+/* Return the innermost lexical block containing the specified pc value,
+ or 0 if there is none. */
+static PyObject *
+pspy_block_for_pc (PyObject *o, PyObject *args)
+{
+ pspace_object *self = (pspace_object *) o;
+ gdb_py_ulongest pc;
+ const struct block *block = NULL;
+ struct compunit_symtab *cust = NULL;
+
+ PSPY_REQUIRE_VALID (self);
+
+ if (!PyArg_ParseTuple (args, GDB_PY_LLU_ARG, &pc))
+ return NULL;
+
+ TRY
+ {
+ scoped_restore_current_program_space saver;
+
+ set_current_program_space (self->pspace);
+ cust = find_pc_compunit_symtab (pc);
+
+ if (cust != NULL && COMPUNIT_OBJFILE (cust) != NULL)
+ block = block_for_pc (pc);
+ }
+ CATCH (except, RETURN_MASK_ALL)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
+ END_CATCH
+
+ if (cust == NULL || COMPUNIT_OBJFILE (cust) == NULL)
+ {
+ PyErr_SetString (PyExc_RuntimeError,
+ _("Cannot locate object file for block."));
+ return NULL;
+ }
+
+ if (block)
+ return block_to_block_object (block, COMPUNIT_OBJFILE (cust));
+
+ Py_RETURN_NONE;
+}
+
+/* Implementation of the find_pc_line function.
+ Returns the gdb.Symtab_and_line object corresponding to a PC value. */
+
+static PyObject *
+pspy_find_pc_line (PyObject *o, PyObject *args)
+{
+ gdb_py_ulongest pc_llu;
+ PyObject *result = NULL; /* init for gcc -Wall */
+ pspace_object *self = (pspace_object *) o;
+
+ PSPY_REQUIRE_VALID (self);
+
+ if (!PyArg_ParseTuple (args, GDB_PY_LLU_ARG, &pc_llu))
+ return NULL;
+
+ TRY
+ {
+ struct symtab_and_line sal;
+ CORE_ADDR pc;
+ scoped_restore_current_program_space saver;
+
+ set_current_program_space (self->pspace);
+
+ pc = (CORE_ADDR) pc_llu;
+ sal = find_pc_line (pc, 0);
+ result = symtab_and_line_to_sal_object (sal);
+ }
+ CATCH (except, RETURN_MASK_ALL)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
+ END_CATCH
+
+ return result;
+}
+
+/* Implementation of is_valid (self) -> Boolean.
+ Returns True if this program space still exists in GDB. */
+
+static PyObject *
+pspy_is_valid (PyObject *o, PyObject *args)
+{
+ pspace_object *self = (pspace_object *) o;
+
+ if (self->pspace == NULL)
+ Py_RETURN_FALSE;
+
+ Py_RETURN_TRUE;
+}
+
+\f
+