{
image_ihex_t *ihex = image->type_private;
fileio_t *fileio = &ihex->fileio;
- u32 raw_bytes_read, raw_bytes;
- int retval;
u32 full_address = 0x0;
- char *buffer = malloc(fileio->size);
u32 cooked_bytes;
int i;
+ char lpszLine[1023];
/* we can't determine the number of sections that we'll have to create ahead of time,
* so we locally hold them until parsing is finished */
image_section_t section[IMAGE_MAX_SECTIONS];
-
- if ((retval = fileio_read(fileio, fileio->size, (u8*)buffer, &raw_bytes_read)) != ERROR_OK)
- {
- free(buffer);
- ERROR("failed buffering IHEX file, read failed");
- return ERROR_FILEIO_OPERATION_FAILED;
- }
-
- if (raw_bytes_read != fileio->size)
- {
- free(buffer);
- ERROR("failed buffering complete IHEX file, only partially read");
- return ERROR_FILEIO_OPERATION_FAILED;
- }
ihex->buffer = malloc(fileio->size >> 1);
- raw_bytes = 0x0;
cooked_bytes = 0x0;
image->num_sections = 0;
section[image->num_sections].private = &ihex->buffer[cooked_bytes];
section[image->num_sections].base_address = 0x0;
section[image->num_sections].size = 0x0;
section[image->num_sections].flags = 0;
- while (raw_bytes < raw_bytes_read)
+
+ while (fileio_fgets(fileio, 1023, lpszLine) == ERROR_OK)
{
u32 count;
u32 address;
u32 record_type;
u32 checksum;
u8 cal_checksum = 0;
+ u32 bytes_read = 0;
- if (sscanf(&buffer[raw_bytes], ":%2x%4x%2x", &count, &address, &record_type) != 3)
+ if (sscanf(&lpszLine[bytes_read], ":%2x%4x%2x", &count, &address, &record_type) != 3)
{
return ERROR_IMAGE_FORMAT_ERROR;
}
- raw_bytes += 9;
+ bytes_read += 9;
cal_checksum += (u8)count;
cal_checksum += (u8)(address >> 8);
while (count-- > 0)
{
- sscanf(&buffer[raw_bytes], "%2hhx", &ihex->buffer[cooked_bytes]);
+ sscanf(&lpszLine[bytes_read], "%2x", (u32*)&ihex->buffer[cooked_bytes]);
cal_checksum += (u8)ihex->buffer[cooked_bytes];
- raw_bytes += 2;
+ bytes_read += 2;
cooked_bytes += 1;
section[image->num_sections].size += 1;
full_address++;
image->sections[i].flags = section[i].flags;
}
- free(buffer);
return ERROR_OK;
}
+ else if (record_type == 2) /* Linear Address Record */
+ {
+ u16 upper_address;
+
+ sscanf(&lpszLine[bytes_read], "%4hx", &upper_address);
+ cal_checksum += (u8)(upper_address >> 8);
+ cal_checksum += (u8)upper_address;
+ bytes_read += 4;
+
+ if ((full_address >> 4) != upper_address)
+ {
+ /* we encountered a nonconsecutive location, create a new section,
+ * unless the current section has zero size, in which case this specifies
+ * the current section's base address
+ */
+ if (section[image->num_sections].size != 0)
+ {
+ image->num_sections++;
+ section[image->num_sections].size = 0x0;
+ section[image->num_sections].flags = 0;
+ section[image->num_sections].private = &ihex->buffer[cooked_bytes];
+ }
+ section[image->num_sections].base_address =
+ (full_address & 0xffff) | (upper_address << 4);
+ full_address = (full_address & 0xffff) | (upper_address << 4);
+ }
+ }
else if (record_type == 4) /* Extended Linear Address Record */
{
u16 upper_address;
- sscanf(&buffer[raw_bytes], "%4hx", &upper_address);
+ sscanf(&lpszLine[bytes_read], "%4hx", &upper_address);
cal_checksum += (u8)(upper_address >> 8);
cal_checksum += (u8)upper_address;
- raw_bytes += 4;
+ bytes_read += 4;
if ((full_address >> 16) != upper_address)
{
{
u32 start_address;
- sscanf(&buffer[raw_bytes], "%8x", &start_address);
+ sscanf(&lpszLine[bytes_read], "%8x", &start_address);
cal_checksum += (u8)(start_address >> 24);
cal_checksum += (u8)(start_address >> 16);
cal_checksum += (u8)(start_address >> 8);
cal_checksum += (u8)start_address;
- raw_bytes += 8;
+ bytes_read += 8;
image->start_address_set = 1;
image->start_address = be_to_h_u32((u8*)&start_address);
}
else
{
- free(buffer);
ERROR("unhandled IHEX record type: %i", record_type);
return ERROR_IMAGE_FORMAT_ERROR;
}
- sscanf(&buffer[raw_bytes], "%2x", &checksum);
- raw_bytes += 2;
+ sscanf(&lpszLine[bytes_read], "%2x", &checksum);
+ bytes_read += 2;
if ((u8)checksum != (u8)(~cal_checksum + 1))
{
/* checksum failed */
- free(buffer);
ERROR("incorrect record checksum found in IHEX file");
return ERROR_IMAGE_CHECKSUM;
}
-
- /* consume new-line character(s) */
- if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r'))
- raw_bytes++;
-
- if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r'))
- raw_bytes++;
}
-
- free(buffer);
+
ERROR("premature end of IHEX file, no end-of-file record found");
return ERROR_IMAGE_FORMAT_ERROR;
}
{
image_mot_t *mot = image->type_private;
fileio_t *fileio = &mot->fileio;
- u32 raw_bytes_read, raw_bytes;
- int retval;
u32 full_address = 0x0;
- char *buffer = malloc(fileio->size);
u32 cooked_bytes;
int i;
+ char lpszLine[1023];
/* we can't determine the number of sections that we'll have to create ahead of time,
* so we locally hold them until parsing is finished */
image_section_t section[IMAGE_MAX_SECTIONS];
- if ((retval = fileio_read(fileio, fileio->size, (u8*)buffer, &raw_bytes_read)) != ERROR_OK)
- {
- free(buffer);
- ERROR("failed buffering S19 file, read failed");
- return ERROR_FILEIO_OPERATION_FAILED;
- }
-
- if (raw_bytes_read != fileio->size)
- {
- free(buffer);
- ERROR("failed buffering complete IHEX file, only partially read");
- return ERROR_FILEIO_OPERATION_FAILED;
- }
-
mot->buffer = malloc(fileio->size >> 1);
- raw_bytes = 0x0;
cooked_bytes = 0x0;
image->num_sections = 0;
section[image->num_sections].private = &mot->buffer[cooked_bytes];
section[image->num_sections].size = 0x0;
section[image->num_sections].flags = 0;
- while (raw_bytes < raw_bytes_read)
+ while (fileio_fgets(fileio, 1023, lpszLine) == ERROR_OK)
{
u32 count;
u32 address;
u32 record_type;
u32 checksum;
u8 cal_checksum = 0;
-
+ u32 bytes_read = 0;
+
/* get record type and record length */
- if (sscanf(&buffer[raw_bytes], "S%1x%2x", &record_type, &count) != 2)
+ if (sscanf(&lpszLine[bytes_read], "S%1x%2x", &record_type, &count) != 2)
{
return ERROR_IMAGE_FORMAT_ERROR;
}
- raw_bytes += 4;
+ bytes_read += 4;
cal_checksum += (u8)count;
/* skip checksum byte */
int iValue;
while (count-- > 0) {
- sscanf(&buffer[raw_bytes], "%2x", &iValue);
+ sscanf(&lpszLine[bytes_read], "%2x", &iValue);
cal_checksum += (u8)iValue;
- raw_bytes += 2;
+ bytes_read += 2;
}
}
else if (record_type >= 1 && record_type <= 3)
{
case 1:
/* S1 - 16 bit address data record */
- sscanf(&buffer[raw_bytes], "%4x", &address);
+ sscanf(&lpszLine[bytes_read], "%4x", &address);
cal_checksum += (u8)(address >> 8);
cal_checksum += (u8)address;
- raw_bytes += 4;
+ bytes_read += 4;
count -=2;
break;
case 2:
/* S2 - 24 bit address data record */
- sscanf(&buffer[raw_bytes], "%6x", &address);
+ sscanf(&lpszLine[bytes_read], "%6x", &address);
cal_checksum += (u8)(address >> 16);
cal_checksum += (u8)(address >> 8);
cal_checksum += (u8)address;
- raw_bytes += 6;
+ bytes_read += 6;
count -=3;
break;
case 3:
/* S3 - 32 bit address data record */
- sscanf(&buffer[raw_bytes], "%8x", &address);
+ sscanf(&lpszLine[bytes_read], "%8x", &address);
cal_checksum += (u8)(address >> 24);
cal_checksum += (u8)(address >> 16);
cal_checksum += (u8)(address >> 8);
cal_checksum += (u8)address;
- raw_bytes += 8;
+ bytes_read += 8;
count -=4;
break;
section[image->num_sections].flags = 0;
section[image->num_sections].private = &mot->buffer[cooked_bytes];
}
- section[image->num_sections].base_address =
- full_address | address;
- full_address = full_address | address;
+ section[image->num_sections].base_address = address;
+ full_address = address;
}
while (count-- > 0)
{
- sscanf(&buffer[raw_bytes], "%2hhx", &mot->buffer[cooked_bytes]);
+ sscanf(&lpszLine[bytes_read], "%2x", (u32*)&mot->buffer[cooked_bytes]);
cal_checksum += (u8)mot->buffer[cooked_bytes];
- raw_bytes += 2;
+ bytes_read += 2;
cooked_bytes += 1;
section[image->num_sections].size += 1;
full_address++;
image->sections[i].flags = section[i].flags;
}
- free(buffer);
return ERROR_OK;
}
else
{
- free(buffer);
ERROR("unhandled S19 record type: %i", record_type);
return ERROR_IMAGE_FORMAT_ERROR;
}
/* account for checksum, will always be 0xFF */
- sscanf(&buffer[raw_bytes], "%2x", &checksum);
+ sscanf(&lpszLine[bytes_read], "%2x", &checksum);
cal_checksum += (u8)checksum;
- raw_bytes += 2;
+ bytes_read += 2;
if( cal_checksum != 0xFF )
{
/* checksum failed */
- free(buffer);
ERROR("incorrect record checksum found in S19 file");
return ERROR_IMAGE_CHECKSUM;
}
-
- /* consume new-line character(s) */
- if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r'))
- raw_bytes++;
-
- if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r'))
- raw_bytes++;
}
-
- free(buffer);
+
ERROR("premature end of S19 file, no end-of-file record found");
return ERROR_IMAGE_FORMAT_ERROR;
}
return ERROR_OK;
}
+
+static u32 crc32_table[256] = {0, 0};
+
+int image_calculate_checksum(u8* buffer, u32 nbytes, u32* checksum)
+{
+ u32 crc = 0xffffffff;
+
+ if (!crc32_table[1])
+ {
+ /* Initialize the CRC table and the decoding table. */
+ int i, j;
+ unsigned int c;
+ for (i = 0; i < 256; i++)
+ {
+ /* as per gdb */
+ for (c = i << 24, j = 8; j > 0; --j)
+ c = c & 0x80000000 ? (c << 1) ^ 0x04c11db7 : (c << 1);
+ crc32_table[i] = c;
+ }
+ }
+
+ while (nbytes--)
+ {
+ /* as per gdb */
+ crc = (crc << 8) ^ crc32_table[((crc >> 24) ^ *buffer++) & 255];
+ }
+
+ *checksum = crc;
+ return ERROR_OK;
+}
+
projects / openocd / blobdiff