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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2007-07-19 01:48:14 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 10:04:45 -0700
commitb111757c50ee30dad162192df6168e270a90c252 (patch)
tree49a38ddb2fd5f53ceb4f76c802c2185c1be9a6c6 /include/asm-um
parentf34e3b61f2be9628bd41244f3ecc42009c5eced5 (diff)
downloadop-kernel-dev-b111757c50ee30dad162192df6168e270a90c252.zip
op-kernel-dev-b111757c50ee30dad162192df6168e270a90c252.tar.gz
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-um')
-rw-r--r--include/asm-um/a.out.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-um/a.out.h b/include/asm-um/a.out.h
index 7016b89..78bc9ee 100644
--- a/include/asm-um/a.out.h
+++ b/include/asm-um/a.out.h
@@ -17,4 +17,6 @@ extern int honeypot;
#define STACK_TOP \
CHOOSE_MODE((honeypot ? host_task_size : task_size), task_size)
+#define STACK_TOP_MAX STACK_TOP
+
#endif
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