gcc-dw2? or fast sjlj-exceptions EH

Eric Blake ebb9@byu.net
Wed Sep 12 13:22:00 GMT 2007

Hash: SHA1

According to Tatsuro MATSUOKA on 9/11/2007 9:58 PM:
> Dear Eric

No need to write me personally - I read the lists.

> However, I cannot understand the sjlj-exception was adopted in the 
> cygwin gcc and mingw gcc of the current version.

To rehash this thread, sjlj-exception handling was adopted by cygwin gcc
because no one has yet completed a patch that does dwarf exception
handling across Windows callbacks.  In other words, sjlj-exception
handling is used because it is the only choice that works to date.

>   However the speed 
> of mingw binary is much faster  than that of the cygwin.

That's because cygwin is an emulation layer, and is inherently slower than
mingw because it is doing more under the hood to behave more like Posix.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             ebb9@byu.net
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