On Fri, 25 Jul 2008 12:27:48 +0300 Adrian Bunk <bunk@xxxxxxxxxx> wrote:
> Further testing revealed that you should choose a file that also gets
> compiled on MMU-less architectures:
We don't have one :(
I guess util.c will have to do.
diff -puN include/linux/sched.h~uninline-arch_pick_mmap_layout include/linux/sched.h
--- a/include/linux/sched.h~uninline-arch_pick_mmap_layout
+++ a/include/linux/sched.h
@@ -2139,16 +2139,7 @@ static inline void set_task_cpu(struct t
#endif /* CONFIG_SMP */
-#ifdef HAVE_ARCH_PICK_MMAP_LAYOUT
extern void arch_pick_mmap_layout(struct mm_struct *mm);
-#else
-static inline void arch_pick_mmap_layout(struct mm_struct *mm)
-{
- mm->mmap_base = TASK_UNMAPPED_BASE;
- mm->get_unmapped_area = arch_get_unmapped_area;
- mm->unmap_area = arch_unmap_area;
-}
-#endif
#ifdef CONFIG_TRACING
extern void
diff -puN mm/util.c~uninline-arch_pick_mmap_layout mm/util.c
--- a/mm/util.c~uninline-arch_pick_mmap_layout
+++ a/mm/util.c
@@ -1,3 +1,4 @@
+#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/module.h>
@@ -160,3 +161,12 @@ char *strndup_user(const char __user *s,
return p;
}
EXPORT_SYMBOL(strndup_user);
+
+#ifndef HAVE_ARCH_PICK_MMAP_LAYOUT
+void arch_pick_mmap_layout(struct mm_struct *mm)
+{
+ mm->mmap_base = TASK_UNMAPPED_BASE;
+ mm->get_unmapped_area = arch_get_unmapped_area;
+ mm->unmap_area = arch_unmap_area;
+}
+#endif
_
We should make arch_pick_mmap_layout __weak and nuke that ifdef.
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