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arch: personality independent stack top

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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 <[email protected]>
Signed-off-by: Ollie Wild <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Peter Zijlstra 2007-07-19 01:48:14 -07:00 • committed by Linus Torvalds
commit b111757c50
22 changed files with 28 additions and 1 deletions
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1
include/asm-parisc/a.out.h
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@ -23,6 +23,7 @@ struct exec
* prumpf */
#define STACK_TOP TASK_SIZE
#define STACK_TOP_MAX DEFAULT_TASK_SIZE
#endif