[android-devel] [macios-devel] Signal-chaining & crash reporters

[Rodrigo Kumpera]

Hey Rolf,

On your suggestion, I’m not sure that’s exactly what we want.
Even though we can ask user to do signal chaining themselves, I don’t think it’s necessary. I don’t think we should be promoting the broken design of posix signals around. ;)
Another thing is that this design is not portable and exposes a bit too much of mono internals.

What about this: https://gist.github.com/569e860dd7e73bde0d8d098f95143662

It probably won’t compile as I normalized the signature of mono_handle_native_sigsegv with other similar functions.

--
Rodrigo


On 9/19/16, 3:25 AM, "Rolf Kvinge" <Rolf.Kvinge at microsoft.com> wrote:

    
    Hi,
    
    > From: Rodrigo Kumpera
    >   
    > 
    > Hey guys,
    > 
    >  Exposing signal handlers from managed code is always the wrong solution.
    > 
    > 
    > 
    > If we're crashing in the runtime, a managed code signal handler has very little chance of works. It's a scenario we will never even consider supporting.
    
    This is not about exposing signal handlers to managed code, the signal handlers we want called are always in native code.
    
    > 
    > 
    > 
    > I guess the simple solution is to add an embedding API call that queues signal handlers
    > to be called first before chaining to the OS one.
    
    Something like this: https://gist.github.com/rolfbjarne/6aab59c1609f33402d195f9c34e9f99b?
    
    Rolf