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[Bug gdb/15011] unable to fetch function parameters
- From: "tromey at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: gdb-prs at sourceware dot org
- Date: Fri, 11 Jan 2013 16:02:22 +0000
- Subject: [Bug gdb/15011] unable to fetch function parameters
- Auto-submitted: auto-generated
- References: <bug-15011-4717@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=15011
Tom Tromey <tromey at redhat dot com> changed:
What |Removed |Added
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CC| |tromey at redhat dot com
--- Comment #1 from Tom Tromey <tromey at redhat dot com> 2013-01-11 16:02:22 UTC ---
>From the source it appears that this happens if a DWARF
location expression requests the CFA for the frame, but the
frame was found using some other unwinder:
if (!frame_unwinder_is (this_frame, &dwarf2_frame_unwind)
&& !frame_unwinder_is (this_frame, &dwarf2_tailcall_frame_unwind))
error (_("can't compute CFA for this frame"));
Offhand I am not sure under what circumstances this can happen.
Maybe if you are somehow hitting the special epilogue frame unwinder.
If the .o file from which 'exec' comes is not too big, maybe
having it would help.
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