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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>
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Peter Zijlstra
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Linus Torvalds
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Jul 19, 2007
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Original file line number | Diff line number | Diff line change |
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@@ -20,6 +20,7 @@ struct exec | |
#ifdef __KERNEL__ | ||
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#define STACK_TOP TASK_SIZE | ||
#define STACK_TOP_MAX STACK_TOP | ||
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#endif | ||
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Original file line number | Diff line number | Diff line change |
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@@ -20,6 +20,7 @@ struct exec | |
#ifdef __KERNEL__ | ||
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#define STACK_TOP TASK_SIZE | ||
#define STACK_TOP_MAX STACK_TOP | ||
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#endif | ||
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Original file line number | Diff line number | Diff line change |
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@@ -20,6 +20,7 @@ struct exec | |
#ifdef __KERNEL__ | ||
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#define STACK_TOP TASK_SIZE | ||
#define STACK_TOP_MAX STACK_TOP | ||
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#endif | ||
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Original file line number | Diff line number | Diff line change |
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|
@@ -20,6 +20,7 @@ struct exec | |
#ifdef __KERNEL__ | ||
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#define STACK_TOP TASK_SIZE | ||
#define STACK_TOP_MAX STACK_TOP | ||
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#endif | ||
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|
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Original file line number | Diff line number | Diff line change |
---|---|---|
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@@ -20,6 +20,7 @@ struct exec | |
#ifdef __KERNEL__ | ||
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#define STACK_TOP TASK_SIZE | ||
#define STACK_TOP_MAX STACK_TOP | ||
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#endif | ||
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Original file line number | Diff line number | Diff line change |
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@@ -23,6 +23,7 @@ struct exec | |
* prumpf */ | ||
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#define STACK_TOP TASK_SIZE | ||
#define STACK_TOP_MAX DEFAULT_TASK_SIZE | ||
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#endif | ||
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Original file line number | Diff line number | Diff line change |
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@@ -20,6 +20,7 @@ struct exec | |
#ifdef __KERNEL__ | ||
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#define STACK_TOP TASK_SIZE | ||
#define STACK_TOP_MAX STACK_TOP | ||
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#endif | ||
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Original file line number | Diff line number | Diff line change |
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@@ -31,6 +31,7 @@ struct exec | |
#ifdef __KERNEL__ | ||
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#define STACK_TOP TASK_SIZE | ||
#define STACK_TOP_MAX STACK_TOP | ||
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#endif | ||
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