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| author | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 18:22:14 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 18:22:14 +0900 |
| commit | a6a31139897a5e539efe7ad3b7bd351fa9673ce8 (patch) | |
| tree | 6e2ad11d93ab95214694038080c79284c6da30d6 /arch/sh/kernel/traps.c | |
| parent | 2cb7ce3bb384f30a377f66336c78546b834604df (diff) | |
| download | linux-a6a31139897a5e539efe7ad3b7bd351fa9673ce8.tar.bz2 | |
sh: Add support for 4K stacks.
This enables support for 4K stacks on SH.
Currently this depends on DEBUG_KERNEL, but likely all boards
will switch to this as the default in the future.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/traps.c')
| -rw-r--r-- | arch/sh/kernel/traps.c | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c index 95c810b3c97e..c2c597e09482 100644 --- a/arch/sh/kernel/traps.c +++ b/arch/sh/kernel/traps.c @@ -741,20 +741,12 @@ void show_stack(struct task_struct *tsk, unsigned long *sp) unsigned long module_end = VMALLOC_END; int i = 1; - if (tsk && !sp) { + if (!tsk) + tsk = current; + if (tsk == current) + sp = (unsigned long *)current_stack_pointer; + else sp = (unsigned long *)tsk->thread.sp; - } - - if (!sp) { - __asm__ __volatile__ ( - "mov r15, %0\n\t" - "stc r7_bank, %1\n\t" - : "=r" (module_start), - "=r" (module_end) - ); - - sp = (unsigned long *)module_start; - } stack = sp; |