10  *    Copyright (c) 2003-2004 Silicon Graphics Inc.  All Rights Reserved.
34 /* Returns non-zero if the PC is in the Interrupt Vector Table */
35 static __inline__ int in_ivt_code(unsigned long pc)  in in_ivt_code()  argument
38 	return (pc >= (u_long)ia64_ivt && pc < (u_long)ia64_ivt+32768);  in in_ivt_code()
51 	if (in_ivt_code(bt->frame.ip))  in next_frame()
62 	if (bt->prev_pfs_loc && bt->regs && bt->frame.pfs_loc == bt->prev_pfs_loc)  in next_frame()
63 		bt->frame.pfs_loc = &bt->regs->ar_pfs;  in next_frame()
64 	bt->prev_pfs_loc = NULL;  in next_frame()
66 	return unw_unwind(&bt->frame) == 0;  in next_frame()
75 	u_long pc, sp;  in do_ia64_backtrace()  local
81 	unw_init_frame_info(&bt->frame, current, sw);  in do_ia64_backtrace()
85 		unw_get_sp(&bt->frame, &sp);  in do_ia64_backtrace()
86 		if (sp >= (u_long)bt->regs)  in do_ia64_backtrace()
93 	while (bt->depth-- && next_frame(bt)) {  in do_ia64_backtrace()
94 		unw_get_ip(&bt->frame, &pc);  in do_ia64_backtrace()
95 		oprofile_add_trace(pc);  in do_ia64_backtrace()
96 		if (unw_is_intr_frame(&bt->frame)) {  in do_ia64_backtrace()
119 	 * user space programs -- the problems of getting the unwind  in ia64_backtrace()