Revise the address map to better utilise the address space, allowing
larger heaps and stacks: * There is now the potential for up to 2.75GB dynamic space on FreeBSD, and 1.75GB on linux. Since GENCGC statically allocates page tables the default size is set at just 1GB. * The Read-only and Static spaces have been increased to 256MB allowing larger heaps to be purified. The Read-only and Static spaces are in the same locations for both the FreeBSD and Linux ports to avoid unnecessary binary incompatibility. * The Control stack and Binking stack now have room for upto 128MB, supporting deeply nested algorithms, and potentially giving room for subdivision for thread stacks. * There is a reserve for the FreeBSD static libraries in the event that the FreeBSD lisp binary is dynamically linked, and the foreign segment size for FreeBSD is now 32MB, up from just 4MB. * There is now significantly more room for C allocated memory, roughly 128M on Linux and 224M on FreeBSD.
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