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Another reason ASLR may fail is the coupling of the standard shared mem regions (global, userinfo, process info, shared console) to the address of the Cygwin DLL. They are always placed in fixed addresses preceeding the Cygwin DLL's address. With ASLR this is bound to fail. Use a fixed, unused memory area to place the shared mem regions. This also allows to simplify the shared memory creation. There's no reason anymore to rebase the regions and rather than offsets, just use the addresses directly. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cygwin documentation is available on the net at https://cygwin.com You might especially be interested in https://cygwin.com/faq/faq.html#faq.programming.building-cygwin