68 lines
1.2 KiB
C
68 lines
1.2 KiB
C
/*
|
|
* File : backtrace.c
|
|
* This file is part of RT-Thread RTOS
|
|
* COPYRIGHT (C) 2006, 2008 RT-Thread Development Team
|
|
*
|
|
* The license and distribution terms for this file may be
|
|
* found in the file LICENSE in this distribution or at
|
|
* http://openlab.rt-thread.com/license/LICENSE
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2008-07-29 Bernard first version from QiuYi implementation
|
|
*/
|
|
|
|
#include <rtthread.h>
|
|
|
|
#ifdef __GNUC__
|
|
/*
|
|
-->High Address,Stack Top
|
|
PC<-----|
|
|
LR |
|
|
IP |
|
|
FP |
|
|
...... |
|
|
PC<-| |
|
|
LR | |
|
|
IP | |
|
|
FP---|-- |
|
|
...... |
|
|
PC |
|
|
LR |
|
|
IP |
|
|
FP---
|
|
-->Low Address,Stack Bottom
|
|
*/
|
|
void rt_hw_backtrace(rt_uint32_t *fp, rt_uint32_t thread_entry)
|
|
{
|
|
rt_uint32_t i, pc, func_entry;
|
|
|
|
pc = *fp;
|
|
rt_kprintf("[0x%x]\n", pc-0xC);
|
|
|
|
for(i=0; i<10; i++)
|
|
{
|
|
fp = (rt_uint32_t *)*(fp - 3);
|
|
pc = *fp ;
|
|
|
|
func_entry = pc - 0xC;
|
|
|
|
if(func_entry <= 0x30000000) break;
|
|
|
|
if((func_entry == thread_entry))
|
|
{
|
|
rt_kprintf("EntryPoint:0x%x\n", func_entry);
|
|
|
|
break;
|
|
}
|
|
|
|
rt_kprintf("[0x%x]\n", func_entry);
|
|
}
|
|
}
|
|
#else
|
|
void rt_hw_backtrace(rt_uint32_t *fp, rt_uint32_t thread_entry)
|
|
{
|
|
/* old compiler implementation */
|
|
}
|
|
#endif
|