On Wednesday, 9 April 2014 at 16:48:54 UTC, Jacob Carlborg wrote:
x86_64 yes, not necessarily only for DMD. I thought if DMD, LDC and GDC all used the same exception handling model and the same as C++ it would be easier. Especially for implementing support for Objective-C exceptions, which is why initially started this thread.
They don't. GDC and LDC use libunwind, whereas DMD uses its own custom EH implementation.
With GDC and LDC, you'd just need to add your code to handle Objective-C exceptions to the personality functions. libunwind exceptions have a "type"/"source language" field, and by default most implementations either ignore unknown exception types or abort on encountering them.
David
