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Two 'peek' and 'poke' commands for reading and writing directly to memory

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This commit is contained in:
adamdunkels 2010-02-02 15:28:52 +00:00
parent 6240db4170
commit 7ed2af70f9
4 changed files with 180 additions and 2 deletions
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2
apps/shell/Makefile.shell
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@ -10,7 +10,7 @@ shell_src = shell.c shell-reboot.c \
shell-rime-sendcmd.c shell-download.c shell-rime-neighbors.c \
shell-rime-unicast.c \
shell-tweet.c \
shell-netperf.c
shell-netperf.c shell-memdebug.c
shell_dsc = shell-dsc.c
APPS += webbrowser

129
apps/shell/shell-memdebug.c Normal file
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@ -0,0 +1,129 @@
/*
* Copyright (c) 2008, Swedish Institute of Computer Science.
* All rights reserved.
*
* 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
*
* This file is part of the Contiki operating system.
*
* $Id: shell-memdebug.c,v 1.1 2010/02/02 15:28:53 adamdunkels Exp $
*/
/**
* \file
* Shell commands for memory debugging
* \author
* Adam Dunkels <adam@sics.se>
* Joakim Eriksson <joakime@sics.se>
*/
#include "contiki.h"
#include "shell-memdebug.h"
#include <stdio.h>
#include <string.h>
/*---------------------------------------------------------------------------*/
PROCESS(shell_poke_process, "poke");
SHELL_COMMAND(poke_command,
"poke",
"poke <address> <byte>: write byte <byte> to address <address>",
&shell_poke_process);
PROCESS(shell_peek_process, "peek");
SHELL_COMMAND(peek_command,
"peek",
"peek <address>: read a byte from address <address>",
&shell_peek_process);
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_poke_process, ev, data)
{
uint8_t *address;
uint8_t byte;
const char *args, *next;
PROCESS_BEGIN();
args = data;
if(args == NULL) {
shell_output_str(&poke_command, "usage 0", "");
PROCESS_EXIT();
}
address = (uint8_t *)(int)shell_strtolong(args, &next);
if(next == args) {
shell_output_str(&poke_command, "usage 1", "");
PROCESS_EXIT();
}
args = next;
byte = shell_strtolong(args, &next);
if(next == args) {
shell_output_str(&poke_command, "usage 2", "");
PROCESS_EXIT();
}
printf("address %p byte 0x%02x\n", address, byte);
*address = byte;
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_peek_process, ev, data)
{
uint8_t *address;
const char *args, *next;
char buf[32];
PROCESS_BEGIN();
args = data;
if(args == NULL) {
shell_output_str(&peek_command, "usage 0", "");
PROCESS_EXIT();
}
address = (uint8_t *)(int)shell_strtolong(args, &next);
if(next == args) {
shell_output_str(&peek_command, "usage 1", "");
PROCESS_EXIT();
}
snprintf(buf, sizeof(buf), "0x%02x", *address);
shell_output_str(&peek_command, buf, "");
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
void
shell_memdebug_init(void)
{
shell_register_command(&poke_command);
shell_register_command(&peek_command);
}
/*---------------------------------------------------------------------------*/

48
apps/shell/shell-memdebug.h Normal file
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@ -0,0 +1,48 @@
/*
* Copyright (c) 2008, Swedish Institute of Computer Science.
* All rights reserved.
*
* 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
*
* This file is part of the Contiki operating system.
*
* $Id: shell-memdebug.h,v 1.1 2010/02/02 15:28:53 adamdunkels Exp $
*/
/**
* \file
* Shell commands for memory debugging
* \author
* Adam Dunkels <adam@sics.se>
*/
#ifndef __SHELL_MEMDEBUG_H__
#define __SHELL_MEMDEBUG_H__
#include "shell.h"
void shell_memdebug_init(void);
#endif /* __SHELL_MEMDEBUG_H__ */

3
apps/shell/shell.h
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@ -48,7 +48,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: shell.h,v 1.20 2010/01/31 19:35:12 adamdunkels Exp $
* $Id: shell.h,v 1.21 2010/02/02 15:28:53 adamdunkels Exp $
*/
/**
@ -361,6 +361,7 @@ struct shell_input {
#include "shell-file.h"
#include "shell-httpd.h"
#include "shell-irc.h"
#include "shell-memdebug.h"
#include "shell-netfile.h"
#include "shell-netperf.h"
#include "shell-netstat.h"