Grokdump: new shell command, "lm"
lm - list matching modules and details such as product version number found in the minidump. Also, enabled a mode to execute one command and exit. BUG= R=mstarzinger@chromium.org Review URL: https://codereview.chromium.org/18310003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15410 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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mvstanton@chromium.org
parent
6a19aca501
commit
d594fd5de3
@ -31,6 +31,7 @@ import bisect
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import cmd
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import codecs
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import ctypes
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import datetime
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import disasm
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import mmap
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import optparse
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@ -40,7 +41,6 @@ import struct
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import sys
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import types
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USAGE="""usage: %prog [OPTIONS] [DUMP-FILE]
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Minidump analyzer.
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@ -442,13 +442,29 @@ MINIDUMP_THREAD_LIST = Descriptor([
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("threads", lambda t: MINIDUMP_THREAD.ctype * t.thread_count)
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])
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MINIDUMP_VS_FIXEDFILEINFO = Descriptor([
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("dwSignature", ctypes.c_uint32),
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("dwStrucVersion", ctypes.c_uint32),
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("dwFileVersionMS", ctypes.c_uint32),
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("dwFileVersionLS", ctypes.c_uint32),
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("dwProductVersionMS", ctypes.c_uint32),
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("dwProductVersionLS", ctypes.c_uint32),
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("dwFileFlagsMask", ctypes.c_uint32),
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("dwFileFlags", ctypes.c_uint32),
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("dwFileOS", ctypes.c_uint32),
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("dwFileType", ctypes.c_uint32),
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("dwFileSubtype", ctypes.c_uint32),
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("dwFileDateMS", ctypes.c_uint32),
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("dwFileDateLS", ctypes.c_uint32)
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])
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MINIDUMP_RAW_MODULE = Descriptor([
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("base_of_image", ctypes.c_uint64),
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("size_of_image", ctypes.c_uint32),
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("checksum", ctypes.c_uint32),
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("time_date_stamp", ctypes.c_uint32),
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("module_name_rva", ctypes.c_uint32),
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("version_info", ctypes.c_uint32 * 13),
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("version_info", MINIDUMP_VS_FIXEDFILEINFO.ctype),
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("cv_record", MINIDUMP_LOCATION_DESCRIPTOR.ctype),
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("misc_record", MINIDUMP_LOCATION_DESCRIPTOR.ctype),
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("reserved0", ctypes.c_uint32 * 2),
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@ -785,8 +801,9 @@ class MinidumpReader(object):
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try:
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symfile = os.path.join(self.symdir,
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modulename.replace('.', '_') + ".pdb.sym")
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self._LoadSymbolsFrom(symfile, module.base_of_image)
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self.modules_with_symbols.append(module)
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if os.path.isfile(symfile):
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self._LoadSymbolsFrom(symfile, module.base_of_image)
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self.modules_with_symbols.append(module)
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except Exception as e:
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print " ... failure (%s)" % (e)
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@ -2011,6 +2028,21 @@ class InspectionShell(cmd.Cmd):
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print "Available memory regions:"
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self.reader.ForEachMemoryRegion(print_region)
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def do_lm(self, arg):
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"""
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List details for all loaded modules in the minidump. An argument can
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be passed to limit the output to only those modules that contain the
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argument as a substring (case insensitive match).
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"""
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for module in self.reader.module_list.modules:
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if arg:
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name = GetModuleName(self.reader, module).lower()
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if name.find(arg.lower()) >= 0:
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PrintModuleDetails(self.reader, module)
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else:
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PrintModuleDetails(self.reader, module)
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print
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def do_s(self, word):
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"""
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Search for a given word in available memory regions. The given word
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@ -2069,10 +2101,32 @@ CONTEXT_FOR_ARCH = {
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KNOWN_MODULES = {'chrome.exe', 'chrome.dll'}
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def GetVersionString(ms, ls):
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return "%d.%d.%d.%d" % (ms >> 16, ms & 0xffff, ls >> 16, ls & 0xffff)
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def GetModuleName(reader, module):
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name = reader.ReadMinidumpString(module.module_name_rva)
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# simplify for path manipulation
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name = name.encode('utf-8')
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return str(os.path.basename(str(name).replace("\\", "/")))
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def PrintModuleDetails(reader, module):
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print "%s" % GetModuleName(reader, module)
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file_version = GetVersionString(module.version_info.dwFileVersionMS,
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module.version_info.dwFileVersionLS)
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product_version = GetVersionString(module.version_info.dwProductVersionMS,
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module.version_info.dwProductVersionLS)
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print " base: %s" % reader.FormatIntPtr(module.base_of_image)
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print " end: %s" % reader.FormatIntPtr(module.base_of_image +
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module.size_of_image)
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print " file version: %s" % file_version
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print " product version: %s" % product_version
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time_date_stamp = datetime.datetime.fromtimestamp(module.time_date_stamp)
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print " timestamp: %s" % time_date_stamp
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def AnalyzeMinidump(options, minidump_name):
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reader = MinidumpReader(options, minidump_name)
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heap = None
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@ -2093,14 +2147,13 @@ def AnalyzeMinidump(options, minidump_name):
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else:
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print " eflags: %s" % bin(reader.exception_context.eflags)[2:]
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# TODO(mstarzinger): Disabled because broken, needs investigation.
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#print
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#print " modules:"
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#for module in reader.module_list.modules:
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# name = GetModuleName(reader, module)
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# if name in KNOWN_MODULES:
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# print " %s at %08X" % (name, module.base_of_image)
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# reader.TryLoadSymbolsFor(name, module)
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print
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print " modules:"
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for module in reader.module_list.modules:
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name = GetModuleName(reader, module)
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if name in KNOWN_MODULES:
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print " %s at %08X" % (name, module.base_of_image)
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reader.TryLoadSymbolsFor(name, module)
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print
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stack_top = reader.ExceptionSP()
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@ -2137,12 +2190,15 @@ def AnalyzeMinidump(options, minidump_name):
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if options.full:
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FullDump(reader, heap)
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if options.command:
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InspectionShell(reader, heap).onecmd(options.command)
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if options.shell:
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try:
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InspectionShell(reader, heap).cmdloop("type help to get help")
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except KeyboardInterrupt:
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print "Kthxbye."
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else:
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elif not options.command:
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if reader.exception is not None:
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print "Annotated stack (from exception.esp to bottom):"
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for slot in xrange(stack_top, stack_bottom, reader.PointerSize()):
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@ -2163,6 +2219,8 @@ if __name__ == "__main__":
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parser = optparse.OptionParser(USAGE)
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parser.add_option("-s", "--shell", dest="shell", action="store_true",
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help="start an interactive inspector shell")
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parser.add_option("-c", "--command", dest="command", default="",
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help="run an interactive inspector shell command and exit")
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parser.add_option("-f", "--full", dest="full", action="store_true",
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help="dump all information contained in the minidump")
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parser.add_option("--symdir", dest="symdir", default=".",
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