From 9a27f2c60d760a95a27e336750f26f69f91dd156 Mon Sep 17 00:00:00 2001 From: Paul Koning Date: Wed, 12 Dec 2012 16:47:30 +0000 Subject: Add support for Python 3. * NEWS: Mention Python 3 support. * varobj.c (value_get_print_value): Use python_string_to_target_string. * python/py-block.c: Use PyVarObject_HEAD_INIT in initialization of type objects. * python/py-breakpoint.c: Ditto. * python/py-cmd.c: Ditto. * python/py-event.c: Ditto. * python/py-event.h: Ditto. * python/py-evtregistry.c: Ditto. * python/py-finishbreakpoint.c: Ditto. * python/py-frame.c: Ditto. * python/py-function.c: Ditto. * python/py-infthread.c: Ditto. * python/py-lazy-string.c: Ditto. * python/py-progspace.c: Ditto. * /python/py-symbol.c: Ditto. * python/py-evts.c: (gdbpy_initialize_py_events): Add module initialization for Python 3. * python/py-inferior.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (infpy_read_memory): Return memoryview object if Python 3. (infpy_write_memory): Use "s*" operand parsing code for Python 3. (infpy_search_memory): Ditto. (get_buffer): New function for Python 3. * python/py-objfile.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (objfpy_dealloc): Use Py_TYPE to call tp_free. * python/py-param.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (get_attr): Use PyUnicode_CompareWithASCIIString if Python 3. (set_attr): Ditto. * python/py-prettyprint.c (print_string_repr): use PyBytes methods instead of PyString methods if Python 3. (print_children): Skip push_dummy_python_frame call if Python 3. * python/py-symtab.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (salpy_dealloc): Use Py_TYPE to call tp_free. * python/py-type.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (field_dealloc): Use Py_TYPE to call tp_free. (typy_dealloc): Ditto. (type_object_as_number): Adjust struct initializations for differences in layout for Python 2 vs. Python 3. * python/py-utils.c (python_string_to_unicode): Omit non-Unicode string case for Python 3. (unicode_to_encoded_python_string): Shorten code (no functional change). (python_string_to_target_python_string): Comment that in Python 3 returned value is a Python "bytes" type. (gdbpy_is_string): Omit non-Unicode string check in Python 3. (gdb_py_object_from_longest): Omit non-long integer case in Python 3. (gdb_py_object_from_ulongest): Ditto. * python/py-value.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (valpy_dealloc): Use Py_TYPE to call tp_free. (valpy_int): Omit function if Python 3. (convert_value_from_python): Use "%S" format (Python object as a string) if Python 3. (value_object_as_number): Adjust struct initializations for differences in layout for Python 2 vs. Python 3. * python/python-config.py: Adjust syntax for Python 3 compatibility. Include "sys.abiflags" string as part of python library name, if that attribute exists (Python 3). * python/python-internal.h (IS_PY3): Define if Python 3. (Py_TPFLAGS_HAVE_ITER, Py_TPFLAGS_CHECKTYPES): Define with placeholder value if Python 3. (PyInt_Check, PyInt_FromLong, PyInt_AsLong, PyString_FromString, PyString_Decode, PyString_FromFormat, PyString_Check): Define as analogous Python 3 API function if Python 3. (PyVarObject_HEAD_INIT): Define if not already defined. (Py_TYPE): Ditto. * python/python.c (eval_python_command): Omit Py_FlushLine call if Python 3. Check return values of all Python API calls for error. Supply dummy "python" and "python-interactive" commands if Python initialization failed. (_initialize_python): Convert argc to wchar_t** if Python 3. Add module initialization for Python 3. (finish_python_initialization): Pass wchar_t * argument to PySys_SetPath if Python 3. * python/lib/gdb/__init__.py: Define "reload" if Python 3. (_GdbFile): New class for common output file behavior. (GdbOutFile): Subclass from _GdbFile. (GdbOutputErrorFile): Ditto. (auto_load_packages): Adjust syntax for Python 3 compatibility. * python/lib/gdb/printing.py: Define basestr and int if Python 3. * python/lib/gdb/prompt.py: Use sorted() function rather than sort() method. * python/lib/gdb/command/explore.py: Define raw_input if Python 3. Adjust syntax for Python 3 compatibility. * python/lib/gdb/command/pretty_printers.py: Use sorted() function rather than sort() method. Adjust syntax for Python 3 compatibility. * python/lib/gdb/command/type_printers.py: Ditto. * doc/gdb.texinfo (Inferior.read_memory): Mention that the return value is a memoryview object if Python 3. --- gdb/python/py-utils.c | 42 ++++++++++++++++++++++++++++++++---------- 1 file changed, 32 insertions(+), 10 deletions(-) (limited to 'gdb/python/py-utils.c') diff --git a/gdb/python/py-utils.c b/gdb/python/py-utils.c index d5d0e43..4a118c7 100644 --- a/gdb/python/py-utils.c +++ b/gdb/python/py-utils.c @@ -54,7 +54,8 @@ make_cleanup_py_decref (PyObject *py) As an added bonus, the functions accepts a unicode string and returns it right away, so callers don't need to check which kind of string they've - got. + got. In Python 3, all strings are Unicode so this case is always the + one that applies. If the given object is not one of the mentioned string types, NULL is returned, with the TypeError python exception set. */ @@ -70,9 +71,10 @@ python_string_to_unicode (PyObject *obj) unicode_str = obj; Py_INCREF (obj); } - +#ifndef IS_PY3K else if (PyString_Check (obj)) unicode_str = PyUnicode_FromEncodedObject (obj, host_charset (), NULL); +#endif else { PyErr_SetString (PyExc_TypeError, @@ -99,7 +101,11 @@ unicode_to_encoded_string (PyObject *unicode_str, const char *charset) if (string == NULL) return NULL; +#ifdef IS_PY3K + result = xstrdup (PyBytes_AsString (string)); +#else result = xstrdup (PyString_AsString (string)); +#endif Py_DECREF (string); @@ -113,14 +119,8 @@ unicode_to_encoded_string (PyObject *unicode_str, const char *charset) static PyObject * unicode_to_encoded_python_string (PyObject *unicode_str, const char *charset) { - PyObject *string; - /* Translate string to named charset. */ - string = PyUnicode_AsEncodedString (unicode_str, charset, NULL); - if (string == NULL) - return NULL; - - return string; + return PyUnicode_AsEncodedString (unicode_str, charset, NULL); } /* Returns a newly allocated string with the contents of the given unicode @@ -167,7 +167,9 @@ python_string_to_target_string (PyObject *obj) /* Converts a python string (8-bit or unicode) to a target string in the target's charset. Returns NULL on error, with a python exception - set. */ + set. + + In Python 3, the returned object is a "bytes" object (not a string). */ PyObject * python_string_to_target_python_string (PyObject *obj) { @@ -221,7 +223,11 @@ target_string_to_unicode (const gdb_byte *str, int length) int gdbpy_is_string (PyObject *obj) { +#ifdef IS_PY3K + return PyUnicode_Check (obj); +#else return PyString_Check (obj) || PyUnicode_Check (obj); +#endif } /* Return the string representation of OBJ, i.e., str (obj). @@ -235,7 +241,11 @@ gdbpy_obj_to_string (PyObject *obj) if (str_obj != NULL) { +#ifdef IS_PY3K + char *msg = python_string_to_host_string (str_obj); +#else char *msg = xstrdup (PyString_AsString (str_obj)); +#endif Py_DECREF (str_obj); return msg; @@ -335,6 +345,11 @@ get_addr_from_python (PyObject *obj, CORE_ADDR *addr) PyObject * gdb_py_object_from_longest (LONGEST l) { +#ifdef IS_PY3K + if (sizeof (l) > sizeof (long)) + return PyLong_FromLongLong (l); + return PyLong_FromLong (l); +#else #ifdef HAVE_LONG_LONG /* Defined by Python. */ /* If we have 'long long', and the value overflows a 'long', use a Python Long; otherwise use a Python Int. */ @@ -343,6 +358,7 @@ gdb_py_object_from_longest (LONGEST l) return PyLong_FromLongLong (l); #endif return PyInt_FromLong (l); +#endif } /* Convert a ULONGEST to the appropriate Python object -- either an @@ -351,6 +367,11 @@ gdb_py_object_from_longest (LONGEST l) PyObject * gdb_py_object_from_ulongest (ULONGEST l) { +#ifdef IS_PY3K + if (sizeof (l) > sizeof (unsigned long)) + return PyLong_FromUnsignedLongLong (l); + return PyLong_FromUnsignedLong (l); +#else #ifdef HAVE_LONG_LONG /* Defined by Python. */ /* If we have 'long long', and the value overflows a 'long', use a Python Long; otherwise use a Python Int. */ @@ -362,6 +383,7 @@ gdb_py_object_from_ulongest (ULONGEST l) return PyLong_FromUnsignedLong (l); return PyInt_FromLong (l); +#endif } /* Like PyInt_AsLong, but returns 0 on failure, 1 on success, and puts -- cgit v1.1