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/freebsd-11.0-release/sys/vm/ | ||
H A D | vm_map.h | diff 119595 Sat Aug 30 21:25:23 MDT 2003 marcel Introduce MAP_ENTRY_GROWS_DOWN and MAP_ENTRY_GROWS_UP to allow for growable (stack) entries that not only grow down, but also grow up. Have vm_map_growstack() take these flags into account when growing an entry. This is the first step in adding support for upward growable stacks. It is a required feature on ia64 to support the register stack (or rstack as I like to call it -- it also means reverse stack). We do not currently create rstacks, so the upward growing is not exercised and the change should be a functional no-op. Reviewed by: alc |
H A D | vm_map.c | diff 119595 Sat Aug 30 21:25:23 MDT 2003 marcel Introduce MAP_ENTRY_GROWS_DOWN and MAP_ENTRY_GROWS_UP to allow for growable (stack) entries that not only grow down, but also grow up. Have vm_map_growstack() take these flags into account when growing an entry. This is the first step in adding support for upward growable stacks. It is a required feature on ia64 to support the register stack (or rstack as I like to call it -- it also means reverse stack). We do not currently create rstacks, so the upward growing is not exercised and the change should be a functional no-op. Reviewed by: alc |
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