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authorPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>2005-05-28 15:52:00 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-28 16:46:13 -0700
commitb3461034d7d46455060c8476910be22b6b0fc313 (patch)
treed5ebcf803116eb3c5800189ebb065df28c994d07 /include/asm-um
parent37fce857bec00d26d0e8251c909da2bd8736c949 (diff)
[PATCH] uml: stack dump fix
Copy (and adapt) to UML the stack code dumper used in i386 when CONFIG_FRAME_POINTER is enabled. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-um')
-rw-r--r--include/asm-um/thread_info.h7
1 files changed, 3 insertions, 4 deletions
diff --git a/include/asm-um/thread_info.h b/include/asm-um/thread_info.h
index a10ea155907..e4f0198240c 100644
--- a/include/asm-um/thread_info.h
+++ b/include/asm-um/thread_info.h
@@ -41,18 +41,17 @@ struct thread_info {
#define init_thread_info (init_thread_union.thread_info)
#define init_stack (init_thread_union.stack)
+#define THREAD_SIZE ((1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE)
/* how to get the thread information struct from C */
static inline struct thread_info *current_thread_info(void)
{
struct thread_info *ti;
- unsigned long mask = PAGE_SIZE *
- (1 << CONFIG_KERNEL_STACK_ORDER) - 1;
- ti = (struct thread_info *) (((unsigned long) &ti) & ~mask);
+ unsigned long mask = THREAD_SIZE - 1;
+ ti = (struct thread_info *) (((unsigned long) &ti) & ~mask);
return ti;
}
/* thread information allocation */
-#define THREAD_SIZE ((1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE)
#define alloc_thread_info(tsk) \
((struct thread_info *) kmalloc(THREAD_SIZE, GFP_KERNEL))
#define free_thread_info(ti) kfree(ti)