[SHrinker] gdb still doing funny things

[eric pouech]

Robert Baruch wrote:
> 
> I got around the problem of gdb unprotecting the write protected page by
> not setting the breakpoint until after the write fault occurs.
> 
> When I stepped through the Shrinker exception handler, I got to the point
> where it calls ReadProcessMemory with a handle of -1 to get the 8 bytes
> around the EXC_CallHandler's call. ReadProcessMemory fails with an
> ACCESS_DENIED, and trips a landmine.
that's normal... wineserver tries to read memory from process -1 (aka
the
caller) and needs to attach to this process, which is currently attached
by gdb... hence the issue

did you try to add in scheduler/process.c for ReadProcessMemory
something
like:
if (handle == (HANDLE)0xFFFFFFFF)
{
	memcpy(buffer, addr, size);
	if (bytes_read) *bytes_read = size;
	return TRUE;
}

HTH
A+
-- 
---------------
Eric Pouech (http://perso.wanadoo.fr/eric.pouech/)
"The future will be better tomorrow", Vice President Dan Quayle