mirror of
https://github.com/u-boot/u-boot.git
synced 2024-11-27 22:56:49 +08:00
373 lines
9.7 KiB
C
373 lines
9.7 KiB
C
/*************************************************************************
|
|
| COPYRIGHT (c) 2000 BY ABATRON AG
|
|
|*************************************************************************
|
|
|
|
|
| PROJECT NAME: Linux Image to S-record Conversion Utility
|
|
| FILENAME : img2srec.c
|
|
|
|
|
| COMPILER : GCC
|
|
|
|
|
| TARGET OS : LINUX / UNIX
|
|
| TARGET HW : -
|
|
|
|
|
| PROGRAMMER : Abatron / RD
|
|
| CREATION : 07.07.00
|
|
|
|
|
|*************************************************************************
|
|
|
|
|
| DESCRIPTION :
|
|
|
|
|
| Utility to convert a Linux Boot Image to S-record:
|
|
| ==================================================
|
|
|
|
|
| This command line utility can be used to convert a Linux boot image
|
|
| (zimage.initrd) to S-Record format used for flash programming.
|
|
| This conversion takes care of the special sections "IMAGE" and INITRD".
|
|
|
|
|
| img2srec [-o offset] image > image.srec
|
|
|
|
|
|
|
|
| Build the utility:
|
|
| ==================
|
|
|
|
|
| To build the utility use GCC as follows:
|
|
|
|
|
| gcc img2srec.c -o img2srec
|
|
|
|
|
|
|
|
|*************************************************************************
|
|
|
|
|
|
|
|
| UPDATES :
|
|
|
|
|
| DATE NAME CHANGES
|
|
| -----------------------------------------------------------
|
|
| Latest update
|
|
|
|
|
| 07.07.00 aba Initial release
|
|
|
|
|
|*************************************************************************/
|
|
|
|
/*************************************************************************
|
|
| INCLUDES
|
|
|*************************************************************************/
|
|
|
|
#include "os_support.h"
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
#include <elf.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
|
|
/*************************************************************************
|
|
| FUNCTIONS
|
|
|*************************************************************************/
|
|
|
|
static char* ExtractHex (uint32_t* value, char* getPtr)
|
|
{
|
|
uint32_t num;
|
|
uint32_t digit;
|
|
uint8_t c;
|
|
|
|
while (*getPtr == ' ') getPtr++;
|
|
num = 0;
|
|
for (;;) {
|
|
c = *getPtr;
|
|
if ((c >= '0') && (c <= '9')) digit = (uint32_t)(c - '0');
|
|
else if ((c >= 'A') && (c <= 'F')) digit = (uint32_t)(c - 'A' + 10);
|
|
else if ((c >= 'a') && (c <= 'f')) digit = (uint32_t)(c - 'a' + 10);
|
|
else break;
|
|
num <<= 4;
|
|
num += digit;
|
|
getPtr++;
|
|
} /* for */
|
|
*value = num;
|
|
return getPtr;
|
|
} /* ExtractHex */
|
|
|
|
static char* ExtractDecimal (uint32_t* value, char* getPtr)
|
|
{
|
|
uint32_t num;
|
|
uint32_t digit;
|
|
uint8_t c;
|
|
|
|
while (*getPtr == ' ') getPtr++;
|
|
num = 0;
|
|
for (;;) {
|
|
c = *getPtr;
|
|
if ((c >= '0') && (c <= '9')) digit = (uint32_t)(c - '0');
|
|
else break;
|
|
num *= 10;
|
|
num += digit;
|
|
getPtr++;
|
|
} /* for */
|
|
*value = num;
|
|
return getPtr;
|
|
} /* ExtractDecimal */
|
|
|
|
|
|
static void ExtractNumber (uint32_t* value, char* getPtr)
|
|
{
|
|
bool neg = false;
|
|
|
|
while (*getPtr == ' ') getPtr++;
|
|
if (*getPtr == '-') {
|
|
neg = true;
|
|
getPtr++;
|
|
} /* if */
|
|
if ((*getPtr == '0') && ((*(getPtr+1) == 'x') || (*(getPtr+1) == 'X'))) {
|
|
getPtr +=2;
|
|
(void)ExtractHex(value, getPtr);
|
|
} /* if */
|
|
else {
|
|
(void)ExtractDecimal(value, getPtr);
|
|
} /* else */
|
|
if (neg) *value = -(*value);
|
|
} /* ExtractNumber */
|
|
|
|
|
|
static uint8_t* ExtractWord(uint16_t* value, uint8_t* buffer)
|
|
{
|
|
uint16_t x;
|
|
x = (uint16_t)*buffer++;
|
|
x = (x<<8) + (uint16_t)*buffer++;
|
|
*value = x;
|
|
return buffer;
|
|
} /* ExtractWord */
|
|
|
|
|
|
static uint8_t* ExtractLong(uint32_t* value, uint8_t* buffer)
|
|
{
|
|
uint32_t x;
|
|
x = (uint32_t)*buffer++;
|
|
x = (x<<8) + (uint32_t)*buffer++;
|
|
x = (x<<8) + (uint32_t)*buffer++;
|
|
x = (x<<8) + (uint32_t)*buffer++;
|
|
*value = x;
|
|
return buffer;
|
|
} /* ExtractLong */
|
|
|
|
|
|
static uint8_t* ExtractBlock(uint16_t count, uint8_t* data, uint8_t* buffer)
|
|
{
|
|
while (count--) *data++ = *buffer++;
|
|
return buffer;
|
|
} /* ExtractBlock */
|
|
|
|
|
|
static char* WriteHex(char* pa, uint8_t value, uint16_t* pCheckSum)
|
|
{
|
|
uint16_t temp;
|
|
|
|
static char ByteToHex[] = "0123456789ABCDEF";
|
|
|
|
*pCheckSum += value;
|
|
temp = value / 16;
|
|
*pa++ = ByteToHex[temp];
|
|
temp = value % 16;
|
|
*pa++ = ByteToHex[temp];
|
|
return pa;
|
|
}
|
|
|
|
|
|
static char* BuildSRecord(char* pa, uint16_t sType, uint32_t addr,
|
|
const uint8_t* data, int nCount)
|
|
{
|
|
uint16_t addrLen;
|
|
uint16_t sRLen;
|
|
uint16_t checkSum;
|
|
uint16_t i;
|
|
|
|
switch (sType) {
|
|
case 0:
|
|
case 1:
|
|
case 9:
|
|
addrLen = 2;
|
|
break;
|
|
case 2:
|
|
case 8:
|
|
addrLen = 3;
|
|
break;
|
|
case 3:
|
|
case 7:
|
|
addrLen = 4;
|
|
break;
|
|
default:
|
|
return pa;
|
|
} /* switch */
|
|
|
|
*pa++ = 'S';
|
|
*pa++ = (char)(sType + '0');
|
|
sRLen = addrLen + nCount + 1;
|
|
checkSum = 0;
|
|
pa = WriteHex(pa, (uint8_t)sRLen, &checkSum);
|
|
|
|
/* Write address field */
|
|
for (i = 1; i <= addrLen; i++) {
|
|
pa = WriteHex(pa, (uint8_t)(addr >> (8 * (addrLen - i))), &checkSum);
|
|
} /* for */
|
|
|
|
/* Write code/data fields */
|
|
for (i = 0; i < nCount; i++) {
|
|
pa = WriteHex(pa, *data++, &checkSum);
|
|
} /* for */
|
|
|
|
/* Write checksum field */
|
|
checkSum = ~checkSum;
|
|
pa = WriteHex(pa, (uint8_t)checkSum, &checkSum);
|
|
*pa++ = '\0';
|
|
return pa;
|
|
}
|
|
|
|
|
|
static void ConvertELF(char* fileName, uint32_t loadOffset)
|
|
{
|
|
FILE* file;
|
|
int i;
|
|
int rxCount;
|
|
uint8_t rxBlock[1024];
|
|
uint32_t loadSize;
|
|
uint32_t firstAddr;
|
|
uint32_t loadAddr;
|
|
uint32_t loadDiff = 0;
|
|
Elf32_Ehdr elfHeader;
|
|
Elf32_Shdr sectHeader[32];
|
|
uint8_t* getPtr;
|
|
char srecLine[128];
|
|
char *hdr_name;
|
|
|
|
|
|
/* open file */
|
|
if ((file = fopen(fileName,"rb")) == NULL) {
|
|
fprintf (stderr, "Can't open %s: %s\n", fileName, strerror(errno));
|
|
return;
|
|
} /* if */
|
|
|
|
/* read ELF header */
|
|
rxCount = fread(rxBlock, 1, sizeof elfHeader, file);
|
|
getPtr = ExtractBlock(sizeof elfHeader.e_ident, elfHeader.e_ident, rxBlock);
|
|
getPtr = ExtractWord(&elfHeader.e_type, getPtr);
|
|
getPtr = ExtractWord(&elfHeader.e_machine, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)&elfHeader.e_version, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)&elfHeader.e_entry, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)&elfHeader.e_phoff, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)&elfHeader.e_shoff, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)&elfHeader.e_flags, getPtr);
|
|
getPtr = ExtractWord(&elfHeader.e_ehsize, getPtr);
|
|
getPtr = ExtractWord(&elfHeader.e_phentsize, getPtr);
|
|
getPtr = ExtractWord(&elfHeader.e_phnum, getPtr);
|
|
getPtr = ExtractWord(&elfHeader.e_shentsize, getPtr);
|
|
getPtr = ExtractWord(&elfHeader.e_shnum, getPtr);
|
|
getPtr = ExtractWord(&elfHeader.e_shstrndx, getPtr);
|
|
if ( (rxCount != sizeof elfHeader)
|
|
|| (elfHeader.e_ident[0] != ELFMAG0)
|
|
|| (elfHeader.e_ident[1] != ELFMAG1)
|
|
|| (elfHeader.e_ident[2] != ELFMAG2)
|
|
|| (elfHeader.e_ident[3] != ELFMAG3)
|
|
|| (elfHeader.e_type != ET_EXEC)
|
|
) {
|
|
fclose(file);
|
|
fprintf (stderr, "*** illegal file format\n");
|
|
return;
|
|
} /* if */
|
|
|
|
/* read all section headers */
|
|
fseek(file, elfHeader.e_shoff, SEEK_SET);
|
|
for (i = 0; i < elfHeader.e_shnum; i++) {
|
|
rxCount = fread(rxBlock, 1, sizeof sectHeader[0], file);
|
|
getPtr = ExtractLong((uint32_t *)§Header[i].sh_name, rxBlock);
|
|
getPtr = ExtractLong((uint32_t *)§Header[i].sh_type, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)§Header[i].sh_flags, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)§Header[i].sh_addr, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)§Header[i].sh_offset, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)§Header[i].sh_size, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)§Header[i].sh_link, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)§Header[i].sh_info, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)§Header[i].sh_addralign, getPtr);
|
|
getPtr = ExtractLong((uint32_t *)§Header[i].sh_entsize, getPtr);
|
|
if (rxCount != sizeof sectHeader[0]) {
|
|
fclose(file);
|
|
fprintf (stderr, "*** illegal file format\n");
|
|
return;
|
|
} /* if */
|
|
} /* for */
|
|
|
|
if ((hdr_name = strrchr(fileName, '/')) == NULL) {
|
|
hdr_name = fileName;
|
|
} else {
|
|
++hdr_name;
|
|
}
|
|
/* write start record */
|
|
(void)BuildSRecord(srecLine, 0, 0, (uint8_t *)hdr_name, strlen(hdr_name));
|
|
printf("%s\r\n",srecLine);
|
|
|
|
/* write data records */
|
|
firstAddr = ~0;
|
|
loadAddr = 0;
|
|
for (i = 0; i < elfHeader.e_shnum; i++) {
|
|
if ( (sectHeader[i].sh_type == SHT_PROGBITS)
|
|
&& (sectHeader[i].sh_size != 0)
|
|
) {
|
|
loadSize = sectHeader[i].sh_size;
|
|
if (sectHeader[i].sh_flags != 0) {
|
|
loadAddr = sectHeader[i].sh_addr;
|
|
loadDiff = loadAddr - sectHeader[i].sh_offset;
|
|
} /* if */
|
|
else {
|
|
loadAddr = sectHeader[i].sh_offset + loadDiff;
|
|
} /* else */
|
|
|
|
if (loadAddr < firstAddr)
|
|
firstAddr = loadAddr;
|
|
|
|
/* build s-records */
|
|
loadSize = sectHeader[i].sh_size;
|
|
fseek(file, sectHeader[i].sh_offset, SEEK_SET);
|
|
while (loadSize) {
|
|
rxCount = fread(rxBlock, 1, (loadSize > 32) ? 32 : loadSize, file);
|
|
if (rxCount < 0) {
|
|
fclose(file);
|
|
fprintf (stderr, "*** illegal file format\n");
|
|
return;
|
|
} /* if */
|
|
(void)BuildSRecord(srecLine, 3, loadAddr + loadOffset, rxBlock, rxCount);
|
|
loadSize -= rxCount;
|
|
loadAddr += rxCount;
|
|
printf("%s\r\n",srecLine);
|
|
} /* while */
|
|
} /* if */
|
|
} /* for */
|
|
|
|
/* add end record */
|
|
(void)BuildSRecord(srecLine, 7, firstAddr + loadOffset, 0, 0);
|
|
printf("%s\r\n",srecLine);
|
|
fclose(file);
|
|
} /* ConvertELF */
|
|
|
|
|
|
/*************************************************************************
|
|
| MAIN
|
|
|*************************************************************************/
|
|
|
|
int main( int argc, char *argv[ ])
|
|
{
|
|
uint32_t offset;
|
|
|
|
if (argc == 2) {
|
|
ConvertELF(argv[1], 0);
|
|
} /* if */
|
|
else if ((argc == 4) && (strcmp(argv[1], "-o") == 0)) {
|
|
ExtractNumber(&offset, argv[2]);
|
|
ConvertELF(argv[3], offset);
|
|
} /* if */
|
|
else {
|
|
fprintf (stderr, "Usage: img2srec [-o offset] <image>\n");
|
|
} /* if */
|
|
|
|
return 0;
|
|
} /* main */
|