/* Python interface to types.
- Copyright (C) 2008-2017 Free Software Foundation, Inc.
+ Copyright (C) 2008-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "demangle.h"
#include "objfiles.h"
#include "language.h"
-#include "vec.h"
#include "typeprint.h"
-#include "py-ref.h"
typedef struct pyty_type_object
{
/* 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)
{
gdbpy_ref<> result (field_new ());
if (arg == NULL)
return NULL;
- /* At least python-2.4 had the second parameter non-const. */
- if (PyObject_SetAttrString (result.get (), (char *) attrstring,
- arg.get ()) < 0)
+ if (PyObject_SetAttrString (result.get (), attrstring, arg.get ()) < 0)
return NULL;
}
}
}
if (arg == NULL)
- {
- arg.reset (Py_None);
- Py_INCREF (arg.get ());
- }
+ arg = gdbpy_ref<>::new_reference (Py_None);
+
if (PyObject_SetAttrString (result.get (), "name", arg.get ()) < 0)
return NULL;
- arg.reset (TYPE_FIELD_ARTIFICIAL (type, field) ? Py_True : Py_False);
- Py_INCREF (arg.get ());
+ 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_STRUCT)
- arg.reset (field < TYPE_N_BASECLASSES (type) ? Py_True : Py_False);
+ arg = gdbpy_ref<>::new_reference (field < TYPE_N_BASECLASSES (type)
+ ? Py_True : Py_False);
else
- arg.reset (Py_False);
- Py_INCREF (arg.get ());
+ arg = gdbpy_ref<>::new_reference (Py_False);
if (PyObject_SetAttrString (result.get (), "is_base_class", arg.get ()) < 0)
return NULL;
/* A field can have a NULL type in some situations. */
if (TYPE_FIELD_TYPE (type, field) == NULL)
- {
- arg.reset (Py_None);
- Py_INCREF (arg.get ());
- }
+ arg = gdbpy_ref<>::new_reference (Py_None);
else
arg.reset (type_to_type_object (TYPE_FIELD_TYPE (type, field)));
if (arg == NULL)
if (PyObject_SetAttrString (result.get (), "type", arg.get ()) < 0)
return NULL;
- return result.release ();
+ return result;
}
/* 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)
{
switch (kind)
gdbpy_ref<> key (field_name (type, i));
if (key == NULL)
return NULL;
- gdbpy_ref<> value (convert_field (type, i));
+ gdbpy_ref<> value = convert_field (type, i);
if (value == NULL)
return NULL;
gdbpy_ref<> item (PyTuple_New (2));
return NULL;
PyTuple_SET_ITEM (item.get (), 0, key.release ());
PyTuple_SET_ITEM (item.get (), 1, value.release ());
- return item.release ();
+ return item;
}
case iter_keys:
return field_name (type, i);
typy_fields_items (PyObject *self, enum gdbpy_iter_kind kind)
{
PyObject *py_type = self;
- PyObject *result = NULL, *iter = NULL;
struct type *type = ((type_object *) py_type)->type;
struct type *checked_type = type;
- TRY
+ try
{
checked_type = check_typedef (checked_type);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
- if (checked_type != type)
- py_type = type_to_type_object (checked_type);
- iter = typy_make_iter (py_type, kind);
+ gdbpy_ref<> type_holder;
if (checked_type != type)
{
- /* Need to wrap this in braces because Py_DECREF isn't wrapped
- in a do{}while(0). */
- Py_DECREF (py_type);
- }
- if (iter != NULL)
- {
- 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. */
/* 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. */
- gdbpy_ref<> r (convert_field (type, 0));
+ gdbpy_ref<> r = convert_field (type, 0);
if (r == NULL)
return NULL;
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 (tagname == nullptr)
+ Py_RETURN_NONE;
+ 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 (!TYPE_TAG_NAME (type))
+ if (objfile == nullptr)
Py_RETURN_NONE;
- return PyString_FromString (TYPE_TAG_NAME (type));
+ return objfile_to_objfile_object (objfile).release ();
}
/* Return the type, stripped of typedefs. */
{
struct type *type = ((type_object *) self)->type;
- TRY
+ try
{
type = check_typedef (type);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
return type_to_type_object (type);
}
for (;;)
{
- TRY
+ try
{
type = check_typedef (type);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
if (TYPE_CODE (type) != TYPE_CODE_PTR && !TYPE_IS_REFERENCE (type))
break;
return NULL;
}
- TRY
+ try
{
array = lookup_array_range_type (type, n1, n2);
if (is_vector)
make_vector_type (array);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
return type_to_type_object (array);
}
{
struct type *type = ((type_object *) self)->type;
- TRY
+ try
{
type = lookup_pointer_type (type);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
return type_to_type_object (type);
}
{
struct type *type = ((type_object *) self)->type;
- TRY
+ try
{
type = lookup_lvalue_reference_type (type);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
return type_to_type_object (type);
}
{
struct type *type = ((type_object *) self)->type;
- TRY
+ try
{
type = make_cv_type (1, 0, type, NULL);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
return type_to_type_object (type);
}
{
struct type *type = ((type_object *) self)->type;
- TRY
+ try
{
type = make_cv_type (0, 1, type, NULL);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
return type_to_type_object (type);
}
{
struct type *type = ((type_object *) self)->type;
- TRY
+ try
{
type = make_cv_type (0, 0, type, NULL);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
return type_to_type_object (type);
}
{
struct type *type = ((type_object *) self)->type;
- TRY
+ try
{
check_typedef (type);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
}
- END_CATCH
/* 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;
- TRY
+ try
{
if (startswith (type_name, "struct "))
type = lookup_struct (type_name + 7, NULL);
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);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
return type;
}
const struct block *block)
{
struct type *type, *rtype = NULL;
- char *type_name = NULL;
enum demangle_component_type demangled_type;
/* Save the type: typy_lookup_type() may (indirectly) overwrite
if (! type)
return NULL;
- TRY
+ try
{
/* If the demangled_type matches with one of the types
below, run the corresponding function and save the type
break;
}
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
}
/* If we have a type from the switch statement above, just return
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;
+ 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;
std::unique_ptr<demangle_parse_info> info;
- const char *err;
+ std::string err;
struct type *argtype;
if (TYPE_NAME (type) == NULL)
return NULL;
}
- TRY
+ try
{
/* Note -- this is not thread-safe. */
info = cp_demangled_name_to_comp (TYPE_NAME (type), &err);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
if (! info)
{
- PyErr_SetString (PyExc_RuntimeError, err);
+ PyErr_SetString (PyExc_RuntimeError, err.c_str ());
return NULL;
}
demangled = info->tree;
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
+ try
{
type = check_typedef (type);
if (TYPE_IS_REFERENCE (type))
type = check_typedef (TYPE_TARGET_TYPE (type));
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
/* 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
+ try
{
val = value_of_variable (sym, block);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
return value_to_value_object (val);
}
typy_str (PyObject *self)
{
string_file thetype;
- PyObject *result;
- TRY
+ try
{
LA_PRINT_TYPE (type_object_to_type (self), "", &thetype, -1, 0,
&type_print_raw_options);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
return PyUnicode_Decode (thetype.c_str (), thetype.size (),
host_charset (), NULL);
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);
}
if (type1 == type2)
- result = Py_EQ;
+ result = true;
else
{
- TRY
+ try
{
result = types_deeply_equal (type1, type2);
}
- CATCH (except, RETURN_MASK_ALL)
+ 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);
}
- END_CATCH
}
if (op == (result ? Py_EQ : Py_NE))
const char *t_field_name = TYPE_FIELD_NAME (type, i);
if (t_field_name && (strcmp_iw (t_field_name, field.get ()) == 0))
- {
- return convert_field (type, i);
- }
+ return convert_field (type, i).release ();
}
PyErr_SetObject (PyExc_KeyError, key);
return 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);
}
int
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 -1;
}
\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 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 }
};
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 },
projects / thirdparty / binutils-gdb.git / blobdiff