1 # Copyright (C) 2010-2016 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
21 if sys.version_info[0] > 2:
22 # Python 3 moved "reload"
23 from imp import reload
27 class _GdbFile (object):
28 # These two are needed in Python 3
39 def writelines(self, iterable):
46 class GdbOutputFile (_GdbFile):
48 write(s, stream=STDOUT)
50 sys.stdout = GdbOutputFile()
52 class GdbOutputErrorFile (_GdbFile):
54 write(s, stream=STDERR)
56 sys.stderr = GdbOutputErrorFile()
58 # Default prompt hook does nothing.
61 # Ensure that sys.argv is set to something.
62 # We do not use PySys_SetArgvEx because it did not appear until 2.6.6.
65 # Initial pretty printers.
68 # Initial type printers.
70 # Initial xmethod matchers.
72 # Initial frame filters.
74 # Initial frame unwinders.
77 def execute_unwinders(pending_frame):
78 """Internal function called from GDB to execute all unwinders.
80 Runs each currently enabled unwinder until it finds the one that
81 can unwind given frame.
84 pending_frame: gdb.PendingFrame instance.
86 gdb.UnwindInfo instance or None.
88 for objfile in _gdb.objfiles():
89 for unwinder in objfile.frame_unwinders:
91 unwind_info = unwinder(pending_frame)
92 if unwind_info is not None:
95 current_progspace = _gdb.current_progspace()
96 for unwinder in current_progspace.frame_unwinders:
98 unwind_info = unwinder(pending_frame)
99 if unwind_info is not None:
102 for unwinder in frame_unwinders:
104 unwind_info = unwinder(pending_frame)
105 if unwind_info is not None:
111 # Convenience variable to GDB's python directory
112 PYTHONDIR = os.path.dirname(os.path.dirname(__file__))
114 # Auto-load all functions/commands.
116 # Packages to auto-load.
124 # pkgutil.iter_modules is not available prior to Python 2.6. Instead,
125 # manually iterate the list, collating the Python files in each module
126 # path. Construct the module name, and import.
128 def auto_load_packages():
129 for package in packages:
130 location = os.path.join(os.path.dirname(__file__), package)
131 if os.path.exists(location):
132 py_files = filter(lambda x: x.endswith('.py')
133 and x != '__init__.py',
134 os.listdir(location))
136 for py_file in py_files:
137 # Construct from foo.py, gdb.module.foo
138 modname = "%s.%s.%s" % ( __name__, package, py_file[:-3] )
140 if modname in sys.modules:
141 # reload modules with duplicate names
142 reload(__import__(modname))
146 sys.stderr.write (traceback.format_exc() + "\n")
150 def GdbSetPythonDirectory(dir):
151 """Update sys.path, reload gdb and auto-load packages."""
155 sys.path.remove(PYTHONDIR)
158 sys.path.insert(0, dir)
162 # note that reload overwrites the gdb module without deleting existing
164 reload(__import__(__name__))