/* * arch/sh/kernel/stacktrace.c * * Stack trace management functions * * Copyright (C) 2006 Paul Mundt * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */#include <linux/sched.h>#include <linux/stacktrace.h>#include <linux/thread_info.h>#include <asm/ptrace.h>/* * Save stack-backtrace addresses into a stack_trace buffer. */void save_stack_trace(struct stack_trace *trace, struct task_struct *task){ unsigned long *sp; if (!task) task = current; if (task == current) sp = (unsigned long *)current_stack_pointer; else sp = (unsigned long *)task->thread.sp; while (!kstack_end(sp)) { unsigned long addr = *sp++; if (__kernel_text_address(addr)) { if (trace->skip > 0) trace->skip--; else trace->entries[trace->nr_entries++] = addr; if (trace->nr_entries >= trace->max_entries) break; } }}
/*
* arch/sh/kernel/stacktrace.c
*
* Stack trace management functions
*
* Copyright (C) 2006 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/sched.h>
#include <linux/stacktrace.h>
#include <linux/thread_info.h>
#include <asm/ptrace.h>
/*
* Save stack-backtrace addresses into a stack_trace buffer.
*/
void save_stack_trace(struct stack_trace *trace, struct task_struct *task)
{
unsigned long *sp;
if (!task)
task = current;
if (task == current)
sp = (unsigned long *)current_stack_pointer;
else
sp = (unsigned long *)task->thread.sp;
while (!kstack_end(sp)) {
unsigned long addr = *sp++;
if (__kernel_text_address(addr)) {
if (trace->skip > 0)
trace->skip--;
else
trace->entries[trace->nr_entries++] = addr;
if (trace->nr_entries >= trace->max_entries)
break;
}
}
}