pushed: Add support for DWARF-based fixed point types

Simon Marchi simark@simark.ca
Tue Nov 17 14:25:30 GMT 2020


On 2020-11-16 6:48 p.m., Pedro Alves wrote:
> Hi Joel,
> 
> On 11/15/20 8:35 AM, Joel Brobecker wrote:
>> Hi everyone,
>>
>> I just finished pusing the following patch series to branch master.
> 
> I noticed that a new unit test added by this series is failing for me on
> Ubuntu 20.04, which has libgmp.so.10.4.0 :
> 
>  $ ./gdb -ex "maint selftest gdb_mpq_write_fixed_point"
>  GNU gdb (GDB) 11.0.50.20201116-git
>  ...
>  Running selftest gdb_mpq_write_fixed_point.
>  *** stack smashing detected ***: terminated
>  Aborted (core dumped)
>  $
> 
> I've built a clean gdb from scratch to confirm.
> 
> The test passes on Fedora 27, which has libgmp.so.10.3.2:
> 
>  $ ./gdb -ex "maint selftest gdb_mpq_write_fixed_point"
>  GNU gdb (GDB) 11.0.50.20201116-git
>  Running selftest gdb_mpq_write_fixed_point.
>  Ran 1 unit tests, 0 failed
> 
> Anyone else seeing this?
> 

I didn't see it in my -O0 compiled GDB, but I do see it in my -O2 compiled GDB.

Simon


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