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[PATCH] uml: stack dump fix

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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>
This commit is contained in:
Paolo 'Blaisorblade' Giarrusso
2005-05-28 15:52:00 -07:00
committed by Linus Torvalds
parent 37fce857be
commit b3461034d7
6 changed files with 100 additions and 36 deletions
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7
include/asm-um/thread_info.h
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@@ -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)