From: "Andrew Crabtree" <andrewc AT rosemail DOT rose DOT hp DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Exceptions
Date: Thu, 14 May 1998 09:55:48 -0700
Organization: Hewlett-Packard, Roseville
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References: <19980511035425 DOT AAP4598 AT ppp107 DOT cartsys DOT com>
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Nate Eldredge wrote in message
<19980511035425 DOT AAP4598 AT ppp107 DOT cartsys DOT com>...
>>>AFAIK, the standard `-fexceptions' switch handles exceptions through a
>>>table
Yep.

>As I understand it, 2.8.1 just enables `-fsjlj-exceptions' by default, to
>save you the trouble. Unless something I haven't heard about has happened,
>nothing has actually changed.
I doubt this.  I only have the diffs from 2.8.1 but there is a new startup
file crtf.o as well as a linker script
change to make symbol EH_FRAME_START which is what is needed to initialize
the exception tables.  Robert H did the work on this.

In general -

-fexceptions causes exe bloat, but has small runtime overhead
-fsjlj-exceptions doesn't add much to exe but has performance penalty.

I have read reports that say sjlj is faster then table driver on some
architectures though . ??

Andy