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commit 56d4c712a8fa3a3e06a2ae91881ef4d702e5b491
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Author: Tom Tromey <tromey@redhat.com>
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Date: Wed Jan 22 08:52:15 2014 -0700
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avoid python exception in FrameDecorator.py
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This fixes a bug in FrameDecorator.py.
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FrameVars seems to assume that Frame.block can return None if there is
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no block. However, it actually throws an exception.
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I saw this bug while developing a frame filter, but unfortunately I
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don't know how to reproduce it. It seems to me that the SAL tests in
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_is_limited_frame should exclude the bad cases; and in my attempts to
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write a test they do.
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Nevertheless I think the fix is reasonably obvious and ought to go in.
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2014-01-23 Tom Tromey <tromey@redhat.com>
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PR python/16485:
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* python/lib/gdb/FrameDecorator.py: (FrameVars.fetch_frame_args):
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Handle exception from frame.block.
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(FrameVars.fetch_frame_locals): Likewise.
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### a/gdb/ChangeLog
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### b/gdb/ChangeLog
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## -1,5 +1,12 @@
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2014-01-23 Tom Tromey <tromey@redhat.com>
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+ PR python/16485:
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+ * python/lib/gdb/FrameDecorator.py: (FrameVars.fetch_frame_args):
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+ Handle exception from frame.block.
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+ (FrameVars.fetch_frame_locals): Likewise.
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+
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+2014-01-23 Tom Tromey <tromey@redhat.com>
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+
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PR python/16487:
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* python/py-framefilter.c (py_print_frame): Don't call Py_DECREF
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on a NULL pointer. Move "goto error" to correct place.
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--- a/gdb/python/lib/gdb/FrameDecorator.py
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+++ b/gdb/python/lib/gdb/FrameDecorator.py
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@@ -258,7 +258,10 @@ class FrameVars(object):
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are no frame local variables, return an empty list."""
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lvars = []
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- block = self.frame.block()
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+ try:
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+ block = self.frame.block()
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+ except RuntimeError:
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+ block = None
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while block != None:
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if block.is_global or block.is_static:
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@@ -279,7 +282,12 @@ class FrameVars(object):
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there are no frame argument variables, return an empty list."""
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args = []
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- block = self.frame.block()
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+
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+ try:
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+ block = self.frame.block()
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+ except RuntimeError:
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+ block = None
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+
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while block != None:
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if block.function != None:
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break
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