# Wrapper API for frames.
# Copyright (C) 2008, 2009 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
# FIXME: arguably all this should be on Frame somehow.
class FrameWrapper:
def __init__ (self, frame):
self.frame = frame;
def write_symbol (self, stream, sym, block):
if len (sym.linkage_name):
nsym, is_field_of_this = gdb.lookup_symbol (sym.linkage_name, block)
if nsym.addr_class != gdb.SYMBOL_LOC_REGISTER:
sym = nsym
stream.write (sym.print_name + "=")
try:
val = self.read_var (sym)
if val != None:
val = str (val)
# FIXME: would be nice to have a more precise exception here.
except RuntimeError, text:
val = text
if val == None:
stream.write ("???")
else:
stream.write (str (val))
def print_frame_locals (self, stream, func):
if not func:
return
first = True
block = func.value
for sym in block:
if sym.is_argument:
continue;
self.write_symbol (stream, sym, block)
stream.write ('\n')
def print_frame_args (self, stream, func):
if not func:
return
first = True
block = func.value
for sym in block:
if not sym.is_argument:
continue;
if not first:
stream.write (", ")
self.write_symbol (stream, sym, block)
first = False
# FIXME: this should probably just be a method on gdb.Frame.
# But then we need stream wrappers.
def describe (self, stream, full):
if self.type () == gdb.DUMMY_FRAME:
stream.write (" <function called from gdb>\n")
elif self.type () == gdb.SIGTRAMP_FRAME:
stream.write (" <signal handler called>\n")
else:
sal = self.find_sal ()
pc = self.pc ()
name = self.name ()
if not name:
name = "??"
if pc != sal.pc or not sal.symtab:
stream.write (" 0x%08x in" % pc)
stream.write (" " + name + " (")
func = self.function ()
self.print_frame_args (stream, func)
stream.write (")")
if sal.symtab and sal.symtab.filename:
stream.write (" at " + sal.symtab.filename)
stream.write (":" + str (sal.line))
if not self.name () or (not sal.symtab or not sal.symtab.filename):
lib = gdb.solib_address (pc)
if lib:
stream.write (" from " + lib)
stream.write ("\n")
if full:
self.print_frame_locals (stream, func)
def __getattr__ (self, name):
return getattr (self.frame, name)
y~or5J ={Eeu磝Qk ᯘG{?+]ן?wM3X^歌>{7پK>on\jy R g/=fOroNVv~Y+ NGuÝHWyw[eQʨSb> >}Gmx[o[<{Ϯ_qF vM IENDB`
