How is Win/Dos syscalls implemented in Wine?

Sylvain Petreolle spetreolle at
Fri Oct 25 20:38:36 CDT 2002

Why couldnt we implement a int 0x80 that would do nothing/call SIGSEGV
handler ? We did it for all other ints we have implemented.

> If, let's say, a windoze app really used int 0x80 to intentially
> obliterate the user's system? Well, Wine wouldn't stop it.
> > I know wine uses the ptrace syscall, is that really only
> > for debugging purposes, or is it for catching the SIGSEGV
> > signals also?
> It's to support certain win32 features (that's mostly used for
> debugging).
> Catching signals is done with sigaction().

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