gdb/gdb/remote-mips.c

211    These bytes contain an 18 bit checksum of the complete
213    CSUM[123] bytes.  The checksum is simply the twos complement
215    values of the checksum bytes are:
787 /* Get the checksum of a packet.  HDR points to the packet header.
799   /* The initial SYN is not included in the checksum.  */
917 	      /* We don't bother checking the checksum, or providing an
938 	  /* If the checksum does not match the trailer checksum, this
1095 	printf_unfiltered ("Bad checksum; data %d, trailer %d\n",
1099       /* The checksum failed.  Send an acknowledgement for the
2703  * start ---+ |        |       data        +- checksum
2711  *      S<type><length><address><data><checksum>
2715  *        is the number of bytes following upto the checksum. Note that
2733  *      - checksum
2745   unsigned char checksum;
2754   buf[2] = len + 4 + 1;		/* len + 4 byte address + 1 byte checksum */
2764   /* Note that the checksum is calculated on the raw data, not the
2767   checksum = 0;
2770     checksum += *buf++;
2772   *buf = ~checksum;
2786    'K'     clear checksum
2787    'C'     compare checksum (12bit value, not included in checksum calculation)
2806    at a time (range 0..63).  Keep a checksum if required (passed
2827   /* Deal with the checksum: */
2870   /* Add the checksum (without updating the value): */
2876   /* Forcing a checksum validation clears the sum: */
2882    for the checksum and line termination characters: */
2884 /* zero-fill, checksum, transfer end and line termination space. */
2906      the record, and a checksum record. */
3136   /* Zero the checksum */
3178 		/* This keeps a rolling checksum, until we decide to output