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Expose type alignment on gdb.Type

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This adds an "alignof" attribute to gdb.Type in the Python API.

2018-04-30  Tom Tromey  <tom@tromey.com>

	* NEWS: Mention Type.align.
	* python/py-type.c (typy_get_alignof): New function.
	(type_object_getset): Add "alignof".

2018-04-30  Tom Tromey  <tom@tromey.com>

	* python.texi (Types In Python): Document Type.align.

2018-04-30  Tom Tromey  <tom@tromey.com>

	* gdb.python/py-type.exp: Check align attribute.
	* gdb.python/py-type.c: New "aligncheck" global.
This commit is contained in:
Tom Tromey 2018-04-20 15:43:56 -06:00
parent 007e153034
commit 6d7bb8246b
8 changed files with 56 additions and 0 deletions
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24
gdb/python/py-type.c
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@ -730,6 +730,28 @@ typy_get_sizeof (PyObject *self, void *closure)
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 (except, RETURN_MASK_ALL)
{
align = 0;
}
END_CATCH
/* Ignore exceptions. */
return gdb_py_object_from_ulongest (align);
}
static struct type *
typy_lookup_typename (const char *type_name, const struct block *block)
{
@ -1410,6 +1432,8 @@ gdbpy_initialize_types (void)
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,