kbuild: create a way to create preprocessor constants from C expressions
commit1cdf25d704f7951d02a04064c97db547d6021872
authorChristoph Lameter <clameter@sgi.com>
Mon, 28 Apr 2008 09:12:44 +0000 (28 02:12 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 28 Apr 2008 15:58:21 +0000 (28 08:58 -0700)
tree2571b70c1d95ea66086500b362a0f7fe2999acbc
parent308c05e35e3517d19bb67a7e97772235c9e15cd7
kbuild: create a way to create preprocessor constants from C expressions

The use of enums create constants that are not available to the preprocessor
when building the kernel (f.e.  MAX_NR_ZONES).

Arch code already has a way to export constants calculated to the preprocessor
through the asm-offsets.c file.  Generate something similar for the core
kernel through kbuild.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kbuild
kernel/bounds.c [new file with mode: 0644]