image.c

		image->sections = NULL;
	}
}

int image_calculate_checksum(u8* buffer, u32 nbytes, u32* checksum)
{
	u32 crc = 0xffffffff;
	LOG_DEBUG("Calculating checksum");

	u32 crc32_table[256];

	/* 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>0)
	{
		int run=nbytes;
		if (run>32768)
		{
			run=32768;
		}
		nbytes-=run;
		while (run--)
		{
			/* as per gdb */
			crc = (crc << 8) ^ crc32_table[((crc >> 24) ^ *buffer++) & 255];
		}
		keep_alive();
	}

	LOG_DEBUG("Calculating checksum done");

	*checksum = crc;
	return ERROR_OK;
}