forked from qt-creator/qt-creator
619 lines
20 KiB
Python
619 lines
20 KiB
Python
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#Note: Keep name-type-value-numchild-extra order
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#return
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import sys
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import traceback
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import gdb
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#import base64
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import types
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import curses.ascii
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verbosity = 0
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verbosity = 1
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def select(condition, if_expr, else_expr):
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if condition:
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return if_expr
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return else_expr
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def qmin(n, m):
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if n < m:
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return n
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return m
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def isSimpleType(typeobj):
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type = str(typeobj)
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return type == "bool" \
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or type == "char" \
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or type == "double" \
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or type == "float" \
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or type == "int" \
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or type == "long" or type.startswith("long ") \
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or type == "short" or type.startswith("short ") \
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or type == "signed" or type.startswith("signed ") \
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or type == "unsigned" or type.startswith("unsigned ")
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def isStringType(d, typeobj):
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type = str(typeobj)
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return type == d.ns + "QString" \
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or type == d.ns + "QByteArray" \
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or type == "std::string" \
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or type == "std::wstring" \
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or type == "wstring"
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def warn(message):
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if verbosity > 0:
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print "XXX: %s " % message.encode("latin1")
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pass
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def check(exp):
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if not exp:
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raise RuntimeError("Check failed")
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#def couldBePointer(p, align):
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# type = gdb.lookup_type("unsigned int")
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# ptr = gdb.Value(p).cast(type)
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# d = int(str(ptr))
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# warn("CHECKING : %s %d " % (p, ((d & 3) == 0 and (d > 1000 or d == 0))))
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# return (d & (align - 1)) and (d > 1000 or d == 0)
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def checkAccess(p, align = 1):
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return p.dereference()
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def checkContents(p, expected, align = 1):
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if int(p.dereference()) != expected:
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raise RuntimeError("Contents check failed")
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def checkPointer(p, align = 1):
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if not isNull(p):
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p.dereference()
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def isNull(p):
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s = str(p)
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return s == "0x0" or s.startswith("0x0 ")
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movableTypes = set([
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"QBrush", "QBitArray", "QByteArray",
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"QCustomTypeInfo", "QChar",
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"QDate", "QDateTime",
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"QFileInfo", "QFixed", "QFixedPoint", "QFixedSize",
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"QHashDummyValue",
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"QIcon", "QImage",
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"QLine", "QLineF", "QLatin1Char", "QLocal",
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"QMatrix", "QModelIndex",
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"QPoint", "QPointF", "QPen", "QPersistentModelIndex",
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"QResourceRoot", "QRect", "QRectF", "QRegExp",
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"QSize", "QSizeF", "QString",
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"QTime", "QTextBlock",
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"QUrl",
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"QVariant",
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"QXmlStreamAttribute", "QXmlStreamNamespaceDeclaration",
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"QXmlStreamNotationDeclaration", "QXmlStreamEntityDeclaration"])
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def stripClassTag(type):
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if type.startswith("class "):
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return type[6:]
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return type
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def checkPointerRange(p, n):
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for i in xrange(0, n):
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checkPointer(p)
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++p
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def call(value, func):
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#warn("CALL: %s -> %s" % (value, func))
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type = stripClassTag(str(value.type))
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if type.find(':') >= 0:
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type = "'" + type + "'"
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exp = "((%s*)%s)->%s" % (type, value.address, func)
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#warn("CALL: %s" % exp)
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result = gdb.parse_and_eval(exp)
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#warn(" -> %s" % result)
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return result
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#######################################################################
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#
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# Item
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#
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#######################################################################
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class Item:
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def __init__(self, value, parentiname, iname, name):
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self.value = value
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if iname is None:
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self.iname = parentiname
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else:
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self.iname = "%s.%s" % (parentiname, iname)
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self.name = name
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#######################################################################
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#
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# FrameCommand
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#
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#######################################################################
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class FrameCommand(gdb.Command):
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"""Do fancy stuff. Usage bb --verbose expandedINames"""
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def __init__(self):
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super(FrameCommand, self).__init__("bb", gdb.COMMAND_OBSCURE)
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def invoke(self, arg, from_tty):
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print('locals={iname="local",name="Locals",value=" ",type=" ",'
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+ 'children=[%s]}' % self.doit(arg).encode("latin1"))
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def doit(self, arg):
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args = arg.split(' ')
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#warn("ARG: %s" % arg)
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#warn("ARGS: %s" % args)
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useFancy = int(args[0])
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passExceptions = int(args[1])
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expandedINames = set()
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if len(args) > 2:
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expandedINames = set(args[2].split(','))
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watchers = set()
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if len(args) > 3:
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watchers = set(args[3].split(','))
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#warn("EXPANDED INAMES: %s" % expandedINames)
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#warn("WATCHERS: %s" % watchers)
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module = sys.modules[__name__]
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self.dumpers = {}
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if useFancy:
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for key, value in module.__dict__.items():
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#if callable(value):
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if key.startswith("qqDump"):
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self.dumpers[key[6:]] = value
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self.dumpers["std__deque"] = qqDumpStdDeque
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self.dumpers["std__list"] = qqDumpStdList
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self.dumpers["std__map"] = qqDumpStdMap
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self.dumpers["std__set"] = qqDumpStdSet
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self.dumpers["std__vector"] = qqDumpStdVector
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self.dumpers["string"] = qqDumpStdString
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self.dumpers["std__string"] = qqDumpStdString
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self.dumpers["std__wstring"] = qqDumpStdString
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self.dumpers["std__basic_string"] = qqDumpStdString
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self.dumpers["wstring"] = qqDumpStdString
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# Hack to work around gdb bug #10898
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#self.dumpers["QString::string"] = qqDumpStdString
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#warn("DUMPERS: %s " % self.dumpers)
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try:
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frame = gdb.selected_frame()
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except RuntimeError:
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return ""
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d = Dumper()
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d.dumpers = self.dumpers
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d.passExceptions = passExceptions
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block = frame.block()
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# initialize namespace
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type = str(gdb.parse_and_eval("&QString::null").type.target().unqualified())
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d.ns = type[0:len(type) - len("QString::Null")]
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#warn(" NAMESPACE IS: '%s'" % d.ns)
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#warn("FRAME %s: " % frame)
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while True:
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if block is None:
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warn("UNEXPECTED 'None' BLOCK")
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break
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for symbol in block:
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name = symbol.print_name
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if name == "__in_chrg":
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continue
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# "NotImplementedError: Symbol type not yet supported in
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# Python scripts."
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#warn("SYMBOL %s: " % symbol.value)
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#warn("SYMBOL %s (%s): " % (symbol, name))
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item = Item(0, "local", name, name)
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try:
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item.value = frame.read_var(name) # this is a gdb value
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except RuntimeError:
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# happens for void foo() { std::string s; std::wstring w; }
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#warn(" FRAME READ VAR ERROR: %s (%s): " % (symbol, name))
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continue
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#warn("ITEM %s: " % item.value)
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d.expandedINames = expandedINames
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d.useFancy = useFancy
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d.beginHash()
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d.putField("iname", item.iname)
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d.put(",")
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d.safePutItemHelper(item)
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d.endHash()
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# The outermost block in a function has the function member
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# FIXME: check whether this is guaranteed.
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if not block.function is None:
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break
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block = block.superblock
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d.pushOutput()
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return d.safeoutput
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FrameCommand()
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#######################################################################
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#
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# The Dumper Class
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#
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#######################################################################
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class Dumper:
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def __init__(self):
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self.output = ""
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self.safeoutput = ""
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self.childTypes = [""]
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self.childNumChilds = [-1]
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def put(self, value):
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self.output += value
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def putCommaIfNeeded(self):
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c = self.output[-1:]
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if c == '}' or c == '"' or c == ']' or c == '\n':
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self.put(',')
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#warn("C:'%s' COND:'%d' OUT:'%s'" %
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# (c, c == '}' or c == '"' or c == ']' or c == '\n', self.output))
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def putField(self, name, value):
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self.putCommaIfNeeded()
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self.put('%s="%s"' % (name, value))
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def beginHash(self):
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self.putCommaIfNeeded()
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self.put('{')
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def endHash(self):
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self.put('}')
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def beginItem(self, name):
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self.putCommaIfNeeded()
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self.put(name)
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self.put('="')
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def endItem(self):
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self.put('"')
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def beginChildren(self, numChild = 1, type = None, children = None):
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childType = ""
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childNumChild = -1
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if numChild == 0:
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type = None
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if not type is None:
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childType = stripClassTag(str(type))
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self.putField("childtype", childType)
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if isSimpleType(type) or isStringType(self, type):
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self.putField("childnumchild", "0")
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childNumChild = 0
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elif type.code == gdb.TYPE_CODE_PTR:
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self.putField("childnumchild", "1")
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childNumChild = 1
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if not children is None:
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self.putField("childnumchild", children)
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childNumChild = children
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self.childTypes.append(childType)
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self.childNumChilds.append(childNumChild)
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#warn("BEGIN: %s" % self.childTypes)
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self.putCommaIfNeeded()
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self.put("children=[")
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def endChildren(self):
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#warn("END: %s" % self.childTypes)
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self.childTypes.pop()
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self.childNumChilds.pop()
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self.put(']')
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# convenience
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def putItemCount(self, count):
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self.putCommaIfNeeded()
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self.put('value="<%s items>"' % count)
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def putEllipsis(self):
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self.putCommaIfNeeded()
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self.put('{name="<incomplete>",value="",type="",numchild="0"}')
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def putType(self, type):
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#warn("TYPES: '%s' '%s'" % (type, self.childTypes))
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#warn(" EQUAL 2: %s " % (str(type) == self.childTypes[-1]))
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type = stripClassTag(str(type))
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if len(type) > 0 and type != self.childTypes[-1]:
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self.putField("type", type)
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#self.putField("type", str(type.unqualified()))
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def putNumChild(self, numchild):
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#warn("NUM CHILD: '%s' '%s'" % (numchild, self.childNumChilds[-1]))
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if int(numchild) != int(self.childNumChilds[-1]):
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self.putField("numchild", numchild)
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def isExpanded(self, item):
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#warn("IS EXPANDED: %s in %s" % (item.iname, self.expandedINames))
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if item.iname is None:
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raise "Illegal iname 'None'"
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if item.iname.startswith("None"):
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raise "Illegal iname '%s'" % item.iname
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#warn(" --> %s" % (item.iname in self.expandedINames))
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return item.iname in self.expandedINames
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def isExpandedIName(self, iname):
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return iname in self.expandedINames
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def unputField(self, name):
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pos = self.output.rfind(",")
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if self.output[pos + 1:].startswith(name):
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self.output = self.output[0:pos]
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def stripNamespaceFromType(self, typeobj):
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# FIXME: pass ns from plugin
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type = stripClassTag(str(typeobj))
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if len(self.ns) > 0 and type.startswith(self.ns):
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type = type[len(self.ns):]
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pos = type.find("<")
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if pos != -1:
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type = type[0:pos]
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return type
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def isMovableType(self, type):
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if type.code == gdb.TYPE_CODE_PTR:
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return True
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if isSimpleType(type):
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return True
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return self.stripNamespaceFromType(type) in movableTypes
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def putIntItem(self, name, value):
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self.beginHash()
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self.putField("name", name)
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self.putField("value", value)
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self.putType("int")
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self.putNumChild(0)
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self.endHash()
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def putBoolItem(self, name, value):
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self.beginHash()
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self.putField("name", name)
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self.putField("value", value)
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self.putType("bool")
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self.putNumChild(0)
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self.endHash()
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def pushOutput(self):
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#warn("PUSH OUTPUT: %s " % self.output)
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self.safeoutput += self.output
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self.output = ""
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def dumpInnerValueHelper(self, item, field = "value"):
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if isSimpleType(item.value.type):
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self.putItemHelper(item, field)
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def safePutItemHelper(self, item):
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self.pushOutput()
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# This is only used at the top level to ensure continuation
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# after failures due to uninitialized or corrupted data.
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if self.passExceptions:
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# for debugging reasons propagate errors.
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self.putItemHelper(item)
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else:
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try:
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self.putItemHelper(item)
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except RuntimeError:
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self.output = ""
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# FIXME: Only catch debugger related exceptions
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#exType, exValue, exTraceback = sys.exc_info()
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#tb = traceback.format_exception(exType, exValue, exTraceback)
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#warn("Exception: %s" % ex.message)
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# DeprecationWarning: BaseException.message
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# has been deprecated
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#warn("Exception.")
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#for line in tb:
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# warn("%s" % line)
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self.putField("name", item.name)
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self.putField("value", "<invalid>")
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self.putField("type", str(item.value.type))
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self.putField("numchild", "0")
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#if self.isExpanded(item):
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self.beginChildren()
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self.endChildren()
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self.pushOutput()
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|
|
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def putItem(self, item):
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self.beginHash()
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self.putItemHelper(item)
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self.endHash()
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|
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def putItemOrPointer(self, item):
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self.beginHash()
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self.putItemOrPointerHelper(item)
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self.endHash()
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def putCallItem(self, name, item, func):
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result = call(item.value, func)
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self.putItem(Item(result, item.iname, name, name))
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|
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def putItemOrPointerHelper(self, item):
|
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if item.value.type.code == gdb.TYPE_CODE_PTR \
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and str(item.value.type.unqualified) != "char":
|
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if not isNull(item.value):
|
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self.putItemOrPointerHelper(
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Item(item.value.dereference(), item.iname, None, None))
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else:
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self.putField("value", "(null)")
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self.putField("numchild", "0")
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else:
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self.putItemHelper(item)
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|
|
|
|
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def putItemHelper(self, item, field = "value"):
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name = getattr(item, "name", None)
|
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if not name is None:
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self.putField("name", name)
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|
|
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self.putType(item.value.type)
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# FIXME: Gui shows references stripped?
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#warn("REAL INAME: %s " % item.iname)
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#warn("REAL TYPE: %s " % item.value.type)
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#warn("REAL VALUE: %s " % item.value)
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|
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value = item.value
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type = value.type
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|
|
if type.code == gdb.TYPE_CODE_REF:
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type = type.target()
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value = value.cast(type)
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|
|
|
if type.code == gdb.TYPE_CODE_TYPEDEF:
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|
type = type.target()
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|
|
|
strippedType = self.stripNamespaceFromType(
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type.strip_typedefs().unqualified()).replace("::", "__")
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|
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#warn(" STRIPPED: %s" % strippedType)
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|
#warn(" DUMPERS: %s" % self.dumpers)
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#warn(" DUMPERS: %s" % (strippedType in self.dumpers))
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|
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if isSimpleType(type):
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self.putField(field, value)
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|
if field == "value":
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self.putNumChild(0)
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|
|
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elif strippedType in self.dumpers:
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self.dumpers[strippedType](self, item)
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|
|
|
elif type.code == gdb.TYPE_CODE_ENUM:
|
|
#warn("GENERIC ENUM: %s" % value)
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|
self.putField(field, value)
|
|
self.putNumChild(0)
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|
|
|
|
|
elif type.code == gdb.TYPE_CODE_PTR:
|
|
isHandled = False
|
|
#warn("GENERIC POINTER: %s" % value)
|
|
if isNull(value):
|
|
self.putField(field, "0x0")
|
|
self.putNumChild(0)
|
|
isHandled = True
|
|
|
|
target = str(type.target().unqualified())
|
|
#warn("TARGET: %s" % target)
|
|
if target == "char" and not isHandled:
|
|
# Display values up to given length directly
|
|
firstNul = -1
|
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p = value
|
|
for i in xrange(0, 10):
|
|
if p.dereference() == 0:
|
|
# Found terminating NUL
|
|
self.putField("%sencoded" % field, "6")
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|
self.put(',%s="' % field)
|
|
p = value
|
|
for j in xrange(0, i):
|
|
self.put('%02x' % int(p.dereference()))
|
|
p += 1
|
|
self.put('"')
|
|
self.putNumChild(0)
|
|
isHandled = True
|
|
break
|
|
p += 1
|
|
|
|
if not isHandled:
|
|
# Generic pointer type.
|
|
self.putField(field, str(value.address))
|
|
self.putNumChild(1)
|
|
#warn("GENERIC POINTER: %s" % value)
|
|
if self.isExpanded(item):
|
|
self.beginChildren()
|
|
child = Item(value.dereference(), item.iname, "*", "*" + name)
|
|
self.beginHash()
|
|
self.putField("iname", child.iname)
|
|
#name = getattr(item, "name", None)
|
|
#if not name is None:
|
|
# child.name = "*%s" % name
|
|
# self.putField("name", child.name)
|
|
#self.putType(child.value.type)
|
|
self.putItemHelper(child)
|
|
self.endHash()
|
|
self.endChildren()
|
|
|
|
else:
|
|
#warn("COMMON TYPE: %s " % value.type)
|
|
#warn("INAME: %s " % item.iname)
|
|
#warn("INAMES: %s " % self.expandedINames)
|
|
#warn("EXPANDED: %self " % (item.iname in self.expandedINames))
|
|
|
|
# insufficient, see http://sourceware.org/bugzilla/show_bug.cgi?id=10953
|
|
#fields = value.type.fields()
|
|
fields = value.type.strip_typedefs().fields()
|
|
|
|
self.putField("value", "{...}")
|
|
|
|
if False:
|
|
numfields = 0
|
|
for field in fields:
|
|
bitpos = getattr(field, "bitpos", None)
|
|
if not bitpos is None:
|
|
++numfields
|
|
else:
|
|
numfields = len(fields)
|
|
self.putNumChild(numfields)
|
|
|
|
if self.isExpanded(item):
|
|
innerType = None
|
|
if len(fields) == 1 and fields[0].name is None:
|
|
innerType = value.type.target()
|
|
self.beginChildren(1, innerType)
|
|
|
|
for field in fields:
|
|
#warn("FIELD: %s" % field)
|
|
#warn(" BITSIZE: %s" % field.bitsize)
|
|
#warn(" ARTIFICIAL: %s" % field.artificial)
|
|
bitpos = getattr(field, "bitpos", None)
|
|
if bitpos is None: # FIXME: Is check correct?
|
|
continue # A static class member(?).
|
|
|
|
if field.name is None:
|
|
innerType = value.type.target()
|
|
p = value.cast(innerType.pointer())
|
|
for i in xrange(0, value.type.sizeof / innerType.sizeof):
|
|
self.putItem(Item(p.dereference(), item.iname, i, None))
|
|
p = p + 1
|
|
continue
|
|
|
|
# ignore vtable pointers for virtual inheritance
|
|
if field.name.startswith("_vptr."):
|
|
continue
|
|
|
|
child = Item(None, item.iname, field.name, field.name)
|
|
#warn("FIELD NAME: %s" % field.name)
|
|
#warn("FIELD TYPE: %s" % field.type)
|
|
if field.name == stripClassTag(str(field.type)):
|
|
# Field is base type.
|
|
child.value = value.cast(field.type)
|
|
else:
|
|
# Data member.
|
|
child.value = value[field.name]
|
|
if not child.name:
|
|
child.name = "<anon>"
|
|
self.beginHash()
|
|
#d.putField("iname", child.iname)
|
|
#d.putField("name", child.name)
|
|
#d.putType(child.value.type)
|
|
self.putItemHelper(child)
|
|
self.endHash()
|
|
self.endChildren()
|
|
|