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Commit bbacff94 authored by Chris Metcalf's avatar Chris Metcalf
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arch/tile: provide a definition of MAP_STACK 



It's convenient for userspace (in particular, glibc) to find a
definition of MAP_STACK.  We use MAP_GROWSDOWN as an alias since
that's appropriate for the main stack, and since our current
allocation of mmap flags bits is running a bit short otherwise.

Signed-off-by: default avatarChris Metcalf <cmetcalf@tilera.com>
parent 6b945df7

arch/tile/include/asm/mman.h

+1 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ 
#define MAP_POPULATE	0x0040		/* populate (prefault) pagetables */

#define MAP_NONBLOCK	0x0080		/* do not block on IO */

#define MAP_GROWSDOWN	0x0100		/* stack-like segment */

#define MAP_STACK	MAP_GROWSDOWN	/* provide convenience alias */

#define MAP_LOCKED	0x0200		/* pages are locked */

#define MAP_NORESERVE	0x0400		/* don't check for reservations */

#define MAP_DENYWRITE	0x0800		/* ETXTBSY */