mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-23 16:29:34 +00:00
117 lines
4.3 KiB
C
117 lines
4.3 KiB
C
/*
|
|
* Copyright (c) 2005, 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: elfloader-msp430.c,v 1.5 2009/03/26 12:25:05 fros4943 Exp $
|
|
*/
|
|
#include "elfloader-arch.h"
|
|
|
|
#include "dev/flash.h"
|
|
|
|
static uint16_t datamemory_aligned[ELFLOADER_DATAMEMORY_SIZE/2+1];
|
|
static uint8_t* datamemory = (uint8_t *)datamemory_aligned;
|
|
#if ELFLOADER_CONF_TEXT_IN_ROM
|
|
static const char textmemory[ELFLOADER_TEXTMEMORY_SIZE] = {0};
|
|
#else /* ELFLOADER_CONF_TEXT_IN_ROM */
|
|
static char textmemory[ELFLOADER_TEXTMEMORY_SIZE];
|
|
#endif /* ELFLOADER_CONF_TEXT_IN_ROM */
|
|
/*---------------------------------------------------------------------------*/
|
|
void *
|
|
elfloader_arch_allocate_ram(int size)
|
|
{
|
|
return datamemory;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void *
|
|
elfloader_arch_allocate_rom(int size)
|
|
{
|
|
#if ELFLOADER_CONF_TEXT_IN_ROM
|
|
/* Return an 512-byte aligned pointer. */
|
|
return (char *)
|
|
((unsigned long)&textmemory[0] & 0xfffffe00) +
|
|
(((unsigned long)&textmemory[0] & 0x1ff) == 0? 0: 0x200);
|
|
#else /* ELFLOADER_CONF_TEXT_IN_ROM */
|
|
return textmemory;
|
|
#endif /* ELFLOADER_CONF_TEXT_IN_ROM */
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
#define READSIZE 32
|
|
void
|
|
elfloader_arch_write_rom(int fd, unsigned short textoff, unsigned int size, char *mem)
|
|
{
|
|
#if ELFLOADER_CONF_TEXT_IN_ROM
|
|
int i;
|
|
unsigned int ptr;
|
|
unsigned short *flashptr;
|
|
|
|
flash_setup();
|
|
|
|
flashptr = (unsigned short *)mem;
|
|
|
|
cfs_seek(fd, textoff, CFS_SEEK_SET);
|
|
for(ptr = 0; ptr < size; ptr += READSIZE) {
|
|
|
|
/* Read data from file into RAM. */
|
|
cfs_read(fd, (unsigned char *)datamemory, READSIZE);
|
|
|
|
/* Clear flash page on 512 byte boundary. */
|
|
if((((unsigned short)flashptr) & 0x01ff) == 0) {
|
|
flash_clear(flashptr);
|
|
}
|
|
|
|
/* Burn data from RAM into flash ROM. Flash is burned one 16-bit
|
|
word at a time, so we need to be careful when incrementing
|
|
pointers. The flashptr is already a short pointer, so
|
|
incrementing it by one will actually increment the address by
|
|
two. */
|
|
for(i = 0; i < READSIZE / 2; ++i) {
|
|
flash_write(flashptr, ((unsigned short *)datamemory)[i]);
|
|
++flashptr;
|
|
}
|
|
}
|
|
|
|
flash_done();
|
|
#else /* ELFLOADER_CONF_TEXT_IN_ROM */
|
|
cfs_seek(fd, textoff, CFS_SEEK_SET);
|
|
cfs_read(fd, (unsigned char *)mem, size);
|
|
#endif /* ELFLOADER_CONF_TEXT_IN_ROM */
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
elfloader_arch_relocate(int fd, unsigned int sectionoffset,
|
|
char *sectionaddr,
|
|
struct elf32_rela *rela, char *addr)
|
|
{
|
|
addr += rela->r_addend;
|
|
|
|
cfs_seek(fd, sectionoffset + rela->r_offset, CFS_SEEK_SET);
|
|
cfs_write(fd, (char *)&addr, 2);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|