symtab-avr.c

00001 /*
00002  * Copyright (c) 2005, Swedish Institute of Computer Science
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  * 3. Neither the name of the Institute nor the names of its contributors
00014  *    may be used to endorse or promote products derived from this software
00015  *    without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
00018  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
00021  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00023  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00024  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00025  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00026  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00027  * SUCH DAMAGE.
00028  *
00029  * This file is part of the Contiki operating system.
00030  *
00031  * @(#)$Id: symtab-avr.c,v 1.3 2007/01/24 16:13:50 adamdunkels Exp $
00032  */
00033 
00034 #include <stdio.h>
00035 #include <string.h>
00036 #include <avr/pgmspace.h>
00037 #include "symtab.h"
00038 #include "loader/symbols.h"
00039 
00040 #define SYMTAB_CONF_BINARY_SEARCH 0
00041 
00042 /*---------------------------------------------------------------------------*/
00043 void *
00044 symtab_lookup(const char *name)
00045 {
00046   uint16_t i=0;
00047   void* name_addr;
00048 
00049   for(name_addr = (void*)pgm_read_word(&symbols[0].name);
00050       name_addr != NULL;
00051       name_addr = (void*)pgm_read_word(&symbols[++i].name)) {
00052 
00053     if(strcmp_P (name, (const char*)name_addr) == 0) {
00054       return (void*)pgm_read_word(&symbols[i].value);
00055     }
00056   }
00057   return NULL;
00058 }
00059 
00060 /*---------------------------------------------------------------------------*/
00061 
00062 #if 0
00063 #define SYMTAB_PRINT_BUFFER_SIZE 30
00064 void
00065 symtab_print (void)
00066 {
00067   uint16_t i=0;
00068   const char* name_addr;
00069   char buf[SYMTAB_PRINT_BUFFER_SIZE];
00070 
00071   for(name_addr = (const char*)pgm_read_word(&symbols[0].name);
00072       name_addr != NULL;
00073       name_addr = pgm_read_word(&symbols[++i].name)) {
00074 
00075     strncpy_P (buf, (const char*)name_addr, SYMTAB_PRINT_BUFFER_SIZE);
00076     buf [SYMTAB_PRINT_BUFFER_SIZE - 1] = '\0';
00077     uint16_t value = pgm_read_word(&symbols[i].value);
00078     printf ("%s -> 0x%x\n", buf, value);
00079   }
00080 }
00081 #endif

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