factor/vm/segments.hpp

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namespace factor
{
inline cell align_page(cell a)
{
return align(a,getpagesize());
}
/* segments set up guard pages to check for under/overflow.
size must be a multiple of the page size */
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struct segment {
cell start;
cell size;
cell end;
explicit segment(cell size, bool executable_p);
~segment();
};
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}