Two 'peek' and 'poke' commands for reading and writing directly to memory
This commit is contained in:
adamdunkels
parent
6240db4170
commit
7ed2af70f9
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@ -10,7 +10,7 @@ shell_src = shell.c shell-reboot.c \
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shell-rime-sendcmd.c shell-download.c shell-rime-neighbors.c \
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shell-rime-unicast.c \
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shell-tweet.c \
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shell-netperf.c
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shell-netperf.c shell-memdebug.c
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shell_dsc = shell-dsc.c
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APPS += webbrowser
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129
apps/shell/shell-memdebug.c
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129
apps/shell/shell-memdebug.c
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@ -0,0 +1,129 @@
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/*
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* Copyright (c) 2008, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: shell-memdebug.c,v 1.1 2010/02/02 15:28:53 adamdunkels Exp $
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*/
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/**
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* \file
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* Shell commands for memory debugging
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* \author
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* Adam Dunkels <adam@sics.se>
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* Joakim Eriksson <joakime@sics.se>
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*/
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#include "contiki.h"
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#include "shell-memdebug.h"
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#include <stdio.h>
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#include <string.h>
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/*---------------------------------------------------------------------------*/
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PROCESS(shell_poke_process, "poke");
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SHELL_COMMAND(poke_command,
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"poke",
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"poke <address> <byte>: write byte <byte> to address <address>",
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&shell_poke_process);
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PROCESS(shell_peek_process, "peek");
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SHELL_COMMAND(peek_command,
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"peek",
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"peek <address>: read a byte from address <address>",
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&shell_peek_process);
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(shell_poke_process, ev, data)
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{
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uint8_t *address;
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uint8_t byte;
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const char *args, *next;
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PROCESS_BEGIN();
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args = data;
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if(args == NULL) {
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shell_output_str(&poke_command, "usage 0", "");
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PROCESS_EXIT();
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}
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address = (uint8_t *)(int)shell_strtolong(args, &next);
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if(next == args) {
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shell_output_str(&poke_command, "usage 1", "");
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PROCESS_EXIT();
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}
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args = next;
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byte = shell_strtolong(args, &next);
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if(next == args) {
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shell_output_str(&poke_command, "usage 2", "");
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PROCESS_EXIT();
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}
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printf("address %p byte 0x%02x\n", address, byte);
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*address = byte;
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(shell_peek_process, ev, data)
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{
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uint8_t *address;
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const char *args, *next;
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char buf[32];
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PROCESS_BEGIN();
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args = data;
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if(args == NULL) {
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shell_output_str(&peek_command, "usage 0", "");
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PROCESS_EXIT();
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}
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address = (uint8_t *)(int)shell_strtolong(args, &next);
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if(next == args) {
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shell_output_str(&peek_command, "usage 1", "");
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PROCESS_EXIT();
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}
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snprintf(buf, sizeof(buf), "0x%02x", *address);
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shell_output_str(&peek_command, buf, "");
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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void
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shell_memdebug_init(void)
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{
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shell_register_command(&poke_command);
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shell_register_command(&peek_command);
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}
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/*---------------------------------------------------------------------------*/
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48
apps/shell/shell-memdebug.h
Normal file
48
apps/shell/shell-memdebug.h
Normal file
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@ -0,0 +1,48 @@
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/*
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* Copyright (c) 2008, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: shell-memdebug.h,v 1.1 2010/02/02 15:28:53 adamdunkels Exp $
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*/
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/**
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* \file
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* Shell commands for memory debugging
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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#ifndef __SHELL_MEMDEBUG_H__
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#define __SHELL_MEMDEBUG_H__
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#include "shell.h"
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void shell_memdebug_init(void);
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#endif /* __SHELL_MEMDEBUG_H__ */
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@ -48,7 +48,7 @@
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: shell.h,v 1.20 2010/01/31 19:35:12 adamdunkels Exp $
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* $Id: shell.h,v 1.21 2010/02/02 15:28:53 adamdunkels Exp $
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*/
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/**
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@ -361,6 +361,7 @@ struct shell_input {
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#include "shell-file.h"
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#include "shell-httpd.h"
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#include "shell-irc.h"
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#include "shell-memdebug.h"
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#include "shell-netfile.h"
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#include "shell-netperf.h"
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#include "shell-netstat.h"
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