FreeCalypso > hg > freecalypso-sw

annotate target-utils/libcommon/cmd_memdump_machine.c @ 992:a7b0b426f9ca

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target-utils: boot ROM UART autodetection revamped The new implementation should work with both the familiar Calypso C035 boot ROM version found in our regular targets as well as the older Calypso F741979B version found on the vintage D-Sample board.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 30 Dec 2015 21:28:41 +0000
parents 1557e15a012f
children
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c0e063494194 loadagent built with memory dump commands
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1 /*
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2 * This is a machine-oriented memory dump command. The output is in the
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3 * form of S3 records.
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4 */
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5
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6 #include <sys/types.h>
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7 #include "types.h"
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8
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9 void
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10 cmd_memdump_machine(argbulk)
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11 char *argbulk;
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12 {
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13 char *argv[3];
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14 u_long start, length;
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15 u_long addr;
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16 u_char srbuf[0x86], cksum;
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17 int i;
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18
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19 if (parse_args(argbulk, 2, 2, argv, 0) < 0)
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20 return;
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21 if (parse_hexarg(argv[0], 8, &start) < 0) {
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22 printf("ERROR: arg1 must be a valid 32-bit hex address\n");
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23 return;
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24 }
24
9ee91bc6057c loadagent buglet in the memory dump command argument parsing
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25 if (parse_hexarg(argv[1], 8, &length) < 0) {
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26 printf("ERROR: arg2 must be a valid 32-bit hex value (length)\n");
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27 return;
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28 }
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29 if (start & 0x7F || length & 0x7F) {
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30 printf("ERROR: implementation limit: 128-byte alignment required\n");
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31 return;
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32 }
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33 srbuf[0] = 0x85;
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34 for (addr = start; addr < start + length; addr += 0x80) {
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35 srbuf[1] = addr >> 24;
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36 srbuf[2] = addr >> 16;
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37 srbuf[3] = addr >> 8;
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38 srbuf[4] = addr;
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39 bcopy(addr, srbuf + 5, 0x80);
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40 cksum = 0;
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41 for (i = 0; i < 0x85; i++)
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42 cksum += srbuf[i];
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43 srbuf[i] = ~cksum;
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44 putchar('S');
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45 putchar('3');
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46 for (i = 0; i < 0x86; i++)
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47 printf("%02X", srbuf[i]);
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48 putchar('\n');
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49 }
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50 }