weigand at immd1.informatik.uni-erlangen.de
Mon May 19 17:14:01 CDT 2003
Gregory Turner wrote:
> Possible goals are:
> achieve real "SEH"-style syntax, that is, no bloody __ENDTRY macro.
> fix "break"
> fix "return" from try/finally blocks.
These are certainly interesting goals, but they appear to be hard
to achieve without compiler support ...
> Anyhow, I'll take a look at the dwarf2 goodies, maybe I'll decide that it's
> do-able, but more trouble than its worth... either way, I intend to make some
> kind of patch out of this whole investigation, as I am pretty darn sure I can
> at least fix one of the forementioned deficiencies, maybe even two, without
> making any major sacrifices.
I don't quite see how dwarf2 unwinding fits into this. Is this just to be
able to avoid the setjmp?
Note that g++ exception handling with dwarf2 works quite different from
MSVC exception handling -- the former hooks exception processing into
the dwarf2 frame 'personality' routines, while the latter uses the
exception frame chain anchored in the TEB ...
Dr. Ulrich Weigand
weigand at informatik.uni-erlangen.de
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