/* Gdb/Python header for private use by Python module.
- Copyright (C) 2008-2015 Free Software Foundation, Inc.
+ Copyright (C) 2008-2021 Free Software Foundation, Inc.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#ifndef GDB_PYTHON_INTERNAL_H
-#define GDB_PYTHON_INTERNAL_H
+#ifndef PYTHON_PYTHON_INTERNAL_H
+#define PYTHON_PYTHON_INTERNAL_H
#include "extension.h"
#include "extension-priv.h"
comes with the Python plugin for GCC. See:
https://gcc-python-plugin.readthedocs.org/en/latest/cpychecker.html
The checker defines a WITH_ macro for each attribute it
- exposes. */
-
-#ifdef WITH_CPYCHECKER_RETURNS_BORROWED_REF_ATTRIBUTE
-#define CPYCHECKER_RETURNS_BORROWED_REF \
- __attribute__ ((cpychecker_returns_borrowed_ref))
-#else
-#define CPYCHECKER_RETURNS_BORROWED_REF
-#endif
+ exposes. Note that we intentionally do not use
+ 'cpychecker_returns_borrowed_ref' -- that idiom is forbidden in
+ gdb. */
#ifdef WITH_CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF_ATTRIBUTE
#define CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF(ARG) \
#define CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF(ARG)
#endif
-#ifdef WITH_CPYCHECKER_STEALS_REFERENCE_TO_ARG_ATTRIBUTE
-#define CPYCHECKER_STEALS_REFERENCE_TO_ARG(n) \
- __attribute__ ((cpychecker_steals_reference_to_arg (n)))
-#else
-#define CPYCHECKER_STEALS_REFERENCE_TO_ARG(n)
-#endif
-
#ifdef WITH_CPYCHECKER_SETS_EXCEPTION_ATTRIBUTE
#define CPYCHECKER_SETS_EXCEPTION __attribute__ ((cpychecker_sets_exception))
#else
#define CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION
#endif
-/* Python 2.4 doesn't include stdint.h soon enough to get {u,}intptr_t
- needed by pyport.h. */
/* /usr/include/features.h on linux systems will define _POSIX_C_SOURCE
if it sees _GNU_SOURCE (which config.h will define).
pyconfig.h defines _POSIX_C_SOURCE to a different value than
#define HAVE_SNPRINTF 1
#endif
+/* Another kludge to avoid compilation errors because MinGW defines
+ 'hypot' to '_hypot', but the C++ headers says "using ::hypot". */
+#ifdef __MINGW32__
+# define _hypot hypot
+#endif
+
/* Request clean size types from Python. */
#define PY_SSIZE_T_CLEAN
from including our python/python.h header file. */
#include <Python.h>
#include <frameobject.h>
+#include "py-ref.h"
#if PY_MAJOR_VERSION >= 3
#define IS_PY3K 1
#define Py_TPFLAGS_CHECKTYPES 0
#define PyInt_Check PyLong_Check
-#define PyInt_FromLong PyLong_FromLong
#define PyInt_AsLong PyLong_AsLong
+#define PyInt_AsSsize_t PyLong_AsSsize_t
#define PyString_FromString PyUnicode_FromString
#define PyString_Decode PyUnicode_Decode
#define PyString_Check PyUnicode_Check
#endif
-#if HAVE_LIBPYTHON2_4
-/* Py_ssize_t is not defined until 2.5.
- Logical type for Py_ssize_t is Py_intptr_t, but that fails in 64-bit
- compilation due to several apparent mistakes in python2.4 API, so we
- use 'int' instead. */
-typedef int Py_ssize_t;
-#endif
-
-#ifndef PyVarObject_HEAD_INIT
-/* Python 2.4 does not define PyVarObject_HEAD_INIT. */
-#define PyVarObject_HEAD_INIT(type, size) \
- PyObject_HEAD_INIT(type) size,
-
-#endif
-
-#ifndef Py_TYPE
-/* Python 2.4 does not define Py_TYPE. */
-#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
-#endif
-
/* If Python.h does not define WITH_THREAD, then the various
GIL-related functions will not be defined. However,
PyGILState_STATE will be. */
#define GDB_PY_LLU_ARG "K"
typedef PY_LONG_LONG gdb_py_longest;
typedef unsigned PY_LONG_LONG gdb_py_ulongest;
-#define gdb_py_long_from_longest PyLong_FromLongLong
-#define gdb_py_long_from_ulongest PyLong_FromUnsignedLongLong
#define gdb_py_long_as_ulongest PyLong_AsUnsignedLongLong
#else /* HAVE_LONG_LONG */
#define GDB_PY_LLU_ARG "K"
typedef long gdb_py_longest;
typedef unsigned long gdb_py_ulongest;
-#define gdb_py_long_from_longest PyLong_FromLong
-#define gdb_py_long_from_ulongest PyLong_FromUnsignedLong
#define gdb_py_long_as_ulongest PyLong_AsUnsignedLong
#endif /* HAVE_LONG_LONG */
typedef long Py_hash_t;
#endif
+/* PyMem_RawMalloc appeared in Python 3.4. For earlier versions, we can just
+ fall back to PyMem_Malloc. */
+
+#if PY_VERSION_HEX < 0x03040000
+#define PyMem_RawMalloc PyMem_Malloc
+#endif
+
/* Python 2.6 did not wrap Py_DECREF in 'do {...} while (0)', leading
to 'suggest explicit braces to avoid ambiguous ‘else’' gcc errors.
Wrap it ourselves, so that callers don't need to care. */
static inline void
gdb_Py_DECREF (void *op) /* ARI: editCase function */
{
- /* ... and Python 2.4 didn't cast OP to PyObject pointer on the
- '(op)->ob_refcnt' references within the macro. Cast it ourselves
- too. */
- Py_DECREF ((PyObject *) op);
+ Py_DECREF (op);
}
#undef Py_DECREF
#define Py_DECREF(op) gdb_Py_DECREF (op)
-/* The second argument to PyObject_GetAttrString was missing the 'const'
- qualifier in Python-2.4. Hence, we wrap it in a function to avoid errors
- when compiled with -Werror. */
+/* PyObject_CallMethod's 'method' and 'format' parameters were missing
+ the 'const' qualifier before Python 3.4. Hence, we wrap the
+ function in our own version to avoid errors with string literals.
+ Note, this is a variadic template because PyObject_CallMethod is a
+ varargs function and Python doesn't have a "PyObject_VaCallMethod"
+ variant taking a va_list that we could defer to instead. */
+template<typename... Args>
static inline PyObject *
-gdb_PyObject_GetAttrString (PyObject *obj,
- const char *attr) /* ARI: editCase function */
+gdb_PyObject_CallMethod (PyObject *o, const char *method, const char *format,
+ Args... args) /* ARI: editCase function */
{
- return PyObject_GetAttrString (obj, (char *) attr);
+ return PyObject_CallMethod (o,
+ const_cast<char *> (method),
+ const_cast<char *> (format),
+ args...);
}
-#define PyObject_GetAttrString(obj, attr) gdb_PyObject_GetAttrString (obj, attr)
+#undef PyObject_CallMethod
+#define PyObject_CallMethod gdb_PyObject_CallMethod
-/* The second argument to PyObject_HasAttrString was also missing the 'const'
- qualifier in Python-2.4. Hence, we wrap it also in a function to avoid
- errors when compiled with -Werror. */
+/* The 'name' parameter of PyErr_NewException was missing the 'const'
+ qualifier in Python <= 3.4. Hence, we wrap it in a function to
+ avoid errors when compiled with -Werror. */
-static inline int
-gdb_PyObject_HasAttrString (PyObject *obj,
- const char *attr) /* ARI: editCase function */
+static inline PyObject*
+gdb_PyErr_NewException (const char *name, PyObject *base, PyObject *dict)
{
- return PyObject_HasAttrString (obj, (char *) attr);
+ return PyErr_NewException (const_cast<char *> (name), base, dict);
}
-#define PyObject_HasAttrString(obj, attr) gdb_PyObject_HasAttrString (obj, attr)
+#define PyErr_NewException gdb_PyErr_NewException
+
+/* PySys_GetObject's 'name' parameter was missing the 'const'
+ qualifier before Python 3.4. Hence, we wrap it in a function to
+ avoid errors when compiled with -Werror. */
+
+static inline PyObject *
+gdb_PySys_GetObject (const char *name)
+{
+ return PySys_GetObject (const_cast<char *> (name));
+}
+
+#define PySys_GetObject gdb_PySys_GetObject
+
+/* PySys_SetPath's 'path' parameter was missing the 'const' qualifier
+ before Python 3.6. Hence, we wrap it in a function to avoid errors
+ when compiled with -Werror. */
+
+#ifdef IS_PY3K
+# define GDB_PYSYS_SETPATH_CHAR wchar_t
+#else
+# define GDB_PYSYS_SETPATH_CHAR char
+#endif
+
+static inline void
+gdb_PySys_SetPath (const GDB_PYSYS_SETPATH_CHAR *path)
+{
+ PySys_SetPath (const_cast<GDB_PYSYS_SETPATH_CHAR *> (path));
+}
+
+#define PySys_SetPath gdb_PySys_SetPath
+
+/* Wrap PyGetSetDef to allow convenient construction with string
+ literals. Unfortunately, PyGetSetDef's 'name' and 'doc' members
+ are 'char *' instead of 'const char *', meaning that in order to
+ list-initialize PyGetSetDef arrays with string literals (and
+ without the wrapping below) would require writing explicit 'char *'
+ casts. Instead, we extend PyGetSetDef and add constexpr
+ constructors that accept const 'name' and 'doc', hiding the ugly
+ casts here in a single place. */
+
+struct gdb_PyGetSetDef : PyGetSetDef
+{
+ constexpr gdb_PyGetSetDef (const char *name_, getter get_, setter set_,
+ const char *doc_, void *closure_)
+ : PyGetSetDef {const_cast<char *> (name_), get_, set_,
+ const_cast<char *> (doc_), closure_}
+ {}
+
+ /* Alternative constructor that allows omitting the closure in list
+ initialization. */
+ constexpr gdb_PyGetSetDef (const char *name_, getter get_, setter set_,
+ const char *doc_)
+ : gdb_PyGetSetDef {name_, get_, set_, doc_, NULL}
+ {}
+
+ /* Constructor for the sentinel entries. */
+ constexpr gdb_PyGetSetDef (std::nullptr_t)
+ : gdb_PyGetSetDef {NULL, NULL, NULL, NULL, NULL}
+ {}
+};
+
+/* The 'keywords' parameter of PyArg_ParseTupleAndKeywords has type
+ 'char **'. However, string literals are const in C++, and so to
+ avoid casting at every keyword array definition, we'll need to make
+ the keywords array an array of 'const char *'. To avoid having all
+ callers add a 'const_cast<char **>' themselves when passing such an
+ array through 'char **', we define our own version of
+ PyArg_ParseTupleAndKeywords here with a corresponding 'keywords'
+ parameter type that does the cast in a single place. (This is not
+ an overload of PyArg_ParseTupleAndKeywords in order to make it
+ clearer that we're calling our own function instead of a function
+ that exists in some newer Python version.) */
+
+static inline int
+gdb_PyArg_ParseTupleAndKeywords (PyObject *args, PyObject *kw,
+ const char *format, const char **keywords, ...)
+{
+ va_list ap;
+ int res;
+
+ va_start (ap, keywords);
+ res = PyArg_VaParseTupleAndKeywords (args, kw, format,
+ const_cast<char **> (keywords),
+ ap);
+ va_end (ap);
+
+ return res;
+}
/* In order to be able to parse symtab_and_line_to_sal_object function
a real symtab_and_line structure is needed. */
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("symbol_object");
extern PyTypeObject event_object_type
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
-extern PyTypeObject stop_event_object_type
- CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
extern PyTypeObject breakpoint_object_type
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("breakpoint_object");
extern PyTypeObject frame_object_type
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("frame_object");
+extern PyTypeObject thread_object_type
+ CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("thread_object");
-typedef struct gdbpy_breakpoint_object
+struct gdbpy_breakpoint_object
{
PyObject_HEAD
/* 1 is this is a FinishBreakpoint object, 0 otherwise. */
int is_finish_bp;
-} gdbpy_breakpoint_object;
+};
/* Require that BREAKPOINT be a valid breakpoint ID; throw a Python
exception if it is invalid. */
#define BPPY_REQUIRE_VALID(Breakpoint) \
do { \
if ((Breakpoint)->bp == NULL) \
- return PyErr_Format (PyExc_RuntimeError, \
- _("Breakpoint %d is invalid."), \
- (Breakpoint)->number); \
+ return PyErr_Format (PyExc_RuntimeError, \
+ _("Breakpoint %d is invalid."), \
+ (Breakpoint)->number); \
} while (0)
/* Require that BREAKPOINT be a valid breakpoint ID; throw a Python
#define BPPY_SET_REQUIRE_VALID(Breakpoint) \
do { \
if ((Breakpoint)->bp == NULL) \
- { \
- PyErr_Format (PyExc_RuntimeError, _("Breakpoint %d is invalid."), \
- (Breakpoint)->number); \
- return -1; \
- } \
+ { \
+ PyErr_Format (PyExc_RuntimeError, _("Breakpoint %d is invalid."), \
+ (Breakpoint)->number); \
+ return -1; \
+ } \
} while (0)
extern gdbpy_breakpoint_object *bppy_pending_object;
-typedef struct
+struct thread_object
{
PyObject_HEAD
/* The Inferior object to which this thread belongs. */
PyObject *inf_obj;
-} thread_object;
+};
+
+struct inferior_object;
extern struct cmd_list_element *set_python_list;
extern struct cmd_list_element *show_python_list;
\f
/* extension_language_script_ops "methods". */
-extern int gdbpy_auto_load_enabled (const struct extension_language_defn *);
+/* Return true if auto-loading Python scripts is enabled.
+ This is the extension_language_script_ops.auto_load_enabled "method". */
+
+extern bool gdbpy_auto_load_enabled (const struct extension_language_defn *);
/* extension_language_ops "methods". */
extern enum ext_lang_rc gdbpy_apply_val_pretty_printer
(const struct extension_language_defn *,
- struct type *type, const gdb_byte *valaddr,
- int embedded_offset, CORE_ADDR address,
+ struct value *value,
struct ui_file *stream, int recurse,
- const struct value *val,
const struct value_print_options *options,
const struct language_defn *language);
extern enum ext_lang_bt_status gdbpy_apply_frame_filter
(const struct extension_language_defn *,
- struct frame_info *frame, int flags, enum ext_lang_frame_args args_type,
+ struct frame_info *frame, frame_filter_flags flags,
+ enum ext_lang_frame_args args_type,
struct ui_out *out, int frame_low, int frame_high);
extern void gdbpy_preserve_values (const struct extension_language_defn *,
struct objfile *objfile,
extern int gdbpy_breakpoint_has_cond (const struct extension_language_defn *,
struct breakpoint *b);
-extern void *gdbpy_clone_xmethod_worker_data
- (const struct extension_language_defn *extlang, void *data);
-extern void gdbpy_free_xmethod_worker_data
- (const struct extension_language_defn *extlang, void *data);
extern enum ext_lang_rc gdbpy_get_matching_xmethod_workers
(const struct extension_language_defn *extlang,
struct type *obj_type, const char *method_name,
- xmethod_worker_vec **dm_vec);
-extern enum ext_lang_rc gdbpy_get_xmethod_arg_types
- (const struct extension_language_defn *extlang,
- struct xmethod_worker *worker,
- int *nargs,
- struct type ***arg_types);
-extern enum ext_lang_rc gdbpy_get_xmethod_result_type
- (const struct extension_language_defn *extlang,
- struct xmethod_worker *worker,
- struct value *object, struct value **args, int nargs,
- struct type **result_type);
-extern struct value *gdbpy_invoke_xmethod
- (const struct extension_language_defn *extlang,
- struct xmethod_worker *worker,
- struct value *obj, struct value **args, int nargs);
+ std::vector<xmethod_worker_up> *dm_vec);
+
\f
PyObject *gdbpy_history (PyObject *self, PyObject *args);
+PyObject *gdbpy_convenience_variable (PyObject *self, PyObject *args);
+PyObject *gdbpy_set_convenience_variable (PyObject *self, PyObject *args);
PyObject *gdbpy_breakpoints (PyObject *, PyObject *);
PyObject *gdbpy_frame_stop_reason_string (PyObject *, PyObject *);
PyObject *gdbpy_lookup_symbol (PyObject *self, PyObject *args, PyObject *kw);
PyObject *gdbpy_lookup_global_symbol (PyObject *self, PyObject *args,
PyObject *kw);
+PyObject *gdbpy_lookup_static_symbol (PyObject *self, PyObject *args,
+ PyObject *kw);
+PyObject *gdbpy_lookup_static_symbols (PyObject *self, PyObject *args,
+ PyObject *kw);
+PyObject *gdbpy_start_recording (PyObject *self, PyObject *args);
+PyObject *gdbpy_current_recording (PyObject *self, PyObject *args);
+PyObject *gdbpy_stop_recording (PyObject *self, PyObject *args);
PyObject *gdbpy_newest_frame (PyObject *self, PyObject *args);
PyObject *gdbpy_selected_frame (PyObject *self, PyObject *args);
-PyObject *gdbpy_block_for_pc (PyObject *self, PyObject *args);
PyObject *gdbpy_lookup_type (PyObject *self, PyObject *args, PyObject *kw);
int gdbpy_is_field (PyObject *obj);
PyObject *gdbpy_create_lazy_string_object (CORE_ADDR address, long length,
PyObject *gdbpy_selected_thread (PyObject *self, PyObject *args);
PyObject *gdbpy_selected_inferior (PyObject *self, PyObject *args);
PyObject *gdbpy_string_to_argv (PyObject *self, PyObject *args);
-PyObject *gdbpy_parameter (PyObject *self, PyObject *args);
PyObject *gdbpy_parameter_value (enum var_types type, void *var);
-char *gdbpy_parse_command_name (const char *name,
- struct cmd_list_element ***base_list,
- struct cmd_list_element **start_list);
+gdb::unique_xmalloc_ptr<char> gdbpy_parse_command_name
+ (const char *name, struct cmd_list_element ***base_list,
+ struct cmd_list_element **start_list);
+PyObject *gdbpy_register_tui_window (PyObject *self, PyObject *args,
+ PyObject *kw);
PyObject *symtab_and_line_to_sal_object (struct symtab_and_line sal);
PyObject *symtab_to_symtab_object (struct symtab *symtab);
PyObject *block_to_block_object (const struct block *block,
struct objfile *objfile);
PyObject *value_to_value_object (struct value *v);
+PyObject *value_to_value_object_no_release (struct value *v);
PyObject *type_to_type_object (struct type *);
PyObject *frame_info_to_frame_object (struct frame_info *frame);
PyObject *symtab_to_linetable_object (PyObject *symtab);
-PyObject *pspace_to_pspace_object (struct program_space *)
- CPYCHECKER_RETURNS_BORROWED_REF;
+gdbpy_ref<> pspace_to_pspace_object (struct program_space *);
PyObject *pspy_get_printers (PyObject *, void *);
PyObject *pspy_get_frame_filters (PyObject *, void *);
PyObject *pspy_get_frame_unwinders (PyObject *, void *);
PyObject *pspy_get_xmethods (PyObject *, void *);
-PyObject *objfile_to_objfile_object (struct objfile *)
- CPYCHECKER_RETURNS_BORROWED_REF;
+gdbpy_ref<> objfile_to_objfile_object (struct objfile *);
PyObject *objfpy_get_printers (PyObject *, void *);
PyObject *objfpy_get_frame_filters (PyObject *, void *);
PyObject *objfpy_get_frame_unwinders (PyObject *, void *);
PyObject *gdbarch_to_arch_object (struct gdbarch *gdbarch);
-thread_object *create_thread_object (struct thread_info *tp);
-thread_object *find_thread_object (ptid_t ptid)
- CPYCHECKER_RETURNS_BORROWED_REF;
-PyObject *find_inferior_object (int pid);
-PyObject *inferior_to_inferior_object (struct inferior *inferior);
+PyObject *gdbpy_new_register_descriptor_iterator (struct gdbarch *gdbarch,
+ const char *group_name);
+PyObject *gdbpy_new_reggroup_iterator (struct gdbarch *gdbarch);
+
+gdbpy_ref<thread_object> create_thread_object (struct thread_info *tp);
+gdbpy_ref<> thread_to_thread_object (thread_info *thr);;
+gdbpy_ref<inferior_object> inferior_to_inferior_object (inferior *inf);
const struct block *block_object_to_block (PyObject *obj);
struct symbol *symbol_object_to_symbol (PyObject *obj);
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_frames (void)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
+int gdbpy_initialize_instruction (void)
+ CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
+int gdbpy_initialize_btrace (void)
+ CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
+int gdbpy_initialize_record (void)
+ CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_symtabs (void)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_commands (void)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_py_events (void)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-int gdbpy_initialize_stop_event (void)
- CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-int gdbpy_initialize_signal_event (void)
- CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-int gdbpy_initialize_breakpoint_event (void)
- CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-int gdbpy_initialize_continue_event (void)
- CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-int gdbpy_initialize_inferior_call_pre_event (void)
- CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-int gdbpy_initialize_inferior_call_post_event (void)
- CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-int gdbpy_initialize_register_changed_event (void)
- CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-int gdbpy_initialize_memory_changed_event (void)
- CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-int gdbpy_initialize_exited_event (void)
- CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-int gdbpy_initialize_thread_event (void)
- CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-int gdbpy_initialize_new_objfile_event (void)
- CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-int gdbpy_initialize_clear_objfiles_event (void)
- CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_arch (void)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
+int gdbpy_initialize_registers ()
+ CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_xmethods (void)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_unwind (void)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
+int gdbpy_initialize_tui ()
+ CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
+
+/* A wrapper for PyErr_Fetch that handles reference counting for the
+ caller. */
+class gdbpy_err_fetch
+{
+public:
+
+ gdbpy_err_fetch ()
+ {
+ PyErr_Fetch (&m_error_type, &m_error_value, &m_error_traceback);
+ }
+
+ ~gdbpy_err_fetch ()
+ {
+ Py_XDECREF (m_error_type);
+ Py_XDECREF (m_error_value);
+ Py_XDECREF (m_error_traceback);
+ }
+
+ /* Call PyErr_Restore using the values stashed in this object.
+ After this call, this object is invalid and neither the to_string
+ nor restore methods may be used again. */
+
+ void restore ()
+ {
+ PyErr_Restore (m_error_type, m_error_value, m_error_traceback);
+ m_error_type = nullptr;
+ m_error_value = nullptr;
+ m_error_traceback = nullptr;
+ }
+
+ /* Return the string representation of the exception represented by
+ this object. If the result is NULL a python error occurred, the
+ caller must clear it. */
+
+ gdb::unique_xmalloc_ptr<char> to_string () const;
+
+ /* Return the string representation of the type of the exception
+ represented by this object. If the result is NULL a python error
+ occurred, the caller must clear it. */
+
+ gdb::unique_xmalloc_ptr<char> type_to_string () const;
+
+ /* Return true if the stored type matches TYPE, false otherwise. */
+
+ bool type_matches (PyObject *type) const
+ {
+ return PyErr_GivenExceptionMatches (m_error_type, type);
+ }
+
+private:
+
+ PyObject *m_error_type, *m_error_value, *m_error_traceback;
+};
+
+/* Called before entering the Python interpreter to install the
+ current language and architecture to be used for Python values.
+ Also set the active extension language for GDB so that SIGINT's
+ are directed our way, and if necessary install the right SIGINT
+ handler. */
+class gdbpy_enter
+{
+ public:
+
+ gdbpy_enter (struct gdbarch *gdbarch, const struct language_defn *language);
-struct cleanup *make_cleanup_py_decref (PyObject *py);
-struct cleanup *make_cleanup_py_xdecref (PyObject *py);
+ ~gdbpy_enter ();
+
+ DISABLE_COPY_AND_ASSIGN (gdbpy_enter);
+
+ private:
+
+ struct active_ext_lang_state *m_previous_active;
+ PyGILState_STATE m_state;
+ struct gdbarch *m_gdbarch;
+ const struct language_defn *m_language;
+
+ /* An optional is used here because we don't want to call
+ PyErr_Fetch too early. */
+ gdb::optional<gdbpy_err_fetch> m_error;
+};
+
+/* Like gdbpy_enter, but takes a varobj. This is a subclass just to
+ make constructor delegation a little nicer. */
+class gdbpy_enter_varobj : public gdbpy_enter
+{
+ public:
-struct cleanup *ensure_python_env (struct gdbarch *gdbarch,
- const struct language_defn *language);
+ /* This is defined in varobj.c, where it can access varobj
+ internals. */
+ gdbpy_enter_varobj (const struct varobj *var);
+
+};
+
+/* The opposite of gdb_enter: this releases the GIL around a region,
+ allowing other Python threads to run. No Python APIs may be used
+ while this is active. */
+class gdbpy_allow_threads
+{
+public:
+
+ gdbpy_allow_threads ()
+ : m_save (PyEval_SaveThread ())
+ {
+ gdb_assert (m_save != nullptr);
+ }
+
+ ~gdbpy_allow_threads ()
+ {
+ PyEval_RestoreThread (m_save);
+ }
+
+ DISABLE_COPY_AND_ASSIGN (gdbpy_allow_threads);
+
+private:
+
+ PyThreadState *m_save;
+};
extern struct gdbarch *python_gdbarch;
extern const struct language_defn *python_language;
if (Exception.reason < 0) \
{ \
gdbpy_convert_exception (Exception); \
- return NULL; \
+ return NULL; \
} \
} while (0)
#define GDB_PY_SET_HANDLE_EXCEPTION(Exception) \
do { \
if (Exception.reason < 0) \
- { \
+ { \
gdbpy_convert_exception (Exception); \
return -1; \
} \
int gdbpy_print_python_errors_p (void);
void gdbpy_print_stack (void);
-
-PyObject *python_string_to_unicode (PyObject *obj);
-char *unicode_to_target_string (PyObject *unicode_str);
-char *python_string_to_target_string (PyObject *obj);
-PyObject *python_string_to_target_python_string (PyObject *obj);
-char *python_string_to_host_string (PyObject *obj);
+void gdbpy_print_stack_or_quit ();
+void gdbpy_handle_exception () ATTRIBUTE_NORETURN;
+
+gdbpy_ref<> python_string_to_unicode (PyObject *obj);
+gdb::unique_xmalloc_ptr<char> unicode_to_target_string (PyObject *unicode_str);
+gdb::unique_xmalloc_ptr<char> python_string_to_target_string (PyObject *obj);
+gdbpy_ref<> python_string_to_target_python_string (PyObject *obj);
+gdb::unique_xmalloc_ptr<char> python_string_to_host_string (PyObject *obj);
+gdbpy_ref<> host_string_to_python_string (const char *str);
int gdbpy_is_string (PyObject *obj);
-char *gdbpy_obj_to_string (PyObject *obj);
-char *gdbpy_exception_to_string (PyObject *ptype, PyObject *pvalue);
+gdb::unique_xmalloc_ptr<char> gdbpy_obj_to_string (PyObject *obj);
int gdbpy_is_lazy_string (PyObject *result);
void gdbpy_extract_lazy_string (PyObject *string, CORE_ADDR *addr,
struct type **str_type,
- long *length, char **encoding);
+ long *length,
+ gdb::unique_xmalloc_ptr<char> *encoding);
int gdbpy_is_value_object (PyObject *obj);
/* Note that these are declared here, and not in python.h with the
other pretty-printer functions, because they refer to PyObject. */
-PyObject *apply_varobj_pretty_printer (PyObject *print_obj,
- struct value **replacement,
- struct ui_file *stream);
-PyObject *gdbpy_get_varobj_pretty_printer (struct value *value);
-char *gdbpy_get_display_hint (PyObject *printer);
+gdbpy_ref<> apply_varobj_pretty_printer (PyObject *print_obj,
+ struct value **replacement,
+ struct ui_file *stream);
+gdbpy_ref<> gdbpy_get_varobj_pretty_printer (struct value *value);
+gdb::unique_xmalloc_ptr<char> gdbpy_get_display_hint (PyObject *printer);
PyObject *gdbpy_default_visualizer (PyObject *self, PyObject *args);
void bpfinishpy_pre_stop_hook (struct gdbpy_breakpoint_object *bp_obj);
extern PyObject *gdbpy_gdb_memory_error;
extern PyObject *gdbpy_gdberror_exc;
-extern void gdbpy_convert_exception (struct gdb_exception)
+extern void gdbpy_convert_exception (const struct gdb_exception &)
CPYCHECKER_SETS_EXCEPTION;
int get_addr_from_python (PyObject *obj, CORE_ADDR *addr)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
-PyObject *gdb_py_object_from_longest (LONGEST l);
-PyObject *gdb_py_object_from_ulongest (ULONGEST l);
+gdbpy_ref<> gdb_py_object_from_longest (LONGEST l);
+gdbpy_ref<> gdb_py_object_from_ulongest (ULONGEST l);
int gdb_py_int_as_long (PyObject *, long *);
PyObject *gdb_py_generic_dict (PyObject *self, void *closure);
struct varobj_iter;
struct varobj;
-struct varobj_iter *py_varobj_get_iterator (struct varobj *var,
- PyObject *printer);
+std::unique_ptr<varobj_iter> py_varobj_get_iterator (struct varobj *var,
+ PyObject *printer);
-#endif /* GDB_PYTHON_INTERNAL_H */
+/* Deleter for Py_buffer unique_ptr specialization. */
+
+struct Py_buffer_deleter
+{
+ void operator() (Py_buffer *b) const
+ {
+ PyBuffer_Release (b);
+ }
+};
+
+/* A unique_ptr specialization for Py_buffer. */
+typedef std::unique_ptr<Py_buffer, Py_buffer_deleter> Py_buffer_up;
+
+/* Parse a register number from PYO_REG_ID and place the register number
+ into *REG_NUM. The register is a register for GDBARCH.
+
+ If a register is parsed successfully then *REG_NUM will have been
+ updated, and true is returned. Otherwise the contents of *REG_NUM are
+ undefined, and false is returned.
+
+ The PYO_REG_ID object can be a string, the name of the register. This
+ is the slowest approach as GDB has to map the name to a number for each
+ call. Alternatively PYO_REG_ID can be an internal GDB register
+ number. This is quick but should not be encouraged as this means
+ Python scripts are now dependent on GDB's internal register numbering.
+ Final PYO_REG_ID can be a gdb.RegisterDescriptor object, these objects
+ can be looked up by name once, and then cache the register number so
+ should be as quick as using a register number. */
+
+extern bool gdbpy_parse_register_id (struct gdbarch *gdbarch,
+ PyObject *pyo_reg_id, int *reg_num);
+
+#endif /* PYTHON_PYTHON_INTERNAL_H */
projects / binutils.git / blobdiff