new ubsan handler

[Martin Liška]

On 12/19/22 10:25, Martin Uecker wrote:
> Am Montag, dem 19.12.2022 um 09:44 +0100 schrieb Martin Liška:
>> On 12/17/22 20:35, Martin Uecker wrote:
>>>
>>>
>>> Hi all,
>>>
>>> what is the process for adding a new UBsan handler?
>>
>> Hello.
>>
>> Yes, we sync the run-time library from LLVM project. So a new
>> sanitizer
>> should go there first.
>>
>>>
>>> We have the source in the GCC tree, but I guess this
>>> should go via LLVM?
>>
>> And the compiler support (instrumentation) is independent.
> 
> Thanks Martin!
> 
> Does it make sense to send the full patch (with changes
> to the compiler and library) to gcc-patches first for
> review?

Yep, please CC me.

> 
> I am working on a patch that calls a handler when bounds
> for VM-types do not match on assignment.

Nice. So basically something like -fsanitize=bounds/bounds-strict/object-size ?

Martin

> 
> 
> Martin
>