gdb/python/python-internal.h

   1 /* Gdb/Python header for private use by Python module.
   2
   3    Copyright (C) 2008, 2009 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef GDB_PYTHON_INTERNAL_H
  21 #define GDB_PYTHON_INTERNAL_H
  22
  23 /* Python 2.4 doesn't include stdint.h soon enough to get {u,}intptr_t
  24    needed by pyport.h.  */
  25 #include <stdint.h>
  26
  27 /* /usr/include/features.h on linux systems will define _POSIX_C_SOURCE
  28    if it sees _GNU_SOURCE (which config.h will define).
  29    pyconfig.h defines _POSIX_C_SOURCE to a different value than
  30    /usr/include/features.h does causing compilation to fail.
  31    To work around this, undef _POSIX_C_SOURCE before we include Python.h.  */
  32 #undef _POSIX_C_SOURCE
  33
  34 #if HAVE_LIBPYTHON2_4
  35 #include "python2.4/Python.h"
  36 /* Py_ssize_t is not defined until 2.5.
  37    Logical type for Py_ssize_t is Py_intptr_t, but that fails in 64-bit
  38    compilation due to several apparent mistakes in python2.4 API, so we
  39    use 'int' instead.  */
  40 typedef int Py_ssize_t;
  41 #elif HAVE_LIBPYTHON2_5
  42 #include "python2.5/Python.h"
  43 #elif HAVE_LIBPYTHON2_6
  44 #include "python2.6/Python.h"
  45 #else
  46 #error "Unable to find usable Python.h"
  47 #endif
  48
  49 /* If Python.h does not define WITH_THREAD, then the various
  50    GIL-related functions will not be defined.  However,
  51    PyGILState_STATE will be.  */
  52 #ifndef WITH_THREAD
  53 #define PyGILState_Ensure() ((PyGILState_STATE) 0)
  54 #define PyGILState_Release(ARG) (ARG)
  55 #define PyEval_InitThreads() 0
  56 #define PyThreadState_Swap(ARG) (ARG)
  57 #define PyEval_InitThreads() 0
  58 #define PyEval_ReleaseLock() 0
  59 #endif
  60
  61 struct value;
  62
  63 extern PyObject *gdb_module;
  64 extern PyTypeObject value_object_type;
  65
  66 PyObject *gdbpy_history (PyObject *self, PyObject *args);
  67
  68 PyObject *value_to_value_object (struct value *v);
  69
  70 struct value *convert_value_from_python (PyObject *obj);
  71
  72 void gdbpy_initialize_values (void);
  73
  74 struct cleanup *make_cleanup_py_decref (PyObject *py);
  75 struct cleanup *make_cleanup_py_restore_gil (PyGILState_STATE *state);
  76
  77 /* Use this after a TRY_EXCEPT to throw the appropriate Python
  78    exception.  */
  79 #define GDB_PY_HANDLE_EXCEPTION(Exception)                              \
  80     do {                                                                \
  81       if (Exception.reason < 0)                                         \
  82         return PyErr_Format (Exception.reason == RETURN_QUIT            \
  83                              ? PyExc_KeyboardInterrupt : PyExc_RuntimeError, \
  84                              "%s", Exception.message);                  \
  85     } while (0)
  86
  87
  88 void gdbpy_print_stack (void);
  89
  90 PyObject *python_string_to_unicode (PyObject *obj);
  91 char *unicode_to_target_string (PyObject *unicode_str);
  92 char *python_string_to_target_string (PyObject *obj);
  93 char *python_string_to_host_string (PyObject *obj);
  94 PyObject *target_string_to_unicode (const gdb_byte *str, int length);
  95 int gdbpy_is_string (PyObject *obj);
  96
  97 #endif /* GDB_PYTHON_INTERNAL_H */