On Fri, Feb 06, 2009 at 09:50:39PM +0100, Helge Deller wrote:
> +#include <asm/unwind.h>
> +
> +static void dump_trace(struct task_struct *task, struct stack_trace *trace)
> +{
> + struct unwind_frame_info info;
> +
> + /* initialize unwind info */
> + if (task == current) {
> + unsigned long sp;
> + struct pt_regs r;
> +HERE:
> + asm volatile ("copy %%r30, %0" : "=r"(sp));
> + memset(&r, 0, sizeof(struct pt_regs));
> + r.iaoq[0] = (unsigned long)&&HERE;
> + r.gr[2] = (unsigned long)__builtin_return_address(0);
> + r.gr[30] = sp;
> + unwind_frame_init(&info, task, &r);
> + } else {
> + unwind_frame_init_from_blocked_task(&info, task);
> + }
> +
applied, with a clean up that takes this to a forced inline to share
between here and traps.c.
cheers, Kyle
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