Commit | Line | Data |
---|---|---|
c5d4bb17 JD |
1 | /* |
2 | * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) | |
9d1ee8ce RW |
3 | * Copyright (C) 2013 Richard Weinberger <richrd@nod.at> |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
1da177e4 LT |
8 | */ |
9 | ||
c5d4bb17 JD |
10 | #include <linux/kallsyms.h> |
11 | #include <linux/kernel.h> | |
12 | #include <linux/module.h> | |
13 | #include <linux/sched.h> | |
382d95fd | 14 | #include <asm/sysrq.h> |
970e51fe | 15 | #include <asm/stacktrace.h> |
f72c22e4 | 16 | #include <os.h> |
1da177e4 | 17 | |
970e51fe | 18 | static void _print_addr(void *data, unsigned long address, int reliable) |
1da177e4 | 19 | { |
970e51fe DW |
20 | pr_info(" [<%08lx>]", address); |
21 | pr_cont(" %s", reliable ? "" : "? "); | |
22 | print_symbol("%s", address); | |
23 | pr_cont("\n"); | |
1da177e4 LT |
24 | } |
25 | ||
970e51fe DW |
26 | static const struct stacktrace_ops stackops = { |
27 | .address = _print_addr | |
28 | }; | |
f72c22e4 | 29 | |
9d1ee8ce | 30 | void show_stack(struct task_struct *task, unsigned long *stack) |
1da177e4 | 31 | { |
fcf81931 | 32 | unsigned long *sp = stack; |
f72c22e4 | 33 | struct pt_regs *segv_regs = current->thread.segv_regs; |
1da177e4 LT |
34 | int i; |
35 | ||
f72c22e4 | 36 | if (!segv_regs && os_is_signal_stack()) { |
970e51fe | 37 | pr_err("Received SIGSEGV in SIGSEGV handler," |
f72c22e4 RW |
38 | " aborting stack trace!\n"); |
39 | return; | |
40 | } | |
41 | ||
f72c22e4 RW |
42 | if (!stack) |
43 | sp = get_stack_pointer(task, segv_regs); | |
1da177e4 | 44 | |
970e51fe | 45 | pr_info("Stack:\n"); |
9d1ee8ce | 46 | stack = sp; |
e96d1c36 | 47 | for (i = 0; i < 3 * STACKSLOTS_PER_LINE; i++) { |
1da177e4 LT |
48 | if (kstack_end(stack)) |
49 | break; | |
9d1ee8ce | 50 | if (i && ((i % STACKSLOTS_PER_LINE) == 0)) |
970e51fe DW |
51 | pr_cont("\n"); |
52 | pr_cont(" %08lx", *stack++); | |
1da177e4 | 53 | } |
970e51fe | 54 | pr_cont("\n"); |
1da177e4 | 55 | |
970e51fe DW |
56 | pr_info("Call Trace:\n"); |
57 | dump_trace(current, &stackops, NULL); | |
58 | pr_info("\n"); | |
1da177e4 | 59 | } |