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>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.
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>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
PK ! &tɘ( ˜( python/gdb/FrameDecorator.pynu „[µü¤ # Copyright (C) 2013-2018 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 .
import gdb
# This small code snippet deals with problem of strings in Python 2.x
# and Python 3.x. Python 2.x has str and unicode classes which are
# sub-classes of basestring. In Python 3.x all strings are encoded
# and basestring has been removed.
try:
basestring
except NameError:
basestring = str
class FrameDecorator(object):
"""Basic implementation of a Frame Decorator"""
""" This base frame decorator decorates a frame or another frame
decorator, and provides convenience methods. If this object is
wrapping a frame decorator, defer to that wrapped object's method
if it has one. This allows for frame decorators that have
sub-classed FrameDecorator object, but also wrap other frame
decorators on the same frame to correctly execute.
E.g
If the result of frame filters running means we have one gdb.Frame
wrapped by multiple frame decorators, all sub-classed from
FrameDecorator, the resulting hierarchy will be:
Decorator1
-- (wraps) Decorator2
-- (wraps) FrameDecorator
-- (wraps) gdb.Frame
In this case we have two frame decorators, both of which are
sub-classed from FrameDecorator. If Decorator1 just overrides the
'function' method, then all of the other methods are carried out
by the super-class FrameDecorator. But Decorator2 may have
overriden other methods, so FrameDecorator will look at the
'base' parameter and defer to that class's methods. And so on,
down the chain."""
# 'base' can refer to a gdb.Frame or another frame decorator. In
# the latter case, the child class will have called the super
# method and _base will be an object conforming to the Frame Filter
# class.
def __init__(self, base):
self._base = base
@staticmethod
def _is_limited_frame(frame):
"""Internal utility to determine if the frame is special or
limited."""
sal = frame.find_sal()
if (not sal.symtab or not sal.symtab.filename
or frame.type() == gdb.DUMMY_FRAME
or frame.type() == gdb.SIGTRAMP_FRAME):
return True
return False
def elided(self):
"""Return any elided frames that this class might be
wrapping, or None."""
if hasattr(self._base, "elided"):
return self._base.elided()
return None
def function(self):
""" Return the name of the frame's function or an address of
the function of the frame. First determine if this is a
special frame. If not, try to determine filename from GDB's
frame internal function API. Finally, if a name cannot be
determined return the address. If this function returns an
address, GDB will attempt to determine the function name from
its internal minimal symbols store (for example, for inferiors
without debug-info)."""
# Both gdb.Frame, and FrameDecorator have a method called
# "function", so determine which object this is.
if not isinstance(self._base, gdb.Frame):
if hasattr(self._base, "function"):
# If it is not a gdb.Frame, and there is already a
# "function" method, use that.
return self._base.function()
frame = self.inferior_frame()
if frame.type() == gdb.DUMMY_FRAME:
return ""
elif frame.type() == gdb.SIGTRAMP_FRAME:
return ""
func = frame.function()
# If we cannot determine the function name, return the
# address. If GDB detects an integer value from this function
# it will attempt to find the function name from minimal
# symbols via its own internal functions.
if func == None:
pc = frame.pc()
return pc
return str(func)
def address(self):
""" Return the address of the frame's pc"""
if hasattr(self._base, "address"):
return self._base.address()
frame = self.inferior_frame()
return frame.pc()
def filename(self):
""" Return the filename associated with this frame, detecting
and returning the appropriate library name is this is a shared
library."""
if hasattr(self._base, "filename"):
return self._base.filename()
frame = self.inferior_frame()
sal = frame.find_sal()
if not sal.symtab or not sal.symtab.filename:
pc = frame.pc()
return gdb.solib_name(pc)
else:
return sal.symtab.filename
def frame_args(self):
""" Return an iterable of frame arguments for this frame, if
any. The iterable object contains objects conforming with the
Symbol/Value interface. If there are no frame arguments, or
if this frame is deemed to be a special case, return None."""
if hasattr(self._base, "frame_args"):
return self._base.frame_args()
frame = self.inferior_frame()
if self._is_limited_frame(frame):
return None
args = FrameVars(frame)
return args.fetch_frame_args()
def frame_locals(self):
""" Return an iterable of local variables for this frame, if
any. The iterable object contains objects conforming with the
Symbol/Value interface. If there are no frame locals, or if
this frame is deemed to be a special case, return None."""
if hasattr(self._base, "frame_locals"):
return self._base.frame_locals()
frame = self.inferior_frame()
if self._is_limited_frame(frame):
return None
args = FrameVars(frame)
return args.fetch_frame_locals()
def line(self):
""" Return line number information associated with the frame's
pc. If symbol table/line information does not exist, or if
this frame is deemed to be a special case, return None"""
if hasattr(self._base, "line"):
return self._base.line()
frame = self.inferior_frame()
if self._is_limited_frame(frame):
return None
sal = frame.find_sal()
if (sal):
return sal.line
else:
return None
def inferior_frame(self):
""" Return the gdb.Frame underpinning this frame decorator."""
# If 'base' is a frame decorator, we want to call its inferior
# frame method. If '_base' is a gdb.Frame, just return that.
if hasattr(self._base, "inferior_frame"):
return self._base.inferior_frame()
return self._base
class SymValueWrapper(object):
"""A container class conforming to the Symbol/Value interface
which holds frame locals or frame arguments."""
def __init__(self, symbol, value):
self.sym = symbol
self.val = value
def value(self):
""" Return the value associated with this symbol, or None"""
return self.val
def symbol(self):
""" Return the symbol, or Python text, associated with this
symbol, or None"""
return self.sym
class FrameVars(object):
"""Utility class to fetch and store frame local variables, or
frame arguments."""
def __init__(self, frame):
self.frame = frame
self.symbol_class = {
gdb.SYMBOL_LOC_STATIC: True,
gdb.SYMBOL_LOC_REGISTER: True,
gdb.SYMBOL_LOC_ARG: True,
gdb.SYMBOL_LOC_REF_ARG: True,
gdb.SYMBOL_LOC_LOCAL: True,
gdb.SYMBOL_LOC_REGPARM_ADDR: True,
gdb.SYMBOL_LOC_COMPUTED: True
}
def fetch_b(self, sym):
""" Local utility method to determine if according to Symbol
type whether it should be included in the iterator. Not all
symbols are fetched, and only symbols that return
True from this method should be fetched."""
# SYM may be a string instead of a symbol in the case of
# synthetic local arguments or locals. If that is the case,
# always fetch.
if isinstance(sym, basestring):
return True
sym_type = sym.addr_class
return self.symbol_class.get(sym_type, False)
def fetch_frame_locals(self):
"""Public utility method to fetch frame local variables for
the stored frame. Frame arguments are not fetched. If there
are no frame local variables, return an empty list."""
lvars = []
try:
block = self.frame.block()
except RuntimeError:
block = None
while block != None:
if block.is_global or block.is_static:
break
for sym in block:
if sym.is_argument:
continue;
if self.fetch_b(sym):
lvars.append(SymValueWrapper(sym, None))
block = block.superblock
return lvars
def fetch_frame_args(self):
"""Public utility method to fetch frame arguments for the
stored frame. Frame arguments are the only type fetched. If
there are no frame argument variables, return an empty list."""
args = []
try:
block = self.frame.block()
except RuntimeError:
block = None
while block != None:
if block.function != None:
break
block = block.superblock
if block != None:
for sym in block:
if not sym.is_argument:
continue;
args.append(SymValueWrapper(sym, None))
return args
PK ! Z6 ~ python/gdb/__init__.pynu „[µü¤ # Copyright (C) 2010-2018 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 .
import traceback
import os
import sys
import _gdb
if sys.version_info[0] > 2:
# Python 3 moved "reload"
from imp import reload
from _gdb import *
class _GdbFile (object):
# These two are needed in Python 3
encoding = "UTF-8"
errors = "strict"
def close(self):
# Do nothing.
return None
def isatty(self):
return False
def writelines(self, iterable):
for line in iterable:
self.write(line)
def flush(self):
flush()
class GdbOutputFile (_GdbFile):
def write(self, s):
write(s, stream=STDOUT)
sys.stdout = GdbOutputFile()
class GdbOutputErrorFile (_GdbFile):
def write(self, s):
write(s, stream=STDERR)
sys.stderr = GdbOutputErrorFile()
# Default prompt hook does nothing.
prompt_hook = None
# Ensure that sys.argv is set to something.
# We do not use PySys_SetArgvEx because it did not appear until 2.6.6.
sys.argv = ['']
# Initial pretty printers.
pretty_printers = []
# Initial type printers.
type_printers = []
# Initial xmethod matchers.
xmethods = []
# Initial frame filters.
frame_filters = {}
# Initial frame unwinders.
frame_unwinders = []
def execute_unwinders(pending_frame):
"""Internal function called from GDB to execute all unwinders.
Runs each currently enabled unwinder until it finds the one that
can unwind given frame.
Arguments:
pending_frame: gdb.PendingFrame instance.
Returns:
gdb.UnwindInfo instance or None.
"""
for objfile in _gdb.objfiles():
for unwinder in objfile.frame_unwinders:
if unwinder.enabled:
unwind_info = unwinder(pending_frame)
if unwind_info is not None:
return unwind_info
current_progspace = _gdb.current_progspace()
for unwinder in current_progspace.frame_unwinders:
if unwinder.enabled:
unwind_info = unwinder(pending_frame)
if unwind_info is not None:
return unwind_info
for unwinder in frame_unwinders:
if unwinder.enabled:
unwind_info = unwinder(pending_frame)
if unwind_info is not None:
return unwind_info
return None
# Convenience variable to GDB's python directory
PYTHONDIR = os.path.dirname(os.path.dirname(__file__))
# Auto-load all functions/commands.
# Packages to auto-load.
packages = [
'function',
'command',
'printer'
]
# pkgutil.iter_modules is not available prior to Python 2.6. Instead,
# manually iterate the list, collating the Python files in each module
# path. Construct the module name, and import.
def auto_load_packages():
for package in packages:
location = os.path.join(os.path.dirname(__file__), package)
if os.path.exists(location):
py_files = filter(lambda x: x.endswith('.py')
and x != '__init__.py',
os.listdir(location))
for py_file in py_files:
# Construct from foo.py, gdb.module.foo
modname = "%s.%s.%s" % ( __name__, package, py_file[:-3] )
try:
if modname in sys.modules:
# reload modules with duplicate names
reload(__import__(modname))
else:
__import__(modname)
except:
sys.stderr.write (traceback.format_exc() + "\n")
auto_load_packages()
def GdbSetPythonDirectory(dir):
"""Update sys.path, reload gdb and auto-load packages."""
global PYTHONDIR
try:
sys.path.remove(PYTHONDIR)
except ValueError:
pass
sys.path.insert(0, dir)
PYTHONDIR = dir
# note that reload overwrites the gdb module without deleting existing
# attributes
reload(__import__(__name__))
auto_load_packages()
PK ! É4) ) python/gdb/FrameIterator.pynu „[µü¤ # Copyright (C) 2013-2018 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 .
import gdb
import itertools
class FrameIterator(object):
"""A gdb.Frame iterator. Iterates over gdb.Frames or objects that
conform to that interface."""
def __init__(self, frame_obj):
"""Initialize a FrameIterator.
Arguments:
frame_obj the starting frame."""
super(FrameIterator, self).__init__()
self.frame = frame_obj
def __iter__(self):
return self
def next(self):
"""next implementation.
Returns:
The next oldest frame."""
result = self.frame
if result is None:
raise StopIteration
self.frame = result.older()
return result
# Python 3.x requires __next__(self) while Python 2.x requires
# next(self). Define next(self), and for Python 3.x create this
# wrapper.
def __next__(self):
return self.next()
PK ! dÖïŽ_ _ python/gdb/frames.pynu „[µü¤ # Frame-filter commands.
# Copyright (C) 2013-2018 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 .
"""Internal functions for working with frame-filters."""
import gdb
from gdb.FrameIterator import FrameIterator
from gdb.FrameDecorator import FrameDecorator
import itertools
import collections
def get_priority(filter_item):
""" Internal worker function to return the frame-filter's priority
from a frame filter object. This is a fail free function as it is
used in sorting and filtering. If a badly implemented frame
filter does not implement the priority attribute, return zero
(otherwise sorting/filtering will fail and prevent other frame
filters from executing).
Arguments:
filter_item: An object conforming to the frame filter
interface.
Returns:
The priority of the frame filter from the "priority"
attribute, or zero.
"""
# Do not fail here, as the sort will fail. If a filter has not
# (incorrectly) set a priority, set it to zero.
return getattr(filter_item, "priority", 0)
def set_priority(filter_item, priority):
""" Internal worker function to set the frame-filter's priority.
Arguments:
filter_item: An object conforming to the frame filter
interface.
priority: The priority to assign as an integer.
"""
filter_item.priority = priority
def get_enabled(filter_item):
""" Internal worker function to return a filter's enabled state
from a frame filter object. This is a fail free function as it is
used in sorting and filtering. If a badly implemented frame
filter does not implement the enabled attribute, return False
(otherwise sorting/filtering will fail and prevent other frame
filters from executing).
Arguments:
filter_item: An object conforming to the frame filter
interface.
Returns:
The enabled state of the frame filter from the "enabled"
attribute, or False.
"""
# If the filter class is badly implemented when called from the
# Python filter command, do not cease filter operations, just set
# enabled to False.
return getattr(filter_item, "enabled", False)
def set_enabled(filter_item, state):
""" Internal Worker function to set the frame-filter's enabled
state.
Arguments:
filter_item: An object conforming to the frame filter
interface.
state: True or False, depending on desired state.
"""
filter_item.enabled = state
def return_list(name):
""" Internal Worker function to return the frame filter
dictionary, depending on the name supplied as an argument. If the
name is not "all", "global" or "progspace", it is assumed to name
an object-file.
Arguments:
name: The name of the list, as specified by GDB user commands.
Returns:
A dictionary object for a single specified dictionary, or a
list containing all the items for "all"
Raises:
gdb.GdbError: A dictionary of that name cannot be found.
"""
# If all dictionaries are wanted in the case of "all" we
# cannot return a combined dictionary as keys() may clash in
# between different dictionaries. As we just want all the frame
# filters to enable/disable them all, just return the combined
# items() as a chained iterator of dictionary values.
if name == "all":
glob = gdb.frame_filters.values()
prog = gdb.current_progspace().frame_filters.values()
return_iter = itertools.chain(glob, prog)
for objfile in gdb.objfiles():
return_iter = itertools.chain(return_iter, objfile.frame_filters.values())
return return_iter
if name == "global":
return gdb.frame_filters
else:
if name == "progspace":
cp = gdb.current_progspace()
return cp.frame_filters
else:
for objfile in gdb.objfiles():
if name == objfile.filename:
return objfile.frame_filters
msg = "Cannot find frame-filter dictionary for '" + name + "'"
raise gdb.GdbError(msg)
def _sort_list():
""" Internal Worker function to merge all known frame-filter
lists, prune any filters with the state set to "disabled", and
sort the list on the frame-filter's "priority" attribute.
Returns:
sorted_list: A sorted, pruned list of frame filters to
execute.
"""
all_filters = return_list("all")
sorted_frame_filters = sorted(all_filters, key = get_priority,
reverse = True)
sorted_frame_filters = filter(get_enabled,
sorted_frame_filters)
return sorted_frame_filters
def execute_frame_filters(frame, frame_low, frame_high):
""" Internal function called from GDB that will execute the chain
of frame filters. Each filter is executed in priority order.
After the execution completes, slice the iterator to frame_low -
frame_high range.
Arguments:
frame: The initial frame.
frame_low: The low range of the slice. If this is a negative
integer then it indicates a backward slice (ie bt -4) which
counts backward from the last frame in the backtrace.
frame_high: The high range of the slice. If this is -1 then
it indicates all frames until the end of the stack from
frame_low.
Returns:
frame_iterator: The sliced iterator after all frame
filters have had a change to execute, or None if no frame
filters are registered.
"""
# Get a sorted list of frame filters.
sorted_list = list(_sort_list())
# Check to see if there are any frame-filters. If not, just
# return None and let default backtrace printing occur.
if len(sorted_list) == 0:
return None
frame_iterator = FrameIterator(frame)
# Apply a basic frame decorator to all gdb.Frames. This unifies
# the interface. Python 3.x moved the itertools.imap
# functionality to map(), so check if it is available.
if hasattr(itertools,"imap"):
frame_iterator = itertools.imap(FrameDecorator, frame_iterator)
else:
frame_iterator = map(FrameDecorator, frame_iterator)
for ff in sorted_list:
frame_iterator = ff.filter(frame_iterator)
# Slicing
# Is this a slice from the end of the backtrace, ie bt -2?
if frame_low < 0:
count = 0
slice_length = abs(frame_low)
# We cannot use MAXLEN argument for deque as it is 2.6 onwards
# and some GDB versions might be < 2.6.
sliced = collections.deque()
for frame_item in frame_iterator:
if count >= slice_length:
sliced.popleft();
count = count + 1
sliced.append(frame_item)
return iter(sliced)
# -1 for frame_high means until the end of the backtrace. Set to
# None if that is the case, to indicate to itertools.islice to
# slice to the end of the iterator.
if frame_high == -1:
frame_high = None
else:
# As frames start from 0, add one to frame_high so islice
# correctly finds the end
frame_high = frame_high + 1;
sliced = itertools.islice(frame_iterator, frame_low, frame_high)
return sliced
PK ! ¾ú$š š python/gdb/types.pynu „[µü¤ # Type utilities.
# Copyright (C) 2010-2018 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 .
"""Utilities for working with gdb.Types."""
import gdb
def get_basic_type(type_):
"""Return the "basic" type of a type.
Arguments:
type_: The type to reduce to its basic type.
Returns:
type_ with const/volatile is stripped away,
and typedefs/references converted to the underlying type.
"""
while (type_.code == gdb.TYPE_CODE_REF or
type_.code == gdb.TYPE_CODE_RVALUE_REF or
type_.code == gdb.TYPE_CODE_TYPEDEF):
if (type_.code == gdb.TYPE_CODE_REF or
type_.code == gdb.TYPE_CODE_RVALUE_REF):
type_ = type_.target()
else:
type_ = type_.strip_typedefs()
return type_.unqualified()
def has_field(type_, field):
"""Return True if a type has the specified field.
Arguments:
type_: The type to examine.
It must be one of gdb.TYPE_CODE_STRUCT, gdb.TYPE_CODE_UNION.
field: The name of the field to look up.
Returns:
True if the field is present either in type_ or any baseclass.
Raises:
TypeError: The type is not a struct or union.
"""
type_ = get_basic_type(type_)
if (type_.code != gdb.TYPE_CODE_STRUCT and
type_.code != gdb.TYPE_CODE_UNION):
raise TypeError("not a struct or union")
for f in type_.fields():
if f.is_base_class:
if has_field(f.type, field):
return True
else:
# NOTE: f.name could be None
if f.name == field:
return True
return False
def make_enum_dict(enum_type):
"""Return a dictionary from a program's enum type.
Arguments:
enum_type: The enum to compute the dictionary for.
Returns:
The dictionary of the enum.
Raises:
TypeError: The type is not an enum.
"""
if enum_type.code != gdb.TYPE_CODE_ENUM:
raise TypeError("not an enum type")
enum_dict = {}
for field in enum_type.fields():
# The enum's value is stored in "enumval".
enum_dict[field.name] = field.enumval
return enum_dict
def deep_items (type_):
"""Return an iterator that recursively traverses anonymous fields.
Arguments:
type_: The type to traverse. It should be one of
gdb.TYPE_CODE_STRUCT or gdb.TYPE_CODE_UNION.
Returns:
an iterator similar to gdb.Type.iteritems(), i.e., it returns
pairs of key, value, but for any anonymous struct or union
field that field is traversed recursively, depth-first.
"""
for k, v in type_.iteritems ():
if k:
yield k, v
else:
for i in deep_items (v.type):
yield i
class TypePrinter(object):
"""The base class for type printers.
Instances of this type can be used to substitute type names during
'ptype'.
A type printer must have at least 'name' and 'enabled' attributes,
and supply an 'instantiate' method.
The 'instantiate' method must either return None, or return an
object which has a 'recognize' method. This method must accept a
gdb.Type argument and either return None, meaning that the type
was not recognized, or a string naming the type.
"""
def __init__(self, name):
self.name = name
self.enabled = True
def instantiate(self):
return None
# Helper function for computing the list of type recognizers.
def _get_some_type_recognizers(result, plist):
for printer in plist:
if printer.enabled:
inst = printer.instantiate()
if inst is not None:
result.append(inst)
return None
def get_type_recognizers():
"Return a list of the enabled type recognizers for the current context."
result = []
# First try the objfiles.
for objfile in gdb.objfiles():
_get_some_type_recognizers(result, objfile.type_printers)
# Now try the program space.
_get_some_type_recognizers(result, gdb.current_progspace().type_printers)
# Finally, globals.
_get_some_type_recognizers(result, gdb.type_printers)
return result
def apply_type_recognizers(recognizers, type_obj):
"""Apply the given list of type recognizers to the type TYPE_OBJ.
If any recognizer in the list recognizes TYPE_OBJ, returns the name
given by the recognizer. Otherwise, this returns None."""
for r in recognizers:
result = r.recognize(type_obj)
if result is not None:
return result
return None
def register_type_printer(locus, printer):
"""Register a type printer.
PRINTER is the type printer instance.
LOCUS is either an objfile, a program space, or None, indicating
global registration."""
if locus is None:
locus = gdb
locus.type_printers.insert(0, printer)
PK ! (b‰4´ ´ python/gdb/function/__init__.pynu „[µü¤ # Copyright (C) 2012-2018 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 .
PK ! Þ
,v v python/gdb/function/in_scope.pynu „[µü¤ # In-scope function.
# Copyright (C) 2008 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 .
import gdb
class InScope (gdb.Function):
"""Return True if all the given variables or macros are in scope.
Takes one argument for each variable name to be checked."""
def __init__ (self):
super (InScope, self).__init__ ("in_scope")
def invoke (self, *vars):
if len (vars) == 0:
raise (TypeError, "in_scope takes at least one argument")
# gdb.Value isn't hashable so it can't be put in a map.
# Convert to string first.
wanted = set (map (lambda x: x.string (), vars))
found = set ()
block = gdb.selected_frame ().block ()
while block:
for sym in block:
if (sym.is_argument or sym.is_constant
or sym.is_function or sym.is_variable):
if sym.name in wanted:
found.add (sym.name)
block = block.superblock
return wanted == found
InScope ()
PK ! ÛGŸ�|
|
python/gdb/function/strfns.pynu „[µü¤ # Useful gdb string convenience functions.
# Copyright (C) 2012-2018 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 .
"""$_memeq, $_strlen, $_streq, $_regex"""
import gdb
import re
class _MemEq(gdb.Function):
"""$_memeq - compare bytes of memory
Usage:
$_memeq(a, b, len)
Returns:
True if len bytes at a and b compare equally.
"""
def __init__(self):
super(_MemEq, self).__init__("_memeq")
def invoke(self, a, b, length):
if length < 0:
raise ValueError("length must be non-negative")
if length == 0:
return True
# The argument(s) to vector are [low_bound,]high_bound.
byte_vector = gdb.lookup_type("char").vector(length - 1)
ptr_byte_vector = byte_vector.pointer()
a_ptr = a.reinterpret_cast(ptr_byte_vector)
b_ptr = b.reinterpret_cast(ptr_byte_vector)
return a_ptr.dereference() == b_ptr.dereference()
class _StrLen(gdb.Function):
"""$_strlen - compute string length
Usage:
$_strlen(a)
Returns:
Length of string a, assumed to be a string in the current language.
"""
def __init__(self):
super(_StrLen, self).__init__("_strlen")
def invoke(self, a):
s = a.string()
return len(s)
class _StrEq(gdb.Function):
"""$_streq - check string equality
Usage:
$_streq(a, b)
Returns:
True if a and b are identical strings in the current language.
Example (amd64-linux):
catch syscall open
cond $bpnum $_streq((char*) $rdi, "foo")
"""
def __init__(self):
super(_StrEq, self).__init__("_streq")
def invoke(self, a, b):
return a.string() == b.string()
class _RegEx(gdb.Function):
"""$_regex - check if a string matches a regular expression
Usage:
$_regex(string, regex)
Returns:
True if string str (in the current language) matches the
regular expression regex.
"""
def __init__(self):
super(_RegEx, self).__init__("_regex")
def invoke(self, string, regex):
s = string.string()
r = re.compile(regex.string())
return bool(r.match(s))
# GDB will import us automagically via gdb/__init__.py.
_MemEq()
_StrLen()
_StrEq()
_RegEx()
PK ! æk)z python/gdb/function/as_string.pynu „[µü¤ # Copyright (C) 2016-2018 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 .
import gdb
class _AsString(gdb.Function):
"""Return the string representation of a value.
Usage:
$_as_string(value)
Arguments:
value: A gdb.Value.
Returns:
The string representation of the value.
"""
def __init__(self):
super(_AsString, self).__init__("_as_string")
def invoke(self, val):
return str(val)
_AsString()
PK ! ‹O€öÑ Ñ python/gdb/function/caller_is.pynu „[µü¤ # Caller-is functions.
# Copyright (C) 2008-2018 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 .
import gdb
import re
class CallerIs(gdb.Function):
"""Check the calling function's name.
Usage:
$_caller_is(name [, number_of_frames])
Arguments:
name: The name of the function to search for.
number_of_frames: How many stack frames to traverse back from the currently
selected frame to compare with. If the value is greater than the depth of
the stack from that point then the result is False.
The default is 1.
Returns:
True if the function's name at the specified frame is equal to name.
"""
def __init__(self):
super(CallerIs, self).__init__("_caller_is")
def invoke(self, name, nframes = 1):
if nframes < 0:
raise ValueError("nframes must be >= 0")
frame = gdb.selected_frame()
while nframes > 0:
frame = frame.older()
if frame is None:
return False
nframes = nframes - 1
return frame.name() == name.string()
class CallerMatches(gdb.Function):
"""Compare the calling function's name with a regexp.
Usage:
$_caller_matches(regex [, number_of_frames])
Arguments:
regex: The regular expression to compare the function's name with.
number_of_frames: How many stack frames to traverse back from the currently
selected frame to compare with. If the value is greater than the depth of
the stack from that point then the result is False.
The default is 1.
Returns:
True if the function's name at the specified frame matches regex.
"""
def __init__(self):
super(CallerMatches, self).__init__("_caller_matches")
def invoke(self, name, nframes = 1):
if nframes < 0:
raise ValueError("nframes must be >= 0")
frame = gdb.selected_frame()
while nframes > 0:
frame = frame.older()
if frame is None:
return False
nframes = nframes - 1
return re.match(name.string(), frame.name()) is not None
class AnyCallerIs(gdb.Function):
"""Check all calling function's names.
Usage:
$_any_caller_is(name [, number_of_frames])
Arguments:
name: The name of the function to search for.
number_of_frames: How many stack frames to traverse back from the currently
selected frame to compare with. If the value is greater than the depth of
the stack from that point then the result is False.
The default is 1.
Returns:
True if any function's name is equal to name.
"""
def __init__(self):
super(AnyCallerIs, self).__init__("_any_caller_is")
def invoke(self, name, nframes = 1):
if nframes < 0:
raise ValueError("nframes must be >= 0")
frame = gdb.selected_frame()
while nframes >= 0:
if frame.name() == name.string():
return True
frame = frame.older()
if frame is None:
return False
nframes = nframes - 1
return False
class AnyCallerMatches(gdb.Function):
"""Compare all calling function's names with a regexp.
Usage:
$_any_caller_matches(regex [, number_of_frames])
Arguments:
regex: The regular expression to compare the function's name with.
number_of_frames: How many stack frames to traverse back from the currently
selected frame to compare with. If the value is greater than the depth of
the stack from that point then the result is False.
The default is 1.
Returns:
True if any function's name matches regex.
"""
def __init__(self):
super(AnyCallerMatches, self).__init__("_any_caller_matches")
def invoke(self, name, nframes = 1):
if nframes < 0:
raise ValueError("nframes must be >= 0")
frame = gdb.selected_frame()
name_re = re.compile(name.string())
while nframes >= 0:
if name_re.match(frame.name()) is not None:
return True
frame = frame.older()
if frame is None:
return False
nframes = nframes - 1
return False
CallerIs()
CallerMatches()
AnyCallerIs()
AnyCallerMatches()
PK ! ½
!q q python/gdb/prompt.pynu „[µü¤ # Extended prompt utilities.
# Copyright (C) 2011-2018 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 .
""" Extended prompt library functions."""
import gdb
import os
def _prompt_pwd(ignore):
"The current working directory."
return os.getcwd()
def _prompt_object_attr(func, what, attr, nattr):
"""Internal worker for fetching GDB attributes."""
if attr is None:
attr = nattr
try:
obj = func()
except gdb.error:
return '' % what
if hasattr(obj, attr):
result = getattr(obj, attr)
if callable(result):
result = result()
return result
else:
return '' % (attr, what)
def _prompt_frame(attr):
"The selected frame; an argument names a frame parameter."
return _prompt_object_attr(gdb.selected_frame, 'frame', attr, 'name')
def _prompt_thread(attr):
"The selected thread; an argument names a thread parameter."
return _prompt_object_attr(gdb.selected_thread, 'thread', attr, 'num')
def _prompt_version(attr):
"The version of GDB."
return gdb.VERSION
def _prompt_esc(attr):
"The ESC character."
return '\033'
def _prompt_bs(attr):
"A backslash."
return '\\'
def _prompt_n(attr):
"A newline."
return '\n'
def _prompt_r(attr):
"A carriage return."
return '\r'
def _prompt_param(attr):
"A parameter's value; the argument names the parameter."
return gdb.parameter(attr)
def _prompt_noprint_begin(attr):
"Begins a sequence of non-printing characters."
return '\001'
def _prompt_noprint_end(attr):
"Ends a sequence of non-printing characters."
return '\002'
prompt_substitutions = {
'e': _prompt_esc,
'\\': _prompt_bs,
'n': _prompt_n,
'r': _prompt_r,
'v': _prompt_version,
'w': _prompt_pwd,
'f': _prompt_frame,
't': _prompt_thread,
'p': _prompt_param,
'[': _prompt_noprint_begin,
']': _prompt_noprint_end
}
def prompt_help():
"""Generate help dynamically from the __doc__ strings of attribute
functions."""
result = ''
keys = sorted (prompt_substitutions.keys())
for key in keys:
result += ' \\%s\t%s\n' % (key, prompt_substitutions[key].__doc__)
result += """
A substitution can be used in a simple form, like "\\f".
An argument can also be passed to it, like "\\f{name}".
The meaning of the argument depends on the particular substitution."""
return result
def substitute_prompt(prompt):
"Perform substitutions on PROMPT."
result = ''
plen = len(prompt)
i = 0
while i < plen:
if prompt[i] == '\\':
i = i + 1
if i >= plen:
break
cmdch = prompt[i]
if cmdch in prompt_substitutions:
cmd = prompt_substitutions[cmdch]
if i + 1 < plen and prompt[i + 1] == '{':
j = i + 1
while j < plen and prompt[j] != '}':
j = j + 1
# Just ignore formatting errors.
if j >= plen or prompt[j] != '}':
arg = None
else:
arg = prompt[i + 2 : j]
i = j
else:
arg = None
result += str(cmd(arg))
else:
# Unrecognized escapes are turned into the escaped
# character itself.
result += prompt[i]
else:
result += prompt[i]
i = i + 1
return result
PK ! ijDýA A python/gdb/unwinder.pynu „[µü¤ # Copyright (C) 2015-2018 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 .
"""Unwinder class and register_unwinder function."""
import gdb
class Unwinder(object):
"""Base class (or a template) for frame unwinders written in Python.
An unwinder has a single method __call__ and the attributes
described below.
Attributes:
name: The name of the unwinder.
enabled: A boolean indicating whether the unwinder is enabled.
"""
def __init__(self, name):
"""Constructor.
Args:
name: An identifying name for the unwinder.
"""
self.name = name
self.enabled = True
def __call__(self, pending_frame):
"""GDB calls this method to unwind a frame.
Arguments:
pending_frame: gdb.PendingFrame instance.
Returns:
gdb.UnwindInfo instance.
"""
raise NotImplementedError("Unwinder __call__.")
def register_unwinder(locus, unwinder, replace=False):
"""Register unwinder in given locus.
The unwinder is prepended to the locus's unwinders list. Unwinder
name should be unique.
Arguments:
locus: Either an objfile, progspace, or None (in which case
the unwinder is registered globally).
unwinder: An object of a gdb.Unwinder subclass
replace: If True, replaces existing unwinder with the same name.
Otherwise, raises exception if unwinder with the same
name already exists.
Returns:
Nothing.
Raises:
RuntimeError: Unwinder name is not unique
TypeError: Bad locus type
"""
if locus is None:
if gdb.parameter("verbose"):
gdb.write("Registering global %s unwinder ...\n" % unwinder.name)
locus = gdb
elif isinstance(locus, gdb.Objfile) or isinstance(locus, gdb.Progspace):
if gdb.parameter("verbose"):
gdb.write("Registering %s unwinder for %s ...\n" %
(unwinder.name, locus.filename))
else:
raise TypeError("locus should be gdb.Objfile or gdb.Progspace or None")
i = 0
for needle in locus.frame_unwinders:
if needle.name == unwinder.name:
if replace:
del locus.frame_unwinders[i]
else:
raise RuntimeError("Unwinder %s already exists." %
unwinder.name)
i += 1
locus.frame_unwinders.insert(0, unwinder)
gdb.invalidate_cached_frames()
PK ! m«^%¡* ¡* python/gdb/printing.pynu „[µü¤ # Pretty-printer utilities.
# Copyright (C) 2010-2018 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 .
"""Utilities for working with pretty-printers."""
import gdb
import gdb.types
import re
import sys
if sys.version_info[0] > 2:
# Python 3 removed basestring and long
basestring = str
long = int
class PrettyPrinter(object):
"""A basic pretty-printer.
Attributes:
name: A unique string among all printers for the context in which
it is defined (objfile, progspace, or global(gdb)), and should
meaningfully describe what can be pretty-printed.
E.g., "StringPiece" or "protobufs".
subprinters: An iterable object with each element having a `name'
attribute, and, potentially, "enabled" attribute.
Or this is None if there are no subprinters.
enabled: A boolean indicating if the printer is enabled.
Subprinters are for situations where "one" pretty-printer is actually a
collection of several printers. E.g., The libstdc++ pretty-printer has
a pretty-printer for each of several different types, based on regexps.
"""
# While one might want to push subprinters into the subclass, it's
# present here to formalize such support to simplify
# commands/pretty_printers.py.
def __init__(self, name, subprinters=None):
self.name = name
self.subprinters = subprinters
self.enabled = True
def __call__(self, val):
# The subclass must define this.
raise NotImplementedError("PrettyPrinter __call__")
class SubPrettyPrinter(object):
"""Baseclass for sub-pretty-printers.
Sub-pretty-printers needn't use this, but it formalizes what's needed.
Attributes:
name: The name of the subprinter.
enabled: A boolean indicating if the subprinter is enabled.
"""
def __init__(self, name):
self.name = name
self.enabled = True
def register_pretty_printer(obj, printer, replace=False):
"""Register pretty-printer PRINTER with OBJ.
The printer is added to the front of the search list, thus one can override
an existing printer if one needs to. Use a different name when overriding
an existing printer, otherwise an exception will be raised; multiple
printers with the same name are disallowed.
Arguments:
obj: Either an objfile, progspace, or None (in which case the printer
is registered globally).
printer: Either a function of one argument (old way) or any object
which has attributes: name, enabled, __call__.
replace: If True replace any existing copy of the printer.
Otherwise if the printer already exists raise an exception.
Returns:
Nothing.
Raises:
TypeError: A problem with the type of the printer.
ValueError: The printer's name contains a semicolon ";".
RuntimeError: A printer with the same name is already registered.
If the caller wants the printer to be listable and disableable, it must
follow the PrettyPrinter API. This applies to the old way (functions) too.
If printer is an object, __call__ is a method of two arguments:
self, and the value to be pretty-printed. See PrettyPrinter.
"""
# Watch for both __name__ and name.
# Functions get the former for free, but we don't want to use an
# attribute named __foo__ for pretty-printers-as-objects.
# If printer has both, we use `name'.
if not hasattr(printer, "__name__") and not hasattr(printer, "name"):
raise TypeError("printer missing attribute: name")
if hasattr(printer, "name") and not hasattr(printer, "enabled"):
raise TypeError("printer missing attribute: enabled")
if not hasattr(printer, "__call__"):
raise TypeError("printer missing attribute: __call__")
if hasattr(printer, "name"):
name = printer.name
else:
name = printer.__name__
if obj is None or obj is gdb:
if gdb.parameter("verbose"):
gdb.write("Registering global %s pretty-printer ...\n" % name)
obj = gdb
else:
if gdb.parameter("verbose"):
gdb.write("Registering %s pretty-printer for %s ...\n" % (
name, obj.filename))
# Printers implemented as functions are old-style. In order to not risk
# breaking anything we do not check __name__ here.
if hasattr(printer, "name"):
if not isinstance(printer.name, basestring):
raise TypeError("printer name is not a string")
# If printer provides a name, make sure it doesn't contain ";".
# Semicolon is used by the info/enable/disable pretty-printer commands
# to delimit subprinters.
if printer.name.find(";") >= 0:
raise ValueError("semicolon ';' in printer name")
# Also make sure the name is unique.
# Alas, we can't do the same for functions and __name__, they could
# all have a canonical name like "lookup_function".
# PERF: gdb records printers in a list, making this inefficient.
i = 0
for p in obj.pretty_printers:
if hasattr(p, "name") and p.name == printer.name:
if replace:
del obj.pretty_printers[i]
break
else:
raise RuntimeError("pretty-printer already registered: %s" %
printer.name)
i = i + 1
obj.pretty_printers.insert(0, printer)
class RegexpCollectionPrettyPrinter(PrettyPrinter):
"""Class for implementing a collection of regular-expression based pretty-printers.
Intended usage:
pretty_printer = RegexpCollectionPrettyPrinter("my_library")
pretty_printer.add_printer("myclass1", "^myclass1$", MyClass1Printer)
...
pretty_printer.add_printer("myclassN", "^myclassN$", MyClassNPrinter)
register_pretty_printer(obj, pretty_printer)
"""
class RegexpSubprinter(SubPrettyPrinter):
def __init__(self, name, regexp, gen_printer):
super(RegexpCollectionPrettyPrinter.RegexpSubprinter, self).__init__(name)
self.regexp = regexp
self.gen_printer = gen_printer
self.compiled_re = re.compile(regexp)
def __init__(self, name):
super(RegexpCollectionPrettyPrinter, self).__init__(name, [])
def add_printer(self, name, regexp, gen_printer):
"""Add a printer to the list.
The printer is added to the end of the list.
Arguments:
name: The name of the subprinter.
regexp: The regular expression, as a string.
gen_printer: A function/method that given a value returns an
object to pretty-print it.
Returns:
Nothing.
"""
# NOTE: A previous version made the name of each printer the regexp.
# That makes it awkward to pass to the enable/disable commands (it's
# cumbersome to make a regexp of a regexp). So now the name is a
# separate parameter.
self.subprinters.append(self.RegexpSubprinter(name, regexp,
gen_printer))
def __call__(self, val):
"""Lookup the pretty-printer for the provided value."""
# Get the type name.
typename = gdb.types.get_basic_type(val.type).tag
if not typename:
typename = val.type.name
if not typename:
return None
# Iterate over table of type regexps to determine
# if a printer is registered for that type.
# Return an instantiation of the printer if found.
for printer in self.subprinters:
if printer.enabled and printer.compiled_re.search(typename):
return printer.gen_printer(val)
# Cannot find a pretty printer. Return None.
return None
# A helper class for printing enum types. This class is instantiated
# with a list of enumerators to print a particular Value.
class _EnumInstance:
def __init__(self, enumerators, val):
self.enumerators = enumerators
self.val = val
def to_string(self):
flag_list = []
v = long(self.val)
any_found = False
for (e_name, e_value) in self.enumerators:
if v & e_value != 0:
flag_list.append(e_name)
v = v & ~e_value
any_found = True
if not any_found or v != 0:
# Leftover value.
flag_list.append('' % v)
return "0x%x [%s]" % (int(self.val), " | ".join(flag_list))
class FlagEnumerationPrinter(PrettyPrinter):
"""A pretty-printer which can be used to print a flag-style enumeration.
A flag-style enumeration is one where the enumerators are or'd
together to create values. The new printer will print these
symbolically using '|' notation. The printer must be registered
manually. This printer is most useful when an enum is flag-like,
but has some overlap. GDB's built-in printing will not handle
this case, but this printer will attempt to."""
def __init__(self, enum_type):
super(FlagEnumerationPrinter, self).__init__(enum_type)
self.initialized = False
def __call__(self, val):
if not self.initialized:
self.initialized = True
flags = gdb.lookup_type(self.name)
self.enumerators = []
for field in flags.fields():
self.enumerators.append((field.name, field.enumval))
# Sorting the enumerators by value usually does the right
# thing.
self.enumerators.sort(key = lambda x: x[1])
if self.enabled:
return _EnumInstance(self.enumerators, val)
else:
return None
# Builtin pretty-printers.
# The set is defined as empty, and files in printing/*.py add their printers
# to this with add_builtin_pretty_printer.
_builtin_pretty_printers = RegexpCollectionPrettyPrinter("builtin")
register_pretty_printer(None, _builtin_pretty_printers)
# Add a builtin pretty-printer.
def add_builtin_pretty_printer(name, regexp, printer):
_builtin_pretty_printers.add_printer(name, regexp, printer)
PK ! ÇÍŒ¼´ ´ python/gdb/printer/__init__.pynu „[µü¤ # Copyright (C) 2014-2018 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 .
PK ! Áx+Ëâ â % python/gdb/printer/bound_registers.pynu „[µü¤ # Pretty-printers for bounds registers.
# Copyright (C) 2013-2018 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 .
import sys
import gdb.printing
if sys.version_info[0] > 2:
# Python 3 removed basestring and long
basestring = str
long = int
class MpxBound128Printer:
"""Adds size field to a mpx __gdb_builtin_type_bound128 type."""
def __init__ (self, val):
self.val = val
def to_string (self):
upper = self.val["ubound"]
lower = self.val["lbound"]
size = (long) ((upper) - (lower))
if size > -1:
size = size + 1
result = '{lbound = %s, ubound = %s} : size %s' % (lower, upper, size)
return result
gdb.printing.add_builtin_pretty_printer ('mpx_bound128',
'^__gdb_builtin_type_bound128',
MpxBound128Printer)
PK ! $mÐbi i python/gdb/command/explore.pynu „[µü¤ # GDB 'explore' command.
# Copyright (C) 2012-2018 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 .
"""Implementation of the GDB 'explore' command using the GDB Python API."""
import gdb
import sys
if sys.version_info[0] > 2:
# Python 3 renamed raw_input to input
raw_input = input
class Explorer(object):
"""Internal class which invokes other explorers."""
# This map is filled by the Explorer.init_env() function
type_code_to_explorer_map = { }
_SCALAR_TYPE_LIST = (
gdb.TYPE_CODE_CHAR,
gdb.TYPE_CODE_INT,
gdb.TYPE_CODE_BOOL,
gdb.TYPE_CODE_FLT,
gdb.TYPE_CODE_VOID,
gdb.TYPE_CODE_ENUM,
)
@staticmethod
def guard_expr(expr):
length = len(expr)
guard = False
if expr[0] == '(' and expr[length-1] == ')':
pass
else:
i = 0
while i < length:
c = expr[i]
if (c == '_' or ('a' <= c and c <= 'z') or
('A' <= c and c <= 'Z') or ('0' <= c and c <= '9')):
pass
else:
guard = True
break
i += 1
if guard:
return "(" + expr + ")"
else:
return expr
@staticmethod
def explore_expr(expr, value, is_child):
"""Main function to explore an expression value.
Arguments:
expr: The expression string that is being explored.
value: The gdb.Value value of the expression.
is_child: Boolean value to indicate if the expression is a child.
An expression is a child if it is derived from the main
expression entered by the user. For example, if the user
entered an expression which evaluates to a struct, then
when exploring the fields of the struct, is_child is set
to True internally.
Returns:
No return value.
"""
type_code = value.type.code
if type_code in Explorer.type_code_to_explorer_map:
explorer_class = Explorer.type_code_to_explorer_map[type_code]
while explorer_class.explore_expr(expr, value, is_child):
pass
else:
print ("Explorer for type '%s' not yet available.\n" %
str(value.type))
@staticmethod
def explore_type(name, datatype, is_child):
"""Main function to explore a data type.
Arguments:
name: The string representing the path to the data type being
explored.
datatype: The gdb.Type value of the data type being explored.
is_child: Boolean value to indicate if the name is a child.
A name is a child if it is derived from the main name
entered by the user. For example, if the user entered
the name of struct type, then when exploring the fields
of the struct, is_child is set to True internally.
Returns:
No return value.
"""
type_code = datatype.code
if type_code in Explorer.type_code_to_explorer_map:
explorer_class = Explorer.type_code_to_explorer_map[type_code]
while explorer_class.explore_type(name, datatype, is_child):
pass
else:
print ("Explorer for type '%s' not yet available.\n" %
str(datatype))
@staticmethod
def init_env():
"""Initializes the Explorer environment.
This function should be invoked before starting any exploration. If
invoked before an exploration, it need not be invoked for subsequent
explorations.
"""
Explorer.type_code_to_explorer_map = {
gdb.TYPE_CODE_CHAR : ScalarExplorer,
gdb.TYPE_CODE_INT : ScalarExplorer,
gdb.TYPE_CODE_BOOL : ScalarExplorer,
gdb.TYPE_CODE_FLT : ScalarExplorer,
gdb.TYPE_CODE_VOID : ScalarExplorer,
gdb.TYPE_CODE_ENUM : ScalarExplorer,
gdb.TYPE_CODE_STRUCT : CompoundExplorer,
gdb.TYPE_CODE_UNION : CompoundExplorer,
gdb.TYPE_CODE_PTR : PointerExplorer,
gdb.TYPE_CODE_REF : ReferenceExplorer,
gdb.TYPE_CODE_RVALUE_REF : ReferenceExplorer,
gdb.TYPE_CODE_TYPEDEF : TypedefExplorer,
gdb.TYPE_CODE_ARRAY : ArrayExplorer
}
@staticmethod
def is_scalar_type(type):
"""Checks whether a type is a scalar type.
A type is a scalar type of its type is
gdb.TYPE_CODE_CHAR or
gdb.TYPE_CODE_INT or
gdb.TYPE_CODE_BOOL or
gdb.TYPE_CODE_FLT or
gdb.TYPE_CODE_VOID or
gdb.TYPE_CODE_ENUM.
Arguments:
type: The type to be checked.
Returns:
'True' if 'type' is a scalar type. 'False' otherwise.
"""
return type.code in Explorer._SCALAR_TYPE_LIST
@staticmethod
def return_to_parent_value():
"""A utility function which prints that the current exploration session
is returning to the parent value. Useful when exploring values.
"""
print ("\nReturning to parent value...\n")
@staticmethod
def return_to_parent_value_prompt():
"""A utility function which prompts the user to press the 'enter' key
so that the exploration session can shift back to the parent value.
Useful when exploring values.
"""
raw_input("\nPress enter to return to parent value: ")
@staticmethod
def return_to_enclosing_type():
"""A utility function which prints that the current exploration session
is returning to the enclosing type. Useful when exploring types.
"""
print ("\nReturning to enclosing type...\n")
@staticmethod
def return_to_enclosing_type_prompt():
"""A utility function which prompts the user to press the 'enter' key
so that the exploration session can shift back to the enclosing type.
Useful when exploring types.
"""
raw_input("\nPress enter to return to enclosing type: ")
class ScalarExplorer(object):
"""Internal class used to explore scalar values."""
@staticmethod
def explore_expr(expr, value, is_child):
"""Function to explore scalar values.
See Explorer.explore_expr and Explorer.is_scalar_type for more
information.
"""
print ("'%s' is a scalar value of type '%s'." %
(expr, value.type))
print ("%s = %s" % (expr, str(value)))
if is_child:
Explorer.return_to_parent_value_prompt()
Explorer.return_to_parent_value()
return False
@staticmethod
def explore_type(name, datatype, is_child):
"""Function to explore scalar types.
See Explorer.explore_type and Explorer.is_scalar_type for more
information.
"""
if datatype.code == gdb.TYPE_CODE_ENUM:
if is_child:
print ("%s is of an enumerated type '%s'." %
(name, str(datatype)))
else:
print ("'%s' is an enumerated type." % name)
else:
if is_child:
print ("%s is of a scalar type '%s'." %
(name, str(datatype)))
else:
print ("'%s' is a scalar type." % name)
if is_child:
Explorer.return_to_enclosing_type_prompt()
Explorer.return_to_enclosing_type()
return False
class PointerExplorer(object):
"""Internal class used to explore pointer values."""
@staticmethod
def explore_expr(expr, value, is_child):
"""Function to explore pointer values.
See Explorer.explore_expr for more information.
"""
print ("'%s' is a pointer to a value of type '%s'" %
(expr, str(value.type.target())))
option = raw_input("Continue exploring it as a pointer to a single "
"value [y/n]: ")
if option == "y":
deref_value = None
try:
deref_value = value.dereference()
str(deref_value)
except gdb.MemoryError:
print ("'%s' a pointer pointing to an invalid memory "
"location." % expr)
if is_child:
Explorer.return_to_parent_value_prompt()
return False
Explorer.explore_expr("*%s" % Explorer.guard_expr(expr),
deref_value, is_child)
return False
option = raw_input("Continue exploring it as a pointer to an "
"array [y/n]: ")
if option == "y":
while True:
index = 0
try:
index = int(raw_input("Enter the index of the element you "
"want to explore in '%s': " % expr))
except ValueError:
break
element_expr = "%s[%d]" % (Explorer.guard_expr(expr), index)
element = value[index]
try:
str(element)
except gdb.MemoryError:
print ("Cannot read value at index %d." % index)
continue
Explorer.explore_expr(element_expr, element, True)
return False
if is_child:
Explorer.return_to_parent_value()
return False
@staticmethod
def explore_type(name, datatype, is_child):
"""Function to explore pointer types.
See Explorer.explore_type for more information.
"""
target_type = datatype.target()
print ("\n%s is a pointer to a value of type '%s'." %
(name, str(target_type)))
Explorer.explore_type("the pointee type of %s" % name,
target_type,
is_child)
return False
class ReferenceExplorer(object):
"""Internal class used to explore reference (TYPE_CODE_REF) values."""
@staticmethod
def explore_expr(expr, value, is_child):
"""Function to explore array values.
See Explorer.explore_expr for more information.
"""
referenced_value = value.referenced_value()
Explorer.explore_expr(expr, referenced_value, is_child)
return False
@staticmethod
def explore_type(name, datatype, is_child):
"""Function to explore pointer types.
See Explorer.explore_type for more information.
"""
target_type = datatype.target()
Explorer.explore_type(name, target_type, is_child)
return False
class ArrayExplorer(object):
"""Internal class used to explore arrays."""
@staticmethod
def explore_expr(expr, value, is_child):
"""Function to explore array values.
See Explorer.explore_expr for more information.
"""
target_type = value.type.target()
print ("'%s' is an array of '%s'." % (expr, str(target_type)))
index = 0
try:
index = int(raw_input("Enter the index of the element you want to "
"explore in '%s': " % expr))
except ValueError:
if is_child:
Explorer.return_to_parent_value()
return False
element = None
try:
element = value[index]
str(element)
except gdb.MemoryError:
print ("Cannot read value at index %d." % index)
raw_input("Press enter to continue... ")
return True
Explorer.explore_expr("%s[%d]" % (Explorer.guard_expr(expr), index),
element, True)
return True
@staticmethod
def explore_type(name, datatype, is_child):
"""Function to explore array types.
See Explorer.explore_type for more information.
"""
target_type = datatype.target()
print ("%s is an array of '%s'." % (name, str(target_type)))
Explorer.explore_type("the array element of %s" % name, target_type,
is_child)
return False
class CompoundExplorer(object):
"""Internal class used to explore struct, classes and unions."""
@staticmethod
def _print_fields(print_list):
"""Internal function which prints the fields of a struct/class/union.
"""
max_field_name_length = 0
for pair in print_list:
if max_field_name_length < len(pair[0]):
max_field_name_length = len(pair[0])
for pair in print_list:
print (" %*s = %s" % (max_field_name_length, pair[0], pair[1]))
@staticmethod
def _get_real_field_count(fields):
real_field_count = 0;
for field in fields:
if not field.artificial:
real_field_count = real_field_count + 1
return real_field_count
@staticmethod
def explore_expr(expr, value, is_child):
"""Function to explore structs/classes and union values.
See Explorer.explore_expr for more information.
"""
datatype = value.type
type_code = datatype.code
fields = datatype.fields()
if type_code == gdb.TYPE_CODE_STRUCT:
type_desc = "struct/class"
else:
type_desc = "union"
if CompoundExplorer._get_real_field_count(fields) == 0:
print ("The value of '%s' is a %s of type '%s' with no fields." %
(expr, type_desc, str(value.type)))
if is_child:
Explorer.return_to_parent_value_prompt()
return False
print ("The value of '%s' is a %s of type '%s' with the following "
"fields:\n" % (expr, type_desc, str(value.type)))
has_explorable_fields = False
choice_to_compound_field_map = { }
current_choice = 0
print_list = [ ]
for field in fields:
if field.artificial:
continue
field_full_name = Explorer.guard_expr(expr) + "." + field.name
if field.is_base_class:
field_value = value.cast(field.type)
else:
field_value = value[field.name]
literal_value = ""
if type_code == gdb.TYPE_CODE_UNION:
literal_value = ("" % (current_choice, str(field.type)))
has_explorable_fields = True
else:
if Explorer.is_scalar_type(field.type):
literal_value = ("%s .. (Value of type '%s')" %
(str(field_value), str(field.type)))
else:
if field.is_base_class:
field_desc = "base class"
else:
field_desc = "field"
literal_value = ("" %
(current_choice, field_desc,
str(field.type)))
has_explorable_fields = True
choice_to_compound_field_map[str(current_choice)] = (
field_full_name, field_value)
current_choice = current_choice + 1
print_list.append((field.name, literal_value))
CompoundExplorer._print_fields(print_list)
print ("")
if has_explorable_fields:
choice = raw_input("Enter the field number of choice: ")
if choice in choice_to_compound_field_map:
Explorer.explore_expr(choice_to_compound_field_map[choice][0],
choice_to_compound_field_map[choice][1],
True)
return True
else:
if is_child:
Explorer.return_to_parent_value()
else:
if is_child:
Explorer.return_to_parent_value_prompt()
return False
@staticmethod
def explore_type(name, datatype, is_child):
"""Function to explore struct/class and union types.
See Explorer.explore_type for more information.
"""
type_code = datatype.code
type_desc = ""
if type_code == gdb.TYPE_CODE_STRUCT:
type_desc = "struct/class"
else:
type_desc = "union"
fields = datatype.fields()
if CompoundExplorer._get_real_field_count(fields) == 0:
if is_child:
print ("%s is a %s of type '%s' with no fields." %
(name, type_desc, str(datatype)))
Explorer.return_to_enclosing_type_prompt()
else:
print ("'%s' is a %s with no fields." % (name, type_desc))
return False
if is_child:
print ("%s is a %s of type '%s' "
"with the following fields:\n" %
(name, type_desc, str(datatype)))
else:
print ("'%s' is a %s with the following "
"fields:\n" %
(name, type_desc))
has_explorable_fields = False
current_choice = 0
choice_to_compound_field_map = { }
print_list = [ ]
for field in fields:
if field.artificial:
continue
if field.is_base_class:
field_desc = "base class"
else:
field_desc = "field"
rhs = ("" %
(current_choice, field_desc, str(field.type)))
print_list.append((field.name, rhs))
choice_to_compound_field_map[str(current_choice)] = (
field.name, field.type, field_desc)
current_choice = current_choice + 1
CompoundExplorer._print_fields(print_list)
print ("")
if len(choice_to_compound_field_map) > 0:
choice = raw_input("Enter the field number of choice: ")
if choice in choice_to_compound_field_map:
if is_child:
new_name = ("%s '%s' of %s" %
(choice_to_compound_field_map[choice][2],
choice_to_compound_field_map[choice][0],
name))
else:
new_name = ("%s '%s' of '%s'" %
(choice_to_compound_field_map[choice][2],
choice_to_compound_field_map[choice][0],
name))
Explorer.explore_type(new_name,
choice_to_compound_field_map[choice][1], True)
return True
else:
if is_child:
Explorer.return_to_enclosing_type()
else:
if is_child:
Explorer.return_to_enclosing_type_prompt()
return False
class TypedefExplorer(object):
"""Internal class used to explore values whose type is a typedef."""
@staticmethod
def explore_expr(expr, value, is_child):
"""Function to explore typedef values.
See Explorer.explore_expr for more information.
"""
actual_type = value.type.strip_typedefs()
print ("The value of '%s' is of type '%s' "
"which is a typedef of type '%s'" %
(expr, str(value.type), str(actual_type)))
Explorer.explore_expr(expr, value.cast(actual_type), is_child)
return False
@staticmethod
def explore_type(name, datatype, is_child):
"""Function to explore typedef types.
See Explorer.explore_type for more information.
"""
actual_type = datatype.strip_typedefs()
if is_child:
print ("The type of %s is a typedef of type '%s'." %
(name, str(actual_type)))
else:
print ("The type '%s' is a typedef of type '%s'." %
(name, str(actual_type)))
Explorer.explore_type(name, actual_type, is_child)
return False
class ExploreUtils(object):
"""Internal class which provides utilities for the main command classes."""
@staticmethod
def check_args(name, arg_str):
"""Utility to check if adequate number of arguments are passed to an
explore command.
Arguments:
name: The name of the explore command.
arg_str: The argument string passed to the explore command.
Returns:
True if adequate arguments are passed, false otherwise.
Raises:
gdb.GdbError if adequate arguments are not passed.
"""
if len(arg_str) < 1:
raise gdb.GdbError("ERROR: '%s' requires an argument."
% name)
return False
else:
return True
@staticmethod
def get_type_from_str(type_str):
"""A utility function to deduce the gdb.Type value from a string
representing the type.
Arguments:
type_str: The type string from which the gdb.Type value should be
deduced.
Returns:
The deduced gdb.Type value if possible, None otherwise.
"""
try:
# Assume the current language to be C/C++ and make a try.
return gdb.parse_and_eval("(%s *)0" % type_str).type.target()
except RuntimeError:
# If assumption of current language to be C/C++ was wrong, then
# lookup the type using the API.
try:
return gdb.lookup_type(type_str)
except RuntimeError:
return None
@staticmethod
def get_value_from_str(value_str):
"""A utility function to deduce the gdb.Value value from a string
representing the value.
Arguments:
value_str: The value string from which the gdb.Value value should
be deduced.
Returns:
The deduced gdb.Value value if possible, None otherwise.
"""
try:
return gdb.parse_and_eval(value_str)
except RuntimeError:
return None
class ExploreCommand(gdb.Command):
"""Explore a value or a type valid in the current context.
Usage:
explore ARG
- ARG is either a valid expression or a type name.
- At any stage of exploration, hit the return key (instead of a
choice, if any) to return to the enclosing type or value.
"""
def __init__(self):
super(ExploreCommand, self).__init__(name = "explore",
command_class = gdb.COMMAND_DATA,
prefix = True)
def invoke(self, arg_str, from_tty):
if ExploreUtils.check_args("explore", arg_str) == False:
return
# Check if it is a value
value = ExploreUtils.get_value_from_str(arg_str)
if value is not None:
Explorer.explore_expr(arg_str, value, False)
return
# If it is not a value, check if it is a type
datatype = ExploreUtils.get_type_from_str(arg_str)
if datatype is not None:
Explorer.explore_type(arg_str, datatype, False)
return
# If it is neither a value nor a type, raise an error.
raise gdb.GdbError(
("'%s' neither evaluates to a value nor is a type "
"in the current context." %
arg_str))
class ExploreValueCommand(gdb.Command):
"""Explore value of an expression valid in the current context.
Usage:
explore value ARG
- ARG is a valid expression.
- At any stage of exploration, hit the return key (instead of a
choice, if any) to return to the enclosing value.
"""
def __init__(self):
super(ExploreValueCommand, self).__init__(
name = "explore value", command_class = gdb.COMMAND_DATA)
def invoke(self, arg_str, from_tty):
if ExploreUtils.check_args("explore value", arg_str) == False:
return
value = ExploreUtils.get_value_from_str(arg_str)
if value is None:
raise gdb.GdbError(
(" '%s' does not evaluate to a value in the current "
"context." %
arg_str))
return
Explorer.explore_expr(arg_str, value, False)
class ExploreTypeCommand(gdb.Command):
"""Explore a type or the type of an expression valid in the current
context.
Usage:
explore type ARG
- ARG is a valid expression or a type name.
- At any stage of exploration, hit the return key (instead of a
choice, if any) to return to the enclosing type.
"""
def __init__(self):
super(ExploreTypeCommand, self).__init__(
name = "explore type", command_class = gdb.COMMAND_DATA)
def invoke(self, arg_str, from_tty):
if ExploreUtils.check_args("explore type", arg_str) == False:
return
datatype = ExploreUtils.get_type_from_str(arg_str)
if datatype is not None:
Explorer.explore_type(arg_str, datatype, False)
return
value = ExploreUtils.get_value_from_str(arg_str)
if value is not None:
print ("'%s' is of type '%s'." % (arg_str, str(value.type)))
Explorer.explore_type(str(value.type), value.type, False)
return
raise gdb.GdbError(("'%s' is not a type or value in the current "
"context." % arg_str))
Explorer.init_env()
ExploreCommand()
ExploreValueCommand()
ExploreTypeCommand()
PK ! >xж ¶ python/gdb/command/__init__.pynu „[µü¤ # Copyright (C) 2010-2018 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 .
PK ! ¨ÄÅŠ8 Š8 % python/gdb/command/pretty_printers.pynu „[µü¤ # Pretty-printer commands.
# Copyright (C) 2010-2018 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 .
"""GDB commands for working with pretty-printers."""
import copy
import gdb
import re
def parse_printer_regexps(arg):
"""Internal utility to parse a pretty-printer command argv.
Arguments:
arg: The arguments to the command. The format is:
[object-regexp [name-regexp]].
Individual printers in a collection are named as
printer-name;subprinter-name.
Returns:
The result is a 3-tuple of compiled regular expressions, except that
the resulting compiled subprinter regexp is None if not provided.
Raises:
SyntaxError: an error processing ARG
"""
argv = gdb.string_to_argv(arg);
argc = len(argv)
object_regexp = "" # match everything
name_regexp = "" # match everything
subname_regexp = None
if argc > 3:
raise SyntaxError("too many arguments")
if argc >= 1:
object_regexp = argv[0]
if argc >= 2:
name_subname = argv[1].split(";", 1)
name_regexp = name_subname[0]
if len(name_subname) == 2:
subname_regexp = name_subname[1]
# That re.compile raises SyntaxError was determined empirically.
# We catch it and reraise it to provide a slightly more useful
# error message for the user.
try:
object_re = re.compile(object_regexp)
except SyntaxError:
raise SyntaxError("invalid object regexp: %s" % object_regexp)
try:
name_re = re.compile (name_regexp)
except SyntaxError:
raise SyntaxError("invalid name regexp: %s" % name_regexp)
if subname_regexp is not None:
try:
subname_re = re.compile(subname_regexp)
except SyntaxError:
raise SyntaxError("invalid subname regexp: %s" % subname_regexp)
else:
subname_re = None
return(object_re, name_re, subname_re)
def printer_enabled_p(printer):
"""Internal utility to see if printer (or subprinter) is enabled."""
if hasattr(printer, "enabled"):
return printer.enabled
else:
return True
class InfoPrettyPrinter(gdb.Command):
"""GDB command to list all registered pretty-printers.
Usage: info pretty-printer [object-regexp [name-regexp]]
OBJECT-REGEXP is a regular expression matching the objects to list.
Objects are "global", the program space's file, and the objfiles within
that program space.
NAME-REGEXP matches the name of the pretty-printer.
Individual printers in a collection are named as
printer-name;subprinter-name.
"""
def __init__ (self):
super(InfoPrettyPrinter, self).__init__("info pretty-printer",
gdb.COMMAND_DATA)
@staticmethod
def enabled_string(printer):
"""Return "" if PRINTER is enabled, otherwise " [disabled]"."""
if printer_enabled_p(printer):
return ""
else:
return " [disabled]"
@staticmethod
def printer_name(printer):
"""Return the printer's name."""
if hasattr(printer, "name"):
return printer.name
if hasattr(printer, "__name__"):
return printer.__name__
# This "shouldn't happen", but the public API allows for
# direct additions to the pretty-printer list, and we shouldn't
# crash because someone added a bogus printer.
# Plus we want to give the user a way to list unknown printers.
return "unknown"
def list_pretty_printers(self, pretty_printers, name_re, subname_re):
"""Print a list of pretty-printers."""
# A potential enhancement is to provide an option to list printers in
# "lookup order" (i.e. unsorted).
sorted_pretty_printers = sorted (copy.copy(pretty_printers),
key = self.printer_name)
for printer in sorted_pretty_printers:
name = self.printer_name(printer)
enabled = self.enabled_string(printer)
if name_re.match(name):
print (" %s%s" % (name, enabled))
if (hasattr(printer, "subprinters") and
printer.subprinters is not None):
sorted_subprinters = sorted (copy.copy(printer.subprinters),
key = self.printer_name)
for subprinter in sorted_subprinters:
if (not subname_re or
subname_re.match(subprinter.name)):
print (" %s%s" %
(subprinter.name,
self.enabled_string(subprinter)))
def invoke1(self, title, printer_list,
obj_name_to_match, object_re, name_re, subname_re):
"""Subroutine of invoke to simplify it."""
if printer_list and object_re.match(obj_name_to_match):
print (title)
self.list_pretty_printers(printer_list, name_re, subname_re)
def invoke(self, arg, from_tty):
"""GDB calls this to perform the command."""
(object_re, name_re, subname_re) = parse_printer_regexps(arg)
self.invoke1("global pretty-printers:", gdb.pretty_printers,
"global", object_re, name_re, subname_re)
cp = gdb.current_progspace()
self.invoke1("progspace %s pretty-printers:" % cp.filename,
cp.pretty_printers, "progspace",
object_re, name_re, subname_re)
for objfile in gdb.objfiles():
self.invoke1(" objfile %s pretty-printers:" % objfile.filename,
objfile.pretty_printers, objfile.filename,
object_re, name_re, subname_re)
def count_enabled_printers(pretty_printers):
"""Return a 2-tuple of number of enabled and total printers."""
enabled = 0
total = 0
for printer in pretty_printers:
if (hasattr(printer, "subprinters")
and printer.subprinters is not None):
if printer_enabled_p(printer):
for subprinter in printer.subprinters:
if printer_enabled_p(subprinter):
enabled += 1
total += len(printer.subprinters)
else:
if printer_enabled_p(printer):
enabled += 1
total += 1
return (enabled, total)
def count_all_enabled_printers():
"""Return a 2-tuble of the enabled state and total number of all printers.
This includes subprinters.
"""
enabled_count = 0
total_count = 0
(t_enabled, t_total) = count_enabled_printers(gdb.pretty_printers)
enabled_count += t_enabled
total_count += t_total
(t_enabled, t_total) = count_enabled_printers(gdb.current_progspace().pretty_printers)
enabled_count += t_enabled
total_count += t_total
for objfile in gdb.objfiles():
(t_enabled, t_total) = count_enabled_printers(objfile.pretty_printers)
enabled_count += t_enabled
total_count += t_total
return (enabled_count, total_count)
def pluralize(text, n, suffix="s"):
"""Return TEXT pluralized if N != 1."""
if n != 1:
return "%s%s" % (text, suffix)
else:
return text
def show_pretty_printer_enabled_summary():
"""Print the number of printers enabled/disabled.
We count subprinters individually.
"""
(enabled_count, total_count) = count_all_enabled_printers()
print ("%d of %d printers enabled" % (enabled_count, total_count))
def do_enable_pretty_printer_1 (pretty_printers, name_re, subname_re, flag):
"""Worker for enabling/disabling pretty-printers.
Arguments:
pretty_printers: list of pretty-printers
name_re: regular-expression object to select printers
subname_re: regular expression object to select subprinters or None
if all are affected
flag: True for Enable, False for Disable
Returns:
The number of printers affected.
This is just for informational purposes for the user.
"""
total = 0
for printer in pretty_printers:
if (hasattr(printer, "name") and name_re.match(printer.name) or
hasattr(printer, "__name__") and name_re.match(printer.__name__)):
if (hasattr(printer, "subprinters") and
printer.subprinters is not None):
if not subname_re:
# Only record printers that change state.
if printer_enabled_p(printer) != flag:
for subprinter in printer.subprinters:
if printer_enabled_p(subprinter):
total += 1
# NOTE: We preserve individual subprinter settings.
printer.enabled = flag
else:
# NOTE: Whether this actually disables the subprinter
# depends on whether the printer's lookup function supports
# the "enable" API. We can only assume it does.
for subprinter in printer.subprinters:
if subname_re.match(subprinter.name):
# Only record printers that change state.
if (printer_enabled_p(printer) and
printer_enabled_p(subprinter) != flag):
total += 1
subprinter.enabled = flag
else:
# This printer has no subprinters.
# If the user does "disable pretty-printer .* .* foo"
# should we disable printers that don't have subprinters?
# How do we apply "foo" in this context? Since there is no
# "foo" subprinter it feels like we should skip this printer.
# There's still the issue of how to handle
# "disable pretty-printer .* .* .*", and every other variation
# that can match everything. For now punt and only support
# "disable pretty-printer .* .*" (i.e. subname is elided)
# to disable everything.
if not subname_re:
# Only record printers that change state.
if printer_enabled_p(printer) != flag:
total += 1
printer.enabled = flag
return total
def do_enable_pretty_printer (arg, flag):
"""Internal worker for enabling/disabling pretty-printers."""
(object_re, name_re, subname_re) = parse_printer_regexps(arg)
total = 0
if object_re.match("global"):
total += do_enable_pretty_printer_1(gdb.pretty_printers,
name_re, subname_re, flag)
cp = gdb.current_progspace()
if object_re.match("progspace"):
total += do_enable_pretty_printer_1(cp.pretty_printers,
name_re, subname_re, flag)
for objfile in gdb.objfiles():
if object_re.match(objfile.filename):
total += do_enable_pretty_printer_1(objfile.pretty_printers,
name_re, subname_re, flag)
if flag:
state = "enabled"
else:
state = "disabled"
print ("%d %s %s" % (total, pluralize("printer", total), state))
# Print the total list of printers currently enabled/disabled.
# This is to further assist the user in determining whether the result
# is expected. Since we use regexps to select it's useful.
show_pretty_printer_enabled_summary()
# Enable/Disable one or more pretty-printers.
#
# This is intended for use when a broken pretty-printer is shipped/installed
# and the user wants to disable that printer without disabling all the other
# printers.
#
# A useful addition would be -v (verbose) to show each printer affected.
class EnablePrettyPrinter (gdb.Command):
"""GDB command to enable the specified pretty-printer.
Usage: enable pretty-printer [object-regexp [name-regexp]]
OBJECT-REGEXP is a regular expression matching the objects to examine.
Objects are "global", the program space's file, and the objfiles within
that program space.
NAME-REGEXP matches the name of the pretty-printer.
Individual printers in a collection are named as
printer-name;subprinter-name.
"""
def __init__(self):
super(EnablePrettyPrinter, self).__init__("enable pretty-printer",
gdb.COMMAND_DATA)
def invoke(self, arg, from_tty):
"""GDB calls this to perform the command."""
do_enable_pretty_printer(arg, True)
class DisablePrettyPrinter (gdb.Command):
"""GDB command to disable the specified pretty-printer.
Usage: disable pretty-printer [object-regexp [name-regexp]]
OBJECT-REGEXP is a regular expression matching the objects to examine.
Objects are "global", the program space's file, and the objfiles within
that program space.
NAME-REGEXP matches the name of the pretty-printer.
Individual printers in a collection are named as
printer-name;subprinter-name.
"""
def __init__(self):
super(DisablePrettyPrinter, self).__init__("disable pretty-printer",
gdb.COMMAND_DATA)
def invoke(self, arg, from_tty):
"""GDB calls this to perform the command."""
do_enable_pretty_printer(arg, False)
def register_pretty_printer_commands():
"""Call from a top level script to install the pretty-printer commands."""
InfoPrettyPrinter()
EnablePrettyPrinter()
DisablePrettyPrinter()
register_pretty_printer_commands()
PK ! Ǩ'ö python/gdb/command/prompt.pynu „[µü¤ # Extended prompt.
# Copyright (C) 2011-2018 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 .
"""GDB command for working with extended prompts."""
import gdb
import gdb.prompt
class _ExtendedPrompt(gdb.Parameter):
"""Set the extended prompt.
Usage: set extended-prompt VALUE
Substitutions are applied to VALUE to compute the real prompt.
The currently defined substitutions are:
"""
# Add the prompt library's dynamically generated help to the
# __doc__ string.
__doc__ = __doc__ + gdb.prompt.prompt_help()
set_doc = "Set the extended prompt."
show_doc = "Show the extended prompt."
def __init__(self):
super(_ExtendedPrompt, self).__init__("extended-prompt",
gdb.COMMAND_SUPPORT,
gdb.PARAM_STRING_NOESCAPE)
self.value = ''
self.hook_set = False
def get_show_string (self, pvalue):
if self.value is not '':
return "The extended prompt is: " + self.value
else:
return "The extended prompt is not set."
def get_set_string (self):
if self.hook_set == False:
gdb.prompt_hook = self.before_prompt_hook
self.hook_set = True
return ""
def before_prompt_hook(self, current):
if self.value is not '':
return gdb.prompt.substitute_prompt(self.value)
else:
return None
_ExtendedPrompt()
PK ! ¬žlyÏ' Ï' python/gdb/command/xmethods.pynu „[µü¤ # Xmethod commands.
# Copyright 2013-2018 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 .
import gdb
import re
"""GDB commands for working with xmethods."""
def validate_xm_regexp(part_name, regexp):
try:
return re.compile(regexp)
except SyntaxError:
raise SyntaxError("Invalid %s regexp: %s", part_name, regexp)
def parse_xm_command_args(arg):
"""Parses the arguments passed to a xmethod command.
Arguments:
arg: The argument string passed to a xmethod command.
Returns:
A 3-tuple: (,
,
)
"""
argv = gdb.string_to_argv(arg)
argc = len(argv)
if argc > 2:
raise SyntaxError("Too many arguments to command.")
locus_regexp = ""
matcher_name_regexp = ""
xm_name_regexp = None
if argc >= 1:
locus_regexp = argv[0]
if argc == 2:
parts = argv[1].split(";", 1)
matcher_name_regexp = parts[0]
if len(parts) > 1:
xm_name_regexp = parts[1]
if xm_name_regexp:
name_re = validate_xm_regexp("xmethod name", xm_name_regexp)
else:
name_re = None
return (validate_xm_regexp("locus", locus_regexp),
validate_xm_regexp("matcher name", matcher_name_regexp),
name_re)
def get_global_method_matchers(locus_re, matcher_re):
"""Returns a dict of matching globally registered xmethods.
Arguments:
locus_re: Even though only globally registered xmethods are
looked up, they will be looked up only if 'global' matches
LOCUS_RE.
matcher_re: The regular expression matching the names of xmethods.
Returns:
A dict of matching globally registered xmethod matchers. The only
key in the dict will be 'global'.
"""
locus_str = "global"
xm_dict = { locus_str: [] }
if locus_re.match("global"):
xm_dict[locus_str].extend(
[m for m in gdb.xmethods if matcher_re.match(m.name)])
return xm_dict
def get_method_matchers_in_loci(loci, locus_re, matcher_re):
"""Returns a dict of matching registered xmethods in the LOCI.
Arguments:
loci: The list of loci to lookup matching xmethods in.
locus_re: If a locus is an objfile, then xmethod matchers will be
looked up in it only if its filename matches the regular
expression LOCUS_RE. If a locus is the current progspace,
then xmethod matchers will be looked up in it only if the
string "progspace" matches LOCUS_RE.
matcher_re: The regular expression to match the xmethod matcher
names.
Returns:
A dict of matching xmethod matchers. The keys of the dict are the
filenames of the loci the xmethod matchers belong to.
"""
xm_dict = {}
for locus in loci:
if isinstance(locus, gdb.Progspace):
if not locus_re.match('progspace'):
continue
locus_type = "progspace"
else:
if not locus_re.match(locus.filename):
continue
locus_type = "objfile"
locus_str = "%s %s" % (locus_type, locus.filename)
xm_dict[locus_str] = [
m for m in locus.xmethods if matcher_re.match(m.name)]
return xm_dict
def print_xm_info(xm_dict, name_re):
"""Print a dictionary of xmethods."""
def get_status_string(m):
if not m.enabled:
return " [disabled]"
else:
return ""
if not xm_dict:
return
for locus_str in xm_dict:
if not xm_dict[locus_str]:
continue
print ("Xmethods in %s:" % locus_str)
for matcher in xm_dict[locus_str]:
print (" %s%s" % (matcher.name, get_status_string(matcher)))
if not matcher.methods:
continue
for m in matcher.methods:
if name_re is None or name_re.match(m.name):
print (" %s%s" % (m.name, get_status_string(m)))
def set_xm_status1(xm_dict, name_re, status):
"""Set the status (enabled/disabled) of a dictionary of xmethods."""
for locus_str, matchers in xm_dict.items():
for matcher in matchers:
if not name_re:
# If the name regex is missing, then set the status of the
# matcher and move on.
matcher.enabled = status
continue
if not matcher.methods:
# The methods attribute could be None. Move on.
continue
for m in matcher.methods:
if name_re.match(m.name):
m.enabled = status
def set_xm_status(arg, status):
"""Set the status (enabled/disabled) of xmethods matching ARG.
This is a helper function for enable/disable commands. ARG is the
argument string passed to the commands.
"""
locus_re, matcher_re, name_re = parse_xm_command_args(arg)
set_xm_status1(get_global_method_matchers(locus_re, matcher_re), name_re,
status)
set_xm_status1(
get_method_matchers_in_loci(
[gdb.current_progspace()], locus_re, matcher_re),
name_re,
status)
set_xm_status1(
get_method_matchers_in_loci(gdb.objfiles(), locus_re, matcher_re),
name_re,
status)
class InfoXMethod(gdb.Command):
"""GDB command to list registered xmethod matchers.
Usage: info xmethod [locus-regexp [name-regexp]]
LOCUS-REGEXP is a regular expression matching the location of the
xmethod matchers. If it is omitted, all registered xmethod matchers
from all loci are listed. A locus could be 'global', a regular expression
matching the current program space's filename, or a regular expression
matching filenames of objfiles. Locus could be 'progspace' to specify that
only xmethods from the current progspace should be listed.
NAME-REGEXP is a regular expression matching the names of xmethod
matchers. If this omitted for a specified locus, then all registered
xmethods in the locus are listed. To list only a certain xmethods
managed by a single matcher, the name regexp can be specified as
matcher-name-regexp;xmethod-name-regexp.
"""
def __init__(self):
super(InfoXMethod, self).__init__("info xmethod",
gdb.COMMAND_DATA)
def invoke(self, arg, from_tty):
locus_re, matcher_re, name_re = parse_xm_command_args(arg)
print_xm_info(get_global_method_matchers(locus_re, matcher_re),
name_re)
print_xm_info(
get_method_matchers_in_loci(
[gdb.current_progspace()], locus_re, matcher_re),
name_re)
print_xm_info(
get_method_matchers_in_loci(gdb.objfiles(), locus_re, matcher_re),
name_re)
class EnableXMethod(gdb.Command):
"""GDB command to enable a specified (group of) xmethod(s).
Usage: enable xmethod [locus-regexp [name-regexp]]
LOCUS-REGEXP is a regular expression matching the location of the
xmethod matchers. If it is omitted, all registered xmethods matchers
from all loci are enabled. A locus could be 'global', a regular expression
matching the current program space's filename, or a regular expression
matching filenames of objfiles. Locus could be 'progspace' to specify that
only xmethods from the current progspace should be enabled.
NAME-REGEXP is a regular expression matching the names of xmethods
within a given locus. If this omitted for a specified locus, then all
registered xmethod matchers in the locus are enabled. To enable only
a certain xmethods managed by a single matcher, the name regexp can be
specified as matcher-name-regexp;xmethod-name-regexp.
"""
def __init__(self):
super(EnableXMethod, self).__init__("enable xmethod",
gdb.COMMAND_DATA)
def invoke(self, arg, from_tty):
set_xm_status(arg, True)
class DisableXMethod(gdb.Command):
"""GDB command to disable a specified (group of) xmethod(s).
Usage: disable xmethod [locus-regexp [name-regexp]]
LOCUS-REGEXP is a regular expression matching the location of the
xmethod matchers. If it is omitted, all registered xmethod matchers
from all loci are disabled. A locus could be 'global', a regular
expression matching the current program space's filename, or a regular
expression filenames of objfiles. Locus could be 'progspace' to specify
that only xmethods from the current progspace should be disabled.
NAME-REGEXP is a regular expression matching the names of xmethods
within a given locus. If this omitted for a specified locus, then all
registered xmethod matchers in the locus are disabled. To disable
only a certain xmethods managed by a single matcher, the name regexp
can be specified as matcher-name-regexp;xmethod-name-regexp.
"""
def __init__(self):
super(DisableXMethod, self).__init__("disable xmethod",
gdb.COMMAND_DATA)
def invoke(self, arg, from_tty):
set_xm_status(arg, False)
def register_xmethod_commands():
"""Installs the xmethod commands."""
InfoXMethod()
EnableXMethod()
DisableXMethod()
register_xmethod_commands()
PK ! _.ëL L # python/gdb/command/type_printers.pynu „[µü¤ # Type printer commands.
# Copyright (C) 2010-2018 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 .
import copy
import gdb
"""GDB commands for working with type-printers."""
class InfoTypePrinter(gdb.Command):
"""GDB command to list all registered type-printers.
Usage: info type-printers
"""
def __init__ (self):
super(InfoTypePrinter, self).__init__("info type-printers",
gdb.COMMAND_DATA)
def list_type_printers(self, type_printers):
"""Print a list of type printers."""
# A potential enhancement is to provide an option to list printers in
# "lookup order" (i.e. unsorted).
sorted_type_printers = sorted (copy.copy(type_printers),
key = lambda x: x.name)
for printer in sorted_type_printers:
if printer.enabled:
enabled = ''
else:
enabled = " [disabled]"
print (" %s%s" % (printer.name, enabled))
def invoke(self, arg, from_tty):
"""GDB calls this to perform the command."""
sep = ''
for objfile in gdb.objfiles():
if objfile.type_printers:
print ("%sType printers for %s:" % (sep, objfile.filename))
self.list_type_printers(objfile.type_printers)
sep = '\n'
if gdb.current_progspace().type_printers:
print ("%sType printers for program space:" % sep)
self.list_type_printers(gdb.current_progspace().type_printers)
sep = '\n'
if gdb.type_printers:
print ("%sGlobal type printers:" % sep)
self.list_type_printers(gdb.type_printers)
class _EnableOrDisableCommand(gdb.Command):
def __init__(self, setting, name):
super(_EnableOrDisableCommand, self).__init__(name, gdb.COMMAND_DATA)
self.setting = setting
def set_some(self, name, printers):
result = False
for p in printers:
if name == p.name:
p.enabled = self.setting
result = True
return result
def invoke(self, arg, from_tty):
"""GDB calls this to perform the command."""
for name in arg.split():
ok = False
for objfile in gdb.objfiles():
if self.set_some(name, objfile.type_printers):
ok = True
if self.set_some(name, gdb.current_progspace().type_printers):
ok = True
if self.set_some(name, gdb.type_printers):
ok = True
if not ok:
print ("No type printer named '%s'" % name)
def add_some(self, result, word, printers):
for p in printers:
if p.name.startswith(word):
result.append(p.name)
def complete(self, text, word):
result = []
for objfile in gdb.objfiles():
self.add_some(result, word, objfile.type_printers)
self.add_some(result, word, gdb.current_progspace().type_printers)
self.add_some(result, word, gdb.type_printers)
return result
class EnableTypePrinter(_EnableOrDisableCommand):
"""GDB command to enable the specified type printer.
Usage: enable type-printer NAME
NAME is the name of the type-printer.
"""
def __init__(self):
super(EnableTypePrinter, self).__init__(True, "enable type-printer")
class DisableTypePrinter(_EnableOrDisableCommand):
"""GDB command to disable the specified type-printer.
Usage: disable type-printer NAME
NAME is the name of the type-printer.
"""
def __init__(self):
super(DisableTypePrinter, self).__init__(False, "disable type-printer")
InfoTypePrinter()
EnableTypePrinter()
DisableTypePrinter()
PK ! Xsîšæ æ python/gdb/command/unwinders.pynu „[µü¤ # Unwinder commands.
# Copyright 2015-2018 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 .
import gdb
import re
def validate_regexp(exp, idstring):
try:
return re.compile(exp)
except SyntaxError:
raise SyntaxError("Invalid %s regexp: %s." % (idstring, exp))
def parse_unwinder_command_args(arg):
"""Internal utility to parse unwinder command argv.
Arguments:
arg: The arguments to the command. The format is:
[locus-regexp [name-regexp]]
Returns:
A 2-tuple of compiled regular expressions.
Raises:
SyntaxError: an error processing ARG
"""
argv = gdb.string_to_argv(arg)
argc = len(argv)
if argc > 2:
raise SyntaxError("Too many arguments.")
locus_regexp = ""
name_regexp = ""
if argc >= 1:
locus_regexp = argv[0]
if argc >= 2:
name_regexp = argv[1]
return (validate_regexp(locus_regexp, "locus"),
validate_regexp(name_regexp, "unwinder"))
class InfoUnwinder(gdb.Command):
"""GDB command to list unwinders.
Usage: info unwinder [locus-regexp [name-regexp]]
LOCUS-REGEXP is a regular expression matching the location of the
unwinder. If it is omitted, all registered unwinders from all
loci are listed. A locus can be 'global', 'progspace' to list
the unwinders from the current progspace, or a regular expression
matching filenames of objfiles.
NAME-REGEXP is a regular expression to filter unwinder names. If
this omitted for a specified locus, then all registered unwinders
in the locus are listed.
"""
def __init__(self):
super(InfoUnwinder, self).__init__("info unwinder",
gdb.COMMAND_STACK)
def list_unwinders(self, title, unwinders, name_re):
"""Lists the unwinders whose name matches regexp.
Arguments:
title: The line to print before the list.
unwinders: The list of the unwinders.
name_re: unwinder name filter.
"""
if not unwinders:
return
print(title)
for unwinder in unwinders:
if name_re.match(unwinder.name):
print(" %s%s" % (unwinder.name,
"" if unwinder.enabled else " [disabled]"))
def invoke(self, arg, from_tty):
locus_re, name_re = parse_unwinder_command_args(arg)
if locus_re.match("global"):
self.list_unwinders("Global:", gdb.frame_unwinders,
name_re)
if locus_re.match("progspace"):
cp = gdb.current_progspace()
self.list_unwinders("Progspace %s:" % cp.filename,
cp.frame_unwinders, name_re)
for objfile in gdb.objfiles():
if locus_re.match(objfile.filename):
self.list_unwinders("Objfile %s:" % objfile.filename,
objfile.frame_unwinders, name_re)
def do_enable_unwinder1(unwinders, name_re, flag):
"""Enable/disable unwinders whose names match given regex.
Arguments:
unwinders: The list of unwinders.
name_re: Unwinder name filter.
flag: Enable/disable.
Returns:
The number of unwinders affected.
"""
total = 0
for unwinder in unwinders:
if name_re.match(unwinder.name):
unwinder.enabled = flag
total += 1
return total
def do_enable_unwinder(arg, flag):
"""Enable/disable unwinder(s)."""
(locus_re, name_re) = parse_unwinder_command_args(arg)
total = 0
if locus_re.match("global"):
total += do_enable_unwinder1(gdb.frame_unwinders, name_re, flag)
if locus_re.match("progspace"):
total += do_enable_unwinder1(gdb.current_progspace().frame_unwinders,
name_re, flag)
for objfile in gdb.objfiles():
if locus_re.match(objfile.filename):
total += do_enable_unwinder1(objfile.frame_unwinders, name_re,
flag)
if total > 0:
gdb.invalidate_cached_frames()
print("%d unwinder%s %s" % (total, "" if total == 1 else "s",
"enabled" if flag else "disabled"))
class EnableUnwinder(gdb.Command):
"""GDB command to enable unwinders.
Usage: enable unwinder [locus-regexp [name-regexp]]
LOCUS-REGEXP is a regular expression specifying the unwinders to
enable. It can 'global', 'progspace', or the name of an objfile
within that progspace.
NAME_REGEXP is a regular expression to filter unwinder names. If
this omitted for a specified locus, then all registered unwinders
in the locus are affected.
"""
def __init__(self):
super(EnableUnwinder, self).__init__("enable unwinder",
gdb.COMMAND_STACK)
def invoke(self, arg, from_tty):
"""GDB calls this to perform the command."""
do_enable_unwinder(arg, True)
class DisableUnwinder(gdb.Command):
"""GDB command to disable the specified unwinder.
Usage: disable unwinder [locus-regexp [name-regexp]]
LOCUS-REGEXP is a regular expression specifying the unwinders to
disable. It can 'global', 'progspace', or the name of an objfile
within that progspace.
NAME_REGEXP is a regular expression to filter unwinder names. If
this omitted for a specified locus, then all registered unwinders
in the locus are affected.
"""
def __init__(self):
super(DisableUnwinder, self).__init__("disable unwinder",
gdb.COMMAND_STACK)
def invoke(self, arg, from_tty):
"""GDB calls this to perform the command."""
do_enable_unwinder(arg, False)
def register_unwinder_commands():
"""Installs the unwinder commands."""
InfoUnwinder()
EnableUnwinder()
DisableUnwinder()
register_unwinder_commands()
PK ! Y¢�eR R # python/gdb/command/ignore_errors.pynu „[µü¤ # Ignore errors in user commands.
# Copyright (C) 2008 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 .
import gdb
class IgnoreErrorsCommand (gdb.Command):
"""Execute a single command, ignoring all errors.
Only one-line commands are supported.
This is primarily useful in scripts."""
def __init__ (self):
super (IgnoreErrorsCommand, self).__init__ ("ignore-errors",
gdb.COMMAND_OBSCURE,
# FIXME...
gdb.COMPLETE_COMMAND)
def invoke (self, arg, from_tty):
try:
gdb.execute (arg, from_tty)
except:
pass
IgnoreErrorsCommand ()
PK ! ` ÔÜ? Ü? # python/gdb/command/frame_filters.pynu „[µü¤ # Frame-filter commands.
# Copyright (C) 2013-2018 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 .
"""GDB commands for working with frame-filters."""
import sys
import gdb
import copy
from gdb.FrameIterator import FrameIterator
from gdb.FrameDecorator import FrameDecorator
import gdb.frames
import itertools
# GDB Commands.
class SetFilterPrefixCmd(gdb.Command):
"""Prefix command for 'set' frame-filter related operations."""
def __init__(self):
super(SetFilterPrefixCmd, self).__init__("set frame-filter",
gdb.COMMAND_OBSCURE,
gdb.COMPLETE_NONE, True)
class ShowFilterPrefixCmd(gdb.Command):
"""Prefix command for 'show' frame-filter related operations."""
def __init__(self):
super(ShowFilterPrefixCmd, self).__init__("show frame-filter",
gdb.COMMAND_OBSCURE,
gdb.COMPLETE_NONE, True)
class InfoFrameFilter(gdb.Command):
"""List all registered Python frame-filters.
Usage: info frame-filters
"""
def __init__(self):
super(InfoFrameFilter, self).__init__("info frame-filter",
gdb.COMMAND_DATA)
@staticmethod
def enabled_string(state):
"""Return "Yes" if filter is enabled, otherwise "No"."""
if state:
return "Yes"
else:
return "No"
def print_list(self, title, frame_filters, blank_line):
sorted_frame_filters = sorted(frame_filters.items(),
key=lambda i: gdb.frames.get_priority(i[1]),
reverse=True)
if len(sorted_frame_filters) == 0:
return 0
print(title)
print(" Priority Enabled Name")
for frame_filter in sorted_frame_filters:
name = frame_filter[0]
try:
priority = '{:<8}'.format(
str(gdb.frames.get_priority(frame_filter[1])))
enabled = '{:<7}'.format(
self.enabled_string(gdb.frames.get_enabled(frame_filter[1])))
print(" %s %s %s" % (priority, enabled, name))
except Exception:
e = sys.exc_info()[1]
print(" Error printing filter '"+name+"': "+str(e))
if blank_line:
print("")
return 1
def invoke(self, arg, from_tty):
any_printed = self.print_list("global frame-filters:", gdb.frame_filters, True)
cp = gdb.current_progspace()
any_printed += self.print_list("progspace %s frame-filters:" % cp.filename,
cp.frame_filters, True)
for objfile in gdb.objfiles():
any_printed += self.print_list("objfile %s frame-filters:" % objfile.filename,
objfile.frame_filters, False)
if any_printed == 0:
print ("No frame filters.")
# Internal enable/disable functions.
def _enable_parse_arg(cmd_name, arg):
""" Internal worker function to take an argument from
enable/disable and return a tuple of arguments.
Arguments:
cmd_name: Name of the command invoking this function.
args: The argument as a string.
Returns:
A tuple containing the dictionary, and the argument, or just
the dictionary in the case of "all".
"""
argv = gdb.string_to_argv(arg);
argc = len(argv)
if argv[0] == "all" and argc > 1:
raise gdb.GdbError(cmd_name + ": with 'all' " \
"you may not specify a filter.")
else:
if argv[0] != "all" and argc != 2:
raise gdb.GdbError(cmd_name + " takes exactly two arguments.")
return argv
def _do_enable_frame_filter(command_tuple, flag):
"""Worker for enabling/disabling frame_filters.
Arguments:
command_type: A tuple with the first element being the
frame filter dictionary, and the second being
the frame filter name.
flag: True for Enable, False for Disable.
"""
list_op = command_tuple[0]
op_list = gdb.frames.return_list(list_op)
if list_op == "all":
for item in op_list:
gdb.frames.set_enabled(item, flag)
else:
frame_filter = command_tuple[1]
try:
ff = op_list[frame_filter]
except KeyError:
msg = "frame-filter '" + str(frame_filter) + "' not found."
raise gdb.GdbError(msg)
gdb.frames.set_enabled(ff, flag)
def _complete_frame_filter_list(text, word, all_flag):
"""Worker for frame filter dictionary name completion.
Arguments:
text: The full text of the command line.
word: The most recent word of the command line.
all_flag: Whether to include the word "all" in completion.
Returns:
A list of suggested frame filter dictionary name completions
from text/word analysis. This list can be empty when there
are no suggestions for completion.
"""
if all_flag == True:
filter_locations = ["all", "global", "progspace"]
else:
filter_locations = ["global", "progspace"]
for objfile in gdb.objfiles():
filter_locations.append(objfile.filename)
# If the user just asked for completions with no completion
# hints, just return all the frame filter dictionaries we know
# about.
if (text == ""):
return filter_locations
# Otherwise filter on what we know.
flist = filter(lambda x,y=text:x.startswith(y), filter_locations)
# If we only have one completion, complete it and return it.
if len(flist) == 1:
flist[0] = flist[0][len(text)-len(word):]
# Otherwise, return an empty list, or a list of frame filter
# dictionaries that the previous filter operation returned.
return flist
def _complete_frame_filter_name(word, printer_dict):
"""Worker for frame filter name completion.
Arguments:
word: The most recent word of the command line.
printer_dict: The frame filter dictionary to search for frame
filter name completions.
Returns: A list of suggested frame filter name completions
from word analysis of the frame filter dictionary. This list
can be empty when there are no suggestions for completion.
"""
printer_keys = printer_dict.keys()
if (word == ""):
return printer_keys
flist = filter(lambda x,y=word:x.startswith(y), printer_keys)
return flist
class EnableFrameFilter(gdb.Command):
"""GDB command to disable the specified frame-filter.
Usage: enable frame-filter enable DICTIONARY [NAME]
DICTIONARY is the name of the frame filter dictionary on which to
operate. If dictionary is set to "all", perform operations on all
dictionaries. Named dictionaries are: "global" for the global
frame filter dictionary, "progspace" for the program space's frame
filter dictionary. If either all, or the two named dictionaries
are not specified, the dictionary name is assumed to be the name
of the object-file name.
NAME matches the name of the frame-filter to operate on. If
DICTIONARY is "all", NAME is ignored.
"""
def __init__(self):
super(EnableFrameFilter, self).__init__("enable frame-filter",
gdb.COMMAND_DATA)
def complete(self, text, word):
"""Completion function for both frame filter dictionary, and
frame filter name."""
if text.count(" ") == 0:
return _complete_frame_filter_list(text, word, True)
else:
printer_list = gdb.frames.return_list(text.split()[0].rstrip())
return _complete_frame_filter_name(word, printer_list)
def invoke(self, arg, from_tty):
command_tuple = _enable_parse_arg("enable frame-filter", arg)
_do_enable_frame_filter(command_tuple, True)
class DisableFrameFilter(gdb.Command):
"""GDB command to disable the specified frame-filter.
Usage: disable frame-filter disable DICTIONARY [NAME]
DICTIONARY is the name of the frame filter dictionary on which to
operate. If dictionary is set to "all", perform operations on all
dictionaries. Named dictionaries are: "global" for the global
frame filter dictionary, "progspace" for the program space's frame
filter dictionary. If either all, or the two named dictionaries
are not specified, the dictionary name is assumed to be the name
of the object-file name.
NAME matches the name of the frame-filter to operate on. If
DICTIONARY is "all", NAME is ignored.
"""
def __init__(self):
super(DisableFrameFilter, self).__init__("disable frame-filter",
gdb.COMMAND_DATA)
def complete(self, text, word):
"""Completion function for both frame filter dictionary, and
frame filter name."""
if text.count(" ") == 0:
return _complete_frame_filter_list(text, word, True)
else:
printer_list = gdb.frames.return_list(text.split()[0].rstrip())
return _complete_frame_filter_name(word, printer_list)
def invoke(self, arg, from_tty):
command_tuple = _enable_parse_arg("disable frame-filter", arg)
_do_enable_frame_filter(command_tuple, False)
class SetFrameFilterPriority(gdb.Command):
"""GDB command to set the priority of the specified frame-filter.
Usage: set frame-filter priority DICTIONARY NAME PRIORITY
DICTIONARY is the name of the frame filter dictionary on which to
operate. Named dictionaries are: "global" for the global frame
filter dictionary, "progspace" for the program space's framefilter
dictionary. If either of these two are not specified, the
dictionary name is assumed to be the name of the object-file name.
NAME matches the name of the frame filter to operate on.
PRIORITY is the an integer to assign the new priority to the frame
filter.
"""
def __init__(self):
super(SetFrameFilterPriority, self).__init__("set frame-filter " \
"priority",
gdb.COMMAND_DATA)
def _parse_pri_arg(self, arg):
"""Internal worker to parse a priority from a tuple.
Arguments:
arg: Tuple which contains the arguments from the command.
Returns:
A tuple containing the dictionary, name and priority from
the arguments.
Raises:
gdb.GdbError: An error parsing the arguments.
"""
argv = gdb.string_to_argv(arg);
argc = len(argv)
if argc != 3:
print("set frame-filter priority " \
"takes exactly three arguments.")
return None
return argv
def _set_filter_priority(self, command_tuple):
"""Internal worker for setting priority of frame-filters, by
parsing a tuple and calling _set_priority with the parsed
tuple.
Arguments:
command_tuple: Tuple which contains the arguments from the
command.
"""
list_op = command_tuple[0]
frame_filter = command_tuple[1]
# GDB returns arguments as a string, so convert priority to
# a number.
priority = int(command_tuple[2])
op_list = gdb.frames.return_list(list_op)
try:
ff = op_list[frame_filter]
except KeyError:
msg = "frame-filter '" + str(frame_filter) + "' not found."
raise gdb.GdbError(msg)
gdb.frames.set_priority(ff, priority)
def complete(self, text, word):
"""Completion function for both frame filter dictionary, and
frame filter name."""
if text.count(" ") == 0:
return _complete_frame_filter_list(text, word, False)
else:
printer_list = gdb.frames.return_list(text.split()[0].rstrip())
return _complete_frame_filter_name(word, printer_list)
def invoke(self, arg, from_tty):
command_tuple = self._parse_pri_arg(arg)
if command_tuple != None:
self._set_filter_priority(command_tuple)
class ShowFrameFilterPriority(gdb.Command):
"""GDB command to show the priority of the specified frame-filter.
Usage: show frame-filter priority DICTIONARY NAME
DICTIONARY is the name of the frame filter dictionary on which to
operate. Named dictionaries are: "global" for the global frame
filter dictionary, "progspace" for the program space's framefilter
dictionary. If either of these two are not specified, the
dictionary name is assumed to be the name of the object-file name.
NAME matches the name of the frame-filter to operate on.
"""
def __init__(self):
super(ShowFrameFilterPriority, self).__init__("show frame-filter " \
"priority",
gdb.COMMAND_DATA)
def _parse_pri_arg(self, arg):
"""Internal worker to parse a dictionary and name from a
tuple.
Arguments:
arg: Tuple which contains the arguments from the command.
Returns:
A tuple containing the dictionary, and frame filter name.
Raises:
gdb.GdbError: An error parsing the arguments.
"""
argv = gdb.string_to_argv(arg);
argc = len(argv)
if argc != 2:
print("show frame-filter priority " \
"takes exactly two arguments.")
return None
return argv
def get_filter_priority(self, frame_filters, name):
"""Worker for retrieving the priority of frame_filters.
Arguments:
frame_filters: Name of frame filter dictionary.
name: object to select printers.
Returns:
The priority of the frame filter.
Raises:
gdb.GdbError: A frame filter cannot be found.
"""
op_list = gdb.frames.return_list(frame_filters)
try:
ff = op_list[name]
except KeyError:
msg = "frame-filter '" + str(name) + "' not found."
raise gdb.GdbError(msg)
return gdb.frames.get_priority(ff)
def complete(self, text, word):
"""Completion function for both frame filter dictionary, and
frame filter name."""
if text.count(" ") == 0:
return _complete_frame_filter_list(text, word, False)
else:
printer_list = frame._return_list(text.split()[0].rstrip())
return _complete_frame_filter_name(word, printer_list)
def invoke(self, arg, from_tty):
command_tuple = self._parse_pri_arg(arg)
if command_tuple == None:
return
filter_name = command_tuple[1]
list_name = command_tuple[0]
try:
priority = self.get_filter_priority(list_name, filter_name);
except Exception:
e = sys.exc_info()[1]
print("Error printing filter priority for '"+name+"':"+str(e))
else:
print("Priority of filter '" + filter_name + "' in list '" \
+ list_name + "' is: " + str(priority))
# Register commands
SetFilterPrefixCmd()
ShowFilterPrefixCmd()
InfoFrameFilter()
EnableFrameFilter()
DisableFrameFilter()
SetFrameFilterPriority()
ShowFrameFilterPriority()
PK ! ýë"�E+ E+ python/gdb/xmethod.pynu „[µü¤ # Python side of the support for xmethods.
# Copyright (C) 2013-2018 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 .
"""Utilities for defining xmethods"""
import gdb
import re
import sys
if sys.version_info[0] > 2:
# Python 3 removed basestring and long
basestring = str
long = int
class XMethod(object):
"""Base class (or a template) for an xmethod description.
Currently, the description requires only the 'name' and 'enabled'
attributes. Description objects are managed by 'XMethodMatcher'
objects (see below). Note that this is only a template for the
interface of the XMethodMatcher.methods objects. One could use
this class or choose to use an object which supports this exact same
interface. Also, an XMethodMatcher can choose not use it 'methods'
attribute. In such cases this class (or an equivalent) is not used.
Attributes:
name: The name of the xmethod.
enabled: A boolean indicating if the xmethod is enabled.
"""
def __init__(self, name):
self.name = name
self.enabled = True
class XMethodMatcher(object):
"""Abstract base class for matching an xmethod.
When looking for xmethods, GDB invokes the `match' method of a
registered xmethod matcher to match the object type and method name.
The `match' method in concrete classes derived from this class should
return an `XMethodWorker' object, or a list of `XMethodWorker'
objects if there is a match (see below for 'XMethodWorker' class).
Attributes:
name: The name of the matcher.
enabled: A boolean indicating if the matcher is enabled.
methods: A sequence of objects of type 'XMethod', or objects
which have at least the attributes of an 'XMethod' object.
This list is used by the 'enable'/'disable'/'info' commands to
enable/disable/list the xmethods registered with GDB. See
the 'match' method below to know how this sequence is used.
This attribute is None if the matcher chooses not have any
xmethods managed by it.
"""
def __init__(self, name):
"""
Args:
name: An identifying name for the xmethod or the group of
xmethods returned by the `match' method.
"""
self.name = name
self.enabled = True
self.methods = None
def match(self, class_type, method_name):
"""Match class type and method name.
In derived classes, it should return an XMethodWorker object, or a
sequence of 'XMethodWorker' objects. Only those xmethod workers
whose corresponding 'XMethod' descriptor object is enabled should be
returned.
Args:
class_type: The class type (gdb.Type object) to match.
method_name: The name (string) of the method to match.
"""
raise NotImplementedError("XMethodMatcher match")
class XMethodWorker(object):
"""Base class for all xmethod workers defined in Python.
An xmethod worker is an object which matches the method arguments, and
invokes the method when GDB wants it to. Internally, GDB first invokes the
'get_arg_types' method to perform overload resolution. If GDB selects to
invoke this Python xmethod, then it invokes it via the overridden
'__call__' method. The 'get_result_type' method is used to implement
'ptype' on the xmethod.
Derived classes should override the 'get_arg_types', 'get_result_type'
and '__call__' methods.
"""
def get_arg_types(self):
"""Return arguments types of an xmethod.
A sequence of gdb.Type objects corresponding to the arguments of the
xmethod are returned. If the xmethod takes no arguments, then 'None'
or an empty sequence is returned. If the xmethod takes only a single
argument, then a gdb.Type object or a sequence with a single gdb.Type
element is returned.
"""
raise NotImplementedError("XMethodWorker get_arg_types")
def get_result_type(self, *args):
"""Return the type of the result of the xmethod.
Args:
args: Arguments to the method. Each element of the tuple is a
gdb.Value object. The first element is the 'this' pointer
value. These are the same arguments passed to '__call__'.
Returns:
A gdb.Type object representing the type of the result of the
xmethod.
"""
raise NotImplementedError("XMethodWorker get_result_type")
def __call__(self, *args):
"""Invoke the xmethod.
Args:
args: Arguments to the method. Each element of the tuple is a
gdb.Value object. The first element is the 'this' pointer
value.
Returns:
A gdb.Value corresponding to the value returned by the xmethod.
Returns 'None' if the method does not return anything.
"""
raise NotImplementedError("XMethodWorker __call__")
class SimpleXMethodMatcher(XMethodMatcher):
"""A utility class to implement simple xmethod mathers and workers.
See the __init__ method below for information on how instances of this
class can be used.
For simple classes and methods, one can choose to use this class. For
complex xmethods, which need to replace/implement template methods on
possibly template classes, one should implement their own xmethod
matchers and workers. See py-xmethods.py in testsuite/gdb.python
directory of the GDB source tree for examples.
"""
class SimpleXMethodWorker(XMethodWorker):
def __init__(self, method_function, arg_types):
self._arg_types = arg_types
self._method_function = method_function
def get_arg_types(self):
return self._arg_types
def __call__(self, *args):
return self._method_function(*args)
def __init__(self, name, class_matcher, method_matcher, method_function,
*arg_types):
"""
Args:
name: Name of the xmethod matcher.
class_matcher: A regular expression used to match the name of the
class whose method this xmethod is implementing/replacing.
method_matcher: A regular expression used to match the name of the
method this xmethod is implementing/replacing.
method_function: A Python callable which would be called via the
'invoke' method of the worker returned by the objects of this
class. This callable should accept the object (*this) as the
first argument followed by the rest of the arguments to the
method. All arguments to this function should be gdb.Value
objects.
arg_types: The gdb.Type objects corresponding to the arguments that
this xmethod takes. It can be None, or an empty sequence,
or a single gdb.Type object, or a sequence of gdb.Type objects.
"""
XMethodMatcher.__init__(self, name)
assert callable(method_function), (
"The 'method_function' argument to 'SimpleXMethodMatcher' "
"__init__ method should be a callable.")
self._method_function = method_function
self._class_matcher = class_matcher
self._method_matcher = method_matcher
self._arg_types = arg_types
def match(self, class_type, method_name):
cm = re.match(self._class_matcher, str(class_type.unqualified().tag))
mm = re.match(self._method_matcher, method_name)
if cm and mm:
return SimpleXMethodMatcher.SimpleXMethodWorker(
self._method_function, self._arg_types)
# A helper function for register_xmethod_matcher which returns an error
# object if MATCHER is not having the requisite attributes in the proper
# format.
def _validate_xmethod_matcher(matcher):
if not hasattr(matcher, "match"):
return TypeError("Xmethod matcher is missing method: match")
if not hasattr(matcher, "name"):
return TypeError("Xmethod matcher is missing attribute: name")
if not hasattr(matcher, "enabled"):
return TypeError("Xmethod matcher is missing attribute: enabled")
if not isinstance(matcher.name, basestring):
return TypeError("Attribute 'name' of xmethod matcher is not a "
"string")
if matcher.name.find(";") >= 0:
return ValueError("Xmethod matcher name cannot contain ';' in it")
# A helper function for register_xmethod_matcher which looks up an
# xmethod matcher with NAME in LOCUS. Returns the index of the xmethod
# matcher in 'xmethods' sequence attribute of the LOCUS. If NAME is not
# found in LOCUS, then -1 is returned.
def _lookup_xmethod_matcher(locus, name):
for i in range(0, len(locus.xmethods)):
if locus.xmethods[i].name == name:
return i
return -1
def register_xmethod_matcher(locus, matcher, replace=False):
"""Registers a xmethod matcher MATCHER with a LOCUS.
Arguments:
locus: The locus in which the xmethods should be registered.
It can be 'None' to indicate that the xmethods should be
registered globally. Or, it could be a gdb.Objfile or a
gdb.Progspace object in which the xmethods should be
registered.
matcher: The xmethod matcher to register with the LOCUS. It
should be an instance of 'XMethodMatcher' class.
replace: If True, replace any existing xmethod matcher with the
same name in the locus. Otherwise, if a matcher with the same name
exists in the locus, raise an exception.
"""
err = _validate_xmethod_matcher(matcher)
if err:
raise err
if not locus:
locus = gdb
if locus == gdb:
locus_name = "global"
else:
locus_name = locus.filename
index = _lookup_xmethod_matcher(locus, matcher.name)
if index >= 0:
if replace:
del locus.xmethods[index]
else:
raise RuntimeError("Xmethod matcher already registered with "
"%s: %s" % (locus_name, matcher.name))
if gdb.parameter("verbose"):
gdb.write("Registering xmethod matcher '%s' with %s' ...\n")
locus.xmethods.insert(0, matcher)
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PK ! · Ÿ¢c c + auto-load/usr/lib64/libisl.so.15.1.1-gdb.pynu „[µü¤ import gdb
import re
# GDB Pretty Printers for most isl objects
class IslObjectPrinter:
"""Print an isl object"""
def __init__ (self, val, type):
self.val = val
self.type = type
def to_string (self):
# Cast val to a void pointer to stop gdb using this pretty
# printer for the pointer which would lead to an infinite loop.
void_ptr = gdb.lookup_type('void').pointer()
value = str(self.val.cast(void_ptr))
printer = gdb.parse_and_eval("isl_printer_to_str(isl_"
+ str(self.type)
+ "_get_ctx(" + value + "))")
printer = gdb.parse_and_eval("isl_printer_print_"
+ str(self.type) + "("
+ str(printer) + ", "
+ value + ")")
string = gdb.parse_and_eval("(char*)isl_printer_get_str("
+ str(printer) + ")")
gdb.parse_and_eval("isl_printer_free(" + str(printer) + ")")
return string
def display_hint (self):
return 'string'
class IslIntPrinter:
"""Print an isl_int """
def __init__ (self, val):
self.val = val
def to_string (self):
# Cast val to a void pointer to stop gdb using this pretty
# printer for the pointer which would lead to an infinite loop.
void_ptr = gdb.lookup_type('void').pointer()
value = str(self.val.cast(void_ptr))
context = gdb.parse_and_eval("isl_ctx_alloc()")
printer = gdb.parse_and_eval("isl_printer_to_str("
+ str(context) + ")")
printer = gdb.parse_and_eval("isl_printer_print_isl_int("
+ str(printer) + ", "
+ value + ")")
string = gdb.parse_and_eval("(char*)isl_printer_get_str("
+ str(printer) + ")")
gdb.parse_and_eval("isl_printer_free(" + str(printer) + ")")
gdb.parse_and_eval("isl_ctx_free(" + str(context) + ")")
return string
def display_hint (self):
return 'string'
class IslPrintCommand (gdb.Command):
"""Print an isl value."""
def __init__ (self):
super (IslPrintCommand, self).__init__ ("islprint",
gdb.COMMAND_OBSCURE)
def invoke (self, arg, from_tty):
arg = gdb.parse_and_eval(arg);
printer = str_lookup_function(arg)
if printer == None:
print "No isl printer for this type"
return
print printer.to_string()
IslPrintCommand()
def str_lookup_function (val):
if val.type.code != gdb.TYPE_CODE_PTR:
if str(val.type) == "isl_int":
return IslIntPrinter(val)
else:
return None
lookup_tag = val.type.target()
regex = re.compile ("^isl_(.*)$")
if lookup_tag == None:
return None
m = regex.match (str(lookup_tag))
if m:
# Those types of printers defined in isl.
if m.group(1) in ["basic_set", "set", "union_set", "basic_map",
"map", "union_map", "qpolynomial",
"pw_qpolynomial", "pw_qpolynomial_fold",
"union_pw_qpolynomial",
"union_pw_qpolynomial_fold"]:
return IslObjectPrinter(val, m.group(1))
return None
# Do not register the pretty printer.
# gdb.current_objfile().pretty_printers.append(str_lookup_function)
PK ! · Ÿ¢c c + auto-load/usr/lib64/libisl.so.13.1.0-gdb.pynu „[µü¤ import gdb
import re
# GDB Pretty Printers for most isl objects
class IslObjectPrinter:
"""Print an isl object"""
def __init__ (self, val, type):
self.val = val
self.type = type
def to_string (self):
# Cast val to a void pointer to stop gdb using this pretty
# printer for the pointer which would lead to an infinite loop.
void_ptr = gdb.lookup_type('void').pointer()
value = str(self.val.cast(void_ptr))
printer = gdb.parse_and_eval("isl_printer_to_str(isl_"
+ str(self.type)
+ "_get_ctx(" + value + "))")
printer = gdb.parse_and_eval("isl_printer_print_"
+ str(self.type) + "("
+ str(printer) + ", "
+ value + ")")
string = gdb.parse_and_eval("(char*)isl_printer_get_str("
+ str(printer) + ")")
gdb.parse_and_eval("isl_printer_free(" + str(printer) + ")")
return string
def display_hint (self):
return 'string'
class IslIntPrinter:
"""Print an isl_int """
def __init__ (self, val):
self.val = val
def to_string (self):
# Cast val to a void pointer to stop gdb using this pretty
# printer for the pointer which would lead to an infinite loop.
void_ptr = gdb.lookup_type('void').pointer()
value = str(self.val.cast(void_ptr))
context = gdb.parse_and_eval("isl_ctx_alloc()")
printer = gdb.parse_and_eval("isl_printer_to_str("
+ str(context) + ")")
printer = gdb.parse_and_eval("isl_printer_print_isl_int("
+ str(printer) + ", "
+ value + ")")
string = gdb.parse_and_eval("(char*)isl_printer_get_str("
+ str(printer) + ")")
gdb.parse_and_eval("isl_printer_free(" + str(printer) + ")")
gdb.parse_and_eval("isl_ctx_free(" + str(context) + ")")
return string
def display_hint (self):
return 'string'
class IslPrintCommand (gdb.Command):
"""Print an isl value."""
def __init__ (self):
super (IslPrintCommand, self).__init__ ("islprint",
gdb.COMMAND_OBSCURE)
def invoke (self, arg, from_tty):
arg = gdb.parse_and_eval(arg);
printer = str_lookup_function(arg)
if printer == None:
print "No isl printer for this type"
return
print printer.to_string()
IslPrintCommand()
def str_lookup_function (val):
if val.type.code != gdb.TYPE_CODE_PTR:
if str(val.type) == "isl_int":
return IslIntPrinter(val)
else:
return None
lookup_tag = val.type.target()
regex = re.compile ("^isl_(.*)$")
if lookup_tag == None:
return None
m = regex.match (str(lookup_tag))
if m:
# Those types of printers defined in isl.
if m.group(1) in ["basic_set", "set", "union_set", "basic_map",
"map", "union_map", "qpolynomial",
"pw_qpolynomial", "pw_qpolynomial_fold",
"union_pw_qpolynomial",
"union_pw_qpolynomial_fold"]:
return IslObjectPrinter(val, m.group(1))
return None
# Do not register the pretty printer.
# gdb.current_objfile().pretty_printers.append(str_lookup_function)
PK ! I<
aM M . auto-load/usr/lib64/libstdc++.so.6.0.25-gdb.pynu „[µü¤ # -*- python -*-
# Copyright (C) 2009-2018 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 .
import sys
import gdb
import os
import os.path
pythondir = '/usr/share/gcc-8/python'
libdir = '/usr/lib/../lib64'
# This file might be loaded when there is no current objfile. This
# can happen if the user loads it manually. In this case we don't
# update sys.path; instead we just hope the user managed to do that
# beforehand.
if gdb.current_objfile () is not None:
# Update module path. We want to find the relative path from libdir
# to pythondir, and then we want to apply that relative path to the
# directory holding the objfile with which this file is associated.
# This preserves relocatability of the gcc tree.
# Do a simple normalization that removes duplicate separators.
pythondir = os.path.normpath (pythondir)
libdir = os.path.normpath (libdir)
prefix = os.path.commonprefix ([libdir, pythondir])
# In some bizarre configuration we might have found a match in the
# middle of a directory name.
if prefix[-1] != '/':
prefix = os.path.dirname (prefix) + '/'
# Strip off the prefix.
pythondir = pythondir[len (prefix):]
libdir = libdir[len (prefix):]
# Compute the ".."s needed to get from libdir to the prefix.
dotdots = ('..' + os.sep) * len (libdir.split (os.sep))
objfile = gdb.current_objfile ().filename
dir_ = os.path.join (os.path.dirname (objfile), dotdots, pythondir)
if not dir_ in sys.path:
sys.path.insert(0, dir_)
# Call a function as a plain import would not execute body of the included file
# on repeated reloads of this object file.
from libstdcxx.v6 import register_libstdcxx_printers
register_libstdcxx_printers(gdb.current_objfile())
PK ! auto-load/usr/libnu ȯÝí PK ! auto-load/usr/binnu ȯÝí PK ! auto-load/usr/lib64nu ȯÝí PK ! auto-load/usr/sbinnu ȯÝí PK ! /ÞL‰ ‰ guile/gdb/experimental.gonu „[µü¤ GOOF----LE-8-2.0q ] ( 4 h› ] g guile¤ ¤ g define-module*¤ ¤ ¤ g gdb¤ g experimental¤ ¤ g filenameS¤
f gdb/experimental.scm¤ g importsS¤ ¤
¤
¤ g set-current-module¤ ¤ ¤ g %with-gdb-output-to-port¤ ¤ ¤ g with-gdb-output-to-port¤ g call-with-deferred-observers¤ ¤ ¤ g module-export!¤ ¤ ¤ g current-module¤ ¤ ¤ ¤ g %with-gdb-error-to-port¤ ! ¤ " ¤ #g with-gdb-error-to-port¤ $# ¤ %g call-with-output-string¤ &g