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incubator-nuttx/examples/nsh/nsh_dbgcmds.c

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/****************************************************************************
* examples/nsh/dbg_proccmds.c
*
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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 <sys/types.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "nsh.h"
/****************************************************************************
* Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
struct dbgmem_s
{
boolean dm_write; /* TRUE: perfrom write operation */
void *dm_addr; /* Address to access */
uint32 dm_value; /* Value to write */
unsigned int dm_count; /* The number of bytes to access */
};
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: mem_parse
****************************************************************************/
int mem_parse(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv,
struct dbgmem_s *mem)
{
char *pcvalue = strchr(argv[1], '=');
unsigned long lvalue = 0;
/* Check if we are writing a value */
if (pcvalue)
{
*pcvalue = '\0';
pcvalue++;
lvalue = (unsigned long)strtol(pcvalue, NULL, 16);
if (lvalue > 0xffffffff)
{
return -EINVAL;
}
mem->dm_write = TRUE;
mem->dm_value = (uint32)lvalue;
}
else
{
mem->dm_write = FALSE;
mem->dm_value = 0;
}
/* Get the address to be accessed */
mem->dm_addr = (void*)strtol(argv[1], NULL, 16);
/* Get the number of bytes to access */
if (argc > 2)
{
mem->dm_count = (unsigned int)strtol(argv[2], NULL, 16);
}
else
{
mem->dm_count = 1;
}
return OK;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: cmd_mb
****************************************************************************/
int cmd_mb(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
struct dbgmem_s mem;
volatile ubyte *ptr;
int ret;
int i;
ret = mem_parse(vtbl, argc, argv, &mem);
if (ret == 0)
{
/* Loop for the number of requested bytes */
for (i = 0, ptr = (volatile ubyte*)mem.dm_addr; i < mem.dm_count; i++, ptr++)
{
/* Print the value at the address */
nsh_output(vtbl, " %p = 0x%02x", ptr, *ptr);
/* Are we supposed to write a value to this address? */
if (mem.dm_write)
{
/* Yes, was the supplied value within range? */
if (mem.dm_value > 0x000000ff)
{
nsh_output(vtbl, g_fmtargrange, argv[0]);
return ERROR;
}
/* Write the value and re-read the address so that we print its
* current value (if the address is a process address, then the
* value read might not necessarily be the value written).
*/
*ptr = (ubyte)mem.dm_value;
nsh_output(vtbl, " -> 0x%02x", *ptr);
}
/* Make sure we end it with a newline */
nsh_output(vtbl, "\n", *ptr);
}
}
return ret;
}
/****************************************************************************
* Name: cmd_mh
****************************************************************************/
int cmd_mh(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
struct dbgmem_s mem;
volatile uint16 *ptr;
int ret;
int i;
ret = mem_parse(vtbl, argc, argv, &mem);
if (ret == 0)
{
/* Loop for the number of requested bytes */
for (i = 0, ptr = (volatile uint16*)mem.dm_addr; i < mem.dm_count; i += 2, ptr++)
{
/* Print the value at the address */
nsh_output(vtbl, " %p = 0x%04x", ptr, *ptr);
/* Are we supposed to write a value to this address? */
if (mem.dm_write)
{
/* Yes, was the supplied value within range? */
if (mem.dm_value > 0x0000ffff)
{
nsh_output(vtbl, g_fmtargrange, argv[0]);
return ERROR;
}
/* Write the value and re-read the address so that we print its
* current value (if the address is a process address, then the
* value read might not necessarily be the value written).
*/
*ptr = (uint16)mem.dm_value;
nsh_output(vtbl, " -> 0x%04x", *ptr);
}
/* Make sure we end it with a newline */
nsh_output(vtbl, "\n", *ptr);
}
}
return ret;
}
/****************************************************************************
* Name: cmd_mw
****************************************************************************/
int cmd_mw(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
struct dbgmem_s mem;
volatile uint32 *ptr;
int ret;
int i;
ret = mem_parse(vtbl, argc, argv, &mem);
if (ret == 0)
{
/* Loop for the number of requested bytes */
for (i = 0, ptr = (volatile uint32*)mem.dm_addr; i < mem.dm_count; i += 4, ptr++)
{
/* Print the value at the address */
nsh_output(vtbl, " %p = 0x%08x", ptr, *ptr);
/* Are we supposed to write a value to this address? */
if (mem.dm_write)
{
/* Write the value and re-read the address so that we print its
* current value (if the address is a process address, then the
* value read might not necessarily be the value written).
*/
*ptr = mem.dm_value;
nsh_output(vtbl, " -> 0x%08x", *ptr);
}
/* Make sure we end it with a newline */
nsh_output(vtbl, "\n", *ptr);
}
}
return ret;
}
/****************************************************************************
* Name: cmd_mem
****************************************************************************/
int cmd_mem(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
struct mallinfo mem;
#ifdef CONFIG_CAN_PASS_STRUCTS
mem = mallinfo();
#else
(void)mallinfo(&mem);
#endif
nsh_output(vtbl, " arena: %8x\n", mem.arena);
nsh_output(vtbl, " ordblks: %8d\n", mem.ordblks);
nsh_output(vtbl, " mxordblk: %8x\n", mem.mxordblk);
nsh_output(vtbl, " uordblks: %8x\n", mem.uordblks);
nsh_output(vtbl, " fordblks: %8x\n", mem.fordblks);
return OK;
}
/****************************************************************************
* Name: nsh_dumpbuffer
****************************************************************************/
void nsh_dumpbuffer(FAR struct nsh_vtbl_s *vtbl, const char *msg,
const char *buffer, ssize_t nbytes)
{
char line[128];
int ch;
int i;
int j;
nsh_output(vtbl, "%s:\n", msg);
for (i = 0; i < nbytes; i += 16)
{
sprintf(line, "%04x: ", i);
for ( j = 0; j < 16; j++)
{
if (i + j < nbytes)
{
sprintf(&line[strlen(line)], "%02x ", buffer[i+j] );
}
else
{
strcpy(&line[strlen(line)], " ");
}
}
for ( j = 0; j < 16; j++)
{
if (i + j < nbytes)
{
ch = buffer[i+j];
sprintf(&line[strlen(line)], "%c", ch >= 0x20 && ch <= 0x7e ? ch : '.');
}
}
nsh_output(vtbl, "%s\n", line);
}
}
/****************************************************************************
* Name: cmd_xd
****************************************************************************/
int cmd_xd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
char *addr;
char *endptr;
int nbytes;
addr = (char*)strtol(argv[1], &endptr, 16);
if (argv[0][0] == '\0' || *endptr != '\0')
{
return ERROR;
}
nbytes = (int)strtol(argv[2], &endptr, 0);
if (argv[0][0] == '\0' || *endptr != '\0' || nbytes < 0)
{
return ERROR;
}
nsh_dumpbuffer(vtbl, "Hex dump", addr, nbytes);
return OK;
}
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