/* Python interface to types.
- Copyright (C) 2008-2012 Free Software Foundation, Inc.
+ Copyright (C) 2008-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "value.h"
-#include "exceptions.h"
#include "python-internal.h"
#include "charset.h"
#include "gdbtypes.h"
#include "demangle.h"
#include "objfiles.h"
#include "language.h"
-#include "vec.h"
-#include "bcache.h"
-#include "dwarf2loc.h"
#include "typeprint.h"
typedef struct pyty_type_object
struct pyty_type_object *next;
} type_object;
-static PyTypeObject type_object_type;
+extern PyTypeObject type_object_type
+ CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("type_object");
/* A Field object. */
typedef struct pyty_field_object
PyObject *dict;
} field_object;
-static PyTypeObject field_object_type;
+extern PyTypeObject field_object_type
+ CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("field_object");
/* A type iterator object. */
typedef struct {
struct pyty_type_object *source;
} typy_iterator_object;
-static PyTypeObject type_iterator_object_type;
+extern PyTypeObject type_iterator_object_type
+ CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("typy_iterator_object");
/* This is used to initialize various gdb.TYPE_ constants. */
struct pyty_code
ENTRY (TYPE_CODE_METHODPTR),
ENTRY (TYPE_CODE_MEMBERPTR),
ENTRY (TYPE_CODE_REF),
+ ENTRY (TYPE_CODE_RVALUE_REF),
ENTRY (TYPE_CODE_CHAR),
ENTRY (TYPE_CODE_BOOL),
ENTRY (TYPE_CODE_COMPLEX),
field_object *f = (field_object *) obj;
Py_XDECREF (f->dict);
- f->ob_type->tp_free (obj);
+ Py_TYPE (obj)->tp_free (obj);
}
static PyObject *
field_new (void)
{
- field_object *result = PyObject_New (field_object, &field_object_type);
+ gdbpy_ref<field_object> result (PyObject_New (field_object,
+ &field_object_type));
- if (result)
+ if (result != NULL)
{
result->dict = PyDict_New ();
if (!result->dict)
- {
- Py_DECREF (result);
- result = NULL;
- }
+ return NULL;
}
- return (PyObject *) result;
+ return (PyObject *) result.release ();
}
\f
+/* Return true if OBJ is of type gdb.Field, false otherwise. */
+
+int
+gdbpy_is_field (PyObject *obj)
+{
+ return PyObject_TypeCheck (obj, &field_object_type);
+}
+
/* Return the code for this type. */
static PyObject *
typy_get_code (PyObject *self, void *closure)
/* Helper function for typy_fields which converts a single field to a
gdb.Field object. Returns NULL on error. */
-static PyObject *
+static gdbpy_ref<>
convert_field (struct type *type, int field)
{
- PyObject *result = field_new ();
- PyObject *arg;
+ gdbpy_ref<> result (field_new ());
+
+ if (result == NULL)
+ return NULL;
- if (!result)
+ gdbpy_ref<> arg (type_to_type_object (type));
+ if (arg == NULL)
+ return NULL;
+ if (PyObject_SetAttrString (result.get (), "parent_type", arg.get ()) < 0)
return NULL;
if (!field_is_static (&TYPE_FIELD (type, field)))
if (TYPE_CODE (type) == TYPE_CODE_ENUM)
{
- arg = gdb_py_long_from_longest (TYPE_FIELD_ENUMVAL (type, field));
+ arg.reset (gdb_py_long_from_longest (TYPE_FIELD_ENUMVAL (type,
+ field)));
attrstring = "enumval";
}
else
{
- arg = gdb_py_long_from_longest (TYPE_FIELD_BITPOS (type, field));
+ arg.reset (gdb_py_long_from_longest (TYPE_FIELD_BITPOS (type,
+ field)));
attrstring = "bitpos";
}
- if (!arg)
- goto fail;
+ if (arg == NULL)
+ return NULL;
- /* At least python-2.4 had the second parameter non-const. */
- if (PyObject_SetAttrString (result, (char *) attrstring, arg) < 0)
- goto failarg;
- Py_DECREF (arg);
+ if (PyObject_SetAttrString (result.get (), attrstring, arg.get ()) < 0)
+ return NULL;
}
+ arg.reset (NULL);
if (TYPE_FIELD_NAME (type, field))
- arg = PyString_FromString (TYPE_FIELD_NAME (type, field));
- else
{
- arg = Py_None;
- Py_INCREF (arg);
+ const char *field_name = TYPE_FIELD_NAME (type, field);
+
+ if (field_name[0] != '\0')
+ {
+ arg.reset (PyString_FromString (TYPE_FIELD_NAME (type, field)));
+ if (arg == NULL)
+ return NULL;
+ }
}
- if (!arg)
- goto fail;
- if (PyObject_SetAttrString (result, "name", arg) < 0)
- goto failarg;
- Py_DECREF (arg);
+ if (arg == NULL)
+ arg = gdbpy_ref<>::new_reference (Py_None);
+
+ if (PyObject_SetAttrString (result.get (), "name", arg.get ()) < 0)
+ return NULL;
- arg = TYPE_FIELD_ARTIFICIAL (type, field) ? Py_True : Py_False;
- Py_INCREF (arg);
- if (PyObject_SetAttrString (result, "artificial", arg) < 0)
- goto failarg;
- Py_DECREF (arg);
+ arg = gdbpy_ref<>::new_reference (TYPE_FIELD_ARTIFICIAL (type, field)
+ ? Py_True : Py_False);
+ if (PyObject_SetAttrString (result.get (), "artificial", arg.get ()) < 0)
+ return NULL;
- if (TYPE_CODE (type) == TYPE_CODE_CLASS)
- arg = field < TYPE_N_BASECLASSES (type) ? Py_True : Py_False;
+ if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
+ arg = gdbpy_ref<>::new_reference (field < TYPE_N_BASECLASSES (type)
+ ? Py_True : Py_False);
else
- arg = Py_False;
- Py_INCREF (arg);
- if (PyObject_SetAttrString (result, "is_base_class", arg) < 0)
- goto failarg;
- Py_DECREF (arg);
-
- arg = PyLong_FromLong (TYPE_FIELD_BITSIZE (type, field));
- if (!arg)
- goto fail;
- if (PyObject_SetAttrString (result, "bitsize", arg) < 0)
- goto failarg;
- Py_DECREF (arg);
+ arg = gdbpy_ref<>::new_reference (Py_False);
+ if (PyObject_SetAttrString (result.get (), "is_base_class", arg.get ()) < 0)
+ return NULL;
+
+ arg.reset (PyLong_FromLong (TYPE_FIELD_BITSIZE (type, field)));
+ if (arg == NULL)
+ return NULL;
+ if (PyObject_SetAttrString (result.get (), "bitsize", arg.get ()) < 0)
+ return NULL;
/* A field can have a NULL type in some situations. */
if (TYPE_FIELD_TYPE (type, field) == NULL)
- {
- arg = Py_None;
- Py_INCREF (arg);
- }
+ arg = gdbpy_ref<>::new_reference (Py_None);
else
- arg = type_to_type_object (TYPE_FIELD_TYPE (type, field));
- if (!arg)
- goto fail;
- if (PyObject_SetAttrString (result, "type", arg) < 0)
- goto failarg;
- Py_DECREF (arg);
+ arg.reset (type_to_type_object (TYPE_FIELD_TYPE (type, field)));
+ if (arg == NULL)
+ return NULL;
+ if (PyObject_SetAttrString (result.get (), "type", arg.get ()) < 0)
+ return NULL;
return result;
-
- failarg:
- Py_DECREF (arg);
- fail:
- Py_DECREF (result);
- return NULL;
}
/* Helper function to return the name of a field, as a gdb.Field object.
If the field doesn't have a name, None is returned. */
-static PyObject *
+static gdbpy_ref<>
field_name (struct type *type, int field)
{
- PyObject *result;
+ gdbpy_ref<> result;
if (TYPE_FIELD_NAME (type, field))
- result = PyString_FromString (TYPE_FIELD_NAME (type, field));
+ result.reset (PyString_FromString (TYPE_FIELD_NAME (type, field)));
else
- {
- result = Py_None;
- Py_INCREF (result);
- }
+ result = gdbpy_ref<>::new_reference (Py_None);
+
return result;
}
the field, or a tuple consisting of field name and gdb.Field
object. */
-static PyObject *
+static gdbpy_ref<>
make_fielditem (struct type *type, int i, enum gdbpy_iter_kind kind)
{
- PyObject *item = NULL, *key = NULL, *value = NULL;
-
switch (kind)
{
case iter_items:
- key = field_name (type, i);
- if (key == NULL)
- goto fail;
- value = convert_field (type, i);
- if (value == NULL)
- goto fail;
- item = PyTuple_New (2);
- if (item == NULL)
- goto fail;
- PyTuple_SET_ITEM (item, 0, key);
- PyTuple_SET_ITEM (item, 1, value);
- break;
+ {
+ gdbpy_ref<> key (field_name (type, i));
+ if (key == NULL)
+ return NULL;
+ gdbpy_ref<> value = convert_field (type, i);
+ if (value == NULL)
+ return NULL;
+ gdbpy_ref<> item (PyTuple_New (2));
+ if (item == NULL)
+ return NULL;
+ PyTuple_SET_ITEM (item.get (), 0, key.release ());
+ PyTuple_SET_ITEM (item.get (), 1, value.release ());
+ return item;
+ }
case iter_keys:
- item = field_name (type, i);
- break;
+ return field_name (type, i);
case iter_values:
- item = convert_field (type, i);
- break;
+ return convert_field (type, i);
}
- return item;
-
- fail:
- Py_XDECREF (key);
- Py_XDECREF (value);
- Py_XDECREF (item);
- return NULL;
+ gdb_assert_not_reached ("invalid gdbpy_iter_kind");
}
/* Return a sequence of all field names, fields, or (name, field) pairs.
typy_fields_items (PyObject *self, enum gdbpy_iter_kind kind)
{
PyObject *py_type = self;
- PyObject *result = NULL, *iter = NULL;
- volatile struct gdb_exception except;
struct type *type = ((type_object *) py_type)->type;
struct type *checked_type = type;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
- CHECK_TYPEDEF (checked_type);
+ checked_type = check_typedef (checked_type);
}
- GDB_PY_HANDLE_EXCEPTION (except);
-
- if (checked_type != type)
- py_type = type_to_type_object (checked_type);
- iter = typy_make_iter (py_type, kind);
- if (checked_type != type)
+ catch (const gdb_exception &except)
{
- /* Need to wrap this in braces because Py_DECREF isn't wrapped
- in a do{}while(0). */
- Py_DECREF (py_type);
+ GDB_PY_HANDLE_EXCEPTION (except);
}
- if (iter != NULL)
+
+ gdbpy_ref<> type_holder;
+ if (checked_type != type)
{
- result = PySequence_List (iter);
- Py_DECREF (iter);
+ type_holder.reset (type_to_type_object (checked_type));
+ if (type_holder == nullptr)
+ return nullptr;
+ py_type = type_holder.get ();
}
+ gdbpy_ref<> iter (typy_make_iter (py_type, kind));
+ if (iter == nullptr)
+ return nullptr;
- return result;
+ return PySequence_List (iter.get ());
}
/* Return a sequence of all fields. Each field is a gdb.Field object. */
}
/* Return a sequence of all fields. Each field is a gdb.Field object.
- This method is similar to typy_values, except where the supplied
+ This method is similar to typy_values, except where the supplied
gdb.Type is an array, in which case it returns a list of one entry
which is a gdb.Field object for a range (the array bounds). */
typy_fields (PyObject *self, PyObject *args)
{
struct type *type = ((type_object *) self)->type;
- PyObject *r, *rl;
-
+
if (TYPE_CODE (type) != TYPE_CODE_ARRAY)
return typy_fields_items (self, iter_values);
/* Array type. Handle this as a special case because the common
machinery wants struct or union or enum types. Build a list of
one entry which is the range for the array. */
- r = convert_field (type, 0);
+ gdbpy_ref<> r = convert_field (type, 0);
if (r == NULL)
return NULL;
-
- rl = Py_BuildValue ("[O]", r);
- if (rl == NULL)
- {
- Py_DECREF (r);
- }
- return rl;
+ return Py_BuildValue ("[O]", r.get ());
}
/* Return a sequence of all field names. Each field is a gdb.Field object. */
return typy_fields_items (self, iter_keys);
}
-/* Return a sequence of all (name, fields) pairs. Each field is a
+/* Return a sequence of all (name, fields) pairs. Each field is a
gdb.Field object. */
static PyObject *
return typy_fields_items (self, iter_items);
}
+/* Return the type's name, or None. */
+
+static PyObject *
+typy_get_name (PyObject *self, void *closure)
+{
+ struct type *type = ((type_object *) self)->type;
+
+ if (TYPE_NAME (type) == NULL)
+ Py_RETURN_NONE;
+ return PyString_FromString (TYPE_NAME (type));
+}
+
/* Return the type's tag, or None. */
static PyObject *
typy_get_tag (PyObject *self, void *closure)
{
struct type *type = ((type_object *) self)->type;
+ const char *tagname = nullptr;
+
+ if (TYPE_CODE (type) == TYPE_CODE_STRUCT
+ || TYPE_CODE (type) == TYPE_CODE_UNION
+ || TYPE_CODE (type) == TYPE_CODE_ENUM)
+ tagname = TYPE_NAME (type);
- if (!TYPE_TAG_NAME (type))
+ if (tagname == nullptr)
Py_RETURN_NONE;
- return PyString_FromString (TYPE_TAG_NAME (type));
+ return PyString_FromString (tagname);
+}
+
+/* Return the type's objfile, or None. */
+static PyObject *
+typy_get_objfile (PyObject *self, void *closure)
+{
+ struct type *type = ((type_object *) self)->type;
+ struct objfile *objfile = TYPE_OBJFILE (type);
+
+ if (objfile == nullptr)
+ Py_RETURN_NONE;
+ return objfile_to_objfile_object (objfile).release ();
}
/* Return the type, stripped of typedefs. */
typy_strip_typedefs (PyObject *self, PyObject *args)
{
struct type *type = ((type_object *) self)->type;
- volatile struct gdb_exception except;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
type = check_typedef (type);
}
- GDB_PY_HANDLE_EXCEPTION (except);
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
- return type_to_type_object (check_typedef (type));
+ return type_to_type_object (type);
}
/* Strip typedefs and pointers/reference from a type. Then check that
static struct type *
typy_get_composite (struct type *type)
{
- volatile struct gdb_exception except;
for (;;)
{
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
}
- /* Don't use GDB_PY_HANDLE_EXCEPTION here because that returns
- a (NULL) pointer of the wrong type. */
- if (except.reason < 0)
+ catch (const gdb_exception &except)
{
- gdbpy_convert_exception (except);
- return NULL;
+ GDB_PY_HANDLE_EXCEPTION (except);
}
- if (TYPE_CODE (type) != TYPE_CODE_PTR
- && TYPE_CODE (type) != TYPE_CODE_REF)
+ if (TYPE_CODE (type) != TYPE_CODE_PTR && !TYPE_IS_REFERENCE (type))
break;
type = TYPE_TARGET_TYPE (type);
}
/* If this is not a struct, union, or enum type, raise TypeError
exception. */
- if (TYPE_CODE (type) != TYPE_CODE_STRUCT
+ if (TYPE_CODE (type) != TYPE_CODE_STRUCT
&& TYPE_CODE (type) != TYPE_CODE_UNION
- && TYPE_CODE (type) != TYPE_CODE_ENUM)
+ && TYPE_CODE (type) != TYPE_CODE_ENUM
+ && TYPE_CODE (type) != TYPE_CODE_FUNC)
{
PyErr_SetString (PyExc_TypeError,
- "Type is not a structure, union, or enum type.");
+ "Type is not a structure, union, enum, or function type.");
return NULL;
}
-
+
return type;
}
PyObject *n2_obj = NULL;
struct type *array = NULL;
struct type *type = ((type_object *) self)->type;
- volatile struct gdb_exception except;
if (! PyArg_ParseTuple (args, "l|O", &n1, &n2_obj))
return NULL;
n1 = 0;
}
- if (n2 < n1)
+ if (n2 < n1 - 1) /* Note: An empty array has n2 == n1 - 1. */
{
PyErr_SetString (PyExc_ValueError,
_("Array length must not be negative"));
return NULL;
}
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
array = lookup_array_range_type (type, n1, n2);
if (is_vector)
make_vector_type (array);
}
- GDB_PY_HANDLE_EXCEPTION (except);
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
return type_to_type_object (array);
}
typy_pointer (PyObject *self, PyObject *args)
{
struct type *type = ((type_object *) self)->type;
- volatile struct gdb_exception except;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
type = lookup_pointer_type (type);
}
- GDB_PY_HANDLE_EXCEPTION (except);
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
return type_to_type_object (type);
}
typy_range (PyObject *self, PyObject *args)
{
struct type *type = ((type_object *) self)->type;
- PyObject *result;
- PyObject *low_bound = NULL, *high_bound = NULL;
/* Initialize these to appease GCC warnings. */
LONGEST low = 0, high = 0;
break;
}
- low_bound = PyLong_FromLong (low);
- if (!low_bound)
- goto failarg;
+ gdbpy_ref<> low_bound (PyLong_FromLong (low));
+ if (low_bound == NULL)
+ return NULL;
- high_bound = PyLong_FromLong (high);
- if (!high_bound)
- goto failarg;
+ gdbpy_ref<> high_bound (PyLong_FromLong (high));
+ if (high_bound == NULL)
+ return NULL;
- result = PyTuple_New (2);
- if (!result)
- goto failarg;
+ gdbpy_ref<> result (PyTuple_New (2));
+ if (result == NULL)
+ return NULL;
- if (PyTuple_SetItem (result, 0, low_bound) != 0)
- {
- Py_DECREF (result);
- goto failarg;
- }
- if (PyTuple_SetItem (result, 1, high_bound) != 0)
- {
- Py_DECREF (high_bound);
- Py_DECREF (result);
- return NULL;
- }
- return result;
-
- failarg:
- Py_XDECREF (high_bound);
- Py_XDECREF (low_bound);
- return NULL;
+ if (PyTuple_SetItem (result.get (), 0, low_bound.release ()) != 0
+ || PyTuple_SetItem (result.get (), 1, high_bound.release ()) != 0)
+ return NULL;
+ return result.release ();
}
/* Return a Type object which represents a reference to SELF. */
typy_reference (PyObject *self, PyObject *args)
{
struct type *type = ((type_object *) self)->type;
- volatile struct gdb_exception except;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
- type = lookup_reference_type (type);
+ type = lookup_lvalue_reference_type (type);
+ }
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
}
- GDB_PY_HANDLE_EXCEPTION (except);
return type_to_type_object (type);
}
if (!TYPE_TARGET_TYPE (type))
{
- PyErr_SetString (PyExc_RuntimeError,
+ PyErr_SetString (PyExc_RuntimeError,
_("Type does not have a target."));
return NULL;
}
typy_const (PyObject *self, PyObject *args)
{
struct type *type = ((type_object *) self)->type;
- volatile struct gdb_exception except;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
type = make_cv_type (1, 0, type, NULL);
}
- GDB_PY_HANDLE_EXCEPTION (except);
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
return type_to_type_object (type);
}
typy_volatile (PyObject *self, PyObject *args)
{
struct type *type = ((type_object *) self)->type;
- volatile struct gdb_exception except;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
type = make_cv_type (0, 1, type, NULL);
}
- GDB_PY_HANDLE_EXCEPTION (except);
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
return type_to_type_object (type);
}
typy_unqualified (PyObject *self, PyObject *args)
{
struct type *type = ((type_object *) self)->type;
- volatile struct gdb_exception except;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
type = make_cv_type (0, 0, type, NULL);
}
- GDB_PY_HANDLE_EXCEPTION (except);
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
return type_to_type_object (type);
}
typy_get_sizeof (PyObject *self, void *closure)
{
struct type *type = ((type_object *) self)->type;
- volatile struct gdb_exception except;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
check_typedef (type);
}
+ catch (const gdb_exception &except)
+ {
+ }
+
/* Ignore exceptions. */
return gdb_py_long_from_longest (TYPE_LENGTH (type));
}
+/* Return the alignment of the type represented by SELF, in bytes. */
+static PyObject *
+typy_get_alignof (PyObject *self, void *closure)
+{
+ struct type *type = ((type_object *) self)->type;
+
+ ULONGEST align = 0;
+ try
+ {
+ align = type_align (type);
+ }
+ catch (const gdb_exception &except)
+ {
+ align = 0;
+ }
+
+ /* Ignore exceptions. */
+
+ return gdb_py_object_from_ulongest (align).release ();
+}
+
static struct type *
typy_lookup_typename (const char *type_name, const struct block *block)
{
struct type *type = NULL;
- volatile struct gdb_exception except;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
- if (!strncmp (type_name, "struct ", 7))
+ if (startswith (type_name, "struct "))
type = lookup_struct (type_name + 7, NULL);
- else if (!strncmp (type_name, "union ", 6))
+ else if (startswith (type_name, "union "))
type = lookup_union (type_name + 6, NULL);
- else if (!strncmp (type_name, "enum ", 5))
+ else if (startswith (type_name, "enum "))
type = lookup_enum (type_name + 5, NULL);
else
- type = lookup_typename (python_language, python_gdbarch,
+ type = lookup_typename (python_language,
type_name, block, 0);
}
- if (except.reason < 0)
+ catch (const gdb_exception &except)
{
- gdbpy_convert_exception (except);
- return NULL;
+ GDB_PY_HANDLE_EXCEPTION (except);
}
return type;
const struct block *block)
{
struct type *type, *rtype = NULL;
- char *type_name = NULL;
enum demangle_component_type demangled_type;
- volatile struct gdb_exception except;
/* Save the type: typy_lookup_type() may (indirectly) overwrite
memory pointed by demangled. */
if (demangled_type == DEMANGLE_COMPONENT_POINTER
|| demangled_type == DEMANGLE_COMPONENT_REFERENCE
+ || demangled_type == DEMANGLE_COMPONENT_RVALUE_REFERENCE
|| demangled_type == DEMANGLE_COMPONENT_CONST
|| demangled_type == DEMANGLE_COMPONENT_VOLATILE)
{
if (! type)
return NULL;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
/* If the demangled_type matches with one of the types
below, run the corresponding function and save the type
switch (demangled_type)
{
case DEMANGLE_COMPONENT_REFERENCE:
- rtype = lookup_reference_type (type);
+ rtype = lookup_lvalue_reference_type (type);
+ break;
+ case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
+ rtype = lookup_rvalue_reference_type (type);
break;
case DEMANGLE_COMPONENT_POINTER:
rtype = lookup_pointer_type (type);
break;
}
}
- if (except.reason < 0)
+ catch (const gdb_exception &except)
{
- gdbpy_convert_exception (except);
- return NULL;
+ GDB_PY_HANDLE_EXCEPTION (except);
}
}
-
+
/* If we have a type from the switch statement above, just return
that. */
if (rtype)
return rtype;
-
- /* We don't have a type, so lookup the type. */
- type_name = cp_comp_to_string (demangled, 10);
- type = typy_lookup_typename (type_name, block);
- xfree (type_name);
- return type;
+ /* We don't have a type, so lookup the type. */
+ gdb::unique_xmalloc_ptr<char> type_name = cp_comp_to_string (demangled, 10);
+ return typy_lookup_typename (type_name.get (), block);
}
/* This is a helper function for typy_template_argument that is used
{
int i;
struct demangle_component *demangled;
- struct demangle_parse_info *info = NULL;
- const char *err;
+ std::unique_ptr<demangle_parse_info> info;
+ std::string err;
struct type *argtype;
- struct cleanup *cleanup;
- volatile struct gdb_exception except;
if (TYPE_NAME (type) == NULL)
{
return NULL;
}
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
/* Note -- this is not thread-safe. */
info = cp_demangled_name_to_comp (TYPE_NAME (type), &err);
}
- GDB_PY_HANDLE_EXCEPTION (except);
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
if (! info)
{
- PyErr_SetString (PyExc_RuntimeError, err);
+ PyErr_SetString (PyExc_RuntimeError, err.c_str ());
return NULL;
}
demangled = info->tree;
- cleanup = make_cleanup_cp_demangled_name_parse_free (info);
/* Strip off component names. */
while (demangled->type == DEMANGLE_COMPONENT_QUAL_NAME
if (demangled->type != DEMANGLE_COMPONENT_TEMPLATE)
{
- do_cleanups (cleanup);
PyErr_SetString (PyExc_RuntimeError, _("Type is not a template."));
return NULL;
}
if (! demangled)
{
- do_cleanups (cleanup);
PyErr_Format (PyExc_RuntimeError, _("No argument %d in template."),
argno);
return NULL;
}
argtype = typy_lookup_type (demangled->u.s_binary.left, block);
- do_cleanups (cleanup);
if (! argtype)
return NULL;
PyObject *block_obj = NULL;
struct symbol *sym;
struct value *val = NULL;
- volatile struct gdb_exception except;
if (! PyArg_ParseTuple (args, "i|O", &argno, &block_obj))
return NULL;
+ if (argno < 0)
+ {
+ PyErr_SetString (PyExc_RuntimeError,
+ _("Template argument number must be non-negative"));
+ return NULL;
+ }
+
if (block_obj)
{
block = block_object_to_block (block_obj);
}
}
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
type = check_typedef (type);
- if (TYPE_CODE (type) == TYPE_CODE_REF)
+ if (TYPE_IS_REFERENCE (type))
type = check_typedef (TYPE_TARGET_TYPE (type));
}
- GDB_PY_HANDLE_EXCEPTION (except);
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
/* We might not have DW_TAG_template_*, so try to parse the type's
name. This is inefficient if we do not have a template type --
return NULL;
}
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
val = value_of_variable (sym, block);
}
- GDB_PY_HANDLE_EXCEPTION (except);
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
return value_to_value_object (val);
}
static PyObject *
typy_str (PyObject *self)
{
- volatile struct gdb_exception except;
- char *thetype = NULL;
- long length = 0;
- PyObject *result;
+ string_file thetype;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
- struct cleanup *old_chain;
- struct ui_file *stb;
-
- stb = mem_fileopen ();
- old_chain = make_cleanup_ui_file_delete (stb);
-
- LA_PRINT_TYPE (type_object_to_type (self), "", stb, -1, 0,
+ LA_PRINT_TYPE (type_object_to_type (self), "", &thetype, -1, 0,
&type_print_raw_options);
-
- thetype = ui_file_xstrdup (stb, &length);
- do_cleanups (old_chain);
}
- if (except.reason < 0)
+ catch (const gdb_exception &except)
{
- xfree (thetype);
GDB_PY_HANDLE_EXCEPTION (except);
}
- result = PyUnicode_Decode (thetype, length, host_charset (), NULL);
- xfree (thetype);
-
- return result;
-}
-
-/* An entry in the type-equality bcache. */
-
-typedef struct type_equality_entry
-{
- struct type *type1, *type2;
-} type_equality_entry_d;
-
-DEF_VEC_O (type_equality_entry_d);
-
-/* A helper function to compare two strings. Returns 1 if they are
- the same, 0 otherwise. Handles NULLs properly. */
-
-static int
-compare_maybe_null_strings (const char *s, const char *t)
-{
- if (s == NULL && t != NULL)
- return 0;
- else if (s != NULL && t == NULL)
- return 0;
- else if (s == NULL && t== NULL)
- return 1;
- return strcmp (s, t) == 0;
-}
-
-/* A helper function for typy_richcompare that checks two types for
- "deep" equality. Returns Py_EQ if the types are considered the
- same, Py_NE otherwise. */
-
-static int
-check_types_equal (struct type *type1, struct type *type2,
- VEC (type_equality_entry_d) **worklist)
-{
- CHECK_TYPEDEF (type1);
- CHECK_TYPEDEF (type2);
-
- if (type1 == type2)
- return Py_EQ;
-
- if (TYPE_CODE (type1) != TYPE_CODE (type2)
- || TYPE_LENGTH (type1) != TYPE_LENGTH (type2)
- || TYPE_UNSIGNED (type1) != TYPE_UNSIGNED (type2)
- || TYPE_NOSIGN (type1) != TYPE_NOSIGN (type2)
- || TYPE_VARARGS (type1) != TYPE_VARARGS (type2)
- || TYPE_VECTOR (type1) != TYPE_VECTOR (type2)
- || TYPE_NOTTEXT (type1) != TYPE_NOTTEXT (type2)
- || TYPE_INSTANCE_FLAGS (type1) != TYPE_INSTANCE_FLAGS (type2)
- || TYPE_NFIELDS (type1) != TYPE_NFIELDS (type2))
- return Py_NE;
-
- if (!compare_maybe_null_strings (TYPE_TAG_NAME (type1),
- TYPE_TAG_NAME (type2)))
- return Py_NE;
- if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2)))
- return Py_NE;
-
- if (TYPE_CODE (type1) == TYPE_CODE_RANGE)
- {
- if (memcmp (TYPE_RANGE_DATA (type1), TYPE_RANGE_DATA (type2),
- sizeof (*TYPE_RANGE_DATA (type1))) != 0)
- return Py_NE;
- }
- else
- {
- int i;
-
- for (i = 0; i < TYPE_NFIELDS (type1); ++i)
- {
- const struct field *field1 = &TYPE_FIELD (type1, i);
- const struct field *field2 = &TYPE_FIELD (type2, i);
- struct type_equality_entry entry;
-
- if (FIELD_ARTIFICIAL (*field1) != FIELD_ARTIFICIAL (*field2)
- || FIELD_BITSIZE (*field1) != FIELD_BITSIZE (*field2)
- || FIELD_LOC_KIND (*field1) != FIELD_LOC_KIND (*field2))
- return Py_NE;
- if (!compare_maybe_null_strings (FIELD_NAME (*field1),
- FIELD_NAME (*field2)))
- return Py_NE;
- switch (FIELD_LOC_KIND (*field1))
- {
- case FIELD_LOC_KIND_BITPOS:
- if (FIELD_BITPOS (*field1) != FIELD_BITPOS (*field2))
- return Py_NE;
- break;
- case FIELD_LOC_KIND_ENUMVAL:
- if (FIELD_ENUMVAL (*field1) != FIELD_ENUMVAL (*field2))
- return Py_NE;
- break;
- case FIELD_LOC_KIND_PHYSADDR:
- if (FIELD_STATIC_PHYSADDR (*field1)
- != FIELD_STATIC_PHYSADDR (*field2))
- return Py_NE;
- break;
- case FIELD_LOC_KIND_PHYSNAME:
- if (!compare_maybe_null_strings (FIELD_STATIC_PHYSNAME (*field1),
- FIELD_STATIC_PHYSNAME (*field2)))
- return Py_NE;
- break;
- case FIELD_LOC_KIND_DWARF_BLOCK:
- {
- struct dwarf2_locexpr_baton *block1, *block2;
-
- block1 = FIELD_DWARF_BLOCK (*field1);
- block2 = FIELD_DWARF_BLOCK (*field2);
- if (block1->per_cu != block2->per_cu
- || block1->size != block2->size
- || memcmp (block1->data, block2->data, block1->size) != 0)
- return Py_NE;
- }
- break;
- default:
- internal_error (__FILE__, __LINE__, _("Unsupported field kind "
- "%d by check_types_equal"),
- FIELD_LOC_KIND (*field1));
- }
-
- entry.type1 = FIELD_TYPE (*field1);
- entry.type2 = FIELD_TYPE (*field2);
- VEC_safe_push (type_equality_entry_d, *worklist, &entry);
- }
- }
-
- if (TYPE_TARGET_TYPE (type1) != NULL)
- {
- struct type_equality_entry entry;
-
- if (TYPE_TARGET_TYPE (type2) == NULL)
- return Py_NE;
-
- entry.type1 = TYPE_TARGET_TYPE (type1);
- entry.type2 = TYPE_TARGET_TYPE (type2);
- VEC_safe_push (type_equality_entry_d, *worklist, &entry);
- }
- else if (TYPE_TARGET_TYPE (type2) != NULL)
- return Py_NE;
-
- return Py_EQ;
-}
-
-/* Check types on a worklist for equality. Returns Py_NE if any pair
- is not equal, Py_EQ if they are all considered equal. */
-
-static int
-check_types_worklist (VEC (type_equality_entry_d) **worklist,
- struct bcache *cache)
-{
- while (!VEC_empty (type_equality_entry_d, *worklist))
- {
- struct type_equality_entry entry;
- int added;
-
- entry = *VEC_last (type_equality_entry_d, *worklist);
- VEC_pop (type_equality_entry_d, *worklist);
-
- /* If the type pair has already been visited, we know it is
- ok. */
- bcache_full (&entry, sizeof (entry), cache, &added);
- if (!added)
- continue;
-
- if (check_types_equal (entry.type1, entry.type2, worklist) == Py_NE)
- return Py_NE;
- }
-
- return Py_EQ;
+ return PyUnicode_Decode (thetype.c_str (), thetype.size (),
+ host_charset (), NULL);
}
/* Implement the richcompare method. */
static PyObject *
typy_richcompare (PyObject *self, PyObject *other, int op)
{
- int result = Py_NE;
+ bool result = false;
struct type *type1 = type_object_to_type (self);
struct type *type2 = type_object_to_type (other);
- volatile struct gdb_exception except;
/* We can only compare ourselves to another Type object, and only
for equality or inequality. */
}
if (type1 == type2)
- result = Py_EQ;
+ result = true;
else
{
- struct bcache *cache;
- VEC (type_equality_entry_d) *worklist = NULL;
- struct type_equality_entry entry;
-
- cache = bcache_xmalloc (NULL, NULL);
-
- entry.type1 = type1;
- entry.type2 = type2;
- VEC_safe_push (type_equality_entry_d, worklist, &entry);
-
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
- result = check_types_worklist (&worklist, cache);
+ result = types_deeply_equal (type1, type2);
+ }
+ catch (const gdb_exception &except)
+ {
+ /* If there is a GDB exception, a comparison is not capable
+ (or trusted), so exit. */
+ GDB_PY_HANDLE_EXCEPTION (except);
}
- /* check_types_worklist calls several nested Python helper
- functions, some of which can raise a GDB Exception, so we
- just check and convert here. If there is a GDB exception, a
- comparison is not capable (or trusted), so exit. */
- bcache_xfree (cache);
- VEC_free (type_equality_entry_d, worklist);
- GDB_PY_HANDLE_EXCEPTION (except);
}
- if (op == result)
+ if (op == (result ? Py_EQ : Py_NE))
Py_RETURN_TRUE;
Py_RETURN_FALSE;
}
static void
save_objfile_types (struct objfile *objfile, void *datum)
{
- type_object *obj = datum;
+ type_object *obj = (type_object *) datum;
htab_t copied_types;
- struct cleanup *cleanup;
+
+ if (!gdb_python_initialized)
+ return;
/* This prevents another thread from freeing the objects we're
operating on. */
- cleanup = ensure_python_env (get_objfile_arch (objfile), current_language);
+ gdbpy_enter enter_py (get_objfile_arch (objfile), current_language);
copied_types = create_copied_types_hash (objfile);
}
htab_delete (copied_types);
-
- do_cleanups (cleanup);
}
static void
{
struct objfile *objfile = TYPE_OBJFILE (type);
- obj->next = objfile_data (objfile, typy_objfile_data_key);
+ obj->next = ((struct pyty_type_object *)
+ objfile_data (objfile, typy_objfile_data_key));
if (obj->next)
obj->next->prev = obj;
set_objfile_data (objfile, typy_objfile_data_key, obj);
if (type->next)
type->next->prev = type->prev;
- type->ob_type->tp_free (type);
+ Py_TYPE (type)->tp_free (type);
}
/* Return number of fields ("length" of the field dictionary). */
}
/* Implements boolean evaluation of gdb.Type. Handle this like other
- Python objects that don't have a meaningful truth value -- all
+ Python objects that don't have a meaningful truth value -- all
values are true. */
static int
return 1;
}
+/* Return optimized out value of this type. */
+
+static PyObject *
+typy_optimized_out (PyObject *self, PyObject *args)
+{
+ struct type *type = ((type_object *) self)->type;
+
+ return value_to_value_object (allocate_optimized_out_value (type));
+}
+
/* Return a gdb.Field object for the field named by the argument. */
static PyObject *
typy_getitem (PyObject *self, PyObject *key)
{
struct type *type = ((type_object *) self)->type;
- char *field;
int i;
- field = python_string_to_host_string (key);
+ gdb::unique_xmalloc_ptr<char> field = python_string_to_host_string (key);
if (field == NULL)
return NULL;
- /* We want just fields of this type, not of base types, so instead of
+ /* We want just fields of this type, not of base types, so instead of
using lookup_struct_elt_type, portions of that function are
copied here. */
type = typy_get_composite (type);
if (type == NULL)
return NULL;
-
+
for (i = 0; i < TYPE_NFIELDS (type); i++)
{
const char *t_field_name = TYPE_FIELD_NAME (type, i);
- if (t_field_name && (strcmp_iw (t_field_name, field) == 0))
- {
- return convert_field (type, i);
- }
+ if (t_field_name && (strcmp_iw (t_field_name, field.get ()) == 0))
+ return convert_field (type, i).release ();
}
PyErr_SetObject (PyExc_KeyError, key);
return NULL;
}
-/* Implement the "get" method on the type object. This is the
+/* Implement the "get" method on the type object. This is the
same as getitem if the key is present, but returns the supplied
default value or None if the key is not found. */
typy_get (PyObject *self, PyObject *args)
{
PyObject *key, *defval = Py_None, *result;
-
+
if (!PyArg_UnpackTuple (args, "get", 1, 2, &key, &defval))
return NULL;
-
+
result = typy_getitem (self, key);
if (result != NULL)
return result;
-
+
/* typy_getitem returned error status. If the exception is
KeyError, clear the exception status and return the defval
instead. Otherwise return the exception unchanged. */
if (!PyErr_ExceptionMatches (PyExc_KeyError))
return NULL;
-
+
PyErr_Clear ();
Py_INCREF (defval);
return defval;
if (!PyArg_ParseTuple (args, "s", &field))
return NULL;
- /* We want just fields of this type, not of base types, so instead of
+ /* We want just fields of this type, not of base types, so instead of
using lookup_struct_elt_type, portions of that function are
copied here. */
/* Check that "self" is a structure or union type. */
if (typy_get_composite (((type_object *) self)->type) == NULL)
return NULL;
-
+
typy_iter_obj = PyObject_New (typy_iterator_object,
&type_iterator_object_type);
if (typy_iter_obj == NULL)
{
typy_iterator_object *iter_obj = (typy_iterator_object *) self;
struct type *type = iter_obj->source->type;
- PyObject *result;
-
+
if (iter_obj->field < TYPE_NFIELDS (type))
{
- result = make_fielditem (type, iter_obj->field, iter_obj->kind);
+ gdbpy_ref<> result = make_fielditem (type, iter_obj->field,
+ iter_obj->kind);
if (result != NULL)
iter_obj->field++;
- return result;
+ return result.release ();
}
return NULL;
typy_iterator_object *iter_obj = (typy_iterator_object *) obj;
Py_DECREF (iter_obj->source);
+ Py_TYPE (obj)->tp_free (obj);
}
/* Create a new Type referring to TYPE. */
{
type_object *type_obj;
+ try
+ {
+ /* Try not to let stub types leak out to Python. */
+ if (TYPE_STUB (type))
+ type = check_typedef (type);
+ }
+ catch (...)
+ {
+ /* Just ignore failures in check_typedef. */
+ }
+
type_obj = PyObject_New (type_object, &type_object_type);
if (type_obj)
set_type (type_obj, type);
PyObject *
gdbpy_lookup_type (PyObject *self, PyObject *args, PyObject *kw)
{
- static char *keywords[] = { "name", "block", NULL };
+ static const char *keywords[] = { "name", "block", NULL };
const char *type_name = NULL;
struct type *type = NULL;
PyObject *block_obj = NULL;
const struct block *block = NULL;
- if (! PyArg_ParseTupleAndKeywords (args, kw, "s|O", keywords,
- &type_name, &block_obj))
+ if (!gdb_PyArg_ParseTupleAndKeywords (args, kw, "s|O", keywords,
+ &type_name, &block_obj))
return NULL;
if (block_obj)
if (! type)
return NULL;
- return (PyObject *) type_to_type_object (type);
+ return type_to_type_object (type);
}
-void
+int
gdbpy_initialize_types (void)
{
int i;
= register_objfile_data_with_cleanup (save_objfile_types, NULL);
if (PyType_Ready (&type_object_type) < 0)
- return;
+ return -1;
if (PyType_Ready (&field_object_type) < 0)
- return;
+ return -1;
if (PyType_Ready (&type_iterator_object_type) < 0)
- return;
+ return -1;
for (i = 0; pyty_codes[i].name; ++i)
{
- if (PyModule_AddIntConstant (gdb_module,
- /* Cast needed for Python 2.4. */
- (char *) pyty_codes[i].name,
+ if (PyModule_AddIntConstant (gdb_module, pyty_codes[i].name,
pyty_codes[i].code) < 0)
- return;
+ return -1;
}
- Py_INCREF (&type_object_type);
- PyModule_AddObject (gdb_module, "Type", (PyObject *) &type_object_type);
+ if (gdb_pymodule_addobject (gdb_module, "Type",
+ (PyObject *) &type_object_type) < 0)
+ return -1;
- Py_INCREF (&type_iterator_object_type);
- PyModule_AddObject (gdb_module, "TypeIterator",
- (PyObject *) &type_iterator_object_type);
+ if (gdb_pymodule_addobject (gdb_module, "TypeIterator",
+ (PyObject *) &type_iterator_object_type) < 0)
+ return -1;
- Py_INCREF (&field_object_type);
- PyModule_AddObject (gdb_module, "Field", (PyObject *) &field_object_type);
+ return gdb_pymodule_addobject (gdb_module, "Field",
+ (PyObject *) &field_object_type);
}
\f
-static PyGetSetDef type_object_getset[] =
+static gdb_PyGetSetDef type_object_getset[] =
{
+ { "alignof", typy_get_alignof, NULL,
+ "The alignment of this type, in bytes.", NULL },
{ "code", typy_get_code, NULL,
"The code for this type.", NULL },
+ { "name", typy_get_name, NULL,
+ "The name for this type, or None.", NULL },
{ "sizeof", typy_get_sizeof, NULL,
"The size of this type, in bytes.", NULL },
{ "tag", typy_get_tag, NULL,
"The tag name for this type, or None.", NULL },
+ { "objfile", typy_get_objfile, NULL,
+ "The objfile this type was defined in, or None.", NULL },
{ NULL }
};
{ "const", typy_const, METH_NOARGS,
"const () -> Type\n\
Return a const variant of this type." },
+ { "optimized_out", typy_optimized_out, METH_NOARGS,
+ "optimized_out() -> Value\n\
+Return optimized out value of this type." },
{ "fields", typy_fields, METH_NOARGS,
"fields () -> list\n\
Return a list holding all the fields of this type.\n\
NULL, /* nb_add */
NULL, /* nb_subtract */
NULL, /* nb_multiply */
+#ifndef IS_PY3K
NULL, /* nb_divide */
+#endif
NULL, /* nb_remainder */
NULL, /* nb_divmod */
NULL, /* nb_power */
NULL, /* nb_and */
NULL, /* nb_xor */
NULL, /* nb_or */
+#ifdef IS_PY3K
+ NULL, /* nb_int */
+ NULL, /* reserved */
+#else
NULL, /* nb_coerce */
NULL, /* nb_int */
NULL, /* nb_long */
+#endif
NULL, /* nb_float */
+#ifndef IS_PY3K
NULL, /* nb_oct */
NULL /* nb_hex */
+#endif
};
static PyMappingMethods typy_mapping = {
NULL /* no "set" method */
};
-static PyTypeObject type_object_type =
+PyTypeObject type_object_type =
{
- PyObject_HEAD_INIT (NULL)
- 0, /*ob_size*/
+ PyVarObject_HEAD_INIT (NULL, 0)
"gdb.Type", /*tp_name*/
sizeof (type_object), /*tp_basicsize*/
0, /*tp_itemsize*/
0, /* tp_new */
};
-static PyGetSetDef field_object_getset[] =
+static gdb_PyGetSetDef field_object_getset[] =
{
{ "__dict__", gdb_py_generic_dict, NULL,
"The __dict__ for this field.", &field_object_type },
{ NULL }
};
-static PyTypeObject field_object_type =
+PyTypeObject field_object_type =
{
- PyObject_HEAD_INIT (NULL)
- 0, /*ob_size*/
+ PyVarObject_HEAD_INIT (NULL, 0)
"gdb.Field", /*tp_name*/
sizeof (field_object), /*tp_basicsize*/
0, /*tp_itemsize*/
0, /* tp_new */
};
-static PyTypeObject type_iterator_object_type = {
- PyObject_HEAD_INIT (NULL)
- 0, /*ob_size*/
+PyTypeObject type_iterator_object_type = {
+ PyVarObject_HEAD_INIT (NULL, 0)
"gdb.TypeIterator", /*tp_name*/
sizeof (typy_iterator_object), /*tp_basicsize*/
0, /*tp_itemsize*/
projects / thirdparty / binutils-gdb.git / blobdiff