From 610f5d739dd22bce352bde59dce3985c73aaefab Mon Sep 17 00:00:00 2001 From: Victor Stinner Date: Fri, 16 Dec 2016 10:00:39 +0100 Subject: [PATCH] python-gdb.py: catch gdb.error on gdb.selected_frame() --- Tools/gdb/libpython.py | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/Tools/gdb/libpython.py b/Tools/gdb/libpython.py index 75f1ccbd442..ed515c00173 100755 --- a/Tools/gdb/libpython.py +++ b/Tools/gdb/libpython.py @@ -1527,7 +1527,11 @@ class Frame(object): def get_selected_python_frame(cls): '''Try to obtain the Frame for the python-related code in the selected frame, or None''' - frame = cls.get_selected_frame() + try: + frame = cls.get_selected_frame() + except gdb.error: + # No frame: Python didn't start yet + return None while frame: if frame.is_python_frame(): @@ -1668,6 +1672,10 @@ PyList() def move_in_stack(move_up): '''Move up or down the stack (for the py-up/py-down command)''' frame = Frame.get_selected_python_frame() + if not frame: + print('Unable to locate python frame') + return + while frame: if move_up: iter_frame = frame.older() @@ -1730,6 +1738,10 @@ class PyBacktraceFull(gdb.Command): def invoke(self, args, from_tty): frame = Frame.get_selected_python_frame() + if not frame: + print('Unable to locate python frame') + return + while frame: if frame.is_python_frame(): frame.print_summary() @@ -1747,8 +1759,12 @@ class PyBacktrace(gdb.Command): def invoke(self, args, from_tty): - sys.stdout.write('Traceback (most recent call first):\n') frame = Frame.get_selected_python_frame() + if not frame: + print('Unable to locate python frame') + return + + sys.stdout.write('Traceback (most recent call first):\n') while frame: if frame.is_python_frame(): frame.print_traceback()