |
| 501 | return 4 |
| 502 | |
| 503 | def Register(self, name): |
| 504 | return self.exception_context.__getattribute__(name) |
| 505 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 506 | |
| 507 | # List of V8 instance types. Obtained by adding the code below to any .cc file. |
| 508 | # |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 509 | # #define DUMP_TYPE(T) printf(" %d: \"%s\",\n", T, #T); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 510 | # struct P { |
| 511 | # P() { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 512 | # printf("INSTANCE_TYPES = {\n"); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 513 | # INSTANCE_TYPE_LIST(DUMP_TYPE) |
| 514 | # printf("}\n"); |
| 515 | # } |
| 516 | # }; |
| 517 | # static P p; |
| 518 | INSTANCE_TYPES = { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 519 | 64: "SYMBOL_TYPE", |
| 520 | 68: "ASCII_SYMBOL_TYPE", |
| 521 | 65: "CONS_SYMBOL_TYPE", |
| 522 | 69: "CONS_ASCII_SYMBOL_TYPE", |
| 523 | 66: "EXTERNAL_SYMBOL_TYPE", |
| 524 | 74: "EXTERNAL_SYMBOL_WITH_ASCII_DATA_TYPE", |
| 525 | 70: "EXTERNAL_ASCII_SYMBOL_TYPE", |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 526 | 82: "SHORT_EXTERNAL_SYMBOL_TYPE", |
| 527 | 90: "SHORT_EXTERNAL_SYMBOL_WITH_ASCII_DATA_TYPE", |
| 528 | 86: "SHORT_EXTERNAL_ASCII_SYMBOL_TYPE", |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 529 | 0: "STRING_TYPE", |
| 530 | 4: "ASCII_STRING_TYPE", |
| 531 | 1: "CONS_STRING_TYPE", |
| 532 | 5: "CONS_ASCII_STRING_TYPE", |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 533 | 3: "SLICED_STRING_TYPE", |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 534 | 2: "EXTERNAL_STRING_TYPE", |
| 535 | 10: "EXTERNAL_STRING_WITH_ASCII_DATA_TYPE", |
| 536 | 6: "EXTERNAL_ASCII_STRING_TYPE", |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 537 | 18: "SHORT_EXTERNAL_STRING_TYPE", |
| 538 | 26: "SHORT_EXTERNAL_STRING_WITH_ASCII_DATA_TYPE", |
| 539 | 22: "SHORT_EXTERNAL_ASCII_STRING_TYPE", |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 540 | 6: "PRIVATE_EXTERNAL_ASCII_STRING_TYPE", |
| 541 | 128: "MAP_TYPE", |
| 542 | 129: "CODE_TYPE", |
| 543 | 130: "ODDBALL_TYPE", |
| 544 | 131: "JS_GLOBAL_PROPERTY_CELL_TYPE", |
| 545 | 132: "HEAP_NUMBER_TYPE", |
| 546 | 133: "FOREIGN_TYPE", |
| 547 | 134: "BYTE_ARRAY_TYPE", |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 548 | 135: "FREE_SPACE_TYPE", |
| 549 | 136: "EXTERNAL_BYTE_ARRAY_TYPE", |
| 550 | 137: "EXTERNAL_UNSIGNED_BYTE_ARRAY_TYPE", |
| 551 | 138: "EXTERNAL_SHORT_ARRAY_TYPE", |
| 552 | 139: "EXTERNAL_UNSIGNED_SHORT_ARRAY_TYPE", |
| 553 | 140: "EXTERNAL_INT_ARRAY_TYPE", |
| 554 | 141: "EXTERNAL_UNSIGNED_INT_ARRAY_TYPE", |
| 555 | 142: "EXTERNAL_FLOAT_ARRAY_TYPE", |
| 556 | 144: "EXTERNAL_PIXEL_ARRAY_TYPE", |
| 557 | 146: "FILLER_TYPE", |
| 558 | 147: "ACCESSOR_INFO_TYPE", |
| 559 | 148: "ACCESSOR_PAIR_TYPE", |
| 560 | 149: "ACCESS_CHECK_INFO_TYPE", |
| 561 | 150: "INTERCEPTOR_INFO_TYPE", |
| 562 | 151: "CALL_HANDLER_INFO_TYPE", |
| 563 | 152: "FUNCTION_TEMPLATE_INFO_TYPE", |
| 564 | 153: "OBJECT_TEMPLATE_INFO_TYPE", |
| 565 | 154: "SIGNATURE_INFO_TYPE", |
| 566 | 155: "TYPE_SWITCH_INFO_TYPE", |
| 567 | 156: "SCRIPT_TYPE", |
| 568 | 157: "CODE_CACHE_TYPE", |
| 569 | 158: "POLYMORPHIC_CODE_CACHE_TYPE", |
| 570 | 161: "FIXED_ARRAY_TYPE", |
| 571 | 145: "FIXED_DOUBLE_ARRAY_TYPE", |
| 572 | 162: "SHARED_FUNCTION_INFO_TYPE", |
| 573 | 163: "JS_MESSAGE_OBJECT_TYPE", |
| 574 | 166: "JS_VALUE_TYPE", |
| 575 | 167: "JS_OBJECT_TYPE", |
| 576 | 168: "JS_CONTEXT_EXTENSION_OBJECT_TYPE", |
| 577 | 169: "JS_GLOBAL_OBJECT_TYPE", |
| 578 | 170: "JS_BUILTINS_OBJECT_TYPE", |
| 579 | 171: "JS_GLOBAL_PROXY_TYPE", |
| 580 | 172: "JS_ARRAY_TYPE", |
| 581 | 165: "JS_PROXY_TYPE", |
| 582 | 175: "JS_WEAK_MAP_TYPE", |
| 583 | 176: "JS_REGEXP_TYPE", |
| 584 | 177: "JS_FUNCTION_TYPE", |
| 585 | 164: "JS_FUNCTION_PROXY_TYPE", |
| 586 | 159: "DEBUG_INFO_TYPE", |
| 587 | 160: "BREAK_POINT_INFO_TYPE", |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 588 | } |
| 589 | |
| 590 | |
| 591 | class Printer(object): |
| 592 | """Printer with indentation support.""" |
| 593 | |
| 594 | def __init__(self): |
| 595 | self.indent = 0 |
| 596 | |
| 597 | def Indent(self): |
| 598 | self.indent += 2 |
| 599 | |
| 600 | def Dedent(self): |
| 601 | self.indent -= 2 |
| 602 | |
| 603 | def Print(self, string): |
| 604 | print "%s%s" % (self._IndentString(), string) |
| 605 | |
| 606 | def PrintLines(self, lines): |
| 607 | indent = self._IndentString() |
| 608 | print "\n".join("%s%s" % (indent, line) for line in lines) |
| 609 | |
| 610 | def _IndentString(self): |
| 611 | return self.indent * " " |
| 612 | |
| 613 | |
| 614 | ADDRESS_RE = re.compile(r"0x[0-9a-fA-F]+") |
| 615 | |
| 616 | |
| 617 | def FormatDisasmLine(start, heap, line): |
| 618 | line_address = start + line[0] |
| 619 | stack_slot = heap.stack_map.get(line_address) |
| 620 | marker = " " |
| 621 | if stack_slot: |
| 622 | marker = "=>" |
| 623 | code = AnnotateAddresses(heap, line[1]) |
| 624 | return "%s%08x %08x: %s" % (marker, line_address, line[0], code) |
| 625 | |
| 626 | |
| 627 | def AnnotateAddresses(heap, line): |
| 628 | extra = [] |
| 629 | for m in ADDRESS_RE.finditer(line): |
| 630 | maybe_address = int(m.group(0), 16) |
| 631 | object = heap.FindObject(maybe_address) |
| 632 | if not object: continue |
| 633 | extra.append(str(object)) |
| 634 | if len(extra) == 0: return line |
| 635 | return "%s ;; %s" % (line, ", ".join(extra)) |
| 636 | |
| 637 | |
| 638 | class HeapObject(object): |
| 639 | def __init__(self, heap, map, address): |
| 640 | self.heap = heap |
| 641 | self.map = map |
| 642 | self.address = address |
| 643 | |
| 644 | def Is(self, cls): |
| 645 | return isinstance(self, cls) |
| 646 | |
| 647 | def Print(self, p): |
| 648 | p.Print(str(self)) |
| 649 | |
| 650 | def __str__(self): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 651 | return "HeapObject(%s, %s)" % (self.heap.reader.FormatIntPtr(self.address), |
| 652 | INSTANCE_TYPES[self.map.instance_type]) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 653 | |
| 654 | def ObjectField(self, offset): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 655 | field_value = self.heap.reader.ReadUIntPtr(self.address + offset) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 656 | return self.heap.FindObjectOrSmi(field_value) |
| 657 | |
| 658 | def SmiField(self, offset): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 659 | field_value = self.heap.reader.ReadUIntPtr(self.address + offset) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 660 | assert (field_value & 1) == 0 |
| 661 | return field_value / 2 |
| 662 | |
| 663 | |
| 664 | class Map(HeapObject): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 665 | def InstanceTypeOffset(self): |
| 666 | return self.heap.PointerSize() + self.heap.IntSize() |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 667 | |
| 668 | def __init__(self, heap, map, address): |
| 669 | HeapObject.__init__(self, heap, map, address) |
| 670 | self.instance_type = \ |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 671 | heap.reader.ReadU8(self.address + self.InstanceTypeOffset()) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 672 | |
| 673 | |
| 674 | class String(HeapObject): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 675 | def LengthOffset(self): |
| 676 | return self.heap.PointerSize() |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 677 | |
| 678 | def __init__(self, heap, map, address): |
| 679 | HeapObject.__init__(self, heap, map, address) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 680 | self.length = self.SmiField(self.LengthOffset()) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 681 | |
| 682 | def GetChars(self): |
| 683 | return "?string?" |
| 684 | |
| 685 | def Print(self, p): |
| 686 | p.Print(str(self)) |
| 687 | |
| 688 | def __str__(self): |
| 689 | return "\"%s\"" % self.GetChars() |
| 690 | |
| 691 | |
| 692 | class SeqString(String): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 693 | def CharsOffset(self): |
| 694 | return self.heap.PointerSize() * 3 |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 695 | |
| 696 | def __init__(self, heap, map, address): |
| 697 | String.__init__(self, heap, map, address) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 698 | self.chars = heap.reader.ReadBytes(self.address + self.CharsOffset(), |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 699 | self.length) |
| 700 | |
| 701 | def GetChars(self): |
| 702 | return self.chars |
| 703 | |
| 704 | |
| 705 | class ExternalString(String): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 706 | # TODO(vegorov) fix ExternalString for X64 architecture |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 707 | RESOURCE_OFFSET = 12 |
| 708 | |
| 709 | WEBKIT_RESOUCE_STRING_IMPL_OFFSET = 4 |
| 710 | WEBKIT_STRING_IMPL_CHARS_OFFSET = 8 |
| 711 | |
| 712 | def __init__(self, heap, map, address): |
| 713 | String.__init__(self, heap, map, address) |
| 714 | reader = heap.reader |
| 715 | self.resource = \ |
| 716 | reader.ReadU32(self.address + ExternalString.RESOURCE_OFFSET) |
| 717 | self.chars = "?external string?" |
| 718 | if not reader.IsValidAddress(self.resource): return |
| 719 | string_impl_address = self.resource + \ |
| 720 | ExternalString.WEBKIT_RESOUCE_STRING_IMPL_OFFSET |
| 721 | if not reader.IsValidAddress(string_impl_address): return |
| 722 | string_impl = reader.ReadU32(string_impl_address) |
| 723 | chars_ptr_address = string_impl + \ |
| 724 | ExternalString.WEBKIT_STRING_IMPL_CHARS_OFFSET |
| 725 | if not reader.IsValidAddress(chars_ptr_address): return |
| 726 | chars_ptr = reader.ReadU32(chars_ptr_address) |
| 727 | if not reader.IsValidAddress(chars_ptr): return |
| 728 | raw_chars = reader.ReadBytes(chars_ptr, 2 * self.length) |
| 729 | self.chars = codecs.getdecoder("utf16")(raw_chars)[0] |
| 730 | |
| 731 | def GetChars(self): |
| 732 | return self.chars |
| 733 | |
| 734 | |
| 735 | class ConsString(String): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 736 | def LeftOffset(self): |
| 737 | return self.heap.PointerSize() * 3 |
| 738 | |
| 739 | def RightOffset(self): |
| 740 | return self.heap.PointerSize() * 4 |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 741 | |
| 742 | def __init__(self, heap, map, address): |
| 743 | String.__init__(self, heap, map, address) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 744 | self.left = self.ObjectField(self.LeftOffset()) |
| 745 | self.right = self.ObjectField(self.RightOffset()) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 746 | |
| 747 | def GetChars(self): |
| 748 | return self.left.GetChars() + self.right.GetChars() |
| 749 | |
| 750 | |
| 751 | class Oddball(HeapObject): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 752 | def ToStringOffset(self): |
| 753 | return self.heap.PointerSize() |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 754 | |
| 755 | def __init__(self, heap, map, address): |
| 756 | HeapObject.__init__(self, heap, map, address) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 757 | self.to_string = self.ObjectField(self.ToStringOffset()) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 758 | |
| 759 | def Print(self, p): |
| 760 | p.Print(str(self)) |
| 761 | |
| 762 | def __str__(self): |
| 763 | return "<%s>" % self.to_string.GetChars() |
| 764 | |
| 765 | |
| 766 | class FixedArray(HeapObject): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 767 | def LengthOffset(self): |
| 768 | return self.heap.PointerSize() |
| 769 | |
| 770 | def ElementsOffset(self): |
| 771 | return self.heap.PointerSize() * 2 |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 772 | |
| 773 | def __init__(self, heap, map, address): |
| 774 | HeapObject.__init__(self, heap, map, address) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 775 | self.length = self.SmiField(self.LengthOffset()) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 776 | |
| 777 | def Print(self, p): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 778 | p.Print("FixedArray(%s) {" % self.heap.reader.FormatIntPtr(self.address)) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 779 | p.Indent() |
| 780 | p.Print("length: %d" % self.length) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 781 | base_offset = self.ElementsOffset() |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 782 | for i in xrange(self.length): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 783 | offset = base_offset + 4 * i |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 784 | p.Print("[%08d] = %s" % (i, self.ObjectField(offset))) |
| 785 | p.Dedent() |
| 786 | p.Print("}") |
| 787 | |
| 788 | def __str__(self): |
| 789 | return "FixedArray(%08x, length=%d)" % (self.address, self.length) |
| 790 | |
| 791 | |
| 792 | class JSFunction(HeapObject): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 793 | def CodeEntryOffset(self): |
| 794 | return 3 * self.heap.PointerSize() |
| 795 | |
| 796 | def SharedOffset(self): |
| 797 | return 5 * self.heap.PointerSize() |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 798 | |
| 799 | def __init__(self, heap, map, address): |
| 800 | HeapObject.__init__(self, heap, map, address) |
| 801 | code_entry = \ |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 802 | heap.reader.ReadU32(self.address + self.CodeEntryOffset()) |
| 803 | self.code = heap.FindObject(code_entry - Code.HeaderSize(heap) + 1) |
| 804 | self.shared = self.ObjectField(self.SharedOffset()) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 805 | |
| 806 | def Print(self, p): |
| 807 | source = "\n".join(" %s" % line for line in self._GetSource().split("\n")) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 808 | p.Print("JSFunction(%s) {" % self.heap.reader.FormatIntPtr(self.address)) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 809 | p.Indent() |
| 810 | p.Print("inferred name: %s" % self.shared.inferred_name) |
| 811 | if self.shared.script.Is(Script) and self.shared.script.name.Is(String): |
| 812 | p.Print("script name: %s" % self.shared.script.name) |
| 813 | p.Print("source:") |
| 814 | p.PrintLines(self._GetSource().split("\n")) |
| 815 | p.Print("code:") |
| 816 | self.code.Print(p) |
| 817 | if self.code != self.shared.code: |
| 818 | p.Print("unoptimized code:") |
| 819 | self.shared.code.Print(p) |
| 820 | p.Dedent() |
| 821 | p.Print("}") |
| 822 | |
| 823 | def __str__(self): |
| 824 | inferred_name = "" |
| 825 | if self.shared.Is(SharedFunctionInfo): |
| 826 | inferred_name = self.shared.inferred_name |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 827 | return "JSFunction(%s, %s)" % \ |
| 828 | (self.heap.reader.FormatIntPtr(self.address), inferred_name) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 829 | |
| 830 | def _GetSource(self): |
| 831 | source = "?source?" |
| 832 | start = self.shared.start_position |
| 833 | end = self.shared.end_position |
| 834 | if not self.shared.script.Is(Script): return source |
| 835 | script_source = self.shared.script.source |
| 836 | if not script_source.Is(String): return source |
| 837 | return script_source.GetChars()[start:end] |
| 838 | |
| 839 | |
| 840 | class SharedFunctionInfo(HeapObject): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 841 | def CodeOffset(self): |
| 842 | return 2 * self.heap.PointerSize() |
| 843 | |
| 844 | def ScriptOffset(self): |
| 845 | return 7 * self.heap.PointerSize() |
| 846 | |
| 847 | def InferredNameOffset(self): |
| 848 | return 9 * self.heap.PointerSize() |
| 849 | |
| 850 | def EndPositionOffset(self): |
| 851 | return 12 * self.heap.PointerSize() + 4 * self.heap.IntSize() |
| 852 | |
| 853 | def StartPositionAndTypeOffset(self): |
| 854 | return 12 * self.heap.PointerSize() + 5 * self.heap.IntSize() |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 855 | |
| 856 | def __init__(self, heap, map, address): |
| 857 | HeapObject.__init__(self, heap, map, address) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 858 | self.code = self.ObjectField(self.CodeOffset()) |
| 859 | self.script = self.ObjectField(self.ScriptOffset()) |
| 860 | self.inferred_name = self.ObjectField(self.InferredNameOffset()) |
| 861 | if heap.PointerSize() == 8: |
| 862 | start_position_and_type = \ |
| 863 | heap.reader.ReadU32(self.StartPositionAndTypeOffset()) |
| 864 | self.start_position = start_position_and_type >> 2 |
| 865 | pseudo_smi_end_position = \ |
| 866 | heap.reader.ReadU32(self.EndPositionOffset()) |
| 867 | self.end_position = pseudo_smi_end_position >> 2 |
| 868 | else: |
| 869 | start_position_and_type = \ |
| 870 | self.SmiField(self.StartPositionAndTypeOffset()) |
| 871 | self.start_position = start_position_and_type >> 2 |
| 872 | self.end_position = \ |
| 873 | self.SmiField(self.EndPositionOffset()) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 874 | |
| 875 | |
| 876 | class Script(HeapObject): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 877 | def SourceOffset(self): |
| 878 | return self.heap.PointerSize() |
| 879 | |
| 880 | def NameOffset(self): |
| 881 | return self.SourceOffset() + self.heap.PointerSize() |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 882 | |
| 883 | def __init__(self, heap, map, address): |
| 884 | HeapObject.__init__(self, heap, map, address) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 885 | self.source = self.ObjectField(self.SourceOffset()) |
| 886 | self.name = self.ObjectField(self.NameOffset()) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 887 | |
| 888 | |
| 889 | class Code(HeapObject): |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 890 | CODE_ALIGNMENT_MASK = (1 << 5) - 1 |
| 891 | |
| 892 | def InstructionSizeOffset(self): |
| 893 | return self.heap.PointerSize() |
| 894 | |
| 895 | @staticmethod |
| 896 | def HeaderSize(heap): |
| 897 | return (heap.PointerSize() + heap.IntSize() + \ |
| 898 | 4 * heap.PointerSize() + 3 * heap.IntSize() + \ |
| 899 | Code.CODE_ALIGNMENT_MASK) & ~Code.CODE_ALIGNMENT_MASK |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 900 | |
| 901 | def __init__(self, heap, map, address): |
| 902 | HeapObject.__init__(self, heap, map, address) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 903 | self.entry = self.address + Code.HeaderSize(heap) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 904 | self.instruction_size = \ |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 905 | heap.reader.ReadU32(self.address + self.InstructionSizeOffset()) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 906 | |
| 907 | def Print(self, p): |
| 908 | lines = self.heap.reader.GetDisasmLines(self.entry, self.instruction_size) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 909 | p.Print("Code(%s) {" % self.heap.reader.FormatIntPtr(self.address)) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 910 | p.Indent() |
| 911 | p.Print("instruction_size: %d" % self.instruction_size) |
| 912 | p.PrintLines(self._FormatLine(line) for line in lines) |
| 913 | p.Dedent() |
| 914 | p.Print("}") |
| 915 | |
| 916 | def _FormatLine(self, line): |
| 917 | return FormatDisasmLine(self.entry, self.heap, line) |
| 918 | |
| 919 | |
| 920 | class V8Heap(object): |
| 921 | CLASS_MAP = { |
| 922 | "SYMBOL_TYPE": SeqString, |
| 923 | "ASCII_SYMBOL_TYPE": SeqString, |
| 924 | "CONS_SYMBOL_TYPE": ConsString, |
| 925 | "CONS_ASCII_SYMBOL_TYPE": ConsString, |
| 926 | "EXTERNAL_SYMBOL_TYPE": ExternalString, |
| 927 | "EXTERNAL_SYMBOL_WITH_ASCII_DATA_TYPE": ExternalString, |
| 928 | "EXTERNAL_ASCII_SYMBOL_TYPE": ExternalString, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 929 | "SHORT_EXTERNAL_SYMBOL_TYPE": ExternalString, |
| 930 | "SHORT_EXTERNAL_SYMBOL_WITH_ASCII_DATA_TYPE": ExternalString, |
| 931 | "SHORT_EXTERNAL_ASCII_SYMBOL_TYPE": ExternalString, |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 932 | "STRING_TYPE": SeqString, |
| 933 | "ASCII_STRING_TYPE": SeqString, |
| 934 | "CONS_STRING_TYPE": ConsString, |
| 935 | "CONS_ASCII_STRING_TYPE": ConsString, |
| 936 | "EXTERNAL_STRING_TYPE": ExternalString, |
| 937 | "EXTERNAL_STRING_WITH_ASCII_DATA_TYPE": ExternalString, |
| 938 | "EXTERNAL_ASCII_STRING_TYPE": ExternalString, |
| 939 | |
| 940 | "MAP_TYPE": Map, |
| 941 | "ODDBALL_TYPE": Oddball, |
| 942 | "FIXED_ARRAY_TYPE": FixedArray, |
| 943 | "JS_FUNCTION_TYPE": JSFunction, |
| 944 | "SHARED_FUNCTION_INFO_TYPE": SharedFunctionInfo, |
| 945 | "SCRIPT_TYPE": Script, |
| 946 | "CODE_TYPE": Code |
| 947 | } |
| 948 | |
| 949 | def __init__(self, reader, stack_map): |
| 950 | self.reader = reader |
| 951 | self.stack_map = stack_map |
| 952 | self.objects = {} |
| 953 | |
| 954 | def FindObjectOrSmi(self, tagged_address): |
| 955 | if (tagged_address & 1) == 0: return tagged_address / 2 |
| 956 | return self.FindObject(tagged_address) |
| 957 | |
| 958 | def FindObject(self, tagged_address): |
| 959 | if tagged_address in self.objects: |
| 960 | return self.objects[tagged_address] |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 961 | if (tagged_address & self.ObjectAlignmentMask()) != 1: return None |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 962 | address = tagged_address - 1 |
| 963 | if not self.reader.IsValidAddress(address): return None |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 964 | map_tagged_address = self.reader.ReadUIntPtr(address) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 965 | if tagged_address == map_tagged_address: |
| 966 | # Meta map? |
| 967 | meta_map = Map(self, None, address) |
| 968 | instance_type_name = INSTANCE_TYPES.get(meta_map.instance_type) |
| 969 | if instance_type_name != "MAP_TYPE": return None |
| 970 | meta_map.map = meta_map |
| 971 | object = meta_map |
| 972 | else: |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 973 | map = self.FindMap(map_tagged_address) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 974 | if map is None: return None |
| 975 | instance_type_name = INSTANCE_TYPES.get(map.instance_type) |
| 976 | if instance_type_name is None: return None |
| 977 | cls = V8Heap.CLASS_MAP.get(instance_type_name, HeapObject) |
| 978 | object = cls(self, map, address) |
| 979 | self.objects[tagged_address] = object |
| 980 | return object |
| 981 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 982 | def FindMap(self, tagged_address): |
| 983 | if (tagged_address & self.MapAlignmentMask()) != 1: return None |
| 984 | address = tagged_address - 1 |
| 985 | if not self.reader.IsValidAddress(address): return None |
| 986 | object = Map(self, None, address) |
| 987 | return object |
| 988 | |
| 989 | def IntSize(self): |
| 990 | return 4 |
| 991 | |
| 992 | def PointerSize(self): |
| 993 | return self.reader.PointerSize() |
| 994 | |
| 995 | def ObjectAlignmentMask(self): |
| 996 | return self.PointerSize() - 1 |
| 997 | |
| 998 | def MapAlignmentMask(self): |
| 999 | if self.reader.arch == MD_CPU_ARCHITECTURE_AMD64: |
| 1000 | return (1 << 4) - 1 |
| 1001 | elif self.reader.arch == MD_CPU_ARCHITECTURE_X86: |
| 1002 | return (1 << 5) - 1 |
| 1003 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1004 | |
| 1005 | EIP_PROXIMITY = 64 |
| 1006 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1007 | CONTEXT_FOR_ARCH = { |
| 1008 | MD_CPU_ARCHITECTURE_AMD64: |
| 1009 | ['rax', 'rbx', 'rcx', 'rdx', 'rdi', 'rsi', 'rbp', 'rsp', 'rip'], |
| 1010 | MD_CPU_ARCHITECTURE_X86: |
| 1011 | ['eax', 'ebx', 'ecx', 'edx', 'edi', 'esi', 'ebp', 'esp', 'eip'] |
| 1012 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1013 | |
| 1014 | def AnalyzeMinidump(options, minidump_name): |
| 1015 | reader = MinidumpReader(options, minidump_name) |
| 1016 | DebugPrint("========================================") |
| 1017 | if reader.exception is None: |
| 1018 | print "Minidump has no exception info" |
| 1019 | return |
| 1020 | print "Exception info:" |
| 1021 | exception_thread = reader.thread_map[reader.exception.thread_id] |
| 1022 | print " thread id: %d" % exception_thread.id |
| 1023 | print " code: %08X" % reader.exception.exception.code |
| 1024 | print " context:" |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1025 | for r in CONTEXT_FOR_ARCH[reader.arch]: |
| 1026 | print " %s: %s" % (r, reader.FormatIntPtr(reader.Register(r))) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1027 | # TODO(vitalyr): decode eflags. |
| 1028 | print " eflags: %s" % bin(reader.exception_context.eflags)[2:] |
| 1029 | print |
| 1030 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1031 | stack_top = reader.ExceptionSP() |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1032 | stack_bottom = exception_thread.stack.start + \ |
| 1033 | exception_thread.stack.memory.data_size |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1034 | stack_map = {reader.ExceptionIP(): -1} |
| 1035 | for slot in xrange(stack_top, stack_bottom, reader.PointerSize()): |
| 1036 | maybe_address = reader.ReadUIntPtr(slot) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1037 | if not maybe_address in stack_map: |
| 1038 | stack_map[maybe_address] = slot |
| 1039 | heap = V8Heap(reader, stack_map) |
| 1040 | |
| 1041 | print "Disassembly around exception.eip:" |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1042 | start = reader.ExceptionIP() - EIP_PROXIMITY |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1043 | lines = reader.GetDisasmLines(start, 2 * EIP_PROXIMITY) |
| 1044 | for line in lines: |
| 1045 | print FormatDisasmLine(start, heap, line) |
| 1046 | print |
| 1047 | |
| 1048 | print "Annotated stack (from exception.esp to bottom):" |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1049 | for slot in xrange(stack_top, stack_bottom, reader.PointerSize()): |
| 1050 | maybe_address = reader.ReadUIntPtr(slot) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1051 | heap_object = heap.FindObject(maybe_address) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1052 | print "%s: %s" % (reader.FormatIntPtr(slot), |
| 1053 | reader.FormatIntPtr(maybe_address)) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1054 | if heap_object: |
| 1055 | heap_object.Print(Printer()) |
| 1056 | print |
| 1057 | |
| 1058 | reader.Dispose() |
| 1059 | |
| 1060 | |
| 1061 | if __name__ == "__main__": |
| 1062 | parser = optparse.OptionParser(USAGE) |
| 1063 | options, args = parser.parse_args() |
| 1064 | if len(args) != 1: |
| 1065 | parser.print_help() |
| 1066 | sys.exit(1) |
| 1067 | AnalyzeMinidump(options, args[0]) |