| # Pretty-printers for libstdc++. |
| |
| # Copyright (C) 2008-2021 Free Software Foundation, Inc. |
| |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 3 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| import gdb |
| import itertools |
| import re |
| import sys, os, errno |
| |
| ### Python 2 + Python 3 compatibility code |
| |
| # Resources about compatibility: |
| # |
| # * <http://pythonhosted.org/six/>: Documentation of the "six" module |
| |
| # FIXME: The handling of e.g. std::basic_string (at least on char) |
| # probably needs updating to work with Python 3's new string rules. |
| # |
| # In particular, Python 3 has a separate type (called byte) for |
| # bytestrings, and a special b"" syntax for the byte literals; the old |
| # str() type has been redefined to always store Unicode text. |
| # |
| # We probably can't do much about this until this GDB PR is addressed: |
| # <https://sourceware.org/bugzilla/show_bug.cgi?id=17138> |
| |
| if sys.version_info[0] > 2: |
| ### Python 3 stuff |
| Iterator = object |
| # Python 3 folds these into the normal functions. |
| imap = map |
| izip = zip |
| # Also, int subsumes long |
| long = int |
| else: |
| ### Python 2 stuff |
| class Iterator: |
| """Compatibility mixin for iterators |
| |
| Instead of writing next() methods for iterators, write |
| __next__() methods and use this mixin to make them work in |
| Python 2 as well as Python 3. |
| |
| Idea stolen from the "six" documentation: |
| <http://pythonhosted.org/six/#six.Iterator> |
| """ |
| |
| def next(self): |
| return self.__next__() |
| |
| # In Python 2, we still need these from itertools |
| from itertools import imap, izip |
| |
| # Try to use the new-style pretty-printing if available. |
| _use_gdb_pp = True |
| try: |
| import gdb.printing |
| except ImportError: |
| _use_gdb_pp = False |
| |
| # Try to install type-printers. |
| _use_type_printing = False |
| try: |
| import gdb.types |
| if hasattr(gdb.types, 'TypePrinter'): |
| _use_type_printing = True |
| except ImportError: |
| pass |
| |
| # Starting with the type ORIG, search for the member type NAME. This |
| # handles searching upward through superclasses. This is needed to |
| # work around http://sourceware.org/bugzilla/show_bug.cgi?id=13615. |
| def find_type(orig, name): |
| typ = orig.strip_typedefs() |
| while True: |
| # Use Type.tag to ignore cv-qualifiers. PR 67440. |
| search = '%s::%s' % (typ.tag, name) |
| try: |
| return gdb.lookup_type(search) |
| except RuntimeError: |
| pass |
| # The type was not found, so try the superclass. We only need |
| # to check the first superclass, so we don't bother with |
| # anything fancier here. |
| fields = typ.fields() |
| if len(fields) and fields[0].is_base_class: |
| typ = fields[0].type |
| else: |
| raise ValueError("Cannot find type %s::%s" % (str(orig), name)) |
| |
| _versioned_namespace = '__8::' |
| |
| def lookup_templ_spec(templ, *args): |
| """ |
| Lookup template specialization templ<args...> |
| """ |
| t = '{}<{}>'.format(templ, ', '.join([str(a) for a in args])) |
| try: |
| return gdb.lookup_type(t) |
| except gdb.error as e: |
| # Type not found, try again in versioned namespace. |
| global _versioned_namespace |
| if _versioned_namespace and _versioned_namespace not in templ: |
| t = t.replace('::', '::' + _versioned_namespace, 1) |
| try: |
| return gdb.lookup_type(t) |
| except gdb.error: |
| # If that also fails, rethrow the original exception |
| pass |
| raise e |
| |
| # Use this to find container node types instead of find_type, |
| # see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91997 for details. |
| def lookup_node_type(nodename, containertype): |
| """ |
| Lookup specialization of template NODENAME corresponding to CONTAINERTYPE. |
| e.g. if NODENAME is '_List_node' and CONTAINERTYPE is std::list<int> |
| then return the type std::_List_node<int>. |
| Returns None if not found. |
| """ |
| # If nodename is unqualified, assume it's in namespace std. |
| if '::' not in nodename: |
| nodename = 'std::' + nodename |
| try: |
| valtype = find_type(containertype, 'value_type') |
| except: |
| valtype = containertype.template_argument(0) |
| valtype = valtype.strip_typedefs() |
| try: |
| return lookup_templ_spec(nodename, valtype) |
| except gdb.error as e: |
| # For debug mode containers the node is in std::__cxx1998. |
| if is_member_of_namespace(nodename, 'std'): |
| if is_member_of_namespace(containertype, 'std::__cxx1998', |
| 'std::__debug', '__gnu_debug'): |
| nodename = nodename.replace('::', '::__cxx1998::', 1) |
| try: |
| return lookup_templ_spec(nodename, valtype) |
| except gdb.error: |
| pass |
| return None |
| |
| def is_member_of_namespace(typ, *namespaces): |
| """ |
| Test whether a type is a member of one of the specified namespaces. |
| The type can be specified as a string or a gdb.Type object. |
| """ |
| if type(typ) is gdb.Type: |
| typ = str(typ) |
| typ = strip_versioned_namespace(typ) |
| for namespace in namespaces: |
| if typ.startswith(namespace + '::'): |
| return True |
| return False |
| |
| def is_specialization_of(x, template_name): |
| "Test if a type is a given template instantiation." |
| global _versioned_namespace |
| if type(x) is gdb.Type: |
| x = x.tag |
| if _versioned_namespace: |
| return re.match('^std::(%s)?%s<.*>$' % (_versioned_namespace, template_name), x) is not None |
| return re.match('^std::%s<.*>$' % template_name, x) is not None |
| |
| def strip_versioned_namespace(typename): |
| global _versioned_namespace |
| if _versioned_namespace: |
| return typename.replace(_versioned_namespace, '') |
| return typename |
| |
| def strip_inline_namespaces(type_str): |
| "Remove known inline namespaces from the canonical name of a type." |
| type_str = strip_versioned_namespace(type_str) |
| type_str = type_str.replace('std::__cxx11::', 'std::') |
| expt_ns = 'std::experimental::' |
| for lfts_ns in ('fundamentals_v1', 'fundamentals_v2'): |
| type_str = type_str.replace(expt_ns+lfts_ns+'::', expt_ns) |
| fs_ns = expt_ns + 'filesystem::' |
| type_str = type_str.replace(fs_ns+'v1::', fs_ns) |
| return type_str |
| |
| def get_template_arg_list(type_obj): |
| "Return a type's template arguments as a list" |
| n = 0 |
| template_args = [] |
| while True: |
| try: |
| template_args.append(type_obj.template_argument(n)) |
| except: |
| return template_args |
| n += 1 |
| |
| class SmartPtrIterator(Iterator): |
| "An iterator for smart pointer types with a single 'child' value" |
| |
| def __init__(self, val): |
| self.val = val |
| |
| def __iter__(self): |
| return self |
| |
| def __next__(self): |
| if self.val is None: |
| raise StopIteration |
| self.val, val = None, self.val |
| return ('get()', val) |
| |
| class SharedPointerPrinter: |
| "Print a shared_ptr or weak_ptr" |
| |
| def __init__ (self, typename, val): |
| self.typename = strip_versioned_namespace(typename) |
| self.val = val |
| self.pointer = val['_M_ptr'] |
| |
| def children (self): |
| return SmartPtrIterator(self.pointer) |
| |
| def to_string (self): |
| state = 'empty' |
| refcounts = self.val['_M_refcount']['_M_pi'] |
| if refcounts != 0: |
| usecount = refcounts['_M_use_count'] |
| weakcount = refcounts['_M_weak_count'] |
| if usecount == 0: |
| state = 'expired, weak count %d' % weakcount |
| else: |
| state = 'use count %d, weak count %d' % (usecount, weakcount - 1) |
| return '%s<%s> (%s)' % (self.typename, str(self.val.type.template_argument(0)), state) |
| |
| class UniquePointerPrinter: |
| "Print a unique_ptr" |
| |
| def __init__ (self, typename, val): |
| self.val = val |
| impl_type = val.type.fields()[0].type.strip_typedefs() |
| # Check for new implementations first: |
| if is_specialization_of(impl_type, '__uniq_ptr_data') \ |
| or is_specialization_of(impl_type, '__uniq_ptr_impl'): |
| tuple_member = val['_M_t']['_M_t'] |
| elif is_specialization_of(impl_type, 'tuple'): |
| tuple_member = val['_M_t'] |
| else: |
| raise ValueError("Unsupported implementation for unique_ptr: %s" % str(impl_type)) |
| tuple_impl_type = tuple_member.type.fields()[0].type # _Tuple_impl |
| tuple_head_type = tuple_impl_type.fields()[1].type # _Head_base |
| head_field = tuple_head_type.fields()[0] |
| if head_field.name == '_M_head_impl': |
| self.pointer = tuple_member['_M_head_impl'] |
| elif head_field.is_base_class: |
| self.pointer = tuple_member.cast(head_field.type) |
| else: |
| raise ValueError("Unsupported implementation for tuple in unique_ptr: %s" % str(impl_type)) |
| |
| def children (self): |
| return SmartPtrIterator(self.pointer) |
| |
| def to_string (self): |
| return ('std::unique_ptr<%s>' % (str(self.val.type.template_argument(0)))) |
| |
| def get_value_from_aligned_membuf(buf, valtype): |
| """Returns the value held in a __gnu_cxx::__aligned_membuf.""" |
| return buf['_M_storage'].address.cast(valtype.pointer()).dereference() |
| |
| def get_value_from_list_node(node): |
| """Returns the value held in an _List_node<_Val>""" |
| try: |
| member = node.type.fields()[1].name |
| if member == '_M_data': |
| # C++03 implementation, node contains the value as a member |
| return node['_M_data'] |
| elif member == '_M_storage': |
| # C++11 implementation, node stores value in __aligned_membuf |
| valtype = node.type.template_argument(0) |
| return get_value_from_aligned_membuf(node['_M_storage'], valtype) |
| except: |
| pass |
| raise ValueError("Unsupported implementation for %s" % str(node.type)) |
| |
| class StdListPrinter: |
| "Print a std::list" |
| |
| class _iterator(Iterator): |
| def __init__(self, nodetype, head): |
| self.nodetype = nodetype |
| self.base = head['_M_next'] |
| self.head = head.address |
| self.count = 0 |
| |
| def __iter__(self): |
| return self |
| |
| def __next__(self): |
| if self.base == self.head: |
| raise StopIteration |
| elt = self.base.cast(self.nodetype).dereference() |
| self.base = elt['_M_next'] |
| count = self.count |
| self.count = self.count + 1 |
| val = get_value_from_list_node(elt) |
| return ('[%d]' % count, val) |
| |
| def __init__(self, typename, val): |
| self.typename = strip_versioned_namespace(typename) |
| self.val = val |
| |
| def children(self): |
| nodetype = lookup_node_type('_List_node', self.val.type).pointer() |
| return self._iterator(nodetype, self.val['_M_impl']['_M_node']) |
| |
| def to_string(self): |
| headnode = self.val['_M_impl']['_M_node'] |
| if headnode['_M_next'] == headnode.address: |
| return 'empty %s' % (self.typename) |
| return '%s' % (self.typename) |
| |
| class NodeIteratorPrinter: |
| def __init__(self, typename, val, contname, nodename): |
| self.val = val |
| self.typename = typename |
| self.contname = contname |
| self.nodetype = lookup_node_type(nodename, val.type) |
| |
| def to_string(self): |
| if not self.val['_M_node']: |
| return 'non-dereferenceable iterator for std::%s' % (self.contname) |
| node = self.val['_M_node'].cast(self.nodetype.pointer()).dereference() |
| return str(get_value_from_list_node(node)) |
| |
| class StdListIteratorPrinter(NodeIteratorPrinter): |
| "Print std::list::iterator" |
| |
| def __init__(self, typename, val): |
| NodeIteratorPrinter.__init__(self, typename, val, 'list', '_List_node') |
| |
| class StdFwdListIteratorPrinter(NodeIteratorPrinter): |
| "Print std::forward_list::iterator" |
| |
| def __init__(self, typename, val): |
| NodeIteratorPrinter.__init__(self, typename, val, 'forward_list', |
| '_Fwd_list_node') |
| |
| class StdSlistPrinter: |
| "Print a __gnu_cxx::slist" |
| |
| class _iterator(Iterator): |
| def __init__(self, nodetype, head): |
| self.nodetype = nodetype |
| self.base = head['_M_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 |
| return ('[%d]' % count, elt['_M_data']) |
| |
| def __init__(self, typename, val): |
| self.val = val |
| |
| def children(self): |
| nodetype = lookup_node_type('__gnu_cxx::_Slist_node', self.val.type) |
| return self._iterator(nodetype.pointer(), self.val) |
| |
| def to_string(self): |
| if self.val['_M_head']['_M_next'] == 0: |
| return 'empty __gnu_cxx::slist' |
| return '__gnu_cxx::slist' |
| |
| class StdSlistIteratorPrinter: |
| "Print __gnu_cxx::slist::iterator" |
| |
| def __init__(self, typename, val): |
| self.val = val |
| |
| def to_string(self): |
| if not self.val['_M_node']: |
| return 'non-dereferenceable iterator for __gnu_cxx::slist' |
| nodetype = lookup_node_type('__gnu_cxx::_Slist_node', self.val.type).pointer() |
| return str(self.val['_M_node'].cast(nodetype).dereference()['_M_data']) |
| |
| class StdVectorPrinter: |
| "Print a std::vector" |
| |
| class _iterator(Iterator): |
| def __init__ (self, start, finish, bitvec): |
| self.bitvec = bitvec |
| if bitvec: |
| self.item = start['_M_p'] |
| self.so = 0 |
| self.finish = finish['_M_p'] |
| self.fo = finish['_M_offset'] |
| itype = self.item.dereference().type |
| self.isize = 8 * itype.sizeof |
| else: |
| self.item = start |
| self.finish = finish |
| self.count = 0 |
| |
| def __iter__(self): |
| return self |
| |
| def __next__(self): |
| count = self.count |
| self.count = self.count + 1 |
| if self.bitvec: |
| if self.item == self.finish and self.so >= self.fo: |
| raise StopIteration |
| elt = bool(self.item.dereference() & (1 << self.so)) |
| self.so = self.so + 1 |
| if self.so >= self.isize: |
| self.item = self.item + 1 |
| self.so = 0 |
| return ('[%d]' % count, elt) |
| else: |
| if self.item == self.finish: |
| raise StopIteration |
| elt = self.item.dereference() |
| self.item = self.item + 1 |
| return ('[%d]' % count, elt) |
| |
| def __init__(self, typename, val): |
| self.typename = strip_versioned_namespace(typename) |
| self.val = val |
| self.is_bool = val.type.template_argument(0).code == gdb.TYPE_CODE_BOOL |
| |
| def children(self): |
| return self._iterator(self.val['_M_impl']['_M_start'], |
| self.val['_M_impl']['_M_finish'], |
| self.is_bool) |
| |
| def to_string(self): |
| start = self.val['_M_impl']['_M_start'] |
| finish = self.val['_M_impl']['_M_finish'] |
| end = self.val['_M_impl']['_M_end_of_storage'] |
| if self.is_bool: |
| start = self.val['_M_impl']['_M_start']['_M_p'] |
| finish = self.val['_M_impl']['_M_finish']['_M_p'] |
| fo = self.val['_M_impl']['_M_finish']['_M_offset'] |
| itype = start.dereference().type |
| bl = 8 * itype.sizeof |
| length = bl * (finish - start) + fo |
| capacity = bl * (end - start) |
| return ('%s<bool> of length %d, capacity %d' |
| % (self.typename, int (length), int (capacity))) |
| else: |
| return ('%s of length %d, capacity %d' |
| % (self.typename, int (finish - start), int (end - start))) |
| |
| def display_hint(self): |
| return 'array' |
| |
| class StdVectorIteratorPrinter: |
| "Print std::vector::iterator" |
| |
| def __init__(self, typename, val): |
| self.val = val |
| |
| def to_string(self): |
| if not self.val['_M_current']: |
| return 'non-dereferenceable iterator for std::vector' |
| return str(self.val['_M_current'].dereference()) |
| |
| class StdBitIteratorPrinter: |
| "Print std::vector<bool>'s _Bit_iterator and _Bit_const_iterator" |
| |
| def __init__(self, typename, val): |
| self.val = val |
| |
| def to_string(self): |
| if not self.val['_M_p']: |
| return 'non-dereferenceable iterator for std::vector<bool>' |
| return bool(self.val['_M_p'].dereference() & (1 << self.val['_M_offset'])) |
| |
| class StdBitReferencePrinter: |
| "Print std::vector<bool>::reference" |
| |
| def __init__(self, typename, val): |
| self.val = val |
| |
| def to_string(self): |
| if not self.val['_M_p']: |
| return 'invalid std::vector<bool>::reference' |
| return bool(self.val['_M_p'].dereference() & (self.val['_M_mask'])) |
| |
| class StdTuplePrinter: |
| "Print a std::tuple" |
| |
| class _iterator(Iterator): |
| @staticmethod |
| def _is_nonempty_tuple (nodes): |
| if len (nodes) == 2: |
| if is_specialization_of (nodes[1].type, '__tuple_base'): |
| return True |
| elif len (nodes) == 1: |
| return True |
| elif len (nodes) == 0: |
| return False |
| raise ValueError("Top of tuple tree does not consist of a single node.") |
| |
| def __init__ (self, head): |
| self.head = head |
| |
| # Set the base class as the initial head of the |
| # tuple. |
| nodes = self.head.type.fields () |
| if self._is_nonempty_tuple (nodes): |
| # Set the actual head to the first pair. |
| self.head = self.head.cast (nodes[0].type) |
| self.count = 0 |
| |
| def __iter__ (self): |
| return self |
| |
| def __next__ (self): |
| # Check for further recursions in the inheritance tree. |
| # For a GCC 5+ tuple self.head is None after visiting all nodes: |
| if not self.head: |
| raise StopIteration |
| nodes = self.head.type.fields () |
| # For a GCC 4.x tuple there is a final node with no fields: |
| if len (nodes) == 0: |
| raise StopIteration |
| # Check that this iteration has an expected structure. |
| if len (nodes) > 2: |
| raise ValueError("Cannot parse more than 2 nodes in a tuple tree.") |
| |
| if len (nodes) == 1: |
| # This is the last node of a GCC 5+ std::tuple. |
| impl = self.head.cast (nodes[0].type) |
| self.head = None |
| else: |
| # Either a node before the last node, or the last node of |
| # a GCC 4.x tuple (which has an empty parent). |
| |
| # - Left node is the next recursion parent. |
| # - Right node is the actual class contained in the tuple. |
| |
| # Process right node. |
| impl = self.head.cast (nodes[1].type) |
| |
| # Process left node and set it as head. |
| self.head = self.head.cast (nodes[0].type) |
| |
| self.count = self.count + 1 |
| |
| # Finally, check the implementation. If it is |
| # wrapped in _M_head_impl return that, otherwise return |
| # the value "as is". |
| fields = impl.type.fields () |
| if len (fields) < 1 or fields[0].name != "_M_head_impl": |
| return ('[%d]' % self.count, impl) |
| else: |
| return ('[%d]' % self.count, impl['_M_head_impl']) |
| |
| def __init__ (self, typename, val): |
| self.typename = strip_versioned_namespace(typename) |
| self.val = val; |
| |
| def children (self): |
| return self._iterator (self.val) |
| |
| def to_string (self): |
| if len (self.val.type.fields ()) == 0: |
| return 'empty %s' % (self.typename) |
| return '%s containing' % (self.typename) |
| |
| class StdStackOrQueuePrinter: |
| "Print a std::stack or std::queue" |
| |
| def __init__ (self, typename, val): |
| self.typename = strip_versioned_namespace(typename) |
| self.visualizer = gdb.default_visualizer(val['c']) |
| |
| def children (self): |
| return self.visualizer.children() |
| |
| def to_string (self): |
| return '%s wrapping: %s' % (self.typename, |
| self.visualizer.to_string()) |
| |
| def display_hint (self): |
| if hasattr (self.visualizer, 'display_hint'): |
| return self.visualizer.display_hint () |
| return None |
| |
| class RbtreeIterator(Iterator): |
| """ |
| Turn an RB-tree-based container (std::map, std::set etc.) into |
| a Python iterable object. |
| """ |
| |
| def __init__(self, rbtree): |
| self.size = rbtree['_M_t']['_M_impl']['_M_node_count'] |
| self.node = rbtree['_M_t']['_M_impl']['_M_header']['_M_left'] |
| self.count = 0 |
| |
| def __iter__(self): |
| return self |
| |
| def __len__(self): |
| return int (self.size) |
| |
| def __next__(self): |
| if self.count == self.size: |
| raise StopIteration |
| result = self.node |
| self.count = self.count + 1 |
| if self.count < self.size: |
| # Compute the next node. |
| node = self.node |
| if node.dereference()['_M_right']: |
| node = node.dereference()['_M_right'] |
| while node.dereference()['_M_left']: |
| node = node.dereference()['_M_left'] |
| else: |
| parent = node.dereference()['_M_parent'] |
| while node == parent.dereference()['_M_right']: |
| node = parent |
| parent = parent.dereference()['_M_parent'] |
| if node.dereference()['_M_right'] != parent: |
| node = parent |
| self.node = node |
| return result |
| |
| def get_value_from_Rb_tree_node(node): |
| """Returns the value held in an _Rb_tree_node<_Val>""" |
| try: |
| member = node.type.fields()[1].name |
| if member == '_M_value_field': |
| # C++03 implementation, node contains the value as a member |
| return node['_M_value_field'] |
| elif member == '_M_storage': |
| # C++11 implementation, node stores value in __aligned_membuf |
| valtype = node.type.template_argument(0) |
| return get_value_from_aligned_membuf(node['_M_storage'], valtype) |
| except: |
| pass |
| raise ValueError("Unsupported implementation for %s" % str(node.type)) |
| |
| # This is a pretty printer for std::_Rb_tree_iterator (which is |
| # std::map::iterator), and has nothing to do with the RbtreeIterator |
| # class above. |
| class StdRbtreeIteratorPrinter: |
| "Print std::map::iterator, std::set::iterator, etc." |
| |
| def __init__ (self, typename, val): |
| self.val = val |
| nodetype = lookup_node_type('_Rb_tree_node', self.val.type) |
| self.link_type = nodetype.pointer() |
| |
| def to_string (self): |
| if not self.val['_M_node']: |
| return 'non-dereferenceable iterator for associative container' |
| node = self.val['_M_node'].cast(self.link_type).dereference() |
| return str(get_value_from_Rb_tree_node(node)) |
| |
| class StdDebugIteratorPrinter: |
| "Print a debug enabled version of an iterator" |
| |
| def __init__ (self, typename, val): |
| self.val = val |
| |
| # Just strip away the encapsulating __gnu_debug::_Safe_iterator |
| # and return the wrapped iterator value. |
| def to_string (self): |
| base_type = gdb.lookup_type('__gnu_debug::_Safe_iterator_base') |
| itype = self.val.type.template_argument(0) |
| safe_seq = self.val.cast(base_type)['_M_sequence'] |
| if not safe_seq: |
| return str(self.val.cast(itype)) |
| if self.val['_M_version'] != safe_seq['_M_version']: |
| return "invalid iterator" |
| return str(self.val.cast(itype)) |
| |
| def num_elements(num): |
| """Return either "1 element" or "N elements" depending on the argument.""" |
| return '1 element' if num == 1 else '%d elements' % num |
| |
| class StdMapPrinter: |
| "Print a std::map or std::multimap" |
| |
| # Turn an RbtreeIterator into a pretty-print iterator. |
| class _iter(Iterator): |
| def __init__(self, rbiter, type): |
| self.rbiter = rbiter |
| self.count = 0 |
| self.type = type |
| |
| def __iter__(self): |
| return self |
| |
| def __next__(self): |
| if self.count % 2 == 0: |
| n = next(self.rbiter) |
| n = n.cast(self.type).dereference() |
| n = get_value_from_Rb_tree_node(n) |
| self.pair = n |
| item = n['first'] |
| else: |
| item = self.pair['second'] |
| result = ('[%d]' % self.count, item) |
| self.count = self.count + 1 |
| return result |
| |
| def __init__ (self, typename, val): |
| self.typename = strip_versioned_namespace(typename) |
| self.val = val |
| |
| def to_string (self): |
| return '%s with %s' % (self.typename, |
| num_elements(len(RbtreeIterator (self.val)))) |
| |
| def children (self): |
| node = lookup_node_type('_Rb_tree_node', self.val.type).pointer() |
| return self._iter (RbtreeIterator (self.val), node) |
| |
| def display_hint (self): |
| return 'map' |
| |
| class StdSetPrinter: |
| "Print a std::set or std::multiset" |
| |
| # Turn an RbtreeIterator into a pretty-print iterator. |
| class _iter(Iterator): |
| def __init__(self, rbiter, type): |
| self.rbiter = rbiter |
| self.count = 0 |
| self.type = type |
| |
| def __iter__(self): |
| return self |
| |
| def __next__(self): |
| item = next(self.rbiter) |
| item = item.cast(self.type).dereference() |
| item = get_value_from_Rb_tree_node(item) |
| # FIXME: this is weird ... what to do? |
| # Maybe a 'set' display hint? |
| result = ('[%d]' % self.count, item) |
| self.count = self.count + 1 |
| return result |
| |
| def __init__ (self, typename, val): |
| self.typename = strip_versioned_namespace(typename) |
| self.val = val |
| |
| def to_string (self): |
| return '%s with %s' % (self.typename, |
| num_elements(len(RbtreeIterator (self.val)))) |
| |
| def children (self): |
| node = lookup_node_type('_Rb_tree_node', self.val.type).pointer() |
| return self._iter (RbtreeIterator (self.val), node) |
| |
| class StdBitsetPrinter: |
| "Print a std::bitset" |
| |
| def __init__(self, typename, val): |
| self.typename = strip_versioned_namespace(typename) |
| self.val = val |
| |
| def to_string (self): |
| # If template_argument handled values, we could print the |
| # size. Or we could use a regexp on the type. |
| return '%s' % (self.typename) |
| |
| def children (self): |
| try: |
| # An empty bitset may not have any members which will |
| # result in an exception being thrown. |
| words = self.val['_M_w'] |
| except: |
| return [] |
| |
| wtype = words.type |
| |
| # The _M_w member can be either an unsigned long, or an |
| # array. This depends on the template specialization used. |
| # If it is a single long, convert to a single element list. |
| if wtype.code == gdb.TYPE_CODE_ARRAY: |
| tsize = wtype.target ().sizeof |
| else: |
| words = [words] |
| tsize = wtype.sizeof |
| |
| nwords = wtype.sizeof / tsize |
| result = [] |
| byte = 0 |
| while byte < nwords: |
| w = words[byte] |
| bit = 0 |
| while w != 0: |
| if (w & 1) != 0: |
| # Another spot where we could use 'set'? |
| result.append(('[%d]' % (byte * tsize * 8 + bit), 1)) |
| bit = bit + 1 |
| w = w >> 1 |
| byte = byte + 1 |
| return result |
| |
| class StdDequePrinter: |
| "Print a std::deque" |
| |
| class _iter(Iterator): |
| 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 = strip_versioned_namespace(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 %s' % (self.typename, num_elements(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): |
| if not self.val['_M_cur']: |
| return 'non-dereferenceable iterator for std::deque' |
| return str(self.val['_M_cur'].dereference()) |
| |
| class StdStringPrinter: |
| "Print a std::basic_string of some kind" |
| |
| def __init__(self, typename, val): |
| self.val = val |
| self.new_string = typename.find("::__cxx11::basic_string") != -1 |
| |
| 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'] |
| if self.new_string: |
| length = self.val['_M_string_length'] |
| # https://sourceware.org/bugzilla/show_bug.cgi?id=17728 |
| ptr = ptr.cast(ptr.type.strip_typedefs()) |
| else: |
| realtype = type.unqualified ().strip_typedefs () |
| reptype = gdb.lookup_type (str (realtype) + '::_Rep').pointer () |
| header = ptr.cast(reptype) - 1 |
| length = header.dereference ()['_M_length'] |
| if hasattr(ptr, "lazy_string"): |
| return ptr.lazy_string (length = length) |
| return ptr.string (length = length) |
| |
| def display_hint (self): |
| return 'string' |
| |
| class Tr1HashtableIterator(Iterator): |
| def __init__ (self, hashtable): |
| self.buckets = hashtable['_M_buckets'] |
| self.bucket = 0 |
| self.bucket_count = hashtable['_M_bucket_count'] |
| self.node_type = find_type(hashtable.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(Iterator): |
| def __init__(self, hashtable): |
| self.node = hashtable['_M_before_begin']['_M_nxt'] |
| valtype = hashtable.type.template_argument(1) |
| cached = hashtable.type.template_argument(9).template_argument(0) |
| node_type = lookup_templ_spec('std::__detail::_Hash_node', str(valtype), |
| 'true' if cached else 'false') |
| self.node_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 std::unordered_set or tr1::unordered_set" |
| |
| def __init__ (self, typename, val): |
| self.typename = strip_versioned_namespace(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): |
| count = self.hashtable()['_M_element_count'] |
| return '%s with %s' % (self.typename, num_elements(count)) |
| |
| @staticmethod |
| def format_count (i): |
| return '[%d]' % i |
| |
| def children (self): |
| counter = imap (self.format_count, itertools.count()) |
| if self.typename.startswith('std::tr1'): |
| return izip (counter, Tr1HashtableIterator (self.hashtable())) |
| return izip (counter, StdHashtableIterator (self.hashtable())) |
| |
| class Tr1UnorderedMapPrinter: |
| "Print a std::unordered_map or tr1::unordered_map" |
| |
| def __init__ (self, typename, val): |
| self.typename = strip_versioned_namespace(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): |
| count = self.hashtable()['_M_element_count'] |
| return '%s with %s' % (self.typename, num_elements(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 = imap (self.format_count, itertools.count()) |
| # Map over the hash table and flatten the result. |
| if self.typename.startswith('std::tr1'): |
| data = self.flatten (imap (self.format_one, Tr1HashtableIterator (self.hashtable()))) |
| # Zip the two iterators together. |
| return izip (counter, data) |
| data = self.flatten (imap (self.format_one, StdHashtableIterator (self.hashtable()))) |
| # Zip the two iterators together. |
| return izip (counter, data) |
| |
| def display_hint (self): |
| return 'map' |
| |
| class StdForwardListPrinter: |
| "Print a std::forward_list" |
| |
| class _iterator(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 = strip_versioned_namespace(typename) |
| |
| def children(self): |
| nodetype = lookup_node_type('_Fwd_list_node', self.val.type).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 |
| |
| class SingleObjContainerPrinter(object): |
| "Base class for printers of containers of single objects" |
| |
| def __init__ (self, val, viz, hint = None): |
| self.contained_value = val |
| self.visualizer = viz |
| self.hint = hint |
| |
| def _recognize(self, type): |
| """Return TYPE as a string after applying type printers""" |
| global _use_type_printing |
| if not _use_type_printing: |
| return str(type) |
| return gdb.types.apply_type_recognizers(gdb.types.get_type_recognizers(), |
| type) or str(type) |
| |
| class _contained(Iterator): |
| def __init__ (self, val): |
| self.val = val |
| |
| def __iter__ (self): |
| return self |
| |
| def __next__(self): |
| if self.val is None: |
| raise StopIteration |
| retval = self.val |
| self.val = None |
| return ('[contained value]', retval) |
| |
| def children (self): |
| if self.contained_value is None: |
| return self._contained (None) |
| if hasattr (self.visualizer, 'children'): |
| return self.visualizer.children () |
| return self._contained (self.contained_value) |
| |
| def display_hint (self): |
| # if contained value is a map we want to display in the same way |
| if hasattr (self.visualizer, 'children') and hasattr (self.visualizer, 'display_hint'): |
| return self.visualizer.display_hint () |
| return self.hint |
| |
| def function_pointer_to_name(f): |
| "Find the name of the function referred to by the gdb.Value f, " |
| " which should contain a function pointer from the program." |
| |
| # Turn the function pointer into an actual address. |
| # This is needed to unpack ppc64 function descriptors. |
| f = f.dereference().address |
| |
| if sys.version_info[0] == 2: |
| # Older versions of GDB need to use long for Python 2, |
| # because int(f) on 64-bit big-endian values raises a |
| # gdb.error saying "Cannot convert value to int." |
| f = long(f) |
| else: |
| f = int(f) |
| |
| try: |
| # If the function can't be found older versions of GDB raise a |
| # RuntimeError saying "Cannot locate object file for block." |
| return gdb.block_for_pc(f).function.name |
| except: |
| return None |
| |
| class StdExpAnyPrinter(SingleObjContainerPrinter): |
| "Print a std::any or std::experimental::any" |
| |
| def __init__ (self, typename, val): |
| self.typename = strip_versioned_namespace(typename) |
| self.typename = re.sub('^std::experimental::fundamentals_v\d::', 'std::experimental::', self.typename, 1) |
| self.val = val |
| self.contained_type = None |
| contained_value = None |
| visualizer = None |
| mgr = self.val['_M_manager'] |
| if mgr != 0: |
| func = function_pointer_to_name(mgr) |
| if not func: |
| raise ValueError("Invalid function pointer in %s" % (self.typename)) |
| rx = r"""({0}::_Manager_\w+<.*>)::_S_manage\((enum )?{0}::_Op, (const {0}|{0} const) ?\*, (union )?{0}::_Arg ?\*\)""".format(typename) |
| m = re.match(rx, func) |
| if not m: |
| raise ValueError("Unknown manager function in %s" % self.typename) |
| |
| mgrname = m.group(1) |
| # FIXME need to expand 'std::string' so that gdb.lookup_type works |
| if 'std::string' in mgrname: |
| mgrname = re.sub("std::string(?!\w)", str(gdb.lookup_type('std::string').strip_typedefs()), m.group(1)) |
| |
| mgrtype = gdb.lookup_type(mgrname) |
| self.contained_type = mgrtype.template_argument(0) |
| valptr = None |
| if '::_Manager_internal' in mgrname: |
| valptr = self.val['_M_storage']['_M_buffer'].address |
| elif '::_Manager_external' in mgrname: |
| valptr = self.val['_M_storage']['_M_ptr'] |
| else: |
| raise ValueError("Unknown manager function in %s" % self.typename) |
| contained_value = valptr.cast(self.contained_type.pointer()).dereference() |
| visualizer = gdb.default_visualizer(contained_value) |
| super(StdExpAnyPrinter, self).__init__ (contained_value, visualizer) |
| |
| def to_string (self): |
| if self.contained_type is None: |
| return '%s [no contained value]' % self.typename |
| desc = "%s containing " % self.typename |
| if hasattr (self.visualizer, 'children'): |
| return desc + self.visualizer.to_string () |
| valtype = self._recognize (self.contained_type) |
| return desc + strip_versioned_namespace(str(valtype)) |
| |
| class StdExpOptionalPrinter(SingleObjContainerPrinter): |
| "Print a std::optional or std::experimental::optional" |
| |
| def __init__ (self, typename, val): |
| valtype = self._recognize (val.type.template_argument(0)) |
| typename = strip_versioned_namespace(typename) |
| self.typename = re.sub('^std::(experimental::|)(fundamentals_v\d::|)(.*)', r'std::\1\3<%s>' % valtype, typename, 1) |
| payload = val['_M_payload'] |
| if self.typename.startswith('std::experimental'): |
| engaged = val['_M_engaged'] |
| contained_value = payload |
| else: |
| engaged = payload['_M_engaged'] |
| contained_value = payload['_M_payload'] |
| try: |
| # Since GCC 9 |
| contained_value = contained_value['_M_value'] |
| except: |
| pass |
| visualizer = gdb.default_visualizer (contained_value) |
| if not engaged: |
| contained_value = None |
| super (StdExpOptionalPrinter, self).__init__ (contained_value, visualizer) |
| |
| def to_string (self): |
| if self.contained_value is None: |
| return "%s [no contained value]" % self.typename |
| if hasattr (self.visualizer, 'children'): |
| return "%s containing %s" % (self.typename, |
| self.visualizer.to_string()) |
| return self.typename |
| |
| class StdVariantPrinter(SingleObjContainerPrinter): |
| "Print a std::variant" |
| |
| def __init__(self, typename, val): |
| alternatives = get_template_arg_list(val.type) |
| self.typename = strip_versioned_namespace(typename) |
| self.typename = "%s<%s>" % (self.typename, ', '.join([self._recognize(alt) for alt in alternatives])) |
| self.index = val['_M_index'] |
| if self.index >= len(alternatives): |
| self.contained_type = None |
| contained_value = None |
| visualizer = None |
| else: |
| self.contained_type = alternatives[int(self.index)] |
| addr = val['_M_u']['_M_first']['_M_storage'].address |
| contained_value = addr.cast(self.contained_type.pointer()).dereference() |
| visualizer = gdb.default_visualizer(contained_value) |
| super (StdVariantPrinter, self).__init__(contained_value, visualizer, 'array') |
| |
| def to_string(self): |
| if self.contained_value is None: |
| return "%s [no contained value]" % self.typename |
| if hasattr(self.visualizer, 'children'): |
| return "%s [index %d] containing %s" % (self.typename, self.index, |
| self.visualizer.to_string()) |
| return "%s [index %d]" % (self.typename, self.index) |
| |
| class StdNodeHandlePrinter(SingleObjContainerPrinter): |
| "Print a container node handle" |
| |
| def __init__(self, typename, val): |
| self.value_type = val.type.template_argument(1) |
| nodetype = val.type.template_argument(2).template_argument(0) |
| self.is_rb_tree_node = is_specialization_of(nodetype.name, '_Rb_tree_node') |
| self.is_map_node = val.type.template_argument(0) != self.value_type |
| nodeptr = val['_M_ptr'] |
| if nodeptr: |
| if self.is_rb_tree_node: |
| contained_value = get_value_from_Rb_tree_node(nodeptr.dereference()) |
| else: |
| contained_value = get_value_from_aligned_membuf(nodeptr['_M_storage'], |
| self.value_type) |
| visualizer = gdb.default_visualizer(contained_value) |
| else: |
| contained_value = None |
| visualizer = None |
| optalloc = val['_M_alloc'] |
| self.alloc = optalloc['_M_payload'] if optalloc['_M_engaged'] else None |
| super(StdNodeHandlePrinter, self).__init__(contained_value, visualizer, |
| 'array') |
| |
| def to_string(self): |
| desc = 'node handle for ' |
| if not self.is_rb_tree_node: |
| desc += 'unordered ' |
| if self.is_map_node: |
| desc += 'map'; |
| else: |
| desc += 'set'; |
| |
| if self.contained_value: |
| desc += ' with element' |
| if hasattr(self.visualizer, 'children'): |
| return "%s = %s" % (desc, self.visualizer.to_string()) |
| return desc |
| else: |
| return 'empty %s' % desc |
| |
| class StdExpStringViewPrinter: |
| "Print a std::basic_string_view or std::experimental::basic_string_view" |
| |
| def __init__ (self, typename, val): |
| self.val = val |
| |
| def to_string (self): |
| ptr = self.val['_M_str'] |
| len = self.val['_M_len'] |
| if hasattr (ptr, "lazy_string"): |
| return ptr.lazy_string (length = len) |
| return ptr.string (length = len) |
| |
| def display_hint (self): |
| return 'string' |
| |
| class StdExpPathPrinter: |
| "Print a std::experimental::filesystem::path" |
| |
| def __init__ (self, typename, val): |
| self.val = val |
| self.typename = typename |
| start = self.val['_M_cmpts']['_M_impl']['_M_start'] |
| finish = self.val['_M_cmpts']['_M_impl']['_M_finish'] |
| self.num_cmpts = int (finish - start) |
| |
| def _path_type(self): |
| t = str(self.val['_M_type']) |
| if t[-9:] == '_Root_dir': |
| return "root-directory" |
| if t[-10:] == '_Root_name': |
| return "root-name" |
| return None |
| |
| def to_string (self): |
| path = "%s" % self.val ['_M_pathname'] |
| if self.num_cmpts == 0: |
| t = self._path_type() |
| if t: |
| path = '%s [%s]' % (path, t) |
| return "experimental::filesystem::path %s" % path |
| |
| class _iterator(Iterator): |
| def __init__(self, cmpts, pathtype): |
| self.pathtype = pathtype |
| self.item = cmpts['_M_impl']['_M_start'] |
| self.finish = cmpts['_M_impl']['_M_finish'] |
| self.count = 0 |
| |
| def __iter__(self): |
| return self |
| |
| def __next__(self): |
| if self.item == self.finish: |
| raise StopIteration |
| item = self.item.dereference() |
| count = self.count |
| self.count = self.count + 1 |
| self.item = self.item + 1 |
| path = item['_M_pathname'] |
| t = StdExpPathPrinter(self.pathtype, item)._path_type() |
| if not t: |
| t = count |
| return ('[%s]' % t, path) |
| |
| def children(self): |
| return self._iterator(self.val['_M_cmpts'], self.typename) |
| |
| class StdPathPrinter: |
| "Print a std::filesystem::path" |
| |
| def __init__ (self, typename, val): |
| self.val = val |
| self.typename = typename |
| impl = self.val['_M_cmpts']['_M_impl']['_M_t']['_M_t']['_M_head_impl'] |
| self.type = impl.cast(gdb.lookup_type('uintptr_t')) & 3 |
| if self.type == 0: |
| self.impl = impl |
| else: |
| self.impl = None |
| |
| def _path_type(self): |
| t = str(self.type.cast(gdb.lookup_type(self.typename + '::_Type'))) |
| if t[-9:] == '_Root_dir': |
| return "root-directory" |
| if t[-10:] == '_Root_name': |
| return "root-name" |
| return None |
| |
| def to_string (self): |
| path = "%s" % self.val ['_M_pathname'] |
| if self.type != 0: |
| t = self._path_type() |
| if t: |
| path = '%s [%s]' % (path, t) |
| return "filesystem::path %s" % path |
| |
| class _iterator(Iterator): |
| def __init__(self, impl, pathtype): |
| self.pathtype = pathtype |
| if impl: |
| # We can't access _Impl::_M_size because _Impl is incomplete |
| # so cast to int* to access the _M_size member at offset zero, |
| int_type = gdb.lookup_type('int') |
| cmpt_type = gdb.lookup_type(pathtype+'::_Cmpt') |
| char_type = gdb.lookup_type('char') |
| impl = impl.cast(int_type.pointer()) |
| size = impl.dereference() |
| #self.capacity = (impl + 1).dereference() |
| if hasattr(gdb.Type, 'alignof'): |
| sizeof_Impl = max(2 * int_type.sizeof, cmpt_type.alignof) |
| else: |
| sizeof_Impl = 2 * int_type.sizeof |
| begin = impl.cast(char_type.pointer()) + sizeof_Impl |
| self.item = begin.cast(cmpt_type.pointer()) |
| self.finish = self.item + size |
| self.count = 0 |
| else: |
| self.item = None |
| self.finish = None |
| |
| def __iter__(self): |
| return self |
| |
| def __next__(self): |
| if self.item == self.finish: |
| raise StopIteration |
| item = self.item.dereference() |
| count = self.count |
| self.count = self.count + 1 |
| self.item = self.item + 1 |
| path = item['_M_pathname'] |
| t = StdPathPrinter(self.pathtype, item)._path_type() |
| if not t: |
| t = count |
| return ('[%s]' % t, path) |
| |
| def children(self): |
| return self._iterator(self.impl, self.typename) |
| |
| |
| class StdPairPrinter: |
| "Print a std::pair object, with 'first' and 'second' as children" |
| |
| def __init__(self, typename, val): |
| self.val = val |
| |
| class _iter(Iterator): |
| "An iterator for std::pair types. Returns 'first' then 'second'." |
| |
| def __init__(self, val): |
| self.val = val |
| self.which = 'first' |
| |
| def __iter__(self): |
| return self |
| |
| def __next__(self): |
| if self.which is None: |
| raise StopIteration |
| which = self.which |
| if which == 'first': |
| self.which = 'second' |
| else: |
| self.which = None |
| return (which, self.val[which]) |
| |
| def children(self): |
| return self._iter(self.val) |
| |
| def to_string(self): |
| return None |
| |
| class StdCmpCatPrinter: |
| "Print a comparison category object" |
| |
| def __init__ (self, typename, val): |
| self.typename = typename[typename.rfind(':')+1:] |
| self.val = val['_M_value'] |
| |
| def to_string (self): |
| if self.typename == 'strong_ordering' and self.val == 0: |
| name = 'equal' |
| else: |
| names = {2:'unordered', -1:'less', 0:'equivalent', 1:'greater'} |
| name = names[int(self.val)] |
| return 'std::{}::{}'.format(self.typename, name) |
| |
| class StdErrorCodePrinter: |
| "Print a std::error_code or std::error_condition" |
| |
| _errno_categories = None # List of categories that use errno values |
| |
| def __init__ (self, typename, val): |
| self.val = val |
| self.typename = typename |
| # Do this only once ... |
| if StdErrorCodePrinter._errno_categories is None: |
| StdErrorCodePrinter._errno_categories = ['generic'] |
| try: |
| import posix |
| StdErrorCodePrinter._errno_categories.append('system') |
| except ImportError: |
| pass |
| |
| @staticmethod |
| def _category_name(cat): |
| "Call the virtual function that overrides std::error_category::name()" |
| gdb.set_convenience_variable('__cat', cat) |
| return gdb.parse_and_eval('$__cat->name()').string() |
| |
| def to_string (self): |
| value = self.val['_M_value'] |
| category = self._category_name(self.val['_M_cat']) |
| strval = str(value) |
| if value == 0: |
| default_cats = {'error_code':'system', 'error_condition':'generic'} |
| unqualified = self.typename.split('::')[-1] |
| if category == default_cats[unqualified]: |
| return self.typename + ' = { }' # default-constructed value |
| if value > 0 and category in StdErrorCodePrinter._errno_categories: |
| try: |
| strval = errno.errorcode[int(value)] |
| except: |
| pass |
| return '%s = {"%s": %s}' % (self.typename, category, strval) |
| |
| # A "regular expression" printer which conforms to the |
| # "SubPrettyPrinter" protocol from gdb.printing. |
| class RxPrinter(object): |
| def __init__(self, name, function): |
| super(RxPrinter, self).__init__() |
| self.name = name |
| self.function = function |
| self.enabled = True |
| |
| def invoke(self, value): |
| if not self.enabled: |
| return None |
| |
| if value.type.code == gdb.TYPE_CODE_REF: |
| if hasattr(gdb.Value,"referenced_value"): |
| value = value.referenced_value() |
| |
| return self.function(self.name, value) |
| |
| # A pretty-printer that conforms to the "PrettyPrinter" protocol from |
| # gdb.printing. It can also be used directly as an old-style printer. |
| class Printer(object): |
| def __init__(self, name): |
| super(Printer, self).__init__() |
| self.name = name |
| self.subprinters = [] |
| self.lookup = {} |
| self.enabled = True |
| self.compiled_rx = re.compile('^([a-zA-Z0-9_:]+)(<.*>)?$') |
| |
| 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) |
| if _versioned_namespace: |
| vbase = re.sub('^(std|__gnu_cxx)::', r'\g<0>%s' % _versioned_namespace, base) |
| self.add(vbase + 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 TemplateTypePrinter(object): |
| r""" |
| A type printer for class templates with default template arguments. |
| |
| Recognizes specializations of class templates and prints them without |
| any template arguments that use a default template argument. |
| Type printers are recursively applied to the template arguments. |
| |
| e.g. replace "std::vector<T, std::allocator<T> >" with "std::vector<T>". |
| """ |
| |
| def __init__(self, name, defargs): |
| self.name = name |
| self.defargs = defargs |
| self.enabled = True |
| |
| class _recognizer(object): |
| "The recognizer class for TemplateTypePrinter." |
| |
| def __init__(self, name, defargs): |
| self.name = name |
| self.defargs = defargs |
| # self.type_obj = None |
| |
| def recognize(self, type_obj): |
| """ |
| If type_obj is a specialization of self.name that uses all the |
| default template arguments for the class template, then return |
| a string representation of the type without default arguments. |
| Otherwise, return None. |
| """ |
| |
| if type_obj.tag is None: |
| return None |
| |
| if not type_obj.tag.startswith(self.name): |
| return None |
| |
| template_args = get_template_arg_list(type_obj) |
| displayed_args = [] |
| require_defaulted = False |
| for n in range(len(template_args)): |
| # The actual template argument in the type: |
| targ = template_args[n] |
| # The default template argument for the class template: |
| defarg = self.defargs.get(n) |
| if defarg is not None: |
| # Substitute other template arguments into the default: |
| defarg = defarg.format(*template_args) |
| # Fail to recognize the type (by returning None) |
| # unless the actual argument is the same as the default. |
| try: |
| if targ != gdb.lookup_type(defarg): |
| return None |
| except gdb.error: |
| # Type lookup failed, just use string comparison: |
| if targ.tag != defarg: |
| return None |
| # All subsequent args must have defaults: |
| require_defaulted = True |
| elif require_defaulted: |
| return None |
| else: |
| # Recursively apply recognizers to the template argument |
| # and add it to the arguments that will be displayed: |
| displayed_args.append(self._recognize_subtype(targ)) |
| |
| # This assumes no class templates in the nested-name-specifier: |
| template_name = type_obj.tag[0:type_obj.tag.find('<')] |
| template_name = strip_inline_namespaces(template_name) |
| |
| return template_name + '<' + ', '.join(displayed_args) + '>' |
| |
| def _recognize_subtype(self, type_obj): |
| """Convert a gdb.Type to a string by applying recognizers, |
| or if that fails then simply converting to a string.""" |
| |
| if type_obj.code == gdb.TYPE_CODE_PTR: |
| return self._recognize_subtype(type_obj.target()) + '*' |
| if type_obj.code == gdb.TYPE_CODE_ARRAY: |
| type_str = self._recognize_subtype(type_obj.target()) |
| if str(type_obj.strip_typedefs()).endswith('[]'): |
| return type_str + '[]' # array of unknown bound |
| return "%s[%d]" % (type_str, type_obj.range()[1] + 1) |
| if type_obj.code == gdb.TYPE_CODE_REF: |
| return self._recognize_subtype(type_obj.target()) + '&' |
| if hasattr(gdb, 'TYPE_CODE_RVALUE_REF'): |
| if type_obj.code == gdb.TYPE_CODE_RVALUE_REF: |
| return self._recognize_subtype(type_obj.target()) + '&&' |
| |
| type_str = gdb.types.apply_type_recognizers( |
| gdb.types.get_type_recognizers(), type_obj) |
| if type_str: |
| return type_str |
| return str(type_obj) |
| |
| def instantiate(self): |
| "Return a recognizer object for this type printer." |
| return self._recognizer(self.name, self.defargs) |
| |
| def add_one_template_type_printer(obj, name, defargs): |
| r""" |
| Add a type printer for a class template with default template arguments. |
| |
| Args: |
| name (str): The template-name of the class template. |
| defargs (dict int:string) The default template arguments. |
| |
| Types in defargs can refer to the Nth template-argument using {N} |
| (with zero-based indices). |
| |
| e.g. 'unordered_map' has these defargs: |
| { 2: 'std::hash<{0}>', |
| 3: 'std::equal_to<{0}>', |
| 4: 'std::allocator<std::pair<const {0}, {1}> >' } |
| |
| """ |
| printer = TemplateTypePrinter('std::'+name, defargs) |
| gdb.types.register_type_printer(obj, printer) |
| |
| # Add type printer for same type in debug namespace: |
| printer = TemplateTypePrinter('std::__debug::'+name, defargs) |
| gdb.types.register_type_printer(obj, printer) |
| |
| if _versioned_namespace: |
| # Add second type printer for same type in versioned namespace: |
| ns = 'std::' + _versioned_namespace |
| # PR 86112 Cannot use dict comprehension here: |
| defargs = dict((n, d.replace('std::', ns)) for (n,d) in defargs.items()) |
| printer = TemplateTypePrinter(ns+name, defargs) |
| gdb.types.register_type_printer(obj, printer) |
| |
| class FilteringTypePrinter(object): |
| r""" |
| A type printer that uses typedef names for common template specializations. |
| |
| Args: |
| match (str): The class template to recognize. |
| name (str): The typedef-name that will be used instead. |
| |
| Checks if a specialization of the class template 'match' is the same type |
| as the typedef 'name', and prints it as 'name' instead. |
| |
| e.g. if an instantiation of std::basic_istream<C, T> is the same type as |
| std::istream then print it as std::istream. |
| """ |
| |
| def __init__(self, match, name): |
| self.match = match |
| self.name = name |
| self.enabled = True |
| |
| class _recognizer(object): |
| "The recognizer class for TemplateTypePrinter." |
| |
| def __init__(self, match, name): |
| self.match = match |
| self.name = name |
| self.type_obj = None |
| |
| def recognize(self, type_obj): |
| """ |
| If type_obj starts with self.match and is the same type as |
| self.name then return self.name, otherwise None. |
| """ |
| if type_obj.tag is None: |
| return None |
| |
| if self.type_obj is None: |
| if not type_obj.tag.startswith(self.match): |
| # 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 strip_inline_namespaces(self.name) |
| return None |
| |
| def instantiate(self): |
| "Return a recognizer object for this type printer." |
| return self._recognizer(self.match, self.name) |
| |
| def add_one_type_printer(obj, match, name): |
| printer = FilteringTypePrinter('std::' + match, 'std::' + name) |
| gdb.types.register_type_printer(obj, printer) |
| if _versioned_namespace: |
| ns = 'std::' + _versioned_namespace |
| printer = FilteringTypePrinter(ns + match, ns + name) |
| gdb.types.register_type_printer(obj, printer) |
| |
| def register_type_printers(obj): |
| global _use_type_printing |
| |
| if not _use_type_printing: |
| return |
| |
| # Add type printers for typedefs std::string, std::wstring etc. |
| for ch in ('', 'w', 'u8', 'u16', 'u32'): |
| add_one_type_printer(obj, 'basic_string', ch + 'string') |
| add_one_type_printer(obj, '__cxx11::basic_string', ch + 'string') |
| # Typedefs for __cxx11::basic_string used to be in namespace __cxx11: |
| add_one_type_printer(obj, '__cxx11::basic_string', |
| '__cxx11::' + ch + 'string') |
| add_one_type_printer(obj, 'basic_string_view', ch + 'string_view') |
| |
| # Add type printers for typedefs std::istream, std::wistream etc. |
| for ch in ('', 'w'): |
| for x in ('ios', 'streambuf', 'istream', 'ostream', 'iostream', |
| 'filebuf', 'ifstream', 'ofstream', 'fstream'): |
| add_one_type_printer(obj, 'basic_' + x, ch + x) |
| for x in ('stringbuf', 'istringstream', 'ostringstream', |
| 'stringstream'): |
| add_one_type_printer(obj, 'basic_' + x, ch + x) |
| # <sstream> types are in __cxx11 namespace, but typedefs aren't: |
| add_one_type_printer(obj, '__cxx11::basic_' + x, ch + x) |
| |
| # Add type printers for typedefs regex, wregex, cmatch, wcmatch etc. |
| for abi in ('', '__cxx11::'): |
| for ch in ('', 'w'): |
| add_one_type_printer(obj, abi + 'basic_regex', abi + ch + 'regex') |
| for ch in ('c', 's', 'wc', 'ws'): |
| add_one_type_printer(obj, abi + 'match_results', abi + ch + 'match') |
| for x in ('sub_match', 'regex_iterator', 'regex_token_iterator'): |
| add_one_type_printer(obj, abi + x, abi + ch + x) |
| |
| # Note that we can't have a printer for std::wstreampos, because |
| # it is the same type as std::streampos. |
| add_one_type_printer(obj, 'fpos', 'streampos') |
| |
| # Add type printers for <chrono> typedefs. |
| for dur in ('nanoseconds', 'microseconds', 'milliseconds', |
| 'seconds', 'minutes', 'hours'): |
| add_one_type_printer(obj, 'duration', dur) |
| |
| # Add type printers for <random> typedefs. |
| 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') |
| |
| # Add type printers for experimental::basic_string_view typedefs. |
| ns = 'experimental::fundamentals_v1::' |
| for ch in ('', 'w', 'u8', 'u16', 'u32'): |
| add_one_type_printer(obj, ns + 'basic_string_view', |
| ns + ch + 'string_view') |
| |
| # Do not show defaulted template arguments in class templates. |
| add_one_template_type_printer(obj, 'unique_ptr', |
| { 1: 'std::default_delete<{0}>' }) |
| add_one_template_type_printer(obj, 'deque', { 1: 'std::allocator<{0}>'}) |
| add_one_template_type_printer(obj, 'forward_list', { 1: 'std::allocator<{0}>'}) |
| add_one_template_type_printer(obj, 'list', { 1: 'std::allocator<{0}>'}) |
| add_one_template_type_printer(obj, '__cxx11::list', { 1: 'std::allocator<{0}>'}) |
| add_one_template_type_printer(obj, 'vector', { 1: 'std::allocator<{0}>'}) |
| add_one_template_type_printer(obj, 'map', |
| { 2: 'std::less<{0}>', |
| 3: 'std::allocator<std::pair<{0} const, {1}>>' }) |
| add_one_template_type_printer(obj, 'multimap', |
| { 2: 'std::less<{0}>', |
| 3: 'std::allocator<std::pair<{0} const, {1}>>' }) |
| add_one_template_type_printer(obj, 'set', |
| { 1: 'std::less<{0}>', 2: 'std::allocator<{0}>' }) |
| add_one_template_type_printer(obj, 'multiset', |
| { 1: 'std::less<{0}>', 2: 'std::allocator<{0}>' }) |
| add_one_template_type_printer(obj, 'unordered_map', |
| { 2: 'std::hash<{0}>', |
| 3: 'std::equal_to<{0}>', |
| 4: 'std::allocator<std::pair<{0} const, {1}>>'}) |
| add_one_template_type_printer(obj, 'unordered_multimap', |
| { 2: 'std::hash<{0}>', |
| 3: 'std::equal_to<{0}>', |
| 4: 'std::allocator<std::pair<{0} const, {1}>>'}) |
| add_one_template_type_printer(obj, 'unordered_set', |
| { 1: 'std::hash<{0}>', |
| 2: 'std::equal_to<{0}>', |
| 3: 'std::allocator<{0}>'}) |
| add_one_template_type_printer(obj, 'unordered_multiset', |
| { 1: 'std::hash<{0}>', |
| 2: 'std::equal_to<{0}>', |
| 3: 'std::allocator<{0}>'}) |
| |
| 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") |
| |
| # 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_version('std::__cxx11::', 'basic_string', StdStringPrinter) |
| libstdcxx_printer.add_container('std::', 'bitset', StdBitsetPrinter) |
| libstdcxx_printer.add_container('std::', 'deque', StdDequePrinter) |
| libstdcxx_printer.add_version('std::', 'error_code', StdErrorCodePrinter) |
| libstdcxx_printer.add_version('std::', 'error_condition', StdErrorCodePrinter) |
| libstdcxx_printer.add_container('std::', 'list', StdListPrinter) |
| libstdcxx_printer.add_container('std::__cxx11::', '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::', 'pair', StdPairPrinter) |
| 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) |
| libstdcxx_printer.add('std::__debug::multimap', StdMapPrinter) |
| libstdcxx_printer.add('std::__debug::multiset', StdSetPrinter) |
| libstdcxx_printer.add('std::__debug::priority_queue', |
| StdStackOrQueuePrinter) |
| libstdcxx_printer.add('std::__debug::queue', StdStackOrQueuePrinter) |
| libstdcxx_printer.add('std::__debug::set', StdSetPrinter) |
| libstdcxx_printer.add('std::__debug::stack', StdStackOrQueuePrinter) |
| libstdcxx_printer.add('std::__debug::unique_ptr', UniquePointerPrinter) |
| libstdcxx_printer.add('std::__debug::vector', StdVectorPrinter) |
| |
| # These are the TR1 and C++11 printers. |
| # For array - the default GDB pretty-printer seems reasonable. |
| libstdcxx_printer.add_version('std::', 'shared_ptr', SharedPointerPrinter) |
| 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++11 printer registrations for -D_GLIBCXX_DEBUG cases. |
| # The tr1 namespace containers do not have any debug equivalents, |
| # so do not register printers for 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) |
| |
| # Library Fundamentals TS components |
| libstdcxx_printer.add_version('std::experimental::fundamentals_v1::', |
| 'any', StdExpAnyPrinter) |
| libstdcxx_printer.add_version('std::experimental::fundamentals_v1::', |
| 'optional', StdExpOptionalPrinter) |
| libstdcxx_printer.add_version('std::experimental::fundamentals_v1::', |
| 'basic_string_view', StdExpStringViewPrinter) |
| # Filesystem TS components |
| libstdcxx_printer.add_version('std::experimental::filesystem::v1::', |
| 'path', StdExpPathPrinter) |
| libstdcxx_printer.add_version('std::experimental::filesystem::v1::__cxx11::', |
| 'path', StdExpPathPrinter) |
| libstdcxx_printer.add_version('std::filesystem::', |
| 'path', StdPathPrinter) |
| libstdcxx_printer.add_version('std::filesystem::__cxx11::', |
| 'path', StdPathPrinter) |
| |
| # C++17 components |
| libstdcxx_printer.add_version('std::', |
| 'any', StdExpAnyPrinter) |
| libstdcxx_printer.add_version('std::', |
| 'optional', StdExpOptionalPrinter) |
| libstdcxx_printer.add_version('std::', |
| 'basic_string_view', StdExpStringViewPrinter) |
| libstdcxx_printer.add_version('std::', |
| 'variant', StdVariantPrinter) |
| libstdcxx_printer.add_version('std::', |
| '_Node_handle', StdNodeHandlePrinter) |
| |
| # C++20 components |
| libstdcxx_printer.add_version('std::', 'partial_ordering', StdCmpCatPrinter) |
| libstdcxx_printer.add_version('std::', 'weak_ordering', StdCmpCatPrinter) |
| libstdcxx_printer.add_version('std::', 'strong_ordering', StdCmpCatPrinter) |
| |
| # 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_container('std::', '_Bit_iterator', |
| StdBitIteratorPrinter) |
| libstdcxx_printer.add_container('std::', '_Bit_const_iterator', |
| StdBitIteratorPrinter) |
| libstdcxx_printer.add_container('std::', '_Bit_reference', |
| StdBitReferencePrinter) |
| libstdcxx_printer.add_version('__gnu_cxx::', '_Slist_iterator', |
| StdSlistIteratorPrinter) |
| libstdcxx_printer.add_container('std::', '_Fwd_list_iterator', |
| StdFwdListIteratorPrinter) |
| libstdcxx_printer.add_container('std::', '_Fwd_list_const_iterator', |
| StdFwdListIteratorPrinter) |
| |
| # Debug (compiled with -D_GLIBCXX_DEBUG) printer |
| # registrations. |
| libstdcxx_printer.add('__gnu_debug::_Safe_iterator', |
| StdDebugIteratorPrinter) |
| |
| build_libstdcxx_dictionary () |
