050219d998
Conflicts: .project COPYRIGHT Doc/Manual/style.css Examples/Makefile.in Examples/test-suite/common.mk Lib/typemaps/strings.swg Makefile.in Source/DOH/fio.c Source/Makefile.am Source/Modules/emit.cxx Source/Modules/javascript.cxx configure.in git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/branches/oliverb-javascript-v8@13764 626c5289-ae23-0410-ae9c-e8d60b6d4f22
574 lines
15 KiB
Python
Executable file
574 lines
15 KiB
Python
Executable file
import gdb
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import gdb.types
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import itertools
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import re
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log_file = None
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GDB_FLATTENED_CHILDREN_WORKAROUND = False
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CHILDREN_MAX_RECURSION_LEVEL = 0
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# workaround: don't cast the following DOHs to it's actual type
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# to avoid infinite pretty-print loops
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cast_black_list = {
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'Hash': set(['parentNode', 'symtab', 'csymtab', 'sym:symtab', 'inherit', 'nextSibling', 'previousSibling'])
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}
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def print_(msg):
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global log_file;
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if True:
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if log_file == None:
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log_file = open('swig_gdb.log', 'w')
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log_file.write(msg)
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print(msg)
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class SwigStringPrinter:
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"""
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Pretty print Swig String* types.
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"""
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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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try:
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self.t_swigstr_ptr = gdb.lookup_type("struct String").pointer()
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self.t_doh_base_ptr = gdb.lookup_type("DohBase").pointer()
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except Exception as err:
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print_("SwigStringPrinter: Could not retrieve gdb types.\n %s.\n"%(str(err)))
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def display_hint(self):
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return 'string'
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def to_string(self):
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ret = "<invalid>"
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# Conversion taken from Swig Internals manual:
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# http://peregrine.hpc.uwm.edu/Head-node-docs/swig/2.0.4/Devel/internals.html#7
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# (*(struct String *)(((DohBase *)s)->data)).str
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dohbase = None;
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str_data = None;
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char_ptr = None;
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try:
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dohbase = self.val.reinterpret_cast(self.t_doh_base_ptr).dereference()
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except Exception as err:
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print_("SwigStringPrinter: Could not dereference DOHBase*\n");
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return "<invalid>";
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try:
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str_data = dohbase['data'].reinterpret_cast(self.t_swigstr_ptr).dereference()
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except Exception as err:
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print_("SwigStringPrinter: Could not dereference struct String*\n");
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return "<invalid>";
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try:
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char_ptr = str_data['str']
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except Exception as err:
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print_("SwigStringPrinter: Could not access field (struct String).str\n");
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return "<invalid>";
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if char_ptr.is_lazy is True:
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char_ptr.fetch_lazy ()
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try:
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ret = char_ptr.string()
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except Exception as err:
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print_("SwigStringPrinter: Could not convert const char* to string\n");
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return "<invalid>";
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return ret
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class SwigIterator:
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def __init__(self):
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self.t_doh_base_ptr = gdb.lookup_type("DohBase").pointer()
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self.t_string_ptr = gdb.lookup_type("String").pointer()
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self.t_node_ptr = gdb.lookup_type("Node").pointer()
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self.t_hash_ptr = gdb.lookup_type("Hash").pointer()
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self.t_file_ptr = gdb.lookup_type("File").pointer()
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self.t_void_ptr = gdb.lookup_type("void").pointer()
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def cast_doh(self, doh, name = None):
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if doh == 0:
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return doh
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doh = doh.reinterpret_cast(self.t_doh_base_ptr);
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val_base = doh.dereference()
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val_type = val_base['type'].dereference()
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val_typestr = val_type['objname'].string()
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if not name == None and val_typestr in cast_black_list:
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blacklist = cast_black_list[val_typestr]
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if name in blacklist:
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return doh
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if "String" == val_typestr:
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doh = doh.reinterpret_cast(self.t_string_ptr)
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elif "File" == val_typestr:
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doh = doh.reinterpret_cast(self.t_file_ptr)
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# BUG: GDB Pyhton can not handle cyclic references yet
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# so these casts are deactivated
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elif "Hash" == val_typestr:
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doh = doh.reinterpret_cast(self.t_hash_ptr)
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elif "Node" == val_typestr:
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doh = doh.reinterpret_cast(self.t_node_ptr)
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return doh
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class SwigListIterator(SwigIterator):
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def __init__(self, val):
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SwigIterator.__init__(self);
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try:
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self.valid = False
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self.val = val.reinterpret_cast(self.t_doh_base_ptr)
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val_base = self.val.dereference()
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val_type = val_base['type'].dereference()
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val_typestr = val_type['objname'].string()
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#print_("SwigListIterator: constructing iterator for value of type %s"%val_typestr)
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self.t_struct_list_ptr = gdb.lookup_type("struct List").pointer()
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doh_base = self.val.dereference()
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self.l = doh_base['data'].reinterpret_cast(self.t_struct_list_ptr).dereference()
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self.address = 0
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self._index = 0
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self.key = 0
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self.item = 0
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self.address = self.val.dereference().address
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self.is_first = True
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self.valid = True
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except Exception as err:
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print_("SwigListIterator: Construction failed.\n %s.\n"%(str(err)))
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def __iter__(self):
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return self
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def List_first(self):
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self.object = None;
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self._index = 0
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self.key = 0
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self.nitems = int(self.l['nitems'])
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self.items = self.l['items']
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if self.nitems > 0:
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self.item = self.items[0]
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else:
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self.stop()
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def List_next(self):
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self._index = self._index + 1
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if self._index >= self.nitems:
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self.stop()
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else:
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self.item = self.items[self._index]
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def next(self):
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if not self.valid:
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self.stop()
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if self.is_first:
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self.is_first = False
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try:
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self.List_first()
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except StopIteration:
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raise StopIteration
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except Exception as err:
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print_("Error during iteration to first node: \n %s \n" %(str(err)))
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self.stop()
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else:
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try:
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self.List_next()
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except StopIteration:
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raise StopIteration
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except Exception as err:
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print_("Error during iteration to first node: \n %s \n" %(str(err)))
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self.stop()
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key_str = "[%d]"%self._index
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item = 0
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try:
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item = self.cast_doh(self.item)
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except Exception as err:
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print_("SwigListIterator(%s): Exception during casting of value doh:\n %s\n" % (str(self.address), str(err)) )
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self.stop()
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return (key_str, item)
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def stop(self):
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self.is_first = True
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self.item = 0
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self.key = 0
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raise StopIteration
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class SwigHashIterator(SwigIterator):
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def __init__(self, val):
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SwigIterator.__init__(self);
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try:
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self.valid = False
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self.val = val.reinterpret_cast(self.t_doh_base_ptr)
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self.t_struct_hash_ptr = gdb.lookup_type("struct Hash").pointer()
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self.t_struct_hash_node_ptr = gdb.lookup_type("struct HashNode").pointer()
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doh_base = self.val.dereference()
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hash_ = doh_base['data'].reinterpret_cast(self.t_struct_hash_ptr).dereference()
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self.hashtable = hash_['hashtable']
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self.hashsize = int(hash_['hashsize'])
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self.nitems = int(hash_['nitems'])
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self.next_ = 0
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self.address = 0
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self.pos = 0;
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self._current = 0
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self.item = 0
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self.key = 0
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self._index = 0
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self.address = self.val.dereference().address
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self.is_first = True
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self.valid = True
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except Exception as err:
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print_("SwigHashIterator: Construction failed.\n %s.\n"%(str(err)))
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def __iter__(self):
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return self
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def Hash_firstiter(self):
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self._current = 0;
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self.item = 0;
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self.key = 0;
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self._index = 0;
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while (self._index < self.hashsize) and (self.hashtable[self._index] == 0):
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self._index = self._index+1;
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if self._index >= self.hashsize:
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self.stop();
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self._current = self.hashtable[self._index]
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self._current = self._current.reinterpret_cast(self.t_struct_hash_node_ptr);
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self.item = self._current['object'];
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self.key = self._current['key'];
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self._current = self._current['next'];
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def Hash_nextiter(self):
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if self._current == 0:
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self._index = self._index + 1
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while (self._index < self.hashsize) and (self.hashtable[self._index] == 0):
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self._index = self._index + 1
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if self._index >= self.hashsize:
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self.item = 0;
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self.key = 0;
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self._current = 0;
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self.stop()
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self._current = self.hashtable[self._index];
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self._current = self._current.reinterpret_cast(self.t_struct_hash_node_ptr);
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self.key = self._current['key'];
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self.item = self._current['object'];
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self._current = self._current['next'];
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def next(self):
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if not self.valid:
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self.stop()
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if self.is_first:
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self.is_first = False
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try:
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self.Hash_firstiter()
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except StopIteration:
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raise StopIteration
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except Exception as err:
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print_("Error during iteration to first node: \n %s \n" %(str(err)))
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self.stop()
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else:
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try:
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self.Hash_nextiter()
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except StopIteration:
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raise StopIteration
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except Exception as err:
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print_("Error during iteration to first node: \n %s \n" %(str(err)))
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self.stop()
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key_str = "<err>"
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item = 0
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try:
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string_printer = SwigStringPrinter("String *", self.key)
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key_str = string_printer.to_string()
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except Exception as err:
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print_("SwigHashIterator(%s): Exception during extracting key string:\n %s\n" % (str(self.address), str(err)) )
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self.stop()
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try:
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item = self.cast_doh(self.item, key_str)
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except Exception as err:
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print_("SwigHashIterator(%s): Exception during casting of value doh:\n %s\n" % (str(self.address), str(err)) )
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self.stop()
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return (key_str, item)
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def stop(self):
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self.is_first = True
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raise StopIteration
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class AlternateKeyValueIterator():
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def __init__(self, iterable):
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self.it = iterable.__iter__()
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self._next = None
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self.count = -1
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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._next == None:
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key, value = self.it.next()
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self._next = value
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self.count = self.count + 1
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return ("[%d]"%self.count, key)
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else:
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value = self._next
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self._next = None
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return ("[%d]"%self.count, value)
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class NopIterator:
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def __init__(self):
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pass
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def __iter__(self):
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return self
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def next(self):
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raise StopIteration
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class SwigListPrinter:
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"""
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Pretty print Swig List* types (also ParmList*).
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"""
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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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it = SwigListIterator(val)
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self.valid = it.valid
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self.address = it.address
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def display_hint(self):
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return 'array'
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def to_string(self):
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return "%s(%s)" % (str(self.typename), str(self.address))
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def children(self):
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if not self.valid:
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print_("SwigListPrinter: Invalid state.\n")
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return NopIterator()
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try:
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it = SwigListIterator(self.val)
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return it
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except Exception as err:
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print_("SwigListPrinter: Error during creation of children iterator. \n %s \n" %(str(err)))
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raise err
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class SwigHashPrinter:
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"""
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Pretty print Swig Hash* types (also Node*).
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"""
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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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it = SwigHashIterator(val)
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self.valid = it.valid
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self.address = it.address
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self.level = 0;
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def display_hint(self):
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return 'map'
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def to_string(self):
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return "%s(%s)" % (str(self.typename), str(self.address))
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def children(self):
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global GDB_FLATTENED_CHILDREN_WORKAROUND
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global CHILDREN_MAX_RECURSION_LEVEL
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if not self.valid:
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print_("SwigHashPrinter: Invalid state.\n")
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return NopIterator()
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if self.level > CHILDREN_MAX_RECURSION_LEVEL:
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return NopIterator()
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try:
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it = SwigHashIterator(self.val)
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if GDB_FLATTENED_CHILDREN_WORKAROUND:
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return AlternateKeyValueIterator(it)
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return it
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except Exception as err:
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print_("SwigHashPrinter: Error during creation of children iterator. \n %s \n" %(str(err)))
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raise err
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class SwigSimplePrinter:
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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 display_hint(self):
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return "string"
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def to_string(self):
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return "%s(%s)"%(self.typename, str(self.val.address))
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class SwigDelegatingPrinter:
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def __init__ (self, typename, val):
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t_doh_base_ptr = gdb.lookup_type("DohBase").pointer()
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val_base = val.reinterpret_cast(t_doh_base_ptr).dereference()
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val_type = val_base['type'].dereference()
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val_typestr = val_type['objname'].string()
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self.has_children = False
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if val_typestr == "Hash":
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self.delegate = SwigHashPrinter(typename, val)
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self.has_children = True
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elif val_typestr == "List":
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self.delegate = SwigListPrinter(typename, val)
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self.has_children = True
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elif val_typestr == "String":
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self.delegate = SwigStringPrinter(typename, val)
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else:
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self.delegate = SwigSimplePrinter(typename, val)
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def display_hint(self):
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return self.delegate.display_hint()
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def to_string(self):
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return self.delegate.to_string()
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def children(self):
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if not self.has_children:
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return NopIterator()
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return self.delegate.children()
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class RxPrinter(object):
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def __init__(self, name, function):
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super(RxPrinter, self).__init__()
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self.name = name
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self.function = function
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self.enabled = True
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def invoke(self, value):
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if not self.enabled:
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return None
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return self.function(self.name, value)
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# A pretty-printer that conforms to the "PrettyPrinter" protocol from
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# gdb.printing. It can also be used directly as an old-style printer.
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class Printer(object):
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def __init__(self, name):
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super(Printer, self).__init__()
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self.name = name
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self.subprinters = []
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self.lookup = {}
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self.enabled = True
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self.compiled_rx = re.compile('^([a-zA-Z0-9_: *]+)$')
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def add(self, name, function):
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if not self.compiled_rx.match(name):
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raise ValueError, 'error: "%s" does not match' % name
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printer = RxPrinter(name, function)
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self.subprinters.append(printer)
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self.lookup[name] = printer
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print('Added pretty printer for %s. ' % (name))
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def __call__(self, val):
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typename = str(val.type)
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if typename in self.lookup:
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ret = self.lookup[typename].invoke(val)
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return ret
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# Cannot find a pretty printer. Return None.
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return None
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swig_printer = None
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def register_swig_printers(obj):
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global swig_printer
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if obj is None:
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obj = gdb
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obj.pretty_printers.append(swig_printer)
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def build_swig_printer():
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global swig_printer
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swig_printer = Printer("swig")
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swig_printer.add('String *', SwigStringPrinter)
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swig_printer.add('const String *', SwigStringPrinter)
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swig_printer.add('SwigType *', SwigStringPrinter)
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swig_printer.add('Hash *', SwigHashPrinter)
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swig_printer.add('const Hash *', SwigHashPrinter)
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swig_printer.add('Node *', SwigHashPrinter)
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swig_printer.add('const Node *', SwigHashPrinter)
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swig_printer.add('Parm *', SwigHashPrinter)
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swig_printer.add('const Parm *', SwigHashPrinter)
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swig_printer.add('List *', SwigListPrinter)
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swig_printer.add('const List *', SwigListPrinter)
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swig_printer.add('ParmList *', SwigDelegatingPrinter)
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swig_printer.add('const ParmList *', SwigDelegatingPrinter)
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swig_printer.add('File *', SwigDelegatingPrinter)
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#swig_printer.add('DOH *', SwigDelegatingPrinter)
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#swig_printer.add('const DOH *', SwigDelegatingPrinter)
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print_("Loaded swig printers\n");
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def enableGdbPrintWorkaround():
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global GDB_FLATTENED_CHILDREN_WORKAROUND
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GDB_FLATTENED_CHILDREN_WORKAROUND = True
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def setChildrenRecursionLevel(level):
|
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global CHILDREN_MAX_RECURSION_LEVEL
|
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CHILDREN_MAX_RECURSION_LEVEL = level
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build_swig_printer()
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