Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-02 00:51:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

arch/tile: provide a definition of MAP_STACK

Browse Source 
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: Chris Metcalf <cmetcalf@tilera.com>
This commit is contained in:
Chris Metcalf 2010-10-14 15:09:02 -04:00
parent 6b945df742
commit bbacff94d0
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/tile/include/asm/mman.h
View File

@ -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 */