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