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Commit | Line | Data |
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c5d4bb17 JD |
1 | /* |
2 | * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) | |
1da177e4 LT |
3 | * Licensed under the GPL |
4 | */ | |
5 | ||
c5d4bb17 JD |
6 | #include <linux/kallsyms.h> |
7 | #include <linux/kernel.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/sched.h> | |
382d95fd | 10 | #include <asm/sysrq.h> |
1da177e4 | 11 | |
b3461034 PBG |
12 | /* Catch non-i386 SUBARCH's. */ |
13 | #if !defined(CONFIG_UML_X86) || defined(CONFIG_64BIT) | |
14 | void show_trace(struct task_struct *task, unsigned long * stack) | |
1da177e4 | 15 | { |
c5d4bb17 | 16 | unsigned long addr; |
1da177e4 | 17 | |
c5d4bb17 | 18 | if (!stack) { |
b3461034 | 19 | stack = (unsigned long*) &stack; |
1da177e4 LT |
20 | WARN_ON(1); |
21 | } | |
22 | ||
c5d4bb17 JD |
23 | printk(KERN_INFO "Call Trace: \n"); |
24 | while (((long) stack & (THREAD_SIZE-1)) != 0) { | |
25 | addr = *stack; | |
1da177e4 | 26 | if (__kernel_text_address(addr)) { |
c5d4bb17 JD |
27 | printk(KERN_INFO "%08lx: [<%08lx>]", |
28 | (unsigned long) stack, addr); | |
29 | print_symbol(KERN_CONT " %s", addr); | |
30 | printk(KERN_CONT "\n"); | |
31 | } | |
32 | stack++; | |
33 | } | |
34 | printk(KERN_INFO "\n"); | |
1da177e4 | 35 | } |
b3461034 | 36 | #endif |
1da177e4 LT |
37 | |
38 | /* | |
39 | * stack dumps generator - this is used by arch-independent code. | |
40 | * And this is identical to i386 currently. | |
41 | */ | |
42 | void dump_stack(void) | |
43 | { | |
44 | unsigned long stack; | |
45 | ||
b3461034 | 46 | show_trace(current, &stack); |
1da177e4 LT |
47 | } |
48 | EXPORT_SYMBOL(dump_stack); | |
49 | ||
50 | /*Stolen from arch/i386/kernel/traps.c */ | |
0d0d0ed4 | 51 | static const int kstack_depth_to_print = 24; |
1da177e4 LT |
52 | |
53 | /* This recently started being used in arch-independent code too, as in | |
54 | * kernel/sched.c.*/ | |
55 | void show_stack(struct task_struct *task, unsigned long *esp) | |
56 | { | |
57 | unsigned long *stack; | |
58 | int i; | |
59 | ||
60 | if (esp == NULL) { | |
b3461034 | 61 | if (task != current && task != NULL) { |
1da177e4 | 62 | esp = (unsigned long *) KSTK_ESP(task); |
1da177e4 LT |
63 | } else { |
64 | esp = (unsigned long *) &esp; | |
65 | } | |
66 | } | |
67 | ||
68 | stack = esp; | |
c5d4bb17 | 69 | for (i = 0; i < kstack_depth_to_print; i++) { |
1da177e4 LT |
70 | if (kstack_end(stack)) |
71 | break; | |
72 | if (i && ((i % 8) == 0)) | |
ad361c98 JP |
73 | printk(KERN_INFO " "); |
74 | printk(KERN_CONT "%08lx ", *stack++); | |
1da177e4 LT |
75 | } |
76 | ||
fad1c45c | 77 | show_trace(task, esp); |
1da177e4 | 78 | } |