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/****************************************************************************
* common/up_stackdump.c
*
* Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include "chip/chip.h"
#include "os_internal.h"
#include "up_internal.h"
/****************************************************************************
* Definitions
****************************************************************************/
/* Output debug info if stack dump is selected -- even if
* debug is not selected.
*/
#ifdef CONFIG_ARCH_STACKDUMP
# undef lldbg
# define lldbg lowsyslog
#endif
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: up_getsp
****************************************************************************/
/* To be provided */
/****************************************************************************
* Name: up_stackdump
****************************************************************************/
#ifdef CONFIG_ARCH_STACKDUMP
static void up_stackdump(void)
{
struct tcb_s *rtcb = (struct tcb_s*)g_readytorun.head;
chipreg_t sp = up_getsp();
chipreg_t stack_base = (chipreg_t)rtcb->adj_stack_ptr;
chipreg_t stack_size = (chipreg_t)rtcb->adj_stack_size;
lldbg("stack_base: %08x\n", stack_base);
lldbg("stack_size: %08x\n", stack_size);
lldbg("sp: %08x\n", sp);
if (sp >= stack_base || sp < stack_base - stack_size)
{
lldbg("ERROR: Stack pointer is not within allocated stack\n");
return;
}
else
{
chipreg_t stack = sp & ~0x0f;
for (stack = sp & ~0x0f; stack < stack_base; stack += 8*sizeof(chipreg_t))
{
chipreg_t *ptr = (chipreg_t*)stack;
lldbg("%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
stack, ptr[0], ptr[1], ptr[2], ptr[3],
ptr[4], ptr[5], ptr[6], ptr[7]);
}
}
}
#endif
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