mirror of git://gcc.gnu.org/git/gcc.git
1094 lines
38 KiB
Python
1094 lines
38 KiB
Python
# Pretty-printers for libstc++.
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# Copyright (C) 2008-2014 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import gdb
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import itertools
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import re
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# Try to use the new-style pretty-printing if available.
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_use_gdb_pp = True
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try:
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import gdb.printing
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except ImportError:
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_use_gdb_pp = False
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# Try to install type-printers.
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_use_type_printing = False
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try:
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import gdb.types
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if hasattr(gdb.types, 'TypePrinter'):
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_use_type_printing = True
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except ImportError:
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pass
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# Starting with the type ORIG, search for the member type NAME. This
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# handles searching upward through superclasses. This is needed to
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# work around http://sourceware.org/bugzilla/show_bug.cgi?id=13615.
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def find_type(orig, name):
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typ = orig.strip_typedefs()
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while True:
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search = str(typ) + '::' + name
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try:
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return gdb.lookup_type(search)
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except RuntimeError:
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pass
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# The type was not found, so try the superclass. We only need
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# to check the first superclass, so we don't bother with
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# anything fancier here.
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field = typ.fields()[0]
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if not field.is_base_class:
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raise ValueError, "Cannot find type %s::%s" % (str(orig), name)
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typ = field.type
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class SharedPointerPrinter:
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"Print a shared_ptr or weak_ptr"
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def __init__ (self, typename, val):
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self.typename = typename
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self.val = val
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def to_string (self):
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state = 'empty'
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refcounts = self.val['_M_refcount']['_M_pi']
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if refcounts != 0:
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usecount = refcounts['_M_use_count']
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weakcount = refcounts['_M_weak_count']
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if usecount == 0:
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state = 'expired, weak %d' % weakcount
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else:
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state = 'count %d, weak %d' % (usecount, weakcount - 1)
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return '%s (%s) %s' % (self.typename, state, self.val['_M_ptr'])
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class UniquePointerPrinter:
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"Print a unique_ptr"
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def __init__ (self, typename, val):
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self.val = val
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def to_string (self):
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v = self.val['_M_t']['_M_head_impl']
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return ('std::unique_ptr<%s> containing %s' % (str(v.type.target()),
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str(v)))
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class StdListPrinter:
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"Print a std::list"
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class _iterator:
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def __init__(self, nodetype, head):
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self.nodetype = nodetype
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self.base = head['_M_next']
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self.head = head.address
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self.count = 0
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def __iter__(self):
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return self
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def next(self):
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if self.base == self.head:
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raise StopIteration
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elt = self.base.cast(self.nodetype).dereference()
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self.base = elt['_M_next']
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count = self.count
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self.count = self.count + 1
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return ('[%d]' % count, elt['_M_data'])
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def __init__(self, typename, val):
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self.typename = typename
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self.val = val
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def children(self):
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nodetype = find_type(self.val.type, '_Node')
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nodetype = nodetype.strip_typedefs().pointer()
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return self._iterator(nodetype, self.val['_M_impl']['_M_node'])
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def to_string(self):
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if self.val['_M_impl']['_M_node'].address == self.val['_M_impl']['_M_node']['_M_next']:
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return 'empty %s' % (self.typename)
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return '%s' % (self.typename)
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class StdListIteratorPrinter:
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"Print std::list::iterator"
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def __init__(self, typename, val):
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self.val = val
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self.typename = typename
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def to_string(self):
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nodetype = find_type(self.val.type, '_Node')
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nodetype = nodetype.strip_typedefs().pointer()
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return self.val['_M_node'].cast(nodetype).dereference()['_M_data']
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class StdSlistPrinter:
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"Print a __gnu_cxx::slist"
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class _iterator:
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def __init__(self, nodetype, head):
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self.nodetype = nodetype
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self.base = head['_M_head']['_M_next']
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self.count = 0
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def __iter__(self):
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return self
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def next(self):
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if self.base == 0:
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raise StopIteration
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elt = self.base.cast(self.nodetype).dereference()
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self.base = elt['_M_next']
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count = self.count
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self.count = self.count + 1
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return ('[%d]' % count, elt['_M_data'])
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def __init__(self, typename, val):
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self.val = val
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def children(self):
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nodetype = find_type(self.val.type, '_Node')
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nodetype = nodetype.strip_typedefs().pointer()
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return self._iterator(nodetype, self.val)
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def to_string(self):
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if self.val['_M_head']['_M_next'] == 0:
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return 'empty __gnu_cxx::slist'
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return '__gnu_cxx::slist'
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class StdSlistIteratorPrinter:
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"Print __gnu_cxx::slist::iterator"
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def __init__(self, typename, val):
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self.val = val
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def to_string(self):
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nodetype = find_type(self.val.type, '_Node')
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nodetype = nodetype.strip_typedefs().pointer()
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return self.val['_M_node'].cast(nodetype).dereference()['_M_data']
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class StdVectorPrinter:
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"Print a std::vector"
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class _iterator:
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def __init__ (self, start, finish, bitvec):
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self.bitvec = bitvec
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if bitvec:
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self.item = start['_M_p']
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self.so = start['_M_offset']
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self.finish = finish['_M_p']
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self.fo = finish['_M_offset']
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itype = self.item.dereference().type
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self.isize = 8 * itype.sizeof
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else:
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self.item = start
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self.finish = finish
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self.count = 0
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def __iter__(self):
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return self
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def next(self):
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count = self.count
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self.count = self.count + 1
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if self.bitvec:
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if self.item == self.finish and self.so >= self.fo:
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raise StopIteration
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elt = self.item.dereference()
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if elt & (1 << self.so):
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obit = 1
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else:
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obit = 0
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self.so = self.so + 1
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if self.so >= self.isize:
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self.item = self.item + 1
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self.so = 0
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return ('[%d]' % count, obit)
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else:
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if self.item == self.finish:
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raise StopIteration
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elt = self.item.dereference()
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self.item = self.item + 1
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return ('[%d]' % count, elt)
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def __init__(self, typename, val):
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self.typename = typename
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self.val = val
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self.is_bool = val.type.template_argument(0).code == gdb.TYPE_CODE_BOOL
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def children(self):
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return self._iterator(self.val['_M_impl']['_M_start'],
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self.val['_M_impl']['_M_finish'],
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self.is_bool)
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def to_string(self):
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start = self.val['_M_impl']['_M_start']
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finish = self.val['_M_impl']['_M_finish']
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end = self.val['_M_impl']['_M_end_of_storage']
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if self.is_bool:
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start = self.val['_M_impl']['_M_start']['_M_p']
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so = self.val['_M_impl']['_M_start']['_M_offset']
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finish = self.val['_M_impl']['_M_finish']['_M_p']
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fo = self.val['_M_impl']['_M_finish']['_M_offset']
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itype = start.dereference().type
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bl = 8 * itype.sizeof
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length = (bl - so) + bl * ((finish - start) - 1) + fo
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capacity = bl * (end - start)
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return ('%s<bool> of length %d, capacity %d'
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% (self.typename, int (length), int (capacity)))
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else:
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return ('%s of length %d, capacity %d'
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% (self.typename, int (finish - start), int (end - start)))
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def display_hint(self):
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return 'array'
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class StdVectorIteratorPrinter:
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"Print std::vector::iterator"
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def __init__(self, typename, val):
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self.val = val
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def to_string(self):
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return self.val['_M_current'].dereference()
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class StdTuplePrinter:
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"Print a std::tuple"
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class _iterator:
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def __init__ (self, head):
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self.head = head
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# Set the base class as the initial head of the
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# tuple.
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nodes = self.head.type.fields ()
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if len (nodes) == 1:
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# Set the actual head to the first pair.
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self.head = self.head.cast (nodes[0].type)
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elif len (nodes) != 0:
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raise ValueError, "Top of tuple tree does not consist of a single node."
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self.count = 0
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def __iter__ (self):
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return self
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def next (self):
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nodes = self.head.type.fields ()
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# Check for further recursions in the inheritance tree.
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if len (nodes) == 0:
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raise StopIteration
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# Check that this iteration has an expected structure.
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if len (nodes) != 2:
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raise ValueError, "Cannot parse more than 2 nodes in a tuple tree."
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# - Left node is the next recursion parent.
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# - Right node is the actual class contained in the tuple.
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# Process right node.
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impl = self.head.cast (nodes[1].type)
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# Process left node and set it as head.
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self.head = self.head.cast (nodes[0].type)
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self.count = self.count + 1
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# Finally, check the implementation. If it is
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# wrapped in _M_head_impl return that, otherwise return
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# the value "as is".
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fields = impl.type.fields ()
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if len (fields) < 1 or fields[0].name != "_M_head_impl":
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return ('[%d]' % self.count, impl)
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else:
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return ('[%d]' % self.count, impl['_M_head_impl'])
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def __init__ (self, typename, val):
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self.typename = typename
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self.val = val;
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def children (self):
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return self._iterator (self.val)
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def to_string (self):
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if len (self.val.type.fields ()) == 0:
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return 'empty %s' % (self.typename)
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return '%s containing' % (self.typename)
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class StdStackOrQueuePrinter:
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"Print a std::stack or std::queue"
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def __init__ (self, typename, val):
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self.typename = typename
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self.visualizer = gdb.default_visualizer(val['c'])
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def children (self):
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return self.visualizer.children()
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def to_string (self):
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return '%s wrapping: %s' % (self.typename,
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self.visualizer.to_string())
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def display_hint (self):
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if hasattr (self.visualizer, 'display_hint'):
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return self.visualizer.display_hint ()
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return None
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class RbtreeIterator:
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def __init__(self, rbtree):
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self.size = rbtree['_M_t']['_M_impl']['_M_node_count']
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self.node = rbtree['_M_t']['_M_impl']['_M_header']['_M_left']
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self.count = 0
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def __iter__(self):
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return self
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def __len__(self):
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return int (self.size)
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def next(self):
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if self.count == self.size:
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raise StopIteration
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result = self.node
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self.count = self.count + 1
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if self.count < self.size:
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# Compute the next node.
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node = self.node
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if node.dereference()['_M_right']:
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node = node.dereference()['_M_right']
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while node.dereference()['_M_left']:
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node = node.dereference()['_M_left']
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else:
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parent = node.dereference()['_M_parent']
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while node == parent.dereference()['_M_right']:
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node = parent
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parent = parent.dereference()['_M_parent']
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if node.dereference()['_M_right'] != parent:
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node = parent
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self.node = node
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return result
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# This is a pretty printer for std::_Rb_tree_iterator (which is
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# std::map::iterator), and has nothing to do with the RbtreeIterator
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# class above.
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class StdRbtreeIteratorPrinter:
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"Print std::map::iterator"
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def __init__ (self, typename, val):
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self.val = val
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def to_string (self):
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typename = str(self.val.type.strip_typedefs()) + '::_Link_type'
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nodetype = gdb.lookup_type(typename).strip_typedefs()
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return self.val.cast(nodetype).dereference()['_M_value_field']
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class StdDebugIteratorPrinter:
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"Print a debug enabled version of an iterator"
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def __init__ (self, typename, val):
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self.val = val
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# Just strip away the encapsulating __gnu_debug::_Safe_iterator
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# and return the wrapped iterator value.
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def to_string (self):
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itype = self.val.type.template_argument(0)
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return self.val['_M_current'].cast(itype)
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class StdMapPrinter:
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"Print a std::map or std::multimap"
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# Turn an RbtreeIterator into a pretty-print iterator.
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class _iter:
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def __init__(self, rbiter, type):
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self.rbiter = rbiter
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self.count = 0
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self.type = type
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def __iter__(self):
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return self
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def next(self):
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if self.count % 2 == 0:
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n = self.rbiter.next()
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n = n.cast(self.type).dereference()['_M_value_field']
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self.pair = n
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item = n['first']
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else:
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item = self.pair['second']
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result = ('[%d]' % self.count, item)
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self.count = self.count + 1
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return result
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def __init__ (self, typename, val):
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self.typename = typename
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self.val = val
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def to_string (self):
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return '%s with %d elements' % (self.typename,
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len (RbtreeIterator (self.val)))
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def children (self):
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rep_type = find_type(self.val.type, '_Rep_type')
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node = find_type(rep_type, '_Link_type')
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node = node.strip_typedefs()
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return self._iter (RbtreeIterator (self.val), node)
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def display_hint (self):
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return 'map'
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class StdSetPrinter:
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"Print a std::set or std::multiset"
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# Turn an RbtreeIterator into a pretty-print iterator.
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class _iter:
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def __init__(self, rbiter, type):
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self.rbiter = rbiter
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self.count = 0
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self.type = type
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def __iter__(self):
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return self
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def next(self):
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item = self.rbiter.next()
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item = item.cast(self.type).dereference()['_M_value_field']
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# FIXME: this is weird ... what to do?
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# Maybe a 'set' display hint?
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result = ('[%d]' % self.count, item)
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self.count = self.count + 1
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return result
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def __init__ (self, typename, val):
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self.typename = typename
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self.val = val
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def to_string (self):
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return '%s with %d elements' % (self.typename,
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len (RbtreeIterator (self.val)))
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def children (self):
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rep_type = find_type(self.val.type, '_Rep_type')
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node = find_type(rep_type, '_Link_type')
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node = node.strip_typedefs()
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return self._iter (RbtreeIterator (self.val), node)
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class StdBitsetPrinter:
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"Print a std::bitset"
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def __init__(self, typename, val):
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self.typename = typename
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self.val = val
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def to_string (self):
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# If template_argument handled values, we could print the
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# size. Or we could use a regexp on the type.
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return '%s' % (self.typename)
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def children (self):
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words = self.val['_M_w']
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wtype = words.type
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# The _M_w member can be either an unsigned long, or an
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# array. This depends on the template specialization used.
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# If it is a single long, convert to a single element list.
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if wtype.code == gdb.TYPE_CODE_ARRAY:
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tsize = wtype.target ().sizeof
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else:
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words = [words]
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tsize = wtype.sizeof
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nwords = wtype.sizeof / tsize
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result = []
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byte = 0
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while byte < nwords:
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w = words[byte]
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bit = 0
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while w != 0:
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if (w & 1) != 0:
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# Another spot where we could use 'set'?
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result.append(('[%d]' % (byte * tsize * 8 + bit), 1))
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bit = bit + 1
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w = w >> 1
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byte = byte + 1
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return result
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class StdDequePrinter:
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"Print a std::deque"
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class _iter:
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def __init__(self, node, start, end, last, buffer_size):
|
|
self.node = node
|
|
self.p = start
|
|
self.end = end
|
|
self.last = last
|
|
self.buffer_size = buffer_size
|
|
self.count = 0
|
|
|
|
def __iter__(self):
|
|
return self
|
|
|
|
def next(self):
|
|
if self.p == self.last:
|
|
raise StopIteration
|
|
|
|
result = ('[%d]' % self.count, self.p.dereference())
|
|
self.count = self.count + 1
|
|
|
|
# Advance the 'cur' pointer.
|
|
self.p = self.p + 1
|
|
if self.p == self.end:
|
|
# If we got to the end of this bucket, move to the
|
|
# next bucket.
|
|
self.node = self.node + 1
|
|
self.p = self.node[0]
|
|
self.end = self.p + self.buffer_size
|
|
|
|
return result
|
|
|
|
def __init__(self, typename, val):
|
|
self.typename = typename
|
|
self.val = val
|
|
self.elttype = val.type.template_argument(0)
|
|
size = self.elttype.sizeof
|
|
if size < 512:
|
|
self.buffer_size = int (512 / size)
|
|
else:
|
|
self.buffer_size = 1
|
|
|
|
def to_string(self):
|
|
start = self.val['_M_impl']['_M_start']
|
|
end = self.val['_M_impl']['_M_finish']
|
|
|
|
delta_n = end['_M_node'] - start['_M_node'] - 1
|
|
delta_s = start['_M_last'] - start['_M_cur']
|
|
delta_e = end['_M_cur'] - end['_M_first']
|
|
|
|
size = self.buffer_size * delta_n + delta_s + delta_e
|
|
|
|
return '%s with %d elements' % (self.typename, long (size))
|
|
|
|
def children(self):
|
|
start = self.val['_M_impl']['_M_start']
|
|
end = self.val['_M_impl']['_M_finish']
|
|
return self._iter(start['_M_node'], start['_M_cur'], start['_M_last'],
|
|
end['_M_cur'], self.buffer_size)
|
|
|
|
def display_hint (self):
|
|
return 'array'
|
|
|
|
class StdDequeIteratorPrinter:
|
|
"Print std::deque::iterator"
|
|
|
|
def __init__(self, typename, val):
|
|
self.val = val
|
|
|
|
def to_string(self):
|
|
return self.val['_M_cur'].dereference()
|
|
|
|
class StdStringPrinter:
|
|
"Print a std::basic_string of some kind"
|
|
|
|
def __init__(self, typename, val):
|
|
self.val = val
|
|
|
|
def to_string(self):
|
|
# Make sure &string works, too.
|
|
type = self.val.type
|
|
if type.code == gdb.TYPE_CODE_REF:
|
|
type = type.target ()
|
|
|
|
# Calculate the length of the string so that to_string returns
|
|
# the string according to length, not according to first null
|
|
# encountered.
|
|
ptr = self.val ['_M_dataplus']['_M_p']
|
|
realtype = type.unqualified ().strip_typedefs ()
|
|
reptype = gdb.lookup_type (str (realtype) + '::_Rep').pointer ()
|
|
header = ptr.cast(reptype) - 1
|
|
len = header.dereference ()['_M_length']
|
|
if hasattr(ptr, "lazy_string"):
|
|
return ptr.lazy_string (length = len)
|
|
return ptr.string (length = len)
|
|
|
|
def display_hint (self):
|
|
return 'string'
|
|
|
|
class Tr1HashtableIterator:
|
|
def __init__ (self, hash):
|
|
self.buckets = hash['_M_buckets']
|
|
self.bucket = 0
|
|
self.bucket_count = hash['_M_bucket_count']
|
|
self.node_type = find_type(hash.type, '_Node').pointer()
|
|
self.node = 0
|
|
while self.bucket != self.bucket_count:
|
|
self.node = self.buckets[self.bucket]
|
|
if self.node:
|
|
break
|
|
self.bucket = self.bucket + 1
|
|
|
|
def __iter__ (self):
|
|
return self
|
|
|
|
def next (self):
|
|
if self.node == 0:
|
|
raise StopIteration
|
|
node = self.node.cast(self.node_type)
|
|
result = node.dereference()['_M_v']
|
|
self.node = node.dereference()['_M_next'];
|
|
if self.node == 0:
|
|
self.bucket = self.bucket + 1
|
|
while self.bucket != self.bucket_count:
|
|
self.node = self.buckets[self.bucket]
|
|
if self.node:
|
|
break
|
|
self.bucket = self.bucket + 1
|
|
return result
|
|
|
|
class StdHashtableIterator:
|
|
def __init__(self, hash):
|
|
self.node = hash['_M_before_begin']['_M_nxt']
|
|
self.node_type = find_type(hash.type, '__node_type').pointer()
|
|
|
|
def __iter__(self):
|
|
return self
|
|
|
|
def next(self):
|
|
if self.node == 0:
|
|
raise StopIteration
|
|
elt = self.node.cast(self.node_type).dereference()
|
|
self.node = elt['_M_nxt']
|
|
valptr = elt['_M_storage'].address
|
|
valptr = valptr.cast(elt.type.template_argument(0).pointer())
|
|
return valptr.dereference()
|
|
|
|
class Tr1UnorderedSetPrinter:
|
|
"Print a tr1::unordered_set"
|
|
|
|
def __init__ (self, typename, val):
|
|
self.typename = typename
|
|
self.val = val
|
|
|
|
def hashtable (self):
|
|
if self.typename.startswith('std::tr1'):
|
|
return self.val
|
|
return self.val['_M_h']
|
|
|
|
def to_string (self):
|
|
return '%s with %d elements' % (self.typename, self.hashtable()['_M_element_count'])
|
|
|
|
@staticmethod
|
|
def format_count (i):
|
|
return '[%d]' % i
|
|
|
|
def children (self):
|
|
counter = itertools.imap (self.format_count, itertools.count())
|
|
if self.typename.startswith('std::tr1'):
|
|
return itertools.izip (counter, Tr1HashtableIterator (self.hashtable()))
|
|
return itertools.izip (counter, StdHashtableIterator (self.hashtable()))
|
|
|
|
class Tr1UnorderedMapPrinter:
|
|
"Print a tr1::unordered_map"
|
|
|
|
def __init__ (self, typename, val):
|
|
self.typename = typename
|
|
self.val = val
|
|
|
|
def hashtable (self):
|
|
if self.typename.startswith('std::tr1'):
|
|
return self.val
|
|
return self.val['_M_h']
|
|
|
|
def to_string (self):
|
|
return '%s with %d elements' % (self.typename, self.hashtable()['_M_element_count'])
|
|
|
|
@staticmethod
|
|
def flatten (list):
|
|
for elt in list:
|
|
for i in elt:
|
|
yield i
|
|
|
|
@staticmethod
|
|
def format_one (elt):
|
|
return (elt['first'], elt['second'])
|
|
|
|
@staticmethod
|
|
def format_count (i):
|
|
return '[%d]' % i
|
|
|
|
def children (self):
|
|
counter = itertools.imap (self.format_count, itertools.count())
|
|
# Map over the hash table and flatten the result.
|
|
if self.typename.startswith('std::tr1'):
|
|
data = self.flatten (itertools.imap (self.format_one, Tr1HashtableIterator (self.hashtable())))
|
|
# Zip the two iterators together.
|
|
return itertools.izip (counter, data)
|
|
data = self.flatten (itertools.imap (self.format_one, StdHashtableIterator (self.hashtable())))
|
|
# Zip the two iterators together.
|
|
return itertools.izip (counter, data)
|
|
|
|
|
|
def display_hint (self):
|
|
return 'map'
|
|
|
|
class StdForwardListPrinter:
|
|
"Print a std::forward_list"
|
|
|
|
class _iterator:
|
|
def __init__(self, nodetype, head):
|
|
self.nodetype = nodetype
|
|
self.base = head['_M_next']
|
|
self.count = 0
|
|
|
|
def __iter__(self):
|
|
return self
|
|
|
|
def next(self):
|
|
if self.base == 0:
|
|
raise StopIteration
|
|
elt = self.base.cast(self.nodetype).dereference()
|
|
self.base = elt['_M_next']
|
|
count = self.count
|
|
self.count = self.count + 1
|
|
valptr = elt['_M_storage'].address
|
|
valptr = valptr.cast(elt.type.template_argument(0).pointer())
|
|
return ('[%d]' % count, valptr.dereference())
|
|
|
|
def __init__(self, typename, val):
|
|
self.val = val
|
|
self.typename = typename
|
|
|
|
def children(self):
|
|
nodetype = find_type(self.val.type, '_Node')
|
|
nodetype = nodetype.strip_typedefs().pointer()
|
|
return self._iterator(nodetype, self.val['_M_impl']['_M_head'])
|
|
|
|
def to_string(self):
|
|
if self.val['_M_impl']['_M_head']['_M_next'] == 0:
|
|
return 'empty %s' % (self.typename)
|
|
return '%s' % (self.typename)
|
|
|
|
|
|
# A "regular expression" printer which conforms to the
|
|
# "SubPrettyPrinter" protocol from gdb.printing.
|
|
class RxPrinter(object):
|
|
def __init__(self, name, function):
|
|
super(RxPrinter, self).__init__()
|
|
self.name = name
|
|
self.function = function
|
|
self.enabled = True
|
|
|
|
def invoke(self, value):
|
|
if not self.enabled:
|
|
return None
|
|
|
|
if value.type.code == gdb.TYPE_CODE_REF:
|
|
if hasattr(gdb.Value,"referenced_value"):
|
|
value = value.referenced_value()
|
|
|
|
return self.function(self.name, value)
|
|
|
|
# A pretty-printer that conforms to the "PrettyPrinter" protocol from
|
|
# gdb.printing. It can also be used directly as an old-style printer.
|
|
class Printer(object):
|
|
def __init__(self, name):
|
|
super(Printer, self).__init__()
|
|
self.name = name
|
|
self.subprinters = []
|
|
self.lookup = {}
|
|
self.enabled = True
|
|
self.compiled_rx = re.compile('^([a-zA-Z0-9_:]+)<.*>$')
|
|
|
|
def add(self, name, function):
|
|
# A small sanity check.
|
|
# FIXME
|
|
if not self.compiled_rx.match(name + '<>'):
|
|
raise ValueError, 'libstdc++ programming error: "%s" does not match' % name
|
|
printer = RxPrinter(name, function)
|
|
self.subprinters.append(printer)
|
|
self.lookup[name] = printer
|
|
|
|
# Add a name using _GLIBCXX_BEGIN_NAMESPACE_VERSION.
|
|
def add_version(self, base, name, function):
|
|
self.add(base + name, function)
|
|
self.add(base + '__7::' + name, function)
|
|
|
|
# Add a name using _GLIBCXX_BEGIN_NAMESPACE_CONTAINER.
|
|
def add_container(self, base, name, function):
|
|
self.add_version(base, name, function)
|
|
self.add_version(base + '__cxx1998::', name, function)
|
|
|
|
@staticmethod
|
|
def get_basic_type(type):
|
|
# If it points to a reference, get the reference.
|
|
if type.code == gdb.TYPE_CODE_REF:
|
|
type = type.target ()
|
|
|
|
# Get the unqualified type, stripped of typedefs.
|
|
type = type.unqualified ().strip_typedefs ()
|
|
|
|
return type.tag
|
|
|
|
def __call__(self, val):
|
|
typename = self.get_basic_type(val.type)
|
|
if not typename:
|
|
return None
|
|
|
|
# All the types we match are template types, so we can use a
|
|
# dictionary.
|
|
match = self.compiled_rx.match(typename)
|
|
if not match:
|
|
return None
|
|
|
|
basename = match.group(1)
|
|
|
|
if val.type.code == gdb.TYPE_CODE_REF:
|
|
if hasattr(gdb.Value,"referenced_value"):
|
|
val = val.referenced_value()
|
|
|
|
if basename in self.lookup:
|
|
return self.lookup[basename].invoke(val)
|
|
|
|
# Cannot find a pretty printer. Return None.
|
|
return None
|
|
|
|
libstdcxx_printer = None
|
|
|
|
class FilteringTypePrinter(object):
|
|
def __init__(self, match, name):
|
|
self.match = match
|
|
self.name = name
|
|
self.enabled = True
|
|
|
|
class _recognizer(object):
|
|
def __init__(self, match, name):
|
|
self.match = match
|
|
self.name = name
|
|
self.type_obj = None
|
|
|
|
def recognize(self, type_obj):
|
|
if type_obj.tag is None:
|
|
return None
|
|
|
|
if self.type_obj is None:
|
|
if not self.match in type_obj.tag:
|
|
# Filter didn't match.
|
|
return None
|
|
try:
|
|
self.type_obj = gdb.lookup_type(self.name).strip_typedefs()
|
|
except:
|
|
pass
|
|
if self.type_obj == type_obj:
|
|
return self.name
|
|
return None
|
|
|
|
def instantiate(self):
|
|
return self._recognizer(self.match, self.name)
|
|
|
|
def add_one_type_printer(obj, match, name):
|
|
printer = FilteringTypePrinter(match, 'std::' + name)
|
|
gdb.types.register_type_printer(obj, printer)
|
|
|
|
def register_type_printers(obj):
|
|
global _use_type_printing
|
|
|
|
if not _use_type_printing:
|
|
return
|
|
|
|
for pfx in ('', 'w'):
|
|
add_one_type_printer(obj, 'basic_string', pfx + 'string')
|
|
add_one_type_printer(obj, 'basic_ios', pfx + 'ios')
|
|
add_one_type_printer(obj, 'basic_streambuf', pfx + 'streambuf')
|
|
add_one_type_printer(obj, 'basic_istream', pfx + 'istream')
|
|
add_one_type_printer(obj, 'basic_ostream', pfx + 'ostream')
|
|
add_one_type_printer(obj, 'basic_iostream', pfx + 'iostream')
|
|
add_one_type_printer(obj, 'basic_stringbuf', pfx + 'stringbuf')
|
|
add_one_type_printer(obj, 'basic_istringstream',
|
|
pfx + 'istringstream')
|
|
add_one_type_printer(obj, 'basic_ostringstream',
|
|
pfx + 'ostringstream')
|
|
add_one_type_printer(obj, 'basic_stringstream',
|
|
pfx + 'stringstream')
|
|
add_one_type_printer(obj, 'basic_filebuf', pfx + 'filebuf')
|
|
add_one_type_printer(obj, 'basic_ifstream', pfx + 'ifstream')
|
|
add_one_type_printer(obj, 'basic_ofstream', pfx + 'ofstream')
|
|
add_one_type_printer(obj, 'basic_fstream', pfx + 'fstream')
|
|
add_one_type_printer(obj, 'basic_regex', pfx + 'regex')
|
|
add_one_type_printer(obj, 'sub_match', pfx + 'csub_match')
|
|
add_one_type_printer(obj, 'sub_match', pfx + 'ssub_match')
|
|
add_one_type_printer(obj, 'match_results', pfx + 'cmatch')
|
|
add_one_type_printer(obj, 'match_results', pfx + 'smatch')
|
|
add_one_type_printer(obj, 'regex_iterator', pfx + 'cregex_iterator')
|
|
add_one_type_printer(obj, 'regex_iterator', pfx + 'sregex_iterator')
|
|
add_one_type_printer(obj, 'regex_token_iterator',
|
|
pfx + 'cregex_token_iterator')
|
|
add_one_type_printer(obj, 'regex_token_iterator',
|
|
pfx + 'sregex_token_iterator')
|
|
|
|
# Note that we can't have a printer for std::wstreampos, because
|
|
# it shares the same underlying type as std::streampos.
|
|
add_one_type_printer(obj, 'fpos', 'streampos')
|
|
add_one_type_printer(obj, 'basic_string', 'u16string')
|
|
add_one_type_printer(obj, 'basic_string', 'u32string')
|
|
|
|
for dur in ('nanoseconds', 'microseconds', 'milliseconds',
|
|
'seconds', 'minutes', 'hours'):
|
|
add_one_type_printer(obj, 'duration', dur)
|
|
|
|
add_one_type_printer(obj, 'linear_congruential_engine', 'minstd_rand0')
|
|
add_one_type_printer(obj, 'linear_congruential_engine', 'minstd_rand')
|
|
add_one_type_printer(obj, 'mersenne_twister_engine', 'mt19937')
|
|
add_one_type_printer(obj, 'mersenne_twister_engine', 'mt19937_64')
|
|
add_one_type_printer(obj, 'subtract_with_carry_engine', 'ranlux24_base')
|
|
add_one_type_printer(obj, 'subtract_with_carry_engine', 'ranlux48_base')
|
|
add_one_type_printer(obj, 'discard_block_engine', 'ranlux24')
|
|
add_one_type_printer(obj, 'discard_block_engine', 'ranlux48')
|
|
add_one_type_printer(obj, 'shuffle_order_engine', 'knuth_b')
|
|
|
|
def register_libstdcxx_printers (obj):
|
|
"Register libstdc++ pretty-printers with objfile Obj."
|
|
|
|
global _use_gdb_pp
|
|
global libstdcxx_printer
|
|
|
|
if _use_gdb_pp:
|
|
gdb.printing.register_pretty_printer(obj, libstdcxx_printer)
|
|
else:
|
|
if obj is None:
|
|
obj = gdb
|
|
obj.pretty_printers.append(libstdcxx_printer)
|
|
|
|
register_type_printers(obj)
|
|
|
|
def build_libstdcxx_dictionary ():
|
|
global libstdcxx_printer
|
|
|
|
libstdcxx_printer = Printer("libstdc++-v6")
|
|
|
|
# For _GLIBCXX_BEGIN_NAMESPACE_VERSION.
|
|
vers = '(__7::)?'
|
|
# For _GLIBCXX_BEGIN_NAMESPACE_CONTAINER.
|
|
container = '(__cxx1998::' + vers + ')?'
|
|
|
|
# libstdc++ objects requiring pretty-printing.
|
|
# In order from:
|
|
# http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01847.html
|
|
libstdcxx_printer.add_version('std::', 'basic_string', StdStringPrinter)
|
|
libstdcxx_printer.add_container('std::', 'bitset', StdBitsetPrinter)
|
|
libstdcxx_printer.add_container('std::', 'deque', StdDequePrinter)
|
|
libstdcxx_printer.add_container('std::', 'list', StdListPrinter)
|
|
libstdcxx_printer.add_container('std::', 'map', StdMapPrinter)
|
|
libstdcxx_printer.add_container('std::', 'multimap', StdMapPrinter)
|
|
libstdcxx_printer.add_container('std::', 'multiset', StdSetPrinter)
|
|
libstdcxx_printer.add_version('std::', 'priority_queue',
|
|
StdStackOrQueuePrinter)
|
|
libstdcxx_printer.add_version('std::', 'queue', StdStackOrQueuePrinter)
|
|
libstdcxx_printer.add_version('std::', 'tuple', StdTuplePrinter)
|
|
libstdcxx_printer.add_container('std::', 'set', StdSetPrinter)
|
|
libstdcxx_printer.add_version('std::', 'stack', StdStackOrQueuePrinter)
|
|
libstdcxx_printer.add_version('std::', 'unique_ptr', UniquePointerPrinter)
|
|
libstdcxx_printer.add_container('std::', 'vector', StdVectorPrinter)
|
|
# vector<bool>
|
|
|
|
# Printer registrations for classes compiled with -D_GLIBCXX_DEBUG.
|
|
libstdcxx_printer.add('std::__debug::bitset', StdBitsetPrinter)
|
|
libstdcxx_printer.add('std::__debug::deque', StdDequePrinter)
|
|
libstdcxx_printer.add('std::__debug::list', StdListPrinter)
|
|
libstdcxx_printer.add('std::__debug::map', StdMapPrinter)
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|
libstdcxx_printer.add('std::__debug::multimap', StdMapPrinter)
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|
libstdcxx_printer.add('std::__debug::multiset', StdSetPrinter)
|
|
libstdcxx_printer.add('std::__debug::priority_queue',
|
|
StdStackOrQueuePrinter)
|
|
libstdcxx_printer.add('std::__debug::queue', StdStackOrQueuePrinter)
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|
libstdcxx_printer.add('std::__debug::set', StdSetPrinter)
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|
libstdcxx_printer.add('std::__debug::stack', StdStackOrQueuePrinter)
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|
libstdcxx_printer.add('std::__debug::unique_ptr', UniquePointerPrinter)
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|
libstdcxx_printer.add('std::__debug::vector', StdVectorPrinter)
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|
|
|
# These are the TR1 and C++0x printers.
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|
# For array - the default GDB pretty-printer seems reasonable.
|
|
libstdcxx_printer.add_version('std::', 'shared_ptr', SharedPointerPrinter)
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|
libstdcxx_printer.add_version('std::', 'weak_ptr', SharedPointerPrinter)
|
|
libstdcxx_printer.add_container('std::', 'unordered_map',
|
|
Tr1UnorderedMapPrinter)
|
|
libstdcxx_printer.add_container('std::', 'unordered_set',
|
|
Tr1UnorderedSetPrinter)
|
|
libstdcxx_printer.add_container('std::', 'unordered_multimap',
|
|
Tr1UnorderedMapPrinter)
|
|
libstdcxx_printer.add_container('std::', 'unordered_multiset',
|
|
Tr1UnorderedSetPrinter)
|
|
libstdcxx_printer.add_container('std::', 'forward_list',
|
|
StdForwardListPrinter)
|
|
|
|
libstdcxx_printer.add_version('std::tr1::', 'shared_ptr', SharedPointerPrinter)
|
|
libstdcxx_printer.add_version('std::tr1::', 'weak_ptr', SharedPointerPrinter)
|
|
libstdcxx_printer.add_version('std::tr1::', 'unordered_map',
|
|
Tr1UnorderedMapPrinter)
|
|
libstdcxx_printer.add_version('std::tr1::', 'unordered_set',
|
|
Tr1UnorderedSetPrinter)
|
|
libstdcxx_printer.add_version('std::tr1::', 'unordered_multimap',
|
|
Tr1UnorderedMapPrinter)
|
|
libstdcxx_printer.add_version('std::tr1::', 'unordered_multiset',
|
|
Tr1UnorderedSetPrinter)
|
|
|
|
# These are the C++0x printer registrations for -D_GLIBCXX_DEBUG cases.
|
|
# The tr1 namespace printers do not seem to have any debug
|
|
# equivalents, so do no register them.
|
|
libstdcxx_printer.add('std::__debug::unordered_map',
|
|
Tr1UnorderedMapPrinter)
|
|
libstdcxx_printer.add('std::__debug::unordered_set',
|
|
Tr1UnorderedSetPrinter)
|
|
libstdcxx_printer.add('std::__debug::unordered_multimap',
|
|
Tr1UnorderedMapPrinter)
|
|
libstdcxx_printer.add('std::__debug::unordered_multiset',
|
|
Tr1UnorderedSetPrinter)
|
|
libstdcxx_printer.add('std::__debug::forward_list',
|
|
StdForwardListPrinter)
|
|
|
|
|
|
# Extensions.
|
|
libstdcxx_printer.add_version('__gnu_cxx::', 'slist', StdSlistPrinter)
|
|
|
|
if True:
|
|
# These shouldn't be necessary, if GDB "print *i" worked.
|
|
# But it often doesn't, so here they are.
|
|
libstdcxx_printer.add_container('std::', '_List_iterator',
|
|
StdListIteratorPrinter)
|
|
libstdcxx_printer.add_container('std::', '_List_const_iterator',
|
|
StdListIteratorPrinter)
|
|
libstdcxx_printer.add_version('std::', '_Rb_tree_iterator',
|
|
StdRbtreeIteratorPrinter)
|
|
libstdcxx_printer.add_version('std::', '_Rb_tree_const_iterator',
|
|
StdRbtreeIteratorPrinter)
|
|
libstdcxx_printer.add_container('std::', '_Deque_iterator',
|
|
StdDequeIteratorPrinter)
|
|
libstdcxx_printer.add_container('std::', '_Deque_const_iterator',
|
|
StdDequeIteratorPrinter)
|
|
libstdcxx_printer.add_version('__gnu_cxx::', '__normal_iterator',
|
|
StdVectorIteratorPrinter)
|
|
libstdcxx_printer.add_version('__gnu_cxx::', '_Slist_iterator',
|
|
StdSlistIteratorPrinter)
|
|
|
|
# Debug (compiled with -D_GLIBCXX_DEBUG) printer
|
|
# registrations. The Rb_tree debug iterator when unwrapped
|
|
# from the encapsulating __gnu_debug::_Safe_iterator does not
|
|
# have the __norm namespace. Just use the existing printer
|
|
# registration for that.
|
|
libstdcxx_printer.add('__gnu_debug::_Safe_iterator',
|
|
StdDebugIteratorPrinter)
|
|
libstdcxx_printer.add('std::__norm::_List_iterator',
|
|
StdListIteratorPrinter)
|
|
libstdcxx_printer.add('std::__norm::_List_const_iterator',
|
|
StdListIteratorPrinter)
|
|
libstdcxx_printer.add('std::__norm::_Deque_const_iterator',
|
|
StdDequeIteratorPrinter)
|
|
libstdcxx_printer.add('std::__norm::_Deque_iterator',
|
|
StdDequeIteratorPrinter)
|
|
|
|
build_libstdcxx_dictionary ()
|