On 02/16/2012 11:30 AM, Richard Sandiford wrote:
> Seems to be the same:
>
> #0 0x00400ae2 in foo() ()
> #1 0x77d793fc in __mips16_call_stub_df_0 () at ...
> Backtrace stopped: previous frame inner to this frame (corrupt stack?)
>
> (this is a gdb built from 7.4 branch FWIW).
Oh, of course. GDB is seeing the sequence of CFA's:
X foo
X-4 __mips16_call_stub_df_0
X caller
and it is sanity checking the stack is monotonic.
Which seems like a fairly reasonable thing to do...
I'll work on a proper fix to the unwinder; we can then decide
whether and when to apply it...
r~
