/* Gdb/Python header for private use by Python module.
- Copyright (C) 2008-2014 Free Software Foundation, Inc.
+ Copyright (C) 2008-2018 Free Software Foundation, Inc.
This file is part of GDB.
#define GDB_PYTHON_INTERNAL_H
#include "extension.h"
+#include "extension-priv.h"
/* These WITH_* macros are defined by the CPython API checker that
comes with the Python plugin for GCC. See:
#define CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION
#endif
-#include <stdio.h>
-
/* Python 2.4 doesn't include stdint.h soon enough to get {u,}intptr_t
needed by pyport.h. */
-#include <stdint.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
#define PyInt_Check PyLong_Check
#define PyInt_FromLong PyLong_FromLong
+#define PyInt_FromSsize_t PyLong_FromSsize_t
#define PyInt_AsLong PyLong_AsLong
+#define PyInt_AsSsize_t PyLong_AsSsize_t
#define PyString_FromString PyUnicode_FromString
#define PyString_Decode PyUnicode_Decode
#endif /* HAVE_LONG_LONG */
+#if PY_VERSION_HEX < 0x03020000
+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. */
#define PyObject_HasAttrString(obj, attr) gdb_PyObject_HasAttrString (obj, attr)
+/* 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_CallMethod (PyObject *o, const char *method, const char *format,
+ Args... args) /* ARI: editCase function */
+{
+ return PyObject_CallMethod (o,
+ const_cast<char *> (method),
+ const_cast<char *> (format),
+ args...);
+}
+
+#undef PyObject_CallMethod
+#define PyObject_CallMethod gdb_PyObject_CallMethod
+
+/* 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 PyObject*
+gdb_PyErr_NewException (const char *name, PyObject *base, PyObject *dict)
+{
+ return PyErr_NewException (const_cast<char *> (name), base, dict);
+}
+
+#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. */
#include "symtab.h"
#include "command.h"
#include "breakpoint.h"
-#include "exceptions.h"
-
enum gdbpy_iter_kind { iter_keys, iter_values, iter_items };
struct block;
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
{
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 type *type,
+ LONGEST embedded_offset, CORE_ADDR address,
struct ui_file *stream, int recurse,
- const struct value *val,
+ 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 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_breakpoints (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_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);
const char *encoding,
struct type *type);
PyObject *gdbpy_inferiors (PyObject *unused, PyObject *unused2);
+PyObject *gdbpy_create_ptid_object (ptid_t ptid);
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,
CPYCHECKER_RETURNS_BORROWED_REF;
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;
PyObject *objfpy_get_printers (PyObject *, void *);
PyObject *objfpy_get_frame_filters (PyObject *, void *);
+PyObject *objfpy_get_frame_unwinders (PyObject *, void *);
PyObject *objfpy_get_xmethods (PyObject *, void *);
+PyObject *gdbpy_lookup_objfile (PyObject *self, PyObject *args, PyObject *kw);
PyObject *gdbarch_to_arch_object (struct gdbarch *gdbarch);
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_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_arch (void)
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;
+
+/* 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);
+
+ ~gdbpy_enter ();
-struct cleanup *make_cleanup_py_decref (PyObject *py);
-struct cleanup *make_cleanup_py_xdecref (PyObject *py);
+ DISABLE_COPY_AND_ASSIGN (gdbpy_enter);
-struct cleanup *ensure_python_env (struct gdbarch *gdbarch,
- const struct language_defn *language);
+ private:
+
+ struct active_ext_lang_state *m_previous_active;
+ PyGILState_STATE m_state;
+ struct gdbarch *m_gdbarch;
+ const struct language_defn *m_language;
+ PyObject *m_error_type, *m_error_value, *m_error_traceback;
+};
+
+/* 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:
+
+ /* This is defined in varobj.c, where it can access varobj
+ internals. */
+ gdbpy_enter_varobj (const struct varobj *var);
+
+};
extern struct gdbarch *python_gdbarch;
extern const struct language_defn *python_language;
} \
} while (0)
+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);
+gdb::unique_xmalloc_ptr<char> unicode_to_target_string (PyObject *unicode_str);
+gdb::unique_xmalloc_ptr<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);
+gdb::unique_xmalloc_ptr<char> python_string_to_host_string (PyObject *obj);
+PyObject *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);
+gdb::unique_xmalloc_ptr<char> gdbpy_exception_to_string (PyObject *ptype,
+ PyObject *pvalue);
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);
struct value **replacement,
struct ui_file *stream);
PyObject *gdbpy_get_varobj_pretty_printer (struct value *value);
-char *gdbpy_get_display_hint (PyObject *printer);
+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);
PyObject *object)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
+struct varobj_iter;
+struct varobj;
+struct varobj_iter *py_varobj_get_iterator (struct varobj *var,
+ PyObject *printer);
+
#endif /* GDB_PYTHON_INTERNAL_H */