89 lines
2.0 KiB
C
89 lines
2.0 KiB
C
/*
|
|
* Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
|
|
* Licensed under the GPL
|
|
*/
|
|
|
|
#include "linux/config.h"
|
|
#include "linux/sched.h"
|
|
#include "linux/kernel.h"
|
|
#include "linux/module.h"
|
|
#include "linux/kallsyms.h"
|
|
#include "asm/page.h"
|
|
#include "asm/processor.h"
|
|
#include "sysrq.h"
|
|
#include "user_util.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("Call Trace: \n");
|
|
while (((long) stack & (THREAD_SIZE-1)) != 0) {
|
|
addr = *stack;
|
|
if (__kernel_text_address(addr)) {
|
|
printk("%08lx: [<%08lx>]", (unsigned long) stack, addr);
|
|
print_symbol(" %s", addr);
|
|
printk("\n");
|
|
}
|
|
stack++;
|
|
}
|
|
printk("\n");
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* stack dumps generator - this is used by arch-independent code.
|
|
* And this is identical to i386 currently.
|
|
*/
|
|
void dump_stack(void)
|
|
{
|
|
unsigned long stack;
|
|
|
|
show_trace(current, &stack);
|
|
}
|
|
EXPORT_SYMBOL(dump_stack);
|
|
|
|
/*Stolen from arch/i386/kernel/traps.c */
|
|
static int kstack_depth_to_print = 24;
|
|
|
|
/* This recently started being used in arch-independent code too, as in
|
|
* kernel/sched.c.*/
|
|
void show_stack(struct task_struct *task, unsigned long *esp)
|
|
{
|
|
unsigned long *stack;
|
|
int i;
|
|
|
|
if (esp == NULL) {
|
|
if (task != current && task != NULL) {
|
|
/* XXX: Isn't this bogus? I.e. isn't this the
|
|
* *userspace* stack of this task? If not so, use this
|
|
* even when task == current (as in i386).
|
|
*/
|
|
esp = (unsigned long *) KSTK_ESP(task);
|
|
/* Which one? No actual difference - just coding style.*/
|
|
//esp = (unsigned long *) PT_REGS_IP(&task->thread.regs);
|
|
} 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("\n ");
|
|
printk("%08lx ", *stack++);
|
|
}
|
|
|
|
printk("Call Trace: \n");
|
|
show_trace(current, esp);
|
|
}
|