[Bug libstdc++/68735] FAIL: libstdc++-prettyprinters/libfundts.cc print ab

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68735

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|2017-12-17 00:00:00         |2020-12-02

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The exceptions come from this line:

        func = gdb.block_for_pc(int(mgr.cast(gdb.lookup_type('intptr_t'))))

This casts a function pointer to intptr_t and then tries to find the gdb.Block
corresponding to that address.

The GDB docs say that gdb.block_for_pc will return None, but it seems to throw
instead.

The same thing happens on powerpc64 linux (but not powerpc64le).