int128_t and uint128_t typeinfo

Hartmut.Brandt at Hartmut.Brandt at
Wed Feb 22 15:21:00 UTC 2017

Looks like they are still not there. I've rebuilt world.

nm -D -C /usr/lib/  | grep 128

should show me the symbols, right? It does not.


-----Original Message-----
From: Dimitry Andric [mailto:dim at] 
Sent: Tuesday, February 21, 2017 10:52 PM
To: Brandt, Hartmut
Cc: current at
Subject: Re: int128_t and uint128_t typeinfo

On 21 Feb 2017, at 18:26, Dimitry Andric <dim at> wrote:
> On 21 Feb 2017, at 13:48, Hartmut Brandt <hartmut.brandt at> wrote:
>> it looks like the typeinfo for __int128_t and __uint128_t is missing from our dynamically linked libcxxrt.
> * We also need to add the typeinfo for __u?int128_t * and __u?int128_t  
> const *
> * Maybe these should be under the CXXABI_2.0 version, since that is  
> where newer libstdc++ places them
> * Maybe these should be dependent on whether the architecture supports
>  128 bit integers at all
> I need to think a bit on the above, then I'll commit a fix.

Okay, can you please try r314061?


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