Changeset 544a2e4 in mainline for kernel/arch/ia64/include/context.h

Timestamp:

2011-05-30T21:37:43Z (14 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

7b712b60

Parents:

18ba2e4f (diff), 0743493a (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge mainline changes.

File:

• kernel/arch/ia64/include/context.h (modified) (1 diff)

kernel/arch/ia64/include/context.h

@@ -49 +49 @@
 #define SP_DELTA        (0 + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
 
-/* RSE stack starts at the bottom of memory stack. */
+/* RSE stack starts at the bottom of memory stack, hence the division by 2. */
 #define context_set(c, _pc, stack, size)                                                                \
         do {                                                                                            \
                 (c)->pc = (uintptr_t) _pc;                                                              \
-                (c)->bsp = ((uintptr_t) stack) + ALIGN_UP((size), REGISTER_STACK_ALIGNMENT);            \
+                (c)->bsp = ((uintptr_t) stack) + ALIGN_UP((size / 2), REGISTER_STACK_ALIGNMENT);        \
                 (c)->ar_pfs &= PFM_MASK;                                                                \
-                (c)->sp = ((uintptr_t) stack) + ALIGN_UP((size), STACK_ALIGNMENT) - SP_DELTA;           \
+                (c)->sp = ((uintptr_t) stack) + ALIGN_UP((size / 2), STACK_ALIGNMENT) - SP_DELTA;       \
         } while (0);