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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2007-07-19 04:48:14 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 13:04:45 -0400
commitb111757c50ee30dad162192df6168e270a90c252 (patch)
tree49a38ddb2fd5f53ceb4f76c802c2185c1be9a6c6 /include/asm-ia64
parentf34e3b61f2be9628bd41244f3ecc42009c5eced5 (diff)
arch: personality independent stack top
New arch macro STACK_TOP_MAX it gives the larges valid stack address for the architecture in question. It differs from STACK_TOP in that it will not distinguish between personalities but will always return the largest possible address. This is used to create the initial stack on execve, which we will move down to the proper location once the binfmt code has figured out where that is. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ollie Wild <aaw@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-ia64')
-rw-r--r--include/asm-ia64/ustack.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-ia64/ustack.h b/include/asm-ia64/ustack.h
index a349467913ea..504167c35b8b 100644
--- a/include/asm-ia64/ustack.h
+++ b/include/asm-ia64/ustack.h
@@ -11,6 +11,7 @@
11/* The absolute hard limit for stack size is 1/2 of the mappable space in the region */ 11/* The absolute hard limit for stack size is 1/2 of the mappable space in the region */
12#define MAX_USER_STACK_SIZE (RGN_MAP_LIMIT/2) 12#define MAX_USER_STACK_SIZE (RGN_MAP_LIMIT/2)
13#define STACK_TOP (0x6000000000000000UL + RGN_MAP_LIMIT) 13#define STACK_TOP (0x6000000000000000UL + RGN_MAP_LIMIT)
14#define STACK_TOP_MAX STACK_TOP
14#endif 15#endif
15 16
16/* Make a default stack size of 2GiB */ 17/* Make a default stack size of 2GiB */