| /* |
| * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
| * Licensed under the GPL |
| */ |
| |
| #include <linux/kallsyms.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/sched.h> |
| #include <asm/sysrq.h> |
| |
| /* Catch non-i386 SUBARCH's. */ |
| #if !defined(CONFIG_UML_X86) || defined(CONFIG_64BIT) |
| void show_trace(struct task_struct *task, unsigned long * stack) |
| { |
| unsigned long addr; |
| |
| if (!stack) { |
| stack = (unsigned long*) &stack; |
| WARN_ON(1); |
| } |
| |
| printk(KERN_INFO "Call Trace: \n"); |
| while (((long) stack & (THREAD_SIZE-1)) != 0) { |
| addr = *stack; |
| if (__kernel_text_address(addr)) { |
| printk(KERN_INFO "%08lx: [<%08lx>]", |
| (unsigned long) stack, addr); |
| print_symbol(KERN_CONT " %s", addr); |
| printk(KERN_CONT "\n"); |
| } |
| stack++; |
| } |
| printk(KERN_INFO "\n"); |
| } |
| #endif |
| |
| /*Stolen from arch/i386/kernel/traps.c */ |
| static const int kstack_depth_to_print = 24; |
| |
| /* This recently started being used in arch-independent code too, as in |
| * kernel/sched/core.c.*/ |
| void show_stack(struct task_struct *task, unsigned long *esp) |
| { |
| unsigned long *stack; |
| int i; |
| |
| if (esp == NULL) { |
| if (task != current && task != NULL) { |
| esp = (unsigned long *) KSTK_ESP(task); |
| } else { |
| esp = (unsigned long *) &esp; |
| } |
| } |
| |
| stack = esp; |
| for (i = 0; i < kstack_depth_to_print; i++) { |
| if (kstack_end(stack)) |
| break; |
| if (i && ((i % 8) == 0)) |
| printk(KERN_INFO " "); |
| printk(KERN_CONT "%08lx ", *stack++); |
| } |
| |
| show_trace(task, esp); |
| } |