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/python.c | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 78 insertions(+), 4 deletions(-) (limited to 'gdb/python/python.c') diff --git a/gdb/python/python.c b/gdb/python/python.c index 43677d5..21895a8 100644 --- a/gdb/python/python.c +++ b/gdb/python/python.c @@ -70,9 +70,14 @@ static const char *gdbpy_should_print_stack = python_excp_message; #include "gdbthread.h" #include "observer.h" #include "interps.h" +#include "event-top.h" static PyMethodDef GdbMethods[]; +#ifdef IS_PY3K +static struct PyModuleDef GdbModuleDef; +#endif + PyObject *gdb_module; PyObject *gdb_python_module; @@ -198,8 +203,10 @@ eval_python_command (const char *command) return -1; Py_DECREF (v); +#ifndef IS_PY3K if (Py_FlushLine ()) PyErr_Clear (); +#endif return 0; } @@ -1431,6 +1438,13 @@ _initialize_python (void) { char *cmd_name; struct cmd_list_element *cmd; + char *progname; +#ifdef IS_PY3K + int i; + size_t progsize, count; + char *oldloc; + wchar_t *progname_copy; +#endif add_com ("python-interactive", class_obscure, python_interactive_command, @@ -1510,14 +1524,50 @@ message == an error message without a stack will be printed."), /foo/bin/python /foo/lib/pythonX.Y/... This must be done before calling Py_Initialize. */ - Py_SetProgramName (concat (ldirname (python_libdir), SLASH_STRING, "bin", - SLASH_STRING, "python", NULL)); + progname = concat (ldirname (python_libdir), SLASH_STRING, "bin", + SLASH_STRING, "python", NULL); +#ifdef IS_PY3K + oldloc = setlocale (LC_ALL, NULL); + setlocale (LC_ALL, ""); + progsize = strlen (progname); + if (progsize == (size_t) -1) + { + fprintf (stderr, "Could not convert python path to string\n"); + return; + } + progname_copy = PyMem_Malloc ((progsize + 1) * sizeof (wchar_t)); + if (!progname_copy) + { + fprintf (stderr, "out of memory\n"); + return; + } + count = mbstowcs (progname_copy, progname, progsize + 1); + if (count == (size_t) -1) + { + fprintf (stderr, "Could not convert python path to string\n"); + return; + } + setlocale (LC_ALL, oldloc); + + /* Note that Py_SetProgramName expects the string it is passed to + remain alive for the duration of the program's execution, so + it is not freed after this call. */ + Py_SetProgramName (progname_copy); +#else + Py_SetProgramName (progname); +#endif #endif Py_Initialize (); PyEval_InitThreads (); +#ifdef IS_PY3K + gdb_module = PyModule_Create (&GdbModuleDef); + /* Add _gdb module to the list of known built-in modules. */ + _PyImport_FixupBuiltin (gdb_module, "_gdb"); +#else gdb_module = Py_InitModule ("_gdb", GdbMethods); +#endif /* The casts to (char*) are for python 2.4. */ PyModule_AddStringConstant (gdb_module, "VERSION", (char*) version); @@ -1612,7 +1662,17 @@ finish_python_initialization (void) sys_path = PySys_GetObject ("path"); - if (sys_path && PyList_Check (sys_path)) + /* If sys.path is not defined yet, define it first. */ + if (!(sys_path && PyList_Check (sys_path))) + { +#ifdef IS_PY3K + PySys_SetPath (L""); +#else + PySys_SetPath (""); +#endif + sys_path = PySys_GetObject ("path"); + } + if (sys_path && PyList_Check (sys_path)) { PyObject *pythondir; int err; @@ -1628,7 +1688,7 @@ finish_python_initialization (void) Py_DECREF (pythondir); } else - PySys_SetPath (gdb_pythondir); + goto fail; /* Import the gdb module to finish the initialization, and add it to __main__ for convenience. */ @@ -1768,4 +1828,18 @@ Return a tuple containing all inferiors." }, {NULL, NULL, 0, NULL} }; +#ifdef IS_PY3K +static struct PyModuleDef GdbModuleDef = +{ + PyModuleDef_HEAD_INIT, + "_gdb", + NULL, + -1, + GdbMethods, + NULL, + NULL, + NULL, + NULL +}; +#endif #endif /* HAVE_PYTHON */ -- cgit v1.1