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bpo-45637: Remove broken fallback in gdb helpers to obtain frame variable (GH-29257)

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Pablo Galindo Salgado 2021-11-09 11:19:47 +00:00 • committed by GitHub
parent 6a1cc8bf8a
commit f4c03484da
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2 changed files with 9 additions and 11 deletions
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2
Lib/test/test_gdb.py
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@ -823,6 +823,8 @@ Traceback \(most recent call first\):
foo\(1, 2, 3\) foo\(1, 2, 3\)
''') ''')
@unittest.skipIf(python_is_optimized(),
"Python was compiled with optimizations")
def test_threads(self): def test_threads(self):
'Verify that "py-bt" indicates threads that are waiting for the GIL' 'Verify that "py-bt" indicates threads that are waiting for the GIL'
cmd = ''' cmd = '''

16
Tools/gdb/libpython.py
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@ -1801,17 +1801,13 @@ class Frame(object):
frame = PyFramePtr(frame) frame = PyFramePtr(frame)
if not frame.is_optimized_out(): if not frame.is_optimized_out():
return frame return frame
# gdb is unable to get the "frame" argument of PyEval_EvalFrameEx() cframe = self._gdbframe.read_var('cframe')
# because it was "optimized out". Try to get "frame" from the frame if cframe is None:
# of the caller, _PyEval_Vector(). return None
orig_frame = frame frame = PyFramePtr(cframe["current_frame"].dereference())
caller = self._gdbframe.older() if frame and not frame.is_optimized_out():
if caller:
frame = caller.read_var('frame')
frame = PyFramePtr(frame)
if not frame.is_optimized_out():
return frame return frame
return orig_frame return None
except ValueError: except ValueError:
return None return None