diff options
Diffstat (limited to 'arch/sparc64/kernel/traps.c')
| -rw-r--r-- | arch/sparc64/kernel/traps.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index 6ef2d299fb10..6ef42b8e53d8 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -2134,12 +2134,20 @@ static void user_instruction_dump (unsigned int __user *pc) void show_stack(struct task_struct *tsk, unsigned long *_ksp) { unsigned long pc, fp, thread_base, ksp; - void *tp = task_stack_page(tsk); + struct thread_info *tp; struct reg_window *rw; int count = 0; ksp = (unsigned long) _ksp; - + if (!tsk) + tsk = current; + tp = task_thread_info(tsk); + if (ksp == 0UL) { + if (tsk == current) + asm("mov %%fp, %0" : "=r" (ksp)); + else + ksp = tp->ksp; + } if (tp == current_thread_info()) flushw_all(); @@ -2168,11 +2176,7 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) void dump_stack(void) { - unsigned long *ksp; - - __asm__ __volatile__("mov %%fp, %0" - : "=r" (ksp)); - show_stack(current, ksp); + show_stack(current, NULL); } EXPORT_SYMBOL(dump_stack); |