ptrace single-stepping change breaks Wine
Daniel Jacobowitz
dan at debian.org
Fri Dec 31 09:10:45 CST 2004
On Thu, Dec 30, 2004 at 09:47:42PM -0800, Linus Torvalds wrote:
> So I looked at just sharing the code with the debug trap handler, and the
> result is appended. strace works, as does all the TF tests I've thrown at
> it, and the code actually looks better anyway (the old do_debug code looks
> like it got the EIP wrong in VM86 mode, for example, this just cleans
> that up too). Just use a common "send_sigtrap()" routine.
>
> Does this look saner?
Lots, I like it. The syscall trap will always be delivered before the
single-step trap, right, because signal delivery won't run until we
return to userspace?
--
Daniel Jacobowitz
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