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[patch][python] Fix some unguarded GDB calls.
- From: Phil Muldoon <pmuldoon at redhat dot com>
- To: gdb-patches at sourceware dot org
- Date: Wed, 20 Mar 2013 13:33:29 +0000
- Subject: [patch][python] Fix some unguarded GDB calls.
This patches adds some GDB exception handling and Python exception
conversions for some existing code.
Cheers,
Phil
2013-03-20 Phil Muldoon <pmuldoon@redhat.com>
* python/py-utils.c (get_addr_from_python): Use exception handler
for value_as_address.
* python/py-cmd.c (gdbpy_parse_command_name): Use exception
handler for lookup_cmd_1..
* python/python.c (execute_gdb_command): Move bpstat_do_actions
into exception handler.
--
diff --git a/gdb/python/py-cmd.c b/gdb/python/py-cmd.c
index 161b4bc..73897d0 100644
--- a/gdb/python/py-cmd.c
+++ b/gdb/python/py-cmd.c
@@ -323,6 +323,7 @@ gdbpy_parse_command_name (const char *name,
char *prefix_text;
const char *prefix_text2;
char *result;
+ volatile struct gdb_exception except;
/* Skip trailing whitespace. */
for (i = len - 1; i >= 0 && (name[i] == ' ' || name[i] == '\t'); --i)
@@ -358,7 +359,17 @@ gdbpy_parse_command_name (const char *name,
prefix_text[i + 1] = '\0';
prefix_text2 = prefix_text;
- elt = lookup_cmd_1 (&prefix_text2, *start_list, NULL, 1);
+
+ TRY_CATCH (except, RETURN_MASK_ALL)
+ {
+ elt = lookup_cmd_1 (&prefix_text2, *start_list, NULL, 1);
+ }
+ if (except.reason < 0)
+ {
+ gdbpy_convert_exception (except);
+ return NULL;
+ }
+
if (!elt || elt == (struct cmd_list_element *) -1)
{
PyErr_Format (PyExc_RuntimeError, _("Could not find command prefix %s."),
diff --git a/gdb/python/py-utils.c b/gdb/python/py-utils.c
index b280c8c..65a2921 100644
--- a/gdb/python/py-utils.c
+++ b/gdb/python/py-utils.c
@@ -299,7 +299,19 @@ int
get_addr_from_python (PyObject *obj, CORE_ADDR *addr)
{
if (gdbpy_is_value_object (obj))
- *addr = value_as_address (value_object_to_value (obj));
+ {
+ volatile struct gdb_exception except;
+
+ TRY_CATCH (except, RETURN_MASK_ALL)
+ {
+ *addr = value_as_address (value_object_to_value (obj));
+ }
+ if (except.reason < 0)
+ {
+ gdbpy_convert_exception (except);
+ return 0;
+ }
+ }
else
{
PyObject *num = PyNumber_Long (obj);
diff --git a/gdb/python/python.c b/gdb/python/python.c
index 4a7cb28..e44cb00 100644
--- a/gdb/python/python.c
+++ b/gdb/python/python.c
@@ -555,12 +555,12 @@ execute_gdb_command (PyObject *self, PyObject *args, PyObject *kw)
}
do_cleanups (cleanup);
+
+ /* Do any commands attached to breakpoint we stopped at. */
+ bpstat_do_actions ();
}
GDB_PY_HANDLE_EXCEPTION (except);
- /* Do any commands attached to breakpoint we stopped at. */
- bpstat_do_actions ();
-
if (result)
{
PyObject *r = PyString_FromString (result);