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/* -*- linux-c -*-
* ia64 stack tracing functions
* Copyright (C) 2005 Intel Corporation.
*
* This file is part of systemtap, and is free software. You can
* redistribute it and/or modify it under the terms of the GNU General
* Public License (GPL); either version 2, or (at your option) any
* later version.
*/
struct dump_para{
unsigned long *sp;
};
static void __stp_show_stack_sym(struct unw_frame_info *info, void *arg)
{
unsigned long ip, skip=1;
struct pt_regs *regs = container_of(((struct dump_para*)arg)->sp, struct pt_regs, r12);
do {
unw_get_ip(info, &ip);
if (ip == 0) break;
if (skip){
if (ip == REG_IP(regs))
skip = 0;
continue;
}
_stp_print_char(' ');
_stp_symbol_print(ip);
_stp_print_char('\n');
} while (unw_unwind(info) >= 0);
}
static void __stp_show_stack_addr(struct unw_frame_info *info, void *arg)
{
unsigned long ip, skip=1;
struct pt_regs *regs = container_of(((struct dump_para*)arg)->sp, struct pt_regs, r12);
do {
unw_get_ip(info, &ip);
if (ip == 0) break;
if (skip){
if (ip == REG_IP(regs))
skip = 0;
continue;
}
_stp_printf ("0x%016lx ", ip);
} while (unw_unwind(info) >= 0);
}
static void __stp_stack_print (struct pt_regs *regs, int verbose, int levels,
struct task_struct *tsk,
struct uretprobe_instance *ri)
{
unsigned long *stack = (unsigned long *)®_SP(regs);
struct dump_para para;
para.sp = stack;
if (verbose)
unw_init_running(__stp_show_stack_sym, ¶);
else
unw_init_running(__stp_show_stack_addr, ¶);
}
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