old-cross-binutils/gdb/python/python-utils.c
Thiago Jung Bauermann d57a3c85f6 Initial python support.
gdb/
2008-08-06  Vladimir Prus  <vladimir@codesourcery.com>
	    Tom Tromey  <tromey@redhat.com>
	    Thiago Jung Bauermann  <bauerman@br.ibm.com>
	    Doug Evans  <dje@google.com>

	* Makefile.in (SUBDIR_PYTHON_OBS, SUBDIR_PYTHON_SRCS,
	SUBDIR_PYTHON_DEPS, SUBDIR_PYTHON_LDFLAGS, SUBDIR_PYTHON_CFLAGS,
	PYTHON_CFLAGS): New.
	(python_h, python_internal_h): New.
	(cli-script.o): Depend on python.h
	(python.o, python-utils.o): New.
	* cli/cli-script.c (print_command_lines): Handle python_control.
	(execute_control_command): Handle python_control.
	(execute_control_command_untraced): New function.
	(while_command): Call execute_control_command_untraced.
	(if_command): Likewise.
	(get_command_line): Remove static attribute.
	(read_next_line): Handle "python".
	(recurse_read_control_structure): Handle python_control.
	(read_command_lines): Handle python_control.
	Include python.h.
	* cli/cli-script.h (get_command_line): Add prototype.
	(execute_control_command_untraced): Likewise.
	* configure.ac: Add --with-python.
	* defs.h (enum command_control_type) <python_control>: New
	constant.
	* python/python-internal.h: New file.
	* python/python.c: New file.
	* python/python.h: New file.
	* python/python-utils.c: New file.
	* NEWS: Mention Python scripting support and its new commands.

gdb/doc/
2008-08-06  Tom Tromey  <tromey@redhat.com>

	* gdb.texinfo (Extending GDB): New chapter.
	(Sequences): Demoted chapter, now a section under the new
	Extending GDB chapter.
	(Python): New section.

gdb/testsuite/
2008-08-06  Tom Tromey  <tromey@redhat.com>

	* gdb.python/python.exp: New file.
2008-08-06 19:41:33 +00:00

117 lines
3.3 KiB
C

/* General utility routines for GDB/Python.
Copyright (C) 2008 Free Software Foundation, Inc.
This file is part of GDB.
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 <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "charset.h"
#include "python-internal.h"
/* This is a cleanup function which decrements the refcount on a
Python object. */
static void
py_decref (void *p)
{
PyObject *py = p;
/* Note that we need the extra braces in this 'if' to avoid a
warning from gcc. */
if (py)
{
Py_DECREF (py);
}
}
/* Return a new cleanup which will decrement the Python object's
refcount when run. */
struct cleanup *
make_cleanup_py_decref (PyObject *py)
{
return make_cleanup (py_decref, (void *) py);
}
/* Converts a Python 8-bit string to a unicode string object. Assumes the
8-bit string is in the host charset. If an error occurs during conversion,
returns NULL with a python exception set.
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.
If the given object is not one of the mentioned string types, NULL is
returned, with the TypeError python exception set. */
PyObject *
python_string_to_unicode (PyObject *obj)
{
PyObject *unicode_str;
/* If obj is already a unicode string, just return it.
I wish life was always that simple... */
if (PyUnicode_Check (obj))
unicode_str = obj;
else if (PyString_Check (obj))
unicode_str = PyUnicode_FromEncodedObject (obj, host_charset (), NULL);
else
{
PyErr_SetString (PyExc_TypeError,
_("Expected a string or unicode object."));
unicode_str = NULL;
}
return unicode_str;
}
/* Returns a newly allocated string with the contents of the given unicode
string object converted to the target's charset. If an error occurs during
the conversion, NULL will be returned and a python exception will be set.
The caller is responsible for xfree'ing the string. */
char *
unicode_to_target_string (PyObject *unicode_str)
{
char *target_string;
PyObject *string;
/* Translate string to target's charset. */
string = PyUnicode_AsEncodedString (unicode_str, target_charset (), NULL);
if (string == NULL)
return NULL;
target_string = xstrdup (PyString_AsString (string));
Py_DECREF (string);
return target_string;
}
/* 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.
The caller is responsible for xfree'ing the string. */
char *
python_string_to_target_string (PyObject *obj)
{
PyObject *str;
str = python_string_to_unicode (obj);
if (str == NULL)
return NULL;
return unicode_to_target_string (str);
}