- ip = *(unsigned long *)(sp + 16);
- printk("[%016lx] ", ip);
- print_symbol("%s\n", ip);
+
+ _sp = (unsigned long *) sp;
+ newsp = _sp[0];
+ ip = _sp[2];
+ if (!firstframe || ip != lr) {
+ printk("[%016lx] [%016lx] ", sp, ip);
+ print_symbol("%s", ip);
+ if (firstframe)
+ printk(" (unreliable)");
+ printk("\n");
+ }
+ firstframe = 0;
+
+ /*
+ * See if this is an exception frame.
+ * We look for the "regshere" marker in the current frame.
+ */
+ if (validate_sp(sp, p, sizeof(struct pt_regs) + 400)
+ && _sp[12] == 0x7265677368657265ul) {
+ struct pt_regs *regs = (struct pt_regs *)
+ (sp + STACK_FRAME_OVERHEAD);
+ printk("--- Exception: %lx", regs->trap);
+ print_symbol(" at %s\n", regs->nip);
+ lr = regs->link;
+ print_symbol(" LR = %s\n", lr);
+ firstframe = 1;
+ }
+
+ sp = newsp;