projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * Copyright (C) 2001 Jeff Dike (jdike@karaya.com) | |
| 3 | * Licensed under the GPL | |
| 4 | */ | |
| 5 | ||
| 6 | #include "linux/sched.h" | |
| 7 | #include "linux/kernel.h" | |
| 8 | #include "linux/module.h" | |
| 9 | #include "linux/kallsyms.h" | |
| 10 | #include "asm/page.h" | |
| 11 | #include "asm/processor.h" | |
| 12 | #include "sysrq.h" | |
| 1da177e4 | 13 | |
| b3461034 PBG |
14 | /* Catch non-i386 SUBARCH's. */ |
| 15 | #if !defined(CONFIG_UML_X86) || defined(CONFIG_64BIT) | |
| 16 | void show_trace(struct task_struct *task, unsigned long * stack) | |
| 1da177e4 | 17 | { |
| 1da177e4 LT |
18 | unsigned long addr; |
| 19 | ||
| 20 | if (!stack) { | |
| b3461034 | 21 | stack = (unsigned long*) &stack; |
| 1da177e4 LT |
22 | WARN_ON(1); |
| 23 | } | |
| 24 | ||
| 25 | printk("Call Trace: \n"); | |
| 26 | while (((long) stack & (THREAD_SIZE-1)) != 0) { | |
| 27 | addr = *stack; | |
| 28 | if (__kernel_text_address(addr)) { | |
| 29 | printk("%08lx: [<%08lx>]", (unsigned long) stack, addr); | |
| 30 | print_symbol(" %s", addr); | |
| 31 | printk("\n"); | |
| 32 | } | |
| 33 | stack++; | |
| 34 | } | |
| 35 | printk("\n"); | |
| 36 | } | |
| b3461034 | 37 | #endif |
| 1da177e4 LT |
38 | |
| 39 | /* | |
| 40 | * stack dumps generator - this is used by arch-independent code. | |
| 41 | * And this is identical to i386 currently. | |
| 42 | */ | |
| 43 | void dump_stack(void) | |
| 44 | { | |
| 45 | unsigned long stack; | |
| 46 | ||
| b3461034 | 47 | show_trace(current, &stack); |
| 1da177e4 LT |
48 | } |
| 49 | EXPORT_SYMBOL(dump_stack); | |
| 50 | ||
| 51 | /*Stolen from arch/i386/kernel/traps.c */ | |
| 0d0d0ed4 | 52 | static const int kstack_depth_to_print = 24; |
| 1da177e4 LT |
53 | |
| 54 | /* This recently started being used in arch-independent code too, as in | |
| 55 | * kernel/sched.c.*/ | |
| 56 | void show_stack(struct task_struct *task, unsigned long *esp) | |
| 57 | { | |
| 58 | unsigned long *stack; | |
| 59 | int i; | |
| 60 | ||
| 61 | if (esp == NULL) { | |
| b3461034 | 62 | if (task != current && task != NULL) { |
| 1da177e4 | 63 | esp = (unsigned long *) KSTK_ESP(task); |
| 1da177e4 LT |
64 | } else { |
| 65 | esp = (unsigned long *) &esp; | |
| 66 | } | |
| 67 | } | |
| 68 | ||
| 69 | stack = esp; | |
| 70 | for(i = 0; i < kstack_depth_to_print; i++) { | |
| 71 | if (kstack_end(stack)) | |
| 72 | break; | |
| 73 | if (i && ((i % 8) == 0)) | |
| 74 | printk("\n "); | |
| 75 | printk("%08lx ", *stack++); | |
| 76 | } | |
| 77 | ||
| b3461034 | 78 | printk("Call Trace: \n"); |
| fad1c45c | 79 | show_trace(task, esp); |
| 1da177e4 | 80 | } |