Messages in this thread | | | Date | Mon, 22 Nov 2004 08:27:05 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: ptrace single-stepping change breaks Wine |
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On Mon, 22 Nov 2004, Andreas Schwab wrote:
> Linus Torvalds <torvalds@osdl.org> writes: > > > IMHO, this is a nice cleanup, and it also means that I can actually debug > > my "program from hell": > > Does it also work when trying to single step over it? I guess all bets > are off then.
If you single-step over the "popfl", then you need to generate the SIGTRAP's by hand too. IOW, it's _possible_ to emulate the behaviour from within the debugger, but it gets really really nasty very quickly.
I think the nastyness in that case is at least acceptable, since if you single-step, you actually _see_ what is happening, and thus you have a chance in hell of figuring it out. Practical? No. But debuggable at least in theory, which it really wasn't before.
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