1 #include <linux/sched.h>
2 #include <linux/stacktrace.h>
3 #include <linux/thread_info.h>
4 #include <linux/module.h>
5 #include <asm/ptrace.h>
6 #include <asm/stacktrace.h>
10 void save_stack_trace(struct stack_trace *trace)
12 unsigned long ksp, fp, thread_base;
13 struct thread_info *tp = task_thread_info(current);
22 fp = ksp + STACK_BIAS;
23 thread_base = (unsigned long) tp;
25 struct sparc_stackf *sf;
29 if (!kstack_valid(tp, fp))
32 sf = (struct sparc_stackf *) fp;
33 regs = (struct pt_regs *) (sf + 1);
35 if (kstack_is_trap_frame(tp, regs)) {
36 if (!(regs->tstate & TSTATE_PRIV))
39 fp = regs->u_regs[UREG_I6] + STACK_BIAS;
42 fp = (unsigned long)sf->fp + STACK_BIAS;
48 trace->entries[trace->nr_entries++] = pc;
49 } while (trace->nr_entries < trace->max_entries);
51 EXPORT_SYMBOL_GPL(save_stack_trace);