diff options
Diffstat (limited to 'Tools')
| -rw-r--r-- | Tools/gdb/libpython.py | 121 |
1 files changed, 69 insertions, 52 deletions
diff --git a/Tools/gdb/libpython.py b/Tools/gdb/libpython.py index a85f505..aa57fed 100644 --- a/Tools/gdb/libpython.py +++ b/Tools/gdb/libpython.py @@ -40,11 +40,21 @@ the type names are known to the debugger The module also extends gdb with some python-specific commands. ''' -from __future__ import with_statement + +# NOTE: some gdbs are linked with Python 3, so this file should be dual-syntax +# compatible (2.6+ and 3.0+). See #19308. + +from __future__ import print_function, with_statement import gdb +import os import locale import sys +if sys.version_info[0] >= 3: + unichr = chr + xrange = range + long = int + # Look up the gdb.Type for some standard types: _type_char_ptr = gdb.lookup_type('char').pointer() # char* _type_unsigned_char_ptr = gdb.lookup_type('unsigned char').pointer() # unsigned char* @@ -58,16 +68,16 @@ _is_pep393 = None SIZEOF_VOID_P = _type_void_ptr.sizeof -Py_TPFLAGS_HEAPTYPE = (1L << 9) +Py_TPFLAGS_HEAPTYPE = (1 << 9) -Py_TPFLAGS_LONG_SUBCLASS = (1L << 24) -Py_TPFLAGS_LIST_SUBCLASS = (1L << 25) -Py_TPFLAGS_TUPLE_SUBCLASS = (1L << 26) -Py_TPFLAGS_BYTES_SUBCLASS = (1L << 27) -Py_TPFLAGS_UNICODE_SUBCLASS = (1L << 28) -Py_TPFLAGS_DICT_SUBCLASS = (1L << 29) -Py_TPFLAGS_BASE_EXC_SUBCLASS = (1L << 30) -Py_TPFLAGS_TYPE_SUBCLASS = (1L << 31) +Py_TPFLAGS_LONG_SUBCLASS = (1 << 24) +Py_TPFLAGS_LIST_SUBCLASS = (1 << 25) +Py_TPFLAGS_TUPLE_SUBCLASS = (1 << 26) +Py_TPFLAGS_BYTES_SUBCLASS = (1 << 27) +Py_TPFLAGS_UNICODE_SUBCLASS = (1 << 28) +Py_TPFLAGS_DICT_SUBCLASS = (1 << 29) +Py_TPFLAGS_BASE_EXC_SUBCLASS = (1 << 30) +Py_TPFLAGS_TYPE_SUBCLASS = (1 << 31) MAX_OUTPUT_LEN=1024 @@ -90,32 +100,39 @@ def safety_limit(val): def safe_range(val): # As per range, but don't trust the value too much: cap it to a safety # threshold in case the data was corrupted - return xrange(safety_limit(val)) - -def write_unicode(file, text): - # Write a byte or unicode string to file. Unicode strings are encoded to - # ENCODING encoding with 'backslashreplace' error handler to avoid - # UnicodeEncodeError. - if isinstance(text, unicode): - text = text.encode(ENCODING, 'backslashreplace') - file.write(text) - -def os_fsencode(filename): - if not isinstance(filename, unicode): - return filename - encoding = sys.getfilesystemencoding() - if encoding == 'mbcs': - # mbcs doesn't support surrogateescape - return filename.encode(encoding) - encoded = [] - for char in filename: - # surrogateescape error handler - if 0xDC80 <= ord(char) <= 0xDCFF: - byte = chr(ord(char) - 0xDC00) - else: - byte = char.encode(encoding) - encoded.append(byte) - return ''.join(encoded) + return xrange(safety_limit(int(val))) + +if sys.version_info[0] >= 3: + def write_unicode(file, text): + file.write(text) +else: + def write_unicode(file, text): + # Write a byte or unicode string to file. Unicode strings are encoded to + # ENCODING encoding with 'backslashreplace' error handler to avoid + # UnicodeEncodeError. + if isinstance(text, unicode): + text = text.encode(ENCODING, 'backslashreplace') + file.write(text) + +try: + os_fsencode = os.fsencode +except ImportError: + def os_fsencode(filename): + if not isinstance(filename, unicode): + return filename + encoding = sys.getfilesystemencoding() + if encoding == 'mbcs': + # mbcs doesn't support surrogateescape + return filename.encode(encoding) + encoded = [] + for char in filename: + # surrogateescape error handler + if 0xDC80 <= ord(char) <= 0xDCFF: + byte = chr(ord(char) - 0xDC00) + else: + byte = char.encode(encoding) + encoded.append(byte) + return ''.join(encoded) class StringTruncated(RuntimeError): pass @@ -322,8 +339,8 @@ class PyObjectPtr(object): # class return cls - #print 'tp_flags = 0x%08x' % tp_flags - #print 'tp_name = %r' % tp_name + #print('tp_flags = 0x%08x' % tp_flags) + #print('tp_name = %r' % tp_name) name_map = {'bool': PyBoolObjectPtr, 'classobj': PyClassObjectPtr, @@ -733,14 +750,14 @@ class PyLongObjectPtr(PyObjectPtr): ''' ob_size = long(self.field('ob_size')) if ob_size == 0: - return 0L + return 0 ob_digit = self.field('ob_digit') if gdb.lookup_type('digit').sizeof == 2: - SHIFT = 15L + SHIFT = 15 else: - SHIFT = 30L + SHIFT = 30 digits = [long(ob_digit[i]) * 2**(SHIFT*i) for i in safe_range(abs(ob_size))] @@ -1595,12 +1612,12 @@ class PyList(gdb.Command): # py-list requires an actual PyEval_EvalFrameEx frame: frame = Frame.get_selected_bytecode_frame() if not frame: - print 'Unable to locate gdb frame for python bytecode interpreter' + print('Unable to locate gdb frame for python bytecode interpreter') return pyop = frame.get_pyop() if not pyop or pyop.is_optimized_out(): - print 'Unable to read information on python frame' + print('Unable to read information on python frame') return filename = pyop.filename() @@ -1656,9 +1673,9 @@ def move_in_stack(move_up): frame = iter_frame if move_up: - print 'Unable to find an older python frame' + print('Unable to find an older python frame') else: - print 'Unable to find a newer python frame' + print('Unable to find a newer python frame') class PyUp(gdb.Command): 'Select and print the python stack frame that called this one (if any)' @@ -1740,23 +1757,23 @@ class PyPrint(gdb.Command): frame = Frame.get_selected_python_frame() if not frame: - print 'Unable to locate python frame' + print('Unable to locate python frame') return pyop_frame = frame.get_pyop() if not pyop_frame: - print 'Unable to read information on python frame' + print('Unable to read information on python frame') return pyop_var, scope = pyop_frame.get_var_by_name(name) if pyop_var: - print ('%s %r = %s' + print('%s %r = %s' % (scope, name, pyop_var.get_truncated_repr(MAX_OUTPUT_LEN))) else: - print '%r not found' % name + print('%r not found' % name) PyPrint() @@ -1774,16 +1791,16 @@ class PyLocals(gdb.Command): frame = Frame.get_selected_python_frame() if not frame: - print 'Unable to locate python frame' + print('Unable to locate python frame') return pyop_frame = frame.get_pyop() if not pyop_frame: - print 'Unable to read information on python frame' + print('Unable to read information on python frame') return for pyop_name, pyop_value in pyop_frame.iter_locals(): - print ('%s = %s' + print('%s = %s' % (pyop_name.proxyval(set()), pyop_value.get_truncated_repr(MAX_OUTPUT_LEN))) |